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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> |
34c16eec ZX |
18 | |
19 | #include <linux/kvm.h> | |
20 | #include <linux/kvm_para.h> | |
edf88417 | 21 | #include <linux/kvm_types.h> |
34c16eec | 22 | |
50d0a0f9 | 23 | #include <asm/pvclock-abi.h> |
e01a1b57 | 24 | #include <asm/desc.h> |
0bed3b56 | 25 | #include <asm/mtrr.h> |
9962d032 | 26 | #include <asm/msr-index.h> |
e01a1b57 | 27 | |
69a9f69b AK |
28 | #define KVM_MAX_VCPUS 16 |
29 | #define KVM_MEMORY_SLOTS 32 | |
30 | /* memory slots that does not exposed to userspace */ | |
31 | #define KVM_PRIVATE_MEM_SLOTS 4 | |
32 | ||
33 | #define KVM_PIO_PAGE_OFFSET 1 | |
542472b5 | 34 | #define KVM_COALESCED_MMIO_PAGE_OFFSET 2 |
69a9f69b | 35 | |
cd6e8f87 ZX |
36 | #define CR3_PAE_RESERVED_BITS ((X86_CR3_PWT | X86_CR3_PCD) - 1) |
37 | #define CR3_NONPAE_RESERVED_BITS ((PAGE_SIZE-1) & ~(X86_CR3_PWT | X86_CR3_PCD)) | |
7d76b4d3 JP |
38 | #define CR3_L_MODE_RESERVED_BITS (CR3_NONPAE_RESERVED_BITS | \ |
39 | 0xFFFFFF0000000000ULL) | |
cd6e8f87 | 40 | |
3a624e29 NK |
41 | #define KVM_GUEST_CR0_MASK_UNRESTRICTED_GUEST \ |
42 | (X86_CR0_WP | X86_CR0_NE | X86_CR0_NW | X86_CR0_CD) | |
43 | #define KVM_GUEST_CR0_MASK \ | |
44 | (KVM_GUEST_CR0_MASK_UNRESTRICTED_GUEST | X86_CR0_PG | X86_CR0_PE) | |
45 | #define KVM_VM_CR0_ALWAYS_ON_UNRESTRICTED_GUEST \ | |
46 | (X86_CR0_WP | X86_CR0_NE | X86_CR0_TS | X86_CR0_MP) | |
7d76b4d3 | 47 | #define KVM_VM_CR0_ALWAYS_ON \ |
3a624e29 | 48 | (KVM_VM_CR0_ALWAYS_ON_UNRESTRICTED_GUEST | X86_CR0_PG | X86_CR0_PE) |
7d76b4d3 | 49 | #define KVM_GUEST_CR4_MASK \ |
cd6e8f87 ZX |
50 | (X86_CR4_VME | X86_CR4_PSE | X86_CR4_PAE | X86_CR4_PGE | X86_CR4_VMXE) |
51 | #define KVM_PMODE_VM_CR4_ALWAYS_ON (X86_CR4_PAE | X86_CR4_VMXE) | |
52 | #define KVM_RMODE_VM_CR4_ALWAYS_ON (X86_CR4_VME | X86_CR4_PAE | X86_CR4_VMXE) | |
53 | ||
54 | #define INVALID_PAGE (~(hpa_t)0) | |
55 | #define UNMAPPED_GVA (~(gpa_t)0) | |
56 | ||
ec04b260 JR |
57 | /* KVM Hugepage definitions for x86 */ |
58 | #define KVM_NR_PAGE_SIZES 2 | |
59 | #define KVM_HPAGE_SHIFT(x) (PAGE_SHIFT + (((x) - 1) * 9)) | |
60 | #define KVM_HPAGE_SIZE(x) (1UL << KVM_HPAGE_SHIFT(x)) | |
61 | #define KVM_HPAGE_MASK(x) (~(KVM_HPAGE_SIZE(x) - 1)) | |
62 | #define KVM_PAGES_PER_HPAGE(x) (KVM_HPAGE_SIZE(x) / PAGE_SIZE) | |
05da4558 | 63 | |
cd6e8f87 | 64 | #define DE_VECTOR 0 |
19bd8afd | 65 | #define DB_VECTOR 1 |
77ab6db0 JK |
66 | #define BP_VECTOR 3 |
67 | #define OF_VECTOR 4 | |
68 | #define BR_VECTOR 5 | |
cd6e8f87 ZX |
69 | #define UD_VECTOR 6 |
70 | #define NM_VECTOR 7 | |
71 | #define DF_VECTOR 8 | |
72 | #define TS_VECTOR 10 | |
73 | #define NP_VECTOR 11 | |
74 | #define SS_VECTOR 12 | |
75 | #define GP_VECTOR 13 | |
76 | #define PF_VECTOR 14 | |
77ab6db0 | 77 | #define MF_VECTOR 16 |
53371b50 | 78 | #define MC_VECTOR 18 |
cd6e8f87 ZX |
79 | |
80 | #define SELECTOR_TI_MASK (1 << 2) | |
81 | #define SELECTOR_RPL_MASK 0x03 | |
82 | ||
83 | #define IOPL_SHIFT 12 | |
84 | ||
d69fb81f ZX |
85 | #define KVM_ALIAS_SLOTS 4 |
86 | ||
d657a98e ZX |
87 | #define KVM_PERMILLE_MMU_PAGES 20 |
88 | #define KVM_MIN_ALLOC_MMU_PAGES 64 | |
1ae0a13d DE |
89 | #define KVM_MMU_HASH_SHIFT 10 |
90 | #define KVM_NUM_MMU_PAGES (1 << KVM_MMU_HASH_SHIFT) | |
d657a98e ZX |
91 | #define KVM_MIN_FREE_MMU_PAGES 5 |
92 | #define KVM_REFILL_PAGES 25 | |
93 | #define KVM_MAX_CPUID_ENTRIES 40 | |
0bed3b56 | 94 | #define KVM_NR_FIXED_MTRR_REGION 88 |
9ba075a6 | 95 | #define KVM_NR_VAR_MTRR 8 |
d657a98e | 96 | |
e9b11c17 ZX |
97 | extern spinlock_t kvm_lock; |
98 | extern struct list_head vm_list; | |
99 | ||
d657a98e ZX |
100 | struct kvm_vcpu; |
101 | struct kvm; | |
102 | ||
5fdbf976 | 103 | enum kvm_reg { |
2b3ccfa0 ZX |
104 | VCPU_REGS_RAX = 0, |
105 | VCPU_REGS_RCX = 1, | |
106 | VCPU_REGS_RDX = 2, | |
107 | VCPU_REGS_RBX = 3, | |
108 | VCPU_REGS_RSP = 4, | |
109 | VCPU_REGS_RBP = 5, | |
110 | VCPU_REGS_RSI = 6, | |
111 | VCPU_REGS_RDI = 7, | |
112 | #ifdef CONFIG_X86_64 | |
113 | VCPU_REGS_R8 = 8, | |
114 | VCPU_REGS_R9 = 9, | |
115 | VCPU_REGS_R10 = 10, | |
116 | VCPU_REGS_R11 = 11, | |
117 | VCPU_REGS_R12 = 12, | |
118 | VCPU_REGS_R13 = 13, | |
119 | VCPU_REGS_R14 = 14, | |
120 | VCPU_REGS_R15 = 15, | |
121 | #endif | |
5fdbf976 | 122 | VCPU_REGS_RIP, |
2b3ccfa0 ZX |
123 | NR_VCPU_REGS |
124 | }; | |
125 | ||
6de4f3ad AK |
126 | enum kvm_reg_ex { |
127 | VCPU_EXREG_PDPTR = NR_VCPU_REGS, | |
128 | }; | |
129 | ||
2b3ccfa0 | 130 | enum { |
81609e3e | 131 | VCPU_SREG_ES, |
2b3ccfa0 | 132 | VCPU_SREG_CS, |
81609e3e | 133 | VCPU_SREG_SS, |
2b3ccfa0 | 134 | VCPU_SREG_DS, |
2b3ccfa0 ZX |
135 | VCPU_SREG_FS, |
136 | VCPU_SREG_GS, | |
2b3ccfa0 ZX |
137 | VCPU_SREG_TR, |
138 | VCPU_SREG_LDTR, | |
139 | }; | |
140 | ||
edf88417 | 141 | #include <asm/kvm_x86_emulate.h> |
2b3ccfa0 | 142 | |
d657a98e ZX |
143 | #define KVM_NR_MEM_OBJS 40 |
144 | ||
42dbaa5a JK |
145 | #define KVM_NR_DB_REGS 4 |
146 | ||
147 | #define DR6_BD (1 << 13) | |
148 | #define DR6_BS (1 << 14) | |
149 | #define DR6_FIXED_1 0xffff0ff0 | |
150 | #define DR6_VOLATILE 0x0000e00f | |
151 | ||
152 | #define DR7_BP_EN_MASK 0x000000ff | |
153 | #define DR7_GE (1 << 9) | |
154 | #define DR7_GD (1 << 13) | |
155 | #define DR7_FIXED_1 0x00000400 | |
156 | #define DR7_VOLATILE 0xffff23ff | |
157 | ||
d657a98e ZX |
158 | /* |
159 | * We don't want allocation failures within the mmu code, so we preallocate | |
160 | * enough memory for a single page fault in a cache. | |
161 | */ | |
162 | struct kvm_mmu_memory_cache { | |
163 | int nobjs; | |
164 | void *objects[KVM_NR_MEM_OBJS]; | |
165 | }; | |
166 | ||
167 | #define NR_PTE_CHAIN_ENTRIES 5 | |
168 | ||
169 | struct kvm_pte_chain { | |
170 | u64 *parent_ptes[NR_PTE_CHAIN_ENTRIES]; | |
171 | struct hlist_node link; | |
172 | }; | |
173 | ||
174 | /* | |
175 | * kvm_mmu_page_role, below, is defined as: | |
176 | * | |
177 | * bits 0:3 - total guest paging levels (2-4, or zero for real mode) | |
178 | * bits 4:7 - page table level for this shadow (1-4) | |
179 | * bits 8:9 - page table quadrant for 2-level guests | |
f6e2c02b AK |
180 | * bit 16 - direct mapping of virtual to physical mapping at gfn |
181 | * used for real mode and two-dimensional paging | |
d657a98e ZX |
182 | * bits 17:19 - common access permissions for all ptes in this shadow page |
183 | */ | |
184 | union kvm_mmu_page_role { | |
185 | unsigned word; | |
186 | struct { | |
7d76b4d3 JP |
187 | unsigned glevels:4; |
188 | unsigned level:4; | |
189 | unsigned quadrant:2; | |
190 | unsigned pad_for_nice_hex_output:6; | |
f6e2c02b | 191 | unsigned direct:1; |
7d76b4d3 | 192 | unsigned access:3; |
2e53d63a | 193 | unsigned invalid:1; |
2f0b3d60 | 194 | unsigned cr4_pge:1; |
9645bb56 | 195 | unsigned nxe:1; |
d657a98e ZX |
196 | }; |
197 | }; | |
198 | ||
199 | struct kvm_mmu_page { | |
200 | struct list_head link; | |
201 | struct hlist_node hash_link; | |
202 | ||
6cffe8ca MT |
203 | struct list_head oos_link; |
204 | ||
d657a98e ZX |
205 | /* |
206 | * The following two entries are used to key the shadow page in the | |
207 | * hash table. | |
208 | */ | |
209 | gfn_t gfn; | |
210 | union kvm_mmu_page_role role; | |
211 | ||
212 | u64 *spt; | |
213 | /* hold the gfn of each spte inside spt */ | |
214 | gfn_t *gfns; | |
291f26bc SY |
215 | /* |
216 | * One bit set per slot which has memory | |
217 | * in this shadow page. | |
218 | */ | |
219 | DECLARE_BITMAP(slot_bitmap, KVM_MEMORY_SLOTS + KVM_PRIVATE_MEM_SLOTS); | |
d657a98e ZX |
220 | int multimapped; /* More than one parent_pte? */ |
221 | int root_count; /* Currently serving as active root */ | |
4731d4c7 | 222 | bool unsync; |
60c8aec6 | 223 | unsigned int unsync_children; |
d657a98e ZX |
224 | union { |
225 | u64 *parent_pte; /* !multimapped */ | |
226 | struct hlist_head parent_ptes; /* multimapped, kvm_pte_chain */ | |
227 | }; | |
0074ff63 | 228 | DECLARE_BITMAP(unsync_child_bitmap, 512); |
d657a98e ZX |
229 | }; |
230 | ||
6ad18fba DH |
231 | struct kvm_pv_mmu_op_buffer { |
232 | void *ptr; | |
233 | unsigned len; | |
234 | unsigned processed; | |
235 | char buf[512] __aligned(sizeof(long)); | |
236 | }; | |
237 | ||
1c08364c AK |
238 | struct kvm_pio_request { |
239 | unsigned long count; | |
240 | int cur_count; | |
241 | gva_t guest_gva; | |
242 | int in; | |
243 | int port; | |
244 | int size; | |
245 | int string; | |
246 | int down; | |
247 | int rep; | |
248 | }; | |
249 | ||
d657a98e ZX |
250 | /* |
251 | * x86 supports 3 paging modes (4-level 64-bit, 3-level 64-bit, and 2-level | |
252 | * 32-bit). The kvm_mmu structure abstracts the details of the current mmu | |
253 | * mode. | |
254 | */ | |
255 | struct kvm_mmu { | |
256 | void (*new_cr3)(struct kvm_vcpu *vcpu); | |
257 | int (*page_fault)(struct kvm_vcpu *vcpu, gva_t gva, u32 err); | |
258 | void (*free)(struct kvm_vcpu *vcpu); | |
259 | gpa_t (*gva_to_gpa)(struct kvm_vcpu *vcpu, gva_t gva); | |
260 | void (*prefetch_page)(struct kvm_vcpu *vcpu, | |
261 | struct kvm_mmu_page *page); | |
e8bc217a MT |
262 | int (*sync_page)(struct kvm_vcpu *vcpu, |
263 | struct kvm_mmu_page *sp); | |
a7052897 | 264 | void (*invlpg)(struct kvm_vcpu *vcpu, gva_t gva); |
d657a98e ZX |
265 | hpa_t root_hpa; |
266 | int root_level; | |
267 | int shadow_root_level; | |
a770f6f2 | 268 | union kvm_mmu_page_role base_role; |
d657a98e ZX |
269 | |
270 | u64 *pae_root; | |
82725b20 | 271 | u64 rsvd_bits_mask[2][4]; |
d657a98e ZX |
272 | }; |
273 | ||
ad312c7c | 274 | struct kvm_vcpu_arch { |
34c16eec | 275 | u64 host_tsc; |
5fdbf976 MT |
276 | /* |
277 | * rip and regs accesses must go through | |
278 | * kvm_{register,rip}_{read,write} functions. | |
279 | */ | |
280 | unsigned long regs[NR_VCPU_REGS]; | |
281 | u32 regs_avail; | |
282 | u32 regs_dirty; | |
34c16eec ZX |
283 | |
284 | unsigned long cr0; | |
285 | unsigned long cr2; | |
286 | unsigned long cr3; | |
287 | unsigned long cr4; | |
288 | unsigned long cr8; | |
1371d904 | 289 | u32 hflags; |
34c16eec ZX |
290 | u64 pdptrs[4]; /* pae */ |
291 | u64 shadow_efer; | |
292 | u64 apic_base; | |
293 | struct kvm_lapic *apic; /* kernel irqchip context */ | |
e1035715 | 294 | int32_t apic_arb_prio; |
34c16eec ZX |
295 | int mp_state; |
296 | int sipi_vector; | |
297 | u64 ia32_misc_enable_msr; | |
b209749f | 298 | bool tpr_access_reporting; |
34c16eec ZX |
299 | |
300 | struct kvm_mmu mmu; | |
6ad18fba DH |
301 | /* only needed in kvm_pv_mmu_op() path, but it's hot so |
302 | * put it here to avoid allocation */ | |
303 | struct kvm_pv_mmu_op_buffer mmu_op_buffer; | |
34c16eec ZX |
304 | |
305 | struct kvm_mmu_memory_cache mmu_pte_chain_cache; | |
306 | struct kvm_mmu_memory_cache mmu_rmap_desc_cache; | |
307 | struct kvm_mmu_memory_cache mmu_page_cache; | |
308 | struct kvm_mmu_memory_cache mmu_page_header_cache; | |
309 | ||
310 | gfn_t last_pt_write_gfn; | |
311 | int last_pt_write_count; | |
312 | u64 *last_pte_updated; | |
1b7fcd32 | 313 | gfn_t last_pte_gfn; |
34c16eec | 314 | |
d7824fff | 315 | struct { |
35149e21 AL |
316 | gfn_t gfn; /* presumed gfn during guest pte update */ |
317 | pfn_t pfn; /* pfn corresponding to that gfn */ | |
05da4558 | 318 | int largepage; |
e930bffe | 319 | unsigned long mmu_seq; |
d7824fff AK |
320 | } update_pte; |
321 | ||
34c16eec ZX |
322 | struct i387_fxsave_struct host_fx_image; |
323 | struct i387_fxsave_struct guest_fx_image; | |
324 | ||
325 | gva_t mmio_fault_cr2; | |
326 | struct kvm_pio_request pio; | |
327 | void *pio_data; | |
328 | ||
66fd3f7f GN |
329 | u8 event_exit_inst_len; |
330 | ||
298101da AK |
331 | struct kvm_queued_exception { |
332 | bool pending; | |
333 | bool has_error_code; | |
334 | u8 nr; | |
335 | u32 error_code; | |
336 | } exception; | |
337 | ||
937a7eae AK |
338 | struct kvm_queued_interrupt { |
339 | bool pending; | |
66fd3f7f | 340 | bool soft; |
937a7eae AK |
341 | u8 nr; |
342 | } interrupt; | |
343 | ||
34c16eec ZX |
344 | int halt_request; /* real mode on Intel only */ |
345 | ||
346 | int cpuid_nent; | |
07716717 | 347 | struct kvm_cpuid_entry2 cpuid_entries[KVM_MAX_CPUID_ENTRIES]; |
34c16eec ZX |
348 | /* emulate context */ |
349 | ||
350 | struct x86_emulate_ctxt emulate_ctxt; | |
18068523 GOC |
351 | |
352 | gpa_t time; | |
50d0a0f9 GH |
353 | struct pvclock_vcpu_time_info hv_clock; |
354 | unsigned int hv_clock_tsc_khz; | |
18068523 GOC |
355 | unsigned int time_offset; |
356 | struct page *time_page; | |
3419ffc8 | 357 | |
44c11430 | 358 | bool singlestep; /* guest is single stepped by KVM */ |
3419ffc8 | 359 | bool nmi_pending; |
668f612f | 360 | bool nmi_injected; |
9ba075a6 | 361 | |
0bed3b56 SY |
362 | struct mtrr_state_type mtrr_state; |
363 | u32 pat; | |
42dbaa5a JK |
364 | |
365 | int switch_db_regs; | |
366 | unsigned long host_db[KVM_NR_DB_REGS]; | |
367 | unsigned long host_dr6; | |
368 | unsigned long host_dr7; | |
369 | unsigned long db[KVM_NR_DB_REGS]; | |
370 | unsigned long dr6; | |
371 | unsigned long dr7; | |
372 | unsigned long eff_db[KVM_NR_DB_REGS]; | |
890ca9ae HY |
373 | |
374 | u64 mcg_cap; | |
375 | u64 mcg_status; | |
376 | u64 mcg_ctl; | |
377 | u64 *mce_banks; | |
34c16eec ZX |
378 | }; |
379 | ||
d69fb81f ZX |
380 | struct kvm_mem_alias { |
381 | gfn_t base_gfn; | |
382 | unsigned long npages; | |
383 | gfn_t target_gfn; | |
384 | }; | |
385 | ||
386 | struct kvm_arch{ | |
387 | int naliases; | |
388 | struct kvm_mem_alias aliases[KVM_ALIAS_SLOTS]; | |
f05e70ac ZX |
389 | |
390 | unsigned int n_free_mmu_pages; | |
391 | unsigned int n_requested_mmu_pages; | |
392 | unsigned int n_alloc_mmu_pages; | |
393 | struct hlist_head mmu_page_hash[KVM_NUM_MMU_PAGES]; | |
394 | /* | |
395 | * Hash table of struct kvm_mmu_page. | |
396 | */ | |
397 | struct list_head active_mmu_pages; | |
4d5c5d0f | 398 | struct list_head assigned_dev_head; |
19de40a8 | 399 | struct iommu_domain *iommu_domain; |
522c68c4 | 400 | int iommu_flags; |
d7deeeb0 ZX |
401 | struct kvm_pic *vpic; |
402 | struct kvm_ioapic *vioapic; | |
7837699f | 403 | struct kvm_pit *vpit; |
564f1537 | 404 | struct hlist_head irq_ack_notifier_list; |
cc6e462c | 405 | int vapics_in_nmi_mode; |
bfc6d222 | 406 | |
bfc6d222 ZX |
407 | unsigned int tss_addr; |
408 | struct page *apic_access_page; | |
18068523 GOC |
409 | |
410 | gpa_t wall_clock; | |
b7ebfb05 SY |
411 | |
412 | struct page *ept_identity_pagetable; | |
413 | bool ept_identity_pagetable_done; | |
5550af4d SY |
414 | |
415 | unsigned long irq_sources_bitmap; | |
416 | unsigned long irq_states[KVM_IOAPIC_NUM_PINS]; | |
53f658b3 | 417 | u64 vm_init_tsc; |
d69fb81f ZX |
418 | }; |
419 | ||
0711456c ZX |
420 | struct kvm_vm_stat { |
421 | u32 mmu_shadow_zapped; | |
422 | u32 mmu_pte_write; | |
423 | u32 mmu_pte_updated; | |
424 | u32 mmu_pde_zapped; | |
425 | u32 mmu_flooded; | |
426 | u32 mmu_recycled; | |
dfc5aa00 | 427 | u32 mmu_cache_miss; |
4731d4c7 | 428 | u32 mmu_unsync; |
0711456c | 429 | u32 remote_tlb_flush; |
05da4558 | 430 | u32 lpages; |
0711456c ZX |
431 | }; |
432 | ||
77b4c255 ZX |
433 | struct kvm_vcpu_stat { |
434 | u32 pf_fixed; | |
435 | u32 pf_guest; | |
436 | u32 tlb_flush; | |
437 | u32 invlpg; | |
438 | ||
439 | u32 exits; | |
440 | u32 io_exits; | |
441 | u32 mmio_exits; | |
442 | u32 signal_exits; | |
443 | u32 irq_window_exits; | |
f08864b4 | 444 | u32 nmi_window_exits; |
77b4c255 ZX |
445 | u32 halt_exits; |
446 | u32 halt_wakeup; | |
447 | u32 request_irq_exits; | |
448 | u32 irq_exits; | |
449 | u32 host_state_reload; | |
450 | u32 efer_reload; | |
451 | u32 fpu_reload; | |
452 | u32 insn_emulation; | |
453 | u32 insn_emulation_fail; | |
f11c3a8d | 454 | u32 hypercalls; |
fa89a817 | 455 | u32 irq_injections; |
c4abb7c9 | 456 | u32 nmi_injections; |
77b4c255 | 457 | }; |
ad312c7c | 458 | |
e01a1b57 HB |
459 | struct descriptor_table { |
460 | u16 limit; | |
461 | unsigned long base; | |
462 | } __attribute__((packed)); | |
463 | ||
ea4a5ff8 ZX |
464 | struct kvm_x86_ops { |
465 | int (*cpu_has_kvm_support)(void); /* __init */ | |
466 | int (*disabled_by_bios)(void); /* __init */ | |
467 | void (*hardware_enable)(void *dummy); /* __init */ | |
468 | void (*hardware_disable)(void *dummy); | |
469 | void (*check_processor_compatibility)(void *rtn); | |
470 | int (*hardware_setup)(void); /* __init */ | |
471 | void (*hardware_unsetup)(void); /* __exit */ | |
774ead3a | 472 | bool (*cpu_has_accelerated_tpr)(void); |
ea4a5ff8 ZX |
473 | |
474 | /* Create, but do not attach this VCPU */ | |
475 | struct kvm_vcpu *(*vcpu_create)(struct kvm *kvm, unsigned id); | |
476 | void (*vcpu_free)(struct kvm_vcpu *vcpu); | |
477 | int (*vcpu_reset)(struct kvm_vcpu *vcpu); | |
478 | ||
479 | void (*prepare_guest_switch)(struct kvm_vcpu *vcpu); | |
480 | void (*vcpu_load)(struct kvm_vcpu *vcpu, int cpu); | |
481 | void (*vcpu_put)(struct kvm_vcpu *vcpu); | |
ea4a5ff8 ZX |
482 | |
483 | int (*set_guest_debug)(struct kvm_vcpu *vcpu, | |
d0bfb940 | 484 | struct kvm_guest_debug *dbg); |
ea4a5ff8 ZX |
485 | int (*get_msr)(struct kvm_vcpu *vcpu, u32 msr_index, u64 *pdata); |
486 | int (*set_msr)(struct kvm_vcpu *vcpu, u32 msr_index, u64 data); | |
487 | u64 (*get_segment_base)(struct kvm_vcpu *vcpu, int seg); | |
488 | void (*get_segment)(struct kvm_vcpu *vcpu, | |
489 | struct kvm_segment *var, int seg); | |
2e4d2653 | 490 | int (*get_cpl)(struct kvm_vcpu *vcpu); |
ea4a5ff8 ZX |
491 | void (*set_segment)(struct kvm_vcpu *vcpu, |
492 | struct kvm_segment *var, int seg); | |
493 | void (*get_cs_db_l_bits)(struct kvm_vcpu *vcpu, int *db, int *l); | |
494 | void (*decache_cr4_guest_bits)(struct kvm_vcpu *vcpu); | |
495 | void (*set_cr0)(struct kvm_vcpu *vcpu, unsigned long cr0); | |
496 | void (*set_cr3)(struct kvm_vcpu *vcpu, unsigned long cr3); | |
497 | void (*set_cr4)(struct kvm_vcpu *vcpu, unsigned long cr4); | |
498 | void (*set_efer)(struct kvm_vcpu *vcpu, u64 efer); | |
499 | void (*get_idt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt); | |
500 | void (*set_idt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt); | |
501 | void (*get_gdt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt); | |
502 | void (*set_gdt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt); | |
503 | unsigned long (*get_dr)(struct kvm_vcpu *vcpu, int dr); | |
504 | void (*set_dr)(struct kvm_vcpu *vcpu, int dr, unsigned long value, | |
505 | int *exception); | |
5fdbf976 | 506 | void (*cache_reg)(struct kvm_vcpu *vcpu, enum kvm_reg reg); |
ea4a5ff8 ZX |
507 | unsigned long (*get_rflags)(struct kvm_vcpu *vcpu); |
508 | void (*set_rflags)(struct kvm_vcpu *vcpu, unsigned long rflags); | |
509 | ||
510 | void (*tlb_flush)(struct kvm_vcpu *vcpu); | |
ea4a5ff8 | 511 | |
ea4a5ff8 ZX |
512 | void (*run)(struct kvm_vcpu *vcpu, struct kvm_run *run); |
513 | int (*handle_exit)(struct kvm_run *run, struct kvm_vcpu *vcpu); | |
514 | void (*skip_emulated_instruction)(struct kvm_vcpu *vcpu); | |
2809f5d2 GC |
515 | void (*set_interrupt_shadow)(struct kvm_vcpu *vcpu, int mask); |
516 | u32 (*get_interrupt_shadow)(struct kvm_vcpu *vcpu, int mask); | |
ea4a5ff8 ZX |
517 | void (*patch_hypercall)(struct kvm_vcpu *vcpu, |
518 | unsigned char *hypercall_addr); | |
66fd3f7f | 519 | void (*set_irq)(struct kvm_vcpu *vcpu); |
95ba8273 | 520 | void (*set_nmi)(struct kvm_vcpu *vcpu); |
298101da AK |
521 | void (*queue_exception)(struct kvm_vcpu *vcpu, unsigned nr, |
522 | bool has_error_code, u32 error_code); | |
78646121 | 523 | int (*interrupt_allowed)(struct kvm_vcpu *vcpu); |
95ba8273 GN |
524 | int (*nmi_allowed)(struct kvm_vcpu *vcpu); |
525 | void (*enable_nmi_window)(struct kvm_vcpu *vcpu); | |
526 | void (*enable_irq_window)(struct kvm_vcpu *vcpu); | |
527 | void (*update_cr8_intercept)(struct kvm_vcpu *vcpu, int tpr, int irr); | |
ea4a5ff8 | 528 | int (*set_tss_addr)(struct kvm *kvm, unsigned int addr); |
67253af5 | 529 | int (*get_tdp_level)(void); |
4b12f0de | 530 | u64 (*get_mt_mask)(struct kvm_vcpu *vcpu, gfn_t gfn, bool is_mmio); |
229456fc | 531 | const struct trace_print_flags *exit_reasons_str; |
ea4a5ff8 ZX |
532 | }; |
533 | ||
97896d04 ZX |
534 | extern struct kvm_x86_ops *kvm_x86_ops; |
535 | ||
54f1585a ZX |
536 | int kvm_mmu_module_init(void); |
537 | void kvm_mmu_module_exit(void); | |
538 | ||
539 | void kvm_mmu_destroy(struct kvm_vcpu *vcpu); | |
540 | int kvm_mmu_create(struct kvm_vcpu *vcpu); | |
541 | int kvm_mmu_setup(struct kvm_vcpu *vcpu); | |
542 | void kvm_mmu_set_nonpresent_ptes(u64 trap_pte, u64 notrap_pte); | |
7b52345e SY |
543 | void kvm_mmu_set_base_ptes(u64 base_pte); |
544 | void kvm_mmu_set_mask_ptes(u64 user_mask, u64 accessed_mask, | |
4b12f0de | 545 | u64 dirty_mask, u64 nx_mask, u64 x_mask); |
54f1585a ZX |
546 | |
547 | int kvm_mmu_reset_context(struct kvm_vcpu *vcpu); | |
548 | void kvm_mmu_slot_remove_write_access(struct kvm *kvm, int slot); | |
549 | void kvm_mmu_zap_all(struct kvm *kvm); | |
3ad82a7e | 550 | unsigned int kvm_mmu_calculate_mmu_pages(struct kvm *kvm); |
54f1585a ZX |
551 | void kvm_mmu_change_mmu_pages(struct kvm *kvm, unsigned int kvm_nr_mmu_pages); |
552 | ||
cc4b6871 JR |
553 | int load_pdptrs(struct kvm_vcpu *vcpu, unsigned long cr3); |
554 | ||
3200f405 | 555 | int emulator_write_phys(struct kvm_vcpu *vcpu, gpa_t gpa, |
9f811285 | 556 | const void *val, int bytes); |
2f333bcb MT |
557 | int kvm_pv_mmu_op(struct kvm_vcpu *vcpu, unsigned long bytes, |
558 | gpa_t addr, unsigned long *ret); | |
4b12f0de | 559 | u8 kvm_get_guest_memory_type(struct kvm_vcpu *vcpu, gfn_t gfn); |
2f333bcb MT |
560 | |
561 | extern bool tdp_enabled; | |
9f811285 | 562 | |
54f1585a ZX |
563 | enum emulation_result { |
564 | EMULATE_DONE, /* no further processing */ | |
565 | EMULATE_DO_MMIO, /* kvm_run filled with mmio request */ | |
566 | EMULATE_FAIL, /* can't emulate this instruction */ | |
567 | }; | |
568 | ||
571008da SY |
569 | #define EMULTYPE_NO_DECODE (1 << 0) |
570 | #define EMULTYPE_TRAP_UD (1 << 1) | |
ba8afb6b | 571 | #define EMULTYPE_SKIP (1 << 2) |
54f1585a | 572 | int emulate_instruction(struct kvm_vcpu *vcpu, struct kvm_run *run, |
571008da | 573 | unsigned long cr2, u16 error_code, int emulation_type); |
54f1585a ZX |
574 | void kvm_report_emulation_failure(struct kvm_vcpu *cvpu, const char *context); |
575 | void realmode_lgdt(struct kvm_vcpu *vcpu, u16 size, unsigned long address); | |
576 | void realmode_lidt(struct kvm_vcpu *vcpu, u16 size, unsigned long address); | |
577 | void realmode_lmsw(struct kvm_vcpu *vcpu, unsigned long msw, | |
578 | unsigned long *rflags); | |
579 | ||
580 | unsigned long realmode_get_cr(struct kvm_vcpu *vcpu, int cr); | |
581 | void realmode_set_cr(struct kvm_vcpu *vcpu, int cr, unsigned long value, | |
582 | unsigned long *rflags); | |
f2b4b7dd | 583 | void kvm_enable_efer_bits(u64); |
54f1585a ZX |
584 | int kvm_get_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 *data); |
585 | int kvm_set_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 data); | |
586 | ||
587 | struct x86_emulate_ctxt; | |
588 | ||
589 | int kvm_emulate_pio(struct kvm_vcpu *vcpu, struct kvm_run *run, int in, | |
590 | int size, unsigned port); | |
591 | int kvm_emulate_pio_string(struct kvm_vcpu *vcpu, struct kvm_run *run, int in, | |
592 | int size, unsigned long count, int down, | |
593 | gva_t address, int rep, unsigned port); | |
594 | void kvm_emulate_cpuid(struct kvm_vcpu *vcpu); | |
595 | int kvm_emulate_halt(struct kvm_vcpu *vcpu); | |
596 | int emulate_invlpg(struct kvm_vcpu *vcpu, gva_t address); | |
597 | int emulate_clts(struct kvm_vcpu *vcpu); | |
598 | int emulator_get_dr(struct x86_emulate_ctxt *ctxt, int dr, | |
599 | unsigned long *dest); | |
600 | int emulator_set_dr(struct x86_emulate_ctxt *ctxt, int dr, | |
601 | unsigned long value); | |
602 | ||
3e6e0aab GT |
603 | void kvm_get_segment(struct kvm_vcpu *vcpu, struct kvm_segment *var, int seg); |
604 | int kvm_load_segment_descriptor(struct kvm_vcpu *vcpu, u16 selector, | |
605 | int type_bits, int seg); | |
606 | ||
37817f29 IE |
607 | int kvm_task_switch(struct kvm_vcpu *vcpu, u16 tss_selector, int reason); |
608 | ||
2d3ad1f4 | 609 | void kvm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0); |
9c20456a JR |
610 | void kvm_set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3); |
611 | void kvm_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4); | |
612 | void kvm_set_cr8(struct kvm_vcpu *vcpu, unsigned long cr8); | |
2d3ad1f4 AK |
613 | unsigned long kvm_get_cr8(struct kvm_vcpu *vcpu); |
614 | void kvm_lmsw(struct kvm_vcpu *vcpu, unsigned long msw); | |
54f1585a ZX |
615 | void kvm_get_cs_db_l_bits(struct kvm_vcpu *vcpu, int *db, int *l); |
616 | ||
617 | int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata); | |
618 | int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data); | |
619 | ||
298101da AK |
620 | void kvm_queue_exception(struct kvm_vcpu *vcpu, unsigned nr); |
621 | void kvm_queue_exception_e(struct kvm_vcpu *vcpu, unsigned nr, u32 error_code); | |
c3c91fee AK |
622 | void kvm_inject_page_fault(struct kvm_vcpu *vcpu, unsigned long cr2, |
623 | u32 error_code); | |
298101da | 624 | |
4925663a | 625 | int kvm_pic_set_irq(void *opaque, int irq, int level); |
3de42dc0 | 626 | |
3419ffc8 SY |
627 | void kvm_inject_nmi(struct kvm_vcpu *vcpu); |
628 | ||
54f1585a ZX |
629 | void fx_init(struct kvm_vcpu *vcpu); |
630 | ||
54f1585a ZX |
631 | int emulator_write_emulated(unsigned long addr, |
632 | const void *val, | |
633 | unsigned int bytes, | |
634 | struct kvm_vcpu *vcpu); | |
635 | ||
636 | unsigned long segment_base(u16 selector); | |
637 | ||
d835dfec | 638 | void kvm_mmu_flush_tlb(struct kvm_vcpu *vcpu); |
54f1585a | 639 | void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa, |
ad218f85 MT |
640 | const u8 *new, int bytes, |
641 | bool guest_initiated); | |
54f1585a ZX |
642 | int kvm_mmu_unprotect_page_virt(struct kvm_vcpu *vcpu, gva_t gva); |
643 | void __kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu); | |
644 | int kvm_mmu_load(struct kvm_vcpu *vcpu); | |
645 | void kvm_mmu_unload(struct kvm_vcpu *vcpu); | |
0ba73cda | 646 | void kvm_mmu_sync_roots(struct kvm_vcpu *vcpu); |
54f1585a ZX |
647 | |
648 | int kvm_emulate_hypercall(struct kvm_vcpu *vcpu); | |
649 | ||
650 | int kvm_fix_hypercall(struct kvm_vcpu *vcpu); | |
651 | ||
3067714c | 652 | int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t gva, u32 error_code); |
a7052897 | 653 | void kvm_mmu_invlpg(struct kvm_vcpu *vcpu, gva_t gva); |
34c16eec | 654 | |
18552672 | 655 | void kvm_enable_tdp(void); |
5f4cb662 | 656 | void kvm_disable_tdp(void); |
18552672 | 657 | |
a03490ed | 658 | int load_pdptrs(struct kvm_vcpu *vcpu, unsigned long cr3); |
de7d789a | 659 | int complete_pio(struct kvm_vcpu *vcpu); |
ec6d273d | 660 | |
2843099f IE |
661 | struct kvm_memory_slot *gfn_to_memslot_unaliased(struct kvm *kvm, gfn_t gfn); |
662 | ||
ec6d273d ZX |
663 | static inline struct kvm_mmu_page *page_header(hpa_t shadow_page) |
664 | { | |
665 | struct page *page = pfn_to_page(shadow_page >> PAGE_SHIFT); | |
666 | ||
667 | return (struct kvm_mmu_page *)page_private(page); | |
668 | } | |
669 | ||
d6e88aec | 670 | static inline u16 kvm_read_fs(void) |
ec6d273d ZX |
671 | { |
672 | u16 seg; | |
673 | asm("mov %%fs, %0" : "=g"(seg)); | |
674 | return seg; | |
675 | } | |
676 | ||
d6e88aec | 677 | static inline u16 kvm_read_gs(void) |
ec6d273d ZX |
678 | { |
679 | u16 seg; | |
680 | asm("mov %%gs, %0" : "=g"(seg)); | |
681 | return seg; | |
682 | } | |
683 | ||
d6e88aec | 684 | static inline u16 kvm_read_ldt(void) |
ec6d273d ZX |
685 | { |
686 | u16 ldt; | |
687 | asm("sldt %0" : "=g"(ldt)); | |
688 | return ldt; | |
689 | } | |
690 | ||
d6e88aec | 691 | static inline void kvm_load_fs(u16 sel) |
ec6d273d ZX |
692 | { |
693 | asm("mov %0, %%fs" : : "rm"(sel)); | |
694 | } | |
695 | ||
d6e88aec | 696 | static inline void kvm_load_gs(u16 sel) |
ec6d273d ZX |
697 | { |
698 | asm("mov %0, %%gs" : : "rm"(sel)); | |
699 | } | |
700 | ||
d6e88aec | 701 | static inline void kvm_load_ldt(u16 sel) |
ec6d273d ZX |
702 | { |
703 | asm("lldt %0" : : "rm"(sel)); | |
704 | } | |
ec6d273d | 705 | |
d6e88aec | 706 | static inline void kvm_get_idt(struct descriptor_table *table) |
ec6d273d ZX |
707 | { |
708 | asm("sidt %0" : "=m"(*table)); | |
709 | } | |
710 | ||
d6e88aec | 711 | static inline void kvm_get_gdt(struct descriptor_table *table) |
ec6d273d ZX |
712 | { |
713 | asm("sgdt %0" : "=m"(*table)); | |
714 | } | |
715 | ||
d6e88aec | 716 | static inline unsigned long kvm_read_tr_base(void) |
ec6d273d ZX |
717 | { |
718 | u16 tr; | |
719 | asm("str %0" : "=g"(tr)); | |
720 | return segment_base(tr); | |
721 | } | |
722 | ||
723 | #ifdef CONFIG_X86_64 | |
724 | static inline unsigned long read_msr(unsigned long msr) | |
725 | { | |
726 | u64 value; | |
727 | ||
728 | rdmsrl(msr, value); | |
729 | return value; | |
730 | } | |
731 | #endif | |
732 | ||
d6e88aec | 733 | static inline void kvm_fx_save(struct i387_fxsave_struct *image) |
ec6d273d ZX |
734 | { |
735 | asm("fxsave (%0)":: "r" (image)); | |
736 | } | |
737 | ||
d6e88aec | 738 | static inline void kvm_fx_restore(struct i387_fxsave_struct *image) |
ec6d273d ZX |
739 | { |
740 | asm("fxrstor (%0)":: "r" (image)); | |
741 | } | |
742 | ||
d6e88aec | 743 | static inline void kvm_fx_finit(void) |
ec6d273d ZX |
744 | { |
745 | asm("finit"); | |
746 | } | |
747 | ||
748 | static inline u32 get_rdx_init_val(void) | |
749 | { | |
750 | return 0x600; /* P6 family */ | |
751 | } | |
752 | ||
c1a5d4f9 AK |
753 | static inline void kvm_inject_gp(struct kvm_vcpu *vcpu, u32 error_code) |
754 | { | |
755 | kvm_queue_exception_e(vcpu, GP_VECTOR, error_code); | |
756 | } | |
757 | ||
ec6d273d ZX |
758 | #define TSS_IOPB_BASE_OFFSET 0x66 |
759 | #define TSS_BASE_SIZE 0x68 | |
760 | #define TSS_IOPB_SIZE (65536 / 8) | |
761 | #define TSS_REDIRECTION_SIZE (256 / 8) | |
7d76b4d3 JP |
762 | #define RMODE_TSS_SIZE \ |
763 | (TSS_BASE_SIZE + TSS_REDIRECTION_SIZE + TSS_IOPB_SIZE + 1) | |
53e0aa7b | 764 | |
37817f29 IE |
765 | enum { |
766 | TASK_SWITCH_CALL = 0, | |
767 | TASK_SWITCH_IRET = 1, | |
768 | TASK_SWITCH_JMP = 2, | |
769 | TASK_SWITCH_GATE = 3, | |
770 | }; | |
771 | ||
1371d904 | 772 | #define HF_GIF_MASK (1 << 0) |
3d6368ef AG |
773 | #define HF_HIF_MASK (1 << 1) |
774 | #define HF_VINTR_MASK (1 << 2) | |
95ba8273 | 775 | #define HF_NMI_MASK (1 << 3) |
44c11430 | 776 | #define HF_IRET_MASK (1 << 4) |
1371d904 | 777 | |
4ecac3fd AK |
778 | /* |
779 | * Hardware virtualization extension instructions may fault if a | |
780 | * reboot turns off virtualization while processes are running. | |
781 | * Trap the fault and ignore the instruction if that happens. | |
782 | */ | |
783 | asmlinkage void kvm_handle_fault_on_reboot(void); | |
784 | ||
785 | #define __kvm_handle_fault_on_reboot(insn) \ | |
786 | "666: " insn "\n\t" \ | |
18b13e54 | 787 | ".pushsection .fixup, \"ax\" \n" \ |
4ecac3fd | 788 | "667: \n\t" \ |
8ceed347 | 789 | __ASM_SIZE(push) " $666b \n\t" \ |
4ecac3fd AK |
790 | "jmp kvm_handle_fault_on_reboot \n\t" \ |
791 | ".popsection \n\t" \ | |
792 | ".pushsection __ex_table, \"a\" \n\t" \ | |
8ceed347 | 793 | _ASM_PTR " 666b, 667b \n\t" \ |
4ecac3fd AK |
794 | ".popsection" |
795 | ||
e930bffe AA |
796 | #define KVM_ARCH_WANT_MMU_NOTIFIER |
797 | int kvm_unmap_hva(struct kvm *kvm, unsigned long hva); | |
798 | int kvm_age_hva(struct kvm *kvm, unsigned long hva); | |
82725b20 | 799 | int cpuid_maxphyaddr(struct kvm_vcpu *vcpu); |
e930bffe | 800 | |
1965aae3 | 801 | #endif /* _ASM_X86_KVM_HOST_H */ |