5 * This work is licensed under the terms of the GNU GPL, version 2. See
6 * the COPYING file in the top-level directory.
9 #include <linux/types.h>
10 #include <linux/hardirq.h>
11 #include <linux/list.h>
12 #include <linux/mutex.h>
13 #include <linux/spinlock.h>
14 #include <linux/signal.h>
15 #include <linux/sched.h>
17 #include <linux/preempt.h>
18 #include <linux/msi.h>
19 #include <linux/slab.h>
20 #include <linux/rcupdate.h>
21 #include <asm/signal.h>
23 #include <linux/kvm.h>
24 #include <linux/kvm_para.h>
26 #include <linux/kvm_types.h>
28 #include <asm/kvm_host.h>
31 * vcpu->requests bit members
33 #define KVM_REQ_TLB_FLUSH 0
34 #define KVM_REQ_MIGRATE_TIMER 1
35 #define KVM_REQ_REPORT_TPR_ACCESS 2
36 #define KVM_REQ_MMU_RELOAD 3
37 #define KVM_REQ_TRIPLE_FAULT 4
38 #define KVM_REQ_PENDING_TIMER 5
39 #define KVM_REQ_UNHALT 6
40 #define KVM_REQ_MMU_SYNC 7
41 #define KVM_REQ_CLOCK_UPDATE 8
42 #define KVM_REQ_KICK 9
43 #define KVM_REQ_DEACTIVATE_FPU 10
44 #define KVM_REQ_EVENT 11
45 #define KVM_REQ_APF_HALT 12
47 #define KVM_USERSPACE_IRQ_SOURCE_ID 0
51 extern struct kmem_cache *kvm_vcpu_cache;
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
61 #define NR_IOBUS_DEVS 200
62 struct kvm_io_device *devs[NR_IOBUS_DEVS];
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,
75 int kvm_io_bus_register_dev(struct kvm *kvm, enum kvm_bus bus_idx,
76 struct kvm_io_device *dev);
77 int kvm_io_bus_unregister_dev(struct kvm *kvm, enum kvm_bus bus_idx,
78 struct kvm_io_device *dev);
80 #ifdef CONFIG_KVM_ASYNC_PF
82 struct work_struct work;
83 struct list_head link;
84 struct list_head queue;
85 struct kvm_vcpu *vcpu;
89 struct kvm_arch_async_pf arch;
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);
98 int kvm_async_pf_wakeup_all(struct kvm_vcpu *vcpu);
109 #ifdef CONFIG_PREEMPT_NOTIFIERS
110 struct preempt_notifier preempt_notifier;
116 unsigned long requests;
117 unsigned long guest_debug;
123 int guest_fpu_loaded, guest_xcr0_loaded;
124 wait_queue_head_t wq;
127 struct kvm_vcpu_stat stat;
129 #ifdef CONFIG_HAS_IOMEM
131 int mmio_read_completed;
134 unsigned char mmio_data[8];
135 gpa_t mmio_phys_addr;
138 #ifdef CONFIG_KVM_ASYNC_PF
141 struct list_head queue;
142 struct list_head done;
147 struct kvm_vcpu_arch arch;
150 static inline int kvm_vcpu_exiting_guest_mode(struct kvm_vcpu *vcpu)
152 return cmpxchg(&vcpu->mode, IN_GUEST_MODE, EXITING_GUEST_MODE);
156 * Some of the bitops functions do not support too long bitmaps.
157 * This number must be determined not to exceed such limits.
159 #define KVM_MEM_MAX_NR_PAGES ((1UL << 31) - 1)
161 struct kvm_lpage_info {
162 unsigned long rmap_pde;
166 struct kvm_memory_slot {
168 unsigned long npages;
171 unsigned long *dirty_bitmap;
172 unsigned long *dirty_bitmap_head;
173 struct kvm_lpage_info *lpage_info[KVM_NR_PAGE_SIZES - 1];
174 unsigned long userspace_addr;
179 static inline unsigned long kvm_dirty_bitmap_bytes(struct kvm_memory_slot *memslot)
181 return ALIGN(memslot->npages, BITS_PER_LONG) / 8;
184 struct kvm_kernel_irq_routing_entry {
187 int (*set)(struct kvm_kernel_irq_routing_entry *e,
188 struct kvm *kvm, int irq_source_id, int level);
196 struct hlist_node link;
199 #ifdef __KVM_HAVE_IOAPIC
201 struct kvm_irq_routing_table {
202 int chip[KVM_NR_IRQCHIPS][KVM_IOAPIC_NUM_PINS];
203 struct kvm_kernel_irq_routing_entry *rt_entries;
206 * Array indexed by gsi. Each entry contains list of irq chips
207 * the gsi is connected to.
209 struct hlist_head map[0];
214 struct kvm_irq_routing_table {};
218 struct kvm_memslots {
221 struct kvm_memory_slot memslots[KVM_MEMORY_SLOTS +
222 KVM_PRIVATE_MEM_SLOTS];
227 struct mutex slots_lock;
228 struct mm_struct *mm; /* userspace tied to this vm */
229 struct kvm_memslots *memslots;
230 struct srcu_struct srcu;
231 #ifdef CONFIG_KVM_APIC_ARCHITECTURE
233 struct kvm_vcpu *bsp_vcpu;
235 struct kvm_vcpu *vcpus[KVM_MAX_VCPUS];
236 atomic_t online_vcpus;
237 struct list_head vm_list;
239 struct kvm_io_bus *buses[KVM_NR_BUSES];
240 #ifdef CONFIG_HAVE_KVM_EVENTFD
243 struct list_head items;
245 struct list_head ioeventfds;
247 struct kvm_vm_stat stat;
248 struct kvm_arch arch;
249 atomic_t users_count;
250 #ifdef KVM_COALESCED_MMIO_PAGE_OFFSET
251 struct kvm_coalesced_mmio_dev *coalesced_mmio_dev;
252 struct kvm_coalesced_mmio_ring *coalesced_mmio_ring;
255 struct mutex irq_lock;
256 #ifdef CONFIG_HAVE_KVM_IRQCHIP
258 * Update side is protected by irq_lock and,
259 * if configured, irqfds.lock.
261 struct kvm_irq_routing_table __rcu *irq_routing;
262 struct hlist_head mask_notifier_list;
263 struct hlist_head irq_ack_notifier_list;
266 #ifdef KVM_ARCH_WANT_MMU_NOTIFIER
267 struct mmu_notifier mmu_notifier;
268 unsigned long mmu_notifier_seq;
269 long mmu_notifier_count;
274 /* The guest did something we don't support. */
275 #define pr_unimpl(vcpu, fmt, ...) \
277 if (printk_ratelimit()) \
278 printk(KERN_ERR "kvm: %i: cpu%i " fmt, \
279 current->tgid, (vcpu)->vcpu_id , ## __VA_ARGS__); \
282 #define kvm_printf(kvm, fmt ...) printk(KERN_DEBUG fmt)
283 #define vcpu_printf(vcpu, fmt...) kvm_printf(vcpu->kvm, fmt)
285 static inline struct kvm_vcpu *kvm_get_vcpu(struct kvm *kvm, int i)
288 return kvm->vcpus[i];
291 #define kvm_for_each_vcpu(idx, vcpup, kvm) \
292 for (idx = 0, vcpup = kvm_get_vcpu(kvm, idx); \
293 idx < atomic_read(&kvm->online_vcpus) && vcpup; \
294 vcpup = kvm_get_vcpu(kvm, ++idx))
296 int kvm_vcpu_init(struct kvm_vcpu *vcpu, struct kvm *kvm, unsigned id);
297 void kvm_vcpu_uninit(struct kvm_vcpu *vcpu);
299 void vcpu_load(struct kvm_vcpu *vcpu);
300 void vcpu_put(struct kvm_vcpu *vcpu);
302 int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align,
303 struct module *module);
306 void kvm_get_kvm(struct kvm *kvm);
307 void kvm_put_kvm(struct kvm *kvm);
309 static inline struct kvm_memslots *kvm_memslots(struct kvm *kvm)
311 return rcu_dereference_check(kvm->memslots,
312 srcu_read_lock_held(&kvm->srcu)
313 || lockdep_is_held(&kvm->slots_lock));
316 #define HPA_MSB ((sizeof(hpa_t) * 8) - 1)
317 #define HPA_ERR_MASK ((hpa_t)1 << HPA_MSB)
318 static inline int is_error_hpa(hpa_t hpa) { return hpa >> HPA_MSB; }
320 extern struct page *bad_page;
321 extern pfn_t bad_pfn;
323 int is_error_page(struct page *page);
324 int is_error_pfn(pfn_t pfn);
325 int is_hwpoison_pfn(pfn_t pfn);
326 int is_fault_pfn(pfn_t pfn);
327 int kvm_is_error_hva(unsigned long addr);
328 int kvm_set_memory_region(struct kvm *kvm,
329 struct kvm_userspace_memory_region *mem,
331 int __kvm_set_memory_region(struct kvm *kvm,
332 struct kvm_userspace_memory_region *mem,
334 int kvm_arch_prepare_memory_region(struct kvm *kvm,
335 struct kvm_memory_slot *memslot,
336 struct kvm_memory_slot old,
337 struct kvm_userspace_memory_region *mem,
339 void kvm_arch_commit_memory_region(struct kvm *kvm,
340 struct kvm_userspace_memory_region *mem,
341 struct kvm_memory_slot old,
343 void kvm_disable_largepages(void);
344 void kvm_arch_flush_shadow(struct kvm *kvm);
346 int gfn_to_page_many_atomic(struct kvm *kvm, gfn_t gfn, struct page **pages,
349 struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn);
350 unsigned long gfn_to_hva(struct kvm *kvm, gfn_t gfn);
351 void kvm_release_page_clean(struct page *page);
352 void kvm_release_page_dirty(struct page *page);
353 void kvm_set_page_dirty(struct page *page);
354 void kvm_set_page_accessed(struct page *page);
356 pfn_t hva_to_pfn_atomic(struct kvm *kvm, unsigned long addr);
357 pfn_t gfn_to_pfn_atomic(struct kvm *kvm, gfn_t gfn);
358 pfn_t gfn_to_pfn_async(struct kvm *kvm, gfn_t gfn, bool *async,
359 bool write_fault, bool *writable);
360 pfn_t gfn_to_pfn(struct kvm *kvm, gfn_t gfn);
361 pfn_t gfn_to_pfn_prot(struct kvm *kvm, gfn_t gfn, bool write_fault,
363 pfn_t gfn_to_pfn_memslot(struct kvm *kvm,
364 struct kvm_memory_slot *slot, gfn_t gfn);
365 int memslot_id(struct kvm *kvm, gfn_t gfn);
366 void kvm_release_pfn_dirty(pfn_t);
367 void kvm_release_pfn_clean(pfn_t pfn);
368 void kvm_set_pfn_dirty(pfn_t pfn);
369 void kvm_set_pfn_accessed(pfn_t pfn);
370 void kvm_get_pfn(pfn_t pfn);
372 int kvm_read_guest_page(struct kvm *kvm, gfn_t gfn, void *data, int offset,
374 int kvm_read_guest_atomic(struct kvm *kvm, gpa_t gpa, void *data,
376 int kvm_read_guest(struct kvm *kvm, gpa_t gpa, void *data, unsigned long len);
377 int kvm_write_guest_page(struct kvm *kvm, gfn_t gfn, const void *data,
378 int offset, int len);
379 int kvm_write_guest(struct kvm *kvm, gpa_t gpa, const void *data,
381 int kvm_write_guest_cached(struct kvm *kvm, struct gfn_to_hva_cache *ghc,
382 void *data, unsigned long len);
383 int kvm_gfn_to_hva_cache_init(struct kvm *kvm, struct gfn_to_hva_cache *ghc,
385 int kvm_clear_guest_page(struct kvm *kvm, gfn_t gfn, int offset, int len);
386 int kvm_clear_guest(struct kvm *kvm, gpa_t gpa, unsigned long len);
387 struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn);
388 int kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn);
389 unsigned long kvm_host_page_size(struct kvm *kvm, gfn_t gfn);
390 void mark_page_dirty(struct kvm *kvm, gfn_t gfn);
391 void mark_page_dirty_in_slot(struct kvm *kvm, struct kvm_memory_slot *memslot,
394 void kvm_vcpu_block(struct kvm_vcpu *vcpu);
395 void kvm_vcpu_on_spin(struct kvm_vcpu *vcpu);
396 void kvm_resched(struct kvm_vcpu *vcpu);
397 void kvm_load_guest_fpu(struct kvm_vcpu *vcpu);
398 void kvm_put_guest_fpu(struct kvm_vcpu *vcpu);
400 void kvm_flush_remote_tlbs(struct kvm *kvm);
401 void kvm_reload_remote_mmus(struct kvm *kvm);
403 long kvm_arch_dev_ioctl(struct file *filp,
404 unsigned int ioctl, unsigned long arg);
405 long kvm_arch_vcpu_ioctl(struct file *filp,
406 unsigned int ioctl, unsigned long arg);
408 int kvm_dev_ioctl_check_extension(long ext);
410 int kvm_get_dirty_log(struct kvm *kvm,
411 struct kvm_dirty_log *log, int *is_dirty);
412 int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm,
413 struct kvm_dirty_log *log);
415 int kvm_vm_ioctl_set_memory_region(struct kvm *kvm,
417 kvm_userspace_memory_region *mem,
419 long kvm_arch_vm_ioctl(struct file *filp,
420 unsigned int ioctl, unsigned long arg);
422 int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu);
423 int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu);
425 int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
426 struct kvm_translation *tr);
428 int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs);
429 int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs);
430 int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
431 struct kvm_sregs *sregs);
432 int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
433 struct kvm_sregs *sregs);
434 int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu,
435 struct kvm_mp_state *mp_state);
436 int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu,
437 struct kvm_mp_state *mp_state);
438 int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
439 struct kvm_guest_debug *dbg);
440 int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run);
442 int kvm_arch_init(void *opaque);
443 void kvm_arch_exit(void);
445 int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu);
446 void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu);
448 void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu);
449 void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
450 void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu);
451 struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id);
452 int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu);
453 void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu);
455 int kvm_arch_vcpu_reset(struct kvm_vcpu *vcpu);
456 int kvm_arch_hardware_enable(void *garbage);
457 void kvm_arch_hardware_disable(void *garbage);
458 int kvm_arch_hardware_setup(void);
459 void kvm_arch_hardware_unsetup(void);
460 void kvm_arch_check_processor_compat(void *rtn);
461 int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu);
463 void kvm_free_physmem(struct kvm *kvm);
465 #ifndef __KVM_HAVE_ARCH_VM_ALLOC
466 static inline struct kvm *kvm_arch_alloc_vm(void)
468 return kzalloc(sizeof(struct kvm), GFP_KERNEL);
471 static inline void kvm_arch_free_vm(struct kvm *kvm)
477 int kvm_arch_init_vm(struct kvm *kvm);
478 void kvm_arch_destroy_vm(struct kvm *kvm);
479 void kvm_free_all_assigned_devices(struct kvm *kvm);
480 void kvm_arch_sync_events(struct kvm *kvm);
482 int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu);
483 void kvm_vcpu_kick(struct kvm_vcpu *vcpu);
485 int kvm_is_mmio_pfn(pfn_t pfn);
487 struct kvm_irq_ack_notifier {
488 struct hlist_node link;
490 void (*irq_acked)(struct kvm_irq_ack_notifier *kian);
493 struct kvm_assigned_dev_kernel {
494 struct kvm_irq_ack_notifier ack_notifier;
495 struct list_head list;
500 unsigned int entries_nr;
502 bool host_irq_disabled;
503 struct msix_entry *host_msix_entries;
505 struct msix_entry *guest_msix_entries;
506 unsigned long irq_requested_type;
511 spinlock_t intx_lock;
515 struct kvm_irq_mask_notifier {
516 void (*func)(struct kvm_irq_mask_notifier *kimn, bool masked);
518 struct hlist_node link;
521 void kvm_register_irq_mask_notifier(struct kvm *kvm, int irq,
522 struct kvm_irq_mask_notifier *kimn);
523 void kvm_unregister_irq_mask_notifier(struct kvm *kvm, int irq,
524 struct kvm_irq_mask_notifier *kimn);
525 void kvm_fire_mask_notifiers(struct kvm *kvm, unsigned irqchip, unsigned pin,
528 #ifdef __KVM_HAVE_IOAPIC
529 void kvm_get_intr_delivery_bitmask(struct kvm_ioapic *ioapic,
530 union kvm_ioapic_redirect_entry *entry,
531 unsigned long *deliver_bitmask);
533 int kvm_set_irq(struct kvm *kvm, int irq_source_id, u32 irq, int level);
534 int kvm_set_msi(struct kvm_kernel_irq_routing_entry *irq_entry, struct kvm *kvm,
535 int irq_source_id, int level);
536 void kvm_notify_acked_irq(struct kvm *kvm, unsigned irqchip, unsigned pin);
537 void kvm_register_irq_ack_notifier(struct kvm *kvm,
538 struct kvm_irq_ack_notifier *kian);
539 void kvm_unregister_irq_ack_notifier(struct kvm *kvm,
540 struct kvm_irq_ack_notifier *kian);
541 int kvm_request_irq_source_id(struct kvm *kvm);
542 void kvm_free_irq_source_id(struct kvm *kvm, int irq_source_id);
544 /* For vcpu->arch.iommu_flags */
545 #define KVM_IOMMU_CACHE_COHERENCY 0x1
547 #ifdef CONFIG_IOMMU_API
548 int kvm_iommu_map_pages(struct kvm *kvm, struct kvm_memory_slot *slot);
549 int kvm_iommu_map_guest(struct kvm *kvm);
550 int kvm_iommu_unmap_guest(struct kvm *kvm);
551 int kvm_assign_device(struct kvm *kvm,
552 struct kvm_assigned_dev_kernel *assigned_dev);
553 int kvm_deassign_device(struct kvm *kvm,
554 struct kvm_assigned_dev_kernel *assigned_dev);
555 #else /* CONFIG_IOMMU_API */
556 static inline int kvm_iommu_map_pages(struct kvm *kvm,
557 struct kvm_memory_slot *slot)
562 static inline int kvm_iommu_map_guest(struct kvm *kvm)
567 static inline int kvm_iommu_unmap_guest(struct kvm *kvm)
572 static inline int kvm_assign_device(struct kvm *kvm,
573 struct kvm_assigned_dev_kernel *assigned_dev)
578 static inline int kvm_deassign_device(struct kvm *kvm,
579 struct kvm_assigned_dev_kernel *assigned_dev)
583 #endif /* CONFIG_IOMMU_API */
585 static inline void kvm_guest_enter(void)
587 account_system_vtime(current);
588 current->flags |= PF_VCPU;
591 static inline void kvm_guest_exit(void)
593 account_system_vtime(current);
594 current->flags &= ~PF_VCPU;
597 static inline unsigned long gfn_to_hva_memslot(struct kvm_memory_slot *slot,
600 return slot->userspace_addr + (gfn - slot->base_gfn) * PAGE_SIZE;
603 static inline gpa_t gfn_to_gpa(gfn_t gfn)
605 return (gpa_t)gfn << PAGE_SHIFT;
608 static inline gfn_t gpa_to_gfn(gpa_t gpa)
610 return (gfn_t)(gpa >> PAGE_SHIFT);
613 static inline hpa_t pfn_to_hpa(pfn_t pfn)
615 return (hpa_t)pfn << PAGE_SHIFT;
618 static inline void kvm_migrate_timers(struct kvm_vcpu *vcpu)
620 set_bit(KVM_REQ_MIGRATE_TIMER, &vcpu->requests);
628 struct kvm_stats_debugfs_item {
631 enum kvm_stat_kind kind;
632 struct dentry *dentry;
634 extern struct kvm_stats_debugfs_item debugfs_entries[];
635 extern struct dentry *kvm_debugfs_dir;
637 #ifdef KVM_ARCH_WANT_MMU_NOTIFIER
638 static inline int mmu_notifier_retry(struct kvm_vcpu *vcpu, unsigned long mmu_seq)
640 if (unlikely(vcpu->kvm->mmu_notifier_count))
643 * Both reads happen under the mmu_lock and both values are
644 * modified under mmu_lock, so there's no need of smb_rmb()
645 * here in between, otherwise mmu_notifier_count should be
646 * read before mmu_notifier_seq, see
647 * mmu_notifier_invalidate_range_end write side.
649 if (vcpu->kvm->mmu_notifier_seq != mmu_seq)
655 #ifdef CONFIG_HAVE_KVM_IRQCHIP
657 #define KVM_MAX_IRQ_ROUTES 1024
659 int kvm_setup_default_irq_routing(struct kvm *kvm);
660 int kvm_set_irq_routing(struct kvm *kvm,
661 const struct kvm_irq_routing_entry *entries,
664 void kvm_free_irq_routing(struct kvm *kvm);
668 static inline void kvm_free_irq_routing(struct kvm *kvm) {}
672 #ifdef CONFIG_HAVE_KVM_EVENTFD
674 void kvm_eventfd_init(struct kvm *kvm);
675 int kvm_irqfd(struct kvm *kvm, int fd, int gsi, int flags);
676 void kvm_irqfd_release(struct kvm *kvm);
677 void kvm_irq_routing_update(struct kvm *, struct kvm_irq_routing_table *);
678 int kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args);
682 static inline void kvm_eventfd_init(struct kvm *kvm) {}
684 static inline int kvm_irqfd(struct kvm *kvm, int fd, int gsi, int flags)
689 static inline void kvm_irqfd_release(struct kvm *kvm) {}
691 #ifdef CONFIG_HAVE_KVM_IRQCHIP
692 static inline void kvm_irq_routing_update(struct kvm *kvm,
693 struct kvm_irq_routing_table *irq_rt)
695 rcu_assign_pointer(kvm->irq_routing, irq_rt);
699 static inline int kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args)
704 #endif /* CONFIG_HAVE_KVM_EVENTFD */
706 #ifdef CONFIG_KVM_APIC_ARCHITECTURE
707 static inline bool kvm_vcpu_is_bsp(struct kvm_vcpu *vcpu)
709 return vcpu->kvm->bsp_vcpu_id == vcpu->vcpu_id;
713 #ifdef __KVM_HAVE_DEVICE_ASSIGNMENT
715 long kvm_vm_ioctl_assigned_device(struct kvm *kvm, unsigned ioctl,
720 static inline long kvm_vm_ioctl_assigned_device(struct kvm *kvm, unsigned ioctl,
728 static inline void kvm_make_request(int req, struct kvm_vcpu *vcpu)
730 set_bit(req, &vcpu->requests);
733 static inline bool kvm_check_request(int req, struct kvm_vcpu *vcpu)
735 if (test_bit(req, &vcpu->requests)) {
736 clear_bit(req, &vcpu->requests);