Commit | Line | Data |
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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> |
e8edc6e0 | 24 | #include <asm/signal.h> |
6aa8b732 | 25 | |
6aa8b732 | 26 | #include <linux/kvm.h> |
102d8325 | 27 | #include <linux/kvm_para.h> |
6aa8b732 | 28 | |
edf88417 | 29 | #include <linux/kvm_types.h> |
d77a39d9 | 30 | |
edf88417 | 31 | #include <asm/kvm_host.h> |
d657a98e | 32 | |
cef4dea0 AK |
33 | #ifndef KVM_MMIO_SIZE |
34 | #define KVM_MMIO_SIZE 8 | |
35 | #endif | |
36 | ||
f78146b0 AK |
37 | /* |
38 | * If we support unaligned MMIO, at most one fragment will be split into two: | |
39 | */ | |
40 | #ifdef KVM_UNALIGNED_MMIO | |
41 | # define KVM_EXTRA_MMIO_FRAGMENTS 1 | |
42 | #else | |
43 | # define KVM_EXTRA_MMIO_FRAGMENTS 0 | |
44 | #endif | |
45 | ||
46 | #define KVM_USER_MMIO_SIZE 8 | |
47 | ||
48 | #define KVM_MAX_MMIO_FRAGMENTS \ | |
49 | (KVM_MMIO_SIZE / KVM_USER_MMIO_SIZE + KVM_EXTRA_MMIO_FRAGMENTS) | |
50 | ||
d9e368d6 AK |
51 | /* |
52 | * vcpu->requests bit members | |
53 | */ | |
3176bc3e | 54 | #define KVM_REQ_TLB_FLUSH 0 |
2f52d58c | 55 | #define KVM_REQ_MIGRATE_TIMER 1 |
b209749f | 56 | #define KVM_REQ_REPORT_TPR_ACCESS 2 |
2e53d63a | 57 | #define KVM_REQ_MMU_RELOAD 3 |
71c4dfaf | 58 | #define KVM_REQ_TRIPLE_FAULT 4 |
06e05645 | 59 | #define KVM_REQ_PENDING_TIMER 5 |
d7690175 | 60 | #define KVM_REQ_UNHALT 6 |
4731d4c7 | 61 | #define KVM_REQ_MMU_SYNC 7 |
34c238a1 | 62 | #define KVM_REQ_CLOCK_UPDATE 8 |
32f88400 | 63 | #define KVM_REQ_KICK 9 |
02daab21 | 64 | #define KVM_REQ_DEACTIVATE_FPU 10 |
3842d135 | 65 | #define KVM_REQ_EVENT 11 |
af585b92 | 66 | #define KVM_REQ_APF_HALT 12 |
c9aaa895 | 67 | #define KVM_REQ_STEAL_UPDATE 13 |
7460fb4a | 68 | #define KVM_REQ_NMI 14 |
d6185f20 | 69 | #define KVM_REQ_IMMEDIATE_EXIT 15 |
f5132b01 GN |
70 | #define KVM_REQ_PMU 16 |
71 | #define KVM_REQ_PMI 17 | |
6aa8b732 | 72 | |
5550af4d SY |
73 | #define KVM_USERSPACE_IRQ_SOURCE_ID 0 |
74 | ||
6c474694 | 75 | struct kvm; |
6aa8b732 | 76 | struct kvm_vcpu; |
c16f862d | 77 | extern struct kmem_cache *kvm_vcpu_cache; |
6aa8b732 | 78 | |
743eeb0b SL |
79 | struct kvm_io_range { |
80 | gpa_t addr; | |
81 | int len; | |
82 | struct kvm_io_device *dev; | |
83 | }; | |
84 | ||
786a9f88 | 85 | #define NR_IOBUS_DEVS 1000 |
a1300716 | 86 | |
2eeb2e94 GH |
87 | struct kvm_io_bus { |
88 | int dev_count; | |
a1300716 | 89 | struct kvm_io_range range[]; |
2eeb2e94 GH |
90 | }; |
91 | ||
e93f8a0f MT |
92 | enum kvm_bus { |
93 | KVM_MMIO_BUS, | |
94 | KVM_PIO_BUS, | |
95 | KVM_NR_BUSES | |
96 | }; | |
97 | ||
98 | int kvm_io_bus_write(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr, | |
99 | int len, const void *val); | |
100 | int kvm_io_bus_read(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr, int len, | |
bda9020e | 101 | void *val); |
743eeb0b SL |
102 | int kvm_io_bus_register_dev(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr, |
103 | int len, struct kvm_io_device *dev); | |
e93f8a0f MT |
104 | int kvm_io_bus_unregister_dev(struct kvm *kvm, enum kvm_bus bus_idx, |
105 | struct kvm_io_device *dev); | |
2eeb2e94 | 106 | |
af585b92 GN |
107 | #ifdef CONFIG_KVM_ASYNC_PF |
108 | struct kvm_async_pf { | |
109 | struct work_struct work; | |
110 | struct list_head link; | |
111 | struct list_head queue; | |
112 | struct kvm_vcpu *vcpu; | |
113 | struct mm_struct *mm; | |
114 | gva_t gva; | |
115 | unsigned long addr; | |
116 | struct kvm_arch_async_pf arch; | |
117 | struct page *page; | |
118 | bool done; | |
119 | }; | |
120 | ||
121 | void kvm_clear_async_pf_completion_queue(struct kvm_vcpu *vcpu); | |
122 | void kvm_check_async_pf_completion(struct kvm_vcpu *vcpu); | |
123 | int kvm_setup_async_pf(struct kvm_vcpu *vcpu, gva_t gva, gfn_t gfn, | |
124 | struct kvm_arch_async_pf *arch); | |
344d9588 | 125 | int kvm_async_pf_wakeup_all(struct kvm_vcpu *vcpu); |
af585b92 GN |
126 | #endif |
127 | ||
6b7e2d09 XG |
128 | enum { |
129 | OUTSIDE_GUEST_MODE, | |
130 | IN_GUEST_MODE, | |
131 | EXITING_GUEST_MODE | |
132 | }; | |
133 | ||
f78146b0 AK |
134 | /* |
135 | * Sometimes a large or cross-page mmio needs to be broken up into separate | |
136 | * exits for userspace servicing. | |
137 | */ | |
138 | struct kvm_mmio_fragment { | |
139 | gpa_t gpa; | |
140 | void *data; | |
141 | unsigned len; | |
142 | }; | |
143 | ||
d17fbbf7 ZX |
144 | struct kvm_vcpu { |
145 | struct kvm *kvm; | |
31bb117e | 146 | #ifdef CONFIG_PREEMPT_NOTIFIERS |
d17fbbf7 | 147 | struct preempt_notifier preempt_notifier; |
31bb117e | 148 | #endif |
6b7e2d09 | 149 | int cpu; |
d17fbbf7 | 150 | int vcpu_id; |
6b7e2d09 XG |
151 | int srcu_idx; |
152 | int mode; | |
d17fbbf7 | 153 | unsigned long requests; |
d0bfb940 | 154 | unsigned long guest_debug; |
6b7e2d09 XG |
155 | |
156 | struct mutex mutex; | |
157 | struct kvm_run *run; | |
f656ce01 | 158 | |
d17fbbf7 | 159 | int fpu_active; |
2acf923e | 160 | int guest_fpu_loaded, guest_xcr0_loaded; |
d17fbbf7 | 161 | wait_queue_head_t wq; |
34bb10b7 | 162 | struct pid *pid; |
d17fbbf7 ZX |
163 | int sigset_active; |
164 | sigset_t sigset; | |
165 | struct kvm_vcpu_stat stat; | |
166 | ||
34c16eec | 167 | #ifdef CONFIG_HAS_IOMEM |
d17fbbf7 ZX |
168 | int mmio_needed; |
169 | int mmio_read_completed; | |
170 | int mmio_is_write; | |
f78146b0 AK |
171 | int mmio_cur_fragment; |
172 | int mmio_nr_fragments; | |
173 | struct kvm_mmio_fragment mmio_fragments[KVM_MAX_MMIO_FRAGMENTS]; | |
34c16eec | 174 | #endif |
1165f5fe | 175 | |
af585b92 GN |
176 | #ifdef CONFIG_KVM_ASYNC_PF |
177 | struct { | |
178 | u32 queued; | |
179 | struct list_head queue; | |
180 | struct list_head done; | |
181 | spinlock_t lock; | |
182 | } async_pf; | |
183 | #endif | |
184 | ||
d657a98e ZX |
185 | struct kvm_vcpu_arch arch; |
186 | }; | |
187 | ||
6b7e2d09 XG |
188 | static inline int kvm_vcpu_exiting_guest_mode(struct kvm_vcpu *vcpu) |
189 | { | |
190 | return cmpxchg(&vcpu->mode, IN_GUEST_MODE, EXITING_GUEST_MODE); | |
191 | } | |
192 | ||
660c22c4 TY |
193 | /* |
194 | * Some of the bitops functions do not support too long bitmaps. | |
195 | * This number must be determined not to exceed such limits. | |
196 | */ | |
197 | #define KVM_MEM_MAX_NR_PAGES ((1UL << 31) - 1) | |
198 | ||
6aa8b732 AK |
199 | struct kvm_memory_slot { |
200 | gfn_t base_gfn; | |
201 | unsigned long npages; | |
202 | unsigned long flags; | |
290fc38d | 203 | unsigned long *rmap; |
6aa8b732 | 204 | unsigned long *dirty_bitmap; |
db3fe4eb | 205 | struct kvm_arch_memory_slot arch; |
8a7ae055 | 206 | unsigned long userspace_addr; |
80b14b5b | 207 | int user_alloc; |
e36d96f7 | 208 | int id; |
6aa8b732 AK |
209 | }; |
210 | ||
87bf6e7d TY |
211 | static inline unsigned long kvm_dirty_bitmap_bytes(struct kvm_memory_slot *memslot) |
212 | { | |
213 | return ALIGN(memslot->npages, BITS_PER_LONG) / 8; | |
214 | } | |
215 | ||
399ec807 AK |
216 | struct kvm_kernel_irq_routing_entry { |
217 | u32 gsi; | |
5116d8f6 | 218 | u32 type; |
4925663a | 219 | int (*set)(struct kvm_kernel_irq_routing_entry *e, |
1a6e4a8c | 220 | struct kvm *kvm, int irq_source_id, int level); |
399ec807 AK |
221 | union { |
222 | struct { | |
223 | unsigned irqchip; | |
224 | unsigned pin; | |
225 | } irqchip; | |
79950e10 | 226 | struct msi_msg msi; |
399ec807 | 227 | }; |
46e624b9 GN |
228 | struct hlist_node link; |
229 | }; | |
230 | ||
3e71f88b GN |
231 | #ifdef __KVM_HAVE_IOAPIC |
232 | ||
46e624b9 | 233 | struct kvm_irq_routing_table { |
3e71f88b | 234 | int chip[KVM_NR_IRQCHIPS][KVM_IOAPIC_NUM_PINS]; |
46e624b9 GN |
235 | struct kvm_kernel_irq_routing_entry *rt_entries; |
236 | u32 nr_rt_entries; | |
237 | /* | |
238 | * Array indexed by gsi. Each entry contains list of irq chips | |
239 | * the gsi is connected to. | |
240 | */ | |
241 | struct hlist_head map[0]; | |
399ec807 AK |
242 | }; |
243 | ||
3e71f88b GN |
244 | #else |
245 | ||
246 | struct kvm_irq_routing_table {}; | |
247 | ||
248 | #endif | |
249 | ||
93a5cef0 XG |
250 | #ifndef KVM_MEM_SLOTS_NUM |
251 | #define KVM_MEM_SLOTS_NUM (KVM_MEMORY_SLOTS + KVM_PRIVATE_MEM_SLOTS) | |
252 | #endif | |
253 | ||
bf3e05bc XG |
254 | /* |
255 | * Note: | |
256 | * memslots are not sorted by id anymore, please use id_to_memslot() | |
257 | * to get the memslot by its id. | |
258 | */ | |
46a26bf5 | 259 | struct kvm_memslots { |
49c7754c | 260 | u64 generation; |
93a5cef0 | 261 | struct kvm_memory_slot memslots[KVM_MEM_SLOTS_NUM]; |
f85e2cb5 XG |
262 | /* The mapping table from slot id to the index in memslots[]. */ |
263 | int id_to_index[KVM_MEM_SLOTS_NUM]; | |
46a26bf5 MT |
264 | }; |
265 | ||
6aa8b732 | 266 | struct kvm { |
aaee2c94 | 267 | spinlock_t mmu_lock; |
79fac95e | 268 | struct mutex slots_lock; |
6d4e4c4f | 269 | struct mm_struct *mm; /* userspace tied to this vm */ |
46a26bf5 | 270 | struct kvm_memslots *memslots; |
bc6678a3 | 271 | struct srcu_struct srcu; |
73880c80 GN |
272 | #ifdef CONFIG_KVM_APIC_ARCHITECTURE |
273 | u32 bsp_vcpu_id; | |
73880c80 | 274 | #endif |
fb3f0f51 | 275 | struct kvm_vcpu *vcpus[KVM_MAX_VCPUS]; |
73880c80 | 276 | atomic_t online_vcpus; |
217ece61 | 277 | int last_boosted_vcpu; |
133de902 | 278 | struct list_head vm_list; |
60eead79 | 279 | struct mutex lock; |
e93f8a0f | 280 | struct kvm_io_bus *buses[KVM_NR_BUSES]; |
721eecbf GH |
281 | #ifdef CONFIG_HAVE_KVM_EVENTFD |
282 | struct { | |
283 | spinlock_t lock; | |
284 | struct list_head items; | |
285 | } irqfds; | |
d34e6b17 | 286 | struct list_head ioeventfds; |
721eecbf | 287 | #endif |
ba1389b7 | 288 | struct kvm_vm_stat stat; |
d69fb81f | 289 | struct kvm_arch arch; |
d39f13b0 | 290 | atomic_t users_count; |
5f94c174 | 291 | #ifdef KVM_COALESCED_MMIO_PAGE_OFFSET |
5f94c174 | 292 | struct kvm_coalesced_mmio_ring *coalesced_mmio_ring; |
2b3c246a SL |
293 | spinlock_t ring_lock; |
294 | struct list_head coalesced_zones; | |
5f94c174 | 295 | #endif |
e930bffe | 296 | |
60eead79 | 297 | struct mutex irq_lock; |
75858a84 | 298 | #ifdef CONFIG_HAVE_KVM_IRQCHIP |
bd2b53b2 MT |
299 | /* |
300 | * Update side is protected by irq_lock and, | |
301 | * if configured, irqfds.lock. | |
302 | */ | |
4b6a2872 | 303 | struct kvm_irq_routing_table __rcu *irq_routing; |
75858a84 | 304 | struct hlist_head mask_notifier_list; |
136bdfee | 305 | struct hlist_head irq_ack_notifier_list; |
75858a84 AK |
306 | #endif |
307 | ||
e930bffe AA |
308 | #ifdef KVM_ARCH_WANT_MMU_NOTIFIER |
309 | struct mmu_notifier mmu_notifier; | |
310 | unsigned long mmu_notifier_seq; | |
311 | long mmu_notifier_count; | |
312 | #endif | |
5c663a15 | 313 | long tlbs_dirty; |
6aa8b732 AK |
314 | }; |
315 | ||
f0242478 RR |
316 | /* The guest did something we don't support. */ |
317 | #define pr_unimpl(vcpu, fmt, ...) \ | |
bd80158a JK |
318 | pr_err_ratelimited("kvm: %i: cpu%i " fmt, \ |
319 | current->tgid, (vcpu)->vcpu_id , ## __VA_ARGS__) | |
f0242478 | 320 | |
6aa8b732 AK |
321 | #define kvm_printf(kvm, fmt ...) printk(KERN_DEBUG fmt) |
322 | #define vcpu_printf(vcpu, fmt...) kvm_printf(vcpu->kvm, fmt) | |
323 | ||
988a2cae GN |
324 | static inline struct kvm_vcpu *kvm_get_vcpu(struct kvm *kvm, int i) |
325 | { | |
326 | smp_rmb(); | |
327 | return kvm->vcpus[i]; | |
328 | } | |
329 | ||
330 | #define kvm_for_each_vcpu(idx, vcpup, kvm) \ | |
b42fc3cb JM |
331 | for (idx = 0; \ |
332 | idx < atomic_read(&kvm->online_vcpus) && \ | |
333 | (vcpup = kvm_get_vcpu(kvm, idx)) != NULL; \ | |
334 | idx++) | |
988a2cae | 335 | |
be6ba0f0 XG |
336 | #define kvm_for_each_memslot(memslot, slots) \ |
337 | for (memslot = &slots->memslots[0]; \ | |
bf3e05bc XG |
338 | memslot < slots->memslots + KVM_MEM_SLOTS_NUM && memslot->npages;\ |
339 | memslot++) | |
be6ba0f0 | 340 | |
fb3f0f51 RR |
341 | int kvm_vcpu_init(struct kvm_vcpu *vcpu, struct kvm *kvm, unsigned id); |
342 | void kvm_vcpu_uninit(struct kvm_vcpu *vcpu); | |
343 | ||
313a3dc7 CO |
344 | void vcpu_load(struct kvm_vcpu *vcpu); |
345 | void vcpu_put(struct kvm_vcpu *vcpu); | |
346 | ||
0ee75bea | 347 | int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align, |
c16f862d | 348 | struct module *module); |
cb498ea2 | 349 | void kvm_exit(void); |
6aa8b732 | 350 | |
d39f13b0 IE |
351 | void kvm_get_kvm(struct kvm *kvm); |
352 | void kvm_put_kvm(struct kvm *kvm); | |
be593d62 | 353 | void update_memslots(struct kvm_memslots *slots, struct kvm_memory_slot *new); |
d39f13b0 | 354 | |
90d83dc3 LJ |
355 | static inline struct kvm_memslots *kvm_memslots(struct kvm *kvm) |
356 | { | |
357 | return rcu_dereference_check(kvm->memslots, | |
358 | srcu_read_lock_held(&kvm->srcu) | |
359 | || lockdep_is_held(&kvm->slots_lock)); | |
360 | } | |
361 | ||
28a37544 XG |
362 | static inline struct kvm_memory_slot * |
363 | id_to_memslot(struct kvm_memslots *slots, int id) | |
364 | { | |
f85e2cb5 XG |
365 | int index = slots->id_to_index[id]; |
366 | struct kvm_memory_slot *slot; | |
bf3e05bc | 367 | |
f85e2cb5 | 368 | slot = &slots->memslots[index]; |
bf3e05bc | 369 | |
f85e2cb5 XG |
370 | WARN_ON(slot->id != id); |
371 | return slot; | |
28a37544 XG |
372 | } |
373 | ||
6aa8b732 AK |
374 | #define HPA_MSB ((sizeof(hpa_t) * 8) - 1) |
375 | #define HPA_ERR_MASK ((hpa_t)1 << HPA_MSB) | |
376 | static inline int is_error_hpa(hpa_t hpa) { return hpa >> HPA_MSB; } | |
6aa8b732 | 377 | |
cea7bb21 | 378 | extern struct page *bad_page; |
fce92dce XG |
379 | extern struct page *fault_page; |
380 | ||
35149e21 | 381 | extern pfn_t bad_pfn; |
fce92dce | 382 | extern pfn_t fault_pfn; |
6aa8b732 | 383 | |
cea7bb21 | 384 | int is_error_page(struct page *page); |
35149e21 | 385 | int is_error_pfn(pfn_t pfn); |
bf998156 | 386 | int is_hwpoison_pfn(pfn_t pfn); |
edba23e5 | 387 | int is_fault_pfn(pfn_t pfn); |
fce92dce XG |
388 | int is_noslot_pfn(pfn_t pfn); |
389 | int is_invalid_pfn(pfn_t pfn); | |
f9d46eb0 | 390 | int kvm_is_error_hva(unsigned long addr); |
210c7c4d IE |
391 | int kvm_set_memory_region(struct kvm *kvm, |
392 | struct kvm_userspace_memory_region *mem, | |
393 | int user_alloc); | |
f78e0e2e SY |
394 | int __kvm_set_memory_region(struct kvm *kvm, |
395 | struct kvm_userspace_memory_region *mem, | |
396 | int user_alloc); | |
db3fe4eb TY |
397 | void kvm_arch_free_memslot(struct kvm_memory_slot *free, |
398 | struct kvm_memory_slot *dont); | |
399 | int kvm_arch_create_memslot(struct kvm_memory_slot *slot, unsigned long npages); | |
f7784b8e MT |
400 | int kvm_arch_prepare_memory_region(struct kvm *kvm, |
401 | struct kvm_memory_slot *memslot, | |
402 | struct kvm_memory_slot old, | |
403 | struct kvm_userspace_memory_region *mem, | |
404 | int user_alloc); | |
405 | void kvm_arch_commit_memory_region(struct kvm *kvm, | |
0de10343 ZX |
406 | struct kvm_userspace_memory_region *mem, |
407 | struct kvm_memory_slot old, | |
408 | int user_alloc); | |
db3fe4eb | 409 | bool kvm_largepages_enabled(void); |
54dee993 | 410 | void kvm_disable_largepages(void); |
34d4cb8f | 411 | void kvm_arch_flush_shadow(struct kvm *kvm); |
a983fb23 | 412 | |
48987781 XG |
413 | int gfn_to_page_many_atomic(struct kvm *kvm, gfn_t gfn, struct page **pages, |
414 | int nr_pages); | |
415 | ||
954bbbc2 | 416 | struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn); |
05da4558 | 417 | unsigned long gfn_to_hva(struct kvm *kvm, gfn_t gfn); |
b4231d61 IE |
418 | void kvm_release_page_clean(struct page *page); |
419 | void kvm_release_page_dirty(struct page *page); | |
35149e21 AL |
420 | void kvm_set_page_dirty(struct page *page); |
421 | void kvm_set_page_accessed(struct page *page); | |
422 | ||
887c08ac | 423 | pfn_t hva_to_pfn_atomic(struct kvm *kvm, unsigned long addr); |
365fb3fd | 424 | pfn_t gfn_to_pfn_atomic(struct kvm *kvm, gfn_t gfn); |
612819c3 MT |
425 | pfn_t gfn_to_pfn_async(struct kvm *kvm, gfn_t gfn, bool *async, |
426 | bool write_fault, bool *writable); | |
35149e21 | 427 | pfn_t gfn_to_pfn(struct kvm *kvm, gfn_t gfn); |
612819c3 MT |
428 | pfn_t gfn_to_pfn_prot(struct kvm *kvm, gfn_t gfn, bool write_fault, |
429 | bool *writable); | |
506f0d6f MT |
430 | pfn_t gfn_to_pfn_memslot(struct kvm *kvm, |
431 | struct kvm_memory_slot *slot, gfn_t gfn); | |
35149e21 AL |
432 | void kvm_release_pfn_dirty(pfn_t); |
433 | void kvm_release_pfn_clean(pfn_t pfn); | |
434 | void kvm_set_pfn_dirty(pfn_t pfn); | |
435 | void kvm_set_pfn_accessed(pfn_t pfn); | |
436 | void kvm_get_pfn(pfn_t pfn); | |
437 | ||
195aefde IE |
438 | int kvm_read_guest_page(struct kvm *kvm, gfn_t gfn, void *data, int offset, |
439 | int len); | |
7ec54588 MT |
440 | int kvm_read_guest_atomic(struct kvm *kvm, gpa_t gpa, void *data, |
441 | unsigned long len); | |
195aefde | 442 | int kvm_read_guest(struct kvm *kvm, gpa_t gpa, void *data, unsigned long len); |
e03b644f GN |
443 | int kvm_read_guest_cached(struct kvm *kvm, struct gfn_to_hva_cache *ghc, |
444 | void *data, unsigned long len); | |
195aefde IE |
445 | int kvm_write_guest_page(struct kvm *kvm, gfn_t gfn, const void *data, |
446 | int offset, int len); | |
447 | int kvm_write_guest(struct kvm *kvm, gpa_t gpa, const void *data, | |
448 | unsigned long len); | |
49c7754c GN |
449 | int kvm_write_guest_cached(struct kvm *kvm, struct gfn_to_hva_cache *ghc, |
450 | void *data, unsigned long len); | |
451 | int kvm_gfn_to_hva_cache_init(struct kvm *kvm, struct gfn_to_hva_cache *ghc, | |
452 | gpa_t gpa); | |
195aefde IE |
453 | int kvm_clear_guest_page(struct kvm *kvm, gfn_t gfn, int offset, int len); |
454 | int kvm_clear_guest(struct kvm *kvm, gpa_t gpa, unsigned long len); | |
6aa8b732 | 455 | struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn); |
e0d62c7f | 456 | int kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn); |
8f0b1ab6 | 457 | unsigned long kvm_host_page_size(struct kvm *kvm, gfn_t gfn); |
6aa8b732 | 458 | void mark_page_dirty(struct kvm *kvm, gfn_t gfn); |
49c7754c GN |
459 | void mark_page_dirty_in_slot(struct kvm *kvm, struct kvm_memory_slot *memslot, |
460 | gfn_t gfn); | |
6aa8b732 | 461 | |
8776e519 | 462 | void kvm_vcpu_block(struct kvm_vcpu *vcpu); |
b6d33834 | 463 | void kvm_vcpu_kick(struct kvm_vcpu *vcpu); |
d255f4f2 | 464 | void kvm_vcpu_on_spin(struct kvm_vcpu *vcpu); |
6aa8b732 | 465 | void kvm_resched(struct kvm_vcpu *vcpu); |
7702fd1f AK |
466 | void kvm_load_guest_fpu(struct kvm_vcpu *vcpu); |
467 | void kvm_put_guest_fpu(struct kvm_vcpu *vcpu); | |
a4ee1ca4 | 468 | |
d9e368d6 | 469 | void kvm_flush_remote_tlbs(struct kvm *kvm); |
2e53d63a | 470 | void kvm_reload_remote_mmus(struct kvm *kvm); |
6aa8b732 | 471 | |
043405e1 CO |
472 | long kvm_arch_dev_ioctl(struct file *filp, |
473 | unsigned int ioctl, unsigned long arg); | |
313a3dc7 CO |
474 | long kvm_arch_vcpu_ioctl(struct file *filp, |
475 | unsigned int ioctl, unsigned long arg); | |
5b1c1493 | 476 | int kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf); |
018d00d2 ZX |
477 | |
478 | int kvm_dev_ioctl_check_extension(long ext); | |
479 | ||
5bb064dc ZX |
480 | int kvm_get_dirty_log(struct kvm *kvm, |
481 | struct kvm_dirty_log *log, int *is_dirty); | |
482 | int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, | |
483 | struct kvm_dirty_log *log); | |
484 | ||
1fe779f8 CO |
485 | int kvm_vm_ioctl_set_memory_region(struct kvm *kvm, |
486 | struct | |
487 | kvm_userspace_memory_region *mem, | |
488 | int user_alloc); | |
489 | long kvm_arch_vm_ioctl(struct file *filp, | |
490 | unsigned int ioctl, unsigned long arg); | |
313a3dc7 | 491 | |
d0752060 HB |
492 | int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu); |
493 | int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu); | |
494 | ||
8b006791 ZX |
495 | int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu, |
496 | struct kvm_translation *tr); | |
497 | ||
b6c7a5dc HB |
498 | int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs); |
499 | int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs); | |
500 | int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu, | |
501 | struct kvm_sregs *sregs); | |
502 | int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu, | |
503 | struct kvm_sregs *sregs); | |
62d9f0db MT |
504 | int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu, |
505 | struct kvm_mp_state *mp_state); | |
506 | int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, | |
507 | struct kvm_mp_state *mp_state); | |
d0bfb940 JK |
508 | int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu, |
509 | struct kvm_guest_debug *dbg); | |
b6c7a5dc HB |
510 | int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run); |
511 | ||
f8c16bba ZX |
512 | int kvm_arch_init(void *opaque); |
513 | void kvm_arch_exit(void); | |
043405e1 | 514 | |
e9b11c17 ZX |
515 | int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu); |
516 | void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu); | |
517 | ||
518 | void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu); | |
519 | void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu); | |
520 | void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu); | |
521 | struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id); | |
26e5215f | 522 | int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu); |
d40ccc62 | 523 | void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu); |
e9b11c17 ZX |
524 | |
525 | int kvm_arch_vcpu_reset(struct kvm_vcpu *vcpu); | |
10474ae8 | 526 | int kvm_arch_hardware_enable(void *garbage); |
e9b11c17 ZX |
527 | void kvm_arch_hardware_disable(void *garbage); |
528 | int kvm_arch_hardware_setup(void); | |
529 | void kvm_arch_hardware_unsetup(void); | |
530 | void kvm_arch_check_processor_compat(void *rtn); | |
1d737c8a | 531 | int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu); |
b6d33834 | 532 | int kvm_arch_vcpu_should_kick(struct kvm_vcpu *vcpu); |
e9b11c17 | 533 | |
d19a9cd2 ZX |
534 | void kvm_free_physmem(struct kvm *kvm); |
535 | ||
d89f5eff JK |
536 | #ifndef __KVM_HAVE_ARCH_VM_ALLOC |
537 | static inline struct kvm *kvm_arch_alloc_vm(void) | |
538 | { | |
539 | return kzalloc(sizeof(struct kvm), GFP_KERNEL); | |
540 | } | |
541 | ||
542 | static inline void kvm_arch_free_vm(struct kvm *kvm) | |
543 | { | |
544 | kfree(kvm); | |
545 | } | |
546 | #endif | |
547 | ||
b6d33834 CD |
548 | static inline wait_queue_head_t *kvm_arch_vcpu_wq(struct kvm_vcpu *vcpu) |
549 | { | |
2246f8b5 AG |
550 | #ifdef __KVM_HAVE_ARCH_WQP |
551 | return vcpu->arch.wqp; | |
552 | #else | |
b6d33834 | 553 | return &vcpu->wq; |
b6d33834 | 554 | #endif |
2246f8b5 | 555 | } |
b6d33834 | 556 | |
e08b9637 | 557 | int kvm_arch_init_vm(struct kvm *kvm, unsigned long type); |
d19a9cd2 | 558 | void kvm_arch_destroy_vm(struct kvm *kvm); |
8a98f664 | 559 | void kvm_free_all_assigned_devices(struct kvm *kvm); |
ad8ba2cd | 560 | void kvm_arch_sync_events(struct kvm *kvm); |
e9b11c17 | 561 | |
3d80840d | 562 | int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu); |
5736199a | 563 | void kvm_vcpu_kick(struct kvm_vcpu *vcpu); |
682c59a3 | 564 | |
c77fb9dc XZ |
565 | int kvm_is_mmio_pfn(pfn_t pfn); |
566 | ||
62c476c7 BAY |
567 | struct kvm_irq_ack_notifier { |
568 | struct hlist_node link; | |
569 | unsigned gsi; | |
570 | void (*irq_acked)(struct kvm_irq_ack_notifier *kian); | |
571 | }; | |
572 | ||
573 | struct kvm_assigned_dev_kernel { | |
574 | struct kvm_irq_ack_notifier ack_notifier; | |
62c476c7 BAY |
575 | struct list_head list; |
576 | int assigned_dev_id; | |
ab9f4ecb | 577 | int host_segnr; |
62c476c7 BAY |
578 | int host_busnr; |
579 | int host_devfn; | |
c1e01514 | 580 | unsigned int entries_nr; |
62c476c7 | 581 | int host_irq; |
defaf158 | 582 | bool host_irq_disabled; |
07700a94 | 583 | bool pci_2_3; |
c1e01514 | 584 | struct msix_entry *host_msix_entries; |
62c476c7 | 585 | int guest_irq; |
0645211c | 586 | struct msix_entry *guest_msix_entries; |
4f906c19 | 587 | unsigned long irq_requested_type; |
5550af4d | 588 | int irq_source_id; |
b653574a | 589 | int flags; |
62c476c7 BAY |
590 | struct pci_dev *dev; |
591 | struct kvm *kvm; | |
0645211c | 592 | spinlock_t intx_lock; |
cf9eeac4 | 593 | spinlock_t intx_mask_lock; |
1e001d49 | 594 | char irq_name[32]; |
f8fcfd77 | 595 | struct pci_saved_state *pci_saved_state; |
62c476c7 | 596 | }; |
75858a84 AK |
597 | |
598 | struct kvm_irq_mask_notifier { | |
599 | void (*func)(struct kvm_irq_mask_notifier *kimn, bool masked); | |
600 | int irq; | |
601 | struct hlist_node link; | |
602 | }; | |
603 | ||
604 | void kvm_register_irq_mask_notifier(struct kvm *kvm, int irq, | |
605 | struct kvm_irq_mask_notifier *kimn); | |
606 | void kvm_unregister_irq_mask_notifier(struct kvm *kvm, int irq, | |
607 | struct kvm_irq_mask_notifier *kimn); | |
4a994358 GN |
608 | void kvm_fire_mask_notifiers(struct kvm *kvm, unsigned irqchip, unsigned pin, |
609 | bool mask); | |
75858a84 | 610 | |
46e624b9 GN |
611 | #ifdef __KVM_HAVE_IOAPIC |
612 | void kvm_get_intr_delivery_bitmask(struct kvm_ioapic *ioapic, | |
613 | union kvm_ioapic_redirect_entry *entry, | |
614 | unsigned long *deliver_bitmask); | |
615 | #endif | |
616 | int kvm_set_irq(struct kvm *kvm, int irq_source_id, u32 irq, int level); | |
bd2b53b2 MT |
617 | int kvm_set_msi(struct kvm_kernel_irq_routing_entry *irq_entry, struct kvm *kvm, |
618 | int irq_source_id, int level); | |
44882eed | 619 | void kvm_notify_acked_irq(struct kvm *kvm, unsigned irqchip, unsigned pin); |
3de42dc0 XZ |
620 | void kvm_register_irq_ack_notifier(struct kvm *kvm, |
621 | struct kvm_irq_ack_notifier *kian); | |
fa40a821 MT |
622 | void kvm_unregister_irq_ack_notifier(struct kvm *kvm, |
623 | struct kvm_irq_ack_notifier *kian); | |
5550af4d SY |
624 | int kvm_request_irq_source_id(struct kvm *kvm); |
625 | void kvm_free_irq_source_id(struct kvm *kvm, int irq_source_id); | |
62c476c7 | 626 | |
522c68c4 SY |
627 | /* For vcpu->arch.iommu_flags */ |
628 | #define KVM_IOMMU_CACHE_COHERENCY 0x1 | |
629 | ||
19de40a8 | 630 | #ifdef CONFIG_IOMMU_API |
3ad26d81 | 631 | int kvm_iommu_map_pages(struct kvm *kvm, struct kvm_memory_slot *slot); |
32f6daad | 632 | void kvm_iommu_unmap_pages(struct kvm *kvm, struct kvm_memory_slot *slot); |
260782bc | 633 | int kvm_iommu_map_guest(struct kvm *kvm); |
62c476c7 | 634 | int kvm_iommu_unmap_guest(struct kvm *kvm); |
260782bc WH |
635 | int kvm_assign_device(struct kvm *kvm, |
636 | struct kvm_assigned_dev_kernel *assigned_dev); | |
0a920356 WH |
637 | int kvm_deassign_device(struct kvm *kvm, |
638 | struct kvm_assigned_dev_kernel *assigned_dev); | |
19de40a8 | 639 | #else /* CONFIG_IOMMU_API */ |
62c476c7 | 640 | static inline int kvm_iommu_map_pages(struct kvm *kvm, |
d7a79b6c | 641 | struct kvm_memory_slot *slot) |
62c476c7 BAY |
642 | { |
643 | return 0; | |
644 | } | |
645 | ||
32f6daad AW |
646 | static inline void kvm_iommu_unmap_pages(struct kvm *kvm, |
647 | struct kvm_memory_slot *slot) | |
648 | { | |
649 | } | |
650 | ||
260782bc | 651 | static inline int kvm_iommu_map_guest(struct kvm *kvm) |
62c476c7 BAY |
652 | { |
653 | return -ENODEV; | |
654 | } | |
655 | ||
656 | static inline int kvm_iommu_unmap_guest(struct kvm *kvm) | |
657 | { | |
658 | return 0; | |
659 | } | |
260782bc WH |
660 | |
661 | static inline int kvm_assign_device(struct kvm *kvm, | |
662 | struct kvm_assigned_dev_kernel *assigned_dev) | |
663 | { | |
664 | return 0; | |
665 | } | |
0a920356 WH |
666 | |
667 | static inline int kvm_deassign_device(struct kvm *kvm, | |
668 | struct kvm_assigned_dev_kernel *assigned_dev) | |
669 | { | |
670 | return 0; | |
671 | } | |
19de40a8 | 672 | #endif /* CONFIG_IOMMU_API */ |
62c476c7 | 673 | |
d172fcd3 LV |
674 | static inline void kvm_guest_enter(void) |
675 | { | |
8fa22068 | 676 | BUG_ON(preemptible()); |
e56a7a28 | 677 | account_system_vtime(current); |
d172fcd3 | 678 | current->flags |= PF_VCPU; |
8fa22068 GN |
679 | /* KVM does not hold any references to rcu protected data when it |
680 | * switches CPU into a guest mode. In fact switching to a guest mode | |
681 | * is very similar to exiting to userspase from rcu point of view. In | |
682 | * addition CPU may stay in a guest mode for quite a long time (up to | |
683 | * one time slice). Lets treat guest mode as quiescent state, just like | |
684 | * we do with user-mode execution. | |
685 | */ | |
686 | rcu_virt_note_context_switch(smp_processor_id()); | |
d172fcd3 LV |
687 | } |
688 | ||
689 | static inline void kvm_guest_exit(void) | |
690 | { | |
e56a7a28 | 691 | account_system_vtime(current); |
d172fcd3 LV |
692 | current->flags &= ~PF_VCPU; |
693 | } | |
694 | ||
9d4cba7f PM |
695 | /* |
696 | * search_memslots() and __gfn_to_memslot() are here because they are | |
697 | * used in non-modular code in arch/powerpc/kvm/book3s_hv_rm_mmu.c. | |
698 | * gfn_to_memslot() itself isn't here as an inline because that would | |
699 | * bloat other code too much. | |
700 | */ | |
701 | static inline struct kvm_memory_slot * | |
702 | search_memslots(struct kvm_memslots *slots, gfn_t gfn) | |
703 | { | |
704 | struct kvm_memory_slot *memslot; | |
705 | ||
706 | kvm_for_each_memslot(memslot, slots) | |
707 | if (gfn >= memslot->base_gfn && | |
708 | gfn < memslot->base_gfn + memslot->npages) | |
709 | return memslot; | |
710 | ||
711 | return NULL; | |
712 | } | |
713 | ||
714 | static inline struct kvm_memory_slot * | |
715 | __gfn_to_memslot(struct kvm_memslots *slots, gfn_t gfn) | |
716 | { | |
717 | return search_memslots(slots, gfn); | |
718 | } | |
719 | ||
0ee8dcb8 XG |
720 | static inline int memslot_id(struct kvm *kvm, gfn_t gfn) |
721 | { | |
722 | return gfn_to_memslot(kvm, gfn)->id; | |
723 | } | |
724 | ||
fb03cb6f TY |
725 | static inline gfn_t gfn_to_index(gfn_t gfn, gfn_t base_gfn, int level) |
726 | { | |
727 | /* KVM_HPAGE_GFN_SHIFT(PT_PAGE_TABLE_LEVEL) must be 0. */ | |
728 | return (gfn >> KVM_HPAGE_GFN_SHIFT(level)) - | |
729 | (base_gfn >> KVM_HPAGE_GFN_SHIFT(level)); | |
730 | } | |
731 | ||
887c08ac XG |
732 | static inline unsigned long gfn_to_hva_memslot(struct kvm_memory_slot *slot, |
733 | gfn_t gfn) | |
734 | { | |
735 | return slot->userspace_addr + (gfn - slot->base_gfn) * PAGE_SIZE; | |
736 | } | |
737 | ||
1755fbcc AK |
738 | static inline gpa_t gfn_to_gpa(gfn_t gfn) |
739 | { | |
740 | return (gpa_t)gfn << PAGE_SHIFT; | |
741 | } | |
6aa8b732 | 742 | |
c30a358d JR |
743 | static inline gfn_t gpa_to_gfn(gpa_t gpa) |
744 | { | |
745 | return (gfn_t)(gpa >> PAGE_SHIFT); | |
746 | } | |
747 | ||
62c476c7 BAY |
748 | static inline hpa_t pfn_to_hpa(pfn_t pfn) |
749 | { | |
750 | return (hpa_t)pfn << PAGE_SHIFT; | |
751 | } | |
752 | ||
2f599714 | 753 | static inline void kvm_migrate_timers(struct kvm_vcpu *vcpu) |
2f52d58c AK |
754 | { |
755 | set_bit(KVM_REQ_MIGRATE_TIMER, &vcpu->requests); | |
756 | } | |
757 | ||
ba1389b7 AK |
758 | enum kvm_stat_kind { |
759 | KVM_STAT_VM, | |
760 | KVM_STAT_VCPU, | |
761 | }; | |
762 | ||
417bc304 HB |
763 | struct kvm_stats_debugfs_item { |
764 | const char *name; | |
765 | int offset; | |
ba1389b7 | 766 | enum kvm_stat_kind kind; |
417bc304 HB |
767 | struct dentry *dentry; |
768 | }; | |
769 | extern struct kvm_stats_debugfs_item debugfs_entries[]; | |
76f7c879 | 770 | extern struct dentry *kvm_debugfs_dir; |
d4c9ff2d | 771 | |
e930bffe AA |
772 | #ifdef KVM_ARCH_WANT_MMU_NOTIFIER |
773 | static inline int mmu_notifier_retry(struct kvm_vcpu *vcpu, unsigned long mmu_seq) | |
774 | { | |
775 | if (unlikely(vcpu->kvm->mmu_notifier_count)) | |
776 | return 1; | |
777 | /* | |
a355aa54 PM |
778 | * Ensure the read of mmu_notifier_count happens before the read |
779 | * of mmu_notifier_seq. This interacts with the smp_wmb() in | |
780 | * mmu_notifier_invalidate_range_end to make sure that the caller | |
781 | * either sees the old (non-zero) value of mmu_notifier_count or | |
782 | * the new (incremented) value of mmu_notifier_seq. | |
783 | * PowerPC Book3s HV KVM calls this under a per-page lock | |
784 | * rather than under kvm->mmu_lock, for scalability, so | |
785 | * can't rely on kvm->mmu_lock to keep things ordered. | |
e930bffe | 786 | */ |
a355aa54 | 787 | smp_rmb(); |
e930bffe AA |
788 | if (vcpu->kvm->mmu_notifier_seq != mmu_seq) |
789 | return 1; | |
790 | return 0; | |
791 | } | |
792 | #endif | |
793 | ||
399ec807 AK |
794 | #ifdef CONFIG_HAVE_KVM_IRQCHIP |
795 | ||
796 | #define KVM_MAX_IRQ_ROUTES 1024 | |
797 | ||
798 | int kvm_setup_default_irq_routing(struct kvm *kvm); | |
799 | int kvm_set_irq_routing(struct kvm *kvm, | |
800 | const struct kvm_irq_routing_entry *entries, | |
801 | unsigned nr, | |
802 | unsigned flags); | |
803 | void kvm_free_irq_routing(struct kvm *kvm); | |
804 | ||
805 | #else | |
806 | ||
807 | static inline void kvm_free_irq_routing(struct kvm *kvm) {} | |
808 | ||
809 | #endif | |
810 | ||
721eecbf GH |
811 | #ifdef CONFIG_HAVE_KVM_EVENTFD |
812 | ||
d34e6b17 | 813 | void kvm_eventfd_init(struct kvm *kvm); |
721eecbf GH |
814 | int kvm_irqfd(struct kvm *kvm, int fd, int gsi, int flags); |
815 | void kvm_irqfd_release(struct kvm *kvm); | |
bd2b53b2 | 816 | void kvm_irq_routing_update(struct kvm *, struct kvm_irq_routing_table *); |
d34e6b17 | 817 | int kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args); |
721eecbf GH |
818 | |
819 | #else | |
820 | ||
d34e6b17 | 821 | static inline void kvm_eventfd_init(struct kvm *kvm) {} |
bd2b53b2 | 822 | |
721eecbf GH |
823 | static inline int kvm_irqfd(struct kvm *kvm, int fd, int gsi, int flags) |
824 | { | |
825 | return -EINVAL; | |
826 | } | |
827 | ||
828 | static inline void kvm_irqfd_release(struct kvm *kvm) {} | |
bd2b53b2 | 829 | |
27923eb1 | 830 | #ifdef CONFIG_HAVE_KVM_IRQCHIP |
bd2b53b2 MT |
831 | static inline void kvm_irq_routing_update(struct kvm *kvm, |
832 | struct kvm_irq_routing_table *irq_rt) | |
833 | { | |
834 | rcu_assign_pointer(kvm->irq_routing, irq_rt); | |
835 | } | |
27923eb1 | 836 | #endif |
bd2b53b2 | 837 | |
d34e6b17 GH |
838 | static inline int kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args) |
839 | { | |
840 | return -ENOSYS; | |
841 | } | |
721eecbf GH |
842 | |
843 | #endif /* CONFIG_HAVE_KVM_EVENTFD */ | |
844 | ||
73880c80 | 845 | #ifdef CONFIG_KVM_APIC_ARCHITECTURE |
c5af89b6 GN |
846 | static inline bool kvm_vcpu_is_bsp(struct kvm_vcpu *vcpu) |
847 | { | |
d3efc8ef | 848 | return vcpu->kvm->bsp_vcpu_id == vcpu->vcpu_id; |
c5af89b6 | 849 | } |
3e515705 AK |
850 | |
851 | bool kvm_vcpu_compatible(struct kvm_vcpu *vcpu); | |
852 | ||
853 | #else | |
854 | ||
855 | static inline bool kvm_vcpu_compatible(struct kvm_vcpu *vcpu) { return true; } | |
856 | ||
6aa8b732 | 857 | #endif |
bfd99ff5 AK |
858 | |
859 | #ifdef __KVM_HAVE_DEVICE_ASSIGNMENT | |
860 | ||
861 | long kvm_vm_ioctl_assigned_device(struct kvm *kvm, unsigned ioctl, | |
862 | unsigned long arg); | |
863 | ||
864 | #else | |
865 | ||
866 | static inline long kvm_vm_ioctl_assigned_device(struct kvm *kvm, unsigned ioctl, | |
867 | unsigned long arg) | |
868 | { | |
869 | return -ENOTTY; | |
870 | } | |
871 | ||
73880c80 | 872 | #endif |
bfd99ff5 | 873 | |
a8eeb04a AK |
874 | static inline void kvm_make_request(int req, struct kvm_vcpu *vcpu) |
875 | { | |
876 | set_bit(req, &vcpu->requests); | |
877 | } | |
878 | ||
a8eeb04a AK |
879 | static inline bool kvm_check_request(int req, struct kvm_vcpu *vcpu) |
880 | { | |
0719837c AK |
881 | if (test_bit(req, &vcpu->requests)) { |
882 | clear_bit(req, &vcpu->requests); | |
883 | return true; | |
884 | } else { | |
885 | return false; | |
886 | } | |
a8eeb04a AK |
887 | } |
888 | ||
bfd99ff5 AK |
889 | #endif |
890 |