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
guest_cpuid_has_xsave(struct kvm_vcpu * vcpu)22 static inline bool guest_cpuid_has_xsave(struct kvm_vcpu *vcpu)
23 {
24 struct kvm_cpuid_entry2 *best;
25
26 if (!static_cpu_has(X86_FEATURE_XSAVE))
27 return 0;
28
29 best = kvm_find_cpuid_entry(vcpu, 1, 0);
30 return best && (best->ecx & bit(X86_FEATURE_XSAVE));
31 }
32
guest_cpuid_has_smep(struct kvm_vcpu * vcpu)33 static inline bool guest_cpuid_has_smep(struct kvm_vcpu *vcpu)
34 {
35 struct kvm_cpuid_entry2 *best;
36
37 best = kvm_find_cpuid_entry(vcpu, 7, 0);
38 return best && (best->ebx & bit(X86_FEATURE_SMEP));
39 }
40
guest_cpuid_has_fsgsbase(struct kvm_vcpu * vcpu)41 static inline bool guest_cpuid_has_fsgsbase(struct kvm_vcpu *vcpu)
42 {
43 struct kvm_cpuid_entry2 *best;
44
45 best = kvm_find_cpuid_entry(vcpu, 7, 0);
46 return best && (best->ebx & bit(X86_FEATURE_FSGSBASE));
47 }
48
guest_cpuid_has_osvw(struct kvm_vcpu * vcpu)49 static inline bool guest_cpuid_has_osvw(struct kvm_vcpu *vcpu)
50 {
51 struct kvm_cpuid_entry2 *best;
52
53 best = kvm_find_cpuid_entry(vcpu, 0x80000001, 0);
54 return best && (best->ecx & bit(X86_FEATURE_OSVW));
55 }
56
57 #endif
58