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KVM: arm64: Add FEAT_NV3 detection

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Now that everything is in place to engage the FEAT_NV3 fast-path,
add the detection code to cpufeature.c.

Reviewed-by: Yuan Yao <yaoyuan@linux.alibaba.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://patch.msgid.link/20260730071022.296811-27-maz@kernel.org
Signed-off-by: Oliver Upton <oupton@kernel.org>
This commit is contained in:
Marc Zyngier 2026-07-30 08:10:19 +01:00 committed by Oliver Upton
parent 328ab9719e
commit a64183418a
1 changed files with 7 additions and 0 deletions
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7
arch/arm64/kernel/cpufeature.c
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@ -2627,6 +2627,13 @@ static const struct arm64_cpu_capabilities arm64_features[] = {
.matches = has_cpuid_feature,
ARM64_CPUID_FIELDS(ID_AA64MMFR4_EL1, NV_frac, NV2P1)
},
{
.desc = "FEAT_NV3",
.capability = ARM64_HAS_NV3,
.type = ARM64_CPUCAP_SYSTEM_FEATURE,
.matches = has_cpuid_feature,
ARM64_CPUID_FIELDS(ID_AA64MMFR4_EL1, NV_frac, NV3)
},
{
.capability = ARM64_HAS_32BIT_EL0_DO_NOT_USE,
.type = ARM64_CPUCAP_SYSTEM_FEATURE,