KVM: Add a helper for checking if the guest is in protected mode
[pandora-kernel.git] / arch / x86 / kvm / x86.h
1 #ifndef ARCH_X86_KVM_X86_H
2 #define ARCH_X86_KVM_X86_H
3
4 #include <linux/kvm_host.h>
5 #include "kvm_cache_regs.h"
6
7 static inline void kvm_clear_exception_queue(struct kvm_vcpu *vcpu)
8 {
9         vcpu->arch.exception.pending = false;
10 }
11
12 static inline void kvm_queue_interrupt(struct kvm_vcpu *vcpu, u8 vector,
13         bool soft)
14 {
15         vcpu->arch.interrupt.pending = true;
16         vcpu->arch.interrupt.soft = soft;
17         vcpu->arch.interrupt.nr = vector;
18 }
19
20 static inline void kvm_clear_interrupt_queue(struct kvm_vcpu *vcpu)
21 {
22         vcpu->arch.interrupt.pending = false;
23 }
24
25 static inline bool kvm_event_needs_reinjection(struct kvm_vcpu *vcpu)
26 {
27         return vcpu->arch.exception.pending || vcpu->arch.interrupt.pending ||
28                 vcpu->arch.nmi_injected;
29 }
30
31 static inline bool kvm_exception_is_soft(unsigned int nr)
32 {
33         return (nr == BP_VECTOR) || (nr == OF_VECTOR);
34 }
35
36 struct kvm_cpuid_entry2 *kvm_find_cpuid_entry(struct kvm_vcpu *vcpu,
37                                              u32 function, u32 index);
38
39 static inline bool is_protmode(struct kvm_vcpu *vcpu)
40 {
41         return kvm_read_cr0_bits(vcpu, X86_CR0_PE);
42 }
43
44 #endif