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Commit | Line | Data |
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a656c8ef | 1 | /* |
043405e1 CO |
2 | * Kernel-based Virtual Machine driver for Linux |
3 | * | |
4 | * This header defines architecture specific interfaces, x86 version | |
5 | * | |
6 | * This work is licensed under the terms of the GNU GPL, version 2. See | |
7 | * the COPYING file in the top-level directory. | |
8 | * | |
9 | */ | |
10 | ||
1965aae3 PA |
11 | #ifndef _ASM_X86_KVM_HOST_H |
12 | #define _ASM_X86_KVM_HOST_H | |
043405e1 | 13 | |
34c16eec ZX |
14 | #include <linux/types.h> |
15 | #include <linux/mm.h> | |
e930bffe | 16 | #include <linux/mmu_notifier.h> |
229456fc | 17 | #include <linux/tracepoint.h> |
f5f48ee1 | 18 | #include <linux/cpumask.h> |
34c16eec ZX |
19 | |
20 | #include <linux/kvm.h> | |
21 | #include <linux/kvm_para.h> | |
edf88417 | 22 | #include <linux/kvm_types.h> |
34c16eec | 23 | |
50d0a0f9 | 24 | #include <asm/pvclock-abi.h> |
e01a1b57 | 25 | #include <asm/desc.h> |
0bed3b56 | 26 | #include <asm/mtrr.h> |
9962d032 | 27 | #include <asm/msr-index.h> |
e01a1b57 | 28 | |
0680fe52 | 29 | #define KVM_MAX_VCPUS 64 |
69a9f69b AK |
30 | #define KVM_MEMORY_SLOTS 32 |
31 | /* memory slots that does not exposed to userspace */ | |
32 | #define KVM_PRIVATE_MEM_SLOTS 4 | |
cef4dea0 | 33 | #define KVM_MMIO_SIZE 16 |
69a9f69b AK |
34 | |
35 | #define KVM_PIO_PAGE_OFFSET 1 | |
542472b5 | 36 | #define KVM_COALESCED_MMIO_PAGE_OFFSET 2 |
69a9f69b | 37 | |
cfec82cb JR |
38 | #define CR0_RESERVED_BITS \ |
39 | (~(unsigned long)(X86_CR0_PE | X86_CR0_MP | X86_CR0_EM | X86_CR0_TS \ | |
40 | | X86_CR0_ET | X86_CR0_NE | X86_CR0_WP | X86_CR0_AM \ | |
41 | | X86_CR0_NW | X86_CR0_CD | X86_CR0_PG)) | |
42 | ||
cd6e8f87 ZX |
43 | #define CR3_PAE_RESERVED_BITS ((X86_CR3_PWT | X86_CR3_PCD) - 1) |
44 | #define CR3_NONPAE_RESERVED_BITS ((PAGE_SIZE-1) & ~(X86_CR3_PWT | X86_CR3_PCD)) | |
7d76b4d3 JP |
45 | #define CR3_L_MODE_RESERVED_BITS (CR3_NONPAE_RESERVED_BITS | \ |
46 | 0xFFFFFF0000000000ULL) | |
cfec82cb JR |
47 | #define CR4_RESERVED_BITS \ |
48 | (~(unsigned long)(X86_CR4_VME | X86_CR4_PVI | X86_CR4_TSD | X86_CR4_DE\ | |
49 | | X86_CR4_PSE | X86_CR4_PAE | X86_CR4_MCE \ | |
50 | | X86_CR4_PGE | X86_CR4_PCE | X86_CR4_OSFXSR \ | |
d9c3476d | 51 | | X86_CR4_OSXSAVE | X86_CR4_SMEP | X86_CR4_RDWRGSFS \ |
cfec82cb JR |
52 | | X86_CR4_OSXMMEXCPT | X86_CR4_VMXE)) |
53 | ||
54 | #define CR8_RESERVED_BITS (~(unsigned long)X86_CR8_TPR) | |
55 | ||
56 | ||
cd6e8f87 | 57 | |
cd6e8f87 | 58 | #define INVALID_PAGE (~(hpa_t)0) |
dd180b3e XG |
59 | #define VALID_PAGE(x) ((x) != INVALID_PAGE) |
60 | ||
cd6e8f87 ZX |
61 | #define UNMAPPED_GVA (~(gpa_t)0) |
62 | ||
ec04b260 | 63 | /* KVM Hugepage definitions for x86 */ |
04326caa | 64 | #define KVM_NR_PAGE_SIZES 3 |
82855413 JR |
65 | #define KVM_HPAGE_GFN_SHIFT(x) (((x) - 1) * 9) |
66 | #define KVM_HPAGE_SHIFT(x) (PAGE_SHIFT + KVM_HPAGE_GFN_SHIFT(x)) | |
ec04b260 JR |
67 | #define KVM_HPAGE_SIZE(x) (1UL << KVM_HPAGE_SHIFT(x)) |
68 | #define KVM_HPAGE_MASK(x) (~(KVM_HPAGE_SIZE(x) - 1)) | |
69 | #define KVM_PAGES_PER_HPAGE(x) (KVM_HPAGE_SIZE(x) / PAGE_SIZE) | |
05da4558 | 70 | |
cd6e8f87 | 71 | #define DE_VECTOR 0 |
19bd8afd | 72 | #define DB_VECTOR 1 |
77ab6db0 JK |
73 | #define BP_VECTOR 3 |
74 | #define OF_VECTOR 4 | |
75 | #define BR_VECTOR 5 | |
cd6e8f87 ZX |
76 | #define UD_VECTOR 6 |
77 | #define NM_VECTOR 7 | |
78 | #define DF_VECTOR 8 | |
79 | #define TS_VECTOR 10 | |
80 | #define NP_VECTOR 11 | |
81 | #define SS_VECTOR 12 | |
82 | #define GP_VECTOR 13 | |
83 | #define PF_VECTOR 14 | |
77ab6db0 | 84 | #define MF_VECTOR 16 |
53371b50 | 85 | #define MC_VECTOR 18 |
cd6e8f87 ZX |
86 | |
87 | #define SELECTOR_TI_MASK (1 << 2) | |
88 | #define SELECTOR_RPL_MASK 0x03 | |
89 | ||
90 | #define IOPL_SHIFT 12 | |
91 | ||
d657a98e ZX |
92 | #define KVM_PERMILLE_MMU_PAGES 20 |
93 | #define KVM_MIN_ALLOC_MMU_PAGES 64 | |
1ae0a13d DE |
94 | #define KVM_MMU_HASH_SHIFT 10 |
95 | #define KVM_NUM_MMU_PAGES (1 << KVM_MMU_HASH_SHIFT) | |
d657a98e ZX |
96 | #define KVM_MIN_FREE_MMU_PAGES 5 |
97 | #define KVM_REFILL_PAGES 25 | |
73c1160c | 98 | #define KVM_MAX_CPUID_ENTRIES 80 |
0bed3b56 | 99 | #define KVM_NR_FIXED_MTRR_REGION 88 |
9ba075a6 | 100 | #define KVM_NR_VAR_MTRR 8 |
d657a98e | 101 | |
af585b92 GN |
102 | #define ASYNC_PF_PER_VCPU 64 |
103 | ||
e935b837 | 104 | extern raw_spinlock_t kvm_lock; |
e9b11c17 ZX |
105 | extern struct list_head vm_list; |
106 | ||
d657a98e ZX |
107 | struct kvm_vcpu; |
108 | struct kvm; | |
af585b92 | 109 | struct kvm_async_pf; |
d657a98e | 110 | |
5fdbf976 | 111 | enum kvm_reg { |
2b3ccfa0 ZX |
112 | VCPU_REGS_RAX = 0, |
113 | VCPU_REGS_RCX = 1, | |
114 | VCPU_REGS_RDX = 2, | |
115 | VCPU_REGS_RBX = 3, | |
116 | VCPU_REGS_RSP = 4, | |
117 | VCPU_REGS_RBP = 5, | |
118 | VCPU_REGS_RSI = 6, | |
119 | VCPU_REGS_RDI = 7, | |
120 | #ifdef CONFIG_X86_64 | |
121 | VCPU_REGS_R8 = 8, | |
122 | VCPU_REGS_R9 = 9, | |
123 | VCPU_REGS_R10 = 10, | |
124 | VCPU_REGS_R11 = 11, | |
125 | VCPU_REGS_R12 = 12, | |
126 | VCPU_REGS_R13 = 13, | |
127 | VCPU_REGS_R14 = 14, | |
128 | VCPU_REGS_R15 = 15, | |
129 | #endif | |
5fdbf976 | 130 | VCPU_REGS_RIP, |
2b3ccfa0 ZX |
131 | NR_VCPU_REGS |
132 | }; | |
133 | ||
6de4f3ad AK |
134 | enum kvm_reg_ex { |
135 | VCPU_EXREG_PDPTR = NR_VCPU_REGS, | |
aff48baa | 136 | VCPU_EXREG_CR3, |
6de12732 | 137 | VCPU_EXREG_RFLAGS, |
69c73028 | 138 | VCPU_EXREG_CPL, |
2fb92db1 | 139 | VCPU_EXREG_SEGMENTS, |
6de4f3ad AK |
140 | }; |
141 | ||
2b3ccfa0 | 142 | enum { |
81609e3e | 143 | VCPU_SREG_ES, |
2b3ccfa0 | 144 | VCPU_SREG_CS, |
81609e3e | 145 | VCPU_SREG_SS, |
2b3ccfa0 | 146 | VCPU_SREG_DS, |
2b3ccfa0 ZX |
147 | VCPU_SREG_FS, |
148 | VCPU_SREG_GS, | |
2b3ccfa0 ZX |
149 | VCPU_SREG_TR, |
150 | VCPU_SREG_LDTR, | |
151 | }; | |
152 | ||
56e82318 | 153 | #include <asm/kvm_emulate.h> |
2b3ccfa0 | 154 | |
d657a98e ZX |
155 | #define KVM_NR_MEM_OBJS 40 |
156 | ||
42dbaa5a JK |
157 | #define KVM_NR_DB_REGS 4 |
158 | ||
159 | #define DR6_BD (1 << 13) | |
160 | #define DR6_BS (1 << 14) | |
161 | #define DR6_FIXED_1 0xffff0ff0 | |
162 | #define DR6_VOLATILE 0x0000e00f | |
163 | ||
164 | #define DR7_BP_EN_MASK 0x000000ff | |
165 | #define DR7_GE (1 << 9) | |
166 | #define DR7_GD (1 << 13) | |
167 | #define DR7_FIXED_1 0x00000400 | |
168 | #define DR7_VOLATILE 0xffff23ff | |
169 | ||
d657a98e ZX |
170 | /* |
171 | * We don't want allocation failures within the mmu code, so we preallocate | |
172 | * enough memory for a single page fault in a cache. | |
173 | */ | |
174 | struct kvm_mmu_memory_cache { | |
175 | int nobjs; | |
176 | void *objects[KVM_NR_MEM_OBJS]; | |
177 | }; | |
178 | ||
179 | #define NR_PTE_CHAIN_ENTRIES 5 | |
180 | ||
181 | struct kvm_pte_chain { | |
182 | u64 *parent_ptes[NR_PTE_CHAIN_ENTRIES]; | |
183 | struct hlist_node link; | |
184 | }; | |
185 | ||
186 | /* | |
187 | * kvm_mmu_page_role, below, is defined as: | |
188 | * | |
189 | * bits 0:3 - total guest paging levels (2-4, or zero for real mode) | |
190 | * bits 4:7 - page table level for this shadow (1-4) | |
191 | * bits 8:9 - page table quadrant for 2-level guests | |
f6e2c02b AK |
192 | * bit 16 - direct mapping of virtual to physical mapping at gfn |
193 | * used for real mode and two-dimensional paging | |
d657a98e ZX |
194 | * bits 17:19 - common access permissions for all ptes in this shadow page |
195 | */ | |
196 | union kvm_mmu_page_role { | |
197 | unsigned word; | |
198 | struct { | |
7d76b4d3 | 199 | unsigned level:4; |
5b7e0102 | 200 | unsigned cr4_pae:1; |
7d76b4d3 JP |
201 | unsigned quadrant:2; |
202 | unsigned pad_for_nice_hex_output:6; | |
f6e2c02b | 203 | unsigned direct:1; |
7d76b4d3 | 204 | unsigned access:3; |
2e53d63a | 205 | unsigned invalid:1; |
9645bb56 | 206 | unsigned nxe:1; |
3dbe1415 | 207 | unsigned cr0_wp:1; |
411c588d | 208 | unsigned smep_andnot_wp:1; |
d657a98e ZX |
209 | }; |
210 | }; | |
211 | ||
212 | struct kvm_mmu_page { | |
213 | struct list_head link; | |
214 | struct hlist_node hash_link; | |
215 | ||
216 | /* | |
217 | * The following two entries are used to key the shadow page in the | |
218 | * hash table. | |
219 | */ | |
220 | gfn_t gfn; | |
221 | union kvm_mmu_page_role role; | |
222 | ||
223 | u64 *spt; | |
224 | /* hold the gfn of each spte inside spt */ | |
225 | gfn_t *gfns; | |
291f26bc SY |
226 | /* |
227 | * One bit set per slot which has memory | |
228 | * in this shadow page. | |
229 | */ | |
230 | DECLARE_BITMAP(slot_bitmap, KVM_MEMORY_SLOTS + KVM_PRIVATE_MEM_SLOTS); | |
4731d4c7 | 231 | bool unsync; |
0571d366 | 232 | int root_count; /* Currently serving as active root */ |
60c8aec6 | 233 | unsigned int unsync_children; |
67052b35 | 234 | unsigned long parent_ptes; /* Reverse mapping for parent_pte */ |
0074ff63 | 235 | DECLARE_BITMAP(unsync_child_bitmap, 512); |
c2a2ac2b XG |
236 | |
237 | #ifdef CONFIG_X86_32 | |
238 | int clear_spte_count; | |
239 | #endif | |
240 | ||
241 | struct rcu_head rcu; | |
d657a98e ZX |
242 | }; |
243 | ||
6ad18fba DH |
244 | struct kvm_pv_mmu_op_buffer { |
245 | void *ptr; | |
246 | unsigned len; | |
247 | unsigned processed; | |
248 | char buf[512] __aligned(sizeof(long)); | |
249 | }; | |
250 | ||
1c08364c AK |
251 | struct kvm_pio_request { |
252 | unsigned long count; | |
1c08364c AK |
253 | int in; |
254 | int port; | |
255 | int size; | |
1c08364c AK |
256 | }; |
257 | ||
d657a98e ZX |
258 | /* |
259 | * x86 supports 3 paging modes (4-level 64-bit, 3-level 64-bit, and 2-level | |
260 | * 32-bit). The kvm_mmu structure abstracts the details of the current mmu | |
261 | * mode. | |
262 | */ | |
263 | struct kvm_mmu { | |
264 | void (*new_cr3)(struct kvm_vcpu *vcpu); | |
f43addd4 | 265 | void (*set_cr3)(struct kvm_vcpu *vcpu, unsigned long root); |
5777ed34 | 266 | unsigned long (*get_cr3)(struct kvm_vcpu *vcpu); |
78b2c54a XG |
267 | int (*page_fault)(struct kvm_vcpu *vcpu, gva_t gva, u32 err, |
268 | bool prefault); | |
6389ee94 AK |
269 | void (*inject_page_fault)(struct kvm_vcpu *vcpu, |
270 | struct x86_exception *fault); | |
d657a98e | 271 | void (*free)(struct kvm_vcpu *vcpu); |
1871c602 | 272 | gpa_t (*gva_to_gpa)(struct kvm_vcpu *vcpu, gva_t gva, u32 access, |
ab9ae313 | 273 | struct x86_exception *exception); |
c30a358d | 274 | gpa_t (*translate_gpa)(struct kvm_vcpu *vcpu, gpa_t gpa, u32 access); |
e8bc217a | 275 | int (*sync_page)(struct kvm_vcpu *vcpu, |
a4a8e6f7 | 276 | struct kvm_mmu_page *sp); |
a7052897 | 277 | void (*invlpg)(struct kvm_vcpu *vcpu, gva_t gva); |
0f53b5b1 | 278 | void (*update_pte)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp, |
7c562522 | 279 | u64 *spte, const void *pte); |
d657a98e ZX |
280 | hpa_t root_hpa; |
281 | int root_level; | |
282 | int shadow_root_level; | |
a770f6f2 | 283 | union kvm_mmu_page_role base_role; |
c5a78f2b | 284 | bool direct_map; |
d657a98e ZX |
285 | |
286 | u64 *pae_root; | |
81407ca5 | 287 | u64 *lm_root; |
82725b20 | 288 | u64 rsvd_bits_mask[2][4]; |
ff03a073 | 289 | |
2d48a985 JR |
290 | bool nx; |
291 | ||
ff03a073 | 292 | u64 pdptrs[4]; /* pae */ |
d657a98e ZX |
293 | }; |
294 | ||
ad312c7c | 295 | struct kvm_vcpu_arch { |
5fdbf976 MT |
296 | /* |
297 | * rip and regs accesses must go through | |
298 | * kvm_{register,rip}_{read,write} functions. | |
299 | */ | |
300 | unsigned long regs[NR_VCPU_REGS]; | |
301 | u32 regs_avail; | |
302 | u32 regs_dirty; | |
34c16eec ZX |
303 | |
304 | unsigned long cr0; | |
e8467fda | 305 | unsigned long cr0_guest_owned_bits; |
34c16eec ZX |
306 | unsigned long cr2; |
307 | unsigned long cr3; | |
308 | unsigned long cr4; | |
fc78f519 | 309 | unsigned long cr4_guest_owned_bits; |
34c16eec | 310 | unsigned long cr8; |
1371d904 | 311 | u32 hflags; |
f6801dff | 312 | u64 efer; |
34c16eec ZX |
313 | u64 apic_base; |
314 | struct kvm_lapic *apic; /* kernel irqchip context */ | |
e1035715 | 315 | int32_t apic_arb_prio; |
34c16eec ZX |
316 | int mp_state; |
317 | int sipi_vector; | |
318 | u64 ia32_misc_enable_msr; | |
b209749f | 319 | bool tpr_access_reporting; |
34c16eec | 320 | |
14dfe855 JR |
321 | /* |
322 | * Paging state of the vcpu | |
323 | * | |
324 | * If the vcpu runs in guest mode with two level paging this still saves | |
325 | * the paging mode of the l1 guest. This context is always used to | |
326 | * handle faults. | |
327 | */ | |
34c16eec | 328 | struct kvm_mmu mmu; |
8df25a32 | 329 | |
6539e738 JR |
330 | /* |
331 | * Paging state of an L2 guest (used for nested npt) | |
332 | * | |
333 | * This context will save all necessary information to walk page tables | |
334 | * of the an L2 guest. This context is only initialized for page table | |
335 | * walking and not for faulting since we never handle l2 page faults on | |
336 | * the host. | |
337 | */ | |
338 | struct kvm_mmu nested_mmu; | |
339 | ||
14dfe855 JR |
340 | /* |
341 | * Pointer to the mmu context currently used for | |
342 | * gva_to_gpa translations. | |
343 | */ | |
344 | struct kvm_mmu *walk_mmu; | |
345 | ||
6ad18fba DH |
346 | /* only needed in kvm_pv_mmu_op() path, but it's hot so |
347 | * put it here to avoid allocation */ | |
348 | struct kvm_pv_mmu_op_buffer mmu_op_buffer; | |
34c16eec | 349 | |
53c07b18 | 350 | struct kvm_mmu_memory_cache mmu_pte_list_desc_cache; |
34c16eec ZX |
351 | struct kvm_mmu_memory_cache mmu_page_cache; |
352 | struct kvm_mmu_memory_cache mmu_page_header_cache; | |
353 | ||
354 | gfn_t last_pt_write_gfn; | |
355 | int last_pt_write_count; | |
356 | u64 *last_pte_updated; | |
1b7fcd32 | 357 | gfn_t last_pte_gfn; |
34c16eec | 358 | |
98918833 | 359 | struct fpu guest_fpu; |
2acf923e | 360 | u64 xcr0; |
34c16eec | 361 | |
34c16eec ZX |
362 | struct kvm_pio_request pio; |
363 | void *pio_data; | |
364 | ||
66fd3f7f GN |
365 | u8 event_exit_inst_len; |
366 | ||
298101da AK |
367 | struct kvm_queued_exception { |
368 | bool pending; | |
369 | bool has_error_code; | |
ce7ddec4 | 370 | bool reinject; |
298101da AK |
371 | u8 nr; |
372 | u32 error_code; | |
373 | } exception; | |
374 | ||
937a7eae AK |
375 | struct kvm_queued_interrupt { |
376 | bool pending; | |
66fd3f7f | 377 | bool soft; |
937a7eae AK |
378 | u8 nr; |
379 | } interrupt; | |
380 | ||
34c16eec ZX |
381 | int halt_request; /* real mode on Intel only */ |
382 | ||
383 | int cpuid_nent; | |
07716717 | 384 | struct kvm_cpuid_entry2 cpuid_entries[KVM_MAX_CPUID_ENTRIES]; |
34c16eec ZX |
385 | /* emulate context */ |
386 | ||
387 | struct x86_emulate_ctxt emulate_ctxt; | |
7ae441ea GN |
388 | bool emulate_regs_need_sync_to_vcpu; |
389 | bool emulate_regs_need_sync_from_vcpu; | |
18068523 GOC |
390 | |
391 | gpa_t time; | |
50d0a0f9 | 392 | struct pvclock_vcpu_time_info hv_clock; |
e48672fa | 393 | unsigned int hw_tsc_khz; |
18068523 GOC |
394 | unsigned int time_offset; |
395 | struct page *time_page; | |
c9aaa895 GC |
396 | |
397 | struct { | |
398 | u64 msr_val; | |
399 | u64 last_steal; | |
400 | u64 accum_steal; | |
401 | struct gfn_to_hva_cache stime; | |
402 | struct kvm_steal_time steal; | |
403 | } st; | |
404 | ||
1d5f066e ZA |
405 | u64 last_guest_tsc; |
406 | u64 last_kernel_ns; | |
c285545f ZA |
407 | u64 last_tsc_nsec; |
408 | u64 last_tsc_write; | |
1e993611 | 409 | u32 virtual_tsc_khz; |
c285545f | 410 | bool tsc_catchup; |
1e993611 JR |
411 | u32 tsc_catchup_mult; |
412 | s8 tsc_catchup_shift; | |
3419ffc8 SY |
413 | |
414 | bool nmi_pending; | |
668f612f | 415 | bool nmi_injected; |
9ba075a6 | 416 | |
0bed3b56 SY |
417 | struct mtrr_state_type mtrr_state; |
418 | u32 pat; | |
42dbaa5a JK |
419 | |
420 | int switch_db_regs; | |
42dbaa5a JK |
421 | unsigned long db[KVM_NR_DB_REGS]; |
422 | unsigned long dr6; | |
423 | unsigned long dr7; | |
424 | unsigned long eff_db[KVM_NR_DB_REGS]; | |
890ca9ae HY |
425 | |
426 | u64 mcg_cap; | |
427 | u64 mcg_status; | |
428 | u64 mcg_ctl; | |
429 | u64 *mce_banks; | |
94fe45da | 430 | |
bebb106a XG |
431 | /* Cache MMIO info */ |
432 | u64 mmio_gva; | |
433 | unsigned access; | |
434 | gfn_t mmio_gfn; | |
435 | ||
94fe45da | 436 | /* used for guest single stepping over the given code position */ |
94fe45da | 437 | unsigned long singlestep_rip; |
f92653ee | 438 | |
10388a07 GN |
439 | /* fields used by HYPER-V emulation */ |
440 | u64 hv_vapic; | |
f5f48ee1 SY |
441 | |
442 | cpumask_var_t wbinvd_dirty_mask; | |
af585b92 GN |
443 | |
444 | struct { | |
445 | bool halted; | |
446 | gfn_t gfns[roundup_pow_of_two(ASYNC_PF_PER_VCPU)]; | |
344d9588 GN |
447 | struct gfn_to_hva_cache data; |
448 | u64 msr_val; | |
7c90705b | 449 | u32 id; |
6adba527 | 450 | bool send_user_only; |
af585b92 | 451 | } apf; |
34c16eec ZX |
452 | }; |
453 | ||
fef9cce0 | 454 | struct kvm_arch { |
49d5ca26 | 455 | unsigned int n_used_mmu_pages; |
f05e70ac | 456 | unsigned int n_requested_mmu_pages; |
39de71ec | 457 | unsigned int n_max_mmu_pages; |
332b207d | 458 | unsigned int indirect_shadow_pages; |
08e850c6 | 459 | atomic_t invlpg_counter; |
f05e70ac ZX |
460 | struct hlist_head mmu_page_hash[KVM_NUM_MMU_PAGES]; |
461 | /* | |
462 | * Hash table of struct kvm_mmu_page. | |
463 | */ | |
464 | struct list_head active_mmu_pages; | |
4d5c5d0f | 465 | struct list_head assigned_dev_head; |
19de40a8 | 466 | struct iommu_domain *iommu_domain; |
522c68c4 | 467 | int iommu_flags; |
d7deeeb0 ZX |
468 | struct kvm_pic *vpic; |
469 | struct kvm_ioapic *vioapic; | |
7837699f | 470 | struct kvm_pit *vpit; |
cc6e462c | 471 | int vapics_in_nmi_mode; |
bfc6d222 | 472 | |
bfc6d222 ZX |
473 | unsigned int tss_addr; |
474 | struct page *apic_access_page; | |
18068523 GOC |
475 | |
476 | gpa_t wall_clock; | |
b7ebfb05 SY |
477 | |
478 | struct page *ept_identity_pagetable; | |
479 | bool ept_identity_pagetable_done; | |
b927a3ce | 480 | gpa_t ept_identity_map_addr; |
5550af4d SY |
481 | |
482 | unsigned long irq_sources_bitmap; | |
afbcf7ab | 483 | s64 kvmclock_offset; |
038f8c11 | 484 | raw_spinlock_t tsc_write_lock; |
f38e098f ZA |
485 | u64 last_tsc_nsec; |
486 | u64 last_tsc_offset; | |
487 | u64 last_tsc_write; | |
ffde22ac ES |
488 | |
489 | struct kvm_xen_hvm_config xen_hvm_config; | |
55cd8e5a GN |
490 | |
491 | /* fields used by HYPER-V emulation */ | |
492 | u64 hv_guest_os_id; | |
493 | u64 hv_hypercall; | |
b034cf01 | 494 | |
c2a2ac2b XG |
495 | atomic_t reader_counter; |
496 | ||
b034cf01 XG |
497 | #ifdef CONFIG_KVM_MMU_AUDIT |
498 | int audit_point; | |
499 | #endif | |
d69fb81f ZX |
500 | }; |
501 | ||
0711456c ZX |
502 | struct kvm_vm_stat { |
503 | u32 mmu_shadow_zapped; | |
504 | u32 mmu_pte_write; | |
505 | u32 mmu_pte_updated; | |
506 | u32 mmu_pde_zapped; | |
507 | u32 mmu_flooded; | |
508 | u32 mmu_recycled; | |
dfc5aa00 | 509 | u32 mmu_cache_miss; |
4731d4c7 | 510 | u32 mmu_unsync; |
0711456c | 511 | u32 remote_tlb_flush; |
05da4558 | 512 | u32 lpages; |
0711456c ZX |
513 | }; |
514 | ||
77b4c255 ZX |
515 | struct kvm_vcpu_stat { |
516 | u32 pf_fixed; | |
517 | u32 pf_guest; | |
518 | u32 tlb_flush; | |
519 | u32 invlpg; | |
520 | ||
521 | u32 exits; | |
522 | u32 io_exits; | |
523 | u32 mmio_exits; | |
524 | u32 signal_exits; | |
525 | u32 irq_window_exits; | |
f08864b4 | 526 | u32 nmi_window_exits; |
77b4c255 ZX |
527 | u32 halt_exits; |
528 | u32 halt_wakeup; | |
529 | u32 request_irq_exits; | |
530 | u32 irq_exits; | |
531 | u32 host_state_reload; | |
532 | u32 efer_reload; | |
533 | u32 fpu_reload; | |
534 | u32 insn_emulation; | |
535 | u32 insn_emulation_fail; | |
f11c3a8d | 536 | u32 hypercalls; |
fa89a817 | 537 | u32 irq_injections; |
c4abb7c9 | 538 | u32 nmi_injections; |
77b4c255 | 539 | }; |
ad312c7c | 540 | |
8a76d7f2 JR |
541 | struct x86_instruction_info; |
542 | ||
ea4a5ff8 ZX |
543 | struct kvm_x86_ops { |
544 | int (*cpu_has_kvm_support)(void); /* __init */ | |
545 | int (*disabled_by_bios)(void); /* __init */ | |
10474ae8 | 546 | int (*hardware_enable)(void *dummy); |
ea4a5ff8 ZX |
547 | void (*hardware_disable)(void *dummy); |
548 | void (*check_processor_compatibility)(void *rtn); | |
549 | int (*hardware_setup)(void); /* __init */ | |
550 | void (*hardware_unsetup)(void); /* __exit */ | |
774ead3a | 551 | bool (*cpu_has_accelerated_tpr)(void); |
0e851880 | 552 | void (*cpuid_update)(struct kvm_vcpu *vcpu); |
ea4a5ff8 ZX |
553 | |
554 | /* Create, but do not attach this VCPU */ | |
555 | struct kvm_vcpu *(*vcpu_create)(struct kvm *kvm, unsigned id); | |
556 | void (*vcpu_free)(struct kvm_vcpu *vcpu); | |
557 | int (*vcpu_reset)(struct kvm_vcpu *vcpu); | |
558 | ||
559 | void (*prepare_guest_switch)(struct kvm_vcpu *vcpu); | |
560 | void (*vcpu_load)(struct kvm_vcpu *vcpu, int cpu); | |
561 | void (*vcpu_put)(struct kvm_vcpu *vcpu); | |
ea4a5ff8 | 562 | |
355be0b9 JK |
563 | void (*set_guest_debug)(struct kvm_vcpu *vcpu, |
564 | struct kvm_guest_debug *dbg); | |
ea4a5ff8 ZX |
565 | int (*get_msr)(struct kvm_vcpu *vcpu, u32 msr_index, u64 *pdata); |
566 | int (*set_msr)(struct kvm_vcpu *vcpu, u32 msr_index, u64 data); | |
567 | u64 (*get_segment_base)(struct kvm_vcpu *vcpu, int seg); | |
568 | void (*get_segment)(struct kvm_vcpu *vcpu, | |
569 | struct kvm_segment *var, int seg); | |
2e4d2653 | 570 | int (*get_cpl)(struct kvm_vcpu *vcpu); |
ea4a5ff8 ZX |
571 | void (*set_segment)(struct kvm_vcpu *vcpu, |
572 | struct kvm_segment *var, int seg); | |
573 | void (*get_cs_db_l_bits)(struct kvm_vcpu *vcpu, int *db, int *l); | |
e8467fda | 574 | void (*decache_cr0_guest_bits)(struct kvm_vcpu *vcpu); |
aff48baa | 575 | void (*decache_cr3)(struct kvm_vcpu *vcpu); |
ea4a5ff8 ZX |
576 | void (*decache_cr4_guest_bits)(struct kvm_vcpu *vcpu); |
577 | void (*set_cr0)(struct kvm_vcpu *vcpu, unsigned long cr0); | |
578 | void (*set_cr3)(struct kvm_vcpu *vcpu, unsigned long cr3); | |
5e1746d6 | 579 | int (*set_cr4)(struct kvm_vcpu *vcpu, unsigned long cr4); |
ea4a5ff8 | 580 | void (*set_efer)(struct kvm_vcpu *vcpu, u64 efer); |
89a27f4d GN |
581 | void (*get_idt)(struct kvm_vcpu *vcpu, struct desc_ptr *dt); |
582 | void (*set_idt)(struct kvm_vcpu *vcpu, struct desc_ptr *dt); | |
583 | void (*get_gdt)(struct kvm_vcpu *vcpu, struct desc_ptr *dt); | |
584 | void (*set_gdt)(struct kvm_vcpu *vcpu, struct desc_ptr *dt); | |
020df079 | 585 | void (*set_dr7)(struct kvm_vcpu *vcpu, unsigned long value); |
5fdbf976 | 586 | void (*cache_reg)(struct kvm_vcpu *vcpu, enum kvm_reg reg); |
ea4a5ff8 ZX |
587 | unsigned long (*get_rflags)(struct kvm_vcpu *vcpu); |
588 | void (*set_rflags)(struct kvm_vcpu *vcpu, unsigned long rflags); | |
6b52d186 | 589 | void (*fpu_activate)(struct kvm_vcpu *vcpu); |
02daab21 | 590 | void (*fpu_deactivate)(struct kvm_vcpu *vcpu); |
ea4a5ff8 ZX |
591 | |
592 | void (*tlb_flush)(struct kvm_vcpu *vcpu); | |
ea4a5ff8 | 593 | |
851ba692 AK |
594 | void (*run)(struct kvm_vcpu *vcpu); |
595 | int (*handle_exit)(struct kvm_vcpu *vcpu); | |
ea4a5ff8 | 596 | void (*skip_emulated_instruction)(struct kvm_vcpu *vcpu); |
2809f5d2 GC |
597 | void (*set_interrupt_shadow)(struct kvm_vcpu *vcpu, int mask); |
598 | u32 (*get_interrupt_shadow)(struct kvm_vcpu *vcpu, int mask); | |
ea4a5ff8 ZX |
599 | void (*patch_hypercall)(struct kvm_vcpu *vcpu, |
600 | unsigned char *hypercall_addr); | |
66fd3f7f | 601 | void (*set_irq)(struct kvm_vcpu *vcpu); |
95ba8273 | 602 | void (*set_nmi)(struct kvm_vcpu *vcpu); |
298101da | 603 | void (*queue_exception)(struct kvm_vcpu *vcpu, unsigned nr, |
ce7ddec4 JR |
604 | bool has_error_code, u32 error_code, |
605 | bool reinject); | |
b463a6f7 | 606 | void (*cancel_injection)(struct kvm_vcpu *vcpu); |
78646121 | 607 | int (*interrupt_allowed)(struct kvm_vcpu *vcpu); |
95ba8273 | 608 | int (*nmi_allowed)(struct kvm_vcpu *vcpu); |
3cfc3092 JK |
609 | bool (*get_nmi_mask)(struct kvm_vcpu *vcpu); |
610 | void (*set_nmi_mask)(struct kvm_vcpu *vcpu, bool masked); | |
95ba8273 GN |
611 | void (*enable_nmi_window)(struct kvm_vcpu *vcpu); |
612 | void (*enable_irq_window)(struct kvm_vcpu *vcpu); | |
613 | void (*update_cr8_intercept)(struct kvm_vcpu *vcpu, int tpr, int irr); | |
ea4a5ff8 | 614 | int (*set_tss_addr)(struct kvm *kvm, unsigned int addr); |
67253af5 | 615 | int (*get_tdp_level)(void); |
4b12f0de | 616 | u64 (*get_mt_mask)(struct kvm_vcpu *vcpu, gfn_t gfn, bool is_mmio); |
17cc3935 | 617 | int (*get_lpage_level)(void); |
4e47c7a6 | 618 | bool (*rdtscp_supported)(void); |
e48672fa | 619 | void (*adjust_tsc_offset)(struct kvm_vcpu *vcpu, s64 adjustment); |
344f414f | 620 | |
1c97f0a0 JR |
621 | void (*set_tdp_cr3)(struct kvm_vcpu *vcpu, unsigned long cr3); |
622 | ||
d4330ef2 JR |
623 | void (*set_supported_cpuid)(u32 func, struct kvm_cpuid_entry2 *entry); |
624 | ||
f5f48ee1 SY |
625 | bool (*has_wbinvd_exit)(void); |
626 | ||
4051b188 | 627 | void (*set_tsc_khz)(struct kvm_vcpu *vcpu, u32 user_tsc_khz); |
99e3e30a ZA |
628 | void (*write_tsc_offset)(struct kvm_vcpu *vcpu, u64 offset); |
629 | ||
857e4099 JR |
630 | u64 (*compute_tsc_offset)(struct kvm_vcpu *vcpu, u64 target_tsc); |
631 | ||
586f9607 | 632 | void (*get_exit_info)(struct kvm_vcpu *vcpu, u64 *info1, u64 *info2); |
8a76d7f2 JR |
633 | |
634 | int (*check_intercept)(struct kvm_vcpu *vcpu, | |
635 | struct x86_instruction_info *info, | |
636 | enum x86_intercept_stage stage); | |
637 | ||
229456fc | 638 | const struct trace_print_flags *exit_reasons_str; |
ea4a5ff8 ZX |
639 | }; |
640 | ||
af585b92 | 641 | struct kvm_arch_async_pf { |
7c90705b | 642 | u32 token; |
af585b92 | 643 | gfn_t gfn; |
fb67e14f | 644 | unsigned long cr3; |
c4806acd | 645 | bool direct_map; |
af585b92 GN |
646 | }; |
647 | ||
97896d04 ZX |
648 | extern struct kvm_x86_ops *kvm_x86_ops; |
649 | ||
54f1585a ZX |
650 | int kvm_mmu_module_init(void); |
651 | void kvm_mmu_module_exit(void); | |
652 | ||
653 | void kvm_mmu_destroy(struct kvm_vcpu *vcpu); | |
654 | int kvm_mmu_create(struct kvm_vcpu *vcpu); | |
655 | int kvm_mmu_setup(struct kvm_vcpu *vcpu); | |
7b52345e | 656 | void kvm_mmu_set_mask_ptes(u64 user_mask, u64 accessed_mask, |
4b12f0de | 657 | u64 dirty_mask, u64 nx_mask, u64 x_mask); |
54f1585a ZX |
658 | |
659 | int kvm_mmu_reset_context(struct kvm_vcpu *vcpu); | |
660 | void kvm_mmu_slot_remove_write_access(struct kvm *kvm, int slot); | |
661 | void kvm_mmu_zap_all(struct kvm *kvm); | |
3ad82a7e | 662 | unsigned int kvm_mmu_calculate_mmu_pages(struct kvm *kvm); |
54f1585a ZX |
663 | void kvm_mmu_change_mmu_pages(struct kvm *kvm, unsigned int kvm_nr_mmu_pages); |
664 | ||
ff03a073 | 665 | int load_pdptrs(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu, unsigned long cr3); |
cc4b6871 | 666 | |
3200f405 | 667 | int emulator_write_phys(struct kvm_vcpu *vcpu, gpa_t gpa, |
9f811285 | 668 | const void *val, int bytes); |
2f333bcb MT |
669 | int kvm_pv_mmu_op(struct kvm_vcpu *vcpu, unsigned long bytes, |
670 | gpa_t addr, unsigned long *ret); | |
4b12f0de | 671 | u8 kvm_get_guest_memory_type(struct kvm_vcpu *vcpu, gfn_t gfn); |
2f333bcb MT |
672 | |
673 | extern bool tdp_enabled; | |
9f811285 | 674 | |
92a1f12d JR |
675 | /* control of guest tsc rate supported? */ |
676 | extern bool kvm_has_tsc_control; | |
677 | /* minimum supported tsc_khz for guests */ | |
678 | extern u32 kvm_min_guest_tsc_khz; | |
679 | /* maximum supported tsc_khz for guests */ | |
680 | extern u32 kvm_max_guest_tsc_khz; | |
681 | ||
54f1585a ZX |
682 | enum emulation_result { |
683 | EMULATE_DONE, /* no further processing */ | |
684 | EMULATE_DO_MMIO, /* kvm_run filled with mmio request */ | |
685 | EMULATE_FAIL, /* can't emulate this instruction */ | |
686 | }; | |
687 | ||
571008da SY |
688 | #define EMULTYPE_NO_DECODE (1 << 0) |
689 | #define EMULTYPE_TRAP_UD (1 << 1) | |
ba8afb6b | 690 | #define EMULTYPE_SKIP (1 << 2) |
dc25e89e AP |
691 | int x86_emulate_instruction(struct kvm_vcpu *vcpu, unsigned long cr2, |
692 | int emulation_type, void *insn, int insn_len); | |
51d8b661 AP |
693 | |
694 | static inline int emulate_instruction(struct kvm_vcpu *vcpu, | |
695 | int emulation_type) | |
696 | { | |
dc25e89e | 697 | return x86_emulate_instruction(vcpu, 0, emulation_type, NULL, 0); |
51d8b661 AP |
698 | } |
699 | ||
f2b4b7dd | 700 | void kvm_enable_efer_bits(u64); |
54f1585a ZX |
701 | int kvm_get_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 *data); |
702 | int kvm_set_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 data); | |
703 | ||
704 | struct x86_emulate_ctxt; | |
705 | ||
cf8f70bf | 706 | int kvm_fast_pio_out(struct kvm_vcpu *vcpu, int size, unsigned short port); |
54f1585a ZX |
707 | void kvm_emulate_cpuid(struct kvm_vcpu *vcpu); |
708 | int kvm_emulate_halt(struct kvm_vcpu *vcpu); | |
f5f48ee1 | 709 | int kvm_emulate_wbinvd(struct kvm_vcpu *vcpu); |
54f1585a | 710 | |
3e6e0aab | 711 | void kvm_get_segment(struct kvm_vcpu *vcpu, struct kvm_segment *var, int seg); |
c697518a | 712 | int kvm_load_segment_descriptor(struct kvm_vcpu *vcpu, u16 selector, int seg); |
3e6e0aab | 713 | |
e269fb21 JK |
714 | int kvm_task_switch(struct kvm_vcpu *vcpu, u16 tss_selector, int reason, |
715 | bool has_error_code, u32 error_code); | |
37817f29 | 716 | |
49a9b07e | 717 | int kvm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0); |
2390218b | 718 | int kvm_set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3); |
a83b29c6 | 719 | int kvm_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4); |
eea1cff9 | 720 | int kvm_set_cr8(struct kvm_vcpu *vcpu, unsigned long cr8); |
020df079 GN |
721 | int kvm_set_dr(struct kvm_vcpu *vcpu, int dr, unsigned long val); |
722 | int kvm_get_dr(struct kvm_vcpu *vcpu, int dr, unsigned long *val); | |
2d3ad1f4 AK |
723 | unsigned long kvm_get_cr8(struct kvm_vcpu *vcpu); |
724 | void kvm_lmsw(struct kvm_vcpu *vcpu, unsigned long msw); | |
54f1585a | 725 | void kvm_get_cs_db_l_bits(struct kvm_vcpu *vcpu, int *db, int *l); |
2acf923e | 726 | int kvm_set_xcr(struct kvm_vcpu *vcpu, u32 index, u64 xcr); |
54f1585a ZX |
727 | |
728 | int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata); | |
729 | int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data); | |
730 | ||
91586a3b JK |
731 | unsigned long kvm_get_rflags(struct kvm_vcpu *vcpu); |
732 | void kvm_set_rflags(struct kvm_vcpu *vcpu, unsigned long rflags); | |
733 | ||
298101da AK |
734 | void kvm_queue_exception(struct kvm_vcpu *vcpu, unsigned nr); |
735 | void kvm_queue_exception_e(struct kvm_vcpu *vcpu, unsigned nr, u32 error_code); | |
ce7ddec4 JR |
736 | void kvm_requeue_exception(struct kvm_vcpu *vcpu, unsigned nr); |
737 | void kvm_requeue_exception_e(struct kvm_vcpu *vcpu, unsigned nr, u32 error_code); | |
6389ee94 | 738 | void kvm_inject_page_fault(struct kvm_vcpu *vcpu, struct x86_exception *fault); |
ec92fe44 JR |
739 | int kvm_read_guest_page_mmu(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu, |
740 | gfn_t gfn, void *data, int offset, int len, | |
741 | u32 access); | |
6389ee94 | 742 | void kvm_propagate_fault(struct kvm_vcpu *vcpu, struct x86_exception *fault); |
0a79b009 | 743 | bool kvm_require_cpl(struct kvm_vcpu *vcpu, int required_cpl); |
298101da | 744 | |
4925663a | 745 | int kvm_pic_set_irq(void *opaque, int irq, int level); |
3de42dc0 | 746 | |
3419ffc8 SY |
747 | void kvm_inject_nmi(struct kvm_vcpu *vcpu); |
748 | ||
10ab25cd | 749 | int fx_init(struct kvm_vcpu *vcpu); |
54f1585a | 750 | |
d835dfec | 751 | void kvm_mmu_flush_tlb(struct kvm_vcpu *vcpu); |
54f1585a | 752 | void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa, |
ad218f85 MT |
753 | const u8 *new, int bytes, |
754 | bool guest_initiated); | |
54f1585a ZX |
755 | int kvm_mmu_unprotect_page_virt(struct kvm_vcpu *vcpu, gva_t gva); |
756 | void __kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu); | |
757 | int kvm_mmu_load(struct kvm_vcpu *vcpu); | |
758 | void kvm_mmu_unload(struct kvm_vcpu *vcpu); | |
0ba73cda | 759 | void kvm_mmu_sync_roots(struct kvm_vcpu *vcpu); |
ab9ae313 AK |
760 | gpa_t kvm_mmu_gva_to_gpa_read(struct kvm_vcpu *vcpu, gva_t gva, |
761 | struct x86_exception *exception); | |
762 | gpa_t kvm_mmu_gva_to_gpa_fetch(struct kvm_vcpu *vcpu, gva_t gva, | |
763 | struct x86_exception *exception); | |
764 | gpa_t kvm_mmu_gva_to_gpa_write(struct kvm_vcpu *vcpu, gva_t gva, | |
765 | struct x86_exception *exception); | |
766 | gpa_t kvm_mmu_gva_to_gpa_system(struct kvm_vcpu *vcpu, gva_t gva, | |
767 | struct x86_exception *exception); | |
54f1585a ZX |
768 | |
769 | int kvm_emulate_hypercall(struct kvm_vcpu *vcpu); | |
770 | ||
dc25e89e AP |
771 | int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t gva, u32 error_code, |
772 | void *insn, int insn_len); | |
a7052897 | 773 | void kvm_mmu_invlpg(struct kvm_vcpu *vcpu, gva_t gva); |
34c16eec | 774 | |
18552672 | 775 | void kvm_enable_tdp(void); |
5f4cb662 | 776 | void kvm_disable_tdp(void); |
18552672 | 777 | |
de7d789a | 778 | int complete_pio(struct kvm_vcpu *vcpu); |
f850e2e6 | 779 | bool kvm_check_iopl(struct kvm_vcpu *vcpu); |
ec6d273d ZX |
780 | |
781 | static inline struct kvm_mmu_page *page_header(hpa_t shadow_page) | |
782 | { | |
783 | struct page *page = pfn_to_page(shadow_page >> PAGE_SHIFT); | |
784 | ||
785 | return (struct kvm_mmu_page *)page_private(page); | |
786 | } | |
787 | ||
d6e88aec | 788 | static inline u16 kvm_read_ldt(void) |
ec6d273d ZX |
789 | { |
790 | u16 ldt; | |
791 | asm("sldt %0" : "=g"(ldt)); | |
792 | return ldt; | |
793 | } | |
794 | ||
d6e88aec | 795 | static inline void kvm_load_ldt(u16 sel) |
ec6d273d ZX |
796 | { |
797 | asm("lldt %0" : : "rm"(sel)); | |
798 | } | |
ec6d273d | 799 | |
ec6d273d ZX |
800 | #ifdef CONFIG_X86_64 |
801 | static inline unsigned long read_msr(unsigned long msr) | |
802 | { | |
803 | u64 value; | |
804 | ||
805 | rdmsrl(msr, value); | |
806 | return value; | |
807 | } | |
808 | #endif | |
809 | ||
ec6d273d ZX |
810 | static inline u32 get_rdx_init_val(void) |
811 | { | |
812 | return 0x600; /* P6 family */ | |
813 | } | |
814 | ||
c1a5d4f9 AK |
815 | static inline void kvm_inject_gp(struct kvm_vcpu *vcpu, u32 error_code) |
816 | { | |
817 | kvm_queue_exception_e(vcpu, GP_VECTOR, error_code); | |
818 | } | |
819 | ||
ec6d273d ZX |
820 | #define TSS_IOPB_BASE_OFFSET 0x66 |
821 | #define TSS_BASE_SIZE 0x68 | |
822 | #define TSS_IOPB_SIZE (65536 / 8) | |
823 | #define TSS_REDIRECTION_SIZE (256 / 8) | |
7d76b4d3 JP |
824 | #define RMODE_TSS_SIZE \ |
825 | (TSS_BASE_SIZE + TSS_REDIRECTION_SIZE + TSS_IOPB_SIZE + 1) | |
53e0aa7b | 826 | |
37817f29 IE |
827 | enum { |
828 | TASK_SWITCH_CALL = 0, | |
829 | TASK_SWITCH_IRET = 1, | |
830 | TASK_SWITCH_JMP = 2, | |
831 | TASK_SWITCH_GATE = 3, | |
832 | }; | |
833 | ||
1371d904 | 834 | #define HF_GIF_MASK (1 << 0) |
3d6368ef AG |
835 | #define HF_HIF_MASK (1 << 1) |
836 | #define HF_VINTR_MASK (1 << 2) | |
95ba8273 | 837 | #define HF_NMI_MASK (1 << 3) |
44c11430 | 838 | #define HF_IRET_MASK (1 << 4) |
ec9e60b2 | 839 | #define HF_GUEST_MASK (1 << 5) /* VCPU is in guest-mode */ |
1371d904 | 840 | |
4ecac3fd AK |
841 | /* |
842 | * Hardware virtualization extension instructions may fault if a | |
843 | * reboot turns off virtualization while processes are running. | |
844 | * Trap the fault and ignore the instruction if that happens. | |
845 | */ | |
b7c4145b AK |
846 | asmlinkage void kvm_spurious_fault(void); |
847 | extern bool kvm_rebooting; | |
4ecac3fd | 848 | |
5e520e62 | 849 | #define ____kvm_handle_fault_on_reboot(insn, cleanup_insn) \ |
4ecac3fd | 850 | "666: " insn "\n\t" \ |
b7c4145b | 851 | "668: \n\t" \ |
18b13e54 | 852 | ".pushsection .fixup, \"ax\" \n" \ |
4ecac3fd | 853 | "667: \n\t" \ |
5e520e62 | 854 | cleanup_insn "\n\t" \ |
b7c4145b AK |
855 | "cmpb $0, kvm_rebooting \n\t" \ |
856 | "jne 668b \n\t" \ | |
8ceed347 | 857 | __ASM_SIZE(push) " $666b \n\t" \ |
b7c4145b | 858 | "call kvm_spurious_fault \n\t" \ |
4ecac3fd AK |
859 | ".popsection \n\t" \ |
860 | ".pushsection __ex_table, \"a\" \n\t" \ | |
8ceed347 | 861 | _ASM_PTR " 666b, 667b \n\t" \ |
4ecac3fd AK |
862 | ".popsection" |
863 | ||
5e520e62 AK |
864 | #define __kvm_handle_fault_on_reboot(insn) \ |
865 | ____kvm_handle_fault_on_reboot(insn, "") | |
866 | ||
e930bffe AA |
867 | #define KVM_ARCH_WANT_MMU_NOTIFIER |
868 | int kvm_unmap_hva(struct kvm *kvm, unsigned long hva); | |
869 | int kvm_age_hva(struct kvm *kvm, unsigned long hva); | |
8ee53820 | 870 | int kvm_test_age_hva(struct kvm *kvm, unsigned long hva); |
3da0dd43 | 871 | void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte); |
82725b20 | 872 | int cpuid_maxphyaddr(struct kvm_vcpu *vcpu); |
a1b37100 GN |
873 | int kvm_cpu_has_interrupt(struct kvm_vcpu *vcpu); |
874 | int kvm_arch_interrupt_allowed(struct kvm_vcpu *vcpu); | |
0b71785d | 875 | int kvm_cpu_get_interrupt(struct kvm_vcpu *v); |
e930bffe | 876 | |
18863bdd | 877 | void kvm_define_shared_msr(unsigned index, u32 msr); |
d5696725 | 878 | void kvm_set_shared_msr(unsigned index, u64 val, u64 mask); |
18863bdd | 879 | |
f92653ee JK |
880 | bool kvm_is_linear_rip(struct kvm_vcpu *vcpu, unsigned long linear_rip); |
881 | ||
af585b92 GN |
882 | void kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu, |
883 | struct kvm_async_pf *work); | |
884 | void kvm_arch_async_page_present(struct kvm_vcpu *vcpu, | |
885 | struct kvm_async_pf *work); | |
56028d08 GN |
886 | void kvm_arch_async_page_ready(struct kvm_vcpu *vcpu, |
887 | struct kvm_async_pf *work); | |
7c90705b | 888 | bool kvm_arch_can_inject_async_page_present(struct kvm_vcpu *vcpu); |
af585b92 GN |
889 | extern bool kvm_find_async_pf_gfn(struct kvm_vcpu *vcpu, gfn_t gfn); |
890 | ||
db8fcefa AP |
891 | void kvm_complete_insn_gp(struct kvm_vcpu *vcpu, int err); |
892 | ||
1965aae3 | 893 | #endif /* _ASM_X86_KVM_HOST_H */ |