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
guest_cpuid_has_xsave(struct kvm_vcpu * vcpu)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
guest_cpuid_has_tsc_adjust(struct kvm_vcpu * vcpu)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
guest_cpuid_has_smep(struct kvm_vcpu * vcpu)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
guest_cpuid_has_fsgsbase(struct kvm_vcpu * vcpu)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
guest_cpuid_has_osvw(struct kvm_vcpu * vcpu)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
guest_cpuid_has_pcid(struct kvm_vcpu * vcpu)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