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.
11 #ifndef _ASM_X86_KVM_HOST_H
12 #define _ASM_X86_KVM_HOST_H
14 #include <linux/types.h>
16 #include <linux/mmu_notifier.h>
17 #include <linux/tracepoint.h>
18 #include <linux/cpumask.h>
19 #include <linux/irq_work.h>
21 #include <linux/kvm.h>
22 #include <linux/kvm_para.h>
23 #include <linux/kvm_types.h>
24 #include <linux/perf_event.h>
25 #include <linux/pvclock_gtod.h>
26 #include <linux/clocksource.h>
27 #include <linux/irqbypass.h>
28 #include <linux/hyperv.h>
31 #include <asm/pvclock-abi.h>
34 #include <asm/msr-index.h>
36 #include <asm/kvm_page_track.h>
38 #define KVM_MAX_VCPUS 288
39 #define KVM_SOFT_MAX_VCPUS 240
40 #define KVM_MAX_VCPU_ID 1023
41 #define KVM_USER_MEM_SLOTS 509
42 /* memory slots that are not exposed to userspace */
43 #define KVM_PRIVATE_MEM_SLOTS 3
44 #define KVM_MEM_SLOTS_NUM (KVM_USER_MEM_SLOTS + KVM_PRIVATE_MEM_SLOTS)
46 #define KVM_PIO_PAGE_OFFSET 1
47 #define KVM_COALESCED_MMIO_PAGE_OFFSET 2
48 #define KVM_HALT_POLL_NS_DEFAULT 400000
50 #define KVM_IRQCHIP_NUM_PINS KVM_IOAPIC_NUM_PINS
52 /* x86-specific vcpu->requests bit members */
53 #define KVM_REQ_MIGRATE_TIMER 8
54 #define KVM_REQ_REPORT_TPR_ACCESS 9
55 #define KVM_REQ_TRIPLE_FAULT 10
56 #define KVM_REQ_MMU_SYNC 11
57 #define KVM_REQ_CLOCK_UPDATE 12
58 #define KVM_REQ_DEACTIVATE_FPU 13
59 #define KVM_REQ_EVENT 14
60 #define KVM_REQ_APF_HALT 15
61 #define KVM_REQ_STEAL_UPDATE 16
62 #define KVM_REQ_NMI 17
63 #define KVM_REQ_PMU 18
64 #define KVM_REQ_PMI 19
65 #define KVM_REQ_SMI 20
66 #define KVM_REQ_MASTERCLOCK_UPDATE 21
67 #define KVM_REQ_MCLOCK_INPROGRESS 22
68 #define KVM_REQ_SCAN_IOAPIC 23
69 #define KVM_REQ_GLOBAL_CLOCK_UPDATE 24
70 #define KVM_REQ_APIC_PAGE_RELOAD 25
71 #define KVM_REQ_HV_CRASH 26
72 #define KVM_REQ_IOAPIC_EOI_EXIT 27
73 #define KVM_REQ_HV_RESET 28
74 #define KVM_REQ_HV_EXIT 29
75 #define KVM_REQ_HV_STIMER 30
77 #define CR0_RESERVED_BITS \
78 (~(unsigned long)(X86_CR0_PE | X86_CR0_MP | X86_CR0_EM | X86_CR0_TS \
79 | X86_CR0_ET | X86_CR0_NE | X86_CR0_WP | X86_CR0_AM \
80 | X86_CR0_NW | X86_CR0_CD | X86_CR0_PG))
82 #define CR3_L_MODE_RESERVED_BITS 0xFFFFFF0000000000ULL
83 #define CR3_PCID_INVD BIT_64(63)
84 #define CR4_RESERVED_BITS \
85 (~(unsigned long)(X86_CR4_VME | X86_CR4_PVI | X86_CR4_TSD | X86_CR4_DE\
86 | X86_CR4_PSE | X86_CR4_PAE | X86_CR4_MCE \
87 | X86_CR4_PGE | X86_CR4_PCE | X86_CR4_OSFXSR | X86_CR4_PCIDE \
88 | X86_CR4_OSXSAVE | X86_CR4_SMEP | X86_CR4_FSGSBASE \
89 | X86_CR4_OSXMMEXCPT | X86_CR4_VMXE | X86_CR4_SMAP \
92 #define CR8_RESERVED_BITS (~(unsigned long)X86_CR8_TPR)
96 #define INVALID_PAGE (~(hpa_t)0)
97 #define VALID_PAGE(x) ((x) != INVALID_PAGE)
99 #define UNMAPPED_GVA (~(gpa_t)0)
101 /* KVM Hugepage definitions for x86 */
102 #define KVM_NR_PAGE_SIZES 3
103 #define KVM_HPAGE_GFN_SHIFT(x) (((x) - 1) * 9)
104 #define KVM_HPAGE_SHIFT(x) (PAGE_SHIFT + KVM_HPAGE_GFN_SHIFT(x))
105 #define KVM_HPAGE_SIZE(x) (1UL << KVM_HPAGE_SHIFT(x))
106 #define KVM_HPAGE_MASK(x) (~(KVM_HPAGE_SIZE(x) - 1))
107 #define KVM_PAGES_PER_HPAGE(x) (KVM_HPAGE_SIZE(x) / PAGE_SIZE)
109 static inline gfn_t gfn_to_index(gfn_t gfn, gfn_t base_gfn, int level)
111 /* KVM_HPAGE_GFN_SHIFT(PT_PAGE_TABLE_LEVEL) must be 0. */
112 return (gfn >> KVM_HPAGE_GFN_SHIFT(level)) -
113 (base_gfn >> KVM_HPAGE_GFN_SHIFT(level));
116 #define KVM_PERMILLE_MMU_PAGES 20
117 #define KVM_MIN_ALLOC_MMU_PAGES 64
118 #define KVM_MMU_HASH_SHIFT 10
119 #define KVM_NUM_MMU_PAGES (1 << KVM_MMU_HASH_SHIFT)
120 #define KVM_MIN_FREE_MMU_PAGES 5
121 #define KVM_REFILL_PAGES 25
122 #define KVM_MAX_CPUID_ENTRIES 80
123 #define KVM_NR_FIXED_MTRR_REGION 88
124 #define KVM_NR_VAR_MTRR 8
126 #define ASYNC_PF_PER_VCPU 64
152 VCPU_EXREG_PDPTR = NR_VCPU_REGS,
169 #include <asm/kvm_emulate.h>
171 #define KVM_NR_MEM_OBJS 40
173 #define KVM_NR_DB_REGS 4
175 #define DR6_BD (1 << 13)
176 #define DR6_BS (1 << 14)
177 #define DR6_RTM (1 << 16)
178 #define DR6_FIXED_1 0xfffe0ff0
179 #define DR6_INIT 0xffff0ff0
180 #define DR6_VOLATILE 0x0001e00f
182 #define DR7_BP_EN_MASK 0x000000ff
183 #define DR7_GE (1 << 9)
184 #define DR7_GD (1 << 13)
185 #define DR7_FIXED_1 0x00000400
186 #define DR7_VOLATILE 0xffff2bff
188 #define PFERR_PRESENT_BIT 0
189 #define PFERR_WRITE_BIT 1
190 #define PFERR_USER_BIT 2
191 #define PFERR_RSVD_BIT 3
192 #define PFERR_FETCH_BIT 4
193 #define PFERR_PK_BIT 5
194 #define PFERR_GUEST_FINAL_BIT 32
195 #define PFERR_GUEST_PAGE_BIT 33
197 #define PFERR_PRESENT_MASK (1U << PFERR_PRESENT_BIT)
198 #define PFERR_WRITE_MASK (1U << PFERR_WRITE_BIT)
199 #define PFERR_USER_MASK (1U << PFERR_USER_BIT)
200 #define PFERR_RSVD_MASK (1U << PFERR_RSVD_BIT)
201 #define PFERR_FETCH_MASK (1U << PFERR_FETCH_BIT)
202 #define PFERR_PK_MASK (1U << PFERR_PK_BIT)
203 #define PFERR_GUEST_FINAL_MASK (1ULL << PFERR_GUEST_FINAL_BIT)
204 #define PFERR_GUEST_PAGE_MASK (1ULL << PFERR_GUEST_PAGE_BIT)
206 #define PFERR_NESTED_GUEST_PAGE (PFERR_GUEST_PAGE_MASK | \
211 /* apic attention bits */
212 #define KVM_APIC_CHECK_VAPIC 0
214 * The following bit is set with PV-EOI, unset on EOI.
215 * We detect PV-EOI changes by guest by comparing
216 * this bit with PV-EOI in guest memory.
217 * See the implementation in apic_update_pv_eoi.
219 #define KVM_APIC_PV_EOI_PENDING 1
221 struct kvm_kernel_irq_routing_entry;
224 * We don't want allocation failures within the mmu code, so we preallocate
225 * enough memory for a single page fault in a cache.
227 struct kvm_mmu_memory_cache {
229 void *objects[KVM_NR_MEM_OBJS];
233 * the pages used as guest page table on soft mmu are tracked by
234 * kvm_memory_slot.arch.gfn_track which is 16 bits, so the role bits used
235 * by indirect shadow page can not be more than 15 bits.
237 * Currently, we used 14 bits that are @level, @cr4_pae, @quadrant, @access,
238 * @nxe, @cr0_wp, @smep_andnot_wp and @smap_andnot_wp.
240 union kvm_mmu_page_role {
251 unsigned smep_andnot_wp:1;
252 unsigned smap_andnot_wp:1;
256 * This is left at the top of the word so that
257 * kvm_memslots_for_spte_role can extract it with a
258 * simple shift. While there is room, give it a whole
259 * byte so it is also faster to load it from memory.
265 struct kvm_rmap_head {
269 struct kvm_mmu_page {
270 struct list_head link;
271 struct hlist_node hash_link;
274 * The following two entries are used to key the shadow page in the
278 union kvm_mmu_page_role role;
281 /* hold the gfn of each spte inside spt */
284 int root_count; /* Currently serving as active root */
285 unsigned int unsync_children;
286 struct kvm_rmap_head parent_ptes; /* rmap pointers to parent sptes */
288 /* The page is obsolete if mmu_valid_gen != kvm->arch.mmu_valid_gen. */
289 unsigned long mmu_valid_gen;
291 DECLARE_BITMAP(unsync_child_bitmap, 512);
295 * Used out of the mmu-lock to avoid reading spte values while an
296 * update is in progress; see the comments in __get_spte_lockless().
298 int clear_spte_count;
301 /* Number of writes since the last time traversal visited this page. */
302 atomic_t write_flooding_count;
305 struct kvm_pio_request {
312 struct rsvd_bits_validate {
313 u64 rsvd_bits_mask[2][4];
318 * x86 supports 3 paging modes (4-level 64-bit, 3-level 64-bit, and 2-level
319 * 32-bit). The kvm_mmu structure abstracts the details of the current mmu
323 void (*set_cr3)(struct kvm_vcpu *vcpu, unsigned long root);
324 unsigned long (*get_cr3)(struct kvm_vcpu *vcpu);
325 u64 (*get_pdptr)(struct kvm_vcpu *vcpu, int index);
326 int (*page_fault)(struct kvm_vcpu *vcpu, gva_t gva, u32 err,
328 void (*inject_page_fault)(struct kvm_vcpu *vcpu,
329 struct x86_exception *fault);
330 gpa_t (*gva_to_gpa)(struct kvm_vcpu *vcpu, gva_t gva, u32 access,
331 struct x86_exception *exception);
332 gpa_t (*translate_gpa)(struct kvm_vcpu *vcpu, gpa_t gpa, u32 access,
333 struct x86_exception *exception);
334 int (*sync_page)(struct kvm_vcpu *vcpu,
335 struct kvm_mmu_page *sp);
336 void (*invlpg)(struct kvm_vcpu *vcpu, gva_t gva);
337 void (*update_pte)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp,
338 u64 *spte, const void *pte);
341 int shadow_root_level;
342 union kvm_mmu_page_role base_role;
346 * Bitmap; bit set = permission fault
347 * Byte index: page fault error code [4:1]
348 * Bit index: pte permissions in ACC_* format
353 * The pkru_mask indicates if protection key checks are needed. It
354 * consists of 16 domains indexed by page fault error code bits [4:1],
355 * with PFEC.RSVD replaced by ACC_USER_MASK from the page tables.
356 * Each domain has 2 bits which are ANDed with AD and WD from PKRU.
364 * check zero bits on shadow page table entries, these
365 * bits include not only hardware reserved bits but also
366 * the bits spte never used.
368 struct rsvd_bits_validate shadow_zero_check;
370 struct rsvd_bits_validate guest_rsvd_check;
372 /* Can have large pages at levels 2..last_nonleaf_level-1. */
373 u8 last_nonleaf_level;
377 u64 pdptrs[4]; /* pae */
390 struct perf_event *perf_event;
391 struct kvm_vcpu *vcpu;
395 unsigned nr_arch_gp_counters;
396 unsigned nr_arch_fixed_counters;
397 unsigned available_event_types;
402 u64 counter_bitmask[2];
403 u64 global_ctrl_mask;
406 struct kvm_pmc gp_counters[INTEL_PMC_MAX_GENERIC];
407 struct kvm_pmc fixed_counters[INTEL_PMC_MAX_FIXED];
408 struct irq_work irq_work;
415 KVM_DEBUGREG_BP_ENABLED = 1,
416 KVM_DEBUGREG_WONT_EXIT = 2,
417 KVM_DEBUGREG_RELOAD = 4,
420 struct kvm_mtrr_range {
423 struct list_head node;
427 struct kvm_mtrr_range var_ranges[KVM_NR_VAR_MTRR];
428 mtrr_type fixed_ranges[KVM_NR_FIXED_MTRR_REGION];
431 struct list_head head;
434 /* Hyper-V SynIC timer */
435 struct kvm_vcpu_hv_stimer {
436 struct hrtimer timer;
441 struct hv_message msg;
445 /* Hyper-V synthetic interrupt controller (SynIC)*/
446 struct kvm_vcpu_hv_synic {
451 atomic64_t sint[HV_SYNIC_SINT_COUNT];
452 atomic_t sint_to_gsi[HV_SYNIC_SINT_COUNT];
453 DECLARE_BITMAP(auto_eoi_bitmap, 256);
454 DECLARE_BITMAP(vec_bitmap, 256);
458 /* Hyper-V per vcpu emulation context */
462 struct kvm_vcpu_hv_synic synic;
463 struct kvm_hyperv_exit exit;
464 struct kvm_vcpu_hv_stimer stimer[HV_SYNIC_STIMER_COUNT];
465 DECLARE_BITMAP(stimer_pending_bitmap, HV_SYNIC_STIMER_COUNT);
468 struct kvm_vcpu_arch {
470 * rip and regs accesses must go through
471 * kvm_{register,rip}_{read,write} functions.
473 unsigned long regs[NR_VCPU_REGS];
478 unsigned long cr0_guest_owned_bits;
482 unsigned long cr4_guest_owned_bits;
487 struct kvm_lapic *apic; /* kernel irqchip context */
489 DECLARE_BITMAP(ioapic_handled_vectors, 256);
490 unsigned long apic_attention;
491 int32_t apic_arb_prio;
493 u64 ia32_misc_enable_msr;
495 bool tpr_access_reporting;
499 * Paging state of the vcpu
501 * If the vcpu runs in guest mode with two level paging this still saves
502 * the paging mode of the l1 guest. This context is always used to
508 * Paging state of an L2 guest (used for nested npt)
510 * This context will save all necessary information to walk page tables
511 * of the an L2 guest. This context is only initialized for page table
512 * walking and not for faulting since we never handle l2 page faults on
515 struct kvm_mmu nested_mmu;
518 * Pointer to the mmu context currently used for
519 * gva_to_gpa translations.
521 struct kvm_mmu *walk_mmu;
523 struct kvm_mmu_memory_cache mmu_pte_list_desc_cache;
524 struct kvm_mmu_memory_cache mmu_page_cache;
525 struct kvm_mmu_memory_cache mmu_page_header_cache;
527 struct fpu guest_fpu;
529 u64 guest_supported_xcr0;
530 u32 guest_xstate_size;
532 struct kvm_pio_request pio;
535 u8 event_exit_inst_len;
537 struct kvm_queued_exception {
545 struct kvm_queued_interrupt {
551 int halt_request; /* real mode on Intel only */
554 struct kvm_cpuid_entry2 cpuid_entries[KVM_MAX_CPUID_ENTRIES];
558 /* emulate context */
560 struct x86_emulate_ctxt emulate_ctxt;
561 bool emulate_regs_need_sync_to_vcpu;
562 bool emulate_regs_need_sync_from_vcpu;
563 int (*complete_userspace_io)(struct kvm_vcpu *vcpu);
566 struct pvclock_vcpu_time_info hv_clock;
567 unsigned int hw_tsc_khz;
568 struct gfn_to_hva_cache pv_time;
569 bool pv_time_enabled;
570 /* set guest stopped flag in pvclock flags field */
571 bool pvclock_set_guest_stopped_request;
576 struct gfn_to_hva_cache stime;
577 struct kvm_steal_time steal;
583 u64 tsc_offset_adjustment;
586 u64 this_tsc_generation;
588 bool tsc_always_catchup;
589 s8 virtual_tsc_shift;
590 u32 virtual_tsc_mult;
592 s64 ia32_tsc_adjust_msr;
593 u64 tsc_scaling_ratio;
595 atomic_t nmi_queued; /* unprocessed asynchronous NMIs */
596 unsigned nmi_pending; /* NMI queued after currently running handler */
597 bool nmi_injected; /* Trying to inject an NMI this entry */
598 bool smi_pending; /* SMI queued after currently running handler */
600 struct kvm_mtrr mtrr_state;
603 unsigned switch_db_regs;
604 unsigned long db[KVM_NR_DB_REGS];
607 unsigned long eff_db[KVM_NR_DB_REGS];
608 unsigned long guest_debug_dr7;
616 /* Cache MMIO info */
624 /* used for guest single stepping over the given code position */
625 unsigned long singlestep_rip;
627 struct kvm_vcpu_hv hyperv;
629 cpumask_var_t wbinvd_dirty_mask;
631 unsigned long last_retry_eip;
632 unsigned long last_retry_addr;
636 gfn_t gfns[roundup_pow_of_two(ASYNC_PF_PER_VCPU)];
637 struct gfn_to_hva_cache data;
643 /* OSVW MSRs (AMD only) */
651 struct gfn_to_hva_cache data;
655 * Indicate whether the access faults on its page table in guest
656 * which is set when fix page fault and used to detect unhandeable
659 bool write_fault_to_shadow_pgtable;
661 /* set at EPT violation at this point */
662 unsigned long exit_qualification;
664 /* pv related host specific info */
669 int pending_ioapic_eoi;
670 int pending_external_vector;
673 struct kvm_lpage_info {
677 struct kvm_arch_memory_slot {
678 struct kvm_rmap_head *rmap[KVM_NR_PAGE_SIZES];
679 struct kvm_lpage_info *lpage_info[KVM_NR_PAGE_SIZES - 1];
680 unsigned short *gfn_track[KVM_PAGE_TRACK_MAX];
684 * We use as the mode the number of bits allocated in the LDR for the
685 * logical processor ID. It happens that these are all powers of two.
686 * This makes it is very easy to detect cases where the APICs are
687 * configured for multiple modes; in that case, we cannot use the map and
688 * hence cannot use kvm_irq_delivery_to_apic_fast either.
690 #define KVM_APIC_MODE_XAPIC_CLUSTER 4
691 #define KVM_APIC_MODE_XAPIC_FLAT 8
692 #define KVM_APIC_MODE_X2APIC 16
694 struct kvm_apic_map {
699 struct kvm_lapic *xapic_flat_map[8];
700 struct kvm_lapic *xapic_cluster_map[16][4];
702 struct kvm_lapic *phys_map[];
705 /* Hyper-V emulation context */
707 struct mutex hv_lock;
712 /* Hyper-v based guest crash (NT kernel bugcheck) parameters */
713 u64 hv_crash_param[HV_X64_MSR_CRASH_PARAMS];
716 HV_REFERENCE_TSC_PAGE tsc_ref;
720 unsigned int n_used_mmu_pages;
721 unsigned int n_requested_mmu_pages;
722 unsigned int n_max_mmu_pages;
723 unsigned int indirect_shadow_pages;
724 unsigned long mmu_valid_gen;
725 struct hlist_head mmu_page_hash[KVM_NUM_MMU_PAGES];
727 * Hash table of struct kvm_mmu_page.
729 struct list_head active_mmu_pages;
730 struct list_head zapped_obsolete_pages;
731 struct kvm_page_track_notifier_node mmu_sp_tracker;
732 struct kvm_page_track_notifier_head track_notifier_head;
734 struct list_head assigned_dev_head;
735 struct iommu_domain *iommu_domain;
736 bool iommu_noncoherent;
737 #define __KVM_HAVE_ARCH_NONCOHERENT_DMA
738 atomic_t noncoherent_dma_count;
739 #define __KVM_HAVE_ARCH_ASSIGNED_DEVICE
740 atomic_t assigned_device_count;
741 struct kvm_pic *vpic;
742 struct kvm_ioapic *vioapic;
743 struct kvm_pit *vpit;
744 atomic_t vapics_in_nmi_mode;
745 struct mutex apic_map_lock;
746 struct kvm_apic_map *apic_map;
748 unsigned int tss_addr;
749 bool apic_access_page_done;
753 bool ept_identity_pagetable_done;
754 gpa_t ept_identity_map_addr;
756 unsigned long irq_sources_bitmap;
758 raw_spinlock_t tsc_write_lock;
765 u64 cur_tsc_generation;
766 int nr_vcpus_matched_tsc;
768 spinlock_t pvclock_gtod_sync_lock;
769 bool use_master_clock;
770 u64 master_kernel_ns;
771 u64 master_cycle_now;
772 struct delayed_work kvmclock_update_work;
773 struct delayed_work kvmclock_sync_work;
775 struct kvm_xen_hvm_config xen_hvm_config;
777 /* reads protected by irq_srcu, writes by irq_lock */
778 struct hlist_head mask_notifier_list;
780 struct kvm_hv hyperv;
782 #ifdef CONFIG_KVM_MMU_AUDIT
786 bool boot_vcpu_runs_old_kvmclock;
792 u8 nr_reserved_ioapic_pins;
794 bool disabled_lapic_found;
796 /* Struct members for AVIC */
799 struct page *avic_logical_id_table_page;
800 struct page *avic_physical_id_table_page;
801 struct hlist_node hnode;
804 bool x2apic_broadcast_quirk_disabled;
808 ulong mmu_shadow_zapped;
810 ulong mmu_pte_updated;
811 ulong mmu_pde_zapped;
814 ulong mmu_cache_miss;
816 ulong remote_tlb_flush;
820 struct kvm_vcpu_stat {
830 u64 irq_window_exits;
831 u64 nmi_window_exits;
833 u64 halt_successful_poll;
834 u64 halt_attempted_poll;
835 u64 halt_poll_invalid;
837 u64 request_irq_exits;
839 u64 host_state_reload;
843 u64 insn_emulation_fail;
849 struct x86_instruction_info;
857 struct kvm_lapic_irq {
869 int (*cpu_has_kvm_support)(void); /* __init */
870 int (*disabled_by_bios)(void); /* __init */
871 int (*hardware_enable)(void);
872 void (*hardware_disable)(void);
873 void (*check_processor_compatibility)(void *rtn);
874 int (*hardware_setup)(void); /* __init */
875 void (*hardware_unsetup)(void); /* __exit */
876 bool (*cpu_has_accelerated_tpr)(void);
877 bool (*cpu_has_high_real_mode_segbase)(void);
878 void (*cpuid_update)(struct kvm_vcpu *vcpu);
880 int (*vm_init)(struct kvm *kvm);
881 void (*vm_destroy)(struct kvm *kvm);
883 /* Create, but do not attach this VCPU */
884 struct kvm_vcpu *(*vcpu_create)(struct kvm *kvm, unsigned id);
885 void (*vcpu_free)(struct kvm_vcpu *vcpu);
886 void (*vcpu_reset)(struct kvm_vcpu *vcpu, bool init_event);
888 void (*prepare_guest_switch)(struct kvm_vcpu *vcpu);
889 void (*vcpu_load)(struct kvm_vcpu *vcpu, int cpu);
890 void (*vcpu_put)(struct kvm_vcpu *vcpu);
892 void (*update_bp_intercept)(struct kvm_vcpu *vcpu);
893 int (*get_msr)(struct kvm_vcpu *vcpu, struct msr_data *msr);
894 int (*set_msr)(struct kvm_vcpu *vcpu, struct msr_data *msr);
895 u64 (*get_segment_base)(struct kvm_vcpu *vcpu, int seg);
896 void (*get_segment)(struct kvm_vcpu *vcpu,
897 struct kvm_segment *var, int seg);
898 int (*get_cpl)(struct kvm_vcpu *vcpu);
899 void (*set_segment)(struct kvm_vcpu *vcpu,
900 struct kvm_segment *var, int seg);
901 void (*get_cs_db_l_bits)(struct kvm_vcpu *vcpu, int *db, int *l);
902 void (*decache_cr0_guest_bits)(struct kvm_vcpu *vcpu);
903 void (*decache_cr3)(struct kvm_vcpu *vcpu);
904 void (*decache_cr4_guest_bits)(struct kvm_vcpu *vcpu);
905 void (*set_cr0)(struct kvm_vcpu *vcpu, unsigned long cr0);
906 void (*set_cr3)(struct kvm_vcpu *vcpu, unsigned long cr3);
907 int (*set_cr4)(struct kvm_vcpu *vcpu, unsigned long cr4);
908 void (*set_efer)(struct kvm_vcpu *vcpu, u64 efer);
909 void (*get_idt)(struct kvm_vcpu *vcpu, struct desc_ptr *dt);
910 void (*set_idt)(struct kvm_vcpu *vcpu, struct desc_ptr *dt);
911 void (*get_gdt)(struct kvm_vcpu *vcpu, struct desc_ptr *dt);
912 void (*set_gdt)(struct kvm_vcpu *vcpu, struct desc_ptr *dt);
913 u64 (*get_dr6)(struct kvm_vcpu *vcpu);
914 void (*set_dr6)(struct kvm_vcpu *vcpu, unsigned long value);
915 void (*sync_dirty_debug_regs)(struct kvm_vcpu *vcpu);
916 void (*set_dr7)(struct kvm_vcpu *vcpu, unsigned long value);
917 void (*cache_reg)(struct kvm_vcpu *vcpu, enum kvm_reg reg);
918 unsigned long (*get_rflags)(struct kvm_vcpu *vcpu);
919 void (*set_rflags)(struct kvm_vcpu *vcpu, unsigned long rflags);
920 u32 (*get_pkru)(struct kvm_vcpu *vcpu);
921 void (*fpu_activate)(struct kvm_vcpu *vcpu);
922 void (*fpu_deactivate)(struct kvm_vcpu *vcpu);
924 void (*tlb_flush)(struct kvm_vcpu *vcpu);
926 void (*run)(struct kvm_vcpu *vcpu);
927 int (*handle_exit)(struct kvm_vcpu *vcpu);
928 void (*skip_emulated_instruction)(struct kvm_vcpu *vcpu);
929 void (*set_interrupt_shadow)(struct kvm_vcpu *vcpu, int mask);
930 u32 (*get_interrupt_shadow)(struct kvm_vcpu *vcpu);
931 void (*patch_hypercall)(struct kvm_vcpu *vcpu,
932 unsigned char *hypercall_addr);
933 void (*set_irq)(struct kvm_vcpu *vcpu);
934 void (*set_nmi)(struct kvm_vcpu *vcpu);
935 void (*queue_exception)(struct kvm_vcpu *vcpu, unsigned nr,
936 bool has_error_code, u32 error_code,
938 void (*cancel_injection)(struct kvm_vcpu *vcpu);
939 int (*interrupt_allowed)(struct kvm_vcpu *vcpu);
940 int (*nmi_allowed)(struct kvm_vcpu *vcpu);
941 bool (*get_nmi_mask)(struct kvm_vcpu *vcpu);
942 void (*set_nmi_mask)(struct kvm_vcpu *vcpu, bool masked);
943 void (*enable_nmi_window)(struct kvm_vcpu *vcpu);
944 void (*enable_irq_window)(struct kvm_vcpu *vcpu);
945 void (*update_cr8_intercept)(struct kvm_vcpu *vcpu, int tpr, int irr);
946 bool (*get_enable_apicv)(void);
947 void (*refresh_apicv_exec_ctrl)(struct kvm_vcpu *vcpu);
948 void (*hwapic_irr_update)(struct kvm_vcpu *vcpu, int max_irr);
949 void (*hwapic_isr_update)(struct kvm_vcpu *vcpu, int isr);
950 void (*load_eoi_exitmap)(struct kvm_vcpu *vcpu, u64 *eoi_exit_bitmap);
951 void (*set_virtual_x2apic_mode)(struct kvm_vcpu *vcpu, bool set);
952 void (*set_apic_access_page_addr)(struct kvm_vcpu *vcpu, hpa_t hpa);
953 void (*deliver_posted_interrupt)(struct kvm_vcpu *vcpu, int vector);
954 void (*sync_pir_to_irr)(struct kvm_vcpu *vcpu);
955 int (*set_tss_addr)(struct kvm *kvm, unsigned int addr);
956 int (*get_tdp_level)(void);
957 u64 (*get_mt_mask)(struct kvm_vcpu *vcpu, gfn_t gfn, bool is_mmio);
958 int (*get_lpage_level)(void);
959 bool (*rdtscp_supported)(void);
960 bool (*invpcid_supported)(void);
962 void (*set_tdp_cr3)(struct kvm_vcpu *vcpu, unsigned long cr3);
964 void (*set_supported_cpuid)(u32 func, struct kvm_cpuid_entry2 *entry);
966 bool (*has_wbinvd_exit)(void);
968 void (*write_tsc_offset)(struct kvm_vcpu *vcpu, u64 offset);
970 void (*get_exit_info)(struct kvm_vcpu *vcpu, u64 *info1, u64 *info2);
972 int (*check_intercept)(struct kvm_vcpu *vcpu,
973 struct x86_instruction_info *info,
974 enum x86_intercept_stage stage);
975 void (*handle_external_intr)(struct kvm_vcpu *vcpu);
976 bool (*mpx_supported)(void);
977 bool (*xsaves_supported)(void);
979 int (*check_nested_events)(struct kvm_vcpu *vcpu, bool external_intr);
981 void (*sched_in)(struct kvm_vcpu *kvm, int cpu);
984 * Arch-specific dirty logging hooks. These hooks are only supposed to
985 * be valid if the specific arch has hardware-accelerated dirty logging
986 * mechanism. Currently only for PML on VMX.
988 * - slot_enable_log_dirty:
989 * called when enabling log dirty mode for the slot.
990 * - slot_disable_log_dirty:
991 * called when disabling log dirty mode for the slot.
992 * also called when slot is created with log dirty disabled.
994 * called before reporting dirty_bitmap to userspace.
995 * - enable_log_dirty_pt_masked:
996 * called when reenabling log dirty for the GFNs in the mask after
997 * corresponding bits are cleared in slot->dirty_bitmap.
999 void (*slot_enable_log_dirty)(struct kvm *kvm,
1000 struct kvm_memory_slot *slot);
1001 void (*slot_disable_log_dirty)(struct kvm *kvm,
1002 struct kvm_memory_slot *slot);
1003 void (*flush_log_dirty)(struct kvm *kvm);
1004 void (*enable_log_dirty_pt_masked)(struct kvm *kvm,
1005 struct kvm_memory_slot *slot,
1006 gfn_t offset, unsigned long mask);
1007 /* pmu operations of sub-arch */
1008 const struct kvm_pmu_ops *pmu_ops;
1011 * Architecture specific hooks for vCPU blocking due to
1013 * Returns for .pre_block():
1014 * - 0 means continue to block the vCPU.
1015 * - 1 means we cannot block the vCPU since some event
1016 * happens during this period, such as, 'ON' bit in
1017 * posted-interrupts descriptor is set.
1019 int (*pre_block)(struct kvm_vcpu *vcpu);
1020 void (*post_block)(struct kvm_vcpu *vcpu);
1022 void (*vcpu_blocking)(struct kvm_vcpu *vcpu);
1023 void (*vcpu_unblocking)(struct kvm_vcpu *vcpu);
1025 int (*update_pi_irte)(struct kvm *kvm, unsigned int host_irq,
1026 uint32_t guest_irq, bool set);
1027 void (*apicv_post_state_restore)(struct kvm_vcpu *vcpu);
1029 int (*set_hv_timer)(struct kvm_vcpu *vcpu, u64 guest_deadline_tsc);
1030 void (*cancel_hv_timer)(struct kvm_vcpu *vcpu);
1032 void (*setup_mce)(struct kvm_vcpu *vcpu);
1035 struct kvm_arch_async_pf {
1042 extern struct kvm_x86_ops *kvm_x86_ops;
1044 int kvm_mmu_module_init(void);
1045 void kvm_mmu_module_exit(void);
1047 void kvm_mmu_destroy(struct kvm_vcpu *vcpu);
1048 int kvm_mmu_create(struct kvm_vcpu *vcpu);
1049 void kvm_mmu_setup(struct kvm_vcpu *vcpu);
1050 void kvm_mmu_init_vm(struct kvm *kvm);
1051 void kvm_mmu_uninit_vm(struct kvm *kvm);
1052 void kvm_mmu_set_mask_ptes(u64 user_mask, u64 accessed_mask,
1053 u64 dirty_mask, u64 nx_mask, u64 x_mask, u64 p_mask);
1055 void kvm_mmu_reset_context(struct kvm_vcpu *vcpu);
1056 void kvm_mmu_slot_remove_write_access(struct kvm *kvm,
1057 struct kvm_memory_slot *memslot);
1058 void kvm_mmu_zap_collapsible_sptes(struct kvm *kvm,
1059 const struct kvm_memory_slot *memslot);
1060 void kvm_mmu_slot_leaf_clear_dirty(struct kvm *kvm,
1061 struct kvm_memory_slot *memslot);
1062 void kvm_mmu_slot_largepage_remove_write_access(struct kvm *kvm,
1063 struct kvm_memory_slot *memslot);
1064 void kvm_mmu_slot_set_dirty(struct kvm *kvm,
1065 struct kvm_memory_slot *memslot);
1066 void kvm_mmu_clear_dirty_pt_masked(struct kvm *kvm,
1067 struct kvm_memory_slot *slot,
1068 gfn_t gfn_offset, unsigned long mask);
1069 void kvm_mmu_zap_all(struct kvm *kvm);
1070 void kvm_mmu_invalidate_mmio_sptes(struct kvm *kvm, struct kvm_memslots *slots);
1071 unsigned int kvm_mmu_calculate_mmu_pages(struct kvm *kvm);
1072 void kvm_mmu_change_mmu_pages(struct kvm *kvm, unsigned int kvm_nr_mmu_pages);
1074 int load_pdptrs(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu, unsigned long cr3);
1075 bool pdptrs_changed(struct kvm_vcpu *vcpu);
1077 int emulator_write_phys(struct kvm_vcpu *vcpu, gpa_t gpa,
1078 const void *val, int bytes);
1080 struct kvm_irq_mask_notifier {
1081 void (*func)(struct kvm_irq_mask_notifier *kimn, bool masked);
1083 struct hlist_node link;
1086 void kvm_register_irq_mask_notifier(struct kvm *kvm, int irq,
1087 struct kvm_irq_mask_notifier *kimn);
1088 void kvm_unregister_irq_mask_notifier(struct kvm *kvm, int irq,
1089 struct kvm_irq_mask_notifier *kimn);
1090 void kvm_fire_mask_notifiers(struct kvm *kvm, unsigned irqchip, unsigned pin,
1093 extern bool tdp_enabled;
1095 u64 vcpu_tsc_khz(struct kvm_vcpu *vcpu);
1097 /* control of guest tsc rate supported? */
1098 extern bool kvm_has_tsc_control;
1099 /* maximum supported tsc_khz for guests */
1100 extern u32 kvm_max_guest_tsc_khz;
1101 /* number of bits of the fractional part of the TSC scaling ratio */
1102 extern u8 kvm_tsc_scaling_ratio_frac_bits;
1103 /* maximum allowed value of TSC scaling ratio */
1104 extern u64 kvm_max_tsc_scaling_ratio;
1105 /* 1ull << kvm_tsc_scaling_ratio_frac_bits */
1106 extern u64 kvm_default_tsc_scaling_ratio;
1108 extern u64 kvm_mce_cap_supported;
1110 enum emulation_result {
1111 EMULATE_DONE, /* no further processing */
1112 EMULATE_USER_EXIT, /* kvm_run ready for userspace exit */
1113 EMULATE_FAIL, /* can't emulate this instruction */
1116 #define EMULTYPE_NO_DECODE (1 << 0)
1117 #define EMULTYPE_TRAP_UD (1 << 1)
1118 #define EMULTYPE_SKIP (1 << 2)
1119 #define EMULTYPE_RETRY (1 << 3)
1120 #define EMULTYPE_NO_REEXECUTE (1 << 4)
1121 int x86_emulate_instruction(struct kvm_vcpu *vcpu, unsigned long cr2,
1122 int emulation_type, void *insn, int insn_len);
1124 static inline int emulate_instruction(struct kvm_vcpu *vcpu,
1127 return x86_emulate_instruction(vcpu, 0, emulation_type, NULL, 0);
1130 void kvm_enable_efer_bits(u64);
1131 bool kvm_valid_efer(struct kvm_vcpu *vcpu, u64 efer);
1132 int kvm_get_msr(struct kvm_vcpu *vcpu, struct msr_data *msr);
1133 int kvm_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr);
1135 struct x86_emulate_ctxt;
1137 int kvm_fast_pio_out(struct kvm_vcpu *vcpu, int size, unsigned short port);
1138 int kvm_fast_pio_in(struct kvm_vcpu *vcpu, int size, unsigned short port);
1139 int kvm_emulate_cpuid(struct kvm_vcpu *vcpu);
1140 int kvm_emulate_halt(struct kvm_vcpu *vcpu);
1141 int kvm_vcpu_halt(struct kvm_vcpu *vcpu);
1142 int kvm_emulate_wbinvd(struct kvm_vcpu *vcpu);
1144 void kvm_get_segment(struct kvm_vcpu *vcpu, struct kvm_segment *var, int seg);
1145 int kvm_load_segment_descriptor(struct kvm_vcpu *vcpu, u16 selector, int seg);
1146 void kvm_vcpu_deliver_sipi_vector(struct kvm_vcpu *vcpu, u8 vector);
1148 int kvm_task_switch(struct kvm_vcpu *vcpu, u16 tss_selector, int idt_index,
1149 int reason, bool has_error_code, u32 error_code);
1151 int kvm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0);
1152 int kvm_set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3);
1153 int kvm_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4);
1154 int kvm_set_cr8(struct kvm_vcpu *vcpu, unsigned long cr8);
1155 int kvm_set_dr(struct kvm_vcpu *vcpu, int dr, unsigned long val);
1156 int kvm_get_dr(struct kvm_vcpu *vcpu, int dr, unsigned long *val);
1157 unsigned long kvm_get_cr8(struct kvm_vcpu *vcpu);
1158 void kvm_lmsw(struct kvm_vcpu *vcpu, unsigned long msw);
1159 void kvm_get_cs_db_l_bits(struct kvm_vcpu *vcpu, int *db, int *l);
1160 int kvm_set_xcr(struct kvm_vcpu *vcpu, u32 index, u64 xcr);
1162 int kvm_get_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr);
1163 int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr);
1165 unsigned long kvm_get_rflags(struct kvm_vcpu *vcpu);
1166 void kvm_set_rflags(struct kvm_vcpu *vcpu, unsigned long rflags);
1167 bool kvm_rdpmc(struct kvm_vcpu *vcpu);
1169 void kvm_queue_exception(struct kvm_vcpu *vcpu, unsigned nr);
1170 void kvm_queue_exception_e(struct kvm_vcpu *vcpu, unsigned nr, u32 error_code);
1171 void kvm_requeue_exception(struct kvm_vcpu *vcpu, unsigned nr);
1172 void kvm_requeue_exception_e(struct kvm_vcpu *vcpu, unsigned nr, u32 error_code);
1173 void kvm_inject_page_fault(struct kvm_vcpu *vcpu, struct x86_exception *fault);
1174 int kvm_read_guest_page_mmu(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu,
1175 gfn_t gfn, void *data, int offset, int len,
1177 bool kvm_require_cpl(struct kvm_vcpu *vcpu, int required_cpl);
1178 bool kvm_require_dr(struct kvm_vcpu *vcpu, int dr);
1180 static inline int __kvm_irq_line_state(unsigned long *irq_state,
1181 int irq_source_id, int level)
1183 /* Logical OR for level trig interrupt */
1185 __set_bit(irq_source_id, irq_state);
1187 __clear_bit(irq_source_id, irq_state);
1189 return !!(*irq_state);
1192 int kvm_pic_set_irq(struct kvm_pic *pic, int irq, int irq_source_id, int level);
1193 void kvm_pic_clear_all(struct kvm_pic *pic, int irq_source_id);
1195 void kvm_inject_nmi(struct kvm_vcpu *vcpu);
1197 int kvm_mmu_unprotect_page(struct kvm *kvm, gfn_t gfn);
1198 int kvm_mmu_unprotect_page_virt(struct kvm_vcpu *vcpu, gva_t gva);
1199 void __kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu);
1200 int kvm_mmu_load(struct kvm_vcpu *vcpu);
1201 void kvm_mmu_unload(struct kvm_vcpu *vcpu);
1202 void kvm_mmu_sync_roots(struct kvm_vcpu *vcpu);
1203 gpa_t translate_nested_gpa(struct kvm_vcpu *vcpu, gpa_t gpa, u32 access,
1204 struct x86_exception *exception);
1205 gpa_t kvm_mmu_gva_to_gpa_read(struct kvm_vcpu *vcpu, gva_t gva,
1206 struct x86_exception *exception);
1207 gpa_t kvm_mmu_gva_to_gpa_fetch(struct kvm_vcpu *vcpu, gva_t gva,
1208 struct x86_exception *exception);
1209 gpa_t kvm_mmu_gva_to_gpa_write(struct kvm_vcpu *vcpu, gva_t gva,
1210 struct x86_exception *exception);
1211 gpa_t kvm_mmu_gva_to_gpa_system(struct kvm_vcpu *vcpu, gva_t gva,
1212 struct x86_exception *exception);
1214 void kvm_vcpu_deactivate_apicv(struct kvm_vcpu *vcpu);
1216 int kvm_emulate_hypercall(struct kvm_vcpu *vcpu);
1218 int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t gva, u64 error_code,
1219 void *insn, int insn_len);
1220 void kvm_mmu_invlpg(struct kvm_vcpu *vcpu, gva_t gva);
1221 void kvm_mmu_new_cr3(struct kvm_vcpu *vcpu);
1223 void kvm_enable_tdp(void);
1224 void kvm_disable_tdp(void);
1226 static inline gpa_t translate_gpa(struct kvm_vcpu *vcpu, gpa_t gpa, u32 access,
1227 struct x86_exception *exception)
1232 static inline struct kvm_mmu_page *page_header(hpa_t shadow_page)
1234 struct page *page = pfn_to_page(shadow_page >> PAGE_SHIFT);
1236 return (struct kvm_mmu_page *)page_private(page);
1239 static inline u16 kvm_read_ldt(void)
1242 asm("sldt %0" : "=g"(ldt));
1246 static inline void kvm_load_ldt(u16 sel)
1248 asm("lldt %0" : : "rm"(sel));
1251 #ifdef CONFIG_X86_64
1252 static inline unsigned long read_msr(unsigned long msr)
1261 static inline u32 get_rdx_init_val(void)
1263 return 0x600; /* P6 family */
1266 static inline void kvm_inject_gp(struct kvm_vcpu *vcpu, u32 error_code)
1268 kvm_queue_exception_e(vcpu, GP_VECTOR, error_code);
1271 static inline u64 get_canonical(u64 la)
1273 return ((int64_t)la << 16) >> 16;
1276 static inline bool is_noncanonical_address(u64 la)
1278 #ifdef CONFIG_X86_64
1279 return get_canonical(la) != la;
1285 #define TSS_IOPB_BASE_OFFSET 0x66
1286 #define TSS_BASE_SIZE 0x68
1287 #define TSS_IOPB_SIZE (65536 / 8)
1288 #define TSS_REDIRECTION_SIZE (256 / 8)
1289 #define RMODE_TSS_SIZE \
1290 (TSS_BASE_SIZE + TSS_REDIRECTION_SIZE + TSS_IOPB_SIZE + 1)
1293 TASK_SWITCH_CALL = 0,
1294 TASK_SWITCH_IRET = 1,
1295 TASK_SWITCH_JMP = 2,
1296 TASK_SWITCH_GATE = 3,
1299 #define HF_GIF_MASK (1 << 0)
1300 #define HF_HIF_MASK (1 << 1)
1301 #define HF_VINTR_MASK (1 << 2)
1302 #define HF_NMI_MASK (1 << 3)
1303 #define HF_IRET_MASK (1 << 4)
1304 #define HF_GUEST_MASK (1 << 5) /* VCPU is in guest-mode */
1305 #define HF_SMM_MASK (1 << 6)
1306 #define HF_SMM_INSIDE_NMI_MASK (1 << 7)
1308 #define __KVM_VCPU_MULTIPLE_ADDRESS_SPACE
1309 #define KVM_ADDRESS_SPACE_NUM 2
1311 #define kvm_arch_vcpu_memslots_id(vcpu) ((vcpu)->arch.hflags & HF_SMM_MASK ? 1 : 0)
1312 #define kvm_memslots_for_spte_role(kvm, role) __kvm_memslots(kvm, (role).smm)
1315 * Hardware virtualization extension instructions may fault if a
1316 * reboot turns off virtualization while processes are running.
1317 * Trap the fault and ignore the instruction if that happens.
1319 asmlinkage void kvm_spurious_fault(void);
1321 #define ____kvm_handle_fault_on_reboot(insn, cleanup_insn) \
1322 "666: " insn "\n\t" \
1324 ".pushsection .fixup, \"ax\" \n" \
1326 cleanup_insn "\n\t" \
1327 "cmpb $0, kvm_rebooting \n\t" \
1329 __ASM_SIZE(push) " $666b \n\t" \
1330 "call kvm_spurious_fault \n\t" \
1331 ".popsection \n\t" \
1332 _ASM_EXTABLE(666b, 667b)
1334 #define __kvm_handle_fault_on_reboot(insn) \
1335 ____kvm_handle_fault_on_reboot(insn, "")
1337 #define KVM_ARCH_WANT_MMU_NOTIFIER
1338 int kvm_unmap_hva(struct kvm *kvm, unsigned long hva);
1339 int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end);
1340 int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
1341 int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
1342 void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
1343 int kvm_cpu_has_injectable_intr(struct kvm_vcpu *v);
1344 int kvm_cpu_has_interrupt(struct kvm_vcpu *vcpu);
1345 int kvm_arch_interrupt_allowed(struct kvm_vcpu *vcpu);
1346 int kvm_cpu_get_interrupt(struct kvm_vcpu *v);
1347 void kvm_vcpu_reset(struct kvm_vcpu *vcpu, bool init_event);
1348 void kvm_vcpu_reload_apic_access_page(struct kvm_vcpu *vcpu);
1349 void kvm_arch_mmu_notifier_invalidate_page(struct kvm *kvm,
1350 unsigned long address);
1352 void kvm_define_shared_msr(unsigned index, u32 msr);
1353 int kvm_set_shared_msr(unsigned index, u64 val, u64 mask);
1355 u64 kvm_scale_tsc(struct kvm_vcpu *vcpu, u64 tsc);
1356 u64 kvm_read_l1_tsc(struct kvm_vcpu *vcpu, u64 host_tsc);
1358 unsigned long kvm_get_linear_rip(struct kvm_vcpu *vcpu);
1359 bool kvm_is_linear_rip(struct kvm_vcpu *vcpu, unsigned long linear_rip);
1361 void kvm_make_mclock_inprogress_request(struct kvm *kvm);
1362 void kvm_make_scan_ioapic_request(struct kvm *kvm);
1364 void kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu,
1365 struct kvm_async_pf *work);
1366 void kvm_arch_async_page_present(struct kvm_vcpu *vcpu,
1367 struct kvm_async_pf *work);
1368 void kvm_arch_async_page_ready(struct kvm_vcpu *vcpu,
1369 struct kvm_async_pf *work);
1370 bool kvm_arch_can_inject_async_page_present(struct kvm_vcpu *vcpu);
1371 extern bool kvm_find_async_pf_gfn(struct kvm_vcpu *vcpu, gfn_t gfn);
1373 int kvm_skip_emulated_instruction(struct kvm_vcpu *vcpu);
1374 int kvm_complete_insn_gp(struct kvm_vcpu *vcpu, int err);
1376 int kvm_is_in_guest(void);
1378 int __x86_set_memory_region(struct kvm *kvm, int id, gpa_t gpa, u32 size);
1379 int x86_set_memory_region(struct kvm *kvm, int id, gpa_t gpa, u32 size);
1380 bool kvm_vcpu_is_reset_bsp(struct kvm_vcpu *vcpu);
1381 bool kvm_vcpu_is_bsp(struct kvm_vcpu *vcpu);
1383 bool kvm_intr_is_single_vcpu(struct kvm *kvm, struct kvm_lapic_irq *irq,
1384 struct kvm_vcpu **dest_vcpu);
1386 void kvm_set_msi_irq(struct kvm *kvm, struct kvm_kernel_irq_routing_entry *e,
1387 struct kvm_lapic_irq *irq);
1389 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu)
1391 if (kvm_x86_ops->vcpu_blocking)
1392 kvm_x86_ops->vcpu_blocking(vcpu);
1395 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu)
1397 if (kvm_x86_ops->vcpu_unblocking)
1398 kvm_x86_ops->vcpu_unblocking(vcpu);
1401 static inline void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu) {}
1403 static inline int kvm_cpu_get_apicid(int mps_cpu)
1405 #ifdef CONFIG_X86_LOCAL_APIC
1406 return __default_cpu_present_to_apicid(mps_cpu);
1413 #endif /* _ASM_X86_KVM_HOST_H */