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8#ifndef _ASM_X86_KVM_HOST_H
9#define _ASM_X86_KVM_HOST_H
10
11#include <linux/types.h>
12#include <linux/mm.h>
13#include <linux/mmu_notifier.h>
14#include <linux/tracepoint.h>
15#include <linux/cpumask.h>
16#include <linux/irq_work.h>
17#include <linux/irq.h>
18
19#include <linux/kvm.h>
20#include <linux/kvm_para.h>
21#include <linux/kvm_types.h>
22#include <linux/perf_event.h>
23#include <linux/pvclock_gtod.h>
24#include <linux/clocksource.h>
25#include <linux/irqbypass.h>
26#include <linux/hyperv.h>
27
28#include <asm/apic.h>
29#include <asm/pvclock-abi.h>
30#include <asm/desc.h>
31#include <asm/mtrr.h>
32#include <asm/msr-index.h>
33#include <asm/asm.h>
34#include <asm/kvm_page_track.h>
35#include <asm/kvm_vcpu_regs.h>
36#include <asm/hyperv-tlfs.h>
37
38#define __KVM_HAVE_ARCH_VCPU_DEBUGFS
39
40#define KVM_MAX_VCPUS 288
41#define KVM_SOFT_MAX_VCPUS 240
42#define KVM_MAX_VCPU_ID 1023
43#define KVM_USER_MEM_SLOTS 509
44
45#define KVM_PRIVATE_MEM_SLOTS 3
46#define KVM_MEM_SLOTS_NUM (KVM_USER_MEM_SLOTS + KVM_PRIVATE_MEM_SLOTS)
47
48#define KVM_HALT_POLL_NS_DEFAULT 200000
49
50#define KVM_IRQCHIP_NUM_PINS KVM_IOAPIC_NUM_PINS
51
52
53#define KVM_REQ_MIGRATE_TIMER KVM_ARCH_REQ(0)
54#define KVM_REQ_REPORT_TPR_ACCESS KVM_ARCH_REQ(1)
55#define KVM_REQ_TRIPLE_FAULT KVM_ARCH_REQ(2)
56#define KVM_REQ_MMU_SYNC KVM_ARCH_REQ(3)
57#define KVM_REQ_CLOCK_UPDATE KVM_ARCH_REQ(4)
58#define KVM_REQ_LOAD_CR3 KVM_ARCH_REQ(5)
59#define KVM_REQ_EVENT KVM_ARCH_REQ(6)
60#define KVM_REQ_APF_HALT KVM_ARCH_REQ(7)
61#define KVM_REQ_STEAL_UPDATE KVM_ARCH_REQ(8)
62#define KVM_REQ_NMI KVM_ARCH_REQ(9)
63#define KVM_REQ_PMU KVM_ARCH_REQ(10)
64#define KVM_REQ_PMI KVM_ARCH_REQ(11)
65#define KVM_REQ_SMI KVM_ARCH_REQ(12)
66#define KVM_REQ_MASTERCLOCK_UPDATE KVM_ARCH_REQ(13)
67#define KVM_REQ_MCLOCK_INPROGRESS \
68 KVM_ARCH_REQ_FLAGS(14, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
69#define KVM_REQ_SCAN_IOAPIC \
70 KVM_ARCH_REQ_FLAGS(15, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
71#define KVM_REQ_GLOBAL_CLOCK_UPDATE KVM_ARCH_REQ(16)
72#define KVM_REQ_APIC_PAGE_RELOAD \
73 KVM_ARCH_REQ_FLAGS(17, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
74#define KVM_REQ_HV_CRASH KVM_ARCH_REQ(18)
75#define KVM_REQ_IOAPIC_EOI_EXIT KVM_ARCH_REQ(19)
76#define KVM_REQ_HV_RESET KVM_ARCH_REQ(20)
77#define KVM_REQ_HV_EXIT KVM_ARCH_REQ(21)
78#define KVM_REQ_HV_STIMER KVM_ARCH_REQ(22)
79#define KVM_REQ_LOAD_EOI_EXITMAP KVM_ARCH_REQ(23)
80#define KVM_REQ_GET_VMCS12_PAGES KVM_ARCH_REQ(24)
81
82#define CR0_RESERVED_BITS \
83 (~(unsigned long)(X86_CR0_PE | X86_CR0_MP | X86_CR0_EM | X86_CR0_TS \
84 | X86_CR0_ET | X86_CR0_NE | X86_CR0_WP | X86_CR0_AM \
85 | X86_CR0_NW | X86_CR0_CD | X86_CR0_PG))
86
87#define CR4_RESERVED_BITS \
88 (~(unsigned long)(X86_CR4_VME | X86_CR4_PVI | X86_CR4_TSD | X86_CR4_DE\
89 | X86_CR4_PSE | X86_CR4_PAE | X86_CR4_MCE \
90 | X86_CR4_PGE | X86_CR4_PCE | X86_CR4_OSFXSR | X86_CR4_PCIDE \
91 | X86_CR4_OSXSAVE | X86_CR4_SMEP | X86_CR4_FSGSBASE \
92 | X86_CR4_OSXMMEXCPT | X86_CR4_LA57 | X86_CR4_VMXE \
93 | X86_CR4_SMAP | X86_CR4_PKE | X86_CR4_UMIP))
94
95#define CR8_RESERVED_BITS (~(unsigned long)X86_CR8_TPR)
96
97
98
99#define INVALID_PAGE (~(hpa_t)0)
100#define VALID_PAGE(x) ((x) != INVALID_PAGE)
101
102#define UNMAPPED_GVA (~(gpa_t)0)
103
104
105enum {
106 PT_PAGE_TABLE_LEVEL = 1,
107 PT_DIRECTORY_LEVEL = 2,
108 PT_PDPE_LEVEL = 3,
109
110 PT_MAX_HUGEPAGE_LEVEL = PT_PDPE_LEVEL,
111};
112#define KVM_NR_PAGE_SIZES (PT_MAX_HUGEPAGE_LEVEL - \
113 PT_PAGE_TABLE_LEVEL + 1)
114#define KVM_HPAGE_GFN_SHIFT(x) (((x) - 1) * 9)
115#define KVM_HPAGE_SHIFT(x) (PAGE_SHIFT + KVM_HPAGE_GFN_SHIFT(x))
116#define KVM_HPAGE_SIZE(x) (1UL << KVM_HPAGE_SHIFT(x))
117#define KVM_HPAGE_MASK(x) (~(KVM_HPAGE_SIZE(x) - 1))
118#define KVM_PAGES_PER_HPAGE(x) (KVM_HPAGE_SIZE(x) / PAGE_SIZE)
119
120static inline gfn_t gfn_to_index(gfn_t gfn, gfn_t base_gfn, int level)
121{
122
123 return (gfn >> KVM_HPAGE_GFN_SHIFT(level)) -
124 (base_gfn >> KVM_HPAGE_GFN_SHIFT(level));
125}
126
127#define KVM_PERMILLE_MMU_PAGES 20
128#define KVM_MIN_ALLOC_MMU_PAGES 64UL
129#define KVM_MMU_HASH_SHIFT 12
130#define KVM_NUM_MMU_PAGES (1 << KVM_MMU_HASH_SHIFT)
131#define KVM_MIN_FREE_MMU_PAGES 5
132#define KVM_REFILL_PAGES 25
133#define KVM_MAX_CPUID_ENTRIES 80
134#define KVM_NR_FIXED_MTRR_REGION 88
135#define KVM_NR_VAR_MTRR 8
136
137#define ASYNC_PF_PER_VCPU 64
138
139enum kvm_reg {
140 VCPU_REGS_RAX = __VCPU_REGS_RAX,
141 VCPU_REGS_RCX = __VCPU_REGS_RCX,
142 VCPU_REGS_RDX = __VCPU_REGS_RDX,
143 VCPU_REGS_RBX = __VCPU_REGS_RBX,
144 VCPU_REGS_RSP = __VCPU_REGS_RSP,
145 VCPU_REGS_RBP = __VCPU_REGS_RBP,
146 VCPU_REGS_RSI = __VCPU_REGS_RSI,
147 VCPU_REGS_RDI = __VCPU_REGS_RDI,
148#ifdef CONFIG_X86_64
149 VCPU_REGS_R8 = __VCPU_REGS_R8,
150 VCPU_REGS_R9 = __VCPU_REGS_R9,
151 VCPU_REGS_R10 = __VCPU_REGS_R10,
152 VCPU_REGS_R11 = __VCPU_REGS_R11,
153 VCPU_REGS_R12 = __VCPU_REGS_R12,
154 VCPU_REGS_R13 = __VCPU_REGS_R13,
155 VCPU_REGS_R14 = __VCPU_REGS_R14,
156 VCPU_REGS_R15 = __VCPU_REGS_R15,
157#endif
158 VCPU_REGS_RIP,
159 NR_VCPU_REGS
160};
161
162enum kvm_reg_ex {
163 VCPU_EXREG_PDPTR = NR_VCPU_REGS,
164 VCPU_EXREG_CR3,
165 VCPU_EXREG_RFLAGS,
166 VCPU_EXREG_SEGMENTS,
167};
168
169enum {
170 VCPU_SREG_ES,
171 VCPU_SREG_CS,
172 VCPU_SREG_SS,
173 VCPU_SREG_DS,
174 VCPU_SREG_FS,
175 VCPU_SREG_GS,
176 VCPU_SREG_TR,
177 VCPU_SREG_LDTR,
178};
179
180#include <asm/kvm_emulate.h>
181
182#define KVM_NR_MEM_OBJS 40
183
184#define KVM_NR_DB_REGS 4
185
186#define DR6_BD (1 << 13)
187#define DR6_BS (1 << 14)
188#define DR6_BT (1 << 15)
189#define DR6_RTM (1 << 16)
190#define DR6_FIXED_1 0xfffe0ff0
191#define DR6_INIT 0xffff0ff0
192#define DR6_VOLATILE 0x0001e00f
193
194#define DR7_BP_EN_MASK 0x000000ff
195#define DR7_GE (1 << 9)
196#define DR7_GD (1 << 13)
197#define DR7_FIXED_1 0x00000400
198#define DR7_VOLATILE 0xffff2bff
199
200#define PFERR_PRESENT_BIT 0
201#define PFERR_WRITE_BIT 1
202#define PFERR_USER_BIT 2
203#define PFERR_RSVD_BIT 3
204#define PFERR_FETCH_BIT 4
205#define PFERR_PK_BIT 5
206#define PFERR_GUEST_FINAL_BIT 32
207#define PFERR_GUEST_PAGE_BIT 33
208
209#define PFERR_PRESENT_MASK (1U << PFERR_PRESENT_BIT)
210#define PFERR_WRITE_MASK (1U << PFERR_WRITE_BIT)
211#define PFERR_USER_MASK (1U << PFERR_USER_BIT)
212#define PFERR_RSVD_MASK (1U << PFERR_RSVD_BIT)
213#define PFERR_FETCH_MASK (1U << PFERR_FETCH_BIT)
214#define PFERR_PK_MASK (1U << PFERR_PK_BIT)
215#define PFERR_GUEST_FINAL_MASK (1ULL << PFERR_GUEST_FINAL_BIT)
216#define PFERR_GUEST_PAGE_MASK (1ULL << PFERR_GUEST_PAGE_BIT)
217
218#define PFERR_NESTED_GUEST_PAGE (PFERR_GUEST_PAGE_MASK | \
219 PFERR_WRITE_MASK | \
220 PFERR_PRESENT_MASK)
221
222
223
224
225
226
227#define SPTE_SPECIAL_MASK (1ULL << 62)
228
229
230#define KVM_APIC_CHECK_VAPIC 0
231
232
233
234
235
236
237#define KVM_APIC_PV_EOI_PENDING 1
238
239struct kvm_kernel_irq_routing_entry;
240
241
242
243
244
245struct kvm_mmu_memory_cache {
246 int nobjs;
247 void *objects[KVM_NR_MEM_OBJS];
248};
249
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256
257
258union kvm_mmu_page_role {
259 u32 word;
260 struct {
261 unsigned level:4;
262 unsigned gpte_is_8_bytes:1;
263 unsigned quadrant:2;
264 unsigned direct:1;
265 unsigned access:3;
266 unsigned invalid:1;
267 unsigned nxe:1;
268 unsigned cr0_wp:1;
269 unsigned smep_andnot_wp:1;
270 unsigned smap_andnot_wp:1;
271 unsigned ad_disabled:1;
272 unsigned guest_mode:1;
273 unsigned :6;
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279
280
281 unsigned smm:8;
282 };
283};
284
285union kvm_mmu_extended_role {
286
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290
291
292 u32 word;
293 struct {
294 unsigned int valid:1;
295 unsigned int execonly:1;
296 unsigned int cr0_pg:1;
297 unsigned int cr4_pae:1;
298 unsigned int cr4_pse:1;
299 unsigned int cr4_pke:1;
300 unsigned int cr4_smap:1;
301 unsigned int cr4_smep:1;
302 unsigned int cr4_la57:1;
303 unsigned int maxphyaddr:6;
304 };
305};
306
307union kvm_mmu_role {
308 u64 as_u64;
309 struct {
310 union kvm_mmu_page_role base;
311 union kvm_mmu_extended_role ext;
312 };
313};
314
315struct kvm_rmap_head {
316 unsigned long val;
317};
318
319struct kvm_mmu_page {
320 struct list_head link;
321 struct hlist_node hash_link;
322 bool unsync;
323 bool mmio_cached;
324
325
326
327
328
329 union kvm_mmu_page_role role;
330 gfn_t gfn;
331
332 u64 *spt;
333
334 gfn_t *gfns;
335 int root_count;
336 unsigned int unsync_children;
337 struct kvm_rmap_head parent_ptes;
338 unsigned long mmu_valid_gen;
339 DECLARE_BITMAP(unsync_child_bitmap, 512);
340
341#ifdef CONFIG_X86_32
342
343
344
345
346 int clear_spte_count;
347#endif
348
349
350 atomic_t write_flooding_count;
351};
352
353struct kvm_pio_request {
354 unsigned long linear_rip;
355 unsigned long count;
356 int in;
357 int port;
358 int size;
359};
360
361#define PT64_ROOT_MAX_LEVEL 5
362
363struct rsvd_bits_validate {
364 u64 rsvd_bits_mask[2][PT64_ROOT_MAX_LEVEL];
365 u64 bad_mt_xwr;
366};
367
368struct kvm_mmu_root_info {
369 gpa_t cr3;
370 hpa_t hpa;
371};
372
373#define KVM_MMU_ROOT_INFO_INVALID \
374 ((struct kvm_mmu_root_info) { .cr3 = INVALID_PAGE, .hpa = INVALID_PAGE })
375
376#define KVM_MMU_NUM_PREV_ROOTS 3
377
378
379
380
381
382
383struct kvm_mmu {
384 void (*set_cr3)(struct kvm_vcpu *vcpu, unsigned long root);
385 unsigned long (*get_cr3)(struct kvm_vcpu *vcpu);
386 u64 (*get_pdptr)(struct kvm_vcpu *vcpu, int index);
387 int (*page_fault)(struct kvm_vcpu *vcpu, gva_t gva, u32 err,
388 bool prefault);
389 void (*inject_page_fault)(struct kvm_vcpu *vcpu,
390 struct x86_exception *fault);
391 gpa_t (*gva_to_gpa)(struct kvm_vcpu *vcpu, gva_t gva, u32 access,
392 struct x86_exception *exception);
393 gpa_t (*translate_gpa)(struct kvm_vcpu *vcpu, gpa_t gpa, u32 access,
394 struct x86_exception *exception);
395 int (*sync_page)(struct kvm_vcpu *vcpu,
396 struct kvm_mmu_page *sp);
397 void (*invlpg)(struct kvm_vcpu *vcpu, gva_t gva, hpa_t root_hpa);
398 void (*update_pte)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp,
399 u64 *spte, const void *pte);
400 hpa_t root_hpa;
401 gpa_t root_cr3;
402 union kvm_mmu_role mmu_role;
403 u8 root_level;
404 u8 shadow_root_level;
405 u8 ept_ad;
406 bool direct_map;
407 struct kvm_mmu_root_info prev_roots[KVM_MMU_NUM_PREV_ROOTS];
408
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411
412
413
414 u8 permissions[16];
415
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420
421
422 u32 pkru_mask;
423
424 u64 *pae_root;
425 u64 *lm_root;
426
427
428
429
430
431
432 struct rsvd_bits_validate shadow_zero_check;
433
434 struct rsvd_bits_validate guest_rsvd_check;
435
436
437 u8 last_nonleaf_level;
438
439 bool nx;
440
441 u64 pdptrs[4];
442};
443
444struct kvm_tlb_range {
445 u64 start_gfn;
446 u64 pages;
447};
448
449enum pmc_type {
450 KVM_PMC_GP = 0,
451 KVM_PMC_FIXED,
452};
453
454struct kvm_pmc {
455 enum pmc_type type;
456 u8 idx;
457 u64 counter;
458 u64 eventsel;
459 struct perf_event *perf_event;
460 struct kvm_vcpu *vcpu;
461};
462
463struct kvm_pmu {
464 unsigned nr_arch_gp_counters;
465 unsigned nr_arch_fixed_counters;
466 unsigned available_event_types;
467 u64 fixed_ctr_ctrl;
468 u64 global_ctrl;
469 u64 global_status;
470 u64 global_ovf_ctrl;
471 u64 counter_bitmask[2];
472 u64 global_ctrl_mask;
473 u64 global_ovf_ctrl_mask;
474 u64 reserved_bits;
475 u8 version;
476 struct kvm_pmc gp_counters[INTEL_PMC_MAX_GENERIC];
477 struct kvm_pmc fixed_counters[INTEL_PMC_MAX_FIXED];
478 struct irq_work irq_work;
479 u64 reprogram_pmi;
480};
481
482struct kvm_pmu_ops;
483
484enum {
485 KVM_DEBUGREG_BP_ENABLED = 1,
486 KVM_DEBUGREG_WONT_EXIT = 2,
487 KVM_DEBUGREG_RELOAD = 4,
488};
489
490struct kvm_mtrr_range {
491 u64 base;
492 u64 mask;
493 struct list_head node;
494};
495
496struct kvm_mtrr {
497 struct kvm_mtrr_range var_ranges[KVM_NR_VAR_MTRR];
498 mtrr_type fixed_ranges[KVM_NR_FIXED_MTRR_REGION];
499 u64 deftype;
500
501 struct list_head head;
502};
503
504
505struct kvm_vcpu_hv_stimer {
506 struct hrtimer timer;
507 int index;
508 union hv_stimer_config config;
509 u64 count;
510 u64 exp_time;
511 struct hv_message msg;
512 bool msg_pending;
513};
514
515
516struct kvm_vcpu_hv_synic {
517 u64 version;
518 u64 control;
519 u64 msg_page;
520 u64 evt_page;
521 atomic64_t sint[HV_SYNIC_SINT_COUNT];
522 atomic_t sint_to_gsi[HV_SYNIC_SINT_COUNT];
523 DECLARE_BITMAP(auto_eoi_bitmap, 256);
524 DECLARE_BITMAP(vec_bitmap, 256);
525 bool active;
526 bool dont_zero_synic_pages;
527};
528
529
530struct kvm_vcpu_hv {
531 u32 vp_index;
532 u64 hv_vapic;
533 s64 runtime_offset;
534 struct kvm_vcpu_hv_synic synic;
535 struct kvm_hyperv_exit exit;
536 struct kvm_vcpu_hv_stimer stimer[HV_SYNIC_STIMER_COUNT];
537 DECLARE_BITMAP(stimer_pending_bitmap, HV_SYNIC_STIMER_COUNT);
538 cpumask_t tlb_flush;
539};
540
541struct kvm_vcpu_arch {
542
543
544
545
546 unsigned long regs[NR_VCPU_REGS];
547 u32 regs_avail;
548 u32 regs_dirty;
549
550 unsigned long cr0;
551 unsigned long cr0_guest_owned_bits;
552 unsigned long cr2;
553 unsigned long cr3;
554 unsigned long cr4;
555 unsigned long cr4_guest_owned_bits;
556 unsigned long cr8;
557 u32 pkru;
558 u32 hflags;
559 u64 efer;
560 u64 apic_base;
561 struct kvm_lapic *apic;
562 bool apicv_active;
563 bool load_eoi_exitmap_pending;
564 DECLARE_BITMAP(ioapic_handled_vectors, 256);
565 unsigned long apic_attention;
566 int32_t apic_arb_prio;
567 int mp_state;
568 u64 ia32_misc_enable_msr;
569 u64 smbase;
570 u64 smi_count;
571 bool tpr_access_reporting;
572 u64 ia32_xss;
573 u64 microcode_version;
574 u64 arch_capabilities;
575
576
577
578
579
580
581
582
583 struct kvm_mmu *mmu;
584
585
586 struct kvm_mmu root_mmu;
587
588
589 struct kvm_mmu guest_mmu;
590
591
592
593
594
595
596
597
598
599 struct kvm_mmu nested_mmu;
600
601
602
603
604
605 struct kvm_mmu *walk_mmu;
606
607 struct kvm_mmu_memory_cache mmu_pte_list_desc_cache;
608 struct kvm_mmu_memory_cache mmu_page_cache;
609 struct kvm_mmu_memory_cache mmu_page_header_cache;
610
611
612
613
614
615
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617
618
619
620
621
622 struct fpu *user_fpu;
623 struct fpu *guest_fpu;
624
625 u64 xcr0;
626 u64 guest_supported_xcr0;
627 u32 guest_xstate_size;
628
629 struct kvm_pio_request pio;
630 void *pio_data;
631
632 u8 event_exit_inst_len;
633
634 struct kvm_queued_exception {
635 bool pending;
636 bool injected;
637 bool has_error_code;
638 u8 nr;
639 u32 error_code;
640 unsigned long payload;
641 bool has_payload;
642 u8 nested_apf;
643 } exception;
644
645 struct kvm_queued_interrupt {
646 bool injected;
647 bool soft;
648 u8 nr;
649 } interrupt;
650
651 int halt_request;
652
653 int cpuid_nent;
654 struct kvm_cpuid_entry2 cpuid_entries[KVM_MAX_CPUID_ENTRIES];
655
656 int maxphyaddr;
657
658
659
660 struct x86_emulate_ctxt emulate_ctxt;
661 bool emulate_regs_need_sync_to_vcpu;
662 bool emulate_regs_need_sync_from_vcpu;
663 int (*complete_userspace_io)(struct kvm_vcpu *vcpu);
664
665 gpa_t time;
666 struct pvclock_vcpu_time_info hv_clock;
667 unsigned int hw_tsc_khz;
668 struct gfn_to_hva_cache pv_time;
669 bool pv_time_enabled;
670
671 bool pvclock_set_guest_stopped_request;
672
673 struct {
674 u64 msr_val;
675 u64 last_steal;
676 struct gfn_to_hva_cache stime;
677 struct kvm_steal_time steal;
678 } st;
679
680 u64 tsc_offset;
681 u64 last_guest_tsc;
682 u64 last_host_tsc;
683 u64 tsc_offset_adjustment;
684 u64 this_tsc_nsec;
685 u64 this_tsc_write;
686 u64 this_tsc_generation;
687 bool tsc_catchup;
688 bool tsc_always_catchup;
689 s8 virtual_tsc_shift;
690 u32 virtual_tsc_mult;
691 u32 virtual_tsc_khz;
692 s64 ia32_tsc_adjust_msr;
693 u64 msr_ia32_power_ctl;
694 u64 tsc_scaling_ratio;
695
696 atomic_t nmi_queued;
697 unsigned nmi_pending;
698 bool nmi_injected;
699 bool smi_pending;
700
701 struct kvm_mtrr mtrr_state;
702 u64 pat;
703
704 unsigned switch_db_regs;
705 unsigned long db[KVM_NR_DB_REGS];
706 unsigned long dr6;
707 unsigned long dr7;
708 unsigned long eff_db[KVM_NR_DB_REGS];
709 unsigned long guest_debug_dr7;
710 u64 msr_platform_info;
711 u64 msr_misc_features_enables;
712
713 u64 mcg_cap;
714 u64 mcg_status;
715 u64 mcg_ctl;
716 u64 mcg_ext_ctl;
717 u64 *mce_banks;
718
719
720 u64 mmio_gva;
721 unsigned access;
722 gfn_t mmio_gfn;
723 u64 mmio_gen;
724
725 struct kvm_pmu pmu;
726
727
728 unsigned long singlestep_rip;
729
730 struct kvm_vcpu_hv hyperv;
731
732 cpumask_var_t wbinvd_dirty_mask;
733
734 unsigned long last_retry_eip;
735 unsigned long last_retry_addr;
736
737 struct {
738 bool halted;
739 gfn_t gfns[roundup_pow_of_two(ASYNC_PF_PER_VCPU)];
740 struct gfn_to_hva_cache data;
741 u64 msr_val;
742 u32 id;
743 bool send_user_only;
744 u32 host_apf_reason;
745 unsigned long nested_apf_token;
746 bool delivery_as_pf_vmexit;
747 } apf;
748
749
750 struct {
751 u64 length;
752 u64 status;
753 } osvw;
754
755 struct {
756 u64 msr_val;
757 struct gfn_to_hva_cache data;
758 } pv_eoi;
759
760 u64 msr_kvm_poll_control;
761
762
763
764
765
766
767 bool write_fault_to_shadow_pgtable;
768
769
770 unsigned long exit_qualification;
771
772
773 struct {
774 bool pv_unhalted;
775 } pv;
776
777 int pending_ioapic_eoi;
778 int pending_external_vector;
779
780
781 bool gpa_available;
782 gpa_t gpa_val;
783
784
785 bool preempted_in_kernel;
786
787
788 bool l1tf_flush_l1d;
789
790
791 u64 msr_hwcr;
792};
793
794struct kvm_lpage_info {
795 int disallow_lpage;
796};
797
798struct kvm_arch_memory_slot {
799 struct kvm_rmap_head *rmap[KVM_NR_PAGE_SIZES];
800 struct kvm_lpage_info *lpage_info[KVM_NR_PAGE_SIZES - 1];
801 unsigned short *gfn_track[KVM_PAGE_TRACK_MAX];
802};
803
804
805
806
807
808
809
810
811#define KVM_APIC_MODE_XAPIC_CLUSTER 4
812#define KVM_APIC_MODE_XAPIC_FLAT 8
813#define KVM_APIC_MODE_X2APIC 16
814
815struct kvm_apic_map {
816 struct rcu_head rcu;
817 u8 mode;
818 u32 max_apic_id;
819 union {
820 struct kvm_lapic *xapic_flat_map[8];
821 struct kvm_lapic *xapic_cluster_map[16][4];
822 };
823 struct kvm_lapic *phys_map[];
824};
825
826
827struct kvm_hv {
828 struct mutex hv_lock;
829 u64 hv_guest_os_id;
830 u64 hv_hypercall;
831 u64 hv_tsc_page;
832
833
834 u64 hv_crash_param[HV_X64_MSR_CRASH_PARAMS];
835 u64 hv_crash_ctl;
836
837 HV_REFERENCE_TSC_PAGE tsc_ref;
838
839 struct idr conn_to_evt;
840
841 u64 hv_reenlightenment_control;
842 u64 hv_tsc_emulation_control;
843 u64 hv_tsc_emulation_status;
844
845
846 atomic_t num_mismatched_vp_indexes;
847};
848
849enum kvm_irqchip_mode {
850 KVM_IRQCHIP_NONE,
851 KVM_IRQCHIP_KERNEL,
852 KVM_IRQCHIP_SPLIT,
853};
854
855struct kvm_arch {
856 unsigned long n_used_mmu_pages;
857 unsigned long n_requested_mmu_pages;
858 unsigned long n_max_mmu_pages;
859 unsigned int indirect_shadow_pages;
860 unsigned long mmu_valid_gen;
861 struct hlist_head mmu_page_hash[KVM_NUM_MMU_PAGES];
862
863
864
865 struct list_head active_mmu_pages;
866 struct kvm_page_track_notifier_node mmu_sp_tracker;
867 struct kvm_page_track_notifier_head track_notifier_head;
868
869 struct list_head assigned_dev_head;
870 struct iommu_domain *iommu_domain;
871 bool iommu_noncoherent;
872#define __KVM_HAVE_ARCH_NONCOHERENT_DMA
873 atomic_t noncoherent_dma_count;
874#define __KVM_HAVE_ARCH_ASSIGNED_DEVICE
875 atomic_t assigned_device_count;
876 struct kvm_pic *vpic;
877 struct kvm_ioapic *vioapic;
878 struct kvm_pit *vpit;
879 atomic_t vapics_in_nmi_mode;
880 struct mutex apic_map_lock;
881 struct kvm_apic_map *apic_map;
882
883 bool apic_access_page_done;
884
885 gpa_t wall_clock;
886
887 bool mwait_in_guest;
888 bool hlt_in_guest;
889 bool pause_in_guest;
890 bool cstate_in_guest;
891
892 unsigned long irq_sources_bitmap;
893 s64 kvmclock_offset;
894 raw_spinlock_t tsc_write_lock;
895 u64 last_tsc_nsec;
896 u64 last_tsc_write;
897 u32 last_tsc_khz;
898 u64 cur_tsc_nsec;
899 u64 cur_tsc_write;
900 u64 cur_tsc_offset;
901 u64 cur_tsc_generation;
902 int nr_vcpus_matched_tsc;
903
904 spinlock_t pvclock_gtod_sync_lock;
905 bool use_master_clock;
906 u64 master_kernel_ns;
907 u64 master_cycle_now;
908 struct delayed_work kvmclock_update_work;
909 struct delayed_work kvmclock_sync_work;
910
911 struct kvm_xen_hvm_config xen_hvm_config;
912
913
914 struct hlist_head mask_notifier_list;
915
916 struct kvm_hv hyperv;
917
918 #ifdef CONFIG_KVM_MMU_AUDIT
919 int audit_point;
920 #endif
921
922 bool backwards_tsc_observed;
923 bool boot_vcpu_runs_old_kvmclock;
924 u32 bsp_vcpu_id;
925
926 u64 disabled_quirks;
927
928 enum kvm_irqchip_mode irqchip_mode;
929 u8 nr_reserved_ioapic_pins;
930
931 bool disabled_lapic_found;
932
933 bool x2apic_format;
934 bool x2apic_broadcast_quirk_disabled;
935
936 bool guest_can_read_msr_platform_info;
937 bool exception_payload_enabled;
938
939 struct kvm_pmu_event_filter *pmu_event_filter;
940};
941
942struct kvm_vm_stat {
943 ulong mmu_shadow_zapped;
944 ulong mmu_pte_write;
945 ulong mmu_pte_updated;
946 ulong mmu_pde_zapped;
947 ulong mmu_flooded;
948 ulong mmu_recycled;
949 ulong mmu_cache_miss;
950 ulong mmu_unsync;
951 ulong remote_tlb_flush;
952 ulong lpages;
953 ulong max_mmu_page_hash_collisions;
954};
955
956struct kvm_vcpu_stat {
957 u64 pf_fixed;
958 u64 pf_guest;
959 u64 tlb_flush;
960 u64 invlpg;
961
962 u64 exits;
963 u64 io_exits;
964 u64 mmio_exits;
965 u64 signal_exits;
966 u64 irq_window_exits;
967 u64 nmi_window_exits;
968 u64 l1d_flush;
969 u64 halt_exits;
970 u64 halt_successful_poll;
971 u64 halt_attempted_poll;
972 u64 halt_poll_invalid;
973 u64 halt_wakeup;
974 u64 request_irq_exits;
975 u64 irq_exits;
976 u64 host_state_reload;
977 u64 fpu_reload;
978 u64 insn_emulation;
979 u64 insn_emulation_fail;
980 u64 hypercalls;
981 u64 irq_injections;
982 u64 nmi_injections;
983 u64 req_event;
984};
985
986struct x86_instruction_info;
987
988struct msr_data {
989 bool host_initiated;
990 u32 index;
991 u64 data;
992};
993
994struct kvm_lapic_irq {
995 u32 vector;
996 u16 delivery_mode;
997 u16 dest_mode;
998 bool level;
999 u16 trig_mode;
1000 u32 shorthand;
1001 u32 dest_id;
1002 bool msi_redir_hint;
1003};
1004
1005struct kvm_x86_ops {
1006 int (*cpu_has_kvm_support)(void);
1007 int (*disabled_by_bios)(void);
1008 int (*hardware_enable)(void);
1009 void (*hardware_disable)(void);
1010 int (*check_processor_compatibility)(void);
1011 int (*hardware_setup)(void);
1012 void (*hardware_unsetup)(void);
1013 bool (*cpu_has_accelerated_tpr)(void);
1014 bool (*has_emulated_msr)(int index);
1015 void (*cpuid_update)(struct kvm_vcpu *vcpu);
1016
1017 struct kvm *(*vm_alloc)(void);
1018 void (*vm_free)(struct kvm *);
1019 int (*vm_init)(struct kvm *kvm);
1020 void (*vm_destroy)(struct kvm *kvm);
1021
1022
1023 struct kvm_vcpu *(*vcpu_create)(struct kvm *kvm, unsigned id);
1024 void (*vcpu_free)(struct kvm_vcpu *vcpu);
1025 void (*vcpu_reset)(struct kvm_vcpu *vcpu, bool init_event);
1026
1027 void (*prepare_guest_switch)(struct kvm_vcpu *vcpu);
1028 void (*vcpu_load)(struct kvm_vcpu *vcpu, int cpu);
1029 void (*vcpu_put)(struct kvm_vcpu *vcpu);
1030
1031 void (*update_bp_intercept)(struct kvm_vcpu *vcpu);
1032 int (*get_msr)(struct kvm_vcpu *vcpu, struct msr_data *msr);
1033 int (*set_msr)(struct kvm_vcpu *vcpu, struct msr_data *msr);
1034 u64 (*get_segment_base)(struct kvm_vcpu *vcpu, int seg);
1035 void (*get_segment)(struct kvm_vcpu *vcpu,
1036 struct kvm_segment *var, int seg);
1037 int (*get_cpl)(struct kvm_vcpu *vcpu);
1038 void (*set_segment)(struct kvm_vcpu *vcpu,
1039 struct kvm_segment *var, int seg);
1040 void (*get_cs_db_l_bits)(struct kvm_vcpu *vcpu, int *db, int *l);
1041 void (*decache_cr0_guest_bits)(struct kvm_vcpu *vcpu);
1042 void (*decache_cr3)(struct kvm_vcpu *vcpu);
1043 void (*decache_cr4_guest_bits)(struct kvm_vcpu *vcpu);
1044 void (*set_cr0)(struct kvm_vcpu *vcpu, unsigned long cr0);
1045 void (*set_cr3)(struct kvm_vcpu *vcpu, unsigned long cr3);
1046 int (*set_cr4)(struct kvm_vcpu *vcpu, unsigned long cr4);
1047 void (*set_efer)(struct kvm_vcpu *vcpu, u64 efer);
1048 void (*get_idt)(struct kvm_vcpu *vcpu, struct desc_ptr *dt);
1049 void (*set_idt)(struct kvm_vcpu *vcpu, struct desc_ptr *dt);
1050 void (*get_gdt)(struct kvm_vcpu *vcpu, struct desc_ptr *dt);
1051 void (*set_gdt)(struct kvm_vcpu *vcpu, struct desc_ptr *dt);
1052 u64 (*get_dr6)(struct kvm_vcpu *vcpu);
1053 void (*set_dr6)(struct kvm_vcpu *vcpu, unsigned long value);
1054 void (*sync_dirty_debug_regs)(struct kvm_vcpu *vcpu);
1055 void (*set_dr7)(struct kvm_vcpu *vcpu, unsigned long value);
1056 void (*cache_reg)(struct kvm_vcpu *vcpu, enum kvm_reg reg);
1057 unsigned long (*get_rflags)(struct kvm_vcpu *vcpu);
1058 void (*set_rflags)(struct kvm_vcpu *vcpu, unsigned long rflags);
1059
1060 void (*tlb_flush)(struct kvm_vcpu *vcpu, bool invalidate_gpa);
1061 int (*tlb_remote_flush)(struct kvm *kvm);
1062 int (*tlb_remote_flush_with_range)(struct kvm *kvm,
1063 struct kvm_tlb_range *range);
1064
1065
1066
1067
1068
1069
1070
1071 void (*tlb_flush_gva)(struct kvm_vcpu *vcpu, gva_t addr);
1072
1073 void (*run)(struct kvm_vcpu *vcpu);
1074 int (*handle_exit)(struct kvm_vcpu *vcpu);
1075 void (*skip_emulated_instruction)(struct kvm_vcpu *vcpu);
1076 void (*set_interrupt_shadow)(struct kvm_vcpu *vcpu, int mask);
1077 u32 (*get_interrupt_shadow)(struct kvm_vcpu *vcpu);
1078 void (*patch_hypercall)(struct kvm_vcpu *vcpu,
1079 unsigned char *hypercall_addr);
1080 void (*set_irq)(struct kvm_vcpu *vcpu);
1081 void (*set_nmi)(struct kvm_vcpu *vcpu);
1082 void (*queue_exception)(struct kvm_vcpu *vcpu);
1083 void (*cancel_injection)(struct kvm_vcpu *vcpu);
1084 int (*interrupt_allowed)(struct kvm_vcpu *vcpu);
1085 int (*nmi_allowed)(struct kvm_vcpu *vcpu);
1086 bool (*get_nmi_mask)(struct kvm_vcpu *vcpu);
1087 void (*set_nmi_mask)(struct kvm_vcpu *vcpu, bool masked);
1088 void (*enable_nmi_window)(struct kvm_vcpu *vcpu);
1089 void (*enable_irq_window)(struct kvm_vcpu *vcpu);
1090 void (*update_cr8_intercept)(struct kvm_vcpu *vcpu, int tpr, int irr);
1091 bool (*get_enable_apicv)(struct kvm_vcpu *vcpu);
1092 void (*refresh_apicv_exec_ctrl)(struct kvm_vcpu *vcpu);
1093 void (*hwapic_irr_update)(struct kvm_vcpu *vcpu, int max_irr);
1094 void (*hwapic_isr_update)(struct kvm_vcpu *vcpu, int isr);
1095 bool (*guest_apic_has_interrupt)(struct kvm_vcpu *vcpu);
1096 void (*load_eoi_exitmap)(struct kvm_vcpu *vcpu, u64 *eoi_exit_bitmap);
1097 void (*set_virtual_apic_mode)(struct kvm_vcpu *vcpu);
1098 void (*set_apic_access_page_addr)(struct kvm_vcpu *vcpu, hpa_t hpa);
1099 void (*deliver_posted_interrupt)(struct kvm_vcpu *vcpu, int vector);
1100 int (*sync_pir_to_irr)(struct kvm_vcpu *vcpu);
1101 int (*set_tss_addr)(struct kvm *kvm, unsigned int addr);
1102 int (*set_identity_map_addr)(struct kvm *kvm, u64 ident_addr);
1103 int (*get_tdp_level)(struct kvm_vcpu *vcpu);
1104 u64 (*get_mt_mask)(struct kvm_vcpu *vcpu, gfn_t gfn, bool is_mmio);
1105 int (*get_lpage_level)(void);
1106 bool (*rdtscp_supported)(void);
1107 bool (*invpcid_supported)(void);
1108
1109 void (*set_tdp_cr3)(struct kvm_vcpu *vcpu, unsigned long cr3);
1110
1111 void (*set_supported_cpuid)(u32 func, struct kvm_cpuid_entry2 *entry);
1112
1113 bool (*has_wbinvd_exit)(void);
1114
1115 u64 (*read_l1_tsc_offset)(struct kvm_vcpu *vcpu);
1116
1117 u64 (*write_l1_tsc_offset)(struct kvm_vcpu *vcpu, u64 offset);
1118
1119 void (*get_exit_info)(struct kvm_vcpu *vcpu, u64 *info1, u64 *info2);
1120
1121 int (*check_intercept)(struct kvm_vcpu *vcpu,
1122 struct x86_instruction_info *info,
1123 enum x86_intercept_stage stage);
1124 void (*handle_exit_irqoff)(struct kvm_vcpu *vcpu);
1125 bool (*mpx_supported)(void);
1126 bool (*xsaves_supported)(void);
1127 bool (*umip_emulated)(void);
1128 bool (*pt_supported)(void);
1129
1130 int (*check_nested_events)(struct kvm_vcpu *vcpu, bool external_intr);
1131 void (*request_immediate_exit)(struct kvm_vcpu *vcpu);
1132
1133 void (*sched_in)(struct kvm_vcpu *kvm, int cpu);
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151 void (*slot_enable_log_dirty)(struct kvm *kvm,
1152 struct kvm_memory_slot *slot);
1153 void (*slot_disable_log_dirty)(struct kvm *kvm,
1154 struct kvm_memory_slot *slot);
1155 void (*flush_log_dirty)(struct kvm *kvm);
1156 void (*enable_log_dirty_pt_masked)(struct kvm *kvm,
1157 struct kvm_memory_slot *slot,
1158 gfn_t offset, unsigned long mask);
1159 int (*write_log_dirty)(struct kvm_vcpu *vcpu);
1160
1161
1162 const struct kvm_pmu_ops *pmu_ops;
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173 int (*pre_block)(struct kvm_vcpu *vcpu);
1174 void (*post_block)(struct kvm_vcpu *vcpu);
1175
1176 void (*vcpu_blocking)(struct kvm_vcpu *vcpu);
1177 void (*vcpu_unblocking)(struct kvm_vcpu *vcpu);
1178
1179 int (*update_pi_irte)(struct kvm *kvm, unsigned int host_irq,
1180 uint32_t guest_irq, bool set);
1181 void (*apicv_post_state_restore)(struct kvm_vcpu *vcpu);
1182 bool (*dy_apicv_has_pending_interrupt)(struct kvm_vcpu *vcpu);
1183
1184 int (*set_hv_timer)(struct kvm_vcpu *vcpu, u64 guest_deadline_tsc,
1185 bool *expired);
1186 void (*cancel_hv_timer)(struct kvm_vcpu *vcpu);
1187
1188 void (*setup_mce)(struct kvm_vcpu *vcpu);
1189
1190 int (*get_nested_state)(struct kvm_vcpu *vcpu,
1191 struct kvm_nested_state __user *user_kvm_nested_state,
1192 unsigned user_data_size);
1193 int (*set_nested_state)(struct kvm_vcpu *vcpu,
1194 struct kvm_nested_state __user *user_kvm_nested_state,
1195 struct kvm_nested_state *kvm_state);
1196 void (*get_vmcs12_pages)(struct kvm_vcpu *vcpu);
1197
1198 int (*smi_allowed)(struct kvm_vcpu *vcpu);
1199 int (*pre_enter_smm)(struct kvm_vcpu *vcpu, char *smstate);
1200 int (*pre_leave_smm)(struct kvm_vcpu *vcpu, const char *smstate);
1201 int (*enable_smi_window)(struct kvm_vcpu *vcpu);
1202
1203 int (*mem_enc_op)(struct kvm *kvm, void __user *argp);
1204 int (*mem_enc_reg_region)(struct kvm *kvm, struct kvm_enc_region *argp);
1205 int (*mem_enc_unreg_region)(struct kvm *kvm, struct kvm_enc_region *argp);
1206
1207 int (*get_msr_feature)(struct kvm_msr_entry *entry);
1208
1209 int (*nested_enable_evmcs)(struct kvm_vcpu *vcpu,
1210 uint16_t *vmcs_version);
1211 uint16_t (*nested_get_evmcs_version)(struct kvm_vcpu *vcpu);
1212
1213 bool (*need_emulation_on_page_fault)(struct kvm_vcpu *vcpu);
1214};
1215
1216struct kvm_arch_async_pf {
1217 u32 token;
1218 gfn_t gfn;
1219 unsigned long cr3;
1220 bool direct_map;
1221};
1222
1223extern struct kvm_x86_ops *kvm_x86_ops;
1224extern struct kmem_cache *x86_fpu_cache;
1225
1226#define __KVM_HAVE_ARCH_VM_ALLOC
1227static inline struct kvm *kvm_arch_alloc_vm(void)
1228{
1229 return kvm_x86_ops->vm_alloc();
1230}
1231
1232static inline void kvm_arch_free_vm(struct kvm *kvm)
1233{
1234 return kvm_x86_ops->vm_free(kvm);
1235}
1236
1237#define __KVM_HAVE_ARCH_FLUSH_REMOTE_TLB
1238static inline int kvm_arch_flush_remote_tlb(struct kvm *kvm)
1239{
1240 if (kvm_x86_ops->tlb_remote_flush &&
1241 !kvm_x86_ops->tlb_remote_flush(kvm))
1242 return 0;
1243 else
1244 return -ENOTSUPP;
1245}
1246
1247int kvm_mmu_module_init(void);
1248void kvm_mmu_module_exit(void);
1249
1250void kvm_mmu_destroy(struct kvm_vcpu *vcpu);
1251int kvm_mmu_create(struct kvm_vcpu *vcpu);
1252void kvm_mmu_init_vm(struct kvm *kvm);
1253void kvm_mmu_uninit_vm(struct kvm *kvm);
1254void kvm_mmu_set_mask_ptes(u64 user_mask, u64 accessed_mask,
1255 u64 dirty_mask, u64 nx_mask, u64 x_mask, u64 p_mask,
1256 u64 acc_track_mask, u64 me_mask);
1257
1258void kvm_mmu_reset_context(struct kvm_vcpu *vcpu);
1259void kvm_mmu_slot_remove_write_access(struct kvm *kvm,
1260 struct kvm_memory_slot *memslot);
1261void kvm_mmu_zap_collapsible_sptes(struct kvm *kvm,
1262 const struct kvm_memory_slot *memslot);
1263void kvm_mmu_slot_leaf_clear_dirty(struct kvm *kvm,
1264 struct kvm_memory_slot *memslot);
1265void kvm_mmu_slot_largepage_remove_write_access(struct kvm *kvm,
1266 struct kvm_memory_slot *memslot);
1267void kvm_mmu_slot_set_dirty(struct kvm *kvm,
1268 struct kvm_memory_slot *memslot);
1269void kvm_mmu_clear_dirty_pt_masked(struct kvm *kvm,
1270 struct kvm_memory_slot *slot,
1271 gfn_t gfn_offset, unsigned long mask);
1272void kvm_mmu_zap_all(struct kvm *kvm);
1273void kvm_mmu_invalidate_mmio_sptes(struct kvm *kvm, u64 gen);
1274unsigned long kvm_mmu_calculate_default_mmu_pages(struct kvm *kvm);
1275void kvm_mmu_change_mmu_pages(struct kvm *kvm, unsigned long kvm_nr_mmu_pages);
1276
1277int load_pdptrs(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu, unsigned long cr3);
1278bool pdptrs_changed(struct kvm_vcpu *vcpu);
1279
1280int emulator_write_phys(struct kvm_vcpu *vcpu, gpa_t gpa,
1281 const void *val, int bytes);
1282
1283struct kvm_irq_mask_notifier {
1284 void (*func)(struct kvm_irq_mask_notifier *kimn, bool masked);
1285 int irq;
1286 struct hlist_node link;
1287};
1288
1289void kvm_register_irq_mask_notifier(struct kvm *kvm, int irq,
1290 struct kvm_irq_mask_notifier *kimn);
1291void kvm_unregister_irq_mask_notifier(struct kvm *kvm, int irq,
1292 struct kvm_irq_mask_notifier *kimn);
1293void kvm_fire_mask_notifiers(struct kvm *kvm, unsigned irqchip, unsigned pin,
1294 bool mask);
1295
1296extern bool tdp_enabled;
1297
1298u64 vcpu_tsc_khz(struct kvm_vcpu *vcpu);
1299
1300
1301extern bool kvm_has_tsc_control;
1302
1303extern u32 kvm_max_guest_tsc_khz;
1304
1305extern u8 kvm_tsc_scaling_ratio_frac_bits;
1306
1307extern u64 kvm_max_tsc_scaling_ratio;
1308
1309extern u64 kvm_default_tsc_scaling_ratio;
1310
1311extern u64 kvm_mce_cap_supported;
1312
1313enum emulation_result {
1314 EMULATE_DONE,
1315 EMULATE_USER_EXIT,
1316 EMULATE_FAIL,
1317};
1318
1319#define EMULTYPE_NO_DECODE (1 << 0)
1320#define EMULTYPE_TRAP_UD (1 << 1)
1321#define EMULTYPE_SKIP (1 << 2)
1322#define EMULTYPE_ALLOW_RETRY (1 << 3)
1323#define EMULTYPE_NO_UD_ON_FAIL (1 << 4)
1324#define EMULTYPE_VMWARE (1 << 5)
1325int kvm_emulate_instruction(struct kvm_vcpu *vcpu, int emulation_type);
1326int kvm_emulate_instruction_from_buffer(struct kvm_vcpu *vcpu,
1327 void *insn, int insn_len);
1328
1329void kvm_enable_efer_bits(u64);
1330bool kvm_valid_efer(struct kvm_vcpu *vcpu, u64 efer);
1331int kvm_get_msr(struct kvm_vcpu *vcpu, struct msr_data *msr);
1332int kvm_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr);
1333
1334struct x86_emulate_ctxt;
1335
1336int kvm_fast_pio(struct kvm_vcpu *vcpu, int size, unsigned short port, int in);
1337int kvm_emulate_cpuid(struct kvm_vcpu *vcpu);
1338int kvm_emulate_halt(struct kvm_vcpu *vcpu);
1339int kvm_vcpu_halt(struct kvm_vcpu *vcpu);
1340int kvm_emulate_wbinvd(struct kvm_vcpu *vcpu);
1341
1342void kvm_get_segment(struct kvm_vcpu *vcpu, struct kvm_segment *var, int seg);
1343int kvm_load_segment_descriptor(struct kvm_vcpu *vcpu, u16 selector, int seg);
1344void kvm_vcpu_deliver_sipi_vector(struct kvm_vcpu *vcpu, u8 vector);
1345
1346int kvm_task_switch(struct kvm_vcpu *vcpu, u16 tss_selector, int idt_index,
1347 int reason, bool has_error_code, u32 error_code);
1348
1349int kvm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0);
1350int kvm_set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3);
1351int kvm_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4);
1352int kvm_set_cr8(struct kvm_vcpu *vcpu, unsigned long cr8);
1353int kvm_set_dr(struct kvm_vcpu *vcpu, int dr, unsigned long val);
1354int kvm_get_dr(struct kvm_vcpu *vcpu, int dr, unsigned long *val);
1355unsigned long kvm_get_cr8(struct kvm_vcpu *vcpu);
1356void kvm_lmsw(struct kvm_vcpu *vcpu, unsigned long msw);
1357void kvm_get_cs_db_l_bits(struct kvm_vcpu *vcpu, int *db, int *l);
1358int kvm_set_xcr(struct kvm_vcpu *vcpu, u32 index, u64 xcr);
1359
1360int kvm_get_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr);
1361int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr);
1362
1363unsigned long kvm_get_rflags(struct kvm_vcpu *vcpu);
1364void kvm_set_rflags(struct kvm_vcpu *vcpu, unsigned long rflags);
1365bool kvm_rdpmc(struct kvm_vcpu *vcpu);
1366
1367void kvm_queue_exception(struct kvm_vcpu *vcpu, unsigned nr);
1368void kvm_queue_exception_e(struct kvm_vcpu *vcpu, unsigned nr, u32 error_code);
1369void kvm_requeue_exception(struct kvm_vcpu *vcpu, unsigned nr);
1370void kvm_requeue_exception_e(struct kvm_vcpu *vcpu, unsigned nr, u32 error_code);
1371void kvm_inject_page_fault(struct kvm_vcpu *vcpu, struct x86_exception *fault);
1372int kvm_read_guest_page_mmu(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu,
1373 gfn_t gfn, void *data, int offset, int len,
1374 u32 access);
1375bool kvm_require_cpl(struct kvm_vcpu *vcpu, int required_cpl);
1376bool kvm_require_dr(struct kvm_vcpu *vcpu, int dr);
1377
1378static inline int __kvm_irq_line_state(unsigned long *irq_state,
1379 int irq_source_id, int level)
1380{
1381
1382 if (level)
1383 __set_bit(irq_source_id, irq_state);
1384 else
1385 __clear_bit(irq_source_id, irq_state);
1386
1387 return !!(*irq_state);
1388}
1389
1390#define KVM_MMU_ROOT_CURRENT BIT(0)
1391#define KVM_MMU_ROOT_PREVIOUS(i) BIT(1+i)
1392#define KVM_MMU_ROOTS_ALL (~0UL)
1393
1394int kvm_pic_set_irq(struct kvm_pic *pic, int irq, int irq_source_id, int level);
1395void kvm_pic_clear_all(struct kvm_pic *pic, int irq_source_id);
1396
1397void kvm_inject_nmi(struct kvm_vcpu *vcpu);
1398
1399int kvm_mmu_unprotect_page(struct kvm *kvm, gfn_t gfn);
1400int kvm_mmu_unprotect_page_virt(struct kvm_vcpu *vcpu, gva_t gva);
1401void __kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu);
1402int kvm_mmu_load(struct kvm_vcpu *vcpu);
1403void kvm_mmu_unload(struct kvm_vcpu *vcpu);
1404void kvm_mmu_sync_roots(struct kvm_vcpu *vcpu);
1405void kvm_mmu_free_roots(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu,
1406 ulong roots_to_free);
1407gpa_t translate_nested_gpa(struct kvm_vcpu *vcpu, gpa_t gpa, u32 access,
1408 struct x86_exception *exception);
1409gpa_t kvm_mmu_gva_to_gpa_read(struct kvm_vcpu *vcpu, gva_t gva,
1410 struct x86_exception *exception);
1411gpa_t kvm_mmu_gva_to_gpa_fetch(struct kvm_vcpu *vcpu, gva_t gva,
1412 struct x86_exception *exception);
1413gpa_t kvm_mmu_gva_to_gpa_write(struct kvm_vcpu *vcpu, gva_t gva,
1414 struct x86_exception *exception);
1415gpa_t kvm_mmu_gva_to_gpa_system(struct kvm_vcpu *vcpu, gva_t gva,
1416 struct x86_exception *exception);
1417
1418void kvm_vcpu_deactivate_apicv(struct kvm_vcpu *vcpu);
1419
1420int kvm_emulate_hypercall(struct kvm_vcpu *vcpu);
1421
1422int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t gva, u64 error_code,
1423 void *insn, int insn_len);
1424void kvm_mmu_invlpg(struct kvm_vcpu *vcpu, gva_t gva);
1425void kvm_mmu_invpcid_gva(struct kvm_vcpu *vcpu, gva_t gva, unsigned long pcid);
1426void kvm_mmu_new_cr3(struct kvm_vcpu *vcpu, gpa_t new_cr3, bool skip_tlb_flush);
1427
1428void kvm_enable_tdp(void);
1429void kvm_disable_tdp(void);
1430
1431static inline gpa_t translate_gpa(struct kvm_vcpu *vcpu, gpa_t gpa, u32 access,
1432 struct x86_exception *exception)
1433{
1434 return gpa;
1435}
1436
1437static inline struct kvm_mmu_page *page_header(hpa_t shadow_page)
1438{
1439 struct page *page = pfn_to_page(shadow_page >> PAGE_SHIFT);
1440
1441 return (struct kvm_mmu_page *)page_private(page);
1442}
1443
1444static inline u16 kvm_read_ldt(void)
1445{
1446 u16 ldt;
1447 asm("sldt %0" : "=g"(ldt));
1448 return ldt;
1449}
1450
1451static inline void kvm_load_ldt(u16 sel)
1452{
1453 asm("lldt %0" : : "rm"(sel));
1454}
1455
1456#ifdef CONFIG_X86_64
1457static inline unsigned long read_msr(unsigned long msr)
1458{
1459 u64 value;
1460
1461 rdmsrl(msr, value);
1462 return value;
1463}
1464#endif
1465
1466static inline u32 get_rdx_init_val(void)
1467{
1468 return 0x600;
1469}
1470
1471static inline void kvm_inject_gp(struct kvm_vcpu *vcpu, u32 error_code)
1472{
1473 kvm_queue_exception_e(vcpu, GP_VECTOR, error_code);
1474}
1475
1476#define TSS_IOPB_BASE_OFFSET 0x66
1477#define TSS_BASE_SIZE 0x68
1478#define TSS_IOPB_SIZE (65536 / 8)
1479#define TSS_REDIRECTION_SIZE (256 / 8)
1480#define RMODE_TSS_SIZE \
1481 (TSS_BASE_SIZE + TSS_REDIRECTION_SIZE + TSS_IOPB_SIZE + 1)
1482
1483enum {
1484 TASK_SWITCH_CALL = 0,
1485 TASK_SWITCH_IRET = 1,
1486 TASK_SWITCH_JMP = 2,
1487 TASK_SWITCH_GATE = 3,
1488};
1489
1490#define HF_GIF_MASK (1 << 0)
1491#define HF_HIF_MASK (1 << 1)
1492#define HF_VINTR_MASK (1 << 2)
1493#define HF_NMI_MASK (1 << 3)
1494#define HF_IRET_MASK (1 << 4)
1495#define HF_GUEST_MASK (1 << 5)
1496#define HF_SMM_MASK (1 << 6)
1497#define HF_SMM_INSIDE_NMI_MASK (1 << 7)
1498
1499#define __KVM_VCPU_MULTIPLE_ADDRESS_SPACE
1500#define KVM_ADDRESS_SPACE_NUM 2
1501
1502#define kvm_arch_vcpu_memslots_id(vcpu) ((vcpu)->arch.hflags & HF_SMM_MASK ? 1 : 0)
1503#define kvm_memslots_for_spte_role(kvm, role) __kvm_memslots(kvm, (role).smm)
1504
1505asmlinkage void __noreturn kvm_spurious_fault(void);
1506
1507
1508
1509
1510
1511
1512
1513#define ____kvm_handle_fault_on_reboot(insn, cleanup_insn) \
1514 "666: \n\t" \
1515 insn "\n\t" \
1516 "jmp 668f \n\t" \
1517 "667: \n\t" \
1518 "call kvm_spurious_fault \n\t" \
1519 "668: \n\t" \
1520 ".pushsection .fixup, \"ax\" \n\t" \
1521 "700: \n\t" \
1522 cleanup_insn "\n\t" \
1523 "cmpb $0, kvm_rebooting\n\t" \
1524 "je 667b \n\t" \
1525 "jmp 668b \n\t" \
1526 ".popsection \n\t" \
1527 _ASM_EXTABLE(666b, 700b)
1528
1529#define __kvm_handle_fault_on_reboot(insn) \
1530 ____kvm_handle_fault_on_reboot(insn, "")
1531
1532#define KVM_ARCH_WANT_MMU_NOTIFIER
1533int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end);
1534int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
1535int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
1536int kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
1537int kvm_cpu_has_injectable_intr(struct kvm_vcpu *v);
1538int kvm_cpu_has_interrupt(struct kvm_vcpu *vcpu);
1539int kvm_arch_interrupt_allowed(struct kvm_vcpu *vcpu);
1540int kvm_cpu_get_interrupt(struct kvm_vcpu *v);
1541void kvm_vcpu_reset(struct kvm_vcpu *vcpu, bool init_event);
1542void kvm_vcpu_reload_apic_access_page(struct kvm_vcpu *vcpu);
1543
1544int kvm_pv_send_ipi(struct kvm *kvm, unsigned long ipi_bitmap_low,
1545 unsigned long ipi_bitmap_high, u32 min,
1546 unsigned long icr, int op_64_bit);
1547
1548void kvm_define_shared_msr(unsigned index, u32 msr);
1549int kvm_set_shared_msr(unsigned index, u64 val, u64 mask);
1550
1551u64 kvm_scale_tsc(struct kvm_vcpu *vcpu, u64 tsc);
1552u64 kvm_read_l1_tsc(struct kvm_vcpu *vcpu, u64 host_tsc);
1553
1554unsigned long kvm_get_linear_rip(struct kvm_vcpu *vcpu);
1555bool kvm_is_linear_rip(struct kvm_vcpu *vcpu, unsigned long linear_rip);
1556
1557void kvm_make_mclock_inprogress_request(struct kvm *kvm);
1558void kvm_make_scan_ioapic_request(struct kvm *kvm);
1559
1560void kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu,
1561 struct kvm_async_pf *work);
1562void kvm_arch_async_page_present(struct kvm_vcpu *vcpu,
1563 struct kvm_async_pf *work);
1564void kvm_arch_async_page_ready(struct kvm_vcpu *vcpu,
1565 struct kvm_async_pf *work);
1566bool kvm_arch_can_inject_async_page_present(struct kvm_vcpu *vcpu);
1567extern bool kvm_find_async_pf_gfn(struct kvm_vcpu *vcpu, gfn_t gfn);
1568
1569int kvm_skip_emulated_instruction(struct kvm_vcpu *vcpu);
1570int kvm_complete_insn_gp(struct kvm_vcpu *vcpu, int err);
1571void __kvm_request_immediate_exit(struct kvm_vcpu *vcpu);
1572
1573int kvm_is_in_guest(void);
1574
1575int __x86_set_memory_region(struct kvm *kvm, int id, gpa_t gpa, u32 size);
1576int x86_set_memory_region(struct kvm *kvm, int id, gpa_t gpa, u32 size);
1577bool kvm_vcpu_is_reset_bsp(struct kvm_vcpu *vcpu);
1578bool kvm_vcpu_is_bsp(struct kvm_vcpu *vcpu);
1579
1580bool kvm_intr_is_single_vcpu(struct kvm *kvm, struct kvm_lapic_irq *irq,
1581 struct kvm_vcpu **dest_vcpu);
1582
1583void kvm_set_msi_irq(struct kvm *kvm, struct kvm_kernel_irq_routing_entry *e,
1584 struct kvm_lapic_irq *irq);
1585
1586static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu)
1587{
1588 if (kvm_x86_ops->vcpu_blocking)
1589 kvm_x86_ops->vcpu_blocking(vcpu);
1590}
1591
1592static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu)
1593{
1594 if (kvm_x86_ops->vcpu_unblocking)
1595 kvm_x86_ops->vcpu_unblocking(vcpu);
1596}
1597
1598static inline void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu) {}
1599
1600static inline int kvm_cpu_get_apicid(int mps_cpu)
1601{
1602#ifdef CONFIG_X86_LOCAL_APIC
1603 return default_cpu_present_to_apicid(mps_cpu);
1604#else
1605 WARN_ON_ONCE(1);
1606 return BAD_APICID;
1607#endif
1608}
1609
1610#define put_smstate(type, buf, offset, val) \
1611 *(type *)((buf) + (offset) - 0x7e00) = val
1612
1613#define GET_SMSTATE(type, buf, offset) \
1614 (*(type *)((buf) + (offset) - 0x7e00))
1615
1616#endif
1617