1 files changed, 46 insertions, 0 deletions

diff --git a/arch/x86/kvm/cpuid.h b/arch/x86/kvm/cpuid.h
new file mode 100644
index 000000000000..5b97e1797a6d
--- /dev/null
+++ b/arch/x86/kvm/cpuid.h
@@ -0,0 +1,46 @@
+#ifndef ARCH_X86_KVM_CPUID_H
+#define ARCH_X86_KVM_CPUID_H
+
+#include "x86.h"
+
+void kvm_update_cpuid(struct kvm_vcpu *vcpu);
+struct kvm_cpuid_entry2 *kvm_find_cpuid_entry(struct kvm_vcpu *vcpu,
+                                              u32 function, u32 index);
+int kvm_dev_ioctl_get_supported_cpuid(struct kvm_cpuid2 *cpuid,
+                                      struct kvm_cpuid_entry2 __user *entries);
+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);
+
+
+static inline bool guest_cpuid_has_xsave(struct kvm_vcpu *vcpu)
+{
+        struct kvm_cpuid_entry2 *best;
+
+        best = kvm_find_cpuid_entry(vcpu, 1, 0);
+        return best && (best->ecx & bit(X86_FEATURE_XSAVE));
+}
+
+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_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));
+}
+
+#endif