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Commit a0aea130 authored by Robert Hoo's avatar Robert Hoo Committed by Paolo Bonzini
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KVM: x86: Add CPUID support for new instruction WBNOINVD 



Signed-off-by: default avatarRobert Hoo <robert.hu@linux.intel.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent 57d5edfe

arch/x86/include/asm/cpufeatures.h

+1 −0
Original line number Diff line number Diff line
@@ -281,6 +281,7 @@ 
#define X86_FEATURE_CLZERO		(13*32+ 0) /* CLZERO instruction */

#define X86_FEATURE_IRPERF		(13*32+ 1) /* Instructions Retired Count */

#define X86_FEATURE_XSAVEERPTR		(13*32+ 2) /* Always save/restore FP error pointers */

#define X86_FEATURE_WBNOINVD		(13*32+ 9) /* WBNOINVD instruction */

#define X86_FEATURE_AMD_IBPB		(13*32+12) /* "" Indirect Branch Prediction Barrier */

#define X86_FEATURE_AMD_IBRS		(13*32+14) /* "" Indirect Branch Restricted Speculation */

#define X86_FEATURE_AMD_STIBP		(13*32+15) /* "" Single Thread Indirect Branch Predictors */

arch/x86/kvm/cpuid.c

+1 −1
Original line number Diff line number Diff line
@@ -378,7 +378,7 @@ static inline int __do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function, 


	/* cpuid 0x80000008.ebx */

	const u32 kvm_cpuid_8000_0008_ebx_x86_features =

		F(AMD_IBPB) | F(AMD_IBRS) | F(AMD_SSBD) | F(VIRT_SSBD) |

		F(WBNOINVD) | F(AMD_IBPB) | F(AMD_IBRS) | F(AMD_SSBD) | F(VIRT_SSBD) |

		F(AMD_SSB_NO) | F(AMD_STIBP);



	/* cpuid 0xC0000001.edx */