KVM: x86: Expose fast short REP MOV for supported cpuid

For CPU supporting fast short REP MOV (XF86_FEATURE_FSRM) e.g Icelake,
Tigerlake, expose it in KVM supported cpuid as well.

Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Message-Id: <20200323092236.3703-1-zhenyuw@linux.intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index 990c76f..60ae93b 100644 (file)
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -338,7 +338,7 @@ void kvm_set_cpu_caps(void)
        kvm_cpu_cap_mask(CPUID_7_EDX,
                F(AVX512_4VNNIW) | F(AVX512_4FMAPS) | F(SPEC_CTRL) |
                F(SPEC_CTRL_SSBD) | F(ARCH_CAPABILITIES) | F(INTEL_STIBP) |
-               F(MD_CLEAR) | F(AVX512_VP2INTERSECT)
+               F(MD_CLEAR) | F(AVX512_VP2INTERSECT) | F(FSRM)
        );
 
        /* TSC_ADJUST and ARCH_CAPABILITIES are emulated in software. */