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> | |
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 | ||
6b7e2d09 XG |
101 | enum { |
102 | OUTSIDE_GUEST_MODE, | |
103 | IN_GUEST_MODE, | |
104 | EXITING_GUEST_MODE | |
105 | }; | |
106 | ||
d17fbbf7 ZX |
107 | struct kvm_vcpu { |
108 | struct kvm *kvm; | |
31bb117e | 109 | #ifdef CONFIG_PREEMPT_NOTIFIERS |
d17fbbf7 | 110 | struct preempt_notifier preempt_notifier; |
31bb117e | 111 | #endif |
6b7e2d09 | 112 | int cpu; |
d17fbbf7 | 113 | int vcpu_id; |
6b7e2d09 XG |
114 | int srcu_idx; |
115 | int mode; | |
d17fbbf7 | 116 | unsigned long requests; |
d0bfb940 | 117 | unsigned long guest_debug; |
6b7e2d09 XG |
118 | |
119 | struct mutex mutex; | |
120 | struct kvm_run *run; | |
f656ce01 | 121 | |
d17fbbf7 | 122 | int fpu_active; |
2acf923e | 123 | int guest_fpu_loaded, guest_xcr0_loaded; |
d17fbbf7 | 124 | wait_queue_head_t wq; |
34bb10b7 | 125 | struct pid *pid; |
d17fbbf7 ZX |
126 | int sigset_active; |
127 | sigset_t sigset; | |
128 | struct kvm_vcpu_stat stat; | |
129 | ||
34c16eec | 130 | #ifdef CONFIG_HAS_IOMEM |
d17fbbf7 ZX |
131 | int mmio_needed; |
132 | int mmio_read_completed; | |
133 | int mmio_is_write; | |
134 | int mmio_size; | |
135 | unsigned char mmio_data[8]; | |
6aa8b732 | 136 | gpa_t mmio_phys_addr; |
34c16eec | 137 | #endif |
1165f5fe | 138 | |
af585b92 GN |
139 | #ifdef CONFIG_KVM_ASYNC_PF |
140 | struct { | |
141 | u32 queued; | |
142 | struct list_head queue; | |
143 | struct list_head done; | |
144 | spinlock_t lock; | |
145 | } async_pf; | |
146 | #endif | |
147 | ||
d657a98e ZX |
148 | struct kvm_vcpu_arch arch; |
149 | }; | |
150 | ||
6b7e2d09 XG |
151 | static inline int kvm_vcpu_exiting_guest_mode(struct kvm_vcpu *vcpu) |
152 | { | |
153 | return cmpxchg(&vcpu->mode, IN_GUEST_MODE, EXITING_GUEST_MODE); | |
154 | } | |
155 | ||
660c22c4 TY |
156 | /* |
157 | * Some of the bitops functions do not support too long bitmaps. | |
158 | * This number must be determined not to exceed such limits. | |
159 | */ | |
160 | #define KVM_MEM_MAX_NR_PAGES ((1UL << 31) - 1) | |
161 | ||
d4dbf470 TY |
162 | struct kvm_lpage_info { |
163 | unsigned long rmap_pde; | |
164 | int write_count; | |
165 | }; | |
166 | ||
6aa8b732 AK |
167 | struct kvm_memory_slot { |
168 | gfn_t base_gfn; | |
169 | unsigned long npages; | |
170 | unsigned long flags; | |
290fc38d | 171 | unsigned long *rmap; |
6aa8b732 | 172 | unsigned long *dirty_bitmap; |
515a0127 | 173 | unsigned long *dirty_bitmap_head; |
d4dbf470 | 174 | struct kvm_lpage_info *lpage_info[KVM_NR_PAGE_SIZES - 1]; |
8a7ae055 | 175 | unsigned long userspace_addr; |
80b14b5b | 176 | int user_alloc; |
e36d96f7 | 177 | int id; |
6aa8b732 AK |
178 | }; |
179 | ||
87bf6e7d TY |
180 | static inline unsigned long kvm_dirty_bitmap_bytes(struct kvm_memory_slot *memslot) |
181 | { | |
182 | return ALIGN(memslot->npages, BITS_PER_LONG) / 8; | |
183 | } | |
184 | ||
399ec807 AK |
185 | struct kvm_kernel_irq_routing_entry { |
186 | u32 gsi; | |
5116d8f6 | 187 | u32 type; |
4925663a | 188 | int (*set)(struct kvm_kernel_irq_routing_entry *e, |
1a6e4a8c | 189 | struct kvm *kvm, int irq_source_id, int level); |
399ec807 AK |
190 | union { |
191 | struct { | |
192 | unsigned irqchip; | |
193 | unsigned pin; | |
194 | } irqchip; | |
79950e10 | 195 | struct msi_msg msi; |
399ec807 | 196 | }; |
46e624b9 GN |
197 | struct hlist_node link; |
198 | }; | |
199 | ||
3e71f88b GN |
200 | #ifdef __KVM_HAVE_IOAPIC |
201 | ||
46e624b9 | 202 | struct kvm_irq_routing_table { |
3e71f88b | 203 | int chip[KVM_NR_IRQCHIPS][KVM_IOAPIC_NUM_PINS]; |
46e624b9 GN |
204 | struct kvm_kernel_irq_routing_entry *rt_entries; |
205 | u32 nr_rt_entries; | |
206 | /* | |
207 | * Array indexed by gsi. Each entry contains list of irq chips | |
208 | * the gsi is connected to. | |
209 | */ | |
210 | struct hlist_head map[0]; | |
399ec807 AK |
211 | }; |
212 | ||
3e71f88b GN |
213 | #else |
214 | ||
215 | struct kvm_irq_routing_table {}; | |
216 | ||
217 | #endif | |
218 | ||
46a26bf5 MT |
219 | struct kvm_memslots { |
220 | int nmemslots; | |
49c7754c | 221 | u64 generation; |
46a26bf5 MT |
222 | struct kvm_memory_slot memslots[KVM_MEMORY_SLOTS + |
223 | KVM_PRIVATE_MEM_SLOTS]; | |
224 | }; | |
225 | ||
6aa8b732 | 226 | struct kvm { |
aaee2c94 | 227 | spinlock_t mmu_lock; |
79fac95e | 228 | struct mutex slots_lock; |
6d4e4c4f | 229 | struct mm_struct *mm; /* userspace tied to this vm */ |
46a26bf5 | 230 | struct kvm_memslots *memslots; |
bc6678a3 | 231 | struct srcu_struct srcu; |
73880c80 GN |
232 | #ifdef CONFIG_KVM_APIC_ARCHITECTURE |
233 | u32 bsp_vcpu_id; | |
c5af89b6 | 234 | struct kvm_vcpu *bsp_vcpu; |
73880c80 | 235 | #endif |
fb3f0f51 | 236 | struct kvm_vcpu *vcpus[KVM_MAX_VCPUS]; |
73880c80 | 237 | atomic_t online_vcpus; |
133de902 | 238 | struct list_head vm_list; |
60eead79 | 239 | struct mutex lock; |
e93f8a0f | 240 | struct kvm_io_bus *buses[KVM_NR_BUSES]; |
721eecbf GH |
241 | #ifdef CONFIG_HAVE_KVM_EVENTFD |
242 | struct { | |
243 | spinlock_t lock; | |
244 | struct list_head items; | |
245 | } irqfds; | |
d34e6b17 | 246 | struct list_head ioeventfds; |
721eecbf | 247 | #endif |
ba1389b7 | 248 | struct kvm_vm_stat stat; |
d69fb81f | 249 | struct kvm_arch arch; |
d39f13b0 | 250 | atomic_t users_count; |
5f94c174 LV |
251 | #ifdef KVM_COALESCED_MMIO_PAGE_OFFSET |
252 | struct kvm_coalesced_mmio_dev *coalesced_mmio_dev; | |
253 | struct kvm_coalesced_mmio_ring *coalesced_mmio_ring; | |
254 | #endif | |
e930bffe | 255 | |
60eead79 | 256 | struct mutex irq_lock; |
75858a84 | 257 | #ifdef CONFIG_HAVE_KVM_IRQCHIP |
bd2b53b2 MT |
258 | /* |
259 | * Update side is protected by irq_lock and, | |
260 | * if configured, irqfds.lock. | |
261 | */ | |
4b6a2872 | 262 | struct kvm_irq_routing_table __rcu *irq_routing; |
75858a84 | 263 | struct hlist_head mask_notifier_list; |
136bdfee | 264 | struct hlist_head irq_ack_notifier_list; |
75858a84 AK |
265 | #endif |
266 | ||
e930bffe AA |
267 | #ifdef KVM_ARCH_WANT_MMU_NOTIFIER |
268 | struct mmu_notifier mmu_notifier; | |
269 | unsigned long mmu_notifier_seq; | |
270 | long mmu_notifier_count; | |
271 | #endif | |
5c663a15 | 272 | long tlbs_dirty; |
6aa8b732 AK |
273 | }; |
274 | ||
f0242478 RR |
275 | /* The guest did something we don't support. */ |
276 | #define pr_unimpl(vcpu, fmt, ...) \ | |
277 | do { \ | |
278 | if (printk_ratelimit()) \ | |
279 | printk(KERN_ERR "kvm: %i: cpu%i " fmt, \ | |
280 | current->tgid, (vcpu)->vcpu_id , ## __VA_ARGS__); \ | |
d77c26fc | 281 | } while (0) |
f0242478 | 282 | |
6aa8b732 AK |
283 | #define kvm_printf(kvm, fmt ...) printk(KERN_DEBUG fmt) |
284 | #define vcpu_printf(vcpu, fmt...) kvm_printf(vcpu->kvm, fmt) | |
285 | ||
988a2cae GN |
286 | static inline struct kvm_vcpu *kvm_get_vcpu(struct kvm *kvm, int i) |
287 | { | |
288 | smp_rmb(); | |
289 | return kvm->vcpus[i]; | |
290 | } | |
291 | ||
292 | #define kvm_for_each_vcpu(idx, vcpup, kvm) \ | |
293 | for (idx = 0, vcpup = kvm_get_vcpu(kvm, idx); \ | |
294 | idx < atomic_read(&kvm->online_vcpus) && vcpup; \ | |
295 | vcpup = kvm_get_vcpu(kvm, ++idx)) | |
296 | ||
fb3f0f51 RR |
297 | int kvm_vcpu_init(struct kvm_vcpu *vcpu, struct kvm *kvm, unsigned id); |
298 | void kvm_vcpu_uninit(struct kvm_vcpu *vcpu); | |
299 | ||
313a3dc7 CO |
300 | void vcpu_load(struct kvm_vcpu *vcpu); |
301 | void vcpu_put(struct kvm_vcpu *vcpu); | |
302 | ||
0ee75bea | 303 | int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align, |
c16f862d | 304 | struct module *module); |
cb498ea2 | 305 | void kvm_exit(void); |
6aa8b732 | 306 | |
d39f13b0 IE |
307 | void kvm_get_kvm(struct kvm *kvm); |
308 | void kvm_put_kvm(struct kvm *kvm); | |
309 | ||
90d83dc3 LJ |
310 | static inline struct kvm_memslots *kvm_memslots(struct kvm *kvm) |
311 | { | |
312 | return rcu_dereference_check(kvm->memslots, | |
313 | srcu_read_lock_held(&kvm->srcu) | |
314 | || lockdep_is_held(&kvm->slots_lock)); | |
315 | } | |
316 | ||
6aa8b732 AK |
317 | #define HPA_MSB ((sizeof(hpa_t) * 8) - 1) |
318 | #define HPA_ERR_MASK ((hpa_t)1 << HPA_MSB) | |
319 | static inline int is_error_hpa(hpa_t hpa) { return hpa >> HPA_MSB; } | |
6aa8b732 | 320 | |
cea7bb21 | 321 | extern struct page *bad_page; |
35149e21 | 322 | extern pfn_t bad_pfn; |
6aa8b732 | 323 | |
cea7bb21 | 324 | int is_error_page(struct page *page); |
35149e21 | 325 | int is_error_pfn(pfn_t pfn); |
bf998156 | 326 | int is_hwpoison_pfn(pfn_t pfn); |
edba23e5 | 327 | int is_fault_pfn(pfn_t pfn); |
f9d46eb0 | 328 | int kvm_is_error_hva(unsigned long addr); |
210c7c4d IE |
329 | int kvm_set_memory_region(struct kvm *kvm, |
330 | struct kvm_userspace_memory_region *mem, | |
331 | int user_alloc); | |
f78e0e2e SY |
332 | int __kvm_set_memory_region(struct kvm *kvm, |
333 | struct kvm_userspace_memory_region *mem, | |
334 | int user_alloc); | |
f7784b8e MT |
335 | int kvm_arch_prepare_memory_region(struct kvm *kvm, |
336 | struct kvm_memory_slot *memslot, | |
337 | struct kvm_memory_slot old, | |
338 | struct kvm_userspace_memory_region *mem, | |
339 | int user_alloc); | |
340 | void kvm_arch_commit_memory_region(struct kvm *kvm, | |
0de10343 ZX |
341 | struct kvm_userspace_memory_region *mem, |
342 | struct kvm_memory_slot old, | |
343 | int user_alloc); | |
54dee993 | 344 | void kvm_disable_largepages(void); |
34d4cb8f | 345 | void kvm_arch_flush_shadow(struct kvm *kvm); |
a983fb23 | 346 | |
48987781 XG |
347 | int gfn_to_page_many_atomic(struct kvm *kvm, gfn_t gfn, struct page **pages, |
348 | int nr_pages); | |
349 | ||
954bbbc2 | 350 | struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn); |
05da4558 | 351 | unsigned long gfn_to_hva(struct kvm *kvm, gfn_t gfn); |
b4231d61 IE |
352 | void kvm_release_page_clean(struct page *page); |
353 | void kvm_release_page_dirty(struct page *page); | |
35149e21 AL |
354 | void kvm_set_page_dirty(struct page *page); |
355 | void kvm_set_page_accessed(struct page *page); | |
356 | ||
887c08ac | 357 | pfn_t hva_to_pfn_atomic(struct kvm *kvm, unsigned long addr); |
365fb3fd | 358 | pfn_t gfn_to_pfn_atomic(struct kvm *kvm, gfn_t gfn); |
612819c3 MT |
359 | pfn_t gfn_to_pfn_async(struct kvm *kvm, gfn_t gfn, bool *async, |
360 | bool write_fault, bool *writable); | |
35149e21 | 361 | pfn_t gfn_to_pfn(struct kvm *kvm, gfn_t gfn); |
612819c3 MT |
362 | pfn_t gfn_to_pfn_prot(struct kvm *kvm, gfn_t gfn, bool write_fault, |
363 | bool *writable); | |
506f0d6f MT |
364 | pfn_t gfn_to_pfn_memslot(struct kvm *kvm, |
365 | struct kvm_memory_slot *slot, gfn_t gfn); | |
bc6678a3 | 366 | int memslot_id(struct kvm *kvm, gfn_t gfn); |
35149e21 AL |
367 | void kvm_release_pfn_dirty(pfn_t); |
368 | void kvm_release_pfn_clean(pfn_t pfn); | |
369 | void kvm_set_pfn_dirty(pfn_t pfn); | |
370 | void kvm_set_pfn_accessed(pfn_t pfn); | |
371 | void kvm_get_pfn(pfn_t pfn); | |
372 | ||
195aefde IE |
373 | int kvm_read_guest_page(struct kvm *kvm, gfn_t gfn, void *data, int offset, |
374 | int len); | |
7ec54588 MT |
375 | int kvm_read_guest_atomic(struct kvm *kvm, gpa_t gpa, void *data, |
376 | unsigned long len); | |
195aefde IE |
377 | int kvm_read_guest(struct kvm *kvm, gpa_t gpa, void *data, unsigned long len); |
378 | int kvm_write_guest_page(struct kvm *kvm, gfn_t gfn, const void *data, | |
379 | int offset, int len); | |
380 | int kvm_write_guest(struct kvm *kvm, gpa_t gpa, const void *data, | |
381 | unsigned long len); | |
49c7754c GN |
382 | int kvm_write_guest_cached(struct kvm *kvm, struct gfn_to_hva_cache *ghc, |
383 | void *data, unsigned long len); | |
384 | int kvm_gfn_to_hva_cache_init(struct kvm *kvm, struct gfn_to_hva_cache *ghc, | |
385 | gpa_t gpa); | |
195aefde IE |
386 | int kvm_clear_guest_page(struct kvm *kvm, gfn_t gfn, int offset, int len); |
387 | int kvm_clear_guest(struct kvm *kvm, gpa_t gpa, unsigned long len); | |
6aa8b732 | 388 | struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn); |
e0d62c7f | 389 | int kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn); |
8f0b1ab6 | 390 | unsigned long kvm_host_page_size(struct kvm *kvm, gfn_t gfn); |
6aa8b732 | 391 | void mark_page_dirty(struct kvm *kvm, gfn_t gfn); |
49c7754c GN |
392 | void mark_page_dirty_in_slot(struct kvm *kvm, struct kvm_memory_slot *memslot, |
393 | gfn_t gfn); | |
6aa8b732 | 394 | |
8776e519 | 395 | void kvm_vcpu_block(struct kvm_vcpu *vcpu); |
d255f4f2 | 396 | void kvm_vcpu_on_spin(struct kvm_vcpu *vcpu); |
6aa8b732 | 397 | void kvm_resched(struct kvm_vcpu *vcpu); |
7702fd1f AK |
398 | void kvm_load_guest_fpu(struct kvm_vcpu *vcpu); |
399 | void kvm_put_guest_fpu(struct kvm_vcpu *vcpu); | |
a4ee1ca4 | 400 | |
d9e368d6 | 401 | void kvm_flush_remote_tlbs(struct kvm *kvm); |
2e53d63a | 402 | void kvm_reload_remote_mmus(struct kvm *kvm); |
6aa8b732 | 403 | |
043405e1 CO |
404 | long kvm_arch_dev_ioctl(struct file *filp, |
405 | unsigned int ioctl, unsigned long arg); | |
313a3dc7 CO |
406 | long kvm_arch_vcpu_ioctl(struct file *filp, |
407 | unsigned int ioctl, unsigned long arg); | |
018d00d2 ZX |
408 | |
409 | int kvm_dev_ioctl_check_extension(long ext); | |
410 | ||
5bb064dc ZX |
411 | int kvm_get_dirty_log(struct kvm *kvm, |
412 | struct kvm_dirty_log *log, int *is_dirty); | |
413 | int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, | |
414 | struct kvm_dirty_log *log); | |
415 | ||
1fe779f8 CO |
416 | int kvm_vm_ioctl_set_memory_region(struct kvm *kvm, |
417 | struct | |
418 | kvm_userspace_memory_region *mem, | |
419 | int user_alloc); | |
420 | long kvm_arch_vm_ioctl(struct file *filp, | |
421 | unsigned int ioctl, unsigned long arg); | |
313a3dc7 | 422 | |
d0752060 HB |
423 | int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu); |
424 | int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu); | |
425 | ||
8b006791 ZX |
426 | int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu, |
427 | struct kvm_translation *tr); | |
428 | ||
b6c7a5dc HB |
429 | int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs); |
430 | int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs); | |
431 | int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu, | |
432 | struct kvm_sregs *sregs); | |
433 | int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu, | |
434 | struct kvm_sregs *sregs); | |
62d9f0db MT |
435 | int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu, |
436 | struct kvm_mp_state *mp_state); | |
437 | int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, | |
438 | struct kvm_mp_state *mp_state); | |
d0bfb940 JK |
439 | int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu, |
440 | struct kvm_guest_debug *dbg); | |
b6c7a5dc HB |
441 | int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run); |
442 | ||
f8c16bba ZX |
443 | int kvm_arch_init(void *opaque); |
444 | void kvm_arch_exit(void); | |
043405e1 | 445 | |
e9b11c17 ZX |
446 | int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu); |
447 | void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu); | |
448 | ||
449 | void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu); | |
450 | void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu); | |
451 | void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu); | |
452 | struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id); | |
26e5215f | 453 | int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu); |
d40ccc62 | 454 | void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu); |
e9b11c17 ZX |
455 | |
456 | int kvm_arch_vcpu_reset(struct kvm_vcpu *vcpu); | |
10474ae8 | 457 | int kvm_arch_hardware_enable(void *garbage); |
e9b11c17 ZX |
458 | void kvm_arch_hardware_disable(void *garbage); |
459 | int kvm_arch_hardware_setup(void); | |
460 | void kvm_arch_hardware_unsetup(void); | |
461 | void kvm_arch_check_processor_compat(void *rtn); | |
1d737c8a | 462 | int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu); |
e9b11c17 | 463 | |
d19a9cd2 ZX |
464 | void kvm_free_physmem(struct kvm *kvm); |
465 | ||
d89f5eff JK |
466 | #ifndef __KVM_HAVE_ARCH_VM_ALLOC |
467 | static inline struct kvm *kvm_arch_alloc_vm(void) | |
468 | { | |
469 | return kzalloc(sizeof(struct kvm), GFP_KERNEL); | |
470 | } | |
471 | ||
472 | static inline void kvm_arch_free_vm(struct kvm *kvm) | |
473 | { | |
474 | kfree(kvm); | |
475 | } | |
476 | #endif | |
477 | ||
478 | int kvm_arch_init_vm(struct kvm *kvm); | |
d19a9cd2 | 479 | void kvm_arch_destroy_vm(struct kvm *kvm); |
8a98f664 | 480 | void kvm_free_all_assigned_devices(struct kvm *kvm); |
ad8ba2cd | 481 | void kvm_arch_sync_events(struct kvm *kvm); |
e9b11c17 | 482 | |
3d80840d | 483 | int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu); |
5736199a | 484 | void kvm_vcpu_kick(struct kvm_vcpu *vcpu); |
682c59a3 | 485 | |
c77fb9dc XZ |
486 | int kvm_is_mmio_pfn(pfn_t pfn); |
487 | ||
62c476c7 BAY |
488 | struct kvm_irq_ack_notifier { |
489 | struct hlist_node link; | |
490 | unsigned gsi; | |
491 | void (*irq_acked)(struct kvm_irq_ack_notifier *kian); | |
492 | }; | |
493 | ||
494 | struct kvm_assigned_dev_kernel { | |
495 | struct kvm_irq_ack_notifier ack_notifier; | |
62c476c7 BAY |
496 | struct list_head list; |
497 | int assigned_dev_id; | |
ab9f4ecb | 498 | int host_segnr; |
62c476c7 BAY |
499 | int host_busnr; |
500 | int host_devfn; | |
c1e01514 | 501 | unsigned int entries_nr; |
62c476c7 | 502 | int host_irq; |
defaf158 | 503 | bool host_irq_disabled; |
c1e01514 | 504 | struct msix_entry *host_msix_entries; |
62c476c7 | 505 | int guest_irq; |
0645211c | 506 | struct msix_entry *guest_msix_entries; |
4f906c19 | 507 | unsigned long irq_requested_type; |
5550af4d | 508 | int irq_source_id; |
b653574a | 509 | int flags; |
62c476c7 BAY |
510 | struct pci_dev *dev; |
511 | struct kvm *kvm; | |
0645211c | 512 | spinlock_t intx_lock; |
1e001d49 | 513 | char irq_name[32]; |
62c476c7 | 514 | }; |
75858a84 AK |
515 | |
516 | struct kvm_irq_mask_notifier { | |
517 | void (*func)(struct kvm_irq_mask_notifier *kimn, bool masked); | |
518 | int irq; | |
519 | struct hlist_node link; | |
520 | }; | |
521 | ||
522 | void kvm_register_irq_mask_notifier(struct kvm *kvm, int irq, | |
523 | struct kvm_irq_mask_notifier *kimn); | |
524 | void kvm_unregister_irq_mask_notifier(struct kvm *kvm, int irq, | |
525 | struct kvm_irq_mask_notifier *kimn); | |
4a994358 GN |
526 | void kvm_fire_mask_notifiers(struct kvm *kvm, unsigned irqchip, unsigned pin, |
527 | bool mask); | |
75858a84 | 528 | |
46e624b9 GN |
529 | #ifdef __KVM_HAVE_IOAPIC |
530 | void kvm_get_intr_delivery_bitmask(struct kvm_ioapic *ioapic, | |
531 | union kvm_ioapic_redirect_entry *entry, | |
532 | unsigned long *deliver_bitmask); | |
533 | #endif | |
534 | int kvm_set_irq(struct kvm *kvm, int irq_source_id, u32 irq, int level); | |
bd2b53b2 MT |
535 | int kvm_set_msi(struct kvm_kernel_irq_routing_entry *irq_entry, struct kvm *kvm, |
536 | int irq_source_id, int level); | |
44882eed | 537 | void kvm_notify_acked_irq(struct kvm *kvm, unsigned irqchip, unsigned pin); |
3de42dc0 XZ |
538 | void kvm_register_irq_ack_notifier(struct kvm *kvm, |
539 | struct kvm_irq_ack_notifier *kian); | |
fa40a821 MT |
540 | void kvm_unregister_irq_ack_notifier(struct kvm *kvm, |
541 | struct kvm_irq_ack_notifier *kian); | |
5550af4d SY |
542 | int kvm_request_irq_source_id(struct kvm *kvm); |
543 | void kvm_free_irq_source_id(struct kvm *kvm, int irq_source_id); | |
62c476c7 | 544 | |
522c68c4 SY |
545 | /* For vcpu->arch.iommu_flags */ |
546 | #define KVM_IOMMU_CACHE_COHERENCY 0x1 | |
547 | ||
19de40a8 | 548 | #ifdef CONFIG_IOMMU_API |
3ad26d81 | 549 | int kvm_iommu_map_pages(struct kvm *kvm, struct kvm_memory_slot *slot); |
260782bc | 550 | int kvm_iommu_map_guest(struct kvm *kvm); |
62c476c7 | 551 | int kvm_iommu_unmap_guest(struct kvm *kvm); |
260782bc WH |
552 | int kvm_assign_device(struct kvm *kvm, |
553 | struct kvm_assigned_dev_kernel *assigned_dev); | |
0a920356 WH |
554 | int kvm_deassign_device(struct kvm *kvm, |
555 | struct kvm_assigned_dev_kernel *assigned_dev); | |
19de40a8 | 556 | #else /* CONFIG_IOMMU_API */ |
62c476c7 | 557 | static inline int kvm_iommu_map_pages(struct kvm *kvm, |
d7a79b6c | 558 | struct kvm_memory_slot *slot) |
62c476c7 BAY |
559 | { |
560 | return 0; | |
561 | } | |
562 | ||
260782bc | 563 | static inline int kvm_iommu_map_guest(struct kvm *kvm) |
62c476c7 BAY |
564 | { |
565 | return -ENODEV; | |
566 | } | |
567 | ||
568 | static inline int kvm_iommu_unmap_guest(struct kvm *kvm) | |
569 | { | |
570 | return 0; | |
571 | } | |
260782bc WH |
572 | |
573 | static inline int kvm_assign_device(struct kvm *kvm, | |
574 | struct kvm_assigned_dev_kernel *assigned_dev) | |
575 | { | |
576 | return 0; | |
577 | } | |
0a920356 WH |
578 | |
579 | static inline int kvm_deassign_device(struct kvm *kvm, | |
580 | struct kvm_assigned_dev_kernel *assigned_dev) | |
581 | { | |
582 | return 0; | |
583 | } | |
19de40a8 | 584 | #endif /* CONFIG_IOMMU_API */ |
62c476c7 | 585 | |
d172fcd3 LV |
586 | static inline void kvm_guest_enter(void) |
587 | { | |
e56a7a28 | 588 | account_system_vtime(current); |
d172fcd3 LV |
589 | current->flags |= PF_VCPU; |
590 | } | |
591 | ||
592 | static inline void kvm_guest_exit(void) | |
593 | { | |
e56a7a28 | 594 | account_system_vtime(current); |
d172fcd3 LV |
595 | current->flags &= ~PF_VCPU; |
596 | } | |
597 | ||
887c08ac XG |
598 | static inline unsigned long gfn_to_hva_memslot(struct kvm_memory_slot *slot, |
599 | gfn_t gfn) | |
600 | { | |
601 | return slot->userspace_addr + (gfn - slot->base_gfn) * PAGE_SIZE; | |
602 | } | |
603 | ||
1755fbcc AK |
604 | static inline gpa_t gfn_to_gpa(gfn_t gfn) |
605 | { | |
606 | return (gpa_t)gfn << PAGE_SHIFT; | |
607 | } | |
6aa8b732 | 608 | |
c30a358d JR |
609 | static inline gfn_t gpa_to_gfn(gpa_t gpa) |
610 | { | |
611 | return (gfn_t)(gpa >> PAGE_SHIFT); | |
612 | } | |
613 | ||
62c476c7 BAY |
614 | static inline hpa_t pfn_to_hpa(pfn_t pfn) |
615 | { | |
616 | return (hpa_t)pfn << PAGE_SHIFT; | |
617 | } | |
618 | ||
2f599714 | 619 | static inline void kvm_migrate_timers(struct kvm_vcpu *vcpu) |
2f52d58c AK |
620 | { |
621 | set_bit(KVM_REQ_MIGRATE_TIMER, &vcpu->requests); | |
622 | } | |
623 | ||
ba1389b7 AK |
624 | enum kvm_stat_kind { |
625 | KVM_STAT_VM, | |
626 | KVM_STAT_VCPU, | |
627 | }; | |
628 | ||
417bc304 HB |
629 | struct kvm_stats_debugfs_item { |
630 | const char *name; | |
631 | int offset; | |
ba1389b7 | 632 | enum kvm_stat_kind kind; |
417bc304 HB |
633 | struct dentry *dentry; |
634 | }; | |
635 | extern struct kvm_stats_debugfs_item debugfs_entries[]; | |
76f7c879 | 636 | extern struct dentry *kvm_debugfs_dir; |
d4c9ff2d | 637 | |
e930bffe AA |
638 | #ifdef KVM_ARCH_WANT_MMU_NOTIFIER |
639 | static inline int mmu_notifier_retry(struct kvm_vcpu *vcpu, unsigned long mmu_seq) | |
640 | { | |
641 | if (unlikely(vcpu->kvm->mmu_notifier_count)) | |
642 | return 1; | |
643 | /* | |
644 | * Both reads happen under the mmu_lock and both values are | |
645 | * modified under mmu_lock, so there's no need of smb_rmb() | |
646 | * here in between, otherwise mmu_notifier_count should be | |
647 | * read before mmu_notifier_seq, see | |
648 | * mmu_notifier_invalidate_range_end write side. | |
649 | */ | |
650 | if (vcpu->kvm->mmu_notifier_seq != mmu_seq) | |
651 | return 1; | |
652 | return 0; | |
653 | } | |
654 | #endif | |
655 | ||
399ec807 AK |
656 | #ifdef CONFIG_HAVE_KVM_IRQCHIP |
657 | ||
658 | #define KVM_MAX_IRQ_ROUTES 1024 | |
659 | ||
660 | int kvm_setup_default_irq_routing(struct kvm *kvm); | |
661 | int kvm_set_irq_routing(struct kvm *kvm, | |
662 | const struct kvm_irq_routing_entry *entries, | |
663 | unsigned nr, | |
664 | unsigned flags); | |
665 | void kvm_free_irq_routing(struct kvm *kvm); | |
666 | ||
667 | #else | |
668 | ||
669 | static inline void kvm_free_irq_routing(struct kvm *kvm) {} | |
670 | ||
671 | #endif | |
672 | ||
721eecbf GH |
673 | #ifdef CONFIG_HAVE_KVM_EVENTFD |
674 | ||
d34e6b17 | 675 | void kvm_eventfd_init(struct kvm *kvm); |
721eecbf GH |
676 | int kvm_irqfd(struct kvm *kvm, int fd, int gsi, int flags); |
677 | void kvm_irqfd_release(struct kvm *kvm); | |
bd2b53b2 | 678 | void kvm_irq_routing_update(struct kvm *, struct kvm_irq_routing_table *); |
d34e6b17 | 679 | int kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args); |
721eecbf GH |
680 | |
681 | #else | |
682 | ||
d34e6b17 | 683 | static inline void kvm_eventfd_init(struct kvm *kvm) {} |
bd2b53b2 | 684 | |
721eecbf GH |
685 | static inline int kvm_irqfd(struct kvm *kvm, int fd, int gsi, int flags) |
686 | { | |
687 | return -EINVAL; | |
688 | } | |
689 | ||
690 | static inline void kvm_irqfd_release(struct kvm *kvm) {} | |
bd2b53b2 | 691 | |
27923eb1 | 692 | #ifdef CONFIG_HAVE_KVM_IRQCHIP |
bd2b53b2 MT |
693 | static inline void kvm_irq_routing_update(struct kvm *kvm, |
694 | struct kvm_irq_routing_table *irq_rt) | |
695 | { | |
696 | rcu_assign_pointer(kvm->irq_routing, irq_rt); | |
697 | } | |
27923eb1 | 698 | #endif |
bd2b53b2 | 699 | |
d34e6b17 GH |
700 | static inline int kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args) |
701 | { | |
702 | return -ENOSYS; | |
703 | } | |
721eecbf GH |
704 | |
705 | #endif /* CONFIG_HAVE_KVM_EVENTFD */ | |
706 | ||
73880c80 | 707 | #ifdef CONFIG_KVM_APIC_ARCHITECTURE |
c5af89b6 GN |
708 | static inline bool kvm_vcpu_is_bsp(struct kvm_vcpu *vcpu) |
709 | { | |
d3efc8ef | 710 | return vcpu->kvm->bsp_vcpu_id == vcpu->vcpu_id; |
c5af89b6 | 711 | } |
6aa8b732 | 712 | #endif |
bfd99ff5 AK |
713 | |
714 | #ifdef __KVM_HAVE_DEVICE_ASSIGNMENT | |
715 | ||
716 | long kvm_vm_ioctl_assigned_device(struct kvm *kvm, unsigned ioctl, | |
717 | unsigned long arg); | |
718 | ||
719 | #else | |
720 | ||
721 | static inline long kvm_vm_ioctl_assigned_device(struct kvm *kvm, unsigned ioctl, | |
722 | unsigned long arg) | |
723 | { | |
724 | return -ENOTTY; | |
725 | } | |
726 | ||
73880c80 | 727 | #endif |
bfd99ff5 | 728 | |
a8eeb04a AK |
729 | static inline void kvm_make_request(int req, struct kvm_vcpu *vcpu) |
730 | { | |
731 | set_bit(req, &vcpu->requests); | |
732 | } | |
733 | ||
a8eeb04a AK |
734 | static inline bool kvm_check_request(int req, struct kvm_vcpu *vcpu) |
735 | { | |
0719837c AK |
736 | if (test_bit(req, &vcpu->requests)) { |
737 | clear_bit(req, &vcpu->requests); | |
738 | return true; | |
739 | } else { | |
740 | return false; | |
741 | } | |
a8eeb04a AK |
742 | } |
743 | ||
bfd99ff5 AK |
744 | #endif |
745 |