PageRenderTime 30ms CodeModel.GetById 26ms app.highlight 3ms RepoModel.GetById 0ms app.codeStats 0ms

/arch/x86/kvm/x86.h

https://bitbucket.org/thekraven/iscream_thunderc-2.6.35
C++ Header | 78 lines | 63 code | 15 blank | 0 comment | 5 complexity | 2ef8c3a682970bcb7fdfbd21c6958a75 MD5 | raw file
Possible License(s): GPL-2.0, LGPL-2.0, AGPL-1.0
 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
 7static inline void kvm_clear_exception_queue(struct kvm_vcpu *vcpu)
 8{
 9	vcpu->arch.exception.pending = false;
10}
11
12static 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
20static inline void kvm_clear_interrupt_queue(struct kvm_vcpu *vcpu)
21{
22	vcpu->arch.interrupt.pending = false;
23}
24
25static 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
31static inline bool kvm_exception_is_soft(unsigned int nr)
32{
33	return (nr == BP_VECTOR) || (nr == OF_VECTOR);
34}
35
36struct kvm_cpuid_entry2 *kvm_find_cpuid_entry(struct kvm_vcpu *vcpu,
37                                             u32 function, u32 index);
38
39static inline bool is_protmode(struct kvm_vcpu *vcpu)
40{
41	return kvm_read_cr0_bits(vcpu, X86_CR0_PE);
42}
43
44static 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
53static inline int is_pae(struct kvm_vcpu *vcpu)
54{
55	return kvm_read_cr4_bits(vcpu, X86_CR4_PAE);
56}
57
58static inline int is_pse(struct kvm_vcpu *vcpu)
59{
60	return kvm_read_cr4_bits(vcpu, X86_CR4_PSE);
61}
62
63static inline int is_paging(struct kvm_vcpu *vcpu)
64{
65	return kvm_read_cr0_bits(vcpu, X86_CR0_PG);
66}
67
68static inline struct kvm_mem_aliases *kvm_aliases(struct kvm *kvm)
69{
70	return rcu_dereference_check(kvm->arch.aliases,
71			srcu_read_lock_held(&kvm->srcu)
72			|| lockdep_is_held(&kvm->slots_lock));
73}
74
75void kvm_before_handle_nmi(struct kvm_vcpu *vcpu);
76void kvm_after_handle_nmi(struct kvm_vcpu *vcpu);
77
78#endif