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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> | |
6aa8b732 | 16 | #include <linux/mm.h> |
15ad7146 | 17 | #include <linux/preempt.h> |
0937c48d | 18 | #include <linux/msi.h> |
d89f5eff | 19 | #include <linux/slab.h> |
bd2b53b2 | 20 | #include <linux/rcupdate.h> |
e8edc6e0 | 21 | #include <asm/signal.h> |
6aa8b732 | 22 | |
6aa8b732 | 23 | #include <linux/kvm.h> |
102d8325 | 24 | #include <linux/kvm_para.h> |
6aa8b732 | 25 | |
edf88417 | 26 | #include <linux/kvm_types.h> |
d77a39d9 | 27 | |
edf88417 | 28 | #include <asm/kvm_host.h> |
d657a98e | 29 | |
d9e368d6 AK |
30 | /* |
31 | * vcpu->requests bit members | |
32 | */ | |
3176bc3e | 33 | #define KVM_REQ_TLB_FLUSH 0 |
2f52d58c | 34 | #define KVM_REQ_MIGRATE_TIMER 1 |
b209749f | 35 | #define KVM_REQ_REPORT_TPR_ACCESS 2 |
2e53d63a | 36 | #define KVM_REQ_MMU_RELOAD 3 |
71c4dfaf | 37 | #define KVM_REQ_TRIPLE_FAULT 4 |
06e05645 | 38 | #define KVM_REQ_PENDING_TIMER 5 |
d7690175 | 39 | #define KVM_REQ_UNHALT 6 |
4731d4c7 | 40 | #define KVM_REQ_MMU_SYNC 7 |
34c238a1 | 41 | #define KVM_REQ_CLOCK_UPDATE 8 |
32f88400 | 42 | #define KVM_REQ_KICK 9 |
02daab21 | 43 | #define KVM_REQ_DEACTIVATE_FPU 10 |
3842d135 | 44 | #define KVM_REQ_EVENT 11 |
af585b92 | 45 | #define KVM_REQ_APF_HALT 12 |
6aa8b732 | 46 | |
5550af4d SY |
47 | #define KVM_USERSPACE_IRQ_SOURCE_ID 0 |
48 | ||
6c474694 | 49 | struct kvm; |
6aa8b732 | 50 | struct kvm_vcpu; |
c16f862d | 51 | extern struct kmem_cache *kvm_vcpu_cache; |
6aa8b732 | 52 | |
2eeb2e94 GH |
53 | /* |
54 | * It would be nice to use something smarter than a linear search, TBD... | |
55 | * Thankfully we dont expect many devices to register (famous last words :), | |
56 | * so until then it will suffice. At least its abstracted so we can change | |
57 | * in one place. | |
58 | */ | |
59 | struct kvm_io_bus { | |
60 | int dev_count; | |
e80e2a60 | 61 | #define NR_IOBUS_DEVS 200 |
2eeb2e94 GH |
62 | struct kvm_io_device *devs[NR_IOBUS_DEVS]; |
63 | }; | |
64 | ||
e93f8a0f MT |
65 | enum kvm_bus { |
66 | KVM_MMIO_BUS, | |
67 | KVM_PIO_BUS, | |
68 | KVM_NR_BUSES | |
69 | }; | |
70 | ||
71 | int kvm_io_bus_write(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr, | |
72 | int len, const void *val); | |
73 | int kvm_io_bus_read(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr, int len, | |
bda9020e | 74 | void *val); |
e93f8a0f | 75 | int kvm_io_bus_register_dev(struct kvm *kvm, enum kvm_bus bus_idx, |
090b7aff | 76 | struct kvm_io_device *dev); |
e93f8a0f MT |
77 | int kvm_io_bus_unregister_dev(struct kvm *kvm, enum kvm_bus bus_idx, |
78 | struct kvm_io_device *dev); | |
2eeb2e94 | 79 | |
af585b92 GN |
80 | #ifdef CONFIG_KVM_ASYNC_PF |
81 | struct kvm_async_pf { | |
82 | struct work_struct work; | |
83 | struct list_head link; | |
84 | struct list_head queue; | |
85 | struct kvm_vcpu *vcpu; | |
86 | struct mm_struct *mm; | |
87 | gva_t gva; | |
88 | unsigned long addr; | |
89 | struct kvm_arch_async_pf arch; | |
90 | struct page *page; | |
91 | bool done; | |
92 | }; | |
93 | ||
94 | void kvm_clear_async_pf_completion_queue(struct kvm_vcpu *vcpu); | |
95 | void kvm_check_async_pf_completion(struct kvm_vcpu *vcpu); | |
96 | int kvm_setup_async_pf(struct kvm_vcpu *vcpu, gva_t gva, gfn_t gfn, | |
97 | struct kvm_arch_async_pf *arch); | |
344d9588 | 98 | int kvm_async_pf_wakeup_all(struct kvm_vcpu *vcpu); |
af585b92 GN |
99 | #endif |
100 | ||
d17fbbf7 ZX |
101 | struct kvm_vcpu { |
102 | struct kvm *kvm; | |
31bb117e | 103 | #ifdef CONFIG_PREEMPT_NOTIFIERS |
d17fbbf7 | 104 | struct preempt_notifier preempt_notifier; |
31bb117e | 105 | #endif |
d17fbbf7 ZX |
106 | int vcpu_id; |
107 | struct mutex mutex; | |
108 | int cpu; | |
d94e1dc9 | 109 | atomic_t guest_mode; |
d17fbbf7 | 110 | struct kvm_run *run; |
d17fbbf7 | 111 | unsigned long requests; |
d0bfb940 | 112 | unsigned long guest_debug; |
f656ce01 MT |
113 | int srcu_idx; |
114 | ||
d17fbbf7 | 115 | int fpu_active; |
2acf923e | 116 | int guest_fpu_loaded, guest_xcr0_loaded; |
d17fbbf7 ZX |
117 | wait_queue_head_t wq; |
118 | int sigset_active; | |
119 | sigset_t sigset; | |
120 | struct kvm_vcpu_stat stat; | |
121 | ||
34c16eec | 122 | #ifdef CONFIG_HAS_IOMEM |
d17fbbf7 ZX |
123 | int mmio_needed; |
124 | int mmio_read_completed; | |
125 | int mmio_is_write; | |
126 | int mmio_size; | |
127 | unsigned char mmio_data[8]; | |
6aa8b732 | 128 | gpa_t mmio_phys_addr; |
34c16eec | 129 | #endif |
1165f5fe | 130 | |
af585b92 GN |
131 | #ifdef CONFIG_KVM_ASYNC_PF |
132 | struct { | |
133 | u32 queued; | |
134 | struct list_head queue; | |
135 | struct list_head done; | |
136 | spinlock_t lock; | |
137 | } async_pf; | |
138 | #endif | |
139 | ||
d657a98e ZX |
140 | struct kvm_vcpu_arch arch; |
141 | }; | |
142 | ||
660c22c4 TY |
143 | /* |
144 | * Some of the bitops functions do not support too long bitmaps. | |
145 | * This number must be determined not to exceed such limits. | |
146 | */ | |
147 | #define KVM_MEM_MAX_NR_PAGES ((1UL << 31) - 1) | |
148 | ||
d4dbf470 TY |
149 | struct kvm_lpage_info { |
150 | unsigned long rmap_pde; | |
151 | int write_count; | |
152 | }; | |
153 | ||
6aa8b732 AK |
154 | struct kvm_memory_slot { |
155 | gfn_t base_gfn; | |
156 | unsigned long npages; | |
157 | unsigned long flags; | |
290fc38d | 158 | unsigned long *rmap; |
6aa8b732 | 159 | unsigned long *dirty_bitmap; |
515a0127 | 160 | unsigned long *dirty_bitmap_head; |
d4dbf470 | 161 | struct kvm_lpage_info *lpage_info[KVM_NR_PAGE_SIZES - 1]; |
8a7ae055 | 162 | unsigned long userspace_addr; |
80b14b5b | 163 | int user_alloc; |
e36d96f7 | 164 | int id; |
6aa8b732 AK |
165 | }; |
166 | ||
87bf6e7d TY |
167 | static inline unsigned long kvm_dirty_bitmap_bytes(struct kvm_memory_slot *memslot) |
168 | { | |
169 | return ALIGN(memslot->npages, BITS_PER_LONG) / 8; | |
170 | } | |
171 | ||
399ec807 AK |
172 | struct kvm_kernel_irq_routing_entry { |
173 | u32 gsi; | |
5116d8f6 | 174 | u32 type; |
4925663a | 175 | int (*set)(struct kvm_kernel_irq_routing_entry *e, |
1a6e4a8c | 176 | struct kvm *kvm, int irq_source_id, int level); |
399ec807 AK |
177 | union { |
178 | struct { | |
179 | unsigned irqchip; | |
180 | unsigned pin; | |
181 | } irqchip; | |
79950e10 | 182 | struct msi_msg msi; |
399ec807 | 183 | }; |
46e624b9 GN |
184 | struct hlist_node link; |
185 | }; | |
186 | ||
3e71f88b GN |
187 | #ifdef __KVM_HAVE_IOAPIC |
188 | ||
46e624b9 | 189 | struct kvm_irq_routing_table { |
3e71f88b | 190 | int chip[KVM_NR_IRQCHIPS][KVM_IOAPIC_NUM_PINS]; |
46e624b9 GN |
191 | struct kvm_kernel_irq_routing_entry *rt_entries; |
192 | u32 nr_rt_entries; | |
193 | /* | |
194 | * Array indexed by gsi. Each entry contains list of irq chips | |
195 | * the gsi is connected to. | |
196 | */ | |
197 | struct hlist_head map[0]; | |
399ec807 AK |
198 | }; |
199 | ||
3e71f88b GN |
200 | #else |
201 | ||
202 | struct kvm_irq_routing_table {}; | |
203 | ||
204 | #endif | |
205 | ||
46a26bf5 MT |
206 | struct kvm_memslots { |
207 | int nmemslots; | |
49c7754c | 208 | u64 generation; |
46a26bf5 MT |
209 | struct kvm_memory_slot memslots[KVM_MEMORY_SLOTS + |
210 | KVM_PRIVATE_MEM_SLOTS]; | |
211 | }; | |
212 | ||
6aa8b732 | 213 | struct kvm { |
aaee2c94 | 214 | spinlock_t mmu_lock; |
70e335e1 | 215 | raw_spinlock_t requests_lock; |
79fac95e | 216 | struct mutex slots_lock; |
6d4e4c4f | 217 | struct mm_struct *mm; /* userspace tied to this vm */ |
46a26bf5 | 218 | struct kvm_memslots *memslots; |
bc6678a3 | 219 | struct srcu_struct srcu; |
73880c80 GN |
220 | #ifdef CONFIG_KVM_APIC_ARCHITECTURE |
221 | u32 bsp_vcpu_id; | |
c5af89b6 | 222 | struct kvm_vcpu *bsp_vcpu; |
73880c80 | 223 | #endif |
fb3f0f51 | 224 | struct kvm_vcpu *vcpus[KVM_MAX_VCPUS]; |
73880c80 | 225 | atomic_t online_vcpus; |
133de902 | 226 | struct list_head vm_list; |
60eead79 | 227 | struct mutex lock; |
e93f8a0f | 228 | struct kvm_io_bus *buses[KVM_NR_BUSES]; |
721eecbf GH |
229 | #ifdef CONFIG_HAVE_KVM_EVENTFD |
230 | struct { | |
231 | spinlock_t lock; | |
232 | struct list_head items; | |
233 | } irqfds; | |
d34e6b17 | 234 | struct list_head ioeventfds; |
721eecbf | 235 | #endif |
ba1389b7 | 236 | struct kvm_vm_stat stat; |
d69fb81f | 237 | struct kvm_arch arch; |
d39f13b0 | 238 | atomic_t users_count; |
5f94c174 LV |
239 | #ifdef KVM_COALESCED_MMIO_PAGE_OFFSET |
240 | struct kvm_coalesced_mmio_dev *coalesced_mmio_dev; | |
241 | struct kvm_coalesced_mmio_ring *coalesced_mmio_ring; | |
242 | #endif | |
e930bffe | 243 | |
60eead79 | 244 | struct mutex irq_lock; |
75858a84 | 245 | #ifdef CONFIG_HAVE_KVM_IRQCHIP |
bd2b53b2 MT |
246 | /* |
247 | * Update side is protected by irq_lock and, | |
248 | * if configured, irqfds.lock. | |
249 | */ | |
4b6a2872 | 250 | struct kvm_irq_routing_table __rcu *irq_routing; |
75858a84 | 251 | struct hlist_head mask_notifier_list; |
136bdfee | 252 | struct hlist_head irq_ack_notifier_list; |
75858a84 AK |
253 | #endif |
254 | ||
e930bffe AA |
255 | #ifdef KVM_ARCH_WANT_MMU_NOTIFIER |
256 | struct mmu_notifier mmu_notifier; | |
257 | unsigned long mmu_notifier_seq; | |
258 | long mmu_notifier_count; | |
259 | #endif | |
5c663a15 | 260 | long tlbs_dirty; |
6aa8b732 AK |
261 | }; |
262 | ||
f0242478 RR |
263 | /* The guest did something we don't support. */ |
264 | #define pr_unimpl(vcpu, fmt, ...) \ | |
265 | do { \ | |
266 | if (printk_ratelimit()) \ | |
267 | printk(KERN_ERR "kvm: %i: cpu%i " fmt, \ | |
268 | current->tgid, (vcpu)->vcpu_id , ## __VA_ARGS__); \ | |
d77c26fc | 269 | } while (0) |
f0242478 | 270 | |
6aa8b732 AK |
271 | #define kvm_printf(kvm, fmt ...) printk(KERN_DEBUG fmt) |
272 | #define vcpu_printf(vcpu, fmt...) kvm_printf(vcpu->kvm, fmt) | |
273 | ||
988a2cae GN |
274 | static inline struct kvm_vcpu *kvm_get_vcpu(struct kvm *kvm, int i) |
275 | { | |
276 | smp_rmb(); | |
277 | return kvm->vcpus[i]; | |
278 | } | |
279 | ||
280 | #define kvm_for_each_vcpu(idx, vcpup, kvm) \ | |
281 | for (idx = 0, vcpup = kvm_get_vcpu(kvm, idx); \ | |
282 | idx < atomic_read(&kvm->online_vcpus) && vcpup; \ | |
283 | vcpup = kvm_get_vcpu(kvm, ++idx)) | |
284 | ||
fb3f0f51 RR |
285 | int kvm_vcpu_init(struct kvm_vcpu *vcpu, struct kvm *kvm, unsigned id); |
286 | void kvm_vcpu_uninit(struct kvm_vcpu *vcpu); | |
287 | ||
313a3dc7 CO |
288 | void vcpu_load(struct kvm_vcpu *vcpu); |
289 | void vcpu_put(struct kvm_vcpu *vcpu); | |
290 | ||
0ee75bea | 291 | int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align, |
c16f862d | 292 | struct module *module); |
cb498ea2 | 293 | void kvm_exit(void); |
6aa8b732 | 294 | |
d39f13b0 IE |
295 | void kvm_get_kvm(struct kvm *kvm); |
296 | void kvm_put_kvm(struct kvm *kvm); | |
297 | ||
90d83dc3 LJ |
298 | static inline struct kvm_memslots *kvm_memslots(struct kvm *kvm) |
299 | { | |
300 | return rcu_dereference_check(kvm->memslots, | |
301 | srcu_read_lock_held(&kvm->srcu) | |
302 | || lockdep_is_held(&kvm->slots_lock)); | |
303 | } | |
304 | ||
6aa8b732 AK |
305 | #define HPA_MSB ((sizeof(hpa_t) * 8) - 1) |
306 | #define HPA_ERR_MASK ((hpa_t)1 << HPA_MSB) | |
307 | static inline int is_error_hpa(hpa_t hpa) { return hpa >> HPA_MSB; } | |
6aa8b732 | 308 | |
cea7bb21 | 309 | extern struct page *bad_page; |
35149e21 | 310 | extern pfn_t bad_pfn; |
6aa8b732 | 311 | |
cea7bb21 | 312 | int is_error_page(struct page *page); |
35149e21 | 313 | int is_error_pfn(pfn_t pfn); |
bf998156 | 314 | int is_hwpoison_pfn(pfn_t pfn); |
edba23e5 | 315 | int is_fault_pfn(pfn_t pfn); |
f9d46eb0 | 316 | int kvm_is_error_hva(unsigned long addr); |
210c7c4d IE |
317 | int kvm_set_memory_region(struct kvm *kvm, |
318 | struct kvm_userspace_memory_region *mem, | |
319 | int user_alloc); | |
f78e0e2e SY |
320 | int __kvm_set_memory_region(struct kvm *kvm, |
321 | struct kvm_userspace_memory_region *mem, | |
322 | int user_alloc); | |
f7784b8e MT |
323 | int kvm_arch_prepare_memory_region(struct kvm *kvm, |
324 | struct kvm_memory_slot *memslot, | |
325 | struct kvm_memory_slot old, | |
326 | struct kvm_userspace_memory_region *mem, | |
327 | int user_alloc); | |
328 | void kvm_arch_commit_memory_region(struct kvm *kvm, | |
0de10343 ZX |
329 | struct kvm_userspace_memory_region *mem, |
330 | struct kvm_memory_slot old, | |
331 | int user_alloc); | |
54dee993 | 332 | void kvm_disable_largepages(void); |
34d4cb8f | 333 | void kvm_arch_flush_shadow(struct kvm *kvm); |
a983fb23 | 334 | |
48987781 XG |
335 | int gfn_to_page_many_atomic(struct kvm *kvm, gfn_t gfn, struct page **pages, |
336 | int nr_pages); | |
337 | ||
954bbbc2 | 338 | struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn); |
05da4558 | 339 | unsigned long gfn_to_hva(struct kvm *kvm, gfn_t gfn); |
b4231d61 IE |
340 | void kvm_release_page_clean(struct page *page); |
341 | void kvm_release_page_dirty(struct page *page); | |
35149e21 AL |
342 | void kvm_set_page_dirty(struct page *page); |
343 | void kvm_set_page_accessed(struct page *page); | |
344 | ||
887c08ac | 345 | pfn_t hva_to_pfn_atomic(struct kvm *kvm, unsigned long addr); |
365fb3fd | 346 | pfn_t gfn_to_pfn_atomic(struct kvm *kvm, gfn_t gfn); |
612819c3 MT |
347 | pfn_t gfn_to_pfn_async(struct kvm *kvm, gfn_t gfn, bool *async, |
348 | bool write_fault, bool *writable); | |
35149e21 | 349 | pfn_t gfn_to_pfn(struct kvm *kvm, gfn_t gfn); |
612819c3 MT |
350 | pfn_t gfn_to_pfn_prot(struct kvm *kvm, gfn_t gfn, bool write_fault, |
351 | bool *writable); | |
506f0d6f MT |
352 | pfn_t gfn_to_pfn_memslot(struct kvm *kvm, |
353 | struct kvm_memory_slot *slot, gfn_t gfn); | |
bc6678a3 | 354 | int memslot_id(struct kvm *kvm, gfn_t gfn); |
35149e21 AL |
355 | void kvm_release_pfn_dirty(pfn_t); |
356 | void kvm_release_pfn_clean(pfn_t pfn); | |
357 | void kvm_set_pfn_dirty(pfn_t pfn); | |
358 | void kvm_set_pfn_accessed(pfn_t pfn); | |
359 | void kvm_get_pfn(pfn_t pfn); | |
360 | ||
195aefde IE |
361 | int kvm_read_guest_page(struct kvm *kvm, gfn_t gfn, void *data, int offset, |
362 | int len); | |
7ec54588 MT |
363 | int kvm_read_guest_atomic(struct kvm *kvm, gpa_t gpa, void *data, |
364 | unsigned long len); | |
195aefde IE |
365 | int kvm_read_guest(struct kvm *kvm, gpa_t gpa, void *data, unsigned long len); |
366 | int kvm_write_guest_page(struct kvm *kvm, gfn_t gfn, const void *data, | |
367 | int offset, int len); | |
368 | int kvm_write_guest(struct kvm *kvm, gpa_t gpa, const void *data, | |
369 | unsigned long len); | |
49c7754c GN |
370 | int kvm_write_guest_cached(struct kvm *kvm, struct gfn_to_hva_cache *ghc, |
371 | void *data, unsigned long len); | |
372 | int kvm_gfn_to_hva_cache_init(struct kvm *kvm, struct gfn_to_hva_cache *ghc, | |
373 | gpa_t gpa); | |
195aefde IE |
374 | int kvm_clear_guest_page(struct kvm *kvm, gfn_t gfn, int offset, int len); |
375 | int kvm_clear_guest(struct kvm *kvm, gpa_t gpa, unsigned long len); | |
6aa8b732 | 376 | struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn); |
e0d62c7f | 377 | int kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn); |
8f0b1ab6 | 378 | unsigned long kvm_host_page_size(struct kvm *kvm, gfn_t gfn); |
6aa8b732 | 379 | void mark_page_dirty(struct kvm *kvm, gfn_t gfn); |
49c7754c GN |
380 | void mark_page_dirty_in_slot(struct kvm *kvm, struct kvm_memory_slot *memslot, |
381 | gfn_t gfn); | |
6aa8b732 | 382 | |
8776e519 | 383 | void kvm_vcpu_block(struct kvm_vcpu *vcpu); |
d255f4f2 | 384 | void kvm_vcpu_on_spin(struct kvm_vcpu *vcpu); |
6aa8b732 | 385 | void kvm_resched(struct kvm_vcpu *vcpu); |
7702fd1f AK |
386 | void kvm_load_guest_fpu(struct kvm_vcpu *vcpu); |
387 | void kvm_put_guest_fpu(struct kvm_vcpu *vcpu); | |
a4ee1ca4 | 388 | |
d9e368d6 | 389 | void kvm_flush_remote_tlbs(struct kvm *kvm); |
2e53d63a | 390 | void kvm_reload_remote_mmus(struct kvm *kvm); |
6aa8b732 | 391 | |
043405e1 CO |
392 | long kvm_arch_dev_ioctl(struct file *filp, |
393 | unsigned int ioctl, unsigned long arg); | |
313a3dc7 CO |
394 | long kvm_arch_vcpu_ioctl(struct file *filp, |
395 | unsigned int ioctl, unsigned long arg); | |
018d00d2 ZX |
396 | |
397 | int kvm_dev_ioctl_check_extension(long ext); | |
398 | ||
5bb064dc ZX |
399 | int kvm_get_dirty_log(struct kvm *kvm, |
400 | struct kvm_dirty_log *log, int *is_dirty); | |
401 | int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, | |
402 | struct kvm_dirty_log *log); | |
403 | ||
1fe779f8 CO |
404 | int kvm_vm_ioctl_set_memory_region(struct kvm *kvm, |
405 | struct | |
406 | kvm_userspace_memory_region *mem, | |
407 | int user_alloc); | |
408 | long kvm_arch_vm_ioctl(struct file *filp, | |
409 | unsigned int ioctl, unsigned long arg); | |
313a3dc7 | 410 | |
d0752060 HB |
411 | int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu); |
412 | int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu); | |
413 | ||
8b006791 ZX |
414 | int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu, |
415 | struct kvm_translation *tr); | |
416 | ||
b6c7a5dc HB |
417 | int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs); |
418 | int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs); | |
419 | int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu, | |
420 | struct kvm_sregs *sregs); | |
421 | int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu, | |
422 | struct kvm_sregs *sregs); | |
62d9f0db MT |
423 | int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu, |
424 | struct kvm_mp_state *mp_state); | |
425 | int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, | |
426 | struct kvm_mp_state *mp_state); | |
d0bfb940 JK |
427 | int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu, |
428 | struct kvm_guest_debug *dbg); | |
b6c7a5dc HB |
429 | int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run); |
430 | ||
f8c16bba ZX |
431 | int kvm_arch_init(void *opaque); |
432 | void kvm_arch_exit(void); | |
043405e1 | 433 | |
e9b11c17 ZX |
434 | int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu); |
435 | void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu); | |
436 | ||
437 | void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu); | |
438 | void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu); | |
439 | void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu); | |
440 | struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id); | |
26e5215f | 441 | int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu); |
d40ccc62 | 442 | void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu); |
e9b11c17 ZX |
443 | |
444 | int kvm_arch_vcpu_reset(struct kvm_vcpu *vcpu); | |
10474ae8 | 445 | int kvm_arch_hardware_enable(void *garbage); |
e9b11c17 ZX |
446 | void kvm_arch_hardware_disable(void *garbage); |
447 | int kvm_arch_hardware_setup(void); | |
448 | void kvm_arch_hardware_unsetup(void); | |
449 | void kvm_arch_check_processor_compat(void *rtn); | |
1d737c8a | 450 | int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu); |
e9b11c17 | 451 | |
d19a9cd2 ZX |
452 | void kvm_free_physmem(struct kvm *kvm); |
453 | ||
d89f5eff JK |
454 | #ifndef __KVM_HAVE_ARCH_VM_ALLOC |
455 | static inline struct kvm *kvm_arch_alloc_vm(void) | |
456 | { | |
457 | return kzalloc(sizeof(struct kvm), GFP_KERNEL); | |
458 | } | |
459 | ||
460 | static inline void kvm_arch_free_vm(struct kvm *kvm) | |
461 | { | |
462 | kfree(kvm); | |
463 | } | |
464 | #endif | |
465 | ||
466 | int kvm_arch_init_vm(struct kvm *kvm); | |
d19a9cd2 | 467 | void kvm_arch_destroy_vm(struct kvm *kvm); |
8a98f664 | 468 | void kvm_free_all_assigned_devices(struct kvm *kvm); |
ad8ba2cd | 469 | void kvm_arch_sync_events(struct kvm *kvm); |
e9b11c17 | 470 | |
3d80840d | 471 | int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu); |
5736199a | 472 | void kvm_vcpu_kick(struct kvm_vcpu *vcpu); |
682c59a3 | 473 | |
c77fb9dc XZ |
474 | int kvm_is_mmio_pfn(pfn_t pfn); |
475 | ||
62c476c7 BAY |
476 | struct kvm_irq_ack_notifier { |
477 | struct hlist_node link; | |
478 | unsigned gsi; | |
479 | void (*irq_acked)(struct kvm_irq_ack_notifier *kian); | |
480 | }; | |
481 | ||
482 | struct kvm_assigned_dev_kernel { | |
483 | struct kvm_irq_ack_notifier ack_notifier; | |
62c476c7 BAY |
484 | struct list_head list; |
485 | int assigned_dev_id; | |
ab9f4ecb | 486 | int host_segnr; |
62c476c7 BAY |
487 | int host_busnr; |
488 | int host_devfn; | |
c1e01514 | 489 | unsigned int entries_nr; |
62c476c7 | 490 | int host_irq; |
defaf158 | 491 | bool host_irq_disabled; |
c1e01514 | 492 | struct msix_entry *host_msix_entries; |
62c476c7 | 493 | int guest_irq; |
0645211c | 494 | struct msix_entry *guest_msix_entries; |
4f906c19 | 495 | unsigned long irq_requested_type; |
5550af4d | 496 | int irq_source_id; |
b653574a | 497 | int flags; |
62c476c7 BAY |
498 | struct pci_dev *dev; |
499 | struct kvm *kvm; | |
0645211c | 500 | spinlock_t intx_lock; |
1e001d49 | 501 | char irq_name[32]; |
62c476c7 | 502 | }; |
75858a84 AK |
503 | |
504 | struct kvm_irq_mask_notifier { | |
505 | void (*func)(struct kvm_irq_mask_notifier *kimn, bool masked); | |
506 | int irq; | |
507 | struct hlist_node link; | |
508 | }; | |
509 | ||
510 | void kvm_register_irq_mask_notifier(struct kvm *kvm, int irq, | |
511 | struct kvm_irq_mask_notifier *kimn); | |
512 | void kvm_unregister_irq_mask_notifier(struct kvm *kvm, int irq, | |
513 | struct kvm_irq_mask_notifier *kimn); | |
4a994358 GN |
514 | void kvm_fire_mask_notifiers(struct kvm *kvm, unsigned irqchip, unsigned pin, |
515 | bool mask); | |
75858a84 | 516 | |
46e624b9 GN |
517 | #ifdef __KVM_HAVE_IOAPIC |
518 | void kvm_get_intr_delivery_bitmask(struct kvm_ioapic *ioapic, | |
519 | union kvm_ioapic_redirect_entry *entry, | |
520 | unsigned long *deliver_bitmask); | |
521 | #endif | |
522 | int kvm_set_irq(struct kvm *kvm, int irq_source_id, u32 irq, int level); | |
bd2b53b2 MT |
523 | int kvm_set_msi(struct kvm_kernel_irq_routing_entry *irq_entry, struct kvm *kvm, |
524 | int irq_source_id, int level); | |
44882eed | 525 | void kvm_notify_acked_irq(struct kvm *kvm, unsigned irqchip, unsigned pin); |
3de42dc0 XZ |
526 | void kvm_register_irq_ack_notifier(struct kvm *kvm, |
527 | struct kvm_irq_ack_notifier *kian); | |
fa40a821 MT |
528 | void kvm_unregister_irq_ack_notifier(struct kvm *kvm, |
529 | struct kvm_irq_ack_notifier *kian); | |
5550af4d SY |
530 | int kvm_request_irq_source_id(struct kvm *kvm); |
531 | void kvm_free_irq_source_id(struct kvm *kvm, int irq_source_id); | |
62c476c7 | 532 | |
522c68c4 SY |
533 | /* For vcpu->arch.iommu_flags */ |
534 | #define KVM_IOMMU_CACHE_COHERENCY 0x1 | |
535 | ||
19de40a8 | 536 | #ifdef CONFIG_IOMMU_API |
3ad26d81 | 537 | int kvm_iommu_map_pages(struct kvm *kvm, struct kvm_memory_slot *slot); |
260782bc | 538 | int kvm_iommu_map_guest(struct kvm *kvm); |
62c476c7 | 539 | int kvm_iommu_unmap_guest(struct kvm *kvm); |
260782bc WH |
540 | int kvm_assign_device(struct kvm *kvm, |
541 | struct kvm_assigned_dev_kernel *assigned_dev); | |
0a920356 WH |
542 | int kvm_deassign_device(struct kvm *kvm, |
543 | struct kvm_assigned_dev_kernel *assigned_dev); | |
19de40a8 | 544 | #else /* CONFIG_IOMMU_API */ |
62c476c7 | 545 | static inline int kvm_iommu_map_pages(struct kvm *kvm, |
d7a79b6c | 546 | struct kvm_memory_slot *slot) |
62c476c7 BAY |
547 | { |
548 | return 0; | |
549 | } | |
550 | ||
260782bc | 551 | static inline int kvm_iommu_map_guest(struct kvm *kvm) |
62c476c7 BAY |
552 | { |
553 | return -ENODEV; | |
554 | } | |
555 | ||
556 | static inline int kvm_iommu_unmap_guest(struct kvm *kvm) | |
557 | { | |
558 | return 0; | |
559 | } | |
260782bc WH |
560 | |
561 | static inline int kvm_assign_device(struct kvm *kvm, | |
562 | struct kvm_assigned_dev_kernel *assigned_dev) | |
563 | { | |
564 | return 0; | |
565 | } | |
0a920356 WH |
566 | |
567 | static inline int kvm_deassign_device(struct kvm *kvm, | |
568 | struct kvm_assigned_dev_kernel *assigned_dev) | |
569 | { | |
570 | return 0; | |
571 | } | |
19de40a8 | 572 | #endif /* CONFIG_IOMMU_API */ |
62c476c7 | 573 | |
d172fcd3 LV |
574 | static inline void kvm_guest_enter(void) |
575 | { | |
e56a7a28 | 576 | account_system_vtime(current); |
d172fcd3 LV |
577 | current->flags |= PF_VCPU; |
578 | } | |
579 | ||
580 | static inline void kvm_guest_exit(void) | |
581 | { | |
e56a7a28 | 582 | account_system_vtime(current); |
d172fcd3 LV |
583 | current->flags &= ~PF_VCPU; |
584 | } | |
585 | ||
887c08ac XG |
586 | static inline unsigned long gfn_to_hva_memslot(struct kvm_memory_slot *slot, |
587 | gfn_t gfn) | |
588 | { | |
589 | return slot->userspace_addr + (gfn - slot->base_gfn) * PAGE_SIZE; | |
590 | } | |
591 | ||
1755fbcc AK |
592 | static inline gpa_t gfn_to_gpa(gfn_t gfn) |
593 | { | |
594 | return (gpa_t)gfn << PAGE_SHIFT; | |
595 | } | |
6aa8b732 | 596 | |
c30a358d JR |
597 | static inline gfn_t gpa_to_gfn(gpa_t gpa) |
598 | { | |
599 | return (gfn_t)(gpa >> PAGE_SHIFT); | |
600 | } | |
601 | ||
62c476c7 BAY |
602 | static inline hpa_t pfn_to_hpa(pfn_t pfn) |
603 | { | |
604 | return (hpa_t)pfn << PAGE_SHIFT; | |
605 | } | |
606 | ||
2f599714 | 607 | static inline void kvm_migrate_timers(struct kvm_vcpu *vcpu) |
2f52d58c AK |
608 | { |
609 | set_bit(KVM_REQ_MIGRATE_TIMER, &vcpu->requests); | |
610 | } | |
611 | ||
ba1389b7 AK |
612 | enum kvm_stat_kind { |
613 | KVM_STAT_VM, | |
614 | KVM_STAT_VCPU, | |
615 | }; | |
616 | ||
417bc304 HB |
617 | struct kvm_stats_debugfs_item { |
618 | const char *name; | |
619 | int offset; | |
ba1389b7 | 620 | enum kvm_stat_kind kind; |
417bc304 HB |
621 | struct dentry *dentry; |
622 | }; | |
623 | extern struct kvm_stats_debugfs_item debugfs_entries[]; | |
76f7c879 | 624 | extern struct dentry *kvm_debugfs_dir; |
d4c9ff2d | 625 | |
e930bffe AA |
626 | #ifdef KVM_ARCH_WANT_MMU_NOTIFIER |
627 | static inline int mmu_notifier_retry(struct kvm_vcpu *vcpu, unsigned long mmu_seq) | |
628 | { | |
629 | if (unlikely(vcpu->kvm->mmu_notifier_count)) | |
630 | return 1; | |
631 | /* | |
632 | * Both reads happen under the mmu_lock and both values are | |
633 | * modified under mmu_lock, so there's no need of smb_rmb() | |
634 | * here in between, otherwise mmu_notifier_count should be | |
635 | * read before mmu_notifier_seq, see | |
636 | * mmu_notifier_invalidate_range_end write side. | |
637 | */ | |
638 | if (vcpu->kvm->mmu_notifier_seq != mmu_seq) | |
639 | return 1; | |
640 | return 0; | |
641 | } | |
642 | #endif | |
643 | ||
399ec807 AK |
644 | #ifdef CONFIG_HAVE_KVM_IRQCHIP |
645 | ||
646 | #define KVM_MAX_IRQ_ROUTES 1024 | |
647 | ||
648 | int kvm_setup_default_irq_routing(struct kvm *kvm); | |
649 | int kvm_set_irq_routing(struct kvm *kvm, | |
650 | const struct kvm_irq_routing_entry *entries, | |
651 | unsigned nr, | |
652 | unsigned flags); | |
653 | void kvm_free_irq_routing(struct kvm *kvm); | |
654 | ||
655 | #else | |
656 | ||
657 | static inline void kvm_free_irq_routing(struct kvm *kvm) {} | |
658 | ||
659 | #endif | |
660 | ||
721eecbf GH |
661 | #ifdef CONFIG_HAVE_KVM_EVENTFD |
662 | ||
d34e6b17 | 663 | void kvm_eventfd_init(struct kvm *kvm); |
721eecbf GH |
664 | int kvm_irqfd(struct kvm *kvm, int fd, int gsi, int flags); |
665 | void kvm_irqfd_release(struct kvm *kvm); | |
bd2b53b2 | 666 | void kvm_irq_routing_update(struct kvm *, struct kvm_irq_routing_table *); |
d34e6b17 | 667 | int kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args); |
721eecbf GH |
668 | |
669 | #else | |
670 | ||
d34e6b17 | 671 | static inline void kvm_eventfd_init(struct kvm *kvm) {} |
bd2b53b2 | 672 | |
721eecbf GH |
673 | static inline int kvm_irqfd(struct kvm *kvm, int fd, int gsi, int flags) |
674 | { | |
675 | return -EINVAL; | |
676 | } | |
677 | ||
678 | static inline void kvm_irqfd_release(struct kvm *kvm) {} | |
bd2b53b2 | 679 | |
27923eb1 | 680 | #ifdef CONFIG_HAVE_KVM_IRQCHIP |
bd2b53b2 MT |
681 | static inline void kvm_irq_routing_update(struct kvm *kvm, |
682 | struct kvm_irq_routing_table *irq_rt) | |
683 | { | |
684 | rcu_assign_pointer(kvm->irq_routing, irq_rt); | |
685 | } | |
27923eb1 | 686 | #endif |
bd2b53b2 | 687 | |
d34e6b17 GH |
688 | static inline int kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args) |
689 | { | |
690 | return -ENOSYS; | |
691 | } | |
721eecbf GH |
692 | |
693 | #endif /* CONFIG_HAVE_KVM_EVENTFD */ | |
694 | ||
73880c80 | 695 | #ifdef CONFIG_KVM_APIC_ARCHITECTURE |
c5af89b6 GN |
696 | static inline bool kvm_vcpu_is_bsp(struct kvm_vcpu *vcpu) |
697 | { | |
d3efc8ef | 698 | return vcpu->kvm->bsp_vcpu_id == vcpu->vcpu_id; |
c5af89b6 | 699 | } |
6aa8b732 | 700 | #endif |
bfd99ff5 AK |
701 | |
702 | #ifdef __KVM_HAVE_DEVICE_ASSIGNMENT | |
703 | ||
704 | long kvm_vm_ioctl_assigned_device(struct kvm *kvm, unsigned ioctl, | |
705 | unsigned long arg); | |
706 | ||
707 | #else | |
708 | ||
709 | static inline long kvm_vm_ioctl_assigned_device(struct kvm *kvm, unsigned ioctl, | |
710 | unsigned long arg) | |
711 | { | |
712 | return -ENOTTY; | |
713 | } | |
714 | ||
73880c80 | 715 | #endif |
bfd99ff5 | 716 | |
a8eeb04a AK |
717 | static inline void kvm_make_request(int req, struct kvm_vcpu *vcpu) |
718 | { | |
719 | set_bit(req, &vcpu->requests); | |
720 | } | |
721 | ||
722 | static inline bool kvm_make_check_request(int req, struct kvm_vcpu *vcpu) | |
723 | { | |
724 | return test_and_set_bit(req, &vcpu->requests); | |
725 | } | |
726 | ||
727 | static inline bool kvm_check_request(int req, struct kvm_vcpu *vcpu) | |
728 | { | |
0719837c AK |
729 | if (test_bit(req, &vcpu->requests)) { |
730 | clear_bit(req, &vcpu->requests); | |
731 | return true; | |
732 | } else { | |
733 | return false; | |
734 | } | |
a8eeb04a AK |
735 | } |
736 | ||
bfd99ff5 AK |
737 | #endif |
738 |