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
   6int 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_cpuid(struct kvm_cpuid2 *cpuid,
  10                            struct kvm_cpuid_entry2 __user *entries,
  11                            unsigned int type);
  12int kvm_vcpu_ioctl_set_cpuid(struct kvm_vcpu *vcpu,
  13                             struct kvm_cpuid *cpuid,
  14                             struct kvm_cpuid_entry __user *entries);
  15int kvm_vcpu_ioctl_set_cpuid2(struct kvm_vcpu *vcpu,
  16                              struct kvm_cpuid2 *cpuid,
  17                              struct kvm_cpuid_entry2 __user *entries);
  18int kvm_vcpu_ioctl_get_cpuid2(struct kvm_vcpu *vcpu,
  19                              struct kvm_cpuid2 *cpuid,
  20                              struct kvm_cpuid_entry2 __user *entries);
  21void kvm_cpuid(struct kvm_vcpu *vcpu, u32 *eax, u32 *ebx, u32 *ecx, u32 *edx);
  22
  23int cpuid_query_maxphyaddr(struct kvm_vcpu *vcpu);
  24
  25static inline int cpuid_maxphyaddr(struct kvm_vcpu *vcpu)
  26{
  27        return vcpu->arch.maxphyaddr;
  28}
  29
  30static inline bool guest_cpuid_has_xsave(struct kvm_vcpu *vcpu)
  31{
  32        struct kvm_cpuid_entry2 *best;
  33
  34        if (!static_cpu_has(X86_FEATURE_XSAVE))
  35                return false;
  36
  37        best = kvm_find_cpuid_entry(vcpu, 1, 0);
  38        return best && (best->ecx & bit(X86_FEATURE_XSAVE));
  39}
  40
  41static inline bool guest_cpuid_has_tsc_adjust(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_TSC_ADJUST));
  47}
  48
  49static inline bool guest_cpuid_has_smep(struct kvm_vcpu *vcpu)
  50{
  51        struct kvm_cpuid_entry2 *best;
  52
  53        best = kvm_find_cpuid_entry(vcpu, 7, 0);
  54        return best && (best->ebx & bit(X86_FEATURE_SMEP));
  55}
  56
  57static inline bool guest_cpuid_has_smap(struct kvm_vcpu *vcpu)
  58{
  59        struct kvm_cpuid_entry2 *best;
  60
  61        best = kvm_find_cpuid_entry(vcpu, 7, 0);
  62        return best && (best->ebx & bit(X86_FEATURE_SMAP));
  63}
  64
  65static inline bool guest_cpuid_has_fsgsbase(struct kvm_vcpu *vcpu)
  66{
  67        struct kvm_cpuid_entry2 *best;
  68
  69        best = kvm_find_cpuid_entry(vcpu, 7, 0);
  70        return best && (best->ebx & bit(X86_FEATURE_FSGSBASE));
  71}
  72
  73static inline bool guest_cpuid_has_longmode(struct kvm_vcpu *vcpu)
  74{
  75        struct kvm_cpuid_entry2 *best;
  76
  77        best = kvm_find_cpuid_entry(vcpu, 0x80000001, 0);
  78        return best && (best->edx & bit(X86_FEATURE_LM));
  79}
  80
  81static inline bool guest_cpuid_has_osvw(struct kvm_vcpu *vcpu)
  82{
  83        struct kvm_cpuid_entry2 *best;
  84
  85        best = kvm_find_cpuid_entry(vcpu, 0x80000001, 0);
  86        return best && (best->ecx & bit(X86_FEATURE_OSVW));
  87}
  88
  89static inline bool guest_cpuid_has_pcid(struct kvm_vcpu *vcpu)
  90{
  91        struct kvm_cpuid_entry2 *best;
  92
  93        best = kvm_find_cpuid_entry(vcpu, 1, 0);
  94        return best && (best->ecx & bit(X86_FEATURE_PCID));
  95}
  96
  97static inline bool guest_cpuid_has_x2apic(struct kvm_vcpu *vcpu)
  98{
  99        struct kvm_cpuid_entry2 *best;
 100
 101        best = kvm_find_cpuid_entry(vcpu, 1, 0);
 102        return best && (best->ecx & bit(X86_FEATURE_X2APIC));
 103}
 104
 105static inline bool guest_cpuid_is_amd(struct kvm_vcpu *vcpu)
 106{
 107        struct kvm_cpuid_entry2 *best;
 108
 109        best = kvm_find_cpuid_entry(vcpu, 0, 0);
 110        return best && best->ebx == X86EMUL_CPUID_VENDOR_AuthenticAMD_ebx;
 111}
 112
 113static inline bool guest_cpuid_has_gbpages(struct kvm_vcpu *vcpu)
 114{
 115        struct kvm_cpuid_entry2 *best;
 116
 117        best = kvm_find_cpuid_entry(vcpu, 0x80000001, 0);
 118        return best && (best->edx & bit(X86_FEATURE_GBPAGES));
 119}
 120
 121static inline bool guest_cpuid_has_rtm(struct kvm_vcpu *vcpu)
 122{
 123        struct kvm_cpuid_entry2 *best;
 124
 125        best = kvm_find_cpuid_entry(vcpu, 7, 0);
 126        return best && (best->ebx & bit(X86_FEATURE_RTM));
 127}
 128
 129static inline bool guest_cpuid_has_mpx(struct kvm_vcpu *vcpu)
 130{
 131        struct kvm_cpuid_entry2 *best;
 132
 133        best = kvm_find_cpuid_entry(vcpu, 7, 0);
 134        return best && (best->ebx & bit(X86_FEATURE_MPX));
 135}
 136#endif
 137