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> |
Xiao Guangrong | 83f0922 | 2012-08-03 15:39:59 +0800 | [diff] [blame] | 24 | #include <linux/err.h> |
Frederic Weisbecker | c11f11f | 2013-01-21 00:50:22 +0100 | [diff] [blame] | 25 | #include <linux/irqflags.h> |
Frederic Weisbecker | 521921b | 2013-05-16 01:21:38 +0200 | [diff] [blame] | 26 | #include <linux/context_tracking.h> |
Alexey Dobriyan | e8edc6e | 2007-05-21 01:22:52 +0400 | [diff] [blame] | 27 | #include <asm/signal.h> |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 28 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 29 | #include <linux/kvm.h> |
Ingo Molnar | 102d832 | 2007-02-19 14:37:47 +0200 | [diff] [blame] | 30 | #include <linux/kvm_para.h> |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 31 | |
Avi Kivity | edf8841 | 2007-12-16 11:02:48 +0200 | [diff] [blame] | 32 | #include <linux/kvm_types.h> |
Hollis Blanchard | d77a39d | 2007-12-03 15:30:23 -0600 | [diff] [blame] | 33 | |
Avi Kivity | edf8841 | 2007-12-16 11:02:48 +0200 | [diff] [blame] | 34 | #include <asm/kvm_host.h> |
Zhang Xiantao | d657a98 | 2007-12-14 09:41:22 +0800 | [diff] [blame] | 35 | |
Avi Kivity | cef4dea | 2010-01-20 12:01:20 +0200 | [diff] [blame] | 36 | #ifndef KVM_MMIO_SIZE |
| 37 | #define KVM_MMIO_SIZE 8 |
| 38 | #endif |
| 39 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 40 | /* |
Xiao Guangrong | 67b2920 | 2012-08-21 10:58:45 +0800 | [diff] [blame] | 41 | * The bit 16 ~ bit 31 of kvm_memory_region::flags are internally used |
| 42 | * in kvm, other bits are visible for userspace which are defined in |
| 43 | * include/linux/kvm_h. |
| 44 | */ |
| 45 | #define KVM_MEMSLOT_INVALID (1UL << 16) |
| 46 | |
Xiao Guangrong | 87da7e6 | 2012-10-24 14:07:59 +0800 | [diff] [blame] | 47 | /* Two fragments for cross MMIO pages. */ |
| 48 | #define KVM_MAX_MMIO_FRAGMENTS 2 |
Avi Kivity | f78146b | 2012-04-18 19:22:47 +0300 | [diff] [blame] | 49 | |
| 50 | /* |
Xiao Guangrong | 9c5b117 | 2012-08-03 15:43:51 +0800 | [diff] [blame] | 51 | * For the normal pfn, the highest 12 bits should be zero, |
Xiao Guangrong | 81c52c5 | 2012-10-16 20:10:59 +0800 | [diff] [blame] | 52 | * so we can mask bit 62 ~ bit 52 to indicate the error pfn, |
| 53 | * mask bit 63 to indicate the noslot pfn. |
Xiao Guangrong | 9c5b117 | 2012-08-03 15:43:51 +0800 | [diff] [blame] | 54 | */ |
Xiao Guangrong | 81c52c5 | 2012-10-16 20:10:59 +0800 | [diff] [blame] | 55 | #define KVM_PFN_ERR_MASK (0x7ffULL << 52) |
| 56 | #define KVM_PFN_ERR_NOSLOT_MASK (0xfffULL << 52) |
| 57 | #define KVM_PFN_NOSLOT (0x1ULL << 63) |
Xiao Guangrong | 6c8ee57 | 2012-08-03 15:37:54 +0800 | [diff] [blame] | 58 | |
Xiao Guangrong | 9c5b117 | 2012-08-03 15:43:51 +0800 | [diff] [blame] | 59 | #define KVM_PFN_ERR_FAULT (KVM_PFN_ERR_MASK) |
| 60 | #define KVM_PFN_ERR_HWPOISON (KVM_PFN_ERR_MASK + 1) |
Xiao Guangrong | 81c52c5 | 2012-10-16 20:10:59 +0800 | [diff] [blame] | 61 | #define KVM_PFN_ERR_RO_FAULT (KVM_PFN_ERR_MASK + 2) |
Xiao Guangrong | 9c5b117 | 2012-08-03 15:43:51 +0800 | [diff] [blame] | 62 | |
Xiao Guangrong | 81c52c5 | 2012-10-16 20:10:59 +0800 | [diff] [blame] | 63 | /* |
| 64 | * error pfns indicate that the gfn is in slot but faild to |
| 65 | * translate it to pfn on host. |
| 66 | */ |
Xiao Guangrong | 9c5b117 | 2012-08-03 15:43:51 +0800 | [diff] [blame] | 67 | static inline bool is_error_pfn(pfn_t pfn) |
Xiao Guangrong | 83f0922 | 2012-08-03 15:39:59 +0800 | [diff] [blame] | 68 | { |
Xiao Guangrong | 9c5b117 | 2012-08-03 15:43:51 +0800 | [diff] [blame] | 69 | return !!(pfn & KVM_PFN_ERR_MASK); |
Xiao Guangrong | 83f0922 | 2012-08-03 15:39:59 +0800 | [diff] [blame] | 70 | } |
| 71 | |
Xiao Guangrong | 81c52c5 | 2012-10-16 20:10:59 +0800 | [diff] [blame] | 72 | /* |
| 73 | * error_noslot pfns indicate that the gfn can not be |
| 74 | * translated to pfn - it is not in slot or failed to |
| 75 | * translate it to pfn. |
| 76 | */ |
| 77 | static inline bool is_error_noslot_pfn(pfn_t pfn) |
Xiao Guangrong | 83f0922 | 2012-08-03 15:39:59 +0800 | [diff] [blame] | 78 | { |
Xiao Guangrong | 81c52c5 | 2012-10-16 20:10:59 +0800 | [diff] [blame] | 79 | return !!(pfn & KVM_PFN_ERR_NOSLOT_MASK); |
Xiao Guangrong | 83f0922 | 2012-08-03 15:39:59 +0800 | [diff] [blame] | 80 | } |
| 81 | |
Xiao Guangrong | 81c52c5 | 2012-10-16 20:10:59 +0800 | [diff] [blame] | 82 | /* noslot pfn indicates that the gfn is not in slot. */ |
| 83 | static inline bool is_noslot_pfn(pfn_t pfn) |
Xiao Guangrong | 83f0922 | 2012-08-03 15:39:59 +0800 | [diff] [blame] | 84 | { |
Xiao Guangrong | 81c52c5 | 2012-10-16 20:10:59 +0800 | [diff] [blame] | 85 | return pfn == KVM_PFN_NOSLOT; |
Xiao Guangrong | 83f0922 | 2012-08-03 15:39:59 +0800 | [diff] [blame] | 86 | } |
| 87 | |
Dominik Dingel | bf64087 | 2013-07-26 15:04:07 +0200 | [diff] [blame] | 88 | /* |
| 89 | * architectures with KVM_HVA_ERR_BAD other than PAGE_OFFSET (e.g. s390) |
| 90 | * provide own defines and kvm_is_error_hva |
| 91 | */ |
| 92 | #ifndef KVM_HVA_ERR_BAD |
| 93 | |
Xiao Guangrong | 7068d09 | 2012-08-21 11:02:22 +0800 | [diff] [blame] | 94 | #define KVM_HVA_ERR_BAD (PAGE_OFFSET) |
| 95 | #define KVM_HVA_ERR_RO_BAD (PAGE_OFFSET + PAGE_SIZE) |
Xiao Guangrong | ca3a490 | 2012-08-21 11:01:50 +0800 | [diff] [blame] | 96 | |
| 97 | static inline bool kvm_is_error_hva(unsigned long addr) |
| 98 | { |
Xiao Guangrong | 7068d09 | 2012-08-21 11:02:22 +0800 | [diff] [blame] | 99 | return addr >= PAGE_OFFSET; |
Xiao Guangrong | ca3a490 | 2012-08-21 11:01:50 +0800 | [diff] [blame] | 100 | } |
| 101 | |
Dominik Dingel | bf64087 | 2013-07-26 15:04:07 +0200 | [diff] [blame] | 102 | #endif |
| 103 | |
Xiao Guangrong | 6cede2e | 2012-08-03 15:41:22 +0800 | [diff] [blame] | 104 | #define KVM_ERR_PTR_BAD_PAGE (ERR_PTR(-ENOENT)) |
| 105 | |
Xiao Guangrong | 9c5b117 | 2012-08-03 15:43:51 +0800 | [diff] [blame] | 106 | static inline bool is_error_page(struct page *page) |
Xiao Guangrong | 6cede2e | 2012-08-03 15:41:22 +0800 | [diff] [blame] | 107 | { |
| 108 | return IS_ERR(page); |
| 109 | } |
| 110 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 111 | /* |
Avi Kivity | d9e368d | 2007-06-07 19:18:30 +0300 | [diff] [blame] | 112 | * vcpu->requests bit members |
| 113 | */ |
Avi Kivity | 3176bc3 | 2007-10-16 17:22:08 +0200 | [diff] [blame] | 114 | #define KVM_REQ_TLB_FLUSH 0 |
Avi Kivity | 2f52d58 | 2008-01-16 12:49:30 +0200 | [diff] [blame] | 115 | #define KVM_REQ_MIGRATE_TIMER 1 |
Avi Kivity | b209749f | 2007-10-22 16:50:39 +0200 | [diff] [blame] | 116 | #define KVM_REQ_REPORT_TPR_ACCESS 2 |
Marcelo Tosatti | 2e53d63 | 2008-02-20 14:47:24 -0500 | [diff] [blame] | 117 | #define KVM_REQ_MMU_RELOAD 3 |
Joerg Roedel | 71c4dfa | 2008-02-26 16:49:16 +0100 | [diff] [blame] | 118 | #define KVM_REQ_TRIPLE_FAULT 4 |
Marcelo Tosatti | 06e0564 | 2008-06-06 16:37:36 -0300 | [diff] [blame] | 119 | #define KVM_REQ_PENDING_TIMER 5 |
Marcelo Tosatti | d769017 | 2008-09-08 15:23:48 -0300 | [diff] [blame] | 120 | #define KVM_REQ_UNHALT 6 |
Marcelo Tosatti | 4731d4c | 2008-09-23 13:18:39 -0300 | [diff] [blame] | 121 | #define KVM_REQ_MMU_SYNC 7 |
Zachary Amsden | 34c238a | 2010-09-18 14:38:14 -1000 | [diff] [blame] | 122 | #define KVM_REQ_CLOCK_UPDATE 8 |
Marcelo Tosatti | 32f8840 | 2009-05-07 17:55:12 -0300 | [diff] [blame] | 123 | #define KVM_REQ_KICK 9 |
Avi Kivity | 02daab2 | 2009-12-30 12:40:26 +0200 | [diff] [blame] | 124 | #define KVM_REQ_DEACTIVATE_FPU 10 |
Avi Kivity | 3842d13 | 2010-07-27 12:30:24 +0300 | [diff] [blame] | 125 | #define KVM_REQ_EVENT 11 |
Gleb Natapov | af585b9 | 2010-10-14 11:22:46 +0200 | [diff] [blame] | 126 | #define KVM_REQ_APF_HALT 12 |
Glauber Costa | c9aaa89 | 2011-07-11 15:28:14 -0400 | [diff] [blame] | 127 | #define KVM_REQ_STEAL_UPDATE 13 |
Avi Kivity | 7460fb4a | 2011-09-20 13:43:14 +0300 | [diff] [blame] | 128 | #define KVM_REQ_NMI 14 |
Jan Kiszka | 730dca4 | 2013-04-28 10:50:52 +0200 | [diff] [blame] | 129 | #define KVM_REQ_PMU 15 |
| 130 | #define KVM_REQ_PMI 16 |
| 131 | #define KVM_REQ_WATCHDOG 17 |
| 132 | #define KVM_REQ_MASTERCLOCK_UPDATE 18 |
| 133 | #define KVM_REQ_MCLOCK_INPROGRESS 19 |
| 134 | #define KVM_REQ_EPR_EXIT 20 |
| 135 | #define KVM_REQ_SCAN_IOAPIC 21 |
Marcelo Tosatti | 0061d53 | 2013-05-09 20:21:41 -0300 | [diff] [blame] | 136 | #define KVM_REQ_GLOBAL_CLOCK_UPDATE 22 |
David Hildenbrand | 8ad3575 | 2014-03-14 11:00:21 +0100 | [diff] [blame] | 137 | #define KVM_REQ_ENABLE_IBS 23 |
| 138 | #define KVM_REQ_DISABLE_IBS 24 |
Tang Chen | 4256f43 | 2014-09-24 15:57:54 +0800 | [diff] [blame] | 139 | #define KVM_REQ_APIC_PAGE_RELOAD 25 |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 140 | |
Alex Williamson | 7a84428 | 2012-09-21 11:58:03 -0600 | [diff] [blame] | 141 | #define KVM_USERSPACE_IRQ_SOURCE_ID 0 |
| 142 | #define KVM_IRQFD_RESAMPLE_IRQ_SOURCE_ID 1 |
Sheng Yang | 5550af4 | 2008-10-15 20:15:06 +0800 | [diff] [blame] | 143 | |
Rusty Russell | c16f862 | 2007-07-30 21:12:19 +1000 | [diff] [blame] | 144 | extern struct kmem_cache *kvm_vcpu_cache; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 145 | |
Paolo Bonzini | 2f303b7 | 2013-09-25 13:53:07 +0200 | [diff] [blame] | 146 | extern spinlock_t kvm_lock; |
Geoff Levand | fc1b749 | 2013-04-05 19:20:30 +0000 | [diff] [blame] | 147 | extern struct list_head vm_list; |
| 148 | |
Sasha Levin | 743eeb0 | 2011-07-27 16:00:48 +0300 | [diff] [blame] | 149 | struct kvm_io_range { |
| 150 | gpa_t addr; |
| 151 | int len; |
| 152 | struct kvm_io_device *dev; |
| 153 | }; |
| 154 | |
Amos Kong | 786a9f8 | 2012-03-09 12:17:40 +0800 | [diff] [blame] | 155 | #define NR_IOBUS_DEVS 1000 |
Amos Kong | a1300716 | 2012-03-09 12:17:32 +0800 | [diff] [blame] | 156 | |
Gregory Haskins | 2eeb2e9 | 2007-05-31 14:08:53 -0400 | [diff] [blame] | 157 | struct kvm_io_bus { |
Amos Kong | 6ea34c9 | 2013-05-25 06:44:15 +0800 | [diff] [blame] | 158 | int dev_count; |
| 159 | int ioeventfd_count; |
Amos Kong | a1300716 | 2012-03-09 12:17:32 +0800 | [diff] [blame] | 160 | struct kvm_io_range range[]; |
Gregory Haskins | 2eeb2e9 | 2007-05-31 14:08:53 -0400 | [diff] [blame] | 161 | }; |
| 162 | |
Marcelo Tosatti | e93f8a0 | 2009-12-23 14:35:24 -0200 | [diff] [blame] | 163 | enum kvm_bus { |
| 164 | KVM_MMIO_BUS, |
| 165 | KVM_PIO_BUS, |
Cornelia Huck | 060f0ce | 2013-02-28 12:33:19 +0100 | [diff] [blame] | 166 | KVM_VIRTIO_CCW_NOTIFY_BUS, |
Michael S. Tsirkin | 68c3b4d | 2014-03-31 21:50:44 +0300 | [diff] [blame] | 167 | KVM_FAST_MMIO_BUS, |
Marcelo Tosatti | e93f8a0 | 2009-12-23 14:35:24 -0200 | [diff] [blame] | 168 | KVM_NR_BUSES |
| 169 | }; |
| 170 | |
| 171 | int kvm_io_bus_write(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr, |
| 172 | int len, const void *val); |
Cornelia Huck | 126a5af | 2013-07-03 16:30:53 +0200 | [diff] [blame] | 173 | int kvm_io_bus_write_cookie(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr, |
| 174 | int len, const void *val, long cookie); |
Marcelo Tosatti | e93f8a0 | 2009-12-23 14:35:24 -0200 | [diff] [blame] | 175 | 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] | 176 | void *val); |
Sasha Levin | 743eeb0 | 2011-07-27 16:00:48 +0300 | [diff] [blame] | 177 | int kvm_io_bus_register_dev(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr, |
| 178 | int len, struct kvm_io_device *dev); |
Marcelo Tosatti | e93f8a0 | 2009-12-23 14:35:24 -0200 | [diff] [blame] | 179 | int kvm_io_bus_unregister_dev(struct kvm *kvm, enum kvm_bus bus_idx, |
| 180 | struct kvm_io_device *dev); |
Gregory Haskins | 2eeb2e9 | 2007-05-31 14:08:53 -0400 | [diff] [blame] | 181 | |
Gleb Natapov | af585b9 | 2010-10-14 11:22:46 +0200 | [diff] [blame] | 182 | #ifdef CONFIG_KVM_ASYNC_PF |
| 183 | struct kvm_async_pf { |
| 184 | struct work_struct work; |
| 185 | struct list_head link; |
| 186 | struct list_head queue; |
| 187 | struct kvm_vcpu *vcpu; |
| 188 | struct mm_struct *mm; |
| 189 | gva_t gva; |
| 190 | unsigned long addr; |
| 191 | struct kvm_arch_async_pf arch; |
chai wen | f2e1066 | 2013-10-14 22:22:33 +0800 | [diff] [blame] | 192 | bool wakeup_all; |
Gleb Natapov | af585b9 | 2010-10-14 11:22:46 +0200 | [diff] [blame] | 193 | }; |
| 194 | |
| 195 | void kvm_clear_async_pf_completion_queue(struct kvm_vcpu *vcpu); |
| 196 | void kvm_check_async_pf_completion(struct kvm_vcpu *vcpu); |
Dominik Dingel | e0ead41 | 2013-06-06 15:32:37 +0200 | [diff] [blame] | 197 | int kvm_setup_async_pf(struct kvm_vcpu *vcpu, gva_t gva, unsigned long hva, |
Gleb Natapov | af585b9 | 2010-10-14 11:22:46 +0200 | [diff] [blame] | 198 | struct kvm_arch_async_pf *arch); |
Gleb Natapov | 344d958 | 2010-10-14 11:22:50 +0200 | [diff] [blame] | 199 | int kvm_async_pf_wakeup_all(struct kvm_vcpu *vcpu); |
Gleb Natapov | af585b9 | 2010-10-14 11:22:46 +0200 | [diff] [blame] | 200 | #endif |
| 201 | |
Andres Lagar-Cavilla | 234b239 | 2014-09-17 10:51:48 -0700 | [diff] [blame] | 202 | /* |
| 203 | * Carry out a gup that requires IO. Allow the mm to relinquish the mmap |
| 204 | * semaphore if the filemap/swap has to wait on a page lock. pagep == NULL |
| 205 | * controls whether we retry the gup one more time to completion in that case. |
| 206 | * Typically this is called after a FAULT_FLAG_RETRY_NOWAIT in the main tdp |
| 207 | * handler. |
| 208 | */ |
| 209 | int kvm_get_user_page_io(struct task_struct *tsk, struct mm_struct *mm, |
| 210 | unsigned long addr, bool write_fault, |
| 211 | struct page **pagep); |
| 212 | |
Xiao Guangrong | 6b7e2d0 | 2011-01-12 15:40:31 +0800 | [diff] [blame] | 213 | enum { |
| 214 | OUTSIDE_GUEST_MODE, |
| 215 | IN_GUEST_MODE, |
Avi Kivity | c142786 | 2012-05-14 15:44:06 +0300 | [diff] [blame] | 216 | EXITING_GUEST_MODE, |
| 217 | READING_SHADOW_PAGE_TABLES, |
Xiao Guangrong | 6b7e2d0 | 2011-01-12 15:40:31 +0800 | [diff] [blame] | 218 | }; |
| 219 | |
Avi Kivity | f78146b | 2012-04-18 19:22:47 +0300 | [diff] [blame] | 220 | /* |
| 221 | * Sometimes a large or cross-page mmio needs to be broken up into separate |
| 222 | * exits for userspace servicing. |
| 223 | */ |
| 224 | struct kvm_mmio_fragment { |
| 225 | gpa_t gpa; |
| 226 | void *data; |
| 227 | unsigned len; |
| 228 | }; |
| 229 | |
Zhang Xiantao | d657a98 | 2007-12-14 09:41:22 +0800 | [diff] [blame] | 230 | struct kvm_vcpu { |
Zhang Xiantao | d17fbbf | 2007-12-14 09:45:31 +0800 | [diff] [blame] | 231 | struct kvm *kvm; |
Hollis Blanchard | 31bb117 | 2008-01-28 17:42:34 -0600 | [diff] [blame] | 232 | #ifdef CONFIG_PREEMPT_NOTIFIERS |
Zhang Xiantao | d17fbbf | 2007-12-14 09:45:31 +0800 | [diff] [blame] | 233 | struct preempt_notifier preempt_notifier; |
Hollis Blanchard | 31bb117 | 2008-01-28 17:42:34 -0600 | [diff] [blame] | 234 | #endif |
Xiao Guangrong | 6b7e2d0 | 2011-01-12 15:40:31 +0800 | [diff] [blame] | 235 | int cpu; |
Zhang Xiantao | d17fbbf | 2007-12-14 09:45:31 +0800 | [diff] [blame] | 236 | int vcpu_id; |
Xiao Guangrong | 6b7e2d0 | 2011-01-12 15:40:31 +0800 | [diff] [blame] | 237 | int srcu_idx; |
| 238 | int mode; |
Zhang Xiantao | d17fbbf | 2007-12-14 09:45:31 +0800 | [diff] [blame] | 239 | unsigned long requests; |
Jan Kiszka | d0bfb94 | 2008-12-15 13:52:10 +0100 | [diff] [blame] | 240 | unsigned long guest_debug; |
Xiao Guangrong | 6b7e2d0 | 2011-01-12 15:40:31 +0800 | [diff] [blame] | 241 | |
| 242 | struct mutex mutex; |
| 243 | struct kvm_run *run; |
Marcelo Tosatti | f656ce0 | 2009-12-23 14:35:25 -0200 | [diff] [blame] | 244 | |
Zhang Xiantao | d17fbbf | 2007-12-14 09:45:31 +0800 | [diff] [blame] | 245 | int fpu_active; |
Dexuan Cui | 2acf923 | 2010-06-10 11:27:12 +0800 | [diff] [blame] | 246 | int guest_fpu_loaded, guest_xcr0_loaded; |
Zhang Xiantao | d17fbbf | 2007-12-14 09:45:31 +0800 | [diff] [blame] | 247 | wait_queue_head_t wq; |
Rik van Riel | 34bb10b | 2011-02-01 09:52:41 -0500 | [diff] [blame] | 248 | struct pid *pid; |
Zhang Xiantao | d17fbbf | 2007-12-14 09:45:31 +0800 | [diff] [blame] | 249 | int sigset_active; |
| 250 | sigset_t sigset; |
| 251 | struct kvm_vcpu_stat stat; |
| 252 | |
| 253 | #ifdef CONFIG_HAS_IOMEM |
| 254 | int mmio_needed; |
| 255 | int mmio_read_completed; |
| 256 | int mmio_is_write; |
Avi Kivity | f78146b | 2012-04-18 19:22:47 +0300 | [diff] [blame] | 257 | int mmio_cur_fragment; |
| 258 | int mmio_nr_fragments; |
| 259 | struct kvm_mmio_fragment mmio_fragments[KVM_MAX_MMIO_FRAGMENTS]; |
Zhang Xiantao | d17fbbf | 2007-12-14 09:45:31 +0800 | [diff] [blame] | 260 | #endif |
Zhang Xiantao | d657a98 | 2007-12-14 09:41:22 +0800 | [diff] [blame] | 261 | |
Gleb Natapov | af585b9 | 2010-10-14 11:22:46 +0200 | [diff] [blame] | 262 | #ifdef CONFIG_KVM_ASYNC_PF |
| 263 | struct { |
| 264 | u32 queued; |
| 265 | struct list_head queue; |
| 266 | struct list_head done; |
| 267 | spinlock_t lock; |
| 268 | } async_pf; |
| 269 | #endif |
| 270 | |
Raghavendra K T | 4c08849 | 2012-07-18 19:07:46 +0530 | [diff] [blame] | 271 | #ifdef CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT |
| 272 | /* |
| 273 | * Cpu relax intercept or pause loop exit optimization |
| 274 | * in_spin_loop: set when a vcpu does a pause loop exit |
| 275 | * or cpu relax intercepted. |
| 276 | * dy_eligible: indicates whether vcpu is eligible for directed yield. |
| 277 | */ |
| 278 | struct { |
| 279 | bool in_spin_loop; |
| 280 | bool dy_eligible; |
| 281 | } spin_loop; |
| 282 | #endif |
Raghavendra K T | 3a08a8f | 2013-03-04 23:32:07 +0530 | [diff] [blame] | 283 | bool preempted; |
Zhang Xiantao | d657a98 | 2007-12-14 09:41:22 +0800 | [diff] [blame] | 284 | struct kvm_vcpu_arch arch; |
| 285 | }; |
| 286 | |
Xiao Guangrong | 6b7e2d0 | 2011-01-12 15:40:31 +0800 | [diff] [blame] | 287 | static inline int kvm_vcpu_exiting_guest_mode(struct kvm_vcpu *vcpu) |
| 288 | { |
| 289 | return cmpxchg(&vcpu->mode, IN_GUEST_MODE, EXITING_GUEST_MODE); |
| 290 | } |
| 291 | |
Takuya Yoshikawa | 660c22c | 2010-04-13 22:47:24 +0900 | [diff] [blame] | 292 | /* |
| 293 | * Some of the bitops functions do not support too long bitmaps. |
| 294 | * This number must be determined not to exceed such limits. |
| 295 | */ |
| 296 | #define KVM_MEM_MAX_NR_PAGES ((1UL << 31) - 1) |
| 297 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 298 | struct kvm_memory_slot { |
| 299 | gfn_t base_gfn; |
| 300 | unsigned long npages; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 301 | unsigned long *dirty_bitmap; |
Takuya Yoshikawa | db3fe4e | 2012-02-08 13:02:18 +0900 | [diff] [blame] | 302 | struct kvm_arch_memory_slot arch; |
Izik Eidus | 8a7ae05 | 2007-10-18 11:09:33 +0200 | [diff] [blame] | 303 | unsigned long userspace_addr; |
Alex Williamson | 6104f47 | 2012-12-10 10:33:26 -0700 | [diff] [blame] | 304 | u32 flags; |
Alex Williamson | 1e702d9 | 2012-12-10 10:33:32 -0700 | [diff] [blame] | 305 | short id; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 306 | }; |
| 307 | |
Takuya Yoshikawa | 87bf6e7 | 2010-04-12 19:35:35 +0900 | [diff] [blame] | 308 | static inline unsigned long kvm_dirty_bitmap_bytes(struct kvm_memory_slot *memslot) |
| 309 | { |
| 310 | return ALIGN(memslot->npages, BITS_PER_LONG) / 8; |
| 311 | } |
| 312 | |
Cornelia Huck | 8422359 | 2013-07-15 13:36:01 +0200 | [diff] [blame] | 313 | struct kvm_s390_adapter_int { |
| 314 | u64 ind_addr; |
| 315 | u64 summary_addr; |
| 316 | u64 ind_offset; |
| 317 | u32 summary_offset; |
| 318 | u32 adapter_id; |
| 319 | }; |
| 320 | |
Avi Kivity | 399ec80 | 2008-11-19 13:58:46 +0200 | [diff] [blame] | 321 | struct kvm_kernel_irq_routing_entry { |
| 322 | u32 gsi; |
Michael S. Tsirkin | 5116d8f | 2009-07-26 17:10:01 +0300 | [diff] [blame] | 323 | u32 type; |
Gleb Natapov | 4925663 | 2009-02-04 17:28:14 +0200 | [diff] [blame] | 324 | int (*set)(struct kvm_kernel_irq_routing_entry *e, |
Yang Zhang | aa2fbe6 | 2013-04-11 19:21:40 +0800 | [diff] [blame] | 325 | struct kvm *kvm, int irq_source_id, int level, |
| 326 | bool line_status); |
Avi Kivity | 399ec80 | 2008-11-19 13:58:46 +0200 | [diff] [blame] | 327 | union { |
| 328 | struct { |
| 329 | unsigned irqchip; |
| 330 | unsigned pin; |
| 331 | } irqchip; |
Sheng Yang | 79950e1 | 2009-02-10 13:57:06 +0800 | [diff] [blame] | 332 | struct msi_msg msi; |
Cornelia Huck | 8422359 | 2013-07-15 13:36:01 +0200 | [diff] [blame] | 333 | struct kvm_s390_adapter_int adapter; |
Avi Kivity | 399ec80 | 2008-11-19 13:58:46 +0200 | [diff] [blame] | 334 | }; |
Gleb Natapov | 46e624b | 2009-08-24 11:54:20 +0300 | [diff] [blame] | 335 | struct hlist_node link; |
| 336 | }; |
| 337 | |
Alex Williamson | 0743247 | 2012-12-10 10:33:15 -0700 | [diff] [blame] | 338 | #ifndef KVM_PRIVATE_MEM_SLOTS |
| 339 | #define KVM_PRIVATE_MEM_SLOTS 0 |
| 340 | #endif |
| 341 | |
Xiao Guangrong | 93a5cef | 2011-11-24 17:37:48 +0800 | [diff] [blame] | 342 | #ifndef KVM_MEM_SLOTS_NUM |
Alex Williamson | bbacc0c | 2012-12-10 10:33:09 -0700 | [diff] [blame] | 343 | #define KVM_MEM_SLOTS_NUM (KVM_USER_MEM_SLOTS + KVM_PRIVATE_MEM_SLOTS) |
Xiao Guangrong | 93a5cef | 2011-11-24 17:37:48 +0800 | [diff] [blame] | 344 | #endif |
| 345 | |
Xiao Guangrong | bf3e05b | 2011-11-24 17:40:57 +0800 | [diff] [blame] | 346 | /* |
| 347 | * Note: |
| 348 | * memslots are not sorted by id anymore, please use id_to_memslot() |
| 349 | * to get the memslot by its id. |
| 350 | */ |
Marcelo Tosatti | 46a26bf | 2009-12-23 14:35:16 -0200 | [diff] [blame] | 351 | struct kvm_memslots { |
Gleb Natapov | 49c7754 | 2010-10-18 15:22:23 +0200 | [diff] [blame] | 352 | u64 generation; |
Xiao Guangrong | 93a5cef | 2011-11-24 17:37:48 +0800 | [diff] [blame] | 353 | struct kvm_memory_slot memslots[KVM_MEM_SLOTS_NUM]; |
Xiao Guangrong | f85e2cb | 2011-11-24 17:41:54 +0800 | [diff] [blame] | 354 | /* The mapping table from slot id to the index in memslots[]. */ |
Alex Williamson | 1e702d9 | 2012-12-10 10:33:32 -0700 | [diff] [blame] | 355 | short id_to_index[KVM_MEM_SLOTS_NUM]; |
Marcelo Tosatti | 46a26bf | 2009-12-23 14:35:16 -0200 | [diff] [blame] | 356 | }; |
| 357 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 358 | struct kvm { |
Marcelo Tosatti | aaee2c9 | 2007-12-20 19:18:26 -0500 | [diff] [blame] | 359 | spinlock_t mmu_lock; |
Marcelo Tosatti | 79fac95 | 2009-12-23 14:35:26 -0200 | [diff] [blame] | 360 | struct mutex slots_lock; |
Avi Kivity | 6d4e4c4 | 2007-11-21 16:41:05 +0200 | [diff] [blame] | 361 | struct mm_struct *mm; /* userspace tied to this vm */ |
Marcelo Tosatti | 46a26bf | 2009-12-23 14:35:16 -0200 | [diff] [blame] | 362 | struct kvm_memslots *memslots; |
Marcelo Tosatti | bc6678a | 2009-12-23 14:35:21 -0200 | [diff] [blame] | 363 | struct srcu_struct srcu; |
Christian Borntraeger | 719d93c | 2014-01-16 13:44:20 +0100 | [diff] [blame] | 364 | struct srcu_struct irq_srcu; |
Gleb Natapov | 73880c8 | 2009-06-09 15:56:28 +0300 | [diff] [blame] | 365 | #ifdef CONFIG_KVM_APIC_ARCHITECTURE |
| 366 | u32 bsp_vcpu_id; |
Gleb Natapov | 73880c8 | 2009-06-09 15:56:28 +0300 | [diff] [blame] | 367 | #endif |
Rusty Russell | fb3f0f5 | 2007-07-27 17:16:56 +1000 | [diff] [blame] | 368 | struct kvm_vcpu *vcpus[KVM_MAX_VCPUS]; |
Gleb Natapov | 73880c8 | 2009-06-09 15:56:28 +0300 | [diff] [blame] | 369 | atomic_t online_vcpus; |
Rik van Riel | 217ece6 | 2011-02-01 09:53:28 -0500 | [diff] [blame] | 370 | int last_boosted_vcpu; |
Avi Kivity | 133de90 | 2007-02-12 00:54:44 -0800 | [diff] [blame] | 371 | struct list_head vm_list; |
Marcelo Tosatti | 60eead7 | 2009-06-04 15:08:23 -0300 | [diff] [blame] | 372 | struct mutex lock; |
Marcelo Tosatti | e93f8a0 | 2009-12-23 14:35:24 -0200 | [diff] [blame] | 373 | struct kvm_io_bus *buses[KVM_NR_BUSES]; |
Gregory Haskins | 721eecb | 2009-05-20 10:30:49 -0400 | [diff] [blame] | 374 | #ifdef CONFIG_HAVE_KVM_EVENTFD |
| 375 | struct { |
| 376 | spinlock_t lock; |
| 377 | struct list_head items; |
Alex Williamson | 7a84428 | 2012-09-21 11:58:03 -0600 | [diff] [blame] | 378 | struct list_head resampler_list; |
| 379 | struct mutex resampler_lock; |
Gregory Haskins | 721eecb | 2009-05-20 10:30:49 -0400 | [diff] [blame] | 380 | } irqfds; |
Gregory Haskins | d34e6b1 | 2009-07-07 17:08:49 -0400 | [diff] [blame] | 381 | struct list_head ioeventfds; |
Gregory Haskins | 721eecb | 2009-05-20 10:30:49 -0400 | [diff] [blame] | 382 | #endif |
Avi Kivity | ba1389b | 2007-11-18 16:24:12 +0200 | [diff] [blame] | 383 | struct kvm_vm_stat stat; |
Zhang Xiantao | d69fb81 | 2007-12-14 09:54:20 +0800 | [diff] [blame] | 384 | struct kvm_arch arch; |
Izik Eidus | d39f13b | 2008-03-30 16:01:25 +0300 | [diff] [blame] | 385 | atomic_t users_count; |
Laurent Vivier | 5f94c17 | 2008-05-30 16:05:54 +0200 | [diff] [blame] | 386 | #ifdef KVM_COALESCED_MMIO_PAGE_OFFSET |
Laurent Vivier | 5f94c17 | 2008-05-30 16:05:54 +0200 | [diff] [blame] | 387 | struct kvm_coalesced_mmio_ring *coalesced_mmio_ring; |
Sasha Levin | 2b3c246 | 2011-07-20 20:59:00 +0300 | [diff] [blame] | 388 | spinlock_t ring_lock; |
| 389 | struct list_head coalesced_zones; |
Laurent Vivier | 5f94c17 | 2008-05-30 16:05:54 +0200 | [diff] [blame] | 390 | #endif |
Andrea Arcangeli | e930bff | 2008-07-25 16:24:52 +0200 | [diff] [blame] | 391 | |
Marcelo Tosatti | 60eead7 | 2009-06-04 15:08:23 -0300 | [diff] [blame] | 392 | struct mutex irq_lock; |
Avi Kivity | 75858a8 | 2009-01-04 17:10:50 +0200 | [diff] [blame] | 393 | #ifdef CONFIG_HAVE_KVM_IRQCHIP |
Michael S. Tsirkin | bd2b53b | 2010-11-18 19:09:08 +0200 | [diff] [blame] | 394 | /* |
Paul Mackerras | 9957c86 | 2014-06-30 20:51:11 +1000 | [diff] [blame] | 395 | * Update side is protected by irq_lock. |
Michael S. Tsirkin | bd2b53b | 2010-11-18 19:09:08 +0200 | [diff] [blame] | 396 | */ |
Arnd Bergmann | 4b6a287 | 2010-03-04 15:59:23 +0100 | [diff] [blame] | 397 | struct kvm_irq_routing_table __rcu *irq_routing; |
Avi Kivity | 75858a8 | 2009-01-04 17:10:50 +0200 | [diff] [blame] | 398 | struct hlist_head mask_notifier_list; |
Paolo Bonzini | c77dcac | 2014-08-06 14:24:45 +0200 | [diff] [blame] | 399 | #endif |
| 400 | #ifdef CONFIG_HAVE_KVM_IRQFD |
Gleb Natapov | 136bdfe | 2009-08-24 11:54:23 +0300 | [diff] [blame] | 401 | struct hlist_head irq_ack_notifier_list; |
Avi Kivity | 75858a8 | 2009-01-04 17:10:50 +0200 | [diff] [blame] | 402 | #endif |
| 403 | |
Marc Zyngier | 36c1ed8 | 2012-06-15 15:07:24 -0400 | [diff] [blame] | 404 | #if defined(CONFIG_MMU_NOTIFIER) && defined(KVM_ARCH_WANT_MMU_NOTIFIER) |
Andrea Arcangeli | e930bff | 2008-07-25 16:24:52 +0200 | [diff] [blame] | 405 | struct mmu_notifier mmu_notifier; |
| 406 | unsigned long mmu_notifier_seq; |
| 407 | long mmu_notifier_count; |
| 408 | #endif |
Xiao Guangrong | a086f6a | 2014-04-17 17:06:12 +0800 | [diff] [blame] | 409 | long tlbs_dirty; |
Scott Wood | 07f0a7b | 2013-04-25 14:11:23 +0000 | [diff] [blame] | 410 | struct list_head devices; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 411 | }; |
| 412 | |
Christoffer Dall | a737f25 | 2012-06-03 21:17:48 +0300 | [diff] [blame] | 413 | #define kvm_err(fmt, ...) \ |
| 414 | pr_err("kvm [%i]: " fmt, task_pid_nr(current), ## __VA_ARGS__) |
| 415 | #define kvm_info(fmt, ...) \ |
| 416 | pr_info("kvm [%i]: " fmt, task_pid_nr(current), ## __VA_ARGS__) |
| 417 | #define kvm_debug(fmt, ...) \ |
| 418 | pr_debug("kvm [%i]: " fmt, task_pid_nr(current), ## __VA_ARGS__) |
| 419 | #define kvm_pr_unimpl(fmt, ...) \ |
| 420 | pr_err_ratelimited("kvm [%i]: " fmt, \ |
| 421 | task_tgid_nr(current), ## __VA_ARGS__) |
Rusty Russell | f024247 | 2007-08-01 10:48:02 +1000 | [diff] [blame] | 422 | |
Christoffer Dall | a737f25 | 2012-06-03 21:17:48 +0300 | [diff] [blame] | 423 | /* The guest did something we don't support. */ |
| 424 | #define vcpu_unimpl(vcpu, fmt, ...) \ |
| 425 | kvm_pr_unimpl("vcpu%i " fmt, (vcpu)->vcpu_id, ## __VA_ARGS__) |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 426 | |
Gleb Natapov | 988a2ca | 2009-06-09 15:56:29 +0300 | [diff] [blame] | 427 | static inline struct kvm_vcpu *kvm_get_vcpu(struct kvm *kvm, int i) |
| 428 | { |
| 429 | smp_rmb(); |
| 430 | return kvm->vcpus[i]; |
| 431 | } |
| 432 | |
| 433 | #define kvm_for_each_vcpu(idx, vcpup, kvm) \ |
Jeff Mahoney | b42fc3c | 2011-04-12 21:30:17 -0400 | [diff] [blame] | 434 | for (idx = 0; \ |
| 435 | idx < atomic_read(&kvm->online_vcpus) && \ |
| 436 | (vcpup = kvm_get_vcpu(kvm, idx)) != NULL; \ |
| 437 | idx++) |
Gleb Natapov | 988a2ca | 2009-06-09 15:56:29 +0300 | [diff] [blame] | 438 | |
Xiao Guangrong | be6ba0f | 2011-11-24 17:39:18 +0800 | [diff] [blame] | 439 | #define kvm_for_each_memslot(memslot, slots) \ |
| 440 | for (memslot = &slots->memslots[0]; \ |
Xiao Guangrong | bf3e05b | 2011-11-24 17:40:57 +0800 | [diff] [blame] | 441 | memslot < slots->memslots + KVM_MEM_SLOTS_NUM && memslot->npages;\ |
| 442 | memslot++) |
Xiao Guangrong | be6ba0f | 2011-11-24 17:39:18 +0800 | [diff] [blame] | 443 | |
Rusty Russell | fb3f0f5 | 2007-07-27 17:16:56 +1000 | [diff] [blame] | 444 | int kvm_vcpu_init(struct kvm_vcpu *vcpu, struct kvm *kvm, unsigned id); |
| 445 | void kvm_vcpu_uninit(struct kvm_vcpu *vcpu); |
| 446 | |
Michael S. Tsirkin | 9fc7744 | 2012-09-16 11:50:30 +0300 | [diff] [blame] | 447 | int __must_check vcpu_load(struct kvm_vcpu *vcpu); |
Carsten Otte | 313a3dc | 2007-10-11 19:16:52 +0200 | [diff] [blame] | 448 | void vcpu_put(struct kvm_vcpu *vcpu); |
| 449 | |
Paul Mackerras | 297e210 | 2014-06-30 20:51:13 +1000 | [diff] [blame] | 450 | #ifdef CONFIG_HAVE_KVM_IRQFD |
Cornelia Huck | a0f155e | 2013-02-28 12:33:18 +0100 | [diff] [blame] | 451 | int kvm_irqfd_init(void); |
| 452 | void kvm_irqfd_exit(void); |
| 453 | #else |
| 454 | static inline int kvm_irqfd_init(void) |
| 455 | { |
| 456 | return 0; |
| 457 | } |
| 458 | |
| 459 | static inline void kvm_irqfd_exit(void) |
| 460 | { |
| 461 | } |
| 462 | #endif |
Avi Kivity | 0ee75be | 2010-04-28 15:39:01 +0300 | [diff] [blame] | 463 | int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align, |
Rusty Russell | c16f862 | 2007-07-30 21:12:19 +1000 | [diff] [blame] | 464 | struct module *module); |
Zhang Xiantao | cb498ea | 2007-11-14 20:39:31 +0800 | [diff] [blame] | 465 | void kvm_exit(void); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 466 | |
Izik Eidus | d39f13b | 2008-03-30 16:01:25 +0300 | [diff] [blame] | 467 | void kvm_get_kvm(struct kvm *kvm); |
| 468 | void kvm_put_kvm(struct kvm *kvm); |
| 469 | |
Lai Jiangshan | 90d83dc | 2010-04-19 17:41:23 +0800 | [diff] [blame] | 470 | static inline struct kvm_memslots *kvm_memslots(struct kvm *kvm) |
| 471 | { |
| 472 | return rcu_dereference_check(kvm->memslots, |
| 473 | srcu_read_lock_held(&kvm->srcu) |
| 474 | || lockdep_is_held(&kvm->slots_lock)); |
| 475 | } |
| 476 | |
Xiao Guangrong | 28a3754 | 2011-11-24 19:04:35 +0800 | [diff] [blame] | 477 | static inline struct kvm_memory_slot * |
| 478 | id_to_memslot(struct kvm_memslots *slots, int id) |
| 479 | { |
Xiao Guangrong | f85e2cb | 2011-11-24 17:41:54 +0800 | [diff] [blame] | 480 | int index = slots->id_to_index[id]; |
| 481 | struct kvm_memory_slot *slot; |
Xiao Guangrong | bf3e05b | 2011-11-24 17:40:57 +0800 | [diff] [blame] | 482 | |
Xiao Guangrong | f85e2cb | 2011-11-24 17:41:54 +0800 | [diff] [blame] | 483 | slot = &slots->memslots[index]; |
Xiao Guangrong | bf3e05b | 2011-11-24 17:40:57 +0800 | [diff] [blame] | 484 | |
Xiao Guangrong | f85e2cb | 2011-11-24 17:41:54 +0800 | [diff] [blame] | 485 | WARN_ON(slot->id != id); |
| 486 | return slot; |
Xiao Guangrong | 28a3754 | 2011-11-24 19:04:35 +0800 | [diff] [blame] | 487 | } |
| 488 | |
Takuya Yoshikawa | 74d0727 | 2013-02-27 19:43:44 +0900 | [diff] [blame] | 489 | /* |
| 490 | * KVM_SET_USER_MEMORY_REGION ioctl allows the following operations: |
| 491 | * - create a new memory slot |
| 492 | * - delete an existing memory slot |
| 493 | * - modify an existing memory slot |
| 494 | * -- move it in the guest physical memory space |
| 495 | * -- just change its flags |
| 496 | * |
| 497 | * Since flags can be changed by some of these operations, the following |
| 498 | * differentiation is the best we can do for __kvm_set_memory_region(): |
| 499 | */ |
| 500 | enum kvm_mr_change { |
| 501 | KVM_MR_CREATE, |
| 502 | KVM_MR_DELETE, |
| 503 | KVM_MR_MOVE, |
| 504 | KVM_MR_FLAGS_ONLY, |
| 505 | }; |
| 506 | |
Izik Eidus | 210c7c4 | 2007-10-24 23:52:57 +0200 | [diff] [blame] | 507 | int kvm_set_memory_region(struct kvm *kvm, |
Takuya Yoshikawa | 47ae31e | 2013-02-27 19:43:00 +0900 | [diff] [blame] | 508 | struct kvm_userspace_memory_region *mem); |
Sheng Yang | f78e0e2 | 2007-10-29 09:40:42 +0800 | [diff] [blame] | 509 | int __kvm_set_memory_region(struct kvm *kvm, |
Takuya Yoshikawa | 47ae31e | 2013-02-27 19:43:00 +0900 | [diff] [blame] | 510 | struct kvm_userspace_memory_region *mem); |
Aneesh Kumar K.V | 5587027 | 2013-10-07 22:18:00 +0530 | [diff] [blame] | 511 | void kvm_arch_free_memslot(struct kvm *kvm, struct kvm_memory_slot *free, |
Takuya Yoshikawa | db3fe4e | 2012-02-08 13:02:18 +0900 | [diff] [blame] | 512 | struct kvm_memory_slot *dont); |
Aneesh Kumar K.V | 5587027 | 2013-10-07 22:18:00 +0530 | [diff] [blame] | 513 | int kvm_arch_create_memslot(struct kvm *kvm, struct kvm_memory_slot *slot, |
| 514 | unsigned long npages); |
Takuya Yoshikawa | e59dbe0 | 2013-07-04 13:40:29 +0900 | [diff] [blame] | 515 | void kvm_arch_memslots_updated(struct kvm *kvm); |
Marcelo Tosatti | f7784b8 | 2009-12-23 14:35:18 -0200 | [diff] [blame] | 516 | int kvm_arch_prepare_memory_region(struct kvm *kvm, |
| 517 | struct kvm_memory_slot *memslot, |
Marcelo Tosatti | f7784b8 | 2009-12-23 14:35:18 -0200 | [diff] [blame] | 518 | struct kvm_userspace_memory_region *mem, |
Takuya Yoshikawa | 7b6195a | 2013-02-27 19:44:34 +0900 | [diff] [blame] | 519 | enum kvm_mr_change change); |
Marcelo Tosatti | f7784b8 | 2009-12-23 14:35:18 -0200 | [diff] [blame] | 520 | void kvm_arch_commit_memory_region(struct kvm *kvm, |
Zhang Xiantao | 0de1034 | 2007-11-20 16:25:04 +0800 | [diff] [blame] | 521 | struct kvm_userspace_memory_region *mem, |
Takuya Yoshikawa | 8482644 | 2013-02-27 19:45:25 +0900 | [diff] [blame] | 522 | const struct kvm_memory_slot *old, |
| 523 | enum kvm_mr_change change); |
Takuya Yoshikawa | db3fe4e | 2012-02-08 13:02:18 +0900 | [diff] [blame] | 524 | bool kvm_largepages_enabled(void); |
Marcelo Tosatti | 54dee99 | 2009-06-11 12:07:44 -0300 | [diff] [blame] | 525 | void kvm_disable_largepages(void); |
Marcelo Tosatti | 2df72e9 | 2012-08-24 15:54:57 -0300 | [diff] [blame] | 526 | /* flush all memory translations */ |
| 527 | void kvm_arch_flush_shadow_all(struct kvm *kvm); |
| 528 | /* flush memory translations pointing to 'slot' */ |
| 529 | void kvm_arch_flush_shadow_memslot(struct kvm *kvm, |
| 530 | struct kvm_memory_slot *slot); |
Marcelo Tosatti | a983fb2 | 2009-12-23 14:35:23 -0200 | [diff] [blame] | 531 | |
Xiao Guangrong | 4898778 | 2010-08-22 19:11:43 +0800 | [diff] [blame] | 532 | int gfn_to_page_many_atomic(struct kvm *kvm, gfn_t gfn, struct page **pages, |
| 533 | int nr_pages); |
| 534 | |
Avi Kivity | 954bbbc | 2007-03-30 14:02:32 +0300 | [diff] [blame] | 535 | struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn); |
Marcelo Tosatti | 05da455 | 2008-02-23 11:44:30 -0300 | [diff] [blame] | 536 | unsigned long gfn_to_hva(struct kvm *kvm, gfn_t gfn); |
Paolo Bonzini | ba6a354 | 2013-09-09 13:52:33 +0200 | [diff] [blame] | 537 | unsigned long gfn_to_hva_prot(struct kvm *kvm, gfn_t gfn, bool *writable); |
Xiao Guangrong | 4d8b81a | 2012-08-21 11:02:51 +0800 | [diff] [blame] | 538 | unsigned long gfn_to_hva_memslot(struct kvm_memory_slot *slot, gfn_t gfn); |
Christoffer Dall | 64d8312 | 2014-08-19 12:15:00 +0200 | [diff] [blame] | 539 | unsigned long gfn_to_hva_memslot_prot(struct kvm_memory_slot *slot, gfn_t gfn, |
| 540 | bool *writable); |
Izik Eidus | b4231d6 | 2007-11-20 11:49:33 +0200 | [diff] [blame] | 541 | void kvm_release_page_clean(struct page *page); |
| 542 | void kvm_release_page_dirty(struct page *page); |
Anthony Liguori | 35149e2 | 2008-04-02 14:46:56 -0500 | [diff] [blame] | 543 | void kvm_set_page_accessed(struct page *page); |
| 544 | |
Xiao Guangrong | 365fb3f | 2010-08-28 19:24:13 +0800 | [diff] [blame] | 545 | pfn_t gfn_to_pfn_atomic(struct kvm *kvm, gfn_t gfn); |
Marcelo Tosatti | 612819c | 2010-10-22 14:18:18 -0200 | [diff] [blame] | 546 | pfn_t gfn_to_pfn_async(struct kvm *kvm, gfn_t gfn, bool *async, |
| 547 | bool write_fault, bool *writable); |
Anthony Liguori | 35149e2 | 2008-04-02 14:46:56 -0500 | [diff] [blame] | 548 | pfn_t gfn_to_pfn(struct kvm *kvm, gfn_t gfn); |
Marcelo Tosatti | 612819c | 2010-10-22 14:18:18 -0200 | [diff] [blame] | 549 | pfn_t gfn_to_pfn_prot(struct kvm *kvm, gfn_t gfn, bool write_fault, |
| 550 | bool *writable); |
Xiao Guangrong | d566104 | 2012-07-17 21:56:16 +0800 | [diff] [blame] | 551 | pfn_t gfn_to_pfn_memslot(struct kvm_memory_slot *slot, gfn_t gfn); |
Xiao Guangrong | 037d92d | 2012-08-21 10:59:12 +0800 | [diff] [blame] | 552 | pfn_t gfn_to_pfn_memslot_atomic(struct kvm_memory_slot *slot, gfn_t gfn); |
| 553 | |
Anthony Liguori | 35149e2 | 2008-04-02 14:46:56 -0500 | [diff] [blame] | 554 | void kvm_release_pfn_clean(pfn_t pfn); |
| 555 | void kvm_set_pfn_dirty(pfn_t pfn); |
| 556 | void kvm_set_pfn_accessed(pfn_t pfn); |
| 557 | void kvm_get_pfn(pfn_t pfn); |
| 558 | |
Izik Eidus | 195aefd | 2007-10-01 22:14:18 +0200 | [diff] [blame] | 559 | int kvm_read_guest_page(struct kvm *kvm, gfn_t gfn, void *data, int offset, |
| 560 | int len); |
Marcelo Tosatti | 7ec5458 | 2007-12-20 19:18:23 -0500 | [diff] [blame] | 561 | int kvm_read_guest_atomic(struct kvm *kvm, gpa_t gpa, void *data, |
| 562 | unsigned long len); |
Izik Eidus | 195aefd | 2007-10-01 22:14:18 +0200 | [diff] [blame] | 563 | 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] | 564 | int kvm_read_guest_cached(struct kvm *kvm, struct gfn_to_hva_cache *ghc, |
| 565 | void *data, unsigned long len); |
Izik Eidus | 195aefd | 2007-10-01 22:14:18 +0200 | [diff] [blame] | 566 | int kvm_write_guest_page(struct kvm *kvm, gfn_t gfn, const void *data, |
| 567 | int offset, int len); |
| 568 | int kvm_write_guest(struct kvm *kvm, gpa_t gpa, const void *data, |
| 569 | unsigned long len); |
Gleb Natapov | 49c7754 | 2010-10-18 15:22:23 +0200 | [diff] [blame] | 570 | int kvm_write_guest_cached(struct kvm *kvm, struct gfn_to_hva_cache *ghc, |
| 571 | void *data, unsigned long len); |
| 572 | int kvm_gfn_to_hva_cache_init(struct kvm *kvm, struct gfn_to_hva_cache *ghc, |
Andrew Honig | 8f96452 | 2013-03-29 09:35:21 -0700 | [diff] [blame] | 573 | gpa_t gpa, unsigned long len); |
Izik Eidus | 195aefd | 2007-10-01 22:14:18 +0200 | [diff] [blame] | 574 | int kvm_clear_guest_page(struct kvm *kvm, gfn_t gfn, int offset, int len); |
| 575 | 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] | 576 | 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] | 577 | int kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn); |
Joerg Roedel | 8f0b1ab | 2010-01-28 12:37:56 +0100 | [diff] [blame] | 578 | unsigned long kvm_host_page_size(struct kvm *kvm, gfn_t gfn); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 579 | void mark_page_dirty(struct kvm *kvm, gfn_t gfn); |
| 580 | |
Hollis Blanchard | 8776e51 | 2007-10-31 17:24:24 -0500 | [diff] [blame] | 581 | void kvm_vcpu_block(struct kvm_vcpu *vcpu); |
Christoffer Dall | b6d3383 | 2012-03-08 16:44:24 -0500 | [diff] [blame] | 582 | void kvm_vcpu_kick(struct kvm_vcpu *vcpu); |
Dan Carpenter | fa93384 | 2014-05-23 13:20:42 +0300 | [diff] [blame] | 583 | int kvm_vcpu_yield_to(struct kvm_vcpu *target); |
Zhai, Edwin | d255f4f | 2009-10-09 18:03:20 +0800 | [diff] [blame] | 584 | void kvm_vcpu_on_spin(struct kvm_vcpu *vcpu); |
Avi Kivity | 7702fd1 | 2007-06-14 16:27:40 +0300 | [diff] [blame] | 585 | void kvm_load_guest_fpu(struct kvm_vcpu *vcpu); |
| 586 | void kvm_put_guest_fpu(struct kvm_vcpu *vcpu); |
Xiao Guangrong | a4ee1ca | 2010-11-23 11:13:00 +0800 | [diff] [blame] | 587 | |
Avi Kivity | d9e368d | 2007-06-07 19:18:30 +0300 | [diff] [blame] | 588 | void kvm_flush_remote_tlbs(struct kvm *kvm); |
Marcelo Tosatti | 2e53d63 | 2008-02-20 14:47:24 -0500 | [diff] [blame] | 589 | void kvm_reload_remote_mmus(struct kvm *kvm); |
Marcelo Tosatti | d828199 | 2012-11-27 23:29:01 -0200 | [diff] [blame] | 590 | void kvm_make_mclock_inprogress_request(struct kvm *kvm); |
Yang Zhang | 3d81bc7 | 2013-04-11 19:25:13 +0800 | [diff] [blame] | 591 | void kvm_make_scan_ioapic_request(struct kvm *kvm); |
Tang Chen | 445b823 | 2014-09-24 15:57:55 +0800 | [diff] [blame] | 592 | bool kvm_make_all_cpus_request(struct kvm *kvm, unsigned int req); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 593 | |
Carsten Otte | 043405e | 2007-10-10 17:16:19 +0200 | [diff] [blame] | 594 | long kvm_arch_dev_ioctl(struct file *filp, |
| 595 | unsigned int ioctl, unsigned long arg); |
Carsten Otte | 313a3dc | 2007-10-11 19:16:52 +0200 | [diff] [blame] | 596 | long kvm_arch_vcpu_ioctl(struct file *filp, |
| 597 | unsigned int ioctl, unsigned long arg); |
Carsten Otte | 5b1c149 | 2012-01-04 10:25:23 +0100 | [diff] [blame] | 598 | 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] | 599 | |
Alexander Graf | 784aa3d | 2014-07-14 18:27:35 +0200 | [diff] [blame] | 600 | int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext); |
Zhang Xiantao | 018d00d | 2007-11-15 23:07:47 +0800 | [diff] [blame] | 601 | |
Zhang Xiantao | 5bb064d | 2007-11-18 20:29:43 +0800 | [diff] [blame] | 602 | int kvm_get_dirty_log(struct kvm *kvm, |
| 603 | struct kvm_dirty_log *log, int *is_dirty); |
| 604 | int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, |
| 605 | struct kvm_dirty_log *log); |
| 606 | |
Yang Zhang | aa2fbe6 | 2013-04-11 19:21:40 +0800 | [diff] [blame] | 607 | int kvm_vm_ioctl_irq_line(struct kvm *kvm, struct kvm_irq_level *irq_level, |
| 608 | bool line_status); |
Carsten Otte | 1fe779f | 2007-10-29 16:08:35 +0100 | [diff] [blame] | 609 | long kvm_arch_vm_ioctl(struct file *filp, |
| 610 | unsigned int ioctl, unsigned long arg); |
Carsten Otte | 313a3dc | 2007-10-11 19:16:52 +0200 | [diff] [blame] | 611 | |
Hollis Blanchard | d075206 | 2007-10-31 17:24:25 -0500 | [diff] [blame] | 612 | int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu); |
| 613 | int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu); |
| 614 | |
Zhang Xiantao | 8b00679 | 2007-11-16 13:05:55 +0800 | [diff] [blame] | 615 | int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu, |
| 616 | struct kvm_translation *tr); |
| 617 | |
Hollis Blanchard | b6c7a5d | 2007-11-01 14:16:10 -0500 | [diff] [blame] | 618 | int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs); |
| 619 | int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs); |
| 620 | int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu, |
| 621 | struct kvm_sregs *sregs); |
| 622 | int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu, |
| 623 | struct kvm_sregs *sregs); |
Marcelo Tosatti | 62d9f0d | 2008-04-11 13:24:45 -0300 | [diff] [blame] | 624 | int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu, |
| 625 | struct kvm_mp_state *mp_state); |
| 626 | int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, |
| 627 | struct kvm_mp_state *mp_state); |
Jan Kiszka | d0bfb94 | 2008-12-15 13:52:10 +0100 | [diff] [blame] | 628 | int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu, |
| 629 | struct kvm_guest_debug *dbg); |
Hollis Blanchard | b6c7a5d | 2007-11-01 14:16:10 -0500 | [diff] [blame] | 630 | int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run); |
| 631 | |
Zhang Xiantao | f8c16bb | 2007-11-14 20:40:21 +0800 | [diff] [blame] | 632 | int kvm_arch_init(void *opaque); |
| 633 | void kvm_arch_exit(void); |
Carsten Otte | 043405e | 2007-10-10 17:16:19 +0200 | [diff] [blame] | 634 | |
Zhang Xiantao | e9b11c1 | 2007-11-14 20:38:21 +0800 | [diff] [blame] | 635 | int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu); |
| 636 | void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu); |
| 637 | |
Radim Krčmář | e790d9e | 2014-08-21 18:08:05 +0200 | [diff] [blame] | 638 | void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu); |
| 639 | |
Zhang Xiantao | e9b11c1 | 2007-11-14 20:38:21 +0800 | [diff] [blame] | 640 | void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu); |
| 641 | void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu); |
| 642 | void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu); |
| 643 | 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] | 644 | int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu); |
Marcelo Tosatti | 42897d8 | 2012-11-27 23:29:02 -0200 | [diff] [blame] | 645 | int kvm_arch_vcpu_postcreate(struct kvm_vcpu *vcpu); |
Hollis Blanchard | d40ccc6 | 2007-11-19 14:04:43 -0600 | [diff] [blame] | 646 | void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu); |
Zhang Xiantao | e9b11c1 | 2007-11-14 20:38:21 +0800 | [diff] [blame] | 647 | |
Radim Krčmář | 13a34e0 | 2014-08-28 15:13:03 +0200 | [diff] [blame] | 648 | int kvm_arch_hardware_enable(void); |
| 649 | void kvm_arch_hardware_disable(void); |
Zhang Xiantao | e9b11c1 | 2007-11-14 20:38:21 +0800 | [diff] [blame] | 650 | int kvm_arch_hardware_setup(void); |
| 651 | void kvm_arch_hardware_unsetup(void); |
| 652 | void kvm_arch_check_processor_compat(void *rtn); |
Zhang Xiantao | 1d737c8 | 2007-12-14 09:35:10 +0800 | [diff] [blame] | 653 | int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu); |
Christoffer Dall | b6d3383 | 2012-03-08 16:44:24 -0500 | [diff] [blame] | 654 | int kvm_arch_vcpu_should_kick(struct kvm_vcpu *vcpu); |
Zhang Xiantao | e9b11c1 | 2007-11-14 20:38:21 +0800 | [diff] [blame] | 655 | |
Takuya Yoshikawa | c1a7b32 | 2012-05-20 13:15:07 +0900 | [diff] [blame] | 656 | void *kvm_kvzalloc(unsigned long size); |
| 657 | void kvm_kvfree(const void *addr); |
| 658 | |
Jan Kiszka | d89f5ef | 2010-11-09 17:02:49 +0100 | [diff] [blame] | 659 | #ifndef __KVM_HAVE_ARCH_VM_ALLOC |
| 660 | static inline struct kvm *kvm_arch_alloc_vm(void) |
| 661 | { |
| 662 | return kzalloc(sizeof(struct kvm), GFP_KERNEL); |
| 663 | } |
| 664 | |
| 665 | static inline void kvm_arch_free_vm(struct kvm *kvm) |
| 666 | { |
| 667 | kfree(kvm); |
| 668 | } |
| 669 | #endif |
| 670 | |
Alex Williamson | e0f0bbc | 2013-10-30 11:02:30 -0600 | [diff] [blame] | 671 | #ifdef __KVM_HAVE_ARCH_NONCOHERENT_DMA |
| 672 | void kvm_arch_register_noncoherent_dma(struct kvm *kvm); |
| 673 | void kvm_arch_unregister_noncoherent_dma(struct kvm *kvm); |
| 674 | bool kvm_arch_has_noncoherent_dma(struct kvm *kvm); |
| 675 | #else |
| 676 | static inline void kvm_arch_register_noncoherent_dma(struct kvm *kvm) |
| 677 | { |
| 678 | } |
| 679 | |
| 680 | static inline void kvm_arch_unregister_noncoherent_dma(struct kvm *kvm) |
| 681 | { |
| 682 | } |
| 683 | |
| 684 | static inline bool kvm_arch_has_noncoherent_dma(struct kvm *kvm) |
| 685 | { |
| 686 | return false; |
| 687 | } |
| 688 | #endif |
| 689 | |
Christoffer Dall | b6d3383 | 2012-03-08 16:44:24 -0500 | [diff] [blame] | 690 | static inline wait_queue_head_t *kvm_arch_vcpu_wq(struct kvm_vcpu *vcpu) |
| 691 | { |
Alexander Graf | 2246f8b | 2012-03-13 22:35:01 +0100 | [diff] [blame] | 692 | #ifdef __KVM_HAVE_ARCH_WQP |
| 693 | return vcpu->arch.wqp; |
| 694 | #else |
Christoffer Dall | b6d3383 | 2012-03-08 16:44:24 -0500 | [diff] [blame] | 695 | return &vcpu->wq; |
Christoffer Dall | b6d3383 | 2012-03-08 16:44:24 -0500 | [diff] [blame] | 696 | #endif |
Alexander Graf | 2246f8b | 2012-03-13 22:35:01 +0100 | [diff] [blame] | 697 | } |
Christoffer Dall | b6d3383 | 2012-03-08 16:44:24 -0500 | [diff] [blame] | 698 | |
Carsten Otte | e08b963 | 2012-01-04 10:25:20 +0100 | [diff] [blame] | 699 | int kvm_arch_init_vm(struct kvm *kvm, unsigned long type); |
Zhang Xiantao | d19a9cd | 2007-11-18 18:43:45 +0800 | [diff] [blame] | 700 | void kvm_arch_destroy_vm(struct kvm *kvm); |
Sheng Yang | ad8ba2c | 2009-01-06 10:03:02 +0800 | [diff] [blame] | 701 | void kvm_arch_sync_events(struct kvm *kvm); |
Zhang Xiantao | e9b11c1 | 2007-11-14 20:38:21 +0800 | [diff] [blame] | 702 | |
Marcelo Tosatti | 3d80840 | 2008-04-11 14:53:26 -0300 | [diff] [blame] | 703 | int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu); |
Zhang Xiantao | 5736199 | 2007-12-17 14:21:40 +0800 | [diff] [blame] | 704 | void kvm_vcpu_kick(struct kvm_vcpu *vcpu); |
Zhang Xiantao | 682c59a | 2007-12-11 20:36:00 +0800 | [diff] [blame] | 705 | |
Xiao Guangrong | a276632 | 2012-07-26 11:58:59 +0800 | [diff] [blame] | 706 | bool kvm_is_mmio_pfn(pfn_t pfn); |
Xiantao Zhang | c77fb9d | 2008-09-27 10:55:40 +0800 | [diff] [blame] | 707 | |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 708 | struct kvm_irq_ack_notifier { |
| 709 | struct hlist_node link; |
| 710 | unsigned gsi; |
| 711 | void (*irq_acked)(struct kvm_irq_ack_notifier *kian); |
| 712 | }; |
| 713 | |
| 714 | struct kvm_assigned_dev_kernel { |
| 715 | struct kvm_irq_ack_notifier ack_notifier; |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 716 | struct list_head list; |
| 717 | int assigned_dev_id; |
Zhai, Edwin | ab9f4ec | 2010-01-29 14:38:44 +0800 | [diff] [blame] | 718 | int host_segnr; |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 719 | int host_busnr; |
| 720 | int host_devfn; |
Sheng Yang | c1e0151 | 2009-02-25 17:22:26 +0800 | [diff] [blame] | 721 | unsigned int entries_nr; |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 722 | int host_irq; |
Mark McLoughlin | defaf15 | 2008-12-02 12:16:33 +0000 | [diff] [blame] | 723 | bool host_irq_disabled; |
Jan Kiszka | 07700a9 | 2012-02-28 14:19:54 +0100 | [diff] [blame] | 724 | bool pci_2_3; |
Sheng Yang | c1e0151 | 2009-02-25 17:22:26 +0800 | [diff] [blame] | 725 | struct msix_entry *host_msix_entries; |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 726 | int guest_irq; |
Jan Kiszka | 0645211 | 2010-11-16 22:30:03 +0100 | [diff] [blame] | 727 | struct msix_entry *guest_msix_entries; |
Sheng Yang | 4f906c1 | 2008-11-24 14:32:51 +0800 | [diff] [blame] | 728 | unsigned long irq_requested_type; |
Sheng Yang | 5550af4 | 2008-10-15 20:15:06 +0800 | [diff] [blame] | 729 | int irq_source_id; |
Weidong Han | b653574 | 2008-12-08 23:29:53 +0800 | [diff] [blame] | 730 | int flags; |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 731 | struct pci_dev *dev; |
| 732 | struct kvm *kvm; |
Jan Kiszka | 0645211 | 2010-11-16 22:30:03 +0100 | [diff] [blame] | 733 | spinlock_t intx_lock; |
Jan Kiszka | cf9eeac | 2012-03-14 11:02:11 +0100 | [diff] [blame] | 734 | spinlock_t intx_mask_lock; |
Jan Kiszka | 1e001d4 | 2010-11-16 22:30:04 +0100 | [diff] [blame] | 735 | char irq_name[32]; |
Alex Williamson | f8fcfd7 | 2011-05-10 10:02:39 -0600 | [diff] [blame] | 736 | struct pci_saved_state *pci_saved_state; |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 737 | }; |
Avi Kivity | 75858a8 | 2009-01-04 17:10:50 +0200 | [diff] [blame] | 738 | |
| 739 | struct kvm_irq_mask_notifier { |
| 740 | void (*func)(struct kvm_irq_mask_notifier *kimn, bool masked); |
| 741 | int irq; |
| 742 | struct hlist_node link; |
| 743 | }; |
| 744 | |
| 745 | void kvm_register_irq_mask_notifier(struct kvm *kvm, int irq, |
| 746 | struct kvm_irq_mask_notifier *kimn); |
| 747 | void kvm_unregister_irq_mask_notifier(struct kvm *kvm, int irq, |
| 748 | struct kvm_irq_mask_notifier *kimn); |
Gleb Natapov | 4a99435 | 2010-07-11 15:32:23 +0300 | [diff] [blame] | 749 | void kvm_fire_mask_notifiers(struct kvm *kvm, unsigned irqchip, unsigned pin, |
| 750 | bool mask); |
Avi Kivity | 75858a8 | 2009-01-04 17:10:50 +0200 | [diff] [blame] | 751 | |
Paul Mackerras | 9957c86 | 2014-06-30 20:51:11 +1000 | [diff] [blame] | 752 | int kvm_irq_map_gsi(struct kvm *kvm, |
| 753 | struct kvm_kernel_irq_routing_entry *entries, int gsi); |
| 754 | int kvm_irq_map_chip_pin(struct kvm *kvm, unsigned irqchip, unsigned pin); |
Paul Mackerras | 8ba918d | 2014-06-30 20:51:10 +1000 | [diff] [blame] | 755 | |
Yang Zhang | aa2fbe6 | 2013-04-11 19:21:40 +0800 | [diff] [blame] | 756 | int kvm_set_irq(struct kvm *kvm, int irq_source_id, u32 irq, int level, |
| 757 | bool line_status); |
Michael S. Tsirkin | 01f2188 | 2012-10-17 18:06:02 +0200 | [diff] [blame] | 758 | int kvm_set_irq_inatomic(struct kvm *kvm, int irq_source_id, u32 irq, int level); |
Michael S. Tsirkin | bd2b53b | 2010-11-18 19:09:08 +0200 | [diff] [blame] | 759 | int kvm_set_msi(struct kvm_kernel_irq_routing_entry *irq_entry, struct kvm *kvm, |
Yang Zhang | aa2fbe6 | 2013-04-11 19:21:40 +0800 | [diff] [blame] | 760 | int irq_source_id, int level, bool line_status); |
Yang Zhang | c7c9c56 | 2013-01-25 10:18:51 +0800 | [diff] [blame] | 761 | bool kvm_irq_has_notifier(struct kvm *kvm, unsigned irqchip, unsigned pin); |
Marcelo Tosatti | 44882ee | 2009-01-27 15:12:38 -0200 | [diff] [blame] | 762 | void kvm_notify_acked_irq(struct kvm *kvm, unsigned irqchip, unsigned pin); |
Xiantao Zhang | 3de42dc | 2008-10-06 13:48:45 +0800 | [diff] [blame] | 763 | void kvm_register_irq_ack_notifier(struct kvm *kvm, |
| 764 | struct kvm_irq_ack_notifier *kian); |
Marcelo Tosatti | fa40a82 | 2009-06-04 15:08:24 -0300 | [diff] [blame] | 765 | void kvm_unregister_irq_ack_notifier(struct kvm *kvm, |
| 766 | struct kvm_irq_ack_notifier *kian); |
Sheng Yang | 5550af4 | 2008-10-15 20:15:06 +0800 | [diff] [blame] | 767 | int kvm_request_irq_source_id(struct kvm *kvm); |
| 768 | 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] | 769 | |
Alex Williamson | 2a5bab1 | 2013-04-16 13:49:18 -0600 | [diff] [blame] | 770 | #ifdef CONFIG_KVM_DEVICE_ASSIGNMENT |
Marcelo Tosatti | 3ad26d8 | 2009-12-23 14:35:20 -0200 | [diff] [blame] | 771 | 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] | 772 | 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] | 773 | int kvm_iommu_map_guest(struct kvm *kvm); |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 774 | int kvm_iommu_unmap_guest(struct kvm *kvm); |
Weidong Han | 260782b | 2008-12-02 21:03:39 +0800 | [diff] [blame] | 775 | int kvm_assign_device(struct kvm *kvm, |
| 776 | struct kvm_assigned_dev_kernel *assigned_dev); |
Weidong Han | 0a92035 | 2008-12-02 21:24:23 +0800 | [diff] [blame] | 777 | int kvm_deassign_device(struct kvm *kvm, |
| 778 | struct kvm_assigned_dev_kernel *assigned_dev); |
Alex Williamson | 2a5bab1 | 2013-04-16 13:49:18 -0600 | [diff] [blame] | 779 | #else |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 780 | static inline int kvm_iommu_map_pages(struct kvm *kvm, |
Jan Kiszka | d7a79b6 | 2010-10-14 13:59:04 +0200 | [diff] [blame] | 781 | struct kvm_memory_slot *slot) |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 782 | { |
| 783 | return 0; |
| 784 | } |
| 785 | |
Alex Williamson | 32f6daa | 2012-04-11 09:51:49 -0600 | [diff] [blame] | 786 | static inline void kvm_iommu_unmap_pages(struct kvm *kvm, |
| 787 | struct kvm_memory_slot *slot) |
| 788 | { |
| 789 | } |
| 790 | |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 791 | static inline int kvm_iommu_unmap_guest(struct kvm *kvm) |
| 792 | { |
| 793 | return 0; |
| 794 | } |
Alex Williamson | 2a5bab1 | 2013-04-16 13:49:18 -0600 | [diff] [blame] | 795 | #endif |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 796 | |
Frederic Weisbecker | c11f11f | 2013-01-21 00:50:22 +0100 | [diff] [blame] | 797 | static inline void kvm_guest_enter(void) |
| 798 | { |
| 799 | unsigned long flags; |
| 800 | |
| 801 | BUG_ON(preemptible()); |
| 802 | |
| 803 | local_irq_save(flags); |
| 804 | guest_enter(); |
| 805 | local_irq_restore(flags); |
| 806 | |
Gleb Natapov | 8fa2206 | 2011-05-04 16:31:04 +0300 | [diff] [blame] | 807 | /* KVM does not hold any references to rcu protected data when it |
| 808 | * switches CPU into a guest mode. In fact switching to a guest mode |
Michael S. Tsirkin | 81e87e2 | 2013-10-30 21:43:01 +0200 | [diff] [blame] | 809 | * is very similar to exiting to userspace from rcu point of view. In |
Gleb Natapov | 8fa2206 | 2011-05-04 16:31:04 +0300 | [diff] [blame] | 810 | * addition CPU may stay in a guest mode for quite a long time (up to |
| 811 | * one time slice). Lets treat guest mode as quiescent state, just like |
| 812 | * we do with user-mode execution. |
| 813 | */ |
| 814 | rcu_virt_note_context_switch(smp_processor_id()); |
Laurent Vivier | d172fcd | 2007-10-15 17:00:19 +0200 | [diff] [blame] | 815 | } |
| 816 | |
| 817 | static inline void kvm_guest_exit(void) |
| 818 | { |
Frederic Weisbecker | c11f11f | 2013-01-21 00:50:22 +0100 | [diff] [blame] | 819 | unsigned long flags; |
| 820 | |
| 821 | local_irq_save(flags); |
| 822 | guest_exit(); |
| 823 | local_irq_restore(flags); |
Laurent Vivier | d172fcd | 2007-10-15 17:00:19 +0200 | [diff] [blame] | 824 | } |
| 825 | |
Paul Mackerras | 9d4cba7 | 2012-01-12 20:09:51 +0000 | [diff] [blame] | 826 | /* |
| 827 | * search_memslots() and __gfn_to_memslot() are here because they are |
| 828 | * used in non-modular code in arch/powerpc/kvm/book3s_hv_rm_mmu.c. |
| 829 | * gfn_to_memslot() itself isn't here as an inline because that would |
| 830 | * bloat other code too much. |
| 831 | */ |
| 832 | static inline struct kvm_memory_slot * |
| 833 | search_memslots(struct kvm_memslots *slots, gfn_t gfn) |
| 834 | { |
| 835 | struct kvm_memory_slot *memslot; |
| 836 | |
| 837 | kvm_for_each_memslot(memslot, slots) |
| 838 | if (gfn >= memslot->base_gfn && |
| 839 | gfn < memslot->base_gfn + memslot->npages) |
| 840 | return memslot; |
| 841 | |
| 842 | return NULL; |
| 843 | } |
| 844 | |
| 845 | static inline struct kvm_memory_slot * |
| 846 | __gfn_to_memslot(struct kvm_memslots *slots, gfn_t gfn) |
| 847 | { |
| 848 | return search_memslots(slots, gfn); |
| 849 | } |
| 850 | |
Gavin Shan | 66a0350 | 2012-08-24 16:50:28 +0800 | [diff] [blame] | 851 | static inline unsigned long |
| 852 | __gfn_to_hva_memslot(struct kvm_memory_slot *slot, gfn_t gfn) |
| 853 | { |
| 854 | return slot->userspace_addr + (gfn - slot->base_gfn) * PAGE_SIZE; |
| 855 | } |
| 856 | |
Xiao Guangrong | 0ee8dcb | 2011-03-09 15:41:59 +0800 | [diff] [blame] | 857 | static inline int memslot_id(struct kvm *kvm, gfn_t gfn) |
| 858 | { |
| 859 | return gfn_to_memslot(kvm, gfn)->id; |
| 860 | } |
| 861 | |
Takuya Yoshikawa | d19a748 | 2012-07-02 17:54:30 +0900 | [diff] [blame] | 862 | static inline gfn_t |
| 863 | hva_to_gfn_memslot(unsigned long hva, struct kvm_memory_slot *slot) |
Xiao Guangrong | 887c08a | 2010-08-22 19:10:28 +0800 | [diff] [blame] | 864 | { |
Takuya Yoshikawa | d19a748 | 2012-07-02 17:54:30 +0900 | [diff] [blame] | 865 | gfn_t gfn_offset = (hva - slot->userspace_addr) >> PAGE_SHIFT; |
| 866 | |
| 867 | return slot->base_gfn + gfn_offset; |
Xiao Guangrong | 887c08a | 2010-08-22 19:10:28 +0800 | [diff] [blame] | 868 | } |
| 869 | |
Avi Kivity | 1755fbc | 2007-11-21 14:44:45 +0200 | [diff] [blame] | 870 | static inline gpa_t gfn_to_gpa(gfn_t gfn) |
| 871 | { |
| 872 | return (gpa_t)gfn << PAGE_SHIFT; |
| 873 | } |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 874 | |
Joerg Roedel | c30a358 | 2010-09-10 17:30:48 +0200 | [diff] [blame] | 875 | static inline gfn_t gpa_to_gfn(gpa_t gpa) |
| 876 | { |
| 877 | return (gfn_t)(gpa >> PAGE_SHIFT); |
| 878 | } |
| 879 | |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 880 | static inline hpa_t pfn_to_hpa(pfn_t pfn) |
| 881 | { |
| 882 | return (hpa_t)pfn << PAGE_SHIFT; |
| 883 | } |
| 884 | |
Heiko Carstens | dfeec84 | 2014-01-01 16:09:21 +0100 | [diff] [blame] | 885 | static inline bool kvm_is_error_gpa(struct kvm *kvm, gpa_t gpa) |
| 886 | { |
| 887 | unsigned long hva = gfn_to_hva(kvm, gpa_to_gfn(gpa)); |
| 888 | |
| 889 | return kvm_is_error_hva(hva); |
| 890 | } |
| 891 | |
Marcelo Tosatti | 2f59971 | 2008-05-27 12:10:20 -0300 | [diff] [blame] | 892 | static inline void kvm_migrate_timers(struct kvm_vcpu *vcpu) |
Avi Kivity | 2f52d58 | 2008-01-16 12:49:30 +0200 | [diff] [blame] | 893 | { |
| 894 | set_bit(KVM_REQ_MIGRATE_TIMER, &vcpu->requests); |
| 895 | } |
| 896 | |
Avi Kivity | ba1389b | 2007-11-18 16:24:12 +0200 | [diff] [blame] | 897 | enum kvm_stat_kind { |
| 898 | KVM_STAT_VM, |
| 899 | KVM_STAT_VCPU, |
| 900 | }; |
| 901 | |
Hollis Blanchard | 417bc30 | 2007-10-31 17:24:23 -0500 | [diff] [blame] | 902 | struct kvm_stats_debugfs_item { |
| 903 | const char *name; |
| 904 | int offset; |
Avi Kivity | ba1389b | 2007-11-18 16:24:12 +0200 | [diff] [blame] | 905 | enum kvm_stat_kind kind; |
Hollis Blanchard | 417bc30 | 2007-10-31 17:24:23 -0500 | [diff] [blame] | 906 | struct dentry *dentry; |
| 907 | }; |
| 908 | extern struct kvm_stats_debugfs_item debugfs_entries[]; |
Hollis Blanchard | 76f7c87 | 2008-04-15 16:05:42 -0500 | [diff] [blame] | 909 | extern struct dentry *kvm_debugfs_dir; |
Feng(Eric) Liu | d4c9ff2 | 2008-04-10 08:47:53 -0400 | [diff] [blame] | 910 | |
Marc Zyngier | 36c1ed8 | 2012-06-15 15:07:24 -0400 | [diff] [blame] | 911 | #if defined(CONFIG_MMU_NOTIFIER) && defined(KVM_ARCH_WANT_MMU_NOTIFIER) |
Christoffer Dall | 8ca40a7 | 2012-10-14 23:10:18 -0400 | [diff] [blame] | 912 | static inline int mmu_notifier_retry(struct kvm *kvm, unsigned long mmu_seq) |
Andrea Arcangeli | e930bff | 2008-07-25 16:24:52 +0200 | [diff] [blame] | 913 | { |
Christoffer Dall | 8ca40a7 | 2012-10-14 23:10:18 -0400 | [diff] [blame] | 914 | if (unlikely(kvm->mmu_notifier_count)) |
Andrea Arcangeli | e930bff | 2008-07-25 16:24:52 +0200 | [diff] [blame] | 915 | return 1; |
| 916 | /* |
Paul Mackerras | a355aa5 | 2011-12-12 12:37:21 +0000 | [diff] [blame] | 917 | * Ensure the read of mmu_notifier_count happens before the read |
| 918 | * of mmu_notifier_seq. This interacts with the smp_wmb() in |
| 919 | * mmu_notifier_invalidate_range_end to make sure that the caller |
| 920 | * either sees the old (non-zero) value of mmu_notifier_count or |
| 921 | * the new (incremented) value of mmu_notifier_seq. |
| 922 | * PowerPC Book3s HV KVM calls this under a per-page lock |
| 923 | * rather than under kvm->mmu_lock, for scalability, so |
| 924 | * can't rely on kvm->mmu_lock to keep things ordered. |
Andrea Arcangeli | e930bff | 2008-07-25 16:24:52 +0200 | [diff] [blame] | 925 | */ |
Paul Mackerras | a355aa5 | 2011-12-12 12:37:21 +0000 | [diff] [blame] | 926 | smp_rmb(); |
Christoffer Dall | 8ca40a7 | 2012-10-14 23:10:18 -0400 | [diff] [blame] | 927 | if (kvm->mmu_notifier_seq != mmu_seq) |
Andrea Arcangeli | e930bff | 2008-07-25 16:24:52 +0200 | [diff] [blame] | 928 | return 1; |
| 929 | return 0; |
| 930 | } |
| 931 | #endif |
| 932 | |
Alexander Graf | a725d56 | 2013-04-17 13:29:30 +0200 | [diff] [blame] | 933 | #ifdef CONFIG_HAVE_KVM_IRQ_ROUTING |
Avi Kivity | 399ec80 | 2008-11-19 13:58:46 +0200 | [diff] [blame] | 934 | |
Cornelia Huck | f3f710b | 2014-02-25 12:48:01 +0100 | [diff] [blame] | 935 | #ifdef CONFIG_S390 |
| 936 | #define KVM_MAX_IRQ_ROUTES 4096 //FIXME: we can have more than that... |
| 937 | #else |
Avi Kivity | 399ec80 | 2008-11-19 13:58:46 +0200 | [diff] [blame] | 938 | #define KVM_MAX_IRQ_ROUTES 1024 |
Cornelia Huck | f3f710b | 2014-02-25 12:48:01 +0100 | [diff] [blame] | 939 | #endif |
Avi Kivity | 399ec80 | 2008-11-19 13:58:46 +0200 | [diff] [blame] | 940 | |
| 941 | int kvm_setup_default_irq_routing(struct kvm *kvm); |
| 942 | int kvm_set_irq_routing(struct kvm *kvm, |
| 943 | const struct kvm_irq_routing_entry *entries, |
| 944 | unsigned nr, |
| 945 | unsigned flags); |
Paul Mackerras | 8ba918d | 2014-06-30 20:51:10 +1000 | [diff] [blame] | 946 | int kvm_set_routing_entry(struct kvm_kernel_irq_routing_entry *e, |
Alexander Graf | e8cde09 | 2013-04-15 23:23:21 +0200 | [diff] [blame] | 947 | const struct kvm_irq_routing_entry *ue); |
Avi Kivity | 399ec80 | 2008-11-19 13:58:46 +0200 | [diff] [blame] | 948 | void kvm_free_irq_routing(struct kvm *kvm); |
| 949 | |
| 950 | #else |
| 951 | |
| 952 | static inline void kvm_free_irq_routing(struct kvm *kvm) {} |
| 953 | |
| 954 | #endif |
| 955 | |
Paul Mackerras | 297e210 | 2014-06-30 20:51:13 +1000 | [diff] [blame] | 956 | int kvm_send_userspace_msi(struct kvm *kvm, struct kvm_msi *msi); |
| 957 | |
Gregory Haskins | 721eecb | 2009-05-20 10:30:49 -0400 | [diff] [blame] | 958 | #ifdef CONFIG_HAVE_KVM_EVENTFD |
| 959 | |
Gregory Haskins | d34e6b1 | 2009-07-07 17:08:49 -0400 | [diff] [blame] | 960 | void kvm_eventfd_init(struct kvm *kvm); |
Alexander Graf | 914daba | 2012-10-09 00:22:59 +0200 | [diff] [blame] | 961 | int kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args); |
| 962 | |
Paul Mackerras | 297e210 | 2014-06-30 20:51:13 +1000 | [diff] [blame] | 963 | #ifdef CONFIG_HAVE_KVM_IRQFD |
Alex Williamson | d4db293 | 2012-06-29 09:56:08 -0600 | [diff] [blame] | 964 | int kvm_irqfd(struct kvm *kvm, struct kvm_irqfd *args); |
Gregory Haskins | 721eecb | 2009-05-20 10:30:49 -0400 | [diff] [blame] | 965 | void kvm_irqfd_release(struct kvm *kvm); |
Paul Mackerras | 9957c86 | 2014-06-30 20:51:11 +1000 | [diff] [blame] | 966 | void kvm_irq_routing_update(struct kvm *); |
Alexander Graf | 914daba | 2012-10-09 00:22:59 +0200 | [diff] [blame] | 967 | #else |
| 968 | static inline int kvm_irqfd(struct kvm *kvm, struct kvm_irqfd *args) |
| 969 | { |
| 970 | return -EINVAL; |
| 971 | } |
| 972 | |
| 973 | static inline void kvm_irqfd_release(struct kvm *kvm) {} |
| 974 | #endif |
Gregory Haskins | 721eecb | 2009-05-20 10:30:49 -0400 | [diff] [blame] | 975 | |
| 976 | #else |
| 977 | |
Gregory Haskins | d34e6b1 | 2009-07-07 17:08:49 -0400 | [diff] [blame] | 978 | static inline void kvm_eventfd_init(struct kvm *kvm) {} |
Michael S. Tsirkin | bd2b53b | 2010-11-18 19:09:08 +0200 | [diff] [blame] | 979 | |
Alex Williamson | d4db293 | 2012-06-29 09:56:08 -0600 | [diff] [blame] | 980 | static inline int kvm_irqfd(struct kvm *kvm, struct kvm_irqfd *args) |
Gregory Haskins | 721eecb | 2009-05-20 10:30:49 -0400 | [diff] [blame] | 981 | { |
| 982 | return -EINVAL; |
| 983 | } |
| 984 | |
| 985 | static inline void kvm_irqfd_release(struct kvm *kvm) {} |
Michael S. Tsirkin | bd2b53b | 2010-11-18 19:09:08 +0200 | [diff] [blame] | 986 | |
Alexander Graf | 27923eb | 2010-11-25 10:25:44 +0100 | [diff] [blame] | 987 | #ifdef CONFIG_HAVE_KVM_IRQCHIP |
Paul Mackerras | 9957c86 | 2014-06-30 20:51:11 +1000 | [diff] [blame] | 988 | static inline void kvm_irq_routing_update(struct kvm *kvm) |
Michael S. Tsirkin | bd2b53b | 2010-11-18 19:09:08 +0200 | [diff] [blame] | 989 | { |
Michael S. Tsirkin | bd2b53b | 2010-11-18 19:09:08 +0200 | [diff] [blame] | 990 | } |
Alexander Graf | 27923eb | 2010-11-25 10:25:44 +0100 | [diff] [blame] | 991 | #endif |
Michael S. Tsirkin | bd2b53b | 2010-11-18 19:09:08 +0200 | [diff] [blame] | 992 | |
Gregory Haskins | d34e6b1 | 2009-07-07 17:08:49 -0400 | [diff] [blame] | 993 | static inline int kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args) |
| 994 | { |
| 995 | return -ENOSYS; |
| 996 | } |
Gregory Haskins | 721eecb | 2009-05-20 10:30:49 -0400 | [diff] [blame] | 997 | |
| 998 | #endif /* CONFIG_HAVE_KVM_EVENTFD */ |
| 999 | |
Gleb Natapov | 73880c8 | 2009-06-09 15:56:28 +0300 | [diff] [blame] | 1000 | #ifdef CONFIG_KVM_APIC_ARCHITECTURE |
Gleb Natapov | c5af89b | 2009-06-09 15:56:26 +0300 | [diff] [blame] | 1001 | static inline bool kvm_vcpu_is_bsp(struct kvm_vcpu *vcpu) |
| 1002 | { |
Marcelo Tosatti | d3efc8e | 2009-06-17 10:07:59 -0300 | [diff] [blame] | 1003 | return vcpu->kvm->bsp_vcpu_id == vcpu->vcpu_id; |
Gleb Natapov | c5af89b | 2009-06-09 15:56:26 +0300 | [diff] [blame] | 1004 | } |
Avi Kivity | 3e51570 | 2012-03-05 14:23:29 +0200 | [diff] [blame] | 1005 | |
| 1006 | bool kvm_vcpu_compatible(struct kvm_vcpu *vcpu); |
| 1007 | |
| 1008 | #else |
| 1009 | |
| 1010 | static inline bool kvm_vcpu_compatible(struct kvm_vcpu *vcpu) { return true; } |
| 1011 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 1012 | #endif |
Avi Kivity | bfd99ff | 2009-08-26 14:57:50 +0300 | [diff] [blame] | 1013 | |
Alex Williamson | 2a5bab1 | 2013-04-16 13:49:18 -0600 | [diff] [blame] | 1014 | #ifdef CONFIG_KVM_DEVICE_ASSIGNMENT |
Avi Kivity | bfd99ff | 2009-08-26 14:57:50 +0300 | [diff] [blame] | 1015 | |
| 1016 | long kvm_vm_ioctl_assigned_device(struct kvm *kvm, unsigned ioctl, |
| 1017 | unsigned long arg); |
| 1018 | |
Alex Williamson | 2a5bab1 | 2013-04-16 13:49:18 -0600 | [diff] [blame] | 1019 | void kvm_free_all_assigned_devices(struct kvm *kvm); |
| 1020 | |
Avi Kivity | bfd99ff | 2009-08-26 14:57:50 +0300 | [diff] [blame] | 1021 | #else |
| 1022 | |
| 1023 | static inline long kvm_vm_ioctl_assigned_device(struct kvm *kvm, unsigned ioctl, |
| 1024 | unsigned long arg) |
| 1025 | { |
| 1026 | return -ENOTTY; |
| 1027 | } |
| 1028 | |
Alex Williamson | 2a5bab1 | 2013-04-16 13:49:18 -0600 | [diff] [blame] | 1029 | static inline void kvm_free_all_assigned_devices(struct kvm *kvm) {} |
| 1030 | |
Gleb Natapov | 73880c8 | 2009-06-09 15:56:28 +0300 | [diff] [blame] | 1031 | #endif |
Avi Kivity | bfd99ff | 2009-08-26 14:57:50 +0300 | [diff] [blame] | 1032 | |
Avi Kivity | a8eeb04 | 2010-05-10 12:34:53 +0300 | [diff] [blame] | 1033 | static inline void kvm_make_request(int req, struct kvm_vcpu *vcpu) |
| 1034 | { |
| 1035 | set_bit(req, &vcpu->requests); |
| 1036 | } |
| 1037 | |
Avi Kivity | a8eeb04 | 2010-05-10 12:34:53 +0300 | [diff] [blame] | 1038 | static inline bool kvm_check_request(int req, struct kvm_vcpu *vcpu) |
| 1039 | { |
Avi Kivity | 0719837 | 2010-05-10 13:08:26 +0300 | [diff] [blame] | 1040 | if (test_bit(req, &vcpu->requests)) { |
| 1041 | clear_bit(req, &vcpu->requests); |
| 1042 | return true; |
| 1043 | } else { |
| 1044 | return false; |
| 1045 | } |
Avi Kivity | a8eeb04 | 2010-05-10 12:34:53 +0300 | [diff] [blame] | 1046 | } |
| 1047 | |
Geoff Levand | 8b415dc | 2013-04-05 19:20:30 +0000 | [diff] [blame] | 1048 | extern bool kvm_rebooting; |
| 1049 | |
Scott Wood | 852b6d5 | 2013-04-12 14:08:42 +0000 | [diff] [blame] | 1050 | struct kvm_device { |
| 1051 | struct kvm_device_ops *ops; |
| 1052 | struct kvm *kvm; |
Scott Wood | 852b6d5 | 2013-04-12 14:08:42 +0000 | [diff] [blame] | 1053 | void *private; |
Scott Wood | 07f0a7b | 2013-04-25 14:11:23 +0000 | [diff] [blame] | 1054 | struct list_head vm_node; |
Scott Wood | 852b6d5 | 2013-04-12 14:08:42 +0000 | [diff] [blame] | 1055 | }; |
| 1056 | |
| 1057 | /* create, destroy, and name are mandatory */ |
| 1058 | struct kvm_device_ops { |
| 1059 | const char *name; |
| 1060 | int (*create)(struct kvm_device *dev, u32 type); |
| 1061 | |
| 1062 | /* |
| 1063 | * Destroy is responsible for freeing dev. |
| 1064 | * |
| 1065 | * Destroy may be called before or after destructors are called |
| 1066 | * on emulated I/O regions, depending on whether a reference is |
| 1067 | * held by a vcpu or other kvm component that gets destroyed |
| 1068 | * after the emulated I/O. |
| 1069 | */ |
| 1070 | void (*destroy)(struct kvm_device *dev); |
| 1071 | |
| 1072 | int (*set_attr)(struct kvm_device *dev, struct kvm_device_attr *attr); |
| 1073 | int (*get_attr)(struct kvm_device *dev, struct kvm_device_attr *attr); |
| 1074 | int (*has_attr)(struct kvm_device *dev, struct kvm_device_attr *attr); |
| 1075 | long (*ioctl)(struct kvm_device *dev, unsigned int ioctl, |
| 1076 | unsigned long arg); |
| 1077 | }; |
| 1078 | |
| 1079 | void kvm_device_get(struct kvm_device *dev); |
| 1080 | void kvm_device_put(struct kvm_device *dev); |
| 1081 | struct kvm_device *kvm_device_from_filp(struct file *filp); |
Will Deacon | d60eacb | 2014-09-02 10:27:33 +0100 | [diff] [blame] | 1082 | int kvm_register_device_ops(struct kvm_device_ops *ops, u32 type); |
Scott Wood | 852b6d5 | 2013-04-12 14:08:42 +0000 | [diff] [blame] | 1083 | |
Scott Wood | 5df554a | 2013-04-12 14:08:46 +0000 | [diff] [blame] | 1084 | extern struct kvm_device_ops kvm_mpic_ops; |
Paul Mackerras | 5975a2e | 2013-04-27 00:28:37 +0000 | [diff] [blame] | 1085 | extern struct kvm_device_ops kvm_xics_ops; |
Scott Wood | 5df554a | 2013-04-12 14:08:46 +0000 | [diff] [blame] | 1086 | |
Raghavendra K T | 4c08849 | 2012-07-18 19:07:46 +0530 | [diff] [blame] | 1087 | #ifdef CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT |
| 1088 | |
| 1089 | static inline void kvm_vcpu_set_in_spin_loop(struct kvm_vcpu *vcpu, bool val) |
| 1090 | { |
| 1091 | vcpu->spin_loop.in_spin_loop = val; |
| 1092 | } |
| 1093 | static inline void kvm_vcpu_set_dy_eligible(struct kvm_vcpu *vcpu, bool val) |
| 1094 | { |
| 1095 | vcpu->spin_loop.dy_eligible = val; |
| 1096 | } |
| 1097 | |
| 1098 | #else /* !CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT */ |
| 1099 | |
| 1100 | static inline void kvm_vcpu_set_in_spin_loop(struct kvm_vcpu *vcpu, bool val) |
| 1101 | { |
| 1102 | } |
| 1103 | |
| 1104 | static inline void kvm_vcpu_set_dy_eligible(struct kvm_vcpu *vcpu, bool val) |
| 1105 | { |
| 1106 | } |
Raghavendra K T | 4c08849 | 2012-07-18 19:07:46 +0530 | [diff] [blame] | 1107 | #endif /* CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT */ |
Avi Kivity | bfd99ff | 2009-08-26 14:57:50 +0300 | [diff] [blame] | 1108 | #endif |
Marcelo Tosatti | 09a6e1f | 2013-03-22 08:08:06 -0300 | [diff] [blame] | 1109 | |