2 * Kernel-based Virtual Machine driver for Linux
4 * This header defines architecture specific interfaces, x86 version
6 * This work is licensed under the terms of the GNU GPL, version 2. See
7 * the COPYING file in the top-level directory.
16 #include <linux/types.h>
19 #include <linux/kvm.h>
20 #include <linux/kvm_para.h>
22 extern spinlock_t kvm_lock;
23 extern struct list_head vm_list;
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() */
39 u64 pdptrs[4]; /* pae */
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
50 u64 ia32_misc_enable_msr;
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;
59 gfn_t last_pt_write_gfn;
60 int last_pt_write_count;
61 u64 *last_pte_updated;
64 struct i387_fxsave_struct host_fx_image;
65 struct i387_fxsave_struct guest_fx_image;
68 struct kvm_pio_request pio;
74 struct kvm_save_segment {
81 int halt_request; /* real mode on Intel only */
84 struct kvm_cpuid_entry cpuid_entries[KVM_MAX_CPUID_ENTRIES];
88 struct x86_emulate_ctxt emulate_ctxt;
91 extern struct kvm_x86_ops *kvm_x86_ops;
93 int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t gva, u32 error_code);
95 static inline void kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu)
97 if (unlikely(vcpu->kvm->n_free_mmu_pages < KVM_MIN_FREE_MMU_PAGES))
98 __kvm_mmu_free_some_pages(vcpu);
101 static inline int kvm_mmu_reload(struct kvm_vcpu *vcpu)
103 if (likely(vcpu->mmu.root_hpa != INVALID_PAGE))
106 return kvm_mmu_load(vcpu);
109 static inline int is_long_mode(struct kvm_vcpu *vcpu)
112 return vcpu->shadow_efer & EFER_LME;
118 static inline int is_pae(struct kvm_vcpu *vcpu)
120 return vcpu->cr4 & X86_CR4_PAE;
123 static inline int is_pse(struct kvm_vcpu *vcpu)
125 return vcpu->cr4 & X86_CR4_PSE;
128 static inline int is_paging(struct kvm_vcpu *vcpu)
130 return vcpu->cr0 & X86_CR0_PG;
133 int load_pdptrs(struct kvm_vcpu *vcpu, unsigned long cr3);
134 int complete_pio(struct kvm_vcpu *vcpu);