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 | |
Paolo Bonzini | 022c62c | 2012-12-17 18:19:49 +0100 | [diff] [blame] | 16 | #include "exec/memory.h" |
| 17 | #include "exec/address-spaces.h" |
| 18 | #include "exec/ioport.h" |
Paolo Bonzini | 1de7afc | 2012-12-17 18:20:00 +0100 | [diff] [blame] | 19 | #include "qemu/bitops.h" |
Paolo Bonzini | 9c17d61 | 2012-12-17 18:20:04 +0100 | [diff] [blame] | 20 | #include "sysemu/kvm.h" |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 21 | #include <assert.h> |
| 22 | |
Paolo Bonzini | 022c62c | 2012-12-17 18:19:49 +0100 | [diff] [blame] | 23 | #include "exec/memory-internal.h" |
Avi Kivity | 67d95c1 | 2011-12-15 15:25:22 +0200 | [diff] [blame] | 24 | |
Jan Kiszka | 22bde71 | 2012-11-05 16:45:56 +0100 | [diff] [blame] | 25 | static unsigned memory_region_transaction_depth; |
| 26 | static bool memory_region_update_pending; |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 27 | static bool global_dirty_log = false; |
| 28 | |
Avi Kivity | 72e22d2 | 2012-02-08 15:05:50 +0200 | [diff] [blame] | 29 | static QTAILQ_HEAD(memory_listeners, MemoryListener) memory_listeners |
| 30 | = QTAILQ_HEAD_INITIALIZER(memory_listeners); |
Avi Kivity | 4ef4db8 | 2011-07-26 14:26:13 +0300 | [diff] [blame] | 31 | |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 32 | static QTAILQ_HEAD(, AddressSpace) address_spaces |
| 33 | = QTAILQ_HEAD_INITIALIZER(address_spaces); |
| 34 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 35 | typedef struct AddrRange AddrRange; |
| 36 | |
Avi Kivity | 8417ceb | 2011-08-03 11:56:14 +0300 | [diff] [blame] | 37 | /* |
| 38 | * Note using signed integers limits us to physical addresses at most |
| 39 | * 63 bits wide. They are needed for negative offsetting in aliases |
| 40 | * (large MemoryRegion::alias_offset). |
| 41 | */ |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 42 | struct AddrRange { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 43 | Int128 start; |
| 44 | Int128 size; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 45 | }; |
| 46 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 47 | static AddrRange addrrange_make(Int128 start, Int128 size) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 48 | { |
| 49 | return (AddrRange) { start, size }; |
| 50 | } |
| 51 | |
| 52 | static bool addrrange_equal(AddrRange r1, AddrRange r2) |
| 53 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 54 | 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] | 55 | } |
| 56 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 57 | static Int128 addrrange_end(AddrRange r) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 58 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 59 | return int128_add(r.start, r.size); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 60 | } |
| 61 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 62 | static AddrRange addrrange_shift(AddrRange range, Int128 delta) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 63 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 64 | int128_addto(&range.start, delta); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 65 | return range; |
| 66 | } |
| 67 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 68 | static bool addrrange_contains(AddrRange range, Int128 addr) |
| 69 | { |
| 70 | return int128_ge(addr, range.start) |
| 71 | && int128_lt(addr, addrrange_end(range)); |
| 72 | } |
| 73 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 74 | static bool addrrange_intersects(AddrRange r1, AddrRange r2) |
| 75 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 76 | return addrrange_contains(r1, r2.start) |
| 77 | || addrrange_contains(r2, r1.start); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 78 | } |
| 79 | |
| 80 | static AddrRange addrrange_intersection(AddrRange r1, AddrRange r2) |
| 81 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 82 | Int128 start = int128_max(r1.start, r2.start); |
| 83 | Int128 end = int128_min(addrrange_end(r1), addrrange_end(r2)); |
| 84 | return addrrange_make(start, int128_sub(end, start)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 85 | } |
| 86 | |
Avi Kivity | 0e0d36b | 2012-02-08 16:39:45 +0200 | [diff] [blame] | 87 | enum ListenerDirection { Forward, Reverse }; |
| 88 | |
Avi Kivity | 7376e58 | 2012-02-08 21:05:17 +0200 | [diff] [blame] | 89 | static bool memory_listener_match(MemoryListener *listener, |
| 90 | MemoryRegionSection *section) |
| 91 | { |
| 92 | return !listener->address_space_filter |
| 93 | || listener->address_space_filter == section->address_space; |
| 94 | } |
| 95 | |
| 96 | #define MEMORY_LISTENER_CALL_GLOBAL(_callback, _direction, _args...) \ |
Avi Kivity | 0e0d36b | 2012-02-08 16:39:45 +0200 | [diff] [blame] | 97 | do { \ |
| 98 | MemoryListener *_listener; \ |
| 99 | \ |
| 100 | switch (_direction) { \ |
| 101 | case Forward: \ |
| 102 | QTAILQ_FOREACH(_listener, &memory_listeners, link) { \ |
Avi Kivity | 975aefe | 2012-10-02 16:39:57 +0200 | [diff] [blame] | 103 | if (_listener->_callback) { \ |
| 104 | _listener->_callback(_listener, ##_args); \ |
| 105 | } \ |
Avi Kivity | 0e0d36b | 2012-02-08 16:39:45 +0200 | [diff] [blame] | 106 | } \ |
| 107 | break; \ |
| 108 | case Reverse: \ |
| 109 | QTAILQ_FOREACH_REVERSE(_listener, &memory_listeners, \ |
| 110 | memory_listeners, link) { \ |
Avi Kivity | 975aefe | 2012-10-02 16:39:57 +0200 | [diff] [blame] | 111 | if (_listener->_callback) { \ |
| 112 | _listener->_callback(_listener, ##_args); \ |
| 113 | } \ |
Avi Kivity | 0e0d36b | 2012-02-08 16:39:45 +0200 | [diff] [blame] | 114 | } \ |
| 115 | break; \ |
| 116 | default: \ |
| 117 | abort(); \ |
| 118 | } \ |
| 119 | } while (0) |
| 120 | |
Avi Kivity | 7376e58 | 2012-02-08 21:05:17 +0200 | [diff] [blame] | 121 | #define MEMORY_LISTENER_CALL(_callback, _direction, _section, _args...) \ |
| 122 | do { \ |
| 123 | MemoryListener *_listener; \ |
| 124 | \ |
| 125 | switch (_direction) { \ |
| 126 | case Forward: \ |
| 127 | QTAILQ_FOREACH(_listener, &memory_listeners, link) { \ |
Avi Kivity | 975aefe | 2012-10-02 16:39:57 +0200 | [diff] [blame] | 128 | if (_listener->_callback \ |
| 129 | && memory_listener_match(_listener, _section)) { \ |
Avi Kivity | 7376e58 | 2012-02-08 21:05:17 +0200 | [diff] [blame] | 130 | _listener->_callback(_listener, _section, ##_args); \ |
| 131 | } \ |
| 132 | } \ |
| 133 | break; \ |
| 134 | case Reverse: \ |
| 135 | QTAILQ_FOREACH_REVERSE(_listener, &memory_listeners, \ |
| 136 | memory_listeners, link) { \ |
Avi Kivity | 975aefe | 2012-10-02 16:39:57 +0200 | [diff] [blame] | 137 | if (_listener->_callback \ |
| 138 | && memory_listener_match(_listener, _section)) { \ |
Avi Kivity | 7376e58 | 2012-02-08 21:05:17 +0200 | [diff] [blame] | 139 | _listener->_callback(_listener, _section, ##_args); \ |
| 140 | } \ |
| 141 | } \ |
| 142 | break; \ |
| 143 | default: \ |
| 144 | abort(); \ |
| 145 | } \ |
| 146 | } while (0) |
| 147 | |
Avi Kivity | 0e0d36b | 2012-02-08 16:39:45 +0200 | [diff] [blame] | 148 | #define MEMORY_LISTENER_UPDATE_REGION(fr, as, dir, callback) \ |
Avi Kivity | 7376e58 | 2012-02-08 21:05:17 +0200 | [diff] [blame] | 149 | MEMORY_LISTENER_CALL(callback, dir, (&(MemoryRegionSection) { \ |
Avi Kivity | 0e0d36b | 2012-02-08 16:39:45 +0200 | [diff] [blame] | 150 | .mr = (fr)->mr, \ |
Avi Kivity | f6790af | 2012-10-02 20:13:51 +0200 | [diff] [blame] | 151 | .address_space = (as), \ |
Avi Kivity | 0e0d36b | 2012-02-08 16:39:45 +0200 | [diff] [blame] | 152 | .offset_within_region = (fr)->offset_in_region, \ |
| 153 | .size = int128_get64((fr)->addr.size), \ |
| 154 | .offset_within_address_space = int128_get64((fr)->addr.start), \ |
Avi Kivity | 7a8499e | 2012-02-08 17:01:23 +0200 | [diff] [blame] | 155 | .readonly = (fr)->readonly, \ |
Avi Kivity | 7376e58 | 2012-02-08 21:05:17 +0200 | [diff] [blame] | 156 | })) |
Avi Kivity | 0e0d36b | 2012-02-08 16:39:45 +0200 | [diff] [blame] | 157 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 158 | struct CoalescedMemoryRange { |
| 159 | AddrRange addr; |
| 160 | QTAILQ_ENTRY(CoalescedMemoryRange) link; |
| 161 | }; |
| 162 | |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 163 | struct MemoryRegionIoeventfd { |
| 164 | AddrRange addr; |
| 165 | bool match_data; |
| 166 | uint64_t data; |
Paolo Bonzini | 753d5e1 | 2012-07-05 17:16:27 +0200 | [diff] [blame] | 167 | EventNotifier *e; |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 168 | }; |
| 169 | |
| 170 | static bool memory_region_ioeventfd_before(MemoryRegionIoeventfd a, |
| 171 | MemoryRegionIoeventfd b) |
| 172 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 173 | if (int128_lt(a.addr.start, b.addr.start)) { |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 174 | return true; |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 175 | } else if (int128_gt(a.addr.start, b.addr.start)) { |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 176 | return false; |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 177 | } else if (int128_lt(a.addr.size, b.addr.size)) { |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 178 | return true; |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 179 | } else if (int128_gt(a.addr.size, b.addr.size)) { |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 180 | return false; |
| 181 | } else if (a.match_data < b.match_data) { |
| 182 | return true; |
| 183 | } else if (a.match_data > b.match_data) { |
| 184 | return false; |
| 185 | } else if (a.match_data) { |
| 186 | if (a.data < b.data) { |
| 187 | return true; |
| 188 | } else if (a.data > b.data) { |
| 189 | return false; |
| 190 | } |
| 191 | } |
Paolo Bonzini | 753d5e1 | 2012-07-05 17:16:27 +0200 | [diff] [blame] | 192 | if (a.e < b.e) { |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 193 | return true; |
Paolo Bonzini | 753d5e1 | 2012-07-05 17:16:27 +0200 | [diff] [blame] | 194 | } else if (a.e > b.e) { |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 195 | return false; |
| 196 | } |
| 197 | return false; |
| 198 | } |
| 199 | |
| 200 | static bool memory_region_ioeventfd_equal(MemoryRegionIoeventfd a, |
| 201 | MemoryRegionIoeventfd b) |
| 202 | { |
| 203 | return !memory_region_ioeventfd_before(a, b) |
| 204 | && !memory_region_ioeventfd_before(b, a); |
| 205 | } |
| 206 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 207 | typedef struct FlatRange FlatRange; |
| 208 | typedef struct FlatView FlatView; |
| 209 | |
| 210 | /* Range of memory in the global map. Addresses are absolute. */ |
| 211 | struct FlatRange { |
| 212 | MemoryRegion *mr; |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 213 | hwaddr offset_in_region; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 214 | AddrRange addr; |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 215 | uint8_t dirty_log_mask; |
Jan Kiszka | 5f9a5ea | 2013-05-07 19:04:25 +0200 | [diff] [blame] | 216 | bool romd_mode; |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 217 | bool readonly; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 218 | }; |
| 219 | |
| 220 | /* Flattened global view of current active memory hierarchy. Kept in sorted |
| 221 | * order. |
| 222 | */ |
| 223 | struct FlatView { |
| 224 | FlatRange *ranges; |
| 225 | unsigned nr; |
| 226 | unsigned nr_allocated; |
| 227 | }; |
| 228 | |
Avi Kivity | cc31e6e | 2011-07-26 14:26:05 +0300 | [diff] [blame] | 229 | typedef struct AddressSpaceOps AddressSpaceOps; |
| 230 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 231 | #define FOR_EACH_FLAT_RANGE(var, view) \ |
| 232 | for (var = (view)->ranges; var < (view)->ranges + (view)->nr; ++var) |
| 233 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 234 | static bool flatrange_equal(FlatRange *a, FlatRange *b) |
| 235 | { |
| 236 | return a->mr == b->mr |
| 237 | && addrrange_equal(a->addr, b->addr) |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 238 | && a->offset_in_region == b->offset_in_region |
Jan Kiszka | 5f9a5ea | 2013-05-07 19:04:25 +0200 | [diff] [blame] | 239 | && a->romd_mode == b->romd_mode |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 240 | && a->readonly == b->readonly; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 241 | } |
| 242 | |
| 243 | static void flatview_init(FlatView *view) |
| 244 | { |
| 245 | view->ranges = NULL; |
| 246 | view->nr = 0; |
| 247 | view->nr_allocated = 0; |
| 248 | } |
| 249 | |
| 250 | /* Insert a range into a given position. Caller is responsible for maintaining |
| 251 | * sorting order. |
| 252 | */ |
| 253 | static void flatview_insert(FlatView *view, unsigned pos, FlatRange *range) |
| 254 | { |
| 255 | if (view->nr == view->nr_allocated) { |
| 256 | view->nr_allocated = MAX(2 * view->nr, 10); |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 257 | view->ranges = g_realloc(view->ranges, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 258 | view->nr_allocated * sizeof(*view->ranges)); |
| 259 | } |
| 260 | memmove(view->ranges + pos + 1, view->ranges + pos, |
| 261 | (view->nr - pos) * sizeof(FlatRange)); |
| 262 | view->ranges[pos] = *range; |
| 263 | ++view->nr; |
| 264 | } |
| 265 | |
| 266 | static void flatview_destroy(FlatView *view) |
| 267 | { |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 268 | g_free(view->ranges); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 269 | } |
| 270 | |
Avi Kivity | 3d8e6bf | 2011-07-26 14:26:03 +0300 | [diff] [blame] | 271 | static bool can_merge(FlatRange *r1, FlatRange *r2) |
| 272 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 273 | return int128_eq(addrrange_end(r1->addr), r2->addr.start) |
Avi Kivity | 3d8e6bf | 2011-07-26 14:26:03 +0300 | [diff] [blame] | 274 | && r1->mr == r2->mr |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 275 | && int128_eq(int128_add(int128_make64(r1->offset_in_region), |
| 276 | r1->addr.size), |
| 277 | int128_make64(r2->offset_in_region)) |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 278 | && r1->dirty_log_mask == r2->dirty_log_mask |
Jan Kiszka | 5f9a5ea | 2013-05-07 19:04:25 +0200 | [diff] [blame] | 279 | && r1->romd_mode == r2->romd_mode |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 280 | && r1->readonly == r2->readonly; |
Avi Kivity | 3d8e6bf | 2011-07-26 14:26:03 +0300 | [diff] [blame] | 281 | } |
| 282 | |
| 283 | /* Attempt to simplify a view by merging ajacent ranges */ |
| 284 | static void flatview_simplify(FlatView *view) |
| 285 | { |
| 286 | unsigned i, j; |
| 287 | |
| 288 | i = 0; |
| 289 | while (i < view->nr) { |
| 290 | j = i + 1; |
| 291 | while (j < view->nr |
| 292 | && can_merge(&view->ranges[j-1], &view->ranges[j])) { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 293 | int128_addto(&view->ranges[i].addr.size, view->ranges[j].addr.size); |
Avi Kivity | 3d8e6bf | 2011-07-26 14:26:03 +0300 | [diff] [blame] | 294 | ++j; |
| 295 | } |
| 296 | ++i; |
| 297 | memmove(&view->ranges[i], &view->ranges[j], |
| 298 | (view->nr - j) * sizeof(view->ranges[j])); |
| 299 | view->nr -= j - i; |
| 300 | } |
| 301 | } |
| 302 | |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 303 | static void memory_region_read_accessor(void *opaque, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 304 | hwaddr addr, |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 305 | uint64_t *value, |
| 306 | unsigned size, |
| 307 | unsigned shift, |
| 308 | uint64_t mask) |
| 309 | { |
| 310 | MemoryRegion *mr = opaque; |
| 311 | uint64_t tmp; |
| 312 | |
Jan Kiszka | d410515 | 2012-08-23 13:02:29 +0200 | [diff] [blame] | 313 | if (mr->flush_coalesced_mmio) { |
| 314 | qemu_flush_coalesced_mmio_buffer(); |
| 315 | } |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 316 | tmp = mr->ops->read(mr->opaque, addr, size); |
| 317 | *value |= (tmp & mask) << shift; |
| 318 | } |
| 319 | |
| 320 | static void memory_region_write_accessor(void *opaque, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 321 | hwaddr addr, |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 322 | uint64_t *value, |
| 323 | unsigned size, |
| 324 | unsigned shift, |
| 325 | uint64_t mask) |
| 326 | { |
| 327 | MemoryRegion *mr = opaque; |
| 328 | uint64_t tmp; |
| 329 | |
Jan Kiszka | d410515 | 2012-08-23 13:02:29 +0200 | [diff] [blame] | 330 | if (mr->flush_coalesced_mmio) { |
| 331 | qemu_flush_coalesced_mmio_buffer(); |
| 332 | } |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 333 | tmp = (*value >> shift) & mask; |
| 334 | mr->ops->write(mr->opaque, addr, tmp, size); |
| 335 | } |
| 336 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 337 | static void access_with_adjusted_size(hwaddr addr, |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 338 | uint64_t *value, |
| 339 | unsigned size, |
| 340 | unsigned access_size_min, |
| 341 | unsigned access_size_max, |
| 342 | void (*access)(void *opaque, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 343 | hwaddr addr, |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 344 | uint64_t *value, |
| 345 | unsigned size, |
| 346 | unsigned shift, |
| 347 | uint64_t mask), |
| 348 | void *opaque) |
| 349 | { |
| 350 | uint64_t access_mask; |
| 351 | unsigned access_size; |
| 352 | unsigned i; |
| 353 | |
| 354 | if (!access_size_min) { |
| 355 | access_size_min = 1; |
| 356 | } |
| 357 | if (!access_size_max) { |
| 358 | access_size_max = 4; |
| 359 | } |
| 360 | access_size = MAX(MIN(size, access_size_max), access_size_min); |
| 361 | access_mask = -1ULL >> (64 - access_size * 8); |
| 362 | for (i = 0; i < size; i += access_size) { |
| 363 | /* FIXME: big-endian support */ |
| 364 | access(opaque, addr + i, value, access_size, i * 8, access_mask); |
| 365 | } |
| 366 | } |
| 367 | |
Avi Kivity | 627a0e9 | 2011-07-26 14:26:09 +0300 | [diff] [blame] | 368 | static const MemoryRegionPortio *find_portio(MemoryRegion *mr, uint64_t offset, |
| 369 | unsigned width, bool write) |
| 370 | { |
| 371 | const MemoryRegionPortio *mrp; |
| 372 | |
| 373 | for (mrp = mr->ops->old_portio; mrp->size; ++mrp) { |
| 374 | if (offset >= mrp->offset && offset < mrp->offset + mrp->len |
| 375 | && width == mrp->size |
| 376 | && (write ? (bool)mrp->write : (bool)mrp->read)) { |
| 377 | return mrp; |
| 378 | } |
| 379 | } |
| 380 | return NULL; |
| 381 | } |
| 382 | |
Avi Kivity | 658b222 | 2011-07-26 14:26:08 +0300 | [diff] [blame] | 383 | static void memory_region_iorange_read(IORange *iorange, |
| 384 | uint64_t offset, |
| 385 | unsigned width, |
| 386 | uint64_t *data) |
| 387 | { |
Avi Kivity | a2d3352 | 2012-03-05 17:40:12 +0200 | [diff] [blame] | 388 | MemoryRegionIORange *mrio |
| 389 | = container_of(iorange, MemoryRegionIORange, iorange); |
| 390 | MemoryRegion *mr = mrio->mr; |
Avi Kivity | 658b222 | 2011-07-26 14:26:08 +0300 | [diff] [blame] | 391 | |
Avi Kivity | a2d3352 | 2012-03-05 17:40:12 +0200 | [diff] [blame] | 392 | offset += mrio->offset; |
Avi Kivity | 627a0e9 | 2011-07-26 14:26:09 +0300 | [diff] [blame] | 393 | if (mr->ops->old_portio) { |
Avi Kivity | a2d3352 | 2012-03-05 17:40:12 +0200 | [diff] [blame] | 394 | const MemoryRegionPortio *mrp = find_portio(mr, offset - mrio->offset, |
| 395 | width, false); |
Avi Kivity | 627a0e9 | 2011-07-26 14:26:09 +0300 | [diff] [blame] | 396 | |
| 397 | *data = ((uint64_t)1 << (width * 8)) - 1; |
| 398 | if (mrp) { |
Avi Kivity | 2b50aa1 | 2012-01-08 19:51:35 +0200 | [diff] [blame] | 399 | *data = mrp->read(mr->opaque, offset); |
Jan Kiszka | 03808f5 | 2011-09-18 14:51:58 +0200 | [diff] [blame] | 400 | } else if (width == 2) { |
Avi Kivity | a2d3352 | 2012-03-05 17:40:12 +0200 | [diff] [blame] | 401 | mrp = find_portio(mr, offset - mrio->offset, 1, false); |
Jan Kiszka | 03808f5 | 2011-09-18 14:51:58 +0200 | [diff] [blame] | 402 | assert(mrp); |
Avi Kivity | 2b50aa1 | 2012-01-08 19:51:35 +0200 | [diff] [blame] | 403 | *data = mrp->read(mr->opaque, offset) | |
| 404 | (mrp->read(mr->opaque, offset + 1) << 8); |
Avi Kivity | 627a0e9 | 2011-07-26 14:26:09 +0300 | [diff] [blame] | 405 | } |
| 406 | return; |
| 407 | } |
Avi Kivity | 3a130f4 | 2011-08-11 10:40:26 +0300 | [diff] [blame] | 408 | *data = 0; |
Avi Kivity | 2b50aa1 | 2012-01-08 19:51:35 +0200 | [diff] [blame] | 409 | access_with_adjusted_size(offset, data, width, |
Avi Kivity | 3a130f4 | 2011-08-11 10:40:26 +0300 | [diff] [blame] | 410 | mr->ops->impl.min_access_size, |
| 411 | mr->ops->impl.max_access_size, |
| 412 | memory_region_read_accessor, mr); |
Avi Kivity | 658b222 | 2011-07-26 14:26:08 +0300 | [diff] [blame] | 413 | } |
| 414 | |
| 415 | static void memory_region_iorange_write(IORange *iorange, |
| 416 | uint64_t offset, |
| 417 | unsigned width, |
| 418 | uint64_t data) |
| 419 | { |
Avi Kivity | a2d3352 | 2012-03-05 17:40:12 +0200 | [diff] [blame] | 420 | MemoryRegionIORange *mrio |
| 421 | = container_of(iorange, MemoryRegionIORange, iorange); |
| 422 | MemoryRegion *mr = mrio->mr; |
Avi Kivity | 658b222 | 2011-07-26 14:26:08 +0300 | [diff] [blame] | 423 | |
Avi Kivity | a2d3352 | 2012-03-05 17:40:12 +0200 | [diff] [blame] | 424 | offset += mrio->offset; |
Avi Kivity | 627a0e9 | 2011-07-26 14:26:09 +0300 | [diff] [blame] | 425 | if (mr->ops->old_portio) { |
Avi Kivity | a2d3352 | 2012-03-05 17:40:12 +0200 | [diff] [blame] | 426 | const MemoryRegionPortio *mrp = find_portio(mr, offset - mrio->offset, |
| 427 | width, true); |
Avi Kivity | 627a0e9 | 2011-07-26 14:26:09 +0300 | [diff] [blame] | 428 | |
| 429 | if (mrp) { |
Avi Kivity | 2b50aa1 | 2012-01-08 19:51:35 +0200 | [diff] [blame] | 430 | mrp->write(mr->opaque, offset, data); |
Jan Kiszka | 03808f5 | 2011-09-18 14:51:58 +0200 | [diff] [blame] | 431 | } else if (width == 2) { |
Jan Kiszka | 7e2a62d | 2012-08-26 10:12:47 +0200 | [diff] [blame] | 432 | mrp = find_portio(mr, offset - mrio->offset, 1, true); |
Jan Kiszka | 03808f5 | 2011-09-18 14:51:58 +0200 | [diff] [blame] | 433 | assert(mrp); |
Avi Kivity | 2b50aa1 | 2012-01-08 19:51:35 +0200 | [diff] [blame] | 434 | mrp->write(mr->opaque, offset, data & 0xff); |
| 435 | mrp->write(mr->opaque, offset + 1, data >> 8); |
Avi Kivity | 627a0e9 | 2011-07-26 14:26:09 +0300 | [diff] [blame] | 436 | } |
| 437 | return; |
| 438 | } |
Avi Kivity | 2b50aa1 | 2012-01-08 19:51:35 +0200 | [diff] [blame] | 439 | access_with_adjusted_size(offset, &data, width, |
Avi Kivity | 3a130f4 | 2011-08-11 10:40:26 +0300 | [diff] [blame] | 440 | mr->ops->impl.min_access_size, |
| 441 | mr->ops->impl.max_access_size, |
| 442 | memory_region_write_accessor, mr); |
Avi Kivity | 658b222 | 2011-07-26 14:26:08 +0300 | [diff] [blame] | 443 | } |
| 444 | |
Avi Kivity | a2d3352 | 2012-03-05 17:40:12 +0200 | [diff] [blame] | 445 | static void memory_region_iorange_destructor(IORange *iorange) |
| 446 | { |
| 447 | g_free(container_of(iorange, MemoryRegionIORange, iorange)); |
| 448 | } |
| 449 | |
Avi Kivity | 9363274 | 2012-02-08 16:54:16 +0200 | [diff] [blame] | 450 | const IORangeOps memory_region_iorange_ops = { |
Avi Kivity | 658b222 | 2011-07-26 14:26:08 +0300 | [diff] [blame] | 451 | .read = memory_region_iorange_read, |
| 452 | .write = memory_region_iorange_write, |
Avi Kivity | a2d3352 | 2012-03-05 17:40:12 +0200 | [diff] [blame] | 453 | .destructor = memory_region_iorange_destructor, |
Avi Kivity | 658b222 | 2011-07-26 14:26:08 +0300 | [diff] [blame] | 454 | }; |
| 455 | |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 456 | static AddressSpace *memory_region_to_address_space(MemoryRegion *mr) |
| 457 | { |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 458 | AddressSpace *as; |
| 459 | |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 460 | while (mr->parent) { |
| 461 | mr = mr->parent; |
| 462 | } |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 463 | QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) { |
| 464 | if (mr == as->root) { |
| 465 | return as; |
| 466 | } |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 467 | } |
| 468 | abort(); |
| 469 | } |
| 470 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 471 | /* Render a memory region into the global view. Ranges in @view obscure |
| 472 | * ranges in @mr. |
| 473 | */ |
| 474 | static void render_memory_region(FlatView *view, |
| 475 | MemoryRegion *mr, |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 476 | Int128 base, |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 477 | AddrRange clip, |
| 478 | bool readonly) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 479 | { |
| 480 | MemoryRegion *subregion; |
| 481 | unsigned i; |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 482 | hwaddr offset_in_region; |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 483 | Int128 remain; |
| 484 | Int128 now; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 485 | FlatRange fr; |
| 486 | AddrRange tmp; |
| 487 | |
Avi Kivity | 6bba19b | 2011-09-14 11:54:58 +0300 | [diff] [blame] | 488 | if (!mr->enabled) { |
| 489 | return; |
| 490 | } |
| 491 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 492 | int128_addto(&base, int128_make64(mr->addr)); |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 493 | readonly |= mr->readonly; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 494 | |
| 495 | tmp = addrrange_make(base, mr->size); |
| 496 | |
| 497 | if (!addrrange_intersects(tmp, clip)) { |
| 498 | return; |
| 499 | } |
| 500 | |
| 501 | clip = addrrange_intersection(tmp, clip); |
| 502 | |
| 503 | if (mr->alias) { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 504 | int128_subfrom(&base, int128_make64(mr->alias->addr)); |
| 505 | int128_subfrom(&base, int128_make64(mr->alias_offset)); |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 506 | render_memory_region(view, mr->alias, base, clip, readonly); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 507 | return; |
| 508 | } |
| 509 | |
| 510 | /* Render subregions in priority order. */ |
| 511 | QTAILQ_FOREACH(subregion, &mr->subregions, subregions_link) { |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 512 | render_memory_region(view, subregion, base, clip, readonly); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 513 | } |
| 514 | |
Avi Kivity | 14a3c10 | 2011-07-26 14:26:06 +0300 | [diff] [blame] | 515 | if (!mr->terminates) { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 516 | return; |
| 517 | } |
| 518 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 519 | offset_in_region = int128_get64(int128_sub(clip.start, base)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 520 | base = clip.start; |
| 521 | remain = clip.size; |
| 522 | |
| 523 | /* Render the region itself into any gaps left by the current view. */ |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 524 | for (i = 0; i < view->nr && int128_nz(remain); ++i) { |
| 525 | if (int128_ge(base, addrrange_end(view->ranges[i].addr))) { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 526 | continue; |
| 527 | } |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 528 | if (int128_lt(base, view->ranges[i].addr.start)) { |
| 529 | now = int128_min(remain, |
| 530 | int128_sub(view->ranges[i].addr.start, base)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 531 | fr.mr = mr; |
| 532 | fr.offset_in_region = offset_in_region; |
| 533 | fr.addr = addrrange_make(base, now); |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 534 | fr.dirty_log_mask = mr->dirty_log_mask; |
Jan Kiszka | 5f9a5ea | 2013-05-07 19:04:25 +0200 | [diff] [blame] | 535 | fr.romd_mode = mr->romd_mode; |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 536 | fr.readonly = readonly; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 537 | flatview_insert(view, i, &fr); |
| 538 | ++i; |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 539 | int128_addto(&base, now); |
| 540 | offset_in_region += int128_get64(now); |
| 541 | int128_subfrom(&remain, now); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 542 | } |
Avi Kivity | d26a8ca | 2012-10-29 18:22:36 +0200 | [diff] [blame] | 543 | now = int128_sub(int128_min(int128_add(base, remain), |
| 544 | addrrange_end(view->ranges[i].addr)), |
| 545 | base); |
| 546 | int128_addto(&base, now); |
| 547 | offset_in_region += int128_get64(now); |
| 548 | int128_subfrom(&remain, now); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 549 | } |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 550 | if (int128_nz(remain)) { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 551 | fr.mr = mr; |
| 552 | fr.offset_in_region = offset_in_region; |
| 553 | fr.addr = addrrange_make(base, remain); |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 554 | fr.dirty_log_mask = mr->dirty_log_mask; |
Jan Kiszka | 5f9a5ea | 2013-05-07 19:04:25 +0200 | [diff] [blame] | 555 | fr.romd_mode = mr->romd_mode; |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 556 | fr.readonly = readonly; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 557 | flatview_insert(view, i, &fr); |
| 558 | } |
| 559 | } |
| 560 | |
| 561 | /* Render a memory topology into a list of disjoint absolute ranges. */ |
| 562 | static FlatView generate_memory_topology(MemoryRegion *mr) |
| 563 | { |
| 564 | FlatView view; |
| 565 | |
| 566 | flatview_init(&view); |
| 567 | |
Avi Kivity | 83f3c25 | 2012-10-07 12:59:55 +0200 | [diff] [blame] | 568 | if (mr) { |
| 569 | render_memory_region(&view, mr, int128_zero(), |
| 570 | addrrange_make(int128_zero(), int128_2_64()), false); |
| 571 | } |
Avi Kivity | 3d8e6bf | 2011-07-26 14:26:03 +0300 | [diff] [blame] | 572 | flatview_simplify(&view); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 573 | |
| 574 | return view; |
| 575 | } |
| 576 | |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 577 | static void address_space_add_del_ioeventfds(AddressSpace *as, |
| 578 | MemoryRegionIoeventfd *fds_new, |
| 579 | unsigned fds_new_nb, |
| 580 | MemoryRegionIoeventfd *fds_old, |
| 581 | unsigned fds_old_nb) |
| 582 | { |
| 583 | unsigned iold, inew; |
Avi Kivity | 80a1ea3 | 2012-02-08 16:39:06 +0200 | [diff] [blame] | 584 | MemoryRegionIoeventfd *fd; |
| 585 | MemoryRegionSection section; |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 586 | |
| 587 | /* Generate a symmetric difference of the old and new fd sets, adding |
| 588 | * and deleting as necessary. |
| 589 | */ |
| 590 | |
| 591 | iold = inew = 0; |
| 592 | while (iold < fds_old_nb || inew < fds_new_nb) { |
| 593 | if (iold < fds_old_nb |
| 594 | && (inew == fds_new_nb |
| 595 | || memory_region_ioeventfd_before(fds_old[iold], |
| 596 | fds_new[inew]))) { |
Avi Kivity | 80a1ea3 | 2012-02-08 16:39:06 +0200 | [diff] [blame] | 597 | fd = &fds_old[iold]; |
| 598 | section = (MemoryRegionSection) { |
Avi Kivity | f6790af | 2012-10-02 20:13:51 +0200 | [diff] [blame] | 599 | .address_space = as, |
Avi Kivity | 80a1ea3 | 2012-02-08 16:39:06 +0200 | [diff] [blame] | 600 | .offset_within_address_space = int128_get64(fd->addr.start), |
| 601 | .size = int128_get64(fd->addr.size), |
| 602 | }; |
| 603 | MEMORY_LISTENER_CALL(eventfd_del, Forward, §ion, |
Paolo Bonzini | 753d5e1 | 2012-07-05 17:16:27 +0200 | [diff] [blame] | 604 | fd->match_data, fd->data, fd->e); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 605 | ++iold; |
| 606 | } else if (inew < fds_new_nb |
| 607 | && (iold == fds_old_nb |
| 608 | || memory_region_ioeventfd_before(fds_new[inew], |
| 609 | fds_old[iold]))) { |
Avi Kivity | 80a1ea3 | 2012-02-08 16:39:06 +0200 | [diff] [blame] | 610 | fd = &fds_new[inew]; |
| 611 | section = (MemoryRegionSection) { |
Avi Kivity | f6790af | 2012-10-02 20:13:51 +0200 | [diff] [blame] | 612 | .address_space = as, |
Avi Kivity | 80a1ea3 | 2012-02-08 16:39:06 +0200 | [diff] [blame] | 613 | .offset_within_address_space = int128_get64(fd->addr.start), |
| 614 | .size = int128_get64(fd->addr.size), |
| 615 | }; |
| 616 | MEMORY_LISTENER_CALL(eventfd_add, Reverse, §ion, |
Paolo Bonzini | 753d5e1 | 2012-07-05 17:16:27 +0200 | [diff] [blame] | 617 | fd->match_data, fd->data, fd->e); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 618 | ++inew; |
| 619 | } else { |
| 620 | ++iold; |
| 621 | ++inew; |
| 622 | } |
| 623 | } |
| 624 | } |
| 625 | |
| 626 | static void address_space_update_ioeventfds(AddressSpace *as) |
| 627 | { |
| 628 | FlatRange *fr; |
| 629 | unsigned ioeventfd_nb = 0; |
| 630 | MemoryRegionIoeventfd *ioeventfds = NULL; |
| 631 | AddrRange tmp; |
| 632 | unsigned i; |
| 633 | |
Avi Kivity | 8786db7 | 2012-10-02 13:53:41 +0200 | [diff] [blame] | 634 | FOR_EACH_FLAT_RANGE(fr, as->current_map) { |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 635 | for (i = 0; i < fr->mr->ioeventfd_nb; ++i) { |
| 636 | tmp = addrrange_shift(fr->mr->ioeventfds[i].addr, |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 637 | int128_sub(fr->addr.start, |
| 638 | int128_make64(fr->offset_in_region))); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 639 | if (addrrange_intersects(fr->addr, tmp)) { |
| 640 | ++ioeventfd_nb; |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 641 | ioeventfds = g_realloc(ioeventfds, |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 642 | ioeventfd_nb * sizeof(*ioeventfds)); |
| 643 | ioeventfds[ioeventfd_nb-1] = fr->mr->ioeventfds[i]; |
| 644 | ioeventfds[ioeventfd_nb-1].addr = tmp; |
| 645 | } |
| 646 | } |
| 647 | } |
| 648 | |
| 649 | address_space_add_del_ioeventfds(as, ioeventfds, ioeventfd_nb, |
| 650 | as->ioeventfds, as->ioeventfd_nb); |
| 651 | |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 652 | g_free(as->ioeventfds); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 653 | as->ioeventfds = ioeventfds; |
| 654 | as->ioeventfd_nb = ioeventfd_nb; |
| 655 | } |
| 656 | |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 657 | static void address_space_update_topology_pass(AddressSpace *as, |
| 658 | FlatView old_view, |
| 659 | FlatView new_view, |
| 660 | bool adding) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 661 | { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 662 | unsigned iold, inew; |
| 663 | FlatRange *frold, *frnew; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 664 | |
| 665 | /* Generate a symmetric difference of the old and new memory maps. |
| 666 | * Kill ranges in the old map, and instantiate ranges in the new map. |
| 667 | */ |
| 668 | iold = inew = 0; |
| 669 | while (iold < old_view.nr || inew < new_view.nr) { |
| 670 | if (iold < old_view.nr) { |
| 671 | frold = &old_view.ranges[iold]; |
| 672 | } else { |
| 673 | frold = NULL; |
| 674 | } |
| 675 | if (inew < new_view.nr) { |
| 676 | frnew = &new_view.ranges[inew]; |
| 677 | } else { |
| 678 | frnew = NULL; |
| 679 | } |
| 680 | |
| 681 | if (frold |
| 682 | && (!frnew |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 683 | || int128_lt(frold->addr.start, frnew->addr.start) |
| 684 | || (int128_eq(frold->addr.start, frnew->addr.start) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 685 | && !flatrange_equal(frold, frnew)))) { |
| 686 | /* In old, but (not in new, or in new but attributes changed). */ |
| 687 | |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 688 | if (!adding) { |
Avi Kivity | 72e22d2 | 2012-02-08 15:05:50 +0200 | [diff] [blame] | 689 | MEMORY_LISTENER_UPDATE_REGION(frold, as, Reverse, region_del); |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 690 | } |
| 691 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 692 | ++iold; |
| 693 | } else if (frold && frnew && flatrange_equal(frold, frnew)) { |
| 694 | /* In both (logging may have changed) */ |
| 695 | |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 696 | if (adding) { |
Avi Kivity | 50c1e14 | 2012-02-08 21:36:02 +0200 | [diff] [blame] | 697 | MEMORY_LISTENER_UPDATE_REGION(frnew, as, Forward, region_nop); |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 698 | if (frold->dirty_log_mask && !frnew->dirty_log_mask) { |
Avi Kivity | 72e22d2 | 2012-02-08 15:05:50 +0200 | [diff] [blame] | 699 | MEMORY_LISTENER_UPDATE_REGION(frnew, as, Reverse, log_stop); |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 700 | } else if (frnew->dirty_log_mask && !frold->dirty_log_mask) { |
Avi Kivity | 72e22d2 | 2012-02-08 15:05:50 +0200 | [diff] [blame] | 701 | MEMORY_LISTENER_UPDATE_REGION(frnew, as, Forward, log_start); |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 702 | } |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 703 | } |
| 704 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 705 | ++iold; |
| 706 | ++inew; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 707 | } else { |
| 708 | /* In new */ |
| 709 | |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 710 | if (adding) { |
Avi Kivity | 72e22d2 | 2012-02-08 15:05:50 +0200 | [diff] [blame] | 711 | MEMORY_LISTENER_UPDATE_REGION(frnew, as, Forward, region_add); |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 712 | } |
| 713 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 714 | ++inew; |
| 715 | } |
| 716 | } |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 717 | } |
| 718 | |
| 719 | |
| 720 | static void address_space_update_topology(AddressSpace *as) |
| 721 | { |
Avi Kivity | 8786db7 | 2012-10-02 13:53:41 +0200 | [diff] [blame] | 722 | FlatView old_view = *as->current_map; |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 723 | FlatView new_view = generate_memory_topology(as->root); |
| 724 | |
| 725 | address_space_update_topology_pass(as, old_view, new_view, false); |
| 726 | address_space_update_topology_pass(as, old_view, new_view, true); |
| 727 | |
Avi Kivity | 8786db7 | 2012-10-02 13:53:41 +0200 | [diff] [blame] | 728 | *as->current_map = new_view; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 729 | flatview_destroy(&old_view); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 730 | address_space_update_ioeventfds(as); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 731 | } |
| 732 | |
Avi Kivity | 4ef4db8 | 2011-07-26 14:26:13 +0300 | [diff] [blame] | 733 | void memory_region_transaction_begin(void) |
| 734 | { |
Jan Kiszka | bb880de | 2012-08-23 13:02:32 +0200 | [diff] [blame] | 735 | qemu_flush_coalesced_mmio_buffer(); |
Avi Kivity | 4ef4db8 | 2011-07-26 14:26:13 +0300 | [diff] [blame] | 736 | ++memory_region_transaction_depth; |
| 737 | } |
| 738 | |
| 739 | void memory_region_transaction_commit(void) |
| 740 | { |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 741 | AddressSpace *as; |
| 742 | |
Avi Kivity | 4ef4db8 | 2011-07-26 14:26:13 +0300 | [diff] [blame] | 743 | assert(memory_region_transaction_depth); |
| 744 | --memory_region_transaction_depth; |
Jan Kiszka | 22bde71 | 2012-11-05 16:45:56 +0100 | [diff] [blame] | 745 | if (!memory_region_transaction_depth && memory_region_update_pending) { |
| 746 | memory_region_update_pending = false; |
Jan Kiszka | 02e2b95 | 2012-08-23 13:02:31 +0200 | [diff] [blame] | 747 | MEMORY_LISTENER_CALL_GLOBAL(begin, Forward); |
| 748 | |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 749 | QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) { |
| 750 | address_space_update_topology(as); |
Jan Kiszka | 02e2b95 | 2012-08-23 13:02:31 +0200 | [diff] [blame] | 751 | } |
| 752 | |
| 753 | MEMORY_LISTENER_CALL_GLOBAL(commit, Forward); |
Avi Kivity | e87c099 | 2011-09-14 12:16:20 +0300 | [diff] [blame] | 754 | } |
Avi Kivity | 4ef4db8 | 2011-07-26 14:26:13 +0300 | [diff] [blame] | 755 | } |
| 756 | |
Avi Kivity | 545e92e | 2011-08-08 19:58:48 +0300 | [diff] [blame] | 757 | static void memory_region_destructor_none(MemoryRegion *mr) |
| 758 | { |
| 759 | } |
| 760 | |
| 761 | static void memory_region_destructor_ram(MemoryRegion *mr) |
| 762 | { |
| 763 | qemu_ram_free(mr->ram_addr); |
| 764 | } |
| 765 | |
| 766 | static void memory_region_destructor_ram_from_ptr(MemoryRegion *mr) |
| 767 | { |
| 768 | qemu_ram_free_from_ptr(mr->ram_addr); |
| 769 | } |
| 770 | |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 771 | static void memory_region_destructor_rom_device(MemoryRegion *mr) |
| 772 | { |
| 773 | qemu_ram_free(mr->ram_addr & TARGET_PAGE_MASK); |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 774 | } |
| 775 | |
Avi Kivity | be675c9 | 2011-11-20 16:22:55 +0200 | [diff] [blame] | 776 | static bool memory_region_wrong_endianness(MemoryRegion *mr) |
| 777 | { |
Andreas Färber | 2c3579a | 2012-01-07 09:45:14 +0100 | [diff] [blame] | 778 | #ifdef TARGET_WORDS_BIGENDIAN |
Avi Kivity | be675c9 | 2011-11-20 16:22:55 +0200 | [diff] [blame] | 779 | return mr->ops->endianness == DEVICE_LITTLE_ENDIAN; |
| 780 | #else |
| 781 | return mr->ops->endianness == DEVICE_BIG_ENDIAN; |
| 782 | #endif |
| 783 | } |
| 784 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 785 | void memory_region_init(MemoryRegion *mr, |
| 786 | const char *name, |
| 787 | uint64_t size) |
| 788 | { |
| 789 | mr->ops = NULL; |
| 790 | mr->parent = NULL; |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 791 | mr->size = int128_make64(size); |
| 792 | if (size == UINT64_MAX) { |
| 793 | mr->size = int128_2_64(); |
| 794 | } |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 795 | mr->addr = 0; |
Avi Kivity | b3b00c7 | 2012-01-02 13:20:11 +0200 | [diff] [blame] | 796 | mr->subpage = false; |
Avi Kivity | 6bba19b | 2011-09-14 11:54:58 +0300 | [diff] [blame] | 797 | mr->enabled = true; |
Avi Kivity | 14a3c10 | 2011-07-26 14:26:06 +0300 | [diff] [blame] | 798 | mr->terminates = false; |
Avi Kivity | 8ea9252 | 2011-12-08 15:58:43 +0200 | [diff] [blame] | 799 | mr->ram = false; |
Jan Kiszka | 5f9a5ea | 2013-05-07 19:04:25 +0200 | [diff] [blame] | 800 | mr->romd_mode = true; |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 801 | mr->readonly = false; |
Avi Kivity | 75c578d | 2012-01-02 15:40:52 +0200 | [diff] [blame] | 802 | mr->rom_device = false; |
Avi Kivity | 545e92e | 2011-08-08 19:58:48 +0300 | [diff] [blame] | 803 | mr->destructor = memory_region_destructor_none; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 804 | mr->priority = 0; |
| 805 | mr->may_overlap = false; |
| 806 | mr->alias = NULL; |
| 807 | QTAILQ_INIT(&mr->subregions); |
| 808 | memset(&mr->subregions_link, 0, sizeof mr->subregions_link); |
| 809 | QTAILQ_INIT(&mr->coalesced); |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 810 | mr->name = g_strdup(name); |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 811 | mr->dirty_log_mask = 0; |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 812 | mr->ioeventfd_nb = 0; |
| 813 | mr->ioeventfds = NULL; |
Jan Kiszka | d410515 | 2012-08-23 13:02:29 +0200 | [diff] [blame] | 814 | mr->flush_coalesced_mmio = false; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 815 | } |
| 816 | |
| 817 | static bool memory_region_access_valid(MemoryRegion *mr, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 818 | hwaddr addr, |
Avi Kivity | 897fa7c | 2011-11-13 13:05:27 +0200 | [diff] [blame] | 819 | unsigned size, |
| 820 | bool is_write) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 821 | { |
Avi Kivity | 897fa7c | 2011-11-13 13:05:27 +0200 | [diff] [blame] | 822 | if (mr->ops->valid.accepts |
| 823 | && !mr->ops->valid.accepts(mr->opaque, addr, size, is_write)) { |
| 824 | return false; |
| 825 | } |
| 826 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 827 | if (!mr->ops->valid.unaligned && (addr & (size - 1))) { |
| 828 | return false; |
| 829 | } |
| 830 | |
| 831 | /* Treat zero as compatibility all valid */ |
| 832 | if (!mr->ops->valid.max_access_size) { |
| 833 | return true; |
| 834 | } |
| 835 | |
| 836 | if (size > mr->ops->valid.max_access_size |
| 837 | || size < mr->ops->valid.min_access_size) { |
| 838 | return false; |
| 839 | } |
| 840 | return true; |
| 841 | } |
| 842 | |
Avi Kivity | a621f38 | 2012-01-02 13:12:08 +0200 | [diff] [blame] | 843 | static uint64_t memory_region_dispatch_read1(MemoryRegion *mr, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 844 | hwaddr addr, |
Avi Kivity | a621f38 | 2012-01-02 13:12:08 +0200 | [diff] [blame] | 845 | unsigned size) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 846 | { |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 847 | uint64_t data = 0; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 848 | |
Avi Kivity | 897fa7c | 2011-11-13 13:05:27 +0200 | [diff] [blame] | 849 | if (!memory_region_access_valid(mr, addr, size, false)) { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 850 | return -1U; /* FIXME: better signalling */ |
| 851 | } |
| 852 | |
Avi Kivity | 74901c3 | 2011-07-26 14:26:10 +0300 | [diff] [blame] | 853 | if (!mr->ops->read) { |
Richard Henderson | 5bbf90b | 2013-02-13 17:47:38 -0800 | [diff] [blame] | 854 | return mr->ops->old_mmio.read[ctz32(size)](mr->opaque, addr); |
Avi Kivity | 74901c3 | 2011-07-26 14:26:10 +0300 | [diff] [blame] | 855 | } |
| 856 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 857 | /* FIXME: support unaligned access */ |
Avi Kivity | 2b50aa1 | 2012-01-08 19:51:35 +0200 | [diff] [blame] | 858 | access_with_adjusted_size(addr, &data, size, |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 859 | mr->ops->impl.min_access_size, |
| 860 | mr->ops->impl.max_access_size, |
| 861 | memory_region_read_accessor, mr); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 862 | |
| 863 | return data; |
| 864 | } |
| 865 | |
Avi Kivity | a621f38 | 2012-01-02 13:12:08 +0200 | [diff] [blame] | 866 | static void adjust_endianness(MemoryRegion *mr, uint64_t *data, unsigned size) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 867 | { |
Avi Kivity | a621f38 | 2012-01-02 13:12:08 +0200 | [diff] [blame] | 868 | if (memory_region_wrong_endianness(mr)) { |
| 869 | switch (size) { |
| 870 | case 1: |
| 871 | break; |
| 872 | case 2: |
| 873 | *data = bswap16(*data); |
| 874 | break; |
| 875 | case 4: |
| 876 | *data = bswap32(*data); |
Andreas Färber | 1470a0c | 2012-01-07 09:45:15 +0100 | [diff] [blame] | 877 | break; |
Avi Kivity | a621f38 | 2012-01-02 13:12:08 +0200 | [diff] [blame] | 878 | default: |
| 879 | abort(); |
| 880 | } |
| 881 | } |
| 882 | } |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 883 | |
Avi Kivity | a621f38 | 2012-01-02 13:12:08 +0200 | [diff] [blame] | 884 | static uint64_t memory_region_dispatch_read(MemoryRegion *mr, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 885 | hwaddr addr, |
Avi Kivity | a621f38 | 2012-01-02 13:12:08 +0200 | [diff] [blame] | 886 | unsigned size) |
| 887 | { |
| 888 | uint64_t ret; |
| 889 | |
| 890 | ret = memory_region_dispatch_read1(mr, addr, size); |
| 891 | adjust_endianness(mr, &ret, size); |
| 892 | return ret; |
| 893 | } |
| 894 | |
| 895 | static void memory_region_dispatch_write(MemoryRegion *mr, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 896 | hwaddr addr, |
Avi Kivity | a621f38 | 2012-01-02 13:12:08 +0200 | [diff] [blame] | 897 | uint64_t data, |
| 898 | unsigned size) |
| 899 | { |
Avi Kivity | 897fa7c | 2011-11-13 13:05:27 +0200 | [diff] [blame] | 900 | if (!memory_region_access_valid(mr, addr, size, true)) { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 901 | return; /* FIXME: better signalling */ |
| 902 | } |
| 903 | |
Avi Kivity | a621f38 | 2012-01-02 13:12:08 +0200 | [diff] [blame] | 904 | adjust_endianness(mr, &data, size); |
| 905 | |
Avi Kivity | 74901c3 | 2011-07-26 14:26:10 +0300 | [diff] [blame] | 906 | if (!mr->ops->write) { |
Richard Henderson | 5bbf90b | 2013-02-13 17:47:38 -0800 | [diff] [blame] | 907 | mr->ops->old_mmio.write[ctz32(size)](mr->opaque, addr, data); |
Avi Kivity | 74901c3 | 2011-07-26 14:26:10 +0300 | [diff] [blame] | 908 | return; |
| 909 | } |
| 910 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 911 | /* FIXME: support unaligned access */ |
Avi Kivity | 2b50aa1 | 2012-01-08 19:51:35 +0200 | [diff] [blame] | 912 | access_with_adjusted_size(addr, &data, size, |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 913 | mr->ops->impl.min_access_size, |
| 914 | mr->ops->impl.max_access_size, |
| 915 | memory_region_write_accessor, mr); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 916 | } |
| 917 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 918 | void memory_region_init_io(MemoryRegion *mr, |
| 919 | const MemoryRegionOps *ops, |
| 920 | void *opaque, |
| 921 | const char *name, |
| 922 | uint64_t size) |
| 923 | { |
| 924 | memory_region_init(mr, name, size); |
| 925 | mr->ops = ops; |
| 926 | mr->opaque = opaque; |
Avi Kivity | 14a3c10 | 2011-07-26 14:26:06 +0300 | [diff] [blame] | 927 | mr->terminates = true; |
Avi Kivity | 97161e1 | 2012-03-08 19:16:39 +0200 | [diff] [blame] | 928 | mr->ram_addr = ~(ram_addr_t)0; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 929 | } |
| 930 | |
| 931 | void memory_region_init_ram(MemoryRegion *mr, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 932 | const char *name, |
| 933 | uint64_t size) |
| 934 | { |
| 935 | memory_region_init(mr, name, size); |
Avi Kivity | 8ea9252 | 2011-12-08 15:58:43 +0200 | [diff] [blame] | 936 | mr->ram = true; |
Avi Kivity | 14a3c10 | 2011-07-26 14:26:06 +0300 | [diff] [blame] | 937 | mr->terminates = true; |
Avi Kivity | 545e92e | 2011-08-08 19:58:48 +0300 | [diff] [blame] | 938 | mr->destructor = memory_region_destructor_ram; |
Avi Kivity | c5705a7 | 2011-12-20 15:59:12 +0200 | [diff] [blame] | 939 | mr->ram_addr = qemu_ram_alloc(size, mr); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 940 | } |
| 941 | |
| 942 | void memory_region_init_ram_ptr(MemoryRegion *mr, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 943 | const char *name, |
| 944 | uint64_t size, |
| 945 | void *ptr) |
| 946 | { |
| 947 | memory_region_init(mr, name, size); |
Avi Kivity | 8ea9252 | 2011-12-08 15:58:43 +0200 | [diff] [blame] | 948 | mr->ram = true; |
Avi Kivity | 14a3c10 | 2011-07-26 14:26:06 +0300 | [diff] [blame] | 949 | mr->terminates = true; |
Avi Kivity | 545e92e | 2011-08-08 19:58:48 +0300 | [diff] [blame] | 950 | mr->destructor = memory_region_destructor_ram_from_ptr; |
Avi Kivity | c5705a7 | 2011-12-20 15:59:12 +0200 | [diff] [blame] | 951 | mr->ram_addr = qemu_ram_alloc_from_ptr(size, ptr, mr); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 952 | } |
| 953 | |
| 954 | void memory_region_init_alias(MemoryRegion *mr, |
| 955 | const char *name, |
| 956 | MemoryRegion *orig, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 957 | hwaddr offset, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 958 | uint64_t size) |
| 959 | { |
| 960 | memory_region_init(mr, name, size); |
| 961 | mr->alias = orig; |
| 962 | mr->alias_offset = offset; |
| 963 | } |
| 964 | |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 965 | void memory_region_init_rom_device(MemoryRegion *mr, |
| 966 | const MemoryRegionOps *ops, |
Avi Kivity | 75f5941 | 2011-08-26 00:35:15 +0300 | [diff] [blame] | 967 | void *opaque, |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 968 | const char *name, |
| 969 | uint64_t size) |
| 970 | { |
| 971 | memory_region_init(mr, name, size); |
Avi Kivity | 7bc2b9c | 2011-08-25 14:56:14 +0300 | [diff] [blame] | 972 | mr->ops = ops; |
Avi Kivity | 75f5941 | 2011-08-26 00:35:15 +0300 | [diff] [blame] | 973 | mr->opaque = opaque; |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 974 | mr->terminates = true; |
Avi Kivity | 75c578d | 2012-01-02 15:40:52 +0200 | [diff] [blame] | 975 | mr->rom_device = true; |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 976 | mr->destructor = memory_region_destructor_rom_device; |
Avi Kivity | c5705a7 | 2011-12-20 15:59:12 +0200 | [diff] [blame] | 977 | mr->ram_addr = qemu_ram_alloc(size, mr); |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 978 | } |
| 979 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 980 | static uint64_t invalid_read(void *opaque, hwaddr addr, |
Jan Kiszka | 1660e72 | 2011-10-23 16:01:19 +0200 | [diff] [blame] | 981 | unsigned size) |
| 982 | { |
| 983 | MemoryRegion *mr = opaque; |
| 984 | |
| 985 | if (!mr->warning_printed) { |
| 986 | fprintf(stderr, "Invalid read from memory region %s\n", mr->name); |
| 987 | mr->warning_printed = true; |
| 988 | } |
| 989 | return -1U; |
| 990 | } |
| 991 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 992 | static void invalid_write(void *opaque, hwaddr addr, uint64_t data, |
Jan Kiszka | 1660e72 | 2011-10-23 16:01:19 +0200 | [diff] [blame] | 993 | unsigned size) |
| 994 | { |
| 995 | MemoryRegion *mr = opaque; |
| 996 | |
| 997 | if (!mr->warning_printed) { |
| 998 | fprintf(stderr, "Invalid write to memory region %s\n", mr->name); |
| 999 | mr->warning_printed = true; |
| 1000 | } |
| 1001 | } |
| 1002 | |
| 1003 | static const MemoryRegionOps reservation_ops = { |
| 1004 | .read = invalid_read, |
| 1005 | .write = invalid_write, |
| 1006 | .endianness = DEVICE_NATIVE_ENDIAN, |
| 1007 | }; |
| 1008 | |
| 1009 | void memory_region_init_reservation(MemoryRegion *mr, |
| 1010 | const char *name, |
| 1011 | uint64_t size) |
| 1012 | { |
| 1013 | memory_region_init_io(mr, &reservation_ops, mr, name, size); |
| 1014 | } |
| 1015 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1016 | void memory_region_destroy(MemoryRegion *mr) |
| 1017 | { |
| 1018 | assert(QTAILQ_EMPTY(&mr->subregions)); |
Avi Kivity | 2be0e25 | 2012-10-17 17:14:41 +0200 | [diff] [blame] | 1019 | assert(memory_region_transaction_depth == 0); |
Avi Kivity | 545e92e | 2011-08-08 19:58:48 +0300 | [diff] [blame] | 1020 | mr->destructor(mr); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1021 | memory_region_clear_coalescing(mr); |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1022 | g_free((char *)mr->name); |
| 1023 | g_free(mr->ioeventfds); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1024 | } |
| 1025 | |
| 1026 | uint64_t memory_region_size(MemoryRegion *mr) |
| 1027 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1028 | if (int128_eq(mr->size, int128_2_64())) { |
| 1029 | return UINT64_MAX; |
| 1030 | } |
| 1031 | return int128_get64(mr->size); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1032 | } |
| 1033 | |
Avi Kivity | 8991c79 | 2011-12-20 15:53:11 +0200 | [diff] [blame] | 1034 | const char *memory_region_name(MemoryRegion *mr) |
| 1035 | { |
| 1036 | return mr->name; |
| 1037 | } |
| 1038 | |
Avi Kivity | 8ea9252 | 2011-12-08 15:58:43 +0200 | [diff] [blame] | 1039 | bool memory_region_is_ram(MemoryRegion *mr) |
| 1040 | { |
| 1041 | return mr->ram; |
| 1042 | } |
| 1043 | |
Avi Kivity | 55043ba | 2011-12-15 17:20:34 +0200 | [diff] [blame] | 1044 | bool memory_region_is_logging(MemoryRegion *mr) |
| 1045 | { |
| 1046 | return mr->dirty_log_mask; |
| 1047 | } |
| 1048 | |
Avi Kivity | ce7923d | 2011-12-08 16:05:11 +0200 | [diff] [blame] | 1049 | bool memory_region_is_rom(MemoryRegion *mr) |
| 1050 | { |
| 1051 | return mr->ram && mr->readonly; |
| 1052 | } |
| 1053 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1054 | void memory_region_set_log(MemoryRegion *mr, bool log, unsigned client) |
| 1055 | { |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 1056 | uint8_t mask = 1 << client; |
| 1057 | |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1058 | memory_region_transaction_begin(); |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 1059 | mr->dirty_log_mask = (mr->dirty_log_mask & ~mask) | (log * mask); |
Jan Kiszka | 22bde71 | 2012-11-05 16:45:56 +0100 | [diff] [blame] | 1060 | memory_region_update_pending |= mr->enabled; |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1061 | memory_region_transaction_commit(); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1062 | } |
| 1063 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1064 | bool memory_region_get_dirty(MemoryRegion *mr, hwaddr addr, |
| 1065 | hwaddr size, unsigned client) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1066 | { |
Avi Kivity | 14a3c10 | 2011-07-26 14:26:06 +0300 | [diff] [blame] | 1067 | assert(mr->terminates); |
Blue Swirl | cd7a45c | 2012-01-22 16:38:21 +0000 | [diff] [blame] | 1068 | return cpu_physical_memory_get_dirty(mr->ram_addr + addr, size, |
| 1069 | 1 << client); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1070 | } |
| 1071 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1072 | void memory_region_set_dirty(MemoryRegion *mr, hwaddr addr, |
| 1073 | hwaddr size) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1074 | { |
Avi Kivity | 14a3c10 | 2011-07-26 14:26:06 +0300 | [diff] [blame] | 1075 | assert(mr->terminates); |
Blue Swirl | fd4aa97 | 2011-10-16 16:04:59 +0000 | [diff] [blame] | 1076 | return cpu_physical_memory_set_dirty_range(mr->ram_addr + addr, size, -1); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1077 | } |
| 1078 | |
Juan Quintela | 6c279db | 2012-10-17 20:24:28 +0200 | [diff] [blame] | 1079 | bool memory_region_test_and_clear_dirty(MemoryRegion *mr, hwaddr addr, |
| 1080 | hwaddr size, unsigned client) |
| 1081 | { |
| 1082 | bool ret; |
| 1083 | assert(mr->terminates); |
| 1084 | ret = cpu_physical_memory_get_dirty(mr->ram_addr + addr, size, |
| 1085 | 1 << client); |
| 1086 | if (ret) { |
| 1087 | cpu_physical_memory_reset_dirty(mr->ram_addr + addr, |
| 1088 | mr->ram_addr + addr + size, |
| 1089 | 1 << client); |
| 1090 | } |
| 1091 | return ret; |
| 1092 | } |
| 1093 | |
| 1094 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1095 | void memory_region_sync_dirty_bitmap(MemoryRegion *mr) |
| 1096 | { |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 1097 | AddressSpace *as; |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 1098 | FlatRange *fr; |
| 1099 | |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 1100 | QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) { |
| 1101 | FOR_EACH_FLAT_RANGE(fr, as->current_map) { |
| 1102 | if (fr->mr == mr) { |
| 1103 | MEMORY_LISTENER_UPDATE_REGION(fr, as, Forward, log_sync); |
| 1104 | } |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 1105 | } |
| 1106 | } |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1107 | } |
| 1108 | |
| 1109 | void memory_region_set_readonly(MemoryRegion *mr, bool readonly) |
| 1110 | { |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 1111 | if (mr->readonly != readonly) { |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1112 | memory_region_transaction_begin(); |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 1113 | mr->readonly = readonly; |
Jan Kiszka | 22bde71 | 2012-11-05 16:45:56 +0100 | [diff] [blame] | 1114 | memory_region_update_pending |= mr->enabled; |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1115 | memory_region_transaction_commit(); |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 1116 | } |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1117 | } |
| 1118 | |
Jan Kiszka | 5f9a5ea | 2013-05-07 19:04:25 +0200 | [diff] [blame] | 1119 | void memory_region_rom_device_set_romd(MemoryRegion *mr, bool romd_mode) |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 1120 | { |
Jan Kiszka | 5f9a5ea | 2013-05-07 19:04:25 +0200 | [diff] [blame] | 1121 | if (mr->romd_mode != romd_mode) { |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1122 | memory_region_transaction_begin(); |
Jan Kiszka | 5f9a5ea | 2013-05-07 19:04:25 +0200 | [diff] [blame] | 1123 | mr->romd_mode = romd_mode; |
Jan Kiszka | 22bde71 | 2012-11-05 16:45:56 +0100 | [diff] [blame] | 1124 | memory_region_update_pending |= mr->enabled; |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1125 | memory_region_transaction_commit(); |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 1126 | } |
| 1127 | } |
| 1128 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1129 | void memory_region_reset_dirty(MemoryRegion *mr, hwaddr addr, |
| 1130 | hwaddr size, unsigned client) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1131 | { |
Avi Kivity | 14a3c10 | 2011-07-26 14:26:06 +0300 | [diff] [blame] | 1132 | assert(mr->terminates); |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 1133 | cpu_physical_memory_reset_dirty(mr->ram_addr + addr, |
| 1134 | mr->ram_addr + addr + size, |
| 1135 | 1 << client); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1136 | } |
| 1137 | |
| 1138 | void *memory_region_get_ram_ptr(MemoryRegion *mr) |
| 1139 | { |
| 1140 | if (mr->alias) { |
| 1141 | return memory_region_get_ram_ptr(mr->alias) + mr->alias_offset; |
| 1142 | } |
| 1143 | |
Avi Kivity | 14a3c10 | 2011-07-26 14:26:06 +0300 | [diff] [blame] | 1144 | assert(mr->terminates); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1145 | |
Jan Kiszka | 021d26d | 2011-08-30 00:38:24 +0200 | [diff] [blame] | 1146 | return qemu_get_ram_ptr(mr->ram_addr & TARGET_PAGE_MASK); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1147 | } |
| 1148 | |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 1149 | static void memory_region_update_coalesced_range_as(MemoryRegion *mr, AddressSpace *as) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1150 | { |
| 1151 | FlatRange *fr; |
| 1152 | CoalescedMemoryRange *cmr; |
| 1153 | AddrRange tmp; |
Avi Kivity | 95d2994 | 2012-10-02 18:21:54 +0200 | [diff] [blame] | 1154 | MemoryRegionSection section; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1155 | |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 1156 | FOR_EACH_FLAT_RANGE(fr, as->current_map) { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1157 | if (fr->mr == mr) { |
Avi Kivity | 95d2994 | 2012-10-02 18:21:54 +0200 | [diff] [blame] | 1158 | section = (MemoryRegionSection) { |
Avi Kivity | f6790af | 2012-10-02 20:13:51 +0200 | [diff] [blame] | 1159 | .address_space = as, |
Avi Kivity | 95d2994 | 2012-10-02 18:21:54 +0200 | [diff] [blame] | 1160 | .offset_within_address_space = int128_get64(fr->addr.start), |
| 1161 | .size = int128_get64(fr->addr.size), |
| 1162 | }; |
| 1163 | |
| 1164 | MEMORY_LISTENER_CALL(coalesced_mmio_del, Reverse, §ion, |
| 1165 | int128_get64(fr->addr.start), |
| 1166 | int128_get64(fr->addr.size)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1167 | QTAILQ_FOREACH(cmr, &mr->coalesced, link) { |
| 1168 | tmp = addrrange_shift(cmr->addr, |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1169 | int128_sub(fr->addr.start, |
| 1170 | int128_make64(fr->offset_in_region))); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1171 | if (!addrrange_intersects(tmp, fr->addr)) { |
| 1172 | continue; |
| 1173 | } |
| 1174 | tmp = addrrange_intersection(tmp, fr->addr); |
Avi Kivity | 95d2994 | 2012-10-02 18:21:54 +0200 | [diff] [blame] | 1175 | MEMORY_LISTENER_CALL(coalesced_mmio_add, Forward, §ion, |
| 1176 | int128_get64(tmp.start), |
| 1177 | int128_get64(tmp.size)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1178 | } |
| 1179 | } |
| 1180 | } |
| 1181 | } |
| 1182 | |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 1183 | static void memory_region_update_coalesced_range(MemoryRegion *mr) |
| 1184 | { |
| 1185 | AddressSpace *as; |
| 1186 | |
| 1187 | QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) { |
| 1188 | memory_region_update_coalesced_range_as(mr, as); |
| 1189 | } |
| 1190 | } |
| 1191 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1192 | void memory_region_set_coalescing(MemoryRegion *mr) |
| 1193 | { |
| 1194 | memory_region_clear_coalescing(mr); |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1195 | memory_region_add_coalescing(mr, 0, int128_get64(mr->size)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1196 | } |
| 1197 | |
| 1198 | void memory_region_add_coalescing(MemoryRegion *mr, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1199 | hwaddr offset, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1200 | uint64_t size) |
| 1201 | { |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1202 | CoalescedMemoryRange *cmr = g_malloc(sizeof(*cmr)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1203 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1204 | cmr->addr = addrrange_make(int128_make64(offset), int128_make64(size)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1205 | QTAILQ_INSERT_TAIL(&mr->coalesced, cmr, link); |
| 1206 | memory_region_update_coalesced_range(mr); |
Jan Kiszka | d410515 | 2012-08-23 13:02:29 +0200 | [diff] [blame] | 1207 | memory_region_set_flush_coalesced(mr); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1208 | } |
| 1209 | |
| 1210 | void memory_region_clear_coalescing(MemoryRegion *mr) |
| 1211 | { |
| 1212 | CoalescedMemoryRange *cmr; |
| 1213 | |
Jan Kiszka | d410515 | 2012-08-23 13:02:29 +0200 | [diff] [blame] | 1214 | qemu_flush_coalesced_mmio_buffer(); |
| 1215 | mr->flush_coalesced_mmio = false; |
| 1216 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1217 | while (!QTAILQ_EMPTY(&mr->coalesced)) { |
| 1218 | cmr = QTAILQ_FIRST(&mr->coalesced); |
| 1219 | QTAILQ_REMOVE(&mr->coalesced, cmr, link); |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1220 | g_free(cmr); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1221 | } |
| 1222 | memory_region_update_coalesced_range(mr); |
| 1223 | } |
| 1224 | |
Jan Kiszka | d410515 | 2012-08-23 13:02:29 +0200 | [diff] [blame] | 1225 | void memory_region_set_flush_coalesced(MemoryRegion *mr) |
| 1226 | { |
| 1227 | mr->flush_coalesced_mmio = true; |
| 1228 | } |
| 1229 | |
| 1230 | void memory_region_clear_flush_coalesced(MemoryRegion *mr) |
| 1231 | { |
| 1232 | qemu_flush_coalesced_mmio_buffer(); |
| 1233 | if (QTAILQ_EMPTY(&mr->coalesced)) { |
| 1234 | mr->flush_coalesced_mmio = false; |
| 1235 | } |
| 1236 | } |
| 1237 | |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1238 | void memory_region_add_eventfd(MemoryRegion *mr, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1239 | hwaddr addr, |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1240 | unsigned size, |
| 1241 | bool match_data, |
| 1242 | uint64_t data, |
Paolo Bonzini | 753d5e1 | 2012-07-05 17:16:27 +0200 | [diff] [blame] | 1243 | EventNotifier *e) |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1244 | { |
| 1245 | MemoryRegionIoeventfd mrfd = { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1246 | .addr.start = int128_make64(addr), |
| 1247 | .addr.size = int128_make64(size), |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1248 | .match_data = match_data, |
| 1249 | .data = data, |
Paolo Bonzini | 753d5e1 | 2012-07-05 17:16:27 +0200 | [diff] [blame] | 1250 | .e = e, |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1251 | }; |
| 1252 | unsigned i; |
| 1253 | |
Alexander Graf | 28f362b | 2012-10-15 20:30:28 +0200 | [diff] [blame] | 1254 | adjust_endianness(mr, &mrfd.data, size); |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1255 | memory_region_transaction_begin(); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1256 | for (i = 0; i < mr->ioeventfd_nb; ++i) { |
| 1257 | if (memory_region_ioeventfd_before(mrfd, mr->ioeventfds[i])) { |
| 1258 | break; |
| 1259 | } |
| 1260 | } |
| 1261 | ++mr->ioeventfd_nb; |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1262 | mr->ioeventfds = g_realloc(mr->ioeventfds, |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1263 | sizeof(*mr->ioeventfds) * mr->ioeventfd_nb); |
| 1264 | memmove(&mr->ioeventfds[i+1], &mr->ioeventfds[i], |
| 1265 | sizeof(*mr->ioeventfds) * (mr->ioeventfd_nb-1 - i)); |
| 1266 | mr->ioeventfds[i] = mrfd; |
Jan Kiszka | 22bde71 | 2012-11-05 16:45:56 +0100 | [diff] [blame] | 1267 | memory_region_update_pending |= mr->enabled; |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1268 | memory_region_transaction_commit(); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1269 | } |
| 1270 | |
| 1271 | void memory_region_del_eventfd(MemoryRegion *mr, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1272 | hwaddr addr, |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1273 | unsigned size, |
| 1274 | bool match_data, |
| 1275 | uint64_t data, |
Paolo Bonzini | 753d5e1 | 2012-07-05 17:16:27 +0200 | [diff] [blame] | 1276 | EventNotifier *e) |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1277 | { |
| 1278 | MemoryRegionIoeventfd mrfd = { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1279 | .addr.start = int128_make64(addr), |
| 1280 | .addr.size = int128_make64(size), |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1281 | .match_data = match_data, |
| 1282 | .data = data, |
Paolo Bonzini | 753d5e1 | 2012-07-05 17:16:27 +0200 | [diff] [blame] | 1283 | .e = e, |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1284 | }; |
| 1285 | unsigned i; |
| 1286 | |
Alexander Graf | 28f362b | 2012-10-15 20:30:28 +0200 | [diff] [blame] | 1287 | adjust_endianness(mr, &mrfd.data, size); |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1288 | memory_region_transaction_begin(); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1289 | for (i = 0; i < mr->ioeventfd_nb; ++i) { |
| 1290 | if (memory_region_ioeventfd_equal(mrfd, mr->ioeventfds[i])) { |
| 1291 | break; |
| 1292 | } |
| 1293 | } |
| 1294 | assert(i != mr->ioeventfd_nb); |
| 1295 | memmove(&mr->ioeventfds[i], &mr->ioeventfds[i+1], |
| 1296 | sizeof(*mr->ioeventfds) * (mr->ioeventfd_nb - (i+1))); |
| 1297 | --mr->ioeventfd_nb; |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1298 | mr->ioeventfds = g_realloc(mr->ioeventfds, |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1299 | sizeof(*mr->ioeventfds)*mr->ioeventfd_nb + 1); |
Jan Kiszka | 22bde71 | 2012-11-05 16:45:56 +0100 | [diff] [blame] | 1300 | memory_region_update_pending |= mr->enabled; |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1301 | memory_region_transaction_commit(); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1302 | } |
| 1303 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1304 | static void memory_region_add_subregion_common(MemoryRegion *mr, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1305 | hwaddr offset, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1306 | MemoryRegion *subregion) |
| 1307 | { |
| 1308 | MemoryRegion *other; |
| 1309 | |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1310 | memory_region_transaction_begin(); |
| 1311 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1312 | assert(!subregion->parent); |
| 1313 | subregion->parent = mr; |
| 1314 | subregion->addr = offset; |
| 1315 | QTAILQ_FOREACH(other, &mr->subregions, subregions_link) { |
| 1316 | if (subregion->may_overlap || other->may_overlap) { |
| 1317 | continue; |
| 1318 | } |
Hu Tao | 2c7cfd6 | 2013-03-15 14:32:01 +0800 | [diff] [blame] | 1319 | if (int128_ge(int128_make64(offset), |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1320 | int128_add(int128_make64(other->addr), other->size)) |
| 1321 | || int128_le(int128_add(int128_make64(offset), subregion->size), |
| 1322 | int128_make64(other->addr))) { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1323 | continue; |
| 1324 | } |
Anthony Liguori | a5e1cbc | 2011-08-22 11:14:56 -0500 | [diff] [blame] | 1325 | #if 0 |
Michael Walle | 860329b | 2011-09-15 23:16:49 +0200 | [diff] [blame] | 1326 | printf("warning: subregion collision %llx/%llx (%s) " |
| 1327 | "vs %llx/%llx (%s)\n", |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1328 | (unsigned long long)offset, |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1329 | (unsigned long long)int128_get64(subregion->size), |
Michael Walle | 860329b | 2011-09-15 23:16:49 +0200 | [diff] [blame] | 1330 | subregion->name, |
| 1331 | (unsigned long long)other->addr, |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1332 | (unsigned long long)int128_get64(other->size), |
Michael Walle | 860329b | 2011-09-15 23:16:49 +0200 | [diff] [blame] | 1333 | other->name); |
Anthony Liguori | a5e1cbc | 2011-08-22 11:14:56 -0500 | [diff] [blame] | 1334 | #endif |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1335 | } |
| 1336 | QTAILQ_FOREACH(other, &mr->subregions, subregions_link) { |
| 1337 | if (subregion->priority >= other->priority) { |
| 1338 | QTAILQ_INSERT_BEFORE(other, subregion, subregions_link); |
| 1339 | goto done; |
| 1340 | } |
| 1341 | } |
| 1342 | QTAILQ_INSERT_TAIL(&mr->subregions, subregion, subregions_link); |
| 1343 | done: |
Jan Kiszka | 22bde71 | 2012-11-05 16:45:56 +0100 | [diff] [blame] | 1344 | memory_region_update_pending |= mr->enabled && subregion->enabled; |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1345 | memory_region_transaction_commit(); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1346 | } |
| 1347 | |
| 1348 | |
| 1349 | void memory_region_add_subregion(MemoryRegion *mr, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1350 | hwaddr offset, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1351 | MemoryRegion *subregion) |
| 1352 | { |
| 1353 | subregion->may_overlap = false; |
| 1354 | subregion->priority = 0; |
| 1355 | memory_region_add_subregion_common(mr, offset, subregion); |
| 1356 | } |
| 1357 | |
| 1358 | void memory_region_add_subregion_overlap(MemoryRegion *mr, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1359 | hwaddr offset, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1360 | MemoryRegion *subregion, |
| 1361 | unsigned priority) |
| 1362 | { |
| 1363 | subregion->may_overlap = true; |
| 1364 | subregion->priority = priority; |
| 1365 | memory_region_add_subregion_common(mr, offset, subregion); |
| 1366 | } |
| 1367 | |
| 1368 | void memory_region_del_subregion(MemoryRegion *mr, |
| 1369 | MemoryRegion *subregion) |
| 1370 | { |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1371 | memory_region_transaction_begin(); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1372 | assert(subregion->parent == mr); |
| 1373 | subregion->parent = NULL; |
| 1374 | QTAILQ_REMOVE(&mr->subregions, subregion, subregions_link); |
Jan Kiszka | 22bde71 | 2012-11-05 16:45:56 +0100 | [diff] [blame] | 1375 | memory_region_update_pending |= mr->enabled && subregion->enabled; |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1376 | memory_region_transaction_commit(); |
Avi Kivity | 6bba19b | 2011-09-14 11:54:58 +0300 | [diff] [blame] | 1377 | } |
| 1378 | |
| 1379 | void memory_region_set_enabled(MemoryRegion *mr, bool enabled) |
| 1380 | { |
| 1381 | if (enabled == mr->enabled) { |
| 1382 | return; |
| 1383 | } |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1384 | memory_region_transaction_begin(); |
Avi Kivity | 6bba19b | 2011-09-14 11:54:58 +0300 | [diff] [blame] | 1385 | mr->enabled = enabled; |
Jan Kiszka | 22bde71 | 2012-11-05 16:45:56 +0100 | [diff] [blame] | 1386 | memory_region_update_pending = true; |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1387 | memory_region_transaction_commit(); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1388 | } |
Avi Kivity | 1c0ffa5 | 2011-07-26 14:26:04 +0300 | [diff] [blame] | 1389 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1390 | void memory_region_set_address(MemoryRegion *mr, hwaddr addr) |
Avi Kivity | 2282e1a | 2011-09-14 12:10:12 +0300 | [diff] [blame] | 1391 | { |
| 1392 | MemoryRegion *parent = mr->parent; |
| 1393 | unsigned priority = mr->priority; |
| 1394 | bool may_overlap = mr->may_overlap; |
| 1395 | |
| 1396 | if (addr == mr->addr || !parent) { |
| 1397 | mr->addr = addr; |
| 1398 | return; |
| 1399 | } |
| 1400 | |
| 1401 | memory_region_transaction_begin(); |
| 1402 | memory_region_del_subregion(parent, mr); |
| 1403 | if (may_overlap) { |
| 1404 | memory_region_add_subregion_overlap(parent, addr, mr, priority); |
| 1405 | } else { |
| 1406 | memory_region_add_subregion(parent, addr, mr); |
| 1407 | } |
| 1408 | memory_region_transaction_commit(); |
| 1409 | } |
| 1410 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1411 | void memory_region_set_alias_offset(MemoryRegion *mr, hwaddr offset) |
Avi Kivity | 4703359 | 2011-12-04 19:16:50 +0200 | [diff] [blame] | 1412 | { |
Avi Kivity | 4703359 | 2011-12-04 19:16:50 +0200 | [diff] [blame] | 1413 | assert(mr->alias); |
Avi Kivity | 4703359 | 2011-12-04 19:16:50 +0200 | [diff] [blame] | 1414 | |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1415 | if (offset == mr->alias_offset) { |
Avi Kivity | 4703359 | 2011-12-04 19:16:50 +0200 | [diff] [blame] | 1416 | return; |
| 1417 | } |
| 1418 | |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1419 | memory_region_transaction_begin(); |
| 1420 | mr->alias_offset = offset; |
Jan Kiszka | 22bde71 | 2012-11-05 16:45:56 +0100 | [diff] [blame] | 1421 | memory_region_update_pending |= mr->enabled; |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1422 | memory_region_transaction_commit(); |
Avi Kivity | 4703359 | 2011-12-04 19:16:50 +0200 | [diff] [blame] | 1423 | } |
| 1424 | |
Avi Kivity | e34911c | 2011-12-19 12:06:23 +0200 | [diff] [blame] | 1425 | ram_addr_t memory_region_get_ram_addr(MemoryRegion *mr) |
| 1426 | { |
Avi Kivity | e34911c | 2011-12-19 12:06:23 +0200 | [diff] [blame] | 1427 | return mr->ram_addr; |
| 1428 | } |
| 1429 | |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 1430 | static int cmp_flatrange_addr(const void *addr_, const void *fr_) |
| 1431 | { |
| 1432 | const AddrRange *addr = addr_; |
| 1433 | const FlatRange *fr = fr_; |
| 1434 | |
| 1435 | if (int128_le(addrrange_end(*addr), fr->addr.start)) { |
| 1436 | return -1; |
| 1437 | } else if (int128_ge(addr->start, addrrange_end(fr->addr))) { |
| 1438 | return 1; |
| 1439 | } |
| 1440 | return 0; |
| 1441 | } |
| 1442 | |
| 1443 | static FlatRange *address_space_lookup(AddressSpace *as, AddrRange addr) |
| 1444 | { |
Avi Kivity | 8786db7 | 2012-10-02 13:53:41 +0200 | [diff] [blame] | 1445 | return bsearch(&addr, as->current_map->ranges, as->current_map->nr, |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 1446 | sizeof(FlatRange), cmp_flatrange_addr); |
| 1447 | } |
| 1448 | |
Paolo Bonzini | 73034e9 | 2013-05-07 15:48:28 +0200 | [diff] [blame] | 1449 | MemoryRegionSection memory_region_find(MemoryRegion *mr, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1450 | hwaddr addr, uint64_t size) |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 1451 | { |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 1452 | MemoryRegionSection ret = { .mr = NULL, .size = 0 }; |
Paolo Bonzini | 73034e9 | 2013-05-07 15:48:28 +0200 | [diff] [blame] | 1453 | MemoryRegion *root; |
| 1454 | AddressSpace *as; |
| 1455 | AddrRange range; |
| 1456 | FlatRange *fr; |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 1457 | |
Paolo Bonzini | 73034e9 | 2013-05-07 15:48:28 +0200 | [diff] [blame] | 1458 | addr += mr->addr; |
| 1459 | for (root = mr; root->parent; ) { |
| 1460 | root = root->parent; |
| 1461 | addr += root->addr; |
| 1462 | } |
| 1463 | |
| 1464 | as = memory_region_to_address_space(root); |
| 1465 | range = addrrange_make(int128_make64(addr), int128_make64(size)); |
| 1466 | fr = address_space_lookup(as, range); |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 1467 | if (!fr) { |
| 1468 | return ret; |
| 1469 | } |
| 1470 | |
Avi Kivity | 8786db7 | 2012-10-02 13:53:41 +0200 | [diff] [blame] | 1471 | while (fr > as->current_map->ranges |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 1472 | && addrrange_intersects(fr[-1].addr, range)) { |
| 1473 | --fr; |
| 1474 | } |
| 1475 | |
| 1476 | ret.mr = fr->mr; |
Paolo Bonzini | 73034e9 | 2013-05-07 15:48:28 +0200 | [diff] [blame] | 1477 | ret.address_space = as; |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 1478 | range = addrrange_intersection(range, fr->addr); |
| 1479 | ret.offset_within_region = fr->offset_in_region; |
| 1480 | ret.offset_within_region += int128_get64(int128_sub(range.start, |
| 1481 | fr->addr.start)); |
| 1482 | ret.size = int128_get64(range.size); |
| 1483 | ret.offset_within_address_space = int128_get64(range.start); |
Avi Kivity | 7a8499e | 2012-02-08 17:01:23 +0200 | [diff] [blame] | 1484 | ret.readonly = fr->readonly; |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 1485 | return ret; |
| 1486 | } |
| 1487 | |
Paolo Bonzini | 1d67136 | 2013-04-24 10:46:55 +0200 | [diff] [blame^] | 1488 | void address_space_sync_dirty_bitmap(AddressSpace *as) |
Avi Kivity | 86e775c | 2011-12-15 16:24:49 +0200 | [diff] [blame] | 1489 | { |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 1490 | FlatRange *fr; |
| 1491 | |
Avi Kivity | 8786db7 | 2012-10-02 13:53:41 +0200 | [diff] [blame] | 1492 | FOR_EACH_FLAT_RANGE(fr, as->current_map) { |
Avi Kivity | 72e22d2 | 2012-02-08 15:05:50 +0200 | [diff] [blame] | 1493 | MEMORY_LISTENER_UPDATE_REGION(fr, as, Forward, log_sync); |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 1494 | } |
| 1495 | } |
| 1496 | |
| 1497 | void memory_global_dirty_log_start(void) |
| 1498 | { |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 1499 | global_dirty_log = true; |
Avi Kivity | 7376e58 | 2012-02-08 21:05:17 +0200 | [diff] [blame] | 1500 | MEMORY_LISTENER_CALL_GLOBAL(log_global_start, Forward); |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 1501 | } |
| 1502 | |
| 1503 | void memory_global_dirty_log_stop(void) |
| 1504 | { |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 1505 | global_dirty_log = false; |
Avi Kivity | 7376e58 | 2012-02-08 21:05:17 +0200 | [diff] [blame] | 1506 | MEMORY_LISTENER_CALL_GLOBAL(log_global_stop, Reverse); |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 1507 | } |
| 1508 | |
| 1509 | static void listener_add_address_space(MemoryListener *listener, |
| 1510 | AddressSpace *as) |
| 1511 | { |
| 1512 | FlatRange *fr; |
| 1513 | |
Julien Grall | 221b3a3 | 2012-04-04 15:15:41 +0100 | [diff] [blame] | 1514 | if (listener->address_space_filter |
Avi Kivity | f6790af | 2012-10-02 20:13:51 +0200 | [diff] [blame] | 1515 | && listener->address_space_filter != as) { |
Julien Grall | 221b3a3 | 2012-04-04 15:15:41 +0100 | [diff] [blame] | 1516 | return; |
| 1517 | } |
| 1518 | |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 1519 | if (global_dirty_log) { |
Avi Kivity | 975aefe | 2012-10-02 16:39:57 +0200 | [diff] [blame] | 1520 | if (listener->log_global_start) { |
| 1521 | listener->log_global_start(listener); |
| 1522 | } |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 1523 | } |
Avi Kivity | 975aefe | 2012-10-02 16:39:57 +0200 | [diff] [blame] | 1524 | |
Avi Kivity | 8786db7 | 2012-10-02 13:53:41 +0200 | [diff] [blame] | 1525 | FOR_EACH_FLAT_RANGE(fr, as->current_map) { |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 1526 | MemoryRegionSection section = { |
| 1527 | .mr = fr->mr, |
Avi Kivity | f6790af | 2012-10-02 20:13:51 +0200 | [diff] [blame] | 1528 | .address_space = as, |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 1529 | .offset_within_region = fr->offset_in_region, |
| 1530 | .size = int128_get64(fr->addr.size), |
| 1531 | .offset_within_address_space = int128_get64(fr->addr.start), |
Avi Kivity | 7a8499e | 2012-02-08 17:01:23 +0200 | [diff] [blame] | 1532 | .readonly = fr->readonly, |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 1533 | }; |
Avi Kivity | 975aefe | 2012-10-02 16:39:57 +0200 | [diff] [blame] | 1534 | if (listener->region_add) { |
| 1535 | listener->region_add(listener, §ion); |
| 1536 | } |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 1537 | } |
| 1538 | } |
| 1539 | |
Avi Kivity | f6790af | 2012-10-02 20:13:51 +0200 | [diff] [blame] | 1540 | void memory_listener_register(MemoryListener *listener, AddressSpace *filter) |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 1541 | { |
Avi Kivity | 72e22d2 | 2012-02-08 15:05:50 +0200 | [diff] [blame] | 1542 | MemoryListener *other = NULL; |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 1543 | AddressSpace *as; |
Avi Kivity | 72e22d2 | 2012-02-08 15:05:50 +0200 | [diff] [blame] | 1544 | |
Avi Kivity | 7376e58 | 2012-02-08 21:05:17 +0200 | [diff] [blame] | 1545 | listener->address_space_filter = filter; |
Avi Kivity | 72e22d2 | 2012-02-08 15:05:50 +0200 | [diff] [blame] | 1546 | if (QTAILQ_EMPTY(&memory_listeners) |
| 1547 | || listener->priority >= QTAILQ_LAST(&memory_listeners, |
| 1548 | memory_listeners)->priority) { |
| 1549 | QTAILQ_INSERT_TAIL(&memory_listeners, listener, link); |
| 1550 | } else { |
| 1551 | QTAILQ_FOREACH(other, &memory_listeners, link) { |
| 1552 | if (listener->priority < other->priority) { |
| 1553 | break; |
| 1554 | } |
| 1555 | } |
| 1556 | QTAILQ_INSERT_BEFORE(other, listener, link); |
| 1557 | } |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 1558 | |
| 1559 | QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) { |
| 1560 | listener_add_address_space(listener, as); |
| 1561 | } |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 1562 | } |
| 1563 | |
| 1564 | void memory_listener_unregister(MemoryListener *listener) |
| 1565 | { |
Avi Kivity | 72e22d2 | 2012-02-08 15:05:50 +0200 | [diff] [blame] | 1566 | QTAILQ_REMOVE(&memory_listeners, listener, link); |
Avi Kivity | 86e775c | 2011-12-15 16:24:49 +0200 | [diff] [blame] | 1567 | } |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 1568 | |
Avi Kivity | 9ad2bbc | 2012-10-02 14:59:23 +0200 | [diff] [blame] | 1569 | void address_space_init(AddressSpace *as, MemoryRegion *root) |
Avi Kivity | 1c0ffa5 | 2011-07-26 14:26:04 +0300 | [diff] [blame] | 1570 | { |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1571 | memory_region_transaction_begin(); |
Avi Kivity | 8786db7 | 2012-10-02 13:53:41 +0200 | [diff] [blame] | 1572 | as->root = root; |
| 1573 | as->current_map = g_new(FlatView, 1); |
| 1574 | flatview_init(as->current_map); |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 1575 | QTAILQ_INSERT_TAIL(&address_spaces, as, address_spaces_link); |
| 1576 | as->name = NULL; |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1577 | memory_region_transaction_commit(); |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 1578 | address_space_init_dispatch(as); |
Avi Kivity | 1c0ffa5 | 2011-07-26 14:26:04 +0300 | [diff] [blame] | 1579 | } |
Avi Kivity | 658b222 | 2011-07-26 14:26:08 +0300 | [diff] [blame] | 1580 | |
Avi Kivity | 83f3c25 | 2012-10-07 12:59:55 +0200 | [diff] [blame] | 1581 | void address_space_destroy(AddressSpace *as) |
| 1582 | { |
| 1583 | /* Flush out anything from MemoryListeners listening in on this */ |
| 1584 | memory_region_transaction_begin(); |
| 1585 | as->root = NULL; |
| 1586 | memory_region_transaction_commit(); |
| 1587 | QTAILQ_REMOVE(&address_spaces, as, address_spaces_link); |
| 1588 | address_space_destroy_dispatch(as); |
| 1589 | flatview_destroy(as->current_map); |
| 1590 | g_free(as->current_map); |
| 1591 | } |
| 1592 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1593 | uint64_t io_mem_read(MemoryRegion *mr, hwaddr addr, unsigned size) |
Avi Kivity | acbbec5 | 2011-11-21 12:27:03 +0200 | [diff] [blame] | 1594 | { |
Avi Kivity | 37ec01d | 2012-03-08 18:08:35 +0200 | [diff] [blame] | 1595 | return memory_region_dispatch_read(mr, addr, size); |
Avi Kivity | acbbec5 | 2011-11-21 12:27:03 +0200 | [diff] [blame] | 1596 | } |
| 1597 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1598 | void io_mem_write(MemoryRegion *mr, hwaddr addr, |
Avi Kivity | acbbec5 | 2011-11-21 12:27:03 +0200 | [diff] [blame] | 1599 | uint64_t val, unsigned size) |
| 1600 | { |
Avi Kivity | 37ec01d | 2012-03-08 18:08:35 +0200 | [diff] [blame] | 1601 | memory_region_dispatch_write(mr, addr, val, size); |
Avi Kivity | acbbec5 | 2011-11-21 12:27:03 +0200 | [diff] [blame] | 1602 | } |
| 1603 | |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1604 | typedef struct MemoryRegionList MemoryRegionList; |
| 1605 | |
| 1606 | struct MemoryRegionList { |
| 1607 | const MemoryRegion *mr; |
| 1608 | bool printed; |
| 1609 | QTAILQ_ENTRY(MemoryRegionList) queue; |
| 1610 | }; |
| 1611 | |
| 1612 | typedef QTAILQ_HEAD(queue, MemoryRegionList) MemoryRegionListHead; |
| 1613 | |
| 1614 | static void mtree_print_mr(fprintf_function mon_printf, void *f, |
| 1615 | const MemoryRegion *mr, unsigned int level, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1616 | hwaddr base, |
Jan Kiszka | 9479c57 | 2011-09-27 15:00:41 +0200 | [diff] [blame] | 1617 | MemoryRegionListHead *alias_print_queue) |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1618 | { |
Jan Kiszka | 9479c57 | 2011-09-27 15:00:41 +0200 | [diff] [blame] | 1619 | MemoryRegionList *new_ml, *ml, *next_ml; |
| 1620 | MemoryRegionListHead submr_print_queue; |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1621 | const MemoryRegion *submr; |
| 1622 | unsigned int i; |
| 1623 | |
Jan Kiszka | 7ea692b | 2012-10-31 10:49:02 +0100 | [diff] [blame] | 1624 | if (!mr || !mr->enabled) { |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1625 | return; |
| 1626 | } |
| 1627 | |
| 1628 | for (i = 0; i < level; i++) { |
| 1629 | mon_printf(f, " "); |
| 1630 | } |
| 1631 | |
| 1632 | if (mr->alias) { |
| 1633 | MemoryRegionList *ml; |
| 1634 | bool found = false; |
| 1635 | |
| 1636 | /* check if the alias is already in the queue */ |
Jan Kiszka | 9479c57 | 2011-09-27 15:00:41 +0200 | [diff] [blame] | 1637 | QTAILQ_FOREACH(ml, alias_print_queue, queue) { |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1638 | if (ml->mr == mr->alias && !ml->printed) { |
| 1639 | found = true; |
| 1640 | } |
| 1641 | } |
| 1642 | |
| 1643 | if (!found) { |
| 1644 | ml = g_new(MemoryRegionList, 1); |
| 1645 | ml->mr = mr->alias; |
| 1646 | ml->printed = false; |
Jan Kiszka | 9479c57 | 2011-09-27 15:00:41 +0200 | [diff] [blame] | 1647 | QTAILQ_INSERT_TAIL(alias_print_queue, ml, queue); |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1648 | } |
Jan Kiszka | 4896d74 | 2012-02-04 16:25:42 +0100 | [diff] [blame] | 1649 | mon_printf(f, TARGET_FMT_plx "-" TARGET_FMT_plx |
| 1650 | " (prio %d, %c%c): alias %s @%s " TARGET_FMT_plx |
| 1651 | "-" TARGET_FMT_plx "\n", |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1652 | base + mr->addr, |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1653 | base + mr->addr |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1654 | + (hwaddr)int128_get64(mr->size) - 1, |
Jan Kiszka | 4b474ba | 2011-09-27 15:00:31 +0200 | [diff] [blame] | 1655 | mr->priority, |
Jan Kiszka | 5f9a5ea | 2013-05-07 19:04:25 +0200 | [diff] [blame] | 1656 | mr->romd_mode ? 'R' : '-', |
| 1657 | !mr->readonly && !(mr->rom_device && mr->romd_mode) ? 'W' |
| 1658 | : '-', |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1659 | mr->name, |
| 1660 | mr->alias->name, |
| 1661 | mr->alias_offset, |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1662 | mr->alias_offset |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1663 | + (hwaddr)int128_get64(mr->size) - 1); |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1664 | } else { |
Jan Kiszka | 4896d74 | 2012-02-04 16:25:42 +0100 | [diff] [blame] | 1665 | mon_printf(f, |
| 1666 | TARGET_FMT_plx "-" TARGET_FMT_plx " (prio %d, %c%c): %s\n", |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1667 | base + mr->addr, |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1668 | base + mr->addr |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1669 | + (hwaddr)int128_get64(mr->size) - 1, |
Jan Kiszka | 4b474ba | 2011-09-27 15:00:31 +0200 | [diff] [blame] | 1670 | mr->priority, |
Jan Kiszka | 5f9a5ea | 2013-05-07 19:04:25 +0200 | [diff] [blame] | 1671 | mr->romd_mode ? 'R' : '-', |
| 1672 | !mr->readonly && !(mr->rom_device && mr->romd_mode) ? 'W' |
| 1673 | : '-', |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1674 | mr->name); |
| 1675 | } |
Jan Kiszka | 9479c57 | 2011-09-27 15:00:41 +0200 | [diff] [blame] | 1676 | |
| 1677 | QTAILQ_INIT(&submr_print_queue); |
| 1678 | |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1679 | QTAILQ_FOREACH(submr, &mr->subregions, subregions_link) { |
Jan Kiszka | 9479c57 | 2011-09-27 15:00:41 +0200 | [diff] [blame] | 1680 | new_ml = g_new(MemoryRegionList, 1); |
| 1681 | new_ml->mr = submr; |
| 1682 | QTAILQ_FOREACH(ml, &submr_print_queue, queue) { |
| 1683 | if (new_ml->mr->addr < ml->mr->addr || |
| 1684 | (new_ml->mr->addr == ml->mr->addr && |
| 1685 | new_ml->mr->priority > ml->mr->priority)) { |
| 1686 | QTAILQ_INSERT_BEFORE(ml, new_ml, queue); |
| 1687 | new_ml = NULL; |
| 1688 | break; |
| 1689 | } |
| 1690 | } |
| 1691 | if (new_ml) { |
| 1692 | QTAILQ_INSERT_TAIL(&submr_print_queue, new_ml, queue); |
| 1693 | } |
| 1694 | } |
| 1695 | |
| 1696 | QTAILQ_FOREACH(ml, &submr_print_queue, queue) { |
| 1697 | mtree_print_mr(mon_printf, f, ml->mr, level + 1, base + mr->addr, |
| 1698 | alias_print_queue); |
| 1699 | } |
| 1700 | |
Avi Kivity | 88365e4 | 2011-11-13 12:00:55 +0200 | [diff] [blame] | 1701 | QTAILQ_FOREACH_SAFE(ml, &submr_print_queue, queue, next_ml) { |
Jan Kiszka | 9479c57 | 2011-09-27 15:00:41 +0200 | [diff] [blame] | 1702 | g_free(ml); |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1703 | } |
| 1704 | } |
| 1705 | |
| 1706 | void mtree_info(fprintf_function mon_printf, void *f) |
| 1707 | { |
| 1708 | MemoryRegionListHead ml_head; |
| 1709 | MemoryRegionList *ml, *ml2; |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 1710 | AddressSpace *as; |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1711 | |
| 1712 | QTAILQ_INIT(&ml_head); |
| 1713 | |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 1714 | QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) { |
| 1715 | if (!as->name) { |
| 1716 | continue; |
| 1717 | } |
| 1718 | mon_printf(f, "%s\n", as->name); |
| 1719 | mtree_print_mr(mon_printf, f, as->root, 0, 0, &ml_head); |
Blue Swirl | b9f9be8 | 2012-03-10 16:58:35 +0000 | [diff] [blame] | 1720 | } |
| 1721 | |
| 1722 | mon_printf(f, "aliases\n"); |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1723 | /* print aliased regions */ |
| 1724 | QTAILQ_FOREACH(ml, &ml_head, queue) { |
| 1725 | if (!ml->printed) { |
| 1726 | mon_printf(f, "%s\n", ml->mr->name); |
| 1727 | mtree_print_mr(mon_printf, f, ml->mr, 0, 0, &ml_head); |
| 1728 | } |
| 1729 | } |
| 1730 | |
| 1731 | QTAILQ_FOREACH_SAFE(ml, &ml_head, queue, ml2) { |
Avi Kivity | 88365e4 | 2011-11-13 12:00:55 +0200 | [diff] [blame] | 1732 | g_free(ml); |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1733 | } |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1734 | } |