linux-kernel - [PATCH 0/3] selftests: Fix cpuid / vendor checking build issues

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20240813104515.19152-1-ilpo.jarvinen@linux.intel.com>
Date: Tue, 13 Aug 2024 13:45:12 +0300
From: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
To: Muhammad Usama Anjum <usama.anjum@...labora.com>,
	Shuah Khan <shuah@...nel.org>,
	Reinette Chatre <reinette.chatre@...el.com>,
	linux-kselftest@...r.kernel.org
Cc: linux-kernel@...r.kernel.org,
	Shaopeng Tan <tan.shaopeng@...fujitsu.com>,
	Fenghua Yu <fenghua.yu@...el.com>,
	Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
Subject: [PATCH 0/3] selftests: Fix cpuid / vendor checking build issues

First, generalize resctrl selftest non-contiguous CAT check to not
assume non-AMD vendor implies Intel. Second, improve kselftest common
parts and resctrl selftest such that the use of __cpuid_count() does
not lead into a build failure (happens at least on ARM).

The last patch might still require some work on which symbol the
conditional in kselftest.h is implemented. I could not find any
pre-existing one that could be used. Perhaps somebody who's more
familiar with the kselftest build system has a better suggestion on
which symbol the logic should be based at?

Ilpo Järvinen (3):
  selftests/resctrl: Generalize non-contiguous CAT check
  selftests/resctrl: Always initialize ecx to avoid build warnings
  [RFC] kselftest: Provide __cpuid_count() stub on non-x86 archs

 tools/testing/selftests/kselftest.h        |  6 +++++
 tools/testing/selftests/lib.mk             |  4 ++++
 tools/testing/selftests/resctrl/cat_test.c | 28 +++++++++++++---------
 3 files changed, 27 insertions(+), 11 deletions(-)

-- 
2.39.2