Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1 | /* |
| 2 | * Physical memory management |
| 3 | * |
| 4 | * Copyright 2011 Red Hat, Inc. and/or its affiliates |
| 5 | * |
| 6 | * Authors: |
| 7 | * Avi Kivity <avi@redhat.com> |
| 8 | * |
| 9 | * This work is licensed under the terms of the GNU GPL, version 2. See |
| 10 | * the COPYING file in the top-level directory. |
| 11 | * |
Paolo Bonzini | 6b620ca | 2012-01-13 17:44:23 +0100 | [diff] [blame] | 12 | * Contributions after 2012-01-13 are licensed under the terms of the |
| 13 | * GNU GPL, version 2 or (at your option) any later version. |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 14 | */ |
| 15 | |
Peter Maydell | d38ea87 | 2016-01-29 17:50:05 +0000 | [diff] [blame] | 16 | #include "qemu/osdep.h" |
Markus Armbruster | da34e65 | 2016-03-14 09:01:28 +0100 | [diff] [blame] | 17 | #include "qapi/error.h" |
Paolo Bonzini | 33c1187 | 2016-03-15 16:58:45 +0100 | [diff] [blame] | 18 | #include "qemu-common.h" |
| 19 | #include "cpu.h" |
Paolo Bonzini | 022c62c | 2012-12-17 18:19:49 +0100 | [diff] [blame] | 20 | #include "exec/memory.h" |
| 21 | #include "exec/address-spaces.h" |
| 22 | #include "exec/ioport.h" |
Peter Crosthwaite | 409ddd0 | 2014-06-05 23:16:27 -0700 | [diff] [blame] | 23 | #include "qapi/visitor.h" |
Paolo Bonzini | 1de7afc | 2012-12-17 18:20:00 +0100 | [diff] [blame] | 24 | #include "qemu/bitops.h" |
Pavel Fedin | 8c56c1a | 2015-11-20 12:37:16 +0300 | [diff] [blame] | 25 | #include "qemu/error-report.h" |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 26 | #include "qom/object.h" |
Daniel P. Berrange | 0ab8ed1 | 2017-01-25 16:14:15 +0000 | [diff] [blame] | 27 | #include "trace-root.h" |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 28 | |
Paolo Bonzini | 022c62c | 2012-12-17 18:19:49 +0100 | [diff] [blame] | 29 | #include "exec/memory-internal.h" |
Juan Quintela | 220c3eb | 2013-10-14 17:13:59 +0200 | [diff] [blame] | 30 | #include "exec/ram_addr.h" |
Pavel Fedin | 8c56c1a | 2015-11-20 12:37:16 +0300 | [diff] [blame] | 31 | #include "sysemu/kvm.h" |
Paolo Bonzini | e1c57ab | 2014-05-14 17:43:18 +0800 | [diff] [blame] | 32 | #include "sysemu/sysemu.h" |
KONRAD Frederic | c935674 | 2016-10-19 15:06:49 +0200 | [diff] [blame] | 33 | #include "hw/misc/mmio_interface.h" |
| 34 | #include "hw/qdev-properties.h" |
Peter Maydell | b08199c | 2017-07-07 15:42:51 +0100 | [diff] [blame] | 35 | #include "migration/vmstate.h" |
Avi Kivity | 67d95c1 | 2011-12-15 15:25:22 +0200 | [diff] [blame] | 36 | |
Paolo Bonzini | d197063 | 2013-05-24 13:23:38 +0200 | [diff] [blame] | 37 | //#define DEBUG_UNASSIGNED |
| 38 | |
Jan Kiszka | 22bde71 | 2012-11-05 16:45:56 +0100 | [diff] [blame] | 39 | static unsigned memory_region_transaction_depth; |
| 40 | static bool memory_region_update_pending; |
Gonglei | 4dc5615 | 2014-05-08 11:47:32 +0800 | [diff] [blame] | 41 | static bool ioeventfd_update_pending; |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 42 | static bool global_dirty_log = false; |
| 43 | |
Avi Kivity | 72e22d2 | 2012-02-08 15:05:50 +0200 | [diff] [blame] | 44 | static QTAILQ_HEAD(memory_listeners, MemoryListener) memory_listeners |
| 45 | = QTAILQ_HEAD_INITIALIZER(memory_listeners); |
Avi Kivity | 4ef4db8 | 2011-07-26 14:26:13 +0300 | [diff] [blame] | 46 | |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 47 | static QTAILQ_HEAD(, AddressSpace) address_spaces |
| 48 | = QTAILQ_HEAD_INITIALIZER(address_spaces); |
| 49 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 50 | typedef struct AddrRange AddrRange; |
| 51 | |
Avi Kivity | 8417ceb | 2011-08-03 11:56:14 +0300 | [diff] [blame] | 52 | /* |
Fam Zheng | c9cdaa3 | 2014-08-11 10:18:31 +0800 | [diff] [blame] | 53 | * Note that signed integers are needed for negative offsetting in aliases |
Avi Kivity | 8417ceb | 2011-08-03 11:56:14 +0300 | [diff] [blame] | 54 | * (large MemoryRegion::alias_offset). |
| 55 | */ |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 56 | struct AddrRange { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 57 | Int128 start; |
| 58 | Int128 size; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 59 | }; |
| 60 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 61 | static AddrRange addrrange_make(Int128 start, Int128 size) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 62 | { |
| 63 | return (AddrRange) { start, size }; |
| 64 | } |
| 65 | |
| 66 | static bool addrrange_equal(AddrRange r1, AddrRange r2) |
| 67 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 68 | return int128_eq(r1.start, r2.start) && int128_eq(r1.size, r2.size); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 69 | } |
| 70 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 71 | static Int128 addrrange_end(AddrRange r) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 72 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 73 | return int128_add(r.start, r.size); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 74 | } |
| 75 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 76 | static AddrRange addrrange_shift(AddrRange range, Int128 delta) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 77 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 78 | int128_addto(&range.start, delta); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 79 | return range; |
| 80 | } |
| 81 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 82 | static bool addrrange_contains(AddrRange range, Int128 addr) |
| 83 | { |
| 84 | return int128_ge(addr, range.start) |
| 85 | && int128_lt(addr, addrrange_end(range)); |
| 86 | } |
| 87 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 88 | static bool addrrange_intersects(AddrRange r1, AddrRange r2) |
| 89 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 90 | return addrrange_contains(r1, r2.start) |
| 91 | || addrrange_contains(r2, r1.start); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 92 | } |
| 93 | |
| 94 | static AddrRange addrrange_intersection(AddrRange r1, AddrRange r2) |
| 95 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 96 | Int128 start = int128_max(r1.start, r2.start); |
| 97 | Int128 end = int128_min(addrrange_end(r1), addrrange_end(r2)); |
| 98 | return addrrange_make(start, int128_sub(end, start)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 99 | } |
| 100 | |
Avi Kivity | 0e0d36b | 2012-02-08 16:39:45 +0200 | [diff] [blame] | 101 | enum ListenerDirection { Forward, Reverse }; |
| 102 | |
Avi Kivity | 7376e58 | 2012-02-08 21:05:17 +0200 | [diff] [blame] | 103 | #define MEMORY_LISTENER_CALL_GLOBAL(_callback, _direction, _args...) \ |
Avi Kivity | 0e0d36b | 2012-02-08 16:39:45 +0200 | [diff] [blame] | 104 | do { \ |
| 105 | MemoryListener *_listener; \ |
| 106 | \ |
| 107 | switch (_direction) { \ |
| 108 | case Forward: \ |
| 109 | QTAILQ_FOREACH(_listener, &memory_listeners, link) { \ |
Avi Kivity | 975aefe | 2012-10-02 16:39:57 +0200 | [diff] [blame] | 110 | if (_listener->_callback) { \ |
| 111 | _listener->_callback(_listener, ##_args); \ |
| 112 | } \ |
Avi Kivity | 0e0d36b | 2012-02-08 16:39:45 +0200 | [diff] [blame] | 113 | } \ |
| 114 | break; \ |
| 115 | case Reverse: \ |
| 116 | QTAILQ_FOREACH_REVERSE(_listener, &memory_listeners, \ |
| 117 | memory_listeners, link) { \ |
Avi Kivity | 975aefe | 2012-10-02 16:39:57 +0200 | [diff] [blame] | 118 | if (_listener->_callback) { \ |
| 119 | _listener->_callback(_listener, ##_args); \ |
| 120 | } \ |
Avi Kivity | 0e0d36b | 2012-02-08 16:39:45 +0200 | [diff] [blame] | 121 | } \ |
| 122 | break; \ |
| 123 | default: \ |
| 124 | abort(); \ |
| 125 | } \ |
| 126 | } while (0) |
| 127 | |
Paolo Bonzini | 9a54635 | 2016-09-22 16:23:06 +0200 | [diff] [blame] | 128 | #define MEMORY_LISTENER_CALL(_as, _callback, _direction, _section, _args...) \ |
Avi Kivity | 7376e58 | 2012-02-08 21:05:17 +0200 | [diff] [blame] | 129 | do { \ |
| 130 | MemoryListener *_listener; \ |
Paolo Bonzini | 9a54635 | 2016-09-22 16:23:06 +0200 | [diff] [blame] | 131 | struct memory_listeners_as *list = &(_as)->listeners; \ |
Avi Kivity | 7376e58 | 2012-02-08 21:05:17 +0200 | [diff] [blame] | 132 | \ |
| 133 | switch (_direction) { \ |
| 134 | case Forward: \ |
Paolo Bonzini | 9a54635 | 2016-09-22 16:23:06 +0200 | [diff] [blame] | 135 | QTAILQ_FOREACH(_listener, list, link_as) { \ |
| 136 | if (_listener->_callback) { \ |
Avi Kivity | 7376e58 | 2012-02-08 21:05:17 +0200 | [diff] [blame] | 137 | _listener->_callback(_listener, _section, ##_args); \ |
| 138 | } \ |
| 139 | } \ |
| 140 | break; \ |
| 141 | case Reverse: \ |
Paolo Bonzini | 9a54635 | 2016-09-22 16:23:06 +0200 | [diff] [blame] | 142 | QTAILQ_FOREACH_REVERSE(_listener, list, memory_listeners_as, \ |
| 143 | link_as) { \ |
| 144 | if (_listener->_callback) { \ |
Avi Kivity | 7376e58 | 2012-02-08 21:05:17 +0200 | [diff] [blame] | 145 | _listener->_callback(_listener, _section, ##_args); \ |
| 146 | } \ |
| 147 | } \ |
| 148 | break; \ |
| 149 | default: \ |
| 150 | abort(); \ |
| 151 | } \ |
| 152 | } while (0) |
| 153 | |
Paolo Bonzini | dfde4e6 | 2013-05-06 10:46:11 +0200 | [diff] [blame] | 154 | /* No need to ref/unref .mr, the FlatRange keeps it alive. */ |
Paolo Bonzini | b2dfd71 | 2015-04-25 14:38:30 +0200 | [diff] [blame] | 155 | #define MEMORY_LISTENER_UPDATE_REGION(fr, as, dir, callback, _args...) \ |
Paolo Bonzini | 9c1f8f4 | 2016-09-22 16:08:31 +0200 | [diff] [blame] | 156 | do { \ |
| 157 | MemoryRegionSection mrs = section_from_flat_range(fr, as); \ |
Paolo Bonzini | 9a54635 | 2016-09-22 16:23:06 +0200 | [diff] [blame] | 158 | MEMORY_LISTENER_CALL(as, callback, dir, &mrs, ##_args); \ |
Paolo Bonzini | 9c1f8f4 | 2016-09-22 16:08:31 +0200 | [diff] [blame] | 159 | } while(0) |
Avi Kivity | 0e0d36b | 2012-02-08 16:39:45 +0200 | [diff] [blame] | 160 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 161 | struct CoalescedMemoryRange { |
| 162 | AddrRange addr; |
| 163 | QTAILQ_ENTRY(CoalescedMemoryRange) link; |
| 164 | }; |
| 165 | |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 166 | struct MemoryRegionIoeventfd { |
| 167 | AddrRange addr; |
| 168 | bool match_data; |
| 169 | uint64_t data; |
Paolo Bonzini | 753d5e1 | 2012-07-05 17:16:27 +0200 | [diff] [blame] | 170 | EventNotifier *e; |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 171 | }; |
| 172 | |
| 173 | static bool memory_region_ioeventfd_before(MemoryRegionIoeventfd a, |
| 174 | MemoryRegionIoeventfd b) |
| 175 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 176 | if (int128_lt(a.addr.start, b.addr.start)) { |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 177 | return true; |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 178 | } else if (int128_gt(a.addr.start, b.addr.start)) { |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 179 | return false; |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 180 | } else if (int128_lt(a.addr.size, b.addr.size)) { |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 181 | return true; |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 182 | } else if (int128_gt(a.addr.size, b.addr.size)) { |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 183 | return false; |
| 184 | } else if (a.match_data < b.match_data) { |
| 185 | return true; |
| 186 | } else if (a.match_data > b.match_data) { |
| 187 | return false; |
| 188 | } else if (a.match_data) { |
| 189 | if (a.data < b.data) { |
| 190 | return true; |
| 191 | } else if (a.data > b.data) { |
| 192 | return false; |
| 193 | } |
| 194 | } |
Paolo Bonzini | 753d5e1 | 2012-07-05 17:16:27 +0200 | [diff] [blame] | 195 | if (a.e < b.e) { |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 196 | return true; |
Paolo Bonzini | 753d5e1 | 2012-07-05 17:16:27 +0200 | [diff] [blame] | 197 | } else if (a.e > b.e) { |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 198 | return false; |
| 199 | } |
| 200 | return false; |
| 201 | } |
| 202 | |
| 203 | static bool memory_region_ioeventfd_equal(MemoryRegionIoeventfd a, |
| 204 | MemoryRegionIoeventfd b) |
| 205 | { |
| 206 | return !memory_region_ioeventfd_before(a, b) |
| 207 | && !memory_region_ioeventfd_before(b, a); |
| 208 | } |
| 209 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 210 | typedef struct FlatRange FlatRange; |
| 211 | typedef struct FlatView FlatView; |
| 212 | |
| 213 | /* Range of memory in the global map. Addresses are absolute. */ |
| 214 | struct FlatRange { |
| 215 | MemoryRegion *mr; |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 216 | hwaddr offset_in_region; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 217 | AddrRange addr; |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 218 | uint8_t dirty_log_mask; |
Paolo Bonzini | b138e65 | 2016-05-24 21:26:28 +0200 | [diff] [blame] | 219 | bool romd_mode; |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 220 | bool readonly; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 221 | }; |
| 222 | |
| 223 | /* Flattened global view of current active memory hierarchy. Kept in sorted |
| 224 | * order. |
| 225 | */ |
| 226 | struct FlatView { |
Paolo Bonzini | 374f298 | 2013-05-17 12:37:03 +0200 | [diff] [blame] | 227 | struct rcu_head rcu; |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 228 | unsigned ref; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 229 | FlatRange *ranges; |
| 230 | unsigned nr; |
| 231 | unsigned nr_allocated; |
| 232 | }; |
| 233 | |
Avi Kivity | cc31e6e | 2011-07-26 14:26:05 +0300 | [diff] [blame] | 234 | typedef struct AddressSpaceOps AddressSpaceOps; |
| 235 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 236 | #define FOR_EACH_FLAT_RANGE(var, view) \ |
| 237 | for (var = (view)->ranges; var < (view)->ranges + (view)->nr; ++var) |
| 238 | |
Paolo Bonzini | 9c1f8f4 | 2016-09-22 16:08:31 +0200 | [diff] [blame] | 239 | static inline MemoryRegionSection |
| 240 | section_from_flat_range(FlatRange *fr, AddressSpace *as) |
| 241 | { |
| 242 | return (MemoryRegionSection) { |
| 243 | .mr = fr->mr, |
| 244 | .address_space = as, |
| 245 | .offset_within_region = fr->offset_in_region, |
| 246 | .size = fr->addr.size, |
| 247 | .offset_within_address_space = int128_get64(fr->addr.start), |
| 248 | .readonly = fr->readonly, |
| 249 | }; |
| 250 | } |
| 251 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 252 | static bool flatrange_equal(FlatRange *a, FlatRange *b) |
| 253 | { |
| 254 | return a->mr == b->mr |
| 255 | && addrrange_equal(a->addr, b->addr) |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 256 | && a->offset_in_region == b->offset_in_region |
Paolo Bonzini | b138e65 | 2016-05-24 21:26:28 +0200 | [diff] [blame] | 257 | && a->romd_mode == b->romd_mode |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 258 | && a->readonly == b->readonly; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 259 | } |
| 260 | |
| 261 | static void flatview_init(FlatView *view) |
| 262 | { |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 263 | view->ref = 1; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 264 | view->ranges = NULL; |
| 265 | view->nr = 0; |
| 266 | view->nr_allocated = 0; |
| 267 | } |
| 268 | |
| 269 | /* Insert a range into a given position. Caller is responsible for maintaining |
| 270 | * sorting order. |
| 271 | */ |
| 272 | static void flatview_insert(FlatView *view, unsigned pos, FlatRange *range) |
| 273 | { |
| 274 | if (view->nr == view->nr_allocated) { |
| 275 | view->nr_allocated = MAX(2 * view->nr, 10); |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 276 | view->ranges = g_realloc(view->ranges, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 277 | view->nr_allocated * sizeof(*view->ranges)); |
| 278 | } |
| 279 | memmove(view->ranges + pos + 1, view->ranges + pos, |
| 280 | (view->nr - pos) * sizeof(FlatRange)); |
| 281 | view->ranges[pos] = *range; |
Paolo Bonzini | dfde4e6 | 2013-05-06 10:46:11 +0200 | [diff] [blame] | 282 | memory_region_ref(range->mr); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 283 | ++view->nr; |
| 284 | } |
| 285 | |
| 286 | static void flatview_destroy(FlatView *view) |
| 287 | { |
Paolo Bonzini | dfde4e6 | 2013-05-06 10:46:11 +0200 | [diff] [blame] | 288 | int i; |
| 289 | |
| 290 | for (i = 0; i < view->nr; i++) { |
| 291 | memory_region_unref(view->ranges[i].mr); |
| 292 | } |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 293 | g_free(view->ranges); |
Paolo Bonzini | a9a0c06 | 2013-05-06 10:29:07 +0200 | [diff] [blame] | 294 | g_free(view); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 295 | } |
| 296 | |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 297 | static void flatview_ref(FlatView *view) |
| 298 | { |
| 299 | atomic_inc(&view->ref); |
| 300 | } |
| 301 | |
| 302 | static void flatview_unref(FlatView *view) |
| 303 | { |
| 304 | if (atomic_fetch_dec(&view->ref) == 1) { |
| 305 | flatview_destroy(view); |
| 306 | } |
| 307 | } |
| 308 | |
Avi Kivity | 3d8e6bf | 2011-07-26 14:26:03 +0300 | [diff] [blame] | 309 | static bool can_merge(FlatRange *r1, FlatRange *r2) |
| 310 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 311 | return int128_eq(addrrange_end(r1->addr), r2->addr.start) |
Avi Kivity | 3d8e6bf | 2011-07-26 14:26:03 +0300 | [diff] [blame] | 312 | && r1->mr == r2->mr |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 313 | && int128_eq(int128_add(int128_make64(r1->offset_in_region), |
| 314 | r1->addr.size), |
| 315 | int128_make64(r2->offset_in_region)) |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 316 | && r1->dirty_log_mask == r2->dirty_log_mask |
Paolo Bonzini | b138e65 | 2016-05-24 21:26:28 +0200 | [diff] [blame] | 317 | && r1->romd_mode == r2->romd_mode |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 318 | && r1->readonly == r2->readonly; |
Avi Kivity | 3d8e6bf | 2011-07-26 14:26:03 +0300 | [diff] [blame] | 319 | } |
| 320 | |
Peter Crosthwaite | 8508e02 | 2013-06-03 15:31:56 +1000 | [diff] [blame] | 321 | /* Attempt to simplify a view by merging adjacent ranges */ |
Avi Kivity | 3d8e6bf | 2011-07-26 14:26:03 +0300 | [diff] [blame] | 322 | static void flatview_simplify(FlatView *view) |
| 323 | { |
| 324 | unsigned i, j; |
| 325 | |
| 326 | i = 0; |
| 327 | while (i < view->nr) { |
| 328 | j = i + 1; |
| 329 | while (j < view->nr |
| 330 | && can_merge(&view->ranges[j-1], &view->ranges[j])) { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 331 | int128_addto(&view->ranges[i].addr.size, view->ranges[j].addr.size); |
Avi Kivity | 3d8e6bf | 2011-07-26 14:26:03 +0300 | [diff] [blame] | 332 | ++j; |
| 333 | } |
| 334 | ++i; |
| 335 | memmove(&view->ranges[i], &view->ranges[j], |
| 336 | (view->nr - j) * sizeof(view->ranges[j])); |
| 337 | view->nr -= j - i; |
| 338 | } |
| 339 | } |
| 340 | |
Paolo Bonzini | e7342aa | 2013-07-22 15:54:37 +0200 | [diff] [blame] | 341 | static bool memory_region_big_endian(MemoryRegion *mr) |
| 342 | { |
| 343 | #ifdef TARGET_WORDS_BIGENDIAN |
| 344 | return mr->ops->endianness != DEVICE_LITTLE_ENDIAN; |
| 345 | #else |
| 346 | return mr->ops->endianness == DEVICE_BIG_ENDIAN; |
| 347 | #endif |
| 348 | } |
| 349 | |
Paolo Bonzini | e11ef3d | 2013-07-22 15:54:35 +0200 | [diff] [blame] | 350 | static bool memory_region_wrong_endianness(MemoryRegion *mr) |
| 351 | { |
| 352 | #ifdef TARGET_WORDS_BIGENDIAN |
| 353 | return mr->ops->endianness == DEVICE_LITTLE_ENDIAN; |
| 354 | #else |
| 355 | return mr->ops->endianness == DEVICE_BIG_ENDIAN; |
| 356 | #endif |
| 357 | } |
| 358 | |
| 359 | static void adjust_endianness(MemoryRegion *mr, uint64_t *data, unsigned size) |
| 360 | { |
| 361 | if (memory_region_wrong_endianness(mr)) { |
| 362 | switch (size) { |
| 363 | case 1: |
| 364 | break; |
| 365 | case 2: |
| 366 | *data = bswap16(*data); |
| 367 | break; |
| 368 | case 4: |
| 369 | *data = bswap32(*data); |
| 370 | break; |
| 371 | case 8: |
| 372 | *data = bswap64(*data); |
| 373 | break; |
| 374 | default: |
| 375 | abort(); |
| 376 | } |
| 377 | } |
| 378 | } |
| 379 | |
Hollis Blanchard | 4779dc1 | 2016-02-08 16:03:05 -0800 | [diff] [blame] | 380 | static hwaddr memory_region_to_absolute_addr(MemoryRegion *mr, hwaddr offset) |
| 381 | { |
| 382 | MemoryRegion *root; |
| 383 | hwaddr abs_addr = offset; |
| 384 | |
| 385 | abs_addr += mr->addr; |
| 386 | for (root = mr; root->container; ) { |
| 387 | root = root->container; |
| 388 | abs_addr += root->addr; |
| 389 | } |
| 390 | |
| 391 | return abs_addr; |
| 392 | } |
| 393 | |
Hollis Blanchard | 5a68be9 | 2016-03-02 12:12:54 -0800 | [diff] [blame] | 394 | static int get_cpu_index(void) |
| 395 | { |
| 396 | if (current_cpu) { |
| 397 | return current_cpu->cpu_index; |
| 398 | } |
| 399 | return -1; |
| 400 | } |
| 401 | |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 402 | static MemTxResult memory_region_oldmmio_read_accessor(MemoryRegion *mr, |
| 403 | hwaddr addr, |
| 404 | uint64_t *value, |
| 405 | unsigned size, |
| 406 | unsigned shift, |
| 407 | uint64_t mask, |
| 408 | MemTxAttrs attrs) |
Paolo Bonzini | ce5d2f3 | 2013-05-24 17:45:48 +0200 | [diff] [blame] | 409 | { |
Paolo Bonzini | ce5d2f3 | 2013-05-24 17:45:48 +0200 | [diff] [blame] | 410 | uint64_t tmp; |
| 411 | |
| 412 | tmp = mr->ops->old_mmio.read[ctz32(size)](mr->opaque, addr); |
Hollis Blanchard | 23d92d6 | 2016-02-08 16:03:04 -0800 | [diff] [blame] | 413 | if (mr->subpage) { |
Hollis Blanchard | 5a68be9 | 2016-03-02 12:12:54 -0800 | [diff] [blame] | 414 | trace_memory_region_subpage_read(get_cpu_index(), mr, addr, tmp, size); |
Hollis Blanchard | f2d0894 | 2016-03-02 12:12:55 -0800 | [diff] [blame] | 415 | } else if (mr == &io_mem_notdirty) { |
| 416 | /* Accesses to code which has previously been translated into a TB show |
| 417 | * up in the MMIO path, as accesses to the io_mem_notdirty |
| 418 | * MemoryRegion. */ |
| 419 | trace_memory_region_tb_read(get_cpu_index(), addr, tmp, size); |
Hollis Blanchard | 4779dc1 | 2016-02-08 16:03:05 -0800 | [diff] [blame] | 420 | } else if (TRACE_MEMORY_REGION_OPS_READ_ENABLED) { |
| 421 | hwaddr abs_addr = memory_region_to_absolute_addr(mr, addr); |
Hollis Blanchard | 5a68be9 | 2016-03-02 12:12:54 -0800 | [diff] [blame] | 422 | trace_memory_region_ops_read(get_cpu_index(), mr, abs_addr, tmp, size); |
Hollis Blanchard | 23d92d6 | 2016-02-08 16:03:04 -0800 | [diff] [blame] | 423 | } |
Paolo Bonzini | ce5d2f3 | 2013-05-24 17:45:48 +0200 | [diff] [blame] | 424 | *value |= (tmp & mask) << shift; |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 425 | return MEMTX_OK; |
Paolo Bonzini | ce5d2f3 | 2013-05-24 17:45:48 +0200 | [diff] [blame] | 426 | } |
| 427 | |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 428 | static MemTxResult memory_region_read_accessor(MemoryRegion *mr, |
| 429 | hwaddr addr, |
| 430 | uint64_t *value, |
| 431 | unsigned size, |
| 432 | unsigned shift, |
| 433 | uint64_t mask, |
| 434 | MemTxAttrs attrs) |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 435 | { |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 436 | uint64_t tmp; |
| 437 | |
| 438 | tmp = mr->ops->read(mr->opaque, addr, size); |
Hollis Blanchard | 23d92d6 | 2016-02-08 16:03:04 -0800 | [diff] [blame] | 439 | if (mr->subpage) { |
Hollis Blanchard | 5a68be9 | 2016-03-02 12:12:54 -0800 | [diff] [blame] | 440 | trace_memory_region_subpage_read(get_cpu_index(), mr, addr, tmp, size); |
Hollis Blanchard | f2d0894 | 2016-03-02 12:12:55 -0800 | [diff] [blame] | 441 | } else if (mr == &io_mem_notdirty) { |
| 442 | /* Accesses to code which has previously been translated into a TB show |
| 443 | * up in the MMIO path, as accesses to the io_mem_notdirty |
| 444 | * MemoryRegion. */ |
| 445 | trace_memory_region_tb_read(get_cpu_index(), addr, tmp, size); |
Hollis Blanchard | 4779dc1 | 2016-02-08 16:03:05 -0800 | [diff] [blame] | 446 | } else if (TRACE_MEMORY_REGION_OPS_READ_ENABLED) { |
| 447 | hwaddr abs_addr = memory_region_to_absolute_addr(mr, addr); |
Hollis Blanchard | 5a68be9 | 2016-03-02 12:12:54 -0800 | [diff] [blame] | 448 | trace_memory_region_ops_read(get_cpu_index(), mr, abs_addr, tmp, size); |
Hollis Blanchard | 23d92d6 | 2016-02-08 16:03:04 -0800 | [diff] [blame] | 449 | } |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 450 | *value |= (tmp & mask) << shift; |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 451 | return MEMTX_OK; |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 452 | } |
| 453 | |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 454 | static MemTxResult memory_region_read_with_attrs_accessor(MemoryRegion *mr, |
| 455 | hwaddr addr, |
| 456 | uint64_t *value, |
| 457 | unsigned size, |
| 458 | unsigned shift, |
| 459 | uint64_t mask, |
| 460 | MemTxAttrs attrs) |
| 461 | { |
| 462 | uint64_t tmp = 0; |
| 463 | MemTxResult r; |
| 464 | |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 465 | r = mr->ops->read_with_attrs(mr->opaque, addr, &tmp, size, attrs); |
Hollis Blanchard | 23d92d6 | 2016-02-08 16:03:04 -0800 | [diff] [blame] | 466 | if (mr->subpage) { |
Hollis Blanchard | 5a68be9 | 2016-03-02 12:12:54 -0800 | [diff] [blame] | 467 | trace_memory_region_subpage_read(get_cpu_index(), mr, addr, tmp, size); |
Hollis Blanchard | f2d0894 | 2016-03-02 12:12:55 -0800 | [diff] [blame] | 468 | } else if (mr == &io_mem_notdirty) { |
| 469 | /* Accesses to code which has previously been translated into a TB show |
| 470 | * up in the MMIO path, as accesses to the io_mem_notdirty |
| 471 | * MemoryRegion. */ |
| 472 | trace_memory_region_tb_read(get_cpu_index(), addr, tmp, size); |
Hollis Blanchard | 4779dc1 | 2016-02-08 16:03:05 -0800 | [diff] [blame] | 473 | } else if (TRACE_MEMORY_REGION_OPS_READ_ENABLED) { |
| 474 | hwaddr abs_addr = memory_region_to_absolute_addr(mr, addr); |
Hollis Blanchard | 5a68be9 | 2016-03-02 12:12:54 -0800 | [diff] [blame] | 475 | trace_memory_region_ops_read(get_cpu_index(), mr, abs_addr, tmp, size); |
Hollis Blanchard | 23d92d6 | 2016-02-08 16:03:04 -0800 | [diff] [blame] | 476 | } |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 477 | *value |= (tmp & mask) << shift; |
| 478 | return r; |
| 479 | } |
| 480 | |
| 481 | static MemTxResult memory_region_oldmmio_write_accessor(MemoryRegion *mr, |
| 482 | hwaddr addr, |
| 483 | uint64_t *value, |
| 484 | unsigned size, |
| 485 | unsigned shift, |
| 486 | uint64_t mask, |
| 487 | MemTxAttrs attrs) |
Paolo Bonzini | ce5d2f3 | 2013-05-24 17:45:48 +0200 | [diff] [blame] | 488 | { |
Paolo Bonzini | ce5d2f3 | 2013-05-24 17:45:48 +0200 | [diff] [blame] | 489 | uint64_t tmp; |
| 490 | |
| 491 | tmp = (*value >> shift) & mask; |
Hollis Blanchard | 23d92d6 | 2016-02-08 16:03:04 -0800 | [diff] [blame] | 492 | if (mr->subpage) { |
Hollis Blanchard | 5a68be9 | 2016-03-02 12:12:54 -0800 | [diff] [blame] | 493 | trace_memory_region_subpage_write(get_cpu_index(), mr, addr, tmp, size); |
Hollis Blanchard | f2d0894 | 2016-03-02 12:12:55 -0800 | [diff] [blame] | 494 | } else if (mr == &io_mem_notdirty) { |
| 495 | /* Accesses to code which has previously been translated into a TB show |
| 496 | * up in the MMIO path, as accesses to the io_mem_notdirty |
| 497 | * MemoryRegion. */ |
| 498 | trace_memory_region_tb_write(get_cpu_index(), addr, tmp, size); |
Hollis Blanchard | 4779dc1 | 2016-02-08 16:03:05 -0800 | [diff] [blame] | 499 | } else if (TRACE_MEMORY_REGION_OPS_WRITE_ENABLED) { |
| 500 | hwaddr abs_addr = memory_region_to_absolute_addr(mr, addr); |
Hollis Blanchard | 5a68be9 | 2016-03-02 12:12:54 -0800 | [diff] [blame] | 501 | trace_memory_region_ops_write(get_cpu_index(), mr, abs_addr, tmp, size); |
Hollis Blanchard | 23d92d6 | 2016-02-08 16:03:04 -0800 | [diff] [blame] | 502 | } |
Paolo Bonzini | ce5d2f3 | 2013-05-24 17:45:48 +0200 | [diff] [blame] | 503 | mr->ops->old_mmio.write[ctz32(size)](mr->opaque, addr, tmp); |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 504 | return MEMTX_OK; |
Paolo Bonzini | ce5d2f3 | 2013-05-24 17:45:48 +0200 | [diff] [blame] | 505 | } |
| 506 | |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 507 | static MemTxResult memory_region_write_accessor(MemoryRegion *mr, |
| 508 | hwaddr addr, |
| 509 | uint64_t *value, |
| 510 | unsigned size, |
| 511 | unsigned shift, |
| 512 | uint64_t mask, |
| 513 | MemTxAttrs attrs) |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 514 | { |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 515 | uint64_t tmp; |
| 516 | |
| 517 | tmp = (*value >> shift) & mask; |
Hollis Blanchard | 23d92d6 | 2016-02-08 16:03:04 -0800 | [diff] [blame] | 518 | if (mr->subpage) { |
Hollis Blanchard | 5a68be9 | 2016-03-02 12:12:54 -0800 | [diff] [blame] | 519 | trace_memory_region_subpage_write(get_cpu_index(), mr, addr, tmp, size); |
Hollis Blanchard | f2d0894 | 2016-03-02 12:12:55 -0800 | [diff] [blame] | 520 | } else if (mr == &io_mem_notdirty) { |
| 521 | /* Accesses to code which has previously been translated into a TB show |
| 522 | * up in the MMIO path, as accesses to the io_mem_notdirty |
| 523 | * MemoryRegion. */ |
| 524 | trace_memory_region_tb_write(get_cpu_index(), addr, tmp, size); |
Hollis Blanchard | 4779dc1 | 2016-02-08 16:03:05 -0800 | [diff] [blame] | 525 | } else if (TRACE_MEMORY_REGION_OPS_WRITE_ENABLED) { |
| 526 | hwaddr abs_addr = memory_region_to_absolute_addr(mr, addr); |
Hollis Blanchard | 5a68be9 | 2016-03-02 12:12:54 -0800 | [diff] [blame] | 527 | trace_memory_region_ops_write(get_cpu_index(), mr, abs_addr, tmp, size); |
Hollis Blanchard | 23d92d6 | 2016-02-08 16:03:04 -0800 | [diff] [blame] | 528 | } |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 529 | mr->ops->write(mr->opaque, addr, tmp, size); |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 530 | return MEMTX_OK; |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 531 | } |
| 532 | |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 533 | static MemTxResult memory_region_write_with_attrs_accessor(MemoryRegion *mr, |
| 534 | hwaddr addr, |
| 535 | uint64_t *value, |
| 536 | unsigned size, |
| 537 | unsigned shift, |
| 538 | uint64_t mask, |
| 539 | MemTxAttrs attrs) |
| 540 | { |
| 541 | uint64_t tmp; |
| 542 | |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 543 | tmp = (*value >> shift) & mask; |
Hollis Blanchard | 23d92d6 | 2016-02-08 16:03:04 -0800 | [diff] [blame] | 544 | if (mr->subpage) { |
Hollis Blanchard | 5a68be9 | 2016-03-02 12:12:54 -0800 | [diff] [blame] | 545 | trace_memory_region_subpage_write(get_cpu_index(), mr, addr, tmp, size); |
Hollis Blanchard | f2d0894 | 2016-03-02 12:12:55 -0800 | [diff] [blame] | 546 | } else if (mr == &io_mem_notdirty) { |
| 547 | /* Accesses to code which has previously been translated into a TB show |
| 548 | * up in the MMIO path, as accesses to the io_mem_notdirty |
| 549 | * MemoryRegion. */ |
| 550 | trace_memory_region_tb_write(get_cpu_index(), addr, tmp, size); |
Hollis Blanchard | 4779dc1 | 2016-02-08 16:03:05 -0800 | [diff] [blame] | 551 | } else if (TRACE_MEMORY_REGION_OPS_WRITE_ENABLED) { |
| 552 | hwaddr abs_addr = memory_region_to_absolute_addr(mr, addr); |
Hollis Blanchard | 5a68be9 | 2016-03-02 12:12:54 -0800 | [diff] [blame] | 553 | trace_memory_region_ops_write(get_cpu_index(), mr, abs_addr, tmp, size); |
Hollis Blanchard | 23d92d6 | 2016-02-08 16:03:04 -0800 | [diff] [blame] | 554 | } |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 555 | return mr->ops->write_with_attrs(mr->opaque, addr, tmp, size, attrs); |
| 556 | } |
| 557 | |
| 558 | static MemTxResult access_with_adjusted_size(hwaddr addr, |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 559 | uint64_t *value, |
| 560 | unsigned size, |
| 561 | unsigned access_size_min, |
| 562 | unsigned access_size_max, |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 563 | MemTxResult (*access)(MemoryRegion *mr, |
| 564 | hwaddr addr, |
| 565 | uint64_t *value, |
| 566 | unsigned size, |
| 567 | unsigned shift, |
| 568 | uint64_t mask, |
| 569 | MemTxAttrs attrs), |
| 570 | MemoryRegion *mr, |
| 571 | MemTxAttrs attrs) |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 572 | { |
| 573 | uint64_t access_mask; |
| 574 | unsigned access_size; |
| 575 | unsigned i; |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 576 | MemTxResult r = MEMTX_OK; |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 577 | |
| 578 | if (!access_size_min) { |
| 579 | access_size_min = 1; |
| 580 | } |
| 581 | if (!access_size_max) { |
| 582 | access_size_max = 4; |
| 583 | } |
Paolo Bonzini | ce5d2f3 | 2013-05-24 17:45:48 +0200 | [diff] [blame] | 584 | |
| 585 | /* FIXME: support unaligned access? */ |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 586 | access_size = MAX(MIN(size, access_size_max), access_size_min); |
| 587 | access_mask = -1ULL >> (64 - access_size * 8); |
Paolo Bonzini | e7342aa | 2013-07-22 15:54:37 +0200 | [diff] [blame] | 588 | if (memory_region_big_endian(mr)) { |
| 589 | for (i = 0; i < size; i += access_size) { |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 590 | r |= access(mr, addr + i, value, access_size, |
| 591 | (size - access_size - i) * 8, access_mask, attrs); |
Paolo Bonzini | e7342aa | 2013-07-22 15:54:37 +0200 | [diff] [blame] | 592 | } |
| 593 | } else { |
| 594 | for (i = 0; i < size; i += access_size) { |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 595 | r |= access(mr, addr + i, value, access_size, i * 8, |
| 596 | access_mask, attrs); |
Paolo Bonzini | e7342aa | 2013-07-22 15:54:37 +0200 | [diff] [blame] | 597 | } |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 598 | } |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 599 | return r; |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 600 | } |
| 601 | |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 602 | static AddressSpace *memory_region_to_address_space(MemoryRegion *mr) |
| 603 | { |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 604 | AddressSpace *as; |
| 605 | |
Paolo Bonzini | feca4ac | 2014-06-11 11:18:09 +0200 | [diff] [blame] | 606 | while (mr->container) { |
| 607 | mr = mr->container; |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 608 | } |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 609 | QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) { |
| 610 | if (mr == as->root) { |
| 611 | return as; |
| 612 | } |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 613 | } |
Igor Mammedov | eed2bac | 2014-06-02 15:25:06 +0200 | [diff] [blame] | 614 | return NULL; |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 615 | } |
| 616 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 617 | /* Render a memory region into the global view. Ranges in @view obscure |
| 618 | * ranges in @mr. |
| 619 | */ |
| 620 | static void render_memory_region(FlatView *view, |
| 621 | MemoryRegion *mr, |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 622 | Int128 base, |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 623 | AddrRange clip, |
| 624 | bool readonly) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 625 | { |
| 626 | MemoryRegion *subregion; |
| 627 | unsigned i; |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 628 | hwaddr offset_in_region; |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 629 | Int128 remain; |
| 630 | Int128 now; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 631 | FlatRange fr; |
| 632 | AddrRange tmp; |
| 633 | |
Avi Kivity | 6bba19b | 2011-09-14 11:54:58 +0300 | [diff] [blame] | 634 | if (!mr->enabled) { |
| 635 | return; |
| 636 | } |
| 637 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 638 | int128_addto(&base, int128_make64(mr->addr)); |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 639 | readonly |= mr->readonly; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 640 | |
| 641 | tmp = addrrange_make(base, mr->size); |
| 642 | |
| 643 | if (!addrrange_intersects(tmp, clip)) { |
| 644 | return; |
| 645 | } |
| 646 | |
| 647 | clip = addrrange_intersection(tmp, clip); |
| 648 | |
| 649 | if (mr->alias) { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 650 | int128_subfrom(&base, int128_make64(mr->alias->addr)); |
| 651 | int128_subfrom(&base, int128_make64(mr->alias_offset)); |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 652 | render_memory_region(view, mr->alias, base, clip, readonly); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 653 | return; |
| 654 | } |
| 655 | |
| 656 | /* Render subregions in priority order. */ |
| 657 | QTAILQ_FOREACH(subregion, &mr->subregions, subregions_link) { |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 658 | render_memory_region(view, subregion, base, clip, readonly); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 659 | } |
| 660 | |
Avi Kivity | 14a3c10 | 2011-07-26 14:26:06 +0300 | [diff] [blame] | 661 | if (!mr->terminates) { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 662 | return; |
| 663 | } |
| 664 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 665 | offset_in_region = int128_get64(int128_sub(clip.start, base)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 666 | base = clip.start; |
| 667 | remain = clip.size; |
| 668 | |
Peter Crosthwaite | 2eb74e1 | 2013-06-03 15:33:29 +1000 | [diff] [blame] | 669 | fr.mr = mr; |
Paolo Bonzini | 6f6a5ef | 2015-03-23 10:57:21 +0100 | [diff] [blame] | 670 | fr.dirty_log_mask = memory_region_get_dirty_log_mask(mr); |
Paolo Bonzini | b138e65 | 2016-05-24 21:26:28 +0200 | [diff] [blame] | 671 | fr.romd_mode = mr->romd_mode; |
Peter Crosthwaite | 2eb74e1 | 2013-06-03 15:33:29 +1000 | [diff] [blame] | 672 | fr.readonly = readonly; |
| 673 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 674 | /* Render the region itself into any gaps left by the current view. */ |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 675 | for (i = 0; i < view->nr && int128_nz(remain); ++i) { |
| 676 | if (int128_ge(base, addrrange_end(view->ranges[i].addr))) { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 677 | continue; |
| 678 | } |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 679 | if (int128_lt(base, view->ranges[i].addr.start)) { |
| 680 | now = int128_min(remain, |
| 681 | int128_sub(view->ranges[i].addr.start, base)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 682 | fr.offset_in_region = offset_in_region; |
| 683 | fr.addr = addrrange_make(base, now); |
| 684 | flatview_insert(view, i, &fr); |
| 685 | ++i; |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 686 | int128_addto(&base, now); |
| 687 | offset_in_region += int128_get64(now); |
| 688 | int128_subfrom(&remain, now); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 689 | } |
Avi Kivity | d26a8ca | 2012-10-29 18:22:36 +0200 | [diff] [blame] | 690 | now = int128_sub(int128_min(int128_add(base, remain), |
| 691 | addrrange_end(view->ranges[i].addr)), |
| 692 | base); |
| 693 | int128_addto(&base, now); |
| 694 | offset_in_region += int128_get64(now); |
| 695 | int128_subfrom(&remain, now); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 696 | } |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 697 | if (int128_nz(remain)) { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 698 | fr.offset_in_region = offset_in_region; |
| 699 | fr.addr = addrrange_make(base, remain); |
| 700 | flatview_insert(view, i, &fr); |
| 701 | } |
| 702 | } |
| 703 | |
| 704 | /* Render a memory topology into a list of disjoint absolute ranges. */ |
Paolo Bonzini | a9a0c06 | 2013-05-06 10:29:07 +0200 | [diff] [blame] | 705 | static FlatView *generate_memory_topology(MemoryRegion *mr) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 706 | { |
Paolo Bonzini | a9a0c06 | 2013-05-06 10:29:07 +0200 | [diff] [blame] | 707 | FlatView *view; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 708 | |
Paolo Bonzini | a9a0c06 | 2013-05-06 10:29:07 +0200 | [diff] [blame] | 709 | view = g_new(FlatView, 1); |
| 710 | flatview_init(view); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 711 | |
Avi Kivity | 83f3c25 | 2012-10-07 12:59:55 +0200 | [diff] [blame] | 712 | if (mr) { |
Paolo Bonzini | a9a0c06 | 2013-05-06 10:29:07 +0200 | [diff] [blame] | 713 | render_memory_region(view, mr, int128_zero(), |
Avi Kivity | 83f3c25 | 2012-10-07 12:59:55 +0200 | [diff] [blame] | 714 | addrrange_make(int128_zero(), int128_2_64()), false); |
| 715 | } |
Paolo Bonzini | a9a0c06 | 2013-05-06 10:29:07 +0200 | [diff] [blame] | 716 | flatview_simplify(view); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 717 | |
| 718 | return view; |
| 719 | } |
| 720 | |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 721 | static void address_space_add_del_ioeventfds(AddressSpace *as, |
| 722 | MemoryRegionIoeventfd *fds_new, |
| 723 | unsigned fds_new_nb, |
| 724 | MemoryRegionIoeventfd *fds_old, |
| 725 | unsigned fds_old_nb) |
| 726 | { |
| 727 | unsigned iold, inew; |
Avi Kivity | 80a1ea3 | 2012-02-08 16:39:06 +0200 | [diff] [blame] | 728 | MemoryRegionIoeventfd *fd; |
| 729 | MemoryRegionSection section; |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 730 | |
| 731 | /* Generate a symmetric difference of the old and new fd sets, adding |
| 732 | * and deleting as necessary. |
| 733 | */ |
| 734 | |
| 735 | iold = inew = 0; |
| 736 | while (iold < fds_old_nb || inew < fds_new_nb) { |
| 737 | if (iold < fds_old_nb |
| 738 | && (inew == fds_new_nb |
| 739 | || memory_region_ioeventfd_before(fds_old[iold], |
| 740 | fds_new[inew]))) { |
Avi Kivity | 80a1ea3 | 2012-02-08 16:39:06 +0200 | [diff] [blame] | 741 | fd = &fds_old[iold]; |
| 742 | section = (MemoryRegionSection) { |
Avi Kivity | f6790af | 2012-10-02 20:13:51 +0200 | [diff] [blame] | 743 | .address_space = as, |
Avi Kivity | 80a1ea3 | 2012-02-08 16:39:06 +0200 | [diff] [blame] | 744 | .offset_within_address_space = int128_get64(fd->addr.start), |
Paolo Bonzini | 052e87b | 2013-05-27 10:08:27 +0200 | [diff] [blame] | 745 | .size = fd->addr.size, |
Avi Kivity | 80a1ea3 | 2012-02-08 16:39:06 +0200 | [diff] [blame] | 746 | }; |
Paolo Bonzini | 9a54635 | 2016-09-22 16:23:06 +0200 | [diff] [blame] | 747 | MEMORY_LISTENER_CALL(as, eventfd_del, Forward, §ion, |
Paolo Bonzini | 753d5e1 | 2012-07-05 17:16:27 +0200 | [diff] [blame] | 748 | fd->match_data, fd->data, fd->e); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 749 | ++iold; |
| 750 | } else if (inew < fds_new_nb |
| 751 | && (iold == fds_old_nb |
| 752 | || memory_region_ioeventfd_before(fds_new[inew], |
| 753 | fds_old[iold]))) { |
Avi Kivity | 80a1ea3 | 2012-02-08 16:39:06 +0200 | [diff] [blame] | 754 | fd = &fds_new[inew]; |
| 755 | section = (MemoryRegionSection) { |
Avi Kivity | f6790af | 2012-10-02 20:13:51 +0200 | [diff] [blame] | 756 | .address_space = as, |
Avi Kivity | 80a1ea3 | 2012-02-08 16:39:06 +0200 | [diff] [blame] | 757 | .offset_within_address_space = int128_get64(fd->addr.start), |
Paolo Bonzini | 052e87b | 2013-05-27 10:08:27 +0200 | [diff] [blame] | 758 | .size = fd->addr.size, |
Avi Kivity | 80a1ea3 | 2012-02-08 16:39:06 +0200 | [diff] [blame] | 759 | }; |
Paolo Bonzini | 9a54635 | 2016-09-22 16:23:06 +0200 | [diff] [blame] | 760 | MEMORY_LISTENER_CALL(as, eventfd_add, Reverse, §ion, |
Paolo Bonzini | 753d5e1 | 2012-07-05 17:16:27 +0200 | [diff] [blame] | 761 | fd->match_data, fd->data, fd->e); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 762 | ++inew; |
| 763 | } else { |
| 764 | ++iold; |
| 765 | ++inew; |
| 766 | } |
| 767 | } |
| 768 | } |
| 769 | |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 770 | static FlatView *address_space_get_flatview(AddressSpace *as) |
| 771 | { |
| 772 | FlatView *view; |
| 773 | |
Paolo Bonzini | 374f298 | 2013-05-17 12:37:03 +0200 | [diff] [blame] | 774 | rcu_read_lock(); |
| 775 | view = atomic_rcu_read(&as->current_map); |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 776 | flatview_ref(view); |
Paolo Bonzini | 374f298 | 2013-05-17 12:37:03 +0200 | [diff] [blame] | 777 | rcu_read_unlock(); |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 778 | return view; |
| 779 | } |
| 780 | |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 781 | static void address_space_update_ioeventfds(AddressSpace *as) |
| 782 | { |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 783 | FlatView *view; |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 784 | FlatRange *fr; |
| 785 | unsigned ioeventfd_nb = 0; |
| 786 | MemoryRegionIoeventfd *ioeventfds = NULL; |
| 787 | AddrRange tmp; |
| 788 | unsigned i; |
| 789 | |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 790 | view = address_space_get_flatview(as); |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 791 | FOR_EACH_FLAT_RANGE(fr, view) { |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 792 | for (i = 0; i < fr->mr->ioeventfd_nb; ++i) { |
| 793 | tmp = addrrange_shift(fr->mr->ioeventfds[i].addr, |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 794 | int128_sub(fr->addr.start, |
| 795 | int128_make64(fr->offset_in_region))); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 796 | if (addrrange_intersects(fr->addr, tmp)) { |
| 797 | ++ioeventfd_nb; |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 798 | ioeventfds = g_realloc(ioeventfds, |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 799 | ioeventfd_nb * sizeof(*ioeventfds)); |
| 800 | ioeventfds[ioeventfd_nb-1] = fr->mr->ioeventfds[i]; |
| 801 | ioeventfds[ioeventfd_nb-1].addr = tmp; |
| 802 | } |
| 803 | } |
| 804 | } |
| 805 | |
| 806 | address_space_add_del_ioeventfds(as, ioeventfds, ioeventfd_nb, |
| 807 | as->ioeventfds, as->ioeventfd_nb); |
| 808 | |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 809 | g_free(as->ioeventfds); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 810 | as->ioeventfds = ioeventfds; |
| 811 | as->ioeventfd_nb = ioeventfd_nb; |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 812 | flatview_unref(view); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 813 | } |
| 814 | |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 815 | static void address_space_update_topology_pass(AddressSpace *as, |
Paolo Bonzini | a9a0c06 | 2013-05-06 10:29:07 +0200 | [diff] [blame] | 816 | const FlatView *old_view, |
| 817 | const FlatView *new_view, |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 818 | bool adding) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 819 | { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 820 | unsigned iold, inew; |
| 821 | FlatRange *frold, *frnew; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 822 | |
| 823 | /* Generate a symmetric difference of the old and new memory maps. |
| 824 | * Kill ranges in the old map, and instantiate ranges in the new map. |
| 825 | */ |
| 826 | iold = inew = 0; |
Paolo Bonzini | a9a0c06 | 2013-05-06 10:29:07 +0200 | [diff] [blame] | 827 | while (iold < old_view->nr || inew < new_view->nr) { |
| 828 | if (iold < old_view->nr) { |
| 829 | frold = &old_view->ranges[iold]; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 830 | } else { |
| 831 | frold = NULL; |
| 832 | } |
Paolo Bonzini | a9a0c06 | 2013-05-06 10:29:07 +0200 | [diff] [blame] | 833 | if (inew < new_view->nr) { |
| 834 | frnew = &new_view->ranges[inew]; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 835 | } else { |
| 836 | frnew = NULL; |
| 837 | } |
| 838 | |
| 839 | if (frold |
| 840 | && (!frnew |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 841 | || int128_lt(frold->addr.start, frnew->addr.start) |
| 842 | || (int128_eq(frold->addr.start, frnew->addr.start) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 843 | && !flatrange_equal(frold, frnew)))) { |
Peter Crosthwaite | 41a6e47 | 2013-06-03 15:32:42 +1000 | [diff] [blame] | 844 | /* In old but not in new, or in both but attributes changed. */ |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 845 | |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 846 | if (!adding) { |
Avi Kivity | 72e22d2 | 2012-02-08 15:05:50 +0200 | [diff] [blame] | 847 | MEMORY_LISTENER_UPDATE_REGION(frold, as, Reverse, region_del); |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 848 | } |
| 849 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 850 | ++iold; |
| 851 | } else if (frold && frnew && flatrange_equal(frold, frnew)) { |
Peter Crosthwaite | 41a6e47 | 2013-06-03 15:32:42 +1000 | [diff] [blame] | 852 | /* In both and unchanged (except logging may have changed) */ |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 853 | |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 854 | if (adding) { |
Avi Kivity | 50c1e14 | 2012-02-08 21:36:02 +0200 | [diff] [blame] | 855 | MEMORY_LISTENER_UPDATE_REGION(frnew, as, Forward, region_nop); |
Paolo Bonzini | b2dfd71 | 2015-04-25 14:38:30 +0200 | [diff] [blame] | 856 | if (frnew->dirty_log_mask & ~frold->dirty_log_mask) { |
| 857 | MEMORY_LISTENER_UPDATE_REGION(frnew, as, Forward, log_start, |
| 858 | frold->dirty_log_mask, |
| 859 | frnew->dirty_log_mask); |
| 860 | } |
| 861 | if (frold->dirty_log_mask & ~frnew->dirty_log_mask) { |
| 862 | MEMORY_LISTENER_UPDATE_REGION(frnew, as, Reverse, log_stop, |
| 863 | frold->dirty_log_mask, |
| 864 | frnew->dirty_log_mask); |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 865 | } |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 866 | } |
| 867 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 868 | ++iold; |
| 869 | ++inew; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 870 | } else { |
| 871 | /* In new */ |
| 872 | |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 873 | if (adding) { |
Avi Kivity | 72e22d2 | 2012-02-08 15:05:50 +0200 | [diff] [blame] | 874 | MEMORY_LISTENER_UPDATE_REGION(frnew, as, Forward, region_add); |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 875 | } |
| 876 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 877 | ++inew; |
| 878 | } |
| 879 | } |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 880 | } |
| 881 | |
| 882 | |
| 883 | static void address_space_update_topology(AddressSpace *as) |
| 884 | { |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 885 | FlatView *old_view = address_space_get_flatview(as); |
Paolo Bonzini | a9a0c06 | 2013-05-06 10:29:07 +0200 | [diff] [blame] | 886 | FlatView *new_view = generate_memory_topology(as->root); |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 887 | |
| 888 | address_space_update_topology_pass(as, old_view, new_view, false); |
| 889 | address_space_update_topology_pass(as, old_view, new_view, true); |
| 890 | |
Paolo Bonzini | 374f298 | 2013-05-17 12:37:03 +0200 | [diff] [blame] | 891 | /* Writes are protected by the BQL. */ |
| 892 | atomic_rcu_set(&as->current_map, new_view); |
| 893 | call_rcu(old_view, flatview_unref, rcu); |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 894 | |
| 895 | /* Note that all the old MemoryRegions are still alive up to this |
| 896 | * point. This relieves most MemoryListeners from the need to |
| 897 | * ref/unref the MemoryRegions they get---unless they use them |
| 898 | * outside the iothread mutex, in which case precise reference |
| 899 | * counting is necessary. |
| 900 | */ |
| 901 | flatview_unref(old_view); |
| 902 | |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 903 | address_space_update_ioeventfds(as); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 904 | } |
| 905 | |
Avi Kivity | 4ef4db8 | 2011-07-26 14:26:13 +0300 | [diff] [blame] | 906 | void memory_region_transaction_begin(void) |
| 907 | { |
Jan Kiszka | bb880de | 2012-08-23 13:02:32 +0200 | [diff] [blame] | 908 | qemu_flush_coalesced_mmio_buffer(); |
Avi Kivity | 4ef4db8 | 2011-07-26 14:26:13 +0300 | [diff] [blame] | 909 | ++memory_region_transaction_depth; |
| 910 | } |
| 911 | |
| 912 | void memory_region_transaction_commit(void) |
| 913 | { |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 914 | AddressSpace *as; |
| 915 | |
Avi Kivity | 4ef4db8 | 2011-07-26 14:26:13 +0300 | [diff] [blame] | 916 | assert(memory_region_transaction_depth); |
Jan Kiszka | 8d04fb5 | 2017-02-23 18:29:11 +0000 | [diff] [blame] | 917 | assert(qemu_mutex_iothread_locked()); |
| 918 | |
Avi Kivity | 4ef4db8 | 2011-07-26 14:26:13 +0300 | [diff] [blame] | 919 | --memory_region_transaction_depth; |
Gonglei | 4dc5615 | 2014-05-08 11:47:32 +0800 | [diff] [blame] | 920 | if (!memory_region_transaction_depth) { |
| 921 | if (memory_region_update_pending) { |
| 922 | MEMORY_LISTENER_CALL_GLOBAL(begin, Forward); |
Jan Kiszka | 02e2b95 | 2012-08-23 13:02:31 +0200 | [diff] [blame] | 923 | |
Gonglei | 4dc5615 | 2014-05-08 11:47:32 +0800 | [diff] [blame] | 924 | QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) { |
| 925 | address_space_update_topology(as); |
| 926 | } |
Xu, Anthony | ade9c1a | 2017-03-22 17:53:35 +0000 | [diff] [blame] | 927 | memory_region_update_pending = false; |
Gonglei | 4dc5615 | 2014-05-08 11:47:32 +0800 | [diff] [blame] | 928 | MEMORY_LISTENER_CALL_GLOBAL(commit, Forward); |
| 929 | } else if (ioeventfd_update_pending) { |
| 930 | QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) { |
| 931 | address_space_update_ioeventfds(as); |
| 932 | } |
Xu, Anthony | ade9c1a | 2017-03-22 17:53:35 +0000 | [diff] [blame] | 933 | ioeventfd_update_pending = false; |
Jan Kiszka | 02e2b95 | 2012-08-23 13:02:31 +0200 | [diff] [blame] | 934 | } |
Gonglei | 4dc5615 | 2014-05-08 11:47:32 +0800 | [diff] [blame] | 935 | } |
Avi Kivity | 4ef4db8 | 2011-07-26 14:26:13 +0300 | [diff] [blame] | 936 | } |
| 937 | |
Avi Kivity | 545e92e | 2011-08-08 19:58:48 +0300 | [diff] [blame] | 938 | static void memory_region_destructor_none(MemoryRegion *mr) |
| 939 | { |
| 940 | } |
| 941 | |
| 942 | static void memory_region_destructor_ram(MemoryRegion *mr) |
| 943 | { |
Fam Zheng | f1060c5 | 2016-03-01 14:18:22 +0800 | [diff] [blame] | 944 | qemu_ram_free(mr->ram_block); |
Avi Kivity | 545e92e | 2011-08-08 19:58:48 +0300 | [diff] [blame] | 945 | } |
| 946 | |
Peter Crosthwaite | b4fefef | 2014-06-05 23:15:52 -0700 | [diff] [blame] | 947 | static bool memory_region_need_escape(char c) |
| 948 | { |
| 949 | return c == '/' || c == '[' || c == '\\' || c == ']'; |
| 950 | } |
| 951 | |
| 952 | static char *memory_region_escape_name(const char *name) |
| 953 | { |
| 954 | const char *p; |
| 955 | char *escaped, *q; |
| 956 | uint8_t c; |
| 957 | size_t bytes = 0; |
| 958 | |
| 959 | for (p = name; *p; p++) { |
| 960 | bytes += memory_region_need_escape(*p) ? 4 : 1; |
| 961 | } |
| 962 | if (bytes == p - name) { |
| 963 | return g_memdup(name, bytes + 1); |
| 964 | } |
| 965 | |
| 966 | escaped = g_malloc(bytes + 1); |
| 967 | for (p = name, q = escaped; *p; p++) { |
| 968 | c = *p; |
| 969 | if (unlikely(memory_region_need_escape(c))) { |
| 970 | *q++ = '\\'; |
| 971 | *q++ = 'x'; |
| 972 | *q++ = "0123456789abcdef"[c >> 4]; |
| 973 | c = "0123456789abcdef"[c & 15]; |
| 974 | } |
| 975 | *q++ = c; |
| 976 | } |
| 977 | *q = 0; |
| 978 | return escaped; |
| 979 | } |
| 980 | |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 981 | static void memory_region_do_init(MemoryRegion *mr, |
| 982 | Object *owner, |
| 983 | const char *name, |
| 984 | uint64_t size) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 985 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 986 | mr->size = int128_make64(size); |
| 987 | if (size == UINT64_MAX) { |
| 988 | mr->size = int128_2_64(); |
| 989 | } |
Peter Maydell | 302fa28 | 2014-08-19 20:05:46 +0100 | [diff] [blame] | 990 | mr->name = g_strdup(name); |
Paolo Bonzini | 612263c | 2015-12-09 11:44:25 +0100 | [diff] [blame] | 991 | mr->owner = owner; |
Gonglei | 58eaa21 | 2016-02-22 16:34:55 +0800 | [diff] [blame] | 992 | mr->ram_block = NULL; |
Peter Crosthwaite | b4fefef | 2014-06-05 23:15:52 -0700 | [diff] [blame] | 993 | |
| 994 | if (name) { |
Peter Crosthwaite | 843ef73 | 2014-08-19 23:56:26 -0700 | [diff] [blame] | 995 | char *escaped_name = memory_region_escape_name(name); |
| 996 | char *name_array = g_strdup_printf("%s[*]", escaped_name); |
Paolo Bonzini | 612263c | 2015-12-09 11:44:25 +0100 | [diff] [blame] | 997 | |
| 998 | if (!owner) { |
| 999 | owner = container_get(qdev_get_machine(), "/unattached"); |
| 1000 | } |
| 1001 | |
Peter Crosthwaite | 843ef73 | 2014-08-19 23:56:26 -0700 | [diff] [blame] | 1002 | object_property_add_child(owner, name_array, OBJECT(mr), &error_abort); |
Peter Crosthwaite | b4fefef | 2014-06-05 23:15:52 -0700 | [diff] [blame] | 1003 | object_unref(OBJECT(mr)); |
Peter Crosthwaite | 843ef73 | 2014-08-19 23:56:26 -0700 | [diff] [blame] | 1004 | g_free(name_array); |
| 1005 | g_free(escaped_name); |
Peter Crosthwaite | b4fefef | 2014-06-05 23:15:52 -0700 | [diff] [blame] | 1006 | } |
| 1007 | } |
| 1008 | |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 1009 | void memory_region_init(MemoryRegion *mr, |
| 1010 | Object *owner, |
| 1011 | const char *name, |
| 1012 | uint64_t size) |
| 1013 | { |
| 1014 | object_initialize(mr, sizeof(*mr), TYPE_MEMORY_REGION); |
| 1015 | memory_region_do_init(mr, owner, name, size); |
| 1016 | } |
| 1017 | |
Eric Blake | d7bce99 | 2016-01-29 06:48:55 -0700 | [diff] [blame] | 1018 | static void memory_region_get_addr(Object *obj, Visitor *v, const char *name, |
| 1019 | void *opaque, Error **errp) |
Peter Crosthwaite | 409ddd0 | 2014-06-05 23:16:27 -0700 | [diff] [blame] | 1020 | { |
| 1021 | MemoryRegion *mr = MEMORY_REGION(obj); |
| 1022 | uint64_t value = mr->addr; |
| 1023 | |
Eric Blake | 51e72bc | 2016-01-29 06:48:54 -0700 | [diff] [blame] | 1024 | visit_type_uint64(v, name, &value, errp); |
Peter Crosthwaite | 409ddd0 | 2014-06-05 23:16:27 -0700 | [diff] [blame] | 1025 | } |
| 1026 | |
Eric Blake | d7bce99 | 2016-01-29 06:48:55 -0700 | [diff] [blame] | 1027 | static void memory_region_get_container(Object *obj, Visitor *v, |
| 1028 | const char *name, void *opaque, |
| 1029 | Error **errp) |
Peter Crosthwaite | 409ddd0 | 2014-06-05 23:16:27 -0700 | [diff] [blame] | 1030 | { |
| 1031 | MemoryRegion *mr = MEMORY_REGION(obj); |
| 1032 | gchar *path = (gchar *)""; |
| 1033 | |
| 1034 | if (mr->container) { |
| 1035 | path = object_get_canonical_path(OBJECT(mr->container)); |
| 1036 | } |
Eric Blake | 51e72bc | 2016-01-29 06:48:54 -0700 | [diff] [blame] | 1037 | visit_type_str(v, name, &path, errp); |
Peter Crosthwaite | 409ddd0 | 2014-06-05 23:16:27 -0700 | [diff] [blame] | 1038 | if (mr->container) { |
| 1039 | g_free(path); |
| 1040 | } |
| 1041 | } |
| 1042 | |
| 1043 | static Object *memory_region_resolve_container(Object *obj, void *opaque, |
| 1044 | const char *part) |
| 1045 | { |
| 1046 | MemoryRegion *mr = MEMORY_REGION(obj); |
| 1047 | |
| 1048 | return OBJECT(mr->container); |
| 1049 | } |
| 1050 | |
Eric Blake | d7bce99 | 2016-01-29 06:48:55 -0700 | [diff] [blame] | 1051 | static void memory_region_get_priority(Object *obj, Visitor *v, |
| 1052 | const char *name, void *opaque, |
| 1053 | Error **errp) |
Peter Crosthwaite | d33382d | 2014-06-05 23:17:01 -0700 | [diff] [blame] | 1054 | { |
| 1055 | MemoryRegion *mr = MEMORY_REGION(obj); |
| 1056 | int32_t value = mr->priority; |
| 1057 | |
Eric Blake | 51e72bc | 2016-01-29 06:48:54 -0700 | [diff] [blame] | 1058 | visit_type_int32(v, name, &value, errp); |
Peter Crosthwaite | d33382d | 2014-06-05 23:17:01 -0700 | [diff] [blame] | 1059 | } |
| 1060 | |
Eric Blake | d7bce99 | 2016-01-29 06:48:55 -0700 | [diff] [blame] | 1061 | static void memory_region_get_size(Object *obj, Visitor *v, const char *name, |
| 1062 | void *opaque, Error **errp) |
Peter Crosthwaite | 52aef7b | 2014-06-05 23:17:35 -0700 | [diff] [blame] | 1063 | { |
| 1064 | MemoryRegion *mr = MEMORY_REGION(obj); |
| 1065 | uint64_t value = memory_region_size(mr); |
| 1066 | |
Eric Blake | 51e72bc | 2016-01-29 06:48:54 -0700 | [diff] [blame] | 1067 | visit_type_uint64(v, name, &value, errp); |
Peter Crosthwaite | 52aef7b | 2014-06-05 23:17:35 -0700 | [diff] [blame] | 1068 | } |
| 1069 | |
Peter Crosthwaite | b4fefef | 2014-06-05 23:15:52 -0700 | [diff] [blame] | 1070 | static void memory_region_initfn(Object *obj) |
| 1071 | { |
| 1072 | MemoryRegion *mr = MEMORY_REGION(obj); |
Peter Crosthwaite | 409ddd0 | 2014-06-05 23:16:27 -0700 | [diff] [blame] | 1073 | ObjectProperty *op; |
Peter Crosthwaite | b4fefef | 2014-06-05 23:15:52 -0700 | [diff] [blame] | 1074 | |
| 1075 | mr->ops = &unassigned_mem_ops; |
| 1076 | mr->enabled = true; |
| 1077 | mr->romd_mode = true; |
Jan Kiszka | 196ea13 | 2015-06-18 18:47:20 +0200 | [diff] [blame] | 1078 | mr->global_locking = true; |
Peter Crosthwaite | b4fefef | 2014-06-05 23:15:52 -0700 | [diff] [blame] | 1079 | mr->destructor = memory_region_destructor_none; |
| 1080 | QTAILQ_INIT(&mr->subregions); |
| 1081 | QTAILQ_INIT(&mr->coalesced); |
Peter Crosthwaite | 409ddd0 | 2014-06-05 23:16:27 -0700 | [diff] [blame] | 1082 | |
| 1083 | op = object_property_add(OBJECT(mr), "container", |
| 1084 | "link<" TYPE_MEMORY_REGION ">", |
| 1085 | memory_region_get_container, |
| 1086 | NULL, /* memory_region_set_container */ |
| 1087 | NULL, NULL, &error_abort); |
| 1088 | op->resolve = memory_region_resolve_container; |
| 1089 | |
| 1090 | object_property_add(OBJECT(mr), "addr", "uint64", |
| 1091 | memory_region_get_addr, |
| 1092 | NULL, /* memory_region_set_addr */ |
| 1093 | NULL, NULL, &error_abort); |
Peter Crosthwaite | d33382d | 2014-06-05 23:17:01 -0700 | [diff] [blame] | 1094 | object_property_add(OBJECT(mr), "priority", "uint32", |
| 1095 | memory_region_get_priority, |
| 1096 | NULL, /* memory_region_set_priority */ |
| 1097 | NULL, NULL, &error_abort); |
Peter Crosthwaite | 52aef7b | 2014-06-05 23:17:35 -0700 | [diff] [blame] | 1098 | object_property_add(OBJECT(mr), "size", "uint64", |
| 1099 | memory_region_get_size, |
| 1100 | NULL, /* memory_region_set_size, */ |
| 1101 | NULL, NULL, &error_abort); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1102 | } |
| 1103 | |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 1104 | static void iommu_memory_region_initfn(Object *obj) |
| 1105 | { |
| 1106 | MemoryRegion *mr = MEMORY_REGION(obj); |
| 1107 | |
| 1108 | mr->is_iommu = true; |
| 1109 | } |
| 1110 | |
Paolo Bonzini | b018ddf | 2013-05-24 14:48:38 +0200 | [diff] [blame] | 1111 | static uint64_t unassigned_mem_read(void *opaque, hwaddr addr, |
| 1112 | unsigned size) |
| 1113 | { |
| 1114 | #ifdef DEBUG_UNASSIGNED |
| 1115 | printf("Unassigned mem read " TARGET_FMT_plx "\n", addr); |
| 1116 | #endif |
Andreas Färber | 4917cf4 | 2013-05-27 05:17:50 +0200 | [diff] [blame] | 1117 | if (current_cpu != NULL) { |
| 1118 | cpu_unassigned_access(current_cpu, addr, false, false, 0, size); |
Andreas Färber | c658b94 | 2013-05-27 06:49:53 +0200 | [diff] [blame] | 1119 | } |
Jan Kiszka | 68a7439 | 2013-09-02 18:43:31 +0200 | [diff] [blame] | 1120 | return 0; |
Paolo Bonzini | b018ddf | 2013-05-24 14:48:38 +0200 | [diff] [blame] | 1121 | } |
| 1122 | |
| 1123 | static void unassigned_mem_write(void *opaque, hwaddr addr, |
| 1124 | uint64_t val, unsigned size) |
| 1125 | { |
| 1126 | #ifdef DEBUG_UNASSIGNED |
| 1127 | printf("Unassigned mem write " TARGET_FMT_plx " = 0x%"PRIx64"\n", addr, val); |
| 1128 | #endif |
Andreas Färber | 4917cf4 | 2013-05-27 05:17:50 +0200 | [diff] [blame] | 1129 | if (current_cpu != NULL) { |
| 1130 | cpu_unassigned_access(current_cpu, addr, true, false, 0, size); |
Andreas Färber | c658b94 | 2013-05-27 06:49:53 +0200 | [diff] [blame] | 1131 | } |
Paolo Bonzini | b018ddf | 2013-05-24 14:48:38 +0200 | [diff] [blame] | 1132 | } |
| 1133 | |
Paolo Bonzini | d197063 | 2013-05-24 13:23:38 +0200 | [diff] [blame] | 1134 | static bool unassigned_mem_accepts(void *opaque, hwaddr addr, |
| 1135 | unsigned size, bool is_write) |
| 1136 | { |
| 1137 | return false; |
| 1138 | } |
| 1139 | |
| 1140 | const MemoryRegionOps unassigned_mem_ops = { |
| 1141 | .valid.accepts = unassigned_mem_accepts, |
| 1142 | .endianness = DEVICE_NATIVE_ENDIAN, |
| 1143 | }; |
| 1144 | |
Alex Williamson | 4a2e242 | 2016-10-31 09:53:03 -0600 | [diff] [blame] | 1145 | static uint64_t memory_region_ram_device_read(void *opaque, |
| 1146 | hwaddr addr, unsigned size) |
| 1147 | { |
| 1148 | MemoryRegion *mr = opaque; |
| 1149 | uint64_t data = (uint64_t)~0; |
| 1150 | |
| 1151 | switch (size) { |
| 1152 | case 1: |
| 1153 | data = *(uint8_t *)(mr->ram_block->host + addr); |
| 1154 | break; |
| 1155 | case 2: |
| 1156 | data = *(uint16_t *)(mr->ram_block->host + addr); |
| 1157 | break; |
| 1158 | case 4: |
| 1159 | data = *(uint32_t *)(mr->ram_block->host + addr); |
| 1160 | break; |
| 1161 | case 8: |
| 1162 | data = *(uint64_t *)(mr->ram_block->host + addr); |
| 1163 | break; |
| 1164 | } |
| 1165 | |
| 1166 | trace_memory_region_ram_device_read(get_cpu_index(), mr, addr, data, size); |
| 1167 | |
| 1168 | return data; |
| 1169 | } |
| 1170 | |
| 1171 | static void memory_region_ram_device_write(void *opaque, hwaddr addr, |
| 1172 | uint64_t data, unsigned size) |
| 1173 | { |
| 1174 | MemoryRegion *mr = opaque; |
| 1175 | |
| 1176 | trace_memory_region_ram_device_write(get_cpu_index(), mr, addr, data, size); |
| 1177 | |
| 1178 | switch (size) { |
| 1179 | case 1: |
| 1180 | *(uint8_t *)(mr->ram_block->host + addr) = (uint8_t)data; |
| 1181 | break; |
| 1182 | case 2: |
| 1183 | *(uint16_t *)(mr->ram_block->host + addr) = (uint16_t)data; |
| 1184 | break; |
| 1185 | case 4: |
| 1186 | *(uint32_t *)(mr->ram_block->host + addr) = (uint32_t)data; |
| 1187 | break; |
| 1188 | case 8: |
| 1189 | *(uint64_t *)(mr->ram_block->host + addr) = data; |
| 1190 | break; |
| 1191 | } |
| 1192 | } |
| 1193 | |
| 1194 | static const MemoryRegionOps ram_device_mem_ops = { |
| 1195 | .read = memory_region_ram_device_read, |
| 1196 | .write = memory_region_ram_device_write, |
Yongji Xie | c99a29e | 2017-02-27 12:52:44 +0800 | [diff] [blame] | 1197 | .endianness = DEVICE_HOST_ENDIAN, |
Alex Williamson | 4a2e242 | 2016-10-31 09:53:03 -0600 | [diff] [blame] | 1198 | .valid = { |
| 1199 | .min_access_size = 1, |
| 1200 | .max_access_size = 8, |
| 1201 | .unaligned = true, |
| 1202 | }, |
| 1203 | .impl = { |
| 1204 | .min_access_size = 1, |
| 1205 | .max_access_size = 8, |
| 1206 | .unaligned = true, |
| 1207 | }, |
| 1208 | }; |
| 1209 | |
Paolo Bonzini | d270203 | 2013-05-24 11:55:06 +0200 | [diff] [blame] | 1210 | bool memory_region_access_valid(MemoryRegion *mr, |
| 1211 | hwaddr addr, |
| 1212 | unsigned size, |
| 1213 | bool is_write) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1214 | { |
Paolo Bonzini | a014ed0 | 2013-05-24 17:48:52 +0200 | [diff] [blame] | 1215 | int access_size_min, access_size_max; |
| 1216 | int access_size, i; |
Avi Kivity | 897fa7c | 2011-11-13 13:05:27 +0200 | [diff] [blame] | 1217 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1218 | if (!mr->ops->valid.unaligned && (addr & (size - 1))) { |
| 1219 | return false; |
| 1220 | } |
| 1221 | |
Paolo Bonzini | a014ed0 | 2013-05-24 17:48:52 +0200 | [diff] [blame] | 1222 | if (!mr->ops->valid.accepts) { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1223 | return true; |
| 1224 | } |
| 1225 | |
Paolo Bonzini | a014ed0 | 2013-05-24 17:48:52 +0200 | [diff] [blame] | 1226 | access_size_min = mr->ops->valid.min_access_size; |
| 1227 | if (!mr->ops->valid.min_access_size) { |
| 1228 | access_size_min = 1; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1229 | } |
Paolo Bonzini | a014ed0 | 2013-05-24 17:48:52 +0200 | [diff] [blame] | 1230 | |
| 1231 | access_size_max = mr->ops->valid.max_access_size; |
| 1232 | if (!mr->ops->valid.max_access_size) { |
| 1233 | access_size_max = 4; |
| 1234 | } |
| 1235 | |
| 1236 | access_size = MAX(MIN(size, access_size_max), access_size_min); |
| 1237 | for (i = 0; i < size; i += access_size) { |
| 1238 | if (!mr->ops->valid.accepts(mr->opaque, addr + i, access_size, |
| 1239 | is_write)) { |
| 1240 | return false; |
| 1241 | } |
| 1242 | } |
| 1243 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1244 | return true; |
| 1245 | } |
| 1246 | |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 1247 | static MemTxResult memory_region_dispatch_read1(MemoryRegion *mr, |
| 1248 | hwaddr addr, |
| 1249 | uint64_t *pval, |
| 1250 | unsigned size, |
| 1251 | MemTxAttrs attrs) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1252 | { |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 1253 | *pval = 0; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1254 | |
Paolo Bonzini | ce5d2f3 | 2013-05-24 17:45:48 +0200 | [diff] [blame] | 1255 | if (mr->ops->read) { |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 1256 | return access_with_adjusted_size(addr, pval, size, |
| 1257 | mr->ops->impl.min_access_size, |
| 1258 | mr->ops->impl.max_access_size, |
| 1259 | memory_region_read_accessor, |
| 1260 | mr, attrs); |
| 1261 | } else if (mr->ops->read_with_attrs) { |
| 1262 | return access_with_adjusted_size(addr, pval, size, |
| 1263 | mr->ops->impl.min_access_size, |
| 1264 | mr->ops->impl.max_access_size, |
| 1265 | memory_region_read_with_attrs_accessor, |
| 1266 | mr, attrs); |
Paolo Bonzini | ce5d2f3 | 2013-05-24 17:45:48 +0200 | [diff] [blame] | 1267 | } else { |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 1268 | return access_with_adjusted_size(addr, pval, size, 1, 4, |
| 1269 | memory_region_oldmmio_read_accessor, |
| 1270 | mr, attrs); |
Avi Kivity | 74901c3 | 2011-07-26 14:26:10 +0300 | [diff] [blame] | 1271 | } |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1272 | } |
| 1273 | |
Peter Maydell | 3b64349 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 1274 | MemTxResult memory_region_dispatch_read(MemoryRegion *mr, |
| 1275 | hwaddr addr, |
| 1276 | uint64_t *pval, |
| 1277 | unsigned size, |
| 1278 | MemTxAttrs attrs) |
Avi Kivity | a621f38 | 2012-01-02 13:12:08 +0200 | [diff] [blame] | 1279 | { |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 1280 | MemTxResult r; |
| 1281 | |
Paolo Bonzini | 791af8c | 2013-05-24 16:10:39 +0200 | [diff] [blame] | 1282 | if (!memory_region_access_valid(mr, addr, size, false)) { |
| 1283 | *pval = unassigned_mem_read(mr, addr, size); |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 1284 | return MEMTX_DECODE_ERROR; |
Paolo Bonzini | 791af8c | 2013-05-24 16:10:39 +0200 | [diff] [blame] | 1285 | } |
Avi Kivity | a621f38 | 2012-01-02 13:12:08 +0200 | [diff] [blame] | 1286 | |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 1287 | r = memory_region_dispatch_read1(mr, addr, pval, size, attrs); |
Paolo Bonzini | 791af8c | 2013-05-24 16:10:39 +0200 | [diff] [blame] | 1288 | adjust_endianness(mr, pval, size); |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 1289 | return r; |
Avi Kivity | a621f38 | 2012-01-02 13:12:08 +0200 | [diff] [blame] | 1290 | } |
| 1291 | |
Pavel Fedin | 8c56c1a | 2015-11-20 12:37:16 +0300 | [diff] [blame] | 1292 | /* Return true if an eventfd was signalled */ |
| 1293 | static bool memory_region_dispatch_write_eventfds(MemoryRegion *mr, |
| 1294 | hwaddr addr, |
| 1295 | uint64_t data, |
| 1296 | unsigned size, |
| 1297 | MemTxAttrs attrs) |
| 1298 | { |
| 1299 | MemoryRegionIoeventfd ioeventfd = { |
| 1300 | .addr = addrrange_make(int128_make64(addr), int128_make64(size)), |
| 1301 | .data = data, |
| 1302 | }; |
| 1303 | unsigned i; |
| 1304 | |
| 1305 | for (i = 0; i < mr->ioeventfd_nb; i++) { |
| 1306 | ioeventfd.match_data = mr->ioeventfds[i].match_data; |
| 1307 | ioeventfd.e = mr->ioeventfds[i].e; |
| 1308 | |
| 1309 | if (memory_region_ioeventfd_equal(ioeventfd, mr->ioeventfds[i])) { |
| 1310 | event_notifier_set(ioeventfd.e); |
| 1311 | return true; |
| 1312 | } |
| 1313 | } |
| 1314 | |
| 1315 | return false; |
| 1316 | } |
| 1317 | |
Peter Maydell | 3b64349 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 1318 | MemTxResult memory_region_dispatch_write(MemoryRegion *mr, |
| 1319 | hwaddr addr, |
| 1320 | uint64_t data, |
| 1321 | unsigned size, |
| 1322 | MemTxAttrs attrs) |
Avi Kivity | a621f38 | 2012-01-02 13:12:08 +0200 | [diff] [blame] | 1323 | { |
Avi Kivity | 897fa7c | 2011-11-13 13:05:27 +0200 | [diff] [blame] | 1324 | if (!memory_region_access_valid(mr, addr, size, true)) { |
Paolo Bonzini | b018ddf | 2013-05-24 14:48:38 +0200 | [diff] [blame] | 1325 | unassigned_mem_write(mr, addr, data, size); |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 1326 | return MEMTX_DECODE_ERROR; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1327 | } |
| 1328 | |
Avi Kivity | a621f38 | 2012-01-02 13:12:08 +0200 | [diff] [blame] | 1329 | adjust_endianness(mr, &data, size); |
| 1330 | |
Pavel Fedin | 8c56c1a | 2015-11-20 12:37:16 +0300 | [diff] [blame] | 1331 | if ((!kvm_eventfds_enabled()) && |
| 1332 | memory_region_dispatch_write_eventfds(mr, addr, data, size, attrs)) { |
| 1333 | return MEMTX_OK; |
| 1334 | } |
| 1335 | |
Paolo Bonzini | ce5d2f3 | 2013-05-24 17:45:48 +0200 | [diff] [blame] | 1336 | if (mr->ops->write) { |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 1337 | return access_with_adjusted_size(addr, &data, size, |
| 1338 | mr->ops->impl.min_access_size, |
| 1339 | mr->ops->impl.max_access_size, |
| 1340 | memory_region_write_accessor, mr, |
| 1341 | attrs); |
| 1342 | } else if (mr->ops->write_with_attrs) { |
| 1343 | return |
| 1344 | access_with_adjusted_size(addr, &data, size, |
| 1345 | mr->ops->impl.min_access_size, |
| 1346 | mr->ops->impl.max_access_size, |
| 1347 | memory_region_write_with_attrs_accessor, |
| 1348 | mr, attrs); |
Paolo Bonzini | ce5d2f3 | 2013-05-24 17:45:48 +0200 | [diff] [blame] | 1349 | } else { |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 1350 | return access_with_adjusted_size(addr, &data, size, 1, 4, |
| 1351 | memory_region_oldmmio_write_accessor, |
| 1352 | mr, attrs); |
Avi Kivity | 74901c3 | 2011-07-26 14:26:10 +0300 | [diff] [blame] | 1353 | } |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1354 | } |
| 1355 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1356 | void memory_region_init_io(MemoryRegion *mr, |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 1357 | Object *owner, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1358 | const MemoryRegionOps *ops, |
| 1359 | void *opaque, |
| 1360 | const char *name, |
| 1361 | uint64_t size) |
| 1362 | { |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 1363 | memory_region_init(mr, owner, name, size); |
Pavel Fedin | 6d6d2ab | 2015-08-13 11:26:21 +0100 | [diff] [blame] | 1364 | mr->ops = ops ? ops : &unassigned_mem_ops; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1365 | mr->opaque = opaque; |
Avi Kivity | 14a3c10 | 2011-07-26 14:26:06 +0300 | [diff] [blame] | 1366 | mr->terminates = true; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1367 | } |
| 1368 | |
Peter Maydell | 1cfe48c | 2017-07-07 15:42:49 +0100 | [diff] [blame] | 1369 | void memory_region_init_ram_nomigrate(MemoryRegion *mr, |
| 1370 | Object *owner, |
| 1371 | const char *name, |
| 1372 | uint64_t size, |
| 1373 | Error **errp) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1374 | { |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 1375 | memory_region_init(mr, owner, name, size); |
Avi Kivity | 8ea9252 | 2011-12-08 15:58:43 +0200 | [diff] [blame] | 1376 | mr->ram = true; |
Avi Kivity | 14a3c10 | 2011-07-26 14:26:06 +0300 | [diff] [blame] | 1377 | mr->terminates = true; |
Avi Kivity | 545e92e | 2011-08-08 19:58:48 +0300 | [diff] [blame] | 1378 | mr->destructor = memory_region_destructor_ram; |
Fam Zheng | 8e41fb6 | 2016-03-01 14:18:21 +0800 | [diff] [blame] | 1379 | mr->ram_block = qemu_ram_alloc(size, mr, errp); |
Paolo Bonzini | 677e780 | 2015-03-23 10:53:21 +0100 | [diff] [blame] | 1380 | mr->dirty_log_mask = tcg_enabled() ? (1 << DIRTY_MEMORY_CODE) : 0; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1381 | } |
| 1382 | |
Michael S. Tsirkin | 60786ef | 2014-11-17 00:24:36 +0200 | [diff] [blame] | 1383 | void memory_region_init_resizeable_ram(MemoryRegion *mr, |
| 1384 | Object *owner, |
| 1385 | const char *name, |
| 1386 | uint64_t size, |
| 1387 | uint64_t max_size, |
| 1388 | void (*resized)(const char*, |
| 1389 | uint64_t length, |
| 1390 | void *host), |
| 1391 | Error **errp) |
| 1392 | { |
| 1393 | memory_region_init(mr, owner, name, size); |
| 1394 | mr->ram = true; |
| 1395 | mr->terminates = true; |
| 1396 | mr->destructor = memory_region_destructor_ram; |
Fam Zheng | 8e41fb6 | 2016-03-01 14:18:21 +0800 | [diff] [blame] | 1397 | mr->ram_block = qemu_ram_alloc_resizeable(size, max_size, resized, |
| 1398 | mr, errp); |
Paolo Bonzini | 677e780 | 2015-03-23 10:53:21 +0100 | [diff] [blame] | 1399 | mr->dirty_log_mask = tcg_enabled() ? (1 << DIRTY_MEMORY_CODE) : 0; |
Michael S. Tsirkin | 60786ef | 2014-11-17 00:24:36 +0200 | [diff] [blame] | 1400 | } |
| 1401 | |
Paolo Bonzini | 0b183fc | 2014-05-14 17:43:19 +0800 | [diff] [blame] | 1402 | #ifdef __linux__ |
| 1403 | void memory_region_init_ram_from_file(MemoryRegion *mr, |
| 1404 | struct Object *owner, |
| 1405 | const char *name, |
| 1406 | uint64_t size, |
Paolo Bonzini | dbcb898 | 2014-06-10 19:15:24 +0800 | [diff] [blame] | 1407 | bool share, |
Paolo Bonzini | 7f56e74 | 2014-05-14 17:43:20 +0800 | [diff] [blame] | 1408 | const char *path, |
| 1409 | Error **errp) |
Paolo Bonzini | 0b183fc | 2014-05-14 17:43:19 +0800 | [diff] [blame] | 1410 | { |
| 1411 | memory_region_init(mr, owner, name, size); |
| 1412 | mr->ram = true; |
| 1413 | mr->terminates = true; |
| 1414 | mr->destructor = memory_region_destructor_ram; |
Fam Zheng | 8e41fb6 | 2016-03-01 14:18:21 +0800 | [diff] [blame] | 1415 | mr->ram_block = qemu_ram_alloc_from_file(size, mr, share, path, errp); |
Paolo Bonzini | 677e780 | 2015-03-23 10:53:21 +0100 | [diff] [blame] | 1416 | mr->dirty_log_mask = tcg_enabled() ? (1 << DIRTY_MEMORY_CODE) : 0; |
Paolo Bonzini | 0b183fc | 2014-05-14 17:43:19 +0800 | [diff] [blame] | 1417 | } |
Marc-André Lureau | fea617c | 2017-06-02 18:12:24 +0400 | [diff] [blame] | 1418 | |
| 1419 | void memory_region_init_ram_from_fd(MemoryRegion *mr, |
| 1420 | struct Object *owner, |
| 1421 | const char *name, |
| 1422 | uint64_t size, |
| 1423 | bool share, |
| 1424 | int fd, |
| 1425 | Error **errp) |
| 1426 | { |
| 1427 | memory_region_init(mr, owner, name, size); |
| 1428 | mr->ram = true; |
| 1429 | mr->terminates = true; |
| 1430 | mr->destructor = memory_region_destructor_ram; |
| 1431 | mr->ram_block = qemu_ram_alloc_from_fd(size, mr, share, fd, errp); |
| 1432 | mr->dirty_log_mask = tcg_enabled() ? (1 << DIRTY_MEMORY_CODE) : 0; |
| 1433 | } |
Paolo Bonzini | 0b183fc | 2014-05-14 17:43:19 +0800 | [diff] [blame] | 1434 | #endif |
| 1435 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1436 | void memory_region_init_ram_ptr(MemoryRegion *mr, |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 1437 | Object *owner, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1438 | const char *name, |
| 1439 | uint64_t size, |
| 1440 | void *ptr) |
| 1441 | { |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 1442 | memory_region_init(mr, owner, name, size); |
Avi Kivity | 8ea9252 | 2011-12-08 15:58:43 +0200 | [diff] [blame] | 1443 | mr->ram = true; |
Avi Kivity | 14a3c10 | 2011-07-26 14:26:06 +0300 | [diff] [blame] | 1444 | mr->terminates = true; |
Eduardo Habkost | fc3e766 | 2015-11-06 19:20:05 -0200 | [diff] [blame] | 1445 | mr->destructor = memory_region_destructor_ram; |
Paolo Bonzini | 677e780 | 2015-03-23 10:53:21 +0100 | [diff] [blame] | 1446 | mr->dirty_log_mask = tcg_enabled() ? (1 << DIRTY_MEMORY_CODE) : 0; |
Hu Tao | ef701d7 | 2014-09-09 13:27:54 +0800 | [diff] [blame] | 1447 | |
| 1448 | /* qemu_ram_alloc_from_ptr cannot fail with ptr != NULL. */ |
| 1449 | assert(ptr != NULL); |
Fam Zheng | 8e41fb6 | 2016-03-01 14:18:21 +0800 | [diff] [blame] | 1450 | mr->ram_block = qemu_ram_alloc_from_ptr(size, ptr, mr, &error_fatal); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1451 | } |
| 1452 | |
Alex Williamson | 21e00fa | 2016-10-31 09:53:03 -0600 | [diff] [blame] | 1453 | void memory_region_init_ram_device_ptr(MemoryRegion *mr, |
| 1454 | Object *owner, |
| 1455 | const char *name, |
| 1456 | uint64_t size, |
| 1457 | void *ptr) |
Nikunj A Dadhania | e4dc3f5 | 2014-09-15 09:28:23 +0530 | [diff] [blame] | 1458 | { |
Alex Williamson | 21e00fa | 2016-10-31 09:53:03 -0600 | [diff] [blame] | 1459 | memory_region_init_ram_ptr(mr, owner, name, size, ptr); |
| 1460 | mr->ram_device = true; |
Alex Williamson | 4a2e242 | 2016-10-31 09:53:03 -0600 | [diff] [blame] | 1461 | mr->ops = &ram_device_mem_ops; |
| 1462 | mr->opaque = mr; |
Nikunj A Dadhania | e4dc3f5 | 2014-09-15 09:28:23 +0530 | [diff] [blame] | 1463 | } |
| 1464 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1465 | void memory_region_init_alias(MemoryRegion *mr, |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 1466 | Object *owner, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1467 | const char *name, |
| 1468 | MemoryRegion *orig, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1469 | hwaddr offset, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1470 | uint64_t size) |
| 1471 | { |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 1472 | memory_region_init(mr, owner, name, size); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1473 | mr->alias = orig; |
| 1474 | mr->alias_offset = offset; |
| 1475 | } |
| 1476 | |
Peter Maydell | b59821a | 2017-07-07 15:42:50 +0100 | [diff] [blame] | 1477 | void memory_region_init_rom_nomigrate(MemoryRegion *mr, |
| 1478 | struct Object *owner, |
| 1479 | const char *name, |
| 1480 | uint64_t size, |
| 1481 | Error **errp) |
Peter Maydell | a1777f7 | 2016-07-04 13:06:35 +0100 | [diff] [blame] | 1482 | { |
| 1483 | memory_region_init(mr, owner, name, size); |
| 1484 | mr->ram = true; |
| 1485 | mr->readonly = true; |
| 1486 | mr->terminates = true; |
| 1487 | mr->destructor = memory_region_destructor_ram; |
| 1488 | mr->ram_block = qemu_ram_alloc(size, mr, errp); |
| 1489 | mr->dirty_log_mask = tcg_enabled() ? (1 << DIRTY_MEMORY_CODE) : 0; |
| 1490 | } |
| 1491 | |
Peter Maydell | b59821a | 2017-07-07 15:42:50 +0100 | [diff] [blame] | 1492 | void memory_region_init_rom_device_nomigrate(MemoryRegion *mr, |
| 1493 | Object *owner, |
| 1494 | const MemoryRegionOps *ops, |
| 1495 | void *opaque, |
| 1496 | const char *name, |
| 1497 | uint64_t size, |
| 1498 | Error **errp) |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 1499 | { |
Peter Maydell | 39e0b03 | 2016-07-04 13:06:35 +0100 | [diff] [blame] | 1500 | assert(ops); |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 1501 | memory_region_init(mr, owner, name, size); |
Avi Kivity | 7bc2b9c | 2011-08-25 14:56:14 +0300 | [diff] [blame] | 1502 | mr->ops = ops; |
Avi Kivity | 75f5941 | 2011-08-26 00:35:15 +0300 | [diff] [blame] | 1503 | mr->opaque = opaque; |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 1504 | mr->terminates = true; |
Avi Kivity | 75c578d | 2012-01-02 15:40:52 +0200 | [diff] [blame] | 1505 | mr->rom_device = true; |
Paolo Bonzini | 58268c8 | 2016-09-14 11:05:59 +0200 | [diff] [blame] | 1506 | mr->destructor = memory_region_destructor_ram; |
Fam Zheng | 8e41fb6 | 2016-03-01 14:18:21 +0800 | [diff] [blame] | 1507 | mr->ram_block = qemu_ram_alloc(size, mr, errp); |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 1508 | } |
| 1509 | |
Alexey Kardashevskiy | 1221a47 | 2017-07-11 13:56:20 +1000 | [diff] [blame] | 1510 | void memory_region_init_iommu(void *_iommu_mr, |
| 1511 | size_t instance_size, |
| 1512 | const char *mrtypename, |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 1513 | Object *owner, |
Avi Kivity | 3095115 | 2012-10-30 13:47:46 +0200 | [diff] [blame] | 1514 | const char *name, |
| 1515 | uint64_t size) |
| 1516 | { |
Alexey Kardashevskiy | 1221a47 | 2017-07-11 13:56:20 +1000 | [diff] [blame] | 1517 | struct IOMMUMemoryRegion *iommu_mr; |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 1518 | struct MemoryRegion *mr; |
| 1519 | |
Alexey Kardashevskiy | 1221a47 | 2017-07-11 13:56:20 +1000 | [diff] [blame] | 1520 | object_initialize(_iommu_mr, instance_size, mrtypename); |
| 1521 | mr = MEMORY_REGION(_iommu_mr); |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 1522 | memory_region_do_init(mr, owner, name, size); |
| 1523 | iommu_mr = IOMMU_MEMORY_REGION(mr); |
Avi Kivity | 3095115 | 2012-10-30 13:47:46 +0200 | [diff] [blame] | 1524 | mr->terminates = true; /* then re-forwards */ |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 1525 | QLIST_INIT(&iommu_mr->iommu_notify); |
| 1526 | iommu_mr->iommu_notify_flags = IOMMU_NOTIFIER_NONE; |
Avi Kivity | 3095115 | 2012-10-30 13:47:46 +0200 | [diff] [blame] | 1527 | } |
| 1528 | |
Peter Crosthwaite | b4fefef | 2014-06-05 23:15:52 -0700 | [diff] [blame] | 1529 | static void memory_region_finalize(Object *obj) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1530 | { |
Peter Crosthwaite | b4fefef | 2014-06-05 23:15:52 -0700 | [diff] [blame] | 1531 | MemoryRegion *mr = MEMORY_REGION(obj); |
| 1532 | |
Paolo Bonzini | 2e2b8eb | 2015-10-01 10:59:50 +0200 | [diff] [blame] | 1533 | assert(!mr->container); |
| 1534 | |
| 1535 | /* We know the region is not visible in any address space (it |
| 1536 | * does not have a container and cannot be a root either because |
| 1537 | * it has no references, so we can blindly clear mr->enabled. |
| 1538 | * memory_region_set_enabled instead could trigger a transaction |
| 1539 | * and cause an infinite loop. |
| 1540 | */ |
| 1541 | mr->enabled = false; |
| 1542 | memory_region_transaction_begin(); |
| 1543 | while (!QTAILQ_EMPTY(&mr->subregions)) { |
| 1544 | MemoryRegion *subregion = QTAILQ_FIRST(&mr->subregions); |
| 1545 | memory_region_del_subregion(mr, subregion); |
| 1546 | } |
| 1547 | memory_region_transaction_commit(); |
| 1548 | |
Avi Kivity | 545e92e | 2011-08-08 19:58:48 +0300 | [diff] [blame] | 1549 | mr->destructor(mr); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1550 | memory_region_clear_coalescing(mr); |
Peter Maydell | 302fa28 | 2014-08-19 20:05:46 +0100 | [diff] [blame] | 1551 | g_free((char *)mr->name); |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1552 | g_free(mr->ioeventfds); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1553 | } |
| 1554 | |
Paolo Bonzini | 803c081 | 2013-05-07 06:59:09 +0200 | [diff] [blame] | 1555 | Object *memory_region_owner(MemoryRegion *mr) |
| 1556 | { |
Paolo Bonzini | 22a893e | 2014-06-11 10:58:06 +0200 | [diff] [blame] | 1557 | Object *obj = OBJECT(mr); |
| 1558 | return obj->parent; |
Paolo Bonzini | 803c081 | 2013-05-07 06:59:09 +0200 | [diff] [blame] | 1559 | } |
| 1560 | |
Paolo Bonzini | 46637be | 2013-05-07 09:06:00 +0200 | [diff] [blame] | 1561 | void memory_region_ref(MemoryRegion *mr) |
| 1562 | { |
Paolo Bonzini | 22a893e | 2014-06-11 10:58:06 +0200 | [diff] [blame] | 1563 | /* MMIO callbacks most likely will access data that belongs |
| 1564 | * to the owner, hence the need to ref/unref the owner whenever |
| 1565 | * the memory region is in use. |
| 1566 | * |
| 1567 | * The memory region is a child of its owner. As long as the |
| 1568 | * owner doesn't call unparent itself on the memory region, |
| 1569 | * ref-ing the owner will also keep the memory region alive. |
Paolo Bonzini | 612263c | 2015-12-09 11:44:25 +0100 | [diff] [blame] | 1570 | * Memory regions without an owner are supposed to never go away; |
| 1571 | * we do not ref/unref them because it slows down DMA sensibly. |
Paolo Bonzini | 22a893e | 2014-06-11 10:58:06 +0200 | [diff] [blame] | 1572 | */ |
Paolo Bonzini | 612263c | 2015-12-09 11:44:25 +0100 | [diff] [blame] | 1573 | if (mr && mr->owner) { |
| 1574 | object_ref(mr->owner); |
Paolo Bonzini | 46637be | 2013-05-07 09:06:00 +0200 | [diff] [blame] | 1575 | } |
| 1576 | } |
| 1577 | |
| 1578 | void memory_region_unref(MemoryRegion *mr) |
| 1579 | { |
Paolo Bonzini | 612263c | 2015-12-09 11:44:25 +0100 | [diff] [blame] | 1580 | if (mr && mr->owner) { |
| 1581 | object_unref(mr->owner); |
Paolo Bonzini | 46637be | 2013-05-07 09:06:00 +0200 | [diff] [blame] | 1582 | } |
| 1583 | } |
| 1584 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1585 | uint64_t memory_region_size(MemoryRegion *mr) |
| 1586 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1587 | if (int128_eq(mr->size, int128_2_64())) { |
| 1588 | return UINT64_MAX; |
| 1589 | } |
| 1590 | return int128_get64(mr->size); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1591 | } |
| 1592 | |
Peter Crosthwaite | 5d546d4 | 2014-08-14 23:55:03 -0700 | [diff] [blame] | 1593 | const char *memory_region_name(const MemoryRegion *mr) |
Avi Kivity | 8991c79 | 2011-12-20 15:53:11 +0200 | [diff] [blame] | 1594 | { |
Peter Crosthwaite | d1dd32a | 2014-08-25 20:10:24 -0700 | [diff] [blame] | 1595 | if (!mr->name) { |
| 1596 | ((MemoryRegion *)mr)->name = |
| 1597 | object_get_canonical_path_component(OBJECT(mr)); |
| 1598 | } |
Peter Maydell | 302fa28 | 2014-08-19 20:05:46 +0100 | [diff] [blame] | 1599 | return mr->name; |
Avi Kivity | 8991c79 | 2011-12-20 15:53:11 +0200 | [diff] [blame] | 1600 | } |
| 1601 | |
Alex Williamson | 21e00fa | 2016-10-31 09:53:03 -0600 | [diff] [blame] | 1602 | bool memory_region_is_ram_device(MemoryRegion *mr) |
Nikunj A Dadhania | e4dc3f5 | 2014-09-15 09:28:23 +0530 | [diff] [blame] | 1603 | { |
Alex Williamson | 21e00fa | 2016-10-31 09:53:03 -0600 | [diff] [blame] | 1604 | return mr->ram_device; |
Nikunj A Dadhania | e4dc3f5 | 2014-09-15 09:28:23 +0530 | [diff] [blame] | 1605 | } |
| 1606 | |
Paolo Bonzini | 2d1a35b | 2015-03-23 10:50:57 +0100 | [diff] [blame] | 1607 | uint8_t memory_region_get_dirty_log_mask(MemoryRegion *mr) |
Avi Kivity | 55043ba | 2011-12-15 17:20:34 +0200 | [diff] [blame] | 1608 | { |
Paolo Bonzini | 6f6a5ef | 2015-03-23 10:57:21 +0100 | [diff] [blame] | 1609 | uint8_t mask = mr->dirty_log_mask; |
Paolo Bonzini | adaad61 | 2016-09-22 16:09:08 +0200 | [diff] [blame] | 1610 | if (global_dirty_log && mr->ram_block) { |
Paolo Bonzini | 6f6a5ef | 2015-03-23 10:57:21 +0100 | [diff] [blame] | 1611 | mask |= (1 << DIRTY_MEMORY_MIGRATION); |
| 1612 | } |
| 1613 | return mask; |
Avi Kivity | 55043ba | 2011-12-15 17:20:34 +0200 | [diff] [blame] | 1614 | } |
| 1615 | |
Paolo Bonzini | 2d1a35b | 2015-03-23 10:50:57 +0100 | [diff] [blame] | 1616 | bool memory_region_is_logging(MemoryRegion *mr, uint8_t client) |
| 1617 | { |
| 1618 | return memory_region_get_dirty_log_mask(mr) & (1 << client); |
| 1619 | } |
| 1620 | |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 1621 | static void memory_region_update_iommu_notify_flags(IOMMUMemoryRegion *iommu_mr) |
Peter Xu | 5bf3d31 | 2016-09-23 13:02:27 +0800 | [diff] [blame] | 1622 | { |
| 1623 | IOMMUNotifierFlag flags = IOMMU_NOTIFIER_NONE; |
| 1624 | IOMMUNotifier *iommu_notifier; |
Alexey Kardashevskiy | 1221a47 | 2017-07-11 13:56:20 +1000 | [diff] [blame] | 1625 | IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_GET_CLASS(iommu_mr); |
Peter Xu | 5bf3d31 | 2016-09-23 13:02:27 +0800 | [diff] [blame] | 1626 | |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 1627 | IOMMU_NOTIFIER_FOREACH(iommu_notifier, iommu_mr) { |
Peter Xu | 5bf3d31 | 2016-09-23 13:02:27 +0800 | [diff] [blame] | 1628 | flags |= iommu_notifier->notifier_flags; |
| 1629 | } |
| 1630 | |
Alexey Kardashevskiy | 1221a47 | 2017-07-11 13:56:20 +1000 | [diff] [blame] | 1631 | if (flags != iommu_mr->iommu_notify_flags && imrc->notify_flag_changed) { |
| 1632 | imrc->notify_flag_changed(iommu_mr, |
| 1633 | iommu_mr->iommu_notify_flags, |
| 1634 | flags); |
Peter Xu | 5bf3d31 | 2016-09-23 13:02:27 +0800 | [diff] [blame] | 1635 | } |
| 1636 | |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 1637 | iommu_mr->iommu_notify_flags = flags; |
Peter Xu | 5bf3d31 | 2016-09-23 13:02:27 +0800 | [diff] [blame] | 1638 | } |
| 1639 | |
Peter Xu | cdb3081 | 2016-09-23 13:02:26 +0800 | [diff] [blame] | 1640 | void memory_region_register_iommu_notifier(MemoryRegion *mr, |
| 1641 | IOMMUNotifier *n) |
David Gibson | 0686657 | 2013-05-14 19:13:56 +1000 | [diff] [blame] | 1642 | { |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 1643 | IOMMUMemoryRegion *iommu_mr; |
| 1644 | |
Jason Wang | efcd38c | 2016-12-30 18:09:17 +0800 | [diff] [blame] | 1645 | if (mr->alias) { |
| 1646 | memory_region_register_iommu_notifier(mr->alias, n); |
| 1647 | return; |
| 1648 | } |
| 1649 | |
Peter Xu | cdb3081 | 2016-09-23 13:02:26 +0800 | [diff] [blame] | 1650 | /* We need to register for at least one bitfield */ |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 1651 | iommu_mr = IOMMU_MEMORY_REGION(mr); |
Peter Xu | cdb3081 | 2016-09-23 13:02:26 +0800 | [diff] [blame] | 1652 | assert(n->notifier_flags != IOMMU_NOTIFIER_NONE); |
Peter Xu | 698feb5 | 2017-04-07 18:59:07 +0800 | [diff] [blame] | 1653 | assert(n->start <= n->end); |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 1654 | QLIST_INSERT_HEAD(&iommu_mr->iommu_notify, n, node); |
| 1655 | memory_region_update_iommu_notify_flags(iommu_mr); |
David Gibson | 0686657 | 2013-05-14 19:13:56 +1000 | [diff] [blame] | 1656 | } |
| 1657 | |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 1658 | uint64_t memory_region_iommu_get_min_page_size(IOMMUMemoryRegion *iommu_mr) |
David Gibson | a788f22 | 2015-09-30 12:13:55 +1000 | [diff] [blame] | 1659 | { |
Alexey Kardashevskiy | 1221a47 | 2017-07-11 13:56:20 +1000 | [diff] [blame] | 1660 | IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_GET_CLASS(iommu_mr); |
| 1661 | |
| 1662 | if (imrc->get_min_page_size) { |
| 1663 | return imrc->get_min_page_size(iommu_mr); |
Alexey Kardashevskiy | f682e9c | 2016-06-21 11:14:01 +1000 | [diff] [blame] | 1664 | } |
| 1665 | return TARGET_PAGE_SIZE; |
| 1666 | } |
| 1667 | |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 1668 | void memory_region_iommu_replay(IOMMUMemoryRegion *iommu_mr, IOMMUNotifier *n) |
Alexey Kardashevskiy | f682e9c | 2016-06-21 11:14:01 +1000 | [diff] [blame] | 1669 | { |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 1670 | MemoryRegion *mr = MEMORY_REGION(iommu_mr); |
Alexey Kardashevskiy | 1221a47 | 2017-07-11 13:56:20 +1000 | [diff] [blame] | 1671 | IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_GET_CLASS(iommu_mr); |
Alexey Kardashevskiy | f682e9c | 2016-06-21 11:14:01 +1000 | [diff] [blame] | 1672 | hwaddr addr, granularity; |
David Gibson | a788f22 | 2015-09-30 12:13:55 +1000 | [diff] [blame] | 1673 | IOMMUTLBEntry iotlb; |
| 1674 | |
Peter Xu | faa362e | 2017-04-07 18:59:11 +0800 | [diff] [blame] | 1675 | /* If the IOMMU has its own replay callback, override */ |
Alexey Kardashevskiy | 1221a47 | 2017-07-11 13:56:20 +1000 | [diff] [blame] | 1676 | if (imrc->replay) { |
| 1677 | imrc->replay(iommu_mr, n); |
Peter Xu | faa362e | 2017-04-07 18:59:11 +0800 | [diff] [blame] | 1678 | return; |
| 1679 | } |
| 1680 | |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 1681 | granularity = memory_region_iommu_get_min_page_size(iommu_mr); |
Alexey Kardashevskiy | f682e9c | 2016-06-21 11:14:01 +1000 | [diff] [blame] | 1682 | |
David Gibson | a788f22 | 2015-09-30 12:13:55 +1000 | [diff] [blame] | 1683 | for (addr = 0; addr < memory_region_size(mr); addr += granularity) { |
Alexey Kardashevskiy | 1221a47 | 2017-07-11 13:56:20 +1000 | [diff] [blame] | 1684 | iotlb = imrc->translate(iommu_mr, addr, IOMMU_NONE); |
David Gibson | a788f22 | 2015-09-30 12:13:55 +1000 | [diff] [blame] | 1685 | if (iotlb.perm != IOMMU_NONE) { |
| 1686 | n->notify(n, &iotlb); |
| 1687 | } |
| 1688 | |
| 1689 | /* if (2^64 - MR size) < granularity, it's possible to get an |
| 1690 | * infinite loop here. This should catch such a wraparound */ |
| 1691 | if ((addr + granularity) < addr) { |
| 1692 | break; |
| 1693 | } |
| 1694 | } |
| 1695 | } |
| 1696 | |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 1697 | void memory_region_iommu_replay_all(IOMMUMemoryRegion *iommu_mr) |
Peter Xu | de472e4 | 2017-04-07 18:59:09 +0800 | [diff] [blame] | 1698 | { |
| 1699 | IOMMUNotifier *notifier; |
| 1700 | |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 1701 | IOMMU_NOTIFIER_FOREACH(notifier, iommu_mr) { |
| 1702 | memory_region_iommu_replay(iommu_mr, notifier); |
Peter Xu | de472e4 | 2017-04-07 18:59:09 +0800 | [diff] [blame] | 1703 | } |
| 1704 | } |
| 1705 | |
Peter Xu | cdb3081 | 2016-09-23 13:02:26 +0800 | [diff] [blame] | 1706 | void memory_region_unregister_iommu_notifier(MemoryRegion *mr, |
| 1707 | IOMMUNotifier *n) |
David Gibson | 0686657 | 2013-05-14 19:13:56 +1000 | [diff] [blame] | 1708 | { |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 1709 | IOMMUMemoryRegion *iommu_mr; |
| 1710 | |
Jason Wang | efcd38c | 2016-12-30 18:09:17 +0800 | [diff] [blame] | 1711 | if (mr->alias) { |
| 1712 | memory_region_unregister_iommu_notifier(mr->alias, n); |
| 1713 | return; |
| 1714 | } |
Peter Xu | cdb3081 | 2016-09-23 13:02:26 +0800 | [diff] [blame] | 1715 | QLIST_REMOVE(n, node); |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 1716 | iommu_mr = IOMMU_MEMORY_REGION(mr); |
| 1717 | memory_region_update_iommu_notify_flags(iommu_mr); |
David Gibson | 0686657 | 2013-05-14 19:13:56 +1000 | [diff] [blame] | 1718 | } |
| 1719 | |
Peter Xu | bd2bfa4 | 2017-04-07 18:59:10 +0800 | [diff] [blame] | 1720 | void memory_region_notify_one(IOMMUNotifier *notifier, |
| 1721 | IOMMUTLBEntry *entry) |
David Gibson | 0686657 | 2013-05-14 19:13:56 +1000 | [diff] [blame] | 1722 | { |
Peter Xu | cdb3081 | 2016-09-23 13:02:26 +0800 | [diff] [blame] | 1723 | IOMMUNotifierFlag request_flags; |
| 1724 | |
Peter Xu | bd2bfa4 | 2017-04-07 18:59:10 +0800 | [diff] [blame] | 1725 | /* |
| 1726 | * Skip the notification if the notification does not overlap |
| 1727 | * with registered range. |
| 1728 | */ |
| 1729 | if (notifier->start > entry->iova + entry->addr_mask + 1 || |
| 1730 | notifier->end < entry->iova) { |
| 1731 | return; |
| 1732 | } |
Peter Xu | cdb3081 | 2016-09-23 13:02:26 +0800 | [diff] [blame] | 1733 | |
Peter Xu | bd2bfa4 | 2017-04-07 18:59:10 +0800 | [diff] [blame] | 1734 | if (entry->perm & IOMMU_RW) { |
Peter Xu | cdb3081 | 2016-09-23 13:02:26 +0800 | [diff] [blame] | 1735 | request_flags = IOMMU_NOTIFIER_MAP; |
| 1736 | } else { |
| 1737 | request_flags = IOMMU_NOTIFIER_UNMAP; |
| 1738 | } |
| 1739 | |
Peter Xu | bd2bfa4 | 2017-04-07 18:59:10 +0800 | [diff] [blame] | 1740 | if (notifier->notifier_flags & request_flags) { |
| 1741 | notifier->notify(notifier, entry); |
| 1742 | } |
| 1743 | } |
| 1744 | |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 1745 | void memory_region_notify_iommu(IOMMUMemoryRegion *iommu_mr, |
Peter Xu | bd2bfa4 | 2017-04-07 18:59:10 +0800 | [diff] [blame] | 1746 | IOMMUTLBEntry entry) |
| 1747 | { |
| 1748 | IOMMUNotifier *iommu_notifier; |
| 1749 | |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 1750 | assert(memory_region_is_iommu(MEMORY_REGION(iommu_mr))); |
Peter Xu | bd2bfa4 | 2017-04-07 18:59:10 +0800 | [diff] [blame] | 1751 | |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 1752 | IOMMU_NOTIFIER_FOREACH(iommu_notifier, iommu_mr) { |
Peter Xu | bd2bfa4 | 2017-04-07 18:59:10 +0800 | [diff] [blame] | 1753 | memory_region_notify_one(iommu_notifier, &entry); |
Peter Xu | cdb3081 | 2016-09-23 13:02:26 +0800 | [diff] [blame] | 1754 | } |
David Gibson | 0686657 | 2013-05-14 19:13:56 +1000 | [diff] [blame] | 1755 | } |
| 1756 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1757 | void memory_region_set_log(MemoryRegion *mr, bool log, unsigned client) |
| 1758 | { |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 1759 | uint8_t mask = 1 << client; |
Paolo Bonzini | deb809e | 2015-07-14 13:56:53 +0200 | [diff] [blame] | 1760 | uint8_t old_logging; |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 1761 | |
Paolo Bonzini | dbddac6 | 2015-03-23 10:31:53 +0100 | [diff] [blame] | 1762 | assert(client == DIRTY_MEMORY_VGA); |
Paolo Bonzini | deb809e | 2015-07-14 13:56:53 +0200 | [diff] [blame] | 1763 | old_logging = mr->vga_logging_count; |
| 1764 | mr->vga_logging_count += log ? 1 : -1; |
| 1765 | if (!!old_logging == !!mr->vga_logging_count) { |
| 1766 | return; |
| 1767 | } |
| 1768 | |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1769 | memory_region_transaction_begin(); |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 1770 | mr->dirty_log_mask = (mr->dirty_log_mask & ~mask) | (log * mask); |
Jan Kiszka | 22bde71 | 2012-11-05 16:45:56 +0100 | [diff] [blame] | 1771 | memory_region_update_pending |= mr->enabled; |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1772 | memory_region_transaction_commit(); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1773 | } |
| 1774 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1775 | bool memory_region_get_dirty(MemoryRegion *mr, hwaddr addr, |
| 1776 | hwaddr size, unsigned client) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1777 | { |
Fam Zheng | 8e41fb6 | 2016-03-01 14:18:21 +0800 | [diff] [blame] | 1778 | assert(mr->ram_block); |
| 1779 | return cpu_physical_memory_get_dirty(memory_region_get_ram_addr(mr) + addr, |
| 1780 | size, client); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1781 | } |
| 1782 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1783 | void memory_region_set_dirty(MemoryRegion *mr, hwaddr addr, |
| 1784 | hwaddr size) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1785 | { |
Fam Zheng | 8e41fb6 | 2016-03-01 14:18:21 +0800 | [diff] [blame] | 1786 | assert(mr->ram_block); |
| 1787 | cpu_physical_memory_set_dirty_range(memory_region_get_ram_addr(mr) + addr, |
| 1788 | size, |
Paolo Bonzini | 58d2707 | 2015-03-23 11:56:01 +0100 | [diff] [blame] | 1789 | memory_region_get_dirty_log_mask(mr)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1790 | } |
| 1791 | |
Juan Quintela | 6c279db | 2012-10-17 20:24:28 +0200 | [diff] [blame] | 1792 | bool memory_region_test_and_clear_dirty(MemoryRegion *mr, hwaddr addr, |
| 1793 | hwaddr size, unsigned client) |
| 1794 | { |
Fam Zheng | 8e41fb6 | 2016-03-01 14:18:21 +0800 | [diff] [blame] | 1795 | assert(mr->ram_block); |
| 1796 | return cpu_physical_memory_test_and_clear_dirty( |
| 1797 | memory_region_get_ram_addr(mr) + addr, size, client); |
Juan Quintela | 6c279db | 2012-10-17 20:24:28 +0200 | [diff] [blame] | 1798 | } |
| 1799 | |
Gerd Hoffmann | 8deaf12 | 2017-04-21 11:16:25 +0200 | [diff] [blame] | 1800 | DirtyBitmapSnapshot *memory_region_snapshot_and_clear_dirty(MemoryRegion *mr, |
| 1801 | hwaddr addr, |
| 1802 | hwaddr size, |
| 1803 | unsigned client) |
| 1804 | { |
| 1805 | assert(mr->ram_block); |
| 1806 | return cpu_physical_memory_snapshot_and_clear_dirty( |
| 1807 | memory_region_get_ram_addr(mr) + addr, size, client); |
| 1808 | } |
| 1809 | |
| 1810 | bool memory_region_snapshot_get_dirty(MemoryRegion *mr, DirtyBitmapSnapshot *snap, |
| 1811 | hwaddr addr, hwaddr size) |
| 1812 | { |
| 1813 | assert(mr->ram_block); |
| 1814 | return cpu_physical_memory_snapshot_get_dirty(snap, |
| 1815 | memory_region_get_ram_addr(mr) + addr, size); |
| 1816 | } |
Juan Quintela | 6c279db | 2012-10-17 20:24:28 +0200 | [diff] [blame] | 1817 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1818 | void memory_region_sync_dirty_bitmap(MemoryRegion *mr) |
| 1819 | { |
Paolo Bonzini | 0a752ee | 2016-09-23 11:08:54 +0200 | [diff] [blame] | 1820 | MemoryListener *listener; |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 1821 | AddressSpace *as; |
Paolo Bonzini | 0a752ee | 2016-09-23 11:08:54 +0200 | [diff] [blame] | 1822 | FlatView *view; |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 1823 | FlatRange *fr; |
| 1824 | |
Paolo Bonzini | 0a752ee | 2016-09-23 11:08:54 +0200 | [diff] [blame] | 1825 | /* If the same address space has multiple log_sync listeners, we |
| 1826 | * visit that address space's FlatView multiple times. But because |
| 1827 | * log_sync listeners are rare, it's still cheaper than walking each |
| 1828 | * address space once. |
| 1829 | */ |
| 1830 | QTAILQ_FOREACH(listener, &memory_listeners, link) { |
| 1831 | if (!listener->log_sync) { |
| 1832 | continue; |
| 1833 | } |
| 1834 | as = listener->address_space; |
| 1835 | view = address_space_get_flatview(as); |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 1836 | FOR_EACH_FLAT_RANGE(fr, view) { |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 1837 | if (fr->mr == mr) { |
Paolo Bonzini | 0a752ee | 2016-09-23 11:08:54 +0200 | [diff] [blame] | 1838 | MemoryRegionSection mrs = section_from_flat_range(fr, as); |
| 1839 | listener->log_sync(listener, &mrs); |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 1840 | } |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 1841 | } |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 1842 | flatview_unref(view); |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 1843 | } |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1844 | } |
| 1845 | |
| 1846 | void memory_region_set_readonly(MemoryRegion *mr, bool readonly) |
| 1847 | { |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 1848 | if (mr->readonly != readonly) { |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1849 | memory_region_transaction_begin(); |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 1850 | mr->readonly = readonly; |
Jan Kiszka | 22bde71 | 2012-11-05 16:45:56 +0100 | [diff] [blame] | 1851 | memory_region_update_pending |= mr->enabled; |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1852 | memory_region_transaction_commit(); |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 1853 | } |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1854 | } |
| 1855 | |
Jan Kiszka | 5f9a5ea | 2013-05-07 19:04:25 +0200 | [diff] [blame] | 1856 | void memory_region_rom_device_set_romd(MemoryRegion *mr, bool romd_mode) |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 1857 | { |
Jan Kiszka | 5f9a5ea | 2013-05-07 19:04:25 +0200 | [diff] [blame] | 1858 | if (mr->romd_mode != romd_mode) { |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1859 | memory_region_transaction_begin(); |
Jan Kiszka | 5f9a5ea | 2013-05-07 19:04:25 +0200 | [diff] [blame] | 1860 | mr->romd_mode = romd_mode; |
Jan Kiszka | 22bde71 | 2012-11-05 16:45:56 +0100 | [diff] [blame] | 1861 | memory_region_update_pending |= mr->enabled; |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1862 | memory_region_transaction_commit(); |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 1863 | } |
| 1864 | } |
| 1865 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1866 | void memory_region_reset_dirty(MemoryRegion *mr, hwaddr addr, |
| 1867 | hwaddr size, unsigned client) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1868 | { |
Fam Zheng | 8e41fb6 | 2016-03-01 14:18:21 +0800 | [diff] [blame] | 1869 | assert(mr->ram_block); |
| 1870 | cpu_physical_memory_test_and_clear_dirty( |
| 1871 | memory_region_get_ram_addr(mr) + addr, size, client); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1872 | } |
| 1873 | |
Paolo Bonzini | a35ba7b | 2014-06-10 19:15:23 +0800 | [diff] [blame] | 1874 | int memory_region_get_fd(MemoryRegion *mr) |
| 1875 | { |
Paolo Bonzini | 4ff8757 | 2016-03-25 12:30:16 +0100 | [diff] [blame] | 1876 | int fd; |
| 1877 | |
| 1878 | rcu_read_lock(); |
| 1879 | while (mr->alias) { |
| 1880 | mr = mr->alias; |
Paolo Bonzini | a35ba7b | 2014-06-10 19:15:23 +0800 | [diff] [blame] | 1881 | } |
Paolo Bonzini | 4ff8757 | 2016-03-25 12:30:16 +0100 | [diff] [blame] | 1882 | fd = mr->ram_block->fd; |
| 1883 | rcu_read_unlock(); |
Paolo Bonzini | a35ba7b | 2014-06-10 19:15:23 +0800 | [diff] [blame] | 1884 | |
Paolo Bonzini | 4ff8757 | 2016-03-25 12:30:16 +0100 | [diff] [blame] | 1885 | return fd; |
| 1886 | } |
Paolo Bonzini | a35ba7b | 2014-06-10 19:15:23 +0800 | [diff] [blame] | 1887 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1888 | void *memory_region_get_ram_ptr(MemoryRegion *mr) |
| 1889 | { |
Paolo Bonzini | 49b24af | 2015-12-16 10:30:47 +0100 | [diff] [blame] | 1890 | void *ptr; |
| 1891 | uint64_t offset = 0; |
| 1892 | |
| 1893 | rcu_read_lock(); |
| 1894 | while (mr->alias) { |
| 1895 | offset += mr->alias_offset; |
| 1896 | mr = mr->alias; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1897 | } |
Fam Zheng | 8e41fb6 | 2016-03-01 14:18:21 +0800 | [diff] [blame] | 1898 | assert(mr->ram_block); |
Paolo Bonzini | 0878d0e | 2016-02-22 11:02:12 +0100 | [diff] [blame] | 1899 | ptr = qemu_map_ram_ptr(mr->ram_block, offset); |
Paolo Bonzini | 49b24af | 2015-12-16 10:30:47 +0100 | [diff] [blame] | 1900 | rcu_read_unlock(); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1901 | |
Paolo Bonzini | 0878d0e | 2016-02-22 11:02:12 +0100 | [diff] [blame] | 1902 | return ptr; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1903 | } |
| 1904 | |
Paolo Bonzini | 07bdaa4 | 2016-03-25 12:55:08 +0100 | [diff] [blame] | 1905 | MemoryRegion *memory_region_from_host(void *ptr, ram_addr_t *offset) |
| 1906 | { |
| 1907 | RAMBlock *block; |
| 1908 | |
| 1909 | block = qemu_ram_block_from_host(ptr, false, offset); |
| 1910 | if (!block) { |
| 1911 | return NULL; |
| 1912 | } |
| 1913 | |
| 1914 | return block->mr; |
| 1915 | } |
| 1916 | |
Fam Zheng | 7ebb274 | 2016-03-01 14:18:20 +0800 | [diff] [blame] | 1917 | ram_addr_t memory_region_get_ram_addr(MemoryRegion *mr) |
| 1918 | { |
| 1919 | return mr->ram_block ? mr->ram_block->offset : RAM_ADDR_INVALID; |
| 1920 | } |
| 1921 | |
Paolo Bonzini | 37d7c08 | 2015-03-23 10:21:46 +0100 | [diff] [blame] | 1922 | void memory_region_ram_resize(MemoryRegion *mr, ram_addr_t newsize, Error **errp) |
| 1923 | { |
Fam Zheng | 8e41fb6 | 2016-03-01 14:18:21 +0800 | [diff] [blame] | 1924 | assert(mr->ram_block); |
Paolo Bonzini | 37d7c08 | 2015-03-23 10:21:46 +0100 | [diff] [blame] | 1925 | |
Gonglei | fa53a0e | 2016-05-10 10:04:59 +0800 | [diff] [blame] | 1926 | qemu_ram_resize(mr->ram_block, newsize, errp); |
Paolo Bonzini | 37d7c08 | 2015-03-23 10:21:46 +0100 | [diff] [blame] | 1927 | } |
| 1928 | |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 1929 | static void memory_region_update_coalesced_range_as(MemoryRegion *mr, AddressSpace *as) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1930 | { |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 1931 | FlatView *view; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1932 | FlatRange *fr; |
| 1933 | CoalescedMemoryRange *cmr; |
| 1934 | AddrRange tmp; |
Avi Kivity | 95d2994 | 2012-10-02 18:21:54 +0200 | [diff] [blame] | 1935 | MemoryRegionSection section; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1936 | |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 1937 | view = address_space_get_flatview(as); |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 1938 | FOR_EACH_FLAT_RANGE(fr, view) { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1939 | if (fr->mr == mr) { |
Avi Kivity | 95d2994 | 2012-10-02 18:21:54 +0200 | [diff] [blame] | 1940 | section = (MemoryRegionSection) { |
Avi Kivity | f6790af | 2012-10-02 20:13:51 +0200 | [diff] [blame] | 1941 | .address_space = as, |
Avi Kivity | 95d2994 | 2012-10-02 18:21:54 +0200 | [diff] [blame] | 1942 | .offset_within_address_space = int128_get64(fr->addr.start), |
Paolo Bonzini | 052e87b | 2013-05-27 10:08:27 +0200 | [diff] [blame] | 1943 | .size = fr->addr.size, |
Avi Kivity | 95d2994 | 2012-10-02 18:21:54 +0200 | [diff] [blame] | 1944 | }; |
| 1945 | |
Paolo Bonzini | 9a54635 | 2016-09-22 16:23:06 +0200 | [diff] [blame] | 1946 | MEMORY_LISTENER_CALL(as, coalesced_mmio_del, Reverse, §ion, |
Avi Kivity | 95d2994 | 2012-10-02 18:21:54 +0200 | [diff] [blame] | 1947 | int128_get64(fr->addr.start), |
| 1948 | int128_get64(fr->addr.size)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1949 | QTAILQ_FOREACH(cmr, &mr->coalesced, link) { |
| 1950 | tmp = addrrange_shift(cmr->addr, |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1951 | int128_sub(fr->addr.start, |
| 1952 | int128_make64(fr->offset_in_region))); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1953 | if (!addrrange_intersects(tmp, fr->addr)) { |
| 1954 | continue; |
| 1955 | } |
| 1956 | tmp = addrrange_intersection(tmp, fr->addr); |
Paolo Bonzini | 9a54635 | 2016-09-22 16:23:06 +0200 | [diff] [blame] | 1957 | MEMORY_LISTENER_CALL(as, coalesced_mmio_add, Forward, §ion, |
Avi Kivity | 95d2994 | 2012-10-02 18:21:54 +0200 | [diff] [blame] | 1958 | int128_get64(tmp.start), |
| 1959 | int128_get64(tmp.size)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1960 | } |
| 1961 | } |
| 1962 | } |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 1963 | flatview_unref(view); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1964 | } |
| 1965 | |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 1966 | static void memory_region_update_coalesced_range(MemoryRegion *mr) |
| 1967 | { |
| 1968 | AddressSpace *as; |
| 1969 | |
| 1970 | QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) { |
| 1971 | memory_region_update_coalesced_range_as(mr, as); |
| 1972 | } |
| 1973 | } |
| 1974 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1975 | void memory_region_set_coalescing(MemoryRegion *mr) |
| 1976 | { |
| 1977 | memory_region_clear_coalescing(mr); |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1978 | memory_region_add_coalescing(mr, 0, int128_get64(mr->size)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1979 | } |
| 1980 | |
| 1981 | void memory_region_add_coalescing(MemoryRegion *mr, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1982 | hwaddr offset, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1983 | uint64_t size) |
| 1984 | { |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1985 | CoalescedMemoryRange *cmr = g_malloc(sizeof(*cmr)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1986 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1987 | cmr->addr = addrrange_make(int128_make64(offset), int128_make64(size)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1988 | QTAILQ_INSERT_TAIL(&mr->coalesced, cmr, link); |
| 1989 | memory_region_update_coalesced_range(mr); |
Jan Kiszka | d410515 | 2012-08-23 13:02:29 +0200 | [diff] [blame] | 1990 | memory_region_set_flush_coalesced(mr); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1991 | } |
| 1992 | |
| 1993 | void memory_region_clear_coalescing(MemoryRegion *mr) |
| 1994 | { |
| 1995 | CoalescedMemoryRange *cmr; |
Fam Zheng | ab5b3db | 2014-06-13 14:34:41 +0800 | [diff] [blame] | 1996 | bool updated = false; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1997 | |
Jan Kiszka | d410515 | 2012-08-23 13:02:29 +0200 | [diff] [blame] | 1998 | qemu_flush_coalesced_mmio_buffer(); |
| 1999 | mr->flush_coalesced_mmio = false; |
| 2000 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2001 | while (!QTAILQ_EMPTY(&mr->coalesced)) { |
| 2002 | cmr = QTAILQ_FIRST(&mr->coalesced); |
| 2003 | QTAILQ_REMOVE(&mr->coalesced, cmr, link); |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 2004 | g_free(cmr); |
Fam Zheng | ab5b3db | 2014-06-13 14:34:41 +0800 | [diff] [blame] | 2005 | updated = true; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2006 | } |
Fam Zheng | ab5b3db | 2014-06-13 14:34:41 +0800 | [diff] [blame] | 2007 | |
| 2008 | if (updated) { |
| 2009 | memory_region_update_coalesced_range(mr); |
| 2010 | } |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2011 | } |
| 2012 | |
Jan Kiszka | d410515 | 2012-08-23 13:02:29 +0200 | [diff] [blame] | 2013 | void memory_region_set_flush_coalesced(MemoryRegion *mr) |
| 2014 | { |
| 2015 | mr->flush_coalesced_mmio = true; |
| 2016 | } |
| 2017 | |
| 2018 | void memory_region_clear_flush_coalesced(MemoryRegion *mr) |
| 2019 | { |
| 2020 | qemu_flush_coalesced_mmio_buffer(); |
| 2021 | if (QTAILQ_EMPTY(&mr->coalesced)) { |
| 2022 | mr->flush_coalesced_mmio = false; |
| 2023 | } |
| 2024 | } |
| 2025 | |
Jan Kiszka | 196ea13 | 2015-06-18 18:47:20 +0200 | [diff] [blame] | 2026 | void memory_region_set_global_locking(MemoryRegion *mr) |
| 2027 | { |
| 2028 | mr->global_locking = true; |
| 2029 | } |
| 2030 | |
| 2031 | void memory_region_clear_global_locking(MemoryRegion *mr) |
| 2032 | { |
| 2033 | mr->global_locking = false; |
| 2034 | } |
| 2035 | |
Pavel Fedin | 8c56c1a | 2015-11-20 12:37:16 +0300 | [diff] [blame] | 2036 | static bool userspace_eventfd_warning; |
| 2037 | |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 2038 | void memory_region_add_eventfd(MemoryRegion *mr, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2039 | hwaddr addr, |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 2040 | unsigned size, |
| 2041 | bool match_data, |
| 2042 | uint64_t data, |
Paolo Bonzini | 753d5e1 | 2012-07-05 17:16:27 +0200 | [diff] [blame] | 2043 | EventNotifier *e) |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 2044 | { |
| 2045 | MemoryRegionIoeventfd mrfd = { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 2046 | .addr.start = int128_make64(addr), |
| 2047 | .addr.size = int128_make64(size), |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 2048 | .match_data = match_data, |
| 2049 | .data = data, |
Paolo Bonzini | 753d5e1 | 2012-07-05 17:16:27 +0200 | [diff] [blame] | 2050 | .e = e, |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 2051 | }; |
| 2052 | unsigned i; |
| 2053 | |
Pavel Fedin | 8c56c1a | 2015-11-20 12:37:16 +0300 | [diff] [blame] | 2054 | if (kvm_enabled() && (!(kvm_eventfds_enabled() || |
| 2055 | userspace_eventfd_warning))) { |
| 2056 | userspace_eventfd_warning = true; |
| 2057 | error_report("Using eventfd without MMIO binding in KVM. " |
| 2058 | "Suboptimal performance expected"); |
| 2059 | } |
| 2060 | |
Jason Wang | b8aecea | 2015-11-06 16:02:45 +0800 | [diff] [blame] | 2061 | if (size) { |
| 2062 | adjust_endianness(mr, &mrfd.data, size); |
| 2063 | } |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 2064 | memory_region_transaction_begin(); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 2065 | for (i = 0; i < mr->ioeventfd_nb; ++i) { |
| 2066 | if (memory_region_ioeventfd_before(mrfd, mr->ioeventfds[i])) { |
| 2067 | break; |
| 2068 | } |
| 2069 | } |
| 2070 | ++mr->ioeventfd_nb; |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 2071 | mr->ioeventfds = g_realloc(mr->ioeventfds, |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 2072 | sizeof(*mr->ioeventfds) * mr->ioeventfd_nb); |
| 2073 | memmove(&mr->ioeventfds[i+1], &mr->ioeventfds[i], |
| 2074 | sizeof(*mr->ioeventfds) * (mr->ioeventfd_nb-1 - i)); |
| 2075 | mr->ioeventfds[i] = mrfd; |
Gonglei | 4dc5615 | 2014-05-08 11:47:32 +0800 | [diff] [blame] | 2076 | ioeventfd_update_pending |= mr->enabled; |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 2077 | memory_region_transaction_commit(); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 2078 | } |
| 2079 | |
| 2080 | void memory_region_del_eventfd(MemoryRegion *mr, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2081 | hwaddr addr, |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 2082 | unsigned size, |
| 2083 | bool match_data, |
| 2084 | uint64_t data, |
Paolo Bonzini | 753d5e1 | 2012-07-05 17:16:27 +0200 | [diff] [blame] | 2085 | EventNotifier *e) |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 2086 | { |
| 2087 | MemoryRegionIoeventfd mrfd = { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 2088 | .addr.start = int128_make64(addr), |
| 2089 | .addr.size = int128_make64(size), |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 2090 | .match_data = match_data, |
| 2091 | .data = data, |
Paolo Bonzini | 753d5e1 | 2012-07-05 17:16:27 +0200 | [diff] [blame] | 2092 | .e = e, |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 2093 | }; |
| 2094 | unsigned i; |
| 2095 | |
Jason Wang | b8aecea | 2015-11-06 16:02:45 +0800 | [diff] [blame] | 2096 | if (size) { |
| 2097 | adjust_endianness(mr, &mrfd.data, size); |
| 2098 | } |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 2099 | memory_region_transaction_begin(); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 2100 | for (i = 0; i < mr->ioeventfd_nb; ++i) { |
| 2101 | if (memory_region_ioeventfd_equal(mrfd, mr->ioeventfds[i])) { |
| 2102 | break; |
| 2103 | } |
| 2104 | } |
| 2105 | assert(i != mr->ioeventfd_nb); |
| 2106 | memmove(&mr->ioeventfds[i], &mr->ioeventfds[i+1], |
| 2107 | sizeof(*mr->ioeventfds) * (mr->ioeventfd_nb - (i+1))); |
| 2108 | --mr->ioeventfd_nb; |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 2109 | mr->ioeventfds = g_realloc(mr->ioeventfds, |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 2110 | sizeof(*mr->ioeventfds)*mr->ioeventfd_nb + 1); |
Gonglei | 4dc5615 | 2014-05-08 11:47:32 +0800 | [diff] [blame] | 2111 | ioeventfd_update_pending |= mr->enabled; |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 2112 | memory_region_transaction_commit(); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 2113 | } |
| 2114 | |
Paolo Bonzini | feca4ac | 2014-06-11 11:18:09 +0200 | [diff] [blame] | 2115 | static void memory_region_update_container_subregions(MemoryRegion *subregion) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2116 | { |
Paolo Bonzini | feca4ac | 2014-06-11 11:18:09 +0200 | [diff] [blame] | 2117 | MemoryRegion *mr = subregion->container; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2118 | MemoryRegion *other; |
| 2119 | |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 2120 | memory_region_transaction_begin(); |
| 2121 | |
Paolo Bonzini | dfde4e6 | 2013-05-06 10:46:11 +0200 | [diff] [blame] | 2122 | memory_region_ref(subregion); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2123 | QTAILQ_FOREACH(other, &mr->subregions, subregions_link) { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2124 | if (subregion->priority >= other->priority) { |
| 2125 | QTAILQ_INSERT_BEFORE(other, subregion, subregions_link); |
| 2126 | goto done; |
| 2127 | } |
| 2128 | } |
| 2129 | QTAILQ_INSERT_TAIL(&mr->subregions, subregion, subregions_link); |
| 2130 | done: |
Jan Kiszka | 22bde71 | 2012-11-05 16:45:56 +0100 | [diff] [blame] | 2131 | memory_region_update_pending |= mr->enabled && subregion->enabled; |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 2132 | memory_region_transaction_commit(); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2133 | } |
| 2134 | |
Peter Crosthwaite | 0598701 | 2014-06-05 23:14:44 -0700 | [diff] [blame] | 2135 | static void memory_region_add_subregion_common(MemoryRegion *mr, |
| 2136 | hwaddr offset, |
| 2137 | MemoryRegion *subregion) |
| 2138 | { |
Paolo Bonzini | feca4ac | 2014-06-11 11:18:09 +0200 | [diff] [blame] | 2139 | assert(!subregion->container); |
| 2140 | subregion->container = mr; |
Peter Crosthwaite | 0598701 | 2014-06-05 23:14:44 -0700 | [diff] [blame] | 2141 | subregion->addr = offset; |
Paolo Bonzini | feca4ac | 2014-06-11 11:18:09 +0200 | [diff] [blame] | 2142 | memory_region_update_container_subregions(subregion); |
Peter Crosthwaite | 0598701 | 2014-06-05 23:14:44 -0700 | [diff] [blame] | 2143 | } |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2144 | |
| 2145 | void memory_region_add_subregion(MemoryRegion *mr, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2146 | hwaddr offset, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2147 | MemoryRegion *subregion) |
| 2148 | { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2149 | subregion->priority = 0; |
| 2150 | memory_region_add_subregion_common(mr, offset, subregion); |
| 2151 | } |
| 2152 | |
| 2153 | void memory_region_add_subregion_overlap(MemoryRegion *mr, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2154 | hwaddr offset, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2155 | MemoryRegion *subregion, |
Marcel Apfelbaum | a1ff8ae | 2013-09-16 11:21:14 +0300 | [diff] [blame] | 2156 | int priority) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2157 | { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2158 | subregion->priority = priority; |
| 2159 | memory_region_add_subregion_common(mr, offset, subregion); |
| 2160 | } |
| 2161 | |
| 2162 | void memory_region_del_subregion(MemoryRegion *mr, |
| 2163 | MemoryRegion *subregion) |
| 2164 | { |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 2165 | memory_region_transaction_begin(); |
Paolo Bonzini | feca4ac | 2014-06-11 11:18:09 +0200 | [diff] [blame] | 2166 | assert(subregion->container == mr); |
| 2167 | subregion->container = NULL; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2168 | QTAILQ_REMOVE(&mr->subregions, subregion, subregions_link); |
Paolo Bonzini | dfde4e6 | 2013-05-06 10:46:11 +0200 | [diff] [blame] | 2169 | memory_region_unref(subregion); |
Jan Kiszka | 22bde71 | 2012-11-05 16:45:56 +0100 | [diff] [blame] | 2170 | memory_region_update_pending |= mr->enabled && subregion->enabled; |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 2171 | memory_region_transaction_commit(); |
Avi Kivity | 6bba19b | 2011-09-14 11:54:58 +0300 | [diff] [blame] | 2172 | } |
| 2173 | |
| 2174 | void memory_region_set_enabled(MemoryRegion *mr, bool enabled) |
| 2175 | { |
| 2176 | if (enabled == mr->enabled) { |
| 2177 | return; |
| 2178 | } |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 2179 | memory_region_transaction_begin(); |
Avi Kivity | 6bba19b | 2011-09-14 11:54:58 +0300 | [diff] [blame] | 2180 | mr->enabled = enabled; |
Jan Kiszka | 22bde71 | 2012-11-05 16:45:56 +0100 | [diff] [blame] | 2181 | memory_region_update_pending = true; |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 2182 | memory_region_transaction_commit(); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2183 | } |
Avi Kivity | 1c0ffa5 | 2011-07-26 14:26:04 +0300 | [diff] [blame] | 2184 | |
Michael S. Tsirkin | e7af4c6 | 2014-12-16 11:21:23 +0200 | [diff] [blame] | 2185 | void memory_region_set_size(MemoryRegion *mr, uint64_t size) |
| 2186 | { |
| 2187 | Int128 s = int128_make64(size); |
| 2188 | |
| 2189 | if (size == UINT64_MAX) { |
| 2190 | s = int128_2_64(); |
| 2191 | } |
| 2192 | if (int128_eq(s, mr->size)) { |
| 2193 | return; |
| 2194 | } |
| 2195 | memory_region_transaction_begin(); |
| 2196 | mr->size = s; |
| 2197 | memory_region_update_pending = true; |
| 2198 | memory_region_transaction_commit(); |
| 2199 | } |
| 2200 | |
Peter Crosthwaite | 67891b8 | 2014-06-05 23:15:18 -0700 | [diff] [blame] | 2201 | static void memory_region_readd_subregion(MemoryRegion *mr) |
Avi Kivity | 2282e1a | 2011-09-14 12:10:12 +0300 | [diff] [blame] | 2202 | { |
Paolo Bonzini | feca4ac | 2014-06-11 11:18:09 +0200 | [diff] [blame] | 2203 | MemoryRegion *container = mr->container; |
Avi Kivity | 2282e1a | 2011-09-14 12:10:12 +0300 | [diff] [blame] | 2204 | |
Paolo Bonzini | feca4ac | 2014-06-11 11:18:09 +0200 | [diff] [blame] | 2205 | if (container) { |
Peter Crosthwaite | 67891b8 | 2014-06-05 23:15:18 -0700 | [diff] [blame] | 2206 | memory_region_transaction_begin(); |
| 2207 | memory_region_ref(mr); |
Paolo Bonzini | feca4ac | 2014-06-11 11:18:09 +0200 | [diff] [blame] | 2208 | memory_region_del_subregion(container, mr); |
| 2209 | mr->container = container; |
| 2210 | memory_region_update_container_subregions(mr); |
Peter Crosthwaite | 67891b8 | 2014-06-05 23:15:18 -0700 | [diff] [blame] | 2211 | memory_region_unref(mr); |
| 2212 | memory_region_transaction_commit(); |
Avi Kivity | 2282e1a | 2011-09-14 12:10:12 +0300 | [diff] [blame] | 2213 | } |
Peter Crosthwaite | 67891b8 | 2014-06-05 23:15:18 -0700 | [diff] [blame] | 2214 | } |
Avi Kivity | 2282e1a | 2011-09-14 12:10:12 +0300 | [diff] [blame] | 2215 | |
Peter Crosthwaite | 67891b8 | 2014-06-05 23:15:18 -0700 | [diff] [blame] | 2216 | void memory_region_set_address(MemoryRegion *mr, hwaddr addr) |
| 2217 | { |
| 2218 | if (addr != mr->addr) { |
| 2219 | mr->addr = addr; |
| 2220 | memory_region_readd_subregion(mr); |
| 2221 | } |
Avi Kivity | 2282e1a | 2011-09-14 12:10:12 +0300 | [diff] [blame] | 2222 | } |
| 2223 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2224 | void memory_region_set_alias_offset(MemoryRegion *mr, hwaddr offset) |
Avi Kivity | 4703359 | 2011-12-04 19:16:50 +0200 | [diff] [blame] | 2225 | { |
Avi Kivity | 4703359 | 2011-12-04 19:16:50 +0200 | [diff] [blame] | 2226 | assert(mr->alias); |
Avi Kivity | 4703359 | 2011-12-04 19:16:50 +0200 | [diff] [blame] | 2227 | |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 2228 | if (offset == mr->alias_offset) { |
Avi Kivity | 4703359 | 2011-12-04 19:16:50 +0200 | [diff] [blame] | 2229 | return; |
| 2230 | } |
| 2231 | |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 2232 | memory_region_transaction_begin(); |
| 2233 | mr->alias_offset = offset; |
Jan Kiszka | 22bde71 | 2012-11-05 16:45:56 +0100 | [diff] [blame] | 2234 | memory_region_update_pending |= mr->enabled; |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 2235 | memory_region_transaction_commit(); |
Avi Kivity | 4703359 | 2011-12-04 19:16:50 +0200 | [diff] [blame] | 2236 | } |
| 2237 | |
Igor Mammedov | a2b257d | 2014-10-31 16:38:37 +0000 | [diff] [blame] | 2238 | uint64_t memory_region_get_alignment(const MemoryRegion *mr) |
| 2239 | { |
| 2240 | return mr->align; |
| 2241 | } |
| 2242 | |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 2243 | static int cmp_flatrange_addr(const void *addr_, const void *fr_) |
| 2244 | { |
| 2245 | const AddrRange *addr = addr_; |
| 2246 | const FlatRange *fr = fr_; |
| 2247 | |
| 2248 | if (int128_le(addrrange_end(*addr), fr->addr.start)) { |
| 2249 | return -1; |
| 2250 | } else if (int128_ge(addr->start, addrrange_end(fr->addr))) { |
| 2251 | return 1; |
| 2252 | } |
| 2253 | return 0; |
| 2254 | } |
| 2255 | |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 2256 | static FlatRange *flatview_lookup(FlatView *view, AddrRange addr) |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 2257 | { |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 2258 | return bsearch(&addr, view->ranges, view->nr, |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 2259 | sizeof(FlatRange), cmp_flatrange_addr); |
| 2260 | } |
| 2261 | |
Igor Mammedov | eed2bac | 2014-06-02 15:25:06 +0200 | [diff] [blame] | 2262 | bool memory_region_is_mapped(MemoryRegion *mr) |
| 2263 | { |
| 2264 | return mr->container ? true : false; |
| 2265 | } |
| 2266 | |
Paolo Bonzini | c6742b1 | 2015-07-14 13:45:34 +0200 | [diff] [blame] | 2267 | /* Same as memory_region_find, but it does not add a reference to the |
| 2268 | * returned region. It must be called from an RCU critical section. |
| 2269 | */ |
| 2270 | static MemoryRegionSection memory_region_find_rcu(MemoryRegion *mr, |
| 2271 | hwaddr addr, uint64_t size) |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 2272 | { |
Paolo Bonzini | 052e87b | 2013-05-27 10:08:27 +0200 | [diff] [blame] | 2273 | MemoryRegionSection ret = { .mr = NULL }; |
Paolo Bonzini | 73034e9 | 2013-05-07 15:48:28 +0200 | [diff] [blame] | 2274 | MemoryRegion *root; |
| 2275 | AddressSpace *as; |
| 2276 | AddrRange range; |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 2277 | FlatView *view; |
Paolo Bonzini | 73034e9 | 2013-05-07 15:48:28 +0200 | [diff] [blame] | 2278 | FlatRange *fr; |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 2279 | |
Paolo Bonzini | 73034e9 | 2013-05-07 15:48:28 +0200 | [diff] [blame] | 2280 | addr += mr->addr; |
Paolo Bonzini | feca4ac | 2014-06-11 11:18:09 +0200 | [diff] [blame] | 2281 | for (root = mr; root->container; ) { |
| 2282 | root = root->container; |
Paolo Bonzini | 73034e9 | 2013-05-07 15:48:28 +0200 | [diff] [blame] | 2283 | addr += root->addr; |
| 2284 | } |
| 2285 | |
| 2286 | as = memory_region_to_address_space(root); |
Igor Mammedov | eed2bac | 2014-06-02 15:25:06 +0200 | [diff] [blame] | 2287 | if (!as) { |
| 2288 | return ret; |
| 2289 | } |
Paolo Bonzini | 73034e9 | 2013-05-07 15:48:28 +0200 | [diff] [blame] | 2290 | range = addrrange_make(int128_make64(addr), int128_make64(size)); |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 2291 | |
Paolo Bonzini | 2b64766 | 2013-05-17 12:40:44 +0200 | [diff] [blame] | 2292 | view = atomic_rcu_read(&as->current_map); |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 2293 | fr = flatview_lookup(view, range); |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 2294 | if (!fr) { |
Paolo Bonzini | c6742b1 | 2015-07-14 13:45:34 +0200 | [diff] [blame] | 2295 | return ret; |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 2296 | } |
| 2297 | |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 2298 | while (fr > view->ranges && addrrange_intersects(fr[-1].addr, range)) { |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 2299 | --fr; |
| 2300 | } |
| 2301 | |
| 2302 | ret.mr = fr->mr; |
Paolo Bonzini | 73034e9 | 2013-05-07 15:48:28 +0200 | [diff] [blame] | 2303 | ret.address_space = as; |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 2304 | range = addrrange_intersection(range, fr->addr); |
| 2305 | ret.offset_within_region = fr->offset_in_region; |
| 2306 | ret.offset_within_region += int128_get64(int128_sub(range.start, |
| 2307 | fr->addr.start)); |
Paolo Bonzini | 052e87b | 2013-05-27 10:08:27 +0200 | [diff] [blame] | 2308 | ret.size = range.size; |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 2309 | ret.offset_within_address_space = int128_get64(range.start); |
Avi Kivity | 7a8499e | 2012-02-08 17:01:23 +0200 | [diff] [blame] | 2310 | ret.readonly = fr->readonly; |
Paolo Bonzini | c6742b1 | 2015-07-14 13:45:34 +0200 | [diff] [blame] | 2311 | return ret; |
| 2312 | } |
| 2313 | |
| 2314 | MemoryRegionSection memory_region_find(MemoryRegion *mr, |
| 2315 | hwaddr addr, uint64_t size) |
| 2316 | { |
| 2317 | MemoryRegionSection ret; |
| 2318 | rcu_read_lock(); |
| 2319 | ret = memory_region_find_rcu(mr, addr, size); |
| 2320 | if (ret.mr) { |
| 2321 | memory_region_ref(ret.mr); |
| 2322 | } |
Paolo Bonzini | 2b64766 | 2013-05-17 12:40:44 +0200 | [diff] [blame] | 2323 | rcu_read_unlock(); |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 2324 | return ret; |
| 2325 | } |
| 2326 | |
Paolo Bonzini | c6742b1 | 2015-07-14 13:45:34 +0200 | [diff] [blame] | 2327 | bool memory_region_present(MemoryRegion *container, hwaddr addr) |
| 2328 | { |
| 2329 | MemoryRegion *mr; |
| 2330 | |
| 2331 | rcu_read_lock(); |
| 2332 | mr = memory_region_find_rcu(container, addr, 1).mr; |
| 2333 | rcu_read_unlock(); |
| 2334 | return mr && mr != container; |
| 2335 | } |
| 2336 | |
Paolo Bonzini | 9c1f8f4 | 2016-09-22 16:08:31 +0200 | [diff] [blame] | 2337 | void memory_global_dirty_log_sync(void) |
Avi Kivity | 86e775c | 2011-12-15 16:24:49 +0200 | [diff] [blame] | 2338 | { |
Paolo Bonzini | 9c1f8f4 | 2016-09-22 16:08:31 +0200 | [diff] [blame] | 2339 | MemoryListener *listener; |
| 2340 | AddressSpace *as; |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 2341 | FlatView *view; |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 2342 | FlatRange *fr; |
| 2343 | |
Paolo Bonzini | 9c1f8f4 | 2016-09-22 16:08:31 +0200 | [diff] [blame] | 2344 | QTAILQ_FOREACH(listener, &memory_listeners, link) { |
| 2345 | if (!listener->log_sync) { |
| 2346 | continue; |
| 2347 | } |
Paolo Bonzini | d45fa78 | 2016-09-22 16:11:54 +0200 | [diff] [blame] | 2348 | as = listener->address_space; |
Paolo Bonzini | 9c1f8f4 | 2016-09-22 16:08:31 +0200 | [diff] [blame] | 2349 | view = address_space_get_flatview(as); |
| 2350 | FOR_EACH_FLAT_RANGE(fr, view) { |
Paolo Bonzini | adaad61 | 2016-09-22 16:09:08 +0200 | [diff] [blame] | 2351 | if (fr->dirty_log_mask) { |
| 2352 | MemoryRegionSection mrs = section_from_flat_range(fr, as); |
| 2353 | listener->log_sync(listener, &mrs); |
| 2354 | } |
Paolo Bonzini | 9c1f8f4 | 2016-09-22 16:08:31 +0200 | [diff] [blame] | 2355 | } |
| 2356 | flatview_unref(view); |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 2357 | } |
| 2358 | } |
| 2359 | |
Jay Zhou | 1931076 | 2017-07-28 18:28:53 +0800 | [diff] [blame] | 2360 | static VMChangeStateEntry *vmstate_change; |
| 2361 | |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 2362 | void memory_global_dirty_log_start(void) |
| 2363 | { |
Jay Zhou | 1931076 | 2017-07-28 18:28:53 +0800 | [diff] [blame] | 2364 | if (vmstate_change) { |
| 2365 | qemu_del_vm_change_state_handler(vmstate_change); |
| 2366 | vmstate_change = NULL; |
| 2367 | } |
| 2368 | |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 2369 | global_dirty_log = true; |
Paolo Bonzini | 6f6a5ef | 2015-03-23 10:57:21 +0100 | [diff] [blame] | 2370 | |
Avi Kivity | 7376e58 | 2012-02-08 21:05:17 +0200 | [diff] [blame] | 2371 | MEMORY_LISTENER_CALL_GLOBAL(log_global_start, Forward); |
Paolo Bonzini | 6f6a5ef | 2015-03-23 10:57:21 +0100 | [diff] [blame] | 2372 | |
| 2373 | /* Refresh DIRTY_LOG_MIGRATION bit. */ |
| 2374 | memory_region_transaction_begin(); |
| 2375 | memory_region_update_pending = true; |
| 2376 | memory_region_transaction_commit(); |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 2377 | } |
| 2378 | |
Jay Zhou | 1931076 | 2017-07-28 18:28:53 +0800 | [diff] [blame] | 2379 | static void memory_global_dirty_log_do_stop(void) |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 2380 | { |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 2381 | global_dirty_log = false; |
Paolo Bonzini | 6f6a5ef | 2015-03-23 10:57:21 +0100 | [diff] [blame] | 2382 | |
| 2383 | /* Refresh DIRTY_LOG_MIGRATION bit. */ |
| 2384 | memory_region_transaction_begin(); |
| 2385 | memory_region_update_pending = true; |
| 2386 | memory_region_transaction_commit(); |
| 2387 | |
Avi Kivity | 7376e58 | 2012-02-08 21:05:17 +0200 | [diff] [blame] | 2388 | MEMORY_LISTENER_CALL_GLOBAL(log_global_stop, Reverse); |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 2389 | } |
| 2390 | |
Jay Zhou | 1931076 | 2017-07-28 18:28:53 +0800 | [diff] [blame] | 2391 | static void memory_vm_change_state_handler(void *opaque, int running, |
| 2392 | RunState state) |
| 2393 | { |
| 2394 | if (running) { |
| 2395 | memory_global_dirty_log_do_stop(); |
| 2396 | |
| 2397 | if (vmstate_change) { |
| 2398 | qemu_del_vm_change_state_handler(vmstate_change); |
| 2399 | vmstate_change = NULL; |
| 2400 | } |
| 2401 | } |
| 2402 | } |
| 2403 | |
| 2404 | void memory_global_dirty_log_stop(void) |
| 2405 | { |
| 2406 | if (!runstate_is_running()) { |
| 2407 | if (vmstate_change) { |
| 2408 | return; |
| 2409 | } |
| 2410 | vmstate_change = qemu_add_vm_change_state_handler( |
| 2411 | memory_vm_change_state_handler, NULL); |
| 2412 | return; |
| 2413 | } |
| 2414 | |
| 2415 | memory_global_dirty_log_do_stop(); |
| 2416 | } |
| 2417 | |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 2418 | static void listener_add_address_space(MemoryListener *listener, |
| 2419 | AddressSpace *as) |
| 2420 | { |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 2421 | FlatView *view; |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 2422 | FlatRange *fr; |
| 2423 | |
Paolo Bonzini | 680a478 | 2015-11-02 09:23:52 +0100 | [diff] [blame] | 2424 | if (listener->begin) { |
| 2425 | listener->begin(listener); |
| 2426 | } |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 2427 | if (global_dirty_log) { |
Avi Kivity | 975aefe | 2012-10-02 16:39:57 +0200 | [diff] [blame] | 2428 | if (listener->log_global_start) { |
| 2429 | listener->log_global_start(listener); |
| 2430 | } |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 2431 | } |
Avi Kivity | 975aefe | 2012-10-02 16:39:57 +0200 | [diff] [blame] | 2432 | |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 2433 | view = address_space_get_flatview(as); |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 2434 | FOR_EACH_FLAT_RANGE(fr, view) { |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 2435 | MemoryRegionSection section = { |
| 2436 | .mr = fr->mr, |
Avi Kivity | f6790af | 2012-10-02 20:13:51 +0200 | [diff] [blame] | 2437 | .address_space = as, |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 2438 | .offset_within_region = fr->offset_in_region, |
Paolo Bonzini | 052e87b | 2013-05-27 10:08:27 +0200 | [diff] [blame] | 2439 | .size = fr->addr.size, |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 2440 | .offset_within_address_space = int128_get64(fr->addr.start), |
Avi Kivity | 7a8499e | 2012-02-08 17:01:23 +0200 | [diff] [blame] | 2441 | .readonly = fr->readonly, |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 2442 | }; |
Paolo Bonzini | 680a478 | 2015-11-02 09:23:52 +0100 | [diff] [blame] | 2443 | if (fr->dirty_log_mask && listener->log_start) { |
| 2444 | listener->log_start(listener, §ion, 0, fr->dirty_log_mask); |
| 2445 | } |
Avi Kivity | 975aefe | 2012-10-02 16:39:57 +0200 | [diff] [blame] | 2446 | if (listener->region_add) { |
| 2447 | listener->region_add(listener, §ion); |
| 2448 | } |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 2449 | } |
Paolo Bonzini | 680a478 | 2015-11-02 09:23:52 +0100 | [diff] [blame] | 2450 | if (listener->commit) { |
| 2451 | listener->commit(listener); |
| 2452 | } |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 2453 | flatview_unref(view); |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 2454 | } |
| 2455 | |
Paolo Bonzini | d45fa78 | 2016-09-22 16:11:54 +0200 | [diff] [blame] | 2456 | void memory_listener_register(MemoryListener *listener, AddressSpace *as) |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 2457 | { |
Avi Kivity | 72e22d2 | 2012-02-08 15:05:50 +0200 | [diff] [blame] | 2458 | MemoryListener *other = NULL; |
| 2459 | |
Paolo Bonzini | d45fa78 | 2016-09-22 16:11:54 +0200 | [diff] [blame] | 2460 | listener->address_space = as; |
Avi Kivity | 72e22d2 | 2012-02-08 15:05:50 +0200 | [diff] [blame] | 2461 | if (QTAILQ_EMPTY(&memory_listeners) |
| 2462 | || listener->priority >= QTAILQ_LAST(&memory_listeners, |
| 2463 | memory_listeners)->priority) { |
| 2464 | QTAILQ_INSERT_TAIL(&memory_listeners, listener, link); |
| 2465 | } else { |
| 2466 | QTAILQ_FOREACH(other, &memory_listeners, link) { |
| 2467 | if (listener->priority < other->priority) { |
| 2468 | break; |
| 2469 | } |
| 2470 | } |
| 2471 | QTAILQ_INSERT_BEFORE(other, listener, link); |
| 2472 | } |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 2473 | |
Paolo Bonzini | 9a54635 | 2016-09-22 16:23:06 +0200 | [diff] [blame] | 2474 | if (QTAILQ_EMPTY(&as->listeners) |
| 2475 | || listener->priority >= QTAILQ_LAST(&as->listeners, |
| 2476 | memory_listeners)->priority) { |
| 2477 | QTAILQ_INSERT_TAIL(&as->listeners, listener, link_as); |
| 2478 | } else { |
| 2479 | QTAILQ_FOREACH(other, &as->listeners, link_as) { |
| 2480 | if (listener->priority < other->priority) { |
| 2481 | break; |
| 2482 | } |
| 2483 | } |
| 2484 | QTAILQ_INSERT_BEFORE(other, listener, link_as); |
| 2485 | } |
| 2486 | |
Paolo Bonzini | d45fa78 | 2016-09-22 16:11:54 +0200 | [diff] [blame] | 2487 | listener_add_address_space(listener, as); |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 2488 | } |
| 2489 | |
| 2490 | void memory_listener_unregister(MemoryListener *listener) |
| 2491 | { |
Paolo Bonzini | 1d8280c | 2017-01-27 16:40:12 +0100 | [diff] [blame] | 2492 | if (!listener->address_space) { |
| 2493 | return; |
| 2494 | } |
| 2495 | |
Avi Kivity | 72e22d2 | 2012-02-08 15:05:50 +0200 | [diff] [blame] | 2496 | QTAILQ_REMOVE(&memory_listeners, listener, link); |
Paolo Bonzini | 9a54635 | 2016-09-22 16:23:06 +0200 | [diff] [blame] | 2497 | QTAILQ_REMOVE(&listener->address_space->listeners, listener, link_as); |
Paolo Bonzini | 1d8280c | 2017-01-27 16:40:12 +0100 | [diff] [blame] | 2498 | listener->address_space = NULL; |
Avi Kivity | 86e775c | 2011-12-15 16:24:49 +0200 | [diff] [blame] | 2499 | } |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 2500 | |
KONRAD Frederic | c935674 | 2016-10-19 15:06:49 +0200 | [diff] [blame] | 2501 | bool memory_region_request_mmio_ptr(MemoryRegion *mr, hwaddr addr) |
| 2502 | { |
| 2503 | void *host; |
| 2504 | unsigned size = 0; |
| 2505 | unsigned offset = 0; |
| 2506 | Object *new_interface; |
| 2507 | |
| 2508 | if (!mr || !mr->ops->request_ptr) { |
| 2509 | return false; |
| 2510 | } |
| 2511 | |
| 2512 | /* |
| 2513 | * Avoid an update if the request_ptr call |
| 2514 | * memory_region_invalidate_mmio_ptr which seems to be likely when we use |
| 2515 | * a cache. |
| 2516 | */ |
| 2517 | memory_region_transaction_begin(); |
| 2518 | |
| 2519 | host = mr->ops->request_ptr(mr->opaque, addr - mr->addr, &size, &offset); |
| 2520 | |
| 2521 | if (!host || !size) { |
| 2522 | memory_region_transaction_commit(); |
| 2523 | return false; |
| 2524 | } |
| 2525 | |
| 2526 | new_interface = object_new("mmio_interface"); |
| 2527 | qdev_prop_set_uint64(DEVICE(new_interface), "start", offset); |
| 2528 | qdev_prop_set_uint64(DEVICE(new_interface), "end", offset + size - 1); |
| 2529 | qdev_prop_set_bit(DEVICE(new_interface), "ro", true); |
| 2530 | qdev_prop_set_ptr(DEVICE(new_interface), "host_ptr", host); |
| 2531 | qdev_prop_set_ptr(DEVICE(new_interface), "subregion", mr); |
| 2532 | object_property_set_bool(OBJECT(new_interface), true, "realized", NULL); |
| 2533 | |
| 2534 | memory_region_transaction_commit(); |
| 2535 | return true; |
| 2536 | } |
| 2537 | |
| 2538 | typedef struct MMIOPtrInvalidate { |
| 2539 | MemoryRegion *mr; |
| 2540 | hwaddr offset; |
| 2541 | unsigned size; |
| 2542 | int busy; |
| 2543 | int allocated; |
| 2544 | } MMIOPtrInvalidate; |
| 2545 | |
| 2546 | #define MAX_MMIO_INVALIDATE 10 |
| 2547 | static MMIOPtrInvalidate mmio_ptr_invalidate_list[MAX_MMIO_INVALIDATE]; |
| 2548 | |
| 2549 | static void memory_region_do_invalidate_mmio_ptr(CPUState *cpu, |
| 2550 | run_on_cpu_data data) |
| 2551 | { |
| 2552 | MMIOPtrInvalidate *invalidate_data = (MMIOPtrInvalidate *)data.host_ptr; |
| 2553 | MemoryRegion *mr = invalidate_data->mr; |
| 2554 | hwaddr offset = invalidate_data->offset; |
| 2555 | unsigned size = invalidate_data->size; |
| 2556 | MemoryRegionSection section = memory_region_find(mr, offset, size); |
| 2557 | |
| 2558 | qemu_mutex_lock_iothread(); |
| 2559 | |
| 2560 | /* Reset dirty so this doesn't happen later. */ |
| 2561 | cpu_physical_memory_test_and_clear_dirty(offset, size, 1); |
| 2562 | |
| 2563 | if (section.mr != mr) { |
| 2564 | /* memory_region_find add a ref on section.mr */ |
| 2565 | memory_region_unref(section.mr); |
| 2566 | if (MMIO_INTERFACE(section.mr->owner)) { |
| 2567 | /* We found the interface just drop it. */ |
| 2568 | object_property_set_bool(section.mr->owner, false, "realized", |
| 2569 | NULL); |
| 2570 | object_unref(section.mr->owner); |
| 2571 | object_unparent(section.mr->owner); |
| 2572 | } |
| 2573 | } |
| 2574 | |
| 2575 | qemu_mutex_unlock_iothread(); |
| 2576 | |
| 2577 | if (invalidate_data->allocated) { |
| 2578 | g_free(invalidate_data); |
| 2579 | } else { |
| 2580 | invalidate_data->busy = 0; |
| 2581 | } |
| 2582 | } |
| 2583 | |
| 2584 | void memory_region_invalidate_mmio_ptr(MemoryRegion *mr, hwaddr offset, |
| 2585 | unsigned size) |
| 2586 | { |
| 2587 | size_t i; |
| 2588 | MMIOPtrInvalidate *invalidate_data = NULL; |
| 2589 | |
| 2590 | for (i = 0; i < MAX_MMIO_INVALIDATE; i++) { |
| 2591 | if (atomic_cmpxchg(&(mmio_ptr_invalidate_list[i].busy), 0, 1) == 0) { |
| 2592 | invalidate_data = &mmio_ptr_invalidate_list[i]; |
| 2593 | break; |
| 2594 | } |
| 2595 | } |
| 2596 | |
| 2597 | if (!invalidate_data) { |
| 2598 | invalidate_data = g_malloc0(sizeof(MMIOPtrInvalidate)); |
| 2599 | invalidate_data->allocated = 1; |
| 2600 | } |
| 2601 | |
| 2602 | invalidate_data->mr = mr; |
| 2603 | invalidate_data->offset = offset; |
| 2604 | invalidate_data->size = size; |
| 2605 | |
| 2606 | async_safe_run_on_cpu(first_cpu, memory_region_do_invalidate_mmio_ptr, |
| 2607 | RUN_ON_CPU_HOST_PTR(invalidate_data)); |
| 2608 | } |
| 2609 | |
Alexey Kardashevskiy | 7dca804 | 2013-04-29 16:25:51 +0000 | [diff] [blame] | 2610 | void address_space_init(AddressSpace *as, MemoryRegion *root, const char *name) |
Avi Kivity | 1c0ffa5 | 2011-07-26 14:26:04 +0300 | [diff] [blame] | 2611 | { |
Paolo Bonzini | ac95190 | 2015-02-11 15:21:04 +0100 | [diff] [blame] | 2612 | memory_region_ref(root); |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 2613 | memory_region_transaction_begin(); |
Peter Crosthwaite | f0c02d1 | 2016-01-21 14:15:06 +0000 | [diff] [blame] | 2614 | as->ref_count = 1; |
Avi Kivity | 8786db7 | 2012-10-02 13:53:41 +0200 | [diff] [blame] | 2615 | as->root = root; |
Peter Crosthwaite | f0c02d1 | 2016-01-21 14:15:06 +0000 | [diff] [blame] | 2616 | as->malloced = false; |
Avi Kivity | 8786db7 | 2012-10-02 13:53:41 +0200 | [diff] [blame] | 2617 | as->current_map = g_new(FlatView, 1); |
| 2618 | flatview_init(as->current_map); |
Avi Kivity | 4c19eb7 | 2012-10-30 13:47:44 +0200 | [diff] [blame] | 2619 | as->ioeventfd_nb = 0; |
| 2620 | as->ioeventfds = NULL; |
Paolo Bonzini | 9a54635 | 2016-09-22 16:23:06 +0200 | [diff] [blame] | 2621 | QTAILQ_INIT(&as->listeners); |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 2622 | QTAILQ_INSERT_TAIL(&address_spaces, as, address_spaces_link); |
Alexey Kardashevskiy | 7dca804 | 2013-04-29 16:25:51 +0000 | [diff] [blame] | 2623 | as->name = g_strdup(name ? name : "anonymous"); |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 2624 | address_space_init_dispatch(as); |
Paolo Bonzini | f43793c | 2013-04-16 15:39:51 +0200 | [diff] [blame] | 2625 | memory_region_update_pending |= root->enabled; |
| 2626 | memory_region_transaction_commit(); |
Avi Kivity | 1c0ffa5 | 2011-07-26 14:26:04 +0300 | [diff] [blame] | 2627 | } |
Avi Kivity | 658b222 | 2011-07-26 14:26:08 +0300 | [diff] [blame] | 2628 | |
Paolo Bonzini | 374f298 | 2013-05-17 12:37:03 +0200 | [diff] [blame] | 2629 | static void do_address_space_destroy(AddressSpace *as) |
Avi Kivity | 83f3c25 | 2012-10-07 12:59:55 +0200 | [diff] [blame] | 2630 | { |
Peter Crosthwaite | f0c02d1 | 2016-01-21 14:15:06 +0000 | [diff] [blame] | 2631 | bool do_free = as->malloced; |
David Gibson | 078c44f | 2014-05-30 12:59:00 -0600 | [diff] [blame] | 2632 | |
Avi Kivity | 83f3c25 | 2012-10-07 12:59:55 +0200 | [diff] [blame] | 2633 | address_space_destroy_dispatch(as); |
Paolo Bonzini | 9a54635 | 2016-09-22 16:23:06 +0200 | [diff] [blame] | 2634 | assert(QTAILQ_EMPTY(&as->listeners)); |
David Gibson | 078c44f | 2014-05-30 12:59:00 -0600 | [diff] [blame] | 2635 | |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 2636 | flatview_unref(as->current_map); |
Alexey Kardashevskiy | 7dca804 | 2013-04-29 16:25:51 +0000 | [diff] [blame] | 2637 | g_free(as->name); |
Avi Kivity | 4c19eb7 | 2012-10-30 13:47:44 +0200 | [diff] [blame] | 2638 | g_free(as->ioeventfds); |
Paolo Bonzini | ac95190 | 2015-02-11 15:21:04 +0100 | [diff] [blame] | 2639 | memory_region_unref(as->root); |
Peter Crosthwaite | f0c02d1 | 2016-01-21 14:15:06 +0000 | [diff] [blame] | 2640 | if (do_free) { |
| 2641 | g_free(as); |
| 2642 | } |
| 2643 | } |
| 2644 | |
| 2645 | AddressSpace *address_space_init_shareable(MemoryRegion *root, const char *name) |
| 2646 | { |
| 2647 | AddressSpace *as; |
| 2648 | |
| 2649 | QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) { |
| 2650 | if (root == as->root && as->malloced) { |
| 2651 | as->ref_count++; |
| 2652 | return as; |
| 2653 | } |
| 2654 | } |
| 2655 | |
| 2656 | as = g_malloc0(sizeof *as); |
| 2657 | address_space_init(as, root, name); |
| 2658 | as->malloced = true; |
| 2659 | return as; |
Avi Kivity | 83f3c25 | 2012-10-07 12:59:55 +0200 | [diff] [blame] | 2660 | } |
| 2661 | |
Paolo Bonzini | 374f298 | 2013-05-17 12:37:03 +0200 | [diff] [blame] | 2662 | void address_space_destroy(AddressSpace *as) |
| 2663 | { |
Paolo Bonzini | ac95190 | 2015-02-11 15:21:04 +0100 | [diff] [blame] | 2664 | MemoryRegion *root = as->root; |
| 2665 | |
Peter Crosthwaite | f0c02d1 | 2016-01-21 14:15:06 +0000 | [diff] [blame] | 2666 | as->ref_count--; |
| 2667 | if (as->ref_count) { |
| 2668 | return; |
| 2669 | } |
Paolo Bonzini | 374f298 | 2013-05-17 12:37:03 +0200 | [diff] [blame] | 2670 | /* Flush out anything from MemoryListeners listening in on this */ |
| 2671 | memory_region_transaction_begin(); |
| 2672 | as->root = NULL; |
| 2673 | memory_region_transaction_commit(); |
| 2674 | QTAILQ_REMOVE(&address_spaces, as, address_spaces_link); |
Paolo Bonzini | 6e48e8f | 2015-02-10 10:25:44 -0700 | [diff] [blame] | 2675 | address_space_unregister(as); |
Paolo Bonzini | 374f298 | 2013-05-17 12:37:03 +0200 | [diff] [blame] | 2676 | |
| 2677 | /* At this point, as->dispatch and as->current_map are dummy |
| 2678 | * entries that the guest should never use. Wait for the old |
| 2679 | * values to expire before freeing the data. |
| 2680 | */ |
Paolo Bonzini | ac95190 | 2015-02-11 15:21:04 +0100 | [diff] [blame] | 2681 | as->root = root; |
Paolo Bonzini | 374f298 | 2013-05-17 12:37:03 +0200 | [diff] [blame] | 2682 | call_rcu(as, do_address_space_destroy, rcu); |
| 2683 | } |
| 2684 | |
Peter Xu | 4e83190 | 2017-01-16 16:40:04 +0800 | [diff] [blame] | 2685 | static const char *memory_region_type(MemoryRegion *mr) |
| 2686 | { |
| 2687 | if (memory_region_is_ram_device(mr)) { |
| 2688 | return "ramd"; |
| 2689 | } else if (memory_region_is_romd(mr)) { |
| 2690 | return "romd"; |
| 2691 | } else if (memory_region_is_rom(mr)) { |
| 2692 | return "rom"; |
| 2693 | } else if (memory_region_is_ram(mr)) { |
| 2694 | return "ram"; |
| 2695 | } else { |
| 2696 | return "i/o"; |
| 2697 | } |
| 2698 | } |
| 2699 | |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2700 | typedef struct MemoryRegionList MemoryRegionList; |
| 2701 | |
| 2702 | struct MemoryRegionList { |
| 2703 | const MemoryRegion *mr; |
Kamil Rytarowski | a16878d | 2017-09-03 18:33:04 +0200 | [diff] [blame^] | 2704 | QTAILQ_ENTRY(MemoryRegionList) mrqueue; |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2705 | }; |
| 2706 | |
Kamil Rytarowski | a16878d | 2017-09-03 18:33:04 +0200 | [diff] [blame^] | 2707 | typedef QTAILQ_HEAD(mrqueue, MemoryRegionList) MemoryRegionListHead; |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2708 | |
Peter Xu | 4e83190 | 2017-01-16 16:40:04 +0800 | [diff] [blame] | 2709 | #define MR_SIZE(size) (int128_nz(size) ? (hwaddr)int128_get64( \ |
| 2710 | int128_sub((size), int128_one())) : 0) |
| 2711 | #define MTREE_INDENT " " |
| 2712 | |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2713 | static void mtree_print_mr(fprintf_function mon_printf, void *f, |
| 2714 | const MemoryRegion *mr, unsigned int level, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2715 | hwaddr base, |
Jan Kiszka | 9479c57 | 2011-09-27 15:00:41 +0200 | [diff] [blame] | 2716 | MemoryRegionListHead *alias_print_queue) |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2717 | { |
Jan Kiszka | 9479c57 | 2011-09-27 15:00:41 +0200 | [diff] [blame] | 2718 | MemoryRegionList *new_ml, *ml, *next_ml; |
| 2719 | MemoryRegionListHead submr_print_queue; |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2720 | const MemoryRegion *submr; |
| 2721 | unsigned int i; |
Peter Xu | b31f841 | 2017-03-14 20:56:27 +0800 | [diff] [blame] | 2722 | hwaddr cur_start, cur_end; |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2723 | |
Gerd Hoffmann | f8a9f72 | 2015-04-08 12:57:11 +0200 | [diff] [blame] | 2724 | if (!mr) { |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2725 | return; |
| 2726 | } |
| 2727 | |
| 2728 | for (i = 0; i < level; i++) { |
Peter Xu | 4e83190 | 2017-01-16 16:40:04 +0800 | [diff] [blame] | 2729 | mon_printf(f, MTREE_INDENT); |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2730 | } |
| 2731 | |
Peter Xu | b31f841 | 2017-03-14 20:56:27 +0800 | [diff] [blame] | 2732 | cur_start = base + mr->addr; |
| 2733 | cur_end = cur_start + MR_SIZE(mr->size); |
| 2734 | |
| 2735 | /* |
| 2736 | * Try to detect overflow of memory region. This should never |
| 2737 | * happen normally. When it happens, we dump something to warn the |
| 2738 | * user who is observing this. |
| 2739 | */ |
| 2740 | if (cur_start < base || cur_end < cur_start) { |
| 2741 | mon_printf(f, "[DETECTED OVERFLOW!] "); |
| 2742 | } |
| 2743 | |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2744 | if (mr->alias) { |
| 2745 | MemoryRegionList *ml; |
| 2746 | bool found = false; |
| 2747 | |
| 2748 | /* check if the alias is already in the queue */ |
Kamil Rytarowski | a16878d | 2017-09-03 18:33:04 +0200 | [diff] [blame^] | 2749 | QTAILQ_FOREACH(ml, alias_print_queue, mrqueue) { |
Paolo Bonzini | f54bb15 | 2013-12-11 12:51:46 +0100 | [diff] [blame] | 2750 | if (ml->mr == mr->alias) { |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2751 | found = true; |
| 2752 | } |
| 2753 | } |
| 2754 | |
| 2755 | if (!found) { |
| 2756 | ml = g_new(MemoryRegionList, 1); |
| 2757 | ml->mr = mr->alias; |
Kamil Rytarowski | a16878d | 2017-09-03 18:33:04 +0200 | [diff] [blame^] | 2758 | QTAILQ_INSERT_TAIL(alias_print_queue, ml, mrqueue); |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2759 | } |
Jan Kiszka | 4896d74 | 2012-02-04 16:25:42 +0100 | [diff] [blame] | 2760 | mon_printf(f, TARGET_FMT_plx "-" TARGET_FMT_plx |
Peter Xu | 4e83190 | 2017-01-16 16:40:04 +0800 | [diff] [blame] | 2761 | " (prio %d, %s): alias %s @%s " TARGET_FMT_plx |
Gerd Hoffmann | f8a9f72 | 2015-04-08 12:57:11 +0200 | [diff] [blame] | 2762 | "-" TARGET_FMT_plx "%s\n", |
Peter Xu | b31f841 | 2017-03-14 20:56:27 +0800 | [diff] [blame] | 2763 | cur_start, cur_end, |
Jan Kiszka | 4b474ba | 2011-09-27 15:00:31 +0200 | [diff] [blame] | 2764 | mr->priority, |
Peter Xu | 4e83190 | 2017-01-16 16:40:04 +0800 | [diff] [blame] | 2765 | memory_region_type((MemoryRegion *)mr), |
Peter Crosthwaite | 3fb18b4 | 2014-08-14 23:55:36 -0700 | [diff] [blame] | 2766 | memory_region_name(mr), |
| 2767 | memory_region_name(mr->alias), |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2768 | mr->alias_offset, |
Peter Xu | 4e83190 | 2017-01-16 16:40:04 +0800 | [diff] [blame] | 2769 | mr->alias_offset + MR_SIZE(mr->size), |
Gerd Hoffmann | f8a9f72 | 2015-04-08 12:57:11 +0200 | [diff] [blame] | 2770 | mr->enabled ? "" : " [disabled]"); |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2771 | } else { |
Jan Kiszka | 4896d74 | 2012-02-04 16:25:42 +0100 | [diff] [blame] | 2772 | mon_printf(f, |
Peter Xu | 4e83190 | 2017-01-16 16:40:04 +0800 | [diff] [blame] | 2773 | TARGET_FMT_plx "-" TARGET_FMT_plx " (prio %d, %s): %s%s\n", |
Peter Xu | b31f841 | 2017-03-14 20:56:27 +0800 | [diff] [blame] | 2774 | cur_start, cur_end, |
Jan Kiszka | 4b474ba | 2011-09-27 15:00:31 +0200 | [diff] [blame] | 2775 | mr->priority, |
Peter Xu | 4e83190 | 2017-01-16 16:40:04 +0800 | [diff] [blame] | 2776 | memory_region_type((MemoryRegion *)mr), |
Gerd Hoffmann | f8a9f72 | 2015-04-08 12:57:11 +0200 | [diff] [blame] | 2777 | memory_region_name(mr), |
| 2778 | mr->enabled ? "" : " [disabled]"); |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2779 | } |
Jan Kiszka | 9479c57 | 2011-09-27 15:00:41 +0200 | [diff] [blame] | 2780 | |
| 2781 | QTAILQ_INIT(&submr_print_queue); |
| 2782 | |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2783 | QTAILQ_FOREACH(submr, &mr->subregions, subregions_link) { |
Jan Kiszka | 9479c57 | 2011-09-27 15:00:41 +0200 | [diff] [blame] | 2784 | new_ml = g_new(MemoryRegionList, 1); |
| 2785 | new_ml->mr = submr; |
Kamil Rytarowski | a16878d | 2017-09-03 18:33:04 +0200 | [diff] [blame^] | 2786 | QTAILQ_FOREACH(ml, &submr_print_queue, mrqueue) { |
Jan Kiszka | 9479c57 | 2011-09-27 15:00:41 +0200 | [diff] [blame] | 2787 | if (new_ml->mr->addr < ml->mr->addr || |
| 2788 | (new_ml->mr->addr == ml->mr->addr && |
| 2789 | new_ml->mr->priority > ml->mr->priority)) { |
Kamil Rytarowski | a16878d | 2017-09-03 18:33:04 +0200 | [diff] [blame^] | 2790 | QTAILQ_INSERT_BEFORE(ml, new_ml, mrqueue); |
Jan Kiszka | 9479c57 | 2011-09-27 15:00:41 +0200 | [diff] [blame] | 2791 | new_ml = NULL; |
| 2792 | break; |
| 2793 | } |
| 2794 | } |
| 2795 | if (new_ml) { |
Kamil Rytarowski | a16878d | 2017-09-03 18:33:04 +0200 | [diff] [blame^] | 2796 | QTAILQ_INSERT_TAIL(&submr_print_queue, new_ml, mrqueue); |
Jan Kiszka | 9479c57 | 2011-09-27 15:00:41 +0200 | [diff] [blame] | 2797 | } |
| 2798 | } |
| 2799 | |
Kamil Rytarowski | a16878d | 2017-09-03 18:33:04 +0200 | [diff] [blame^] | 2800 | QTAILQ_FOREACH(ml, &submr_print_queue, mrqueue) { |
Peter Xu | b31f841 | 2017-03-14 20:56:27 +0800 | [diff] [blame] | 2801 | mtree_print_mr(mon_printf, f, ml->mr, level + 1, cur_start, |
Jan Kiszka | 9479c57 | 2011-09-27 15:00:41 +0200 | [diff] [blame] | 2802 | alias_print_queue); |
| 2803 | } |
| 2804 | |
Kamil Rytarowski | a16878d | 2017-09-03 18:33:04 +0200 | [diff] [blame^] | 2805 | QTAILQ_FOREACH_SAFE(ml, &submr_print_queue, mrqueue, next_ml) { |
Jan Kiszka | 9479c57 | 2011-09-27 15:00:41 +0200 | [diff] [blame] | 2806 | g_free(ml); |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2807 | } |
| 2808 | } |
| 2809 | |
Peter Xu | 57bb40c | 2017-01-16 16:40:05 +0800 | [diff] [blame] | 2810 | static void mtree_print_flatview(fprintf_function p, void *f, |
| 2811 | AddressSpace *as) |
| 2812 | { |
| 2813 | FlatView *view = address_space_get_flatview(as); |
| 2814 | FlatRange *range = &view->ranges[0]; |
| 2815 | MemoryRegion *mr; |
| 2816 | int n = view->nr; |
| 2817 | |
| 2818 | if (n <= 0) { |
| 2819 | p(f, MTREE_INDENT "No rendered FlatView for " |
| 2820 | "address space '%s'\n", as->name); |
| 2821 | flatview_unref(view); |
| 2822 | return; |
| 2823 | } |
| 2824 | |
| 2825 | while (n--) { |
| 2826 | mr = range->mr; |
Paolo Bonzini | 377a07a | 2017-03-02 22:49:41 +0100 | [diff] [blame] | 2827 | if (range->offset_in_region) { |
| 2828 | p(f, MTREE_INDENT TARGET_FMT_plx "-" |
| 2829 | TARGET_FMT_plx " (prio %d, %s): %s @" TARGET_FMT_plx "\n", |
| 2830 | int128_get64(range->addr.start), |
| 2831 | int128_get64(range->addr.start) + MR_SIZE(range->addr.size), |
| 2832 | mr->priority, |
| 2833 | range->readonly ? "rom" : memory_region_type(mr), |
| 2834 | memory_region_name(mr), |
| 2835 | range->offset_in_region); |
| 2836 | } else { |
| 2837 | p(f, MTREE_INDENT TARGET_FMT_plx "-" |
| 2838 | TARGET_FMT_plx " (prio %d, %s): %s\n", |
| 2839 | int128_get64(range->addr.start), |
| 2840 | int128_get64(range->addr.start) + MR_SIZE(range->addr.size), |
| 2841 | mr->priority, |
| 2842 | range->readonly ? "rom" : memory_region_type(mr), |
| 2843 | memory_region_name(mr)); |
| 2844 | } |
Peter Xu | 57bb40c | 2017-01-16 16:40:05 +0800 | [diff] [blame] | 2845 | range++; |
| 2846 | } |
| 2847 | |
| 2848 | flatview_unref(view); |
| 2849 | } |
| 2850 | |
| 2851 | void mtree_info(fprintf_function mon_printf, void *f, bool flatview) |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2852 | { |
| 2853 | MemoryRegionListHead ml_head; |
| 2854 | MemoryRegionList *ml, *ml2; |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 2855 | AddressSpace *as; |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2856 | |
Peter Xu | 57bb40c | 2017-01-16 16:40:05 +0800 | [diff] [blame] | 2857 | if (flatview) { |
| 2858 | QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) { |
| 2859 | mon_printf(f, "address-space (flat view): %s\n", as->name); |
| 2860 | mtree_print_flatview(mon_printf, f, as); |
| 2861 | mon_printf(f, "\n"); |
| 2862 | } |
| 2863 | return; |
| 2864 | } |
| 2865 | |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2866 | QTAILQ_INIT(&ml_head); |
| 2867 | |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 2868 | QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) { |
Gerd Hoffmann | e48816a | 2015-04-08 12:53:47 +0200 | [diff] [blame] | 2869 | mon_printf(f, "address-space: %s\n", as->name); |
| 2870 | mtree_print_mr(mon_printf, f, as->root, 1, 0, &ml_head); |
| 2871 | mon_printf(f, "\n"); |
Blue Swirl | b9f9be8 | 2012-03-10 16:58:35 +0000 | [diff] [blame] | 2872 | } |
| 2873 | |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2874 | /* print aliased regions */ |
Kamil Rytarowski | a16878d | 2017-09-03 18:33:04 +0200 | [diff] [blame^] | 2875 | QTAILQ_FOREACH(ml, &ml_head, mrqueue) { |
Gerd Hoffmann | e48816a | 2015-04-08 12:53:47 +0200 | [diff] [blame] | 2876 | mon_printf(f, "memory-region: %s\n", memory_region_name(ml->mr)); |
| 2877 | mtree_print_mr(mon_printf, f, ml->mr, 1, 0, &ml_head); |
| 2878 | mon_printf(f, "\n"); |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2879 | } |
| 2880 | |
Kamil Rytarowski | a16878d | 2017-09-03 18:33:04 +0200 | [diff] [blame^] | 2881 | QTAILQ_FOREACH_SAFE(ml, &ml_head, mrqueue, ml2) { |
Avi Kivity | 88365e4 | 2011-11-13 12:00:55 +0200 | [diff] [blame] | 2882 | g_free(ml); |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2883 | } |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2884 | } |
Peter Crosthwaite | b4fefef | 2014-06-05 23:15:52 -0700 | [diff] [blame] | 2885 | |
Peter Maydell | b08199c | 2017-07-07 15:42:51 +0100 | [diff] [blame] | 2886 | void memory_region_init_ram(MemoryRegion *mr, |
| 2887 | struct Object *owner, |
| 2888 | const char *name, |
| 2889 | uint64_t size, |
| 2890 | Error **errp) |
| 2891 | { |
| 2892 | DeviceState *owner_dev; |
| 2893 | Error *err = NULL; |
| 2894 | |
| 2895 | memory_region_init_ram_nomigrate(mr, owner, name, size, &err); |
| 2896 | if (err) { |
| 2897 | error_propagate(errp, err); |
| 2898 | return; |
| 2899 | } |
| 2900 | /* This will assert if owner is neither NULL nor a DeviceState. |
| 2901 | * We only want the owner here for the purposes of defining a |
| 2902 | * unique name for migration. TODO: Ideally we should implement |
| 2903 | * a naming scheme for Objects which are not DeviceStates, in |
| 2904 | * which case we can relax this restriction. |
| 2905 | */ |
| 2906 | owner_dev = DEVICE(owner); |
| 2907 | vmstate_register_ram(mr, owner_dev); |
| 2908 | } |
| 2909 | |
| 2910 | void memory_region_init_rom(MemoryRegion *mr, |
| 2911 | struct Object *owner, |
| 2912 | const char *name, |
| 2913 | uint64_t size, |
| 2914 | Error **errp) |
| 2915 | { |
| 2916 | DeviceState *owner_dev; |
| 2917 | Error *err = NULL; |
| 2918 | |
| 2919 | memory_region_init_rom_nomigrate(mr, owner, name, size, &err); |
| 2920 | if (err) { |
| 2921 | error_propagate(errp, err); |
| 2922 | return; |
| 2923 | } |
| 2924 | /* This will assert if owner is neither NULL nor a DeviceState. |
| 2925 | * We only want the owner here for the purposes of defining a |
| 2926 | * unique name for migration. TODO: Ideally we should implement |
| 2927 | * a naming scheme for Objects which are not DeviceStates, in |
| 2928 | * which case we can relax this restriction. |
| 2929 | */ |
| 2930 | owner_dev = DEVICE(owner); |
| 2931 | vmstate_register_ram(mr, owner_dev); |
| 2932 | } |
| 2933 | |
| 2934 | void memory_region_init_rom_device(MemoryRegion *mr, |
| 2935 | struct Object *owner, |
| 2936 | const MemoryRegionOps *ops, |
| 2937 | void *opaque, |
| 2938 | const char *name, |
| 2939 | uint64_t size, |
| 2940 | Error **errp) |
| 2941 | { |
| 2942 | DeviceState *owner_dev; |
| 2943 | Error *err = NULL; |
| 2944 | |
| 2945 | memory_region_init_rom_device_nomigrate(mr, owner, ops, opaque, |
| 2946 | name, size, &err); |
| 2947 | if (err) { |
| 2948 | error_propagate(errp, err); |
| 2949 | return; |
| 2950 | } |
| 2951 | /* This will assert if owner is neither NULL nor a DeviceState. |
| 2952 | * We only want the owner here for the purposes of defining a |
| 2953 | * unique name for migration. TODO: Ideally we should implement |
| 2954 | * a naming scheme for Objects which are not DeviceStates, in |
| 2955 | * which case we can relax this restriction. |
| 2956 | */ |
| 2957 | owner_dev = DEVICE(owner); |
| 2958 | vmstate_register_ram(mr, owner_dev); |
| 2959 | } |
| 2960 | |
Peter Crosthwaite | b4fefef | 2014-06-05 23:15:52 -0700 | [diff] [blame] | 2961 | static const TypeInfo memory_region_info = { |
| 2962 | .parent = TYPE_OBJECT, |
| 2963 | .name = TYPE_MEMORY_REGION, |
| 2964 | .instance_size = sizeof(MemoryRegion), |
| 2965 | .instance_init = memory_region_initfn, |
| 2966 | .instance_finalize = memory_region_finalize, |
| 2967 | }; |
| 2968 | |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 2969 | static const TypeInfo iommu_memory_region_info = { |
| 2970 | .parent = TYPE_MEMORY_REGION, |
| 2971 | .name = TYPE_IOMMU_MEMORY_REGION, |
Alexey Kardashevskiy | 1221a47 | 2017-07-11 13:56:20 +1000 | [diff] [blame] | 2972 | .class_size = sizeof(IOMMUMemoryRegionClass), |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 2973 | .instance_size = sizeof(IOMMUMemoryRegion), |
| 2974 | .instance_init = iommu_memory_region_initfn, |
Alexey Kardashevskiy | 1221a47 | 2017-07-11 13:56:20 +1000 | [diff] [blame] | 2975 | .abstract = true, |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 2976 | }; |
| 2977 | |
Peter Crosthwaite | b4fefef | 2014-06-05 23:15:52 -0700 | [diff] [blame] | 2978 | static void memory_register_types(void) |
| 2979 | { |
| 2980 | type_register_static(&memory_region_info); |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 2981 | type_register_static(&iommu_memory_region_info); |
Peter Crosthwaite | b4fefef | 2014-06-05 23:15:52 -0700 | [diff] [blame] | 2982 | } |
| 2983 | |
| 2984 | type_init(memory_register_types) |