arm64: cpufeatures: Only check for NV1 if NV is present

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We handle ID_AA64MMFR4_EL1.E2H0 being 0 as NV1 being present.
However, this is only true if FEAT_NV is implemented.

Add the required check to has_nv1(), avoiding spuriously advertising
NV1 on HW that doesn't have NV at all.

Fixes: da9af5071b ("arm64: cpufeature: Detect HCR_EL2.NV1 being RES0")
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20240212144736.1933112-3-maz@kernel.org
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>

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Marc Zyngier 2024-02-12 14:47:36 +00:00 • committed by Oliver Upton

parent 87b8cf2387

commit 3673d01a2f

1 changed files with 3 additions and 2 deletions

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arch/arm64/kernel/cpufeature.c

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