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

Robert Hoo
2022-10-17T07:05:53Z

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 --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index b935b3b04a7e..89bcac3e4ac4 100644
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -636,7 +636,7 @@ 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,
--
2.31.1