Re: [PATCH] arm64/boot: Don't set PMUv3p9 FGT2 bits without PMUv3

[Will Deacon]

On Wed, 30 Sep 2026 13:12:12 +0100, Fuad Tabba wrote:
> On a CPU with FGT2 and an IMPLEMENTATION DEFINED PMU (PMUVer 0b1111),
> __init_el2_fgt2 sets the PMUv3p9 bits in HDFGRTR2_EL2 and HDFGWTR2_EL2,
> which are RES0 there. The macro only checks that PMUVer is at least
> PMUv3p9, and 0b1111 passes.
> 
> Exclude 0b1111 before the compare, as __init_el2_debug does.
> 
> [...]

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

[1/1] arm64/boot: Don't set PMUv3p9 FGT2 bits without PMUv3
      https://git.kernel.org/arm64/c/b52ef450139f

Cheers,
-- 
Will

https://fixes.arm64.dev
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