Avi Kivity | edf8841 | 2007-12-16 11:02:48 +0200 | [diff] [blame] | 1 | #ifndef __KVM_HOST_H |
| 2 | #define __KVM_HOST_H |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 3 | |
| 4 | /* |
| 5 | * This work is licensed under the terms of the GNU GPL, version 2. See |
| 6 | * the COPYING file in the top-level directory. |
| 7 | */ |
| 8 | |
| 9 | #include <linux/types.h> |
Christian Borntraeger | e56a7a2 | 2007-10-18 14:39:10 +0200 | [diff] [blame] | 10 | #include <linux/hardirq.h> |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 11 | #include <linux/list.h> |
| 12 | #include <linux/mutex.h> |
| 13 | #include <linux/spinlock.h> |
Markus Rechberger | 06ff0d3 | 2007-05-27 10:46:52 +0300 | [diff] [blame] | 14 | #include <linux/signal.h> |
| 15 | #include <linux/sched.h> |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 16 | #include <linux/mm.h> |
Avi Kivity | 15ad714 | 2007-07-11 18:17:21 +0300 | [diff] [blame] | 17 | #include <linux/preempt.h> |
Sheng Yang | 0937c48 | 2008-11-24 14:32:53 +0800 | [diff] [blame] | 18 | #include <linux/msi.h> |
Jan Kiszka | d89f5ef | 2010-11-09 17:02:49 +0100 | [diff] [blame] | 19 | #include <linux/slab.h> |
Michael S. Tsirkin | bd2b53b | 2010-11-18 19:09:08 +0200 | [diff] [blame] | 20 | #include <linux/rcupdate.h> |
Alexey Dobriyan | e8edc6e | 2007-05-21 01:22:52 +0400 | [diff] [blame] | 21 | #include <asm/signal.h> |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 22 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 23 | #include <linux/kvm.h> |
Ingo Molnar | 102d832 | 2007-02-19 14:37:47 +0200 | [diff] [blame] | 24 | #include <linux/kvm_para.h> |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 25 | |
Avi Kivity | edf8841 | 2007-12-16 11:02:48 +0200 | [diff] [blame] | 26 | #include <linux/kvm_types.h> |
Hollis Blanchard | d77a39d | 2007-12-03 15:30:23 -0600 | [diff] [blame] | 27 | |
Avi Kivity | edf8841 | 2007-12-16 11:02:48 +0200 | [diff] [blame] | 28 | #include <asm/kvm_host.h> |
Zhang Xiantao | d657a98 | 2007-12-14 09:41:22 +0800 | [diff] [blame] | 29 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 30 | /* |
Avi Kivity | d9e368d | 2007-06-07 19:18:30 +0300 | [diff] [blame] | 31 | * vcpu->requests bit members |
| 32 | */ |
Avi Kivity | 3176bc3 | 2007-10-16 17:22:08 +0200 | [diff] [blame] | 33 | #define KVM_REQ_TLB_FLUSH 0 |
Avi Kivity | 2f52d58 | 2008-01-16 12:49:30 +0200 | [diff] [blame] | 34 | #define KVM_REQ_MIGRATE_TIMER 1 |
Avi Kivity | b209749f | 2007-10-22 16:50:39 +0200 | [diff] [blame] | 35 | #define KVM_REQ_REPORT_TPR_ACCESS 2 |
Marcelo Tosatti | 2e53d63 | 2008-02-20 14:47:24 -0500 | [diff] [blame] | 36 | #define KVM_REQ_MMU_RELOAD 3 |
Joerg Roedel | 71c4dfa | 2008-02-26 16:49:16 +0100 | [diff] [blame] | 37 | #define KVM_REQ_TRIPLE_FAULT 4 |
Marcelo Tosatti | 06e0564 | 2008-06-06 16:37:36 -0300 | [diff] [blame] | 38 | #define KVM_REQ_PENDING_TIMER 5 |
Marcelo Tosatti | d769017 | 2008-09-08 15:23:48 -0300 | [diff] [blame] | 39 | #define KVM_REQ_UNHALT 6 |
Marcelo Tosatti | 4731d4c | 2008-09-23 13:18:39 -0300 | [diff] [blame] | 40 | #define KVM_REQ_MMU_SYNC 7 |
Zachary Amsden | 34c238a | 2010-09-18 14:38:14 -1000 | [diff] [blame] | 41 | #define KVM_REQ_CLOCK_UPDATE 8 |
Marcelo Tosatti | 32f8840 | 2009-05-07 17:55:12 -0300 | [diff] [blame] | 42 | #define KVM_REQ_KICK 9 |
Avi Kivity | 02daab2 | 2009-12-30 12:40:26 +0200 | [diff] [blame] | 43 | #define KVM_REQ_DEACTIVATE_FPU 10 |
Avi Kivity | 3842d13 | 2010-07-27 12:30:24 +0300 | [diff] [blame] | 44 | #define KVM_REQ_EVENT 11 |
Gleb Natapov | af585b9 | 2010-10-14 11:22:46 +0200 | [diff] [blame] | 45 | #define KVM_REQ_APF_HALT 12 |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 46 | |
Sheng Yang | 5550af4 | 2008-10-15 20:15:06 +0800 | [diff] [blame] | 47 | #define KVM_USERSPACE_IRQ_SOURCE_ID 0 |
| 48 | |
Michael S. Tsirkin | 6c47469 | 2009-06-29 22:24:26 +0300 | [diff] [blame] | 49 | struct kvm; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 50 | struct kvm_vcpu; |
Rusty Russell | c16f862 | 2007-07-30 21:12:19 +1000 | [diff] [blame] | 51 | extern struct kmem_cache *kvm_vcpu_cache; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 52 | |
Gregory Haskins | 2eeb2e9 | 2007-05-31 14:08:53 -0400 | [diff] [blame] | 53 | /* |
| 54 | * It would be nice to use something smarter than a linear search, TBD... |
| 55 | * Thankfully we dont expect many devices to register (famous last words :), |
| 56 | * so until then it will suffice. At least its abstracted so we can change |
| 57 | * in one place. |
| 58 | */ |
| 59 | struct kvm_io_bus { |
| 60 | int dev_count; |
Sridhar Samudrala | e80e2a6 | 2010-03-30 16:48:25 -0700 | [diff] [blame] | 61 | #define NR_IOBUS_DEVS 200 |
Gregory Haskins | 2eeb2e9 | 2007-05-31 14:08:53 -0400 | [diff] [blame] | 62 | struct kvm_io_device *devs[NR_IOBUS_DEVS]; |
| 63 | }; |
| 64 | |
Marcelo Tosatti | e93f8a0 | 2009-12-23 14:35:24 -0200 | [diff] [blame] | 65 | enum kvm_bus { |
| 66 | KVM_MMIO_BUS, |
| 67 | KVM_PIO_BUS, |
| 68 | KVM_NR_BUSES |
| 69 | }; |
| 70 | |
| 71 | int kvm_io_bus_write(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr, |
| 72 | int len, const void *val); |
| 73 | int kvm_io_bus_read(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr, int len, |
Michael S. Tsirkin | bda9020 | 2009-06-29 22:24:32 +0300 | [diff] [blame] | 74 | void *val); |
Marcelo Tosatti | e93f8a0 | 2009-12-23 14:35:24 -0200 | [diff] [blame] | 75 | int kvm_io_bus_register_dev(struct kvm *kvm, enum kvm_bus bus_idx, |
Gregory Haskins | 090b7af | 2009-07-07 17:08:44 -0400 | [diff] [blame] | 76 | struct kvm_io_device *dev); |
Marcelo Tosatti | e93f8a0 | 2009-12-23 14:35:24 -0200 | [diff] [blame] | 77 | int kvm_io_bus_unregister_dev(struct kvm *kvm, enum kvm_bus bus_idx, |
| 78 | struct kvm_io_device *dev); |
Gregory Haskins | 2eeb2e9 | 2007-05-31 14:08:53 -0400 | [diff] [blame] | 79 | |
Gleb Natapov | af585b9 | 2010-10-14 11:22:46 +0200 | [diff] [blame] | 80 | #ifdef CONFIG_KVM_ASYNC_PF |
| 81 | struct kvm_async_pf { |
| 82 | struct work_struct work; |
| 83 | struct list_head link; |
| 84 | struct list_head queue; |
| 85 | struct kvm_vcpu *vcpu; |
| 86 | struct mm_struct *mm; |
| 87 | gva_t gva; |
| 88 | unsigned long addr; |
| 89 | struct kvm_arch_async_pf arch; |
| 90 | struct page *page; |
| 91 | bool done; |
| 92 | }; |
| 93 | |
| 94 | void kvm_clear_async_pf_completion_queue(struct kvm_vcpu *vcpu); |
| 95 | void kvm_check_async_pf_completion(struct kvm_vcpu *vcpu); |
| 96 | int kvm_setup_async_pf(struct kvm_vcpu *vcpu, gva_t gva, gfn_t gfn, |
| 97 | struct kvm_arch_async_pf *arch); |
Gleb Natapov | 344d958 | 2010-10-14 11:22:50 +0200 | [diff] [blame] | 98 | int kvm_async_pf_wakeup_all(struct kvm_vcpu *vcpu); |
Gleb Natapov | af585b9 | 2010-10-14 11:22:46 +0200 | [diff] [blame] | 99 | #endif |
| 100 | |
Zhang Xiantao | d657a98 | 2007-12-14 09:41:22 +0800 | [diff] [blame] | 101 | struct kvm_vcpu { |
Zhang Xiantao | d17fbbf | 2007-12-14 09:45:31 +0800 | [diff] [blame] | 102 | struct kvm *kvm; |
Hollis Blanchard | 31bb117 | 2008-01-28 17:42:34 -0600 | [diff] [blame] | 103 | #ifdef CONFIG_PREEMPT_NOTIFIERS |
Zhang Xiantao | d17fbbf | 2007-12-14 09:45:31 +0800 | [diff] [blame] | 104 | struct preempt_notifier preempt_notifier; |
Hollis Blanchard | 31bb117 | 2008-01-28 17:42:34 -0600 | [diff] [blame] | 105 | #endif |
Zhang Xiantao | d17fbbf | 2007-12-14 09:45:31 +0800 | [diff] [blame] | 106 | int vcpu_id; |
| 107 | struct mutex mutex; |
| 108 | int cpu; |
Avi Kivity | d94e1dc | 2010-05-03 16:54:48 +0300 | [diff] [blame] | 109 | atomic_t guest_mode; |
Zhang Xiantao | d17fbbf | 2007-12-14 09:45:31 +0800 | [diff] [blame] | 110 | struct kvm_run *run; |
Zhang Xiantao | d17fbbf | 2007-12-14 09:45:31 +0800 | [diff] [blame] | 111 | unsigned long requests; |
Jan Kiszka | d0bfb94 | 2008-12-15 13:52:10 +0100 | [diff] [blame] | 112 | unsigned long guest_debug; |
Marcelo Tosatti | f656ce0 | 2009-12-23 14:35:25 -0200 | [diff] [blame] | 113 | int srcu_idx; |
| 114 | |
Zhang Xiantao | d17fbbf | 2007-12-14 09:45:31 +0800 | [diff] [blame] | 115 | int fpu_active; |
Dexuan Cui | 2acf923 | 2010-06-10 11:27:12 +0800 | [diff] [blame] | 116 | int guest_fpu_loaded, guest_xcr0_loaded; |
Zhang Xiantao | d17fbbf | 2007-12-14 09:45:31 +0800 | [diff] [blame] | 117 | wait_queue_head_t wq; |
| 118 | int sigset_active; |
| 119 | sigset_t sigset; |
| 120 | struct kvm_vcpu_stat stat; |
| 121 | |
| 122 | #ifdef CONFIG_HAS_IOMEM |
| 123 | int mmio_needed; |
| 124 | int mmio_read_completed; |
| 125 | int mmio_is_write; |
| 126 | int mmio_size; |
| 127 | unsigned char mmio_data[8]; |
| 128 | gpa_t mmio_phys_addr; |
| 129 | #endif |
Zhang Xiantao | d657a98 | 2007-12-14 09:41:22 +0800 | [diff] [blame] | 130 | |
Gleb Natapov | af585b9 | 2010-10-14 11:22:46 +0200 | [diff] [blame] | 131 | #ifdef CONFIG_KVM_ASYNC_PF |
| 132 | struct { |
| 133 | u32 queued; |
| 134 | struct list_head queue; |
| 135 | struct list_head done; |
| 136 | spinlock_t lock; |
| 137 | } async_pf; |
| 138 | #endif |
| 139 | |
Zhang Xiantao | d657a98 | 2007-12-14 09:41:22 +0800 | [diff] [blame] | 140 | struct kvm_vcpu_arch arch; |
| 141 | }; |
| 142 | |
Takuya Yoshikawa | 660c22c | 2010-04-13 22:47:24 +0900 | [diff] [blame] | 143 | /* |
| 144 | * Some of the bitops functions do not support too long bitmaps. |
| 145 | * This number must be determined not to exceed such limits. |
| 146 | */ |
| 147 | #define KVM_MEM_MAX_NR_PAGES ((1UL << 31) - 1) |
| 148 | |
Takuya Yoshikawa | d4dbf47 | 2010-12-07 12:59:07 +0900 | [diff] [blame] | 149 | struct kvm_lpage_info { |
| 150 | unsigned long rmap_pde; |
| 151 | int write_count; |
| 152 | }; |
| 153 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 154 | struct kvm_memory_slot { |
| 155 | gfn_t base_gfn; |
| 156 | unsigned long npages; |
| 157 | unsigned long flags; |
Izik Eidus | 290fc38 | 2007-09-27 14:11:22 +0200 | [diff] [blame] | 158 | unsigned long *rmap; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 159 | unsigned long *dirty_bitmap; |
Takuya Yoshikawa | 515a012 | 2010-10-27 18:23:54 +0900 | [diff] [blame] | 160 | unsigned long *dirty_bitmap_head; |
Takuya Yoshikawa | d4dbf47 | 2010-12-07 12:59:07 +0900 | [diff] [blame] | 161 | struct kvm_lpage_info *lpage_info[KVM_NR_PAGE_SIZES - 1]; |
Izik Eidus | 8a7ae05 | 2007-10-18 11:09:33 +0200 | [diff] [blame] | 162 | unsigned long userspace_addr; |
Izik Eidus | 80b14b5 | 2007-10-25 11:54:04 +0200 | [diff] [blame] | 163 | int user_alloc; |
Avi Kivity | e36d96f | 2010-06-21 10:56:36 +0300 | [diff] [blame] | 164 | int id; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 165 | }; |
| 166 | |
Takuya Yoshikawa | 87bf6e7 | 2010-04-12 19:35:35 +0900 | [diff] [blame] | 167 | static inline unsigned long kvm_dirty_bitmap_bytes(struct kvm_memory_slot *memslot) |
| 168 | { |
| 169 | return ALIGN(memslot->npages, BITS_PER_LONG) / 8; |
| 170 | } |
| 171 | |
Avi Kivity | 399ec80 | 2008-11-19 13:58:46 +0200 | [diff] [blame] | 172 | struct kvm_kernel_irq_routing_entry { |
| 173 | u32 gsi; |
Michael S. Tsirkin | 5116d8f | 2009-07-26 17:10:01 +0300 | [diff] [blame] | 174 | u32 type; |
Gleb Natapov | 4925663 | 2009-02-04 17:28:14 +0200 | [diff] [blame] | 175 | int (*set)(struct kvm_kernel_irq_routing_entry *e, |
Gleb Natapov | 1a6e4a8 | 2009-08-24 11:54:19 +0300 | [diff] [blame] | 176 | struct kvm *kvm, int irq_source_id, int level); |
Avi Kivity | 399ec80 | 2008-11-19 13:58:46 +0200 | [diff] [blame] | 177 | union { |
| 178 | struct { |
| 179 | unsigned irqchip; |
| 180 | unsigned pin; |
| 181 | } irqchip; |
Sheng Yang | 79950e1 | 2009-02-10 13:57:06 +0800 | [diff] [blame] | 182 | struct msi_msg msi; |
Avi Kivity | 399ec80 | 2008-11-19 13:58:46 +0200 | [diff] [blame] | 183 | }; |
Gleb Natapov | 46e624b | 2009-08-24 11:54:20 +0300 | [diff] [blame] | 184 | struct hlist_node link; |
| 185 | }; |
| 186 | |
Gleb Natapov | 3e71f88 | 2009-08-24 11:54:21 +0300 | [diff] [blame] | 187 | #ifdef __KVM_HAVE_IOAPIC |
| 188 | |
Gleb Natapov | 46e624b | 2009-08-24 11:54:20 +0300 | [diff] [blame] | 189 | struct kvm_irq_routing_table { |
Gleb Natapov | 3e71f88 | 2009-08-24 11:54:21 +0300 | [diff] [blame] | 190 | int chip[KVM_NR_IRQCHIPS][KVM_IOAPIC_NUM_PINS]; |
Gleb Natapov | 46e624b | 2009-08-24 11:54:20 +0300 | [diff] [blame] | 191 | struct kvm_kernel_irq_routing_entry *rt_entries; |
| 192 | u32 nr_rt_entries; |
| 193 | /* |
| 194 | * Array indexed by gsi. Each entry contains list of irq chips |
| 195 | * the gsi is connected to. |
| 196 | */ |
| 197 | struct hlist_head map[0]; |
Avi Kivity | 399ec80 | 2008-11-19 13:58:46 +0200 | [diff] [blame] | 198 | }; |
| 199 | |
Gleb Natapov | 3e71f88 | 2009-08-24 11:54:21 +0300 | [diff] [blame] | 200 | #else |
| 201 | |
| 202 | struct kvm_irq_routing_table {}; |
| 203 | |
| 204 | #endif |
| 205 | |
Marcelo Tosatti | 46a26bf | 2009-12-23 14:35:16 -0200 | [diff] [blame] | 206 | struct kvm_memslots { |
| 207 | int nmemslots; |
Gleb Natapov | 49c7754 | 2010-10-18 15:22:23 +0200 | [diff] [blame] | 208 | u64 generation; |
Marcelo Tosatti | 46a26bf | 2009-12-23 14:35:16 -0200 | [diff] [blame] | 209 | struct kvm_memory_slot memslots[KVM_MEMORY_SLOTS + |
| 210 | KVM_PRIVATE_MEM_SLOTS]; |
| 211 | }; |
| 212 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 213 | struct kvm { |
Marcelo Tosatti | aaee2c9 | 2007-12-20 19:18:26 -0500 | [diff] [blame] | 214 | spinlock_t mmu_lock; |
Avi Kivity | 70e335e | 2010-02-18 11:25:22 +0200 | [diff] [blame] | 215 | raw_spinlock_t requests_lock; |
Marcelo Tosatti | 79fac95 | 2009-12-23 14:35:26 -0200 | [diff] [blame] | 216 | struct mutex slots_lock; |
Avi Kivity | 6d4e4c4 | 2007-11-21 16:41:05 +0200 | [diff] [blame] | 217 | struct mm_struct *mm; /* userspace tied to this vm */ |
Marcelo Tosatti | 46a26bf | 2009-12-23 14:35:16 -0200 | [diff] [blame] | 218 | struct kvm_memslots *memslots; |
Marcelo Tosatti | bc6678a | 2009-12-23 14:35:21 -0200 | [diff] [blame] | 219 | struct srcu_struct srcu; |
Gleb Natapov | 73880c8 | 2009-06-09 15:56:28 +0300 | [diff] [blame] | 220 | #ifdef CONFIG_KVM_APIC_ARCHITECTURE |
| 221 | u32 bsp_vcpu_id; |
Gleb Natapov | c5af89b | 2009-06-09 15:56:26 +0300 | [diff] [blame] | 222 | struct kvm_vcpu *bsp_vcpu; |
Gleb Natapov | 73880c8 | 2009-06-09 15:56:28 +0300 | [diff] [blame] | 223 | #endif |
Rusty Russell | fb3f0f5 | 2007-07-27 17:16:56 +1000 | [diff] [blame] | 224 | struct kvm_vcpu *vcpus[KVM_MAX_VCPUS]; |
Gleb Natapov | 73880c8 | 2009-06-09 15:56:28 +0300 | [diff] [blame] | 225 | atomic_t online_vcpus; |
Avi Kivity | 133de90 | 2007-02-12 00:54:44 -0800 | [diff] [blame] | 226 | struct list_head vm_list; |
Marcelo Tosatti | 60eead7 | 2009-06-04 15:08:23 -0300 | [diff] [blame] | 227 | struct mutex lock; |
Marcelo Tosatti | e93f8a0 | 2009-12-23 14:35:24 -0200 | [diff] [blame] | 228 | struct kvm_io_bus *buses[KVM_NR_BUSES]; |
Gregory Haskins | 721eecb | 2009-05-20 10:30:49 -0400 | [diff] [blame] | 229 | #ifdef CONFIG_HAVE_KVM_EVENTFD |
| 230 | struct { |
| 231 | spinlock_t lock; |
| 232 | struct list_head items; |
| 233 | } irqfds; |
Gregory Haskins | d34e6b1 | 2009-07-07 17:08:49 -0400 | [diff] [blame] | 234 | struct list_head ioeventfds; |
Gregory Haskins | 721eecb | 2009-05-20 10:30:49 -0400 | [diff] [blame] | 235 | #endif |
Avi Kivity | ba1389b | 2007-11-18 16:24:12 +0200 | [diff] [blame] | 236 | struct kvm_vm_stat stat; |
Zhang Xiantao | d69fb81 | 2007-12-14 09:54:20 +0800 | [diff] [blame] | 237 | struct kvm_arch arch; |
Izik Eidus | d39f13b | 2008-03-30 16:01:25 +0300 | [diff] [blame] | 238 | atomic_t users_count; |
Laurent Vivier | 5f94c17 | 2008-05-30 16:05:54 +0200 | [diff] [blame] | 239 | #ifdef KVM_COALESCED_MMIO_PAGE_OFFSET |
| 240 | struct kvm_coalesced_mmio_dev *coalesced_mmio_dev; |
| 241 | struct kvm_coalesced_mmio_ring *coalesced_mmio_ring; |
| 242 | #endif |
Andrea Arcangeli | e930bff | 2008-07-25 16:24:52 +0200 | [diff] [blame] | 243 | |
Marcelo Tosatti | 60eead7 | 2009-06-04 15:08:23 -0300 | [diff] [blame] | 244 | struct mutex irq_lock; |
Avi Kivity | 75858a8 | 2009-01-04 17:10:50 +0200 | [diff] [blame] | 245 | #ifdef CONFIG_HAVE_KVM_IRQCHIP |
Michael S. Tsirkin | bd2b53b | 2010-11-18 19:09:08 +0200 | [diff] [blame] | 246 | /* |
| 247 | * Update side is protected by irq_lock and, |
| 248 | * if configured, irqfds.lock. |
| 249 | */ |
Arnd Bergmann | 4b6a287 | 2010-03-04 15:59:23 +0100 | [diff] [blame] | 250 | struct kvm_irq_routing_table __rcu *irq_routing; |
Avi Kivity | 75858a8 | 2009-01-04 17:10:50 +0200 | [diff] [blame] | 251 | struct hlist_head mask_notifier_list; |
Gleb Natapov | 136bdfe | 2009-08-24 11:54:23 +0300 | [diff] [blame] | 252 | struct hlist_head irq_ack_notifier_list; |
Avi Kivity | 75858a8 | 2009-01-04 17:10:50 +0200 | [diff] [blame] | 253 | #endif |
| 254 | |
Andrea Arcangeli | e930bff | 2008-07-25 16:24:52 +0200 | [diff] [blame] | 255 | #ifdef KVM_ARCH_WANT_MMU_NOTIFIER |
| 256 | struct mmu_notifier mmu_notifier; |
| 257 | unsigned long mmu_notifier_seq; |
| 258 | long mmu_notifier_count; |
| 259 | #endif |
Avi Kivity | 5c663a1 | 2010-12-08 18:04:51 +0200 | [diff] [blame] | 260 | long tlbs_dirty; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 261 | }; |
| 262 | |
Rusty Russell | f024247 | 2007-08-01 10:48:02 +1000 | [diff] [blame] | 263 | /* The guest did something we don't support. */ |
| 264 | #define pr_unimpl(vcpu, fmt, ...) \ |
| 265 | do { \ |
| 266 | if (printk_ratelimit()) \ |
| 267 | printk(KERN_ERR "kvm: %i: cpu%i " fmt, \ |
| 268 | current->tgid, (vcpu)->vcpu_id , ## __VA_ARGS__); \ |
Mike Day | d77c26f | 2007-10-08 09:02:08 -0400 | [diff] [blame] | 269 | } while (0) |
Rusty Russell | f024247 | 2007-08-01 10:48:02 +1000 | [diff] [blame] | 270 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 271 | #define kvm_printf(kvm, fmt ...) printk(KERN_DEBUG fmt) |
| 272 | #define vcpu_printf(vcpu, fmt...) kvm_printf(vcpu->kvm, fmt) |
| 273 | |
Gleb Natapov | 988a2ca | 2009-06-09 15:56:29 +0300 | [diff] [blame] | 274 | static inline struct kvm_vcpu *kvm_get_vcpu(struct kvm *kvm, int i) |
| 275 | { |
| 276 | smp_rmb(); |
| 277 | return kvm->vcpus[i]; |
| 278 | } |
| 279 | |
| 280 | #define kvm_for_each_vcpu(idx, vcpup, kvm) \ |
| 281 | for (idx = 0, vcpup = kvm_get_vcpu(kvm, idx); \ |
| 282 | idx < atomic_read(&kvm->online_vcpus) && vcpup; \ |
| 283 | vcpup = kvm_get_vcpu(kvm, ++idx)) |
| 284 | |
Rusty Russell | fb3f0f5 | 2007-07-27 17:16:56 +1000 | [diff] [blame] | 285 | int kvm_vcpu_init(struct kvm_vcpu *vcpu, struct kvm *kvm, unsigned id); |
| 286 | void kvm_vcpu_uninit(struct kvm_vcpu *vcpu); |
| 287 | |
Carsten Otte | 313a3dc | 2007-10-11 19:16:52 +0200 | [diff] [blame] | 288 | void vcpu_load(struct kvm_vcpu *vcpu); |
| 289 | void vcpu_put(struct kvm_vcpu *vcpu); |
| 290 | |
Avi Kivity | 0ee75be | 2010-04-28 15:39:01 +0300 | [diff] [blame] | 291 | int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align, |
Rusty Russell | c16f862 | 2007-07-30 21:12:19 +1000 | [diff] [blame] | 292 | struct module *module); |
Zhang Xiantao | cb498ea | 2007-11-14 20:39:31 +0800 | [diff] [blame] | 293 | void kvm_exit(void); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 294 | |
Izik Eidus | d39f13b | 2008-03-30 16:01:25 +0300 | [diff] [blame] | 295 | void kvm_get_kvm(struct kvm *kvm); |
| 296 | void kvm_put_kvm(struct kvm *kvm); |
| 297 | |
Lai Jiangshan | 90d83dc | 2010-04-19 17:41:23 +0800 | [diff] [blame] | 298 | static inline struct kvm_memslots *kvm_memslots(struct kvm *kvm) |
| 299 | { |
| 300 | return rcu_dereference_check(kvm->memslots, |
| 301 | srcu_read_lock_held(&kvm->srcu) |
| 302 | || lockdep_is_held(&kvm->slots_lock)); |
| 303 | } |
| 304 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 305 | #define HPA_MSB ((sizeof(hpa_t) * 8) - 1) |
| 306 | #define HPA_ERR_MASK ((hpa_t)1 << HPA_MSB) |
| 307 | static inline int is_error_hpa(hpa_t hpa) { return hpa >> HPA_MSB; } |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 308 | |
Izik Eidus | cea7bb2 | 2007-10-17 19:17:48 +0200 | [diff] [blame] | 309 | extern struct page *bad_page; |
Anthony Liguori | 35149e2 | 2008-04-02 14:46:56 -0500 | [diff] [blame] | 310 | extern pfn_t bad_pfn; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 311 | |
Izik Eidus | cea7bb2 | 2007-10-17 19:17:48 +0200 | [diff] [blame] | 312 | int is_error_page(struct page *page); |
Anthony Liguori | 35149e2 | 2008-04-02 14:46:56 -0500 | [diff] [blame] | 313 | int is_error_pfn(pfn_t pfn); |
Huang Ying | bf99815 | 2010-05-31 14:28:19 +0800 | [diff] [blame] | 314 | int is_hwpoison_pfn(pfn_t pfn); |
Gleb Natapov | edba23e | 2010-07-07 20:16:45 +0300 | [diff] [blame] | 315 | int is_fault_pfn(pfn_t pfn); |
Izik Eidus | f9d46eb | 2007-11-11 22:02:22 +0200 | [diff] [blame] | 316 | int kvm_is_error_hva(unsigned long addr); |
Izik Eidus | 210c7c4 | 2007-10-24 23:52:57 +0200 | [diff] [blame] | 317 | int kvm_set_memory_region(struct kvm *kvm, |
| 318 | struct kvm_userspace_memory_region *mem, |
| 319 | int user_alloc); |
Sheng Yang | f78e0e2 | 2007-10-29 09:40:42 +0800 | [diff] [blame] | 320 | int __kvm_set_memory_region(struct kvm *kvm, |
| 321 | struct kvm_userspace_memory_region *mem, |
| 322 | int user_alloc); |
Marcelo Tosatti | f7784b8 | 2009-12-23 14:35:18 -0200 | [diff] [blame] | 323 | int kvm_arch_prepare_memory_region(struct kvm *kvm, |
| 324 | struct kvm_memory_slot *memslot, |
| 325 | struct kvm_memory_slot old, |
| 326 | struct kvm_userspace_memory_region *mem, |
| 327 | int user_alloc); |
| 328 | void kvm_arch_commit_memory_region(struct kvm *kvm, |
Zhang Xiantao | 0de1034 | 2007-11-20 16:25:04 +0800 | [diff] [blame] | 329 | struct kvm_userspace_memory_region *mem, |
| 330 | struct kvm_memory_slot old, |
| 331 | int user_alloc); |
Marcelo Tosatti | 54dee99 | 2009-06-11 12:07:44 -0300 | [diff] [blame] | 332 | void kvm_disable_largepages(void); |
Marcelo Tosatti | 34d4cb8 | 2008-07-10 20:49:31 -0300 | [diff] [blame] | 333 | void kvm_arch_flush_shadow(struct kvm *kvm); |
Marcelo Tosatti | a983fb2 | 2009-12-23 14:35:23 -0200 | [diff] [blame] | 334 | |
Xiao Guangrong | 4898778 | 2010-08-22 19:11:43 +0800 | [diff] [blame] | 335 | int gfn_to_page_many_atomic(struct kvm *kvm, gfn_t gfn, struct page **pages, |
| 336 | int nr_pages); |
| 337 | |
Avi Kivity | 954bbbc | 2007-03-30 14:02:32 +0300 | [diff] [blame] | 338 | struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn); |
Marcelo Tosatti | 05da455 | 2008-02-23 11:44:30 -0300 | [diff] [blame] | 339 | unsigned long gfn_to_hva(struct kvm *kvm, gfn_t gfn); |
Izik Eidus | b4231d6 | 2007-11-20 11:49:33 +0200 | [diff] [blame] | 340 | void kvm_release_page_clean(struct page *page); |
| 341 | void kvm_release_page_dirty(struct page *page); |
Anthony Liguori | 35149e2 | 2008-04-02 14:46:56 -0500 | [diff] [blame] | 342 | void kvm_set_page_dirty(struct page *page); |
| 343 | void kvm_set_page_accessed(struct page *page); |
| 344 | |
Xiao Guangrong | 887c08a | 2010-08-22 19:10:28 +0800 | [diff] [blame] | 345 | pfn_t hva_to_pfn_atomic(struct kvm *kvm, unsigned long addr); |
Xiao Guangrong | 365fb3f | 2010-08-28 19:24:13 +0800 | [diff] [blame] | 346 | pfn_t gfn_to_pfn_atomic(struct kvm *kvm, gfn_t gfn); |
Marcelo Tosatti | 612819c | 2010-10-22 14:18:18 -0200 | [diff] [blame] | 347 | pfn_t gfn_to_pfn_async(struct kvm *kvm, gfn_t gfn, bool *async, |
| 348 | bool write_fault, bool *writable); |
Anthony Liguori | 35149e2 | 2008-04-02 14:46:56 -0500 | [diff] [blame] | 349 | pfn_t gfn_to_pfn(struct kvm *kvm, gfn_t gfn); |
Marcelo Tosatti | 612819c | 2010-10-22 14:18:18 -0200 | [diff] [blame] | 350 | pfn_t gfn_to_pfn_prot(struct kvm *kvm, gfn_t gfn, bool write_fault, |
| 351 | bool *writable); |
Marcelo Tosatti | 506f0d6 | 2009-12-23 14:35:19 -0200 | [diff] [blame] | 352 | pfn_t gfn_to_pfn_memslot(struct kvm *kvm, |
| 353 | struct kvm_memory_slot *slot, gfn_t gfn); |
Marcelo Tosatti | bc6678a | 2009-12-23 14:35:21 -0200 | [diff] [blame] | 354 | int memslot_id(struct kvm *kvm, gfn_t gfn); |
Anthony Liguori | 35149e2 | 2008-04-02 14:46:56 -0500 | [diff] [blame] | 355 | void kvm_release_pfn_dirty(pfn_t); |
| 356 | void kvm_release_pfn_clean(pfn_t pfn); |
| 357 | void kvm_set_pfn_dirty(pfn_t pfn); |
| 358 | void kvm_set_pfn_accessed(pfn_t pfn); |
| 359 | void kvm_get_pfn(pfn_t pfn); |
| 360 | |
Izik Eidus | 195aefd | 2007-10-01 22:14:18 +0200 | [diff] [blame] | 361 | int kvm_read_guest_page(struct kvm *kvm, gfn_t gfn, void *data, int offset, |
| 362 | int len); |
Marcelo Tosatti | 7ec5458 | 2007-12-20 19:18:23 -0500 | [diff] [blame] | 363 | int kvm_read_guest_atomic(struct kvm *kvm, gpa_t gpa, void *data, |
| 364 | unsigned long len); |
Izik Eidus | 195aefd | 2007-10-01 22:14:18 +0200 | [diff] [blame] | 365 | int kvm_read_guest(struct kvm *kvm, gpa_t gpa, void *data, unsigned long len); |
| 366 | int kvm_write_guest_page(struct kvm *kvm, gfn_t gfn, const void *data, |
| 367 | int offset, int len); |
| 368 | int kvm_write_guest(struct kvm *kvm, gpa_t gpa, const void *data, |
| 369 | unsigned long len); |
Gleb Natapov | 49c7754 | 2010-10-18 15:22:23 +0200 | [diff] [blame] | 370 | int kvm_write_guest_cached(struct kvm *kvm, struct gfn_to_hva_cache *ghc, |
| 371 | void *data, unsigned long len); |
| 372 | int kvm_gfn_to_hva_cache_init(struct kvm *kvm, struct gfn_to_hva_cache *ghc, |
| 373 | gpa_t gpa); |
Izik Eidus | 195aefd | 2007-10-01 22:14:18 +0200 | [diff] [blame] | 374 | int kvm_clear_guest_page(struct kvm *kvm, gfn_t gfn, int offset, int len); |
| 375 | int kvm_clear_guest(struct kvm *kvm, gpa_t gpa, unsigned long len); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 376 | struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn); |
Izik Eidus | e0d62c7 | 2007-10-24 23:57:46 +0200 | [diff] [blame] | 377 | int kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn); |
Joerg Roedel | 8f0b1ab | 2010-01-28 12:37:56 +0100 | [diff] [blame] | 378 | unsigned long kvm_host_page_size(struct kvm *kvm, gfn_t gfn); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 379 | void mark_page_dirty(struct kvm *kvm, gfn_t gfn); |
Gleb Natapov | 49c7754 | 2010-10-18 15:22:23 +0200 | [diff] [blame] | 380 | void mark_page_dirty_in_slot(struct kvm *kvm, struct kvm_memory_slot *memslot, |
| 381 | gfn_t gfn); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 382 | |
Hollis Blanchard | 8776e51 | 2007-10-31 17:24:24 -0500 | [diff] [blame] | 383 | void kvm_vcpu_block(struct kvm_vcpu *vcpu); |
Zhai, Edwin | d255f4f | 2009-10-09 18:03:20 +0800 | [diff] [blame] | 384 | void kvm_vcpu_on_spin(struct kvm_vcpu *vcpu); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 385 | void kvm_resched(struct kvm_vcpu *vcpu); |
Avi Kivity | 7702fd1 | 2007-06-14 16:27:40 +0300 | [diff] [blame] | 386 | void kvm_load_guest_fpu(struct kvm_vcpu *vcpu); |
| 387 | void kvm_put_guest_fpu(struct kvm_vcpu *vcpu); |
Xiao Guangrong | a4ee1ca | 2010-11-23 11:13:00 +0800 | [diff] [blame] | 388 | |
Avi Kivity | d9e368d | 2007-06-07 19:18:30 +0300 | [diff] [blame] | 389 | void kvm_flush_remote_tlbs(struct kvm *kvm); |
Marcelo Tosatti | 2e53d63 | 2008-02-20 14:47:24 -0500 | [diff] [blame] | 390 | void kvm_reload_remote_mmus(struct kvm *kvm); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 391 | |
Carsten Otte | 043405e | 2007-10-10 17:16:19 +0200 | [diff] [blame] | 392 | long kvm_arch_dev_ioctl(struct file *filp, |
| 393 | unsigned int ioctl, unsigned long arg); |
Carsten Otte | 313a3dc | 2007-10-11 19:16:52 +0200 | [diff] [blame] | 394 | long kvm_arch_vcpu_ioctl(struct file *filp, |
| 395 | unsigned int ioctl, unsigned long arg); |
Zhang Xiantao | 018d00d | 2007-11-15 23:07:47 +0800 | [diff] [blame] | 396 | |
| 397 | int kvm_dev_ioctl_check_extension(long ext); |
| 398 | |
Zhang Xiantao | 5bb064d | 2007-11-18 20:29:43 +0800 | [diff] [blame] | 399 | int kvm_get_dirty_log(struct kvm *kvm, |
| 400 | struct kvm_dirty_log *log, int *is_dirty); |
| 401 | int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, |
| 402 | struct kvm_dirty_log *log); |
| 403 | |
Carsten Otte | 1fe779f | 2007-10-29 16:08:35 +0100 | [diff] [blame] | 404 | int kvm_vm_ioctl_set_memory_region(struct kvm *kvm, |
| 405 | struct |
| 406 | kvm_userspace_memory_region *mem, |
| 407 | int user_alloc); |
| 408 | long kvm_arch_vm_ioctl(struct file *filp, |
| 409 | unsigned int ioctl, unsigned long arg); |
Carsten Otte | 313a3dc | 2007-10-11 19:16:52 +0200 | [diff] [blame] | 410 | |
Hollis Blanchard | d075206 | 2007-10-31 17:24:25 -0500 | [diff] [blame] | 411 | int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu); |
| 412 | int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu); |
| 413 | |
Zhang Xiantao | 8b00679 | 2007-11-16 13:05:55 +0800 | [diff] [blame] | 414 | int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu, |
| 415 | struct kvm_translation *tr); |
| 416 | |
Hollis Blanchard | b6c7a5d | 2007-11-01 14:16:10 -0500 | [diff] [blame] | 417 | int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs); |
| 418 | int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs); |
| 419 | int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu, |
| 420 | struct kvm_sregs *sregs); |
| 421 | int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu, |
| 422 | struct kvm_sregs *sregs); |
Marcelo Tosatti | 62d9f0d | 2008-04-11 13:24:45 -0300 | [diff] [blame] | 423 | int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu, |
| 424 | struct kvm_mp_state *mp_state); |
| 425 | int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, |
| 426 | struct kvm_mp_state *mp_state); |
Jan Kiszka | d0bfb94 | 2008-12-15 13:52:10 +0100 | [diff] [blame] | 427 | int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu, |
| 428 | struct kvm_guest_debug *dbg); |
Hollis Blanchard | b6c7a5d | 2007-11-01 14:16:10 -0500 | [diff] [blame] | 429 | int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run); |
| 430 | |
Zhang Xiantao | f8c16bb | 2007-11-14 20:40:21 +0800 | [diff] [blame] | 431 | int kvm_arch_init(void *opaque); |
| 432 | void kvm_arch_exit(void); |
Carsten Otte | 043405e | 2007-10-10 17:16:19 +0200 | [diff] [blame] | 433 | |
Zhang Xiantao | e9b11c1 | 2007-11-14 20:38:21 +0800 | [diff] [blame] | 434 | int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu); |
| 435 | void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu); |
| 436 | |
| 437 | void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu); |
| 438 | void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu); |
| 439 | void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu); |
| 440 | struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id); |
Avi Kivity | 26e5215 | 2007-11-20 15:30:24 +0200 | [diff] [blame] | 441 | int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu); |
Hollis Blanchard | d40ccc6 | 2007-11-19 14:04:43 -0600 | [diff] [blame] | 442 | void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu); |
Zhang Xiantao | e9b11c1 | 2007-11-14 20:38:21 +0800 | [diff] [blame] | 443 | |
| 444 | int kvm_arch_vcpu_reset(struct kvm_vcpu *vcpu); |
Alexander Graf | 10474ae | 2009-09-15 11:37:46 +0200 | [diff] [blame] | 445 | int kvm_arch_hardware_enable(void *garbage); |
Zhang Xiantao | e9b11c1 | 2007-11-14 20:38:21 +0800 | [diff] [blame] | 446 | void kvm_arch_hardware_disable(void *garbage); |
| 447 | int kvm_arch_hardware_setup(void); |
| 448 | void kvm_arch_hardware_unsetup(void); |
| 449 | void kvm_arch_check_processor_compat(void *rtn); |
Zhang Xiantao | 1d737c8 | 2007-12-14 09:35:10 +0800 | [diff] [blame] | 450 | int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu); |
Zhang Xiantao | e9b11c1 | 2007-11-14 20:38:21 +0800 | [diff] [blame] | 451 | |
Zhang Xiantao | d19a9cd | 2007-11-18 18:43:45 +0800 | [diff] [blame] | 452 | void kvm_free_physmem(struct kvm *kvm); |
| 453 | |
Jan Kiszka | d89f5ef | 2010-11-09 17:02:49 +0100 | [diff] [blame] | 454 | #ifndef __KVM_HAVE_ARCH_VM_ALLOC |
| 455 | static inline struct kvm *kvm_arch_alloc_vm(void) |
| 456 | { |
| 457 | return kzalloc(sizeof(struct kvm), GFP_KERNEL); |
| 458 | } |
| 459 | |
| 460 | static inline void kvm_arch_free_vm(struct kvm *kvm) |
| 461 | { |
| 462 | kfree(kvm); |
| 463 | } |
| 464 | #endif |
| 465 | |
| 466 | int kvm_arch_init_vm(struct kvm *kvm); |
Zhang Xiantao | d19a9cd | 2007-11-18 18:43:45 +0800 | [diff] [blame] | 467 | void kvm_arch_destroy_vm(struct kvm *kvm); |
Xiantao Zhang | 8a98f66 | 2008-10-06 13:47:38 +0800 | [diff] [blame] | 468 | void kvm_free_all_assigned_devices(struct kvm *kvm); |
Sheng Yang | ad8ba2c | 2009-01-06 10:03:02 +0800 | [diff] [blame] | 469 | void kvm_arch_sync_events(struct kvm *kvm); |
Zhang Xiantao | e9b11c1 | 2007-11-14 20:38:21 +0800 | [diff] [blame] | 470 | |
Marcelo Tosatti | 3d80840 | 2008-04-11 14:53:26 -0300 | [diff] [blame] | 471 | int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu); |
Zhang Xiantao | 5736199 | 2007-12-17 14:21:40 +0800 | [diff] [blame] | 472 | void kvm_vcpu_kick(struct kvm_vcpu *vcpu); |
Zhang Xiantao | 682c59a | 2007-12-11 20:36:00 +0800 | [diff] [blame] | 473 | |
Xiantao Zhang | c77fb9d | 2008-09-27 10:55:40 +0800 | [diff] [blame] | 474 | int kvm_is_mmio_pfn(pfn_t pfn); |
| 475 | |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 476 | struct kvm_irq_ack_notifier { |
| 477 | struct hlist_node link; |
| 478 | unsigned gsi; |
| 479 | void (*irq_acked)(struct kvm_irq_ack_notifier *kian); |
| 480 | }; |
| 481 | |
| 482 | struct kvm_assigned_dev_kernel { |
| 483 | struct kvm_irq_ack_notifier ack_notifier; |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 484 | struct list_head list; |
| 485 | int assigned_dev_id; |
Zhai, Edwin | ab9f4ec | 2010-01-29 14:38:44 +0800 | [diff] [blame] | 486 | int host_segnr; |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 487 | int host_busnr; |
| 488 | int host_devfn; |
Sheng Yang | c1e0151 | 2009-02-25 17:22:26 +0800 | [diff] [blame] | 489 | unsigned int entries_nr; |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 490 | int host_irq; |
Mark McLoughlin | defaf15 | 2008-12-02 12:16:33 +0000 | [diff] [blame] | 491 | bool host_irq_disabled; |
Sheng Yang | c1e0151 | 2009-02-25 17:22:26 +0800 | [diff] [blame] | 492 | struct msix_entry *host_msix_entries; |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 493 | int guest_irq; |
Jan Kiszka | 0645211 | 2010-11-16 22:30:03 +0100 | [diff] [blame] | 494 | struct msix_entry *guest_msix_entries; |
Sheng Yang | 4f906c1 | 2008-11-24 14:32:51 +0800 | [diff] [blame] | 495 | unsigned long irq_requested_type; |
Sheng Yang | 5550af4 | 2008-10-15 20:15:06 +0800 | [diff] [blame] | 496 | int irq_source_id; |
Weidong Han | b653574 | 2008-12-08 23:29:53 +0800 | [diff] [blame] | 497 | int flags; |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 498 | struct pci_dev *dev; |
| 499 | struct kvm *kvm; |
Jan Kiszka | 0645211 | 2010-11-16 22:30:03 +0100 | [diff] [blame] | 500 | spinlock_t intx_lock; |
Jan Kiszka | 1e001d4 | 2010-11-16 22:30:04 +0100 | [diff] [blame] | 501 | char irq_name[32]; |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 502 | }; |
Avi Kivity | 75858a8 | 2009-01-04 17:10:50 +0200 | [diff] [blame] | 503 | |
| 504 | struct kvm_irq_mask_notifier { |
| 505 | void (*func)(struct kvm_irq_mask_notifier *kimn, bool masked); |
| 506 | int irq; |
| 507 | struct hlist_node link; |
| 508 | }; |
| 509 | |
| 510 | void kvm_register_irq_mask_notifier(struct kvm *kvm, int irq, |
| 511 | struct kvm_irq_mask_notifier *kimn); |
| 512 | void kvm_unregister_irq_mask_notifier(struct kvm *kvm, int irq, |
| 513 | struct kvm_irq_mask_notifier *kimn); |
Gleb Natapov | 4a99435 | 2010-07-11 15:32:23 +0300 | [diff] [blame] | 514 | void kvm_fire_mask_notifiers(struct kvm *kvm, unsigned irqchip, unsigned pin, |
| 515 | bool mask); |
Avi Kivity | 75858a8 | 2009-01-04 17:10:50 +0200 | [diff] [blame] | 516 | |
Gleb Natapov | 46e624b | 2009-08-24 11:54:20 +0300 | [diff] [blame] | 517 | #ifdef __KVM_HAVE_IOAPIC |
| 518 | void kvm_get_intr_delivery_bitmask(struct kvm_ioapic *ioapic, |
| 519 | union kvm_ioapic_redirect_entry *entry, |
| 520 | unsigned long *deliver_bitmask); |
| 521 | #endif |
| 522 | int kvm_set_irq(struct kvm *kvm, int irq_source_id, u32 irq, int level); |
Michael S. Tsirkin | bd2b53b | 2010-11-18 19:09:08 +0200 | [diff] [blame] | 523 | int kvm_set_msi(struct kvm_kernel_irq_routing_entry *irq_entry, struct kvm *kvm, |
| 524 | int irq_source_id, int level); |
Marcelo Tosatti | 44882ee | 2009-01-27 15:12:38 -0200 | [diff] [blame] | 525 | void kvm_notify_acked_irq(struct kvm *kvm, unsigned irqchip, unsigned pin); |
Xiantao Zhang | 3de42dc | 2008-10-06 13:48:45 +0800 | [diff] [blame] | 526 | void kvm_register_irq_ack_notifier(struct kvm *kvm, |
| 527 | struct kvm_irq_ack_notifier *kian); |
Marcelo Tosatti | fa40a82 | 2009-06-04 15:08:24 -0300 | [diff] [blame] | 528 | void kvm_unregister_irq_ack_notifier(struct kvm *kvm, |
| 529 | struct kvm_irq_ack_notifier *kian); |
Sheng Yang | 5550af4 | 2008-10-15 20:15:06 +0800 | [diff] [blame] | 530 | int kvm_request_irq_source_id(struct kvm *kvm); |
| 531 | void kvm_free_irq_source_id(struct kvm *kvm, int irq_source_id); |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 532 | |
Sheng Yang | 522c68c | 2009-04-27 20:35:43 +0800 | [diff] [blame] | 533 | /* For vcpu->arch.iommu_flags */ |
| 534 | #define KVM_IOMMU_CACHE_COHERENCY 0x1 |
| 535 | |
Joerg Roedel | 19de40a | 2008-12-03 14:43:34 +0100 | [diff] [blame] | 536 | #ifdef CONFIG_IOMMU_API |
Marcelo Tosatti | 3ad26d8 | 2009-12-23 14:35:20 -0200 | [diff] [blame] | 537 | int kvm_iommu_map_pages(struct kvm *kvm, struct kvm_memory_slot *slot); |
Weidong Han | 260782b | 2008-12-02 21:03:39 +0800 | [diff] [blame] | 538 | int kvm_iommu_map_guest(struct kvm *kvm); |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 539 | int kvm_iommu_unmap_guest(struct kvm *kvm); |
Weidong Han | 260782b | 2008-12-02 21:03:39 +0800 | [diff] [blame] | 540 | int kvm_assign_device(struct kvm *kvm, |
| 541 | struct kvm_assigned_dev_kernel *assigned_dev); |
Weidong Han | 0a92035 | 2008-12-02 21:24:23 +0800 | [diff] [blame] | 542 | int kvm_deassign_device(struct kvm *kvm, |
| 543 | struct kvm_assigned_dev_kernel *assigned_dev); |
Joerg Roedel | 19de40a | 2008-12-03 14:43:34 +0100 | [diff] [blame] | 544 | #else /* CONFIG_IOMMU_API */ |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 545 | static inline int kvm_iommu_map_pages(struct kvm *kvm, |
Jan Kiszka | d7a79b6 | 2010-10-14 13:59:04 +0200 | [diff] [blame] | 546 | struct kvm_memory_slot *slot) |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 547 | { |
| 548 | return 0; |
| 549 | } |
| 550 | |
Weidong Han | 260782b | 2008-12-02 21:03:39 +0800 | [diff] [blame] | 551 | static inline int kvm_iommu_map_guest(struct kvm *kvm) |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 552 | { |
| 553 | return -ENODEV; |
| 554 | } |
| 555 | |
| 556 | static inline int kvm_iommu_unmap_guest(struct kvm *kvm) |
| 557 | { |
| 558 | return 0; |
| 559 | } |
Weidong Han | 260782b | 2008-12-02 21:03:39 +0800 | [diff] [blame] | 560 | |
| 561 | static inline int kvm_assign_device(struct kvm *kvm, |
| 562 | struct kvm_assigned_dev_kernel *assigned_dev) |
| 563 | { |
| 564 | return 0; |
| 565 | } |
Weidong Han | 0a92035 | 2008-12-02 21:24:23 +0800 | [diff] [blame] | 566 | |
| 567 | static inline int kvm_deassign_device(struct kvm *kvm, |
| 568 | struct kvm_assigned_dev_kernel *assigned_dev) |
| 569 | { |
| 570 | return 0; |
| 571 | } |
Joerg Roedel | 19de40a | 2008-12-03 14:43:34 +0100 | [diff] [blame] | 572 | #endif /* CONFIG_IOMMU_API */ |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 573 | |
Laurent Vivier | d172fcd | 2007-10-15 17:00:19 +0200 | [diff] [blame] | 574 | static inline void kvm_guest_enter(void) |
| 575 | { |
Christian Borntraeger | e56a7a2 | 2007-10-18 14:39:10 +0200 | [diff] [blame] | 576 | account_system_vtime(current); |
Laurent Vivier | d172fcd | 2007-10-15 17:00:19 +0200 | [diff] [blame] | 577 | current->flags |= PF_VCPU; |
| 578 | } |
| 579 | |
| 580 | static inline void kvm_guest_exit(void) |
| 581 | { |
Christian Borntraeger | e56a7a2 | 2007-10-18 14:39:10 +0200 | [diff] [blame] | 582 | account_system_vtime(current); |
Laurent Vivier | d172fcd | 2007-10-15 17:00:19 +0200 | [diff] [blame] | 583 | current->flags &= ~PF_VCPU; |
| 584 | } |
| 585 | |
Xiao Guangrong | 887c08a | 2010-08-22 19:10:28 +0800 | [diff] [blame] | 586 | static inline unsigned long gfn_to_hva_memslot(struct kvm_memory_slot *slot, |
| 587 | gfn_t gfn) |
| 588 | { |
| 589 | return slot->userspace_addr + (gfn - slot->base_gfn) * PAGE_SIZE; |
| 590 | } |
| 591 | |
Avi Kivity | 1755fbc | 2007-11-21 14:44:45 +0200 | [diff] [blame] | 592 | static inline gpa_t gfn_to_gpa(gfn_t gfn) |
| 593 | { |
| 594 | return (gpa_t)gfn << PAGE_SHIFT; |
| 595 | } |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 596 | |
Joerg Roedel | c30a358 | 2010-09-10 17:30:48 +0200 | [diff] [blame] | 597 | static inline gfn_t gpa_to_gfn(gpa_t gpa) |
| 598 | { |
| 599 | return (gfn_t)(gpa >> PAGE_SHIFT); |
| 600 | } |
| 601 | |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 602 | static inline hpa_t pfn_to_hpa(pfn_t pfn) |
| 603 | { |
| 604 | return (hpa_t)pfn << PAGE_SHIFT; |
| 605 | } |
| 606 | |
Marcelo Tosatti | 2f59971 | 2008-05-27 12:10:20 -0300 | [diff] [blame] | 607 | static inline void kvm_migrate_timers(struct kvm_vcpu *vcpu) |
Avi Kivity | 2f52d58 | 2008-01-16 12:49:30 +0200 | [diff] [blame] | 608 | { |
| 609 | set_bit(KVM_REQ_MIGRATE_TIMER, &vcpu->requests); |
| 610 | } |
| 611 | |
Avi Kivity | ba1389b | 2007-11-18 16:24:12 +0200 | [diff] [blame] | 612 | enum kvm_stat_kind { |
| 613 | KVM_STAT_VM, |
| 614 | KVM_STAT_VCPU, |
| 615 | }; |
| 616 | |
Hollis Blanchard | 417bc30 | 2007-10-31 17:24:23 -0500 | [diff] [blame] | 617 | struct kvm_stats_debugfs_item { |
| 618 | const char *name; |
| 619 | int offset; |
Avi Kivity | ba1389b | 2007-11-18 16:24:12 +0200 | [diff] [blame] | 620 | enum kvm_stat_kind kind; |
Hollis Blanchard | 417bc30 | 2007-10-31 17:24:23 -0500 | [diff] [blame] | 621 | struct dentry *dentry; |
| 622 | }; |
| 623 | extern struct kvm_stats_debugfs_item debugfs_entries[]; |
Hollis Blanchard | 76f7c87 | 2008-04-15 16:05:42 -0500 | [diff] [blame] | 624 | extern struct dentry *kvm_debugfs_dir; |
Feng(Eric) Liu | d4c9ff2 | 2008-04-10 08:47:53 -0400 | [diff] [blame] | 625 | |
Andrea Arcangeli | e930bff | 2008-07-25 16:24:52 +0200 | [diff] [blame] | 626 | #ifdef KVM_ARCH_WANT_MMU_NOTIFIER |
| 627 | static inline int mmu_notifier_retry(struct kvm_vcpu *vcpu, unsigned long mmu_seq) |
| 628 | { |
| 629 | if (unlikely(vcpu->kvm->mmu_notifier_count)) |
| 630 | return 1; |
| 631 | /* |
| 632 | * Both reads happen under the mmu_lock and both values are |
| 633 | * modified under mmu_lock, so there's no need of smb_rmb() |
| 634 | * here in between, otherwise mmu_notifier_count should be |
| 635 | * read before mmu_notifier_seq, see |
| 636 | * mmu_notifier_invalidate_range_end write side. |
| 637 | */ |
| 638 | if (vcpu->kvm->mmu_notifier_seq != mmu_seq) |
| 639 | return 1; |
| 640 | return 0; |
| 641 | } |
| 642 | #endif |
| 643 | |
Avi Kivity | 399ec80 | 2008-11-19 13:58:46 +0200 | [diff] [blame] | 644 | #ifdef CONFIG_HAVE_KVM_IRQCHIP |
| 645 | |
| 646 | #define KVM_MAX_IRQ_ROUTES 1024 |
| 647 | |
| 648 | int kvm_setup_default_irq_routing(struct kvm *kvm); |
| 649 | int kvm_set_irq_routing(struct kvm *kvm, |
| 650 | const struct kvm_irq_routing_entry *entries, |
| 651 | unsigned nr, |
| 652 | unsigned flags); |
| 653 | void kvm_free_irq_routing(struct kvm *kvm); |
| 654 | |
| 655 | #else |
| 656 | |
| 657 | static inline void kvm_free_irq_routing(struct kvm *kvm) {} |
| 658 | |
| 659 | #endif |
| 660 | |
Gregory Haskins | 721eecb | 2009-05-20 10:30:49 -0400 | [diff] [blame] | 661 | #ifdef CONFIG_HAVE_KVM_EVENTFD |
| 662 | |
Gregory Haskins | d34e6b1 | 2009-07-07 17:08:49 -0400 | [diff] [blame] | 663 | void kvm_eventfd_init(struct kvm *kvm); |
Gregory Haskins | 721eecb | 2009-05-20 10:30:49 -0400 | [diff] [blame] | 664 | int kvm_irqfd(struct kvm *kvm, int fd, int gsi, int flags); |
| 665 | void kvm_irqfd_release(struct kvm *kvm); |
Michael S. Tsirkin | bd2b53b | 2010-11-18 19:09:08 +0200 | [diff] [blame] | 666 | void kvm_irq_routing_update(struct kvm *, struct kvm_irq_routing_table *); |
Gregory Haskins | d34e6b1 | 2009-07-07 17:08:49 -0400 | [diff] [blame] | 667 | int kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args); |
Gregory Haskins | 721eecb | 2009-05-20 10:30:49 -0400 | [diff] [blame] | 668 | |
| 669 | #else |
| 670 | |
Gregory Haskins | d34e6b1 | 2009-07-07 17:08:49 -0400 | [diff] [blame] | 671 | static inline void kvm_eventfd_init(struct kvm *kvm) {} |
Michael S. Tsirkin | bd2b53b | 2010-11-18 19:09:08 +0200 | [diff] [blame] | 672 | |
Gregory Haskins | 721eecb | 2009-05-20 10:30:49 -0400 | [diff] [blame] | 673 | static inline int kvm_irqfd(struct kvm *kvm, int fd, int gsi, int flags) |
| 674 | { |
| 675 | return -EINVAL; |
| 676 | } |
| 677 | |
| 678 | static inline void kvm_irqfd_release(struct kvm *kvm) {} |
Michael S. Tsirkin | bd2b53b | 2010-11-18 19:09:08 +0200 | [diff] [blame] | 679 | |
Alexander Graf | 27923eb | 2010-11-25 10:25:44 +0100 | [diff] [blame] | 680 | #ifdef CONFIG_HAVE_KVM_IRQCHIP |
Michael S. Tsirkin | bd2b53b | 2010-11-18 19:09:08 +0200 | [diff] [blame] | 681 | static inline void kvm_irq_routing_update(struct kvm *kvm, |
| 682 | struct kvm_irq_routing_table *irq_rt) |
| 683 | { |
| 684 | rcu_assign_pointer(kvm->irq_routing, irq_rt); |
| 685 | } |
Alexander Graf | 27923eb | 2010-11-25 10:25:44 +0100 | [diff] [blame] | 686 | #endif |
Michael S. Tsirkin | bd2b53b | 2010-11-18 19:09:08 +0200 | [diff] [blame] | 687 | |
Gregory Haskins | d34e6b1 | 2009-07-07 17:08:49 -0400 | [diff] [blame] | 688 | static inline int kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args) |
| 689 | { |
| 690 | return -ENOSYS; |
| 691 | } |
Gregory Haskins | 721eecb | 2009-05-20 10:30:49 -0400 | [diff] [blame] | 692 | |
| 693 | #endif /* CONFIG_HAVE_KVM_EVENTFD */ |
| 694 | |
Gleb Natapov | 73880c8 | 2009-06-09 15:56:28 +0300 | [diff] [blame] | 695 | #ifdef CONFIG_KVM_APIC_ARCHITECTURE |
Gleb Natapov | c5af89b | 2009-06-09 15:56:26 +0300 | [diff] [blame] | 696 | static inline bool kvm_vcpu_is_bsp(struct kvm_vcpu *vcpu) |
| 697 | { |
Marcelo Tosatti | d3efc8e | 2009-06-17 10:07:59 -0300 | [diff] [blame] | 698 | return vcpu->kvm->bsp_vcpu_id == vcpu->vcpu_id; |
Gleb Natapov | c5af89b | 2009-06-09 15:56:26 +0300 | [diff] [blame] | 699 | } |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 700 | #endif |
Avi Kivity | bfd99ff | 2009-08-26 14:57:50 +0300 | [diff] [blame] | 701 | |
| 702 | #ifdef __KVM_HAVE_DEVICE_ASSIGNMENT |
| 703 | |
| 704 | long kvm_vm_ioctl_assigned_device(struct kvm *kvm, unsigned ioctl, |
| 705 | unsigned long arg); |
| 706 | |
| 707 | #else |
| 708 | |
| 709 | static inline long kvm_vm_ioctl_assigned_device(struct kvm *kvm, unsigned ioctl, |
| 710 | unsigned long arg) |
| 711 | { |
| 712 | return -ENOTTY; |
| 713 | } |
| 714 | |
Gleb Natapov | 73880c8 | 2009-06-09 15:56:28 +0300 | [diff] [blame] | 715 | #endif |
Avi Kivity | bfd99ff | 2009-08-26 14:57:50 +0300 | [diff] [blame] | 716 | |
Avi Kivity | a8eeb04 | 2010-05-10 12:34:53 +0300 | [diff] [blame] | 717 | static inline void kvm_make_request(int req, struct kvm_vcpu *vcpu) |
| 718 | { |
| 719 | set_bit(req, &vcpu->requests); |
| 720 | } |
| 721 | |
| 722 | static inline bool kvm_make_check_request(int req, struct kvm_vcpu *vcpu) |
| 723 | { |
| 724 | return test_and_set_bit(req, &vcpu->requests); |
| 725 | } |
| 726 | |
| 727 | static inline bool kvm_check_request(int req, struct kvm_vcpu *vcpu) |
| 728 | { |
Avi Kivity | 0719837 | 2010-05-10 13:08:26 +0300 | [diff] [blame] | 729 | if (test_bit(req, &vcpu->requests)) { |
| 730 | clear_bit(req, &vcpu->requests); |
| 731 | return true; |
| 732 | } else { |
| 733 | return false; |
| 734 | } |
Avi Kivity | a8eeb04 | 2010-05-10 12:34:53 +0300 | [diff] [blame] | 735 | } |
| 736 | |
Avi Kivity | bfd99ff | 2009-08-26 14:57:50 +0300 | [diff] [blame] | 737 | #endif |
| 738 | |