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[v2,9/9] KVM: x86: LAM: Expose LAM CPUID to user space VMM

Message ID 20221110132848.330793-10-robert.hu@linux.intel.com (mailing list archive)
State New, archived
Headers show
Series Linear Address Masking (LAM) KVM Enabling | expand

Commit Message

Robert Hoo Nov. 10, 2022, 1:28 p.m. UTC 
LAM feature is enumerated by (EAX=07H, ECX=01H):EAX.LAM[bit26].

Signed-off-by: Robert Hoo <robert.hu@linux.intel.com>
Reviewed-by: Jingqi Liu <jingqi.liu@intel.com>
---
 arch/x86/kvm/cpuid.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index 02baeb936974..49592c699272 100644
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -657,7 +657,7 @@  void kvm_set_cpu_caps(void)
 		kvm_cpu_cap_set(X86_FEATURE_SPEC_CTRL_SSBD);
 
 	kvm_cpu_cap_mask(CPUID_7_1_EAX,
-		F(AVX_VNNI) | F(AVX512_BF16)
+		F(AVX_VNNI) | F(AVX512_BF16) | F(LAM)
 	);
 
 	kvm_cpu_cap_mask(CPUID_D_1_EAX,