linux-kernel - [PATCH 0/3] perf test: Extend branch stack sampling test for arm64 BRBE

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: <20250813-james-brbe-test-v1-0-76a0144b73fb@linaro.org>
Date: Wed, 13 Aug 2025 14:38:48 +0100
From: James Clark <james.clark@...aro.org>
To: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>, 
 Arnaldo Carvalho de Melo <acme@...nel.org>, 
 Namhyung Kim <namhyung@...nel.org>, Mark Rutland <mark.rutland@....com>, 
 Alexander Shishkin <alexander.shishkin@...ux.intel.com>, 
 Jiri Olsa <jolsa@...nel.org>, Ian Rogers <irogers@...gle.com>, 
 Adrian Hunter <adrian.hunter@...el.com>, 
 Anshuman Khandual <anshuman.khandual@....com>, 
 Mark Rutland <mark.rutland@....com>, "Rob Herring (Arm)" <robh@...nel.org>, 
 Adam Young <admiyo@...amperecomputing.com>, Will Deacon <will@...nel.org>, 
 German Gomez <german.gomez@....com>
Cc: linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org, 
 James Clark <james.clark@...aro.org>
Subject: [PATCH 0/3] perf test: Extend branch stack sampling test for arm64
 BRBE

Refactor and add some extra tests for all platforms which were useful
when developing and testing the BRBE (Branch Buffer Extension) driver
[1]. Then lastly extend the test for new features which are BRBE
specific.

Tested on the Arm FVP RevC model [2] and Intel Raptor Lake.

[1]: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=58074a0fce66
[2]: https://developer.arm.com/Tools%20and%20Software/Fixed%20Virtual%20Platforms

Signed-off-by: James Clark <james.clark@...aro.org>
---
James Clark (3):
      perf test: Refactor brstack test
      perf test: Add syscall and address tests to brstack test
      perf test: Extend branch stack sampling test for Arm64 BRBE

 tools/perf/tests/builtin-test.c        |   1 +
 tools/perf/tests/shell/test_brstack.sh | 106 ++++++++++++++++++++++++++++++---
 tools/perf/tests/tests.h               |   1 +
 tools/perf/tests/workloads/Build       |   2 +
 tools/perf/tests/workloads/traploop.c  |  31 ++++++++++
 5 files changed, 132 insertions(+), 9 deletions(-)
---
base-commit: 6235ce77749f45cac27f630337e2fdf04e8a6c73
change-id: 20250811-james-brbe-test-f5a20dffd734

Best regards,
-- 
James Clark <james.clark@...aro.org>