May 2022 - Linux-kselftest-mirror

by Steffen Eiden

This series adds an Ultravisor(UV) device letting the userspace send some Ultravisor calls to the UV. Currently two calls are supported. Query Ultravisor Information (QUI) and Receive Attestation Measurement (Attest[ation]). The UV device is implemented as a miscdevice accepting only IOCTLs. The IOCTL cmd specifies the UV call and the IOCTL arg the request and response data depending on the UV call. The device driver writes the UV response in the ioctl argument data. The 'uvdevice' does no checks on the request beside faulty userspace addresses, if sizes are in a sane range before allocating in kernel space, and other tests that prevent the system from corruption. Especially, no checks are made, that will be performed by the UV anyway (E.g. 'invalid command' in case of attestation on unsupported hardware). These errors are reported back to userspace using the UV return code field. The first patch introduces the new device as a module configured to be compiled directly into the kernel (y) similar to the s390 SCLP and CHSH miscdevice modules. The second atch introduces Kselftests which verify error paths of the ioctl. @Greg There is now a userspace tool "pvattest" that uses the new device: https://github.com/ibm-s390-linux/s390-tools/tree/for-2.22 We are currently discussing some nits regarding the processing of certificates and the user interface and add the tool to s390-tools/master afterwards. However, the interface to the kernel is fixed. The tool (pvattest) will be in s390-tools 2.22 that accompanies linux 5.18. You will be most interested in S390-tools/pvattest/src/uvio.{h,c} and S390-tools/pvattest/src/pvattest.c v3->v4: * Dropped the QUI related patches, as we agreed that we do not want to expose the QUI-UVC to userspace for now. * Kconfig option was misplaced inside the S390 TAPE group ->fixed * Some nits fixed: * dropped the X from S390X in the uvdevice.h guard * fixes kernel doc style issue in uvdevice.c v2->v3: The main change is that QUI is now introduced after Attestation as we might not want pick it. Also the Kselftest patch is splitted into Attestation and QUI so that they can be picked without requiring QUI support of the uvdevice. * dropped the Kconfig dependency * reorganized the series: - Patch 1 now covers the introduction of the uvdevice and Attestation - Patch 2 adds QUI to uvdevice - Patch 3/4 add Kselftests for Attestation and QUI * fixed some nits * added some comments v1->v2: * ioctl returns -ENOIOCTLCMD in case of a invalid ioctl command * streamlined reserved field test * default Kconfig is y instead of m * improved selftest documentation Steffen Eiden (2): drivers/s390/char: Add Ultravisor io device selftests: drivers/s390x: Add uvdevice tests MAINTAINERS | 3 + arch/s390/include/asm/uv.h | 23 +- arch/s390/include/uapi/asm/uvdevice.h | 51 ++++ drivers/s390/char/Kconfig | 10 + drivers/s390/char/Makefile | 1 + drivers/s390/char/uvdevice.c | 264 +++++++++++++++++ tools/testing/selftests/Makefile | 1 + tools/testing/selftests/drivers/.gitignore | 1 + .../selftests/drivers/s390x/uvdevice/Makefile | 22 ++ .../selftests/drivers/s390x/uvdevice/config | 1 + .../drivers/s390x/uvdevice/test_uvdevice.c | 276 ++++++++++++++++++ 11 files changed, 652 insertions(+), 1 deletion(-) create mode 100644 arch/s390/include/uapi/asm/uvdevice.h create mode 100644 drivers/s390/char/uvdevice.c create mode 100644 tools/testing/selftests/drivers/s390x/uvdevice/Makefile create mode 100644 tools/testing/selftests/drivers/s390x/uvdevice/config create mode 100644 tools/testing/selftests/drivers/s390x/uvdevice/test_uvdevice.c -- 2.30.2

2 years, 7 months

5
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[RFC PATCH 0/3] fat: add support for the renameat2 RENAME_EXCHANGE flag

by Javier Martinez Canillas

Hello, This series add support for the renameat2 system call RENAME_EXCHANGE flag (which allows to atomically replace two paths) to the vfat filesystem code. There are many use cases for this, but we are particularly interested in making possible for vfat filesystems to be part of OSTree [0] deployments. Currently OSTree relies on symbolic links to make the deployment updates an atomic transactional operation. But RENAME_EXCHANGE could be used [1] to achieve a similar level of robustness when using a vfat filesystem. Patch #1 is just a preparatory patch to introduce the RENAME_EXCHANGE support in patch #2 and finally patch #3 adds some kselftests to test it. This is my first contribution to the fs/* subsystem, so I'm marking this set as RFC, in case I got anything wrong with the patches. But they work correctly on my local testing. [0]: https://github.com/ostreedev/ostree [1]: https://github.com/ostreedev/ostree/issues/1649 Javier Martinez Canillas (3): fat: add a vfat_rename2() and make existing .rename callback a helper fat: add renameat2 RENAME_EXCHANGE flag support selftests/filesystems: add a vfat RENAME_EXCHANGE test MAINTAINERS | 1 + fs/fat/namei_vfat.c | 172 +++++++++++++++++- tools/testing/selftests/Makefile | 1 + .../selftests/filesystems/fat/Makefile | 7 + .../testing/selftests/filesystems/fat/config | 2 + .../filesystems/fat/rename_exchange.c | 37 ++++ .../filesystems/fat/run_fat_tests.sh | 80 ++++++++ 7 files changed, 293 insertions(+), 7 deletions(-) create mode 100644 tools/testing/selftests/filesystems/fat/Makefile create mode 100644 tools/testing/selftests/filesystems/fat/config create mode 100644 tools/testing/selftests/filesystems/fat/rename_exchange.c create mode 100755 tools/testing/selftests/filesystems/fat/run_fat_tests.sh -- 2.35.1

2 years, 7 months

2
2
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[PATCH] selftests/vm/pkeys: fix typo in comment

by Julia Lawall

Spelling mistake (triple letters) in comment. Detected with the help of Coccinelle. Signed-off-by: Julia Lawall <Julia.Lawall(a)inria.fr> --- tools/testing/selftests/vm/protection_keys.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/vm/protection_keys.c b/tools/testing/selftests/vm/protection_keys.c index 2d0ae88665db..291bc1e07842 100644 --- a/tools/testing/selftests/vm/protection_keys.c +++ b/tools/testing/selftests/vm/protection_keys.c @@ -1523,7 +1523,7 @@ void test_implicit_mprotect_exec_only_memory(int *ptr, u16 pkey) /* * Reset the shadow, assuming that the above mprotect() * correctly changed PKRU, but to an unknown value since - * the actual alllocated pkey is unknown. + * the actual allocated pkey is unknown. */ shadow_pkey_reg = __read_pkey_reg();

2 years, 7 months

2
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[PATCH] selftest: sync: fix typo in comment

by Julia Lawall

Spelling mistake (triple letters) in comment. Detected with the help of Coccinelle. Signed-off-by: Julia Lawall <Julia.Lawall(a)inria.fr> --- tools/testing/selftests/sync/sync_stress_parallelism.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/sync/sync_stress_parallelism.c b/tools/testing/selftests/sync/sync_stress_parallelism.c index e6c9be671dfc..6ce56ca204c4 100644 --- a/tools/testing/selftests/sync/sync_stress_parallelism.c +++ b/tools/testing/selftests/sync/sync_stress_parallelism.c @@ -87,7 +87,7 @@ int test_stress_two_threads_shared_timeline(void) /* * Use a single timeline to synchronize two threads - * hammmering on the same counter. + * hammering on the same counter. */ pthread_create(&a, NULL, (void *(*)(void *))

2 years, 7 months

1
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[PATCH] selftests: kvm: correct the renamed test name in .gitignore

by Muhammad Usama Anjum

Correct the vmx_pmu_caps_test test name from vmx_pmu_msrs_test in .gitignore file. Fixes: dc8a9febbab0 ("KVM: selftests: x86: Fix test failure on arch lbr capable platforms") Signed-off-by: Muhammad Usama Anjum <usama.anjum(a)collabora.com> --- tools/testing/selftests/kvm/.gitignore | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/kvm/.gitignore b/tools/testing/selftests/kvm/.gitignore index b2f3c2168d69a..2c17c31fb4494 100644 --- a/tools/testing/selftests/kvm/.gitignore +++ b/tools/testing/selftests/kvm/.gitignore @@ -56,7 +56,7 @@ /x86_64/xen_shinfo_test /x86_64/xen_vmcall_test /x86_64/xss_msr_test -/x86_64/vmx_pmu_msrs_test +/x86_64/vmx_pmu_caps_test /access_tracking_perf_test /demand_paging_test /dirty_log_test -- 2.30.2

2 years, 7 months

2
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[PATCH 0/3] selftests: vm: a few fixup patches

by Patrick Wang

This series contains three fixup patches for vm selftests. They are independent. Please see the patches. Patrick Wang (3): selftests: vm: check numa_available() before operating "merge_across_nodes" in ksm_tests selftests: vm: add "test_hmm.sh" to TEST_FILES selftests: vm: add the "settings" file with timeout variable tools/testing/selftests/vm/Makefile | 1 + tools/testing/selftests/vm/ksm_tests.c | 9 ++++++--- tools/testing/selftests/vm/settings | 1 + 3 files changed, 8 insertions(+), 3 deletions(-) create mode 100644 tools/testing/selftests/vm/settings -- 2.25.1

2 years, 7 months

1
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[PATCH] docs/kselftest: add more guidelines for adding new tests

by Muhammad Usama Anjum

Add the following new guidelines: - Add instruction to use lib.mk - Add instruction about how to use headers from kernel source - Add instruction to add .gitignore file - Add instruction about how to add new test in selftests/Makefile - Add instruction about different build commands to test Signed-off-by: Muhammad Usama Anjum <usama.anjum(a)collabora.com> --- Following patch is fixing build of kselftest when separate output direcotry is specified using kernel's top most Makefile. It should be accepted first: https://lore.kernel.org/lkml/20220223191016.1658728-1-usama.anjum@collabora… --- Documentation/dev-tools/kselftest.rst | 46 ++++++++++++++++++++++++++- 1 file changed, 45 insertions(+), 1 deletion(-) diff --git a/Documentation/dev-tools/kselftest.rst b/Documentation/dev-tools/kselftest.rst index a833ecf12fbc1..637f83d1450dc 100644 --- a/Documentation/dev-tools/kselftest.rst +++ b/Documentation/dev-tools/kselftest.rst @@ -208,6 +208,13 @@ In general, the rules for selftests are Contributing new tests (details) ================================ + * Use lib.mk instead of writing Makefile from sratch. Specify flags and + binaries generation flags on need basis before including lib.mk. :: + + CFLAGS = $(KHDR_INCLUDES) + TEST_GEN_PROGS := close_range_test + include ../lib.mk + * Use TEST_GEN_XXX if such binaries or files are generated during compiling. @@ -230,13 +237,50 @@ Contributing new tests (details) * First use the headers inside the kernel source and/or git repo, and then the system headers. Headers for the kernel release as opposed to headers installed by the distro on the system should be the primary focus to be able - to find regressions. + to find regressions. Use KHDR_INCLUDES in Makefile to include headers from + the kernel source. * If a test needs specific kernel config options enabled, add a config file in the test directory to enable them. e.g: tools/testing/selftests/android/config + * Create a .gitignore file inside test directory and add all generated objects + in it. + + * Add new test name in TARGETS in selftests/Makefile:: + + TARGETS += android + + * All of the following build commands should be successful + + - Same directory build of kselftests:: + + make kselftest-all + make kselftest-install + make kselftest-clean + make kselftest-gen_tar + + - Build with absolute output directory path:: + + make kselftest-all O=/abs_build_path + make kselftest-install O=/abs_build_path + make kselftest-clean O=/abs_build_path + make kselftest-gen_tar O=/abs_build_path + + - Build with relative output directory path:: + + make kselftest-all O=relative_path + make kselftest-install O=relative_path + make kselftest-clean O=relative_path + make kselftest-gen_tar O=relative_path + + - Build from Makefile of selftests directly:: + + make -C tools/testing/selftests + make -C tools/testing/selftests O=/abs_build_path + make -C tools/testing/selftests O=relative_path + Test Module =========== -- 2.30.2

2 years, 7 months

2
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[PATCH] selftests: drivers/dma-buf: Improve message in selftest summary

by Soumya Negi

Selftest udmabuf for the dma-buf driver is skipped when the device file (e.g. /dev/udmabuf) for the DMA buffer cannot be opened i.e. no DMA buffer has been allocated. This patch adds clarity to the SKIP message. Signed-off-by: Soumya Negi <soumya.negi97(a)gmail.com> --- tools/testing/selftests/drivers/dma-buf/udmabuf.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/drivers/dma-buf/udmabuf.c b/tools/testing/selftests/drivers/dma-buf/udmabuf.c index de1c4e6de0b2..c812080e304e 100644 --- a/tools/testing/selftests/drivers/dma-buf/udmabuf.c +++ b/tools/testing/selftests/drivers/dma-buf/udmabuf.c @@ -32,7 +32,8 @@ int main(int argc, char *argv[]) devfd = open("/dev/udmabuf", O_RDWR); if (devfd < 0) { - printf("%s: [skip,no-udmabuf]\n", TEST_PREFIX); + printf("%s: [skip,no-udmabuf: Unable to access DMA buffer device file]\n", + TEST_PREFIX); exit(77); } -- 2.17.1

2 years, 7 months

1
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[REGRESSION] lkft kselftest for next-20220520

by lkft＠linaro.org

## Build * kernel: 5.18.0-rc7 * git: ['', 'https://gitlab.com/Linaro/lkft/mirrors/next/linux-next'] * git branch: master * git commit: 18ecd30af1a8402c162cca1bd58771c0e5be7815 * git describe: next-20220520 * test details: https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20220520 ## Test Regressions (compared to next-20220511) * dragonboard-845c, kselftest-timers - timers.rtcpie * qemu-arm64-gic-version2, kselftest-cgroup - cgroup.test_freezer * qemu-arm64-gic-version2, kselftest-timers - timers.rtcpie * qemu-arm64-gic-version3, kselftest-timers - timers.rtcpie * qemu_arm, kselftest-seccomp - seccomp.seccomp_benchmark * qemu_arm, kselftest-timers - timers.rtcpie * qemu_arm64, kselftest-timers - timers.rtcpie * x86, kselftest-kvm - kvm.evmcs_test - kvm.hyperv_clock - kvm.smm_test - kvm.state_test - kvm.vmx_preemption_timer_test ## Metric Regressions (compared to next-20220511) No metric regressions found. Reported-by: Linux Kernel Functional Testing <lkft(a)linaro.org> ## Test Fixes (compared to next-20220511) * dragonboard-845c, kselftest-proc - proc.proc-uptime-001 ## Metric Fixes (compared to next-20220511) No metric fixes found. ## Test result summary total: 4567, pass: 2439, fail: 379, skip: 1749, xfail: 0 ## Build Summary ## Test suites summary * kselftest-android * kselftest-arm64 * 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-membarrier * kselftest-memfd * kselftest-memory-hotplug * kselftest-mincore * kselftest-mount * kselftest-mqueue * kselftest-net * 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-timens * kselftest-timers * kselftest-tmpfs * kselftest-tpm2 * kselftest-user * kselftest-vm * kselftest-x86 * kselftest-zram -- Linaro LKFT https://lkft.linaro.org

2 years, 7 months

1
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[REGRESSION] lkft kselftest for next-20220519

by lkft＠linaro.org

## Build * kernel: 5.18.0-rc7 * git: ['', 'https://gitlab.com/Linaro/lkft/mirrors/next/linux-next'] * git branch: master * git commit: 21498d01d045c5b95b93e0a0625ae965b4330ebe * git describe: next-20220519 * test details: https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20220519 ## Test Regressions (compared to next-20220506) * hi6220-hikey, kselftest-timers - timers.rtcpie * qemu-arm64-gic-version3, kselftest-timers - timers.rtcpie * qemu_arm64, kselftest-cgroup - cgroup.test_freezer - cgroup.test_kill - cgroup.test_kill.test_cgkill_forkbomb * x86, kselftest-kvm - kvm.evmcs_test - kvm.hyperv_clock - kvm.smm_test - kvm.state_test - kvm.vmx_preemption_timer_test ## Metric Regressions (compared to next-20220506) No metric regressions found. Reported-by: Linux Kernel Functional Testing <lkft(a)linaro.org> ## Test Fixes (compared to next-20220506) * juno-r2, kselftest-pidfd - pidfd.pidfd_poll_test ## Metric Fixes (compared to next-20220506) No metric fixes found. ## Test result summary total: 4356, pass: 2345, fail: 339, skip: 1672, xfail: 0 ## Build Summary ## Test suites summary * kselftest-android * kselftest-arm64 * 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-membarrier * kselftest-memfd * kselftest-memory-hotplug * kselftest-mincore * kselftest-mount * kselftest-mqueue * 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-timens * kselftest-timers * kselftest-tmpfs * kselftest-tpm2 * kselftest-user * kselftest-vm * kselftest-x86 * kselftest-zram -- Linaro LKFT https://lkft.linaro.org

2 years, 7 months

1
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Linux-kselftest-mirror May 2022