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043405e1 CO |
1 | #/* |
2 | * Kernel-based Virtual Machine driver for Linux | |
3 | * | |
4 | * This header defines architecture specific interfaces, x86 version | |
5 | * | |
6 | * This work is licensed under the terms of the GNU GPL, version 2. See | |
7 | * the COPYING file in the top-level directory. | |
8 | * | |
9 | */ | |
10 | ||
11 | #ifndef KVM_X86_H | |
12 | #define KVM_X86_H | |
13 | ||
14 | #include "kvm.h" | |
15 | ||
34c16eec ZX |
16 | #include <linux/types.h> |
17 | #include <linux/mm.h> | |
18 | ||
19 | #include <linux/kvm.h> | |
20 | #include <linux/kvm_para.h> | |
21 | ||
e9b11c17 ZX |
22 | extern spinlock_t kvm_lock; |
23 | extern struct list_head vm_list; | |
24 | ||
34c16eec ZX |
25 | struct kvm_vcpu { |
26 | KVM_VCPU_COMM; | |
27 | u64 host_tsc; | |
28 | int interrupt_window_open; | |
29 | unsigned long irq_summary; /* bit vector: 1 per word in irq_pending */ | |
30 | DECLARE_BITMAP(irq_pending, KVM_NR_INTERRUPTS); | |
31 | unsigned long regs[NR_VCPU_REGS]; /* for rsp: vcpu_load_rsp_rip() */ | |
32 | unsigned long rip; /* needs vcpu_load_rsp_rip() */ | |
33 | ||
34 | unsigned long cr0; | |
35 | unsigned long cr2; | |
36 | unsigned long cr3; | |
37 | unsigned long cr4; | |
38 | unsigned long cr8; | |
39 | u64 pdptrs[4]; /* pae */ | |
40 | u64 shadow_efer; | |
41 | u64 apic_base; | |
42 | struct kvm_lapic *apic; /* kernel irqchip context */ | |
43 | #define VCPU_MP_STATE_RUNNABLE 0 | |
44 | #define VCPU_MP_STATE_UNINITIALIZED 1 | |
45 | #define VCPU_MP_STATE_INIT_RECEIVED 2 | |
46 | #define VCPU_MP_STATE_SIPI_RECEIVED 3 | |
47 | #define VCPU_MP_STATE_HALTED 4 | |
48 | int mp_state; | |
49 | int sipi_vector; | |
50 | u64 ia32_misc_enable_msr; | |
51 | ||
52 | struct kvm_mmu mmu; | |
53 | ||
54 | struct kvm_mmu_memory_cache mmu_pte_chain_cache; | |
55 | struct kvm_mmu_memory_cache mmu_rmap_desc_cache; | |
56 | struct kvm_mmu_memory_cache mmu_page_cache; | |
57 | struct kvm_mmu_memory_cache mmu_page_header_cache; | |
58 | ||
59 | gfn_t last_pt_write_gfn; | |
60 | int last_pt_write_count; | |
61 | u64 *last_pte_updated; | |
62 | ||
63 | ||
64 | struct i387_fxsave_struct host_fx_image; | |
65 | struct i387_fxsave_struct guest_fx_image; | |
66 | ||
67 | gva_t mmio_fault_cr2; | |
68 | struct kvm_pio_request pio; | |
69 | void *pio_data; | |
70 | ||
71 | struct { | |
72 | int active; | |
73 | u8 save_iopl; | |
74 | struct kvm_save_segment { | |
75 | u16 selector; | |
76 | unsigned long base; | |
77 | u32 limit; | |
78 | u32 ar; | |
79 | } tr, es, ds, fs, gs; | |
80 | } rmode; | |
81 | int halt_request; /* real mode on Intel only */ | |
82 | ||
83 | int cpuid_nent; | |
84 | struct kvm_cpuid_entry cpuid_entries[KVM_MAX_CPUID_ENTRIES]; | |
85 | ||
86 | /* emulate context */ | |
87 | ||
88 | struct x86_emulate_ctxt emulate_ctxt; | |
89 | }; | |
90 | ||
97896d04 ZX |
91 | extern struct kvm_x86_ops *kvm_x86_ops; |
92 | ||
3067714c | 93 | int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t gva, u32 error_code); |
34c16eec ZX |
94 | |
95 | static inline void kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu) | |
96 | { | |
97 | if (unlikely(vcpu->kvm->n_free_mmu_pages < KVM_MIN_FREE_MMU_PAGES)) | |
98 | __kvm_mmu_free_some_pages(vcpu); | |
99 | } | |
100 | ||
101 | static inline int kvm_mmu_reload(struct kvm_vcpu *vcpu) | |
102 | { | |
103 | if (likely(vcpu->mmu.root_hpa != INVALID_PAGE)) | |
104 | return 0; | |
105 | ||
106 | return kvm_mmu_load(vcpu); | |
107 | } | |
108 | ||
109 | static inline int is_long_mode(struct kvm_vcpu *vcpu) | |
110 | { | |
111 | #ifdef CONFIG_X86_64 | |
112 | return vcpu->shadow_efer & EFER_LME; | |
113 | #else | |
114 | return 0; | |
115 | #endif | |
116 | } | |
117 | ||
118 | static inline int is_pae(struct kvm_vcpu *vcpu) | |
119 | { | |
120 | return vcpu->cr4 & X86_CR4_PAE; | |
121 | } | |
122 | ||
123 | static inline int is_pse(struct kvm_vcpu *vcpu) | |
124 | { | |
125 | return vcpu->cr4 & X86_CR4_PSE; | |
126 | } | |
127 | ||
128 | static inline int is_paging(struct kvm_vcpu *vcpu) | |
129 | { | |
130 | return vcpu->cr0 & X86_CR0_PG; | |
131 | } | |
132 | ||
a03490ed | 133 | int load_pdptrs(struct kvm_vcpu *vcpu, unsigned long cr3); |
de7d789a | 134 | int complete_pio(struct kvm_vcpu *vcpu); |
043405e1 | 135 | #endif |