On Wed, 06 Nov 2024 16:04:48 +0000, Mark Rutland wrote:
> SMCCCv1.3 added a hint bit which callers can set in an SMCCC function ID
> (AKA "FID") to indicate that it is acceptable for the SMCCC
> implementation to discard SVE and/or SME state over a specific SMCCC
> call. The kernel support for using this hint is broken and SMCCC calls
> may clobber the SVE and/or SME state of arbitrary tasks, though FPSIMD
> state is unaffected.
>
> [...]
Applied to arm64 (for-next/fixes), thanks!
[1/1] arm64: smccc: Remove broken support for SMCCCv1.3 SVE discard hint
https://git.kernel.org/arm64/c/8c462d56487e
Cheers,
--
Will
https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev
