arm64/signal: Include TPIDR2 in the signal context

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Add a new signal frame record for TPIDR2 using the same format as we
already use for ESR with different magic, a header with the value from the
register appended as the only data. If SME is supported then this record is
always included.

Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Szabolcs Nagy <szabolcs.nagy@arm.com>
Link: https://lore.kernel.org/r/20221208-arm64-tpidr2-sig-v3-2-c77c6c8775f4@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

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Mark Brown 2022-12-27 14:20:41 +00:00 • committed by Catalin Marinas

parent 17d0c4a27b

commit 39e5449928

2 changed files with 67 additions and 0 deletions

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arch/arm64/include/uapi/asm/sigcontext.h

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59

arch/arm64/kernel/signal.c

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