[PATCH v2 0/2] efi/arm64: Simplify SVE/SME state preserve/restore

Catalin Marinas catalin.marinas at arm.com
Mon Dec 15 10:16:38 PST 2025


On Sat, 06 Dec 2025 20:01:15 +0100, Ard Biesheuvel wrote:
> The EFI specific SVE/SME state preserve/restore logic is unneeded, and
> can be removed. Patch #1 adds some lkdtm test cases to emulate the
> condition under which this code might be called.
> 
> v2:
> - Document that BUG_IN_HARDIRQ and PANIC_IN_HARDIRQ will crash the
>   system.
> - Add Kees's R-b
> - Rebase onto torvalds's tree of today so it is expected to apply
>   cleanly to -rc1
> 
> [...]

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

(not really a fix but postponed applying it for -rc1 due to conflicts)

[1/2] lkdtm/bugs: Add cases for BUG and PANIC occurring in hardirq context
      https://git.kernel.org/arm64/c/eb972eab0794
[2/2] arm64/efi: Remove unneeded SVE/SME fallback preserve/store handling
      https://git.kernel.org/arm64/c/63de2b3859ba

-- 
Catalin



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