Intel's Extended Feature Disable (XFD) feature is an extension to the XSAVE feature that allows an operating system to enable a feature while preventing specific user threads from using the feature. A processor that supports XFD enumerates CPUID.(EAX=0DH,ECX=1):EAX[4] as 1. Signed-off-by: Jing Liu <jing2.liu@xxxxxxxxxxxxxxx> --- 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 83637a2ff605..04a73c395c71 100644 --- a/arch/x86/kvm/cpuid.c +++ b/arch/x86/kvm/cpuid.c @@ -437,7 +437,7 @@ void kvm_set_cpu_caps(void) ); kvm_cpu_cap_mask(CPUID_D_1_EAX, - F(XSAVEOPT) | F(XSAVEC) | F(XGETBV1) | F(XSAVES) + F(XSAVEOPT) | F(XSAVEC) | F(XGETBV1) | F(XSAVES) | F(XFD) ); kvm_cpu_cap_mask(CPUID_8000_0001_ECX, -- 2.18.4
