1 #ifndef ARCH_X86_KVM_CPUID_H 2 #define ARCH_X86_KVM_CPUID_H 3 4 #include "x86.h" 5 6 void kvm_update_cpuid(struct kvm_vcpu *vcpu); 7 struct kvm_cpuid_entry2 *kvm_find_cpuid_entry(struct kvm_vcpu *vcpu, 8 u32 function, u32 index); 9 int kvm_dev_ioctl_get_supported_cpuid(struct kvm_cpuid2 *cpuid, 10 struct kvm_cpuid_entry2 __user *entries); 11 int kvm_vcpu_ioctl_set_cpuid(struct kvm_vcpu *vcpu, 12 struct kvm_cpuid *cpuid, 13 struct kvm_cpuid_entry __user *entries); 14 int kvm_vcpu_ioctl_set_cpuid2(struct kvm_vcpu *vcpu, 15 struct kvm_cpuid2 *cpuid, 16 struct kvm_cpuid_entry2 __user *entries); 17 int kvm_vcpu_ioctl_get_cpuid2(struct kvm_vcpu *vcpu, 18 struct kvm_cpuid2 *cpuid, 19 struct kvm_cpuid_entry2 __user *entries); 20 void kvm_cpuid(struct kvm_vcpu *vcpu, u32 *eax, u32 *ebx, u32 *ecx, u32 *edx); 21 22 23 static inline bool guest_cpuid_has_xsave(struct kvm_vcpu *vcpu) 24 { 25 struct kvm_cpuid_entry2 *best; 26 27 best = kvm_find_cpuid_entry(vcpu, 1, 0); 28 return best && (best->ecx & bit(X86_FEATURE_XSAVE)); 29 } 30 31 static inline bool guest_cpuid_has_smep(struct kvm_vcpu *vcpu) 32 { 33 struct kvm_cpuid_entry2 *best; 34 35 best = kvm_find_cpuid_entry(vcpu, 7, 0); 36 return best && (best->ebx & bit(X86_FEATURE_SMEP)); 37 } 38 39 static inline bool guest_cpuid_has_fsgsbase(struct kvm_vcpu *vcpu) 40 { 41 struct kvm_cpuid_entry2 *best; 42 43 best = kvm_find_cpuid_entry(vcpu, 7, 0); 44 return best && (best->ebx & bit(X86_FEATURE_FSGSBASE)); 45 } 46 47 static inline bool guest_cpuid_has_osvw(struct kvm_vcpu *vcpu) 48 { 49 struct kvm_cpuid_entry2 *best; 50 51 best = kvm_find_cpuid_entry(vcpu, 0x80000001, 0); 52 return best && (best->ecx & bit(X86_FEATURE_OSVW)); 53 } 54 55 static inline bool guest_cpuid_has_pcid(struct kvm_vcpu *vcpu) 56 { 57 struct kvm_cpuid_entry2 *best; 58 59 best = kvm_find_cpuid_entry(vcpu, 1, 0); 60 return best && (best->ecx & bit(X86_FEATURE_PCID)); 61 } 62 63 #endif 64