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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> |
bd2b53b2 | 22 | #include <linux/rcupdate.h> |
bd80158a | 23 | #include <linux/ratelimit.h> |
83f09228 | 24 | #include <linux/err.h> |
e8edc6e0 | 25 | #include <asm/signal.h> |
6aa8b732 | 26 | |
6aa8b732 | 27 | #include <linux/kvm.h> |
102d8325 | 28 | #include <linux/kvm_para.h> |
6aa8b732 | 29 | |
edf88417 | 30 | #include <linux/kvm_types.h> |
d77a39d9 | 31 | |
edf88417 | 32 | #include <asm/kvm_host.h> |
d657a98e | 33 | |
cef4dea0 AK |
34 | #ifndef KVM_MMIO_SIZE |
35 | #define KVM_MMIO_SIZE 8 | |
36 | #endif | |
37 | ||
f78146b0 AK |
38 | /* |
39 | * If we support unaligned MMIO, at most one fragment will be split into two: | |
40 | */ | |
41 | #ifdef KVM_UNALIGNED_MMIO | |
42 | # define KVM_EXTRA_MMIO_FRAGMENTS 1 | |
43 | #else | |
44 | # define KVM_EXTRA_MMIO_FRAGMENTS 0 | |
45 | #endif | |
46 | ||
47 | #define KVM_USER_MMIO_SIZE 8 | |
48 | ||
49 | #define KVM_MAX_MMIO_FRAGMENTS \ | |
50 | (KVM_MMIO_SIZE / KVM_USER_MMIO_SIZE + KVM_EXTRA_MMIO_FRAGMENTS) | |
51 | ||
9c5b1172 XG |
52 | /* |
53 | * For the normal pfn, the highest 12 bits should be zero, | |
54 | * so we can mask these bits to indicate the error. | |
55 | */ | |
56 | #define KVM_PFN_ERR_MASK (0xfffULL << 52) | |
57 | ||
58 | #define KVM_PFN_ERR_FAULT (KVM_PFN_ERR_MASK) | |
59 | #define KVM_PFN_ERR_HWPOISON (KVM_PFN_ERR_MASK + 1) | |
60 | #define KVM_PFN_ERR_BAD (KVM_PFN_ERR_MASK + 2) | |
6c8ee57b | 61 | |
9c5b1172 | 62 | static inline bool is_error_pfn(pfn_t pfn) |
83f09228 | 63 | { |
9c5b1172 | 64 | return !!(pfn & KVM_PFN_ERR_MASK); |
83f09228 XG |
65 | } |
66 | ||
9c5b1172 | 67 | static inline bool is_noslot_pfn(pfn_t pfn) |
83f09228 | 68 | { |
9c5b1172 | 69 | return pfn == KVM_PFN_ERR_BAD; |
83f09228 XG |
70 | } |
71 | ||
9c5b1172 | 72 | static inline bool is_invalid_pfn(pfn_t pfn) |
83f09228 XG |
73 | { |
74 | return !is_noslot_pfn(pfn) && is_error_pfn(pfn); | |
75 | } | |
76 | ||
6cede2e6 XG |
77 | #define KVM_ERR_PTR_BAD_PAGE (ERR_PTR(-ENOENT)) |
78 | ||
9c5b1172 | 79 | static inline bool is_error_page(struct page *page) |
6cede2e6 XG |
80 | { |
81 | return IS_ERR(page); | |
82 | } | |
83 | ||
d9e368d6 AK |
84 | /* |
85 | * vcpu->requests bit members | |
86 | */ | |
3176bc3e | 87 | #define KVM_REQ_TLB_FLUSH 0 |
2f52d58c | 88 | #define KVM_REQ_MIGRATE_TIMER 1 |
b209749f | 89 | #define KVM_REQ_REPORT_TPR_ACCESS 2 |
2e53d63a | 90 | #define KVM_REQ_MMU_RELOAD 3 |
71c4dfaf | 91 | #define KVM_REQ_TRIPLE_FAULT 4 |
06e05645 | 92 | #define KVM_REQ_PENDING_TIMER 5 |
d7690175 | 93 | #define KVM_REQ_UNHALT 6 |
4731d4c7 | 94 | #define KVM_REQ_MMU_SYNC 7 |
34c238a1 | 95 | #define KVM_REQ_CLOCK_UPDATE 8 |
32f88400 | 96 | #define KVM_REQ_KICK 9 |
02daab21 | 97 | #define KVM_REQ_DEACTIVATE_FPU 10 |
3842d135 | 98 | #define KVM_REQ_EVENT 11 |
af585b92 | 99 | #define KVM_REQ_APF_HALT 12 |
c9aaa895 | 100 | #define KVM_REQ_STEAL_UPDATE 13 |
7460fb4a | 101 | #define KVM_REQ_NMI 14 |
d6185f20 | 102 | #define KVM_REQ_IMMEDIATE_EXIT 15 |
f5132b01 GN |
103 | #define KVM_REQ_PMU 16 |
104 | #define KVM_REQ_PMI 17 | |
6aa8b732 | 105 | |
5550af4d SY |
106 | #define KVM_USERSPACE_IRQ_SOURCE_ID 0 |
107 | ||
6c474694 | 108 | struct kvm; |
6aa8b732 | 109 | struct kvm_vcpu; |
c16f862d | 110 | extern struct kmem_cache *kvm_vcpu_cache; |
6aa8b732 | 111 | |
743eeb0b SL |
112 | struct kvm_io_range { |
113 | gpa_t addr; | |
114 | int len; | |
115 | struct kvm_io_device *dev; | |
116 | }; | |
117 | ||
786a9f88 | 118 | #define NR_IOBUS_DEVS 1000 |
a1300716 | 119 | |
2eeb2e94 GH |
120 | struct kvm_io_bus { |
121 | int dev_count; | |
a1300716 | 122 | struct kvm_io_range range[]; |
2eeb2e94 GH |
123 | }; |
124 | ||
e93f8a0f MT |
125 | enum kvm_bus { |
126 | KVM_MMIO_BUS, | |
127 | KVM_PIO_BUS, | |
128 | KVM_NR_BUSES | |
129 | }; | |
130 | ||
131 | int kvm_io_bus_write(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr, | |
132 | int len, const void *val); | |
133 | int kvm_io_bus_read(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr, int len, | |
bda9020e | 134 | void *val); |
743eeb0b SL |
135 | int kvm_io_bus_register_dev(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr, |
136 | int len, struct kvm_io_device *dev); | |
e93f8a0f MT |
137 | int kvm_io_bus_unregister_dev(struct kvm *kvm, enum kvm_bus bus_idx, |
138 | struct kvm_io_device *dev); | |
2eeb2e94 | 139 | |
af585b92 GN |
140 | #ifdef CONFIG_KVM_ASYNC_PF |
141 | struct kvm_async_pf { | |
142 | struct work_struct work; | |
143 | struct list_head link; | |
144 | struct list_head queue; | |
145 | struct kvm_vcpu *vcpu; | |
146 | struct mm_struct *mm; | |
147 | gva_t gva; | |
148 | unsigned long addr; | |
149 | struct kvm_arch_async_pf arch; | |
150 | struct page *page; | |
151 | bool done; | |
152 | }; | |
153 | ||
154 | void kvm_clear_async_pf_completion_queue(struct kvm_vcpu *vcpu); | |
155 | void kvm_check_async_pf_completion(struct kvm_vcpu *vcpu); | |
156 | int kvm_setup_async_pf(struct kvm_vcpu *vcpu, gva_t gva, gfn_t gfn, | |
157 | struct kvm_arch_async_pf *arch); | |
344d9588 | 158 | int kvm_async_pf_wakeup_all(struct kvm_vcpu *vcpu); |
af585b92 GN |
159 | #endif |
160 | ||
6b7e2d09 XG |
161 | enum { |
162 | OUTSIDE_GUEST_MODE, | |
163 | IN_GUEST_MODE, | |
c142786c AK |
164 | EXITING_GUEST_MODE, |
165 | READING_SHADOW_PAGE_TABLES, | |
6b7e2d09 XG |
166 | }; |
167 | ||
f78146b0 AK |
168 | /* |
169 | * Sometimes a large or cross-page mmio needs to be broken up into separate | |
170 | * exits for userspace servicing. | |
171 | */ | |
172 | struct kvm_mmio_fragment { | |
173 | gpa_t gpa; | |
174 | void *data; | |
175 | unsigned len; | |
176 | }; | |
177 | ||
d17fbbf7 ZX |
178 | struct kvm_vcpu { |
179 | struct kvm *kvm; | |
31bb117e | 180 | #ifdef CONFIG_PREEMPT_NOTIFIERS |
d17fbbf7 | 181 | struct preempt_notifier preempt_notifier; |
31bb117e | 182 | #endif |
6b7e2d09 | 183 | int cpu; |
d17fbbf7 | 184 | int vcpu_id; |
6b7e2d09 XG |
185 | int srcu_idx; |
186 | int mode; | |
d17fbbf7 | 187 | unsigned long requests; |
d0bfb940 | 188 | unsigned long guest_debug; |
6b7e2d09 XG |
189 | |
190 | struct mutex mutex; | |
191 | struct kvm_run *run; | |
f656ce01 | 192 | |
d17fbbf7 | 193 | int fpu_active; |
2acf923e | 194 | int guest_fpu_loaded, guest_xcr0_loaded; |
d17fbbf7 | 195 | wait_queue_head_t wq; |
34bb10b7 | 196 | struct pid *pid; |
d17fbbf7 ZX |
197 | int sigset_active; |
198 | sigset_t sigset; | |
199 | struct kvm_vcpu_stat stat; | |
200 | ||
34c16eec | 201 | #ifdef CONFIG_HAS_IOMEM |
d17fbbf7 ZX |
202 | int mmio_needed; |
203 | int mmio_read_completed; | |
204 | int mmio_is_write; | |
f78146b0 AK |
205 | int mmio_cur_fragment; |
206 | int mmio_nr_fragments; | |
207 | struct kvm_mmio_fragment mmio_fragments[KVM_MAX_MMIO_FRAGMENTS]; | |
34c16eec | 208 | #endif |
1165f5fe | 209 | |
af585b92 GN |
210 | #ifdef CONFIG_KVM_ASYNC_PF |
211 | struct { | |
212 | u32 queued; | |
213 | struct list_head queue; | |
214 | struct list_head done; | |
215 | spinlock_t lock; | |
216 | } async_pf; | |
217 | #endif | |
218 | ||
4c088493 R |
219 | #ifdef CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT |
220 | /* | |
221 | * Cpu relax intercept or pause loop exit optimization | |
222 | * in_spin_loop: set when a vcpu does a pause loop exit | |
223 | * or cpu relax intercepted. | |
224 | * dy_eligible: indicates whether vcpu is eligible for directed yield. | |
225 | */ | |
226 | struct { | |
227 | bool in_spin_loop; | |
228 | bool dy_eligible; | |
229 | } spin_loop; | |
230 | #endif | |
d657a98e ZX |
231 | struct kvm_vcpu_arch arch; |
232 | }; | |
233 | ||
6b7e2d09 XG |
234 | static inline int kvm_vcpu_exiting_guest_mode(struct kvm_vcpu *vcpu) |
235 | { | |
236 | return cmpxchg(&vcpu->mode, IN_GUEST_MODE, EXITING_GUEST_MODE); | |
237 | } | |
238 | ||
660c22c4 TY |
239 | /* |
240 | * Some of the bitops functions do not support too long bitmaps. | |
241 | * This number must be determined not to exceed such limits. | |
242 | */ | |
243 | #define KVM_MEM_MAX_NR_PAGES ((1UL << 31) - 1) | |
244 | ||
6aa8b732 AK |
245 | struct kvm_memory_slot { |
246 | gfn_t base_gfn; | |
247 | unsigned long npages; | |
248 | unsigned long flags; | |
6aa8b732 | 249 | unsigned long *dirty_bitmap; |
db3fe4eb | 250 | struct kvm_arch_memory_slot arch; |
8a7ae055 | 251 | unsigned long userspace_addr; |
80b14b5b | 252 | int user_alloc; |
e36d96f7 | 253 | int id; |
6aa8b732 AK |
254 | }; |
255 | ||
87bf6e7d TY |
256 | static inline unsigned long kvm_dirty_bitmap_bytes(struct kvm_memory_slot *memslot) |
257 | { | |
258 | return ALIGN(memslot->npages, BITS_PER_LONG) / 8; | |
259 | } | |
260 | ||
399ec807 AK |
261 | struct kvm_kernel_irq_routing_entry { |
262 | u32 gsi; | |
5116d8f6 | 263 | u32 type; |
4925663a | 264 | int (*set)(struct kvm_kernel_irq_routing_entry *e, |
1a6e4a8c | 265 | struct kvm *kvm, int irq_source_id, int level); |
399ec807 AK |
266 | union { |
267 | struct { | |
268 | unsigned irqchip; | |
269 | unsigned pin; | |
270 | } irqchip; | |
79950e10 | 271 | struct msi_msg msi; |
399ec807 | 272 | }; |
46e624b9 GN |
273 | struct hlist_node link; |
274 | }; | |
275 | ||
3e71f88b GN |
276 | #ifdef __KVM_HAVE_IOAPIC |
277 | ||
46e624b9 | 278 | struct kvm_irq_routing_table { |
3e71f88b | 279 | int chip[KVM_NR_IRQCHIPS][KVM_IOAPIC_NUM_PINS]; |
46e624b9 GN |
280 | struct kvm_kernel_irq_routing_entry *rt_entries; |
281 | u32 nr_rt_entries; | |
282 | /* | |
283 | * Array indexed by gsi. Each entry contains list of irq chips | |
284 | * the gsi is connected to. | |
285 | */ | |
286 | struct hlist_head map[0]; | |
399ec807 AK |
287 | }; |
288 | ||
3e71f88b GN |
289 | #else |
290 | ||
291 | struct kvm_irq_routing_table {}; | |
292 | ||
293 | #endif | |
294 | ||
93a5cef0 XG |
295 | #ifndef KVM_MEM_SLOTS_NUM |
296 | #define KVM_MEM_SLOTS_NUM (KVM_MEMORY_SLOTS + KVM_PRIVATE_MEM_SLOTS) | |
297 | #endif | |
298 | ||
bf3e05bc XG |
299 | /* |
300 | * Note: | |
301 | * memslots are not sorted by id anymore, please use id_to_memslot() | |
302 | * to get the memslot by its id. | |
303 | */ | |
46a26bf5 | 304 | struct kvm_memslots { |
49c7754c | 305 | u64 generation; |
93a5cef0 | 306 | struct kvm_memory_slot memslots[KVM_MEM_SLOTS_NUM]; |
f85e2cb5 XG |
307 | /* The mapping table from slot id to the index in memslots[]. */ |
308 | int id_to_index[KVM_MEM_SLOTS_NUM]; | |
46a26bf5 MT |
309 | }; |
310 | ||
6aa8b732 | 311 | struct kvm { |
aaee2c94 | 312 | spinlock_t mmu_lock; |
79fac95e | 313 | struct mutex slots_lock; |
6d4e4c4f | 314 | struct mm_struct *mm; /* userspace tied to this vm */ |
46a26bf5 | 315 | struct kvm_memslots *memslots; |
bc6678a3 | 316 | struct srcu_struct srcu; |
73880c80 GN |
317 | #ifdef CONFIG_KVM_APIC_ARCHITECTURE |
318 | u32 bsp_vcpu_id; | |
73880c80 | 319 | #endif |
fb3f0f51 | 320 | struct kvm_vcpu *vcpus[KVM_MAX_VCPUS]; |
73880c80 | 321 | atomic_t online_vcpus; |
217ece61 | 322 | int last_boosted_vcpu; |
133de902 | 323 | struct list_head vm_list; |
60eead79 | 324 | struct mutex lock; |
e93f8a0f | 325 | struct kvm_io_bus *buses[KVM_NR_BUSES]; |
721eecbf GH |
326 | #ifdef CONFIG_HAVE_KVM_EVENTFD |
327 | struct { | |
328 | spinlock_t lock; | |
329 | struct list_head items; | |
330 | } irqfds; | |
d34e6b17 | 331 | struct list_head ioeventfds; |
721eecbf | 332 | #endif |
ba1389b7 | 333 | struct kvm_vm_stat stat; |
d69fb81f | 334 | struct kvm_arch arch; |
d39f13b0 | 335 | atomic_t users_count; |
5f94c174 | 336 | #ifdef KVM_COALESCED_MMIO_PAGE_OFFSET |
5f94c174 | 337 | struct kvm_coalesced_mmio_ring *coalesced_mmio_ring; |
2b3c246a SL |
338 | spinlock_t ring_lock; |
339 | struct list_head coalesced_zones; | |
5f94c174 | 340 | #endif |
e930bffe | 341 | |
60eead79 | 342 | struct mutex irq_lock; |
75858a84 | 343 | #ifdef CONFIG_HAVE_KVM_IRQCHIP |
bd2b53b2 MT |
344 | /* |
345 | * Update side is protected by irq_lock and, | |
346 | * if configured, irqfds.lock. | |
347 | */ | |
4b6a2872 | 348 | struct kvm_irq_routing_table __rcu *irq_routing; |
75858a84 | 349 | struct hlist_head mask_notifier_list; |
136bdfee | 350 | struct hlist_head irq_ack_notifier_list; |
75858a84 AK |
351 | #endif |
352 | ||
36c1ed82 | 353 | #if defined(CONFIG_MMU_NOTIFIER) && defined(KVM_ARCH_WANT_MMU_NOTIFIER) |
e930bffe AA |
354 | struct mmu_notifier mmu_notifier; |
355 | unsigned long mmu_notifier_seq; | |
356 | long mmu_notifier_count; | |
357 | #endif | |
5c663a15 | 358 | long tlbs_dirty; |
6aa8b732 AK |
359 | }; |
360 | ||
a737f256 CD |
361 | #define kvm_err(fmt, ...) \ |
362 | pr_err("kvm [%i]: " fmt, task_pid_nr(current), ## __VA_ARGS__) | |
363 | #define kvm_info(fmt, ...) \ | |
364 | pr_info("kvm [%i]: " fmt, task_pid_nr(current), ## __VA_ARGS__) | |
365 | #define kvm_debug(fmt, ...) \ | |
366 | pr_debug("kvm [%i]: " fmt, task_pid_nr(current), ## __VA_ARGS__) | |
367 | #define kvm_pr_unimpl(fmt, ...) \ | |
368 | pr_err_ratelimited("kvm [%i]: " fmt, \ | |
369 | task_tgid_nr(current), ## __VA_ARGS__) | |
f0242478 | 370 | |
a737f256 CD |
371 | /* The guest did something we don't support. */ |
372 | #define vcpu_unimpl(vcpu, fmt, ...) \ | |
373 | kvm_pr_unimpl("vcpu%i " fmt, (vcpu)->vcpu_id, ## __VA_ARGS__) | |
6aa8b732 | 374 | |
988a2cae GN |
375 | static inline struct kvm_vcpu *kvm_get_vcpu(struct kvm *kvm, int i) |
376 | { | |
377 | smp_rmb(); | |
378 | return kvm->vcpus[i]; | |
379 | } | |
380 | ||
381 | #define kvm_for_each_vcpu(idx, vcpup, kvm) \ | |
b42fc3cb JM |
382 | for (idx = 0; \ |
383 | idx < atomic_read(&kvm->online_vcpus) && \ | |
384 | (vcpup = kvm_get_vcpu(kvm, idx)) != NULL; \ | |
385 | idx++) | |
988a2cae | 386 | |
be6ba0f0 XG |
387 | #define kvm_for_each_memslot(memslot, slots) \ |
388 | for (memslot = &slots->memslots[0]; \ | |
bf3e05bc XG |
389 | memslot < slots->memslots + KVM_MEM_SLOTS_NUM && memslot->npages;\ |
390 | memslot++) | |
be6ba0f0 | 391 | |
fb3f0f51 RR |
392 | int kvm_vcpu_init(struct kvm_vcpu *vcpu, struct kvm *kvm, unsigned id); |
393 | void kvm_vcpu_uninit(struct kvm_vcpu *vcpu); | |
394 | ||
313a3dc7 CO |
395 | void vcpu_load(struct kvm_vcpu *vcpu); |
396 | void vcpu_put(struct kvm_vcpu *vcpu); | |
397 | ||
0ee75bea | 398 | int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align, |
c16f862d | 399 | struct module *module); |
cb498ea2 | 400 | void kvm_exit(void); |
6aa8b732 | 401 | |
d39f13b0 IE |
402 | void kvm_get_kvm(struct kvm *kvm); |
403 | void kvm_put_kvm(struct kvm *kvm); | |
be593d62 | 404 | void update_memslots(struct kvm_memslots *slots, struct kvm_memory_slot *new); |
d39f13b0 | 405 | |
90d83dc3 LJ |
406 | static inline struct kvm_memslots *kvm_memslots(struct kvm *kvm) |
407 | { | |
408 | return rcu_dereference_check(kvm->memslots, | |
409 | srcu_read_lock_held(&kvm->srcu) | |
410 | || lockdep_is_held(&kvm->slots_lock)); | |
411 | } | |
412 | ||
28a37544 XG |
413 | static inline struct kvm_memory_slot * |
414 | id_to_memslot(struct kvm_memslots *slots, int id) | |
415 | { | |
f85e2cb5 XG |
416 | int index = slots->id_to_index[id]; |
417 | struct kvm_memory_slot *slot; | |
bf3e05bc | 418 | |
f85e2cb5 | 419 | slot = &slots->memslots[index]; |
bf3e05bc | 420 | |
f85e2cb5 XG |
421 | WARN_ON(slot->id != id); |
422 | return slot; | |
28a37544 XG |
423 | } |
424 | ||
f9d46eb0 | 425 | int kvm_is_error_hva(unsigned long addr); |
210c7c4d IE |
426 | int kvm_set_memory_region(struct kvm *kvm, |
427 | struct kvm_userspace_memory_region *mem, | |
428 | int user_alloc); | |
f78e0e2e SY |
429 | int __kvm_set_memory_region(struct kvm *kvm, |
430 | struct kvm_userspace_memory_region *mem, | |
431 | int user_alloc); | |
db3fe4eb TY |
432 | void kvm_arch_free_memslot(struct kvm_memory_slot *free, |
433 | struct kvm_memory_slot *dont); | |
434 | int kvm_arch_create_memslot(struct kvm_memory_slot *slot, unsigned long npages); | |
f7784b8e MT |
435 | int kvm_arch_prepare_memory_region(struct kvm *kvm, |
436 | struct kvm_memory_slot *memslot, | |
437 | struct kvm_memory_slot old, | |
438 | struct kvm_userspace_memory_region *mem, | |
439 | int user_alloc); | |
440 | void kvm_arch_commit_memory_region(struct kvm *kvm, | |
0de10343 ZX |
441 | struct kvm_userspace_memory_region *mem, |
442 | struct kvm_memory_slot old, | |
443 | int user_alloc); | |
db3fe4eb | 444 | bool kvm_largepages_enabled(void); |
54dee993 | 445 | void kvm_disable_largepages(void); |
34d4cb8f | 446 | void kvm_arch_flush_shadow(struct kvm *kvm); |
a983fb23 | 447 | |
48987781 XG |
448 | int gfn_to_page_many_atomic(struct kvm *kvm, gfn_t gfn, struct page **pages, |
449 | int nr_pages); | |
450 | ||
954bbbc2 | 451 | struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn); |
05da4558 | 452 | unsigned long gfn_to_hva(struct kvm *kvm, gfn_t gfn); |
b4231d61 IE |
453 | void kvm_release_page_clean(struct page *page); |
454 | void kvm_release_page_dirty(struct page *page); | |
35149e21 AL |
455 | void kvm_set_page_dirty(struct page *page); |
456 | void kvm_set_page_accessed(struct page *page); | |
457 | ||
d5661048 | 458 | pfn_t hva_to_pfn_atomic(unsigned long addr); |
365fb3fd | 459 | pfn_t gfn_to_pfn_atomic(struct kvm *kvm, gfn_t gfn); |
612819c3 MT |
460 | pfn_t gfn_to_pfn_async(struct kvm *kvm, gfn_t gfn, bool *async, |
461 | bool write_fault, bool *writable); | |
35149e21 | 462 | pfn_t gfn_to_pfn(struct kvm *kvm, gfn_t gfn); |
612819c3 MT |
463 | pfn_t gfn_to_pfn_prot(struct kvm *kvm, gfn_t gfn, bool write_fault, |
464 | bool *writable); | |
d5661048 | 465 | pfn_t gfn_to_pfn_memslot(struct kvm_memory_slot *slot, gfn_t gfn); |
32cad84f | 466 | void kvm_release_pfn_dirty(pfn_t pfn); |
35149e21 AL |
467 | void kvm_release_pfn_clean(pfn_t pfn); |
468 | void kvm_set_pfn_dirty(pfn_t pfn); | |
469 | void kvm_set_pfn_accessed(pfn_t pfn); | |
470 | void kvm_get_pfn(pfn_t pfn); | |
471 | ||
195aefde IE |
472 | int kvm_read_guest_page(struct kvm *kvm, gfn_t gfn, void *data, int offset, |
473 | int len); | |
7ec54588 MT |
474 | int kvm_read_guest_atomic(struct kvm *kvm, gpa_t gpa, void *data, |
475 | unsigned long len); | |
195aefde | 476 | int kvm_read_guest(struct kvm *kvm, gpa_t gpa, void *data, unsigned long len); |
e03b644f GN |
477 | int kvm_read_guest_cached(struct kvm *kvm, struct gfn_to_hva_cache *ghc, |
478 | void *data, unsigned long len); | |
195aefde IE |
479 | int kvm_write_guest_page(struct kvm *kvm, gfn_t gfn, const void *data, |
480 | int offset, int len); | |
481 | int kvm_write_guest(struct kvm *kvm, gpa_t gpa, const void *data, | |
482 | unsigned long len); | |
49c7754c GN |
483 | int kvm_write_guest_cached(struct kvm *kvm, struct gfn_to_hva_cache *ghc, |
484 | void *data, unsigned long len); | |
485 | int kvm_gfn_to_hva_cache_init(struct kvm *kvm, struct gfn_to_hva_cache *ghc, | |
486 | gpa_t gpa); | |
195aefde IE |
487 | int kvm_clear_guest_page(struct kvm *kvm, gfn_t gfn, int offset, int len); |
488 | int kvm_clear_guest(struct kvm *kvm, gpa_t gpa, unsigned long len); | |
6aa8b732 | 489 | struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn); |
e0d62c7f | 490 | int kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn); |
8f0b1ab6 | 491 | unsigned long kvm_host_page_size(struct kvm *kvm, gfn_t gfn); |
6aa8b732 | 492 | void mark_page_dirty(struct kvm *kvm, gfn_t gfn); |
49c7754c GN |
493 | void mark_page_dirty_in_slot(struct kvm *kvm, struct kvm_memory_slot *memslot, |
494 | gfn_t gfn); | |
6aa8b732 | 495 | |
8776e519 | 496 | void kvm_vcpu_block(struct kvm_vcpu *vcpu); |
b6d33834 | 497 | void kvm_vcpu_kick(struct kvm_vcpu *vcpu); |
41628d33 | 498 | bool kvm_vcpu_yield_to(struct kvm_vcpu *target); |
d255f4f2 | 499 | void kvm_vcpu_on_spin(struct kvm_vcpu *vcpu); |
6aa8b732 | 500 | void kvm_resched(struct kvm_vcpu *vcpu); |
7702fd1f AK |
501 | void kvm_load_guest_fpu(struct kvm_vcpu *vcpu); |
502 | void kvm_put_guest_fpu(struct kvm_vcpu *vcpu); | |
a4ee1ca4 | 503 | |
d9e368d6 | 504 | void kvm_flush_remote_tlbs(struct kvm *kvm); |
2e53d63a | 505 | void kvm_reload_remote_mmus(struct kvm *kvm); |
6aa8b732 | 506 | |
043405e1 CO |
507 | long kvm_arch_dev_ioctl(struct file *filp, |
508 | unsigned int ioctl, unsigned long arg); | |
313a3dc7 CO |
509 | long kvm_arch_vcpu_ioctl(struct file *filp, |
510 | unsigned int ioctl, unsigned long arg); | |
5b1c1493 | 511 | int kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf); |
018d00d2 ZX |
512 | |
513 | int kvm_dev_ioctl_check_extension(long ext); | |
514 | ||
5bb064dc ZX |
515 | int kvm_get_dirty_log(struct kvm *kvm, |
516 | struct kvm_dirty_log *log, int *is_dirty); | |
517 | int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, | |
518 | struct kvm_dirty_log *log); | |
519 | ||
1fe779f8 CO |
520 | int kvm_vm_ioctl_set_memory_region(struct kvm *kvm, |
521 | struct | |
522 | kvm_userspace_memory_region *mem, | |
523 | int user_alloc); | |
23d43cf9 | 524 | int kvm_vm_ioctl_irq_line(struct kvm *kvm, struct kvm_irq_level *irq_level); |
1fe779f8 CO |
525 | long kvm_arch_vm_ioctl(struct file *filp, |
526 | unsigned int ioctl, unsigned long arg); | |
313a3dc7 | 527 | |
d0752060 HB |
528 | int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu); |
529 | int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu); | |
530 | ||
8b006791 ZX |
531 | int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu, |
532 | struct kvm_translation *tr); | |
533 | ||
b6c7a5dc HB |
534 | int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs); |
535 | int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs); | |
536 | int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu, | |
537 | struct kvm_sregs *sregs); | |
538 | int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu, | |
539 | struct kvm_sregs *sregs); | |
62d9f0db MT |
540 | int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu, |
541 | struct kvm_mp_state *mp_state); | |
542 | int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, | |
543 | struct kvm_mp_state *mp_state); | |
d0bfb940 JK |
544 | int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu, |
545 | struct kvm_guest_debug *dbg); | |
b6c7a5dc HB |
546 | int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run); |
547 | ||
f8c16bba ZX |
548 | int kvm_arch_init(void *opaque); |
549 | void kvm_arch_exit(void); | |
043405e1 | 550 | |
e9b11c17 ZX |
551 | int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu); |
552 | void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu); | |
553 | ||
554 | void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu); | |
555 | void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu); | |
556 | void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu); | |
557 | struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id); | |
26e5215f | 558 | int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu); |
d40ccc62 | 559 | void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu); |
e9b11c17 ZX |
560 | |
561 | int kvm_arch_vcpu_reset(struct kvm_vcpu *vcpu); | |
10474ae8 | 562 | int kvm_arch_hardware_enable(void *garbage); |
e9b11c17 ZX |
563 | void kvm_arch_hardware_disable(void *garbage); |
564 | int kvm_arch_hardware_setup(void); | |
565 | void kvm_arch_hardware_unsetup(void); | |
566 | void kvm_arch_check_processor_compat(void *rtn); | |
1d737c8a | 567 | int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu); |
b6d33834 | 568 | int kvm_arch_vcpu_should_kick(struct kvm_vcpu *vcpu); |
e9b11c17 | 569 | |
d19a9cd2 ZX |
570 | void kvm_free_physmem(struct kvm *kvm); |
571 | ||
c1a7b32a TY |
572 | void *kvm_kvzalloc(unsigned long size); |
573 | void kvm_kvfree(const void *addr); | |
574 | ||
d89f5eff JK |
575 | #ifndef __KVM_HAVE_ARCH_VM_ALLOC |
576 | static inline struct kvm *kvm_arch_alloc_vm(void) | |
577 | { | |
578 | return kzalloc(sizeof(struct kvm), GFP_KERNEL); | |
579 | } | |
580 | ||
581 | static inline void kvm_arch_free_vm(struct kvm *kvm) | |
582 | { | |
583 | kfree(kvm); | |
584 | } | |
585 | #endif | |
586 | ||
b6d33834 CD |
587 | static inline wait_queue_head_t *kvm_arch_vcpu_wq(struct kvm_vcpu *vcpu) |
588 | { | |
2246f8b5 AG |
589 | #ifdef __KVM_HAVE_ARCH_WQP |
590 | return vcpu->arch.wqp; | |
591 | #else | |
b6d33834 | 592 | return &vcpu->wq; |
b6d33834 | 593 | #endif |
2246f8b5 | 594 | } |
b6d33834 | 595 | |
e08b9637 | 596 | int kvm_arch_init_vm(struct kvm *kvm, unsigned long type); |
d19a9cd2 | 597 | void kvm_arch_destroy_vm(struct kvm *kvm); |
8a98f664 | 598 | void kvm_free_all_assigned_devices(struct kvm *kvm); |
ad8ba2cd | 599 | void kvm_arch_sync_events(struct kvm *kvm); |
e9b11c17 | 600 | |
3d80840d | 601 | int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu); |
5736199a | 602 | void kvm_vcpu_kick(struct kvm_vcpu *vcpu); |
682c59a3 | 603 | |
a2766325 | 604 | bool kvm_is_mmio_pfn(pfn_t pfn); |
c77fb9dc | 605 | |
62c476c7 BAY |
606 | struct kvm_irq_ack_notifier { |
607 | struct hlist_node link; | |
608 | unsigned gsi; | |
609 | void (*irq_acked)(struct kvm_irq_ack_notifier *kian); | |
610 | }; | |
611 | ||
612 | struct kvm_assigned_dev_kernel { | |
613 | struct kvm_irq_ack_notifier ack_notifier; | |
62c476c7 BAY |
614 | struct list_head list; |
615 | int assigned_dev_id; | |
ab9f4ecb | 616 | int host_segnr; |
62c476c7 BAY |
617 | int host_busnr; |
618 | int host_devfn; | |
c1e01514 | 619 | unsigned int entries_nr; |
62c476c7 | 620 | int host_irq; |
defaf158 | 621 | bool host_irq_disabled; |
07700a94 | 622 | bool pci_2_3; |
c1e01514 | 623 | struct msix_entry *host_msix_entries; |
62c476c7 | 624 | int guest_irq; |
0645211c | 625 | struct msix_entry *guest_msix_entries; |
4f906c19 | 626 | unsigned long irq_requested_type; |
5550af4d | 627 | int irq_source_id; |
b653574a | 628 | int flags; |
62c476c7 BAY |
629 | struct pci_dev *dev; |
630 | struct kvm *kvm; | |
0645211c | 631 | spinlock_t intx_lock; |
cf9eeac4 | 632 | spinlock_t intx_mask_lock; |
1e001d49 | 633 | char irq_name[32]; |
f8fcfd77 | 634 | struct pci_saved_state *pci_saved_state; |
62c476c7 | 635 | }; |
75858a84 AK |
636 | |
637 | struct kvm_irq_mask_notifier { | |
638 | void (*func)(struct kvm_irq_mask_notifier *kimn, bool masked); | |
639 | int irq; | |
640 | struct hlist_node link; | |
641 | }; | |
642 | ||
643 | void kvm_register_irq_mask_notifier(struct kvm *kvm, int irq, | |
644 | struct kvm_irq_mask_notifier *kimn); | |
645 | void kvm_unregister_irq_mask_notifier(struct kvm *kvm, int irq, | |
646 | struct kvm_irq_mask_notifier *kimn); | |
4a994358 GN |
647 | void kvm_fire_mask_notifiers(struct kvm *kvm, unsigned irqchip, unsigned pin, |
648 | bool mask); | |
75858a84 | 649 | |
46e624b9 GN |
650 | #ifdef __KVM_HAVE_IOAPIC |
651 | void kvm_get_intr_delivery_bitmask(struct kvm_ioapic *ioapic, | |
652 | union kvm_ioapic_redirect_entry *entry, | |
653 | unsigned long *deliver_bitmask); | |
654 | #endif | |
655 | int kvm_set_irq(struct kvm *kvm, int irq_source_id, u32 irq, int level); | |
bd2b53b2 MT |
656 | int kvm_set_msi(struct kvm_kernel_irq_routing_entry *irq_entry, struct kvm *kvm, |
657 | int irq_source_id, int level); | |
44882eed | 658 | void kvm_notify_acked_irq(struct kvm *kvm, unsigned irqchip, unsigned pin); |
3de42dc0 XZ |
659 | void kvm_register_irq_ack_notifier(struct kvm *kvm, |
660 | struct kvm_irq_ack_notifier *kian); | |
fa40a821 MT |
661 | void kvm_unregister_irq_ack_notifier(struct kvm *kvm, |
662 | struct kvm_irq_ack_notifier *kian); | |
5550af4d SY |
663 | int kvm_request_irq_source_id(struct kvm *kvm); |
664 | void kvm_free_irq_source_id(struct kvm *kvm, int irq_source_id); | |
62c476c7 | 665 | |
522c68c4 SY |
666 | /* For vcpu->arch.iommu_flags */ |
667 | #define KVM_IOMMU_CACHE_COHERENCY 0x1 | |
668 | ||
19de40a8 | 669 | #ifdef CONFIG_IOMMU_API |
3ad26d81 | 670 | int kvm_iommu_map_pages(struct kvm *kvm, struct kvm_memory_slot *slot); |
32f6daad | 671 | void kvm_iommu_unmap_pages(struct kvm *kvm, struct kvm_memory_slot *slot); |
260782bc | 672 | int kvm_iommu_map_guest(struct kvm *kvm); |
62c476c7 | 673 | int kvm_iommu_unmap_guest(struct kvm *kvm); |
260782bc WH |
674 | int kvm_assign_device(struct kvm *kvm, |
675 | struct kvm_assigned_dev_kernel *assigned_dev); | |
0a920356 WH |
676 | int kvm_deassign_device(struct kvm *kvm, |
677 | struct kvm_assigned_dev_kernel *assigned_dev); | |
19de40a8 | 678 | #else /* CONFIG_IOMMU_API */ |
62c476c7 | 679 | static inline int kvm_iommu_map_pages(struct kvm *kvm, |
d7a79b6c | 680 | struct kvm_memory_slot *slot) |
62c476c7 BAY |
681 | { |
682 | return 0; | |
683 | } | |
684 | ||
32f6daad AW |
685 | static inline void kvm_iommu_unmap_pages(struct kvm *kvm, |
686 | struct kvm_memory_slot *slot) | |
687 | { | |
688 | } | |
689 | ||
260782bc | 690 | static inline int kvm_iommu_map_guest(struct kvm *kvm) |
62c476c7 BAY |
691 | { |
692 | return -ENODEV; | |
693 | } | |
694 | ||
695 | static inline int kvm_iommu_unmap_guest(struct kvm *kvm) | |
696 | { | |
697 | return 0; | |
698 | } | |
260782bc WH |
699 | |
700 | static inline int kvm_assign_device(struct kvm *kvm, | |
701 | struct kvm_assigned_dev_kernel *assigned_dev) | |
702 | { | |
703 | return 0; | |
704 | } | |
0a920356 WH |
705 | |
706 | static inline int kvm_deassign_device(struct kvm *kvm, | |
707 | struct kvm_assigned_dev_kernel *assigned_dev) | |
708 | { | |
709 | return 0; | |
710 | } | |
19de40a8 | 711 | #endif /* CONFIG_IOMMU_API */ |
62c476c7 | 712 | |
d172fcd3 LV |
713 | static inline void kvm_guest_enter(void) |
714 | { | |
8fa22068 | 715 | BUG_ON(preemptible()); |
e56a7a28 | 716 | account_system_vtime(current); |
d172fcd3 | 717 | current->flags |= PF_VCPU; |
8fa22068 GN |
718 | /* KVM does not hold any references to rcu protected data when it |
719 | * switches CPU into a guest mode. In fact switching to a guest mode | |
720 | * is very similar to exiting to userspase from rcu point of view. In | |
721 | * addition CPU may stay in a guest mode for quite a long time (up to | |
722 | * one time slice). Lets treat guest mode as quiescent state, just like | |
723 | * we do with user-mode execution. | |
724 | */ | |
725 | rcu_virt_note_context_switch(smp_processor_id()); | |
d172fcd3 LV |
726 | } |
727 | ||
728 | static inline void kvm_guest_exit(void) | |
729 | { | |
e56a7a28 | 730 | account_system_vtime(current); |
d172fcd3 LV |
731 | current->flags &= ~PF_VCPU; |
732 | } | |
733 | ||
9d4cba7f PM |
734 | /* |
735 | * search_memslots() and __gfn_to_memslot() are here because they are | |
736 | * used in non-modular code in arch/powerpc/kvm/book3s_hv_rm_mmu.c. | |
737 | * gfn_to_memslot() itself isn't here as an inline because that would | |
738 | * bloat other code too much. | |
739 | */ | |
740 | static inline struct kvm_memory_slot * | |
741 | search_memslots(struct kvm_memslots *slots, gfn_t gfn) | |
742 | { | |
743 | struct kvm_memory_slot *memslot; | |
744 | ||
745 | kvm_for_each_memslot(memslot, slots) | |
746 | if (gfn >= memslot->base_gfn && | |
747 | gfn < memslot->base_gfn + memslot->npages) | |
748 | return memslot; | |
749 | ||
750 | return NULL; | |
751 | } | |
752 | ||
753 | static inline struct kvm_memory_slot * | |
754 | __gfn_to_memslot(struct kvm_memslots *slots, gfn_t gfn) | |
755 | { | |
756 | return search_memslots(slots, gfn); | |
757 | } | |
758 | ||
0ee8dcb8 XG |
759 | static inline int memslot_id(struct kvm *kvm, gfn_t gfn) |
760 | { | |
761 | return gfn_to_memslot(kvm, gfn)->id; | |
762 | } | |
763 | ||
fb03cb6f TY |
764 | static inline gfn_t gfn_to_index(gfn_t gfn, gfn_t base_gfn, int level) |
765 | { | |
766 | /* KVM_HPAGE_GFN_SHIFT(PT_PAGE_TABLE_LEVEL) must be 0. */ | |
767 | return (gfn >> KVM_HPAGE_GFN_SHIFT(level)) - | |
768 | (base_gfn >> KVM_HPAGE_GFN_SHIFT(level)); | |
769 | } | |
770 | ||
d19a748b TY |
771 | static inline gfn_t |
772 | hva_to_gfn_memslot(unsigned long hva, struct kvm_memory_slot *slot) | |
773 | { | |
774 | gfn_t gfn_offset = (hva - slot->userspace_addr) >> PAGE_SHIFT; | |
775 | ||
776 | return slot->base_gfn + gfn_offset; | |
777 | } | |
778 | ||
887c08ac XG |
779 | static inline unsigned long gfn_to_hva_memslot(struct kvm_memory_slot *slot, |
780 | gfn_t gfn) | |
781 | { | |
782 | return slot->userspace_addr + (gfn - slot->base_gfn) * PAGE_SIZE; | |
783 | } | |
784 | ||
1755fbcc AK |
785 | static inline gpa_t gfn_to_gpa(gfn_t gfn) |
786 | { | |
787 | return (gpa_t)gfn << PAGE_SHIFT; | |
788 | } | |
6aa8b732 | 789 | |
c30a358d JR |
790 | static inline gfn_t gpa_to_gfn(gpa_t gpa) |
791 | { | |
792 | return (gfn_t)(gpa >> PAGE_SHIFT); | |
793 | } | |
794 | ||
62c476c7 BAY |
795 | static inline hpa_t pfn_to_hpa(pfn_t pfn) |
796 | { | |
797 | return (hpa_t)pfn << PAGE_SHIFT; | |
798 | } | |
799 | ||
2f599714 | 800 | static inline void kvm_migrate_timers(struct kvm_vcpu *vcpu) |
2f52d58c AK |
801 | { |
802 | set_bit(KVM_REQ_MIGRATE_TIMER, &vcpu->requests); | |
803 | } | |
804 | ||
ba1389b7 AK |
805 | enum kvm_stat_kind { |
806 | KVM_STAT_VM, | |
807 | KVM_STAT_VCPU, | |
808 | }; | |
809 | ||
417bc304 HB |
810 | struct kvm_stats_debugfs_item { |
811 | const char *name; | |
812 | int offset; | |
ba1389b7 | 813 | enum kvm_stat_kind kind; |
417bc304 HB |
814 | struct dentry *dentry; |
815 | }; | |
816 | extern struct kvm_stats_debugfs_item debugfs_entries[]; | |
76f7c879 | 817 | extern struct dentry *kvm_debugfs_dir; |
d4c9ff2d | 818 | |
36c1ed82 | 819 | #if defined(CONFIG_MMU_NOTIFIER) && defined(KVM_ARCH_WANT_MMU_NOTIFIER) |
e930bffe AA |
820 | static inline int mmu_notifier_retry(struct kvm_vcpu *vcpu, unsigned long mmu_seq) |
821 | { | |
822 | if (unlikely(vcpu->kvm->mmu_notifier_count)) | |
823 | return 1; | |
824 | /* | |
a355aa54 PM |
825 | * Ensure the read of mmu_notifier_count happens before the read |
826 | * of mmu_notifier_seq. This interacts with the smp_wmb() in | |
827 | * mmu_notifier_invalidate_range_end to make sure that the caller | |
828 | * either sees the old (non-zero) value of mmu_notifier_count or | |
829 | * the new (incremented) value of mmu_notifier_seq. | |
830 | * PowerPC Book3s HV KVM calls this under a per-page lock | |
831 | * rather than under kvm->mmu_lock, for scalability, so | |
832 | * can't rely on kvm->mmu_lock to keep things ordered. | |
e930bffe | 833 | */ |
a355aa54 | 834 | smp_rmb(); |
e930bffe AA |
835 | if (vcpu->kvm->mmu_notifier_seq != mmu_seq) |
836 | return 1; | |
837 | return 0; | |
838 | } | |
839 | #endif | |
840 | ||
9900b4b4 | 841 | #ifdef KVM_CAP_IRQ_ROUTING |
399ec807 AK |
842 | |
843 | #define KVM_MAX_IRQ_ROUTES 1024 | |
844 | ||
845 | int kvm_setup_default_irq_routing(struct kvm *kvm); | |
846 | int kvm_set_irq_routing(struct kvm *kvm, | |
847 | const struct kvm_irq_routing_entry *entries, | |
848 | unsigned nr, | |
849 | unsigned flags); | |
850 | void kvm_free_irq_routing(struct kvm *kvm); | |
851 | ||
07975ad3 JK |
852 | int kvm_send_userspace_msi(struct kvm *kvm, struct kvm_msi *msi); |
853 | ||
399ec807 AK |
854 | #else |
855 | ||
856 | static inline void kvm_free_irq_routing(struct kvm *kvm) {} | |
857 | ||
858 | #endif | |
859 | ||
721eecbf GH |
860 | #ifdef CONFIG_HAVE_KVM_EVENTFD |
861 | ||
d34e6b17 | 862 | void kvm_eventfd_init(struct kvm *kvm); |
d4db2935 | 863 | int kvm_irqfd(struct kvm *kvm, struct kvm_irqfd *args); |
721eecbf | 864 | void kvm_irqfd_release(struct kvm *kvm); |
bd2b53b2 | 865 | void kvm_irq_routing_update(struct kvm *, struct kvm_irq_routing_table *); |
d34e6b17 | 866 | int kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args); |
721eecbf GH |
867 | |
868 | #else | |
869 | ||
d34e6b17 | 870 | static inline void kvm_eventfd_init(struct kvm *kvm) {} |
bd2b53b2 | 871 | |
d4db2935 | 872 | static inline int kvm_irqfd(struct kvm *kvm, struct kvm_irqfd *args) |
721eecbf GH |
873 | { |
874 | return -EINVAL; | |
875 | } | |
876 | ||
877 | static inline void kvm_irqfd_release(struct kvm *kvm) {} | |
bd2b53b2 | 878 | |
27923eb1 | 879 | #ifdef CONFIG_HAVE_KVM_IRQCHIP |
bd2b53b2 MT |
880 | static inline void kvm_irq_routing_update(struct kvm *kvm, |
881 | struct kvm_irq_routing_table *irq_rt) | |
882 | { | |
883 | rcu_assign_pointer(kvm->irq_routing, irq_rt); | |
884 | } | |
27923eb1 | 885 | #endif |
bd2b53b2 | 886 | |
d34e6b17 GH |
887 | static inline int kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args) |
888 | { | |
889 | return -ENOSYS; | |
890 | } | |
721eecbf GH |
891 | |
892 | #endif /* CONFIG_HAVE_KVM_EVENTFD */ | |
893 | ||
73880c80 | 894 | #ifdef CONFIG_KVM_APIC_ARCHITECTURE |
c5af89b6 GN |
895 | static inline bool kvm_vcpu_is_bsp(struct kvm_vcpu *vcpu) |
896 | { | |
d3efc8ef | 897 | return vcpu->kvm->bsp_vcpu_id == vcpu->vcpu_id; |
c5af89b6 | 898 | } |
3e515705 AK |
899 | |
900 | bool kvm_vcpu_compatible(struct kvm_vcpu *vcpu); | |
901 | ||
902 | #else | |
903 | ||
904 | static inline bool kvm_vcpu_compatible(struct kvm_vcpu *vcpu) { return true; } | |
905 | ||
6aa8b732 | 906 | #endif |
bfd99ff5 AK |
907 | |
908 | #ifdef __KVM_HAVE_DEVICE_ASSIGNMENT | |
909 | ||
910 | long kvm_vm_ioctl_assigned_device(struct kvm *kvm, unsigned ioctl, | |
911 | unsigned long arg); | |
912 | ||
913 | #else | |
914 | ||
915 | static inline long kvm_vm_ioctl_assigned_device(struct kvm *kvm, unsigned ioctl, | |
916 | unsigned long arg) | |
917 | { | |
918 | return -ENOTTY; | |
919 | } | |
920 | ||
73880c80 | 921 | #endif |
bfd99ff5 | 922 | |
a8eeb04a AK |
923 | static inline void kvm_make_request(int req, struct kvm_vcpu *vcpu) |
924 | { | |
925 | set_bit(req, &vcpu->requests); | |
926 | } | |
927 | ||
a8eeb04a AK |
928 | static inline bool kvm_check_request(int req, struct kvm_vcpu *vcpu) |
929 | { | |
0719837c AK |
930 | if (test_bit(req, &vcpu->requests)) { |
931 | clear_bit(req, &vcpu->requests); | |
932 | return true; | |
933 | } else { | |
934 | return false; | |
935 | } | |
a8eeb04a AK |
936 | } |
937 | ||
4c088493 R |
938 | #ifdef CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT |
939 | ||
940 | static inline void kvm_vcpu_set_in_spin_loop(struct kvm_vcpu *vcpu, bool val) | |
941 | { | |
942 | vcpu->spin_loop.in_spin_loop = val; | |
943 | } | |
944 | static inline void kvm_vcpu_set_dy_eligible(struct kvm_vcpu *vcpu, bool val) | |
945 | { | |
946 | vcpu->spin_loop.dy_eligible = val; | |
947 | } | |
948 | ||
949 | #else /* !CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT */ | |
950 | ||
951 | static inline void kvm_vcpu_set_in_spin_loop(struct kvm_vcpu *vcpu, bool val) | |
952 | { | |
953 | } | |
954 | ||
955 | static inline void kvm_vcpu_set_dy_eligible(struct kvm_vcpu *vcpu, bool val) | |
956 | { | |
957 | } | |
958 | ||
06e48c51 R |
959 | static inline bool kvm_vcpu_eligible_for_directed_yield(struct kvm_vcpu *vcpu) |
960 | { | |
961 | return true; | |
962 | } | |
963 | ||
4c088493 | 964 | #endif /* CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT */ |
bfd99ff5 AK |
965 | #endif |
966 |