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arm64: Add FEAT_NV2p1 detection

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Add the necessary NV2p1 probing to the cpufeature infrastructure.

Reviewed-by: Yuan Yao <yaoyuan@linux.alibaba.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://patch.msgid.link/20260730071022.296811-13-maz@kernel.org
Signed-off-by: Oliver Upton <oupton@kernel.org>
This commit is contained in:
Marc Zyngier 2026-07-30 08:10:05 +01:00 committed by Oliver Upton
parent 4eb776d0b9
commit 1f4177ea49
1 changed files with 7 additions and 0 deletions
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7
arch/arm64/kernel/cpufeature.c
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@ -2620,6 +2620,13 @@ static const struct arm64_cpu_capabilities arm64_features[] = {
{ /* Sentinel */ }
},
},
{
.desc = "FEAT_NV2p1",
.capability = ARM64_HAS_NV2P1,
.type = ARM64_CPUCAP_SYSTEM_FEATURE,
.matches = has_cpuid_feature,
ARM64_CPUID_FIELDS(ID_AA64MMFR4_EL1, NV_frac, NV2P1)
},
{
.capability = ARM64_HAS_32BIT_EL0_DO_NOT_USE,
.type = ARM64_CPUCAP_SYSTEM_FEATURE,