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 if (!static_cpu_has(X86_FEATURE_XSAVE)) 28 return 0; 29 30 best = kvm_find_cpuid_entry(vcpu, 1, 0); 31 return best && (best->ecx & bit(X86_FEATURE_XSAVE)); 32 } 33 34 static inline bool guest_cpuid_has_tsc_adjust(struct kvm_vcpu *vcpu) 35 { 36 struct kvm_cpuid_entry2 *best; 37 38 best = kvm_find_cpuid_entry(vcpu, 7, 0); 39 return best && (best->ebx & bit(X86_FEATURE_TSC_ADJUST)); 40 } 41 42 static inline bool guest_cpuid_has_smep(struct kvm_vcpu *vcpu) 43 { 44 struct kvm_cpuid_entry2 *best; 45 46 best = kvm_find_cpuid_entry(vcpu, 7, 0); 47 return best && (best->ebx & bit(X86_FEATURE_SMEP)); 48 } 49 50 static inline bool guest_cpuid_has_fsgsbase(struct kvm_vcpu *vcpu) 51 { 52 struct kvm_cpuid_entry2 *best; 53 54 best = kvm_find_cpuid_entry(vcpu, 7, 0); 55 return best && (best->ebx & bit(X86_FEATURE_FSGSBASE)); 56 } 57 58 static inline bool guest_cpuid_has_osvw(struct kvm_vcpu *vcpu) 59 { 60 struct kvm_cpuid_entry2 *best; 61 62 best = kvm_find_cpuid_entry(vcpu, 0x80000001, 0); 63 return best && (best->ecx & bit(X86_FEATURE_OSVW)); 64 } 65 66 static inline bool guest_cpuid_has_pcid(struct kvm_vcpu *vcpu) 67 { 68 struct kvm_cpuid_entry2 *best; 69 70 best = kvm_find_cpuid_entry(vcpu, 1, 0); 71 return best && (best->ecx & bit(X86_FEATURE_PCID)); 72 } 73 74 #endif 75