| #/* |
| * Kernel-based Virtual Machine driver for Linux |
| * |
| * This header defines architecture specific interfaces, x86 version |
| * |
| * This work is licensed under the terms of the GNU GPL, version 2. See |
| * the COPYING file in the top-level directory. |
| * |
| */ |
| |
| #ifndef KVM_X86_H |
| #define KVM_X86_H |
| |
| #include "kvm.h" |
| |
| #include <linux/types.h> |
| #include <linux/mm.h> |
| |
| #include <linux/kvm.h> |
| #include <linux/kvm_para.h> |
| |
| struct kvm_vcpu { |
| KVM_VCPU_COMM; |
| u64 host_tsc; |
| int interrupt_window_open; |
| unsigned long irq_summary; /* bit vector: 1 per word in irq_pending */ |
| DECLARE_BITMAP(irq_pending, KVM_NR_INTERRUPTS); |
| unsigned long regs[NR_VCPU_REGS]; /* for rsp: vcpu_load_rsp_rip() */ |
| unsigned long rip; /* needs vcpu_load_rsp_rip() */ |
| |
| unsigned long cr0; |
| unsigned long cr2; |
| unsigned long cr3; |
| unsigned long cr4; |
| unsigned long cr8; |
| u64 pdptrs[4]; /* pae */ |
| u64 shadow_efer; |
| u64 apic_base; |
| struct kvm_lapic *apic; /* kernel irqchip context */ |
| #define VCPU_MP_STATE_RUNNABLE 0 |
| #define VCPU_MP_STATE_UNINITIALIZED 1 |
| #define VCPU_MP_STATE_INIT_RECEIVED 2 |
| #define VCPU_MP_STATE_SIPI_RECEIVED 3 |
| #define VCPU_MP_STATE_HALTED 4 |
| int mp_state; |
| int sipi_vector; |
| u64 ia32_misc_enable_msr; |
| |
| struct kvm_mmu mmu; |
| |
| struct kvm_mmu_memory_cache mmu_pte_chain_cache; |
| struct kvm_mmu_memory_cache mmu_rmap_desc_cache; |
| struct kvm_mmu_memory_cache mmu_page_cache; |
| struct kvm_mmu_memory_cache mmu_page_header_cache; |
| |
| gfn_t last_pt_write_gfn; |
| int last_pt_write_count; |
| u64 *last_pte_updated; |
| |
| |
| struct i387_fxsave_struct host_fx_image; |
| struct i387_fxsave_struct guest_fx_image; |
| |
| gva_t mmio_fault_cr2; |
| struct kvm_pio_request pio; |
| void *pio_data; |
| |
| struct { |
| int active; |
| u8 save_iopl; |
| struct kvm_save_segment { |
| u16 selector; |
| unsigned long base; |
| u32 limit; |
| u32 ar; |
| } tr, es, ds, fs, gs; |
| } rmode; |
| int halt_request; /* real mode on Intel only */ |
| |
| int cpuid_nent; |
| struct kvm_cpuid_entry cpuid_entries[KVM_MAX_CPUID_ENTRIES]; |
| |
| /* emulate context */ |
| |
| struct x86_emulate_ctxt emulate_ctxt; |
| }; |
| |
| int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t gva, u32 error_code); |
| |
| static inline void kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu) |
| { |
| if (unlikely(vcpu->kvm->n_free_mmu_pages < KVM_MIN_FREE_MMU_PAGES)) |
| __kvm_mmu_free_some_pages(vcpu); |
| } |
| |
| static inline int kvm_mmu_reload(struct kvm_vcpu *vcpu) |
| { |
| if (likely(vcpu->mmu.root_hpa != INVALID_PAGE)) |
| return 0; |
| |
| return kvm_mmu_load(vcpu); |
| } |
| |
| static inline int is_long_mode(struct kvm_vcpu *vcpu) |
| { |
| #ifdef CONFIG_X86_64 |
| return vcpu->shadow_efer & EFER_LME; |
| #else |
| return 0; |
| #endif |
| } |
| |
| static inline int is_pae(struct kvm_vcpu *vcpu) |
| { |
| return vcpu->cr4 & X86_CR4_PAE; |
| } |
| |
| static inline int is_pse(struct kvm_vcpu *vcpu) |
| { |
| return vcpu->cr4 & X86_CR4_PSE; |
| } |
| |
| static inline int is_paging(struct kvm_vcpu *vcpu) |
| { |
| return vcpu->cr0 & X86_CR0_PG; |
| } |
| |
| |
| #endif |