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> |
Paul Gortmaker | 187f188 | 2011-11-23 20:12:59 -0500 | [diff] [blame] | 16 | #include <linux/bug.h> |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 17 | #include <linux/mm.h> |
Eric B Munson | b297e67 | 2011-10-10 11:46:15 -0400 | [diff] [blame] | 18 | #include <linux/mmu_notifier.h> |
Avi Kivity | 15ad714 | 2007-07-11 18:17:21 +0300 | [diff] [blame] | 19 | #include <linux/preempt.h> |
Sheng Yang | 0937c48 | 2008-11-24 14:32:53 +0800 | [diff] [blame] | 20 | #include <linux/msi.h> |
Jan Kiszka | d89f5ef | 2010-11-09 17:02:49 +0100 | [diff] [blame] | 21 | #include <linux/slab.h> |
Michael S. Tsirkin | bd2b53b | 2010-11-18 19:09:08 +0200 | [diff] [blame] | 22 | #include <linux/rcupdate.h> |
Jan Kiszka | bd80158 | 2011-09-12 11:26:22 +0200 | [diff] [blame] | 23 | #include <linux/ratelimit.h> |
Alexey Dobriyan | e8edc6e | 2007-05-21 01:22:52 +0400 | [diff] [blame] | 24 | #include <asm/signal.h> |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 25 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 26 | #include <linux/kvm.h> |
Ingo Molnar | 102d832 | 2007-02-19 14:37:47 +0200 | [diff] [blame] | 27 | #include <linux/kvm_para.h> |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 28 | |
Avi Kivity | edf8841 | 2007-12-16 11:02:48 +0200 | [diff] [blame] | 29 | #include <linux/kvm_types.h> |
Hollis Blanchard | d77a39d | 2007-12-03 15:30:23 -0600 | [diff] [blame] | 30 | |
Avi Kivity | edf8841 | 2007-12-16 11:02:48 +0200 | [diff] [blame] | 31 | #include <asm/kvm_host.h> |
Zhang Xiantao | d657a98 | 2007-12-14 09:41:22 +0800 | [diff] [blame] | 32 | |
Avi Kivity | cef4dea | 2010-01-20 12:01:20 +0200 | [diff] [blame] | 33 | #ifndef KVM_MMIO_SIZE |
| 34 | #define KVM_MMIO_SIZE 8 |
| 35 | #endif |
| 36 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 37 | /* |
Avi Kivity | d9e368d | 2007-06-07 19:18:30 +0300 | [diff] [blame] | 38 | * vcpu->requests bit members |
| 39 | */ |
Avi Kivity | 3176bc3 | 2007-10-16 17:22:08 +0200 | [diff] [blame] | 40 | #define KVM_REQ_TLB_FLUSH 0 |
Avi Kivity | 2f52d58 | 2008-01-16 12:49:30 +0200 | [diff] [blame] | 41 | #define KVM_REQ_MIGRATE_TIMER 1 |
Avi Kivity | b209749f | 2007-10-22 16:50:39 +0200 | [diff] [blame] | 42 | #define KVM_REQ_REPORT_TPR_ACCESS 2 |
Marcelo Tosatti | 2e53d63 | 2008-02-20 14:47:24 -0500 | [diff] [blame] | 43 | #define KVM_REQ_MMU_RELOAD 3 |
Joerg Roedel | 71c4dfa | 2008-02-26 16:49:16 +0100 | [diff] [blame] | 44 | #define KVM_REQ_TRIPLE_FAULT 4 |
Marcelo Tosatti | 06e0564 | 2008-06-06 16:37:36 -0300 | [diff] [blame] | 45 | #define KVM_REQ_PENDING_TIMER 5 |
Marcelo Tosatti | d769017 | 2008-09-08 15:23:48 -0300 | [diff] [blame] | 46 | #define KVM_REQ_UNHALT 6 |
Marcelo Tosatti | 4731d4c | 2008-09-23 13:18:39 -0300 | [diff] [blame] | 47 | #define KVM_REQ_MMU_SYNC 7 |
Zachary Amsden | 34c238a | 2010-09-18 14:38:14 -1000 | [diff] [blame] | 48 | #define KVM_REQ_CLOCK_UPDATE 8 |
Marcelo Tosatti | 32f8840 | 2009-05-07 17:55:12 -0300 | [diff] [blame] | 49 | #define KVM_REQ_KICK 9 |
Avi Kivity | 02daab2 | 2009-12-30 12:40:26 +0200 | [diff] [blame] | 50 | #define KVM_REQ_DEACTIVATE_FPU 10 |
Avi Kivity | 3842d13 | 2010-07-27 12:30:24 +0300 | [diff] [blame] | 51 | #define KVM_REQ_EVENT 11 |
Gleb Natapov | af585b9 | 2010-10-14 11:22:46 +0200 | [diff] [blame] | 52 | #define KVM_REQ_APF_HALT 12 |
Glauber Costa | c9aaa89 | 2011-07-11 15:28:14 -0400 | [diff] [blame] | 53 | #define KVM_REQ_STEAL_UPDATE 13 |
Avi Kivity | 7460fb4a | 2011-09-20 13:43:14 +0300 | [diff] [blame] | 54 | #define KVM_REQ_NMI 14 |
Nadav Har'El | d6185f2 | 2011-09-22 13:52:56 +0300 | [diff] [blame] | 55 | #define KVM_REQ_IMMEDIATE_EXIT 15 |
Gleb Natapov | f5132b0 | 2011-11-10 14:57:22 +0200 | [diff] [blame] | 56 | #define KVM_REQ_PMU 16 |
| 57 | #define KVM_REQ_PMI 17 |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 58 | |
Sheng Yang | 5550af4 | 2008-10-15 20:15:06 +0800 | [diff] [blame] | 59 | #define KVM_USERSPACE_IRQ_SOURCE_ID 0 |
| 60 | |
Michael S. Tsirkin | 6c47469 | 2009-06-29 22:24:26 +0300 | [diff] [blame] | 61 | struct kvm; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 62 | struct kvm_vcpu; |
Rusty Russell | c16f862 | 2007-07-30 21:12:19 +1000 | [diff] [blame] | 63 | extern struct kmem_cache *kvm_vcpu_cache; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 64 | |
Sasha Levin | 743eeb0 | 2011-07-27 16:00:48 +0300 | [diff] [blame] | 65 | struct kvm_io_range { |
| 66 | gpa_t addr; |
| 67 | int len; |
| 68 | struct kvm_io_device *dev; |
| 69 | }; |
| 70 | |
Gregory Haskins | 2eeb2e9 | 2007-05-31 14:08:53 -0400 | [diff] [blame] | 71 | struct kvm_io_bus { |
| 72 | int dev_count; |
Sasha Levin | 2b3c246 | 2011-07-20 20:59:00 +0300 | [diff] [blame] | 73 | #define NR_IOBUS_DEVS 300 |
Sasha Levin | 743eeb0 | 2011-07-27 16:00:48 +0300 | [diff] [blame] | 74 | struct kvm_io_range range[NR_IOBUS_DEVS]; |
Gregory Haskins | 2eeb2e9 | 2007-05-31 14:08:53 -0400 | [diff] [blame] | 75 | }; |
| 76 | |
Marcelo Tosatti | e93f8a0 | 2009-12-23 14:35:24 -0200 | [diff] [blame] | 77 | enum kvm_bus { |
| 78 | KVM_MMIO_BUS, |
| 79 | KVM_PIO_BUS, |
| 80 | KVM_NR_BUSES |
| 81 | }; |
| 82 | |
| 83 | int kvm_io_bus_write(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr, |
| 84 | int len, const void *val); |
| 85 | 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] | 86 | void *val); |
Sasha Levin | 743eeb0 | 2011-07-27 16:00:48 +0300 | [diff] [blame] | 87 | int kvm_io_bus_register_dev(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr, |
| 88 | int len, struct kvm_io_device *dev); |
Marcelo Tosatti | e93f8a0 | 2009-12-23 14:35:24 -0200 | [diff] [blame] | 89 | int kvm_io_bus_unregister_dev(struct kvm *kvm, enum kvm_bus bus_idx, |
| 90 | struct kvm_io_device *dev); |
Gregory Haskins | 2eeb2e9 | 2007-05-31 14:08:53 -0400 | [diff] [blame] | 91 | |
Gleb Natapov | af585b9 | 2010-10-14 11:22:46 +0200 | [diff] [blame] | 92 | #ifdef CONFIG_KVM_ASYNC_PF |
| 93 | struct kvm_async_pf { |
| 94 | struct work_struct work; |
| 95 | struct list_head link; |
| 96 | struct list_head queue; |
| 97 | struct kvm_vcpu *vcpu; |
| 98 | struct mm_struct *mm; |
| 99 | gva_t gva; |
| 100 | unsigned long addr; |
| 101 | struct kvm_arch_async_pf arch; |
| 102 | struct page *page; |
| 103 | bool done; |
| 104 | }; |
| 105 | |
| 106 | void kvm_clear_async_pf_completion_queue(struct kvm_vcpu *vcpu); |
| 107 | void kvm_check_async_pf_completion(struct kvm_vcpu *vcpu); |
| 108 | int kvm_setup_async_pf(struct kvm_vcpu *vcpu, gva_t gva, gfn_t gfn, |
| 109 | struct kvm_arch_async_pf *arch); |
Gleb Natapov | 344d958 | 2010-10-14 11:22:50 +0200 | [diff] [blame] | 110 | int kvm_async_pf_wakeup_all(struct kvm_vcpu *vcpu); |
Gleb Natapov | af585b9 | 2010-10-14 11:22:46 +0200 | [diff] [blame] | 111 | #endif |
| 112 | |
Xiao Guangrong | 6b7e2d0 | 2011-01-12 15:40:31 +0800 | [diff] [blame] | 113 | enum { |
| 114 | OUTSIDE_GUEST_MODE, |
| 115 | IN_GUEST_MODE, |
| 116 | EXITING_GUEST_MODE |
| 117 | }; |
| 118 | |
Zhang Xiantao | d657a98 | 2007-12-14 09:41:22 +0800 | [diff] [blame] | 119 | struct kvm_vcpu { |
Zhang Xiantao | d17fbbf | 2007-12-14 09:45:31 +0800 | [diff] [blame] | 120 | struct kvm *kvm; |
Hollis Blanchard | 31bb117 | 2008-01-28 17:42:34 -0600 | [diff] [blame] | 121 | #ifdef CONFIG_PREEMPT_NOTIFIERS |
Zhang Xiantao | d17fbbf | 2007-12-14 09:45:31 +0800 | [diff] [blame] | 122 | struct preempt_notifier preempt_notifier; |
Hollis Blanchard | 31bb117 | 2008-01-28 17:42:34 -0600 | [diff] [blame] | 123 | #endif |
Xiao Guangrong | 6b7e2d0 | 2011-01-12 15:40:31 +0800 | [diff] [blame] | 124 | int cpu; |
Zhang Xiantao | d17fbbf | 2007-12-14 09:45:31 +0800 | [diff] [blame] | 125 | int vcpu_id; |
Xiao Guangrong | 6b7e2d0 | 2011-01-12 15:40:31 +0800 | [diff] [blame] | 126 | int srcu_idx; |
| 127 | int mode; |
Zhang Xiantao | d17fbbf | 2007-12-14 09:45:31 +0800 | [diff] [blame] | 128 | unsigned long requests; |
Jan Kiszka | d0bfb94 | 2008-12-15 13:52:10 +0100 | [diff] [blame] | 129 | unsigned long guest_debug; |
Xiao Guangrong | 6b7e2d0 | 2011-01-12 15:40:31 +0800 | [diff] [blame] | 130 | |
| 131 | struct mutex mutex; |
| 132 | struct kvm_run *run; |
Marcelo Tosatti | f656ce0 | 2009-12-23 14:35:25 -0200 | [diff] [blame] | 133 | |
Zhang Xiantao | d17fbbf | 2007-12-14 09:45:31 +0800 | [diff] [blame] | 134 | int fpu_active; |
Dexuan Cui | 2acf923 | 2010-06-10 11:27:12 +0800 | [diff] [blame] | 135 | int guest_fpu_loaded, guest_xcr0_loaded; |
Zhang Xiantao | d17fbbf | 2007-12-14 09:45:31 +0800 | [diff] [blame] | 136 | wait_queue_head_t wq; |
Rik van Riel | 34bb10b | 2011-02-01 09:52:41 -0500 | [diff] [blame] | 137 | struct pid *pid; |
Zhang Xiantao | d17fbbf | 2007-12-14 09:45:31 +0800 | [diff] [blame] | 138 | int sigset_active; |
| 139 | sigset_t sigset; |
| 140 | struct kvm_vcpu_stat stat; |
| 141 | |
| 142 | #ifdef CONFIG_HAS_IOMEM |
| 143 | int mmio_needed; |
| 144 | int mmio_read_completed; |
| 145 | int mmio_is_write; |
| 146 | int mmio_size; |
Avi Kivity | cef4dea | 2010-01-20 12:01:20 +0200 | [diff] [blame] | 147 | int mmio_index; |
| 148 | unsigned char mmio_data[KVM_MMIO_SIZE]; |
Zhang Xiantao | d17fbbf | 2007-12-14 09:45:31 +0800 | [diff] [blame] | 149 | gpa_t mmio_phys_addr; |
| 150 | #endif |
Zhang Xiantao | d657a98 | 2007-12-14 09:41:22 +0800 | [diff] [blame] | 151 | |
Gleb Natapov | af585b9 | 2010-10-14 11:22:46 +0200 | [diff] [blame] | 152 | #ifdef CONFIG_KVM_ASYNC_PF |
| 153 | struct { |
| 154 | u32 queued; |
| 155 | struct list_head queue; |
| 156 | struct list_head done; |
| 157 | spinlock_t lock; |
| 158 | } async_pf; |
| 159 | #endif |
| 160 | |
Zhang Xiantao | d657a98 | 2007-12-14 09:41:22 +0800 | [diff] [blame] | 161 | struct kvm_vcpu_arch arch; |
| 162 | }; |
| 163 | |
Xiao Guangrong | 6b7e2d0 | 2011-01-12 15:40:31 +0800 | [diff] [blame] | 164 | static inline int kvm_vcpu_exiting_guest_mode(struct kvm_vcpu *vcpu) |
| 165 | { |
| 166 | return cmpxchg(&vcpu->mode, IN_GUEST_MODE, EXITING_GUEST_MODE); |
| 167 | } |
| 168 | |
Takuya Yoshikawa | 660c22c | 2010-04-13 22:47:24 +0900 | [diff] [blame] | 169 | /* |
| 170 | * Some of the bitops functions do not support too long bitmaps. |
| 171 | * This number must be determined not to exceed such limits. |
| 172 | */ |
| 173 | #define KVM_MEM_MAX_NR_PAGES ((1UL << 31) - 1) |
| 174 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 175 | struct kvm_memory_slot { |
| 176 | gfn_t base_gfn; |
| 177 | unsigned long npages; |
| 178 | unsigned long flags; |
Izik Eidus | 290fc38 | 2007-09-27 14:11:22 +0200 | [diff] [blame] | 179 | unsigned long *rmap; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 180 | unsigned long *dirty_bitmap; |
Takuya Yoshikawa | 515a012 | 2010-10-27 18:23:54 +0900 | [diff] [blame] | 181 | unsigned long *dirty_bitmap_head; |
Takuya Yoshikawa | 7850ac5 | 2011-11-14 18:23:34 +0900 | [diff] [blame] | 182 | unsigned long nr_dirty_pages; |
Takuya Yoshikawa | db3fe4e | 2012-02-08 13:02:18 +0900 | [diff] [blame] | 183 | struct kvm_arch_memory_slot arch; |
Izik Eidus | 8a7ae05 | 2007-10-18 11:09:33 +0200 | [diff] [blame] | 184 | unsigned long userspace_addr; |
Izik Eidus | 80b14b5 | 2007-10-25 11:54:04 +0200 | [diff] [blame] | 185 | int user_alloc; |
Avi Kivity | e36d96f | 2010-06-21 10:56:36 +0300 | [diff] [blame] | 186 | int id; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 187 | }; |
| 188 | |
Takuya Yoshikawa | 87bf6e7 | 2010-04-12 19:35:35 +0900 | [diff] [blame] | 189 | static inline unsigned long kvm_dirty_bitmap_bytes(struct kvm_memory_slot *memslot) |
| 190 | { |
| 191 | return ALIGN(memslot->npages, BITS_PER_LONG) / 8; |
| 192 | } |
| 193 | |
Avi Kivity | 399ec80 | 2008-11-19 13:58:46 +0200 | [diff] [blame] | 194 | struct kvm_kernel_irq_routing_entry { |
| 195 | u32 gsi; |
Michael S. Tsirkin | 5116d8f | 2009-07-26 17:10:01 +0300 | [diff] [blame] | 196 | u32 type; |
Gleb Natapov | 4925663 | 2009-02-04 17:28:14 +0200 | [diff] [blame] | 197 | int (*set)(struct kvm_kernel_irq_routing_entry *e, |
Gleb Natapov | 1a6e4a8 | 2009-08-24 11:54:19 +0300 | [diff] [blame] | 198 | struct kvm *kvm, int irq_source_id, int level); |
Avi Kivity | 399ec80 | 2008-11-19 13:58:46 +0200 | [diff] [blame] | 199 | union { |
| 200 | struct { |
| 201 | unsigned irqchip; |
| 202 | unsigned pin; |
| 203 | } irqchip; |
Sheng Yang | 79950e1 | 2009-02-10 13:57:06 +0800 | [diff] [blame] | 204 | struct msi_msg msi; |
Avi Kivity | 399ec80 | 2008-11-19 13:58:46 +0200 | [diff] [blame] | 205 | }; |
Gleb Natapov | 46e624b | 2009-08-24 11:54:20 +0300 | [diff] [blame] | 206 | struct hlist_node link; |
| 207 | }; |
| 208 | |
Gleb Natapov | 3e71f88 | 2009-08-24 11:54:21 +0300 | [diff] [blame] | 209 | #ifdef __KVM_HAVE_IOAPIC |
| 210 | |
Gleb Natapov | 46e624b | 2009-08-24 11:54:20 +0300 | [diff] [blame] | 211 | struct kvm_irq_routing_table { |
Gleb Natapov | 3e71f88 | 2009-08-24 11:54:21 +0300 | [diff] [blame] | 212 | int chip[KVM_NR_IRQCHIPS][KVM_IOAPIC_NUM_PINS]; |
Gleb Natapov | 46e624b | 2009-08-24 11:54:20 +0300 | [diff] [blame] | 213 | struct kvm_kernel_irq_routing_entry *rt_entries; |
| 214 | u32 nr_rt_entries; |
| 215 | /* |
| 216 | * Array indexed by gsi. Each entry contains list of irq chips |
| 217 | * the gsi is connected to. |
| 218 | */ |
| 219 | struct hlist_head map[0]; |
Avi Kivity | 399ec80 | 2008-11-19 13:58:46 +0200 | [diff] [blame] | 220 | }; |
| 221 | |
Gleb Natapov | 3e71f88 | 2009-08-24 11:54:21 +0300 | [diff] [blame] | 222 | #else |
| 223 | |
| 224 | struct kvm_irq_routing_table {}; |
| 225 | |
| 226 | #endif |
| 227 | |
Xiao Guangrong | 93a5cef | 2011-11-24 17:37:48 +0800 | [diff] [blame] | 228 | #ifndef KVM_MEM_SLOTS_NUM |
| 229 | #define KVM_MEM_SLOTS_NUM (KVM_MEMORY_SLOTS + KVM_PRIVATE_MEM_SLOTS) |
| 230 | #endif |
| 231 | |
Xiao Guangrong | bf3e05b | 2011-11-24 17:40:57 +0800 | [diff] [blame] | 232 | /* |
| 233 | * Note: |
| 234 | * memslots are not sorted by id anymore, please use id_to_memslot() |
| 235 | * to get the memslot by its id. |
| 236 | */ |
Marcelo Tosatti | 46a26bf | 2009-12-23 14:35:16 -0200 | [diff] [blame] | 237 | struct kvm_memslots { |
Gleb Natapov | 49c7754 | 2010-10-18 15:22:23 +0200 | [diff] [blame] | 238 | u64 generation; |
Xiao Guangrong | 93a5cef | 2011-11-24 17:37:48 +0800 | [diff] [blame] | 239 | struct kvm_memory_slot memslots[KVM_MEM_SLOTS_NUM]; |
Xiao Guangrong | f85e2cb | 2011-11-24 17:41:54 +0800 | [diff] [blame] | 240 | /* The mapping table from slot id to the index in memslots[]. */ |
| 241 | int id_to_index[KVM_MEM_SLOTS_NUM]; |
Marcelo Tosatti | 46a26bf | 2009-12-23 14:35:16 -0200 | [diff] [blame] | 242 | }; |
| 243 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 244 | struct kvm { |
Marcelo Tosatti | aaee2c9 | 2007-12-20 19:18:26 -0500 | [diff] [blame] | 245 | spinlock_t mmu_lock; |
Marcelo Tosatti | 79fac95 | 2009-12-23 14:35:26 -0200 | [diff] [blame] | 246 | struct mutex slots_lock; |
Avi Kivity | 6d4e4c4 | 2007-11-21 16:41:05 +0200 | [diff] [blame] | 247 | struct mm_struct *mm; /* userspace tied to this vm */ |
Marcelo Tosatti | 46a26bf | 2009-12-23 14:35:16 -0200 | [diff] [blame] | 248 | struct kvm_memslots *memslots; |
Marcelo Tosatti | bc6678a | 2009-12-23 14:35:21 -0200 | [diff] [blame] | 249 | struct srcu_struct srcu; |
Gleb Natapov | 73880c8 | 2009-06-09 15:56:28 +0300 | [diff] [blame] | 250 | #ifdef CONFIG_KVM_APIC_ARCHITECTURE |
| 251 | u32 bsp_vcpu_id; |
Gleb Natapov | 73880c8 | 2009-06-09 15:56:28 +0300 | [diff] [blame] | 252 | #endif |
Rusty Russell | fb3f0f5 | 2007-07-27 17:16:56 +1000 | [diff] [blame] | 253 | struct kvm_vcpu *vcpus[KVM_MAX_VCPUS]; |
Gleb Natapov | 73880c8 | 2009-06-09 15:56:28 +0300 | [diff] [blame] | 254 | atomic_t online_vcpus; |
Rik van Riel | 217ece6 | 2011-02-01 09:53:28 -0500 | [diff] [blame] | 255 | int last_boosted_vcpu; |
Avi Kivity | 133de90 | 2007-02-12 00:54:44 -0800 | [diff] [blame] | 256 | struct list_head vm_list; |
Marcelo Tosatti | 60eead7 | 2009-06-04 15:08:23 -0300 | [diff] [blame] | 257 | struct mutex lock; |
Marcelo Tosatti | e93f8a0 | 2009-12-23 14:35:24 -0200 | [diff] [blame] | 258 | struct kvm_io_bus *buses[KVM_NR_BUSES]; |
Gregory Haskins | 721eecb | 2009-05-20 10:30:49 -0400 | [diff] [blame] | 259 | #ifdef CONFIG_HAVE_KVM_EVENTFD |
| 260 | struct { |
| 261 | spinlock_t lock; |
| 262 | struct list_head items; |
| 263 | } irqfds; |
Gregory Haskins | d34e6b1 | 2009-07-07 17:08:49 -0400 | [diff] [blame] | 264 | struct list_head ioeventfds; |
Gregory Haskins | 721eecb | 2009-05-20 10:30:49 -0400 | [diff] [blame] | 265 | #endif |
Avi Kivity | ba1389b | 2007-11-18 16:24:12 +0200 | [diff] [blame] | 266 | struct kvm_vm_stat stat; |
Zhang Xiantao | d69fb81 | 2007-12-14 09:54:20 +0800 | [diff] [blame] | 267 | struct kvm_arch arch; |
Izik Eidus | d39f13b | 2008-03-30 16:01:25 +0300 | [diff] [blame] | 268 | atomic_t users_count; |
Laurent Vivier | 5f94c17 | 2008-05-30 16:05:54 +0200 | [diff] [blame] | 269 | #ifdef KVM_COALESCED_MMIO_PAGE_OFFSET |
Laurent Vivier | 5f94c17 | 2008-05-30 16:05:54 +0200 | [diff] [blame] | 270 | struct kvm_coalesced_mmio_ring *coalesced_mmio_ring; |
Sasha Levin | 2b3c246 | 2011-07-20 20:59:00 +0300 | [diff] [blame] | 271 | spinlock_t ring_lock; |
| 272 | struct list_head coalesced_zones; |
Laurent Vivier | 5f94c17 | 2008-05-30 16:05:54 +0200 | [diff] [blame] | 273 | #endif |
Andrea Arcangeli | e930bff | 2008-07-25 16:24:52 +0200 | [diff] [blame] | 274 | |
Marcelo Tosatti | 60eead7 | 2009-06-04 15:08:23 -0300 | [diff] [blame] | 275 | struct mutex irq_lock; |
Avi Kivity | 75858a8 | 2009-01-04 17:10:50 +0200 | [diff] [blame] | 276 | #ifdef CONFIG_HAVE_KVM_IRQCHIP |
Michael S. Tsirkin | bd2b53b | 2010-11-18 19:09:08 +0200 | [diff] [blame] | 277 | /* |
| 278 | * Update side is protected by irq_lock and, |
| 279 | * if configured, irqfds.lock. |
| 280 | */ |
Arnd Bergmann | 4b6a287 | 2010-03-04 15:59:23 +0100 | [diff] [blame] | 281 | struct kvm_irq_routing_table __rcu *irq_routing; |
Avi Kivity | 75858a8 | 2009-01-04 17:10:50 +0200 | [diff] [blame] | 282 | struct hlist_head mask_notifier_list; |
Gleb Natapov | 136bdfe | 2009-08-24 11:54:23 +0300 | [diff] [blame] | 283 | struct hlist_head irq_ack_notifier_list; |
Avi Kivity | 75858a8 | 2009-01-04 17:10:50 +0200 | [diff] [blame] | 284 | #endif |
| 285 | |
Andrea Arcangeli | e930bff | 2008-07-25 16:24:52 +0200 | [diff] [blame] | 286 | #ifdef KVM_ARCH_WANT_MMU_NOTIFIER |
| 287 | struct mmu_notifier mmu_notifier; |
| 288 | unsigned long mmu_notifier_seq; |
| 289 | long mmu_notifier_count; |
| 290 | #endif |
Avi Kivity | 5c663a1 | 2010-12-08 18:04:51 +0200 | [diff] [blame] | 291 | long tlbs_dirty; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 292 | }; |
| 293 | |
Rusty Russell | f024247 | 2007-08-01 10:48:02 +1000 | [diff] [blame] | 294 | /* The guest did something we don't support. */ |
| 295 | #define pr_unimpl(vcpu, fmt, ...) \ |
Jan Kiszka | bd80158 | 2011-09-12 11:26:22 +0200 | [diff] [blame] | 296 | pr_err_ratelimited("kvm: %i: cpu%i " fmt, \ |
| 297 | current->tgid, (vcpu)->vcpu_id , ## __VA_ARGS__) |
Rusty Russell | f024247 | 2007-08-01 10:48:02 +1000 | [diff] [blame] | 298 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 299 | #define kvm_printf(kvm, fmt ...) printk(KERN_DEBUG fmt) |
| 300 | #define vcpu_printf(vcpu, fmt...) kvm_printf(vcpu->kvm, fmt) |
| 301 | |
Gleb Natapov | 988a2ca | 2009-06-09 15:56:29 +0300 | [diff] [blame] | 302 | static inline struct kvm_vcpu *kvm_get_vcpu(struct kvm *kvm, int i) |
| 303 | { |
| 304 | smp_rmb(); |
| 305 | return kvm->vcpus[i]; |
| 306 | } |
| 307 | |
| 308 | #define kvm_for_each_vcpu(idx, vcpup, kvm) \ |
Jeff Mahoney | b42fc3c | 2011-04-12 21:30:17 -0400 | [diff] [blame] | 309 | for (idx = 0; \ |
| 310 | idx < atomic_read(&kvm->online_vcpus) && \ |
| 311 | (vcpup = kvm_get_vcpu(kvm, idx)) != NULL; \ |
| 312 | idx++) |
Gleb Natapov | 988a2ca | 2009-06-09 15:56:29 +0300 | [diff] [blame] | 313 | |
Xiao Guangrong | be6ba0f | 2011-11-24 17:39:18 +0800 | [diff] [blame] | 314 | #define kvm_for_each_memslot(memslot, slots) \ |
| 315 | for (memslot = &slots->memslots[0]; \ |
Xiao Guangrong | bf3e05b | 2011-11-24 17:40:57 +0800 | [diff] [blame] | 316 | memslot < slots->memslots + KVM_MEM_SLOTS_NUM && memslot->npages;\ |
| 317 | memslot++) |
Xiao Guangrong | be6ba0f | 2011-11-24 17:39:18 +0800 | [diff] [blame] | 318 | |
Rusty Russell | fb3f0f5 | 2007-07-27 17:16:56 +1000 | [diff] [blame] | 319 | int kvm_vcpu_init(struct kvm_vcpu *vcpu, struct kvm *kvm, unsigned id); |
| 320 | void kvm_vcpu_uninit(struct kvm_vcpu *vcpu); |
| 321 | |
Carsten Otte | 313a3dc | 2007-10-11 19:16:52 +0200 | [diff] [blame] | 322 | void vcpu_load(struct kvm_vcpu *vcpu); |
| 323 | void vcpu_put(struct kvm_vcpu *vcpu); |
| 324 | |
Avi Kivity | 0ee75be | 2010-04-28 15:39:01 +0300 | [diff] [blame] | 325 | int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align, |
Rusty Russell | c16f862 | 2007-07-30 21:12:19 +1000 | [diff] [blame] | 326 | struct module *module); |
Zhang Xiantao | cb498ea | 2007-11-14 20:39:31 +0800 | [diff] [blame] | 327 | void kvm_exit(void); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 328 | |
Izik Eidus | d39f13b | 2008-03-30 16:01:25 +0300 | [diff] [blame] | 329 | void kvm_get_kvm(struct kvm *kvm); |
| 330 | void kvm_put_kvm(struct kvm *kvm); |
Xiao Guangrong | be593d6 | 2011-11-24 17:38:24 +0800 | [diff] [blame] | 331 | void update_memslots(struct kvm_memslots *slots, struct kvm_memory_slot *new); |
Izik Eidus | d39f13b | 2008-03-30 16:01:25 +0300 | [diff] [blame] | 332 | |
Lai Jiangshan | 90d83dc | 2010-04-19 17:41:23 +0800 | [diff] [blame] | 333 | static inline struct kvm_memslots *kvm_memslots(struct kvm *kvm) |
| 334 | { |
| 335 | return rcu_dereference_check(kvm->memslots, |
| 336 | srcu_read_lock_held(&kvm->srcu) |
| 337 | || lockdep_is_held(&kvm->slots_lock)); |
| 338 | } |
| 339 | |
Xiao Guangrong | 28a3754 | 2011-11-24 19:04:35 +0800 | [diff] [blame] | 340 | static inline struct kvm_memory_slot * |
| 341 | id_to_memslot(struct kvm_memslots *slots, int id) |
| 342 | { |
Xiao Guangrong | f85e2cb | 2011-11-24 17:41:54 +0800 | [diff] [blame] | 343 | int index = slots->id_to_index[id]; |
| 344 | struct kvm_memory_slot *slot; |
Xiao Guangrong | bf3e05b | 2011-11-24 17:40:57 +0800 | [diff] [blame] | 345 | |
Xiao Guangrong | f85e2cb | 2011-11-24 17:41:54 +0800 | [diff] [blame] | 346 | slot = &slots->memslots[index]; |
Xiao Guangrong | bf3e05b | 2011-11-24 17:40:57 +0800 | [diff] [blame] | 347 | |
Xiao Guangrong | f85e2cb | 2011-11-24 17:41:54 +0800 | [diff] [blame] | 348 | WARN_ON(slot->id != id); |
| 349 | return slot; |
Xiao Guangrong | 28a3754 | 2011-11-24 19:04:35 +0800 | [diff] [blame] | 350 | } |
| 351 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 352 | #define HPA_MSB ((sizeof(hpa_t) * 8) - 1) |
| 353 | #define HPA_ERR_MASK ((hpa_t)1 << HPA_MSB) |
| 354 | 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] | 355 | |
Izik Eidus | cea7bb2 | 2007-10-17 19:17:48 +0200 | [diff] [blame] | 356 | extern struct page *bad_page; |
Xiao Guangrong | fce92dc | 2011-07-12 03:28:54 +0800 | [diff] [blame] | 357 | extern struct page *fault_page; |
| 358 | |
Anthony Liguori | 35149e2 | 2008-04-02 14:46:56 -0500 | [diff] [blame] | 359 | extern pfn_t bad_pfn; |
Xiao Guangrong | fce92dc | 2011-07-12 03:28:54 +0800 | [diff] [blame] | 360 | extern pfn_t fault_pfn; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 361 | |
Izik Eidus | cea7bb2 | 2007-10-17 19:17:48 +0200 | [diff] [blame] | 362 | int is_error_page(struct page *page); |
Anthony Liguori | 35149e2 | 2008-04-02 14:46:56 -0500 | [diff] [blame] | 363 | int is_error_pfn(pfn_t pfn); |
Huang Ying | bf99815 | 2010-05-31 14:28:19 +0800 | [diff] [blame] | 364 | int is_hwpoison_pfn(pfn_t pfn); |
Gleb Natapov | edba23e | 2010-07-07 20:16:45 +0300 | [diff] [blame] | 365 | int is_fault_pfn(pfn_t pfn); |
Xiao Guangrong | fce92dc | 2011-07-12 03:28:54 +0800 | [diff] [blame] | 366 | int is_noslot_pfn(pfn_t pfn); |
| 367 | int is_invalid_pfn(pfn_t pfn); |
Izik Eidus | f9d46eb | 2007-11-11 22:02:22 +0200 | [diff] [blame] | 368 | int kvm_is_error_hva(unsigned long addr); |
Izik Eidus | 210c7c4 | 2007-10-24 23:52:57 +0200 | [diff] [blame] | 369 | int kvm_set_memory_region(struct kvm *kvm, |
| 370 | struct kvm_userspace_memory_region *mem, |
| 371 | int user_alloc); |
Sheng Yang | f78e0e2 | 2007-10-29 09:40:42 +0800 | [diff] [blame] | 372 | int __kvm_set_memory_region(struct kvm *kvm, |
| 373 | struct kvm_userspace_memory_region *mem, |
| 374 | int user_alloc); |
Takuya Yoshikawa | db3fe4e | 2012-02-08 13:02:18 +0900 | [diff] [blame] | 375 | void kvm_arch_free_memslot(struct kvm_memory_slot *free, |
| 376 | struct kvm_memory_slot *dont); |
| 377 | int kvm_arch_create_memslot(struct kvm_memory_slot *slot, unsigned long npages); |
Marcelo Tosatti | f7784b8 | 2009-12-23 14:35:18 -0200 | [diff] [blame] | 378 | int kvm_arch_prepare_memory_region(struct kvm *kvm, |
| 379 | struct kvm_memory_slot *memslot, |
| 380 | struct kvm_memory_slot old, |
| 381 | struct kvm_userspace_memory_region *mem, |
| 382 | int user_alloc); |
| 383 | void kvm_arch_commit_memory_region(struct kvm *kvm, |
Zhang Xiantao | 0de1034 | 2007-11-20 16:25:04 +0800 | [diff] [blame] | 384 | struct kvm_userspace_memory_region *mem, |
| 385 | struct kvm_memory_slot old, |
| 386 | int user_alloc); |
Takuya Yoshikawa | db3fe4e | 2012-02-08 13:02:18 +0900 | [diff] [blame] | 387 | bool kvm_largepages_enabled(void); |
Marcelo Tosatti | 54dee99 | 2009-06-11 12:07:44 -0300 | [diff] [blame] | 388 | void kvm_disable_largepages(void); |
Marcelo Tosatti | 34d4cb8 | 2008-07-10 20:49:31 -0300 | [diff] [blame] | 389 | void kvm_arch_flush_shadow(struct kvm *kvm); |
Marcelo Tosatti | a983fb2 | 2009-12-23 14:35:23 -0200 | [diff] [blame] | 390 | |
Xiao Guangrong | 4898778 | 2010-08-22 19:11:43 +0800 | [diff] [blame] | 391 | int gfn_to_page_many_atomic(struct kvm *kvm, gfn_t gfn, struct page **pages, |
| 392 | int nr_pages); |
| 393 | |
Avi Kivity | 954bbbc2 | 2007-03-30 14:02:32 +0300 | [diff] [blame] | 394 | struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn); |
Marcelo Tosatti | 05da455 | 2008-02-23 11:44:30 -0300 | [diff] [blame] | 395 | unsigned long gfn_to_hva(struct kvm *kvm, gfn_t gfn); |
Izik Eidus | b4231d6 | 2007-11-20 11:49:33 +0200 | [diff] [blame] | 396 | void kvm_release_page_clean(struct page *page); |
| 397 | void kvm_release_page_dirty(struct page *page); |
Anthony Liguori | 35149e2 | 2008-04-02 14:46:56 -0500 | [diff] [blame] | 398 | void kvm_set_page_dirty(struct page *page); |
| 399 | void kvm_set_page_accessed(struct page *page); |
| 400 | |
Xiao Guangrong | 887c08a | 2010-08-22 19:10:28 +0800 | [diff] [blame] | 401 | pfn_t hva_to_pfn_atomic(struct kvm *kvm, unsigned long addr); |
Xiao Guangrong | 365fb3f | 2010-08-28 19:24:13 +0800 | [diff] [blame] | 402 | pfn_t gfn_to_pfn_atomic(struct kvm *kvm, gfn_t gfn); |
Marcelo Tosatti | 612819c | 2010-10-22 14:18:18 -0200 | [diff] [blame] | 403 | pfn_t gfn_to_pfn_async(struct kvm *kvm, gfn_t gfn, bool *async, |
| 404 | bool write_fault, bool *writable); |
Anthony Liguori | 35149e2 | 2008-04-02 14:46:56 -0500 | [diff] [blame] | 405 | pfn_t gfn_to_pfn(struct kvm *kvm, gfn_t gfn); |
Marcelo Tosatti | 612819c | 2010-10-22 14:18:18 -0200 | [diff] [blame] | 406 | pfn_t gfn_to_pfn_prot(struct kvm *kvm, gfn_t gfn, bool write_fault, |
| 407 | bool *writable); |
Marcelo Tosatti | 506f0d6 | 2009-12-23 14:35:19 -0200 | [diff] [blame] | 408 | pfn_t gfn_to_pfn_memslot(struct kvm *kvm, |
| 409 | struct kvm_memory_slot *slot, gfn_t gfn); |
Anthony Liguori | 35149e2 | 2008-04-02 14:46:56 -0500 | [diff] [blame] | 410 | void kvm_release_pfn_dirty(pfn_t); |
| 411 | void kvm_release_pfn_clean(pfn_t pfn); |
| 412 | void kvm_set_pfn_dirty(pfn_t pfn); |
| 413 | void kvm_set_pfn_accessed(pfn_t pfn); |
| 414 | void kvm_get_pfn(pfn_t pfn); |
| 415 | |
Izik Eidus | 195aefd | 2007-10-01 22:14:18 +0200 | [diff] [blame] | 416 | int kvm_read_guest_page(struct kvm *kvm, gfn_t gfn, void *data, int offset, |
| 417 | int len); |
Marcelo Tosatti | 7ec5458 | 2007-12-20 19:18:23 -0500 | [diff] [blame] | 418 | int kvm_read_guest_atomic(struct kvm *kvm, gpa_t gpa, void *data, |
| 419 | unsigned long len); |
Izik Eidus | 195aefd | 2007-10-01 22:14:18 +0200 | [diff] [blame] | 420 | int kvm_read_guest(struct kvm *kvm, gpa_t gpa, void *data, unsigned long len); |
Gleb Natapov | e03b644 | 2011-07-11 15:28:11 -0400 | [diff] [blame] | 421 | int kvm_read_guest_cached(struct kvm *kvm, struct gfn_to_hva_cache *ghc, |
| 422 | void *data, unsigned long len); |
Izik Eidus | 195aefd | 2007-10-01 22:14:18 +0200 | [diff] [blame] | 423 | int kvm_write_guest_page(struct kvm *kvm, gfn_t gfn, const void *data, |
| 424 | int offset, int len); |
| 425 | int kvm_write_guest(struct kvm *kvm, gpa_t gpa, const void *data, |
| 426 | unsigned long len); |
Gleb Natapov | 49c7754 | 2010-10-18 15:22:23 +0200 | [diff] [blame] | 427 | int kvm_write_guest_cached(struct kvm *kvm, struct gfn_to_hva_cache *ghc, |
| 428 | void *data, unsigned long len); |
| 429 | int kvm_gfn_to_hva_cache_init(struct kvm *kvm, struct gfn_to_hva_cache *ghc, |
| 430 | gpa_t gpa); |
Izik Eidus | 195aefd | 2007-10-01 22:14:18 +0200 | [diff] [blame] | 431 | int kvm_clear_guest_page(struct kvm *kvm, gfn_t gfn, int offset, int len); |
| 432 | 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] | 433 | 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] | 434 | int kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn); |
Joerg Roedel | 8f0b1ab | 2010-01-28 12:37:56 +0100 | [diff] [blame] | 435 | unsigned long kvm_host_page_size(struct kvm *kvm, gfn_t gfn); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 436 | void mark_page_dirty(struct kvm *kvm, gfn_t gfn); |
Gleb Natapov | 49c7754 | 2010-10-18 15:22:23 +0200 | [diff] [blame] | 437 | void mark_page_dirty_in_slot(struct kvm *kvm, struct kvm_memory_slot *memslot, |
| 438 | gfn_t gfn); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 439 | |
Hollis Blanchard | 8776e51 | 2007-10-31 17:24:24 -0500 | [diff] [blame] | 440 | void kvm_vcpu_block(struct kvm_vcpu *vcpu); |
Zhai, Edwin | d255f4f | 2009-10-09 18:03:20 +0800 | [diff] [blame] | 441 | void kvm_vcpu_on_spin(struct kvm_vcpu *vcpu); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 442 | void kvm_resched(struct kvm_vcpu *vcpu); |
Avi Kivity | 7702fd1 | 2007-06-14 16:27:40 +0300 | [diff] [blame] | 443 | void kvm_load_guest_fpu(struct kvm_vcpu *vcpu); |
| 444 | void kvm_put_guest_fpu(struct kvm_vcpu *vcpu); |
Xiao Guangrong | a4ee1ca | 2010-11-23 11:13:00 +0800 | [diff] [blame] | 445 | |
Avi Kivity | d9e368d | 2007-06-07 19:18:30 +0300 | [diff] [blame] | 446 | void kvm_flush_remote_tlbs(struct kvm *kvm); |
Marcelo Tosatti | 2e53d63 | 2008-02-20 14:47:24 -0500 | [diff] [blame] | 447 | void kvm_reload_remote_mmus(struct kvm *kvm); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 448 | |
Carsten Otte | 043405e | 2007-10-10 17:16:19 +0200 | [diff] [blame] | 449 | long kvm_arch_dev_ioctl(struct file *filp, |
| 450 | unsigned int ioctl, unsigned long arg); |
Carsten Otte | 313a3dc | 2007-10-11 19:16:52 +0200 | [diff] [blame] | 451 | long kvm_arch_vcpu_ioctl(struct file *filp, |
| 452 | unsigned int ioctl, unsigned long arg); |
Carsten Otte | 5b1c149 | 2012-01-04 10:25:23 +0100 | [diff] [blame] | 453 | int kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf); |
Zhang Xiantao | 018d00d | 2007-11-15 23:07:47 +0800 | [diff] [blame] | 454 | |
| 455 | int kvm_dev_ioctl_check_extension(long ext); |
| 456 | |
Zhang Xiantao | 5bb064d | 2007-11-18 20:29:43 +0800 | [diff] [blame] | 457 | int kvm_get_dirty_log(struct kvm *kvm, |
| 458 | struct kvm_dirty_log *log, int *is_dirty); |
| 459 | int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, |
| 460 | struct kvm_dirty_log *log); |
| 461 | |
Carsten Otte | 1fe779f | 2007-10-29 16:08:35 +0100 | [diff] [blame] | 462 | int kvm_vm_ioctl_set_memory_region(struct kvm *kvm, |
| 463 | struct |
| 464 | kvm_userspace_memory_region *mem, |
| 465 | int user_alloc); |
| 466 | long kvm_arch_vm_ioctl(struct file *filp, |
| 467 | unsigned int ioctl, unsigned long arg); |
Carsten Otte | 313a3dc | 2007-10-11 19:16:52 +0200 | [diff] [blame] | 468 | |
Hollis Blanchard | d075206 | 2007-10-31 17:24:25 -0500 | [diff] [blame] | 469 | int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu); |
| 470 | int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu); |
| 471 | |
Zhang Xiantao | 8b00679 | 2007-11-16 13:05:55 +0800 | [diff] [blame] | 472 | int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu, |
| 473 | struct kvm_translation *tr); |
| 474 | |
Hollis Blanchard | b6c7a5d | 2007-11-01 14:16:10 -0500 | [diff] [blame] | 475 | int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs); |
| 476 | int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs); |
| 477 | int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu, |
| 478 | struct kvm_sregs *sregs); |
| 479 | int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu, |
| 480 | struct kvm_sregs *sregs); |
Marcelo Tosatti | 62d9f0d | 2008-04-11 13:24:45 -0300 | [diff] [blame] | 481 | int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu, |
| 482 | struct kvm_mp_state *mp_state); |
| 483 | int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, |
| 484 | struct kvm_mp_state *mp_state); |
Jan Kiszka | d0bfb94 | 2008-12-15 13:52:10 +0100 | [diff] [blame] | 485 | int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu, |
| 486 | struct kvm_guest_debug *dbg); |
Hollis Blanchard | b6c7a5d | 2007-11-01 14:16:10 -0500 | [diff] [blame] | 487 | int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run); |
| 488 | |
Zhang Xiantao | f8c16bb | 2007-11-14 20:40:21 +0800 | [diff] [blame] | 489 | int kvm_arch_init(void *opaque); |
| 490 | void kvm_arch_exit(void); |
Carsten Otte | 043405e | 2007-10-10 17:16:19 +0200 | [diff] [blame] | 491 | |
Zhang Xiantao | e9b11c1 | 2007-11-14 20:38:21 +0800 | [diff] [blame] | 492 | int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu); |
| 493 | void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu); |
| 494 | |
| 495 | void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu); |
| 496 | void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu); |
| 497 | void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu); |
| 498 | 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] | 499 | int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu); |
Hollis Blanchard | d40ccc6 | 2007-11-19 14:04:43 -0600 | [diff] [blame] | 500 | void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu); |
Zhang Xiantao | e9b11c1 | 2007-11-14 20:38:21 +0800 | [diff] [blame] | 501 | |
| 502 | int kvm_arch_vcpu_reset(struct kvm_vcpu *vcpu); |
Alexander Graf | 10474ae | 2009-09-15 11:37:46 +0200 | [diff] [blame] | 503 | int kvm_arch_hardware_enable(void *garbage); |
Zhang Xiantao | e9b11c1 | 2007-11-14 20:38:21 +0800 | [diff] [blame] | 504 | void kvm_arch_hardware_disable(void *garbage); |
| 505 | int kvm_arch_hardware_setup(void); |
| 506 | void kvm_arch_hardware_unsetup(void); |
| 507 | void kvm_arch_check_processor_compat(void *rtn); |
Zhang Xiantao | 1d737c8 | 2007-12-14 09:35:10 +0800 | [diff] [blame] | 508 | int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu); |
Zhang Xiantao | e9b11c1 | 2007-11-14 20:38:21 +0800 | [diff] [blame] | 509 | |
Zhang Xiantao | d19a9cd | 2007-11-18 18:43:45 +0800 | [diff] [blame] | 510 | void kvm_free_physmem(struct kvm *kvm); |
| 511 | |
Jan Kiszka | d89f5ef | 2010-11-09 17:02:49 +0100 | [diff] [blame] | 512 | #ifndef __KVM_HAVE_ARCH_VM_ALLOC |
| 513 | static inline struct kvm *kvm_arch_alloc_vm(void) |
| 514 | { |
| 515 | return kzalloc(sizeof(struct kvm), GFP_KERNEL); |
| 516 | } |
| 517 | |
| 518 | static inline void kvm_arch_free_vm(struct kvm *kvm) |
| 519 | { |
| 520 | kfree(kvm); |
| 521 | } |
| 522 | #endif |
| 523 | |
Carsten Otte | e08b963 | 2012-01-04 10:25:20 +0100 | [diff] [blame] | 524 | int kvm_arch_init_vm(struct kvm *kvm, unsigned long type); |
Zhang Xiantao | d19a9cd | 2007-11-18 18:43:45 +0800 | [diff] [blame] | 525 | void kvm_arch_destroy_vm(struct kvm *kvm); |
Xiantao Zhang | 8a98f66 | 2008-10-06 13:47:38 +0800 | [diff] [blame] | 526 | void kvm_free_all_assigned_devices(struct kvm *kvm); |
Sheng Yang | ad8ba2c | 2009-01-06 10:03:02 +0800 | [diff] [blame] | 527 | void kvm_arch_sync_events(struct kvm *kvm); |
Zhang Xiantao | e9b11c1 | 2007-11-14 20:38:21 +0800 | [diff] [blame] | 528 | |
Marcelo Tosatti | 3d80840 | 2008-04-11 14:53:26 -0300 | [diff] [blame] | 529 | int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu); |
Zhang Xiantao | 5736199 | 2007-12-17 14:21:40 +0800 | [diff] [blame] | 530 | void kvm_vcpu_kick(struct kvm_vcpu *vcpu); |
Zhang Xiantao | 682c59a | 2007-12-11 20:36:00 +0800 | [diff] [blame] | 531 | |
Xiantao Zhang | c77fb9d | 2008-09-27 10:55:40 +0800 | [diff] [blame] | 532 | int kvm_is_mmio_pfn(pfn_t pfn); |
| 533 | |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 534 | struct kvm_irq_ack_notifier { |
| 535 | struct hlist_node link; |
| 536 | unsigned gsi; |
| 537 | void (*irq_acked)(struct kvm_irq_ack_notifier *kian); |
| 538 | }; |
| 539 | |
| 540 | struct kvm_assigned_dev_kernel { |
| 541 | struct kvm_irq_ack_notifier ack_notifier; |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 542 | struct list_head list; |
| 543 | int assigned_dev_id; |
Zhai, Edwin | ab9f4ec | 2010-01-29 14:38:44 +0800 | [diff] [blame] | 544 | int host_segnr; |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 545 | int host_busnr; |
| 546 | int host_devfn; |
Sheng Yang | c1e0151 | 2009-02-25 17:22:26 +0800 | [diff] [blame] | 547 | unsigned int entries_nr; |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 548 | int host_irq; |
Mark McLoughlin | defaf15 | 2008-12-02 12:16:33 +0000 | [diff] [blame] | 549 | bool host_irq_disabled; |
Jan Kiszka | 07700a9 | 2012-02-28 14:19:54 +0100 | [diff] [blame] | 550 | bool pci_2_3; |
Sheng Yang | c1e0151 | 2009-02-25 17:22:26 +0800 | [diff] [blame] | 551 | struct msix_entry *host_msix_entries; |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 552 | int guest_irq; |
Jan Kiszka | 0645211 | 2010-11-16 22:30:03 +0100 | [diff] [blame] | 553 | struct msix_entry *guest_msix_entries; |
Sheng Yang | 4f906c1 | 2008-11-24 14:32:51 +0800 | [diff] [blame] | 554 | unsigned long irq_requested_type; |
Sheng Yang | 5550af4 | 2008-10-15 20:15:06 +0800 | [diff] [blame] | 555 | int irq_source_id; |
Weidong Han | b653574 | 2008-12-08 23:29:53 +0800 | [diff] [blame] | 556 | int flags; |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 557 | struct pci_dev *dev; |
| 558 | struct kvm *kvm; |
Jan Kiszka | 0645211 | 2010-11-16 22:30:03 +0100 | [diff] [blame] | 559 | spinlock_t intx_lock; |
Jan Kiszka | cf9eeac | 2012-03-14 11:02:11 +0100 | [diff] [blame] | 560 | spinlock_t intx_mask_lock; |
Jan Kiszka | 1e001d4 | 2010-11-16 22:30:04 +0100 | [diff] [blame] | 561 | char irq_name[32]; |
Alex Williamson | f8fcfd7 | 2011-05-10 10:02:39 -0600 | [diff] [blame] | 562 | struct pci_saved_state *pci_saved_state; |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 563 | }; |
Avi Kivity | 75858a8 | 2009-01-04 17:10:50 +0200 | [diff] [blame] | 564 | |
| 565 | struct kvm_irq_mask_notifier { |
| 566 | void (*func)(struct kvm_irq_mask_notifier *kimn, bool masked); |
| 567 | int irq; |
| 568 | struct hlist_node link; |
| 569 | }; |
| 570 | |
| 571 | void kvm_register_irq_mask_notifier(struct kvm *kvm, int irq, |
| 572 | struct kvm_irq_mask_notifier *kimn); |
| 573 | void kvm_unregister_irq_mask_notifier(struct kvm *kvm, int irq, |
| 574 | struct kvm_irq_mask_notifier *kimn); |
Gleb Natapov | 4a99435 | 2010-07-11 15:32:23 +0300 | [diff] [blame] | 575 | void kvm_fire_mask_notifiers(struct kvm *kvm, unsigned irqchip, unsigned pin, |
| 576 | bool mask); |
Avi Kivity | 75858a8 | 2009-01-04 17:10:50 +0200 | [diff] [blame] | 577 | |
Gleb Natapov | 46e624b | 2009-08-24 11:54:20 +0300 | [diff] [blame] | 578 | #ifdef __KVM_HAVE_IOAPIC |
| 579 | void kvm_get_intr_delivery_bitmask(struct kvm_ioapic *ioapic, |
| 580 | union kvm_ioapic_redirect_entry *entry, |
| 581 | unsigned long *deliver_bitmask); |
| 582 | #endif |
| 583 | 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] | 584 | int kvm_set_msi(struct kvm_kernel_irq_routing_entry *irq_entry, struct kvm *kvm, |
| 585 | int irq_source_id, int level); |
Marcelo Tosatti | 44882ee | 2009-01-27 15:12:38 -0200 | [diff] [blame] | 586 | void kvm_notify_acked_irq(struct kvm *kvm, unsigned irqchip, unsigned pin); |
Xiantao Zhang | 3de42dc | 2008-10-06 13:48:45 +0800 | [diff] [blame] | 587 | void kvm_register_irq_ack_notifier(struct kvm *kvm, |
| 588 | struct kvm_irq_ack_notifier *kian); |
Marcelo Tosatti | fa40a82 | 2009-06-04 15:08:24 -0300 | [diff] [blame] | 589 | void kvm_unregister_irq_ack_notifier(struct kvm *kvm, |
| 590 | struct kvm_irq_ack_notifier *kian); |
Sheng Yang | 5550af4 | 2008-10-15 20:15:06 +0800 | [diff] [blame] | 591 | int kvm_request_irq_source_id(struct kvm *kvm); |
| 592 | 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] | 593 | |
Sheng Yang | 522c68c | 2009-04-27 20:35:43 +0800 | [diff] [blame] | 594 | /* For vcpu->arch.iommu_flags */ |
| 595 | #define KVM_IOMMU_CACHE_COHERENCY 0x1 |
| 596 | |
Joerg Roedel | 19de40a | 2008-12-03 14:43:34 +0100 | [diff] [blame] | 597 | #ifdef CONFIG_IOMMU_API |
Marcelo Tosatti | 3ad26d8 | 2009-12-23 14:35:20 -0200 | [diff] [blame] | 598 | int kvm_iommu_map_pages(struct kvm *kvm, struct kvm_memory_slot *slot); |
Alex Williamson | 32f6daa | 2012-04-11 09:51:49 -0600 | [diff] [blame] | 599 | void kvm_iommu_unmap_pages(struct kvm *kvm, struct kvm_memory_slot *slot); |
Weidong Han | 260782b | 2008-12-02 21:03:39 +0800 | [diff] [blame] | 600 | int kvm_iommu_map_guest(struct kvm *kvm); |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 601 | int kvm_iommu_unmap_guest(struct kvm *kvm); |
Weidong Han | 260782b | 2008-12-02 21:03:39 +0800 | [diff] [blame] | 602 | int kvm_assign_device(struct kvm *kvm, |
| 603 | struct kvm_assigned_dev_kernel *assigned_dev); |
Weidong Han | 0a92035 | 2008-12-02 21:24:23 +0800 | [diff] [blame] | 604 | int kvm_deassign_device(struct kvm *kvm, |
| 605 | struct kvm_assigned_dev_kernel *assigned_dev); |
Joerg Roedel | 19de40a | 2008-12-03 14:43:34 +0100 | [diff] [blame] | 606 | #else /* CONFIG_IOMMU_API */ |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 607 | static inline int kvm_iommu_map_pages(struct kvm *kvm, |
Jan Kiszka | d7a79b6 | 2010-10-14 13:59:04 +0200 | [diff] [blame] | 608 | struct kvm_memory_slot *slot) |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 609 | { |
| 610 | return 0; |
| 611 | } |
| 612 | |
Alex Williamson | 32f6daa | 2012-04-11 09:51:49 -0600 | [diff] [blame] | 613 | static inline void kvm_iommu_unmap_pages(struct kvm *kvm, |
| 614 | struct kvm_memory_slot *slot) |
| 615 | { |
| 616 | } |
| 617 | |
Weidong Han | 260782b | 2008-12-02 21:03:39 +0800 | [diff] [blame] | 618 | static inline int kvm_iommu_map_guest(struct kvm *kvm) |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 619 | { |
| 620 | return -ENODEV; |
| 621 | } |
| 622 | |
| 623 | static inline int kvm_iommu_unmap_guest(struct kvm *kvm) |
| 624 | { |
| 625 | return 0; |
| 626 | } |
Weidong Han | 260782b | 2008-12-02 21:03:39 +0800 | [diff] [blame] | 627 | |
| 628 | static inline int kvm_assign_device(struct kvm *kvm, |
| 629 | struct kvm_assigned_dev_kernel *assigned_dev) |
| 630 | { |
| 631 | return 0; |
| 632 | } |
Weidong Han | 0a92035 | 2008-12-02 21:24:23 +0800 | [diff] [blame] | 633 | |
| 634 | static inline int kvm_deassign_device(struct kvm *kvm, |
| 635 | struct kvm_assigned_dev_kernel *assigned_dev) |
| 636 | { |
| 637 | return 0; |
| 638 | } |
Joerg Roedel | 19de40a | 2008-12-03 14:43:34 +0100 | [diff] [blame] | 639 | #endif /* CONFIG_IOMMU_API */ |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 640 | |
Laurent Vivier | d172fcd | 2007-10-15 17:00:19 +0200 | [diff] [blame] | 641 | static inline void kvm_guest_enter(void) |
| 642 | { |
Gleb Natapov | 8fa2206 | 2011-05-04 16:31:04 +0300 | [diff] [blame] | 643 | BUG_ON(preemptible()); |
Christian Borntraeger | e56a7a2 | 2007-10-18 14:39:10 +0200 | [diff] [blame] | 644 | account_system_vtime(current); |
Laurent Vivier | d172fcd | 2007-10-15 17:00:19 +0200 | [diff] [blame] | 645 | current->flags |= PF_VCPU; |
Gleb Natapov | 8fa2206 | 2011-05-04 16:31:04 +0300 | [diff] [blame] | 646 | /* KVM does not hold any references to rcu protected data when it |
| 647 | * switches CPU into a guest mode. In fact switching to a guest mode |
| 648 | * is very similar to exiting to userspase from rcu point of view. In |
| 649 | * addition CPU may stay in a guest mode for quite a long time (up to |
| 650 | * one time slice). Lets treat guest mode as quiescent state, just like |
| 651 | * we do with user-mode execution. |
| 652 | */ |
| 653 | rcu_virt_note_context_switch(smp_processor_id()); |
Laurent Vivier | d172fcd | 2007-10-15 17:00:19 +0200 | [diff] [blame] | 654 | } |
| 655 | |
| 656 | static inline void kvm_guest_exit(void) |
| 657 | { |
Christian Borntraeger | e56a7a2 | 2007-10-18 14:39:10 +0200 | [diff] [blame] | 658 | account_system_vtime(current); |
Laurent Vivier | d172fcd | 2007-10-15 17:00:19 +0200 | [diff] [blame] | 659 | current->flags &= ~PF_VCPU; |
| 660 | } |
| 661 | |
Paul Mackerras | 9d4cba7 | 2012-01-12 20:09:51 +0000 | [diff] [blame] | 662 | /* |
| 663 | * search_memslots() and __gfn_to_memslot() are here because they are |
| 664 | * used in non-modular code in arch/powerpc/kvm/book3s_hv_rm_mmu.c. |
| 665 | * gfn_to_memslot() itself isn't here as an inline because that would |
| 666 | * bloat other code too much. |
| 667 | */ |
| 668 | static inline struct kvm_memory_slot * |
| 669 | search_memslots(struct kvm_memslots *slots, gfn_t gfn) |
| 670 | { |
| 671 | struct kvm_memory_slot *memslot; |
| 672 | |
| 673 | kvm_for_each_memslot(memslot, slots) |
| 674 | if (gfn >= memslot->base_gfn && |
| 675 | gfn < memslot->base_gfn + memslot->npages) |
| 676 | return memslot; |
| 677 | |
| 678 | return NULL; |
| 679 | } |
| 680 | |
| 681 | static inline struct kvm_memory_slot * |
| 682 | __gfn_to_memslot(struct kvm_memslots *slots, gfn_t gfn) |
| 683 | { |
| 684 | return search_memslots(slots, gfn); |
| 685 | } |
| 686 | |
Xiao Guangrong | 0ee8dcb | 2011-03-09 15:41:59 +0800 | [diff] [blame] | 687 | static inline int memslot_id(struct kvm *kvm, gfn_t gfn) |
| 688 | { |
| 689 | return gfn_to_memslot(kvm, gfn)->id; |
| 690 | } |
| 691 | |
Takuya Yoshikawa | fb03cb6 | 2012-02-08 12:59:10 +0900 | [diff] [blame] | 692 | static inline gfn_t gfn_to_index(gfn_t gfn, gfn_t base_gfn, int level) |
| 693 | { |
| 694 | /* KVM_HPAGE_GFN_SHIFT(PT_PAGE_TABLE_LEVEL) must be 0. */ |
| 695 | return (gfn >> KVM_HPAGE_GFN_SHIFT(level)) - |
| 696 | (base_gfn >> KVM_HPAGE_GFN_SHIFT(level)); |
| 697 | } |
| 698 | |
Xiao Guangrong | 887c08a | 2010-08-22 19:10:28 +0800 | [diff] [blame] | 699 | static inline unsigned long gfn_to_hva_memslot(struct kvm_memory_slot *slot, |
| 700 | gfn_t gfn) |
| 701 | { |
| 702 | return slot->userspace_addr + (gfn - slot->base_gfn) * PAGE_SIZE; |
| 703 | } |
| 704 | |
Avi Kivity | 1755fbc | 2007-11-21 14:44:45 +0200 | [diff] [blame] | 705 | static inline gpa_t gfn_to_gpa(gfn_t gfn) |
| 706 | { |
| 707 | return (gpa_t)gfn << PAGE_SHIFT; |
| 708 | } |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 709 | |
Joerg Roedel | c30a358 | 2010-09-10 17:30:48 +0200 | [diff] [blame] | 710 | static inline gfn_t gpa_to_gfn(gpa_t gpa) |
| 711 | { |
| 712 | return (gfn_t)(gpa >> PAGE_SHIFT); |
| 713 | } |
| 714 | |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 715 | static inline hpa_t pfn_to_hpa(pfn_t pfn) |
| 716 | { |
| 717 | return (hpa_t)pfn << PAGE_SHIFT; |
| 718 | } |
| 719 | |
Marcelo Tosatti | 2f59971 | 2008-05-27 12:10:20 -0300 | [diff] [blame] | 720 | static inline void kvm_migrate_timers(struct kvm_vcpu *vcpu) |
Avi Kivity | 2f52d58 | 2008-01-16 12:49:30 +0200 | [diff] [blame] | 721 | { |
| 722 | set_bit(KVM_REQ_MIGRATE_TIMER, &vcpu->requests); |
| 723 | } |
| 724 | |
Avi Kivity | ba1389b | 2007-11-18 16:24:12 +0200 | [diff] [blame] | 725 | enum kvm_stat_kind { |
| 726 | KVM_STAT_VM, |
| 727 | KVM_STAT_VCPU, |
| 728 | }; |
| 729 | |
Hollis Blanchard | 417bc30 | 2007-10-31 17:24:23 -0500 | [diff] [blame] | 730 | struct kvm_stats_debugfs_item { |
| 731 | const char *name; |
| 732 | int offset; |
Avi Kivity | ba1389b | 2007-11-18 16:24:12 +0200 | [diff] [blame] | 733 | enum kvm_stat_kind kind; |
Hollis Blanchard | 417bc30 | 2007-10-31 17:24:23 -0500 | [diff] [blame] | 734 | struct dentry *dentry; |
| 735 | }; |
| 736 | extern struct kvm_stats_debugfs_item debugfs_entries[]; |
Hollis Blanchard | 76f7c87 | 2008-04-15 16:05:42 -0500 | [diff] [blame] | 737 | extern struct dentry *kvm_debugfs_dir; |
Feng(Eric) Liu | d4c9ff2 | 2008-04-10 08:47:53 -0400 | [diff] [blame] | 738 | |
Andrea Arcangeli | e930bff | 2008-07-25 16:24:52 +0200 | [diff] [blame] | 739 | #ifdef KVM_ARCH_WANT_MMU_NOTIFIER |
| 740 | static inline int mmu_notifier_retry(struct kvm_vcpu *vcpu, unsigned long mmu_seq) |
| 741 | { |
| 742 | if (unlikely(vcpu->kvm->mmu_notifier_count)) |
| 743 | return 1; |
| 744 | /* |
Paul Mackerras | a355aa5 | 2011-12-12 12:37:21 +0000 | [diff] [blame] | 745 | * Ensure the read of mmu_notifier_count happens before the read |
| 746 | * of mmu_notifier_seq. This interacts with the smp_wmb() in |
| 747 | * mmu_notifier_invalidate_range_end to make sure that the caller |
| 748 | * either sees the old (non-zero) value of mmu_notifier_count or |
| 749 | * the new (incremented) value of mmu_notifier_seq. |
| 750 | * PowerPC Book3s HV KVM calls this under a per-page lock |
| 751 | * rather than under kvm->mmu_lock, for scalability, so |
| 752 | * can't rely on kvm->mmu_lock to keep things ordered. |
Andrea Arcangeli | e930bff | 2008-07-25 16:24:52 +0200 | [diff] [blame] | 753 | */ |
Paul Mackerras | a355aa5 | 2011-12-12 12:37:21 +0000 | [diff] [blame] | 754 | smp_rmb(); |
Andrea Arcangeli | e930bff | 2008-07-25 16:24:52 +0200 | [diff] [blame] | 755 | if (vcpu->kvm->mmu_notifier_seq != mmu_seq) |
| 756 | return 1; |
| 757 | return 0; |
| 758 | } |
| 759 | #endif |
| 760 | |
Avi Kivity | 399ec80 | 2008-11-19 13:58:46 +0200 | [diff] [blame] | 761 | #ifdef CONFIG_HAVE_KVM_IRQCHIP |
| 762 | |
| 763 | #define KVM_MAX_IRQ_ROUTES 1024 |
| 764 | |
| 765 | int kvm_setup_default_irq_routing(struct kvm *kvm); |
| 766 | int kvm_set_irq_routing(struct kvm *kvm, |
| 767 | const struct kvm_irq_routing_entry *entries, |
| 768 | unsigned nr, |
| 769 | unsigned flags); |
| 770 | void kvm_free_irq_routing(struct kvm *kvm); |
| 771 | |
| 772 | #else |
| 773 | |
| 774 | static inline void kvm_free_irq_routing(struct kvm *kvm) {} |
| 775 | |
| 776 | #endif |
| 777 | |
Gregory Haskins | 721eecb | 2009-05-20 10:30:49 -0400 | [diff] [blame] | 778 | #ifdef CONFIG_HAVE_KVM_EVENTFD |
| 779 | |
Gregory Haskins | d34e6b1 | 2009-07-07 17:08:49 -0400 | [diff] [blame] | 780 | void kvm_eventfd_init(struct kvm *kvm); |
Gregory Haskins | 721eecb | 2009-05-20 10:30:49 -0400 | [diff] [blame] | 781 | int kvm_irqfd(struct kvm *kvm, int fd, int gsi, int flags); |
| 782 | void kvm_irqfd_release(struct kvm *kvm); |
Michael S. Tsirkin | bd2b53b | 2010-11-18 19:09:08 +0200 | [diff] [blame] | 783 | void kvm_irq_routing_update(struct kvm *, struct kvm_irq_routing_table *); |
Gregory Haskins | d34e6b1 | 2009-07-07 17:08:49 -0400 | [diff] [blame] | 784 | int kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args); |
Gregory Haskins | 721eecb | 2009-05-20 10:30:49 -0400 | [diff] [blame] | 785 | |
| 786 | #else |
| 787 | |
Gregory Haskins | d34e6b1 | 2009-07-07 17:08:49 -0400 | [diff] [blame] | 788 | static inline void kvm_eventfd_init(struct kvm *kvm) {} |
Michael S. Tsirkin | bd2b53b | 2010-11-18 19:09:08 +0200 | [diff] [blame] | 789 | |
Gregory Haskins | 721eecb | 2009-05-20 10:30:49 -0400 | [diff] [blame] | 790 | static inline int kvm_irqfd(struct kvm *kvm, int fd, int gsi, int flags) |
| 791 | { |
| 792 | return -EINVAL; |
| 793 | } |
| 794 | |
| 795 | static inline void kvm_irqfd_release(struct kvm *kvm) {} |
Michael S. Tsirkin | bd2b53b | 2010-11-18 19:09:08 +0200 | [diff] [blame] | 796 | |
Alexander Graf | 27923eb | 2010-11-25 10:25:44 +0100 | [diff] [blame] | 797 | #ifdef CONFIG_HAVE_KVM_IRQCHIP |
Michael S. Tsirkin | bd2b53b | 2010-11-18 19:09:08 +0200 | [diff] [blame] | 798 | static inline void kvm_irq_routing_update(struct kvm *kvm, |
| 799 | struct kvm_irq_routing_table *irq_rt) |
| 800 | { |
| 801 | rcu_assign_pointer(kvm->irq_routing, irq_rt); |
| 802 | } |
Alexander Graf | 27923eb | 2010-11-25 10:25:44 +0100 | [diff] [blame] | 803 | #endif |
Michael S. Tsirkin | bd2b53b | 2010-11-18 19:09:08 +0200 | [diff] [blame] | 804 | |
Gregory Haskins | d34e6b1 | 2009-07-07 17:08:49 -0400 | [diff] [blame] | 805 | static inline int kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args) |
| 806 | { |
| 807 | return -ENOSYS; |
| 808 | } |
Gregory Haskins | 721eecb | 2009-05-20 10:30:49 -0400 | [diff] [blame] | 809 | |
| 810 | #endif /* CONFIG_HAVE_KVM_EVENTFD */ |
| 811 | |
Gleb Natapov | 73880c8 | 2009-06-09 15:56:28 +0300 | [diff] [blame] | 812 | #ifdef CONFIG_KVM_APIC_ARCHITECTURE |
Gleb Natapov | c5af89b | 2009-06-09 15:56:26 +0300 | [diff] [blame] | 813 | static inline bool kvm_vcpu_is_bsp(struct kvm_vcpu *vcpu) |
| 814 | { |
Marcelo Tosatti | d3efc8e | 2009-06-17 10:07:59 -0300 | [diff] [blame] | 815 | return vcpu->kvm->bsp_vcpu_id == vcpu->vcpu_id; |
Gleb Natapov | c5af89b | 2009-06-09 15:56:26 +0300 | [diff] [blame] | 816 | } |
Avi Kivity | 3e51570 | 2012-03-05 14:23:29 +0200 | [diff] [blame] | 817 | |
| 818 | bool kvm_vcpu_compatible(struct kvm_vcpu *vcpu); |
| 819 | |
| 820 | #else |
| 821 | |
| 822 | static inline bool kvm_vcpu_compatible(struct kvm_vcpu *vcpu) { return true; } |
| 823 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 824 | #endif |
Avi Kivity | bfd99ff | 2009-08-26 14:57:50 +0300 | [diff] [blame] | 825 | |
| 826 | #ifdef __KVM_HAVE_DEVICE_ASSIGNMENT |
| 827 | |
| 828 | long kvm_vm_ioctl_assigned_device(struct kvm *kvm, unsigned ioctl, |
| 829 | unsigned long arg); |
| 830 | |
| 831 | #else |
| 832 | |
| 833 | static inline long kvm_vm_ioctl_assigned_device(struct kvm *kvm, unsigned ioctl, |
| 834 | unsigned long arg) |
| 835 | { |
| 836 | return -ENOTTY; |
| 837 | } |
| 838 | |
Gleb Natapov | 73880c8 | 2009-06-09 15:56:28 +0300 | [diff] [blame] | 839 | #endif |
Avi Kivity | bfd99ff | 2009-08-26 14:57:50 +0300 | [diff] [blame] | 840 | |
Avi Kivity | a8eeb04 | 2010-05-10 12:34:53 +0300 | [diff] [blame] | 841 | static inline void kvm_make_request(int req, struct kvm_vcpu *vcpu) |
| 842 | { |
| 843 | set_bit(req, &vcpu->requests); |
| 844 | } |
| 845 | |
Avi Kivity | a8eeb04 | 2010-05-10 12:34:53 +0300 | [diff] [blame] | 846 | static inline bool kvm_check_request(int req, struct kvm_vcpu *vcpu) |
| 847 | { |
Avi Kivity | 0719837 | 2010-05-10 13:08:26 +0300 | [diff] [blame] | 848 | if (test_bit(req, &vcpu->requests)) { |
| 849 | clear_bit(req, &vcpu->requests); |
| 850 | return true; |
| 851 | } else { |
| 852 | return false; |
| 853 | } |
Avi Kivity | a8eeb04 | 2010-05-10 12:34:53 +0300 | [diff] [blame] | 854 | } |
| 855 | |
Avi Kivity | bfd99ff | 2009-08-26 14:57:50 +0300 | [diff] [blame] | 856 | #endif |
| 857 | |