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>
30 #include <asm/pvclock-abi.h>
33 #include <asm/msr-index.h>
36 #define KVM_MAX_VCPUS 255
37 #define KVM_SOFT_MAX_VCPUS 160
38 #define KVM_USER_MEM_SLOTS 509
39 /* memory slots that are not exposed to userspace */
40 #define KVM_PRIVATE_MEM_SLOTS 3
41 #define KVM_MEM_SLOTS_NUM (KVM_USER_MEM_SLOTS + KVM_PRIVATE_MEM_SLOTS)
43 #define KVM_PIO_PAGE_OFFSET 1
44 #define KVM_COALESCED_MMIO_PAGE_OFFSET 2
45 #define KVM_HALT_POLL_NS_DEFAULT 500000
47 #define KVM_IRQCHIP_NUM_PINS KVM_IOAPIC_NUM_PINS
49 /* x86-specific vcpu->requests bit members */
50 #define KVM_REQ_MIGRATE_TIMER 8
51 #define KVM_REQ_REPORT_TPR_ACCESS 9
52 #define KVM_REQ_TRIPLE_FAULT 10
53 #define KVM_REQ_MMU_SYNC 11
54 #define KVM_REQ_CLOCK_UPDATE 12
55 #define KVM_REQ_DEACTIVATE_FPU 13
56 #define KVM_REQ_EVENT 14
57 #define KVM_REQ_APF_HALT 15
58 #define KVM_REQ_STEAL_UPDATE 16
59 #define KVM_REQ_NMI 17
60 #define KVM_REQ_PMU 18
61 #define KVM_REQ_PMI 19
62 #define KVM_REQ_SMI 20
63 #define KVM_REQ_MASTERCLOCK_UPDATE 21
64 #define KVM_REQ_MCLOCK_INPROGRESS 22
65 #define KVM_REQ_SCAN_IOAPIC 23
66 #define KVM_REQ_GLOBAL_CLOCK_UPDATE 24
67 #define KVM_REQ_APIC_PAGE_RELOAD 25
68 #define KVM_REQ_HV_CRASH 26
69 #define KVM_REQ_IOAPIC_EOI_EXIT 27
70 #define KVM_REQ_HV_RESET 28
71 #define KVM_REQ_HV_EXIT 29
72 #define KVM_REQ_HV_STIMER 30
74 #define CR0_RESERVED_BITS \
75 (~(unsigned long)(X86_CR0_PE | X86_CR0_MP | X86_CR0_EM | X86_CR0_TS \
76 | X86_CR0_ET | X86_CR0_NE | X86_CR0_WP | X86_CR0_AM \
77 | X86_CR0_NW | X86_CR0_CD | X86_CR0_PG))
79 #define CR3_L_MODE_RESERVED_BITS 0xFFFFFF0000000000ULL
80 #define CR3_PCID_INVD BIT_64(63)
81 #define CR4_RESERVED_BITS \
82 (~(unsigned long)(X86_CR4_VME | X86_CR4_PVI | X86_CR4_TSD | X86_CR4_DE\
83 | X86_CR4_PSE | X86_CR4_PAE | X86_CR4_MCE \
84 | X86_CR4_PGE | X86_CR4_PCE | X86_CR4_OSFXSR | X86_CR4_PCIDE \
85 | X86_CR4_OSXSAVE | X86_CR4_SMEP | X86_CR4_FSGSBASE \
86 | X86_CR4_OSXMMEXCPT | X86_CR4_VMXE | X86_CR4_SMAP))
88 #define CR8_RESERVED_BITS (~(unsigned long)X86_CR8_TPR)
92 #define INVALID_PAGE (~(hpa_t)0)
93 #define VALID_PAGE(x) ((x) != INVALID_PAGE)
95 #define UNMAPPED_GVA (~(gpa_t)0)
97 /* KVM Hugepage definitions for x86 */
98 #define KVM_NR_PAGE_SIZES 3
99 #define KVM_HPAGE_GFN_SHIFT(x) (((x) - 1) * 9)
100 #define KVM_HPAGE_SHIFT(x) (PAGE_SHIFT + KVM_HPAGE_GFN_SHIFT(x))
101 #define KVM_HPAGE_SIZE(x) (1UL << KVM_HPAGE_SHIFT(x))
102 #define KVM_HPAGE_MASK(x) (~(KVM_HPAGE_SIZE(x) - 1))
103 #define KVM_PAGES_PER_HPAGE(x) (KVM_HPAGE_SIZE(x) / PAGE_SIZE)
105 static inline gfn_t
gfn_to_index(gfn_t gfn
, gfn_t base_gfn
, int level
)
107 /* KVM_HPAGE_GFN_SHIFT(PT_PAGE_TABLE_LEVEL) must be 0. */
108 return (gfn
>> KVM_HPAGE_GFN_SHIFT(level
)) -
109 (base_gfn
>> KVM_HPAGE_GFN_SHIFT(level
));
112 #define KVM_PERMILLE_MMU_PAGES 20
113 #define KVM_MIN_ALLOC_MMU_PAGES 64
114 #define KVM_MMU_HASH_SHIFT 10
115 #define KVM_NUM_MMU_PAGES (1 << KVM_MMU_HASH_SHIFT)
116 #define KVM_MIN_FREE_MMU_PAGES 5
117 #define KVM_REFILL_PAGES 25
118 #define KVM_MAX_CPUID_ENTRIES 80
119 #define KVM_NR_FIXED_MTRR_REGION 88
120 #define KVM_NR_VAR_MTRR 8
122 #define ASYNC_PF_PER_VCPU 64
148 VCPU_EXREG_PDPTR
= NR_VCPU_REGS
,
165 #include <asm/kvm_emulate.h>
167 #define KVM_NR_MEM_OBJS 40
169 #define KVM_NR_DB_REGS 4
171 #define DR6_BD (1 << 13)
172 #define DR6_BS (1 << 14)
173 #define DR6_RTM (1 << 16)
174 #define DR6_FIXED_1 0xfffe0ff0
175 #define DR6_INIT 0xffff0ff0
176 #define DR6_VOLATILE 0x0001e00f
178 #define DR7_BP_EN_MASK 0x000000ff
179 #define DR7_GE (1 << 9)
180 #define DR7_GD (1 << 13)
181 #define DR7_FIXED_1 0x00000400
182 #define DR7_VOLATILE 0xffff2bff
184 #define PFERR_PRESENT_BIT 0
185 #define PFERR_WRITE_BIT 1
186 #define PFERR_USER_BIT 2
187 #define PFERR_RSVD_BIT 3
188 #define PFERR_FETCH_BIT 4
190 #define PFERR_PRESENT_MASK (1U << PFERR_PRESENT_BIT)
191 #define PFERR_WRITE_MASK (1U << PFERR_WRITE_BIT)
192 #define PFERR_USER_MASK (1U << PFERR_USER_BIT)
193 #define PFERR_RSVD_MASK (1U << PFERR_RSVD_BIT)
194 #define PFERR_FETCH_MASK (1U << PFERR_FETCH_BIT)
196 /* apic attention bits */
197 #define KVM_APIC_CHECK_VAPIC 0
199 * The following bit is set with PV-EOI, unset on EOI.
200 * We detect PV-EOI changes by guest by comparing
201 * this bit with PV-EOI in guest memory.
202 * See the implementation in apic_update_pv_eoi.
204 #define KVM_APIC_PV_EOI_PENDING 1
206 struct kvm_kernel_irq_routing_entry
;
209 * We don't want allocation failures within the mmu code, so we preallocate
210 * enough memory for a single page fault in a cache.
212 struct kvm_mmu_memory_cache
{
214 void *objects
[KVM_NR_MEM_OBJS
];
217 union kvm_mmu_page_role
{
228 unsigned smep_andnot_wp
:1;
229 unsigned smap_andnot_wp
:1;
233 * This is left at the top of the word so that
234 * kvm_memslots_for_spte_role can extract it with a
235 * simple shift. While there is room, give it a whole
236 * byte so it is also faster to load it from memory.
242 struct kvm_rmap_head
{
246 struct kvm_mmu_page
{
247 struct list_head link
;
248 struct hlist_node hash_link
;
251 * The following two entries are used to key the shadow page in the
255 union kvm_mmu_page_role role
;
258 /* hold the gfn of each spte inside spt */
261 int root_count
; /* Currently serving as active root */
262 unsigned int unsync_children
;
263 struct kvm_rmap_head parent_ptes
; /* rmap pointers to parent sptes */
265 /* The page is obsolete if mmu_valid_gen != kvm->arch.mmu_valid_gen. */
266 unsigned long mmu_valid_gen
;
268 DECLARE_BITMAP(unsync_child_bitmap
, 512);
272 * Used out of the mmu-lock to avoid reading spte values while an
273 * update is in progress; see the comments in __get_spte_lockless().
275 int clear_spte_count
;
278 /* Number of writes since the last time traversal visited this page. */
279 int write_flooding_count
;
282 struct kvm_pio_request
{
289 struct rsvd_bits_validate
{
290 u64 rsvd_bits_mask
[2][4];
295 * x86 supports 3 paging modes (4-level 64-bit, 3-level 64-bit, and 2-level
296 * 32-bit). The kvm_mmu structure abstracts the details of the current mmu
300 void (*set_cr3
)(struct kvm_vcpu
*vcpu
, unsigned long root
);
301 unsigned long (*get_cr3
)(struct kvm_vcpu
*vcpu
);
302 u64 (*get_pdptr
)(struct kvm_vcpu
*vcpu
, int index
);
303 int (*page_fault
)(struct kvm_vcpu
*vcpu
, gva_t gva
, u32 err
,
305 void (*inject_page_fault
)(struct kvm_vcpu
*vcpu
,
306 struct x86_exception
*fault
);
307 gpa_t (*gva_to_gpa
)(struct kvm_vcpu
*vcpu
, gva_t gva
, u32 access
,
308 struct x86_exception
*exception
);
309 gpa_t (*translate_gpa
)(struct kvm_vcpu
*vcpu
, gpa_t gpa
, u32 access
,
310 struct x86_exception
*exception
);
311 int (*sync_page
)(struct kvm_vcpu
*vcpu
,
312 struct kvm_mmu_page
*sp
);
313 void (*invlpg
)(struct kvm_vcpu
*vcpu
, gva_t gva
);
314 void (*update_pte
)(struct kvm_vcpu
*vcpu
, struct kvm_mmu_page
*sp
,
315 u64
*spte
, const void *pte
);
318 int shadow_root_level
;
319 union kvm_mmu_page_role base_role
;
323 * Bitmap; bit set = permission fault
324 * Byte index: page fault error code [4:1]
325 * Bit index: pte permissions in ACC_* format
333 * check zero bits on shadow page table entries, these
334 * bits include not only hardware reserved bits but also
335 * the bits spte never used.
337 struct rsvd_bits_validate shadow_zero_check
;
339 struct rsvd_bits_validate guest_rsvd_check
;
342 * Bitmap: bit set = last pte in walk
343 * index[0:1]: level (zero-based)
350 u64 pdptrs
[4]; /* pae */
363 struct perf_event
*perf_event
;
364 struct kvm_vcpu
*vcpu
;
368 unsigned nr_arch_gp_counters
;
369 unsigned nr_arch_fixed_counters
;
370 unsigned available_event_types
;
375 u64 counter_bitmask
[2];
376 u64 global_ctrl_mask
;
379 struct kvm_pmc gp_counters
[INTEL_PMC_MAX_GENERIC
];
380 struct kvm_pmc fixed_counters
[INTEL_PMC_MAX_FIXED
];
381 struct irq_work irq_work
;
388 KVM_DEBUGREG_BP_ENABLED
= 1,
389 KVM_DEBUGREG_WONT_EXIT
= 2,
390 KVM_DEBUGREG_RELOAD
= 4,
393 struct kvm_mtrr_range
{
396 struct list_head node
;
400 struct kvm_mtrr_range var_ranges
[KVM_NR_VAR_MTRR
];
401 mtrr_type fixed_ranges
[KVM_NR_FIXED_MTRR_REGION
];
404 struct list_head head
;
407 /* Hyper-V SynIC timer */
408 struct kvm_vcpu_hv_stimer
{
409 struct hrtimer timer
;
414 struct hv_message msg
;
418 /* Hyper-V synthetic interrupt controller (SynIC)*/
419 struct kvm_vcpu_hv_synic
{
424 atomic64_t sint
[HV_SYNIC_SINT_COUNT
];
425 atomic_t sint_to_gsi
[HV_SYNIC_SINT_COUNT
];
426 DECLARE_BITMAP(auto_eoi_bitmap
, 256);
427 DECLARE_BITMAP(vec_bitmap
, 256);
431 /* Hyper-V per vcpu emulation context */
435 struct kvm_vcpu_hv_synic synic
;
436 struct kvm_hyperv_exit exit
;
437 struct kvm_vcpu_hv_stimer stimer
[HV_SYNIC_STIMER_COUNT
];
438 DECLARE_BITMAP(stimer_pending_bitmap
, HV_SYNIC_STIMER_COUNT
);
441 struct kvm_vcpu_arch
{
443 * rip and regs accesses must go through
444 * kvm_{register,rip}_{read,write} functions.
446 unsigned long regs
[NR_VCPU_REGS
];
451 unsigned long cr0_guest_owned_bits
;
455 unsigned long cr4_guest_owned_bits
;
460 struct kvm_lapic
*apic
; /* kernel irqchip context */
462 DECLARE_BITMAP(ioapic_handled_vectors
, 256);
463 unsigned long apic_attention
;
464 int32_t apic_arb_prio
;
466 u64 ia32_misc_enable_msr
;
468 bool tpr_access_reporting
;
472 * Paging state of the vcpu
474 * If the vcpu runs in guest mode with two level paging this still saves
475 * the paging mode of the l1 guest. This context is always used to
481 * Paging state of an L2 guest (used for nested npt)
483 * This context will save all necessary information to walk page tables
484 * of the an L2 guest. This context is only initialized for page table
485 * walking and not for faulting since we never handle l2 page faults on
488 struct kvm_mmu nested_mmu
;
491 * Pointer to the mmu context currently used for
492 * gva_to_gpa translations.
494 struct kvm_mmu
*walk_mmu
;
496 struct kvm_mmu_memory_cache mmu_pte_list_desc_cache
;
497 struct kvm_mmu_memory_cache mmu_page_cache
;
498 struct kvm_mmu_memory_cache mmu_page_header_cache
;
500 struct fpu guest_fpu
;
503 u64 guest_supported_xcr0
;
504 u32 guest_xstate_size
;
506 struct kvm_pio_request pio
;
509 u8 event_exit_inst_len
;
511 struct kvm_queued_exception
{
519 struct kvm_queued_interrupt
{
525 int halt_request
; /* real mode on Intel only */
528 struct kvm_cpuid_entry2 cpuid_entries
[KVM_MAX_CPUID_ENTRIES
];
532 /* emulate context */
534 struct x86_emulate_ctxt emulate_ctxt
;
535 bool emulate_regs_need_sync_to_vcpu
;
536 bool emulate_regs_need_sync_from_vcpu
;
537 int (*complete_userspace_io
)(struct kvm_vcpu
*vcpu
);
540 struct pvclock_vcpu_time_info hv_clock
;
541 unsigned int hw_tsc_khz
;
542 struct gfn_to_hva_cache pv_time
;
543 bool pv_time_enabled
;
544 /* set guest stopped flag in pvclock flags field */
545 bool pvclock_set_guest_stopped_request
;
551 struct gfn_to_hva_cache stime
;
552 struct kvm_steal_time steal
;
557 u64 tsc_offset_adjustment
;
560 u64 this_tsc_generation
;
562 bool tsc_always_catchup
;
563 s8 virtual_tsc_shift
;
564 u32 virtual_tsc_mult
;
566 s64 ia32_tsc_adjust_msr
;
567 u64 tsc_scaling_ratio
;
569 atomic_t nmi_queued
; /* unprocessed asynchronous NMIs */
570 unsigned nmi_pending
; /* NMI queued after currently running handler */
571 bool nmi_injected
; /* Trying to inject an NMI this entry */
572 bool smi_pending
; /* SMI queued after currently running handler */
574 struct kvm_mtrr mtrr_state
;
577 unsigned switch_db_regs
;
578 unsigned long db
[KVM_NR_DB_REGS
];
581 unsigned long eff_db
[KVM_NR_DB_REGS
];
582 unsigned long guest_debug_dr7
;
589 /* Cache MMIO info */
597 /* used for guest single stepping over the given code position */
598 unsigned long singlestep_rip
;
600 struct kvm_vcpu_hv hyperv
;
602 cpumask_var_t wbinvd_dirty_mask
;
604 unsigned long last_retry_eip
;
605 unsigned long last_retry_addr
;
609 gfn_t gfns
[roundup_pow_of_two(ASYNC_PF_PER_VCPU
)];
610 struct gfn_to_hva_cache data
;
616 /* OSVW MSRs (AMD only) */
624 struct gfn_to_hva_cache data
;
628 * Indicate whether the access faults on its page table in guest
629 * which is set when fix page fault and used to detect unhandeable
632 bool write_fault_to_shadow_pgtable
;
634 /* set at EPT violation at this point */
635 unsigned long exit_qualification
;
637 /* pv related host specific info */
642 int pending_ioapic_eoi
;
643 int pending_external_vector
;
646 struct kvm_lpage_info
{
650 struct kvm_arch_memory_slot
{
651 struct kvm_rmap_head
*rmap
[KVM_NR_PAGE_SIZES
];
652 struct kvm_lpage_info
*lpage_info
[KVM_NR_PAGE_SIZES
- 1];
656 * We use as the mode the number of bits allocated in the LDR for the
657 * logical processor ID. It happens that these are all powers of two.
658 * This makes it is very easy to detect cases where the APICs are
659 * configured for multiple modes; in that case, we cannot use the map and
660 * hence cannot use kvm_irq_delivery_to_apic_fast either.
662 #define KVM_APIC_MODE_XAPIC_CLUSTER 4
663 #define KVM_APIC_MODE_XAPIC_FLAT 8
664 #define KVM_APIC_MODE_X2APIC 16
666 struct kvm_apic_map
{
669 struct kvm_lapic
*phys_map
[256];
670 /* first index is cluster id second is cpu id in a cluster */
671 struct kvm_lapic
*logical_map
[16][16];
674 /* Hyper-V emulation context */
680 /* Hyper-v based guest crash (NT kernel bugcheck) parameters */
681 u64 hv_crash_param
[HV_X64_MSR_CRASH_PARAMS
];
686 unsigned int n_used_mmu_pages
;
687 unsigned int n_requested_mmu_pages
;
688 unsigned int n_max_mmu_pages
;
689 unsigned int indirect_shadow_pages
;
690 unsigned long mmu_valid_gen
;
691 struct hlist_head mmu_page_hash
[KVM_NUM_MMU_PAGES
];
693 * Hash table of struct kvm_mmu_page.
695 struct list_head active_mmu_pages
;
696 struct list_head zapped_obsolete_pages
;
698 struct list_head assigned_dev_head
;
699 struct iommu_domain
*iommu_domain
;
700 bool iommu_noncoherent
;
701 #define __KVM_HAVE_ARCH_NONCOHERENT_DMA
702 atomic_t noncoherent_dma_count
;
703 #define __KVM_HAVE_ARCH_ASSIGNED_DEVICE
704 atomic_t assigned_device_count
;
705 struct kvm_pic
*vpic
;
706 struct kvm_ioapic
*vioapic
;
707 struct kvm_pit
*vpit
;
708 atomic_t vapics_in_nmi_mode
;
709 struct mutex apic_map_lock
;
710 struct kvm_apic_map
*apic_map
;
712 unsigned int tss_addr
;
713 bool apic_access_page_done
;
717 bool ept_identity_pagetable_done
;
718 gpa_t ept_identity_map_addr
;
720 unsigned long irq_sources_bitmap
;
722 raw_spinlock_t tsc_write_lock
;
729 u64 cur_tsc_generation
;
730 int nr_vcpus_matched_tsc
;
732 spinlock_t pvclock_gtod_sync_lock
;
733 bool use_master_clock
;
734 u64 master_kernel_ns
;
735 cycle_t master_cycle_now
;
736 struct delayed_work kvmclock_update_work
;
737 struct delayed_work kvmclock_sync_work
;
739 struct kvm_xen_hvm_config xen_hvm_config
;
741 /* reads protected by irq_srcu, writes by irq_lock */
742 struct hlist_head mask_notifier_list
;
744 struct kvm_hv hyperv
;
746 #ifdef CONFIG_KVM_MMU_AUDIT
750 bool boot_vcpu_runs_old_kvmclock
;
756 u8 nr_reserved_ioapic_pins
;
760 u32 mmu_shadow_zapped
;
768 u32 remote_tlb_flush
;
772 struct kvm_vcpu_stat
{
782 u32 irq_window_exits
;
783 u32 nmi_window_exits
;
785 u32 halt_successful_poll
;
786 u32 halt_attempted_poll
;
788 u32 request_irq_exits
;
790 u32 host_state_reload
;
794 u32 insn_emulation_fail
;
800 struct x86_instruction_info
;
808 struct kvm_lapic_irq
{
820 int (*cpu_has_kvm_support
)(void); /* __init */
821 int (*disabled_by_bios
)(void); /* __init */
822 int (*hardware_enable
)(void);
823 void (*hardware_disable
)(void);
824 void (*check_processor_compatibility
)(void *rtn
);
825 int (*hardware_setup
)(void); /* __init */
826 void (*hardware_unsetup
)(void); /* __exit */
827 bool (*cpu_has_accelerated_tpr
)(void);
828 bool (*cpu_has_high_real_mode_segbase
)(void);
829 void (*cpuid_update
)(struct kvm_vcpu
*vcpu
);
831 /* Create, but do not attach this VCPU */
832 struct kvm_vcpu
*(*vcpu_create
)(struct kvm
*kvm
, unsigned id
);
833 void (*vcpu_free
)(struct kvm_vcpu
*vcpu
);
834 void (*vcpu_reset
)(struct kvm_vcpu
*vcpu
, bool init_event
);
836 void (*prepare_guest_switch
)(struct kvm_vcpu
*vcpu
);
837 void (*vcpu_load
)(struct kvm_vcpu
*vcpu
, int cpu
);
838 void (*vcpu_put
)(struct kvm_vcpu
*vcpu
);
840 void (*update_bp_intercept
)(struct kvm_vcpu
*vcpu
);
841 int (*get_msr
)(struct kvm_vcpu
*vcpu
, struct msr_data
*msr
);
842 int (*set_msr
)(struct kvm_vcpu
*vcpu
, struct msr_data
*msr
);
843 u64 (*get_segment_base
)(struct kvm_vcpu
*vcpu
, int seg
);
844 void (*get_segment
)(struct kvm_vcpu
*vcpu
,
845 struct kvm_segment
*var
, int seg
);
846 int (*get_cpl
)(struct kvm_vcpu
*vcpu
);
847 void (*set_segment
)(struct kvm_vcpu
*vcpu
,
848 struct kvm_segment
*var
, int seg
);
849 void (*get_cs_db_l_bits
)(struct kvm_vcpu
*vcpu
, int *db
, int *l
);
850 void (*decache_cr0_guest_bits
)(struct kvm_vcpu
*vcpu
);
851 void (*decache_cr3
)(struct kvm_vcpu
*vcpu
);
852 void (*decache_cr4_guest_bits
)(struct kvm_vcpu
*vcpu
);
853 void (*set_cr0
)(struct kvm_vcpu
*vcpu
, unsigned long cr0
);
854 void (*set_cr3
)(struct kvm_vcpu
*vcpu
, unsigned long cr3
);
855 int (*set_cr4
)(struct kvm_vcpu
*vcpu
, unsigned long cr4
);
856 void (*set_efer
)(struct kvm_vcpu
*vcpu
, u64 efer
);
857 void (*get_idt
)(struct kvm_vcpu
*vcpu
, struct desc_ptr
*dt
);
858 void (*set_idt
)(struct kvm_vcpu
*vcpu
, struct desc_ptr
*dt
);
859 void (*get_gdt
)(struct kvm_vcpu
*vcpu
, struct desc_ptr
*dt
);
860 void (*set_gdt
)(struct kvm_vcpu
*vcpu
, struct desc_ptr
*dt
);
861 u64 (*get_dr6
)(struct kvm_vcpu
*vcpu
);
862 void (*set_dr6
)(struct kvm_vcpu
*vcpu
, unsigned long value
);
863 void (*sync_dirty_debug_regs
)(struct kvm_vcpu
*vcpu
);
864 void (*set_dr7
)(struct kvm_vcpu
*vcpu
, unsigned long value
);
865 void (*cache_reg
)(struct kvm_vcpu
*vcpu
, enum kvm_reg reg
);
866 unsigned long (*get_rflags
)(struct kvm_vcpu
*vcpu
);
867 void (*set_rflags
)(struct kvm_vcpu
*vcpu
, unsigned long rflags
);
868 void (*fpu_activate
)(struct kvm_vcpu
*vcpu
);
869 void (*fpu_deactivate
)(struct kvm_vcpu
*vcpu
);
871 void (*tlb_flush
)(struct kvm_vcpu
*vcpu
);
873 void (*run
)(struct kvm_vcpu
*vcpu
);
874 int (*handle_exit
)(struct kvm_vcpu
*vcpu
);
875 void (*skip_emulated_instruction
)(struct kvm_vcpu
*vcpu
);
876 void (*set_interrupt_shadow
)(struct kvm_vcpu
*vcpu
, int mask
);
877 u32 (*get_interrupt_shadow
)(struct kvm_vcpu
*vcpu
);
878 void (*patch_hypercall
)(struct kvm_vcpu
*vcpu
,
879 unsigned char *hypercall_addr
);
880 void (*set_irq
)(struct kvm_vcpu
*vcpu
);
881 void (*set_nmi
)(struct kvm_vcpu
*vcpu
);
882 void (*queue_exception
)(struct kvm_vcpu
*vcpu
, unsigned nr
,
883 bool has_error_code
, u32 error_code
,
885 void (*cancel_injection
)(struct kvm_vcpu
*vcpu
);
886 int (*interrupt_allowed
)(struct kvm_vcpu
*vcpu
);
887 int (*nmi_allowed
)(struct kvm_vcpu
*vcpu
);
888 bool (*get_nmi_mask
)(struct kvm_vcpu
*vcpu
);
889 void (*set_nmi_mask
)(struct kvm_vcpu
*vcpu
, bool masked
);
890 void (*enable_nmi_window
)(struct kvm_vcpu
*vcpu
);
891 void (*enable_irq_window
)(struct kvm_vcpu
*vcpu
);
892 void (*update_cr8_intercept
)(struct kvm_vcpu
*vcpu
, int tpr
, int irr
);
893 bool (*get_enable_apicv
)(void);
894 void (*refresh_apicv_exec_ctrl
)(struct kvm_vcpu
*vcpu
);
895 void (*hwapic_irr_update
)(struct kvm_vcpu
*vcpu
, int max_irr
);
896 void (*hwapic_isr_update
)(struct kvm
*kvm
, int isr
);
897 void (*load_eoi_exitmap
)(struct kvm_vcpu
*vcpu
, u64
*eoi_exit_bitmap
);
898 void (*set_virtual_x2apic_mode
)(struct kvm_vcpu
*vcpu
, bool set
);
899 void (*set_apic_access_page_addr
)(struct kvm_vcpu
*vcpu
, hpa_t hpa
);
900 void (*deliver_posted_interrupt
)(struct kvm_vcpu
*vcpu
, int vector
);
901 void (*sync_pir_to_irr
)(struct kvm_vcpu
*vcpu
);
902 int (*set_tss_addr
)(struct kvm
*kvm
, unsigned int addr
);
903 int (*get_tdp_level
)(void);
904 u64 (*get_mt_mask
)(struct kvm_vcpu
*vcpu
, gfn_t gfn
, bool is_mmio
);
905 int (*get_lpage_level
)(void);
906 bool (*rdtscp_supported
)(void);
907 bool (*invpcid_supported
)(void);
908 void (*adjust_tsc_offset_guest
)(struct kvm_vcpu
*vcpu
, s64 adjustment
);
910 void (*set_tdp_cr3
)(struct kvm_vcpu
*vcpu
, unsigned long cr3
);
912 void (*set_supported_cpuid
)(u32 func
, struct kvm_cpuid_entry2
*entry
);
914 bool (*has_wbinvd_exit
)(void);
916 u64 (*read_tsc_offset
)(struct kvm_vcpu
*vcpu
);
917 void (*write_tsc_offset
)(struct kvm_vcpu
*vcpu
, u64 offset
);
919 u64 (*read_l1_tsc
)(struct kvm_vcpu
*vcpu
, u64 host_tsc
);
921 void (*get_exit_info
)(struct kvm_vcpu
*vcpu
, u64
*info1
, u64
*info2
);
923 int (*check_intercept
)(struct kvm_vcpu
*vcpu
,
924 struct x86_instruction_info
*info
,
925 enum x86_intercept_stage stage
);
926 void (*handle_external_intr
)(struct kvm_vcpu
*vcpu
);
927 bool (*mpx_supported
)(void);
928 bool (*xsaves_supported
)(void);
930 int (*check_nested_events
)(struct kvm_vcpu
*vcpu
, bool external_intr
);
932 void (*sched_in
)(struct kvm_vcpu
*kvm
, int cpu
);
935 * Arch-specific dirty logging hooks. These hooks are only supposed to
936 * be valid if the specific arch has hardware-accelerated dirty logging
937 * mechanism. Currently only for PML on VMX.
939 * - slot_enable_log_dirty:
940 * called when enabling log dirty mode for the slot.
941 * - slot_disable_log_dirty:
942 * called when disabling log dirty mode for the slot.
943 * also called when slot is created with log dirty disabled.
945 * called before reporting dirty_bitmap to userspace.
946 * - enable_log_dirty_pt_masked:
947 * called when reenabling log dirty for the GFNs in the mask after
948 * corresponding bits are cleared in slot->dirty_bitmap.
950 void (*slot_enable_log_dirty
)(struct kvm
*kvm
,
951 struct kvm_memory_slot
*slot
);
952 void (*slot_disable_log_dirty
)(struct kvm
*kvm
,
953 struct kvm_memory_slot
*slot
);
954 void (*flush_log_dirty
)(struct kvm
*kvm
);
955 void (*enable_log_dirty_pt_masked
)(struct kvm
*kvm
,
956 struct kvm_memory_slot
*slot
,
957 gfn_t offset
, unsigned long mask
);
958 /* pmu operations of sub-arch */
959 const struct kvm_pmu_ops
*pmu_ops
;
962 * Architecture specific hooks for vCPU blocking due to
964 * Returns for .pre_block():
965 * - 0 means continue to block the vCPU.
966 * - 1 means we cannot block the vCPU since some event
967 * happens during this period, such as, 'ON' bit in
968 * posted-interrupts descriptor is set.
970 int (*pre_block
)(struct kvm_vcpu
*vcpu
);
971 void (*post_block
)(struct kvm_vcpu
*vcpu
);
972 int (*update_pi_irte
)(struct kvm
*kvm
, unsigned int host_irq
,
973 uint32_t guest_irq
, bool set
);
976 struct kvm_arch_async_pf
{
983 extern struct kvm_x86_ops
*kvm_x86_ops
;
985 int kvm_mmu_module_init(void);
986 void kvm_mmu_module_exit(void);
988 void kvm_mmu_destroy(struct kvm_vcpu
*vcpu
);
989 int kvm_mmu_create(struct kvm_vcpu
*vcpu
);
990 void kvm_mmu_setup(struct kvm_vcpu
*vcpu
);
991 void kvm_mmu_set_mask_ptes(u64 user_mask
, u64 accessed_mask
,
992 u64 dirty_mask
, u64 nx_mask
, u64 x_mask
);
994 void kvm_mmu_reset_context(struct kvm_vcpu
*vcpu
);
995 void kvm_mmu_slot_remove_write_access(struct kvm
*kvm
,
996 struct kvm_memory_slot
*memslot
);
997 void kvm_mmu_zap_collapsible_sptes(struct kvm
*kvm
,
998 const struct kvm_memory_slot
*memslot
);
999 void kvm_mmu_slot_leaf_clear_dirty(struct kvm
*kvm
,
1000 struct kvm_memory_slot
*memslot
);
1001 void kvm_mmu_slot_largepage_remove_write_access(struct kvm
*kvm
,
1002 struct kvm_memory_slot
*memslot
);
1003 void kvm_mmu_slot_set_dirty(struct kvm
*kvm
,
1004 struct kvm_memory_slot
*memslot
);
1005 void kvm_mmu_clear_dirty_pt_masked(struct kvm
*kvm
,
1006 struct kvm_memory_slot
*slot
,
1007 gfn_t gfn_offset
, unsigned long mask
);
1008 void kvm_mmu_zap_all(struct kvm
*kvm
);
1009 void kvm_mmu_invalidate_mmio_sptes(struct kvm
*kvm
, struct kvm_memslots
*slots
);
1010 unsigned int kvm_mmu_calculate_mmu_pages(struct kvm
*kvm
);
1011 void kvm_mmu_change_mmu_pages(struct kvm
*kvm
, unsigned int kvm_nr_mmu_pages
);
1013 int load_pdptrs(struct kvm_vcpu
*vcpu
, struct kvm_mmu
*mmu
, unsigned long cr3
);
1015 int emulator_write_phys(struct kvm_vcpu
*vcpu
, gpa_t gpa
,
1016 const void *val
, int bytes
);
1018 struct kvm_irq_mask_notifier
{
1019 void (*func
)(struct kvm_irq_mask_notifier
*kimn
, bool masked
);
1021 struct hlist_node link
;
1024 void kvm_register_irq_mask_notifier(struct kvm
*kvm
, int irq
,
1025 struct kvm_irq_mask_notifier
*kimn
);
1026 void kvm_unregister_irq_mask_notifier(struct kvm
*kvm
, int irq
,
1027 struct kvm_irq_mask_notifier
*kimn
);
1028 void kvm_fire_mask_notifiers(struct kvm
*kvm
, unsigned irqchip
, unsigned pin
,
1031 extern bool tdp_enabled
;
1033 u64
vcpu_tsc_khz(struct kvm_vcpu
*vcpu
);
1035 /* control of guest tsc rate supported? */
1036 extern bool kvm_has_tsc_control
;
1037 /* maximum supported tsc_khz for guests */
1038 extern u32 kvm_max_guest_tsc_khz
;
1039 /* number of bits of the fractional part of the TSC scaling ratio */
1040 extern u8 kvm_tsc_scaling_ratio_frac_bits
;
1041 /* maximum allowed value of TSC scaling ratio */
1042 extern u64 kvm_max_tsc_scaling_ratio
;
1044 enum emulation_result
{
1045 EMULATE_DONE
, /* no further processing */
1046 EMULATE_USER_EXIT
, /* kvm_run ready for userspace exit */
1047 EMULATE_FAIL
, /* can't emulate this instruction */
1050 #define EMULTYPE_NO_DECODE (1 << 0)
1051 #define EMULTYPE_TRAP_UD (1 << 1)
1052 #define EMULTYPE_SKIP (1 << 2)
1053 #define EMULTYPE_RETRY (1 << 3)
1054 #define EMULTYPE_NO_REEXECUTE (1 << 4)
1055 int x86_emulate_instruction(struct kvm_vcpu
*vcpu
, unsigned long cr2
,
1056 int emulation_type
, void *insn
, int insn_len
);
1058 static inline int emulate_instruction(struct kvm_vcpu
*vcpu
,
1061 return x86_emulate_instruction(vcpu
, 0, emulation_type
, NULL
, 0);
1064 void kvm_enable_efer_bits(u64
);
1065 bool kvm_valid_efer(struct kvm_vcpu
*vcpu
, u64 efer
);
1066 int kvm_get_msr(struct kvm_vcpu
*vcpu
, struct msr_data
*msr
);
1067 int kvm_set_msr(struct kvm_vcpu
*vcpu
, struct msr_data
*msr
);
1069 struct x86_emulate_ctxt
;
1071 int kvm_fast_pio_out(struct kvm_vcpu
*vcpu
, int size
, unsigned short port
);
1072 void kvm_emulate_cpuid(struct kvm_vcpu
*vcpu
);
1073 int kvm_emulate_halt(struct kvm_vcpu
*vcpu
);
1074 int kvm_vcpu_halt(struct kvm_vcpu
*vcpu
);
1075 int kvm_emulate_wbinvd(struct kvm_vcpu
*vcpu
);
1077 void kvm_get_segment(struct kvm_vcpu
*vcpu
, struct kvm_segment
*var
, int seg
);
1078 int kvm_load_segment_descriptor(struct kvm_vcpu
*vcpu
, u16 selector
, int seg
);
1079 void kvm_vcpu_deliver_sipi_vector(struct kvm_vcpu
*vcpu
, u8 vector
);
1081 int kvm_task_switch(struct kvm_vcpu
*vcpu
, u16 tss_selector
, int idt_index
,
1082 int reason
, bool has_error_code
, u32 error_code
);
1084 int kvm_set_cr0(struct kvm_vcpu
*vcpu
, unsigned long cr0
);
1085 int kvm_set_cr3(struct kvm_vcpu
*vcpu
, unsigned long cr3
);
1086 int kvm_set_cr4(struct kvm_vcpu
*vcpu
, unsigned long cr4
);
1087 int kvm_set_cr8(struct kvm_vcpu
*vcpu
, unsigned long cr8
);
1088 int kvm_set_dr(struct kvm_vcpu
*vcpu
, int dr
, unsigned long val
);
1089 int kvm_get_dr(struct kvm_vcpu
*vcpu
, int dr
, unsigned long *val
);
1090 unsigned long kvm_get_cr8(struct kvm_vcpu
*vcpu
);
1091 void kvm_lmsw(struct kvm_vcpu
*vcpu
, unsigned long msw
);
1092 void kvm_get_cs_db_l_bits(struct kvm_vcpu
*vcpu
, int *db
, int *l
);
1093 int kvm_set_xcr(struct kvm_vcpu
*vcpu
, u32 index
, u64 xcr
);
1095 int kvm_get_msr_common(struct kvm_vcpu
*vcpu
, struct msr_data
*msr
);
1096 int kvm_set_msr_common(struct kvm_vcpu
*vcpu
, struct msr_data
*msr
);
1098 unsigned long kvm_get_rflags(struct kvm_vcpu
*vcpu
);
1099 void kvm_set_rflags(struct kvm_vcpu
*vcpu
, unsigned long rflags
);
1100 bool kvm_rdpmc(struct kvm_vcpu
*vcpu
);
1102 void kvm_queue_exception(struct kvm_vcpu
*vcpu
, unsigned nr
);
1103 void kvm_queue_exception_e(struct kvm_vcpu
*vcpu
, unsigned nr
, u32 error_code
);
1104 void kvm_requeue_exception(struct kvm_vcpu
*vcpu
, unsigned nr
);
1105 void kvm_requeue_exception_e(struct kvm_vcpu
*vcpu
, unsigned nr
, u32 error_code
);
1106 void kvm_inject_page_fault(struct kvm_vcpu
*vcpu
, struct x86_exception
*fault
);
1107 int kvm_read_guest_page_mmu(struct kvm_vcpu
*vcpu
, struct kvm_mmu
*mmu
,
1108 gfn_t gfn
, void *data
, int offset
, int len
,
1110 bool kvm_require_cpl(struct kvm_vcpu
*vcpu
, int required_cpl
);
1111 bool kvm_require_dr(struct kvm_vcpu
*vcpu
, int dr
);
1113 static inline int __kvm_irq_line_state(unsigned long *irq_state
,
1114 int irq_source_id
, int level
)
1116 /* Logical OR for level trig interrupt */
1118 __set_bit(irq_source_id
, irq_state
);
1120 __clear_bit(irq_source_id
, irq_state
);
1122 return !!(*irq_state
);
1125 int kvm_pic_set_irq(struct kvm_pic
*pic
, int irq
, int irq_source_id
, int level
);
1126 void kvm_pic_clear_all(struct kvm_pic
*pic
, int irq_source_id
);
1128 void kvm_inject_nmi(struct kvm_vcpu
*vcpu
);
1130 void kvm_mmu_pte_write(struct kvm_vcpu
*vcpu
, gpa_t gpa
,
1131 const u8
*new, int bytes
);
1132 int kvm_mmu_unprotect_page(struct kvm
*kvm
, gfn_t gfn
);
1133 int kvm_mmu_unprotect_page_virt(struct kvm_vcpu
*vcpu
, gva_t gva
);
1134 void __kvm_mmu_free_some_pages(struct kvm_vcpu
*vcpu
);
1135 int kvm_mmu_load(struct kvm_vcpu
*vcpu
);
1136 void kvm_mmu_unload(struct kvm_vcpu
*vcpu
);
1137 void kvm_mmu_sync_roots(struct kvm_vcpu
*vcpu
);
1138 gpa_t
translate_nested_gpa(struct kvm_vcpu
*vcpu
, gpa_t gpa
, u32 access
,
1139 struct x86_exception
*exception
);
1140 gpa_t
kvm_mmu_gva_to_gpa_read(struct kvm_vcpu
*vcpu
, gva_t gva
,
1141 struct x86_exception
*exception
);
1142 gpa_t
kvm_mmu_gva_to_gpa_fetch(struct kvm_vcpu
*vcpu
, gva_t gva
,
1143 struct x86_exception
*exception
);
1144 gpa_t
kvm_mmu_gva_to_gpa_write(struct kvm_vcpu
*vcpu
, gva_t gva
,
1145 struct x86_exception
*exception
);
1146 gpa_t
kvm_mmu_gva_to_gpa_system(struct kvm_vcpu
*vcpu
, gva_t gva
,
1147 struct x86_exception
*exception
);
1149 void kvm_vcpu_deactivate_apicv(struct kvm_vcpu
*vcpu
);
1151 int kvm_emulate_hypercall(struct kvm_vcpu
*vcpu
);
1153 int kvm_mmu_page_fault(struct kvm_vcpu
*vcpu
, gva_t gva
, u32 error_code
,
1154 void *insn
, int insn_len
);
1155 void kvm_mmu_invlpg(struct kvm_vcpu
*vcpu
, gva_t gva
);
1156 void kvm_mmu_new_cr3(struct kvm_vcpu
*vcpu
);
1158 void kvm_enable_tdp(void);
1159 void kvm_disable_tdp(void);
1161 static inline gpa_t
translate_gpa(struct kvm_vcpu
*vcpu
, gpa_t gpa
, u32 access
,
1162 struct x86_exception
*exception
)
1167 static inline struct kvm_mmu_page
*page_header(hpa_t shadow_page
)
1169 struct page
*page
= pfn_to_page(shadow_page
>> PAGE_SHIFT
);
1171 return (struct kvm_mmu_page
*)page_private(page
);
1174 static inline u16
kvm_read_ldt(void)
1177 asm("sldt %0" : "=g"(ldt
));
1181 static inline void kvm_load_ldt(u16 sel
)
1183 asm("lldt %0" : : "rm"(sel
));
1186 #ifdef CONFIG_X86_64
1187 static inline unsigned long read_msr(unsigned long msr
)
1196 static inline u32
get_rdx_init_val(void)
1198 return 0x600; /* P6 family */
1201 static inline void kvm_inject_gp(struct kvm_vcpu
*vcpu
, u32 error_code
)
1203 kvm_queue_exception_e(vcpu
, GP_VECTOR
, error_code
);
1206 static inline u64
get_canonical(u64 la
)
1208 return ((int64_t)la
<< 16) >> 16;
1211 static inline bool is_noncanonical_address(u64 la
)
1213 #ifdef CONFIG_X86_64
1214 return get_canonical(la
) != la
;
1220 #define TSS_IOPB_BASE_OFFSET 0x66
1221 #define TSS_BASE_SIZE 0x68
1222 #define TSS_IOPB_SIZE (65536 / 8)
1223 #define TSS_REDIRECTION_SIZE (256 / 8)
1224 #define RMODE_TSS_SIZE \
1225 (TSS_BASE_SIZE + TSS_REDIRECTION_SIZE + TSS_IOPB_SIZE + 1)
1228 TASK_SWITCH_CALL
= 0,
1229 TASK_SWITCH_IRET
= 1,
1230 TASK_SWITCH_JMP
= 2,
1231 TASK_SWITCH_GATE
= 3,
1234 #define HF_GIF_MASK (1 << 0)
1235 #define HF_HIF_MASK (1 << 1)
1236 #define HF_VINTR_MASK (1 << 2)
1237 #define HF_NMI_MASK (1 << 3)
1238 #define HF_IRET_MASK (1 << 4)
1239 #define HF_GUEST_MASK (1 << 5) /* VCPU is in guest-mode */
1240 #define HF_SMM_MASK (1 << 6)
1241 #define HF_SMM_INSIDE_NMI_MASK (1 << 7)
1243 #define __KVM_VCPU_MULTIPLE_ADDRESS_SPACE
1244 #define KVM_ADDRESS_SPACE_NUM 2
1246 #define kvm_arch_vcpu_memslots_id(vcpu) ((vcpu)->arch.hflags & HF_SMM_MASK ? 1 : 0)
1247 #define kvm_memslots_for_spte_role(kvm, role) __kvm_memslots(kvm, (role).smm)
1250 * Hardware virtualization extension instructions may fault if a
1251 * reboot turns off virtualization while processes are running.
1252 * Trap the fault and ignore the instruction if that happens.
1254 asmlinkage
void kvm_spurious_fault(void);
1256 #define ____kvm_handle_fault_on_reboot(insn, cleanup_insn) \
1257 "666: " insn "\n\t" \
1259 ".pushsection .fixup, \"ax\" \n" \
1261 cleanup_insn "\n\t" \
1262 "cmpb $0, kvm_rebooting \n\t" \
1264 __ASM_SIZE(push) " $666b \n\t" \
1265 "call kvm_spurious_fault \n\t" \
1266 ".popsection \n\t" \
1267 _ASM_EXTABLE(666b, 667b)
1269 #define __kvm_handle_fault_on_reboot(insn) \
1270 ____kvm_handle_fault_on_reboot(insn, "")
1272 #define KVM_ARCH_WANT_MMU_NOTIFIER
1273 int kvm_unmap_hva(struct kvm
*kvm
, unsigned long hva
);
1274 int kvm_unmap_hva_range(struct kvm
*kvm
, unsigned long start
, unsigned long end
);
1275 int kvm_age_hva(struct kvm
*kvm
, unsigned long start
, unsigned long end
);
1276 int kvm_test_age_hva(struct kvm
*kvm
, unsigned long hva
);
1277 void kvm_set_spte_hva(struct kvm
*kvm
, unsigned long hva
, pte_t pte
);
1278 int kvm_cpu_has_injectable_intr(struct kvm_vcpu
*v
);
1279 int kvm_cpu_has_interrupt(struct kvm_vcpu
*vcpu
);
1280 int kvm_arch_interrupt_allowed(struct kvm_vcpu
*vcpu
);
1281 int kvm_cpu_get_interrupt(struct kvm_vcpu
*v
);
1282 void kvm_vcpu_reset(struct kvm_vcpu
*vcpu
, bool init_event
);
1283 void kvm_vcpu_reload_apic_access_page(struct kvm_vcpu
*vcpu
);
1284 void kvm_arch_mmu_notifier_invalidate_page(struct kvm
*kvm
,
1285 unsigned long address
);
1287 void kvm_define_shared_msr(unsigned index
, u32 msr
);
1288 int kvm_set_shared_msr(unsigned index
, u64 val
, u64 mask
);
1290 u64
kvm_scale_tsc(struct kvm_vcpu
*vcpu
, u64 tsc
);
1291 u64
kvm_read_l1_tsc(struct kvm_vcpu
*vcpu
, u64 host_tsc
);
1293 unsigned long kvm_get_linear_rip(struct kvm_vcpu
*vcpu
);
1294 bool kvm_is_linear_rip(struct kvm_vcpu
*vcpu
, unsigned long linear_rip
);
1296 void kvm_make_mclock_inprogress_request(struct kvm
*kvm
);
1297 void kvm_make_scan_ioapic_request(struct kvm
*kvm
);
1299 void kvm_arch_async_page_not_present(struct kvm_vcpu
*vcpu
,
1300 struct kvm_async_pf
*work
);
1301 void kvm_arch_async_page_present(struct kvm_vcpu
*vcpu
,
1302 struct kvm_async_pf
*work
);
1303 void kvm_arch_async_page_ready(struct kvm_vcpu
*vcpu
,
1304 struct kvm_async_pf
*work
);
1305 bool kvm_arch_can_inject_async_page_present(struct kvm_vcpu
*vcpu
);
1306 extern bool kvm_find_async_pf_gfn(struct kvm_vcpu
*vcpu
, gfn_t gfn
);
1308 void kvm_complete_insn_gp(struct kvm_vcpu
*vcpu
, int err
);
1310 int kvm_is_in_guest(void);
1312 int __x86_set_memory_region(struct kvm
*kvm
, int id
, gpa_t gpa
, u32 size
);
1313 int x86_set_memory_region(struct kvm
*kvm
, int id
, gpa_t gpa
, u32 size
);
1314 bool kvm_vcpu_is_reset_bsp(struct kvm_vcpu
*vcpu
);
1315 bool kvm_vcpu_is_bsp(struct kvm_vcpu
*vcpu
);
1317 bool kvm_intr_is_single_vcpu(struct kvm
*kvm
, struct kvm_lapic_irq
*irq
,
1318 struct kvm_vcpu
**dest_vcpu
);
1320 void kvm_set_msi_irq(struct kvm_kernel_irq_routing_entry
*e
,
1321 struct kvm_lapic_irq
*irq
);
1323 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu
*vcpu
) {}
1324 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu
*vcpu
) {}
1326 #endif /* _ASM_X86_KVM_HOST_H */