thermal: fix Mediatek thermal controller build
[linux/fpc-iii.git] / arch / x86 / include / asm / kvm_host.h
blobb7e394485a5f2a641bc466eef1bc210c348a936c
1 /*
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.
9 */
11 #ifndef _ASM_X86_KVM_HOST_H
12 #define _ASM_X86_KVM_HOST_H
14 #include <linux/types.h>
15 #include <linux/mm.h>
16 #include <linux/mmu_notifier.h>
17 #include <linux/tracepoint.h>
18 #include <linux/cpumask.h>
19 #include <linux/irq_work.h>
21 #include <linux/kvm.h>
22 #include <linux/kvm_para.h>
23 #include <linux/kvm_types.h>
24 #include <linux/perf_event.h>
25 #include <linux/pvclock_gtod.h>
26 #include <linux/clocksource.h>
27 #include <linux/irqbypass.h>
28 #include <linux/hyperv.h>
30 #include <asm/pvclock-abi.h>
31 #include <asm/desc.h>
32 #include <asm/mtrr.h>
33 #include <asm/msr-index.h>
34 #include <asm/asm.h>
35 #include <asm/kvm_page_track.h>
37 #define KVM_MAX_VCPUS 255
38 #define KVM_SOFT_MAX_VCPUS 160
39 #define KVM_USER_MEM_SLOTS 509
40 /* memory slots that are not exposed to userspace */
41 #define KVM_PRIVATE_MEM_SLOTS 3
42 #define KVM_MEM_SLOTS_NUM (KVM_USER_MEM_SLOTS + KVM_PRIVATE_MEM_SLOTS)
44 #define KVM_PIO_PAGE_OFFSET 1
45 #define KVM_COALESCED_MMIO_PAGE_OFFSET 2
46 #define KVM_HALT_POLL_NS_DEFAULT 400000
48 #define KVM_IRQCHIP_NUM_PINS KVM_IOAPIC_NUM_PINS
50 /* x86-specific vcpu->requests bit members */
51 #define KVM_REQ_MIGRATE_TIMER 8
52 #define KVM_REQ_REPORT_TPR_ACCESS 9
53 #define KVM_REQ_TRIPLE_FAULT 10
54 #define KVM_REQ_MMU_SYNC 11
55 #define KVM_REQ_CLOCK_UPDATE 12
56 #define KVM_REQ_DEACTIVATE_FPU 13
57 #define KVM_REQ_EVENT 14
58 #define KVM_REQ_APF_HALT 15
59 #define KVM_REQ_STEAL_UPDATE 16
60 #define KVM_REQ_NMI 17
61 #define KVM_REQ_PMU 18
62 #define KVM_REQ_PMI 19
63 #define KVM_REQ_SMI 20
64 #define KVM_REQ_MASTERCLOCK_UPDATE 21
65 #define KVM_REQ_MCLOCK_INPROGRESS 22
66 #define KVM_REQ_SCAN_IOAPIC 23
67 #define KVM_REQ_GLOBAL_CLOCK_UPDATE 24
68 #define KVM_REQ_APIC_PAGE_RELOAD 25
69 #define KVM_REQ_HV_CRASH 26
70 #define KVM_REQ_IOAPIC_EOI_EXIT 27
71 #define KVM_REQ_HV_RESET 28
72 #define KVM_REQ_HV_EXIT 29
73 #define KVM_REQ_HV_STIMER 30
75 #define CR0_RESERVED_BITS \
76 (~(unsigned long)(X86_CR0_PE | X86_CR0_MP | X86_CR0_EM | X86_CR0_TS \
77 | X86_CR0_ET | X86_CR0_NE | X86_CR0_WP | X86_CR0_AM \
78 | X86_CR0_NW | X86_CR0_CD | X86_CR0_PG))
80 #define CR3_L_MODE_RESERVED_BITS 0xFFFFFF0000000000ULL
81 #define CR3_PCID_INVD BIT_64(63)
82 #define CR4_RESERVED_BITS \
83 (~(unsigned long)(X86_CR4_VME | X86_CR4_PVI | X86_CR4_TSD | X86_CR4_DE\
84 | X86_CR4_PSE | X86_CR4_PAE | X86_CR4_MCE \
85 | X86_CR4_PGE | X86_CR4_PCE | X86_CR4_OSFXSR | X86_CR4_PCIDE \
86 | X86_CR4_OSXSAVE | X86_CR4_SMEP | X86_CR4_FSGSBASE \
87 | X86_CR4_OSXMMEXCPT | X86_CR4_VMXE | X86_CR4_SMAP \
88 | X86_CR4_PKE))
90 #define CR8_RESERVED_BITS (~(unsigned long)X86_CR8_TPR)
94 #define INVALID_PAGE (~(hpa_t)0)
95 #define VALID_PAGE(x) ((x) != INVALID_PAGE)
97 #define UNMAPPED_GVA (~(gpa_t)0)
99 /* KVM Hugepage definitions for x86 */
100 #define KVM_NR_PAGE_SIZES 3
101 #define KVM_HPAGE_GFN_SHIFT(x) (((x) - 1) * 9)
102 #define KVM_HPAGE_SHIFT(x) (PAGE_SHIFT + KVM_HPAGE_GFN_SHIFT(x))
103 #define KVM_HPAGE_SIZE(x) (1UL << KVM_HPAGE_SHIFT(x))
104 #define KVM_HPAGE_MASK(x) (~(KVM_HPAGE_SIZE(x) - 1))
105 #define KVM_PAGES_PER_HPAGE(x) (KVM_HPAGE_SIZE(x) / PAGE_SIZE)
107 static inline gfn_t gfn_to_index(gfn_t gfn, gfn_t base_gfn, int level)
109 /* KVM_HPAGE_GFN_SHIFT(PT_PAGE_TABLE_LEVEL) must be 0. */
110 return (gfn >> KVM_HPAGE_GFN_SHIFT(level)) -
111 (base_gfn >> KVM_HPAGE_GFN_SHIFT(level));
114 #define KVM_PERMILLE_MMU_PAGES 20
115 #define KVM_MIN_ALLOC_MMU_PAGES 64
116 #define KVM_MMU_HASH_SHIFT 10
117 #define KVM_NUM_MMU_PAGES (1 << KVM_MMU_HASH_SHIFT)
118 #define KVM_MIN_FREE_MMU_PAGES 5
119 #define KVM_REFILL_PAGES 25
120 #define KVM_MAX_CPUID_ENTRIES 80
121 #define KVM_NR_FIXED_MTRR_REGION 88
122 #define KVM_NR_VAR_MTRR 8
124 #define ASYNC_PF_PER_VCPU 64
126 enum kvm_reg {
127 VCPU_REGS_RAX = 0,
128 VCPU_REGS_RCX = 1,
129 VCPU_REGS_RDX = 2,
130 VCPU_REGS_RBX = 3,
131 VCPU_REGS_RSP = 4,
132 VCPU_REGS_RBP = 5,
133 VCPU_REGS_RSI = 6,
134 VCPU_REGS_RDI = 7,
135 #ifdef CONFIG_X86_64
136 VCPU_REGS_R8 = 8,
137 VCPU_REGS_R9 = 9,
138 VCPU_REGS_R10 = 10,
139 VCPU_REGS_R11 = 11,
140 VCPU_REGS_R12 = 12,
141 VCPU_REGS_R13 = 13,
142 VCPU_REGS_R14 = 14,
143 VCPU_REGS_R15 = 15,
144 #endif
145 VCPU_REGS_RIP,
146 NR_VCPU_REGS
149 enum kvm_reg_ex {
150 VCPU_EXREG_PDPTR = NR_VCPU_REGS,
151 VCPU_EXREG_CR3,
152 VCPU_EXREG_RFLAGS,
153 VCPU_EXREG_SEGMENTS,
156 enum {
157 VCPU_SREG_ES,
158 VCPU_SREG_CS,
159 VCPU_SREG_SS,
160 VCPU_SREG_DS,
161 VCPU_SREG_FS,
162 VCPU_SREG_GS,
163 VCPU_SREG_TR,
164 VCPU_SREG_LDTR,
167 #include <asm/kvm_emulate.h>
169 #define KVM_NR_MEM_OBJS 40
171 #define KVM_NR_DB_REGS 4
173 #define DR6_BD (1 << 13)
174 #define DR6_BS (1 << 14)
175 #define DR6_RTM (1 << 16)
176 #define DR6_FIXED_1 0xfffe0ff0
177 #define DR6_INIT 0xffff0ff0
178 #define DR6_VOLATILE 0x0001e00f
180 #define DR7_BP_EN_MASK 0x000000ff
181 #define DR7_GE (1 << 9)
182 #define DR7_GD (1 << 13)
183 #define DR7_FIXED_1 0x00000400
184 #define DR7_VOLATILE 0xffff2bff
186 #define PFERR_PRESENT_BIT 0
187 #define PFERR_WRITE_BIT 1
188 #define PFERR_USER_BIT 2
189 #define PFERR_RSVD_BIT 3
190 #define PFERR_FETCH_BIT 4
191 #define PFERR_PK_BIT 5
193 #define PFERR_PRESENT_MASK (1U << PFERR_PRESENT_BIT)
194 #define PFERR_WRITE_MASK (1U << PFERR_WRITE_BIT)
195 #define PFERR_USER_MASK (1U << PFERR_USER_BIT)
196 #define PFERR_RSVD_MASK (1U << PFERR_RSVD_BIT)
197 #define PFERR_FETCH_MASK (1U << PFERR_FETCH_BIT)
198 #define PFERR_PK_MASK (1U << PFERR_PK_BIT)
200 /* apic attention bits */
201 #define KVM_APIC_CHECK_VAPIC 0
203 * The following bit is set with PV-EOI, unset on EOI.
204 * We detect PV-EOI changes by guest by comparing
205 * this bit with PV-EOI in guest memory.
206 * See the implementation in apic_update_pv_eoi.
208 #define KVM_APIC_PV_EOI_PENDING 1
210 struct kvm_kernel_irq_routing_entry;
213 * We don't want allocation failures within the mmu code, so we preallocate
214 * enough memory for a single page fault in a cache.
216 struct kvm_mmu_memory_cache {
217 int nobjs;
218 void *objects[KVM_NR_MEM_OBJS];
222 * the pages used as guest page table on soft mmu are tracked by
223 * kvm_memory_slot.arch.gfn_track which is 16 bits, so the role bits used
224 * by indirect shadow page can not be more than 15 bits.
226 * Currently, we used 14 bits that are @level, @cr4_pae, @quadrant, @access,
227 * @nxe, @cr0_wp, @smep_andnot_wp and @smap_andnot_wp.
229 union kvm_mmu_page_role {
230 unsigned word;
231 struct {
232 unsigned level:4;
233 unsigned cr4_pae:1;
234 unsigned quadrant:2;
235 unsigned direct:1;
236 unsigned access:3;
237 unsigned invalid:1;
238 unsigned nxe:1;
239 unsigned cr0_wp:1;
240 unsigned smep_andnot_wp:1;
241 unsigned smap_andnot_wp:1;
242 unsigned :8;
245 * This is left at the top of the word so that
246 * kvm_memslots_for_spte_role can extract it with a
247 * simple shift. While there is room, give it a whole
248 * byte so it is also faster to load it from memory.
250 unsigned smm:8;
254 struct kvm_rmap_head {
255 unsigned long val;
258 struct kvm_mmu_page {
259 struct list_head link;
260 struct hlist_node hash_link;
263 * The following two entries are used to key the shadow page in the
264 * hash table.
266 gfn_t gfn;
267 union kvm_mmu_page_role role;
269 u64 *spt;
270 /* hold the gfn of each spte inside spt */
271 gfn_t *gfns;
272 bool unsync;
273 int root_count; /* Currently serving as active root */
274 unsigned int unsync_children;
275 struct kvm_rmap_head parent_ptes; /* rmap pointers to parent sptes */
277 /* The page is obsolete if mmu_valid_gen != kvm->arch.mmu_valid_gen. */
278 unsigned long mmu_valid_gen;
280 DECLARE_BITMAP(unsync_child_bitmap, 512);
282 #ifdef CONFIG_X86_32
284 * Used out of the mmu-lock to avoid reading spte values while an
285 * update is in progress; see the comments in __get_spte_lockless().
287 int clear_spte_count;
288 #endif
290 /* Number of writes since the last time traversal visited this page. */
291 atomic_t write_flooding_count;
294 struct kvm_pio_request {
295 unsigned long count;
296 int in;
297 int port;
298 int size;
301 struct rsvd_bits_validate {
302 u64 rsvd_bits_mask[2][4];
303 u64 bad_mt_xwr;
307 * x86 supports 3 paging modes (4-level 64-bit, 3-level 64-bit, and 2-level
308 * 32-bit). The kvm_mmu structure abstracts the details of the current mmu
309 * mode.
311 struct kvm_mmu {
312 void (*set_cr3)(struct kvm_vcpu *vcpu, unsigned long root);
313 unsigned long (*get_cr3)(struct kvm_vcpu *vcpu);
314 u64 (*get_pdptr)(struct kvm_vcpu *vcpu, int index);
315 int (*page_fault)(struct kvm_vcpu *vcpu, gva_t gva, u32 err,
316 bool prefault);
317 void (*inject_page_fault)(struct kvm_vcpu *vcpu,
318 struct x86_exception *fault);
319 gpa_t (*gva_to_gpa)(struct kvm_vcpu *vcpu, gva_t gva, u32 access,
320 struct x86_exception *exception);
321 gpa_t (*translate_gpa)(struct kvm_vcpu *vcpu, gpa_t gpa, u32 access,
322 struct x86_exception *exception);
323 int (*sync_page)(struct kvm_vcpu *vcpu,
324 struct kvm_mmu_page *sp);
325 void (*invlpg)(struct kvm_vcpu *vcpu, gva_t gva);
326 void (*update_pte)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp,
327 u64 *spte, const void *pte);
328 hpa_t root_hpa;
329 int root_level;
330 int shadow_root_level;
331 union kvm_mmu_page_role base_role;
332 bool direct_map;
335 * Bitmap; bit set = permission fault
336 * Byte index: page fault error code [4:1]
337 * Bit index: pte permissions in ACC_* format
339 u8 permissions[16];
342 * The pkru_mask indicates if protection key checks are needed. It
343 * consists of 16 domains indexed by page fault error code bits [4:1],
344 * with PFEC.RSVD replaced by ACC_USER_MASK from the page tables.
345 * Each domain has 2 bits which are ANDed with AD and WD from PKRU.
347 u32 pkru_mask;
349 u64 *pae_root;
350 u64 *lm_root;
353 * check zero bits on shadow page table entries, these
354 * bits include not only hardware reserved bits but also
355 * the bits spte never used.
357 struct rsvd_bits_validate shadow_zero_check;
359 struct rsvd_bits_validate guest_rsvd_check;
361 /* Can have large pages at levels 2..last_nonleaf_level-1. */
362 u8 last_nonleaf_level;
364 bool nx;
366 u64 pdptrs[4]; /* pae */
369 enum pmc_type {
370 KVM_PMC_GP = 0,
371 KVM_PMC_FIXED,
374 struct kvm_pmc {
375 enum pmc_type type;
376 u8 idx;
377 u64 counter;
378 u64 eventsel;
379 struct perf_event *perf_event;
380 struct kvm_vcpu *vcpu;
383 struct kvm_pmu {
384 unsigned nr_arch_gp_counters;
385 unsigned nr_arch_fixed_counters;
386 unsigned available_event_types;
387 u64 fixed_ctr_ctrl;
388 u64 global_ctrl;
389 u64 global_status;
390 u64 global_ovf_ctrl;
391 u64 counter_bitmask[2];
392 u64 global_ctrl_mask;
393 u64 reserved_bits;
394 u8 version;
395 struct kvm_pmc gp_counters[INTEL_PMC_MAX_GENERIC];
396 struct kvm_pmc fixed_counters[INTEL_PMC_MAX_FIXED];
397 struct irq_work irq_work;
398 u64 reprogram_pmi;
401 struct kvm_pmu_ops;
403 enum {
404 KVM_DEBUGREG_BP_ENABLED = 1,
405 KVM_DEBUGREG_WONT_EXIT = 2,
406 KVM_DEBUGREG_RELOAD = 4,
409 struct kvm_mtrr_range {
410 u64 base;
411 u64 mask;
412 struct list_head node;
415 struct kvm_mtrr {
416 struct kvm_mtrr_range var_ranges[KVM_NR_VAR_MTRR];
417 mtrr_type fixed_ranges[KVM_NR_FIXED_MTRR_REGION];
418 u64 deftype;
420 struct list_head head;
423 /* Hyper-V SynIC timer */
424 struct kvm_vcpu_hv_stimer {
425 struct hrtimer timer;
426 int index;
427 u64 config;
428 u64 count;
429 u64 exp_time;
430 struct hv_message msg;
431 bool msg_pending;
434 /* Hyper-V synthetic interrupt controller (SynIC)*/
435 struct kvm_vcpu_hv_synic {
436 u64 version;
437 u64 control;
438 u64 msg_page;
439 u64 evt_page;
440 atomic64_t sint[HV_SYNIC_SINT_COUNT];
441 atomic_t sint_to_gsi[HV_SYNIC_SINT_COUNT];
442 DECLARE_BITMAP(auto_eoi_bitmap, 256);
443 DECLARE_BITMAP(vec_bitmap, 256);
444 bool active;
447 /* Hyper-V per vcpu emulation context */
448 struct kvm_vcpu_hv {
449 u64 hv_vapic;
450 s64 runtime_offset;
451 struct kvm_vcpu_hv_synic synic;
452 struct kvm_hyperv_exit exit;
453 struct kvm_vcpu_hv_stimer stimer[HV_SYNIC_STIMER_COUNT];
454 DECLARE_BITMAP(stimer_pending_bitmap, HV_SYNIC_STIMER_COUNT);
457 struct kvm_vcpu_arch {
459 * rip and regs accesses must go through
460 * kvm_{register,rip}_{read,write} functions.
462 unsigned long regs[NR_VCPU_REGS];
463 u32 regs_avail;
464 u32 regs_dirty;
466 unsigned long cr0;
467 unsigned long cr0_guest_owned_bits;
468 unsigned long cr2;
469 unsigned long cr3;
470 unsigned long cr4;
471 unsigned long cr4_guest_owned_bits;
472 unsigned long cr8;
473 u32 hflags;
474 u64 efer;
475 u64 apic_base;
476 struct kvm_lapic *apic; /* kernel irqchip context */
477 bool apicv_active;
478 DECLARE_BITMAP(ioapic_handled_vectors, 256);
479 unsigned long apic_attention;
480 int32_t apic_arb_prio;
481 int mp_state;
482 u64 ia32_misc_enable_msr;
483 u64 smbase;
484 bool tpr_access_reporting;
485 u64 ia32_xss;
488 * Paging state of the vcpu
490 * If the vcpu runs in guest mode with two level paging this still saves
491 * the paging mode of the l1 guest. This context is always used to
492 * handle faults.
494 struct kvm_mmu mmu;
497 * Paging state of an L2 guest (used for nested npt)
499 * This context will save all necessary information to walk page tables
500 * of the an L2 guest. This context is only initialized for page table
501 * walking and not for faulting since we never handle l2 page faults on
502 * the host.
504 struct kvm_mmu nested_mmu;
507 * Pointer to the mmu context currently used for
508 * gva_to_gpa translations.
510 struct kvm_mmu *walk_mmu;
512 struct kvm_mmu_memory_cache mmu_pte_list_desc_cache;
513 struct kvm_mmu_memory_cache mmu_page_cache;
514 struct kvm_mmu_memory_cache mmu_page_header_cache;
516 struct fpu guest_fpu;
517 u64 xcr0;
518 u64 guest_supported_xcr0;
519 u32 guest_xstate_size;
521 struct kvm_pio_request pio;
522 void *pio_data;
524 u8 event_exit_inst_len;
526 struct kvm_queued_exception {
527 bool pending;
528 bool has_error_code;
529 bool reinject;
530 u8 nr;
531 u32 error_code;
532 } exception;
534 struct kvm_queued_interrupt {
535 bool pending;
536 bool soft;
537 u8 nr;
538 } interrupt;
540 int halt_request; /* real mode on Intel only */
542 int cpuid_nent;
543 struct kvm_cpuid_entry2 cpuid_entries[KVM_MAX_CPUID_ENTRIES];
545 int maxphyaddr;
547 /* emulate context */
549 struct x86_emulate_ctxt emulate_ctxt;
550 bool emulate_regs_need_sync_to_vcpu;
551 bool emulate_regs_need_sync_from_vcpu;
552 int (*complete_userspace_io)(struct kvm_vcpu *vcpu);
554 gpa_t time;
555 struct pvclock_vcpu_time_info hv_clock;
556 unsigned int hw_tsc_khz;
557 struct gfn_to_hva_cache pv_time;
558 bool pv_time_enabled;
559 /* set guest stopped flag in pvclock flags field */
560 bool pvclock_set_guest_stopped_request;
562 struct {
563 u64 msr_val;
564 u64 last_steal;
565 u64 accum_steal;
566 struct gfn_to_hva_cache stime;
567 struct kvm_steal_time steal;
568 } st;
570 u64 last_guest_tsc;
571 u64 last_host_tsc;
572 u64 tsc_offset_adjustment;
573 u64 this_tsc_nsec;
574 u64 this_tsc_write;
575 u64 this_tsc_generation;
576 bool tsc_catchup;
577 bool tsc_always_catchup;
578 s8 virtual_tsc_shift;
579 u32 virtual_tsc_mult;
580 u32 virtual_tsc_khz;
581 s64 ia32_tsc_adjust_msr;
582 u64 tsc_scaling_ratio;
584 atomic_t nmi_queued; /* unprocessed asynchronous NMIs */
585 unsigned nmi_pending; /* NMI queued after currently running handler */
586 bool nmi_injected; /* Trying to inject an NMI this entry */
587 bool smi_pending; /* SMI queued after currently running handler */
589 struct kvm_mtrr mtrr_state;
590 u64 pat;
592 unsigned switch_db_regs;
593 unsigned long db[KVM_NR_DB_REGS];
594 unsigned long dr6;
595 unsigned long dr7;
596 unsigned long eff_db[KVM_NR_DB_REGS];
597 unsigned long guest_debug_dr7;
599 u64 mcg_cap;
600 u64 mcg_status;
601 u64 mcg_ctl;
602 u64 *mce_banks;
604 /* Cache MMIO info */
605 u64 mmio_gva;
606 unsigned access;
607 gfn_t mmio_gfn;
608 u64 mmio_gen;
610 struct kvm_pmu pmu;
612 /* used for guest single stepping over the given code position */
613 unsigned long singlestep_rip;
615 struct kvm_vcpu_hv hyperv;
617 cpumask_var_t wbinvd_dirty_mask;
619 unsigned long last_retry_eip;
620 unsigned long last_retry_addr;
622 struct {
623 bool halted;
624 gfn_t gfns[roundup_pow_of_two(ASYNC_PF_PER_VCPU)];
625 struct gfn_to_hva_cache data;
626 u64 msr_val;
627 u32 id;
628 bool send_user_only;
629 } apf;
631 /* OSVW MSRs (AMD only) */
632 struct {
633 u64 length;
634 u64 status;
635 } osvw;
637 struct {
638 u64 msr_val;
639 struct gfn_to_hva_cache data;
640 } pv_eoi;
643 * Indicate whether the access faults on its page table in guest
644 * which is set when fix page fault and used to detect unhandeable
645 * instruction.
647 bool write_fault_to_shadow_pgtable;
649 /* set at EPT violation at this point */
650 unsigned long exit_qualification;
652 /* pv related host specific info */
653 struct {
654 bool pv_unhalted;
655 } pv;
657 int pending_ioapic_eoi;
658 int pending_external_vector;
661 struct kvm_lpage_info {
662 int disallow_lpage;
665 struct kvm_arch_memory_slot {
666 struct kvm_rmap_head *rmap[KVM_NR_PAGE_SIZES];
667 struct kvm_lpage_info *lpage_info[KVM_NR_PAGE_SIZES - 1];
668 unsigned short *gfn_track[KVM_PAGE_TRACK_MAX];
672 * We use as the mode the number of bits allocated in the LDR for the
673 * logical processor ID. It happens that these are all powers of two.
674 * This makes it is very easy to detect cases where the APICs are
675 * configured for multiple modes; in that case, we cannot use the map and
676 * hence cannot use kvm_irq_delivery_to_apic_fast either.
678 #define KVM_APIC_MODE_XAPIC_CLUSTER 4
679 #define KVM_APIC_MODE_XAPIC_FLAT 8
680 #define KVM_APIC_MODE_X2APIC 16
682 struct kvm_apic_map {
683 struct rcu_head rcu;
684 u8 mode;
685 struct kvm_lapic *phys_map[256];
686 /* first index is cluster id second is cpu id in a cluster */
687 struct kvm_lapic *logical_map[16][16];
690 /* Hyper-V emulation context */
691 struct kvm_hv {
692 u64 hv_guest_os_id;
693 u64 hv_hypercall;
694 u64 hv_tsc_page;
696 /* Hyper-v based guest crash (NT kernel bugcheck) parameters */
697 u64 hv_crash_param[HV_X64_MSR_CRASH_PARAMS];
698 u64 hv_crash_ctl;
701 struct kvm_arch {
702 unsigned int n_used_mmu_pages;
703 unsigned int n_requested_mmu_pages;
704 unsigned int n_max_mmu_pages;
705 unsigned int indirect_shadow_pages;
706 unsigned long mmu_valid_gen;
707 struct hlist_head mmu_page_hash[KVM_NUM_MMU_PAGES];
709 * Hash table of struct kvm_mmu_page.
711 struct list_head active_mmu_pages;
712 struct list_head zapped_obsolete_pages;
713 struct kvm_page_track_notifier_node mmu_sp_tracker;
714 struct kvm_page_track_notifier_head track_notifier_head;
716 struct list_head assigned_dev_head;
717 struct iommu_domain *iommu_domain;
718 bool iommu_noncoherent;
719 #define __KVM_HAVE_ARCH_NONCOHERENT_DMA
720 atomic_t noncoherent_dma_count;
721 #define __KVM_HAVE_ARCH_ASSIGNED_DEVICE
722 atomic_t assigned_device_count;
723 struct kvm_pic *vpic;
724 struct kvm_ioapic *vioapic;
725 struct kvm_pit *vpit;
726 atomic_t vapics_in_nmi_mode;
727 struct mutex apic_map_lock;
728 struct kvm_apic_map *apic_map;
730 unsigned int tss_addr;
731 bool apic_access_page_done;
733 gpa_t wall_clock;
735 bool ept_identity_pagetable_done;
736 gpa_t ept_identity_map_addr;
738 unsigned long irq_sources_bitmap;
739 s64 kvmclock_offset;
740 raw_spinlock_t tsc_write_lock;
741 u64 last_tsc_nsec;
742 u64 last_tsc_write;
743 u32 last_tsc_khz;
744 u64 cur_tsc_nsec;
745 u64 cur_tsc_write;
746 u64 cur_tsc_offset;
747 u64 cur_tsc_generation;
748 int nr_vcpus_matched_tsc;
750 spinlock_t pvclock_gtod_sync_lock;
751 bool use_master_clock;
752 u64 master_kernel_ns;
753 cycle_t master_cycle_now;
754 struct delayed_work kvmclock_update_work;
755 struct delayed_work kvmclock_sync_work;
757 struct kvm_xen_hvm_config xen_hvm_config;
759 /* reads protected by irq_srcu, writes by irq_lock */
760 struct hlist_head mask_notifier_list;
762 struct kvm_hv hyperv;
764 #ifdef CONFIG_KVM_MMU_AUDIT
765 int audit_point;
766 #endif
768 bool boot_vcpu_runs_old_kvmclock;
769 u32 bsp_vcpu_id;
771 u64 disabled_quirks;
773 bool irqchip_split;
774 u8 nr_reserved_ioapic_pins;
776 bool disabled_lapic_found;
779 struct kvm_vm_stat {
780 u32 mmu_shadow_zapped;
781 u32 mmu_pte_write;
782 u32 mmu_pte_updated;
783 u32 mmu_pde_zapped;
784 u32 mmu_flooded;
785 u32 mmu_recycled;
786 u32 mmu_cache_miss;
787 u32 mmu_unsync;
788 u32 remote_tlb_flush;
789 u32 lpages;
792 struct kvm_vcpu_stat {
793 u32 pf_fixed;
794 u32 pf_guest;
795 u32 tlb_flush;
796 u32 invlpg;
798 u32 exits;
799 u32 io_exits;
800 u32 mmio_exits;
801 u32 signal_exits;
802 u32 irq_window_exits;
803 u32 nmi_window_exits;
804 u32 halt_exits;
805 u32 halt_successful_poll;
806 u32 halt_attempted_poll;
807 u32 halt_wakeup;
808 u32 request_irq_exits;
809 u32 irq_exits;
810 u32 host_state_reload;
811 u32 efer_reload;
812 u32 fpu_reload;
813 u32 insn_emulation;
814 u32 insn_emulation_fail;
815 u32 hypercalls;
816 u32 irq_injections;
817 u32 nmi_injections;
820 struct x86_instruction_info;
822 struct msr_data {
823 bool host_initiated;
824 u32 index;
825 u64 data;
828 struct kvm_lapic_irq {
829 u32 vector;
830 u16 delivery_mode;
831 u16 dest_mode;
832 bool level;
833 u16 trig_mode;
834 u32 shorthand;
835 u32 dest_id;
836 bool msi_redir_hint;
839 struct kvm_x86_ops {
840 int (*cpu_has_kvm_support)(void); /* __init */
841 int (*disabled_by_bios)(void); /* __init */
842 int (*hardware_enable)(void);
843 void (*hardware_disable)(void);
844 void (*check_processor_compatibility)(void *rtn);
845 int (*hardware_setup)(void); /* __init */
846 void (*hardware_unsetup)(void); /* __exit */
847 bool (*cpu_has_accelerated_tpr)(void);
848 bool (*cpu_has_high_real_mode_segbase)(void);
849 void (*cpuid_update)(struct kvm_vcpu *vcpu);
851 /* Create, but do not attach this VCPU */
852 struct kvm_vcpu *(*vcpu_create)(struct kvm *kvm, unsigned id);
853 void (*vcpu_free)(struct kvm_vcpu *vcpu);
854 void (*vcpu_reset)(struct kvm_vcpu *vcpu, bool init_event);
856 void (*prepare_guest_switch)(struct kvm_vcpu *vcpu);
857 void (*vcpu_load)(struct kvm_vcpu *vcpu, int cpu);
858 void (*vcpu_put)(struct kvm_vcpu *vcpu);
860 void (*update_bp_intercept)(struct kvm_vcpu *vcpu);
861 int (*get_msr)(struct kvm_vcpu *vcpu, struct msr_data *msr);
862 int (*set_msr)(struct kvm_vcpu *vcpu, struct msr_data *msr);
863 u64 (*get_segment_base)(struct kvm_vcpu *vcpu, int seg);
864 void (*get_segment)(struct kvm_vcpu *vcpu,
865 struct kvm_segment *var, int seg);
866 int (*get_cpl)(struct kvm_vcpu *vcpu);
867 void (*set_segment)(struct kvm_vcpu *vcpu,
868 struct kvm_segment *var, int seg);
869 void (*get_cs_db_l_bits)(struct kvm_vcpu *vcpu, int *db, int *l);
870 void (*decache_cr0_guest_bits)(struct kvm_vcpu *vcpu);
871 void (*decache_cr3)(struct kvm_vcpu *vcpu);
872 void (*decache_cr4_guest_bits)(struct kvm_vcpu *vcpu);
873 void (*set_cr0)(struct kvm_vcpu *vcpu, unsigned long cr0);
874 void (*set_cr3)(struct kvm_vcpu *vcpu, unsigned long cr3);
875 int (*set_cr4)(struct kvm_vcpu *vcpu, unsigned long cr4);
876 void (*set_efer)(struct kvm_vcpu *vcpu, u64 efer);
877 void (*get_idt)(struct kvm_vcpu *vcpu, struct desc_ptr *dt);
878 void (*set_idt)(struct kvm_vcpu *vcpu, struct desc_ptr *dt);
879 void (*get_gdt)(struct kvm_vcpu *vcpu, struct desc_ptr *dt);
880 void (*set_gdt)(struct kvm_vcpu *vcpu, struct desc_ptr *dt);
881 u64 (*get_dr6)(struct kvm_vcpu *vcpu);
882 void (*set_dr6)(struct kvm_vcpu *vcpu, unsigned long value);
883 void (*sync_dirty_debug_regs)(struct kvm_vcpu *vcpu);
884 void (*set_dr7)(struct kvm_vcpu *vcpu, unsigned long value);
885 void (*cache_reg)(struct kvm_vcpu *vcpu, enum kvm_reg reg);
886 unsigned long (*get_rflags)(struct kvm_vcpu *vcpu);
887 void (*set_rflags)(struct kvm_vcpu *vcpu, unsigned long rflags);
888 u32 (*get_pkru)(struct kvm_vcpu *vcpu);
889 void (*fpu_activate)(struct kvm_vcpu *vcpu);
890 void (*fpu_deactivate)(struct kvm_vcpu *vcpu);
892 void (*tlb_flush)(struct kvm_vcpu *vcpu);
894 void (*run)(struct kvm_vcpu *vcpu);
895 int (*handle_exit)(struct kvm_vcpu *vcpu);
896 void (*skip_emulated_instruction)(struct kvm_vcpu *vcpu);
897 void (*set_interrupt_shadow)(struct kvm_vcpu *vcpu, int mask);
898 u32 (*get_interrupt_shadow)(struct kvm_vcpu *vcpu);
899 void (*patch_hypercall)(struct kvm_vcpu *vcpu,
900 unsigned char *hypercall_addr);
901 void (*set_irq)(struct kvm_vcpu *vcpu);
902 void (*set_nmi)(struct kvm_vcpu *vcpu);
903 void (*queue_exception)(struct kvm_vcpu *vcpu, unsigned nr,
904 bool has_error_code, u32 error_code,
905 bool reinject);
906 void (*cancel_injection)(struct kvm_vcpu *vcpu);
907 int (*interrupt_allowed)(struct kvm_vcpu *vcpu);
908 int (*nmi_allowed)(struct kvm_vcpu *vcpu);
909 bool (*get_nmi_mask)(struct kvm_vcpu *vcpu);
910 void (*set_nmi_mask)(struct kvm_vcpu *vcpu, bool masked);
911 void (*enable_nmi_window)(struct kvm_vcpu *vcpu);
912 void (*enable_irq_window)(struct kvm_vcpu *vcpu);
913 void (*update_cr8_intercept)(struct kvm_vcpu *vcpu, int tpr, int irr);
914 bool (*get_enable_apicv)(void);
915 void (*refresh_apicv_exec_ctrl)(struct kvm_vcpu *vcpu);
916 void (*hwapic_irr_update)(struct kvm_vcpu *vcpu, int max_irr);
917 void (*hwapic_isr_update)(struct kvm *kvm, int isr);
918 void (*load_eoi_exitmap)(struct kvm_vcpu *vcpu, u64 *eoi_exit_bitmap);
919 void (*set_virtual_x2apic_mode)(struct kvm_vcpu *vcpu, bool set);
920 void (*set_apic_access_page_addr)(struct kvm_vcpu *vcpu, hpa_t hpa);
921 void (*deliver_posted_interrupt)(struct kvm_vcpu *vcpu, int vector);
922 void (*sync_pir_to_irr)(struct kvm_vcpu *vcpu);
923 int (*set_tss_addr)(struct kvm *kvm, unsigned int addr);
924 int (*get_tdp_level)(void);
925 u64 (*get_mt_mask)(struct kvm_vcpu *vcpu, gfn_t gfn, bool is_mmio);
926 int (*get_lpage_level)(void);
927 bool (*rdtscp_supported)(void);
928 bool (*invpcid_supported)(void);
929 void (*adjust_tsc_offset_guest)(struct kvm_vcpu *vcpu, s64 adjustment);
931 void (*set_tdp_cr3)(struct kvm_vcpu *vcpu, unsigned long cr3);
933 void (*set_supported_cpuid)(u32 func, struct kvm_cpuid_entry2 *entry);
935 bool (*has_wbinvd_exit)(void);
937 u64 (*read_tsc_offset)(struct kvm_vcpu *vcpu);
938 void (*write_tsc_offset)(struct kvm_vcpu *vcpu, u64 offset);
940 u64 (*read_l1_tsc)(struct kvm_vcpu *vcpu, u64 host_tsc);
942 void (*get_exit_info)(struct kvm_vcpu *vcpu, u64 *info1, u64 *info2);
944 int (*check_intercept)(struct kvm_vcpu *vcpu,
945 struct x86_instruction_info *info,
946 enum x86_intercept_stage stage);
947 void (*handle_external_intr)(struct kvm_vcpu *vcpu);
948 bool (*mpx_supported)(void);
949 bool (*xsaves_supported)(void);
951 int (*check_nested_events)(struct kvm_vcpu *vcpu, bool external_intr);
953 void (*sched_in)(struct kvm_vcpu *kvm, int cpu);
956 * Arch-specific dirty logging hooks. These hooks are only supposed to
957 * be valid if the specific arch has hardware-accelerated dirty logging
958 * mechanism. Currently only for PML on VMX.
960 * - slot_enable_log_dirty:
961 * called when enabling log dirty mode for the slot.
962 * - slot_disable_log_dirty:
963 * called when disabling log dirty mode for the slot.
964 * also called when slot is created with log dirty disabled.
965 * - flush_log_dirty:
966 * called before reporting dirty_bitmap to userspace.
967 * - enable_log_dirty_pt_masked:
968 * called when reenabling log dirty for the GFNs in the mask after
969 * corresponding bits are cleared in slot->dirty_bitmap.
971 void (*slot_enable_log_dirty)(struct kvm *kvm,
972 struct kvm_memory_slot *slot);
973 void (*slot_disable_log_dirty)(struct kvm *kvm,
974 struct kvm_memory_slot *slot);
975 void (*flush_log_dirty)(struct kvm *kvm);
976 void (*enable_log_dirty_pt_masked)(struct kvm *kvm,
977 struct kvm_memory_slot *slot,
978 gfn_t offset, unsigned long mask);
979 /* pmu operations of sub-arch */
980 const struct kvm_pmu_ops *pmu_ops;
983 * Architecture specific hooks for vCPU blocking due to
984 * HLT instruction.
985 * Returns for .pre_block():
986 * - 0 means continue to block the vCPU.
987 * - 1 means we cannot block the vCPU since some event
988 * happens during this period, such as, 'ON' bit in
989 * posted-interrupts descriptor is set.
991 int (*pre_block)(struct kvm_vcpu *vcpu);
992 void (*post_block)(struct kvm_vcpu *vcpu);
993 int (*update_pi_irte)(struct kvm *kvm, unsigned int host_irq,
994 uint32_t guest_irq, bool set);
997 struct kvm_arch_async_pf {
998 u32 token;
999 gfn_t gfn;
1000 unsigned long cr3;
1001 bool direct_map;
1004 extern struct kvm_x86_ops *kvm_x86_ops;
1006 int kvm_mmu_module_init(void);
1007 void kvm_mmu_module_exit(void);
1009 void kvm_mmu_destroy(struct kvm_vcpu *vcpu);
1010 int kvm_mmu_create(struct kvm_vcpu *vcpu);
1011 void kvm_mmu_setup(struct kvm_vcpu *vcpu);
1012 void kvm_mmu_init_vm(struct kvm *kvm);
1013 void kvm_mmu_uninit_vm(struct kvm *kvm);
1014 void kvm_mmu_set_mask_ptes(u64 user_mask, u64 accessed_mask,
1015 u64 dirty_mask, u64 nx_mask, u64 x_mask);
1017 void kvm_mmu_reset_context(struct kvm_vcpu *vcpu);
1018 void kvm_mmu_slot_remove_write_access(struct kvm *kvm,
1019 struct kvm_memory_slot *memslot);
1020 void kvm_mmu_zap_collapsible_sptes(struct kvm *kvm,
1021 const struct kvm_memory_slot *memslot);
1022 void kvm_mmu_slot_leaf_clear_dirty(struct kvm *kvm,
1023 struct kvm_memory_slot *memslot);
1024 void kvm_mmu_slot_largepage_remove_write_access(struct kvm *kvm,
1025 struct kvm_memory_slot *memslot);
1026 void kvm_mmu_slot_set_dirty(struct kvm *kvm,
1027 struct kvm_memory_slot *memslot);
1028 void kvm_mmu_clear_dirty_pt_masked(struct kvm *kvm,
1029 struct kvm_memory_slot *slot,
1030 gfn_t gfn_offset, unsigned long mask);
1031 void kvm_mmu_zap_all(struct kvm *kvm);
1032 void kvm_mmu_invalidate_mmio_sptes(struct kvm *kvm, struct kvm_memslots *slots);
1033 unsigned int kvm_mmu_calculate_mmu_pages(struct kvm *kvm);
1034 void kvm_mmu_change_mmu_pages(struct kvm *kvm, unsigned int kvm_nr_mmu_pages);
1036 int load_pdptrs(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu, unsigned long cr3);
1038 int emulator_write_phys(struct kvm_vcpu *vcpu, gpa_t gpa,
1039 const void *val, int bytes);
1041 struct kvm_irq_mask_notifier {
1042 void (*func)(struct kvm_irq_mask_notifier *kimn, bool masked);
1043 int irq;
1044 struct hlist_node link;
1047 void kvm_register_irq_mask_notifier(struct kvm *kvm, int irq,
1048 struct kvm_irq_mask_notifier *kimn);
1049 void kvm_unregister_irq_mask_notifier(struct kvm *kvm, int irq,
1050 struct kvm_irq_mask_notifier *kimn);
1051 void kvm_fire_mask_notifiers(struct kvm *kvm, unsigned irqchip, unsigned pin,
1052 bool mask);
1054 extern bool tdp_enabled;
1056 u64 vcpu_tsc_khz(struct kvm_vcpu *vcpu);
1058 /* control of guest tsc rate supported? */
1059 extern bool kvm_has_tsc_control;
1060 /* maximum supported tsc_khz for guests */
1061 extern u32 kvm_max_guest_tsc_khz;
1062 /* number of bits of the fractional part of the TSC scaling ratio */
1063 extern u8 kvm_tsc_scaling_ratio_frac_bits;
1064 /* maximum allowed value of TSC scaling ratio */
1065 extern u64 kvm_max_tsc_scaling_ratio;
1067 enum emulation_result {
1068 EMULATE_DONE, /* no further processing */
1069 EMULATE_USER_EXIT, /* kvm_run ready for userspace exit */
1070 EMULATE_FAIL, /* can't emulate this instruction */
1073 #define EMULTYPE_NO_DECODE (1 << 0)
1074 #define EMULTYPE_TRAP_UD (1 << 1)
1075 #define EMULTYPE_SKIP (1 << 2)
1076 #define EMULTYPE_RETRY (1 << 3)
1077 #define EMULTYPE_NO_REEXECUTE (1 << 4)
1078 int x86_emulate_instruction(struct kvm_vcpu *vcpu, unsigned long cr2,
1079 int emulation_type, void *insn, int insn_len);
1081 static inline int emulate_instruction(struct kvm_vcpu *vcpu,
1082 int emulation_type)
1084 return x86_emulate_instruction(vcpu, 0, emulation_type, NULL, 0);
1087 void kvm_enable_efer_bits(u64);
1088 bool kvm_valid_efer(struct kvm_vcpu *vcpu, u64 efer);
1089 int kvm_get_msr(struct kvm_vcpu *vcpu, struct msr_data *msr);
1090 int kvm_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr);
1092 struct x86_emulate_ctxt;
1094 int kvm_fast_pio_out(struct kvm_vcpu *vcpu, int size, unsigned short port);
1095 void kvm_emulate_cpuid(struct kvm_vcpu *vcpu);
1096 int kvm_emulate_halt(struct kvm_vcpu *vcpu);
1097 int kvm_vcpu_halt(struct kvm_vcpu *vcpu);
1098 int kvm_emulate_wbinvd(struct kvm_vcpu *vcpu);
1100 void kvm_get_segment(struct kvm_vcpu *vcpu, struct kvm_segment *var, int seg);
1101 int kvm_load_segment_descriptor(struct kvm_vcpu *vcpu, u16 selector, int seg);
1102 void kvm_vcpu_deliver_sipi_vector(struct kvm_vcpu *vcpu, u8 vector);
1104 int kvm_task_switch(struct kvm_vcpu *vcpu, u16 tss_selector, int idt_index,
1105 int reason, bool has_error_code, u32 error_code);
1107 int kvm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0);
1108 int kvm_set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3);
1109 int kvm_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4);
1110 int kvm_set_cr8(struct kvm_vcpu *vcpu, unsigned long cr8);
1111 int kvm_set_dr(struct kvm_vcpu *vcpu, int dr, unsigned long val);
1112 int kvm_get_dr(struct kvm_vcpu *vcpu, int dr, unsigned long *val);
1113 unsigned long kvm_get_cr8(struct kvm_vcpu *vcpu);
1114 void kvm_lmsw(struct kvm_vcpu *vcpu, unsigned long msw);
1115 void kvm_get_cs_db_l_bits(struct kvm_vcpu *vcpu, int *db, int *l);
1116 int kvm_set_xcr(struct kvm_vcpu *vcpu, u32 index, u64 xcr);
1118 int kvm_get_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr);
1119 int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr);
1121 unsigned long kvm_get_rflags(struct kvm_vcpu *vcpu);
1122 void kvm_set_rflags(struct kvm_vcpu *vcpu, unsigned long rflags);
1123 bool kvm_rdpmc(struct kvm_vcpu *vcpu);
1125 void kvm_queue_exception(struct kvm_vcpu *vcpu, unsigned nr);
1126 void kvm_queue_exception_e(struct kvm_vcpu *vcpu, unsigned nr, u32 error_code);
1127 void kvm_requeue_exception(struct kvm_vcpu *vcpu, unsigned nr);
1128 void kvm_requeue_exception_e(struct kvm_vcpu *vcpu, unsigned nr, u32 error_code);
1129 void kvm_inject_page_fault(struct kvm_vcpu *vcpu, struct x86_exception *fault);
1130 int kvm_read_guest_page_mmu(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu,
1131 gfn_t gfn, void *data, int offset, int len,
1132 u32 access);
1133 bool kvm_require_cpl(struct kvm_vcpu *vcpu, int required_cpl);
1134 bool kvm_require_dr(struct kvm_vcpu *vcpu, int dr);
1136 static inline int __kvm_irq_line_state(unsigned long *irq_state,
1137 int irq_source_id, int level)
1139 /* Logical OR for level trig interrupt */
1140 if (level)
1141 __set_bit(irq_source_id, irq_state);
1142 else
1143 __clear_bit(irq_source_id, irq_state);
1145 return !!(*irq_state);
1148 int kvm_pic_set_irq(struct kvm_pic *pic, int irq, int irq_source_id, int level);
1149 void kvm_pic_clear_all(struct kvm_pic *pic, int irq_source_id);
1151 void kvm_inject_nmi(struct kvm_vcpu *vcpu);
1153 int kvm_mmu_unprotect_page(struct kvm *kvm, gfn_t gfn);
1154 int kvm_mmu_unprotect_page_virt(struct kvm_vcpu *vcpu, gva_t gva);
1155 void __kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu);
1156 int kvm_mmu_load(struct kvm_vcpu *vcpu);
1157 void kvm_mmu_unload(struct kvm_vcpu *vcpu);
1158 void kvm_mmu_sync_roots(struct kvm_vcpu *vcpu);
1159 gpa_t translate_nested_gpa(struct kvm_vcpu *vcpu, gpa_t gpa, u32 access,
1160 struct x86_exception *exception);
1161 gpa_t kvm_mmu_gva_to_gpa_read(struct kvm_vcpu *vcpu, gva_t gva,
1162 struct x86_exception *exception);
1163 gpa_t kvm_mmu_gva_to_gpa_fetch(struct kvm_vcpu *vcpu, gva_t gva,
1164 struct x86_exception *exception);
1165 gpa_t kvm_mmu_gva_to_gpa_write(struct kvm_vcpu *vcpu, gva_t gva,
1166 struct x86_exception *exception);
1167 gpa_t kvm_mmu_gva_to_gpa_system(struct kvm_vcpu *vcpu, gva_t gva,
1168 struct x86_exception *exception);
1170 void kvm_vcpu_deactivate_apicv(struct kvm_vcpu *vcpu);
1172 int kvm_emulate_hypercall(struct kvm_vcpu *vcpu);
1174 int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t gva, u32 error_code,
1175 void *insn, int insn_len);
1176 void kvm_mmu_invlpg(struct kvm_vcpu *vcpu, gva_t gva);
1177 void kvm_mmu_new_cr3(struct kvm_vcpu *vcpu);
1179 void kvm_enable_tdp(void);
1180 void kvm_disable_tdp(void);
1182 static inline gpa_t translate_gpa(struct kvm_vcpu *vcpu, gpa_t gpa, u32 access,
1183 struct x86_exception *exception)
1185 return gpa;
1188 static inline struct kvm_mmu_page *page_header(hpa_t shadow_page)
1190 struct page *page = pfn_to_page(shadow_page >> PAGE_SHIFT);
1192 return (struct kvm_mmu_page *)page_private(page);
1195 static inline u16 kvm_read_ldt(void)
1197 u16 ldt;
1198 asm("sldt %0" : "=g"(ldt));
1199 return ldt;
1202 static inline void kvm_load_ldt(u16 sel)
1204 asm("lldt %0" : : "rm"(sel));
1207 #ifdef CONFIG_X86_64
1208 static inline unsigned long read_msr(unsigned long msr)
1210 u64 value;
1212 rdmsrl(msr, value);
1213 return value;
1215 #endif
1217 static inline u32 get_rdx_init_val(void)
1219 return 0x600; /* P6 family */
1222 static inline void kvm_inject_gp(struct kvm_vcpu *vcpu, u32 error_code)
1224 kvm_queue_exception_e(vcpu, GP_VECTOR, error_code);
1227 static inline u64 get_canonical(u64 la)
1229 return ((int64_t)la << 16) >> 16;
1232 static inline bool is_noncanonical_address(u64 la)
1234 #ifdef CONFIG_X86_64
1235 return get_canonical(la) != la;
1236 #else
1237 return false;
1238 #endif
1241 #define TSS_IOPB_BASE_OFFSET 0x66
1242 #define TSS_BASE_SIZE 0x68
1243 #define TSS_IOPB_SIZE (65536 / 8)
1244 #define TSS_REDIRECTION_SIZE (256 / 8)
1245 #define RMODE_TSS_SIZE \
1246 (TSS_BASE_SIZE + TSS_REDIRECTION_SIZE + TSS_IOPB_SIZE + 1)
1248 enum {
1249 TASK_SWITCH_CALL = 0,
1250 TASK_SWITCH_IRET = 1,
1251 TASK_SWITCH_JMP = 2,
1252 TASK_SWITCH_GATE = 3,
1255 #define HF_GIF_MASK (1 << 0)
1256 #define HF_HIF_MASK (1 << 1)
1257 #define HF_VINTR_MASK (1 << 2)
1258 #define HF_NMI_MASK (1 << 3)
1259 #define HF_IRET_MASK (1 << 4)
1260 #define HF_GUEST_MASK (1 << 5) /* VCPU is in guest-mode */
1261 #define HF_SMM_MASK (1 << 6)
1262 #define HF_SMM_INSIDE_NMI_MASK (1 << 7)
1264 #define __KVM_VCPU_MULTIPLE_ADDRESS_SPACE
1265 #define KVM_ADDRESS_SPACE_NUM 2
1267 #define kvm_arch_vcpu_memslots_id(vcpu) ((vcpu)->arch.hflags & HF_SMM_MASK ? 1 : 0)
1268 #define kvm_memslots_for_spte_role(kvm, role) __kvm_memslots(kvm, (role).smm)
1271 * Hardware virtualization extension instructions may fault if a
1272 * reboot turns off virtualization while processes are running.
1273 * Trap the fault and ignore the instruction if that happens.
1275 asmlinkage void kvm_spurious_fault(void);
1277 #define ____kvm_handle_fault_on_reboot(insn, cleanup_insn) \
1278 "666: " insn "\n\t" \
1279 "668: \n\t" \
1280 ".pushsection .fixup, \"ax\" \n" \
1281 "667: \n\t" \
1282 cleanup_insn "\n\t" \
1283 "cmpb $0, kvm_rebooting \n\t" \
1284 "jne 668b \n\t" \
1285 __ASM_SIZE(push) " $666b \n\t" \
1286 "call kvm_spurious_fault \n\t" \
1287 ".popsection \n\t" \
1288 _ASM_EXTABLE(666b, 667b)
1290 #define __kvm_handle_fault_on_reboot(insn) \
1291 ____kvm_handle_fault_on_reboot(insn, "")
1293 #define KVM_ARCH_WANT_MMU_NOTIFIER
1294 int kvm_unmap_hva(struct kvm *kvm, unsigned long hva);
1295 int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end);
1296 int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
1297 int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
1298 void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
1299 int kvm_cpu_has_injectable_intr(struct kvm_vcpu *v);
1300 int kvm_cpu_has_interrupt(struct kvm_vcpu *vcpu);
1301 int kvm_arch_interrupt_allowed(struct kvm_vcpu *vcpu);
1302 int kvm_cpu_get_interrupt(struct kvm_vcpu *v);
1303 void kvm_vcpu_reset(struct kvm_vcpu *vcpu, bool init_event);
1304 void kvm_vcpu_reload_apic_access_page(struct kvm_vcpu *vcpu);
1305 void kvm_arch_mmu_notifier_invalidate_page(struct kvm *kvm,
1306 unsigned long address);
1308 void kvm_define_shared_msr(unsigned index, u32 msr);
1309 int kvm_set_shared_msr(unsigned index, u64 val, u64 mask);
1311 u64 kvm_scale_tsc(struct kvm_vcpu *vcpu, u64 tsc);
1312 u64 kvm_read_l1_tsc(struct kvm_vcpu *vcpu, u64 host_tsc);
1314 unsigned long kvm_get_linear_rip(struct kvm_vcpu *vcpu);
1315 bool kvm_is_linear_rip(struct kvm_vcpu *vcpu, unsigned long linear_rip);
1317 void kvm_make_mclock_inprogress_request(struct kvm *kvm);
1318 void kvm_make_scan_ioapic_request(struct kvm *kvm);
1320 void kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu,
1321 struct kvm_async_pf *work);
1322 void kvm_arch_async_page_present(struct kvm_vcpu *vcpu,
1323 struct kvm_async_pf *work);
1324 void kvm_arch_async_page_ready(struct kvm_vcpu *vcpu,
1325 struct kvm_async_pf *work);
1326 bool kvm_arch_can_inject_async_page_present(struct kvm_vcpu *vcpu);
1327 extern bool kvm_find_async_pf_gfn(struct kvm_vcpu *vcpu, gfn_t gfn);
1329 void kvm_complete_insn_gp(struct kvm_vcpu *vcpu, int err);
1331 int kvm_is_in_guest(void);
1333 int __x86_set_memory_region(struct kvm *kvm, int id, gpa_t gpa, u32 size);
1334 int x86_set_memory_region(struct kvm *kvm, int id, gpa_t gpa, u32 size);
1335 bool kvm_vcpu_is_reset_bsp(struct kvm_vcpu *vcpu);
1336 bool kvm_vcpu_is_bsp(struct kvm_vcpu *vcpu);
1338 bool kvm_intr_is_single_vcpu(struct kvm *kvm, struct kvm_lapic_irq *irq,
1339 struct kvm_vcpu **dest_vcpu);
1341 void kvm_set_msi_irq(struct kvm_kernel_irq_routing_entry *e,
1342 struct kvm_lapic_irq *irq);
1344 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
1345 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
1347 #endif /* _ASM_X86_KVM_HOST_H */