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_EVENT 14
59 #define KVM_REQ_APF_HALT 15
60 #define KVM_REQ_STEAL_UPDATE 16
61 #define KVM_REQ_NMI 17
62 #define KVM_REQ_PMU 18
63 #define KVM_REQ_PMI 19
64 #define KVM_REQ_SMI 20
65 #define KVM_REQ_MASTERCLOCK_UPDATE 21
66 #define KVM_REQ_MCLOCK_INPROGRESS 22
67 #define KVM_REQ_SCAN_IOAPIC 23
68 #define KVM_REQ_GLOBAL_CLOCK_UPDATE 24
69 #define KVM_REQ_APIC_PAGE_RELOAD 25
70 #define KVM_REQ_HV_CRASH 26
71 #define KVM_REQ_IOAPIC_EOI_EXIT 27
72 #define KVM_REQ_HV_RESET 28
73 #define KVM_REQ_HV_EXIT 29
74 #define KVM_REQ_HV_STIMER 30
76 #define CR0_RESERVED_BITS \
77 (~(unsigned long)(X86_CR0_PE | X86_CR0_MP | X86_CR0_EM | X86_CR0_TS \
78 | X86_CR0_ET | X86_CR0_NE | X86_CR0_WP | X86_CR0_AM \
79 | X86_CR0_NW | X86_CR0_CD | X86_CR0_PG))
81 #define CR3_L_MODE_RESERVED_BITS 0xFFFFFF0000000000ULL
82 #define CR3_PCID_INVD BIT_64(63)
83 #define CR4_RESERVED_BITS \
84 (~(unsigned long)(X86_CR4_VME | X86_CR4_PVI | X86_CR4_TSD | X86_CR4_DE\
85 | X86_CR4_PSE | X86_CR4_PAE | X86_CR4_MCE \
86 | X86_CR4_PGE | X86_CR4_PCE | X86_CR4_OSFXSR | X86_CR4_PCIDE \
87 | X86_CR4_OSXSAVE | X86_CR4_SMEP | X86_CR4_FSGSBASE \
88 | X86_CR4_OSXMMEXCPT | X86_CR4_VMXE | X86_CR4_SMAP \
91 #define CR8_RESERVED_BITS (~(unsigned long)X86_CR8_TPR)
95 #define INVALID_PAGE (~(hpa_t)0)
96 #define VALID_PAGE(x) ((x) != INVALID_PAGE)
98 #define UNMAPPED_GVA (~(gpa_t)0)
100 /* KVM Hugepage definitions for x86 */
101 #define KVM_NR_PAGE_SIZES 3
102 #define KVM_HPAGE_GFN_SHIFT(x) (((x) - 1) * 9)
103 #define KVM_HPAGE_SHIFT(x) (PAGE_SHIFT + KVM_HPAGE_GFN_SHIFT(x))
104 #define KVM_HPAGE_SIZE(x) (1UL << KVM_HPAGE_SHIFT(x))
105 #define KVM_HPAGE_MASK(x) (~(KVM_HPAGE_SIZE(x) - 1))
106 #define KVM_PAGES_PER_HPAGE(x) (KVM_HPAGE_SIZE(x) / PAGE_SIZE)
108 static inline gfn_t
gfn_to_index(gfn_t gfn
, gfn_t base_gfn
, int level
)
110 /* KVM_HPAGE_GFN_SHIFT(PT_PAGE_TABLE_LEVEL) must be 0. */
111 return (gfn
>> KVM_HPAGE_GFN_SHIFT(level
)) -
112 (base_gfn
>> KVM_HPAGE_GFN_SHIFT(level
));
115 #define KVM_PERMILLE_MMU_PAGES 20
116 #define KVM_MIN_ALLOC_MMU_PAGES 64
117 #define KVM_MMU_HASH_SHIFT 12
118 #define KVM_NUM_MMU_PAGES (1 << KVM_MMU_HASH_SHIFT)
119 #define KVM_MIN_FREE_MMU_PAGES 5
120 #define KVM_REFILL_PAGES 25
121 #define KVM_MAX_CPUID_ENTRIES 80
122 #define KVM_NR_FIXED_MTRR_REGION 88
123 #define KVM_NR_VAR_MTRR 8
125 #define ASYNC_PF_PER_VCPU 64
151 VCPU_EXREG_PDPTR
= NR_VCPU_REGS
,
168 #include <asm/kvm_emulate.h>
170 #define KVM_NR_MEM_OBJS 40
172 #define KVM_NR_DB_REGS 4
174 #define DR6_BD (1 << 13)
175 #define DR6_BS (1 << 14)
176 #define DR6_RTM (1 << 16)
177 #define DR6_FIXED_1 0xfffe0ff0
178 #define DR6_INIT 0xffff0ff0
179 #define DR6_VOLATILE 0x0001e00f
181 #define DR7_BP_EN_MASK 0x000000ff
182 #define DR7_GE (1 << 9)
183 #define DR7_GD (1 << 13)
184 #define DR7_FIXED_1 0x00000400
185 #define DR7_VOLATILE 0xffff2bff
187 #define PFERR_PRESENT_BIT 0
188 #define PFERR_WRITE_BIT 1
189 #define PFERR_USER_BIT 2
190 #define PFERR_RSVD_BIT 3
191 #define PFERR_FETCH_BIT 4
192 #define PFERR_PK_BIT 5
193 #define PFERR_GUEST_FINAL_BIT 32
194 #define PFERR_GUEST_PAGE_BIT 33
196 #define PFERR_PRESENT_MASK (1U << PFERR_PRESENT_BIT)
197 #define PFERR_WRITE_MASK (1U << PFERR_WRITE_BIT)
198 #define PFERR_USER_MASK (1U << PFERR_USER_BIT)
199 #define PFERR_RSVD_MASK (1U << PFERR_RSVD_BIT)
200 #define PFERR_FETCH_MASK (1U << PFERR_FETCH_BIT)
201 #define PFERR_PK_MASK (1U << PFERR_PK_BIT)
202 #define PFERR_GUEST_FINAL_MASK (1ULL << PFERR_GUEST_FINAL_BIT)
203 #define PFERR_GUEST_PAGE_MASK (1ULL << PFERR_GUEST_PAGE_BIT)
205 #define PFERR_NESTED_GUEST_PAGE (PFERR_GUEST_PAGE_MASK | \
211 * The mask used to denote special SPTEs, which can be either MMIO SPTEs or
212 * Access Tracking SPTEs. We use bit 62 instead of bit 63 to avoid conflicting
213 * with the SVE bit in EPT PTEs.
215 #define SPTE_SPECIAL_MASK (1ULL << 62)
217 /* apic attention bits */
218 #define KVM_APIC_CHECK_VAPIC 0
220 * The following bit is set with PV-EOI, unset on EOI.
221 * We detect PV-EOI changes by guest by comparing
222 * this bit with PV-EOI in guest memory.
223 * See the implementation in apic_update_pv_eoi.
225 #define KVM_APIC_PV_EOI_PENDING 1
227 struct kvm_kernel_irq_routing_entry
;
230 * We don't want allocation failures within the mmu code, so we preallocate
231 * enough memory for a single page fault in a cache.
233 struct kvm_mmu_memory_cache
{
235 void *objects
[KVM_NR_MEM_OBJS
];
239 * the pages used as guest page table on soft mmu are tracked by
240 * kvm_memory_slot.arch.gfn_track which is 16 bits, so the role bits used
241 * by indirect shadow page can not be more than 15 bits.
243 * Currently, we used 14 bits that are @level, @cr4_pae, @quadrant, @access,
244 * @nxe, @cr0_wp, @smep_andnot_wp and @smap_andnot_wp.
246 union kvm_mmu_page_role
{
257 unsigned smep_andnot_wp
:1;
258 unsigned smap_andnot_wp
:1;
262 * This is left at the top of the word so that
263 * kvm_memslots_for_spte_role can extract it with a
264 * simple shift. While there is room, give it a whole
265 * byte so it is also faster to load it from memory.
271 struct kvm_rmap_head
{
275 struct kvm_mmu_page
{
276 struct list_head link
;
277 struct hlist_node hash_link
;
280 * The following two entries are used to key the shadow page in the
284 union kvm_mmu_page_role role
;
287 /* hold the gfn of each spte inside spt */
290 int root_count
; /* Currently serving as active root */
291 unsigned int unsync_children
;
292 struct kvm_rmap_head parent_ptes
; /* rmap pointers to parent sptes */
294 /* The page is obsolete if mmu_valid_gen != kvm->arch.mmu_valid_gen. */
295 unsigned long mmu_valid_gen
;
297 DECLARE_BITMAP(unsync_child_bitmap
, 512);
301 * Used out of the mmu-lock to avoid reading spte values while an
302 * update is in progress; see the comments in __get_spte_lockless().
304 int clear_spte_count
;
307 /* Number of writes since the last time traversal visited this page. */
308 atomic_t write_flooding_count
;
311 struct kvm_pio_request
{
318 struct rsvd_bits_validate
{
319 u64 rsvd_bits_mask
[2][4];
324 * x86 supports 3 paging modes (4-level 64-bit, 3-level 64-bit, and 2-level
325 * 32-bit). The kvm_mmu structure abstracts the details of the current mmu
329 void (*set_cr3
)(struct kvm_vcpu
*vcpu
, unsigned long root
);
330 unsigned long (*get_cr3
)(struct kvm_vcpu
*vcpu
);
331 u64 (*get_pdptr
)(struct kvm_vcpu
*vcpu
, int index
);
332 int (*page_fault
)(struct kvm_vcpu
*vcpu
, gva_t gva
, u32 err
,
334 void (*inject_page_fault
)(struct kvm_vcpu
*vcpu
,
335 struct x86_exception
*fault
);
336 gpa_t (*gva_to_gpa
)(struct kvm_vcpu
*vcpu
, gva_t gva
, u32 access
,
337 struct x86_exception
*exception
);
338 gpa_t (*translate_gpa
)(struct kvm_vcpu
*vcpu
, gpa_t gpa
, u32 access
,
339 struct x86_exception
*exception
);
340 int (*sync_page
)(struct kvm_vcpu
*vcpu
,
341 struct kvm_mmu_page
*sp
);
342 void (*invlpg
)(struct kvm_vcpu
*vcpu
, gva_t gva
);
343 void (*update_pte
)(struct kvm_vcpu
*vcpu
, struct kvm_mmu_page
*sp
,
344 u64
*spte
, const void *pte
);
347 int shadow_root_level
;
348 union kvm_mmu_page_role base_role
;
352 * Bitmap; bit set = permission fault
353 * Byte index: page fault error code [4:1]
354 * Bit index: pte permissions in ACC_* format
359 * The pkru_mask indicates if protection key checks are needed. It
360 * consists of 16 domains indexed by page fault error code bits [4:1],
361 * with PFEC.RSVD replaced by ACC_USER_MASK from the page tables.
362 * Each domain has 2 bits which are ANDed with AD and WD from PKRU.
370 * check zero bits on shadow page table entries, these
371 * bits include not only hardware reserved bits but also
372 * the bits spte never used.
374 struct rsvd_bits_validate shadow_zero_check
;
376 struct rsvd_bits_validate guest_rsvd_check
;
378 /* Can have large pages at levels 2..last_nonleaf_level-1. */
379 u8 last_nonleaf_level
;
383 u64 pdptrs
[4]; /* pae */
396 struct perf_event
*perf_event
;
397 struct kvm_vcpu
*vcpu
;
401 unsigned nr_arch_gp_counters
;
402 unsigned nr_arch_fixed_counters
;
403 unsigned available_event_types
;
408 u64 counter_bitmask
[2];
409 u64 global_ctrl_mask
;
412 struct kvm_pmc gp_counters
[INTEL_PMC_MAX_GENERIC
];
413 struct kvm_pmc fixed_counters
[INTEL_PMC_MAX_FIXED
];
414 struct irq_work irq_work
;
421 KVM_DEBUGREG_BP_ENABLED
= 1,
422 KVM_DEBUGREG_WONT_EXIT
= 2,
423 KVM_DEBUGREG_RELOAD
= 4,
426 struct kvm_mtrr_range
{
429 struct list_head node
;
433 struct kvm_mtrr_range var_ranges
[KVM_NR_VAR_MTRR
];
434 mtrr_type fixed_ranges
[KVM_NR_FIXED_MTRR_REGION
];
437 struct list_head head
;
440 /* Hyper-V SynIC timer */
441 struct kvm_vcpu_hv_stimer
{
442 struct hrtimer timer
;
447 struct hv_message msg
;
451 /* Hyper-V synthetic interrupt controller (SynIC)*/
452 struct kvm_vcpu_hv_synic
{
457 atomic64_t sint
[HV_SYNIC_SINT_COUNT
];
458 atomic_t sint_to_gsi
[HV_SYNIC_SINT_COUNT
];
459 DECLARE_BITMAP(auto_eoi_bitmap
, 256);
460 DECLARE_BITMAP(vec_bitmap
, 256);
464 /* Hyper-V per vcpu emulation context */
468 struct kvm_vcpu_hv_synic synic
;
469 struct kvm_hyperv_exit exit
;
470 struct kvm_vcpu_hv_stimer stimer
[HV_SYNIC_STIMER_COUNT
];
471 DECLARE_BITMAP(stimer_pending_bitmap
, HV_SYNIC_STIMER_COUNT
);
474 struct kvm_vcpu_arch
{
476 * rip and regs accesses must go through
477 * kvm_{register,rip}_{read,write} functions.
479 unsigned long regs
[NR_VCPU_REGS
];
484 unsigned long cr0_guest_owned_bits
;
488 unsigned long cr4_guest_owned_bits
;
493 struct kvm_lapic
*apic
; /* kernel irqchip context */
495 DECLARE_BITMAP(ioapic_handled_vectors
, 256);
496 unsigned long apic_attention
;
497 int32_t apic_arb_prio
;
499 u64 ia32_misc_enable_msr
;
501 bool tpr_access_reporting
;
505 * Paging state of the vcpu
507 * If the vcpu runs in guest mode with two level paging this still saves
508 * the paging mode of the l1 guest. This context is always used to
514 * Paging state of an L2 guest (used for nested npt)
516 * This context will save all necessary information to walk page tables
517 * of the an L2 guest. This context is only initialized for page table
518 * walking and not for faulting since we never handle l2 page faults on
521 struct kvm_mmu nested_mmu
;
524 * Pointer to the mmu context currently used for
525 * gva_to_gpa translations.
527 struct kvm_mmu
*walk_mmu
;
529 struct kvm_mmu_memory_cache mmu_pte_list_desc_cache
;
530 struct kvm_mmu_memory_cache mmu_page_cache
;
531 struct kvm_mmu_memory_cache mmu_page_header_cache
;
533 struct fpu guest_fpu
;
535 u64 guest_supported_xcr0
;
536 u32 guest_xstate_size
;
538 struct kvm_pio_request pio
;
541 u8 event_exit_inst_len
;
543 struct kvm_queued_exception
{
551 struct kvm_queued_interrupt
{
557 int halt_request
; /* real mode on Intel only */
560 struct kvm_cpuid_entry2 cpuid_entries
[KVM_MAX_CPUID_ENTRIES
];
564 /* emulate context */
566 struct x86_emulate_ctxt emulate_ctxt
;
567 bool emulate_regs_need_sync_to_vcpu
;
568 bool emulate_regs_need_sync_from_vcpu
;
569 int (*complete_userspace_io
)(struct kvm_vcpu
*vcpu
);
572 struct pvclock_vcpu_time_info hv_clock
;
573 unsigned int hw_tsc_khz
;
574 struct gfn_to_hva_cache pv_time
;
575 bool pv_time_enabled
;
576 /* set guest stopped flag in pvclock flags field */
577 bool pvclock_set_guest_stopped_request
;
582 struct gfn_to_hva_cache stime
;
583 struct kvm_steal_time steal
;
589 u64 tsc_offset_adjustment
;
592 u64 this_tsc_generation
;
594 bool tsc_always_catchup
;
595 s8 virtual_tsc_shift
;
596 u32 virtual_tsc_mult
;
598 s64 ia32_tsc_adjust_msr
;
599 u64 tsc_scaling_ratio
;
601 atomic_t nmi_queued
; /* unprocessed asynchronous NMIs */
602 unsigned nmi_pending
; /* NMI queued after currently running handler */
603 bool nmi_injected
; /* Trying to inject an NMI this entry */
604 bool smi_pending
; /* SMI queued after currently running handler */
606 struct kvm_mtrr mtrr_state
;
609 unsigned switch_db_regs
;
610 unsigned long db
[KVM_NR_DB_REGS
];
613 unsigned long eff_db
[KVM_NR_DB_REGS
];
614 unsigned long guest_debug_dr7
;
622 /* Cache MMIO info */
630 /* used for guest single stepping over the given code position */
631 unsigned long singlestep_rip
;
633 struct kvm_vcpu_hv hyperv
;
635 cpumask_var_t wbinvd_dirty_mask
;
637 unsigned long last_retry_eip
;
638 unsigned long last_retry_addr
;
642 gfn_t gfns
[roundup_pow_of_two(ASYNC_PF_PER_VCPU
)];
643 struct gfn_to_hva_cache data
;
649 /* OSVW MSRs (AMD only) */
657 struct gfn_to_hva_cache data
;
661 * Indicate whether the access faults on its page table in guest
662 * which is set when fix page fault and used to detect unhandeable
665 bool write_fault_to_shadow_pgtable
;
667 /* set at EPT violation at this point */
668 unsigned long exit_qualification
;
670 /* pv related host specific info */
675 int pending_ioapic_eoi
;
676 int pending_external_vector
;
678 /* GPA available (AMD only) */
682 struct kvm_lpage_info
{
686 struct kvm_arch_memory_slot
{
687 struct kvm_rmap_head
*rmap
[KVM_NR_PAGE_SIZES
];
688 struct kvm_lpage_info
*lpage_info
[KVM_NR_PAGE_SIZES
- 1];
689 unsigned short *gfn_track
[KVM_PAGE_TRACK_MAX
];
693 * We use as the mode the number of bits allocated in the LDR for the
694 * logical processor ID. It happens that these are all powers of two.
695 * This makes it is very easy to detect cases where the APICs are
696 * configured for multiple modes; in that case, we cannot use the map and
697 * hence cannot use kvm_irq_delivery_to_apic_fast either.
699 #define KVM_APIC_MODE_XAPIC_CLUSTER 4
700 #define KVM_APIC_MODE_XAPIC_FLAT 8
701 #define KVM_APIC_MODE_X2APIC 16
703 struct kvm_apic_map
{
708 struct kvm_lapic
*xapic_flat_map
[8];
709 struct kvm_lapic
*xapic_cluster_map
[16][4];
711 struct kvm_lapic
*phys_map
[];
714 /* Hyper-V emulation context */
716 struct mutex hv_lock
;
721 /* Hyper-v based guest crash (NT kernel bugcheck) parameters */
722 u64 hv_crash_param
[HV_X64_MSR_CRASH_PARAMS
];
725 HV_REFERENCE_TSC_PAGE tsc_ref
;
728 enum kvm_irqchip_mode
{
730 KVM_IRQCHIP_KERNEL
, /* created with KVM_CREATE_IRQCHIP */
731 KVM_IRQCHIP_SPLIT
, /* created with KVM_CAP_SPLIT_IRQCHIP */
735 unsigned int n_used_mmu_pages
;
736 unsigned int n_requested_mmu_pages
;
737 unsigned int n_max_mmu_pages
;
738 unsigned int indirect_shadow_pages
;
739 unsigned long mmu_valid_gen
;
740 struct hlist_head mmu_page_hash
[KVM_NUM_MMU_PAGES
];
742 * Hash table of struct kvm_mmu_page.
744 struct list_head active_mmu_pages
;
745 struct list_head zapped_obsolete_pages
;
746 struct kvm_page_track_notifier_node mmu_sp_tracker
;
747 struct kvm_page_track_notifier_head track_notifier_head
;
749 struct list_head assigned_dev_head
;
750 struct iommu_domain
*iommu_domain
;
751 bool iommu_noncoherent
;
752 #define __KVM_HAVE_ARCH_NONCOHERENT_DMA
753 atomic_t noncoherent_dma_count
;
754 #define __KVM_HAVE_ARCH_ASSIGNED_DEVICE
755 atomic_t assigned_device_count
;
756 struct kvm_pic
*vpic
;
757 struct kvm_ioapic
*vioapic
;
758 struct kvm_pit
*vpit
;
759 atomic_t vapics_in_nmi_mode
;
760 struct mutex apic_map_lock
;
761 struct kvm_apic_map
*apic_map
;
763 unsigned int tss_addr
;
764 bool apic_access_page_done
;
768 bool ept_identity_pagetable_done
;
769 gpa_t ept_identity_map_addr
;
771 unsigned long irq_sources_bitmap
;
773 raw_spinlock_t tsc_write_lock
;
780 u64 cur_tsc_generation
;
781 int nr_vcpus_matched_tsc
;
783 spinlock_t pvclock_gtod_sync_lock
;
784 bool use_master_clock
;
785 u64 master_kernel_ns
;
786 u64 master_cycle_now
;
787 struct delayed_work kvmclock_update_work
;
788 struct delayed_work kvmclock_sync_work
;
790 struct kvm_xen_hvm_config xen_hvm_config
;
792 /* reads protected by irq_srcu, writes by irq_lock */
793 struct hlist_head mask_notifier_list
;
795 struct kvm_hv hyperv
;
797 #ifdef CONFIG_KVM_MMU_AUDIT
801 bool boot_vcpu_runs_old_kvmclock
;
806 enum kvm_irqchip_mode irqchip_mode
;
807 u8 nr_reserved_ioapic_pins
;
809 bool disabled_lapic_found
;
811 /* Struct members for AVIC */
814 struct page
*avic_logical_id_table_page
;
815 struct page
*avic_physical_id_table_page
;
816 struct hlist_node hnode
;
819 bool x2apic_broadcast_quirk_disabled
;
823 ulong mmu_shadow_zapped
;
825 ulong mmu_pte_updated
;
826 ulong mmu_pde_zapped
;
829 ulong mmu_cache_miss
;
831 ulong remote_tlb_flush
;
833 ulong max_mmu_page_hash_collisions
;
836 struct kvm_vcpu_stat
{
846 u64 irq_window_exits
;
847 u64 nmi_window_exits
;
849 u64 halt_successful_poll
;
850 u64 halt_attempted_poll
;
851 u64 halt_poll_invalid
;
853 u64 request_irq_exits
;
855 u64 host_state_reload
;
859 u64 insn_emulation_fail
;
866 struct x86_instruction_info
;
874 struct kvm_lapic_irq
{
886 int (*cpu_has_kvm_support
)(void); /* __init */
887 int (*disabled_by_bios
)(void); /* __init */
888 int (*hardware_enable
)(void);
889 void (*hardware_disable
)(void);
890 void (*check_processor_compatibility
)(void *rtn
);
891 int (*hardware_setup
)(void); /* __init */
892 void (*hardware_unsetup
)(void); /* __exit */
893 bool (*cpu_has_accelerated_tpr
)(void);
894 bool (*cpu_has_high_real_mode_segbase
)(void);
895 void (*cpuid_update
)(struct kvm_vcpu
*vcpu
);
897 int (*vm_init
)(struct kvm
*kvm
);
898 void (*vm_destroy
)(struct kvm
*kvm
);
900 /* Create, but do not attach this VCPU */
901 struct kvm_vcpu
*(*vcpu_create
)(struct kvm
*kvm
, unsigned id
);
902 void (*vcpu_free
)(struct kvm_vcpu
*vcpu
);
903 void (*vcpu_reset
)(struct kvm_vcpu
*vcpu
, bool init_event
);
905 void (*prepare_guest_switch
)(struct kvm_vcpu
*vcpu
);
906 void (*vcpu_load
)(struct kvm_vcpu
*vcpu
, int cpu
);
907 void (*vcpu_put
)(struct kvm_vcpu
*vcpu
);
909 void (*update_bp_intercept
)(struct kvm_vcpu
*vcpu
);
910 int (*get_msr
)(struct kvm_vcpu
*vcpu
, struct msr_data
*msr
);
911 int (*set_msr
)(struct kvm_vcpu
*vcpu
, struct msr_data
*msr
);
912 u64 (*get_segment_base
)(struct kvm_vcpu
*vcpu
, int seg
);
913 void (*get_segment
)(struct kvm_vcpu
*vcpu
,
914 struct kvm_segment
*var
, int seg
);
915 int (*get_cpl
)(struct kvm_vcpu
*vcpu
);
916 void (*set_segment
)(struct kvm_vcpu
*vcpu
,
917 struct kvm_segment
*var
, int seg
);
918 void (*get_cs_db_l_bits
)(struct kvm_vcpu
*vcpu
, int *db
, int *l
);
919 void (*decache_cr0_guest_bits
)(struct kvm_vcpu
*vcpu
);
920 void (*decache_cr3
)(struct kvm_vcpu
*vcpu
);
921 void (*decache_cr4_guest_bits
)(struct kvm_vcpu
*vcpu
);
922 void (*set_cr0
)(struct kvm_vcpu
*vcpu
, unsigned long cr0
);
923 void (*set_cr3
)(struct kvm_vcpu
*vcpu
, unsigned long cr3
);
924 int (*set_cr4
)(struct kvm_vcpu
*vcpu
, unsigned long cr4
);
925 void (*set_efer
)(struct kvm_vcpu
*vcpu
, u64 efer
);
926 void (*get_idt
)(struct kvm_vcpu
*vcpu
, struct desc_ptr
*dt
);
927 void (*set_idt
)(struct kvm_vcpu
*vcpu
, struct desc_ptr
*dt
);
928 void (*get_gdt
)(struct kvm_vcpu
*vcpu
, struct desc_ptr
*dt
);
929 void (*set_gdt
)(struct kvm_vcpu
*vcpu
, struct desc_ptr
*dt
);
930 u64 (*get_dr6
)(struct kvm_vcpu
*vcpu
);
931 void (*set_dr6
)(struct kvm_vcpu
*vcpu
, unsigned long value
);
932 void (*sync_dirty_debug_regs
)(struct kvm_vcpu
*vcpu
);
933 void (*set_dr7
)(struct kvm_vcpu
*vcpu
, unsigned long value
);
934 void (*cache_reg
)(struct kvm_vcpu
*vcpu
, enum kvm_reg reg
);
935 unsigned long (*get_rflags
)(struct kvm_vcpu
*vcpu
);
936 void (*set_rflags
)(struct kvm_vcpu
*vcpu
, unsigned long rflags
);
937 u32 (*get_pkru
)(struct kvm_vcpu
*vcpu
);
939 void (*tlb_flush
)(struct kvm_vcpu
*vcpu
);
941 void (*run
)(struct kvm_vcpu
*vcpu
);
942 int (*handle_exit
)(struct kvm_vcpu
*vcpu
);
943 void (*skip_emulated_instruction
)(struct kvm_vcpu
*vcpu
);
944 void (*set_interrupt_shadow
)(struct kvm_vcpu
*vcpu
, int mask
);
945 u32 (*get_interrupt_shadow
)(struct kvm_vcpu
*vcpu
);
946 void (*patch_hypercall
)(struct kvm_vcpu
*vcpu
,
947 unsigned char *hypercall_addr
);
948 void (*set_irq
)(struct kvm_vcpu
*vcpu
);
949 void (*set_nmi
)(struct kvm_vcpu
*vcpu
);
950 void (*queue_exception
)(struct kvm_vcpu
*vcpu
, unsigned nr
,
951 bool has_error_code
, u32 error_code
,
953 void (*cancel_injection
)(struct kvm_vcpu
*vcpu
);
954 int (*interrupt_allowed
)(struct kvm_vcpu
*vcpu
);
955 int (*nmi_allowed
)(struct kvm_vcpu
*vcpu
);
956 bool (*get_nmi_mask
)(struct kvm_vcpu
*vcpu
);
957 void (*set_nmi_mask
)(struct kvm_vcpu
*vcpu
, bool masked
);
958 void (*enable_nmi_window
)(struct kvm_vcpu
*vcpu
);
959 void (*enable_irq_window
)(struct kvm_vcpu
*vcpu
);
960 void (*update_cr8_intercept
)(struct kvm_vcpu
*vcpu
, int tpr
, int irr
);
961 bool (*get_enable_apicv
)(void);
962 void (*refresh_apicv_exec_ctrl
)(struct kvm_vcpu
*vcpu
);
963 void (*hwapic_irr_update
)(struct kvm_vcpu
*vcpu
, int max_irr
);
964 void (*hwapic_isr_update
)(struct kvm_vcpu
*vcpu
, int isr
);
965 void (*load_eoi_exitmap
)(struct kvm_vcpu
*vcpu
, u64
*eoi_exit_bitmap
);
966 void (*set_virtual_x2apic_mode
)(struct kvm_vcpu
*vcpu
, bool set
);
967 void (*set_apic_access_page_addr
)(struct kvm_vcpu
*vcpu
, hpa_t hpa
);
968 void (*deliver_posted_interrupt
)(struct kvm_vcpu
*vcpu
, int vector
);
969 int (*sync_pir_to_irr
)(struct kvm_vcpu
*vcpu
);
970 int (*set_tss_addr
)(struct kvm
*kvm
, unsigned int addr
);
971 int (*get_tdp_level
)(void);
972 u64 (*get_mt_mask
)(struct kvm_vcpu
*vcpu
, gfn_t gfn
, bool is_mmio
);
973 int (*get_lpage_level
)(void);
974 bool (*rdtscp_supported
)(void);
975 bool (*invpcid_supported
)(void);
977 void (*set_tdp_cr3
)(struct kvm_vcpu
*vcpu
, unsigned long cr3
);
979 void (*set_supported_cpuid
)(u32 func
, struct kvm_cpuid_entry2
*entry
);
981 bool (*has_wbinvd_exit
)(void);
983 void (*write_tsc_offset
)(struct kvm_vcpu
*vcpu
, u64 offset
);
985 void (*get_exit_info
)(struct kvm_vcpu
*vcpu
, u64
*info1
, u64
*info2
);
987 int (*check_intercept
)(struct kvm_vcpu
*vcpu
,
988 struct x86_instruction_info
*info
,
989 enum x86_intercept_stage stage
);
990 void (*handle_external_intr
)(struct kvm_vcpu
*vcpu
);
991 bool (*mpx_supported
)(void);
992 bool (*xsaves_supported
)(void);
994 int (*check_nested_events
)(struct kvm_vcpu
*vcpu
, bool external_intr
);
996 void (*sched_in
)(struct kvm_vcpu
*kvm
, int cpu
);
999 * Arch-specific dirty logging hooks. These hooks are only supposed to
1000 * be valid if the specific arch has hardware-accelerated dirty logging
1001 * mechanism. Currently only for PML on VMX.
1003 * - slot_enable_log_dirty:
1004 * called when enabling log dirty mode for the slot.
1005 * - slot_disable_log_dirty:
1006 * called when disabling log dirty mode for the slot.
1007 * also called when slot is created with log dirty disabled.
1008 * - flush_log_dirty:
1009 * called before reporting dirty_bitmap to userspace.
1010 * - enable_log_dirty_pt_masked:
1011 * called when reenabling log dirty for the GFNs in the mask after
1012 * corresponding bits are cleared in slot->dirty_bitmap.
1014 void (*slot_enable_log_dirty
)(struct kvm
*kvm
,
1015 struct kvm_memory_slot
*slot
);
1016 void (*slot_disable_log_dirty
)(struct kvm
*kvm
,
1017 struct kvm_memory_slot
*slot
);
1018 void (*flush_log_dirty
)(struct kvm
*kvm
);
1019 void (*enable_log_dirty_pt_masked
)(struct kvm
*kvm
,
1020 struct kvm_memory_slot
*slot
,
1021 gfn_t offset
, unsigned long mask
);
1022 /* pmu operations of sub-arch */
1023 const struct kvm_pmu_ops
*pmu_ops
;
1026 * Architecture specific hooks for vCPU blocking due to
1028 * Returns for .pre_block():
1029 * - 0 means continue to block the vCPU.
1030 * - 1 means we cannot block the vCPU since some event
1031 * happens during this period, such as, 'ON' bit in
1032 * posted-interrupts descriptor is set.
1034 int (*pre_block
)(struct kvm_vcpu
*vcpu
);
1035 void (*post_block
)(struct kvm_vcpu
*vcpu
);
1037 void (*vcpu_blocking
)(struct kvm_vcpu
*vcpu
);
1038 void (*vcpu_unblocking
)(struct kvm_vcpu
*vcpu
);
1040 int (*update_pi_irte
)(struct kvm
*kvm
, unsigned int host_irq
,
1041 uint32_t guest_irq
, bool set
);
1042 void (*apicv_post_state_restore
)(struct kvm_vcpu
*vcpu
);
1044 int (*set_hv_timer
)(struct kvm_vcpu
*vcpu
, u64 guest_deadline_tsc
);
1045 void (*cancel_hv_timer
)(struct kvm_vcpu
*vcpu
);
1047 void (*setup_mce
)(struct kvm_vcpu
*vcpu
);
1050 struct kvm_arch_async_pf
{
1057 extern struct kvm_x86_ops
*kvm_x86_ops
;
1059 int kvm_mmu_module_init(void);
1060 void kvm_mmu_module_exit(void);
1062 void kvm_mmu_destroy(struct kvm_vcpu
*vcpu
);
1063 int kvm_mmu_create(struct kvm_vcpu
*vcpu
);
1064 void kvm_mmu_setup(struct kvm_vcpu
*vcpu
);
1065 void kvm_mmu_init_vm(struct kvm
*kvm
);
1066 void kvm_mmu_uninit_vm(struct kvm
*kvm
);
1067 void kvm_mmu_set_mask_ptes(u64 user_mask
, u64 accessed_mask
,
1068 u64 dirty_mask
, u64 nx_mask
, u64 x_mask
, u64 p_mask
,
1069 u64 acc_track_mask
);
1071 void kvm_mmu_reset_context(struct kvm_vcpu
*vcpu
);
1072 void kvm_mmu_slot_remove_write_access(struct kvm
*kvm
,
1073 struct kvm_memory_slot
*memslot
);
1074 void kvm_mmu_zap_collapsible_sptes(struct kvm
*kvm
,
1075 const struct kvm_memory_slot
*memslot
);
1076 void kvm_mmu_slot_leaf_clear_dirty(struct kvm
*kvm
,
1077 struct kvm_memory_slot
*memslot
);
1078 void kvm_mmu_slot_largepage_remove_write_access(struct kvm
*kvm
,
1079 struct kvm_memory_slot
*memslot
);
1080 void kvm_mmu_slot_set_dirty(struct kvm
*kvm
,
1081 struct kvm_memory_slot
*memslot
);
1082 void kvm_mmu_clear_dirty_pt_masked(struct kvm
*kvm
,
1083 struct kvm_memory_slot
*slot
,
1084 gfn_t gfn_offset
, unsigned long mask
);
1085 void kvm_mmu_zap_all(struct kvm
*kvm
);
1086 void kvm_mmu_invalidate_mmio_sptes(struct kvm
*kvm
, struct kvm_memslots
*slots
);
1087 unsigned int kvm_mmu_calculate_mmu_pages(struct kvm
*kvm
);
1088 void kvm_mmu_change_mmu_pages(struct kvm
*kvm
, unsigned int kvm_nr_mmu_pages
);
1090 int load_pdptrs(struct kvm_vcpu
*vcpu
, struct kvm_mmu
*mmu
, unsigned long cr3
);
1091 bool pdptrs_changed(struct kvm_vcpu
*vcpu
);
1093 int emulator_write_phys(struct kvm_vcpu
*vcpu
, gpa_t gpa
,
1094 const void *val
, int bytes
);
1096 struct kvm_irq_mask_notifier
{
1097 void (*func
)(struct kvm_irq_mask_notifier
*kimn
, bool masked
);
1099 struct hlist_node link
;
1102 void kvm_register_irq_mask_notifier(struct kvm
*kvm
, int irq
,
1103 struct kvm_irq_mask_notifier
*kimn
);
1104 void kvm_unregister_irq_mask_notifier(struct kvm
*kvm
, int irq
,
1105 struct kvm_irq_mask_notifier
*kimn
);
1106 void kvm_fire_mask_notifiers(struct kvm
*kvm
, unsigned irqchip
, unsigned pin
,
1109 extern bool tdp_enabled
;
1111 u64
vcpu_tsc_khz(struct kvm_vcpu
*vcpu
);
1113 /* control of guest tsc rate supported? */
1114 extern bool kvm_has_tsc_control
;
1115 /* maximum supported tsc_khz for guests */
1116 extern u32 kvm_max_guest_tsc_khz
;
1117 /* number of bits of the fractional part of the TSC scaling ratio */
1118 extern u8 kvm_tsc_scaling_ratio_frac_bits
;
1119 /* maximum allowed value of TSC scaling ratio */
1120 extern u64 kvm_max_tsc_scaling_ratio
;
1121 /* 1ull << kvm_tsc_scaling_ratio_frac_bits */
1122 extern u64 kvm_default_tsc_scaling_ratio
;
1124 extern u64 kvm_mce_cap_supported
;
1126 enum emulation_result
{
1127 EMULATE_DONE
, /* no further processing */
1128 EMULATE_USER_EXIT
, /* kvm_run ready for userspace exit */
1129 EMULATE_FAIL
, /* can't emulate this instruction */
1132 #define EMULTYPE_NO_DECODE (1 << 0)
1133 #define EMULTYPE_TRAP_UD (1 << 1)
1134 #define EMULTYPE_SKIP (1 << 2)
1135 #define EMULTYPE_RETRY (1 << 3)
1136 #define EMULTYPE_NO_REEXECUTE (1 << 4)
1137 int x86_emulate_instruction(struct kvm_vcpu
*vcpu
, unsigned long cr2
,
1138 int emulation_type
, void *insn
, int insn_len
);
1140 static inline int emulate_instruction(struct kvm_vcpu
*vcpu
,
1143 return x86_emulate_instruction(vcpu
, 0, emulation_type
, NULL
, 0);
1146 void kvm_enable_efer_bits(u64
);
1147 bool kvm_valid_efer(struct kvm_vcpu
*vcpu
, u64 efer
);
1148 int kvm_get_msr(struct kvm_vcpu
*vcpu
, struct msr_data
*msr
);
1149 int kvm_set_msr(struct kvm_vcpu
*vcpu
, struct msr_data
*msr
);
1151 struct x86_emulate_ctxt
;
1153 int kvm_fast_pio_out(struct kvm_vcpu
*vcpu
, int size
, unsigned short port
);
1154 int kvm_fast_pio_in(struct kvm_vcpu
*vcpu
, int size
, unsigned short port
);
1155 int kvm_emulate_cpuid(struct kvm_vcpu
*vcpu
);
1156 int kvm_emulate_halt(struct kvm_vcpu
*vcpu
);
1157 int kvm_vcpu_halt(struct kvm_vcpu
*vcpu
);
1158 int kvm_emulate_wbinvd(struct kvm_vcpu
*vcpu
);
1160 void kvm_get_segment(struct kvm_vcpu
*vcpu
, struct kvm_segment
*var
, int seg
);
1161 int kvm_load_segment_descriptor(struct kvm_vcpu
*vcpu
, u16 selector
, int seg
);
1162 void kvm_vcpu_deliver_sipi_vector(struct kvm_vcpu
*vcpu
, u8 vector
);
1164 int kvm_task_switch(struct kvm_vcpu
*vcpu
, u16 tss_selector
, int idt_index
,
1165 int reason
, bool has_error_code
, u32 error_code
);
1167 int kvm_set_cr0(struct kvm_vcpu
*vcpu
, unsigned long cr0
);
1168 int kvm_set_cr3(struct kvm_vcpu
*vcpu
, unsigned long cr3
);
1169 int kvm_set_cr4(struct kvm_vcpu
*vcpu
, unsigned long cr4
);
1170 int kvm_set_cr8(struct kvm_vcpu
*vcpu
, unsigned long cr8
);
1171 int kvm_set_dr(struct kvm_vcpu
*vcpu
, int dr
, unsigned long val
);
1172 int kvm_get_dr(struct kvm_vcpu
*vcpu
, int dr
, unsigned long *val
);
1173 unsigned long kvm_get_cr8(struct kvm_vcpu
*vcpu
);
1174 void kvm_lmsw(struct kvm_vcpu
*vcpu
, unsigned long msw
);
1175 void kvm_get_cs_db_l_bits(struct kvm_vcpu
*vcpu
, int *db
, int *l
);
1176 int kvm_set_xcr(struct kvm_vcpu
*vcpu
, u32 index
, u64 xcr
);
1178 int kvm_get_msr_common(struct kvm_vcpu
*vcpu
, struct msr_data
*msr
);
1179 int kvm_set_msr_common(struct kvm_vcpu
*vcpu
, struct msr_data
*msr
);
1181 unsigned long kvm_get_rflags(struct kvm_vcpu
*vcpu
);
1182 void kvm_set_rflags(struct kvm_vcpu
*vcpu
, unsigned long rflags
);
1183 bool kvm_rdpmc(struct kvm_vcpu
*vcpu
);
1185 void kvm_queue_exception(struct kvm_vcpu
*vcpu
, unsigned nr
);
1186 void kvm_queue_exception_e(struct kvm_vcpu
*vcpu
, unsigned nr
, u32 error_code
);
1187 void kvm_requeue_exception(struct kvm_vcpu
*vcpu
, unsigned nr
);
1188 void kvm_requeue_exception_e(struct kvm_vcpu
*vcpu
, unsigned nr
, u32 error_code
);
1189 void kvm_inject_page_fault(struct kvm_vcpu
*vcpu
, struct x86_exception
*fault
);
1190 int kvm_read_guest_page_mmu(struct kvm_vcpu
*vcpu
, struct kvm_mmu
*mmu
,
1191 gfn_t gfn
, void *data
, int offset
, int len
,
1193 bool kvm_require_cpl(struct kvm_vcpu
*vcpu
, int required_cpl
);
1194 bool kvm_require_dr(struct kvm_vcpu
*vcpu
, int dr
);
1196 static inline int __kvm_irq_line_state(unsigned long *irq_state
,
1197 int irq_source_id
, int level
)
1199 /* Logical OR for level trig interrupt */
1201 __set_bit(irq_source_id
, irq_state
);
1203 __clear_bit(irq_source_id
, irq_state
);
1205 return !!(*irq_state
);
1208 int kvm_pic_set_irq(struct kvm_pic
*pic
, int irq
, int irq_source_id
, int level
);
1209 void kvm_pic_clear_all(struct kvm_pic
*pic
, int irq_source_id
);
1211 void kvm_inject_nmi(struct kvm_vcpu
*vcpu
);
1213 int kvm_mmu_unprotect_page(struct kvm
*kvm
, gfn_t gfn
);
1214 int kvm_mmu_unprotect_page_virt(struct kvm_vcpu
*vcpu
, gva_t gva
);
1215 void __kvm_mmu_free_some_pages(struct kvm_vcpu
*vcpu
);
1216 int kvm_mmu_load(struct kvm_vcpu
*vcpu
);
1217 void kvm_mmu_unload(struct kvm_vcpu
*vcpu
);
1218 void kvm_mmu_sync_roots(struct kvm_vcpu
*vcpu
);
1219 gpa_t
translate_nested_gpa(struct kvm_vcpu
*vcpu
, gpa_t gpa
, u32 access
,
1220 struct x86_exception
*exception
);
1221 gpa_t
kvm_mmu_gva_to_gpa_read(struct kvm_vcpu
*vcpu
, gva_t gva
,
1222 struct x86_exception
*exception
);
1223 gpa_t
kvm_mmu_gva_to_gpa_fetch(struct kvm_vcpu
*vcpu
, gva_t gva
,
1224 struct x86_exception
*exception
);
1225 gpa_t
kvm_mmu_gva_to_gpa_write(struct kvm_vcpu
*vcpu
, gva_t gva
,
1226 struct x86_exception
*exception
);
1227 gpa_t
kvm_mmu_gva_to_gpa_system(struct kvm_vcpu
*vcpu
, gva_t gva
,
1228 struct x86_exception
*exception
);
1230 void kvm_vcpu_deactivate_apicv(struct kvm_vcpu
*vcpu
);
1232 int kvm_emulate_hypercall(struct kvm_vcpu
*vcpu
);
1234 int kvm_mmu_page_fault(struct kvm_vcpu
*vcpu
, gva_t gva
, u64 error_code
,
1235 void *insn
, int insn_len
);
1236 void kvm_mmu_invlpg(struct kvm_vcpu
*vcpu
, gva_t gva
);
1237 void kvm_mmu_new_cr3(struct kvm_vcpu
*vcpu
);
1239 void kvm_enable_tdp(void);
1240 void kvm_disable_tdp(void);
1242 static inline gpa_t
translate_gpa(struct kvm_vcpu
*vcpu
, gpa_t gpa
, u32 access
,
1243 struct x86_exception
*exception
)
1248 static inline struct kvm_mmu_page
*page_header(hpa_t shadow_page
)
1250 struct page
*page
= pfn_to_page(shadow_page
>> PAGE_SHIFT
);
1252 return (struct kvm_mmu_page
*)page_private(page
);
1255 static inline u16
kvm_read_ldt(void)
1258 asm("sldt %0" : "=g"(ldt
));
1262 static inline void kvm_load_ldt(u16 sel
)
1264 asm("lldt %0" : : "rm"(sel
));
1267 #ifdef CONFIG_X86_64
1268 static inline unsigned long read_msr(unsigned long msr
)
1277 static inline u32
get_rdx_init_val(void)
1279 return 0x600; /* P6 family */
1282 static inline void kvm_inject_gp(struct kvm_vcpu
*vcpu
, u32 error_code
)
1284 kvm_queue_exception_e(vcpu
, GP_VECTOR
, error_code
);
1287 static inline u64
get_canonical(u64 la
)
1289 return ((int64_t)la
<< 16) >> 16;
1292 static inline bool is_noncanonical_address(u64 la
)
1294 #ifdef CONFIG_X86_64
1295 return get_canonical(la
) != la
;
1301 #define TSS_IOPB_BASE_OFFSET 0x66
1302 #define TSS_BASE_SIZE 0x68
1303 #define TSS_IOPB_SIZE (65536 / 8)
1304 #define TSS_REDIRECTION_SIZE (256 / 8)
1305 #define RMODE_TSS_SIZE \
1306 (TSS_BASE_SIZE + TSS_REDIRECTION_SIZE + TSS_IOPB_SIZE + 1)
1309 TASK_SWITCH_CALL
= 0,
1310 TASK_SWITCH_IRET
= 1,
1311 TASK_SWITCH_JMP
= 2,
1312 TASK_SWITCH_GATE
= 3,
1315 #define HF_GIF_MASK (1 << 0)
1316 #define HF_HIF_MASK (1 << 1)
1317 #define HF_VINTR_MASK (1 << 2)
1318 #define HF_NMI_MASK (1 << 3)
1319 #define HF_IRET_MASK (1 << 4)
1320 #define HF_GUEST_MASK (1 << 5) /* VCPU is in guest-mode */
1321 #define HF_SMM_MASK (1 << 6)
1322 #define HF_SMM_INSIDE_NMI_MASK (1 << 7)
1324 #define __KVM_VCPU_MULTIPLE_ADDRESS_SPACE
1325 #define KVM_ADDRESS_SPACE_NUM 2
1327 #define kvm_arch_vcpu_memslots_id(vcpu) ((vcpu)->arch.hflags & HF_SMM_MASK ? 1 : 0)
1328 #define kvm_memslots_for_spte_role(kvm, role) __kvm_memslots(kvm, (role).smm)
1331 * Hardware virtualization extension instructions may fault if a
1332 * reboot turns off virtualization while processes are running.
1333 * Trap the fault and ignore the instruction if that happens.
1335 asmlinkage
void kvm_spurious_fault(void);
1337 #define ____kvm_handle_fault_on_reboot(insn, cleanup_insn) \
1338 "666: " insn "\n\t" \
1340 ".pushsection .fixup, \"ax\" \n" \
1342 cleanup_insn "\n\t" \
1343 "cmpb $0, kvm_rebooting \n\t" \
1345 __ASM_SIZE(push) " $666b \n\t" \
1346 "call kvm_spurious_fault \n\t" \
1347 ".popsection \n\t" \
1348 _ASM_EXTABLE(666b, 667b)
1350 #define __kvm_handle_fault_on_reboot(insn) \
1351 ____kvm_handle_fault_on_reboot(insn, "")
1353 #define KVM_ARCH_WANT_MMU_NOTIFIER
1354 int kvm_unmap_hva(struct kvm
*kvm
, unsigned long hva
);
1355 int kvm_unmap_hva_range(struct kvm
*kvm
, unsigned long start
, unsigned long end
);
1356 int kvm_age_hva(struct kvm
*kvm
, unsigned long start
, unsigned long end
);
1357 int kvm_test_age_hva(struct kvm
*kvm
, unsigned long hva
);
1358 void kvm_set_spte_hva(struct kvm
*kvm
, unsigned long hva
, pte_t pte
);
1359 int kvm_cpu_has_injectable_intr(struct kvm_vcpu
*v
);
1360 int kvm_cpu_has_interrupt(struct kvm_vcpu
*vcpu
);
1361 int kvm_arch_interrupt_allowed(struct kvm_vcpu
*vcpu
);
1362 int kvm_cpu_get_interrupt(struct kvm_vcpu
*v
);
1363 void kvm_vcpu_reset(struct kvm_vcpu
*vcpu
, bool init_event
);
1364 void kvm_vcpu_reload_apic_access_page(struct kvm_vcpu
*vcpu
);
1365 void kvm_arch_mmu_notifier_invalidate_page(struct kvm
*kvm
,
1366 unsigned long address
);
1368 void kvm_define_shared_msr(unsigned index
, u32 msr
);
1369 int kvm_set_shared_msr(unsigned index
, u64 val
, u64 mask
);
1371 u64
kvm_scale_tsc(struct kvm_vcpu
*vcpu
, u64 tsc
);
1372 u64
kvm_read_l1_tsc(struct kvm_vcpu
*vcpu
, u64 host_tsc
);
1374 unsigned long kvm_get_linear_rip(struct kvm_vcpu
*vcpu
);
1375 bool kvm_is_linear_rip(struct kvm_vcpu
*vcpu
, unsigned long linear_rip
);
1377 void kvm_make_mclock_inprogress_request(struct kvm
*kvm
);
1378 void kvm_make_scan_ioapic_request(struct kvm
*kvm
);
1380 void kvm_arch_async_page_not_present(struct kvm_vcpu
*vcpu
,
1381 struct kvm_async_pf
*work
);
1382 void kvm_arch_async_page_present(struct kvm_vcpu
*vcpu
,
1383 struct kvm_async_pf
*work
);
1384 void kvm_arch_async_page_ready(struct kvm_vcpu
*vcpu
,
1385 struct kvm_async_pf
*work
);
1386 bool kvm_arch_can_inject_async_page_present(struct kvm_vcpu
*vcpu
);
1387 extern bool kvm_find_async_pf_gfn(struct kvm_vcpu
*vcpu
, gfn_t gfn
);
1389 int kvm_skip_emulated_instruction(struct kvm_vcpu
*vcpu
);
1390 int kvm_complete_insn_gp(struct kvm_vcpu
*vcpu
, int err
);
1392 int kvm_is_in_guest(void);
1394 int __x86_set_memory_region(struct kvm
*kvm
, int id
, gpa_t gpa
, u32 size
);
1395 int x86_set_memory_region(struct kvm
*kvm
, int id
, gpa_t gpa
, u32 size
);
1396 bool kvm_vcpu_is_reset_bsp(struct kvm_vcpu
*vcpu
);
1397 bool kvm_vcpu_is_bsp(struct kvm_vcpu
*vcpu
);
1399 bool kvm_intr_is_single_vcpu(struct kvm
*kvm
, struct kvm_lapic_irq
*irq
,
1400 struct kvm_vcpu
**dest_vcpu
);
1402 void kvm_set_msi_irq(struct kvm
*kvm
, struct kvm_kernel_irq_routing_entry
*e
,
1403 struct kvm_lapic_irq
*irq
);
1405 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu
*vcpu
)
1407 if (kvm_x86_ops
->vcpu_blocking
)
1408 kvm_x86_ops
->vcpu_blocking(vcpu
);
1411 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu
*vcpu
)
1413 if (kvm_x86_ops
->vcpu_unblocking
)
1414 kvm_x86_ops
->vcpu_unblocking(vcpu
);
1417 static inline void kvm_arch_vcpu_block_finish(struct kvm_vcpu
*vcpu
) {}
1419 static inline int kvm_cpu_get_apicid(int mps_cpu
)
1421 #ifdef CONFIG_X86_LOCAL_APIC
1422 return __default_cpu_present_to_apicid(mps_cpu
);
1429 #endif /* _ASM_X86_KVM_HOST_H */