February 2023 - Linux-kselftest-mirror

[PATCH v2] kselftest/alsa: Increase kselftest timeout

by Nícolas F. R. A. Prado

The default timeout for kselftests is 45 seconds, but that isn't enough time to run pcm-test when there are many PCMs on the device, nor for mixer-test when slower control buses and fancier CODECs are present. As data points, running pcm-test on mt8192-asurada-spherion takes about 1m15s, and mixer-test on rk3399-gru-kevin takes about 2m. Set the timeout to 4 minutes to allow both pcm-test and mixer-test to run to completion with some slack. Reviewed-by: Mark Brown <broonie(a)kernel.org> Signed-off-by: Nícolas F. R. A. Prado <nfraprado(a)collabora.com> --- Changes in v2: - Reduced timeout from 10 to 4 minutes - Tweaked commit message to also mention mixer-test and run time for mixer-test on rk3399-gru-kevin tools/testing/selftests/alsa/settings | 1 + 1 file changed, 1 insertion(+) create mode 100644 tools/testing/selftests/alsa/settings diff --git a/tools/testing/selftests/alsa/settings b/tools/testing/selftests/alsa/settings new file mode 100644 index 000000000000..b478e684846a --- /dev/null +++ b/tools/testing/selftests/alsa/settings @@ -0,0 +1 @@ +timeout=240 -- 2.39.0

1 month, 3 weeks

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[PATCH v1 1/1] .gitignore: Unignore .kunitconfig

by Andy Shevchenko

There are almost dozen of .kunitconfig files that are ignored but tracked. Unignore them. Signed-off-by: Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> --- .gitignore | 1 + 1 file changed, 1 insertion(+) diff --git a/.gitignore b/.gitignore index 22984d22d29e..e4f2ba0be516 100644 --- a/.gitignore +++ b/.gitignore @@ -100,6 +100,7 @@ modules.order !.get_maintainer.ignore !.gitattributes !.gitignore +!.kunitconfig !.mailmap !.rustfmt.toml -- 2.39.0

1 month, 4 weeks

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[PATCH v2 0/2] selftests/x86: AMX-related test improvements

by Chang S. Bae

Sorry for the delay in this update. Changes from v1: * Improve the skip message along with the changelog massage (Suah Khan). * Simplify the feature support check (Suah Khan). === Cover Letter === A couple of test updates are included: * With the STRICT_SIGALTSTACK_SIZE option [1,2], the kernel's altstack check becomes stringent. The x86 sigaltstack test is ignorant about this. Adjust the test now. This check was established [3] to ensure every AMX task's altstack is sufficient (regardless of that option) [4]. * The AMX test wrongly fails on non-AMX machines. Fix the code to skip the test instead. The series is available in this repository: git://github.com/intel/amx-linux.git selftest [1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arc… [2] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Doc… [3] 3aac3ebea08f ("x86/signal: Implement sigaltstack size validation") [4] 4b7ca609a33d ("x86/signal: Use fpu::__state_user_size for sigalt stack validation") Chang S. Bae (2): selftests/x86/signal: Adjust the test to the kernel's altstack check selftests/x86/amx: Fix the test to avoid failure when AMX is unavailable tools/testing/selftests/x86/amx.c | 31 ++++++++--------------- tools/testing/selftests/x86/sigaltstack.c | 14 +++++++++- 2 files changed, 23 insertions(+), 22 deletions(-) base-commit: 32346491ddf24599decca06190ebca03ff9de7f8 -- 2.17.1

1 month, 4 weeks

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[PATCH] Refactor 'peeksiginfo' ptrace test part

by Ivan Orlov

peeksiginfo creates an array of 10 instances of 'siginfo_t', but actually uses only one. This patch will reduce amount of memory on the stack used by the peeksiginfo test. Signed-off-by: Ivan Orlov <ivan.orlov0322(a)gmail.com> --- tools/testing/selftests/ptrace/peeksiginfo.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/tools/testing/selftests/ptrace/peeksiginfo.c b/tools/testing/selftests/ptrace/peeksiginfo.c index 54900657eb44..a6884f66dc01 100644 --- a/tools/testing/selftests/ptrace/peeksiginfo.c +++ b/tools/testing/selftests/ptrace/peeksiginfo.c @@ -151,7 +151,7 @@ int check_direct_path(pid_t child, int shared, int nr) int main(int argc, char *argv[]) { - siginfo_t siginfo[SIGNR]; + siginfo_t siginfo; int i, exit_code = 1; sigset_t blockmask; pid_t child; @@ -176,13 +176,13 @@ int main(int argc, char *argv[]) /* Send signals in process-wide and per-thread queues */ for (i = 0; i < SIGNR; i++) { - siginfo->si_code = TEST_SICODE_SHARE; - siginfo->si_int = i; - sys_rt_sigqueueinfo(child, SIGRTMIN, siginfo); + siginfo.si_code = TEST_SICODE_SHARE; + siginfo.si_int = i; + sys_rt_sigqueueinfo(child, SIGRTMIN, &siginfo); - siginfo->si_code = TEST_SICODE_PRIV; - siginfo->si_int = i; - sys_rt_tgsigqueueinfo(child, child, SIGRTMIN, siginfo); + siginfo.si_code = TEST_SICODE_PRIV; + siginfo.si_int = i; + sys_rt_tgsigqueueinfo(child, child, SIGRTMIN, &siginfo); } if (sys_ptrace(PTRACE_ATTACH, child, NULL, NULL) == -1) -- 2.34.1

2 months

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[PATCH] selftests: cgroup: Add 'malloc' failures checks in test_memcontrol

by Ivan Orlov

There are several 'malloc' calls in test_memcontrol, which can be unsuccessful. This patch will add 'malloc' failures checking to give more details about test's fail reasons and avoid possible undefined behavior during the future null dereference (like the one in alloc_anon_50M_check_swap function). Signed-off-by: Ivan Orlov <ivan.orlov0322(a)gmail.com> --- tools/testing/selftests/cgroup/test_memcontrol.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/tools/testing/selftests/cgroup/test_memcontrol.c b/tools/testing/selftests/cgroup/test_memcontrol.c index 1e616a8c6a9c..f4f7c0aef702 100644 --- a/tools/testing/selftests/cgroup/test_memcontrol.c +++ b/tools/testing/selftests/cgroup/test_memcontrol.c @@ -98,6 +98,11 @@ static int alloc_anon_50M_check(const char *cgroup, void *arg) int ret = -1; buf = malloc(size); + if (buf == NULL) { + fprintf(stderr, "malloc() failed\n"); + return -1; + } + for (ptr = buf; ptr < buf + size; ptr += PAGE_SIZE) *ptr = 0; @@ -211,6 +216,11 @@ static int alloc_anon_noexit(const char *cgroup, void *arg) char *buf, *ptr; buf = malloc(size); + if (buf == NULL) { + fprintf(stderr, "malloc() failed\n"); + return -1; + } + for (ptr = buf; ptr < buf + size; ptr += PAGE_SIZE) *ptr = 0; @@ -778,6 +788,11 @@ static int alloc_anon_50M_check_swap(const char *cgroup, void *arg) int ret = -1; buf = malloc(size); + if (buf == NULL) { + fprintf(stderr, "malloc() failed\n"); + return -1; + } + for (ptr = buf; ptr < buf + size; ptr += PAGE_SIZE) *ptr = 0; -- 2.34.1

2 months

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[PATCH] tools: Copy linux/align.h into tools/

by Ackerley Tng

This provides alignment macros for use in selftests. Also clean up tools/include/linux/bitmap.h's inline definition of IS_ALIGNED(). Signed-off-by: Ackerley Tng <ackerleytng(a)google.com> --- tools/include/linux/align.h | 15 +++++++++++++++ tools/include/linux/bitmap.h | 2 +- 2 files changed, 16 insertions(+), 1 deletion(-) create mode 100644 tools/include/linux/align.h diff --git a/tools/include/linux/align.h b/tools/include/linux/align.h new file mode 100644 index 000000000000..2b4acec7b95a --- /dev/null +++ b/tools/include/linux/align.h @@ -0,0 +1,15 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _LINUX_ALIGN_H +#define _LINUX_ALIGN_H + +#include <linux/const.h> + +/* @a is a power of 2 value */ +#define ALIGN(x, a) __ALIGN_KERNEL((x), (a)) +#define ALIGN_DOWN(x, a) __ALIGN_KERNEL((x) - ((a) - 1), (a)) +#define __ALIGN_MASK(x, mask) __ALIGN_KERNEL_MASK((x), (mask)) +#define PTR_ALIGN(p, a) ((typeof(p))ALIGN((unsigned long)(p), (a))) +#define PTR_ALIGN_DOWN(p, a) ((typeof(p))ALIGN_DOWN((unsigned long)(p), (a))) +#define IS_ALIGNED(x, a) (((x) & ((typeof(x))(a) - 1)) == 0) + +#endif /* _LINUX_ALIGN_H */ diff --git a/tools/include/linux/bitmap.h b/tools/include/linux/bitmap.h index f3566ea0f932..8c6852dba04f 100644 --- a/tools/include/linux/bitmap.h +++ b/tools/include/linux/bitmap.h @@ -3,6 +3,7 @@ #define _TOOLS_LINUX_BITMAP_H #include <string.h> +#include <linux/align.h> #include <linux/bitops.h> #include <linux/find.h> #include <stdlib.h> @@ -126,7 +127,6 @@ static inline bool bitmap_and(unsigned long *dst, const unsigned long *src1, #define BITMAP_MEM_ALIGNMENT (8 * sizeof(unsigned long)) #endif #define BITMAP_MEM_MASK (BITMAP_MEM_ALIGNMENT - 1) -#define IS_ALIGNED(x, a) (((x) & ((typeof(x))(a) - 1)) == 0) static inline bool bitmap_equal(const unsigned long *src1, const unsigned long *src2, unsigned int nbits) -- 2.39.2.722.g9855ee24e9-goog

2 months

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[PATCH v3 00/13] Overhauling amx_test

by Mingwei Zhang

In this version, I have integrated Aaron's changes to the amx_test. In addition, we also integrated one fix patch for a kernel warning due to xsave address issue. Patch 1: Fix a host FPU kernel warning due to missing XTILEDATA in xinit. Patch 2-8: Overhaul amx_test. These patches were basically from v2. Patch 9-13: Overhaul amx_test from Aaron. I modified the changelog a little bit. v2 -> v3: - integrate Aaron's 5 commits with minor changes on commit message. - Add one fix patch for a kernel warning. v2: https://lore.kernel.org/all/20230214184606.510551-1-mizhang@google.com/ Aaron Lewis (5): KVM: selftests: x86: Assert that XTILE is XSAVE-enabled KVM: selftests: x86: Assert that both XTILE{CFG,DATA} are XSAVE-enabled KVM: selftests: x86: Remove redundant check that XSAVE is supported KVM: selftests: x86: Check that the palette table exists before using it KVM: selftests: x86: Check that XTILEDATA supports XFD Mingwei Zhang (8): x86/fpu/xstate: Avoid getting xstate address of init_fpstate if fpstate contains the component KVM: selftests: x86: Add a working xstate data structure KVM: selftests: x86: Fix an error in comment of amx_test KVM: selftests: x86: Add check of CR0.TS in the #NM handler in amx_test KVM: selftests: x86: Add the XFD check to IA32_XFD in #NM handler KVM: selftests: x86: Fix the checks to XFD_ERR using and operation KVM: selftests: x86: Enable checking on xcomp_bv in amx_test KVM: selftests: x86: Repeat the checking of xheader when IA32_XFD[XTILEDATA] is set in amx_test arch/x86/kernel/fpu/xstate.c | 10 ++- .../selftests/kvm/include/x86_64/processor.h | 14 ++++ tools/testing/selftests/kvm/x86_64/amx_test.c | 80 +++++++++---------- 3 files changed, 59 insertions(+), 45 deletions(-) -- 2.39.2.637.g21b0678d19-goog

2 months

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[PATCH v2 1/1] KVM: selftests: Adjust VM's initial stack address to align with SysV ABI spec

by Ackerley Tng

Align the guest stack to match calling sequence requirements in section "The Stack Frame" of the System V ABI AMD64 Architecture Processor Supplement, which requires the value (%rsp + 8), NOT %rsp, to be a multiple of 16 when control is transferred to the function entry point. I.e. in a normal function call, %rsp needs to be 16-byte aligned _before_ CALL, not after. This fixes unexpected #GPs in guest code when the compiler uses SSE instructions, e.g. to initialize memory, as many SSE instructions require memory operands (including those on the stack) to be 16-byte-aligned. Signed-off-by: Ackerley Tng <ackerleytng(a)google.com> --- This patch is a follow-up from discussions at https://lore.kernel.org/lkml/20230121001542.2472357-9-ackerleytng@google.co… v1 -> v2: Cleaned the patch up after getting comments from Sean in v1: https://lore.kernel.org/lkml/Y%2FfHLdvKHlK6D%2F1v@google.com/ Please also see https://lore.kernel.org/lkml/20230227174654.94641-1-ackerleytng@google.com/ regarding providing alignment macros for selftests. --- .../selftests/kvm/lib/x86_64/processor.c | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/kvm/lib/x86_64/processor.c b/tools/testing/selftests/kvm/lib/x86_64/processor.c index ae1e573d94ce..a0669d31bb85 100644 --- a/tools/testing/selftests/kvm/lib/x86_64/processor.c +++ b/tools/testing/selftests/kvm/lib/x86_64/processor.c @@ -5,6 +5,7 @@ * Copyright (C) 2018, Google LLC. */ +#include "linux/bitmap.h" #include "test_util.h" #include "kvm_util.h" #include "processor.h" @@ -573,6 +574,21 @@ struct kvm_vcpu *vm_arch_vcpu_add(struct kvm_vm *vm, uint32_t vcpu_id, DEFAULT_GUEST_STACK_VADDR_MIN, MEM_REGION_DATA); + stack_vaddr += DEFAULT_STACK_PGS * getpagesize(); + + /* + * Align stack to match calling sequence requirements in section "The + * Stack Frame" of the System V ABI AMD64 Architecture Processor + * Supplement, which requires the value (%rsp + 8) to be a multiple of + * 16 when control is transferred to the function entry point. + * + * If this code is ever used to launch a vCPU with 32-bit entry point it + * may need to subtract 4 bytes instead of 8 bytes. + */ + TEST_ASSERT(IS_ALIGNED(stack_vaddr, PAGE_SIZE), + "__vm_vaddr_alloc() did not provide a page-aligned address"); + stack_vaddr -= 8; + vcpu = __vm_vcpu_add(vm, vcpu_id); vcpu_init_cpuid(vcpu, kvm_get_supported_cpuid()); vcpu_setup(vm, vcpu); @@ -580,7 +596,7 @@ struct kvm_vcpu *vm_arch_vcpu_add(struct kvm_vm *vm, uint32_t vcpu_id, /* Setup guest general purpose registers */ vcpu_regs_get(vcpu, &regs); regs.rflags = regs.rflags | 0x2; - regs.rsp = stack_vaddr + (DEFAULT_STACK_PGS * getpagesize()); + regs.rsp = stack_vaddr; regs.rip = (unsigned long) guest_code; vcpu_regs_set(vcpu, &regs); -- 2.39.2.722.g9855ee24e9-goog

2 months

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[PATCH v1 0/2] KVM: s390: CMMA migration selftest and small bugfix

by Nico Boehr

Add a new selftest for CMMA migration. Also fix a small issue found during development of the test. Nico Boehr (2): KVM: s390: selftests: add selftest for CMMA migration KVM: s390: fix KVM_S390_GET_CMMA_BITS for GFNs in memslot holes arch/s390/kvm/kvm-s390.c | 4 + tools/testing/selftests/kvm/Makefile | 1 + tools/testing/selftests/kvm/s390x/cmma_test.c | 679 ++++++++++++++++++ 3 files changed, 684 insertions(+) create mode 100644 tools/testing/selftests/kvm/s390x/cmma_test.c -- 2.39.1

2 months

2
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[PATCH net-next v2 0/5] tls: implement key updates for TLS1.3

by Sabrina Dubroca

This adds support for receiving KeyUpdate messages (RFC 8446, 4.6.3 [1]). A sender transmits a KeyUpdate message and then changes its TX key. The receiver should react by updating its RX key before processing the next message. This patchset implements key updates by: 1. pausing decryption when a KeyUpdate message is received, to avoid attempting to use the old key to decrypt a record encrypted with the new key 2. returning -EKEYEXPIRED to syscalls that cannot receive the KeyUpdate message, until the rekey has been performed by userspace 3. passing the KeyUpdate message to userspace as a control message 4. allowing updates of the crypto_info via the TLS_TX/TLS_RX setsockopts This API has been tested with gnutls to make sure that it allows userspace libraries to implement key updates [2]. Thanks to Frantisek Krenzelok <fkrenzel(a)redhat.com> for providing the implementation in gnutls and testing the kernel patches. Note: in a future series, I'll clean up tls_set_sw_offload and eliminate the per-cipher copy-paste using tls_cipher_size_desc. [1] https://www.rfc-editor.org/rfc/rfc8446#section-4.6.3 [2] https://gitlab.com/gnutls/gnutls/-/merge_requests/1625 Changes in v2 use reverse xmas tree ordering in tls_set_sw_offload and do_tls_setsockopt_conf turn the alt_crypto_info into an else if selftests: add rekey_fail test Vadim suggested simplifying tls_set_sw_offload by copying the new crypto_info in the context in do_tls_setsockopt_conf, and then detecting the rekey in tls_set_sw_offload based on whether the iv was already set, but I don't think we can have a common error path (otherwise we'd free the aead etc on rekey failure). I decided instead to reorganize tls_set_sw_offload so that the context is unmodified until we know the rekey cannot fail. Some fields will be touched during the rekey, but they will be set to the same value they had before the rekey (prot->rec_seq_size, etc). Apoorv suggested to name the struct tls_crypto_info_keys "tls13" rather than "tls12". Since we're using the same crypto_info data for TLS1.3 as for 1.2, even if the tests only run for TLS1.3, I'd rather keep the "tls12" name, in case we end up adding a "tls13_crypto_info_aes_gcm_128" type in the future. Kuniyuki and Apoorv also suggested preventing rekeys on RX when we haven't received a matching KeyUpdate message, but I'd rather let userspace handle this and have a symmetric API between TX and RX on the kernel side. It's a bit of a foot-gun, but we can't really stop a broken userspace from rolling back the rec_seq on an existing crypto_info either, and that seems like a worse possible breakage. Sabrina Dubroca (5): tls: remove tls_context argument from tls_set_sw_offload tls: block decryption when a rekey is pending tls: implement rekey for TLS1.3 selftests: tls: add key_generation argument to tls_crypto_info_init selftests: tls: add rekey tests include/net/tls.h | 4 + net/tls/tls.h | 3 +- net/tls/tls_device.c | 2 +- net/tls/tls_main.c | 37 +++- net/tls/tls_sw.c | 189 +++++++++++++---- tools/testing/selftests/net/tls.c | 336 +++++++++++++++++++++++++++++- 6 files changed, 511 insertions(+), 60 deletions(-) -- 2.38.1

2 months

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Linux-kselftest-mirror February 2023