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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; | |
ec04b260 | 106 | } *lpage_info[KVM_NR_PAGE_SIZES - 1]; |
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]; | |
73880c80 GN |
134 | #ifdef CONFIG_KVM_APIC_ARCHITECTURE |
135 | u32 bsp_vcpu_id; | |
c5af89b6 | 136 | struct kvm_vcpu *bsp_vcpu; |
73880c80 | 137 | #endif |
fb3f0f51 | 138 | struct kvm_vcpu *vcpus[KVM_MAX_VCPUS]; |
73880c80 | 139 | atomic_t online_vcpus; |
133de902 | 140 | struct list_head vm_list; |
60eead79 | 141 | struct mutex lock; |
2eeb2e94 | 142 | struct kvm_io_bus mmio_bus; |
74906345 | 143 | struct kvm_io_bus pio_bus; |
721eecbf GH |
144 | #ifdef CONFIG_HAVE_KVM_EVENTFD |
145 | struct { | |
146 | spinlock_t lock; | |
147 | struct list_head items; | |
148 | } irqfds; | |
149 | #endif | |
ba1389b7 | 150 | struct kvm_vm_stat stat; |
d69fb81f | 151 | struct kvm_arch arch; |
d39f13b0 | 152 | atomic_t users_count; |
5f94c174 LV |
153 | #ifdef KVM_COALESCED_MMIO_PAGE_OFFSET |
154 | struct kvm_coalesced_mmio_dev *coalesced_mmio_dev; | |
155 | struct kvm_coalesced_mmio_ring *coalesced_mmio_ring; | |
156 | #endif | |
e930bffe | 157 | |
60eead79 | 158 | struct mutex irq_lock; |
75858a84 | 159 | #ifdef CONFIG_HAVE_KVM_IRQCHIP |
399ec807 | 160 | struct list_head irq_routing; /* of kvm_kernel_irq_routing_entry */ |
75858a84 AK |
161 | struct hlist_head mask_notifier_list; |
162 | #endif | |
163 | ||
e930bffe AA |
164 | #ifdef KVM_ARCH_WANT_MMU_NOTIFIER |
165 | struct mmu_notifier mmu_notifier; | |
166 | unsigned long mmu_notifier_seq; | |
167 | long mmu_notifier_count; | |
168 | #endif | |
6aa8b732 AK |
169 | }; |
170 | ||
f0242478 RR |
171 | /* The guest did something we don't support. */ |
172 | #define pr_unimpl(vcpu, fmt, ...) \ | |
173 | do { \ | |
174 | if (printk_ratelimit()) \ | |
175 | printk(KERN_ERR "kvm: %i: cpu%i " fmt, \ | |
176 | current->tgid, (vcpu)->vcpu_id , ## __VA_ARGS__); \ | |
d77c26fc | 177 | } while (0) |
f0242478 | 178 | |
6aa8b732 AK |
179 | #define kvm_printf(kvm, fmt ...) printk(KERN_DEBUG fmt) |
180 | #define vcpu_printf(vcpu, fmt...) kvm_printf(vcpu->kvm, fmt) | |
181 | ||
988a2cae GN |
182 | static inline struct kvm_vcpu *kvm_get_vcpu(struct kvm *kvm, int i) |
183 | { | |
184 | smp_rmb(); | |
185 | return kvm->vcpus[i]; | |
186 | } | |
187 | ||
188 | #define kvm_for_each_vcpu(idx, vcpup, kvm) \ | |
189 | for (idx = 0, vcpup = kvm_get_vcpu(kvm, idx); \ | |
190 | idx < atomic_read(&kvm->online_vcpus) && vcpup; \ | |
191 | vcpup = kvm_get_vcpu(kvm, ++idx)) | |
192 | ||
fb3f0f51 RR |
193 | int kvm_vcpu_init(struct kvm_vcpu *vcpu, struct kvm *kvm, unsigned id); |
194 | void kvm_vcpu_uninit(struct kvm_vcpu *vcpu); | |
195 | ||
313a3dc7 CO |
196 | void vcpu_load(struct kvm_vcpu *vcpu); |
197 | void vcpu_put(struct kvm_vcpu *vcpu); | |
198 | ||
f8c16bba | 199 | int kvm_init(void *opaque, unsigned int vcpu_size, |
c16f862d | 200 | struct module *module); |
cb498ea2 | 201 | void kvm_exit(void); |
6aa8b732 | 202 | |
d39f13b0 IE |
203 | void kvm_get_kvm(struct kvm *kvm); |
204 | void kvm_put_kvm(struct kvm *kvm); | |
205 | ||
6aa8b732 AK |
206 | #define HPA_MSB ((sizeof(hpa_t) * 8) - 1) |
207 | #define HPA_ERR_MASK ((hpa_t)1 << HPA_MSB) | |
208 | static inline int is_error_hpa(hpa_t hpa) { return hpa >> HPA_MSB; } | |
039576c0 | 209 | struct page *gva_to_page(struct kvm_vcpu *vcpu, gva_t gva); |
6aa8b732 | 210 | |
cea7bb21 | 211 | extern struct page *bad_page; |
35149e21 | 212 | extern pfn_t bad_pfn; |
6aa8b732 | 213 | |
cea7bb21 | 214 | int is_error_page(struct page *page); |
35149e21 | 215 | int is_error_pfn(pfn_t pfn); |
f9d46eb0 | 216 | int kvm_is_error_hva(unsigned long addr); |
210c7c4d IE |
217 | int kvm_set_memory_region(struct kvm *kvm, |
218 | struct kvm_userspace_memory_region *mem, | |
219 | int user_alloc); | |
f78e0e2e SY |
220 | int __kvm_set_memory_region(struct kvm *kvm, |
221 | struct kvm_userspace_memory_region *mem, | |
222 | int user_alloc); | |
0de10343 ZX |
223 | int kvm_arch_set_memory_region(struct kvm *kvm, |
224 | struct kvm_userspace_memory_region *mem, | |
225 | struct kvm_memory_slot old, | |
226 | int user_alloc); | |
54dee993 | 227 | void kvm_disable_largepages(void); |
34d4cb8f | 228 | void kvm_arch_flush_shadow(struct kvm *kvm); |
290fc38d | 229 | gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn); |
954bbbc2 | 230 | struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn); |
05da4558 | 231 | unsigned long gfn_to_hva(struct kvm *kvm, gfn_t gfn); |
b4231d61 IE |
232 | void kvm_release_page_clean(struct page *page); |
233 | void kvm_release_page_dirty(struct page *page); | |
35149e21 AL |
234 | void kvm_set_page_dirty(struct page *page); |
235 | void kvm_set_page_accessed(struct page *page); | |
236 | ||
237 | pfn_t gfn_to_pfn(struct kvm *kvm, gfn_t gfn); | |
238 | void kvm_release_pfn_dirty(pfn_t); | |
239 | void kvm_release_pfn_clean(pfn_t pfn); | |
240 | void kvm_set_pfn_dirty(pfn_t pfn); | |
241 | void kvm_set_pfn_accessed(pfn_t pfn); | |
242 | void kvm_get_pfn(pfn_t pfn); | |
243 | ||
195aefde IE |
244 | int kvm_read_guest_page(struct kvm *kvm, gfn_t gfn, void *data, int offset, |
245 | int len); | |
7ec54588 MT |
246 | int kvm_read_guest_atomic(struct kvm *kvm, gpa_t gpa, void *data, |
247 | unsigned long len); | |
195aefde IE |
248 | int kvm_read_guest(struct kvm *kvm, gpa_t gpa, void *data, unsigned long len); |
249 | int kvm_write_guest_page(struct kvm *kvm, gfn_t gfn, const void *data, | |
250 | int offset, int len); | |
251 | int kvm_write_guest(struct kvm *kvm, gpa_t gpa, const void *data, | |
252 | unsigned long len); | |
253 | int kvm_clear_guest_page(struct kvm *kvm, gfn_t gfn, int offset, int len); | |
254 | int kvm_clear_guest(struct kvm *kvm, gpa_t gpa, unsigned long len); | |
6aa8b732 | 255 | struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn); |
e0d62c7f | 256 | int kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn); |
6aa8b732 AK |
257 | void mark_page_dirty(struct kvm *kvm, gfn_t gfn); |
258 | ||
8776e519 | 259 | void kvm_vcpu_block(struct kvm_vcpu *vcpu); |
6aa8b732 | 260 | void kvm_resched(struct kvm_vcpu *vcpu); |
7702fd1f AK |
261 | void kvm_load_guest_fpu(struct kvm_vcpu *vcpu); |
262 | void kvm_put_guest_fpu(struct kvm_vcpu *vcpu); | |
d9e368d6 | 263 | void kvm_flush_remote_tlbs(struct kvm *kvm); |
2e53d63a | 264 | void kvm_reload_remote_mmus(struct kvm *kvm); |
6aa8b732 | 265 | |
043405e1 CO |
266 | long kvm_arch_dev_ioctl(struct file *filp, |
267 | unsigned int ioctl, unsigned long arg); | |
313a3dc7 CO |
268 | long kvm_arch_vcpu_ioctl(struct file *filp, |
269 | unsigned int ioctl, unsigned long arg); | |
018d00d2 ZX |
270 | |
271 | int kvm_dev_ioctl_check_extension(long ext); | |
272 | ||
5bb064dc ZX |
273 | int kvm_get_dirty_log(struct kvm *kvm, |
274 | struct kvm_dirty_log *log, int *is_dirty); | |
275 | int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, | |
276 | struct kvm_dirty_log *log); | |
277 | ||
1fe779f8 CO |
278 | int kvm_vm_ioctl_set_memory_region(struct kvm *kvm, |
279 | struct | |
280 | kvm_userspace_memory_region *mem, | |
281 | int user_alloc); | |
282 | long kvm_arch_vm_ioctl(struct file *filp, | |
283 | unsigned int ioctl, unsigned long arg); | |
313a3dc7 | 284 | |
d0752060 HB |
285 | int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu); |
286 | int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu); | |
287 | ||
8b006791 ZX |
288 | int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu, |
289 | struct kvm_translation *tr); | |
290 | ||
b6c7a5dc HB |
291 | int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs); |
292 | int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs); | |
293 | int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu, | |
294 | struct kvm_sregs *sregs); | |
295 | int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu, | |
296 | struct kvm_sregs *sregs); | |
62d9f0db MT |
297 | int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu, |
298 | struct kvm_mp_state *mp_state); | |
299 | int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, | |
300 | struct kvm_mp_state *mp_state); | |
d0bfb940 JK |
301 | int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu, |
302 | struct kvm_guest_debug *dbg); | |
b6c7a5dc HB |
303 | int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run); |
304 | ||
f8c16bba ZX |
305 | int kvm_arch_init(void *opaque); |
306 | void kvm_arch_exit(void); | |
043405e1 | 307 | |
e9b11c17 ZX |
308 | int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu); |
309 | void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu); | |
310 | ||
311 | void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu); | |
312 | void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu); | |
313 | void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu); | |
314 | struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id); | |
26e5215f | 315 | int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu); |
d40ccc62 | 316 | void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu); |
e9b11c17 ZX |
317 | |
318 | int kvm_arch_vcpu_reset(struct kvm_vcpu *vcpu); | |
319 | void kvm_arch_hardware_enable(void *garbage); | |
320 | void kvm_arch_hardware_disable(void *garbage); | |
321 | int kvm_arch_hardware_setup(void); | |
322 | void kvm_arch_hardware_unsetup(void); | |
323 | void kvm_arch_check_processor_compat(void *rtn); | |
1d737c8a | 324 | int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu); |
78646121 | 325 | int kvm_arch_interrupt_allowed(struct kvm_vcpu *vcpu); |
e9b11c17 | 326 | |
d19a9cd2 ZX |
327 | void kvm_free_physmem(struct kvm *kvm); |
328 | ||
329 | struct kvm *kvm_arch_create_vm(void); | |
330 | void kvm_arch_destroy_vm(struct kvm *kvm); | |
8a98f664 | 331 | void kvm_free_all_assigned_devices(struct kvm *kvm); |
ad8ba2cd | 332 | void kvm_arch_sync_events(struct kvm *kvm); |
e9b11c17 | 333 | |
682c59a3 ZX |
334 | int kvm_cpu_get_interrupt(struct kvm_vcpu *v); |
335 | int kvm_cpu_has_interrupt(struct kvm_vcpu *v); | |
3d80840d | 336 | int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu); |
5736199a | 337 | void kvm_vcpu_kick(struct kvm_vcpu *vcpu); |
682c59a3 | 338 | |
c77fb9dc XZ |
339 | int kvm_is_mmio_pfn(pfn_t pfn); |
340 | ||
62c476c7 BAY |
341 | struct kvm_irq_ack_notifier { |
342 | struct hlist_node link; | |
343 | unsigned gsi; | |
344 | void (*irq_acked)(struct kvm_irq_ack_notifier *kian); | |
345 | }; | |
346 | ||
2350bd1f | 347 | #define KVM_ASSIGNED_MSIX_PENDING 0x1 |
c1e01514 SY |
348 | struct kvm_guest_msix_entry { |
349 | u32 vector; | |
350 | u16 entry; | |
351 | u16 flags; | |
352 | }; | |
353 | ||
62c476c7 BAY |
354 | struct kvm_assigned_dev_kernel { |
355 | struct kvm_irq_ack_notifier ack_notifier; | |
356 | struct work_struct interrupt_work; | |
357 | struct list_head list; | |
358 | int assigned_dev_id; | |
359 | int host_busnr; | |
360 | int host_devfn; | |
c1e01514 | 361 | unsigned int entries_nr; |
62c476c7 | 362 | int host_irq; |
defaf158 | 363 | bool host_irq_disabled; |
c1e01514 | 364 | struct msix_entry *host_msix_entries; |
62c476c7 | 365 | int guest_irq; |
c1e01514 | 366 | struct kvm_guest_msix_entry *guest_msix_entries; |
4f906c19 | 367 | unsigned long irq_requested_type; |
5550af4d | 368 | int irq_source_id; |
b653574a | 369 | int flags; |
62c476c7 BAY |
370 | struct pci_dev *dev; |
371 | struct kvm *kvm; | |
547de29e | 372 | spinlock_t assigned_dev_lock; |
62c476c7 | 373 | }; |
75858a84 AK |
374 | |
375 | struct kvm_irq_mask_notifier { | |
376 | void (*func)(struct kvm_irq_mask_notifier *kimn, bool masked); | |
377 | int irq; | |
378 | struct hlist_node link; | |
379 | }; | |
380 | ||
381 | void kvm_register_irq_mask_notifier(struct kvm *kvm, int irq, | |
382 | struct kvm_irq_mask_notifier *kimn); | |
383 | void kvm_unregister_irq_mask_notifier(struct kvm *kvm, int irq, | |
384 | struct kvm_irq_mask_notifier *kimn); | |
385 | void kvm_fire_mask_notifiers(struct kvm *kvm, int irq, bool mask); | |
386 | ||
4925663a | 387 | int kvm_set_irq(struct kvm *kvm, int irq_source_id, int irq, int level); |
44882eed | 388 | void kvm_notify_acked_irq(struct kvm *kvm, unsigned irqchip, unsigned pin); |
3de42dc0 XZ |
389 | void kvm_register_irq_ack_notifier(struct kvm *kvm, |
390 | struct kvm_irq_ack_notifier *kian); | |
fa40a821 MT |
391 | void kvm_unregister_irq_ack_notifier(struct kvm *kvm, |
392 | struct kvm_irq_ack_notifier *kian); | |
5550af4d SY |
393 | int kvm_request_irq_source_id(struct kvm *kvm); |
394 | void kvm_free_irq_source_id(struct kvm *kvm, int irq_source_id); | |
62c476c7 | 395 | |
522c68c4 SY |
396 | /* For vcpu->arch.iommu_flags */ |
397 | #define KVM_IOMMU_CACHE_COHERENCY 0x1 | |
398 | ||
19de40a8 | 399 | #ifdef CONFIG_IOMMU_API |
62c476c7 BAY |
400 | int kvm_iommu_map_pages(struct kvm *kvm, gfn_t base_gfn, |
401 | unsigned long npages); | |
260782bc | 402 | int kvm_iommu_map_guest(struct kvm *kvm); |
62c476c7 | 403 | int kvm_iommu_unmap_guest(struct kvm *kvm); |
260782bc WH |
404 | int kvm_assign_device(struct kvm *kvm, |
405 | struct kvm_assigned_dev_kernel *assigned_dev); | |
0a920356 WH |
406 | int kvm_deassign_device(struct kvm *kvm, |
407 | struct kvm_assigned_dev_kernel *assigned_dev); | |
19de40a8 | 408 | #else /* CONFIG_IOMMU_API */ |
62c476c7 BAY |
409 | static inline int kvm_iommu_map_pages(struct kvm *kvm, |
410 | gfn_t base_gfn, | |
411 | unsigned long npages) | |
412 | { | |
413 | return 0; | |
414 | } | |
415 | ||
260782bc | 416 | static inline int kvm_iommu_map_guest(struct kvm *kvm) |
62c476c7 BAY |
417 | { |
418 | return -ENODEV; | |
419 | } | |
420 | ||
421 | static inline int kvm_iommu_unmap_guest(struct kvm *kvm) | |
422 | { | |
423 | return 0; | |
424 | } | |
260782bc WH |
425 | |
426 | static inline int kvm_assign_device(struct kvm *kvm, | |
427 | struct kvm_assigned_dev_kernel *assigned_dev) | |
428 | { | |
429 | return 0; | |
430 | } | |
0a920356 WH |
431 | |
432 | static inline int kvm_deassign_device(struct kvm *kvm, | |
433 | struct kvm_assigned_dev_kernel *assigned_dev) | |
434 | { | |
435 | return 0; | |
436 | } | |
19de40a8 | 437 | #endif /* CONFIG_IOMMU_API */ |
62c476c7 | 438 | |
d172fcd3 LV |
439 | static inline void kvm_guest_enter(void) |
440 | { | |
e56a7a28 | 441 | account_system_vtime(current); |
d172fcd3 LV |
442 | current->flags |= PF_VCPU; |
443 | } | |
444 | ||
445 | static inline void kvm_guest_exit(void) | |
446 | { | |
e56a7a28 | 447 | account_system_vtime(current); |
d172fcd3 LV |
448 | current->flags &= ~PF_VCPU; |
449 | } | |
450 | ||
6aa8b732 AK |
451 | static inline int memslot_id(struct kvm *kvm, struct kvm_memory_slot *slot) |
452 | { | |
453 | return slot - kvm->memslots; | |
454 | } | |
455 | ||
1755fbcc AK |
456 | static inline gpa_t gfn_to_gpa(gfn_t gfn) |
457 | { | |
458 | return (gpa_t)gfn << PAGE_SHIFT; | |
459 | } | |
6aa8b732 | 460 | |
62c476c7 BAY |
461 | static inline hpa_t pfn_to_hpa(pfn_t pfn) |
462 | { | |
463 | return (hpa_t)pfn << PAGE_SHIFT; | |
464 | } | |
465 | ||
2f599714 | 466 | static inline void kvm_migrate_timers(struct kvm_vcpu *vcpu) |
2f52d58c AK |
467 | { |
468 | set_bit(KVM_REQ_MIGRATE_TIMER, &vcpu->requests); | |
469 | } | |
470 | ||
ba1389b7 AK |
471 | enum kvm_stat_kind { |
472 | KVM_STAT_VM, | |
473 | KVM_STAT_VCPU, | |
474 | }; | |
475 | ||
417bc304 HB |
476 | struct kvm_stats_debugfs_item { |
477 | const char *name; | |
478 | int offset; | |
ba1389b7 | 479 | enum kvm_stat_kind kind; |
417bc304 HB |
480 | struct dentry *dentry; |
481 | }; | |
482 | extern struct kvm_stats_debugfs_item debugfs_entries[]; | |
76f7c879 | 483 | extern struct dentry *kvm_debugfs_dir; |
d4c9ff2d | 484 | |
e930bffe AA |
485 | #ifdef KVM_ARCH_WANT_MMU_NOTIFIER |
486 | static inline int mmu_notifier_retry(struct kvm_vcpu *vcpu, unsigned long mmu_seq) | |
487 | { | |
488 | if (unlikely(vcpu->kvm->mmu_notifier_count)) | |
489 | return 1; | |
490 | /* | |
491 | * Both reads happen under the mmu_lock and both values are | |
492 | * modified under mmu_lock, so there's no need of smb_rmb() | |
493 | * here in between, otherwise mmu_notifier_count should be | |
494 | * read before mmu_notifier_seq, see | |
495 | * mmu_notifier_invalidate_range_end write side. | |
496 | */ | |
497 | if (vcpu->kvm->mmu_notifier_seq != mmu_seq) | |
498 | return 1; | |
499 | return 0; | |
500 | } | |
501 | #endif | |
502 | ||
399ec807 AK |
503 | #ifdef CONFIG_HAVE_KVM_IRQCHIP |
504 | ||
505 | #define KVM_MAX_IRQ_ROUTES 1024 | |
506 | ||
507 | int kvm_setup_default_irq_routing(struct kvm *kvm); | |
508 | int kvm_set_irq_routing(struct kvm *kvm, | |
509 | const struct kvm_irq_routing_entry *entries, | |
510 | unsigned nr, | |
511 | unsigned flags); | |
512 | void kvm_free_irq_routing(struct kvm *kvm); | |
513 | ||
514 | #else | |
515 | ||
516 | static inline void kvm_free_irq_routing(struct kvm *kvm) {} | |
517 | ||
518 | #endif | |
519 | ||
721eecbf GH |
520 | #ifdef CONFIG_HAVE_KVM_EVENTFD |
521 | ||
522 | void kvm_irqfd_init(struct kvm *kvm); | |
523 | int kvm_irqfd(struct kvm *kvm, int fd, int gsi, int flags); | |
524 | void kvm_irqfd_release(struct kvm *kvm); | |
525 | ||
526 | #else | |
527 | ||
528 | static inline void kvm_irqfd_init(struct kvm *kvm) {} | |
529 | static inline int kvm_irqfd(struct kvm *kvm, int fd, int gsi, int flags) | |
530 | { | |
531 | return -EINVAL; | |
532 | } | |
533 | ||
534 | static inline void kvm_irqfd_release(struct kvm *kvm) {} | |
535 | ||
536 | #endif /* CONFIG_HAVE_KVM_EVENTFD */ | |
537 | ||
73880c80 | 538 | #ifdef CONFIG_KVM_APIC_ARCHITECTURE |
c5af89b6 GN |
539 | static inline bool kvm_vcpu_is_bsp(struct kvm_vcpu *vcpu) |
540 | { | |
d3efc8ef | 541 | return vcpu->kvm->bsp_vcpu_id == vcpu->vcpu_id; |
c5af89b6 | 542 | } |
6aa8b732 | 543 | #endif |
73880c80 | 544 | #endif |