228 lines
5.5 KiB
C
228 lines
5.5 KiB
C
#ifndef ARCH_X86_KVM_CPUID_H
|
|
#define ARCH_X86_KVM_CPUID_H
|
|
|
|
#include "x86.h"
|
|
#include <asm/cpu.h>
|
|
|
|
int kvm_update_cpuid(struct kvm_vcpu *vcpu);
|
|
bool kvm_mpx_supported(void);
|
|
struct kvm_cpuid_entry2 *kvm_find_cpuid_entry(struct kvm_vcpu *vcpu,
|
|
u32 function, u32 index);
|
|
int kvm_dev_ioctl_get_cpuid(struct kvm_cpuid2 *cpuid,
|
|
struct kvm_cpuid_entry2 __user *entries,
|
|
unsigned int type);
|
|
int kvm_vcpu_ioctl_set_cpuid(struct kvm_vcpu *vcpu,
|
|
struct kvm_cpuid *cpuid,
|
|
struct kvm_cpuid_entry __user *entries);
|
|
int kvm_vcpu_ioctl_set_cpuid2(struct kvm_vcpu *vcpu,
|
|
struct kvm_cpuid2 *cpuid,
|
|
struct kvm_cpuid_entry2 __user *entries);
|
|
int kvm_vcpu_ioctl_get_cpuid2(struct kvm_vcpu *vcpu,
|
|
struct kvm_cpuid2 *cpuid,
|
|
struct kvm_cpuid_entry2 __user *entries);
|
|
void kvm_cpuid(struct kvm_vcpu *vcpu, u32 *eax, u32 *ebx, u32 *ecx, u32 *edx);
|
|
|
|
int cpuid_query_maxphyaddr(struct kvm_vcpu *vcpu);
|
|
|
|
static inline int cpuid_maxphyaddr(struct kvm_vcpu *vcpu)
|
|
{
|
|
return vcpu->arch.maxphyaddr;
|
|
}
|
|
|
|
static inline bool guest_cpuid_has_xsave(struct kvm_vcpu *vcpu)
|
|
{
|
|
struct kvm_cpuid_entry2 *best;
|
|
|
|
if (!static_cpu_has(X86_FEATURE_XSAVE))
|
|
return false;
|
|
|
|
best = kvm_find_cpuid_entry(vcpu, 1, 0);
|
|
return best && (best->ecx & bit(X86_FEATURE_XSAVE));
|
|
}
|
|
|
|
static inline bool guest_cpuid_has_mtrr(struct kvm_vcpu *vcpu)
|
|
{
|
|
struct kvm_cpuid_entry2 *best;
|
|
|
|
best = kvm_find_cpuid_entry(vcpu, 1, 0);
|
|
return best && (best->edx & bit(X86_FEATURE_MTRR));
|
|
}
|
|
|
|
static inline bool guest_cpuid_has_tsc_adjust(struct kvm_vcpu *vcpu)
|
|
{
|
|
struct kvm_cpuid_entry2 *best;
|
|
|
|
best = kvm_find_cpuid_entry(vcpu, 7, 0);
|
|
return best && (best->ebx & bit(X86_FEATURE_TSC_ADJUST));
|
|
}
|
|
|
|
static inline bool guest_cpuid_has_smep(struct kvm_vcpu *vcpu)
|
|
{
|
|
struct kvm_cpuid_entry2 *best;
|
|
|
|
best = kvm_find_cpuid_entry(vcpu, 7, 0);
|
|
return best && (best->ebx & bit(X86_FEATURE_SMEP));
|
|
}
|
|
|
|
static inline bool guest_cpuid_has_smap(struct kvm_vcpu *vcpu)
|
|
{
|
|
struct kvm_cpuid_entry2 *best;
|
|
|
|
best = kvm_find_cpuid_entry(vcpu, 7, 0);
|
|
return best && (best->ebx & bit(X86_FEATURE_SMAP));
|
|
}
|
|
|
|
static inline bool guest_cpuid_has_fsgsbase(struct kvm_vcpu *vcpu)
|
|
{
|
|
struct kvm_cpuid_entry2 *best;
|
|
|
|
best = kvm_find_cpuid_entry(vcpu, 7, 0);
|
|
return best && (best->ebx & bit(X86_FEATURE_FSGSBASE));
|
|
}
|
|
|
|
static inline bool guest_cpuid_has_pku(struct kvm_vcpu *vcpu)
|
|
{
|
|
struct kvm_cpuid_entry2 *best;
|
|
|
|
best = kvm_find_cpuid_entry(vcpu, 7, 0);
|
|
return best && (best->ecx & bit(X86_FEATURE_PKU));
|
|
}
|
|
|
|
static inline bool guest_cpuid_has_longmode(struct kvm_vcpu *vcpu)
|
|
{
|
|
struct kvm_cpuid_entry2 *best;
|
|
|
|
best = kvm_find_cpuid_entry(vcpu, 0x80000001, 0);
|
|
return best && (best->edx & bit(X86_FEATURE_LM));
|
|
}
|
|
|
|
static inline bool guest_cpuid_has_osvw(struct kvm_vcpu *vcpu)
|
|
{
|
|
struct kvm_cpuid_entry2 *best;
|
|
|
|
best = kvm_find_cpuid_entry(vcpu, 0x80000001, 0);
|
|
return best && (best->ecx & bit(X86_FEATURE_OSVW));
|
|
}
|
|
|
|
static inline bool guest_cpuid_has_pcid(struct kvm_vcpu *vcpu)
|
|
{
|
|
struct kvm_cpuid_entry2 *best;
|
|
|
|
best = kvm_find_cpuid_entry(vcpu, 1, 0);
|
|
return best && (best->ecx & bit(X86_FEATURE_PCID));
|
|
}
|
|
|
|
static inline bool guest_cpuid_has_x2apic(struct kvm_vcpu *vcpu)
|
|
{
|
|
struct kvm_cpuid_entry2 *best;
|
|
|
|
best = kvm_find_cpuid_entry(vcpu, 1, 0);
|
|
return best && (best->ecx & bit(X86_FEATURE_X2APIC));
|
|
}
|
|
|
|
static inline bool guest_cpuid_is_amd(struct kvm_vcpu *vcpu)
|
|
{
|
|
struct kvm_cpuid_entry2 *best;
|
|
|
|
best = kvm_find_cpuid_entry(vcpu, 0, 0);
|
|
return best && best->ebx == X86EMUL_CPUID_VENDOR_AuthenticAMD_ebx;
|
|
}
|
|
|
|
static inline bool guest_cpuid_has_gbpages(struct kvm_vcpu *vcpu)
|
|
{
|
|
struct kvm_cpuid_entry2 *best;
|
|
|
|
best = kvm_find_cpuid_entry(vcpu, 0x80000001, 0);
|
|
return best && (best->edx & bit(X86_FEATURE_GBPAGES));
|
|
}
|
|
|
|
static inline bool guest_cpuid_has_rtm(struct kvm_vcpu *vcpu)
|
|
{
|
|
struct kvm_cpuid_entry2 *best;
|
|
|
|
best = kvm_find_cpuid_entry(vcpu, 7, 0);
|
|
return best && (best->ebx & bit(X86_FEATURE_RTM));
|
|
}
|
|
|
|
static inline bool guest_cpuid_has_mpx(struct kvm_vcpu *vcpu)
|
|
{
|
|
struct kvm_cpuid_entry2 *best;
|
|
|
|
best = kvm_find_cpuid_entry(vcpu, 7, 0);
|
|
return best && (best->ebx & bit(X86_FEATURE_MPX));
|
|
}
|
|
|
|
static inline bool guest_cpuid_has_rdtscp(struct kvm_vcpu *vcpu)
|
|
{
|
|
struct kvm_cpuid_entry2 *best;
|
|
|
|
best = kvm_find_cpuid_entry(vcpu, 0x80000001, 0);
|
|
return best && (best->edx & bit(X86_FEATURE_RDTSCP));
|
|
}
|
|
|
|
/*
|
|
* NRIPS is provided through cpuidfn 0x8000000a.edx bit 3
|
|
*/
|
|
#define BIT_NRIPS 3
|
|
|
|
static inline bool guest_cpuid_has_nrips(struct kvm_vcpu *vcpu)
|
|
{
|
|
struct kvm_cpuid_entry2 *best;
|
|
|
|
best = kvm_find_cpuid_entry(vcpu, 0x8000000a, 0);
|
|
|
|
/*
|
|
* NRIPS is a scattered cpuid feature, so we can't use
|
|
* X86_FEATURE_NRIPS here (X86_FEATURE_NRIPS would be bit
|
|
* position 8, not 3).
|
|
*/
|
|
return best && (best->edx & bit(BIT_NRIPS));
|
|
}
|
|
#undef BIT_NRIPS
|
|
|
|
static inline int guest_cpuid_family(struct kvm_vcpu *vcpu)
|
|
{
|
|
struct kvm_cpuid_entry2 *best;
|
|
|
|
best = kvm_find_cpuid_entry(vcpu, 0x1, 0);
|
|
if (!best)
|
|
return -1;
|
|
|
|
return x86_family(best->eax);
|
|
}
|
|
|
|
static inline int guest_cpuid_model(struct kvm_vcpu *vcpu)
|
|
{
|
|
struct kvm_cpuid_entry2 *best;
|
|
|
|
best = kvm_find_cpuid_entry(vcpu, 0x1, 0);
|
|
if (!best)
|
|
return -1;
|
|
|
|
return x86_model(best->eax);
|
|
}
|
|
|
|
static inline int guest_cpuid_stepping(struct kvm_vcpu *vcpu)
|
|
{
|
|
struct kvm_cpuid_entry2 *best;
|
|
|
|
best = kvm_find_cpuid_entry(vcpu, 0x1, 0);
|
|
if (!best)
|
|
return -1;
|
|
|
|
return x86_stepping(best->eax);
|
|
}
|
|
|
|
static inline bool supports_cpuid_fault(struct kvm_vcpu *vcpu)
|
|
{
|
|
return vcpu->arch.msr_platform_info & MSR_PLATFORM_INFO_CPUID_FAULT;
|
|
}
|
|
|
|
static inline bool cpuid_fault_enabled(struct kvm_vcpu *vcpu)
|
|
{
|
|
return vcpu->arch.msr_misc_features_enables &
|
|
MSR_MISC_FEATURES_ENABLES_CPUID_FAULT;
|
|
}
|
|
|
|
#endif
|