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From: "Chang S. Bae" <chang.seok.bae@intel.com>
To: linux-kselftest@vger.kernel.org, shuah@kernel.org,
	linux-kernel@vger.kernel.org
Cc: dave.hansen@linux.intel.com, tglx@linutronix.de, bp@suse.de,
	chang.seok.bae@intel.com
Subject: [PATCH 0/2] selftests/x86: AMX-related test improvements
Date: Fri,  1 Apr 2022 15:10:12 -0700	[thread overview]
Message-ID: <20220401221014.13556-1-chang.seok.bae@intel.com> (raw)

A couple of test updates are included:

* With this 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/arch/x86/Kconfig#n2432
[2] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/admin-guide/kernel-parameters.txt#n5676
[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         | 42 +++++++++++++++++------
 tools/testing/selftests/x86/sigaltstack.c | 12 ++++++-
 2 files changed, 42 insertions(+), 12 deletions(-)


base-commit: f443e374ae131c168a065ea1748feac6b2e76613
-- 
2.17.1


             reply	other threads:[~2022-04-01 22:18 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-01 22:10 Chang S. Bae [this message]
2022-04-01 22:10 ` [PATCH 1/2] selftests/x86/signal: Adjust the test to the kernel's altstack check Chang S. Bae
2022-06-16 22:47   ` Shuah Khan
2022-04-01 22:10 ` [PATCH 2/2] selftests/x86/amx: Fix the test to avoid failure when AMX is unavailable Chang S. Bae
2022-06-16 22:54   ` Shuah Khan
2022-06-17 22:21     ` Chang S. Bae
2022-06-17 22:29       ` Shuah Khan
2022-06-16 22:55 ` [PATCH 0/2] selftests/x86: AMX-related test improvements Shuah Khan

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