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> |
Alexey Dobriyan | e8edc6e | 2007-05-21 01:22:52 +0400 | [diff] [blame] | 19 | #include <asm/signal.h> |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 20 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 21 | #include <linux/kvm.h> |
Ingo Molnar | 102d832 | 2007-02-19 14:37:47 +0200 | [diff] [blame] | 22 | #include <linux/kvm_para.h> |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 23 | |
Avi Kivity | edf8841 | 2007-12-16 11:02:48 +0200 | [diff] [blame] | 24 | #include <linux/kvm_types.h> |
Hollis Blanchard | d77a39d | 2007-12-03 15:30:23 -0600 | [diff] [blame] | 25 | |
Avi Kivity | edf8841 | 2007-12-16 11:02:48 +0200 | [diff] [blame] | 26 | #include <asm/kvm_host.h> |
Zhang Xiantao | d657a98 | 2007-12-14 09:41:22 +0800 | [diff] [blame] | 27 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 28 | /* |
Avi Kivity | d9e368d | 2007-06-07 19:18:30 +0300 | [diff] [blame] | 29 | * vcpu->requests bit members |
| 30 | */ |
Avi Kivity | 3176bc3 | 2007-10-16 17:22:08 +0200 | [diff] [blame] | 31 | #define KVM_REQ_TLB_FLUSH 0 |
Avi Kivity | 2f52d58 | 2008-01-16 12:49:30 +0200 | [diff] [blame] | 32 | #define KVM_REQ_MIGRATE_TIMER 1 |
Avi Kivity | b209749f | 2007-10-22 16:50:39 +0200 | [diff] [blame] | 33 | #define KVM_REQ_REPORT_TPR_ACCESS 2 |
Marcelo Tosatti | 2e53d63 | 2008-02-20 14:47:24 -0500 | [diff] [blame] | 34 | #define KVM_REQ_MMU_RELOAD 3 |
Joerg Roedel | 71c4dfa | 2008-02-26 16:49:16 +0100 | [diff] [blame] | 35 | #define KVM_REQ_TRIPLE_FAULT 4 |
Marcelo Tosatti | 06e0564 | 2008-06-06 16:37:36 -0300 | [diff] [blame] | 36 | #define KVM_REQ_PENDING_TIMER 5 |
Marcelo Tosatti | d769017 | 2008-09-08 15:23:48 -0300 | [diff] [blame] | 37 | #define KVM_REQ_UNHALT 6 |
Marcelo Tosatti | 4731d4c | 2008-09-23 13:18:39 -0300 | [diff] [blame] | 38 | #define KVM_REQ_MMU_SYNC 7 |
Gerd Hoffmann | c807660 | 2009-02-04 17:52:04 +0100 | [diff] [blame] | 39 | #define KVM_REQ_KVMCLOCK_UPDATE 8 |
Marcelo Tosatti | 32f8840 | 2009-05-07 17:55:12 -0300 | [diff] [blame] | 40 | #define KVM_REQ_KICK 9 |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 41 | |
Sheng Yang | 5550af4 | 2008-10-15 20:15:06 +0800 | [diff] [blame] | 42 | #define KVM_USERSPACE_IRQ_SOURCE_ID 0 |
| 43 | |
Michael S. Tsirkin | 6c47469 | 2009-06-29 22:24:26 +0300 | [diff] [blame] | 44 | struct kvm; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 45 | struct kvm_vcpu; |
Rusty Russell | c16f862 | 2007-07-30 21:12:19 +1000 | [diff] [blame] | 46 | extern struct kmem_cache *kvm_vcpu_cache; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 47 | |
Gregory Haskins | 2eeb2e9 | 2007-05-31 14:08:53 -0400 | [diff] [blame] | 48 | /* |
| 49 | * It would be nice to use something smarter than a linear search, TBD... |
| 50 | * Thankfully we dont expect many devices to register (famous last words :), |
| 51 | * so until then it will suffice. At least its abstracted so we can change |
| 52 | * in one place. |
| 53 | */ |
| 54 | struct kvm_io_bus { |
| 55 | int dev_count; |
| 56 | #define NR_IOBUS_DEVS 6 |
| 57 | struct kvm_io_device *devs[NR_IOBUS_DEVS]; |
| 58 | }; |
| 59 | |
| 60 | void kvm_io_bus_init(struct kvm_io_bus *bus); |
| 61 | void kvm_io_bus_destroy(struct kvm_io_bus *bus); |
Michael S. Tsirkin | bda9020 | 2009-06-29 22:24:32 +0300 | [diff] [blame] | 62 | int kvm_io_bus_write(struct kvm_io_bus *bus, gpa_t addr, int len, |
| 63 | const void *val); |
| 64 | int kvm_io_bus_read(struct kvm_io_bus *bus, gpa_t addr, int len, |
| 65 | void *val); |
Gregory Haskins | 090b7af | 2009-07-07 17:08:44 -0400 | [diff] [blame] | 66 | int __kvm_io_bus_register_dev(struct kvm_io_bus *bus, |
Michael S. Tsirkin | 6c47469 | 2009-06-29 22:24:26 +0300 | [diff] [blame] | 67 | struct kvm_io_device *dev); |
Gregory Haskins | 090b7af | 2009-07-07 17:08:44 -0400 | [diff] [blame] | 68 | int kvm_io_bus_register_dev(struct kvm *kvm, struct kvm_io_bus *bus, |
| 69 | struct kvm_io_device *dev); |
| 70 | void __kvm_io_bus_unregister_dev(struct kvm_io_bus *bus, |
| 71 | struct kvm_io_device *dev); |
| 72 | void kvm_io_bus_unregister_dev(struct kvm *kvm, struct kvm_io_bus *bus, |
| 73 | struct kvm_io_device *dev); |
Gregory Haskins | 2eeb2e9 | 2007-05-31 14:08:53 -0400 | [diff] [blame] | 74 | |
Zhang Xiantao | d657a98 | 2007-12-14 09:41:22 +0800 | [diff] [blame] | 75 | struct kvm_vcpu { |
Zhang Xiantao | d17fbbf | 2007-12-14 09:45:31 +0800 | [diff] [blame] | 76 | struct kvm *kvm; |
Hollis Blanchard | 31bb117 | 2008-01-28 17:42:34 -0600 | [diff] [blame] | 77 | #ifdef CONFIG_PREEMPT_NOTIFIERS |
Zhang Xiantao | d17fbbf | 2007-12-14 09:45:31 +0800 | [diff] [blame] | 78 | struct preempt_notifier preempt_notifier; |
Hollis Blanchard | 31bb117 | 2008-01-28 17:42:34 -0600 | [diff] [blame] | 79 | #endif |
Zhang Xiantao | d17fbbf | 2007-12-14 09:45:31 +0800 | [diff] [blame] | 80 | int vcpu_id; |
| 81 | struct mutex mutex; |
| 82 | int cpu; |
| 83 | struct kvm_run *run; |
Zhang Xiantao | d17fbbf | 2007-12-14 09:45:31 +0800 | [diff] [blame] | 84 | unsigned long requests; |
Jan Kiszka | d0bfb94 | 2008-12-15 13:52:10 +0100 | [diff] [blame] | 85 | unsigned long guest_debug; |
Zhang Xiantao | d17fbbf | 2007-12-14 09:45:31 +0800 | [diff] [blame] | 86 | int fpu_active; |
| 87 | int guest_fpu_loaded; |
| 88 | wait_queue_head_t wq; |
| 89 | int sigset_active; |
| 90 | sigset_t sigset; |
| 91 | struct kvm_vcpu_stat stat; |
| 92 | |
| 93 | #ifdef CONFIG_HAS_IOMEM |
| 94 | int mmio_needed; |
| 95 | int mmio_read_completed; |
| 96 | int mmio_is_write; |
| 97 | int mmio_size; |
| 98 | unsigned char mmio_data[8]; |
| 99 | gpa_t mmio_phys_addr; |
| 100 | #endif |
Zhang Xiantao | d657a98 | 2007-12-14 09:41:22 +0800 | [diff] [blame] | 101 | |
| 102 | struct kvm_vcpu_arch arch; |
| 103 | }; |
| 104 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 105 | struct kvm_memory_slot { |
| 106 | gfn_t base_gfn; |
| 107 | unsigned long npages; |
| 108 | unsigned long flags; |
Izik Eidus | 290fc38 | 2007-09-27 14:11:22 +0200 | [diff] [blame] | 109 | unsigned long *rmap; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 110 | unsigned long *dirty_bitmap; |
Marcelo Tosatti | 05da455 | 2008-02-23 11:44:30 -0300 | [diff] [blame] | 111 | struct { |
| 112 | unsigned long rmap_pde; |
| 113 | int write_count; |
Joerg Roedel | ec04b26 | 2009-06-19 15:16:23 +0200 | [diff] [blame] | 114 | } *lpage_info[KVM_NR_PAGE_SIZES - 1]; |
Izik Eidus | 8a7ae05 | 2007-10-18 11:09:33 +0200 | [diff] [blame] | 115 | unsigned long userspace_addr; |
Izik Eidus | 80b14b5 | 2007-10-25 11:54:04 +0200 | [diff] [blame] | 116 | int user_alloc; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 117 | }; |
| 118 | |
Avi Kivity | 399ec80 | 2008-11-19 13:58:46 +0200 | [diff] [blame] | 119 | struct kvm_kernel_irq_routing_entry { |
| 120 | u32 gsi; |
Michael S. Tsirkin | 5116d8f | 2009-07-26 17:10:01 +0300 | [diff] [blame] | 121 | u32 type; |
Gleb Natapov | 4925663 | 2009-02-04 17:28:14 +0200 | [diff] [blame] | 122 | int (*set)(struct kvm_kernel_irq_routing_entry *e, |
Avi Kivity | 399ec80 | 2008-11-19 13:58:46 +0200 | [diff] [blame] | 123 | struct kvm *kvm, int level); |
| 124 | union { |
| 125 | struct { |
| 126 | unsigned irqchip; |
| 127 | unsigned pin; |
| 128 | } irqchip; |
Sheng Yang | 79950e1 | 2009-02-10 13:57:06 +0800 | [diff] [blame] | 129 | struct msi_msg msi; |
Avi Kivity | 399ec80 | 2008-11-19 13:58:46 +0200 | [diff] [blame] | 130 | }; |
| 131 | struct list_head link; |
| 132 | }; |
| 133 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 134 | struct kvm { |
Marcelo Tosatti | aaee2c9 | 2007-12-20 19:18:26 -0500 | [diff] [blame] | 135 | spinlock_t mmu_lock; |
Marcelo Tosatti | 8426192 | 2009-06-17 10:53:47 -0300 | [diff] [blame] | 136 | spinlock_t requests_lock; |
Izik Eidus | 72dc67a | 2008-02-10 18:04:15 +0200 | [diff] [blame] | 137 | struct rw_semaphore slots_lock; |
Avi Kivity | 6d4e4c4 | 2007-11-21 16:41:05 +0200 | [diff] [blame] | 138 | struct mm_struct *mm; /* userspace tied to this vm */ |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 139 | int nmemslots; |
Izik Eidus | e0d62c7 | 2007-10-24 23:57:46 +0200 | [diff] [blame] | 140 | struct kvm_memory_slot memslots[KVM_MEMORY_SLOTS + |
| 141 | KVM_PRIVATE_MEM_SLOTS]; |
Gleb Natapov | 73880c8 | 2009-06-09 15:56:28 +0300 | [diff] [blame] | 142 | #ifdef CONFIG_KVM_APIC_ARCHITECTURE |
| 143 | u32 bsp_vcpu_id; |
Gleb Natapov | c5af89b | 2009-06-09 15:56:26 +0300 | [diff] [blame] | 144 | struct kvm_vcpu *bsp_vcpu; |
Gleb Natapov | 73880c8 | 2009-06-09 15:56:28 +0300 | [diff] [blame] | 145 | #endif |
Rusty Russell | fb3f0f5 | 2007-07-27 17:16:56 +1000 | [diff] [blame] | 146 | struct kvm_vcpu *vcpus[KVM_MAX_VCPUS]; |
Gleb Natapov | 73880c8 | 2009-06-09 15:56:28 +0300 | [diff] [blame] | 147 | atomic_t online_vcpus; |
Avi Kivity | 133de90 | 2007-02-12 00:54:44 -0800 | [diff] [blame] | 148 | struct list_head vm_list; |
Marcelo Tosatti | 60eead7 | 2009-06-04 15:08:23 -0300 | [diff] [blame] | 149 | struct mutex lock; |
Gregory Haskins | 2eeb2e9 | 2007-05-31 14:08:53 -0400 | [diff] [blame] | 150 | struct kvm_io_bus mmio_bus; |
Eddie Dong | 7490634 | 2007-06-19 18:05:03 +0300 | [diff] [blame] | 151 | struct kvm_io_bus pio_bus; |
Gregory Haskins | 721eecb | 2009-05-20 10:30:49 -0400 | [diff] [blame] | 152 | #ifdef CONFIG_HAVE_KVM_EVENTFD |
| 153 | struct { |
| 154 | spinlock_t lock; |
| 155 | struct list_head items; |
| 156 | } irqfds; |
Gregory Haskins | d34e6b1 | 2009-07-07 17:08:49 -0400 | [diff] [blame] | 157 | struct list_head ioeventfds; |
Gregory Haskins | 721eecb | 2009-05-20 10:30:49 -0400 | [diff] [blame] | 158 | #endif |
Avi Kivity | ba1389b | 2007-11-18 16:24:12 +0200 | [diff] [blame] | 159 | struct kvm_vm_stat stat; |
Zhang Xiantao | d69fb81 | 2007-12-14 09:54:20 +0800 | [diff] [blame] | 160 | struct kvm_arch arch; |
Izik Eidus | d39f13b | 2008-03-30 16:01:25 +0300 | [diff] [blame] | 161 | atomic_t users_count; |
Laurent Vivier | 5f94c17 | 2008-05-30 16:05:54 +0200 | [diff] [blame] | 162 | #ifdef KVM_COALESCED_MMIO_PAGE_OFFSET |
| 163 | struct kvm_coalesced_mmio_dev *coalesced_mmio_dev; |
| 164 | struct kvm_coalesced_mmio_ring *coalesced_mmio_ring; |
| 165 | #endif |
Andrea Arcangeli | e930bff | 2008-07-25 16:24:52 +0200 | [diff] [blame] | 166 | |
Marcelo Tosatti | 60eead7 | 2009-06-04 15:08:23 -0300 | [diff] [blame] | 167 | struct mutex irq_lock; |
Avi Kivity | 75858a8 | 2009-01-04 17:10:50 +0200 | [diff] [blame] | 168 | #ifdef CONFIG_HAVE_KVM_IRQCHIP |
Avi Kivity | 399ec80 | 2008-11-19 13:58:46 +0200 | [diff] [blame] | 169 | struct list_head irq_routing; /* of kvm_kernel_irq_routing_entry */ |
Avi Kivity | 75858a8 | 2009-01-04 17:10:50 +0200 | [diff] [blame] | 170 | struct hlist_head mask_notifier_list; |
| 171 | #endif |
| 172 | |
Andrea Arcangeli | e930bff | 2008-07-25 16:24:52 +0200 | [diff] [blame] | 173 | #ifdef KVM_ARCH_WANT_MMU_NOTIFIER |
| 174 | struct mmu_notifier mmu_notifier; |
| 175 | unsigned long mmu_notifier_seq; |
| 176 | long mmu_notifier_count; |
| 177 | #endif |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 178 | }; |
| 179 | |
Rusty Russell | f024247 | 2007-08-01 10:48:02 +1000 | [diff] [blame] | 180 | /* The guest did something we don't support. */ |
| 181 | #define pr_unimpl(vcpu, fmt, ...) \ |
| 182 | do { \ |
| 183 | if (printk_ratelimit()) \ |
| 184 | printk(KERN_ERR "kvm: %i: cpu%i " fmt, \ |
| 185 | current->tgid, (vcpu)->vcpu_id , ## __VA_ARGS__); \ |
Mike Day | d77c26f | 2007-10-08 09:02:08 -0400 | [diff] [blame] | 186 | } while (0) |
Rusty Russell | f024247 | 2007-08-01 10:48:02 +1000 | [diff] [blame] | 187 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 188 | #define kvm_printf(kvm, fmt ...) printk(KERN_DEBUG fmt) |
| 189 | #define vcpu_printf(vcpu, fmt...) kvm_printf(vcpu->kvm, fmt) |
| 190 | |
Gleb Natapov | 988a2ca | 2009-06-09 15:56:29 +0300 | [diff] [blame] | 191 | static inline struct kvm_vcpu *kvm_get_vcpu(struct kvm *kvm, int i) |
| 192 | { |
| 193 | smp_rmb(); |
| 194 | return kvm->vcpus[i]; |
| 195 | } |
| 196 | |
| 197 | #define kvm_for_each_vcpu(idx, vcpup, kvm) \ |
| 198 | for (idx = 0, vcpup = kvm_get_vcpu(kvm, idx); \ |
| 199 | idx < atomic_read(&kvm->online_vcpus) && vcpup; \ |
| 200 | vcpup = kvm_get_vcpu(kvm, ++idx)) |
| 201 | |
Rusty Russell | fb3f0f5 | 2007-07-27 17:16:56 +1000 | [diff] [blame] | 202 | int kvm_vcpu_init(struct kvm_vcpu *vcpu, struct kvm *kvm, unsigned id); |
| 203 | void kvm_vcpu_uninit(struct kvm_vcpu *vcpu); |
| 204 | |
Carsten Otte | 313a3dc | 2007-10-11 19:16:52 +0200 | [diff] [blame] | 205 | void vcpu_load(struct kvm_vcpu *vcpu); |
| 206 | void vcpu_put(struct kvm_vcpu *vcpu); |
| 207 | |
Zhang Xiantao | f8c16bb | 2007-11-14 20:40:21 +0800 | [diff] [blame] | 208 | int kvm_init(void *opaque, unsigned int vcpu_size, |
Rusty Russell | c16f862 | 2007-07-30 21:12:19 +1000 | [diff] [blame] | 209 | struct module *module); |
Zhang Xiantao | cb498ea | 2007-11-14 20:39:31 +0800 | [diff] [blame] | 210 | void kvm_exit(void); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 211 | |
Izik Eidus | d39f13b | 2008-03-30 16:01:25 +0300 | [diff] [blame] | 212 | void kvm_get_kvm(struct kvm *kvm); |
| 213 | void kvm_put_kvm(struct kvm *kvm); |
| 214 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 215 | #define HPA_MSB ((sizeof(hpa_t) * 8) - 1) |
| 216 | #define HPA_ERR_MASK ((hpa_t)1 << HPA_MSB) |
| 217 | static inline int is_error_hpa(hpa_t hpa) { return hpa >> HPA_MSB; } |
Avi Kivity | 039576c | 2007-03-20 12:46:50 +0200 | [diff] [blame] | 218 | struct page *gva_to_page(struct kvm_vcpu *vcpu, gva_t gva); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 219 | |
Izik Eidus | cea7bb2 | 2007-10-17 19:17:48 +0200 | [diff] [blame] | 220 | extern struct page *bad_page; |
Anthony Liguori | 35149e2 | 2008-04-02 14:46:56 -0500 | [diff] [blame] | 221 | extern pfn_t bad_pfn; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 222 | |
Izik Eidus | cea7bb2 | 2007-10-17 19:17:48 +0200 | [diff] [blame] | 223 | int is_error_page(struct page *page); |
Anthony Liguori | 35149e2 | 2008-04-02 14:46:56 -0500 | [diff] [blame] | 224 | int is_error_pfn(pfn_t pfn); |
Izik Eidus | f9d46eb | 2007-11-11 22:02:22 +0200 | [diff] [blame] | 225 | int kvm_is_error_hva(unsigned long addr); |
Izik Eidus | 210c7c4 | 2007-10-24 23:52:57 +0200 | [diff] [blame] | 226 | int kvm_set_memory_region(struct kvm *kvm, |
| 227 | struct kvm_userspace_memory_region *mem, |
| 228 | int user_alloc); |
Sheng Yang | f78e0e2 | 2007-10-29 09:40:42 +0800 | [diff] [blame] | 229 | int __kvm_set_memory_region(struct kvm *kvm, |
| 230 | struct kvm_userspace_memory_region *mem, |
| 231 | int user_alloc); |
Zhang Xiantao | 0de1034 | 2007-11-20 16:25:04 +0800 | [diff] [blame] | 232 | int kvm_arch_set_memory_region(struct kvm *kvm, |
| 233 | struct kvm_userspace_memory_region *mem, |
| 234 | struct kvm_memory_slot old, |
| 235 | int user_alloc); |
Marcelo Tosatti | 54dee99 | 2009-06-11 12:07:44 -0300 | [diff] [blame] | 236 | void kvm_disable_largepages(void); |
Marcelo Tosatti | 34d4cb8 | 2008-07-10 20:49:31 -0300 | [diff] [blame] | 237 | void kvm_arch_flush_shadow(struct kvm *kvm); |
Izik Eidus | 290fc38 | 2007-09-27 14:11:22 +0200 | [diff] [blame] | 238 | gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn); |
Avi Kivity | 954bbbc2 | 2007-03-30 14:02:32 +0300 | [diff] [blame] | 239 | struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn); |
Marcelo Tosatti | 05da455 | 2008-02-23 11:44:30 -0300 | [diff] [blame] | 240 | unsigned long gfn_to_hva(struct kvm *kvm, gfn_t gfn); |
Izik Eidus | b4231d6 | 2007-11-20 11:49:33 +0200 | [diff] [blame] | 241 | void kvm_release_page_clean(struct page *page); |
| 242 | void kvm_release_page_dirty(struct page *page); |
Anthony Liguori | 35149e2 | 2008-04-02 14:46:56 -0500 | [diff] [blame] | 243 | void kvm_set_page_dirty(struct page *page); |
| 244 | void kvm_set_page_accessed(struct page *page); |
| 245 | |
| 246 | pfn_t gfn_to_pfn(struct kvm *kvm, gfn_t gfn); |
| 247 | void kvm_release_pfn_dirty(pfn_t); |
| 248 | void kvm_release_pfn_clean(pfn_t pfn); |
| 249 | void kvm_set_pfn_dirty(pfn_t pfn); |
| 250 | void kvm_set_pfn_accessed(pfn_t pfn); |
| 251 | void kvm_get_pfn(pfn_t pfn); |
| 252 | |
Izik Eidus | 195aefd | 2007-10-01 22:14:18 +0200 | [diff] [blame] | 253 | int kvm_read_guest_page(struct kvm *kvm, gfn_t gfn, void *data, int offset, |
| 254 | int len); |
Marcelo Tosatti | 7ec5458 | 2007-12-20 19:18:23 -0500 | [diff] [blame] | 255 | int kvm_read_guest_atomic(struct kvm *kvm, gpa_t gpa, void *data, |
| 256 | unsigned long len); |
Izik Eidus | 195aefd | 2007-10-01 22:14:18 +0200 | [diff] [blame] | 257 | int kvm_read_guest(struct kvm *kvm, gpa_t gpa, void *data, unsigned long len); |
| 258 | int kvm_write_guest_page(struct kvm *kvm, gfn_t gfn, const void *data, |
| 259 | int offset, int len); |
| 260 | int kvm_write_guest(struct kvm *kvm, gpa_t gpa, const void *data, |
| 261 | unsigned long len); |
| 262 | int kvm_clear_guest_page(struct kvm *kvm, gfn_t gfn, int offset, int len); |
| 263 | 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] | 264 | 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] | 265 | int kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 266 | void mark_page_dirty(struct kvm *kvm, gfn_t gfn); |
| 267 | |
Hollis Blanchard | 8776e51 | 2007-10-31 17:24:24 -0500 | [diff] [blame] | 268 | void kvm_vcpu_block(struct kvm_vcpu *vcpu); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 269 | void kvm_resched(struct kvm_vcpu *vcpu); |
Avi Kivity | 7702fd1 | 2007-06-14 16:27:40 +0300 | [diff] [blame] | 270 | void kvm_load_guest_fpu(struct kvm_vcpu *vcpu); |
| 271 | void kvm_put_guest_fpu(struct kvm_vcpu *vcpu); |
Avi Kivity | d9e368d | 2007-06-07 19:18:30 +0300 | [diff] [blame] | 272 | void kvm_flush_remote_tlbs(struct kvm *kvm); |
Marcelo Tosatti | 2e53d63 | 2008-02-20 14:47:24 -0500 | [diff] [blame] | 273 | void kvm_reload_remote_mmus(struct kvm *kvm); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 274 | |
Carsten Otte | 043405e | 2007-10-10 17:16:19 +0200 | [diff] [blame] | 275 | long kvm_arch_dev_ioctl(struct file *filp, |
| 276 | unsigned int ioctl, unsigned long arg); |
Carsten Otte | 313a3dc | 2007-10-11 19:16:52 +0200 | [diff] [blame] | 277 | long kvm_arch_vcpu_ioctl(struct file *filp, |
| 278 | unsigned int ioctl, unsigned long arg); |
Zhang Xiantao | 018d00d | 2007-11-15 23:07:47 +0800 | [diff] [blame] | 279 | |
| 280 | int kvm_dev_ioctl_check_extension(long ext); |
| 281 | |
Zhang Xiantao | 5bb064d | 2007-11-18 20:29:43 +0800 | [diff] [blame] | 282 | int kvm_get_dirty_log(struct kvm *kvm, |
| 283 | struct kvm_dirty_log *log, int *is_dirty); |
| 284 | int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, |
| 285 | struct kvm_dirty_log *log); |
| 286 | |
Carsten Otte | 1fe779f | 2007-10-29 16:08:35 +0100 | [diff] [blame] | 287 | int kvm_vm_ioctl_set_memory_region(struct kvm *kvm, |
| 288 | struct |
| 289 | kvm_userspace_memory_region *mem, |
| 290 | int user_alloc); |
| 291 | long kvm_arch_vm_ioctl(struct file *filp, |
| 292 | unsigned int ioctl, unsigned long arg); |
Carsten Otte | 313a3dc | 2007-10-11 19:16:52 +0200 | [diff] [blame] | 293 | |
Hollis Blanchard | d075206 | 2007-10-31 17:24:25 -0500 | [diff] [blame] | 294 | int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu); |
| 295 | int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu); |
| 296 | |
Zhang Xiantao | 8b00679 | 2007-11-16 13:05:55 +0800 | [diff] [blame] | 297 | int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu, |
| 298 | struct kvm_translation *tr); |
| 299 | |
Hollis Blanchard | b6c7a5d | 2007-11-01 14:16:10 -0500 | [diff] [blame] | 300 | int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs); |
| 301 | int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs); |
| 302 | int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu, |
| 303 | struct kvm_sregs *sregs); |
| 304 | int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu, |
| 305 | struct kvm_sregs *sregs); |
Marcelo Tosatti | 62d9f0d | 2008-04-11 13:24:45 -0300 | [diff] [blame] | 306 | int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu, |
| 307 | struct kvm_mp_state *mp_state); |
| 308 | int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, |
| 309 | struct kvm_mp_state *mp_state); |
Jan Kiszka | d0bfb94 | 2008-12-15 13:52:10 +0100 | [diff] [blame] | 310 | int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu, |
| 311 | struct kvm_guest_debug *dbg); |
Hollis Blanchard | b6c7a5d | 2007-11-01 14:16:10 -0500 | [diff] [blame] | 312 | int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run); |
| 313 | |
Zhang Xiantao | f8c16bb | 2007-11-14 20:40:21 +0800 | [diff] [blame] | 314 | int kvm_arch_init(void *opaque); |
| 315 | void kvm_arch_exit(void); |
Carsten Otte | 043405e | 2007-10-10 17:16:19 +0200 | [diff] [blame] | 316 | |
Zhang Xiantao | e9b11c1 | 2007-11-14 20:38:21 +0800 | [diff] [blame] | 317 | int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu); |
| 318 | void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu); |
| 319 | |
| 320 | void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu); |
| 321 | void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu); |
| 322 | void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu); |
| 323 | 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] | 324 | int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu); |
Hollis Blanchard | d40ccc6 | 2007-11-19 14:04:43 -0600 | [diff] [blame] | 325 | void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu); |
Zhang Xiantao | e9b11c1 | 2007-11-14 20:38:21 +0800 | [diff] [blame] | 326 | |
| 327 | int kvm_arch_vcpu_reset(struct kvm_vcpu *vcpu); |
| 328 | void kvm_arch_hardware_enable(void *garbage); |
| 329 | void kvm_arch_hardware_disable(void *garbage); |
| 330 | int kvm_arch_hardware_setup(void); |
| 331 | void kvm_arch_hardware_unsetup(void); |
| 332 | void kvm_arch_check_processor_compat(void *rtn); |
Zhang Xiantao | 1d737c8 | 2007-12-14 09:35:10 +0800 | [diff] [blame] | 333 | int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu); |
Zhang Xiantao | e9b11c1 | 2007-11-14 20:38:21 +0800 | [diff] [blame] | 334 | |
Zhang Xiantao | d19a9cd | 2007-11-18 18:43:45 +0800 | [diff] [blame] | 335 | void kvm_free_physmem(struct kvm *kvm); |
| 336 | |
| 337 | struct kvm *kvm_arch_create_vm(void); |
| 338 | void kvm_arch_destroy_vm(struct kvm *kvm); |
Xiantao Zhang | 8a98f66 | 2008-10-06 13:47:38 +0800 | [diff] [blame] | 339 | void kvm_free_all_assigned_devices(struct kvm *kvm); |
Sheng Yang | ad8ba2c | 2009-01-06 10:03:02 +0800 | [diff] [blame] | 340 | void kvm_arch_sync_events(struct kvm *kvm); |
Zhang Xiantao | e9b11c1 | 2007-11-14 20:38:21 +0800 | [diff] [blame] | 341 | |
Marcelo Tosatti | 3d80840 | 2008-04-11 14:53:26 -0300 | [diff] [blame] | 342 | int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu); |
Zhang Xiantao | 5736199 | 2007-12-17 14:21:40 +0800 | [diff] [blame] | 343 | void kvm_vcpu_kick(struct kvm_vcpu *vcpu); |
Zhang Xiantao | 682c59a | 2007-12-11 20:36:00 +0800 | [diff] [blame] | 344 | |
Xiantao Zhang | c77fb9d | 2008-09-27 10:55:40 +0800 | [diff] [blame] | 345 | int kvm_is_mmio_pfn(pfn_t pfn); |
| 346 | |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 347 | struct kvm_irq_ack_notifier { |
| 348 | struct hlist_node link; |
| 349 | unsigned gsi; |
| 350 | void (*irq_acked)(struct kvm_irq_ack_notifier *kian); |
| 351 | }; |
| 352 | |
Sheng Yang | 2350bd1 | 2009-02-25 17:22:27 +0800 | [diff] [blame] | 353 | #define KVM_ASSIGNED_MSIX_PENDING 0x1 |
Sheng Yang | c1e0151 | 2009-02-25 17:22:26 +0800 | [diff] [blame] | 354 | struct kvm_guest_msix_entry { |
| 355 | u32 vector; |
| 356 | u16 entry; |
| 357 | u16 flags; |
| 358 | }; |
| 359 | |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 360 | struct kvm_assigned_dev_kernel { |
| 361 | struct kvm_irq_ack_notifier ack_notifier; |
| 362 | struct work_struct interrupt_work; |
| 363 | struct list_head list; |
| 364 | int assigned_dev_id; |
| 365 | int host_busnr; |
| 366 | int host_devfn; |
Sheng Yang | c1e0151 | 2009-02-25 17:22:26 +0800 | [diff] [blame] | 367 | unsigned int entries_nr; |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 368 | int host_irq; |
Mark McLoughlin | defaf15 | 2008-12-02 12:16:33 +0000 | [diff] [blame] | 369 | bool host_irq_disabled; |
Sheng Yang | c1e0151 | 2009-02-25 17:22:26 +0800 | [diff] [blame] | 370 | struct msix_entry *host_msix_entries; |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 371 | int guest_irq; |
Sheng Yang | c1e0151 | 2009-02-25 17:22:26 +0800 | [diff] [blame] | 372 | struct kvm_guest_msix_entry *guest_msix_entries; |
Sheng Yang | 4f906c1 | 2008-11-24 14:32:51 +0800 | [diff] [blame] | 373 | unsigned long irq_requested_type; |
Sheng Yang | 5550af4 | 2008-10-15 20:15:06 +0800 | [diff] [blame] | 374 | int irq_source_id; |
Weidong Han | b653574 | 2008-12-08 23:29:53 +0800 | [diff] [blame] | 375 | int flags; |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 376 | struct pci_dev *dev; |
| 377 | struct kvm *kvm; |
Marcelo Tosatti | 547de29 | 2009-05-07 17:55:13 -0300 | [diff] [blame] | 378 | spinlock_t assigned_dev_lock; |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 379 | }; |
Avi Kivity | 75858a8 | 2009-01-04 17:10:50 +0200 | [diff] [blame] | 380 | |
| 381 | struct kvm_irq_mask_notifier { |
| 382 | void (*func)(struct kvm_irq_mask_notifier *kimn, bool masked); |
| 383 | int irq; |
| 384 | struct hlist_node link; |
| 385 | }; |
| 386 | |
| 387 | void kvm_register_irq_mask_notifier(struct kvm *kvm, int irq, |
| 388 | struct kvm_irq_mask_notifier *kimn); |
| 389 | void kvm_unregister_irq_mask_notifier(struct kvm *kvm, int irq, |
| 390 | struct kvm_irq_mask_notifier *kimn); |
| 391 | void kvm_fire_mask_notifiers(struct kvm *kvm, int irq, bool mask); |
| 392 | |
Gleb Natapov | 4925663 | 2009-02-04 17:28:14 +0200 | [diff] [blame] | 393 | int kvm_set_irq(struct kvm *kvm, int irq_source_id, int irq, int level); |
Marcelo Tosatti | 44882ee | 2009-01-27 15:12:38 -0200 | [diff] [blame] | 394 | void kvm_notify_acked_irq(struct kvm *kvm, unsigned irqchip, unsigned pin); |
Xiantao Zhang | 3de42dc | 2008-10-06 13:48:45 +0800 | [diff] [blame] | 395 | void kvm_register_irq_ack_notifier(struct kvm *kvm, |
| 396 | struct kvm_irq_ack_notifier *kian); |
Marcelo Tosatti | fa40a82 | 2009-06-04 15:08:24 -0300 | [diff] [blame] | 397 | void kvm_unregister_irq_ack_notifier(struct kvm *kvm, |
| 398 | struct kvm_irq_ack_notifier *kian); |
Sheng Yang | 5550af4 | 2008-10-15 20:15:06 +0800 | [diff] [blame] | 399 | int kvm_request_irq_source_id(struct kvm *kvm); |
| 400 | 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] | 401 | |
Sheng Yang | 522c68c | 2009-04-27 20:35:43 +0800 | [diff] [blame] | 402 | /* For vcpu->arch.iommu_flags */ |
| 403 | #define KVM_IOMMU_CACHE_COHERENCY 0x1 |
| 404 | |
Joerg Roedel | 19de40a | 2008-12-03 14:43:34 +0100 | [diff] [blame] | 405 | #ifdef CONFIG_IOMMU_API |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 406 | int kvm_iommu_map_pages(struct kvm *kvm, gfn_t base_gfn, |
| 407 | unsigned long npages); |
Weidong Han | 260782b | 2008-12-02 21:03:39 +0800 | [diff] [blame] | 408 | int kvm_iommu_map_guest(struct kvm *kvm); |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 409 | int kvm_iommu_unmap_guest(struct kvm *kvm); |
Weidong Han | 260782b | 2008-12-02 21:03:39 +0800 | [diff] [blame] | 410 | int kvm_assign_device(struct kvm *kvm, |
| 411 | struct kvm_assigned_dev_kernel *assigned_dev); |
Weidong Han | 0a92035 | 2008-12-02 21:24:23 +0800 | [diff] [blame] | 412 | int kvm_deassign_device(struct kvm *kvm, |
| 413 | struct kvm_assigned_dev_kernel *assigned_dev); |
Joerg Roedel | 19de40a | 2008-12-03 14:43:34 +0100 | [diff] [blame] | 414 | #else /* CONFIG_IOMMU_API */ |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 415 | static inline int kvm_iommu_map_pages(struct kvm *kvm, |
| 416 | gfn_t base_gfn, |
| 417 | unsigned long npages) |
| 418 | { |
| 419 | return 0; |
| 420 | } |
| 421 | |
Weidong Han | 260782b | 2008-12-02 21:03:39 +0800 | [diff] [blame] | 422 | static inline int kvm_iommu_map_guest(struct kvm *kvm) |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 423 | { |
| 424 | return -ENODEV; |
| 425 | } |
| 426 | |
| 427 | static inline int kvm_iommu_unmap_guest(struct kvm *kvm) |
| 428 | { |
| 429 | return 0; |
| 430 | } |
Weidong Han | 260782b | 2008-12-02 21:03:39 +0800 | [diff] [blame] | 431 | |
| 432 | static inline int kvm_assign_device(struct kvm *kvm, |
| 433 | struct kvm_assigned_dev_kernel *assigned_dev) |
| 434 | { |
| 435 | return 0; |
| 436 | } |
Weidong Han | 0a92035 | 2008-12-02 21:24:23 +0800 | [diff] [blame] | 437 | |
| 438 | static inline int kvm_deassign_device(struct kvm *kvm, |
| 439 | struct kvm_assigned_dev_kernel *assigned_dev) |
| 440 | { |
| 441 | return 0; |
| 442 | } |
Joerg Roedel | 19de40a | 2008-12-03 14:43:34 +0100 | [diff] [blame] | 443 | #endif /* CONFIG_IOMMU_API */ |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 444 | |
Laurent Vivier | d172fcd | 2007-10-15 17:00:19 +0200 | [diff] [blame] | 445 | static inline void kvm_guest_enter(void) |
| 446 | { |
Christian Borntraeger | e56a7a2 | 2007-10-18 14:39:10 +0200 | [diff] [blame] | 447 | account_system_vtime(current); |
Laurent Vivier | d172fcd | 2007-10-15 17:00:19 +0200 | [diff] [blame] | 448 | current->flags |= PF_VCPU; |
| 449 | } |
| 450 | |
| 451 | static inline void kvm_guest_exit(void) |
| 452 | { |
Christian Borntraeger | e56a7a2 | 2007-10-18 14:39:10 +0200 | [diff] [blame] | 453 | account_system_vtime(current); |
Laurent Vivier | d172fcd | 2007-10-15 17:00:19 +0200 | [diff] [blame] | 454 | current->flags &= ~PF_VCPU; |
| 455 | } |
| 456 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 457 | static inline int memslot_id(struct kvm *kvm, struct kvm_memory_slot *slot) |
| 458 | { |
| 459 | return slot - kvm->memslots; |
| 460 | } |
| 461 | |
Avi Kivity | 1755fbc | 2007-11-21 14:44:45 +0200 | [diff] [blame] | 462 | static inline gpa_t gfn_to_gpa(gfn_t gfn) |
| 463 | { |
| 464 | return (gpa_t)gfn << PAGE_SHIFT; |
| 465 | } |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 466 | |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 467 | static inline hpa_t pfn_to_hpa(pfn_t pfn) |
| 468 | { |
| 469 | return (hpa_t)pfn << PAGE_SHIFT; |
| 470 | } |
| 471 | |
Marcelo Tosatti | 2f59971 | 2008-05-27 12:10:20 -0300 | [diff] [blame] | 472 | static inline void kvm_migrate_timers(struct kvm_vcpu *vcpu) |
Avi Kivity | 2f52d58 | 2008-01-16 12:49:30 +0200 | [diff] [blame] | 473 | { |
| 474 | set_bit(KVM_REQ_MIGRATE_TIMER, &vcpu->requests); |
| 475 | } |
| 476 | |
Avi Kivity | ba1389b | 2007-11-18 16:24:12 +0200 | [diff] [blame] | 477 | enum kvm_stat_kind { |
| 478 | KVM_STAT_VM, |
| 479 | KVM_STAT_VCPU, |
| 480 | }; |
| 481 | |
Hollis Blanchard | 417bc30 | 2007-10-31 17:24:23 -0500 | [diff] [blame] | 482 | struct kvm_stats_debugfs_item { |
| 483 | const char *name; |
| 484 | int offset; |
Avi Kivity | ba1389b | 2007-11-18 16:24:12 +0200 | [diff] [blame] | 485 | enum kvm_stat_kind kind; |
Hollis Blanchard | 417bc30 | 2007-10-31 17:24:23 -0500 | [diff] [blame] | 486 | struct dentry *dentry; |
| 487 | }; |
| 488 | extern struct kvm_stats_debugfs_item debugfs_entries[]; |
Hollis Blanchard | 76f7c87 | 2008-04-15 16:05:42 -0500 | [diff] [blame] | 489 | extern struct dentry *kvm_debugfs_dir; |
Feng(Eric) Liu | d4c9ff2 | 2008-04-10 08:47:53 -0400 | [diff] [blame] | 490 | |
Andrea Arcangeli | e930bff | 2008-07-25 16:24:52 +0200 | [diff] [blame] | 491 | #ifdef KVM_ARCH_WANT_MMU_NOTIFIER |
| 492 | static inline int mmu_notifier_retry(struct kvm_vcpu *vcpu, unsigned long mmu_seq) |
| 493 | { |
| 494 | if (unlikely(vcpu->kvm->mmu_notifier_count)) |
| 495 | return 1; |
| 496 | /* |
| 497 | * Both reads happen under the mmu_lock and both values are |
| 498 | * modified under mmu_lock, so there's no need of smb_rmb() |
| 499 | * here in between, otherwise mmu_notifier_count should be |
| 500 | * read before mmu_notifier_seq, see |
| 501 | * mmu_notifier_invalidate_range_end write side. |
| 502 | */ |
| 503 | if (vcpu->kvm->mmu_notifier_seq != mmu_seq) |
| 504 | return 1; |
| 505 | return 0; |
| 506 | } |
| 507 | #endif |
| 508 | |
Avi Kivity | 399ec80 | 2008-11-19 13:58:46 +0200 | [diff] [blame] | 509 | #ifdef CONFIG_HAVE_KVM_IRQCHIP |
| 510 | |
| 511 | #define KVM_MAX_IRQ_ROUTES 1024 |
| 512 | |
| 513 | int kvm_setup_default_irq_routing(struct kvm *kvm); |
| 514 | int kvm_set_irq_routing(struct kvm *kvm, |
| 515 | const struct kvm_irq_routing_entry *entries, |
| 516 | unsigned nr, |
| 517 | unsigned flags); |
| 518 | void kvm_free_irq_routing(struct kvm *kvm); |
| 519 | |
| 520 | #else |
| 521 | |
| 522 | static inline void kvm_free_irq_routing(struct kvm *kvm) {} |
| 523 | |
| 524 | #endif |
| 525 | |
Gregory Haskins | 721eecb | 2009-05-20 10:30:49 -0400 | [diff] [blame] | 526 | #ifdef CONFIG_HAVE_KVM_EVENTFD |
| 527 | |
Gregory Haskins | d34e6b1 | 2009-07-07 17:08:49 -0400 | [diff] [blame] | 528 | void kvm_eventfd_init(struct kvm *kvm); |
Gregory Haskins | 721eecb | 2009-05-20 10:30:49 -0400 | [diff] [blame] | 529 | int kvm_irqfd(struct kvm *kvm, int fd, int gsi, int flags); |
| 530 | void kvm_irqfd_release(struct kvm *kvm); |
Gregory Haskins | d34e6b1 | 2009-07-07 17:08:49 -0400 | [diff] [blame] | 531 | int kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args); |
Gregory Haskins | 721eecb | 2009-05-20 10:30:49 -0400 | [diff] [blame] | 532 | |
| 533 | #else |
| 534 | |
Gregory Haskins | d34e6b1 | 2009-07-07 17:08:49 -0400 | [diff] [blame] | 535 | static inline void kvm_eventfd_init(struct kvm *kvm) {} |
Gregory Haskins | 721eecb | 2009-05-20 10:30:49 -0400 | [diff] [blame] | 536 | static inline int kvm_irqfd(struct kvm *kvm, int fd, int gsi, int flags) |
| 537 | { |
| 538 | return -EINVAL; |
| 539 | } |
| 540 | |
| 541 | static inline void kvm_irqfd_release(struct kvm *kvm) {} |
Gregory Haskins | d34e6b1 | 2009-07-07 17:08:49 -0400 | [diff] [blame] | 542 | static inline int kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args) |
| 543 | { |
| 544 | return -ENOSYS; |
| 545 | } |
Gregory Haskins | 721eecb | 2009-05-20 10:30:49 -0400 | [diff] [blame] | 546 | |
| 547 | #endif /* CONFIG_HAVE_KVM_EVENTFD */ |
| 548 | |
Gleb Natapov | 73880c8 | 2009-06-09 15:56:28 +0300 | [diff] [blame] | 549 | #ifdef CONFIG_KVM_APIC_ARCHITECTURE |
Gleb Natapov | c5af89b | 2009-06-09 15:56:26 +0300 | [diff] [blame] | 550 | static inline bool kvm_vcpu_is_bsp(struct kvm_vcpu *vcpu) |
| 551 | { |
Marcelo Tosatti | d3efc8e | 2009-06-17 10:07:59 -0300 | [diff] [blame] | 552 | return vcpu->kvm->bsp_vcpu_id == vcpu->vcpu_id; |
Gleb Natapov | c5af89b | 2009-06-09 15:56:26 +0300 | [diff] [blame] | 553 | } |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 554 | #endif |
Gleb Natapov | 73880c8 | 2009-06-09 15:56:28 +0300 | [diff] [blame] | 555 | #endif |