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 21 22 static inline bool guest_cpuid_has_xsave(struct kvm_vcpu *vcpu) 23 { 24 struct kvm_cpuid_entry2 *best; 25 26 best = kvm_find_cpuid_entry(vcpu, 1, 0); 27 return best && (best->ecx & bit(X86_FEATURE_XSAVE)); 28 } 29 30 static inline bool guest_cpuid_has_smep(struct kvm_vcpu *vcpu) 31 { 32 struct kvm_cpuid_entry2 *best; 33 34 best = kvm_find_cpuid_entry(vcpu, 7, 0); 35 return best && (best->ebx & bit(X86_FEATURE_SMEP)); 36 } 37 38 static inline bool guest_cpuid_has_fsgsbase(struct kvm_vcpu *vcpu) 39 { 40 struct kvm_cpuid_entry2 *best; 41 42 best = kvm_find_cpuid_entry(vcpu, 7, 0); 43 return best && (best->ebx & bit(X86_FEATURE_FSGSBASE)); 44 } 45 46 static inline bool guest_cpuid_has_osvw(struct kvm_vcpu *vcpu) 47 { 48 struct kvm_cpuid_entry2 *best; 49 50 best = kvm_find_cpuid_entry(vcpu, 0x80000001, 0); 51 return best && (best->ecx & bit(X86_FEATURE_OSVW)); 52 } 53 54 #endif 55