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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>
Feng(Eric) Liud4c9ff22008-04-10 08:47:53 -040018#include <linux/marker.h>
Sheng Yang0937c482008-11-24 14:32:53 +080019#include <linux/msi.h>
Alexey Dobriyane8edc6e2007-05-21 01:22:52 +040020#include <asm/signal.h>
Avi Kivity6aa8b732006-12-10 02:21:36 -080021
Avi Kivity6aa8b732006-12-10 02:21:36 -080022#include <linux/kvm.h>
Ingo Molnar102d8322007-02-19 14:37:47 +020023#include <linux/kvm_para.h>
Avi Kivity6aa8b732006-12-10 02:21:36 -080024
Avi Kivityedf88412007-12-16 11:02:48 +020025#include <linux/kvm_types.h>
Hollis Blanchardd77a39d2007-12-03 15:30:23 -060026
Avi Kivityedf88412007-12-16 11:02:48 +020027#include <asm/kvm_host.h>
Zhang Xiantaod657a982007-12-14 09:41:22 +080028
Avi Kivity6aa8b732006-12-10 02:21:36 -080029/*
Avi Kivityd9e368d2007-06-07 19:18:30 +030030 * vcpu->requests bit members
31 */
Avi Kivity3176bc32007-10-16 17:22:08 +020032#define KVM_REQ_TLB_FLUSH 0
Avi Kivity2f52d582008-01-16 12:49:30 +020033#define KVM_REQ_MIGRATE_TIMER 1
Avi Kivityb209749f2007-10-22 16:50:39 +020034#define KVM_REQ_REPORT_TPR_ACCESS 2
Marcelo Tosatti2e53d632008-02-20 14:47:24 -050035#define KVM_REQ_MMU_RELOAD 3
Joerg Roedel71c4dfa2008-02-26 16:49:16 +010036#define KVM_REQ_TRIPLE_FAULT 4
Marcelo Tosatti06e05642008-06-06 16:37:36 -030037#define KVM_REQ_PENDING_TIMER 5
Marcelo Tosattid7690172008-09-08 15:23:48 -030038#define KVM_REQ_UNHALT 6
Marcelo Tosatti4731d4c2008-09-23 13:18:39 -030039#define KVM_REQ_MMU_SYNC 7
Gerd Hoffmannc8076602009-02-04 17:52:04 +010040#define KVM_REQ_KVMCLOCK_UPDATE 8
Marcelo Tosatti32f88402009-05-07 17:55:12 -030041#define KVM_REQ_KICK 9
Avi Kivity6aa8b732006-12-10 02:21:36 -080042
Sheng Yang5550af42008-10-15 20:15:06 +080043#define KVM_USERSPACE_IRQ_SOURCE_ID 0
44
Michael S. Tsirkin6c474692009-06-29 22:24:26 +030045struct kvm;
Avi Kivity6aa8b732006-12-10 02:21:36 -080046struct kvm_vcpu;
Rusty Russellc16f8622007-07-30 21:12:19 +100047extern struct kmem_cache *kvm_vcpu_cache;
Avi Kivity6aa8b732006-12-10 02:21:36 -080048
Gregory Haskins2eeb2e92007-05-31 14:08:53 -040049/*
50 * It would be nice to use something smarter than a linear search, TBD...
51 * Thankfully we dont expect many devices to register (famous last words :),
52 * so until then it will suffice. At least its abstracted so we can change
53 * in one place.
54 */
55struct kvm_io_bus {
56 int dev_count;
57#define NR_IOBUS_DEVS 6
58 struct kvm_io_device *devs[NR_IOBUS_DEVS];
59};
60
61void kvm_io_bus_init(struct kvm_io_bus *bus);
62void kvm_io_bus_destroy(struct kvm_io_bus *bus);
Michael S. Tsirkinbda90202009-06-29 22:24:32 +030063int kvm_io_bus_write(struct kvm_io_bus *bus, gpa_t addr, int len,
64 const void *val);
65int kvm_io_bus_read(struct kvm_io_bus *bus, gpa_t addr, int len,
66 void *val);
Michael S. Tsirkin6c474692009-06-29 22:24:26 +030067void __kvm_io_bus_register_dev(struct kvm_io_bus *bus,
68 struct kvm_io_device *dev);
69void kvm_io_bus_register_dev(struct kvm *kvm, struct kvm_io_bus *bus,
Gregory Haskins2eeb2e92007-05-31 14:08:53 -040070 struct kvm_io_device *dev);
71
Zhang Xiantaod657a982007-12-14 09:41:22 +080072struct kvm_vcpu {
Zhang Xiantaod17fbbf2007-12-14 09:45:31 +080073 struct kvm *kvm;
Hollis Blanchard31bb1172008-01-28 17:42:34 -060074#ifdef CONFIG_PREEMPT_NOTIFIERS
Zhang Xiantaod17fbbf2007-12-14 09:45:31 +080075 struct preempt_notifier preempt_notifier;
Hollis Blanchard31bb1172008-01-28 17:42:34 -060076#endif
Zhang Xiantaod17fbbf2007-12-14 09:45:31 +080077 int vcpu_id;
78 struct mutex mutex;
79 int cpu;
80 struct kvm_run *run;
Zhang Xiantaod17fbbf2007-12-14 09:45:31 +080081 unsigned long requests;
Jan Kiszkad0bfb942008-12-15 13:52:10 +010082 unsigned long guest_debug;
Zhang Xiantaod17fbbf2007-12-14 09:45:31 +080083 int fpu_active;
84 int guest_fpu_loaded;
85 wait_queue_head_t wq;
86 int sigset_active;
87 sigset_t sigset;
88 struct kvm_vcpu_stat stat;
89
90#ifdef CONFIG_HAS_IOMEM
91 int mmio_needed;
92 int mmio_read_completed;
93 int mmio_is_write;
94 int mmio_size;
95 unsigned char mmio_data[8];
96 gpa_t mmio_phys_addr;
97#endif
Zhang Xiantaod657a982007-12-14 09:41:22 +080098
99 struct kvm_vcpu_arch arch;
100};
101
Avi Kivity6aa8b732006-12-10 02:21:36 -0800102struct kvm_memory_slot {
103 gfn_t base_gfn;
104 unsigned long npages;
105 unsigned long flags;
Izik Eidus290fc382007-09-27 14:11:22 +0200106 unsigned long *rmap;
Avi Kivity6aa8b732006-12-10 02:21:36 -0800107 unsigned long *dirty_bitmap;
Marcelo Tosatti05da4552008-02-23 11:44:30 -0300108 struct {
109 unsigned long rmap_pde;
110 int write_count;
Joerg Roedelec04b262009-06-19 15:16:23 +0200111 } *lpage_info[KVM_NR_PAGE_SIZES - 1];
Izik Eidus8a7ae052007-10-18 11:09:33 +0200112 unsigned long userspace_addr;
Izik Eidus80b14b52007-10-25 11:54:04 +0200113 int user_alloc;
Avi Kivity6aa8b732006-12-10 02:21:36 -0800114};
115
Avi Kivity399ec802008-11-19 13:58:46 +0200116struct kvm_kernel_irq_routing_entry {
117 u32 gsi;
Michael S. Tsirkin5116d8f2009-07-26 17:10:01 +0300118 u32 type;
Gleb Natapov49256632009-02-04 17:28:14 +0200119 int (*set)(struct kvm_kernel_irq_routing_entry *e,
Avi Kivity399ec802008-11-19 13:58:46 +0200120 struct kvm *kvm, int level);
121 union {
122 struct {
123 unsigned irqchip;
124 unsigned pin;
125 } irqchip;
Sheng Yang79950e12009-02-10 13:57:06 +0800126 struct msi_msg msi;
Avi Kivity399ec802008-11-19 13:58:46 +0200127 };
128 struct list_head link;
129};
130
Avi Kivity6aa8b732006-12-10 02:21:36 -0800131struct kvm {
Marcelo Tosattiaaee2c92007-12-20 19:18:26 -0500132 spinlock_t mmu_lock;
Marcelo Tosatti84261922009-06-17 10:53:47 -0300133 spinlock_t requests_lock;
Izik Eidus72dc67a2008-02-10 18:04:15 +0200134 struct rw_semaphore slots_lock;
Avi Kivity6d4e4c42007-11-21 16:41:05 +0200135 struct mm_struct *mm; /* userspace tied to this vm */
Avi Kivity6aa8b732006-12-10 02:21:36 -0800136 int nmemslots;
Izik Eiduse0d62c72007-10-24 23:57:46 +0200137 struct kvm_memory_slot memslots[KVM_MEMORY_SLOTS +
138 KVM_PRIVATE_MEM_SLOTS];
Gleb Natapov73880c82009-06-09 15:56:28 +0300139#ifdef CONFIG_KVM_APIC_ARCHITECTURE
140 u32 bsp_vcpu_id;
Gleb Natapovc5af89b2009-06-09 15:56:26 +0300141 struct kvm_vcpu *bsp_vcpu;
Gleb Natapov73880c82009-06-09 15:56:28 +0300142#endif
Rusty Russellfb3f0f52007-07-27 17:16:56 +1000143 struct kvm_vcpu *vcpus[KVM_MAX_VCPUS];
Gleb Natapov73880c82009-06-09 15:56:28 +0300144 atomic_t online_vcpus;
Avi Kivity133de902007-02-12 00:54:44 -0800145 struct list_head vm_list;
Marcelo Tosatti60eead72009-06-04 15:08:23 -0300146 struct mutex lock;
Gregory Haskins2eeb2e92007-05-31 14:08:53 -0400147 struct kvm_io_bus mmio_bus;
Eddie Dong74906342007-06-19 18:05:03 +0300148 struct kvm_io_bus pio_bus;
Gregory Haskins721eecb2009-05-20 10:30:49 -0400149#ifdef CONFIG_HAVE_KVM_EVENTFD
150 struct {
151 spinlock_t lock;
152 struct list_head items;
153 } irqfds;
154#endif
Avi Kivityba1389b2007-11-18 16:24:12 +0200155 struct kvm_vm_stat stat;
Zhang Xiantaod69fb812007-12-14 09:54:20 +0800156 struct kvm_arch arch;
Izik Eidusd39f13b2008-03-30 16:01:25 +0300157 atomic_t users_count;
Laurent Vivier5f94c172008-05-30 16:05:54 +0200158#ifdef KVM_COALESCED_MMIO_PAGE_OFFSET
159 struct kvm_coalesced_mmio_dev *coalesced_mmio_dev;
160 struct kvm_coalesced_mmio_ring *coalesced_mmio_ring;
161#endif
Andrea Arcangelie930bff2008-07-25 16:24:52 +0200162
Marcelo Tosatti60eead72009-06-04 15:08:23 -0300163 struct mutex irq_lock;
Avi Kivity75858a82009-01-04 17:10:50 +0200164#ifdef CONFIG_HAVE_KVM_IRQCHIP
Avi Kivity399ec802008-11-19 13:58:46 +0200165 struct list_head irq_routing; /* of kvm_kernel_irq_routing_entry */
Avi Kivity75858a82009-01-04 17:10:50 +0200166 struct hlist_head mask_notifier_list;
167#endif
168
Andrea Arcangelie930bff2008-07-25 16:24:52 +0200169#ifdef KVM_ARCH_WANT_MMU_NOTIFIER
170 struct mmu_notifier mmu_notifier;
171 unsigned long mmu_notifier_seq;
172 long mmu_notifier_count;
173#endif
Avi Kivity6aa8b732006-12-10 02:21:36 -0800174};
175
Rusty Russellf0242472007-08-01 10:48:02 +1000176/* The guest did something we don't support. */
177#define pr_unimpl(vcpu, fmt, ...) \
178 do { \
179 if (printk_ratelimit()) \
180 printk(KERN_ERR "kvm: %i: cpu%i " fmt, \
181 current->tgid, (vcpu)->vcpu_id , ## __VA_ARGS__); \
Mike Dayd77c26f2007-10-08 09:02:08 -0400182 } while (0)
Rusty Russellf0242472007-08-01 10:48:02 +1000183
Avi Kivity6aa8b732006-12-10 02:21:36 -0800184#define kvm_printf(kvm, fmt ...) printk(KERN_DEBUG fmt)
185#define vcpu_printf(vcpu, fmt...) kvm_printf(vcpu->kvm, fmt)
186
Gleb Natapov988a2ca2009-06-09 15:56:29 +0300187static inline struct kvm_vcpu *kvm_get_vcpu(struct kvm *kvm, int i)
188{
189 smp_rmb();
190 return kvm->vcpus[i];
191}
192
193#define kvm_for_each_vcpu(idx, vcpup, kvm) \
194 for (idx = 0, vcpup = kvm_get_vcpu(kvm, idx); \
195 idx < atomic_read(&kvm->online_vcpus) && vcpup; \
196 vcpup = kvm_get_vcpu(kvm, ++idx))
197
Rusty Russellfb3f0f52007-07-27 17:16:56 +1000198int kvm_vcpu_init(struct kvm_vcpu *vcpu, struct kvm *kvm, unsigned id);
199void kvm_vcpu_uninit(struct kvm_vcpu *vcpu);
200
Carsten Otte313a3dc2007-10-11 19:16:52 +0200201void vcpu_load(struct kvm_vcpu *vcpu);
202void vcpu_put(struct kvm_vcpu *vcpu);
203
Zhang Xiantaof8c16bb2007-11-14 20:40:21 +0800204int kvm_init(void *opaque, unsigned int vcpu_size,
Rusty Russellc16f8622007-07-30 21:12:19 +1000205 struct module *module);
Zhang Xiantaocb498ea2007-11-14 20:39:31 +0800206void kvm_exit(void);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800207
Izik Eidusd39f13b2008-03-30 16:01:25 +0300208void kvm_get_kvm(struct kvm *kvm);
209void kvm_put_kvm(struct kvm *kvm);
210
Avi Kivity6aa8b732006-12-10 02:21:36 -0800211#define HPA_MSB ((sizeof(hpa_t) * 8) - 1)
212#define HPA_ERR_MASK ((hpa_t)1 << HPA_MSB)
213static inline int is_error_hpa(hpa_t hpa) { return hpa >> HPA_MSB; }
Avi Kivity039576c2007-03-20 12:46:50 +0200214struct page *gva_to_page(struct kvm_vcpu *vcpu, gva_t gva);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800215
Izik Eiduscea7bb22007-10-17 19:17:48 +0200216extern struct page *bad_page;
Anthony Liguori35149e22008-04-02 14:46:56 -0500217extern pfn_t bad_pfn;
Avi Kivity6aa8b732006-12-10 02:21:36 -0800218
Izik Eiduscea7bb22007-10-17 19:17:48 +0200219int is_error_page(struct page *page);
Anthony Liguori35149e22008-04-02 14:46:56 -0500220int is_error_pfn(pfn_t pfn);
Izik Eidusf9d46eb2007-11-11 22:02:22 +0200221int kvm_is_error_hva(unsigned long addr);
Izik Eidus210c7c42007-10-24 23:52:57 +0200222int kvm_set_memory_region(struct kvm *kvm,
223 struct kvm_userspace_memory_region *mem,
224 int user_alloc);
Sheng Yangf78e0e22007-10-29 09:40:42 +0800225int __kvm_set_memory_region(struct kvm *kvm,
226 struct kvm_userspace_memory_region *mem,
227 int user_alloc);
Zhang Xiantao0de10342007-11-20 16:25:04 +0800228int kvm_arch_set_memory_region(struct kvm *kvm,
229 struct kvm_userspace_memory_region *mem,
230 struct kvm_memory_slot old,
231 int user_alloc);
Marcelo Tosatti54dee992009-06-11 12:07:44 -0300232void kvm_disable_largepages(void);
Marcelo Tosatti34d4cb82008-07-10 20:49:31 -0300233void kvm_arch_flush_shadow(struct kvm *kvm);
Izik Eidus290fc382007-09-27 14:11:22 +0200234gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn);
Avi Kivity954bbbc22007-03-30 14:02:32 +0300235struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn);
Marcelo Tosatti05da4552008-02-23 11:44:30 -0300236unsigned long gfn_to_hva(struct kvm *kvm, gfn_t gfn);
Izik Eidusb4231d62007-11-20 11:49:33 +0200237void kvm_release_page_clean(struct page *page);
238void kvm_release_page_dirty(struct page *page);
Anthony Liguori35149e22008-04-02 14:46:56 -0500239void kvm_set_page_dirty(struct page *page);
240void kvm_set_page_accessed(struct page *page);
241
242pfn_t gfn_to_pfn(struct kvm *kvm, gfn_t gfn);
243void kvm_release_pfn_dirty(pfn_t);
244void kvm_release_pfn_clean(pfn_t pfn);
245void kvm_set_pfn_dirty(pfn_t pfn);
246void kvm_set_pfn_accessed(pfn_t pfn);
247void kvm_get_pfn(pfn_t pfn);
248
Izik Eidus195aefd2007-10-01 22:14:18 +0200249int kvm_read_guest_page(struct kvm *kvm, gfn_t gfn, void *data, int offset,
250 int len);
Marcelo Tosatti7ec54582007-12-20 19:18:23 -0500251int kvm_read_guest_atomic(struct kvm *kvm, gpa_t gpa, void *data,
252 unsigned long len);
Izik Eidus195aefd2007-10-01 22:14:18 +0200253int kvm_read_guest(struct kvm *kvm, gpa_t gpa, void *data, unsigned long len);
254int kvm_write_guest_page(struct kvm *kvm, gfn_t gfn, const void *data,
255 int offset, int len);
256int kvm_write_guest(struct kvm *kvm, gpa_t gpa, const void *data,
257 unsigned long len);
258int kvm_clear_guest_page(struct kvm *kvm, gfn_t gfn, int offset, int len);
259int kvm_clear_guest(struct kvm *kvm, gpa_t gpa, unsigned long len);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800260struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn);
Izik Eiduse0d62c72007-10-24 23:57:46 +0200261int kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800262void mark_page_dirty(struct kvm *kvm, gfn_t gfn);
263
Hollis Blanchard8776e512007-10-31 17:24:24 -0500264void kvm_vcpu_block(struct kvm_vcpu *vcpu);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800265void kvm_resched(struct kvm_vcpu *vcpu);
Avi Kivity7702fd12007-06-14 16:27:40 +0300266void kvm_load_guest_fpu(struct kvm_vcpu *vcpu);
267void kvm_put_guest_fpu(struct kvm_vcpu *vcpu);
Avi Kivityd9e368d2007-06-07 19:18:30 +0300268void kvm_flush_remote_tlbs(struct kvm *kvm);
Marcelo Tosatti2e53d632008-02-20 14:47:24 -0500269void kvm_reload_remote_mmus(struct kvm *kvm);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800270
Carsten Otte043405e2007-10-10 17:16:19 +0200271long kvm_arch_dev_ioctl(struct file *filp,
272 unsigned int ioctl, unsigned long arg);
Carsten Otte313a3dc2007-10-11 19:16:52 +0200273long kvm_arch_vcpu_ioctl(struct file *filp,
274 unsigned int ioctl, unsigned long arg);
Zhang Xiantao018d00d2007-11-15 23:07:47 +0800275
276int kvm_dev_ioctl_check_extension(long ext);
277
Zhang Xiantao5bb064d2007-11-18 20:29:43 +0800278int kvm_get_dirty_log(struct kvm *kvm,
279 struct kvm_dirty_log *log, int *is_dirty);
280int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm,
281 struct kvm_dirty_log *log);
282
Carsten Otte1fe779f2007-10-29 16:08:35 +0100283int kvm_vm_ioctl_set_memory_region(struct kvm *kvm,
284 struct
285 kvm_userspace_memory_region *mem,
286 int user_alloc);
287long kvm_arch_vm_ioctl(struct file *filp,
288 unsigned int ioctl, unsigned long arg);
Carsten Otte313a3dc2007-10-11 19:16:52 +0200289
Hollis Blanchardd0752062007-10-31 17:24:25 -0500290int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu);
291int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu);
292
Zhang Xiantao8b006792007-11-16 13:05:55 +0800293int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
294 struct kvm_translation *tr);
295
Hollis Blanchardb6c7a5d2007-11-01 14:16:10 -0500296int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs);
297int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs);
298int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
299 struct kvm_sregs *sregs);
300int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
301 struct kvm_sregs *sregs);
Marcelo Tosatti62d9f0d2008-04-11 13:24:45 -0300302int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu,
303 struct kvm_mp_state *mp_state);
304int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu,
305 struct kvm_mp_state *mp_state);
Jan Kiszkad0bfb942008-12-15 13:52:10 +0100306int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
307 struct kvm_guest_debug *dbg);
Hollis Blanchardb6c7a5d2007-11-01 14:16:10 -0500308int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run);
309
Zhang Xiantaof8c16bb2007-11-14 20:40:21 +0800310int kvm_arch_init(void *opaque);
311void kvm_arch_exit(void);
Carsten Otte043405e2007-10-10 17:16:19 +0200312
Zhang Xiantaoe9b11c12007-11-14 20:38:21 +0800313int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu);
314void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu);
315
316void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu);
317void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
318void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu);
319struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id);
Avi Kivity26e52152007-11-20 15:30:24 +0200320int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu);
Hollis Blanchardd40ccc62007-11-19 14:04:43 -0600321void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu);
Zhang Xiantaoe9b11c12007-11-14 20:38:21 +0800322
323int kvm_arch_vcpu_reset(struct kvm_vcpu *vcpu);
324void kvm_arch_hardware_enable(void *garbage);
325void kvm_arch_hardware_disable(void *garbage);
326int kvm_arch_hardware_setup(void);
327void kvm_arch_hardware_unsetup(void);
328void kvm_arch_check_processor_compat(void *rtn);
Zhang Xiantao1d737c82007-12-14 09:35:10 +0800329int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu);
Gleb Natapov78646122009-03-23 12:12:11 +0200330int kvm_arch_interrupt_allowed(struct kvm_vcpu *vcpu);
Zhang Xiantaoe9b11c12007-11-14 20:38:21 +0800331
Zhang Xiantaod19a9cd2007-11-18 18:43:45 +0800332void kvm_free_physmem(struct kvm *kvm);
333
334struct kvm *kvm_arch_create_vm(void);
335void kvm_arch_destroy_vm(struct kvm *kvm);
Xiantao Zhang8a98f662008-10-06 13:47:38 +0800336void kvm_free_all_assigned_devices(struct kvm *kvm);
Sheng Yangad8ba2c2009-01-06 10:03:02 +0800337void kvm_arch_sync_events(struct kvm *kvm);
Zhang Xiantaoe9b11c12007-11-14 20:38:21 +0800338
Zhang Xiantao682c59a2007-12-11 20:36:00 +0800339int kvm_cpu_get_interrupt(struct kvm_vcpu *v);
340int kvm_cpu_has_interrupt(struct kvm_vcpu *v);
Marcelo Tosatti3d808402008-04-11 14:53:26 -0300341int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu);
Zhang Xiantao57361992007-12-17 14:21:40 +0800342void kvm_vcpu_kick(struct kvm_vcpu *vcpu);
Zhang Xiantao682c59a2007-12-11 20:36:00 +0800343
Xiantao Zhangc77fb9d2008-09-27 10:55:40 +0800344int kvm_is_mmio_pfn(pfn_t pfn);
345
Ben-Ami Yassour62c476c2008-09-14 03:48:28 +0300346struct kvm_irq_ack_notifier {
347 struct hlist_node link;
348 unsigned gsi;
349 void (*irq_acked)(struct kvm_irq_ack_notifier *kian);
350};
351
Sheng Yang2350bd12009-02-25 17:22:27 +0800352#define KVM_ASSIGNED_MSIX_PENDING 0x1
Sheng Yangc1e01512009-02-25 17:22:26 +0800353struct kvm_guest_msix_entry {
354 u32 vector;
355 u16 entry;
356 u16 flags;
357};
358
Ben-Ami Yassour62c476c2008-09-14 03:48:28 +0300359struct kvm_assigned_dev_kernel {
360 struct kvm_irq_ack_notifier ack_notifier;
361 struct work_struct interrupt_work;
362 struct list_head list;
363 int assigned_dev_id;
364 int host_busnr;
365 int host_devfn;
Sheng Yangc1e01512009-02-25 17:22:26 +0800366 unsigned int entries_nr;
Ben-Ami Yassour62c476c2008-09-14 03:48:28 +0300367 int host_irq;
Mark McLoughlindefaf152008-12-02 12:16:33 +0000368 bool host_irq_disabled;
Sheng Yangc1e01512009-02-25 17:22:26 +0800369 struct msix_entry *host_msix_entries;
Ben-Ami Yassour62c476c2008-09-14 03:48:28 +0300370 int guest_irq;
Sheng Yangc1e01512009-02-25 17:22:26 +0800371 struct kvm_guest_msix_entry *guest_msix_entries;
Sheng Yang4f906c12008-11-24 14:32:51 +0800372 unsigned long irq_requested_type;
Sheng Yang5550af42008-10-15 20:15:06 +0800373 int irq_source_id;
Weidong Hanb6535742008-12-08 23:29:53 +0800374 int flags;
Ben-Ami Yassour62c476c2008-09-14 03:48:28 +0300375 struct pci_dev *dev;
376 struct kvm *kvm;
Marcelo Tosatti547de292009-05-07 17:55:13 -0300377 spinlock_t assigned_dev_lock;
Ben-Ami Yassour62c476c2008-09-14 03:48:28 +0300378};
Avi Kivity75858a82009-01-04 17:10:50 +0200379
380struct kvm_irq_mask_notifier {
381 void (*func)(struct kvm_irq_mask_notifier *kimn, bool masked);
382 int irq;
383 struct hlist_node link;
384};
385
386void kvm_register_irq_mask_notifier(struct kvm *kvm, int irq,
387 struct kvm_irq_mask_notifier *kimn);
388void kvm_unregister_irq_mask_notifier(struct kvm *kvm, int irq,
389 struct kvm_irq_mask_notifier *kimn);
390void kvm_fire_mask_notifiers(struct kvm *kvm, int irq, bool mask);
391
Gleb Natapov49256632009-02-04 17:28:14 +0200392int kvm_set_irq(struct kvm *kvm, int irq_source_id, int irq, int level);
Marcelo Tosatti44882ee2009-01-27 15:12:38 -0200393void kvm_notify_acked_irq(struct kvm *kvm, unsigned irqchip, unsigned pin);
Xiantao Zhang3de42dc2008-10-06 13:48:45 +0800394void kvm_register_irq_ack_notifier(struct kvm *kvm,
395 struct kvm_irq_ack_notifier *kian);
Marcelo Tosattifa40a822009-06-04 15:08:24 -0300396void kvm_unregister_irq_ack_notifier(struct kvm *kvm,
397 struct kvm_irq_ack_notifier *kian);
Sheng Yang5550af42008-10-15 20:15:06 +0800398int kvm_request_irq_source_id(struct kvm *kvm);
399void kvm_free_irq_source_id(struct kvm *kvm, int irq_source_id);
Ben-Ami Yassour62c476c2008-09-14 03:48:28 +0300400
Sheng Yang522c68c2009-04-27 20:35:43 +0800401/* For vcpu->arch.iommu_flags */
402#define KVM_IOMMU_CACHE_COHERENCY 0x1
403
Joerg Roedel19de40a2008-12-03 14:43:34 +0100404#ifdef CONFIG_IOMMU_API
Ben-Ami Yassour62c476c2008-09-14 03:48:28 +0300405int kvm_iommu_map_pages(struct kvm *kvm, gfn_t base_gfn,
406 unsigned long npages);
Weidong Han260782b2008-12-02 21:03:39 +0800407int kvm_iommu_map_guest(struct kvm *kvm);
Ben-Ami Yassour62c476c2008-09-14 03:48:28 +0300408int kvm_iommu_unmap_guest(struct kvm *kvm);
Weidong Han260782b2008-12-02 21:03:39 +0800409int kvm_assign_device(struct kvm *kvm,
410 struct kvm_assigned_dev_kernel *assigned_dev);
Weidong Han0a920352008-12-02 21:24:23 +0800411int kvm_deassign_device(struct kvm *kvm,
412 struct kvm_assigned_dev_kernel *assigned_dev);
Joerg Roedel19de40a2008-12-03 14:43:34 +0100413#else /* CONFIG_IOMMU_API */
Ben-Ami Yassour62c476c2008-09-14 03:48:28 +0300414static inline int kvm_iommu_map_pages(struct kvm *kvm,
415 gfn_t base_gfn,
416 unsigned long npages)
417{
418 return 0;
419}
420
Weidong Han260782b2008-12-02 21:03:39 +0800421static inline int kvm_iommu_map_guest(struct kvm *kvm)
Ben-Ami Yassour62c476c2008-09-14 03:48:28 +0300422{
423 return -ENODEV;
424}
425
426static inline int kvm_iommu_unmap_guest(struct kvm *kvm)
427{
428 return 0;
429}
Weidong Han260782b2008-12-02 21:03:39 +0800430
431static inline int kvm_assign_device(struct kvm *kvm,
432 struct kvm_assigned_dev_kernel *assigned_dev)
433{
434 return 0;
435}
Weidong Han0a920352008-12-02 21:24:23 +0800436
437static inline int kvm_deassign_device(struct kvm *kvm,
438 struct kvm_assigned_dev_kernel *assigned_dev)
439{
440 return 0;
441}
Joerg Roedel19de40a2008-12-03 14:43:34 +0100442#endif /* CONFIG_IOMMU_API */
Ben-Ami Yassour62c476c2008-09-14 03:48:28 +0300443
Laurent Vivierd172fcd2007-10-15 17:00:19 +0200444static inline void kvm_guest_enter(void)
445{
Christian Borntraegere56a7a22007-10-18 14:39:10 +0200446 account_system_vtime(current);
Laurent Vivierd172fcd2007-10-15 17:00:19 +0200447 current->flags |= PF_VCPU;
448}
449
450static inline void kvm_guest_exit(void)
451{
Christian Borntraegere56a7a22007-10-18 14:39:10 +0200452 account_system_vtime(current);
Laurent Vivierd172fcd2007-10-15 17:00:19 +0200453 current->flags &= ~PF_VCPU;
454}
455
Avi Kivity6aa8b732006-12-10 02:21:36 -0800456static inline int memslot_id(struct kvm *kvm, struct kvm_memory_slot *slot)
457{
458 return slot - kvm->memslots;
459}
460
Avi Kivity1755fbc2007-11-21 14:44:45 +0200461static inline gpa_t gfn_to_gpa(gfn_t gfn)
462{
463 return (gpa_t)gfn << PAGE_SHIFT;
464}
Avi Kivity6aa8b732006-12-10 02:21:36 -0800465
Ben-Ami Yassour62c476c2008-09-14 03:48:28 +0300466static inline hpa_t pfn_to_hpa(pfn_t pfn)
467{
468 return (hpa_t)pfn << PAGE_SHIFT;
469}
470
Marcelo Tosatti2f599712008-05-27 12:10:20 -0300471static inline void kvm_migrate_timers(struct kvm_vcpu *vcpu)
Avi Kivity2f52d582008-01-16 12:49:30 +0200472{
473 set_bit(KVM_REQ_MIGRATE_TIMER, &vcpu->requests);
474}
475
Avi Kivityba1389b2007-11-18 16:24:12 +0200476enum kvm_stat_kind {
477 KVM_STAT_VM,
478 KVM_STAT_VCPU,
479};
480
Hollis Blanchard417bc302007-10-31 17:24:23 -0500481struct kvm_stats_debugfs_item {
482 const char *name;
483 int offset;
Avi Kivityba1389b2007-11-18 16:24:12 +0200484 enum kvm_stat_kind kind;
Hollis Blanchard417bc302007-10-31 17:24:23 -0500485 struct dentry *dentry;
486};
487extern struct kvm_stats_debugfs_item debugfs_entries[];
Hollis Blanchard76f7c872008-04-15 16:05:42 -0500488extern struct dentry *kvm_debugfs_dir;
Feng(Eric) Liud4c9ff22008-04-10 08:47:53 -0400489
Andrea Arcangelie930bff2008-07-25 16:24:52 +0200490#ifdef KVM_ARCH_WANT_MMU_NOTIFIER
491static inline int mmu_notifier_retry(struct kvm_vcpu *vcpu, unsigned long mmu_seq)
492{
493 if (unlikely(vcpu->kvm->mmu_notifier_count))
494 return 1;
495 /*
496 * Both reads happen under the mmu_lock and both values are
497 * modified under mmu_lock, so there's no need of smb_rmb()
498 * here in between, otherwise mmu_notifier_count should be
499 * read before mmu_notifier_seq, see
500 * mmu_notifier_invalidate_range_end write side.
501 */
502 if (vcpu->kvm->mmu_notifier_seq != mmu_seq)
503 return 1;
504 return 0;
505}
506#endif
507
Avi Kivity399ec802008-11-19 13:58:46 +0200508#ifdef CONFIG_HAVE_KVM_IRQCHIP
509
510#define KVM_MAX_IRQ_ROUTES 1024
511
512int kvm_setup_default_irq_routing(struct kvm *kvm);
513int kvm_set_irq_routing(struct kvm *kvm,
514 const struct kvm_irq_routing_entry *entries,
515 unsigned nr,
516 unsigned flags);
517void kvm_free_irq_routing(struct kvm *kvm);
518
519#else
520
521static inline void kvm_free_irq_routing(struct kvm *kvm) {}
522
523#endif
524
Gregory Haskins721eecb2009-05-20 10:30:49 -0400525#ifdef CONFIG_HAVE_KVM_EVENTFD
526
527void kvm_irqfd_init(struct kvm *kvm);
528int kvm_irqfd(struct kvm *kvm, int fd, int gsi, int flags);
529void kvm_irqfd_release(struct kvm *kvm);
530
531#else
532
533static inline void kvm_irqfd_init(struct kvm *kvm) {}
534static inline int kvm_irqfd(struct kvm *kvm, int fd, int gsi, int flags)
535{
536 return -EINVAL;
537}
538
539static inline void kvm_irqfd_release(struct kvm *kvm) {}
540
541#endif /* CONFIG_HAVE_KVM_EVENTFD */
542
Gleb Natapov73880c82009-06-09 15:56:28 +0300543#ifdef CONFIG_KVM_APIC_ARCHITECTURE
Gleb Natapovc5af89b2009-06-09 15:56:26 +0300544static inline bool kvm_vcpu_is_bsp(struct kvm_vcpu *vcpu)
545{
Marcelo Tosattid3efc8e2009-06-17 10:07:59 -0300546 return vcpu->kvm->bsp_vcpu_id == vcpu->vcpu_id;
Gleb Natapovc5af89b2009-06-09 15:56:26 +0300547}
Avi Kivity6aa8b732006-12-10 02:21:36 -0800548#endif
Gleb Natapov73880c82009-06-09 15:56:28 +0300549#endif