kselftest/arm64: Enforce actual ABI for SVE syscalls

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Currently syscall-abi permits the bits in Z registers not shared with the
V registers as well as all of the predicate registers to be preserved on
syscall but the actual implementation has always cleared them and our
documentation has now been updated to make that the documented ABI so
update the syscall-abi test to match.

Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20220829162502.886816-4-broonie@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

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Mark Brown 2022-08-29 17:25:02 +01:00 • committed by Catalin Marinas

parent bb7852c168

commit af3ce550a6

1 changed files with 38 additions and 19 deletions

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tools/testing/selftests/arm64/abi/syscall-abi.c

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