On 2/9/2023 10:40 AM, Robert Hoo wrote:
LAM feature is enumerated by (EAX=07H, ECX=01H):EAX.LAM[bit26].
Signed-off-by: Robert Hoo <robert.hu@xxxxxxxxxxxxxxx>
Reviewed-by: Jingqi Liu <jingqi.liu@xxxxxxxxx>
---
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 b14653b61470..79f45cbe587e 100644
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -664,7 +664,7 @@ void kvm_set_cpu_caps(void)
kvm_cpu_cap_mask(CPUID_7_1_EAX,
F(AVX_VNNI) | F(AVX512_BF16) | F(CMPCCXADD) | F(AMX_FP16) |
- F(AVX_IFMA)
+ F(AVX_IFMA) | F(LAM)
Do we allow to expose the LAM capability to guest when host kernel
disabled LAM feature (e.g. via clearcpuid)?
May be it should be handled similarly as LA57.
);
kvm_cpu_cap_init_kvm_defined(CPUID_7_1_EDX,
