[PATCH 0/2] Improve POE handling for uaccess
Will Deacon
will at kernel.org
Fri Jul 4 10:44:14 PDT 2025
On Thu, 19 Jun 2025 17:00:40 +0100, Kevin Brodsky wrote:
> This short series attempts to approach POE (Overlay) faults consistently
> w.r.t. uaccess. We currently assume that spurious Overlay faults are
> handled by retrying the access [1], but this isn't the case.
>
> Patch 1 ensures that spurious Overlay faults are indeed ignored. This
> being done, it typically isn't worth using an ISB when writing to
> POR_EL0. Patch 2 removes the remaining ISB in the signal handling code.
>
> [...]
Applied first patch to arm64 (for-next/fixes), thanks!
[1/2] arm64: poe: Handle spurious Overlay faults
https://git.kernel.org/arm64/c/22f3a4f60859
Cheers,
--
Will
https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev
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