LXR linux/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
   6void kvm_update_cpuid(struct kvm_vcpu *vcpu);
   7struct kvm_cpuid_entry2 *kvm_find_cpuid_entry(struct kvm_vcpu *vcpu,
   8                                              u32 function, u32 index);
   9int kvm_dev_ioctl_get_supported_cpuid(struct kvm_cpuid2 *cpuid,
  10                                      struct kvm_cpuid_entry2 __user *entries);
  11int kvm_vcpu_ioctl_set_cpuid(struct kvm_vcpu *vcpu,
  12                             struct kvm_cpuid *cpuid,
  13                             struct kvm_cpuid_entry __user *entries);
  14int kvm_vcpu_ioctl_set_cpuid2(struct kvm_vcpu *vcpu,
  15                              struct kvm_cpuid2 *cpuid,
  16                              struct kvm_cpuid_entry2 __user *entries);
  17int kvm_vcpu_ioctl_get_cpuid2(struct kvm_vcpu *vcpu,
  18                              struct kvm_cpuid2 *cpuid,
  19                              struct kvm_cpuid_entry2 __user *entries);
  20void kvm_cpuid(struct kvm_vcpu *vcpu, u32 *eax, u32 *ebx, u32 *ecx, u32 *edx);
  21
  22
  23static 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
  34static 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
  42static 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
  50static 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
  58static 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
  66static 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