[PATCH v2] arm64: Restrict undef hook for cpufeature registers

Will Deacon will at kernel.org
Wed Jun 23 07:00:17 PDT 2021


On Mon, 17 May 2021 13:02:56 -0500, Rob Herring wrote:
> This commit modifies the mask of the mrs_hook declared in
> arch/arm64/kernel/cpufeatures.c which emulates only feature register
> access. This is necessary because this hook's mask was too large and
> thus masking any mrs instruction, even if not related to the emulated
> registers which made the pmu emulation inefficient.

Applied to arm64 (for-next/cpufeature), thanks!

[1/1] arm64: Restrict undef hook for cpufeature registers
      https://git.kernel.org/arm64/c/cf292e93f423

Cheers,
-- 
Will

https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev



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