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edf88417 AK |
1 | #ifndef __KVM_HOST_H |
2 | #define __KVM_HOST_H | |
6aa8b732 AK |
3 | |
4 | /* | |
5 | * This work is licensed under the terms of the GNU GPL, version 2. See | |
6 | * the COPYING file in the top-level directory. | |
7 | */ | |
8 | ||
9 | #include <linux/types.h> | |
e56a7a28 | 10 | #include <linux/hardirq.h> |
6aa8b732 AK |
11 | #include <linux/list.h> |
12 | #include <linux/mutex.h> | |
13 | #include <linux/spinlock.h> | |
06ff0d37 MR |
14 | #include <linux/signal.h> |
15 | #include <linux/sched.h> | |
187f1882 | 16 | #include <linux/bug.h> |
6aa8b732 | 17 | #include <linux/mm.h> |
b297e672 | 18 | #include <linux/mmu_notifier.h> |
15ad7146 | 19 | #include <linux/preempt.h> |
0937c48d | 20 | #include <linux/msi.h> |
d89f5eff | 21 | #include <linux/slab.h> |
d1e5b0e9 | 22 | #include <linux/vmalloc.h> |
bd2b53b2 | 23 | #include <linux/rcupdate.h> |
bd80158a | 24 | #include <linux/ratelimit.h> |
83f09228 | 25 | #include <linux/err.h> |
c11f11fc | 26 | #include <linux/irqflags.h> |
521921ba | 27 | #include <linux/context_tracking.h> |
1a02b270 | 28 | #include <linux/irqbypass.h> |
8577370f | 29 | #include <linux/swait.h> |
e3736c3e | 30 | #include <linux/refcount.h> |
e8edc6e0 | 31 | #include <asm/signal.h> |
6aa8b732 | 32 | |
6aa8b732 | 33 | #include <linux/kvm.h> |
102d8325 | 34 | #include <linux/kvm_para.h> |
6aa8b732 | 35 | |
edf88417 | 36 | #include <linux/kvm_types.h> |
d77a39d9 | 37 | |
edf88417 | 38 | #include <asm/kvm_host.h> |
d657a98e | 39 | |
0b1b1dfd GK |
40 | #ifndef KVM_MAX_VCPU_ID |
41 | #define KVM_MAX_VCPU_ID KVM_MAX_VCPUS | |
42 | #endif | |
43 | ||
67b29204 XG |
44 | /* |
45 | * The bit 16 ~ bit 31 of kvm_memory_region::flags are internally used | |
46 | * in kvm, other bits are visible for userspace which are defined in | |
47 | * include/linux/kvm_h. | |
48 | */ | |
49 | #define KVM_MEMSLOT_INVALID (1UL << 16) | |
50 | ||
361209e0 SC |
51 | /* |
52 | * Bit 0 of the memslot generation number is an "update in-progress flag", | |
53 | * e.g. is temporarily set for the duration of install_new_memslots(). | |
54 | * This flag effectively creates a unique generation number that is used to | |
55 | * mark cached memslot data, e.g. MMIO accesses, as potentially being stale, | |
56 | * i.e. may (or may not) have come from the previous memslots generation. | |
57 | * | |
58 | * This is necessary because the actual memslots update is not atomic with | |
59 | * respect to the generation number update. Updating the generation number | |
60 | * first would allow a vCPU to cache a spte from the old memslots using the | |
61 | * new generation number, and updating the generation number after switching | |
62 | * to the new memslots would allow cache hits using the old generation number | |
63 | * to reference the defunct memslots. | |
64 | * | |
65 | * This mechanism is used to prevent getting hits in KVM's caches while a | |
66 | * memslot update is in-progress, and to prevent cache hits *after* updating | |
67 | * the actual generation number against accesses that were inserted into the | |
68 | * cache *before* the memslots were updated. | |
69 | */ | |
70 | #define KVM_MEMSLOT_GEN_UPDATE_IN_PROGRESS BIT_ULL(0) | |
71 | ||
87da7e66 XG |
72 | /* Two fragments for cross MMIO pages. */ |
73 | #define KVM_MAX_MMIO_FRAGMENTS 2 | |
f78146b0 | 74 | |
f481b069 PB |
75 | #ifndef KVM_ADDRESS_SPACE_NUM |
76 | #define KVM_ADDRESS_SPACE_NUM 1 | |
77 | #endif | |
78 | ||
9c5b1172 XG |
79 | /* |
80 | * For the normal pfn, the highest 12 bits should be zero, | |
81c52c56 XG |
81 | * so we can mask bit 62 ~ bit 52 to indicate the error pfn, |
82 | * mask bit 63 to indicate the noslot pfn. | |
9c5b1172 | 83 | */ |
81c52c56 XG |
84 | #define KVM_PFN_ERR_MASK (0x7ffULL << 52) |
85 | #define KVM_PFN_ERR_NOSLOT_MASK (0xfffULL << 52) | |
86 | #define KVM_PFN_NOSLOT (0x1ULL << 63) | |
9c5b1172 XG |
87 | |
88 | #define KVM_PFN_ERR_FAULT (KVM_PFN_ERR_MASK) | |
89 | #define KVM_PFN_ERR_HWPOISON (KVM_PFN_ERR_MASK + 1) | |
81c52c56 | 90 | #define KVM_PFN_ERR_RO_FAULT (KVM_PFN_ERR_MASK + 2) |
6c8ee57b | 91 | |
81c52c56 XG |
92 | /* |
93 | * error pfns indicate that the gfn is in slot but faild to | |
94 | * translate it to pfn on host. | |
95 | */ | |
ba049e93 | 96 | static inline bool is_error_pfn(kvm_pfn_t pfn) |
83f09228 | 97 | { |
9c5b1172 | 98 | return !!(pfn & KVM_PFN_ERR_MASK); |
83f09228 XG |
99 | } |
100 | ||
81c52c56 XG |
101 | /* |
102 | * error_noslot pfns indicate that the gfn can not be | |
103 | * translated to pfn - it is not in slot or failed to | |
104 | * translate it to pfn. | |
105 | */ | |
ba049e93 | 106 | static inline bool is_error_noslot_pfn(kvm_pfn_t pfn) |
83f09228 | 107 | { |
81c52c56 | 108 | return !!(pfn & KVM_PFN_ERR_NOSLOT_MASK); |
83f09228 XG |
109 | } |
110 | ||
81c52c56 | 111 | /* noslot pfn indicates that the gfn is not in slot. */ |
ba049e93 | 112 | static inline bool is_noslot_pfn(kvm_pfn_t pfn) |
83f09228 | 113 | { |
81c52c56 | 114 | return pfn == KVM_PFN_NOSLOT; |
83f09228 XG |
115 | } |
116 | ||
bf640876 DD |
117 | /* |
118 | * architectures with KVM_HVA_ERR_BAD other than PAGE_OFFSET (e.g. s390) | |
119 | * provide own defines and kvm_is_error_hva | |
120 | */ | |
121 | #ifndef KVM_HVA_ERR_BAD | |
122 | ||
7068d097 XG |
123 | #define KVM_HVA_ERR_BAD (PAGE_OFFSET) |
124 | #define KVM_HVA_ERR_RO_BAD (PAGE_OFFSET + PAGE_SIZE) | |
ca3a490c XG |
125 | |
126 | static inline bool kvm_is_error_hva(unsigned long addr) | |
127 | { | |
7068d097 | 128 | return addr >= PAGE_OFFSET; |
ca3a490c XG |
129 | } |
130 | ||
bf640876 DD |
131 | #endif |
132 | ||
6cede2e6 XG |
133 | #define KVM_ERR_PTR_BAD_PAGE (ERR_PTR(-ENOENT)) |
134 | ||
9c5b1172 | 135 | static inline bool is_error_page(struct page *page) |
6cede2e6 XG |
136 | { |
137 | return IS_ERR(page); | |
138 | } | |
139 | ||
930f7fd6 RK |
140 | #define KVM_REQUEST_MASK GENMASK(7,0) |
141 | #define KVM_REQUEST_NO_WAKEUP BIT(8) | |
7a97cec2 | 142 | #define KVM_REQUEST_WAIT BIT(9) |
d9e368d6 | 143 | /* |
2860c4b1 PB |
144 | * Architecture-independent vcpu->requests bit members |
145 | * Bits 4-7 are reserved for more arch-independent bits. | |
d9e368d6 | 146 | */ |
7a97cec2 PB |
147 | #define KVM_REQ_TLB_FLUSH (0 | KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP) |
148 | #define KVM_REQ_MMU_RELOAD (1 | KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP) | |
149 | #define KVM_REQ_PENDING_TIMER 2 | |
150 | #define KVM_REQ_UNHALT 3 | |
2387149e AJ |
151 | #define KVM_REQUEST_ARCH_BASE 8 |
152 | ||
153 | #define KVM_ARCH_REQ_FLAGS(nr, flags) ({ \ | |
86dafed5 | 154 | BUILD_BUG_ON((unsigned)(nr) >= (FIELD_SIZEOF(struct kvm_vcpu, requests) * 8) - KVM_REQUEST_ARCH_BASE); \ |
2387149e AJ |
155 | (unsigned)(((nr) + KVM_REQUEST_ARCH_BASE) | (flags)); \ |
156 | }) | |
157 | #define KVM_ARCH_REQ(nr) KVM_ARCH_REQ_FLAGS(nr, 0) | |
0cd31043 | 158 | |
7a84428a AW |
159 | #define KVM_USERSPACE_IRQ_SOURCE_ID 0 |
160 | #define KVM_IRQFD_RESAMPLE_IRQ_SOURCE_ID 1 | |
5550af4d | 161 | |
c16f862d | 162 | extern struct kmem_cache *kvm_vcpu_cache; |
6aa8b732 | 163 | |
2f303b74 | 164 | extern spinlock_t kvm_lock; |
fc1b7492 GL |
165 | extern struct list_head vm_list; |
166 | ||
743eeb0b SL |
167 | struct kvm_io_range { |
168 | gpa_t addr; | |
169 | int len; | |
170 | struct kvm_io_device *dev; | |
171 | }; | |
172 | ||
786a9f88 | 173 | #define NR_IOBUS_DEVS 1000 |
a1300716 | 174 | |
2eeb2e94 | 175 | struct kvm_io_bus { |
6ea34c9b AK |
176 | int dev_count; |
177 | int ioeventfd_count; | |
a1300716 | 178 | struct kvm_io_range range[]; |
2eeb2e94 GH |
179 | }; |
180 | ||
e93f8a0f MT |
181 | enum kvm_bus { |
182 | KVM_MMIO_BUS, | |
183 | KVM_PIO_BUS, | |
060f0ce6 | 184 | KVM_VIRTIO_CCW_NOTIFY_BUS, |
68c3b4d1 | 185 | KVM_FAST_MMIO_BUS, |
e93f8a0f MT |
186 | KVM_NR_BUSES |
187 | }; | |
188 | ||
e32edf4f | 189 | int kvm_io_bus_write(struct kvm_vcpu *vcpu, enum kvm_bus bus_idx, gpa_t addr, |
e93f8a0f | 190 | int len, const void *val); |
e32edf4f NN |
191 | int kvm_io_bus_write_cookie(struct kvm_vcpu *vcpu, enum kvm_bus bus_idx, |
192 | gpa_t addr, int len, const void *val, long cookie); | |
193 | int kvm_io_bus_read(struct kvm_vcpu *vcpu, enum kvm_bus bus_idx, gpa_t addr, | |
194 | int len, void *val); | |
743eeb0b SL |
195 | int kvm_io_bus_register_dev(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr, |
196 | int len, struct kvm_io_device *dev); | |
90db1043 DH |
197 | void kvm_io_bus_unregister_dev(struct kvm *kvm, enum kvm_bus bus_idx, |
198 | struct kvm_io_device *dev); | |
8a39d006 AP |
199 | struct kvm_io_device *kvm_io_bus_get_dev(struct kvm *kvm, enum kvm_bus bus_idx, |
200 | gpa_t addr); | |
2eeb2e94 | 201 | |
af585b92 GN |
202 | #ifdef CONFIG_KVM_ASYNC_PF |
203 | struct kvm_async_pf { | |
204 | struct work_struct work; | |
205 | struct list_head link; | |
206 | struct list_head queue; | |
207 | struct kvm_vcpu *vcpu; | |
208 | struct mm_struct *mm; | |
209 | gva_t gva; | |
210 | unsigned long addr; | |
211 | struct kvm_arch_async_pf arch; | |
f2e10669 | 212 | bool wakeup_all; |
af585b92 GN |
213 | }; |
214 | ||
215 | void kvm_clear_async_pf_completion_queue(struct kvm_vcpu *vcpu); | |
216 | void kvm_check_async_pf_completion(struct kvm_vcpu *vcpu); | |
e0ead41a | 217 | int kvm_setup_async_pf(struct kvm_vcpu *vcpu, gva_t gva, unsigned long hva, |
af585b92 | 218 | struct kvm_arch_async_pf *arch); |
344d9588 | 219 | int kvm_async_pf_wakeup_all(struct kvm_vcpu *vcpu); |
af585b92 GN |
220 | #endif |
221 | ||
6b7e2d09 XG |
222 | enum { |
223 | OUTSIDE_GUEST_MODE, | |
224 | IN_GUEST_MODE, | |
c142786c AK |
225 | EXITING_GUEST_MODE, |
226 | READING_SHADOW_PAGE_TABLES, | |
6b7e2d09 XG |
227 | }; |
228 | ||
f78146b0 AK |
229 | /* |
230 | * Sometimes a large or cross-page mmio needs to be broken up into separate | |
231 | * exits for userspace servicing. | |
232 | */ | |
233 | struct kvm_mmio_fragment { | |
234 | gpa_t gpa; | |
235 | void *data; | |
236 | unsigned len; | |
237 | }; | |
238 | ||
d17fbbf7 ZX |
239 | struct kvm_vcpu { |
240 | struct kvm *kvm; | |
31bb117e | 241 | #ifdef CONFIG_PREEMPT_NOTIFIERS |
d17fbbf7 | 242 | struct preempt_notifier preempt_notifier; |
31bb117e | 243 | #endif |
6b7e2d09 | 244 | int cpu; |
d17fbbf7 | 245 | int vcpu_id; |
6b7e2d09 XG |
246 | int srcu_idx; |
247 | int mode; | |
86dafed5 | 248 | u64 requests; |
d0bfb940 | 249 | unsigned long guest_debug; |
6b7e2d09 | 250 | |
bf9f6ac8 FW |
251 | int pre_pcpu; |
252 | struct list_head blocked_vcpu_list; | |
253 | ||
6b7e2d09 XG |
254 | struct mutex mutex; |
255 | struct kvm_run *run; | |
f656ce01 | 256 | |
f775b13e | 257 | int guest_xcr0_loaded; |
8577370f | 258 | struct swait_queue_head wq; |
0e4524a5 | 259 | struct pid __rcu *pid; |
d17fbbf7 ZX |
260 | int sigset_active; |
261 | sigset_t sigset; | |
262 | struct kvm_vcpu_stat stat; | |
19020f8a | 263 | unsigned int halt_poll_ns; |
3491caf2 | 264 | bool valid_wakeup; |
d17fbbf7 | 265 | |
34c16eec | 266 | #ifdef CONFIG_HAS_IOMEM |
d17fbbf7 ZX |
267 | int mmio_needed; |
268 | int mmio_read_completed; | |
269 | int mmio_is_write; | |
f78146b0 AK |
270 | int mmio_cur_fragment; |
271 | int mmio_nr_fragments; | |
272 | struct kvm_mmio_fragment mmio_fragments[KVM_MAX_MMIO_FRAGMENTS]; | |
34c16eec | 273 | #endif |
1165f5fe | 274 | |
af585b92 GN |
275 | #ifdef CONFIG_KVM_ASYNC_PF |
276 | struct { | |
277 | u32 queued; | |
278 | struct list_head queue; | |
279 | struct list_head done; | |
280 | spinlock_t lock; | |
281 | } async_pf; | |
282 | #endif | |
283 | ||
4c088493 R |
284 | #ifdef CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT |
285 | /* | |
286 | * Cpu relax intercept or pause loop exit optimization | |
287 | * in_spin_loop: set when a vcpu does a pause loop exit | |
288 | * or cpu relax intercepted. | |
289 | * dy_eligible: indicates whether vcpu is eligible for directed yield. | |
290 | */ | |
291 | struct { | |
292 | bool in_spin_loop; | |
293 | bool dy_eligible; | |
294 | } spin_loop; | |
295 | #endif | |
3a08a8f9 | 296 | bool preempted; |
d657a98e | 297 | struct kvm_vcpu_arch arch; |
45b5939e | 298 | struct dentry *debugfs_dentry; |
d657a98e ZX |
299 | }; |
300 | ||
6b7e2d09 XG |
301 | static inline int kvm_vcpu_exiting_guest_mode(struct kvm_vcpu *vcpu) |
302 | { | |
cde9af6e AJ |
303 | /* |
304 | * The memory barrier ensures a previous write to vcpu->requests cannot | |
305 | * be reordered with the read of vcpu->mode. It pairs with the general | |
306 | * memory barrier following the write of vcpu->mode in VCPU RUN. | |
307 | */ | |
308 | smp_mb__before_atomic(); | |
6b7e2d09 XG |
309 | return cmpxchg(&vcpu->mode, IN_GUEST_MODE, EXITING_GUEST_MODE); |
310 | } | |
311 | ||
660c22c4 TY |
312 | /* |
313 | * Some of the bitops functions do not support too long bitmaps. | |
314 | * This number must be determined not to exceed such limits. | |
315 | */ | |
316 | #define KVM_MEM_MAX_NR_PAGES ((1UL << 31) - 1) | |
317 | ||
6aa8b732 AK |
318 | struct kvm_memory_slot { |
319 | gfn_t base_gfn; | |
320 | unsigned long npages; | |
6aa8b732 | 321 | unsigned long *dirty_bitmap; |
db3fe4eb | 322 | struct kvm_arch_memory_slot arch; |
8a7ae055 | 323 | unsigned long userspace_addr; |
6104f472 | 324 | u32 flags; |
1e702d9a | 325 | short id; |
6aa8b732 AK |
326 | }; |
327 | ||
87bf6e7d TY |
328 | static inline unsigned long kvm_dirty_bitmap_bytes(struct kvm_memory_slot *memslot) |
329 | { | |
330 | return ALIGN(memslot->npages, BITS_PER_LONG) / 8; | |
331 | } | |
332 | ||
03133347 CI |
333 | static inline unsigned long *kvm_second_dirty_bitmap(struct kvm_memory_slot *memslot) |
334 | { | |
335 | unsigned long len = kvm_dirty_bitmap_bytes(memslot); | |
336 | ||
337 | return memslot->dirty_bitmap + len / sizeof(*memslot->dirty_bitmap); | |
338 | } | |
339 | ||
84223598 CH |
340 | struct kvm_s390_adapter_int { |
341 | u64 ind_addr; | |
342 | u64 summary_addr; | |
343 | u64 ind_offset; | |
344 | u32 summary_offset; | |
345 | u32 adapter_id; | |
346 | }; | |
347 | ||
5c919412 AS |
348 | struct kvm_hv_sint { |
349 | u32 vcpu; | |
350 | u32 sint; | |
351 | }; | |
352 | ||
399ec807 AK |
353 | struct kvm_kernel_irq_routing_entry { |
354 | u32 gsi; | |
5116d8f6 | 355 | u32 type; |
4925663a | 356 | int (*set)(struct kvm_kernel_irq_routing_entry *e, |
aa2fbe6d YZ |
357 | struct kvm *kvm, int irq_source_id, int level, |
358 | bool line_status); | |
399ec807 AK |
359 | union { |
360 | struct { | |
361 | unsigned irqchip; | |
362 | unsigned pin; | |
363 | } irqchip; | |
0455e72c EA |
364 | struct { |
365 | u32 address_lo; | |
366 | u32 address_hi; | |
367 | u32 data; | |
368 | u32 flags; | |
369 | u32 devid; | |
370 | } msi; | |
84223598 | 371 | struct kvm_s390_adapter_int adapter; |
5c919412 | 372 | struct kvm_hv_sint hv_sint; |
399ec807 | 373 | }; |
46e624b9 GN |
374 | struct hlist_node link; |
375 | }; | |
376 | ||
b053b2ae SR |
377 | #ifdef CONFIG_HAVE_KVM_IRQ_ROUTING |
378 | struct kvm_irq_routing_table { | |
379 | int chip[KVM_NR_IRQCHIPS][KVM_IRQCHIP_NUM_PINS]; | |
380 | u32 nr_rt_entries; | |
381 | /* | |
382 | * Array indexed by gsi. Each entry contains list of irq chips | |
383 | * the gsi is connected to. | |
384 | */ | |
385 | struct hlist_head map[0]; | |
386 | }; | |
387 | #endif | |
388 | ||
0743247f AW |
389 | #ifndef KVM_PRIVATE_MEM_SLOTS |
390 | #define KVM_PRIVATE_MEM_SLOTS 0 | |
391 | #endif | |
392 | ||
93a5cef0 | 393 | #ifndef KVM_MEM_SLOTS_NUM |
bbacc0c1 | 394 | #define KVM_MEM_SLOTS_NUM (KVM_USER_MEM_SLOTS + KVM_PRIVATE_MEM_SLOTS) |
93a5cef0 XG |
395 | #endif |
396 | ||
f481b069 PB |
397 | #ifndef __KVM_VCPU_MULTIPLE_ADDRESS_SPACE |
398 | static inline int kvm_arch_vcpu_memslots_id(struct kvm_vcpu *vcpu) | |
399 | { | |
400 | return 0; | |
401 | } | |
402 | #endif | |
403 | ||
bf3e05bc XG |
404 | /* |
405 | * Note: | |
406 | * memslots are not sorted by id anymore, please use id_to_memslot() | |
407 | * to get the memslot by its id. | |
408 | */ | |
46a26bf5 | 409 | struct kvm_memslots { |
49c7754c | 410 | u64 generation; |
93a5cef0 | 411 | struct kvm_memory_slot memslots[KVM_MEM_SLOTS_NUM]; |
f85e2cb5 | 412 | /* The mapping table from slot id to the index in memslots[]. */ |
1e702d9a | 413 | short id_to_index[KVM_MEM_SLOTS_NUM]; |
d4ae84a0 | 414 | atomic_t lru_slot; |
9c1a5d38 | 415 | int used_slots; |
46a26bf5 MT |
416 | }; |
417 | ||
6aa8b732 | 418 | struct kvm { |
aaee2c94 | 419 | spinlock_t mmu_lock; |
79fac95e | 420 | struct mutex slots_lock; |
6d4e4c4f | 421 | struct mm_struct *mm; /* userspace tied to this vm */ |
a80cf7b5 | 422 | struct kvm_memslots __rcu *memslots[KVM_ADDRESS_SPACE_NUM]; |
fb3f0f51 | 423 | struct kvm_vcpu *vcpus[KVM_MAX_VCPUS]; |
6c7caebc PB |
424 | |
425 | /* | |
426 | * created_vcpus is protected by kvm->lock, and is incremented | |
427 | * at the beginning of KVM_CREATE_VCPU. online_vcpus is only | |
428 | * incremented after storing the kvm_vcpu pointer in vcpus, | |
429 | * and is accessed atomically. | |
430 | */ | |
73880c80 | 431 | atomic_t online_vcpus; |
6c7caebc | 432 | int created_vcpus; |
217ece61 | 433 | int last_boosted_vcpu; |
133de902 | 434 | struct list_head vm_list; |
60eead79 | 435 | struct mutex lock; |
4a12f951 | 436 | struct kvm_io_bus __rcu *buses[KVM_NR_BUSES]; |
721eecbf GH |
437 | #ifdef CONFIG_HAVE_KVM_EVENTFD |
438 | struct { | |
439 | spinlock_t lock; | |
440 | struct list_head items; | |
7a84428a AW |
441 | struct list_head resampler_list; |
442 | struct mutex resampler_lock; | |
721eecbf | 443 | } irqfds; |
d34e6b17 | 444 | struct list_head ioeventfds; |
721eecbf | 445 | #endif |
ba1389b7 | 446 | struct kvm_vm_stat stat; |
d69fb81f | 447 | struct kvm_arch arch; |
e3736c3e | 448 | refcount_t users_count; |
4b4357e0 | 449 | #ifdef CONFIG_KVM_MMIO |
5f94c174 | 450 | struct kvm_coalesced_mmio_ring *coalesced_mmio_ring; |
2b3c246a SL |
451 | spinlock_t ring_lock; |
452 | struct list_head coalesced_zones; | |
5f94c174 | 453 | #endif |
e930bffe | 454 | |
60eead79 | 455 | struct mutex irq_lock; |
75858a84 | 456 | #ifdef CONFIG_HAVE_KVM_IRQCHIP |
bd2b53b2 | 457 | /* |
9957c86d | 458 | * Update side is protected by irq_lock. |
bd2b53b2 | 459 | */ |
4b6a2872 | 460 | struct kvm_irq_routing_table __rcu *irq_routing; |
c77dcacb PB |
461 | #endif |
462 | #ifdef CONFIG_HAVE_KVM_IRQFD | |
136bdfee | 463 | struct hlist_head irq_ack_notifier_list; |
75858a84 AK |
464 | #endif |
465 | ||
36c1ed82 | 466 | #if defined(CONFIG_MMU_NOTIFIER) && defined(KVM_ARCH_WANT_MMU_NOTIFIER) |
e930bffe AA |
467 | struct mmu_notifier mmu_notifier; |
468 | unsigned long mmu_notifier_seq; | |
469 | long mmu_notifier_count; | |
470 | #endif | |
a086f6a1 | 471 | long tlbs_dirty; |
07f0a7bd | 472 | struct list_head devices; |
2a31b9db | 473 | bool manual_dirty_log_protect; |
536a6f88 JF |
474 | struct dentry *debugfs_dentry; |
475 | struct kvm_stat_data **debugfs_stat_data; | |
6ade8694 PM |
476 | struct srcu_struct srcu; |
477 | struct srcu_struct irq_srcu; | |
fdeaf7e3 | 478 | pid_t userspace_pid; |
6aa8b732 AK |
479 | }; |
480 | ||
a737f256 CD |
481 | #define kvm_err(fmt, ...) \ |
482 | pr_err("kvm [%i]: " fmt, task_pid_nr(current), ## __VA_ARGS__) | |
483 | #define kvm_info(fmt, ...) \ | |
484 | pr_info("kvm [%i]: " fmt, task_pid_nr(current), ## __VA_ARGS__) | |
485 | #define kvm_debug(fmt, ...) \ | |
486 | pr_debug("kvm [%i]: " fmt, task_pid_nr(current), ## __VA_ARGS__) | |
ae0f5499 BD |
487 | #define kvm_debug_ratelimited(fmt, ...) \ |
488 | pr_debug_ratelimited("kvm [%i]: " fmt, task_pid_nr(current), \ | |
489 | ## __VA_ARGS__) | |
a737f256 CD |
490 | #define kvm_pr_unimpl(fmt, ...) \ |
491 | pr_err_ratelimited("kvm [%i]: " fmt, \ | |
492 | task_tgid_nr(current), ## __VA_ARGS__) | |
f0242478 | 493 | |
a737f256 CD |
494 | /* The guest did something we don't support. */ |
495 | #define vcpu_unimpl(vcpu, fmt, ...) \ | |
671d9ab3 BP |
496 | kvm_pr_unimpl("vcpu%i, guest rIP: 0x%lx " fmt, \ |
497 | (vcpu)->vcpu_id, kvm_rip_read(vcpu), ## __VA_ARGS__) | |
6aa8b732 | 498 | |
ee86dbc6 AS |
499 | #define vcpu_debug(vcpu, fmt, ...) \ |
500 | kvm_debug("vcpu%i " fmt, (vcpu)->vcpu_id, ## __VA_ARGS__) | |
ae0f5499 BD |
501 | #define vcpu_debug_ratelimited(vcpu, fmt, ...) \ |
502 | kvm_debug_ratelimited("vcpu%i " fmt, (vcpu)->vcpu_id, \ | |
503 | ## __VA_ARGS__) | |
765eaa0f AS |
504 | #define vcpu_err(vcpu, fmt, ...) \ |
505 | kvm_err("vcpu%i " fmt, (vcpu)->vcpu_id, ## __VA_ARGS__) | |
ee86dbc6 | 506 | |
4a12f951 CB |
507 | static inline struct kvm_io_bus *kvm_get_bus(struct kvm *kvm, enum kvm_bus idx) |
508 | { | |
509 | return srcu_dereference_check(kvm->buses[idx], &kvm->srcu, | |
3898da94 PB |
510 | lockdep_is_held(&kvm->slots_lock) || |
511 | !refcount_read(&kvm->users_count)); | |
4a12f951 CB |
512 | } |
513 | ||
988a2cae GN |
514 | static inline struct kvm_vcpu *kvm_get_vcpu(struct kvm *kvm, int i) |
515 | { | |
dd489240 PB |
516 | /* Pairs with smp_wmb() in kvm_vm_ioctl_create_vcpu, in case |
517 | * the caller has read kvm->online_vcpus before (as is the case | |
518 | * for kvm_for_each_vcpu, for example). | |
519 | */ | |
988a2cae GN |
520 | smp_rmb(); |
521 | return kvm->vcpus[i]; | |
522 | } | |
523 | ||
524 | #define kvm_for_each_vcpu(idx, vcpup, kvm) \ | |
b42fc3cb JM |
525 | for (idx = 0; \ |
526 | idx < atomic_read(&kvm->online_vcpus) && \ | |
527 | (vcpup = kvm_get_vcpu(kvm, idx)) != NULL; \ | |
528 | idx++) | |
988a2cae | 529 | |
db27a7a3 DH |
530 | static inline struct kvm_vcpu *kvm_get_vcpu_by_id(struct kvm *kvm, int id) |
531 | { | |
9b9e3fc4 | 532 | struct kvm_vcpu *vcpu = NULL; |
db27a7a3 DH |
533 | int i; |
534 | ||
9b9e3fc4 | 535 | if (id < 0) |
c896939f | 536 | return NULL; |
9b9e3fc4 GK |
537 | if (id < KVM_MAX_VCPUS) |
538 | vcpu = kvm_get_vcpu(kvm, id); | |
c896939f DH |
539 | if (vcpu && vcpu->vcpu_id == id) |
540 | return vcpu; | |
db27a7a3 DH |
541 | kvm_for_each_vcpu(i, vcpu, kvm) |
542 | if (vcpu->vcpu_id == id) | |
543 | return vcpu; | |
544 | return NULL; | |
545 | } | |
546 | ||
497d72d8 CD |
547 | static inline int kvm_vcpu_get_idx(struct kvm_vcpu *vcpu) |
548 | { | |
549 | struct kvm_vcpu *tmp; | |
550 | int idx; | |
551 | ||
552 | kvm_for_each_vcpu(idx, tmp, vcpu->kvm) | |
553 | if (tmp == vcpu) | |
554 | return idx; | |
555 | BUG(); | |
556 | } | |
557 | ||
be6ba0f0 XG |
558 | #define kvm_for_each_memslot(memslot, slots) \ |
559 | for (memslot = &slots->memslots[0]; \ | |
bf3e05bc XG |
560 | memslot < slots->memslots + KVM_MEM_SLOTS_NUM && memslot->npages;\ |
561 | memslot++) | |
be6ba0f0 | 562 | |
fb3f0f51 RR |
563 | int kvm_vcpu_init(struct kvm_vcpu *vcpu, struct kvm *kvm, unsigned id); |
564 | void kvm_vcpu_uninit(struct kvm_vcpu *vcpu); | |
565 | ||
ec7660cc | 566 | void vcpu_load(struct kvm_vcpu *vcpu); |
313a3dc7 CO |
567 | void vcpu_put(struct kvm_vcpu *vcpu); |
568 | ||
6ef768fa | 569 | #ifdef __KVM_HAVE_IOAPIC |
993225ad | 570 | void kvm_arch_post_irq_ack_notifier_list_update(struct kvm *kvm); |
abdb080f | 571 | void kvm_arch_post_irq_routing_update(struct kvm *kvm); |
6ef768fa | 572 | #else |
993225ad | 573 | static inline void kvm_arch_post_irq_ack_notifier_list_update(struct kvm *kvm) |
6ef768fa PB |
574 | { |
575 | } | |
abdb080f | 576 | static inline void kvm_arch_post_irq_routing_update(struct kvm *kvm) |
b053b2ae SR |
577 | { |
578 | } | |
6ef768fa PB |
579 | #endif |
580 | ||
297e2105 | 581 | #ifdef CONFIG_HAVE_KVM_IRQFD |
a0f155e9 CH |
582 | int kvm_irqfd_init(void); |
583 | void kvm_irqfd_exit(void); | |
584 | #else | |
585 | static inline int kvm_irqfd_init(void) | |
586 | { | |
587 | return 0; | |
588 | } | |
589 | ||
590 | static inline void kvm_irqfd_exit(void) | |
591 | { | |
592 | } | |
593 | #endif | |
0ee75bea | 594 | int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align, |
c16f862d | 595 | struct module *module); |
cb498ea2 | 596 | void kvm_exit(void); |
6aa8b732 | 597 | |
d39f13b0 IE |
598 | void kvm_get_kvm(struct kvm *kvm); |
599 | void kvm_put_kvm(struct kvm *kvm); | |
600 | ||
f481b069 | 601 | static inline struct kvm_memslots *__kvm_memslots(struct kvm *kvm, int as_id) |
90d83dc3 | 602 | { |
7e988b10 | 603 | return srcu_dereference_check(kvm->memslots[as_id], &kvm->srcu, |
3898da94 PB |
604 | lockdep_is_held(&kvm->slots_lock) || |
605 | !refcount_read(&kvm->users_count)); | |
90d83dc3 LJ |
606 | } |
607 | ||
f481b069 PB |
608 | static inline struct kvm_memslots *kvm_memslots(struct kvm *kvm) |
609 | { | |
610 | return __kvm_memslots(kvm, 0); | |
611 | } | |
612 | ||
8e73485c PB |
613 | static inline struct kvm_memslots *kvm_vcpu_memslots(struct kvm_vcpu *vcpu) |
614 | { | |
f481b069 PB |
615 | int as_id = kvm_arch_vcpu_memslots_id(vcpu); |
616 | ||
617 | return __kvm_memslots(vcpu->kvm, as_id); | |
8e73485c PB |
618 | } |
619 | ||
28a37544 XG |
620 | static inline struct kvm_memory_slot * |
621 | id_to_memslot(struct kvm_memslots *slots, int id) | |
622 | { | |
f85e2cb5 XG |
623 | int index = slots->id_to_index[id]; |
624 | struct kvm_memory_slot *slot; | |
bf3e05bc | 625 | |
f85e2cb5 | 626 | slot = &slots->memslots[index]; |
bf3e05bc | 627 | |
f85e2cb5 XG |
628 | WARN_ON(slot->id != id); |
629 | return slot; | |
28a37544 XG |
630 | } |
631 | ||
74d0727c TY |
632 | /* |
633 | * KVM_SET_USER_MEMORY_REGION ioctl allows the following operations: | |
634 | * - create a new memory slot | |
635 | * - delete an existing memory slot | |
636 | * - modify an existing memory slot | |
637 | * -- move it in the guest physical memory space | |
638 | * -- just change its flags | |
639 | * | |
640 | * Since flags can be changed by some of these operations, the following | |
641 | * differentiation is the best we can do for __kvm_set_memory_region(): | |
642 | */ | |
643 | enum kvm_mr_change { | |
644 | KVM_MR_CREATE, | |
645 | KVM_MR_DELETE, | |
646 | KVM_MR_MOVE, | |
647 | KVM_MR_FLAGS_ONLY, | |
648 | }; | |
649 | ||
210c7c4d | 650 | int kvm_set_memory_region(struct kvm *kvm, |
09170a49 | 651 | const struct kvm_userspace_memory_region *mem); |
f78e0e2e | 652 | int __kvm_set_memory_region(struct kvm *kvm, |
09170a49 | 653 | const struct kvm_userspace_memory_region *mem); |
5587027c | 654 | void kvm_arch_free_memslot(struct kvm *kvm, struct kvm_memory_slot *free, |
db3fe4eb | 655 | struct kvm_memory_slot *dont); |
5587027c AK |
656 | int kvm_arch_create_memslot(struct kvm *kvm, struct kvm_memory_slot *slot, |
657 | unsigned long npages); | |
15248258 | 658 | void kvm_arch_memslots_updated(struct kvm *kvm, u64 gen); |
f7784b8e MT |
659 | int kvm_arch_prepare_memory_region(struct kvm *kvm, |
660 | struct kvm_memory_slot *memslot, | |
09170a49 | 661 | const struct kvm_userspace_memory_region *mem, |
7b6195a9 | 662 | enum kvm_mr_change change); |
f7784b8e | 663 | void kvm_arch_commit_memory_region(struct kvm *kvm, |
09170a49 | 664 | const struct kvm_userspace_memory_region *mem, |
8482644a | 665 | const struct kvm_memory_slot *old, |
f36f3f28 | 666 | const struct kvm_memory_slot *new, |
8482644a | 667 | enum kvm_mr_change change); |
db3fe4eb | 668 | bool kvm_largepages_enabled(void); |
54dee993 | 669 | void kvm_disable_largepages(void); |
2df72e9b MT |
670 | /* flush all memory translations */ |
671 | void kvm_arch_flush_shadow_all(struct kvm *kvm); | |
672 | /* flush memory translations pointing to 'slot' */ | |
673 | void kvm_arch_flush_shadow_memslot(struct kvm *kvm, | |
674 | struct kvm_memory_slot *slot); | |
a983fb23 | 675 | |
d9ef13c2 PB |
676 | int gfn_to_page_many_atomic(struct kvm_memory_slot *slot, gfn_t gfn, |
677 | struct page **pages, int nr_pages); | |
48987781 | 678 | |
954bbbc2 | 679 | struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn); |
05da4558 | 680 | unsigned long gfn_to_hva(struct kvm *kvm, gfn_t gfn); |
ba6a3541 | 681 | unsigned long gfn_to_hva_prot(struct kvm *kvm, gfn_t gfn, bool *writable); |
4d8b81ab | 682 | unsigned long gfn_to_hva_memslot(struct kvm_memory_slot *slot, gfn_t gfn); |
64d83126 CD |
683 | unsigned long gfn_to_hva_memslot_prot(struct kvm_memory_slot *slot, gfn_t gfn, |
684 | bool *writable); | |
b4231d61 IE |
685 | void kvm_release_page_clean(struct page *page); |
686 | void kvm_release_page_dirty(struct page *page); | |
35149e21 AL |
687 | void kvm_set_page_accessed(struct page *page); |
688 | ||
ba049e93 DW |
689 | kvm_pfn_t gfn_to_pfn_atomic(struct kvm *kvm, gfn_t gfn); |
690 | kvm_pfn_t gfn_to_pfn(struct kvm *kvm, gfn_t gfn); | |
691 | kvm_pfn_t gfn_to_pfn_prot(struct kvm *kvm, gfn_t gfn, bool write_fault, | |
612819c3 | 692 | bool *writable); |
ba049e93 DW |
693 | kvm_pfn_t gfn_to_pfn_memslot(struct kvm_memory_slot *slot, gfn_t gfn); |
694 | kvm_pfn_t gfn_to_pfn_memslot_atomic(struct kvm_memory_slot *slot, gfn_t gfn); | |
695 | kvm_pfn_t __gfn_to_pfn_memslot(struct kvm_memory_slot *slot, gfn_t gfn, | |
696 | bool atomic, bool *async, bool write_fault, | |
697 | bool *writable); | |
037d92dc | 698 | |
ba049e93 | 699 | void kvm_release_pfn_clean(kvm_pfn_t pfn); |
f7a6509f | 700 | void kvm_release_pfn_dirty(kvm_pfn_t pfn); |
ba049e93 DW |
701 | void kvm_set_pfn_dirty(kvm_pfn_t pfn); |
702 | void kvm_set_pfn_accessed(kvm_pfn_t pfn); | |
703 | void kvm_get_pfn(kvm_pfn_t pfn); | |
35149e21 | 704 | |
195aefde IE |
705 | int kvm_read_guest_page(struct kvm *kvm, gfn_t gfn, void *data, int offset, |
706 | int len); | |
7ec54588 MT |
707 | int kvm_read_guest_atomic(struct kvm *kvm, gpa_t gpa, void *data, |
708 | unsigned long len); | |
195aefde | 709 | int kvm_read_guest(struct kvm *kvm, gpa_t gpa, void *data, unsigned long len); |
4e335d9e PB |
710 | int kvm_read_guest_cached(struct kvm *kvm, struct gfn_to_hva_cache *ghc, |
711 | void *data, unsigned long len); | |
195aefde IE |
712 | int kvm_write_guest_page(struct kvm *kvm, gfn_t gfn, const void *data, |
713 | int offset, int len); | |
714 | int kvm_write_guest(struct kvm *kvm, gpa_t gpa, const void *data, | |
715 | unsigned long len); | |
4e335d9e PB |
716 | int kvm_write_guest_cached(struct kvm *kvm, struct gfn_to_hva_cache *ghc, |
717 | void *data, unsigned long len); | |
718 | int kvm_write_guest_offset_cached(struct kvm *kvm, struct gfn_to_hva_cache *ghc, | |
7a86dab8 JM |
719 | void *data, unsigned int offset, |
720 | unsigned long len); | |
4e335d9e PB |
721 | int kvm_gfn_to_hva_cache_init(struct kvm *kvm, struct gfn_to_hva_cache *ghc, |
722 | gpa_t gpa, unsigned long len); | |
195aefde IE |
723 | int kvm_clear_guest_page(struct kvm *kvm, gfn_t gfn, int offset, int len); |
724 | int kvm_clear_guest(struct kvm *kvm, gpa_t gpa, unsigned long len); | |
6aa8b732 | 725 | struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn); |
33e94154 | 726 | bool kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn); |
8f0b1ab6 | 727 | unsigned long kvm_host_page_size(struct kvm *kvm, gfn_t gfn); |
6aa8b732 AK |
728 | void mark_page_dirty(struct kvm *kvm, gfn_t gfn); |
729 | ||
8e73485c PB |
730 | struct kvm_memslots *kvm_vcpu_memslots(struct kvm_vcpu *vcpu); |
731 | struct kvm_memory_slot *kvm_vcpu_gfn_to_memslot(struct kvm_vcpu *vcpu, gfn_t gfn); | |
ba049e93 DW |
732 | kvm_pfn_t kvm_vcpu_gfn_to_pfn_atomic(struct kvm_vcpu *vcpu, gfn_t gfn); |
733 | kvm_pfn_t kvm_vcpu_gfn_to_pfn(struct kvm_vcpu *vcpu, gfn_t gfn); | |
8e73485c PB |
734 | struct page *kvm_vcpu_gfn_to_page(struct kvm_vcpu *vcpu, gfn_t gfn); |
735 | unsigned long kvm_vcpu_gfn_to_hva(struct kvm_vcpu *vcpu, gfn_t gfn); | |
736 | unsigned long kvm_vcpu_gfn_to_hva_prot(struct kvm_vcpu *vcpu, gfn_t gfn, bool *writable); | |
737 | int kvm_vcpu_read_guest_page(struct kvm_vcpu *vcpu, gfn_t gfn, void *data, int offset, | |
738 | int len); | |
739 | int kvm_vcpu_read_guest_atomic(struct kvm_vcpu *vcpu, gpa_t gpa, void *data, | |
740 | unsigned long len); | |
741 | int kvm_vcpu_read_guest(struct kvm_vcpu *vcpu, gpa_t gpa, void *data, | |
742 | unsigned long len); | |
743 | int kvm_vcpu_write_guest_page(struct kvm_vcpu *vcpu, gfn_t gfn, const void *data, | |
744 | int offset, int len); | |
745 | int kvm_vcpu_write_guest(struct kvm_vcpu *vcpu, gpa_t gpa, const void *data, | |
746 | unsigned long len); | |
747 | void kvm_vcpu_mark_page_dirty(struct kvm_vcpu *vcpu, gfn_t gfn); | |
748 | ||
20b7035c JS |
749 | void kvm_sigset_activate(struct kvm_vcpu *vcpu); |
750 | void kvm_sigset_deactivate(struct kvm_vcpu *vcpu); | |
751 | ||
8776e519 | 752 | void kvm_vcpu_block(struct kvm_vcpu *vcpu); |
3217f7c2 CD |
753 | void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu); |
754 | void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu); | |
178f02ff | 755 | bool kvm_vcpu_wake_up(struct kvm_vcpu *vcpu); |
b6d33834 | 756 | void kvm_vcpu_kick(struct kvm_vcpu *vcpu); |
fa93384f | 757 | int kvm_vcpu_yield_to(struct kvm_vcpu *target); |
199b5763 | 758 | void kvm_vcpu_on_spin(struct kvm_vcpu *vcpu, bool usermode_vcpu_not_eligible); |
a4ee1ca4 | 759 | |
d9e368d6 | 760 | void kvm_flush_remote_tlbs(struct kvm *kvm); |
2e53d63a | 761 | void kvm_reload_remote_mmus(struct kvm *kvm); |
7053df4e VK |
762 | |
763 | bool kvm_make_vcpus_request_mask(struct kvm *kvm, unsigned int req, | |
764 | unsigned long *vcpu_bitmap, cpumask_var_t tmp); | |
445b8236 | 765 | bool kvm_make_all_cpus_request(struct kvm *kvm, unsigned int req); |
6aa8b732 | 766 | |
043405e1 CO |
767 | long kvm_arch_dev_ioctl(struct file *filp, |
768 | unsigned int ioctl, unsigned long arg); | |
313a3dc7 CO |
769 | long kvm_arch_vcpu_ioctl(struct file *filp, |
770 | unsigned int ioctl, unsigned long arg); | |
1499fa80 | 771 | vm_fault_t kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf); |
018d00d2 | 772 | |
784aa3d7 | 773 | int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext); |
018d00d2 | 774 | |
5bb064dc ZX |
775 | int kvm_get_dirty_log(struct kvm *kvm, |
776 | struct kvm_dirty_log *log, int *is_dirty); | |
ba0513b5 MS |
777 | |
778 | int kvm_get_dirty_log_protect(struct kvm *kvm, | |
8fe65a82 | 779 | struct kvm_dirty_log *log, bool *flush); |
2a31b9db PB |
780 | int kvm_clear_dirty_log_protect(struct kvm *kvm, |
781 | struct kvm_clear_dirty_log *log, bool *flush); | |
ba0513b5 | 782 | |
3b0f1d01 | 783 | void kvm_arch_mmu_enable_log_dirty_pt_masked(struct kvm *kvm, |
ba0513b5 MS |
784 | struct kvm_memory_slot *slot, |
785 | gfn_t gfn_offset, | |
786 | unsigned long mask); | |
787 | ||
5bb064dc ZX |
788 | int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, |
789 | struct kvm_dirty_log *log); | |
2a31b9db PB |
790 | int kvm_vm_ioctl_clear_dirty_log(struct kvm *kvm, |
791 | struct kvm_clear_dirty_log *log); | |
5bb064dc | 792 | |
aa2fbe6d YZ |
793 | int kvm_vm_ioctl_irq_line(struct kvm *kvm, struct kvm_irq_level *irq_level, |
794 | bool line_status); | |
e5d83c74 PB |
795 | int kvm_vm_ioctl_enable_cap(struct kvm *kvm, |
796 | struct kvm_enable_cap *cap); | |
1fe779f8 CO |
797 | long kvm_arch_vm_ioctl(struct file *filp, |
798 | unsigned int ioctl, unsigned long arg); | |
313a3dc7 | 799 | |
d0752060 HB |
800 | int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu); |
801 | int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu); | |
802 | ||
8b006791 ZX |
803 | int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu, |
804 | struct kvm_translation *tr); | |
805 | ||
b6c7a5dc HB |
806 | int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs); |
807 | int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs); | |
808 | int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu, | |
809 | struct kvm_sregs *sregs); | |
810 | int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu, | |
811 | struct kvm_sregs *sregs); | |
62d9f0db MT |
812 | int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu, |
813 | struct kvm_mp_state *mp_state); | |
814 | int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, | |
815 | struct kvm_mp_state *mp_state); | |
d0bfb940 JK |
816 | int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu, |
817 | struct kvm_guest_debug *dbg); | |
b6c7a5dc HB |
818 | int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run); |
819 | ||
f8c16bba ZX |
820 | int kvm_arch_init(void *opaque); |
821 | void kvm_arch_exit(void); | |
043405e1 | 822 | |
e9b11c17 ZX |
823 | int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu); |
824 | void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu); | |
825 | ||
e790d9ef RK |
826 | void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu); |
827 | ||
e9b11c17 ZX |
828 | void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu); |
829 | void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu); | |
830 | void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu); | |
831 | struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id); | |
26e5215f | 832 | int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu); |
31928aa5 | 833 | void kvm_arch_vcpu_postcreate(struct kvm_vcpu *vcpu); |
d40ccc62 | 834 | void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu); |
e9b11c17 | 835 | |
235539b4 LC |
836 | bool kvm_arch_has_vcpu_debugfs(void); |
837 | int kvm_arch_create_vcpu_debugfs(struct kvm_vcpu *vcpu); | |
838 | ||
13a34e06 RK |
839 | int kvm_arch_hardware_enable(void); |
840 | void kvm_arch_hardware_disable(void); | |
e9b11c17 ZX |
841 | int kvm_arch_hardware_setup(void); |
842 | void kvm_arch_hardware_unsetup(void); | |
843 | void kvm_arch_check_processor_compat(void *rtn); | |
1d737c8a | 844 | int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu); |
199b5763 | 845 | bool kvm_arch_vcpu_in_kernel(struct kvm_vcpu *vcpu); |
b6d33834 | 846 | int kvm_arch_vcpu_should_kick(struct kvm_vcpu *vcpu); |
e9b11c17 | 847 | |
d89f5eff | 848 | #ifndef __KVM_HAVE_ARCH_VM_ALLOC |
d1e5b0e9 MO |
849 | /* |
850 | * All architectures that want to use vzalloc currently also | |
851 | * need their own kvm_arch_alloc_vm implementation. | |
852 | */ | |
d89f5eff JK |
853 | static inline struct kvm *kvm_arch_alloc_vm(void) |
854 | { | |
855 | return kzalloc(sizeof(struct kvm), GFP_KERNEL); | |
856 | } | |
857 | ||
858 | static inline void kvm_arch_free_vm(struct kvm *kvm) | |
859 | { | |
860 | kfree(kvm); | |
861 | } | |
862 | #endif | |
863 | ||
b08660e5 TL |
864 | #ifndef __KVM_HAVE_ARCH_FLUSH_REMOTE_TLB |
865 | static inline int kvm_arch_flush_remote_tlb(struct kvm *kvm) | |
866 | { | |
867 | return -ENOTSUPP; | |
868 | } | |
869 | #endif | |
870 | ||
e0f0bbc5 AW |
871 | #ifdef __KVM_HAVE_ARCH_NONCOHERENT_DMA |
872 | void kvm_arch_register_noncoherent_dma(struct kvm *kvm); | |
873 | void kvm_arch_unregister_noncoherent_dma(struct kvm *kvm); | |
874 | bool kvm_arch_has_noncoherent_dma(struct kvm *kvm); | |
875 | #else | |
876 | static inline void kvm_arch_register_noncoherent_dma(struct kvm *kvm) | |
877 | { | |
878 | } | |
879 | ||
880 | static inline void kvm_arch_unregister_noncoherent_dma(struct kvm *kvm) | |
881 | { | |
882 | } | |
883 | ||
884 | static inline bool kvm_arch_has_noncoherent_dma(struct kvm *kvm) | |
885 | { | |
886 | return false; | |
887 | } | |
888 | #endif | |
5544eb9b PB |
889 | #ifdef __KVM_HAVE_ARCH_ASSIGNED_DEVICE |
890 | void kvm_arch_start_assignment(struct kvm *kvm); | |
891 | void kvm_arch_end_assignment(struct kvm *kvm); | |
892 | bool kvm_arch_has_assigned_device(struct kvm *kvm); | |
893 | #else | |
894 | static inline void kvm_arch_start_assignment(struct kvm *kvm) | |
895 | { | |
896 | } | |
897 | ||
898 | static inline void kvm_arch_end_assignment(struct kvm *kvm) | |
899 | { | |
900 | } | |
901 | ||
902 | static inline bool kvm_arch_has_assigned_device(struct kvm *kvm) | |
903 | { | |
904 | return false; | |
905 | } | |
906 | #endif | |
e0f0bbc5 | 907 | |
8577370f | 908 | static inline struct swait_queue_head *kvm_arch_vcpu_wq(struct kvm_vcpu *vcpu) |
b6d33834 | 909 | { |
2246f8b5 AG |
910 | #ifdef __KVM_HAVE_ARCH_WQP |
911 | return vcpu->arch.wqp; | |
912 | #else | |
b6d33834 | 913 | return &vcpu->wq; |
b6d33834 | 914 | #endif |
2246f8b5 | 915 | } |
b6d33834 | 916 | |
01c94e64 EA |
917 | #ifdef __KVM_HAVE_ARCH_INTC_INITIALIZED |
918 | /* | |
919 | * returns true if the virtual interrupt controller is initialized and | |
920 | * ready to accept virtual IRQ. On some architectures the virtual interrupt | |
921 | * controller is dynamically instantiated and this is not always true. | |
922 | */ | |
923 | bool kvm_arch_intc_initialized(struct kvm *kvm); | |
924 | #else | |
925 | static inline bool kvm_arch_intc_initialized(struct kvm *kvm) | |
926 | { | |
927 | return true; | |
928 | } | |
929 | #endif | |
930 | ||
e08b9637 | 931 | int kvm_arch_init_vm(struct kvm *kvm, unsigned long type); |
d19a9cd2 | 932 | void kvm_arch_destroy_vm(struct kvm *kvm); |
ad8ba2cd | 933 | void kvm_arch_sync_events(struct kvm *kvm); |
e9b11c17 | 934 | |
3d80840d | 935 | int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu); |
5736199a | 936 | void kvm_vcpu_kick(struct kvm_vcpu *vcpu); |
682c59a3 | 937 | |
ba049e93 | 938 | bool kvm_is_reserved_pfn(kvm_pfn_t pfn); |
c77fb9dc | 939 | |
62c476c7 BAY |
940 | struct kvm_irq_ack_notifier { |
941 | struct hlist_node link; | |
942 | unsigned gsi; | |
943 | void (*irq_acked)(struct kvm_irq_ack_notifier *kian); | |
944 | }; | |
945 | ||
9957c86d PM |
946 | int kvm_irq_map_gsi(struct kvm *kvm, |
947 | struct kvm_kernel_irq_routing_entry *entries, int gsi); | |
948 | int kvm_irq_map_chip_pin(struct kvm *kvm, unsigned irqchip, unsigned pin); | |
8ba918d4 | 949 | |
aa2fbe6d YZ |
950 | int kvm_set_irq(struct kvm *kvm, int irq_source_id, u32 irq, int level, |
951 | bool line_status); | |
bd2b53b2 | 952 | int kvm_set_msi(struct kvm_kernel_irq_routing_entry *irq_entry, struct kvm *kvm, |
aa2fbe6d | 953 | int irq_source_id, int level, bool line_status); |
b97e6de9 PB |
954 | int kvm_arch_set_irq_inatomic(struct kvm_kernel_irq_routing_entry *e, |
955 | struct kvm *kvm, int irq_source_id, | |
956 | int level, bool line_status); | |
c7c9c56c | 957 | bool kvm_irq_has_notifier(struct kvm *kvm, unsigned irqchip, unsigned pin); |
ba1aefcd | 958 | void kvm_notify_acked_gsi(struct kvm *kvm, int gsi); |
44882eed | 959 | void kvm_notify_acked_irq(struct kvm *kvm, unsigned irqchip, unsigned pin); |
3de42dc0 XZ |
960 | void kvm_register_irq_ack_notifier(struct kvm *kvm, |
961 | struct kvm_irq_ack_notifier *kian); | |
fa40a821 MT |
962 | void kvm_unregister_irq_ack_notifier(struct kvm *kvm, |
963 | struct kvm_irq_ack_notifier *kian); | |
5550af4d SY |
964 | int kvm_request_irq_source_id(struct kvm *kvm); |
965 | void kvm_free_irq_source_id(struct kvm *kvm, int irq_source_id); | |
62c476c7 | 966 | |
9d4cba7f PM |
967 | /* |
968 | * search_memslots() and __gfn_to_memslot() are here because they are | |
969 | * used in non-modular code in arch/powerpc/kvm/book3s_hv_rm_mmu.c. | |
970 | * gfn_to_memslot() itself isn't here as an inline because that would | |
971 | * bloat other code too much. | |
972 | */ | |
973 | static inline struct kvm_memory_slot * | |
974 | search_memslots(struct kvm_memslots *slots, gfn_t gfn) | |
975 | { | |
9c1a5d38 | 976 | int start = 0, end = slots->used_slots; |
d4ae84a0 | 977 | int slot = atomic_read(&slots->lru_slot); |
9c1a5d38 IM |
978 | struct kvm_memory_slot *memslots = slots->memslots; |
979 | ||
980 | if (gfn >= memslots[slot].base_gfn && | |
981 | gfn < memslots[slot].base_gfn + memslots[slot].npages) | |
982 | return &memslots[slot]; | |
983 | ||
984 | while (start < end) { | |
985 | slot = start + (end - start) / 2; | |
986 | ||
987 | if (gfn >= memslots[slot].base_gfn) | |
988 | end = slot; | |
989 | else | |
990 | start = slot + 1; | |
991 | } | |
992 | ||
993 | if (gfn >= memslots[start].base_gfn && | |
994 | gfn < memslots[start].base_gfn + memslots[start].npages) { | |
995 | atomic_set(&slots->lru_slot, start); | |
996 | return &memslots[start]; | |
997 | } | |
9d4cba7f PM |
998 | |
999 | return NULL; | |
1000 | } | |
1001 | ||
1002 | static inline struct kvm_memory_slot * | |
1003 | __gfn_to_memslot(struct kvm_memslots *slots, gfn_t gfn) | |
1004 | { | |
1005 | return search_memslots(slots, gfn); | |
1006 | } | |
1007 | ||
66a03505 GS |
1008 | static inline unsigned long |
1009 | __gfn_to_hva_memslot(struct kvm_memory_slot *slot, gfn_t gfn) | |
1010 | { | |
1011 | return slot->userspace_addr + (gfn - slot->base_gfn) * PAGE_SIZE; | |
1012 | } | |
1013 | ||
0ee8dcb8 XG |
1014 | static inline int memslot_id(struct kvm *kvm, gfn_t gfn) |
1015 | { | |
1016 | return gfn_to_memslot(kvm, gfn)->id; | |
1017 | } | |
1018 | ||
d19a748b TY |
1019 | static inline gfn_t |
1020 | hva_to_gfn_memslot(unsigned long hva, struct kvm_memory_slot *slot) | |
887c08ac | 1021 | { |
d19a748b TY |
1022 | gfn_t gfn_offset = (hva - slot->userspace_addr) >> PAGE_SHIFT; |
1023 | ||
1024 | return slot->base_gfn + gfn_offset; | |
887c08ac XG |
1025 | } |
1026 | ||
1755fbcc AK |
1027 | static inline gpa_t gfn_to_gpa(gfn_t gfn) |
1028 | { | |
1029 | return (gpa_t)gfn << PAGE_SHIFT; | |
1030 | } | |
6aa8b732 | 1031 | |
c30a358d JR |
1032 | static inline gfn_t gpa_to_gfn(gpa_t gpa) |
1033 | { | |
1034 | return (gfn_t)(gpa >> PAGE_SHIFT); | |
1035 | } | |
1036 | ||
ba049e93 | 1037 | static inline hpa_t pfn_to_hpa(kvm_pfn_t pfn) |
62c476c7 BAY |
1038 | { |
1039 | return (hpa_t)pfn << PAGE_SHIFT; | |
1040 | } | |
1041 | ||
5e2f30b7 DH |
1042 | static inline struct page *kvm_vcpu_gpa_to_page(struct kvm_vcpu *vcpu, |
1043 | gpa_t gpa) | |
1044 | { | |
1045 | return kvm_vcpu_gfn_to_page(vcpu, gpa_to_gfn(gpa)); | |
1046 | } | |
1047 | ||
dfeec843 HC |
1048 | static inline bool kvm_is_error_gpa(struct kvm *kvm, gpa_t gpa) |
1049 | { | |
1050 | unsigned long hva = gfn_to_hva(kvm, gpa_to_gfn(gpa)); | |
1051 | ||
1052 | return kvm_is_error_hva(hva); | |
1053 | } | |
1054 | ||
ba1389b7 AK |
1055 | enum kvm_stat_kind { |
1056 | KVM_STAT_VM, | |
1057 | KVM_STAT_VCPU, | |
1058 | }; | |
1059 | ||
536a6f88 JF |
1060 | struct kvm_stat_data { |
1061 | int offset; | |
1062 | struct kvm *kvm; | |
1063 | }; | |
1064 | ||
417bc304 HB |
1065 | struct kvm_stats_debugfs_item { |
1066 | const char *name; | |
1067 | int offset; | |
ba1389b7 | 1068 | enum kvm_stat_kind kind; |
417bc304 HB |
1069 | }; |
1070 | extern struct kvm_stats_debugfs_item debugfs_entries[]; | |
76f7c879 | 1071 | extern struct dentry *kvm_debugfs_dir; |
d4c9ff2d | 1072 | |
36c1ed82 | 1073 | #if defined(CONFIG_MMU_NOTIFIER) && defined(KVM_ARCH_WANT_MMU_NOTIFIER) |
8ca40a70 | 1074 | static inline int mmu_notifier_retry(struct kvm *kvm, unsigned long mmu_seq) |
e930bffe | 1075 | { |
8ca40a70 | 1076 | if (unlikely(kvm->mmu_notifier_count)) |
e930bffe AA |
1077 | return 1; |
1078 | /* | |
a355aa54 PM |
1079 | * Ensure the read of mmu_notifier_count happens before the read |
1080 | * of mmu_notifier_seq. This interacts with the smp_wmb() in | |
1081 | * mmu_notifier_invalidate_range_end to make sure that the caller | |
1082 | * either sees the old (non-zero) value of mmu_notifier_count or | |
1083 | * the new (incremented) value of mmu_notifier_seq. | |
1084 | * PowerPC Book3s HV KVM calls this under a per-page lock | |
1085 | * rather than under kvm->mmu_lock, for scalability, so | |
1086 | * can't rely on kvm->mmu_lock to keep things ordered. | |
e930bffe | 1087 | */ |
a355aa54 | 1088 | smp_rmb(); |
8ca40a70 | 1089 | if (kvm->mmu_notifier_seq != mmu_seq) |
e930bffe AA |
1090 | return 1; |
1091 | return 0; | |
1092 | } | |
1093 | #endif | |
1094 | ||
a725d56a | 1095 | #ifdef CONFIG_HAVE_KVM_IRQ_ROUTING |
399ec807 | 1096 | |
ddc9cfb7 | 1097 | #define KVM_MAX_IRQ_ROUTES 4096 /* might need extension/rework in the future */ |
399ec807 | 1098 | |
5c0aea0e | 1099 | bool kvm_arch_can_set_irq_routing(struct kvm *kvm); |
399ec807 AK |
1100 | int kvm_set_irq_routing(struct kvm *kvm, |
1101 | const struct kvm_irq_routing_entry *entries, | |
1102 | unsigned nr, | |
1103 | unsigned flags); | |
c63cf538 RK |
1104 | int kvm_set_routing_entry(struct kvm *kvm, |
1105 | struct kvm_kernel_irq_routing_entry *e, | |
e8cde093 | 1106 | const struct kvm_irq_routing_entry *ue); |
399ec807 AK |
1107 | void kvm_free_irq_routing(struct kvm *kvm); |
1108 | ||
1109 | #else | |
1110 | ||
1111 | static inline void kvm_free_irq_routing(struct kvm *kvm) {} | |
1112 | ||
1113 | #endif | |
1114 | ||
297e2105 PM |
1115 | int kvm_send_userspace_msi(struct kvm *kvm, struct kvm_msi *msi); |
1116 | ||
721eecbf GH |
1117 | #ifdef CONFIG_HAVE_KVM_EVENTFD |
1118 | ||
d34e6b17 | 1119 | void kvm_eventfd_init(struct kvm *kvm); |
914daba8 AG |
1120 | int kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args); |
1121 | ||
297e2105 | 1122 | #ifdef CONFIG_HAVE_KVM_IRQFD |
d4db2935 | 1123 | int kvm_irqfd(struct kvm *kvm, struct kvm_irqfd *args); |
721eecbf | 1124 | void kvm_irqfd_release(struct kvm *kvm); |
9957c86d | 1125 | void kvm_irq_routing_update(struct kvm *); |
914daba8 AG |
1126 | #else |
1127 | static inline int kvm_irqfd(struct kvm *kvm, struct kvm_irqfd *args) | |
1128 | { | |
1129 | return -EINVAL; | |
1130 | } | |
1131 | ||
1132 | static inline void kvm_irqfd_release(struct kvm *kvm) {} | |
1133 | #endif | |
721eecbf GH |
1134 | |
1135 | #else | |
1136 | ||
d34e6b17 | 1137 | static inline void kvm_eventfd_init(struct kvm *kvm) {} |
bd2b53b2 | 1138 | |
d4db2935 | 1139 | static inline int kvm_irqfd(struct kvm *kvm, struct kvm_irqfd *args) |
721eecbf GH |
1140 | { |
1141 | return -EINVAL; | |
1142 | } | |
1143 | ||
1144 | static inline void kvm_irqfd_release(struct kvm *kvm) {} | |
bd2b53b2 | 1145 | |
27923eb1 | 1146 | #ifdef CONFIG_HAVE_KVM_IRQCHIP |
9957c86d | 1147 | static inline void kvm_irq_routing_update(struct kvm *kvm) |
bd2b53b2 | 1148 | { |
bd2b53b2 | 1149 | } |
27923eb1 | 1150 | #endif |
bd2b53b2 | 1151 | |
d34e6b17 GH |
1152 | static inline int kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args) |
1153 | { | |
1154 | return -ENOSYS; | |
1155 | } | |
721eecbf GH |
1156 | |
1157 | #endif /* CONFIG_HAVE_KVM_EVENTFD */ | |
1158 | ||
07646749 SO |
1159 | void kvm_arch_irq_routing_update(struct kvm *kvm); |
1160 | ||
a8eeb04a AK |
1161 | static inline void kvm_make_request(int req, struct kvm_vcpu *vcpu) |
1162 | { | |
2e4682ba PB |
1163 | /* |
1164 | * Ensure the rest of the request is published to kvm_check_request's | |
1165 | * caller. Paired with the smp_mb__after_atomic in kvm_check_request. | |
1166 | */ | |
1167 | smp_wmb(); | |
86dafed5 | 1168 | set_bit(req & KVM_REQUEST_MASK, (void *)&vcpu->requests); |
a8eeb04a AK |
1169 | } |
1170 | ||
2fa6e1e1 RK |
1171 | static inline bool kvm_request_pending(struct kvm_vcpu *vcpu) |
1172 | { | |
1173 | return READ_ONCE(vcpu->requests); | |
1174 | } | |
1175 | ||
72875d8a RK |
1176 | static inline bool kvm_test_request(int req, struct kvm_vcpu *vcpu) |
1177 | { | |
86dafed5 | 1178 | return test_bit(req & KVM_REQUEST_MASK, (void *)&vcpu->requests); |
72875d8a RK |
1179 | } |
1180 | ||
1181 | static inline void kvm_clear_request(int req, struct kvm_vcpu *vcpu) | |
1182 | { | |
86dafed5 | 1183 | clear_bit(req & KVM_REQUEST_MASK, (void *)&vcpu->requests); |
72875d8a RK |
1184 | } |
1185 | ||
a8eeb04a AK |
1186 | static inline bool kvm_check_request(int req, struct kvm_vcpu *vcpu) |
1187 | { | |
72875d8a RK |
1188 | if (kvm_test_request(req, vcpu)) { |
1189 | kvm_clear_request(req, vcpu); | |
2e4682ba PB |
1190 | |
1191 | /* | |
1192 | * Ensure the rest of the request is visible to kvm_check_request's | |
1193 | * caller. Paired with the smp_wmb in kvm_make_request. | |
1194 | */ | |
1195 | smp_mb__after_atomic(); | |
0719837c AK |
1196 | return true; |
1197 | } else { | |
1198 | return false; | |
1199 | } | |
a8eeb04a AK |
1200 | } |
1201 | ||
8b415dcd GL |
1202 | extern bool kvm_rebooting; |
1203 | ||
ec76d819 SJS |
1204 | extern unsigned int halt_poll_ns; |
1205 | extern unsigned int halt_poll_ns_grow; | |
1206 | extern unsigned int halt_poll_ns_shrink; | |
1207 | ||
852b6d57 SW |
1208 | struct kvm_device { |
1209 | struct kvm_device_ops *ops; | |
1210 | struct kvm *kvm; | |
852b6d57 | 1211 | void *private; |
07f0a7bd | 1212 | struct list_head vm_node; |
852b6d57 SW |
1213 | }; |
1214 | ||
1215 | /* create, destroy, and name are mandatory */ | |
1216 | struct kvm_device_ops { | |
1217 | const char *name; | |
a28ebea2 CD |
1218 | |
1219 | /* | |
1220 | * create is called holding kvm->lock and any operations not suitable | |
1221 | * to do while holding the lock should be deferred to init (see | |
1222 | * below). | |
1223 | */ | |
852b6d57 SW |
1224 | int (*create)(struct kvm_device *dev, u32 type); |
1225 | ||
023e9fdd CD |
1226 | /* |
1227 | * init is called after create if create is successful and is called | |
1228 | * outside of holding kvm->lock. | |
1229 | */ | |
1230 | void (*init)(struct kvm_device *dev); | |
1231 | ||
852b6d57 SW |
1232 | /* |
1233 | * Destroy is responsible for freeing dev. | |
1234 | * | |
1235 | * Destroy may be called before or after destructors are called | |
1236 | * on emulated I/O regions, depending on whether a reference is | |
1237 | * held by a vcpu or other kvm component that gets destroyed | |
1238 | * after the emulated I/O. | |
1239 | */ | |
1240 | void (*destroy)(struct kvm_device *dev); | |
1241 | ||
1242 | int (*set_attr)(struct kvm_device *dev, struct kvm_device_attr *attr); | |
1243 | int (*get_attr)(struct kvm_device *dev, struct kvm_device_attr *attr); | |
1244 | int (*has_attr)(struct kvm_device *dev, struct kvm_device_attr *attr); | |
1245 | long (*ioctl)(struct kvm_device *dev, unsigned int ioctl, | |
1246 | unsigned long arg); | |
1247 | }; | |
1248 | ||
1249 | void kvm_device_get(struct kvm_device *dev); | |
1250 | void kvm_device_put(struct kvm_device *dev); | |
1251 | struct kvm_device *kvm_device_from_filp(struct file *filp); | |
d60eacb0 | 1252 | int kvm_register_device_ops(struct kvm_device_ops *ops, u32 type); |
571ee1b6 | 1253 | void kvm_unregister_device_ops(u32 type); |
852b6d57 | 1254 | |
5df554ad | 1255 | extern struct kvm_device_ops kvm_mpic_ops; |
ea2f83a7 | 1256 | extern struct kvm_device_ops kvm_arm_vgic_v2_ops; |
a0675c25 | 1257 | extern struct kvm_device_ops kvm_arm_vgic_v3_ops; |
5df554ad | 1258 | |
4c088493 R |
1259 | #ifdef CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT |
1260 | ||
1261 | static inline void kvm_vcpu_set_in_spin_loop(struct kvm_vcpu *vcpu, bool val) | |
1262 | { | |
1263 | vcpu->spin_loop.in_spin_loop = val; | |
1264 | } | |
1265 | static inline void kvm_vcpu_set_dy_eligible(struct kvm_vcpu *vcpu, bool val) | |
1266 | { | |
1267 | vcpu->spin_loop.dy_eligible = val; | |
1268 | } | |
1269 | ||
1270 | #else /* !CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT */ | |
1271 | ||
1272 | static inline void kvm_vcpu_set_in_spin_loop(struct kvm_vcpu *vcpu, bool val) | |
1273 | { | |
1274 | } | |
1275 | ||
1276 | static inline void kvm_vcpu_set_dy_eligible(struct kvm_vcpu *vcpu, bool val) | |
1277 | { | |
1278 | } | |
4c088493 | 1279 | #endif /* CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT */ |
1a02b270 EA |
1280 | |
1281 | #ifdef CONFIG_HAVE_KVM_IRQ_BYPASS | |
14717e20 | 1282 | bool kvm_arch_has_irq_bypass(void); |
1a02b270 EA |
1283 | int kvm_arch_irq_bypass_add_producer(struct irq_bypass_consumer *, |
1284 | struct irq_bypass_producer *); | |
1285 | void kvm_arch_irq_bypass_del_producer(struct irq_bypass_consumer *, | |
1286 | struct irq_bypass_producer *); | |
1287 | void kvm_arch_irq_bypass_stop(struct irq_bypass_consumer *); | |
1288 | void kvm_arch_irq_bypass_start(struct irq_bypass_consumer *); | |
f70c20aa FW |
1289 | int kvm_arch_update_irqfd_routing(struct kvm *kvm, unsigned int host_irq, |
1290 | uint32_t guest_irq, bool set); | |
1a02b270 | 1291 | #endif /* CONFIG_HAVE_KVM_IRQ_BYPASS */ |
35181e86 | 1292 | |
3491caf2 CB |
1293 | #ifdef CONFIG_HAVE_KVM_INVALID_WAKEUPS |
1294 | /* If we wakeup during the poll time, was it a sucessful poll? */ | |
1295 | static inline bool vcpu_valid_wakeup(struct kvm_vcpu *vcpu) | |
1296 | { | |
1297 | return vcpu->valid_wakeup; | |
1298 | } | |
1299 | ||
1300 | #else | |
1301 | static inline bool vcpu_valid_wakeup(struct kvm_vcpu *vcpu) | |
1302 | { | |
1303 | return true; | |
1304 | } | |
1305 | #endif /* CONFIG_HAVE_KVM_INVALID_WAKEUPS */ | |
1306 | ||
5cb0944c PB |
1307 | #ifdef CONFIG_HAVE_KVM_VCPU_ASYNC_IOCTL |
1308 | long kvm_arch_vcpu_async_ioctl(struct file *filp, | |
1309 | unsigned int ioctl, unsigned long arg); | |
1310 | #else | |
1311 | static inline long kvm_arch_vcpu_async_ioctl(struct file *filp, | |
1312 | unsigned int ioctl, | |
1313 | unsigned long arg) | |
1314 | { | |
1315 | return -ENOIOCTLCMD; | |
1316 | } | |
1317 | #endif /* CONFIG_HAVE_KVM_VCPU_ASYNC_IOCTL */ | |
1318 | ||
93065ac7 MH |
1319 | int kvm_arch_mmu_notifier_invalidate_range(struct kvm *kvm, |
1320 | unsigned long start, unsigned long end, bool blockable); | |
f75e4924 | 1321 | |
bd2a6394 CD |
1322 | #ifdef CONFIG_HAVE_KVM_VCPU_RUN_PID_CHANGE |
1323 | int kvm_arch_vcpu_run_pid_change(struct kvm_vcpu *vcpu); | |
1324 | #else | |
1325 | static inline int kvm_arch_vcpu_run_pid_change(struct kvm_vcpu *vcpu) | |
1326 | { | |
1327 | return 0; | |
1328 | } | |
1329 | #endif /* CONFIG_HAVE_KVM_VCPU_RUN_PID_CHANGE */ | |
1330 | ||
bfd99ff5 | 1331 | #endif |