- Linux-kselftest-mirror - lists.linaro.org

KernelCI Hackfest #2 - Sept 6-10 2021

by Guillaume Tucker

The first KernelCI hackfest[1] early June was successful in getting a number of kernel developers to work alongside the core KernelCI team. Test coverage was increased in particular with kselftest, LTP, KUnit and a new test suite for libcamera. We're now improving documentation and tooling to make it easier for anyone to get started. Find out more about KernelCI on https://kernelci.org. The second hackfest is scheduled for the 6th-10th September. It should be a good opportunity to start discussing and working on upstream kernel testing topics ahead of the Linux Plumbers Conference[2]. Here's the project board where anyone can already add some ideas: https://github.com/orgs/kernelci/projects/5 There is no registration system, but please reply to this email or send a message on IRC (#kernelci libera.chat) or kernelci.slack.com if you would like to take part so you'll get email updates and invitations to the meetings and open hours sessions online. You may just drop in and out at any point during the hackfest as you see fit. The hackfest features: * Daily open hours online using Big Blue Button to discuss things and get support from the KernelCI team * KernelCI team members available across most time zones to provide quick feedback * A curated list of topics and a project board to help set objectives and coordinate efforts between all contributors As always, KernelCI is at the service of the kernel community so please share any feedback you may have to help shape this upcoming hackfest in the best possible way. Thanks, Guillaume [1] https://foundation.kernelci.org/blog/2021/06/24/the-first-ever-kernelci-hac… [2] https://www.linuxplumbersconf.org/event/11/page/104-accepted-microconferenc…

4 years, 2 months

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Re: KernelCI Hackfest #2 - Sept 6-10 2021

by Guillaume Tucker

On 02/08/2021 10:00, Guillaume Tucker wrote: > The first KernelCI hackfest[1] early June was successful in getting > a number of kernel developers to work alongside the core KernelCI > team. Test coverage was increased in particular with kselftest, > LTP, KUnit and a new test suite for libcamera. We're now improving > documentation and tooling to make it easier for anyone to get > started. Find out more about KernelCI on https://kernelci.org. > > The second hackfest is scheduled for the 6th-10th September. It > should be a good opportunity to start discussing and working on > upstream kernel testing topics ahead of the Linux Plumbers > Conference[2]. Please find below some extra information for the KernelCI Hackfest which is taking place next week. We're expecting at least some contributors from the Civil Infrastructure Platform project, the Google Chrome OS kernel team, Collabora kernel developers and a few more from the wider Linux kernel community. If you need any direct support, please reply to this email or ask on kernelci.slack.com or IRC #kernelci (libera.chat). > Here's the project board where anyone can already add some ideas: > > https://github.com/orgs/kernelci/projects/5 In order to add an issue to the workboard, please first create one in a KernelCI GitHub repository such as kernelci-core: https://github.com/kernelci/kernelci-core/issues Each contributor to the hackfest should be added to the KernelCI "hackers" team, which has permission to edit the workboard. If you aren't part of this team yet, please ask and you'll be invited. Note: Having a GitHub account is not mandatory for taking part in the hackfest. It's mainly there to facilitate coordination, even though it is required in order to contribute to the KernelCI GitHub repositories. Contributions as part of the hackfest may also be in the kernel tree such as improvements to kselftest, KUnit or bug fixes, or other test suites such as LTP etc. > The hackfest features: > > * Daily open hours online using Big Blue Button to discuss things > and get support from the KernelCI team > > * KernelCI team members available across most time zones to provide > quick feedback > > * A curated list of topics and a project board to help set > objectives and coordinate efforts between all contributors Please see the table below with the proposed daily open hours to accommodate most time zones: Region Zone Time 1 Time 2 East Asia GMT+10 17:00-19:00 03:00-05:00 Europe GMT+2 09:00-11:00 19:00-21:00 UTC 07:00-09:00 17:00-19:00 West America GMT-7 00:00-02:00 10:00-12:00 They will be held as a Big Blue Button virtual conference with the same URL as the last hackfest. It's not being shared publicly to avoid any potential abuse, so please ask if you don't have it already. On Monday, the focus should be put on getting started and reviewing the backlog on the hackfest workboard to distribute things among people or help new contributors find topics suitable for them. Open hours are otherwise opportunities to get more direct support from the KernelCI team or discuss any topic. See you there! Best wishes, Guillaume > [1] https://foundation.kernelci.org/blog/2021/06/24/the-first-ever-kernelci-hac… > [2] https://www.linuxplumbersconf.org/event/11/page/104-accepted-microconferenc…

4 years, 2 months

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[REGRESSION] lkft kselftest for next-20210902

by lkft＠linaro.org

## Build * kernel: 5.14.0 * git: https://gitlab.com/Linaro/lkft/mirrors/next/linux-next * git branch: master * git commit: 34560ced20599a01660a693f464c7c7dc83db1d9 * git describe: next-20210902 * test details: https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20210902 ## Regressions (compared to next-20210831) * i386, kselftest-net - net.so_txtime.sh * qemu_arm, kselftest-cgroup - cgroup.test_freezer - cgroup.test_freezer.test_cgfreezer_migrate * qemu_arm, kselftest-rtc - rtc.rtctest * qemu_arm64, kselftest-cgroup - cgroup.test_freezer - cgroup.test_freezer.test_cgfreezer_ptrace * qemu_i386, kselftest-rtc - rtc.rtctest * qemu_x86_64, kselftest-timers - timers.rtcpie * x86, kselftest-cgroup - cgroup.test_freezer - cgroup.test_freezer.test_cgfreezer_ptrace * x86, kselftest-rtc - rtc.rtctest Reported-by: Linux Kernel Functional Testing <lkft(a)linaro.org> ## Fixes (compared to next-20210831) * dragonboard-410c, kselftest-capabilities - capabilities.test_execve * hi6220-hikey, kselftest-rtc - rtc.rtctest * i386, kselftest-rtc - rtc.rtctest * qemu_arm64, kselftest-timers - timers.rtcpie * qemu_x86_64, kselftest-rtc - rtc.rtctest * x15, kselftest-rtc - rtc.rtctest ## Test result summary total: 4712, pass: 2612, fail: 374, skip: 1726, xfail: 0 ## Build Summary ## Test suites summary * kselftest-android * kselftest-arm64 * kselftest-arm64/arm64.btitest.bti_c_func * kselftest-arm64/arm64.btitest.bti_j_func * kselftest-arm64/arm64.btitest.bti_jc_func * kselftest-arm64/arm64.btitest.bti_none_func * kselftest-arm64/arm64.btitest.nohint_func * kselftest-arm64/arm64.btitest.paciasp_func * kselftest-arm64/arm64.nobtitest.bti_c_func * kselftest-arm64/arm64.nobtitest.bti_j_func * kselftest-arm64/arm64.nobtitest.bti_jc_func * kselftest-arm64/arm64.nobtitest.bti_none_func * kselftest-arm64/arm64.nobtitest.nohint_func * kselftest-arm64/arm64.nobtitest.paciasp_func * kselftest-bpf * kselftest-breakpoints * kselftest-capabilities * kselftest-cgroup * kselftest-clone3 * kselftest-core * kselftest-cpu-hotplug * kselftest-cpufreq * kselftest-drivers * kselftest-efivarfs * kselftest-filesystems * kselftest-firmware * kselftest-fpu * kselftest-futex * kselftest-gpio * kselftest-intel_pstate * kselftest-ipc * kselftest-ir * kselftest-kcmp * kselftest-kexec * kselftest-kvm * kselftest-lib * kselftest-livepatch * kselftest-lkdtm * kselftest-membarrier * kselftest-memfd * kselftest-memory-hotplug * kselftest-mincore * kselftest-mount * kselftest-mqueue * kselftest-net * kselftest-netfilter * kselftest-nsfs * kselftest-openat2 * kselftest-pid_namespace * kselftest-pidfd * kselftest-proc * kselftest-pstore * kselftest-ptrace * kselftest-rseq * kselftest-rtc * kselftest-seccomp * kselftest-sigaltstack * kselftest-size * kselftest-splice * kselftest-static_keys * kselftest-sync * kselftest-sysctl * kselftest-tc-testing * kselftest-timens * kselftest-timers * kselftest-tmpfs * kselftest-tpm2 * kselftest-user * kselftest-vm * kselftest-x86 * kselftest-zram -- Linaro LKFT https://lkft.linaro.org

4 years, 2 months

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[GIT PULL] KUnit update for Linux 5.15-rc1

by Shuah Khan

Hi Linus, Please pull the following KUnit update for Linux 5.15-rc1. This KUnit update for Linux 5.15-rc1 adds new features and tests: tool: -- support for --kernel_args to allow setting module params -- support for --raw_output option to show just the kunit output during make tests: -- KUnit tests for checksums and timestamps -- Print test statistics on failure -- Integrates UBSAN into the KUnit testing framework. It fails KUnit tests whenever it reports undefined behavior. diff is attached. thanks, -- Shuah ---------------------------------------------------------------- The following changes since commit 2734d6c1b1a089fb593ef6a23d4b70903526fe0c: Linux 5.14-rc2 (2021-07-18 14:13:49 -0700) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest tags/linux-kselftest-kunit-5.15-rc1 for you to fetch changes up to acd8e8407b8fcc3229d6d8558cac338bea801aed: kunit: Print test statistics on failure (2021-08-13 13:38:31 -0600) ---------------------------------------------------------------- linux-kselftest-kunit-5.15-rc1 This KUnit update for Linux 5.15-rc1 adds new features and tests: tool: -- support for --kernel_args to allow setting module params -- support for --raw_output option to show just the kunit output during make tests: -- KUnit tests for checksums and timestamps -- Print test statistics on failure -- Integrates UBSAN into the KUnit testing framework. It fails KUnit tests whenever it reports undefined behavior. ---------------------------------------------------------------- Daniel Latypov (2): kunit: tool: add --kernel_args to allow setting module params kunit: tool: make --raw_output support only showing kunit output David Gow (2): fat: Add KUnit tests for checksums and timestamps kunit: Print test statistics on failure Uriel Guajardo (1): kunit: ubsan integration Documentation/dev-tools/kunit/kunit-tool.rst | 9 +- Documentation/dev-tools/kunit/running_tips.rst | 10 ++ fs/fat/.kunitconfig | 5 + fs/fat/Kconfig | 14 +- fs/fat/Makefile | 2 + fs/fat/fat_test.c | 196 +++++++++++++++++++++++++ fs/fat/misc.c | 3 + lib/kunit/test.c | 109 ++++++++++++++ lib/ubsan.c | 3 + tools/testing/kunit/kunit.py | 36 +++-- tools/testing/kunit/kunit_parser.py | 6 +- tools/testing/kunit/kunit_tool_test.py | 29 +++- 12 files changed, 398 insertions(+), 24 deletions(-) create mode 100644 fs/fat/.kunitconfig create mode 100644 fs/fat/fat_test.c ----------------------------------------------------------------

4 years, 2 months

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[REGRESSION] lkft kselftest for next-20210901

by lkft＠linaro.org

## Build * kernel: 5.14.0 * git: https://gitlab.com/Linaro/lkft/mirrors/next/linux-next * git branch: master * git commit: c1b13fe76e95c0f64c9dba9876dfbdb0bd862d99 * git describe: next-20210901 * test details: https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20210901 ## Regressions (compared to next-20210831) * qemu_arm, kselftest-cgroup - cgroup.test_freezer - cgroup.test_freezer.test_cgfreezer_migrate - cgroup.test_freezer.test_cgfreezer_ptrace * qemu_arm, kselftest-rtc - rtc.rtctest * qemu_arm64, kselftest-cgroup - cgroup.test_freezer - cgroup.test_freezer.test_cgfreezer_ptrace Reported-by: Linux Kernel Functional Testing <lkft(a)linaro.org> ## Fixes (compared to next-20210831) * dragonboard-410c, kselftest-capabilities - capabilities.test_execve * i386, kselftest-rtc - rtc.rtctest * qemu-arm64-gic-version2, kselftest-timers - timers.rtcpie * qemu-arm64-gic-version3, kselftest-timers - timers.rtcpie * x86, kselftest-cgroup - cgroup.test_freezer - cgroup.test_freezer.test_cgfreezer_ptrace * x86, kselftest-rtc - rtc.rtctest ## Test result summary total: 5353, pass: 3042, fail: 465, skip: 1846, xfail: 0 ## Build Summary ## Test suites summary * kselftest-android * kselftest-arm64 * kselftest-arm64/arm64.btitest.bti_c_func * kselftest-arm64/arm64.btitest.bti_j_func * kselftest-arm64/arm64.btitest.bti_jc_func * kselftest-arm64/arm64.btitest.bti_none_func * kselftest-arm64/arm64.btitest.nohint_func * kselftest-arm64/arm64.btitest.paciasp_func * kselftest-arm64/arm64.nobtitest.bti_c_func * kselftest-arm64/arm64.nobtitest.bti_j_func * kselftest-arm64/arm64.nobtitest.bti_jc_func * kselftest-arm64/arm64.nobtitest.bti_none_func * kselftest-arm64/arm64.nobtitest.nohint_func * kselftest-arm64/arm64.nobtitest.paciasp_func * kselftest-bpf * kselftest-breakpoints * kselftest-capabilities * kselftest-cgroup * kselftest-clone3 * kselftest-core * kselftest-cpu-hotplug * kselftest-cpufreq * kselftest-drivers * kselftest-efivarfs * kselftest-filesystems * kselftest-firmware * kselftest-fpu * kselftest-futex * kselftest-gpio * kselftest-intel_pstate * kselftest-ipc * kselftest-ir * kselftest-kcmp * kselftest-kexec * kselftest-kvm * kselftest-lib * kselftest-livepatch * kselftest-lkdtm * kselftest-membarrier * kselftest-memfd * kselftest-memory-hotplug * kselftest-mincore * kselftest-mount * kselftest-mqueue * kselftest-net * kselftest-netfilter * kselftest-nsfs * kselftest-openat2 * kselftest-pid_namespace * kselftest-pidfd * kselftest-proc * kselftest-pstore * kselftest-ptrace * kselftest-rseq * kselftest-rtc * kselftest-seccomp * kselftest-sigaltstack * kselftest-size * kselftest-splice * kselftest-static_keys * kselftest-sync * kselftest-sysctl * kselftest-tc-testing * kselftest-timens * kselftest-timers * kselftest-tmpfs * kselftest-tpm2 * kselftest-user * kselftest-vm * kselftest-x86 * kselftest-zram -- Linaro LKFT https://lkft.linaro.org

4 years, 2 months

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[PATCH v3 0/5] KVM: rseq: Fix and a test for a KVM+rseq bug

by Sean Christopherson

Patch 1 fixes a KVM+rseq bug where KVM's handling of TIF_NOTIFY_RESUME, e.g. for task migration, clears the flag without informing rseq and leads to stale data in userspace's rseq struct. Patch 2 is a cleanup to try and make future bugs less likely. It's also a baby step towards moving and renaming tracehook_notify_resume() since it has nothing to do with tracing. Patch 3 is a fix/cleanup to stop overriding x86's unistd_{32,64}.h when the include path (intentionally) omits tools' uapi headers. KVM's selftests do exactly that so that they can pick up the uapi headers from the installed kernel headers, and still use various tools/ headers that mirror kernel code, e.g. linux/types.h. This allows the new test in patch 4 to reference __NR_rseq without having to manually define it. Patch 4 is a regression test for the KVM+rseq bug. Patch 5 is a cleanup made possible by patch 3. Based on commit 835d31d319d9 ("Merge tag 'media/v5.15-1' of ..."). v3: - Collect Ack/Review. [Mathieu, Ben] - Add explicit smp_wmb() instead of relying on atomic_inc() to do a full barrier. [Mathieu] - Add lots and lots of comments in the selftest, especially around why the migration thread needs a udelay(). [Mathieu] - Delay between 1us and 10us to reduce the odds of having a hard dependency on arch/kernel behavior. [Mathieu] - Dropped an s390 change in patch 2 after a rebase to upstream master. v2: - https://lkml.kernel.org/r/20210820225002.310652-1-seanjc@google.com - Don't touch rseq_cs when handling KVM case so that rseq_syscall() will still detect a naughty userspace. [Mathieu] - Use a sequence counter + retry in the test to ensure the process isn't migrated between sched_getcpu() and reading rseq.cpu_id, i.e. to avoid a flaky test. [Mathieu] - Add Mathieu's ack for patch 2. - Add more comments in the test. v1: https://lkml.kernel.org/r/20210818001210.4073390-1-seanjc@google.com Sean Christopherson (5): KVM: rseq: Update rseq when processing NOTIFY_RESUME on xfer to KVM guest entry: rseq: Call rseq_handle_notify_resume() in tracehook_notify_resume() tools: Move x86 syscall number fallbacks to .../uapi/ KVM: selftests: Add a test for KVM_RUN+rseq to detect task migration bugs KVM: selftests: Remove __NR_userfaultfd syscall fallback arch/arm/kernel/signal.c | 1 - arch/arm64/kernel/signal.c | 1 - arch/csky/kernel/signal.c | 4 +- arch/mips/kernel/signal.c | 4 +- arch/powerpc/kernel/signal.c | 4 +- include/linux/tracehook.h | 2 + kernel/entry/common.c | 4 +- kernel/rseq.c | 14 +- .../x86/include/{ => uapi}/asm/unistd_32.h | 0 .../x86/include/{ => uapi}/asm/unistd_64.h | 3 - tools/testing/selftests/kvm/.gitignore | 1 + tools/testing/selftests/kvm/Makefile | 3 + tools/testing/selftests/kvm/rseq_test.c | 236 ++++++++++++++++++ 13 files changed, 257 insertions(+), 20 deletions(-) rename tools/arch/x86/include/{ => uapi}/asm/unistd_32.h (100%) rename tools/arch/x86/include/{ => uapi}/asm/unistd_64.h (83%) create mode 100644 tools/testing/selftests/kvm/rseq_test.c -- 2.33.0.153.gba50c8fa24-goog

4 years, 2 months

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[PATCH] kselftests/sched: cleanup the child processes

by Li Zhijian

Previously, 'make -C sched run_tests' will block forever when it occurs something wrong where the *selftests framework* is waiting for its child processes to exit. [root@iaas-rpma sched]# ./cs_prctl_test ## Create a thread/process/process group hiearchy Not a core sched system tid=74985, / tgid=74985 / pgid=74985: ffffffffffffffff Not a core sched system tid=74986, / tgid=74986 / pgid=74985: ffffffffffffffff Not a core sched system tid=74988, / tgid=74986 / pgid=74985: ffffffffffffffff Not a core sched system tid=74989, / tgid=74986 / pgid=74985: ffffffffffffffff Not a core sched system tid=74990, / tgid=74986 / pgid=74985: ffffffffffffffff Not a core sched system tid=74987, / tgid=74987 / pgid=74985: ffffffffffffffff Not a core sched system tid=74991, / tgid=74987 / pgid=74985: ffffffffffffffff Not a core sched system tid=74992, / tgid=74987 / pgid=74985: ffffffffffffffff Not a core sched system tid=74993, / tgid=74987 / pgid=74985: ffffffffffffffff Not a core sched system (268) FAILED: get_cs_cookie(0) == 0 ## Set a cookie on entire process group -1 = prctl(62, 1, 0, 2, 0) core_sched create failed -- PGID: Invalid argument (cs_prctl_test.c:272) - [root@iaas-rpma sched]# ps PID TTY TIME CMD 4605 pts/2 00:00:00 bash 74986 pts/2 00:00:00 cs_prctl_test 74987 pts/2 00:00:00 cs_prctl_test 74999 pts/2 00:00:00 ps CC: Philip Li <philip.li(a)intel.com> Reported-by: kernel test robot <lkp(a)intel.com> Signed-off-by: Li Zhijian <lizhijian(a)cn.fujitsu.com> --- tools/testing/selftests/sched/cs_prctl_test.c | 28 ++++++++++++------- 1 file changed, 18 insertions(+), 10 deletions(-) diff --git a/tools/testing/selftests/sched/cs_prctl_test.c b/tools/testing/selftests/sched/cs_prctl_test.c index 63fe6521c56d..1829383715c6 100644 --- a/tools/testing/selftests/sched/cs_prctl_test.c +++ b/tools/testing/selftests/sched/cs_prctl_test.c @@ -64,6 +64,17 @@ enum pid_type {PIDTYPE_PID = 0, PIDTYPE_TGID, PIDTYPE_PGID}; const int THREAD_CLONE_FLAGS = CLONE_THREAD | CLONE_SIGHAND | CLONE_FS | CLONE_VM | CLONE_FILES; +struct child_args { + int num_threads; + int pfd[2]; + int cpid; + int thr_tids[MAX_THREADS]; +}; + +static struct child_args procs[MAX_PROCESSES]; +static int num_processes = 2; +static int need_cleanup = 0; + static int _prctl(int option, unsigned long arg2, unsigned long arg3, unsigned long arg4, unsigned long arg5) { @@ -80,8 +91,14 @@ static int _prctl(int option, unsigned long arg2, unsigned long arg3, unsigned l #define handle_error(msg) __handle_error(__FILE__, __LINE__, msg) static void __handle_error(char *fn, int ln, char *msg) { + int pidx; printf("(%s:%d) - ", fn, ln); perror(msg); + if (need_cleanup) { + for (pidx = 0; pidx < num_processes; ++pidx) + kill(procs[pidx].cpid, 15); + need_cleanup = 0; + } exit(EXIT_FAILURE); } @@ -108,13 +125,6 @@ static unsigned long get_cs_cookie(int pid) return cookie; } -struct child_args { - int num_threads; - int pfd[2]; - int cpid; - int thr_tids[MAX_THREADS]; -}; - static int child_func_thread(void __attribute__((unused))*arg) { while (1) @@ -214,10 +224,7 @@ void _validate(int line, int val, char *msg) int main(int argc, char *argv[]) { - struct child_args procs[MAX_PROCESSES]; - int keypress = 0; - int num_processes = 2; int num_threads = 3; int delay = 0; int res = 0; @@ -264,6 +271,7 @@ int main(int argc, char *argv[]) printf("\n## Create a thread/process/process group hiearchy\n"); create_processes(num_processes, num_threads, procs); + need_cleanup = 1; disp_processes(num_processes, procs); validate(get_cs_cookie(0) == 0); -- 2.31.1

4 years, 2 months

2
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[PATCH v3] kunit: tool: improve compatibility of kunit_parser with KTAP specification

by Rae Moar

Update to kunit_parser to improve compatibility with KTAP specification including arbitrarily nested tests. Patch accomplishes three major changes: - Use a general Test object to represent all tests rather than TestCase and TestSuite objects. This allows for easier implementation of arbitrary levels of nested tests and promotes the idea that both test suites and test cases are tests. - Print errors incrementally rather than all at once after the parsing finishes to maximize information given to the user in the case of the parser given invalid input and to increase the helpfulness of the timestamps given during printing. Note that kunit.py parse does not print incrementally yet. However, this fix brings us closer to this feature. - Increase compatibility for different formats of input. Arbitrary levels of nested tests supported. Also, test cases and test suites are now supported to be present on the same level of testing. This patch now implements the KTAP specification as described here: https://lore.kernel.org/linux-kselftest/CA+GJov6tdjvY9x12JsJT14qn6c7NViJxqa…. This patch adjusts the kunit_tool_test.py file to check for the correct outputs from the new parser and adds a new test to check the parsing for a KTAP result log with correct format for multiple nested subtests (test_is_test_passed-all_passed_nested.log). This patch also alters the kunit_json.py file to allow for arbitrarily nested tests. Signed-off-by: Rae Moar <rmoar(a)google.com> Reviewed-by: Brendan Higgins <brendanhiggins(a)google.com> --- Change log from v2: https://lore.kernel.org/linux-kselftest/20210826195505.3066755-1-rmoar@goog… - Fixes bug of type disagreement in kunit_json.py for build_dir - Removes raw_output() - Changes docstrings in kunit_parser.py (class docstring, LineStream docstrings, add_error(), total(), get_status(), all parsing methods) - Fixes bug of not printing diagnostic log in the case of end of lines - Sets default status of all tests to TEST_CRASHED - Adds and prints empty tests with crashed status in case of missing tests - Prints 'subtest' in instance of 1 subtest instead of 'subtests' - Includes checking for 'BUG:' message in search of crash messages in log (note that parse_crash_in_log method could be removed but would require deleting tests in kunit_tool_test.py that include the crash message that is no longer used. If removed, parser would still print log in cases of test crashed or failure, which would now include missing subtests) - Fixes bug of including directives (other than SKIP) in test name when matching name in result line for subtests --- Change log from v1: https://lore.kernel.org/linux-kselftest/20210820200032.2178134-1-rmoar@goog… - Rebase onto kselftest/kunit branch - Add tests to kunit_tool_test.py to check parser is correctly stripping hyphen, producing correct json objects with nested tests, correctly passing kselftest TAP output, and correctly deals with missing test plan. - Fix bug to correctly match test name in instance of a missing test plan. - Fix bug in kunit_tool_test.py pointed out by Daniel where it was not correctly checking for a proper match to the '0 tests run!' error message. Reverts changes back to original. - A few minor changes to commit message using Daniel's comments. - Change docstrings using Daniel's comments to reduce: - Shortens some docstrings to be one-line or just description if it is self explanatory. - Remove explicit respecification of types of parameters and returns because this is already specified in the function annoations. However, some descriptions of the parameters and returns remain and some contain the type for context. Additionally, the types of public attributes of classes remain. - Remove any documentation of 'Return: None' - Remove docstrings of helper methods within other methods --- tools/testing/kunit/kunit_json.py | 56 +- tools/testing/kunit/kunit_parser.py | 1022 ++++++++++++----- tools/testing/kunit/kunit_tool_test.py | 132 ++- .../test_is_test_passed-all_passed_nested.log | 34 + .../test_is_test_passed-kselftest.log | 14 + .../test_is_test_passed-missing_plan.log | 31 + .../kunit/test_data/test_strip_hyphen.log | 16 + 7 files changed, 925 insertions(+), 380 deletions(-) create mode 100644 tools/testing/kunit/test_data/test_is_test_passed-all_passed_nested.log create mode 100644 tools/testing/kunit/test_data/test_is_test_passed-kselftest.log create mode 100644 tools/testing/kunit/test_data/test_is_test_passed-missing_plan.log create mode 100644 tools/testing/kunit/test_data/test_strip_hyphen.log diff --git a/tools/testing/kunit/kunit_json.py b/tools/testing/kunit/kunit_json.py index f5cca5c38cac..746bec72b9ac 100644 --- a/tools/testing/kunit/kunit_json.py +++ b/tools/testing/kunit/kunit_json.py @@ -11,47 +11,47 @@ import os import kunit_parser -from kunit_parser import TestStatus - -def get_json_result(test_result, def_config, build_dir, json_path) -> str: - sub_groups = [] - - # Each test suite is mapped to a KernelCI sub_group - for test_suite in test_result.suites: - sub_group = { - "name": test_suite.name, - "arch": "UM", - "defconfig": def_config, - "build_environment": build_dir, - "test_cases": [], - "lab_name": None, - "kernel": None, - "job": None, - "git_branch": "kselftest", - } - test_cases = [] - # TODO: Add attachments attribute in test_case with detailed - # failure message, see https://api.kernelci.org/schema-test-case.html#get - for case in test_suite.cases: - test_case = {"name": case.name, "status": "FAIL"} - if case.status == TestStatus.SUCCESS: +from kunit_parser import Test, TestResult, TestStatus +from typing import Any, Dict, Optional + +JsonObj = Dict[str, Any] + +def _get_group_json(test: Test, def_config: str, + build_dir: Optional[str]) -> JsonObj: + sub_groups = [] # List[JsonObj] + test_cases = [] # List[JsonObj] + + for subtest in test.subtests: + if len(subtest.subtests): + sub_group = _get_group_json(subtest, def_config, + build_dir) + sub_groups.append(sub_group) + else: + test_case = {"name": subtest.name, "status": "FAIL"} + if subtest.status == TestStatus.SUCCESS: test_case["status"] = "PASS" - elif case.status == TestStatus.TEST_CRASHED: + elif subtest.status == TestStatus.TEST_CRASHED: test_case["status"] = "ERROR" test_cases.append(test_case) - sub_group["test_cases"] = test_cases - sub_groups.append(sub_group) + test_group = { - "name": "KUnit Test Group", + "name": test.name, "arch": "UM", "defconfig": def_config, "build_environment": build_dir, "sub_groups": sub_groups, + "test_cases": test_cases, "lab_name": None, "kernel": None, "job": None, "git_branch": "kselftest", } + return test_group + +def get_json_result(test_result: TestResult, def_config: str, + build_dir: Optional[str], json_path: str) -> str: + test_group = _get_group_json(test_result.test, def_config, build_dir) + test_group["name"] = "KUnit Test Group" json_obj = json.dumps(test_group, indent=4) if json_path != 'stdout': with open(json_path, 'w') as result_path: diff --git a/tools/testing/kunit/kunit_parser.py b/tools/testing/kunit/kunit_parser.py index 6310a641b151..f1b28def3e78 100644 --- a/tools/testing/kunit/kunit_parser.py +++ b/tools/testing/kunit/kunit_parser.py @@ -1,11 +1,15 @@ # SPDX-License-Identifier: GPL-2.0 # -# Parses test results from a kernel dmesg log. +# Parses KTAP test results from a kernel dmesg log and incrementally prints +# results with reader-friendly format. Stores and returns test results in a +# Test object. # # Copyright (C) 2019, Google LLC. # Author: Felix Guo <felixguoxiuping(a)gmail.com> # Author: Brendan Higgins <brendanhiggins(a)google.com> +# Author: Rae Moar <rmoar(a)google.com> +from __future__ import annotations import re from collections import namedtuple @@ -14,33 +18,52 @@ from enum import Enum, auto from functools import reduce from typing import Iterable, Iterator, List, Optional, Tuple -TestResult = namedtuple('TestResult', ['status','suites','log']) - -class TestSuite(object): +TestResult = namedtuple('TestResult', ['status','test','log']) + +class Test(object): + """ + A class to represent a test parsed from KTAP results. All KTAP + results within a test log are stored in a main Test object as + subtests. + + Attributes: + status : TestStatus - status of the test + name : str - name of the test + expected_count : int - expected number of subtests (0 if single + test case and None if unknown expected number of subtests) + subtests : List[Test] - list of subtests + log : List[str] - log of KTAP lines that correspond to the test + counts : TestCounts - counts of the test statuses and errors of + subtests or of the test itself if the test is a single + test case. + """ def __init__(self) -> None: - self.status = TestStatus.SUCCESS - self.name = '' - self.cases = [] # type: List[TestCase] - - def __str__(self) -> str: - return 'TestSuite(' + str(self.status) + ',' + self.name + ',' + str(self.cases) + ')' - - def __repr__(self) -> str: - return str(self) - -class TestCase(object): - def __init__(self) -> None: - self.status = TestStatus.SUCCESS + """Creates Test object with default attributes.""" + self.status = TestStatus.TEST_CRASHED self.name = '' + self.expected_count = 0 # type: Optional[int] + self.subtests = [] # type: List[Test] self.log = [] # type: List[str] + self.counts = TestCounts() def __str__(self) -> str: - return 'TestCase(' + str(self.status) + ',' + self.name + ',' + str(self.log) + ')' + """Returns string representation of a Test class object.""" + return ('Test(' + str(self.status) + ', ' + self.name + + ', ' + str(self.expected_count) + ', ' + + str(self.subtests) + ', ' + str(self.log) + ', ' + + str(self.counts) + ')') def __repr__(self) -> str: + """Returns string representation of a Test class object.""" return str(self) + def add_error(self, error_message: str) -> None: + """Records an error that occurred while parsing this test.""" + self.counts.errors += 1 + print_error('Test ' + self.name + ': ' + error_message) + class TestStatus(Enum): + """An enumeration class to represent the status of a test.""" SUCCESS = auto() FAILURE = auto() SKIPPED = auto() @@ -48,381 +71,754 @@ class TestStatus(Enum): NO_TESTS = auto() FAILURE_TO_PARSE_TESTS = auto() +class TestCounts: + """ + Tracks the counts of statuses of all test cases and any errors within + a Test. + + Attributes: + passed : int - the number of tests that have passed + failed : int - the number of tests that have failed + crashed : int - the number of tests that have crashed + skipped : int - the number of tests that have skipped + errors : int - the number of errors in the test and subtests + """ + def __init__(self): + """Creates TestCounts object with counts of all test + statuses and test errors set to 0. + """ + self.passed = 0 + self.failed = 0 + self.crashed = 0 + self.skipped = 0 + self.errors = 0 + + def __str__(self) -> str: + """Returns the string representation of a TestCounts object. + """ + return ('Passed: ' + str(self.passed) + + ', Failed: ' + str(self.failed) + + ', Crashed: ' + str(self.crashed) + + ', Skipped: ' + str(self.skipped) + + ', Errors: ' + str(self.errors)) + + def total(self) -> int: + """Returns the total number of test cases within a test + object, where a test case is a test with no subtests. + """ + return (self.passed + self.failed + self.crashed + + self.skipped) + + def add_subtest_counts(self, counts: TestCounts) -> None: + """ + Adds the counts of another TestCounts object to the current + TestCounts object. Used to add the counts of a subtest to the + parent test. + + Parameters: + counts - a different TestCounts object whose counts + will be added to the counts of the TestCounts object + """ + self.passed += counts.passed + self.failed += counts.failed + self.crashed += counts.crashed + self.skipped += counts.skipped + self.errors += counts.errors + + def get_status(self) -> TestStatus: + """Returns the aggregated status of a Test using test + counts. + """ + if self.crashed: + # If one of the subtests crash, the expected status + # of the Test is crashed. + return TestStatus.TEST_CRASHED + elif self.failed: + # Otherwise if one of the subtests fail, the + # expected status of the Test is failed. + return TestStatus.FAILURE + elif self.passed: + # Otherwise if one of the subtests pass, the + # expected status of the Test is passed. + return TestStatus.SUCCESS + else: + # Finally, if none of the subtests have failed, + # crashed, or passed, the expected status of the + # Test is skipped. + return TestStatus.SKIPPED + + def add_status(self, status: TestStatus) -> None: + """ + Increments count of inputted status. + + Parameters: + status - status to be added to the TestCounts object + """ + if status == TestStatus.SUCCESS or \ + status == TestStatus.NO_TESTS: + # if status is NO_TESTS the most appropriate + # attribute to increment is passed because + # the test did not fail, crash or get skipped. + self.passed += 1 + elif status == TestStatus.FAILURE: + self.failed += 1 + elif status == TestStatus.SKIPPED: + self.skipped += 1 + else: + self.crashed += 1 + class LineStream: - """Provides a peek()/pop() interface over an iterator of (line#, text).""" + """ + A class to represent the lines of kernel output. + Provides a peek()/pop() interface over an iterator of + (line#, text). + """ _lines: Iterator[Tuple[int, str]] _next: Tuple[int, str] _done: bool def __init__(self, lines: Iterator[Tuple[int, str]]): + """Creates a new LineStream that wraps the given iterator.""" self._lines = lines self._done = False self._next = (0, '') self._get_next() def _get_next(self) -> None: + """Advances the LineSteam to the next line or sets the _done + attribute if the LineStream has reached the end of the lines. + """ try: self._next = next(self._lines) except StopIteration: self._done = True def peek(self) -> str: + """Returns the current line, without advancing the LineStream. + """ return self._next[1] def pop(self) -> str: + """Returns the current line and advances the LineStream to + the next line. + """ n = self._next self._get_next() return n[1] def __bool__(self) -> bool: + """Returns True if stream has more lines.""" return not self._done # Only used by kunit_tool_test.py. def __iter__(self) -> Iterator[str]: + """Empties all lines stored in LineStream object into + Iterator object and returns the Iterator object. + """ while bool(self): yield self.pop() def line_number(self) -> int: + """Returns the line number of the current line.""" return self._next[0] -kunit_start_re = re.compile(r'TAP version [0-9]+$') -kunit_end_re = re.compile('(List of all partitions:|' - 'Kernel panic - not syncing: VFS:|reboot: System halted)') +# Parsing helper methods: + +KTAP_START = re.compile(r'KTAP version ([0-9]+)$') +TAP_START = re.compile(r'TAP version ([0-9]+)$') +KTAP_END = re.compile('(List of all partitions:|' + 'Kernel panic - not syncing: VFS:|reboot: System halted)') def extract_tap_lines(kernel_output: Iterable[str]) -> LineStream: - def isolate_kunit_output(kernel_output: Iterable[str]) -> Iterator[Tuple[int, str]]: + """Extracts KTAP lines from inputted kernel output in LineStream + object.""" + def isolate_ktap_output(kernel_output: Iterable[str]) \ + -> Iterator[Tuple[int, str]]: line_num = 0 started = False for line in kernel_output: line_num += 1 - line = line.rstrip() # line always has a trailing \n - if kunit_start_re.search(line): + line = line.rstrip() # remove trailing \n + if not started and KTAP_START.search(line): + # start extracting KTAP lines and set prefix + # to number of characters before version line + prefix_len = len( + line.split('KTAP version')[0]) + started = True + yield line_num, line[prefix_len:] + elif not started and TAP_START.search(line): + # start extracting KTAP lines and set prefix + # to number of characters before version line prefix_len = len(line.split('TAP version')[0]) started = True yield line_num, line[prefix_len:] - elif kunit_end_re.search(line): + elif started and KTAP_END.search(line): + # stop extracting KTAP lines break elif started: - yield line_num, line[prefix_len:] - return LineStream(lines=isolate_kunit_output(kernel_output)) - -DIVIDER = '=' * 60 - -RESET = '\033[0;0m' - -def red(text) -> str: - return '\033[1;31m' + text + RESET - -def yellow(text) -> str: - return '\033[1;33m' + text + RESET - -def green(text) -> str: - return '\033[1;32m' + text + RESET - -def print_with_timestamp(message) -> None: - print('[%s] %s' % (datetime.now().strftime('%H:%M:%S'), message)) + # remove prefix and any indention and yield + # line with line number + line = line[prefix_len:].lstrip() + yield line_num, line + return LineStream(lines=isolate_ktap_output(kernel_output)) + +KTAP_VERSIONS = [1] +TAP_VERSIONS = [13, 14] + +def check_version(version_num: int, accepted_versions: List[int], + version_type: str, test: Test) -> None: + """ + Adds error to test object if version number is too high or too + low. + + Parameters: + version_num - The inputted version number from the parsed KTAP or TAP + header line + accepted_version - List of accepted KTAP or TAP versions + version_type - 'KTAP' or 'TAP' depending on the type of + version line. + test - Test object for current test being parsed + """ + if version_num < min(accepted_versions): + test.add_error(version_type + + ' version lower than expected!') + elif version_num > max(accepted_versions): + test.add_error( + version_type + ' version higher than expected!') + +def parse_ktap_header(lines: LineStream, test: Test) -> bool: + """ + Parses KTAP/TAP header line and checks version number. + Returns False if fails to parse KTAP/TAP header line. + + Accepted formats: + - 'KTAP version [version number]' + - 'TAP version [version number]' + + Parameters: + lines - LineStream of KTAP output to parse + test - Test object for current test being parsed + + Return: + True if successfully parsed KTAP/TAP header line + """ + ktap_match = KTAP_START.match(lines.peek()) + tap_match = TAP_START.match(lines.peek()) + if ktap_match: + version_num = int(ktap_match.group(1)) + check_version(version_num, KTAP_VERSIONS, 'KTAP', test) + elif tap_match: + version_num = int(tap_match.group(1)) + check_version(version_num, TAP_VERSIONS, 'TAP', test) + else: + return False + test.log.append(lines.pop()) + return True -def format_suite_divider(message) -> str: - return '======== ' + message + ' ========' +TEST_HEADER = re.compile(r'^# Subtest: (.*)$') -def print_suite_divider(message) -> None: - print_with_timestamp(DIVIDER) - print_with_timestamp(format_suite_divider(message)) +def parse_test_header(lines: LineStream, test: Test) -> bool: + """ + Parses test header and stores test name in test object. + Returns False if fails to parse test header line. -def print_log(log) -> None: - for m in log: - print_with_timestamp(m) + Accepted format: + - '# Subtest: [test name]' -TAP_ENTRIES = re.compile(r'^(TAP|[\s]*ok|[\s]*not ok|[\s]*[0-9]+\.\.[0-9]+|[\s]*# (Subtest:|.*: kunit test case crashed!)).*$') + Parameters: + lines - LineStream of ktap output to parse + test - Test object for current test being parsed -def consume_non_diagnostic(lines: LineStream) -> None: - while lines and not TAP_ENTRIES.match(lines.peek()): - lines.pop() - -def save_non_diagnostic(lines: LineStream, test_case: TestCase) -> None: - while lines and not TAP_ENTRIES.match(lines.peek()): - test_case.log.append(lines.peek()) - lines.pop() + Return: + True if successfully parsed test header line + """ + match = TEST_HEADER.match(lines.peek()) + if not match: + return False + test.log.append(lines.pop()) + test.name = match.group(1) + return True -OkNotOkResult = namedtuple('OkNotOkResult', ['is_ok','description', 'text']) +TEST_PLAN = re.compile(r'1\.\.([0-9]+)') -OK_NOT_OK_SKIP = re.compile(r'^[\s]*(ok|not ok) [0-9]+ - (.*) # SKIP(.*)$') +def parse_test_plan(lines: LineStream, test: Test) -> bool: + """ + Parses test plan line and stores the expected number of subtests in + test object. Reports an error if expected count is 0. + Returns False and reports missing test plan error if fails to parse + test plan. -OK_NOT_OK_SUBTEST = re.compile(r'^[\s]+(ok|not ok) [0-9]+ - (.*)$') + Accepted format: + - '1..[number of subtests]' -OK_NOT_OK_MODULE = re.compile(r'^(ok|not ok) ([0-9]+) - (.*)$') + Parameters: + lines - LineStream of ktap output to parse + test - Test object for current test being parsed -def parse_ok_not_ok_test_case(lines: LineStream, test_case: TestCase) -> bool: - save_non_diagnostic(lines, test_case) - if not lines: - test_case.status = TestStatus.TEST_CRASHED - return True - line = lines.peek() - match = OK_NOT_OK_SUBTEST.match(line) - while not match and lines: - line = lines.pop() - match = OK_NOT_OK_SUBTEST.match(line) - if match: - test_case.log.append(lines.pop()) - test_case.name = match.group(2) - skip_match = OK_NOT_OK_SKIP.match(line) - if skip_match: - test_case.status = TestStatus.SKIPPED - return True - if test_case.status == TestStatus.TEST_CRASHED: - return True - if match.group(1) == 'ok': - test_case.status = TestStatus.SUCCESS - else: - test_case.status = TestStatus.FAILURE - return True - else: + Return: + True if successfully parsed test plan line + """ + match = TEST_PLAN.match(lines.peek()) + if not match: + test.expected_count = None + test.add_error('missing plan line!') return False - -SUBTEST_DIAGNOSTIC = re.compile(r'^[\s]+# (.*)$') -DIAGNOSTIC_CRASH_MESSAGE = re.compile(r'^[\s]+# .*?: kunit test case crashed!$') - -def parse_diagnostic(lines: LineStream, test_case: TestCase) -> bool: - save_non_diagnostic(lines, test_case) - if not lines: + test.log.append(lines.pop()) + expected_count = int(match.group(1)) + test.expected_count = expected_count + if expected_count == 0: + test.status = TestStatus.NO_TESTS + test.add_error('0 tests run!') + return True + +TEST_RESULT = re.compile(r'^(ok|not ok) ([0-9]+) (- )?([^#]*)( # .*)?$') + +TEST_RESULT_SKIP = re.compile(r'^(ok|not ok) ([0-9]+) (- )?(.*) # SKIP(.*)$') + +def peek_test_name_match(lines: LineStream, test: Test) -> bool: + """ + Matches current line with the format of a test result line and checks + if the name matches the name of the current test. + Returns False if fails to match format or name. + + Accepted format: + - '[ok|not ok] [test number] [-] [test name] [optional skip + directive]' + + Parameters: + lines - LineStream of KTAP output to parse + test - Test object for current test being parsed + + Return: + True if matched a test result line and the name matching the + expected test name + """ + line = lines.peek() + match = TEST_RESULT.match(line) + if not match: return False + name = match.group(4) + return (name == test.name) + +def parse_test_result(lines: LineStream, test: Test, + expected_num: int) -> bool: + """ + Parses test result line and stores the status and name in the test + object. Reports an error if the test number does not match expected + test number. + Returns False if fails to parse test result line. + + Note that the SKIP directive is the only direction that causes a + change in status. + + Accepted format: + - '[ok|not ok] [test number] [-] [test name] [optional skip + directive]' + + Parameters: + lines - LineStream of KTAP output to parse + test - Test object for current test being parsed + expected_num - expected test number for current test + + Return: + True if successfully parsed a test result line. + """ line = lines.peek() - match = SUBTEST_DIAGNOSTIC.match(line) - if match: - test_case.log.append(lines.pop()) - crash_match = DIAGNOSTIC_CRASH_MESSAGE.match(line) - if crash_match: - test_case.status = TestStatus.TEST_CRASHED - return True - else: + match = TEST_RESULT.match(line) + skip_match = TEST_RESULT_SKIP.match(line) + + # Check if line matches test result line format + if not match: return False + test.log.append(lines.pop()) -def parse_test_case(lines: LineStream) -> Optional[TestCase]: - test_case = TestCase() - save_non_diagnostic(lines, test_case) - while parse_diagnostic(lines, test_case): - pass - if parse_ok_not_ok_test_case(lines, test_case): - return test_case + # Set name of test object + if skip_match: + test.name = skip_match.group(4) else: - return None - -SUBTEST_HEADER = re.compile(r'^[\s]+# Subtest: (.*)$') - -def parse_subtest_header(lines: LineStream) -> Optional[str]: - consume_non_diagnostic(lines) - if not lines: - return None - match = SUBTEST_HEADER.match(lines.peek()) - if match: - lines.pop() - return match.group(1) + test.name = match.group(4) + + # Check test num + num = int(match.group(2)) + if num != expected_num: + test.add_error('Expected test number ' + + str(expected_num) + ' but found ' + str(num)) + + # Set status of test object + status = match.group(1) + if skip_match: + test.status = TestStatus.SKIPPED + elif status == 'ok': + test.status = TestStatus.SUCCESS else: - return None + test.status = TestStatus.FAILURE + return True + +def parse_diagnostic(lines: LineStream) -> List[str]: + """ + Parse lines that do not match the format of a test result line or + test header line and returns them in list. + + Line formats that are not parsed: + - '# Subtest: [test name]' + - '[ok|not ok] [test number] [-] [test name] [optional skip + directive]' + + Parameters: + lines - LineStream of KTAP output to parse + + Return: + Log of diagnostic lines + """ + log = [] # type: List[str] + while lines and not TEST_RESULT.match(lines.peek()) and not \ + TEST_HEADER.match(lines.peek()): + log.append(lines.pop()) + return log + +DIAGNOSTIC_CRASH_MESSAGE = re.compile( + r'^(BUG:|# .*?: kunit test case crashed!$)') + +def parse_crash_in_log(test: Test) -> bool: + """ + Iterate through the lines of the log to parse for crash message. + If crash message found, set status to crashed and return True. + Otherwise return False. + + Parameters: + test - Test object for current test being parsed + + Return: + True if crash message found in log + """ + for line in test.log: + if DIAGNOSTIC_CRASH_MESSAGE.match(line): + test.status = TestStatus.TEST_CRASHED + return True + return False -SUBTEST_PLAN = re.compile(r'[\s]+[0-9]+\.\.([0-9]+)') -def parse_subtest_plan(lines: LineStream) -> Optional[int]: - consume_non_diagnostic(lines) - match = SUBTEST_PLAN.match(lines.peek()) - if match: - lines.pop() - return int(match.group(1)) - else: - return None - -def max_status(left: TestStatus, right: TestStatus) -> TestStatus: - if left == right: - return left - elif left == TestStatus.TEST_CRASHED or right == TestStatus.TEST_CRASHED: - return TestStatus.TEST_CRASHED - elif left == TestStatus.FAILURE or right == TestStatus.FAILURE: - return TestStatus.FAILURE - elif left == TestStatus.SKIPPED: - return right - else: - return left +# Printing helper methods: -def parse_ok_not_ok_test_suite(lines: LineStream, - test_suite: TestSuite, - expected_suite_index: int) -> bool: - consume_non_diagnostic(lines) - if not lines: - test_suite.status = TestStatus.TEST_CRASHED - return False - line = lines.peek() - match = OK_NOT_OK_MODULE.match(line) - if match: - lines.pop() - if match.group(1) == 'ok': - test_suite.status = TestStatus.SUCCESS - else: - test_suite.status = TestStatus.FAILURE - skip_match = OK_NOT_OK_SKIP.match(line) - if skip_match: - test_suite.status = TestStatus.SKIPPED - suite_index = int(match.group(2)) - if suite_index != expected_suite_index: - print_with_timestamp( - red('[ERROR] ') + 'expected_suite_index ' + - str(expected_suite_index) + ', but got ' + - str(suite_index)) - return True - else: - return False +DIVIDER = '=' * 60 -def bubble_up_errors(status_list: Iterable[TestStatus]) -> TestStatus: - return reduce(max_status, status_list, TestStatus.SKIPPED) +RESET = '\033[0;0m' -def bubble_up_test_case_errors(test_suite: TestSuite) -> TestStatus: - max_test_case_status = bubble_up_errors(x.status for x in test_suite.cases) - return max_status(max_test_case_status, test_suite.status) +def red(text: str) -> str: + """Returns inputted string with red color code.""" + return '\033[1;31m' + text + RESET -def parse_test_suite(lines: LineStream, expected_suite_index: int) -> Optional[TestSuite]: - if not lines: - return None - consume_non_diagnostic(lines) - test_suite = TestSuite() - test_suite.status = TestStatus.SUCCESS - name = parse_subtest_header(lines) - if not name: - return None - test_suite.name = name - expected_test_case_num = parse_subtest_plan(lines) - if expected_test_case_num is None: - return None - while expected_test_case_num > 0: - test_case = parse_test_case(lines) - if not test_case: - break - test_suite.cases.append(test_case) - expected_test_case_num -= 1 - if parse_ok_not_ok_test_suite(lines, test_suite, expected_suite_index): - test_suite.status = bubble_up_test_case_errors(test_suite) - return test_suite - elif not lines: - print_with_timestamp(red('[ERROR] ') + 'ran out of lines before end token') - return test_suite - else: - print(f'failed to parse end of suite "{name}", at line {lines.line_number()}: {lines.peek()}') - return None +def yellow(text: str) -> str: + """Returns inputted string with yellow color code.""" + return '\033[1;33m' + text + RESET -TAP_HEADER = re.compile(r'^TAP version 14$') +def green(text: str) -> str: + """Returns inputted string with green color code.""" + return '\033[1;32m' + text + RESET -def parse_tap_header(lines: LineStream) -> bool: - consume_non_diagnostic(lines) - if TAP_HEADER.match(lines.peek()): - lines.pop() - return True - else: - return False +ANSI_LEN = len(red('')) -TEST_PLAN = re.compile(r'[0-9]+\.\.([0-9]+)') +def print_with_timestamp(message: str) -> None: + """Prints message with timestamp at beginning.""" + print('[%s] %s' % (datetime.now().strftime('%H:%M:%S'), message)) -def parse_test_plan(lines: LineStream) -> Optional[int]: - consume_non_diagnostic(lines) - match = TEST_PLAN.match(lines.peek()) - if match: - lines.pop() - return int(match.group(1)) - else: - return None - -def bubble_up_suite_errors(test_suites: Iterable[TestSuite]) -> TestStatus: - return bubble_up_errors(x.status for x in test_suites) - -def parse_test_result(lines: LineStream) -> TestResult: - consume_non_diagnostic(lines) - if not lines or not parse_tap_header(lines): - return TestResult(TestStatus.FAILURE_TO_PARSE_TESTS, [], lines) - expected_test_suite_num = parse_test_plan(lines) - if expected_test_suite_num == 0: - return TestResult(TestStatus.NO_TESTS, [], lines) - elif expected_test_suite_num is None: - return TestResult(TestStatus.FAILURE_TO_PARSE_TESTS, [], lines) - test_suites = [] - for i in range(1, expected_test_suite_num + 1): - test_suite = parse_test_suite(lines, i) - if test_suite: - test_suites.append(test_suite) +def format_test_divider(message: str, len_message: int) -> str: + """ + Returns string with message centered in fixed width divider. + + Example: + '===================== message example =====================' + + Parameters: + message - message to be centered in divider line + len_message - length of the message to be printed such that + any characters of the color codes are not counted + + Return: + String containing message centered in fixed width divider + """ + default_count = 3 # default number of dashes + len_1 = default_count + len_2 = default_count + difference = len(DIVIDER) - len_message - 2 # 2 spaces added + if difference > 0: + # calculate number of dashes for each side of the divider + len_1 = int(difference / 2) + len_2 = difference - len_1 + return ('=' * len_1) + ' ' + message + ' ' + ('=' * len_2) + +def print_test_header(test: Test) -> None: + """ + Prints test header with test name and optionally the expected number + of subtests. + + Example: + '=================== example (2 subtests) ===================' + + Parameters: + test - Test object representing current test being printed + """ + message = test.name + if test.expected_count: + if test.expected_count == 1: + message += (' (' + str(test.expected_count) + + ' subtest)') else: - print_with_timestamp( - red('[ERROR] ') + ' expected ' + - str(expected_test_suite_num) + - ' test suites, but got ' + str(i - 2)) - break - test_suite = parse_test_suite(lines, -1) - if test_suite: - print_with_timestamp(red('[ERROR] ') + - 'got unexpected test suite: ' + test_suite.name) - if test_suites: - return TestResult(bubble_up_suite_errors(test_suites), test_suites, lines) - else: - return TestResult(TestStatus.NO_TESTS, [], lines) + message += (' (' + str(test.expected_count) + + ' subtests)') + print_with_timestamp(format_test_divider(message, len(message))) -class TestCounts: - passed: int - failed: int - crashed: int - skipped: int +def print_log(log: Iterable[str]) -> None: + """ + Prints all strings in saved log for test in yellow. - def __init__(self): - self.passed = 0 - self.failed = 0 - self.crashed = 0 - self.skipped = 0 - - def total(self) -> int: - return self.passed + self.failed + self.crashed + self.skipped - -def print_and_count_results(test_result: TestResult) -> TestCounts: - counts = TestCounts() - for test_suite in test_result.suites: - if test_suite.status == TestStatus.SUCCESS: - print_suite_divider(green('[PASSED] ') + test_suite.name) - elif test_suite.status == TestStatus.SKIPPED: - print_suite_divider(yellow('[SKIPPED] ') + test_suite.name) - elif test_suite.status == TestStatus.TEST_CRASHED: - print_suite_divider(red('[CRASHED] ' + test_suite.name)) - else: - print_suite_divider(red('[FAILED] ') + test_suite.name) - for test_case in test_suite.cases: - if test_case.status == TestStatus.SUCCESS: - counts.passed += 1 - print_with_timestamp(green('[PASSED] ') + test_case.name) - elif test_case.status == TestStatus.SKIPPED: - counts.skipped += 1 - print_with_timestamp(yellow('[SKIPPED] ') + test_case.name) - elif test_case.status == TestStatus.TEST_CRASHED: - counts.crashed += 1 - print_with_timestamp(red('[CRASHED] ' + test_case.name)) - print_log(map(yellow, test_case.log)) - print_with_timestamp('') + Parameters: + log - Iterable object with all strings saved in log for test + """ + for m in log: + print_with_timestamp(yellow(m)) + +def format_test_result(test: Test) -> str: + """ + Returns string with formatted test result with colored status and test + name. + + Example: + '[PASSED] example' + + Parameters: + test - Test object representing current test being printed + + Return: + String containing formatted test result + """ + if test.status == TestStatus.SUCCESS: + return (green('[PASSED] ') + test.name) + elif test.status == TestStatus.SKIPPED: + return (yellow('[SKIPPED] ') + test.name) + elif test.status == TestStatus.TEST_CRASHED: + print_log(test.log) + return (red('[CRASHED] ') + test.name) + else: + print_log(test.log) + return (red('[FAILED] ') + test.name) + +def print_test_result(test: Test) -> None: + """ + Prints result line with status of test. + + Example: + '[PASSED] example' + + Parameters: + test - Test object representing current test being printed + """ + print_with_timestamp(format_test_result(test)) + +def print_test_footer(test: Test) -> None: + """ + Prints test footer with status of test. + + Example: + '===================== [PASSED] example =====================' + + Parameters: + test - Test object representing current test being printed + """ + message = format_test_result(test) + print_with_timestamp(format_test_divider(message, + len(message) - ANSI_LEN)) + +def print_summary_line(test: Test) -> None: + """ + Prints summary line of test object. Color of line is dependent on + status of test. Color is green if test passes, yellow if test is + skipped, and red if the test fails or crashes. Summary line contains + counts of the statuses of the tests subtests or the test itself if it + has no subtests. + + Example: + "Testing complete. Passed: 2, Failed: 0, Crashed: 0, Skipped: 0, + Errors: 0" + + test - Test object representing current test being printed + """ + if test.status == TestStatus.SUCCESS or \ + test.status == TestStatus.NO_TESTS: + color = green + elif test.status == TestStatus.SKIPPED: + color = yellow + else: + color = red + counts = test.counts + print_with_timestamp(color('Testing complete. ' + str(counts))) + +def print_error(error_message: str) -> None: + """ + Prints error message with error format. + + Example: + "[ERROR] Test example: missing test plan!" + + Parameters: + error_message - message describing error + """ + print_with_timestamp(red('[ERROR] ') + error_message) + +# Other methods: + +def bubble_up_test_results(test: Test) -> None: + """ + If the test has subtests, add the test counts of the subtests to the + test and check if any of the tests crashed and if so set the test + status to crashed. Otherwise if the test has no subtests add the + status of the test to the test counts. + + Parameters: + test - Test object for current test being parsed + """ + parse_crash_in_log(test) + subtests = test.subtests + counts = test.counts + status = test.status + for t in subtests: + counts.add_subtest_counts(t.counts) + if counts.total() == 0: + counts.add_status(status) + elif test.counts.get_status() == TestStatus.TEST_CRASHED: + test.status = TestStatus.TEST_CRASHED + +def parse_test(lines: LineStream, expected_num: int, log: List[str]) -> Test: + """ + Finds next test to parse in LineStream, creates new Test object, + parses any subtests of the test, populates Test object with all + information (status, name) about the test and the Test objects for + any subtests, and then returns the Test object. The method accepts + three formats of tests: + + Accepted test formats: + + - Main KTAP/TAP header + + Example: + + KTAP version 1 + 1..4 + [subtests] + + - Subtest header line + + Example: + + # Subtest: name + 1..3 + [subtests] + ok 1 name + + - Test result line + + Example: + + ok 1 - test + + Parameters: + lines - LineStream of KTAP output to parse + expected_num - expected test number for test to be parsed + log - list of strings containing any preceding diagnostic lines + corresponding to the current test + + Return: + Test object populated with characteristics and any subtests + """ + test = Test() + test.log.extend(log) + parent_test = False + main = parse_ktap_header(lines, test) + if main: + # If KTAP/TAP header is found, attempt to parse + # test plan + test.name = "main" + parse_test_plan(lines, test) + else: + # If KTAP/TAP header is not found, test must be subtest + # header or test result line so parse attempt to parser + # subtest header + parent_test = parse_test_header(lines, test) + if parent_test: + # If subtest header is found, attempt to parse + # test plan and print header + parse_test_plan(lines, test) + print_test_header(test) + expected_count = test.expected_count + subtests = [] + test_num = 1 + while expected_count is None or test_num <= expected_count: + # Loop to parse any subtests. + # Break after parsing expected number of tests or + # if expected number of tests is unknown break when test + # result line with matching name to subtest header is found + # or no more lines in stream. + sub_log = parse_diagnostic(lines) + sub_test = Test() + if not lines or (peek_test_name_match(lines, test) and + not main): + if expected_count and test_num <= expected_count: + # If parser reaches end of test before + # parsing expected number of subtests, print + # crashed subtest and record error + test.add_error('missing expected subtest!') + sub_test.log.extend(sub_log) + test.counts.add_status( + TestStatus.TEST_CRASHED) + print_test_result(sub_test) else: - counts.failed += 1 - print_with_timestamp(red('[FAILED] ') + test_case.name) - print_log(map(yellow, test_case.log)) - print_with_timestamp('') - return counts + test.log.extend(sub_log) + break + else: + sub_test = parse_test(lines, test_num, sub_log) + subtests.append(sub_test) + test_num += 1 + test.subtests = subtests + if not main: + # If not main test, look for test result line + test.log.extend(parse_diagnostic(lines)) + if (parent_test and peek_test_name_match(lines, test)) or \ + not parent_test: + parse_test_result(lines, test, expected_num) + else: + test.add_error('missing subtest result line!') + # Add statuses to TestCounts attribute in Test object + bubble_up_test_results(test) + if parent_test: + # If test has subtests and is not the main test object, print + # footer. + print_test_footer(test) + elif not main: + print_test_result(test) + return test def parse_run_tests(kernel_output: Iterable[str]) -> TestResult: - counts = TestCounts() + """ + Using kernel output, extract KTAP lines, parse the lines for test + results and print condensed test results and summary line . + + Parameters: + kernel_output - Iterable object contains lines of kernel output + + Return: + TestResult - Tuple containg status of main test object, main test + object with all subtests, and log of all KTAP lines. + """ + print_with_timestamp(DIVIDER) lines = extract_tap_lines(kernel_output) - test_result = parse_test_result(lines) - if test_result.status == TestStatus.NO_TESTS: - print(red('[ERROR] ') + yellow('no tests run!')) - elif test_result.status == TestStatus.FAILURE_TO_PARSE_TESTS: - print(red('[ERROR] ') + yellow('could not parse test results!')) + test = Test() + if not lines: + test.add_error('invalid KTAP input!') + test.status = TestStatus.FAILURE_TO_PARSE_TESTS else: - counts = print_and_count_results(test_result) + test = parse_test(lines, 0, []) + if test.status != TestStatus.NO_TESTS: + test.status = test.counts.get_status() print_with_timestamp(DIVIDER) - if test_result.status == TestStatus.SUCCESS: - fmt = green - elif test_result.status == TestStatus.SKIPPED: - fmt = yellow - else: - fmt =red - print_with_timestamp( - fmt('Testing complete. %d tests run. %d failed. %d crashed. %d skipped.' % - (counts.total(), counts.failed, counts.crashed, counts.skipped))) - return test_result + print_summary_line(test) + return TestResult(test.status, test, lines) diff --git a/tools/testing/kunit/kunit_tool_test.py b/tools/testing/kunit/kunit_tool_test.py index 619c4554cbff..2a8b0b5f4269 100755 --- a/tools/testing/kunit/kunit_tool_test.py +++ b/tools/testing/kunit/kunit_tool_test.py @@ -106,10 +106,10 @@ class KUnitParserTest(unittest.TestCase): with open(log_path) as file: result = kunit_parser.extract_tap_lines(file.readlines()) self.assertContains('TAP version 14', result) - self.assertContains(' # Subtest: example', result) - self.assertContains(' 1..2', result) - self.assertContains(' ok 1 - example_simple_test', result) - self.assertContains(' ok 2 - example_mock_test', result) + self.assertContains('# Subtest: example', result) + self.assertContains('1..2', result) + self.assertContains('ok 1 - example_simple_test', result) + self.assertContains('ok 2 - example_mock_test', result) self.assertContains('ok 1 - example', result) def test_output_with_prefix_isolated_correctly(self): @@ -117,28 +117,28 @@ class KUnitParserTest(unittest.TestCase): with open(log_path) as file: result = kunit_parser.extract_tap_lines(file.readlines()) self.assertContains('TAP version 14', result) - self.assertContains(' # Subtest: kunit-resource-test', result) - self.assertContains(' 1..5', result) - self.assertContains(' ok 1 - kunit_resource_test_init_resources', result) - self.assertContains(' ok 2 - kunit_resource_test_alloc_resource', result) - self.assertContains(' ok 3 - kunit_resource_test_destroy_resource', result) - self.assertContains(' foo bar #', result) - self.assertContains(' ok 4 - kunit_resource_test_cleanup_resources', result) - self.assertContains(' ok 5 - kunit_resource_test_proper_free_ordering', result) + self.assertContains('# Subtest: kunit-resource-test', result) + self.assertContains('1..5', result) + self.assertContains('ok 1 - kunit_resource_test_init_resources', result) + self.assertContains('ok 2 - kunit_resource_test_alloc_resource', result) + self.assertContains('ok 3 - kunit_resource_test_destroy_resource', result) + self.assertContains('foo bar #', result) + self.assertContains('ok 4 - kunit_resource_test_cleanup_resources', result) + self.assertContains('ok 5 - kunit_resource_test_proper_free_ordering', result) self.assertContains('ok 1 - kunit-resource-test', result) - self.assertContains(' foo bar # non-kunit output', result) - self.assertContains(' # Subtest: kunit-try-catch-test', result) - self.assertContains(' 1..2', result) - self.assertContains(' ok 1 - kunit_test_try_catch_successful_try_no_catch', + self.assertContains('foo bar # non-kunit output', result) + self.assertContains('# Subtest: kunit-try-catch-test', result) + self.assertContains('1..2', result) + self.assertContains('ok 1 - kunit_test_try_catch_successful_try_no_catch', result) - self.assertContains(' ok 2 - kunit_test_try_catch_unsuccessful_try_does_catch', + self.assertContains('ok 2 - kunit_test_try_catch_unsuccessful_try_does_catch', result) self.assertContains('ok 2 - kunit-try-catch-test', result) - self.assertContains(' # Subtest: string-stream-test', result) - self.assertContains(' 1..3', result) - self.assertContains(' ok 1 - string_stream_test_empty_on_creation', result) - self.assertContains(' ok 2 - string_stream_test_not_empty_after_add', result) - self.assertContains(' ok 3 - string_stream_test_get_string', result) + self.assertContains('# Subtest: string-stream-test', result) + self.assertContains('1..3', result) + self.assertContains('ok 1 - string_stream_test_empty_on_creation', result) + self.assertContains('ok 2 - string_stream_test_not_empty_after_add', result) + self.assertContains('ok 3 - string_stream_test_get_string', result) self.assertContains('ok 3 - string-stream-test', result) def test_parse_successful_test_log(self): @@ -148,6 +148,13 @@ class KUnitParserTest(unittest.TestCase): self.assertEqual( kunit_parser.TestStatus.SUCCESS, result.status) + def test_parse_successful_nested_tests_log(self): + all_passed_log = test_data_path('test_is_test_passed-all_passed_nested.log') + with open(all_passed_log) as file: + result = kunit_parser.parse_run_tests(file.readlines()) + self.assertEqual( + kunit_parser.TestStatus.SUCCESS, + result.status) def test_parse_failed_test_log(self): failed_log = test_data_path('test_is_test_passed-failure.log') @@ -162,17 +169,31 @@ class KUnitParserTest(unittest.TestCase): with open(empty_log) as file: result = kunit_parser.parse_run_tests( kunit_parser.extract_tap_lines(file.readlines())) - self.assertEqual(0, len(result.suites)) + self.assertEqual(0, len(result.test.subtests)) self.assertEqual( kunit_parser.TestStatus.FAILURE_TO_PARSE_TESTS, result.status) + def test_missing_test_plan(self): + missing_plan_log = test_data_path('test_is_test_passed-' + 'missing_plan.log') + with open(missing_plan_log) as file: + result = kunit_parser.parse_run_tests( + kunit_parser.extract_tap_lines( + file.readlines())) + self.assertEqual(2, result.test.counts.errors) + self.assertEqual( + kunit_parser.TestStatus.SUCCESS, + result.status) + def test_no_tests(self): - empty_log = test_data_path('test_is_test_passed-no_tests_run_with_header.log') - with open(empty_log) as file: + header_log = test_data_path('test_is_test_passed-' + 'no_tests_run_with_header.log') + with open(header_log) as file: result = kunit_parser.parse_run_tests( - kunit_parser.extract_tap_lines(file.readlines())) - self.assertEqual(0, len(result.suites)) + kunit_parser.extract_tap_lines( + file.readlines())) + self.assertEqual(0, len(result.test.subtests)) self.assertEqual( kunit_parser.TestStatus.NO_TESTS, result.status) @@ -182,15 +203,17 @@ class KUnitParserTest(unittest.TestCase): print_mock = mock.patch('builtins.print').start() with open(crash_log) as file: result = kunit_parser.parse_run_tests( - kunit_parser.extract_tap_lines(file.readlines())) - print_mock.assert_any_call(StrContains('could not parse test results!')) + kunit_parser.extract_tap_lines( + file.readlines())) + print_mock.assert_any_call(StrContains('invalid KTAP input!')) print_mock.stop() file.close() def test_crashed_test(self): crashed_log = test_data_path('test_is_test_passed-crash.log') with open(crashed_log) as file: - result = kunit_parser.parse_run_tests(file.readlines()) + result = kunit_parser.parse_run_tests( + file.readlines()) self.assertEqual( kunit_parser.TestStatus.TEST_CRASHED, result.status) @@ -216,6 +239,23 @@ class KUnitParserTest(unittest.TestCase): result.status) file.close() + def test_ignores_hyphen(self): + hyphen_log = test_data_path('test_strip_hyphen.log') + file = open(hyphen_log) + result = kunit_parser.parse_run_tests(file.readlines()) + + # A skipped test does not fail the whole suite. + self.assertEqual( + kunit_parser.TestStatus.SUCCESS, + result.status) + self.assertEqual( + "sysctl_test", + result.test.subtests[0].name) + self.assertEqual( + "example", + result.test.subtests[1].name) + file.close() + def test_ignores_prefix_printk_time(self): prefix_log = test_data_path('test_config_printk_time.log') @@ -224,7 +264,7 @@ class KUnitParserTest(unittest.TestCase): self.assertEqual( kunit_parser.TestStatus.SUCCESS, result.status) - self.assertEqual('kunit-resource-test', result.suites[0].name) + self.assertEqual('kunit-resource-test', result.test.subtests[0].name) def test_ignores_multiple_prefixes(self): prefix_log = test_data_path('test_multiple_prefixes.log') @@ -233,7 +273,7 @@ class KUnitParserTest(unittest.TestCase): self.assertEqual( kunit_parser.TestStatus.SUCCESS, result.status) - self.assertEqual('kunit-resource-test', result.suites[0].name) + self.assertEqual('kunit-resource-test', result.test.subtests[0].name) def test_prefix_mixed_kernel_output(self): mixed_prefix_log = test_data_path('test_interrupted_tap_output.log') @@ -242,7 +282,7 @@ class KUnitParserTest(unittest.TestCase): self.assertEqual( kunit_parser.TestStatus.SUCCESS, result.status) - self.assertEqual('kunit-resource-test', result.suites[0].name) + self.assertEqual('kunit-resource-test', result.test.subtests[0].name) def test_prefix_poundsign(self): pound_log = test_data_path('test_pound_sign.log') @@ -251,7 +291,7 @@ class KUnitParserTest(unittest.TestCase): self.assertEqual( kunit_parser.TestStatus.SUCCESS, result.status) - self.assertEqual('kunit-resource-test', result.suites[0].name) + self.assertEqual('kunit-resource-test', result.test.subtests[0].name) def test_kernel_panic_end(self): panic_log = test_data_path('test_kernel_panic_interrupt.log') @@ -260,7 +300,7 @@ class KUnitParserTest(unittest.TestCase): self.assertEqual( kunit_parser.TestStatus.TEST_CRASHED, result.status) - self.assertEqual('kunit-resource-test', result.suites[0].name) + self.assertEqual('kunit-resource-test', result.test.subtests[0].name) def test_pound_no_prefix(self): pound_log = test_data_path('test_pound_no_prefix.log') @@ -269,7 +309,7 @@ class KUnitParserTest(unittest.TestCase): self.assertEqual( kunit_parser.TestStatus.SUCCESS, result.status) - self.assertEqual('kunit-resource-test', result.suites[0].name) + self.assertEqual('kunit-resource-test', result.test.subtests[0].name) class LinuxSourceTreeTest(unittest.TestCase): @@ -291,6 +331,14 @@ class LinuxSourceTreeTest(unittest.TestCase): pass tree = kunit_kernel.LinuxSourceTree('', kunitconfig_path=dir) + def test_kselftest_nested(self): + kselftest_log = test_data_path('test_is_test_passed-kselftest.log') + with open(kselftest_log) as file: + result = kunit_parser.parse_run_tests(file.readlines()) + self.assertEqual( + kunit_parser.TestStatus.SUCCESS, + result.status) + # TODO: add more test cases. @@ -322,6 +370,12 @@ class KUnitJsonTest(unittest.TestCase): result = self._json_for('test_is_test_passed-no_tests_run_with_header.log') self.assertEqual(0, len(result['sub_groups'])) + def test_nested_json(self): + result = self._json_for('test_is_test_passed-all_passed_nested.log') + self.assertEqual( + {'name': 'example_simple_test', 'status': 'PASS'}, + result["sub_groups"][0]["sub_groups"][0]["test_cases"][0]) + class StrContains(str): def __eq__(self, other): return self in other @@ -380,7 +434,7 @@ class KUnitMainTest(unittest.TestCase): self.assertEqual(e.exception.code, 1) self.assertEqual(self.linux_source_mock.build_reconfig.call_count, 1) self.assertEqual(self.linux_source_mock.run_kernel.call_count, 1) - self.print_mock.assert_any_call(StrContains(' 0 tests run')) + self.print_mock.assert_any_call(StrContains('invalid KTAP input!')) def test_exec_raw_output(self): self.linux_source_mock.run_kernel = mock.Mock(return_value=[]) @@ -388,7 +442,7 @@ class KUnitMainTest(unittest.TestCase): self.assertEqual(self.linux_source_mock.run_kernel.call_count, 1) for call in self.print_mock.call_args_list: self.assertNotEqual(call, mock.call(StrContains('Testing complete.'))) - self.assertNotEqual(call, mock.call(StrContains(' 0 tests run'))) + self.assertNotEqual(call, mock.call(StrContains(' 0 tests run!'))) def test_run_raw_output(self): self.linux_source_mock.run_kernel = mock.Mock(return_value=[]) @@ -397,7 +451,7 @@ class KUnitMainTest(unittest.TestCase): self.assertEqual(self.linux_source_mock.run_kernel.call_count, 1) for call in self.print_mock.call_args_list: self.assertNotEqual(call, mock.call(StrContains('Testing complete.'))) - self.assertNotEqual(call, mock.call(StrContains(' 0 tests run'))) + self.assertNotEqual(call, mock.call(StrContains(' 0 tests run!'))) def test_run_raw_output_kunit(self): self.linux_source_mock.run_kernel = mock.Mock(return_value=[]) diff --git a/tools/testing/kunit/test_data/test_is_test_passed-all_passed_nested.log b/tools/testing/kunit/test_data/test_is_test_passed-all_passed_nested.log new file mode 100644 index 000000000000..9d5b04fe43a6 --- /dev/null +++ b/tools/testing/kunit/test_data/test_is_test_passed-all_passed_nested.log @@ -0,0 +1,34 @@ +TAP version 14 +1..2 + # Subtest: sysctl_test + 1..4 + # sysctl_test_dointvec_null_tbl_data: sysctl_test_dointvec_null_tbl_data passed + ok 1 - sysctl_test_dointvec_null_tbl_data + # Subtest: example + 1..2 + init_suite + # example_simple_test: initializing + # example_simple_test: example_simple_test passed + ok 1 - example_simple_test + # example_mock_test: initializing + # example_mock_test: example_mock_test passed + ok 2 - example_mock_test + kunit example: all tests passed + ok 2 - example + # sysctl_test_dointvec_table_len_is_zero: sysctl_test_dointvec_table_len_is_zero passed + ok 3 - sysctl_test_dointvec_table_len_is_zero + # sysctl_test_dointvec_table_read_but_position_set: sysctl_test_dointvec_table_read_but_position_set passed + ok 4 - sysctl_test_dointvec_table_read_but_position_set +kunit sysctl_test: all tests passed +ok 1 - sysctl_test + # Subtest: example + 1..2 +init_suite + # example_simple_test: initializing + # example_simple_test: example_simple_test passed + ok 1 - example_simple_test + # example_mock_test: initializing + # example_mock_test: example_mock_test passed + ok 2 - example_mock_test +kunit example: all tests passed +ok 2 - example diff --git a/tools/testing/kunit/test_data/test_is_test_passed-kselftest.log b/tools/testing/kunit/test_data/test_is_test_passed-kselftest.log new file mode 100644 index 000000000000..65d3f27feaf2 --- /dev/null +++ b/tools/testing/kunit/test_data/test_is_test_passed-kselftest.log @@ -0,0 +1,14 @@ +TAP version 13 +1..2 +# selftests: membarrier: membarrier_test_single_thread +# TAP version 13 +# 1..2 +# ok 1 sys_membarrier available +# ok 2 sys membarrier invalid command test: command = -1, flags = 0, errno = 22. Failed as expected +ok 1 selftests: membarrier: membarrier_test_single_thread +# selftests: membarrier: membarrier_test_multi_thread +# TAP version 13 +# 1..2 +# ok 1 sys_membarrier available +# ok 2 sys membarrier invalid command test: command = -1, flags = 0, errno = 22. Failed as expected +ok 2 selftests: membarrier: membarrier_test_multi_thread diff --git a/tools/testing/kunit/test_data/test_is_test_passed-missing_plan.log b/tools/testing/kunit/test_data/test_is_test_passed-missing_plan.log new file mode 100644 index 000000000000..5cd17b7f818a --- /dev/null +++ b/tools/testing/kunit/test_data/test_is_test_passed-missing_plan.log @@ -0,0 +1,31 @@ +KTAP version 1 + # Subtest: sysctl_test + # sysctl_test_dointvec_null_tbl_data: sysctl_test_dointvec_null_tbl_data passed + ok 1 - sysctl_test_dointvec_null_tbl_data + # sysctl_test_dointvec_table_maxlen_unset: sysctl_test_dointvec_table_maxlen_unset passed + ok 2 - sysctl_test_dointvec_table_maxlen_unset + # sysctl_test_dointvec_table_len_is_zero: sysctl_test_dointvec_table_len_is_zero passed + ok 3 - sysctl_test_dointvec_table_len_is_zero + # sysctl_test_dointvec_table_read_but_position_set: sysctl_test_dointvec_table_read_but_position_set passed + ok 4 - sysctl_test_dointvec_table_read_but_position_set + # sysctl_test_dointvec_happy_single_positive: sysctl_test_dointvec_happy_single_positive passed + ok 5 - sysctl_test_dointvec_happy_single_positive + # sysctl_test_dointvec_happy_single_negative: sysctl_test_dointvec_happy_single_negative passed + ok 6 - sysctl_test_dointvec_happy_single_negative + # sysctl_test_dointvec_single_less_int_min: sysctl_test_dointvec_single_less_int_min passed + ok 7 - sysctl_test_dointvec_single_less_int_min + # sysctl_test_dointvec_single_greater_int_max: sysctl_test_dointvec_single_greater_int_max passed + ok 8 - sysctl_test_dointvec_single_greater_int_max +kunit sysctl_test: all tests passed +ok 1 - sysctl_test + # Subtest: example + 1..2 +init_suite + # example_simple_test: initializing + # example_simple_test: example_simple_test passed + ok 1 - example_simple_test + # example_mock_test: initializing + # example_mock_test: example_mock_test passed + ok 2 - example_mock_test +kunit example: all tests passed +ok 2 - example diff --git a/tools/testing/kunit/test_data/test_strip_hyphen.log b/tools/testing/kunit/test_data/test_strip_hyphen.log new file mode 100644 index 000000000000..92ac7c24b374 --- /dev/null +++ b/tools/testing/kunit/test_data/test_strip_hyphen.log @@ -0,0 +1,16 @@ +KTAP version 1 +1..2 + # Subtest: sysctl_test + 1..1 + # sysctl_test_dointvec_null_tbl_data: sysctl_test_dointvec_null_tbl_data passed + ok 1 - sysctl_test_dointvec_null_tbl_data +kunit sysctl_test: all tests passed +ok 1 - sysctl_test + # Subtest: example + 1..1 +init_suite + # example_simple_test: initializing + # example_simple_test: example_simple_test passed + ok 1 example_simple_test +kunit example: all tests passed +ok 2 example -- 2.33.0.259.gc128427fd7-goog

4 years, 2 months

1
0
0 0

[RFC v2 net-next 0/2] Add RTNL interface for SyncE

by Maciej Machnikowski

Synchronous Ethernet networks use a physical layer clock to syntonize the frequency across different network elements. Multiple reference clock sources can be used. Clocks recovered from PHY ports on the RX side or external sources like 1PPS GPS, etc. This patch series introduces basic interface for reading the DPLL state on a SyncE capable device. This state gives us information about the source of the syntonization signal and whether the DPLL circuit is tuned to the incoming signal. Next steps: - add interface to enable recovered clocks and get information about them v2: - removed whitespace changes - fix issues reported by test robot Maciej Machnikowski (2): rtnetlink: Add new RTM_GETSYNCESTATE message to get SyncE status ice: add support for reading SyncE DPLL state drivers/net/ethernet/intel/ice/ice.h | 5 ++ .../net/ethernet/intel/ice/ice_adminq_cmd.h | 34 ++++++++ drivers/net/ethernet/intel/ice/ice_common.c | 62 +++++++++++++++ drivers/net/ethernet/intel/ice/ice_common.h | 4 + drivers/net/ethernet/intel/ice/ice_devids.h | 3 + drivers/net/ethernet/intel/ice/ice_main.c | 55 +++++++++++++ drivers/net/ethernet/intel/ice/ice_ptp.c | 35 +++++++++ drivers/net/ethernet/intel/ice/ice_ptp_hw.c | 44 +++++++++++ drivers/net/ethernet/intel/ice/ice_ptp_hw.h | 22 ++++++ include/linux/netdevice.h | 6 ++ include/uapi/linux/if_link.h | 43 +++++++++++ include/uapi/linux/rtnetlink.h | 11 ++- net/core/rtnetlink.c | 77 +++++++++++++++++++ security/selinux/nlmsgtab.c | 3 +- 14 files changed, 399 insertions(+), 5 deletions(-) -- 2.26.3

4 years, 2 months

5
20
0 0

[PATCH v3 1/2] kunit: drop assumption in kunit-log-test about current suite

by Daniel Latypov

This test assumes that the declared kunit_suite object is the exact one which is being executed, which KUnit will not guarantee [1]. Specifically, `suite->log` is not initialized until a suite object is executed. So if KUnit makes a copy of the suite and runs that instead, this test dereferences an invalid pointer and (hopefully) segfaults. N.B. since we no longer assume this, we can no longer verify that `suite->log` is *not* allocated during normal execution. An alternative to this patch that would allow us to test that would require exposing an API for the current test to get its current suite. Exposing that for one internal kunit test seems like overkill, and grants users more footguns (e.g. reusing a test case in multiple suites and changing behavior based on the suite name, dynamically modifying the setup/cleanup funcs, storing/reading stuff out of the suite->log, etc.). [1] In a subsequent patch, KUnit will allow running subsets of test cases within a suite by making a copy of the suite w/ the filtered test list. But there are other reasons KUnit might execute a copy, e.g. if it ever wants to support parallel execution of different suites, recovering from errors and restarting suites Signed-off-by: Daniel Latypov <dlatypov(a)google.com> --- lib/kunit/kunit-test.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/lib/kunit/kunit-test.c b/lib/kunit/kunit-test.c index d69efcbed624..555601d17f79 100644 --- a/lib/kunit/kunit-test.c +++ b/lib/kunit/kunit-test.c @@ -415,12 +415,15 @@ static struct kunit_suite kunit_log_test_suite = { static void kunit_log_test(struct kunit *test) { - struct kunit_suite *suite = &kunit_log_test_suite; + struct kunit_suite suite; + + suite.log = kunit_kzalloc(test, KUNIT_LOG_SIZE, GFP_KERNEL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, suite.log); kunit_log(KERN_INFO, test, "put this in log."); kunit_log(KERN_INFO, test, "this too."); - kunit_log(KERN_INFO, suite, "add to suite log."); - kunit_log(KERN_INFO, suite, "along with this."); + kunit_log(KERN_INFO, &suite, "add to suite log."); + kunit_log(KERN_INFO, &suite, "along with this."); #ifdef CONFIG_KUNIT_DEBUGFS KUNIT_EXPECT_NOT_ERR_OR_NULL(test, @@ -428,12 +431,11 @@ static void kunit_log_test(struct kunit *test) KUNIT_EXPECT_NOT_ERR_OR_NULL(test, strstr(test->log, "this too.")); KUNIT_EXPECT_NOT_ERR_OR_NULL(test, - strstr(suite->log, "add to suite log.")); + strstr(suite.log, "add to suite log.")); KUNIT_EXPECT_NOT_ERR_OR_NULL(test, - strstr(suite->log, "along with this.")); + strstr(suite.log, "along with this.")); #else KUNIT_EXPECT_PTR_EQ(test, test->log, (char *)NULL); - KUNIT_EXPECT_PTR_EQ(test, suite->log, (char *)NULL); #endif } base-commit: 9c849ce86e0fa93a218614eac562ace44053d7ce -- 2.33.0.259.gc128427fd7-goog

4 years, 2 months

2
3
0 0

[PATCH v3 0/2] kselftests: clean configs

by Li Zhijian

0Day will check if all configs listing under selftests are able to be enabled properly. For the missing configs, it will report something like: LKP WARN miss config CONFIG_SYNC= of sync/config CC: "Rafael J. Wysocki" <rjw(a)rjwysocki.net> CC: Viresh Kumar <viresh.kumar(a)linaro.org> CC: linux-pm(a)vger.kernel.org Reported-by: kernel test robot <lkp(a)intel.com> Li Zhijian (2): selftests/sync: Remove the deprecated config SYNC selftests/cpufreq: Rename DEBUG_PI_LIST to DEBUG_PLIST tools/testing/selftests/cpufreq/config | 2 +- tools/testing/selftests/sync/config | 1 - 2 files changed, 1 insertion(+), 2 deletions(-) -- 2.31.1

4 years, 2 months

3
4
0 0

[REGRESSION] lkft kselftest for next-20210831

by lkft＠linaro.org

## Build * kernel: 5.14.0 * git: https://gitlab.com/Linaro/lkft/mirrors/next/linux-next * git branch: master * git commit: 52c7b727581fe725f8b8a283af21fe0651c73c48 * git describe: next-20210831 * test details: https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20210831 ## Regressions (compared to next-20210830) * dragonboard-410c, kselftest-capabilities - capabilities.test_execve * i386, kselftest-rtc - rtc.rtctest * qemu-arm64-gic-version2, kselftest-timers - timers.rtcpie * qemu-arm64-mte, kselftest-timers - timers.rtcpie * qemu_x86_64, kselftest-rtc - rtc.rtctest * x86, kselftest-cgroup - cgroup.test_freezer - cgroup.test_freezer.test_cgfreezer_ptrace * x86, kselftest-rtc - rtc.rtctest Reported-by: Linux Kernel Functional Testing <lkft(a)linaro.org> ## Fixes (compared to next-20210830) * qemu_arm, kselftest-rtc - rtc.rtctest - rtc.rtctest.rtc.alarm_alm_set_minute * qemu_arm64, kselftest-cgroup - cgroup.test_freezer - cgroup.test_freezer.test_cgfreezer_ptrace ## Test result summary total: 6489, pass: 3757, fail: 565, skip: 2167, xfail: 0 ## Build Summary ## Test suites summary * kselftest-android * kselftest-arm64 * kselftest-arm64/arm64.btitest.bti_c_func * kselftest-arm64/arm64.btitest.bti_j_func * kselftest-arm64/arm64.btitest.bti_jc_func * kselftest-arm64/arm64.btitest.bti_none_func * kselftest-arm64/arm64.btitest.nohint_func * kselftest-arm64/arm64.btitest.paciasp_func * kselftest-arm64/arm64.nobtitest.bti_c_func * kselftest-arm64/arm64.nobtitest.bti_j_func * kselftest-arm64/arm64.nobtitest.bti_jc_func * kselftest-arm64/arm64.nobtitest.bti_none_func * kselftest-arm64/arm64.nobtitest.nohint_func * kselftest-arm64/arm64.nobtitest.paciasp_func * kselftest-bpf * kselftest-breakpoints * kselftest-capabilities * kselftest-cgroup * kselftest-clone3 * kselftest-core * kselftest-cpu-hotplug * kselftest-cpufreq * kselftest-drivers * kselftest-efivarfs * kselftest-filesystems * kselftest-firmware * kselftest-fpu * kselftest-futex * kselftest-gpio * kselftest-intel_pstate * kselftest-ipc * kselftest-ir * kselftest-kcmp * kselftest-kexec * kselftest-kvm * kselftest-lib * kselftest-livepatch * kselftest-lkdtm * kselftest-membarrier * kselftest-memfd * kselftest-memory-hotplug * kselftest-mincore * kselftest-mount * kselftest-mqueue * kselftest-net * kselftest-netfilter * kselftest-nsfs * kselftest-openat2 * kselftest-pid_namespace * kselftest-pidfd * kselftest-proc * kselftest-pstore * kselftest-ptrace * kselftest-rseq * kselftest-rtc * kselftest-seccomp * kselftest-sigaltstack * kselftest-size * kselftest-splice * kselftest-static_keys * kselftest-sync * kselftest-sysctl * kselftest-tc-testing * kselftest-timens * kselftest-timers * kselftest-tmpfs * kselftest-tpm2 * kselftest-user * kselftest-vm * kselftest-x86 * kselftest-zram -- Linaro LKFT https://lkft.linaro.org

4 years, 2 months

1
0
0 0

[PATCH net-next 0/2] Add RTNL interface for SyncE EEC state

by Maciej Machnikowski

Synchronous Ethernet networks use a physical layer clock to syntonize the frequency across different network elements. Basic SyncE node defined in the ITU-T G.8264 consist of an Ethernet Equipment Clock (EEC) and have the ability to recover synchronization from the synchronization inputs - either traffic interfaces or external frequency sources. The EEC can synchronize its frequency (syntonize) to any of those sources. It is also able to select synchronization source through priority tables and synchronization status messaging. It also provides neccessary filtering and holdover capabilities This patch series introduces basic interface for reading the Ethernet Equipment Clock (EEC) state on a SyncE capable device. This state gives information about the source of the syntonization signal and the state of EEC. This interface is required to implement Synchronization Status Messaging on upper layers. Maciej Machnikowski (2): rtnetlink: Add new RTM_GETEECSTATE message to get SyncE status ice: add support for reading SyncE DPLL state drivers/net/ethernet/intel/ice/ice.h | 5 ++ .../net/ethernet/intel/ice/ice_adminq_cmd.h | 34 ++++++++++ drivers/net/ethernet/intel/ice/ice_common.c | 62 ++++++++++++++++++ drivers/net/ethernet/intel/ice/ice_common.h | 4 ++ drivers/net/ethernet/intel/ice/ice_devids.h | 3 + drivers/net/ethernet/intel/ice/ice_main.c | 57 +++++++++++++++++ drivers/net/ethernet/intel/ice/ice_ptp.c | 35 ++++++++++ drivers/net/ethernet/intel/ice/ice_ptp_hw.c | 44 +++++++++++++ drivers/net/ethernet/intel/ice/ice_ptp_hw.h | 22 +++++++ include/linux/netdevice.h | 5 ++ include/uapi/linux/if_link.h | 46 +++++++++++++ include/uapi/linux/rtnetlink.h | 3 + net/core/rtnetlink.c | 64 +++++++++++++++++++ security/selinux/nlmsgtab.c | 3 +- 14 files changed, 386 insertions(+), 1 deletion(-) -- 2.26.3

4 years, 2 months

2
3
0 0

[RFC v3 net-next 0/2] Add RTNL interface for SyncE

by Maciej Machnikowski

Synchronous Ethernet networks use a physical layer clock to syntonize the frequency across different network elements. Basic SyncE node defined in the ITU-T G.8264 consist of an Ethernet Equipment Clock (EEC) and have the ability to recover synchronization from the synchronization inputs - either traffic interfaces or external frequency sources. The EEC can synchronize its frequency (syntonize) to any of those sources. It is also able to select synchronization source through priority tables and synchronization status messaging. It also provides neccessary filtering and holdover capabilities This patch series introduces basic interface for reading the Ethernet Equipment Clock (EEC) state on a SyncE capable device. This state gives information about the source of the syntonization signal and the state of EEC. This interface is required to implement Synchronization Status Messaging on upper layers. Next steps: - add interface to enable source clocks and get information about them v2: - removed whitespace changes - fix issues reported by test robot v3: - Changed naming from SyncE to EEC - Clarify cover letter and commit message for patch 1 Maciej Machnikowski (2): rtnetlink: Add new RTM_GETEECSTATE message to get SyncE status ice: add support for reading SyncE DPLL state drivers/net/ethernet/intel/ice/ice.h | 5 ++ .../net/ethernet/intel/ice/ice_adminq_cmd.h | 34 +++++++++ drivers/net/ethernet/intel/ice/ice_common.c | 62 ++++++++++++++++ drivers/net/ethernet/intel/ice/ice_common.h | 4 + drivers/net/ethernet/intel/ice/ice_devids.h | 3 + drivers/net/ethernet/intel/ice/ice_main.c | 55 ++++++++++++++ drivers/net/ethernet/intel/ice/ice_ptp.c | 35 +++++++++ drivers/net/ethernet/intel/ice/ice_ptp_hw.c | 44 +++++++++++ drivers/net/ethernet/intel/ice/ice_ptp_hw.h | 22 ++++++ include/linux/netdevice.h | 6 ++ include/uapi/linux/if_link.h | 43 +++++++++++ include/uapi/linux/rtnetlink.h | 3 + net/core/rtnetlink.c | 74 +++++++++++++++++++ security/selinux/nlmsgtab.c | 3 +- 14 files changed, 392 insertions(+), 1 deletion(-) -- 2.26.3

4 years, 2 months

4
5
0 0

[PATCH] selftest: gpio: undeclared variable

by cgel.zte＠gmail.com

From: Chi Minghao <chi.minghao(a)zte.com.cn> Add undeclared variable Fixes: shortid ("undeclared variable") Reported-by: Zeal Robot <zealci(a)zte.com.cn> Signed-off-by: Chi Minghao <chi.minghao(a)zte.com.cn> --- .../testing/selftests/gpio/gpio-mockup-cdev.c | 57 +++++++++++++++++++ 1 file changed, 57 insertions(+) diff --git a/tools/testing/selftests/gpio/gpio-mockup-cdev.c b/tools/testing/selftests/gpio/gpio-mockup-cdev.c index e83eac71621a..83a32b8835d3 100644 --- a/tools/testing/selftests/gpio/gpio-mockup-cdev.c +++ b/tools/testing/selftests/gpio/gpio-mockup-cdev.c @@ -15,9 +15,66 @@ #include <unistd.h> #include <sys/ioctl.h> #include <linux/gpio.h> +#include <linux/const.h> +#include <linux/ioctl.h> +#include <linux/types.h> #define CONSUMER "gpio-mockup-cdev" +#define GPIO_V2_LINE_NUM_ATTRS_MAX 10 +#define GPIO_V2_LINES_MAX 64 +#define GPIO_MAX_NAME_SIZE 32 + +#define GPIOHANDLE_REQUEST_BIAS_PULL_UP (1UL << 5) +#define GPIOHANDLE_REQUEST_BIAS_DISABLE (1UL << 7) +#define GPIOHANDLE_REQUEST_BIAS_PULL_DOWN (1UL << 6) +#define GPIO_V2_LINE_GET_VALUES_IOCTL _IOWR(0xB4, 0x0E, struct gpio_v2_line_values) +#define GPIO_V2_GET_LINE_IOCTL _IOWR(0xB4, 0x07, struct gpio_v2_line_request) + +enum gpio_v2_line_flag { + GPIO_V2_LINE_FLAG_ACTIVE_LOW = _BITULL(1), + GPIO_V2_LINE_FLAG_INPUT = _BITULL(2), + GPIO_V2_LINE_FLAG_OUTPUT = _BITULL(3), + GPIO_V2_LINE_FLAG_BIAS_PULL_UP = _BITULL(8), + GPIO_V2_LINE_FLAG_BIAS_PULL_DOWN = _BITULL(9), + GPIO_V2_LINE_FLAG_BIAS_DISABLED = _BITULL(10), +}; +enum gpio_v2_line_attr_id { + GPIO_V2_LINE_ATTR_ID_OUTPUT_VALUES = 2, +}; +struct gpio_v2_line_values { + __aligned_u64 bits; + __aligned_u64 mask; +}; +struct gpio_v2_line_attribute { + __u32 id; + __u32 padding; + union { + __aligned_u64 flags; + __aligned_u64 values; + __u32 debounce_period_us; + }; +}; +struct gpio_v2_line_config_attribute { + struct gpio_v2_line_attribute attr; + __aligned_u64 mask; +}; +struct gpio_v2_line_config { + __aligned_u64 flags; + __u32 num_attrs; + __u32 padding[5]; + struct gpio_v2_line_config_attribute attrs[GPIO_V2_LINE_NUM_ATTRS_MAX]; +}; +struct gpio_v2_line_request { + __u32 offsets[GPIO_V2_LINES_MAX]; + char consumer[GPIO_MAX_NAME_SIZE]; + struct gpio_v2_line_config config; + __u32 num_lines; + __u32 event_buffer_size; + __u32 padding[5]; + __s32 fd; +}; + static int request_line_v2(int cfd, unsigned int offset, uint64_t flags, unsigned int val) { -- 2.25.1

4 years, 2 months

1
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[RFC net-next 0/7] Add basic SyncE interfaces

by Arkadiusz Kubalewski

SyncE - Synchronous Ethernet is defined in ITU-T Rec. G.8264 (https://www.itu.int/rec/T-REC-G.8264) SyncE allows synchronizing the frequency of ethernet PHY clock signal (the frequency used to send the data onto wire), to some reference clock signal. Multiple reference clock sources can be available. PHY ports recover the frequency at which the transmitter sent the data on the RX side. Alternatively, we can use external sources like 1PPS GPS, etc. This patch series introduces basic interfaces for communication with a SyncE capable device. The first part of the interface allows acquiring the synchronization state of DPLL (Digital Phase Locked Loop). DPLL LOCKED state means that the frequency generated by it is locked to the input frequency. As a result, PHYs connected to it are synchronized to the chosen input frequency signal. The second part can be used to select the port from which the clock gets recovered. Each PHY chip can have multiple pins on which the recovered clock can be propagated. For example, a SyncE-capable PHY can recover the carrier frequency of the first port, divide it internally, and output it as a reference clock on PIN 0. When such a signal is enabled, the DPLL can LOCK to the frequency recovered on PIN 0. Next steps: - Add CONFIG_SYNCE definition into Kconfig - Add more configuration interfaces. Aiming at devlink, since this would be device-wide configuration Arkadiusz Kubalewski (7): ptp: Add interface for acquiring DPLL state selftests/ptp: Add usage of PTP_DPLL_GETSTATE ioctl in testptp ice: add get_dpll_state ptp interface usage net: add ioctl interface for recover reference clock on netdev selftests/net: Add test app for SIOC{S|G}SYNCE ice: add SIOC{S|G}SYNCE interface usage to recover reference signal ice: add sysfs interface to configure PHY recovered reference signal .../net/ethernet/intel/ice/ice_adminq_cmd.h | 62 +++++ drivers/net/ethernet/intel/ice/ice_common.c | 101 ++++++++ drivers/net/ethernet/intel/ice/ice_common.h | 9 + drivers/net/ethernet/intel/ice/ice_main.c | 4 + drivers/net/ethernet/intel/ice/ice_ptp.c | 234 +++++++++++++++++- drivers/net/ethernet/intel/ice/ice_ptp.h | 9 + drivers/net/ethernet/intel/ice/ice_ptp_hw.h | 6 + drivers/ptp/ptp_chardev.c | 15 ++ drivers/ptp/ptp_clockmatrix.h | 12 - drivers/ptp/ptp_private.h | 2 + drivers/ptp/ptp_sysfs.c | 48 ++++ include/linux/ptp_clock_kernel.h | 9 + include/uapi/linux/net_synce.h | 21 ++ include/uapi/linux/ptp_clock.h | 27 ++ include/uapi/linux/sockios.h | 4 + net/core/dev_ioctl.c | 6 +- tools/testing/selftests/net/Makefile | 1 + tools/testing/selftests/net/phy_ref_clk.c | 138 +++++++++++ tools/testing/selftests/ptp/testptp.c | 27 +- 19 files changed, 720 insertions(+), 15 deletions(-) create mode 100644 include/uapi/linux/net_synce.h create mode 100644 tools/testing/selftests/net/phy_ref_clk.c base-commit: aba1e4adb54e020d3ca85a4df3ef0f8febe87548 -- 2.24.0

4 years, 2 months

6
27
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[REGRESSION] lkft kselftest for next-20210830

by lkft＠linaro.org

## Build * kernel: 5.14.0 * git: ['https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git', 'https://gitlab.com/Linaro/lkft/mirrors/next/linux-next'] * git branch: master * git commit: 93717cde744f9d26aa1b4561f7d9ba2a230459eb * git describe: next-20210830 * test details: https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20210830 ## Regressions (compared to next-20210827) * dragonboard-410c, kselftest-net - net.udpgso_bench.sh * qemu-arm64-gic-version3, kselftest-cgroup - cgroup.test_freezer - cgroup.test_freezer.test_cgfreezer_ptrace * qemu-arm64-gic-version3, kselftest-timers - timers.rtcpie * qemu_arm, kselftest-rtc - rtc.rtctest.rtc.alarm_alm_set_minute Reported-by: Linux Kernel Functional Testing <lkft(a)linaro.org> ## Fixes (compared to next-20210827) * qemu_arm, kselftest-timers - timers.rtcpie * qemu_i386, kselftest-rtc - rtc.rtctest * qemu_i386, kselftest-seccomp - seccomp.seccomp_benchmark ## Test result summary total: 5374, pass: 3047, fail: 465, skip: 1862, xfail: 0 ## Build Summary ## Test suites summary * kselftest-android * kselftest-arm64 * kselftest-arm64/arm64.btitest.bti_c_func * kselftest-arm64/arm64.btitest.bti_j_func * kselftest-arm64/arm64.btitest.bti_jc_func * kselftest-arm64/arm64.btitest.bti_none_func * kselftest-arm64/arm64.btitest.nohint_func * kselftest-arm64/arm64.btitest.paciasp_func * kselftest-arm64/arm64.nobtitest.bti_c_func * kselftest-arm64/arm64.nobtitest.bti_j_func * kselftest-arm64/arm64.nobtitest.bti_jc_func * kselftest-arm64/arm64.nobtitest.bti_none_func * kselftest-arm64/arm64.nobtitest.nohint_func * kselftest-arm64/arm64.nobtitest.paciasp_func * kselftest-bpf * kselftest-breakpoints * kselftest-capabilities * kselftest-cgroup * kselftest-clone3 * kselftest-core * kselftest-cpu-hotplug * kselftest-cpufreq * kselftest-drivers * kselftest-efivarfs * kselftest-filesystems * kselftest-firmware * kselftest-fpu * kselftest-futex * kselftest-gpio * kselftest-intel_pstate * kselftest-ipc * kselftest-ir * kselftest-kcmp * kselftest-kexec * kselftest-kvm * kselftest-lib * kselftest-livepatch * kselftest-lkdtm * kselftest-membarrier * kselftest-memfd * kselftest-memory-hotplug * kselftest-mincore * kselftest-mount * kselftest-mqueue * kselftest-net * kselftest-netfilter * kselftest-nsfs * kselftest-openat2 * kselftest-pid_namespace * kselftest-pidfd * kselftest-proc * kselftest-pstore * kselftest-ptrace * kselftest-rseq * kselftest-rtc * kselftest-seccomp * kselftest-sigaltstack * kselftest-size * kselftest-splice * kselftest-static_keys * kselftest-sync * kselftest-sysctl * kselftest-tc-testing * kselftest-timens * kselftest-timers * kselftest-tmpfs * kselftest-tpm2 * kselftest-user * kselftest-vm * kselftest-x86 * kselftest-zram -- Linaro LKFT https://lkft.linaro.org

4 years, 2 months

1
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[PATCH 0/2] selftests: tool: update format of kselftest TAP results to improve compatibility with KTAP

by Rae Moar

This series of patches updates the format of kselftest TAP results to improve compatibility with the proposed KTAP specification (https://lore.kernel.org/linux-kselftest/CA+GJov6tdjvY9x12JsJT14qn6c7NViJxqa…). Three changes: - Change from "# " to " " for indentation of nested tests - Add subtest header line at start of tests with subtests. Line format is "# Subtest: [name of test]". - Remove TAP header in nested tests Standardizing TAP results would not only allow for clearer documentation and ease of reading but by standardizing the format across different testing frameworks, we could also share the use of tools. As an example: This is a truncated version of TAP results from the kselftest ptrace with the new format changes: TAP version 13 1..1 # selftests: ptrace: get_syscall_info # Subtest: selftests: ptrace: get_syscall_info 1..1 # Starting 1 tests from 1 test cases. # RUN global.get_syscall_info ... # OK global.get_syscall_info ok 1 global.get_syscall_info # PASSED: 1 / 1 tests passed. # Totals: pass:1 fail:0 xfail:0 xpass:0 skip:0 error:0 ok 1 selftests: ptrace: get_syscall_info With the new patch to update the KUnit parser to improve compatibility with the proposed KTAP specification, (https://lore.kernel.org/linux-kselftest/20210826195505.3066755-1-rmoar@goog…) the above TAP results would be parsed as the following: [20:46:09] ============================================================ [20:46:09] ===== selftests: ptrace: get_syscall_info (1 subtest) ====== [20:46:09] [PASSED] global.get_syscall_info [20:46:09] ======= [PASSED] selftests: ptrace: get_syscall_info ======= [20:46:09] ============================================================ [20:46:09] Testing complete. Passed: 1, Failed: 0, Crashed: 0, Skipped: 0, Errors: 0 Thus, the kunit parser could become a useful tool for kselftest users. Rae Moar (2): selftests: tool: Add subtest header line and change indentation format in TAP results Revert "selftests: Remove KSFT_TAP_LEVEL" tools/testing/selftests/Makefile | 6 ++++++ tools/testing/selftests/kselftest/prefix.pl | 2 +- tools/testing/selftests/kselftest/runner.sh | 7 ++++--- 3 files changed, 11 insertions(+), 4 deletions(-) -- 2.33.0.259.gc128427fd7-goog

4 years, 2 months

2
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Re: [PATCH v2] kunit: tool: improve compatibility of kunit_parser with KTAP specification

by Rae Moar

On Mon, Aug 30, 2021 at 4:08 PM <Tim.Bird(a)sony.com> wrote: > > > > > -----Original Message----- > > From: Rae Moar <rmoar(a)google.com> > > > > On Thu, Aug 26, 2021 at 7:49 PM Daniel Latypov <dlatypov(a)google.com> wrote: > > > > > > On Thu, Aug 26, 2021 at 12:55 PM 'Rae Moar' via KUnit Development > > > <kunit-dev(a)googlegroups.com> wrote: > > > > > > > > Update to kunit_parser to improve compatibility with KTAP > > > > specification including arbitrarily nested tests. Patch accomplishes > > > > three major changes: > > > > > > > > - Use a general Test object to represent all tests rather than TestCase > > > > and TestSuite objects. This allows for easier implementation of arbitrary > > > > levels of nested tests and promotes the idea that both test suites and test > > > > cases are tests. > > > > > > > > - Print errors incrementally rather than all at once after the > > > > parsing finishes to maximize information given to the user in the > > > > case of the parser given invalid input and to increase the helpfulness > > > > of the timestamps given during printing. Note that kunit.py parse does > > > > not print incrementally yet. However, this fix brings us closer to > > > > this feature. > > > > > > > > - Increase compatibility for different formats of input. Arbitrary levels > > > > of nested tests supported. Also, test cases and test suites are now > > > > supported to be present on the same level of testing. > > > > > > > > This patch now implements the KTAP specification as described here: > > > > https://lore.kernel.org/linux-kselftest/CA+GJov6tdjvY9x12JsJT14qn6c7NViJxqa…. > > > > > > > > This patch adjusts the kunit_tool_test.py file to check for > > > > the correct outputs from the new parser and adds a new test to check > > > > the parsing for a KTAP result log with correct format for multiple nested > > > > subtests (test_is_test_passed-all_passed_nested.log). > > > > > > > > This patch also alters the kunit_json.py file to allow for arbitrarily > > > > nested tests. > > > > > > > > Signed-off-by: Rae Moar <rmoar(a)google.com> > > > > Reviewed-by: Brendan Higgins <brendanhiggins(a)google.com> > > > > > > Acked-by: Daniel Latypov <dlatypov(a)google.com> > > > > > > Looks good to me, some more bikeshedding about comments below. > > > pytype does find a minor error (which was actually my fault since I'd > > > suggested you annotate `build_dir: str` off-list). > > > Also, this patch accidentally adds kunit_parser.raw_output() back in. > > > > > > > Thanks for pointing out the pytype error! I will change the annotation in > > v3. I will also remove kunit_parser.raw_output() in v3. > > > > > > > > > > --- > > > > > > > > Change log from v1: > > > > https://lore.kernel.org/linux-kselftest/20210820200032.2178134-1-rmoar@goog… > > > > - Rebase onto kselftest/kunit branch > > > > - Add tests to kunit_tool_test.py to check parser is correctly stripping > > > > hyphen, producing correct json objects with nested tests, correctly > > > > passing kselftest TAP output, and correctly deals with missing test plan. > > > > - Fix bug to correctly match test name in instance of a missing test plan. > > > > - Fix bug in kunit_tool_test.py pointed out by Daniel where it was not > > > > correctly checking for a proper match to the '0 tests run!' error > > > > message. Reverts changes back to original. > > > > - A few minor changes to commit message using Daniel's comments. > > > > - Change docstrings using Daniel's comments to reduce: > > > > - Shortens some docstrings to be one-line or just description if it is > > > > self explanatory. > > > > - Remove explicit respecification of types of parameters and returns > > > > this is already specified in the function annoations. However, > > > > some descriptions of the parameters and returns remain and some contain > > > > the type for context. Additionally, the types of public attributes of > > > > classes remain. > > > > - Remove any documentation of 'Return: None' > > > > - Remove docstrings of helper methods within other methods. > > > > --- > > > > tools/testing/kunit/kunit_json.py | 55 +- > > > > tools/testing/kunit/kunit_parser.py | 1056 ++++++++++++----- > > > > tools/testing/kunit/kunit_tool_test.py | 134 ++- > > > > .../test_is_test_passed-all_passed_nested.log | 34 + > > > > .../test_is_test_passed-kselftest.log | 14 + > > > > .../test_is_test_passed-missing_plan.log | 31 + > > > > .../kunit/test_data/test_strip_hyphen.log | 16 + > > > > 7 files changed, 951 insertions(+), 389 deletions(-) > > > > create mode 100644 tools/testing/kunit/test_data/test_is_test_passed-all_passed_nested.log > > > > create mode 100644 tools/testing/kunit/test_data/test_is_test_passed-kselftest.log > > > > create mode 100644 tools/testing/kunit/test_data/test_is_test_passed-missing_plan.log > > > > create mode 100644 tools/testing/kunit/test_data/test_strip_hyphen.log > > > > > > > > diff --git a/tools/testing/kunit/kunit_json.py b/tools/testing/kunit/kunit_json.py > > > > index f5cca5c38cac..e7317b4fad9d 100644 > > > > --- a/tools/testing/kunit/kunit_json.py > > > > +++ b/tools/testing/kunit/kunit_json.py > > > > @@ -11,47 +11,46 @@ import os > > > > > > > > import kunit_parser > > > > > > > > -from kunit_parser import TestStatus > > > > - > > > > -def get_json_result(test_result, def_config, build_dir, json_path) -> str: > > > > - sub_groups = [] > > > > - > > > > - # Each test suite is mapped to a KernelCI sub_group > > > > - for test_suite in test_result.suites: > > > > - sub_group = { > > > > - "name": test_suite.name, > > > > - "arch": "UM", > > > > - "defconfig": def_config, > > > > - "build_environment": build_dir, > > > > - "test_cases": [], > > > > - "lab_name": None, > > > > - "kernel": None, > > > > - "job": None, > > > > - "git_branch": "kselftest", > > > > - } > > > > - test_cases = [] > > > > - # TODO: Add attachments attribute in test_case with detailed > > > > - # failure message, see https://api.kernelci.org/schema-test-case.html#get > > > > - for case in test_suite.cases: > > > > - test_case = {"name": case.name, "status": "FAIL"} > > > > - if case.status == TestStatus.SUCCESS: > > > > +from kunit_parser import Test, TestResult, TestStatus > > > > +from typing import Any, Dict > > > > + > > > > +JsonObj = Dict[str, Any] > > > > + > > > > +def _get_group_json(test: Test, def_config: str, build_dir: str) -> JsonObj: > > > > > > > > > Ah, pytype complains about this. > > > Looks like the unit test passes None here. > > > > > > We can either make this annotation say `build_dir: Optional[str]` or > > > change the unit test to pass '' instead of None. > > > The former might be preferable to keep this change more focused. > > > > > > > Thanks for finding this! I also like 'build_dir: Optional[str]' to keep the > > changes limited to the files already being updated. > > > > > > > > > + sub_groups = [] # List[JsonObj] > > > > + test_cases = [] # List[JsonObj] > > > > + > > > > + for subtest in test.subtests: > > > > + if len(subtest.subtests): > > > > + sub_group = _get_group_json(subtest, def_config, > > > > + build_dir) > > > > + sub_groups.append(sub_group) > > > > + else: > > > > + test_case = {"name": subtest.name, "status": "FAIL"} > > > > + if subtest.status == TestStatus.SUCCESS: > > > > test_case["status"] = "PASS" > > > > - elif case.status == TestStatus.TEST_CRASHED: > > > > + elif subtest.status == TestStatus.TEST_CRASHED: > > > > test_case["status"] = "ERROR" > > > > test_cases.append(test_case) > > > > - sub_group["test_cases"] = test_cases > > > > - sub_groups.append(sub_group) > > > > + > > > > test_group = { > > > > - "name": "KUnit Test Group", > > > > + "name": test.name, > > > > "arch": "UM", > > > > "defconfig": def_config, > > > > "build_environment": build_dir, > > > > "sub_groups": sub_groups, > > > > + "test_cases": test_cases, > > > > "lab_name": None, > > > > "kernel": None, > > > > "job": None, > > > > "git_branch": "kselftest", > > > > } > > > > + return test_group > > > > + > > > > +def get_json_result(test_result: TestResult, def_config: str, build_dir: str, > > > > + json_path: str) -> str: > > > > + test_group = _get_group_json(test_result.test, def_config, build_dir) > > > > + test_group["name"] = "KUnit Test Group" > > > > json_obj = json.dumps(test_group, indent=4) > > > > if json_path != 'stdout': > > > > with open(json_path, 'w') as result_path: > > > > diff --git a/tools/testing/kunit/kunit_parser.py b/tools/testing/kunit/kunit_parser.py > > > > index 6310a641b151..4b6086159c7f 100644 > > > > --- a/tools/testing/kunit/kunit_parser.py > > > > +++ b/tools/testing/kunit/kunit_parser.py > > > > @@ -1,11 +1,15 @@ > > > > # SPDX-License-Identifier: GPL-2.0 > > > > # > > > > -# Parses test results from a kernel dmesg log. > > > > +# Parses KTAP test results from a kernel dmesg log and incrementally prints > > > > +# results with reader-friendly format. Stores and returns test results in a > > > > +# Test object. > > > > # > > > > # Copyright (C) 2019, Google LLC. > > > > # Author: Felix Guo <felixguoxiuping(a)gmail.com> > > > > # Author: Brendan Higgins <brendanhiggins(a)google.com> > > > > +# Author: Rae Moar <rmoar(a)google.com> > > > > > > > > +from __future__ import annotations > > > > import re > > > > > > > > from collections import namedtuple > > > > @@ -14,33 +18,55 @@ from enum import Enum, auto > > > > from functools import reduce > > > > from typing import Iterable, Iterator, List, Optional, Tuple > > > > > > > > -TestResult = namedtuple('TestResult', ['status','suites','log']) > > > > - > > > > -class TestSuite(object): > > > > - def __init__(self) -> None: > > > > - self.status = TestStatus.SUCCESS > > > > - self.name = '' > > > > - self.cases = [] # type: List[TestCase] > > > > - > > > > - def __str__(self) -> str: > > > > - return 'TestSuite(' + str(self.status) + ',' + self.name + ',' + str(self.cases) + ')' > > > > - > > > > - def __repr__(self) -> str: > > > > - return str(self) > > > > - > > > > -class TestCase(object): > > > > +TestResult = namedtuple('TestResult', ['status','test','log']) > > > > + > > > > +class Test(object): > > > > + """ > > > > + A class to represent a test parsed from KTAP results. All KTAP > > > > + results within a test log are stored in a main Test object as > > > > + subtests. > > > > + > > > > + Attributes: > > > > + status : TestStatus - status of the test > > > > + name : str - name of the test > > > > + expected_count : int - expected number of subtests (0 if single > > > > + test case and None if unknown expected number of subtests) > > > > + subtests : List[Test] - list of subtests > > > > + log : List[str] - log of KTAP lines that correspond to the test > > > > + counts : TestCounts - counts of the test statuses and errors of > > > > + subtests or of the test itself if the test is a single > > > > + test case. > > > > + """ > > > > def __init__(self) -> None: > > > > + """Constructs the default attributes of a Test class object. > > > > + """ > > > > > > Optional: I think we can still drop documents like this on __init__() > > > and __str__() since these are well-known functions. > > > __init__() could have a comment if it did anything non-obvious, but > > > that's not the case here. > > > > > > > I would prefer to keep docstrings for all public methods in classes, > > including __init__() and __str__(). This best follows the docstring > > conventions (https://www.python.org/dev/peps/pep-0257/#specification). > > I have attempted to make the docstrings for simple methods quite simplistic. > > I may even change this docstring to be: 'Creates Test object with default > > attributes' in order to not refer to the low-level details of constructing the > > attributes. > > > > > > self.status = TestStatus.SUCCESS > > > > self.name = '' > > > > + self.expected_count = 0 # type: Optional[int] > > > > + self.subtests = [] # type: List[Test] > > > > self.log = [] # type: List[str] > > > > + self.counts = TestCounts() > > > > > > > > def __str__(self) -> str: > > > > - return 'TestCase(' + str(self.status) + ',' + self.name + ',' + str(self.log) + ')' > > > > + """Returns string representation of a Test class object.""" > > > > + return ('Test(' + str(self.status) + ', ' + self.name + > > > > + ', ' + str(self.expected_count) + ', ' + > > > > + str(self.subtests) + ', ' + str(self.log) + ', ' + > > > > + str(self.counts) + ')') > > > > > > > > def __repr__(self) -> str: > > > > + """Returns string representation of a Test class object.""" > > > > return str(self) > > > > > > > > + def add_error(self, error_message: str) -> None: > > > > + """Adds error to test object by incrementing the error count > > > > + and printing the error message. > > > > + """ > > > > > > nit: this comment explains the low-level details of what the function > > > does, which isn't as necessary. > > > > > > We'd want to document more what the intent of the function is, e.g. perhaps: > > > Records an error that occured while parsing this test. > > > > > > In the future, we might want to change how errors are printed, hence > > > why I don't want to include that in a comment, per se. > > > > > > E.g. I've seen a case where a user was getting truncated TAP output, > > > but it was hard to tell. > > > The error message was logged at the top but got lost after the parser > > > went on to print out all the test results. > > > > > > The parser will behave the same way after this patch. > > > So we might eventually want to have a follow-up that includes a > > > summary of all the encountered errors at the end, for example. > > > > I like this change. I will update the docstring to be: > > 'Records an error that occurred while parsing this test' in v3. > > > > > > > > > + self.counts.errors += 1 > > > > + print_error('Test ' + self.name + ': ' + error_message) > > > > + > > > > class TestStatus(Enum): > > > > + """An enumeration class to represent the status of a test.""" > > > > SUCCESS = auto() > > > > FAILURE = auto() > > > > SKIPPED = auto() > > > > @@ -48,381 +74,769 @@ class TestStatus(Enum): > > > > NO_TESTS = auto() > > > > FAILURE_TO_PARSE_TESTS = auto() > > > > > > > > +class TestCounts: > > > > + """ > > > > + A class to represent the counts of statuses and test errors of > > > > + subtests or of the test itself if the test is a single test case with > > > > + no subtests. Note that the sum of the counts of passed, failed, > > > > + crashed, and skipped should sum to the total number of subtests for > > > > + the test. > > > > > > optional: can tersen this a bit. e.g. I don't think we need to > > > reiterate that this is a class, for example :) > > > I'd personally write it a bit more like > > > > > > Tracks the number of tests that had each status. > > > This includes the test itself and all its subtests. > > > > > > > I agree this can be shortened. I will definitely be removing the > > second sentence. > > That can be described in the total() method. I will likely change the > > docstring to be: > > 'Tracks the counts of statuses of all test cases and any errors within a Test.' > > > > This correctly describes that the TestCounts object only tracks the > > statuses of test > > cases with no subtests. So if the test itself had subtests, it's > > status would not be > > counted. However, this does use the phrase 'test case', which we were attempting > > to move away from. What do you think of this change? > > > > > > + > > > > + Attributes: > > > > + passed : int - the number of tests that have passed > > > > + failed : int - the number of tests that have failed > > > > + crashed : int - the number of tests that have crashed > > > > + skipped : int - the number of tests that have skipped > > > > + errors : int - the number of errors in the test and subtests > > > > + """ > > > > + def __init__(self): > > > > + """Contructs the default attributes of a TestCounts class > > > > + object. Sets the counts of all test statuses and test > > > > + errors to be 0. > > > > + """ > > > > + self.passed = 0 > > > > + self.failed = 0 > > > > + self.crashed = 0 > > > > + self.skipped = 0 > > > > + self.errors = 0 > > > > + > > > > + def __str__(self) -> str: > > > > + """Returns the string representation of a TestCounts object. > > > > + """ > > > > > > Echoing the comment above, I think comments can be dropped for > > > functions like __str__. > > > > See comment above on docstrings. > > > > > > > > > + return ('Passed: ' + str(self.passed) + > > > > + ', Failed: ' + str(self.failed) + > > > > + ', Crashed: ' + str(self.crashed) + > > > > + ', Skipped: ' + str(self.skipped) + > > > > + ', Errors: ' + str(self.errors)) > > > > + > > > > + def total(self) -> int: > > > > + """Returns total number of subtests or 1 if the test object > > > > + has no subtests to represent the test itself. This number is > > > > + calculated by the sum of the passed, failed, crashed, and > > > > + skipped subtests. > > > > > > I think the first sentence would be sufficient here, e.g. > > > Returns the number of subtests, or 1 if the test had none. > > > > I will either just use the first sentence. Or I will change this to be: > > 'Returns the total number of test cases within a test object.' > > I think this more clearly depicts what this method returns. > > I may add: 'where a test case is a test with no subtests.' See > > above comment on class docstring. Again > > is this an issue to be using the term test case? > > > > > > > > > + """ > > > > + return (self.passed + self.failed + self.crashed + > > > > + self.skipped) > > > > + > > > > + def add_subtest_counts(self, counts: TestCounts) -> None: > > > > + """ > > > > + Adds the counts of another TestCounts object to the current > > > > + TestCounts object. Used to add the counts of a subtest to the > > > > + parent test. > > > > + > > > > + Parameters: > > > > + counts - a different TestCounts object whose counts > > > > + will be added to the counts of the TestCounts object > > > > + """ > > > > + self.passed += counts.passed > > > > + self.failed += counts.failed > > > > + self.crashed += counts.crashed > > > > + self.skipped += counts.skipped > > > > + self.errors += counts.errors > > > > + > > > > + def get_status(self) -> TestStatus: > > > > + """Returns the expected status of a Test using test counts.""" > > > > > > nit: would "aggregated status" be a bit more accurate than "expected status" ? > > > > > > > I like the change to "aggregated status". I will change this is v3 :) > > > > > > + if self.crashed: > > > > + # If one of the subtests crash, the expected status > > > > + # of the Test is crashed. > > > > + return TestStatus.TEST_CRASHED > > > > + elif self.failed: > > > > + # Otherwise if one of the subtests fail, the > > > > + # expected status of the Test is failed. > > > > + return TestStatus.FAILURE > > > > + elif self.passed: > > > > + # Otherwise if one of the subtests pass, the > > > > + # expected status of the Test is passed. > > > > + return TestStatus.SUCCESS > > > > + else: > > > > + # Finally, if none of the subtests have failed, > > > > + # crashed, or passed, the expected status of the > > > > + # Test is skipped. > > > > + return TestStatus.SKIPPED > > > > + > > > > + def add_status(self, status: TestStatus) -> None: > > > > + """ > > > > + Given inputted status, increments corresponding attribute of > > > > + TestCounts object. > > > > + > > > > + Parameters: > > > > + status - status to be added to the TestCounts object > > > > + """ > > > > + if status == TestStatus.SUCCESS or \ > > > > + status == TestStatus.NO_TESTS: > > > > + # if status is NO_TESTS the most appropriate > > > > + # attribute to increment is passed because > > > > + # the test did not fail, crash or get skipped. > > > > + self.passed += 1 > > > > + elif status == TestStatus.FAILURE: > > > > + self.failed += 1 > > > > + elif status == TestStatus.SKIPPED: > > > > + self.skipped += 1 > > > > + else: > > > > + self.crashed += 1 > > > > + > > > > class LineStream: > > > > - """Provides a peek()/pop() interface over an iterator of (line#, text).""" > > > > + """ > > > > + A class to represent the lines of kernel output. > > > > + Provides a peek()/pop() interface over an iterator of > > > > + (line#, text). > > > > + """ > > > > _lines: Iterator[Tuple[int, str]] > > > > _next: Tuple[int, str] > > > > _done: bool > > > > > > > > def __init__(self, lines: Iterator[Tuple[int, str]]): > > > > + """Set defaults for LineStream object and sets _lines > > > > + attribute to lines parameter. > > > > > > nit: this "initializes" more than "set[s] defaults". > > > Perhaps: > > > Creates a new LineStream that wraps the given iterator. > > > > > > > Thanks for this suggestion! I will definitely change this in v3. > > I prefer this description much more. > > > > > > > > > + """ > > > > self._lines = lines > > > > self._done = False > > > > self._next = (0, '') > > > > self._get_next() > > > > > > > > def _get_next(self) -> None: > > > > + """Advances the LineSteam to the next line or sets the _done > > > > + attribute if the LineStream has reached the end of the lines. > > > > + """ > > > > try: > > > > self._next = next(self._lines) > > > > except StopIteration: > > > > self._done = True > > > > > > > > def peek(self) -> str: > > > > + """Returns the next line in the LineStream without advancing > > > > + the LineStream. > > > > > > Looks good to me, thanks! > > > > > > But perhaps saying "the current line" would be more clear? > > > > > > I.e. > > > peek() > > > Returns the current line, without advancing the LineStream. > > > > > > pop() > > > Returns the current line and advances the LineStream to the next line. > > > > > > line_number() > > > Returns the line number of the current line. > > > > > > > I like all of these changes. Will change in v3. > > > > > > + """ > > > > return self._next[1] > > > > > > > > def pop(self) -> str: > > > > + """Returns the next line in the LineStream and advances the > > > > + LineStream to the next line. > > > > + """ > > > > n = self._next > > > > self._get_next() > > > > return n[1] > > > > > > > > def __bool__(self) -> bool: > > > > + """Returns whether the LineStream has reached the end of the > > > > + lines. > > > > + """ > > > > > > Perhaps this (a bit shorter): > > > Checks whether there's any more lines in the stream. > > > > I do think this could be shorter. However, I think 'checks' is a bit inexact. > > I prefer 'Returns if stream has any more lines' or > > 'Returns if stream is at end of lines.' > > These have opposite meanings. Does True mean there are moremy m > lines, or there are no more lines? You should pick the wording > that makes sense according to the value. I would recommend > to include the word "True" in the description. As in: > "Returns True if stream has more lines". > My mistake. Thanks for catching this! I like 'Returns True if stream has more lines.' > > > > > > > > > return not self._done > > > > > > > > # Only used by kunit_tool_test.py. > > > > def __iter__(self) -> Iterator[str]: > > > > + """Empties all lines stored in LineStream object into > > > > + Iterator object and returns the Iterator object. > > > > + """ > > > > > > Nit: it doesn't really return an iterator object. > > > Given this is another __ function, I think we can leave off the comment. > > > > > > The behavior is about what one would expect for __iter__(). > > > > > > > I think it is best to keep the simplistic docstrings for all public methods > > (see comment above). However, I thought this function did return an Iterator. > > I may be mistaken but since this method uses the yield keyword, this > > function would return a generator, which is a type of iterator. Since I > > would like to keep the docstring, could you explain further? > > > > > > while bool(self): > > > > yield self.pop() > > > > > > > > def line_number(self) -> int: > > > > + """Returns the line number of the next line in the > > > > + LineStream. > > > > + """ > > > > return self._next[0] > > > > > > > > -kunit_start_re = re.compile(r'TAP version [0-9]+$') > > > > -kunit_end_re = re.compile('(List of all partitions:|' > > > > - 'Kernel panic - not syncing: VFS:|reboot: System halted)') > > > > +# Parsing helper methods: > > > > + > > > > +KTAP_START = re.compile(r'KTAP version ([0-9]+)$') > > > > +TAP_START = re.compile(r'TAP version ([0-9]+)$') > > > > +KTAP_END = re.compile('(List of all partitions:|' > > > > + 'Kernel panic - not syncing: VFS:|reboot: System halted)') > > > > > > > > def extract_tap_lines(kernel_output: Iterable[str]) -> LineStream: > > > > - def isolate_kunit_output(kernel_output: Iterable[str]) -> Iterator[Tuple[int, str]]: > > > > + """Extracts KTAP lines from inputted kernel output in LineStream > > > > + object.""" > > > > + def isolate_ktap_output(kernel_output: Iterable[str]) \ > > > > + -> Iterator[Tuple[int, str]]: > > > > line_num = 0 > > > > started = False > > > > for line in kernel_output: > > > > line_num += 1 > > > > - line = line.rstrip() # line always has a trailing \n > > > > - if kunit_start_re.search(line): > > > > + line = line.rstrip() # remove trailing \n > > > > + if not started and KTAP_START.search(line): > > > > + # start extracting KTAP lines and set prefix > > > > + # to number of characters before version line > > > > + prefix_len = len( > > > > + line.split('KTAP version')[0]) > > > > + started = True > > > > + yield line_num, line[prefix_len:] > > > > + elif not started and TAP_START.search(line): > > > > + # start extracting KTAP lines and set prefix > > > > + # to number of characters before version line > > > > prefix_len = len(line.split('TAP version')[0]) > > > > started = True > > > > yield line_num, line[prefix_len:] > > > > - elif kunit_end_re.search(line): > > > > + elif started and KTAP_END.search(line): > > > > + # stop extracting KTAP lines > > > > break > > > > elif started: > > > > - yield line_num, line[prefix_len:] > > > > - return LineStream(lines=isolate_kunit_output(kernel_output)) > > > > - > > > > -DIVIDER = '=' * 60 > > > > - > > > > -RESET = '\033[0;0m' > > > > - > > > > -def red(text) -> str: > > > > - return '\033[1;31m' + text + RESET> - > > > > -def yellow(text) -> str: > > > > - return '\033[1;33m' + text + RESET > > > > - > > > > -def green(text) -> str: > > > > - return '\033[1;32m' + text + RESET > > > > - > > > > -def print_with_timestamp(message) -> None: > > > > - print('[%s] %s' % (datetime.now().strftime('%H:%M:%S'), message)) > > > > - > > > > -def format_suite_divider(message) -> str: > > > > - return '======== ' + message + ' ========' > > > > - > > > > -def print_suite_divider(message) -> None: > > > > - print_with_timestamp(DIVIDER) > > > > - print_with_timestamp(format_suite_divider(message)) > > > > - > > > > -def print_log(log) -> None: > > > > - for m in log: > > > > - print_with_timestamp(m) > > > > - > > > > -TAP_ENTRIES = re.compile(r'^(TAP|[\s]*ok|[\s]*not ok|[\s]*[0-9]+\.\.[0-9]+|[\s]*# (Subtest:|.*: kunit test case crashed!)).*$') > > > > - > > > > -def consume_non_diagnostic(lines: LineStream) -> None: > > > > - while lines and not TAP_ENTRIES.match(lines.peek()): > > > > - lines.pop() > > > > - > > > > -def save_non_diagnostic(lines: LineStream, test_case: TestCase) -> None: > > > > - while lines and not TAP_ENTRIES.match(lines.peek()): > > > > - test_case.log.append(lines.peek()) > > > > - lines.pop() > > > > - > > > > -OkNotOkResult = namedtuple('OkNotOkResult', ['is_ok','description', 'text']) > > > > - > > > > -OK_NOT_OK_SKIP = re.compile(r'^[\s]*(ok|not ok) [0-9]+ - (.*) # SKIP(.*)$') > > > > - > > > > -OK_NOT_OK_SUBTEST = re.compile(r'^[\s]+(ok|not ok) [0-9]+ - (.*)$') > > > > - > > > > -OK_NOT_OK_MODULE = re.compile(r'^(ok|not ok) ([0-9]+) - (.*)$') > > > > - > > > > -def parse_ok_not_ok_test_case(lines: LineStream, test_case: TestCase) -> bool: > > > > - save_non_diagnostic(lines, test_case) > > > > - if not lines: > > > > - test_case.status = TestStatus.TEST_CRASHED > > > > - return True > > > > - line = lines.peek() > > > > - match = OK_NOT_OK_SUBTEST.match(line) > > > > - while not match and lines: > > > > - line = lines.pop() > > > > - match = OK_NOT_OK_SUBTEST.match(line) > > > > - if match: > > > > - test_case.log.append(lines.pop()) > > > > - test_case.name = match.group(2) > > > > - skip_match = OK_NOT_OK_SKIP.match(line) > > > > - if skip_match: > > > > - test_case.status = TestStatus.SKIPPED > > > > - return True > > > > - if test_case.status == TestStatus.TEST_CRASHED: > > > > - return True > > > > - if match.group(1) == 'ok': > > > > - test_case.status = TestStatus.SUCCESS > > > > - else: > > > > - test_case.status = TestStatus.FAILURE > > > > - return True > > > > + # remove prefix and any indention and yield > > > > + # line with line number > > > > + line = line[prefix_len:].lstrip() > > > > + yield line_num, line > > > > + return LineStream(lines=isolate_ktap_output(kernel_output)) > > > > + > > > > +def raw_output(kernel_output: Iterable[str]) -> None: > > > > + """Prints all lines of kernel output.""" > > > > + for line in kernel_output: > > > > + print(line.rstrip()) > > > > > > This accidentally adds back in the raw_output() function. > > > We'll want to drop it, since it's no longer used by kunit.py. > > > > > > > Great catch! Will remove this for v3. Didn't realize this was > > supposed to be removed. > > > > > > + > > > > +KTAP_VERSIONS = [1] > > > > +TAP_VERSIONS = [13, 14] > > > > + > > > > +def check_version(version_num: int, accepted_versions: List[int], > > > > + version_type: str, test: Test) -> None: > > > > > > Optional: we can make it clearer that this is an internal function by > > > prefixing with a _ > > > E.g. def _check_version > > > > > > Same can go for all the other helpers here. > > > pytype should be able to catch any missed names, so it should be low risk. > > > > > > But it's also fairly low reward, since we don't really have any other > > > users, so the need to clamp down on what's "visible" to other packages > > > is small. > > > > > > > I might leave off the _ prefix because it would require almost all of the > > methods to be prefixed. However, this is reasonable so if others think > > this is necessary, I am happy to change all of the methods. > > > > > > + """ > > > > + Adds error to test object if version number is too high or too > > > > + low. > > > > + > > > > + Parameters: > > > > + version_num - The inputted version number from the parsed KTAP or TAP > > > > + header line > > > > + accepted_version - List of accepted KTAP or TAP versions > > > > + version_type - 'KTAP' or 'TAP' depending on the type of > > > > + version line. > > > > + test - Test object for current test being parsed > > > > + """ > > > > + if version_num < min(accepted_versions): > > > > + test.add_error(version_type + > > > > + ' version lower than expected!') > > > > + elif version_num > max(accepted_versions): > > > > + test.add_error( > > > > + version_type + ' version higher than expected!') > > > > + > > > > +def parse_ktap_header(lines: LineStream, test: Test) -> bool: > > > > + """ > > > > + If the next line in LineStream matches the format of KTAP or TAP > > > > + header line, the version number is checked, the line is popped, > > > > + and returns True. Otherwise the method returns False. > > > > + > > > > + Accepted formats: > > > > + - 'KTAP version [version number]' > > > > + - 'TAP version [version number]' > > > > + > > > > + Parameters: > > > > + lines - LineStream of KTAP output to parse > > > > + test - Test object for current test being parsed > > > > + > > > > + Return: > > > > + Boolean that represents if the next line in the LineStream was parsed > > > > + as the KTAP or TAP header line > > > > > > I think we can simplify these "Boolean that represents" with > > > > > > Return: > > > True if we parsed a KTAP or header line > > > > > > > I like this change a lot. I was struggling to get the right wording > > with the methods > > that returned booleans. I will change this for v3. > > > > > > + """ > > > > + ktap_match = KTAP_START.match(lines.peek()) > > > > + tap_match = TAP_START.match(lines.peek()) > > > > + if ktap_match: > > > > + version_num = int(ktap_match.group(1)) > > > > + check_version(version_num, KTAP_VERSIONS, 'KTAP', test) > > > > + elif tap_match: > > > > + version_num = int(tap_match.group(1)) > > > > + check_version(version_num, TAP_VERSIONS, 'TAP', test) > > > > else: > > > > return False > > > > - > > > > -SUBTEST_DIAGNOSTIC = re.compile(r'^[\s]+# (.*)$') > > > > -DIAGNOSTIC_CRASH_MESSAGE = re.compile(r'^[\s]+# .*?: kunit test case crashed!$') > > > > - > > > > -def parse_diagnostic(lines: LineStream, test_case: TestCase) -> bool: > > > > - save_non_diagnostic(lines, test_case) > > > > - if not lines: > > > > + test.log.append(lines.pop()) > > > > + return True > > > > + > > > > +TEST_HEADER = re.compile(r'^# Subtest: (.*)$') > > > > + > > > > +def parse_test_header(lines: LineStream, test: Test) -> bool: > > > > + """ > > > > + If the next line in LineStream matches the format of a test > > > > + header line, the name of test is set, the line is popped, > > > > + and returns True. Otherwise the method returns False. > > > > + > > > > + Accepted format: > > > > + - '# Subtest: [test name]' > > > > + > > > > + Parameters: > > > > + lines - LineStream of ktap output to parse > > > > + test - Test object for current test being parsed > > > > + > > > > + Return: > > > > + Boolean that represents if the next line in the LineStream was parsed > > > > + as a test header > > > > > > ditto above, this could be > > > True if we parsed a test header line. > > > > See above. Will change this for v3. > > > > > > > > > + """ > > > > + match = TEST_HEADER.match(lines.peek()) > > > > + if not match: > > > > return False > > > > + test.log.append(lines.pop()) > > > > + test.name = match.group(1) > > > > + return True > > > > + > > > > +TEST_PLAN = re.compile(r'1\.\.([0-9]+)') > > > > + > > > > +def parse_test_plan(lines: LineStream, test: Test) -> bool: > > > > + """ > > > > + If the next line in LineStream matches the format of a test > > > > + plan line, the expected number of subtests is set in test object, an > > > > + error is thrown if there are 0 tests, the line is popped, > > > > + and returns True. Otherwise the method adds an error that the test > > > > + plan is missing to the test object and returns False. > > > > > > nit: "missing to the test object" => missing for? > > > > > > Perhaps we can rewrite this as something more like: > > > > > > Parses a test plan and stores the expected number of subtests in `test`. > > > Returns False if the current line doesn't look like a test plan. > > > > > > It reports an error if the expected count is 0. > > > > > > > I definitely agree that 'missing for' is better than 'missing to'. > > However, overall > > this comment does seem confusing and does not match some of the updated > > docstrings. This confusing format is shared by all of the parsing methods. > > Thus, I would like to update the parsing method docstrings in v3. For example, > > this docstring would be changed to: > > > > Parses test plan line and stores the expected number of subtests in `test`. > > Reports an error if expected count is 0. > > Returns False and reports missing test plan error if fails to parse test plan. > > > > > > + > > > > + Accepted format: > > > > + - '1..[number of subtests]' > > > > + > > > > + Parameters: > > > > + lines - LineStream of ktap output to parse > > > > + test - Test object for current test being parsed > > > > + > > > > + Return: > > > > + Boolean that represents if the next line in the LineStream was parsed > > > > + as a test plan > > > > + """ > > > > + match = TEST_PLAN.match(lines.peek()) > > > > + if not match: > > > > + test.expected_count = None > > > > + test.add_error('missing plan line!') > > > > + return False > > > > + test.log.append(lines.pop()) > > > > + expected_count = int(match.group(1)) > > > > + test.expected_count = expected_count > > > > + if expected_count == 0: > > > > + test.status = TestStatus.NO_TESTS > > > > + test.add_error('0 tests run!') > > > > + return True > > > > + > > > > +TEST_RESULT = re.compile(r'^(ok|not ok) ([0-9]+) (- )?(.*)$') > > > > + > > > > +TEST_RESULT_SKIP = re.compile(r'^(ok|not ok) ([0-9]+) (- )?(.*) # SKIP(.*)$') > > > > + > > > > +def peek_test_name_match(lines: LineStream, test: Test) -> bool: > > > > + """ > > > > + If the next line in LineStream matches the format of a test > > > > + result line and the name of the result line matches the name of the > > > > + current test, the method returns True. Otherwise it returns False. > > > > + > > > > + Accepted format: > > > > + - '[ok|not ok] [test number] [-] [test name] [optional skip > > > > + directive]' > > > > + > > > > + Parameters: > > > > + lines - LineStream of KTAP output to parse > > > > + test - Test object for current test being parsed > > > > + > > > > + Return: > > > > + Boolean that represents if the next line in the LineStream matched a > > > > + test result line and the name matched the expected test name > > > > + """ > > > > line = lines.peek() > > > > - match = SUBTEST_DIAGNOSTIC.match(line) > > > > - if match: > > > > - test_case.log.append(lines.pop()) > > > > - crash_match = DIAGNOSTIC_CRASH_MESSAGE.match(line) > > > > - if crash_match: > > > > - test_case.status = TestStatus.TEST_CRASHED > > > > - return True > > > > - else: > > > > + match = TEST_RESULT.match(line) > > > > + if not match: > > > > return False > > > > + name = match.group(4) > > > > + return (name == test.name) > > > > + > > > > +def parse_test_result(lines: LineStream, test: Test, > > > > + expected_num: int) -> bool: > > > > + """ > > > > + If the next line in LineStream matches the format of a test > > > > + result line, the status in the result line is added to the test > > > > + object, the test number is checked to match the expected test number > > > > + and if not an error is added to the test object, and returns True. > > > > + Otherwise it returns False. > > > > + > > > > + Note that the skip diirective is the only > > > > > > nit: diir => dir > > > > > > > Oops. Thanks for catching that. Will change in v3. > > > > > > > > > + directive that causes a change in status and otherwise the directive > > > > + is included in the name of the test. > > > > + > > > > + Accepted format: > > > > + - '[ok|not ok] [test number] [-] [test name] [optional skip > > > > + directive]' > > > > + > > > > + Parameters: > > > > + lines - LineStream of KTAP output to parse > > > > + test - Test object for current test being parsed > > > > + expected_num - expected test number for current test > > > > + > > > > + Return: > > > > + Boolean that represents if the next line in the LineStream was parsed > > > > + as a test result line. > > > > + """ > > > > + line = lines.peek() > > > > + match = TEST_RESULT.match(line) > > > > + skip_match = TEST_RESULT_SKIP.match(line) > > > > > > > > -def parse_test_case(lines: LineStream) -> Optional[TestCase]: > > > > - test_case = TestCase() > > > > - save_non_diagnostic(lines, test_case) > > > > - while parse_diagnostic(lines, test_case): > > > > - pass > > > > - if parse_ok_not_ok_test_case(lines, test_case): > > > > - return test_case > > > > - else: > > > > - return None > > > > - > > > > -SUBTEST_HEADER = re.compile(r'^[\s]+# Subtest: (.*)$') > > > > + # Check if line matches test result line format > > > > + if not match: > > > > + return False > > > > + test.log.append(lines.pop()) > > > > > > > > -def parse_subtest_header(lines: LineStream) -> Optional[str]: > > > > - consume_non_diagnostic(lines) > > > > - if not lines: > > > > - return None > > > > - match = SUBTEST_HEADER.match(lines.peek()) > > > > - if match: > > > > - lines.pop() > > > > - return match.group(1) > > > > + # Set name of test object > > > > + if skip_match: > > > > + test.name = skip_match.group(4) > > > > else: > > > > - return None > > > > + test.name = match.group(4) > > > > > > > > -SUBTEST_PLAN = re.compile(r'[\s]+[0-9]+\.\.([0-9]+)') > > > > + # Check test num > > > > + num = int(match.group(2)) > > > > + if num != expected_num: > > > > + test.add_error('Expected test number ' + > > > > + str(expected_num) + ' but found ' + str(num)) > > > > > > > > -def parse_subtest_plan(lines: LineStream) -> Optional[int]: > > > > - consume_non_diagnostic(lines) > > > > - match = SUBTEST_PLAN.match(lines.peek()) > > > > - if match: > > > > - lines.pop() > > > > - return int(match.group(1)) > > > > - else: > > > > - return None > > > > - > > > > -def max_status(left: TestStatus, right: TestStatus) -> TestStatus: > > > > - if left == right: > > > > - return left > > > > - elif left == TestStatus.TEST_CRASHED or right == TestStatus.TEST_CRASHED: > > > > - return TestStatus.TEST_CRASHED > > > > - elif left == TestStatus.FAILURE or right == TestStatus.FAILURE: > > > > - return TestStatus.FAILURE > > > > - elif left == TestStatus.SKIPPED: > > > > - return right > > > > - else: > > > > - return left > > > > - > > > > -def parse_ok_not_ok_test_suite(lines: LineStream, > > > > - test_suite: TestSuite, > > > > - expected_suite_index: int) -> bool: > > > > - consume_non_diagnostic(lines) > > > > - if not lines: > > > > - test_suite.status = TestStatus.TEST_CRASHED > > > > - return False > > > > - line = lines.peek() > > > > - match = OK_NOT_OK_MODULE.match(line) > > > > - if match: > > > > - lines.pop() > > > > - if match.group(1) == 'ok': > > > > - test_suite.status = TestStatus.SUCCESS > > > > - else: > > > > - test_suite.status = TestStatus.FAILURE > > > > - skip_match = OK_NOT_OK_SKIP.match(line) > > > > - if skip_match: > > > > - test_suite.status = TestStatus.SKIPPED > > > > - suite_index = int(match.group(2)) > > > > - if suite_index != expected_suite_index: > > > > - print_with_timestamp( > > > > - red('[ERROR] ') + 'expected_suite_index ' + > > > > - str(expected_suite_index) + ', but got ' + > > > > - str(suite_index)) > > > > + # Set status of test object > > > > + status = match.group(1) > > > > + if test.status == TestStatus.TEST_CRASHED: > > > > return True > > > > + elif skip_match: > > > > + test.status = TestStatus.SKIPPED > > > > + elif status == 'ok': > > > > + test.status = TestStatus.SUCCESS > > > > else: > > > > - return False > > > > - > > > > -def bubble_up_errors(status_list: Iterable[TestStatus]) -> TestStatus: > > > > - return reduce(max_status, status_list, TestStatus.SKIPPED) > > > > + test.status = TestStatus.FAILURE > > > > + return True > > > > + > > > > +def parse_diagnostic(lines: LineStream) -> List[str]: > > > > + """ > > > > + If the next line in LineStream does not match the format of a test > > > > + case line or test header line, the line is checked if the test has > > > > + crashed and if so adds an error message, pops the line and adds it to > > > > + the log. > > > > + > > > > + Line formats that are not parsed: > > > > + - '# Subtest: [test name]' > > > > + - '[ok|not ok] [test number] [-] [test name] [optional skip > > > > + directive]' > > > > + > > > > + Parameters: > > > > + lines - LineStream of KTAP output to parse > > > > + > > > > + Return: > > > > + Log of diagnostic lines > > > > + """ > > > > + log = [] # type: List[str] > > > > + while lines and not TEST_RESULT.match(lines.peek()) and not \ > > > > + TEST_HEADER.match(lines.peek()): > > > > + log.append(lines.pop()) > > > > + return log > > > > + > > > > +DIAGNOSTIC_CRASH_MESSAGE = re.compile(r'^# .*?: kunit test case crashed!$') > > > > + > > > > +def parse_crash_in_log(test: Test) -> bool: > > > > + """ > > > > + Iterate through the lines of the log to parse for crash message. > > > > + If crash message found, set status to crashed and return True. > > > > + Otherwise return False. > > > > + > > > > + Parameters: > > > > + test - Test object for current test being parsed > > > > + > > > > + Return: > > > > + Boolean that represents if crash message found in log > > > > + """ > > > > + for line in test.log: > > > > + if DIAGNOSTIC_CRASH_MESSAGE.match(line): > > > > + test.status = TestStatus.TEST_CRASHED > > > > + return True > > > > + return False > > > > > > > > -def bubble_up_test_case_errors(test_suite: TestSuite) -> TestStatus: > > > > - max_test_case_status = bubble_up_errors(x.status for x in test_suite.cases) > > > > - return max_status(max_test_case_status, test_suite.status) > > > > +# Printing helper methods: > > > > > > > > -def parse_test_suite(lines: LineStream, expected_suite_index: int) -> Optional[TestSuite]: > > > > - if not lines: > > > > - return None > > > > - consume_non_diagnostic(lines) > > > > - test_suite = TestSuite() > > > > - test_suite.status = TestStatus.SUCCESS > > > > - name = parse_subtest_header(lines) > > > > - if not name: > > > > - return None > > > > - test_suite.name = name > > > > - expected_test_case_num = parse_subtest_plan(lines) > > > > - if expected_test_case_num is None: > > > > - return None > > > > - while expected_test_case_num > 0: > > > > - test_case = parse_test_case(lines) > > > > - if not test_case: > > > > - break > > > > - test_suite.cases.append(test_case) > > > > - expected_test_case_num -= 1 > > > > - if parse_ok_not_ok_test_suite(lines, test_suite, expected_suite_index): > > > > - test_suite.status = bubble_up_test_case_errors(test_suite) > > > > - return test_suite > > > > - elif not lines: > > > > - print_with_timestamp(red('[ERROR] ') + 'ran out of lines before end token') > > > > - return test_suite > > > > - else: > > > > - print(f'failed to parse end of suite "{name}", at line {lines.line_number()}: {lines.peek()}') > > > > - return None > > > > +DIVIDER = '=' * 60 > > > > > > > > -TAP_HEADER = re.compile(r'^TAP version 14$') > > > > +RESET = '\033[0;0m' > > > > > > > > -def parse_tap_header(lines: LineStream) -> bool: > > > > - consume_non_diagnostic(lines) > > > > - if TAP_HEADER.match(lines.peek()): > > > > - lines.pop() > > > > - return True > > > > - else: > > > > - return False > > > > +def red(text: str) -> str: > > > > + """Returns inputted string with red color code.""" > > > > + return '\033[1;31m' + text + RESET > > > > > > > > -TEST_PLAN = re.compile(r'[0-9]+\.\.([0-9]+)') > > > > +def yellow(text: str) -> str: > > > > + """Returns inputted string with yellow color code.""" > > > > + return '\033[1;33m' + text + RESET > > > > > > > > -def parse_test_plan(lines: LineStream) -> Optional[int]: > > > > - consume_non_diagnostic(lines) > > > > - match = TEST_PLAN.match(lines.peek()) > > > > - if match: > > > > - lines.pop() > > > > - return int(match.group(1)) > > > > - else: > > > > - return None > > > > - > > > > -def bubble_up_suite_errors(test_suites: Iterable[TestSuite]) -> TestStatus: > > > > - return bubble_up_errors(x.status for x in test_suites) > > > > - > > > > -def parse_test_result(lines: LineStream) -> TestResult: > > > > - consume_non_diagnostic(lines) > > > > - if not lines or not parse_tap_header(lines): > > > > - return TestResult(TestStatus.FAILURE_TO_PARSE_TESTS, [], lines) > > > > - expected_test_suite_num = parse_test_plan(lines) > > > > - if expected_test_suite_num == 0: > > > > - return TestResult(TestStatus.NO_TESTS, [], lines) > > > > - elif expected_test_suite_num is None: > > > > - return TestResult(TestStatus.FAILURE_TO_PARSE_TESTS, [], lines) > > > > - test_suites = [] > > > > - for i in range(1, expected_test_suite_num + 1): > > > > - test_suite = parse_test_suite(lines, i) > > > > - if test_suite: > > > > - test_suites.append(test_suite) > > > > - else: > > > > - print_with_timestamp( > > > > - red('[ERROR] ') + ' expected ' + > > > > - str(expected_test_suite_num) + > > > > - ' test suites, but got ' + str(i - 2)) > > > > - break > > > > - test_suite = parse_test_suite(lines, -1) > > > > - if test_suite: > > > > - print_with_timestamp(red('[ERROR] ') + > > > > - 'got unexpected test suite: ' + test_suite.name) > > > > - if test_suites: > > > > - return TestResult(bubble_up_suite_errors(test_suites), test_suites, lines) > > > > - else: > > > > - return TestResult(TestStatus.NO_TESTS, [], lines) > > > > +def green(text: str) -> str: > > > > + """Returns inputted string with green color code.""" > > > > + return '\033[1;32m' + text + RESET > > > > > > > > -class TestCounts: > > > > - passed: int > > > > - failed: int > > > > - crashed: int > > > > - skipped: int > > > > +ANSI_LEN = len(red('')) > > > > > > > > - def __init__(self): > > > > - self.passed = 0 > > > > - self.failed = 0 > > > > - self.crashed = 0 > > > > - self.skipped = 0 > > > > +def print_with_timestamp(message: str) -> None: > > > > + """Prints message with timestamp at beginning.""" > > > > + print('[%s] %s' % (datetime.now().strftime('%H:%M:%S'), message)) > > > > > > > > - def total(self) -> int: > > > > - return self.passed + self.failed + self.crashed + self.skipped > > > > - > > > > -def print_and_count_results(test_result: TestResult) -> TestCounts: > > > > - counts = TestCounts() > > > > - for test_suite in test_result.suites: > > > > - if test_suite.status == TestStatus.SUCCESS: > > > > - print_suite_divider(green('[PASSED] ') + test_suite.name) > > > > - elif test_suite.status == TestStatus.SKIPPED: > > > > - print_suite_divider(yellow('[SKIPPED] ') + test_suite.name) > > > > - elif test_suite.status == TestStatus.TEST_CRASHED: > > > > - print_suite_divider(red('[CRASHED] ' + test_suite.name)) > > > > +def format_test_divider(message: str, len_message: int) -> str: > > > > + """ > > > > + Returns string with message centered in fixed width divider. > > > > + > > > > + Example: > > > > + '===================== message example =====================' > > > > + > > > > + Parameters: > > > > + message - message to be centered in divider line > > > > + len_message - length of the message to be printed such that > > > > + any characters of the color codes are not counted > > > > + > > > > + Return: > > > > + String containing message centered in fixed width divider > > > > + """ > > > > + default_count = 3 # default number of dashes > > > > + len_1 = default_count > > > > + len_2 = default_count > > > > + difference = len(DIVIDER) - len_message - 2 # 2 spaces added > > > > + if difference > 0: > > > > + # calculate number of dashes for each side of the divider > > > > + len_1 = int(difference / 2) > > > > + len_2 = difference - len_1 > > > > + return ('=' * len_1) + ' ' + message + ' ' + ('=' * len_2) > > > > + > > > > +def print_test_header(test: Test) -> None: > > > > + """ > > > > + Prints test header with test name and optionally the expected number > > > > + of subtests. > > > > + > > > > + Example: > > > > + '=================== example (2 subtests) ===================' > > > > + > > > > + Parameters: > > > > + test - Test object representing current test being printed > > > > + """ > > > > + message = test.name > > > > + if test.expected_count: > > > > + message += ' (' + str(test.expected_count) + ' subtests)' > > > > + print_with_timestamp(format_test_divider(message, len(message))) > > > > + > > > > +def print_log(log: Iterable[str]) -> None: > > > > + """ > > > > + Prints all strings in saved log for test in yellow. > > > > + > > > > + Parameters: > > > > + log - Iterable object with all strings saved in log for test > > > > + """ > > > > + for m in log: > > > > + print_with_timestamp(yellow(m)) > > > > + print_with_timestamp('') > > > > + > > > > +def format_test_result(test: Test) -> str: > > > > + """ > > > > + Returns string with formatted test result with colored status and test > > > > + name. > > > > + > > > > + Example: > > > > + '[PASSED] example' > > > > + > > > > + Parameters: > > > > + test - Test object representing current test being printed > > > > + > > > > + Return: > > > > + String containing formatted test result > > > > + """ > > > > + if test.status == TestStatus.SUCCESS: > > > > + return (green('[PASSED] ') + test.name) > > > > + elif test.status == TestStatus.SKIPPED: > > > > + return (yellow('[SKIPPED] ') + test.name) > > > > + elif test.status == TestStatus.TEST_CRASHED: > > > > + print_log(test.log) > > > > + return (red('[CRASHED] ') + test.name) > > > > + else: > > > > + print_log(test.log) > > > > + return (red('[FAILED] ') + test.name) > > > > + > > > > +def print_test_result(test: Test) -> None: > > > > + """ > > > > + Prints result line with status of test. > > > > + > > > > + Example: > > > > + '[PASSED] example' > > > > + > > > > + Parameters: > > > > + test - Test object representing current test being printed > > > > + """ > > > > + print_with_timestamp(format_test_result(test)) > > > > + > > > > +def print_test_footer(test: Test) -> None: > > > > + """ > > > > + Prints test footer with status of test. > > > > + > > > > + Example: > > > > + '===================== [PASSED] example =====================' > > > > + > > > > + Parameters: > > > > + test - Test object representing current test being printed > > > > + """ > > > > + message = format_test_result(test) > > > > + print_with_timestamp(format_test_divider(message, > > > > + len(message) - ANSI_LEN)) > > > > + > > > > +def print_summary_line(test: Test) -> None: > > > > + """ > > > > + Prints summary line of test object. Color of line is dependent on > > > > + status of test. Color is green if test passes, yellow if test is > > > > + skipped, and red if the test fails or crashes. Summary line contains > > > > + counts of the statuses of the tests subtests or the test itself if it > > > > + has no subtests. > > > > + > > > > + Example: > > > > + "Testing complete. Passed: 2, Failed: 0, Crashed: 0, Skipped: 0, > > > > + Errors: 0" > > > > + > > > > + test - Test object representing current test being printed > > > > + """ > > > > + if test.status == TestStatus.SUCCESS or \ > > > > + test.status == TestStatus.NO_TESTS: > > > > + color = green > > > > + elif test.status == TestStatus.SKIPPED: > > > > + color = yellow > > > > + else: > > > > + color = red > > > > + counts = test.counts > > > > + print_with_timestamp(color('Testing complete. ' + str(counts))) > > > > + > > > > +def print_error(error_message: str) -> None: > > > > + """ > > > > + Prints error message with error format. > > > > + > > > > + Example: > > > > + "[ERROR] Test example: missing test plan!" > > > > + > > > > + Parameters: > > > > + error_message - message describing error > > > > + """ > > > > + print_with_timestamp(red('[ERROR] ') + error_message) > > > > + > > > > +# Other methods: > > > > + > > > > +def bubble_up_test_results(test: Test) -> None: > > > > + """ > > > > + If the test has subtests, add the test counts of the subtests to the > > > > + test and check if any of the tests crashed and if so set the test > > > > + status to crashed. Otherwise if the test has no subtests add the > > > > + status of the test to the test counts. > > > > + > > > > + Parameters: > > > > + test - Test object for current test being parsed > > > > + """ > > > > + parse_crash_in_log(test) > > > > + subtests = test.subtests > > > > + counts = test.counts > > > > + status = test.status > > > > + for t in subtests: > > > > + counts.add_subtest_counts(t.counts) > > > > + if counts.total() == 0: > > > > + counts.add_status(status) > > > > + elif test.counts.get_status() == TestStatus.TEST_CRASHED: > > > > + test.status = TestStatus.TEST_CRASHED > > > > + > > > > +def parse_test(lines: LineStream, expected_num: int, log: List[str]) -> Test: > > > > + """ > > > > + Finds next test to parse in LineStream, creates new Test object, > > > > + parses any subtests of the test, populates Test object with all > > > > + information (status, name) about the test and the Test objects for > > > > + any subtests, and then returns the Test object. The method accepts > > > > + three formats of tests: > > > > + > > > > + Accepted test formats: > > > > + > > > > + - Main KTAP/TAP header > > > > + > > > > + Example: > > > > + > > > > + KTAP version 1 > > > > + 1..4 > > > > + [subtests] > > > > + > > > > + - Subtest header line > > > > + > > > > + Example: > > > > + > > > > + # Subtest: name > > > > + 1..3 > > > > + [subtests] > > > > + ok 1 name > > > > + > > > > + - Test result line > > > > + > > > > + Example: > > > > + > > > > + ok 1 - test > > > > + > > > > + Parameters: > > > > + lines - LineStream of KTAP output to parse > > > > + expected_num - expected test number for test to be parsed > > > > + log - list of strings containing any preceding diagnostic lines > > > > + corresponding to the current test > > > > + > > > > + Return: > > > > + Test object populated with characteristics and any subtests > > > > + """ > > > > + test = Test() > > > > + test.log.extend(log) > > > > + parent_test = False > > > > + main = parse_ktap_header(lines, test) > > > > + if main: > > > > + # If KTAP/TAP header is found, attempt to parse > > > > + # test plan > > > > + test.name = "main" > > > > + parse_test_plan(lines, test) > > > > + else: > > > > + # If KTAP/TAP header is not found, test must be subtest > > > > + # header or test result line so parse attempt to parser > > > > + # subtest header > > > > + parent_test = parse_test_header(lines, test) > > > > + if parent_test: > > > > + # If subtest header is found, attempt to parse > > > > + # test plan and print header > > > > + parse_test_plan(lines, test) > > > > + print_test_header(test) > > > > + expected_count = test.expected_count > > > > + subtests = [] > > > > + test_num = 1 > > > > + while main or expected_count is None or test_num <= expected_count: > > > > + # Loop to parse any subtests. > > > > + # If test is main test, do not break until no lines left. > > > > + # Otherwise, break after parsing expected number of tests or > > > > + # if expected number of tests is unknown break when found > > > > + # test result line with matching name to subtest header. > > > > + if not lines: > > > > + if expected_count and test_num <= expected_count: > > > > + test.add_error('missing expected subtests!') > > > > + break > > > > + sub_log = parse_diagnostic(lines) > > > > + if not expected_count and not main and \ > > > > + peek_test_name_match(lines, test): > > > > + test.log.extend(sub_log) > > > > + break > > > > + subtests.append(parse_test(lines, test_num, sub_log)) > > > > + test_num += 1 > > > > + test.subtests = subtests > > > > + if not main: > > > > + # If not main test, look for test result line > > > > + test.log.extend(parse_diagnostic(lines)) > > > > + if (parent_test and peek_test_name_match(lines, test)) or \ > > > > + not parent_test: > > > > + parse_test_result(lines, test, expected_num) > > > > else: > > > > - print_suite_divider(red('[FAILED] ') + test_suite.name) > > > > - for test_case in test_suite.cases: > > > > - if test_case.status == TestStatus.SUCCESS: > > > > - counts.passed += 1 > > > > - print_with_timestamp(green('[PASSED] ') + test_case.name) > > > > - elif test_case.status == TestStatus.SKIPPED: > > > > - counts.skipped += 1 > > > > - print_with_timestamp(yellow('[SKIPPED] ') + test_case.name) > > > > - elif test_case.status == TestStatus.TEST_CRASHED: > > > > - counts.crashed += 1 > > > > - print_with_timestamp(red('[CRASHED] ' + test_case.name)) > > > > - print_log(map(yellow, test_case.log)) > > > > - print_with_timestamp('') > > > > - else: > > > > - counts.failed += 1 > > > > - print_with_timestamp(red('[FAILED] ') + test_case.name) > > > > - print_log(map(yellow, test_case.log)) > > > > - print_with_timestamp('') > > > > - return counts > > > > + test.add_error('missing subtest result line!') > > > > + # Add statuses to TestCounts attribute in Test object > > > > + bubble_up_test_results(test) > > > > + if parent_test: > > > > + # If test has subtests and is not the main test object, print > > > > + # footer. > > > > + print_test_footer(test) > > > > + elif not main: > > > > + print_test_result(test) > > > > + return test > > > > > > > > def parse_run_tests(kernel_output: Iterable[str]) -> TestResult: > > > > - counts = TestCounts() > > > > + """ > > > > + Using kernel output, extract KTAP lines, parse the lines for test > > > > + results and print condensed test results and summary line . > > > > + > > > > + Parameters: > > > > + kernel_output - Iterable object contains lines of kernel output > > > > + > > > > + Return: > > > > + TestResult - Tuple containg status of main test object, main test > > > > + object with all subtests, and log of all KTAP lines. > > > > + """ > > > > + print_with_timestamp(DIVIDER) > > > > lines = extract_tap_lines(kernel_output) > > > > - test_result = parse_test_result(lines) > > > > - if test_result.status == TestStatus.NO_TESTS: > > > > - print(red('[ERROR] ') + yellow('no tests run!')) > > > > - elif test_result.status == TestStatus.FAILURE_TO_PARSE_TESTS: > > > > - print(red('[ERROR] ') + yellow('could not parse test results!')) > > > > + test = Test() > > > > + if not lines: > > > > + test.add_error('invalid KTAP input!') > > > > + test.status = TestStatus.FAILURE_TO_PARSE_TESTS > > > > else: > > > > - counts = print_and_count_results(test_result) > > > > + test = parse_test(lines, 0, []) > > > > + if test.status != TestStatus.NO_TESTS: > > > > + test.status = test.counts.get_status() > > > > print_with_timestamp(DIVIDER) > > > > - if test_result.status == TestStatus.SUCCESS: > > > > - fmt = green > > > > - elif test_result.status == TestStatus.SKIPPED: > > > > - fmt = yellow > > > > - else: > > > > - fmt =red > > > > - print_with_timestamp( > > > > - fmt('Testing complete. %d tests run. %d failed. %d crashed. %d skipped.' % > > > > - (counts.total(), counts.failed, counts.crashed, counts.skipped))) > > > > - return test_result > > > > + print_summary_line(test) > > > > + return TestResult(test.status, test, lines) > > > > diff --git a/tools/testing/kunit/kunit_tool_test.py b/tools/testing/kunit/kunit_tool_test.py > > > > index 619c4554cbff..e527b90de8ea 100755 > > > > --- a/tools/testing/kunit/kunit_tool_test.py > > > > +++ b/tools/testing/kunit/kunit_tool_test.py > > > > @@ -106,10 +106,10 @@ class KUnitParserTest(unittest.TestCase): > > > > with open(log_path) as file: > > > > result = kunit_parser.extract_tap_lines(file.readlines()) > > > > self.assertContains('TAP version 14', result) > > > > - self.assertContains(' # Subtest: example', result) > > > > - self.assertContains(' 1..2', result) > > > > - self.assertContains(' ok 1 - example_simple_test', result) > > > > - self.assertContains(' ok 2 - example_mock_test', result) > > > > + self.assertContains('# Subtest: example', result) > > > > + self.assertContains('1..2', result) > > > > + self.assertContains('ok 1 - example_simple_test', result) > > > > + self.assertContains('ok 2 - example_mock_test', result) > > > > self.assertContains('ok 1 - example', result) > > > > > > > > def test_output_with_prefix_isolated_correctly(self): > > > > @@ -117,28 +117,28 @@ class KUnitParserTest(unittest.TestCase): > > > > with open(log_path) as file: > > > > result = kunit_parser.extract_tap_lines(file.readlines()) > > > > self.assertContains('TAP version 14', result) > > > > - self.assertContains(' # Subtest: kunit-resource-test', result) > > > > - self.assertContains(' 1..5', result) > > > > - self.assertContains(' ok 1 - kunit_resource_test_init_resources', result) > > > > - self.assertContains(' ok 2 - kunit_resource_test_alloc_resource', result) > > > > - self.assertContains(' ok 3 - kunit_resource_test_destroy_resource', result) > > > > - self.assertContains(' foo bar #', result) > > > > - self.assertContains(' ok 4 - kunit_resource_test_cleanup_resources', result) > > > > - self.assertContains(' ok 5 - kunit_resource_test_proper_free_ordering', result) > > > > + self.assertContains('# Subtest: kunit-resource-test', result) > > > > + self.assertContains('1..5', result) > > > > + self.assertContains('ok 1 - kunit_resource_test_init_resources', result) > > > > + self.assertContains('ok 2 - kunit_resource_test_alloc_resource', result) > > > > + self.assertContains('ok 3 - kunit_resource_test_destroy_resource', result) > > > > + self.assertContains('foo bar #', result) > > > > + self.assertContains('ok 4 - kunit_resource_test_cleanup_resources', result) > > > > + self.assertContains('ok 5 - kunit_resource_test_proper_free_ordering', result) > > > > self.assertContains('ok 1 - kunit-resource-test', result) > > > > - self.assertContains(' foo bar # non-kunit output', result) > > > > - self.assertContains(' # Subtest: kunit-try-catch-test', result) > > > > - self.assertContains(' 1..2', result) > > > > - self.assertContains(' ok 1 - kunit_test_try_catch_successful_try_no_catch', > > > > + self.assertContains('foo bar # non-kunit output', result) > > > > + self.assertContains('# Subtest: kunit-try-catch-test', result) > > > > + self.assertContains('1..2', result) > > > > + self.assertContains('ok 1 - kunit_test_try_catch_successful_try_no_catch', > > > > result) > > > > - self.assertContains(' ok 2 - kunit_test_try_catch_unsuccessful_try_does_catch', > > > > + self.assertContains('ok 2 - kunit_test_try_catch_unsuccessful_try_does_catch', > > > > result) > > > > self.assertContains('ok 2 - kunit-try-catch-test', result) > > > > - self.assertContains(' # Subtest: string-stream-test', result) > > > > - self.assertContains(' 1..3', result) > > > > - self.assertContains(' ok 1 - string_stream_test_empty_on_creation', result) > > > > - self.assertContains(' ok 2 - string_stream_test_not_empty_after_add', result) > > > > - self.assertContains(' ok 3 - string_stream_test_get_string', result) > > > > + self.assertContains('# Subtest: string-stream-test', result) > > > > + self.assertContains('1..3', result) > > > > + self.assertContains('ok 1 - string_stream_test_empty_on_creation', result) > > > > + self.assertContains('ok 2 - string_stream_test_not_empty_after_add', result) > > > > + self.assertContains('ok 3 - string_stream_test_get_string', result) > > > > self.assertContains('ok 3 - string-stream-test', result) > > > > > > > > def test_parse_successful_test_log(self): > > > > @@ -148,6 +148,13 @@ class KUnitParserTest(unittest.TestCase): > > > > self.assertEqual( > > > > kunit_parser.TestStatus.SUCCESS, > > > > result.status) > > > > + def test_parse_successful_nested_tests_log(self): > > > > + all_passed_log = test_data_path('test_is_test_passed-all_passed_nested.log') > > > > + with open(all_passed_log) as file: > > > > + result = kunit_parser.parse_run_tests(file.readlines()) > > > > + self.assertEqual( > > > > + kunit_parser.TestStatus.SUCCESS, > > > > + result.status) > > > > > > > > def test_parse_failed_test_log(self): > > > > failed_log = test_data_path('test_is_test_passed-failure.log') > > > > @@ -162,17 +169,31 @@ class KUnitParserTest(unittest.TestCase): > > > > with open(empty_log) as file: > > > > result = kunit_parser.parse_run_tests( > > > > kunit_parser.extract_tap_lines(file.readlines())) > > > > - self.assertEqual(0, len(result.suites)) > > > > + self.assertEqual(0, len(result.test.subtests)) > > > > self.assertEqual( > > > > kunit_parser.TestStatus.FAILURE_TO_PARSE_TESTS, > > > > result.status) > > > > > > > > + def test_missing_test_plan(self): > > > > + missing_plan_log = test_data_path('test_is_test_passed-' > > > > + 'missing_plan.log') > > > > + with open(missing_plan_log) as file: > > > > + result = kunit_parser.parse_run_tests( > > > > + kunit_parser.extract_tap_lines( > > > > + file.readlines())) > > > > + self.assertEqual(2, result.test.counts.errors) > > > > + self.assertEqual( > > > > + kunit_parser.TestStatus.SUCCESS, > > > > + result.status) > > > > + > > > > def test_no_tests(self): > > > > - empty_log = test_data_path('test_is_test_passed-no_tests_run_with_header.log') > > > > - with open(empty_log) as file: > > > > + header_log = test_data_path('test_is_test_passed-' > > > > + 'no_tests_run_with_header.log') > > > > + with open(header_log) as file: > > > > result = kunit_parser.parse_run_tests( > > > > - kunit_parser.extract_tap_lines(file.readlines())) > > > > - self.assertEqual(0, len(result.suites)) > > > > + kunit_parser.extract_tap_lines( > > > > + file.readlines())) > > > > + self.assertEqual(0, len(result.test.subtests)) > > > > self.assertEqual( > > > > kunit_parser.TestStatus.NO_TESTS, > > > > result.status) > > > > @@ -182,15 +203,17 @@ class KUnitParserTest(unittest.TestCase): > > > > print_mock = mock.patch('builtins.print').start() > > > > with open(crash_log) as file: > > > > result = kunit_parser.parse_run_tests( > > > > - kunit_parser.extract_tap_lines(file.readlines())) > > > > - print_mock.assert_any_call(StrContains('could not parse test results!')) > > > > + kunit_parser.extract_tap_lines( > > > > + file.readlines())) > > > > + print_mock.assert_any_call(StrContains('invalid KTAP input!')) > > > > print_mock.stop() > > > > file.close() > > > > > > > > def test_crashed_test(self): > > > > crashed_log = test_data_path('test_is_test_passed-crash.log') > > > > with open(crashed_log) as file: > > > > - result = kunit_parser.parse_run_tests(file.readlines()) > > > > + result = kunit_parser.parse_run_tests( > > > > + file.readlines()) > > > > self.assertEqual( > > > > kunit_parser.TestStatus.TEST_CRASHED, > > > > result.status) > > > > @@ -216,6 +239,23 @@ class KUnitParserTest(unittest.TestCase): > > > > result.status) > > > > file.close() > > > > > > > > + def test_ignores_hyphen(self): > > > > + hyphen_log = test_data_path('test_strip_hyphen.log') > > > > + file = open(hyphen_log) > > > > + result = kunit_parser.parse_run_tests(file.readlines()) > > > > + > > > > + # A skipped test does not fail the whole suite. > > > > + self.assertEqual( > > > > + kunit_parser.TestStatus.SUCCESS, > > > > + result.status) > > > > + self.assertEqual( > > > > + "sysctl_test", > > > > + result.test.subtests[0].name) > > > > + self.assertEqual( > > > > + "example", > > > > + result.test.subtests[1].name) > > > > + file.close() > > > > + > > > > > > > > def test_ignores_prefix_printk_time(self): > > > > prefix_log = test_data_path('test_config_printk_time.log') > > > > @@ -224,7 +264,7 @@ class KUnitParserTest(unittest.TestCase): > > > > self.assertEqual( > > > > kunit_parser.TestStatus.SUCCESS, > > > > result.status) > > > > - self.assertEqual('kunit-resource-test', result.suites[0].name) > > > > + self.assertEqual('kunit-resource-test', result.test.subtests[0].name) > > > > > > > > def test_ignores_multiple_prefixes(self): > > > > prefix_log = test_data_path('test_multiple_prefixes.log') > > > > @@ -233,7 +273,7 @@ class KUnitParserTest(unittest.TestCase): > > > > self.assertEqual( > > > > kunit_parser.TestStatus.SUCCESS, > > > > result.status) > > > > - self.assertEqual('kunit-resource-test', result.suites[0].name) > > > > + self.assertEqual('kunit-resource-test', result.test.subtests[0].name) > > > > > > > > def test_prefix_mixed_kernel_output(self): > > > > mixed_prefix_log = test_data_path('test_interrupted_tap_output.log') > > > > @@ -242,7 +282,7 @@ class KUnitParserTest(unittest.TestCase): > > > > self.assertEqual( > > > > kunit_parser.TestStatus.SUCCESS, > > > > result.status) > > > > - self.assertEqual('kunit-resource-test', result.suites[0].name) > > > > + self.assertEqual('kunit-resource-test', result.test.subtests[0].name) > > > > > > > > def test_prefix_poundsign(self): > > > > pound_log = test_data_path('test_pound_sign.log') > > > > @@ -251,16 +291,16 @@ class KUnitParserTest(unittest.TestCase): > > > > self.assertEqual( > > > > kunit_parser.TestStatus.SUCCESS, > > > > result.status) > > > > - self.assertEqual('kunit-resource-test', result.suites[0].name) > > > > + self.assertEqual('kunit-resource-test', result.test.subtests[0].name) > > > > > > > > def test_kernel_panic_end(self): > > > > panic_log = test_data_path('test_kernel_panic_interrupt.log') > > > > with open(panic_log) as file: > > > > result = kunit_parser.parse_run_tests(file.readlines()) > > > > self.assertEqual( > > > > - kunit_parser.TestStatus.TEST_CRASHED, > > > > + kunit_parser.TestStatus.SUCCESS, > > > > result.status) > > > > - self.assertEqual('kunit-resource-test', result.suites[0].name) > > > > + self.assertEqual('kunit-resource-test', result.test.subtests[0].name) > > > > > > > > def test_pound_no_prefix(self): > > > > pound_log = test_data_path('test_pound_no_prefix.log') > > > > @@ -269,7 +309,7 @@ class KUnitParserTest(unittest.TestCase): > > > > self.assertEqual( > > > > kunit_parser.TestStatus.SUCCESS, > > > > result.status) > > > > - self.assertEqual('kunit-resource-test', result.suites[0].name) > > > > + self.assertEqual('kunit-resource-test', result.test.subtests[0].name) > > > > > > > > class LinuxSourceTreeTest(unittest.TestCase): > > > > > > > > @@ -291,6 +331,14 @@ class LinuxSourceTreeTest(unittest.TestCase): > > > > pass > > > > tree = kunit_kernel.LinuxSourceTree('', kunitconfig_path=dir) > > > > > > > > + def test_kselftest_nested(self): > > > > + kselftest_log = test_data_path('test_is_test_passed-kselftest.log') > > > > + with open(kselftest_log) as file: > > > > + result = kunit_parser.parse_run_tests(file.readlines()) > > > > + self.assertEqual( > > > > + kunit_parser.TestStatus.SUCCESS, > > > > + result.status) > > > > + > > > > # TODO: add more test cases. > > > > > > > > > > > > @@ -322,6 +370,12 @@ class KUnitJsonTest(unittest.TestCase): > > > > result = self._json_for('test_is_test_passed-no_tests_run_with_header.log') > > > > self.assertEqual(0, len(result['sub_groups'])) > > > > > > > > + def test_nested_json(self): > > > > + result = self._json_for('test_is_test_passed-all_passed_nested.log') > > > > + self.assertEqual( > > > > + {'name': 'example_simple_test', 'status': 'PASS'}, > > > > + result["sub_groups"][0]["sub_groups"][0]["test_cases"][0]) > > > > + > > > > class StrContains(str): > > > > def __eq__(self, other): > > > > return self in other > > > > @@ -380,7 +434,7 @@ class KUnitMainTest(unittest.TestCase): > > > > self.assertEqual(e.exception.code, 1) > > > > self.assertEqual(self.linux_source_mock.build_reconfig.call_count, 1) > > > > self.assertEqual(self.linux_source_mock.run_kernel.call_count, 1) > > > > - self.print_mock.assert_any_call(StrContains(' 0 tests run')) > > > > + self.print_mock.assert_any_call(StrContains('invalid KTAP input!')) > > > > > > > > def test_exec_raw_output(self): > > > > self.linux_source_mock.run_kernel = mock.Mock(return_value=[]) > > > > @@ -388,7 +442,7 @@ class KUnitMainTest(unittest.TestCase): > > > > self.assertEqual(self.linux_source_mock.run_kernel.call_count, 1) > > > > for call in self.print_mock.call_args_list: > > > > self.assertNotEqual(call, mock.call(StrContains('Testing complete.'))) > > > > - self.assertNotEqual(call, mock.call(StrContains(' 0 tests run'))) > > > > + self.assertNotEqual(call, mock.call(StrContains(' 0 tests run!'))) > > > > > > > > def test_run_raw_output(self): > > > > self.linux_source_mock.run_kernel = mock.Mock(return_value=[]) > > > > @@ -397,7 +451,7 @@ class KUnitMainTest(unittest.TestCase): > > > > self.assertEqual(self.linux_source_mock.run_kernel.call_count, 1) > > > > for call in self.print_mock.call_args_list: > > > > self.assertNotEqual(call, mock.call(StrContains('Testing complete.'))) > > > > - self.assertNotEqual(call, mock.call(StrContains(' 0 tests run'))) > > > > + self.assertNotEqual(call, mock.call(StrContains(' 0 tests run!'))) > > > > > > > > def test_run_raw_output_kunit(self): > > > > self.linux_source_mock.run_kernel = mock.Mock(return_value=[]) > > > > diff --git a/tools/testing/kunit/test_data/test_is_test_passed-all_passed_nested.log > > b/tools/testing/kunit/test_data/test_is_test_passed-all_passed_nested.log > > > > new file mode 100644 > > > > index 000000000000..9d5b04fe43a6 > > > > --- /dev/null > > > > +++ b/tools/testing/kunit/test_data/test_is_test_passed-all_passed_nested.log > > > > @@ -0,0 +1,34 @@ > > > > +TAP version 14 > > > > +1..2 > > > > + # Subtest: sysctl_test > > > > + 1..4 > > > > + # sysctl_test_dointvec_null_tbl_data: sysctl_test_dointvec_null_tbl_data passed > > > > + ok 1 - sysctl_test_dointvec_null_tbl_data > > > > + # Subtest: example > > > > + 1..2 > > > > + init_suite > > > > + # example_simple_test: initializing > > > > + # example_simple_test: example_simple_test passed > > > > + ok 1 - example_simple_test > > > > + # example_mock_test: initializing > > > > + # example_mock_test: example_mock_test passed > > > > + ok 2 - example_mock_test > > > > + kunit example: all tests passed > > > > + ok 2 - example > > > > + # sysctl_test_dointvec_table_len_is_zero: sysctl_test_dointvec_table_len_is_zero passed > > > > + ok 3 - sysctl_test_dointvec_table_len_is_zero > > > > + # sysctl_test_dointvec_table_read_but_position_set: sysctl_test_dointvec_table_read_but_position_set passed > > > > + ok 4 - sysctl_test_dointvec_table_read_but_position_set > > > > +kunit sysctl_test: all tests passed > > > > +ok 1 - sysctl_test > > > > + # Subtest: example > > > > + 1..2 > > > > +init_suite > > > > + # example_simple_test: initializing > > > > + # example_simple_test: example_simple_test passed > > > > + ok 1 - example_simple_test > > > > + # example_mock_test: initializing > > > > + # example_mock_test: example_mock_test passed > > > > + ok 2 - example_mock_test > > > > +kunit example: all tests passed > > > > +ok 2 - example > > > > diff --git a/tools/testing/kunit/test_data/test_is_test_passed-kselftest.log b/tools/testing/kunit/test_data/test_is_test_passed- > > kselftest.log > > > > new file mode 100644 > > > > index 000000000000..65d3f27feaf2 > > > > --- /dev/null > > > > +++ b/tools/testing/kunit/test_data/test_is_test_passed-kselftest.log > > > > @@ -0,0 +1,14 @@ > > > > +TAP version 13 > > > > +1..2 > > > > +# selftests: membarrier: membarrier_test_single_thread > > > > +# TAP version 13 > > > > +# 1..2 > > > > +# ok 1 sys_membarrier available > > > > +# ok 2 sys membarrier invalid command test: command = -1, flags = 0, errno = 22. Failed as expected > > > > +ok 1 selftests: membarrier: membarrier_test_single_thread > > > > +# selftests: membarrier: membarrier_test_multi_thread > > > > +# TAP version 13 > > > > +# 1..2 > > > > +# ok 1 sys_membarrier available > > > > +# ok 2 sys membarrier invalid command test: command = -1, flags = 0, errno = 22. Failed as expected > > > > +ok 2 selftests: membarrier: membarrier_test_multi_thread > > > > diff --git a/tools/testing/kunit/test_data/test_is_test_passed-missing_plan.log b/tools/testing/kunit/test_data/test_is_test_passed- > > missing_plan.log > > > > new file mode 100644 > > > > index 000000000000..5cd17b7f818a > > > > --- /dev/null > > > > +++ b/tools/testing/kunit/test_data/test_is_test_passed-missing_plan.log > > > > @@ -0,0 +1,31 @@ > > > > +KTAP version 1 > > > > + # Subtest: sysctl_test > > > > + # sysctl_test_dointvec_null_tbl_data: sysctl_test_dointvec_null_tbl_data passed > > > > + ok 1 - sysctl_test_dointvec_null_tbl_data > > > > + # sysctl_test_dointvec_table_maxlen_unset: sysctl_test_dointvec_table_maxlen_unset passed > > > > + ok 2 - sysctl_test_dointvec_table_maxlen_unset > > > > + # sysctl_test_dointvec_table_len_is_zero: sysctl_test_dointvec_table_len_is_zero passed > > > > + ok 3 - sysctl_test_dointvec_table_len_is_zero > > > > + # sysctl_test_dointvec_table_read_but_position_set: sysctl_test_dointvec_table_read_but_position_set passed > > > > + ok 4 - sysctl_test_dointvec_table_read_but_position_set > > > > + # sysctl_test_dointvec_happy_single_positive: sysctl_test_dointvec_happy_single_positive passed > > > > + ok 5 - sysctl_test_dointvec_happy_single_positive > > > > + # sysctl_test_dointvec_happy_single_negative: sysctl_test_dointvec_happy_single_negative passed > > > > + ok 6 - sysctl_test_dointvec_happy_single_negative > > > > + # sysctl_test_dointvec_single_less_int_min: sysctl_test_dointvec_single_less_int_min passed > > > > + ok 7 - sysctl_test_dointvec_single_less_int_min > > > > + # sysctl_test_dointvec_single_greater_int_max: sysctl_test_dointvec_single_greater_int_max passed > > > > + ok 8 - sysctl_test_dointvec_single_greater_int_max > > > > +kunit sysctl_test: all tests passed > > > > +ok 1 - sysctl_test > > > > + # Subtest: example > > > > + 1..2 > > > > +init_suite > > > > + # example_simple_test: initializing > > > > + # example_simple_test: example_simple_test passed > > > > + ok 1 - example_simple_test > > > > + # example_mock_test: initializing > > > > + # example_mock_test: example_mock_test passed > > > > + ok 2 - example_mock_test > > > > +kunit example: all tests passed > > > > +ok 2 - example > > > > diff --git a/tools/testing/kunit/test_data/test_strip_hyphen.log b/tools/testing/kunit/test_data/test_strip_hyphen.log > > > > new file mode 100644 > > > > index 000000000000..92ac7c24b374 > > > > --- /dev/null > > > > +++ b/tools/testing/kunit/test_data/test_strip_hyphen.log > > > > @@ -0,0 +1,16 @@ > > > > +KTAP version 1 > > > > +1..2 > > > > + # Subtest: sysctl_test > > > > + 1..1 > > > > + # sysctl_test_dointvec_null_tbl_data: sysctl_test_dointvec_null_tbl_data passed > > > > + ok 1 - sysctl_test_dointvec_null_tbl_data > > > > +kunit sysctl_test: all tests passed > > > > +ok 1 - sysctl_test > > > > + # Subtest: example > > > > + 1..1 > > > > +init_suite > > > > + # example_simple_test: initializing > > > > + # example_simple_test: example_simple_test passed > > > > + ok 1 example_simple_test > > > > +kunit example: all tests passed > > > > +ok 2 example > > > > -- > > > > 2.33.0.259.gc128427fd7-goog > > > > > > > > -- > > > > You received this message because you are subscribed to the Google Groups "KUnit Development" group. > > > > To unsubscribe from this group and stop receiving emails from it, send an email to kunit-dev+unsubscribe(a)googlegroups.com. > > > > To view this discussion on the web visit https://groups.google.com/d/msgid/kunit-dev/20210826195505.3066755-1- > > rmoar%40google.com.

4 years, 2 months

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[PATCH v2] kunit: tool: improve compatibility of kunit_parser with KTAP specification

by Rae Moar

Update to kunit_parser to improve compatibility with KTAP specification including arbitrarily nested tests. Patch accomplishes three major changes: - Use a general Test object to represent all tests rather than TestCase and TestSuite objects. This allows for easier implementation of arbitrary levels of nested tests and promotes the idea that both test suites and test cases are tests. - Print errors incrementally rather than all at once after the parsing finishes to maximize information given to the user in the case of the parser given invalid input and to increase the helpfulness of the timestamps given during printing. Note that kunit.py parse does not print incrementally yet. However, this fix brings us closer to this feature. - Increase compatibility for different formats of input. Arbitrary levels of nested tests supported. Also, test cases and test suites are now supported to be present on the same level of testing. This patch now implements the KTAP specification as described here: https://lore.kernel.org/linux-kselftest/CA+GJov6tdjvY9x12JsJT14qn6c7NViJxqa…. This patch adjusts the kunit_tool_test.py file to check for the correct outputs from the new parser and adds a new test to check the parsing for a KTAP result log with correct format for multiple nested subtests (test_is_test_passed-all_passed_nested.log). This patch also alters the kunit_json.py file to allow for arbitrarily nested tests. Signed-off-by: Rae Moar <rmoar(a)google.com> Reviewed-by: Brendan Higgins <brendanhiggins(a)google.com> --- Change log from v1: https://lore.kernel.org/linux-kselftest/20210820200032.2178134-1-rmoar@goog… - Rebase onto kselftest/kunit branch - Add tests to kunit_tool_test.py to check parser is correctly stripping hyphen, producing correct json objects with nested tests, correctly passing kselftest TAP output, and correctly deals with missing test plan. - Fix bug to correctly match test name in instance of a missing test plan. - Fix bug in kunit_tool_test.py pointed out by Daniel where it was not correctly checking for a proper match to the '0 tests run!' error message. Reverts changes back to original. - A few minor changes to commit message using Daniel's comments. - Change docstrings using Daniel's comments to reduce: - Shortens some docstrings to be one-line or just description if it is self explanatory. - Remove explicit respecification of types of parameters and returns because this is already specified in the function annoations. However, some descriptions of the parameters and returns remain and some contain the type for context. Additionally, the types of public attributes of classes remain. - Remove any documentation of 'Return: None' - Remove docstrings of helper methods within other methods. --- tools/testing/kunit/kunit_json.py | 55 +- tools/testing/kunit/kunit_parser.py | 1056 ++++++++++++----- tools/testing/kunit/kunit_tool_test.py | 134 ++- .../test_is_test_passed-all_passed_nested.log | 34 + .../test_is_test_passed-kselftest.log | 14 + .../test_is_test_passed-missing_plan.log | 31 + .../kunit/test_data/test_strip_hyphen.log | 16 + 7 files changed, 951 insertions(+), 389 deletions(-) create mode 100644 tools/testing/kunit/test_data/test_is_test_passed-all_passed_nested.log create mode 100644 tools/testing/kunit/test_data/test_is_test_passed-kselftest.log create mode 100644 tools/testing/kunit/test_data/test_is_test_passed-missing_plan.log create mode 100644 tools/testing/kunit/test_data/test_strip_hyphen.log diff --git a/tools/testing/kunit/kunit_json.py b/tools/testing/kunit/kunit_json.py index f5cca5c38cac..e7317b4fad9d 100644 --- a/tools/testing/kunit/kunit_json.py +++ b/tools/testing/kunit/kunit_json.py @@ -11,47 +11,46 @@ import os import kunit_parser -from kunit_parser import TestStatus - -def get_json_result(test_result, def_config, build_dir, json_path) -> str: - sub_groups = [] - - # Each test suite is mapped to a KernelCI sub_group - for test_suite in test_result.suites: - sub_group = { - "name": test_suite.name, - "arch": "UM", - "defconfig": def_config, - "build_environment": build_dir, - "test_cases": [], - "lab_name": None, - "kernel": None, - "job": None, - "git_branch": "kselftest", - } - test_cases = [] - # TODO: Add attachments attribute in test_case with detailed - # failure message, see https://api.kernelci.org/schema-test-case.html#get - for case in test_suite.cases: - test_case = {"name": case.name, "status": "FAIL"} - if case.status == TestStatus.SUCCESS: +from kunit_parser import Test, TestResult, TestStatus +from typing import Any, Dict + +JsonObj = Dict[str, Any] + +def _get_group_json(test: Test, def_config: str, build_dir: str) -> JsonObj: + sub_groups = [] # List[JsonObj] + test_cases = [] # List[JsonObj] + + for subtest in test.subtests: + if len(subtest.subtests): + sub_group = _get_group_json(subtest, def_config, + build_dir) + sub_groups.append(sub_group) + else: + test_case = {"name": subtest.name, "status": "FAIL"} + if subtest.status == TestStatus.SUCCESS: test_case["status"] = "PASS" - elif case.status == TestStatus.TEST_CRASHED: + elif subtest.status == TestStatus.TEST_CRASHED: test_case["status"] = "ERROR" test_cases.append(test_case) - sub_group["test_cases"] = test_cases - sub_groups.append(sub_group) + test_group = { - "name": "KUnit Test Group", + "name": test.name, "arch": "UM", "defconfig": def_config, "build_environment": build_dir, "sub_groups": sub_groups, + "test_cases": test_cases, "lab_name": None, "kernel": None, "job": None, "git_branch": "kselftest", } + return test_group + +def get_json_result(test_result: TestResult, def_config: str, build_dir: str, + json_path: str) -> str: + test_group = _get_group_json(test_result.test, def_config, build_dir) + test_group["name"] = "KUnit Test Group" json_obj = json.dumps(test_group, indent=4) if json_path != 'stdout': with open(json_path, 'w') as result_path: diff --git a/tools/testing/kunit/kunit_parser.py b/tools/testing/kunit/kunit_parser.py index 6310a641b151..4b6086159c7f 100644 --- a/tools/testing/kunit/kunit_parser.py +++ b/tools/testing/kunit/kunit_parser.py @@ -1,11 +1,15 @@ # SPDX-License-Identifier: GPL-2.0 # -# Parses test results from a kernel dmesg log. +# Parses KTAP test results from a kernel dmesg log and incrementally prints +# results with reader-friendly format. Stores and returns test results in a +# Test object. # # Copyright (C) 2019, Google LLC. # Author: Felix Guo <felixguoxiuping(a)gmail.com> # Author: Brendan Higgins <brendanhiggins(a)google.com> +# Author: Rae Moar <rmoar(a)google.com> +from __future__ import annotations import re from collections import namedtuple @@ -14,33 +18,55 @@ from enum import Enum, auto from functools import reduce from typing import Iterable, Iterator, List, Optional, Tuple -TestResult = namedtuple('TestResult', ['status','suites','log']) - -class TestSuite(object): - def __init__(self) -> None: - self.status = TestStatus.SUCCESS - self.name = '' - self.cases = [] # type: List[TestCase] - - def __str__(self) -> str: - return 'TestSuite(' + str(self.status) + ',' + self.name + ',' + str(self.cases) + ')' - - def __repr__(self) -> str: - return str(self) - -class TestCase(object): +TestResult = namedtuple('TestResult', ['status','test','log']) + +class Test(object): + """ + A class to represent a test parsed from KTAP results. All KTAP + results within a test log are stored in a main Test object as + subtests. + + Attributes: + status : TestStatus - status of the test + name : str - name of the test + expected_count : int - expected number of subtests (0 if single + test case and None if unknown expected number of subtests) + subtests : List[Test] - list of subtests + log : List[str] - log of KTAP lines that correspond to the test + counts : TestCounts - counts of the test statuses and errors of + subtests or of the test itself if the test is a single + test case. + """ def __init__(self) -> None: + """Constructs the default attributes of a Test class object. + """ self.status = TestStatus.SUCCESS self.name = '' + self.expected_count = 0 # type: Optional[int] + self.subtests = [] # type: List[Test] self.log = [] # type: List[str] + self.counts = TestCounts() def __str__(self) -> str: - return 'TestCase(' + str(self.status) + ',' + self.name + ',' + str(self.log) + ')' + """Returns string representation of a Test class object.""" + return ('Test(' + str(self.status) + ', ' + self.name + + ', ' + str(self.expected_count) + ', ' + + str(self.subtests) + ', ' + str(self.log) + ', ' + + str(self.counts) + ')') def __repr__(self) -> str: + """Returns string representation of a Test class object.""" return str(self) + def add_error(self, error_message: str) -> None: + """Adds error to test object by incrementing the error count + and printing the error message. + """ + self.counts.errors += 1 + print_error('Test ' + self.name + ': ' + error_message) + class TestStatus(Enum): + """An enumeration class to represent the status of a test.""" SUCCESS = auto() FAILURE = auto() SKIPPED = auto() @@ -48,381 +74,769 @@ class TestStatus(Enum): NO_TESTS = auto() FAILURE_TO_PARSE_TESTS = auto() +class TestCounts: + """ + A class to represent the counts of statuses and test errors of + subtests or of the test itself if the test is a single test case with + no subtests. Note that the sum of the counts of passed, failed, + crashed, and skipped should sum to the total number of subtests for + the test. + + Attributes: + passed : int - the number of tests that have passed + failed : int - the number of tests that have failed + crashed : int - the number of tests that have crashed + skipped : int - the number of tests that have skipped + errors : int - the number of errors in the test and subtests + """ + def __init__(self): + """Contructs the default attributes of a TestCounts class + object. Sets the counts of all test statuses and test + errors to be 0. + """ + self.passed = 0 + self.failed = 0 + self.crashed = 0 + self.skipped = 0 + self.errors = 0 + + def __str__(self) -> str: + """Returns the string representation of a TestCounts object. + """ + return ('Passed: ' + str(self.passed) + + ', Failed: ' + str(self.failed) + + ', Crashed: ' + str(self.crashed) + + ', Skipped: ' + str(self.skipped) + + ', Errors: ' + str(self.errors)) + + def total(self) -> int: + """Returns total number of subtests or 1 if the test object + has no subtests to represent the test itself. This number is + calculated by the sum of the passed, failed, crashed, and + skipped subtests. + """ + return (self.passed + self.failed + self.crashed + + self.skipped) + + def add_subtest_counts(self, counts: TestCounts) -> None: + """ + Adds the counts of another TestCounts object to the current + TestCounts object. Used to add the counts of a subtest to the + parent test. + + Parameters: + counts - a different TestCounts object whose counts + will be added to the counts of the TestCounts object + """ + self.passed += counts.passed + self.failed += counts.failed + self.crashed += counts.crashed + self.skipped += counts.skipped + self.errors += counts.errors + + def get_status(self) -> TestStatus: + """Returns the expected status of a Test using test counts.""" + if self.crashed: + # If one of the subtests crash, the expected status + # of the Test is crashed. + return TestStatus.TEST_CRASHED + elif self.failed: + # Otherwise if one of the subtests fail, the + # expected status of the Test is failed. + return TestStatus.FAILURE + elif self.passed: + # Otherwise if one of the subtests pass, the + # expected status of the Test is passed. + return TestStatus.SUCCESS + else: + # Finally, if none of the subtests have failed, + # crashed, or passed, the expected status of the + # Test is skipped. + return TestStatus.SKIPPED + + def add_status(self, status: TestStatus) -> None: + """ + Given inputted status, increments corresponding attribute of + TestCounts object. + + Parameters: + status - status to be added to the TestCounts object + """ + if status == TestStatus.SUCCESS or \ + status == TestStatus.NO_TESTS: + # if status is NO_TESTS the most appropriate + # attribute to increment is passed because + # the test did not fail, crash or get skipped. + self.passed += 1 + elif status == TestStatus.FAILURE: + self.failed += 1 + elif status == TestStatus.SKIPPED: + self.skipped += 1 + else: + self.crashed += 1 + class LineStream: - """Provides a peek()/pop() interface over an iterator of (line#, text).""" + """ + A class to represent the lines of kernel output. + Provides a peek()/pop() interface over an iterator of + (line#, text). + """ _lines: Iterator[Tuple[int, str]] _next: Tuple[int, str] _done: bool def __init__(self, lines: Iterator[Tuple[int, str]]): + """Set defaults for LineStream object and sets _lines + attribute to lines parameter. + """ self._lines = lines self._done = False self._next = (0, '') self._get_next() def _get_next(self) -> None: + """Advances the LineSteam to the next line or sets the _done + attribute if the LineStream has reached the end of the lines. + """ try: self._next = next(self._lines) except StopIteration: self._done = True def peek(self) -> str: + """Returns the next line in the LineStream without advancing + the LineStream. + """ return self._next[1] def pop(self) -> str: + """Returns the next line in the LineStream and advances the + LineStream to the next line. + """ n = self._next self._get_next() return n[1] def __bool__(self) -> bool: + """Returns whether the LineStream has reached the end of the + lines. + """ return not self._done # Only used by kunit_tool_test.py. def __iter__(self) -> Iterator[str]: + """Empties all lines stored in LineStream object into + Iterator object and returns the Iterator object. + """ while bool(self): yield self.pop() def line_number(self) -> int: + """Returns the line number of the next line in the + LineStream. + """ return self._next[0] -kunit_start_re = re.compile(r'TAP version [0-9]+$') -kunit_end_re = re.compile('(List of all partitions:|' - 'Kernel panic - not syncing: VFS:|reboot: System halted)') +# Parsing helper methods: + +KTAP_START = re.compile(r'KTAP version ([0-9]+)$') +TAP_START = re.compile(r'TAP version ([0-9]+)$') +KTAP_END = re.compile('(List of all partitions:|' + 'Kernel panic - not syncing: VFS:|reboot: System halted)') def extract_tap_lines(kernel_output: Iterable[str]) -> LineStream: - def isolate_kunit_output(kernel_output: Iterable[str]) -> Iterator[Tuple[int, str]]: + """Extracts KTAP lines from inputted kernel output in LineStream + object.""" + def isolate_ktap_output(kernel_output: Iterable[str]) \ + -> Iterator[Tuple[int, str]]: line_num = 0 started = False for line in kernel_output: line_num += 1 - line = line.rstrip() # line always has a trailing \n - if kunit_start_re.search(line): + line = line.rstrip() # remove trailing \n + if not started and KTAP_START.search(line): + # start extracting KTAP lines and set prefix + # to number of characters before version line + prefix_len = len( + line.split('KTAP version')[0]) + started = True + yield line_num, line[prefix_len:] + elif not started and TAP_START.search(line): + # start extracting KTAP lines and set prefix + # to number of characters before version line prefix_len = len(line.split('TAP version')[0]) started = True yield line_num, line[prefix_len:] - elif kunit_end_re.search(line): + elif started and KTAP_END.search(line): + # stop extracting KTAP lines break elif started: - yield line_num, line[prefix_len:] - return LineStream(lines=isolate_kunit_output(kernel_output)) - -DIVIDER = '=' * 60 - -RESET = '\033[0;0m' - -def red(text) -> str: - return '\033[1;31m' + text + RESET - -def yellow(text) -> str: - return '\033[1;33m' + text + RESET - -def green(text) -> str: - return '\033[1;32m' + text + RESET - -def print_with_timestamp(message) -> None: - print('[%s] %s' % (datetime.now().strftime('%H:%M:%S'), message)) - -def format_suite_divider(message) -> str: - return '======== ' + message + ' ========' - -def print_suite_divider(message) -> None: - print_with_timestamp(DIVIDER) - print_with_timestamp(format_suite_divider(message)) - -def print_log(log) -> None: - for m in log: - print_with_timestamp(m) - -TAP_ENTRIES = re.compile(r'^(TAP|[\s]*ok|[\s]*not ok|[\s]*[0-9]+\.\.[0-9]+|[\s]*# (Subtest:|.*: kunit test case crashed!)).*$') - -def consume_non_diagnostic(lines: LineStream) -> None: - while lines and not TAP_ENTRIES.match(lines.peek()): - lines.pop() - -def save_non_diagnostic(lines: LineStream, test_case: TestCase) -> None: - while lines and not TAP_ENTRIES.match(lines.peek()): - test_case.log.append(lines.peek()) - lines.pop() - -OkNotOkResult = namedtuple('OkNotOkResult', ['is_ok','description', 'text']) - -OK_NOT_OK_SKIP = re.compile(r'^[\s]*(ok|not ok) [0-9]+ - (.*) # SKIP(.*)$') - -OK_NOT_OK_SUBTEST = re.compile(r'^[\s]+(ok|not ok) [0-9]+ - (.*)$') - -OK_NOT_OK_MODULE = re.compile(r'^(ok|not ok) ([0-9]+) - (.*)$') - -def parse_ok_not_ok_test_case(lines: LineStream, test_case: TestCase) -> bool: - save_non_diagnostic(lines, test_case) - if not lines: - test_case.status = TestStatus.TEST_CRASHED - return True - line = lines.peek() - match = OK_NOT_OK_SUBTEST.match(line) - while not match and lines: - line = lines.pop() - match = OK_NOT_OK_SUBTEST.match(line) - if match: - test_case.log.append(lines.pop()) - test_case.name = match.group(2) - skip_match = OK_NOT_OK_SKIP.match(line) - if skip_match: - test_case.status = TestStatus.SKIPPED - return True - if test_case.status == TestStatus.TEST_CRASHED: - return True - if match.group(1) == 'ok': - test_case.status = TestStatus.SUCCESS - else: - test_case.status = TestStatus.FAILURE - return True + # remove prefix and any indention and yield + # line with line number + line = line[prefix_len:].lstrip() + yield line_num, line + return LineStream(lines=isolate_ktap_output(kernel_output)) + +def raw_output(kernel_output: Iterable[str]) -> None: + """Prints all lines of kernel output.""" + for line in kernel_output: + print(line.rstrip()) + +KTAP_VERSIONS = [1] +TAP_VERSIONS = [13, 14] + +def check_version(version_num: int, accepted_versions: List[int], + version_type: str, test: Test) -> None: + """ + Adds error to test object if version number is too high or too + low. + + Parameters: + version_num - The inputted version number from the parsed KTAP or TAP + header line + accepted_version - List of accepted KTAP or TAP versions + version_type - 'KTAP' or 'TAP' depending on the type of + version line. + test - Test object for current test being parsed + """ + if version_num < min(accepted_versions): + test.add_error(version_type + + ' version lower than expected!') + elif version_num > max(accepted_versions): + test.add_error( + version_type + ' version higher than expected!') + +def parse_ktap_header(lines: LineStream, test: Test) -> bool: + """ + If the next line in LineStream matches the format of KTAP or TAP + header line, the version number is checked, the line is popped, + and returns True. Otherwise the method returns False. + + Accepted formats: + - 'KTAP version [version number]' + - 'TAP version [version number]' + + Parameters: + lines - LineStream of KTAP output to parse + test - Test object for current test being parsed + + Return: + Boolean that represents if the next line in the LineStream was parsed + as the KTAP or TAP header line + """ + ktap_match = KTAP_START.match(lines.peek()) + tap_match = TAP_START.match(lines.peek()) + if ktap_match: + version_num = int(ktap_match.group(1)) + check_version(version_num, KTAP_VERSIONS, 'KTAP', test) + elif tap_match: + version_num = int(tap_match.group(1)) + check_version(version_num, TAP_VERSIONS, 'TAP', test) else: return False - -SUBTEST_DIAGNOSTIC = re.compile(r'^[\s]+# (.*)$') -DIAGNOSTIC_CRASH_MESSAGE = re.compile(r'^[\s]+# .*?: kunit test case crashed!$') - -def parse_diagnostic(lines: LineStream, test_case: TestCase) -> bool: - save_non_diagnostic(lines, test_case) - if not lines: + test.log.append(lines.pop()) + return True + +TEST_HEADER = re.compile(r'^# Subtest: (.*)$') + +def parse_test_header(lines: LineStream, test: Test) -> bool: + """ + If the next line in LineStream matches the format of a test + header line, the name of test is set, the line is popped, + and returns True. Otherwise the method returns False. + + Accepted format: + - '# Subtest: [test name]' + + Parameters: + lines - LineStream of ktap output to parse + test - Test object for current test being parsed + + Return: + Boolean that represents if the next line in the LineStream was parsed + as a test header + """ + match = TEST_HEADER.match(lines.peek()) + if not match: return False + test.log.append(lines.pop()) + test.name = match.group(1) + return True + +TEST_PLAN = re.compile(r'1\.\.([0-9]+)') + +def parse_test_plan(lines: LineStream, test: Test) -> bool: + """ + If the next line in LineStream matches the format of a test + plan line, the expected number of subtests is set in test object, an + error is thrown if there are 0 tests, the line is popped, + and returns True. Otherwise the method adds an error that the test + plan is missing to the test object and returns False. + + Accepted format: + - '1..[number of subtests]' + + Parameters: + lines - LineStream of ktap output to parse + test - Test object for current test being parsed + + Return: + Boolean that represents if the next line in the LineStream was parsed + as a test plan + """ + match = TEST_PLAN.match(lines.peek()) + if not match: + test.expected_count = None + test.add_error('missing plan line!') + return False + test.log.append(lines.pop()) + expected_count = int(match.group(1)) + test.expected_count = expected_count + if expected_count == 0: + test.status = TestStatus.NO_TESTS + test.add_error('0 tests run!') + return True + +TEST_RESULT = re.compile(r'^(ok|not ok) ([0-9]+) (- )?(.*)$') + +TEST_RESULT_SKIP = re.compile(r'^(ok|not ok) ([0-9]+) (- )?(.*) # SKIP(.*)$') + +def peek_test_name_match(lines: LineStream, test: Test) -> bool: + """ + If the next line in LineStream matches the format of a test + result line and the name of the result line matches the name of the + current test, the method returns True. Otherwise it returns False. + + Accepted format: + - '[ok|not ok] [test number] [-] [test name] [optional skip + directive]' + + Parameters: + lines - LineStream of KTAP output to parse + test - Test object for current test being parsed + + Return: + Boolean that represents if the next line in the LineStream matched a + test result line and the name matched the expected test name + """ line = lines.peek() - match = SUBTEST_DIAGNOSTIC.match(line) - if match: - test_case.log.append(lines.pop()) - crash_match = DIAGNOSTIC_CRASH_MESSAGE.match(line) - if crash_match: - test_case.status = TestStatus.TEST_CRASHED - return True - else: + match = TEST_RESULT.match(line) + if not match: return False + name = match.group(4) + return (name == test.name) + +def parse_test_result(lines: LineStream, test: Test, + expected_num: int) -> bool: + """ + If the next line in LineStream matches the format of a test + result line, the status in the result line is added to the test + object, the test number is checked to match the expected test number + and if not an error is added to the test object, and returns True. + Otherwise it returns False. + + Note that the skip diirective is the only + directive that causes a change in status and otherwise the directive + is included in the name of the test. + + Accepted format: + - '[ok|not ok] [test number] [-] [test name] [optional skip + directive]' + + Parameters: + lines - LineStream of KTAP output to parse + test - Test object for current test being parsed + expected_num - expected test number for current test + + Return: + Boolean that represents if the next line in the LineStream was parsed + as a test result line. + """ + line = lines.peek() + match = TEST_RESULT.match(line) + skip_match = TEST_RESULT_SKIP.match(line) -def parse_test_case(lines: LineStream) -> Optional[TestCase]: - test_case = TestCase() - save_non_diagnostic(lines, test_case) - while parse_diagnostic(lines, test_case): - pass - if parse_ok_not_ok_test_case(lines, test_case): - return test_case - else: - return None - -SUBTEST_HEADER = re.compile(r'^[\s]+# Subtest: (.*)$') + # Check if line matches test result line format + if not match: + return False + test.log.append(lines.pop()) -def parse_subtest_header(lines: LineStream) -> Optional[str]: - consume_non_diagnostic(lines) - if not lines: - return None - match = SUBTEST_HEADER.match(lines.peek()) - if match: - lines.pop() - return match.group(1) + # Set name of test object + if skip_match: + test.name = skip_match.group(4) else: - return None + test.name = match.group(4) -SUBTEST_PLAN = re.compile(r'[\s]+[0-9]+\.\.([0-9]+)') + # Check test num + num = int(match.group(2)) + if num != expected_num: + test.add_error('Expected test number ' + + str(expected_num) + ' but found ' + str(num)) -def parse_subtest_plan(lines: LineStream) -> Optional[int]: - consume_non_diagnostic(lines) - match = SUBTEST_PLAN.match(lines.peek()) - if match: - lines.pop() - return int(match.group(1)) - else: - return None - -def max_status(left: TestStatus, right: TestStatus) -> TestStatus: - if left == right: - return left - elif left == TestStatus.TEST_CRASHED or right == TestStatus.TEST_CRASHED: - return TestStatus.TEST_CRASHED - elif left == TestStatus.FAILURE or right == TestStatus.FAILURE: - return TestStatus.FAILURE - elif left == TestStatus.SKIPPED: - return right - else: - return left - -def parse_ok_not_ok_test_suite(lines: LineStream, - test_suite: TestSuite, - expected_suite_index: int) -> bool: - consume_non_diagnostic(lines) - if not lines: - test_suite.status = TestStatus.TEST_CRASHED - return False - line = lines.peek() - match = OK_NOT_OK_MODULE.match(line) - if match: - lines.pop() - if match.group(1) == 'ok': - test_suite.status = TestStatus.SUCCESS - else: - test_suite.status = TestStatus.FAILURE - skip_match = OK_NOT_OK_SKIP.match(line) - if skip_match: - test_suite.status = TestStatus.SKIPPED - suite_index = int(match.group(2)) - if suite_index != expected_suite_index: - print_with_timestamp( - red('[ERROR] ') + 'expected_suite_index ' + - str(expected_suite_index) + ', but got ' + - str(suite_index)) + # Set status of test object + status = match.group(1) + if test.status == TestStatus.TEST_CRASHED: return True + elif skip_match: + test.status = TestStatus.SKIPPED + elif status == 'ok': + test.status = TestStatus.SUCCESS else: - return False - -def bubble_up_errors(status_list: Iterable[TestStatus]) -> TestStatus: - return reduce(max_status, status_list, TestStatus.SKIPPED) + test.status = TestStatus.FAILURE + return True + +def parse_diagnostic(lines: LineStream) -> List[str]: + """ + If the next line in LineStream does not match the format of a test + case line or test header line, the line is checked if the test has + crashed and if so adds an error message, pops the line and adds it to + the log. + + Line formats that are not parsed: + - '# Subtest: [test name]' + - '[ok|not ok] [test number] [-] [test name] [optional skip + directive]' + + Parameters: + lines - LineStream of KTAP output to parse + + Return: + Log of diagnostic lines + """ + log = [] # type: List[str] + while lines and not TEST_RESULT.match(lines.peek()) and not \ + TEST_HEADER.match(lines.peek()): + log.append(lines.pop()) + return log + +DIAGNOSTIC_CRASH_MESSAGE = re.compile(r'^# .*?: kunit test case crashed!$') + +def parse_crash_in_log(test: Test) -> bool: + """ + Iterate through the lines of the log to parse for crash message. + If crash message found, set status to crashed and return True. + Otherwise return False. + + Parameters: + test - Test object for current test being parsed + + Return: + Boolean that represents if crash message found in log + """ + for line in test.log: + if DIAGNOSTIC_CRASH_MESSAGE.match(line): + test.status = TestStatus.TEST_CRASHED + return True + return False -def bubble_up_test_case_errors(test_suite: TestSuite) -> TestStatus: - max_test_case_status = bubble_up_errors(x.status for x in test_suite.cases) - return max_status(max_test_case_status, test_suite.status) +# Printing helper methods: -def parse_test_suite(lines: LineStream, expected_suite_index: int) -> Optional[TestSuite]: - if not lines: - return None - consume_non_diagnostic(lines) - test_suite = TestSuite() - test_suite.status = TestStatus.SUCCESS - name = parse_subtest_header(lines) - if not name: - return None - test_suite.name = name - expected_test_case_num = parse_subtest_plan(lines) - if expected_test_case_num is None: - return None - while expected_test_case_num > 0: - test_case = parse_test_case(lines) - if not test_case: - break - test_suite.cases.append(test_case) - expected_test_case_num -= 1 - if parse_ok_not_ok_test_suite(lines, test_suite, expected_suite_index): - test_suite.status = bubble_up_test_case_errors(test_suite) - return test_suite - elif not lines: - print_with_timestamp(red('[ERROR] ') + 'ran out of lines before end token') - return test_suite - else: - print(f'failed to parse end of suite "{name}", at line {lines.line_number()}: {lines.peek()}') - return None +DIVIDER = '=' * 60 -TAP_HEADER = re.compile(r'^TAP version 14$') +RESET = '\033[0;0m' -def parse_tap_header(lines: LineStream) -> bool: - consume_non_diagnostic(lines) - if TAP_HEADER.match(lines.peek()): - lines.pop() - return True - else: - return False +def red(text: str) -> str: + """Returns inputted string with red color code.""" + return '\033[1;31m' + text + RESET -TEST_PLAN = re.compile(r'[0-9]+\.\.([0-9]+)') +def yellow(text: str) -> str: + """Returns inputted string with yellow color code.""" + return '\033[1;33m' + text + RESET -def parse_test_plan(lines: LineStream) -> Optional[int]: - consume_non_diagnostic(lines) - match = TEST_PLAN.match(lines.peek()) - if match: - lines.pop() - return int(match.group(1)) - else: - return None - -def bubble_up_suite_errors(test_suites: Iterable[TestSuite]) -> TestStatus: - return bubble_up_errors(x.status for x in test_suites) - -def parse_test_result(lines: LineStream) -> TestResult: - consume_non_diagnostic(lines) - if not lines or not parse_tap_header(lines): - return TestResult(TestStatus.FAILURE_TO_PARSE_TESTS, [], lines) - expected_test_suite_num = parse_test_plan(lines) - if expected_test_suite_num == 0: - return TestResult(TestStatus.NO_TESTS, [], lines) - elif expected_test_suite_num is None: - return TestResult(TestStatus.FAILURE_TO_PARSE_TESTS, [], lines) - test_suites = [] - for i in range(1, expected_test_suite_num + 1): - test_suite = parse_test_suite(lines, i) - if test_suite: - test_suites.append(test_suite) - else: - print_with_timestamp( - red('[ERROR] ') + ' expected ' + - str(expected_test_suite_num) + - ' test suites, but got ' + str(i - 2)) - break - test_suite = parse_test_suite(lines, -1) - if test_suite: - print_with_timestamp(red('[ERROR] ') + - 'got unexpected test suite: ' + test_suite.name) - if test_suites: - return TestResult(bubble_up_suite_errors(test_suites), test_suites, lines) - else: - return TestResult(TestStatus.NO_TESTS, [], lines) +def green(text: str) -> str: + """Returns inputted string with green color code.""" + return '\033[1;32m' + text + RESET -class TestCounts: - passed: int - failed: int - crashed: int - skipped: int +ANSI_LEN = len(red('')) - def __init__(self): - self.passed = 0 - self.failed = 0 - self.crashed = 0 - self.skipped = 0 +def print_with_timestamp(message: str) -> None: + """Prints message with timestamp at beginning.""" + print('[%s] %s' % (datetime.now().strftime('%H:%M:%S'), message)) - def total(self) -> int: - return self.passed + self.failed + self.crashed + self.skipped - -def print_and_count_results(test_result: TestResult) -> TestCounts: - counts = TestCounts() - for test_suite in test_result.suites: - if test_suite.status == TestStatus.SUCCESS: - print_suite_divider(green('[PASSED] ') + test_suite.name) - elif test_suite.status == TestStatus.SKIPPED: - print_suite_divider(yellow('[SKIPPED] ') + test_suite.name) - elif test_suite.status == TestStatus.TEST_CRASHED: - print_suite_divider(red('[CRASHED] ' + test_suite.name)) +def format_test_divider(message: str, len_message: int) -> str: + """ + Returns string with message centered in fixed width divider. + + Example: + '===================== message example =====================' + + Parameters: + message - message to be centered in divider line + len_message - length of the message to be printed such that + any characters of the color codes are not counted + + Return: + String containing message centered in fixed width divider + """ + default_count = 3 # default number of dashes + len_1 = default_count + len_2 = default_count + difference = len(DIVIDER) - len_message - 2 # 2 spaces added + if difference > 0: + # calculate number of dashes for each side of the divider + len_1 = int(difference / 2) + len_2 = difference - len_1 + return ('=' * len_1) + ' ' + message + ' ' + ('=' * len_2) + +def print_test_header(test: Test) -> None: + """ + Prints test header with test name and optionally the expected number + of subtests. + + Example: + '=================== example (2 subtests) ===================' + + Parameters: + test - Test object representing current test being printed + """ + message = test.name + if test.expected_count: + message += ' (' + str(test.expected_count) + ' subtests)' + print_with_timestamp(format_test_divider(message, len(message))) + +def print_log(log: Iterable[str]) -> None: + """ + Prints all strings in saved log for test in yellow. + + Parameters: + log - Iterable object with all strings saved in log for test + """ + for m in log: + print_with_timestamp(yellow(m)) + print_with_timestamp('') + +def format_test_result(test: Test) -> str: + """ + Returns string with formatted test result with colored status and test + name. + + Example: + '[PASSED] example' + + Parameters: + test - Test object representing current test being printed + + Return: + String containing formatted test result + """ + if test.status == TestStatus.SUCCESS: + return (green('[PASSED] ') + test.name) + elif test.status == TestStatus.SKIPPED: + return (yellow('[SKIPPED] ') + test.name) + elif test.status == TestStatus.TEST_CRASHED: + print_log(test.log) + return (red('[CRASHED] ') + test.name) + else: + print_log(test.log) + return (red('[FAILED] ') + test.name) + +def print_test_result(test: Test) -> None: + """ + Prints result line with status of test. + + Example: + '[PASSED] example' + + Parameters: + test - Test object representing current test being printed + """ + print_with_timestamp(format_test_result(test)) + +def print_test_footer(test: Test) -> None: + """ + Prints test footer with status of test. + + Example: + '===================== [PASSED] example =====================' + + Parameters: + test - Test object representing current test being printed + """ + message = format_test_result(test) + print_with_timestamp(format_test_divider(message, + len(message) - ANSI_LEN)) + +def print_summary_line(test: Test) -> None: + """ + Prints summary line of test object. Color of line is dependent on + status of test. Color is green if test passes, yellow if test is + skipped, and red if the test fails or crashes. Summary line contains + counts of the statuses of the tests subtests or the test itself if it + has no subtests. + + Example: + "Testing complete. Passed: 2, Failed: 0, Crashed: 0, Skipped: 0, + Errors: 0" + + test - Test object representing current test being printed + """ + if test.status == TestStatus.SUCCESS or \ + test.status == TestStatus.NO_TESTS: + color = green + elif test.status == TestStatus.SKIPPED: + color = yellow + else: + color = red + counts = test.counts + print_with_timestamp(color('Testing complete. ' + str(counts))) + +def print_error(error_message: str) -> None: + """ + Prints error message with error format. + + Example: + "[ERROR] Test example: missing test plan!" + + Parameters: + error_message - message describing error + """ + print_with_timestamp(red('[ERROR] ') + error_message) + +# Other methods: + +def bubble_up_test_results(test: Test) -> None: + """ + If the test has subtests, add the test counts of the subtests to the + test and check if any of the tests crashed and if so set the test + status to crashed. Otherwise if the test has no subtests add the + status of the test to the test counts. + + Parameters: + test - Test object for current test being parsed + """ + parse_crash_in_log(test) + subtests = test.subtests + counts = test.counts + status = test.status + for t in subtests: + counts.add_subtest_counts(t.counts) + if counts.total() == 0: + counts.add_status(status) + elif test.counts.get_status() == TestStatus.TEST_CRASHED: + test.status = TestStatus.TEST_CRASHED + +def parse_test(lines: LineStream, expected_num: int, log: List[str]) -> Test: + """ + Finds next test to parse in LineStream, creates new Test object, + parses any subtests of the test, populates Test object with all + information (status, name) about the test and the Test objects for + any subtests, and then returns the Test object. The method accepts + three formats of tests: + + Accepted test formats: + + - Main KTAP/TAP header + + Example: + + KTAP version 1 + 1..4 + [subtests] + + - Subtest header line + + Example: + + # Subtest: name + 1..3 + [subtests] + ok 1 name + + - Test result line + + Example: + + ok 1 - test + + Parameters: + lines - LineStream of KTAP output to parse + expected_num - expected test number for test to be parsed + log - list of strings containing any preceding diagnostic lines + corresponding to the current test + + Return: + Test object populated with characteristics and any subtests + """ + test = Test() + test.log.extend(log) + parent_test = False + main = parse_ktap_header(lines, test) + if main: + # If KTAP/TAP header is found, attempt to parse + # test plan + test.name = "main" + parse_test_plan(lines, test) + else: + # If KTAP/TAP header is not found, test must be subtest + # header or test result line so parse attempt to parser + # subtest header + parent_test = parse_test_header(lines, test) + if parent_test: + # If subtest header is found, attempt to parse + # test plan and print header + parse_test_plan(lines, test) + print_test_header(test) + expected_count = test.expected_count + subtests = [] + test_num = 1 + while main or expected_count is None or test_num <= expected_count: + # Loop to parse any subtests. + # If test is main test, do not break until no lines left. + # Otherwise, break after parsing expected number of tests or + # if expected number of tests is unknown break when found + # test result line with matching name to subtest header. + if not lines: + if expected_count and test_num <= expected_count: + test.add_error('missing expected subtests!') + break + sub_log = parse_diagnostic(lines) + if not expected_count and not main and \ + peek_test_name_match(lines, test): + test.log.extend(sub_log) + break + subtests.append(parse_test(lines, test_num, sub_log)) + test_num += 1 + test.subtests = subtests + if not main: + # If not main test, look for test result line + test.log.extend(parse_diagnostic(lines)) + if (parent_test and peek_test_name_match(lines, test)) or \ + not parent_test: + parse_test_result(lines, test, expected_num) else: - print_suite_divider(red('[FAILED] ') + test_suite.name) - for test_case in test_suite.cases: - if test_case.status == TestStatus.SUCCESS: - counts.passed += 1 - print_with_timestamp(green('[PASSED] ') + test_case.name) - elif test_case.status == TestStatus.SKIPPED: - counts.skipped += 1 - print_with_timestamp(yellow('[SKIPPED] ') + test_case.name) - elif test_case.status == TestStatus.TEST_CRASHED: - counts.crashed += 1 - print_with_timestamp(red('[CRASHED] ' + test_case.name)) - print_log(map(yellow, test_case.log)) - print_with_timestamp('') - else: - counts.failed += 1 - print_with_timestamp(red('[FAILED] ') + test_case.name) - print_log(map(yellow, test_case.log)) - print_with_timestamp('') - return counts + test.add_error('missing subtest result line!') + # Add statuses to TestCounts attribute in Test object + bubble_up_test_results(test) + if parent_test: + # If test has subtests and is not the main test object, print + # footer. + print_test_footer(test) + elif not main: + print_test_result(test) + return test def parse_run_tests(kernel_output: Iterable[str]) -> TestResult: - counts = TestCounts() + """ + Using kernel output, extract KTAP lines, parse the lines for test + results and print condensed test results and summary line . + + Parameters: + kernel_output - Iterable object contains lines of kernel output + + Return: + TestResult - Tuple containg status of main test object, main test + object with all subtests, and log of all KTAP lines. + """ + print_with_timestamp(DIVIDER) lines = extract_tap_lines(kernel_output) - test_result = parse_test_result(lines) - if test_result.status == TestStatus.NO_TESTS: - print(red('[ERROR] ') + yellow('no tests run!')) - elif test_result.status == TestStatus.FAILURE_TO_PARSE_TESTS: - print(red('[ERROR] ') + yellow('could not parse test results!')) + test = Test() + if not lines: + test.add_error('invalid KTAP input!') + test.status = TestStatus.FAILURE_TO_PARSE_TESTS else: - counts = print_and_count_results(test_result) + test = parse_test(lines, 0, []) + if test.status != TestStatus.NO_TESTS: + test.status = test.counts.get_status() print_with_timestamp(DIVIDER) - if test_result.status == TestStatus.SUCCESS: - fmt = green - elif test_result.status == TestStatus.SKIPPED: - fmt = yellow - else: - fmt =red - print_with_timestamp( - fmt('Testing complete. %d tests run. %d failed. %d crashed. %d skipped.' % - (counts.total(), counts.failed, counts.crashed, counts.skipped))) - return test_result + print_summary_line(test) + return TestResult(test.status, test, lines) diff --git a/tools/testing/kunit/kunit_tool_test.py b/tools/testing/kunit/kunit_tool_test.py index 619c4554cbff..e527b90de8ea 100755 --- a/tools/testing/kunit/kunit_tool_test.py +++ b/tools/testing/kunit/kunit_tool_test.py @@ -106,10 +106,10 @@ class KUnitParserTest(unittest.TestCase): with open(log_path) as file: result = kunit_parser.extract_tap_lines(file.readlines()) self.assertContains('TAP version 14', result) - self.assertContains(' # Subtest: example', result) - self.assertContains(' 1..2', result) - self.assertContains(' ok 1 - example_simple_test', result) - self.assertContains(' ok 2 - example_mock_test', result) + self.assertContains('# Subtest: example', result) + self.assertContains('1..2', result) + self.assertContains('ok 1 - example_simple_test', result) + self.assertContains('ok 2 - example_mock_test', result) self.assertContains('ok 1 - example', result) def test_output_with_prefix_isolated_correctly(self): @@ -117,28 +117,28 @@ class KUnitParserTest(unittest.TestCase): with open(log_path) as file: result = kunit_parser.extract_tap_lines(file.readlines()) self.assertContains('TAP version 14', result) - self.assertContains(' # Subtest: kunit-resource-test', result) - self.assertContains(' 1..5', result) - self.assertContains(' ok 1 - kunit_resource_test_init_resources', result) - self.assertContains(' ok 2 - kunit_resource_test_alloc_resource', result) - self.assertContains(' ok 3 - kunit_resource_test_destroy_resource', result) - self.assertContains(' foo bar #', result) - self.assertContains(' ok 4 - kunit_resource_test_cleanup_resources', result) - self.assertContains(' ok 5 - kunit_resource_test_proper_free_ordering', result) + self.assertContains('# Subtest: kunit-resource-test', result) + self.assertContains('1..5', result) + self.assertContains('ok 1 - kunit_resource_test_init_resources', result) + self.assertContains('ok 2 - kunit_resource_test_alloc_resource', result) + self.assertContains('ok 3 - kunit_resource_test_destroy_resource', result) + self.assertContains('foo bar #', result) + self.assertContains('ok 4 - kunit_resource_test_cleanup_resources', result) + self.assertContains('ok 5 - kunit_resource_test_proper_free_ordering', result) self.assertContains('ok 1 - kunit-resource-test', result) - self.assertContains(' foo bar # non-kunit output', result) - self.assertContains(' # Subtest: kunit-try-catch-test', result) - self.assertContains(' 1..2', result) - self.assertContains(' ok 1 - kunit_test_try_catch_successful_try_no_catch', + self.assertContains('foo bar # non-kunit output', result) + self.assertContains('# Subtest: kunit-try-catch-test', result) + self.assertContains('1..2', result) + self.assertContains('ok 1 - kunit_test_try_catch_successful_try_no_catch', result) - self.assertContains(' ok 2 - kunit_test_try_catch_unsuccessful_try_does_catch', + self.assertContains('ok 2 - kunit_test_try_catch_unsuccessful_try_does_catch', result) self.assertContains('ok 2 - kunit-try-catch-test', result) - self.assertContains(' # Subtest: string-stream-test', result) - self.assertContains(' 1..3', result) - self.assertContains(' ok 1 - string_stream_test_empty_on_creation', result) - self.assertContains(' ok 2 - string_stream_test_not_empty_after_add', result) - self.assertContains(' ok 3 - string_stream_test_get_string', result) + self.assertContains('# Subtest: string-stream-test', result) + self.assertContains('1..3', result) + self.assertContains('ok 1 - string_stream_test_empty_on_creation', result) + self.assertContains('ok 2 - string_stream_test_not_empty_after_add', result) + self.assertContains('ok 3 - string_stream_test_get_string', result) self.assertContains('ok 3 - string-stream-test', result) def test_parse_successful_test_log(self): @@ -148,6 +148,13 @@ class KUnitParserTest(unittest.TestCase): self.assertEqual( kunit_parser.TestStatus.SUCCESS, result.status) + def test_parse_successful_nested_tests_log(self): + all_passed_log = test_data_path('test_is_test_passed-all_passed_nested.log') + with open(all_passed_log) as file: + result = kunit_parser.parse_run_tests(file.readlines()) + self.assertEqual( + kunit_parser.TestStatus.SUCCESS, + result.status) def test_parse_failed_test_log(self): failed_log = test_data_path('test_is_test_passed-failure.log') @@ -162,17 +169,31 @@ class KUnitParserTest(unittest.TestCase): with open(empty_log) as file: result = kunit_parser.parse_run_tests( kunit_parser.extract_tap_lines(file.readlines())) - self.assertEqual(0, len(result.suites)) + self.assertEqual(0, len(result.test.subtests)) self.assertEqual( kunit_parser.TestStatus.FAILURE_TO_PARSE_TESTS, result.status) + def test_missing_test_plan(self): + missing_plan_log = test_data_path('test_is_test_passed-' + 'missing_plan.log') + with open(missing_plan_log) as file: + result = kunit_parser.parse_run_tests( + kunit_parser.extract_tap_lines( + file.readlines())) + self.assertEqual(2, result.test.counts.errors) + self.assertEqual( + kunit_parser.TestStatus.SUCCESS, + result.status) + def test_no_tests(self): - empty_log = test_data_path('test_is_test_passed-no_tests_run_with_header.log') - with open(empty_log) as file: + header_log = test_data_path('test_is_test_passed-' + 'no_tests_run_with_header.log') + with open(header_log) as file: result = kunit_parser.parse_run_tests( - kunit_parser.extract_tap_lines(file.readlines())) - self.assertEqual(0, len(result.suites)) + kunit_parser.extract_tap_lines( + file.readlines())) + self.assertEqual(0, len(result.test.subtests)) self.assertEqual( kunit_parser.TestStatus.NO_TESTS, result.status) @@ -182,15 +203,17 @@ class KUnitParserTest(unittest.TestCase): print_mock = mock.patch('builtins.print').start() with open(crash_log) as file: result = kunit_parser.parse_run_tests( - kunit_parser.extract_tap_lines(file.readlines())) - print_mock.assert_any_call(StrContains('could not parse test results!')) + kunit_parser.extract_tap_lines( + file.readlines())) + print_mock.assert_any_call(StrContains('invalid KTAP input!')) print_mock.stop() file.close() def test_crashed_test(self): crashed_log = test_data_path('test_is_test_passed-crash.log') with open(crashed_log) as file: - result = kunit_parser.parse_run_tests(file.readlines()) + result = kunit_parser.parse_run_tests( + file.readlines()) self.assertEqual( kunit_parser.TestStatus.TEST_CRASHED, result.status) @@ -216,6 +239,23 @@ class KUnitParserTest(unittest.TestCase): result.status) file.close() + def test_ignores_hyphen(self): + hyphen_log = test_data_path('test_strip_hyphen.log') + file = open(hyphen_log) + result = kunit_parser.parse_run_tests(file.readlines()) + + # A skipped test does not fail the whole suite. + self.assertEqual( + kunit_parser.TestStatus.SUCCESS, + result.status) + self.assertEqual( + "sysctl_test", + result.test.subtests[0].name) + self.assertEqual( + "example", + result.test.subtests[1].name) + file.close() + def test_ignores_prefix_printk_time(self): prefix_log = test_data_path('test_config_printk_time.log') @@ -224,7 +264,7 @@ class KUnitParserTest(unittest.TestCase): self.assertEqual( kunit_parser.TestStatus.SUCCESS, result.status) - self.assertEqual('kunit-resource-test', result.suites[0].name) + self.assertEqual('kunit-resource-test', result.test.subtests[0].name) def test_ignores_multiple_prefixes(self): prefix_log = test_data_path('test_multiple_prefixes.log') @@ -233,7 +273,7 @@ class KUnitParserTest(unittest.TestCase): self.assertEqual( kunit_parser.TestStatus.SUCCESS, result.status) - self.assertEqual('kunit-resource-test', result.suites[0].name) + self.assertEqual('kunit-resource-test', result.test.subtests[0].name) def test_prefix_mixed_kernel_output(self): mixed_prefix_log = test_data_path('test_interrupted_tap_output.log') @@ -242,7 +282,7 @@ class KUnitParserTest(unittest.TestCase): self.assertEqual( kunit_parser.TestStatus.SUCCESS, result.status) - self.assertEqual('kunit-resource-test', result.suites[0].name) + self.assertEqual('kunit-resource-test', result.test.subtests[0].name) def test_prefix_poundsign(self): pound_log = test_data_path('test_pound_sign.log') @@ -251,16 +291,16 @@ class KUnitParserTest(unittest.TestCase): self.assertEqual( kunit_parser.TestStatus.SUCCESS, result.status) - self.assertEqual('kunit-resource-test', result.suites[0].name) + self.assertEqual('kunit-resource-test', result.test.subtests[0].name) def test_kernel_panic_end(self): panic_log = test_data_path('test_kernel_panic_interrupt.log') with open(panic_log) as file: result = kunit_parser.parse_run_tests(file.readlines()) self.assertEqual( - kunit_parser.TestStatus.TEST_CRASHED, + kunit_parser.TestStatus.SUCCESS, result.status) - self.assertEqual('kunit-resource-test', result.suites[0].name) + self.assertEqual('kunit-resource-test', result.test.subtests[0].name) def test_pound_no_prefix(self): pound_log = test_data_path('test_pound_no_prefix.log') @@ -269,7 +309,7 @@ class KUnitParserTest(unittest.TestCase): self.assertEqual( kunit_parser.TestStatus.SUCCESS, result.status) - self.assertEqual('kunit-resource-test', result.suites[0].name) + self.assertEqual('kunit-resource-test', result.test.subtests[0].name) class LinuxSourceTreeTest(unittest.TestCase): @@ -291,6 +331,14 @@ class LinuxSourceTreeTest(unittest.TestCase): pass tree = kunit_kernel.LinuxSourceTree('', kunitconfig_path=dir) + def test_kselftest_nested(self): + kselftest_log = test_data_path('test_is_test_passed-kselftest.log') + with open(kselftest_log) as file: + result = kunit_parser.parse_run_tests(file.readlines()) + self.assertEqual( + kunit_parser.TestStatus.SUCCESS, + result.status) + # TODO: add more test cases. @@ -322,6 +370,12 @@ class KUnitJsonTest(unittest.TestCase): result = self._json_for('test_is_test_passed-no_tests_run_with_header.log') self.assertEqual(0, len(result['sub_groups'])) + def test_nested_json(self): + result = self._json_for('test_is_test_passed-all_passed_nested.log') + self.assertEqual( + {'name': 'example_simple_test', 'status': 'PASS'}, + result["sub_groups"][0]["sub_groups"][0]["test_cases"][0]) + class StrContains(str): def __eq__(self, other): return self in other @@ -380,7 +434,7 @@ class KUnitMainTest(unittest.TestCase): self.assertEqual(e.exception.code, 1) self.assertEqual(self.linux_source_mock.build_reconfig.call_count, 1) self.assertEqual(self.linux_source_mock.run_kernel.call_count, 1) - self.print_mock.assert_any_call(StrContains(' 0 tests run')) + self.print_mock.assert_any_call(StrContains('invalid KTAP input!')) def test_exec_raw_output(self): self.linux_source_mock.run_kernel = mock.Mock(return_value=[]) @@ -388,7 +442,7 @@ class KUnitMainTest(unittest.TestCase): self.assertEqual(self.linux_source_mock.run_kernel.call_count, 1) for call in self.print_mock.call_args_list: self.assertNotEqual(call, mock.call(StrContains('Testing complete.'))) - self.assertNotEqual(call, mock.call(StrContains(' 0 tests run'))) + self.assertNotEqual(call, mock.call(StrContains(' 0 tests run!'))) def test_run_raw_output(self): self.linux_source_mock.run_kernel = mock.Mock(return_value=[]) @@ -397,7 +451,7 @@ class KUnitMainTest(unittest.TestCase): self.assertEqual(self.linux_source_mock.run_kernel.call_count, 1) for call in self.print_mock.call_args_list: self.assertNotEqual(call, mock.call(StrContains('Testing complete.'))) - self.assertNotEqual(call, mock.call(StrContains(' 0 tests run'))) + self.assertNotEqual(call, mock.call(StrContains(' 0 tests run!'))) def test_run_raw_output_kunit(self): self.linux_source_mock.run_kernel = mock.Mock(return_value=[]) diff --git a/tools/testing/kunit/test_data/test_is_test_passed-all_passed_nested.log b/tools/testing/kunit/test_data/test_is_test_passed-all_passed_nested.log new file mode 100644 index 000000000000..9d5b04fe43a6 --- /dev/null +++ b/tools/testing/kunit/test_data/test_is_test_passed-all_passed_nested.log @@ -0,0 +1,34 @@ +TAP version 14 +1..2 + # Subtest: sysctl_test + 1..4 + # sysctl_test_dointvec_null_tbl_data: sysctl_test_dointvec_null_tbl_data passed + ok 1 - sysctl_test_dointvec_null_tbl_data + # Subtest: example + 1..2 + init_suite + # example_simple_test: initializing + # example_simple_test: example_simple_test passed + ok 1 - example_simple_test + # example_mock_test: initializing + # example_mock_test: example_mock_test passed + ok 2 - example_mock_test + kunit example: all tests passed + ok 2 - example + # sysctl_test_dointvec_table_len_is_zero: sysctl_test_dointvec_table_len_is_zero passed + ok 3 - sysctl_test_dointvec_table_len_is_zero + # sysctl_test_dointvec_table_read_but_position_set: sysctl_test_dointvec_table_read_but_position_set passed + ok 4 - sysctl_test_dointvec_table_read_but_position_set +kunit sysctl_test: all tests passed +ok 1 - sysctl_test + # Subtest: example + 1..2 +init_suite + # example_simple_test: initializing + # example_simple_test: example_simple_test passed + ok 1 - example_simple_test + # example_mock_test: initializing + # example_mock_test: example_mock_test passed + ok 2 - example_mock_test +kunit example: all tests passed +ok 2 - example diff --git a/tools/testing/kunit/test_data/test_is_test_passed-kselftest.log b/tools/testing/kunit/test_data/test_is_test_passed-kselftest.log new file mode 100644 index 000000000000..65d3f27feaf2 --- /dev/null +++ b/tools/testing/kunit/test_data/test_is_test_passed-kselftest.log @@ -0,0 +1,14 @@ +TAP version 13 +1..2 +# selftests: membarrier: membarrier_test_single_thread +# TAP version 13 +# 1..2 +# ok 1 sys_membarrier available +# ok 2 sys membarrier invalid command test: command = -1, flags = 0, errno = 22. Failed as expected +ok 1 selftests: membarrier: membarrier_test_single_thread +# selftests: membarrier: membarrier_test_multi_thread +# TAP version 13 +# 1..2 +# ok 1 sys_membarrier available +# ok 2 sys membarrier invalid command test: command = -1, flags = 0, errno = 22. Failed as expected +ok 2 selftests: membarrier: membarrier_test_multi_thread diff --git a/tools/testing/kunit/test_data/test_is_test_passed-missing_plan.log b/tools/testing/kunit/test_data/test_is_test_passed-missing_plan.log new file mode 100644 index 000000000000..5cd17b7f818a --- /dev/null +++ b/tools/testing/kunit/test_data/test_is_test_passed-missing_plan.log @@ -0,0 +1,31 @@ +KTAP version 1 + # Subtest: sysctl_test + # sysctl_test_dointvec_null_tbl_data: sysctl_test_dointvec_null_tbl_data passed + ok 1 - sysctl_test_dointvec_null_tbl_data + # sysctl_test_dointvec_table_maxlen_unset: sysctl_test_dointvec_table_maxlen_unset passed + ok 2 - sysctl_test_dointvec_table_maxlen_unset + # sysctl_test_dointvec_table_len_is_zero: sysctl_test_dointvec_table_len_is_zero passed + ok 3 - sysctl_test_dointvec_table_len_is_zero + # sysctl_test_dointvec_table_read_but_position_set: sysctl_test_dointvec_table_read_but_position_set passed + ok 4 - sysctl_test_dointvec_table_read_but_position_set + # sysctl_test_dointvec_happy_single_positive: sysctl_test_dointvec_happy_single_positive passed + ok 5 - sysctl_test_dointvec_happy_single_positive + # sysctl_test_dointvec_happy_single_negative: sysctl_test_dointvec_happy_single_negative passed + ok 6 - sysctl_test_dointvec_happy_single_negative + # sysctl_test_dointvec_single_less_int_min: sysctl_test_dointvec_single_less_int_min passed + ok 7 - sysctl_test_dointvec_single_less_int_min + # sysctl_test_dointvec_single_greater_int_max: sysctl_test_dointvec_single_greater_int_max passed + ok 8 - sysctl_test_dointvec_single_greater_int_max +kunit sysctl_test: all tests passed +ok 1 - sysctl_test + # Subtest: example + 1..2 +init_suite + # example_simple_test: initializing + # example_simple_test: example_simple_test passed + ok 1 - example_simple_test + # example_mock_test: initializing + # example_mock_test: example_mock_test passed + ok 2 - example_mock_test +kunit example: all tests passed +ok 2 - example diff --git a/tools/testing/kunit/test_data/test_strip_hyphen.log b/tools/testing/kunit/test_data/test_strip_hyphen.log new file mode 100644 index 000000000000..92ac7c24b374 --- /dev/null +++ b/tools/testing/kunit/test_data/test_strip_hyphen.log @@ -0,0 +1,16 @@ +KTAP version 1 +1..2 + # Subtest: sysctl_test + 1..1 + # sysctl_test_dointvec_null_tbl_data: sysctl_test_dointvec_null_tbl_data passed + ok 1 - sysctl_test_dointvec_null_tbl_data +kunit sysctl_test: all tests passed +ok 1 - sysctl_test + # Subtest: example + 1..1 +init_suite + # example_simple_test: initializing + # example_simple_test: example_simple_test passed + ok 1 example_simple_test +kunit example: all tests passed +ok 2 example -- 2.33.0.259.gc128427fd7-goog

4 years, 2 months

2
2
0 0

[PATCH v7 0/6] cgroup/cpuset: Add new cpuset partition type & empty effecitve cpus

by Waiman Long

v7: - Simplify the documentation patch (patch 5) as suggested by Tejun. - Fix a typo in patch 2 and improper commit log in patch 3. v6: - Remove duplicated tmpmask from update_prstate() which should fix the frame size too large problem reported by kernel test robot. v5: - Rebased to the latest for-5.15 branch of cgroup git tree and drop the 1st v4 patch as it has been merged. - Update patch 1 to always allow changing partition root back to member even if it invalidates child partitions undeneath it. - Adjust the empty effective cpu partition patch to not allow 0 effective cpu for terminal partition which will make it invalid). - Add a new patch to enable reading of cpuset.cpus.partition to display the reason that causes invalid partition. - Adjust the documentation and testing patch accordingly. This patchset makes four enhancements to the cpuset v2 code. Patch 1: Properly handle partition root tree and make partition invalid in case changes to cpuset.cpus violate any of the partition root constraints. Patch 2: Enable the "cpuset.cpus.partition" file to show the reason that causes invalid partition like "root invalid (No cpu available due to hotplug)". Patch 3: Add a new partition state "isolated" to create a partition root without load balancing. This is for handling intermitten workloads that have a strict low latency requirement. Patch 4: Allow partition roots that are not the top cpuset to distribute all its cpus to child partitions as long as there is no task associated with that partition root. This allows more flexibility for middleware to manage multiple partitions. Patch 5 updates the cgroup-v2.rst file accordingly. Patch 6 adds a new cpuset test to test the new cpuset partition code. Waiman Long (6): cgroup/cpuset: Properly transition to invalid partition cgroup/cpuset: Show invalid partition reason string cgroup/cpuset: Add a new isolated cpus.partition type cgroup/cpuset: Allow non-top parent partition to distribute out all CPUs cgroup/cpuset: Update description of cpuset.cpus.partition in cgroup-v2.rst kselftest/cgroup: Add cpuset v2 partition root state test Documentation/admin-guide/cgroup-v2.rst | 112 +-- kernel/cgroup/cpuset.c | 337 ++++++--- tools/testing/selftests/cgroup/Makefile | 5 +- .../selftests/cgroup/test_cpuset_prs.sh | 663 ++++++++++++++++++ tools/testing/selftests/cgroup/wait_inotify.c | 86 +++ 5 files changed, 1050 insertions(+), 153 deletions(-) create mode 100755 tools/testing/selftests/cgroup/test_cpuset_prs.sh create mode 100644 tools/testing/selftests/cgroup/wait_inotify.c -- 2.18.1

4 years, 2 months

4
15
0 0

[PATCH RESEND 00/17] Resend bitmap patches

by Yury Norov

This is a resend of previously submitted series: https://lore.kernel.org/patchwork/cover/1462071/ https://lore.kernel.org/patchwork/patch/1458703/ https://lore.kernel.org/lkml/YPG8SdsbQ+sxjk0w@yury-ThinkPad/T/ https://lore.kernel.org/lkml/YMVSHCY9yEocmfVD@yury-ThinkPad/T/ Most of the patches received testing and review. If I missed to add someone's review tag putting all together - my kind apologise. Please resend it here. I believe I addessed all comments except Joe's one. In comment to patch 3, Joe Perches suggested to rename include/linux/find.h, but didn't give a new name, so I leave it as is. Since this header is not for direct inclusion, I'm OK with any reasonable name, and we can change it later. Andrew, can you please take this series in linux-next? Andy Shevchenko (1): tools: Rename bitmap_alloc() to bitmap_zalloc() Yury Norov (16): bitops: protect find_first_{,zero}_bit properly bitops: move find_bit_*_le functions from le.h to find.h include: move find.h from asm_generic to linux arch: remove GENERIC_FIND_FIRST_BIT entirely lib: add find_first_and_bit() cpumask: use find_first_and_bit() all: replace find_next{,_zero}_bit with find_first{,_zero}_bit where appropriate tools: sync tools/bitmap with mother linux cpumask: replace cpumask_next_* with cpumask_first_* where appropriate include/linux: move for_each_bit() macros from bitops.h to find.h find: micro-optimize for_each_{set,clear}_bit() Replace for_each_*_bit_from() with for_each_*_bit() where appropriate mm/percpu: micro-optimize pcpu_is_populated() bitmap: unify find_bit operations lib: bitmap: add performance test for bitmap_print_to_pagebuf vsprintf: rework bitmap_list_string MAINTAINERS | 4 +- arch/alpha/include/asm/bitops.h | 2 - arch/arc/Kconfig | 1 - arch/arc/include/asm/bitops.h | 1 - arch/arm/include/asm/bitops.h | 1 - arch/arm64/Kconfig | 1 - arch/arm64/include/asm/bitops.h | 1 - arch/csky/include/asm/bitops.h | 1 - arch/h8300/include/asm/bitops.h | 1 - arch/hexagon/include/asm/bitops.h | 1 - arch/ia64/include/asm/bitops.h | 2 - arch/m68k/include/asm/bitops.h | 2 - arch/mips/Kconfig | 1 - arch/mips/include/asm/bitops.h | 1 - arch/openrisc/include/asm/bitops.h | 1 - arch/parisc/include/asm/bitops.h | 2 - arch/powerpc/include/asm/bitops.h | 2 - arch/powerpc/include/asm/cputhreads.h | 2 +- arch/powerpc/platforms/pasemi/dma_lib.c | 4 +- arch/riscv/include/asm/bitops.h | 1 - arch/s390/Kconfig | 1 - arch/s390/include/asm/bitops.h | 1 - arch/s390/kvm/kvm-s390.c | 2 +- arch/sh/include/asm/bitops.h | 1 - arch/sparc/include/asm/bitops_32.h | 1 - arch/sparc/include/asm/bitops_64.h | 2 - arch/x86/Kconfig | 1 - arch/x86/include/asm/bitops.h | 2 - arch/x86/kernel/apic/vector.c | 4 +- arch/x86/um/Kconfig | 1 - arch/xtensa/include/asm/bitops.h | 1 - block/blk-mq.c | 2 +- drivers/block/rnbd/rnbd-clt.c | 2 +- drivers/dma/ti/edma.c | 2 +- drivers/gpu/drm/etnaviv/etnaviv_gpu.c | 4 +- drivers/hwmon/ltc2992.c | 3 +- drivers/iio/adc/ad7124.c | 2 +- drivers/infiniband/hw/irdma/hw.c | 16 +- drivers/media/cec/core/cec-core.c | 2 +- drivers/media/mc/mc-devnode.c | 2 +- drivers/mmc/host/renesas_sdhi_core.c | 2 +- drivers/net/virtio_net.c | 2 +- drivers/pci/controller/dwc/pci-dra7xx.c | 2 +- drivers/scsi/lpfc/lpfc_sli.c | 10 +- drivers/soc/fsl/qbman/bman_portal.c | 2 +- drivers/soc/fsl/qbman/qman_portal.c | 2 +- drivers/soc/ti/k3-ringacc.c | 4 +- drivers/tty/n_tty.c | 2 +- drivers/virt/acrn/ioreq.c | 3 +- fs/f2fs/segment.c | 8 +- fs/ocfs2/cluster/heartbeat.c | 2 +- fs/ocfs2/dlm/dlmdomain.c | 4 +- fs/ocfs2/dlm/dlmmaster.c | 18 +- fs/ocfs2/dlm/dlmrecovery.c | 2 +- fs/ocfs2/dlm/dlmthread.c | 2 +- include/asm-generic/bitops.h | 1 - include/asm-generic/bitops/le.h | 64 --- include/linux/bitmap.h | 34 +- include/linux/bitops.h | 34 -- include/linux/cpumask.h | 46 ++- include/linux/find.h | 372 ++++++++++++++++++ kernel/time/clocksource.c | 4 +- lib/Kconfig | 3 - lib/find_bit.c | 21 + lib/find_bit_benchmark.c | 21 + lib/genalloc.c | 2 +- lib/test_bitmap.c | 37 ++ lib/vsprintf.c | 24 +- mm/percpu.c | 35 +- net/ncsi/ncsi-manage.c | 4 +- tools/include/asm-generic/bitops.h | 1 - tools/include/asm-generic/bitops/find.h | 145 ------- tools/include/linux/bitmap.h | 11 +- .../bitops => tools/include/linux}/find.h | 54 ++- tools/lib/find_bit.c | 20 + tools/perf/bench/find-bit-bench.c | 2 +- tools/perf/builtin-c2c.c | 6 +- tools/perf/builtin-record.c | 2 +- tools/perf/tests/bitmap.c | 2 +- tools/perf/tests/mem2node.c | 2 +- tools/perf/util/affinity.c | 4 +- tools/perf/util/header.c | 4 +- tools/perf/util/metricgroup.c | 2 +- tools/perf/util/mmap.c | 4 +- .../selftests/kvm/dirty_log_perf_test.c | 2 +- tools/testing/selftests/kvm/dirty_log_test.c | 4 +- .../selftests/kvm/x86_64/vmx_dirty_log_test.c | 2 +- 87 files changed, 657 insertions(+), 461 deletions(-) create mode 100644 include/linux/find.h delete mode 100644 tools/include/asm-generic/bitops/find.h rename {include/asm-generic/bitops => tools/include/linux}/find.h (83%) -- 2.30.2

4 years, 2 months

3
25
0 0

[PATCH v2] lib: use of kunit in test_parman.c

by José Aquiles Guedes de Rezende

Convert the parman test module to use the KUnit test framework. This makes the test clearer by leveraging KUnit's assertion macros and test case definitions,as well as helps standardize on a testing framework. Co-developed-by: Matheus Henrique de Souza Silva <matheushenriquedesouzasilva(a)protonmail.com> Signed-off-by: Matheus Henrique de Souza Silva <matheushenriquedesouzasilva(a)protonmail.com> Signed-off-by: José Aquiles Guedes de Rezende <jjoseaquiless(a)gmail.com> --- Changes in v2: - Rename TEST_PARMAN config item to PARMAN_KUNIT_TEST and make it work with the kunit framework. - Change KUNIT_ASSERT_EQ to KUNIT_ASSERT_EQ_MSG. - Call test_parman_resize(test_parman, 0) when parman_create fail - Remove kunit_kfree. - Remove "\n" in error messages - Remove casts to unsigned long lib/Kconfig.debug | 13 +++-- lib/Makefile | 2 +- lib/test_parman.c | 145 +++++++++++++++++++--------------------------- 3 files changed, 70 insertions(+), 90 deletions(-) diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 831212722924..e68a27e5e5b0 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -2231,12 +2231,15 @@ config TEST_HASH config TEST_IDA tristate "Perform selftest on IDA functions" -config TEST_PARMAN - tristate "Perform selftest on priority array manager" - depends on PARMAN +config PARMAN_KUNIT_TEST + tristate "Kunit test for priority array manager" if !KUNIT_ALL_TESTS + select PARMAN + depends on KUNIT + default KUNIT_ALL_TESTS help - Enable this option to test priority array manager on boot - (or module load). + Enable this option to test priority array manager on boot. + For more information on KUnit and unit tests in general please refer + to the KUnit documentation in Documentation/dev-tools/kunit/. If unsure, say N. diff --git a/lib/Makefile b/lib/Makefile index 5efd1b435a37..deb8946735e8 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -88,7 +88,7 @@ obj-$(CONFIG_TEST_BITMAP) += test_bitmap.o obj-$(CONFIG_TEST_STRSCPY) += test_strscpy.o obj-$(CONFIG_TEST_UUID) += test_uuid.o obj-$(CONFIG_TEST_XARRAY) += test_xarray.o -obj-$(CONFIG_TEST_PARMAN) += test_parman.o +obj-$(CONFIG_PARMAN_KUNIT_TEST) += test_parman.o obj-$(CONFIG_TEST_KMOD) += test_kmod.o obj-$(CONFIG_TEST_DEBUG_VIRTUAL) += test_debug_virtual.o obj-$(CONFIG_TEST_MEMCAT_P) += test_memcat_p.o diff --git a/lib/test_parman.c b/lib/test_parman.c index 35e32243693c..512f874bc71c 100644 --- a/lib/test_parman.c +++ b/lib/test_parman.c @@ -41,6 +41,8 @@ #include <linux/err.h> #include <linux/random.h> #include <linux/parman.h> +#include <linux/sched.h> +#include <kunit/test.h> #define TEST_PARMAN_PRIO_SHIFT 7 /* defines number of prios for testing */ #define TEST_PARMAN_PRIO_COUNT BIT(TEST_PARMAN_PRIO_SHIFT) @@ -91,12 +93,14 @@ struct test_parman { static int test_parman_resize(void *priv, unsigned long new_count) { + struct kunit *test = current->kunit_test; struct test_parman *test_parman = priv; struct test_parman_item **prio_array; unsigned long old_count; prio_array = krealloc(test_parman->prio_array, ITEM_PTRS_SIZE(new_count), GFP_KERNEL); + KUNIT_EXPECT_NOT_ERR_OR_NULL(test, prio_array); if (new_count == 0) return 0; if (!prio_array) @@ -214,42 +218,41 @@ static void test_parman_items_fini(struct test_parman *test_parman) } } -static struct test_parman *test_parman_create(const struct parman_ops *ops) +static int test_parman_create(struct kunit *test) { struct test_parman *test_parman; int err; - test_parman = kzalloc(sizeof(*test_parman), GFP_KERNEL); - if (!test_parman) - return ERR_PTR(-ENOMEM); + test_parman = kunit_kzalloc(test, sizeof(*test_parman), GFP_KERNEL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, test_parman); + err = test_parman_resize(test_parman, TEST_PARMAN_BASE_COUNT); - if (err) - goto err_resize; - test_parman->parman = parman_create(ops, test_parman); - if (!test_parman->parman) { - err = -ENOMEM; - goto err_parman_create; + KUNIT_ASSERT_EQ_MSG(test, err, 0, "test_parman_resize failed"); + + test_parman->parman = parman_create(&test_parman_lsort_ops, test_parman); + if (IS_ERR_OR_NULL(test_parman->parman)) { + test_parman_resize(test_parman, 0); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, test_parman->parman); } + test_parman_rnd_init(test_parman); test_parman_prios_init(test_parman); test_parman_items_init(test_parman); test_parman->run_budget = TEST_PARMAN_RUN_BUDGET; - return test_parman; - -err_parman_create: - test_parman_resize(test_parman, 0); -err_resize: - kfree(test_parman); - return ERR_PTR(err); + test->priv = test_parman; + return 0; } -static void test_parman_destroy(struct test_parman *test_parman) +static void test_parman_destroy(struct kunit *test) { + struct test_parman *test_parman = test->priv; + + if (!test_parman) + return; test_parman_items_fini(test_parman); test_parman_prios_fini(test_parman); parman_destroy(test_parman->parman); test_parman_resize(test_parman, 0); - kfree(test_parman); } static bool test_parman_run_check_budgets(struct test_parman *test_parman) @@ -265,8 +268,9 @@ static bool test_parman_run_check_budgets(struct test_parman *test_parman) return true; } -static int test_parman_run(struct test_parman *test_parman) +static void test_parman_run(struct kunit *test) { + struct test_parman *test_parman = test->priv; unsigned int i = test_parman_rnd_get(test_parman); int err; @@ -281,8 +285,8 @@ static int test_parman_run(struct test_parman *test_parman) err = parman_item_add(test_parman->parman, &item->prio->parman_prio, &item->parman_item); - if (err) - return err; + KUNIT_ASSERT_EQ_MSG(test, err, 0, "parman_item_add failed"); + test_parman->prio_array[item->parman_item.index] = item; test_parman->used_items++; } else { @@ -294,22 +298,19 @@ static int test_parman_run(struct test_parman *test_parman) } item->used = !item->used; } - return 0; } -static int test_parman_check_array(struct test_parman *test_parman, - bool gaps_allowed) +static void test_parman_check_array(struct kunit *test, bool gaps_allowed) { unsigned int last_unused_items = 0; unsigned long last_priority = 0; unsigned int used_items = 0; int i; + struct test_parman *test_parman = test->priv; - if (test_parman->prio_array_limit < TEST_PARMAN_BASE_COUNT) { - pr_err("Array limit is lower than the base count (%lu < %lu)\n", - test_parman->prio_array_limit, TEST_PARMAN_BASE_COUNT); - return -EINVAL; - } + KUNIT_ASSERT_GE_MSG(test, test_parman->prio_array_limit, TEST_PARMAN_BASE_COUNT, + "Array limit is lower than the base count (%lu < %lu)", + test_parman->prio_array_limit, TEST_PARMAN_BASE_COUNT); for (i = 0; i < test_parman->prio_array_limit; i++) { struct test_parman_item *item = test_parman->prio_array[i]; @@ -318,77 +319,53 @@ static int test_parman_check_array(struct test_parman *test_parman, last_unused_items++; continue; } - if (last_unused_items && !gaps_allowed) { - pr_err("Gap found in array even though they are forbidden\n"); - return -EINVAL; - } + + KUNIT_ASSERT_FALSE_MSG(test, last_unused_items && !gaps_allowed, + "Gap found in array even though they are forbidden"); last_unused_items = 0; used_items++; - if (item->prio->priority < last_priority) { - pr_err("Item belongs under higher priority then the last one (current: %lu, previous: %lu)\n", - item->prio->priority, last_priority); - return -EINVAL; - } - last_priority = item->prio->priority; + KUNIT_ASSERT_GE_MSG(test, item->prio->priority, last_priority, + "Item belongs under higher priority then the last one (current: %lu, previous: %lu)", + item->prio->priority, last_priority); - if (item->parman_item.index != i) { - pr_err("Item has different index in compare to where it actually is (%lu != %d)\n", - item->parman_item.index, i); - return -EINVAL; - } - } + last_priority = item->prio->priority; - if (used_items != test_parman->used_items) { - pr_err("Number of used items in array does not match (%u != %u)\n", - used_items, test_parman->used_items); - return -EINVAL; - } + KUNIT_ASSERT_EQ_MSG(test, item->parman_item.index, i, + "Item has different index in compare to where it actually is (%lu != %d)", + item->parman_item.index, i); - if (last_unused_items >= TEST_PARMAN_RESIZE_STEP_COUNT) { - pr_err("Number of unused item at the end of array is bigger than resize step (%u >= %lu)\n", - last_unused_items, TEST_PARMAN_RESIZE_STEP_COUNT); - return -EINVAL; } - pr_info("Priority array check successful\n"); + KUNIT_ASSERT_EQ_MSG(test, used_items, test_parman->used_items, + "Number of used items in array does not match (%u != %u)", + used_items, test_parman->used_items); - return 0; + KUNIT_ASSERT_LT_MSG(test, last_unused_items, TEST_PARMAN_RESIZE_STEP_COUNT, + "Number of unused item at the end of array is bigger than resize step (%u >= %lu)", + last_unused_items, TEST_PARMAN_RESIZE_STEP_COUNT); } -static int test_parman_lsort(void) +static void test_parman_lsort(struct kunit *test) { - struct test_parman *test_parman; - int err; - - test_parman = test_parman_create(&test_parman_lsort_ops); - if (IS_ERR(test_parman)) - return PTR_ERR(test_parman); - - err = test_parman_run(test_parman); - if (err) - goto out; - - err = test_parman_check_array(test_parman, false); - if (err) - goto out; -out: - test_parman_destroy(test_parman); - return err; + test_parman_run(test); + test_parman_check_array(test, false); } -static int __init test_parman_init(void) -{ - return test_parman_lsort(); -} +static struct kunit_case parman_test_case[] = { + KUNIT_CASE(test_parman_lsort), + {} +}; -static void __exit test_parman_exit(void) -{ -} +static struct kunit_suite parman_test_suite = { + .name = "parman", + .init = test_parman_create, + .exit = test_parman_destroy, + .test_cases = parman_test_case, +}; -module_init(test_parman_init); -module_exit(test_parman_exit); +kunit_test_suite(parman_test_suite); MODULE_LICENSE("Dual BSD/GPL"); MODULE_AUTHOR("Jiri Pirko <jiri(a)mellanox.com>"); -- 2.32.0

4 years, 2 months

3
2
0 0

[PATCH 0/3] Add RFC-7597 Section 5.1 PSID support

by Cole Dishington

Thanks for your time reviewing! Changes in v4: - Handle special case of no offset bits (a=0 / A=2^16). Cole Dishington (3): net: netfilter: Add RFC-7597 Section 5.1 PSID support xtables API net: netfilter: Add RFC-7597 Section 5.1 PSID support selftests: netfilter: Add RFC-7597 Section 5.1 PSID selftests include/uapi/linux/netfilter/nf_nat.h | 3 +- net/netfilter/nf_nat_core.c | 39 +++- net/netfilter/nf_nat_masquerade.c | 20 +- net/netfilter/xt_MASQUERADE.c | 44 ++++- .../netfilter/nat_masquerade_psid.sh | 182 ++++++++++++++++++ 5 files changed, 276 insertions(+), 12 deletions(-) create mode 100644 tools/testing/selftests/netfilter/nat_masquerade_psid.sh -- 2.32.0

4 years, 2 months

3
14
0 0

[net-next, v4, 00/11] ptp: support virtual clocks and timestamping

by Yangbo Lu

Current PTP driver exposes one PTP device to user which binds network interface/interfaces to provide timestamping. Actually we have a way utilizing timecounter/cyclecounter to virtualize any number of PTP clocks based on a same free running physical clock for using. The purpose of having multiple PTP virtual clocks is for user space to directly/easily use them for multiple domains synchronization. user space: ^ ^ | SO_TIMESTAMPING new flag: | Packets with | SOF_TIMESTAMPING_BIND_PHC | TX/RX HW timestamps v v +--------------------------------------------+ sock: | sock (new member sk_bind_phc) | +--------------------------------------------+ ^ ^ | ethtool_get_phc_vclocks | Convert HW timestamps | | to sk_bind_phc v v +--------------+--------------+--------------+ vclock: | ptp1 | ptp2 | ptpN | +--------------+--------------+--------------+ pclock: | ptp0 free running | +--------------------------------------------+ The block diagram may explain how it works. Besides the PTP virtual clocks, the packet HW timestamp converting to the bound PHC is also done in sock driver. For user space, PTP virtual clocks can be created via sysfs, and extended SO_TIMESTAMPING API (new flag SOF_TIMESTAMPING_BIND_PHC) can be used to bind one PTP virtual clock for timestamping. The test tool timestamping.c (together with linuxptp phc_ctl tool) can be used to verify: # echo 4 > /sys/class/ptp/ptp0/n_vclocks [ 129.399472] ptp ptp0: new virtual clock ptp2 [ 129.404234] ptp ptp0: new virtual clock ptp3 [ 129.409532] ptp ptp0: new virtual clock ptp4 [ 129.413942] ptp ptp0: new virtual clock ptp5 [ 129.418257] ptp ptp0: guarantee physical clock free running # # phc_ctl /dev/ptp2 set 10000 # phc_ctl /dev/ptp3 set 20000 # # timestamping eno0 2 SOF_TIMESTAMPING_TX_HARDWARE SOF_TIMESTAMPING_RAW_HARDWARE SOF_TIMESTAMPING_BIND_PHC # timestamping eno0 2 SOF_TIMESTAMPING_RX_HARDWARE SOF_TIMESTAMPING_RAW_HARDWARE SOF_TIMESTAMPING_BIND_PHC # timestamping eno0 3 SOF_TIMESTAMPING_TX_HARDWARE SOF_TIMESTAMPING_RAW_HARDWARE SOF_TIMESTAMPING_BIND_PHC # timestamping eno0 3 SOF_TIMESTAMPING_RX_HARDWARE SOF_TIMESTAMPING_RAW_HARDWARE SOF_TIMESTAMPING_BIND_PHC Changes for v2: - Converted to num_vclocks for creating virtual clocks. - Guranteed physical clock free running when using virtual clocks. - Fixed build warning. - Updated copyright. Changes for v3: - Supported PTP virtual clock in default in PTP driver. - Protected concurrency of ptp->num_vclocks accessing. - Supported PHC vclocks query via ethtool. - Extended SO_TIMESTAMPING API for PHC binding. - Converted HW timestamps to PHC bound, instead of previous binding domain value to PHC idea. - Other minor fixes. Changes for v4: - Used do_aux_work callback for vclock refreshing instead. - Used unsigned int for vclocks number, and max_vclocks for limitiation. - Fixed mutex locking. - Dynamically allocated memory for vclock index storage. - Removed ethtool ioctl command for vclocks getting. - Updated doc for ethtool phc vclocks get. - Converted to mptcp_setsockopt_sol_socket_timestamping(). - Passed so_timestamping for sock_set_timestamping. - Fixed checkpatch/build. - Other minor fixed. Yangbo Lu (11): ptp: add ptp virtual clock driver framework ptp: support ptp physical/virtual clocks conversion ptp: track available ptp vclocks information ptp: add kernel API ptp_get_vclocks_index() ethtool: add a new command for getting PHC virtual clocks ptp: add kernel API ptp_convert_timestamp() mptcp: setsockopt: convert to mptcp_setsockopt_sol_socket_timestamping() net: sock: extend SO_TIMESTAMPING for PHC binding net: socket: support hardware timestamp conversion to PHC bound selftests/net: timestamping: support binding PHC MAINTAINERS: add entry for PTP virtual clock driver Documentation/ABI/testing/sysfs-ptp | 20 ++ Documentation/networking/ethtool-netlink.rst | 22 ++ MAINTAINERS | 7 + drivers/ptp/Makefile | 2 +- drivers/ptp/ptp_clock.c | 41 +++- drivers/ptp/ptp_private.h | 39 ++++ drivers/ptp/ptp_sysfs.c | 160 ++++++++++++++ drivers/ptp/ptp_vclock.c | 219 +++++++++++++++++++ include/linux/ethtool.h | 10 + include/linux/ptp_clock_kernel.h | 31 ++- include/net/sock.h | 8 +- include/uapi/linux/ethtool_netlink.h | 15 ++ include/uapi/linux/net_tstamp.h | 17 +- net/core/sock.c | 65 +++++- net/ethtool/Makefile | 2 +- net/ethtool/common.c | 14 ++ net/ethtool/netlink.c | 10 + net/ethtool/netlink.h | 2 + net/ethtool/phc_vclocks.c | 94 ++++++++ net/mptcp/sockopt.c | 69 ++++-- net/socket.c | 19 +- tools/testing/selftests/net/timestamping.c | 62 ++++-- 22 files changed, 875 insertions(+), 53 deletions(-) create mode 100644 drivers/ptp/ptp_vclock.c create mode 100644 net/ethtool/phc_vclocks.c base-commit: 19938bafa7ae8fc0a4a2c1c1430abb1a04668da1 -- 2.25.1

4 years, 2 months

5
16
0 0

[RFC net-next 0/2] Add RTNL interface for SyncE

by Maciej Machnikowski

Synchronous Ethernet networks use a physical layer clock to syntonize the frequency across different network elements. Multiple reference clock sources can be used. Clocks recovered from PHY ports on the RX side or external sources like 1PPS GPS, etc. This patch series introduces basic interface for reading the DPLL state on a SyncE capable device. This state gives us information about the source of the syntonization signal and whether the DPLL circuit is tuned to the incoming signal. Next steps: - add interface to enable recovered clocks and get information about them Maciej Machnikowski (2): rtnetlink: Add new RTM_GETSYNCESTATE message to get SyncE status ice: add support for reading SyncE DPLL state drivers/net/ethernet/intel/ice/ice.h | 5 ++ .../net/ethernet/intel/ice/ice_adminq_cmd.h | 34 ++++++++ drivers/net/ethernet/intel/ice/ice_common.c | 62 +++++++++++++++ drivers/net/ethernet/intel/ice/ice_common.h | 4 + drivers/net/ethernet/intel/ice/ice_devids.h | 3 + drivers/net/ethernet/intel/ice/ice_main.c | 55 +++++++++++++ drivers/net/ethernet/intel/ice/ice_ptp.c | 35 +++++++++ drivers/net/ethernet/intel/ice/ice_ptp_hw.c | 44 +++++++++++ drivers/net/ethernet/intel/ice/ice_ptp_hw.h | 22 ++++++ include/linux/netdevice.h | 6 ++ include/uapi/linux/if_link.h | 43 +++++++++++ include/uapi/linux/rtnetlink.h | 11 ++- net/core/rtnetlink.c | 77 +++++++++++++++++++ security/selinux/nlmsgtab.c | 3 +- 14 files changed, 399 insertions(+), 5 deletions(-) -- 2.26.3

4 years, 2 months

3
4
0 0

[PATCH linux-next] tests: remove unneeded conversions to bool

by CGEL

From: Changcheng Deng <deng.changcheng(a)zte.com.cn> tools/testing/selftests/move_mount_set_group/move_mount_set_group_test.c: 225:18-23:WARNING: conversion to bool not needed here Because the definition of function is "static int move_mount_set_group_supported(void)", the return type should be int. Reported-by: Zeal Robot <zealci(a)zte.com.cn> Signed-off-by: Changcheng Deng <deng.changcheng(a)zte.com.cn> --- .../testing/selftests/move_mount_set_group/move_mount_set_group_test.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/move_mount_set_group/move_mount_set_group_test.c b/tools/testing/selftests/move_mount_set_group/move_mount_set_group_test.c index 860198f..beade21 100644 --- a/tools/testing/selftests/move_mount_set_group/move_mount_set_group_test.c +++ b/tools/testing/selftests/move_mount_set_group/move_mount_set_group_test.c @@ -222,7 +222,7 @@ static int move_mount_set_group_supported(void) AT_FDCWD, SET_GROUP_TO, MOVE_MOUNT_SET_GROUP); umount2("/tmp", MNT_DETACH); - return ret < 0 ? false : true; + return ret < 0 ? 0 : 1; } FIXTURE(move_mount_set_group) { -- 1.8.3.1

4 years, 2 months

1
0
0 0

[PATCH v2 0/5] KVM: rseq: Fix and a test for a KVM+rseq bug

by Sean Christopherson

Patch 1 fixes a KVM+rseq bug where KVM's handling of TIF_NOTIFY_RESUME, e.g. for task migration, clears the flag without informing rseq and leads to stale data in userspace's rseq struct. Patch 2 is a cleanup to try and make future bugs less likely. It's also a baby step towards moving and renaming tracehook_notify_resume() since it has nothing to do with tracing. Patch 3 is a fix/cleanup to stop overriding x86's unistd_{32,64}.h when the include path (intentionally) omits tools' uapi headers. KVM's selftests do exactly that so that they can pick up the uapi headers from the installed kernel headers, and still use various tools/ headers that mirror kernel code, e.g. linux/types.h. This allows the new test in patch 4 to reference __NR_rseq without having to manually define it. Patch 4 is a regression test for the KVM+rseq bug. Patch 5 is a cleanup made possible by patch 3. v2: - Don't touch rseq_cs when handling KVM case so that rseq_syscall() will still detect a naughty userspace. [Mathieu] - Use a sequence counter + retry in the test to ensure the process isn't migrated between sched_getcpu() and reading rseq.cpu_id, i.e. to avoid a flaky test. [Mathieu] - Add Mathieu's ack for patch 2. - Add more comments in the test. v1: https://lkml.kernel.org/r/20210818001210.4073390-1-seanjc@google.com Sean Christopherson (5): KVM: rseq: Update rseq when processing NOTIFY_RESUME on xfer to KVM guest entry: rseq: Call rseq_handle_notify_resume() in tracehook_notify_resume() tools: Move x86 syscall number fallbacks to .../uapi/ KVM: selftests: Add a test for KVM_RUN+rseq to detect task migration bugs KVM: selftests: Remove __NR_userfaultfd syscall fallback arch/arm/kernel/signal.c | 1 - arch/arm64/kernel/signal.c | 1 - arch/csky/kernel/signal.c | 4 +- arch/mips/kernel/signal.c | 4 +- arch/powerpc/kernel/signal.c | 4 +- arch/s390/kernel/signal.c | 1 - include/linux/tracehook.h | 2 + kernel/entry/common.c | 4 +- kernel/rseq.c | 14 +- .../x86/include/{ => uapi}/asm/unistd_32.h | 0 .../x86/include/{ => uapi}/asm/unistd_64.h | 3 - tools/testing/selftests/kvm/.gitignore | 1 + tools/testing/selftests/kvm/Makefile | 3 + tools/testing/selftests/kvm/rseq_test.c | 154 ++++++++++++++++++ 14 files changed, 175 insertions(+), 21 deletions(-) rename tools/arch/x86/include/{ => uapi}/asm/unistd_32.h (100%) rename tools/arch/x86/include/{ => uapi}/asm/unistd_64.h (83%) create mode 100644 tools/testing/selftests/kvm/rseq_test.c -- 2.33.0.rc2.250.ged5fa647cd-goog

4 years, 2 months

3
15
0 0

[PATCH v2 0/3] kselftests: clean configs

by Li Zhijian

0Day will check if all configs listing under selftests are able to be enabled properly. For the missing configs, it will report something like: LKP WARN miss config CONFIG_SYNC= of sync/config CC: kernel test robot <lkp(a)intel.com> CC: "Jason A. Donenfeld" <Jason(a)zx2c4.com> CC: Nick Desaulniers <ndesaulniers(a)google.com> CC: Masahiro Yamada <masahiroy(a)kernel.org> CC: wireguard(a)lists.zx2c4.com CC: netdev(a)vger.kernel.org CC: "Rafael J. Wysocki" <rjw(a)rjwysocki.net> CC: Viresh Kumar <viresh.kumar(a)linaro.org> CC: linux-pm(a)vger.kernel.org Reported-by: kernel test robot <lkp(a)intel.com> Li Zhijian (3): selftests/sync: Remove the deprecated config SYNC selftests/cpufreq: Rename DEBUG_PI_LIST to DEBUG_PLIST selftests/wireguard: Rename DEBUG_PI_LIST to DEBUG_PLIST tools/testing/selftests/cpufreq/config | 2 +- tools/testing/selftests/sync/config | 1 - tools/testing/selftests/wireguard/qemu/debug.config | 2 +- 3 files changed, 2 insertions(+), 3 deletions(-) -- 2.31.1

4 years, 2 months

4
9
0 0

[PATCH -next] selftests/powerpc: Remove duplicated include from tm-poison.c

by Zheng Yongjun

Remove duplicated include. Reported-by: Hulk Robot <hulkci(a)huawei.com> Signed-off-by: Zheng Yongjun <zhengyongjun3(a)huawei.com> --- tools/testing/selftests/powerpc/tm/tm-poison.c | 1 - 1 file changed, 1 deletion(-) diff --git a/tools/testing/selftests/powerpc/tm/tm-poison.c b/tools/testing/selftests/powerpc/tm/tm-poison.c index 29e5f26af7b9..27c083a03d1f 100644 --- a/tools/testing/selftests/powerpc/tm/tm-poison.c +++ b/tools/testing/selftests/powerpc/tm/tm-poison.c @@ -20,7 +20,6 @@ #include <sched.h> #include <sys/types.h> #include <signal.h> -#include <inttypes.h> #include "tm.h"

4 years, 2 months

2
1
0 0

[PATCH] selftests/bpf: fix potential unreleased lock

by Chengfeng Ye

This lock is not released if the program return at the patched branch. Cc: cyeaa(a)connect.ust.hk Signed-off-by: Chengfeng Ye <cyeaa(a)connect.ust.hk> --- tools/testing/selftests/bpf/prog_tests/sockopt_inherit.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/bpf/prog_tests/sockopt_inherit.c b/tools/testing/selftests/bpf/prog_tests/sockopt_inherit.c index ec281b0363b8..86f97681ad89 100644 --- a/tools/testing/selftests/bpf/prog_tests/sockopt_inherit.c +++ b/tools/testing/selftests/bpf/prog_tests/sockopt_inherit.c @@ -195,8 +195,10 @@ static void run_test(int cgroup_fd) pthread_mutex_lock(&server_started_mtx); if (CHECK_FAIL(pthread_create(&tid, NULL, server_thread, - (void *)&server_fd))) + (void *)&server_fd))) { + pthread_mutex_unlock(&server_started_mtx); goto close_server_fd; + } pthread_cond_wait(&server_started, &server_started_mtx); pthread_mutex_unlock(&server_started_mtx); -- 2.17.1

4 years, 2 months

1
0
0 0

[PATCH] selftests: safesetid: Fix spelling mistake "cant" -> "can't"

by Colin King

From: Colin Ian King <colin.king(a)canonical.com> There is a spelling mistake in an error message. Fix it. Signed-off-by: Colin Ian King <colin.king(a)canonical.com> --- tools/testing/selftests/safesetid/safesetid-test.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/safesetid/safesetid-test.c b/tools/testing/selftests/safesetid/safesetid-test.c index 0c4d50644c13..4b809c93ba36 100644 --- a/tools/testing/selftests/safesetid/safesetid-test.c +++ b/tools/testing/selftests/safesetid/safesetid-test.c @@ -152,7 +152,7 @@ static void write_policies(void) fd = open(add_whitelist_policy_file, O_WRONLY); if (fd < 0) - die("cant open add_whitelist_policy file\n"); + die("can't open add_whitelist_policy file\n"); written = write(fd, policy_str, strlen(policy_str)); if (written != strlen(policy_str)) { if (written >= 0) { -- 2.32.0

4 years, 2 months

2
1
0 0

[PATCH linux-next] powerpc/tm: remove duplicate include in tm-poison.c

by cgel.zte＠gmail.com

From: yong yiran <yong.yiran(a)zte.com.cn> 'inttypes.h' included in 'tm-poison.c' is duplicated. Remove all but the first include of inttypes.h from tm-poison.c. Reported-by: Zeal Robot <zealci(a)zte.com.cn> Signed-off-by: yong yiran <yong.yiran(a)zte.com.cn> --- tools/testing/selftests/powerpc/tm/tm-poison.c | 1 - 1 file changed, 1 deletion(-) diff --git a/tools/testing/selftests/powerpc/tm/tm-poison.c b/tools/testing/selftests/powerpc/tm/tm-poison.c index 29e5f26af7b9..27c083a03d1f 100644 --- a/tools/testing/selftests/powerpc/tm/tm-poison.c +++ b/tools/testing/selftests/powerpc/tm/tm-poison.c @@ -20,7 +20,6 @@ #include <sched.h> #include <sys/types.h> #include <signal.h> -#include <inttypes.h> #include "tm.h" -- 2.25.1

4 years, 2 months

4
3
0 0

[PATCH] selftests: Fix spelling mistake "cann't" -> "cannot"

by Colin King

From: Colin Ian King <colin.king(a)canonical.com> There is a spelling mistake in an error message. Fix it. Signed-off-by: Colin Ian King <colin.king(a)canonical.com> --- tools/testing/selftests/vm/mlock-random-test.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/vm/mlock-random-test.c b/tools/testing/selftests/vm/mlock-random-test.c index ff4d72eb74b9..782ea94dee2f 100644 --- a/tools/testing/selftests/vm/mlock-random-test.c +++ b/tools/testing/selftests/vm/mlock-random-test.c @@ -70,7 +70,7 @@ int get_proc_locked_vm_size(void) } } - perror("cann't parse VmLck in /proc/self/status\n"); + perror("cannot parse VmLck in /proc/self/status\n"); fclose(f); return -1; } -- 2.32.0

4 years, 2 months

1
0
0 0

[PATCH linux-next] tools:signal: fix boolreturn.cocci warnings

by CGEL

From: Jing Yangyang <jing.yangyang(a)zte.com.cn> ./tools/testing/selftests/arm64/signal/test_signals_utils.h:112:9-10 WARNING: return of 0/1 in function 'get_current_context' with return type bool Return statements in functions returning bool should use true/false instead of 1/0. Generated by: scripts/coccinelle/misc/boolreturn.cocci Reported-by: Zeal Robot <zealci(a)zte.com.cn> Signed-off-by: Jing Yangyang <jing.yangyang(a)zte.com.cn> --- tools/testing/selftests/arm64/signal/test_signals_utils.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/arm64/signal/test_signals_utils.h b/tools/testing/selftests/arm64/signal/test_signals_utils.h index 6772b5c..66122e6 100644 --- a/tools/testing/selftests/arm64/signal/test_signals_utils.h +++ b/tools/testing/selftests/arm64/signal/test_signals_utils.h @@ -109,7 +109,7 @@ static __always_inline bool get_current_context(struct tdescr *td, if (seen_already) { fprintf(stdout, "Unexpected successful sigreturn detected: live_uc is stale !\n"); - return 0; + return false; } seen_already = 1; -- 1.8.3.1

4 years, 2 months

2
2
0 0

[PATCH] selftests: cleanup config

by Li Zhijian

- DEBUG_PI_LIST was renamed to DEBUG_PLIST since 8e18faeac3 ("lib/plist: rename DEBUG_PI_LIST to DEBUG_PLIST") - SYNC was removed since aff9da10e21 ("staging/android: make sync_timeline internal to sw_sync") $ for k in $(grep ^CONFIG $(find tools/testing/selftests/ -name config) | awk -F'=' '{print$1}' | awk -F':' '{print $2}' | sort | uniq); do k=${k#CONFIG_}; git grep -qw -e "menuconfig $k" -e "config $k" || echo "$k is missing"; done; DEBUG_PI_LIST is missing SYNC is missing CC: Philip Li <philip.li(a)intel.com> Reported-by: kernel test robot <lkp(a)intel.com> Signed-off-by: Li Zhijian <lizhijian(a)cn.fujitsu.com> --- tools/testing/selftests/cpufreq/config | 2 +- tools/testing/selftests/sync/config | 1 - tools/testing/selftests/wireguard/qemu/debug.config | 2 +- 3 files changed, 2 insertions(+), 3 deletions(-) diff --git a/tools/testing/selftests/cpufreq/config b/tools/testing/selftests/cpufreq/config index 27ff72ebd0f5..75e900793e8a 100644 --- a/tools/testing/selftests/cpufreq/config +++ b/tools/testing/selftests/cpufreq/config @@ -6,7 +6,7 @@ CONFIG_CPU_FREQ_GOV_ONDEMAND=y CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y CONFIG_CPU_FREQ_GOV_SCHEDUTIL=y CONFIG_DEBUG_RT_MUTEXES=y -CONFIG_DEBUG_PI_LIST=y +CONFIG_DEBUG_PLIST=y CONFIG_DEBUG_SPINLOCK=y CONFIG_DEBUG_MUTEXES=y CONFIG_DEBUG_LOCK_ALLOC=y diff --git a/tools/testing/selftests/sync/config b/tools/testing/selftests/sync/config index 1ab7e8130db2..47ff5afc3727 100644 --- a/tools/testing/selftests/sync/config +++ b/tools/testing/selftests/sync/config @@ -1,4 +1,3 @@ CONFIG_STAGING=y CONFIG_ANDROID=y -CONFIG_SYNC=y CONFIG_SW_SYNC=y diff --git a/tools/testing/selftests/wireguard/qemu/debug.config b/tools/testing/selftests/wireguard/qemu/debug.config index fe07d97df9fa..2b321b8a96cf 100644 --- a/tools/testing/selftests/wireguard/qemu/debug.config +++ b/tools/testing/selftests/wireguard/qemu/debug.config @@ -47,7 +47,7 @@ CONFIG_DEBUG_ATOMIC_SLEEP=y CONFIG_TRACE_IRQFLAGS=y CONFIG_DEBUG_BUGVERBOSE=y CONFIG_DEBUG_LIST=y -CONFIG_DEBUG_PI_LIST=y +CONFIG_DEBUG_PLIST=y CONFIG_PROVE_RCU=y CONFIG_SPARSE_RCU_POINTER=y CONFIG_RCU_CPU_STALL_TIMEOUT=21 -- 2.31.1

4 years, 2 months

2
1
0 0

[PATCH-cgroup v6 0/6] cgroup/cpuset: Add new cpuset partition type & empty effecitve cpus

by Waiman Long

v6: - Remove duplicated tmpmask from update_prstate() which should fix the frame size too large problem reported by kernel test robot. v5: - Rebased to the latest for-5.15 branch of cgroup git tree and drop the 1st v4 patch as it has been merged. - Update patch 1 to always allow changing partition root back to member even if it invalidates child partitions undeneath it. - Adjust the empty effective cpu partition patch to not allow 0 effective cpu for terminal partition which will make it invalid). - Add a new patch to enable reading of cpuset.cpus.partition to display the reason that causes invalid partition. - Adjust the documentation and testing patch accordingly. v4: - Rebased to the for-5.15 branch of cgroup git tree and dropped the first 3 patches of v3 series which have been merged. - Beside prohibiting violation of cpu exclusivity rule, allow arbitrary changes to cpuset.cpus of a partition root and force the partition root to become invalid in case any of the partition root constraints are violated. The documentation file and self test are modified accordingly. This patchset makes four enhancements to the cpuset v2 code. Patch 1: Properly handle partition root tree and make partition invalid in case changes to cpuset.cpus violate any of the partition root constraints. Patch 2: Enable the "cpuset.cpus.partition" file to show the reason that causes invalid partition like "root invalid (No cpu available due to hotplug)". Patch 3: Add a new partition state "isolated" to create a partition root without load balancing. This is for handling intermitten workloads that have a strict low latency requirement. Patch 4: Allow partition roots that are not the top cpuset to distribute all its cpus to child partitions as long as there is no task associated with that partition root. This allows more flexibility for middleware to manage multiple partitions. Patch 5 updates the cgroup-v2.rst file accordingly. Patch 6 adds a new cpuset test to test the new cpuset partition code. Waiman Long (6): cgroup/cpuset: Properly transition to invalid partition cgroup/cpuset: Show invalid partition reason string cgroup/cpuset: Add a new isolated cpus.partition type cgroup/cpuset: Allow non-top parent partition to distribute out all CPUs cgroup/cpuset: Update description of cpuset.cpus.partition in cgroup-v2.rst kselftest/cgroup: Add cpuset v2 partition root state test Documentation/admin-guide/cgroup-v2.rst | 116 +-- kernel/cgroup/cpuset.c | 337 ++++++--- tools/testing/selftests/cgroup/Makefile | 5 +- .../selftests/cgroup/test_cpuset_prs.sh | 663 ++++++++++++++++++ tools/testing/selftests/cgroup/wait_inotify.c | 86 +++ 5 files changed, 1058 insertions(+), 149 deletions(-) create mode 100755 tools/testing/selftests/cgroup/test_cpuset_prs.sh create mode 100644 tools/testing/selftests/cgroup/wait_inotify.c -- 2.18.1

4 years, 2 months

3
11
0 0

[PATCH v10 24/28] selftest/x86/amx: Test cases for the AMX state management

by Chang S. Bae

This selftest verifies that the XSTATE arch_prctl works for AMX state and that a forked task has the AMX state in the INIT-state. In addition, this test verifies that the kernel correctly context switches unique AMX data, when multiple threads are using AMX. The test also verifies that ptrace() can insert data into existing threads. Finally, add a test case to verify that unused states are excluded, by leaving a known pattern on the signal stack and verifying that it is still intact after taking a subsequent signal. These test cases do not depend on AMX compiler support, as they employ userspace-XSAVE directly to access AMX state. Signed-off-by: Chang S. Bae <chang.seok.bae(a)intel.com> Reviewed-by: Len Brown <len.brown(a)intel.com> Cc: linux-kernel(a)vger.kernel.org Cc: linux-kselftest(a)vger.kernel.org --- Changes from v9: * Minor cleanup on the ptrace test code. Changes from v8: * Adjust for the arch_prctl change. * Assure XTILECFG is recovered upon sigreturn.. Changes from v7: * Adjust for SIGILL. * Test XTILECFG for legacy signal delivery. Changes from v6: * Adjust for the syscall and ptrace path changes. Changes from v5: * Adjusted arch_prctl for the updated ABI. * Added test for the dynamic signal xstate buffer. * Fixed XSAVE buffer's header data. Changes from v4: * Added test for arch_prctl. * Excluded tile config details to focus on testing the kernel's ability to manage dynamic user state. * Removed tile instructions. * Simplified the fork() and ptrace() test routine. * Massaged the changelog. Changes from v2: * Updated the test messages and the changelog as tile data is not inherited to a child anymore. * Removed bytecode for the instructions already supported by binutils. * Changed to check the XSAVE availability in a reliable way. Changes from v1: * Removed signal testing code --- tools/testing/selftests/x86/Makefile | 2 +- tools/testing/selftests/x86/amx.c | 970 +++++++++++++++++++++++++++ 2 files changed, 971 insertions(+), 1 deletion(-) create mode 100644 tools/testing/selftests/x86/amx.c diff --git a/tools/testing/selftests/x86/Makefile b/tools/testing/selftests/x86/Makefile index b4142cd1c5c2..8a1f62ab3c8e 100644 --- a/tools/testing/selftests/x86/Makefile +++ b/tools/testing/selftests/x86/Makefile @@ -18,7 +18,7 @@ TARGETS_C_32BIT_ONLY := entry_from_vm86 test_syscall_vdso unwind_vdso \ test_FCMOV test_FCOMI test_FISTTP \ vdso_restorer TARGETS_C_64BIT_ONLY := fsgsbase sysret_rip syscall_numbering \ - corrupt_xstate_header + corrupt_xstate_header amx # Some selftests require 32bit support enabled also on 64bit systems TARGETS_C_32BIT_NEEDED := ldt_gdt ptrace_syscall diff --git a/tools/testing/selftests/x86/amx.c b/tools/testing/selftests/x86/amx.c new file mode 100644 index 000000000000..1b4dada44383 --- /dev/null +++ b/tools/testing/selftests/x86/amx.c @@ -0,0 +1,970 @@ +// SPDX-License-Identifier: GPL-2.0 + +#define _GNU_SOURCE +#include <err.h> +#include <errno.h> +#include <elf.h> +#include <pthread.h> +#include <setjmp.h> +#include <stdio.h> +#include <string.h> +#include <stdbool.h> +#include <unistd.h> +#include <x86intrin.h> + +#include <linux/futex.h> + +#include <sys/ptrace.h> +#include <sys/shm.h> +#include <sys/syscall.h> +#include <sys/wait.h> +#include <sys/uio.h> + +#ifndef __x86_64__ +# error This test is 64-bit only +#endif + +static inline uint64_t xgetbv(uint32_t index) +{ + uint32_t eax, edx; + + asm volatile("xgetbv;" + : "=a" (eax), "=d" (edx) + : "c" (index)); + return eax + ((uint64_t)edx << 32); +} + +static inline void cpuid(uint32_t *eax, uint32_t *ebx, uint32_t *ecx, uint32_t *edx) +{ + asm volatile("cpuid;" + : "=a" (*eax), "=b" (*ebx), "=c" (*ecx), "=d" (*edx) + : "0" (*eax), "2" (*ecx)); +} + +static inline void xsave(void *xbuf, uint32_t lo, uint32_t hi) +{ + asm volatile("xsave (%%rdi)" + : : "D" (xbuf), "a" (lo), "d" (hi) + : "memory"); +} + +static inline void xrstor(void *xbuf, uint32_t lo, uint32_t hi) +{ + asm volatile("xrstor (%%rdi)" + : : "D" (xbuf), "a" (lo), "d" (hi)); +} + +static void sethandler(int sig, void (*handler)(int, siginfo_t *, void *), + int flags) +{ + struct sigaction sa; + + memset(&sa, 0, sizeof(sa)); + sa.sa_sigaction = handler; + sa.sa_flags = SA_SIGINFO | flags; + sigemptyset(&sa.sa_mask); + if (sigaction(sig, &sa, 0)) + err(1, "sigaction"); +} + +static void clearhandler(int sig) +{ + struct sigaction sa; + + memset(&sa, 0, sizeof(sa)); + sa.sa_handler = SIG_DFL; + sigemptyset(&sa.sa_mask); + if (sigaction(sig, &sa, 0)) + err(1, "sigaction"); +} + +static jmp_buf jmpbuf; + +/* Hardware info check: */ + +static bool noxsave; + +static void handle_noxsave(int sig, siginfo_t *si, void *ctx_void) +{ + noxsave = true; + siglongjmp(jmpbuf, 1); +} + +#define XFEATURE_XTILECFG 17 +#define XFEATURE_XTILEDATA 18 +#define XFEATURE_MASK_XTILECFG (1 << XFEATURE_XTILECFG) +#define XFEATURE_MASK_XTILEDATA (1 << XFEATURE_XTILEDATA) +#define XFEATURE_MASK_XTILE (XFEATURE_MASK_XTILECFG | XFEATURE_MASK_XTILEDATA) + +static inline bool check_xtile(void) +{ + bool xtile_enable; + + sethandler(SIGILL, handle_noxsave, 0); + + if ((!sigsetjmp(jmpbuf, 1)) && (xgetbv(0) & XFEATURE_MASK_XTILE)) { + xtile_enable = true; + goto out; + } + xtile_enable = false; +out: + clearhandler(SIGILL); + return xtile_enable; +} + +static uint32_t xsave_size; +static uint32_t xsave_xtiledata_offset, xsave_xtilecfg_offset; +static uint32_t xtiledata_size, xtilecfg_size; + +static struct _tile_spec { + uint16_t bytes_per_row; + uint16_t max_names; + uint16_t max_rows; +} tile_spec; + +#define XSTATE_CPUID 0xd +#define XSTATE_USER_STATE_SUBLEAVE 0x0 +#define TILE_CPUID 0x1d +#define TILE_PALETTE_ID 0x1 + +static void check_cpuid(void) +{ + uint32_t eax, ebx, ecx, edx; + + eax = XSTATE_CPUID; + ecx = XSTATE_USER_STATE_SUBLEAVE; + + cpuid(&eax, &ebx, &ecx, &edx); + if (!ebx) + err(1, "xstate cpuid: xsave size"); + + xsave_size = ebx; + + eax = XSTATE_CPUID; + ecx = XFEATURE_XTILECFG; + + cpuid(&eax, &ebx, &ecx, &edx); + if (!eax || !ebx) + err(1, "xstate cpuid: tile config state"); + + xtilecfg_size = eax; + xsave_xtilecfg_offset = ebx; + + eax = XSTATE_CPUID; + ecx = XFEATURE_XTILEDATA; + + cpuid(&eax, &ebx, &ecx, &edx); + if (!eax || !ebx) + err(1, "xstate cpuid: tile data state"); + + xtiledata_size = eax; + xsave_xtiledata_offset = ebx; + + eax = TILE_CPUID; + ecx = TILE_PALETTE_ID; + + cpuid(&eax, &ebx, &ecx, &edx); + if (!eax || !ebx || !ecx) + err(1, "tile cpuid: palette 1"); + + tile_spec.max_names = ebx >> 16; + tile_spec.bytes_per_row = ebx; + tile_spec.max_rows = ecx; +} + +/* The helpers for managing XSAVE buffer and tile states: */ + +void *alloc_xsave_buffer(void) +{ + void *xbuf; + + /* XSAVE buffer should be 64B-aligned. */ + xbuf = aligned_alloc(64, xsave_size); + if (!xbuf) + err(1, "aligned_alloc()"); + return xbuf; +} + +#define XSAVE_HDR_OFFSET 512 +#define XSAVE_HDR_SIZE 64 + +static inline void clear_xstate_header(void *buffer) +{ + memset(buffer + XSAVE_HDR_OFFSET, 0, XSAVE_HDR_SIZE); +} + +static inline uint64_t get_xstatebv(void *buffer) +{ + return *(uint64_t *)(buffer + XSAVE_HDR_OFFSET); +} + +static inline void set_xstatebv(void *buffer, uint64_t bv) +{ + *(uint64_t *)(buffer + XSAVE_HDR_OFFSET) = bv; +} + +static void set_rand_tiledata(void *tiledata) +{ + int *ptr = tiledata; + int data = rand(); + int i; + + for (i = 0; i < xtiledata_size / sizeof(int); i++, ptr++) + *ptr = data; +} + +#define MAX_TILES 16 +#define RESERVED_BYTES 14 + +struct tile_config { + uint8_t palette_id; + uint8_t start_row; + uint8_t reserved[RESERVED_BYTES]; + uint16_t colsb[MAX_TILES]; + uint8_t rows[MAX_TILES]; +}; + +static void set_tilecfg(void *tilecfg) +{ + struct tile_config *cfg = tilecfg; + int i; + + memset(cfg, 0, sizeof(*cfg)); + cfg->palette_id = TILE_PALETTE_ID; + for (i = 0; i < tile_spec.max_names; i++) { + cfg->colsb[i] = tile_spec.bytes_per_row; + cfg->rows[i] = tile_spec.max_rows; + } +} + +static void *xsave_buffer, *tiledata, *tilecfg; +static int nerrs, errs; + +/* See 'struct _fpx_sw_bytes' at sigcontext.h */ +#define SW_BYTES_OFFSET 464 +/* N.B. The struct's field name varies so read from the offset. */ +#define SW_BYTES_BV_OFFSET (SW_BYTES_OFFSET + 8) + +static inline struct _fpx_sw_bytes *get_fpx_sw_bytes(void *buffer) +{ + return (struct _fpx_sw_bytes *)(buffer + SW_BYTES_OFFSET); +} + +static inline uint64_t get_fpx_sw_bytes_xstatebv(void *buffer) +{ + return *(uint64_t *)(buffer + SW_BYTES_BV_OFFSET); +} + +static volatile bool noperm; +static bool check_tilecfg_sigframe; + +static void handle_noperm(int sig, siginfo_t *si, void *ctx_void) +{ + ucontext_t *ctx = (ucontext_t *)ctx_void; + void *xbuf = ctx->uc_mcontext.fpregs; + struct _fpx_sw_bytes *sw_bytes; + + printf("\tAt SIGILL handler,\n"); + + if (si->si_code != ILL_ILLOPC) { + errs++; + printf("[FAIL]\tInvalid signal code (%x).\n", si->si_code); + } else { + printf("[OK]\tValid signal code (ILL_ILLOPC).\n"); + } + + sw_bytes = get_fpx_sw_bytes(xbuf); + if (!(sw_bytes->xstate_size < xsave_xtiledata_offset) && + !(get_fpx_sw_bytes_xstatebv(xbuf) & XFEATURE_MASK_XTILEDATA)) { + printf("[OK]\tValid xstate size and mask in the SW data of xstate buffer.\n"); + } else { + errs++; + printf("[FAIL]\tInvalid xstate size and/or mask in the SW data of xstate buf.\n"); + } + + if (check_tilecfg_sigframe) { + if (memcmp(tilecfg, xbuf + xsave_xtilecfg_offset, xtilecfg_size)) { + errs++; + printf("[FAIL]\tTILECFG is corrupted.\n"); + } else { + printf("[OK]\tTILECFG is successfully delivered.\n"); + } + } + + noperm = true; + ctx->uc_mcontext.gregs[REG_RIP] += 3; /* Skip the faulting XRSTOR */ +} + +/* Return true if XRSTOR is successful; otherwise, false. */ +static inline bool xrstor_safe(void *buffer, uint32_t lo, uint32_t hi) +{ + noperm = false; + xrstor(buffer, lo, hi); + return !noperm; +} + +/* arch_prctl test */ + +#define ARCH_SET_STATE_ENABLE 0x1021 +#define ARCH_GET_STATE_ENABLE 0x1022 + +static void enable_tiledata(void) +{ + unsigned long bitmask; + long rc; + + rc = syscall(SYS_arch_prctl, ARCH_SET_STATE_ENABLE, XFEATURE_MASK_XTILEDATA); + if (rc) + goto fail; + + rc = syscall(SYS_arch_prctl, ARCH_GET_STATE_ENABLE, &bitmask); + if (rc) + err(1, "ARCH_GET_STATE_ENABLE"); + else if (bitmask & XFEATURE_MASK_XTILEDATA) + return; + +fail: + err(1, "ARCH_SET_STATE_ENABLE"); +} + +#define TEST_EXECV_ARG "nested" + +static void test_arch_prctl(int argc, char **argv) +{ + pid_t parent, child, grandchild; + + parent = fork(); + if (parent < 0) { + err(1, "fork"); + } else if (parent > 0) { + int status; + + wait(&status); + if (!WIFEXITED(status) || WEXITSTATUS(status)) + err(1, "arch_prctl test parent exit"); + return; + } + + printf("[RUN]\tCheck ARCH_SET_STATE_ENABLE around process fork().\n"); + + printf("\tFork a child.\n"); + child = fork(); + if (child < 0) { + err(1, "fork"); + } else if (child > 0) { + int status; + + enable_tiledata(); + printf("\tDo ARCH_SET_STATE_ENABLE at parent\n"); + + wait(&status); + if (!WIFEXITED(status) || WEXITSTATUS(status)) + err(1, "arch_prctl test child exit"); + _exit(0); + } + + clear_xstate_header(xsave_buffer); + + /* By default, XTILECFG is permitted to use. */ + set_xstatebv(xsave_buffer, XFEATURE_MASK_XTILECFG); + set_tilecfg(xsave_buffer + xsave_xtilecfg_offset); + xrstor(xsave_buffer, -1, -1); + memcpy(tilecfg, xsave_buffer + xsave_xtilecfg_offset, xtilecfg_size); + + set_xstatebv(xsave_buffer, XFEATURE_MASK_XTILEDATA); + set_rand_tiledata(xsave_buffer + xsave_xtiledata_offset); + + printf("\tLoad tile data without ARCH_SET_STATE_ENABLE at child.\n"); + /* + * Test XTILECFG state delivery via signal, when XTILEDATA is not + * permitted. + */ + check_tilecfg_sigframe = true; + if (xrstor_safe(xsave_buffer, -1, -1)) { + nerrs++; + printf("[FAIL]\tSucceeded at child.\n"); + } else { + printf("[OK]\tBlocked at child.\n"); + + /* Assure XTILECFG state recovery at sigreturn. */ + printf("\tReturn from signal handler,\n"); + xsave(xsave_buffer, XFEATURE_MASK_XTILECFG, 0); + if (memcmp(tilecfg, xsave_buffer + xsave_xtilecfg_offset, xtilecfg_size)) { + nerrs++; + printf("[FAIL]\tTilecfg is not restored.\n"); + } else { + printf("[OK]\tTilecfg is restored.\n"); + } + } + + printf("\tDo ARCH_SET_STATE_ENABLE at child.\n"); + enable_tiledata(); + + printf("\tLoad tile data with ARCH_SET_STATE_ENABLE at child:\n"); + check_tilecfg_sigframe = false; + if (xrstor_safe(xsave_buffer, -1, -1)) { + printf("[OK]\tSucceeded at child.\n"); + } else { + nerrs++; + printf("[FAIL]\tBlocked at child.\n"); + } + + printf("\tFork a grandchild.\n"); + grandchild = fork(); + if (grandchild < 0) { + err(1, "fork"); + } else if (!grandchild) { + char *args[] = {argv[0], TEST_EXECV_ARG, NULL}; + + if (xrstor_safe(xsave_buffer, -1, -1)) { + printf("[OK]\tSucceeded at grandchild.\n"); + } else { + nerrs++; + printf("[FAIL]\tBlocked at grandchild.\n"); + } + nerrs += execv(args[0], args); + } else { + int status; + + wait(&status); + if (!WIFEXITED(status) || WEXITSTATUS(status)) + err(1, "fork test grandchild"); + } + _exit(0); +} + +/* Testing tile data inheritance */ + +static void test_fork(void) +{ + pid_t child, grandchild; + + child = fork(); + if (child < 0) { + err(1, "fork"); + } else if (child > 0) { + int status; + + wait(&status); + if (!WIFEXITED(status) || WEXITSTATUS(status)) + err(1, "fork test child"); + return; + } + + printf("[RUN]\tCheck tile data inheritance.\n\tBefore fork(), load tile data -- yes:\n"); + + clear_xstate_header(xsave_buffer); + set_xstatebv(xsave_buffer, XFEATURE_MASK_XTILE); + set_tilecfg(xsave_buffer + xsave_xtilecfg_offset); + set_rand_tiledata(xsave_buffer + xsave_xtiledata_offset); + xrstor_safe(xsave_buffer, -1, -1); + + grandchild = fork(); + if (grandchild < 0) { + err(1, "fork"); + } else if (grandchild > 0) { + int status; + + wait(&status); + if (!WIFEXITED(status) || WEXITSTATUS(status)) + err(1, "fork test grand child"); + _exit(0); + } + + if (xgetbv(1) & XFEATURE_MASK_XTILE) { + nerrs++; + printf("[FAIL]\tIn a child, AMX state is not initialized.\n"); + } else { + printf("[OK]\tIn a child, AMX state is initialized.\n"); + } + _exit(0); +} + +/* Context switching test */ + +#define ITERATIONS 10 +#define NUM_THREADS 5 + +struct futex_info { + int current; + int *futex; + int next; +}; + +static inline void command_wait(struct futex_info *info, int value) +{ + do { + sched_yield(); + } while (syscall(SYS_futex, info->futex, FUTEX_WAIT, value, 0, 0, 0)); +} + +static inline void command_wake(struct futex_info *info, int value) +{ + do { + *info->futex = value; + while (!syscall(SYS_futex, info->futex, FUTEX_WAKE, 1, 0, 0, 0)) + sched_yield(); + } while (0); +} + +static inline int get_iterative_value(int id) +{ + return ((id << 1) & ~0x1); +} + +static inline int get_endpoint_value(int id) +{ + return ((id << 1) | 0x1); +} + +static void *check_tiledata(void *info) +{ + struct futex_info *finfo = (struct futex_info *)info; + void *xbuf, *tdata; + int i; + + xbuf = alloc_xsave_buffer(); + tdata = malloc(xtiledata_size); + if (!tdata) + err(1, "malloc()"); + + set_xstatebv(xbuf, XFEATURE_MASK_XTILEDATA); + set_rand_tiledata(xbuf + xsave_xtiledata_offset); + xrstor_safe(xbuf, -1, -1); + memcpy(tdata, xbuf + xsave_xtiledata_offset, xtiledata_size); + + for (i = 0; i < ITERATIONS; i++) { + command_wait(finfo, get_iterative_value(finfo->current)); + + xsave(xbuf, XFEATURE_MASK_XTILEDATA, 0); + if (memcmp(tdata, xbuf + xsave_xtiledata_offset, xtiledata_size)) + errs++; + + set_rand_tiledata(xbuf + xsave_xtiledata_offset); + xrstor_safe(xbuf, -1, -1); + memcpy(tdata, xbuf + xsave_xtiledata_offset, xtiledata_size); + + command_wake(finfo, get_iterative_value(finfo->next)); + } + + command_wait(finfo, get_endpoint_value(finfo->current)); + + free(xbuf); + free(tdata); + return NULL; +} + +static int create_threads(int num, struct futex_info *finfo) +{ + const int shm_id = shmget(IPC_PRIVATE, sizeof(int), IPC_CREAT | 0666); + int *futex = shmat(shm_id, NULL, 0); + pthread_t thread; + int i; + + for (i = 0; i < num; i++) { + finfo[i].futex = futex; + finfo[i].current = i + 1; + finfo[i].next = (i + 2) % (num + 1); + + if (pthread_create(&thread, NULL, check_tiledata, &finfo[i])) + err(1, "pthread_create()"); + } + return 0; +} + +static void test_context_switch(void) +{ + struct futex_info *finfo; + int i; + + printf("[RUN]\tCheck tile data context switches.\n"); + printf("\t# of context switches -- %u, # of threads -- %d:\n", + ITERATIONS * NUM_THREADS, NUM_THREADS); + + errs = 0; + + finfo = malloc(sizeof(*finfo) * NUM_THREADS); + if (!finfo) + err(1, "malloc()"); + + create_threads(NUM_THREADS, finfo); + + for (i = 0; i < ITERATIONS; i++) { + command_wake(finfo, get_iterative_value(1)); + command_wait(finfo, get_iterative_value(0)); + } + + for (i = 1; i <= NUM_THREADS; i++) + command_wake(finfo, get_endpoint_value(i)); + + if (errs) { + nerrs += errs; + printf("[FAIL]\tIncorrect cases were found -- (%d / %u).\n", + errs, ITERATIONS * NUM_THREADS); + } else { + printf("[OK]\tNo incorrect case was found.\n"); + } + + free(finfo); +} + +/* Ptrace test */ + +static bool ptracee_state_perm; + +static int inject_tiledata(pid_t target) +{ + struct iovec iov; + + iov.iov_base = xsave_buffer; + iov.iov_len = xsave_size; + + clear_xstate_header(xsave_buffer); + set_xstatebv(xsave_buffer, XFEATURE_MASK_XTILEDATA); + set_rand_tiledata(xsave_buffer + xsave_xtiledata_offset); + memcpy(tiledata, xsave_buffer + xsave_xtiledata_offset, xtiledata_size); + + if (ptrace(PTRACE_SETREGSET, target, (uint32_t)NT_X86_XSTATE, &iov)) { + if (errno != EFAULT) + err(1, "PTRACE_SETREGSET"); + else + return errno; + } + + if (ptrace(PTRACE_GETREGSET, target, (uint32_t)NT_X86_XSTATE, &iov)) + err(1, "PTRACE_GETREGSET"); + + if (!memcmp(tiledata, xsave_buffer + xsave_xtiledata_offset, xtiledata_size)) + return 0; + else + return -1; +} + +static void test_tile_write(void) +{ + int status, rc; + pid_t child; + + child = fork(); + if (child < 0) { + err(1, "fork"); + } else if (!child) { + if (ptracee_state_perm) + enable_tiledata(); + + if (ptrace(PTRACE_TRACEME, 0, NULL, NULL)) + err(1, "PTRACE_TRACEME"); + + raise(SIGTRAP); + _exit(0); + } + + do { + wait(&status); + } while (WSTOPSIG(status) != SIGTRAP); + + printf("\tInject tile data with%s ARCH_SET_STATE_ENABLE\n", + ptracee_state_perm ? "" : "out"); + + rc = inject_tiledata(child); + if (rc == EFAULT && !ptracee_state_perm) { + printf("[OK]\tTile data was not written on ptracee.\n"); + } else if (!rc && ptracee_state_perm) { + printf("[OK]\tTile data was written on ptracee.\n"); + } else { + nerrs++; + printf("[FAIL]\tTile data was %swritten on ptracee.\n", + rc ? "not " : ""); + } + + ptrace(PTRACE_DETACH, child, NULL, NULL); + wait(&status); + if (!WIFEXITED(status) || WEXITSTATUS(status)) + err(1, "ptrace test"); +} + +static void test_ptrace(void) +{ + printf("[RUN]\tCheck ptrace() to inject tile data.\n"); + + ptracee_state_perm = false; + test_tile_write(); + + ptracee_state_perm = true; + test_tile_write(); +} + +/* Signal handling test */ + +static bool init_tiledata, load_tiledata; +static volatile bool signaled, sigstk_prefill; + +#define SIGFRAME_TILEDATA_SIGNATURE 0xEE + +static void handle_sigstk_prefill(int sig, siginfo_t *info, void *ctx_void) +{ + void *xbuf = ((ucontext_t *)ctx_void)->uc_mcontext.fpregs; + struct _fpx_sw_bytes *sw_bytes = get_fpx_sw_bytes(xsave); + + if (sw_bytes->xstate_size >= (xsave_xtiledata_offset + xtiledata_size)) { + memset(xbuf + xsave_xtiledata_offset, SIGFRAME_TILEDATA_SIGNATURE, + xtiledata_size); + } + + sigstk_prefill = true; +} + +static void handle_signal(int sig, siginfo_t *info, void *ctx_void) +{ + bool tiledata_area, tiledata_bit, tiledata_inuse; + void *xbuf = ((ucontext_t *)ctx_void)->uc_mcontext.fpregs; + struct _fpx_sw_bytes *sw_bytes = get_fpx_sw_bytes(xbuf); + char d = SIGFRAME_TILEDATA_SIGNATURE; + int i; + + printf("\tAt signal delivery,\n"); + + /* Check SW reserved data in the buffer: */ + if ((sw_bytes->xstate_size >= (xsave_xtiledata_offset + xtiledata_size)) && + (get_fpx_sw_bytes_xstatebv(xbuf) & XFEATURE_MASK_XTILEDATA)) { + printf("[OK]\tValid xstate size and mask in the SW data of xstate buffer\n"); + } else { + errs++; + printf("[FAIL]\tInvalid xstate size and/or mask in the SW data of xstate buffer\n"); + } + + /* Check XSAVE buffer header: */ + tiledata_inuse = (load_tiledata && !init_tiledata); + tiledata_bit = get_xstatebv(xbuf) & XFEATURE_MASK_XTILEDATA; + + if (tiledata_bit == tiledata_inuse) { + printf("[OK]\tTiledata bit is %sset in XSTATE_BV of xstate buffer.\n", + tiledata_bit ? "" : "not "); + } else { + errs++; + printf("[FAIL]\tTiledata bit is %sset in XSTATE_BV of xstate buffer.\n", + tiledata_bit ? "" : "not "); + } + + /* + * Check the sigframe data: + */ + + tiledata_inuse = (load_tiledata && !init_tiledata); + tiledata_area = false; + if (sw_bytes->xstate_size >= (xsave_xtiledata_offset + xtiledata_size)) { + for (i = 0; i < xtiledata_size; i++) { + if (memcmp(xbuf + xsave_xtiledata_offset + i, &d, 1)) { + tiledata_area = true; + break; + } + } + } + + if (tiledata_area == tiledata_inuse) { + printf("[OK]\tTiledata is %ssaved in signal buffer.\n", + tiledata_area ? "" : "not "); + } else { + errs++; + printf("[FAIL]\tTiledata is %ssaved in signal buffer.\n", + tiledata_area ? "" : "not "); + } + + /* Load random tiledata to test sigreturn: */ + clear_xstate_header(xsave_buffer); + set_xstatebv(xsave_buffer, XFEATURE_MASK_XTILEDATA); + set_rand_tiledata(xsave_buffer + xsave_xtiledata_offset); + xrstor_safe(xsave_buffer, -1, -1); + signaled = true; +} + +static void test_signal_handling(void) +{ + pid_t child; + + signaled = false; + sigstk_prefill = false; + + child = fork(); + if (child < 0) { + err(1, "fork"); + } else if (child > 0) { + do { + int status; + + wait(&status); + if (WIFSTOPPED(status)) + kill(child, SIGCONT); + else if (WIFEXITED(status) && !WEXITSTATUS(status)) + break; + else + err(1, "signal test child"); + } while (1); + return; + } + + printf("\tBefore signal, load tile data -- %s", load_tiledata ? "yes, " : "no:\n"); + if (load_tiledata) + printf("re-initialized -- %s:\n", init_tiledata ? "yes" : "no"); + + /* + * Raise SIGUSR1 to pre-fill sig stack. Also, load tiledata to size the pre-fill. + */ + + if (load_tiledata) { + clear_xstate_header(xsave_buffer); + set_xstatebv(xsave_buffer, XFEATURE_MASK_XTILEDATA); + xrstor_safe(xsave_buffer, -1, -1); + } + + raise(SIGUSR1); + if (!sigstk_prefill) + err(1, "SIGUSR1"); + + /* + * Raise SIGALRM to test AMX state handling in signal delivery. Set up the state and + * data before the test. + */ + + if (load_tiledata) { + clear_xstate_header(xsave_buffer); + set_xstatebv(xsave_buffer, XFEATURE_MASK_XTILEDATA); + set_rand_tiledata(xsave_buffer + xsave_xtiledata_offset); + xrstor_safe(xsave_buffer, -1, -1); + + if (init_tiledata) { + clear_xstate_header(xsave_buffer); + set_xstatebv(xsave_buffer, 0); + xrstor_safe(xsave_buffer, -1, -1); + memset(tiledata, 0, xtiledata_size); + } else { + memcpy(tiledata, xsave_buffer + xsave_xtiledata_offset, + xtiledata_size); + } + } else { + memset(tiledata, 0, xtiledata_size); + } + + raise(SIGALRM); + if (!signaled) + err(1, "SIGALRM"); + + printf("\tReturn from signal handler,\n"); + xsave(xsave_buffer, XFEATURE_MASK_XTILEDATA, 0); + if (memcmp(tiledata, xsave_buffer + xsave_xtiledata_offset, xtiledata_size)) { + errs++; + printf("[FAIL]\tTiledata is not restored.\n"); + } else { + printf("[OK]\tTiledata is restored.\n"); + } + + if (errs) + nerrs++; + _exit(0); +} + +static void test_signal(void) +{ + printf("[RUN]\tCheck tile data state in signal path:\n"); + + sethandler(SIGALRM, handle_signal, 0); + sethandler(SIGUSR1, handle_sigstk_prefill, 0); + + load_tiledata = false; + init_tiledata = false; + errs = 0; + test_signal_handling(); + + load_tiledata = true; + init_tiledata = false; + errs = 0; + test_signal_handling(); + + load_tiledata = true; + init_tiledata = true; + errs = 0; + test_signal_handling(); + + clearhandler(SIGALRM); + clearhandler(SIGUSR1); +} + +int main(int argc, char **argv) +{ + cpu_set_t cpuset; + + if (argc == 2) { + int ret; + + if (strcmp(argv[1], TEST_EXECV_ARG)) + return 0; + + printf("\tRun after execv().\n"); + + xsave_buffer = alloc_xsave_buffer(); + clear_xstate_header(xsave_buffer); + + set_xstatebv(xsave_buffer, XFEATURE_MASK_XTILE); + set_rand_tiledata(xsave_buffer + xsave_xtiledata_offset); + + sethandler(SIGILL, handle_noperm, 0); + + if (xrstor_safe(xsave_buffer, -1, -1)) { + printf("[FAIL]\tSucceeded after execv().\n"); + ret = 1; + } else { + printf("[OK]\tBlocked after execv().\n"); + ret = 0; + } + + clearhandler(SIGILL); + free(xsave_buffer); + _exit(ret); + } + + /* Check hardware availability at first */ + + if (!check_xtile()) { + printf("%s is disabled.\n", noxsave ? "XSAVE" : "AMX"); + return 0; + } + + check_cpuid(); + + xsave_buffer = alloc_xsave_buffer(); + clear_xstate_header(xsave_buffer); + + tiledata = malloc(xtiledata_size); + if (!tiledata) + err(1, "malloc()"); + + tilecfg = malloc(xtilecfg_size); + if (!tilecfg) + err(1, "malloc()"); + set_tilecfg(tilecfg); + + nerrs = 0; + + sethandler(SIGILL, handle_noperm, 0); + + CPU_ZERO(&cpuset); + CPU_SET(0, &cpuset); + + if (sched_setaffinity(0, sizeof(cpuset), &cpuset) != 0) + err(1, "sched_setaffinity to CPU 0"); + + test_arch_prctl(argc, argv); + test_ptrace(); + + enable_tiledata(); + test_context_switch(); + test_fork(); + test_signal(); + + clearhandler(SIGILL); + + free(tilecfg); + free(tiledata); + free(xsave_buffer); + return nerrs ? 1 : 0; +} -- 2.17.1

4 years, 2 months

1
0
0 0

[PATCH] selftests/net: Use kselftest skip code for skipped tests

by Po-Hsu Lin

There are several test cases in the net directory are still using exit 0 or exit 1 when they need to be skipped. Use kselftest framework skip code instead so it can help us to distinguish the return status. Criterion to filter out what should be fixed in net directory: grep -r "exit [01]" -B1 | grep -i skip This change might cause some false-positives if people are running these test scripts directly and only checking their return codes, which will change from 0 to 4. However I think the impact should be small as most of our scripts here are already using this skip code. And there will be no such issue if running them with the kselftest framework. Signed-off-by: Po-Hsu Lin <po-hsu.lin(a)canonical.com> --- tools/testing/selftests/net/fcnal-test.sh | 5 +++- tools/testing/selftests/net/fib_rule_tests.sh | 7 ++++-- .../selftests/net/forwarding/devlink_lib.sh | 15 +++++++----- tools/testing/selftests/net/forwarding/lib.sh | 27 ++++++++++++---------- .../selftests/net/forwarding/router_mpath_nh.sh | 2 +- .../net/forwarding/router_mpath_nh_res.sh | 2 +- tools/testing/selftests/net/run_afpackettests | 5 +++- .../selftests/net/srv6_end_dt46_l3vpn_test.sh | 9 +++++--- .../selftests/net/srv6_end_dt4_l3vpn_test.sh | 9 +++++--- .../selftests/net/srv6_end_dt6_l3vpn_test.sh | 9 +++++--- tools/testing/selftests/net/unicast_extensions.sh | 5 +++- .../testing/selftests/net/vrf_strict_mode_test.sh | 9 +++++--- 12 files changed, 67 insertions(+), 37 deletions(-) diff --git a/tools/testing/selftests/net/fcnal-test.sh b/tools/testing/selftests/net/fcnal-test.sh index a8ad928..9074e25 100755 --- a/tools/testing/selftests/net/fcnal-test.sh +++ b/tools/testing/selftests/net/fcnal-test.sh @@ -37,6 +37,9 @@ # # server / client nomenclature relative to ns-A +# Kselftest framework requirement - SKIP code is 4. +ksft_skip=4 + VERBOSE=0 NSA_DEV=eth1 @@ -3946,7 +3949,7 @@ fi which nettest >/dev/null if [ $? -ne 0 ]; then echo "'nettest' command not found; skipping tests" - exit 0 + exit $ksft_skip fi declare -i nfail=0 diff --git a/tools/testing/selftests/net/fib_rule_tests.sh b/tools/testing/selftests/net/fib_rule_tests.sh index a93e6b6..43ea840 100755 --- a/tools/testing/selftests/net/fib_rule_tests.sh +++ b/tools/testing/selftests/net/fib_rule_tests.sh @@ -3,6 +3,9 @@ # This test is for checking IPv4 and IPv6 FIB rules API +# Kselftest framework requirement - SKIP code is 4. +ksft_skip=4 + ret=0 PAUSE_ON_FAIL=${PAUSE_ON_FAIL:=no} @@ -238,12 +241,12 @@ run_fibrule_tests() if [ "$(id -u)" -ne 0 ];then echo "SKIP: Need root privileges" - exit 0 + exit $ksft_skip fi if [ ! -x "$(command -v ip)" ]; then echo "SKIP: Could not run test without ip tool" - exit 0 + exit $ksft_skip fi # start clean diff --git a/tools/testing/selftests/net/forwarding/devlink_lib.sh b/tools/testing/selftests/net/forwarding/devlink_lib.sh index 13d3d44..2c14a86 100644 --- a/tools/testing/selftests/net/forwarding/devlink_lib.sh +++ b/tools/testing/selftests/net/forwarding/devlink_lib.sh @@ -1,6 +1,9 @@ #!/bin/bash # SPDX-License-Identifier: GPL-2.0 +# Kselftest framework requirement - SKIP code is 4. +ksft_skip=4 + ############################################################################## # Defines @@ -9,11 +12,11 @@ if [[ ! -v DEVLINK_DEV ]]; then | jq -r '.port | keys[]' | cut -d/ -f-2) if [ -z "$DEVLINK_DEV" ]; then echo "SKIP: ${NETIFS[p1]} has no devlink device registered for it" - exit 1 + exit $ksft_skip fi if [[ "$(echo $DEVLINK_DEV | grep -c pci)" -eq 0 ]]; then echo "SKIP: devlink device's bus is not PCI" - exit 1 + exit $ksft_skip fi DEVLINK_VIDDID=$(lspci -s $(echo $DEVLINK_DEV | cut -d"/" -f2) \ @@ -22,7 +25,7 @@ elif [[ ! -z "$DEVLINK_DEV" ]]; then devlink dev show $DEVLINK_DEV &> /dev/null if [ $? -ne 0 ]; then echo "SKIP: devlink device \"$DEVLINK_DEV\" not found" - exit 1 + exit $ksft_skip fi fi @@ -32,19 +35,19 @@ fi devlink help 2>&1 | grep resource &> /dev/null if [ $? -ne 0 ]; then echo "SKIP: iproute2 too old, missing devlink resource support" - exit 1 + exit $ksft_skip fi devlink help 2>&1 | grep trap &> /dev/null if [ $? -ne 0 ]; then echo "SKIP: iproute2 too old, missing devlink trap support" - exit 1 + exit $ksft_skip fi devlink dev help 2>&1 | grep info &> /dev/null if [ $? -ne 0 ]; then echo "SKIP: iproute2 too old, missing devlink dev info support" - exit 1 + exit $ksft_skip fi ############################################################################## diff --git a/tools/testing/selftests/net/forwarding/lib.sh b/tools/testing/selftests/net/forwarding/lib.sh index 42e28c9..e7fc5c3 100644 --- a/tools/testing/selftests/net/forwarding/lib.sh +++ b/tools/testing/selftests/net/forwarding/lib.sh @@ -4,6 +4,9 @@ ############################################################################## # Defines +# Kselftest framework requirement - SKIP code is 4. +ksft_skip=4 + # Can be overridden by the configuration file. PING=${PING:=ping} PING6=${PING6:=ping6} @@ -38,7 +41,7 @@ check_tc_version() tc -j &> /dev/null if [[ $? -ne 0 ]]; then echo "SKIP: iproute2 too old; tc is missing JSON support" - exit 1 + exit $ksft_skip fi } @@ -51,7 +54,7 @@ check_tc_mpls_support() matchall action pipe &> /dev/null if [[ $? -ne 0 ]]; then echo "SKIP: iproute2 too old; tc is missing MPLS support" - return 1 + return $ksft_skip fi tc filter del dev $dev ingress protocol mpls_uc pref 1 handle 1 \ matchall @@ -69,7 +72,7 @@ check_tc_mpls_lse_stats() if [[ $? -ne 0 ]]; then echo "SKIP: iproute2 too old; tc-flower is missing extended MPLS support" - return 1 + return $ksft_skip fi tc -j filter show dev $dev ingress protocol mpls_uc | jq . &> /dev/null @@ -79,7 +82,7 @@ check_tc_mpls_lse_stats() if [[ $ret -ne 0 ]]; then echo "SKIP: iproute2 too old; tc-flower produces invalid json output for extended MPLS filters" - return 1 + return $ksft_skip fi } @@ -88,7 +91,7 @@ check_tc_shblock_support() tc filter help 2>&1 | grep block &> /dev/null if [[ $? -ne 0 ]]; then echo "SKIP: iproute2 too old; tc is missing shared block support" - exit 1 + exit $ksft_skip fi } @@ -97,7 +100,7 @@ check_tc_chain_support() tc help 2>&1|grep chain &> /dev/null if [[ $? -ne 0 ]]; then echo "SKIP: iproute2 too old; tc is missing chain support" - exit 1 + exit $ksft_skip fi } @@ -106,7 +109,7 @@ check_tc_action_hw_stats_support() tc actions help 2>&1 | grep -q hw_stats if [[ $? -ne 0 ]]; then echo "SKIP: iproute2 too old; tc is missing action hw_stats support" - exit 1 + exit $ksft_skip fi } @@ -115,13 +118,13 @@ check_ethtool_lanes_support() ethtool --help 2>&1| grep lanes &> /dev/null if [[ $? -ne 0 ]]; then echo "SKIP: ethtool too old; it is missing lanes support" - exit 1 + exit $ksft_skip fi } if [[ "$(id -u)" -ne 0 ]]; then echo "SKIP: need root privileges" - exit 0 + exit $ksft_skip fi if [[ "$CHECK_TC" = "yes" ]]; then @@ -134,7 +137,7 @@ require_command() if [[ ! -x "$(command -v "$cmd")" ]]; then echo "SKIP: $cmd not installed" - exit 1 + exit $ksft_skip fi } @@ -143,7 +146,7 @@ require_command $MZ if [[ ! -v NUM_NETIFS ]]; then echo "SKIP: importer does not define \"NUM_NETIFS\"" - exit 1 + exit $ksft_skip fi ############################################################################## @@ -203,7 +206,7 @@ for ((i = 1; i <= NUM_NETIFS; ++i)); do ip link show dev ${NETIFS[p$i]} &> /dev/null if [[ $? -ne 0 ]]; then echo "SKIP: could not find all required interfaces" - exit 1 + exit $ksft_skip fi done diff --git a/tools/testing/selftests/net/forwarding/router_mpath_nh.sh b/tools/testing/selftests/net/forwarding/router_mpath_nh.sh index 76efb1f..a0d612e 100755 --- a/tools/testing/selftests/net/forwarding/router_mpath_nh.sh +++ b/tools/testing/selftests/net/forwarding/router_mpath_nh.sh @@ -411,7 +411,7 @@ ping_ipv6() ip nexthop ls >/dev/null 2>&1 if [ $? -ne 0 ]; then echo "Nexthop objects not supported; skipping tests" - exit 0 + exit $ksft_skip fi trap cleanup EXIT diff --git a/tools/testing/selftests/net/forwarding/router_mpath_nh_res.sh b/tools/testing/selftests/net/forwarding/router_mpath_nh_res.sh index 4898dd4..cb08ffe 100755 --- a/tools/testing/selftests/net/forwarding/router_mpath_nh_res.sh +++ b/tools/testing/selftests/net/forwarding/router_mpath_nh_res.sh @@ -386,7 +386,7 @@ ping_ipv6() ip nexthop ls >/dev/null 2>&1 if [ $? -ne 0 ]; then echo "Nexthop objects not supported; skipping tests" - exit 0 + exit $ksft_skip fi trap cleanup EXIT diff --git a/tools/testing/selftests/net/run_afpackettests b/tools/testing/selftests/net/run_afpackettests index 8b42e8b..a59cb6a 100755 --- a/tools/testing/selftests/net/run_afpackettests +++ b/tools/testing/selftests/net/run_afpackettests @@ -1,9 +1,12 @@ #!/bin/sh # SPDX-License-Identifier: GPL-2.0 +# Kselftest framework requirement - SKIP code is 4. +ksft_skip=4 + if [ $(id -u) != 0 ]; then echo $msg must be run as root >&2 - exit 0 + exit $ksft_skip fi ret=0 diff --git a/tools/testing/selftests/net/srv6_end_dt46_l3vpn_test.sh b/tools/testing/selftests/net/srv6_end_dt46_l3vpn_test.sh index 75ada17..aebaab8 100755 --- a/tools/testing/selftests/net/srv6_end_dt46_l3vpn_test.sh +++ b/tools/testing/selftests/net/srv6_end_dt46_l3vpn_test.sh @@ -193,6 +193,9 @@ # +---------------------------------------------------+ # +# Kselftest framework requirement - SKIP code is 4. +ksft_skip=4 + readonly LOCALSID_TABLE_ID=90 readonly IPv6_RT_NETWORK=fd00 readonly IPv6_HS_NETWORK=cafe @@ -543,18 +546,18 @@ host_vpn_isolation_tests() if [ "$(id -u)" -ne 0 ];then echo "SKIP: Need root privileges" - exit 0 + exit $ksft_skip fi if [ ! -x "$(command -v ip)" ]; then echo "SKIP: Could not run test without ip tool" - exit 0 + exit $ksft_skip fi modprobe vrf &>/dev/null if [ ! -e /proc/sys/net/vrf/strict_mode ]; then echo "SKIP: vrf sysctl does not exist" - exit 0 + exit $ksft_skip fi cleanup &>/dev/null diff --git a/tools/testing/selftests/net/srv6_end_dt4_l3vpn_test.sh b/tools/testing/selftests/net/srv6_end_dt4_l3vpn_test.sh index ad7a9fc..1003119 100755 --- a/tools/testing/selftests/net/srv6_end_dt4_l3vpn_test.sh +++ b/tools/testing/selftests/net/srv6_end_dt4_l3vpn_test.sh @@ -163,6 +163,9 @@ # +---------------------------------------------------+ # +# Kselftest framework requirement - SKIP code is 4. +ksft_skip=4 + readonly LOCALSID_TABLE_ID=90 readonly IPv6_RT_NETWORK=fd00 readonly IPv4_HS_NETWORK=10.0.0 @@ -464,18 +467,18 @@ host_vpn_isolation_tests() if [ "$(id -u)" -ne 0 ];then echo "SKIP: Need root privileges" - exit 0 + exit $ksft_skip fi if [ ! -x "$(command -v ip)" ]; then echo "SKIP: Could not run test without ip tool" - exit 0 + exit $ksft_skip fi modprobe vrf &>/dev/null if [ ! -e /proc/sys/net/vrf/strict_mode ]; then echo "SKIP: vrf sysctl does not exist" - exit 0 + exit $ksft_skip fi cleanup &>/dev/null diff --git a/tools/testing/selftests/net/srv6_end_dt6_l3vpn_test.sh b/tools/testing/selftests/net/srv6_end_dt6_l3vpn_test.sh index 68708f5..b9b06ef 100755 --- a/tools/testing/selftests/net/srv6_end_dt6_l3vpn_test.sh +++ b/tools/testing/selftests/net/srv6_end_dt6_l3vpn_test.sh @@ -164,6 +164,9 @@ # +---------------------------------------------------+ # +# Kselftest framework requirement - SKIP code is 4. +ksft_skip=4 + readonly LOCALSID_TABLE_ID=90 readonly IPv6_RT_NETWORK=fd00 readonly IPv6_HS_NETWORK=cafe @@ -472,18 +475,18 @@ host_vpn_isolation_tests() if [ "$(id -u)" -ne 0 ];then echo "SKIP: Need root privileges" - exit 0 + exit $ksft_skip fi if [ ! -x "$(command -v ip)" ]; then echo "SKIP: Could not run test without ip tool" - exit 0 + exit $ksft_skip fi modprobe vrf &>/dev/null if [ ! -e /proc/sys/net/vrf/strict_mode ]; then echo "SKIP: vrf sysctl does not exist" - exit 0 + exit $ksft_skip fi cleanup &>/dev/null diff --git a/tools/testing/selftests/net/unicast_extensions.sh b/tools/testing/selftests/net/unicast_extensions.sh index 66354cd..2d10cca 100755 --- a/tools/testing/selftests/net/unicast_extensions.sh +++ b/tools/testing/selftests/net/unicast_extensions.sh @@ -28,12 +28,15 @@ # These tests provide an easy way to flip the expected result of any # of these behaviors for testing kernel patches that change them. +# Kselftest framework requirement - SKIP code is 4. +ksft_skip=4 + # nettest can be run from PATH or from same directory as this selftest if ! which nettest >/dev/null; then PATH=$PWD:$PATH if ! which nettest >/dev/null; then echo "'nettest' command not found; skipping tests" - exit 0 + exit $ksft_skip fi fi diff --git a/tools/testing/selftests/net/vrf_strict_mode_test.sh b/tools/testing/selftests/net/vrf_strict_mode_test.sh index 18b982d..865d53c 100755 --- a/tools/testing/selftests/net/vrf_strict_mode_test.sh +++ b/tools/testing/selftests/net/vrf_strict_mode_test.sh @@ -3,6 +3,9 @@ # This test is designed for testing the new VRF strict_mode functionality. +# Kselftest framework requirement - SKIP code is 4. +ksft_skip=4 + ret=0 # identifies the "init" network namespace which is often called root network @@ -371,18 +374,18 @@ vrf_strict_mode_check_support() if [ "$(id -u)" -ne 0 ];then echo "SKIP: Need root privileges" - exit 0 + exit $ksft_skip fi if [ ! -x "$(command -v ip)" ]; then echo "SKIP: Could not run test without ip tool" - exit 0 + exit $ksft_skip fi modprobe vrf &>/dev/null if [ ! -e /proc/sys/net/vrf/strict_mode ]; then echo "SKIP: vrf sysctl does not exist" - exit 0 + exit $ksft_skip fi cleanup &> /dev/null -- 2.7.4

4 years, 2 months

3
4
0 0

[PATCH] selftests: openat2: Fix testing failure for O_LARGEFILE flag

by Baolin Wang

When running the openat2 test suite on ARM64 platform, we got below failure, since the definition of the O_LARGEFILE is different on ARM64. So we can set the correct O_LARGEFILE definition on ARM64 to fix this issue. Signed-off-by: Baolin Wang <baolin.wang(a)linux.alibaba.com> --- tools/testing/selftests/openat2/openat2_test.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/tools/testing/selftests/openat2/openat2_test.c b/tools/testing/selftests/openat2/openat2_test.c index d7ec1e7..1bddbe9 100644 --- a/tools/testing/selftests/openat2/openat2_test.c +++ b/tools/testing/selftests/openat2/openat2_test.c @@ -22,7 +22,11 @@ * XXX: This is wrong on {mips, parisc, powerpc, sparc}. */ #undef O_LARGEFILE +#ifdef __aarch64__ +#define O_LARGEFILE 0x20000 +#else #define O_LARGEFILE 0x8000 +#endif struct open_how_ext { struct open_how inner; -- 1.8.3.1

4 years, 2 months

4
9
0 0

[PATCH v2] selftests: openat2: Fix testing failure for O_LARGEFILE flag

by Baolin Wang

When running the openat2 test suite on ARM64 platform, we got below failure, since the definition of the O_LARGEFILE is different on ARM64. So we can set the correct O_LARGEFILE definition on ARM64 to fix this issue. "openat2 unexpectedly returned # 3['.../tools/testing/selftests/openat2'] with 208000 (!= 208000) not ok 102 openat2 with incompatible flags (O_PATH | O_LARGEFILE) fails with -22 (Invalid argument)" Signed-off-by: Baolin Wang <baolin.wang(a)linux.alibaba.com> Reviewed-by: Aleksa Sarai <cyphar(a)cyphar.com> Acked-by: Christian Brauner <christian.brauner(a)ubuntu.com> --- Changes from v1: - Add reviewed and acked tags from Aleksa and Christian. - Add failure logs in the commit log. --- tools/testing/selftests/openat2/openat2_test.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/tools/testing/selftests/openat2/openat2_test.c b/tools/testing/selftests/openat2/openat2_test.c index d7ec1e7..1bddbe9 100644 --- a/tools/testing/selftests/openat2/openat2_test.c +++ b/tools/testing/selftests/openat2/openat2_test.c @@ -22,7 +22,11 @@ * XXX: This is wrong on {mips, parisc, powerpc, sparc}. */ #undef O_LARGEFILE +#ifdef __aarch64__ +#define O_LARGEFILE 0x20000 +#else #define O_LARGEFILE 0x8000 +#endif struct open_how_ext { struct open_how inner; -- 1.8.3.1

4 years, 2 months

1
0
0 0

[PATCH bpf-next 0/5] bpf: implement variadic printk helper

by Dave Marchevsky

This series introduces a new helper, bpf_trace_vprintk, which functions like bpf_trace_printk but supports > 3 arguments via a pseudo-vararg u64 array. A libbpf convienience macro, bpf_vprintk, is added to support true vararg calling style. Helper functions and macros added during the implementation of bpf_seq_printf and bpf_snprintf do most of the heavy lifting for bpf_trace_vprintk. There's no novel format string wrangling here. Usecase here is straightforward: Giving BPF program writers a more powerful printk will ease development of BPF programs, particularly during debugging and testing, where printk tends to be used. Hypothetically libbpf's bpf_printk convenience macro could be modified to use bpf_trace_vprintk under the hood. This patchset does not attempt to do this, though, nor am I confident that it's desired. This feature was proposed by Andrii in libbpf mirror's issue tracker [1]. [1] https://github.com/libbpf/libbpf/issues/315 Dave Marchevsky (5): bpf: merge printk and seq_printf VARARG max macros bpf: add bpf_trace_vprintk helper libbpf: Add bpf_vprintk convenience macro bpftool: only probe trace_vprintk feature in 'full' mode selftests/bpf: add trace_vprintk test prog include/linux/bpf.h | 3 + include/uapi/linux/bpf.h | 23 ++++++ kernel/bpf/core.c | 5 ++ kernel/bpf/helpers.c | 6 +- kernel/trace/bpf_trace.c | 54 ++++++++++++- tools/bpf/bpftool/feature.c | 1 + tools/include/uapi/linux/bpf.h | 23 ++++++ tools/lib/bpf/bpf_helpers.h | 18 +++++ tools/testing/selftests/bpf/Makefile | 3 +- .../selftests/bpf/prog_tests/trace_vprintk.c | 75 +++++++++++++++++++ .../selftests/bpf/progs/trace_vprintk.c | 25 +++++++ tools/testing/selftests/bpf/test_bpftool.py | 22 +++--- 12 files changed, 238 insertions(+), 20 deletions(-) create mode 100644 tools/testing/selftests/bpf/prog_tests/trace_vprintk.c create mode 100644 tools/testing/selftests/bpf/progs/trace_vprintk.c -- 2.30.2

4 years, 2 months

3
16
0 0

[PATCH linux-next] selftests/powerpc: remove duplicate include

by CGEL

From: Changcheng Deng <deng.changcheng(a)zte.com.cn> Clean up the following includecheck warning: ./tools/testing/selftests/powerpc/tm/tm-poison.c: inttypes.h is included more than once. No functional change. Reported-by: Zeal Robot <zealci(a)zte.com.cn> Signed-off-by: Changcheng Deng <deng.changcheng(a)zte.com.cn> --- tools/testing/selftests/powerpc/tm/tm-poison.c | 1 - 1 file changed, 1 deletion(-) diff --git a/tools/testing/selftests/powerpc/tm/tm-poison.c b/tools/testing/selftests/powerpc/tm/tm-poison.c index 29e5f26..27c083a 100644 --- a/tools/testing/selftests/powerpc/tm/tm-poison.c +++ b/tools/testing/selftests/powerpc/tm/tm-poison.c @@ -20,7 +20,6 @@ #include <sched.h> #include <sys/types.h> #include <signal.h> -#include <inttypes.h> #include "tm.h" -- 1.8.3.1

4 years, 2 months

3
3
0 0

[PATCH linux-next] tools:test_xdp_noinline: fix boolreturn.cocci warnings

by CGEL

From: Jing Yangyang <jing.yangyang(a)zte.com.cn> Return statements in functions returning bool should use true/false instead of 1/0. Reported-by: Zeal Robot <zealci(a)zte.com.cn> Signed-off-by: Jing Yangyang <jing.yangyang(a)zte.com.cn> --- .../selftests/bpf/progs/test_xdp_noinline.c | 42 +++++++++++----------- 1 file changed, 21 insertions(+), 21 deletions(-) diff --git a/tools/testing/selftests/bpf/progs/test_xdp_noinline.c b/tools/testing/selftests/bpf/progs/test_xdp_noinline.c index 3a67921..37075f8 100644 --- a/tools/testing/selftests/bpf/progs/test_xdp_noinline.c +++ b/tools/testing/selftests/bpf/progs/test_xdp_noinline.c @@ -239,7 +239,7 @@ bool parse_udp(void *data, void *data_end, udp = data + off; if (udp + 1 > data_end) - return 0; + return false; if (!is_icmp) { pckt->flow.port16[0] = udp->source; pckt->flow.port16[1] = udp->dest; @@ -247,7 +247,7 @@ bool parse_udp(void *data, void *data_end, pckt->flow.port16[0] = udp->dest; pckt->flow.port16[1] = udp->source; } - return 1; + return true; } static __attribute__ ((noinline)) @@ -261,7 +261,7 @@ bool parse_tcp(void *data, void *data_end, tcp = data + off; if (tcp + 1 > data_end) - return 0; + return false; if (tcp->syn) pckt->flags |= (1 << 1); if (!is_icmp) { @@ -271,7 +271,7 @@ bool parse_tcp(void *data, void *data_end, pckt->flow.port16[0] = tcp->dest; pckt->flow.port16[1] = tcp->source; } - return 1; + return true; } static __attribute__ ((noinline)) @@ -287,7 +287,7 @@ bool encap_v6(struct xdp_md *xdp, struct ctl_value *cval, void *data; if (bpf_xdp_adjust_head(xdp, 0 - (int)sizeof(struct ipv6hdr))) - return 0; + return false; data = (void *)(long)xdp->data; data_end = (void *)(long)xdp->data_end; new_eth = data; @@ -295,7 +295,7 @@ bool encap_v6(struct xdp_md *xdp, struct ctl_value *cval, old_eth = data + sizeof(struct ipv6hdr); if (new_eth + 1 > data_end || old_eth + 1 > data_end || ip6h + 1 > data_end) - return 0; + return false; memcpy(new_eth->eth_dest, cval->mac, 6); memcpy(new_eth->eth_source, old_eth->eth_dest, 6); new_eth->eth_proto = 56710; @@ -314,7 +314,7 @@ bool encap_v6(struct xdp_md *xdp, struct ctl_value *cval, ip6h->saddr.in6_u.u6_addr32[2] = 3; ip6h->saddr.in6_u.u6_addr32[3] = ip_suffix; memcpy(ip6h->daddr.in6_u.u6_addr32, dst->dstv6, 16); - return 1; + return true; } static __attribute__ ((noinline)) @@ -335,7 +335,7 @@ bool encap_v4(struct xdp_md *xdp, struct ctl_value *cval, ip_suffix <<= 15; ip_suffix ^= pckt->flow.src; if (bpf_xdp_adjust_head(xdp, 0 - (int)sizeof(struct iphdr))) - return 0; + return false; data = (void *)(long)xdp->data; data_end = (void *)(long)xdp->data_end; new_eth = data; @@ -343,7 +343,7 @@ bool encap_v4(struct xdp_md *xdp, struct ctl_value *cval, old_eth = data + sizeof(struct iphdr); if (new_eth + 1 > data_end || old_eth + 1 > data_end || iph + 1 > data_end) - return 0; + return false; memcpy(new_eth->eth_dest, cval->mac, 6); memcpy(new_eth->eth_source, old_eth->eth_dest, 6); new_eth->eth_proto = 8; @@ -367,8 +367,8 @@ bool encap_v4(struct xdp_md *xdp, struct ctl_value *cval, csum += *next_iph_u16++; iph->check = ~((csum & 0xffff) + (csum >> 16)); if (bpf_xdp_adjust_head(xdp, (int)sizeof(struct iphdr))) - return 0; - return 1; + return false; + return true; } static __attribute__ ((noinline)) @@ -386,10 +386,10 @@ bool decap_v6(struct xdp_md *xdp, void **data, void **data_end, bool inner_v4) else new_eth->eth_proto = 56710; if (bpf_xdp_adjust_head(xdp, (int)sizeof(struct ipv6hdr))) - return 0; + return false; *data = (void *)(long)xdp->data; *data_end = (void *)(long)xdp->data_end; - return 1; + return true; } static __attribute__ ((noinline)) @@ -404,10 +404,10 @@ bool decap_v4(struct xdp_md *xdp, void **data, void **data_end) memcpy(new_eth->eth_dest, old_eth->eth_dest, 6); new_eth->eth_proto = 8; if (bpf_xdp_adjust_head(xdp, (int)sizeof(struct iphdr))) - return 0; + return false; *data = (void *)(long)xdp->data; *data_end = (void *)(long)xdp->data_end; - return 1; + return true; } static __attribute__ ((noinline)) @@ -564,22 +564,22 @@ static bool get_packet_dst(struct real_definition **real, hash = get_packet_hash(pckt, hash_16bytes); if (hash != 0x358459b7 /* jhash of ipv4 packet */ && hash != 0x2f4bc6bb /* jhash of ipv6 packet */) - return 0; + return false; key = 2 * vip_info->vip_num + hash % 2; real_pos = bpf_map_lookup_elem(&ch_rings, &key); if (!real_pos) - return 0; + return false; key = *real_pos; *real = bpf_map_lookup_elem(&reals, &key); if (!(*real)) - return 0; + return false; if (!(vip_info->flags & (1 << 1))) { __u32 conn_rate_key = 512 + 2; struct lb_stats *conn_rate_stats = bpf_map_lookup_elem(&stats, &conn_rate_key); if (!conn_rate_stats) - return 1; + return true; cur_time = bpf_ktime_get_ns(); if ((cur_time - conn_rate_stats->v2) >> 32 > 0xffFFFF) { conn_rate_stats->v1 = 1; @@ -587,14 +587,14 @@ static bool get_packet_dst(struct real_definition **real, } else { conn_rate_stats->v1 += 1; if (conn_rate_stats->v1 >= 1) - return 1; + return true; } if (pckt->flow.proto == IPPROTO_UDP) new_dst_lru.atime = cur_time; new_dst_lru.pos = key; bpf_map_update_elem(lru_map, &pckt->flow, &new_dst_lru, 0); } - return 1; + return true; } __attribute__ ((noinline)) -- 1.8.3.1

4 years, 2 months

3
3
0 0

[PATCH linux-next] tools: remove unneeded semicolon

by CGEL

From: jing yangyang <jing.yangyang(a)zte.com.cn> Eliminate the following coccicheck warning: ./tools/testing/selftests/kvm/access_tracking_perf_test.c:234:3-4:Unneeded semicolon Reported-by: Zeal Robot <zealci(a)zte.com.cn> Signed-off-by: jing yangyang <jing.yangyang(a)zte.com.cn> --- tools/testing/selftests/kvm/access_tracking_perf_test.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/kvm/access_tracking_perf_test.c b/tools/testing/selftests/kvm/access_tracking_perf_test.c index 71e277c..02a1c0f 100644 --- a/tools/testing/selftests/kvm/access_tracking_perf_test.c +++ b/tools/testing/selftests/kvm/access_tracking_perf_test.c @@ -231,7 +231,7 @@ static void *vcpu_thread_main(void *arg) case ITERATION_MARK_IDLE: mark_vcpu_memory_idle(vm, vcpu_id); break; - }; + } vcpu_last_completed_iteration[vcpu_id] = current_iteration; } -- 1.8.3.1

4 years, 2 months

2
1
0 0

[PATCH linux-next] tools:mount: Remove unnecessary conversion to bool

by CGEL

From: jing yangyang <jing.yangyang(a)zte.com.cn> Suppress following warning from coccinelle: ./tools/testing/selftests/mount/unprivileged-remount-test.c:285:54-59: WARNING conversion to bool not needed here ./tools/testing/selftests/mount/unprivileged-remount-test.c:207:54-59: WARNING conversion to bool not needed here Reported-by: Zeal Robot <zealci(a)zte.com.cn> Signed-off-by: jing yangyang <jing.yangyang(a)zte.com.cn> --- tools/testing/selftests/mount/unprivileged-remount-test.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/tools/testing/selftests/mount/unprivileged-remount-test.c b/tools/testing/selftests/mount/unprivileged-remount-test.c index 584dc6b..bc802f6 100644 --- a/tools/testing/selftests/mount/unprivileged-remount-test.c +++ b/tools/testing/selftests/mount/unprivileged-remount-test.c @@ -204,7 +204,7 @@ bool test_unpriv_remount(const char *fstype, const char *mount_options, if (!WIFEXITED(status)) { die("child did not terminate cleanly\n"); } - return WEXITSTATUS(status) == EXIT_SUCCESS ? true : false; + return WEXITSTATUS(status) == EXIT_SUCCESS; } create_and_enter_userns(); @@ -282,7 +282,7 @@ static bool test_priv_mount_unpriv_remount(void) if (!WIFEXITED(status)) { die("child did not terminate cleanly\n"); } - return WEXITSTATUS(status) == EXIT_SUCCESS ? true : false; + return WEXITSTATUS(status) == EXIT_SUCCESS; } orig_mnt_flags = read_mnt_flags(orig_path); -- 1.8.3.1

4 years, 2 months

2
1
0 0

[PATCH linux-next] testing/vm/: fix application of sizeof to pointer

by CGEL

From: jing yangyang <jing.yangyang(a)zte.com.cn> sizeof when applied to a pointer typed expression gives the size of the pointer. ./tools/testing/selftests/vm/split_huge_page_test.c:344:36-42: ERROR application of sizeof to pointer This issue was detected with the help of Coccinelle. Reported-by: Zeal Robot <zealci(a)zte.com.cn> Signed-off-by: jing yangyang <jing.yangyang(a)zte.com.cn> --- tools/testing/selftests/vm/split_huge_page_test.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/vm/split_huge_page_test.c b/tools/testing/selftests/vm/split_huge_page_test.c index 1af16d2..54bf57f 100644 --- a/tools/testing/selftests/vm/split_huge_page_test.c +++ b/tools/testing/selftests/vm/split_huge_page_test.c @@ -341,7 +341,7 @@ void split_file_backed_thp(void) } /* write something to the file, so a file-backed THP can be allocated */ - num_written = write(fd, tmpfs_loc, sizeof(tmpfs_loc)); + num_written = write(fd, tmpfs_loc, sizeof(*tmpfs_loc)); close(fd); if (num_written < 1) { -- 1.8.3.1

4 years, 2 months

2
1
0 0

[PATCH linux-next] kselftest: remove duplicate include in cs_prctl_test.c

by cgel.zte＠gmail.com

From: yong yiran <yong.yiran(a)zte.com.cn> 'sys/types.h' included in 'cs_prctl_test.c' is duplicated. Remove all but the first include of sys/types.h from cs_prctl_test.c. 'sys/wait.h' include in 'cs_prctl_test.c' is duplicated. Remove all but the first include of sys/wait.h from cs_prctl_test.c. Reported-by: Zeal Robot <zealci(a)zte.com.cn> Signed-off-by: yong yiran <yong.yiran(a)zte.com.cn> --- tools/testing/selftests/sched/cs_prctl_test.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/tools/testing/selftests/sched/cs_prctl_test.c b/tools/testing/selftests/sched/cs_prctl_test.c index 63fe6521c56d..7db9cf822dc7 100644 --- a/tools/testing/selftests/sched/cs_prctl_test.c +++ b/tools/testing/selftests/sched/cs_prctl_test.c @@ -25,8 +25,6 @@ #include <sys/types.h> #include <sched.h> #include <sys/prctl.h> -#include <sys/types.h> -#include <sys/wait.h> #include <unistd.h> #include <time.h> #include <stdio.h> -- 2.25.1

4 years, 2 months

2
1
0 0

[PATCH linux-next] tools: remove unneeded semicolon

by cgel.zte＠gmail.com

From: Zhang Yunkai <zhang.yunkai(a)zte.com.cn> Fix the following coccicheck REVIEW: ./tools/testing/selftests/timers/inconsistency-check.c:75:2-3 REVIEW Unneeded semicolon ./tools/testing/selftests/timers/set-timer-lat.c:83:2-3 REVIEW Unneeded semicolon ./tools/virtio/virtio-trace/trace-agent-ctl.c:78:2-3 REVIEW Unneeded semicolon ./tools/testing/selftests/timers/nanosleep.c:75:2-3 REVIEW Unneeded semicolon ./tools/testing/selftests/timers/nsleep-lat.c:75:2-3 REVIEW Unneeded semicolon ./tools/testing/selftests/timers/alarmtimer-suspend.c:82:2-3 REVIEW Unneeded semicolon Reported-by: Zeal Robot <zealci(a)zte.com.cn> Signed-off-by: Zhang Yunkai <zhang.yunkai(a)zte.com.cn> --- tools/testing/selftests/timers/alarmtimer-suspend.c | 2 +- tools/testing/selftests/timers/inconsistency-check.c | 2 +- tools/testing/selftests/timers/nanosleep.c | 2 +- tools/testing/selftests/timers/nsleep-lat.c | 2 +- tools/testing/selftests/timers/set-timer-lat.c | 2 +- tools/virtio/virtio-trace/trace-agent-ctl.c | 2 +- 6 files changed, 6 insertions(+), 6 deletions(-) diff --git a/tools/testing/selftests/timers/alarmtimer-suspend.c b/tools/testing/selftests/timers/alarmtimer-suspend.c index 4da09dbf83ba..54da4b088f4c 100644 --- a/tools/testing/selftests/timers/alarmtimer-suspend.c +++ b/tools/testing/selftests/timers/alarmtimer-suspend.c @@ -79,7 +79,7 @@ char *clockstring(int clockid) return "CLOCK_BOOTTIME_ALARM"; case CLOCK_TAI: return "CLOCK_TAI"; - }; + } return "UNKNOWN_CLOCKID"; } diff --git a/tools/testing/selftests/timers/inconsistency-check.c b/tools/testing/selftests/timers/inconsistency-check.c index 022d3ffe3fbf..e6756d9c60a7 100644 --- a/tools/testing/selftests/timers/inconsistency-check.c +++ b/tools/testing/selftests/timers/inconsistency-check.c @@ -72,7 +72,7 @@ char *clockstring(int clockid) return "CLOCK_BOOTTIME_ALARM"; case CLOCK_TAI: return "CLOCK_TAI"; - }; + } return "UNKNOWN_CLOCKID"; } diff --git a/tools/testing/selftests/timers/nanosleep.c b/tools/testing/selftests/timers/nanosleep.c index 71b5441c2fd9..433a09676aeb 100644 --- a/tools/testing/selftests/timers/nanosleep.c +++ b/tools/testing/selftests/timers/nanosleep.c @@ -72,7 +72,7 @@ char *clockstring(int clockid) return "CLOCK_BOOTTIME_ALARM"; case CLOCK_TAI: return "CLOCK_TAI"; - }; + } return "UNKNOWN_CLOCKID"; } diff --git a/tools/testing/selftests/timers/nsleep-lat.c b/tools/testing/selftests/timers/nsleep-lat.c index eb3e79ed7b4a..a7ca9825e106 100644 --- a/tools/testing/selftests/timers/nsleep-lat.c +++ b/tools/testing/selftests/timers/nsleep-lat.c @@ -72,7 +72,7 @@ char *clockstring(int clockid) return "CLOCK_BOOTTIME_ALARM"; case CLOCK_TAI: return "CLOCK_TAI"; - }; + } return "UNKNOWN_CLOCKID"; } diff --git a/tools/testing/selftests/timers/set-timer-lat.c b/tools/testing/selftests/timers/set-timer-lat.c index 50da45437daa..d60bbcad487f 100644 --- a/tools/testing/selftests/timers/set-timer-lat.c +++ b/tools/testing/selftests/timers/set-timer-lat.c @@ -80,7 +80,7 @@ char *clockstring(int clockid) return "CLOCK_BOOTTIME_ALARM"; case CLOCK_TAI: return "CLOCK_TAI"; - }; + } return "UNKNOWN_CLOCKID"; } diff --git a/tools/virtio/virtio-trace/trace-agent-ctl.c b/tools/virtio/virtio-trace/trace-agent-ctl.c index 73d253d4b559..39860be6e2d8 100644 --- a/tools/virtio/virtio-trace/trace-agent-ctl.c +++ b/tools/virtio/virtio-trace/trace-agent-ctl.c @@ -75,7 +75,7 @@ static int wait_order(int ctl_fd) if (ret) break; - }; + } return ret; -- 2.25.1

4 years, 2 months

2
1
0 0

Re: [PATCH v11 5/9] Reimplement RLIMIT_MSGQUEUE on top of ucounts

by Ma, XinjianX

Hi Alexey, When lkp team run kernel selftests, we found after these series of patches, testcase mqueue: mq_perf_tests in kselftest failed with following message. If you confirm and fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot lkp(a)intel.com ``` # selftests: mqueue: mq_perf_tests # # Initial system state: # Using queue path: /mq_perf_tests # RLIMIT_MSGQUEUE(soft): 819200 # RLIMIT_MSGQUEUE(hard): 819200 # Maximum Message Size: 8192 # Maximum Queue Size: 10 # Nice value: 0 # # Adjusted system state for testing: # RLIMIT_MSGQUEUE(soft): (unlimited) # RLIMIT_MSGQUEUE(hard): (unlimited) # Maximum Message Size: 16777216 # Maximum Queue Size: 65530 # Nice value: -20 # Continuous mode: (disabled) # CPUs to pin: 3 # ./mq_perf_tests: mq_open() at 296: Too many open files not ok 2 selftests: mqueue: mq_perf_tests # exit=1 ``` Test env: rootfs: debian-10 gcc version: 9 ------ Thanks Ma Xinjian

4 years, 2 months

3
8
0 0

[PATCH linux-next] kselftest: remove duplicate include

by CGEL

From: Changcheng Deng <deng.changcheng(a)zte.com.cn> Clean up the following includecheck warning: ./tools/testing/selftests/sched/cs_prctl_test.c: sys/types.h and sys/wait.h are included more than once. No functional change. Reported-by: Zeal Robot <zealci(a)zte.com.cn> Signed-off-by: Changcheng Deng <deng.changcheng(a)zte.com.cn> --- tools/testing/selftests/sched/cs_prctl_test.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/tools/testing/selftests/sched/cs_prctl_test.c b/tools/testing/selftests/sched/cs_prctl_test.c index 63fe652..7db9cf8 100644 --- a/tools/testing/selftests/sched/cs_prctl_test.c +++ b/tools/testing/selftests/sched/cs_prctl_test.c @@ -25,8 +25,6 @@ #include <sys/types.h> #include <sched.h> #include <sys/prctl.h> -#include <sys/types.h> -#include <sys/wait.h> #include <unistd.h> #include <time.h> #include <stdio.h> -- 1.8.3.1

4 years, 2 months

1
0
0 0

[V2][PATCH] selftests/x86: Fix error: variably modified 'altstack_data' at file scope

by Jun Miao

Based on glibc 2.33 -> 2.34, there is one new feature: NEWS for version 2.34 ===================== Major new features: * Add _SC_MINSIGSTKSZ and _SC_SIGSTKSZ. When _DYNAMIC_STACK_SIZE_SOURCE or _GNU_SOURCE are defined, MINSIGSTKSZ and SIGSTKSZ are no longer constant on Linux. MINSIGSTKSZ is redefined to sysconf(_SC_MINSIGSTKSZ) and SIGSTKSZ is redefined to sysconf (_SC_SIGSTKSZ). This supports dynamic sized register sets for modern architectural features like Arm SVE. Build error with the GNU C Library 2.34: DEBUG: | sigreturn.c:150:13: error: variably modified 'altstack_data' at file scope | sigreturn.c:150:13: error: variably modified 'altstack_data' at file scope DEBUG: | 150 | static char altstack_data[SIGSTKSZ]; | 150 | static char altstack_data[SIGSTKSZ]; DEBUG: | | ^~~~~~~~~~~~~ Signed-off-by: Jun Miao <jun.miao(a)windriver.com> --- tools/testing/selftests/x86/mov_ss_trap.c | 4 ++-- tools/testing/selftests/x86/sigreturn.c | 7 +++---- tools/testing/selftests/x86/single_step_syscall.c | 4 ++-- tools/testing/selftests/x86/syscall_arg_fault.c | 7 +++---- 4 files changed, 10 insertions(+), 12 deletions(-) diff --git a/tools/testing/selftests/x86/mov_ss_trap.c b/tools/testing/selftests/x86/mov_ss_trap.c index 6da0ac3f0135..1ebf5f3f0fcf 100644 --- a/tools/testing/selftests/x86/mov_ss_trap.c +++ b/tools/testing/selftests/x86/mov_ss_trap.c @@ -47,7 +47,6 @@ unsigned short ss; extern unsigned char breakpoint_insn[]; sigjmp_buf jmpbuf; -static unsigned char altstack_data[SIGSTKSZ]; static void enable_watchpoint(void) { @@ -250,7 +249,7 @@ int main() if (sigsetjmp(jmpbuf, 1) == 0) { printf("[RUN]\tMOV SS; SYSENTER\n"); stack_t stack = { - .ss_sp = altstack_data, + .ss_sp = malloc(sizeof(char) * SIGSTKSZ), .ss_size = SIGSTKSZ, }; if (sigaltstack(&stack, NULL) != 0) @@ -282,5 +281,6 @@ int main() } printf("[OK]\tI aten't dead\n"); + free(stack.ss_sp); return 0; } diff --git a/tools/testing/selftests/x86/sigreturn.c b/tools/testing/selftests/x86/sigreturn.c index 57c4f67f16ef..5d7961a5f7f6 100644 --- a/tools/testing/selftests/x86/sigreturn.c +++ b/tools/testing/selftests/x86/sigreturn.c @@ -138,9 +138,6 @@ static unsigned short LDT3(int idx) return (idx << 3) | 7; } -/* Our sigaltstack scratch space. */ -static char altstack_data[SIGSTKSZ]; - static void sethandler(int sig, void (*handler)(int, siginfo_t *, void *), int flags) { @@ -771,7 +768,8 @@ int main() setup_ldt(); stack_t stack = { - .ss_sp = altstack_data, + /* Our sigaltstack scratch space. */ + .ss_sp = malloc(sizeof(char) * SIGSTKSZ), .ss_size = SIGSTKSZ, }; if (sigaltstack(&stack, NULL) != 0) @@ -872,5 +870,6 @@ int main() total_nerrs += test_nonstrict_ss(); #endif + free(stack.ss_sp); return total_nerrs ? 1 : 0; } diff --git a/tools/testing/selftests/x86/single_step_syscall.c b/tools/testing/selftests/x86/single_step_syscall.c index 120ac741fe44..158b2bb1474c 100644 --- a/tools/testing/selftests/x86/single_step_syscall.c +++ b/tools/testing/selftests/x86/single_step_syscall.c @@ -57,7 +57,6 @@ static void clearhandler(int sig) static volatile sig_atomic_t sig_traps, sig_eflags; sigjmp_buf jmpbuf; -static unsigned char altstack_data[SIGSTKSZ]; #ifdef __x86_64__ # define REG_IP REG_RIP @@ -210,7 +209,7 @@ int main() unsigned long nr = SYS_getpid; printf("[RUN]\tSet TF and check SYSENTER\n"); stack_t stack = { - .ss_sp = altstack_data, + .ss_sp = malloc(sizeof(char) * SIGSTKSZ), .ss_size = SIGSTKSZ, }; if (sigaltstack(&stack, NULL) != 0) @@ -228,6 +227,7 @@ int main() /* We're unreachable here. SYSENTER forgets RIP. */ } + free(stack.ss_sp); clearhandler(SIGSEGV); clearhandler(SIGILL); if (!(sig_eflags & X86_EFLAGS_TF)) { diff --git a/tools/testing/selftests/x86/syscall_arg_fault.c b/tools/testing/selftests/x86/syscall_arg_fault.c index bff474b5efc6..461fa41a4d02 100644 --- a/tools/testing/selftests/x86/syscall_arg_fault.c +++ b/tools/testing/selftests/x86/syscall_arg_fault.c @@ -17,9 +17,6 @@ #include "helpers.h" -/* Our sigaltstack scratch space. */ -static unsigned char altstack_data[SIGSTKSZ]; - static void sethandler(int sig, void (*handler)(int, siginfo_t *, void *), int flags) { @@ -104,7 +101,8 @@ static void sigill(int sig, siginfo_t *info, void *ctx_void) int main() { stack_t stack = { - .ss_sp = altstack_data, + /* Our sigaltstack scratch space. */ + .ss_sp = malloc(sizeof(char) * SIGSTKSZ), .ss_size = SIGSTKSZ, }; if (sigaltstack(&stack, NULL) != 0) @@ -233,5 +231,6 @@ int main() set_eflags(get_eflags() & ~X86_EFLAGS_TF); #endif + free(stack.ss_sp); return 0; } -- 2.32.0

4 years, 2 months

3
2
0 0

[PATCH] selftests/x86/sigreturn: Fix error: variably modified 'altstack_data' at file scope

by Jun Miao

Based on glibc 2.33 -> 2.34, there is one new feature: NEWS for version 2.34 ===================== Major new features: * Add _SC_MINSIGSTKSZ and _SC_SIGSTKSZ. When _DYNAMIC_STACK_SIZE_SOURCE or _GNU_SOURCE are defined, MINSIGSTKSZ and SIGSTKSZ are no longer constant on Linux. MINSIGSTKSZ is redefined to sysconf(_SC_MINSIGSTKSZ) and SIGSTKSZ is redefined to sysconf (_SC_SIGSTKSZ). This supports dynamic sized register sets for modern architectural features like Arm SVE. Build error with the GNU C Library 2.34: DEBUG: | sigreturn.c:150:13: error: variably modified 'altstack_data' at file scope | sigreturn.c:150:13: error: variably modified 'altstack_data' at file scope DEBUG: | 150 | static char altstack_data[SIGSTKSZ]; | 150 | static char altstack_data[SIGSTKSZ]; DEBUG: | | ^~~~~~~~~~~~~ Signed-off-by: Jun Miao <jun.miao(a)windriver.com> --- tools/testing/selftests/x86/sigreturn.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/tools/testing/selftests/x86/sigreturn.c b/tools/testing/selftests/x86/sigreturn.c index 57c4f67f16ef..e32ffcc7053d 100644 --- a/tools/testing/selftests/x86/sigreturn.c +++ b/tools/testing/selftests/x86/sigreturn.c @@ -138,9 +138,6 @@ static unsigned short LDT3(int idx) return (idx << 3) | 7; } -/* Our sigaltstack scratch space. */ -static char altstack_data[SIGSTKSZ]; - static void sethandler(int sig, void (*handler)(int, siginfo_t *, void *), int flags) { @@ -771,7 +768,8 @@ int main() setup_ldt(); stack_t stack = { - .ss_sp = altstack_data, + /* Our sigaltstack scratch space. */ + .ss_sp = malloc (sizeof(char) * SIGSTKSZ), .ss_size = SIGSTKSZ, }; if (sigaltstack(&stack, NULL) != 0) @@ -872,5 +870,6 @@ int main() total_nerrs += test_nonstrict_ss(); #endif + free(stack.ss_sp); return total_nerrs ? 1 : 0; } -- 2.32.0

4 years, 2 months

2
1
0 0

[PATCH linux-next] tools: fix warning comparing pointer to 0

by CGEL

From: jing yangyang <jing.yangyang(a)zte.com.cn> Fix the following coccicheck warning: ./tools/testing/selftests/bpf/progs/profiler.inc.h:364:18-22:WARNING comparing pointer to 0 ./tools/testing/selftests/bpf/progs/profiler.inc.h:537:23-27:WARNING comparing pointer to 0 ./tools/testing/selftests/bpf/progs/profiler.inc.h:544:21-25:WARNING comparing pointer to 0 ./tools/testing/selftests/bpf/progs/profiler.inc.h:770:13-17:WARNING comparing pointer to 0 Reported-by: Zeal Robot <zealci(a)zte.com.cn> Signed-off-by: jing yangyang <jing.yangyang(a)zte.com.cn> --- tools/testing/selftests/bpf/progs/profiler.inc.h | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/tools/testing/selftests/bpf/progs/profiler.inc.h b/tools/testing/selftests/bpf/progs/profiler.inc.h index 4896fdf..5c0bdab 100644 --- a/tools/testing/selftests/bpf/progs/profiler.inc.h +++ b/tools/testing/selftests/bpf/progs/profiler.inc.h @@ -361,7 +361,7 @@ static INLINE void* populate_var_metadata(struct var_metadata_t* metadata, int zero = 0; struct var_kill_data_t* kill_data = bpf_map_lookup_elem(&data_heap, &zero); - if (kill_data == NULL) + if (!kill_dat) return NULL; struct task_struct* task = (struct task_struct*)bpf_get_current_task(); @@ -534,14 +534,14 @@ static INLINE bool is_dentry_allowed_for_filemod(struct dentry* file_dentry, *device_id = dev_id; bool* allowed_device = bpf_map_lookup_elem(&allowed_devices, &dev_id); - if (allowed_device == NULL) + if (!allowed_device) return false; u64 ino = BPF_CORE_READ(file_dentry, d_inode, i_ino); *file_ino = ino; bool* allowed_file = bpf_map_lookup_elem(&allowed_file_inodes, &ino); - if (allowed_file == NULL) + if (!allowed_fil) if (!is_ancestor_in_allowed_inodes(BPF_CORE_READ(file_dentry, d_parent))) return false; return true; @@ -689,7 +689,7 @@ int raw_tracepoint__sched_process_exec(struct bpf_raw_tracepoint_args* ctx) u64 inode = BPF_CORE_READ(bprm, file, f_inode, i_ino); bool* should_filter_binprm = bpf_map_lookup_elem(&disallowed_exec_inodes, &inode); - if (should_filter_binprm != NULL) + if (should_filter_binprm) goto out; int zero = 0; -- 1.8.3.1

4 years, 2 months

3
2
0 0

[PATCH] selftests/vm: Use kselftest skip code for skipped tests

by Po-Hsu Lin

There are several test cases in the vm directory are still using exit 0 when they need to be skipped. Use kselftest framework skip code instead so it can help us to distinguish the return status. Criterion to filter out what should be fixed in vm directory: grep -r "exit 0" -B1 | grep -i skip This change might cause some false-positives if people are running these test scripts directly and only checking their return codes, which will change from 0 to 4. However I think the impact should be small as most of our scripts here are already using this skip code. And there will be no such issue if running them with the kselftest framework. Signed-off-by: Po-Hsu Lin <po-hsu.lin(a)canonical.com> --- tools/testing/selftests/vm/charge_reserved_hugetlb.sh | 5 ++++- tools/testing/selftests/vm/hugetlb_reparenting_test.sh | 5 ++++- 2 files changed, 8 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/vm/charge_reserved_hugetlb.sh b/tools/testing/selftests/vm/charge_reserved_hugetlb.sh index 18d3368..fe8fcfb 100644 --- a/tools/testing/selftests/vm/charge_reserved_hugetlb.sh +++ b/tools/testing/selftests/vm/charge_reserved_hugetlb.sh @@ -1,11 +1,14 @@ #!/bin/sh # SPDX-License-Identifier: GPL-2.0 +# Kselftest framework requirement - SKIP code is 4. +ksft_skip=4 + set -e if [[ $(id -u) -ne 0 ]]; then echo "This test must be run as root. Skipping..." - exit 0 + exit $ksft_skip fi fault_limit_file=limit_in_bytes diff --git a/tools/testing/selftests/vm/hugetlb_reparenting_test.sh b/tools/testing/selftests/vm/hugetlb_reparenting_test.sh index d11d1fe..4a9a3af 100644 --- a/tools/testing/selftests/vm/hugetlb_reparenting_test.sh +++ b/tools/testing/selftests/vm/hugetlb_reparenting_test.sh @@ -1,11 +1,14 @@ #!/bin/bash # SPDX-License-Identifier: GPL-2.0 +# Kselftest framework requirement - SKIP code is 4. +ksft_skip=4 + set -e if [[ $(id -u) -ne 0 ]]; then echo "This test must be run as root. Skipping..." - exit 0 + exit $ksft_skip fi usage_file=usage_in_bytes -- 2.7.4

4 years, 2 months

1
0
0 0

[for-next][PATCH 6/6] selftests/ftrace: Add selftest for testing duplicate eprobes and kprobes

by Steven Rostedt

From: "Steven Rostedt (VMware)" <rostedt(a)goodmis.org> Add a selftest that makes sure that eprobes and kprobes can not be created with the same group and name as existing events. Link: https://lore.kernel.org/linux-kselftest/20210819152825.715290342@goodmis.or… Link: https://lkml.kernel.org/r/20210820204742.653288346@goodmis.org Cc: "Tzvetomir Stoyanov" <tz.stoyanov(a)gmail.com> Cc: Tom Zanussi <zanussi(a)kernel.org> Cc: Shuah Khan <shuah(a)kernel.org> Cc: Shuah Khan <skhan(a)linuxfoundation.org> Cc: linux-kselftest(a)vger.kernel.org Acked-by: Masami Hiramatsu <mhiramat(a)kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt(a)goodmis.org> --- .../ftrace/test.d/dynevent/test_duplicates.tc | 38 +++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 tools/testing/selftests/ftrace/test.d/dynevent/test_duplicates.tc diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/test_duplicates.tc b/tools/testing/selftests/ftrace/test.d/dynevent/test_duplicates.tc new file mode 100644 index 000000000000..db522577ff78 --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/dynevent/test_duplicates.tc @@ -0,0 +1,38 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# description: Generic dynamic event - check if duplicate events are caught +# requires: dynamic_events "e[:[<group>/]<event>] <attached-group>.<attached-event> [<args>]":README + +echo 0 > events/enable + +HAVE_KPROBES=0 + +if [ -f kprobe_events ]; then + HAVE_KPROBES=1 +fi + +clear_dynamic_events + +# first create dynamic events for eprobes and kprobes. + +echo 'e:egroup/eevent syscalls/sys_enter_openat file=+0($filename):ustring' >> dynamic_events + +# Test eprobe for same eprobe, existing kprobe and existing event +! echo 'e:egroup/eevent syscalls/sys_enter_openat file=+0($filename):ustring' >> dynamic_events +! echo 'e:syscalls/sys_enter_open syscalls/sys_enter_openat file=+0($filename):ustring' >> dynamic_events + +if [ $HAVE_KPROBES -eq 1 ]; then + echo 'p:kgroup/kevent vfs_open file=+0($arg2)' >> dynamic_events + ! echo 'e:kgroup/kevent syscalls/sys_enter_openat file=+0($filename):ustring' >> dynamic_events + +# Test kprobe for same kprobe, existing eprobe and existing event + ! echo 'p:kgroup/kevent vfs_open file=+0($arg2)' >> dynamic_events + ! echo 'p:egroup/eevent vfs_open file=+0($arg2)' >> dynamic_events + ! echo 'p:syscalls/sys_enter_open vfs_open file=+0($arg2)' >> dynamic_events + + echo '-:kgroup/kevent' >> dynamic_events +fi + +echo '-:egroup/eevent' >> dynamic_events + +clear_trace -- 2.30.2

4 years, 2 months

1
0
0 0

[for-next][PATCH 5/6] selftests/ftrace: Add selftest for testing eprobe events on synthetic events

by Steven Rostedt

From: "Steven Rostedt (VMware)" <rostedt(a)goodmis.org> Add a test to test event probes, by creating a synthetic event across sys_enter_openat and sys_exit_openat that passes the filename pointer from the enter of the system call to the exit, and then add an event probe to the synthetic event to make sure that the file name is seen. Link: https://lore.kernel.org/linux-kselftest/20210819152825.526931866@goodmis.or… Link: https://lkml.kernel.org/r/20210820204742.463259900@goodmis.org Cc: "Tzvetomir Stoyanov" <tz.stoyanov(a)gmail.com> Cc: Tom Zanussi <zanussi(a)kernel.org> Cc: Shuah Khan <shuah(a)kernel.org> Cc: Shuah Khan <skhan(a)linuxfoundation.org> Cc: linux-kselftest(a)vger.kernel.org Acked-by: Masami Hiramatsu <mhiramat(a)kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt(a)goodmis.org> --- .../inter-event/trigger-synthetic-eprobe.tc | 53 +++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic-eprobe.tc diff --git a/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic-eprobe.tc b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic-eprobe.tc new file mode 100644 index 000000000000..914fe2e5d030 --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic-eprobe.tc @@ -0,0 +1,53 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# description: event trigger - test inter-event histogram trigger eprobe on synthetic event +# requires: dynamic_events synthetic_events events/syscalls/sys_enter_openat/hist "e[:[<group>/]<event>] <attached-group>.<attached-event> [<args>]":README + +echo 0 > events/enable + +clear_dynamic_events + +SYSTEM="syscalls" +START="sys_enter_openat" +END="sys_exit_openat" +FIELD="filename" +SYNTH="synth_open" +EPROBE="eprobe_open" + +echo "$SYNTH u64 filename; s64 ret;" > synthetic_events +echo "hist:keys=common_pid:__arg__1=$FIELD" > events/$SYSTEM/$START/trigger +echo "hist:keys=common_pid:filename=\$__arg__1,ret=ret:onmatch($SYSTEM.$START).trace($SYNTH,\$filename,\$ret)" > events/$SYSTEM/$END/trigger + +echo "e:$EPROBE synthetic/$SYNTH file=+0(\$filename):ustring ret=\$ret:s64" >> dynamic_events + +grep -q "$SYNTH" dynamic_events +grep -q "$EPROBE" dynamic_events +test -d events/synthetic/$SYNTH +test -d events/eprobes/$EPROBE + +echo 1 > events/eprobes/$EPROBE/enable +ls +echo 0 > events/eprobes/$EPROBE/enable + +content=`grep '^ *ls-' trace | grep 'file='` +nocontent=`grep '^ *ls-' trace | grep 'file=' | grep -v -e '"/' -e '"."'` || true + +if [ -z "$content" ]; then + exit_fail +fi + +if [ ! -z "$nocontent" ]; then + exit_fail +fi + +echo "-:$EPROBE" >> dynamic_events +echo '!'"hist:keys=common_pid:filename=\$__arg__1,ret=ret:onmatch($SYSTEM.$START).trace($SYNTH,\$filename,\$ret)" > events/$SYSTEM/$END/trigger +echo '!'"hist:keys=common_pid:__arg__1=$FIELD" > events/$SYSTEM/$START/trigger +echo '!'"$SYNTH u64 filename; s64 ret;" >> synthetic_events + +! grep -q "$SYNTH" dynamic_events +! grep -q "$EPROBE" dynamic_events +! test -d events/synthetic/$SYNTH +! test -d events/eprobes/$EPROBE + +clear_trace -- 2.30.2

4 years, 2 months

1
0
0 0

[for-next][PATCH 4/6] selftests/ftrace: Add test case to test adding and removing of event probe

by Steven Rostedt

From: "Steven Rostedt (VMware)" <rostedt(a)goodmis.org> Add a test case that adds an event probe, makes sure that it works, and then removes it. Link: https://lore.kernel.org/linux-kselftest/20210819152825.526931866@goodmis.or… Link: https://lkml.kernel.org/r/20210820204742.274591200@goodmis.org Cc: "Tzvetomir Stoyanov" <tz.stoyanov(a)gmail.com> Cc: Tom Zanussi <zanussi(a)kernel.org> Cc: Shuah Khan <shuah(a)kernel.org> Cc: Shuah Khan <skhan(a)linuxfoundation.org> Cc: linux-kselftest(a)vger.kernel.org Acked-by: Masami Hiramatsu <mhiramat(a)kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt(a)goodmis.org> --- .../test.d/dynevent/add_remove_eprobe.tc | 40 +++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 tools/testing/selftests/ftrace/test.d/dynevent/add_remove_eprobe.tc diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_eprobe.tc b/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_eprobe.tc new file mode 100644 index 000000000000..25a3da4eaa44 --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_eprobe.tc @@ -0,0 +1,40 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# description: Generic dynamic event - add/remove eprobe events +# requires: dynamic_events events/syscalls/sys_enter_openat "e[:[<group>/]<event>] <attached-group>.<attached-event> [<args>]":README + +echo 0 > events/enable + +clear_dynamic_events + +SYSTEM="syscalls" +EVENT="sys_enter_openat" +FIELD="filename" +EPROBE="eprobe_open" + +echo "e:$EPROBE $SYSTEM/$EVENT file=+0(\$filename):ustring" >> dynamic_events + +grep -q "$EPROBE" dynamic_events +test -d events/eprobes/$EPROBE + +echo 1 > events/eprobes/$EPROBE/enable +ls +echo 0 > events/eprobes/$EPROBE/enable + +content=`grep '^ *ls-' trace | grep 'file='` +nocontent=`grep '^ *ls-' trace | grep 'file=' | grep -v -e '"/' -e '"."'` || true + +if [ -z "$content" ]; then + exit_fail +fi + +if [ ! -z "$nocontent" ]; then + exit_fail +fi + +echo "-:$EPROBE" >> dynamic_events + +! grep -q "$EPROBE" dynamic_events +! test -d events/eprobes/$EPROBE + +clear_trace -- 2.30.2

4 years, 2 months

1
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0 0

[for-next][PATCH 3/6] selftests/ftrace: Fix requirement check of README file

by Steven Rostedt

From: "Steven Rostedt (VMware)" <rostedt(a)goodmis.org> The selftest for ftrace checks some features by checking if the README has text that states the feature is supported by that kernel. Unfortunately, this check gives false positives because it many not be checked if there's spaces in the string to check. This is due to the compare between the required variable with the ":README" string stripped, because neither has quotes around them. Link: https://lkml.kernel.org/r/20210820204742.087177341@goodmis.org Cc: "Tzvetomir Stoyanov" <tz.stoyanov(a)gmail.com> Cc: Tom Zanussi <zanussi(a)kernel.org> Cc: Shuah Khan <shuah(a)kernel.org> Cc: Shuah Khan <skhan(a)linuxfoundation.org> Cc: linux-kselftest(a)vger.kernel.org Cc: stable(a)vger.kernel.org Fixes: 1b8eec510ba64 ("selftests/ftrace: Support ":README" suffix for requires") Acked-by: Masami Hiramatsu <mhiramat(a)kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt(a)goodmis.org> --- tools/testing/selftests/ftrace/test.d/functions | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/ftrace/test.d/functions b/tools/testing/selftests/ftrace/test.d/functions index f68d336b961b..000fd05e84b1 100644 --- a/tools/testing/selftests/ftrace/test.d/functions +++ b/tools/testing/selftests/ftrace/test.d/functions @@ -137,7 +137,7 @@ check_requires() { # Check required files and tracers echo "Required tracer $t is not configured." exit_unsupported fi - elif [ $r != $i ]; then + elif [ "$r" != "$i" ]; then if ! grep -Fq "$r" README ; then echo "Required feature pattern \"$r\" is not in README." exit_unsupported -- 2.30.2

4 years, 2 months

1
0
0 0

[for-next][PATCH 2/6] selftests/ftrace: Add clear_dynamic_events() to test cases

by Steven Rostedt

From: "Steven Rostedt (VMware)" <rostedt(a)goodmis.org> Add a function to remove all dynamic events from the tracing directory. It requires a loop as some of the dynamic events may depend on others being removed first. Also add a safety that prevents it from looping infinitely due to a bug where an event never gets removed. Link: https://lkml.kernel.org/r/20210819152825.348941368@goodmis.org Cc: "Tzvetomir Stoyanov" <tz.stoyanov(a)gmail.com> Cc: Tom Zanussi <zanussi(a)kernel.org> Cc: Shuah Khan <shuah(a)kernel.org> Cc: Shuah Khan <skhan(a)linuxfoundation.org> Cc: linux-kselftest(a)vger.kernel.org Acked-by: Masami Hiramatsu <mhiramat(a)kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt(a)goodmis.org> --- .../testing/selftests/ftrace/test.d/functions | 22 +++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/tools/testing/selftests/ftrace/test.d/functions b/tools/testing/selftests/ftrace/test.d/functions index a6fac927ee82..f68d336b961b 100644 --- a/tools/testing/selftests/ftrace/test.d/functions +++ b/tools/testing/selftests/ftrace/test.d/functions @@ -83,6 +83,27 @@ clear_synthetic_events() { # reset all current synthetic events done } +clear_dynamic_events() { # reset all current dynamic events + again=1 + stop=1 + # loop mulitple times as some events require other to be removed first + while [ $again -eq 1 ]; do + stop=$((stop+1)) + # Prevent infinite loops + if [ $stop -gt 10 ]; then + break; + fi + again=2 + grep -v '^#' dynamic_events| + while read line; do + del=`echo $line | sed -e 's/^.$[^ ]*$.*/-\1/'` + if ! echo "$del" >> dynamic_events; then + again=1 + fi + done + done +} + initialize_ftrace() { # Reset ftrace to initial-state # As the initial state, ftrace will be set to nop tracer, # no events, no triggers, no filters, no function filters, @@ -93,6 +114,7 @@ initialize_ftrace() { # Reset ftrace to initial-state reset_events_filter reset_ftrace_filter disable_events + clear_dynamic_events [ -f set_event_pid ] && echo > set_event_pid [ -f set_ftrace_pid ] && echo > set_ftrace_pid [ -f set_ftrace_notrace ] && echo > set_ftrace_notrace -- 2.30.2

4 years, 2 months

1
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[RFC PATCH 0/5] selftests: floppy: basic tests

by Denis Efremov

Add basic tests to cover some regressions that we had. It's hard to test floppy because some tests require presence or absense of a diskette in a drive. To simulate test conditions and automate the testing I added "run_*.sh" wrapper scripts that run tests in QEMU. The first patch just improves check for reverted commits in a commit message. The second patch is required to generate a minimal initrd used in next commits. Rest of commits are basic floppy tests. Please, comment the approach, selftests integration and suggest tests that you would like to add. I thought about adding a possibility to remove/insert diskettes inside a test. This is possible if we give the guest an access to the QEMU monitor (eject/change cmds). But I didn't find a better way to do it than to map a monitor to an external port: -monitor tcp:<ip>:<port>,server,nowait and access this ip from the guest. Maybe it's also possible to do with virtserialport. Denis Efremov (5): checkpatch: improve handling of revert commits gen_initramfs.sh: use absolute path for gen_init_cpio selftests: floppy: add basic tests for opening an empty device selftests: floppy: add basic tests for a readonly disk selftests: floppy: add basic rdwr tests MAINTAINERS | 1 + scripts/checkpatch.pl | 12 +-- tools/testing/selftests/floppy/.gitignore | 8 ++ tools/testing/selftests/floppy/Makefile | 10 ++ tools/testing/selftests/floppy/config | 1 + tools/testing/selftests/floppy/empty.c | 58 ++++++++++++ tools/testing/selftests/floppy/init.c | 43 +++++++++ tools/testing/selftests/floppy/lib.sh | 67 +++++++++++++ tools/testing/selftests/floppy/rdonly.c | 99 ++++++++++++++++++++ tools/testing/selftests/floppy/rdwr.c | 67 +++++++++++++ tools/testing/selftests/floppy/run_empty.sh | 16 ++++ tools/testing/selftests/floppy/run_rdonly.sh | 22 +++++ tools/testing/selftests/floppy/run_rdwr.sh | 22 +++++ usr/gen_initramfs.sh | 2 +- 14 files changed, 421 insertions(+), 7 deletions(-) create mode 100644 tools/testing/selftests/floppy/.gitignore create mode 100644 tools/testing/selftests/floppy/Makefile create mode 100644 tools/testing/selftests/floppy/config create mode 100644 tools/testing/selftests/floppy/empty.c create mode 100644 tools/testing/selftests/floppy/init.c create mode 100644 tools/testing/selftests/floppy/lib.sh create mode 100644 tools/testing/selftests/floppy/rdonly.c create mode 100644 tools/testing/selftests/floppy/rdwr.c create mode 100755 tools/testing/selftests/floppy/run_empty.sh create mode 100755 tools/testing/selftests/floppy/run_rdonly.sh create mode 100755 tools/testing/selftests/floppy/run_rdwr.sh -- 2.31.1

4 years, 2 months

4
19
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[PATCH v9 6/6] selftests/ftrace: Add selftest for testing duplicate eprobes and kprobes

by Steven Rostedt

From: "Steven Rostedt (VMware)" <rostedt(a)goodmis.org> Add a selftest that makes sure that eprobes and kprobes can not be created with the same group and name as existing events. Link: https://lore.kernel.org/linux-kselftest/20210819152825.715290342@goodmis.or… Cc: Shuah Khan <shuah(a)kernel.org> Cc: Shuah Khan <skhan(a)linuxfoundation.org> Cc: linux-kselftest(a)vger.kernel.org Signed-off-by: Steven Rostedt (VMware) <rostedt(a)goodmis.org> --- .../ftrace/test.d/dynevent/test_duplicates.tc | 38 +++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 tools/testing/selftests/ftrace/test.d/dynevent/test_duplicates.tc diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/test_duplicates.tc b/tools/testing/selftests/ftrace/test.d/dynevent/test_duplicates.tc new file mode 100644 index 000000000000..db522577ff78 --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/dynevent/test_duplicates.tc @@ -0,0 +1,38 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# description: Generic dynamic event - check if duplicate events are caught +# requires: dynamic_events "e[:[<group>/]<event>] <attached-group>.<attached-event> [<args>]":README + +echo 0 > events/enable + +HAVE_KPROBES=0 + +if [ -f kprobe_events ]; then + HAVE_KPROBES=1 +fi + +clear_dynamic_events + +# first create dynamic events for eprobes and kprobes. + +echo 'e:egroup/eevent syscalls/sys_enter_openat file=+0($filename):ustring' >> dynamic_events + +# Test eprobe for same eprobe, existing kprobe and existing event +! echo 'e:egroup/eevent syscalls/sys_enter_openat file=+0($filename):ustring' >> dynamic_events +! echo 'e:syscalls/sys_enter_open syscalls/sys_enter_openat file=+0($filename):ustring' >> dynamic_events + +if [ $HAVE_KPROBES -eq 1 ]; then + echo 'p:kgroup/kevent vfs_open file=+0($arg2)' >> dynamic_events + ! echo 'e:kgroup/kevent syscalls/sys_enter_openat file=+0($filename):ustring' >> dynamic_events + +# Test kprobe for same kprobe, existing eprobe and existing event + ! echo 'p:kgroup/kevent vfs_open file=+0($arg2)' >> dynamic_events + ! echo 'p:egroup/eevent vfs_open file=+0($arg2)' >> dynamic_events + ! echo 'p:syscalls/sys_enter_open vfs_open file=+0($arg2)' >> dynamic_events + + echo '-:kgroup/kevent' >> dynamic_events +fi + +echo '-:egroup/eevent' >> dynamic_events + +clear_trace -- 2.30.2

4 years, 2 months

2
2
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[PATCH v9 3/6] selftests/ftrace: Fix requirement check of README file

by Steven Rostedt

From: "Steven Rostedt (VMware)" <rostedt(a)goodmis.org> The selftest for ftrace checks some features by checking if the README has text that states the feature is supported by that kernel. Unfortunately, this check gives false positives because it many not be checked if there's spaces in the string to check. This is due to the compare between the required variable with the ":README" string stripped, because neither has quotes around them. Cc: Shuah Khan <shuah(a)kernel.org> Cc: Shuah Khan <skhan(a)linuxfoundation.org> Cc: linux-kselftest(a)vger.kernel.org Cc: stable(a)vger.kernel.org Fixes: 1b8eec510ba64 ("selftests/ftrace: Support ":README" suffix for requires") Signed-off-by: Steven Rostedt (VMware) <rostedt(a)goodmis.org> --- tools/testing/selftests/ftrace/test.d/functions | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/ftrace/test.d/functions b/tools/testing/selftests/ftrace/test.d/functions index f68d336b961b..000fd05e84b1 100644 --- a/tools/testing/selftests/ftrace/test.d/functions +++ b/tools/testing/selftests/ftrace/test.d/functions @@ -137,7 +137,7 @@ check_requires() { # Check required files and tracers echo "Required tracer $t is not configured." exit_unsupported fi - elif [ $r != $i ]; then + elif [ "$r" != "$i" ]; then if ! grep -Fq "$r" README ; then echo "Required feature pattern \"$r\" is not in README." exit_unsupported -- 2.30.2

4 years, 2 months

2
1
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[PATCH v9 4/6] selftests/ftrace: Add test case to test adding and removing of event probe

by Steven Rostedt

From: "Steven Rostedt (VMware)" <rostedt(a)goodmis.org> Add a test case that adds an event probe, makes sure that it works, and then removes it. Link: https://lore.kernel.org/linux-kselftest/20210819152825.526931866@goodmis.or… Cc: Shuah Khan <shuah(a)kernel.org> Cc: Shuah Khan <skhan(a)linuxfoundation.org> Cc: linux-kselftest(a)vger.kernel.org Signed-off-by: Steven Rostedt (VMware) <rostedt(a)goodmis.org> --- .../test.d/dynevent/add_remove_eprobe.tc | 40 +++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 tools/testing/selftests/ftrace/test.d/dynevent/add_remove_eprobe.tc diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_eprobe.tc b/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_eprobe.tc new file mode 100644 index 000000000000..25a3da4eaa44 --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_eprobe.tc @@ -0,0 +1,40 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# description: Generic dynamic event - add/remove eprobe events +# requires: dynamic_events events/syscalls/sys_enter_openat "e[:[<group>/]<event>] <attached-group>.<attached-event> [<args>]":README + +echo 0 > events/enable + +clear_dynamic_events + +SYSTEM="syscalls" +EVENT="sys_enter_openat" +FIELD="filename" +EPROBE="eprobe_open" + +echo "e:$EPROBE $SYSTEM/$EVENT file=+0(\$filename):ustring" >> dynamic_events + +grep -q "$EPROBE" dynamic_events +test -d events/eprobes/$EPROBE + +echo 1 > events/eprobes/$EPROBE/enable +ls +echo 0 > events/eprobes/$EPROBE/enable + +content=`grep '^ *ls-' trace | grep 'file='` +nocontent=`grep '^ *ls-' trace | grep 'file=' | grep -v -e '"/' -e '"."'` || true + +if [ -z "$content" ]; then + exit_fail +fi + +if [ ! -z "$nocontent" ]; then + exit_fail +fi + +echo "-:$EPROBE" >> dynamic_events + +! grep -q "$EPROBE" dynamic_events +! test -d events/eprobes/$EPROBE + +clear_trace -- 2.30.2

4 years, 2 months

2
1
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[PATCH v9 5/6] selftests/ftrace: Add selftest for testing eprobe events on synthetic events

by Steven Rostedt

From: "Steven Rostedt (VMware)" <rostedt(a)goodmis.org> Add a test to test event probes, by creating a synthetic event across sys_enter_openat and sys_exit_openat that passes the filename pointer from the enter of the system call to the exit, and then add an event probe to the synthetic event to make sure that the file name is seen. Link: https://lore.kernel.org/linux-kselftest/20210819152825.526931866@goodmis.or… Cc: Shuah Khan <shuah(a)kernel.org> Cc: Shuah Khan <skhan(a)linuxfoundation.org> Cc: linux-kselftest(a)vger.kernel.org Signed-off-by: Steven Rostedt (VMware) <rostedt(a)goodmis.org> --- .../inter-event/trigger-synthetic-eprobe.tc | 53 +++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic-eprobe.tc diff --git a/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic-eprobe.tc b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic-eprobe.tc new file mode 100644 index 000000000000..914fe2e5d030 --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic-eprobe.tc @@ -0,0 +1,53 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# description: event trigger - test inter-event histogram trigger eprobe on synthetic event +# requires: dynamic_events synthetic_events events/syscalls/sys_enter_openat/hist "e[:[<group>/]<event>] <attached-group>.<attached-event> [<args>]":README + +echo 0 > events/enable + +clear_dynamic_events + +SYSTEM="syscalls" +START="sys_enter_openat" +END="sys_exit_openat" +FIELD="filename" +SYNTH="synth_open" +EPROBE="eprobe_open" + +echo "$SYNTH u64 filename; s64 ret;" > synthetic_events +echo "hist:keys=common_pid:__arg__1=$FIELD" > events/$SYSTEM/$START/trigger +echo "hist:keys=common_pid:filename=\$__arg__1,ret=ret:onmatch($SYSTEM.$START).trace($SYNTH,\$filename,\$ret)" > events/$SYSTEM/$END/trigger + +echo "e:$EPROBE synthetic/$SYNTH file=+0(\$filename):ustring ret=\$ret:s64" >> dynamic_events + +grep -q "$SYNTH" dynamic_events +grep -q "$EPROBE" dynamic_events +test -d events/synthetic/$SYNTH +test -d events/eprobes/$EPROBE + +echo 1 > events/eprobes/$EPROBE/enable +ls +echo 0 > events/eprobes/$EPROBE/enable + +content=`grep '^ *ls-' trace | grep 'file='` +nocontent=`grep '^ *ls-' trace | grep 'file=' | grep -v -e '"/' -e '"."'` || true + +if [ -z "$content" ]; then + exit_fail +fi + +if [ ! -z "$nocontent" ]; then + exit_fail +fi + +echo "-:$EPROBE" >> dynamic_events +echo '!'"hist:keys=common_pid:filename=\$__arg__1,ret=ret:onmatch($SYSTEM.$START).trace($SYNTH,\$filename,\$ret)" > events/$SYSTEM/$END/trigger +echo '!'"hist:keys=common_pid:__arg__1=$FIELD" > events/$SYSTEM/$START/trigger +echo '!'"$SYNTH u64 filename; s64 ret;" >> synthetic_events + +! grep -q "$SYNTH" dynamic_events +! grep -q "$EPROBE" dynamic_events +! test -d events/synthetic/$SYNTH +! test -d events/eprobes/$EPROBE + +clear_trace -- 2.30.2

4 years, 2 months

2
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0 0

[PATCH] kunit: tool: improve compatibility of kunit_parser with KTAP specification

by Rae Moar

Update to kunit_parser to improve compatibility with KTAP specification including arbitrarily nested tests. Patch accomplishes three major changes: - Use a general Test object to represent all tests rather than TestCase and TestSuite objects. This allows for easier implementation of arbitrary levels of nested test and promotes the idea that both test suites and test cases are tests. - Print errors incrementally rather than all at once after the parsing finishes to maximize information given to the user in the case of the parser given invalid input and to increase the helpfulness of the timestamps given during printing. - Increase compatibility for different formats of input. Arbitrary levels of nested tests supported. Also, test cases and test suites are now supported to be present on the same level of testing. This patch now implements the KTAP specification as described here: https://lore.kernel.org/linux-kselftest/CA+GJov6tdjvY9x12JsJT14qn6c7NViJxqa…. This patch adjusts the kunit_tool_test.py file to check for the correct outputs from the new parser and adds a new test to check the parsing for a KTAP result log with correct format for multiple nested subtests (test_is_test_passed-all_passed_nested.log). This patch also alters the kunit_json.py file to allow for arbitrarily nested tests. Signed-off-by: Rae Moar <rmoar(a)google.com> --- tools/testing/kunit/kunit_json.py | 54 +- tools/testing/kunit/kunit_parser.py | 1191 ++++++++++++----- tools/testing/kunit/kunit_tool_test.py | 91 +- .../test_is_test_passed-all_passed_nested.log | 34 + 4 files changed, 986 insertions(+), 384 deletions(-) create mode 100644 tools/testing/kunit/test_data/test_is_test_passed-all_passed_nested.log diff --git a/tools/testing/kunit/kunit_json.py b/tools/testing/kunit/kunit_json.py index f5cca5c38cac..cc4bc9cc6e0f 100644 --- a/tools/testing/kunit/kunit_json.py +++ b/tools/testing/kunit/kunit_json.py @@ -11,47 +11,45 @@ import os import kunit_parser -from kunit_parser import TestStatus - -def get_json_result(test_result, def_config, build_dir, json_path) -> str: - sub_groups = [] - - # Each test suite is mapped to a KernelCI sub_group - for test_suite in test_result.suites: - sub_group = { - "name": test_suite.name, - "arch": "UM", - "defconfig": def_config, - "build_environment": build_dir, - "test_cases": [], - "lab_name": None, - "kernel": None, - "job": None, - "git_branch": "kselftest", - } - test_cases = [] - # TODO: Add attachments attribute in test_case with detailed - # failure message, see https://api.kernelci.org/schema-test-case.html#get - for case in test_suite.cases: - test_case = {"name": case.name, "status": "FAIL"} - if case.status == TestStatus.SUCCESS: +from kunit_parser import Test, TestResult, TestStatus +from typing import Any, Dict + +JsonObj = Dict[str, Any] + +def _get_group_json(test: Test, def_config: str, build_dir: str) -> JsonObj: + sub_groups = [] # List[JsonObj] + test_cases = [] # List[JsonObj] + + for subtest in test.subtests: + if len(subtest.subtests): + sub_group = _get_group_json(subtest, def_config, build_dir) + sub_groups.append(sub_group) + else: + test_case = {"name": subtest.name, "status": "FAIL"} + if subtest.status == TestStatus.SUCCESS: test_case["status"] = "PASS" - elif case.status == TestStatus.TEST_CRASHED: + elif subtest.status == TestStatus.TEST_CRASHED: test_case["status"] = "ERROR" test_cases.append(test_case) - sub_group["test_cases"] = test_cases - sub_groups.append(sub_group) + test_group = { - "name": "KUnit Test Group", + "name": test.name, "arch": "UM", "defconfig": def_config, "build_environment": build_dir, "sub_groups": sub_groups, + "test_cases": test_cases, "lab_name": None, "kernel": None, "job": None, "git_branch": "kselftest", } + return test_group + +def get_json_result(test_result: TestResult, def_config: str, build_dir: str, \ + json_path: str) -> str: + test_group = _get_group_json(test_result.test, def_config, build_dir) + test_group["name"] = "KUnit Test Group" json_obj = json.dumps(test_group, indent=4) if json_path != 'stdout': with open(json_path, 'w') as result_path: diff --git a/tools/testing/kunit/kunit_parser.py b/tools/testing/kunit/kunit_parser.py index b88db3f51dc5..bca4d19f7636 100644 --- a/tools/testing/kunit/kunit_parser.py +++ b/tools/testing/kunit/kunit_parser.py @@ -1,11 +1,15 @@ # SPDX-License-Identifier: GPL-2.0 # -# Parses test results from a kernel dmesg log. +# Parses KTAP test results from a kernel dmesg log and incrementally prints +# results with reader-friendly format. Stores and returns test results in a +# Test object. # # Copyright (C) 2019, Google LLC. # Author: Felix Guo <felixguoxiuping(a)gmail.com> # Author: Brendan Higgins <brendanhiggins(a)google.com> +# Author: Rae Moar <rmoar(a)google.com> +from __future__ import annotations import re from collections import namedtuple @@ -14,33 +18,84 @@ from enum import Enum, auto from functools import reduce from typing import Iterable, Iterator, List, Optional, Tuple -TestResult = namedtuple('TestResult', ['status','suites','log']) - -class TestSuite(object): +TestResult = namedtuple('TestResult', ['status','test','log']) + +class Test(object): + """ + A class to represent a test parsed from KTAP results. All KTAP + results within a test log are stored in a main Test object as + subtests. + + Attributes: + status : TestStatus - status of the test + name : str - name of the test + expected_count : int - expected number of subtests (0 if single + test case and None if unknown expected number of subtests) + subtests : List[Test] - list of subtests + log : List[str] - log of KTAP lines that correspond to the test + counts : TestCounts - counts of the test statuses and errors of + subtests or of the test itself if the test is a single + test case. + """ def __init__(self) -> None: - self.status = TestStatus.SUCCESS - self.name = '' - self.cases = [] # type: List[TestCase] - - def __str__(self) -> str: - return 'TestSuite(' + str(self.status) + ',' + self.name + ',' + str(self.cases) + ')' + """ + Contructs the default attributes of a Test class object. - def __repr__(self) -> str: - return str(self) + Parameters: + None -class TestCase(object): - def __init__(self) -> None: + Return: + None + """ self.status = TestStatus.SUCCESS self.name = '' + self.expected_count = 0 # type: Optional[int] + self.subtests = [] # type: List[Test] self.log = [] # type: List[str] + self.counts = TestCounts() def __str__(self) -> str: - return 'TestCase(' + str(self.status) + ',' + self.name + ',' + str(self.log) + ')' + """ + Returns string representation of a Test class object. + + Parameters: + None + + Return: + str - string representation of the Test class object + """ + return ('Test(' + str(self.status) + ', ' + self.name + ', ' + + str(self.expected_count) + ', ' + str(self.subtests) + + ', ' + str(self.log) + ', ' + str(self.counts) + ')') def __repr__(self) -> str: + """ + Returns string representation of a Test class object. + + Parameters: + None + + Return: + str - string representation of the Test class object + """ return str(self) + def add_error(self, message: str): + """ + Adds error to test object by printing the error and + incrementing the error count. + + Parameters: + message : str - error message to print + + Return: + None + """ + print_error('Test ' + self.name + ': ' + message) + self.counts.errors += 1 + class TestStatus(Enum): + """An enumeration class to represent the status of a test.""" SUCCESS = auto() FAILURE = auto() SKIPPED = auto() @@ -48,385 +103,889 @@ class TestStatus(Enum): NO_TESTS = auto() FAILURE_TO_PARSE_TESTS = auto() +class TestCounts: + """ + A class to represent the counts of statuses and test errors of + subtests or of the test itself if the test is a single test case with + no subtests. Note that the sum of the counts of passed, failed, + crashed, and skipped should sum to the total number of subtests for + the test. + + Attributes: + passed : int - the number of tests that have passed + failed : int - the number of tests that have failed + crashed : int - the number of tests that have crashed + skipped : int - the number of tests that have skipped + errors : int - the number of errors in the test and subtests + """ + def __init__(self): + """ + Contructs the default attributes of a TestCounts class object. + Sets the counts of all test statuses and test errors to be 0. + + Parameters: + None + + Return: + None + """ + self.passed = 0 + self.failed = 0 + self.crashed = 0 + self.skipped = 0 + self.errors = 0 + + def __str__(self) -> str: + """ + Returns total number of subtests or 1 if the test object has + no subtests. This number is calculated by the sum of the + passed, failed, crashed, and skipped subtests. + + Parameters: + None + + Return: + str - string representing TestCounts object. + """ + return ('Passed: ' + str(self.passed) + ', Failed: ' + + str(self.failed) + ', Crashed: ' + str(self.crashed) + + ', Skipped: ' + str(self.skipped) + ', Errors: ' + + str(self.errors)) + + def total(self) -> int: + """ + Returns total number of subtests or 1 if the test object has + no subtests. This number is calculated by the sum of the + passed, failed, crashed, and skipped subtests. + + Parameters: + None + + Return: + int - the total number of subtests or 1 if the test object has + no subtests + """ + return self.passed + self.failed + self.crashed + self.skipped + + def add_subtest_counts(self, counts: TestCounts) -> None: + """ + Adds the counts of another TestCounts object to the current + TestCounts object. Used to add the counts of a subtest to the + parent test. + + Parameters: + counts : TestCounts - another TestCounts object whose counts + will be added to the counts of the TestCounts object + + Return: + None + """ + self.passed += counts.passed + self.failed += counts.failed + self.crashed += counts.crashed + self.skipped += counts.skipped + self.errors += counts.errors + + def get_status(self) -> TestStatus: + """ + Returns the expected status of a Test using test counts. + + Parameters: + None + + Return: + TestStatus - expected status of a Test given test counts + """ + if self.crashed: + # If one of the subtests crash, the expected status of + # the Test is crashed. + return TestStatus.TEST_CRASHED + elif self.failed: + # Otherwise if one of the subtests fail, the + # expected status of the Test is failed. + return TestStatus.FAILURE + elif self.passed: + # Otherwise if one of the subtests pass, the + # expected status of the Test is passed. + return TestStatus.SUCCESS + else: + # Finally, if none of the subtests have failed, + # crashed, or passed, the expected status of the + # Test is skipped. + return TestStatus.SKIPPED + + def add_status(self, status: TestStatus) -> None: + """ + Given inputted status, increments corresponding attribute of + TestCounts object. + + Parameters: + status : TestStatus - status to be added to the TestCounts + object + + Return: + None + """ + if status == TestStatus.SUCCESS or \ + status == TestStatus.NO_TESTS: + # if status is NO_TESTS the most appropriate attribute + # to increment is passed because the test did not + # fail, crash or get skipped. + self.passed += 1 + elif status == TestStatus.FAILURE: + self.failed += 1 + elif status == TestStatus.SKIPPED: + self.skipped += 1 + else: + self.crashed += 1 + class LineStream: - """Provides a peek()/pop() interface over an iterator of (line#, text).""" + """ + A class to represent the lines of kernel output. + Provides a peek()/pop() interface over an iterator of + (line#, text). + + Attributes: + _lines : Iterator[Tuple[int, str]] - Iterator containing tuple of + line number and line of kernel output + _next : Tuple[int, str] - Tuple containing next line and the + corresponding line number + _done : bool - boolean denoting whether the LineStream has reached + the end of the lines + """ _lines: Iterator[Tuple[int, str]] _next: Tuple[int, str] _done: bool def __init__(self, lines: Iterator[Tuple[int, str]]): + """Set defaults for LineStream object and sets _lines + attribute to lines parameter. + """ self._lines = lines self._done = False self._next = (0, '') self._get_next() def _get_next(self) -> None: + """Sets _next attribute to the upcoming Tuple of line and + line number in the LineStream. + """ try: self._next = next(self._lines) except StopIteration: self._done = True def peek(self) -> str: + """Returns the line stored in the _next attribute.""" return self._next[1] def pop(self) -> str: + """Returns the line stored in the _next attribute and sets the + _next attribute to the following line and line number Tuple. + """ n = self._next self._get_next() return n[1] def __bool__(self) -> bool: + """Returns whether the LineStream has reached the end of the + lines. + """ return not self._done # Only used by kunit_tool_test.py. def __iter__(self) -> Iterator[str]: + """Returns an Iterator object containing all of the lines + stored in the LineStream object. This method also empties the + LineStream so it reaches the end of the lines. + """ while bool(self): yield self.pop() def line_number(self) -> int: + """Returns the line number of the upcoming line.""" return self._next[0] -kunit_start_re = re.compile(r'TAP version [0-9]+$') -kunit_end_re = re.compile('(List of all partitions:|' - 'Kernel panic - not syncing: VFS:|reboot: System halted)') +# Parsing helper methods: + +KTAP_START = re.compile(r'KTAP version ([0-9]+)$') +TAP_START = re.compile(r'TAP version ([0-9]+)$') +KTAP_END = re.compile('(List of all partitions:|' + 'Kernel panic - not syncing: VFS:|reboot: System halted)') def extract_tap_lines(kernel_output: Iterable[str]) -> LineStream: - def isolate_kunit_output(kernel_output: Iterable[str]) -> Iterator[Tuple[int, str]]: + """ + Returns LineStream object of extracted ktap lines within + inputted kernel output. + + Parameters: + kernel_output : Iterable[str] - iterable object contains lines + of kernel output + + Return: + LineStream - LineStream object containing extracted ktap lines. + """ + def isolate_ktap_output(kernel_output: Iterable[str]) \ + -> Iterator[Tuple[int, str]]: + """ + Helper method of extract_tap_lines that yields extracted + ktap lines within inputted kernel output. Output is used to + create LineStream object in isolate_ktap_output. + + Parameters: + kernel_output : Iterable[str] - iterable object contains lines + of kernel output + + Return: + Iterator[Tuple[int, str]] - Iterator object containing tuples + with extracted ktap lines and their correesponding line + number. + """ line_num = 0 started = False for line in kernel_output: line_num += 1 - line = line.rstrip() # line always has a trailing \n - if kunit_start_re.search(line): + line = line.rstrip() # remove trailing \n + if not started and KTAP_START.search(line): + prefix_len = len( + line.split('KTAP version')[0]) + started = True + yield line_num, line[prefix_len:] + elif not started and TAP_START.search(line): prefix_len = len(line.split('TAP version')[0]) started = True yield line_num, line[prefix_len:] - elif kunit_end_re.search(line): + elif started and KTAP_END.search(line): break elif started: - yield line_num, line[prefix_len:] - return LineStream(lines=isolate_kunit_output(kernel_output)) - -def raw_output(kernel_output) -> None: + # remove prefix and indention + line = line[prefix_len:].lstrip() + yield line_num, line + return LineStream(lines=isolate_ktap_output(kernel_output)) + +def raw_output(kernel_output: Iterable[str]) -> None: + """ + Prints all of given kernel output. + + Parameters: + kernel_output : Iterable[str] - iterable object contains lines + of kernel output + + Return: + None + """ for line in kernel_output: print(line.rstrip()) -DIVIDER = '=' * 60 - -RESET = '\033[0;0m' - -def red(text) -> str: - return '\033[1;31m' + text + RESET - -def yellow(text) -> str: - return '\033[1;33m' + text + RESET +KTAP_VERSIONS = [1] +TAP_VERSIONS = [13, 14] + +def check_version(version_num: int, accepted_versions: List[int], \ + version_type: str, test: Test) -> None: + """ + Adds errors to the test if the version number is too high or too low. + + Parameters: + version_num : int - The inputted version number from the parsed + ktap or tap header line + accepted_version : List[int] - List of accepted ktap or tap versions + version_type : str - 'KTAP' or 'TAP' depending on the type of + version line. + test : Test - Test object representing current test object being + parsed + + Return: + None + """ + if version_num < min(accepted_versions): + test.add_error(version_type + ' version lower than expected!') + elif version_num > max(accepted_versions): + test.add_error( + version_type + ' version higher than expected!') + +def parse_ktap_header(lines: LineStream, test: Test) -> bool: + """ + If the next line in LineStream matches the format of ktap or tap + header line, the version number is checked, the line is popped, + and returns True. Otherwise the method returns False. + + Accepted formats: + - 'KTAP version [version number]' + - 'TAP version [version number]' + + Parameters: + lines : LineStream - LineStream object containing ktap lines from + kernel output + test : Test - Test object representing current test object being + parsed + + Return: + bool : Represents if the next line in the LineStream was parsed as + the ktap or tap header line + """ + ktap_match = KTAP_START.match(lines.peek()) + tap_match = TAP_START.match(lines.peek()) + if ktap_match: + version_num = int(ktap_match.group(1)) + check_version(version_num, KTAP_VERSIONS, 'KTAP', test) + elif tap_match: + version_num = int(tap_match.group(1)) + check_version(version_num, TAP_VERSIONS, 'TAP', test) + else: + return False + test.log.append(lines.pop()) + return True + +TEST_HEADER = re.compile(r'^# Subtest: (.*)$') + +def parse_test_header(lines: LineStream, test: Test) -> bool: + """ + If the next line in LineStream matches the format of a test + header line, the name of test is set, the line is popped, + and returns True. Otherwise the method returns False. + + Accepted format: + - '# Subtest: [test name]' + + Parameters: + lines : LineStream - LineStream object containing ktap lines from + kernel output + test : Test - Test object representing current test object being + parsed + + Return: + bool : Represents if the next line in the LineStream was parsed as + a test header + """ + match = TEST_HEADER.match(lines.peek()) + if not match: + return False + test.log.append(lines.pop()) + test.name = match.group(1) + return True + +TEST_PLAN = re.compile(r'1\.\.([0-9]+)') + +def parse_test_plan(lines: LineStream, test: Test) -> bool: + """ + If the next line in LineStream matches the format of a test + plan line, the expected number of subtests is set in test object, an + error is thrown if there are 0 tests, the line is popped, + and returns True. Otherwise the method adds an error that the test + plan is missing to the test object and returns False. + + Accepted format: + - '1..[number of subtests]' + + Parameters: + lines : LineStream - LineStream object containing ktap lines from + kernel output + test : Test - Test object representing current test object being + parsed + + Return: + bool : Represents if the next line in the LineStream was parsed as + a test plan + """ + match = TEST_PLAN.match(lines.peek()) + if not match: + test.expected_count = None + test.add_error('missing plan line!') + return False + test.log.append(lines.pop()) + expected_count = int(match.group(1)) + test.expected_count = expected_count + if expected_count == 0: + test.status = TestStatus.NO_TESTS + test.add_error('0 tests run!') + return True + +TEST_RESULT = re.compile(r'^(ok|not ok) ([0-9]+) (- )?(.*)$') + +TEST_RESULT_SKIP = re.compile(r'^(ok|not ok) ([0-9]+) (- )?(.*) # SKIP(.*)$') + +def peek_test_name_match(lines: LineStream, test: Test) -> bool: + """ + If the next line in LineStream matches the format of a test + result line and the name of the result line matches the name of the + current test, the method returns True. Otherwise it returns False. + + Accepted format: + - '[ok|not ok] [test number] [-] [test name] [optional skip + directive]' + + Parameters: + lines : LineStream - LineStream object containing ktap lines from + kernel output + test : Test - Test object representing current test object being + parsed + + Return: + bool : Represents if the next line in the LineStream matched a test + result line and the name matched the test name + """ + line = lines.peek() + match = TEST_RESULT.match(line) + if not match: + return False + name = match.group(4) + return (name == test.name) + +def parse_test_result(lines: LineStream, test: Test, expected_num: int) \ + -> bool: + """ + If the next line in LineStream matches the format of a test + result line, the status in the result line is added to the test + object, the test number is checked to match the expected test number + and if not an error is added to the test object, and returns True. + Otherwise it returns False. Note that the skip diirective is the only + directive that causes a change in status and otherwise the directive + is included in the name of the test. + + Accepted format: + - '[ok|not ok] [test number] [-] [test name] [optional skip + directive]' + + Parameters: + lines : LineStream - LineStream object containing ktap lines from + kernel output + test : Test - Test object representing current test object being + parsed + expected_num : int - expected test number for current test + + Return: + bool : Represents if the next line in the LineStream was parsed as a + test result line. + """ + line = lines.peek() + match = TEST_RESULT.match(line) + skip_match = TEST_RESULT_SKIP.match(line) -def green(text) -> str: - return '\033[1;32m' + text + RESET + # Check if line matches test result line format + if not match: + return False + test.log.append(lines.pop()) -def print_with_timestamp(message) -> None: - print('[%s] %s' % (datetime.now().strftime('%H:%M:%S'), message)) + # Check test num + num = int(match.group(2)) + if num != expected_num: + test.add_error('Expected test number ' + + str(expected_num) + ' but found ' + str(num)) -def format_suite_divider(message) -> str: - return '======== ' + message + ' ========' + # Set name of test object + if skip_match: + test.name = skip_match.group(4) + else: + test.name = match.group(4) -def print_suite_divider(message) -> None: - print_with_timestamp(DIVIDER) - print_with_timestamp(format_suite_divider(message)) + # Set status of test object + status = match.group(1) + if test.status == TestStatus.TEST_CRASHED: + return True + elif skip_match: + test.status = TestStatus.SKIPPED + elif status == 'ok': + test.status = TestStatus.SUCCESS + else: + test.status = TestStatus.FAILURE + return True + +DIAGNOSTIC_CRASH_MESSAGE = re.compile(r'^# .*?: kunit test case crashed!$') + +def parse_diagnostic(lines: LineStream, test: Test) -> None: + """ + If the next line in LineStream does not match the format of a test + case line or test header line, the line is checked if the test has + crashed and if so adds an error message, pops the line and adds it to + the log. + + Line formats that are not parsed: + - '# Subtest: [test name]' + - '[ok|not ok] [test number] [-] [test name] [optional skip + directive]' + + Parameters: + lines : LineStream - LineStream object containing ktap lines from + kernel output + test : Test - Test object representing current test object being + parsed + + Return: + None + """ + while lines and not TEST_RESULT.match(lines.peek()) and not \ + TEST_HEADER.match(lines.peek()): + if DIAGNOSTIC_CRASH_MESSAGE.match(lines.peek()): + test.status = TestStatus.TEST_CRASHED + test.log.append(lines.pop()) + +# Printing helper methods: -def print_log(log) -> None: - for m in log: - print_with_timestamp(m) +DIVIDER = '=' * 60 -TAP_ENTRIES = re.compile(r'^(TAP|[\s]*ok|[\s]*not ok|[\s]*[0-9]+\.\.[0-9]+|[\s]*#).*$') +RESET = '\033[0;0m' -def consume_non_diagnostic(lines: LineStream) -> None: - while lines and not TAP_ENTRIES.match(lines.peek()): - lines.pop() +def red(text: str) -> str: + """ + Returns string with added red ansi color code at beginning and reset + code at end. -def save_non_diagnostic(lines: LineStream, test_case: TestCase) -> None: - while lines and not TAP_ENTRIES.match(lines.peek()): - test_case.log.append(lines.peek()) - lines.pop() + Parameters: + text: str -> text to be made red with ansi color codes -OkNotOkResult = namedtuple('OkNotOkResult', ['is_ok','description', 'text']) + Return: + str - original text made red with ansi color codes + """ + return '\033[1;31m' + text + RESET -OK_NOT_OK_SKIP = re.compile(r'^[\s]*(ok|not ok) [0-9]+ - (.*) # SKIP(.*)$') +def yellow(text: str) -> str: + """ + Returns string with added yellow ansi color code at beginning and + reset code at end. -OK_NOT_OK_SUBTEST = re.compile(r'^[\s]+(ok|not ok) [0-9]+ - (.*)$') + Parameters: + text: str -> text to be made yellow with ansi color codes -OK_NOT_OK_MODULE = re.compile(r'^(ok|not ok) ([0-9]+) - (.*)$') + Return: + str - original text made yellow with ansi color codes + """ + return '\033[1;33m' + text + RESET -def parse_ok_not_ok_test_case(lines: LineStream, test_case: TestCase) -> bool: - save_non_diagnostic(lines, test_case) - if not lines: - test_case.status = TestStatus.TEST_CRASHED - return True - line = lines.peek() - match = OK_NOT_OK_SUBTEST.match(line) - while not match and lines: - line = lines.pop() - match = OK_NOT_OK_SUBTEST.match(line) - if match: - test_case.log.append(lines.pop()) - test_case.name = match.group(2) - skip_match = OK_NOT_OK_SKIP.match(line) - if skip_match: - test_case.status = TestStatus.SKIPPED - return True - if test_case.status == TestStatus.TEST_CRASHED: - return True - if match.group(1) == 'ok': - test_case.status = TestStatus.SUCCESS - else: - test_case.status = TestStatus.FAILURE - return True - else: - return False +def green(text: str) -> str: + """ + Returns string with added green ansi color code at beginning and reset + code at end. -SUBTEST_DIAGNOSTIC = re.compile(r'^[\s]+# (.*)$') -DIAGNOSTIC_CRASH_MESSAGE = re.compile(r'^[\s]+# .*?: kunit test case crashed!$') + Parameters: + text: str -> text to be made green with ansi color codes -def parse_diagnostic(lines: LineStream, test_case: TestCase) -> bool: - save_non_diagnostic(lines, test_case) - if not lines: - return False - line = lines.peek() - match = SUBTEST_DIAGNOSTIC.match(line) - if match: - test_case.log.append(lines.pop()) - crash_match = DIAGNOSTIC_CRASH_MESSAGE.match(line) - if crash_match: - test_case.status = TestStatus.TEST_CRASHED - return True - else: - return False + Return: + str - original text made green with ansi color codes + """ + return '\033[1;32m' + text + RESET -def parse_test_case(lines: LineStream) -> Optional[TestCase]: - test_case = TestCase() - save_non_diagnostic(lines, test_case) - while parse_diagnostic(lines, test_case): - pass - if parse_ok_not_ok_test_case(lines, test_case): - return test_case - else: - return None +ANSI_LEN = len(red('')) -SUBTEST_HEADER = re.compile(r'^[\s]+# Subtest: (.*)$') +def print_with_timestamp(message: str) -> None: + """ + Prints message with timestamp at beginning. -def parse_subtest_header(lines: LineStream) -> Optional[str]: - consume_non_diagnostic(lines) - if not lines: - return None - match = SUBTEST_HEADER.match(lines.peek()) - if match: - lines.pop() - return match.group(1) - else: - return None + Parameters: + message: str -> message to be printed -SUBTEST_PLAN = re.compile(r'[\s]+[0-9]+\.\.([0-9]+)') + Return: + None + """ + print('[%s] %s' % (datetime.now().strftime('%H:%M:%S'), message)) -def parse_subtest_plan(lines: LineStream) -> Optional[int]: - consume_non_diagnostic(lines) - match = SUBTEST_PLAN.match(lines.peek()) - if match: - lines.pop() - return int(match.group(1)) +def format_test_divider(message: str, len_message: int) -> str: + """ + Returns string with message centered in fixed width divider. + + Example: + '===================== message example =====================' + + Parameters: + message: str -> message to be centered in divider line + len_message : int -> length of the message to be printed in the + divider such that the ansi codes are not counted if the + message is colored. + + Return: + str - string containing message centered in fixed width divider + """ + default_count = 3 # default number of dashes + len_1 = default_count + len_2 = default_count + difference = len(DIVIDER) - len_message - 2 # 2 spaces added + if difference > 0: + # calculate number of dashes for each side of the divider + len_1 = int(difference / 2) + len_2 = difference - len_1 + return ('=' * len_1) + ' ' + message + ' ' + ('=' * len_2) + +def print_test_header(test: Test) -> None: + """ + Prints test header with test name and optionally the expected number + of subtests. + + Example: + '=================== example (2 subtests) ===================' + + Parameters: + test: Test -> Test object representing current test object being + parsed and information used to print test header + + Return: + None + """ + message = test.name + if test.expected_count: + message += ' (' + str(test.expected_count) + ' subtests)' + print_with_timestamp(format_test_divider(message, len(message))) + +def print_log(log: Iterable[str]) -> None: + """ + Prints all strings in saved log for test in yellow. + + Parameters: + log: Iterable[str] -> Iterable object with all strings saved in log + for test + + Return: + None + """ + for m in log: + print_with_timestamp(yellow(m)) + print_with_timestamp('') + +def format_test_result(test: Test) -> str: + """ + Returns string with formatted test result with colored status and test + name. + + Example: + '[PASSED] example' + + Parameters: + test: Test -> Test object representing current test object being + parsed and information used to print test result + + Return: + str - string containing formatted test result + """ + if test.status == TestStatus.SUCCESS: + return (green('[PASSED] ') + test.name) + elif test.status == TestStatus.SKIPPED: + return (yellow('[SKIPPED] ') + test.name) + elif test.status == TestStatus.TEST_CRASHED: + print_log(test.log) + return (red('[CRASHED] ') + test.name) else: - return None - -def max_status(left: TestStatus, right: TestStatus) -> TestStatus: - if left == right: - return left - elif left == TestStatus.TEST_CRASHED or right == TestStatus.TEST_CRASHED: - return TestStatus.TEST_CRASHED - elif left == TestStatus.FAILURE or right == TestStatus.FAILURE: - return TestStatus.FAILURE - elif left == TestStatus.SKIPPED: - return right + print_log(test.log) + return (red('[FAILED] ') + test.name) + +def print_test_result(test: Test) -> None: + """ + Prints result line with status of test. + + Example: + '[PASSED] example' + + Parameters: + test: Test -> Test object representing current test object being + parsed and information used to print test result line + + Return: + None + """ + print_with_timestamp(format_test_result(test)) + +def print_test_footer(test: Test) -> None: + """ + Prints test footer with status of test. + + Example: + '===================== [PASSED] example =====================' + + Parameters: + test: Test -> Test object representing current test object being + parsed and information used to print test footer + + Return: + None + """ + message = format_test_result(test) + print_with_timestamp(format_test_divider(message, + len(message) - ANSI_LEN)) + +def print_summary_line(test: Test) -> None: + """ + Prints summary line of test object. Color of line is dependent on + status of test. Color is green if test passes, yellow if test is + skipped, and red if the test fails or crashes. Summary line contains + counts of the statuses of the tests subtests or the test itself if it + has no subtests. + + Example: + 'Testing complete. Passed: 2, Failed: 0, Crashed: 0, Skipped: 0, \ + Errors: 0' + + Parameters: + test: Test -> Test object representing current test object being + parsed and information used to print test summary line + + Return: + None + """ + if test.status == TestStatus.SUCCESS or \ + test.status == TestStatus.NO_TESTS: + color = green + elif test.status == TestStatus.SKIPPED: + color = yellow else: - return left - -def parse_ok_not_ok_test_suite(lines: LineStream, - test_suite: TestSuite, - expected_suite_index: int) -> bool: - consume_non_diagnostic(lines) - if not lines: - test_suite.status = TestStatus.TEST_CRASHED - return False - line = lines.peek() - match = OK_NOT_OK_MODULE.match(line) - if match: - lines.pop() - if match.group(1) == 'ok': - test_suite.status = TestStatus.SUCCESS - else: - test_suite.status = TestStatus.FAILURE - skip_match = OK_NOT_OK_SKIP.match(line) - if skip_match: - test_suite.status = TestStatus.SKIPPED - suite_index = int(match.group(2)) - if suite_index != expected_suite_index: - print_with_timestamp( - red('[ERROR] ') + 'expected_suite_index ' + - str(expected_suite_index) + ', but got ' + - str(suite_index)) - return True + color = red + counts = test.counts + print_with_timestamp(color('Testing complete. ' + str(counts))) + +def print_error(message: str) -> None: + """ + Prints message with error format. + + Parameters: + message: str -> message to be used as error message + + Return: + None + """ + print_with_timestamp(red('[ERROR] ') + message) + +# Other methods: + +def bubble_up_test_results(test: Test) -> None: + """ + If the test has subtests, add the test counts of the subtests to the + test and check if any of the tests crashed and if so set the test + status to crashed. Otherwise if the test has no subtests add the + status of the test to the test counts. + + Parameters: + test : Test - Test object representing current test object being + parsed + + Return: + None + """ + subtests = test.subtests + counts = test.counts + status = test.status + for t in subtests: + counts.add_subtest_counts(t.counts) + if counts.total() == 0: + counts.add_status(status) + elif test.counts.get_status() == TestStatus.TEST_CRASHED: + test.status = TestStatus.TEST_CRASHED + +def parse_test(lines: LineStream, expected_num: int) -> Test: + """ + Finds next test to parse in LineStream, creates new Test object, + parses any subtests of the test, populates Test object with all + information (status, name) about the test and the Test objects for + any subtests, and then returns the Test object. The method accepts + three formats of tests: + + Accepted test formats: + + - Main KTAP/TAP header + + Example: + + KTAP version 1 + 1..4 + [subtests] + + - Subtest header line + + Example: + + # Subtest: name + 1..3 + [subtests] + ok 1 name + + - Test result line + + Example: + + ok 1 - test + + Parameters: + lines : LineStream - LineStream object containing ktap lines from + kernel output + expected_num : int - expected test number for test to be parsed + + Return: + Test : Test object populated with characteristics and containing any + subtests + """ + test = Test() + parent_test = False + main = parse_ktap_header(lines, test) + if main: + # If KTAP/TAP header is found, attempt to parse + # test plan + parse_test_plan(lines, test) else: - return False - -def bubble_up_errors(status_list: Iterable[TestStatus]) -> TestStatus: - return reduce(max_status, status_list, TestStatus.SKIPPED) - -def bubble_up_test_case_errors(test_suite: TestSuite) -> TestStatus: - max_test_case_status = bubble_up_errors(x.status for x in test_suite.cases) - return max_status(max_test_case_status, test_suite.status) - -def parse_test_suite(lines: LineStream, expected_suite_index: int) -> Optional[TestSuite]: - if not lines: - return None - consume_non_diagnostic(lines) - test_suite = TestSuite() - test_suite.status = TestStatus.SUCCESS - name = parse_subtest_header(lines) - if not name: - return None - test_suite.name = name - expected_test_case_num = parse_subtest_plan(lines) - if expected_test_case_num is None: - return None - while expected_test_case_num > 0: - test_case = parse_test_case(lines) - if not test_case: + # If KTAP/TAP header is not found, test must be subtest + # header or test result line so parse attempt to parser + # subtest header + parse_diagnostic(lines, test) + parent_test = parse_test_header(lines, test) + if parent_test: + # If subtest header is found, attempt to parse + # test plan and print header + parse_test_plan(lines, test) + print_test_header(test) + expected_count = test.expected_count + subtests = [] + test_num = 1 + while main or expected_count is None or test_num <= expected_count: + # Loop to parse any subtests. + # If test is main test, do not break until no lines left. + # Otherwise, break after parsing expected number of tests or + # if expected number of tests is unknown break when found + # test result line with matching name to subtest header. + if not lines: + if expected_count and test_num <= expected_count: + test.add_error('missing expected subtests!') break - test_suite.cases.append(test_case) - expected_test_case_num -= 1 - if parse_ok_not_ok_test_suite(lines, test_suite, expected_suite_index): - test_suite.status = bubble_up_test_case_errors(test_suite) - return test_suite - elif not lines: - print_with_timestamp(red('[ERROR] ') + 'ran out of lines before end token') - return test_suite - else: - print(f'failed to parse end of suite "{name}", at line {lines.line_number()}: {lines.peek()}') - return None - -TAP_HEADER = re.compile(r'^TAP version 14$') - -def parse_tap_header(lines: LineStream) -> bool: - consume_non_diagnostic(lines) - if TAP_HEADER.match(lines.peek()): - lines.pop() - return True - else: - return False - -TEST_PLAN = re.compile(r'[0-9]+\.\.([0-9]+)') - -def parse_test_plan(lines: LineStream) -> Optional[int]: - consume_non_diagnostic(lines) - match = TEST_PLAN.match(lines.peek()) - if match: - lines.pop() - return int(match.group(1)) - else: - return None - -def bubble_up_suite_errors(test_suites: Iterable[TestSuite]) -> TestStatus: - return bubble_up_errors(x.status for x in test_suites) - -def parse_test_result(lines: LineStream) -> TestResult: - consume_non_diagnostic(lines) - if not lines or not parse_tap_header(lines): - return TestResult(TestStatus.FAILURE_TO_PARSE_TESTS, [], lines) - expected_test_suite_num = parse_test_plan(lines) - if expected_test_suite_num == 0: - return TestResult(TestStatus.NO_TESTS, [], lines) - elif expected_test_suite_num is None: - return TestResult(TestStatus.FAILURE_TO_PARSE_TESTS, [], lines) - test_suites = [] - for i in range(1, expected_test_suite_num + 1): - test_suite = parse_test_suite(lines, i) - if test_suite: - test_suites.append(test_suite) - else: - print_with_timestamp( - red('[ERROR] ') + ' expected ' + - str(expected_test_suite_num) + - ' test suites, but got ' + str(i - 2)) + if not expected_count and not main and \ + peek_test_name_match(lines, test): break - test_suite = parse_test_suite(lines, -1) - if test_suite: - print_with_timestamp(red('[ERROR] ') + - 'got unexpected test suite: ' + test_suite.name) - if test_suites: - return TestResult(bubble_up_suite_errors(test_suites), test_suites, lines) - else: - return TestResult(TestStatus.NO_TESTS, [], lines) - -class TestCounts: - passed: int - failed: int - crashed: int - skipped: int - - def __init__(self): - self.passed = 0 - self.failed = 0 - self.crashed = 0 - self.skipped = 0 - - def total(self) -> int: - return self.passed + self.failed + self.crashed + self.skipped - -def print_and_count_results(test_result: TestResult) -> TestCounts: - counts = TestCounts() - for test_suite in test_result.suites: - if test_suite.status == TestStatus.SUCCESS: - print_suite_divider(green('[PASSED] ') + test_suite.name) - elif test_suite.status == TestStatus.SKIPPED: - print_suite_divider(yellow('[SKIPPED] ') + test_suite.name) - elif test_suite.status == TestStatus.TEST_CRASHED: - print_suite_divider(red('[CRASHED] ' + test_suite.name)) + subtests.append(parse_test(lines, test_num)) + test_num += 1 + test.subtests = subtests + if not main: + # If not main test, look for test result line + parse_diagnostic(lines, test) + if (parent_test and peek_test_name_match(lines, test)) or \ + not parent_test: + parse_test_result(lines, test, expected_num) + if not parent_test: + print_test_result(test) else: - print_suite_divider(red('[FAILED] ') + test_suite.name) - for test_case in test_suite.cases: - if test_case.status == TestStatus.SUCCESS: - counts.passed += 1 - print_with_timestamp(green('[PASSED] ') + test_case.name) - elif test_case.status == TestStatus.SKIPPED: - counts.skipped += 1 - print_with_timestamp(yellow('[SKIPPED] ') + test_case.name) - elif test_case.status == TestStatus.TEST_CRASHED: - counts.crashed += 1 - print_with_timestamp(red('[CRASHED] ' + test_case.name)) - print_log(map(yellow, test_case.log)) - print_with_timestamp('') - else: - counts.failed += 1 - print_with_timestamp(red('[FAILED] ') + test_case.name) - print_log(map(yellow, test_case.log)) - print_with_timestamp('') - return counts + test.add_error('missing subtest result line!') + # Add statuses to TestCounts attribute in Test object + bubble_up_test_results(test) + if parent_test: + # If test has subtests and is not the main test object, print + # footer. + print_test_footer(test) + return test def parse_run_tests(kernel_output: Iterable[str]) -> TestResult: - counts = TestCounts() + """ + Using kernel output, extract ktap lines, parse the lines for test + results and print condensed test results and summary line . + + Parameters: + kernel_output : Iterable[str] - iterable object contains lines + of kernel output + + Return: + TestResult - Tuple containg status of main test object, main test + object with all subtests, and log of all ktap lines. + """ + print_with_timestamp(DIVIDER) lines = extract_tap_lines(kernel_output) - test_result = parse_test_result(lines) - if test_result.status == TestStatus.NO_TESTS: - print(red('[ERROR] ') + yellow('no tests run!')) - elif test_result.status == TestStatus.FAILURE_TO_PARSE_TESTS: - print(red('[ERROR] ') + yellow('could not parse test results!')) + test = Test() + if not lines: + test.add_error('invalid KTAP input!') + test.status = TestStatus.FAILURE_TO_PARSE_TESTS else: - counts = print_and_count_results(test_result) + test = parse_test(lines, 0) + if test.status != TestStatus.NO_TESTS: + test.status = test.counts.get_status() print_with_timestamp(DIVIDER) - if test_result.status == TestStatus.SUCCESS: - fmt = green - elif test_result.status == TestStatus.SKIPPED: - fmt = yellow - else: - fmt =red - print_with_timestamp( - fmt('Testing complete. %d tests run. %d failed. %d crashed. %d skipped.' % - (counts.total(), counts.failed, counts.crashed, counts.skipped))) - return test_result + print_summary_line(test) + return TestResult(test.status, test, lines) diff --git a/tools/testing/kunit/kunit_tool_test.py b/tools/testing/kunit/kunit_tool_test.py index 75045aa0f8a1..ca760ee32096 100755 --- a/tools/testing/kunit/kunit_tool_test.py +++ b/tools/testing/kunit/kunit_tool_test.py @@ -106,10 +106,10 @@ class KUnitParserTest(unittest.TestCase): with open(log_path) as file: result = kunit_parser.extract_tap_lines(file.readlines()) self.assertContains('TAP version 14', result) - self.assertContains(' # Subtest: example', result) - self.assertContains(' 1..2', result) - self.assertContains(' ok 1 - example_simple_test', result) - self.assertContains(' ok 2 - example_mock_test', result) + self.assertContains('# Subtest: example', result) + self.assertContains('1..2', result) + self.assertContains('ok 1 - example_simple_test', result) + self.assertContains('ok 2 - example_mock_test', result) self.assertContains('ok 1 - example', result) def test_output_with_prefix_isolated_correctly(self): @@ -117,28 +117,28 @@ class KUnitParserTest(unittest.TestCase): with open(log_path) as file: result = kunit_parser.extract_tap_lines(file.readlines()) self.assertContains('TAP version 14', result) - self.assertContains(' # Subtest: kunit-resource-test', result) - self.assertContains(' 1..5', result) - self.assertContains(' ok 1 - kunit_resource_test_init_resources', result) - self.assertContains(' ok 2 - kunit_resource_test_alloc_resource', result) - self.assertContains(' ok 3 - kunit_resource_test_destroy_resource', result) - self.assertContains(' foo bar #', result) - self.assertContains(' ok 4 - kunit_resource_test_cleanup_resources', result) - self.assertContains(' ok 5 - kunit_resource_test_proper_free_ordering', result) + self.assertContains('# Subtest: kunit-resource-test', result) + self.assertContains('1..5', result) + self.assertContains('ok 1 - kunit_resource_test_init_resources', result) + self.assertContains('ok 2 - kunit_resource_test_alloc_resource', result) + self.assertContains('ok 3 - kunit_resource_test_destroy_resource', result) + self.assertContains('foo bar #', result) + self.assertContains('ok 4 - kunit_resource_test_cleanup_resources', result) + self.assertContains('ok 5 - kunit_resource_test_proper_free_ordering', result) self.assertContains('ok 1 - kunit-resource-test', result) - self.assertContains(' foo bar # non-kunit output', result) - self.assertContains(' # Subtest: kunit-try-catch-test', result) - self.assertContains(' 1..2', result) - self.assertContains(' ok 1 - kunit_test_try_catch_successful_try_no_catch', + self.assertContains('foo bar # non-kunit output', result) + self.assertContains('# Subtest: kunit-try-catch-test', result) + self.assertContains('1..2', result) + self.assertContains('ok 1 - kunit_test_try_catch_successful_try_no_catch', result) - self.assertContains(' ok 2 - kunit_test_try_catch_unsuccessful_try_does_catch', + self.assertContains('ok 2 - kunit_test_try_catch_unsuccessful_try_does_catch', result) self.assertContains('ok 2 - kunit-try-catch-test', result) - self.assertContains(' # Subtest: string-stream-test', result) - self.assertContains(' 1..3', result) - self.assertContains(' ok 1 - string_stream_test_empty_on_creation', result) - self.assertContains(' ok 2 - string_stream_test_not_empty_after_add', result) - self.assertContains(' ok 3 - string_stream_test_get_string', result) + self.assertContains('# Subtest: string-stream-test', result) + self.assertContains('1..3', result) + self.assertContains('ok 1 - string_stream_test_empty_on_creation', result) + self.assertContains('ok 2 - string_stream_test_not_empty_after_add', result) + self.assertContains('ok 3 - string_stream_test_get_string', result) self.assertContains('ok 3 - string-stream-test', result) def test_parse_successful_test_log(self): @@ -148,6 +148,13 @@ class KUnitParserTest(unittest.TestCase): self.assertEqual( kunit_parser.TestStatus.SUCCESS, result.status) + def test_parse_successful_nested_tests_log(self): + all_passed_log = test_data_path('test_is_test_passed-all_passed_nested.log') + with open(all_passed_log) as file: + result = kunit_parser.parse_run_tests(file.readlines()) + self.assertEqual( + kunit_parser.TestStatus.SUCCESS, + result.status) def test_parse_failed_test_log(self): failed_log = test_data_path('test_is_test_passed-failure.log') @@ -162,17 +169,19 @@ class KUnitParserTest(unittest.TestCase): with open(empty_log) as file: result = kunit_parser.parse_run_tests( kunit_parser.extract_tap_lines(file.readlines())) - self.assertEqual(0, len(result.suites)) + self.assertEqual(0, len(result.test.subtests)) self.assertEqual( kunit_parser.TestStatus.FAILURE_TO_PARSE_TESTS, result.status) def test_no_tests(self): - empty_log = test_data_path('test_is_test_passed-no_tests_run_with_header.log') - with open(empty_log) as file: + header_log = test_data_path('test_is_test_passed-' + 'no_tests_run_with_header.log') + with open(header_log) as file: result = kunit_parser.parse_run_tests( - kunit_parser.extract_tap_lines(file.readlines())) - self.assertEqual(0, len(result.suites)) + kunit_parser.extract_tap_lines( + file.readlines())) + self.assertEqual(0, len(result.test.subtests)) self.assertEqual( kunit_parser.TestStatus.NO_TESTS, result.status) @@ -182,15 +191,17 @@ class KUnitParserTest(unittest.TestCase): print_mock = mock.patch('builtins.print').start() with open(crash_log) as file: result = kunit_parser.parse_run_tests( - kunit_parser.extract_tap_lines(file.readlines())) - print_mock.assert_any_call(StrContains('could not parse test results!')) + kunit_parser.extract_tap_lines( + file.readlines())) + print_mock.assert_any_call(StrContains('invalid KTAP input!')) print_mock.stop() file.close() def test_crashed_test(self): crashed_log = test_data_path('test_is_test_passed-crash.log') with open(crashed_log) as file: - result = kunit_parser.parse_run_tests(file.readlines()) + result = kunit_parser.parse_run_tests( + file.readlines()) self.assertEqual( kunit_parser.TestStatus.TEST_CRASHED, result.status) @@ -224,7 +235,7 @@ class KUnitParserTest(unittest.TestCase): self.assertEqual( kunit_parser.TestStatus.SUCCESS, result.status) - self.assertEqual('kunit-resource-test', result.suites[0].name) + self.assertEqual('kunit-resource-test', result.test.subtests[0].name) def test_ignores_multiple_prefixes(self): prefix_log = test_data_path('test_multiple_prefixes.log') @@ -233,7 +244,7 @@ class KUnitParserTest(unittest.TestCase): self.assertEqual( kunit_parser.TestStatus.SUCCESS, result.status) - self.assertEqual('kunit-resource-test', result.suites[0].name) + self.assertEqual('kunit-resource-test', result.test.subtests[0].name) def test_prefix_mixed_kernel_output(self): mixed_prefix_log = test_data_path('test_interrupted_tap_output.log') @@ -242,7 +253,7 @@ class KUnitParserTest(unittest.TestCase): self.assertEqual( kunit_parser.TestStatus.SUCCESS, result.status) - self.assertEqual('kunit-resource-test', result.suites[0].name) + self.assertEqual('kunit-resource-test', result.test.subtests[0].name) def test_prefix_poundsign(self): pound_log = test_data_path('test_pound_sign.log') @@ -251,16 +262,16 @@ class KUnitParserTest(unittest.TestCase): self.assertEqual( kunit_parser.TestStatus.SUCCESS, result.status) - self.assertEqual('kunit-resource-test', result.suites[0].name) + self.assertEqual('kunit-resource-test', result.test.subtests[0].name) def test_kernel_panic_end(self): panic_log = test_data_path('test_kernel_panic_interrupt.log') with open(panic_log) as file: result = kunit_parser.parse_run_tests(file.readlines()) self.assertEqual( - kunit_parser.TestStatus.TEST_CRASHED, + kunit_parser.TestStatus.SUCCESS, result.status) - self.assertEqual('kunit-resource-test', result.suites[0].name) + self.assertEqual('kunit-resource-test', result.test.subtests[0].name) def test_pound_no_prefix(self): pound_log = test_data_path('test_pound_no_prefix.log') @@ -269,7 +280,7 @@ class KUnitParserTest(unittest.TestCase): self.assertEqual( kunit_parser.TestStatus.SUCCESS, result.status) - self.assertEqual('kunit-resource-test', result.suites[0].name) + self.assertEqual('kunit-resource-test', result.test.subtests[0].name) class LinuxSourceTreeTest(unittest.TestCase): @@ -380,7 +391,7 @@ class KUnitMainTest(unittest.TestCase): self.assertEqual(e.exception.code, 1) self.assertEqual(self.linux_source_mock.build_reconfig.call_count, 1) self.assertEqual(self.linux_source_mock.run_kernel.call_count, 1) - self.print_mock.assert_any_call(StrContains(' 0 tests run')) + self.print_mock.assert_any_call(StrContains('invalid KTAP input!')) def test_exec_raw_output(self): self.linux_source_mock.run_kernel = mock.Mock(return_value=[]) @@ -388,7 +399,7 @@ class KUnitMainTest(unittest.TestCase): self.assertEqual(self.linux_source_mock.run_kernel.call_count, 1) for call in self.print_mock.call_args_list: self.assertNotEqual(call, mock.call(StrContains('Testing complete.'))) - self.assertNotEqual(call, mock.call(StrContains(' 0 tests run'))) + self.assertNotEqual(call, mock.call(StrContains('0 tests run!'))) def test_run_raw_output(self): self.linux_source_mock.run_kernel = mock.Mock(return_value=[]) @@ -397,7 +408,7 @@ class KUnitMainTest(unittest.TestCase): self.assertEqual(self.linux_source_mock.run_kernel.call_count, 1) for call in self.print_mock.call_args_list: self.assertNotEqual(call, mock.call(StrContains('Testing complete.'))) - self.assertNotEqual(call, mock.call(StrContains(' 0 tests run'))) + self.assertNotEqual(call, mock.call(StrContains('0 tests run!'))) def test_exec_timeout(self): timeout = 3453 diff --git a/tools/testing/kunit/test_data/test_is_test_passed-all_passed_nested.log b/tools/testing/kunit/test_data/test_is_test_passed-all_passed_nested.log new file mode 100644 index 000000000000..9d5b04fe43a6 --- /dev/null +++ b/tools/testing/kunit/test_data/test_is_test_passed-all_passed_nested.log @@ -0,0 +1,34 @@ +TAP version 14 +1..2 + # Subtest: sysctl_test + 1..4 + # sysctl_test_dointvec_null_tbl_data: sysctl_test_dointvec_null_tbl_data passed + ok 1 - sysctl_test_dointvec_null_tbl_data + # Subtest: example + 1..2 + init_suite + # example_simple_test: initializing + # example_simple_test: example_simple_test passed + ok 1 - example_simple_test + # example_mock_test: initializing + # example_mock_test: example_mock_test passed + ok 2 - example_mock_test + kunit example: all tests passed + ok 2 - example + # sysctl_test_dointvec_table_len_is_zero: sysctl_test_dointvec_table_len_is_zero passed + ok 3 - sysctl_test_dointvec_table_len_is_zero + # sysctl_test_dointvec_table_read_but_position_set: sysctl_test_dointvec_table_read_but_position_set passed + ok 4 - sysctl_test_dointvec_table_read_but_position_set +kunit sysctl_test: all tests passed +ok 1 - sysctl_test + # Subtest: example + 1..2 +init_suite + # example_simple_test: initializing + # example_simple_test: example_simple_test passed + ok 1 - example_simple_test + # example_mock_test: initializing + # example_mock_test: example_mock_test passed + ok 2 - example_mock_test +kunit example: all tests passed +ok 2 - example -- 2.33.0.rc2.250.ged5fa647cd-goog

4 years, 2 months

3
2
0 0

[PATCH bpf-next v7 0/5] sockmap: add sockmap support for unix stream socket

by Jiang Wang

This patch series add support for unix stream type for sockmap. Sockmap already supports TCP, UDP, unix dgram types. The unix stream support is similar to unix dgram. Also add selftests for unix stream type in sockmap tests. Jiang Wang (5): af_unix: add read_sock for stream socket types af_unix: add unix_stream_proto for sockmap selftest/bpf: add tests for sockmap with unix stream type. selftest/bpf: change udp to inet in some function names selftest/bpf: add new tests in sockmap for unix stream to tcp. include/net/af_unix.h | 8 +- net/core/sock_map.c | 1 + net/unix/af_unix.c | 95 ++++++++++++++++--- net/unix/unix_bpf.c | 93 +++++++++++++----- .../selftests/bpf/prog_tests/sockmap_listen.c | 48 ++++++---- 5 files changed, 191 insertions(+), 54 deletions(-) v1 -> v2 : - Call unhash in shutdown. - Clean up unix_create1 a bit. - Return -ENOTCONN if socket is not connected. v2 -> v3 : - check for stream type in update_proto - remove intermediate variable in __unix_stream_recvmsg - fix compile warning in unix_stream_recvmsg v3 -> v4 : - remove sk_is_unix_stream, just check TCP_ESTABLISHED for UNIX sockets. - add READ_ONCE in unix_dgram_recvmsg - remove type check in unix_stream_bpf_update_proto v4 -> v5 : - add two missing READ_ONCE for sk_prot. v5 -> v6 : - fix READ_ONCE by reading to a local variable first. v6 -> v7 : - fix the following compiler error when CONFIG_UNIX is m. modpost: "sock_map_unhash" [net/unix/unix.ko] undefined! For the series: Acked-by: John Fastabend <john.fastabend(a)gmail.com> Acked-by: Jakub Sitnicki <jakub(a)cloudflare.com> -- 2.20.1

4 years, 2 months

3
7
0 0

[PATCH v9 2/6] selftests/ftrace: Add clear_dynamic_events() to test cases

by Steven Rostedt

From: "Steven Rostedt (VMware)" <rostedt(a)goodmis.org> Add a function to remove all dynamic events from the tracing directory. It requires a loop as some of the dynamic events may depend on others being removed first. Also add a safety that prevents it from looping infinitely due to a bug where an event never gets removed. Link: https://lkml.kernel.org/r/20210819152825.348941368@goodmis.org Cc: Shuah Khan <shuah(a)kernel.org> Cc: Shuah Khan <skhan(a)linuxfoundation.org> Cc: linux-kselftest(a)vger.kernel.org Acked-by: Masami Hiramatsu <mhiramat(a)kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt(a)goodmis.org> --- .../testing/selftests/ftrace/test.d/functions | 22 +++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/tools/testing/selftests/ftrace/test.d/functions b/tools/testing/selftests/ftrace/test.d/functions index a6fac927ee82..f68d336b961b 100644 --- a/tools/testing/selftests/ftrace/test.d/functions +++ b/tools/testing/selftests/ftrace/test.d/functions @@ -83,6 +83,27 @@ clear_synthetic_events() { # reset all current synthetic events done } +clear_dynamic_events() { # reset all current dynamic events + again=1 + stop=1 + # loop mulitple times as some events require other to be removed first + while [ $again -eq 1 ]; do + stop=$((stop+1)) + # Prevent infinite loops + if [ $stop -gt 10 ]; then + break; + fi + again=2 + grep -v '^#' dynamic_events| + while read line; do + del=`echo $line | sed -e 's/^.$[^ ]*$.*/-\1/'` + if ! echo "$del" >> dynamic_events; then + again=1 + fi + done + done +} + initialize_ftrace() { # Reset ftrace to initial-state # As the initial state, ftrace will be set to nop tracer, # no events, no triggers, no filters, no function filters, @@ -93,6 +114,7 @@ initialize_ftrace() { # Reset ftrace to initial-state reset_events_filter reset_ftrace_filter disable_events + clear_dynamic_events [ -f set_event_pid ] && echo > set_event_pid [ -f set_ftrace_pid ] && echo > set_ftrace_pid [ -f set_ftrace_notrace ] && echo > set_ftrace_notrace -- 2.30.2

4 years, 2 months

1
0
0 0

[PATCH v3 0/2] add KSM performance tests

by Zhansaya Bagdauletkyzy

Extend KSM self tests with a performance benchmark. These tests are not part of regular regression testing, as they are mainly intended to be used by developers making changes to the memory management subsystem. This patchset is a respin of the previous series: v2: https://lkml.org/lkml/2021/8/6/422 v1: https://lkml.org/lkml/2021/8/1/130 Zhansaya Bagdauletkyzy (2): selftests: vm: add KSM merging time test selftests: vm: add COW time test for KSM pages v2 -> v3: - address COW test review comments v1 -> v2: - replace MB with MiB - address COW test review comments tools/testing/selftests/vm/ksm_tests.c | 154 ++++++++++++++++++++++++- 1 file changed, 150 insertions(+), 4 deletions(-) -- 2.25.1

4 years, 2 months

3
6
0 0

[PATCH] kselftest/arm64: pac: Fix skipping of tests on systems without PAC

by Mark Brown

The PAC tests check to see if the system supports the relevant PAC features but instead of skipping the tests if they can't be executed they fail the tests which makes things look like they're not working when they are. Signed-off-by: Mark Brown <broonie(a)kernel.org> --- tools/testing/selftests/arm64/pauth/pac.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/tools/testing/selftests/arm64/pauth/pac.c b/tools/testing/selftests/arm64/pauth/pac.c index 592fe538506e..b743daa772f5 100644 --- a/tools/testing/selftests/arm64/pauth/pac.c +++ b/tools/testing/selftests/arm64/pauth/pac.c @@ -25,13 +25,15 @@ do { \ unsigned long hwcaps = getauxval(AT_HWCAP); \ /* data key instructions are not in NOP space. This prevents a SIGILL */ \ - ASSERT_NE(0, hwcaps & HWCAP_PACA) TH_LOG("PAUTH not enabled"); \ + if (!(hwcaps & HWCAP_PACA)) \ + SKIP(return, "PAUTH not enabled"); \ } while (0) #define ASSERT_GENERIC_PAUTH_ENABLED() \ do { \ unsigned long hwcaps = getauxval(AT_HWCAP); \ /* generic key instructions are not in NOP space. This prevents a SIGILL */ \ - ASSERT_NE(0, hwcaps & HWCAP_PACG) TH_LOG("Generic PAUTH not enabled"); \ + if (!(hwcaps & HWCAP_PACG)) \ + SKIP(return, "Generic PAUTH not enabled"); \ } while (0) void sign_specific(struct signatures *sign, size_t val) @@ -256,7 +258,7 @@ TEST(single_thread_different_keys) unsigned long hwcaps = getauxval(AT_HWCAP); /* generic and data key instructions are not in NOP space. This prevents a SIGILL */ - ASSERT_NE(0, hwcaps & HWCAP_PACA) TH_LOG("PAUTH not enabled"); + ASSERT_PAUTH_ENABLED(); if (!(hwcaps & HWCAP_PACG)) { TH_LOG("WARNING: Generic PAUTH not enabled. Skipping generic key checks"); nkeys = NKEYS - 1; @@ -299,7 +301,7 @@ TEST(exec_changed_keys) unsigned long hwcaps = getauxval(AT_HWCAP); /* generic and data key instructions are not in NOP space. This prevents a SIGILL */ - ASSERT_NE(0, hwcaps & HWCAP_PACA) TH_LOG("PAUTH not enabled"); + ASSERT_PAUTH_ENABLED(); if (!(hwcaps & HWCAP_PACG)) { TH_LOG("WARNING: Generic PAUTH not enabled. Skipping generic key checks"); nkeys = NKEYS - 1; -- 2.20.1

4 years, 2 months

3
5
0 0

[PATCH v8 5/5] selftests/ftrace: Add selftest for testing duplicate eprobes and kprobes

by Steven Rostedt

From: "Steven Rostedt (VMware)" <rostedt(a)goodmis.org> Add a selftest that makes sure that eprobes and kprobes can not be created with the same group and name as existing events. Cc: Shuah Khan <shuah(a)kernel.org> Cc: Shuah Khan <skhan(a)linuxfoundation.org> Cc: linux-kselftest(a)vger.kernel.org Signed-off-by: Steven Rostedt (VMware) <rostedt(a)goodmis.org> --- .../ftrace/test.d/dynevent/test_duplicates.tc | 28 +++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 tools/testing/selftests/ftrace/test.d/dynevent/test_duplicates.tc diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/test_duplicates.tc b/tools/testing/selftests/ftrace/test.d/dynevent/test_duplicates.tc new file mode 100644 index 000000000000..022b569267ed --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/dynevent/test_duplicates.tc @@ -0,0 +1,28 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# description: Generic dynamic event - check if duplicate events are caught +# requires: dynamic_events "e[:[<group>/]<event>] <attached-group>.<attached-event>o [<args>]":README + +echo 0 > events/enable + +clear_dynamic_events + +# first create dynamic events for eprobes and kprobes. + +echo 'e:egroup/eevent syscalls/sys_enter_openat file=+0($filename):ustring' >> dynamic_events +echo 'p:kgroup/kevent vfs_open file=+0($arg2)' >> dynamic_events + +# Test eprobe for same eprobe, existing kprobe and existing event +! echo 'e:egroup/eevent syscalls/sys_enter_openat file=+0($filename):ustring' >> dynamic_events +! echo 'e:kgroup/kevent syscalls/sys_enter_openat file=+0($filename):ustring' >> dynamic_events +! echo 'e:syscalls/sys_enter_open syscalls/sys_enter_openat file=+0($filename):ustring' >> dynamic_events + +# Test kprobe for same kprobe, existing eprobe and existing event +! echo 'p:kgroup/kevent vfs_open file=+0($arg2)' >> dynamic_events +! echo 'p:egroup/eevent vfs_open file=+0($arg2)' >> dynamic_events +! echo 'p:syscalls/sys_enter_open vfs_open file=+0($arg2)' >> dynamic_events + +echo '-:egroup/eevent' >> dynamic_events +echo '-:kgroup/kevent' >> dynamic_events + +clear_trace -- 2.30.2

4 years, 2 months

2
2
0 0

[PATCH v8 4/5] selftests/ftrace: Add selftest for testing eprobe events

by Steven Rostedt

From: "Steven Rostedt (VMware)" <rostedt(a)goodmis.org> Add a test to test event probes, by creating a synthetic event across sys_enter_openat and sys_exit_openat that passes the filename pointer from the enter of the system call to the exit, and then add an event probe to the synthetic event to make sure that the file name is seen. Link: https://lkml.kernel.org/r/20210819041842.884828019@goodmis.org Cc: Shuah Khan <shuah(a)kernel.org> Cc: Shuah Khan <skhan(a)linuxfoundation.org> Cc: linux-kselftest(a)vger.kernel.org Signed-off-by: Steven Rostedt (VMware) <rostedt(a)goodmis.org> --- .../test.d/dynevent/add_remove_eprobe.tc | 53 +++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 tools/testing/selftests/ftrace/test.d/dynevent/add_remove_eprobe.tc diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_eprobe.tc b/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_eprobe.tc new file mode 100644 index 000000000000..7b242f29b916 --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_eprobe.tc @@ -0,0 +1,53 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# description: Generic dynamic event - add/remove eprobe events +# requires: dynamic_events "e[:[<group>/]<event>] <attached-group>.<attached-event> [<args>]":README + +echo 0 > events/enable + +clear_dynamic_events + +SYSTEM="syscalls" +START="sys_enter_openat" +END="sys_exit_openat" +FIELD="filename" +SYNTH="synth_open" +EPROBE="eprobe_open" + +echo "$SYNTH u64 filename; s64 ret;" > synthetic_events +echo "hist:keys=common_pid:__arg__1=$FIELD" > events/$SYSTEM/$START/trigger +echo "hist:keys=common_pid:filename=\$__arg__1,ret=ret:onmatch($SYSTEM.$START).trace($SYNTH,\$filename,\$ret)" > events/$SYSTEM/$END/trigger + +echo "e:$EPROBE synthetic/$SYNTH file=+0(\$filename):ustring ret=\$ret:s64" >> dynamic_events + +grep -q "$SYNTH" dynamic_events +grep -q "$EPROBE" dynamic_events +test -d events/synthetic/$SYNTH +test -d events/eprobes/$EPROBE + +echo 1 > events/eprobes/$EPROBE/enable +ls +echo 0 > events/eprobes/$EPROBE/enable + +content=`grep '^ *ls-' trace | grep 'file='` +nocontent=`grep '^ *ls-' trace | grep 'file=' | grep -v -e '"/' -e '"."'` || true + +if [ -z "$content" ]; then + exit_fail +fi + +if [ ! -z "$nocontent" ]; then + exit_fail +fi + +echo "-:$EPROBE" >> dynamic_events +echo '!'"hist:keys=common_pid:filename=\$__arg__1,ret=ret:onmatch($SYSTEM.$START).trace($SYNTH,\$filename,\$ret)" > events/$SYSTEM/$END/trigger +echo '!'"hist:keys=common_pid:__arg__1=$FIELD" > events/$SYSTEM/$START/trigger +echo '!'"$SYNTH u64 filename; s64 ret;" >> synthetic_events + +! grep -q "$SYNTH" dynamic_events +! grep -q "$EPROBE" dynamic_events +! test -d events/synthetic/$SYNTH +! test -d events/eprobes/$EPROBE + +clear_trace -- 2.30.2

4 years, 2 months

2
2
0 0

[PATCH linux-next] tools/net: Use bitwise instead of arithmetic operator for flags

by CGEL

From: jing yangyang <jing.yangyang(a)zte.com.cn> This silences the following coccinelle warning: "WARNING: sum of probable bitmasks, consider |" Reported-by: Zeal Robot <zealci(a)zte.com.cn> Signed-off-by: jing yangyang <jing.yangyang(a)zte.com.cn> --- tools/testing/selftests/net/psock_fanout.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/net/psock_fanout.c b/tools/testing/selftests/net/psock_fanout.c index db45213..3653d64 100644 --- a/tools/testing/selftests/net/psock_fanout.c +++ b/tools/testing/selftests/net/psock_fanout.c @@ -111,8 +111,8 @@ static int sock_fanout_open(uint16_t typeflags, uint16_t group_id) static void sock_fanout_set_cbpf(int fd) { struct sock_filter bpf_filter[] = { - BPF_STMT(BPF_LD+BPF_B+BPF_ABS, 80), /* ldb [80] */ - BPF_STMT(BPF_RET+BPF_A, 0), /* ret A */ + BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 80), /* ldb [80] */ + BPF_STMT(BPF_RET | BPF_A, 0), /* ret A */ }; struct sock_fprog bpf_prog; -- 1.8.3.1

4 years, 2 months

2
1
0 0

[PATCH] kselftest/arm64: mte: Fix misleading output when skipping tests

by Mark Brown

When skipping the tests due to a lack of system support for MTE we currently print a message saying FAIL which makes it look like the test failed even though the test did actually report KSFT_SKIP, creating some confusion. Change the error message to say SKIP instead so things are clearer. Signed-off-by: Mark Brown <broonie(a)kernel.org> --- tools/testing/selftests/arm64/mte/mte_common_util.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/arm64/mte/mte_common_util.c b/tools/testing/selftests/arm64/mte/mte_common_util.c index f50ac31920d1..0328a1e08f65 100644 --- a/tools/testing/selftests/arm64/mte/mte_common_util.c +++ b/tools/testing/selftests/arm64/mte/mte_common_util.c @@ -298,7 +298,7 @@ int mte_default_setup(void) int ret; if (!(hwcaps2 & HWCAP2_MTE)) { - ksft_print_msg("FAIL: MTE features unavailable\n"); + ksft_print_msg("SKIP: MTE features unavailable\n"); return KSFT_SKIP; } /* Get current mte mode */ -- 2.20.1

4 years, 2 months

2
1
0 0

[PATCH v2 0/5] selftests/bpf: minor fixups

by Li Zhijian

Fix a few issues reported by 0Day/LKP during runing selftests/bpf. Changelog: V2: - folded previous similar standalone patch to [1/5], and add acked tag from Song Liu - add acked tag to [2/5], [3/5] from Song Liu - [4/5]: move test_bpftool.py to TEST_PROGS_EXTENDED, files in TEST_GEN_PROGS_EXTENDED are generated by make. Otherwise, it will break out-of-tree install: 'make O=/kselftest-build SKIP_TARGETS= V=1 -C tools/testing/selftests install INSTALL_PATH=/kselftest-install' - [5/5]: new patch Li Zhijian (5): selftests/bpf: enlarge select() timeout for test_maps selftests/bpf: make test_doc_build.sh work from script directory selftests/bpf: add default bpftool built by selftests to PATH selftests/bpf: add missing files required by test_bpftool.sh for installing selftests/bpf: exit with KSFT_SKIP if no Makefile found tools/testing/selftests/bpf/Makefile | 4 +++- tools/testing/selftests/bpf/test_bpftool.sh | 6 ++++++ tools/testing/selftests/bpf/test_bpftool_build.sh | 2 +- tools/testing/selftests/bpf/test_doc_build.sh | 10 ++++++++-- tools/testing/selftests/bpf/test_maps.c | 2 +- 5 files changed, 19 insertions(+), 5 deletions(-) -- 2.32.0

4 years, 2 months

1
5
0 0

[PATCH 1/3] selftests/bpf: make test_doc_build.sh work from script directory

by Li Zhijian

Previously, it fails as below: ------------- root@lkp-skl-d01 /opt/rootfs/v5.14-rc4/tools/testing/selftests/bpf# ./test_doc_build.sh ++ realpath --relative-to=/opt/rootfs/v5.14-rc4/tools/testing/selftests/bpf ./test_doc_build.sh + SCRIPT_REL_PATH=test_doc_build.sh ++ dirname test_doc_build.sh + SCRIPT_REL_DIR=. ++ realpath /opt/rootfs/v5.14-rc4/tools/testing/selftests/bpf/./../../../../ + KDIR_ROOT_DIR=/opt/rootfs/v5.14-rc4 + cd /opt/rootfs/v5.14-rc4 + for tgt in docs docs-clean + make -s -C /opt/rootfs/v5.14-rc4/. docs make: *** No rule to make target 'docs'. Stop. + for tgt in docs docs-clean + make -s -C /opt/rootfs/v5.14-rc4/. docs-clean make: *** No rule to make target 'docs-clean'. Stop. ----------- Reported-by: kernel test robot <lkp(a)intel.com> Signed-off-by: Li Zhijian <lizhijian(a)cn.fujitsu.com> --- tools/testing/selftests/bpf/test_doc_build.sh | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/bpf/test_doc_build.sh b/tools/testing/selftests/bpf/test_doc_build.sh index ed12111cd2f0..d67ced95a6cf 100755 --- a/tools/testing/selftests/bpf/test_doc_build.sh +++ b/tools/testing/selftests/bpf/test_doc_build.sh @@ -4,9 +4,10 @@ set -e # Assume script is located under tools/testing/selftests/bpf/. We want to start # build attempts from the top of kernel repository. -SCRIPT_REL_PATH=$(realpath --relative-to=$PWD $0) +SCRIPT_REL_PATH=$(realpath $0) SCRIPT_REL_DIR=$(dirname $SCRIPT_REL_PATH) -KDIR_ROOT_DIR=$(realpath $PWD/$SCRIPT_REL_DIR/../../../../) +KDIR_ROOT_DIR=$(realpath $SCRIPT_REL_DIR/../../../../) +SCRIPT_REL_DIR=$(dirname $(realpath --relative-to=$KDIR_ROOT_DIR $SCRIPT_REL_PATH)) cd $KDIR_ROOT_DIR for tgt in docs docs-clean; do -- 2.32.0

4 years, 2 months

3
6
0 0

[PATCH v8 3/5] selftests/ftrace: Add clear_dynamic_events() to test cases

by Steven Rostedt

From: "Steven Rostedt (VMware)" <rostedt(a)goodmis.org> Add a function to remove all dynamic events from the tracing directory. It requires a loop as some of the dynamic events may depend on others being removed first. Also add a safety that prevents it from looping infinitely due to a bug where an event never gets removed. Link: https://lkml.kernel.org/r/20210819041842.696873153@goodmis.org Cc: Shuah Khan <shuah(a)kernel.org> Cc: Shuah Khan <skhan(a)linuxfoundation.org> Cc: linux-kselftest(a)vger.kernel.org Signed-off-by: Steven Rostedt (VMware) <rostedt(a)goodmis.org> --- .../testing/selftests/ftrace/test.d/functions | 22 +++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/tools/testing/selftests/ftrace/test.d/functions b/tools/testing/selftests/ftrace/test.d/functions index a6fac927ee82..f68d336b961b 100644 --- a/tools/testing/selftests/ftrace/test.d/functions +++ b/tools/testing/selftests/ftrace/test.d/functions @@ -83,6 +83,27 @@ clear_synthetic_events() { # reset all current synthetic events done } +clear_dynamic_events() { # reset all current dynamic events + again=1 + stop=1 + # loop mulitple times as some events require other to be removed first + while [ $again -eq 1 ]; do + stop=$((stop+1)) + # Prevent infinite loops + if [ $stop -gt 10 ]; then + break; + fi + again=2 + grep -v '^#' dynamic_events| + while read line; do + del=`echo $line | sed -e 's/^.$[^ ]*$.*/-\1/'` + if ! echo "$del" >> dynamic_events; then + again=1 + fi + done + done +} + initialize_ftrace() { # Reset ftrace to initial-state # As the initial state, ftrace will be set to nop tracer, # no events, no triggers, no filters, no function filters, @@ -93,6 +114,7 @@ initialize_ftrace() { # Reset ftrace to initial-state reset_events_filter reset_ftrace_filter disable_events + clear_dynamic_events [ -f set_event_pid ] && echo > set_event_pid [ -f set_ftrace_pid ] && echo > set_ftrace_pid [ -f set_ftrace_notrace ] && echo > set_ftrace_notrace -- 2.30.2

4 years, 2 months

2
1
0 0

[PATCH v2] selftests/bpf: enlarge select() timeout for test_maps

by Li Zhijian

0Day robot observed that it's easily timeout on a heavy load host. ------------------- # selftests: bpf: test_maps # Fork 1024 tasks to 'test_update_delete' # Fork 1024 tasks to 'test_update_delete' # Fork 100 tasks to 'test_hashmap' # Fork 100 tasks to 'test_hashmap_percpu' # Fork 100 tasks to 'test_hashmap_sizes' # Fork 100 tasks to 'test_hashmap_walk' # Fork 100 tasks to 'test_arraymap' # Fork 100 tasks to 'test_arraymap_percpu' # Failed sockmap unexpected timeout not ok 3 selftests: bpf: test_maps # exit=1 # selftests: bpf: test_lru_map # nr_cpus:8 ------------------- Since this test will be scheduled by 0Day to a random host that could have only a few cpus(2-8), enlarge the timeout to avoid a false NG report. In practice, i tried to pin it to only one cpu by 'taskset 0x01 ./test_maps', and knew 10S is likely enough, but i still perfer to a larger value 30. Reported-by: kernel test robot <lkp(a)intel.com> Signed-off-by: Li Zhijian <lizhijian(a)cn.fujitsu.com> --- V2: update to 30 seconds 3S is not enough sometimes on a very busy host taskset 1,1 ./test_maps 9 Fork 1024 tasks to 'test_update_delete' Fork 1024 tasks to 'test_update_delete' Fork 100 tasks to 'test_hashmap' Fork 100 tasks to 'test_hashmap_percpu' Fork 100 tasks to 'test_hashmap_sizes' Fork 100 tasks to 'test_hashmap_walk' Fork 100 tasks to 'test_arraymap' Fork 100 tasks to 'test_arraymap_percpu' Failed sockmap unexpected timeout taskset 1,1 ./test_maps 10 Fork 1024 tasks to 'test_update_delete' Fork 1024 tasks to 'test_update_delete' Fork 100 tasks to 'test_hashmap' Fork 100 tasks to 'test_hashmap_percpu' Fork 100 tasks to 'test_hashmap_sizes' Fork 100 tasks to 'test_hashmap_walk' Fork 100 tasks to 'test_arraymap' Fork 100 tasks to 'test_arraymap_percpu' Fork 1024 tasks to 'test_update_delete' Fork 1024 tasks to 'test_update_delete' Fork 100 tasks to 'test_hashmap' Fork 100 tasks to 'test_hashmap_percpu' Fork 100 tasks to 'test_hashmap_sizes' Fork 100 tasks to 'test_hashmap_walk' Fork 100 tasks to 'test_arraymap' Fork 100 tasks to 'test_arraymap_percpu' test_array_map_batch_ops:PASS test_array_percpu_map_batch_ops:PASS test_htab_map_batch_ops:PASS test_htab_percpu_map_batch_ops:PASS test_lpm_trie_map_batch_ops:PASS test_sk_storage_map:PASS test_maps: OK, 0 SKIPPED taskset 0x01 ./test_maps 9 Fork 1024 tasks to 'test_update_delete' Fork 1024 tasks to 'test_update_delete' Fork 100 tasks to 'test_hashmap' Fork 100 tasks to 'test_hashmap_percpu' Fork 100 tasks to 'test_hashmap_sizes' Fork 100 tasks to 'test_hashmap_walk' Fork 100 tasks to 'test_arraymap' Fork 100 tasks to 'test_arraymap_percpu' Fork 1024 tasks to 'test_update_delete' Fork 1024 tasks to 'test_update_delete' Fork 100 tasks to 'test_hashmap' Fork 100 tasks to 'test_hashmap_percpu' Fork 100 tasks to 'test_hashmap_sizes' Fork 100 tasks to 'test_hashmap_walk' Fork 100 tasks to 'test_arraymap' Fork 100 tasks to 'test_arraymap_percpu' test_array_map_batch_ops:PASS test_array_percpu_map_batch_ops:PASS test_htab_map_batch_ops:PASS test_htab_percpu_map_batch_ops:PASS test_lpm_trie_map_batch_ops:PASS test_sk_storage_map:PASS test_maps: OK, 0 SKIPPED taskset 0x01 ./test_maps 10 Fork 1024 tasks to 'test_update_delete' Fork 1024 tasks to 'test_update_delete' Fork 100 tasks to 'test_hashmap' Fork 100 tasks to 'test_hashmap_percpu' Fork 100 tasks to 'test_hashmap_sizes' Fork 100 tasks to 'test_hashmap_walk' Fork 100 tasks to 'test_arraymap' Fork 100 tasks to 'test_arraymap_percpu' Fork 1024 tasks to 'test_update_delete' Fork 1024 tasks to 'test_update_delete' Fork 100 tasks to 'test_hashmap' Fork 100 tasks to 'test_hashmap_percpu' Fork 100 tasks to 'test_hashmap_sizes' Fork 100 tasks to 'test_hashmap_walk' Fork 100 tasks to 'test_arraymap' Fork 100 tasks to 'test_arraymap_percpu' test_array_map_batch_ops:PASS test_array_percpu_map_batch_ops:PASS test_htab_map_batch_ops:PASS test_htab_percpu_map_batch_ops:PASS test_lpm_trie_map_batch_ops:PASS test_sk_storage_map:PASS test_maps: OK, 0 SKIPPED Signed-off-by: Li Zhijian <lizhijian(a)cn.fujitsu.com> --- tools/testing/selftests/bpf/test_maps.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/bpf/test_maps.c b/tools/testing/selftests/bpf/test_maps.c index 30cbf5d98f7d..de58a3070eea 100644 --- a/tools/testing/selftests/bpf/test_maps.c +++ b/tools/testing/selftests/bpf/test_maps.c @@ -985,7 +985,7 @@ static void test_sockmap(unsigned int tasks, void *data) FD_ZERO(&w); FD_SET(sfd[3], &w); - to.tv_sec = 1; + to.tv_sec = 30; to.tv_usec = 0; s = select(sfd[3] + 1, &w, NULL, NULL, &to); if (s == -1) { -- 2.32.0

4 years, 2 months

2
1
0 0

[PATCH] kunit: tool: allow filtering test cases via glob

by Daniel Latypov

Commit 1d71307a6f94 ("kunit: add unit test for filtering suites by names") introduced the ability to filter which suites we run via glob. This change extends it so we can also filter individual test cases inside of suites as well. This is quite useful when, e.g. * trying to run just the tests cases you've just added or are working on * trying to debug issues with test hermeticity Examples: $ ./tools/testing/kunit/kunit.py run --kunitconfig=lib/kunit '*exec*.parse*' ... ============================================================ ======== [PASSED] kunit_executor_test ======== [PASSED] parse_filter_test ============================================================ Testing complete. 1 tests run. 0 failed. 0 crashed. $ ./tools/testing/kunit/kunit.py run --kunitconfig=lib/kunit '*.no_matching_tests' ... [ERROR] no tests run! Signed-off-by: Daniel Latypov <dlatypov(a)google.com> --- lib/kunit/executor.c | 107 +++++++++++++++++++++++++++++++++---- lib/kunit/executor_test.c | 109 +++++++++++++++++++++++++++++++++----- 2 files changed, 192 insertions(+), 24 deletions(-) diff --git a/lib/kunit/executor.c b/lib/kunit/executor.c index acd1de436f59..bab3ab940acc 100644 --- a/lib/kunit/executor.c +++ b/lib/kunit/executor.c @@ -17,21 +17,80 @@ extern struct kunit_suite * const * const __kunit_suites_end[]; static char *filter_glob_param; module_param_named(filter_glob, filter_glob_param, charp, 0); MODULE_PARM_DESC(filter_glob, - "Filter which KUnit test suites run at boot-time, e.g. list*"); + "Filter which KUnit test suites/tests run at boot-time, e.g. list* or list*.*del_test"); + +/* glob_match() needs NULL terminated strings, so we need a copy of filter_glob_param. */ +struct kunit_test_filter { + char *suite_glob; + char *test_glob; +}; + +/* Split "suite_glob.test_glob" into two. Assumes filter_glob is not empty. */ +static void kunit_parse_filter_glob(struct kunit_test_filter *parsed, + const char *filter_glob) +{ + const int len = strlen(filter_glob); + const char *period = strchr(filter_glob, '.'); + + if (!period) { + parsed->suite_glob = kmalloc(len, GFP_KERNEL); + parsed->test_glob = NULL; + strcpy(parsed->suite_glob, filter_glob); + return; + } + + parsed->suite_glob = kzalloc(period - filter_glob + 1, GFP_KERNEL); + parsed->test_glob = kzalloc(len - (period - filter_glob) + 1, GFP_KERNEL); + + strncpy(parsed->suite_glob, filter_glob, period - filter_glob); + strncpy(parsed->test_glob, period + 1, len - (period - filter_glob)); +} + +/* Create a copy of suite with only tests that match test_glob. */ +static struct kunit_suite * +kunit_filter_tests(struct kunit_suite *const suite, const char *test_glob) +{ + int n = 0; + struct kunit_case *filtered, *test_case; + struct kunit_suite *copy; + + kunit_suite_for_each_test_case(suite, test_case) { + if (!test_glob || glob_match(test_glob, test_case->name)) + ++n; + } + + if (n == 0) + return NULL; + + /* Use memcpy to workaround copy->name being const. */ + copy = kmalloc(sizeof(*copy), GFP_KERNEL); + memcpy(copy, suite, sizeof(*copy)); + + filtered = kcalloc(n + 1, sizeof(*filtered), GFP_KERNEL); + + n = 0; + kunit_suite_for_each_test_case(suite, test_case) { + if (!test_glob || glob_match(test_glob, test_case->name)) + filtered[n++] = *test_case; + } + + copy->test_cases = filtered; + return copy; +} static char *kunit_shutdown; core_param(kunit_shutdown, kunit_shutdown, charp, 0644); static struct kunit_suite * const * kunit_filter_subsuite(struct kunit_suite * const * const subsuite, - const char *filter_glob) + struct kunit_test_filter *filter) { int i, n = 0; - struct kunit_suite **filtered; + struct kunit_suite **filtered, *filtered_suite; n = 0; - for (i = 0; subsuite[i] != NULL; ++i) { - if (glob_match(filter_glob, subsuite[i]->name)) + for (i = 0; subsuite[i]; ++i) { + if (glob_match(filter->suite_glob, subsuite[i]->name)) ++n; } @@ -44,8 +103,11 @@ kunit_filter_subsuite(struct kunit_suite * const * const subsuite, n = 0; for (i = 0; subsuite[i] != NULL; ++i) { - if (glob_match(filter_glob, subsuite[i]->name)) - filtered[n++] = subsuite[i]; + if (!glob_match(filter->suite_glob, subsuite[i]->name)) + continue; + filtered_suite = kunit_filter_tests(subsuite[i], filter->test_glob); + if (filtered_suite) + filtered[n++] = filtered_suite; } filtered[n] = NULL; @@ -57,12 +119,32 @@ struct suite_set { struct kunit_suite * const * const *end; }; +static void kunit_free_subsuite(struct kunit_suite * const *subsuite) +{ + unsigned int i; + + for (i = 0; subsuite[i]; i++) + kfree(subsuite[i]); + + kfree(subsuite); +} + +static void kunit_free_suite_set(struct suite_set suite_set) +{ + struct kunit_suite * const * const *suites; + + for (suites = suite_set.start; suites < suite_set.end; suites++) + kunit_free_subsuite(*suites); + kfree(suite_set.start); +} + static struct suite_set kunit_filter_suites(const struct suite_set *suite_set, const char *filter_glob) { int i; struct kunit_suite * const **copy, * const *filtered_subsuite; struct suite_set filtered; + struct kunit_test_filter filter; const size_t max = suite_set->end - suite_set->start; @@ -73,12 +155,17 @@ static struct suite_set kunit_filter_suites(const struct suite_set *suite_set, return filtered; } + kunit_parse_filter_glob(&filter, filter_glob); + for (i = 0; i < max; ++i) { - filtered_subsuite = kunit_filter_subsuite(suite_set->start[i], filter_glob); + filtered_subsuite = kunit_filter_subsuite(suite_set->start[i], &filter); if (filtered_subsuite) *copy++ = filtered_subsuite; } filtered.end = copy; + + kfree(filter.suite_glob); + kfree(filter.test_glob); return filtered; } @@ -126,9 +213,7 @@ int kunit_run_all_tests(void) __kunit_test_suites_init(*suites); if (filter_glob_param) { /* a copy was made of each array */ - for (suites = suite_set.start; suites < suite_set.end; suites++) - kfree(*suites); - kfree(suite_set.start); + kunit_free_suite_set(suite_set); } kunit_handle_shutdown(); diff --git a/lib/kunit/executor_test.c b/lib/kunit/executor_test.c index cdbe54b16501..dbb49c099e02 100644 --- a/lib/kunit/executor_test.c +++ b/lib/kunit/executor_test.c @@ -9,38 +9,103 @@ #include <kunit/test.h> static void kfree_at_end(struct kunit *test, const void *to_free); +static void free_subsuite_at_end(struct kunit *test, + struct kunit_suite *const *to_free); static struct kunit_suite *alloc_fake_suite(struct kunit *test, - const char *suite_name); + const char *suite_name, + struct kunit_case *test_cases); + +void dummy_test(struct kunit *test) {} + +struct kunit_case dummy_test_cases[] = { + /* .run_case is not important, just needs to be non-NULL */ + { .name = "test1", .run_case = dummy_test }, + { .name = "test2", .run_case = dummy_test }, + {}, +}; + +static void parse_filter_test(struct kunit *test) +{ + struct kunit_test_filter filter = {NULL, NULL}; + + kunit_parse_filter_glob(&filter, "suite"); + KUNIT_EXPECT_STREQ(test, filter.suite_glob, "suite"); + KUNIT_EXPECT_FALSE(test, filter.test_glob); + kfree(filter.suite_glob); + kfree(filter.test_glob); + + kunit_parse_filter_glob(&filter, "suite.test"); + KUNIT_EXPECT_STREQ(test, filter.suite_glob, "suite"); + KUNIT_EXPECT_STREQ(test, filter.test_glob, "test"); + kfree(filter.suite_glob); + kfree(filter.test_glob); +} static void filter_subsuite_test(struct kunit *test) { struct kunit_suite *subsuite[3] = {NULL, NULL, NULL}; struct kunit_suite * const *filtered; + struct kunit_test_filter filter = { + .suite_glob = "suite2", + .test_glob = NULL, + }; - subsuite[0] = alloc_fake_suite(test, "suite1"); - subsuite[1] = alloc_fake_suite(test, "suite2"); + subsuite[0] = alloc_fake_suite(test, "suite1", dummy_test_cases); + subsuite[1] = alloc_fake_suite(test, "suite2", dummy_test_cases); /* Want: suite1, suite2, NULL -> suite2, NULL */ - filtered = kunit_filter_subsuite(subsuite, "suite2*"); + filtered = kunit_filter_subsuite(subsuite, &filter); KUNIT_ASSERT_NOT_ERR_OR_NULL(test, filtered); - kfree_at_end(test, filtered); + free_subsuite_at_end(test, filtered); + /* Validate we just have suite2 */ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, filtered[0]); KUNIT_EXPECT_STREQ(test, (const char *)filtered[0]->name, "suite2"); + KUNIT_EXPECT_FALSE(test, filtered[1]); +} + +static void filter_subsuite_test_glob_test(struct kunit *test) +{ + struct kunit_suite *subsuite[3] = {NULL, NULL, NULL}; + struct kunit_suite * const *filtered; + struct kunit_test_filter filter = { + .suite_glob = "suite2", + .test_glob = "test2", + }; + + subsuite[0] = alloc_fake_suite(test, "suite1", dummy_test_cases); + subsuite[1] = alloc_fake_suite(test, "suite2", dummy_test_cases); + /* Want: suite1, suite2, NULL -> suite2 (just test1), NULL */ + filtered = kunit_filter_subsuite(subsuite, &filter); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, filtered); + free_subsuite_at_end(test, filtered); + + /* Validate we just have suite2 */ + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, filtered[0]); + KUNIT_EXPECT_STREQ(test, (const char *)filtered[0]->name, "suite2"); KUNIT_EXPECT_FALSE(test, filtered[1]); + + /* Now validate we just have test2 */ + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, filtered[0]->test_cases); + KUNIT_EXPECT_STREQ(test, (const char *)filtered[0]->test_cases[0].name, "test2"); + KUNIT_EXPECT_FALSE(test, filtered[0]->test_cases[1].name); } static void filter_subsuite_to_empty_test(struct kunit *test) { struct kunit_suite *subsuite[3] = {NULL, NULL, NULL}; struct kunit_suite * const *filtered; + struct kunit_test_filter filter = { + .suite_glob = "not_found", + .test_glob = NULL, + }; - subsuite[0] = alloc_fake_suite(test, "suite1"); - subsuite[1] = alloc_fake_suite(test, "suite2"); + subsuite[0] = alloc_fake_suite(test, "suite1", dummy_test_cases); + subsuite[1] = alloc_fake_suite(test, "suite2", dummy_test_cases); - filtered = kunit_filter_subsuite(subsuite, "not_found"); - kfree_at_end(test, filtered); /* just in case */ + filtered = kunit_filter_subsuite(subsuite, &filter); + free_subsuite_at_end(test, filtered); /* just in case */ KUNIT_EXPECT_FALSE_MSG(test, filtered, "should be NULL to indicate no match"); @@ -52,7 +117,7 @@ static void kfree_subsuites_at_end(struct kunit *test, struct suite_set *suite_s kfree_at_end(test, suite_set->start); for (suites = suite_set->start; suites < suite_set->end; suites++) - kfree_at_end(test, *suites); + free_subsuite_at_end(test, *suites); } static void filter_suites_test(struct kunit *test) @@ -74,8 +139,8 @@ static void filter_suites_test(struct kunit *test) struct suite_set filtered = {.start = NULL, .end = NULL}; /* Emulate two files, each having one suite */ - subsuites[0][0] = alloc_fake_suite(test, "suite0"); - subsuites[1][0] = alloc_fake_suite(test, "suite1"); + subsuites[0][0] = alloc_fake_suite(test, "suite0", dummy_test_cases); + subsuites[1][0] = alloc_fake_suite(test, "suite1", dummy_test_cases); /* Filter out suite1 */ filtered = kunit_filter_suites(&suite_set, "suite0"); @@ -88,7 +153,9 @@ static void filter_suites_test(struct kunit *test) } static struct kunit_case executor_test_cases[] = { + KUNIT_CASE(parse_filter_test), KUNIT_CASE(filter_subsuite_test), + KUNIT_CASE(filter_subsuite_test_glob_test), KUNIT_CASE(filter_subsuite_to_empty_test), KUNIT_CASE(filter_suites_test), {} @@ -120,14 +187,30 @@ static void kfree_at_end(struct kunit *test, const void *to_free) (void *)to_free); } +static void free_subsuite_res_free(struct kunit_resource *res) +{ + kunit_free_subsuite(res->data); +} + +static void free_subsuite_at_end(struct kunit *test, + struct kunit_suite *const *to_free) +{ + if (IS_ERR_OR_NULL(to_free)) + return; + kunit_alloc_and_get_resource(test, NULL, free_subsuite_res_free, + GFP_KERNEL, (void *)to_free); +} + static struct kunit_suite *alloc_fake_suite(struct kunit *test, - const char *suite_name) + const char *suite_name, + struct kunit_case *test_cases) { struct kunit_suite *suite; /* We normally never expect to allocate suites, hence the non-const cast. */ suite = kunit_kzalloc(test, sizeof(*suite), GFP_KERNEL); strncpy((char *)suite->name, suite_name, sizeof(suite->name) - 1); + suite->test_cases = test_cases; return suite; } base-commit: 36a21d51725af2ce0700c6ebcb6b9594aac658a6 -- 2.32.0.605.g8dce9f2422-goog

4 years, 2 months

1
2
0 0

[PATCH 0/4] LKDTM: Various CI improvements

by Kees Cook

Hi Greg, Can you please pull these LKDTM changes for drivers/misc? I forgot to flush this queue of enhancements earlier. :) Here's what I've got built up, mostly tweaks for kernelCI, configs, consolidation. This also includes the __alloc_size hint adjustment I'd sent earlier, now fixed with a better comment. Thanks! -Kees Kees Cook (4): lkdtm/bugs: Add ARRAY_BOUNDS to selftests lkdtm/fortify: Consolidate FORTIFY_SOURCE tests lkdtm: Add kernel version to failure hints lkdtm/heap: Avoid __alloc_size hint warning for VMALLOC_LINEAR_OVERFLOW drivers/misc/lkdtm/bugs.c | 51 +----------------------- drivers/misc/lkdtm/core.c | 4 +- drivers/misc/lkdtm/fortify.c | 53 +++++++++++++++++++++++++ drivers/misc/lkdtm/heap.c | 9 ++++- drivers/misc/lkdtm/lkdtm.h | 24 ++++++----- tools/testing/selftests/lkdtm/config | 2 + tools/testing/selftests/lkdtm/tests.txt | 3 ++ 7 files changed, 83 insertions(+), 63 deletions(-) -- 2.30.2

4 years, 2 months

1
4
0 0

[PATCH v5 00/11] Add futex2 syscalls

by André Almeida

This patchset is an implementation of futex2 interface on top of existing futex.c code. * What happened to the current futex()? The futex() is implemented using a multiplexed interface that doesn't scale well and gives headaches to people. We don't want to add more features there. * New features at futex2() ** NUMA-awareness At the current implementation, all futex kernel side infrastructure is stored on a single node. Given that, all futex() calls issued by processors that aren't located on that node will have a memory access penalty when doing it. ** Variable sized futexes Futexes are used to implement atomic operations in userspace. Supporting 8, 16, 32 and 64 bit sized futexes allows user libraries to implement all those sizes in a performant way. Thanks Boost devs for feedback: https://lists.boost.org/Archives/boost/2021/05/251508.php Embedded systems or anything with memory constrains could benefit of using smaller sizes for the futex userspace integer. ** Wait on multiple futexes Proton's (a set of compatibility tools to run Windows games) fork of Wine benefits of this feature to implement WaitForMultipleObjects from Win32 in a performant way. Native game engines will benefit from this as well, given that this is a common wait pattern for games. * The interface The new interface has one syscall per operation as opposed to the current multiplexing one. The details can be found in the following patches, but this is a high level summary of what the interface can do: - Supports wake/wait semantics, as in futex() - Supports requeue operations, similarly as FUTEX_CMP_REQUEUE, but with individual flags for each address - Supports waiting for a vector of futexes, using a new syscall named futex_waitv() - The following features will be implemented in next patchset versions: - Supports variable sized futexes (8bits, 16bits, 32bits and 64bits) - Supports NUMA-awareness operations, where the user can specify on which memory node would like to operate * The patchset Given that futex2 reuses futex code, the patches make futex.c functions public and modify them as needed. This patchset can be also found at my git tree: https://gitlab.collabora.com/tonyk/linux/-/tree/futex2-dev - Patch 1: Implements 32bit wait/wake - Patches 2-3: Implement waitv and requeue. - Patch 4: Add a documentation file which details the interface and the internal implementation. - Patches 5-10: Selftests for all operations along with perf support for futex2. - Patch 11: Proof of concept of waking threads at waitpid(), not to be merged as it is. * Testing ** Stability - glibc[1]: nptl's low level locking was modified to use futex2 API (except for PI). All nptl/ tests passed. - Proton's Wine: Proton/Wine was modified in order to use futex2() for the emulation of Windows NT sync mechanisms based on futex, called "fsync". Triple-A games with huge CPU's loads and tons of parallel jobs worked as expected when compared with the previous FUTEX_WAIT_MULTIPLE implementation at futex(). Some games issue 42k futex2() calls per second. - perf: The perf benchmarks tests can also be used to stress the interface, and they can be found in this patchset. [1] https://gitlab.collabora.com/tonyk/glibc/-/tree/futex2-dev ** Performance - Using perf, no significant difference was measured when comparing futex() and futex2() for the following benchmarks: hash, wake and wake-parallel. - I measured a 15% overhead for the perf's requeue benchmark, comparing futex2() to futex(). Requeue patch provides more details about why this happens and how to overcome this. * Changelog Changes from v4: - Use existing futex.c code when possible - Cleaned up cover letter, check v4 for a more verbose version v4: https://lore.kernel.org/lkml/20210603195924.361327-1-andrealmeid@collabora.… André Almeida (11): futex2: Implement wait and wake functions futex2: Implement vectorized wait futex2: Implement requeue operation docs: locking: futex2: Add documentation selftests: futex2: Add wake/wait test selftests: futex2: Add timeout test selftests: futex2: Add wouldblock test selftests: futex2: Add waitv test selftests: futex2: Add requeue test perf bench: Add futex2 benchmark tests kernel: Enable waitpid() for futex2 Documentation/locking/futex2.rst | 185 ++++++ Documentation/locking/index.rst | 1 + arch/x86/entry/syscalls/syscall_32.tbl | 4 + arch/x86/entry/syscalls/syscall_64.tbl | 4 + include/linux/compat.h | 23 + include/linux/futex.h | 103 ++++ include/linux/syscalls.h | 8 + include/uapi/asm-generic/unistd.h | 11 +- include/uapi/linux/futex.h | 27 + init/Kconfig | 7 + kernel/Makefile | 1 + kernel/fork.c | 2 + kernel/futex.c | 111 +--- kernel/futex2.c | 566 ++++++++++++++++++ kernel/sys_ni.c | 9 + tools/arch/x86/include/asm/unistd_64.h | 12 + tools/perf/bench/bench.h | 4 + tools/perf/bench/futex-hash.c | 24 +- tools/perf/bench/futex-requeue.c | 57 +- tools/perf/bench/futex-wake-parallel.c | 41 +- tools/perf/bench/futex-wake.c | 37 +- tools/perf/bench/futex.h | 47 ++ tools/perf/builtin-bench.c | 18 +- .../selftests/futex/functional/.gitignore | 3 + .../selftests/futex/functional/Makefile | 6 +- .../futex/functional/futex2_requeue.c | 164 +++++ .../selftests/futex/functional/futex2_wait.c | 195 ++++++ .../selftests/futex/functional/futex2_waitv.c | 154 +++++ .../futex/functional/futex_wait_timeout.c | 24 +- .../futex/functional/futex_wait_wouldblock.c | 33 +- .../testing/selftests/futex/functional/run.sh | 6 + .../selftests/futex/include/futex2test.h | 112 ++++ 32 files changed, 1865 insertions(+), 134 deletions(-) create mode 100644 Documentation/locking/futex2.rst create mode 100644 kernel/futex2.c create mode 100644 tools/testing/selftests/futex/functional/futex2_requeue.c create mode 100644 tools/testing/selftests/futex/functional/futex2_wait.c create mode 100644 tools/testing/selftests/futex/functional/futex2_waitv.c create mode 100644 tools/testing/selftests/futex/include/futex2test.h -- 2.32.0

4 years, 2 months

3
15
0 0

[PATCH] selftests/bpf: enlarge timeout to 3 seconds for test_maps

by Li Zhijian

0Day robot observed that it's easily timeout on a heavy load host. ------------------- # selftests: bpf: test_maps # Fork 1024 tasks to 'test_update_delete' # Fork 1024 tasks to 'test_update_delete' # Fork 100 tasks to 'test_hashmap' # Fork 100 tasks to 'test_hashmap_percpu' # Fork 100 tasks to 'test_hashmap_sizes' # Fork 100 tasks to 'test_hashmap_walk' # Fork 100 tasks to 'test_arraymap' # Fork 100 tasks to 'test_arraymap_percpu' # Failed sockmap unexpected timeout not ok 3 selftests: bpf: test_maps # exit=1 # selftests: bpf: test_lru_map # nr_cpus:8 ------------------- Since this test will be scheduled by 0Day to a random host that could have only a few cpus(2-8), enlarge the timeout to avoid a false NG report. Reported-by: kernel test robot <lkp(a)intel.com> Signed-off-by: Li Zhijian <lizhijian(a)cn.fujitsu.com> --- tools/testing/selftests/bpf/test_maps.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/bpf/test_maps.c b/tools/testing/selftests/bpf/test_maps.c index 30cbf5d98f7d..72673e0428fd 100644 --- a/tools/testing/selftests/bpf/test_maps.c +++ b/tools/testing/selftests/bpf/test_maps.c @@ -985,7 +985,7 @@ static void test_sockmap(unsigned int tasks, void *data) FD_ZERO(&w); FD_SET(sfd[3], &w); - to.tv_sec = 1; + to.tv_sec = 3; to.tv_usec = 0; s = select(sfd[3] + 1, &w, NULL, NULL, &to); if (s == -1) { -- 2.32.0

4 years, 2 months

2
1
0 0

[PATCH v2 net-next 0/8] Update the virtual NCI device driver and add the NCI testcase

by bongsu.jeon2＠gmail.com

From: Bongsu Jeon <bongsu.jeon(a)samsung.com> This series updates the virtual NCI device driver and NCI selftest code and add the NCI test case in selftests. 1/8 to use wait queue in virtual device driver. 2/8 to remove the polling code in selftests. 3/8 to fix a typo. 4/8 to fix the next nlattr offset calculation. 5/8 to fix the wrong condition in if statement. 6/8 to add a flag parameter to the Netlink send function. 7/8 to extract the start/stop discovery function. 8/8 to add the NCI testcase in selftests. v2: 1/8 - change the commit message. - add the dfense code while reading a frame. 3/8 - change the commit message. - separate the commit into 3/8~8/8. Bongsu Jeon (8): nfc: virtual_ncidev: Use wait queue instead of polling selftests: nci: Remove the polling code to read a NCI frame selftests: nci: Fix the typo selftests: nci: Fix the code for next nlattr offset selftests: nci: Fix the wrong condition selftests: nci: Add the flags parameter for the send_cmd_mt_nla selftests: nci: Extract the start/stop discovery function selftests: nci: Add the NCI testcase reading T4T Tag drivers/nfc/virtual_ncidev.c | 9 +- tools/testing/selftests/nci/nci_dev.c | 416 ++++++++++++++++++++++---- 2 files changed, 362 insertions(+), 63 deletions(-) -- 2.32.0

4 years, 2 months

2
9
0 0

[PATCH v4 0/8] Add an oversubscription test

by Jarkko Sakkinen

The goal of these patches is to add a test case for a SGX reserved memory oversubscription, i.e. make sure that the page reclaimer and and the page fault handler are working correctly. Change Log ========== v3: * Reorganized the patch set into smaller pieces, and refactored the code so that the test enclave can be created inside each test case. Added a new test case unclobbered_vdso_oversubscribed that creates a large enough heap to fill all of the available SGX reserved memory (EPC). Jarkko Sakkinen (8): x86/sgx: Add /sys/kernel/debug/x86/sgx_total_mem selftests/sgx: Assign source for each segment selftests/sgx: Make data measurement for an enclave segment optional selftests/sgx: Create a heap for the test enclave selftests/sgx: Dump segments and /proc/self/maps only on failure selftests/sgx: Encpsulate the test enclave creation selftests/sgx: Move setup_test_encl() to each TEST_F() selftests/sgx: Add a new kselftest: unclobbered_vdso_oversubscribed Documentation/x86/sgx.rst | 6 ++ arch/x86/kernel/cpu/sgx/main.c | 10 +- tools/testing/selftests/sgx/load.c | 40 ++++++-- tools/testing/selftests/sgx/main.c | 123 +++++++++++++++++++----- tools/testing/selftests/sgx/main.h | 7 +- tools/testing/selftests/sgx/sigstruct.c | 12 ++- 6 files changed, 159 insertions(+), 39 deletions(-) -- 2.32.0

4 years, 2 months

2
11
0 0

[PATCH] selftests: Use -fno-integrated-as instead of -no-integrated-as

by Nathan Chancellor

-no-integrated-as is considered the legacy flag since clang 3.5 so move -fno-integrated-as in case clang ever decides to remove the legacy flag. Link: https://releases.llvm.org/3.5.0/tools/clang/docs/ReleaseNotes.html#new-comp… Signed-off-by: Nathan Chancellor <nathan(a)kernel.org> --- tools/testing/selftests/rseq/Makefile | 2 +- tools/testing/selftests/sched/Makefile | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/rseq/Makefile b/tools/testing/selftests/rseq/Makefile index 2af9d39a9716..32f503c13c61 100644 --- a/tools/testing/selftests/rseq/Makefile +++ b/tools/testing/selftests/rseq/Makefile @@ -1,7 +1,7 @@ # SPDX-License-Identifier: GPL-2.0+ OR MIT ifneq ($(shell $(CC) --version 2>&1 | head -n 1 | grep clang),) -CLANG_FLAGS += -no-integrated-as +CLANG_FLAGS += -fno-integrated-as endif CFLAGS += -O2 -Wall -g -I./ -I../../../../usr/include/ -L$(OUTPUT) -Wl,-rpath=./ \ diff --git a/tools/testing/selftests/sched/Makefile b/tools/testing/selftests/sched/Makefile index 10c72f14fea9..d84a19363a62 100644 --- a/tools/testing/selftests/sched/Makefile +++ b/tools/testing/selftests/sched/Makefile @@ -1,7 +1,7 @@ # SPDX-License-Identifier: GPL-2.0+ ifneq ($(shell $(CC) --version 2>&1 | head -n 1 | grep clang),) -CLANG_FLAGS += -no-integrated-as +CLANG_FLAGS += -fno-integrated-as endif CFLAGS += -O2 -Wall -g -I./ -I../../../../usr/include/ -Wl,-rpath=./ \ base-commit: 7c60610d476766e128cc4284bb6349732cbd6606 -- 2.33.0.rc2

4 years, 2 months

2
1
0 0

[PATCH v2 0/2] add KSM performance tests

by Zhansaya Bagdauletkyzy

Extend KSM self tests with a performance benchmark. These tests are not part of regular regression testing, as they are mainly intended to be used by developers making changes to the memory management subsystem. This patchset is a respin of the previous series: https://lore.kernel.org/lkml/cover.1627828548.git.zhansayabagdaulet@gmail.c… Zhansaya Bagdauletkyzy (2): selftests: vm: add KSM merging time test selftests: vm: add COW time test for KSM pages v1 -> v2: - replace MB with MiB - address COW test review comments tools/testing/selftests/vm/ksm_tests.c | 152 ++++++++++++++++++++++++- 1 file changed, 148 insertions(+), 4 deletions(-) -- 2.25.1

4 years, 2 months

2
4
0 0

[PATCH v2 0/4] add KSM selftests

by Zhansaya Bagdauletkyzy

Introduce selftests to validate the functionality of KSM. The tests are run on private anonymous pages. Since some KSM tunables are modified, their starting values are saved and restored after testing. At the start, run is set to 2 to ensure that only test pages will be merged (we assume that no applications make madvise syscalls in the background). If KSM config not enabled, all tests will be skipped. Zhansaya Bagdauletkyzy (4): selftests: vm: add KSM merge test selftests: vm: add KSM unmerge test selftests: vm: add KSM zero page merging test selftests: vm: add KSM merging across nodes test v1 -> v2: - add a test to check KSM unmerging - add a test to check merging of zero pages - add a test to check merging in different NUMA nodes - include command line options for each test - new options to specify use_zero_pages and merge_across_nodes - run each test case in run_vmtests.sh - add some helper functions to make the code more compact: allocate_memory(), ksm_do_scan(), ksm_merge_pages() tools/testing/selftests/vm/.gitignore | 1 + tools/testing/selftests/vm/Makefile | 3 + tools/testing/selftests/vm/ksm_tests.c | 516 ++++++++++++++++++++++ tools/testing/selftests/vm/run_vmtests.sh | 96 ++++ 4 files changed, 616 insertions(+) create mode 100644 tools/testing/selftests/vm/ksm_tests.c -- 2.25.1

4 years, 2 months

4
13
0 0

[PATCH net-next 0/3] Update the virtual NCI driver and the NCI selftests

by bongsu.jeon2＠gmail.com

From: Bongsu Jeon <bongsu.jeon(a)samsung.com> This series updates the virtual NCI device driver and NCI selftest code and add the NCI test case in selftests. 1/3 is the patch to use wait queue in virtual device driver. 2/3 is the patch to remove the polling code in selftests. 3/3 is the patch to add the NCI testcase in selftests. Bongsu Jeon (3): nfc: Change the virtual NCI device driver to use Wait Queue selftests: Remove the polling code to read a NCI frame selftests: Add the NCI testcase reading T4T Tag drivers/nfc/virtual_ncidev.c | 10 +- tools/testing/selftests/nci/nci_dev.c | 417 ++++++++++++++++++++++---- 2 files changed, 362 insertions(+), 65 deletions(-) -- 2.32.0

4 years, 2 months

2
6
0 0

[PATCH -next 1/2] selftests: Fix vm_handle_exception undefined error

by Chen Lifu

Compile setftests on x86_64 occurs following error: make -C tools/testing/selftests ... x86_64/hyperv_features.c:618:2: warning: implicit declaration of function ‘vm_handle_exception’ [-Wimplicit-function-declaration] 618 | vm_handle_exception(vm, GP_VECTOR, guest_gp_handler); /usr/bin/ld: /tmp/cclOnpml.o: in function `main': tools/testing/selftests/kvm/x86_64/hyperv_features.c:618: undefined reference to `vm_handle_exception' collect2: error: ld returned 1 exit status The reason is that commit b78f4a596692 ("KVM: selftests: Rename vm_handle_exception") renamed "vm_handle_exception" function to "vm_install_exception_handler" function. Fix it by replacing "vm_handle_exception" with "vm_install_exception_handler" in corresponding selftests files. Signed-off-by: Chen Lifu <chenlifu(a)huawei.com> --- tools/testing/selftests/kvm/x86_64/hyperv_features.c | 2 +- tools/testing/selftests/kvm/x86_64/mmu_role_test.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/kvm/x86_64/hyperv_features.c b/tools/testing/selftests/kvm/x86_64/hyperv_features.c index 42bd658f52a8..af27c7e829c1 100644 --- a/tools/testing/selftests/kvm/x86_64/hyperv_features.c +++ b/tools/testing/selftests/kvm/x86_64/hyperv_features.c @@ -615,7 +615,7 @@ int main(void) vm_init_descriptor_tables(vm); vcpu_init_descriptor_tables(vm, VCPU_ID); - vm_handle_exception(vm, GP_VECTOR, guest_gp_handler); + vm_install_exception_handler(vm, GP_VECTOR, guest_gp_handler); pr_info("Testing access to Hyper-V specific MSRs\n"); guest_test_msrs_access(vm, addr_gva2hva(vm, msr_gva), diff --git a/tools/testing/selftests/kvm/x86_64/mmu_role_test.c b/tools/testing/selftests/kvm/x86_64/mmu_role_test.c index 523371cf8e8f..da2325fcad87 100644 --- a/tools/testing/selftests/kvm/x86_64/mmu_role_test.c +++ b/tools/testing/selftests/kvm/x86_64/mmu_role_test.c @@ -71,7 +71,7 @@ static void mmu_role_test(u32 *cpuid_reg, u32 evil_cpuid_val) /* Set up a #PF handler to eat the RSVD #PF and signal all done! */ vm_init_descriptor_tables(vm); vcpu_init_descriptor_tables(vm, VCPU_ID); - vm_handle_exception(vm, PF_VECTOR, guest_pf_handler); + vm_install_exception_handler(vm, PF_VECTOR, guest_pf_handler); r = _vcpu_run(vm, VCPU_ID); TEST_ASSERT(r == 0, "vcpu_run failed: %d\n", r); -- 2.32.0

4 years, 2 months

4
5
0 0

[PATCH-cgroup v5 0/6] cgroup/cpuset: Add new cpuset partition type & empty effecitve cpus

by Waiman Long

v5: - Rebased to the latest for-5.15 branch of cgroup git tree and drop the 1st v4 patch as it has been merged. - Update patch 1 to always allow changing partition root back to member even if it invalidates child partitions undeneath it. - Adjust the empty effective cpu partition patch to not allow 0 effective cpu for terminal partition which will make it invalid). - Add a new patch to enable reading of cpuset.cpus.partition to display the reason that causes invalid partition. - Adjust the documentation and testing patch accordingly. v4: - Rebased to the for-5.15 branch of cgroup git tree and dropped the first 3 patches of v3 series which have been merged. - Beside prohibiting violation of cpu exclusivity rule, allow arbitrary changes to cpuset.cpus of a partition root and force the partition root to become invalid in case any of the partition root constraints are violated. The documentation file and self test are modified accordingly. This patchset makes four enhancements to the cpuset v2 code. Patch 1: Properly handle partition root tree and make partition invalid in case changes to cpuset.cpus violate any of the partition root constraints. Patch 2: Enable the "cpuset.cpus.partition" file to show the reason that causes invalid partition like "root invalid (No cpu available due to hotplug)". Patch 3: Add a new partition state "isolated" to create a partition root without load balancing. This is for handling intermitten workloads that have a strict low latency requirement. Patch 4: Allow partition roots that are not the top cpuset to distribute all its cpus to child partitions as long as there is no task associated with that partition root. This allows more flexibility for middleware to manage multiple partitions. Patch 5 updates the cgroup-v2.rst file accordingly. Patch 6 adds a new cpuset test to test the new cpuset partition code. Waiman Long (6): cgroup/cpuset: Properly transition to invalid partition cgroup/cpuset: Show invalid partition reason string cgroup/cpuset: Add a new isolated cpus.partition type cgroup/cpuset: Allow non-top parent partition to distribute out all CPUs cgroup/cpuset: Update description of cpuset.cpus.partition in cgroup-v2.rst kselftest/cgroup: Add cpuset v2 partition root state test Documentation/admin-guide/cgroup-v2.rst | 116 +-- kernel/cgroup/cpuset.c | 347 ++++++--- tools/testing/selftests/cgroup/Makefile | 5 +- .../selftests/cgroup/test_cpuset_prs.sh | 663 ++++++++++++++++++ tools/testing/selftests/cgroup/wait_inotify.c | 86 +++ 5 files changed, 1068 insertions(+), 149 deletions(-) create mode 100755 tools/testing/selftests/cgroup/test_cpuset_prs.sh create mode 100644 tools/testing/selftests/cgroup/wait_inotify.c -- 2.18.1

4 years, 2 months

3
8
0 0

[PATCH bpf-next v6 0/5] sockmap: add sockmap support for unix stream socket

by Jiang Wang

This patch series add support for unix stream type for sockmap. Sockmap already supports TCP, UDP, unix dgram types. The unix stream support is similar to unix dgram. Also add selftests for unix stream type in sockmap tests. Jiang Wang (5): af_unix: add read_sock for stream socket types af_unix: add unix_stream_proto for sockmap selftest/bpf: add tests for sockmap with unix stream type. selftest/bpf: change udp to inet in some function names selftest/bpf: add new tests in sockmap for unix stream to tcp. include/net/af_unix.h | 8 +- net/unix/af_unix.c | 91 +++++++++++++++--- net/unix/unix_bpf.c | 93 ++++++++++++++----- .../selftests/bpf/prog_tests/sockmap_listen.c | 48 ++++++---- 4 files changed, 187 insertions(+), 53 deletions(-) v1 -> v2 : - Call unhash in shutdown. - Clean up unix_create1 a bit. - Return -ENOTCONN if socket is not connected. v2 -> v3 : - check for stream type in update_proto - remove intermediate variable in __unix_stream_recvmsg - fix compile warning in unix_stream_recvmsg v3 -> v4 : - remove sk_is_unix_stream, just check TCP_ESTABLISHED for UNIX sockets. - add READ_ONCE in unix_dgram_recvmsg - remove type check in unix_stream_bpf_update_proto v4 -> v5 : - add two missing READ_ONCE for sk_prot. v5 -> v6 : - fix READ_ONCE by reading to a local variable first. -- 2.20.1

4 years, 2 months

5
9
0 0

[PATCH bpf-next v6 0/5] sockmap: add sockmap support for unix stream socket

by Jiang Wang

This patch series add support for unix stream type for sockmap. Sockmap already supports TCP, UDP, unix dgram types. The unix stream support is similar to unix dgram. Also add selftests for unix stream type in sockmap tests. Jiang Wang (5): af_unix: add read_sock for stream socket types af_unix: add unix_stream_proto for sockmap selftest/bpf: add tests for sockmap with unix stream type. selftest/bpf: change udp to inet in some function names selftest/bpf: add new tests in sockmap for unix stream to tcp. include/net/af_unix.h | 8 +- net/unix/af_unix.c | 91 +++++++++++++++--- net/unix/unix_bpf.c | 93 ++++++++++++++----- .../selftests/bpf/prog_tests/sockmap_listen.c | 48 ++++++---- 4 files changed, 187 insertions(+), 53 deletions(-) v1 -> v2 : - Call unhash in shutdown. - Clean up unix_create1 a bit. - Return -ENOTCONN if socket is not connected. v2 -> v3 : - check for stream type in update_proto - remove intermediate variable in __unix_stream_recvmsg - fix compile warning in unix_stream_recvmsg v3 -> v4 : - remove sk_is_unix_stream, just check TCP_ESTABLISHED for UNIX sockets. - add READ_ONCE in unix_dgram_recvmsg - remove type check in unix_stream_bpf_update_proto v4 -> v5 : - add two missing READ_ONCE for sk_prot. v5 -> v6 : - fix READ_ONCE by reading to a local variable first. For the series: Acked-by: John Fastabend <john.fastabend(a)gmail.com> Acked-by: Jakub Sitnicki <jakub(a)cloudflare.com> Also rebased on bpf-next -- 2.20.1

4 years, 2 months

1
5
0 0

[GIT PULL] Kselftest update for Linux 5.14-rc6

by Shuah Khan

Hi Linus, Please pull the following Kselftest fixes update for Linux 5.14-rc6 This Kselftest fixes update for Linux 5.14-rc6 consists of a single patch to sgx test to fix Q1 and Q2 calculation. diff is attached. thanks, -- Shuah ---------------------------------------------------------------- The following changes since commit 2734d6c1b1a089fb593ef6a23d4b70903526fe0c: Linux 5.14-rc2 (2021-07-18 14:13:49 -0700) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest tags/linux-kselftest-fixes-5.14-rc6 for you to fetch changes up to 567c39047dbee341244fe3bf79fea24ee0897ff9: selftests/sgx: Fix Q1 and Q2 calculation in sigstruct.c (2021-07-30 17:20:01 -0600) ---------------------------------------------------------------- linux-kselftest-fixes-5.14-rc6 This Kselftest fixes update for Linux 5.14-rc6 consists of a single patch to sgx test to fix Q1 and Q2 calculation. ---------------------------------------------------------------- Tianjia Zhang (1): selftests/sgx: Fix Q1 and Q2 calculation in sigstruct.c tools/testing/selftests/sgx/sigstruct.c | 41 +++++++++++++++++---------------- 1 file changed, 21 insertions(+), 20 deletions(-) ----------------------------------------------------------------

4 years, 2 months

2
1
0 0

[PATCH v2] selftest: Add test for Soft-Dirty PTE bit

by Gabriel Krisman Bertazi

This introduces three tests: 1) Sanity check soft dirty basic semantics: allocate area, clean, dirty, check if the SD bit flipped. 2) Check VMA reuse: validate the VM_SOFTDIRTY usage 3) Check soft-dirty on huge pages This was motivated by Will Deacon's fix commit 912efa17e512 ("mm: proc: Invalidate TLB after clearing soft-dirty page state"). I was tracking the same issue that he fixed, and this test would have caught it. Cc: Will Deacon <will(a)kernel.org> Signed-off-by: Gabriel Krisman Bertazi <krisman(a)collabora.com> -- Changes since V1: - Fix last minute build break with page_size --- tools/testing/selftests/Makefile | 1 + tools/testing/selftests/soft-dirty/.gitignore | 1 + tools/testing/selftests/soft-dirty/Makefile | 9 + .../testing/selftests/soft-dirty/soft-dirty.c | 254 ++++++++++++++++++ 4 files changed, 265 insertions(+) create mode 100644 tools/testing/selftests/soft-dirty/.gitignore create mode 100644 tools/testing/selftests/soft-dirty/Makefile create mode 100644 tools/testing/selftests/soft-dirty/soft-dirty.c diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile index bc3299a20338..c8dcd7defd33 100644 --- a/tools/testing/selftests/Makefile +++ b/tools/testing/selftests/Makefile @@ -55,6 +55,7 @@ TARGETS += seccomp TARGETS += sgx TARGETS += sigaltstack TARGETS += size +TARGETS += soft-dirty TARGETS += sparc64 TARGETS += splice TARGETS += static_keys diff --git a/tools/testing/selftests/soft-dirty/.gitignore b/tools/testing/selftests/soft-dirty/.gitignore new file mode 100644 index 000000000000..cfb0cfda9bdf --- /dev/null +++ b/tools/testing/selftests/soft-dirty/.gitignore @@ -0,0 +1 @@ +soft-dirty diff --git a/tools/testing/selftests/soft-dirty/Makefile b/tools/testing/selftests/soft-dirty/Makefile new file mode 100644 index 000000000000..d76ad8e0f10d --- /dev/null +++ b/tools/testing/selftests/soft-dirty/Makefile @@ -0,0 +1,9 @@ +# SPDX-License-Identifier: GPL-2.0 +top_srcdir = ../../../.. +INSTALL_HDR_PATH = $(top_srcdir)/usr +LINUX_HDR_PATH = $(INSTALL_HDR_PATH)/include/ + +CFLAGS += -Wall -I$(LINUX_HDR_PATH) -O0 -g3 + +TEST_GEN_PROGS := soft-dirty +include ../lib.mk diff --git a/tools/testing/selftests/soft-dirty/soft-dirty.c b/tools/testing/selftests/soft-dirty/soft-dirty.c new file mode 100644 index 000000000000..5a3d1d0e9043 --- /dev/null +++ b/tools/testing/selftests/soft-dirty/soft-dirty.c @@ -0,0 +1,254 @@ +// SPDX-License-Identifier: GPL-2.0 +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> +#include <stdint.h> +#include <unistd.h> +#include <stdio.h> +#include <unistd.h> +#include <syscall.h> +#include <errno.h> +#include <stdlib.h> +#include <sys/mman.h> +#include <err.h> +#include <string.h> +#include <stdbool.h> +#include <malloc.h> + +#define PAGEMAP_PATH "/proc/self/pagemap" +#define CLEAR_REFS_PATH "/proc/self/clear_refs" +#define SMAP_PATH "/proc/self/smaps" +#define MAX_LINE_LENGTH 512 + +#define TEST_ITERATIONS 10000 + +#define PMD_SIZE_PATH "/sys/kernel/mm/transparent_hugepage/hpage_pmd_size" + +int clear_refs; +int pagemap; + +int pagesize; +int mmap_size; /* Size of test region */ + +static void clear_all_refs(void) +{ + if (write(clear_refs, "4\n", 2) != 2) + printf("%s: failed to clear references\n", __func__); +} + +static void touch_page(char *map, int n) +{ + map[(pagesize * n) + 1]++; +} + +static int check_page(char *map, uint64_t n, int clear) +{ + uint64_t off; + uint64_t buf = 0; + + off = (n + ((uint64_t)map >> 12)) << 3; + + if (lseek(pagemap, off, SEEK_SET) == (off_t) -1) + errx(EXIT_FAILURE, "pagemap llseek failed"); + + if (read(pagemap, &buf, 8) != 8) + errx(EXIT_FAILURE, "pagemap read failed"); + + if (clear) + clear_all_refs(); + + return ((buf >> 55) & 1); +} + +static void test_simple(void) +{ + int i; + char *map; + + printf("- Test %s:\n", __func__); + + map = aligned_alloc(pagesize, mmap_size); + if (!map) + errx(EXIT_FAILURE, "mmap"); + + clear_all_refs(); + + for (i = 0 ; i < TEST_ITERATIONS; i++) { + if (check_page(map, 2, 1) == 1) { + errx(EXIT_FAILURE, "dirty bit was 1, but should be 0 (i=%d)", i); + break; + } + + touch_page(map, 2); + + if (check_page(map, 2, 1) == 0) { + errx(EXIT_FAILURE, "dirty bit was 0, but should be 1 (i=%d)", i); + break; + } + + } + free(map); + + printf("success\n"); +} + +static void test_vma_reuse(void) +{ + char *map, *map2; + + printf("- Test %s:\n", __func__); + + map = (char *) 0x900000000000; + map = mmap(map, mmap_size, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANON, -1, 0); + if (map == MAP_FAILED) + errx(EXIT_FAILURE, "mmap"); + + clear_all_refs(); + touch_page(map, 2); + + munmap(map, mmap_size); + map2 = mmap(map, mmap_size, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANON, -1, 0); + if (map2 == MAP_FAILED) + errx(EXIT_FAILURE, "mmap2"); + + if (map != map2) + errx(EXIT_FAILURE, "map != map2"); + + if (check_page(map, 2, 1) == 0) + errx(-1, "map/unmap lost dirty"); + + munmap(map2, mmap_size); + + printf("success\n"); +} + +/* + * read_pmd_pagesize(), check_for_pattern() and check_huge() adapted + * from 'tools/testing/selftest/vm/split_huge_page_test.c' + */ +static uint64_t read_pmd_pagesize(void) +{ + int fd; + char buf[20]; + ssize_t num_read; + + fd = open(PMD_SIZE_PATH, O_RDONLY); + if (fd == -1) + errx(EXIT_FAILURE, "Open hpage_pmd_size failed"); + + num_read = read(fd, buf, 19); + if (num_read < 1) { + close(fd); + errx(EXIT_FAILURE, "Read hpage_pmd_size failed"); + } + buf[num_read] = '\0'; + close(fd); + + return strtoul(buf, NULL, 10); +} + +static bool check_for_pattern(FILE *fp, const char *pattern, char *buf) +{ + while (fgets(buf, MAX_LINE_LENGTH, fp) != NULL) { + if (!strncmp(buf, pattern, strlen(pattern))) + return true; + } + return false; +} + +static uint64_t check_huge(void *addr) +{ + uint64_t thp = 0; + int ret; + FILE *fp; + char buffer[MAX_LINE_LENGTH]; + char addr_pattern[MAX_LINE_LENGTH]; + + ret = snprintf(addr_pattern, MAX_LINE_LENGTH, "%08lx-", + (unsigned long) addr); + if (ret >= MAX_LINE_LENGTH) + errx(EXIT_FAILURE, "%s: Pattern is too long\n", __func__); + + fp = fopen(SMAP_PATH, "r"); + if (!fp) + errx(EXIT_FAILURE, "%s: Failed to open file %s\n", __func__, SMAP_PATH); + + if (!check_for_pattern(fp, addr_pattern, buffer)) + goto err_out; + + /* + * Fetch the AnonHugePages: in the same block and check the number of + * hugepages. + */ + if (!check_for_pattern(fp, "AnonHugePages:", buffer)) + goto err_out; + + if (sscanf(buffer, "AnonHugePages:%10ld kB", &thp) != 1) + errx(EXIT_FAILURE, "Reading smap error\n"); + +err_out: + fclose(fp); + + return thp; +} + +static void test_hugepage(void) +{ + char *map; + int i, ret; + size_t hpage_len = read_pmd_pagesize(); + + printf("- Test %s:\n", __func__); + + map = memalign(hpage_len, hpage_len); + if (!map) + errx(EXIT_FAILURE, "memalign"); + + ret = madvise(map, hpage_len, MADV_HUGEPAGE); + if (ret) + errx(EXIT_FAILURE, "madvise %d", ret); + + for (i = 0; i < hpage_len; i++) + map[i] = (char)i; + + if (!check_huge(map)) + errx(EXIT_FAILURE, "failed to allocate THP"); + + clear_all_refs(); + for (i = 0 ; i < TEST_ITERATIONS ; i++) { + if (check_page(map, 2, 1) == 1) { + errx(EXIT_FAILURE, "dirty bit was 1, but should be 0 (i=%d)", i); + break; + } + + touch_page(map, 2); + + if (check_page(map, 2, 1) == 0) { + errx(EXIT_FAILURE, "dirty bit was 0, but should be 1 (i=%d)", i); + break; + } + } + munmap(map, mmap_size); + + printf("success\n"); +} + +int main(int argc, char **argv) +{ + pagemap = open(PAGEMAP_PATH, O_RDONLY, 0); + if (pagemap < 0) + errx(EXIT_FAILURE, "Failed to open %s", PAGEMAP_PATH); + + clear_refs = open(CLEAR_REFS_PATH, O_WRONLY, 0); + if (clear_refs < 0) + errx(EXIT_FAILURE, "Failed to open %s", CLEAR_REFS_PATH); + + pagesize = getpagesize(); + mmap_size = 10 * pagesize; + + test_simple(); + test_vma_reuse(); + test_hugepage(); + + return 0; +} -- 2.31.0

4 years, 2 months

2
2
0 0

[PATCH-cgroup v4 0/6] cgroup/cpuset: Add new cpuset partition type & empty effecitve cpus

by Waiman Long

v4: - Rebased to the for-5.15 branch of cgroup git tree and dropped the first 3 patches of v3 series which have been merged. - Beside prohibiting violation of cpu exclusivity rule, allow arbitrary changes to cpuset.cpus of a partition root and force the partition root to become invalid in case any of the partition root constraints are violated. The documentation file and self test are modified accordingly. v3: - Add two new patches (patches 2 & 3) to fix bugs found during the testing process. - Add a new patch to enable inotify event notification when partition become invalid. - Add a test to test event notification when partition become invalid. v2: - Drop v1 patch 1. - Break out some cosmetic changes into a separate patch (patch #1). - Add a new patch to clarify the transition to invalid partition root is mainly caused by hotplug events. - Enhance the partition root state test including CPU online/offline behavior and fix issues found by the test. This patchset makes four enhancements to the cpuset v2 code. Patch 1: Enable event notification on "cpuset.cpus.partition" whenever the state of a partition changes. Patch 2: Properly handle partition root tree and make partition invalid in case changes to cpuset.cpus violate any of the partition root constraints. Patch 3: Add a new partition state "isolated" to create a partition root without load balancing. This is for handling intermitten workloads that have a strict low latency requirement. Patch 4: Allow partition roots that are not the top cpuset to distribute all its cpus to child partitions as long as there is no task associated with that partition root. This allows more flexibility for middleware to manage multiple partitions. Patch 5 updates the cgroup-v2.rst file accordingly. Patch 6 adds a new cpuset test to test the new cpuset partition code. Waiman Long (6): cgroup/cpuset: Enable event notification when partition state changes cgroup/cpuset: Properly handle partition root tree cgroup/cpuset: Add a new isolated cpus.partition type cgroup/cpuset: Allow non-top parent partition root to distribute out all CPUs cgroup/cpuset: Update description of cpuset.cpus.partition in cgroup-v2.rst kselftest/cgroup: Add cpuset v2 partition root state test Documentation/admin-guide/cgroup-v2.rst | 104 +-- kernel/cgroup/cpuset.c | 282 +++++--- tools/testing/selftests/cgroup/Makefile | 5 +- .../selftests/cgroup/test_cpuset_prs.sh | 632 ++++++++++++++++++ tools/testing/selftests/cgroup/wait_inotify.c | 86 +++ 5 files changed, 980 insertions(+), 129 deletions(-) create mode 100755 tools/testing/selftests/cgroup/test_cpuset_prs.sh create mode 100644 tools/testing/selftests/cgroup/wait_inotify.c -- 2.18.1

4 years, 2 months

3
19
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[PATCH v2] kunit: Print test statistics on failure

by David Gow

When a number of tests fail, it can be useful to get higher-level statistics of how many tests are failing (or how many parameters are failing in parameterised tests), and in what cases or suites. This is already done by some non-KUnit tests, so add support for automatically generating these for KUnit tests. This change adds a 'kunit.stats_enabled' switch which has three values: - 0: No stats are printed (current behaviour) - 1: Stats are printed only for tests/suites with more than one subtest (new default) - 2: Always print test statistics For parameterised tests, the summary line looks as follows: " # inode_test_xtimestamp_decoding: pass:16 fail:0 skip:0 total:16" For test suites, there are two lines looking like this: "# ext4_inode_test: pass:1 fail:0 skip:0 total:1" "# Totals: pass:16 fail:0 skip:0 total:16" The first line gives the number of direct subtests, the second "Totals" line is the accumulated sum of all tests and test parameters. This format is based on the one used by kselftest[1]. [1]: https://elixir.bootlin.com/linux/latest/source/tools/testing/selftests/ksel… Signed-off-by: David Gow <davidgow(a)google.com> --- This is the long-awaited v2 of the test statistics patch: https://lore.kernel.org/linux-kselftest/20201211072319.533803-1-davidgow@go… It updates the patch to apply on current mainline kernels, takes skipped tests into account, changes the output format to better match what kselftest uses, and addresses some of the comments from v1. Please let me know what you think, in particular: - Is this sufficient to assuage any worries about porting tests to KUnit? - Are we printing too many stats by default: for a lot of existing tests many of them are useless. I'm particuarly curious about the separate "Totals" line, versus the per-suite line -- is that useful? Should it only be printed when the totals differ? - Is the output format sufficiently legible for people and/or tools which may want to parse it? Cheers, -- David Changelog: Changes since v1: https://lore.kernel.org/linux-kselftest/20201211072319.533803-1-davidgow@go… - Rework to use a new struct kunit_result_stats, with helper functions for adding results, accumulating them over nested structures, etc. - Support skipped tests, report them separately from failures and passes. - New output format to better match kselftest: - "pass:n fail:n skip:n total:n" - Changes to stats_enabled parameter: - Now a module parameter, with description - Default "1" option now prints even when no tests fail. - Improved parser fix which doesn't break crashed test detection. --- lib/kunit/test.c | 109 ++++++++++++++++++++++++++++ tools/testing/kunit/kunit_parser.py | 2 +- 2 files changed, 110 insertions(+), 1 deletion(-) diff --git a/lib/kunit/test.c b/lib/kunit/test.c index d79ecb86ea57..f246b847024e 100644 --- a/lib/kunit/test.c +++ b/lib/kunit/test.c @@ -10,6 +10,7 @@ #include <kunit/test-bug.h> #include <linux/kernel.h> #include <linux/kref.h> +#include <linux/moduleparam.h> #include <linux/sched/debug.h> #include <linux/sched.h> @@ -51,6 +52,51 @@ void __kunit_fail_current_test(const char *file, int line, const char *fmt, ...) EXPORT_SYMBOL_GPL(__kunit_fail_current_test); #endif +/* + * KUnit statistic mode: + * 0 - disabled + * 1 - only when there is more than one subtest + * 2 - enabled + */ +static int kunit_stats_enabled = 1; +module_param_named(stats_enabled, kunit_stats_enabled, int, 0644); +MODULE_PARM_DESC(stats_enabled, + "Print test stats: never (0), only for multiple subtests (1), or always (2)"); + +struct kunit_result_stats { + unsigned long passed; + unsigned long skipped; + unsigned long failed; + unsigned long total; +}; + +static bool kunit_should_print_stats(struct kunit_result_stats stats) +{ + if (kunit_stats_enabled == 0) + return false; + + if (kunit_stats_enabled == 2) + return true; + + return (stats.total > 1); +} + +static void kunit_print_test_stats(struct kunit *test, + struct kunit_result_stats stats) +{ + if (!kunit_should_print_stats(stats)) + return; + + kunit_log(KERN_INFO, test, + KUNIT_SUBTEST_INDENT + "# %s: pass:%lu fail:%lu skip:%lu total:%lu", + test->name, + stats.passed, + stats.failed, + stats.skipped, + stats.total); +} + /* * Append formatted message to log, size of which is limited to * KUNIT_LOG_SIZE bytes (including null terminating byte). @@ -393,15 +439,69 @@ static void kunit_run_case_catch_errors(struct kunit_suite *suite, test_case->status = KUNIT_SUCCESS; } +static void kunit_print_suite_stats(struct kunit_suite *suite, + struct kunit_result_stats suite_stats, + struct kunit_result_stats param_stats) +{ + if (kunit_should_print_stats(suite_stats)) { + kunit_log(KERN_INFO, suite, + "# %s: pass:%lu fail:%lu skip:%lu total:%lu", + suite->name, + suite_stats.passed, + suite_stats.failed, + suite_stats.skipped, + suite_stats.total); + } + + if (kunit_should_print_stats(param_stats)) { + kunit_log(KERN_INFO, suite, + "# Totals: pass:%lu fail:%lu skip:%lu total:%lu", + param_stats.passed, + param_stats.failed, + param_stats.skipped, + param_stats.total); + } +} + +static void kunit_update_stats(struct kunit_result_stats *stats, + enum kunit_status status) +{ + switch (status) { + case KUNIT_SUCCESS: + stats->passed++; + break; + case KUNIT_SKIPPED: + stats->skipped++; + break; + case KUNIT_FAILURE: + stats->failed++; + break; + } + + stats->total++; +} + +static void kunit_accumulate_stats(struct kunit_result_stats *total, + struct kunit_result_stats add) +{ + total->passed += add.passed; + total->skipped += add.skipped; + total->failed += add.failed; + total->total += add.total; +} + int kunit_run_tests(struct kunit_suite *suite) { char param_desc[KUNIT_PARAM_DESC_SIZE]; struct kunit_case *test_case; + struct kunit_result_stats suite_stats = { 0 }; + struct kunit_result_stats total_stats = { 0 }; kunit_print_subtest_start(suite); kunit_suite_for_each_test_case(suite, test_case) { struct kunit test = { .param_value = NULL, .param_index = 0 }; + struct kunit_result_stats param_stats = { 0 }; test_case->status = KUNIT_SKIPPED; if (test_case->generate_params) { @@ -431,14 +531,23 @@ int kunit_run_tests(struct kunit_suite *suite) test.param_value = test_case->generate_params(test.param_value, param_desc); test.param_index++; } + + kunit_update_stats(&param_stats, test.status); + } while (test.param_value); + kunit_print_test_stats(&test, param_stats); + kunit_print_ok_not_ok(&test, true, test_case->status, kunit_test_case_num(suite, test_case), test_case->name, test.status_comment); + + kunit_update_stats(&suite_stats, test_case->status); + kunit_accumulate_stats(&total_stats, param_stats); } + kunit_print_suite_stats(suite, suite_stats, total_stats); kunit_print_subtest_end(suite); return 0; diff --git a/tools/testing/kunit/kunit_parser.py b/tools/testing/kunit/kunit_parser.py index b88db3f51dc5..c699f778da06 100644 --- a/tools/testing/kunit/kunit_parser.py +++ b/tools/testing/kunit/kunit_parser.py @@ -137,7 +137,7 @@ def print_log(log) -> None: for m in log: print_with_timestamp(m) -TAP_ENTRIES = re.compile(r'^(TAP|[\s]*ok|[\s]*not ok|[\s]*[0-9]+\.\.[0-9]+|[\s]*#).*$') +TAP_ENTRIES = re.compile(r'^(TAP|[\s]*ok|[\s]*not ok|[\s]*[0-9]+\.\.[0-9]+|[\s]*# (Subtest:|.*: kunit test case crashed!)).*$') def consume_non_diagnostic(lines: LineStream) -> None: while lines and not TAP_ENTRIES.match(lines.peek()): -- 2.32.0.554.ge1b32706d8-goog

4 years, 2 months

4
4
0 0

[PATCH v2] selftests/sgx: Provide per-op parameter structs for the test enclave

by Jarkko Sakkinen

To add more operations to the test enclave, the protocol needs to allow to have operations with varying parameters. Create a separate parameter struct for each existing operation, with the shared parameters in struct encl_op_header. Signed-off-by: Jarkko Sakkinen <jarkko(a)kernel.org> --- v2: * Declare do_encl_op_put() and do_encl_op_get() as static symbols. * Use a jump table for ops. --- tools/testing/selftests/sgx/defines.h | 14 ++++++- tools/testing/selftests/sgx/main.c | 52 +++++++++++++------------ tools/testing/selftests/sgx/test_encl.c | 33 ++++++++++------ 3 files changed, 61 insertions(+), 38 deletions(-) diff --git a/tools/testing/selftests/sgx/defines.h b/tools/testing/selftests/sgx/defines.h index f88562afcaa0..6ff95a766287 100644 --- a/tools/testing/selftests/sgx/defines.h +++ b/tools/testing/selftests/sgx/defines.h @@ -21,11 +21,21 @@ enum encl_op_type { ENCL_OP_PUT, ENCL_OP_GET, + ENCL_OP_MAX, }; -struct encl_op { +struct encl_op_header { uint64_t type; - uint64_t buffer; +}; + +struct encl_op_put { + struct encl_op_header header; + uint64_t value; +}; + +struct encl_op_get { + struct encl_op_header header; + uint64_t value; }; #endif /* DEFINES_H */ diff --git a/tools/testing/selftests/sgx/main.c b/tools/testing/selftests/sgx/main.c index e252015e0c15..5c1625fa49de 100644 --- a/tools/testing/selftests/sgx/main.c +++ b/tools/testing/selftests/sgx/main.c @@ -215,46 +215,49 @@ FIXTURE_TEARDOWN(enclave) TEST_F(enclave, unclobbered_vdso) { - struct encl_op op; + struct encl_op_put put_op; + struct encl_op_get get_op; - op.type = ENCL_OP_PUT; - op.buffer = MAGIC; + put_op.header.type = ENCL_OP_PUT; + put_op.value = MAGIC; - EXPECT_EQ(ENCL_CALL(&op, &self->run, false), 0); + EXPECT_EQ(ENCL_CALL(&put_op, &self->run, false), 0); EXPECT_EEXIT(&self->run); EXPECT_EQ(self->run.user_data, 0); - op.type = ENCL_OP_GET; - op.buffer = 0; + get_op.header.type = ENCL_OP_GET; + get_op.value = 0; - EXPECT_EQ(ENCL_CALL(&op, &self->run, false), 0); + EXPECT_EQ(ENCL_CALL(&get_op, &self->run, false), 0); - EXPECT_EQ(op.buffer, MAGIC); + EXPECT_EQ(get_op.value, MAGIC); EXPECT_EEXIT(&self->run); EXPECT_EQ(self->run.user_data, 0); } TEST_F(enclave, clobbered_vdso) { - struct encl_op op; + struct encl_op_put put_op; + struct encl_op_get get_op; - op.type = ENCL_OP_PUT; - op.buffer = MAGIC; + put_op.header.type = ENCL_OP_PUT; + put_op.value = MAGIC; - EXPECT_EQ(ENCL_CALL(&op, &self->run, true), 0); + EXPECT_EQ(ENCL_CALL(&put_op, &self->run, true), 0); EXPECT_EEXIT(&self->run); EXPECT_EQ(self->run.user_data, 0); - op.type = ENCL_OP_GET; - op.buffer = 0; + get_op.header.type = ENCL_OP_GET; + get_op.value = 0; - EXPECT_EQ(ENCL_CALL(&op, &self->run, true), 0); + EXPECT_EQ(ENCL_CALL(&get_op, &self->run, true), 0); - EXPECT_EQ(op.buffer, MAGIC); + EXPECT_EQ(get_op.value, MAGIC); EXPECT_EEXIT(&self->run); EXPECT_EQ(self->run.user_data, 0); + } static int test_handler(long rdi, long rsi, long rdx, long ursp, long r8, long r9, @@ -267,25 +270,26 @@ static int test_handler(long rdi, long rsi, long rdx, long ursp, long r8, long r TEST_F(enclave, clobbered_vdso_and_user_function) { - struct encl_op op; + struct encl_op_put put_op; + struct encl_op_get get_op; self->run.user_handler = (__u64)test_handler; self->run.user_data = 0xdeadbeef; - op.type = ENCL_OP_PUT; - op.buffer = MAGIC; + put_op.header.type = ENCL_OP_PUT; + put_op.value = MAGIC; - EXPECT_EQ(ENCL_CALL(&op, &self->run, true), 0); + EXPECT_EQ(ENCL_CALL(&put_op, &self->run, true), 0); EXPECT_EEXIT(&self->run); EXPECT_EQ(self->run.user_data, 0); - op.type = ENCL_OP_GET; - op.buffer = 0; + get_op.header.type = ENCL_OP_GET; + get_op.value = 0; - EXPECT_EQ(ENCL_CALL(&op, &self->run, true), 0); + EXPECT_EQ(ENCL_CALL(&get_op, &self->run, true), 0); - EXPECT_EQ(op.buffer, MAGIC); + EXPECT_EQ(get_op.value, MAGIC); EXPECT_EEXIT(&self->run); EXPECT_EQ(self->run.user_data, 0); } diff --git a/tools/testing/selftests/sgx/test_encl.c b/tools/testing/selftests/sgx/test_encl.c index 734ea52f9924..f11eb8315704 100644 --- a/tools/testing/selftests/sgx/test_encl.c +++ b/tools/testing/selftests/sgx/test_encl.c @@ -16,20 +16,29 @@ static void *memcpy(void *dest, const void *src, size_t n) return dest; } -void encl_body(void *rdi, void *rsi) +static void do_encl_op_put(void *op) +{ + struct encl_op_put *op2 = op; + + memcpy(&encl_buffer[0], &op2->value, 8); +} + +static void do_encl_op_get(void *op) { - struct encl_op *op = (struct encl_op *)rdi; + struct encl_op_get *op2 = op; - switch (op->type) { - case ENCL_OP_PUT: - memcpy(&encl_buffer[0], &op->buffer, 8); - break; + memcpy(&op2->value, &encl_buffer[0], 8); +} + +void encl_body(void *rdi, void *rsi) +{ + const void (*encl_op_array[ENCL_OP_MAX])(void *) = { + do_encl_op_put, + do_encl_op_get, + }; - case ENCL_OP_GET: - memcpy(&op->buffer, &encl_buffer[0], 8); - break; + struct encl_op_header *op = (struct encl_op_header *)rdi; - default: - break; - } + if (op->type < ENCL_OP_MAX) + (*encl_op_array[op->type])(op); } -- 2.32.0

4 years, 2 months

1
0
0 0

[PATCH] selftests/sgx: Provide per-op parameter structs for the test enclave

by Jarkko Sakkinen

To add more operations to the test enclave, the protocol needs to allow to have operations with varying parameters. Create a separate parameter struct for each existing operation, with the shared parameters in struct encl_op_header. Signed-off-by: Jarkko Sakkinen <jarkko(a)kernel.org> --- tools/testing/selftests/sgx/defines.h | 13 ++++++- tools/testing/selftests/sgx/main.c | 52 +++++++++++++------------ tools/testing/selftests/sgx/test_encl.c | 20 ++++++++-- 3 files changed, 56 insertions(+), 29 deletions(-) diff --git a/tools/testing/selftests/sgx/defines.h b/tools/testing/selftests/sgx/defines.h index f88562afcaa0..4c7274e4d1d5 100644 --- a/tools/testing/selftests/sgx/defines.h +++ b/tools/testing/selftests/sgx/defines.h @@ -23,9 +23,18 @@ enum encl_op_type { ENCL_OP_GET, }; -struct encl_op { +struct encl_op_header { uint64_t type; - uint64_t buffer; +}; + +struct encl_op_put { + struct encl_op_header header; + uint64_t value; +}; + +struct encl_op_get { + struct encl_op_header header; + uint64_t value; }; #endif /* DEFINES_H */ diff --git a/tools/testing/selftests/sgx/main.c b/tools/testing/selftests/sgx/main.c index e252015e0c15..5c1625fa49de 100644 --- a/tools/testing/selftests/sgx/main.c +++ b/tools/testing/selftests/sgx/main.c @@ -215,46 +215,49 @@ FIXTURE_TEARDOWN(enclave) TEST_F(enclave, unclobbered_vdso) { - struct encl_op op; + struct encl_op_put put_op; + struct encl_op_get get_op; - op.type = ENCL_OP_PUT; - op.buffer = MAGIC; + put_op.header.type = ENCL_OP_PUT; + put_op.value = MAGIC; - EXPECT_EQ(ENCL_CALL(&op, &self->run, false), 0); + EXPECT_EQ(ENCL_CALL(&put_op, &self->run, false), 0); EXPECT_EEXIT(&self->run); EXPECT_EQ(self->run.user_data, 0); - op.type = ENCL_OP_GET; - op.buffer = 0; + get_op.header.type = ENCL_OP_GET; + get_op.value = 0; - EXPECT_EQ(ENCL_CALL(&op, &self->run, false), 0); + EXPECT_EQ(ENCL_CALL(&get_op, &self->run, false), 0); - EXPECT_EQ(op.buffer, MAGIC); + EXPECT_EQ(get_op.value, MAGIC); EXPECT_EEXIT(&self->run); EXPECT_EQ(self->run.user_data, 0); } TEST_F(enclave, clobbered_vdso) { - struct encl_op op; + struct encl_op_put put_op; + struct encl_op_get get_op; - op.type = ENCL_OP_PUT; - op.buffer = MAGIC; + put_op.header.type = ENCL_OP_PUT; + put_op.value = MAGIC; - EXPECT_EQ(ENCL_CALL(&op, &self->run, true), 0); + EXPECT_EQ(ENCL_CALL(&put_op, &self->run, true), 0); EXPECT_EEXIT(&self->run); EXPECT_EQ(self->run.user_data, 0); - op.type = ENCL_OP_GET; - op.buffer = 0; + get_op.header.type = ENCL_OP_GET; + get_op.value = 0; - EXPECT_EQ(ENCL_CALL(&op, &self->run, true), 0); + EXPECT_EQ(ENCL_CALL(&get_op, &self->run, true), 0); - EXPECT_EQ(op.buffer, MAGIC); + EXPECT_EQ(get_op.value, MAGIC); EXPECT_EEXIT(&self->run); EXPECT_EQ(self->run.user_data, 0); + } static int test_handler(long rdi, long rsi, long rdx, long ursp, long r8, long r9, @@ -267,25 +270,26 @@ static int test_handler(long rdi, long rsi, long rdx, long ursp, long r8, long r TEST_F(enclave, clobbered_vdso_and_user_function) { - struct encl_op op; + struct encl_op_put put_op; + struct encl_op_get get_op; self->run.user_handler = (__u64)test_handler; self->run.user_data = 0xdeadbeef; - op.type = ENCL_OP_PUT; - op.buffer = MAGIC; + put_op.header.type = ENCL_OP_PUT; + put_op.value = MAGIC; - EXPECT_EQ(ENCL_CALL(&op, &self->run, true), 0); + EXPECT_EQ(ENCL_CALL(&put_op, &self->run, true), 0); EXPECT_EEXIT(&self->run); EXPECT_EQ(self->run.user_data, 0); - op.type = ENCL_OP_GET; - op.buffer = 0; + get_op.header.type = ENCL_OP_GET; + get_op.value = 0; - EXPECT_EQ(ENCL_CALL(&op, &self->run, true), 0); + EXPECT_EQ(ENCL_CALL(&get_op, &self->run, true), 0); - EXPECT_EQ(op.buffer, MAGIC); + EXPECT_EQ(get_op.value, MAGIC); EXPECT_EEXIT(&self->run); EXPECT_EQ(self->run.user_data, 0); } diff --git a/tools/testing/selftests/sgx/test_encl.c b/tools/testing/selftests/sgx/test_encl.c index 734ea52f9924..b5fab52f0e1c 100644 --- a/tools/testing/selftests/sgx/test_encl.c +++ b/tools/testing/selftests/sgx/test_encl.c @@ -16,17 +16,31 @@ static void *memcpy(void *dest, const void *src, size_t n) return dest; } +void do_encl_op_put(void *op) +{ + struct encl_op_put *op2 = op; + + memcpy(&encl_buffer[0], &op2->value, 8); +} + +void do_encl_op_get(void *op) +{ + struct encl_op_get *op2 = op; + + memcpy(&op2->value, &encl_buffer[0], 8); +} + void encl_body(void *rdi, void *rsi) { - struct encl_op *op = (struct encl_op *)rdi; + struct encl_op_header *op = (struct encl_op_header *)rdi; switch (op->type) { case ENCL_OP_PUT: - memcpy(&encl_buffer[0], &op->buffer, 8); + do_encl_op_put(op); break; case ENCL_OP_GET: - memcpy(&op->buffer, &encl_buffer[0], 8); + do_encl_op_get(op); break; default: -- 2.32.0

4 years, 2 months

1
0
0 0

[PATCH v2 1/2] kunit: tool: make --raw_output support only showing kunit output

by Daniel Latypov

--raw_output is nice, but it would be nicer if could show only output after KUnit tests have started. So change the flag to allow specifying a string ('kunit'). Make it so `--raw_output` alone will default to `--raw_output=all` and have the same original behavior. Drop the small kunit_parser.raw_output() function since it feels wrong to put it in "kunit_parser.py" when the point of it is to not parse anything. E.g. $ ./tools/testing/kunit/kunit.py run --raw_output=kunit ... [15:24:07] Starting KUnit Kernel ... TAP version 14 1..1 # Subtest: example 1..3 # example_simple_test: initializing ok 1 - example_simple_test # example_skip_test: initializing # example_skip_test: You should not see a line below. ok 2 - example_skip_test # SKIP this test should be skipped # example_mark_skipped_test: initializing # example_mark_skipped_test: You should see a line below. # example_mark_skipped_test: You should see this line. ok 3 - example_mark_skipped_test # SKIP this test should be skipped ok 1 - example [15:24:10] Elapsed time: 6.487s total, 0.001s configuring, 3.510s building, 0.000s running Signed-off-by: Daniel Latypov <dlatypov(a)google.com> --- Documentation/dev-tools/kunit/kunit-tool.rst | 9 ++++++--- tools/testing/kunit/kunit.py | 20 +++++++++++++++----- tools/testing/kunit/kunit_parser.py | 4 ---- tools/testing/kunit/kunit_tool_test.py | 9 +++++++++ 4 files changed, 30 insertions(+), 12 deletions(-) diff --git a/Documentation/dev-tools/kunit/kunit-tool.rst b/Documentation/dev-tools/kunit/kunit-tool.rst index c7ff9afe407a..ae52e0f489f9 100644 --- a/Documentation/dev-tools/kunit/kunit-tool.rst +++ b/Documentation/dev-tools/kunit/kunit-tool.rst @@ -114,9 +114,12 @@ results in TAP format, you can pass the ``--raw_output`` argument. ./tools/testing/kunit/kunit.py run --raw_output -.. note:: - The raw output from test runs may contain other, non-KUnit kernel log - lines. +The raw output from test runs may contain other, non-KUnit kernel log +lines. You can see just KUnit output with ``--raw_output=kunit``: + +.. code-block:: bash + + ./tools/testing/kunit/kunit.py run --raw_output=kunit If you have KUnit results in their raw TAP format, you can parse them and print the human-readable summary with the ``parse`` command for kunit_tool. This diff --git a/tools/testing/kunit/kunit.py b/tools/testing/kunit/kunit.py index 7174377c2172..5a931456e718 100755 --- a/tools/testing/kunit/kunit.py +++ b/tools/testing/kunit/kunit.py @@ -16,6 +16,7 @@ assert sys.version_info >= (3, 7), "Python version is too old" from collections import namedtuple from enum import Enum, auto +from typing import Iterable import kunit_config import kunit_json @@ -114,7 +115,16 @@ def parse_tests(request: KunitParseRequest) -> KunitResult: 'Tests not Parsed.') if request.raw_output: - kunit_parser.raw_output(request.input_data) + output: Iterable[str] = request.input_data + if request.raw_output == 'all': + pass + elif request.raw_output == 'kunit': + output = kunit_parser.extract_tap_lines(output) + else: + print(f'Unknown --raw_output option "{request.raw_output}"', file=sys.stderr) + for line in output: + print(line.rstrip()) + else: test_result = kunit_parser.parse_run_tests(request.input_data) parse_end = time.time() @@ -135,7 +145,6 @@ def parse_tests(request: KunitParseRequest) -> KunitResult: return KunitResult(KunitStatus.SUCCESS, test_result, parse_end - parse_start) - def run_tests(linux: kunit_kernel.LinuxSourceTree, request: KunitRequest) -> KunitResult: run_start = time.time() @@ -181,7 +190,7 @@ def add_common_opts(parser) -> None: parser.add_argument('--build_dir', help='As in the make command, it specifies the build ' 'directory.', - type=str, default='.kunit', metavar='build_dir') + type=str, default='.kunit', metavar='build_dir') parser.add_argument('--make_options', help='X=Y make option, can be repeated.', action='append') @@ -246,8 +255,9 @@ def add_exec_opts(parser) -> None: action='append') def add_parse_opts(parser) -> None: - parser.add_argument('--raw_output', help='don\'t format output from kernel', - action='store_true') + parser.add_argument('--raw_output', help='If set don\'t format output from kernel. ' + 'If set to --raw_output=kunit, filters to just KUnit output.', + type=str, nargs='?', const='all', default=None) parser.add_argument('--json', nargs='?', help='Stores test results in a JSON, and either ' diff --git a/tools/testing/kunit/kunit_parser.py b/tools/testing/kunit/kunit_parser.py index b88db3f51dc5..84938fefbac0 100644 --- a/tools/testing/kunit/kunit_parser.py +++ b/tools/testing/kunit/kunit_parser.py @@ -106,10 +106,6 @@ def extract_tap_lines(kernel_output: Iterable[str]) -> LineStream: yield line_num, line[prefix_len:] return LineStream(lines=isolate_kunit_output(kernel_output)) -def raw_output(kernel_output) -> None: - for line in kernel_output: - print(line.rstrip()) - DIVIDER = '=' * 60 RESET = '\033[0;0m' diff --git a/tools/testing/kunit/kunit_tool_test.py b/tools/testing/kunit/kunit_tool_test.py index 628ab00f74bc..619c4554cbff 100755 --- a/tools/testing/kunit/kunit_tool_test.py +++ b/tools/testing/kunit/kunit_tool_test.py @@ -399,6 +399,15 @@ class KUnitMainTest(unittest.TestCase): self.assertNotEqual(call, mock.call(StrContains('Testing complete.'))) self.assertNotEqual(call, mock.call(StrContains(' 0 tests run'))) + def test_run_raw_output_kunit(self): + self.linux_source_mock.run_kernel = mock.Mock(return_value=[]) + kunit.main(['run', '--raw_output=kunit'], self.linux_source_mock) + self.assertEqual(self.linux_source_mock.build_reconfig.call_count, 1) + self.assertEqual(self.linux_source_mock.run_kernel.call_count, 1) + for call in self.print_mock.call_args_list: + self.assertNotEqual(call, mock.call(StrContains('Testing complete.'))) + self.assertNotEqual(call, mock.call(StrContains(' 0 tests run'))) + def test_exec_timeout(self): timeout = 3453 kunit.main(['exec', '--timeout', str(timeout)], self.linux_source_mock) base-commit: f684616e08e9cd9db3cd53fe2e068dfe02481657 -- 2.32.0.605.g8dce9f2422-goog

4 years, 2 months

2
5
0 0

[syzbot] BUG: sleeping function called from invalid context in _copy_to_iter

by syzbot

Hello, syzbot found the following issue on: HEAD commit: c2eecaa193ff pktgen: Remove redundant clone_skb override git tree: net-next console output: https://syzkaller.appspot.com/x/log.txt?x=12e3a69e300000 kernel config: https://syzkaller.appspot.com/x/.config?x=aba0c23f8230e048 dashboard link: https://syzkaller.appspot.com/bug?extid=8760ca6c1ee783ac4abd compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.1 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15c5b104300000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10062aaa300000 The issue was bisected to: commit 314001f0bf927015e459c9d387d62a231fe93af3 Author: Rao Shoaib <rao.shoaib(a)oracle.com> Date: Sun Aug 1 07:57:07 2021 +0000 af_unix: Add OOB support bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=10765f8e300000 final oops: https://syzkaller.appspot.com/x/report.txt?x=12765f8e300000 console output: https://syzkaller.appspot.com/x/log.txt?x=14765f8e300000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+8760ca6c1ee783ac4abd(a)syzkaller.appspotmail.com Fixes: 314001f0bf92 ("af_unix: Add OOB support") BUG: sleeping function called from invalid context at lib/iov_iter.c:619 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 8443, name: syz-executor700 2 locks held by syz-executor700/8443: #0: ffff888028fa0d00 (&u->iolock){+.+.}-{3:3}, at: unix_stream_read_generic+0x16c6/0x2190 net/unix/af_unix.c:2501 #1: ffff888028fa0df0 (&u->lock){+.+.}-{2:2}, at: spin_lock include/linux/spinlock.h:354 [inline] #1: ffff888028fa0df0 (&u->lock){+.+.}-{2:2}, at: unix_stream_read_generic+0x16d0/0x2190 net/unix/af_unix.c:2502 Preemption disabled at: [<0000000000000000>] 0x0 CPU: 1 PID: 8443 Comm: syz-executor700 Not tainted 5.14.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:105 ___might_sleep.cold+0x1f1/0x237 kernel/sched/core.c:9154 __might_fault+0x6e/0x180 mm/memory.c:5258 _copy_to_iter+0x199/0x1600 lib/iov_iter.c:619 copy_to_iter include/linux/uio.h:139 [inline] simple_copy_to_iter+0x4c/0x70 net/core/datagram.c:519 __skb_datagram_iter+0x10f/0x770 net/core/datagram.c:425 skb_copy_datagram_iter+0x40/0x50 net/core/datagram.c:533 skb_copy_datagram_msg include/linux/skbuff.h:3620 [inline] unix_stream_read_actor+0x78/0xc0 net/unix/af_unix.c:2701 unix_stream_recv_urg net/unix/af_unix.c:2433 [inline] unix_stream_read_generic+0x17cd/0x2190 net/unix/af_unix.c:2504 unix_stream_recvmsg+0xb1/0xf0 net/unix/af_unix.c:2717 sock_recvmsg_nosec net/socket.c:944 [inline] sock_recvmsg net/socket.c:962 [inline] sock_recvmsg net/socket.c:958 [inline] ____sys_recvmsg+0x2c4/0x600 net/socket.c:2622 ___sys_recvmsg+0x127/0x200 net/socket.c:2664 do_recvmmsg+0x24d/0x6d0 net/socket.c:2758 __sys_recvmmsg net/socket.c:2837 [inline] __do_sys_recvmmsg net/socket.c:2860 [inline] __se_sys_recvmmsg net/socket.c:2853 [inline] __x64_sys_recvmmsg+0x20b/0x260 net/socket.c:2853 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x43ef39 Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffca8776d68 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: ffffffffffffffda RBX: 0000000000400488 RCX: 000000000043ef39 RDX: 0000000000000700 RSI: 0000000020001140 RDI: 0000000000000004 RBP: 0000000000402f20 R08: 0000000000000000 R09: 0000000000400488 R10: 0000000000000007 R11: 0000000000000246 R12: 0000000000402fb0 R13: 0000000000000000 R14: 00000000004ac018 R15: 0000000000400488 ============================= [ BUG: Invalid wait context ] 5.14.0-rc3-syzkaller #0 Tainted: G W ----------------------------- syz-executor700/8443 is trying to lock: ffff8880212b6a28 (&mm->mmap_lock#2){++++}-{3:3}, at: __might_fault+0xa3/0x180 mm/memory.c:5260 other info that might help us debug this: context-{4:4} 2 locks held by syz-executor700/8443: #0: ffff888028fa0d00 (&u->iolock){+.+.}-{3:3}, at: unix_stream_read_generic+0x16c6/0x2190 net/unix/af_unix.c:2501 #1: ffff888028fa0df0 (&u->lock){+.+.}-{2:2}, at: spin_lock include/linux/spinlock.h:354 [inline] #1: ffff888028fa0df0 (&u->lock){+.+.}-{2:2}, at: unix_stream_read_generic+0x16d0/0x2190 net/unix/af_unix.c:2502 stack backtrace: CPU: 1 PID: 8443 Comm: syz-executor700 Tainted: G W 5.14.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:105 print_lock_invalid_wait_context kernel/locking/lockdep.c:4666 [inline] check_wait_context kernel/locking/lockdep.c:4727 [inline] __lock_acquire.cold+0x213/0x3ab kernel/locking/lockdep.c:4965 lock_acquire kernel/locking/lockdep.c:5625 [inline] lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590 __might_fault mm/memory.c:5261 [inline] __might_fault+0x106/0x180 mm/memory.c:5246 _copy_to_iter+0x199/0x1600 lib/iov_iter.c:619 copy_to_iter include/linux/uio.h:139 [inline] simple_copy_to_iter+0x4c/0x70 net/core/datagram.c:519 __skb_datagram_iter+0x10f/0x770 net/core/datagram.c:425 skb_copy_datagram_iter+0x40/0x50 net/core/datagram.c:533 skb_copy_datagram_msg include/linux/skbuff.h:3620 [inline] unix_stream_read_actor+0x78/0xc0 net/unix/af_unix.c:2701 unix_stream_recv_urg net/unix/af_unix.c:2433 [inline] unix_stream_read_generic+0x17cd/0x2190 net/unix/af_unix.c:2504 unix_stream_recvmsg+0xb1/0xf0 net/unix/af_unix.c:2717 sock_recvmsg_nosec net/socket.c:944 [inline] sock_recvmsg net/socket.c:962 [inline] sock_recvmsg net/socket.c:958 [inline] ____sys_recvmsg+0x2c4/0x600 net/socket.c:2622 ___sys_recvmsg+0x127/0x200 net/socket.c:2664 do_recvmmsg+0x24d/0x6d0 net/socket.c:2758 __sys_recvmmsg net/socket.c:2837 [inline] __do_sys_recvmmsg net/socket.c:2860 [inline] __se_sys_recvmmsg net/socket.c:2853 [inline] __x64_sys_recvmmsg+0x20b/0x260 net/socket.c:2853 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x43ef39 Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffca8776d68 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: ffffffffffffffda RBX: 0000000000400488 RCX: 000000000043ef39 RDX: 0000000000000700 RSI: 0000000020001140 RDI: 0000000000000004 RBP: 0000000000402f20 R08: 0000000000000000 R09: 0000000000400488 R10: 0000000000000007 R11: 0000000000000246 R12: 0000 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller(a)googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. For information about bisection process see: https://goo.gl/tpsmEJ#bisection syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches

4 years, 2 months

6
20
0 0

[PATCH bpf-next v1 0/5] sockmap: add sockmap support for unix stream socket

by Jiang Wang

This patch series add support for unix stream type for sockmap. Sockmap already supports TCP, UDP, unix dgram types. The unix stream support is similar to unix dgram. Also add selftests for unix stream type in sockmap tests. Jiang Wang (5): af_unix: add read_sock for stream socket types af_unix: add unix_stream_proto for sockmap selftest/bpf: add tests for sockmap with unix stream type. selftest/bpf: change udp to inet in some function names selftest/bpf: add new tests in sockmap for unix stream to tcp. include/net/af_unix.h | 8 +- net/core/sock_map.c | 8 +- net/unix/af_unix.c | 89 ++++++++++++++++-- net/unix/unix_bpf.c | 93 ++++++++++++++----- .../selftests/bpf/prog_tests/sockmap_listen.c | 48 ++++++---- 5 files changed, 194 insertions(+), 52 deletions(-) -- 2.20.1

4 years, 2 months

4
15
0 0

[PATCH] selftests/kselftest/runner/run_one(): Allow running non-executable files

by SeongJae Park

From: SeongJae Park <sjpark(a)amazon.de> When running a test program, 'run_one()' checks if the program has the execution permission and fails if it doesn't. However, it's easy to mistakenly missing the permission, as some common tools like 'diff' don't support the permission change well[1]. Compared to that, making mistakes in the test program's path would only rare, as those are explicitly listed in 'TEST_PROGS'. Therefore, it might make more sense to resolve the situation on our own and run the program. For the reason, this commit makes the test program runner function to still print the warning message but run the program after giving the execution permission in the case. To make nothing corrupted, it also restores the permission after running it. [1] https://lore.kernel.org/mm-commits/YRJisBs9AunccCD4@kroah.com/ Suggested-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: SeongJae Park <sjpark(a)amazon.de> --- tools/testing/selftests/kselftest/runner.sh | 18 +++++++++++------- 1 file changed, 11 insertions(+), 7 deletions(-) diff --git a/tools/testing/selftests/kselftest/runner.sh b/tools/testing/selftests/kselftest/runner.sh index cc9c846585f0..2eb31e945709 100644 --- a/tools/testing/selftests/kselftest/runner.sh +++ b/tools/testing/selftests/kselftest/runner.sh @@ -65,15 +65,16 @@ run_one() TEST_HDR_MSG="selftests: $DIR: $BASENAME_TEST" echo "# $TEST_HDR_MSG" - if [ ! -x "$TEST" ]; then - echo -n "# Warning: file $TEST is " - if [ ! -e "$TEST" ]; then - echo "missing!" - else - echo "not executable, correct this." - fi + if [ ! -e "$TEST" ]; then + echo "# Warning: file $TEST is missing!" echo "not ok $test_num $TEST_HDR_MSG" else + permission_added="false" + if [ ! -x "$TEST" ]; then + echo "# Warning: file $TEST is not executable" + chmod u+x "$TEST" + permission_added="true" + fi cd `dirname $TEST` > /dev/null ((((( tap_timeout ./$BASENAME_TEST 2>&1; echo $? >&3) | tap_prefix >&4) 3>&1) | @@ -88,6 +89,9 @@ run_one() else echo "not ok $test_num $TEST_HDR_MSG # exit=$rc" fi) + if [ "$permission_added" = "true" ]; then + chmod u-x "$TEST" + fi cd - >/dev/null fi } -- 2.17.1

4 years, 2 months

2
2
0 0

[PATCH v2] kunit: tool: allow filtering test cases via glob

by Daniel Latypov

Commit 1d71307a6f94 ("kunit: add unit test for filtering suites by names") introduced the ability to filter which suites we run via glob. This change extends it so we can also filter individual test cases inside of suites as well. This is quite useful when, e.g. * trying to run just the tests cases you've just added or are working on * trying to debug issues with test hermeticity Examples: $ ./tools/testing/kunit/kunit.py run --kunitconfig=lib/kunit '*exec*.parse*' ... ============================================================ ======== [PASSED] kunit_executor_test ======== [PASSED] parse_filter_test ============================================================ Testing complete. 1 tests run. 0 failed. 0 crashed. $ ./tools/testing/kunit/kunit.py run --kunitconfig=lib/kunit '*.no_matching_tests' ... [ERROR] no tests run! Signed-off-by: Daniel Latypov <dlatypov(a)google.com> --- v1 -> v2: update Documentation/.../running_tips.rst --- .../dev-tools/kunit/running_tips.rst | 11 +- lib/kunit/executor.c | 107 +++++++++++++++-- lib/kunit/executor_test.c | 109 +++++++++++++++--- 3 files changed, 201 insertions(+), 26 deletions(-) diff --git a/Documentation/dev-tools/kunit/running_tips.rst b/Documentation/dev-tools/kunit/running_tips.rst index d1626d548fa5..f471bcbdabd4 100644 --- a/Documentation/dev-tools/kunit/running_tips.rst +++ b/Documentation/dev-tools/kunit/running_tips.rst @@ -25,8 +25,8 @@ It can be handy to create a bash function like: Running a subset of tests ------------------------- -``kunit.py run`` accepts an optional glob argument to filter tests. Currently -this only matches against suite names, but this may change in the future. +``kunit.py run`` accepts an optional glob argument to filter tests. The format +is ``"<suite_glob>[.test_glob]"``. Say that we wanted to run the sysctl tests, we could do so via: @@ -35,6 +35,13 @@ Say that we wanted to run the sysctl tests, we could do so via: $ echo -e 'CONFIG_KUNIT=y\nCONFIG_KUNIT_ALL_TESTS=y' > .kunit/.kunitconfig $ ./tools/testing/kunit/kunit.py run 'sysctl*' +We can filter down to just the "write" tests via: + +.. code-block:: bash + + $ echo -e 'CONFIG_KUNIT=y\nCONFIG_KUNIT_ALL_TESTS=y' > .kunit/.kunitconfig + $ ./tools/testing/kunit/kunit.py run 'sysctl*.*write*' + We're paying the cost of building more tests than we need this way, but it's easier than fiddling with ``.kunitconfig`` files or commenting out ``kunit_suite``'s. diff --git a/lib/kunit/executor.c b/lib/kunit/executor.c index acd1de436f59..bab3ab940acc 100644 --- a/lib/kunit/executor.c +++ b/lib/kunit/executor.c @@ -17,21 +17,80 @@ extern struct kunit_suite * const * const __kunit_suites_end[]; static char *filter_glob_param; module_param_named(filter_glob, filter_glob_param, charp, 0); MODULE_PARM_DESC(filter_glob, - "Filter which KUnit test suites run at boot-time, e.g. list*"); + "Filter which KUnit test suites/tests run at boot-time, e.g. list* or list*.*del_test"); + +/* glob_match() needs NULL terminated strings, so we need a copy of filter_glob_param. */ +struct kunit_test_filter { + char *suite_glob; + char *test_glob; +}; + +/* Split "suite_glob.test_glob" into two. Assumes filter_glob is not empty. */ +static void kunit_parse_filter_glob(struct kunit_test_filter *parsed, + const char *filter_glob) +{ + const int len = strlen(filter_glob); + const char *period = strchr(filter_glob, '.'); + + if (!period) { + parsed->suite_glob = kmalloc(len, GFP_KERNEL); + parsed->test_glob = NULL; + strcpy(parsed->suite_glob, filter_glob); + return; + } + + parsed->suite_glob = kzalloc(period - filter_glob + 1, GFP_KERNEL); + parsed->test_glob = kzalloc(len - (period - filter_glob) + 1, GFP_KERNEL); + + strncpy(parsed->suite_glob, filter_glob, period - filter_glob); + strncpy(parsed->test_glob, period + 1, len - (period - filter_glob)); +} + +/* Create a copy of suite with only tests that match test_glob. */ +static struct kunit_suite * +kunit_filter_tests(struct kunit_suite *const suite, const char *test_glob) +{ + int n = 0; + struct kunit_case *filtered, *test_case; + struct kunit_suite *copy; + + kunit_suite_for_each_test_case(suite, test_case) { + if (!test_glob || glob_match(test_glob, test_case->name)) + ++n; + } + + if (n == 0) + return NULL; + + /* Use memcpy to workaround copy->name being const. */ + copy = kmalloc(sizeof(*copy), GFP_KERNEL); + memcpy(copy, suite, sizeof(*copy)); + + filtered = kcalloc(n + 1, sizeof(*filtered), GFP_KERNEL); + + n = 0; + kunit_suite_for_each_test_case(suite, test_case) { + if (!test_glob || glob_match(test_glob, test_case->name)) + filtered[n++] = *test_case; + } + + copy->test_cases = filtered; + return copy; +} static char *kunit_shutdown; core_param(kunit_shutdown, kunit_shutdown, charp, 0644); static struct kunit_suite * const * kunit_filter_subsuite(struct kunit_suite * const * const subsuite, - const char *filter_glob) + struct kunit_test_filter *filter) { int i, n = 0; - struct kunit_suite **filtered; + struct kunit_suite **filtered, *filtered_suite; n = 0; - for (i = 0; subsuite[i] != NULL; ++i) { - if (glob_match(filter_glob, subsuite[i]->name)) + for (i = 0; subsuite[i]; ++i) { + if (glob_match(filter->suite_glob, subsuite[i]->name)) ++n; } @@ -44,8 +103,11 @@ kunit_filter_subsuite(struct kunit_suite * const * const subsuite, n = 0; for (i = 0; subsuite[i] != NULL; ++i) { - if (glob_match(filter_glob, subsuite[i]->name)) - filtered[n++] = subsuite[i]; + if (!glob_match(filter->suite_glob, subsuite[i]->name)) + continue; + filtered_suite = kunit_filter_tests(subsuite[i], filter->test_glob); + if (filtered_suite) + filtered[n++] = filtered_suite; } filtered[n] = NULL; @@ -57,12 +119,32 @@ struct suite_set { struct kunit_suite * const * const *end; }; +static void kunit_free_subsuite(struct kunit_suite * const *subsuite) +{ + unsigned int i; + + for (i = 0; subsuite[i]; i++) + kfree(subsuite[i]); + + kfree(subsuite); +} + +static void kunit_free_suite_set(struct suite_set suite_set) +{ + struct kunit_suite * const * const *suites; + + for (suites = suite_set.start; suites < suite_set.end; suites++) + kunit_free_subsuite(*suites); + kfree(suite_set.start); +} + static struct suite_set kunit_filter_suites(const struct suite_set *suite_set, const char *filter_glob) { int i; struct kunit_suite * const **copy, * const *filtered_subsuite; struct suite_set filtered; + struct kunit_test_filter filter; const size_t max = suite_set->end - suite_set->start; @@ -73,12 +155,17 @@ static struct suite_set kunit_filter_suites(const struct suite_set *suite_set, return filtered; } + kunit_parse_filter_glob(&filter, filter_glob); + for (i = 0; i < max; ++i) { - filtered_subsuite = kunit_filter_subsuite(suite_set->start[i], filter_glob); + filtered_subsuite = kunit_filter_subsuite(suite_set->start[i], &filter); if (filtered_subsuite) *copy++ = filtered_subsuite; } filtered.end = copy; + + kfree(filter.suite_glob); + kfree(filter.test_glob); return filtered; } @@ -126,9 +213,7 @@ int kunit_run_all_tests(void) __kunit_test_suites_init(*suites); if (filter_glob_param) { /* a copy was made of each array */ - for (suites = suite_set.start; suites < suite_set.end; suites++) - kfree(*suites); - kfree(suite_set.start); + kunit_free_suite_set(suite_set); } kunit_handle_shutdown(); diff --git a/lib/kunit/executor_test.c b/lib/kunit/executor_test.c index cdbe54b16501..dbb49c099e02 100644 --- a/lib/kunit/executor_test.c +++ b/lib/kunit/executor_test.c @@ -9,38 +9,103 @@ #include <kunit/test.h> static void kfree_at_end(struct kunit *test, const void *to_free); +static void free_subsuite_at_end(struct kunit *test, + struct kunit_suite *const *to_free); static struct kunit_suite *alloc_fake_suite(struct kunit *test, - const char *suite_name); + const char *suite_name, + struct kunit_case *test_cases); + +void dummy_test(struct kunit *test) {} + +struct kunit_case dummy_test_cases[] = { + /* .run_case is not important, just needs to be non-NULL */ + { .name = "test1", .run_case = dummy_test }, + { .name = "test2", .run_case = dummy_test }, + {}, +}; + +static void parse_filter_test(struct kunit *test) +{ + struct kunit_test_filter filter = {NULL, NULL}; + + kunit_parse_filter_glob(&filter, "suite"); + KUNIT_EXPECT_STREQ(test, filter.suite_glob, "suite"); + KUNIT_EXPECT_FALSE(test, filter.test_glob); + kfree(filter.suite_glob); + kfree(filter.test_glob); + + kunit_parse_filter_glob(&filter, "suite.test"); + KUNIT_EXPECT_STREQ(test, filter.suite_glob, "suite"); + KUNIT_EXPECT_STREQ(test, filter.test_glob, "test"); + kfree(filter.suite_glob); + kfree(filter.test_glob); +} static void filter_subsuite_test(struct kunit *test) { struct kunit_suite *subsuite[3] = {NULL, NULL, NULL}; struct kunit_suite * const *filtered; + struct kunit_test_filter filter = { + .suite_glob = "suite2", + .test_glob = NULL, + }; - subsuite[0] = alloc_fake_suite(test, "suite1"); - subsuite[1] = alloc_fake_suite(test, "suite2"); + subsuite[0] = alloc_fake_suite(test, "suite1", dummy_test_cases); + subsuite[1] = alloc_fake_suite(test, "suite2", dummy_test_cases); /* Want: suite1, suite2, NULL -> suite2, NULL */ - filtered = kunit_filter_subsuite(subsuite, "suite2*"); + filtered = kunit_filter_subsuite(subsuite, &filter); KUNIT_ASSERT_NOT_ERR_OR_NULL(test, filtered); - kfree_at_end(test, filtered); + free_subsuite_at_end(test, filtered); + /* Validate we just have suite2 */ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, filtered[0]); KUNIT_EXPECT_STREQ(test, (const char *)filtered[0]->name, "suite2"); + KUNIT_EXPECT_FALSE(test, filtered[1]); +} + +static void filter_subsuite_test_glob_test(struct kunit *test) +{ + struct kunit_suite *subsuite[3] = {NULL, NULL, NULL}; + struct kunit_suite * const *filtered; + struct kunit_test_filter filter = { + .suite_glob = "suite2", + .test_glob = "test2", + }; + + subsuite[0] = alloc_fake_suite(test, "suite1", dummy_test_cases); + subsuite[1] = alloc_fake_suite(test, "suite2", dummy_test_cases); + /* Want: suite1, suite2, NULL -> suite2 (just test1), NULL */ + filtered = kunit_filter_subsuite(subsuite, &filter); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, filtered); + free_subsuite_at_end(test, filtered); + + /* Validate we just have suite2 */ + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, filtered[0]); + KUNIT_EXPECT_STREQ(test, (const char *)filtered[0]->name, "suite2"); KUNIT_EXPECT_FALSE(test, filtered[1]); + + /* Now validate we just have test2 */ + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, filtered[0]->test_cases); + KUNIT_EXPECT_STREQ(test, (const char *)filtered[0]->test_cases[0].name, "test2"); + KUNIT_EXPECT_FALSE(test, filtered[0]->test_cases[1].name); } static void filter_subsuite_to_empty_test(struct kunit *test) { struct kunit_suite *subsuite[3] = {NULL, NULL, NULL}; struct kunit_suite * const *filtered; + struct kunit_test_filter filter = { + .suite_glob = "not_found", + .test_glob = NULL, + }; - subsuite[0] = alloc_fake_suite(test, "suite1"); - subsuite[1] = alloc_fake_suite(test, "suite2"); + subsuite[0] = alloc_fake_suite(test, "suite1", dummy_test_cases); + subsuite[1] = alloc_fake_suite(test, "suite2", dummy_test_cases); - filtered = kunit_filter_subsuite(subsuite, "not_found"); - kfree_at_end(test, filtered); /* just in case */ + filtered = kunit_filter_subsuite(subsuite, &filter); + free_subsuite_at_end(test, filtered); /* just in case */ KUNIT_EXPECT_FALSE_MSG(test, filtered, "should be NULL to indicate no match"); @@ -52,7 +117,7 @@ static void kfree_subsuites_at_end(struct kunit *test, struct suite_set *suite_s kfree_at_end(test, suite_set->start); for (suites = suite_set->start; suites < suite_set->end; suites++) - kfree_at_end(test, *suites); + free_subsuite_at_end(test, *suites); } static void filter_suites_test(struct kunit *test) @@ -74,8 +139,8 @@ static void filter_suites_test(struct kunit *test) struct suite_set filtered = {.start = NULL, .end = NULL}; /* Emulate two files, each having one suite */ - subsuites[0][0] = alloc_fake_suite(test, "suite0"); - subsuites[1][0] = alloc_fake_suite(test, "suite1"); + subsuites[0][0] = alloc_fake_suite(test, "suite0", dummy_test_cases); + subsuites[1][0] = alloc_fake_suite(test, "suite1", dummy_test_cases); /* Filter out suite1 */ filtered = kunit_filter_suites(&suite_set, "suite0"); @@ -88,7 +153,9 @@ static void filter_suites_test(struct kunit *test) } static struct kunit_case executor_test_cases[] = { + KUNIT_CASE(parse_filter_test), KUNIT_CASE(filter_subsuite_test), + KUNIT_CASE(filter_subsuite_test_glob_test), KUNIT_CASE(filter_subsuite_to_empty_test), KUNIT_CASE(filter_suites_test), {} @@ -120,14 +187,30 @@ static void kfree_at_end(struct kunit *test, const void *to_free) (void *)to_free); } +static void free_subsuite_res_free(struct kunit_resource *res) +{ + kunit_free_subsuite(res->data); +} + +static void free_subsuite_at_end(struct kunit *test, + struct kunit_suite *const *to_free) +{ + if (IS_ERR_OR_NULL(to_free)) + return; + kunit_alloc_and_get_resource(test, NULL, free_subsuite_res_free, + GFP_KERNEL, (void *)to_free); +} + static struct kunit_suite *alloc_fake_suite(struct kunit *test, - const char *suite_name) + const char *suite_name, + struct kunit_case *test_cases) { struct kunit_suite *suite; /* We normally never expect to allocate suites, hence the non-const cast. */ suite = kunit_kzalloc(test, sizeof(*suite), GFP_KERNEL); strncpy((char *)suite->name, suite_name, sizeof(suite->name) - 1); + suite->test_cases = test_cases; return suite; } base-commit: 36a21d51725af2ce0700c6ebcb6b9594aac658a6 -- 2.32.0.605.g8dce9f2422-goog

4 years, 2 months

3
3
0 0

[PATCH] selftests/damon/debugfs_attrs: Add missing execute permission

by SeongJae Park

From: SeongJae Park <sjpark(a)amazon.de> Commit 04edafbc0c07 ("mm/damon: add user space selftests") of linux-mm[1] gives no execute permission to 'debugfs_attrs.sh' file. This results in a DAMON selftest failure as below: $ make -C tools/testing/selftests/damon run_tests make: Entering directory '/home/sjpark/linux/tools/testing/selftests/damon' TAP version 13 1..1 # selftests: damon: debugfs_attrs.sh # Warning: file debugfs_attrs.sh is not executable, correct this. not ok 1 selftests: damon: debugfs_attrs.sh make: Leaving directory '/home/sjpark/linux/tools/testing/selftests/damon' To solve the problem, this commit adds the execute permission for 'debugfs_attrs.sh' file. [1] https://github.com/hnaz/linux-mm/commit/04edafbc0c07 Signed-off-by: SeongJae Park <sjpark(a)amazon.de> --- tools/testing/selftests/damon/debugfs_attrs.sh | 0 1 file changed, 0 insertions(+), 0 deletions(-) mode change 100644 => 100755 tools/testing/selftests/damon/debugfs_attrs.sh diff --git a/tools/testing/selftests/damon/debugfs_attrs.sh b/tools/testing/selftests/damon/debugfs_attrs.sh old mode 100644 new mode 100755 -- 2.17.1

4 years, 2 months

2
2
0 0

[PATCH v3 0/9] cgroup/cpuset: Add new cpuset partition type & empty effecitve cpus

by Waiman Long

v3: - Add two new patches (patches 2 & 3) to fix bugs found during the testing process. - Add a new patch to enable inotify event notification when partition become invalid. - Add a test to test event notification when partition become invalid. v2: - Drop v1 patch 1. - Break out some cosmetic changes into a separate patch (patch #1). - Add a new patch to clarify the transition to invalid partition root is mainly caused by hotplug events. - Enhance the partition root state test including CPU online/offline behavior and fix issues found by the test. This patchset fixes two bugs and makes four enhancements to the cpuset v2 code. Bug fixes: Patch 2: Fix a hotplug handling bug when just all cpus in subparts_cpus are offlined. Patch 3: Fix violation of cpuset locking rule. Enhancements: Patch 4: Enable event notification on "cpuset.cpus.partition" when a partition become invalid. Patch 5: Clarify the use of invalid partition root and add new checks to make sure that normal cpuset control file operations will not be allowed to create invalid partition root. It also fixes some of the issues in existing code. Patch 6: Add a new partition state "isolated" to create a partition root without load balancing. This is for handling intermitten workloads that have a strict low latency requirement. Patch 7: Allow partition roots that are not the top cpuset to distribute all its cpus to child partitions as long as there is no task associated with that partition root. This allows more flexibility for middleware to manage multiple partitions. Patch 8 updates the cgroup-v2.rst file accordingly. Patch 9 adds a new cpuset test to test the new cpuset partition code. Waiman Long (9): cgroup/cpuset: Miscellaneous code cleanup cgroup/cpuset: Fix a partition bug with hotplug cgroup/cpuset: Fix violation of cpuset locking rule cgroup/cpuset: Enable event notification when partition become invalid cgroup/cpuset: Clarify the use of invalid partition root cgroup/cpuset: Add a new isolated cpus.partition type cgroup/cpuset: Allow non-top parent partition root to distribute out all CPUs cgroup/cpuset: Update description of cpuset.cpus.partition in cgroup-v2.rst kselftest/cgroup: Add cpuset v2 partition root state test Documentation/admin-guide/cgroup-v2.rst | 94 ++- kernel/cgroup/cpuset.c | 360 +++++++--- tools/testing/selftests/cgroup/Makefile | 5 +- .../selftests/cgroup/test_cpuset_prs.sh | 626 ++++++++++++++++++ tools/testing/selftests/cgroup/wait_inotify.c | 67 ++ 5 files changed, 1007 insertions(+), 145 deletions(-) create mode 100755 tools/testing/selftests/cgroup/test_cpuset_prs.sh create mode 100644 tools/testing/selftests/cgroup/wait_inotify.c -- 2.18.1

4 years, 2 months

5
26
0 0

Re: [kbuild-all] Re: sparc64-linux-gcc: error: unrecognized command-line option '-mxsave'

by Thomas Gleixner

On Mon, Aug 09 2021 at 09:54, Rong A. Chen wrote: > On 8/6/2021 8:42 PM, Thomas Gleixner wrote: >> On Wed, Aug 04 2021 at 17:04, Rong A. Chen wrote: >>> On 7/27/2021 10:52 PM, Dave Hansen wrote: >>>> On 7/26/21 8:11 PM, kernel test robot wrote: >>>>>>> sparc64-linux-gcc: error: unrecognized command-line option '-mxsave' >>>> >>>> Is there something else funky going on here? All of the "-mxsave" flags >>>> that I can find are under checks for x86 builds, like: >>>> >>>> ifeq ($(CAN_BUILD_I386),1) >>>> $(BINARIES_32): CFLAGS += -m32 -mxsave >>>> .. >>>> >>>> I'm confused how we could have a sparc64 compiler (and only a sparc64 >>>> compiler) that would end up with "-mxsave" in CFLAGS. >>> >>> Hi Dave, >>> >>> We can reproduce the error and have no idea too, but we have disabled >>> the test for selftests on non-x86 arch. >> >> This smells like a host/target compiler mixup. Can you please make the >> kernel build verbose with 'V=1' and provide the full build output? > > Hi Thomas, > > I run the below command: > > $make V=1 --keep-going CROSS_COMPILE=sparc64-linux- -j1 O=build_dir > ARCH=sparc64 -C tools/testing/selftests/vm > ... > sparc64-linux-gcc -Wall -I ../../../../usr/include -no-pie -m32 -mxsave > protection_keys.c -lrt -lpthread -lrt -ldl -lm -o > /root/linux/tools/testing/selftests/vm/protection_keys_32 > sparc64-linux-gcc: error: unrecognized command-line option '-mxsave' > make: *** [Makefile:107: Right. That's clearly broken because all these x8664 muck is derived from: MACHINE ?= $(shell echo $(uname_M) | sed -e 's/aarch64.*/arm64/' -e 's/ppc64.*/ppc64/') which obviously fails for cross compiling because it's looking at the compile machine and not at the target. Something like the below should cure that, but TBH I lost track which one of ARCH, SUBARCH, UTS_MACHINE should be used here. The kbuild folks should know. Thanks, tglx --- --- a/tools/testing/selftests/vm/Makefile +++ b/tools/testing/selftests/vm/Makefile @@ -4,7 +4,6 @@ include local_config.mk uname_M := $(shell uname -m 2>/dev/null || echo not) -MACHINE ?= $(shell echo $(uname_M) | sed -e 's/aarch64.*/arm64/' -e 's/ppc64.*/ppc64/') # Without this, failed build products remain, with up-to-date timestamps, # thus tricking Make (and you!) into believing that All Is Well, in subsequent @@ -46,7 +45,7 @@ TEST_GEN_FILES += transhuge-stress TEST_GEN_FILES += userfaultfd TEST_GEN_FILES += split_huge_page_test -ifeq ($(MACHINE),x86_64) +ifeq ($(UTS_MACHINE),x86_64) CAN_BUILD_I386 := $(shell ./../x86/check_cc.sh $(CC) ../x86/trivial_32bit_program.c -m32) CAN_BUILD_X86_64 := $(shell ./../x86/check_cc.sh $(CC) ../x86/trivial_64bit_program.c) CAN_BUILD_WITH_NOPIE := $(shell ./../x86/check_cc.sh $(CC) ../x86/trivial_program.c -no-pie) @@ -68,7 +67,7 @@ TEST_GEN_FILES += $(BINARIES_64) endif else -ifneq (,$(findstring $(MACHINE),ppc64)) +ifneq (,$(findstring $(UTS_MACHINE),ppc64)) TEST_GEN_FILES += protection_keys endif @@ -87,7 +86,7 @@ TEST_FILES := test_vmalloc.sh KSFT_KHDR_INSTALL := 1 include ../lib.mk -ifeq ($(MACHINE),x86_64) +ifeq ($(UTS_MACHINE),x86_64) BINARIES_32 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_32)) BINARIES_64 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_64))

4 years, 2 months

1
0
0 0

[net-next, v5, 00/11] ptp: support virtual clocks and timestamping

by Yangbo Lu

Current PTP driver exposes one PTP device to user which binds network interface/interfaces to provide timestamping. Actually we have a way utilizing timecounter/cyclecounter to virtualize any number of PTP clocks based on a same free running physical clock for using. The purpose of having multiple PTP virtual clocks is for user space to directly/easily use them for multiple domains synchronization. user space: ^ ^ | SO_TIMESTAMPING new flag: | Packets with | SOF_TIMESTAMPING_BIND_PHC | TX/RX HW timestamps v v +--------------------------------------------+ sock: | sock (new member sk_bind_phc) | +--------------------------------------------+ ^ ^ | ethtool_get_phc_vclocks | Convert HW timestamps | | to sk_bind_phc v v +--------------+--------------+--------------+ vclock: | ptp1 | ptp2 | ptpN | +--------------+--------------+--------------+ pclock: | ptp0 free running | +--------------------------------------------+ The block diagram may explain how it works. Besides the PTP virtual clocks, the packet HW timestamp converting to the bound PHC is also done in sock driver. For user space, PTP virtual clocks can be created via sysfs, and extended SO_TIMESTAMPING API (new flag SOF_TIMESTAMPING_BIND_PHC) can be used to bind one PTP virtual clock for timestamping. The test tool timestamping.c (together with linuxptp phc_ctl tool) can be used to verify: # echo 4 > /sys/class/ptp/ptp0/n_vclocks [ 129.399472] ptp ptp0: new virtual clock ptp2 [ 129.404234] ptp ptp0: new virtual clock ptp3 [ 129.409532] ptp ptp0: new virtual clock ptp4 [ 129.413942] ptp ptp0: new virtual clock ptp5 [ 129.418257] ptp ptp0: guarantee physical clock free running # # phc_ctl /dev/ptp2 set 10000 # phc_ctl /dev/ptp3 set 20000 # # timestamping eno0 2 SOF_TIMESTAMPING_TX_HARDWARE SOF_TIMESTAMPING_RAW_HARDWARE SOF_TIMESTAMPING_BIND_PHC # timestamping eno0 2 SOF_TIMESTAMPING_RX_HARDWARE SOF_TIMESTAMPING_RAW_HARDWARE SOF_TIMESTAMPING_BIND_PHC # timestamping eno0 3 SOF_TIMESTAMPING_TX_HARDWARE SOF_TIMESTAMPING_RAW_HARDWARE SOF_TIMESTAMPING_BIND_PHC # timestamping eno0 3 SOF_TIMESTAMPING_RX_HARDWARE SOF_TIMESTAMPING_RAW_HARDWARE SOF_TIMESTAMPING_BIND_PHC Changes for v2: - Converted to num_vclocks for creating virtual clocks. - Guranteed physical clock free running when using virtual clocks. - Fixed build warning. - Updated copyright. Changes for v3: - Supported PTP virtual clock in default in PTP driver. - Protected concurrency of ptp->num_vclocks accessing. - Supported PHC vclocks query via ethtool. - Extended SO_TIMESTAMPING API for PHC binding. - Converted HW timestamps to PHC bound, instead of previous binding domain value to PHC idea. - Other minor fixes. Changes for v4: - Used do_aux_work callback for vclock refreshing instead. - Used unsigned int for vclocks number, and max_vclocks for limitiation. - Fixed mutex locking. - Dynamically allocated memory for vclock index storage. - Removed ethtool ioctl command for vclocks getting. - Updated doc for ethtool phc vclocks get. - Converted to mptcp_setsockopt_sol_socket_timestamping(). - Passed so_timestamping for sock_set_timestamping. - Fixed checkpatch/build. - Other minor fixed. Changes for v5: - Fixed checkpatch/build/bug reported by test robot. Yangbo Lu (11): ptp: add ptp virtual clock driver framework ptp: support ptp physical/virtual clocks conversion ptp: track available ptp vclocks information ptp: add kernel API ptp_get_vclocks_index() ethtool: add a new command for getting PHC virtual clocks ptp: add kernel API ptp_convert_timestamp() mptcp: setsockopt: convert to mptcp_setsockopt_sol_socket_timestamping() net: sock: extend SO_TIMESTAMPING for PHC binding net: socket: support hardware timestamp conversion to PHC bound selftests/net: timestamping: support binding PHC MAINTAINERS: add entry for PTP virtual clock driver Documentation/ABI/testing/sysfs-ptp | 20 ++ Documentation/networking/ethtool-netlink.rst | 22 ++ MAINTAINERS | 7 + drivers/ptp/Makefile | 2 +- drivers/ptp/ptp_clock.c | 42 +++- drivers/ptp/ptp_private.h | 39 ++++ drivers/ptp/ptp_sysfs.c | 160 ++++++++++++++ drivers/ptp/ptp_vclock.c | 219 +++++++++++++++++++ include/linux/ethtool.h | 10 + include/linux/ptp_clock_kernel.h | 31 ++- include/net/sock.h | 8 +- include/uapi/linux/ethtool_netlink.h | 15 ++ include/uapi/linux/net_tstamp.h | 17 +- net/core/sock.c | 65 +++++- net/ethtool/Makefile | 2 +- net/ethtool/common.c | 14 ++ net/ethtool/netlink.c | 10 + net/ethtool/netlink.h | 2 + net/ethtool/phc_vclocks.c | 94 ++++++++ net/mptcp/sockopt.c | 68 ++++-- net/socket.c | 19 +- tools/testing/selftests/net/timestamping.c | 55 +++-- 22 files changed, 867 insertions(+), 54 deletions(-) create mode 100644 drivers/ptp/ptp_vclock.c create mode 100644 net/ethtool/phc_vclocks.c base-commit: b6df00789e2831fff7a2c65aa7164b2a4dcbe599 -- 2.25.1

4 years, 2 months

5
18
0 0

[PATCH] selftests/bpf: Fix bpf-iter-tcp4 test to print correctly the dest IP

by Jose Blanquicet

Currently, this test is incorrectly printing the destination port in place of the destination IP. Signed-off-by: Jose Blanquicet <josebl(a)microsoft.com> --- tools/testing/selftests/bpf/progs/bpf_iter_tcp4.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_tcp4.c b/tools/testing/selftests/bpf/progs/bpf_iter_tcp4.c index 2e4775c35414..92267abb462f 100644 --- a/tools/testing/selftests/bpf/progs/bpf_iter_tcp4.c +++ b/tools/testing/selftests/bpf/progs/bpf_iter_tcp4.c @@ -121,7 +121,7 @@ static int dump_tcp_sock(struct seq_file *seq, struct tcp_sock *tp, } BPF_SEQ_PRINTF(seq, "%4d: %08X:%04X %08X:%04X ", - seq_num, src, srcp, destp, destp); + seq_num, src, srcp, dest, destp); BPF_SEQ_PRINTF(seq, "%02X %08X:%08X %02X:%08lX %08X %5u %8d %lu %d ", state, tp->write_seq - tp->snd_una, rx_queue, -- 2.25.1

4 years, 2 months

3
2
0 0

[PATCH v3 0/8] Add an oversubscription test

by Jarkko Sakkinen

The goal of these patches is to add a test case for a SGX reserved memory oversubscription, i.e. make sure that the page reclaimer and and the page fault handler are working correctly. Change Log ========== v3: * Reorganized the patch set into smaller pieces, and refactored the code so that the test enclave can be created inside each test case. Added a new test case unclobbered_vdso_oversubscribed that creates a large enough heap to fill all of the available SGX reserved memory (EPC). Jarkko Sakkinen (8): x86/sgx: Add /sys/kernel/debug/x86/sgx_total_mem selftests/sgx: Assign source for each segment selftests/sgx: Make data measurement for an enclave segment optional selftests/sgx: Create a heap for the test enclave selftests/sgx: Dump segments and /proc/self/maps only on failure selftests/sgx: Encpsulate the test enclave creation selftests/sgx: Move setup_test_encl() to each TEST_F() selftests/sgx: Add a new kselftest: unclobbered_vdso_oversubscribed Documentation/x86/sgx.rst | 6 ++ arch/x86/kernel/cpu/sgx/main.c | 10 +- tools/testing/selftests/sgx/load.c | 40 ++++++-- tools/testing/selftests/sgx/main.c | 129 ++++++++++++++++++++---- tools/testing/selftests/sgx/main.h | 7 +- tools/testing/selftests/sgx/sigstruct.c | 12 ++- 6 files changed, 165 insertions(+), 39 deletions(-) -- 2.32.0

4 years, 2 months

1
9
0 0

[PATCH bpf-next v5 0/5] sockmap: add sockmap support for unix stream socket

by Jiang Wang

This patch series add support for unix stream type for sockmap. Sockmap already supports TCP, UDP, unix dgram types. The unix stream support is similar to unix dgram. Also add selftests for unix stream type in sockmap tests. Jiang Wang (5): af_unix: add read_sock for stream socket types af_unix: add unix_stream_proto for sockmap selftest/bpf: add tests for sockmap with unix stream type. selftest/bpf: change udp to inet in some function names selftest/bpf: add new tests in sockmap for unix stream to tcp. include/net/af_unix.h | 8 +- net/unix/af_unix.c | 87 ++++++++++++++--- net/unix/unix_bpf.c | 93 ++++++++++++++----- .../selftests/bpf/prog_tests/sockmap_listen.c | 48 ++++++---- 4 files changed, 184 insertions(+), 52 deletions(-) v1 -> v2 : - Call unhash in shutdown. - Clean up unix_create1 a bit. - Return -ENOTCONN if socket is not connected. v2 -> v3 : - check for stream type in update_proto - remove intermediate variable in __unix_stream_recvmsg - fix compile warning in unix_stream_recvmsg v3 -> v4 : - remove sk_is_unix_stream, just check TCP_ESTABLISHED for UNIX sockets. - add READ_ONCE in unix_dgram_recvmsg - remove type check in unix_stream_bpf_update_proto v4 -> v5 : - add two missing READ_ONCE for sk_prot. -- 2.20.1

4 years, 2 months

1
5
0 0

{Spam?} Z. HD,Sehr geehrte / r Fondsempfänger

by ANWALT BILBAO &EMMA ASSOZIIERT & CO...

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4 years, 2 months

1
0
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[PATCH bpf-next v4 0/5] sockmap: add sockmap support for unix stream socket

by Jiang Wang

This patch series add support for unix stream type for sockmap. Sockmap already supports TCP, UDP, unix dgram types. The unix stream support is similar to unix dgram. Also add selftests for unix stream type in sockmap tests. Jiang Wang (5): af_unix: add read_sock for stream socket types af_unix: add unix_stream_proto for sockmap selftest/bpf: add tests for sockmap with unix stream type. selftest/bpf: change udp to inet in some function names selftest/bpf: add new tests in sockmap for unix stream to tcp. include/net/af_unix.h | 8 +- net/unix/af_unix.c | 86 ++++++++++++++--- net/unix/unix_bpf.c | 93 ++++++++++++++----- .../selftests/bpf/prog_tests/sockmap_listen.c | 48 ++++++---- 4 files changed, 183 insertions(+), 52 deletions(-) v1 -> v2 : - Call unhash in shutdown. - Clean up unix_create1 a bit. - Return -ENOTCONN if socket is not connected. v2 -> v3 : - check for stream type in update_proto - remove intermediate variable in __unix_stream_recvmsg - fix compile warning in unix_stream_recvmsg v3 -> v4 : - remove sk_is_unix_stream, just check TCP_ESTABLISHED for UNIX sockets. - add READ_ONCE in unix_dgram_recvmsg - remove type check in unix_stream_bpf_update_proto -- 2.20.1

4 years, 2 months

2
6
0 0

[RFC][PATCH v2 00/12] integrity: Introduce DIGLIM

by Roberto Sassu

This patch set depends on: - https://lore.kernel.org/linux-integrity/20210723085304.1760138-1-roberto.sa… - https://lore.kernel.org/linux-integrity/20210705115650.3373599-1-roberto.sa… I still kept pointer math to optimize the size of the digest_list_item_ref structure. Replacing offsets with pointers would cause the size of the structure to double. I could do this in the next version of the patch set if the size change is acceptable. Digest Lists Integrity Module (DIGLIM) is a new component added to the integrity subsystem in the kernel, primarily aiming to aid Integrity Measurement Architecture (IMA) in the process of checking the integrity of file content and metadata. It accomplishes this task by storing reference values coming from software vendors and by reporting whether or not the digest of file content or metadata calculated by IMA (or EVM) is found among those values. In this way, IMA can decide, depending on the result of a query, if a measurement should be taken or access to the file should be granted. The Security Assumptions section explains more in detail why this component has been placed in the kernel. The main benefits of using IMA in conjunction with DIGLIM are the ability to implement advanced remote attestation schemes based on the usage of a TPM key for establishing a TLS secure channel [1][2], and to reduce the burden on Linux distribution vendors to extend secure boot at OS level to applications. DIGLIM does not have the complexity of feature-rich databases. In fact, its main functionality comes from the hash table primitives already in the kernel. It does not have an ad-hoc storage module, it just indexes data in a fixed format (digest lists, a set of concatenated digests preceded by a header), copied to kernel memory as they are. Lastly, it does not support database-oriented languages such as SQL, but only accepts a digest and its algorithm as a query. The only digest list format supported by DIGLIM is called compact. However, Linux distribution vendors don't have to generate new digest lists in this format for the packages they release, as already available information, such as RPM headers and DEB package metadata, can be already used as a source for reference values (they already include file digests), with a user space parser taking care of the conversion to the compact format. Although one might perceive that storing file or metadata digests for a Linux distribution would significantly increase the memory usage, this does not seem to be the case. As an anticipation of the evaluation done in the Preliminary Performance Evaluation section, protecting binaries and shared libraries of a minimal Fedora 33 installation requires 208K of memory for the digest lists plus 556K for indexing. In exchange for a slightly increased memory usage, DIGLIM improves the performance of the integrity subsystem. In the considered scenario, IMA measurement and appraisal with digest lists requires respectively less than one quarter and less than half the time, compared to the current solution. DIGLIM also keeps track of whether digest lists have been processed in some way (e.g. measured or appraised by IMA). This is important for example for remote attestation, so that remote verifiers understand what has been uploaded to the kernel. DIGLIM behaves like a transactional database, i.e. it has the ability to roll back to the beginning of the transaction if an error occurred during the addition of a digest list (the deletion operation always succeeds). This capability has been tested with an ad-hoc fault injection mechanism capable of simulating failures during the operations. Finally, DIGLIM exposes to user space, through securityfs, the digest lists currently loaded, the number of digests added, a query interface and an interface to set digest list labels. [1] LSS EU 2019 - slides: https://static.sched.com/hosted_files/lsseu2019/bd/secure_attested_communic… - video: https://youtu.be/mffdQgkvDNY [2] FutureTPM EU project, final review meeting demo - slides: https://futuretpm.eu/images/07-3-FutureTPM-Final-Review-Slides-WP6-Device-M… - video: https://vimeo.com/528251864/4c1d55abcd Binary Integrity Integrity is a fundamental security property in information systems. Integrity could be described as the condition in which a generic component is just after it has been released by the entity that created it. One way to check whether a component is in this condition (called binary integrity) is to calculate its digest and to compare it with a reference value (i.e. the digest calculated in controlled conditions, when the component is released). IMA, a software part of the integrity subsystem, can perform such evaluation and execute different actions: - store the digest in an integrity-protected measurement list, so that it can be sent to a remote verifier for analysis; - compare the calculated digest with a reference value (usually protected with a signature) and deny operations if the file is found corrupted; - store the digest in the system log. Contribution DIGLIM further enhances the capabilities offered by IMA-based solutions and, at the same time, makes them more practical to adopt by reusing existing sources as reference values for integrity decisions. Possible sources for digest lists are: - RPM headers; - Debian repository metadata. Benefits for IMA Measurement One of the issues that arises when files are measured by the OS is that, due to parallel execution, the order in which file accesses happen cannot be predicted. Since the TPM Platform Configuration Register (PCR) extend operation, executed after each file measurement, cryptographically binds the current measurement to the previous ones, the PCR value at the end of a workload cannot be predicted too. Thus, even if the usage of a TPM key, bound to a PCR value, should be allowed when only good files were accessed, the TPM could unexpectedly deny an operation on that key if files accesses did not happen as stated by the key policy (which allows only one of the possible sequences). DIGLIM solves this issue by making the PCR value stable over the time and not dependent on file accesses. The following figure depicts the current and the new approaches: IMA measurement list (current) entry# 1st boot 2nd boot 3rd boot +----+---------------+ +----+---------------+ +----+---------------+ 1: | 10 | file1 measur. | | 10 | file3 measur. | | 10 | file2 measur. | +----+---------------+ +----+---------------+ +----+---------------+ 2: | 10 | file2 measur. | | 10 | file2 measur. | | 10 | file3 measur. | +----+---------------+ +----+---------------+ +----+---------------+ 3: | 10 | file3 measur. | | 10 | file1 measur. | | 10 | file4 measur. | +----+---------------+ +----+---------------+ +----+---------------+ PCR: Extend != Extend != Extend file1, file2, file3 file3, file2, file1 file2, file3, file4 PCR Extend definition: PCR(new value) = Hash(Hash(meas. entry), PCR(previous value)) A new entry in the measurement list is created by IMA for each file access. Assuming that file1, file2 and file3 are files provided by the software vendor, file4 is an unknown file, the first two PCR values above represent a good system state, the third a bad system state. The PCR values are the result of the PCR extend operation performed for each measurement entry with the digest of the measurement entry as an input. IMA measurement list (with DIGLIM) dlist +--------------+ | header | +--------------+ | file1 digest | | file2 digest | | file3 digest | +--------------+ dlist is a digest list containing the digest of file1, file2 and file3. In the intended scenario, it is generated by a software vendor at the end of the building process, and retrieved by the administrator of the system where the digest list is loaded. entry# 1st boot 2nd boot 3rd boot +----+---------------+ +----+---------------+ +----+---------------+ 0: | 11 | dlist measur. | | 11 | dlist measur. | | 11 | dlist measur. | +----+---------------+ +----+---------------+ +----+---------------+ 1: < file1 measur. skip > < file3 measur. skip > < file2 measur. skip > 2: < file2 measur. skip > < file2 measur. skip > < file3 measur. skip > +----+---------------+ 3: < file3 measur. skip > < file1 measur. skip > | 11 | file4 measur. | +----+---------------+ PCR: Extend = Extend != Extend dlist dlist dlist, file4 The first entry in the measurement list contains the digest of the digest list uploaded to the kernel at kernel initialization time. When a file is accessed, IMA queries DIGLIM with the calculated file digest and, if it is found, IMA skips the measurement. Thus, the only information sent to remote verifiers are: the list of files that could possibly be accessed (from the digest list), but not if they were accessed and when; the measurement of unknown files. Despite providing less information, this solution has the advantage that the good system state (i.e. when only file1, file2 and file3 are accessed) now can be represented with a deterministic PCR value (the PCR is extended only with the measurement of the digest list). Also, the bad system state can still be distinguished from the good state (the PCR is extended also with the measurement of file4). If a TPM key is bound to the good PCR value, the TPM would allow the key to be used if file1, file2 or file3 are accessed, regardless of the sequence in which they are accessed (the PCR value does not change), and would revoke the permission when the unknown file4 is accessed (the PCR value changes). If a system is able to establish a TLS connection with a peer, this implicitly means that the system was in a good state (i.e. file4 was not accessed, otherwise the TPM would have denied the usage of the TPM key due to the key policy). Benefits for IMA Appraisal Extending secure boot to applications means being able to verify the provenance of files accessed. IMA does it by verifying file signatures with a key that it trusts, which requires Linux distribution vendors to additionally include in the package header a signature for each file that must be verified (there is the dedicated RPMTAG_FILESIGNATURES section in the RPM header). The proposed approach would be instead to verify data provenance from already available metadata (file digests) in existing packages. IMA would verify the signature of package metadata and search file digests extracted from package metadata and added to the hash table in the kernel. For RPMs, file digests can be found in the RPMTAG_FILEDIGESTS section of RPMTAG_IMMUTABLE, whose signature is in RPMTAG_RSAHEADER. For DEBs, file digests (unsafe to use due to a weak digest algorithm) can be found in the md5sum file, which can be indirectly verified from Release.gpg. The following figure highlights the differences between the current and the proposed approach. IMA appraisal (current solution, with file signatures): appraise +-----------+ V | +-------------------------+-----+ +-------+-----+ | | RPM header | | ima rpm | file1 | sig | | | ... | | plugin +-------+-----+ +-----+ | file1 sig [to be added] | sig |--------> ... | IMA | | ... | | +-------+-----+ +-----+ | fileN sig [to be added] | | | fileN | sig | +-------------------------+-----+ +-------+-----+ In this case, file signatures must be added to the RPM header, so that the ima rpm plugin can extract them together with the file content. The RPM header signature is not used. IMA appraisal (with DIGLIM): kernel hash table with RPM header content +---+ +--------------+ | |--->| file1 digest | +---+ +--------------+ ... +---+ appraise (file1) | | <--------------+ +----------------+-----+ +---+ | | RPM header | | ^ | | ... | | digest_list | | | file1 digest | sig | rpm plugin | +-------+ +-----+ | ... | |-------------+--->| file1 | | IMA | | fileN digest | | +-------+ +-----+ +----------------+-----+ | ^ | +------------------------------------+ appraise (RPM header) In this case, the RPM header is used as it is, and its signature is used for IMA appraisal. Then, the digest_list rpm plugin executes the user space parser to parse the RPM header and add the extracted digests to an hash table in the kernel. IMA appraisal of the files in the RPM package consists in searching their digest in the hash table. Other than reusing available information as digest list, another advantage is the lower computational overhead compared to the solution with file signatures (only one signature verification for many files and digest lookup, instead of per file signature verification, see Preliminary Performance Evaluation for more details). Lifecycle The lifecycle of DIGLIM is represented in the following figure: Vendor premises (release process with modifications): +------------+ +-----------------------+ +------------------------+ | 1. build a | | 2. generate and sign | | 3. publish the package | | package |-->| a digest list from |-->| and digest list in | | | | packaged files | | a repository | +------------+ +-----------------------+ +------------------------+ | | User premises: | V +---------------------+ +------------------------+ +-----------------+ | 6. use digest lists | | 5. download the digest | | 4. download and | | for measurement |<--| list and upload to |<--| install the | | and/or appraisal | | the kernel | | package | +---------------------+ +------------------------+ +-----------------+ The figure above represents all the steps when a digest list is generated separately. However, as mentioned in Contribution, in most cases existing packages can be already used as a source for digest lists, limiting the effort for software vendors. If, for example, RPMs are used as a source for digest lists, the figure above becomes: Vendor premises (release process without modifications): +------------+ +------------------------+ | 1. build a | | 2. publish the package | | package |-->| in a repository |---------------------+ | | | | | +------------+ +------------------------+ | | | User premises: | V +---------------------+ +------------------------+ +-----------------+ | 5. use digest lists | | 4. extract digest list | | 3. download and | | for measurement |<--| from the package |<--| install the | | and/or appraisal | | and upload to the | | package | | | | kernel | | | +---------------------+ +------------------------+ +-----------------+ Step 4 can be performed with the digest_list rpm plugin and the user space parser, without changes to rpm itself. Security Assumptions As mentioned in the Introduction, DIGLIM will be primarily used in conjunction with IMA to enforce a mandatory policy on all user space processes, including those owned by root. Even root, in a system with a locked-down kernel, cannot affect the enforcement of the mandatory policy or, if changes are permitted, it cannot do so without being detected. Given that the target of the enforcement are user space processes, DIGLIM cannot be placed in the target, as a Mandatory Access Control (MAC) design is required to have the components responsible to enforce the mandatory policy separated from the target. While locking-down a system and limiting actions with a mandatory policy is generally perceived by users as an obstacle, it has noteworthy benefits for the users themselves. First, it would timely block attempts by malicious software to steal or misuse user assets. Although users could query the package managers to detect them, detection would happen after the fact, or it wouldn't happen at all if the malicious software tampered with package managers. With a mandatory policy enforced by the kernel, users would still be able to decide which software they want to be executed except that, unlike package managers, the kernel is not affected by user space processes or root. Second, it might make systems more easily verifiable from outside, due to the limited actions the system allows. When users connect to a server, not only they would be able to verify the server identity, which is already possible with communication protocols like TLS, but also if the software running on that server can be trusted to handle their sensitive data. Adoption A former version of DIGLIM is used in the following OSes: - openEuler 20.09 https://github.com/openeuler-mirror/kernel/tree/openEuler-20.09 - openEuler 21.03 https://github.com/openeuler-mirror/kernel/tree/openEuler-21.03 Originally, DIGLIM was part of IMA (known as IMA Digest Lists). In this version, it has been redesigned as a standalone module with an API that makes its functionality accessible by IMA and, eventually, other subsystems. User Space Support Digest lists can be generated and managed with digest-list-tools: https://github.com/openeuler-mirror/digest-list-tools It includes two main applications: - gen_digest_lists: generates digest lists from files in the filesystem or from the RPM database (more digest list sources can be supported); - manage_digest_lists: converts and uploads digest lists to the kernel. Integration with rpm is done with the digest_list plugin: https://gitee.com/src-openeuler/rpm/blob/master/Add-digest-list-plugin.patch This plugin writes the RPM header and its signature to a file, so that the file is ready to be appraised by IMA, and calls the user space parser to convert and upload the digest list to the kernel. Simple Usage Example (Tested with Fedora 33) 1. Digest list generation (RPM headers and their signature are copied to the specified directory): # mkdir /etc/digest_lists # gen_digest_lists -t file -f rpm+db -d /etc/digest_lists -o add 2. Digest list upload with the user space parser: # manage_digest_lists -p add-digest -d /etc/digest_lists 3. First digest list query: # echo sha256-$(sha256sum /bin/cat) > /sys/kernel/security/integrity/diglim/digest_query # cat /sys/kernel/security/integrity/diglim/digest_query sha256-[...]-0-file_list-rpm-coreutils-8.32-18.fc33.x86_64 (actions: 0): version: 1, algo: sha256, type: 2, modifiers: 1, count: 106, datalen: 3392 4. Second digest list query: # echo sha256-$(sha256sum /bin/zip) > /sys/kernel/security/integrity/diglim/digest_query # cat /sys/kernel/security/integrity/diglim/digest_query sha256-[...]-0-file_list-rpm-zip-3.0-27.fc33.x86_64 (actions: 0): version: 1, algo: sha256, type: 2, modifiers: 1, count: 4, datalen: 128 Preliminary Performance Evaluation This section provides an initial estimation of the overhead introduced by DIGLIM. The estimation has been performed on a Fedora 33 virtual machine with 1447 packages installed. The virtual machine has 16 vCPU (host CPU: AMD Ryzen Threadripper PRO 3955WX 16-Cores) and 2G of RAM (host memory: 64G). The virtual machine also has a vTPM with libtpms and swtpm as backend. After writing the RPM headers to files, the size of the directory containing them is 36M. After converting the RPM headers to the compact digest list, the size of the data being uploaded to the kernel is 3.6M. The time to load the entire RPM database is 0.628s. After loading the digest lists to the kernel, the slab usage due to indexing is (obtained with slab_nomerge in the kernel command line): OBJS ACTIVE USE OBJ SIZE SLABS OBJ/SLAB CACHE SIZE NAME 118144 118144 100% 0,03K 923 128 3692K digest_list_item_ref_cache 102400 102400 100% 0,03K 800 128 3200K digest_item_cache 2646 2646 100% 0,09K 63 42 252K digest_list_item_cache The stats, obtained from the digests_count interface, introduced later, are: Parser digests: 0 File digests: 99100 Metadata digests: 0 Digest list digests: 1423 On this installation, this would be the worst case in which all files are measured and/or appraised, which is currently not recommended without enforcing an integrity policy protecting mutable files. Infoflow LSM is a component to accomplish this task: https://patchwork.kernel.org/project/linux-integrity/cover/20190818235745.1… The first manageable goal of IMA with DIGLIM is to use an execution policy, with measurement and/or appraisal of files executed or mapped in memory as executable (in addition to kernel modules and firmware). In this case, the digest list contains the digest only for those files. The numbers above change as follows. After converting the RPM headers to the compact digest list, the size of the data being uploaded to the kernel is 208K. The time to load the digest of binaries and shared libraries is 0.062s. After loading the digest lists to the kernel, the slab usage due to indexing is: OBJS ACTIVE USE OBJ SIZE SLABS OBJ/SLAB CACHE SIZE NAME 7168 7168 100% 0,03K 56 128 224K digest_list_item_ref_cache 7168 7168 100% 0,03K 56 128 224K digest_item_cache 1134 1134 100% 0,09K 27 42 108K digest_list_item_cache The stats, obtained from the digests_count interface, are: Parser digests: 0 File digests: 5986 Metadata digests: 0 Digest list digests: 1104 Comparison with IMA This section compares the performance between the current solution for IMA measurement and appraisal, and IMA with DIGLIM. Workload A (without DIGLIM): 1. cat file[0-5985] > /dev/null Workload B (with DIGLIM): 1. echo $PWD/0-file_list-compact-file[0-1103] > <securityfs>/integrity/diglim/digest_list_add 2. cat file[0-5985] > /dev/null Workload A execution time without IMA policy: real 0m0,155s user 0m0,008s sys 0m0,066s Measurement IMA policy: measure fowner=2000 func=FILE_CHECK mask=MAY_READ use_diglim=allow pcr=11 ima_template=ima-sig use_diglim is a policy keyword not yet supported by IMA. Workload A execution time with IMA and 5986 files with signature measured: real 0m8,273s user 0m0,008s sys 0m2,537s Workload B execution time with IMA, 1104 digest lists with signature measured and uploaded to the kernel, and 5986 files with signature accessed but not measured (due to the file digest being found in the hash table): real 0m1,837s user 0m0,036s sys 0m0,583s Appraisal IMA policy: appraise fowner=2000 func=FILE_CHECK mask=MAY_READ use_diglim=allow use_diglim is a policy keyword not yet supported by IMA. Workload A execution time with IMA and 5986 files with file signature appraised: real 0m2,197s user 0m0,011s sys 0m2,022s Workload B execution time with IMA, 1104 digest lists with signature appraised and uploaded to the kernel, and with 5986 files with signature not verified (due to the file digest being found in the hash table): real 0m0,982s user 0m0,020s sys 0m0,865s Changelog v1: - remove 'ima: Add digest, algo, measured parameters to ima_measure_critical_data()', replaced by: https://lore.kernel.org/linux-integrity/20210705090922.3321178-1-roberto.sa… - add 'Lifecycle' subsection to better clarify how digest lists are generated and used (suggested by Greg KH) - remove 'Possible Usages' subsection and add 'Benefits for IMA Measurement' and 'Benefits for IMA Appraisal' subsubsections - add 'Preliminary Performance Evaluation' subsection - declare digest_offset and hdr_offset in the digest_list_item_ref structure as u32 (sufficient for digest lists of 4G) to make room for a list_head structure (digest_list_item_ref size: 32) - implement digest list reference management with a linked list instead of an array - reorder structure members for better alignment (suggested by Mauro) - rename digest_lookup() to __digest_lookup() (suggested by Mauro) - introduce an object cache for each defined structure - replace atomic_long_t with unsigned long in h_table structure definition (suggested by Greg KH) - remove GPL2 license text and file names (suggested by Greg KH) - ensure that the _reserved field of compact_list_hdr is equal to zero (suggested by Greg KH) - dynamically allocate the buffer in digest_lists_show_htable_len() to avoid frame size warning (reported by kernel test robot, dynamic allocation suggested by Mauro) - split documentation in multiple files and reference the source code (suggested by Mauro) - use #ifdef in include/linux/diglim.h - improve generation of event name for IMA measurements - add new patch to introduce the 'Remote Attestation' section in the documentation - fix assignment of actions variable in digest_list_read() and digest_list_write() - always release dentry reference when digest_list_get_secfs_files() is called - rewrite add/del and query interfaces to take advantage of m->private - prevent deletion of a digest list only if there are actions done at addition time that are not currently being performed - fix doc warnings (replace Returns with Return:) - perform queries of digest list digests in the existing tests - add new tests: digest_list_add_del_test_file_upload_measured, digest_list_check_measurement_list_test_file_upload and digest_list_check_measurement_list_test_buffer_upload - don't return a value from digest_del(), digest_list_ref_del, and digest_list_del() - improve Makefile for tests Roberto Sassu (12): diglim: Overview diglim: Basic definitions diglim: Objects diglim: Methods diglim: Parser diglim: Interfaces - digest_list_add, digest_list_del diglim: Interfaces - digest_lists_loaded diglim: Interfaces - digest_label diglim: Interfaces - digest_query diglim: Interfaces - digests_count diglim: Remote Attestation diglim: Tests .../security/diglim/architecture.rst | 45 + .../security/diglim/implementation.rst | 255 +++ Documentation/security/diglim/index.rst | 14 + .../security/diglim/introduction.rst | 631 ++++++++ .../security/diglim/remote_attestation.rst | 87 ++ Documentation/security/diglim/tests.rst | 66 + Documentation/security/index.rst | 1 + MAINTAINERS | 19 + include/linux/diglim.h | 28 + include/linux/kernel_read_file.h | 1 + include/uapi/linux/diglim.h | 51 + security/integrity/Kconfig | 1 + security/integrity/Makefile | 1 + security/integrity/diglim/Kconfig | 11 + security/integrity/diglim/Makefile | 8 + security/integrity/diglim/diglim.h | 157 ++ security/integrity/diglim/fs.c | 782 ++++++++++ security/integrity/diglim/methods.c | 499 ++++++ security/integrity/diglim/parser.c | 274 ++++ security/integrity/integrity.h | 4 + tools/testing/selftests/Makefile | 1 + tools/testing/selftests/diglim/Makefile | 19 + tools/testing/selftests/diglim/common.c | 115 ++ tools/testing/selftests/diglim/common.h | 31 + tools/testing/selftests/diglim/config | 3 + tools/testing/selftests/diglim/selftest.c | 1382 +++++++++++++++++ 26 files changed, 4486 insertions(+) create mode 100644 Documentation/security/diglim/architecture.rst create mode 100644 Documentation/security/diglim/implementation.rst create mode 100644 Documentation/security/diglim/index.rst create mode 100644 Documentation/security/diglim/introduction.rst create mode 100644 Documentation/security/diglim/remote_attestation.rst create mode 100644 Documentation/security/diglim/tests.rst create mode 100644 include/linux/diglim.h create mode 100644 include/uapi/linux/diglim.h create mode 100644 security/integrity/diglim/Kconfig create mode 100644 security/integrity/diglim/Makefile create mode 100644 security/integrity/diglim/diglim.h create mode 100644 security/integrity/diglim/fs.c create mode 100644 security/integrity/diglim/methods.c create mode 100644 security/integrity/diglim/parser.c create mode 100644 tools/testing/selftests/diglim/Makefile create mode 100644 tools/testing/selftests/diglim/common.c create mode 100644 tools/testing/selftests/diglim/common.h create mode 100644 tools/testing/selftests/diglim/config create mode 100644 tools/testing/selftests/diglim/selftest.c -- 2.25.1

4 years, 2 months

4
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[PATCH] selftest/lkdtm: Skip stack-entropy test if lkdtm is not available

by Misono Tomohiro

Exit with return code 4 if lkdtm is not available like other tests in order to properly skip the test. Signed-off-by: Misono Tomohiro <misono.tomohiro(a)jp.fujitsu.com> --- I saw the same problem reported here (on 5.14-rc4): https://lore.kernel.org/lkml/2836f48a-d4e2-7f00-f06c-9f556fbd6332@linuxfoun… tools/testing/selftests/lkdtm/stack-entropy.sh | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/lkdtm/stack-entropy.sh b/tools/testing/selftests/lkdtm/stack-entropy.sh index 1b4d95d575f8..14fedeef762e 100755 --- a/tools/testing/selftests/lkdtm/stack-entropy.sh +++ b/tools/testing/selftests/lkdtm/stack-entropy.sh @@ -4,13 +4,27 @@ # Measure kernel stack entropy by sampling via LKDTM's REPORT_STACK test. set -e samples="${1:-1000}" +TRIGGER=/sys/kernel/debug/provoke-crash/DIRECT +KSELFTEST_SKIP_TEST=4 + +# Verify we have LKDTM available in the kernel. +if [ ! -r $TRIGGER ] ; then + /sbin/modprobe -q lkdtm || true + if [ ! -r $TRIGGER ] ; then + echo "Cannot find $TRIGGER (missing CONFIG_LKDTM?)" + else + echo "Cannot write $TRIGGER (need to run as root?)" + fi + # Skip this test + exit $KSELFTEST_SKIP_TEST +fi # Capture dmesg continuously since it may fill up depending on sample size. log=$(mktemp -t stack-entropy-XXXXXX) dmesg --follow >"$log" & pid=$! report=-1 for i in $(seq 1 $samples); do - echo "REPORT_STACK" >/sys/kernel/debug/provoke-crash/DIRECT + echo "REPORT_STACK" > $TRIGGER if [ -t 1 ]; then percent=$(( 100 * $i / $samples )) if [ "$percent" -ne "$report" ]; then -- 2.31.1

4 years, 2 months

1
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[PATCH v4 2/3] kunit: Add support for suite initialization and cleanup

by Bart Van Assche

A common feature of unit testing frameworks is support for sharing a test configuration across multiple unit tests. Add this functionality to the KUnit framework. This functionality will be used in the next patch in this series. Reviewed-by: Brendan Higgins <brendanhiggins(a)google.com> Cc: David Gow <davidgow(a)google.com> Cc: Shuah Khan <skhan(a)linuxfoundation.org> Cc: kunit-dev(a)googlegroups.com Cc: linux-kselftest(a)vger.kernel.org Cc: Bodo Stroesser <bostroesser(a)gmail.com> Cc: Martin K. Petersen <martin.petersen(a)oracle.com> Cc: Yanko Kaneti <yaneti(a)declera.com> Signed-off-by: Bart Van Assche <bvanassche(a)acm.org> --- include/kunit/test.h | 4 ++++ lib/kunit/test.c | 14 ++++++++++++++ 2 files changed, 18 insertions(+) diff --git a/include/kunit/test.h b/include/kunit/test.h index 24b40e5c160b..a6eef96a409c 100644 --- a/include/kunit/test.h +++ b/include/kunit/test.h @@ -215,6 +215,8 @@ static inline char *kunit_status_to_ok_not_ok(enum kunit_status status) * struct kunit_suite - describes a related collection of &struct kunit_case * * @name: the name of the test. Purely informational. + * @init_suite: called once per test suite before the test cases. + * @exit_suite: called once per test suite after all test cases. * @init: called before every test case. * @exit: called after every test case. * @test_cases: a null terminated array of test cases. @@ -229,6 +231,8 @@ static inline char *kunit_status_to_ok_not_ok(enum kunit_status status) */ struct kunit_suite { const char name[256]; + int (*init_suite)(void); + void (*exit_suite)(void); int (*init)(struct kunit *test); void (*exit)(struct kunit *test); struct kunit_case *test_cases; diff --git a/lib/kunit/test.c b/lib/kunit/test.c index d79ecb86ea57..c271692ced93 100644 --- a/lib/kunit/test.c +++ b/lib/kunit/test.c @@ -397,9 +397,19 @@ int kunit_run_tests(struct kunit_suite *suite) { char param_desc[KUNIT_PARAM_DESC_SIZE]; struct kunit_case *test_case; + int res = 0; kunit_print_subtest_start(suite); + if (suite->init_suite) + res = suite->init_suite(); + + if (res < 0) { + kunit_log(KERN_INFO, suite, KUNIT_SUBTEST_INDENT + "# Suite initialization failed (%d)\n", res); + goto end; + } + kunit_suite_for_each_test_case(suite, test_case) { struct kunit test = { .param_value = NULL, .param_index = 0 }; test_case->status = KUNIT_SKIPPED; @@ -439,6 +449,10 @@ int kunit_run_tests(struct kunit_suite *suite) test.status_comment); } + if (suite->exit_suite) + suite->exit_suite(); + +end: kunit_print_subtest_end(suite); return 0;

4 years, 2 months

1
0
0 0

[RFC PATCH 0/4] TDX KVM selftests

by Erdem Aktas

TDX stands for Trust Domain Extensions which isolates VMs from the virtual-machine manager (VMM)/hypervisor and any other software on the platform. Intel has recently submitted a set of RFC patches for KVM support for TDX and more information can be found on the latest TDX Support Patches: https://lkml.org/lkml/2021/7/2/558 Due to the nature of the confidential computing environment that TDX provides, it is very difficult to verify/test the KVM support. TDX requires UEFI and the guest kernel to be enlightened which are all under development. We are working on a set of selftests to close this gap and be able to verify the KVM functionality to support TDX lifecycle and GHCI [1] interface. We are looking for any feedback on: - Patch series itself - Any suggestion on how we should approach testing TDX functionality. Does selftests seems reasonable or should we switch to using KVM unit tests. I would be happy to get some perspective on how KVM unit tests can help us more. - Any test case or scenario that we should add. - Anything else I have not thought of yet. Current patch series provide the following capabilities: - Provide helper functions to create a TD (Trusted Domain) using the KVM ioctls - Provide helper functions to create a guest image that can include any testing code - Provide helper functions and wrapper functions to write testing code using GHCI interface - Add a test case that verifies TDX life cycle - Add a test case that verifies TDX GHCI port IO TODOs: - Use existing function to create page tables dynamically (ie __virt_pg_map()) - Remove arbitrary defined magic numbers for data structure offsets - Add TDVMCALL for error reporting - Add additional test cases as some listed below - Add #VE handlers to help testing more complicated test cases Other test cases that we are planning to add: (with credit to sagis(a)google.com) VM call interface Input Output Result GetTdVmCallInfo R12=0 None VMCALL_SUCCESS MapGPA Map private page (GPA.S=0) VMCALL_SUCCESS MapGPA Map shared page (GPA.S=1) VMCALL_SUCCESS MapGPA Map already private page as private VMCALL_INVALID_OPERAND MapGPA Map already shared page as shared VMCALL_INVALID_OPERAND GetQuote ReportFatalError SetupEventNotifyInterrupt Valid interrupt value (32:255) VMCALL_SUCCESS SetupEventNotifyInterrupt Invalid value (>255) VMCALL_INVALID_OPERAND Instruction.CPUID R12(EAX)=1, R13(ECX)=0 EBX[8:15]=0x8 EBX[16:23]=X EBX[24:31]=vcpu_id ECX[0]=1 ECX[12]=Y Instruction.CPUID R12(EAX)=1, R13(ECX)=4 VMCALL_INVALID_OPERAND VE.RequestMMIO Instruction.HLT VMCALL_SUCCESS Instruction.IO Read/Write 1/2/4 bytes VMCALL_SUCCESS Instruction.IO Read/Write 3 bytes VMCALL_INVALID_OPERAND Instruction.RDMSR Accessible register R11=msr_value VMCALL_SUCCESS Inaccessible register VMCALL_INVALID_OPERAND Instruction.RDMSR Accessible register VMCALL_SUCCESS Inaccessible register VMCALL_INVALID_OPERAND INSTRUCTION.PCONFIG [1] Intel TDX Guest-Hypervisor Communication Interface https://software.intel.com/content/dam/develop/external/us/en/documents/int… Erdem Aktas (4): KVM: selftests: Add support for creating non-default type VMs KVM: selftest: Add helper functions to create TDX VMs KVM: selftest: Adding TDX life cycle test. KVM: selftest: Adding test case for TDX port IO tools/testing/selftests/kvm/Makefile | 6 +- .../testing/selftests/kvm/include/kvm_util.h | 1 + .../selftests/kvm/include/x86_64/processor.h | 5 + tools/testing/selftests/kvm/lib/kvm_util.c | 29 +- .../selftests/kvm/lib/x86_64/processor.c | 23 ++ tools/testing/selftests/kvm/lib/x86_64/tdx.h | 220 ++++++++++++ .../selftests/kvm/lib/x86_64/tdx_lib.c | 314 ++++++++++++++++++ .../selftests/kvm/x86_64/tdx_vm_tests.c | 209 ++++++++++++ 8 files changed, 800 insertions(+), 7 deletions(-) create mode 100644 tools/testing/selftests/kvm/lib/x86_64/tdx.h create mode 100644 tools/testing/selftests/kvm/lib/x86_64/tdx_lib.c create mode 100644 tools/testing/selftests/kvm/x86_64/tdx_vm_tests.c -- 2.32.0.432.gabb21c7263-goog

4 years, 3 months

7
16
0 0

[PATCH bpf-next v3 0/5] sockmap: add sockmap support for unix stream socket

by Jiang Wang

This patch series add support for unix stream type for sockmap. Sockmap already supports TCP, UDP, unix dgram types. The unix stream support is similar to unix dgram. Also add selftests for unix stream type in sockmap tests. Jiang Wang (5): af_unix: add read_sock for stream socket types af_unix: add unix_stream_proto for sockmap selftest/bpf: add tests for sockmap with unix stream type. selftest/bpf: change udp to inet in some function names selftest/bpf: add new tests in sockmap for unix stream to tcp. include/net/af_unix.h | 8 +- net/core/sock_map.c | 8 +- net/unix/af_unix.c | 86 ++++++++++++++--- net/unix/unix_bpf.c | 96 ++++++++++++++----- .../selftests/bpf/prog_tests/sockmap_listen.c | 48 ++++++---- 5 files changed, 193 insertions(+), 53 deletions(-) v1 -> v2 : - Call unhash in shutdown. - Clean up unix_create1 a bit. - Return -ENOTCONN if socket is not connected. v2 -> v3 : - check for stream type in update_proto - remove intermediate variable in __unix_stream_recvmsg - fix compile warning in unix_stream_recvmsg -- 2.20.1

4 years, 3 months

3
8
0 0

[PATCH v2] KVM: selftests: fix hyperv_clock test

by Maxim Levitsky

The test was mistakenly using addr_gpa2hva on a gva and that happened to work accidentally. commit 106a2e766eae ("KVM: selftests: Lower the min virtual address for misc page allocations") revealed this bug. Fixes: 2c7f76b4c42b ("selftests: kvm: Add basic Hyper-V clocksources tests") Signed-off-by: Maxim Levitsky <mlevitsk(a)redhat.com> --- tools/testing/selftests/kvm/x86_64/hyperv_clock.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/kvm/x86_64/hyperv_clock.c b/tools/testing/selftests/kvm/x86_64/hyperv_clock.c index bab10ae787b6..e0b2bb1339b1 100644 --- a/tools/testing/selftests/kvm/x86_64/hyperv_clock.c +++ b/tools/testing/selftests/kvm/x86_64/hyperv_clock.c @@ -215,7 +215,7 @@ int main(void) vcpu_set_hv_cpuid(vm, VCPU_ID); tsc_page_gva = vm_vaddr_alloc_page(vm); - memset(addr_gpa2hva(vm, tsc_page_gva), 0x0, getpagesize()); + memset(addr_gva2hva(vm, tsc_page_gva), 0x0, getpagesize()); TEST_ASSERT((addr_gva2gpa(vm, tsc_page_gva) & (getpagesize() - 1)) == 0, "TSC page has to be page aligned\n"); vcpu_args_set(vm, VCPU_ID, 2, tsc_page_gva, addr_gva2gpa(vm, tsc_page_gva)); -- 2.26.3

4 years, 3 months

1
0
0 0

[PATCH] KVM: selftests: fix hyperv_clock test

by Maxim Levitsky

The test was mistakenly using addr_gpa2hva on a gva and that happened to work accidentally. commit 106a2e766eae ("KVM: selftests: Lower the min virtual address for misc page allocations") revealed this bug. Fixes: 106a2e766eae ("KVM: selftests: Lower the min virtual address for misc page allocations") Signed-off-by: Maxim Levitsky <mlevitsk(a)redhat.com> --- tools/testing/selftests/kvm/x86_64/hyperv_clock.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/kvm/x86_64/hyperv_clock.c b/tools/testing/selftests/kvm/x86_64/hyperv_clock.c index bab10ae787b6..e0b2bb1339b1 100644 --- a/tools/testing/selftests/kvm/x86_64/hyperv_clock.c +++ b/tools/testing/selftests/kvm/x86_64/hyperv_clock.c @@ -215,7 +215,7 @@ int main(void) vcpu_set_hv_cpuid(vm, VCPU_ID); tsc_page_gva = vm_vaddr_alloc_page(vm); - memset(addr_gpa2hva(vm, tsc_page_gva), 0x0, getpagesize()); + memset(addr_gva2hva(vm, tsc_page_gva), 0x0, getpagesize()); TEST_ASSERT((addr_gva2gpa(vm, tsc_page_gva) & (getpagesize() - 1)) == 0, "TSC page has to be page aligned\n"); vcpu_args_set(vm, VCPU_ID, 2, tsc_page_gva, addr_gva2gpa(vm, tsc_page_gva)); -- 2.26.3

4 years, 3 months

2
2
0 0

[PATCH net-next] tc-testing: Add control-plane selftests for sch_mq

by Peilin Ye

From: Peilin Ye <peilin.ye(a)bytedance.com> Recently we added multi-queue support to netdevsim in commit d4861fc6be58 ("netdevsim: Add multi-queue support"); add a few control-plane selftests for sch_mq using this new feature. Use nsPlugin.py to avoid network interface name collisions. Reviewed-by: Cong Wang <cong.wang(a)bytedance.com> Signed-off-by: Peilin Ye <peilin.ye(a)bytedance.com> --- Hi all, Here are some control-plane selftests for the mq Qdisc using netdevsim's new multi-queue feature. We are planning to add more data-plane selftests in the future. Thank you, Peilin Ye .../tc-testing/tc-tests/qdiscs/mq.json | 137 ++++++++++++++++++ .../selftests/tc-testing/tdc_config.py | 1 + 2 files changed, 138 insertions(+) create mode 100644 tools/testing/selftests/tc-testing/tc-tests/qdiscs/mq.json diff --git a/tools/testing/selftests/tc-testing/tc-tests/qdiscs/mq.json b/tools/testing/selftests/tc-testing/tc-tests/qdiscs/mq.json new file mode 100644 index 000000000000..88a20c781e49 --- /dev/null +++ b/tools/testing/selftests/tc-testing/tc-tests/qdiscs/mq.json @@ -0,0 +1,137 @@ +[ + { + "id": "ce7d", + "name": "Add mq Qdisc to multi-queue device (4 queues)", + "category": [ + "qdisc", + "mq" + ], + "plugins": { + "requires": "nsPlugin" + }, + "setup": [ + "echo \"1 1 4\" > /sys/bus/netdevsim/new_device" + ], + "cmdUnderTest": "$TC qdisc add dev $ETH root handle 1: mq", + "expExitCode": "0", + "verifyCmd": "$TC qdisc show dev $ETH", + "matchPattern": "qdisc pfifo_fast 0: parent 1:[1-4] bands 3 priomap 1 2 2 2 1 2 0 0 1 1 1 1 1 1 1 1", + "matchCount": "4", + "teardown": [ + "echo \"1\" > /sys/bus/netdevsim/del_device" + ] + }, + { + "id": "2f82", + "name": "Add mq Qdisc to multi-queue device (256 queues)", + "category": [ + "qdisc", + "mq" + ], + "plugins": { + "requires": "nsPlugin" + }, + "setup": [ + "echo \"1 1 256\" > /sys/bus/netdevsim/new_device" + ], + "cmdUnderTest": "$TC qdisc add dev $ETH root handle 1: mq", + "expExitCode": "0", + "verifyCmd": "$TC qdisc show dev $ETH", + "matchPattern": "qdisc pfifo_fast 0: parent 1:[1-9,a-f][0-9,a-f]{0,2} bands 3 priomap 1 2 2 2 1 2 0 0 1 1 1 1 1 1 1 1", + "matchCount": "256", + "teardown": [ + "echo \"1\" > /sys/bus/netdevsim/del_device" + ] + }, + { + "id": "c525", + "name": "Add duplicate mq Qdisc", + "category": [ + "qdisc", + "mq" + ], + "plugins": { + "requires": "nsPlugin" + }, + "setup": [ + "echo \"1 1 4\" > /sys/bus/netdevsim/new_device", + "$TC qdisc add dev $ETH root handle 1: mq" + ], + "cmdUnderTest": "$TC qdisc add dev $ETH root handle 1: mq", + "expExitCode": "2", + "verifyCmd": "$TC qdisc show dev $ETH", + "matchPattern": "qdisc pfifo_fast 0: parent 1:[1-4] bands 3 priomap 1 2 2 2 1 2 0 0 1 1 1 1 1 1 1 1", + "matchCount": "4", + "teardown": [ + "echo \"1\" > /sys/bus/netdevsim/del_device" + ] + }, + { + "id": "128a", + "name": "Delete nonexistent mq Qdisc", + "category": [ + "qdisc", + "mq" + ], + "plugins": { + "requires": "nsPlugin" + }, + "setup": [ + "echo \"1 1 4\" > /sys/bus/netdevsim/new_device" + ], + "cmdUnderTest": "$TC qdisc del dev $ETH root handle 1: mq", + "expExitCode": "2", + "verifyCmd": "$TC qdisc show dev $ETH", + "matchPattern": "qdisc pfifo_fast 0: parent 1:[1-4] bands 3 priomap 1 2 2 2 1 2 0 0 1 1 1 1 1 1 1 1", + "matchCount": "0", + "teardown": [ + "echo \"1\" > /sys/bus/netdevsim/del_device" + ] + }, + { + "id": "03a9", + "name": "Delete mq Qdisc twice", + "category": [ + "qdisc", + "mq" + ], + "plugins": { + "requires": "nsPlugin" + }, + "setup": [ + "echo \"1 1 4\" > /sys/bus/netdevsim/new_device", + "$TC qdisc add dev $ETH root handle 1: mq", + "$TC qdisc del dev $ETH root handle 1: mq" + ], + "cmdUnderTest": "$TC qdisc del dev $ETH root handle 1: mq", + "expExitCode": "2", + "verifyCmd": "$TC qdisc show dev $ETH", + "matchPattern": "qdisc pfifo_fast 0: parent 1:[1-4] bands 3 priomap 1 2 2 2 1 2 0 0 1 1 1 1 1 1 1 1", + "matchCount": "0", + "teardown": [ + "echo \"1\" > /sys/bus/netdevsim/del_device" + ] + }, + { + "id": "be0f", + "name": "Add mq Qdisc to single-queue device", + "category": [ + "qdisc", + "mq" + ], + "plugins": { + "requires": "nsPlugin" + }, + "setup": [ + "echo \"1 1\" > /sys/bus/netdevsim/new_device" + ], + "cmdUnderTest": "$TC qdisc add dev $ETH root handle 1: mq", + "expExitCode": "2", + "verifyCmd": "$TC qdisc show dev $ETH", + "matchPattern": "qdisc pfifo_fast 0: parent 1:[1-4] bands 3 priomap 1 2 2 2 1 2 0 0 1 1 1 1 1 1 1 1", + "matchCount": "0", + "teardown": [ + "echo \"1\" > /sys/bus/netdevsim/del_device" + ] + } +] diff --git a/tools/testing/selftests/tc-testing/tdc_config.py b/tools/testing/selftests/tc-testing/tdc_config.py index cd4a27ee1466..ea04f04c173e 100644 --- a/tools/testing/selftests/tc-testing/tdc_config.py +++ b/tools/testing/selftests/tc-testing/tdc_config.py @@ -17,6 +17,7 @@ NAMES = { 'DEV1': 'v0p1', 'DEV2': '', 'DUMMY': 'dummy1', + 'ETH': 'eth0', 'BATCH_FILE': './batch.txt', 'BATCH_DIR': 'tmp', # Length of time in seconds to wait before terminating a command -- 2.20.1

4 years, 3 months

3
2
0 0

[RFC PATCH v3 0/2] Introduce XSAVE/XRSTOR self-test

by Pengfei Xu

The XSAVE feature set supports the saving and restoring of state components, and XSAVE feature is used for process context switching. The XSAVE state components include x87 state for FPU execution environment, SSE state, AVX state and so on. In order to ensure that XSAVE works correctly, add XSAVE basic test for XSAVE architecture functionality. This patch set tests and verifies the basic functions of XSAVE/XRSTOR in user space; during and after signal handling on the x86 platform, the XSAVE contents of the process should not be changed. This series introduces only the most basic XSAVE tests. In the future, the intention is to continue expanding the scope of these selftests to include more kernel XSAVE-related functionality and XSAVE-managed features like AMX and shadow stacks. Pengfei Xu (2): selftests/xsave: test basic XSAVE architecture functionality selftests/xsave: add xsave test during and after signal handling tools/testing/selftests/Makefile | 1 + tools/testing/selftests/xsave/.gitignore | 3 + tools/testing/selftests/xsave/Makefile | 6 + tools/testing/selftests/xsave/xsave_common.h | 246 ++++++++++++++++++ .../selftests/xsave/xsave_instruction.c | 83 ++++++ .../selftests/xsave/xsave_signal_handle.c | 184 +++++++++++++ 6 files changed, 523 insertions(+) create mode 100644 tools/testing/selftests/xsave/.gitignore create mode 100644 tools/testing/selftests/xsave/Makefile create mode 100644 tools/testing/selftests/xsave/xsave_common.h create mode 100644 tools/testing/selftests/xsave/xsave_instruction.c create mode 100644 tools/testing/selftests/xsave/xsave_signal_handle.c -- 2.20.1

4 years, 3 months

1
2
0 0

[PATCH 0/2] add KSM performance tests

by Zhansaya Bagdauletkyzy

Extend KSM self tests with a performance benchmark. These tests are not part of regular regression testing, as they are mainly intended to be used by developers making changes to the memory management subsystem. Both patches were developed against linux-next. Zhansaya Bagdauletkyzy (2): selftests: vm: add KSM merging time test selftests: vm: add COW time test for KSM pages tools/testing/selftests/vm/ksm_tests.c | 136 ++++++++++++++++++++++++- 1 file changed, 132 insertions(+), 4 deletions(-) -- 2.25.1

4 years, 3 months

2
4
0 0

[PATCH v5 0/4] kselftest/arm64: Vector length configuration tests

by Mark Brown

Currently we don't have full automated tests for the vector length configuation ABIs offered for SVE, we have a helper binary for setting the vector length which can be used for manual tests and we use the prctl() interface to enumerate the vector lengths but don't actually verify that the vector lengths enumerated were set. This patch series provides a small helper which allows us to get the currently configured vector length using the RDVL instruction via either a library call or stdout of a process and then uses this to both add verification of enumerated vector lengths to our existing tests and also add a new test program which exercises both the prctl() and sysfs interfaces. In preparation for the forthcomng support for the Scalable Matrix Extension (SME) [1] which introduces a new vector length managed via a very similar hardware interface the helper and new test program are parameterised with the goal of allowing reuse for SME. [1] https://community.arm.com/developer/ip-products/processors/b/processors-ip-… v5: - Fix a potentially uninialized variable case. - Clarify an error message. - Add TODO. v4: - Fix fscanf() format string handling to properly confirm the newline. - Pull fclose() out of stdio read helper. - Change style of child monitoring loop. v3: - Add BTI landing pads to the asm helper functions. - Clean up pipes used to talk to children. - Remove another unneeded include. - Make functions in the main executable static. - Match the newline when parsing vector length from the child. - Factor out the fscanf() and fclose() from parsing integers from file descriptors. - getauxval() returns unsigned long. v2: - Tweak log message on failure in sve-probe-vls. - Stylistic changes in vec-syscfg. - Flush stdout before forking in vec-syscfg. - Use EXIT_FAILURE. - Use fdopen() to get child output. - Replace a bunch of UNIX API usage with stdio. - Add a TODO list. - Verify that we're root before testing writes to /proc. Mark Brown (4): kselftest/arm64: Provide a helper binary and "library" for SVE RDVL kselftest/arm64: Validate vector lengths are set in sve-probe-vls kselftest/arm64: Add tests for SVE vector configuration kselftest/arm64: Add a TODO list for floating point tests tools/testing/selftests/arm64/fp/.gitignore | 2 + tools/testing/selftests/arm64/fp/Makefile | 11 +- tools/testing/selftests/arm64/fp/TODO | 4 + tools/testing/selftests/arm64/fp/rdvl-sve.c | 14 + tools/testing/selftests/arm64/fp/rdvl.S | 10 + tools/testing/selftests/arm64/fp/rdvl.h | 8 + .../selftests/arm64/fp/sve-probe-vls.c | 5 + tools/testing/selftests/arm64/fp/vec-syscfg.c | 593 ++++++++++++++++++ 8 files changed, 644 insertions(+), 3 deletions(-) create mode 100644 tools/testing/selftests/arm64/fp/TODO create mode 100644 tools/testing/selftests/arm64/fp/rdvl-sve.c create mode 100644 tools/testing/selftests/arm64/fp/rdvl.S create mode 100644 tools/testing/selftests/arm64/fp/rdvl.h create mode 100644 tools/testing/selftests/arm64/fp/vec-syscfg.c base-commit: ff1176468d368232b684f75e82563369208bc371 -- 2.20.1

4 years, 3 months

2
5
0 0

[PATCH v4 0/4] kselftest/arm64: Vector length configuration tests

by Mark Brown

Currently we don't have full automated tests for the vector length configuation ABIs offered for SVE, we have a helper binary for setting the vector length which can be used for manual tests and we use the prctl() interface to enumerate the vector lengths but don't actually verify that the vector lengths enumerated were set. This patch series provides a small helper which allows us to get the currently configured vector length using the RDVL instruction via either a library call or stdout of a process and then uses this to both add verification of enumerated vector lengths to our existing tests and also add a new test program which exercises both the prctl() and sysfs interfaces. In preparation for the forthcomng support for the Scalable Matrix Extension (SME) [1] which introduces a new vector length managed via a very similar hardware interface the helper and new test program are parameterised with the goal of allowing reuse for SME. [1] https://community.arm.com/developer/ip-products/processors/b/processors-ip-… v3: - Add BTI landing pads to the asm helper functions. - Clean up pipes used to talk to children. - Remove another unneeded include. - Make functions in the main executable static. - Match the newline when parsing vector length from the child. - Factor out the fscanf() and fclose() from parsing integers from file descriptors. - getauxval() returns unsigned long. v2: - Tweak log message on failure in sve-probe-vls. - Stylistic changes in vec-syscfg. - Flush stdout before forking in vec-syscfg. - Use EXIT_FAILURE. - Use fdopen() to get child output. - Replace a bunch of UNIX API usage with stdio. - Add a TODO list. - Verify that we're root before testing writes to /proc. Mark Brown (4): kselftest/arm64: Provide a helper binary and "library" for SVE RDVL kselftest/arm64: Validate vector lengths are set in sve-probe-vls kselftest/arm64: Add tests for SVE vector configuration kselftest/arm64: Add a TODO list for floating point tests tools/testing/selftests/arm64/fp/.gitignore | 2 + tools/testing/selftests/arm64/fp/Makefile | 11 +- tools/testing/selftests/arm64/fp/TODO | 3 + tools/testing/selftests/arm64/fp/rdvl-sve.c | 14 + tools/testing/selftests/arm64/fp/rdvl.S | 10 + tools/testing/selftests/arm64/fp/rdvl.h | 8 + .../selftests/arm64/fp/sve-probe-vls.c | 5 + tools/testing/selftests/arm64/fp/vec-syscfg.c | 594 ++++++++++++++++++ 8 files changed, 644 insertions(+), 3 deletions(-) create mode 100644 tools/testing/selftests/arm64/fp/TODO create mode 100644 tools/testing/selftests/arm64/fp/rdvl-sve.c create mode 100644 tools/testing/selftests/arm64/fp/rdvl.S create mode 100644 tools/testing/selftests/arm64/fp/rdvl.h create mode 100644 tools/testing/selftests/arm64/fp/vec-syscfg.c base-commit: ff1176468d368232b684f75e82563369208bc371 -- 2.20.1

4 years, 3 months

2
6
0 0

[PATCH net-next 2/2] tc-testing/ingress: Add control-plane selftests for clsact egress mini-Qdisc option

by Peilin Ye

From: Peilin Ye <peilin.ye(a)bytedance.com> Recently we added a new clsact egress mini-Qdisc option for sch_ingress. Add a few control-plane tdc.py selftests for it. Depends on kernel patch "net/sched: sch_ingress: Support clsact egress mini-Qdisc option", as well as iproute2 patch "tc/ingress: Introduce clsact egress mini-Qdisc option". Reviewed-by: Cong Wang <cong.wang(a)bytedance.com> Signed-off-by: Peilin Ye <peilin.ye(a)bytedance.com> --- .../tc-testing/tc-tests/qdiscs/ingress.json | 84 +++++++++++++++++++ 1 file changed, 84 insertions(+) diff --git a/tools/testing/selftests/tc-testing/tc-tests/qdiscs/ingress.json b/tools/testing/selftests/tc-testing/tc-tests/qdiscs/ingress.json index d99dba6e2b1a..2cde11b2ea9b 100644 --- a/tools/testing/selftests/tc-testing/tc-tests/qdiscs/ingress.json +++ b/tools/testing/selftests/tc-testing/tc-tests/qdiscs/ingress.json @@ -98,5 +98,89 @@ "teardown": [ "$IP link del dev $DUMMY type dummy" ] + }, + { + "id": "8e8c", + "name": "Enable clsact egress mini-qdisc for ingress", + "category": [ + "qdisc", + "ingress" + ], + "setup": [ + "$IP link add dev $DUMMY type dummy || /bin/true", + "$TC qdisc add dev $DUMMY ingress" + ], + "cmdUnderTest": "$TC qdisc change dev $DUMMY ingress clsact-on", + "expExitCode": "0", + "verifyCmd": "$TC qdisc show dev $DUMMY", + "matchPattern": "qdisc ingress ffff:.*clsact", + "matchCount": "1", + "teardown": [ + "$IP link del dev $DUMMY type dummy" + ] + }, + { + "id": "3a76", + "name": "Disable clsact egress mini-qdisc for ingress", + "category": [ + "qdisc", + "ingress" + ], + "setup": [ + "$IP link add dev $DUMMY type dummy || /bin/true", + "$TC qdisc add dev $DUMMY ingress", + "$TC qdisc change dev $DUMMY ingress clsact-on" + ], + "cmdUnderTest": "$TC qdisc change dev $DUMMY ingress clsact-off", + "expExitCode": "0", + "verifyCmd": "$TC qdisc show dev $DUMMY", + "matchPattern": "qdisc ingress ffff:.*clsact", + "matchCount": "0", + "teardown": [ + "$IP link del dev $DUMMY type dummy" + ] + }, + { + "id": "7b2b", + "name": "Enable clsact egress mini-qdisc for ingress twice", + "category": [ + "qdisc", + "ingress" + ], + "setup": [ + "$IP link add dev $DUMMY type dummy || /bin/true", + "$TC qdisc add dev $DUMMY ingress", + "$TC qdisc change dev $DUMMY ingress clsact-on" + ], + "cmdUnderTest": "$TC qdisc change dev $DUMMY ingress clsact-on", + "expExitCode": "2", + "verifyCmd": "$TC qdisc show dev $DUMMY", + "matchPattern": "qdisc ingress ffff:.*clsact", + "matchCount": "1", + "teardown": [ + "$IP link del dev $DUMMY type dummy" + ] + }, + { + "id": "05ab", + "name": "Disable clsact egress mini-qdisc for ingress twice", + "category": [ + "qdisc", + "ingress" + ], + "setup": [ + "$IP link add dev $DUMMY type dummy || /bin/true", + "$TC qdisc add dev $DUMMY ingress", + "$TC qdisc change dev $DUMMY ingress clsact-on", + "$TC qdisc change dev $DUMMY ingress clsact-off" + ], + "cmdUnderTest": "$TC qdisc change dev $DUMMY ingress clsact-off", + "expExitCode": "2", + "verifyCmd": "$TC qdisc show dev $DUMMY", + "matchPattern": "qdisc ingress ffff:.*clsact", + "matchCount": "0", + "teardown": [ + "$IP link del dev $DUMMY type dummy" + ] } ] -- 2.20.1

4 years, 3 months

1
0
0 0

[PATCH] kselftest/arm64: Ignore check_gcr_el1_cswitch binary

by Mark Brown

We added check_gcr_el1_cswitch but did not ignore the generated binary, add it. Signed-off-by: Mark Brown <broonie(a)kernel.org> --- tools/testing/selftests/arm64/mte/.gitignore | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/testing/selftests/arm64/mte/.gitignore b/tools/testing/selftests/arm64/mte/.gitignore index bc3ac63f3314..d1fe4ddf1669 100644 --- a/tools/testing/selftests/arm64/mte/.gitignore +++ b/tools/testing/selftests/arm64/mte/.gitignore @@ -1,4 +1,5 @@ check_buffer_fill +check_gcr_el1_cswitch check_tags_inclusion check_child_memory check_mmap_options -- 2.20.1

4 years, 3 months

2
1
0 0

[PATCH v3 0/4] kselftest/arm64: Vector length configuration tests

by Mark Brown

Currently we don't have full automated tests for the vector length configuation ABIs offered for SVE, we have a helper binary for setting the vector length which can be used for manual tests and we use the prctl() interface to enumerate the vector lengths but don't actually verify that the vector lengths enumerated were set. This patch series provides a small helper which allows us to get the currently configured vector length using the RDVL instruction via either a library call or stdout of a process and then uses this to both add verification of enumerated vector lengths to our existing tests and also add a new test program which exercises both the prctl() and sysfs interfaces. In preparation for the forthcomng support for the Scalable Matrix Extension (SME) [1] which introduces a new vector length managed via a very similar hardware interface the helper and new test program are parameterised with the goal of allowing reuse for SME. [1] https://community.arm.com/developer/ip-products/processors/b/processors-ip-… v3: - Add BTI landing pads to the asm helper functions. - Clean up pipes used to talk to children. - Remove another unneeded include. - Make functions in the main executable static. - Match the newline when parsing vector length from the child. - Factor out the fscanf() and fclose() from parsing integers from file descriptors. - getauxval() returns unsigned long. v2: - Tweak log message on failure in sve-probe-vls. - Stylistic changes in vec-syscfg. - Flush stdout before forking in vec-syscfg. - Use EXIT_FAILURE. - Use fdopen() to get child output. - Replace a bunch of UNIX API usage with stdio. - Add a TODO list. - Verify that we're root before testing writes to /proc. Mark Brown (4): kselftest/arm64: Provide a helper binary and "library" for SVE RDVL kselftest/arm64: Validate vector lengths are set in sve-probe-vls kselftest/arm64: Add tests for SVE vector configuration kselftest/arm64: Add a TODO list for floating point tests tools/testing/selftests/arm64/fp/.gitignore | 2 + tools/testing/selftests/arm64/fp/Makefile | 11 +- tools/testing/selftests/arm64/fp/TODO | 3 + tools/testing/selftests/arm64/fp/rdvl-sve.c | 14 + tools/testing/selftests/arm64/fp/rdvl.S | 10 + tools/testing/selftests/arm64/fp/rdvl.h | 8 + .../selftests/arm64/fp/sve-probe-vls.c | 5 + tools/testing/selftests/arm64/fp/vec-syscfg.c | 594 ++++++++++++++++++ 8 files changed, 644 insertions(+), 3 deletions(-) create mode 100644 tools/testing/selftests/arm64/fp/TODO create mode 100644 tools/testing/selftests/arm64/fp/rdvl-sve.c create mode 100644 tools/testing/selftests/arm64/fp/rdvl.S create mode 100644 tools/testing/selftests/arm64/fp/rdvl.h create mode 100644 tools/testing/selftests/arm64/fp/vec-syscfg.c base-commit: ff1176468d368232b684f75e82563369208bc371 -- 2.20.1

4 years, 3 months

2
12
0 0

[RFC PATCH v2 0/2] Introduce XSAVE/XRSTOR self-test

by Pengfei Xu

The XSAVE feature set supports the saving and restoring of state components, and XSAVE feature is used for process context switching. The XSAVE state components include x87 state for FPU execution environment, SSE state, AVX state and so on. In order to ensure that XSAVE works correctly, add XSAVE basic test for XSAVE architecture functionality. This patch set tests and verifies the basic functions of XSAVE/XRSTOR in user space; during and after signal processing on the x86 platform, the XSAVE contents of the process should not be changed. This series introduces only the most basic XSAVE tests. In the future, the intention is to continue expanding the scope of these selftests to include more kernel XSAVE-related functionality and XSAVE-managed features like AMX and shadow stacks. Pengfei Xu (2): selftests/xsave: test basic XSAVE architecture functionality selftests/xsave: add xsave test during and after signal handling tools/testing/selftests/Makefile | 1 + tools/testing/selftests/xsave/.gitignore | 3 + tools/testing/selftests/xsave/Makefile | 6 + tools/testing/selftests/xsave/xsave_common.h | 246 ++++++++++++++++++ .../selftests/xsave/xsave_instruction.c | 83 ++++++ .../selftests/xsave/xsave_signal_handle.c | 184 +++++++++++++ 6 files changed, 523 insertions(+) create mode 100644 tools/testing/selftests/xsave/.gitignore create mode 100644 tools/testing/selftests/xsave/Makefile create mode 100644 tools/testing/selftests/xsave/xsave_common.h create mode 100644 tools/testing/selftests/xsave/xsave_instruction.c create mode 100644 tools/testing/selftests/xsave/xsave_signal_handle.c -- 2.20.1

4 years, 3 months

1
2
0 0

[PATCH bpf-next v2 0/5] sockmap: add sockmap support for unix stream socket

by Jiang Wang

This patch series add support for unix stream type for sockmap. Sockmap already supports TCP, UDP, unix dgram types. The unix stream support is similar to unix dgram. Also add selftests for unix stream type in sockmap tests. Jiang Wang (5): af_unix: add read_sock for stream socket types af_unix: add unix_stream_proto for sockmap selftest/bpf: add tests for sockmap with unix stream type. selftest/bpf: change udp to inet in some function names selftest/bpf: add new tests in sockmap for unix stream to tcp. include/net/af_unix.h | 8 +- net/core/sock_map.c | 8 +- net/unix/af_unix.c | 88 +++++++++++++++--- net/unix/unix_bpf.c | 93 ++++++++++++++----- .../selftests/bpf/prog_tests/sockmap_listen.c | 48 ++++++---- 5 files changed, 192 insertions(+), 53 deletions(-) v1 -> v2 : - Call unhash in shutdown. - Clean up unix_create1 a bit. - Return -ENOTCONN if socket is not connected. -- 2.20.1

4 years, 3 months

3
7
0 0

[PATCH v9 23/26] selftest/x86/amx: Test cases for the AMX state management

by Chang S. Bae

This selftest verifies that the XSTATE arch_prctl works for AMX state and that a forked task has the AMX state in the INIT-state. In addition, this test verifies that the kernel correctly context switches unique AMX data, when multiple threads are using AMX. The test also verifies that ptrace() can insert data into existing threads. Finally, add a test case to verify that unused states are excluded, by leaving a known pattern on the signal stack and verifying that it is still intact after taking a subsequent signal. These test cases do not depend on AMX compiler support, as they employ userspace-XSAVE directly to access AMX state. Signed-off-by: Chang S. Bae <chang.seok.bae(a)intel.com> Reviewed-by: Len Brown <len.brown(a)intel.com> Cc: linux-kernel(a)vger.kernel.org Cc: linux-kselftest(a)vger.kernel.org --- Changes from v8: * Adjust for the arch_prctl change. * Assure XTILECFG is recovered upon sigreturn.. Changes from v7: * Adjust for SIGILL. * Test XTILECFG for legacy signal delivery. Changes from v6: * Adjust for the syscall and ptrace path changes. Changes from v5: * Adjusted arch_prctl for the updated ABI. * Added test for the dynamic signal xstate buffer. * Fixed XSAVE buffer's header data. Changes from v4: * Added test for arch_prctl. * Excluded tile config details to focus on testing the kernel's ability to manage dynamic user state. * Removed tile instructions. * Simplified the fork() and ptrace() test routine. * Massaged the changelog. Changes from v2: * Updated the test messages and the changelog as tile data is not inherited to a child anymore. * Removed bytecode for the instructions already supported by binutils. * Changed to check the XSAVE availability in a reliable way. Changes from v1: * Removed signal testing code --- tools/testing/selftests/x86/Makefile | 2 +- tools/testing/selftests/x86/amx.c | 968 +++++++++++++++++++++++++++ 2 files changed, 969 insertions(+), 1 deletion(-) create mode 100644 tools/testing/selftests/x86/amx.c diff --git a/tools/testing/selftests/x86/Makefile b/tools/testing/selftests/x86/Makefile index b4142cd1c5c2..8a1f62ab3c8e 100644 --- a/tools/testing/selftests/x86/Makefile +++ b/tools/testing/selftests/x86/Makefile @@ -18,7 +18,7 @@ TARGETS_C_32BIT_ONLY := entry_from_vm86 test_syscall_vdso unwind_vdso \ test_FCMOV test_FCOMI test_FISTTP \ vdso_restorer TARGETS_C_64BIT_ONLY := fsgsbase sysret_rip syscall_numbering \ - corrupt_xstate_header + corrupt_xstate_header amx # Some selftests require 32bit support enabled also on 64bit systems TARGETS_C_32BIT_NEEDED := ldt_gdt ptrace_syscall diff --git a/tools/testing/selftests/x86/amx.c b/tools/testing/selftests/x86/amx.c new file mode 100644 index 000000000000..afd8c66ca206 --- /dev/null +++ b/tools/testing/selftests/x86/amx.c @@ -0,0 +1,968 @@ +// SPDX-License-Identifier: GPL-2.0 + +#define _GNU_SOURCE +#include <err.h> +#include <errno.h> +#include <elf.h> +#include <pthread.h> +#include <setjmp.h> +#include <stdio.h> +#include <string.h> +#include <stdbool.h> +#include <unistd.h> +#include <x86intrin.h> + +#include <linux/futex.h> + +#include <sys/ptrace.h> +#include <sys/shm.h> +#include <sys/syscall.h> +#include <sys/wait.h> +#include <sys/uio.h> + +#ifndef __x86_64__ +# error This test is 64-bit only +#endif + +static inline uint64_t xgetbv(uint32_t index) +{ + uint32_t eax, edx; + + asm volatile("xgetbv;" + : "=a" (eax), "=d" (edx) + : "c" (index)); + return eax + ((uint64_t)edx << 32); +} + +static inline void cpuid(uint32_t *eax, uint32_t *ebx, uint32_t *ecx, uint32_t *edx) +{ + asm volatile("cpuid;" + : "=a" (*eax), "=b" (*ebx), "=c" (*ecx), "=d" (*edx) + : "0" (*eax), "2" (*ecx)); +} + +static inline void xsave(void *xbuf, uint32_t lo, uint32_t hi) +{ + asm volatile("xsave (%%rdi)" + : : "D" (xbuf), "a" (lo), "d" (hi) + : "memory"); +} + +static inline void xrstor(void *xbuf, uint32_t lo, uint32_t hi) +{ + asm volatile("xrstor (%%rdi)" + : : "D" (xbuf), "a" (lo), "d" (hi)); +} + +static void sethandler(int sig, void (*handler)(int, siginfo_t *, void *), + int flags) +{ + struct sigaction sa; + + memset(&sa, 0, sizeof(sa)); + sa.sa_sigaction = handler; + sa.sa_flags = SA_SIGINFO | flags; + sigemptyset(&sa.sa_mask); + if (sigaction(sig, &sa, 0)) + err(1, "sigaction"); +} + +static void clearhandler(int sig) +{ + struct sigaction sa; + + memset(&sa, 0, sizeof(sa)); + sa.sa_handler = SIG_DFL; + sigemptyset(&sa.sa_mask); + if (sigaction(sig, &sa, 0)) + err(1, "sigaction"); +} + +static jmp_buf jmpbuf; + +/* Hardware info check: */ + +static bool noxsave; + +static void handle_noxsave(int sig, siginfo_t *si, void *ctx_void) +{ + noxsave = true; + siglongjmp(jmpbuf, 1); +} + +#define XFEATURE_XTILECFG 17 +#define XFEATURE_XTILEDATA 18 +#define XFEATURE_MASK_XTILECFG (1 << XFEATURE_XTILECFG) +#define XFEATURE_MASK_XTILEDATA (1 << XFEATURE_XTILEDATA) +#define XFEATURE_MASK_XTILE (XFEATURE_MASK_XTILECFG | XFEATURE_MASK_XTILEDATA) + +static inline bool check_xtile(void) +{ + bool xtile_enable; + + sethandler(SIGILL, handle_noxsave, 0); + + if ((!sigsetjmp(jmpbuf, 1)) && (xgetbv(0) & XFEATURE_MASK_XTILE)) { + xtile_enable = true; + goto out; + } + xtile_enable = false; +out: + clearhandler(SIGILL); + return xtile_enable; +} + +static uint32_t xsave_size; +static uint32_t xsave_xtiledata_offset, xsave_xtilecfg_offset; +static uint32_t xtiledata_size, xtilecfg_size; + +static struct _tile_spec { + uint16_t bytes_per_row; + uint16_t max_names; + uint16_t max_rows; +} tile_spec; + +#define XSTATE_CPUID 0xd +#define XSTATE_USER_STATE_SUBLEAVE 0x0 +#define TILE_CPUID 0x1d +#define TILE_PALETTE_ID 0x1 + +static void check_cpuid(void) +{ + uint32_t eax, ebx, ecx, edx; + + eax = XSTATE_CPUID; + ecx = XSTATE_USER_STATE_SUBLEAVE; + + cpuid(&eax, &ebx, &ecx, &edx); + if (!ebx) + err(1, "xstate cpuid: xsave size"); + + xsave_size = ebx; + + eax = XSTATE_CPUID; + ecx = XFEATURE_XTILECFG; + + cpuid(&eax, &ebx, &ecx, &edx); + if (!eax || !ebx) + err(1, "xstate cpuid: tile config state"); + + xtilecfg_size = eax; + xsave_xtilecfg_offset = ebx; + + eax = XSTATE_CPUID; + ecx = XFEATURE_XTILEDATA; + + cpuid(&eax, &ebx, &ecx, &edx); + if (!eax || !ebx) + err(1, "xstate cpuid: tile data state"); + + xtiledata_size = eax; + xsave_xtiledata_offset = ebx; + + eax = TILE_CPUID; + ecx = TILE_PALETTE_ID; + + cpuid(&eax, &ebx, &ecx, &edx); + if (!eax || !ebx || !ecx) + err(1, "tile cpuid: palette 1"); + + tile_spec.max_names = ebx >> 16; + tile_spec.bytes_per_row = ebx; + tile_spec.max_rows = ecx; +} + +/* The helpers for managing XSAVE buffer and tile states: */ + +void *alloc_xsave_buffer(void) +{ + void *xbuf; + + /* XSAVE buffer should be 64B-aligned. */ + xbuf = aligned_alloc(64, xsave_size); + if (!xbuf) + err(1, "aligned_alloc()"); + return xbuf; +} + +#define XSAVE_HDR_OFFSET 512 +#define XSAVE_HDR_SIZE 64 + +static inline void clear_xstate_header(void *buffer) +{ + memset(buffer + XSAVE_HDR_OFFSET, 0, XSAVE_HDR_SIZE); +} + +static inline uint64_t get_xstatebv(void *buffer) +{ + return *(uint64_t *)(buffer + XSAVE_HDR_OFFSET); +} + +static inline void set_xstatebv(void *buffer, uint64_t bv) +{ + *(uint64_t *)(buffer + XSAVE_HDR_OFFSET) = bv; +} + +static void set_rand_tiledata(void *tiledata) +{ + int *ptr = tiledata; + int data = rand(); + int i; + + for (i = 0; i < xtiledata_size / sizeof(int); i++, ptr++) + *ptr = data; +} + +#define MAX_TILES 16 +#define RESERVED_BYTES 14 + +struct tile_config { + uint8_t palette_id; + uint8_t start_row; + uint8_t reserved[RESERVED_BYTES]; + uint16_t colsb[MAX_TILES]; + uint8_t rows[MAX_TILES]; +}; + +static void set_tilecfg(void *tilecfg) +{ + struct tile_config *cfg = tilecfg; + int i; + + memset(cfg, 0, sizeof(*cfg)); + cfg->palette_id = TILE_PALETTE_ID; + for (i = 0; i < tile_spec.max_names; i++) { + cfg->colsb[i] = tile_spec.bytes_per_row; + cfg->rows[i] = tile_spec.max_rows; + } +} + +static void *xsave_buffer, *tiledata, *tilecfg; +static int nerrs, errs; + +/* See 'struct _fpx_sw_bytes' at sigcontext.h */ +#define SW_BYTES_OFFSET 464 +/* N.B. The struct's field name varies so read from the offset. */ +#define SW_BYTES_BV_OFFSET (SW_BYTES_OFFSET + 8) + +static inline struct _fpx_sw_bytes *get_fpx_sw_bytes(void *buffer) +{ + return (struct _fpx_sw_bytes *)(buffer + SW_BYTES_OFFSET); +} + +static inline uint64_t get_fpx_sw_bytes_xstatebv(void *buffer) +{ + return *(uint64_t *)(buffer + SW_BYTES_BV_OFFSET); +} + +static volatile bool noperm; +static bool check_tilecfg_sigframe; + +static void handle_noperm(int sig, siginfo_t *si, void *ctx_void) +{ + ucontext_t *ctx = (ucontext_t *)ctx_void; + void *xbuf = ctx->uc_mcontext.fpregs; + struct _fpx_sw_bytes *sw_bytes; + + printf("\tAt SIGILL handler,\n"); + + if (si->si_code != ILL_ILLOPC) { + errs++; + printf("[FAIL]\tInvalid signal code (%x).\n", si->si_code); + } else { + printf("[OK]\tValid signal code (ILL_ILLOPC).\n"); + } + + sw_bytes = get_fpx_sw_bytes(xbuf); + if (!(sw_bytes->xstate_size < xsave_xtiledata_offset) && + !(get_fpx_sw_bytes_xstatebv(xbuf) & XFEATURE_MASK_XTILEDATA)) { + printf("[OK]\tValid xstate size and mask in the SW data of xstate buffer.\n"); + } else { + errs++; + printf("[FAIL]\tInvalid xstate size and/or mask in the SW data of xstate buf.\n"); + } + + if (check_tilecfg_sigframe) { + if (memcmp(tilecfg, xbuf + xsave_xtilecfg_offset, xtilecfg_size)) { + errs++; + printf("[FAIL]\tTILECFG is corrupted.\n"); + } else { + printf("[OK]\tTILECFG is successfully delivered.\n"); + } + } + + noperm = true; + ctx->uc_mcontext.gregs[REG_RIP] += 3; /* Skip the faulting XRSTOR */ +} + +/* Return true if XRSTOR is successful; otherwise, false. */ +static inline bool xrstor_safe(void *buffer, uint32_t lo, uint32_t hi) +{ + noperm = false; + xrstor(buffer, lo, hi); + return !noperm; +} + +/* arch_prctl test */ + +#define ARCH_SET_STATE_ENABLE 0x1021 +#define ARCH_GET_STATE_ENABLE 0x1022 + +static void enable_tiledata(void) +{ + unsigned long bitmask; + long rc; + + rc = syscall(SYS_arch_prctl, ARCH_SET_STATE_ENABLE, XFEATURE_MASK_XTILEDATA); + if (rc) + goto fail; + + rc = syscall(SYS_arch_prctl, ARCH_GET_STATE_ENABLE, &bitmask); + if (rc) + err(1, "ARCH_GET_STATE_ENABLE"); + else if (bitmask & XFEATURE_MASK_XTILEDATA) + return; + +fail: + err(1, "ARCH_SET_STATE_ENABLE"); +} + +#define TEST_EXECV_ARG "nested" + +static void test_arch_prctl(int argc, char **argv) +{ + pid_t parent, child, grandchild; + + parent = fork(); + if (parent < 0) { + err(1, "fork"); + } else if (parent > 0) { + int status; + + wait(&status); + if (!WIFEXITED(status) || WEXITSTATUS(status)) + err(1, "arch_prctl test parent exit"); + return; + } + + printf("[RUN]\tCheck ARCH_SET_STATE_ENABLE around process fork().\n"); + + printf("\tFork a child.\n"); + child = fork(); + if (child < 0) { + err(1, "fork"); + } else if (child > 0) { + int status; + + enable_tiledata(); + printf("\tDo ARCH_SET_STATE_ENABLE at parent\n"); + + wait(&status); + if (!WIFEXITED(status) || WEXITSTATUS(status)) + err(1, "arch_prctl test child exit"); + _exit(0); + } + + clear_xstate_header(xsave_buffer); + + /* By default, XTILECFG is permitted to use. */ + set_xstatebv(xsave_buffer, XFEATURE_MASK_XTILECFG); + set_tilecfg(xsave_buffer + xsave_xtilecfg_offset); + xrstor(xsave_buffer, -1, -1); + memcpy(tilecfg, xsave_buffer + xsave_xtilecfg_offset, xtilecfg_size); + + set_xstatebv(xsave_buffer, XFEATURE_MASK_XTILEDATA); + set_rand_tiledata(xsave_buffer + xsave_xtiledata_offset); + + printf("\tLoad tile data without ARCH_SET_STATE_ENABLE at child.\n"); + /* + * Test XTILECFG state delivery via signal, when XTILEDATA is not + * permitted. + */ + check_tilecfg_sigframe = true; + if (xrstor_safe(xsave_buffer, -1, -1)) { + nerrs++; + printf("[FAIL]\tSucceeded at child.\n"); + } else { + printf("[OK]\tBlocked at child.\n"); + + /* Assure XTILECFG state recovery at sigreturn. */ + printf("\tReturn from signal handler,\n"); + xsave(xsave_buffer, XFEATURE_MASK_XTILECFG, 0); + if (memcmp(tilecfg, xsave_buffer + xsave_xtilecfg_offset, xtilecfg_size)) { + nerrs++; + printf("[FAIL]\tTilecfg is not restored.\n"); + } else { + printf("[OK]\tTilecfg is restored.\n"); + } + } + + printf("\tDo ARCH_SET_STATE_ENABLE at child.\n"); + enable_tiledata(); + + printf("\tLoad tile data with ARCH_SET_STATE_ENABLE at child:\n"); + check_tilecfg_sigframe = false; + if (xrstor_safe(xsave_buffer, -1, -1)) { + printf("[OK]\tSucceeded at child.\n"); + } else { + nerrs++; + printf("[FAIL]\tBlocked at child.\n"); + } + + printf("\tFork a grandchild.\n"); + grandchild = fork(); + if (grandchild < 0) { + err(1, "fork"); + } else if (!grandchild) { + char *args[] = {argv[0], TEST_EXECV_ARG, NULL}; + + if (xrstor_safe(xsave_buffer, -1, -1)) { + printf("[OK]\tSucceeded at grandchild.\n"); + } else { + nerrs++; + printf("[FAIL]\tBlocked at grandchild.\n"); + } + nerrs += execv(args[0], args); + } else { + int status; + + wait(&status); + if (!WIFEXITED(status) || WEXITSTATUS(status)) + err(1, "fork test grandchild"); + } + _exit(0); +} + +/* Testing tile data inheritance */ + +static void test_fork(void) +{ + pid_t child, grandchild; + + child = fork(); + if (child < 0) { + err(1, "fork"); + } else if (child > 0) { + int status; + + wait(&status); + if (!WIFEXITED(status) || WEXITSTATUS(status)) + err(1, "fork test child"); + return; + } + + printf("[RUN]\tCheck tile data inheritance.\n\tBefore fork(), load tile data -- yes:\n"); + + clear_xstate_header(xsave_buffer); + set_xstatebv(xsave_buffer, XFEATURE_MASK_XTILE); + set_tilecfg(xsave_buffer + xsave_xtilecfg_offset); + set_rand_tiledata(xsave_buffer + xsave_xtiledata_offset); + xrstor_safe(xsave_buffer, -1, -1); + + grandchild = fork(); + if (grandchild < 0) { + err(1, "fork"); + } else if (grandchild > 0) { + int status; + + wait(&status); + if (!WIFEXITED(status) || WEXITSTATUS(status)) + err(1, "fork test grand child"); + _exit(0); + } + + if (xgetbv(1) & XFEATURE_MASK_XTILE) { + nerrs++; + printf("[FAIL]\tIn a child, AMX state is not initialized.\n"); + } else { + printf("[OK]\tIn a child, AMX state is initialized.\n"); + } + _exit(0); +} + +/* Context switching test */ + +#define ITERATIONS 10 +#define NUM_THREADS 5 + +struct futex_info { + int current; + int *futex; + int next; +}; + +static inline void command_wait(struct futex_info *info, int value) +{ + do { + sched_yield(); + } while (syscall(SYS_futex, info->futex, FUTEX_WAIT, value, 0, 0, 0)); +} + +static inline void command_wake(struct futex_info *info, int value) +{ + do { + *info->futex = value; + while (!syscall(SYS_futex, info->futex, FUTEX_WAKE, 1, 0, 0, 0)) + sched_yield(); + } while (0); +} + +static inline int get_iterative_value(int id) +{ + return ((id << 1) & ~0x1); +} + +static inline int get_endpoint_value(int id) +{ + return ((id << 1) | 0x1); +} + +static void *check_tiledata(void *info) +{ + struct futex_info *finfo = (struct futex_info *)info; + void *xbuf, *tdata; + int i; + + xbuf = alloc_xsave_buffer(); + tdata = malloc(xtiledata_size); + if (!tdata) + err(1, "malloc()"); + + set_xstatebv(xbuf, XFEATURE_MASK_XTILEDATA); + set_rand_tiledata(xbuf + xsave_xtiledata_offset); + xrstor_safe(xbuf, -1, -1); + memcpy(tdata, xbuf + xsave_xtiledata_offset, xtiledata_size); + + for (i = 0; i < ITERATIONS; i++) { + command_wait(finfo, get_iterative_value(finfo->current)); + + xsave(xbuf, XFEATURE_MASK_XTILEDATA, 0); + if (memcmp(tdata, xbuf + xsave_xtiledata_offset, xtiledata_size)) + errs++; + + set_rand_tiledata(xbuf + xsave_xtiledata_offset); + xrstor_safe(xbuf, -1, -1); + memcpy(tdata, xbuf + xsave_xtiledata_offset, xtiledata_size); + + command_wake(finfo, get_iterative_value(finfo->next)); + } + + command_wait(finfo, get_endpoint_value(finfo->current)); + + free(xbuf); + free(tdata); + return NULL; +} + +static int create_threads(int num, struct futex_info *finfo) +{ + const int shm_id = shmget(IPC_PRIVATE, sizeof(int), IPC_CREAT | 0666); + int *futex = shmat(shm_id, NULL, 0); + pthread_t thread; + int i; + + for (i = 0; i < num; i++) { + finfo[i].futex = futex; + finfo[i].current = i + 1; + finfo[i].next = (i + 2) % (num + 1); + + if (pthread_create(&thread, NULL, check_tiledata, &finfo[i])) + err(1, "pthread_create()"); + } + return 0; +} + +static void test_context_switch(void) +{ + struct futex_info *finfo; + int i; + + printf("[RUN]\tCheck tile data context switches.\n"); + printf("\t# of context switches -- %u, # of threads -- %d:\n", + ITERATIONS * NUM_THREADS, NUM_THREADS); + + errs = 0; + + finfo = malloc(sizeof(*finfo) * NUM_THREADS); + if (!finfo) + err(1, "malloc()"); + + create_threads(NUM_THREADS, finfo); + + for (i = 0; i < ITERATIONS; i++) { + command_wake(finfo, get_iterative_value(1)); + command_wait(finfo, get_iterative_value(0)); + } + + for (i = 1; i <= NUM_THREADS; i++) + command_wake(finfo, get_endpoint_value(i)); + + if (errs) { + nerrs += errs; + printf("[FAIL]\tIncorrect cases were found -- (%d / %u).\n", + errs, ITERATIONS * NUM_THREADS); + } else { + printf("[OK]\tNo incorrect case was found.\n"); + } + + free(finfo); +} + +/* Ptrace test */ + +static bool ptracee_state_perm; + +static int inject_tiledata(pid_t target) +{ + struct iovec iov; + + iov.iov_base = xsave_buffer; + iov.iov_len = xsave_size; + + clear_xstate_header(xsave_buffer); + set_xstatebv(xsave_buffer, XFEATURE_MASK_XTILEDATA); + set_rand_tiledata(xsave_buffer + xsave_xtiledata_offset); + memcpy(tiledata, xsave_buffer + xsave_xtiledata_offset, xtiledata_size); + + if (ptrace(PTRACE_SETREGSET, target, (uint32_t)NT_X86_XSTATE, &iov)) { + if (errno != EFAULT) + err(1, "PTRACE_SETREGSET"); + else + return errno; + } + + if (ptrace(PTRACE_GETREGSET, target, (uint32_t)NT_X86_XSTATE, &iov)) + err(1, "PTRACE_GETREGSET"); + + if (!memcmp(tiledata, xsave_buffer + xsave_xtiledata_offset, xtiledata_size)) + return 0; + else + return -1; +} + +static void test_tile_write(void) +{ + int status, rc; + pid_t child; + bool pass; + + child = fork(); + if (child < 0) { + err(1, "fork"); + } else if (!child) { + if (ptracee_state_perm) + enable_tiledata(); + + if (ptrace(PTRACE_TRACEME, 0, NULL, NULL)) + err(1, "PTRACE_TRACEME"); + + raise(SIGTRAP); + _exit(0); + } + + do { + wait(&status); + } while (WSTOPSIG(status) != SIGTRAP); + + printf("\tInject tile data %s ARCH_SET_STATE_ENABLE\n", + ptracee_state_perm ? "with" : "without"); + + rc = inject_tiledata(child); + pass = (rc == EFAULT && !ptracee_state_perm) || + (!rc && ptracee_state_perm); + if (!pass) + nerrs++; + printf("[%s]\tTile data was %swritten on ptracee.\n", + pass ? "OK" : "FAIL", errs ? "not " : ""); + + ptrace(PTRACE_DETACH, child, NULL, NULL); + wait(&status); + if (!WIFEXITED(status) || WEXITSTATUS(status)) + err(1, "ptrace test"); +} + +static void test_ptrace(void) +{ + printf("[RUN]\tCheck ptrace() to inject tile data.\n"); + + ptracee_state_perm = false; + test_tile_write(); + + ptracee_state_perm = true; + test_tile_write(); +} + +/* Signal handling test */ + +static bool init_tiledata, load_tiledata; +static volatile bool signaled, sigstk_prefill; + +#define SIGFRAME_TILEDATA_SIGNATURE 0xEE + +static void handle_sigstk_prefill(int sig, siginfo_t *info, void *ctx_void) +{ + void *xbuf = ((ucontext_t *)ctx_void)->uc_mcontext.fpregs; + struct _fpx_sw_bytes *sw_bytes = get_fpx_sw_bytes(xsave); + + if (sw_bytes->xstate_size >= (xsave_xtiledata_offset + xtiledata_size)) { + memset(xbuf + xsave_xtiledata_offset, SIGFRAME_TILEDATA_SIGNATURE, + xtiledata_size); + } + + sigstk_prefill = true; +} + +static void handle_signal(int sig, siginfo_t *info, void *ctx_void) +{ + bool tiledata_area, tiledata_bit, tiledata_inuse; + void *xbuf = ((ucontext_t *)ctx_void)->uc_mcontext.fpregs; + struct _fpx_sw_bytes *sw_bytes = get_fpx_sw_bytes(xbuf); + char d = SIGFRAME_TILEDATA_SIGNATURE; + int i; + + printf("\tAt signal delivery,\n"); + + /* Check SW reserved data in the buffer: */ + if ((sw_bytes->xstate_size >= (xsave_xtiledata_offset + xtiledata_size)) && + (get_fpx_sw_bytes_xstatebv(xbuf) & XFEATURE_MASK_XTILEDATA)) { + printf("[OK]\tValid xstate size and mask in the SW data of xstate buffer\n"); + } else { + errs++; + printf("[FAIL]\tInvalid xstate size and/or mask in the SW data of xstate buffer\n"); + } + + /* Check XSAVE buffer header: */ + tiledata_inuse = (load_tiledata && !init_tiledata); + tiledata_bit = get_xstatebv(xbuf) & XFEATURE_MASK_XTILEDATA; + + if (tiledata_bit == tiledata_inuse) { + printf("[OK]\tTiledata bit is %sset in XSTATE_BV of xstate buffer.\n", + tiledata_bit ? "" : "not "); + } else { + errs++; + printf("[FAIL]\tTiledata bit is %sset in XSTATE_BV of xstate buffer.\n", + tiledata_bit ? "" : "not "); + } + + /* + * Check the sigframe data: + */ + + tiledata_inuse = (load_tiledata && !init_tiledata); + tiledata_area = false; + if (sw_bytes->xstate_size >= (xsave_xtiledata_offset + xtiledata_size)) { + for (i = 0; i < xtiledata_size; i++) { + if (memcmp(xbuf + xsave_xtiledata_offset + i, &d, 1)) { + tiledata_area = true; + break; + } + } + } + + if (tiledata_area == tiledata_inuse) { + printf("[OK]\tTiledata is %ssaved in signal buffer.\n", + tiledata_area ? "" : "not "); + } else { + errs++; + printf("[FAIL]\tTiledata is %ssaved in signal buffer.\n", + tiledata_area ? "" : "not "); + } + + /* Load random tiledata to test sigreturn: */ + clear_xstate_header(xsave_buffer); + set_xstatebv(xsave_buffer, XFEATURE_MASK_XTILEDATA); + set_rand_tiledata(xsave_buffer + xsave_xtiledata_offset); + xrstor_safe(xsave_buffer, -1, -1); + signaled = true; +} + +static void test_signal_handling(void) +{ + pid_t child; + + signaled = false; + sigstk_prefill = false; + + child = fork(); + if (child < 0) { + err(1, "fork"); + } else if (child > 0) { + do { + int status; + + wait(&status); + if (WIFSTOPPED(status)) + kill(child, SIGCONT); + else if (WIFEXITED(status) && !WEXITSTATUS(status)) + break; + else + err(1, "signal test child"); + } while (1); + return; + } + + printf("\tBefore signal, load tile data -- %s", load_tiledata ? "yes, " : "no:\n"); + if (load_tiledata) + printf("re-initialized -- %s:\n", init_tiledata ? "yes" : "no"); + + /* + * Raise SIGUSR1 to pre-fill sig stack. Also, load tiledata to size the pre-fill. + */ + + if (load_tiledata) { + clear_xstate_header(xsave_buffer); + set_xstatebv(xsave_buffer, XFEATURE_MASK_XTILEDATA); + xrstor_safe(xsave_buffer, -1, -1); + } + + raise(SIGUSR1); + if (!sigstk_prefill) + err(1, "SIGUSR1"); + + /* + * Raise SIGALRM to test AMX state handling in signal delivery. Set up the state and + * data before the test. + */ + + if (load_tiledata) { + clear_xstate_header(xsave_buffer); + set_xstatebv(xsave_buffer, XFEATURE_MASK_XTILEDATA); + set_rand_tiledata(xsave_buffer + xsave_xtiledata_offset); + xrstor_safe(xsave_buffer, -1, -1); + + if (init_tiledata) { + clear_xstate_header(xsave_buffer); + set_xstatebv(xsave_buffer, 0); + xrstor_safe(xsave_buffer, -1, -1); + memset(tiledata, 0, xtiledata_size); + } else { + memcpy(tiledata, xsave_buffer + xsave_xtiledata_offset, + xtiledata_size); + } + } else { + memset(tiledata, 0, xtiledata_size); + } + + raise(SIGALRM); + if (!signaled) + err(1, "SIGALRM"); + + printf("\tReturn from signal handler,\n"); + xsave(xsave_buffer, XFEATURE_MASK_XTILEDATA, 0); + if (memcmp(tiledata, xsave_buffer + xsave_xtiledata_offset, xtiledata_size)) { + errs++; + printf("[FAIL]\tTiledata is not restored.\n"); + } else { + printf("[OK]\tTiledata is restored.\n"); + } + + if (errs) + nerrs++; + _exit(0); +} + +static void test_signal(void) +{ + printf("[RUN]\tCheck tile data state in signal path:\n"); + + sethandler(SIGALRM, handle_signal, 0); + sethandler(SIGUSR1, handle_sigstk_prefill, 0); + + load_tiledata = false; + init_tiledata = false; + errs = 0; + test_signal_handling(); + + load_tiledata = true; + init_tiledata = false; + errs = 0; + test_signal_handling(); + + load_tiledata = true; + init_tiledata = true; + errs = 0; + test_signal_handling(); + + clearhandler(SIGALRM); + clearhandler(SIGUSR1); +} + +int main(int argc, char **argv) +{ + cpu_set_t cpuset; + + if (argc == 2) { + int ret; + + if (strcmp(argv[1], TEST_EXECV_ARG)) + return 0; + + printf("\tRun after execv().\n"); + + xsave_buffer = alloc_xsave_buffer(); + clear_xstate_header(xsave_buffer); + + set_xstatebv(xsave_buffer, XFEATURE_MASK_XTILE); + set_rand_tiledata(xsave_buffer + xsave_xtiledata_offset); + + sethandler(SIGILL, handle_noperm, 0); + + if (xrstor_safe(xsave_buffer, -1, -1)) { + printf("[FAIL]\tSucceeded after execv().\n"); + ret = 1; + } else { + printf("[OK]\tBlocked after execv().\n"); + ret = 0; + } + + clearhandler(SIGILL); + free(xsave_buffer); + _exit(ret); + } + + /* Check hardware availability at first */ + + if (!check_xtile()) { + printf("%s is disabled.\n", noxsave ? "XSAVE" : "AMX"); + return 0; + } + + check_cpuid(); + + xsave_buffer = alloc_xsave_buffer(); + clear_xstate_header(xsave_buffer); + + tiledata = malloc(xtiledata_size); + if (!tiledata) + err(1, "malloc()"); + + tilecfg = malloc(xtilecfg_size); + if (!tilecfg) + err(1, "malloc()"); + set_tilecfg(tilecfg); + + nerrs = 0; + + sethandler(SIGILL, handle_noperm, 0); + + CPU_ZERO(&cpuset); + CPU_SET(0, &cpuset); + + if (sched_setaffinity(0, sizeof(cpuset), &cpuset) != 0) + err(1, "sched_setaffinity to CPU 0"); + + test_arch_prctl(argc, argv); + test_ptrace(); + + enable_tiledata(); + test_context_switch(); + test_fork(); + test_signal(); + + clearhandler(SIGILL); + + free(tilecfg); + free(tiledata); + free(xsave_buffer); + return nerrs ? 1 : 0; +} -- 2.17.1

4 years, 3 months

1
0
0 0

[PATCH v3 2/3] kunit: Add support for suite initialization and cleanup

by Bart Van Assche

A common feature of unit testing frameworks is support for sharing a test configuration across multiple unit tests. Add this functionality to the KUnit framework. This functionality will be used in the next patch in this series. Reviewed-by: Brendan Higgins <brendanhiggins(a)google.com> Cc: David Gow <davidgow(a)google.com> Cc: Shuah Khan <skhan(a)linuxfoundation.org> Cc: kunit-dev(a)googlegroups.com Cc: linux-kselftest(a)vger.kernel.org Cc: Bodo Stroesser <bostroesser(a)gmail.com> Cc: Martin K. Petersen <martin.petersen(a)oracle.com> Cc: Yanko Kaneti <yaneti(a)declera.com> Signed-off-by: Bart Van Assche <bvanassche(a)acm.org> --- include/kunit/test.h | 4 ++++ lib/kunit/test.c | 14 ++++++++++++++ 2 files changed, 18 insertions(+) diff --git a/include/kunit/test.h b/include/kunit/test.h index 24b40e5c160b..a6eef96a409c 100644 --- a/include/kunit/test.h +++ b/include/kunit/test.h @@ -215,6 +215,8 @@ static inline char *kunit_status_to_ok_not_ok(enum kunit_status status) * struct kunit_suite - describes a related collection of &struct kunit_case * * @name: the name of the test. Purely informational. + * @init_suite: called once per test suite before the test cases. + * @exit_suite: called once per test suite after all test cases. * @init: called before every test case. * @exit: called after every test case. * @test_cases: a null terminated array of test cases. @@ -229,6 +231,8 @@ static inline char *kunit_status_to_ok_not_ok(enum kunit_status status) */ struct kunit_suite { const char name[256]; + int (*init_suite)(void); + void (*exit_suite)(void); int (*init)(struct kunit *test); void (*exit)(struct kunit *test); struct kunit_case *test_cases; diff --git a/lib/kunit/test.c b/lib/kunit/test.c index d79ecb86ea57..c271692ced93 100644 --- a/lib/kunit/test.c +++ b/lib/kunit/test.c @@ -397,9 +397,19 @@ int kunit_run_tests(struct kunit_suite *suite) { char param_desc[KUNIT_PARAM_DESC_SIZE]; struct kunit_case *test_case; + int res = 0; kunit_print_subtest_start(suite); + if (suite->init_suite) + res = suite->init_suite(); + + if (res < 0) { + kunit_log(KERN_INFO, suite, KUNIT_SUBTEST_INDENT + "# Suite initialization failed (%d)\n", res); + goto end; + } + kunit_suite_for_each_test_case(suite, test_case) { struct kunit test = { .param_value = NULL, .param_index = 0 }; test_case->status = KUNIT_SKIPPED; @@ -439,6 +449,10 @@ int kunit_run_tests(struct kunit_suite *suite) test.status_comment); } + if (suite->exit_suite) + suite->exit_suite(); + +end: kunit_print_subtest_end(suite); return 0;

4 years, 3 months

1
0
0 0

[PATCH v2] selftests/sgx: Fix Q1 and Q2 calculation in sigstruct.c

by Jarkko Sakkinen

From: Tianjia Zhang <tianjia.zhang(a)linux.alibaba.com> Q1 and Q2 are numbers with *maximum* length of 384 bytes. If the calculated length of Q1 and Q2 is less than 384 bytes, things will go wrong. E.g. if Q2 is 383 bytes, then 1. The bytes of q2 are copied to sigstruct->q2 in calc_q1q2(). 2. The entire sigstruct->q2 is reversed, which results it being 256 * Q2, given that the last byte of sigstruct->q2 is added to before the bytes given by calc_q1q2(). Either change in key or measurement can trigger the bug. E.g. an unmeasured heap could cause a devastating change in Q1 or Q2. Reverse exactly the bytes of Q1 and Q2 in calc_q1q2() before returning to the caller. Fixes: dedde2634570 ("selftests/sgx: Trigger the reclaimer in the selftests") Link: https://lore.kernel.org/linux-sgx/20210301051836.30738-1-tianjia.zhang@linu… Signed-off-by: Tianjia Zhang <tianjia.zhang(a)linux.alibaba.com> Signed-off-by: Jarkko Sakkinen <jarkko(a)kernel.org> --- The original patch did a bad job explaining the code change but it turned out making sense. I wrote a new description. v2: - Added a fixes tag. tools/testing/selftests/sgx/sigstruct.c | 41 +++++++++++++------------ 1 file changed, 21 insertions(+), 20 deletions(-) diff --git a/tools/testing/selftests/sgx/sigstruct.c b/tools/testing/selftests/sgx/sigstruct.c index dee7a3d6c5a5..92bbc5a15c39 100644 --- a/tools/testing/selftests/sgx/sigstruct.c +++ b/tools/testing/selftests/sgx/sigstruct.c @@ -55,10 +55,27 @@ static bool alloc_q1q2_ctx(const uint8_t *s, const uint8_t *m, return true; } +static void reverse_bytes(void *data, int length) +{ + int i = 0; + int j = length - 1; + uint8_t temp; + uint8_t *ptr = data; + + while (i < j) { + temp = ptr[i]; + ptr[i] = ptr[j]; + ptr[j] = temp; + i++; + j--; + } +} + static bool calc_q1q2(const uint8_t *s, const uint8_t *m, uint8_t *q1, uint8_t *q2) { struct q1q2_ctx ctx; + int len; if (!alloc_q1q2_ctx(s, m, &ctx)) { fprintf(stderr, "Not enough memory for Q1Q2 calculation\n"); @@ -89,8 +106,10 @@ static bool calc_q1q2(const uint8_t *s, const uint8_t *m, uint8_t *q1, goto out; } - BN_bn2bin(ctx.q1, q1); - BN_bn2bin(ctx.q2, q2); + len = BN_bn2bin(ctx.q1, q1); + reverse_bytes(q1, len); + len = BN_bn2bin(ctx.q2, q2); + reverse_bytes(q2, len); free_q1q2_ctx(&ctx); return true; @@ -152,22 +171,6 @@ static RSA *gen_sign_key(void) return key; } -static void reverse_bytes(void *data, int length) -{ - int i = 0; - int j = length - 1; - uint8_t temp; - uint8_t *ptr = data; - - while (i < j) { - temp = ptr[i]; - ptr[i] = ptr[j]; - ptr[j] = temp; - i++; - j--; - } -} - enum mrtags { MRECREATE = 0x0045544145524345, MREADD = 0x0000000044444145, @@ -367,8 +370,6 @@ bool encl_measure(struct encl *encl) /* BE -> LE */ reverse_bytes(sigstruct->signature, SGX_MODULUS_SIZE); reverse_bytes(sigstruct->modulus, SGX_MODULUS_SIZE); - reverse_bytes(sigstruct->q1, SGX_MODULUS_SIZE); - reverse_bytes(sigstruct->q2, SGX_MODULUS_SIZE); EVP_MD_CTX_destroy(ctx); RSA_free(key); -- 2.32.0

4 years, 3 months

2
5
0 0

[PATCH v2 0/4] Swap and fault all the pages of the test enclave binary

by Jarkko Sakkinen

Create a heap for the test enclave, which has the same size as all available Enclave Page Cache (EPC) pages in the system. This will guarantee that all test_encl.elf pages *and* SGX Enclave Control Structure (SECS) have been swapped out by the page reclaimer during the load time. Actually, this adds a bit more stress than that since part of the EPC gets reserved for the Version Array (VA) pages. For each test, the page fault handler gets triggered in two occasions: - When SGX_IOC_ENCLAVE_INIT is performed, SECS gets swapped in by the page fault handler. - During the execution, each page that is referenced gets swapped in by the page fault handler. Jarkko Sakkinen (3): x86/sgx: Add /sys/kernel/debug/x86/sgx_total_mem selftests/sgx: Assign source for each segment selftests/sgx: Trigger the reclaimer and #PF handler Tianjia Zhang (1): selftests/sgx: Fix calculations for sub-maximum field sizes Documentation/x86/sgx.rst | 6 +++ arch/x86/kernel/cpu/sgx/main.c | 10 ++++- tools/testing/selftests/sgx/load.c | 38 ++++++++++++++---- tools/testing/selftests/sgx/main.c | 42 +++++++++++++++++++- tools/testing/selftests/sgx/main.h | 4 +- tools/testing/selftests/sgx/sigstruct.c | 53 +++++++++++++------------ 6 files changed, 117 insertions(+), 36 deletions(-) -- 2.32.0

4 years, 3 months

2
6
0 0

[PATCH 1/2] kunit: tool: make --raw_output support only showing kunit output

by Daniel Latypov

--raw_output is nice, but it would be nicer if could show only output after KUnit tests ahve started. So change the flag to allow specifying a string ('kunit'). Make it so `--raw_output` alone will default to `--raw_output=all` and have the same original behavior. Drop the small kunit_parser.raw_output() function since it feels wrong to put it in "kunit_parser.py" when the point of it is to not parse anything. E.g. $ ./tools/testing/kunit/kunit.py run --raw_output=kunit ... [15:24:07] Starting KUnit Kernel ... TAP version 14 1..1 # Subtest: example 1..3 # example_simple_test: initializing ok 1 - example_simple_test # example_skip_test: initializing # example_skip_test: You should not see a line below. ok 2 - example_skip_test # SKIP this test should be skipped # example_mark_skipped_test: initializing # example_mark_skipped_test: You should see a line below. # example_mark_skipped_test: You should see this line. ok 3 - example_mark_skipped_test # SKIP this test should be skipped ok 1 - example [15:24:10] Elapsed time: 6.487s total, 0.001s configuring, 3.510s building, 0.000s running Signed-off-by: Daniel Latypov <dlatypov(a)google.com> --- Documentation/dev-tools/kunit/kunit-tool.rst | 9 ++++++--- tools/testing/kunit/kunit.py | 20 +++++++++++++++----- tools/testing/kunit/kunit_parser.py | 4 ---- tools/testing/kunit/kunit_tool_test.py | 9 +++++++++ 4 files changed, 30 insertions(+), 12 deletions(-) diff --git a/Documentation/dev-tools/kunit/kunit-tool.rst b/Documentation/dev-tools/kunit/kunit-tool.rst index c7ff9afe407a..ae52e0f489f9 100644 --- a/Documentation/dev-tools/kunit/kunit-tool.rst +++ b/Documentation/dev-tools/kunit/kunit-tool.rst @@ -114,9 +114,12 @@ results in TAP format, you can pass the ``--raw_output`` argument. ./tools/testing/kunit/kunit.py run --raw_output -.. note:: - The raw output from test runs may contain other, non-KUnit kernel log - lines. +The raw output from test runs may contain other, non-KUnit kernel log +lines. You can see just KUnit output with ``--raw_output=kunit``: + +.. code-block:: bash + + ./tools/testing/kunit/kunit.py run --raw_output=kunit If you have KUnit results in their raw TAP format, you can parse them and print the human-readable summary with the ``parse`` command for kunit_tool. This diff --git a/tools/testing/kunit/kunit.py b/tools/testing/kunit/kunit.py index 7174377c2172..5a931456e718 100755 --- a/tools/testing/kunit/kunit.py +++ b/tools/testing/kunit/kunit.py @@ -16,6 +16,7 @@ assert sys.version_info >= (3, 7), "Python version is too old" from collections import namedtuple from enum import Enum, auto +from typing import Iterable import kunit_config import kunit_json @@ -114,7 +115,16 @@ def parse_tests(request: KunitParseRequest) -> KunitResult: 'Tests not Parsed.') if request.raw_output: - kunit_parser.raw_output(request.input_data) + output: Iterable[str] = request.input_data + if request.raw_output == 'all': + pass + elif request.raw_output == 'kunit': + output = kunit_parser.extract_tap_lines(output) + else: + print(f'Unknown --raw_output option "{request.raw_output}"', file=sys.stderr) + for line in output: + print(line.rstrip()) + else: test_result = kunit_parser.parse_run_tests(request.input_data) parse_end = time.time() @@ -135,7 +145,6 @@ def parse_tests(request: KunitParseRequest) -> KunitResult: return KunitResult(KunitStatus.SUCCESS, test_result, parse_end - parse_start) - def run_tests(linux: kunit_kernel.LinuxSourceTree, request: KunitRequest) -> KunitResult: run_start = time.time() @@ -181,7 +190,7 @@ def add_common_opts(parser) -> None: parser.add_argument('--build_dir', help='As in the make command, it specifies the build ' 'directory.', - type=str, default='.kunit', metavar='build_dir') + type=str, default='.kunit', metavar='build_dir') parser.add_argument('--make_options', help='X=Y make option, can be repeated.', action='append') @@ -246,8 +255,9 @@ def add_exec_opts(parser) -> None: action='append') def add_parse_opts(parser) -> None: - parser.add_argument('--raw_output', help='don\'t format output from kernel', - action='store_true') + parser.add_argument('--raw_output', help='If set don\'t format output from kernel. ' + 'If set to --raw_output=kunit, filters to just KUnit output.', + type=str, nargs='?', const='all', default=None) parser.add_argument('--json', nargs='?', help='Stores test results in a JSON, and either ' diff --git a/tools/testing/kunit/kunit_parser.py b/tools/testing/kunit/kunit_parser.py index b88db3f51dc5..84938fefbac0 100644 --- a/tools/testing/kunit/kunit_parser.py +++ b/tools/testing/kunit/kunit_parser.py @@ -106,10 +106,6 @@ def extract_tap_lines(kernel_output: Iterable[str]) -> LineStream: yield line_num, line[prefix_len:] return LineStream(lines=isolate_kunit_output(kernel_output)) -def raw_output(kernel_output) -> None: - for line in kernel_output: - print(line.rstrip()) - DIVIDER = '=' * 60 RESET = '\033[0;0m' diff --git a/tools/testing/kunit/kunit_tool_test.py b/tools/testing/kunit/kunit_tool_test.py index 628ab00f74bc..619c4554cbff 100755 --- a/tools/testing/kunit/kunit_tool_test.py +++ b/tools/testing/kunit/kunit_tool_test.py @@ -399,6 +399,15 @@ class KUnitMainTest(unittest.TestCase): self.assertNotEqual(call, mock.call(StrContains('Testing complete.'))) self.assertNotEqual(call, mock.call(StrContains(' 0 tests run'))) + def test_run_raw_output_kunit(self): + self.linux_source_mock.run_kernel = mock.Mock(return_value=[]) + kunit.main(['run', '--raw_output=kunit'], self.linux_source_mock) + self.assertEqual(self.linux_source_mock.build_reconfig.call_count, 1) + self.assertEqual(self.linux_source_mock.run_kernel.call_count, 1) + for call in self.print_mock.call_args_list: + self.assertNotEqual(call, mock.call(StrContains('Testing complete.'))) + self.assertNotEqual(call, mock.call(StrContains(' 0 tests run'))) + def test_exec_timeout(self): timeout = 3453 kunit.main(['exec', '--timeout', str(timeout)], self.linux_source_mock) base-commit: f684616e08e9cd9db3cd53fe2e068dfe02481657 -- 2.32.0.554.ge1b32706d8-goog

4 years, 3 months

1
1
0 0

[PATCH v2 2/3] kunit: Add support for suite initialization and cleanup

by Bart Van Assche

Reviewed-by: Brendan Higgins <brendanhiggins(a)google.com> Cc: David Gow <davidgow(a)google.com> Cc: Shuah Khan <skhan(a)linuxfoundation.org> Cc: kunit-dev(a)googlegroups.com Cc: linux-kselftest(a)vger.kernel.org Cc: Bodo Stroesser <bostroesser(a)gmail.com> Cc: Martin K. Petersen <martin.petersen(a)oracle.com> Cc: Yanko Kaneti <yaneti(a)declera.com> Signed-off-by: Bart Van Assche <bvanassche(a)acm.org> --- include/kunit/test.h | 4 ++++ lib/kunit/test.c | 14 ++++++++++++++ 2 files changed, 18 insertions(+) diff --git a/include/kunit/test.h b/include/kunit/test.h index 24b40e5c160b..a6eef96a409c 100644 --- a/include/kunit/test.h +++ b/include/kunit/test.h @@ -215,6 +215,8 @@ static inline char *kunit_status_to_ok_not_ok(enum kunit_status status) * struct kunit_suite - describes a related collection of &struct kunit_case * * @name: the name of the test. Purely informational. + * @init_suite: called once per test suite before the test cases. + * @exit_suite: called once per test suite after all test cases. * @init: called before every test case. * @exit: called after every test case. * @test_cases: a null terminated array of test cases. @@ -229,6 +231,8 @@ static inline char *kunit_status_to_ok_not_ok(enum kunit_status status) */ struct kunit_suite { const char name[256]; + int (*init_suite)(void); + void (*exit_suite)(void); int (*init)(struct kunit *test); void (*exit)(struct kunit *test); struct kunit_case *test_cases; diff --git a/lib/kunit/test.c b/lib/kunit/test.c index d79ecb86ea57..c271692ced93 100644 --- a/lib/kunit/test.c +++ b/lib/kunit/test.c @@ -397,9 +397,19 @@ int kunit_run_tests(struct kunit_suite *suite) { char param_desc[KUNIT_PARAM_DESC_SIZE]; struct kunit_case *test_case; + int res = 0; kunit_print_subtest_start(suite); + if (suite->init_suite) + res = suite->init_suite(); + + if (res < 0) { + kunit_log(KERN_INFO, suite, KUNIT_SUBTEST_INDENT + "# Suite initialization failed (%d)\n", res); + goto end; + } + kunit_suite_for_each_test_case(suite, test_case) { struct kunit test = { .param_value = NULL, .param_index = 0 }; test_case->status = KUNIT_SKIPPED; @@ -439,6 +449,10 @@ int kunit_run_tests(struct kunit_suite *suite) test.status_comment); } + if (suite->exit_suite) + suite->exit_suite(); + +end: kunit_print_subtest_end(suite); return 0;

4 years, 3 months

3
7
0 0

[PATCH v2 0/4] kselftest/arm64: Vector length configuration tests

by Mark Brown

Currently we don't have full automated tests for the vector length configuation ABIs offered for SVE, we have a helper binary for setting the vector length which can be used for manual tests and we use the prctl() interface to enumerate the vector lengths but don't actually verify that the vector lengths enumerated were set. This patch series provides a small helper which allows us to get the currently configured vector length using the RDVL instruction via either a library call or stdout of a process and then uses this to both add verification of enumerated vector lengths to our existing tests and also add a new test program which exercises both the prctl() and sysfs interfaces. In preparation for the forthcomng support for the Scalable Matrix Extension (SME) [1] which introduces a new vector length managed via a very similar hardware interface the helper and new test program are parameterised with the goal of allowing reuse for SME. [1] https://community.arm.com/developer/ip-products/processors/b/processors-ip-… v2: - Tweak log message on failure in sve-probe-vls. - Stylistic changes in vec-syscfg. - Flush stdout before forking in vec-syscfg. - Use EXIT_FAILURE. - Use fdopen() to get child output. - Replace a bunch of UNIX API usage with stdio. - Add a TODO list. - Verify that we're root before testing writes to /proc. Mark Brown (4): kselftest/arm64: Provide a helper binary and "library" for SVE RDVL kselftest/arm64: Validate vector lengths are set in sve-probe-vls kselftest/arm64: Add tests for SVE vector configuration kselftest/arm64: Add a TODO list for floating point tests tools/testing/selftests/arm64/fp/.gitignore | 2 + tools/testing/selftests/arm64/fp/Makefile | 11 +- tools/testing/selftests/arm64/fp/TODO | 3 + tools/testing/selftests/arm64/fp/rdvl-sve.c | 14 + tools/testing/selftests/arm64/fp/rdvl.S | 9 + tools/testing/selftests/arm64/fp/rdvl.h | 8 + .../selftests/arm64/fp/sve-probe-vls.c | 5 + tools/testing/selftests/arm64/fp/vec-syscfg.c | 580 ++++++++++++++++++ 8 files changed, 629 insertions(+), 3 deletions(-) create mode 100644 tools/testing/selftests/arm64/fp/TODO create mode 100644 tools/testing/selftests/arm64/fp/rdvl-sve.c create mode 100644 tools/testing/selftests/arm64/fp/rdvl.S create mode 100644 tools/testing/selftests/arm64/fp/rdvl.h create mode 100644 tools/testing/selftests/arm64/fp/vec-syscfg.c base-commit: ff1176468d368232b684f75e82563369208bc371 -- 2.20.1

4 years, 3 months

3
12
0 0

Re: [PATCH 3/4] kunit: Add support for suite initialization and cleanup

by Brendan Higgins

On Fri, Jul 23, 2021 at 2:24 PM Bart Van Assche <bvanassche(a)acm.org> wrote: > > Cc: Brendan Higgins <brendanhiggins(a)google.com> > Cc: Bodo Stroesser <bostroesser(a)gmail.com> > Cc: Martin K. Petersen <martin.petersen(a)oracle.com> > Cc: Yanko Kaneti <yaneti(a)declera.com> Please also CC davidgow(a)google.com, skhan(a)linuxfoundation.org, kunit-dev(a)googlegroups.com, and linux-kselftest(a)vger.kernel.org for KUnit changes in the future. > Signed-off-by: Bart Van Assche <bvanassche(a)acm.org> This seems pretty sensible. Reviewed-by: Brendan Higgins <brendanhiggins(a)google.com> > --- > include/kunit/test.h | 4 ++++ > lib/kunit/test.c | 14 ++++++++++++++ > 2 files changed, 18 insertions(+) > > diff --git a/include/kunit/test.h b/include/kunit/test.h > index 24b40e5c160b..a6eef96a409c 100644 > --- a/include/kunit/test.h > +++ b/include/kunit/test.h > @@ -215,6 +215,8 @@ static inline char *kunit_status_to_ok_not_ok(enum kunit_status status) > * struct kunit_suite - describes a related collection of &struct kunit_case > * > * @name: the name of the test. Purely informational. > + * @init_suite: called once per test suite before the test cases. > + * @exit_suite: called once per test suite after all test cases. > * @init: called before every test case. > * @exit: called after every test case. > * @test_cases: a null terminated array of test cases. > @@ -229,6 +231,8 @@ static inline char *kunit_status_to_ok_not_ok(enum kunit_status status) > */ > struct kunit_suite { > const char name[256]; > + int (*init_suite)(void); > + void (*exit_suite)(void); I like this idea. Many other unit testing libraries in other languages have something similar. I think it probably makes sense to not use any kind of context object here (as you have done); nevertheless, I still think it is an appropriate question for the list. > int (*init)(struct kunit *test); > void (*exit)(struct kunit *test); > struct kunit_case *test_cases; > diff --git a/lib/kunit/test.c b/lib/kunit/test.c > index d79ecb86ea57..c271692ced93 100644 > --- a/lib/kunit/test.c > +++ b/lib/kunit/test.c > @@ -397,9 +397,19 @@ int kunit_run_tests(struct kunit_suite *suite) > { > char param_desc[KUNIT_PARAM_DESC_SIZE]; > struct kunit_case *test_case; > + int res = 0; > > kunit_print_subtest_start(suite); > > + if (suite->init_suite) > + res = suite->init_suite(); > + > + if (res < 0) { > + kunit_log(KERN_INFO, suite, KUNIT_SUBTEST_INDENT > + "# Suite initialization failed (%d)\n", res); > + goto end; > + } > + > kunit_suite_for_each_test_case(suite, test_case) { > struct kunit test = { .param_value = NULL, .param_index = 0 }; > test_case->status = KUNIT_SKIPPED; > @@ -439,6 +449,10 @@ int kunit_run_tests(struct kunit_suite *suite) > test.status_comment); > } > > + if (suite->exit_suite) > + suite->exit_suite(); > + > +end: > kunit_print_subtest_end(suite); > > return 0;

4 years, 3 months

2
1
0 0

[PATCH v1 0/3] kselftest/arm64: Vector length configuration tests

by Mark Brown

Currently we don't have full automated tests for the vector length configuation ABIs offered for SVE, we have a helper binary for setting the vector length which can be used for manual tests and we use the prctl() interface to enumerate the vector lengths but don't actually verify that the vector lengths enumerated were set. This patch series provides a small helper which allows us to get the currently configured vector length using the RDVL instruction via either a library call or stdout of a process and then uses this to both add verification of enumerated vector lengths to our existing tests and also add a new test program which exercises both the prctl() and sysfs interfaces. In preparation for the forthcomng support for the Scalable Matrix Extension (SME) [1] which introduces a new vector length managed via a very similar hardware interface the helper and new test program are parameterised with the goal of allowing reuse for SME. [1] https://community.arm.com/developer/ip-products/processors/b/processors-ip-… Mark Brown (3): kselftest/arm64: Provide a helper binary and "library" for SVE RDVL kselftest/arm64: Validate vector lengths are set in sve-probe-vls kselftest/arm64: Add tests for SVE vector configuration tools/testing/selftests/arm64/fp/.gitignore | 2 + tools/testing/selftests/arm64/fp/Makefile | 11 +- tools/testing/selftests/arm64/fp/rdvl-sve.c | 14 + tools/testing/selftests/arm64/fp/rdvl.S | 9 + tools/testing/selftests/arm64/fp/rdvl.h | 8 + .../selftests/arm64/fp/sve-probe-vls.c | 5 + tools/testing/selftests/arm64/fp/vec-syscfg.c | 578 ++++++++++++++++++ 7 files changed, 624 insertions(+), 3 deletions(-) create mode 100644 tools/testing/selftests/arm64/fp/rdvl-sve.c create mode 100644 tools/testing/selftests/arm64/fp/rdvl.S create mode 100644 tools/testing/selftests/arm64/fp/rdvl.h create mode 100644 tools/testing/selftests/arm64/fp/vec-syscfg.c base-commit: ff1176468d368232b684f75e82563369208bc371 -- 2.20.1

4 years, 3 months

2
14
0 0

[PATCH] kernel/module: add documentation for try_module_get()

by Luis Chamberlain

There is quite a bit of tribal knowledge around proper use of try_module_get() and that it must be used only in a context which can ensure the module won't be gone during the operation. Document this little bit of tribal knowledge. Signed-off-by: Luis Chamberlain <mcgrof(a)kernel.org> --- kernel/module.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/kernel/module.c b/kernel/module.c index ed13917ea5f3..0d609647a54d 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -1066,6 +1066,28 @@ void __module_get(struct module *module) } EXPORT_SYMBOL(__module_get); +/** + * try_module_get - yields to module removal and bumps reference count otherwise + * @module: the module we should check for + * + * This can be used to check if userspace has requested to remove a module, + * and if so let the caller give up. Otherwise it takes a reference count to + * ensure a request from userspace to remove the module cannot happen. + * + * Care must be taken to ensure the module cannot be removed during + * try_module_get(). This can be done by having another entity other than the + * module itself increment the module reference count, or through some other + * means which gaurantees the module could not be removed during an operation. + * An example of this later case is using this call in a sysfs file which the + * module created. The sysfs store / read file operation is ensured to exist + * and still be present by kernfs's active reference. If a sysfs file operation + * is being run, the module which created it must still exist as the module is + * in charge of removal of the sysfs file. + * + * The real value to try_module_get() is the module_is_live() check which + * ensures this the caller of try_module_get() can yields to userspace module + * removal requests and fail whatever it was about to process. + */ bool try_module_get(struct module *module) { bool ret = true; -- 2.30.2

4 years, 3 months

5
10
0 0

[PATCH] net: netfilter: Fix port selection of FTP for NF_NAT_RANGE_PROTO_SPECIFIED

by Cole Dishington

FTP port selection ignores specified port ranges (with iptables masquerade --to-ports) when creating an expectation, based on FTP commands PORT or PASV, for the data connection. Co-developed-by: Anthony Lineham <anthony.lineham(a)alliedtelesis.co.nz> Signed-off-by: Anthony Lineham <anthony.lineham(a)alliedtelesis.co.nz> Co-developed-by: Scott Parlane <scott.parlane(a)alliedtelesis.co.nz> Signed-off-by: Scott Parlane <scott.parlane(a)alliedtelesis.co.nz> Co-developed-by: Blair Steven <blair.steven(a)alliedtelesis.co.nz> Signed-off-by: Blair Steven <blair.steven(a)alliedtelesis.co.nz> Signed-off-by: Cole Dishington <Cole.Dishington(a)alliedtelesis.co.nz> --- Notes: Currently with iptables -t nat -j MASQUERADE -p tcp --to-ports 10000-10005, creating a passive ftp connection from a client will result in the control connection being within the specified port range but the data connection being outside of the range. This patch fixes this behaviour to have both connections be in the specified range. include/net/netfilter/nf_conntrack.h | 3 +++ net/netfilter/nf_nat_core.c | 10 ++++++---- net/netfilter/nf_nat_ftp.c | 26 ++++++++++++-------------- net/netfilter/nf_nat_helper.c | 12 ++++++++---- 4 files changed, 29 insertions(+), 22 deletions(-) diff --git a/include/net/netfilter/nf_conntrack.h b/include/net/netfilter/nf_conntrack.h index cc663c68ddc4..b98d5d04c7ab 100644 --- a/include/net/netfilter/nf_conntrack.h +++ b/include/net/netfilter/nf_conntrack.h @@ -24,6 +24,8 @@ #include <net/netfilter/nf_conntrack_tuple.h> +#include <uapi/linux/netfilter/nf_nat.h> + struct nf_ct_udp { unsigned long stream_ts; }; @@ -99,6 +101,7 @@ struct nf_conn { #if IS_ENABLED(CONFIG_NF_NAT) struct hlist_node nat_bysource; + struct nf_nat_range2 range; #endif /* all members below initialized via memset */ struct { } __nfct_init_offset; diff --git a/net/netfilter/nf_nat_core.c b/net/netfilter/nf_nat_core.c index 7de595ead06a..4772c8457ef2 100644 --- a/net/netfilter/nf_nat_core.c +++ b/net/netfilter/nf_nat_core.c @@ -360,10 +360,10 @@ find_best_ips_proto(const struct nf_conntrack_zone *zone, * * Per-protocol part of tuple is initialized to the incoming packet. */ -static void nf_nat_l4proto_unique_tuple(struct nf_conntrack_tuple *tuple, - const struct nf_nat_range2 *range, - enum nf_nat_manip_type maniptype, - const struct nf_conn *ct) +void nf_nat_l4proto_unique_tuple(struct nf_conntrack_tuple *tuple, + const struct nf_nat_range2 *range, + enum nf_nat_manip_type maniptype, + const struct nf_conn *ct) { unsigned int range_size, min, max, i, attempts; __be16 *keyptr; @@ -586,6 +586,8 @@ nf_nat_setup_info(struct nf_conn *ct, &ct->tuplehash[IP_CT_DIR_REPLY].tuple); get_unique_tuple(&new_tuple, &curr_tuple, range, ct, maniptype); + if (range) + ct->range = *range; if (!nf_ct_tuple_equal(&new_tuple, &curr_tuple)) { struct nf_conntrack_tuple reply; diff --git a/net/netfilter/nf_nat_ftp.c b/net/netfilter/nf_nat_ftp.c index aace6768a64e..6794aa77162b 100644 --- a/net/netfilter/nf_nat_ftp.c +++ b/net/netfilter/nf_nat_ftp.c @@ -17,6 +17,10 @@ #include <net/netfilter/nf_conntrack_helper.h> #include <net/netfilter/nf_conntrack_expect.h> #include <linux/netfilter/nf_conntrack_ftp.h> +void nf_nat_l4proto_unique_tuple(struct nf_conntrack_tuple *tuple, + const struct nf_nat_range2 *range, + enum nf_nat_manip_type maniptype, + const struct nf_conn *ct); #define NAT_HELPER_NAME "ftp" @@ -74,6 +78,7 @@ static unsigned int nf_nat_ftp(struct sk_buff *skb, struct nf_conn *ct = exp->master; char buffer[sizeof("|1||65535|") + INET6_ADDRSTRLEN]; unsigned int buflen; + int ret; pr_debug("type %i, off %u len %u\n", type, matchoff, matchlen); @@ -86,21 +91,14 @@ static unsigned int nf_nat_ftp(struct sk_buff *skb, * this one. */ exp->expectfn = nf_nat_follow_master; - /* Try to get same port: if not, try to change it. */ - for (port = ntohs(exp->saved_proto.tcp.port); port != 0; port++) { - int ret; - - exp->tuple.dst.u.tcp.port = htons(port); - ret = nf_ct_expect_related(exp, 0); - if (ret == 0) - break; - else if (ret != -EBUSY) { - port = 0; - break; - } - } + /* Find a port that matches the NAT rule */ + nf_nat_l4proto_unique_tuple(&exp->tuple, &ct->range, + dir ? NF_NAT_MANIP_SRC : NF_NAT_MANIP_DST, + ct); + port = ntohs(exp->tuple.dst.u.tcp.port); + ret = nf_ct_expect_related(exp, 0); - if (port == 0) { + if ((ret != 0 && ret != -EBUSY) || port == 0) { nf_ct_helper_log(skb, ct, "all ports in use"); return NF_DROP; } diff --git a/net/netfilter/nf_nat_helper.c b/net/netfilter/nf_nat_helper.c index a263505455fc..912bf50be58a 100644 --- a/net/netfilter/nf_nat_helper.c +++ b/net/netfilter/nf_nat_helper.c @@ -184,10 +184,14 @@ void nf_nat_follow_master(struct nf_conn *ct, /* This must be a fresh one. */ BUG_ON(ct->status & IPS_NAT_DONE_MASK); - /* Change src to where master sends to */ - range.flags = NF_NAT_RANGE_MAP_IPS; - range.min_addr = range.max_addr - = ct->master->tuplehash[!exp->dir].tuple.dst.u3; + if (exp->master && !exp->dir) { + range = exp->master->range; + } else { + /* Change src to where master sends to */ + range.flags = NF_NAT_RANGE_MAP_IPS; + range.min_addr = ct->master->tuplehash[!exp->dir].tuple.dst.u3; + range.max_addr = ct->master->tuplehash[!exp->dir].tuple.dst.u3; + } nf_nat_setup_info(ct, &range, NF_NAT_MANIP_SRC); /* For DST manip, map port here to where it's expected. */ -- 2.32.0

4 years, 3 months

2
1
0 0

[RFC PATCH v1 0/2] Introduce XSAVE/XRSTOR self-test

by Pengfei Xu

The XSAVE feature set supports the saving and restoring of state components such as FPU, which is used for process context switching. In order to ensure that XSAVE works correctly, add XSAVE basic test for XSAVE architecture functionality. This patch set tests XSAVE/XRSTOR instructions on x86 platforms and verify if the XSAVE/XRSTOR works correctly during signal handling. Cases such as signal handling, process creation, other xstate(except FPU) tests for XSAVE check, etc. will be added to the Linux kernel self-test. If appropriate, it is even planned to add the [1] mentioned XSAVE issues reproduce and some XSAVE anomaly tests to the kernel self-test. [1]: https://lore.kernel.org/lkml/0000000000004c453905c30f8334@google.com/ Pengfei Xu (2): selftests/xsave: test basic XSAVE architecture functionality selftests/xsave: add xsave test during signal handling tools/testing/selftests/Makefile | 1 + tools/testing/selftests/xsave/.gitignore | 3 + tools/testing/selftests/xsave/Makefile | 6 + tools/testing/selftests/xsave/xsave_common.h | 246 ++++++++++++++++++ .../selftests/xsave/xsave_instruction.c | 83 ++++++ .../selftests/xsave/xsave_signal_handle.c | 184 +++++++++++++ 6 files changed, 523 insertions(+) create mode 100644 tools/testing/selftests/xsave/.gitignore create mode 100644 tools/testing/selftests/xsave/Makefile create mode 100644 tools/testing/selftests/xsave/xsave_common.h create mode 100644 tools/testing/selftests/xsave/xsave_instruction.c create mode 100644 tools/testing/selftests/xsave/xsave_signal_handle.c -- 2.20.1

4 years, 3 months

2
4
0 0

[PATCH] lib: use of kunit in test_parman.c

by José Aquiles Guedes de Rezende

Convert the parman test module to use the KUnit test framework. This makes thetest clearer by leveraging KUnit's assertion macros and test case definitions,as well as helps standardize on a testing framework. Co-developed-by: Matheus Henrique de Souza Silva <matheushenriquedesouzasilva(a)protonmail.com> Signed-off-by: Matheus Henrique de Souza Silva <matheushenriquedesouzasilva(a)protonmail.com> Signed-off-by: José Aquiles Guedes de Rezende <jjoseaquiless(a)gmail.com> --- lib/test_parman.c | 145 +++++++++++++++++++--------------------------- 1 file changed, 60 insertions(+), 85 deletions(-) diff --git a/lib/test_parman.c b/lib/test_parman.c index 35e32243693c..bd5010f0a412 100644 --- a/lib/test_parman.c +++ b/lib/test_parman.c @@ -41,6 +41,8 @@ #include <linux/err.h> #include <linux/random.h> #include <linux/parman.h> +#include <linux/sched.h> +#include <kunit/test.h> #define TEST_PARMAN_PRIO_SHIFT 7 /* defines number of prios for testing */ #define TEST_PARMAN_PRIO_COUNT BIT(TEST_PARMAN_PRIO_SHIFT) @@ -91,12 +93,14 @@ struct test_parman { static int test_parman_resize(void *priv, unsigned long new_count) { + struct kunit *test = current->kunit_test; struct test_parman *test_parman = priv; struct test_parman_item **prio_array; unsigned long old_count; prio_array = krealloc(test_parman->prio_array, ITEM_PTRS_SIZE(new_count), GFP_KERNEL); + KUNIT_EXPECT_NOT_ERR_OR_NULL(test, prio_array); if (new_count == 0) return 0; if (!prio_array) @@ -214,42 +218,39 @@ static void test_parman_items_fini(struct test_parman *test_parman) } } -static struct test_parman *test_parman_create(const struct parman_ops *ops) +static int test_parman_create(struct kunit *test) { struct test_parman *test_parman; int err; - test_parman = kzalloc(sizeof(*test_parman), GFP_KERNEL); - if (!test_parman) - return ERR_PTR(-ENOMEM); + test_parman = kunit_kzalloc(test, sizeof(*test_parman), GFP_KERNEL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, test_parman); + err = test_parman_resize(test_parman, TEST_PARMAN_BASE_COUNT); - if (err) - goto err_resize; - test_parman->parman = parman_create(ops, test_parman); - if (!test_parman->parman) { - err = -ENOMEM; - goto err_parman_create; - } + KUNIT_ASSERT_EQ(test, err, 0); + + test_parman->parman = parman_create(&test_parman_lsort_ops, test_parman); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, test_parman->parman); + test_parman_rnd_init(test_parman); test_parman_prios_init(test_parman); test_parman_items_init(test_parman); test_parman->run_budget = TEST_PARMAN_RUN_BUDGET; - return test_parman; - -err_parman_create: - test_parman_resize(test_parman, 0); -err_resize: - kfree(test_parman); - return ERR_PTR(err); + test->priv = test_parman; + return 0; } -static void test_parman_destroy(struct test_parman *test_parman) +static void test_parman_destroy(struct kunit *test) { + struct test_parman *test_parman = test->priv; + + if (!test_parman) + return; test_parman_items_fini(test_parman); test_parman_prios_fini(test_parman); parman_destroy(test_parman->parman); test_parman_resize(test_parman, 0); - kfree(test_parman); + kunit_kfree(test, test_parman); } static bool test_parman_run_check_budgets(struct test_parman *test_parman) @@ -265,8 +266,9 @@ static bool test_parman_run_check_budgets(struct test_parman *test_parman) return true; } -static int test_parman_run(struct test_parman *test_parman) +static void test_parman_run(struct kunit *test) { + struct test_parman *test_parman = test->priv; unsigned int i = test_parman_rnd_get(test_parman); int err; @@ -281,8 +283,8 @@ static int test_parman_run(struct test_parman *test_parman) err = parman_item_add(test_parman->parman, &item->prio->parman_prio, &item->parman_item); - if (err) - return err; + KUNIT_ASSERT_EQ(test, err, 0); + test_parman->prio_array[item->parman_item.index] = item; test_parman->used_items++; } else { @@ -294,22 +296,19 @@ static int test_parman_run(struct test_parman *test_parman) } item->used = !item->used; } - return 0; } -static int test_parman_check_array(struct test_parman *test_parman, - bool gaps_allowed) +static void test_parman_check_array(struct kunit *test, bool gaps_allowed) { unsigned int last_unused_items = 0; unsigned long last_priority = 0; unsigned int used_items = 0; int i; + struct test_parman *test_parman = test->priv; - if (test_parman->prio_array_limit < TEST_PARMAN_BASE_COUNT) { - pr_err("Array limit is lower than the base count (%lu < %lu)\n", - test_parman->prio_array_limit, TEST_PARMAN_BASE_COUNT); - return -EINVAL; - } + KUNIT_ASSERT_GE_MSG(test, test_parman->prio_array_limit, TEST_PARMAN_BASE_COUNT, + "Array limit is lower than the base count (%lu < %lu)\n", + test_parman->prio_array_limit, TEST_PARMAN_BASE_COUNT); for (i = 0; i < test_parman->prio_array_limit; i++) { struct test_parman_item *item = test_parman->prio_array[i]; @@ -318,77 +317,53 @@ static int test_parman_check_array(struct test_parman *test_parman, last_unused_items++; continue; } - if (last_unused_items && !gaps_allowed) { - pr_err("Gap found in array even though they are forbidden\n"); - return -EINVAL; - } + + KUNIT_ASSERT_FALSE_MSG(test, last_unused_items && !gaps_allowed, + "Gap found in array even though they are forbidden\n"); last_unused_items = 0; used_items++; - if (item->prio->priority < last_priority) { - pr_err("Item belongs under higher priority then the last one (current: %lu, previous: %lu)\n", - item->prio->priority, last_priority); - return -EINVAL; - } - last_priority = item->prio->priority; + KUNIT_ASSERT_GE_MSG(test, item->prio->priority, last_priority, + "Item belongs under higher priority then the last one (current: %lu, previous: %lu)\n", + item->prio->priority, last_priority); - if (item->parman_item.index != i) { - pr_err("Item has different index in compare to where it actually is (%lu != %d)\n", - item->parman_item.index, i); - return -EINVAL; - } - } + last_priority = item->prio->priority; - if (used_items != test_parman->used_items) { - pr_err("Number of used items in array does not match (%u != %u)\n", - used_items, test_parman->used_items); - return -EINVAL; - } + KUNIT_ASSERT_EQ_MSG(test, item->parman_item.index, (unsigned long)i, + "Item has different index in compare to where it actually is (%lu != %d)\n", + item->parman_item.index, i); - if (last_unused_items >= TEST_PARMAN_RESIZE_STEP_COUNT) { - pr_err("Number of unused item at the end of array is bigger than resize step (%u >= %lu)\n", - last_unused_items, TEST_PARMAN_RESIZE_STEP_COUNT); - return -EINVAL; } - pr_info("Priority array check successful\n"); + KUNIT_ASSERT_EQ_MSG(test, used_items, test_parman->used_items, + "Number of used items in array does not match (%u != %u)\n", + used_items, test_parman->used_items); - return 0; + KUNIT_ASSERT_LT_MSG(test, (unsigned long)last_unused_items, TEST_PARMAN_RESIZE_STEP_COUNT, + "Number of unused item at the end of array is bigger than resize step (%u >= %lu)\n", + last_unused_items, TEST_PARMAN_RESIZE_STEP_COUNT); } -static int test_parman_lsort(void) +static void test_parman_lsort(struct kunit *test) { - struct test_parman *test_parman; - int err; - - test_parman = test_parman_create(&test_parman_lsort_ops); - if (IS_ERR(test_parman)) - return PTR_ERR(test_parman); - - err = test_parman_run(test_parman); - if (err) - goto out; - - err = test_parman_check_array(test_parman, false); - if (err) - goto out; -out: - test_parman_destroy(test_parman); - return err; + test_parman_run(test); + test_parman_check_array(test, false); } -static int __init test_parman_init(void) -{ - return test_parman_lsort(); -} +static struct kunit_case parman_test_case[] = { + KUNIT_CASE(test_parman_lsort), + {} +}; -static void __exit test_parman_exit(void) -{ -} +static struct kunit_suite parman_test_suite = { + .name = "parman", + .init = test_parman_create, + .exit = test_parman_destroy, + .test_cases = parman_test_case, +}; -module_init(test_parman_init); -module_exit(test_parman_exit); +kunit_test_suite(parman_test_suite); MODULE_LICENSE("Dual BSD/GPL"); MODULE_AUTHOR("Jiri Pirko <jiri(a)mellanox.com>"); -- 2.32.0

4 years, 3 months

4
3
0 0

[PATCH RESEND net-next 2/2] tc-testing: Add control-plane selftest for skbmod SKBMOD_F_ECN option

by Peilin Ye

From: Peilin Ye <peilin.ye(a)bytedance.com> Recently we added a new option, SKBMOD_F_ECN, to tc-skbmod(8). Add a control-plane selftest for it. Depends on kernel patch "net/sched: act_skbmod: Add SKBMOD_F_ECN option support", as well as iproute2 patch "tc/skbmod: Introduce SKBMOD_F_ECN option". Reviewed-by: Cong Wang <cong.wang(a)bytedance.com> Signed-off-by: Peilin Ye <peilin.ye(a)bytedance.com> --- .../tc-testing/tc-tests/actions/skbmod.json | 24 +++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/tools/testing/selftests/tc-testing/tc-tests/actions/skbmod.json b/tools/testing/selftests/tc-testing/tc-tests/actions/skbmod.json index 6eb4c4f97060..742f2290973e 100644 --- a/tools/testing/selftests/tc-testing/tc-tests/actions/skbmod.json +++ b/tools/testing/selftests/tc-testing/tc-tests/actions/skbmod.json @@ -417,5 +417,29 @@ "teardown": [ "$TC actions flush action skbmod" ] + }, + { + "id": "fe09", + "name": "Add skbmod action to mark ECN bits", + "category": [ + "actions", + "skbmod" + ], + "setup": [ + [ + "$TC actions flush action skbmod", + 0, + 1, + 255 + ] + ], + "cmdUnderTest": "$TC actions add action skbmod ecn", + "expExitCode": "0", + "verifyCmd": "$TC actions get action skbmod index 1", + "matchPattern": "action order [0-9]*: skbmod pipe ecn", + "matchCount": "1", + "teardown": [ + "$TC actions flush action skbmod" + ] } ] -- 2.20.1

4 years, 3 months

1
0
0 0

[PATCH v2 0/4] selftests: add a new test driver for sysfs

by Luis Chamberlain

This v2 rebases onto the latest linux-next tag, next-20210701. A few changes were needed, namely: 1) changes kernfs_init_failure_injection() to return int instead of void. On the latest linux-next we have a new static build check for this, so this mistake was captured when building. 2) I made kernfs_init_failure_injection static 3) lib/test_sysfs.c moved to the new blk_alloc_disk() added by Christoph as direct queue allocation is no longer supported, ie, blk_alloc_queue() is no longer exported. This work was done by Christoph in preparation to help make add_disk*() callers eventually return an error code and make the error handling much saner. Because of this same change blk_cleanup_queue() is no longer needed so we embrace the shiny new blk_cleanup_disk(). I've put this up on my linux-next git tree [0] under the branch named 20210701-sysfs-fix-races-v2. [0] https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux-next.git/log/?… Luis Chamberlain (4): selftests: add tests_sysfs module kernfs: add initial failure injection support test_sysfs: add support to use kernfs failure injection test_sysfs: demonstrate deadlock fix .../fault-injection/fault-injection.rst | 22 + MAINTAINERS | 9 +- fs/kernfs/Makefile | 1 + fs/kernfs/failure-injection.c | 83 + fs/kernfs/file.c | 13 + fs/kernfs/kernfs-internal.h | 72 + include/linux/kernfs.h | 5 + lib/Kconfig.debug | 23 + lib/Makefile | 1 + lib/test_sysfs.c | 1027 ++++++++++++ tools/testing/selftests/sysfs/Makefile | 12 + tools/testing/selftests/sysfs/config | 5 + tools/testing/selftests/sysfs/sysfs.sh | 1376 +++++++++++++++++ 13 files changed, 2648 insertions(+), 1 deletion(-) create mode 100644 fs/kernfs/failure-injection.c create mode 100644 lib/test_sysfs.c create mode 100644 tools/testing/selftests/sysfs/Makefile create mode 100644 tools/testing/selftests/sysfs/config create mode 100755 tools/testing/selftests/sysfs/sysfs.sh -- 2.27.0

4 years, 3 months

2
12
0 0

[PATCH 0/2] xfrm/compat: Fix xfrm_spdattr_type_t copying

by Dmitry Safonov

Here is the fix for both 32=>64 and 64=>32 bit translators and a selftest that reproduced the issue. Big thanks to YueHaibing for fuzzing and reporting the issue, I really appreciate it! Cc: "David S. Miller" <davem(a)davemloft.net> Cc: Herbert Xu <herbert(a)gondor.apana.org.au> Cc: Jakub Kicinski <kuba(a)kernel.org> Cc: Steffen Klassert <steffen.klassert(a)secunet.com> Cc: YueHaibing <yuehaibing(a)huawei.com> Cc: netdev(a)vger.kernel.org Dmitry Safonov (2): net/xfrm/compat: Copy xfrm_spdattr_type_t atributes selftests/net/ipsec: Add test for xfrm_spdattr_type_t net/xfrm/xfrm_compat.c | 49 ++++++++- tools/testing/selftests/net/ipsec.c | 165 +++++++++++++++++++++++++++- 2 files changed, 207 insertions(+), 7 deletions(-) base-commit: e73f0f0ee7541171d89f2e2491130c7771ba58d3 -- 2.32.0

4 years, 3 months

2
2
0 0

[PATCH net-next 2/2] tc-testing: Add control-plane selftest for skbmod SKBMOD_F_ECN option

by Peilin Ye

From: Peilin Ye <peilin.ye(a)bytedance.com> Recently we added a new option, SKBMOD_F_ECN, to tc-skbmod(8). Add a control-plane selftest for it. Depends on kernel patch "net/sched: act_skbmod: Add SKBMOD_F_ECN option support", as well as iproute2 patch "tc/skbmod: Introduce SKBMOD_F_ECN option". Reviewed-by: Cong Wang <cong.wang(a)bytedance.com> Signed-off-by: Peilin Ye <peilin.ye(a)bytedance.com> --- Hi all, The corresponding iproute2-next patch is here: https://lore.kernel.org/netdev/20210721232053.39077-1-yepeilin.cs@gmail.com/ Thanks, Peilin Ye .../tc-testing/tc-tests/actions/skbmod.json | 24 +++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/tools/testing/selftests/tc-testing/tc-tests/actions/skbmod.json b/tools/testing/selftests/tc-testing/tc-tests/actions/skbmod.json index 6eb4c4f97060..742f2290973e 100644 --- a/tools/testing/selftests/tc-testing/tc-tests/actions/skbmod.json +++ b/tools/testing/selftests/tc-testing/tc-tests/actions/skbmod.json @@ -417,5 +417,29 @@ "teardown": [ "$TC actions flush action skbmod" ] + }, + { + "id": "fe09", + "name": "Add skbmod action to mark ECN bits", + "category": [ + "actions", + "skbmod" + ], + "setup": [ + [ + "$TC actions flush action skbmod", + 0, + 1, + 255 + ] + ], + "cmdUnderTest": "$TC actions add action skbmod ecn", + "expExitCode": "0", + "verifyCmd": "$TC actions get action skbmod index 1", + "matchPattern": "action order [0-9]*: skbmod pipe ecn", + "matchCount": "1", + "teardown": [ + "$TC actions flush action skbmod" + ] } ] -- 2.20.1

4 years, 3 months

1
0
0 0

[PATCH v3] kunit: tool: add --kernel_args to allow setting module params

by Daniel Latypov

kunit.py currently does not make it possible for users to specify module parameters (/kernel arguments more generally) unless one directly tweaks the kunit.py code itself. This hasn't mattered much so far, but this would make it easier to port existing tests that expose module parameters over to KUnit and/or let current KUnit tests take advantage of them. Tested using an kunit internal parameter: $ ./tools/testing/kunit/kunit.py run --kunitconfig=lib/kunit \ --kernel_args=kunit.filter_glob=kunit_status ... Testing complete. 2 tests run. 0 failed. 0 crashed. 0 skipped. Signed-off-by: Daniel Latypov <dlatypov(a)google.com> --- v1 -> v2: s/kernel_arg/kernel_args in documentation v2 -> v3: Fix up kunit_tool_test.py, add a test case. --- .../dev-tools/kunit/running_tips.rst | 10 ++++++++++ tools/testing/kunit/kunit.py | 16 +++++++++++---- tools/testing/kunit/kunit_tool_test.py | 20 +++++++++++++------ 3 files changed, 36 insertions(+), 10 deletions(-) diff --git a/Documentation/dev-tools/kunit/running_tips.rst b/Documentation/dev-tools/kunit/running_tips.rst index 7d99386cf94a..ebaaa2764207 100644 --- a/Documentation/dev-tools/kunit/running_tips.rst +++ b/Documentation/dev-tools/kunit/running_tips.rst @@ -80,6 +80,16 @@ file ``.kunitconfig``, you can just pass in the dir, e.g. automagically, but tests could theoretically depend on incompatible options, so handling that would be tricky. +Setting kernel commandline parameters +------------------------------------- + +You can use ``--kernel_args`` to pass arbitrary kernel arguments, e.g. + +.. code-block:: bash + + $ ./tools/testing/kunit/kunit.py run --kernel_args=param=42 --kernel_args=param2=false + + Generating code coverage reports under UML ------------------------------------------ diff --git a/tools/testing/kunit/kunit.py b/tools/testing/kunit/kunit.py index be8d8d4a4e08..03f3bc406955 100755 --- a/tools/testing/kunit/kunit.py +++ b/tools/testing/kunit/kunit.py @@ -28,12 +28,13 @@ KunitBuildRequest = namedtuple('KunitBuildRequest', ['jobs', 'build_dir', 'alltests', 'make_options']) KunitExecRequest = namedtuple('KunitExecRequest', - ['timeout', 'build_dir', 'alltests', 'filter_glob']) + ['timeout', 'build_dir', 'alltests', + 'filter_glob', 'kernel_args']) KunitParseRequest = namedtuple('KunitParseRequest', ['raw_output', 'input_data', 'build_dir', 'json']) KunitRequest = namedtuple('KunitRequest', ['raw_output','timeout', 'jobs', 'build_dir', 'alltests', 'filter_glob', - 'json', 'make_options']) + 'kernel_args', 'json', 'make_options']) KernelDirectoryPath = sys.argv[0].split('tools/testing/kunit/')[0] @@ -92,6 +93,7 @@ def exec_tests(linux: kunit_kernel.LinuxSourceTree, kunit_parser.print_with_timestamp('Starting KUnit Kernel ...') test_start = time.time() result = linux.run_kernel( + args=request.kernel_args, timeout=None if request.alltests else request.timeout, filter_glob=request.filter_glob, build_dir=request.build_dir) @@ -150,7 +152,8 @@ def run_tests(linux: kunit_kernel.LinuxSourceTree, return build_result exec_request = KunitExecRequest(request.timeout, request.build_dir, - request.alltests, request.filter_glob) + request.alltests, request.filter_glob, + request.kernel_args) exec_result = exec_tests(linux, exec_request) if exec_result.status != KunitStatus.SUCCESS: return exec_result @@ -236,6 +239,9 @@ def add_exec_opts(parser) -> None: nargs='?', default='', metavar='filter_glob') + parser.add_argument('--kernel_args', + help='Kernel command-line parameters. Maybe be repeated', + action='append') def add_parse_opts(parser) -> None: parser.add_argument('--raw_output', help='don\'t format output from kernel', @@ -307,6 +313,7 @@ def main(argv, linux=None): cli_args.build_dir, cli_args.alltests, cli_args.filter_glob, + cli_args.kernel_args, cli_args.json, cli_args.make_options) result = run_tests(linux, request) @@ -361,7 +368,8 @@ def main(argv, linux=None): exec_request = KunitExecRequest(cli_args.timeout, cli_args.build_dir, cli_args.alltests, - cli_args.filter_glob) + cli_args.filter_glob, + cli_args.kernel_args) exec_result = exec_tests(linux, exec_request) parse_request = KunitParseRequest(cli_args.raw_output, exec_result.result, diff --git a/tools/testing/kunit/kunit_tool_test.py b/tools/testing/kunit/kunit_tool_test.py index bdae0e5f6197..93fda23f446c 100755 --- a/tools/testing/kunit/kunit_tool_test.py +++ b/tools/testing/kunit/kunit_tool_test.py @@ -346,7 +346,7 @@ class KUnitMainTest(unittest.TestCase): self.assertEqual(self.linux_source_mock.build_reconfig.call_count, 0) self.assertEqual(self.linux_source_mock.run_kernel.call_count, 1) self.linux_source_mock.run_kernel.assert_called_once_with( - build_dir='.kunit', filter_glob='', timeout=300) + args=None, build_dir='.kunit', filter_glob='', timeout=300) self.print_mock.assert_any_call(StrContains('Testing complete.')) def test_run_passes_args_pass(self): @@ -354,7 +354,7 @@ class KUnitMainTest(unittest.TestCase): self.assertEqual(self.linux_source_mock.build_reconfig.call_count, 1) self.assertEqual(self.linux_source_mock.run_kernel.call_count, 1) self.linux_source_mock.run_kernel.assert_called_once_with( - build_dir='.kunit', filter_glob='', timeout=300) + args=None, build_dir='.kunit', filter_glob='', timeout=300) self.print_mock.assert_any_call(StrContains('Testing complete.')) def test_exec_passes_args_fail(self): @@ -393,7 +393,7 @@ class KUnitMainTest(unittest.TestCase): timeout = 3453 kunit.main(['exec', '--timeout', str(timeout)], self.linux_source_mock) self.linux_source_mock.run_kernel.assert_called_once_with( - build_dir='.kunit', filter_glob='', timeout=timeout) + args=None, build_dir='.kunit', filter_glob='', timeout=timeout) self.print_mock.assert_any_call(StrContains('Testing complete.')) def test_run_timeout(self): @@ -401,7 +401,7 @@ class KUnitMainTest(unittest.TestCase): kunit.main(['run', '--timeout', str(timeout)], self.linux_source_mock) self.assertEqual(self.linux_source_mock.build_reconfig.call_count, 1) self.linux_source_mock.run_kernel.assert_called_once_with( - build_dir='.kunit', filter_glob='', timeout=timeout) + args=None, build_dir='.kunit', filter_glob='', timeout=timeout) self.print_mock.assert_any_call(StrContains('Testing complete.')) def test_run_builddir(self): @@ -409,7 +409,7 @@ class KUnitMainTest(unittest.TestCase): kunit.main(['run', '--build_dir=.kunit'], self.linux_source_mock) self.assertEqual(self.linux_source_mock.build_reconfig.call_count, 1) self.linux_source_mock.run_kernel.assert_called_once_with( - build_dir=build_dir, filter_glob='', timeout=300) + args=None, build_dir=build_dir, filter_glob='', timeout=300) self.print_mock.assert_any_call(StrContains('Testing complete.')) def test_config_builddir(self): @@ -426,7 +426,7 @@ class KUnitMainTest(unittest.TestCase): build_dir = '.kunit' kunit.main(['exec', '--build_dir', build_dir], self.linux_source_mock) self.linux_source_mock.run_kernel.assert_called_once_with( - build_dir=build_dir, filter_glob='', timeout=300) + args=None, build_dir=build_dir, filter_glob='', timeout=300) self.print_mock.assert_any_call(StrContains('Testing complete.')) @mock.patch.object(kunit_kernel, 'LinuxSourceTree') @@ -451,5 +451,13 @@ class KUnitMainTest(unittest.TestCase): cross_compile=None, qemu_config_path=None) + def test_run_kernel_args(self): + kunit.main(['run', '--kernel_args=a=1', '--kernel_args=b=2'], self.linux_source_mock) + self.assertEqual(self.linux_source_mock.build_reconfig.call_count, 1) + self.linux_source_mock.run_kernel.assert_called_once_with( + args=['a=1','b=2'], build_dir='.kunit', filter_glob='', timeout=300) + self.print_mock.assert_any_call(StrContains('Testing complete.')) + + if __name__ == '__main__': unittest.main() base-commit: 8096acd7442e613fad0354fc8dfdb2003cceea0b -- 2.32.0.93.g670b81a890-goog

4 years, 3 months

3
2
0 0

[PATCH v5 0/1] lib: Convert UUID runtime test to KUnit

by André Almeida

Hi, This patch converts existing UUID runtime test to use KUnit framework. Below, there's a comparison between the old output format and the new one. Keep in mind that even if KUnit seems very verbose, this is the corner case where _every_ test has failed. * This is how the current output looks like in success: test_uuid: all 18 tests passed * And when it fails: test_uuid: conversion test #1 failed on LE data: 'c33f4995-3701-450e-9fbf-206a2e98e576' test_uuid: cmp test #2 failed on LE data: 'c33f4995-3701-450e-9fbf-206a2e98e576' test_uuid: cmp test #2 actual data: 'c33f4995-3701-450e-9fbf-206a2e98e576' test_uuid: conversion test #3 failed on BE data: 'c33f4995-3701-450e-9fbf-206a2e98e576' test_uuid: cmp test #4 failed on BE data: 'c33f4995-3701-450e-9fbf-206a2e98e576' test_uuid: cmp test #4 actual data: 'c33f4995-3701-450e-9fbf-206a2e98e576' test_uuid: conversion test #5 failed on LE data: '64b4371c-77c1-48f9-8221-29f054fc023b' test_uuid: cmp test #6 failed on LE data: '64b4371c-77c1-48f9-8221-29f054fc023b' test_uuid: cmp test #6 actual data: '64b4371c-77c1-48f9-8221-29f054fc023b' test_uuid: conversion test #7 failed on BE data: '64b4371c-77c1-48f9-8221-29f054fc023b' test_uuid: cmp test #8 failed on BE data: '64b4371c-77c1-48f9-8221-29f054fc023b' test_uuid: cmp test #8 actual data: '64b4371c-77c1-48f9-8221-29f054fc023b' test_uuid: conversion test #9 failed on LE data: '0cb4ddff-a545-4401-9d06-688af53e7f84' test_uuid: cmp test #10 failed on LE data: '0cb4ddff-a545-4401-9d06-688af53e7f84' test_uuid: cmp test #10 actual data: '0cb4ddff-a545-4401-9d06-688af53e7f84' test_uuid: conversion test #11 failed on BE data: '0cb4ddff-a545-4401-9d06-688af53e7f84' test_uuid: cmp test #12 failed on BE data: '0cb4ddff-a545-4401-9d06-688af53e7f84' test_uuid: cmp test #12 actual data: '0cb4ddff-a545-4401-9d06-688af53e7f84' test_uuid: negative test #13 passed on wrong LE data: 'c33f4995-3701-450e-9fbf206a2e98e576 ' test_uuid: negative test #14 passed on wrong BE data: 'c33f4995-3701-450e-9fbf206a2e98e576 ' test_uuid: negative test #15 passed on wrong LE data: '64b4371c-77c1-48f9-8221-29f054XX023b' test_uuid: negative test #16 passed on wrong BE data: '64b4371c-77c1-48f9-8221-29f054XX023b' test_uuid: negative test #17 passed on wrong LE data: '0cb4ddff-a545-4401-9d06-688af53e' test_uuid: negative test #18 passed on wrong BE data: '0cb4ddff-a545-4401-9d06-688af53e' test_uuid: failed 18 out of 18 tests * Now, here's how it looks like with KUnit: ======== [PASSED] uuid ======== [PASSED] uuid_correct_be [PASSED] uuid_correct_le [PASSED] uuid_wrong_be [PASSED] uuid_wrong_le * And if every test fail with KUnit: ======== [FAILED] uuid ======== [FAILED] uuid_correct_be # uuid_correct_be: ASSERTION FAILED at lib/test_uuid.c:57 Expected uuid_parse(data->uuid, &be) == 1, but uuid_parse(data->uuid, &be) == 0 failed to parse 'c33f4995-3701-450e-9fbf-206a2e98e576' # uuid_correct_be: not ok 1 - c33f4995-3701-450e-9fbf-206a2e98e576 # uuid_correct_be: ASSERTION FAILED at lib/test_uuid.c:57 Expected uuid_parse(data->uuid, &be) == 1, but uuid_parse(data->uuid, &be) == 0 failed to parse '64b4371c-77c1-48f9-8221-29f054fc023b' # uuid_correct_be: not ok 2 - 64b4371c-77c1-48f9-8221-29f054fc023b # uuid_correct_be: ASSERTION FAILED at lib/test_uuid.c:57 Expected uuid_parse(data->uuid, &be) == 1, but uuid_parse(data->uuid, &be) == 0 failed to parse '0cb4ddff-a545-4401-9d06-688af53e7f84' # uuid_correct_be: not ok 3 - 0cb4ddff-a545-4401-9d06-688af53e7f84 not ok 1 - uuid_correct_be [FAILED] uuid_correct_le # uuid_correct_le: ASSERTION FAILED at lib/test_uuid.c:46 Expected guid_parse(data->uuid, &le) == 1, but guid_parse(data->uuid, &le) == 0 failed to parse 'c33f4995-3701-450e-9fbf-206a2e98e576' # uuid_correct_le: not ok 1 - c33f4995-3701-450e-9fbf-206a2e98e576 # uuid_correct_le: ASSERTION FAILED at lib/test_uuid.c:46 Expected guid_parse(data->uuid, &le) == 1, but guid_parse(data->uuid, &le) == 0 failed to parse '64b4371c-77c1-48f9-8221-29f054fc023b' # uuid_correct_le: not ok 2 - 64b4371c-77c1-48f9-8221-29f054fc023b # uuid_correct_le: ASSERTION FAILED at lib/test_uuid.c:46 Expected guid_parse(data->uuid, &le) == 1, but guid_parse(data->uuid, &le) == 0 failed to parse '0cb4ddff-a545-4401-9d06-688af53e7f84' # uuid_correct_le: not ok 3 - 0cb4ddff-a545-4401-9d06-688af53e7f84 not ok 2 - uuid_correct_le [FAILED] uuid_wrong_be # uuid_wrong_be: ASSERTION FAILED at lib/test_uuid.c:77 Expected uuid_parse(*data, &be) == 0, but uuid_parse(*data, &be) == -22 parsing of 'c33f4995-3701-450e-9fbf206a2e98e576 ' should've failed # uuid_wrong_be: not ok 1 - c33f4995-3701-450e-9fbf206a2e98e576 # uuid_wrong_be: ASSERTION FAILED at lib/test_uuid.c:77 Expected uuid_parse(*data, &be) == 0, but uuid_parse(*data, &be) == -22 parsing of '64b4371c-77c1-48f9-8221-29f054XX023b' should've failed # uuid_wrong_be: not ok 2 - 64b4371c-77c1-48f9-8221-29f054XX023b # uuid_wrong_be: ASSERTION FAILED at lib/test_uuid.c:77 Expected uuid_parse(*data, &be) == 0, but uuid_parse(*data, &be) == -22 parsing of '0cb4ddff-a545-4401-9d06-688af53e' should've failed # uuid_wrong_be: not ok 3 - 0cb4ddff-a545-4401-9d06-688af53e not ok 3 - uuid_wrong_be [FAILED] uuid_wrong_le # uuid_wrong_le: ASSERTION FAILED at lib/test_uuid.c:68 Expected guid_parse(*data, &le) == 0, but guid_parse(*data, &le) == -22 parsing of 'c33f4995-3701-450e-9fbf206a2e98e576 ' should've failed # uuid_wrong_le: not ok 1 - c33f4995-3701-450e-9fbf206a2e98e576 # uuid_wrong_le: ASSERTION FAILED at lib/test_uuid.c:68 Expected guid_parse(*data, &le) == 0, but guid_parse(*data, &le) == -22 parsing of '64b4371c-77c1-48f9-8221-29f054XX023b' should've failed # uuid_wrong_le: not ok 2 - 64b4371c-77c1-48f9-8221-29f054XX023b # uuid_wrong_le: ASSERTION FAILED at lib/test_uuid.c:68 Expected guid_parse(*data, &le) == 0, but guid_parse(*data, &le) == -22 parsing of '0cb4ddff-a545-4401-9d06-688af53e' should've failed # uuid_wrong_le: not ok 3 - 0cb4ddff-a545-4401-9d06-688af53e not ok 4 - uuid_wrong_le Changes from v4: - Add reviewed-by v4: https://lore.kernel.org/lkml/20210621133148.9226-1-andrealmeid@collabora.co… Changes from v3: - Drop unnecessary casts and braces. - Simplify Kconfig entry v3: https://lore.kernel.org/lkml/20210610163959.71634-1-andrealmeid@collabora.c… Changes from v2: - Clarify in commit message the new test cases setup v2: https://lore.kernel.org/lkml/20210609233730.164082-1-andrealmeid@collabora.… Changes from v1: - Test suite name: uuid_test -> uuid - Config name: TEST_UUID -> UUID_KUNIT_TEST - Config entry in the Kconfig file left where it is - Converted tests to use _MSG variant v1: https://lore.kernel.org/lkml/20210605215215.171165-1-andrealmeid@collabora.… André Almeida (1): lib: Convert UUID runtime test to KUnit lib/Kconfig.debug | 8 ++- lib/Makefile | 2 +- lib/test_uuid.c | 137 +++++++++++++++++++--------------------------- 3 files changed, 64 insertions(+), 83 deletions(-) -- 2.32.0

4 years, 3 months

2
2
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[PATCH V2 0/3] riscv: add support for restartable sequence

by Vincent Chen

Add RSEQ, restartable sequence, support and related selftest to RISCV. The Kconfig option HAVE_REGS_AND_STACK_ACCESS_API is also required by RSEQ because RSEQ will modify the content of pt_regs.sepc through instruction_pointer_set() during the fixup procedure. In order to select the config HAVE_REGS_AND_STACK_ACCESS_API, the missing APIs for accessing pt_regs are also added in this patch set. The relevant RSEQ tests in kselftest require the Binutils patch "RISC-V: Fix linker problems with TLS copy relocs" to avoid placing PREINIT_ARRAY and TLS variable of librseq.so at the same address. https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=commit;h=3e7bd7f… A segmental fault will happen if binutils misses this patch. Patrick Stählin (1): riscv: add required functions to enable HAVE_REGS_AND_STACK_ACCESS_API Vincent Chen (2): riscv: Add support for restartable sequence rseq/selftests: Add support for riscv Changes since v1: 1. Use the correct register name to access pt_regs arch/riscv/Kconfig | 2 + arch/riscv/include/asm/ptrace.h | 29 +- arch/riscv/kernel/entry.S | 4 + arch/riscv/kernel/ptrace.c | 99 +++++ arch/riscv/kernel/signal.c | 2 + tools/testing/selftests/rseq/param_test.c | 23 ++ tools/testing/selftests/rseq/rseq-riscv.h | 622 ++++++++++++++++++++++++++++++ tools/testing/selftests/rseq/rseq.h | 2 + 8 files changed, 782 insertions(+), 1 deletion(-) create mode 100644 tools/testing/selftests/rseq/rseq-riscv.h -- 2.7.4

4 years, 3 months

3
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0 0

[PATCH bpf-next 0/3] libbpf: btf typed data dumping fixes (__int128 usage, error propagation)

by Alan Maguire

This series aims to resolve further issues with the BTF typed data dumping interfaces in libbpf. Compilation failures with use of __int128 on 32-bit platforms were reported [1]. As a result, the use of __int128 in libbpf typed data dumping is replaced with __u64 usage for bitfield manipulations. In the case of 128-bit integer values, they are simply split into two 64-bit hex values for display (patch 1). Tests are added for __int128 display in patch 2, using conditional compilation to avoid problems with a lack of __int128 support. Patch 3 resolves an issue Andrii noted about error propagation when handling enum data display. More followup work is required to ensure multi-dimensional char array display works correctly. [1] https://lore.kernel.org/bpf/1626362126-27775-1-git-send-email-alan.maguire@… Alan Maguire (3): libbpf: avoid use of __int128 in typed dump display selftests/bpf: add __int128-specific tests for typed data dump libbpf: propagate errors when retrieving enum value for typed data display tools/lib/bpf/btf_dump.c | 67 +++++++++++++---------- tools/testing/selftests/bpf/prog_tests/btf_dump.c | 17 ++++++ 2 files changed, 55 insertions(+), 29 deletions(-) -- 1.8.3.1

4 years, 3 months

2
6
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[PATCH] lib/test: convert test_min_heap.c to use KUnit

by Daniel Latypov

We leave the file names and Kconfig option unchanged for now to minimize disruption. So functionally, this just means that the test output will be slightly changed and it'll now depend on CONFIG_KUNIT=y/m. It'll still run at boot time and can still be built as a loadable module, but it can now be run a bit more easily via: $ ./tools/testing/kunit/kunit.py run By default, the above command will run with CONFIG_KUNIT_ALL_TESTS=y. Users could run this test individually via something like: $ ./tools/testing/kunit/kunit.py run --kunitconfig /dev/stdin <<EOF CONFIG_KUNIT=y CONFIG_TEST_MIN_HEAP=y EOF Example output: [14:57:54] ============================================================ [14:57:54] ======== [PASSED] lib_minmax_heap ======== [14:57:54] [PASSED] test_min_heap [14:57:54] [PASSED] test_max_heap [14:57:54] ============================================================ [14:57:54] Testing complete. 2 tests run. 0 failed. 0 crashed. 0 skipped. [14:57:54] Elapsed time: 39.696s total, 0.001s configuring, 36.705s building, 0.000s running Note: this is the time it took after a `make mrproper`. Signed-off-by: Daniel Latypov <dlatypov(a)google.com> --- lib/Kconfig.debug | 5 ++- lib/test_min_heap.c | 102 ++++++++++++++++++++------------------------ 2 files changed, 49 insertions(+), 58 deletions(-) diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 831212722924..36e9529ede65 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -2068,8 +2068,9 @@ config TEST_LIST_SORT If unsure, say N. config TEST_MIN_HEAP - tristate "Min heap test" - depends on DEBUG_KERNEL || m + tristate "Min heap test" if !KUNIT_ALL_TESTS + depends on KUNIT + default KUNIT_ALL_TESTS help Enable this to turn on min heap function tests. This test is executed only once during system boot (so affects only boot time), diff --git a/lib/test_min_heap.c b/lib/test_min_heap.c index d19c8080fd4d..c0f1ef78c08e 100644 --- a/lib/test_min_heap.c +++ b/lib/test_min_heap.c @@ -1,27 +1,27 @@ // SPDX-License-Identifier: GPL-2.0-only -#define pr_fmt(fmt) "min_heap_test: " fmt - /* * Test cases for the min max heap. */ +#include <kunit/test.h> + #include <linux/log2.h> #include <linux/min_heap.h> #include <linux/module.h> #include <linux/printk.h> #include <linux/random.h> -static __init bool less_than(const void *lhs, const void *rhs) +static bool less_than(const void *lhs, const void *rhs) { return *(int *)lhs < *(int *)rhs; } -static __init bool greater_than(const void *lhs, const void *rhs) +static bool greater_than(const void *lhs, const void *rhs) { return *(int *)lhs > *(int *)rhs; } -static __init void swap_ints(void *lhs, void *rhs) +static void swap_ints(void *lhs, void *rhs) { int temp = *(int *)lhs; @@ -29,37 +29,27 @@ static __init void swap_ints(void *lhs, void *rhs) *(int *)rhs = temp; } -static __init int pop_verify_heap(bool min_heap, - struct min_heap *heap, - const struct min_heap_callbacks *funcs) +static void pop_verify_heap(struct kunit *test, bool min_heap, + struct min_heap *heap, + const struct min_heap_callbacks *funcs) { int *values = heap->data; - int err = 0; int last; last = values[0]; min_heap_pop(heap, funcs); while (heap->nr > 0) { if (min_heap) { - if (last > values[0]) { - pr_err("error: expected %d <= %d\n", last, - values[0]); - err++; - } + KUNIT_EXPECT_LE(test, last, values[0]); } else { - if (last < values[0]) { - pr_err("error: expected %d >= %d\n", last, - values[0]); - err++; - } + KUNIT_EXPECT_GE(test, last, values[0]); } last = values[0]; min_heap_pop(heap, funcs); } - return err; } -static __init int test_heapify_all(bool min_heap) +static void test_heapify_all(struct kunit *test, bool min_heap) { int values[] = { 3, 1, 2, 4, 0x8000000, 0x7FFFFFF, 0, -3, -1, -2, -4, 0x8000000, 0x7FFFFFF }; @@ -73,11 +63,11 @@ static __init int test_heapify_all(bool min_heap) .less = min_heap ? less_than : greater_than, .swp = swap_ints, }; - int i, err; + int i; /* Test with known set of values. */ min_heapify_all(&heap, &funcs); - err = pop_verify_heap(min_heap, &heap, &funcs); + pop_verify_heap(test, min_heap, &heap, &funcs); /* Test with randomly generated values. */ @@ -86,12 +76,10 @@ static __init int test_heapify_all(bool min_heap) values[i] = get_random_int(); min_heapify_all(&heap, &funcs); - err += pop_verify_heap(min_heap, &heap, &funcs); - - return err; + pop_verify_heap(test, min_heap, &heap, &funcs); } -static __init int test_heap_push(bool min_heap) +static void test_heap_push(struct kunit *test, bool min_heap) { const int data[] = { 3, 1, 2, 4, 0x80000000, 0x7FFFFFFF, 0, -3, -1, -2, -4, 0x80000000, 0x7FFFFFFF }; @@ -106,25 +94,23 @@ static __init int test_heap_push(bool min_heap) .less = min_heap ? less_than : greater_than, .swp = swap_ints, }; - int i, temp, err; + int i, temp; /* Test with known set of values copied from data. */ for (i = 0; i < ARRAY_SIZE(data); i++) min_heap_push(&heap, &data[i], &funcs); - err = pop_verify_heap(min_heap, &heap, &funcs); + pop_verify_heap(test, min_heap, &heap, &funcs); /* Test with randomly generated values. */ while (heap.nr < heap.size) { temp = get_random_int(); min_heap_push(&heap, &temp, &funcs); } - err += pop_verify_heap(min_heap, &heap, &funcs); - - return err; + pop_verify_heap(test, min_heap, &heap, &funcs); } -static __init int test_heap_pop_push(bool min_heap) +static void test_heap_pop_push(struct kunit *test, bool min_heap) { const int data[] = { 3, 1, 2, 4, 0x80000000, 0x7FFFFFFF, 0, -3, -1, -2, -4, 0x80000000, 0x7FFFFFFF }; @@ -139,7 +125,7 @@ static __init int test_heap_pop_push(bool min_heap) .less = min_heap ? less_than : greater_than, .swp = swap_ints, }; - int i, temp, err; + int i, temp; /* Fill values with data to pop and replace. */ temp = min_heap ? 0x80000000 : 0x7FFFFFFF; @@ -150,7 +136,7 @@ static __init int test_heap_pop_push(bool min_heap) for (i = 0; i < ARRAY_SIZE(data); i++) min_heap_pop_push(&heap, &data[i], &funcs); - err = pop_verify_heap(min_heap, &heap, &funcs); + pop_verify_heap(test, min_heap, &heap, &funcs); heap.nr = 0; for (i = 0; i < ARRAY_SIZE(data); i++) @@ -161,34 +147,38 @@ static __init int test_heap_pop_push(bool min_heap) temp = get_random_int(); min_heap_pop_push(&heap, &temp, &funcs); } - err += pop_verify_heap(min_heap, &heap, &funcs); + pop_verify_heap(test, min_heap, &heap, &funcs); +} - return err; +static void test_heap(struct kunit *test, bool min_heap) +{ + test_heapify_all(test, min_heap); + test_heap_push(test, min_heap); + test_heap_pop_push(test, min_heap); } -static int __init test_min_heap_init(void) +static void test_min_heap(struct kunit *test) { - int err = 0; - - err += test_heapify_all(true); - err += test_heapify_all(false); - err += test_heap_push(true); - err += test_heap_push(false); - err += test_heap_pop_push(true); - err += test_heap_pop_push(false); - if (err) { - pr_err("test failed with %d errors\n", err); - return -EINVAL; - } - pr_info("test passed\n"); - return 0; + test_heap(test, true); } -module_init(test_min_heap_init); -static void __exit test_min_heap_exit(void) +static void test_max_heap(struct kunit *test) { - /* do nothing */ + test_heap(test, false); } -module_exit(test_min_heap_exit); + +static struct kunit_case __refdata minmax_heap_test_cases[] = { + KUNIT_CASE(test_min_heap), + KUNIT_CASE(test_max_heap), + {} +}; + +static struct kunit_suite minmax_heap_test_suite = { + .name = "lib_minmax_heap", + .test_cases = minmax_heap_test_cases, +}; + +kunit_test_suites(&minmax_heap_test_suite); + MODULE_LICENSE("GPL"); base-commit: 2734d6c1b1a089fb593ef6a23d4b70903526fe0c -- 2.32.0.402.g57bb445576-goog

4 years, 3 months

1
1
0 0

[PATCH v6 bpf-next 0/3] libbpf: BTF dumper support for typed data

by Alan Maguire

Add a libbpf dumper function that supports dumping a representation of data passed in using the BTF id associated with the data in a manner similar to the bpf_snprintf_btf helper. Default output format is identical to that dumped by bpf_snprintf_btf() (bar using tabs instead of spaces for indentation, but the indent string can be customized also); for example, a "struct sk_buff" representation would look like this: (struct sk_buff){ (union){ (struct){ .next = (struct sk_buff *)0xffffffffffffffff, .prev = (struct sk_buff *)0xffffffffffffffff, (union){ .dev = (struct net_device *)0xffffffffffffffff, .dev_scratch = (long unsigned int)18446744073709551615, }, }, ... Patch 1 implements the dump functionality in a manner similar to that in kernel/bpf/btf.c, but with a view to fitting into libbpf more naturally. For example, rather than using flags, boolean dump options are used to control output. In addition, rather than combining checks for display (such as is this field zero?) and actual display - as is done for the kernel code - the code is organized to separate zero and overflow checks from type display. Patch 2 adds ASSERT_STRNEQ() for use in the following BTF dumper tests. Patch 3 consists of selftests that utilize a dump printf function to snprintf the dump output to a string for comparison with expected output. Tests deliberately mirror those in snprintf_btf helper test to keep output consistent, but also cover overflow handling, var/section display. Changes since v5 [1] - readjust dump options to avoid unnecessary padding (Andrii, patch 1). - tidied up bitfield data checking/retrieval using Andrii's suggestions. Removed code where we adjust data pointer prior to calling bitfield functions as this adjustment is not needed, provided we use the type size as the number of bytes to iterate over when retrieving the full value we apply bit shifting operations to retrieve the bitfield value. With these chances, the *_int_bits() functions were no longer needed (Andrii, patch 1). - coalesced the "is zero" checking for ints, floats and pointers into btf_dump_base_type_check_zero(), using a memcmp() of the size of the data. This can be derived from t->size for ints and floats, and pointer size is retrieved from dump's ptr_sz field (Andrii, patch 1). - Added alignment-aware handling for int, enum, float retrieval. Packed data structures can force ints, enums and floats to be aligned on different boundaries; for example, the struct p { char f1; int f2; } __attribute__((packed)); ...will have the int f2 field offset at byte 1, rather than at byte 4 for an unpacked structure. The problem is directly dereferencing that as an int is problematic on some platforms. For ints and enums, we can reuse bitfield retrieval to get the value for display, while for floats we use a local union of the floating-point types and memcpy into it, ensuring we can then dereference pointers into that union which will have safe alignment (Andrii, patch 1). - added comments to explain why we increment depth prior to displaying opening parens, and decrement it prior to displaying closing parens for structs, unions and arrays. The reason is that we don't want to have a trailing newline when displaying a type. The logic that handles this says "don't show a newline when the depth we're at is 0". For this to work for opening parens then we need to bump depth before showing opening parens + newline, and when we close out structure we need to show closing parens after reducing depth so that we don't append a newline to a top-level structure. So as a result we have struct foo {\n struct bar {\n }\n } - silently truncate provided indent string with strncat() if > 31 bytes (Andrii, patch 1). - fixed ASSERT_STRNEQ() macro to show only n bytes of string (Andrii, patch 2). - fixed strncat() of type data string to avoid stack corruption (Andrii, patch 3). - removed early returns from dump type tests (Andrii, patch 3). - have tests explicitly specify prefix (enum, struct, union) (Andrii, patch 3). - switch from CHECK() to ASSERT_* where possible (Andrii, patch 3). Changes since v4 [2] - Andrii kindly provided code to unify emitting a prepended cast (for example "(int)") with existing code, and this had the nice benefit of adding array indices in type specifications (Andrii, patches 1, 3) - Fixed indent_str option to make it a const char *, stored in a fixed-length buffer internally (Andrii, patch 1) - Reworked bit shift logic to minimize endian-specific interactions, and use same macros as found elsewhere in libbpf to determine endianness (Andrii, patch 1) - Fixed type emitting to ensure that a trailing '\n' is not displayed; newlines are added during struct/array display, but for a single type the last character is no longer a newline (Andrii, patches 1, 3) - Added support for ASSERT_STRNEQ() macro (Andrii, patch 2) - Split tests into subtests for int, char, enum etc rather than one "dump type data" subtest (Andrii, patch 3) - Made better use of ASSERT* macros (Andrii, patch 3) - Got rid of some other TEST_* macros that were unneeded (Andrii, patch 3) - Switched to using "struct fs_context" to verify enum bitfield values (Andrii, patch 3) Changes since v3 [3] - Retained separation of emitting of type name cast prefixing type values from existing functionality such as btf_dump_emit_type_chain() since initial code-shared version had so many exceptions it became hard to read. For example, we don't emit a type name if the type to be displayed is an array member, we also always emit "forward" definitions for structs/unions that aren't really forward definitions (we just want a "struct foo" output for "(struct foo){.bar = ...". We also always ignore modifiers const/volatile/restrict as they clutter output when emitting large types. - Added configurable 4-char indent string option; defaults to tab (Andrii) - Added support for BTF_KIND_FLOAT and associated tests (Andrii) - Added support for BTF_KIND_FUNC_PROTO function pointers to improve output of "ops" structures; for example: (struct file_operations){ .owner = (struct module *)0xffffffffffffffff, .llseek = (loff_t(*)(struct file *, loff_t, int))0xffffffffffffffff, ... Added associated test also (Andrii) - Added handling for enum bitfields and associated test (Andrii) - Allocation of "struct btf_dump_data" done on-demand (Andrii) - Removed ".field = " output from function emitting type name and into caller (Andrii) - Removed BTF_INT_OFFSET() support (Andrii) - Use libbpf_err() to set errno for error cases (Andrii) - btf_dump_dump_type_data() returns size written, which is used when returning successfully from btf_dump__dump_type_data() (Andrii) Changes since v2 [4] - Renamed function to btf_dump__dump_type_data, reorganized arguments such that opts are last (Andrii) - Modified code to separate questions about display such as have we overflowed?/is this field zero? from actual display of typed data, such that we ask those questions separately from the code that actually displays typed data (Andrii) - Reworked code to handle overflow - where we do not provide enough data for the type we wish to display - by returning -E2BIG and attempting to present as much data as possible. Such a mode of operation allows for tracers which retrieve partial data (such as first 1024 bytes of a "struct task_struct" say), and want to display that partial data, while also knowing that it is not the full type. Such tracers can then denote this (perhaps via "..." or similar). - Explored reusing existing type emit functions, such as passing in a type id stack with a single type id to btf_dump_emit_type_chain() to support the display of typed data where a "cast" is prepended to the data to denote its type; "(int)1", "(struct foo){", etc. However the task of emitting a ".field_name = (typecast)" did not match well with model of walking the stack to display innermost types first and made the resultant code harder to read. Added a dedicated btf_dump_emit_type_name() function instead which is only ~70 lines (Andrii) - Various cleanups around bitfield macros, unneeded member iteration macros, avoiding compiler complaints when displaying int da ta by casting to long long, etc (Andrii) - Use DECLARE_LIBBPF_OPTS() in defining opts for tests (Andrii) - Added more type tests, overflow tests, var tests and section tests. Changes since RFC [5] - The initial approach explored was to share the kernel code with libbpf using #defines to paper over the different needs; however it makes more sense to try and fit in with libbpf code style for maintenance. A comment in the code points at the implementation in kernel/bpf/btf.c and notes that any issues found in it should be fixed there or vice versa; mirroring the tests should help with this also (Andrii) [1] https://lore.kernel.org/bpf/1624092968-5598-1-git-send-email-alan.maguire@o… [2] https://lore.kernel.org/bpf/CAEf4BzYtbnphCkhz0epMKE4zWfvSOiMpu+-SXp9hadsrRA… [3] https://lore.kernel.org/bpf/1622131170-8260-1-git-send-email-alan.maguire@o… [4] https://lore.kernel.org/bpf/1610921764-7526-1-git-send-email-alan.maguire@o… [5] https://lore.kernel.org/bpf/1610386373-24162-1-git-send-email-alan.maguire@… Alan Maguire (3): libbpf: BTF dumper support for typed data selftests/bpf: add ASSERT_STRNEQ() variant for test_progs selftests/bpf: add dump type data tests to btf dump tests tools/lib/bpf/btf.h | 19 + tools/lib/bpf/btf_dump.c | 819 +++++++++++++++++++++- tools/lib/bpf/libbpf.map | 1 + tools/testing/selftests/bpf/prog_tests/btf_dump.c | 600 ++++++++++++++++ tools/testing/selftests/bpf/test_progs.h | 12 + 5 files changed, 1446 insertions(+), 5 deletions(-) -- 1.8.3.1

4 years, 3 months

3
9
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[GIT PULL] Kselftest update for Linux 5.14-rc2

by Shuah Khan

Hi Linus, Please pull the following Kselftest fixes update for Linux 5.14-rc2 This Kselftest fixes update for Linux 5.14-rc2 consists of fix to memory-hotplug hot-remove test to stop spamming logs with dump_page() entries and slowing the system down to a crawl. diff is attached. thanks, -- Shuah ---------------------------------------------------------------- The following changes since commit e73f0f0ee7541171d89f2e2491130c7771ba58d3: Linux 5.14-rc1 (2021-07-11 15:07:40 -0700) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest tags/linux-kselftest-fixes-5.14-rc2 for you to fetch changes up to 0c0f6299ba71faf610e311605e09e96331c45f28: selftests: memory-hotplug: avoid spamming logs with dump_page(), ratio limit hot-remove error test (2021-07-12 14:20:01 -0600) ---------------------------------------------------------------- linux-kselftest-fixes-5.14-rc2 This Kselftest fixes update for Linux 5.14-rc2 consists of fix to memory-hotplug hot-remove test to stop spamming logs with dump_page() entries and slowing the system down to a crawl. ---------------------------------------------------------------- Paolo Pisati (1): selftests: memory-hotplug: avoid spamming logs with dump_page(), ratio limit hot-remove error test tools/testing/selftests/memory-hotplug/mem-on-off-test.sh | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) ----------------------------------------------------------------

4 years, 3 months

2
1
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[GIT PULL] KUnit update for Linux 5.14-rc2

by Shuah Khan

Hi Linus, Please pull the following KUnit fixes update for Linux 5,14-rc2 This KUnit fixes update for Linux 5.14-rc2 consists of fixes to kunit tool and documentation: -- asserts on older python versions. -- fixes to misleading error messages when TAP header format is incorrect or when file is missing. -- fixes documentation dropping obsolete information about uml_abort coverage. -- removing unnecessary annotations diff is attached. Thanks, -- Shuah ---------------------------------------------------------------- The following changes since commit e73f0f0ee7541171d89f2e2491130c7771ba58d3: Linux 5.14-rc1 (2021-07-11 15:07:40 -0700) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest tags/linux-kselftest-kunit-fixes-5.14-rc2 for you to fetch changes up to df4b0807ca1a62822342d404b863eff933d15762: kunit: tool: Assert the version requirement (2021-07-12 14:02:32 -0600) ---------------------------------------------------------------- linux-kselftest-kunit-fixes-5.14-rc2 This KUnit fixes update for Linux 5.14-rc2 consists of fixes to kunit tool and documentation: -- asserts on older python versions. -- fixes to misleading error messages when TAP header format is incorrect or when file is missing. -- fixes documentation dropping obsolete information about uml_abort coverage. -- removing unnecessary annotations ---------------------------------------------------------------- Daniel Latypov (2): Documentation: kunit: drop obsolete note about uml_abort for coverage kunit: tool: remove unnecessary "annotations" import Rae Moar (1): kunit: tool: Fix error messages for cases of no tests and wrong TAP header SeongJae Park (1): kunit: tool: Assert the version requirement Documentation/dev-tools/kunit/running_tips.rst | 14 +------------- tools/testing/kunit/kunit.py | 2 ++ tools/testing/kunit/kunit_kernel.py | 6 ++---- tools/testing/kunit/kunit_parser.py | 6 ++++-- tools/testing/kunit/kunit_tool_test.py | 16 +++++++++++++--- ...og => test_is_test_passed-no_tests_run_no_header.log} | 0 .../test_is_test_passed-no_tests_run_with_header.log | 2 ++ 7 files changed, 24 insertions(+), 22 deletions(-) rename tools/testing/kunit/test_data/{test_is_test_passed-no_tests_run.log => test_is_test_passed-no_tests_run_no_header.log} (100%) create mode 100644 tools/testing/kunit/test_data/test_is_test_passed-no_tests_run_with_header.log ----------------------------------------------------------------

4 years, 3 months

2
1
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[PATCH v8 23/26] selftest/x86/amx: Test cases for the AMX state management

by Chang S. Bae

This selftest verifies that the XSTATE arch_prctl works for AMX state and that a forked task has the AMX state in the INIT-state. In addition, this test verifies that the kernel correctly context switches unique AMX data, when multiple threads are using AMX. The test also verifies that ptrace() can insert data into existing threads. Finally, add a test case to verify that unused states are excluded, by leaving a known pattern on the signal stack and verifying that it is still intact after taking a subsequent signal. These test cases do not depend on AMX compiler support, as they employ userspace-XSAVE directly to access AMX state. Signed-off-by: Chang S. Bae <chang.seok.bae(a)intel.com> Reviewed-by: Len Brown <len.brown(a)intel.com> Cc: linux-kernel(a)vger.kernel.org Cc: linux-kselftest(a)vger.kernel.org --- Changes from v7: * Adjust for SIGILL. * Test XTILECFG for legacy signal delivery. Changes from v6: * Adjust for the syscall and ptrace path changes. Changes from v5: * Adjusted arch_prctl for the updated ABI. * Added test for the dynamic signal xstate buffer. * Fixed XSAVE buffer's header data. Changes from v4: * Added test for arch_prctl. * Excluded tile config details to focus on testing the kernel's ability to manage dynamic user state. * Removed tile instructions. * Simplified the fork() and ptrace() test routine. * Massaged the changelog. Changes from v2: * Updated the test messages and the changelog as tile data is not inherited to a child anymore. * Removed bytecode for the instructions already supported by binutils. * Changed to check the XSAVE availability in a reliable way. Changes from v1: * Removed signal testing code --- tools/testing/selftests/x86/Makefile | 2 +- tools/testing/selftests/x86/amx.c | 954 +++++++++++++++++++++++++++ 2 files changed, 955 insertions(+), 1 deletion(-) create mode 100644 tools/testing/selftests/x86/amx.c diff --git a/tools/testing/selftests/x86/Makefile b/tools/testing/selftests/x86/Makefile index b4142cd1c5c2..8a1f62ab3c8e 100644 --- a/tools/testing/selftests/x86/Makefile +++ b/tools/testing/selftests/x86/Makefile @@ -18,7 +18,7 @@ TARGETS_C_32BIT_ONLY := entry_from_vm86 test_syscall_vdso unwind_vdso \ test_FCMOV test_FCOMI test_FISTTP \ vdso_restorer TARGETS_C_64BIT_ONLY := fsgsbase sysret_rip syscall_numbering \ - corrupt_xstate_header + corrupt_xstate_header amx # Some selftests require 32bit support enabled also on 64bit systems TARGETS_C_32BIT_NEEDED := ldt_gdt ptrace_syscall diff --git a/tools/testing/selftests/x86/amx.c b/tools/testing/selftests/x86/amx.c new file mode 100644 index 000000000000..05373dbd02b9 --- /dev/null +++ b/tools/testing/selftests/x86/amx.c @@ -0,0 +1,954 @@ +// SPDX-License-Identifier: GPL-2.0 + +#define _GNU_SOURCE +#include <err.h> +#include <errno.h> +#include <elf.h> +#include <pthread.h> +#include <setjmp.h> +#include <stdio.h> +#include <string.h> +#include <stdbool.h> +#include <unistd.h> +#include <x86intrin.h> + +#include <linux/futex.h> + +#include <sys/ptrace.h> +#include <sys/shm.h> +#include <sys/syscall.h> +#include <sys/wait.h> +#include <sys/uio.h> + +#ifndef __x86_64__ +# error This test is 64-bit only +#endif + +static inline uint64_t xgetbv(uint32_t index) +{ + uint32_t eax, edx; + + asm volatile("xgetbv;" + : "=a" (eax), "=d" (edx) + : "c" (index)); + return eax + ((uint64_t)edx << 32); +} + +static inline void cpuid(uint32_t *eax, uint32_t *ebx, uint32_t *ecx, uint32_t *edx) +{ + asm volatile("cpuid;" + : "=a" (*eax), "=b" (*ebx), "=c" (*ecx), "=d" (*edx) + : "0" (*eax), "2" (*ecx)); +} + +static inline void xsave(void *xbuf, uint32_t lo, uint32_t hi) +{ + asm volatile("xsave (%%rdi)" + : : "D" (xbuf), "a" (lo), "d" (hi) + : "memory"); +} + +static inline void xrstor(void *xbuf, uint32_t lo, uint32_t hi) +{ + asm volatile("xrstor (%%rdi)" + : : "D" (xbuf), "a" (lo), "d" (hi)); +} + +static void sethandler(int sig, void (*handler)(int, siginfo_t *, void *), + int flags) +{ + struct sigaction sa; + + memset(&sa, 0, sizeof(sa)); + sa.sa_sigaction = handler; + sa.sa_flags = SA_SIGINFO | flags; + sigemptyset(&sa.sa_mask); + if (sigaction(sig, &sa, 0)) + err(1, "sigaction"); +} + +static void clearhandler(int sig) +{ + struct sigaction sa; + + memset(&sa, 0, sizeof(sa)); + sa.sa_handler = SIG_DFL; + sigemptyset(&sa.sa_mask); + if (sigaction(sig, &sa, 0)) + err(1, "sigaction"); +} + +static jmp_buf jmpbuf; + +/* Hardware info check: */ + +static bool noxsave; + +static void handle_noxsave(int sig, siginfo_t *si, void *ctx_void) +{ + noxsave = true; + siglongjmp(jmpbuf, 1); +} + +#define XFEATURE_XTILECFG 17 +#define XFEATURE_XTILEDATA 18 +#define XFEATURE_MASK_XTILECFG (1 << XFEATURE_XTILECFG) +#define XFEATURE_MASK_XTILEDATA (1 << XFEATURE_XTILEDATA) +#define XFEATURE_MASK_XTILE (XFEATURE_MASK_XTILECFG | XFEATURE_MASK_XTILEDATA) + +static inline bool check_xtile(void) +{ + bool xtile_enable; + + sethandler(SIGILL, handle_noxsave, 0); + + if ((!sigsetjmp(jmpbuf, 1)) && (xgetbv(0) & XFEATURE_MASK_XTILE)) { + xtile_enable = true; + goto out; + } + xtile_enable = false; +out: + clearhandler(SIGILL); + return xtile_enable; +} + +static uint32_t xsave_size; +static uint32_t xsave_xtiledata_offset, xsave_xtilecfg_offset; +static uint32_t xtiledata_size, xtilecfg_size; + +static struct _tile_spec { + uint16_t bytes_per_row; + uint16_t max_names; + uint16_t max_rows; +} tile_spec; + +#define XSTATE_CPUID 0xd +#define XSTATE_USER_STATE_SUBLEAVE 0x0 +#define TILE_CPUID 0x1d +#define TILE_PALETTE_ID 0x1 + +static void check_cpuid(void) +{ + uint32_t eax, ebx, ecx, edx; + + eax = XSTATE_CPUID; + ecx = XSTATE_USER_STATE_SUBLEAVE; + + cpuid(&eax, &ebx, &ecx, &edx); + if (!ebx) + err(1, "xstate cpuid: xsave size"); + + xsave_size = ebx; + + eax = XSTATE_CPUID; + ecx = XFEATURE_XTILECFG; + + cpuid(&eax, &ebx, &ecx, &edx); + if (!eax || !ebx) + err(1, "xstate cpuid: tile config state"); + + xtilecfg_size = eax; + xsave_xtilecfg_offset = ebx; + + eax = XSTATE_CPUID; + ecx = XFEATURE_XTILEDATA; + + cpuid(&eax, &ebx, &ecx, &edx); + if (!eax || !ebx) + err(1, "xstate cpuid: tile data state"); + + xtiledata_size = eax; + xsave_xtiledata_offset = ebx; + + eax = TILE_CPUID; + ecx = TILE_PALETTE_ID; + + cpuid(&eax, &ebx, &ecx, &edx); + if (!eax || !ebx || !ecx) + err(1, "tile cpuid: palette 1"); + + tile_spec.max_names = ebx >> 16; + tile_spec.bytes_per_row = ebx; + tile_spec.max_rows = ecx; +} + +/* The helpers for managing XSAVE buffer and tile states: */ + +void *alloc_xsave_buffer(void) +{ + void *xbuf; + + /* XSAVE buffer should be 64B-aligned. */ + xbuf = aligned_alloc(64, xsave_size); + if (!xbuf) + err(1, "aligned_alloc()"); + return xbuf; +} + +#define XSAVE_HDR_OFFSET 512 +#define XSAVE_HDR_SIZE 64 + +static inline void clear_xstate_header(void *buffer) +{ + memset(buffer + XSAVE_HDR_OFFSET, 0, XSAVE_HDR_SIZE); +} + +static inline uint64_t get_xstatebv(void *buffer) +{ + return *(uint64_t *)(buffer + XSAVE_HDR_OFFSET); +} + +static inline void set_xstatebv(void *buffer, uint64_t bv) +{ + *(uint64_t *)(buffer + XSAVE_HDR_OFFSET) = bv; +} + +static void set_rand_tiledata(void *tiledata) +{ + int *ptr = tiledata; + int data = rand(); + int i; + + for (i = 0; i < xtiledata_size / sizeof(int); i++, ptr++) + *ptr = data; +} + +#define MAX_TILES 16 +#define RESERVED_BYTES 14 + +struct tile_config { + uint8_t palette_id; + uint8_t start_row; + uint8_t reserved[RESERVED_BYTES]; + uint16_t colsb[MAX_TILES]; + uint8_t rows[MAX_TILES]; +}; + +static void set_tilecfg(void *tilecfg) +{ + struct tile_config *cfg = tilecfg; + int i; + + memset(cfg, 0, sizeof(*cfg)); + cfg->palette_id = TILE_PALETTE_ID; + for (i = 0; i < tile_spec.max_names; i++) { + cfg->colsb[i] = tile_spec.bytes_per_row; + cfg->rows[i] = tile_spec.max_rows; + } +} + +static void *xsave_buffer, *tiledata, *tilecfg; +static int nerrs, errs; + +/* See 'struct _fpx_sw_bytes' at sigcontext.h */ +#define SW_BYTES_OFFSET 464 +/* N.B. The struct's field name varies so read from the offset. */ +#define SW_BYTES_BV_OFFSET (SW_BYTES_OFFSET + 8) + +static inline struct _fpx_sw_bytes *get_fpx_sw_bytes(void *buffer) +{ + return (struct _fpx_sw_bytes *)(buffer + SW_BYTES_OFFSET); +} + +static inline uint64_t get_fpx_sw_bytes_xstatebv(void *buffer) +{ + return *(uint64_t *)(buffer + SW_BYTES_BV_OFFSET); +} + +static volatile bool noperm; +static bool check_tilecfg; + +static void handle_noperm(int sig, siginfo_t *si, void *ctx_void) +{ + ucontext_t *ctx = (ucontext_t *)ctx_void; + void *xbuf = ctx->uc_mcontext.fpregs; + struct _fpx_sw_bytes *sw_bytes; + + printf("\tAt SIGILL handler,\n"); + + if (si->si_code != ILL_ILLOPC) { + errs++; + printf("[FAIL]\tInvalid signal code (%x).\n", si->si_code); + } else { + printf("[OK]\tValid signal code (ILL_ILLOPC).\n"); + } + + sw_bytes = get_fpx_sw_bytes(xbuf); + if (!(sw_bytes->xstate_size < xsave_xtiledata_offset) && + !(get_fpx_sw_bytes_xstatebv(xbuf) & XFEATURE_MASK_XTILEDATA)) { + printf("[OK]\tValid xstate size and mask in the SW data of xstate buffer.\n"); + } else { + errs++; + printf("[FAIL]\tInvalid xstate size and/or mask in the SW data of xstate buf.\n"); + } + + if (check_tilecfg) { + if (memcmp(tilecfg, xbuf + xsave_xtilecfg_offset, xtilecfg_size)) { + errs++; + printf("[FAIL]\tTILECFG is corrupted.\n"); + } else { + printf("[OK]\tTILECFG is successfully delivered.\n"); + } + } + + noperm = true; + ctx->uc_mcontext.gregs[REG_RIP] += 3; /* Skip the faulting XRSTOR */ +} + +/* Return true if XRSTOR is successful; otherwise, false. */ +static inline bool xrstor_safe(void *buffer, uint32_t lo, uint32_t hi) +{ + noperm = false; + xrstor(buffer, lo, hi); + return !noperm; +} + +/* arch_prctl test */ + +#define ARCH_SET_STATE_ENABLE 0x1021 +#define ARCH_GET_STATE_ENABLE 0x1022 + +static void enable_tiledata(void) +{ + long rc; + + rc = syscall(SYS_arch_prctl, ARCH_SET_STATE_ENABLE, XFEATURE_MASK_XTILEDATA); + if (rc) + goto fail; + + rc = syscall(SYS_arch_prctl, ARCH_GET_STATE_ENABLE, 0); + if (rc & XFEATURE_MASK_XTILEDATA) + return; + +fail: + err(1, "ARCH_SET_STATE_ENABLE"); +} + +#define TEST_EXECV_ARG "nested" + +static void test_arch_prctl(int argc, char **argv) +{ + pid_t parent, child, grandchild; + + parent = fork(); + if (parent < 0) { + err(1, "fork"); + } else if (parent > 0) { + int status; + + wait(&status); + if (!WIFEXITED(status) || WEXITSTATUS(status)) + err(1, "arch_prctl test parent exit"); + return; + } + + printf("[RUN]\tCheck ARCH_SET_STATE_ENABLE around process fork().\n"); + + printf("\tFork a child.\n"); + child = fork(); + if (child < 0) { + err(1, "fork"); + } else if (child > 0) { + int status; + + enable_tiledata(); + printf("\tDo ARCH_SET_STATE_ENABLE at parent\n"); + + wait(&status); + if (!WIFEXITED(status) || WEXITSTATUS(status)) + err(1, "arch_prctl test child exit"); + _exit(0); + } + + clear_xstate_header(xsave_buffer); + + /* By default, XTILECFG is permitted to use. */ + set_xstatebv(xsave_buffer, XFEATURE_MASK_XTILECFG); + set_tilecfg(xsave_buffer + xsave_xtilecfg_offset); + xrstor(xsave_buffer, -1, -1); + + set_xstatebv(xsave_buffer, XFEATURE_MASK_XTILEDATA); + set_rand_tiledata(xsave_buffer + xsave_xtiledata_offset); + + printf("\tLoad tile data without ARCH_SET_STATE_ENABLE at child.\n"); + /* + * Test XTILECFG state delivery via signal, when XTILEDATA is not + * permitted. + */ + check_tilecfg = true; + if (xrstor_safe(xsave_buffer, -1, -1)) { + nerrs++; + printf("[FAIL]\tSucceeded at child.\n"); + } else { + printf("[OK]\tBlocked at child.\n"); + } + + printf("\tDo ARCH_SET_STATE_ENABLE at child.\n"); + enable_tiledata(); + + printf("\tLoad tile data with ARCH_SET_STATE_ENABLE at child:\n"); + check_tilecfg = false; + if (xrstor_safe(xsave_buffer, -1, -1)) { + printf("[OK]\tSucceeded at child.\n"); + } else { + nerrs++; + printf("[FAIL]\tBlocked at child.\n"); + } + + printf("\tFork a grandchild.\n"); + grandchild = fork(); + if (grandchild < 0) { + err(1, "fork"); + } else if (!grandchild) { + char *args[] = {argv[0], TEST_EXECV_ARG, NULL}; + + if (xrstor_safe(xsave_buffer, -1, -1)) { + printf("[OK]\tSucceeded at grandchild.\n"); + } else { + nerrs++; + printf("[FAIL]\tBlocked at grandchild.\n"); + } + nerrs += execv(args[0], args); + } else { + int status; + + wait(&status); + if (!WIFEXITED(status) || WEXITSTATUS(status)) + err(1, "fork test grandchild"); + } + _exit(0); +} + +/* Testing tile data inheritance */ + +static void test_fork(void) +{ + pid_t child, grandchild; + + child = fork(); + if (child < 0) { + err(1, "fork"); + } else if (child > 0) { + int status; + + wait(&status); + if (!WIFEXITED(status) || WEXITSTATUS(status)) + err(1, "fork test child"); + return; + } + + printf("[RUN]\tCheck tile data inheritance.\n\tBefore fork(), load tile data -- yes:\n"); + + clear_xstate_header(xsave_buffer); + set_xstatebv(xsave_buffer, XFEATURE_MASK_XTILE); + set_tilecfg(xsave_buffer + xsave_xtilecfg_offset); + set_rand_tiledata(xsave_buffer + xsave_xtiledata_offset); + xrstor_safe(xsave_buffer, -1, -1); + + grandchild = fork(); + if (grandchild < 0) { + err(1, "fork"); + } else if (grandchild > 0) { + int status; + + wait(&status); + if (!WIFEXITED(status) || WEXITSTATUS(status)) + err(1, "fork test grand child"); + _exit(0); + } + + if (xgetbv(1) & XFEATURE_MASK_XTILE) { + nerrs++; + printf("[FAIL]\tIn a child, AMX state is not initialized.\n"); + } else { + printf("[OK]\tIn a child, AMX state is initialized.\n"); + } + _exit(0); +} + +/* Context switching test */ + +#define ITERATIONS 10 +#define NUM_THREADS 5 + +struct futex_info { + int current; + int *futex; + int next; +}; + +static inline void command_wait(struct futex_info *info, int value) +{ + do { + sched_yield(); + } while (syscall(SYS_futex, info->futex, FUTEX_WAIT, value, 0, 0, 0)); +} + +static inline void command_wake(struct futex_info *info, int value) +{ + do { + *info->futex = value; + while (!syscall(SYS_futex, info->futex, FUTEX_WAKE, 1, 0, 0, 0)) + sched_yield(); + } while (0); +} + +static inline int get_iterative_value(int id) +{ + return ((id << 1) & ~0x1); +} + +static inline int get_endpoint_value(int id) +{ + return ((id << 1) | 0x1); +} + +static void *check_tiledata(void *info) +{ + struct futex_info *finfo = (struct futex_info *)info; + void *xbuf, *tdata; + int i; + + xbuf = alloc_xsave_buffer(); + tdata = malloc(xtiledata_size); + if (!tdata) + err(1, "malloc()"); + + set_xstatebv(xbuf, XFEATURE_MASK_XTILEDATA); + set_rand_tiledata(xbuf + xsave_xtiledata_offset); + xrstor_safe(xbuf, -1, -1); + memcpy(tdata, xbuf + xsave_xtiledata_offset, xtiledata_size); + + for (i = 0; i < ITERATIONS; i++) { + command_wait(finfo, get_iterative_value(finfo->current)); + + xsave(xbuf, XFEATURE_MASK_XTILEDATA, 0); + if (memcmp(tdata, xbuf + xsave_xtiledata_offset, xtiledata_size)) + errs++; + + set_rand_tiledata(xbuf + xsave_xtiledata_offset); + xrstor_safe(xbuf, -1, -1); + memcpy(tdata, xbuf + xsave_xtiledata_offset, xtiledata_size); + + command_wake(finfo, get_iterative_value(finfo->next)); + } + + command_wait(finfo, get_endpoint_value(finfo->current)); + + free(xbuf); + free(tdata); + return NULL; +} + +static int create_threads(int num, struct futex_info *finfo) +{ + const int shm_id = shmget(IPC_PRIVATE, sizeof(int), IPC_CREAT | 0666); + int *futex = shmat(shm_id, NULL, 0); + pthread_t thread; + int i; + + for (i = 0; i < num; i++) { + finfo[i].futex = futex; + finfo[i].current = i + 1; + finfo[i].next = (i + 2) % (num + 1); + + if (pthread_create(&thread, NULL, check_tiledata, &finfo[i])) + err(1, "pthread_create()"); + } + return 0; +} + +static void test_context_switch(void) +{ + struct futex_info *finfo; + int i; + + printf("[RUN]\tCheck tile data context switches.\n"); + printf("\t# of context switches -- %u, # of threads -- %d:\n", + ITERATIONS * NUM_THREADS, NUM_THREADS); + + errs = 0; + + finfo = malloc(sizeof(*finfo) * NUM_THREADS); + if (!finfo) + err(1, "malloc()"); + + create_threads(NUM_THREADS, finfo); + + for (i = 0; i < ITERATIONS; i++) { + command_wake(finfo, get_iterative_value(1)); + command_wait(finfo, get_iterative_value(0)); + } + + for (i = 1; i <= NUM_THREADS; i++) + command_wake(finfo, get_endpoint_value(i)); + + if (errs) { + nerrs += errs; + printf("[FAIL]\tIncorrect cases were found -- (%d / %u).\n", + errs, ITERATIONS * NUM_THREADS); + } else { + printf("[OK]\tNo incorrect case was found.\n"); + } + + free(finfo); +} + +/* Ptrace test */ + +static bool ptracee_state_perm; + +static int inject_tiledata(pid_t target) +{ + struct iovec iov; + + iov.iov_base = xsave_buffer; + iov.iov_len = xsave_size; + + clear_xstate_header(xsave_buffer); + set_xstatebv(xsave_buffer, XFEATURE_MASK_XTILEDATA); + set_rand_tiledata(xsave_buffer + xsave_xtiledata_offset); + memcpy(tiledata, xsave_buffer + xsave_xtiledata_offset, xtiledata_size); + + if (ptrace(PTRACE_SETREGSET, target, (uint32_t)NT_X86_XSTATE, &iov)) { + if (errno != EFAULT) + err(1, "PTRACE_SETREGSET"); + else + return errno; + } + + if (ptrace(PTRACE_GETREGSET, target, (uint32_t)NT_X86_XSTATE, &iov)) + err(1, "PTRACE_GETREGSET"); + + if (!memcmp(tiledata, xsave_buffer + xsave_xtiledata_offset, xtiledata_size)) + return 0; + else + return -1; +} + +static void test_tile_write(void) +{ + int status, rc; + pid_t child; + bool pass; + + child = fork(); + if (child < 0) { + err(1, "fork"); + } else if (!child) { + if (ptracee_state_perm) + enable_tiledata(); + + if (ptrace(PTRACE_TRACEME, 0, NULL, NULL)) + err(1, "PTRACE_TRACEME"); + + raise(SIGTRAP); + _exit(0); + } + + do { + wait(&status); + } while (WSTOPSIG(status) != SIGTRAP); + + printf("\tInject tile data %s ARCH_SET_STATE_ENABLE\n", + ptracee_state_perm ? "with" : "without"); + + rc = inject_tiledata(child); + pass = (rc == EFAULT && !ptracee_state_perm) || + (!rc && ptracee_state_perm); + if (!pass) + nerrs++; + printf("[%s]\tTile data was %swritten on ptracee.\n", + pass ? "OK" : "FAIL", errs ? "not " : ""); + + ptrace(PTRACE_DETACH, child, NULL, NULL); + wait(&status); + if (!WIFEXITED(status) || WEXITSTATUS(status)) + err(1, "ptrace test"); +} + +static void test_ptrace(void) +{ + printf("[RUN]\tCheck ptrace() to inject tile data.\n"); + + ptracee_state_perm = false; + test_tile_write(); + + ptracee_state_perm = true; + test_tile_write(); +} + +/* Signal handling test */ + +static bool init_tiledata, load_tiledata; +static volatile bool signaled, sigstk_prefill; + +#define SIGFRAME_TILEDATA_SIGNATURE 0xEE + +static void handle_sigstk_prefill(int sig, siginfo_t *info, void *ctx_void) +{ + void *xbuf = ((ucontext_t *)ctx_void)->uc_mcontext.fpregs; + struct _fpx_sw_bytes *sw_bytes = get_fpx_sw_bytes(xsave); + + if (sw_bytes->xstate_size >= (xsave_xtiledata_offset + xtiledata_size)) { + memset(xbuf + xsave_xtiledata_offset, SIGFRAME_TILEDATA_SIGNATURE, + xtiledata_size); + } + + sigstk_prefill = true; +} + +static void handle_signal(int sig, siginfo_t *info, void *ctx_void) +{ + bool tiledata_area, tiledata_bit, tiledata_inuse; + void *xbuf = ((ucontext_t *)ctx_void)->uc_mcontext.fpregs; + struct _fpx_sw_bytes *sw_bytes = get_fpx_sw_bytes(xbuf); + char d = SIGFRAME_TILEDATA_SIGNATURE; + int i; + + printf("\tAt signal delivery,\n"); + + /* Check SW reserved data in the buffer: */ + if ((sw_bytes->xstate_size >= (xsave_xtiledata_offset + xtiledata_size)) && + (get_fpx_sw_bytes_xstatebv(xbuf) & XFEATURE_MASK_XTILEDATA)) { + printf("[OK]\tValid xstate size and mask in the SW data of xstate buffer\n"); + } else { + errs++; + printf("[FAIL]\tInvalid xstate size and/or mask in the SW data of xstate buffer\n"); + } + + /* Check XSAVE buffer header: */ + tiledata_inuse = (load_tiledata && !init_tiledata); + tiledata_bit = get_xstatebv(xbuf) & XFEATURE_MASK_XTILEDATA; + + if (tiledata_bit == tiledata_inuse) { + printf("[OK]\tTiledata bit is %sset in XSTATE_BV of xstate buffer.\n", + tiledata_bit ? "" : "not "); + } else { + errs++; + printf("[FAIL]\tTiledata bit is %sset in XSTATE_BV of xstate buffer.\n", + tiledata_bit ? "" : "not "); + } + + /* + * Check the sigframe data: + */ + + tiledata_inuse = (load_tiledata && !init_tiledata); + tiledata_area = false; + if (sw_bytes->xstate_size >= (xsave_xtiledata_offset + xtiledata_size)) { + for (i = 0; i < xtiledata_size; i++) { + if (memcmp(xbuf + xsave_xtiledata_offset + i, &d, 1)) { + tiledata_area = true; + break; + } + } + } + + if (tiledata_area == tiledata_inuse) { + printf("[OK]\tTiledata is %ssaved in signal buffer.\n", + tiledata_area ? "" : "not "); + } else { + errs++; + printf("[FAIL]\tTiledata is %ssaved in signal buffer.\n", + tiledata_area ? "" : "not "); + } + + /* Load random tiledata to test sigreturn: */ + clear_xstate_header(xsave_buffer); + set_xstatebv(xsave_buffer, XFEATURE_MASK_XTILEDATA); + set_rand_tiledata(xsave_buffer + xsave_xtiledata_offset); + xrstor_safe(xsave_buffer, -1, -1); + signaled = true; +} + +static void test_signal_handling(void) +{ + pid_t child; + + signaled = false; + sigstk_prefill = false; + + child = fork(); + if (child < 0) { + err(1, "fork"); + } else if (child > 0) { + do { + int status; + + wait(&status); + if (WIFSTOPPED(status)) + kill(child, SIGCONT); + else if (WIFEXITED(status) && !WEXITSTATUS(status)) + break; + else + err(1, "signal test child"); + } while (1); + return; + } + + printf("\tBefore signal, load tile data -- %s", load_tiledata ? "yes, " : "no:\n"); + if (load_tiledata) + printf("re-initialized -- %s:\n", init_tiledata ? "yes" : "no"); + + /* + * Raise SIGUSR1 to pre-fill sig stack. Also, load tiledata to size the pre-fill. + */ + + if (load_tiledata) { + clear_xstate_header(xsave_buffer); + set_xstatebv(xsave_buffer, XFEATURE_MASK_XTILEDATA); + xrstor_safe(xsave_buffer, -1, -1); + } + + raise(SIGUSR1); + if (!sigstk_prefill) + err(1, "SIGUSR1"); + + /* + * Raise SIGALRM to test AMX state handling in signal delivery. Set up the state and + * data before the test. + */ + + if (load_tiledata) { + clear_xstate_header(xsave_buffer); + set_xstatebv(xsave_buffer, XFEATURE_MASK_XTILEDATA); + set_rand_tiledata(xsave_buffer + xsave_xtiledata_offset); + xrstor_safe(xsave_buffer, -1, -1); + + if (init_tiledata) { + clear_xstate_header(xsave_buffer); + set_xstatebv(xsave_buffer, 0); + xrstor_safe(xsave_buffer, -1, -1); + memset(tiledata, 0, xtiledata_size); + } else { + memcpy(tiledata, xsave_buffer + xsave_xtiledata_offset, + xtiledata_size); + } + } else { + memset(tiledata, 0, xtiledata_size); + } + + raise(SIGALRM); + if (!signaled) + err(1, "SIGALRM"); + + printf("\tAt signal return,\n"); + xsave(xsave_buffer, XFEATURE_MASK_XTILEDATA, 0); + if (memcmp(tiledata, xsave_buffer + xsave_xtiledata_offset, xtiledata_size)) { + errs++; + printf("[FAIL]\tTiledata is not restored.\n"); + } else { + printf("[OK]\tTiledata is restored.\n"); + } + + if (errs) + nerrs++; + _exit(0); +} + +static void test_signal(void) +{ + printf("[RUN]\tCheck tile data state in signal path:\n"); + + sethandler(SIGALRM, handle_signal, 0); + sethandler(SIGUSR1, handle_sigstk_prefill, 0); + + load_tiledata = false; + init_tiledata = false; + errs = 0; + test_signal_handling(); + + load_tiledata = true; + init_tiledata = false; + errs = 0; + test_signal_handling(); + + load_tiledata = true; + init_tiledata = true; + errs = 0; + test_signal_handling(); + + clearhandler(SIGALRM); + clearhandler(SIGUSR1); +} + +int main(int argc, char **argv) +{ + cpu_set_t cpuset; + + if (argc == 2) { + int ret; + + if (strcmp(argv[1], TEST_EXECV_ARG)) + return 0; + + printf("\tRun after execv().\n"); + + xsave_buffer = alloc_xsave_buffer(); + clear_xstate_header(xsave_buffer); + + set_xstatebv(xsave_buffer, XFEATURE_MASK_XTILE); + set_rand_tiledata(xsave_buffer + xsave_xtiledata_offset); + + sethandler(SIGILL, handle_noperm, 0); + + if (xrstor_safe(xsave_buffer, -1, -1)) { + printf("[FAIL]\tSucceeded after execv().\n"); + ret = 1; + } else { + printf("[OK]\tBlocked after execv().\n"); + ret = 0; + } + + clearhandler(SIGILL); + free(xsave_buffer); + _exit(ret); + } + + /* Check hardware availability at first */ + + if (!check_xtile()) { + printf("%s is disabled.\n", noxsave ? "XSAVE" : "AMX"); + return 0; + } + + check_cpuid(); + + xsave_buffer = alloc_xsave_buffer(); + clear_xstate_header(xsave_buffer); + + tiledata = malloc(xtiledata_size); + if (!tiledata) + err(1, "malloc()"); + + tilecfg = malloc(xtilecfg_size); + if (!tilecfg) + err(1, "malloc()"); + set_tilecfg(tilecfg); + + nerrs = 0; + + sethandler(SIGILL, handle_noperm, 0); + + CPU_ZERO(&cpuset); + CPU_SET(0, &cpuset); + + if (sched_setaffinity(0, sizeof(cpuset), &cpuset) != 0) + err(1, "sched_setaffinity to CPU 0"); + + test_arch_prctl(argc, argv); + test_ptrace(); + + enable_tiledata(); + test_context_switch(); + test_fork(); + test_signal(); + + clearhandler(SIGILL); + + free(tilecfg); + free(tiledata); + free(xsave_buffer); + return nerrs ? 1 : 0; +} -- 2.17.1

4 years, 3 months

1
0
0 0

[PATCH v2 bpf-next 0/3] libbpf: BTF typed dump cleanups

by Alan Maguire

Fix issues with libbpf BTF typed dump code. Patch 1 addresses handling of unaligned data. Patch 2 fixes issues Andrii noticed when compiling on ppc64le. Patch 3 simplifies typed dump by getting rid of allocation of dump data structure which tracks dump state etc. Changes since v1: - Andrii suggested using a function instead of a macro for checking alignment of data, and pointed out that we need to consider dump ptr size versus native pointer size (patch 1) Alan Maguire (3): libbpf: clarify/fix unaligned data issues for btf typed dump libbpf: fix compilation errors on ppc64le for btf dump typed data libbpf: btf typed dump does not need to allocate dump data tools/lib/bpf/btf_dump.c | 39 ++++++++++++++++++++++++++++++--------- 1 file changed, 30 insertions(+), 9 deletions(-) -- 1.8.3.1

4 years, 3 months

2
8
0 0

[PATCH bpf-next] libbpf: clarify/fix unaligned data issues for btf typed dump

by Alan Maguire

If data is packed, data structures can store it outside of usual boundaries. For example a 4-byte int can be stored on a unaligned boundary in a case like this: struct s { char f1; int f2; } __attribute((packed)); ...the int is stored at an offset of one byte. Some platforms have problems dereferencing data that is not aligned with its size, and code exists to handle most cases of this for BTF typed data display. However pointer display was missed, and a simple macro to test if "data_is_unaligned(data, data_sz)" would help clarify this code. Suggested-by: Andrii Nakryiko <andrii(a)kernel.org> Signed-off-by: Alan Maguire <alan.maguire(a)oracle.com> --- tools/lib/bpf/btf_dump.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/tools/lib/bpf/btf_dump.c b/tools/lib/bpf/btf_dump.c index 929cf93..9dfe9c1 100644 --- a/tools/lib/bpf/btf_dump.c +++ b/tools/lib/bpf/btf_dump.c @@ -1654,6 +1654,8 @@ static int btf_dump_base_type_check_zero(struct btf_dump *d, return 0; } +#define data_is_unaligned(data, data_sz) (((uintptr_t)data) % data_sz) + static int btf_dump_int_data(struct btf_dump *d, const struct btf_type *t, __u32 type_id, @@ -1672,7 +1674,7 @@ static int btf_dump_int_data(struct btf_dump *d, /* handle packed int data - accesses of integers not aligned on * int boundaries can cause problems on some platforms. */ - if (((uintptr_t)data) % sz) + if (data_is_unaligned(data, sz)) return btf_dump_bitfield_data(d, t, data, 0, 0); switch (sz) { @@ -1739,7 +1741,7 @@ static int btf_dump_float_data(struct btf_dump *d, int sz = t->size; /* handle unaligned data; copy to local union */ - if (((uintptr_t)data) % sz) { + if (data_is_unaligned(data, sz)) { memcpy(&fl, data, sz); flp = &fl; } @@ -1897,7 +1899,10 @@ static int btf_dump_ptr_data(struct btf_dump *d, __u32 id, const void *data) { - btf_dump_type_values(d, "%p", *(void **)data); + void *ptrval; + + memcpy(&ptrval, data, d->ptr_sz); + btf_dump_type_values(d, "%p", ptrval); return 0; } @@ -1910,7 +1915,7 @@ static int btf_dump_get_enum_value(struct btf_dump *d, int sz = t->size; /* handle unaligned enum value */ - if (((uintptr_t)data) % sz) { + if (data_is_unaligned(data, sz)) { *value = (__s64)btf_dump_bitfield_get_data(d, t, data, 0, 0); return 0; } -- 1.8.3.1

4 years, 3 months

2
1
0 0

[PATCH v2 0/6] cgroup/cpuset: Add new cpuset partition type & empty effecitve cpus

by Waiman Long

v2: - Drop v1 patch 1. - Break out some cosmetic changes into a separate patch (patch #1). - Add a new patch to clarify the transition to invalid partition root is mainly caused by hotplug events. - Enhance the partition root state test including CPU online/offline behavior and fix issues found by the test. This patchset makes the following three major changes to the cpuset v2 code: Patch 2: Clarify the use of invalid partition root and add new checks to make sure that normal cpuset control file operations will not be allowed to create invalid partition root. It also fixes some of the issues in existing code. Patch 3: Add a new partition state "isolated" to create a partition root without load balancing. This is for handling intermitten workloads that have a strict low latency requirement. Patch 4: Allow partition roots that are not the top cpuset to distribute all its cpus to child partitions as long as there is no task associated with that partition root. This allows more flexibility for middleware to manage multiple partitions. Patch 5 updates the cgroup-v2.rst file accordingly. Patch 5 adds a new cpuset test to test the new cpuset partition code. Waiman Long (6): cgroup/cpuset: Miscellaneous code cleanup cgroup/cpuset: Clarify the use of invalid partition root cgroup/cpuset: Add a new isolated cpus.partition type cgroup/cpuset: Allow non-top parent partition root to distribute out all CPUs cgroup/cpuset: Update description of cpuset.cpus.partition in cgroup-v2.rst kselftest/cgroup: Add cpuset v2 partition root state test Documentation/admin-guide/cgroup-v2.rst | 65 +- kernel/cgroup/cpuset.c | 285 ++++++--- tools/testing/selftests/cgroup/Makefile | 2 +- .../selftests/cgroup/test_cpuset_prs.sh | 558 ++++++++++++++++++ 4 files changed, 794 insertions(+), 116 deletions(-) create mode 100755 tools/testing/selftests/cgroup/test_cpuset_prs.sh -- 2.18.1

4 years, 3 months

4
18
0 0

[PATCH v2] kunit: tool: add --kernel_args to allow setting module params

by Daniel Latypov

kunit.py currently does not make it possible for users to specify module parameters (/kernel arguments more generally) unless one directly tweaks the kunit.py code itself. This hasn't mattered much so far, but this would make it easier to port existing tests that expose module parameters over to KUnit and/or let current KUnit tests take advantage of them. Tested using an kunit internal parameter: $ ./tools/testing/kunit/kunit.py run --kunitconfig=lib/kunit \ --kernel_args=kunit.filter_glob=kunit_status ... Testing complete. 2 tests run. 0 failed. 0 crashed. 0 skipped. Signed-off-by: Daniel Latypov <dlatypov(a)google.com> --- v1 -> v2: s/kernel_arg/kernel_args in documentation --- Documentation/dev-tools/kunit/running_tips.rst | 10 ++++++++++ tools/testing/kunit/kunit.py | 16 ++++++++++++---- 2 files changed, 22 insertions(+), 4 deletions(-) diff --git a/Documentation/dev-tools/kunit/running_tips.rst b/Documentation/dev-tools/kunit/running_tips.rst index 7d99386cf94a..ebaaa2764207 100644 --- a/Documentation/dev-tools/kunit/running_tips.rst +++ b/Documentation/dev-tools/kunit/running_tips.rst @@ -80,6 +80,16 @@ file ``.kunitconfig``, you can just pass in the dir, e.g. automagically, but tests could theoretically depend on incompatible options, so handling that would be tricky. +Setting kernel commandline parameters +------------------------------------- + +You can use ``--kernel_args`` to pass arbitrary kernel arguments, e.g. + +.. code-block:: bash + + $ ./tools/testing/kunit/kunit.py run --kernel_args=param=42 --kernel_args=param2=false + + Generating code coverage reports under UML ------------------------------------------ diff --git a/tools/testing/kunit/kunit.py b/tools/testing/kunit/kunit.py index be8d8d4a4e08..03f3bc406955 100755 --- a/tools/testing/kunit/kunit.py +++ b/tools/testing/kunit/kunit.py @@ -28,12 +28,13 @@ KunitBuildRequest = namedtuple('KunitBuildRequest', ['jobs', 'build_dir', 'alltests', 'make_options']) KunitExecRequest = namedtuple('KunitExecRequest', - ['timeout', 'build_dir', 'alltests', 'filter_glob']) + ['timeout', 'build_dir', 'alltests', + 'filter_glob', 'kernel_args']) KunitParseRequest = namedtuple('KunitParseRequest', ['raw_output', 'input_data', 'build_dir', 'json']) KunitRequest = namedtuple('KunitRequest', ['raw_output','timeout', 'jobs', 'build_dir', 'alltests', 'filter_glob', - 'json', 'make_options']) + 'kernel_args', 'json', 'make_options']) KernelDirectoryPath = sys.argv[0].split('tools/testing/kunit/')[0] @@ -92,6 +93,7 @@ def exec_tests(linux: kunit_kernel.LinuxSourceTree, kunit_parser.print_with_timestamp('Starting KUnit Kernel ...') test_start = time.time() result = linux.run_kernel( + args=request.kernel_args, timeout=None if request.alltests else request.timeout, filter_glob=request.filter_glob, build_dir=request.build_dir) @@ -150,7 +152,8 @@ def run_tests(linux: kunit_kernel.LinuxSourceTree, return build_result exec_request = KunitExecRequest(request.timeout, request.build_dir, - request.alltests, request.filter_glob) + request.alltests, request.filter_glob, + request.kernel_args) exec_result = exec_tests(linux, exec_request) if exec_result.status != KunitStatus.SUCCESS: return exec_result @@ -236,6 +239,9 @@ def add_exec_opts(parser) -> None: nargs='?', default='', metavar='filter_glob') + parser.add_argument('--kernel_args', + help='Kernel command-line parameters. Maybe be repeated', + action='append') def add_parse_opts(parser) -> None: parser.add_argument('--raw_output', help='don\'t format output from kernel', @@ -307,6 +313,7 @@ def main(argv, linux=None): cli_args.build_dir, cli_args.alltests, cli_args.filter_glob, + cli_args.kernel_args, cli_args.json, cli_args.make_options) result = run_tests(linux, request) @@ -361,7 +368,8 @@ def main(argv, linux=None): exec_request = KunitExecRequest(cli_args.timeout, cli_args.build_dir, cli_args.alltests, - cli_args.filter_glob) + cli_args.filter_glob, + cli_args.kernel_args) exec_result = exec_tests(linux, exec_request) parse_request = KunitParseRequest(cli_args.raw_output, exec_result.result, base-commit: 8096acd7442e613fad0354fc8dfdb2003cceea0b -- 2.32.0.93.g670b81a890-goog

4 years, 3 months

2
2
0 0

[PATCH 5.12] selftests/resctrl: Fix incorrect parsing of option "-t"

by Xiaochen Shen

commit 1421ec684a43379b2aa3cfda20b03d38282dc990 upstream. Resctrl test suite accepts command line argument "-t" to specify the unit tests to run in the test list (e.g., -t mbm,mba,cmt,cat) as documented in the help. When calling strtok() to parse the option, the incorrect delimiters argument ":\t" is used. As a result, passing "-t mbm,mba,cmt,cat" throws an invalid option error. Fix this by using delimiters argument "," instead of ":\t" for parsing of unit tests list. At the same time, remove the unnecessary "spaces" between the unit tests in help documentation to prevent confusion. Fixes: 790bf585b0ee ("selftests/resctrl: Add Cache Allocation Technology (CAT) selftest") Fixes: 78941183d1b1 ("selftests/resctrl: Add Cache QoS Monitoring (CQM) selftest") Fixes: ecdbb911f22d ("selftests/resctrl: Add MBM test") Fixes: 034c7678dd2c ("selftests/resctrl: Add README for resctrl tests") Cc: stable(a)vger.kernel.org Signed-off-by: Xiaochen Shen <xiaochen.shen(a)intel.com> Reviewed-by: Tony Luck <tony.luck(a)intel.com> Signed-off-by: Shuah Khan <skhan(a)linuxfoundation.org> --- tools/testing/selftests/resctrl/README | 2 +- tools/testing/selftests/resctrl/resctrl_tests.c | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/tools/testing/selftests/resctrl/README b/tools/testing/selftests/resctrl/README index 6e5a0ff..20502cb 100644 --- a/tools/testing/selftests/resctrl/README +++ b/tools/testing/selftests/resctrl/README @@ -47,7 +47,7 @@ Parameter '-h' shows usage information. usage: resctrl_tests [-h] [-b "benchmark_cmd [options]"] [-t test list] [-n no_of_bits] -b benchmark_cmd [options]: run specified benchmark for MBM, MBA and CQM default benchmark is builtin fill_buf - -t test list: run tests specified in the test list, e.g. -t mbm, mba, cqm, cat + -t test list: run tests specified in the test list, e.g. -t mbm,mba,cqm,cat -n no_of_bits: run cache tests using specified no of bits in cache bit mask -p cpu_no: specify CPU number to run the test. 1 is default -h: help diff --git a/tools/testing/selftests/resctrl/resctrl_tests.c b/tools/testing/selftests/resctrl/resctrl_tests.c index ac22696..bd98746 100644 --- a/tools/testing/selftests/resctrl/resctrl_tests.c +++ b/tools/testing/selftests/resctrl/resctrl_tests.c @@ -40,7 +40,7 @@ static void cmd_help(void) printf("\t-b benchmark_cmd [options]: run specified benchmark for MBM, MBA and CQM"); printf("\t default benchmark is builtin fill_buf\n"); printf("\t-t test list: run tests specified in the test list, "); - printf("e.g. -t mbm, mba, cqm, cat\n"); + printf("e.g. -t mbm,mba,cqm,cat\n"); printf("\t-n no_of_bits: run cache tests using specified no of bits in cache bit mask\n"); printf("\t-p cpu_no: specify CPU number to run the test. 1 is default\n"); printf("\t-h: help\n"); @@ -98,7 +98,7 @@ int main(int argc, char **argv) return -1; } - token = strtok(NULL, ":\t"); + token = strtok(NULL, ","); } break; case 'p': -- 1.8.3.1

4 years, 3 months

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[PATCH v5 2/2] tests: add move_mount(MOVE_MOUNT_SET_GROUP) selftest

by Pavel Tikhomirov

Add a simple selftest for a move_mount(MOVE_MOUNT_SET_GROUP). This tests that one can copy sharing from one mount from nested mntns with nested userns owner to another mount from other nested mntns with other nested userns owner while in their parent userns. TAP version 13 1..1 # Starting 1 tests from 2 test cases. # RUN move_mount_set_group.complex_sharing_copying ... # OK move_mount_set_group.complex_sharing_copying ok 1 move_mount_set_group.complex_sharing_copying # PASSED: 1 / 1 tests passed. # Totals: pass:1 fail:0 xfail:0 xpass:0 skip:0 error:0 Cc: Shuah Khan <shuah(a)kernel.org> Cc: Eric W. Biederman <ebiederm(a)xmission.com> Cc: Alexander Viro <viro(a)zeniv.linux.org.uk> Cc: Christian Brauner <christian.brauner(a)ubuntu.com> Cc: Mattias Nissler <mnissler(a)chromium.org> Cc: Aleksa Sarai <cyphar(a)cyphar.com> Cc: Andrei Vagin <avagin(a)gmail.com> Cc: linux-fsdevel(a)vger.kernel.org Cc: linux-kselftest(a)vger.kernel.org Cc: lkml <linux-kernel(a)vger.kernel.org> Signed-off-by: Pavel Tikhomirov <ptikhomirov(a)virtuozzo.com> --- Note: One can also test it via criu mount-v2 POC: https://github.com/Snorch/criu/commits/mount-v2-poc v3: add some test v5: fix test codding style + fix cc --- tools/testing/selftests/Makefile | 1 + .../selftests/move_mount_set_group/.gitignore | 1 + .../selftests/move_mount_set_group/Makefile | 7 + .../selftests/move_mount_set_group/config | 1 + .../move_mount_set_group_test.c | 375 ++++++++++++++++++ 5 files changed, 385 insertions(+) create mode 100644 tools/testing/selftests/move_mount_set_group/.gitignore create mode 100644 tools/testing/selftests/move_mount_set_group/Makefile create mode 100644 tools/testing/selftests/move_mount_set_group/config create mode 100644 tools/testing/selftests/move_mount_set_group/move_mount_set_group_test.c diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile index fb010a35d61a..dd0388eab94d 100644 --- a/tools/testing/selftests/Makefile +++ b/tools/testing/selftests/Makefile @@ -35,6 +35,7 @@ TARGETS += memory-hotplug TARGETS += mincore TARGETS += mount TARGETS += mount_setattr +TARGETS += move_mount_set_group TARGETS += mqueue TARGETS += nci TARGETS += net diff --git a/tools/testing/selftests/move_mount_set_group/.gitignore b/tools/testing/selftests/move_mount_set_group/.gitignore new file mode 100644 index 000000000000..f5e339268720 --- /dev/null +++ b/tools/testing/selftests/move_mount_set_group/.gitignore @@ -0,0 +1 @@ +move_mount_set_group_test diff --git a/tools/testing/selftests/move_mount_set_group/Makefile b/tools/testing/selftests/move_mount_set_group/Makefile new file mode 100644 index 000000000000..80c2d86812b0 --- /dev/null +++ b/tools/testing/selftests/move_mount_set_group/Makefile @@ -0,0 +1,7 @@ +# SPDX-License-Identifier: GPL-2.0 +# Makefile for mount selftests. +CFLAGS = -g -I../../../../usr/include/ -Wall -O2 + +TEST_GEN_FILES += move_mount_set_group_test + +include ../lib.mk diff --git a/tools/testing/selftests/move_mount_set_group/config b/tools/testing/selftests/move_mount_set_group/config new file mode 100644 index 000000000000..416bd53ce982 --- /dev/null +++ b/tools/testing/selftests/move_mount_set_group/config @@ -0,0 +1 @@ +CONFIG_USER_NS=y diff --git a/tools/testing/selftests/move_mount_set_group/move_mount_set_group_test.c b/tools/testing/selftests/move_mount_set_group/move_mount_set_group_test.c new file mode 100644 index 000000000000..860198f83a53 --- /dev/null +++ b/tools/testing/selftests/move_mount_set_group/move_mount_set_group_test.c @@ -0,0 +1,375 @@ +// SPDX-License-Identifier: GPL-2.0 +#define _GNU_SOURCE +#include <sched.h> +#include <stdio.h> +#include <errno.h> +#include <string.h> +#include <sys/stat.h> +#include <sys/types.h> +#include <sys/mount.h> +#include <sys/wait.h> +#include <stdlib.h> +#include <unistd.h> +#include <fcntl.h> +#include <stdbool.h> +#include <stdarg.h> +#include <sys/syscall.h> + +#include "../kselftest_harness.h" + +#ifndef CLONE_NEWNS +#define CLONE_NEWNS 0x00020000 +#endif + +#ifndef CLONE_NEWUSER +#define CLONE_NEWUSER 0x10000000 +#endif + +#ifndef MS_SHARED +#define MS_SHARED (1 << 20) +#endif + +#ifndef MS_PRIVATE +#define MS_PRIVATE (1<<18) +#endif + +#ifndef MOVE_MOUNT_SET_GROUP +#define MOVE_MOUNT_SET_GROUP 0x00000100 +#endif + +#ifndef MOVE_MOUNT_F_EMPTY_PATH +#define MOVE_MOUNT_F_EMPTY_PATH 0x00000004 +#endif + +#ifndef MOVE_MOUNT_T_EMPTY_PATH +#define MOVE_MOUNT_T_EMPTY_PATH 0x00000040 +#endif + +static ssize_t write_nointr(int fd, const void *buf, size_t count) +{ + ssize_t ret; + + do { + ret = write(fd, buf, count); + } while (ret < 0 && errno == EINTR); + + return ret; +} + +static int write_file(const char *path, const void *buf, size_t count) +{ + int fd; + ssize_t ret; + + fd = open(path, O_WRONLY | O_CLOEXEC | O_NOCTTY | O_NOFOLLOW); + if (fd < 0) + return -1; + + ret = write_nointr(fd, buf, count); + close(fd); + if (ret < 0 || (size_t)ret != count) + return -1; + + return 0; +} + +static int create_and_enter_userns(void) +{ + uid_t uid; + gid_t gid; + char map[100]; + + uid = getuid(); + gid = getgid(); + + if (unshare(CLONE_NEWUSER)) + return -1; + + if (write_file("/proc/self/setgroups", "deny", sizeof("deny") - 1) && + errno != ENOENT) + return -1; + + snprintf(map, sizeof(map), "0 %d 1", uid); + if (write_file("/proc/self/uid_map", map, strlen(map))) + return -1; + + + snprintf(map, sizeof(map), "0 %d 1", gid); + if (write_file("/proc/self/gid_map", map, strlen(map))) + return -1; + + if (setgid(0)) + return -1; + + if (setuid(0)) + return -1; + + return 0; +} + +static int prepare_unpriv_mountns(void) +{ + if (create_and_enter_userns()) + return -1; + + if (unshare(CLONE_NEWNS)) + return -1; + + if (mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, 0)) + return -1; + + return 0; +} + +static char *get_field(char *src, int nfields) +{ + int i; + char *p = src; + + for (i = 0; i < nfields; i++) { + while (*p && *p != ' ' && *p != '\t') + p++; + + if (!*p) + break; + + p++; + } + + return p; +} + +static void null_endofword(char *word) +{ + while (*word && *word != ' ' && *word != '\t') + word++; + *word = '\0'; +} + +static bool is_shared_mount(const char *path) +{ + size_t len = 0; + char *line = NULL; + FILE *f = NULL; + + f = fopen("/proc/self/mountinfo", "re"); + if (!f) + return false; + + while (getline(&line, &len, f) != -1) { + char *opts, *target; + + target = get_field(line, 4); + if (!target) + continue; + + opts = get_field(target, 2); + if (!opts) + continue; + + null_endofword(target); + + if (strcmp(target, path) != 0) + continue; + + null_endofword(opts); + if (strstr(opts, "shared:")) + return true; + } + + free(line); + fclose(f); + + return false; +} + +/* Attempt to de-conflict with the selftests tree. */ +#ifndef SKIP +#define SKIP(s, ...) XFAIL(s, ##__VA_ARGS__) +#endif + +#define SET_GROUP_FROM "/tmp/move_mount_set_group_supported_from" +#define SET_GROUP_TO "/tmp/move_mount_set_group_supported_to" + +static int move_mount_set_group_supported(void) +{ + int ret; + + if (mount("testing", "/tmp", "tmpfs", MS_NOATIME | MS_NODEV, + "size=100000,mode=700")) + return -1; + + if (mount(NULL, "/tmp", NULL, MS_PRIVATE, 0)) + return -1; + + if (mkdir(SET_GROUP_FROM, 0777)) + return -1; + + if (mkdir(SET_GROUP_TO, 0777)) + return -1; + + if (mount("testing", SET_GROUP_FROM, "tmpfs", MS_NOATIME | MS_NODEV, + "size=100000,mode=700")) + return -1; + + if (mount(SET_GROUP_FROM, SET_GROUP_TO, NULL, MS_BIND, NULL)) + return -1; + + if (mount(NULL, SET_GROUP_FROM, NULL, MS_SHARED, 0)) + return -1; + + ret = syscall(SYS_move_mount, AT_FDCWD, SET_GROUP_FROM, + AT_FDCWD, SET_GROUP_TO, MOVE_MOUNT_SET_GROUP); + umount2("/tmp", MNT_DETACH); + + return ret < 0 ? false : true; +} + +FIXTURE(move_mount_set_group) { +}; + +#define SET_GROUP_A "/tmp/A" + +FIXTURE_SETUP(move_mount_set_group) +{ + int ret; + + ASSERT_EQ(prepare_unpriv_mountns(), 0); + + ret = move_mount_set_group_supported(); + ASSERT_GE(ret, 0); + if (!ret) + SKIP(return, "move_mount(MOVE_MOUNT_SET_GROUP) is not supported"); + + umount2("/tmp", MNT_DETACH); + + ASSERT_EQ(mount("testing", "/tmp", "tmpfs", MS_NOATIME | MS_NODEV, + "size=100000,mode=700"), 0); + + ASSERT_EQ(mkdir(SET_GROUP_A, 0777), 0); + + ASSERT_EQ(mount("testing", SET_GROUP_A, "tmpfs", MS_NOATIME | MS_NODEV, + "size=100000,mode=700"), 0); +} + +FIXTURE_TEARDOWN(move_mount_set_group) +{ + int ret; + + ret = move_mount_set_group_supported(); + ASSERT_GE(ret, 0); + if (!ret) + SKIP(return, "move_mount(MOVE_MOUNT_SET_GROUP) is not supported"); + + umount2("/tmp", MNT_DETACH); +} + +#define __STACK_SIZE (8 * 1024 * 1024) +static pid_t do_clone(int (*fn)(void *), void *arg, int flags) +{ + void *stack; + + stack = malloc(__STACK_SIZE); + if (!stack) + return -ENOMEM; + +#ifdef __ia64__ + return __clone2(fn, stack, __STACK_SIZE, flags | SIGCHLD, arg, NULL); +#else + return clone(fn, stack + __STACK_SIZE, flags | SIGCHLD, arg, NULL); +#endif +} + +static int wait_for_pid(pid_t pid) +{ + int status, ret; + +again: + ret = waitpid(pid, &status, 0); + if (ret == -1) { + if (errno == EINTR) + goto again; + + return -1; + } + + if (!WIFEXITED(status)) + return -1; + + return WEXITSTATUS(status); +} + +struct child_args { + int unsfd; + int mntnsfd; + bool shared; + int mntfd; +}; + +static int get_nestedns_mount_cb(void *data) +{ + struct child_args *ca = (struct child_args *)data; + int ret; + + ret = prepare_unpriv_mountns(); + if (ret) + return 1; + + if (ca->shared) { + ret = mount(NULL, SET_GROUP_A, NULL, MS_SHARED, 0); + if (ret) + return 1; + } + + ret = open("/proc/self/ns/user", O_RDONLY); + if (ret < 0) + return 1; + ca->unsfd = ret; + + ret = open("/proc/self/ns/mnt", O_RDONLY); + if (ret < 0) + return 1; + ca->mntnsfd = ret; + + ret = open(SET_GROUP_A, O_RDONLY); + if (ret < 0) + return 1; + ca->mntfd = ret; + + return 0; +} + +TEST_F(move_mount_set_group, complex_sharing_copying) +{ + struct child_args ca_from = { + .shared = true, + }; + struct child_args ca_to = { + .shared = false, + }; + pid_t pid; + int ret; + + ret = move_mount_set_group_supported(); + ASSERT_GE(ret, 0); + if (!ret) + SKIP(return, "move_mount(MOVE_MOUNT_SET_GROUP) is not supported"); + + pid = do_clone(get_nestedns_mount_cb, (void *)&ca_from, CLONE_VFORK | + CLONE_VM | CLONE_FILES); ASSERT_GT(pid, 0); + ASSERT_EQ(wait_for_pid(pid), 0); + + pid = do_clone(get_nestedns_mount_cb, (void *)&ca_to, CLONE_VFORK | + CLONE_VM | CLONE_FILES); ASSERT_GT(pid, 0); + ASSERT_EQ(wait_for_pid(pid), 0); + + ASSERT_EQ(syscall(SYS_move_mount, ca_from.mntfd, "", + ca_to.mntfd, "", MOVE_MOUNT_SET_GROUP + | MOVE_MOUNT_F_EMPTY_PATH | MOVE_MOUNT_T_EMPTY_PATH), + 0); + + ASSERT_EQ(setns(ca_to.mntnsfd, CLONE_NEWNS), 0); + ASSERT_EQ(is_shared_mount(SET_GROUP_A), 1); +} + +TEST_HARNESS_MAIN -- 2.31.1

4 years, 3 months

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[PATCH] kunit: tool: add --kernel_args to allow setting module params

by Daniel Latypov

kunit.py currently does not make it possible for users to specify module parameters (/kernel arguments more generally) unless one directly tweaks the kunit.py code itself. This hasn't mattered much so far, but this would make it easier to port existing tests that expose module parameters over to KUnit and/or let current KUnit tests take advantage of them. Tested using an kunit internal parameter: $ ./tools/testing/kunit/kunit.py run --kunitconfig=lib/kunit \ --kernel_args=kunit.filter_glob=kunit_status ... Testing complete. 2 tests run. 0 failed. 0 crashed. 0 skipped. Signed-off-by: Daniel Latypov <dlatypov(a)google.com> --- Documentation/dev-tools/kunit/running_tips.rst | 10 ++++++++++ tools/testing/kunit/kunit.py | 16 ++++++++++++---- 2 files changed, 22 insertions(+), 4 deletions(-) diff --git a/Documentation/dev-tools/kunit/running_tips.rst b/Documentation/dev-tools/kunit/running_tips.rst index 7d99386cf94a..bc37a2ad1598 100644 --- a/Documentation/dev-tools/kunit/running_tips.rst +++ b/Documentation/dev-tools/kunit/running_tips.rst @@ -80,6 +80,16 @@ file ``.kunitconfig``, you can just pass in the dir, e.g. automagically, but tests could theoretically depend on incompatible options, so handling that would be tricky. +Setting kernel commandline parameters +------------------------------------- + +You can use ``--kernel_arg`` to pass arbitrary kernel arguments, e.g. + +.. code-block:: bash + + $ ./tools/testing/kunit/kunit.py run --kernel_arg=param=42 --kernel_arg=param2=false + + Generating code coverage reports under UML ------------------------------------------ diff --git a/tools/testing/kunit/kunit.py b/tools/testing/kunit/kunit.py index be8d8d4a4e08..03f3bc406955 100755 --- a/tools/testing/kunit/kunit.py +++ b/tools/testing/kunit/kunit.py @@ -28,12 +28,13 @@ KunitBuildRequest = namedtuple('KunitBuildRequest', ['jobs', 'build_dir', 'alltests', 'make_options']) KunitExecRequest = namedtuple('KunitExecRequest', - ['timeout', 'build_dir', 'alltests', 'filter_glob']) + ['timeout', 'build_dir', 'alltests', + 'filter_glob', 'kernel_args']) KunitParseRequest = namedtuple('KunitParseRequest', ['raw_output', 'input_data', 'build_dir', 'json']) KunitRequest = namedtuple('KunitRequest', ['raw_output','timeout', 'jobs', 'build_dir', 'alltests', 'filter_glob', - 'json', 'make_options']) + 'kernel_args', 'json', 'make_options']) KernelDirectoryPath = sys.argv[0].split('tools/testing/kunit/')[0] @@ -92,6 +93,7 @@ def exec_tests(linux: kunit_kernel.LinuxSourceTree, kunit_parser.print_with_timestamp('Starting KUnit Kernel ...') test_start = time.time() result = linux.run_kernel( + args=request.kernel_args, timeout=None if request.alltests else request.timeout, filter_glob=request.filter_glob, build_dir=request.build_dir) @@ -150,7 +152,8 @@ def run_tests(linux: kunit_kernel.LinuxSourceTree, return build_result exec_request = KunitExecRequest(request.timeout, request.build_dir, - request.alltests, request.filter_glob) + request.alltests, request.filter_glob, + request.kernel_args) exec_result = exec_tests(linux, exec_request) if exec_result.status != KunitStatus.SUCCESS: return exec_result @@ -236,6 +239,9 @@ def add_exec_opts(parser) -> None: nargs='?', default='', metavar='filter_glob') + parser.add_argument('--kernel_args', + help='Kernel command-line parameters. Maybe be repeated', + action='append') def add_parse_opts(parser) -> None: parser.add_argument('--raw_output', help='don\'t format output from kernel', @@ -307,6 +313,7 @@ def main(argv, linux=None): cli_args.build_dir, cli_args.alltests, cli_args.filter_glob, + cli_args.kernel_args, cli_args.json, cli_args.make_options) result = run_tests(linux, request) @@ -361,7 +368,8 @@ def main(argv, linux=None): exec_request = KunitExecRequest(cli_args.timeout, cli_args.build_dir, cli_args.alltests, - cli_args.filter_glob) + cli_args.filter_glob, + cli_args.kernel_args) exec_result = exec_tests(linux, exec_request) parse_request = KunitParseRequest(cli_args.raw_output, exec_result.result, base-commit: 8096acd7442e613fad0354fc8dfdb2003cceea0b -- 2.32.0.93.g670b81a890-goog

4 years, 3 months

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[PATCH v2 1/1] tools: Rename bitmap_alloc() to bitmap_zalloc()

by Andy Shevchenko

Rename bitmap_alloc() to bitmap_zalloc() in tools to follow the bitmap API in the kernel. No functional changes intended. Suggested-by: Yury Norov <yury.norov(a)gmail.com> Acked-by: Yury Norov <yury.norov(a)gmail.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> --- v2: fixed commit message, Yury's email, added Ack (Yury) tools/include/linux/bitmap.h | 4 ++-- tools/perf/bench/find-bit-bench.c | 2 +- tools/perf/builtin-c2c.c | 6 +++--- tools/perf/builtin-record.c | 2 +- tools/perf/tests/bitmap.c | 2 +- tools/perf/tests/mem2node.c | 2 +- tools/perf/util/affinity.c | 4 ++-- tools/perf/util/header.c | 4 ++-- tools/perf/util/metricgroup.c | 2 +- tools/perf/util/mmap.c | 4 ++-- tools/testing/selftests/kvm/dirty_log_perf_test.c | 2 +- tools/testing/selftests/kvm/dirty_log_test.c | 4 ++-- tools/testing/selftests/kvm/x86_64/vmx_dirty_log_test.c | 2 +- 13 files changed, 20 insertions(+), 20 deletions(-) diff --git a/tools/include/linux/bitmap.h b/tools/include/linux/bitmap.h index 9d959bc24859..95611df1d26e 100644 --- a/tools/include/linux/bitmap.h +++ b/tools/include/linux/bitmap.h @@ -111,10 +111,10 @@ static inline int test_and_clear_bit(int nr, unsigned long *addr) } /** - * bitmap_alloc - Allocate bitmap + * bitmap_zalloc - Allocate bitmap * @nbits: Number of bits */ -static inline unsigned long *bitmap_alloc(int nbits) +static inline unsigned long *bitmap_zalloc(int nbits) { return calloc(1, BITS_TO_LONGS(nbits) * sizeof(unsigned long)); } diff --git a/tools/perf/bench/find-bit-bench.c b/tools/perf/bench/find-bit-bench.c index 73b5bcc5946a..22b5cfe97023 100644 --- a/tools/perf/bench/find-bit-bench.c +++ b/tools/perf/bench/find-bit-bench.c @@ -54,7 +54,7 @@ static bool asm_test_bit(long nr, const unsigned long *addr) static int do_for_each_set_bit(unsigned int num_bits) { - unsigned long *to_test = bitmap_alloc(num_bits); + unsigned long *to_test = bitmap_zalloc(num_bits); struct timeval start, end, diff; u64 runtime_us; struct stats fb_time_stats, tb_time_stats; diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c index 6dea37f141b2..c34d77bee4ef 100644 --- a/tools/perf/builtin-c2c.c +++ b/tools/perf/builtin-c2c.c @@ -139,11 +139,11 @@ static void *c2c_he_zalloc(size_t size) if (!c2c_he) return NULL; - c2c_he->cpuset = bitmap_alloc(c2c.cpus_cnt); + c2c_he->cpuset = bitmap_zalloc(c2c.cpus_cnt); if (!c2c_he->cpuset) return NULL; - c2c_he->nodeset = bitmap_alloc(c2c.nodes_cnt); + c2c_he->nodeset = bitmap_zalloc(c2c.nodes_cnt); if (!c2c_he->nodeset) return NULL; @@ -2047,7 +2047,7 @@ static int setup_nodes(struct perf_session *session) struct perf_cpu_map *map = n[node].map; unsigned long *set; - set = bitmap_alloc(c2c.cpus_cnt); + set = bitmap_zalloc(c2c.cpus_cnt); if (!set) return -ENOMEM; diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index 671a21c9ee4d..f1b30ac094cb 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -2786,7 +2786,7 @@ int cmd_record(int argc, const char **argv) if (rec->opts.affinity != PERF_AFFINITY_SYS) { rec->affinity_mask.nbits = cpu__max_cpu(); - rec->affinity_mask.bits = bitmap_alloc(rec->affinity_mask.nbits); + rec->affinity_mask.bits = bitmap_zalloc(rec->affinity_mask.nbits); if (!rec->affinity_mask.bits) { pr_err("Failed to allocate thread mask for %zd cpus\n", rec->affinity_mask.nbits); err = -ENOMEM; diff --git a/tools/perf/tests/bitmap.c b/tools/perf/tests/bitmap.c index 96c137360918..12b805efdca0 100644 --- a/tools/perf/tests/bitmap.c +++ b/tools/perf/tests/bitmap.c @@ -14,7 +14,7 @@ static unsigned long *get_bitmap(const char *str, int nbits) unsigned long *bm = NULL; int i; - bm = bitmap_alloc(nbits); + bm = bitmap_zalloc(nbits); if (map && bm) { for (i = 0; i < map->nr; i++) diff --git a/tools/perf/tests/mem2node.c b/tools/perf/tests/mem2node.c index a258bd51f1a4..e4d0d58b97f8 100644 --- a/tools/perf/tests/mem2node.c +++ b/tools/perf/tests/mem2node.c @@ -27,7 +27,7 @@ static unsigned long *get_bitmap(const char *str, int nbits) unsigned long *bm = NULL; int i; - bm = bitmap_alloc(nbits); + bm = bitmap_zalloc(nbits); if (map && bm) { for (i = 0; i < map->nr; i++) { diff --git a/tools/perf/util/affinity.c b/tools/perf/util/affinity.c index a5e31f826828..7b12bd7a3080 100644 --- a/tools/perf/util/affinity.c +++ b/tools/perf/util/affinity.c @@ -25,11 +25,11 @@ int affinity__setup(struct affinity *a) { int cpu_set_size = get_cpu_set_size(); - a->orig_cpus = bitmap_alloc(cpu_set_size * 8); + a->orig_cpus = bitmap_zalloc(cpu_set_size * 8); if (!a->orig_cpus) return -1; sched_getaffinity(0, cpu_set_size, (cpu_set_t *)a->orig_cpus); - a->sched_cpus = bitmap_alloc(cpu_set_size * 8); + a->sched_cpus = bitmap_zalloc(cpu_set_size * 8); if (!a->sched_cpus) { zfree(&a->orig_cpus); return -1; diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c index 44249027507a..563dec72adeb 100644 --- a/tools/perf/util/header.c +++ b/tools/perf/util/header.c @@ -278,7 +278,7 @@ static int do_read_bitmap(struct feat_fd *ff, unsigned long **pset, u64 *psize) if (ret) return ret; - set = bitmap_alloc(size); + set = bitmap_zalloc(size); if (!set) return -ENOMEM; @@ -1294,7 +1294,7 @@ static int memory_node__read(struct memory_node *n, unsigned long idx) size++; - n->set = bitmap_alloc(size); + n->set = bitmap_zalloc(size); if (!n->set) { closedir(dir); return -ENOMEM; diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c index 99d047c5ead0..29b747ac31c1 100644 --- a/tools/perf/util/metricgroup.c +++ b/tools/perf/util/metricgroup.c @@ -313,7 +313,7 @@ static int metricgroup__setup_events(struct list_head *groups, struct evsel *evsel, *tmp; unsigned long *evlist_used; - evlist_used = bitmap_alloc(perf_evlist->core.nr_entries); + evlist_used = bitmap_zalloc(perf_evlist->core.nr_entries); if (!evlist_used) return -ENOMEM; diff --git a/tools/perf/util/mmap.c b/tools/perf/util/mmap.c index ab7108d22428..512dc8b9c168 100644 --- a/tools/perf/util/mmap.c +++ b/tools/perf/util/mmap.c @@ -106,7 +106,7 @@ static int perf_mmap__aio_bind(struct mmap *map, int idx, int cpu, int affinity) data = map->aio.data[idx]; mmap_len = mmap__mmap_len(map); node_index = cpu__get_node(cpu); - node_mask = bitmap_alloc(node_index + 1); + node_mask = bitmap_zalloc(node_index + 1); if (!node_mask) { pr_err("Failed to allocate node mask for mbind: error %m\n"); return -1; @@ -258,7 +258,7 @@ static void build_node_mask(int node, struct mmap_cpu_mask *mask) static int perf_mmap__setup_affinity_mask(struct mmap *map, struct mmap_params *mp) { map->affinity_mask.nbits = cpu__max_cpu(); - map->affinity_mask.bits = bitmap_alloc(map->affinity_mask.nbits); + map->affinity_mask.bits = bitmap_zalloc(map->affinity_mask.nbits); if (!map->affinity_mask.bits) return -1; diff --git a/tools/testing/selftests/kvm/dirty_log_perf_test.c b/tools/testing/selftests/kvm/dirty_log_perf_test.c index 04a2641261be..fbf0c2c1fbc9 100644 --- a/tools/testing/selftests/kvm/dirty_log_perf_test.c +++ b/tools/testing/selftests/kvm/dirty_log_perf_test.c @@ -121,7 +121,7 @@ static void run_test(enum vm_guest_mode mode, void *arg) guest_num_pages = (nr_vcpus * guest_percpu_mem_size) >> vm_get_page_shift(vm); guest_num_pages = vm_adjust_num_guest_pages(mode, guest_num_pages); host_num_pages = vm_num_host_pages(mode, guest_num_pages); - bmap = bitmap_alloc(host_num_pages); + bmap = bitmap_zalloc(host_num_pages); if (dirty_log_manual_caps) { cap.cap = KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2; diff --git a/tools/testing/selftests/kvm/dirty_log_test.c b/tools/testing/selftests/kvm/dirty_log_test.c index 5fe0140e407e..792c60e1b17d 100644 --- a/tools/testing/selftests/kvm/dirty_log_test.c +++ b/tools/testing/selftests/kvm/dirty_log_test.c @@ -749,8 +749,8 @@ static void run_test(enum vm_guest_mode mode, void *arg) pr_info("guest physical test memory offset: 0x%lx\n", guest_test_phys_mem); - bmap = bitmap_alloc(host_num_pages); - host_bmap_track = bitmap_alloc(host_num_pages); + bmap = bitmap_zalloc(host_num_pages); + host_bmap_track = bitmap_zalloc(host_num_pages); /* Add an extra memory slot for testing dirty logging */ vm_userspace_mem_region_add(vm, VM_MEM_SRC_ANONYMOUS, diff --git a/tools/testing/selftests/kvm/x86_64/vmx_dirty_log_test.c b/tools/testing/selftests/kvm/x86_64/vmx_dirty_log_test.c index 06a64980a5d2..68f26a8b4f42 100644 --- a/tools/testing/selftests/kvm/x86_64/vmx_dirty_log_test.c +++ b/tools/testing/selftests/kvm/x86_64/vmx_dirty_log_test.c @@ -111,7 +111,7 @@ int main(int argc, char *argv[]) nested_map(vmx, vm, NESTED_TEST_MEM1, GUEST_TEST_MEM, 4096); nested_map(vmx, vm, NESTED_TEST_MEM2, GUEST_TEST_MEM, 4096); - bmap = bitmap_alloc(TEST_MEM_PAGES); + bmap = bitmap_zalloc(TEST_MEM_PAGES); host_test_mem = addr_gpa2hva(vm, GUEST_TEST_MEM); while (!done) { -- 2.30.2

4 years, 3 months

2
1
0 0

[PATCH] kunit: tool: Assert version requirement

by SeongJae Park

From: SeongJae Park <sjpark(a)amazon.de> Commit 87c9c1631788 ("kunit: tool: add support for QEMU") on the 'next' tree adds 'from __future__ import annotations' in 'kunit_kernel.py'. Because it is supported on only >=3.7 Python, people using older Python will get below error: Traceback (most recent call last): File "./tools/testing/kunit/kunit.py", line 20, in <module> import kunit_kernel File "/home/sjpark/linux/tools/testing/kunit/kunit_kernel.py", line 9 from __future__ import annotations ^ SyntaxError: future feature annotations is not defined This commit adds a version assertion in 'kunit.py', so that people get more explicit error message like below: Traceback (most recent call last): File "./tools/testing/kunit/kunit.py", line 15, in <module> assert sys.version_info >= (3, 7) AssertionError Signed-off-by: SeongJae Park <sjpark(a)amazon.de> --- tools/testing/kunit/kunit.py | 2 ++ 1 file changed, 2 insertions(+) diff --git a/tools/testing/kunit/kunit.py b/tools/testing/kunit/kunit.py index be8d8d4a4e08..748d88178506 100755 --- a/tools/testing/kunit/kunit.py +++ b/tools/testing/kunit/kunit.py @@ -12,6 +12,8 @@ import sys import os import time +assert sys.version_info >= (3, 7) + from collections import namedtuple from enum import Enum, auto -- 2.17.1

4 years, 3 months

4
11
0 0

BUG: lkdtm stack-entropy.sh test hangs

by Shuah Khan

Hi Kees, lkdtm stack-entropy.sh test hangs on Linux 5,14-rc1 - I tried root and non-root cases. Both hang. # selftests: lkdtm: stack-entropy.sh # ./stack-entropy.sh: 13: cannot create /sys/kernel/debug/provoke-crash/DIRECT: Permission denied If you have a fix for this, I would like to get this in soon. thanks, -- Shuah

4 years, 3 months

1
0
0 0

BUG: lkdtm stack-entropy.sh test hangs

by Shuah Khan

Hi Kees, lkdtm stack-entropy.sh test hangs on Linux 5,14-rc1 - I tried root and non-root cases. Both hang. # selftests: lkdtm: stack-entropy.sh # ./stack-entropy.sh: 13: cannot create /sys/kernel/debug/provoke-crash/DIRECT: Permission denied If you have a fix for this, I would like to get this in soon. thanks, -- Shuah

4 years, 3 months

1
0
0 0

[PATCH 5.10] selftests/resctrl: Fix incorrect parsing of option "-t"

by Xiaochen Shen

commit 1421ec684a43379b2aa3cfda20b03d38282dc990 upstream. Resctrl test suite accepts command line argument "-t" to specify the unit tests to run in the test list (e.g., -t mbm,mba,cmt,cat) as documented in the help. When calling strtok() to parse the option, the incorrect delimiters argument ":\t" is used. As a result, passing "-t mbm,mba,cmt,cat" throws an invalid option error. Fix this by using delimiters argument "," instead of ":\t" for parsing of unit tests list. At the same time, remove the unnecessary "spaces" between the unit tests in help documentation to prevent confusion. Fixes: 790bf585b0ee ("selftests/resctrl: Add Cache Allocation Technology (CAT) selftest") Fixes: 78941183d1b1 ("selftests/resctrl: Add Cache QoS Monitoring (CQM) selftest") Fixes: ecdbb911f22d ("selftests/resctrl: Add MBM test") Fixes: 034c7678dd2c ("selftests/resctrl: Add README for resctrl tests") Cc: stable(a)vger.kernel.org Signed-off-by: Xiaochen Shen <xiaochen.shen(a)intel.com> Reviewed-by: Tony Luck <tony.luck(a)intel.com> Signed-off-by: Shuah Khan <skhan(a)linuxfoundation.org> --- tools/testing/selftests/resctrl/README | 2 +- tools/testing/selftests/resctrl/resctrl_tests.c | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/tools/testing/selftests/resctrl/README b/tools/testing/selftests/resctrl/README index 6e5a0ff..20502cb 100644 --- a/tools/testing/selftests/resctrl/README +++ b/tools/testing/selftests/resctrl/README @@ -47,7 +47,7 @@ Parameter '-h' shows usage information. usage: resctrl_tests [-h] [-b "benchmark_cmd [options]"] [-t test list] [-n no_of_bits] -b benchmark_cmd [options]: run specified benchmark for MBM, MBA and CQM default benchmark is builtin fill_buf - -t test list: run tests specified in the test list, e.g. -t mbm, mba, cqm, cat + -t test list: run tests specified in the test list, e.g. -t mbm,mba,cqm,cat -n no_of_bits: run cache tests using specified no of bits in cache bit mask -p cpu_no: specify CPU number to run the test. 1 is default -h: help diff --git a/tools/testing/selftests/resctrl/resctrl_tests.c b/tools/testing/selftests/resctrl/resctrl_tests.c index ac22696..bd98746 100644 --- a/tools/testing/selftests/resctrl/resctrl_tests.c +++ b/tools/testing/selftests/resctrl/resctrl_tests.c @@ -40,7 +40,7 @@ static void cmd_help(void) printf("\t-b benchmark_cmd [options]: run specified benchmark for MBM, MBA and CQM"); printf("\t default benchmark is builtin fill_buf\n"); printf("\t-t test list: run tests specified in the test list, "); - printf("e.g. -t mbm, mba, cqm, cat\n"); + printf("e.g. -t mbm,mba,cqm,cat\n"); printf("\t-n no_of_bits: run cache tests using specified no of bits in cache bit mask\n"); printf("\t-p cpu_no: specify CPU number to run the test. 1 is default\n"); printf("\t-h: help\n"); @@ -98,7 +98,7 @@ int main(int argc, char **argv) return -1; } - token = strtok(NULL, ":\t"); + token = strtok(NULL, ","); } break; case 'p': -- 1.8.3.1

4 years, 3 months

1
0
0 0

[PATCH 5.13 749/800] selftests/sgx: remove checks for file execute permissions

by Greg Kroah-Hartman

From: Dave Hansen <dave.hansen(a)linux.intel.com> [ Upstream commit 4896df9d53ae5521f3ce83751e828ad70bc65c80 ] The SGX selftests can fail for a bunch of non-obvious reasons like 'noexec' permissions on /dev (which is the default *EVERYWHERE* it seems). A new test mistakenly also looked for +x permission on the /dev/sgx_enclave. File execute permissions really only apply to the ability of execve() to work on a file, *NOT* on the ability for an application to map the file with PROT_EXEC. SGX needs to mmap(PROT_EXEC), but doesn't need to execve() the device file. Remove the check. Fixes: 4284f7acb78b ("selftests/sgx: Improve error detection and messages") Reported-by: Tim Gardner <tim.gardner(a)canonical.com> Cc: Jarkko Sakkinen <jarkko(a)kernel.org> Cc: Reinette Chatre <reinette.chatre(a)intel.com> Cc: Dave Hansen <dave.hansen(a)linux.intel.com> Cc: Shuah Khan <shuah(a)kernel.org> Cc: linux-sgx(a)vger.kernel.org Cc: linux-kselftest(a)vger.kernel.org Cc: linux-kernel(a)vger.kernel.org Tested-by: Reinette Chatre <reinette.chatre(a)intel.com> Signed-off-by: Dave Hansen <dave.hansen(a)linux.intel.com> Reviewed-by: Jarkko Sakkinen <jarkko(a)kernel.org> Signed-off-by: Shuah Khan <skhan(a)linuxfoundation.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/sgx/load.c | 16 +++------------- 1 file changed, 3 insertions(+), 13 deletions(-) diff --git a/tools/testing/selftests/sgx/load.c b/tools/testing/selftests/sgx/load.c index f441ac34b4d4..bae78c3263d9 100644 --- a/tools/testing/selftests/sgx/load.c +++ b/tools/testing/selftests/sgx/load.c @@ -150,16 +150,6 @@ bool encl_load(const char *path, struct encl *encl) goto err; } - /* - * This just checks if the /dev file has these permission - * bits set. It does not check that the current user is - * the owner or in the owning group. - */ - if (!(sb.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH))) { - fprintf(stderr, "no execute permissions on device file %s\n", device_path); - goto err; - } - ptr = mmap(NULL, PAGE_SIZE, PROT_READ, MAP_SHARED, fd, 0); if (ptr == (void *)-1) { perror("mmap for read"); @@ -169,13 +159,13 @@ bool encl_load(const char *path, struct encl *encl) #define ERR_MSG \ "mmap() succeeded for PROT_READ, but failed for PROT_EXEC.\n" \ -" Check that current user has execute permissions on %s and \n" \ -" that /dev does not have noexec set: mount | grep \"/dev .*noexec\"\n" \ +" Check that /dev does not have noexec set:\n" \ +" \tmount | grep \"/dev .*noexec\"\n" \ " If so, remount it executable: mount -o remount,exec /dev\n\n" ptr = mmap(NULL, PAGE_SIZE, PROT_EXEC, MAP_SHARED, fd, 0); if (ptr == (void *)-1) { - fprintf(stderr, ERR_MSG, device_path); + fprintf(stderr, ERR_MSG); goto err; } munmap(ptr, PAGE_SIZE); -- 2.30.2

4 years, 3 months

1
0
0 0

[PATCH 5.13 681/800] selftests: splice: Adjust for handler fallback removal

by Greg Kroah-Hartman

From: Kees Cook <keescook(a)chromium.org> [ Upstream commit 6daf076b717d189f4d02a303d45edd5732341ec1 ] Some pseudo-filesystems do not have an explicit splice fops since adding commit 36e2c7421f02 ("fs: don't allow splice read/write without explicit ops"), and now will reject attempts to use splice() in those filesystem paths. Reported-by: kernel test robot <rong.a.chen(a)intel.com> Link: https://lore.kernel.org/lkml/202009181443.C2179FB@keescook/ Fixes: 36e2c7421f02 ("fs: don't allow splice read/write without explicit ops") Cc: Christoph Hellwig <hch(a)lst.de> Cc: Shuah Khan <shuah(a)kernel.org> Cc: linux-kselftest(a)vger.kernel.org Signed-off-by: Kees Cook <keescook(a)chromium.org> Signed-off-by: Shuah Khan <skhan(a)linuxfoundation.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- .../selftests/splice/short_splice_read.sh | 119 ++++++++++++++---- 1 file changed, 98 insertions(+), 21 deletions(-) diff --git a/tools/testing/selftests/splice/short_splice_read.sh b/tools/testing/selftests/splice/short_splice_read.sh index 7810d3589d9a..22b6c8910b18 100755 --- a/tools/testing/selftests/splice/short_splice_read.sh +++ b/tools/testing/selftests/splice/short_splice_read.sh @@ -1,21 +1,87 @@ #!/bin/sh # SPDX-License-Identifier: GPL-2.0 +# +# Test for mishandling of splice() on pseudofilesystems, which should catch +# bugs like 11990a5bd7e5 ("module: Correctly truncate sysfs sections output") +# +# Since splice fallback was removed as part of the set_fs() rework, many of these +# tests expect to fail now. See https://lore.kernel.org/lkml/202009181443.C2179FB@keescook/ set -e +DIR=$(dirname "$0") + ret=0 +expect_success() +{ + title="$1" + shift + + echo "" >&2 + echo "$title ..." >&2 + + set +e + "$@" + rc=$? + set -e + + case "$rc" in + 0) + echo "ok: $title succeeded" >&2 + ;; + 1) + echo "FAIL: $title should work" >&2 + ret=$(( ret + 1 )) + ;; + *) + echo "FAIL: something else went wrong" >&2 + ret=$(( ret + 1 )) + ;; + esac +} + +expect_failure() +{ + title="$1" + shift + + echo "" >&2 + echo "$title ..." >&2 + + set +e + "$@" + rc=$? + set -e + + case "$rc" in + 0) + echo "FAIL: $title unexpectedly worked" >&2 + ret=$(( ret + 1 )) + ;; + 1) + echo "ok: $title correctly failed" >&2 + ;; + *) + echo "FAIL: something else went wrong" >&2 + ret=$(( ret + 1 )) + ;; + esac +} + do_splice() { filename="$1" bytes="$2" expected="$3" + report="$4" - out=$(./splice_read "$filename" "$bytes" | cat) + out=$("$DIR"/splice_read "$filename" "$bytes" | cat) if [ "$out" = "$expected" ] ; then - echo "ok: $filename $bytes" + echo " matched $report" >&2 + return 0 else - echo "FAIL: $filename $bytes" - ret=1 + echo " no match: '$out' vs $report" >&2 + return 1 fi } @@ -23,34 +89,45 @@ test_splice() { filename="$1" + echo " checking $filename ..." >&2 + full=$(cat "$filename") + rc=$? + if [ $rc -ne 0 ] ; then + return 2 + fi + two=$(echo "$full" | grep -m1 . | cut -c-2) # Make sure full splice has the same contents as a standard read. - do_splice "$filename" 4096 "$full" + echo " splicing 4096 bytes ..." >&2 + if ! do_splice "$filename" 4096 "$full" "full read" ; then + return 1 + fi # Make sure a partial splice see the first two characters. - do_splice "$filename" 2 "$two" + echo " splicing 2 bytes ..." >&2 + if ! do_splice "$filename" 2 "$two" "'$two'" ; then + return 1 + fi + + return 0 } -# proc_single_open(), seq_read() -test_splice /proc/$$/limits -# special open, seq_read() -test_splice /proc/$$/comm +### /proc/$pid/ has no splice interface; these should all fail. +expect_failure "proc_single_open(), seq_read() splice" test_splice /proc/$$/limits +expect_failure "special open(), seq_read() splice" test_splice /proc/$$/comm -# proc_handler, proc_dointvec_minmax -test_splice /proc/sys/fs/nr_open -# proc_handler, proc_dostring -test_splice /proc/sys/kernel/modprobe -# proc_handler, special read -test_splice /proc/sys/kernel/version +### /proc/sys/ has a splice interface; these should all succeed. +expect_success "proc_handler: proc_dointvec_minmax() splice" test_splice /proc/sys/fs/nr_open +expect_success "proc_handler: proc_dostring() splice" test_splice /proc/sys/kernel/modprobe +expect_success "proc_handler: special read splice" test_splice /proc/sys/kernel/version +### /sys/ has no splice interface; these should all fail. if ! [ -d /sys/module/test_module/sections ] ; then - modprobe test_module + expect_success "test_module kernel module load" modprobe test_module fi -# kernfs, attr -test_splice /sys/module/test_module/coresize -# kernfs, binattr -test_splice /sys/module/test_module/sections/.init.text +expect_failure "kernfs attr splice" test_splice /sys/module/test_module/coresize +expect_failure "kernfs binattr splice" test_splice /sys/module/test_module/sections/.init.text exit $ret -- 2.30.2

4 years, 3 months

1
0
0 0

[PATCH 5.12 594/700] selftests: splice: Adjust for handler fallback removal

by Greg Kroah-Hartman

From: Kees Cook <keescook(a)chromium.org> [ Upstream commit 6daf076b717d189f4d02a303d45edd5732341ec1 ] Some pseudo-filesystems do not have an explicit splice fops since adding commit 36e2c7421f02 ("fs: don't allow splice read/write without explicit ops"), and now will reject attempts to use splice() in those filesystem paths. Reported-by: kernel test robot <rong.a.chen(a)intel.com> Link: https://lore.kernel.org/lkml/202009181443.C2179FB@keescook/ Fixes: 36e2c7421f02 ("fs: don't allow splice read/write without explicit ops") Cc: Christoph Hellwig <hch(a)lst.de> Cc: Shuah Khan <shuah(a)kernel.org> Cc: linux-kselftest(a)vger.kernel.org Signed-off-by: Kees Cook <keescook(a)chromium.org> Signed-off-by: Shuah Khan <skhan(a)linuxfoundation.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- .../selftests/splice/short_splice_read.sh | 119 ++++++++++++++---- 1 file changed, 98 insertions(+), 21 deletions(-) diff --git a/tools/testing/selftests/splice/short_splice_read.sh b/tools/testing/selftests/splice/short_splice_read.sh index 7810d3589d9a..22b6c8910b18 100755 --- a/tools/testing/selftests/splice/short_splice_read.sh +++ b/tools/testing/selftests/splice/short_splice_read.sh @@ -1,21 +1,87 @@ #!/bin/sh # SPDX-License-Identifier: GPL-2.0 +# +# Test for mishandling of splice() on pseudofilesystems, which should catch +# bugs like 11990a5bd7e5 ("module: Correctly truncate sysfs sections output") +# +# Since splice fallback was removed as part of the set_fs() rework, many of these +# tests expect to fail now. See https://lore.kernel.org/lkml/202009181443.C2179FB@keescook/ set -e +DIR=$(dirname "$0") + ret=0 +expect_success() +{ + title="$1" + shift + + echo "" >&2 + echo "$title ..." >&2 + + set +e + "$@" + rc=$? + set -e + + case "$rc" in + 0) + echo "ok: $title succeeded" >&2 + ;; + 1) + echo "FAIL: $title should work" >&2 + ret=$(( ret + 1 )) + ;; + *) + echo "FAIL: something else went wrong" >&2 + ret=$(( ret + 1 )) + ;; + esac +} + +expect_failure() +{ + title="$1" + shift + + echo "" >&2 + echo "$title ..." >&2 + + set +e + "$@" + rc=$? + set -e + + case "$rc" in + 0) + echo "FAIL: $title unexpectedly worked" >&2 + ret=$(( ret + 1 )) + ;; + 1) + echo "ok: $title correctly failed" >&2 + ;; + *) + echo "FAIL: something else went wrong" >&2 + ret=$(( ret + 1 )) + ;; + esac +} + do_splice() { filename="$1" bytes="$2" expected="$3" + report="$4" - out=$(./splice_read "$filename" "$bytes" | cat) + out=$("$DIR"/splice_read "$filename" "$bytes" | cat) if [ "$out" = "$expected" ] ; then - echo "ok: $filename $bytes" + echo " matched $report" >&2 + return 0 else - echo "FAIL: $filename $bytes" - ret=1 + echo " no match: '$out' vs $report" >&2 + return 1 fi } @@ -23,34 +89,45 @@ test_splice() { filename="$1" + echo " checking $filename ..." >&2 + full=$(cat "$filename") + rc=$? + if [ $rc -ne 0 ] ; then + return 2 + fi + two=$(echo "$full" | grep -m1 . | cut -c-2) # Make sure full splice has the same contents as a standard read. - do_splice "$filename" 4096 "$full" + echo " splicing 4096 bytes ..." >&2 + if ! do_splice "$filename" 4096 "$full" "full read" ; then + return 1 + fi # Make sure a partial splice see the first two characters. - do_splice "$filename" 2 "$two" + echo " splicing 2 bytes ..." >&2 + if ! do_splice "$filename" 2 "$two" "'$two'" ; then + return 1 + fi + + return 0 } -# proc_single_open(), seq_read() -test_splice /proc/$$/limits -# special open, seq_read() -test_splice /proc/$$/comm +### /proc/$pid/ has no splice interface; these should all fail. +expect_failure "proc_single_open(), seq_read() splice" test_splice /proc/$$/limits +expect_failure "special open(), seq_read() splice" test_splice /proc/$$/comm -# proc_handler, proc_dointvec_minmax -test_splice /proc/sys/fs/nr_open -# proc_handler, proc_dostring -test_splice /proc/sys/kernel/modprobe -# proc_handler, special read -test_splice /proc/sys/kernel/version +### /proc/sys/ has a splice interface; these should all succeed. +expect_success "proc_handler: proc_dointvec_minmax() splice" test_splice /proc/sys/fs/nr_open +expect_success "proc_handler: proc_dostring() splice" test_splice /proc/sys/kernel/modprobe +expect_success "proc_handler: special read splice" test_splice /proc/sys/kernel/version +### /sys/ has no splice interface; these should all fail. if ! [ -d /sys/module/test_module/sections ] ; then - modprobe test_module + expect_success "test_module kernel module load" modprobe test_module fi -# kernfs, attr -test_splice /sys/module/test_module/coresize -# kernfs, binattr -test_splice /sys/module/test_module/sections/.init.text +expect_failure "kernfs attr splice" test_splice /sys/module/test_module/coresize +expect_failure "kernfs binattr splice" test_splice /sys/module/test_module/sections/.init.text exit $ret -- 2.30.2

4 years, 3 months

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[PATCH 5.10 499/593] selftests: splice: Adjust for handler fallback removal

by Greg Kroah-Hartman

From: Kees Cook <keescook(a)chromium.org> [ Upstream commit 6daf076b717d189f4d02a303d45edd5732341ec1 ] Some pseudo-filesystems do not have an explicit splice fops since adding commit 36e2c7421f02 ("fs: don't allow splice read/write without explicit ops"), and now will reject attempts to use splice() in those filesystem paths. Reported-by: kernel test robot <rong.a.chen(a)intel.com> Link: https://lore.kernel.org/lkml/202009181443.C2179FB@keescook/ Fixes: 36e2c7421f02 ("fs: don't allow splice read/write without explicit ops") Cc: Christoph Hellwig <hch(a)lst.de> Cc: Shuah Khan <shuah(a)kernel.org> Cc: linux-kselftest(a)vger.kernel.org Signed-off-by: Kees Cook <keescook(a)chromium.org> Signed-off-by: Shuah Khan <skhan(a)linuxfoundation.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- .../selftests/splice/short_splice_read.sh | 119 ++++++++++++++---- 1 file changed, 98 insertions(+), 21 deletions(-) diff --git a/tools/testing/selftests/splice/short_splice_read.sh b/tools/testing/selftests/splice/short_splice_read.sh index 7810d3589d9a..22b6c8910b18 100755 --- a/tools/testing/selftests/splice/short_splice_read.sh +++ b/tools/testing/selftests/splice/short_splice_read.sh @@ -1,21 +1,87 @@ #!/bin/sh # SPDX-License-Identifier: GPL-2.0 +# +# Test for mishandling of splice() on pseudofilesystems, which should catch +# bugs like 11990a5bd7e5 ("module: Correctly truncate sysfs sections output") +# +# Since splice fallback was removed as part of the set_fs() rework, many of these +# tests expect to fail now. See https://lore.kernel.org/lkml/202009181443.C2179FB@keescook/ set -e +DIR=$(dirname "$0") + ret=0 +expect_success() +{ + title="$1" + shift + + echo "" >&2 + echo "$title ..." >&2 + + set +e + "$@" + rc=$? + set -e + + case "$rc" in + 0) + echo "ok: $title succeeded" >&2 + ;; + 1) + echo "FAIL: $title should work" >&2 + ret=$(( ret + 1 )) + ;; + *) + echo "FAIL: something else went wrong" >&2 + ret=$(( ret + 1 )) + ;; + esac +} + +expect_failure() +{ + title="$1" + shift + + echo "" >&2 + echo "$title ..." >&2 + + set +e + "$@" + rc=$? + set -e + + case "$rc" in + 0) + echo "FAIL: $title unexpectedly worked" >&2 + ret=$(( ret + 1 )) + ;; + 1) + echo "ok: $title correctly failed" >&2 + ;; + *) + echo "FAIL: something else went wrong" >&2 + ret=$(( ret + 1 )) + ;; + esac +} + do_splice() { filename="$1" bytes="$2" expected="$3" + report="$4" - out=$(./splice_read "$filename" "$bytes" | cat) + out=$("$DIR"/splice_read "$filename" "$bytes" | cat) if [ "$out" = "$expected" ] ; then - echo "ok: $filename $bytes" + echo " matched $report" >&2 + return 0 else - echo "FAIL: $filename $bytes" - ret=1 + echo " no match: '$out' vs $report" >&2 + return 1 fi } @@ -23,34 +89,45 @@ test_splice() { filename="$1" + echo " checking $filename ..." >&2 + full=$(cat "$filename") + rc=$? + if [ $rc -ne 0 ] ; then + return 2 + fi + two=$(echo "$full" | grep -m1 . | cut -c-2) # Make sure full splice has the same contents as a standard read. - do_splice "$filename" 4096 "$full" + echo " splicing 4096 bytes ..." >&2 + if ! do_splice "$filename" 4096 "$full" "full read" ; then + return 1 + fi # Make sure a partial splice see the first two characters. - do_splice "$filename" 2 "$two" + echo " splicing 2 bytes ..." >&2 + if ! do_splice "$filename" 2 "$two" "'$two'" ; then + return 1 + fi + + return 0 } -# proc_single_open(), seq_read() -test_splice /proc/$$/limits -# special open, seq_read() -test_splice /proc/$$/comm +### /proc/$pid/ has no splice interface; these should all fail. +expect_failure "proc_single_open(), seq_read() splice" test_splice /proc/$$/limits +expect_failure "special open(), seq_read() splice" test_splice /proc/$$/comm -# proc_handler, proc_dointvec_minmax -test_splice /proc/sys/fs/nr_open -# proc_handler, proc_dostring -test_splice /proc/sys/kernel/modprobe -# proc_handler, special read -test_splice /proc/sys/kernel/version +### /proc/sys/ has a splice interface; these should all succeed. +expect_success "proc_handler: proc_dointvec_minmax() splice" test_splice /proc/sys/fs/nr_open +expect_success "proc_handler: proc_dostring() splice" test_splice /proc/sys/kernel/modprobe +expect_success "proc_handler: special read splice" test_splice /proc/sys/kernel/version +### /sys/ has no splice interface; these should all fail. if ! [ -d /sys/module/test_module/sections ] ; then - modprobe test_module + expect_success "test_module kernel module load" modprobe test_module fi -# kernfs, attr -test_splice /sys/module/test_module/coresize -# kernfs, binattr -test_splice /sys/module/test_module/sections/.init.text +expect_failure "kernfs attr splice" test_splice /sys/module/test_module/coresize +expect_failure "kernfs binattr splice" test_splice /sys/module/test_module/sections/.init.text exit $ret -- 2.30.2

4 years, 3 months

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[PATCH v7 23/26] selftest/x86/amx: Test cases for the AMX state management

by Chang S. Bae

This selftest verifies that the XSTATE arch_prctl works for AMX state and that a forked task has the AMX state in the INIT-state. In addition, this test verifies that the kernel correctly context switches unique AMX data, when multiple threads are using AMX. The test also verifies that ptrace() can insert data into existing threads. Finally, add a test case to verify that unused states are excluded, by leaving a known pattern on the signal stack and verifying that it is still intact after taking a subsequent signal. These test cases do not depend on AMX compiler support, as they employ userspace-XSAVE directly to access AMX state. Signed-off-by: Chang S. Bae <chang.seok.bae(a)intel.com> Reviewed-by: Len Brown <len.brown(a)intel.com> Cc: linux-kernel(a)vger.kernel.org Cc: linux-kselftest(a)vger.kernel.org --- Changes from v6: * Adjust for the syscall and ptrace path changes. Changes from v5: * Adjusted arch_prctl for the updated ABI. * Added test for the dynamic signal xstate buffer. * Fixed XSAVE buffer's header data. Changes from v4: * Added test for arch_prctl. * Excluded tile config details to focus on testing the kernel's ability to manage dynamic user state. * Removed tile instructions. * Simplified the fork() and ptrace() test routine. * Massaged the changelog. Changes from v2: * Updated the test messages and the changelog as tile data is not inherited to a child anymore. * Removed bytecode for the instructions already supported by binutils. * Changed to check the XSAVE availability in a reliable way. Changes from v1: * Removed signal testing code --- tools/testing/selftests/x86/Makefile | 2 +- tools/testing/selftests/x86/amx.c | 883 +++++++++++++++++++++++++++ 2 files changed, 884 insertions(+), 1 deletion(-) create mode 100644 tools/testing/selftests/x86/amx.c diff --git a/tools/testing/selftests/x86/Makefile b/tools/testing/selftests/x86/Makefile index b4142cd1c5c2..8a1f62ab3c8e 100644 --- a/tools/testing/selftests/x86/Makefile +++ b/tools/testing/selftests/x86/Makefile @@ -18,7 +18,7 @@ TARGETS_C_32BIT_ONLY := entry_from_vm86 test_syscall_vdso unwind_vdso \ test_FCMOV test_FCOMI test_FISTTP \ vdso_restorer TARGETS_C_64BIT_ONLY := fsgsbase sysret_rip syscall_numbering \ - corrupt_xstate_header + corrupt_xstate_header amx # Some selftests require 32bit support enabled also on 64bit systems TARGETS_C_32BIT_NEEDED := ldt_gdt ptrace_syscall diff --git a/tools/testing/selftests/x86/amx.c b/tools/testing/selftests/x86/amx.c new file mode 100644 index 000000000000..154dc750dae3 --- /dev/null +++ b/tools/testing/selftests/x86/amx.c @@ -0,0 +1,883 @@ +// SPDX-License-Identifier: GPL-2.0 + +#define _GNU_SOURCE +#include <err.h> +#include <errno.h> +#include <elf.h> +#include <pthread.h> +#include <setjmp.h> +#include <stdio.h> +#include <string.h> +#include <stdbool.h> +#include <unistd.h> +#include <x86intrin.h> + +#include <linux/futex.h> + +#include <sys/ptrace.h> +#include <sys/shm.h> +#include <sys/syscall.h> +#include <sys/wait.h> +#include <sys/uio.h> + + +#ifndef __x86_64__ +# error This test is 64-bit only +#endif + +static inline uint64_t __xgetbv(uint32_t index) +{ + uint32_t eax, edx; + + asm volatile("xgetbv;" + : "=a" (eax), "=d" (edx) + : "c" (index)); + return eax + ((uint64_t)edx << 32); +} + +static inline void __cpuid(uint32_t *eax, uint32_t *ebx, uint32_t *ecx, uint32_t *edx) +{ + asm volatile("cpuid;" + : "=a" (*eax), "=b" (*ebx), "=c" (*ecx), "=d" (*edx) + : "0" (*eax), "2" (*ecx)); +} + +static inline void __xsave(void *buffer, uint32_t lo, uint32_t hi) +{ + asm volatile("xsave (%%rdi)" + : : "D" (buffer), "a" (lo), "d" (hi) + : "memory"); +} + +static inline void __xrstor(void *buffer, uint32_t lo, uint32_t hi) +{ + asm volatile("xrstor (%%rdi)" + : : "D" (buffer), "a" (lo), "d" (hi)); +} + +static void sethandler(int sig, void (*handler)(int, siginfo_t *, void *), + int flags) +{ + struct sigaction sa; + + memset(&sa, 0, sizeof(sa)); + sa.sa_sigaction = handler; + sa.sa_flags = SA_SIGINFO | flags; + sigemptyset(&sa.sa_mask); + if (sigaction(sig, &sa, 0)) + err(1, "sigaction"); +} + +static void clearhandler(int sig) +{ + struct sigaction sa; + + memset(&sa, 0, sizeof(sa)); + sa.sa_handler = SIG_DFL; + sigemptyset(&sa.sa_mask); + if (sigaction(sig, &sa, 0)) + err(1, "sigaction"); +} + +static jmp_buf jmpbuf; + +/* Hardware info check: */ + +static bool xsave_disabled; + +static void handle_sigill(int sig, siginfo_t *si, void *ctx_void) +{ + xsave_disabled = true; + siglongjmp(jmpbuf, 1); +} + +#define XFEATURE_XTILECFG 17 +#define XFEATURE_XTILEDATA 18 +#define XFEATURE_MASK_XTILECFG (1 << XFEATURE_XTILECFG) +#define XFEATURE_MASK_XTILEDATA (1 << XFEATURE_XTILEDATA) +#define XFEATURE_MASK_XTILE (XFEATURE_MASK_XTILECFG | XFEATURE_MASK_XTILEDATA) + +static inline bool check_xsave_capability(void) +{ + sethandler(SIGILL, handle_sigill, 0); + + if ((!sigsetjmp(jmpbuf, 1)) && (__xgetbv(0) & XFEATURE_MASK_XTILEDATA)) { + clearhandler(SIGILL); + return true; + } + + clearhandler(SIGILL); + return false; +} + +static uint32_t xsave_size; + +static uint32_t xsave_xtiledata_offset; +static uint32_t xsave_xtiledata_size; + +static uint32_t xsave_xtilecfg_offset; +static uint32_t xsave_xtilecfg_size; + +#define XSTATE_CPUID 0xd +#define XSTATE_USER_STATE_SUBLEAVE 0x0 + +static void check_cpuid(void) +{ + uint32_t eax, ebx, ecx, edx; + + eax = XSTATE_CPUID; + ecx = XSTATE_USER_STATE_SUBLEAVE; + + __cpuid(&eax, &ebx, &ecx, &edx); + if (!ebx) + err(1, "xstate cpuid: xsave size"); + + xsave_size = ebx; + + eax = XSTATE_CPUID; + ecx = XFEATURE_XTILECFG; + + __cpuid(&eax, &ebx, &ecx, &edx); + if (!eax || !ebx) + err(1, "xstate cpuid: tile config state"); + + xsave_xtilecfg_size = eax; + xsave_xtilecfg_offset = ebx; + + eax = XSTATE_CPUID; + ecx = XFEATURE_XTILEDATA; + + __cpuid(&eax, &ebx, &ecx, &edx); + if (!eax || !ebx) + err(1, "xstate cpuid: tile data state"); + + xsave_xtiledata_size = eax; + xsave_xtiledata_offset = ebx; +} + +/* The helpers for managing XSAVE buffer and tile states: */ + +#define XSAVE_HDR_OFFSET 512 +#define XSAVE_HDR_SIZE 64 + +static inline void clr_xstatehdr(void *xsave) +{ + memset(xsave + XSAVE_HDR_OFFSET, 0, XSAVE_HDR_SIZE); +} + +static inline uint64_t get_xstatebv(void *xsave) +{ + return *(uint64_t *)(xsave + XSAVE_HDR_OFFSET); +} + +static inline void set_xstatebv(void *xsave, uint64_t bv) +{ + *(uint64_t *)(xsave + XSAVE_HDR_OFFSET) = bv; +} + +static void set_rand_tiledata(void *tiledata) +{ + int *ptr = tiledata; + int data = rand(); + int i; + + for (i = 0; i < xsave_xtiledata_size / sizeof(int); i++, ptr++) + *ptr = data; +} + +static void *xsave_buffer, *tiledata; +static int nerrs, errs; + +/* See 'struct _fpx_sw_bytes' at sigcontext.h */ +#define SW_BYTES_OFFSET 464 +/* N.B. The struct's field name varies so read from the offset. */ +#define SW_BYTES_BV_OFFSET SW_BYTES_OFFSET + 8 + +static inline struct _fpx_sw_bytes *get_fpx_sw_bytes(void *xsave) +{ + return (struct _fpx_sw_bytes *)(xsave + SW_BYTES_OFFSET); +} + +static inline uint64_t get_fpx_sw_bytes_xstatebv(void *xsave) +{ + return *(uint64_t *)(xsave + SW_BYTES_BV_OFFSET); +} + +static volatile bool sigsegved; + +static void handle_sigsegv(int sig, siginfo_t *si, void *ctx_void) +{ + ucontext_t *ctx = (ucontext_t*)ctx_void; + void *xsave = ctx->uc_mcontext.fpregs; + struct _fpx_sw_bytes *sw_bytes; + + printf("\tAt SIGSEGV handler,\n"); + + sw_bytes = get_fpx_sw_bytes(xsave); + if (!(sw_bytes->xstate_size < xsave_xtiledata_offset) && + !(get_fpx_sw_bytes_xstatebv(xsave) & XFEATURE_MASK_XTILEDATA)) { + printf("[OK]\tValid xstate size and mask in the SW data of xstate buffer.\n"); + } else { + errs++; + printf("[FAIL]\tInvalid xstate size and/or mask in the SW data of xstate buf.\n"); + } + + sigsegved = true; + ctx->uc_mcontext.gregs[REG_RIP] += 3; /* Skip the faulting XRSTOR */ +} + +/* Return true if XRSTOR is successful; otherwise, false. */ +static bool inline xrstor(void *buffer, uint32_t lo, uint32_t hi) +{ + sigsegved = false; + __xrstor(buffer, lo, hi); + return !sigsegved; +} + +/* arch_prctl test */ + +#define ARCH_SET_XSTATE_ENABLE 0x1021 +#define ARCH_GET_XSTATE_ENABLE 0x1022 + +static void enable_tiledata(void) +{ + long rc; + + rc = syscall(SYS_arch_prctl, ARCH_SET_XSTATE_ENABLE, XFEATURE_MASK_XTILEDATA); + if (rc) + goto fail; + + rc = syscall(SYS_arch_prctl, ARCH_GET_XSTATE_ENABLE, 0); + if (rc & XFEATURE_MASK_XTILEDATA) + return; + +fail: + err(1, "ARCH_SET_XSTATE_ENABLE"); +} + +#define TEST_EXECV_ARG "nested" + +static void test_arch_prctl(int argc, char **argv) +{ + pid_t parent, child, grandchild; + + parent = fork(); + if (parent < 0) { + err(1, "fork"); + } else if (parent > 0) { + int status; + + wait(&status); + if (!WIFEXITED(status) || WEXITSTATUS(status)) + err(1, "arch_prctl test parent exit"); + return; + } + + printf("[RUN]\tCheck ARCH_SET_XSTATE_ENABLE around process fork().\n"); + + printf("\tFork a child.\n"); + child = fork(); + if (child < 0) { + err(1, "fork"); + } else if (child > 0) { + int status; + + enable_tiledata(); + printf("\tDo ARCH_SET_XSTATE_ENABLE at parent\n"); + + wait(&status); + if (!WIFEXITED(status) || WEXITSTATUS(status)) + err(1, "arch_prctl test child exit"); + _exit(0); + } + + clr_xstatehdr(xsave_buffer); + set_xstatebv(xsave_buffer, XFEATURE_MASK_XTILEDATA); + set_rand_tiledata(xsave_buffer + xsave_xtiledata_offset); + + printf("\tLoad tile data without ARCH_SET_XSTATE_ENABLE at child.\n"); + if (xrstor(xsave_buffer, -1, -1)) { + nerrs++; + printf("[FAIL]\tSucceeded at child.\n"); + } else { + printf("[OK]\tBlocked at child.\n"); + } + + printf("\tDo ARCH_SET_XSTATE_ENABLE at child.\n"); + enable_tiledata(); + + printf("\tLoad tile data with ARCH_SET_XSTATE_ENABLE at child:\n"); + sigsegved = false; + if (xrstor(xsave_buffer, -1, -1)) { + printf("[OK]\tSucceeded at child.\n"); + } else { + nerrs++; + printf("[FAIL]\tBlocked at child.\n"); + } + + printf("\tFork a grandchild.\n"); + grandchild = fork(); + if (grandchild < 0) { + err(1, "fork"); + } else if (!grandchild) { + char *args[] = {argv[0], TEST_EXECV_ARG, NULL}; + + if (xrstor(xsave_buffer, -1, -1)) { + printf("[OK]\tSucceeded at grandchild.\n"); + } else { + nerrs++; + printf("[FAIL]\tBlocked at grandchild.\n"); + } + nerrs += execv(args[0], args); + } else { + int status; + + wait(&status); + if (!WIFEXITED(status) || WEXITSTATUS(status)) + err(1, "fork test grandchild"); + } + _exit(0); +} + +/* Testing tile data inheritance */ + +static void test_fork(void) +{ + pid_t child, grandchild; + + child = fork(); + if (child < 0) { + err(1, "fork"); + } else if (child > 0) { + int status; + + wait(&status); + if (!WIFEXITED(status) || WEXITSTATUS(status)) + err(1, "fork test child"); + return; + } + + printf("[RUN]\tCheck tile data inheritance.\n\tBefore fork(), load tile data -- yes:\n"); + + clr_xstatehdr(xsave_buffer); + set_xstatebv(xsave_buffer, XFEATURE_MASK_XTILE); + set_rand_tiledata(xsave_buffer + xsave_xtiledata_offset); + memset(xsave_buffer + xsave_xtilecfg_offset, 1, xsave_xtilecfg_size); + xrstor(xsave_buffer, -1, -1); + + grandchild = fork(); + if (grandchild < 0) { + err(1, "fork"); + } else if (grandchild > 0) { + int status; + + wait(&status); + if (!WIFEXITED(status) || WEXITSTATUS(status)) + err(1, "fork test grand child"); + _exit(0); + } + + if (__xgetbv(1) & XFEATURE_MASK_XTILE) { + nerrs++; + printf("[FAIL]\tIn a child, AMX state is not initialized.\n"); + } else { + printf("[OK]\tIn a child, AMX state is initialized.\n"); + } + _exit(0); +} + +/* Context switching test */ + +#define ITERATIONS 10 +#define NUM_THREADS 5 + +struct futex_info { + int current; + int *futex; + int next; +}; + +static inline void command_wait(struct futex_info *info, int value) +{ + do { + sched_yield(); + } while (syscall(SYS_futex, info->futex, FUTEX_WAIT, value, 0, 0, 0)); +} + +static inline void command_wake(struct futex_info *info, int value) +{ + do { + *info->futex = value; + while (!syscall(SYS_futex, info->futex, FUTEX_WAKE, 1, 0, 0, 0)) + sched_yield(); + } while (0); +} + +static inline int get_iterative_value(int id) +{ + return ((id << 1) & ~0x1); +} + +static inline int get_endpoint_value(int id) +{ + return ((id << 1) | 0x1); +} + +static void *check_tiledata(void *info) +{ + struct futex_info *finfo = (struct futex_info *)info; + void *xsave, *tiledata; + int i; + + xsave = aligned_alloc(64, xsave_size); + if (!xsave) + err(1, "aligned_alloc()"); + + tiledata = malloc(xsave_xtiledata_size); + if (!tiledata) + err(1, "malloc()"); + + set_xstatebv(xsave, XFEATURE_MASK_XTILEDATA); + set_rand_tiledata(xsave + xsave_xtiledata_offset); + xrstor(xsave, -1, -1); + memcpy(tiledata, xsave + xsave_xtiledata_offset, xsave_xtiledata_size); + + for (i = 0; i < ITERATIONS; i++) { + command_wait(finfo, get_iterative_value(finfo->current)); + + __xsave(xsave, XFEATURE_MASK_XTILEDATA, 0); + if (memcmp(tiledata, xsave + xsave_xtiledata_offset, xsave_xtiledata_size)) + errs++; + + set_rand_tiledata(xsave + xsave_xtiledata_offset); + xrstor(xsave, -1, -1); + memcpy(tiledata, xsave + xsave_xtiledata_offset, xsave_xtiledata_size); + + command_wake(finfo, get_iterative_value(finfo->next)); + } + + command_wait(finfo, get_endpoint_value(finfo->current)); + + free(xsave); + free(tiledata); + return NULL; +} + +static int create_threads(int num, struct futex_info *finfo) +{ + const int shm_id = shmget(IPC_PRIVATE, sizeof(int), IPC_CREAT | 0666); + int *futex = shmat(shm_id, NULL, 0); + pthread_t thread; + int i; + + for (i = 0; i < num; i++) { + finfo[i].futex = futex; + finfo[i].current = i + 1; + finfo[i].next = (i + 2) % (num + 1); + + if (pthread_create(&thread, NULL, check_tiledata, &finfo[i])) + err(1, "pthread_create()"); + } + return 0; +} + +static void test_context_switch(void) +{ + struct futex_info *finfo; + int i; + + printf("[RUN]\tCheck tile data context switches.\n"); + printf("\t# of context switches -- %u, # of threads -- %d:\n", + ITERATIONS * NUM_THREADS, NUM_THREADS); + + errs = 0; + + finfo = malloc(sizeof(*finfo) * NUM_THREADS); + if (!finfo) + err(1, "malloc()"); + + create_threads(NUM_THREADS, finfo); + + for (i = 0; i < ITERATIONS; i++) { + command_wake(finfo, get_iterative_value(1)); + command_wait(finfo, get_iterative_value(0)); + } + + for (i = 1; i <= NUM_THREADS; i++) + command_wake(finfo, get_endpoint_value(i)); + + if (errs) { + nerrs += errs; + printf("[FAIL]\tIncorrect cases were found -- (%d / %u).\n", + errs, ITERATIONS * NUM_THREADS); + } else { + printf("[OK]\tNo incorrect case was found.\n"); + } + + free(finfo); + return; +} + +/* Ptrace test */ + +static bool allow_ptracee_dynstate; + +static int inject_tiledata(pid_t target) +{ + struct iovec iov; + + iov.iov_base = xsave_buffer; + iov.iov_len = xsave_size; + + clr_xstatehdr(xsave_buffer); + set_xstatebv(xsave_buffer, XFEATURE_MASK_XTILEDATA); + set_rand_tiledata(xsave_buffer + xsave_xtiledata_offset); + memcpy(tiledata, xsave_buffer + xsave_xtiledata_offset, xsave_xtiledata_size); + + if (ptrace(PTRACE_SETREGSET, target, (uint32_t)NT_X86_XSTATE, &iov)) { + if (errno != EFAULT) + err(1, "PTRACE_SETREGSET"); + else + return errno; + } + + if (ptrace(PTRACE_GETREGSET, target, (uint32_t)NT_X86_XSTATE, &iov)) + err(1, "PTRACE_GETREGSET"); + + if (!memcmp(tiledata, xsave_buffer + xsave_xtiledata_offset, xsave_xtiledata_size)) + return 0; + else + return -1; +} + +static void test_tile_write(void) +{ + int status, rc; + pid_t child; + bool pass; + + child = fork(); + if (child < 0) { + err(1, "fork"); + } else if (!child) { + if (allow_ptracee_dynstate) + enable_tiledata(); + + if (ptrace(PTRACE_TRACEME, 0, NULL, NULL)) + err(1, "PTRACE_TRACEME"); + + raise(SIGTRAP); + _exit(0); + } + + do { + wait(&status); + } while (WSTOPSIG(status) != SIGTRAP); + + printf("\tInject tile data %s ARCH_SET_XSTATE_ENABLE\n", + allow_ptracee_dynstate ? "with" : "without"); + + rc = inject_tiledata(child); + pass = (rc == EFAULT && !allow_ptracee_dynstate) || + (!rc && allow_ptracee_dynstate); + if (!pass) + nerrs++; + printf("[%s]\tTile data was %swritten on ptracee.\n", + pass ? "OK" : "FAIL", errs ? "not " : ""); + + ptrace(PTRACE_DETACH, child, NULL, NULL); + wait(&status); + if (!WIFEXITED(status) || WEXITSTATUS(status)) + err(1, "ptrace test"); + + return; +} + +static void test_ptrace(void) +{ + printf("[RUN]\tCheck ptrace() to inject tile data.\n"); + + allow_ptracee_dynstate = false; + test_tile_write(); + + allow_ptracee_dynstate = true; + test_tile_write(); +} + +/* Signal handling test */ + +static bool init_tiledata_state_before_signal; +static bool load_tiledata_at_first; +static volatile bool sigalarmed, sigused; + +#define SIGFRAME_TILEDATA_SIGNATURE 0xFF + +static void handle_sigusr1(int sig, siginfo_t *info, void *ctx_void) +{ + void *xsave = ((ucontext_t *)ctx_void)->uc_mcontext.fpregs; + struct _fpx_sw_bytes *sw_bytes = get_fpx_sw_bytes(xsave); + + if (sw_bytes->xstate_size >= (xsave_xtiledata_offset + xsave_xtiledata_size)) { + memset(xsave + xsave_xtiledata_offset, SIGFRAME_TILEDATA_SIGNATURE, + xsave_xtiledata_size); + } + + sigused = true; +} + +static void handle_sigalrm(int sig, siginfo_t *info, void *ctx_void) +{ + bool tiledata_written = false, tiledata_bit, tiledata_expected; + void *xsave = ((ucontext_t *)ctx_void)->uc_mcontext.fpregs; + struct _fpx_sw_bytes *sw_bytes = get_fpx_sw_bytes(xsave); + char d = SIGFRAME_TILEDATA_SIGNATURE; + int i; + + printf("\tAt signal delivery,\n"); + + /* Check SW reserved data in the buffer: */ + if ((sw_bytes->xstate_size >= (xsave_xtiledata_offset + xsave_xtiledata_size)) && + (get_fpx_sw_bytes_xstatebv(xsave) & XFEATURE_MASK_XTILEDATA)) { + printf("[OK]\tValid xstate size and mask in the SW data of xstate buffer\n"); + } else { + errs++; + printf("[FAIL]\tInvalid xstate size and/or mask in the SW data of xstate buffer\n"); + } + + /* Check XSAVE buffer header: */ + tiledata_expected = (load_tiledata_at_first && !init_tiledata_state_before_signal); + tiledata_bit = get_xstatebv(xsave) & XFEATURE_MASK_XTILEDATA; + + if (tiledata_bit == tiledata_expected) { + printf("[OK]\tTiledata bit is %sset in XSTATE_BV of xstate buffer.\n", + tiledata_bit ? "" : "not "); + } else { + errs++; + printf("[FAIL]\tTiledata bit is %sset in XSTATE_BV of xstate buffer.\n", + tiledata_bit ? "" : "not "); + } + + /* + * Check the sigframe data: + */ + + tiledata_expected = (load_tiledata_at_first && !init_tiledata_state_before_signal); + + if (sw_bytes->xstate_size >= (xsave_xtiledata_offset + xsave_xtiledata_size)) { + for (i = 0; i < xsave_xtiledata_size; i++) { + tiledata_written = memcmp(xsave + xsave_xtiledata_offset + i, &d, 1); + if (tiledata_written) + break; + } + } + + if (tiledata_written == tiledata_expected) { + printf("[OK]\tTiledata is %ssaved in signal buffer.\n", + tiledata_written ? "" : "not "); + } else { + errs++; + printf("[FAIL]\tTiledata is %ssaved in signal buffer.\n", + tiledata_written ? "" : "not "); + } + + /* Load random tiledata to test sigreturn: */ + clr_xstatehdr(xsave_buffer); + set_xstatebv(xsave_buffer, XFEATURE_MASK_XTILEDATA); + set_rand_tiledata(xsave_buffer + xsave_xtiledata_offset); + xrstor(xsave_buffer, -1, -1); + sigalarmed = true; +} + +static void test_signal_handling(void) +{ + pid_t child; + + sigalarmed = false; + sigused = false; + + child = fork(); + if (child < 0) { + err(1, "fork"); + } else if (child > 0) { + do { + int status; + + wait(&status); + if (WIFSTOPPED(status)) + kill(child, SIGCONT); + else if (WIFEXITED(status) && !WEXITSTATUS(status)) + break; + else + err(1, "signal test child"); + } while (1); + return; + } + + printf("\tBefore signal, load tile data -- %s", + load_tiledata_at_first ? "yes, " : "no:\n"); + if (load_tiledata_at_first) + printf("re-initialized -- %s:\n", + init_tiledata_state_before_signal ? "yes" : "no"); + + /* + * Raise SIGUSR1 to pre-fill sig stack. Also, load tiledata to size the pre-fill. + */ + + if (load_tiledata_at_first) { + clr_xstatehdr(xsave_buffer); + set_xstatebv(xsave_buffer, XFEATURE_MASK_XTILEDATA); + xrstor(xsave_buffer, -1, -1); + } + + raise(SIGUSR1); + if (!sigused) + err(1, "SIGUSR1"); + + /* + * Raise SIGALRM to test AMX state handling in signal delivery. Set up the state and + * data before the test. + */ + + if (load_tiledata_at_first) { + clr_xstatehdr(xsave_buffer); + set_xstatebv(xsave_buffer, XFEATURE_MASK_XTILEDATA); + set_rand_tiledata(xsave_buffer + xsave_xtiledata_offset); + xrstor(xsave_buffer, -1, -1); + + if (init_tiledata_state_before_signal) { + clr_xstatehdr(xsave_buffer); + set_xstatebv(xsave_buffer, 0); + xrstor(xsave_buffer, -1, -1); + memset(tiledata, 0, xsave_xtiledata_size); + } else { + memcpy(tiledata, xsave_buffer + xsave_xtiledata_offset, + xsave_xtiledata_size); + } + } else { + memset(tiledata, 0, xsave_xtiledata_size); + } + + raise(SIGALRM); + if (!sigalarmed) + err(1, "SIGALRM"); + + printf("\tAt signal return,\n"); + __xsave(xsave_buffer, XFEATURE_MASK_XTILEDATA, 0); + if (memcmp(tiledata, xsave_buffer + xsave_xtiledata_offset, xsave_xtiledata_size)) { + errs++; + printf("[FAIL]\tTiledata is not restored.\n"); + } else { + printf("[OK]\tTiledata is restored.\n"); + } + + if (errs) + nerrs++; + _exit(0); +} + +static void test_signal(void) +{ + printf("[RUN]\tCheck tile data state in signal path:\n"); + + sethandler(SIGALRM, handle_sigalrm, 0); + sethandler(SIGUSR1, handle_sigusr1, 0); + + load_tiledata_at_first = false; + init_tiledata_state_before_signal = false; + errs = 0; + test_signal_handling(); + + load_tiledata_at_first = true; + init_tiledata_state_before_signal = false; + errs = 0; + test_signal_handling(); + + load_tiledata_at_first = true; + init_tiledata_state_before_signal = true; + errs = 0; + test_signal_handling(); + + clearhandler(SIGALRM); + clearhandler(SIGUSR1); +} + +int main(int argc, char **argv) +{ + cpu_set_t cpuset; + + if (argc == 2) { + int ret; + + if (strcmp(argv[1], TEST_EXECV_ARG)) + return 0; + + printf("\tRun after execv().\n"); + + xsave_buffer = aligned_alloc(64, xsave_size); + if (!xsave_buffer) + err(1, "aligned_alloc()"); + clr_xstatehdr(xsave_buffer); + + set_xstatebv(xsave_buffer, XFEATURE_MASK_XTILE); + set_rand_tiledata(xsave_buffer + xsave_xtiledata_offset); + + sethandler(SIGSEGV, handle_sigsegv, 0); + + if (xrstor(xsave_buffer, -1, -1)) { + printf("[FAIL]\tSucceeded after execv().\n"); + ret = 1; + } else { + printf("[OK]\tBlocked after execv().\n"); + ret = 0; + } + + clearhandler(SIGSEGV); + free(xsave_buffer); + _exit(ret); + } + + /* Check hardware availability at first */ + + if (!check_xsave_capability()) { + if (xsave_disabled) + printf("XSAVE disabled.\n"); + else + printf("Tile data not available.\n"); + return 0; + } + + check_cpuid(); + + xsave_buffer = aligned_alloc(64, xsave_size); + if (!xsave_buffer) + err(1, "aligned_alloc()"); + clr_xstatehdr(xsave_buffer); + + tiledata = malloc(xsave_xtiledata_size); + if (!tiledata) + err(1, "malloc()"); + + nerrs = 0; + + sethandler(SIGSEGV, handle_sigsegv, 0); + + CPU_ZERO(&cpuset); + CPU_SET(0, &cpuset); + + if (sched_setaffinity(0, sizeof(cpuset), &cpuset) != 0) + err(1, "sched_setaffinity to CPU 0"); + + test_arch_prctl(argc, argv); + test_ptrace(); + + enable_tiledata(); + test_context_switch(); + test_fork(); + test_signal(); + + clearhandler(SIGSEGV); + + free(xsave_buffer); + free(tiledata); + return nerrs ? 1 : 0; +} -- 2.17.1

4 years, 3 months

1
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[PATCH AUTOSEL 4.4 14/23] selftests/powerpc: Fix "no_handler" EBB selftest

by Sasha Levin

From: Athira Rajeev <atrajeev(a)linux.vnet.ibm.com> [ Upstream commit 45677c9aebe926192e59475b35a1ff35ff2d4217 ] The "no_handler_test" in ebb selftests attempts to read the PMU registers twice via helper function "dump_ebb_state". First dump is just before closing of event and the second invocation is done after closing of the event. The original intention of second dump_ebb_state was to dump the state of registers at the end of the test when the counters are frozen. But this will be achieved with the first call itself since sample period is set to low value and PMU will be frozen by then. Hence patch removes the dump which was done before closing of the event. Reported-by: Shirisha Ganta <shirisha.ganta1(a)ibm.com> Signed-off-by: Athira Rajeev <atrajeev(a)linux.vnet.ibm.com> Tested-by: Nageswara R Sastry <rnsastry(a)linux.ibm.com <mailto:rnsastry@linux.ibm.com>> Signed-off-by: Michael Ellerman <mpe(a)ellerman.id.au> Link: https://lore.kernel.org/r/1621950703-1532-2-git-send-email-atrajeev@linux.v… Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c b/tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c index 8341d7778d5e..87630d44fb4c 100644 --- a/tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c +++ b/tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c @@ -50,8 +50,6 @@ static int no_handler_test(void) event_close(&event); - dump_ebb_state(); - /* The real test is that we never took an EBB at 0x0 */ return 0; -- 2.30.2

4 years, 3 months

1
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[PATCH AUTOSEL 4.9 16/26] selftests/powerpc: Fix "no_handler" EBB selftest

by Sasha Levin

From: Athira Rajeev <atrajeev(a)linux.vnet.ibm.com> [ Upstream commit 45677c9aebe926192e59475b35a1ff35ff2d4217 ] The "no_handler_test" in ebb selftests attempts to read the PMU registers twice via helper function "dump_ebb_state". First dump is just before closing of event and the second invocation is done after closing of the event. The original intention of second dump_ebb_state was to dump the state of registers at the end of the test when the counters are frozen. But this will be achieved with the first call itself since sample period is set to low value and PMU will be frozen by then. Hence patch removes the dump which was done before closing of the event. Reported-by: Shirisha Ganta <shirisha.ganta1(a)ibm.com> Signed-off-by: Athira Rajeev <atrajeev(a)linux.vnet.ibm.com> Tested-by: Nageswara R Sastry <rnsastry(a)linux.ibm.com <mailto:rnsastry@linux.ibm.com>> Signed-off-by: Michael Ellerman <mpe(a)ellerman.id.au> Link: https://lore.kernel.org/r/1621950703-1532-2-git-send-email-atrajeev@linux.v… Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c b/tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c index 8341d7778d5e..87630d44fb4c 100644 --- a/tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c +++ b/tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c @@ -50,8 +50,6 @@ static int no_handler_test(void) event_close(&event); - dump_ebb_state(); - /* The real test is that we never took an EBB at 0x0 */ return 0; -- 2.30.2

4 years, 3 months

1
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[PATCH AUTOSEL 4.14 21/33] selftests/powerpc: Fix "no_handler" EBB selftest

by Sasha Levin

From: Athira Rajeev <atrajeev(a)linux.vnet.ibm.com> [ Upstream commit 45677c9aebe926192e59475b35a1ff35ff2d4217 ] The "no_handler_test" in ebb selftests attempts to read the PMU registers twice via helper function "dump_ebb_state". First dump is just before closing of event and the second invocation is done after closing of the event. The original intention of second dump_ebb_state was to dump the state of registers at the end of the test when the counters are frozen. But this will be achieved with the first call itself since sample period is set to low value and PMU will be frozen by then. Hence patch removes the dump which was done before closing of the event. Reported-by: Shirisha Ganta <shirisha.ganta1(a)ibm.com> Signed-off-by: Athira Rajeev <atrajeev(a)linux.vnet.ibm.com> Tested-by: Nageswara R Sastry <rnsastry(a)linux.ibm.com <mailto:rnsastry@linux.ibm.com>> Signed-off-by: Michael Ellerman <mpe(a)ellerman.id.au> Link: https://lore.kernel.org/r/1621950703-1532-2-git-send-email-atrajeev@linux.v… Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c b/tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c index 8341d7778d5e..87630d44fb4c 100644 --- a/tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c +++ b/tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c @@ -50,8 +50,6 @@ static int no_handler_test(void) event_close(&event); - dump_ebb_state(); - /* The real test is that we never took an EBB at 0x0 */ return 0; -- 2.30.2

4 years, 3 months

1
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[PATCH AUTOSEL 4.19 25/39] selftests/powerpc: Fix "no_handler" EBB selftest

by Sasha Levin

From: Athira Rajeev <atrajeev(a)linux.vnet.ibm.com> [ Upstream commit 45677c9aebe926192e59475b35a1ff35ff2d4217 ] The "no_handler_test" in ebb selftests attempts to read the PMU registers twice via helper function "dump_ebb_state". First dump is just before closing of event and the second invocation is done after closing of the event. The original intention of second dump_ebb_state was to dump the state of registers at the end of the test when the counters are frozen. But this will be achieved with the first call itself since sample period is set to low value and PMU will be frozen by then. Hence patch removes the dump which was done before closing of the event. Reported-by: Shirisha Ganta <shirisha.ganta1(a)ibm.com> Signed-off-by: Athira Rajeev <atrajeev(a)linux.vnet.ibm.com> Tested-by: Nageswara R Sastry <rnsastry(a)linux.ibm.com <mailto:rnsastry@linux.ibm.com>> Signed-off-by: Michael Ellerman <mpe(a)ellerman.id.au> Link: https://lore.kernel.org/r/1621950703-1532-2-git-send-email-atrajeev@linux.v… Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c b/tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c index 8341d7778d5e..87630d44fb4c 100644 --- a/tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c +++ b/tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c @@ -50,8 +50,6 @@ static int no_handler_test(void) event_close(&event); - dump_ebb_state(); - /* The real test is that we never took an EBB at 0x0 */ return 0; -- 2.30.2

4 years, 3 months

1
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[PATCH AUTOSEL 4.19 19/39] selftests: timers: rtcpie: skip test if default RTC device does not exist

by Sasha Levin

From: Po-Hsu Lin <po-hsu.lin(a)canonical.com> [ Upstream commit 0d3e5a057992bdc66e4dca2ca50b77fa4a7bd90e ] This test will require /dev/rtc0, the default RTC device, or one specified by user to run. Since this default RTC is not guaranteed to exist on all of the devices, so check its existence first, otherwise skip this test with the kselftest skip code 4. Without this patch this test will fail like this on a s390x zVM: $ selftests: timers: rtcpie $ /dev/rtc0: No such file or directory not ok 1 selftests: timers: rtcpie # exit=22 With this patch: $ selftests: timers: rtcpie $ Default RTC /dev/rtc0 does not exist. Test Skipped! not ok 9 selftests: timers: rtcpie # SKIP Fixed up change log so "With this patch" text doesn't get dropped. Shuah Khan <skhan(a)linuxfoundation.org> Signed-off-by: Po-Hsu Lin <po-hsu.lin(a)canonical.com> Signed-off-by: Shuah Khan <skhan(a)linuxfoundation.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/timers/rtcpie.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/timers/rtcpie.c b/tools/testing/selftests/timers/rtcpie.c index 47b5bad1b393..4ef2184f1558 100644 --- a/tools/testing/selftests/timers/rtcpie.c +++ b/tools/testing/selftests/timers/rtcpie.c @@ -18,6 +18,8 @@ #include <stdlib.h> #include <errno.h> +#include "../kselftest.h" + /* * This expects the new RTC class driver framework, working with * clocks that will often not be clones of what the PC-AT had. @@ -35,8 +37,14 @@ int main(int argc, char **argv) switch (argc) { case 2: rtc = argv[1]; - /* FALLTHROUGH */ + break; case 1: + fd = open(default_rtc, O_RDONLY); + if (fd == -1) { + printf("Default RTC %s does not exist. Test Skipped!\n", default_rtc); + exit(KSFT_SKIP); + } + close(fd); break; default: fprintf(stderr, "usage: rtctest [rtcdev] [d]\n"); -- 2.30.2

4 years, 3 months

1
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[PATCH AUTOSEL 5.4 40/63] selftests/powerpc: Fix "no_handler" EBB selftest

by Sasha Levin

From: Athira Rajeev <atrajeev(a)linux.vnet.ibm.com> [ Upstream commit 45677c9aebe926192e59475b35a1ff35ff2d4217 ] The "no_handler_test" in ebb selftests attempts to read the PMU registers twice via helper function "dump_ebb_state". First dump is just before closing of event and the second invocation is done after closing of the event. The original intention of second dump_ebb_state was to dump the state of registers at the end of the test when the counters are frozen. But this will be achieved with the first call itself since sample period is set to low value and PMU will be frozen by then. Hence patch removes the dump which was done before closing of the event. Reported-by: Shirisha Ganta <shirisha.ganta1(a)ibm.com> Signed-off-by: Athira Rajeev <atrajeev(a)linux.vnet.ibm.com> Tested-by: Nageswara R Sastry <rnsastry(a)linux.ibm.com <mailto:rnsastry@linux.ibm.com>> Signed-off-by: Michael Ellerman <mpe(a)ellerman.id.au> Link: https://lore.kernel.org/r/1621950703-1532-2-git-send-email-atrajeev@linux.v… Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c b/tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c index fc5bf4870d8e..01e827c31169 100644 --- a/tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c +++ b/tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c @@ -50,8 +50,6 @@ static int no_handler_test(void) event_close(&event); - dump_ebb_state(); - /* The real test is that we never took an EBB at 0x0 */ return 0; -- 2.30.2

4 years, 3 months

1
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[PATCH AUTOSEL 5.4 32/63] selftests: timers: rtcpie: skip test if default RTC device does not exist

by Sasha Levin

From: Po-Hsu Lin <po-hsu.lin(a)canonical.com> [ Upstream commit 0d3e5a057992bdc66e4dca2ca50b77fa4a7bd90e ] This test will require /dev/rtc0, the default RTC device, or one specified by user to run. Since this default RTC is not guaranteed to exist on all of the devices, so check its existence first, otherwise skip this test with the kselftest skip code 4. Without this patch this test will fail like this on a s390x zVM: $ selftests: timers: rtcpie $ /dev/rtc0: No such file or directory not ok 1 selftests: timers: rtcpie # exit=22 With this patch: $ selftests: timers: rtcpie $ Default RTC /dev/rtc0 does not exist. Test Skipped! not ok 9 selftests: timers: rtcpie # SKIP Fixed up change log so "With this patch" text doesn't get dropped. Shuah Khan <skhan(a)linuxfoundation.org> Signed-off-by: Po-Hsu Lin <po-hsu.lin(a)canonical.com> Signed-off-by: Shuah Khan <skhan(a)linuxfoundation.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/timers/rtcpie.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/timers/rtcpie.c b/tools/testing/selftests/timers/rtcpie.c index 47b5bad1b393..4ef2184f1558 100644 --- a/tools/testing/selftests/timers/rtcpie.c +++ b/tools/testing/selftests/timers/rtcpie.c @@ -18,6 +18,8 @@ #include <stdlib.h> #include <errno.h> +#include "../kselftest.h" + /* * This expects the new RTC class driver framework, working with * clocks that will often not be clones of what the PC-AT had. @@ -35,8 +37,14 @@ int main(int argc, char **argv) switch (argc) { case 2: rtc = argv[1]; - /* FALLTHROUGH */ + break; case 1: + fd = open(default_rtc, O_RDONLY); + if (fd == -1) { + printf("Default RTC %s does not exist. Test Skipped!\n", default_rtc); + exit(KSFT_SKIP); + } + close(fd); break; default: fprintf(stderr, "usage: rtctest [rtcdev] [d]\n"); -- 2.30.2

4 years, 3 months

1
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[PATCH AUTOSEL 5.10 63/93] selftests/powerpc: Fix "no_handler" EBB selftest

by Sasha Levin

From: Athira Rajeev <atrajeev(a)linux.vnet.ibm.com> [ Upstream commit 45677c9aebe926192e59475b35a1ff35ff2d4217 ] The "no_handler_test" in ebb selftests attempts to read the PMU registers twice via helper function "dump_ebb_state". First dump is just before closing of event and the second invocation is done after closing of the event. The original intention of second dump_ebb_state was to dump the state of registers at the end of the test when the counters are frozen. But this will be achieved with the first call itself since sample period is set to low value and PMU will be frozen by then. Hence patch removes the dump which was done before closing of the event. Reported-by: Shirisha Ganta <shirisha.ganta1(a)ibm.com> Signed-off-by: Athira Rajeev <atrajeev(a)linux.vnet.ibm.com> Tested-by: Nageswara R Sastry <rnsastry(a)linux.ibm.com <mailto:rnsastry@linux.ibm.com>> Signed-off-by: Michael Ellerman <mpe(a)ellerman.id.au> Link: https://lore.kernel.org/r/1621950703-1532-2-git-send-email-atrajeev@linux.v… Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c b/tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c index fc5bf4870d8e..01e827c31169 100644 --- a/tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c +++ b/tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c @@ -50,8 +50,6 @@ static int no_handler_test(void) event_close(&event); - dump_ebb_state(); - /* The real test is that we never took an EBB at 0x0 */ return 0; -- 2.30.2

4 years, 3 months

1
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[PATCH AUTOSEL 5.10 52/93] selftests: timers: rtcpie: skip test if default RTC device does not exist

by Sasha Levin

From: Po-Hsu Lin <po-hsu.lin(a)canonical.com> [ Upstream commit 0d3e5a057992bdc66e4dca2ca50b77fa4a7bd90e ] This test will require /dev/rtc0, the default RTC device, or one specified by user to run. Since this default RTC is not guaranteed to exist on all of the devices, so check its existence first, otherwise skip this test with the kselftest skip code 4. Without this patch this test will fail like this on a s390x zVM: $ selftests: timers: rtcpie $ /dev/rtc0: No such file or directory not ok 1 selftests: timers: rtcpie # exit=22 With this patch: $ selftests: timers: rtcpie $ Default RTC /dev/rtc0 does not exist. Test Skipped! not ok 9 selftests: timers: rtcpie # SKIP Fixed up change log so "With this patch" text doesn't get dropped. Shuah Khan <skhan(a)linuxfoundation.org> Signed-off-by: Po-Hsu Lin <po-hsu.lin(a)canonical.com> Signed-off-by: Shuah Khan <skhan(a)linuxfoundation.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/timers/rtcpie.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/timers/rtcpie.c b/tools/testing/selftests/timers/rtcpie.c index 47b5bad1b393..4ef2184f1558 100644 --- a/tools/testing/selftests/timers/rtcpie.c +++ b/tools/testing/selftests/timers/rtcpie.c @@ -18,6 +18,8 @@ #include <stdlib.h> #include <errno.h> +#include "../kselftest.h" + /* * This expects the new RTC class driver framework, working with * clocks that will often not be clones of what the PC-AT had. @@ -35,8 +37,14 @@ int main(int argc, char **argv) switch (argc) { case 2: rtc = argv[1]; - /* FALLTHROUGH */ + break; case 1: + fd = open(default_rtc, O_RDONLY); + if (fd == -1) { + printf("Default RTC %s does not exist. Test Skipped!\n", default_rtc); + exit(KSFT_SKIP); + } + close(fd); break; default: fprintf(stderr, "usage: rtctest [rtcdev] [d]\n"); -- 2.30.2

4 years, 3 months

1
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[PATCH AUTOSEL 5.12 068/104] selftests/powerpc: Fix "no_handler" EBB selftest

by Sasha Levin

From: Athira Rajeev <atrajeev(a)linux.vnet.ibm.com> [ Upstream commit 45677c9aebe926192e59475b35a1ff35ff2d4217 ] The "no_handler_test" in ebb selftests attempts to read the PMU registers twice via helper function "dump_ebb_state". First dump is just before closing of event and the second invocation is done after closing of the event. The original intention of second dump_ebb_state was to dump the state of registers at the end of the test when the counters are frozen. But this will be achieved with the first call itself since sample period is set to low value and PMU will be frozen by then. Hence patch removes the dump which was done before closing of the event. Reported-by: Shirisha Ganta <shirisha.ganta1(a)ibm.com> Signed-off-by: Athira Rajeev <atrajeev(a)linux.vnet.ibm.com> Tested-by: Nageswara R Sastry <rnsastry(a)linux.ibm.com <mailto:rnsastry@linux.ibm.com>> Signed-off-by: Michael Ellerman <mpe(a)ellerman.id.au> Link: https://lore.kernel.org/r/1621950703-1532-2-git-send-email-atrajeev@linux.v… Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c b/tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c index fc5bf4870d8e..01e827c31169 100644 --- a/tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c +++ b/tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c @@ -50,8 +50,6 @@ static int no_handler_test(void) event_close(&event); - dump_ebb_state(); - /* The real test is that we never took an EBB at 0x0 */ return 0; -- 2.30.2

4 years, 3 months

1
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[PATCH AUTOSEL 5.12 055/104] selftests: timers: rtcpie: skip test if default RTC device does not exist

by Sasha Levin

From: Po-Hsu Lin <po-hsu.lin(a)canonical.com> [ Upstream commit 0d3e5a057992bdc66e4dca2ca50b77fa4a7bd90e ] This test will require /dev/rtc0, the default RTC device, or one specified by user to run. Since this default RTC is not guaranteed to exist on all of the devices, so check its existence first, otherwise skip this test with the kselftest skip code 4. Without this patch this test will fail like this on a s390x zVM: $ selftests: timers: rtcpie $ /dev/rtc0: No such file or directory not ok 1 selftests: timers: rtcpie # exit=22 With this patch: $ selftests: timers: rtcpie $ Default RTC /dev/rtc0 does not exist. Test Skipped! not ok 9 selftests: timers: rtcpie # SKIP Fixed up change log so "With this patch" text doesn't get dropped. Shuah Khan <skhan(a)linuxfoundation.org> Signed-off-by: Po-Hsu Lin <po-hsu.lin(a)canonical.com> Signed-off-by: Shuah Khan <skhan(a)linuxfoundation.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/timers/rtcpie.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/timers/rtcpie.c b/tools/testing/selftests/timers/rtcpie.c index 47b5bad1b393..4ef2184f1558 100644 --- a/tools/testing/selftests/timers/rtcpie.c +++ b/tools/testing/selftests/timers/rtcpie.c @@ -18,6 +18,8 @@ #include <stdlib.h> #include <errno.h> +#include "../kselftest.h" + /* * This expects the new RTC class driver framework, working with * clocks that will often not be clones of what the PC-AT had. @@ -35,8 +37,14 @@ int main(int argc, char **argv) switch (argc) { case 2: rtc = argv[1]; - /* FALLTHROUGH */ + break; case 1: + fd = open(default_rtc, O_RDONLY); + if (fd == -1) { + printf("Default RTC %s does not exist. Test Skipped!\n", default_rtc); + exit(KSFT_SKIP); + } + close(fd); break; default: fprintf(stderr, "usage: rtctest [rtcdev] [d]\n"); -- 2.30.2

4 years, 3 months

1
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[PATCH AUTOSEL 5.13 060/114] selftests: timers: rtcpie: skip test if default RTC device does not exist

by Sasha Levin

From: Po-Hsu Lin <po-hsu.lin(a)canonical.com> [ Upstream commit 0d3e5a057992bdc66e4dca2ca50b77fa4a7bd90e ] This test will require /dev/rtc0, the default RTC device, or one specified by user to run. Since this default RTC is not guaranteed to exist on all of the devices, so check its existence first, otherwise skip this test with the kselftest skip code 4. Without this patch this test will fail like this on a s390x zVM: $ selftests: timers: rtcpie $ /dev/rtc0: No such file or directory not ok 1 selftests: timers: rtcpie # exit=22 With this patch: $ selftests: timers: rtcpie $ Default RTC /dev/rtc0 does not exist. Test Skipped! not ok 9 selftests: timers: rtcpie # SKIP Fixed up change log so "With this patch" text doesn't get dropped. Shuah Khan <skhan(a)linuxfoundation.org> Signed-off-by: Po-Hsu Lin <po-hsu.lin(a)canonical.com> Signed-off-by: Shuah Khan <skhan(a)linuxfoundation.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/timers/rtcpie.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/timers/rtcpie.c b/tools/testing/selftests/timers/rtcpie.c index 47b5bad1b393..4ef2184f1558 100644 --- a/tools/testing/selftests/timers/rtcpie.c +++ b/tools/testing/selftests/timers/rtcpie.c @@ -18,6 +18,8 @@ #include <stdlib.h> #include <errno.h> +#include "../kselftest.h" + /* * This expects the new RTC class driver framework, working with * clocks that will often not be clones of what the PC-AT had. @@ -35,8 +37,14 @@ int main(int argc, char **argv) switch (argc) { case 2: rtc = argv[1]; - /* FALLTHROUGH */ + break; case 1: + fd = open(default_rtc, O_RDONLY); + if (fd == -1) { + printf("Default RTC %s does not exist. Test Skipped!\n", default_rtc); + exit(KSFT_SKIP); + } + close(fd); break; default: fprintf(stderr, "usage: rtctest [rtcdev] [d]\n"); -- 2.30.2

4 years, 3 months

1
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[PATCHv2] selftests: Use kselftest skip code for skipped tests

by Po-Hsu Lin

There are several test cases still using exit 0 when they need to be skipped. Use kselftest framework skip code instead so it can help us to distinguish the proper return status. Criterion to filter out what should be fixed in selftests directory: grep -r "exit 0" -B1 | grep -i skip This change might cause some false-positives if people are running these test scripts directly and only checking their return codes, which will change from 0 to 4. However I think the impact should be small as most of our scripts here are already using this skip code. And there will be no such issue if running them with the kselftest framework. V2: router_mpath_nh.sh and outer_mpath_nh_res.sh sources lib.sh, there is no need to assign ksft_skip value in these two. Signed-off-by: Po-Hsu Lin <po-hsu.lin(a)canonical.com> --- tools/testing/selftests/bpf/test_bpftool_build.sh | 5 ++++- tools/testing/selftests/bpf/test_xdp_meta.sh | 5 ++++- tools/testing/selftests/bpf/test_xdp_vlan.sh | 7 +++++-- tools/testing/selftests/net/fcnal-test.sh | 5 ++++- tools/testing/selftests/net/fib_rule_tests.sh | 7 +++++-- tools/testing/selftests/net/forwarding/lib.sh | 5 ++++- tools/testing/selftests/net/forwarding/router_mpath_nh.sh | 2 +- tools/testing/selftests/net/forwarding/router_mpath_nh_res.sh | 2 +- tools/testing/selftests/net/run_afpackettests | 5 ++++- tools/testing/selftests/net/srv6_end_dt4_l3vpn_test.sh | 9 ++++++--- tools/testing/selftests/net/srv6_end_dt6_l3vpn_test.sh | 9 ++++++--- tools/testing/selftests/net/unicast_extensions.sh | 5 ++++- tools/testing/selftests/net/vrf_strict_mode_test.sh | 9 ++++++--- tools/testing/selftests/ptp/phc.sh | 7 +++++-- tools/testing/selftests/vm/charge_reserved_hugetlb.sh | 5 ++++- tools/testing/selftests/vm/hugetlb_reparenting_test.sh | 5 ++++- 16 files changed, 67 insertions(+), 25 deletions(-) diff --git a/tools/testing/selftests/bpf/test_bpftool_build.sh b/tools/testing/selftests/bpf/test_bpftool_build.sh index ac349a5..b6fab1e 100755 --- a/tools/testing/selftests/bpf/test_bpftool_build.sh +++ b/tools/testing/selftests/bpf/test_bpftool_build.sh @@ -1,6 +1,9 @@ #!/bin/bash # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +# Kselftest framework requirement - SKIP code is 4. +ksft_skip=4 + case $1 in -h|--help) echo -e "$0 [-j <n>]" @@ -22,7 +25,7 @@ KDIR_ROOT_DIR=$(realpath $PWD/$SCRIPT_REL_DIR/../../../../) cd $KDIR_ROOT_DIR if [ ! -e tools/bpf/bpftool/Makefile ]; then echo -e "skip: bpftool files not found!\n" - exit 0 + exit $ksft_skip fi ERROR=0 diff --git a/tools/testing/selftests/bpf/test_xdp_meta.sh b/tools/testing/selftests/bpf/test_xdp_meta.sh index 637fcf4..fd3f218 100755 --- a/tools/testing/selftests/bpf/test_xdp_meta.sh +++ b/tools/testing/selftests/bpf/test_xdp_meta.sh @@ -1,5 +1,8 @@ #!/bin/sh +# Kselftest framework requirement - SKIP code is 4. +ksft_skip=4 + cleanup() { if [ "$?" = "0" ]; then @@ -17,7 +20,7 @@ cleanup() ip link set dev lo xdp off 2>/dev/null > /dev/null if [ $? -ne 0 ];then echo "selftests: [SKIP] Could not run test without the ip xdp support" - exit 0 + exit $ksft_skip fi set -e diff --git a/tools/testing/selftests/bpf/test_xdp_vlan.sh b/tools/testing/selftests/bpf/test_xdp_vlan.sh index bb8b0da..1aa7404 100755 --- a/tools/testing/selftests/bpf/test_xdp_vlan.sh +++ b/tools/testing/selftests/bpf/test_xdp_vlan.sh @@ -2,6 +2,9 @@ # SPDX-License-Identifier: GPL-2.0 # Author: Jesper Dangaard Brouer <hawk(a)kernel.org> +# Kselftest framework requirement - SKIP code is 4. +ksft_skip=4 + # Allow wrapper scripts to name test if [ -z "$TESTNAME" ]; then TESTNAME=xdp_vlan @@ -94,7 +97,7 @@ while true; do -h | --help ) usage; echo "selftests: $TESTNAME [SKIP] usage help info requested" - exit 0 + exit $ksft_skip ;; * ) shift @@ -117,7 +120,7 @@ fi ip link set dev lo xdpgeneric off 2>/dev/null > /dev/null if [ $? -ne 0 ]; then echo "selftests: $TESTNAME [SKIP] need ip xdp support" - exit 0 + exit $ksft_skip fi # Interactive mode likely require us to cleanup netns diff --git a/tools/testing/selftests/net/fcnal-test.sh b/tools/testing/selftests/net/fcnal-test.sh index a8ad928..9074e25 100755 --- a/tools/testing/selftests/net/fcnal-test.sh +++ b/tools/testing/selftests/net/fcnal-test.sh @@ -37,6 +37,9 @@ # # server / client nomenclature relative to ns-A +# Kselftest framework requirement - SKIP code is 4. +ksft_skip=4 + VERBOSE=0 NSA_DEV=eth1 @@ -3946,7 +3949,7 @@ fi which nettest >/dev/null if [ $? -ne 0 ]; then echo "'nettest' command not found; skipping tests" - exit 0 + exit $ksft_skip fi declare -i nfail=0 diff --git a/tools/testing/selftests/net/fib_rule_tests.sh b/tools/testing/selftests/net/fib_rule_tests.sh index a93e6b6..43ea840 100755 --- a/tools/testing/selftests/net/fib_rule_tests.sh +++ b/tools/testing/selftests/net/fib_rule_tests.sh @@ -3,6 +3,9 @@ # This test is for checking IPv4 and IPv6 FIB rules API +# Kselftest framework requirement - SKIP code is 4. +ksft_skip=4 + ret=0 PAUSE_ON_FAIL=${PAUSE_ON_FAIL:=no} @@ -238,12 +241,12 @@ run_fibrule_tests() if [ "$(id -u)" -ne 0 ];then echo "SKIP: Need root privileges" - exit 0 + exit $ksft_skip fi if [ ! -x "$(command -v ip)" ]; then echo "SKIP: Could not run test without ip tool" - exit 0 + exit $ksft_skip fi # start clean diff --git a/tools/testing/selftests/net/forwarding/lib.sh b/tools/testing/selftests/net/forwarding/lib.sh index 42e28c9..eed9f08 100644 --- a/tools/testing/selftests/net/forwarding/lib.sh +++ b/tools/testing/selftests/net/forwarding/lib.sh @@ -4,6 +4,9 @@ ############################################################################## # Defines +# Kselftest framework requirement - SKIP code is 4. +ksft_skip=4 + # Can be overridden by the configuration file. PING=${PING:=ping} PING6=${PING6:=ping6} @@ -121,7 +124,7 @@ check_ethtool_lanes_support() if [[ "$(id -u)" -ne 0 ]]; then echo "SKIP: need root privileges" - exit 0 + exit $ksft_skip fi if [[ "$CHECK_TC" = "yes" ]]; then diff --git a/tools/testing/selftests/net/forwarding/router_mpath_nh.sh b/tools/testing/selftests/net/forwarding/router_mpath_nh.sh index 76efb1f..a0d612e 100755 --- a/tools/testing/selftests/net/forwarding/router_mpath_nh.sh +++ b/tools/testing/selftests/net/forwarding/router_mpath_nh.sh @@ -411,7 +411,7 @@ ping_ipv6() ip nexthop ls >/dev/null 2>&1 if [ $? -ne 0 ]; then echo "Nexthop objects not supported; skipping tests" - exit 0 + exit $ksft_skip fi trap cleanup EXIT diff --git a/tools/testing/selftests/net/forwarding/router_mpath_nh_res.sh b/tools/testing/selftests/net/forwarding/router_mpath_nh_res.sh index 4898dd4..cb08ffe 100755 --- a/tools/testing/selftests/net/forwarding/router_mpath_nh_res.sh +++ b/tools/testing/selftests/net/forwarding/router_mpath_nh_res.sh @@ -386,7 +386,7 @@ ping_ipv6() ip nexthop ls >/dev/null 2>&1 if [ $? -ne 0 ]; then echo "Nexthop objects not supported; skipping tests" - exit 0 + exit $ksft_skip fi trap cleanup EXIT diff --git a/tools/testing/selftests/net/run_afpackettests b/tools/testing/selftests/net/run_afpackettests index 8b42e8b..a59cb6a 100755 --- a/tools/testing/selftests/net/run_afpackettests +++ b/tools/testing/selftests/net/run_afpackettests @@ -1,9 +1,12 @@ #!/bin/sh # SPDX-License-Identifier: GPL-2.0 +# Kselftest framework requirement - SKIP code is 4. +ksft_skip=4 + if [ $(id -u) != 0 ]; then echo $msg must be run as root >&2 - exit 0 + exit $ksft_skip fi ret=0 diff --git a/tools/testing/selftests/net/srv6_end_dt4_l3vpn_test.sh b/tools/testing/selftests/net/srv6_end_dt4_l3vpn_test.sh index ad7a9fc..1003119 100755 --- a/tools/testing/selftests/net/srv6_end_dt4_l3vpn_test.sh +++ b/tools/testing/selftests/net/srv6_end_dt4_l3vpn_test.sh @@ -163,6 +163,9 @@ # +---------------------------------------------------+ # +# Kselftest framework requirement - SKIP code is 4. +ksft_skip=4 + readonly LOCALSID_TABLE_ID=90 readonly IPv6_RT_NETWORK=fd00 readonly IPv4_HS_NETWORK=10.0.0 @@ -464,18 +467,18 @@ host_vpn_isolation_tests() if [ "$(id -u)" -ne 0 ];then echo "SKIP: Need root privileges" - exit 0 + exit $ksft_skip fi if [ ! -x "$(command -v ip)" ]; then echo "SKIP: Could not run test without ip tool" - exit 0 + exit $ksft_skip fi modprobe vrf &>/dev/null if [ ! -e /proc/sys/net/vrf/strict_mode ]; then echo "SKIP: vrf sysctl does not exist" - exit 0 + exit $ksft_skip fi cleanup &>/dev/null diff --git a/tools/testing/selftests/net/srv6_end_dt6_l3vpn_test.sh b/tools/testing/selftests/net/srv6_end_dt6_l3vpn_test.sh index 68708f5..b9b06ef 100755 --- a/tools/testing/selftests/net/srv6_end_dt6_l3vpn_test.sh +++ b/tools/testing/selftests/net/srv6_end_dt6_l3vpn_test.sh @@ -164,6 +164,9 @@ # +---------------------------------------------------+ # +# Kselftest framework requirement - SKIP code is 4. +ksft_skip=4 + readonly LOCALSID_TABLE_ID=90 readonly IPv6_RT_NETWORK=fd00 readonly IPv6_HS_NETWORK=cafe @@ -472,18 +475,18 @@ host_vpn_isolation_tests() if [ "$(id -u)" -ne 0 ];then echo "SKIP: Need root privileges" - exit 0 + exit $ksft_skip fi if [ ! -x "$(command -v ip)" ]; then echo "SKIP: Could not run test without ip tool" - exit 0 + exit $ksft_skip fi modprobe vrf &>/dev/null if [ ! -e /proc/sys/net/vrf/strict_mode ]; then echo "SKIP: vrf sysctl does not exist" - exit 0 + exit $ksft_skip fi cleanup &>/dev/null diff --git a/tools/testing/selftests/net/unicast_extensions.sh b/tools/testing/selftests/net/unicast_extensions.sh index dbf0421..728e4d5 100755 --- a/tools/testing/selftests/net/unicast_extensions.sh +++ b/tools/testing/selftests/net/unicast_extensions.sh @@ -28,12 +28,15 @@ # These tests provide an easy way to flip the expected result of any # of these behaviors for testing kernel patches that change them. +# Kselftest framework requirement - SKIP code is 4. +ksft_skip=4 + # nettest can be run from PATH or from same directory as this selftest if ! which nettest >/dev/null; then PATH=$PWD:$PATH if ! which nettest >/dev/null; then echo "'nettest' command not found; skipping tests" - exit 0 + exit $ksft_skip fi fi diff --git a/tools/testing/selftests/net/vrf_strict_mode_test.sh b/tools/testing/selftests/net/vrf_strict_mode_test.sh index 18b982d..865d53c 100755 --- a/tools/testing/selftests/net/vrf_strict_mode_test.sh +++ b/tools/testing/selftests/net/vrf_strict_mode_test.sh @@ -3,6 +3,9 @@ # This test is designed for testing the new VRF strict_mode functionality. +# Kselftest framework requirement - SKIP code is 4. +ksft_skip=4 + ret=0 # identifies the "init" network namespace which is often called root network @@ -371,18 +374,18 @@ vrf_strict_mode_check_support() if [ "$(id -u)" -ne 0 ];then echo "SKIP: Need root privileges" - exit 0 + exit $ksft_skip fi if [ ! -x "$(command -v ip)" ]; then echo "SKIP: Could not run test without ip tool" - exit 0 + exit $ksft_skip fi modprobe vrf &>/dev/null if [ ! -e /proc/sys/net/vrf/strict_mode ]; then echo "SKIP: vrf sysctl does not exist" - exit 0 + exit $ksft_skip fi cleanup &> /dev/null diff --git a/tools/testing/selftests/ptp/phc.sh b/tools/testing/selftests/ptp/phc.sh index ac6e5a6..ca3c844c 100755 --- a/tools/testing/selftests/ptp/phc.sh +++ b/tools/testing/selftests/ptp/phc.sh @@ -1,6 +1,9 @@ #!/bin/bash # SPDX-License-Identifier: GPL-2.0 +# Kselftest framework requirement - SKIP code is 4. +ksft_skip=4 + ALL_TESTS=" settime adjtime @@ -13,12 +16,12 @@ DEV=$1 if [[ "$(id -u)" -ne 0 ]]; then echo "SKIP: need root privileges" - exit 0 + exit $ksft_skip fi if [[ "$DEV" == "" ]]; then echo "SKIP: PTP device not provided" - exit 0 + exit $ksft_skip fi require_command() diff --git a/tools/testing/selftests/vm/charge_reserved_hugetlb.sh b/tools/testing/selftests/vm/charge_reserved_hugetlb.sh index 18d3368..fe8fcfb 100644 --- a/tools/testing/selftests/vm/charge_reserved_hugetlb.sh +++ b/tools/testing/selftests/vm/charge_reserved_hugetlb.sh @@ -1,11 +1,14 @@ #!/bin/sh # SPDX-License-Identifier: GPL-2.0 +# Kselftest framework requirement - SKIP code is 4. +ksft_skip=4 + set -e if [[ $(id -u) -ne 0 ]]; then echo "This test must be run as root. Skipping..." - exit 0 + exit $ksft_skip fi fault_limit_file=limit_in_bytes diff --git a/tools/testing/selftests/vm/hugetlb_reparenting_test.sh b/tools/testing/selftests/vm/hugetlb_reparenting_test.sh index d11d1fe..4a9a3af 100644 --- a/tools/testing/selftests/vm/hugetlb_reparenting_test.sh +++ b/tools/testing/selftests/vm/hugetlb_reparenting_test.sh @@ -1,11 +1,14 @@ #!/bin/bash # SPDX-License-Identifier: GPL-2.0 +# Kselftest framework requirement - SKIP code is 4. +ksft_skip=4 + set -e if [[ $(id -u) -ne 0 ]]; then echo "This test must be run as root. Skipping..." - exit 0 + exit $ksft_skip fi usage_file=usage_in_bytes -- 2.7.4

4 years, 3 months

3
3
0 0

[PATCH] selftests: memory-hotplug: avoid spamming logs with dump_page(), ratio limit hot-remove error test

by Paolo Pisati

While the offline memory test obey ratio limit, the same test with error injection does not and tries to offline all the hotpluggable memory, spamming system logs with hundreds of thousands of dump_page() entries, slowing system down (to the point the test itself timeout and gets terminated) and excessive fs occupation: ... [ 9784.393354] page:c00c0000007d1b40 refcount:3 mapcount:0 mapping:c0000001fc03e950 index:0xe7b [ 9784.393355] def_blk_aops [ 9784.393356] flags: 0x3ffff800002062(referenced|active|workingset|private) [ 9784.393358] raw: 003ffff800002062 c0000001b9343a68 c0000001b9343a68 c0000001fc03e950 [ 9784.393359] raw: 0000000000000e7b c000000006607b18 00000003ffffffff c00000000490d000 [ 9784.393359] page dumped because: migration failure [ 9784.393360] page->mem_cgroup:c00000000490d000 [ 9784.393416] migrating pfn 1f46d failed ret:1 ... $ grep "page dumped because: migration failure" /var/log/kern.log | wc -l 2405558 $ ls -la /var/log/kern.log -rw-r----- 1 syslog adm 2256109539 Jun 30 14:19 /var/log/kern.log Signed-off-by: Paolo Pisati <paolo.pisati(a)canonical.com> --- tools/testing/selftests/memory-hotplug/mem-on-off-test.sh | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/memory-hotplug/mem-on-off-test.sh b/tools/testing/selftests/memory-hotplug/mem-on-off-test.sh index b37585e6aa38..46a97f318f58 100755 --- a/tools/testing/selftests/memory-hotplug/mem-on-off-test.sh +++ b/tools/testing/selftests/memory-hotplug/mem-on-off-test.sh @@ -282,7 +282,9 @@ done # echo $error > $NOTIFIER_ERR_INJECT_DIR/actions/MEM_GOING_OFFLINE/error for memory in `hotpluggable_online_memory`; do - offline_memory_expect_fail $memory + if [ $((RANDOM % 100)) -lt $ratio ]; then + offline_memory_expect_fail $memory + fi done echo 0 > $NOTIFIER_ERR_INJECT_DIR/actions/MEM_GOING_OFFLINE/error -- 2.30.2

4 years, 3 months

3
3
0 0

[PATCH 0/4] selftests/sgx: Trigger the page reclaimer and #PF handler

by Jarkko Sakkinen

Create a heap for the test enclave, which has the same size as all available Enclave Page Cache (EPC) pages in the system. This will guarantee that all test_encl.elf pages *and* SGX Enclave Control Structure (SECS) have been swapped out by the page reclaimer during the load time. Actually, this adds a bit more stress than that since part of the EPC gets reserved for the Version Array (VA) pages. For each test, the page fault handler gets triggered in two occasions: - When SGX_IOC_ENCLAVE_INIT is performed, SECS gets swapped in by the page fault handler. - During the execution, each page that is referenced gets swapped in by the page fault handler. Jarkko Sakkinen (3): x86/sgx: Add sgx_nr_all_pages to the debugfs selftests/sgx: Assign source for each segment selftests/sgx: Trigger the reclaimer and #PF handler Tianjia Zhang (1): selftests/sgx: Fix Q1 and Q2 calculation in sigstruct.c Documentation/x86/sgx.rst | 9 +++++ arch/x86/kernel/cpu/sgx/main.c | 10 ++++- tools/testing/selftests/sgx/load.c | 38 ++++++++++++++---- tools/testing/selftests/sgx/main.c | 42 +++++++++++++++++++- tools/testing/selftests/sgx/main.h | 4 +- tools/testing/selftests/sgx/sigstruct.c | 53 +++++++++++++------------ 6 files changed, 120 insertions(+), 36 deletions(-) -- 2.32.0

4 years, 3 months

4
19
0 0

[PATCH net-next 0/4] selftests: forwarding: Tests redirects between L3 and L2 devices

by Guillaume Nault

Following merge commit 8eb517a2a4ae ("Merge branch 'reset-mac'"), which made several L3 tunnels reset the skb's mac header pointer after decap, here's a selftest that validates this new behaviour. Patch 1 adds a reusable script for setting up the base network and tests ipip and gre tunnels. The following patches extend the selftest to cover more tunnel types (sit, ip6gre, ip6tnl, vxlan-gpe and bareudp). Guillaume Nault (4): selftests: forwarding: Test redirecting gre or ipip packets to Ethernet selftests: forwarding: Test redirecting sit packets to Ethernet selftests: forwarding: Test redirecting ip6gre and ip6tnl packets to Ethernet selftests: forwarding: Test redirecting vxlan and bareudp packets to Ethernet .../testing/selftests/net/forwarding/Makefile | 1 + tools/testing/selftests/net/forwarding/config | 7 + .../net/forwarding/tc_redirect_l2l3.sh | 438 ++++++++++++++++++ .../net/forwarding/topo_nschain_lib.sh | 267 +++++++++++ 4 files changed, 713 insertions(+) create mode 100755 tools/testing/selftests/net/forwarding/tc_redirect_l2l3.sh create mode 100644 tools/testing/selftests/net/forwarding/topo_nschain_lib.sh -- 2.21.3

4 years, 3 months

3
13
0 0

[PATCH 0/2] LICENSES: add and use copyleft-next-0.3.1

by Luis Chamberlain

This adds the copyleft-next-0.3.1 SPDX tag and replaces existing boilerplate with the tag. Luis Chamberlain (2): LICENSES: Add the copyleft-next-0.3.1 license testing: use the copyleft-next-0.3.1 SPDX tag LICENSES/dual/copyleft-next-0.3.1 | 237 +++++++++++++++++++++++ lib/test_kmod.c | 12 +- lib/test_sysctl.c | 12 +- tools/testing/selftests/kmod/kmod.sh | 13 +- tools/testing/selftests/sysctl/sysctl.sh | 12 +- 5 files changed, 241 insertions(+), 45 deletions(-) create mode 100644 LICENSES/dual/copyleft-next-0.3.1 -- 2.27.0

4 years, 3 months

7
14
0 0

[PATCH] selftests: firmware: Fix ingonred return val of asprintf() warn

by Shuah Khan

Fix the following ingonred return val of asprintf() warn during build: cc -Wall -O2 fw_namespace.c -o ../tools/testing/selftests/firmware/fw_namespace fw_namespace.c: In function ‘main’: fw_namespace.c:132:2: warning: ignoring return value of ‘asprintf’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 132 | asprintf(&fw_path, "/lib/firmware/%s", fw_name); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Signed-off-by: Shuah Khan <skhan(a)linuxfoundation.org> --- tools/testing/selftests/firmware/fw_namespace.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/firmware/fw_namespace.c b/tools/testing/selftests/firmware/fw_namespace.c index 0e393cb5f42d..4c6f0cd83c5b 100644 --- a/tools/testing/selftests/firmware/fw_namespace.c +++ b/tools/testing/selftests/firmware/fw_namespace.c @@ -129,7 +129,8 @@ int main(int argc, char **argv) die("mounting tmpfs to /lib/firmware failed\n"); sys_path = argv[1]; - asprintf(&fw_path, "/lib/firmware/%s", fw_name); + if (asprintf(&fw_path, "/lib/firmware/%s", fw_name) < 0) + die("error: failed to build full fw_path\n"); setup_fw(fw_path); -- 2.30.2

4 years, 3 months

1
0
0 0

KUnit Hackathon

by André Almeida

Hello, We belong to two student groups, FLUSP [1] and LKCAMP [2], both of which are focused on sharing kernel and free software development knowledge and experience with fellow free software developers and newcomers. As part of our efforts, we'll be organizing a KUnit hackathon in the next Saturday (July 10), where we intend to help newcomers convert existing runtime tests (the ones found at lib/) to KUnit and maybe create new ones. Depending on the number of attendees, a high volume of patches may be sent throughout the day. We will do our best to review all patches before they go to the kernel mailing lists hoping to avoid wasting your time with minor patching issues. So we wanted to let you know of all this beforehand and give you the time to send any suggestions or comments on all this. For instance, we may ask people to add a special tag to their patches so you may batch review them all at a later time if you wish. Anyhow, we'd really appreciate having your opinion on this. Thanks! [1] - https://flusp.ime.usp.br/ [2] - https://lkcamp.dev/

4 years, 3 months

3
5
0 0

[PATCH v5 bpf-next 0/3] libbpf: BTF dumper support for typed data

by Alan Maguire

Add a libbpf dumper function that supports dumping a representation of data passed in using the BTF id associated with the data in a manner similar to the bpf_snprintf_btf helper. Default output format is identical to that dumped by bpf_snprintf_btf() (bar using tabs instead of spaces for indentation, but the indent string can be customized also); for example, a "struct sk_buff" representation would look like this: (struct sk_buff){ (union){ (struct){ .next = (struct sk_buff *)0xffffffffffffffff, .prev = (struct sk_buff *)0xffffffffffffffff, (union){ .dev = (struct net_device *)0xffffffffffffffff, .dev_scratch = (long unsigned int)18446744073709551615, }, }, ... Patch 1 implements the dump functionality in a manner similar to that in kernel/bpf/btf.c, but with a view to fitting into libbpf more naturally. For example, rather than using flags, boolean dump options are used to control output. In addition, rather than combining checks for display (such as is this field zero?) and actual display - as is done for the kernel code - the code is organized to separate zero and overflow checks from type display. Patch 2 adds ASSERT_STRNEQ() for use in the following BTF dumper tests. Patch 3 consists of selftests that utilize a dump printf function to snprintf the dump output to a string for comparison with expected output. Tests deliberately mirror those in snprintf_btf helper test to keep output consistent, but also cover overflow handling, var/section display. Changes since v4 [1] - Andrii kindly provided code to unify emitting a prepended cast (for example "(int)") with existing code, and this had the nice benefit of adding array indices in type specifications (Andrii, patches 1, 3) - Fixed indent_str option to make it a const char *, stored in a fixed-length buffer internally (Andrii, patch 1) - Reworked bit shift logic to minimize endian-specific interactions, and use same macros as found elsewhere in libbpf to determine endianness (Andrii, patch 1) - Fixed type emitting to ensure that a trailing '\n' is not displayed; newlines are added during struct/array display, but for a single type the last character is no longer a newline (Andrii, patches 1, 3) - Added support for ASSERT_STRNEQ() macro (Andrii, patch 2) - Split tests into subtests for int, char, enum etc rather than one "dump type data" subtest (Andrii, patch 3) - Made better use of ASSERT* macros (Andrii, patch 3) - Got rid of some other TEST_* macros that were unneeded (Andrii, patch 3) - Switched to using "struct fs_context" to verify enum bitfield values (Andrii, patch 3) Changes since v3 [2] - Retained separation of emitting of type name cast prefixing type values from existing functionality such as btf_dump_emit_type_chain() since initial code-shared version had so many exceptions it became hard to read. For example, we don't emit a type name if the type to be displayed is an array member, we also always emit "forward" definitions for structs/unions that aren't really forward definitions (we just want a "struct foo" output for "(struct foo){.bar = ...". We also always ignore modifiers const/volatile/restrict as they clutter output when emitting large types. - Added configurable 4-char indent string option; defaults to tab (Andrii) - Added support for BTF_KIND_FLOAT and associated tests (Andrii) - Added support for BTF_KIND_FUNC_PROTO function pointers to improve output of "ops" structures; for example: (struct file_operations){ .owner = (struct module *)0xffffffffffffffff, .llseek = (loff_t(*)(struct file *, loff_t, int))0xffffffffffffffff, ... Added associated test also (Andrii) - Added handling for enum bitfields and associated test (Andrii) - Allocation of "struct btf_dump_data" done on-demand (Andrii) - Removed ".field = " output from function emitting type name and into caller (Andrii) - Removed BTF_INT_OFFSET() support (Andrii) - Use libbpf_err() to set errno for error cases (Andrii) - btf_dump_dump_type_data() returns size written, which is used when returning successfully from btf_dump__dump_type_data() (Andrii) Changes since v2 [3] - Renamed function to btf_dump__dump_type_data, reorganized arguments such that opts are last (Andrii) - Modified code to separate questions about display such as have we overflowed?/is this field zero? from actual display of typed data, such that we ask those questions separately from the code that actually displays typed data (Andrii) - Reworked code to handle overflow - where we do not provide enough data for the type we wish to display - by returning -E2BIG and attempting to present as much data as possible. Such a mode of operation allows for tracers which retrieve partial data (such as first 1024 bytes of a "struct task_struct" say), and want to display that partial data, while also knowing that it is not the full type. Such tracers can then denote this (perhaps via "..." or similar). - Explored reusing existing type emit functions, such as passing in a type id stack with a single type id to btf_dump_emit_type_chain() to support the display of typed data where a "cast" is prepended to the data to denote its type; "(int)1", "(struct foo){", etc. However the task of emitting a ".field_name = (typecast)" did not match well with model of walking the stack to display innermost types first and made the resultant code harder to read. Added a dedicated btf_dump_emit_type_name() function instead which is only ~70 lines (Andrii) - Various cleanups around bitfield macros, unneeded member iteration macros, avoiding compiler complaints when displaying int da ta by casting to long long, etc (Andrii) - Use DECLARE_LIBBPF_OPTS() in defining opts for tests (Andrii) - Added more type tests, overflow tests, var tests and section tests. Changes since RFC [4] - The initial approach explored was to share the kernel code with libbpf using #defines to paper over the different needs; however it makes more sense to try and fit in with libbpf code style for maintenance. A comment in the code points at the implementation in kernel/bpf/btf.c and notes that any issues found in it should be fixed there or vice versa; mirroring the tests should help with this also (Andrii) [1] https://lore.kernel.org/bpf/CAEf4BzYtbnphCkhz0epMKE4zWfvSOiMpu+-SXp9hadsrRA… [2] https://lore.kernel.org/bpf/1622131170-8260-1-git-send-email-alan.maguire@o… [3] https://lore.kernel.org/bpf/1610921764-7526-1-git-send-email-alan.maguire@o… [4] https://lore.kernel.org/bpf/1610386373-24162-1-git-send-email-alan.maguire@… Alan Maguire (3): libbpf: BTF dumper support for typed data selftests/bpf: add ASSERT_STRNEQ() variant for test_progs selftests/bpf: add dump type data tests to btf dump tests tools/lib/bpf/btf.h | 19 + tools/lib/bpf/btf_dump.c | 833 +++++++++++++++++++++- tools/lib/bpf/libbpf.map | 1 + tools/testing/selftests/bpf/prog_tests/btf_dump.c | 644 +++++++++++++++++ tools/testing/selftests/bpf/test_progs.h | 12 + 5 files changed, 1504 insertions(+), 5 deletions(-) -- 1.8.3.1

4 years, 3 months

2
6
0 0

[PATCH AUTOSEL 5.10 073/137] selftests: Clean forgotten resources as part of cleanup()

by Sasha Levin

From: Amit Cohen <amcohen(a)nvidia.com> [ Upstream commit e67dfb8d15deb33c425d0b0ee22f2e5eef54c162 ] Several tests do not set some ports down as part of their cleanup(), resulting in IPv6 link-local addresses and associated routes not being deleted. These leaks were found using a BPF tool that monitors ASIC resources. Solve this by setting the ports down at the end of the tests. Signed-off-by: Amit Cohen <amcohen(a)nvidia.com> Reviewed-by: Petr Machata <petrm(a)nvidia.com> Signed-off-by: Ido Schimmel <idosch(a)nvidia.com> Signed-off-by: David S. Miller <davem(a)davemloft.net> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- .../selftests/drivers/net/mlxsw/devlink_trap_l3_drops.sh | 3 +++ .../selftests/drivers/net/mlxsw/devlink_trap_l3_exceptions.sh | 3 +++ tools/testing/selftests/drivers/net/mlxsw/qos_dscp_bridge.sh | 2 ++ tools/testing/selftests/net/forwarding/pedit_dsfield.sh | 2 ++ tools/testing/selftests/net/forwarding/pedit_l4port.sh | 2 ++ tools/testing/selftests/net/forwarding/skbedit_priority.sh | 2 ++ 6 files changed, 14 insertions(+) diff --git a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_drops.sh b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_drops.sh index f5abb1ebd392..269b2680611b 100755 --- a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_drops.sh +++ b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_drops.sh @@ -108,6 +108,9 @@ router_destroy() __addr_add_del $rp1 del 192.0.2.2/24 2001:db8:1::2/64 tc qdisc del dev $rp2 clsact + + ip link set dev $rp2 down + ip link set dev $rp1 down } setup_prepare() diff --git a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_exceptions.sh b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_exceptions.sh index 1fedfc9da434..1d157b1bd838 100755 --- a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_exceptions.sh +++ b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_exceptions.sh @@ -111,6 +111,9 @@ router_destroy() __addr_add_del $rp1 del 192.0.2.2/24 2001:db8:1::2/64 tc qdisc del dev $rp2 clsact + + ip link set dev $rp2 down + ip link set dev $rp1 down } setup_prepare() diff --git a/tools/testing/selftests/drivers/net/mlxsw/qos_dscp_bridge.sh b/tools/testing/selftests/drivers/net/mlxsw/qos_dscp_bridge.sh index 5cbff8038f84..28a570006d4d 100755 --- a/tools/testing/selftests/drivers/net/mlxsw/qos_dscp_bridge.sh +++ b/tools/testing/selftests/drivers/net/mlxsw/qos_dscp_bridge.sh @@ -93,7 +93,9 @@ switch_destroy() lldptool -T -i $swp1 -V APP -d $(dscp_map 10) >/dev/null lldpad_app_wait_del + ip link set dev $swp2 down ip link set dev $swp2 nomaster + ip link set dev $swp1 down ip link set dev $swp1 nomaster ip link del dev br1 } diff --git a/tools/testing/selftests/net/forwarding/pedit_dsfield.sh b/tools/testing/selftests/net/forwarding/pedit_dsfield.sh index 55eeacf59241..64fbd211d907 100755 --- a/tools/testing/selftests/net/forwarding/pedit_dsfield.sh +++ b/tools/testing/selftests/net/forwarding/pedit_dsfield.sh @@ -75,7 +75,9 @@ switch_destroy() tc qdisc del dev $swp2 clsact tc qdisc del dev $swp1 clsact + ip link set dev $swp2 down ip link set dev $swp2 nomaster + ip link set dev $swp1 down ip link set dev $swp1 nomaster ip link del dev br1 } diff --git a/tools/testing/selftests/net/forwarding/pedit_l4port.sh b/tools/testing/selftests/net/forwarding/pedit_l4port.sh index 5f20d289ee43..10e594c55117 100755 --- a/tools/testing/selftests/net/forwarding/pedit_l4port.sh +++ b/tools/testing/selftests/net/forwarding/pedit_l4port.sh @@ -71,7 +71,9 @@ switch_destroy() tc qdisc del dev $swp2 clsact tc qdisc del dev $swp1 clsact + ip link set dev $swp2 down ip link set dev $swp2 nomaster + ip link set dev $swp1 down ip link set dev $swp1 nomaster ip link del dev br1 } diff --git a/tools/testing/selftests/net/forwarding/skbedit_priority.sh b/tools/testing/selftests/net/forwarding/skbedit_priority.sh index e3bd8a6bb8b4..bde11dc27873 100755 --- a/tools/testing/selftests/net/forwarding/skbedit_priority.sh +++ b/tools/testing/selftests/net/forwarding/skbedit_priority.sh @@ -72,7 +72,9 @@ switch_destroy() tc qdisc del dev $swp2 clsact tc qdisc del dev $swp1 clsact + ip link set dev $swp2 down ip link set dev $swp2 nomaster + ip link set dev $swp1 down ip link set dev $swp1 nomaster ip link del dev br1 } -- 2.30.2

4 years, 3 months

1
0
0 0

[PATCH AUTOSEL 5.12 082/160] selftests: Clean forgotten resources as part of cleanup()

by Sasha Levin

From: Amit Cohen <amcohen(a)nvidia.com> [ Upstream commit e67dfb8d15deb33c425d0b0ee22f2e5eef54c162 ] Several tests do not set some ports down as part of their cleanup(), resulting in IPv6 link-local addresses and associated routes not being deleted. These leaks were found using a BPF tool that monitors ASIC resources. Solve this by setting the ports down at the end of the tests. Signed-off-by: Amit Cohen <amcohen(a)nvidia.com> Reviewed-by: Petr Machata <petrm(a)nvidia.com> Signed-off-by: Ido Schimmel <idosch(a)nvidia.com> Signed-off-by: David S. Miller <davem(a)davemloft.net> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- .../selftests/drivers/net/mlxsw/devlink_trap_l3_drops.sh | 3 +++ .../selftests/drivers/net/mlxsw/devlink_trap_l3_exceptions.sh | 3 +++ tools/testing/selftests/drivers/net/mlxsw/qos_dscp_bridge.sh | 2 ++ tools/testing/selftests/net/forwarding/pedit_dsfield.sh | 2 ++ tools/testing/selftests/net/forwarding/pedit_l4port.sh | 2 ++ tools/testing/selftests/net/forwarding/skbedit_priority.sh | 2 ++ 6 files changed, 14 insertions(+) diff --git a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_drops.sh b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_drops.sh index 4029833f7e27..160891dcb4bc 100755 --- a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_drops.sh +++ b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_drops.sh @@ -109,6 +109,9 @@ router_destroy() __addr_add_del $rp1 del 192.0.2.2/24 2001:db8:1::2/64 tc qdisc del dev $rp2 clsact + + ip link set dev $rp2 down + ip link set dev $rp1 down } setup_prepare() diff --git a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_exceptions.sh b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_exceptions.sh index 1fedfc9da434..1d157b1bd838 100755 --- a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_exceptions.sh +++ b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_exceptions.sh @@ -111,6 +111,9 @@ router_destroy() __addr_add_del $rp1 del 192.0.2.2/24 2001:db8:1::2/64 tc qdisc del dev $rp2 clsact + + ip link set dev $rp2 down + ip link set dev $rp1 down } setup_prepare() diff --git a/tools/testing/selftests/drivers/net/mlxsw/qos_dscp_bridge.sh b/tools/testing/selftests/drivers/net/mlxsw/qos_dscp_bridge.sh index 5cbff8038f84..28a570006d4d 100755 --- a/tools/testing/selftests/drivers/net/mlxsw/qos_dscp_bridge.sh +++ b/tools/testing/selftests/drivers/net/mlxsw/qos_dscp_bridge.sh @@ -93,7 +93,9 @@ switch_destroy() lldptool -T -i $swp1 -V APP -d $(dscp_map 10) >/dev/null lldpad_app_wait_del + ip link set dev $swp2 down ip link set dev $swp2 nomaster + ip link set dev $swp1 down ip link set dev $swp1 nomaster ip link del dev br1 } diff --git a/tools/testing/selftests/net/forwarding/pedit_dsfield.sh b/tools/testing/selftests/net/forwarding/pedit_dsfield.sh index 55eeacf59241..64fbd211d907 100755 --- a/tools/testing/selftests/net/forwarding/pedit_dsfield.sh +++ b/tools/testing/selftests/net/forwarding/pedit_dsfield.sh @@ -75,7 +75,9 @@ switch_destroy() tc qdisc del dev $swp2 clsact tc qdisc del dev $swp1 clsact + ip link set dev $swp2 down ip link set dev $swp2 nomaster + ip link set dev $swp1 down ip link set dev $swp1 nomaster ip link del dev br1 } diff --git a/tools/testing/selftests/net/forwarding/pedit_l4port.sh b/tools/testing/selftests/net/forwarding/pedit_l4port.sh index 5f20d289ee43..10e594c55117 100755 --- a/tools/testing/selftests/net/forwarding/pedit_l4port.sh +++ b/tools/testing/selftests/net/forwarding/pedit_l4port.sh @@ -71,7 +71,9 @@ switch_destroy() tc qdisc del dev $swp2 clsact tc qdisc del dev $swp1 clsact + ip link set dev $swp2 down ip link set dev $swp2 nomaster + ip link set dev $swp1 down ip link set dev $swp1 nomaster ip link del dev br1 } diff --git a/tools/testing/selftests/net/forwarding/skbedit_priority.sh b/tools/testing/selftests/net/forwarding/skbedit_priority.sh index e3bd8a6bb8b4..bde11dc27873 100755 --- a/tools/testing/selftests/net/forwarding/skbedit_priority.sh +++ b/tools/testing/selftests/net/forwarding/skbedit_priority.sh @@ -72,7 +72,9 @@ switch_destroy() tc qdisc del dev $swp2 clsact tc qdisc del dev $swp1 clsact + ip link set dev $swp2 down ip link set dev $swp2 nomaster + ip link set dev $swp1 down ip link set dev $swp1 nomaster ip link del dev br1 } -- 2.30.2

4 years, 3 months

1
0
0 0

[PATCH AUTOSEL 5.13 096/189] selftests: Clean forgotten resources as part of cleanup()

by Sasha Levin

From: Amit Cohen <amcohen(a)nvidia.com> [ Upstream commit e67dfb8d15deb33c425d0b0ee22f2e5eef54c162 ] Several tests do not set some ports down as part of their cleanup(), resulting in IPv6 link-local addresses and associated routes not being deleted. These leaks were found using a BPF tool that monitors ASIC resources. Solve this by setting the ports down at the end of the tests. Signed-off-by: Amit Cohen <amcohen(a)nvidia.com> Reviewed-by: Petr Machata <petrm(a)nvidia.com> Signed-off-by: Ido Schimmel <idosch(a)nvidia.com> Signed-off-by: David S. Miller <davem(a)davemloft.net> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- .../selftests/drivers/net/mlxsw/devlink_trap_l3_drops.sh | 3 +++ .../selftests/drivers/net/mlxsw/devlink_trap_l3_exceptions.sh | 3 +++ tools/testing/selftests/drivers/net/mlxsw/qos_dscp_bridge.sh | 2 ++ tools/testing/selftests/net/forwarding/pedit_dsfield.sh | 2 ++ tools/testing/selftests/net/forwarding/pedit_l4port.sh | 2 ++ tools/testing/selftests/net/forwarding/skbedit_priority.sh | 2 ++ 6 files changed, 14 insertions(+) diff --git a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_drops.sh b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_drops.sh index 4029833f7e27..160891dcb4bc 100755 --- a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_drops.sh +++ b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_drops.sh @@ -109,6 +109,9 @@ router_destroy() __addr_add_del $rp1 del 192.0.2.2/24 2001:db8:1::2/64 tc qdisc del dev $rp2 clsact + + ip link set dev $rp2 down + ip link set dev $rp1 down } setup_prepare() diff --git a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_exceptions.sh b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_exceptions.sh index 42d44e27802c..190c1b6b5365 100755 --- a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_exceptions.sh +++ b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_exceptions.sh @@ -111,6 +111,9 @@ router_destroy() __addr_add_del $rp1 del 192.0.2.2/24 2001:db8:1::2/64 tc qdisc del dev $rp2 clsact + + ip link set dev $rp2 down + ip link set dev $rp1 down } setup_prepare() diff --git a/tools/testing/selftests/drivers/net/mlxsw/qos_dscp_bridge.sh b/tools/testing/selftests/drivers/net/mlxsw/qos_dscp_bridge.sh index 5cbff8038f84..28a570006d4d 100755 --- a/tools/testing/selftests/drivers/net/mlxsw/qos_dscp_bridge.sh +++ b/tools/testing/selftests/drivers/net/mlxsw/qos_dscp_bridge.sh @@ -93,7 +93,9 @@ switch_destroy() lldptool -T -i $swp1 -V APP -d $(dscp_map 10) >/dev/null lldpad_app_wait_del + ip link set dev $swp2 down ip link set dev $swp2 nomaster + ip link set dev $swp1 down ip link set dev $swp1 nomaster ip link del dev br1 } diff --git a/tools/testing/selftests/net/forwarding/pedit_dsfield.sh b/tools/testing/selftests/net/forwarding/pedit_dsfield.sh index 55eeacf59241..64fbd211d907 100755 --- a/tools/testing/selftests/net/forwarding/pedit_dsfield.sh +++ b/tools/testing/selftests/net/forwarding/pedit_dsfield.sh @@ -75,7 +75,9 @@ switch_destroy() tc qdisc del dev $swp2 clsact tc qdisc del dev $swp1 clsact + ip link set dev $swp2 down ip link set dev $swp2 nomaster + ip link set dev $swp1 down ip link set dev $swp1 nomaster ip link del dev br1 } diff --git a/tools/testing/selftests/net/forwarding/pedit_l4port.sh b/tools/testing/selftests/net/forwarding/pedit_l4port.sh index 5f20d289ee43..10e594c55117 100755 --- a/tools/testing/selftests/net/forwarding/pedit_l4port.sh +++ b/tools/testing/selftests/net/forwarding/pedit_l4port.sh @@ -71,7 +71,9 @@ switch_destroy() tc qdisc del dev $swp2 clsact tc qdisc del dev $swp1 clsact + ip link set dev $swp2 down ip link set dev $swp2 nomaster + ip link set dev $swp1 down ip link set dev $swp1 nomaster ip link del dev br1 } diff --git a/tools/testing/selftests/net/forwarding/skbedit_priority.sh b/tools/testing/selftests/net/forwarding/skbedit_priority.sh index e3bd8a6bb8b4..bde11dc27873 100755 --- a/tools/testing/selftests/net/forwarding/skbedit_priority.sh +++ b/tools/testing/selftests/net/forwarding/skbedit_priority.sh @@ -72,7 +72,9 @@ switch_destroy() tc qdisc del dev $swp2 clsact tc qdisc del dev $swp1 clsact + ip link set dev $swp2 down ip link set dev $swp2 nomaster + ip link set dev $swp1 down ip link set dev $swp1 nomaster ip link del dev br1 } -- 2.30.2

4 years, 3 months

1
0
0 0

[PATCH 0/2] math: RATIONAL and RATIONAL_KUNIT_TEST improvements

by Geert Uytterhoeven

Hi all, This patch series makes the RATIONAL symbol tristate, so it is not forced builtin if all users are modular, and makes the RATIONAL_KUNIT_TEST depend on RATIONAL, to avoid enabling RATIONAL if there are no real users. Changes compared to v1: - Drop compile-testing and help text for RATIONAL. - Make RATIONAL_KUNIT_TEST depend on RATIONAL. Thanks for your comments! [1] https://lore.kernel.org/r/20210705114633.1500710-1-geert@linux-m68k.org/ Geert Uytterhoeven (2): math: Make RATIONAL tristate math: RATIONAL_KUNIT_TEST should depend on RATIONAL instead of selecting it lib/Kconfig.debug | 3 +-- lib/math/Kconfig | 2 +- lib/math/rational.c | 3 +++ 3 files changed, 5 insertions(+), 3 deletions(-) -- 2.25.1 Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert(a)linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds

4 years, 3 months

2
3
0 0

[PATCH] math: Make RATIONAL tristate

by Geert Uytterhoeven

All but one symbols that select RATIONAL are tristate, but RATIONAL itself is bool. Change it to tristate, so the rational fractions support code can be modular if no builtin code relies on it. While at it, add support for compile-testing and provide a help text. Signed-off-by: Geert Uytterhoeven <geert(a)linux-m68k.org> --- Exposed by commit b6c75c4afceb8bc0 ("lib/math/rational: add Kunit test cases") and CONFIG_KUNIT_ALL_TESTS=m. I'm not so happy RATIONAL_KUNIT_TEST selects RATIONAL, as test code should depend on the presence of the feature to test. Else enabling a test may add unneeded code to a production kernel. Perhaps the "if COMPILE_TEST" should be dropped, making RATIONAL visible, so RATIONAL_KUNIT_TEST can depend on RATIONAL instead? --- lib/math/Kconfig | 5 ++++- lib/math/rational.c | 3 +++ 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/lib/math/Kconfig b/lib/math/Kconfig index f19bc9734fa7cc4b..14def252ea7db6e0 100644 --- a/lib/math/Kconfig +++ b/lib/math/Kconfig @@ -14,4 +14,7 @@ config PRIME_NUMBERS If unsure, say N. config RATIONAL - bool + tristate "Rational fractions support" if COMPILE_TEST + help + This option provides support for rational fractions. + This symbol should be selected automatically by drivers that need it. diff --git a/lib/math/rational.c b/lib/math/rational.c index c0ab51d8fbb98d17..ec59d426ea638b0f 100644 --- a/lib/math/rational.c +++ b/lib/math/rational.c @@ -13,6 +13,7 @@ #include <linux/export.h> #include <linux/minmax.h> #include <linux/limits.h> +#include <linux/module.h> /* * calculate best rational approximation for a given fraction @@ -106,3 +107,5 @@ void rational_best_approximation( } EXPORT_SYMBOL(rational_best_approximation); + +MODULE_LICENSE("GPL v2"); -- 2.25.1

4 years, 3 months

2
2
0 0

Re: [PATCH v8 3/8] security/brute: Detect a brute force attack

by Alexander Lobakin

Hi, From: John Wood <john.wood(a)gmx.com> Date: Sat, 5 Jun 2021 17:04:00 +0200 > For a correct management of a fork brute force attack it is necessary to > track all the information related to the application crashes. To do so, > use the extended attributes (xattr) of the executable files and define a > statistical data structure to hold all the necessary information shared > by all the fork hierarchy processes. This info is the number of crashes, > the last crash timestamp and the crash period's moving average. > > The same can be achieved using a pointer to the fork hierarchy > statistical data held by the task_struct structure. But this has an > important drawback: a brute force attack that happens through the execve > system call losts the faults info since these statistics are freed when > the fork hierarchy disappears. Using this method makes not possible to > manage this attack type that can be successfully treated using extended > attributes. > > Also, to avoid false positives during the attack detection it is > necessary to narrow the possible cases. So, only the following scenarios > are taken into account: > > 1.- Launching (fork()/exec()) a setuid/setgid process repeatedly until a > desirable memory layout is got (e.g. Stack Clash). > 2.- Connecting to an exec()ing network daemon (e.g. xinetd) repeatedly > until a desirable memory layout is got (e.g. what CTFs do for simple > network service). > 3.- Launching processes without exec() (e.g. Android Zygote) and > exposing state to attack a sibling. > 4.- Connecting to a fork()ing network daemon (e.g. apache) repeatedly > until the previously shared memory layout of all the other children > is exposed (e.g. kind of related to HeartBleed). > > In each case, a privilege boundary has been crossed: > > Case 1: setuid/setgid process > Case 2: network to local > Case 3: privilege changes > Case 4: network to local > > To mark that a privilege boundary has been crossed it is only necessary > to create a new stats for the executable file via the extended attribute > and only if it has no previous statistical data. This is done using four > different LSM hooks, one per privilege boundary: > > setuid/setgid process --> bprm_creds_from_file hook (based on secureexec > flag). > network to local -------> socket_accept hook (taking into account only > external connections). > privilege changes ------> task_fix_setuid and task_fix_setgid hooks. > > To detect a brute force attack it is necessary that the executable file > statistics be updated in every fatal crash and the most important data > to update is the application crash period. To do so, use the new > "task_fatal_signal" LSM hook added in a previous step. > > The application crash period must be a value that is not prone to change > due to spurious data and follows the real crash period. So, to compute > it, the exponential moving average (EMA) is used. > > Based on the updated statistics two different attacks can be handled. A > slow brute force attack that is detected if the maximum number of faults > per fork hierarchy is reached and a fast brute force attack that is > detected if the application crash period falls below a certain > threshold. > > Moreover, only the signals delivered by the kernel are taken into > account with the exception of the SIGABRT signal since the latter is > used by glibc for stack canary, malloc, etc failures, which may indicate > that a mitigation has been triggered. > > Signed-off-by: John Wood <john.wood(a)gmx.com> > > <snip> > > +static int brute_get_xattr_stats(struct dentry *dentry, struct inode *inode, > + struct brute_stats *stats) > +{ > + int rc; > + struct brute_raw_stats raw_stats; > + > + rc = __vfs_getxattr(dentry, inode, XATTR_NAME_BRUTE, &raw_stats, > + sizeof(raw_stats)); > + if (rc < 0) > + return rc; > + > + stats->faults = le32_to_cpu(raw_stats.faults); > + stats->nsecs = le64_to_cpu(raw_stats.nsecs); > + stats->period = le64_to_cpu(raw_stats.period); > + stats->flags = raw_stats.flags; > + return 0; > +} > > <snip> > > +static int brute_task_execve(struct linux_binprm *bprm, struct file *file) > +{ > + struct dentry *dentry = file_dentry(bprm->file); > + struct inode *inode = file_inode(bprm->file); > + struct brute_stats stats; > + int rc; > + > + inode_lock(inode); > + rc = brute_get_xattr_stats(dentry, inode, &stats); > + if (WARN_ON_ONCE(rc && rc != -ENODATA)) > + goto unlock; I think I caught a problem here. Have you tested this with initramfs? According to init/do_mount.c's init_rootfs()/rootfs_init_fs_context(), when `root=` cmdline parameter is not empty, kernel creates rootfs of type ramfs (tmpfs otherwise). The thing about ramfs is that it doesn't support xattrs. I'm running this v8 on a regular PC with initramfs and having `root=` in cmdline, and Brute doesn't allow the kernel to run any init processes (/init, /sbin/init, ...) with err == -95 (-EOPNOTSUPP) -- I'm getting a WARNING: CPU: 0 PID: 173 at brute_task_execve+0x15d/0x200 <snip> Failed to execute /init (error -95) and so on (and a panic at the end). If I omit `root=` from cmdline, then the kernel runs init process just fine -- I guess because initramfs is then placed inside tmpfs with xattr support. As for me, this ramfs/tmpfs selection based on `root=` presence is ridiculous and I don't see or know any reasons behind that. But that's another story, and ramfs might be not the only one system without xattr support. I think Brute should have a fallback here, e.g. it could simply ignore files from xattr-incapable filesystems instead of such WARNING splats and stuff. > + > + if (rc == -ENODATA && bprm->secureexec) { > + brute_reset_stats(&stats); > + rc = brute_set_xattr_stats(dentry, inode, &stats); > + if (WARN_ON_ONCE(rc)) > + goto unlock; > + } > + > + rc = 0; > +unlock: > + inode_unlock(inode); > + return rc; > +} > + > > <snip> Thanks, Al

4 years, 4 months

2
5
0 0

[PATCH] selftests/sgx: Fix Q1 and Q2 calculation in sigstruct.c

by Jarkko Sakkinen

From: Tianjia Zhang <tianjia.zhang(a)linux.alibaba.com> Q1 and Q2 are numbers with *maximum* length of 384 bytes. If the calculated length of Q1 and Q2 is less than 384 bytes, things will go wrong. E.g. if Q2 is 383 bytes, then 1. The bytes of q2 are copied to sigstruct->q2 in calc_q1q2(). 2. The entire sigstruct->q2 is reversed, which results it being 256 * Q2, given that the last byte of sigstruct->q2 is added to before the bytes given by calc_q1q2(). Either change in key or measurement can trigger the bug. E.g. an unmeasured heap could cause a devastating change in Q1 or Q2. Reverse exactly the bytes of Q1 and Q2 in calc_q1q2() before returning to the caller. Link: https://lore.kernel.org/linux-sgx/20210301051836.30738-1-tianjia.zhang@linu… Signed-off-by: Tianjia Zhang <tianjia.zhang(a)linux.alibaba.com> Signed-off-by: Jarkko Sakkinen <jarkko(a)kernel.org> --- The original patch did a bad job explaining the code change but it turned out making sense. I wrote a new description. tools/testing/selftests/sgx/sigstruct.c | 41 +++++++++++++------------ 1 file changed, 21 insertions(+), 20 deletions(-) diff --git a/tools/testing/selftests/sgx/sigstruct.c b/tools/testing/selftests/sgx/sigstruct.c index dee7a3d6c5a5..92bbc5a15c39 100644 --- a/tools/testing/selftests/sgx/sigstruct.c +++ b/tools/testing/selftests/sgx/sigstruct.c @@ -55,10 +55,27 @@ static bool alloc_q1q2_ctx(const uint8_t *s, const uint8_t *m, return true; } +static void reverse_bytes(void *data, int length) +{ + int i = 0; + int j = length - 1; + uint8_t temp; + uint8_t *ptr = data; + + while (i < j) { + temp = ptr[i]; + ptr[i] = ptr[j]; + ptr[j] = temp; + i++; + j--; + } +} + static bool calc_q1q2(const uint8_t *s, const uint8_t *m, uint8_t *q1, uint8_t *q2) { struct q1q2_ctx ctx; + int len; if (!alloc_q1q2_ctx(s, m, &ctx)) { fprintf(stderr, "Not enough memory for Q1Q2 calculation\n"); @@ -89,8 +106,10 @@ static bool calc_q1q2(const uint8_t *s, const uint8_t *m, uint8_t *q1, goto out; } - BN_bn2bin(ctx.q1, q1); - BN_bn2bin(ctx.q2, q2); + len = BN_bn2bin(ctx.q1, q1); + reverse_bytes(q1, len); + len = BN_bn2bin(ctx.q2, q2); + reverse_bytes(q2, len); free_q1q2_ctx(&ctx); return true; @@ -152,22 +171,6 @@ static RSA *gen_sign_key(void) return key; } -static void reverse_bytes(void *data, int length) -{ - int i = 0; - int j = length - 1; - uint8_t temp; - uint8_t *ptr = data; - - while (i < j) { - temp = ptr[i]; - ptr[i] = ptr[j]; - ptr[j] = temp; - i++; - j--; - } -} - enum mrtags { MRECREATE = 0x0045544145524345, MREADD = 0x0000000044444145, @@ -367,8 +370,6 @@ bool encl_measure(struct encl *encl) /* BE -> LE */ reverse_bytes(sigstruct->signature, SGX_MODULUS_SIZE); reverse_bytes(sigstruct->modulus, SGX_MODULUS_SIZE); - reverse_bytes(sigstruct->q1, SGX_MODULUS_SIZE); - reverse_bytes(sigstruct->q2, SGX_MODULUS_SIZE); EVP_MD_CTX_destroy(ctx); RSA_free(key); -- 2.32.0

4 years, 4 months

1
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0 0

[PATCH] selftests: netfilter: Add RFC-7597 Section 5.1 PSID selftests

by Cole Dishington

Add selftests for masquerading into a smaller subset of ports defined by PSID. Signed-off-by: Cole Dishington <Cole.Dishington(a)alliedtelesis.co.nz> --- .../netfilter/nat_masquerade_psid.sh | 158 ++++++++++++++++++ 1 file changed, 158 insertions(+) create mode 100644 tools/testing/selftests/netfilter/nat_masquerade_psid.sh diff --git a/tools/testing/selftests/netfilter/nat_masquerade_psid.sh b/tools/testing/selftests/netfilter/nat_masquerade_psid.sh new file mode 100644 index 000000000000..90e2e5ca4d68 --- /dev/null +++ b/tools/testing/selftests/netfilter/nat_masquerade_psid.sh @@ -0,0 +1,158 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 +# +# <:copyright-gpl +# Copyright (C) 2021 Allied Telesis Labs NZ +# +# check that NAT can masquerade using PSID defined ranges. +# +# Setup is: +# +# nsclient1(veth0) -> (veth1)nsrouter(veth2) -> (veth0)nsclient2 +# Setup a nat masquerade rule with psid defined ranges. +# + +# Kselftest framework requirement - SKIP code is 4. +ksft_skip=4 +ret=0 +ns_all="nsclient1 nsrouter nsclient2" + +readonly infile="$(mktemp)" +readonly outfile="$(mktemp)" +readonly datalen=32 +readonly server_port=8080 + +conntrack -V > /dev/null 2>&1 +if [ $? -ne 0 ];then + echo "SKIP: Could not run test without conntrack tool" + exit $ksft_skip +fi + +iptables --version > /dev/null 2>&1 +if [ $? -ne 0 ];then + echo "SKIP: Could not run test without iptables tool" + exit $ksft_skip +fi + +ip -Version > /dev/null 2>&1 +if [ $? -ne 0 ];then + echo "SKIP: Could not run test without ip tool" + exit $ksft_skip +fi + +ipv4() { + echo -n 192.168.$1.$2 +} + +cleanup() { + for n in $ns_all; do ip netns del $n;done + + if [ -f "${outfile}" ]; then + rm "$outfile" + fi + if [ -f "${infile}" ]; then + rm "$infile" + fi +} + +server_listen() { + ip netns exec nsclient2 nc -l -p "$server_port" > "$outfile" & + server_pid=$! + sleep 0.2 +} + +client_connect() { + ip netns exec nsclient1 timeout 2 nc -w 1 -p "$port" $(ipv4 2 2) "$server_port" < $infile +} + +verify_data() { + local _ret=0 + wait "$server_pid" + cmp "$infile" "$outfile" 2>/dev/null + _ret=$? + rm "$outfile" + return $_ret +} + +test_service() { + server_listen + client_connect + verify_data +} + +check_connection() { + entry=$(ip netns exec nsrouter conntrack -p tcp --sport $port -L 2>&1) + entry=${entry##*sport=8080 dport=} + entry=${entry%% *} + [[ "x$(( ($entry & $psid_mask) / $two_power_j ))" = "x$psid" ]] +} + +run_test() { + ip netns exec nsrouter iptables -A FORWARD -i veth1 -j ACCEPT + ip netns exec nsrouter iptables -P FORWARD DROP + ip netns exec nsrouter iptables -A FORWARD -m state --state ESTABLISHED,RELATED -j ACCEPT + ip netns exec nsrouter iptables -t nat --new psid + ip netns exec nsrouter iptables -t nat --insert psid -j MASQUERADE --psid $offset:$psid:$psid_length + ip netns exec nsrouter iptables -t nat -I POSTROUTING -o veth2 -j psid + + # calculate psid mask + two_power_j=$(( $offset / (1 << $psid_length) )) + psid_mask=$(( ( (1 << $psid_length) - 1) * $two_power_j )) + + # Create file + dd if=/dev/urandom of="${infile}" bs="${datalen}" count=1 >/dev/null 2>&1 + + # Test multiple ports + for p in 1 2 3 4 5; do + port=1080$p + + test_service + if [ $? -ne 0 ]; then + ret=1 + break + fi + + check_connection + if [ $? -ne 0 ]; then + ret=1 + break + fi + done + + # tidy up test rules + ip netns exec nsrouter iptables -F + ip netns exec nsrouter iptables -t nat -F + ip netns exec nsrouter iptables -t nat -X psid +} + +for n in $ns_all; do + ip netns add $n + ip -net $n link set lo up +done + +for i in 1 2; do + ip link add veth0 netns nsclient$i type veth peer name veth$i netns nsrouter + + ip -net nsclient$i link set veth0 up + ip -net nsclient$i addr add $(ipv4 $i 2)/24 dev veth0 + + ip -net nsrouter link set veth$i up + ip -net nsrouter addr add $(ipv4 $i 1)/24 dev veth$i +done + +ip -net nsclient1 route add default via $(ipv4 1 1) +ip -net nsclient2 route add default via $(ipv4 2 1) + +ip netns exec nsrouter sysctl -q net.ipv4.conf.all.forwarding=1 + +offset=1024 +psid_length=8 +for psid in 0 52; do + run_test + if [ $? -ne 0 ]; then + break + fi +done + +cleanup +exit $ret -- 2.32.0

4 years, 4 months

1
0
0 0

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