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> |
e8edc6e0 | 19 | #include <asm/signal.h> |
6aa8b732 | 20 | |
6aa8b732 | 21 | #include <linux/kvm.h> |
102d8325 | 22 | #include <linux/kvm_para.h> |
6aa8b732 | 23 | |
edf88417 | 24 | #include <linux/kvm_types.h> |
d77a39d9 | 25 | |
edf88417 | 26 | #include <asm/kvm_host.h> |
d657a98e | 27 | |
d9e368d6 AK |
28 | /* |
29 | * vcpu->requests bit members | |
30 | */ | |
3176bc3e | 31 | #define KVM_REQ_TLB_FLUSH 0 |
2f52d58c | 32 | #define KVM_REQ_MIGRATE_TIMER 1 |
b209749f | 33 | #define KVM_REQ_REPORT_TPR_ACCESS 2 |
2e53d63a | 34 | #define KVM_REQ_MMU_RELOAD 3 |
71c4dfaf | 35 | #define KVM_REQ_TRIPLE_FAULT 4 |
06e05645 | 36 | #define KVM_REQ_PENDING_TIMER 5 |
d7690175 | 37 | #define KVM_REQ_UNHALT 6 |
4731d4c7 | 38 | #define KVM_REQ_MMU_SYNC 7 |
c8076604 | 39 | #define KVM_REQ_KVMCLOCK_UPDATE 8 |
32f88400 | 40 | #define KVM_REQ_KICK 9 |
6aa8b732 | 41 | |
5550af4d SY |
42 | #define KVM_USERSPACE_IRQ_SOURCE_ID 0 |
43 | ||
6c474694 | 44 | struct kvm; |
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 | ||
e93f8a0f MT |
60 | enum kvm_bus { |
61 | KVM_MMIO_BUS, | |
62 | KVM_PIO_BUS, | |
63 | KVM_NR_BUSES | |
64 | }; | |
65 | ||
66 | int kvm_io_bus_write(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr, | |
67 | int len, const void *val); | |
68 | int kvm_io_bus_read(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr, int len, | |
bda9020e | 69 | void *val); |
e93f8a0f | 70 | int kvm_io_bus_register_dev(struct kvm *kvm, enum kvm_bus bus_idx, |
090b7aff | 71 | struct kvm_io_device *dev); |
e93f8a0f MT |
72 | int kvm_io_bus_unregister_dev(struct kvm *kvm, enum kvm_bus bus_idx, |
73 | struct kvm_io_device *dev); | |
2eeb2e94 | 74 | |
d17fbbf7 ZX |
75 | struct kvm_vcpu { |
76 | struct kvm *kvm; | |
31bb117e | 77 | #ifdef CONFIG_PREEMPT_NOTIFIERS |
d17fbbf7 | 78 | struct preempt_notifier preempt_notifier; |
31bb117e | 79 | #endif |
d17fbbf7 ZX |
80 | int vcpu_id; |
81 | struct mutex mutex; | |
82 | int cpu; | |
83 | struct kvm_run *run; | |
d17fbbf7 | 84 | unsigned long requests; |
d0bfb940 | 85 | unsigned long guest_debug; |
f656ce01 MT |
86 | int srcu_idx; |
87 | ||
d17fbbf7 ZX |
88 | int fpu_active; |
89 | int guest_fpu_loaded; | |
90 | wait_queue_head_t wq; | |
91 | int sigset_active; | |
92 | sigset_t sigset; | |
93 | struct kvm_vcpu_stat stat; | |
94 | ||
34c16eec | 95 | #ifdef CONFIG_HAS_IOMEM |
d17fbbf7 ZX |
96 | int mmio_needed; |
97 | int mmio_read_completed; | |
98 | int mmio_is_write; | |
99 | int mmio_size; | |
100 | unsigned char mmio_data[8]; | |
6aa8b732 | 101 | gpa_t mmio_phys_addr; |
34c16eec | 102 | #endif |
1165f5fe | 103 | |
d657a98e ZX |
104 | struct kvm_vcpu_arch arch; |
105 | }; | |
106 | ||
6aa8b732 AK |
107 | struct kvm_memory_slot { |
108 | gfn_t base_gfn; | |
109 | unsigned long npages; | |
110 | unsigned long flags; | |
290fc38d | 111 | unsigned long *rmap; |
6aa8b732 | 112 | unsigned long *dirty_bitmap; |
05da4558 MT |
113 | struct { |
114 | unsigned long rmap_pde; | |
115 | int write_count; | |
ec04b260 | 116 | } *lpage_info[KVM_NR_PAGE_SIZES - 1]; |
8a7ae055 | 117 | unsigned long userspace_addr; |
80b14b5b | 118 | int user_alloc; |
6aa8b732 AK |
119 | }; |
120 | ||
399ec807 AK |
121 | struct kvm_kernel_irq_routing_entry { |
122 | u32 gsi; | |
5116d8f6 | 123 | u32 type; |
4925663a | 124 | int (*set)(struct kvm_kernel_irq_routing_entry *e, |
1a6e4a8c | 125 | struct kvm *kvm, int irq_source_id, int level); |
399ec807 AK |
126 | union { |
127 | struct { | |
128 | unsigned irqchip; | |
129 | unsigned pin; | |
130 | } irqchip; | |
79950e10 | 131 | struct msi_msg msi; |
399ec807 | 132 | }; |
46e624b9 GN |
133 | struct hlist_node link; |
134 | }; | |
135 | ||
3e71f88b GN |
136 | #ifdef __KVM_HAVE_IOAPIC |
137 | ||
46e624b9 | 138 | struct kvm_irq_routing_table { |
3e71f88b | 139 | int chip[KVM_NR_IRQCHIPS][KVM_IOAPIC_NUM_PINS]; |
46e624b9 GN |
140 | struct kvm_kernel_irq_routing_entry *rt_entries; |
141 | u32 nr_rt_entries; | |
142 | /* | |
143 | * Array indexed by gsi. Each entry contains list of irq chips | |
144 | * the gsi is connected to. | |
145 | */ | |
146 | struct hlist_head map[0]; | |
399ec807 AK |
147 | }; |
148 | ||
3e71f88b GN |
149 | #else |
150 | ||
151 | struct kvm_irq_routing_table {}; | |
152 | ||
153 | #endif | |
154 | ||
46a26bf5 MT |
155 | struct kvm_memslots { |
156 | int nmemslots; | |
157 | struct kvm_memory_slot memslots[KVM_MEMORY_SLOTS + | |
158 | KVM_PRIVATE_MEM_SLOTS]; | |
159 | }; | |
160 | ||
6aa8b732 | 161 | struct kvm { |
aaee2c94 | 162 | spinlock_t mmu_lock; |
84261923 | 163 | spinlock_t requests_lock; |
72dc67a6 | 164 | struct rw_semaphore slots_lock; |
6d4e4c4f | 165 | struct mm_struct *mm; /* userspace tied to this vm */ |
46a26bf5 | 166 | struct kvm_memslots *memslots; |
bc6678a3 | 167 | struct srcu_struct srcu; |
73880c80 GN |
168 | #ifdef CONFIG_KVM_APIC_ARCHITECTURE |
169 | u32 bsp_vcpu_id; | |
c5af89b6 | 170 | struct kvm_vcpu *bsp_vcpu; |
73880c80 | 171 | #endif |
fb3f0f51 | 172 | struct kvm_vcpu *vcpus[KVM_MAX_VCPUS]; |
73880c80 | 173 | atomic_t online_vcpus; |
133de902 | 174 | struct list_head vm_list; |
60eead79 | 175 | struct mutex lock; |
e93f8a0f | 176 | struct kvm_io_bus *buses[KVM_NR_BUSES]; |
721eecbf GH |
177 | #ifdef CONFIG_HAVE_KVM_EVENTFD |
178 | struct { | |
179 | spinlock_t lock; | |
180 | struct list_head items; | |
181 | } irqfds; | |
d34e6b17 | 182 | struct list_head ioeventfds; |
721eecbf | 183 | #endif |
ba1389b7 | 184 | struct kvm_vm_stat stat; |
d69fb81f | 185 | struct kvm_arch arch; |
d39f13b0 | 186 | atomic_t users_count; |
5f94c174 LV |
187 | #ifdef KVM_COALESCED_MMIO_PAGE_OFFSET |
188 | struct kvm_coalesced_mmio_dev *coalesced_mmio_dev; | |
189 | struct kvm_coalesced_mmio_ring *coalesced_mmio_ring; | |
190 | #endif | |
e930bffe | 191 | |
60eead79 | 192 | struct mutex irq_lock; |
75858a84 | 193 | #ifdef CONFIG_HAVE_KVM_IRQCHIP |
46e624b9 | 194 | struct kvm_irq_routing_table *irq_routing; |
75858a84 | 195 | struct hlist_head mask_notifier_list; |
136bdfee | 196 | struct hlist_head irq_ack_notifier_list; |
75858a84 AK |
197 | #endif |
198 | ||
e930bffe AA |
199 | #ifdef KVM_ARCH_WANT_MMU_NOTIFIER |
200 | struct mmu_notifier mmu_notifier; | |
201 | unsigned long mmu_notifier_seq; | |
202 | long mmu_notifier_count; | |
203 | #endif | |
6aa8b732 AK |
204 | }; |
205 | ||
f0242478 RR |
206 | /* The guest did something we don't support. */ |
207 | #define pr_unimpl(vcpu, fmt, ...) \ | |
208 | do { \ | |
209 | if (printk_ratelimit()) \ | |
210 | printk(KERN_ERR "kvm: %i: cpu%i " fmt, \ | |
211 | current->tgid, (vcpu)->vcpu_id , ## __VA_ARGS__); \ | |
d77c26fc | 212 | } while (0) |
f0242478 | 213 | |
6aa8b732 AK |
214 | #define kvm_printf(kvm, fmt ...) printk(KERN_DEBUG fmt) |
215 | #define vcpu_printf(vcpu, fmt...) kvm_printf(vcpu->kvm, fmt) | |
216 | ||
988a2cae GN |
217 | static inline struct kvm_vcpu *kvm_get_vcpu(struct kvm *kvm, int i) |
218 | { | |
219 | smp_rmb(); | |
220 | return kvm->vcpus[i]; | |
221 | } | |
222 | ||
223 | #define kvm_for_each_vcpu(idx, vcpup, kvm) \ | |
224 | for (idx = 0, vcpup = kvm_get_vcpu(kvm, idx); \ | |
225 | idx < atomic_read(&kvm->online_vcpus) && vcpup; \ | |
226 | vcpup = kvm_get_vcpu(kvm, ++idx)) | |
227 | ||
fb3f0f51 RR |
228 | int kvm_vcpu_init(struct kvm_vcpu *vcpu, struct kvm *kvm, unsigned id); |
229 | void kvm_vcpu_uninit(struct kvm_vcpu *vcpu); | |
230 | ||
313a3dc7 CO |
231 | void vcpu_load(struct kvm_vcpu *vcpu); |
232 | void vcpu_put(struct kvm_vcpu *vcpu); | |
233 | ||
f8c16bba | 234 | int kvm_init(void *opaque, unsigned int vcpu_size, |
c16f862d | 235 | struct module *module); |
cb498ea2 | 236 | void kvm_exit(void); |
6aa8b732 | 237 | |
d39f13b0 IE |
238 | void kvm_get_kvm(struct kvm *kvm); |
239 | void kvm_put_kvm(struct kvm *kvm); | |
240 | ||
6aa8b732 AK |
241 | #define HPA_MSB ((sizeof(hpa_t) * 8) - 1) |
242 | #define HPA_ERR_MASK ((hpa_t)1 << HPA_MSB) | |
243 | static inline int is_error_hpa(hpa_t hpa) { return hpa >> HPA_MSB; } | |
039576c0 | 244 | struct page *gva_to_page(struct kvm_vcpu *vcpu, gva_t gva); |
6aa8b732 | 245 | |
cea7bb21 | 246 | extern struct page *bad_page; |
35149e21 | 247 | extern pfn_t bad_pfn; |
6aa8b732 | 248 | |
cea7bb21 | 249 | int is_error_page(struct page *page); |
35149e21 | 250 | int is_error_pfn(pfn_t pfn); |
f9d46eb0 | 251 | int kvm_is_error_hva(unsigned long addr); |
210c7c4d IE |
252 | int kvm_set_memory_region(struct kvm *kvm, |
253 | struct kvm_userspace_memory_region *mem, | |
254 | int user_alloc); | |
f78e0e2e SY |
255 | int __kvm_set_memory_region(struct kvm *kvm, |
256 | struct kvm_userspace_memory_region *mem, | |
257 | int user_alloc); | |
f7784b8e MT |
258 | int kvm_arch_prepare_memory_region(struct kvm *kvm, |
259 | struct kvm_memory_slot *memslot, | |
260 | struct kvm_memory_slot old, | |
261 | struct kvm_userspace_memory_region *mem, | |
262 | int user_alloc); | |
263 | void kvm_arch_commit_memory_region(struct kvm *kvm, | |
0de10343 ZX |
264 | struct kvm_userspace_memory_region *mem, |
265 | struct kvm_memory_slot old, | |
266 | int user_alloc); | |
54dee993 | 267 | void kvm_disable_largepages(void); |
34d4cb8f | 268 | void kvm_arch_flush_shadow(struct kvm *kvm); |
290fc38d | 269 | gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn); |
a983fb23 MT |
270 | gfn_t unalias_gfn_instantiation(struct kvm *kvm, gfn_t gfn); |
271 | ||
954bbbc2 | 272 | struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn); |
05da4558 | 273 | unsigned long gfn_to_hva(struct kvm *kvm, gfn_t gfn); |
b4231d61 IE |
274 | void kvm_release_page_clean(struct page *page); |
275 | void kvm_release_page_dirty(struct page *page); | |
35149e21 AL |
276 | void kvm_set_page_dirty(struct page *page); |
277 | void kvm_set_page_accessed(struct page *page); | |
278 | ||
279 | pfn_t gfn_to_pfn(struct kvm *kvm, gfn_t gfn); | |
506f0d6f MT |
280 | pfn_t gfn_to_pfn_memslot(struct kvm *kvm, |
281 | struct kvm_memory_slot *slot, gfn_t gfn); | |
bc6678a3 | 282 | int memslot_id(struct kvm *kvm, gfn_t gfn); |
35149e21 AL |
283 | void kvm_release_pfn_dirty(pfn_t); |
284 | void kvm_release_pfn_clean(pfn_t pfn); | |
285 | void kvm_set_pfn_dirty(pfn_t pfn); | |
286 | void kvm_set_pfn_accessed(pfn_t pfn); | |
287 | void kvm_get_pfn(pfn_t pfn); | |
288 | ||
195aefde IE |
289 | int kvm_read_guest_page(struct kvm *kvm, gfn_t gfn, void *data, int offset, |
290 | int len); | |
7ec54588 MT |
291 | int kvm_read_guest_atomic(struct kvm *kvm, gpa_t gpa, void *data, |
292 | unsigned long len); | |
195aefde IE |
293 | int kvm_read_guest(struct kvm *kvm, gpa_t gpa, void *data, unsigned long len); |
294 | int kvm_write_guest_page(struct kvm *kvm, gfn_t gfn, const void *data, | |
295 | int offset, int len); | |
296 | int kvm_write_guest(struct kvm *kvm, gpa_t gpa, const void *data, | |
297 | unsigned long len); | |
298 | int kvm_clear_guest_page(struct kvm *kvm, gfn_t gfn, int offset, int len); | |
299 | int kvm_clear_guest(struct kvm *kvm, gpa_t gpa, unsigned long len); | |
6aa8b732 | 300 | struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn); |
e0d62c7f | 301 | int kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn); |
6aa8b732 AK |
302 | void mark_page_dirty(struct kvm *kvm, gfn_t gfn); |
303 | ||
8776e519 | 304 | void kvm_vcpu_block(struct kvm_vcpu *vcpu); |
d255f4f2 | 305 | void kvm_vcpu_on_spin(struct kvm_vcpu *vcpu); |
6aa8b732 | 306 | void kvm_resched(struct kvm_vcpu *vcpu); |
7702fd1f AK |
307 | void kvm_load_guest_fpu(struct kvm_vcpu *vcpu); |
308 | void kvm_put_guest_fpu(struct kvm_vcpu *vcpu); | |
d9e368d6 | 309 | void kvm_flush_remote_tlbs(struct kvm *kvm); |
2e53d63a | 310 | void kvm_reload_remote_mmus(struct kvm *kvm); |
6aa8b732 | 311 | |
043405e1 CO |
312 | long kvm_arch_dev_ioctl(struct file *filp, |
313 | unsigned int ioctl, unsigned long arg); | |
313a3dc7 CO |
314 | long kvm_arch_vcpu_ioctl(struct file *filp, |
315 | unsigned int ioctl, unsigned long arg); | |
018d00d2 ZX |
316 | |
317 | int kvm_dev_ioctl_check_extension(long ext); | |
318 | ||
5bb064dc ZX |
319 | int kvm_get_dirty_log(struct kvm *kvm, |
320 | struct kvm_dirty_log *log, int *is_dirty); | |
321 | int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, | |
322 | struct kvm_dirty_log *log); | |
323 | ||
1fe779f8 CO |
324 | int kvm_vm_ioctl_set_memory_region(struct kvm *kvm, |
325 | struct | |
326 | kvm_userspace_memory_region *mem, | |
327 | int user_alloc); | |
328 | long kvm_arch_vm_ioctl(struct file *filp, | |
329 | unsigned int ioctl, unsigned long arg); | |
313a3dc7 | 330 | |
d0752060 HB |
331 | int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu); |
332 | int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu); | |
333 | ||
8b006791 ZX |
334 | int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu, |
335 | struct kvm_translation *tr); | |
336 | ||
b6c7a5dc HB |
337 | int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs); |
338 | int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs); | |
339 | int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu, | |
340 | struct kvm_sregs *sregs); | |
341 | int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu, | |
342 | struct kvm_sregs *sregs); | |
62d9f0db MT |
343 | int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu, |
344 | struct kvm_mp_state *mp_state); | |
345 | int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, | |
346 | struct kvm_mp_state *mp_state); | |
d0bfb940 JK |
347 | int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu, |
348 | struct kvm_guest_debug *dbg); | |
b6c7a5dc HB |
349 | int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run); |
350 | ||
f8c16bba ZX |
351 | int kvm_arch_init(void *opaque); |
352 | void kvm_arch_exit(void); | |
043405e1 | 353 | |
e9b11c17 ZX |
354 | int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu); |
355 | void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu); | |
356 | ||
357 | void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu); | |
358 | void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu); | |
359 | void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu); | |
360 | struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id); | |
26e5215f | 361 | int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu); |
d40ccc62 | 362 | void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu); |
e9b11c17 ZX |
363 | |
364 | int kvm_arch_vcpu_reset(struct kvm_vcpu *vcpu); | |
10474ae8 | 365 | int kvm_arch_hardware_enable(void *garbage); |
e9b11c17 ZX |
366 | void kvm_arch_hardware_disable(void *garbage); |
367 | int kvm_arch_hardware_setup(void); | |
368 | void kvm_arch_hardware_unsetup(void); | |
369 | void kvm_arch_check_processor_compat(void *rtn); | |
1d737c8a | 370 | int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu); |
e9b11c17 | 371 | |
d19a9cd2 ZX |
372 | void kvm_free_physmem(struct kvm *kvm); |
373 | ||
374 | struct kvm *kvm_arch_create_vm(void); | |
375 | void kvm_arch_destroy_vm(struct kvm *kvm); | |
8a98f664 | 376 | void kvm_free_all_assigned_devices(struct kvm *kvm); |
ad8ba2cd | 377 | void kvm_arch_sync_events(struct kvm *kvm); |
e9b11c17 | 378 | |
3d80840d | 379 | int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu); |
5736199a | 380 | void kvm_vcpu_kick(struct kvm_vcpu *vcpu); |
682c59a3 | 381 | |
c77fb9dc XZ |
382 | int kvm_is_mmio_pfn(pfn_t pfn); |
383 | ||
62c476c7 BAY |
384 | struct kvm_irq_ack_notifier { |
385 | struct hlist_node link; | |
386 | unsigned gsi; | |
387 | void (*irq_acked)(struct kvm_irq_ack_notifier *kian); | |
388 | }; | |
389 | ||
2350bd1f | 390 | #define KVM_ASSIGNED_MSIX_PENDING 0x1 |
c1e01514 SY |
391 | struct kvm_guest_msix_entry { |
392 | u32 vector; | |
393 | u16 entry; | |
394 | u16 flags; | |
395 | }; | |
396 | ||
62c476c7 BAY |
397 | struct kvm_assigned_dev_kernel { |
398 | struct kvm_irq_ack_notifier ack_notifier; | |
399 | struct work_struct interrupt_work; | |
400 | struct list_head list; | |
401 | int assigned_dev_id; | |
402 | int host_busnr; | |
403 | int host_devfn; | |
c1e01514 | 404 | unsigned int entries_nr; |
62c476c7 | 405 | int host_irq; |
defaf158 | 406 | bool host_irq_disabled; |
c1e01514 | 407 | struct msix_entry *host_msix_entries; |
62c476c7 | 408 | int guest_irq; |
c1e01514 | 409 | struct kvm_guest_msix_entry *guest_msix_entries; |
4f906c19 | 410 | unsigned long irq_requested_type; |
5550af4d | 411 | int irq_source_id; |
b653574a | 412 | int flags; |
62c476c7 BAY |
413 | struct pci_dev *dev; |
414 | struct kvm *kvm; | |
547de29e | 415 | spinlock_t assigned_dev_lock; |
62c476c7 | 416 | }; |
75858a84 AK |
417 | |
418 | struct kvm_irq_mask_notifier { | |
419 | void (*func)(struct kvm_irq_mask_notifier *kimn, bool masked); | |
420 | int irq; | |
421 | struct hlist_node link; | |
422 | }; | |
423 | ||
424 | void kvm_register_irq_mask_notifier(struct kvm *kvm, int irq, | |
425 | struct kvm_irq_mask_notifier *kimn); | |
426 | void kvm_unregister_irq_mask_notifier(struct kvm *kvm, int irq, | |
427 | struct kvm_irq_mask_notifier *kimn); | |
428 | void kvm_fire_mask_notifiers(struct kvm *kvm, int irq, bool mask); | |
429 | ||
46e624b9 GN |
430 | #ifdef __KVM_HAVE_IOAPIC |
431 | void kvm_get_intr_delivery_bitmask(struct kvm_ioapic *ioapic, | |
432 | union kvm_ioapic_redirect_entry *entry, | |
433 | unsigned long *deliver_bitmask); | |
434 | #endif | |
435 | int kvm_set_irq(struct kvm *kvm, int irq_source_id, u32 irq, int level); | |
44882eed | 436 | void kvm_notify_acked_irq(struct kvm *kvm, unsigned irqchip, unsigned pin); |
3de42dc0 XZ |
437 | void kvm_register_irq_ack_notifier(struct kvm *kvm, |
438 | struct kvm_irq_ack_notifier *kian); | |
fa40a821 MT |
439 | void kvm_unregister_irq_ack_notifier(struct kvm *kvm, |
440 | struct kvm_irq_ack_notifier *kian); | |
5550af4d SY |
441 | int kvm_request_irq_source_id(struct kvm *kvm); |
442 | void kvm_free_irq_source_id(struct kvm *kvm, int irq_source_id); | |
62c476c7 | 443 | |
522c68c4 SY |
444 | /* For vcpu->arch.iommu_flags */ |
445 | #define KVM_IOMMU_CACHE_COHERENCY 0x1 | |
446 | ||
19de40a8 | 447 | #ifdef CONFIG_IOMMU_API |
3ad26d81 | 448 | int kvm_iommu_map_pages(struct kvm *kvm, struct kvm_memory_slot *slot); |
260782bc | 449 | int kvm_iommu_map_guest(struct kvm *kvm); |
62c476c7 | 450 | int kvm_iommu_unmap_guest(struct kvm *kvm); |
260782bc WH |
451 | int kvm_assign_device(struct kvm *kvm, |
452 | struct kvm_assigned_dev_kernel *assigned_dev); | |
0a920356 WH |
453 | int kvm_deassign_device(struct kvm *kvm, |
454 | struct kvm_assigned_dev_kernel *assigned_dev); | |
19de40a8 | 455 | #else /* CONFIG_IOMMU_API */ |
62c476c7 BAY |
456 | static inline int kvm_iommu_map_pages(struct kvm *kvm, |
457 | gfn_t base_gfn, | |
458 | unsigned long npages) | |
459 | { | |
460 | return 0; | |
461 | } | |
462 | ||
260782bc | 463 | static inline int kvm_iommu_map_guest(struct kvm *kvm) |
62c476c7 BAY |
464 | { |
465 | return -ENODEV; | |
466 | } | |
467 | ||
468 | static inline int kvm_iommu_unmap_guest(struct kvm *kvm) | |
469 | { | |
470 | return 0; | |
471 | } | |
260782bc WH |
472 | |
473 | static inline int kvm_assign_device(struct kvm *kvm, | |
474 | struct kvm_assigned_dev_kernel *assigned_dev) | |
475 | { | |
476 | return 0; | |
477 | } | |
0a920356 WH |
478 | |
479 | static inline int kvm_deassign_device(struct kvm *kvm, | |
480 | struct kvm_assigned_dev_kernel *assigned_dev) | |
481 | { | |
482 | return 0; | |
483 | } | |
19de40a8 | 484 | #endif /* CONFIG_IOMMU_API */ |
62c476c7 | 485 | |
d172fcd3 LV |
486 | static inline void kvm_guest_enter(void) |
487 | { | |
e56a7a28 | 488 | account_system_vtime(current); |
d172fcd3 LV |
489 | current->flags |= PF_VCPU; |
490 | } | |
491 | ||
492 | static inline void kvm_guest_exit(void) | |
493 | { | |
e56a7a28 | 494 | account_system_vtime(current); |
d172fcd3 LV |
495 | current->flags &= ~PF_VCPU; |
496 | } | |
497 | ||
1755fbcc AK |
498 | static inline gpa_t gfn_to_gpa(gfn_t gfn) |
499 | { | |
500 | return (gpa_t)gfn << PAGE_SHIFT; | |
501 | } | |
6aa8b732 | 502 | |
62c476c7 BAY |
503 | static inline hpa_t pfn_to_hpa(pfn_t pfn) |
504 | { | |
505 | return (hpa_t)pfn << PAGE_SHIFT; | |
506 | } | |
507 | ||
2f599714 | 508 | static inline void kvm_migrate_timers(struct kvm_vcpu *vcpu) |
2f52d58c AK |
509 | { |
510 | set_bit(KVM_REQ_MIGRATE_TIMER, &vcpu->requests); | |
511 | } | |
512 | ||
ba1389b7 AK |
513 | enum kvm_stat_kind { |
514 | KVM_STAT_VM, | |
515 | KVM_STAT_VCPU, | |
516 | }; | |
517 | ||
417bc304 HB |
518 | struct kvm_stats_debugfs_item { |
519 | const char *name; | |
520 | int offset; | |
ba1389b7 | 521 | enum kvm_stat_kind kind; |
417bc304 HB |
522 | struct dentry *dentry; |
523 | }; | |
524 | extern struct kvm_stats_debugfs_item debugfs_entries[]; | |
76f7c879 | 525 | extern struct dentry *kvm_debugfs_dir; |
d4c9ff2d | 526 | |
e930bffe AA |
527 | #ifdef KVM_ARCH_WANT_MMU_NOTIFIER |
528 | static inline int mmu_notifier_retry(struct kvm_vcpu *vcpu, unsigned long mmu_seq) | |
529 | { | |
530 | if (unlikely(vcpu->kvm->mmu_notifier_count)) | |
531 | return 1; | |
532 | /* | |
533 | * Both reads happen under the mmu_lock and both values are | |
534 | * modified under mmu_lock, so there's no need of smb_rmb() | |
535 | * here in between, otherwise mmu_notifier_count should be | |
536 | * read before mmu_notifier_seq, see | |
537 | * mmu_notifier_invalidate_range_end write side. | |
538 | */ | |
539 | if (vcpu->kvm->mmu_notifier_seq != mmu_seq) | |
540 | return 1; | |
541 | return 0; | |
542 | } | |
543 | #endif | |
544 | ||
a983fb23 MT |
545 | #ifndef KVM_ARCH_HAS_UNALIAS_INSTANTIATION |
546 | #define unalias_gfn_instantiation unalias_gfn | |
547 | #endif | |
548 | ||
399ec807 AK |
549 | #ifdef CONFIG_HAVE_KVM_IRQCHIP |
550 | ||
551 | #define KVM_MAX_IRQ_ROUTES 1024 | |
552 | ||
553 | int kvm_setup_default_irq_routing(struct kvm *kvm); | |
554 | int kvm_set_irq_routing(struct kvm *kvm, | |
555 | const struct kvm_irq_routing_entry *entries, | |
556 | unsigned nr, | |
557 | unsigned flags); | |
558 | void kvm_free_irq_routing(struct kvm *kvm); | |
559 | ||
560 | #else | |
561 | ||
562 | static inline void kvm_free_irq_routing(struct kvm *kvm) {} | |
563 | ||
564 | #endif | |
565 | ||
721eecbf GH |
566 | #ifdef CONFIG_HAVE_KVM_EVENTFD |
567 | ||
d34e6b17 | 568 | void kvm_eventfd_init(struct kvm *kvm); |
721eecbf GH |
569 | int kvm_irqfd(struct kvm *kvm, int fd, int gsi, int flags); |
570 | void kvm_irqfd_release(struct kvm *kvm); | |
d34e6b17 | 571 | int kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args); |
721eecbf GH |
572 | |
573 | #else | |
574 | ||
d34e6b17 | 575 | static inline void kvm_eventfd_init(struct kvm *kvm) {} |
721eecbf GH |
576 | static inline int kvm_irqfd(struct kvm *kvm, int fd, int gsi, int flags) |
577 | { | |
578 | return -EINVAL; | |
579 | } | |
580 | ||
581 | static inline void kvm_irqfd_release(struct kvm *kvm) {} | |
d34e6b17 GH |
582 | static inline int kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args) |
583 | { | |
584 | return -ENOSYS; | |
585 | } | |
721eecbf GH |
586 | |
587 | #endif /* CONFIG_HAVE_KVM_EVENTFD */ | |
588 | ||
73880c80 | 589 | #ifdef CONFIG_KVM_APIC_ARCHITECTURE |
c5af89b6 GN |
590 | static inline bool kvm_vcpu_is_bsp(struct kvm_vcpu *vcpu) |
591 | { | |
d3efc8ef | 592 | return vcpu->kvm->bsp_vcpu_id == vcpu->vcpu_id; |
c5af89b6 | 593 | } |
6aa8b732 | 594 | #endif |
bfd99ff5 AK |
595 | |
596 | #ifdef __KVM_HAVE_DEVICE_ASSIGNMENT | |
597 | ||
598 | long kvm_vm_ioctl_assigned_device(struct kvm *kvm, unsigned ioctl, | |
599 | unsigned long arg); | |
600 | ||
601 | #else | |
602 | ||
603 | static inline long kvm_vm_ioctl_assigned_device(struct kvm *kvm, unsigned ioctl, | |
604 | unsigned long arg) | |
605 | { | |
606 | return -ENOTTY; | |
607 | } | |
608 | ||
73880c80 | 609 | #endif |
bfd99ff5 AK |
610 | |
611 | #endif | |
612 |