diff options
| author | Oliver Upton <oupton@kernel.org> | 2025-11-24 11:01:43 -0800 |
|---|---|---|
| committer | Oliver Upton <oupton@kernel.org> | 2025-11-24 14:24:44 -0800 |
| commit | dc31124379b69a758af740bbd981e9e9f04a61d5 (patch) | |
| tree | d5b0ad1a8984da16bc8e43bc6f1ea02c22c97664 | |
| parent | dcb6fa37fd7bc9c3d2b066329b0d27dedf8becaa (diff) | |
arm64: Detect FEAT_XNX
Detect the feature in anticipation of using it in KVM.
Reviewed-by: Marc Zyngier <maz@kernel.org>
Tested-by: Marc Zyngier <maz@kernel.org>
Link: https://msgid.link/20251124190158.177318-2-oupton@kernel.org
Signed-off-by: Oliver Upton <oupton@kernel.org>
| -rw-r--r-- | arch/arm64/kernel/cpufeature.c | 7 | ||||
| -rw-r--r-- | arch/arm64/tools/cpucaps | 1 |
2 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c index 5ed401ff79e3..aa3ecae252d3 100644 --- a/arch/arm64/kernel/cpufeature.c +++ b/arch/arm64/kernel/cpufeature.c @@ -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) + }, {}, }; diff --git a/arch/arm64/tools/cpucaps b/arch/arm64/tools/cpucaps index 1b32c1232d28..ee74199107d3 100644 --- a/arch/arm64/tools/cpucaps +++ b/arch/arm64/tools/cpucaps @@ -64,6 +64,7 @@ HAS_TLB_RANGE HAS_VA52 HAS_VIRT_HOST_EXTN HAS_WFXT +HAS_XNX HAFT HW_DBM KVM_HVHE |