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Avi Kivityedf88412007-12-16 11:02:48 +02001#ifndef __KVM_HOST_H
2#define __KVM_HOST_H
Avi Kivity6aa8b732006-12-10 02:21:36 -08003
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>
Christian Borntraegere56a7a22007-10-18 14:39:10 +020010#include <linux/hardirq.h>
Avi Kivity6aa8b732006-12-10 02:21:36 -080011#include <linux/list.h>
12#include <linux/mutex.h>
13#include <linux/spinlock.h>
Markus Rechberger06ff0d32007-05-27 10:46:52 +030014#include <linux/signal.h>
15#include <linux/sched.h>
Avi Kivity6aa8b732006-12-10 02:21:36 -080016#include <linux/mm.h>
Avi Kivity15ad7142007-07-11 18:17:21 +030017#include <linux/preempt.h>
Sheng Yang0937c482008-11-24 14:32:53 +080018#include <linux/msi.h>
Jan Kiszkad89f5ef2010-11-09 17:02:49 +010019#include <linux/slab.h>
Michael S. Tsirkinbd2b53b2010-11-18 19:09:08 +020020#include <linux/rcupdate.h>
Alexey Dobriyane8edc6e2007-05-21 01:22:52 +040021#include <asm/signal.h>
Avi Kivity6aa8b732006-12-10 02:21:36 -080022
Avi Kivity6aa8b732006-12-10 02:21:36 -080023#include <linux/kvm.h>
Ingo Molnar102d8322007-02-19 14:37:47 +020024#include <linux/kvm_para.h>
Avi Kivity6aa8b732006-12-10 02:21:36 -080025
Avi Kivityedf88412007-12-16 11:02:48 +020026#include <linux/kvm_types.h>
Hollis Blanchardd77a39d2007-12-03 15:30:23 -060027
Avi Kivityedf88412007-12-16 11:02:48 +020028#include <asm/kvm_host.h>
Zhang Xiantaod657a982007-12-14 09:41:22 +080029
Avi Kivity6aa8b732006-12-10 02:21:36 -080030/*
Avi Kivityd9e368d2007-06-07 19:18:30 +030031 * vcpu->requests bit members
32 */
Avi Kivity3176bc32007-10-16 17:22:08 +020033#define KVM_REQ_TLB_FLUSH 0
Avi Kivity2f52d582008-01-16 12:49:30 +020034#define KVM_REQ_MIGRATE_TIMER 1
Avi Kivityb209749f2007-10-22 16:50:39 +020035#define KVM_REQ_REPORT_TPR_ACCESS 2
Marcelo Tosatti2e53d632008-02-20 14:47:24 -050036#define KVM_REQ_MMU_RELOAD 3
Joerg Roedel71c4dfa2008-02-26 16:49:16 +010037#define KVM_REQ_TRIPLE_FAULT 4
Marcelo Tosatti06e05642008-06-06 16:37:36 -030038#define KVM_REQ_PENDING_TIMER 5
Marcelo Tosattid7690172008-09-08 15:23:48 -030039#define KVM_REQ_UNHALT 6
Marcelo Tosatti4731d4c2008-09-23 13:18:39 -030040#define KVM_REQ_MMU_SYNC 7
Zachary Amsden34c238a2010-09-18 14:38:14 -100041#define KVM_REQ_CLOCK_UPDATE 8
Marcelo Tosatti32f88402009-05-07 17:55:12 -030042#define KVM_REQ_KICK 9
Avi Kivity02daab22009-12-30 12:40:26 +020043#define KVM_REQ_DEACTIVATE_FPU 10
Avi Kivity3842d132010-07-27 12:30:24 +030044#define KVM_REQ_EVENT 11
Gleb Natapovaf585b92010-10-14 11:22:46 +020045#define KVM_REQ_APF_HALT 12
Avi Kivityf8636842011-02-03 15:07:07 +020046#define KVM_REQ_NMI 13
Avi Kivity6aa8b732006-12-10 02:21:36 -080047
Sheng Yang5550af42008-10-15 20:15:06 +080048#define KVM_USERSPACE_IRQ_SOURCE_ID 0
49
Michael S. Tsirkin6c474692009-06-29 22:24:26 +030050struct kvm;
Avi Kivity6aa8b732006-12-10 02:21:36 -080051struct kvm_vcpu;
Rusty Russellc16f8622007-07-30 21:12:19 +100052extern struct kmem_cache *kvm_vcpu_cache;
Avi Kivity6aa8b732006-12-10 02:21:36 -080053
Gregory Haskins2eeb2e92007-05-31 14:08:53 -040054/*
55 * It would be nice to use something smarter than a linear search, TBD...
56 * Thankfully we dont expect many devices to register (famous last words :),
57 * so until then it will suffice. At least its abstracted so we can change
58 * in one place.
59 */
60struct kvm_io_bus {
61 int dev_count;
Sridhar Samudralae80e2a62010-03-30 16:48:25 -070062#define NR_IOBUS_DEVS 200
Gregory Haskins2eeb2e92007-05-31 14:08:53 -040063 struct kvm_io_device *devs[NR_IOBUS_DEVS];
64};
65
Marcelo Tosattie93f8a02009-12-23 14:35:24 -020066enum kvm_bus {
67 KVM_MMIO_BUS,
68 KVM_PIO_BUS,
69 KVM_NR_BUSES
70};
71
72int kvm_io_bus_write(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr,
73 int len, const void *val);
74int kvm_io_bus_read(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr, int len,
Michael S. Tsirkinbda90202009-06-29 22:24:32 +030075 void *val);
Marcelo Tosattie93f8a02009-12-23 14:35:24 -020076int kvm_io_bus_register_dev(struct kvm *kvm, enum kvm_bus bus_idx,
Gregory Haskins090b7af2009-07-07 17:08:44 -040077 struct kvm_io_device *dev);
Marcelo Tosattie93f8a02009-12-23 14:35:24 -020078int kvm_io_bus_unregister_dev(struct kvm *kvm, enum kvm_bus bus_idx,
79 struct kvm_io_device *dev);
Gregory Haskins2eeb2e92007-05-31 14:08:53 -040080
Gleb Natapovaf585b92010-10-14 11:22:46 +020081#ifdef CONFIG_KVM_ASYNC_PF
82struct kvm_async_pf {
83 struct work_struct work;
84 struct list_head link;
85 struct list_head queue;
86 struct kvm_vcpu *vcpu;
87 struct mm_struct *mm;
88 gva_t gva;
89 unsigned long addr;
90 struct kvm_arch_async_pf arch;
91 struct page *page;
92 bool done;
93};
94
95void kvm_clear_async_pf_completion_queue(struct kvm_vcpu *vcpu);
96void kvm_check_async_pf_completion(struct kvm_vcpu *vcpu);
97int kvm_setup_async_pf(struct kvm_vcpu *vcpu, gva_t gva, gfn_t gfn,
98 struct kvm_arch_async_pf *arch);
Gleb Natapov344d9582010-10-14 11:22:50 +020099int kvm_async_pf_wakeup_all(struct kvm_vcpu *vcpu);
Gleb Natapovaf585b92010-10-14 11:22:46 +0200100#endif
101
Xiao Guangrong6b7e2d02011-01-12 15:40:31 +0800102enum {
103 OUTSIDE_GUEST_MODE,
104 IN_GUEST_MODE,
105 EXITING_GUEST_MODE
106};
107
Zhang Xiantaod657a982007-12-14 09:41:22 +0800108struct kvm_vcpu {
Zhang Xiantaod17fbbf2007-12-14 09:45:31 +0800109 struct kvm *kvm;
Hollis Blanchard31bb1172008-01-28 17:42:34 -0600110#ifdef CONFIG_PREEMPT_NOTIFIERS
Zhang Xiantaod17fbbf2007-12-14 09:45:31 +0800111 struct preempt_notifier preempt_notifier;
Hollis Blanchard31bb1172008-01-28 17:42:34 -0600112#endif
Xiao Guangrong6b7e2d02011-01-12 15:40:31 +0800113 int cpu;
Zhang Xiantaod17fbbf2007-12-14 09:45:31 +0800114 int vcpu_id;
Xiao Guangrong6b7e2d02011-01-12 15:40:31 +0800115 int srcu_idx;
116 int mode;
Zhang Xiantaod17fbbf2007-12-14 09:45:31 +0800117 unsigned long requests;
Jan Kiszkad0bfb942008-12-15 13:52:10 +0100118 unsigned long guest_debug;
Xiao Guangrong6b7e2d02011-01-12 15:40:31 +0800119
120 struct mutex mutex;
121 struct kvm_run *run;
Marcelo Tosattif656ce02009-12-23 14:35:25 -0200122
Zhang Xiantaod17fbbf2007-12-14 09:45:31 +0800123 int fpu_active;
Dexuan Cui2acf9232010-06-10 11:27:12 +0800124 int guest_fpu_loaded, guest_xcr0_loaded;
Zhang Xiantaod17fbbf2007-12-14 09:45:31 +0800125 wait_queue_head_t wq;
Rik van Riel34bb10b2011-02-01 09:52:41 -0500126 struct pid *pid;
Zhang Xiantaod17fbbf2007-12-14 09:45:31 +0800127 int sigset_active;
128 sigset_t sigset;
129 struct kvm_vcpu_stat stat;
130
131#ifdef CONFIG_HAS_IOMEM
132 int mmio_needed;
133 int mmio_read_completed;
134 int mmio_is_write;
135 int mmio_size;
136 unsigned char mmio_data[8];
137 gpa_t mmio_phys_addr;
138#endif
Zhang Xiantaod657a982007-12-14 09:41:22 +0800139
Gleb Natapovaf585b92010-10-14 11:22:46 +0200140#ifdef CONFIG_KVM_ASYNC_PF
141 struct {
142 u32 queued;
143 struct list_head queue;
144 struct list_head done;
145 spinlock_t lock;
146 } async_pf;
147#endif
148
Zhang Xiantaod657a982007-12-14 09:41:22 +0800149 struct kvm_vcpu_arch arch;
150};
151
Xiao Guangrong6b7e2d02011-01-12 15:40:31 +0800152static inline int kvm_vcpu_exiting_guest_mode(struct kvm_vcpu *vcpu)
153{
154 return cmpxchg(&vcpu->mode, IN_GUEST_MODE, EXITING_GUEST_MODE);
155}
156
Takuya Yoshikawa660c22c2010-04-13 22:47:24 +0900157/*
158 * Some of the bitops functions do not support too long bitmaps.
159 * This number must be determined not to exceed such limits.
160 */
161#define KVM_MEM_MAX_NR_PAGES ((1UL << 31) - 1)
162
Takuya Yoshikawad4dbf472010-12-07 12:59:07 +0900163struct kvm_lpage_info {
164 unsigned long rmap_pde;
165 int write_count;
166};
167
Avi Kivity6aa8b732006-12-10 02:21:36 -0800168struct kvm_memory_slot {
169 gfn_t base_gfn;
170 unsigned long npages;
171 unsigned long flags;
Izik Eidus290fc382007-09-27 14:11:22 +0200172 unsigned long *rmap;
Avi Kivity6aa8b732006-12-10 02:21:36 -0800173 unsigned long *dirty_bitmap;
Takuya Yoshikawa515a0122010-10-27 18:23:54 +0900174 unsigned long *dirty_bitmap_head;
Takuya Yoshikawad4dbf472010-12-07 12:59:07 +0900175 struct kvm_lpage_info *lpage_info[KVM_NR_PAGE_SIZES - 1];
Izik Eidus8a7ae052007-10-18 11:09:33 +0200176 unsigned long userspace_addr;
Izik Eidus80b14b52007-10-25 11:54:04 +0200177 int user_alloc;
Avi Kivitye36d96f2010-06-21 10:56:36 +0300178 int id;
Avi Kivity6aa8b732006-12-10 02:21:36 -0800179};
180
Takuya Yoshikawa87bf6e72010-04-12 19:35:35 +0900181static inline unsigned long kvm_dirty_bitmap_bytes(struct kvm_memory_slot *memslot)
182{
183 return ALIGN(memslot->npages, BITS_PER_LONG) / 8;
184}
185
Avi Kivity399ec802008-11-19 13:58:46 +0200186struct kvm_kernel_irq_routing_entry {
187 u32 gsi;
Michael S. Tsirkin5116d8f2009-07-26 17:10:01 +0300188 u32 type;
Gleb Natapov49256632009-02-04 17:28:14 +0200189 int (*set)(struct kvm_kernel_irq_routing_entry *e,
Gleb Natapov1a6e4a82009-08-24 11:54:19 +0300190 struct kvm *kvm, int irq_source_id, int level);
Avi Kivity399ec802008-11-19 13:58:46 +0200191 union {
192 struct {
193 unsigned irqchip;
194 unsigned pin;
195 } irqchip;
Sheng Yang79950e12009-02-10 13:57:06 +0800196 struct msi_msg msi;
Avi Kivity399ec802008-11-19 13:58:46 +0200197 };
Gleb Natapov46e624b2009-08-24 11:54:20 +0300198 struct hlist_node link;
199};
200
Gleb Natapov3e71f882009-08-24 11:54:21 +0300201#ifdef __KVM_HAVE_IOAPIC
202
Gleb Natapov46e624b2009-08-24 11:54:20 +0300203struct kvm_irq_routing_table {
Gleb Natapov3e71f882009-08-24 11:54:21 +0300204 int chip[KVM_NR_IRQCHIPS][KVM_IOAPIC_NUM_PINS];
Gleb Natapov46e624b2009-08-24 11:54:20 +0300205 struct kvm_kernel_irq_routing_entry *rt_entries;
206 u32 nr_rt_entries;
207 /*
208 * Array indexed by gsi. Each entry contains list of irq chips
209 * the gsi is connected to.
210 */
211 struct hlist_head map[0];
Avi Kivity399ec802008-11-19 13:58:46 +0200212};
213
Gleb Natapov3e71f882009-08-24 11:54:21 +0300214#else
215
216struct kvm_irq_routing_table {};
217
218#endif
219
Marcelo Tosatti46a26bf2009-12-23 14:35:16 -0200220struct kvm_memslots {
221 int nmemslots;
Gleb Natapov49c77542010-10-18 15:22:23 +0200222 u64 generation;
Marcelo Tosatti46a26bf2009-12-23 14:35:16 -0200223 struct kvm_memory_slot memslots[KVM_MEMORY_SLOTS +
224 KVM_PRIVATE_MEM_SLOTS];
225};
226
Avi Kivity6aa8b732006-12-10 02:21:36 -0800227struct kvm {
Marcelo Tosattiaaee2c92007-12-20 19:18:26 -0500228 spinlock_t mmu_lock;
Marcelo Tosatti79fac952009-12-23 14:35:26 -0200229 struct mutex slots_lock;
Avi Kivity6d4e4c42007-11-21 16:41:05 +0200230 struct mm_struct *mm; /* userspace tied to this vm */
Marcelo Tosatti46a26bf2009-12-23 14:35:16 -0200231 struct kvm_memslots *memslots;
Marcelo Tosattibc6678a2009-12-23 14:35:21 -0200232 struct srcu_struct srcu;
Gleb Natapov73880c82009-06-09 15:56:28 +0300233#ifdef CONFIG_KVM_APIC_ARCHITECTURE
234 u32 bsp_vcpu_id;
Gleb Natapovc5af89b2009-06-09 15:56:26 +0300235 struct kvm_vcpu *bsp_vcpu;
Gleb Natapov73880c82009-06-09 15:56:28 +0300236#endif
Rusty Russellfb3f0f52007-07-27 17:16:56 +1000237 struct kvm_vcpu *vcpus[KVM_MAX_VCPUS];
Gleb Natapov73880c82009-06-09 15:56:28 +0300238 atomic_t online_vcpus;
Rik van Riel217ece62011-02-01 09:53:28 -0500239 int last_boosted_vcpu;
Avi Kivity133de902007-02-12 00:54:44 -0800240 struct list_head vm_list;
Marcelo Tosatti60eead72009-06-04 15:08:23 -0300241 struct mutex lock;
Marcelo Tosattie93f8a02009-12-23 14:35:24 -0200242 struct kvm_io_bus *buses[KVM_NR_BUSES];
Gregory Haskins721eecb2009-05-20 10:30:49 -0400243#ifdef CONFIG_HAVE_KVM_EVENTFD
244 struct {
245 spinlock_t lock;
246 struct list_head items;
247 } irqfds;
Gregory Haskinsd34e6b12009-07-07 17:08:49 -0400248 struct list_head ioeventfds;
Gregory Haskins721eecb2009-05-20 10:30:49 -0400249#endif
Avi Kivityba1389b2007-11-18 16:24:12 +0200250 struct kvm_vm_stat stat;
Zhang Xiantaod69fb812007-12-14 09:54:20 +0800251 struct kvm_arch arch;
Izik Eidusd39f13b2008-03-30 16:01:25 +0300252 atomic_t users_count;
Laurent Vivier5f94c172008-05-30 16:05:54 +0200253#ifdef KVM_COALESCED_MMIO_PAGE_OFFSET
254 struct kvm_coalesced_mmio_dev *coalesced_mmio_dev;
255 struct kvm_coalesced_mmio_ring *coalesced_mmio_ring;
256#endif
Andrea Arcangelie930bff2008-07-25 16:24:52 +0200257
Marcelo Tosatti60eead72009-06-04 15:08:23 -0300258 struct mutex irq_lock;
Avi Kivity75858a82009-01-04 17:10:50 +0200259#ifdef CONFIG_HAVE_KVM_IRQCHIP
Michael S. Tsirkinbd2b53b2010-11-18 19:09:08 +0200260 /*
261 * Update side is protected by irq_lock and,
262 * if configured, irqfds.lock.
263 */
Arnd Bergmann4b6a2872010-03-04 15:59:23 +0100264 struct kvm_irq_routing_table __rcu *irq_routing;
Avi Kivity75858a82009-01-04 17:10:50 +0200265 struct hlist_head mask_notifier_list;
Gleb Natapov136bdfe2009-08-24 11:54:23 +0300266 struct hlist_head irq_ack_notifier_list;
Avi Kivity75858a82009-01-04 17:10:50 +0200267#endif
268
Andrea Arcangelie930bff2008-07-25 16:24:52 +0200269#ifdef KVM_ARCH_WANT_MMU_NOTIFIER
270 struct mmu_notifier mmu_notifier;
271 unsigned long mmu_notifier_seq;
272 long mmu_notifier_count;
273#endif
Avi Kivity5c663a12010-12-08 18:04:51 +0200274 long tlbs_dirty;
Avi Kivity6aa8b732006-12-10 02:21:36 -0800275};
276
Rusty Russellf0242472007-08-01 10:48:02 +1000277/* The guest did something we don't support. */
278#define pr_unimpl(vcpu, fmt, ...) \
279 do { \
280 if (printk_ratelimit()) \
281 printk(KERN_ERR "kvm: %i: cpu%i " fmt, \
282 current->tgid, (vcpu)->vcpu_id , ## __VA_ARGS__); \
Mike Dayd77c26f2007-10-08 09:02:08 -0400283 } while (0)
Rusty Russellf0242472007-08-01 10:48:02 +1000284
Avi Kivity6aa8b732006-12-10 02:21:36 -0800285#define kvm_printf(kvm, fmt ...) printk(KERN_DEBUG fmt)
286#define vcpu_printf(vcpu, fmt...) kvm_printf(vcpu->kvm, fmt)
287
Gleb Natapov988a2ca2009-06-09 15:56:29 +0300288static inline struct kvm_vcpu *kvm_get_vcpu(struct kvm *kvm, int i)
289{
290 smp_rmb();
291 return kvm->vcpus[i];
292}
293
294#define kvm_for_each_vcpu(idx, vcpup, kvm) \
295 for (idx = 0, vcpup = kvm_get_vcpu(kvm, idx); \
296 idx < atomic_read(&kvm->online_vcpus) && vcpup; \
297 vcpup = kvm_get_vcpu(kvm, ++idx))
298
Rusty Russellfb3f0f52007-07-27 17:16:56 +1000299int kvm_vcpu_init(struct kvm_vcpu *vcpu, struct kvm *kvm, unsigned id);
300void kvm_vcpu_uninit(struct kvm_vcpu *vcpu);
301
Carsten Otte313a3dc2007-10-11 19:16:52 +0200302void vcpu_load(struct kvm_vcpu *vcpu);
303void vcpu_put(struct kvm_vcpu *vcpu);
304
Avi Kivity0ee75be2010-04-28 15:39:01 +0300305int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align,
Rusty Russellc16f8622007-07-30 21:12:19 +1000306 struct module *module);
Zhang Xiantaocb498ea2007-11-14 20:39:31 +0800307void kvm_exit(void);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800308
Izik Eidusd39f13b2008-03-30 16:01:25 +0300309void kvm_get_kvm(struct kvm *kvm);
310void kvm_put_kvm(struct kvm *kvm);
311
Lai Jiangshan90d83dc2010-04-19 17:41:23 +0800312static inline struct kvm_memslots *kvm_memslots(struct kvm *kvm)
313{
314 return rcu_dereference_check(kvm->memslots,
315 srcu_read_lock_held(&kvm->srcu)
316 || lockdep_is_held(&kvm->slots_lock));
317}
318
Avi Kivity6aa8b732006-12-10 02:21:36 -0800319#define HPA_MSB ((sizeof(hpa_t) * 8) - 1)
320#define HPA_ERR_MASK ((hpa_t)1 << HPA_MSB)
321static inline int is_error_hpa(hpa_t hpa) { return hpa >> HPA_MSB; }
Avi Kivity6aa8b732006-12-10 02:21:36 -0800322
Izik Eiduscea7bb22007-10-17 19:17:48 +0200323extern struct page *bad_page;
Anthony Liguori35149e22008-04-02 14:46:56 -0500324extern pfn_t bad_pfn;
Avi Kivity6aa8b732006-12-10 02:21:36 -0800325
Izik Eiduscea7bb22007-10-17 19:17:48 +0200326int is_error_page(struct page *page);
Anthony Liguori35149e22008-04-02 14:46:56 -0500327int is_error_pfn(pfn_t pfn);
Huang Yingbf998152010-05-31 14:28:19 +0800328int is_hwpoison_pfn(pfn_t pfn);
Gleb Natapovedba23e2010-07-07 20:16:45 +0300329int is_fault_pfn(pfn_t pfn);
Izik Eidusf9d46eb2007-11-11 22:02:22 +0200330int kvm_is_error_hva(unsigned long addr);
Izik Eidus210c7c42007-10-24 23:52:57 +0200331int kvm_set_memory_region(struct kvm *kvm,
332 struct kvm_userspace_memory_region *mem,
333 int user_alloc);
Sheng Yangf78e0e22007-10-29 09:40:42 +0800334int __kvm_set_memory_region(struct kvm *kvm,
335 struct kvm_userspace_memory_region *mem,
336 int user_alloc);
Marcelo Tosattif7784b82009-12-23 14:35:18 -0200337int kvm_arch_prepare_memory_region(struct kvm *kvm,
338 struct kvm_memory_slot *memslot,
339 struct kvm_memory_slot old,
340 struct kvm_userspace_memory_region *mem,
341 int user_alloc);
342void kvm_arch_commit_memory_region(struct kvm *kvm,
Zhang Xiantao0de10342007-11-20 16:25:04 +0800343 struct kvm_userspace_memory_region *mem,
344 struct kvm_memory_slot old,
345 int user_alloc);
Marcelo Tosatti54dee992009-06-11 12:07:44 -0300346void kvm_disable_largepages(void);
Marcelo Tosatti34d4cb82008-07-10 20:49:31 -0300347void kvm_arch_flush_shadow(struct kvm *kvm);
Marcelo Tosattia983fb22009-12-23 14:35:23 -0200348
Xiao Guangrong48987782010-08-22 19:11:43 +0800349int gfn_to_page_many_atomic(struct kvm *kvm, gfn_t gfn, struct page **pages,
350 int nr_pages);
351
Avi Kivity954bbbc22007-03-30 14:02:32 +0300352struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn);
Marcelo Tosatti05da4552008-02-23 11:44:30 -0300353unsigned long gfn_to_hva(struct kvm *kvm, gfn_t gfn);
Izik Eidusb4231d62007-11-20 11:49:33 +0200354void kvm_release_page_clean(struct page *page);
355void kvm_release_page_dirty(struct page *page);
Anthony Liguori35149e22008-04-02 14:46:56 -0500356void kvm_set_page_dirty(struct page *page);
357void kvm_set_page_accessed(struct page *page);
358
Xiao Guangrong887c08a2010-08-22 19:10:28 +0800359pfn_t hva_to_pfn_atomic(struct kvm *kvm, unsigned long addr);
Xiao Guangrong365fb3f2010-08-28 19:24:13 +0800360pfn_t gfn_to_pfn_atomic(struct kvm *kvm, gfn_t gfn);
Marcelo Tosatti612819c2010-10-22 14:18:18 -0200361pfn_t gfn_to_pfn_async(struct kvm *kvm, gfn_t gfn, bool *async,
362 bool write_fault, bool *writable);
Anthony Liguori35149e22008-04-02 14:46:56 -0500363pfn_t gfn_to_pfn(struct kvm *kvm, gfn_t gfn);
Marcelo Tosatti612819c2010-10-22 14:18:18 -0200364pfn_t gfn_to_pfn_prot(struct kvm *kvm, gfn_t gfn, bool write_fault,
365 bool *writable);
Marcelo Tosatti506f0d62009-12-23 14:35:19 -0200366pfn_t gfn_to_pfn_memslot(struct kvm *kvm,
367 struct kvm_memory_slot *slot, gfn_t gfn);
Marcelo Tosattibc6678a2009-12-23 14:35:21 -0200368int memslot_id(struct kvm *kvm, gfn_t gfn);
Anthony Liguori35149e22008-04-02 14:46:56 -0500369void kvm_release_pfn_dirty(pfn_t);
370void kvm_release_pfn_clean(pfn_t pfn);
371void kvm_set_pfn_dirty(pfn_t pfn);
372void kvm_set_pfn_accessed(pfn_t pfn);
373void kvm_get_pfn(pfn_t pfn);
374
Izik Eidus195aefd2007-10-01 22:14:18 +0200375int kvm_read_guest_page(struct kvm *kvm, gfn_t gfn, void *data, int offset,
376 int len);
Marcelo Tosatti7ec54582007-12-20 19:18:23 -0500377int kvm_read_guest_atomic(struct kvm *kvm, gpa_t gpa, void *data,
378 unsigned long len);
Izik Eidus195aefd2007-10-01 22:14:18 +0200379int kvm_read_guest(struct kvm *kvm, gpa_t gpa, void *data, unsigned long len);
380int kvm_write_guest_page(struct kvm *kvm, gfn_t gfn, const void *data,
381 int offset, int len);
382int kvm_write_guest(struct kvm *kvm, gpa_t gpa, const void *data,
383 unsigned long len);
Gleb Natapov49c77542010-10-18 15:22:23 +0200384int kvm_write_guest_cached(struct kvm *kvm, struct gfn_to_hva_cache *ghc,
385 void *data, unsigned long len);
386int kvm_gfn_to_hva_cache_init(struct kvm *kvm, struct gfn_to_hva_cache *ghc,
387 gpa_t gpa);
Izik Eidus195aefd2007-10-01 22:14:18 +0200388int kvm_clear_guest_page(struct kvm *kvm, gfn_t gfn, int offset, int len);
389int kvm_clear_guest(struct kvm *kvm, gpa_t gpa, unsigned long len);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800390struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn);
Izik Eiduse0d62c72007-10-24 23:57:46 +0200391int kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn);
Joerg Roedel8f0b1ab2010-01-28 12:37:56 +0100392unsigned long kvm_host_page_size(struct kvm *kvm, gfn_t gfn);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800393void mark_page_dirty(struct kvm *kvm, gfn_t gfn);
Gleb Natapov49c77542010-10-18 15:22:23 +0200394void mark_page_dirty_in_slot(struct kvm *kvm, struct kvm_memory_slot *memslot,
395 gfn_t gfn);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800396
Hollis Blanchard8776e512007-10-31 17:24:24 -0500397void kvm_vcpu_block(struct kvm_vcpu *vcpu);
Zhai, Edwind255f4f2009-10-09 18:03:20 +0800398void kvm_vcpu_on_spin(struct kvm_vcpu *vcpu);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800399void kvm_resched(struct kvm_vcpu *vcpu);
Avi Kivity7702fd12007-06-14 16:27:40 +0300400void kvm_load_guest_fpu(struct kvm_vcpu *vcpu);
401void kvm_put_guest_fpu(struct kvm_vcpu *vcpu);
Xiao Guangronga4ee1ca2010-11-23 11:13:00 +0800402
Avi Kivityd9e368d2007-06-07 19:18:30 +0300403void kvm_flush_remote_tlbs(struct kvm *kvm);
Marcelo Tosatti2e53d632008-02-20 14:47:24 -0500404void kvm_reload_remote_mmus(struct kvm *kvm);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800405
Carsten Otte043405e2007-10-10 17:16:19 +0200406long kvm_arch_dev_ioctl(struct file *filp,
407 unsigned int ioctl, unsigned long arg);
Carsten Otte313a3dc2007-10-11 19:16:52 +0200408long kvm_arch_vcpu_ioctl(struct file *filp,
409 unsigned int ioctl, unsigned long arg);
Zhang Xiantao018d00d2007-11-15 23:07:47 +0800410
411int kvm_dev_ioctl_check_extension(long ext);
412
Zhang Xiantao5bb064d2007-11-18 20:29:43 +0800413int kvm_get_dirty_log(struct kvm *kvm,
414 struct kvm_dirty_log *log, int *is_dirty);
415int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm,
416 struct kvm_dirty_log *log);
417
Carsten Otte1fe779f2007-10-29 16:08:35 +0100418int kvm_vm_ioctl_set_memory_region(struct kvm *kvm,
419 struct
420 kvm_userspace_memory_region *mem,
421 int user_alloc);
422long kvm_arch_vm_ioctl(struct file *filp,
423 unsigned int ioctl, unsigned long arg);
Carsten Otte313a3dc2007-10-11 19:16:52 +0200424
Hollis Blanchardd0752062007-10-31 17:24:25 -0500425int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu);
426int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu);
427
Zhang Xiantao8b006792007-11-16 13:05:55 +0800428int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
429 struct kvm_translation *tr);
430
Hollis Blanchardb6c7a5d2007-11-01 14:16:10 -0500431int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs);
432int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs);
433int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
434 struct kvm_sregs *sregs);
435int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
436 struct kvm_sregs *sregs);
Marcelo Tosatti62d9f0d2008-04-11 13:24:45 -0300437int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu,
438 struct kvm_mp_state *mp_state);
439int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu,
440 struct kvm_mp_state *mp_state);
Jan Kiszkad0bfb942008-12-15 13:52:10 +0100441int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
442 struct kvm_guest_debug *dbg);
Hollis Blanchardb6c7a5d2007-11-01 14:16:10 -0500443int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run);
444
Zhang Xiantaof8c16bb2007-11-14 20:40:21 +0800445int kvm_arch_init(void *opaque);
446void kvm_arch_exit(void);
Carsten Otte043405e2007-10-10 17:16:19 +0200447
Zhang Xiantaoe9b11c12007-11-14 20:38:21 +0800448int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu);
449void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu);
450
451void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu);
452void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
453void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu);
454struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id);
Avi Kivity26e52152007-11-20 15:30:24 +0200455int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu);
Hollis Blanchardd40ccc62007-11-19 14:04:43 -0600456void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu);
Zhang Xiantaoe9b11c12007-11-14 20:38:21 +0800457
458int kvm_arch_vcpu_reset(struct kvm_vcpu *vcpu);
Alexander Graf10474ae2009-09-15 11:37:46 +0200459int kvm_arch_hardware_enable(void *garbage);
Zhang Xiantaoe9b11c12007-11-14 20:38:21 +0800460void kvm_arch_hardware_disable(void *garbage);
461int kvm_arch_hardware_setup(void);
462void kvm_arch_hardware_unsetup(void);
463void kvm_arch_check_processor_compat(void *rtn);
Zhang Xiantao1d737c82007-12-14 09:35:10 +0800464int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu);
Zhang Xiantaoe9b11c12007-11-14 20:38:21 +0800465
Zhang Xiantaod19a9cd2007-11-18 18:43:45 +0800466void kvm_free_physmem(struct kvm *kvm);
467
Jan Kiszkad89f5ef2010-11-09 17:02:49 +0100468#ifndef __KVM_HAVE_ARCH_VM_ALLOC
469static inline struct kvm *kvm_arch_alloc_vm(void)
470{
471 return kzalloc(sizeof(struct kvm), GFP_KERNEL);
472}
473
474static inline void kvm_arch_free_vm(struct kvm *kvm)
475{
476 kfree(kvm);
477}
478#endif
479
480int kvm_arch_init_vm(struct kvm *kvm);
Zhang Xiantaod19a9cd2007-11-18 18:43:45 +0800481void kvm_arch_destroy_vm(struct kvm *kvm);
Xiantao Zhang8a98f662008-10-06 13:47:38 +0800482void kvm_free_all_assigned_devices(struct kvm *kvm);
Sheng Yangad8ba2c2009-01-06 10:03:02 +0800483void kvm_arch_sync_events(struct kvm *kvm);
Zhang Xiantaoe9b11c12007-11-14 20:38:21 +0800484
Marcelo Tosatti3d808402008-04-11 14:53:26 -0300485int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu);
Zhang Xiantao57361992007-12-17 14:21:40 +0800486void kvm_vcpu_kick(struct kvm_vcpu *vcpu);
Zhang Xiantao682c59a2007-12-11 20:36:00 +0800487
Xiantao Zhangc77fb9d2008-09-27 10:55:40 +0800488int kvm_is_mmio_pfn(pfn_t pfn);
489
Ben-Ami Yassour62c476c2008-09-14 03:48:28 +0300490struct kvm_irq_ack_notifier {
491 struct hlist_node link;
492 unsigned gsi;
493 void (*irq_acked)(struct kvm_irq_ack_notifier *kian);
494};
495
496struct kvm_assigned_dev_kernel {
497 struct kvm_irq_ack_notifier ack_notifier;
Ben-Ami Yassour62c476c2008-09-14 03:48:28 +0300498 struct list_head list;
499 int assigned_dev_id;
Zhai, Edwinab9f4ec2010-01-29 14:38:44 +0800500 int host_segnr;
Ben-Ami Yassour62c476c2008-09-14 03:48:28 +0300501 int host_busnr;
502 int host_devfn;
Sheng Yangc1e01512009-02-25 17:22:26 +0800503 unsigned int entries_nr;
Ben-Ami Yassour62c476c2008-09-14 03:48:28 +0300504 int host_irq;
Mark McLoughlindefaf152008-12-02 12:16:33 +0000505 bool host_irq_disabled;
Sheng Yangc1e01512009-02-25 17:22:26 +0800506 struct msix_entry *host_msix_entries;
Ben-Ami Yassour62c476c2008-09-14 03:48:28 +0300507 int guest_irq;
Jan Kiszka06452112010-11-16 22:30:03 +0100508 struct msix_entry *guest_msix_entries;
Sheng Yang4f906c12008-11-24 14:32:51 +0800509 unsigned long irq_requested_type;
Sheng Yang5550af42008-10-15 20:15:06 +0800510 int irq_source_id;
Weidong Hanb6535742008-12-08 23:29:53 +0800511 int flags;
Ben-Ami Yassour62c476c2008-09-14 03:48:28 +0300512 struct pci_dev *dev;
513 struct kvm *kvm;
Jan Kiszka06452112010-11-16 22:30:03 +0100514 spinlock_t intx_lock;
Jan Kiszka1e001d42010-11-16 22:30:04 +0100515 char irq_name[32];
Ben-Ami Yassour62c476c2008-09-14 03:48:28 +0300516};
Avi Kivity75858a82009-01-04 17:10:50 +0200517
518struct kvm_irq_mask_notifier {
519 void (*func)(struct kvm_irq_mask_notifier *kimn, bool masked);
520 int irq;
521 struct hlist_node link;
522};
523
524void kvm_register_irq_mask_notifier(struct kvm *kvm, int irq,
525 struct kvm_irq_mask_notifier *kimn);
526void kvm_unregister_irq_mask_notifier(struct kvm *kvm, int irq,
527 struct kvm_irq_mask_notifier *kimn);
Gleb Natapov4a994352010-07-11 15:32:23 +0300528void kvm_fire_mask_notifiers(struct kvm *kvm, unsigned irqchip, unsigned pin,
529 bool mask);
Avi Kivity75858a82009-01-04 17:10:50 +0200530
Gleb Natapov46e624b2009-08-24 11:54:20 +0300531#ifdef __KVM_HAVE_IOAPIC
532void kvm_get_intr_delivery_bitmask(struct kvm_ioapic *ioapic,
533 union kvm_ioapic_redirect_entry *entry,
534 unsigned long *deliver_bitmask);
535#endif
536int kvm_set_irq(struct kvm *kvm, int irq_source_id, u32 irq, int level);
Michael S. Tsirkinbd2b53b2010-11-18 19:09:08 +0200537int kvm_set_msi(struct kvm_kernel_irq_routing_entry *irq_entry, struct kvm *kvm,
538 int irq_source_id, int level);
Marcelo Tosatti44882ee2009-01-27 15:12:38 -0200539void kvm_notify_acked_irq(struct kvm *kvm, unsigned irqchip, unsigned pin);
Xiantao Zhang3de42dc2008-10-06 13:48:45 +0800540void kvm_register_irq_ack_notifier(struct kvm *kvm,
541 struct kvm_irq_ack_notifier *kian);
Marcelo Tosattifa40a822009-06-04 15:08:24 -0300542void kvm_unregister_irq_ack_notifier(struct kvm *kvm,
543 struct kvm_irq_ack_notifier *kian);
Sheng Yang5550af42008-10-15 20:15:06 +0800544int kvm_request_irq_source_id(struct kvm *kvm);
545void kvm_free_irq_source_id(struct kvm *kvm, int irq_source_id);
Ben-Ami Yassour62c476c2008-09-14 03:48:28 +0300546
Sheng Yang522c68c2009-04-27 20:35:43 +0800547/* For vcpu->arch.iommu_flags */
548#define KVM_IOMMU_CACHE_COHERENCY 0x1
549
Joerg Roedel19de40a2008-12-03 14:43:34 +0100550#ifdef CONFIG_IOMMU_API
Marcelo Tosatti3ad26d82009-12-23 14:35:20 -0200551int kvm_iommu_map_pages(struct kvm *kvm, struct kvm_memory_slot *slot);
Weidong Han260782b2008-12-02 21:03:39 +0800552int kvm_iommu_map_guest(struct kvm *kvm);
Ben-Ami Yassour62c476c2008-09-14 03:48:28 +0300553int kvm_iommu_unmap_guest(struct kvm *kvm);
Weidong Han260782b2008-12-02 21:03:39 +0800554int kvm_assign_device(struct kvm *kvm,
555 struct kvm_assigned_dev_kernel *assigned_dev);
Weidong Han0a920352008-12-02 21:24:23 +0800556int kvm_deassign_device(struct kvm *kvm,
557 struct kvm_assigned_dev_kernel *assigned_dev);
Joerg Roedel19de40a2008-12-03 14:43:34 +0100558#else /* CONFIG_IOMMU_API */
Ben-Ami Yassour62c476c2008-09-14 03:48:28 +0300559static inline int kvm_iommu_map_pages(struct kvm *kvm,
Jan Kiszkad7a79b62010-10-14 13:59:04 +0200560 struct kvm_memory_slot *slot)
Ben-Ami Yassour62c476c2008-09-14 03:48:28 +0300561{
562 return 0;
563}
564
Weidong Han260782b2008-12-02 21:03:39 +0800565static inline int kvm_iommu_map_guest(struct kvm *kvm)
Ben-Ami Yassour62c476c2008-09-14 03:48:28 +0300566{
567 return -ENODEV;
568}
569
570static inline int kvm_iommu_unmap_guest(struct kvm *kvm)
571{
572 return 0;
573}
Weidong Han260782b2008-12-02 21:03:39 +0800574
575static inline int kvm_assign_device(struct kvm *kvm,
576 struct kvm_assigned_dev_kernel *assigned_dev)
577{
578 return 0;
579}
Weidong Han0a920352008-12-02 21:24:23 +0800580
581static inline int kvm_deassign_device(struct kvm *kvm,
582 struct kvm_assigned_dev_kernel *assigned_dev)
583{
584 return 0;
585}
Joerg Roedel19de40a2008-12-03 14:43:34 +0100586#endif /* CONFIG_IOMMU_API */
Ben-Ami Yassour62c476c2008-09-14 03:48:28 +0300587
Laurent Vivierd172fcd2007-10-15 17:00:19 +0200588static inline void kvm_guest_enter(void)
589{
Christian Borntraegere56a7a22007-10-18 14:39:10 +0200590 account_system_vtime(current);
Laurent Vivierd172fcd2007-10-15 17:00:19 +0200591 current->flags |= PF_VCPU;
592}
593
594static inline void kvm_guest_exit(void)
595{
Christian Borntraegere56a7a22007-10-18 14:39:10 +0200596 account_system_vtime(current);
Laurent Vivierd172fcd2007-10-15 17:00:19 +0200597 current->flags &= ~PF_VCPU;
598}
599
Xiao Guangrong887c08a2010-08-22 19:10:28 +0800600static inline unsigned long gfn_to_hva_memslot(struct kvm_memory_slot *slot,
601 gfn_t gfn)
602{
603 return slot->userspace_addr + (gfn - slot->base_gfn) * PAGE_SIZE;
604}
605
Avi Kivity1755fbc2007-11-21 14:44:45 +0200606static inline gpa_t gfn_to_gpa(gfn_t gfn)
607{
608 return (gpa_t)gfn << PAGE_SHIFT;
609}
Avi Kivity6aa8b732006-12-10 02:21:36 -0800610
Joerg Roedelc30a3582010-09-10 17:30:48 +0200611static inline gfn_t gpa_to_gfn(gpa_t gpa)
612{
613 return (gfn_t)(gpa >> PAGE_SHIFT);
614}
615
Ben-Ami Yassour62c476c2008-09-14 03:48:28 +0300616static inline hpa_t pfn_to_hpa(pfn_t pfn)
617{
618 return (hpa_t)pfn << PAGE_SHIFT;
619}
620
Marcelo Tosatti2f599712008-05-27 12:10:20 -0300621static inline void kvm_migrate_timers(struct kvm_vcpu *vcpu)
Avi Kivity2f52d582008-01-16 12:49:30 +0200622{
623 set_bit(KVM_REQ_MIGRATE_TIMER, &vcpu->requests);
624}
625
Avi Kivityba1389b2007-11-18 16:24:12 +0200626enum kvm_stat_kind {
627 KVM_STAT_VM,
628 KVM_STAT_VCPU,
629};
630
Hollis Blanchard417bc302007-10-31 17:24:23 -0500631struct kvm_stats_debugfs_item {
632 const char *name;
633 int offset;
Avi Kivityba1389b2007-11-18 16:24:12 +0200634 enum kvm_stat_kind kind;
Hollis Blanchard417bc302007-10-31 17:24:23 -0500635 struct dentry *dentry;
636};
637extern struct kvm_stats_debugfs_item debugfs_entries[];
Hollis Blanchard76f7c872008-04-15 16:05:42 -0500638extern struct dentry *kvm_debugfs_dir;
Feng(Eric) Liud4c9ff22008-04-10 08:47:53 -0400639
Andrea Arcangelie930bff2008-07-25 16:24:52 +0200640#ifdef KVM_ARCH_WANT_MMU_NOTIFIER
641static inline int mmu_notifier_retry(struct kvm_vcpu *vcpu, unsigned long mmu_seq)
642{
643 if (unlikely(vcpu->kvm->mmu_notifier_count))
644 return 1;
645 /*
646 * Both reads happen under the mmu_lock and both values are
647 * modified under mmu_lock, so there's no need of smb_rmb()
648 * here in between, otherwise mmu_notifier_count should be
649 * read before mmu_notifier_seq, see
650 * mmu_notifier_invalidate_range_end write side.
651 */
652 if (vcpu->kvm->mmu_notifier_seq != mmu_seq)
653 return 1;
654 return 0;
655}
656#endif
657
Avi Kivity399ec802008-11-19 13:58:46 +0200658#ifdef CONFIG_HAVE_KVM_IRQCHIP
659
660#define KVM_MAX_IRQ_ROUTES 1024
661
662int kvm_setup_default_irq_routing(struct kvm *kvm);
663int kvm_set_irq_routing(struct kvm *kvm,
664 const struct kvm_irq_routing_entry *entries,
665 unsigned nr,
666 unsigned flags);
667void kvm_free_irq_routing(struct kvm *kvm);
668
669#else
670
671static inline void kvm_free_irq_routing(struct kvm *kvm) {}
672
673#endif
674
Gregory Haskins721eecb2009-05-20 10:30:49 -0400675#ifdef CONFIG_HAVE_KVM_EVENTFD
676
Gregory Haskinsd34e6b12009-07-07 17:08:49 -0400677void kvm_eventfd_init(struct kvm *kvm);
Gregory Haskins721eecb2009-05-20 10:30:49 -0400678int kvm_irqfd(struct kvm *kvm, int fd, int gsi, int flags);
679void kvm_irqfd_release(struct kvm *kvm);
Michael S. Tsirkinbd2b53b2010-11-18 19:09:08 +0200680void kvm_irq_routing_update(struct kvm *, struct kvm_irq_routing_table *);
Gregory Haskinsd34e6b12009-07-07 17:08:49 -0400681int kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args);
Gregory Haskins721eecb2009-05-20 10:30:49 -0400682
683#else
684
Gregory Haskinsd34e6b12009-07-07 17:08:49 -0400685static inline void kvm_eventfd_init(struct kvm *kvm) {}
Michael S. Tsirkinbd2b53b2010-11-18 19:09:08 +0200686
Gregory Haskins721eecb2009-05-20 10:30:49 -0400687static inline int kvm_irqfd(struct kvm *kvm, int fd, int gsi, int flags)
688{
689 return -EINVAL;
690}
691
692static inline void kvm_irqfd_release(struct kvm *kvm) {}
Michael S. Tsirkinbd2b53b2010-11-18 19:09:08 +0200693
Alexander Graf27923eb2010-11-25 10:25:44 +0100694#ifdef CONFIG_HAVE_KVM_IRQCHIP
Michael S. Tsirkinbd2b53b2010-11-18 19:09:08 +0200695static inline void kvm_irq_routing_update(struct kvm *kvm,
696 struct kvm_irq_routing_table *irq_rt)
697{
698 rcu_assign_pointer(kvm->irq_routing, irq_rt);
699}
Alexander Graf27923eb2010-11-25 10:25:44 +0100700#endif
Michael S. Tsirkinbd2b53b2010-11-18 19:09:08 +0200701
Gregory Haskinsd34e6b12009-07-07 17:08:49 -0400702static inline int kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args)
703{
704 return -ENOSYS;
705}
Gregory Haskins721eecb2009-05-20 10:30:49 -0400706
707#endif /* CONFIG_HAVE_KVM_EVENTFD */
708
Gleb Natapov73880c82009-06-09 15:56:28 +0300709#ifdef CONFIG_KVM_APIC_ARCHITECTURE
Gleb Natapovc5af89b2009-06-09 15:56:26 +0300710static inline bool kvm_vcpu_is_bsp(struct kvm_vcpu *vcpu)
711{
Marcelo Tosattid3efc8e2009-06-17 10:07:59 -0300712 return vcpu->kvm->bsp_vcpu_id == vcpu->vcpu_id;
Gleb Natapovc5af89b2009-06-09 15:56:26 +0300713}
Avi Kivity6aa8b732006-12-10 02:21:36 -0800714#endif
Avi Kivitybfd99ff2009-08-26 14:57:50 +0300715
716#ifdef __KVM_HAVE_DEVICE_ASSIGNMENT
717
718long kvm_vm_ioctl_assigned_device(struct kvm *kvm, unsigned ioctl,
719 unsigned long arg);
720
721#else
722
723static inline long kvm_vm_ioctl_assigned_device(struct kvm *kvm, unsigned ioctl,
724 unsigned long arg)
725{
726 return -ENOTTY;
727}
728
Gleb Natapov73880c82009-06-09 15:56:28 +0300729#endif
Avi Kivitybfd99ff2009-08-26 14:57:50 +0300730
Avi Kivitya8eeb042010-05-10 12:34:53 +0300731static inline void kvm_make_request(int req, struct kvm_vcpu *vcpu)
732{
733 set_bit(req, &vcpu->requests);
734}
735
Avi Kivitya8eeb042010-05-10 12:34:53 +0300736static inline bool kvm_check_request(int req, struct kvm_vcpu *vcpu)
737{
Avi Kivity07198372010-05-10 13:08:26 +0300738 if (test_bit(req, &vcpu->requests)) {
739 clear_bit(req, &vcpu->requests);
740 return true;
741 } else {
742 return false;
743 }
Avi Kivitya8eeb042010-05-10 12:34:53 +0300744}
745
Avi Kivitybfd99ff2009-08-26 14:57:50 +0300746#endif
747