| Avi Kivity | 00b27a3 | 2011-11-23 16:30:32 +0200 | [diff] [blame] | 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 | |
| 21 | |
| 22 | static inline bool guest_cpuid_has_xsave(struct kvm_vcpu *vcpu) |
| 23 | { |
| 24 | struct kvm_cpuid_entry2 *best; |
| 25 | |
| Petr Matousek | 865c6f7 | 2012-11-06 19:24:07 +0100 | [diff] [blame] | 26 | if (!static_cpu_has(X86_FEATURE_XSAVE)) |
| 27 | return 0; |
| 28 | |
| Avi Kivity | 00b27a3 | 2011-11-23 16:30:32 +0200 | [diff] [blame] | 29 | best = kvm_find_cpuid_entry(vcpu, 1, 0); |
| 30 | return best && (best->ecx & bit(X86_FEATURE_XSAVE)); |
| 31 | } |
| 32 | |
| 33 | static inline bool guest_cpuid_has_smep(struct kvm_vcpu *vcpu) |
| 34 | { |
| 35 | struct kvm_cpuid_entry2 *best; |
| 36 | |
| 37 | best = kvm_find_cpuid_entry(vcpu, 7, 0); |
| 38 | return best && (best->ebx & bit(X86_FEATURE_SMEP)); |
| 39 | } |
| 40 | |
| 41 | static inline bool guest_cpuid_has_fsgsbase(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_FSGSBASE)); |
| 47 | } |
| 48 | |
| Boris Ostrovsky | 2b036c6 | 2012-01-09 14:00:35 -0500 | [diff] [blame] | 49 | static inline bool guest_cpuid_has_osvw(struct kvm_vcpu *vcpu) |
| 50 | { |
| 51 | struct kvm_cpuid_entry2 *best; |
| 52 | |
| 53 | best = kvm_find_cpuid_entry(vcpu, 0x80000001, 0); |
| 54 | return best && (best->ecx & bit(X86_FEATURE_OSVW)); |
| 55 | } |
| 56 | |
| Avi Kivity | 00b27a3 | 2011-11-23 16:30:32 +0200 | [diff] [blame] | 57 | #endif |