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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> |
d4c9ff2d | 18 | #include <linux/marker.h> |
0937c48d | 19 | #include <linux/msi.h> |
e8edc6e0 | 20 | #include <asm/signal.h> |
6aa8b732 | 21 | |
6aa8b732 | 22 | #include <linux/kvm.h> |
102d8325 | 23 | #include <linux/kvm_para.h> |
6aa8b732 | 24 | |
edf88417 | 25 | #include <linux/kvm_types.h> |
d77a39d9 | 26 | |
edf88417 | 27 | #include <asm/kvm_host.h> |
d657a98e | 28 | |
d9e368d6 AK |
29 | /* |
30 | * vcpu->requests bit members | |
31 | */ | |
3176bc3e | 32 | #define KVM_REQ_TLB_FLUSH 0 |
2f52d58c | 33 | #define KVM_REQ_MIGRATE_TIMER 1 |
b209749f | 34 | #define KVM_REQ_REPORT_TPR_ACCESS 2 |
2e53d63a | 35 | #define KVM_REQ_MMU_RELOAD 3 |
71c4dfaf | 36 | #define KVM_REQ_TRIPLE_FAULT 4 |
06e05645 | 37 | #define KVM_REQ_PENDING_TIMER 5 |
d7690175 | 38 | #define KVM_REQ_UNHALT 6 |
4731d4c7 | 39 | #define KVM_REQ_MMU_SYNC 7 |
c8076604 | 40 | #define KVM_REQ_KVMCLOCK_UPDATE 8 |
32f88400 | 41 | #define KVM_REQ_KICK 9 |
6aa8b732 | 42 | |
5550af4d SY |
43 | #define KVM_USERSPACE_IRQ_SOURCE_ID 0 |
44 | ||
6aa8b732 | 45 | struct kvm_vcpu; |
c16f862d | 46 | extern struct kmem_cache *kvm_vcpu_cache; |
6aa8b732 | 47 | |
2eeb2e94 GH |
48 | /* |
49 | * It would be nice to use something smarter than a linear search, TBD... | |
50 | * Thankfully we dont expect many devices to register (famous last words :), | |
51 | * so until then it will suffice. At least its abstracted so we can change | |
52 | * in one place. | |
53 | */ | |
54 | struct kvm_io_bus { | |
55 | int dev_count; | |
56 | #define NR_IOBUS_DEVS 6 | |
57 | struct kvm_io_device *devs[NR_IOBUS_DEVS]; | |
58 | }; | |
59 | ||
60 | void kvm_io_bus_init(struct kvm_io_bus *bus); | |
61 | void kvm_io_bus_destroy(struct kvm_io_bus *bus); | |
92760499 LV |
62 | struct kvm_io_device *kvm_io_bus_find_dev(struct kvm_io_bus *bus, |
63 | gpa_t addr, int len, int is_write); | |
2eeb2e94 GH |
64 | void kvm_io_bus_register_dev(struct kvm_io_bus *bus, |
65 | struct kvm_io_device *dev); | |
66 | ||
d17fbbf7 ZX |
67 | struct kvm_vcpu { |
68 | struct kvm *kvm; | |
31bb117e | 69 | #ifdef CONFIG_PREEMPT_NOTIFIERS |
d17fbbf7 | 70 | struct preempt_notifier preempt_notifier; |
31bb117e | 71 | #endif |
d17fbbf7 ZX |
72 | int vcpu_id; |
73 | struct mutex mutex; | |
74 | int cpu; | |
75 | struct kvm_run *run; | |
d17fbbf7 | 76 | unsigned long requests; |
d0bfb940 | 77 | unsigned long guest_debug; |
d17fbbf7 ZX |
78 | int fpu_active; |
79 | int guest_fpu_loaded; | |
80 | wait_queue_head_t wq; | |
81 | int sigset_active; | |
82 | sigset_t sigset; | |
83 | struct kvm_vcpu_stat stat; | |
84 | ||
34c16eec | 85 | #ifdef CONFIG_HAS_IOMEM |
d17fbbf7 ZX |
86 | int mmio_needed; |
87 | int mmio_read_completed; | |
88 | int mmio_is_write; | |
89 | int mmio_size; | |
90 | unsigned char mmio_data[8]; | |
6aa8b732 | 91 | gpa_t mmio_phys_addr; |
34c16eec | 92 | #endif |
1165f5fe | 93 | |
d657a98e ZX |
94 | struct kvm_vcpu_arch arch; |
95 | }; | |
96 | ||
6aa8b732 AK |
97 | struct kvm_memory_slot { |
98 | gfn_t base_gfn; | |
99 | unsigned long npages; | |
100 | unsigned long flags; | |
290fc38d | 101 | unsigned long *rmap; |
6aa8b732 | 102 | unsigned long *dirty_bitmap; |
05da4558 MT |
103 | struct { |
104 | unsigned long rmap_pde; | |
105 | int write_count; | |
106 | } *lpage_info; | |
8a7ae055 | 107 | unsigned long userspace_addr; |
80b14b5b | 108 | int user_alloc; |
6aa8b732 AK |
109 | }; |
110 | ||
399ec807 AK |
111 | struct kvm_kernel_irq_routing_entry { |
112 | u32 gsi; | |
5116d8f6 | 113 | u32 type; |
4925663a | 114 | int (*set)(struct kvm_kernel_irq_routing_entry *e, |
399ec807 AK |
115 | struct kvm *kvm, int level); |
116 | union { | |
117 | struct { | |
118 | unsigned irqchip; | |
119 | unsigned pin; | |
120 | } irqchip; | |
79950e10 | 121 | struct msi_msg msi; |
399ec807 AK |
122 | }; |
123 | struct list_head link; | |
124 | }; | |
125 | ||
6aa8b732 | 126 | struct kvm { |
aaee2c94 | 127 | spinlock_t mmu_lock; |
84261923 | 128 | spinlock_t requests_lock; |
72dc67a6 | 129 | struct rw_semaphore slots_lock; |
6d4e4c4f | 130 | struct mm_struct *mm; /* userspace tied to this vm */ |
6aa8b732 | 131 | int nmemslots; |
e0d62c7f IE |
132 | struct kvm_memory_slot memslots[KVM_MEMORY_SLOTS + |
133 | KVM_PRIVATE_MEM_SLOTS]; | |
fb3f0f51 | 134 | struct kvm_vcpu *vcpus[KVM_MAX_VCPUS]; |
133de902 | 135 | struct list_head vm_list; |
60eead79 | 136 | struct mutex lock; |
2eeb2e94 | 137 | struct kvm_io_bus mmio_bus; |
74906345 | 138 | struct kvm_io_bus pio_bus; |
721eecbf GH |
139 | #ifdef CONFIG_HAVE_KVM_EVENTFD |
140 | struct { | |
141 | spinlock_t lock; | |
142 | struct list_head items; | |
143 | } irqfds; | |
144 | #endif | |
ba1389b7 | 145 | struct kvm_vm_stat stat; |
d69fb81f | 146 | struct kvm_arch arch; |
d39f13b0 | 147 | atomic_t users_count; |
5f94c174 LV |
148 | #ifdef KVM_COALESCED_MMIO_PAGE_OFFSET |
149 | struct kvm_coalesced_mmio_dev *coalesced_mmio_dev; | |
150 | struct kvm_coalesced_mmio_ring *coalesced_mmio_ring; | |
151 | #endif | |
e930bffe | 152 | |
60eead79 | 153 | struct mutex irq_lock; |
75858a84 | 154 | #ifdef CONFIG_HAVE_KVM_IRQCHIP |
399ec807 | 155 | struct list_head irq_routing; /* of kvm_kernel_irq_routing_entry */ |
75858a84 AK |
156 | struct hlist_head mask_notifier_list; |
157 | #endif | |
158 | ||
e930bffe AA |
159 | #ifdef KVM_ARCH_WANT_MMU_NOTIFIER |
160 | struct mmu_notifier mmu_notifier; | |
161 | unsigned long mmu_notifier_seq; | |
162 | long mmu_notifier_count; | |
163 | #endif | |
6aa8b732 AK |
164 | }; |
165 | ||
f0242478 RR |
166 | /* The guest did something we don't support. */ |
167 | #define pr_unimpl(vcpu, fmt, ...) \ | |
168 | do { \ | |
169 | if (printk_ratelimit()) \ | |
170 | printk(KERN_ERR "kvm: %i: cpu%i " fmt, \ | |
171 | current->tgid, (vcpu)->vcpu_id , ## __VA_ARGS__); \ | |
d77c26fc | 172 | } while (0) |
f0242478 | 173 | |
6aa8b732 AK |
174 | #define kvm_printf(kvm, fmt ...) printk(KERN_DEBUG fmt) |
175 | #define vcpu_printf(vcpu, fmt...) kvm_printf(vcpu->kvm, fmt) | |
176 | ||
fb3f0f51 RR |
177 | int kvm_vcpu_init(struct kvm_vcpu *vcpu, struct kvm *kvm, unsigned id); |
178 | void kvm_vcpu_uninit(struct kvm_vcpu *vcpu); | |
179 | ||
313a3dc7 CO |
180 | void vcpu_load(struct kvm_vcpu *vcpu); |
181 | void vcpu_put(struct kvm_vcpu *vcpu); | |
182 | ||
f8c16bba | 183 | int kvm_init(void *opaque, unsigned int vcpu_size, |
c16f862d | 184 | struct module *module); |
cb498ea2 | 185 | void kvm_exit(void); |
6aa8b732 | 186 | |
d39f13b0 IE |
187 | void kvm_get_kvm(struct kvm *kvm); |
188 | void kvm_put_kvm(struct kvm *kvm); | |
189 | ||
6aa8b732 AK |
190 | #define HPA_MSB ((sizeof(hpa_t) * 8) - 1) |
191 | #define HPA_ERR_MASK ((hpa_t)1 << HPA_MSB) | |
192 | static inline int is_error_hpa(hpa_t hpa) { return hpa >> HPA_MSB; } | |
039576c0 | 193 | struct page *gva_to_page(struct kvm_vcpu *vcpu, gva_t gva); |
6aa8b732 | 194 | |
cea7bb21 | 195 | extern struct page *bad_page; |
35149e21 | 196 | extern pfn_t bad_pfn; |
6aa8b732 | 197 | |
cea7bb21 | 198 | int is_error_page(struct page *page); |
35149e21 | 199 | int is_error_pfn(pfn_t pfn); |
f9d46eb0 | 200 | int kvm_is_error_hva(unsigned long addr); |
210c7c4d IE |
201 | int kvm_set_memory_region(struct kvm *kvm, |
202 | struct kvm_userspace_memory_region *mem, | |
203 | int user_alloc); | |
f78e0e2e SY |
204 | int __kvm_set_memory_region(struct kvm *kvm, |
205 | struct kvm_userspace_memory_region *mem, | |
206 | int user_alloc); | |
0de10343 ZX |
207 | int kvm_arch_set_memory_region(struct kvm *kvm, |
208 | struct kvm_userspace_memory_region *mem, | |
209 | struct kvm_memory_slot old, | |
210 | int user_alloc); | |
34d4cb8f | 211 | void kvm_arch_flush_shadow(struct kvm *kvm); |
290fc38d | 212 | gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn); |
954bbbc2 | 213 | struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn); |
05da4558 | 214 | unsigned long gfn_to_hva(struct kvm *kvm, gfn_t gfn); |
b4231d61 IE |
215 | void kvm_release_page_clean(struct page *page); |
216 | void kvm_release_page_dirty(struct page *page); | |
35149e21 AL |
217 | void kvm_set_page_dirty(struct page *page); |
218 | void kvm_set_page_accessed(struct page *page); | |
219 | ||
220 | pfn_t gfn_to_pfn(struct kvm *kvm, gfn_t gfn); | |
221 | void kvm_release_pfn_dirty(pfn_t); | |
222 | void kvm_release_pfn_clean(pfn_t pfn); | |
223 | void kvm_set_pfn_dirty(pfn_t pfn); | |
224 | void kvm_set_pfn_accessed(pfn_t pfn); | |
225 | void kvm_get_pfn(pfn_t pfn); | |
226 | ||
195aefde IE |
227 | int kvm_read_guest_page(struct kvm *kvm, gfn_t gfn, void *data, int offset, |
228 | int len); | |
7ec54588 MT |
229 | int kvm_read_guest_atomic(struct kvm *kvm, gpa_t gpa, void *data, |
230 | unsigned long len); | |
195aefde IE |
231 | int kvm_read_guest(struct kvm *kvm, gpa_t gpa, void *data, unsigned long len); |
232 | int kvm_write_guest_page(struct kvm *kvm, gfn_t gfn, const void *data, | |
233 | int offset, int len); | |
234 | int kvm_write_guest(struct kvm *kvm, gpa_t gpa, const void *data, | |
235 | unsigned long len); | |
236 | int kvm_clear_guest_page(struct kvm *kvm, gfn_t gfn, int offset, int len); | |
237 | int kvm_clear_guest(struct kvm *kvm, gpa_t gpa, unsigned long len); | |
6aa8b732 | 238 | struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn); |
e0d62c7f | 239 | int kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn); |
6aa8b732 AK |
240 | void mark_page_dirty(struct kvm *kvm, gfn_t gfn); |
241 | ||
8776e519 | 242 | void kvm_vcpu_block(struct kvm_vcpu *vcpu); |
6aa8b732 | 243 | void kvm_resched(struct kvm_vcpu *vcpu); |
7702fd1f AK |
244 | void kvm_load_guest_fpu(struct kvm_vcpu *vcpu); |
245 | void kvm_put_guest_fpu(struct kvm_vcpu *vcpu); | |
d9e368d6 | 246 | void kvm_flush_remote_tlbs(struct kvm *kvm); |
2e53d63a | 247 | void kvm_reload_remote_mmus(struct kvm *kvm); |
6aa8b732 | 248 | |
043405e1 CO |
249 | long kvm_arch_dev_ioctl(struct file *filp, |
250 | unsigned int ioctl, unsigned long arg); | |
313a3dc7 CO |
251 | long kvm_arch_vcpu_ioctl(struct file *filp, |
252 | unsigned int ioctl, unsigned long arg); | |
018d00d2 ZX |
253 | |
254 | int kvm_dev_ioctl_check_extension(long ext); | |
255 | ||
5bb064dc ZX |
256 | int kvm_get_dirty_log(struct kvm *kvm, |
257 | struct kvm_dirty_log *log, int *is_dirty); | |
258 | int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, | |
259 | struct kvm_dirty_log *log); | |
260 | ||
1fe779f8 CO |
261 | int kvm_vm_ioctl_set_memory_region(struct kvm *kvm, |
262 | struct | |
263 | kvm_userspace_memory_region *mem, | |
264 | int user_alloc); | |
265 | long kvm_arch_vm_ioctl(struct file *filp, | |
266 | unsigned int ioctl, unsigned long arg); | |
313a3dc7 | 267 | |
d0752060 HB |
268 | int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu); |
269 | int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu); | |
270 | ||
8b006791 ZX |
271 | int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu, |
272 | struct kvm_translation *tr); | |
273 | ||
b6c7a5dc HB |
274 | int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs); |
275 | int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs); | |
276 | int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu, | |
277 | struct kvm_sregs *sregs); | |
278 | int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu, | |
279 | struct kvm_sregs *sregs); | |
62d9f0db MT |
280 | int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu, |
281 | struct kvm_mp_state *mp_state); | |
282 | int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, | |
283 | struct kvm_mp_state *mp_state); | |
d0bfb940 JK |
284 | int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu, |
285 | struct kvm_guest_debug *dbg); | |
b6c7a5dc HB |
286 | int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run); |
287 | ||
f8c16bba ZX |
288 | int kvm_arch_init(void *opaque); |
289 | void kvm_arch_exit(void); | |
043405e1 | 290 | |
e9b11c17 ZX |
291 | int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu); |
292 | void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu); | |
293 | ||
294 | void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu); | |
295 | void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu); | |
296 | void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu); | |
297 | struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id); | |
26e5215f | 298 | int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu); |
d40ccc62 | 299 | void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu); |
e9b11c17 ZX |
300 | |
301 | int kvm_arch_vcpu_reset(struct kvm_vcpu *vcpu); | |
302 | void kvm_arch_hardware_enable(void *garbage); | |
303 | void kvm_arch_hardware_disable(void *garbage); | |
304 | int kvm_arch_hardware_setup(void); | |
305 | void kvm_arch_hardware_unsetup(void); | |
306 | void kvm_arch_check_processor_compat(void *rtn); | |
1d737c8a | 307 | int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu); |
78646121 | 308 | int kvm_arch_interrupt_allowed(struct kvm_vcpu *vcpu); |
e9b11c17 | 309 | |
d19a9cd2 ZX |
310 | void kvm_free_physmem(struct kvm *kvm); |
311 | ||
312 | struct kvm *kvm_arch_create_vm(void); | |
313 | void kvm_arch_destroy_vm(struct kvm *kvm); | |
8a98f664 | 314 | void kvm_free_all_assigned_devices(struct kvm *kvm); |
ad8ba2cd | 315 | void kvm_arch_sync_events(struct kvm *kvm); |
e9b11c17 | 316 | |
682c59a3 ZX |
317 | int kvm_cpu_get_interrupt(struct kvm_vcpu *v); |
318 | int kvm_cpu_has_interrupt(struct kvm_vcpu *v); | |
3d80840d | 319 | int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu); |
5736199a | 320 | void kvm_vcpu_kick(struct kvm_vcpu *vcpu); |
682c59a3 | 321 | |
c77fb9dc XZ |
322 | int kvm_is_mmio_pfn(pfn_t pfn); |
323 | ||
62c476c7 BAY |
324 | struct kvm_irq_ack_notifier { |
325 | struct hlist_node link; | |
326 | unsigned gsi; | |
327 | void (*irq_acked)(struct kvm_irq_ack_notifier *kian); | |
328 | }; | |
329 | ||
2350bd1f | 330 | #define KVM_ASSIGNED_MSIX_PENDING 0x1 |
c1e01514 SY |
331 | struct kvm_guest_msix_entry { |
332 | u32 vector; | |
333 | u16 entry; | |
334 | u16 flags; | |
335 | }; | |
336 | ||
62c476c7 BAY |
337 | struct kvm_assigned_dev_kernel { |
338 | struct kvm_irq_ack_notifier ack_notifier; | |
339 | struct work_struct interrupt_work; | |
340 | struct list_head list; | |
341 | int assigned_dev_id; | |
342 | int host_busnr; | |
343 | int host_devfn; | |
c1e01514 | 344 | unsigned int entries_nr; |
62c476c7 | 345 | int host_irq; |
defaf158 | 346 | bool host_irq_disabled; |
c1e01514 | 347 | struct msix_entry *host_msix_entries; |
62c476c7 | 348 | int guest_irq; |
c1e01514 | 349 | struct kvm_guest_msix_entry *guest_msix_entries; |
4f906c19 | 350 | unsigned long irq_requested_type; |
5550af4d | 351 | int irq_source_id; |
b653574a | 352 | int flags; |
62c476c7 BAY |
353 | struct pci_dev *dev; |
354 | struct kvm *kvm; | |
547de29e | 355 | spinlock_t assigned_dev_lock; |
62c476c7 | 356 | }; |
75858a84 AK |
357 | |
358 | struct kvm_irq_mask_notifier { | |
359 | void (*func)(struct kvm_irq_mask_notifier *kimn, bool masked); | |
360 | int irq; | |
361 | struct hlist_node link; | |
362 | }; | |
363 | ||
364 | void kvm_register_irq_mask_notifier(struct kvm *kvm, int irq, | |
365 | struct kvm_irq_mask_notifier *kimn); | |
366 | void kvm_unregister_irq_mask_notifier(struct kvm *kvm, int irq, | |
367 | struct kvm_irq_mask_notifier *kimn); | |
368 | void kvm_fire_mask_notifiers(struct kvm *kvm, int irq, bool mask); | |
369 | ||
4925663a | 370 | int kvm_set_irq(struct kvm *kvm, int irq_source_id, int irq, int level); |
44882eed | 371 | void kvm_notify_acked_irq(struct kvm *kvm, unsigned irqchip, unsigned pin); |
3de42dc0 XZ |
372 | void kvm_register_irq_ack_notifier(struct kvm *kvm, |
373 | struct kvm_irq_ack_notifier *kian); | |
e19e30ef | 374 | void kvm_unregister_irq_ack_notifier(struct kvm_irq_ack_notifier *kian); |
5550af4d SY |
375 | int kvm_request_irq_source_id(struct kvm *kvm); |
376 | void kvm_free_irq_source_id(struct kvm *kvm, int irq_source_id); | |
62c476c7 | 377 | |
522c68c4 SY |
378 | /* For vcpu->arch.iommu_flags */ |
379 | #define KVM_IOMMU_CACHE_COHERENCY 0x1 | |
380 | ||
19de40a8 | 381 | #ifdef CONFIG_IOMMU_API |
62c476c7 BAY |
382 | int kvm_iommu_map_pages(struct kvm *kvm, gfn_t base_gfn, |
383 | unsigned long npages); | |
260782bc | 384 | int kvm_iommu_map_guest(struct kvm *kvm); |
62c476c7 | 385 | int kvm_iommu_unmap_guest(struct kvm *kvm); |
260782bc WH |
386 | int kvm_assign_device(struct kvm *kvm, |
387 | struct kvm_assigned_dev_kernel *assigned_dev); | |
0a920356 WH |
388 | int kvm_deassign_device(struct kvm *kvm, |
389 | struct kvm_assigned_dev_kernel *assigned_dev); | |
19de40a8 | 390 | #else /* CONFIG_IOMMU_API */ |
62c476c7 BAY |
391 | static inline int kvm_iommu_map_pages(struct kvm *kvm, |
392 | gfn_t base_gfn, | |
393 | unsigned long npages) | |
394 | { | |
395 | return 0; | |
396 | } | |
397 | ||
260782bc | 398 | static inline int kvm_iommu_map_guest(struct kvm *kvm) |
62c476c7 BAY |
399 | { |
400 | return -ENODEV; | |
401 | } | |
402 | ||
403 | static inline int kvm_iommu_unmap_guest(struct kvm *kvm) | |
404 | { | |
405 | return 0; | |
406 | } | |
260782bc WH |
407 | |
408 | static inline int kvm_assign_device(struct kvm *kvm, | |
409 | struct kvm_assigned_dev_kernel *assigned_dev) | |
410 | { | |
411 | return 0; | |
412 | } | |
0a920356 WH |
413 | |
414 | static inline int kvm_deassign_device(struct kvm *kvm, | |
415 | struct kvm_assigned_dev_kernel *assigned_dev) | |
416 | { | |
417 | return 0; | |
418 | } | |
19de40a8 | 419 | #endif /* CONFIG_IOMMU_API */ |
62c476c7 | 420 | |
d172fcd3 LV |
421 | static inline void kvm_guest_enter(void) |
422 | { | |
e56a7a28 | 423 | account_system_vtime(current); |
d172fcd3 LV |
424 | current->flags |= PF_VCPU; |
425 | } | |
426 | ||
427 | static inline void kvm_guest_exit(void) | |
428 | { | |
e56a7a28 | 429 | account_system_vtime(current); |
d172fcd3 LV |
430 | current->flags &= ~PF_VCPU; |
431 | } | |
432 | ||
6aa8b732 AK |
433 | static inline int memslot_id(struct kvm *kvm, struct kvm_memory_slot *slot) |
434 | { | |
435 | return slot - kvm->memslots; | |
436 | } | |
437 | ||
1755fbcc AK |
438 | static inline gpa_t gfn_to_gpa(gfn_t gfn) |
439 | { | |
440 | return (gpa_t)gfn << PAGE_SHIFT; | |
441 | } | |
6aa8b732 | 442 | |
62c476c7 BAY |
443 | static inline hpa_t pfn_to_hpa(pfn_t pfn) |
444 | { | |
445 | return (hpa_t)pfn << PAGE_SHIFT; | |
446 | } | |
447 | ||
2f599714 | 448 | static inline void kvm_migrate_timers(struct kvm_vcpu *vcpu) |
2f52d58c AK |
449 | { |
450 | set_bit(KVM_REQ_MIGRATE_TIMER, &vcpu->requests); | |
451 | } | |
452 | ||
ba1389b7 AK |
453 | enum kvm_stat_kind { |
454 | KVM_STAT_VM, | |
455 | KVM_STAT_VCPU, | |
456 | }; | |
457 | ||
417bc304 HB |
458 | struct kvm_stats_debugfs_item { |
459 | const char *name; | |
460 | int offset; | |
ba1389b7 | 461 | enum kvm_stat_kind kind; |
417bc304 HB |
462 | struct dentry *dentry; |
463 | }; | |
464 | extern struct kvm_stats_debugfs_item debugfs_entries[]; | |
76f7c879 | 465 | extern struct dentry *kvm_debugfs_dir; |
d4c9ff2d | 466 | |
d98e6346 HB |
467 | #define KVMTRACE_5D(evt, vcpu, d1, d2, d3, d4, d5, name) \ |
468 | trace_mark(kvm_trace_##name, "%u %p %u %u %u %u %u %u", KVM_TRC_##evt, \ | |
469 | vcpu, 5, d1, d2, d3, d4, d5) | |
470 | #define KVMTRACE_4D(evt, vcpu, d1, d2, d3, d4, name) \ | |
471 | trace_mark(kvm_trace_##name, "%u %p %u %u %u %u %u %u", KVM_TRC_##evt, \ | |
472 | vcpu, 4, d1, d2, d3, d4, 0) | |
473 | #define KVMTRACE_3D(evt, vcpu, d1, d2, d3, name) \ | |
474 | trace_mark(kvm_trace_##name, "%u %p %u %u %u %u %u %u", KVM_TRC_##evt, \ | |
475 | vcpu, 3, d1, d2, d3, 0, 0) | |
476 | #define KVMTRACE_2D(evt, vcpu, d1, d2, name) \ | |
477 | trace_mark(kvm_trace_##name, "%u %p %u %u %u %u %u %u", KVM_TRC_##evt, \ | |
478 | vcpu, 2, d1, d2, 0, 0, 0) | |
479 | #define KVMTRACE_1D(evt, vcpu, d1, name) \ | |
480 | trace_mark(kvm_trace_##name, "%u %p %u %u %u %u %u %u", KVM_TRC_##evt, \ | |
481 | vcpu, 1, d1, 0, 0, 0, 0) | |
482 | #define KVMTRACE_0D(evt, vcpu, name) \ | |
483 | trace_mark(kvm_trace_##name, "%u %p %u %u %u %u %u %u", KVM_TRC_##evt, \ | |
484 | vcpu, 0, 0, 0, 0, 0, 0) | |
485 | ||
d4c9ff2d FEL |
486 | #ifdef CONFIG_KVM_TRACE |
487 | int kvm_trace_ioctl(unsigned int ioctl, unsigned long arg); | |
488 | void kvm_trace_cleanup(void); | |
489 | #else | |
490 | static inline | |
491 | int kvm_trace_ioctl(unsigned int ioctl, unsigned long arg) | |
492 | { | |
493 | return -EINVAL; | |
494 | } | |
495 | #define kvm_trace_cleanup() ((void)0) | |
496 | #endif | |
417bc304 | 497 | |
e930bffe AA |
498 | #ifdef KVM_ARCH_WANT_MMU_NOTIFIER |
499 | static inline int mmu_notifier_retry(struct kvm_vcpu *vcpu, unsigned long mmu_seq) | |
500 | { | |
501 | if (unlikely(vcpu->kvm->mmu_notifier_count)) | |
502 | return 1; | |
503 | /* | |
504 | * Both reads happen under the mmu_lock and both values are | |
505 | * modified under mmu_lock, so there's no need of smb_rmb() | |
506 | * here in between, otherwise mmu_notifier_count should be | |
507 | * read before mmu_notifier_seq, see | |
508 | * mmu_notifier_invalidate_range_end write side. | |
509 | */ | |
510 | if (vcpu->kvm->mmu_notifier_seq != mmu_seq) | |
511 | return 1; | |
512 | return 0; | |
513 | } | |
514 | #endif | |
515 | ||
399ec807 AK |
516 | #ifdef CONFIG_HAVE_KVM_IRQCHIP |
517 | ||
518 | #define KVM_MAX_IRQ_ROUTES 1024 | |
519 | ||
520 | int kvm_setup_default_irq_routing(struct kvm *kvm); | |
521 | int kvm_set_irq_routing(struct kvm *kvm, | |
522 | const struct kvm_irq_routing_entry *entries, | |
523 | unsigned nr, | |
524 | unsigned flags); | |
525 | void kvm_free_irq_routing(struct kvm *kvm); | |
526 | ||
527 | #else | |
528 | ||
529 | static inline void kvm_free_irq_routing(struct kvm *kvm) {} | |
530 | ||
531 | #endif | |
532 | ||
721eecbf GH |
533 | #ifdef CONFIG_HAVE_KVM_EVENTFD |
534 | ||
535 | void kvm_irqfd_init(struct kvm *kvm); | |
536 | int kvm_irqfd(struct kvm *kvm, int fd, int gsi, int flags); | |
537 | void kvm_irqfd_release(struct kvm *kvm); | |
538 | ||
539 | #else | |
540 | ||
541 | static inline void kvm_irqfd_init(struct kvm *kvm) {} | |
542 | static inline int kvm_irqfd(struct kvm *kvm, int fd, int gsi, int flags) | |
543 | { | |
544 | return -EINVAL; | |
545 | } | |
546 | ||
547 | static inline void kvm_irqfd_release(struct kvm *kvm) {} | |
548 | ||
549 | #endif /* CONFIG_HAVE_KVM_EVENTFD */ | |
550 | ||
6aa8b732 | 551 | #endif |