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_HALT_POLL_NS_DEFAULT 200000
48 #define KVM_IRQCHIP_NUM_PINS KVM_IOAPIC_NUM_PINS
50 /* x86-specific vcpu->requests bit members */
51 #define KVM_REQ_MIGRATE_TIMER KVM_ARCH_REQ(0)
52 #define KVM_REQ_REPORT_TPR_ACCESS KVM_ARCH_REQ(1)
53 #define KVM_REQ_TRIPLE_FAULT KVM_ARCH_REQ(2)
54 #define KVM_REQ_MMU_SYNC KVM_ARCH_REQ(3)
55 #define KVM_REQ_CLOCK_UPDATE KVM_ARCH_REQ(4)
56 #define KVM_REQ_EVENT KVM_ARCH_REQ(6)
57 #define KVM_REQ_APF_HALT KVM_ARCH_REQ(7)
58 #define KVM_REQ_STEAL_UPDATE KVM_ARCH_REQ(8)
59 #define KVM_REQ_NMI KVM_ARCH_REQ(9)
60 #define KVM_REQ_PMU KVM_ARCH_REQ(10)
61 #define KVM_REQ_PMI KVM_ARCH_REQ(11)
62 #define KVM_REQ_SMI KVM_ARCH_REQ(12)
63 #define KVM_REQ_MASTERCLOCK_UPDATE KVM_ARCH_REQ(13)
64 #define KVM_REQ_MCLOCK_INPROGRESS \
65 KVM_ARCH_REQ_FLAGS(14, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
66 #define KVM_REQ_SCAN_IOAPIC \
67 KVM_ARCH_REQ_FLAGS(15, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
68 #define KVM_REQ_GLOBAL_CLOCK_UPDATE KVM_ARCH_REQ(16)
69 #define KVM_REQ_APIC_PAGE_RELOAD \
70 KVM_ARCH_REQ_FLAGS(17, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
71 #define KVM_REQ_HV_CRASH KVM_ARCH_REQ(18)
72 #define KVM_REQ_IOAPIC_EOI_EXIT KVM_ARCH_REQ(19)
73 #define KVM_REQ_HV_RESET KVM_ARCH_REQ(20)
74 #define KVM_REQ_HV_EXIT KVM_ARCH_REQ(21)
75 #define KVM_REQ_HV_STIMER KVM_ARCH_REQ(22)
77 #define CR0_RESERVED_BITS \
78 (~(unsigned long)(X86_CR0_PE | X86_CR0_MP | X86_CR0_EM | X86_CR0_TS \
79 | X86_CR0_ET | X86_CR0_NE | X86_CR0_WP | X86_CR0_AM \
80 | X86_CR0_NW | X86_CR0_CD | X86_CR0_PG))
82 #define CR3_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_LA57 | X86_CR4_VMXE \
89 | X86_CR4_SMAP | X86_CR4_PKE | X86_CR4_UMIP))
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 | \
210 * The mask used to denote special SPTEs, which can be either MMIO SPTEs or
211 * Access Tracking SPTEs. We use bit 62 instead of bit 63 to avoid conflicting
212 * with the SVE bit in EPT PTEs.
214 #define SPTE_SPECIAL_MASK (1ULL << 62)
216 /* apic attention bits */
217 #define KVM_APIC_CHECK_VAPIC 0
219 * The following bit is set with PV-EOI, unset on EOI.
220 * We detect PV-EOI changes by guest by comparing
221 * this bit with PV-EOI in guest memory.
222 * See the implementation in apic_update_pv_eoi.
224 #define KVM_APIC_PV_EOI_PENDING 1
226 struct kvm_kernel_irq_routing_entry;
229 * We don't want allocation failures within the mmu code, so we preallocate
230 * enough memory for a single page fault in a cache.
232 struct kvm_mmu_memory_cache {
234 void *objects[KVM_NR_MEM_OBJS];
238 * the pages used as guest page table on soft mmu are tracked by
239 * kvm_memory_slot.arch.gfn_track which is 16 bits, so the role bits used
240 * by indirect shadow page can not be more than 15 bits.
242 * Currently, we used 14 bits that are @level, @cr4_pae, @quadrant, @access,
243 * @nxe, @cr0_wp, @smep_andnot_wp and @smap_andnot_wp.
245 union kvm_mmu_page_role {
256 unsigned smep_andnot_wp:1;
257 unsigned smap_andnot_wp:1;
258 unsigned ad_disabled: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 #define PT64_ROOT_MAX_LEVEL 5
320 struct rsvd_bits_validate {
321 u64 rsvd_bits_mask[2][PT64_ROOT_MAX_LEVEL];
326 * x86 supports 4 paging modes (5-level 64-bit, 4-level 64-bit, 3-level 32-bit,
327 * and 2-level 32-bit). The kvm_mmu structure abstracts the details of the
331 void (*set_cr3)(struct kvm_vcpu *vcpu, unsigned long root);
332 unsigned long (*get_cr3)(struct kvm_vcpu *vcpu);
333 u64 (*get_pdptr)(struct kvm_vcpu *vcpu, int index);
334 int (*page_fault)(struct kvm_vcpu *vcpu, gva_t gva, u32 err,
336 void (*inject_page_fault)(struct kvm_vcpu *vcpu,
337 struct x86_exception *fault);
338 gpa_t (*gva_to_gpa)(struct kvm_vcpu *vcpu, gva_t gva, u32 access,
339 struct x86_exception *exception);
340 gpa_t (*translate_gpa)(struct kvm_vcpu *vcpu, gpa_t gpa, u32 access,
341 struct x86_exception *exception);
342 int (*sync_page)(struct kvm_vcpu *vcpu,
343 struct kvm_mmu_page *sp);
344 void (*invlpg)(struct kvm_vcpu *vcpu, gva_t gva);
345 void (*update_pte)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp,
346 u64 *spte, const void *pte);
348 union kvm_mmu_page_role base_role;
350 u8 shadow_root_level;
355 * Bitmap; bit set = permission fault
356 * Byte index: page fault error code [4:1]
357 * Bit index: pte permissions in ACC_* format
362 * The pkru_mask indicates if protection key checks are needed. It
363 * consists of 16 domains indexed by page fault error code bits [4:1],
364 * with PFEC.RSVD replaced by ACC_USER_MASK from the page tables.
365 * Each domain has 2 bits which are ANDed with AD and WD from PKRU.
373 * check zero bits on shadow page table entries, these
374 * bits include not only hardware reserved bits but also
375 * the bits spte never used.
377 struct rsvd_bits_validate shadow_zero_check;
379 struct rsvd_bits_validate guest_rsvd_check;
381 /* Can have large pages at levels 2..last_nonleaf_level-1. */
382 u8 last_nonleaf_level;
386 u64 pdptrs[4]; /* pae */
399 struct perf_event *perf_event;
400 struct kvm_vcpu *vcpu;
404 unsigned nr_arch_gp_counters;
405 unsigned nr_arch_fixed_counters;
406 unsigned available_event_types;
411 u64 counter_bitmask[2];
412 u64 global_ctrl_mask;
415 struct kvm_pmc gp_counters[INTEL_PMC_MAX_GENERIC];
416 struct kvm_pmc fixed_counters[INTEL_PMC_MAX_FIXED];
417 struct irq_work irq_work;
424 KVM_DEBUGREG_BP_ENABLED = 1,
425 KVM_DEBUGREG_WONT_EXIT = 2,
426 KVM_DEBUGREG_RELOAD = 4,
429 struct kvm_mtrr_range {
432 struct list_head node;
436 struct kvm_mtrr_range var_ranges[KVM_NR_VAR_MTRR];
437 mtrr_type fixed_ranges[KVM_NR_FIXED_MTRR_REGION];
440 struct list_head head;
443 /* Hyper-V SynIC timer */
444 struct kvm_vcpu_hv_stimer {
445 struct hrtimer timer;
450 struct hv_message msg;
454 /* Hyper-V synthetic interrupt controller (SynIC)*/
455 struct kvm_vcpu_hv_synic {
460 atomic64_t sint[HV_SYNIC_SINT_COUNT];
461 atomic_t sint_to_gsi[HV_SYNIC_SINT_COUNT];
462 DECLARE_BITMAP(auto_eoi_bitmap, 256);
463 DECLARE_BITMAP(vec_bitmap, 256);
465 bool dont_zero_synic_pages;
468 /* Hyper-V per vcpu emulation context */
473 struct kvm_vcpu_hv_synic synic;
474 struct kvm_hyperv_exit exit;
475 struct kvm_vcpu_hv_stimer stimer[HV_SYNIC_STIMER_COUNT];
476 DECLARE_BITMAP(stimer_pending_bitmap, HV_SYNIC_STIMER_COUNT);
479 struct kvm_vcpu_arch {
481 * rip and regs accesses must go through
482 * kvm_{register,rip}_{read,write} functions.
484 unsigned long regs[NR_VCPU_REGS];
489 unsigned long cr0_guest_owned_bits;
493 unsigned long cr4_guest_owned_bits;
499 struct kvm_lapic *apic; /* kernel irqchip context */
501 DECLARE_BITMAP(ioapic_handled_vectors, 256);
502 unsigned long apic_attention;
503 int32_t apic_arb_prio;
505 u64 ia32_misc_enable_msr;
508 bool tpr_access_reporting;
510 u64 microcode_version;
513 * Paging state of the vcpu
515 * If the vcpu runs in guest mode with two level paging this still saves
516 * the paging mode of the l1 guest. This context is always used to
522 * Paging state of an L2 guest (used for nested npt)
524 * This context will save all necessary information to walk page tables
525 * of the an L2 guest. This context is only initialized for page table
526 * walking and not for faulting since we never handle l2 page faults on
529 struct kvm_mmu nested_mmu;
532 * Pointer to the mmu context currently used for
533 * gva_to_gpa translations.
535 struct kvm_mmu *walk_mmu;
537 struct kvm_mmu_memory_cache mmu_pte_list_desc_cache;
538 struct kvm_mmu_memory_cache mmu_page_cache;
539 struct kvm_mmu_memory_cache mmu_page_header_cache;
542 * QEMU userspace and the guest each have their own FPU state.
543 * In vcpu_run, we switch between the user and guest FPU contexts.
544 * While running a VCPU, the VCPU thread will have the guest FPU
547 * Note that while the PKRU state lives inside the fpu registers,
548 * it is switched out separately at VMENTER and VMEXIT time. The
549 * "guest_fpu" state here contains the guest FPU context, with the
553 struct fpu guest_fpu;
556 u64 guest_supported_xcr0;
557 u32 guest_xstate_size;
559 struct kvm_pio_request pio;
562 u8 event_exit_inst_len;
564 struct kvm_queued_exception {
573 struct kvm_queued_interrupt {
579 int halt_request; /* real mode on Intel only */
582 struct kvm_cpuid_entry2 cpuid_entries[KVM_MAX_CPUID_ENTRIES];
586 /* emulate context */
588 struct x86_emulate_ctxt emulate_ctxt;
589 bool emulate_regs_need_sync_to_vcpu;
590 bool emulate_regs_need_sync_from_vcpu;
591 int (*complete_userspace_io)(struct kvm_vcpu *vcpu);
594 struct pvclock_vcpu_time_info hv_clock;
595 unsigned int hw_tsc_khz;
596 struct gfn_to_hva_cache pv_time;
597 bool pv_time_enabled;
598 /* set guest stopped flag in pvclock flags field */
599 bool pvclock_set_guest_stopped_request;
604 struct gfn_to_hva_cache stime;
605 struct kvm_steal_time steal;
611 u64 tsc_offset_adjustment;
614 u64 this_tsc_generation;
616 bool tsc_always_catchup;
617 s8 virtual_tsc_shift;
618 u32 virtual_tsc_mult;
620 s64 ia32_tsc_adjust_msr;
621 u64 tsc_scaling_ratio;
623 atomic_t nmi_queued; /* unprocessed asynchronous NMIs */
624 unsigned nmi_pending; /* NMI queued after currently running handler */
625 bool nmi_injected; /* Trying to inject an NMI this entry */
626 bool smi_pending; /* SMI queued after currently running handler */
628 struct kvm_mtrr mtrr_state;
631 unsigned switch_db_regs;
632 unsigned long db[KVM_NR_DB_REGS];
635 unsigned long eff_db[KVM_NR_DB_REGS];
636 unsigned long guest_debug_dr7;
637 u64 msr_platform_info;
638 u64 msr_misc_features_enables;
646 /* Cache MMIO info */
654 /* used for guest single stepping over the given code position */
655 unsigned long singlestep_rip;
657 struct kvm_vcpu_hv hyperv;
659 cpumask_var_t wbinvd_dirty_mask;
661 unsigned long last_retry_eip;
662 unsigned long last_retry_addr;
666 gfn_t gfns[roundup_pow_of_two(ASYNC_PF_PER_VCPU)];
667 struct gfn_to_hva_cache data;
672 unsigned long nested_apf_token;
673 bool delivery_as_pf_vmexit;
676 /* OSVW MSRs (AMD only) */
684 struct gfn_to_hva_cache data;
688 * Indicate whether the access faults on its page table in guest
689 * which is set when fix page fault and used to detect unhandeable
692 bool write_fault_to_shadow_pgtable;
694 /* set at EPT violation at this point */
695 unsigned long exit_qualification;
697 /* pv related host specific info */
702 int pending_ioapic_eoi;
703 int pending_external_vector;
709 /* be preempted when it's in kernel-mode(cpl=0) */
710 bool preempted_in_kernel;
713 struct kvm_lpage_info {
717 struct kvm_arch_memory_slot {
718 struct kvm_rmap_head *rmap[KVM_NR_PAGE_SIZES];
719 struct kvm_lpage_info *lpage_info[KVM_NR_PAGE_SIZES - 1];
720 unsigned short *gfn_track[KVM_PAGE_TRACK_MAX];
724 * We use as the mode the number of bits allocated in the LDR for the
725 * logical processor ID. It happens that these are all powers of two.
726 * This makes it is very easy to detect cases where the APICs are
727 * configured for multiple modes; in that case, we cannot use the map and
728 * hence cannot use kvm_irq_delivery_to_apic_fast either.
730 #define KVM_APIC_MODE_XAPIC_CLUSTER 4
731 #define KVM_APIC_MODE_XAPIC_FLAT 8
732 #define KVM_APIC_MODE_X2APIC 16
734 struct kvm_apic_map {
739 struct kvm_lapic *xapic_flat_map[8];
740 struct kvm_lapic *xapic_cluster_map[16][4];
742 struct kvm_lapic *phys_map[];
745 /* Hyper-V emulation context */
747 struct mutex hv_lock;
752 /* Hyper-v based guest crash (NT kernel bugcheck) parameters */
753 u64 hv_crash_param[HV_X64_MSR_CRASH_PARAMS];
756 HV_REFERENCE_TSC_PAGE tsc_ref;
758 struct idr conn_to_evt;
760 u64 hv_reenlightenment_control;
761 u64 hv_tsc_emulation_control;
762 u64 hv_tsc_emulation_status;
765 enum kvm_irqchip_mode {
767 KVM_IRQCHIP_KERNEL, /* created with KVM_CREATE_IRQCHIP */
768 KVM_IRQCHIP_SPLIT, /* created with KVM_CAP_SPLIT_IRQCHIP */
771 struct kvm_sev_info {
772 bool active; /* SEV enabled guest */
773 unsigned int asid; /* ASID used for this guest */
774 unsigned int handle; /* SEV firmware handle */
775 int fd; /* SEV device fd */
776 unsigned long pages_locked; /* Number of pages locked */
777 struct list_head regions_list; /* List of registered regions */
781 unsigned int n_used_mmu_pages;
782 unsigned int n_requested_mmu_pages;
783 unsigned int n_max_mmu_pages;
784 unsigned int indirect_shadow_pages;
785 unsigned long mmu_valid_gen;
786 struct hlist_head mmu_page_hash[KVM_NUM_MMU_PAGES];
788 * Hash table of struct kvm_mmu_page.
790 struct list_head active_mmu_pages;
791 struct list_head zapped_obsolete_pages;
792 struct kvm_page_track_notifier_node mmu_sp_tracker;
793 struct kvm_page_track_notifier_head track_notifier_head;
795 struct list_head assigned_dev_head;
796 struct iommu_domain *iommu_domain;
797 bool iommu_noncoherent;
798 #define __KVM_HAVE_ARCH_NONCOHERENT_DMA
799 atomic_t noncoherent_dma_count;
800 #define __KVM_HAVE_ARCH_ASSIGNED_DEVICE
801 atomic_t assigned_device_count;
802 struct kvm_pic *vpic;
803 struct kvm_ioapic *vioapic;
804 struct kvm_pit *vpit;
805 atomic_t vapics_in_nmi_mode;
806 struct mutex apic_map_lock;
807 struct kvm_apic_map *apic_map;
809 unsigned int tss_addr;
810 bool apic_access_page_done;
817 bool ept_identity_pagetable_done;
818 gpa_t ept_identity_map_addr;
820 unsigned long irq_sources_bitmap;
822 raw_spinlock_t tsc_write_lock;
829 u64 cur_tsc_generation;
830 int nr_vcpus_matched_tsc;
832 spinlock_t pvclock_gtod_sync_lock;
833 bool use_master_clock;
834 u64 master_kernel_ns;
835 u64 master_cycle_now;
836 struct delayed_work kvmclock_update_work;
837 struct delayed_work kvmclock_sync_work;
839 struct kvm_xen_hvm_config xen_hvm_config;
841 /* reads protected by irq_srcu, writes by irq_lock */
842 struct hlist_head mask_notifier_list;
844 struct kvm_hv hyperv;
846 #ifdef CONFIG_KVM_MMU_AUDIT
850 bool backwards_tsc_observed;
851 bool boot_vcpu_runs_old_kvmclock;
856 enum kvm_irqchip_mode irqchip_mode;
857 u8 nr_reserved_ioapic_pins;
859 bool disabled_lapic_found;
861 /* Struct members for AVIC */
864 struct page *avic_logical_id_table_page;
865 struct page *avic_physical_id_table_page;
866 struct hlist_node hnode;
869 bool x2apic_broadcast_quirk_disabled;
871 struct kvm_sev_info sev_info;
875 ulong mmu_shadow_zapped;
877 ulong mmu_pte_updated;
878 ulong mmu_pde_zapped;
881 ulong mmu_cache_miss;
883 ulong remote_tlb_flush;
885 ulong max_mmu_page_hash_collisions;
888 struct kvm_vcpu_stat {
898 u64 irq_window_exits;
899 u64 nmi_window_exits;
901 u64 halt_successful_poll;
902 u64 halt_attempted_poll;
903 u64 halt_poll_invalid;
905 u64 request_irq_exits;
907 u64 host_state_reload;
910 u64 insn_emulation_fail;
917 struct x86_instruction_info;
925 struct kvm_lapic_irq {
937 int (*cpu_has_kvm_support)(void); /* __init */
938 int (*disabled_by_bios)(void); /* __init */
939 int (*hardware_enable)(void);
940 void (*hardware_disable)(void);
941 void (*check_processor_compatibility)(void *rtn);
942 int (*hardware_setup)(void); /* __init */
943 void (*hardware_unsetup)(void); /* __exit */
944 bool (*cpu_has_accelerated_tpr)(void);
945 bool (*cpu_has_high_real_mode_segbase)(void);
946 void (*cpuid_update)(struct kvm_vcpu *vcpu);
948 int (*vm_init)(struct kvm *kvm);
949 void (*vm_destroy)(struct kvm *kvm);
951 /* Create, but do not attach this VCPU */
952 struct kvm_vcpu *(*vcpu_create)(struct kvm *kvm, unsigned id);
953 void (*vcpu_free)(struct kvm_vcpu *vcpu);
954 void (*vcpu_reset)(struct kvm_vcpu *vcpu, bool init_event);
956 void (*prepare_guest_switch)(struct kvm_vcpu *vcpu);
957 void (*vcpu_load)(struct kvm_vcpu *vcpu, int cpu);
958 void (*vcpu_put)(struct kvm_vcpu *vcpu);
960 void (*update_bp_intercept)(struct kvm_vcpu *vcpu);
961 int (*get_msr)(struct kvm_vcpu *vcpu, struct msr_data *msr);
962 int (*set_msr)(struct kvm_vcpu *vcpu, struct msr_data *msr);
963 u64 (*get_segment_base)(struct kvm_vcpu *vcpu, int seg);
964 void (*get_segment)(struct kvm_vcpu *vcpu,
965 struct kvm_segment *var, int seg);
966 int (*get_cpl)(struct kvm_vcpu *vcpu);
967 void (*set_segment)(struct kvm_vcpu *vcpu,
968 struct kvm_segment *var, int seg);
969 void (*get_cs_db_l_bits)(struct kvm_vcpu *vcpu, int *db, int *l);
970 void (*decache_cr0_guest_bits)(struct kvm_vcpu *vcpu);
971 void (*decache_cr3)(struct kvm_vcpu *vcpu);
972 void (*decache_cr4_guest_bits)(struct kvm_vcpu *vcpu);
973 void (*set_cr0)(struct kvm_vcpu *vcpu, unsigned long cr0);
974 void (*set_cr3)(struct kvm_vcpu *vcpu, unsigned long cr3);
975 int (*set_cr4)(struct kvm_vcpu *vcpu, unsigned long cr4);
976 void (*set_efer)(struct kvm_vcpu *vcpu, u64 efer);
977 void (*get_idt)(struct kvm_vcpu *vcpu, struct desc_ptr *dt);
978 void (*set_idt)(struct kvm_vcpu *vcpu, struct desc_ptr *dt);
979 void (*get_gdt)(struct kvm_vcpu *vcpu, struct desc_ptr *dt);
980 void (*set_gdt)(struct kvm_vcpu *vcpu, struct desc_ptr *dt);
981 u64 (*get_dr6)(struct kvm_vcpu *vcpu);
982 void (*set_dr6)(struct kvm_vcpu *vcpu, unsigned long value);
983 void (*sync_dirty_debug_regs)(struct kvm_vcpu *vcpu);
984 void (*set_dr7)(struct kvm_vcpu *vcpu, unsigned long value);
985 void (*cache_reg)(struct kvm_vcpu *vcpu, enum kvm_reg reg);
986 unsigned long (*get_rflags)(struct kvm_vcpu *vcpu);
987 void (*set_rflags)(struct kvm_vcpu *vcpu, unsigned long rflags);
989 void (*tlb_flush)(struct kvm_vcpu *vcpu, bool invalidate_gpa);
991 void (*run)(struct kvm_vcpu *vcpu);
992 int (*handle_exit)(struct kvm_vcpu *vcpu);
993 void (*skip_emulated_instruction)(struct kvm_vcpu *vcpu);
994 void (*set_interrupt_shadow)(struct kvm_vcpu *vcpu, int mask);
995 u32 (*get_interrupt_shadow)(struct kvm_vcpu *vcpu);
996 void (*patch_hypercall)(struct kvm_vcpu *vcpu,
997 unsigned char *hypercall_addr);
998 void (*set_irq)(struct kvm_vcpu *vcpu);
999 void (*set_nmi)(struct kvm_vcpu *vcpu);
1000 void (*queue_exception)(struct kvm_vcpu *vcpu);
1001 void (*cancel_injection)(struct kvm_vcpu *vcpu);
1002 int (*interrupt_allowed)(struct kvm_vcpu *vcpu);
1003 int (*nmi_allowed)(struct kvm_vcpu *vcpu);
1004 bool (*get_nmi_mask)(struct kvm_vcpu *vcpu);
1005 void (*set_nmi_mask)(struct kvm_vcpu *vcpu, bool masked);
1006 void (*enable_nmi_window)(struct kvm_vcpu *vcpu);
1007 void (*enable_irq_window)(struct kvm_vcpu *vcpu);
1008 void (*update_cr8_intercept)(struct kvm_vcpu *vcpu, int tpr, int irr);
1009 bool (*get_enable_apicv)(struct kvm_vcpu *vcpu);
1010 void (*refresh_apicv_exec_ctrl)(struct kvm_vcpu *vcpu);
1011 void (*hwapic_irr_update)(struct kvm_vcpu *vcpu, int max_irr);
1012 void (*hwapic_isr_update)(struct kvm_vcpu *vcpu, int isr);
1013 void (*load_eoi_exitmap)(struct kvm_vcpu *vcpu, u64 *eoi_exit_bitmap);
1014 void (*set_virtual_x2apic_mode)(struct kvm_vcpu *vcpu, bool set);
1015 void (*set_apic_access_page_addr)(struct kvm_vcpu *vcpu, hpa_t hpa);
1016 void (*deliver_posted_interrupt)(struct kvm_vcpu *vcpu, int vector);
1017 int (*sync_pir_to_irr)(struct kvm_vcpu *vcpu);
1018 int (*set_tss_addr)(struct kvm *kvm, unsigned int addr);
1019 int (*get_tdp_level)(struct kvm_vcpu *vcpu);
1020 u64 (*get_mt_mask)(struct kvm_vcpu *vcpu, gfn_t gfn, bool is_mmio);
1021 int (*get_lpage_level)(void);
1022 bool (*rdtscp_supported)(void);
1023 bool (*invpcid_supported)(void);
1025 void (*set_tdp_cr3)(struct kvm_vcpu *vcpu, unsigned long cr3);
1027 void (*set_supported_cpuid)(u32 func, struct kvm_cpuid_entry2 *entry);
1029 bool (*has_wbinvd_exit)(void);
1031 void (*write_tsc_offset)(struct kvm_vcpu *vcpu, u64 offset);
1033 void (*get_exit_info)(struct kvm_vcpu *vcpu, u64 *info1, u64 *info2);
1035 int (*check_intercept)(struct kvm_vcpu *vcpu,
1036 struct x86_instruction_info *info,
1037 enum x86_intercept_stage stage);
1038 void (*handle_external_intr)(struct kvm_vcpu *vcpu);
1039 bool (*mpx_supported)(void);
1040 bool (*xsaves_supported)(void);
1041 bool (*umip_emulated)(void);
1043 int (*check_nested_events)(struct kvm_vcpu *vcpu, bool external_intr);
1045 void (*sched_in)(struct kvm_vcpu *kvm, int cpu);
1048 * Arch-specific dirty logging hooks. These hooks are only supposed to
1049 * be valid if the specific arch has hardware-accelerated dirty logging
1050 * mechanism. Currently only for PML on VMX.
1052 * - slot_enable_log_dirty:
1053 * called when enabling log dirty mode for the slot.
1054 * - slot_disable_log_dirty:
1055 * called when disabling log dirty mode for the slot.
1056 * also called when slot is created with log dirty disabled.
1057 * - flush_log_dirty:
1058 * called before reporting dirty_bitmap to userspace.
1059 * - enable_log_dirty_pt_masked:
1060 * called when reenabling log dirty for the GFNs in the mask after
1061 * corresponding bits are cleared in slot->dirty_bitmap.
1063 void (*slot_enable_log_dirty)(struct kvm *kvm,
1064 struct kvm_memory_slot *slot);
1065 void (*slot_disable_log_dirty)(struct kvm *kvm,
1066 struct kvm_memory_slot *slot);
1067 void (*flush_log_dirty)(struct kvm *kvm);
1068 void (*enable_log_dirty_pt_masked)(struct kvm *kvm,
1069 struct kvm_memory_slot *slot,
1070 gfn_t offset, unsigned long mask);
1071 int (*write_log_dirty)(struct kvm_vcpu *vcpu);
1073 /* pmu operations of sub-arch */
1074 const struct kvm_pmu_ops *pmu_ops;
1077 * Architecture specific hooks for vCPU blocking due to
1079 * Returns for .pre_block():
1080 * - 0 means continue to block the vCPU.
1081 * - 1 means we cannot block the vCPU since some event
1082 * happens during this period, such as, 'ON' bit in
1083 * posted-interrupts descriptor is set.
1085 int (*pre_block)(struct kvm_vcpu *vcpu);
1086 void (*post_block)(struct kvm_vcpu *vcpu);
1088 void (*vcpu_blocking)(struct kvm_vcpu *vcpu);
1089 void (*vcpu_unblocking)(struct kvm_vcpu *vcpu);
1091 int (*update_pi_irte)(struct kvm *kvm, unsigned int host_irq,
1092 uint32_t guest_irq, bool set);
1093 void (*apicv_post_state_restore)(struct kvm_vcpu *vcpu);
1095 int (*set_hv_timer)(struct kvm_vcpu *vcpu, u64 guest_deadline_tsc);
1096 void (*cancel_hv_timer)(struct kvm_vcpu *vcpu);
1098 void (*setup_mce)(struct kvm_vcpu *vcpu);
1100 int (*smi_allowed)(struct kvm_vcpu *vcpu);
1101 int (*pre_enter_smm)(struct kvm_vcpu *vcpu, char *smstate);
1102 int (*pre_leave_smm)(struct kvm_vcpu *vcpu, u64 smbase);
1103 int (*enable_smi_window)(struct kvm_vcpu *vcpu);
1105 int (*mem_enc_op)(struct kvm *kvm, void __user *argp);
1106 int (*mem_enc_reg_region)(struct kvm *kvm, struct kvm_enc_region *argp);
1107 int (*mem_enc_unreg_region)(struct kvm *kvm, struct kvm_enc_region *argp);
1109 int (*get_msr_feature)(struct kvm_msr_entry *entry);
1112 struct kvm_arch_async_pf {
1119 extern struct kvm_x86_ops *kvm_x86_ops;
1121 int kvm_mmu_module_init(void);
1122 void kvm_mmu_module_exit(void);
1124 void kvm_mmu_destroy(struct kvm_vcpu *vcpu);
1125 int kvm_mmu_create(struct kvm_vcpu *vcpu);
1126 void kvm_mmu_setup(struct kvm_vcpu *vcpu);
1127 void kvm_mmu_init_vm(struct kvm *kvm);
1128 void kvm_mmu_uninit_vm(struct kvm *kvm);
1129 void kvm_mmu_set_mask_ptes(u64 user_mask, u64 accessed_mask,
1130 u64 dirty_mask, u64 nx_mask, u64 x_mask, u64 p_mask,
1131 u64 acc_track_mask, u64 me_mask);
1133 void kvm_mmu_reset_context(struct kvm_vcpu *vcpu);
1134 void kvm_mmu_slot_remove_write_access(struct kvm *kvm,
1135 struct kvm_memory_slot *memslot);
1136 void kvm_mmu_zap_collapsible_sptes(struct kvm *kvm,
1137 const struct kvm_memory_slot *memslot);
1138 void kvm_mmu_slot_leaf_clear_dirty(struct kvm *kvm,
1139 struct kvm_memory_slot *memslot);
1140 void kvm_mmu_slot_largepage_remove_write_access(struct kvm *kvm,
1141 struct kvm_memory_slot *memslot);
1142 void kvm_mmu_slot_set_dirty(struct kvm *kvm,
1143 struct kvm_memory_slot *memslot);
1144 void kvm_mmu_clear_dirty_pt_masked(struct kvm *kvm,
1145 struct kvm_memory_slot *slot,
1146 gfn_t gfn_offset, unsigned long mask);
1147 void kvm_mmu_zap_all(struct kvm *kvm);
1148 void kvm_mmu_invalidate_mmio_sptes(struct kvm *kvm, struct kvm_memslots *slots);
1149 unsigned int kvm_mmu_calculate_mmu_pages(struct kvm *kvm);
1150 void kvm_mmu_change_mmu_pages(struct kvm *kvm, unsigned int kvm_nr_mmu_pages);
1152 int load_pdptrs(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu, unsigned long cr3);
1153 bool pdptrs_changed(struct kvm_vcpu *vcpu);
1155 int emulator_write_phys(struct kvm_vcpu *vcpu, gpa_t gpa,
1156 const void *val, int bytes);
1158 struct kvm_irq_mask_notifier {
1159 void (*func)(struct kvm_irq_mask_notifier *kimn, bool masked);
1161 struct hlist_node link;
1164 void kvm_register_irq_mask_notifier(struct kvm *kvm, int irq,
1165 struct kvm_irq_mask_notifier *kimn);
1166 void kvm_unregister_irq_mask_notifier(struct kvm *kvm, int irq,
1167 struct kvm_irq_mask_notifier *kimn);
1168 void kvm_fire_mask_notifiers(struct kvm *kvm, unsigned irqchip, unsigned pin,
1171 extern bool tdp_enabled;
1173 u64 vcpu_tsc_khz(struct kvm_vcpu *vcpu);
1175 /* control of guest tsc rate supported? */
1176 extern bool kvm_has_tsc_control;
1177 /* maximum supported tsc_khz for guests */
1178 extern u32 kvm_max_guest_tsc_khz;
1179 /* number of bits of the fractional part of the TSC scaling ratio */
1180 extern u8 kvm_tsc_scaling_ratio_frac_bits;
1181 /* maximum allowed value of TSC scaling ratio */
1182 extern u64 kvm_max_tsc_scaling_ratio;
1183 /* 1ull << kvm_tsc_scaling_ratio_frac_bits */
1184 extern u64 kvm_default_tsc_scaling_ratio;
1186 extern u64 kvm_mce_cap_supported;
1188 enum emulation_result {
1189 EMULATE_DONE, /* no further processing */
1190 EMULATE_USER_EXIT, /* kvm_run ready for userspace exit */
1191 EMULATE_FAIL, /* can't emulate this instruction */
1194 #define EMULTYPE_NO_DECODE (1 << 0)
1195 #define EMULTYPE_TRAP_UD (1 << 1)
1196 #define EMULTYPE_SKIP (1 << 2)
1197 #define EMULTYPE_RETRY (1 << 3)
1198 #define EMULTYPE_NO_REEXECUTE (1 << 4)
1199 #define EMULTYPE_NO_UD_ON_FAIL (1 << 5)
1200 #define EMULTYPE_VMWARE (1 << 6)
1201 int x86_emulate_instruction(struct kvm_vcpu *vcpu, unsigned long cr2,
1202 int emulation_type, void *insn, int insn_len);
1204 static inline int emulate_instruction(struct kvm_vcpu *vcpu,
1207 return x86_emulate_instruction(vcpu, 0,
1208 emulation_type | EMULTYPE_NO_REEXECUTE, NULL, 0);
1211 void kvm_enable_efer_bits(u64);
1212 bool kvm_valid_efer(struct kvm_vcpu *vcpu, u64 efer);
1213 int kvm_get_msr(struct kvm_vcpu *vcpu, struct msr_data *msr);
1214 int kvm_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr);
1216 struct x86_emulate_ctxt;
1218 int kvm_fast_pio(struct kvm_vcpu *vcpu, int size, unsigned short port, int in);
1219 int kvm_emulate_cpuid(struct kvm_vcpu *vcpu);
1220 int kvm_emulate_halt(struct kvm_vcpu *vcpu);
1221 int kvm_vcpu_halt(struct kvm_vcpu *vcpu);
1222 int kvm_emulate_wbinvd(struct kvm_vcpu *vcpu);
1224 void kvm_get_segment(struct kvm_vcpu *vcpu, struct kvm_segment *var, int seg);
1225 int kvm_load_segment_descriptor(struct kvm_vcpu *vcpu, u16 selector, int seg);
1226 void kvm_vcpu_deliver_sipi_vector(struct kvm_vcpu *vcpu, u8 vector);
1228 int kvm_task_switch(struct kvm_vcpu *vcpu, u16 tss_selector, int idt_index,
1229 int reason, bool has_error_code, u32 error_code);
1231 int kvm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0);
1232 int kvm_set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3);
1233 int kvm_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4);
1234 int kvm_set_cr8(struct kvm_vcpu *vcpu, unsigned long cr8);
1235 int kvm_set_dr(struct kvm_vcpu *vcpu, int dr, unsigned long val);
1236 int kvm_get_dr(struct kvm_vcpu *vcpu, int dr, unsigned long *val);
1237 unsigned long kvm_get_cr8(struct kvm_vcpu *vcpu);
1238 void kvm_lmsw(struct kvm_vcpu *vcpu, unsigned long msw);
1239 void kvm_get_cs_db_l_bits(struct kvm_vcpu *vcpu, int *db, int *l);
1240 int kvm_set_xcr(struct kvm_vcpu *vcpu, u32 index, u64 xcr);
1242 int kvm_get_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr);
1243 int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr);
1245 unsigned long kvm_get_rflags(struct kvm_vcpu *vcpu);
1246 void kvm_set_rflags(struct kvm_vcpu *vcpu, unsigned long rflags);
1247 bool kvm_rdpmc(struct kvm_vcpu *vcpu);
1249 void kvm_queue_exception(struct kvm_vcpu *vcpu, unsigned nr);
1250 void kvm_queue_exception_e(struct kvm_vcpu *vcpu, unsigned nr, u32 error_code);
1251 void kvm_requeue_exception(struct kvm_vcpu *vcpu, unsigned nr);
1252 void kvm_requeue_exception_e(struct kvm_vcpu *vcpu, unsigned nr, u32 error_code);
1253 void kvm_inject_page_fault(struct kvm_vcpu *vcpu, struct x86_exception *fault);
1254 int kvm_read_guest_page_mmu(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu,
1255 gfn_t gfn, void *data, int offset, int len,
1257 bool kvm_require_cpl(struct kvm_vcpu *vcpu, int required_cpl);
1258 bool kvm_require_dr(struct kvm_vcpu *vcpu, int dr);
1260 static inline int __kvm_irq_line_state(unsigned long *irq_state,
1261 int irq_source_id, int level)
1263 /* Logical OR for level trig interrupt */
1265 __set_bit(irq_source_id, irq_state);
1267 __clear_bit(irq_source_id, irq_state);
1269 return !!(*irq_state);
1272 int kvm_pic_set_irq(struct kvm_pic *pic, int irq, int irq_source_id, int level);
1273 void kvm_pic_clear_all(struct kvm_pic *pic, int irq_source_id);
1275 void kvm_inject_nmi(struct kvm_vcpu *vcpu);
1277 int kvm_mmu_unprotect_page(struct kvm *kvm, gfn_t gfn);
1278 int kvm_mmu_unprotect_page_virt(struct kvm_vcpu *vcpu, gva_t gva);
1279 void __kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu);
1280 int kvm_mmu_load(struct kvm_vcpu *vcpu);
1281 void kvm_mmu_unload(struct kvm_vcpu *vcpu);
1282 void kvm_mmu_sync_roots(struct kvm_vcpu *vcpu);
1283 gpa_t translate_nested_gpa(struct kvm_vcpu *vcpu, gpa_t gpa, u32 access,
1284 struct x86_exception *exception);
1285 gpa_t kvm_mmu_gva_to_gpa_read(struct kvm_vcpu *vcpu, gva_t gva,
1286 struct x86_exception *exception);
1287 gpa_t kvm_mmu_gva_to_gpa_fetch(struct kvm_vcpu *vcpu, gva_t gva,
1288 struct x86_exception *exception);
1289 gpa_t kvm_mmu_gva_to_gpa_write(struct kvm_vcpu *vcpu, gva_t gva,
1290 struct x86_exception *exception);
1291 gpa_t kvm_mmu_gva_to_gpa_system(struct kvm_vcpu *vcpu, gva_t gva,
1292 struct x86_exception *exception);
1294 void kvm_vcpu_deactivate_apicv(struct kvm_vcpu *vcpu);
1296 int kvm_emulate_hypercall(struct kvm_vcpu *vcpu);
1298 int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t gva, u64 error_code,
1299 void *insn, int insn_len);
1300 void kvm_mmu_invlpg(struct kvm_vcpu *vcpu, gva_t gva);
1301 void kvm_mmu_new_cr3(struct kvm_vcpu *vcpu);
1303 void kvm_enable_tdp(void);
1304 void kvm_disable_tdp(void);
1306 static inline gpa_t translate_gpa(struct kvm_vcpu *vcpu, gpa_t gpa, u32 access,
1307 struct x86_exception *exception)
1312 static inline struct kvm_mmu_page *page_header(hpa_t shadow_page)
1314 struct page *page = pfn_to_page(shadow_page >> PAGE_SHIFT);
1316 return (struct kvm_mmu_page *)page_private(page);
1319 static inline u16 kvm_read_ldt(void)
1322 asm("sldt %0" : "=g"(ldt));
1326 static inline void kvm_load_ldt(u16 sel)
1328 asm("lldt %0" : : "rm"(sel));
1331 #ifdef CONFIG_X86_64
1332 static inline unsigned long read_msr(unsigned long msr)
1341 static inline u32 get_rdx_init_val(void)
1343 return 0x600; /* P6 family */
1346 static inline void kvm_inject_gp(struct kvm_vcpu *vcpu, u32 error_code)
1348 kvm_queue_exception_e(vcpu, GP_VECTOR, error_code);
1351 #define TSS_IOPB_BASE_OFFSET 0x66
1352 #define TSS_BASE_SIZE 0x68
1353 #define TSS_IOPB_SIZE (65536 / 8)
1354 #define TSS_REDIRECTION_SIZE (256 / 8)
1355 #define RMODE_TSS_SIZE \
1356 (TSS_BASE_SIZE + TSS_REDIRECTION_SIZE + TSS_IOPB_SIZE + 1)
1359 TASK_SWITCH_CALL = 0,
1360 TASK_SWITCH_IRET = 1,
1361 TASK_SWITCH_JMP = 2,
1362 TASK_SWITCH_GATE = 3,
1365 #define HF_GIF_MASK (1 << 0)
1366 #define HF_HIF_MASK (1 << 1)
1367 #define HF_VINTR_MASK (1 << 2)
1368 #define HF_NMI_MASK (1 << 3)
1369 #define HF_IRET_MASK (1 << 4)
1370 #define HF_GUEST_MASK (1 << 5) /* VCPU is in guest-mode */
1371 #define HF_SMM_MASK (1 << 6)
1372 #define HF_SMM_INSIDE_NMI_MASK (1 << 7)
1374 #define __KVM_VCPU_MULTIPLE_ADDRESS_SPACE
1375 #define KVM_ADDRESS_SPACE_NUM 2
1377 #define kvm_arch_vcpu_memslots_id(vcpu) ((vcpu)->arch.hflags & HF_SMM_MASK ? 1 : 0)
1378 #define kvm_memslots_for_spte_role(kvm, role) __kvm_memslots(kvm, (role).smm)
1381 * Hardware virtualization extension instructions may fault if a
1382 * reboot turns off virtualization while processes are running.
1383 * Trap the fault and ignore the instruction if that happens.
1385 asmlinkage void kvm_spurious_fault(void);
1387 #define ____kvm_handle_fault_on_reboot(insn, cleanup_insn) \
1388 "666: " insn "\n\t" \
1390 ".pushsection .fixup, \"ax\" \n" \
1392 cleanup_insn "\n\t" \
1393 "cmpb $0, kvm_rebooting \n\t" \
1395 __ASM_SIZE(push) " $666b \n\t" \
1396 "call kvm_spurious_fault \n\t" \
1397 ".popsection \n\t" \
1398 _ASM_EXTABLE(666b, 667b)
1400 #define __kvm_handle_fault_on_reboot(insn) \
1401 ____kvm_handle_fault_on_reboot(insn, "")
1403 #define KVM_ARCH_WANT_MMU_NOTIFIER
1404 int kvm_unmap_hva(struct kvm *kvm, unsigned long hva);
1405 int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end);
1406 int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
1407 int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
1408 void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
1409 int kvm_cpu_has_injectable_intr(struct kvm_vcpu *v);
1410 int kvm_cpu_has_interrupt(struct kvm_vcpu *vcpu);
1411 int kvm_arch_interrupt_allowed(struct kvm_vcpu *vcpu);
1412 int kvm_cpu_get_interrupt(struct kvm_vcpu *v);
1413 void kvm_vcpu_reset(struct kvm_vcpu *vcpu, bool init_event);
1414 void kvm_vcpu_reload_apic_access_page(struct kvm_vcpu *vcpu);
1416 void kvm_define_shared_msr(unsigned index, u32 msr);
1417 int kvm_set_shared_msr(unsigned index, u64 val, u64 mask);
1419 u64 kvm_scale_tsc(struct kvm_vcpu *vcpu, u64 tsc);
1420 u64 kvm_read_l1_tsc(struct kvm_vcpu *vcpu, u64 host_tsc);
1422 unsigned long kvm_get_linear_rip(struct kvm_vcpu *vcpu);
1423 bool kvm_is_linear_rip(struct kvm_vcpu *vcpu, unsigned long linear_rip);
1425 void kvm_make_mclock_inprogress_request(struct kvm *kvm);
1426 void kvm_make_scan_ioapic_request(struct kvm *kvm);
1428 void kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu,
1429 struct kvm_async_pf *work);
1430 void kvm_arch_async_page_present(struct kvm_vcpu *vcpu,
1431 struct kvm_async_pf *work);
1432 void kvm_arch_async_page_ready(struct kvm_vcpu *vcpu,
1433 struct kvm_async_pf *work);
1434 bool kvm_arch_can_inject_async_page_present(struct kvm_vcpu *vcpu);
1435 extern bool kvm_find_async_pf_gfn(struct kvm_vcpu *vcpu, gfn_t gfn);
1437 int kvm_skip_emulated_instruction(struct kvm_vcpu *vcpu);
1438 int kvm_complete_insn_gp(struct kvm_vcpu *vcpu, int err);
1440 int kvm_is_in_guest(void);
1442 int __x86_set_memory_region(struct kvm *kvm, int id, gpa_t gpa, u32 size);
1443 int x86_set_memory_region(struct kvm *kvm, int id, gpa_t gpa, u32 size);
1444 bool kvm_vcpu_is_reset_bsp(struct kvm_vcpu *vcpu);
1445 bool kvm_vcpu_is_bsp(struct kvm_vcpu *vcpu);
1447 bool kvm_intr_is_single_vcpu(struct kvm *kvm, struct kvm_lapic_irq *irq,
1448 struct kvm_vcpu **dest_vcpu);
1450 void kvm_set_msi_irq(struct kvm *kvm, struct kvm_kernel_irq_routing_entry *e,
1451 struct kvm_lapic_irq *irq);
1453 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu)
1455 if (kvm_x86_ops->vcpu_blocking)
1456 kvm_x86_ops->vcpu_blocking(vcpu);
1459 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu)
1461 if (kvm_x86_ops->vcpu_unblocking)
1462 kvm_x86_ops->vcpu_unblocking(vcpu);
1465 static inline void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu) {}
1467 static inline int kvm_cpu_get_apicid(int mps_cpu)
1469 #ifdef CONFIG_X86_LOCAL_APIC
1470 return default_cpu_present_to_apicid(mps_cpu);
1477 #define put_smstate(type, buf, offset, val) \
1478 *(type *)((buf) + (offset) - 0x7e00) = val
1480 #endif /* _ASM_X86_KVM_HOST_H */