From bb8985586b7a906e116db835c64773b7a7d51663 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 17 Aug 2008 21:05:42 -0400 Subject: x86, um: ... and asm-x86 move Signed-off-by: Al Viro Signed-off-by: H. Peter Anvin --- include/asm-x86/kvm_host.h | 752 --------------------------------------------- 1 file changed, 752 deletions(-) delete mode 100644 include/asm-x86/kvm_host.h (limited to 'include/asm-x86/kvm_host.h') diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h deleted file mode 100644 index 411fb8cfb24e..000000000000 --- a/include/asm-x86/kvm_host.h +++ /dev/null @@ -1,752 +0,0 @@ -/* - * 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 ASM_X86__KVM_HOST_H -#define ASM_X86__KVM_HOST_H - -#include -#include -#include - -#include -#include -#include - -#include -#include - -#define KVM_MAX_VCPUS 16 -#define KVM_MEMORY_SLOTS 32 -/* memory slots that does not exposed to userspace */ -#define KVM_PRIVATE_MEM_SLOTS 4 - -#define KVM_PIO_PAGE_OFFSET 1 -#define KVM_COALESCED_MMIO_PAGE_OFFSET 2 - -#define CR3_PAE_RESERVED_BITS ((X86_CR3_PWT | X86_CR3_PCD) - 1) -#define CR3_NONPAE_RESERVED_BITS ((PAGE_SIZE-1) & ~(X86_CR3_PWT | X86_CR3_PCD)) -#define CR3_L_MODE_RESERVED_BITS (CR3_NONPAE_RESERVED_BITS | \ - 0xFFFFFF0000000000ULL) - -#define KVM_GUEST_CR0_MASK \ - (X86_CR0_PG | X86_CR0_PE | X86_CR0_WP | X86_CR0_NE \ - | X86_CR0_NW | X86_CR0_CD) -#define KVM_VM_CR0_ALWAYS_ON \ - (X86_CR0_PG | X86_CR0_PE | X86_CR0_WP | X86_CR0_NE | X86_CR0_TS \ - | X86_CR0_MP) -#define KVM_GUEST_CR4_MASK \ - (X86_CR4_VME | X86_CR4_PSE | X86_CR4_PAE | X86_CR4_PGE | X86_CR4_VMXE) -#define KVM_PMODE_VM_CR4_ALWAYS_ON (X86_CR4_PAE | X86_CR4_VMXE) -#define KVM_RMODE_VM_CR4_ALWAYS_ON (X86_CR4_VME | X86_CR4_PAE | X86_CR4_VMXE) - -#define INVALID_PAGE (~(hpa_t)0) -#define UNMAPPED_GVA (~(gpa_t)0) - -/* shadow tables are PAE even on non-PAE hosts */ -#define KVM_HPAGE_SHIFT 21 -#define KVM_HPAGE_SIZE (1UL << KVM_HPAGE_SHIFT) -#define KVM_HPAGE_MASK (~(KVM_HPAGE_SIZE - 1)) - -#define KVM_PAGES_PER_HPAGE (KVM_HPAGE_SIZE / PAGE_SIZE) - -#define DE_VECTOR 0 -#define DB_VECTOR 1 -#define BP_VECTOR 3 -#define OF_VECTOR 4 -#define BR_VECTOR 5 -#define UD_VECTOR 6 -#define NM_VECTOR 7 -#define DF_VECTOR 8 -#define TS_VECTOR 10 -#define NP_VECTOR 11 -#define SS_VECTOR 12 -#define GP_VECTOR 13 -#define PF_VECTOR 14 -#define MF_VECTOR 16 -#define MC_VECTOR 18 - -#define SELECTOR_TI_MASK (1 << 2) -#define SELECTOR_RPL_MASK 0x03 - -#define IOPL_SHIFT 12 - -#define KVM_ALIAS_SLOTS 4 - -#define KVM_PERMILLE_MMU_PAGES 20 -#define KVM_MIN_ALLOC_MMU_PAGES 64 -#define KVM_MMU_HASH_SHIFT 10 -#define KVM_NUM_MMU_PAGES (1 << KVM_MMU_HASH_SHIFT) -#define KVM_MIN_FREE_MMU_PAGES 5 -#define KVM_REFILL_PAGES 25 -#define KVM_MAX_CPUID_ENTRIES 40 -#define KVM_NR_VAR_MTRR 8 - -extern spinlock_t kvm_lock; -extern struct list_head vm_list; - -struct kvm_vcpu; -struct kvm; - -enum kvm_reg { - VCPU_REGS_RAX = 0, - VCPU_REGS_RCX = 1, - VCPU_REGS_RDX = 2, - VCPU_REGS_RBX = 3, - VCPU_REGS_RSP = 4, - VCPU_REGS_RBP = 5, - VCPU_REGS_RSI = 6, - VCPU_REGS_RDI = 7, -#ifdef CONFIG_X86_64 - VCPU_REGS_R8 = 8, - VCPU_REGS_R9 = 9, - VCPU_REGS_R10 = 10, - VCPU_REGS_R11 = 11, - VCPU_REGS_R12 = 12, - VCPU_REGS_R13 = 13, - VCPU_REGS_R14 = 14, - VCPU_REGS_R15 = 15, -#endif - VCPU_REGS_RIP, - NR_VCPU_REGS -}; - -enum { - VCPU_SREG_ES, - VCPU_SREG_CS, - VCPU_SREG_SS, - VCPU_SREG_DS, - VCPU_SREG_FS, - VCPU_SREG_GS, - VCPU_SREG_TR, - VCPU_SREG_LDTR, -}; - -#include - -#define KVM_NR_MEM_OBJS 40 - -struct kvm_guest_debug { - int enabled; - unsigned long bp[4]; - int singlestep; -}; - -/* - * We don't want allocation failures within the mmu code, so we preallocate - * enough memory for a single page fault in a cache. - */ -struct kvm_mmu_memory_cache { - int nobjs; - void *objects[KVM_NR_MEM_OBJS]; -}; - -#define NR_PTE_CHAIN_ENTRIES 5 - -struct kvm_pte_chain { - u64 *parent_ptes[NR_PTE_CHAIN_ENTRIES]; - struct hlist_node link; -}; - -/* - * kvm_mmu_page_role, below, is defined as: - * - * bits 0:3 - total guest paging levels (2-4, or zero for real mode) - * bits 4:7 - page table level for this shadow (1-4) - * bits 8:9 - page table quadrant for 2-level guests - * bit 16 - "metaphysical" - gfn is not a real page (huge page/real mode) - * bits 17:19 - common access permissions for all ptes in this shadow page - */ -union kvm_mmu_page_role { - unsigned word; - struct { - unsigned glevels:4; - unsigned level:4; - unsigned quadrant:2; - unsigned pad_for_nice_hex_output:6; - unsigned metaphysical:1; - unsigned access:3; - unsigned invalid:1; - }; -}; - -struct kvm_mmu_page { - struct list_head link; - struct hlist_node hash_link; - - /* - * The following two entries are used to key the shadow page in the - * hash table. - */ - gfn_t gfn; - union kvm_mmu_page_role role; - - u64 *spt; - /* hold the gfn of each spte inside spt */ - gfn_t *gfns; - unsigned long slot_bitmap; /* One bit set per slot which has memory - * in this shadow page. - */ - int multimapped; /* More than one parent_pte? */ - int root_count; /* Currently serving as active root */ - bool unsync; - bool unsync_children; - union { - u64 *parent_pte; /* !multimapped */ - struct hlist_head parent_ptes; /* multimapped, kvm_pte_chain */ - }; - DECLARE_BITMAP(unsync_child_bitmap, 512); -}; - -struct kvm_pv_mmu_op_buffer { - void *ptr; - unsigned len; - unsigned processed; - char buf[512] __aligned(sizeof(long)); -}; - -/* - * x86 supports 3 paging modes (4-level 64-bit, 3-level 64-bit, and 2-level - * 32-bit). The kvm_mmu structure abstracts the details of the current mmu - * mode. - */ -struct kvm_mmu { - void (*new_cr3)(struct kvm_vcpu *vcpu); - int (*page_fault)(struct kvm_vcpu *vcpu, gva_t gva, u32 err); - void (*free)(struct kvm_vcpu *vcpu); - gpa_t (*gva_to_gpa)(struct kvm_vcpu *vcpu, gva_t gva); - void (*prefetch_page)(struct kvm_vcpu *vcpu, - struct kvm_mmu_page *page); - int (*sync_page)(struct kvm_vcpu *vcpu, - struct kvm_mmu_page *sp); - void (*invlpg)(struct kvm_vcpu *vcpu, gva_t gva); - hpa_t root_hpa; - int root_level; - int shadow_root_level; - - u64 *pae_root; -}; - -struct kvm_vcpu_arch { - 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); - /* - * rip and regs accesses must go through - * kvm_{register,rip}_{read,write} functions. - */ - unsigned long regs[NR_VCPU_REGS]; - u32 regs_avail; - u32 regs_dirty; - - 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 */ - int mp_state; - int sipi_vector; - u64 ia32_misc_enable_msr; - bool tpr_access_reporting; - - struct kvm_mmu mmu; - /* 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; - - 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; - gfn_t last_pte_gfn; - - struct { - gfn_t gfn; /* presumed gfn during guest pte update */ - pfn_t pfn; /* pfn corresponding to that gfn */ - int largepage; - unsigned long mmu_seq; - } update_pte; - - 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 kvm_queued_exception { - bool pending; - bool has_error_code; - u8 nr; - u32 error_code; - } exception; - - struct kvm_queued_interrupt { - bool pending; - u8 nr; - } interrupt; - - 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_entry2 cpuid_entries[KVM_MAX_CPUID_ENTRIES]; - /* emulate context */ - - struct x86_emulate_ctxt emulate_ctxt; - - gpa_t time; - struct pvclock_vcpu_time_info hv_clock; - unsigned int hv_clock_tsc_khz; - unsigned int time_offset; - struct page *time_page; - - bool nmi_pending; - bool nmi_injected; - - u64 mtrr[0x100]; -}; - -struct kvm_mem_alias { - gfn_t base_gfn; - unsigned long npages; - gfn_t target_gfn; -}; - -struct kvm_arch{ - int naliases; - struct kvm_mem_alias aliases[KVM_ALIAS_SLOTS]; - - unsigned int n_free_mmu_pages; - unsigned int n_requested_mmu_pages; - unsigned int n_alloc_mmu_pages; - struct hlist_head mmu_page_hash[KVM_NUM_MMU_PAGES]; - /* - * Hash table of struct kvm_mmu_page. - */ - struct list_head active_mmu_pages; - struct list_head assigned_dev_head; - struct dmar_domain *intel_iommu_domain; - struct kvm_pic *vpic; - struct kvm_ioapic *vioapic; - struct kvm_pit *vpit; - struct hlist_head irq_ack_notifier_list; - - int round_robin_prev_vcpu; - unsigned int tss_addr; - struct page *apic_access_page; - - gpa_t wall_clock; - - struct page *ept_identity_pagetable; - bool ept_identity_pagetable_done; -}; - -struct kvm_vm_stat { - u32 mmu_shadow_zapped; - u32 mmu_pte_write; - u32 mmu_pte_updated; - u32 mmu_pde_zapped; - u32 mmu_flooded; - u32 mmu_recycled; - u32 mmu_cache_miss; - u32 mmu_unsync; - u32 remote_tlb_flush; - u32 lpages; -}; - -struct kvm_vcpu_stat { - u32 pf_fixed; - u32 pf_guest; - u32 tlb_flush; - u32 invlpg; - - u32 exits; - u32 io_exits; - u32 mmio_exits; - u32 signal_exits; - u32 irq_window_exits; - u32 nmi_window_exits; - u32 halt_exits; - u32 halt_wakeup; - u32 request_irq_exits; - u32 irq_exits; - u32 host_state_reload; - u32 efer_reload; - u32 fpu_reload; - u32 insn_emulation; - u32 insn_emulation_fail; - u32 hypercalls; - u32 irq_injections; -}; - -struct descriptor_table { - u16 limit; - unsigned long base; -} __attribute__((packed)); - -struct kvm_x86_ops { - int (*cpu_has_kvm_support)(void); /* __init */ - int (*disabled_by_bios)(void); /* __init */ - void (*hardware_enable)(void *dummy); /* __init */ - void (*hardware_disable)(void *dummy); - void (*check_processor_compatibility)(void *rtn); - int (*hardware_setup)(void); /* __init */ - void (*hardware_unsetup)(void); /* __exit */ - bool (*cpu_has_accelerated_tpr)(void); - - /* Create, but do not attach this VCPU */ - struct kvm_vcpu *(*vcpu_create)(struct kvm *kvm, unsigned id); - void (*vcpu_free)(struct kvm_vcpu *vcpu); - int (*vcpu_reset)(struct kvm_vcpu *vcpu); - - void (*prepare_guest_switch)(struct kvm_vcpu *vcpu); - void (*vcpu_load)(struct kvm_vcpu *vcpu, int cpu); - void (*vcpu_put)(struct kvm_vcpu *vcpu); - - int (*set_guest_debug)(struct kvm_vcpu *vcpu, - struct kvm_debug_guest *dbg); - void (*guest_debug_pre)(struct kvm_vcpu *vcpu); - int (*get_msr)(struct kvm_vcpu *vcpu, u32 msr_index, u64 *pdata); - int (*set_msr)(struct kvm_vcpu *vcpu, u32 msr_index, u64 data); - u64 (*get_segment_base)(struct kvm_vcpu *vcpu, int seg); - void (*get_segment)(struct kvm_vcpu *vcpu, - struct kvm_segment *var, int seg); - int (*get_cpl)(struct kvm_vcpu *vcpu); - void (*set_segment)(struct kvm_vcpu *vcpu, - struct kvm_segment *var, int seg); - void (*get_cs_db_l_bits)(struct kvm_vcpu *vcpu, int *db, int *l); - void (*decache_cr4_guest_bits)(struct kvm_vcpu *vcpu); - void (*set_cr0)(struct kvm_vcpu *vcpu, unsigned long cr0); - void (*set_cr3)(struct kvm_vcpu *vcpu, unsigned long cr3); - void (*set_cr4)(struct kvm_vcpu *vcpu, unsigned long cr4); - void (*set_efer)(struct kvm_vcpu *vcpu, u64 efer); - void (*get_idt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt); - void (*set_idt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt); - void (*get_gdt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt); - void (*set_gdt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt); - unsigned long (*get_dr)(struct kvm_vcpu *vcpu, int dr); - void (*set_dr)(struct kvm_vcpu *vcpu, int dr, unsigned long value, - int *exception); - void (*cache_reg)(struct kvm_vcpu *vcpu, enum kvm_reg reg); - unsigned long (*get_rflags)(struct kvm_vcpu *vcpu); - void (*set_rflags)(struct kvm_vcpu *vcpu, unsigned long rflags); - - void (*tlb_flush)(struct kvm_vcpu *vcpu); - - void (*run)(struct kvm_vcpu *vcpu, struct kvm_run *run); - int (*handle_exit)(struct kvm_run *run, struct kvm_vcpu *vcpu); - void (*skip_emulated_instruction)(struct kvm_vcpu *vcpu); - void (*patch_hypercall)(struct kvm_vcpu *vcpu, - unsigned char *hypercall_addr); - int (*get_irq)(struct kvm_vcpu *vcpu); - void (*set_irq)(struct kvm_vcpu *vcpu, int vec); - void (*queue_exception)(struct kvm_vcpu *vcpu, unsigned nr, - bool has_error_code, u32 error_code); - bool (*exception_injected)(struct kvm_vcpu *vcpu); - void (*inject_pending_irq)(struct kvm_vcpu *vcpu); - void (*inject_pending_vectors)(struct kvm_vcpu *vcpu, - struct kvm_run *run); - - int (*set_tss_addr)(struct kvm *kvm, unsigned int addr); - int (*get_tdp_level)(void); -}; - -extern struct kvm_x86_ops *kvm_x86_ops; - -int kvm_mmu_module_init(void); -void kvm_mmu_module_exit(void); - -void kvm_mmu_destroy(struct kvm_vcpu *vcpu); -int kvm_mmu_create(struct kvm_vcpu *vcpu); -int kvm_mmu_setup(struct kvm_vcpu *vcpu); -void kvm_mmu_set_nonpresent_ptes(u64 trap_pte, u64 notrap_pte); -void kvm_mmu_set_base_ptes(u64 base_pte); -void kvm_mmu_set_mask_ptes(u64 user_mask, u64 accessed_mask, - u64 dirty_mask, u64 nx_mask, u64 x_mask); - -int kvm_mmu_reset_context(struct kvm_vcpu *vcpu); -void kvm_mmu_slot_remove_write_access(struct kvm *kvm, int slot); -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 emulator_write_phys(struct kvm_vcpu *vcpu, gpa_t gpa, - const void *val, int bytes); -int kvm_pv_mmu_op(struct kvm_vcpu *vcpu, unsigned long bytes, - gpa_t addr, unsigned long *ret); - -extern bool tdp_enabled; - -enum emulation_result { - EMULATE_DONE, /* no further processing */ - EMULATE_DO_MMIO, /* kvm_run filled with mmio request */ - EMULATE_FAIL, /* can't emulate this instruction */ -}; - -#define EMULTYPE_NO_DECODE (1 << 0) -#define EMULTYPE_TRAP_UD (1 << 1) -int emulate_instruction(struct kvm_vcpu *vcpu, struct kvm_run *run, - unsigned long cr2, u16 error_code, int emulation_type); -void kvm_report_emulation_failure(struct kvm_vcpu *cvpu, const char *context); -void realmode_lgdt(struct kvm_vcpu *vcpu, u16 size, unsigned long address); -void realmode_lidt(struct kvm_vcpu *vcpu, u16 size, unsigned long address); -void realmode_lmsw(struct kvm_vcpu *vcpu, unsigned long msw, - unsigned long *rflags); - -unsigned long realmode_get_cr(struct kvm_vcpu *vcpu, int cr); -void realmode_set_cr(struct kvm_vcpu *vcpu, int cr, unsigned long value, - unsigned long *rflags); -void kvm_enable_efer_bits(u64); -int kvm_get_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 *data); -int kvm_set_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 data); - -struct x86_emulate_ctxt; - -int kvm_emulate_pio(struct kvm_vcpu *vcpu, struct kvm_run *run, int in, - int size, unsigned port); -int kvm_emulate_pio_string(struct kvm_vcpu *vcpu, struct kvm_run *run, int in, - int size, unsigned long count, int down, - gva_t address, int rep, unsigned port); -void kvm_emulate_cpuid(struct kvm_vcpu *vcpu); -int kvm_emulate_halt(struct kvm_vcpu *vcpu); -int emulate_invlpg(struct kvm_vcpu *vcpu, gva_t address); -int emulate_clts(struct kvm_vcpu *vcpu); -int emulator_get_dr(struct x86_emulate_ctxt *ctxt, int dr, - unsigned long *dest); -int emulator_set_dr(struct x86_emulate_ctxt *ctxt, int dr, - unsigned long value); - -void kvm_get_segment(struct kvm_vcpu *vcpu, struct kvm_segment *var, int seg); -int kvm_load_segment_descriptor(struct kvm_vcpu *vcpu, u16 selector, - int type_bits, int seg); - -int kvm_task_switch(struct kvm_vcpu *vcpu, u16 tss_selector, int reason); - -void kvm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0); -void kvm_set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3); -void kvm_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4); -void kvm_set_cr8(struct kvm_vcpu *vcpu, unsigned long cr8); -unsigned long kvm_get_cr8(struct kvm_vcpu *vcpu); -void kvm_lmsw(struct kvm_vcpu *vcpu, unsigned long msw); -void kvm_get_cs_db_l_bits(struct kvm_vcpu *vcpu, int *db, int *l); - -int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata); -int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data); - -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_inject_page_fault(struct kvm_vcpu *vcpu, unsigned long cr2, - u32 error_code); - -void kvm_pic_set_irq(void *opaque, int irq, int level); - -void kvm_inject_nmi(struct kvm_vcpu *vcpu); - -void fx_init(struct kvm_vcpu *vcpu); - -int emulator_read_std(unsigned long addr, - void *val, - unsigned int bytes, - struct kvm_vcpu *vcpu); -int emulator_write_emulated(unsigned long addr, - const void *val, - unsigned int bytes, - struct kvm_vcpu *vcpu); - -unsigned long segment_base(u16 selector); - -void kvm_mmu_flush_tlb(struct kvm_vcpu *vcpu); -void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa, - const u8 *new, int bytes); -int kvm_mmu_unprotect_page_virt(struct kvm_vcpu *vcpu, gva_t gva); -void __kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu); -int kvm_mmu_load(struct kvm_vcpu *vcpu); -void kvm_mmu_unload(struct kvm_vcpu *vcpu); -void kvm_mmu_sync_roots(struct kvm_vcpu *vcpu); - -int kvm_emulate_hypercall(struct kvm_vcpu *vcpu); - -int kvm_fix_hypercall(struct kvm_vcpu *vcpu); - -int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t gva, u32 error_code); -void kvm_mmu_invlpg(struct kvm_vcpu *vcpu, gva_t gva); - -void kvm_enable_tdp(void); -void kvm_disable_tdp(void); - -int load_pdptrs(struct kvm_vcpu *vcpu, unsigned long cr3); -int complete_pio(struct kvm_vcpu *vcpu); - -static inline struct kvm_mmu_page *page_header(hpa_t shadow_page) -{ - struct page *page = pfn_to_page(shadow_page >> PAGE_SHIFT); - - 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; - asm("sldt %0" : "=g"(ldt)); - 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)); -} - -static inline void kvm_get_idt(struct descriptor_table *table) -{ - asm("sidt %0" : "=m"(*table)); -} - -static inline void kvm_get_gdt(struct descriptor_table *table) -{ - asm("sgdt %0" : "=m"(*table)); -} - -static inline unsigned long kvm_read_tr_base(void) -{ - u16 tr; - asm("str %0" : "=g"(tr)); - return segment_base(tr); -} - -#ifdef CONFIG_X86_64 -static inline unsigned long read_msr(unsigned long msr) -{ - u64 value; - - rdmsrl(msr, value); - return value; -} -#endif - -static inline void kvm_fx_save(struct i387_fxsave_struct *image) -{ - asm("fxsave (%0)":: "r" (image)); -} - -static inline void kvm_fx_restore(struct i387_fxsave_struct *image) -{ - asm("fxrstor (%0)":: "r" (image)); -} - -static inline void kvm_fx_finit(void) -{ - asm("finit"); -} - -static inline u32 get_rdx_init_val(void) -{ - return 0x600; /* P6 family */ -} - -static inline void kvm_inject_gp(struct kvm_vcpu *vcpu, u32 error_code) -{ - kvm_queue_exception_e(vcpu, GP_VECTOR, error_code); -} - -#define ASM_VMX_VMCLEAR_RAX ".byte 0x66, 0x0f, 0xc7, 0x30" -#define ASM_VMX_VMLAUNCH ".byte 0x0f, 0x01, 0xc2" -#define ASM_VMX_VMRESUME ".byte 0x0f, 0x01, 0xc3" -#define ASM_VMX_VMPTRLD_RAX ".byte 0x0f, 0xc7, 0x30" -#define ASM_VMX_VMREAD_RDX_RAX ".byte 0x0f, 0x78, 0xd0" -#define ASM_VMX_VMWRITE_RAX_RDX ".byte 0x0f, 0x79, 0xd0" -#define ASM_VMX_VMWRITE_RSP_RDX ".byte 0x0f, 0x79, 0xd4" -#define ASM_VMX_VMXOFF ".byte 0x0f, 0x01, 0xc4" -#define ASM_VMX_VMXON_RAX ".byte 0xf3, 0x0f, 0xc7, 0x30" -#define ASM_VMX_INVEPT ".byte 0x66, 0x0f, 0x38, 0x80, 0x08" -#define ASM_VMX_INVVPID ".byte 0x66, 0x0f, 0x38, 0x81, 0x08" - -#define MSR_IA32_TIME_STAMP_COUNTER 0x010 - -#define TSS_IOPB_BASE_OFFSET 0x66 -#define TSS_BASE_SIZE 0x68 -#define TSS_IOPB_SIZE (65536 / 8) -#define TSS_REDIRECTION_SIZE (256 / 8) -#define RMODE_TSS_SIZE \ - (TSS_BASE_SIZE + TSS_REDIRECTION_SIZE + TSS_IOPB_SIZE + 1) - -enum { - TASK_SWITCH_CALL = 0, - TASK_SWITCH_IRET = 1, - TASK_SWITCH_JMP = 2, - TASK_SWITCH_GATE = 3, -}; - -/* - * Hardware virtualization extension instructions may fault if a - * reboot turns off virtualization while processes are running. - * Trap the fault and ignore the instruction if that happens. - */ -asmlinkage void kvm_handle_fault_on_reboot(void); - -#define __kvm_handle_fault_on_reboot(insn) \ - "666: " insn "\n\t" \ - ".pushsection .fixup, \"ax\" \n" \ - "667: \n\t" \ - __ASM_SIZE(push) " $666b \n\t" \ - "jmp kvm_handle_fault_on_reboot \n\t" \ - ".popsection \n\t" \ - ".pushsection __ex_table, \"a\" \n\t" \ - _ASM_PTR " 666b, 667b \n\t" \ - ".popsection" - -#define KVM_ARCH_WANT_MMU_NOTIFIER -int kvm_unmap_hva(struct kvm *kvm, unsigned long hva); -int kvm_age_hva(struct kvm *kvm, unsigned long hva); - -#endif /* ASM_X86__KVM_HOST_H */ -- cgit v1.2.3