arm64/sysreg: Add definitions for architected GCS caps

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The architecture defines a format for guarded control stack caps, used
to mark the top of an unused GCS in order to limit the potential for
exploitation via stack switching. Add definitions associated with these.

Reviewed-by: Thiago Jung Bauermann <thiago.bauermann@linaro.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20241001-arm64-gcs-v13-8-222b78d87eee@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

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Mark Brown 2024-10-01 23:58:47 +01:00 • committed by Catalin Marinas

parent 7058bf87cd

commit ce0641d48d

1 changed files with 20 additions and 0 deletions

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arch/arm64/include/asm/sysreg.h

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