Commit dc311243 authored by Oliver Upton's avatar Oliver Upton
Browse files

arm64: Detect FEAT_XNX 



Detect the feature in anticipation of using it in KVM.

Reviewed-by: default avatarMarc Zyngier <maz@kernel.org>
Tested-by: default avatarMarc Zyngier <maz@kernel.org>
Link: https://msgid.link/20251124190158.177318-2-oupton@kernel.org


Signed-off-by: default avatarOliver Upton <oupton@kernel.org>
parent dcb6fa37

arch/arm64/kernel/cpufeature.c

+7 −0
Original line number Diff line number Diff line
@@ -3088,6 +3088,13 @@ static const struct arm64_cpu_capabilities arm64_features[] = { 
		.capability = ARM64_HAS_GICV5_LEGACY,

		.matches = test_has_gicv5_legacy,

	},

	{

		.desc = "XNX",

		.capability = ARM64_HAS_XNX,

		.type = ARM64_CPUCAP_SYSTEM_FEATURE,

		.matches = has_cpuid_feature,

		ARM64_CPUID_FIELDS(ID_AA64MMFR1_EL1, XNX, IMP)

	},

	{},

};

arch/arm64/tools/cpucaps

+1 −0
Original line number Diff line number Diff line
@@ -64,6 +64,7 @@ HAS_TLB_RANGE 
HAS_VA52

HAS_VIRT_HOST_EXTN

HAS_WFXT

HAS_XNX

HAFT

HW_DBM

KVM_HVHE