[RFC PATCH v2 00/45] arm64: Add support for FEAT_NMI

[Will Deacon]

On Mon, 27 Jul 2026 17:34:08 +0100, Vladimir Murzin wrote:
> FEAT_NMI provides an architected mechanism for supporting non-maskable
> interrupts (NMIs) and less-masked interrupts (LMIs).
> 
> Since we already support pseudo-NMIs via priority masking, introducing
> another flavour of NMI on top of the existing infrastructure could
> easily become messy, making the code harder to follow and reason
> about.
> 
> [...]

Applied patches 8 and 9 to arm64 (for-next/nmi), thanks!

[08/45] irqchip/gic-v3: make the unmasking of pseudo-NMIs explicit when handling IRQs
        https://git.kernel.org/arm64/c/067f029c6463
[09/45] arm64: entry: Avoid unnecessary local_irq_disable() on kernel exit
        https://git.kernel.org/arm64/c/39aebe0e8946

This should fix the pNMI splat reported by Breno at:

  https://lore.kernel.org/all/20260807-arm64_fix-v1-1-d069ccf9d71b@debian.org/

Cheers,
-- 
Will

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