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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>
Alexey Dobriyane8edc6e2007-05-21 01:22:52 +040019#include <asm/signal.h>
Avi Kivity6aa8b732006-12-10 02:21:36 -080020
Avi Kivity6aa8b732006-12-10 02:21:36 -080021#include <linux/kvm.h>
Ingo Molnar102d8322007-02-19 14:37:47 +020022#include <linux/kvm_para.h>
Avi Kivity6aa8b732006-12-10 02:21:36 -080023
Avi Kivityedf88412007-12-16 11:02:48 +020024#include <linux/kvm_types.h>
Hollis Blanchardd77a39d2007-12-03 15:30:23 -060025
Avi Kivityedf88412007-12-16 11:02:48 +020026#include <asm/kvm_host.h>
Zhang Xiantaod657a982007-12-14 09:41:22 +080027
Avi Kivity6aa8b732006-12-10 02:21:36 -080028/*
Avi Kivityd9e368d2007-06-07 19:18:30 +030029 * vcpu->requests bit members
30 */
Avi Kivity3176bc32007-10-16 17:22:08 +020031#define KVM_REQ_TLB_FLUSH 0
Avi Kivity2f52d582008-01-16 12:49:30 +020032#define KVM_REQ_MIGRATE_TIMER 1
Avi Kivityb209749f2007-10-22 16:50:39 +020033#define KVM_REQ_REPORT_TPR_ACCESS 2
Marcelo Tosatti2e53d632008-02-20 14:47:24 -050034#define KVM_REQ_MMU_RELOAD 3
Joerg Roedel71c4dfa2008-02-26 16:49:16 +010035#define KVM_REQ_TRIPLE_FAULT 4
Marcelo Tosatti06e05642008-06-06 16:37:36 -030036#define KVM_REQ_PENDING_TIMER 5
Marcelo Tosattid7690172008-09-08 15:23:48 -030037#define KVM_REQ_UNHALT 6
Marcelo Tosatti4731d4c2008-09-23 13:18:39 -030038#define KVM_REQ_MMU_SYNC 7
Gerd Hoffmannc8076602009-02-04 17:52:04 +010039#define KVM_REQ_KVMCLOCK_UPDATE 8
Marcelo Tosatti32f88402009-05-07 17:55:12 -030040#define KVM_REQ_KICK 9
Avi Kivity6aa8b732006-12-10 02:21:36 -080041
Sheng Yang5550af42008-10-15 20:15:06 +080042#define KVM_USERSPACE_IRQ_SOURCE_ID 0
43
Michael S. Tsirkin6c474692009-06-29 22:24:26 +030044struct kvm;
Avi Kivity6aa8b732006-12-10 02:21:36 -080045struct kvm_vcpu;
Rusty Russellc16f8622007-07-30 21:12:19 +100046extern struct kmem_cache *kvm_vcpu_cache;
Avi Kivity6aa8b732006-12-10 02:21:36 -080047
Gregory Haskins2eeb2e92007-05-31 14:08:53 -040048/*
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 */
54struct kvm_io_bus {
55 int dev_count;
56#define NR_IOBUS_DEVS 6
57 struct kvm_io_device *devs[NR_IOBUS_DEVS];
58};
59
60void kvm_io_bus_init(struct kvm_io_bus *bus);
61void kvm_io_bus_destroy(struct kvm_io_bus *bus);
Michael S. Tsirkinbda90202009-06-29 22:24:32 +030062int kvm_io_bus_write(struct kvm_io_bus *bus, gpa_t addr, int len,
63 const void *val);
64int kvm_io_bus_read(struct kvm_io_bus *bus, gpa_t addr, int len,
65 void *val);
Gregory Haskins090b7af2009-07-07 17:08:44 -040066int __kvm_io_bus_register_dev(struct kvm_io_bus *bus,
Michael S. Tsirkin6c474692009-06-29 22:24:26 +030067 struct kvm_io_device *dev);
Gregory Haskins090b7af2009-07-07 17:08:44 -040068int kvm_io_bus_register_dev(struct kvm *kvm, struct kvm_io_bus *bus,
69 struct kvm_io_device *dev);
70void __kvm_io_bus_unregister_dev(struct kvm_io_bus *bus,
71 struct kvm_io_device *dev);
72void kvm_io_bus_unregister_dev(struct kvm *kvm, struct kvm_io_bus *bus,
73 struct kvm_io_device *dev);
Gregory Haskins2eeb2e92007-05-31 14:08:53 -040074
Zhang Xiantaod657a982007-12-14 09:41:22 +080075struct kvm_vcpu {
Zhang Xiantaod17fbbf2007-12-14 09:45:31 +080076 struct kvm *kvm;
Hollis Blanchard31bb1172008-01-28 17:42:34 -060077#ifdef CONFIG_PREEMPT_NOTIFIERS
Zhang Xiantaod17fbbf2007-12-14 09:45:31 +080078 struct preempt_notifier preempt_notifier;
Hollis Blanchard31bb1172008-01-28 17:42:34 -060079#endif
Zhang Xiantaod17fbbf2007-12-14 09:45:31 +080080 int vcpu_id;
81 struct mutex mutex;
82 int cpu;
83 struct kvm_run *run;
Zhang Xiantaod17fbbf2007-12-14 09:45:31 +080084 unsigned long requests;
Jan Kiszkad0bfb942008-12-15 13:52:10 +010085 unsigned long guest_debug;
Zhang Xiantaod17fbbf2007-12-14 09:45:31 +080086 int fpu_active;
87 int guest_fpu_loaded;
88 wait_queue_head_t wq;
89 int sigset_active;
90 sigset_t sigset;
91 struct kvm_vcpu_stat stat;
92
93#ifdef CONFIG_HAS_IOMEM
94 int mmio_needed;
95 int mmio_read_completed;
96 int mmio_is_write;
97 int mmio_size;
98 unsigned char mmio_data[8];
99 gpa_t mmio_phys_addr;
100#endif
Zhang Xiantaod657a982007-12-14 09:41:22 +0800101
102 struct kvm_vcpu_arch arch;
103};
104
Avi Kivity6aa8b732006-12-10 02:21:36 -0800105struct kvm_memory_slot {
106 gfn_t base_gfn;
107 unsigned long npages;
108 unsigned long flags;
Izik Eidus290fc382007-09-27 14:11:22 +0200109 unsigned long *rmap;
Avi Kivity6aa8b732006-12-10 02:21:36 -0800110 unsigned long *dirty_bitmap;
Marcelo Tosatti05da4552008-02-23 11:44:30 -0300111 struct {
112 unsigned long rmap_pde;
113 int write_count;
Joerg Roedelec04b262009-06-19 15:16:23 +0200114 } *lpage_info[KVM_NR_PAGE_SIZES - 1];
Izik Eidus8a7ae052007-10-18 11:09:33 +0200115 unsigned long userspace_addr;
Izik Eidus80b14b52007-10-25 11:54:04 +0200116 int user_alloc;
Avi Kivity6aa8b732006-12-10 02:21:36 -0800117};
118
Avi Kivity399ec802008-11-19 13:58:46 +0200119struct kvm_kernel_irq_routing_entry {
120 u32 gsi;
Michael S. Tsirkin5116d8f2009-07-26 17:10:01 +0300121 u32 type;
Gleb Natapov49256632009-02-04 17:28:14 +0200122 int (*set)(struct kvm_kernel_irq_routing_entry *e,
Gleb Natapov1a6e4a82009-08-24 11:54:19 +0300123 struct kvm *kvm, int irq_source_id, int level);
Avi Kivity399ec802008-11-19 13:58:46 +0200124 union {
125 struct {
126 unsigned irqchip;
127 unsigned pin;
128 } irqchip;
Sheng Yang79950e12009-02-10 13:57:06 +0800129 struct msi_msg msi;
Avi Kivity399ec802008-11-19 13:58:46 +0200130 };
Gleb Natapov46e624b2009-08-24 11:54:20 +0300131 struct hlist_node link;
132};
133
Gleb Natapov3e71f882009-08-24 11:54:21 +0300134#ifdef __KVM_HAVE_IOAPIC
135
Gleb Natapov46e624b2009-08-24 11:54:20 +0300136struct kvm_irq_routing_table {
Gleb Natapov3e71f882009-08-24 11:54:21 +0300137 int chip[KVM_NR_IRQCHIPS][KVM_IOAPIC_NUM_PINS];
Gleb Natapov46e624b2009-08-24 11:54:20 +0300138 struct kvm_kernel_irq_routing_entry *rt_entries;
139 u32 nr_rt_entries;
140 /*
141 * Array indexed by gsi. Each entry contains list of irq chips
142 * the gsi is connected to.
143 */
144 struct hlist_head map[0];
Avi Kivity399ec802008-11-19 13:58:46 +0200145};
146
Gleb Natapov3e71f882009-08-24 11:54:21 +0300147#else
148
149struct kvm_irq_routing_table {};
150
151#endif
152
Avi Kivity6aa8b732006-12-10 02:21:36 -0800153struct kvm {
Marcelo Tosattiaaee2c92007-12-20 19:18:26 -0500154 spinlock_t mmu_lock;
Marcelo Tosatti84261922009-06-17 10:53:47 -0300155 spinlock_t requests_lock;
Izik Eidus72dc67a2008-02-10 18:04:15 +0200156 struct rw_semaphore slots_lock;
Avi Kivity6d4e4c42007-11-21 16:41:05 +0200157 struct mm_struct *mm; /* userspace tied to this vm */
Avi Kivity6aa8b732006-12-10 02:21:36 -0800158 int nmemslots;
Izik Eiduse0d62c72007-10-24 23:57:46 +0200159 struct kvm_memory_slot memslots[KVM_MEMORY_SLOTS +
160 KVM_PRIVATE_MEM_SLOTS];
Gleb Natapov73880c82009-06-09 15:56:28 +0300161#ifdef CONFIG_KVM_APIC_ARCHITECTURE
162 u32 bsp_vcpu_id;
Gleb Natapovc5af89b2009-06-09 15:56:26 +0300163 struct kvm_vcpu *bsp_vcpu;
Gleb Natapov73880c82009-06-09 15:56:28 +0300164#endif
Rusty Russellfb3f0f52007-07-27 17:16:56 +1000165 struct kvm_vcpu *vcpus[KVM_MAX_VCPUS];
Gleb Natapov73880c82009-06-09 15:56:28 +0300166 atomic_t online_vcpus;
Avi Kivity133de902007-02-12 00:54:44 -0800167 struct list_head vm_list;
Marcelo Tosatti60eead72009-06-04 15:08:23 -0300168 struct mutex lock;
Gregory Haskins2eeb2e92007-05-31 14:08:53 -0400169 struct kvm_io_bus mmio_bus;
Eddie Dong74906342007-06-19 18:05:03 +0300170 struct kvm_io_bus pio_bus;
Gregory Haskins721eecb2009-05-20 10:30:49 -0400171#ifdef CONFIG_HAVE_KVM_EVENTFD
172 struct {
173 spinlock_t lock;
174 struct list_head items;
175 } irqfds;
Gregory Haskinsd34e6b12009-07-07 17:08:49 -0400176 struct list_head ioeventfds;
Gregory Haskins721eecb2009-05-20 10:30:49 -0400177#endif
Avi Kivityba1389b2007-11-18 16:24:12 +0200178 struct kvm_vm_stat stat;
Zhang Xiantaod69fb812007-12-14 09:54:20 +0800179 struct kvm_arch arch;
Izik Eidusd39f13b2008-03-30 16:01:25 +0300180 atomic_t users_count;
Laurent Vivier5f94c172008-05-30 16:05:54 +0200181#ifdef KVM_COALESCED_MMIO_PAGE_OFFSET
182 struct kvm_coalesced_mmio_dev *coalesced_mmio_dev;
183 struct kvm_coalesced_mmio_ring *coalesced_mmio_ring;
184#endif
Andrea Arcangelie930bff2008-07-25 16:24:52 +0200185
Marcelo Tosatti60eead72009-06-04 15:08:23 -0300186 struct mutex irq_lock;
Avi Kivity75858a82009-01-04 17:10:50 +0200187#ifdef CONFIG_HAVE_KVM_IRQCHIP
Gleb Natapov46e624b2009-08-24 11:54:20 +0300188 struct kvm_irq_routing_table *irq_routing;
Avi Kivity75858a82009-01-04 17:10:50 +0200189 struct hlist_head mask_notifier_list;
Gleb Natapov136bdfe2009-08-24 11:54:23 +0300190 struct hlist_head irq_ack_notifier_list;
Avi Kivity75858a82009-01-04 17:10:50 +0200191#endif
192
Andrea Arcangelie930bff2008-07-25 16:24:52 +0200193#ifdef KVM_ARCH_WANT_MMU_NOTIFIER
194 struct mmu_notifier mmu_notifier;
195 unsigned long mmu_notifier_seq;
196 long mmu_notifier_count;
197#endif
Avi Kivity6aa8b732006-12-10 02:21:36 -0800198};
199
Rusty Russellf0242472007-08-01 10:48:02 +1000200/* The guest did something we don't support. */
201#define pr_unimpl(vcpu, fmt, ...) \
202 do { \
203 if (printk_ratelimit()) \
204 printk(KERN_ERR "kvm: %i: cpu%i " fmt, \
205 current->tgid, (vcpu)->vcpu_id , ## __VA_ARGS__); \
Mike Dayd77c26f2007-10-08 09:02:08 -0400206 } while (0)
Rusty Russellf0242472007-08-01 10:48:02 +1000207
Avi Kivity6aa8b732006-12-10 02:21:36 -0800208#define kvm_printf(kvm, fmt ...) printk(KERN_DEBUG fmt)
209#define vcpu_printf(vcpu, fmt...) kvm_printf(vcpu->kvm, fmt)
210
Gleb Natapov988a2ca2009-06-09 15:56:29 +0300211static inline struct kvm_vcpu *kvm_get_vcpu(struct kvm *kvm, int i)
212{
213 smp_rmb();
214 return kvm->vcpus[i];
215}
216
217#define kvm_for_each_vcpu(idx, vcpup, kvm) \
218 for (idx = 0, vcpup = kvm_get_vcpu(kvm, idx); \
219 idx < atomic_read(&kvm->online_vcpus) && vcpup; \
220 vcpup = kvm_get_vcpu(kvm, ++idx))
221
Rusty Russellfb3f0f52007-07-27 17:16:56 +1000222int kvm_vcpu_init(struct kvm_vcpu *vcpu, struct kvm *kvm, unsigned id);
223void kvm_vcpu_uninit(struct kvm_vcpu *vcpu);
224
Carsten Otte313a3dc2007-10-11 19:16:52 +0200225void vcpu_load(struct kvm_vcpu *vcpu);
226void vcpu_put(struct kvm_vcpu *vcpu);
227
Zhang Xiantaof8c16bb2007-11-14 20:40:21 +0800228int kvm_init(void *opaque, unsigned int vcpu_size,
Rusty Russellc16f8622007-07-30 21:12:19 +1000229 struct module *module);
Zhang Xiantaocb498ea2007-11-14 20:39:31 +0800230void kvm_exit(void);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800231
Izik Eidusd39f13b2008-03-30 16:01:25 +0300232void kvm_get_kvm(struct kvm *kvm);
233void kvm_put_kvm(struct kvm *kvm);
234
Avi Kivity6aa8b732006-12-10 02:21:36 -0800235#define HPA_MSB ((sizeof(hpa_t) * 8) - 1)
236#define HPA_ERR_MASK ((hpa_t)1 << HPA_MSB)
237static inline int is_error_hpa(hpa_t hpa) { return hpa >> HPA_MSB; }
Avi Kivity039576c2007-03-20 12:46:50 +0200238struct page *gva_to_page(struct kvm_vcpu *vcpu, gva_t gva);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800239
Izik Eiduscea7bb22007-10-17 19:17:48 +0200240extern struct page *bad_page;
Anthony Liguori35149e22008-04-02 14:46:56 -0500241extern pfn_t bad_pfn;
Avi Kivity6aa8b732006-12-10 02:21:36 -0800242
Izik Eiduscea7bb22007-10-17 19:17:48 +0200243int is_error_page(struct page *page);
Anthony Liguori35149e22008-04-02 14:46:56 -0500244int is_error_pfn(pfn_t pfn);
Izik Eidusf9d46eb2007-11-11 22:02:22 +0200245int kvm_is_error_hva(unsigned long addr);
Izik Eidus210c7c42007-10-24 23:52:57 +0200246int kvm_set_memory_region(struct kvm *kvm,
247 struct kvm_userspace_memory_region *mem,
248 int user_alloc);
Sheng Yangf78e0e22007-10-29 09:40:42 +0800249int __kvm_set_memory_region(struct kvm *kvm,
250 struct kvm_userspace_memory_region *mem,
251 int user_alloc);
Zhang Xiantao0de10342007-11-20 16:25:04 +0800252int kvm_arch_set_memory_region(struct kvm *kvm,
253 struct kvm_userspace_memory_region *mem,
254 struct kvm_memory_slot old,
255 int user_alloc);
Marcelo Tosatti54dee992009-06-11 12:07:44 -0300256void kvm_disable_largepages(void);
Marcelo Tosatti34d4cb82008-07-10 20:49:31 -0300257void kvm_arch_flush_shadow(struct kvm *kvm);
Izik Eidus290fc382007-09-27 14:11:22 +0200258gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn);
Avi Kivity954bbbc2007-03-30 14:02:32 +0300259struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn);
Marcelo Tosatti05da4552008-02-23 11:44:30 -0300260unsigned long gfn_to_hva(struct kvm *kvm, gfn_t gfn);
Izik Eidusb4231d62007-11-20 11:49:33 +0200261void kvm_release_page_clean(struct page *page);
262void kvm_release_page_dirty(struct page *page);
Anthony Liguori35149e22008-04-02 14:46:56 -0500263void kvm_set_page_dirty(struct page *page);
264void kvm_set_page_accessed(struct page *page);
265
266pfn_t gfn_to_pfn(struct kvm *kvm, gfn_t gfn);
267void kvm_release_pfn_dirty(pfn_t);
268void kvm_release_pfn_clean(pfn_t pfn);
269void kvm_set_pfn_dirty(pfn_t pfn);
270void kvm_set_pfn_accessed(pfn_t pfn);
271void kvm_get_pfn(pfn_t pfn);
272
Izik Eidus195aefd2007-10-01 22:14:18 +0200273int kvm_read_guest_page(struct kvm *kvm, gfn_t gfn, void *data, int offset,
274 int len);
Marcelo Tosatti7ec54582007-12-20 19:18:23 -0500275int kvm_read_guest_atomic(struct kvm *kvm, gpa_t gpa, void *data,
276 unsigned long len);
Izik Eidus195aefd2007-10-01 22:14:18 +0200277int kvm_read_guest(struct kvm *kvm, gpa_t gpa, void *data, unsigned long len);
278int kvm_write_guest_page(struct kvm *kvm, gfn_t gfn, const void *data,
279 int offset, int len);
280int kvm_write_guest(struct kvm *kvm, gpa_t gpa, const void *data,
281 unsigned long len);
282int kvm_clear_guest_page(struct kvm *kvm, gfn_t gfn, int offset, int len);
283int kvm_clear_guest(struct kvm *kvm, gpa_t gpa, unsigned long len);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800284struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn);
Izik Eiduse0d62c72007-10-24 23:57:46 +0200285int kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800286void mark_page_dirty(struct kvm *kvm, gfn_t gfn);
287
Hollis Blanchard8776e512007-10-31 17:24:24 -0500288void kvm_vcpu_block(struct kvm_vcpu *vcpu);
Zhai, Edwind255f4f2009-10-09 18:03:20 +0800289void kvm_vcpu_on_spin(struct kvm_vcpu *vcpu);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800290void kvm_resched(struct kvm_vcpu *vcpu);
Avi Kivity7702fd12007-06-14 16:27:40 +0300291void kvm_load_guest_fpu(struct kvm_vcpu *vcpu);
292void kvm_put_guest_fpu(struct kvm_vcpu *vcpu);
Avi Kivityd9e368d2007-06-07 19:18:30 +0300293void kvm_flush_remote_tlbs(struct kvm *kvm);
Marcelo Tosatti2e53d632008-02-20 14:47:24 -0500294void kvm_reload_remote_mmus(struct kvm *kvm);
Avi Kivity6aa8b732006-12-10 02:21:36 -0800295
Carsten Otte043405e2007-10-10 17:16:19 +0200296long kvm_arch_dev_ioctl(struct file *filp,
297 unsigned int ioctl, unsigned long arg);
Carsten Otte313a3dc2007-10-11 19:16:52 +0200298long kvm_arch_vcpu_ioctl(struct file *filp,
299 unsigned int ioctl, unsigned long arg);
Zhang Xiantao018d00d2007-11-15 23:07:47 +0800300
301int kvm_dev_ioctl_check_extension(long ext);
302
Zhang Xiantao5bb064d2007-11-18 20:29:43 +0800303int kvm_get_dirty_log(struct kvm *kvm,
304 struct kvm_dirty_log *log, int *is_dirty);
305int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm,
306 struct kvm_dirty_log *log);
307
Carsten Otte1fe779f2007-10-29 16:08:35 +0100308int kvm_vm_ioctl_set_memory_region(struct kvm *kvm,
309 struct
310 kvm_userspace_memory_region *mem,
311 int user_alloc);
312long kvm_arch_vm_ioctl(struct file *filp,
313 unsigned int ioctl, unsigned long arg);
Carsten Otte313a3dc2007-10-11 19:16:52 +0200314
Hollis Blanchardd0752062007-10-31 17:24:25 -0500315int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu);
316int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu);
317
Zhang Xiantao8b006792007-11-16 13:05:55 +0800318int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
319 struct kvm_translation *tr);
320
Hollis Blanchardb6c7a5d2007-11-01 14:16:10 -0500321int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs);
322int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs);
323int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
324 struct kvm_sregs *sregs);
325int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
326 struct kvm_sregs *sregs);
Marcelo Tosatti62d9f0d2008-04-11 13:24:45 -0300327int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu,
328 struct kvm_mp_state *mp_state);
329int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu,
330 struct kvm_mp_state *mp_state);
Jan Kiszkad0bfb942008-12-15 13:52:10 +0100331int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
332 struct kvm_guest_debug *dbg);
Hollis Blanchardb6c7a5d2007-11-01 14:16:10 -0500333int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run);
334
Zhang Xiantaof8c16bb2007-11-14 20:40:21 +0800335int kvm_arch_init(void *opaque);
336void kvm_arch_exit(void);
Carsten Otte043405e2007-10-10 17:16:19 +0200337
Zhang Xiantaoe9b11c12007-11-14 20:38:21 +0800338int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu);
339void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu);
340
341void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu);
342void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
343void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu);
344struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id);
Avi Kivity26e52152007-11-20 15:30:24 +0200345int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu);
Hollis Blanchardd40ccc62007-11-19 14:04:43 -0600346void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu);
Zhang Xiantaoe9b11c12007-11-14 20:38:21 +0800347
348int kvm_arch_vcpu_reset(struct kvm_vcpu *vcpu);
Alexander Graf10474ae2009-09-15 11:37:46 +0200349int kvm_arch_hardware_enable(void *garbage);
Zhang Xiantaoe9b11c12007-11-14 20:38:21 +0800350void kvm_arch_hardware_disable(void *garbage);
351int kvm_arch_hardware_setup(void);
352void kvm_arch_hardware_unsetup(void);
353void kvm_arch_check_processor_compat(void *rtn);
Zhang Xiantao1d737c82007-12-14 09:35:10 +0800354int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu);
Zhang Xiantaoe9b11c12007-11-14 20:38:21 +0800355
Zhang Xiantaod19a9cd2007-11-18 18:43:45 +0800356void kvm_free_physmem(struct kvm *kvm);
357
358struct kvm *kvm_arch_create_vm(void);
359void kvm_arch_destroy_vm(struct kvm *kvm);
Xiantao Zhang8a98f662008-10-06 13:47:38 +0800360void kvm_free_all_assigned_devices(struct kvm *kvm);
Sheng Yangad8ba2c2009-01-06 10:03:02 +0800361void kvm_arch_sync_events(struct kvm *kvm);
Zhang Xiantaoe9b11c12007-11-14 20:38:21 +0800362
Marcelo Tosatti3d808402008-04-11 14:53:26 -0300363int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu);
Zhang Xiantao57361992007-12-17 14:21:40 +0800364void kvm_vcpu_kick(struct kvm_vcpu *vcpu);
Zhang Xiantao682c59a2007-12-11 20:36:00 +0800365
Xiantao Zhangc77fb9d2008-09-27 10:55:40 +0800366int kvm_is_mmio_pfn(pfn_t pfn);
367
Ben-Ami Yassour62c476c2008-09-14 03:48:28 +0300368struct kvm_irq_ack_notifier {
369 struct hlist_node link;
370 unsigned gsi;
371 void (*irq_acked)(struct kvm_irq_ack_notifier *kian);
372};
373
Sheng Yang2350bd12009-02-25 17:22:27 +0800374#define KVM_ASSIGNED_MSIX_PENDING 0x1
Sheng Yangc1e01512009-02-25 17:22:26 +0800375struct kvm_guest_msix_entry {
376 u32 vector;
377 u16 entry;
378 u16 flags;
379};
380
Ben-Ami Yassour62c476c2008-09-14 03:48:28 +0300381struct kvm_assigned_dev_kernel {
382 struct kvm_irq_ack_notifier ack_notifier;
383 struct work_struct interrupt_work;
384 struct list_head list;
385 int assigned_dev_id;
386 int host_busnr;
387 int host_devfn;
Sheng Yangc1e01512009-02-25 17:22:26 +0800388 unsigned int entries_nr;
Ben-Ami Yassour62c476c2008-09-14 03:48:28 +0300389 int host_irq;
Mark McLoughlindefaf152008-12-02 12:16:33 +0000390 bool host_irq_disabled;
Sheng Yangc1e01512009-02-25 17:22:26 +0800391 struct msix_entry *host_msix_entries;
Ben-Ami Yassour62c476c2008-09-14 03:48:28 +0300392 int guest_irq;
Sheng Yangc1e01512009-02-25 17:22:26 +0800393 struct kvm_guest_msix_entry *guest_msix_entries;
Sheng Yang4f906c12008-11-24 14:32:51 +0800394 unsigned long irq_requested_type;
Sheng Yang5550af42008-10-15 20:15:06 +0800395 int irq_source_id;
Weidong Hanb6535742008-12-08 23:29:53 +0800396 int flags;
Ben-Ami Yassour62c476c2008-09-14 03:48:28 +0300397 struct pci_dev *dev;
398 struct kvm *kvm;
Marcelo Tosatti547de292009-05-07 17:55:13 -0300399 spinlock_t assigned_dev_lock;
Ben-Ami Yassour62c476c2008-09-14 03:48:28 +0300400};
Avi Kivity75858a82009-01-04 17:10:50 +0200401
402struct kvm_irq_mask_notifier {
403 void (*func)(struct kvm_irq_mask_notifier *kimn, bool masked);
404 int irq;
405 struct hlist_node link;
406};
407
408void kvm_register_irq_mask_notifier(struct kvm *kvm, int irq,
409 struct kvm_irq_mask_notifier *kimn);
410void kvm_unregister_irq_mask_notifier(struct kvm *kvm, int irq,
411 struct kvm_irq_mask_notifier *kimn);
412void kvm_fire_mask_notifiers(struct kvm *kvm, int irq, bool mask);
413
Gleb Natapov46e624b2009-08-24 11:54:20 +0300414#ifdef __KVM_HAVE_IOAPIC
415void kvm_get_intr_delivery_bitmask(struct kvm_ioapic *ioapic,
416 union kvm_ioapic_redirect_entry *entry,
417 unsigned long *deliver_bitmask);
418#endif
419int kvm_set_irq(struct kvm *kvm, int irq_source_id, u32 irq, int level);
Marcelo Tosatti44882ee2009-01-27 15:12:38 -0200420void kvm_notify_acked_irq(struct kvm *kvm, unsigned irqchip, unsigned pin);
Xiantao Zhang3de42dc2008-10-06 13:48:45 +0800421void kvm_register_irq_ack_notifier(struct kvm *kvm,
422 struct kvm_irq_ack_notifier *kian);
Marcelo Tosattifa40a822009-06-04 15:08:24 -0300423void kvm_unregister_irq_ack_notifier(struct kvm *kvm,
424 struct kvm_irq_ack_notifier *kian);
Sheng Yang5550af42008-10-15 20:15:06 +0800425int kvm_request_irq_source_id(struct kvm *kvm);
426void kvm_free_irq_source_id(struct kvm *kvm, int irq_source_id);
Ben-Ami Yassour62c476c2008-09-14 03:48:28 +0300427
Sheng Yang522c68c2009-04-27 20:35:43 +0800428/* For vcpu->arch.iommu_flags */
429#define KVM_IOMMU_CACHE_COHERENCY 0x1
430
Joerg Roedel19de40a2008-12-03 14:43:34 +0100431#ifdef CONFIG_IOMMU_API
Ben-Ami Yassour62c476c2008-09-14 03:48:28 +0300432int kvm_iommu_map_pages(struct kvm *kvm, gfn_t base_gfn,
433 unsigned long npages);
Weidong Han260782b2008-12-02 21:03:39 +0800434int kvm_iommu_map_guest(struct kvm *kvm);
Ben-Ami Yassour62c476c2008-09-14 03:48:28 +0300435int kvm_iommu_unmap_guest(struct kvm *kvm);
Weidong Han260782b2008-12-02 21:03:39 +0800436int kvm_assign_device(struct kvm *kvm,
437 struct kvm_assigned_dev_kernel *assigned_dev);
Weidong Han0a920352008-12-02 21:24:23 +0800438int kvm_deassign_device(struct kvm *kvm,
439 struct kvm_assigned_dev_kernel *assigned_dev);
Joerg Roedel19de40a2008-12-03 14:43:34 +0100440#else /* CONFIG_IOMMU_API */
Ben-Ami Yassour62c476c2008-09-14 03:48:28 +0300441static inline int kvm_iommu_map_pages(struct kvm *kvm,
442 gfn_t base_gfn,
443 unsigned long npages)
444{
445 return 0;
446}
447
Weidong Han260782b2008-12-02 21:03:39 +0800448static inline int kvm_iommu_map_guest(struct kvm *kvm)
Ben-Ami Yassour62c476c2008-09-14 03:48:28 +0300449{
450 return -ENODEV;
451}
452
453static inline int kvm_iommu_unmap_guest(struct kvm *kvm)
454{
455 return 0;
456}
Weidong Han260782b2008-12-02 21:03:39 +0800457
458static inline int kvm_assign_device(struct kvm *kvm,
459 struct kvm_assigned_dev_kernel *assigned_dev)
460{
461 return 0;
462}
Weidong Han0a920352008-12-02 21:24:23 +0800463
464static inline int kvm_deassign_device(struct kvm *kvm,
465 struct kvm_assigned_dev_kernel *assigned_dev)
466{
467 return 0;
468}
Joerg Roedel19de40a2008-12-03 14:43:34 +0100469#endif /* CONFIG_IOMMU_API */
Ben-Ami Yassour62c476c2008-09-14 03:48:28 +0300470
Laurent Vivierd172fcd2007-10-15 17:00:19 +0200471static inline void kvm_guest_enter(void)
472{
Christian Borntraegere56a7a22007-10-18 14:39:10 +0200473 account_system_vtime(current);
Laurent Vivierd172fcd2007-10-15 17:00:19 +0200474 current->flags |= PF_VCPU;
475}
476
477static inline void kvm_guest_exit(void)
478{
Christian Borntraegere56a7a22007-10-18 14:39:10 +0200479 account_system_vtime(current);
Laurent Vivierd172fcd2007-10-15 17:00:19 +0200480 current->flags &= ~PF_VCPU;
481}
482
Avi Kivity6aa8b732006-12-10 02:21:36 -0800483static inline int memslot_id(struct kvm *kvm, struct kvm_memory_slot *slot)
484{
485 return slot - kvm->memslots;
486}
487
Avi Kivity1755fbc2007-11-21 14:44:45 +0200488static inline gpa_t gfn_to_gpa(gfn_t gfn)
489{
490 return (gpa_t)gfn << PAGE_SHIFT;
491}
Avi Kivity6aa8b732006-12-10 02:21:36 -0800492
Ben-Ami Yassour62c476c2008-09-14 03:48:28 +0300493static inline hpa_t pfn_to_hpa(pfn_t pfn)
494{
495 return (hpa_t)pfn << PAGE_SHIFT;
496}
497
Marcelo Tosatti2f599712008-05-27 12:10:20 -0300498static inline void kvm_migrate_timers(struct kvm_vcpu *vcpu)
Avi Kivity2f52d582008-01-16 12:49:30 +0200499{
500 set_bit(KVM_REQ_MIGRATE_TIMER, &vcpu->requests);
501}
502
Avi Kivityba1389b2007-11-18 16:24:12 +0200503enum kvm_stat_kind {
504 KVM_STAT_VM,
505 KVM_STAT_VCPU,
506};
507
Hollis Blanchard417bc302007-10-31 17:24:23 -0500508struct kvm_stats_debugfs_item {
509 const char *name;
510 int offset;
Avi Kivityba1389b2007-11-18 16:24:12 +0200511 enum kvm_stat_kind kind;
Hollis Blanchard417bc302007-10-31 17:24:23 -0500512 struct dentry *dentry;
513};
514extern struct kvm_stats_debugfs_item debugfs_entries[];
Hollis Blanchard76f7c872008-04-15 16:05:42 -0500515extern struct dentry *kvm_debugfs_dir;
Feng(Eric) Liud4c9ff22008-04-10 08:47:53 -0400516
Andrea Arcangelie930bff2008-07-25 16:24:52 +0200517#ifdef KVM_ARCH_WANT_MMU_NOTIFIER
518static inline int mmu_notifier_retry(struct kvm_vcpu *vcpu, unsigned long mmu_seq)
519{
520 if (unlikely(vcpu->kvm->mmu_notifier_count))
521 return 1;
522 /*
523 * Both reads happen under the mmu_lock and both values are
524 * modified under mmu_lock, so there's no need of smb_rmb()
525 * here in between, otherwise mmu_notifier_count should be
526 * read before mmu_notifier_seq, see
527 * mmu_notifier_invalidate_range_end write side.
528 */
529 if (vcpu->kvm->mmu_notifier_seq != mmu_seq)
530 return 1;
531 return 0;
532}
533#endif
534
Avi Kivity399ec802008-11-19 13:58:46 +0200535#ifdef CONFIG_HAVE_KVM_IRQCHIP
536
537#define KVM_MAX_IRQ_ROUTES 1024
538
539int kvm_setup_default_irq_routing(struct kvm *kvm);
540int kvm_set_irq_routing(struct kvm *kvm,
541 const struct kvm_irq_routing_entry *entries,
542 unsigned nr,
543 unsigned flags);
544void kvm_free_irq_routing(struct kvm *kvm);
545
546#else
547
548static inline void kvm_free_irq_routing(struct kvm *kvm) {}
549
550#endif
551
Gregory Haskins721eecb2009-05-20 10:30:49 -0400552#ifdef CONFIG_HAVE_KVM_EVENTFD
553
Gregory Haskinsd34e6b12009-07-07 17:08:49 -0400554void kvm_eventfd_init(struct kvm *kvm);
Gregory Haskins721eecb2009-05-20 10:30:49 -0400555int kvm_irqfd(struct kvm *kvm, int fd, int gsi, int flags);
556void kvm_irqfd_release(struct kvm *kvm);
Gregory Haskinsd34e6b12009-07-07 17:08:49 -0400557int kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args);
Gregory Haskins721eecb2009-05-20 10:30:49 -0400558
559#else
560
Gregory Haskinsd34e6b12009-07-07 17:08:49 -0400561static inline void kvm_eventfd_init(struct kvm *kvm) {}
Gregory Haskins721eecb2009-05-20 10:30:49 -0400562static inline int kvm_irqfd(struct kvm *kvm, int fd, int gsi, int flags)
563{
564 return -EINVAL;
565}
566
567static inline void kvm_irqfd_release(struct kvm *kvm) {}
Gregory Haskinsd34e6b12009-07-07 17:08:49 -0400568static inline int kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args)
569{
570 return -ENOSYS;
571}
Gregory Haskins721eecb2009-05-20 10:30:49 -0400572
573#endif /* CONFIG_HAVE_KVM_EVENTFD */
574
Gleb Natapov73880c82009-06-09 15:56:28 +0300575#ifdef CONFIG_KVM_APIC_ARCHITECTURE
Gleb Natapovc5af89b2009-06-09 15:56:26 +0300576static inline bool kvm_vcpu_is_bsp(struct kvm_vcpu *vcpu)
577{
Marcelo Tosattid3efc8e2009-06-17 10:07:59 -0300578 return vcpu->kvm->bsp_vcpu_id == vcpu->vcpu_id;
Gleb Natapovc5af89b2009-06-09 15:56:26 +0300579}
Avi Kivity6aa8b732006-12-10 02:21:36 -0800580#endif
Avi Kivitybfd99ff2009-08-26 14:57:50 +0300581
582#ifdef __KVM_HAVE_DEVICE_ASSIGNMENT
583
584long kvm_vm_ioctl_assigned_device(struct kvm *kvm, unsigned ioctl,
585 unsigned long arg);
586
587#else
588
589static inline long kvm_vm_ioctl_assigned_device(struct kvm *kvm, unsigned ioctl,
590 unsigned long arg)
591{
592 return -ENOTTY;
593}
594
Gleb Natapov73880c82009-06-09 15:56:28 +0300595#endif
Avi Kivitybfd99ff2009-08-26 14:57:50 +0300596
597#endif
598