]>
Commit | Line | Data |
---|---|---|
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 | ||
6c8ee57b | 52 | #define KVM_PFN_ERR_FAULT (-EFAULT) |
e6c1502b | 53 | #define KVM_PFN_ERR_HWPOISON (-EHWPOISON) |
950e9509 | 54 | #define KVM_PFN_ERR_BAD (-ENOENT) |
6c8ee57b | 55 | |
83f09228 XG |
56 | static inline int is_error_pfn(pfn_t pfn) |
57 | { | |
58 | return IS_ERR_VALUE(pfn); | |
59 | } | |
60 | ||
61 | static inline int is_noslot_pfn(pfn_t pfn) | |
62 | { | |
63 | return pfn == -ENOENT; | |
64 | } | |
65 | ||
66 | static inline int is_invalid_pfn(pfn_t pfn) | |
67 | { | |
68 | return !is_noslot_pfn(pfn) && is_error_pfn(pfn); | |
69 | } | |
70 | ||
6cede2e6 XG |
71 | #define KVM_ERR_PTR_BAD_PAGE (ERR_PTR(-ENOENT)) |
72 | ||
73 | static inline int is_error_page(struct page *page) | |
74 | { | |
75 | return IS_ERR(page); | |
76 | } | |
77 | ||
d9e368d6 AK |
78 | /* |
79 | * vcpu->requests bit members | |
80 | */ | |
3176bc3e | 81 | #define KVM_REQ_TLB_FLUSH 0 |
2f52d58c | 82 | #define KVM_REQ_MIGRATE_TIMER 1 |
b209749f | 83 | #define KVM_REQ_REPORT_TPR_ACCESS 2 |
2e53d63a | 84 | #define KVM_REQ_MMU_RELOAD 3 |
71c4dfaf | 85 | #define KVM_REQ_TRIPLE_FAULT 4 |
06e05645 | 86 | #define KVM_REQ_PENDING_TIMER 5 |
d7690175 | 87 | #define KVM_REQ_UNHALT 6 |
4731d4c7 | 88 | #define KVM_REQ_MMU_SYNC 7 |
34c238a1 | 89 | #define KVM_REQ_CLOCK_UPDATE 8 |
32f88400 | 90 | #define KVM_REQ_KICK 9 |
02daab21 | 91 | #define KVM_REQ_DEACTIVATE_FPU 10 |
3842d135 | 92 | #define KVM_REQ_EVENT 11 |
af585b92 | 93 | #define KVM_REQ_APF_HALT 12 |
c9aaa895 | 94 | #define KVM_REQ_STEAL_UPDATE 13 |
7460fb4a | 95 | #define KVM_REQ_NMI 14 |
d6185f20 | 96 | #define KVM_REQ_IMMEDIATE_EXIT 15 |
f5132b01 GN |
97 | #define KVM_REQ_PMU 16 |
98 | #define KVM_REQ_PMI 17 | |
6aa8b732 | 99 | |
5550af4d SY |
100 | #define KVM_USERSPACE_IRQ_SOURCE_ID 0 |
101 | ||
6c474694 | 102 | struct kvm; |
6aa8b732 | 103 | struct kvm_vcpu; |
c16f862d | 104 | extern struct kmem_cache *kvm_vcpu_cache; |
6aa8b732 | 105 | |
743eeb0b SL |
106 | struct kvm_io_range { |
107 | gpa_t addr; | |
108 | int len; | |
109 | struct kvm_io_device *dev; | |
110 | }; | |
111 | ||
786a9f88 | 112 | #define NR_IOBUS_DEVS 1000 |
a1300716 | 113 | |
2eeb2e94 GH |
114 | struct kvm_io_bus { |
115 | int dev_count; | |
a1300716 | 116 | struct kvm_io_range range[]; |
2eeb2e94 GH |
117 | }; |
118 | ||
e93f8a0f MT |
119 | enum kvm_bus { |
120 | KVM_MMIO_BUS, | |
121 | KVM_PIO_BUS, | |
122 | KVM_NR_BUSES | |
123 | }; | |
124 | ||
125 | int kvm_io_bus_write(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr, | |
126 | int len, const void *val); | |
127 | int kvm_io_bus_read(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr, int len, | |
bda9020e | 128 | void *val); |
743eeb0b SL |
129 | int kvm_io_bus_register_dev(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr, |
130 | int len, struct kvm_io_device *dev); | |
e93f8a0f MT |
131 | int kvm_io_bus_unregister_dev(struct kvm *kvm, enum kvm_bus bus_idx, |
132 | struct kvm_io_device *dev); | |
2eeb2e94 | 133 | |
af585b92 GN |
134 | #ifdef CONFIG_KVM_ASYNC_PF |
135 | struct kvm_async_pf { | |
136 | struct work_struct work; | |
137 | struct list_head link; | |
138 | struct list_head queue; | |
139 | struct kvm_vcpu *vcpu; | |
140 | struct mm_struct *mm; | |
141 | gva_t gva; | |
142 | unsigned long addr; | |
143 | struct kvm_arch_async_pf arch; | |
144 | struct page *page; | |
145 | bool done; | |
146 | }; | |
147 | ||
148 | void kvm_clear_async_pf_completion_queue(struct kvm_vcpu *vcpu); | |
149 | void kvm_check_async_pf_completion(struct kvm_vcpu *vcpu); | |
150 | int kvm_setup_async_pf(struct kvm_vcpu *vcpu, gva_t gva, gfn_t gfn, | |
151 | struct kvm_arch_async_pf *arch); | |
344d9588 | 152 | int kvm_async_pf_wakeup_all(struct kvm_vcpu *vcpu); |
af585b92 GN |
153 | #endif |
154 | ||
6b7e2d09 XG |
155 | enum { |
156 | OUTSIDE_GUEST_MODE, | |
157 | IN_GUEST_MODE, | |
c142786c AK |
158 | EXITING_GUEST_MODE, |
159 | READING_SHADOW_PAGE_TABLES, | |
6b7e2d09 XG |
160 | }; |
161 | ||
f78146b0 AK |
162 | /* |
163 | * Sometimes a large or cross-page mmio needs to be broken up into separate | |
164 | * exits for userspace servicing. | |
165 | */ | |
166 | struct kvm_mmio_fragment { | |
167 | gpa_t gpa; | |
168 | void *data; | |
169 | unsigned len; | |
170 | }; | |
171 | ||
d17fbbf7 ZX |
172 | struct kvm_vcpu { |
173 | struct kvm *kvm; | |
31bb117e | 174 | #ifdef CONFIG_PREEMPT_NOTIFIERS |
d17fbbf7 | 175 | struct preempt_notifier preempt_notifier; |
31bb117e | 176 | #endif |
6b7e2d09 | 177 | int cpu; |
d17fbbf7 | 178 | int vcpu_id; |
6b7e2d09 XG |
179 | int srcu_idx; |
180 | int mode; | |
d17fbbf7 | 181 | unsigned long requests; |
d0bfb940 | 182 | unsigned long guest_debug; |
6b7e2d09 XG |
183 | |
184 | struct mutex mutex; | |
185 | struct kvm_run *run; | |
f656ce01 | 186 | |
d17fbbf7 | 187 | int fpu_active; |
2acf923e | 188 | int guest_fpu_loaded, guest_xcr0_loaded; |
d17fbbf7 | 189 | wait_queue_head_t wq; |
34bb10b7 | 190 | struct pid *pid; |
d17fbbf7 ZX |
191 | int sigset_active; |
192 | sigset_t sigset; | |
193 | struct kvm_vcpu_stat stat; | |
194 | ||
34c16eec | 195 | #ifdef CONFIG_HAS_IOMEM |
d17fbbf7 ZX |
196 | int mmio_needed; |
197 | int mmio_read_completed; | |
198 | int mmio_is_write; | |
f78146b0 AK |
199 | int mmio_cur_fragment; |
200 | int mmio_nr_fragments; | |
201 | struct kvm_mmio_fragment mmio_fragments[KVM_MAX_MMIO_FRAGMENTS]; | |
34c16eec | 202 | #endif |
1165f5fe | 203 | |
af585b92 GN |
204 | #ifdef CONFIG_KVM_ASYNC_PF |
205 | struct { | |
206 | u32 queued; | |
207 | struct list_head queue; | |
208 | struct list_head done; | |
209 | spinlock_t lock; | |
210 | } async_pf; | |
211 | #endif | |
212 | ||
4c088493 R |
213 | #ifdef CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT |
214 | /* | |
215 | * Cpu relax intercept or pause loop exit optimization | |
216 | * in_spin_loop: set when a vcpu does a pause loop exit | |
217 | * or cpu relax intercepted. | |
218 | * dy_eligible: indicates whether vcpu is eligible for directed yield. | |
219 | */ | |
220 | struct { | |
221 | bool in_spin_loop; | |
222 | bool dy_eligible; | |
223 | } spin_loop; | |
224 | #endif | |
d657a98e ZX |
225 | struct kvm_vcpu_arch arch; |
226 | }; | |
227 | ||
6b7e2d09 XG |
228 | static inline int kvm_vcpu_exiting_guest_mode(struct kvm_vcpu *vcpu) |
229 | { | |
230 | return cmpxchg(&vcpu->mode, IN_GUEST_MODE, EXITING_GUEST_MODE); | |
231 | } | |
232 | ||
660c22c4 TY |
233 | /* |
234 | * Some of the bitops functions do not support too long bitmaps. | |
235 | * This number must be determined not to exceed such limits. | |
236 | */ | |
237 | #define KVM_MEM_MAX_NR_PAGES ((1UL << 31) - 1) | |
238 | ||
6aa8b732 AK |
239 | struct kvm_memory_slot { |
240 | gfn_t base_gfn; | |
241 | unsigned long npages; | |
242 | unsigned long flags; | |
6aa8b732 | 243 | unsigned long *dirty_bitmap; |
db3fe4eb | 244 | struct kvm_arch_memory_slot arch; |
8a7ae055 | 245 | unsigned long userspace_addr; |
80b14b5b | 246 | int user_alloc; |
e36d96f7 | 247 | int id; |
6aa8b732 AK |
248 | }; |
249 | ||
87bf6e7d TY |
250 | static inline unsigned long kvm_dirty_bitmap_bytes(struct kvm_memory_slot *memslot) |
251 | { | |
252 | return ALIGN(memslot->npages, BITS_PER_LONG) / 8; | |
253 | } | |
254 | ||
399ec807 AK |
255 | struct kvm_kernel_irq_routing_entry { |
256 | u32 gsi; | |
5116d8f6 | 257 | u32 type; |
4925663a | 258 | int (*set)(struct kvm_kernel_irq_routing_entry *e, |
1a6e4a8c | 259 | struct kvm *kvm, int irq_source_id, int level); |
399ec807 AK |
260 | union { |
261 | struct { | |
262 | unsigned irqchip; | |
263 | unsigned pin; | |
264 | } irqchip; | |
79950e10 | 265 | struct msi_msg msi; |
399ec807 | 266 | }; |
46e624b9 GN |
267 | struct hlist_node link; |
268 | }; | |
269 | ||
3e71f88b GN |
270 | #ifdef __KVM_HAVE_IOAPIC |
271 | ||
46e624b9 | 272 | struct kvm_irq_routing_table { |
3e71f88b | 273 | int chip[KVM_NR_IRQCHIPS][KVM_IOAPIC_NUM_PINS]; |
46e624b9 GN |
274 | struct kvm_kernel_irq_routing_entry *rt_entries; |
275 | u32 nr_rt_entries; | |
276 | /* | |
277 | * Array indexed by gsi. Each entry contains list of irq chips | |
278 | * the gsi is connected to. | |
279 | */ | |
280 | struct hlist_head map[0]; | |
399ec807 AK |
281 | }; |
282 | ||
3e71f88b GN |
283 | #else |
284 | ||
285 | struct kvm_irq_routing_table {}; | |
286 | ||
287 | #endif | |
288 | ||
93a5cef0 XG |
289 | #ifndef KVM_MEM_SLOTS_NUM |
290 | #define KVM_MEM_SLOTS_NUM (KVM_MEMORY_SLOTS + KVM_PRIVATE_MEM_SLOTS) | |
291 | #endif | |
292 | ||
bf3e05bc XG |
293 | /* |
294 | * Note: | |
295 | * memslots are not sorted by id anymore, please use id_to_memslot() | |
296 | * to get the memslot by its id. | |
297 | */ | |
46a26bf5 | 298 | struct kvm_memslots { |
49c7754c | 299 | u64 generation; |
93a5cef0 | 300 | struct kvm_memory_slot memslots[KVM_MEM_SLOTS_NUM]; |
f85e2cb5 XG |
301 | /* The mapping table from slot id to the index in memslots[]. */ |
302 | int id_to_index[KVM_MEM_SLOTS_NUM]; | |
46a26bf5 MT |
303 | }; |
304 | ||
6aa8b732 | 305 | struct kvm { |
aaee2c94 | 306 | spinlock_t mmu_lock; |
79fac95e | 307 | struct mutex slots_lock; |
6d4e4c4f | 308 | struct mm_struct *mm; /* userspace tied to this vm */ |
46a26bf5 | 309 | struct kvm_memslots *memslots; |
bc6678a3 | 310 | struct srcu_struct srcu; |
73880c80 GN |
311 | #ifdef CONFIG_KVM_APIC_ARCHITECTURE |
312 | u32 bsp_vcpu_id; | |
73880c80 | 313 | #endif |
fb3f0f51 | 314 | struct kvm_vcpu *vcpus[KVM_MAX_VCPUS]; |
73880c80 | 315 | atomic_t online_vcpus; |
217ece61 | 316 | int last_boosted_vcpu; |
133de902 | 317 | struct list_head vm_list; |
60eead79 | 318 | struct mutex lock; |
e93f8a0f | 319 | struct kvm_io_bus *buses[KVM_NR_BUSES]; |
721eecbf GH |
320 | #ifdef CONFIG_HAVE_KVM_EVENTFD |
321 | struct { | |
322 | spinlock_t lock; | |
323 | struct list_head items; | |
324 | } irqfds; | |
d34e6b17 | 325 | struct list_head ioeventfds; |
721eecbf | 326 | #endif |
ba1389b7 | 327 | struct kvm_vm_stat stat; |
d69fb81f | 328 | struct kvm_arch arch; |
d39f13b0 | 329 | atomic_t users_count; |
5f94c174 | 330 | #ifdef KVM_COALESCED_MMIO_PAGE_OFFSET |
5f94c174 | 331 | struct kvm_coalesced_mmio_ring *coalesced_mmio_ring; |
2b3c246a SL |
332 | spinlock_t ring_lock; |
333 | struct list_head coalesced_zones; | |
5f94c174 | 334 | #endif |
e930bffe | 335 | |
60eead79 | 336 | struct mutex irq_lock; |
75858a84 | 337 | #ifdef CONFIG_HAVE_KVM_IRQCHIP |
bd2b53b2 MT |
338 | /* |
339 | * Update side is protected by irq_lock and, | |
340 | * if configured, irqfds.lock. | |
341 | */ | |
4b6a2872 | 342 | struct kvm_irq_routing_table __rcu *irq_routing; |
75858a84 | 343 | struct hlist_head mask_notifier_list; |
136bdfee | 344 | struct hlist_head irq_ack_notifier_list; |
75858a84 AK |
345 | #endif |
346 | ||
36c1ed82 | 347 | #if defined(CONFIG_MMU_NOTIFIER) && defined(KVM_ARCH_WANT_MMU_NOTIFIER) |
e930bffe AA |
348 | struct mmu_notifier mmu_notifier; |
349 | unsigned long mmu_notifier_seq; | |
350 | long mmu_notifier_count; | |
351 | #endif | |
5c663a15 | 352 | long tlbs_dirty; |
6aa8b732 AK |
353 | }; |
354 | ||
a737f256 CD |
355 | #define kvm_err(fmt, ...) \ |
356 | pr_err("kvm [%i]: " fmt, task_pid_nr(current), ## __VA_ARGS__) | |
357 | #define kvm_info(fmt, ...) \ | |
358 | pr_info("kvm [%i]: " fmt, task_pid_nr(current), ## __VA_ARGS__) | |
359 | #define kvm_debug(fmt, ...) \ | |
360 | pr_debug("kvm [%i]: " fmt, task_pid_nr(current), ## __VA_ARGS__) | |
361 | #define kvm_pr_unimpl(fmt, ...) \ | |
362 | pr_err_ratelimited("kvm [%i]: " fmt, \ | |
363 | task_tgid_nr(current), ## __VA_ARGS__) | |
f0242478 | 364 | |
a737f256 CD |
365 | /* The guest did something we don't support. */ |
366 | #define vcpu_unimpl(vcpu, fmt, ...) \ | |
367 | kvm_pr_unimpl("vcpu%i " fmt, (vcpu)->vcpu_id, ## __VA_ARGS__) | |
6aa8b732 | 368 | |
988a2cae GN |
369 | static inline struct kvm_vcpu *kvm_get_vcpu(struct kvm *kvm, int i) |
370 | { | |
371 | smp_rmb(); | |
372 | return kvm->vcpus[i]; | |
373 | } | |
374 | ||
375 | #define kvm_for_each_vcpu(idx, vcpup, kvm) \ | |
b42fc3cb JM |
376 | for (idx = 0; \ |
377 | idx < atomic_read(&kvm->online_vcpus) && \ | |
378 | (vcpup = kvm_get_vcpu(kvm, idx)) != NULL; \ | |
379 | idx++) | |
988a2cae | 380 | |
be6ba0f0 XG |
381 | #define kvm_for_each_memslot(memslot, slots) \ |
382 | for (memslot = &slots->memslots[0]; \ | |
bf3e05bc XG |
383 | memslot < slots->memslots + KVM_MEM_SLOTS_NUM && memslot->npages;\ |
384 | memslot++) | |
be6ba0f0 | 385 | |
fb3f0f51 RR |
386 | int kvm_vcpu_init(struct kvm_vcpu *vcpu, struct kvm *kvm, unsigned id); |
387 | void kvm_vcpu_uninit(struct kvm_vcpu *vcpu); | |
388 | ||
313a3dc7 CO |
389 | void vcpu_load(struct kvm_vcpu *vcpu); |
390 | void vcpu_put(struct kvm_vcpu *vcpu); | |
391 | ||
0ee75bea | 392 | int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align, |
c16f862d | 393 | struct module *module); |
cb498ea2 | 394 | void kvm_exit(void); |
6aa8b732 | 395 | |
d39f13b0 IE |
396 | void kvm_get_kvm(struct kvm *kvm); |
397 | void kvm_put_kvm(struct kvm *kvm); | |
be593d62 | 398 | void update_memslots(struct kvm_memslots *slots, struct kvm_memory_slot *new); |
d39f13b0 | 399 | |
90d83dc3 LJ |
400 | static inline struct kvm_memslots *kvm_memslots(struct kvm *kvm) |
401 | { | |
402 | return rcu_dereference_check(kvm->memslots, | |
403 | srcu_read_lock_held(&kvm->srcu) | |
404 | || lockdep_is_held(&kvm->slots_lock)); | |
405 | } | |
406 | ||
28a37544 XG |
407 | static inline struct kvm_memory_slot * |
408 | id_to_memslot(struct kvm_memslots *slots, int id) | |
409 | { | |
f85e2cb5 XG |
410 | int index = slots->id_to_index[id]; |
411 | struct kvm_memory_slot *slot; | |
bf3e05bc | 412 | |
f85e2cb5 | 413 | slot = &slots->memslots[index]; |
bf3e05bc | 414 | |
f85e2cb5 XG |
415 | WARN_ON(slot->id != id); |
416 | return slot; | |
28a37544 XG |
417 | } |
418 | ||
f9d46eb0 | 419 | int kvm_is_error_hva(unsigned long addr); |
210c7c4d IE |
420 | int kvm_set_memory_region(struct kvm *kvm, |
421 | struct kvm_userspace_memory_region *mem, | |
422 | int user_alloc); | |
f78e0e2e SY |
423 | int __kvm_set_memory_region(struct kvm *kvm, |
424 | struct kvm_userspace_memory_region *mem, | |
425 | int user_alloc); | |
db3fe4eb TY |
426 | void kvm_arch_free_memslot(struct kvm_memory_slot *free, |
427 | struct kvm_memory_slot *dont); | |
428 | int kvm_arch_create_memslot(struct kvm_memory_slot *slot, unsigned long npages); | |
f7784b8e MT |
429 | int kvm_arch_prepare_memory_region(struct kvm *kvm, |
430 | struct kvm_memory_slot *memslot, | |
431 | struct kvm_memory_slot old, | |
432 | struct kvm_userspace_memory_region *mem, | |
433 | int user_alloc); | |
434 | void kvm_arch_commit_memory_region(struct kvm *kvm, | |
0de10343 ZX |
435 | struct kvm_userspace_memory_region *mem, |
436 | struct kvm_memory_slot old, | |
437 | int user_alloc); | |
db3fe4eb | 438 | bool kvm_largepages_enabled(void); |
54dee993 | 439 | void kvm_disable_largepages(void); |
34d4cb8f | 440 | void kvm_arch_flush_shadow(struct kvm *kvm); |
a983fb23 | 441 | |
48987781 XG |
442 | int gfn_to_page_many_atomic(struct kvm *kvm, gfn_t gfn, struct page **pages, |
443 | int nr_pages); | |
444 | ||
954bbbc2 | 445 | struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn); |
05da4558 | 446 | unsigned long gfn_to_hva(struct kvm *kvm, gfn_t gfn); |
b4231d61 IE |
447 | void kvm_release_page_clean(struct page *page); |
448 | void kvm_release_page_dirty(struct page *page); | |
35149e21 AL |
449 | void kvm_set_page_dirty(struct page *page); |
450 | void kvm_set_page_accessed(struct page *page); | |
451 | ||
d5661048 | 452 | pfn_t hva_to_pfn_atomic(unsigned long addr); |
365fb3fd | 453 | pfn_t gfn_to_pfn_atomic(struct kvm *kvm, gfn_t gfn); |
612819c3 MT |
454 | pfn_t gfn_to_pfn_async(struct kvm *kvm, gfn_t gfn, bool *async, |
455 | bool write_fault, bool *writable); | |
35149e21 | 456 | pfn_t gfn_to_pfn(struct kvm *kvm, gfn_t gfn); |
612819c3 MT |
457 | pfn_t gfn_to_pfn_prot(struct kvm *kvm, gfn_t gfn, bool write_fault, |
458 | bool *writable); | |
d5661048 | 459 | pfn_t gfn_to_pfn_memslot(struct kvm_memory_slot *slot, gfn_t gfn); |
32cad84f | 460 | void kvm_release_pfn_dirty(pfn_t pfn); |
35149e21 AL |
461 | void kvm_release_pfn_clean(pfn_t pfn); |
462 | void kvm_set_pfn_dirty(pfn_t pfn); | |
463 | void kvm_set_pfn_accessed(pfn_t pfn); | |
464 | void kvm_get_pfn(pfn_t pfn); | |
465 | ||
195aefde IE |
466 | int kvm_read_guest_page(struct kvm *kvm, gfn_t gfn, void *data, int offset, |
467 | int len); | |
7ec54588 MT |
468 | int kvm_read_guest_atomic(struct kvm *kvm, gpa_t gpa, void *data, |
469 | unsigned long len); | |
195aefde | 470 | int kvm_read_guest(struct kvm *kvm, gpa_t gpa, void *data, unsigned long len); |
e03b644f GN |
471 | int kvm_read_guest_cached(struct kvm *kvm, struct gfn_to_hva_cache *ghc, |
472 | void *data, unsigned long len); | |
195aefde IE |
473 | int kvm_write_guest_page(struct kvm *kvm, gfn_t gfn, const void *data, |
474 | int offset, int len); | |
475 | int kvm_write_guest(struct kvm *kvm, gpa_t gpa, const void *data, | |
476 | unsigned long len); | |
49c7754c GN |
477 | int kvm_write_guest_cached(struct kvm *kvm, struct gfn_to_hva_cache *ghc, |
478 | void *data, unsigned long len); | |
479 | int kvm_gfn_to_hva_cache_init(struct kvm *kvm, struct gfn_to_hva_cache *ghc, | |
480 | gpa_t gpa); | |
195aefde IE |
481 | int kvm_clear_guest_page(struct kvm *kvm, gfn_t gfn, int offset, int len); |
482 | int kvm_clear_guest(struct kvm *kvm, gpa_t gpa, unsigned long len); | |
6aa8b732 | 483 | struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn); |
e0d62c7f | 484 | int kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn); |
8f0b1ab6 | 485 | unsigned long kvm_host_page_size(struct kvm *kvm, gfn_t gfn); |
6aa8b732 | 486 | void mark_page_dirty(struct kvm *kvm, gfn_t gfn); |
49c7754c GN |
487 | void mark_page_dirty_in_slot(struct kvm *kvm, struct kvm_memory_slot *memslot, |
488 | gfn_t gfn); | |
6aa8b732 | 489 | |
8776e519 | 490 | void kvm_vcpu_block(struct kvm_vcpu *vcpu); |
b6d33834 | 491 | void kvm_vcpu_kick(struct kvm_vcpu *vcpu); |
41628d33 | 492 | bool kvm_vcpu_yield_to(struct kvm_vcpu *target); |
d255f4f2 | 493 | void kvm_vcpu_on_spin(struct kvm_vcpu *vcpu); |
6aa8b732 | 494 | void kvm_resched(struct kvm_vcpu *vcpu); |
7702fd1f AK |
495 | void kvm_load_guest_fpu(struct kvm_vcpu *vcpu); |
496 | void kvm_put_guest_fpu(struct kvm_vcpu *vcpu); | |
a4ee1ca4 | 497 | |
d9e368d6 | 498 | void kvm_flush_remote_tlbs(struct kvm *kvm); |
2e53d63a | 499 | void kvm_reload_remote_mmus(struct kvm *kvm); |
6aa8b732 | 500 | |
043405e1 CO |
501 | long kvm_arch_dev_ioctl(struct file *filp, |
502 | unsigned int ioctl, unsigned long arg); | |
313a3dc7 CO |
503 | long kvm_arch_vcpu_ioctl(struct file *filp, |
504 | unsigned int ioctl, unsigned long arg); | |
5b1c1493 | 505 | int kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf); |
018d00d2 ZX |
506 | |
507 | int kvm_dev_ioctl_check_extension(long ext); | |
508 | ||
5bb064dc ZX |
509 | int kvm_get_dirty_log(struct kvm *kvm, |
510 | struct kvm_dirty_log *log, int *is_dirty); | |
511 | int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, | |
512 | struct kvm_dirty_log *log); | |
513 | ||
1fe779f8 CO |
514 | int kvm_vm_ioctl_set_memory_region(struct kvm *kvm, |
515 | struct | |
516 | kvm_userspace_memory_region *mem, | |
517 | int user_alloc); | |
23d43cf9 | 518 | int kvm_vm_ioctl_irq_line(struct kvm *kvm, struct kvm_irq_level *irq_level); |
1fe779f8 CO |
519 | long kvm_arch_vm_ioctl(struct file *filp, |
520 | unsigned int ioctl, unsigned long arg); | |
313a3dc7 | 521 | |
d0752060 HB |
522 | int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu); |
523 | int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu); | |
524 | ||
8b006791 ZX |
525 | int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu, |
526 | struct kvm_translation *tr); | |
527 | ||
b6c7a5dc HB |
528 | int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs); |
529 | int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs); | |
530 | int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu, | |
531 | struct kvm_sregs *sregs); | |
532 | int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu, | |
533 | struct kvm_sregs *sregs); | |
62d9f0db MT |
534 | int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu, |
535 | struct kvm_mp_state *mp_state); | |
536 | int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, | |
537 | struct kvm_mp_state *mp_state); | |
d0bfb940 JK |
538 | int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu, |
539 | struct kvm_guest_debug *dbg); | |
b6c7a5dc HB |
540 | int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run); |
541 | ||
f8c16bba ZX |
542 | int kvm_arch_init(void *opaque); |
543 | void kvm_arch_exit(void); | |
043405e1 | 544 | |
e9b11c17 ZX |
545 | int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu); |
546 | void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu); | |
547 | ||
548 | void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu); | |
549 | void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu); | |
550 | void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu); | |
551 | struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id); | |
26e5215f | 552 | int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu); |
d40ccc62 | 553 | void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu); |
e9b11c17 ZX |
554 | |
555 | int kvm_arch_vcpu_reset(struct kvm_vcpu *vcpu); | |
10474ae8 | 556 | int kvm_arch_hardware_enable(void *garbage); |
e9b11c17 ZX |
557 | void kvm_arch_hardware_disable(void *garbage); |
558 | int kvm_arch_hardware_setup(void); | |
559 | void kvm_arch_hardware_unsetup(void); | |
560 | void kvm_arch_check_processor_compat(void *rtn); | |
1d737c8a | 561 | int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu); |
b6d33834 | 562 | int kvm_arch_vcpu_should_kick(struct kvm_vcpu *vcpu); |
e9b11c17 | 563 | |
d19a9cd2 ZX |
564 | void kvm_free_physmem(struct kvm *kvm); |
565 | ||
c1a7b32a TY |
566 | void *kvm_kvzalloc(unsigned long size); |
567 | void kvm_kvfree(const void *addr); | |
568 | ||
d89f5eff JK |
569 | #ifndef __KVM_HAVE_ARCH_VM_ALLOC |
570 | static inline struct kvm *kvm_arch_alloc_vm(void) | |
571 | { | |
572 | return kzalloc(sizeof(struct kvm), GFP_KERNEL); | |
573 | } | |
574 | ||
575 | static inline void kvm_arch_free_vm(struct kvm *kvm) | |
576 | { | |
577 | kfree(kvm); | |
578 | } | |
579 | #endif | |
580 | ||
b6d33834 CD |
581 | static inline wait_queue_head_t *kvm_arch_vcpu_wq(struct kvm_vcpu *vcpu) |
582 | { | |
2246f8b5 AG |
583 | #ifdef __KVM_HAVE_ARCH_WQP |
584 | return vcpu->arch.wqp; | |
585 | #else | |
b6d33834 | 586 | return &vcpu->wq; |
b6d33834 | 587 | #endif |
2246f8b5 | 588 | } |
b6d33834 | 589 | |
e08b9637 | 590 | int kvm_arch_init_vm(struct kvm *kvm, unsigned long type); |
d19a9cd2 | 591 | void kvm_arch_destroy_vm(struct kvm *kvm); |
8a98f664 | 592 | void kvm_free_all_assigned_devices(struct kvm *kvm); |
ad8ba2cd | 593 | void kvm_arch_sync_events(struct kvm *kvm); |
e9b11c17 | 594 | |
3d80840d | 595 | int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu); |
5736199a | 596 | void kvm_vcpu_kick(struct kvm_vcpu *vcpu); |
682c59a3 | 597 | |
a2766325 | 598 | bool kvm_is_mmio_pfn(pfn_t pfn); |
c77fb9dc | 599 | |
62c476c7 BAY |
600 | struct kvm_irq_ack_notifier { |
601 | struct hlist_node link; | |
602 | unsigned gsi; | |
603 | void (*irq_acked)(struct kvm_irq_ack_notifier *kian); | |
604 | }; | |
605 | ||
606 | struct kvm_assigned_dev_kernel { | |
607 | struct kvm_irq_ack_notifier ack_notifier; | |
62c476c7 BAY |
608 | struct list_head list; |
609 | int assigned_dev_id; | |
ab9f4ecb | 610 | int host_segnr; |
62c476c7 BAY |
611 | int host_busnr; |
612 | int host_devfn; | |
c1e01514 | 613 | unsigned int entries_nr; |
62c476c7 | 614 | int host_irq; |
defaf158 | 615 | bool host_irq_disabled; |
07700a94 | 616 | bool pci_2_3; |
c1e01514 | 617 | struct msix_entry *host_msix_entries; |
62c476c7 | 618 | int guest_irq; |
0645211c | 619 | struct msix_entry *guest_msix_entries; |
4f906c19 | 620 | unsigned long irq_requested_type; |
5550af4d | 621 | int irq_source_id; |
b653574a | 622 | int flags; |
62c476c7 BAY |
623 | struct pci_dev *dev; |
624 | struct kvm *kvm; | |
0645211c | 625 | spinlock_t intx_lock; |
cf9eeac4 | 626 | spinlock_t intx_mask_lock; |
1e001d49 | 627 | char irq_name[32]; |
f8fcfd77 | 628 | struct pci_saved_state *pci_saved_state; |
62c476c7 | 629 | }; |
75858a84 AK |
630 | |
631 | struct kvm_irq_mask_notifier { | |
632 | void (*func)(struct kvm_irq_mask_notifier *kimn, bool masked); | |
633 | int irq; | |
634 | struct hlist_node link; | |
635 | }; | |
636 | ||
637 | void kvm_register_irq_mask_notifier(struct kvm *kvm, int irq, | |
638 | struct kvm_irq_mask_notifier *kimn); | |
639 | void kvm_unregister_irq_mask_notifier(struct kvm *kvm, int irq, | |
640 | struct kvm_irq_mask_notifier *kimn); | |
4a994358 GN |
641 | void kvm_fire_mask_notifiers(struct kvm *kvm, unsigned irqchip, unsigned pin, |
642 | bool mask); | |
75858a84 | 643 | |
46e624b9 GN |
644 | #ifdef __KVM_HAVE_IOAPIC |
645 | void kvm_get_intr_delivery_bitmask(struct kvm_ioapic *ioapic, | |
646 | union kvm_ioapic_redirect_entry *entry, | |
647 | unsigned long *deliver_bitmask); | |
648 | #endif | |
649 | int kvm_set_irq(struct kvm *kvm, int irq_source_id, u32 irq, int level); | |
bd2b53b2 MT |
650 | int kvm_set_msi(struct kvm_kernel_irq_routing_entry *irq_entry, struct kvm *kvm, |
651 | int irq_source_id, int level); | |
44882eed | 652 | void kvm_notify_acked_irq(struct kvm *kvm, unsigned irqchip, unsigned pin); |
3de42dc0 XZ |
653 | void kvm_register_irq_ack_notifier(struct kvm *kvm, |
654 | struct kvm_irq_ack_notifier *kian); | |
fa40a821 MT |
655 | void kvm_unregister_irq_ack_notifier(struct kvm *kvm, |
656 | struct kvm_irq_ack_notifier *kian); | |
5550af4d SY |
657 | int kvm_request_irq_source_id(struct kvm *kvm); |
658 | void kvm_free_irq_source_id(struct kvm *kvm, int irq_source_id); | |
62c476c7 | 659 | |
522c68c4 SY |
660 | /* For vcpu->arch.iommu_flags */ |
661 | #define KVM_IOMMU_CACHE_COHERENCY 0x1 | |
662 | ||
19de40a8 | 663 | #ifdef CONFIG_IOMMU_API |
3ad26d81 | 664 | int kvm_iommu_map_pages(struct kvm *kvm, struct kvm_memory_slot *slot); |
32f6daad | 665 | void kvm_iommu_unmap_pages(struct kvm *kvm, struct kvm_memory_slot *slot); |
260782bc | 666 | int kvm_iommu_map_guest(struct kvm *kvm); |
62c476c7 | 667 | int kvm_iommu_unmap_guest(struct kvm *kvm); |
260782bc WH |
668 | int kvm_assign_device(struct kvm *kvm, |
669 | struct kvm_assigned_dev_kernel *assigned_dev); | |
0a920356 WH |
670 | int kvm_deassign_device(struct kvm *kvm, |
671 | struct kvm_assigned_dev_kernel *assigned_dev); | |
19de40a8 | 672 | #else /* CONFIG_IOMMU_API */ |
62c476c7 | 673 | static inline int kvm_iommu_map_pages(struct kvm *kvm, |
d7a79b6c | 674 | struct kvm_memory_slot *slot) |
62c476c7 BAY |
675 | { |
676 | return 0; | |
677 | } | |
678 | ||
32f6daad AW |
679 | static inline void kvm_iommu_unmap_pages(struct kvm *kvm, |
680 | struct kvm_memory_slot *slot) | |
681 | { | |
682 | } | |
683 | ||
260782bc | 684 | static inline int kvm_iommu_map_guest(struct kvm *kvm) |
62c476c7 BAY |
685 | { |
686 | return -ENODEV; | |
687 | } | |
688 | ||
689 | static inline int kvm_iommu_unmap_guest(struct kvm *kvm) | |
690 | { | |
691 | return 0; | |
692 | } | |
260782bc WH |
693 | |
694 | static inline int kvm_assign_device(struct kvm *kvm, | |
695 | struct kvm_assigned_dev_kernel *assigned_dev) | |
696 | { | |
697 | return 0; | |
698 | } | |
0a920356 WH |
699 | |
700 | static inline int kvm_deassign_device(struct kvm *kvm, | |
701 | struct kvm_assigned_dev_kernel *assigned_dev) | |
702 | { | |
703 | return 0; | |
704 | } | |
19de40a8 | 705 | #endif /* CONFIG_IOMMU_API */ |
62c476c7 | 706 | |
d172fcd3 LV |
707 | static inline void kvm_guest_enter(void) |
708 | { | |
8fa22068 | 709 | BUG_ON(preemptible()); |
e56a7a28 | 710 | account_system_vtime(current); |
d172fcd3 | 711 | current->flags |= PF_VCPU; |
8fa22068 GN |
712 | /* KVM does not hold any references to rcu protected data when it |
713 | * switches CPU into a guest mode. In fact switching to a guest mode | |
714 | * is very similar to exiting to userspase from rcu point of view. In | |
715 | * addition CPU may stay in a guest mode for quite a long time (up to | |
716 | * one time slice). Lets treat guest mode as quiescent state, just like | |
717 | * we do with user-mode execution. | |
718 | */ | |
719 | rcu_virt_note_context_switch(smp_processor_id()); | |
d172fcd3 LV |
720 | } |
721 | ||
722 | static inline void kvm_guest_exit(void) | |
723 | { | |
e56a7a28 | 724 | account_system_vtime(current); |
d172fcd3 LV |
725 | current->flags &= ~PF_VCPU; |
726 | } | |
727 | ||
9d4cba7f PM |
728 | /* |
729 | * search_memslots() and __gfn_to_memslot() are here because they are | |
730 | * used in non-modular code in arch/powerpc/kvm/book3s_hv_rm_mmu.c. | |
731 | * gfn_to_memslot() itself isn't here as an inline because that would | |
732 | * bloat other code too much. | |
733 | */ | |
734 | static inline struct kvm_memory_slot * | |
735 | search_memslots(struct kvm_memslots *slots, gfn_t gfn) | |
736 | { | |
737 | struct kvm_memory_slot *memslot; | |
738 | ||
739 | kvm_for_each_memslot(memslot, slots) | |
740 | if (gfn >= memslot->base_gfn && | |
741 | gfn < memslot->base_gfn + memslot->npages) | |
742 | return memslot; | |
743 | ||
744 | return NULL; | |
745 | } | |
746 | ||
747 | static inline struct kvm_memory_slot * | |
748 | __gfn_to_memslot(struct kvm_memslots *slots, gfn_t gfn) | |
749 | { | |
750 | return search_memslots(slots, gfn); | |
751 | } | |
752 | ||
0ee8dcb8 XG |
753 | static inline int memslot_id(struct kvm *kvm, gfn_t gfn) |
754 | { | |
755 | return gfn_to_memslot(kvm, gfn)->id; | |
756 | } | |
757 | ||
fb03cb6f TY |
758 | static inline gfn_t gfn_to_index(gfn_t gfn, gfn_t base_gfn, int level) |
759 | { | |
760 | /* KVM_HPAGE_GFN_SHIFT(PT_PAGE_TABLE_LEVEL) must be 0. */ | |
761 | return (gfn >> KVM_HPAGE_GFN_SHIFT(level)) - | |
762 | (base_gfn >> KVM_HPAGE_GFN_SHIFT(level)); | |
763 | } | |
764 | ||
d19a748b TY |
765 | static inline gfn_t |
766 | hva_to_gfn_memslot(unsigned long hva, struct kvm_memory_slot *slot) | |
767 | { | |
768 | gfn_t gfn_offset = (hva - slot->userspace_addr) >> PAGE_SHIFT; | |
769 | ||
770 | return slot->base_gfn + gfn_offset; | |
771 | } | |
772 | ||
887c08ac XG |
773 | static inline unsigned long gfn_to_hva_memslot(struct kvm_memory_slot *slot, |
774 | gfn_t gfn) | |
775 | { | |
776 | return slot->userspace_addr + (gfn - slot->base_gfn) * PAGE_SIZE; | |
777 | } | |
778 | ||
1755fbcc AK |
779 | static inline gpa_t gfn_to_gpa(gfn_t gfn) |
780 | { | |
781 | return (gpa_t)gfn << PAGE_SHIFT; | |
782 | } | |
6aa8b732 | 783 | |
c30a358d JR |
784 | static inline gfn_t gpa_to_gfn(gpa_t gpa) |
785 | { | |
786 | return (gfn_t)(gpa >> PAGE_SHIFT); | |
787 | } | |
788 | ||
62c476c7 BAY |
789 | static inline hpa_t pfn_to_hpa(pfn_t pfn) |
790 | { | |
791 | return (hpa_t)pfn << PAGE_SHIFT; | |
792 | } | |
793 | ||
2f599714 | 794 | static inline void kvm_migrate_timers(struct kvm_vcpu *vcpu) |
2f52d58c AK |
795 | { |
796 | set_bit(KVM_REQ_MIGRATE_TIMER, &vcpu->requests); | |
797 | } | |
798 | ||
ba1389b7 AK |
799 | enum kvm_stat_kind { |
800 | KVM_STAT_VM, | |
801 | KVM_STAT_VCPU, | |
802 | }; | |
803 | ||
417bc304 HB |
804 | struct kvm_stats_debugfs_item { |
805 | const char *name; | |
806 | int offset; | |
ba1389b7 | 807 | enum kvm_stat_kind kind; |
417bc304 HB |
808 | struct dentry *dentry; |
809 | }; | |
810 | extern struct kvm_stats_debugfs_item debugfs_entries[]; | |
76f7c879 | 811 | extern struct dentry *kvm_debugfs_dir; |
d4c9ff2d | 812 | |
36c1ed82 | 813 | #if defined(CONFIG_MMU_NOTIFIER) && defined(KVM_ARCH_WANT_MMU_NOTIFIER) |
e930bffe AA |
814 | static inline int mmu_notifier_retry(struct kvm_vcpu *vcpu, unsigned long mmu_seq) |
815 | { | |
816 | if (unlikely(vcpu->kvm->mmu_notifier_count)) | |
817 | return 1; | |
818 | /* | |
a355aa54 PM |
819 | * Ensure the read of mmu_notifier_count happens before the read |
820 | * of mmu_notifier_seq. This interacts with the smp_wmb() in | |
821 | * mmu_notifier_invalidate_range_end to make sure that the caller | |
822 | * either sees the old (non-zero) value of mmu_notifier_count or | |
823 | * the new (incremented) value of mmu_notifier_seq. | |
824 | * PowerPC Book3s HV KVM calls this under a per-page lock | |
825 | * rather than under kvm->mmu_lock, for scalability, so | |
826 | * can't rely on kvm->mmu_lock to keep things ordered. | |
e930bffe | 827 | */ |
a355aa54 | 828 | smp_rmb(); |
e930bffe AA |
829 | if (vcpu->kvm->mmu_notifier_seq != mmu_seq) |
830 | return 1; | |
831 | return 0; | |
832 | } | |
833 | #endif | |
834 | ||
9900b4b4 | 835 | #ifdef KVM_CAP_IRQ_ROUTING |
399ec807 AK |
836 | |
837 | #define KVM_MAX_IRQ_ROUTES 1024 | |
838 | ||
839 | int kvm_setup_default_irq_routing(struct kvm *kvm); | |
840 | int kvm_set_irq_routing(struct kvm *kvm, | |
841 | const struct kvm_irq_routing_entry *entries, | |
842 | unsigned nr, | |
843 | unsigned flags); | |
844 | void kvm_free_irq_routing(struct kvm *kvm); | |
845 | ||
07975ad3 JK |
846 | int kvm_send_userspace_msi(struct kvm *kvm, struct kvm_msi *msi); |
847 | ||
399ec807 AK |
848 | #else |
849 | ||
850 | static inline void kvm_free_irq_routing(struct kvm *kvm) {} | |
851 | ||
852 | #endif | |
853 | ||
721eecbf GH |
854 | #ifdef CONFIG_HAVE_KVM_EVENTFD |
855 | ||
d34e6b17 | 856 | void kvm_eventfd_init(struct kvm *kvm); |
d4db2935 | 857 | int kvm_irqfd(struct kvm *kvm, struct kvm_irqfd *args); |
721eecbf | 858 | void kvm_irqfd_release(struct kvm *kvm); |
bd2b53b2 | 859 | void kvm_irq_routing_update(struct kvm *, struct kvm_irq_routing_table *); |
d34e6b17 | 860 | int kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args); |
721eecbf GH |
861 | |
862 | #else | |
863 | ||
d34e6b17 | 864 | static inline void kvm_eventfd_init(struct kvm *kvm) {} |
bd2b53b2 | 865 | |
d4db2935 | 866 | static inline int kvm_irqfd(struct kvm *kvm, struct kvm_irqfd *args) |
721eecbf GH |
867 | { |
868 | return -EINVAL; | |
869 | } | |
870 | ||
871 | static inline void kvm_irqfd_release(struct kvm *kvm) {} | |
bd2b53b2 | 872 | |
27923eb1 | 873 | #ifdef CONFIG_HAVE_KVM_IRQCHIP |
bd2b53b2 MT |
874 | static inline void kvm_irq_routing_update(struct kvm *kvm, |
875 | struct kvm_irq_routing_table *irq_rt) | |
876 | { | |
877 | rcu_assign_pointer(kvm->irq_routing, irq_rt); | |
878 | } | |
27923eb1 | 879 | #endif |
bd2b53b2 | 880 | |
d34e6b17 GH |
881 | static inline int kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args) |
882 | { | |
883 | return -ENOSYS; | |
884 | } | |
721eecbf GH |
885 | |
886 | #endif /* CONFIG_HAVE_KVM_EVENTFD */ | |
887 | ||
73880c80 | 888 | #ifdef CONFIG_KVM_APIC_ARCHITECTURE |
c5af89b6 GN |
889 | static inline bool kvm_vcpu_is_bsp(struct kvm_vcpu *vcpu) |
890 | { | |
d3efc8ef | 891 | return vcpu->kvm->bsp_vcpu_id == vcpu->vcpu_id; |
c5af89b6 | 892 | } |
3e515705 AK |
893 | |
894 | bool kvm_vcpu_compatible(struct kvm_vcpu *vcpu); | |
895 | ||
896 | #else | |
897 | ||
898 | static inline bool kvm_vcpu_compatible(struct kvm_vcpu *vcpu) { return true; } | |
899 | ||
6aa8b732 | 900 | #endif |
bfd99ff5 AK |
901 | |
902 | #ifdef __KVM_HAVE_DEVICE_ASSIGNMENT | |
903 | ||
904 | long kvm_vm_ioctl_assigned_device(struct kvm *kvm, unsigned ioctl, | |
905 | unsigned long arg); | |
906 | ||
907 | #else | |
908 | ||
909 | static inline long kvm_vm_ioctl_assigned_device(struct kvm *kvm, unsigned ioctl, | |
910 | unsigned long arg) | |
911 | { | |
912 | return -ENOTTY; | |
913 | } | |
914 | ||
73880c80 | 915 | #endif |
bfd99ff5 | 916 | |
a8eeb04a AK |
917 | static inline void kvm_make_request(int req, struct kvm_vcpu *vcpu) |
918 | { | |
919 | set_bit(req, &vcpu->requests); | |
920 | } | |
921 | ||
a8eeb04a AK |
922 | static inline bool kvm_check_request(int req, struct kvm_vcpu *vcpu) |
923 | { | |
0719837c AK |
924 | if (test_bit(req, &vcpu->requests)) { |
925 | clear_bit(req, &vcpu->requests); | |
926 | return true; | |
927 | } else { | |
928 | return false; | |
929 | } | |
a8eeb04a AK |
930 | } |
931 | ||
4c088493 R |
932 | #ifdef CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT |
933 | ||
934 | static inline void kvm_vcpu_set_in_spin_loop(struct kvm_vcpu *vcpu, bool val) | |
935 | { | |
936 | vcpu->spin_loop.in_spin_loop = val; | |
937 | } | |
938 | static inline void kvm_vcpu_set_dy_eligible(struct kvm_vcpu *vcpu, bool val) | |
939 | { | |
940 | vcpu->spin_loop.dy_eligible = val; | |
941 | } | |
942 | ||
943 | #else /* !CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT */ | |
944 | ||
945 | static inline void kvm_vcpu_set_in_spin_loop(struct kvm_vcpu *vcpu, bool val) | |
946 | { | |
947 | } | |
948 | ||
949 | static inline void kvm_vcpu_set_dy_eligible(struct kvm_vcpu *vcpu, bool val) | |
950 | { | |
951 | } | |
952 | ||
06e48c51 R |
953 | static inline bool kvm_vcpu_eligible_for_directed_yield(struct kvm_vcpu *vcpu) |
954 | { | |
955 | return true; | |
956 | } | |
957 | ||
4c088493 | 958 | #endif /* CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT */ |
bfd99ff5 AK |
959 | #endif |
960 |