diff options
Diffstat (limited to 'arch/x86/include/asm/kvm_host.h')
| -rw-r--r-- | arch/x86/include/asm/kvm_host.h | 105 |
1 files changed, 72 insertions, 33 deletions
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 502e53f999c..9e6fe391094 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -236,10 +236,14 @@ struct kvm_pio_request { */ struct kvm_mmu { void (*new_cr3)(struct kvm_vcpu *vcpu); + void (*set_cr3)(struct kvm_vcpu *vcpu, unsigned long root); + unsigned long (*get_cr3)(struct kvm_vcpu *vcpu); int (*page_fault)(struct kvm_vcpu *vcpu, gva_t gva, u32 err); + void (*inject_page_fault)(struct kvm_vcpu *vcpu); void (*free)(struct kvm_vcpu *vcpu); gpa_t (*gva_to_gpa)(struct kvm_vcpu *vcpu, gva_t gva, u32 access, u32 *error); + gpa_t (*translate_gpa)(struct kvm_vcpu *vcpu, gpa_t gpa, u32 access); void (*prefetch_page)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *page); int (*sync_page)(struct kvm_vcpu *vcpu, @@ -249,13 +253,18 @@ struct kvm_mmu { int root_level; int shadow_root_level; union kvm_mmu_page_role base_role; + bool direct_map; u64 *pae_root; + u64 *lm_root; u64 rsvd_bits_mask[2][4]; + + bool nx; + + u64 pdptrs[4]; /* pae */ }; struct kvm_vcpu_arch { - u64 host_tsc; /* * rip and regs accesses must go through * kvm_{register,rip}_{read,write} functions. @@ -272,7 +281,6 @@ struct kvm_vcpu_arch { unsigned long cr4_guest_owned_bits; unsigned long cr8; u32 hflags; - u64 pdptrs[4]; /* pae */ u64 efer; u64 apic_base; struct kvm_lapic *apic; /* kernel irqchip context */ @@ -282,7 +290,41 @@ struct kvm_vcpu_arch { u64 ia32_misc_enable_msr; bool tpr_access_reporting; + /* + * Paging state of the vcpu + * + * If the vcpu runs in guest mode with two level paging this still saves + * the paging mode of the l1 guest. This context is always used to + * handle faults. + */ struct kvm_mmu mmu; + + /* + * Paging state of an L2 guest (used for nested npt) + * + * This context will save all necessary information to walk page tables + * of the an L2 guest. This context is only initialized for page table + * walking and not for faulting since we never handle l2 page faults on + * the host. + */ + struct kvm_mmu nested_mmu; + + /* + * Pointer to the mmu context currently used for + * gva_to_gpa translations. + */ + struct kvm_mmu *walk_mmu; + + /* + * This struct is filled with the necessary information to propagate a + * page fault into the guest + */ + struct { + u64 address; + unsigned error_code; + bool nested; + } fault; + /* only needed in kvm_pv_mmu_op() path, but it's hot so * put it here to avoid allocation */ struct kvm_pv_mmu_op_buffer mmu_op_buffer; @@ -336,9 +378,15 @@ struct kvm_vcpu_arch { gpa_t time; struct pvclock_vcpu_time_info hv_clock; - unsigned int hv_clock_tsc_khz; + unsigned int hw_tsc_khz; unsigned int time_offset; struct page *time_page; + u64 last_host_tsc; + u64 last_guest_tsc; + u64 last_kernel_ns; + u64 last_tsc_nsec; + u64 last_tsc_write; + bool tsc_catchup; bool nmi_pending; bool nmi_injected; @@ -367,9 +415,9 @@ struct kvm_vcpu_arch { }; struct kvm_arch { - unsigned int n_free_mmu_pages; + unsigned int n_used_mmu_pages; unsigned int n_requested_mmu_pages; - unsigned int n_alloc_mmu_pages; + unsigned int n_max_mmu_pages; atomic_t invlpg_counter; struct hlist_head mmu_page_hash[KVM_NUM_MMU_PAGES]; /* @@ -394,8 +442,14 @@ struct kvm_arch { gpa_t ept_identity_map_addr; unsigned long irq_sources_bitmap; - u64 vm_init_tsc; s64 kvmclock_offset; + spinlock_t tsc_write_lock; + u64 last_tsc_nsec; + u64 last_tsc_offset; + u64 last_tsc_write; + u32 virtual_tsc_khz; + u32 virtual_tsc_mult; + s8 virtual_tsc_shift; struct kvm_xen_hvm_config xen_hvm_config; @@ -505,6 +559,7 @@ struct kvm_x86_ops { void (*queue_exception)(struct kvm_vcpu *vcpu, unsigned nr, bool has_error_code, u32 error_code, bool reinject); + void (*cancel_injection)(struct kvm_vcpu *vcpu); int (*interrupt_allowed)(struct kvm_vcpu *vcpu); int (*nmi_allowed)(struct kvm_vcpu *vcpu); bool (*get_nmi_mask)(struct kvm_vcpu *vcpu); @@ -517,11 +572,16 @@ struct kvm_x86_ops { u64 (*get_mt_mask)(struct kvm_vcpu *vcpu, gfn_t gfn, bool is_mmio); int (*get_lpage_level)(void); bool (*rdtscp_supported)(void); + void (*adjust_tsc_offset)(struct kvm_vcpu *vcpu, s64 adjustment); + + void (*set_tdp_cr3)(struct kvm_vcpu *vcpu, unsigned long cr3); void (*set_supported_cpuid)(u32 func, struct kvm_cpuid_entry2 *entry); bool (*has_wbinvd_exit)(void); + void (*write_tsc_offset)(struct kvm_vcpu *vcpu, u64 offset); + const struct trace_print_flags *exit_reasons_str; }; @@ -544,7 +604,7 @@ void kvm_mmu_zap_all(struct kvm *kvm); unsigned int kvm_mmu_calculate_mmu_pages(struct kvm *kvm); void kvm_mmu_change_mmu_pages(struct kvm *kvm, unsigned int kvm_nr_mmu_pages); -int load_pdptrs(struct kvm_vcpu *vcpu, unsigned long cr3); +int load_pdptrs(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu, unsigned long cr3); int emulator_write_phys(struct kvm_vcpu *vcpu, gpa_t gpa, const void *val, int bytes); @@ -608,8 +668,11 @@ void kvm_queue_exception(struct kvm_vcpu *vcpu, unsigned nr); void kvm_queue_exception_e(struct kvm_vcpu *vcpu, unsigned nr, u32 error_code); void kvm_requeue_exception(struct kvm_vcpu *vcpu, unsigned nr); void kvm_requeue_exception_e(struct kvm_vcpu *vcpu, unsigned nr, u32 error_code); -void kvm_inject_page_fault(struct kvm_vcpu *vcpu, unsigned long cr2, - u32 error_code); +void kvm_inject_page_fault(struct kvm_vcpu *vcpu); +int kvm_read_guest_page_mmu(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu, + gfn_t gfn, void *data, int offset, int len, + u32 access); +void kvm_propagate_fault(struct kvm_vcpu *vcpu); bool kvm_require_cpl(struct kvm_vcpu *vcpu, int required_cpl); int kvm_pic_set_irq(void *opaque, int irq, int level); @@ -652,20 +715,6 @@ static inline struct kvm_mmu_page *page_header(hpa_t shadow_page) return (struct kvm_mmu_page *)page_private(page); } -static inline u16 kvm_read_fs(void) -{ - u16 seg; - asm("mov %%fs, %0" : "=g"(seg)); - return seg; -} - -static inline u16 kvm_read_gs(void) -{ - u16 seg; - asm("mov %%gs, %0" : "=g"(seg)); - return seg; -} - static inline u16 kvm_read_ldt(void) { u16 ldt; @@ -673,16 +722,6 @@ static inline u16 kvm_read_ldt(void) return ldt; } -static inline void kvm_load_fs(u16 sel) -{ - asm("mov %0, %%fs" : : "rm"(sel)); -} - -static inline void kvm_load_gs(u16 sel) -{ - asm("mov %0, %%gs" : : "rm"(sel)); -} - static inline void kvm_load_ldt(u16 sel) { asm("lldt %0" : : "rm"(sel)); |