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>
20 #include <linux/irq.h>
22 #include <linux/kvm.h>
23 #include <linux/kvm_para.h>
24 #include <linux/kvm_types.h>
25 #include <linux/perf_event.h>
26 #include <linux/pvclock_gtod.h>
27 #include <linux/clocksource.h>
28 #include <linux/irqbypass.h>
29 #include <linux/hyperv.h>
32 #include <asm/pvclock-abi.h>
35 #include <asm/msr-index.h>
37 #include <asm/kvm_page_track.h>
38 #include <asm/hyperv-tlfs.h>
40 #define KVM_MAX_VCPUS 288
41 #define KVM_SOFT_MAX_VCPUS 240
42 #define KVM_MAX_VCPU_ID 1023
43 #define KVM_USER_MEM_SLOTS 509
44 /* memory slots that are not exposed to userspace */
45 #define KVM_PRIVATE_MEM_SLOTS 3
46 #define KVM_MEM_SLOTS_NUM (KVM_USER_MEM_SLOTS + KVM_PRIVATE_MEM_SLOTS)
48 #define KVM_HALT_POLL_NS_DEFAULT 200000
50 #define KVM_IRQCHIP_NUM_PINS KVM_IOAPIC_NUM_PINS
52 /* x86-specific vcpu->requests bit members */
53 #define KVM_REQ_MIGRATE_TIMER KVM_ARCH_REQ(0)
54 #define KVM_REQ_REPORT_TPR_ACCESS KVM_ARCH_REQ(1)
55 #define KVM_REQ_TRIPLE_FAULT KVM_ARCH_REQ(2)
56 #define KVM_REQ_MMU_SYNC KVM_ARCH_REQ(3)
57 #define KVM_REQ_CLOCK_UPDATE KVM_ARCH_REQ(4)
58 #define KVM_REQ_LOAD_CR3 KVM_ARCH_REQ(5)
59 #define KVM_REQ_EVENT KVM_ARCH_REQ(6)
60 #define KVM_REQ_APF_HALT KVM_ARCH_REQ(7)
61 #define KVM_REQ_STEAL_UPDATE KVM_ARCH_REQ(8)
62 #define KVM_REQ_NMI KVM_ARCH_REQ(9)
63 #define KVM_REQ_PMU KVM_ARCH_REQ(10)
64 #define KVM_REQ_PMI KVM_ARCH_REQ(11)
65 #define KVM_REQ_SMI KVM_ARCH_REQ(12)
66 #define KVM_REQ_MASTERCLOCK_UPDATE KVM_ARCH_REQ(13)
67 #define KVM_REQ_MCLOCK_INPROGRESS \
68 KVM_ARCH_REQ_FLAGS(14, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
69 #define KVM_REQ_SCAN_IOAPIC \
70 KVM_ARCH_REQ_FLAGS(15, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
71 #define KVM_REQ_GLOBAL_CLOCK_UPDATE KVM_ARCH_REQ(16)
72 #define KVM_REQ_APIC_PAGE_RELOAD \
73 KVM_ARCH_REQ_FLAGS(17, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
74 #define KVM_REQ_HV_CRASH KVM_ARCH_REQ(18)
75 #define KVM_REQ_IOAPIC_EOI_EXIT KVM_ARCH_REQ(19)
76 #define KVM_REQ_HV_RESET KVM_ARCH_REQ(20)
77 #define KVM_REQ_HV_EXIT KVM_ARCH_REQ(21)
78 #define KVM_REQ_HV_STIMER KVM_ARCH_REQ(22)
79 #define KVM_REQ_LOAD_EOI_EXITMAP KVM_ARCH_REQ(23)
80 #define KVM_REQ_GET_VMCS12_PAGES KVM_ARCH_REQ(24)
82 #define CR0_RESERVED_BITS \
83 (~(unsigned long)(X86_CR0_PE | X86_CR0_MP | X86_CR0_EM | X86_CR0_TS \
84 | X86_CR0_ET | X86_CR0_NE | X86_CR0_WP | X86_CR0_AM \
85 | X86_CR0_NW | X86_CR0_CD | X86_CR0_PG))
87 #define CR4_RESERVED_BITS \
88 (~(unsigned long)(X86_CR4_VME | X86_CR4_PVI | X86_CR4_TSD | X86_CR4_DE\
89 | X86_CR4_PSE | X86_CR4_PAE | X86_CR4_MCE \
90 | X86_CR4_PGE | X86_CR4_PCE | X86_CR4_OSFXSR | X86_CR4_PCIDE \
91 | X86_CR4_OSXSAVE | X86_CR4_SMEP | X86_CR4_FSGSBASE \
92 | X86_CR4_OSXMMEXCPT | X86_CR4_LA57 | X86_CR4_VMXE \
93 | X86_CR4_SMAP | X86_CR4_PKE | X86_CR4_UMIP))
95 #define CR8_RESERVED_BITS (~(unsigned long)X86_CR8_TPR)
99 #define INVALID_PAGE (~(hpa_t)0)
100 #define VALID_PAGE(x) ((x) != INVALID_PAGE)
102 #define UNMAPPED_GVA (~(gpa_t)0)
104 /* KVM Hugepage definitions for x86 */
105 #define KVM_NR_PAGE_SIZES 3
106 #define KVM_HPAGE_GFN_SHIFT(x) (((x) - 1) * 9)
107 #define KVM_HPAGE_SHIFT(x) (PAGE_SHIFT + KVM_HPAGE_GFN_SHIFT(x))
108 #define KVM_HPAGE_SIZE(x) (1UL << KVM_HPAGE_SHIFT(x))
109 #define KVM_HPAGE_MASK(x) (~(KVM_HPAGE_SIZE(x) - 1))
110 #define KVM_PAGES_PER_HPAGE(x) (KVM_HPAGE_SIZE(x) / PAGE_SIZE)
112 static inline gfn_t gfn_to_index(gfn_t gfn, gfn_t base_gfn, int level)
114 /* KVM_HPAGE_GFN_SHIFT(PT_PAGE_TABLE_LEVEL) must be 0. */
115 return (gfn >> KVM_HPAGE_GFN_SHIFT(level)) -
116 (base_gfn >> KVM_HPAGE_GFN_SHIFT(level));
119 #define KVM_PERMILLE_MMU_PAGES 20
120 #define KVM_MIN_ALLOC_MMU_PAGES 64
121 #define KVM_MMU_HASH_SHIFT 12
122 #define KVM_NUM_MMU_PAGES (1 << KVM_MMU_HASH_SHIFT)
123 #define KVM_MIN_FREE_MMU_PAGES 5
124 #define KVM_REFILL_PAGES 25
125 #define KVM_MAX_CPUID_ENTRIES 80
126 #define KVM_NR_FIXED_MTRR_REGION 88
127 #define KVM_NR_VAR_MTRR 8
129 #define ASYNC_PF_PER_VCPU 64
155 VCPU_EXREG_PDPTR = NR_VCPU_REGS,
172 #include <asm/kvm_emulate.h>
174 #define KVM_NR_MEM_OBJS 40
176 #define KVM_NR_DB_REGS 4
178 #define DR6_BD (1 << 13)
179 #define DR6_BS (1 << 14)
180 #define DR6_RTM (1 << 16)
181 #define DR6_FIXED_1 0xfffe0ff0
182 #define DR6_INIT 0xffff0ff0
183 #define DR6_VOLATILE 0x0001e00f
185 #define DR7_BP_EN_MASK 0x000000ff
186 #define DR7_GE (1 << 9)
187 #define DR7_GD (1 << 13)
188 #define DR7_FIXED_1 0x00000400
189 #define DR7_VOLATILE 0xffff2bff
191 #define PFERR_PRESENT_BIT 0
192 #define PFERR_WRITE_BIT 1
193 #define PFERR_USER_BIT 2
194 #define PFERR_RSVD_BIT 3
195 #define PFERR_FETCH_BIT 4
196 #define PFERR_PK_BIT 5
197 #define PFERR_GUEST_FINAL_BIT 32
198 #define PFERR_GUEST_PAGE_BIT 33
200 #define PFERR_PRESENT_MASK (1U << PFERR_PRESENT_BIT)
201 #define PFERR_WRITE_MASK (1U << PFERR_WRITE_BIT)
202 #define PFERR_USER_MASK (1U << PFERR_USER_BIT)
203 #define PFERR_RSVD_MASK (1U << PFERR_RSVD_BIT)
204 #define PFERR_FETCH_MASK (1U << PFERR_FETCH_BIT)
205 #define PFERR_PK_MASK (1U << PFERR_PK_BIT)
206 #define PFERR_GUEST_FINAL_MASK (1ULL << PFERR_GUEST_FINAL_BIT)
207 #define PFERR_GUEST_PAGE_MASK (1ULL << PFERR_GUEST_PAGE_BIT)
209 #define PFERR_NESTED_GUEST_PAGE (PFERR_GUEST_PAGE_MASK | \
214 * The mask used to denote special SPTEs, which can be either MMIO SPTEs or
215 * Access Tracking SPTEs. We use bit 62 instead of bit 63 to avoid conflicting
216 * with the SVE bit in EPT PTEs.
218 #define SPTE_SPECIAL_MASK (1ULL << 62)
220 /* apic attention bits */
221 #define KVM_APIC_CHECK_VAPIC 0
223 * The following bit is set with PV-EOI, unset on EOI.
224 * We detect PV-EOI changes by guest by comparing
225 * this bit with PV-EOI in guest memory.
226 * See the implementation in apic_update_pv_eoi.
228 #define KVM_APIC_PV_EOI_PENDING 1
230 struct kvm_kernel_irq_routing_entry;
233 * We don't want allocation failures within the mmu code, so we preallocate
234 * enough memory for a single page fault in a cache.
236 struct kvm_mmu_memory_cache {
238 void *objects[KVM_NR_MEM_OBJS];
242 * the pages used as guest page table on soft mmu are tracked by
243 * kvm_memory_slot.arch.gfn_track which is 16 bits, so the role bits used
244 * by indirect shadow page can not be more than 15 bits.
246 * Currently, we used 14 bits that are @level, @cr4_pae, @quadrant, @access,
247 * @nxe, @cr0_wp, @smep_andnot_wp and @smap_andnot_wp.
249 union kvm_mmu_page_role {
260 unsigned smep_andnot_wp:1;
261 unsigned smap_andnot_wp:1;
262 unsigned ad_disabled:1;
263 unsigned guest_mode:1;
267 * This is left at the top of the word so that
268 * kvm_memslots_for_spte_role can extract it with a
269 * simple shift. While there is room, give it a whole
270 * byte so it is also faster to load it from memory.
276 struct kvm_rmap_head {
280 struct kvm_mmu_page {
281 struct list_head link;
282 struct hlist_node hash_link;
285 * The following two entries are used to key the shadow page in the
289 union kvm_mmu_page_role role;
292 /* hold the gfn of each spte inside spt */
295 int root_count; /* Currently serving as active root */
296 unsigned int unsync_children;
297 struct kvm_rmap_head parent_ptes; /* rmap pointers to parent sptes */
299 /* The page is obsolete if mmu_valid_gen != kvm->arch.mmu_valid_gen. */
300 unsigned long mmu_valid_gen;
302 DECLARE_BITMAP(unsync_child_bitmap, 512);
306 * Used out of the mmu-lock to avoid reading spte values while an
307 * update is in progress; see the comments in __get_spte_lockless().
309 int clear_spte_count;
312 /* Number of writes since the last time traversal visited this page. */
313 atomic_t write_flooding_count;
316 struct kvm_pio_request {
323 #define PT64_ROOT_MAX_LEVEL 5
325 struct rsvd_bits_validate {
326 u64 rsvd_bits_mask[2][PT64_ROOT_MAX_LEVEL];
330 struct kvm_mmu_root_info {
335 #define KVM_MMU_ROOT_INFO_INVALID \
336 ((struct kvm_mmu_root_info) { .cr3 = INVALID_PAGE, .hpa = INVALID_PAGE })
338 #define KVM_MMU_NUM_PREV_ROOTS 3
341 * x86 supports 4 paging modes (5-level 64-bit, 4-level 64-bit, 3-level 32-bit,
342 * and 2-level 32-bit). The kvm_mmu structure abstracts the details of the
346 void (*set_cr3)(struct kvm_vcpu *vcpu, unsigned long root);
347 unsigned long (*get_cr3)(struct kvm_vcpu *vcpu);
348 u64 (*get_pdptr)(struct kvm_vcpu *vcpu, int index);
349 int (*page_fault)(struct kvm_vcpu *vcpu, gva_t gva, u32 err,
351 void (*inject_page_fault)(struct kvm_vcpu *vcpu,
352 struct x86_exception *fault);
353 gpa_t (*gva_to_gpa)(struct kvm_vcpu *vcpu, gva_t gva, u32 access,
354 struct x86_exception *exception);
355 gpa_t (*translate_gpa)(struct kvm_vcpu *vcpu, gpa_t gpa, u32 access,
356 struct x86_exception *exception);
357 int (*sync_page)(struct kvm_vcpu *vcpu,
358 struct kvm_mmu_page *sp);
359 void (*invlpg)(struct kvm_vcpu *vcpu, gva_t gva, hpa_t root_hpa);
360 void (*update_pte)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp,
361 u64 *spte, const void *pte);
363 union kvm_mmu_page_role base_role;
365 u8 shadow_root_level;
368 struct kvm_mmu_root_info prev_roots[KVM_MMU_NUM_PREV_ROOTS];
371 * Bitmap; bit set = permission fault
372 * Byte index: page fault error code [4:1]
373 * Bit index: pte permissions in ACC_* format
378 * The pkru_mask indicates if protection key checks are needed. It
379 * consists of 16 domains indexed by page fault error code bits [4:1],
380 * with PFEC.RSVD replaced by ACC_USER_MASK from the page tables.
381 * Each domain has 2 bits which are ANDed with AD and WD from PKRU.
389 * check zero bits on shadow page table entries, these
390 * bits include not only hardware reserved bits but also
391 * the bits spte never used.
393 struct rsvd_bits_validate shadow_zero_check;
395 struct rsvd_bits_validate guest_rsvd_check;
397 /* Can have large pages at levels 2..last_nonleaf_level-1. */
398 u8 last_nonleaf_level;
402 u64 pdptrs[4]; /* pae */
415 struct perf_event *perf_event;
416 struct kvm_vcpu *vcpu;
420 unsigned nr_arch_gp_counters;
421 unsigned nr_arch_fixed_counters;
422 unsigned available_event_types;
427 u64 counter_bitmask[2];
428 u64 global_ctrl_mask;
431 struct kvm_pmc gp_counters[INTEL_PMC_MAX_GENERIC];
432 struct kvm_pmc fixed_counters[INTEL_PMC_MAX_FIXED];
433 struct irq_work irq_work;
440 KVM_DEBUGREG_BP_ENABLED = 1,
441 KVM_DEBUGREG_WONT_EXIT = 2,
442 KVM_DEBUGREG_RELOAD = 4,
445 struct kvm_mtrr_range {
448 struct list_head node;
452 struct kvm_mtrr_range var_ranges[KVM_NR_VAR_MTRR];
453 mtrr_type fixed_ranges[KVM_NR_FIXED_MTRR_REGION];
456 struct list_head head;
459 /* Hyper-V SynIC timer */
460 struct kvm_vcpu_hv_stimer {
461 struct hrtimer timer;
466 struct hv_message msg;
470 /* Hyper-V synthetic interrupt controller (SynIC)*/
471 struct kvm_vcpu_hv_synic {
476 atomic64_t sint[HV_SYNIC_SINT_COUNT];
477 atomic_t sint_to_gsi[HV_SYNIC_SINT_COUNT];
478 DECLARE_BITMAP(auto_eoi_bitmap, 256);
479 DECLARE_BITMAP(vec_bitmap, 256);
481 bool dont_zero_synic_pages;
484 /* Hyper-V per vcpu emulation context */
489 struct kvm_vcpu_hv_synic synic;
490 struct kvm_hyperv_exit exit;
491 struct kvm_vcpu_hv_stimer stimer[HV_SYNIC_STIMER_COUNT];
492 DECLARE_BITMAP(stimer_pending_bitmap, HV_SYNIC_STIMER_COUNT);
496 struct kvm_vcpu_arch {
498 * rip and regs accesses must go through
499 * kvm_{register,rip}_{read,write} functions.
501 unsigned long regs[NR_VCPU_REGS];
506 unsigned long cr0_guest_owned_bits;
510 unsigned long cr4_guest_owned_bits;
516 struct kvm_lapic *apic; /* kernel irqchip context */
518 bool load_eoi_exitmap_pending;
519 DECLARE_BITMAP(ioapic_handled_vectors, 256);
520 unsigned long apic_attention;
521 int32_t apic_arb_prio;
523 u64 ia32_misc_enable_msr;
526 bool tpr_access_reporting;
528 u64 microcode_version;
531 * Paging state of the vcpu
533 * If the vcpu runs in guest mode with two level paging this still saves
534 * the paging mode of the l1 guest. This context is always used to
540 * Paging state of an L2 guest (used for nested npt)
542 * This context will save all necessary information to walk page tables
543 * of the an L2 guest. This context is only initialized for page table
544 * walking and not for faulting since we never handle l2 page faults on
547 struct kvm_mmu nested_mmu;
550 * Pointer to the mmu context currently used for
551 * gva_to_gpa translations.
553 struct kvm_mmu *walk_mmu;
555 struct kvm_mmu_memory_cache mmu_pte_list_desc_cache;
556 struct kvm_mmu_memory_cache mmu_page_cache;
557 struct kvm_mmu_memory_cache mmu_page_header_cache;
560 * QEMU userspace and the guest each have their own FPU state.
561 * In vcpu_run, we switch between the user and guest FPU contexts.
562 * While running a VCPU, the VCPU thread will have the guest FPU
565 * Note that while the PKRU state lives inside the fpu registers,
566 * it is switched out separately at VMENTER and VMEXIT time. The
567 * "guest_fpu" state here contains the guest FPU context, with the
571 struct fpu guest_fpu;
574 u64 guest_supported_xcr0;
575 u32 guest_xstate_size;
577 struct kvm_pio_request pio;
580 u8 event_exit_inst_len;
582 struct kvm_queued_exception {
591 struct kvm_queued_interrupt {
597 int halt_request; /* real mode on Intel only */
600 struct kvm_cpuid_entry2 cpuid_entries[KVM_MAX_CPUID_ENTRIES];
604 /* emulate context */
606 struct x86_emulate_ctxt emulate_ctxt;
607 bool emulate_regs_need_sync_to_vcpu;
608 bool emulate_regs_need_sync_from_vcpu;
609 int (*complete_userspace_io)(struct kvm_vcpu *vcpu);
612 struct pvclock_vcpu_time_info hv_clock;
613 unsigned int hw_tsc_khz;
614 struct gfn_to_hva_cache pv_time;
615 bool pv_time_enabled;
616 /* set guest stopped flag in pvclock flags field */
617 bool pvclock_set_guest_stopped_request;
622 struct gfn_to_hva_cache stime;
623 struct kvm_steal_time steal;
629 u64 tsc_offset_adjustment;
632 u64 this_tsc_generation;
634 bool tsc_always_catchup;
635 s8 virtual_tsc_shift;
636 u32 virtual_tsc_mult;
638 s64 ia32_tsc_adjust_msr;
639 u64 tsc_scaling_ratio;
641 atomic_t nmi_queued; /* unprocessed asynchronous NMIs */
642 unsigned nmi_pending; /* NMI queued after currently running handler */
643 bool nmi_injected; /* Trying to inject an NMI this entry */
644 bool smi_pending; /* SMI queued after currently running handler */
646 struct kvm_mtrr mtrr_state;
649 unsigned switch_db_regs;
650 unsigned long db[KVM_NR_DB_REGS];
653 unsigned long eff_db[KVM_NR_DB_REGS];
654 unsigned long guest_debug_dr7;
655 u64 msr_platform_info;
656 u64 msr_misc_features_enables;
664 /* Cache MMIO info */
672 /* used for guest single stepping over the given code position */
673 unsigned long singlestep_rip;
675 struct kvm_vcpu_hv hyperv;
677 cpumask_var_t wbinvd_dirty_mask;
679 unsigned long last_retry_eip;
680 unsigned long last_retry_addr;
684 gfn_t gfns[roundup_pow_of_two(ASYNC_PF_PER_VCPU)];
685 struct gfn_to_hva_cache data;
690 unsigned long nested_apf_token;
691 bool delivery_as_pf_vmexit;
694 /* OSVW MSRs (AMD only) */
702 struct gfn_to_hva_cache data;
706 * Indicate whether the access faults on its page table in guest
707 * which is set when fix page fault and used to detect unhandeable
710 bool write_fault_to_shadow_pgtable;
712 /* set at EPT violation at this point */
713 unsigned long exit_qualification;
715 /* pv related host specific info */
720 int pending_ioapic_eoi;
721 int pending_external_vector;
727 /* be preempted when it's in kernel-mode(cpl=0) */
728 bool preempted_in_kernel;
730 /* Flush the L1 Data cache for L1TF mitigation on VMENTER */
734 struct kvm_lpage_info {
738 struct kvm_arch_memory_slot {
739 struct kvm_rmap_head *rmap[KVM_NR_PAGE_SIZES];
740 struct kvm_lpage_info *lpage_info[KVM_NR_PAGE_SIZES - 1];
741 unsigned short *gfn_track[KVM_PAGE_TRACK_MAX];
745 * We use as the mode the number of bits allocated in the LDR for the
746 * logical processor ID. It happens that these are all powers of two.
747 * This makes it is very easy to detect cases where the APICs are
748 * configured for multiple modes; in that case, we cannot use the map and
749 * hence cannot use kvm_irq_delivery_to_apic_fast either.
751 #define KVM_APIC_MODE_XAPIC_CLUSTER 4
752 #define KVM_APIC_MODE_XAPIC_FLAT 8
753 #define KVM_APIC_MODE_X2APIC 16
755 struct kvm_apic_map {
760 struct kvm_lapic *xapic_flat_map[8];
761 struct kvm_lapic *xapic_cluster_map[16][4];
763 struct kvm_lapic *phys_map[];
766 /* Hyper-V emulation context */
768 struct mutex hv_lock;
773 /* Hyper-v based guest crash (NT kernel bugcheck) parameters */
774 u64 hv_crash_param[HV_X64_MSR_CRASH_PARAMS];
777 HV_REFERENCE_TSC_PAGE tsc_ref;
779 struct idr conn_to_evt;
781 u64 hv_reenlightenment_control;
782 u64 hv_tsc_emulation_control;
783 u64 hv_tsc_emulation_status;
786 enum kvm_irqchip_mode {
788 KVM_IRQCHIP_KERNEL, /* created with KVM_CREATE_IRQCHIP */
789 KVM_IRQCHIP_SPLIT, /* created with KVM_CAP_SPLIT_IRQCHIP */
793 unsigned int n_used_mmu_pages;
794 unsigned int n_requested_mmu_pages;
795 unsigned int n_max_mmu_pages;
796 unsigned int indirect_shadow_pages;
797 unsigned long mmu_valid_gen;
798 struct hlist_head mmu_page_hash[KVM_NUM_MMU_PAGES];
800 * Hash table of struct kvm_mmu_page.
802 struct list_head active_mmu_pages;
803 struct list_head zapped_obsolete_pages;
804 struct kvm_page_track_notifier_node mmu_sp_tracker;
805 struct kvm_page_track_notifier_head track_notifier_head;
807 struct list_head assigned_dev_head;
808 struct iommu_domain *iommu_domain;
809 bool iommu_noncoherent;
810 #define __KVM_HAVE_ARCH_NONCOHERENT_DMA
811 atomic_t noncoherent_dma_count;
812 #define __KVM_HAVE_ARCH_ASSIGNED_DEVICE
813 atomic_t assigned_device_count;
814 struct kvm_pic *vpic;
815 struct kvm_ioapic *vioapic;
816 struct kvm_pit *vpit;
817 atomic_t vapics_in_nmi_mode;
818 struct mutex apic_map_lock;
819 struct kvm_apic_map *apic_map;
821 bool apic_access_page_done;
829 unsigned long irq_sources_bitmap;
831 raw_spinlock_t tsc_write_lock;
838 u64 cur_tsc_generation;
839 int nr_vcpus_matched_tsc;
841 spinlock_t pvclock_gtod_sync_lock;
842 bool use_master_clock;
843 u64 master_kernel_ns;
844 u64 master_cycle_now;
845 struct delayed_work kvmclock_update_work;
846 struct delayed_work kvmclock_sync_work;
848 struct kvm_xen_hvm_config xen_hvm_config;
850 /* reads protected by irq_srcu, writes by irq_lock */
851 struct hlist_head mask_notifier_list;
853 struct kvm_hv hyperv;
855 #ifdef CONFIG_KVM_MMU_AUDIT
859 bool backwards_tsc_observed;
860 bool boot_vcpu_runs_old_kvmclock;
865 enum kvm_irqchip_mode irqchip_mode;
866 u8 nr_reserved_ioapic_pins;
868 bool disabled_lapic_found;
871 bool x2apic_broadcast_quirk_disabled;
873 bool guest_can_read_msr_platform_info;
877 ulong mmu_shadow_zapped;
879 ulong mmu_pte_updated;
880 ulong mmu_pde_zapped;
883 ulong mmu_cache_miss;
885 ulong remote_tlb_flush;
887 ulong max_mmu_page_hash_collisions;
890 struct kvm_vcpu_stat {
900 u64 irq_window_exits;
901 u64 nmi_window_exits;
904 u64 halt_successful_poll;
905 u64 halt_attempted_poll;
906 u64 halt_poll_invalid;
908 u64 request_irq_exits;
910 u64 host_state_reload;
913 u64 insn_emulation_fail;
920 struct x86_instruction_info;
928 struct kvm_lapic_irq {
940 int (*cpu_has_kvm_support)(void); /* __init */
941 int (*disabled_by_bios)(void); /* __init */
942 int (*hardware_enable)(void);
943 void (*hardware_disable)(void);
944 void (*check_processor_compatibility)(void *rtn);
945 int (*hardware_setup)(void); /* __init */
946 void (*hardware_unsetup)(void); /* __exit */
947 bool (*cpu_has_accelerated_tpr)(void);
948 bool (*has_emulated_msr)(int index);
949 void (*cpuid_update)(struct kvm_vcpu *vcpu);
951 struct kvm *(*vm_alloc)(void);
952 void (*vm_free)(struct kvm *);
953 int (*vm_init)(struct kvm *kvm);
954 void (*vm_destroy)(struct kvm *kvm);
956 /* Create, but do not attach this VCPU */
957 struct kvm_vcpu *(*vcpu_create)(struct kvm *kvm, unsigned id);
958 void (*vcpu_free)(struct kvm_vcpu *vcpu);
959 void (*vcpu_reset)(struct kvm_vcpu *vcpu, bool init_event);
961 void (*prepare_guest_switch)(struct kvm_vcpu *vcpu);
962 void (*vcpu_load)(struct kvm_vcpu *vcpu, int cpu);
963 void (*vcpu_put)(struct kvm_vcpu *vcpu);
965 void (*update_bp_intercept)(struct kvm_vcpu *vcpu);
966 int (*get_msr)(struct kvm_vcpu *vcpu, struct msr_data *msr);
967 int (*set_msr)(struct kvm_vcpu *vcpu, struct msr_data *msr);
968 u64 (*get_segment_base)(struct kvm_vcpu *vcpu, int seg);
969 void (*get_segment)(struct kvm_vcpu *vcpu,
970 struct kvm_segment *var, int seg);
971 int (*get_cpl)(struct kvm_vcpu *vcpu);
972 void (*set_segment)(struct kvm_vcpu *vcpu,
973 struct kvm_segment *var, int seg);
974 void (*get_cs_db_l_bits)(struct kvm_vcpu *vcpu, int *db, int *l);
975 void (*decache_cr0_guest_bits)(struct kvm_vcpu *vcpu);
976 void (*decache_cr3)(struct kvm_vcpu *vcpu);
977 void (*decache_cr4_guest_bits)(struct kvm_vcpu *vcpu);
978 void (*set_cr0)(struct kvm_vcpu *vcpu, unsigned long cr0);
979 void (*set_cr3)(struct kvm_vcpu *vcpu, unsigned long cr3);
980 int (*set_cr4)(struct kvm_vcpu *vcpu, unsigned long cr4);
981 void (*set_efer)(struct kvm_vcpu *vcpu, u64 efer);
982 void (*get_idt)(struct kvm_vcpu *vcpu, struct desc_ptr *dt);
983 void (*set_idt)(struct kvm_vcpu *vcpu, struct desc_ptr *dt);
984 void (*get_gdt)(struct kvm_vcpu *vcpu, struct desc_ptr *dt);
985 void (*set_gdt)(struct kvm_vcpu *vcpu, struct desc_ptr *dt);
986 u64 (*get_dr6)(struct kvm_vcpu *vcpu);
987 void (*set_dr6)(struct kvm_vcpu *vcpu, unsigned long value);
988 void (*sync_dirty_debug_regs)(struct kvm_vcpu *vcpu);
989 void (*set_dr7)(struct kvm_vcpu *vcpu, unsigned long value);
990 void (*cache_reg)(struct kvm_vcpu *vcpu, enum kvm_reg reg);
991 unsigned long (*get_rflags)(struct kvm_vcpu *vcpu);
992 void (*set_rflags)(struct kvm_vcpu *vcpu, unsigned long rflags);
994 void (*tlb_flush)(struct kvm_vcpu *vcpu, bool invalidate_gpa);
995 int (*tlb_remote_flush)(struct kvm *kvm);
998 * Flush any TLB entries associated with the given GVA.
999 * Does not need to flush GPA->HPA mappings.
1000 * Can potentially get non-canonical addresses through INVLPGs, which
1001 * the implementation may choose to ignore if appropriate.
1003 void (*tlb_flush_gva)(struct kvm_vcpu *vcpu, gva_t addr);
1005 void (*run)(struct kvm_vcpu *vcpu);
1006 int (*handle_exit)(struct kvm_vcpu *vcpu);
1007 void (*skip_emulated_instruction)(struct kvm_vcpu *vcpu);
1008 void (*set_interrupt_shadow)(struct kvm_vcpu *vcpu, int mask);
1009 u32 (*get_interrupt_shadow)(struct kvm_vcpu *vcpu);
1010 void (*patch_hypercall)(struct kvm_vcpu *vcpu,
1011 unsigned char *hypercall_addr);
1012 void (*set_irq)(struct kvm_vcpu *vcpu);
1013 void (*set_nmi)(struct kvm_vcpu *vcpu);
1014 void (*queue_exception)(struct kvm_vcpu *vcpu);
1015 void (*cancel_injection)(struct kvm_vcpu *vcpu);
1016 int (*interrupt_allowed)(struct kvm_vcpu *vcpu);
1017 int (*nmi_allowed)(struct kvm_vcpu *vcpu);
1018 bool (*get_nmi_mask)(struct kvm_vcpu *vcpu);
1019 void (*set_nmi_mask)(struct kvm_vcpu *vcpu, bool masked);
1020 void (*enable_nmi_window)(struct kvm_vcpu *vcpu);
1021 void (*enable_irq_window)(struct kvm_vcpu *vcpu);
1022 void (*update_cr8_intercept)(struct kvm_vcpu *vcpu, int tpr, int irr);
1023 bool (*get_enable_apicv)(struct kvm_vcpu *vcpu);
1024 void (*refresh_apicv_exec_ctrl)(struct kvm_vcpu *vcpu);
1025 void (*hwapic_irr_update)(struct kvm_vcpu *vcpu, int max_irr);
1026 void (*hwapic_isr_update)(struct kvm_vcpu *vcpu, int isr);
1027 bool (*guest_apic_has_interrupt)(struct kvm_vcpu *vcpu);
1028 void (*load_eoi_exitmap)(struct kvm_vcpu *vcpu, u64 *eoi_exit_bitmap);
1029 void (*set_virtual_apic_mode)(struct kvm_vcpu *vcpu);
1030 void (*set_apic_access_page_addr)(struct kvm_vcpu *vcpu, hpa_t hpa);
1031 void (*deliver_posted_interrupt)(struct kvm_vcpu *vcpu, int vector);
1032 int (*sync_pir_to_irr)(struct kvm_vcpu *vcpu);
1033 int (*set_tss_addr)(struct kvm *kvm, unsigned int addr);
1034 int (*set_identity_map_addr)(struct kvm *kvm, u64 ident_addr);
1035 int (*get_tdp_level)(struct kvm_vcpu *vcpu);
1036 u64 (*get_mt_mask)(struct kvm_vcpu *vcpu, gfn_t gfn, bool is_mmio);
1037 int (*get_lpage_level)(void);
1038 bool (*rdtscp_supported)(void);
1039 bool (*invpcid_supported)(void);
1041 void (*set_tdp_cr3)(struct kvm_vcpu *vcpu, unsigned long cr3);
1043 void (*set_supported_cpuid)(u32 func, struct kvm_cpuid_entry2 *entry);
1045 bool (*has_wbinvd_exit)(void);
1047 u64 (*read_l1_tsc_offset)(struct kvm_vcpu *vcpu);
1048 void (*write_tsc_offset)(struct kvm_vcpu *vcpu, u64 offset);
1050 void (*get_exit_info)(struct kvm_vcpu *vcpu, u64 *info1, u64 *info2);
1052 int (*check_intercept)(struct kvm_vcpu *vcpu,
1053 struct x86_instruction_info *info,
1054 enum x86_intercept_stage stage);
1055 void (*handle_external_intr)(struct kvm_vcpu *vcpu);
1056 bool (*mpx_supported)(void);
1057 bool (*xsaves_supported)(void);
1058 bool (*umip_emulated)(void);
1060 int (*check_nested_events)(struct kvm_vcpu *vcpu, bool external_intr);
1061 void (*request_immediate_exit)(struct kvm_vcpu *vcpu);
1063 void (*sched_in)(struct kvm_vcpu *kvm, int cpu);
1066 * Arch-specific dirty logging hooks. These hooks are only supposed to
1067 * be valid if the specific arch has hardware-accelerated dirty logging
1068 * mechanism. Currently only for PML on VMX.
1070 * - slot_enable_log_dirty:
1071 * called when enabling log dirty mode for the slot.
1072 * - slot_disable_log_dirty:
1073 * called when disabling log dirty mode for the slot.
1074 * also called when slot is created with log dirty disabled.
1075 * - flush_log_dirty:
1076 * called before reporting dirty_bitmap to userspace.
1077 * - enable_log_dirty_pt_masked:
1078 * called when reenabling log dirty for the GFNs in the mask after
1079 * corresponding bits are cleared in slot->dirty_bitmap.
1081 void (*slot_enable_log_dirty)(struct kvm *kvm,
1082 struct kvm_memory_slot *slot);
1083 void (*slot_disable_log_dirty)(struct kvm *kvm,
1084 struct kvm_memory_slot *slot);
1085 void (*flush_log_dirty)(struct kvm *kvm);
1086 void (*enable_log_dirty_pt_masked)(struct kvm *kvm,
1087 struct kvm_memory_slot *slot,
1088 gfn_t offset, unsigned long mask);
1089 int (*write_log_dirty)(struct kvm_vcpu *vcpu);
1091 /* pmu operations of sub-arch */
1092 const struct kvm_pmu_ops *pmu_ops;
1095 * Architecture specific hooks for vCPU blocking due to
1097 * Returns for .pre_block():
1098 * - 0 means continue to block the vCPU.
1099 * - 1 means we cannot block the vCPU since some event
1100 * happens during this period, such as, 'ON' bit in
1101 * posted-interrupts descriptor is set.
1103 int (*pre_block)(struct kvm_vcpu *vcpu);
1104 void (*post_block)(struct kvm_vcpu *vcpu);
1106 void (*vcpu_blocking)(struct kvm_vcpu *vcpu);
1107 void (*vcpu_unblocking)(struct kvm_vcpu *vcpu);
1109 int (*update_pi_irte)(struct kvm *kvm, unsigned int host_irq,
1110 uint32_t guest_irq, bool set);
1111 void (*apicv_post_state_restore)(struct kvm_vcpu *vcpu);
1113 int (*set_hv_timer)(struct kvm_vcpu *vcpu, u64 guest_deadline_tsc);
1114 void (*cancel_hv_timer)(struct kvm_vcpu *vcpu);
1116 void (*setup_mce)(struct kvm_vcpu *vcpu);
1118 int (*get_nested_state)(struct kvm_vcpu *vcpu,
1119 struct kvm_nested_state __user *user_kvm_nested_state,
1120 unsigned user_data_size);
1121 int (*set_nested_state)(struct kvm_vcpu *vcpu,
1122 struct kvm_nested_state __user *user_kvm_nested_state,
1123 struct kvm_nested_state *kvm_state);
1124 void (*get_vmcs12_pages)(struct kvm_vcpu *vcpu);
1126 int (*smi_allowed)(struct kvm_vcpu *vcpu);
1127 int (*pre_enter_smm)(struct kvm_vcpu *vcpu, char *smstate);
1128 int (*pre_leave_smm)(struct kvm_vcpu *vcpu, u64 smbase);
1129 int (*enable_smi_window)(struct kvm_vcpu *vcpu);
1131 int (*mem_enc_op)(struct kvm *kvm, void __user *argp);
1132 int (*mem_enc_reg_region)(struct kvm *kvm, struct kvm_enc_region *argp);
1133 int (*mem_enc_unreg_region)(struct kvm *kvm, struct kvm_enc_region *argp);
1135 int (*get_msr_feature)(struct kvm_msr_entry *entry);
1138 struct kvm_arch_async_pf {
1145 extern struct kvm_x86_ops *kvm_x86_ops;
1147 #define __KVM_HAVE_ARCH_VM_ALLOC
1148 static inline struct kvm *kvm_arch_alloc_vm(void)
1150 return kvm_x86_ops->vm_alloc();
1153 static inline void kvm_arch_free_vm(struct kvm *kvm)
1155 return kvm_x86_ops->vm_free(kvm);
1158 #define __KVM_HAVE_ARCH_FLUSH_REMOTE_TLB
1159 static inline int kvm_arch_flush_remote_tlb(struct kvm *kvm)
1161 if (kvm_x86_ops->tlb_remote_flush &&
1162 !kvm_x86_ops->tlb_remote_flush(kvm))
1168 int kvm_mmu_module_init(void);
1169 void kvm_mmu_module_exit(void);
1171 void kvm_mmu_destroy(struct kvm_vcpu *vcpu);
1172 int kvm_mmu_create(struct kvm_vcpu *vcpu);
1173 void kvm_mmu_setup(struct kvm_vcpu *vcpu);
1174 void kvm_mmu_init_vm(struct kvm *kvm);
1175 void kvm_mmu_uninit_vm(struct kvm *kvm);
1176 void kvm_mmu_set_mask_ptes(u64 user_mask, u64 accessed_mask,
1177 u64 dirty_mask, u64 nx_mask, u64 x_mask, u64 p_mask,
1178 u64 acc_track_mask, u64 me_mask);
1180 void kvm_mmu_reset_context(struct kvm_vcpu *vcpu);
1181 void kvm_mmu_slot_remove_write_access(struct kvm *kvm,
1182 struct kvm_memory_slot *memslot);
1183 void kvm_mmu_zap_collapsible_sptes(struct kvm *kvm,
1184 const struct kvm_memory_slot *memslot);
1185 void kvm_mmu_slot_leaf_clear_dirty(struct kvm *kvm,
1186 struct kvm_memory_slot *memslot);
1187 void kvm_mmu_slot_largepage_remove_write_access(struct kvm *kvm,
1188 struct kvm_memory_slot *memslot);
1189 void kvm_mmu_slot_set_dirty(struct kvm *kvm,
1190 struct kvm_memory_slot *memslot);
1191 void kvm_mmu_clear_dirty_pt_masked(struct kvm *kvm,
1192 struct kvm_memory_slot *slot,
1193 gfn_t gfn_offset, unsigned long mask);
1194 void kvm_mmu_zap_all(struct kvm *kvm);
1195 void kvm_mmu_invalidate_mmio_sptes(struct kvm *kvm, struct kvm_memslots *slots);
1196 unsigned int kvm_mmu_calculate_mmu_pages(struct kvm *kvm);
1197 void kvm_mmu_change_mmu_pages(struct kvm *kvm, unsigned int kvm_nr_mmu_pages);
1199 int load_pdptrs(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu, unsigned long cr3);
1200 bool pdptrs_changed(struct kvm_vcpu *vcpu);
1202 int emulator_write_phys(struct kvm_vcpu *vcpu, gpa_t gpa,
1203 const void *val, int bytes);
1205 struct kvm_irq_mask_notifier {
1206 void (*func)(struct kvm_irq_mask_notifier *kimn, bool masked);
1208 struct hlist_node link;
1211 void kvm_register_irq_mask_notifier(struct kvm *kvm, int irq,
1212 struct kvm_irq_mask_notifier *kimn);
1213 void kvm_unregister_irq_mask_notifier(struct kvm *kvm, int irq,
1214 struct kvm_irq_mask_notifier *kimn);
1215 void kvm_fire_mask_notifiers(struct kvm *kvm, unsigned irqchip, unsigned pin,
1218 extern bool tdp_enabled;
1220 u64 vcpu_tsc_khz(struct kvm_vcpu *vcpu);
1222 /* control of guest tsc rate supported? */
1223 extern bool kvm_has_tsc_control;
1224 /* maximum supported tsc_khz for guests */
1225 extern u32 kvm_max_guest_tsc_khz;
1226 /* number of bits of the fractional part of the TSC scaling ratio */
1227 extern u8 kvm_tsc_scaling_ratio_frac_bits;
1228 /* maximum allowed value of TSC scaling ratio */
1229 extern u64 kvm_max_tsc_scaling_ratio;
1230 /* 1ull << kvm_tsc_scaling_ratio_frac_bits */
1231 extern u64 kvm_default_tsc_scaling_ratio;
1233 extern u64 kvm_mce_cap_supported;
1235 enum emulation_result {
1236 EMULATE_DONE, /* no further processing */
1237 EMULATE_USER_EXIT, /* kvm_run ready for userspace exit */
1238 EMULATE_FAIL, /* can't emulate this instruction */
1241 #define EMULTYPE_NO_DECODE (1 << 0)
1242 #define EMULTYPE_TRAP_UD (1 << 1)
1243 #define EMULTYPE_SKIP (1 << 2)
1244 #define EMULTYPE_ALLOW_RETRY (1 << 3)
1245 #define EMULTYPE_NO_UD_ON_FAIL (1 << 4)
1246 #define EMULTYPE_VMWARE (1 << 5)
1247 int kvm_emulate_instruction(struct kvm_vcpu *vcpu, int emulation_type);
1248 int kvm_emulate_instruction_from_buffer(struct kvm_vcpu *vcpu,
1249 void *insn, int insn_len);
1251 void kvm_enable_efer_bits(u64);
1252 bool kvm_valid_efer(struct kvm_vcpu *vcpu, u64 efer);
1253 int kvm_get_msr(struct kvm_vcpu *vcpu, struct msr_data *msr);
1254 int kvm_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr);
1256 struct x86_emulate_ctxt;
1258 int kvm_fast_pio(struct kvm_vcpu *vcpu, int size, unsigned short port, int in);
1259 int kvm_emulate_cpuid(struct kvm_vcpu *vcpu);
1260 int kvm_emulate_halt(struct kvm_vcpu *vcpu);
1261 int kvm_vcpu_halt(struct kvm_vcpu *vcpu);
1262 int kvm_emulate_wbinvd(struct kvm_vcpu *vcpu);
1264 void kvm_get_segment(struct kvm_vcpu *vcpu, struct kvm_segment *var, int seg);
1265 int kvm_load_segment_descriptor(struct kvm_vcpu *vcpu, u16 selector, int seg);
1266 void kvm_vcpu_deliver_sipi_vector(struct kvm_vcpu *vcpu, u8 vector);
1268 int kvm_task_switch(struct kvm_vcpu *vcpu, u16 tss_selector, int idt_index,
1269 int reason, bool has_error_code, u32 error_code);
1271 int kvm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0);
1272 int kvm_set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3);
1273 int kvm_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4);
1274 int kvm_set_cr8(struct kvm_vcpu *vcpu, unsigned long cr8);
1275 int kvm_set_dr(struct kvm_vcpu *vcpu, int dr, unsigned long val);
1276 int kvm_get_dr(struct kvm_vcpu *vcpu, int dr, unsigned long *val);
1277 unsigned long kvm_get_cr8(struct kvm_vcpu *vcpu);
1278 void kvm_lmsw(struct kvm_vcpu *vcpu, unsigned long msw);
1279 void kvm_get_cs_db_l_bits(struct kvm_vcpu *vcpu, int *db, int *l);
1280 int kvm_set_xcr(struct kvm_vcpu *vcpu, u32 index, u64 xcr);
1282 int kvm_get_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr);
1283 int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr);
1285 unsigned long kvm_get_rflags(struct kvm_vcpu *vcpu);
1286 void kvm_set_rflags(struct kvm_vcpu *vcpu, unsigned long rflags);
1287 bool kvm_rdpmc(struct kvm_vcpu *vcpu);
1289 void kvm_queue_exception(struct kvm_vcpu *vcpu, unsigned nr);
1290 void kvm_queue_exception_e(struct kvm_vcpu *vcpu, unsigned nr, u32 error_code);
1291 void kvm_requeue_exception(struct kvm_vcpu *vcpu, unsigned nr);
1292 void kvm_requeue_exception_e(struct kvm_vcpu *vcpu, unsigned nr, u32 error_code);
1293 void kvm_inject_page_fault(struct kvm_vcpu *vcpu, struct x86_exception *fault);
1294 int kvm_read_guest_page_mmu(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu,
1295 gfn_t gfn, void *data, int offset, int len,
1297 bool kvm_require_cpl(struct kvm_vcpu *vcpu, int required_cpl);
1298 bool kvm_require_dr(struct kvm_vcpu *vcpu, int dr);
1300 static inline int __kvm_irq_line_state(unsigned long *irq_state,
1301 int irq_source_id, int level)
1303 /* Logical OR for level trig interrupt */
1305 __set_bit(irq_source_id, irq_state);
1307 __clear_bit(irq_source_id, irq_state);
1309 return !!(*irq_state);
1312 #define KVM_MMU_ROOT_CURRENT BIT(0)
1313 #define KVM_MMU_ROOT_PREVIOUS(i) BIT(1+i)
1314 #define KVM_MMU_ROOTS_ALL (~0UL)
1316 int kvm_pic_set_irq(struct kvm_pic *pic, int irq, int irq_source_id, int level);
1317 void kvm_pic_clear_all(struct kvm_pic *pic, int irq_source_id);
1319 void kvm_inject_nmi(struct kvm_vcpu *vcpu);
1321 int kvm_mmu_unprotect_page(struct kvm *kvm, gfn_t gfn);
1322 int kvm_mmu_unprotect_page_virt(struct kvm_vcpu *vcpu, gva_t gva);
1323 void __kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu);
1324 int kvm_mmu_load(struct kvm_vcpu *vcpu);
1325 void kvm_mmu_unload(struct kvm_vcpu *vcpu);
1326 void kvm_mmu_sync_roots(struct kvm_vcpu *vcpu);
1327 void kvm_mmu_free_roots(struct kvm_vcpu *vcpu, ulong roots_to_free);
1328 gpa_t translate_nested_gpa(struct kvm_vcpu *vcpu, gpa_t gpa, u32 access,
1329 struct x86_exception *exception);
1330 gpa_t kvm_mmu_gva_to_gpa_read(struct kvm_vcpu *vcpu, gva_t gva,
1331 struct x86_exception *exception);
1332 gpa_t kvm_mmu_gva_to_gpa_fetch(struct kvm_vcpu *vcpu, gva_t gva,
1333 struct x86_exception *exception);
1334 gpa_t kvm_mmu_gva_to_gpa_write(struct kvm_vcpu *vcpu, gva_t gva,
1335 struct x86_exception *exception);
1336 gpa_t kvm_mmu_gva_to_gpa_system(struct kvm_vcpu *vcpu, gva_t gva,
1337 struct x86_exception *exception);
1339 void kvm_vcpu_deactivate_apicv(struct kvm_vcpu *vcpu);
1341 int kvm_emulate_hypercall(struct kvm_vcpu *vcpu);
1343 int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t gva, u64 error_code,
1344 void *insn, int insn_len);
1345 void kvm_mmu_invlpg(struct kvm_vcpu *vcpu, gva_t gva);
1346 void kvm_mmu_invpcid_gva(struct kvm_vcpu *vcpu, gva_t gva, unsigned long pcid);
1347 void kvm_mmu_new_cr3(struct kvm_vcpu *vcpu, gpa_t new_cr3, bool skip_tlb_flush);
1349 void kvm_enable_tdp(void);
1350 void kvm_disable_tdp(void);
1352 static inline gpa_t translate_gpa(struct kvm_vcpu *vcpu, gpa_t gpa, u32 access,
1353 struct x86_exception *exception)
1358 static inline struct kvm_mmu_page *page_header(hpa_t shadow_page)
1360 struct page *page = pfn_to_page(shadow_page >> PAGE_SHIFT);
1362 return (struct kvm_mmu_page *)page_private(page);
1365 static inline u16 kvm_read_ldt(void)
1368 asm("sldt %0" : "=g"(ldt));
1372 static inline void kvm_load_ldt(u16 sel)
1374 asm("lldt %0" : : "rm"(sel));
1377 #ifdef CONFIG_X86_64
1378 static inline unsigned long read_msr(unsigned long msr)
1387 static inline u32 get_rdx_init_val(void)
1389 return 0x600; /* P6 family */
1392 static inline void kvm_inject_gp(struct kvm_vcpu *vcpu, u32 error_code)
1394 kvm_queue_exception_e(vcpu, GP_VECTOR, error_code);
1397 #define TSS_IOPB_BASE_OFFSET 0x66
1398 #define TSS_BASE_SIZE 0x68
1399 #define TSS_IOPB_SIZE (65536 / 8)
1400 #define TSS_REDIRECTION_SIZE (256 / 8)
1401 #define RMODE_TSS_SIZE \
1402 (TSS_BASE_SIZE + TSS_REDIRECTION_SIZE + TSS_IOPB_SIZE + 1)
1405 TASK_SWITCH_CALL = 0,
1406 TASK_SWITCH_IRET = 1,
1407 TASK_SWITCH_JMP = 2,
1408 TASK_SWITCH_GATE = 3,
1411 #define HF_GIF_MASK (1 << 0)
1412 #define HF_HIF_MASK (1 << 1)
1413 #define HF_VINTR_MASK (1 << 2)
1414 #define HF_NMI_MASK (1 << 3)
1415 #define HF_IRET_MASK (1 << 4)
1416 #define HF_GUEST_MASK (1 << 5) /* VCPU is in guest-mode */
1417 #define HF_SMM_MASK (1 << 6)
1418 #define HF_SMM_INSIDE_NMI_MASK (1 << 7)
1420 #define __KVM_VCPU_MULTIPLE_ADDRESS_SPACE
1421 #define KVM_ADDRESS_SPACE_NUM 2
1423 #define kvm_arch_vcpu_memslots_id(vcpu) ((vcpu)->arch.hflags & HF_SMM_MASK ? 1 : 0)
1424 #define kvm_memslots_for_spte_role(kvm, role) __kvm_memslots(kvm, (role).smm)
1427 * Hardware virtualization extension instructions may fault if a
1428 * reboot turns off virtualization while processes are running.
1429 * Trap the fault and ignore the instruction if that happens.
1431 asmlinkage void kvm_spurious_fault(void);
1433 #define ____kvm_handle_fault_on_reboot(insn, cleanup_insn) \
1434 "666: " insn "\n\t" \
1436 ".pushsection .fixup, \"ax\" \n" \
1438 cleanup_insn "\n\t" \
1439 "cmpb $0, kvm_rebooting \n\t" \
1441 __ASM_SIZE(push) " $666b \n\t" \
1442 "call kvm_spurious_fault \n\t" \
1443 ".popsection \n\t" \
1444 _ASM_EXTABLE(666b, 667b)
1446 #define __kvm_handle_fault_on_reboot(insn) \
1447 ____kvm_handle_fault_on_reboot(insn, "")
1449 #define KVM_ARCH_WANT_MMU_NOTIFIER
1450 int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end);
1451 int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
1452 int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
1453 void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
1454 int kvm_cpu_has_injectable_intr(struct kvm_vcpu *v);
1455 int kvm_cpu_has_interrupt(struct kvm_vcpu *vcpu);
1456 int kvm_arch_interrupt_allowed(struct kvm_vcpu *vcpu);
1457 int kvm_cpu_get_interrupt(struct kvm_vcpu *v);
1458 void kvm_vcpu_reset(struct kvm_vcpu *vcpu, bool init_event);
1459 void kvm_vcpu_reload_apic_access_page(struct kvm_vcpu *vcpu);
1461 int kvm_pv_send_ipi(struct kvm *kvm, unsigned long ipi_bitmap_low,
1462 unsigned long ipi_bitmap_high, u32 min,
1463 unsigned long icr, int op_64_bit);
1465 u64 kvm_get_arch_capabilities(void);
1466 void kvm_define_shared_msr(unsigned index, u32 msr);
1467 int kvm_set_shared_msr(unsigned index, u64 val, u64 mask);
1469 u64 kvm_scale_tsc(struct kvm_vcpu *vcpu, u64 tsc);
1470 u64 kvm_read_l1_tsc(struct kvm_vcpu *vcpu, u64 host_tsc);
1472 unsigned long kvm_get_linear_rip(struct kvm_vcpu *vcpu);
1473 bool kvm_is_linear_rip(struct kvm_vcpu *vcpu, unsigned long linear_rip);
1475 void kvm_make_mclock_inprogress_request(struct kvm *kvm);
1476 void kvm_make_scan_ioapic_request(struct kvm *kvm);
1478 void kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu,
1479 struct kvm_async_pf *work);
1480 void kvm_arch_async_page_present(struct kvm_vcpu *vcpu,
1481 struct kvm_async_pf *work);
1482 void kvm_arch_async_page_ready(struct kvm_vcpu *vcpu,
1483 struct kvm_async_pf *work);
1484 bool kvm_arch_can_inject_async_page_present(struct kvm_vcpu *vcpu);
1485 extern bool kvm_find_async_pf_gfn(struct kvm_vcpu *vcpu, gfn_t gfn);
1487 int kvm_skip_emulated_instruction(struct kvm_vcpu *vcpu);
1488 int kvm_complete_insn_gp(struct kvm_vcpu *vcpu, int err);
1489 void __kvm_request_immediate_exit(struct kvm_vcpu *vcpu);
1491 int kvm_is_in_guest(void);
1493 int __x86_set_memory_region(struct kvm *kvm, int id, gpa_t gpa, u32 size);
1494 int x86_set_memory_region(struct kvm *kvm, int id, gpa_t gpa, u32 size);
1495 bool kvm_vcpu_is_reset_bsp(struct kvm_vcpu *vcpu);
1496 bool kvm_vcpu_is_bsp(struct kvm_vcpu *vcpu);
1498 bool kvm_intr_is_single_vcpu(struct kvm *kvm, struct kvm_lapic_irq *irq,
1499 struct kvm_vcpu **dest_vcpu);
1501 void kvm_set_msi_irq(struct kvm *kvm, struct kvm_kernel_irq_routing_entry *e,
1502 struct kvm_lapic_irq *irq);
1504 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu)
1506 if (kvm_x86_ops->vcpu_blocking)
1507 kvm_x86_ops->vcpu_blocking(vcpu);
1510 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu)
1512 if (kvm_x86_ops->vcpu_unblocking)
1513 kvm_x86_ops->vcpu_unblocking(vcpu);
1516 static inline void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu) {}
1518 static inline int kvm_cpu_get_apicid(int mps_cpu)
1520 #ifdef CONFIG_X86_LOCAL_APIC
1521 return default_cpu_present_to_apicid(mps_cpu);
1528 #define put_smstate(type, buf, offset, val) \
1529 *(type *)((buf) + (offset) - 0x7e00) = val
1531 #endif /* _ASM_X86_KVM_HOST_H */