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>
37 #include <asm/hyperv-tlfs.h>
39 #define KVM_MAX_VCPUS 288
40 #define KVM_SOFT_MAX_VCPUS 240
41 #define KVM_MAX_VCPU_ID 1023
42 #define KVM_USER_MEM_SLOTS 509
43 /* memory slots that are not exposed to userspace */
44 #define KVM_PRIVATE_MEM_SLOTS 3
45 #define KVM_MEM_SLOTS_NUM (KVM_USER_MEM_SLOTS + KVM_PRIVATE_MEM_SLOTS)
47 #define KVM_HALT_POLL_NS_DEFAULT 200000
49 #define KVM_IRQCHIP_NUM_PINS KVM_IOAPIC_NUM_PINS
51 /* x86-specific vcpu->requests bit members */
52 #define KVM_REQ_MIGRATE_TIMER KVM_ARCH_REQ(0)
53 #define KVM_REQ_REPORT_TPR_ACCESS KVM_ARCH_REQ(1)
54 #define KVM_REQ_TRIPLE_FAULT KVM_ARCH_REQ(2)
55 #define KVM_REQ_MMU_SYNC KVM_ARCH_REQ(3)
56 #define KVM_REQ_CLOCK_UPDATE KVM_ARCH_REQ(4)
57 #define KVM_REQ_EVENT KVM_ARCH_REQ(6)
58 #define KVM_REQ_APF_HALT KVM_ARCH_REQ(7)
59 #define KVM_REQ_STEAL_UPDATE KVM_ARCH_REQ(8)
60 #define KVM_REQ_NMI KVM_ARCH_REQ(9)
61 #define KVM_REQ_PMU KVM_ARCH_REQ(10)
62 #define KVM_REQ_PMI KVM_ARCH_REQ(11)
63 #define KVM_REQ_SMI KVM_ARCH_REQ(12)
64 #define KVM_REQ_MASTERCLOCK_UPDATE KVM_ARCH_REQ(13)
65 #define KVM_REQ_MCLOCK_INPROGRESS \
66 KVM_ARCH_REQ_FLAGS(14, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
67 #define KVM_REQ_SCAN_IOAPIC \
68 KVM_ARCH_REQ_FLAGS(15, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
69 #define KVM_REQ_GLOBAL_CLOCK_UPDATE KVM_ARCH_REQ(16)
70 #define KVM_REQ_APIC_PAGE_RELOAD \
71 KVM_ARCH_REQ_FLAGS(17, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
72 #define KVM_REQ_HV_CRASH KVM_ARCH_REQ(18)
73 #define KVM_REQ_IOAPIC_EOI_EXIT KVM_ARCH_REQ(19)
74 #define KVM_REQ_HV_RESET KVM_ARCH_REQ(20)
75 #define KVM_REQ_HV_EXIT KVM_ARCH_REQ(21)
76 #define KVM_REQ_HV_STIMER KVM_ARCH_REQ(22)
77 #define KVM_REQ_LOAD_EOI_EXITMAP KVM_ARCH_REQ(23)
79 #define CR0_RESERVED_BITS \
80 (~(unsigned long)(X86_CR0_PE | X86_CR0_MP | X86_CR0_EM | X86_CR0_TS \
81 | X86_CR0_ET | X86_CR0_NE | X86_CR0_WP | X86_CR0_AM \
82 | X86_CR0_NW | X86_CR0_CD | X86_CR0_PG))
84 #define CR3_PCID_INVD BIT_64(63)
85 #define CR4_RESERVED_BITS \
86 (~(unsigned long)(X86_CR4_VME | X86_CR4_PVI | X86_CR4_TSD | X86_CR4_DE\
87 | X86_CR4_PSE | X86_CR4_PAE | X86_CR4_MCE \
88 | X86_CR4_PGE | X86_CR4_PCE | X86_CR4_OSFXSR | X86_CR4_PCIDE \
89 | X86_CR4_OSXSAVE | X86_CR4_SMEP | X86_CR4_FSGSBASE \
90 | X86_CR4_OSXMMEXCPT | X86_CR4_LA57 | X86_CR4_VMXE \
91 | X86_CR4_SMAP | X86_CR4_PKE | X86_CR4_UMIP))
93 #define CR8_RESERVED_BITS (~(unsigned long)X86_CR8_TPR)
97 #define INVALID_PAGE (~(hpa_t)0)
98 #define VALID_PAGE(x) ((x) != INVALID_PAGE)
100 #define UNMAPPED_GVA (~(gpa_t)0)
102 /* KVM Hugepage definitions for x86 */
103 #define KVM_NR_PAGE_SIZES 3
104 #define KVM_HPAGE_GFN_SHIFT(x) (((x) - 1) * 9)
105 #define KVM_HPAGE_SHIFT(x) (PAGE_SHIFT + KVM_HPAGE_GFN_SHIFT(x))
106 #define KVM_HPAGE_SIZE(x) (1UL << KVM_HPAGE_SHIFT(x))
107 #define KVM_HPAGE_MASK(x) (~(KVM_HPAGE_SIZE(x) - 1))
108 #define KVM_PAGES_PER_HPAGE(x) (KVM_HPAGE_SIZE(x) / PAGE_SIZE)
110 static inline gfn_t
gfn_to_index(gfn_t gfn
, gfn_t base_gfn
, int level
)
112 /* KVM_HPAGE_GFN_SHIFT(PT_PAGE_TABLE_LEVEL) must be 0. */
113 return (gfn
>> KVM_HPAGE_GFN_SHIFT(level
)) -
114 (base_gfn
>> KVM_HPAGE_GFN_SHIFT(level
));
117 #define KVM_PERMILLE_MMU_PAGES 20
118 #define KVM_MIN_ALLOC_MMU_PAGES 64
119 #define KVM_MMU_HASH_SHIFT 12
120 #define KVM_NUM_MMU_PAGES (1 << KVM_MMU_HASH_SHIFT)
121 #define KVM_MIN_FREE_MMU_PAGES 5
122 #define KVM_REFILL_PAGES 25
123 #define KVM_MAX_CPUID_ENTRIES 80
124 #define KVM_NR_FIXED_MTRR_REGION 88
125 #define KVM_NR_VAR_MTRR 8
127 #define ASYNC_PF_PER_VCPU 64
153 VCPU_EXREG_PDPTR
= NR_VCPU_REGS
,
170 #include <asm/kvm_emulate.h>
172 #define KVM_NR_MEM_OBJS 40
174 #define KVM_NR_DB_REGS 4
176 #define DR6_BD (1 << 13)
177 #define DR6_BS (1 << 14)
178 #define DR6_RTM (1 << 16)
179 #define DR6_FIXED_1 0xfffe0ff0
180 #define DR6_INIT 0xffff0ff0
181 #define DR6_VOLATILE 0x0001e00f
183 #define DR7_BP_EN_MASK 0x000000ff
184 #define DR7_GE (1 << 9)
185 #define DR7_GD (1 << 13)
186 #define DR7_FIXED_1 0x00000400
187 #define DR7_VOLATILE 0xffff2bff
189 #define PFERR_PRESENT_BIT 0
190 #define PFERR_WRITE_BIT 1
191 #define PFERR_USER_BIT 2
192 #define PFERR_RSVD_BIT 3
193 #define PFERR_FETCH_BIT 4
194 #define PFERR_PK_BIT 5
195 #define PFERR_GUEST_FINAL_BIT 32
196 #define PFERR_GUEST_PAGE_BIT 33
198 #define PFERR_PRESENT_MASK (1U << PFERR_PRESENT_BIT)
199 #define PFERR_WRITE_MASK (1U << PFERR_WRITE_BIT)
200 #define PFERR_USER_MASK (1U << PFERR_USER_BIT)
201 #define PFERR_RSVD_MASK (1U << PFERR_RSVD_BIT)
202 #define PFERR_FETCH_MASK (1U << PFERR_FETCH_BIT)
203 #define PFERR_PK_MASK (1U << PFERR_PK_BIT)
204 #define PFERR_GUEST_FINAL_MASK (1ULL << PFERR_GUEST_FINAL_BIT)
205 #define PFERR_GUEST_PAGE_MASK (1ULL << PFERR_GUEST_PAGE_BIT)
207 #define PFERR_NESTED_GUEST_PAGE (PFERR_GUEST_PAGE_MASK | \
212 * The mask used to denote special SPTEs, which can be either MMIO SPTEs or
213 * Access Tracking SPTEs. We use bit 62 instead of bit 63 to avoid conflicting
214 * with the SVE bit in EPT PTEs.
216 #define SPTE_SPECIAL_MASK (1ULL << 62)
218 /* apic attention bits */
219 #define KVM_APIC_CHECK_VAPIC 0
221 * The following bit is set with PV-EOI, unset on EOI.
222 * We detect PV-EOI changes by guest by comparing
223 * this bit with PV-EOI in guest memory.
224 * See the implementation in apic_update_pv_eoi.
226 #define KVM_APIC_PV_EOI_PENDING 1
228 struct kvm_kernel_irq_routing_entry
;
231 * We don't want allocation failures within the mmu code, so we preallocate
232 * enough memory for a single page fault in a cache.
234 struct kvm_mmu_memory_cache
{
236 void *objects
[KVM_NR_MEM_OBJS
];
240 * the pages used as guest page table on soft mmu are tracked by
241 * kvm_memory_slot.arch.gfn_track which is 16 bits, so the role bits used
242 * by indirect shadow page can not be more than 15 bits.
244 * Currently, we used 14 bits that are @level, @cr4_pae, @quadrant, @access,
245 * @nxe, @cr0_wp, @smep_andnot_wp and @smap_andnot_wp.
247 union kvm_mmu_page_role
{
258 unsigned smep_andnot_wp
:1;
259 unsigned smap_andnot_wp
:1;
260 unsigned ad_disabled
:1;
264 * This is left at the top of the word so that
265 * kvm_memslots_for_spte_role can extract it with a
266 * simple shift. While there is room, give it a whole
267 * byte so it is also faster to load it from memory.
273 struct kvm_rmap_head
{
277 struct kvm_mmu_page
{
278 struct list_head link
;
279 struct hlist_node hash_link
;
282 * The following two entries are used to key the shadow page in the
286 union kvm_mmu_page_role role
;
289 /* hold the gfn of each spte inside spt */
292 int root_count
; /* Currently serving as active root */
293 unsigned int unsync_children
;
294 struct kvm_rmap_head parent_ptes
; /* rmap pointers to parent sptes */
296 /* The page is obsolete if mmu_valid_gen != kvm->arch.mmu_valid_gen. */
297 unsigned long mmu_valid_gen
;
299 DECLARE_BITMAP(unsync_child_bitmap
, 512);
303 * Used out of the mmu-lock to avoid reading spte values while an
304 * update is in progress; see the comments in __get_spte_lockless().
306 int clear_spte_count
;
309 /* Number of writes since the last time traversal visited this page. */
310 atomic_t write_flooding_count
;
313 struct kvm_pio_request
{
320 #define PT64_ROOT_MAX_LEVEL 5
322 struct rsvd_bits_validate
{
323 u64 rsvd_bits_mask
[2][PT64_ROOT_MAX_LEVEL
];
328 * x86 supports 4 paging modes (5-level 64-bit, 4-level 64-bit, 3-level 32-bit,
329 * and 2-level 32-bit). The kvm_mmu structure abstracts the details of the
333 void (*set_cr3
)(struct kvm_vcpu
*vcpu
, unsigned long root
);
334 unsigned long (*get_cr3
)(struct kvm_vcpu
*vcpu
);
335 u64 (*get_pdptr
)(struct kvm_vcpu
*vcpu
, int index
);
336 int (*page_fault
)(struct kvm_vcpu
*vcpu
, gva_t gva
, u32 err
,
338 void (*inject_page_fault
)(struct kvm_vcpu
*vcpu
,
339 struct x86_exception
*fault
);
340 gpa_t (*gva_to_gpa
)(struct kvm_vcpu
*vcpu
, gva_t gva
, u32 access
,
341 struct x86_exception
*exception
);
342 gpa_t (*translate_gpa
)(struct kvm_vcpu
*vcpu
, gpa_t gpa
, u32 access
,
343 struct x86_exception
*exception
);
344 int (*sync_page
)(struct kvm_vcpu
*vcpu
,
345 struct kvm_mmu_page
*sp
);
346 void (*invlpg
)(struct kvm_vcpu
*vcpu
, gva_t gva
);
347 void (*update_pte
)(struct kvm_vcpu
*vcpu
, struct kvm_mmu_page
*sp
,
348 u64
*spte
, const void *pte
);
350 union kvm_mmu_page_role base_role
;
352 u8 shadow_root_level
;
357 * Bitmap; bit set = permission fault
358 * Byte index: page fault error code [4:1]
359 * Bit index: pte permissions in ACC_* format
364 * The pkru_mask indicates if protection key checks are needed. It
365 * consists of 16 domains indexed by page fault error code bits [4:1],
366 * with PFEC.RSVD replaced by ACC_USER_MASK from the page tables.
367 * Each domain has 2 bits which are ANDed with AD and WD from PKRU.
375 * check zero bits on shadow page table entries, these
376 * bits include not only hardware reserved bits but also
377 * the bits spte never used.
379 struct rsvd_bits_validate shadow_zero_check
;
381 struct rsvd_bits_validate guest_rsvd_check
;
383 /* Can have large pages at levels 2..last_nonleaf_level-1. */
384 u8 last_nonleaf_level
;
388 u64 pdptrs
[4]; /* pae */
401 struct perf_event
*perf_event
;
402 struct kvm_vcpu
*vcpu
;
406 unsigned nr_arch_gp_counters
;
407 unsigned nr_arch_fixed_counters
;
408 unsigned available_event_types
;
413 u64 counter_bitmask
[2];
414 u64 global_ctrl_mask
;
417 struct kvm_pmc gp_counters
[INTEL_PMC_MAX_GENERIC
];
418 struct kvm_pmc fixed_counters
[INTEL_PMC_MAX_FIXED
];
419 struct irq_work irq_work
;
426 KVM_DEBUGREG_BP_ENABLED
= 1,
427 KVM_DEBUGREG_WONT_EXIT
= 2,
428 KVM_DEBUGREG_RELOAD
= 4,
431 struct kvm_mtrr_range
{
434 struct list_head node
;
438 struct kvm_mtrr_range var_ranges
[KVM_NR_VAR_MTRR
];
439 mtrr_type fixed_ranges
[KVM_NR_FIXED_MTRR_REGION
];
442 struct list_head head
;
445 /* Hyper-V SynIC timer */
446 struct kvm_vcpu_hv_stimer
{
447 struct hrtimer timer
;
452 struct hv_message msg
;
456 /* Hyper-V synthetic interrupt controller (SynIC)*/
457 struct kvm_vcpu_hv_synic
{
462 atomic64_t sint
[HV_SYNIC_SINT_COUNT
];
463 atomic_t sint_to_gsi
[HV_SYNIC_SINT_COUNT
];
464 DECLARE_BITMAP(auto_eoi_bitmap
, 256);
465 DECLARE_BITMAP(vec_bitmap
, 256);
467 bool dont_zero_synic_pages
;
470 /* Hyper-V per vcpu emulation context */
475 struct kvm_vcpu_hv_synic synic
;
476 struct kvm_hyperv_exit exit
;
477 struct kvm_vcpu_hv_stimer stimer
[HV_SYNIC_STIMER_COUNT
];
478 DECLARE_BITMAP(stimer_pending_bitmap
, HV_SYNIC_STIMER_COUNT
);
481 struct kvm_vcpu_arch
{
483 * rip and regs accesses must go through
484 * kvm_{register,rip}_{read,write} functions.
486 unsigned long regs
[NR_VCPU_REGS
];
491 unsigned long cr0_guest_owned_bits
;
495 unsigned long cr4_guest_owned_bits
;
501 struct kvm_lapic
*apic
; /* kernel irqchip context */
503 bool load_eoi_exitmap_pending
;
504 DECLARE_BITMAP(ioapic_handled_vectors
, 256);
505 unsigned long apic_attention
;
506 int32_t apic_arb_prio
;
508 u64 ia32_misc_enable_msr
;
511 bool tpr_access_reporting
;
513 u64 microcode_version
;
516 * Paging state of the vcpu
518 * If the vcpu runs in guest mode with two level paging this still saves
519 * the paging mode of the l1 guest. This context is always used to
525 * Paging state of an L2 guest (used for nested npt)
527 * This context will save all necessary information to walk page tables
528 * of the an L2 guest. This context is only initialized for page table
529 * walking and not for faulting since we never handle l2 page faults on
532 struct kvm_mmu nested_mmu
;
535 * Pointer to the mmu context currently used for
536 * gva_to_gpa translations.
538 struct kvm_mmu
*walk_mmu
;
540 struct kvm_mmu_memory_cache mmu_pte_list_desc_cache
;
541 struct kvm_mmu_memory_cache mmu_page_cache
;
542 struct kvm_mmu_memory_cache mmu_page_header_cache
;
545 * QEMU userspace and the guest each have their own FPU state.
546 * In vcpu_run, we switch between the user and guest FPU contexts.
547 * While running a VCPU, the VCPU thread will have the guest FPU
550 * Note that while the PKRU state lives inside the fpu registers,
551 * it is switched out separately at VMENTER and VMEXIT time. The
552 * "guest_fpu" state here contains the guest FPU context, with the
556 struct fpu guest_fpu
;
559 u64 guest_supported_xcr0
;
560 u32 guest_xstate_size
;
562 struct kvm_pio_request pio
;
565 u8 event_exit_inst_len
;
567 struct kvm_queued_exception
{
576 struct kvm_queued_interrupt
{
582 int halt_request
; /* real mode on Intel only */
585 struct kvm_cpuid_entry2 cpuid_entries
[KVM_MAX_CPUID_ENTRIES
];
589 /* emulate context */
591 struct x86_emulate_ctxt emulate_ctxt
;
592 bool emulate_regs_need_sync_to_vcpu
;
593 bool emulate_regs_need_sync_from_vcpu
;
594 int (*complete_userspace_io
)(struct kvm_vcpu
*vcpu
);
597 struct pvclock_vcpu_time_info hv_clock
;
598 unsigned int hw_tsc_khz
;
599 struct gfn_to_hva_cache pv_time
;
600 bool pv_time_enabled
;
601 /* set guest stopped flag in pvclock flags field */
602 bool pvclock_set_guest_stopped_request
;
607 struct gfn_to_hva_cache stime
;
608 struct kvm_steal_time steal
;
614 u64 tsc_offset_adjustment
;
617 u64 this_tsc_generation
;
619 bool tsc_always_catchup
;
620 s8 virtual_tsc_shift
;
621 u32 virtual_tsc_mult
;
623 s64 ia32_tsc_adjust_msr
;
624 u64 tsc_scaling_ratio
;
626 atomic_t nmi_queued
; /* unprocessed asynchronous NMIs */
627 unsigned nmi_pending
; /* NMI queued after currently running handler */
628 bool nmi_injected
; /* Trying to inject an NMI this entry */
629 bool smi_pending
; /* SMI queued after currently running handler */
631 struct kvm_mtrr mtrr_state
;
634 unsigned switch_db_regs
;
635 unsigned long db
[KVM_NR_DB_REGS
];
638 unsigned long eff_db
[KVM_NR_DB_REGS
];
639 unsigned long guest_debug_dr7
;
640 u64 msr_platform_info
;
641 u64 msr_misc_features_enables
;
649 /* Cache MMIO info */
657 /* used for guest single stepping over the given code position */
658 unsigned long singlestep_rip
;
660 struct kvm_vcpu_hv hyperv
;
662 cpumask_var_t wbinvd_dirty_mask
;
664 unsigned long last_retry_eip
;
665 unsigned long last_retry_addr
;
669 gfn_t gfns
[roundup_pow_of_two(ASYNC_PF_PER_VCPU
)];
670 struct gfn_to_hva_cache data
;
675 unsigned long nested_apf_token
;
676 bool delivery_as_pf_vmexit
;
679 /* OSVW MSRs (AMD only) */
687 struct gfn_to_hva_cache data
;
691 * Indicate whether the access faults on its page table in guest
692 * which is set when fix page fault and used to detect unhandeable
695 bool write_fault_to_shadow_pgtable
;
697 /* set at EPT violation at this point */
698 unsigned long exit_qualification
;
700 /* pv related host specific info */
705 int pending_ioapic_eoi
;
706 int pending_external_vector
;
712 /* be preempted when it's in kernel-mode(cpl=0) */
713 bool preempted_in_kernel
;
716 struct kvm_lpage_info
{
720 struct kvm_arch_memory_slot
{
721 struct kvm_rmap_head
*rmap
[KVM_NR_PAGE_SIZES
];
722 struct kvm_lpage_info
*lpage_info
[KVM_NR_PAGE_SIZES
- 1];
723 unsigned short *gfn_track
[KVM_PAGE_TRACK_MAX
];
727 * We use as the mode the number of bits allocated in the LDR for the
728 * logical processor ID. It happens that these are all powers of two.
729 * This makes it is very easy to detect cases where the APICs are
730 * configured for multiple modes; in that case, we cannot use the map and
731 * hence cannot use kvm_irq_delivery_to_apic_fast either.
733 #define KVM_APIC_MODE_XAPIC_CLUSTER 4
734 #define KVM_APIC_MODE_XAPIC_FLAT 8
735 #define KVM_APIC_MODE_X2APIC 16
737 struct kvm_apic_map
{
742 struct kvm_lapic
*xapic_flat_map
[8];
743 struct kvm_lapic
*xapic_cluster_map
[16][4];
745 struct kvm_lapic
*phys_map
[];
748 /* Hyper-V emulation context */
750 struct mutex hv_lock
;
755 /* Hyper-v based guest crash (NT kernel bugcheck) parameters */
756 u64 hv_crash_param
[HV_X64_MSR_CRASH_PARAMS
];
759 HV_REFERENCE_TSC_PAGE tsc_ref
;
761 struct idr conn_to_evt
;
763 u64 hv_reenlightenment_control
;
764 u64 hv_tsc_emulation_control
;
765 u64 hv_tsc_emulation_status
;
768 enum kvm_irqchip_mode
{
770 KVM_IRQCHIP_KERNEL
, /* created with KVM_CREATE_IRQCHIP */
771 KVM_IRQCHIP_SPLIT
, /* created with KVM_CAP_SPLIT_IRQCHIP */
775 unsigned int n_used_mmu_pages
;
776 unsigned int n_requested_mmu_pages
;
777 unsigned int n_max_mmu_pages
;
778 unsigned int indirect_shadow_pages
;
779 unsigned long mmu_valid_gen
;
780 struct hlist_head mmu_page_hash
[KVM_NUM_MMU_PAGES
];
782 * Hash table of struct kvm_mmu_page.
784 struct list_head active_mmu_pages
;
785 struct list_head zapped_obsolete_pages
;
786 struct kvm_page_track_notifier_node mmu_sp_tracker
;
787 struct kvm_page_track_notifier_head track_notifier_head
;
789 struct list_head assigned_dev_head
;
790 struct iommu_domain
*iommu_domain
;
791 bool iommu_noncoherent
;
792 #define __KVM_HAVE_ARCH_NONCOHERENT_DMA
793 atomic_t noncoherent_dma_count
;
794 #define __KVM_HAVE_ARCH_ASSIGNED_DEVICE
795 atomic_t assigned_device_count
;
796 struct kvm_pic
*vpic
;
797 struct kvm_ioapic
*vioapic
;
798 struct kvm_pit
*vpit
;
799 atomic_t vapics_in_nmi_mode
;
800 struct mutex apic_map_lock
;
801 struct kvm_apic_map
*apic_map
;
803 bool apic_access_page_done
;
811 unsigned long irq_sources_bitmap
;
813 raw_spinlock_t tsc_write_lock
;
820 u64 cur_tsc_generation
;
821 int nr_vcpus_matched_tsc
;
823 spinlock_t pvclock_gtod_sync_lock
;
824 bool use_master_clock
;
825 u64 master_kernel_ns
;
826 u64 master_cycle_now
;
827 struct delayed_work kvmclock_update_work
;
828 struct delayed_work kvmclock_sync_work
;
830 struct kvm_xen_hvm_config xen_hvm_config
;
832 /* reads protected by irq_srcu, writes by irq_lock */
833 struct hlist_head mask_notifier_list
;
835 struct kvm_hv hyperv
;
837 #ifdef CONFIG_KVM_MMU_AUDIT
841 bool backwards_tsc_observed
;
842 bool boot_vcpu_runs_old_kvmclock
;
847 enum kvm_irqchip_mode irqchip_mode
;
848 u8 nr_reserved_ioapic_pins
;
850 bool disabled_lapic_found
;
853 bool x2apic_broadcast_quirk_disabled
;
857 ulong mmu_shadow_zapped
;
859 ulong mmu_pte_updated
;
860 ulong mmu_pde_zapped
;
863 ulong mmu_cache_miss
;
865 ulong remote_tlb_flush
;
867 ulong max_mmu_page_hash_collisions
;
870 struct kvm_vcpu_stat
{
880 u64 irq_window_exits
;
881 u64 nmi_window_exits
;
883 u64 halt_successful_poll
;
884 u64 halt_attempted_poll
;
885 u64 halt_poll_invalid
;
887 u64 request_irq_exits
;
889 u64 host_state_reload
;
892 u64 insn_emulation_fail
;
899 struct x86_instruction_info
;
907 struct kvm_lapic_irq
{
919 int (*cpu_has_kvm_support
)(void); /* __init */
920 int (*disabled_by_bios
)(void); /* __init */
921 int (*hardware_enable
)(void);
922 void (*hardware_disable
)(void);
923 void (*check_processor_compatibility
)(void *rtn
);
924 int (*hardware_setup
)(void); /* __init */
925 void (*hardware_unsetup
)(void); /* __exit */
926 bool (*cpu_has_accelerated_tpr
)(void);
927 bool (*cpu_has_high_real_mode_segbase
)(void);
928 void (*cpuid_update
)(struct kvm_vcpu
*vcpu
);
930 struct kvm
*(*vm_alloc
)(void);
931 void (*vm_free
)(struct kvm
*);
932 int (*vm_init
)(struct kvm
*kvm
);
933 void (*vm_destroy
)(struct kvm
*kvm
);
935 /* Create, but do not attach this VCPU */
936 struct kvm_vcpu
*(*vcpu_create
)(struct kvm
*kvm
, unsigned id
);
937 void (*vcpu_free
)(struct kvm_vcpu
*vcpu
);
938 void (*vcpu_reset
)(struct kvm_vcpu
*vcpu
, bool init_event
);
940 void (*prepare_guest_switch
)(struct kvm_vcpu
*vcpu
);
941 void (*vcpu_load
)(struct kvm_vcpu
*vcpu
, int cpu
);
942 void (*vcpu_put
)(struct kvm_vcpu
*vcpu
);
944 void (*update_bp_intercept
)(struct kvm_vcpu
*vcpu
);
945 int (*get_msr
)(struct kvm_vcpu
*vcpu
, struct msr_data
*msr
);
946 int (*set_msr
)(struct kvm_vcpu
*vcpu
, struct msr_data
*msr
);
947 u64 (*get_segment_base
)(struct kvm_vcpu
*vcpu
, int seg
);
948 void (*get_segment
)(struct kvm_vcpu
*vcpu
,
949 struct kvm_segment
*var
, int seg
);
950 int (*get_cpl
)(struct kvm_vcpu
*vcpu
);
951 void (*set_segment
)(struct kvm_vcpu
*vcpu
,
952 struct kvm_segment
*var
, int seg
);
953 void (*get_cs_db_l_bits
)(struct kvm_vcpu
*vcpu
, int *db
, int *l
);
954 void (*decache_cr0_guest_bits
)(struct kvm_vcpu
*vcpu
);
955 void (*decache_cr3
)(struct kvm_vcpu
*vcpu
);
956 void (*decache_cr4_guest_bits
)(struct kvm_vcpu
*vcpu
);
957 void (*set_cr0
)(struct kvm_vcpu
*vcpu
, unsigned long cr0
);
958 void (*set_cr3
)(struct kvm_vcpu
*vcpu
, unsigned long cr3
);
959 int (*set_cr4
)(struct kvm_vcpu
*vcpu
, unsigned long cr4
);
960 void (*set_efer
)(struct kvm_vcpu
*vcpu
, u64 efer
);
961 void (*get_idt
)(struct kvm_vcpu
*vcpu
, struct desc_ptr
*dt
);
962 void (*set_idt
)(struct kvm_vcpu
*vcpu
, struct desc_ptr
*dt
);
963 void (*get_gdt
)(struct kvm_vcpu
*vcpu
, struct desc_ptr
*dt
);
964 void (*set_gdt
)(struct kvm_vcpu
*vcpu
, struct desc_ptr
*dt
);
965 u64 (*get_dr6
)(struct kvm_vcpu
*vcpu
);
966 void (*set_dr6
)(struct kvm_vcpu
*vcpu
, unsigned long value
);
967 void (*sync_dirty_debug_regs
)(struct kvm_vcpu
*vcpu
);
968 void (*set_dr7
)(struct kvm_vcpu
*vcpu
, unsigned long value
);
969 void (*cache_reg
)(struct kvm_vcpu
*vcpu
, enum kvm_reg reg
);
970 unsigned long (*get_rflags
)(struct kvm_vcpu
*vcpu
);
971 void (*set_rflags
)(struct kvm_vcpu
*vcpu
, unsigned long rflags
);
973 void (*tlb_flush
)(struct kvm_vcpu
*vcpu
, bool invalidate_gpa
);
975 void (*run
)(struct kvm_vcpu
*vcpu
);
976 int (*handle_exit
)(struct kvm_vcpu
*vcpu
);
977 void (*skip_emulated_instruction
)(struct kvm_vcpu
*vcpu
);
978 void (*set_interrupt_shadow
)(struct kvm_vcpu
*vcpu
, int mask
);
979 u32 (*get_interrupt_shadow
)(struct kvm_vcpu
*vcpu
);
980 void (*patch_hypercall
)(struct kvm_vcpu
*vcpu
,
981 unsigned char *hypercall_addr
);
982 void (*set_irq
)(struct kvm_vcpu
*vcpu
);
983 void (*set_nmi
)(struct kvm_vcpu
*vcpu
);
984 void (*queue_exception
)(struct kvm_vcpu
*vcpu
);
985 void (*cancel_injection
)(struct kvm_vcpu
*vcpu
);
986 int (*interrupt_allowed
)(struct kvm_vcpu
*vcpu
);
987 int (*nmi_allowed
)(struct kvm_vcpu
*vcpu
);
988 bool (*get_nmi_mask
)(struct kvm_vcpu
*vcpu
);
989 void (*set_nmi_mask
)(struct kvm_vcpu
*vcpu
, bool masked
);
990 void (*enable_nmi_window
)(struct kvm_vcpu
*vcpu
);
991 void (*enable_irq_window
)(struct kvm_vcpu
*vcpu
);
992 void (*update_cr8_intercept
)(struct kvm_vcpu
*vcpu
, int tpr
, int irr
);
993 bool (*get_enable_apicv
)(struct kvm_vcpu
*vcpu
);
994 void (*refresh_apicv_exec_ctrl
)(struct kvm_vcpu
*vcpu
);
995 void (*hwapic_irr_update
)(struct kvm_vcpu
*vcpu
, int max_irr
);
996 void (*hwapic_isr_update
)(struct kvm_vcpu
*vcpu
, int isr
);
997 void (*load_eoi_exitmap
)(struct kvm_vcpu
*vcpu
, u64
*eoi_exit_bitmap
);
998 void (*set_virtual_x2apic_mode
)(struct kvm_vcpu
*vcpu
, bool set
);
999 void (*set_apic_access_page_addr
)(struct kvm_vcpu
*vcpu
, hpa_t hpa
);
1000 void (*deliver_posted_interrupt
)(struct kvm_vcpu
*vcpu
, int vector
);
1001 int (*sync_pir_to_irr
)(struct kvm_vcpu
*vcpu
);
1002 int (*set_tss_addr
)(struct kvm
*kvm
, unsigned int addr
);
1003 int (*set_identity_map_addr
)(struct kvm
*kvm
, u64 ident_addr
);
1004 int (*get_tdp_level
)(struct kvm_vcpu
*vcpu
);
1005 u64 (*get_mt_mask
)(struct kvm_vcpu
*vcpu
, gfn_t gfn
, bool is_mmio
);
1006 int (*get_lpage_level
)(void);
1007 bool (*rdtscp_supported
)(void);
1008 bool (*invpcid_supported
)(void);
1010 void (*set_tdp_cr3
)(struct kvm_vcpu
*vcpu
, unsigned long cr3
);
1012 void (*set_supported_cpuid
)(u32 func
, struct kvm_cpuid_entry2
*entry
);
1014 bool (*has_wbinvd_exit
)(void);
1016 void (*write_tsc_offset
)(struct kvm_vcpu
*vcpu
, u64 offset
);
1018 void (*get_exit_info
)(struct kvm_vcpu
*vcpu
, u64
*info1
, u64
*info2
);
1020 int (*check_intercept
)(struct kvm_vcpu
*vcpu
,
1021 struct x86_instruction_info
*info
,
1022 enum x86_intercept_stage stage
);
1023 void (*handle_external_intr
)(struct kvm_vcpu
*vcpu
);
1024 bool (*mpx_supported
)(void);
1025 bool (*xsaves_supported
)(void);
1026 bool (*umip_emulated
)(void);
1028 int (*check_nested_events
)(struct kvm_vcpu
*vcpu
, bool external_intr
);
1030 void (*sched_in
)(struct kvm_vcpu
*kvm
, int cpu
);
1033 * Arch-specific dirty logging hooks. These hooks are only supposed to
1034 * be valid if the specific arch has hardware-accelerated dirty logging
1035 * mechanism. Currently only for PML on VMX.
1037 * - slot_enable_log_dirty:
1038 * called when enabling log dirty mode for the slot.
1039 * - slot_disable_log_dirty:
1040 * called when disabling log dirty mode for the slot.
1041 * also called when slot is created with log dirty disabled.
1042 * - flush_log_dirty:
1043 * called before reporting dirty_bitmap to userspace.
1044 * - enable_log_dirty_pt_masked:
1045 * called when reenabling log dirty for the GFNs in the mask after
1046 * corresponding bits are cleared in slot->dirty_bitmap.
1048 void (*slot_enable_log_dirty
)(struct kvm
*kvm
,
1049 struct kvm_memory_slot
*slot
);
1050 void (*slot_disable_log_dirty
)(struct kvm
*kvm
,
1051 struct kvm_memory_slot
*slot
);
1052 void (*flush_log_dirty
)(struct kvm
*kvm
);
1053 void (*enable_log_dirty_pt_masked
)(struct kvm
*kvm
,
1054 struct kvm_memory_slot
*slot
,
1055 gfn_t offset
, unsigned long mask
);
1056 int (*write_log_dirty
)(struct kvm_vcpu
*vcpu
);
1058 /* pmu operations of sub-arch */
1059 const struct kvm_pmu_ops
*pmu_ops
;
1062 * Architecture specific hooks for vCPU blocking due to
1064 * Returns for .pre_block():
1065 * - 0 means continue to block the vCPU.
1066 * - 1 means we cannot block the vCPU since some event
1067 * happens during this period, such as, 'ON' bit in
1068 * posted-interrupts descriptor is set.
1070 int (*pre_block
)(struct kvm_vcpu
*vcpu
);
1071 void (*post_block
)(struct kvm_vcpu
*vcpu
);
1073 void (*vcpu_blocking
)(struct kvm_vcpu
*vcpu
);
1074 void (*vcpu_unblocking
)(struct kvm_vcpu
*vcpu
);
1076 int (*update_pi_irte
)(struct kvm
*kvm
, unsigned int host_irq
,
1077 uint32_t guest_irq
, bool set
);
1078 void (*apicv_post_state_restore
)(struct kvm_vcpu
*vcpu
);
1080 int (*set_hv_timer
)(struct kvm_vcpu
*vcpu
, u64 guest_deadline_tsc
);
1081 void (*cancel_hv_timer
)(struct kvm_vcpu
*vcpu
);
1083 void (*setup_mce
)(struct kvm_vcpu
*vcpu
);
1085 int (*smi_allowed
)(struct kvm_vcpu
*vcpu
);
1086 int (*pre_enter_smm
)(struct kvm_vcpu
*vcpu
, char *smstate
);
1087 int (*pre_leave_smm
)(struct kvm_vcpu
*vcpu
, u64 smbase
);
1088 int (*enable_smi_window
)(struct kvm_vcpu
*vcpu
);
1090 int (*mem_enc_op
)(struct kvm
*kvm
, void __user
*argp
);
1091 int (*mem_enc_reg_region
)(struct kvm
*kvm
, struct kvm_enc_region
*argp
);
1092 int (*mem_enc_unreg_region
)(struct kvm
*kvm
, struct kvm_enc_region
*argp
);
1094 int (*get_msr_feature
)(struct kvm_msr_entry
*entry
);
1097 struct kvm_arch_async_pf
{
1104 extern struct kvm_x86_ops
*kvm_x86_ops
;
1106 #define __KVM_HAVE_ARCH_VM_ALLOC
1107 static inline struct kvm
*kvm_arch_alloc_vm(void)
1109 return kvm_x86_ops
->vm_alloc();
1112 static inline void kvm_arch_free_vm(struct kvm
*kvm
)
1114 return kvm_x86_ops
->vm_free(kvm
);
1117 int kvm_mmu_module_init(void);
1118 void kvm_mmu_module_exit(void);
1120 void kvm_mmu_destroy(struct kvm_vcpu
*vcpu
);
1121 int kvm_mmu_create(struct kvm_vcpu
*vcpu
);
1122 void kvm_mmu_setup(struct kvm_vcpu
*vcpu
);
1123 void kvm_mmu_init_vm(struct kvm
*kvm
);
1124 void kvm_mmu_uninit_vm(struct kvm
*kvm
);
1125 void kvm_mmu_set_mask_ptes(u64 user_mask
, u64 accessed_mask
,
1126 u64 dirty_mask
, u64 nx_mask
, u64 x_mask
, u64 p_mask
,
1127 u64 acc_track_mask
, u64 me_mask
);
1129 void kvm_mmu_reset_context(struct kvm_vcpu
*vcpu
);
1130 void kvm_mmu_slot_remove_write_access(struct kvm
*kvm
,
1131 struct kvm_memory_slot
*memslot
);
1132 void kvm_mmu_zap_collapsible_sptes(struct kvm
*kvm
,
1133 const struct kvm_memory_slot
*memslot
);
1134 void kvm_mmu_slot_leaf_clear_dirty(struct kvm
*kvm
,
1135 struct kvm_memory_slot
*memslot
);
1136 void kvm_mmu_slot_largepage_remove_write_access(struct kvm
*kvm
,
1137 struct kvm_memory_slot
*memslot
);
1138 void kvm_mmu_slot_set_dirty(struct kvm
*kvm
,
1139 struct kvm_memory_slot
*memslot
);
1140 void kvm_mmu_clear_dirty_pt_masked(struct kvm
*kvm
,
1141 struct kvm_memory_slot
*slot
,
1142 gfn_t gfn_offset
, unsigned long mask
);
1143 void kvm_mmu_zap_all(struct kvm
*kvm
);
1144 void kvm_mmu_invalidate_mmio_sptes(struct kvm
*kvm
, struct kvm_memslots
*slots
);
1145 unsigned int kvm_mmu_calculate_mmu_pages(struct kvm
*kvm
);
1146 void kvm_mmu_change_mmu_pages(struct kvm
*kvm
, unsigned int kvm_nr_mmu_pages
);
1148 int load_pdptrs(struct kvm_vcpu
*vcpu
, struct kvm_mmu
*mmu
, unsigned long cr3
);
1149 bool pdptrs_changed(struct kvm_vcpu
*vcpu
);
1151 int emulator_write_phys(struct kvm_vcpu
*vcpu
, gpa_t gpa
,
1152 const void *val
, int bytes
);
1154 struct kvm_irq_mask_notifier
{
1155 void (*func
)(struct kvm_irq_mask_notifier
*kimn
, bool masked
);
1157 struct hlist_node link
;
1160 void kvm_register_irq_mask_notifier(struct kvm
*kvm
, int irq
,
1161 struct kvm_irq_mask_notifier
*kimn
);
1162 void kvm_unregister_irq_mask_notifier(struct kvm
*kvm
, int irq
,
1163 struct kvm_irq_mask_notifier
*kimn
);
1164 void kvm_fire_mask_notifiers(struct kvm
*kvm
, unsigned irqchip
, unsigned pin
,
1167 extern bool tdp_enabled
;
1169 u64
vcpu_tsc_khz(struct kvm_vcpu
*vcpu
);
1171 /* control of guest tsc rate supported? */
1172 extern bool kvm_has_tsc_control
;
1173 /* maximum supported tsc_khz for guests */
1174 extern u32 kvm_max_guest_tsc_khz
;
1175 /* number of bits of the fractional part of the TSC scaling ratio */
1176 extern u8 kvm_tsc_scaling_ratio_frac_bits
;
1177 /* maximum allowed value of TSC scaling ratio */
1178 extern u64 kvm_max_tsc_scaling_ratio
;
1179 /* 1ull << kvm_tsc_scaling_ratio_frac_bits */
1180 extern u64 kvm_default_tsc_scaling_ratio
;
1182 extern u64 kvm_mce_cap_supported
;
1184 enum emulation_result
{
1185 EMULATE_DONE
, /* no further processing */
1186 EMULATE_USER_EXIT
, /* kvm_run ready for userspace exit */
1187 EMULATE_FAIL
, /* can't emulate this instruction */
1190 #define EMULTYPE_NO_DECODE (1 << 0)
1191 #define EMULTYPE_TRAP_UD (1 << 1)
1192 #define EMULTYPE_SKIP (1 << 2)
1193 #define EMULTYPE_RETRY (1 << 3)
1194 #define EMULTYPE_NO_REEXECUTE (1 << 4)
1195 #define EMULTYPE_NO_UD_ON_FAIL (1 << 5)
1196 #define EMULTYPE_VMWARE (1 << 6)
1197 int x86_emulate_instruction(struct kvm_vcpu
*vcpu
, unsigned long cr2
,
1198 int emulation_type
, void *insn
, int insn_len
);
1200 static inline int emulate_instruction(struct kvm_vcpu
*vcpu
,
1203 return x86_emulate_instruction(vcpu
, 0,
1204 emulation_type
| EMULTYPE_NO_REEXECUTE
, NULL
, 0);
1207 void kvm_enable_efer_bits(u64
);
1208 bool kvm_valid_efer(struct kvm_vcpu
*vcpu
, u64 efer
);
1209 int kvm_get_msr(struct kvm_vcpu
*vcpu
, struct msr_data
*msr
);
1210 int kvm_set_msr(struct kvm_vcpu
*vcpu
, struct msr_data
*msr
);
1212 struct x86_emulate_ctxt
;
1214 int kvm_fast_pio(struct kvm_vcpu
*vcpu
, int size
, unsigned short port
, int in
);
1215 int kvm_emulate_cpuid(struct kvm_vcpu
*vcpu
);
1216 int kvm_emulate_halt(struct kvm_vcpu
*vcpu
);
1217 int kvm_vcpu_halt(struct kvm_vcpu
*vcpu
);
1218 int kvm_emulate_wbinvd(struct kvm_vcpu
*vcpu
);
1220 void kvm_get_segment(struct kvm_vcpu
*vcpu
, struct kvm_segment
*var
, int seg
);
1221 int kvm_load_segment_descriptor(struct kvm_vcpu
*vcpu
, u16 selector
, int seg
);
1222 void kvm_vcpu_deliver_sipi_vector(struct kvm_vcpu
*vcpu
, u8 vector
);
1224 int kvm_task_switch(struct kvm_vcpu
*vcpu
, u16 tss_selector
, int idt_index
,
1225 int reason
, bool has_error_code
, u32 error_code
);
1227 int kvm_set_cr0(struct kvm_vcpu
*vcpu
, unsigned long cr0
);
1228 int kvm_set_cr3(struct kvm_vcpu
*vcpu
, unsigned long cr3
);
1229 int kvm_set_cr4(struct kvm_vcpu
*vcpu
, unsigned long cr4
);
1230 int kvm_set_cr8(struct kvm_vcpu
*vcpu
, unsigned long cr8
);
1231 int kvm_set_dr(struct kvm_vcpu
*vcpu
, int dr
, unsigned long val
);
1232 int kvm_get_dr(struct kvm_vcpu
*vcpu
, int dr
, unsigned long *val
);
1233 unsigned long kvm_get_cr8(struct kvm_vcpu
*vcpu
);
1234 void kvm_lmsw(struct kvm_vcpu
*vcpu
, unsigned long msw
);
1235 void kvm_get_cs_db_l_bits(struct kvm_vcpu
*vcpu
, int *db
, int *l
);
1236 int kvm_set_xcr(struct kvm_vcpu
*vcpu
, u32 index
, u64 xcr
);
1238 int kvm_get_msr_common(struct kvm_vcpu
*vcpu
, struct msr_data
*msr
);
1239 int kvm_set_msr_common(struct kvm_vcpu
*vcpu
, struct msr_data
*msr
);
1241 unsigned long kvm_get_rflags(struct kvm_vcpu
*vcpu
);
1242 void kvm_set_rflags(struct kvm_vcpu
*vcpu
, unsigned long rflags
);
1243 bool kvm_rdpmc(struct kvm_vcpu
*vcpu
);
1245 void kvm_queue_exception(struct kvm_vcpu
*vcpu
, unsigned nr
);
1246 void kvm_queue_exception_e(struct kvm_vcpu
*vcpu
, unsigned nr
, u32 error_code
);
1247 void kvm_requeue_exception(struct kvm_vcpu
*vcpu
, unsigned nr
);
1248 void kvm_requeue_exception_e(struct kvm_vcpu
*vcpu
, unsigned nr
, u32 error_code
);
1249 void kvm_inject_page_fault(struct kvm_vcpu
*vcpu
, struct x86_exception
*fault
);
1250 int kvm_read_guest_page_mmu(struct kvm_vcpu
*vcpu
, struct kvm_mmu
*mmu
,
1251 gfn_t gfn
, void *data
, int offset
, int len
,
1253 bool kvm_require_cpl(struct kvm_vcpu
*vcpu
, int required_cpl
);
1254 bool kvm_require_dr(struct kvm_vcpu
*vcpu
, int dr
);
1256 static inline int __kvm_irq_line_state(unsigned long *irq_state
,
1257 int irq_source_id
, int level
)
1259 /* Logical OR for level trig interrupt */
1261 __set_bit(irq_source_id
, irq_state
);
1263 __clear_bit(irq_source_id
, irq_state
);
1265 return !!(*irq_state
);
1268 int kvm_pic_set_irq(struct kvm_pic
*pic
, int irq
, int irq_source_id
, int level
);
1269 void kvm_pic_clear_all(struct kvm_pic
*pic
, int irq_source_id
);
1271 void kvm_inject_nmi(struct kvm_vcpu
*vcpu
);
1273 int kvm_mmu_unprotect_page(struct kvm
*kvm
, gfn_t gfn
);
1274 int kvm_mmu_unprotect_page_virt(struct kvm_vcpu
*vcpu
, gva_t gva
);
1275 void __kvm_mmu_free_some_pages(struct kvm_vcpu
*vcpu
);
1276 int kvm_mmu_load(struct kvm_vcpu
*vcpu
);
1277 void kvm_mmu_unload(struct kvm_vcpu
*vcpu
);
1278 void kvm_mmu_sync_roots(struct kvm_vcpu
*vcpu
);
1279 gpa_t
translate_nested_gpa(struct kvm_vcpu
*vcpu
, gpa_t gpa
, u32 access
,
1280 struct x86_exception
*exception
);
1281 gpa_t
kvm_mmu_gva_to_gpa_read(struct kvm_vcpu
*vcpu
, gva_t gva
,
1282 struct x86_exception
*exception
);
1283 gpa_t
kvm_mmu_gva_to_gpa_fetch(struct kvm_vcpu
*vcpu
, gva_t gva
,
1284 struct x86_exception
*exception
);
1285 gpa_t
kvm_mmu_gva_to_gpa_write(struct kvm_vcpu
*vcpu
, gva_t gva
,
1286 struct x86_exception
*exception
);
1287 gpa_t
kvm_mmu_gva_to_gpa_system(struct kvm_vcpu
*vcpu
, gva_t gva
,
1288 struct x86_exception
*exception
);
1290 void kvm_vcpu_deactivate_apicv(struct kvm_vcpu
*vcpu
);
1292 int kvm_emulate_hypercall(struct kvm_vcpu
*vcpu
);
1294 int kvm_mmu_page_fault(struct kvm_vcpu
*vcpu
, gva_t gva
, u64 error_code
,
1295 void *insn
, int insn_len
);
1296 void kvm_mmu_invlpg(struct kvm_vcpu
*vcpu
, gva_t gva
);
1297 void kvm_mmu_new_cr3(struct kvm_vcpu
*vcpu
);
1299 void kvm_enable_tdp(void);
1300 void kvm_disable_tdp(void);
1302 static inline gpa_t
translate_gpa(struct kvm_vcpu
*vcpu
, gpa_t gpa
, u32 access
,
1303 struct x86_exception
*exception
)
1308 static inline struct kvm_mmu_page
*page_header(hpa_t shadow_page
)
1310 struct page
*page
= pfn_to_page(shadow_page
>> PAGE_SHIFT
);
1312 return (struct kvm_mmu_page
*)page_private(page
);
1315 static inline u16
kvm_read_ldt(void)
1318 asm("sldt %0" : "=g"(ldt
));
1322 static inline void kvm_load_ldt(u16 sel
)
1324 asm("lldt %0" : : "rm"(sel
));
1327 #ifdef CONFIG_X86_64
1328 static inline unsigned long read_msr(unsigned long msr
)
1337 static inline u32
get_rdx_init_val(void)
1339 return 0x600; /* P6 family */
1342 static inline void kvm_inject_gp(struct kvm_vcpu
*vcpu
, u32 error_code
)
1344 kvm_queue_exception_e(vcpu
, GP_VECTOR
, error_code
);
1347 #define TSS_IOPB_BASE_OFFSET 0x66
1348 #define TSS_BASE_SIZE 0x68
1349 #define TSS_IOPB_SIZE (65536 / 8)
1350 #define TSS_REDIRECTION_SIZE (256 / 8)
1351 #define RMODE_TSS_SIZE \
1352 (TSS_BASE_SIZE + TSS_REDIRECTION_SIZE + TSS_IOPB_SIZE + 1)
1355 TASK_SWITCH_CALL
= 0,
1356 TASK_SWITCH_IRET
= 1,
1357 TASK_SWITCH_JMP
= 2,
1358 TASK_SWITCH_GATE
= 3,
1361 #define HF_GIF_MASK (1 << 0)
1362 #define HF_HIF_MASK (1 << 1)
1363 #define HF_VINTR_MASK (1 << 2)
1364 #define HF_NMI_MASK (1 << 3)
1365 #define HF_IRET_MASK (1 << 4)
1366 #define HF_GUEST_MASK (1 << 5) /* VCPU is in guest-mode */
1367 #define HF_SMM_MASK (1 << 6)
1368 #define HF_SMM_INSIDE_NMI_MASK (1 << 7)
1370 #define __KVM_VCPU_MULTIPLE_ADDRESS_SPACE
1371 #define KVM_ADDRESS_SPACE_NUM 2
1373 #define kvm_arch_vcpu_memslots_id(vcpu) ((vcpu)->arch.hflags & HF_SMM_MASK ? 1 : 0)
1374 #define kvm_memslots_for_spte_role(kvm, role) __kvm_memslots(kvm, (role).smm)
1377 * Hardware virtualization extension instructions may fault if a
1378 * reboot turns off virtualization while processes are running.
1379 * Trap the fault and ignore the instruction if that happens.
1381 asmlinkage
void kvm_spurious_fault(void);
1383 #define ____kvm_handle_fault_on_reboot(insn, cleanup_insn) \
1384 "666: " insn "\n\t" \
1386 ".pushsection .fixup, \"ax\" \n" \
1388 cleanup_insn "\n\t" \
1389 "cmpb $0, kvm_rebooting \n\t" \
1391 __ASM_SIZE(push) " $666b \n\t" \
1392 "call kvm_spurious_fault \n\t" \
1393 ".popsection \n\t" \
1394 _ASM_EXTABLE(666b, 667b)
1396 #define __kvm_handle_fault_on_reboot(insn) \
1397 ____kvm_handle_fault_on_reboot(insn, "")
1399 #define KVM_ARCH_WANT_MMU_NOTIFIER
1400 int kvm_unmap_hva(struct kvm
*kvm
, unsigned long hva
);
1401 int kvm_unmap_hva_range(struct kvm
*kvm
, unsigned long start
, unsigned long end
);
1402 int kvm_age_hva(struct kvm
*kvm
, unsigned long start
, unsigned long end
);
1403 int kvm_test_age_hva(struct kvm
*kvm
, unsigned long hva
);
1404 void kvm_set_spte_hva(struct kvm
*kvm
, unsigned long hva
, pte_t pte
);
1405 int kvm_cpu_has_injectable_intr(struct kvm_vcpu
*v
);
1406 int kvm_cpu_has_interrupt(struct kvm_vcpu
*vcpu
);
1407 int kvm_arch_interrupt_allowed(struct kvm_vcpu
*vcpu
);
1408 int kvm_cpu_get_interrupt(struct kvm_vcpu
*v
);
1409 void kvm_vcpu_reset(struct kvm_vcpu
*vcpu
, bool init_event
);
1410 void kvm_vcpu_reload_apic_access_page(struct kvm_vcpu
*vcpu
);
1412 void kvm_define_shared_msr(unsigned index
, u32 msr
);
1413 int kvm_set_shared_msr(unsigned index
, u64 val
, u64 mask
);
1415 u64
kvm_scale_tsc(struct kvm_vcpu
*vcpu
, u64 tsc
);
1416 u64
kvm_read_l1_tsc(struct kvm_vcpu
*vcpu
, u64 host_tsc
);
1418 unsigned long kvm_get_linear_rip(struct kvm_vcpu
*vcpu
);
1419 bool kvm_is_linear_rip(struct kvm_vcpu
*vcpu
, unsigned long linear_rip
);
1421 void kvm_make_mclock_inprogress_request(struct kvm
*kvm
);
1422 void kvm_make_scan_ioapic_request(struct kvm
*kvm
);
1424 void kvm_arch_async_page_not_present(struct kvm_vcpu
*vcpu
,
1425 struct kvm_async_pf
*work
);
1426 void kvm_arch_async_page_present(struct kvm_vcpu
*vcpu
,
1427 struct kvm_async_pf
*work
);
1428 void kvm_arch_async_page_ready(struct kvm_vcpu
*vcpu
,
1429 struct kvm_async_pf
*work
);
1430 bool kvm_arch_can_inject_async_page_present(struct kvm_vcpu
*vcpu
);
1431 extern bool kvm_find_async_pf_gfn(struct kvm_vcpu
*vcpu
, gfn_t gfn
);
1433 int kvm_skip_emulated_instruction(struct kvm_vcpu
*vcpu
);
1434 int kvm_complete_insn_gp(struct kvm_vcpu
*vcpu
, int err
);
1436 int kvm_is_in_guest(void);
1438 int __x86_set_memory_region(struct kvm
*kvm
, int id
, gpa_t gpa
, u32 size
);
1439 int x86_set_memory_region(struct kvm
*kvm
, int id
, gpa_t gpa
, u32 size
);
1440 bool kvm_vcpu_is_reset_bsp(struct kvm_vcpu
*vcpu
);
1441 bool kvm_vcpu_is_bsp(struct kvm_vcpu
*vcpu
);
1443 bool kvm_intr_is_single_vcpu(struct kvm
*kvm
, struct kvm_lapic_irq
*irq
,
1444 struct kvm_vcpu
**dest_vcpu
);
1446 void kvm_set_msi_irq(struct kvm
*kvm
, struct kvm_kernel_irq_routing_entry
*e
,
1447 struct kvm_lapic_irq
*irq
);
1449 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu
*vcpu
)
1451 if (kvm_x86_ops
->vcpu_blocking
)
1452 kvm_x86_ops
->vcpu_blocking(vcpu
);
1455 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu
*vcpu
)
1457 if (kvm_x86_ops
->vcpu_unblocking
)
1458 kvm_x86_ops
->vcpu_unblocking(vcpu
);
1461 static inline void kvm_arch_vcpu_block_finish(struct kvm_vcpu
*vcpu
) {}
1463 static inline int kvm_cpu_get_apicid(int mps_cpu
)
1465 #ifdef CONFIG_X86_LOCAL_APIC
1466 return default_cpu_present_to_apicid(mps_cpu
);
1473 #define put_smstate(type, buf, offset, val) \
1474 *(type *)((buf) + (offset) - 0x7e00) = val
1476 #endif /* _ASM_X86_KVM_HOST_H */