arch/x86/kvm/cpuid.h

   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