forked from Minki/linux
3067714cf5
The code that dispatches the page fault and emulates if we failed to map is duplicated across vmx and svm. Merge it to simplify further bugfixing. Signed-off-by: Avi Kivity <avi@qumranet.com>
130 lines
2.8 KiB
C
130 lines
2.8 KiB
C
#/*
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* Kernel-based Virtual Machine driver for Linux
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*
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* This header defines architecture specific interfaces, x86 version
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*
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* This work is licensed under the terms of the GNU GPL, version 2. See
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* the COPYING file in the top-level directory.
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*
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*/
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#ifndef KVM_X86_H
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#define KVM_X86_H
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#include "kvm.h"
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#include <linux/types.h>
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#include <linux/mm.h>
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#include <linux/kvm.h>
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#include <linux/kvm_para.h>
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struct kvm_vcpu {
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KVM_VCPU_COMM;
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u64 host_tsc;
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int interrupt_window_open;
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unsigned long irq_summary; /* bit vector: 1 per word in irq_pending */
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DECLARE_BITMAP(irq_pending, KVM_NR_INTERRUPTS);
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unsigned long regs[NR_VCPU_REGS]; /* for rsp: vcpu_load_rsp_rip() */
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unsigned long rip; /* needs vcpu_load_rsp_rip() */
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unsigned long cr0;
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unsigned long cr2;
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unsigned long cr3;
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unsigned long cr4;
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unsigned long cr8;
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u64 pdptrs[4]; /* pae */
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u64 shadow_efer;
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u64 apic_base;
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struct kvm_lapic *apic; /* kernel irqchip context */
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#define VCPU_MP_STATE_RUNNABLE 0
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#define VCPU_MP_STATE_UNINITIALIZED 1
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#define VCPU_MP_STATE_INIT_RECEIVED 2
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#define VCPU_MP_STATE_SIPI_RECEIVED 3
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#define VCPU_MP_STATE_HALTED 4
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int mp_state;
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int sipi_vector;
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u64 ia32_misc_enable_msr;
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struct kvm_mmu mmu;
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struct kvm_mmu_memory_cache mmu_pte_chain_cache;
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struct kvm_mmu_memory_cache mmu_rmap_desc_cache;
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struct kvm_mmu_memory_cache mmu_page_cache;
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struct kvm_mmu_memory_cache mmu_page_header_cache;
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gfn_t last_pt_write_gfn;
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int last_pt_write_count;
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u64 *last_pte_updated;
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struct i387_fxsave_struct host_fx_image;
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struct i387_fxsave_struct guest_fx_image;
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gva_t mmio_fault_cr2;
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struct kvm_pio_request pio;
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void *pio_data;
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struct {
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int active;
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u8 save_iopl;
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struct kvm_save_segment {
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u16 selector;
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unsigned long base;
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u32 limit;
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u32 ar;
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} tr, es, ds, fs, gs;
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} rmode;
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int halt_request; /* real mode on Intel only */
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int cpuid_nent;
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struct kvm_cpuid_entry cpuid_entries[KVM_MAX_CPUID_ENTRIES];
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/* emulate context */
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struct x86_emulate_ctxt emulate_ctxt;
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};
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int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t gva, u32 error_code);
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static inline void kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu)
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{
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if (unlikely(vcpu->kvm->n_free_mmu_pages < KVM_MIN_FREE_MMU_PAGES))
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__kvm_mmu_free_some_pages(vcpu);
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}
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static inline int kvm_mmu_reload(struct kvm_vcpu *vcpu)
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{
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if (likely(vcpu->mmu.root_hpa != INVALID_PAGE))
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return 0;
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return kvm_mmu_load(vcpu);
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}
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static inline int is_long_mode(struct kvm_vcpu *vcpu)
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{
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#ifdef CONFIG_X86_64
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return vcpu->shadow_efer & EFER_LME;
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#else
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return 0;
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#endif
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}
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static inline int is_pae(struct kvm_vcpu *vcpu)
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{
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return vcpu->cr4 & X86_CR4_PAE;
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}
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static inline int is_pse(struct kvm_vcpu *vcpu)
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{
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return vcpu->cr4 & X86_CR4_PSE;
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}
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static inline int is_paging(struct kvm_vcpu *vcpu)
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{
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return vcpu->cr0 & X86_CR0_PG;
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}
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#endif
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