[PATCH v2 00/10] kselftest/arm64: EXTRA_CONTEXT related fixes

From: Mark Brown <broonie@kernel.org>
To: Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will@kernel.org>, Shuah Khan <shuah@kernel.org>,
	Shuah Khan <skhan@linuxfoundation.org>
Cc: linux-arm-kernel@lists.infradead.org,
	linux-kselftest@vger.kernel.org, Mark Brown <broonie@kernel.org>
Subject: [PATCH v2 00/10] kselftest/arm64: EXTRA_CONTEXT related fixes
Date: Mon, 29 Aug 2022 17:06:53 +0100	[thread overview]
Message-ID: <20220829160703.874492-1-broonie@kernel.org> (raw)

The arm64 architecture originally made the signal context a fixed size
structure containing a linked list of records with the various kinds of
register and other state which may be present. When SVE was implemented
it was realised that it supported implementations with more state than
could fit in that structure so a new record type EXTRA_CONTEXT was
introduced allowing the signal context to be extended beyond the
original size. Unfortunately the signal handling tests can not cope with
these EXTRA_CONTEXT records at all - some support was implemented but it
simply never worked.

v2:
 - Rebase onto v6.0-rc3

Mark Brown (10):
  kselftest/arm64: Enumerate SME rather than SVE vector lengths for
    za_regs
  kselftest/arm64: Validate signal ucontext in place
  kselftest/arm64: Fix validatation termination record after
    EXTRA_CONTEXT
  kselftest/arm64: Fix validation of EXTRA_CONTEXT signal context
    location
  kselftest/arm64: Remove unneeded protype for validate_extra_context()
  kselftest/arm64: Only validate each signal context once
  kselftest/arm64: Validate contents of EXTRA_CONTEXT blocks
  kselftest/arm64: Preserve any EXTRA_CONTEXT in handle_signal_copyctx()
  kselftest/arm64: Allow larger buffers in get_signal_context()
  kselftest/arm64: Include larger SVE and SME VLs in signal tests

 .../arm64/signal/test_signals_utils.c         | 59 +++++++++++++++++--
 .../arm64/signal/test_signals_utils.h         |  5 +-
 .../testcases/fake_sigreturn_bad_magic.c      |  2 +-
 .../testcases/fake_sigreturn_bad_size.c       |  2 +-
 .../fake_sigreturn_bad_size_for_magic0.c      |  2 +-
 .../fake_sigreturn_duplicated_fpsimd.c        |  2 +-
 .../testcases/fake_sigreturn_misaligned_sp.c  |  2 +-
 .../testcases/fake_sigreturn_missing_fpsimd.c |  2 +-
 .../testcases/fake_sigreturn_sme_change_vl.c  |  2 +-
 .../testcases/fake_sigreturn_sve_change_vl.c  |  2 +-
 .../selftests/arm64/signal/testcases/sme_vl.c |  2 +-
 .../arm64/signal/testcases/ssve_regs.c        | 25 +++-----
 .../arm64/signal/testcases/sve_regs.c         | 23 +++-----
 .../selftests/arm64/signal/testcases/sve_vl.c |  2 +-
 .../arm64/signal/testcases/testcases.c        | 48 +++++++++++----
 .../arm64/signal/testcases/testcases.h        |  9 ++-
 .../arm64/signal/testcases/za_regs.c          | 28 ++++-----
 17 files changed, 137 insertions(+), 80 deletions(-)

base-commit: b90cb1053190353cc30f0fef0ef1f378ccc063c5
-- 
2.30.2