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
kvm_clear_exception_queue(struct kvm_vcpu * vcpu)7 static inline void kvm_clear_exception_queue(struct kvm_vcpu *vcpu)
8 {
9 vcpu->arch.exception.pending = false;
10 }
11
kvm_queue_interrupt(struct kvm_vcpu * vcpu,u8 vector,bool soft)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
kvm_clear_interrupt_queue(struct kvm_vcpu * vcpu)20 static inline void kvm_clear_interrupt_queue(struct kvm_vcpu *vcpu)
21 {
22 vcpu->arch.interrupt.pending = false;
23 }
24
kvm_event_needs_reinjection(struct kvm_vcpu * vcpu)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
kvm_exception_is_soft(unsigned int nr)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
is_protmode(struct kvm_vcpu * vcpu)39 static inline bool is_protmode(struct kvm_vcpu *vcpu)
40 {
41 return kvm_read_cr0_bits(vcpu, X86_CR0_PE);
42 }
43
is_long_mode(struct kvm_vcpu * vcpu)44 static inline int is_long_mode(struct kvm_vcpu *vcpu)
45 {
46 #ifdef CONFIG_X86_64
47 return vcpu->arch.efer & EFER_LMA;
48 #else
49 return 0;
50 #endif
51 }
52
mmu_is_nested(struct kvm_vcpu * vcpu)53 static inline bool mmu_is_nested(struct kvm_vcpu *vcpu)
54 {
55 return vcpu->arch.walk_mmu == &vcpu->arch.nested_mmu;
56 }
57
is_pae(struct kvm_vcpu * vcpu)58 static inline int is_pae(struct kvm_vcpu *vcpu)
59 {
60 return kvm_read_cr4_bits(vcpu, X86_CR4_PAE);
61 }
62
is_pse(struct kvm_vcpu * vcpu)63 static inline int is_pse(struct kvm_vcpu *vcpu)
64 {
65 return kvm_read_cr4_bits(vcpu, X86_CR4_PSE);
66 }
67
is_paging(struct kvm_vcpu * vcpu)68 static inline int is_paging(struct kvm_vcpu *vcpu)
69 {
70 return kvm_read_cr0_bits(vcpu, X86_CR0_PG);
71 }
72
bit(int bitno)73 static inline u32 bit(int bitno)
74 {
75 return 1 << (bitno & 31);
76 }
77
78 void kvm_before_handle_nmi(struct kvm_vcpu *vcpu);
79 void kvm_after_handle_nmi(struct kvm_vcpu *vcpu);
80 int kvm_inject_realmode_interrupt(struct kvm_vcpu *vcpu, int irq);
81
82 void kvm_write_tsc(struct kvm_vcpu *vcpu, u64 data);
83
84 #endif
85