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 | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 20 | #include "qom/object.h" |
Paolo Bonzini | 55d5d04 | 2013-07-28 14:57:22 +0200 | [diff] [blame] | 21 | #include "trace.h" |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 22 | #include <assert.h> |
| 23 | |
Paolo Bonzini | 022c62c | 2012-12-17 18:19:49 +0100 | [diff] [blame] | 24 | #include "exec/memory-internal.h" |
Juan Quintela | 220c3eb | 2013-10-14 17:13:59 +0200 | [diff] [blame] | 25 | #include "exec/ram_addr.h" |
Avi Kivity | 67d95c1 | 2011-12-15 15:25:22 +0200 | [diff] [blame] | 26 | |
Paolo Bonzini | d197063 | 2013-05-24 13:23:38 +0200 | [diff] [blame] | 27 | //#define DEBUG_UNASSIGNED |
| 28 | |
Jan Kiszka | 22bde71 | 2012-11-05 16:45:56 +0100 | [diff] [blame] | 29 | static unsigned memory_region_transaction_depth; |
| 30 | static bool memory_region_update_pending; |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 31 | static bool global_dirty_log = false; |
| 32 | |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 33 | /* flat_view_mutex is taken around reading as->current_map; the critical |
| 34 | * section is extremely short, so I'm using a single mutex for every AS. |
| 35 | * We could also RCU for the read-side. |
| 36 | * |
| 37 | * The BQL is taken around transaction commits, hence both locks are taken |
| 38 | * while writing to as->current_map (with the BQL taken outside). |
| 39 | */ |
| 40 | static QemuMutex flat_view_mutex; |
| 41 | |
Avi Kivity | 72e22d2 | 2012-02-08 15:05:50 +0200 | [diff] [blame] | 42 | static QTAILQ_HEAD(memory_listeners, MemoryListener) memory_listeners |
| 43 | = QTAILQ_HEAD_INITIALIZER(memory_listeners); |
Avi Kivity | 4ef4db8 | 2011-07-26 14:26:13 +0300 | [diff] [blame] | 44 | |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 45 | static QTAILQ_HEAD(, AddressSpace) address_spaces |
| 46 | = QTAILQ_HEAD_INITIALIZER(address_spaces); |
| 47 | |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 48 | static void memory_init(void) |
| 49 | { |
| 50 | qemu_mutex_init(&flat_view_mutex); |
| 51 | } |
| 52 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 53 | typedef struct AddrRange AddrRange; |
| 54 | |
Avi Kivity | 8417ceb | 2011-08-03 11:56:14 +0300 | [diff] [blame] | 55 | /* |
| 56 | * Note using signed integers limits us to physical addresses at most |
| 57 | * 63 bits wide. They are needed for negative offsetting in aliases |
| 58 | * (large MemoryRegion::alias_offset). |
| 59 | */ |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 60 | struct AddrRange { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 61 | Int128 start; |
| 62 | Int128 size; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 63 | }; |
| 64 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 65 | static AddrRange addrrange_make(Int128 start, Int128 size) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 66 | { |
| 67 | return (AddrRange) { start, size }; |
| 68 | } |
| 69 | |
| 70 | static bool addrrange_equal(AddrRange r1, AddrRange r2) |
| 71 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 72 | 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] | 73 | } |
| 74 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 75 | static Int128 addrrange_end(AddrRange r) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 76 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 77 | return int128_add(r.start, r.size); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 78 | } |
| 79 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 80 | static AddrRange addrrange_shift(AddrRange range, Int128 delta) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 81 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 82 | int128_addto(&range.start, delta); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 83 | return range; |
| 84 | } |
| 85 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 86 | static bool addrrange_contains(AddrRange range, Int128 addr) |
| 87 | { |
| 88 | return int128_ge(addr, range.start) |
| 89 | && int128_lt(addr, addrrange_end(range)); |
| 90 | } |
| 91 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 92 | static bool addrrange_intersects(AddrRange r1, AddrRange r2) |
| 93 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 94 | return addrrange_contains(r1, r2.start) |
| 95 | || addrrange_contains(r2, r1.start); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 96 | } |
| 97 | |
| 98 | static AddrRange addrrange_intersection(AddrRange r1, AddrRange r2) |
| 99 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 100 | Int128 start = int128_max(r1.start, r2.start); |
| 101 | Int128 end = int128_min(addrrange_end(r1), addrrange_end(r2)); |
| 102 | return addrrange_make(start, int128_sub(end, start)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 103 | } |
| 104 | |
Avi Kivity | 0e0d36b | 2012-02-08 16:39:45 +0200 | [diff] [blame] | 105 | enum ListenerDirection { Forward, Reverse }; |
| 106 | |
Avi Kivity | 7376e58 | 2012-02-08 21:05:17 +0200 | [diff] [blame] | 107 | static bool memory_listener_match(MemoryListener *listener, |
| 108 | MemoryRegionSection *section) |
| 109 | { |
| 110 | return !listener->address_space_filter |
| 111 | || listener->address_space_filter == section->address_space; |
| 112 | } |
| 113 | |
| 114 | #define MEMORY_LISTENER_CALL_GLOBAL(_callback, _direction, _args...) \ |
Avi Kivity | 0e0d36b | 2012-02-08 16:39:45 +0200 | [diff] [blame] | 115 | do { \ |
| 116 | MemoryListener *_listener; \ |
| 117 | \ |
| 118 | switch (_direction) { \ |
| 119 | case Forward: \ |
| 120 | QTAILQ_FOREACH(_listener, &memory_listeners, link) { \ |
Avi Kivity | 975aefe | 2012-10-02 16:39:57 +0200 | [diff] [blame] | 121 | if (_listener->_callback) { \ |
| 122 | _listener->_callback(_listener, ##_args); \ |
| 123 | } \ |
Avi Kivity | 0e0d36b | 2012-02-08 16:39:45 +0200 | [diff] [blame] | 124 | } \ |
| 125 | break; \ |
| 126 | case Reverse: \ |
| 127 | QTAILQ_FOREACH_REVERSE(_listener, &memory_listeners, \ |
| 128 | memory_listeners, link) { \ |
Avi Kivity | 975aefe | 2012-10-02 16:39:57 +0200 | [diff] [blame] | 129 | if (_listener->_callback) { \ |
| 130 | _listener->_callback(_listener, ##_args); \ |
| 131 | } \ |
Avi Kivity | 0e0d36b | 2012-02-08 16:39:45 +0200 | [diff] [blame] | 132 | } \ |
| 133 | break; \ |
| 134 | default: \ |
| 135 | abort(); \ |
| 136 | } \ |
| 137 | } while (0) |
| 138 | |
Avi Kivity | 7376e58 | 2012-02-08 21:05:17 +0200 | [diff] [blame] | 139 | #define MEMORY_LISTENER_CALL(_callback, _direction, _section, _args...) \ |
| 140 | do { \ |
| 141 | MemoryListener *_listener; \ |
| 142 | \ |
| 143 | switch (_direction) { \ |
| 144 | case Forward: \ |
| 145 | QTAILQ_FOREACH(_listener, &memory_listeners, link) { \ |
Avi Kivity | 975aefe | 2012-10-02 16:39:57 +0200 | [diff] [blame] | 146 | if (_listener->_callback \ |
| 147 | && memory_listener_match(_listener, _section)) { \ |
Avi Kivity | 7376e58 | 2012-02-08 21:05:17 +0200 | [diff] [blame] | 148 | _listener->_callback(_listener, _section, ##_args); \ |
| 149 | } \ |
| 150 | } \ |
| 151 | break; \ |
| 152 | case Reverse: \ |
| 153 | QTAILQ_FOREACH_REVERSE(_listener, &memory_listeners, \ |
| 154 | memory_listeners, link) { \ |
Avi Kivity | 975aefe | 2012-10-02 16:39:57 +0200 | [diff] [blame] | 155 | if (_listener->_callback \ |
| 156 | && memory_listener_match(_listener, _section)) { \ |
Avi Kivity | 7376e58 | 2012-02-08 21:05:17 +0200 | [diff] [blame] | 157 | _listener->_callback(_listener, _section, ##_args); \ |
| 158 | } \ |
| 159 | } \ |
| 160 | break; \ |
| 161 | default: \ |
| 162 | abort(); \ |
| 163 | } \ |
| 164 | } while (0) |
| 165 | |
Paolo Bonzini | dfde4e6 | 2013-05-06 10:46:11 +0200 | [diff] [blame] | 166 | /* No need to ref/unref .mr, the FlatRange keeps it alive. */ |
Avi Kivity | 0e0d36b | 2012-02-08 16:39:45 +0200 | [diff] [blame] | 167 | #define MEMORY_LISTENER_UPDATE_REGION(fr, as, dir, callback) \ |
Avi Kivity | 7376e58 | 2012-02-08 21:05:17 +0200 | [diff] [blame] | 168 | MEMORY_LISTENER_CALL(callback, dir, (&(MemoryRegionSection) { \ |
Avi Kivity | 0e0d36b | 2012-02-08 16:39:45 +0200 | [diff] [blame] | 169 | .mr = (fr)->mr, \ |
Avi Kivity | f6790af | 2012-10-02 20:13:51 +0200 | [diff] [blame] | 170 | .address_space = (as), \ |
Avi Kivity | 0e0d36b | 2012-02-08 16:39:45 +0200 | [diff] [blame] | 171 | .offset_within_region = (fr)->offset_in_region, \ |
Paolo Bonzini | 052e87b | 2013-05-27 10:08:27 +0200 | [diff] [blame] | 172 | .size = (fr)->addr.size, \ |
Avi Kivity | 0e0d36b | 2012-02-08 16:39:45 +0200 | [diff] [blame] | 173 | .offset_within_address_space = int128_get64((fr)->addr.start), \ |
Avi Kivity | 7a8499e | 2012-02-08 17:01:23 +0200 | [diff] [blame] | 174 | .readonly = (fr)->readonly, \ |
Avi Kivity | 7376e58 | 2012-02-08 21:05:17 +0200 | [diff] [blame] | 175 | })) |
Avi Kivity | 0e0d36b | 2012-02-08 16:39:45 +0200 | [diff] [blame] | 176 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 177 | struct CoalescedMemoryRange { |
| 178 | AddrRange addr; |
| 179 | QTAILQ_ENTRY(CoalescedMemoryRange) link; |
| 180 | }; |
| 181 | |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 182 | struct MemoryRegionIoeventfd { |
| 183 | AddrRange addr; |
| 184 | bool match_data; |
| 185 | uint64_t data; |
Paolo Bonzini | 753d5e1 | 2012-07-05 17:16:27 +0200 | [diff] [blame] | 186 | EventNotifier *e; |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 187 | }; |
| 188 | |
| 189 | static bool memory_region_ioeventfd_before(MemoryRegionIoeventfd a, |
| 190 | MemoryRegionIoeventfd b) |
| 191 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 192 | if (int128_lt(a.addr.start, b.addr.start)) { |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 193 | return true; |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 194 | } else if (int128_gt(a.addr.start, b.addr.start)) { |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 195 | return false; |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 196 | } else if (int128_lt(a.addr.size, b.addr.size)) { |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 197 | return true; |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 198 | } else if (int128_gt(a.addr.size, b.addr.size)) { |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 199 | return false; |
| 200 | } else if (a.match_data < b.match_data) { |
| 201 | return true; |
| 202 | } else if (a.match_data > b.match_data) { |
| 203 | return false; |
| 204 | } else if (a.match_data) { |
| 205 | if (a.data < b.data) { |
| 206 | return true; |
| 207 | } else if (a.data > b.data) { |
| 208 | return false; |
| 209 | } |
| 210 | } |
Paolo Bonzini | 753d5e1 | 2012-07-05 17:16:27 +0200 | [diff] [blame] | 211 | if (a.e < b.e) { |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 212 | return true; |
Paolo Bonzini | 753d5e1 | 2012-07-05 17:16:27 +0200 | [diff] [blame] | 213 | } else if (a.e > b.e) { |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 214 | return false; |
| 215 | } |
| 216 | return false; |
| 217 | } |
| 218 | |
| 219 | static bool memory_region_ioeventfd_equal(MemoryRegionIoeventfd a, |
| 220 | MemoryRegionIoeventfd b) |
| 221 | { |
| 222 | return !memory_region_ioeventfd_before(a, b) |
| 223 | && !memory_region_ioeventfd_before(b, a); |
| 224 | } |
| 225 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 226 | typedef struct FlatRange FlatRange; |
| 227 | typedef struct FlatView FlatView; |
| 228 | |
| 229 | /* Range of memory in the global map. Addresses are absolute. */ |
| 230 | struct FlatRange { |
| 231 | MemoryRegion *mr; |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 232 | hwaddr offset_in_region; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 233 | AddrRange addr; |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 234 | uint8_t dirty_log_mask; |
Jan Kiszka | 5f9a5ea | 2013-05-07 19:04:25 +0200 | [diff] [blame] | 235 | bool romd_mode; |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 236 | bool readonly; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 237 | }; |
| 238 | |
| 239 | /* Flattened global view of current active memory hierarchy. Kept in sorted |
| 240 | * order. |
| 241 | */ |
| 242 | struct FlatView { |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 243 | unsigned ref; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 244 | FlatRange *ranges; |
| 245 | unsigned nr; |
| 246 | unsigned nr_allocated; |
| 247 | }; |
| 248 | |
Avi Kivity | cc31e6e | 2011-07-26 14:26:05 +0300 | [diff] [blame] | 249 | typedef struct AddressSpaceOps AddressSpaceOps; |
| 250 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 251 | #define FOR_EACH_FLAT_RANGE(var, view) \ |
| 252 | for (var = (view)->ranges; var < (view)->ranges + (view)->nr; ++var) |
| 253 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 254 | static bool flatrange_equal(FlatRange *a, FlatRange *b) |
| 255 | { |
| 256 | return a->mr == b->mr |
| 257 | && addrrange_equal(a->addr, b->addr) |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 258 | && a->offset_in_region == b->offset_in_region |
Jan Kiszka | 5f9a5ea | 2013-05-07 19:04:25 +0200 | [diff] [blame] | 259 | && a->romd_mode == b->romd_mode |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 260 | && a->readonly == b->readonly; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 261 | } |
| 262 | |
| 263 | static void flatview_init(FlatView *view) |
| 264 | { |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 265 | view->ref = 1; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 266 | view->ranges = NULL; |
| 267 | view->nr = 0; |
| 268 | view->nr_allocated = 0; |
| 269 | } |
| 270 | |
| 271 | /* Insert a range into a given position. Caller is responsible for maintaining |
| 272 | * sorting order. |
| 273 | */ |
| 274 | static void flatview_insert(FlatView *view, unsigned pos, FlatRange *range) |
| 275 | { |
| 276 | if (view->nr == view->nr_allocated) { |
| 277 | view->nr_allocated = MAX(2 * view->nr, 10); |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 278 | view->ranges = g_realloc(view->ranges, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 279 | view->nr_allocated * sizeof(*view->ranges)); |
| 280 | } |
| 281 | memmove(view->ranges + pos + 1, view->ranges + pos, |
| 282 | (view->nr - pos) * sizeof(FlatRange)); |
| 283 | view->ranges[pos] = *range; |
Paolo Bonzini | dfde4e6 | 2013-05-06 10:46:11 +0200 | [diff] [blame] | 284 | memory_region_ref(range->mr); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 285 | ++view->nr; |
| 286 | } |
| 287 | |
| 288 | static void flatview_destroy(FlatView *view) |
| 289 | { |
Paolo Bonzini | dfde4e6 | 2013-05-06 10:46:11 +0200 | [diff] [blame] | 290 | int i; |
| 291 | |
| 292 | for (i = 0; i < view->nr; i++) { |
| 293 | memory_region_unref(view->ranges[i].mr); |
| 294 | } |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 295 | g_free(view->ranges); |
Paolo Bonzini | a9a0c06 | 2013-05-06 10:29:07 +0200 | [diff] [blame] | 296 | g_free(view); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 297 | } |
| 298 | |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 299 | static void flatview_ref(FlatView *view) |
| 300 | { |
| 301 | atomic_inc(&view->ref); |
| 302 | } |
| 303 | |
| 304 | static void flatview_unref(FlatView *view) |
| 305 | { |
| 306 | if (atomic_fetch_dec(&view->ref) == 1) { |
| 307 | flatview_destroy(view); |
| 308 | } |
| 309 | } |
| 310 | |
Avi Kivity | 3d8e6bf | 2011-07-26 14:26:03 +0300 | [diff] [blame] | 311 | static bool can_merge(FlatRange *r1, FlatRange *r2) |
| 312 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 313 | return int128_eq(addrrange_end(r1->addr), r2->addr.start) |
Avi Kivity | 3d8e6bf | 2011-07-26 14:26:03 +0300 | [diff] [blame] | 314 | && r1->mr == r2->mr |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 315 | && int128_eq(int128_add(int128_make64(r1->offset_in_region), |
| 316 | r1->addr.size), |
| 317 | int128_make64(r2->offset_in_region)) |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 318 | && r1->dirty_log_mask == r2->dirty_log_mask |
Jan Kiszka | 5f9a5ea | 2013-05-07 19:04:25 +0200 | [diff] [blame] | 319 | && r1->romd_mode == r2->romd_mode |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 320 | && r1->readonly == r2->readonly; |
Avi Kivity | 3d8e6bf | 2011-07-26 14:26:03 +0300 | [diff] [blame] | 321 | } |
| 322 | |
Peter Crosthwaite | 8508e02 | 2013-06-03 15:31:56 +1000 | [diff] [blame] | 323 | /* Attempt to simplify a view by merging adjacent ranges */ |
Avi Kivity | 3d8e6bf | 2011-07-26 14:26:03 +0300 | [diff] [blame] | 324 | static void flatview_simplify(FlatView *view) |
| 325 | { |
| 326 | unsigned i, j; |
| 327 | |
| 328 | i = 0; |
| 329 | while (i < view->nr) { |
| 330 | j = i + 1; |
| 331 | while (j < view->nr |
| 332 | && can_merge(&view->ranges[j-1], &view->ranges[j])) { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 333 | int128_addto(&view->ranges[i].addr.size, view->ranges[j].addr.size); |
Avi Kivity | 3d8e6bf | 2011-07-26 14:26:03 +0300 | [diff] [blame] | 334 | ++j; |
| 335 | } |
| 336 | ++i; |
| 337 | memmove(&view->ranges[i], &view->ranges[j], |
| 338 | (view->nr - j) * sizeof(view->ranges[j])); |
| 339 | view->nr -= j - i; |
| 340 | } |
| 341 | } |
| 342 | |
Paolo Bonzini | e7342aa | 2013-07-22 15:54:37 +0200 | [diff] [blame] | 343 | static bool memory_region_big_endian(MemoryRegion *mr) |
| 344 | { |
| 345 | #ifdef TARGET_WORDS_BIGENDIAN |
| 346 | return mr->ops->endianness != DEVICE_LITTLE_ENDIAN; |
| 347 | #else |
| 348 | return mr->ops->endianness == DEVICE_BIG_ENDIAN; |
| 349 | #endif |
| 350 | } |
| 351 | |
Paolo Bonzini | e11ef3d | 2013-07-22 15:54:35 +0200 | [diff] [blame] | 352 | static bool memory_region_wrong_endianness(MemoryRegion *mr) |
| 353 | { |
| 354 | #ifdef TARGET_WORDS_BIGENDIAN |
| 355 | return mr->ops->endianness == DEVICE_LITTLE_ENDIAN; |
| 356 | #else |
| 357 | return mr->ops->endianness == DEVICE_BIG_ENDIAN; |
| 358 | #endif |
| 359 | } |
| 360 | |
| 361 | static void adjust_endianness(MemoryRegion *mr, uint64_t *data, unsigned size) |
| 362 | { |
| 363 | if (memory_region_wrong_endianness(mr)) { |
| 364 | switch (size) { |
| 365 | case 1: |
| 366 | break; |
| 367 | case 2: |
| 368 | *data = bswap16(*data); |
| 369 | break; |
| 370 | case 4: |
| 371 | *data = bswap32(*data); |
| 372 | break; |
| 373 | case 8: |
| 374 | *data = bswap64(*data); |
| 375 | break; |
| 376 | default: |
| 377 | abort(); |
| 378 | } |
| 379 | } |
| 380 | } |
| 381 | |
Paolo Bonzini | 547e920 | 2013-07-22 15:54:36 +0200 | [diff] [blame] | 382 | static void memory_region_oldmmio_read_accessor(MemoryRegion *mr, |
Paolo Bonzini | ce5d2f3 | 2013-05-24 17:45:48 +0200 | [diff] [blame] | 383 | hwaddr addr, |
| 384 | uint64_t *value, |
| 385 | unsigned size, |
| 386 | unsigned shift, |
| 387 | uint64_t mask) |
| 388 | { |
Paolo Bonzini | ce5d2f3 | 2013-05-24 17:45:48 +0200 | [diff] [blame] | 389 | uint64_t tmp; |
| 390 | |
| 391 | tmp = mr->ops->old_mmio.read[ctz32(size)](mr->opaque, addr); |
Paolo Bonzini | 55d5d04 | 2013-07-28 14:57:22 +0200 | [diff] [blame] | 392 | trace_memory_region_ops_read(mr, addr, tmp, size); |
Paolo Bonzini | ce5d2f3 | 2013-05-24 17:45:48 +0200 | [diff] [blame] | 393 | *value |= (tmp & mask) << shift; |
| 394 | } |
| 395 | |
Paolo Bonzini | 547e920 | 2013-07-22 15:54:36 +0200 | [diff] [blame] | 396 | static void memory_region_read_accessor(MemoryRegion *mr, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 397 | hwaddr addr, |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 398 | uint64_t *value, |
| 399 | unsigned size, |
| 400 | unsigned shift, |
| 401 | uint64_t mask) |
| 402 | { |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 403 | uint64_t tmp; |
| 404 | |
Jan Kiszka | d410515 | 2012-08-23 13:02:29 +0200 | [diff] [blame] | 405 | if (mr->flush_coalesced_mmio) { |
| 406 | qemu_flush_coalesced_mmio_buffer(); |
| 407 | } |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 408 | tmp = mr->ops->read(mr->opaque, addr, size); |
Paolo Bonzini | 55d5d04 | 2013-07-28 14:57:22 +0200 | [diff] [blame] | 409 | trace_memory_region_ops_read(mr, addr, tmp, size); |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 410 | *value |= (tmp & mask) << shift; |
| 411 | } |
| 412 | |
Paolo Bonzini | 547e920 | 2013-07-22 15:54:36 +0200 | [diff] [blame] | 413 | static void memory_region_oldmmio_write_accessor(MemoryRegion *mr, |
Paolo Bonzini | ce5d2f3 | 2013-05-24 17:45:48 +0200 | [diff] [blame] | 414 | hwaddr addr, |
| 415 | uint64_t *value, |
| 416 | unsigned size, |
| 417 | unsigned shift, |
| 418 | uint64_t mask) |
| 419 | { |
Paolo Bonzini | ce5d2f3 | 2013-05-24 17:45:48 +0200 | [diff] [blame] | 420 | uint64_t tmp; |
| 421 | |
| 422 | tmp = (*value >> shift) & mask; |
Paolo Bonzini | 55d5d04 | 2013-07-28 14:57:22 +0200 | [diff] [blame] | 423 | trace_memory_region_ops_write(mr, addr, tmp, size); |
Paolo Bonzini | ce5d2f3 | 2013-05-24 17:45:48 +0200 | [diff] [blame] | 424 | mr->ops->old_mmio.write[ctz32(size)](mr->opaque, addr, tmp); |
| 425 | } |
| 426 | |
Paolo Bonzini | 547e920 | 2013-07-22 15:54:36 +0200 | [diff] [blame] | 427 | static void memory_region_write_accessor(MemoryRegion *mr, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 428 | hwaddr addr, |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 429 | uint64_t *value, |
| 430 | unsigned size, |
| 431 | unsigned shift, |
| 432 | uint64_t mask) |
| 433 | { |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 434 | uint64_t tmp; |
| 435 | |
Jan Kiszka | d410515 | 2012-08-23 13:02:29 +0200 | [diff] [blame] | 436 | if (mr->flush_coalesced_mmio) { |
| 437 | qemu_flush_coalesced_mmio_buffer(); |
| 438 | } |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 439 | tmp = (*value >> shift) & mask; |
Paolo Bonzini | 55d5d04 | 2013-07-28 14:57:22 +0200 | [diff] [blame] | 440 | trace_memory_region_ops_write(mr, addr, tmp, size); |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 441 | mr->ops->write(mr->opaque, addr, tmp, size); |
| 442 | } |
| 443 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 444 | static void access_with_adjusted_size(hwaddr addr, |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 445 | uint64_t *value, |
| 446 | unsigned size, |
| 447 | unsigned access_size_min, |
| 448 | unsigned access_size_max, |
Paolo Bonzini | 547e920 | 2013-07-22 15:54:36 +0200 | [diff] [blame] | 449 | void (*access)(MemoryRegion *mr, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 450 | hwaddr addr, |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 451 | uint64_t *value, |
| 452 | unsigned size, |
| 453 | unsigned shift, |
| 454 | uint64_t mask), |
Paolo Bonzini | 547e920 | 2013-07-22 15:54:36 +0200 | [diff] [blame] | 455 | MemoryRegion *mr) |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 456 | { |
| 457 | uint64_t access_mask; |
| 458 | unsigned access_size; |
| 459 | unsigned i; |
| 460 | |
| 461 | if (!access_size_min) { |
| 462 | access_size_min = 1; |
| 463 | } |
| 464 | if (!access_size_max) { |
| 465 | access_size_max = 4; |
| 466 | } |
Paolo Bonzini | ce5d2f3 | 2013-05-24 17:45:48 +0200 | [diff] [blame] | 467 | |
| 468 | /* FIXME: support unaligned access? */ |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 469 | access_size = MAX(MIN(size, access_size_max), access_size_min); |
| 470 | access_mask = -1ULL >> (64 - access_size * 8); |
Paolo Bonzini | e7342aa | 2013-07-22 15:54:37 +0200 | [diff] [blame] | 471 | if (memory_region_big_endian(mr)) { |
| 472 | for (i = 0; i < size; i += access_size) { |
| 473 | access(mr, addr + i, value, access_size, |
| 474 | (size - access_size - i) * 8, access_mask); |
| 475 | } |
| 476 | } else { |
| 477 | for (i = 0; i < size; i += access_size) { |
| 478 | access(mr, addr + i, value, access_size, i * 8, access_mask); |
| 479 | } |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 480 | } |
| 481 | } |
| 482 | |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 483 | static AddressSpace *memory_region_to_address_space(MemoryRegion *mr) |
| 484 | { |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 485 | AddressSpace *as; |
| 486 | |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 487 | while (mr->parent) { |
| 488 | mr = mr->parent; |
| 489 | } |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 490 | QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) { |
| 491 | if (mr == as->root) { |
| 492 | return as; |
| 493 | } |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 494 | } |
| 495 | abort(); |
| 496 | } |
| 497 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 498 | /* Render a memory region into the global view. Ranges in @view obscure |
| 499 | * ranges in @mr. |
| 500 | */ |
| 501 | static void render_memory_region(FlatView *view, |
| 502 | MemoryRegion *mr, |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 503 | Int128 base, |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 504 | AddrRange clip, |
| 505 | bool readonly) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 506 | { |
| 507 | MemoryRegion *subregion; |
| 508 | unsigned i; |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 509 | hwaddr offset_in_region; |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 510 | Int128 remain; |
| 511 | Int128 now; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 512 | FlatRange fr; |
| 513 | AddrRange tmp; |
| 514 | |
Avi Kivity | 6bba19b | 2011-09-14 11:54:58 +0300 | [diff] [blame] | 515 | if (!mr->enabled) { |
| 516 | return; |
| 517 | } |
| 518 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 519 | int128_addto(&base, int128_make64(mr->addr)); |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 520 | readonly |= mr->readonly; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 521 | |
| 522 | tmp = addrrange_make(base, mr->size); |
| 523 | |
| 524 | if (!addrrange_intersects(tmp, clip)) { |
| 525 | return; |
| 526 | } |
| 527 | |
| 528 | clip = addrrange_intersection(tmp, clip); |
| 529 | |
| 530 | if (mr->alias) { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 531 | int128_subfrom(&base, int128_make64(mr->alias->addr)); |
| 532 | int128_subfrom(&base, int128_make64(mr->alias_offset)); |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 533 | render_memory_region(view, mr->alias, base, clip, readonly); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 534 | return; |
| 535 | } |
| 536 | |
| 537 | /* Render subregions in priority order. */ |
| 538 | QTAILQ_FOREACH(subregion, &mr->subregions, subregions_link) { |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 539 | render_memory_region(view, subregion, base, clip, readonly); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 540 | } |
| 541 | |
Avi Kivity | 14a3c10 | 2011-07-26 14:26:06 +0300 | [diff] [blame] | 542 | if (!mr->terminates) { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 543 | return; |
| 544 | } |
| 545 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 546 | offset_in_region = int128_get64(int128_sub(clip.start, base)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 547 | base = clip.start; |
| 548 | remain = clip.size; |
| 549 | |
Peter Crosthwaite | 2eb74e1 | 2013-06-03 15:33:29 +1000 | [diff] [blame] | 550 | fr.mr = mr; |
| 551 | fr.dirty_log_mask = mr->dirty_log_mask; |
| 552 | fr.romd_mode = mr->romd_mode; |
| 553 | fr.readonly = readonly; |
| 554 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 555 | /* Render the region itself into any gaps left by the current view. */ |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 556 | for (i = 0; i < view->nr && int128_nz(remain); ++i) { |
| 557 | if (int128_ge(base, addrrange_end(view->ranges[i].addr))) { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 558 | continue; |
| 559 | } |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 560 | if (int128_lt(base, view->ranges[i].addr.start)) { |
| 561 | now = int128_min(remain, |
| 562 | int128_sub(view->ranges[i].addr.start, base)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 563 | fr.offset_in_region = offset_in_region; |
| 564 | fr.addr = addrrange_make(base, now); |
| 565 | flatview_insert(view, i, &fr); |
| 566 | ++i; |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 567 | int128_addto(&base, now); |
| 568 | offset_in_region += int128_get64(now); |
| 569 | int128_subfrom(&remain, now); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 570 | } |
Avi Kivity | d26a8ca | 2012-10-29 18:22:36 +0200 | [diff] [blame] | 571 | now = int128_sub(int128_min(int128_add(base, remain), |
| 572 | addrrange_end(view->ranges[i].addr)), |
| 573 | base); |
| 574 | int128_addto(&base, now); |
| 575 | offset_in_region += int128_get64(now); |
| 576 | int128_subfrom(&remain, now); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 577 | } |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 578 | if (int128_nz(remain)) { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 579 | fr.offset_in_region = offset_in_region; |
| 580 | fr.addr = addrrange_make(base, remain); |
| 581 | flatview_insert(view, i, &fr); |
| 582 | } |
| 583 | } |
| 584 | |
| 585 | /* Render a memory topology into a list of disjoint absolute ranges. */ |
Paolo Bonzini | a9a0c06 | 2013-05-06 10:29:07 +0200 | [diff] [blame] | 586 | static FlatView *generate_memory_topology(MemoryRegion *mr) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 587 | { |
Paolo Bonzini | a9a0c06 | 2013-05-06 10:29:07 +0200 | [diff] [blame] | 588 | FlatView *view; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 589 | |
Paolo Bonzini | a9a0c06 | 2013-05-06 10:29:07 +0200 | [diff] [blame] | 590 | view = g_new(FlatView, 1); |
| 591 | flatview_init(view); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 592 | |
Avi Kivity | 83f3c25 | 2012-10-07 12:59:55 +0200 | [diff] [blame] | 593 | if (mr) { |
Paolo Bonzini | a9a0c06 | 2013-05-06 10:29:07 +0200 | [diff] [blame] | 594 | render_memory_region(view, mr, int128_zero(), |
Avi Kivity | 83f3c25 | 2012-10-07 12:59:55 +0200 | [diff] [blame] | 595 | addrrange_make(int128_zero(), int128_2_64()), false); |
| 596 | } |
Paolo Bonzini | a9a0c06 | 2013-05-06 10:29:07 +0200 | [diff] [blame] | 597 | flatview_simplify(view); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 598 | |
| 599 | return view; |
| 600 | } |
| 601 | |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 602 | static void address_space_add_del_ioeventfds(AddressSpace *as, |
| 603 | MemoryRegionIoeventfd *fds_new, |
| 604 | unsigned fds_new_nb, |
| 605 | MemoryRegionIoeventfd *fds_old, |
| 606 | unsigned fds_old_nb) |
| 607 | { |
| 608 | unsigned iold, inew; |
Avi Kivity | 80a1ea3 | 2012-02-08 16:39:06 +0200 | [diff] [blame] | 609 | MemoryRegionIoeventfd *fd; |
| 610 | MemoryRegionSection section; |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 611 | |
| 612 | /* Generate a symmetric difference of the old and new fd sets, adding |
| 613 | * and deleting as necessary. |
| 614 | */ |
| 615 | |
| 616 | iold = inew = 0; |
| 617 | while (iold < fds_old_nb || inew < fds_new_nb) { |
| 618 | if (iold < fds_old_nb |
| 619 | && (inew == fds_new_nb |
| 620 | || memory_region_ioeventfd_before(fds_old[iold], |
| 621 | fds_new[inew]))) { |
Avi Kivity | 80a1ea3 | 2012-02-08 16:39:06 +0200 | [diff] [blame] | 622 | fd = &fds_old[iold]; |
| 623 | section = (MemoryRegionSection) { |
Avi Kivity | f6790af | 2012-10-02 20:13:51 +0200 | [diff] [blame] | 624 | .address_space = as, |
Avi Kivity | 80a1ea3 | 2012-02-08 16:39:06 +0200 | [diff] [blame] | 625 | .offset_within_address_space = int128_get64(fd->addr.start), |
Paolo Bonzini | 052e87b | 2013-05-27 10:08:27 +0200 | [diff] [blame] | 626 | .size = fd->addr.size, |
Avi Kivity | 80a1ea3 | 2012-02-08 16:39:06 +0200 | [diff] [blame] | 627 | }; |
| 628 | MEMORY_LISTENER_CALL(eventfd_del, Forward, §ion, |
Paolo Bonzini | 753d5e1 | 2012-07-05 17:16:27 +0200 | [diff] [blame] | 629 | fd->match_data, fd->data, fd->e); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 630 | ++iold; |
| 631 | } else if (inew < fds_new_nb |
| 632 | && (iold == fds_old_nb |
| 633 | || memory_region_ioeventfd_before(fds_new[inew], |
| 634 | fds_old[iold]))) { |
Avi Kivity | 80a1ea3 | 2012-02-08 16:39:06 +0200 | [diff] [blame] | 635 | fd = &fds_new[inew]; |
| 636 | section = (MemoryRegionSection) { |
Avi Kivity | f6790af | 2012-10-02 20:13:51 +0200 | [diff] [blame] | 637 | .address_space = as, |
Avi Kivity | 80a1ea3 | 2012-02-08 16:39:06 +0200 | [diff] [blame] | 638 | .offset_within_address_space = int128_get64(fd->addr.start), |
Paolo Bonzini | 052e87b | 2013-05-27 10:08:27 +0200 | [diff] [blame] | 639 | .size = fd->addr.size, |
Avi Kivity | 80a1ea3 | 2012-02-08 16:39:06 +0200 | [diff] [blame] | 640 | }; |
| 641 | MEMORY_LISTENER_CALL(eventfd_add, Reverse, §ion, |
Paolo Bonzini | 753d5e1 | 2012-07-05 17:16:27 +0200 | [diff] [blame] | 642 | fd->match_data, fd->data, fd->e); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 643 | ++inew; |
| 644 | } else { |
| 645 | ++iold; |
| 646 | ++inew; |
| 647 | } |
| 648 | } |
| 649 | } |
| 650 | |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 651 | static FlatView *address_space_get_flatview(AddressSpace *as) |
| 652 | { |
| 653 | FlatView *view; |
| 654 | |
| 655 | qemu_mutex_lock(&flat_view_mutex); |
| 656 | view = as->current_map; |
| 657 | flatview_ref(view); |
| 658 | qemu_mutex_unlock(&flat_view_mutex); |
| 659 | return view; |
| 660 | } |
| 661 | |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 662 | static void address_space_update_ioeventfds(AddressSpace *as) |
| 663 | { |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 664 | FlatView *view; |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 665 | FlatRange *fr; |
| 666 | unsigned ioeventfd_nb = 0; |
| 667 | MemoryRegionIoeventfd *ioeventfds = NULL; |
| 668 | AddrRange tmp; |
| 669 | unsigned i; |
| 670 | |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 671 | view = address_space_get_flatview(as); |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 672 | FOR_EACH_FLAT_RANGE(fr, view) { |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 673 | for (i = 0; i < fr->mr->ioeventfd_nb; ++i) { |
| 674 | tmp = addrrange_shift(fr->mr->ioeventfds[i].addr, |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 675 | int128_sub(fr->addr.start, |
| 676 | int128_make64(fr->offset_in_region))); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 677 | if (addrrange_intersects(fr->addr, tmp)) { |
| 678 | ++ioeventfd_nb; |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 679 | ioeventfds = g_realloc(ioeventfds, |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 680 | ioeventfd_nb * sizeof(*ioeventfds)); |
| 681 | ioeventfds[ioeventfd_nb-1] = fr->mr->ioeventfds[i]; |
| 682 | ioeventfds[ioeventfd_nb-1].addr = tmp; |
| 683 | } |
| 684 | } |
| 685 | } |
| 686 | |
| 687 | address_space_add_del_ioeventfds(as, ioeventfds, ioeventfd_nb, |
| 688 | as->ioeventfds, as->ioeventfd_nb); |
| 689 | |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 690 | g_free(as->ioeventfds); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 691 | as->ioeventfds = ioeventfds; |
| 692 | as->ioeventfd_nb = ioeventfd_nb; |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 693 | flatview_unref(view); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 694 | } |
| 695 | |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 696 | static void address_space_update_topology_pass(AddressSpace *as, |
Paolo Bonzini | a9a0c06 | 2013-05-06 10:29:07 +0200 | [diff] [blame] | 697 | const FlatView *old_view, |
| 698 | const FlatView *new_view, |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 699 | bool adding) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 700 | { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 701 | unsigned iold, inew; |
| 702 | FlatRange *frold, *frnew; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 703 | |
| 704 | /* Generate a symmetric difference of the old and new memory maps. |
| 705 | * Kill ranges in the old map, and instantiate ranges in the new map. |
| 706 | */ |
| 707 | iold = inew = 0; |
Paolo Bonzini | a9a0c06 | 2013-05-06 10:29:07 +0200 | [diff] [blame] | 708 | while (iold < old_view->nr || inew < new_view->nr) { |
| 709 | if (iold < old_view->nr) { |
| 710 | frold = &old_view->ranges[iold]; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 711 | } else { |
| 712 | frold = NULL; |
| 713 | } |
Paolo Bonzini | a9a0c06 | 2013-05-06 10:29:07 +0200 | [diff] [blame] | 714 | if (inew < new_view->nr) { |
| 715 | frnew = &new_view->ranges[inew]; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 716 | } else { |
| 717 | frnew = NULL; |
| 718 | } |
| 719 | |
| 720 | if (frold |
| 721 | && (!frnew |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 722 | || int128_lt(frold->addr.start, frnew->addr.start) |
| 723 | || (int128_eq(frold->addr.start, frnew->addr.start) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 724 | && !flatrange_equal(frold, frnew)))) { |
Peter Crosthwaite | 41a6e47 | 2013-06-03 15:32:42 +1000 | [diff] [blame] | 725 | /* In old but not in new, or in both but attributes changed. */ |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 726 | |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 727 | if (!adding) { |
Avi Kivity | 72e22d2 | 2012-02-08 15:05:50 +0200 | [diff] [blame] | 728 | MEMORY_LISTENER_UPDATE_REGION(frold, as, Reverse, region_del); |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 729 | } |
| 730 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 731 | ++iold; |
| 732 | } else if (frold && frnew && flatrange_equal(frold, frnew)) { |
Peter Crosthwaite | 41a6e47 | 2013-06-03 15:32:42 +1000 | [diff] [blame] | 733 | /* In both and unchanged (except logging may have changed) */ |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 734 | |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 735 | if (adding) { |
Avi Kivity | 50c1e14 | 2012-02-08 21:36:02 +0200 | [diff] [blame] | 736 | MEMORY_LISTENER_UPDATE_REGION(frnew, as, Forward, region_nop); |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 737 | if (frold->dirty_log_mask && !frnew->dirty_log_mask) { |
Avi Kivity | 72e22d2 | 2012-02-08 15:05:50 +0200 | [diff] [blame] | 738 | MEMORY_LISTENER_UPDATE_REGION(frnew, as, Reverse, log_stop); |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 739 | } else if (frnew->dirty_log_mask && !frold->dirty_log_mask) { |
Avi Kivity | 72e22d2 | 2012-02-08 15:05:50 +0200 | [diff] [blame] | 740 | MEMORY_LISTENER_UPDATE_REGION(frnew, as, Forward, log_start); |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 741 | } |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 742 | } |
| 743 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 744 | ++iold; |
| 745 | ++inew; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 746 | } else { |
| 747 | /* In new */ |
| 748 | |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 749 | if (adding) { |
Avi Kivity | 72e22d2 | 2012-02-08 15:05:50 +0200 | [diff] [blame] | 750 | MEMORY_LISTENER_UPDATE_REGION(frnew, as, Forward, region_add); |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 751 | } |
| 752 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 753 | ++inew; |
| 754 | } |
| 755 | } |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 756 | } |
| 757 | |
| 758 | |
| 759 | static void address_space_update_topology(AddressSpace *as) |
| 760 | { |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 761 | FlatView *old_view = address_space_get_flatview(as); |
Paolo Bonzini | a9a0c06 | 2013-05-06 10:29:07 +0200 | [diff] [blame] | 762 | FlatView *new_view = generate_memory_topology(as->root); |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 763 | |
| 764 | address_space_update_topology_pass(as, old_view, new_view, false); |
| 765 | address_space_update_topology_pass(as, old_view, new_view, true); |
| 766 | |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 767 | qemu_mutex_lock(&flat_view_mutex); |
| 768 | flatview_unref(as->current_map); |
Paolo Bonzini | a9a0c06 | 2013-05-06 10:29:07 +0200 | [diff] [blame] | 769 | as->current_map = new_view; |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 770 | qemu_mutex_unlock(&flat_view_mutex); |
| 771 | |
| 772 | /* Note that all the old MemoryRegions are still alive up to this |
| 773 | * point. This relieves most MemoryListeners from the need to |
| 774 | * ref/unref the MemoryRegions they get---unless they use them |
| 775 | * outside the iothread mutex, in which case precise reference |
| 776 | * counting is necessary. |
| 777 | */ |
| 778 | flatview_unref(old_view); |
| 779 | |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 780 | address_space_update_ioeventfds(as); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 781 | } |
| 782 | |
Avi Kivity | 4ef4db8 | 2011-07-26 14:26:13 +0300 | [diff] [blame] | 783 | void memory_region_transaction_begin(void) |
| 784 | { |
Jan Kiszka | bb880de | 2012-08-23 13:02:32 +0200 | [diff] [blame] | 785 | qemu_flush_coalesced_mmio_buffer(); |
Avi Kivity | 4ef4db8 | 2011-07-26 14:26:13 +0300 | [diff] [blame] | 786 | ++memory_region_transaction_depth; |
| 787 | } |
| 788 | |
| 789 | void memory_region_transaction_commit(void) |
| 790 | { |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 791 | AddressSpace *as; |
| 792 | |
Avi Kivity | 4ef4db8 | 2011-07-26 14:26:13 +0300 | [diff] [blame] | 793 | assert(memory_region_transaction_depth); |
| 794 | --memory_region_transaction_depth; |
Jan Kiszka | 22bde71 | 2012-11-05 16:45:56 +0100 | [diff] [blame] | 795 | if (!memory_region_transaction_depth && memory_region_update_pending) { |
| 796 | memory_region_update_pending = false; |
Jan Kiszka | 02e2b95 | 2012-08-23 13:02:31 +0200 | [diff] [blame] | 797 | MEMORY_LISTENER_CALL_GLOBAL(begin, Forward); |
| 798 | |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 799 | QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) { |
| 800 | address_space_update_topology(as); |
Jan Kiszka | 02e2b95 | 2012-08-23 13:02:31 +0200 | [diff] [blame] | 801 | } |
| 802 | |
| 803 | MEMORY_LISTENER_CALL_GLOBAL(commit, Forward); |
Avi Kivity | e87c099 | 2011-09-14 12:16:20 +0300 | [diff] [blame] | 804 | } |
Avi Kivity | 4ef4db8 | 2011-07-26 14:26:13 +0300 | [diff] [blame] | 805 | } |
| 806 | |
Avi Kivity | 545e92e | 2011-08-08 19:58:48 +0300 | [diff] [blame] | 807 | static void memory_region_destructor_none(MemoryRegion *mr) |
| 808 | { |
| 809 | } |
| 810 | |
| 811 | static void memory_region_destructor_ram(MemoryRegion *mr) |
| 812 | { |
| 813 | qemu_ram_free(mr->ram_addr); |
| 814 | } |
| 815 | |
Paolo Bonzini | dfde4e6 | 2013-05-06 10:46:11 +0200 | [diff] [blame] | 816 | static void memory_region_destructor_alias(MemoryRegion *mr) |
| 817 | { |
| 818 | memory_region_unref(mr->alias); |
| 819 | } |
| 820 | |
Avi Kivity | 545e92e | 2011-08-08 19:58:48 +0300 | [diff] [blame] | 821 | static void memory_region_destructor_ram_from_ptr(MemoryRegion *mr) |
| 822 | { |
| 823 | qemu_ram_free_from_ptr(mr->ram_addr); |
| 824 | } |
| 825 | |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 826 | static void memory_region_destructor_rom_device(MemoryRegion *mr) |
| 827 | { |
| 828 | qemu_ram_free(mr->ram_addr & TARGET_PAGE_MASK); |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 829 | } |
| 830 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 831 | void memory_region_init(MemoryRegion *mr, |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 832 | Object *owner, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 833 | const char *name, |
| 834 | uint64_t size) |
| 835 | { |
Paolo Bonzini | 2cdfcf2 | 2013-05-24 13:55:52 +0200 | [diff] [blame] | 836 | mr->ops = &unassigned_mem_ops; |
| 837 | mr->opaque = NULL; |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 838 | mr->owner = owner; |
Avi Kivity | 3095115 | 2012-10-30 13:47:46 +0200 | [diff] [blame] | 839 | mr->iommu_ops = NULL; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 840 | mr->parent = NULL; |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 841 | mr->size = int128_make64(size); |
| 842 | if (size == UINT64_MAX) { |
| 843 | mr->size = int128_2_64(); |
| 844 | } |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 845 | mr->addr = 0; |
Avi Kivity | b3b00c7 | 2012-01-02 13:20:11 +0200 | [diff] [blame] | 846 | mr->subpage = false; |
Avi Kivity | 6bba19b | 2011-09-14 11:54:58 +0300 | [diff] [blame] | 847 | mr->enabled = true; |
Avi Kivity | 14a3c10 | 2011-07-26 14:26:06 +0300 | [diff] [blame] | 848 | mr->terminates = false; |
Avi Kivity | 8ea9252 | 2011-12-08 15:58:43 +0200 | [diff] [blame] | 849 | mr->ram = false; |
Jan Kiszka | 5f9a5ea | 2013-05-07 19:04:25 +0200 | [diff] [blame] | 850 | mr->romd_mode = true; |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 851 | mr->readonly = false; |
Avi Kivity | 75c578d | 2012-01-02 15:40:52 +0200 | [diff] [blame] | 852 | mr->rom_device = false; |
Avi Kivity | 545e92e | 2011-08-08 19:58:48 +0300 | [diff] [blame] | 853 | mr->destructor = memory_region_destructor_none; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 854 | mr->priority = 0; |
| 855 | mr->may_overlap = false; |
| 856 | mr->alias = NULL; |
| 857 | QTAILQ_INIT(&mr->subregions); |
| 858 | memset(&mr->subregions_link, 0, sizeof mr->subregions_link); |
| 859 | QTAILQ_INIT(&mr->coalesced); |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 860 | mr->name = g_strdup(name); |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 861 | mr->dirty_log_mask = 0; |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 862 | mr->ioeventfd_nb = 0; |
| 863 | mr->ioeventfds = NULL; |
Jan Kiszka | d410515 | 2012-08-23 13:02:29 +0200 | [diff] [blame] | 864 | mr->flush_coalesced_mmio = false; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 865 | } |
| 866 | |
Paolo Bonzini | b018ddf | 2013-05-24 14:48:38 +0200 | [diff] [blame] | 867 | static uint64_t unassigned_mem_read(void *opaque, hwaddr addr, |
| 868 | unsigned size) |
| 869 | { |
| 870 | #ifdef DEBUG_UNASSIGNED |
| 871 | printf("Unassigned mem read " TARGET_FMT_plx "\n", addr); |
| 872 | #endif |
Andreas Färber | 4917cf4 | 2013-05-27 05:17:50 +0200 | [diff] [blame] | 873 | if (current_cpu != NULL) { |
| 874 | cpu_unassigned_access(current_cpu, addr, false, false, 0, size); |
Andreas Färber | c658b94 | 2013-05-27 06:49:53 +0200 | [diff] [blame] | 875 | } |
Jan Kiszka | 68a7439 | 2013-09-02 18:43:31 +0200 | [diff] [blame] | 876 | return 0; |
Paolo Bonzini | b018ddf | 2013-05-24 14:48:38 +0200 | [diff] [blame] | 877 | } |
| 878 | |
| 879 | static void unassigned_mem_write(void *opaque, hwaddr addr, |
| 880 | uint64_t val, unsigned size) |
| 881 | { |
| 882 | #ifdef DEBUG_UNASSIGNED |
| 883 | printf("Unassigned mem write " TARGET_FMT_plx " = 0x%"PRIx64"\n", addr, val); |
| 884 | #endif |
Andreas Färber | 4917cf4 | 2013-05-27 05:17:50 +0200 | [diff] [blame] | 885 | if (current_cpu != NULL) { |
| 886 | cpu_unassigned_access(current_cpu, addr, true, false, 0, size); |
Andreas Färber | c658b94 | 2013-05-27 06:49:53 +0200 | [diff] [blame] | 887 | } |
Paolo Bonzini | b018ddf | 2013-05-24 14:48:38 +0200 | [diff] [blame] | 888 | } |
| 889 | |
Paolo Bonzini | d197063 | 2013-05-24 13:23:38 +0200 | [diff] [blame] | 890 | static bool unassigned_mem_accepts(void *opaque, hwaddr addr, |
| 891 | unsigned size, bool is_write) |
| 892 | { |
| 893 | return false; |
| 894 | } |
| 895 | |
| 896 | const MemoryRegionOps unassigned_mem_ops = { |
| 897 | .valid.accepts = unassigned_mem_accepts, |
| 898 | .endianness = DEVICE_NATIVE_ENDIAN, |
| 899 | }; |
| 900 | |
Paolo Bonzini | d270203 | 2013-05-24 11:55:06 +0200 | [diff] [blame] | 901 | bool memory_region_access_valid(MemoryRegion *mr, |
| 902 | hwaddr addr, |
| 903 | unsigned size, |
| 904 | bool is_write) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 905 | { |
Paolo Bonzini | a014ed0 | 2013-05-24 17:48:52 +0200 | [diff] [blame] | 906 | int access_size_min, access_size_max; |
| 907 | int access_size, i; |
Avi Kivity | 897fa7c | 2011-11-13 13:05:27 +0200 | [diff] [blame] | 908 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 909 | if (!mr->ops->valid.unaligned && (addr & (size - 1))) { |
| 910 | return false; |
| 911 | } |
| 912 | |
Paolo Bonzini | a014ed0 | 2013-05-24 17:48:52 +0200 | [diff] [blame] | 913 | if (!mr->ops->valid.accepts) { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 914 | return true; |
| 915 | } |
| 916 | |
Paolo Bonzini | a014ed0 | 2013-05-24 17:48:52 +0200 | [diff] [blame] | 917 | access_size_min = mr->ops->valid.min_access_size; |
| 918 | if (!mr->ops->valid.min_access_size) { |
| 919 | access_size_min = 1; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 920 | } |
Paolo Bonzini | a014ed0 | 2013-05-24 17:48:52 +0200 | [diff] [blame] | 921 | |
| 922 | access_size_max = mr->ops->valid.max_access_size; |
| 923 | if (!mr->ops->valid.max_access_size) { |
| 924 | access_size_max = 4; |
| 925 | } |
| 926 | |
| 927 | access_size = MAX(MIN(size, access_size_max), access_size_min); |
| 928 | for (i = 0; i < size; i += access_size) { |
| 929 | if (!mr->ops->valid.accepts(mr->opaque, addr + i, access_size, |
| 930 | is_write)) { |
| 931 | return false; |
| 932 | } |
| 933 | } |
| 934 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 935 | return true; |
| 936 | } |
| 937 | |
Avi Kivity | a621f38 | 2012-01-02 13:12:08 +0200 | [diff] [blame] | 938 | static uint64_t memory_region_dispatch_read1(MemoryRegion *mr, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 939 | hwaddr addr, |
Avi Kivity | a621f38 | 2012-01-02 13:12:08 +0200 | [diff] [blame] | 940 | unsigned size) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 941 | { |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 942 | uint64_t data = 0; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 943 | |
Paolo Bonzini | ce5d2f3 | 2013-05-24 17:45:48 +0200 | [diff] [blame] | 944 | if (mr->ops->read) { |
| 945 | access_with_adjusted_size(addr, &data, size, |
| 946 | mr->ops->impl.min_access_size, |
| 947 | mr->ops->impl.max_access_size, |
| 948 | memory_region_read_accessor, mr); |
| 949 | } else { |
| 950 | access_with_adjusted_size(addr, &data, size, 1, 4, |
| 951 | memory_region_oldmmio_read_accessor, mr); |
Avi Kivity | 74901c3 | 2011-07-26 14:26:10 +0300 | [diff] [blame] | 952 | } |
| 953 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 954 | return data; |
| 955 | } |
| 956 | |
Paolo Bonzini | 791af8c | 2013-05-24 16:10:39 +0200 | [diff] [blame] | 957 | static bool memory_region_dispatch_read(MemoryRegion *mr, |
| 958 | hwaddr addr, |
| 959 | uint64_t *pval, |
| 960 | unsigned size) |
Avi Kivity | a621f38 | 2012-01-02 13:12:08 +0200 | [diff] [blame] | 961 | { |
Paolo Bonzini | 791af8c | 2013-05-24 16:10:39 +0200 | [diff] [blame] | 962 | if (!memory_region_access_valid(mr, addr, size, false)) { |
| 963 | *pval = unassigned_mem_read(mr, addr, size); |
| 964 | return true; |
| 965 | } |
Avi Kivity | a621f38 | 2012-01-02 13:12:08 +0200 | [diff] [blame] | 966 | |
Paolo Bonzini | 791af8c | 2013-05-24 16:10:39 +0200 | [diff] [blame] | 967 | *pval = memory_region_dispatch_read1(mr, addr, size); |
| 968 | adjust_endianness(mr, pval, size); |
| 969 | return false; |
Avi Kivity | a621f38 | 2012-01-02 13:12:08 +0200 | [diff] [blame] | 970 | } |
| 971 | |
Paolo Bonzini | 791af8c | 2013-05-24 16:10:39 +0200 | [diff] [blame] | 972 | static bool memory_region_dispatch_write(MemoryRegion *mr, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 973 | hwaddr addr, |
Avi Kivity | a621f38 | 2012-01-02 13:12:08 +0200 | [diff] [blame] | 974 | uint64_t data, |
| 975 | unsigned size) |
| 976 | { |
Avi Kivity | 897fa7c | 2011-11-13 13:05:27 +0200 | [diff] [blame] | 977 | if (!memory_region_access_valid(mr, addr, size, true)) { |
Paolo Bonzini | b018ddf | 2013-05-24 14:48:38 +0200 | [diff] [blame] | 978 | unassigned_mem_write(mr, addr, data, size); |
Paolo Bonzini | 791af8c | 2013-05-24 16:10:39 +0200 | [diff] [blame] | 979 | return true; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 980 | } |
| 981 | |
Avi Kivity | a621f38 | 2012-01-02 13:12:08 +0200 | [diff] [blame] | 982 | adjust_endianness(mr, &data, size); |
| 983 | |
Paolo Bonzini | ce5d2f3 | 2013-05-24 17:45:48 +0200 | [diff] [blame] | 984 | if (mr->ops->write) { |
| 985 | access_with_adjusted_size(addr, &data, size, |
| 986 | mr->ops->impl.min_access_size, |
| 987 | mr->ops->impl.max_access_size, |
| 988 | memory_region_write_accessor, mr); |
| 989 | } else { |
| 990 | access_with_adjusted_size(addr, &data, size, 1, 4, |
| 991 | memory_region_oldmmio_write_accessor, mr); |
Avi Kivity | 74901c3 | 2011-07-26 14:26:10 +0300 | [diff] [blame] | 992 | } |
Paolo Bonzini | 791af8c | 2013-05-24 16:10:39 +0200 | [diff] [blame] | 993 | return false; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 994 | } |
| 995 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 996 | void memory_region_init_io(MemoryRegion *mr, |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 997 | Object *owner, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 998 | const MemoryRegionOps *ops, |
| 999 | void *opaque, |
| 1000 | const char *name, |
| 1001 | uint64_t size) |
| 1002 | { |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 1003 | memory_region_init(mr, owner, name, size); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1004 | mr->ops = ops; |
| 1005 | mr->opaque = opaque; |
Avi Kivity | 14a3c10 | 2011-07-26 14:26:06 +0300 | [diff] [blame] | 1006 | mr->terminates = true; |
Avi Kivity | 97161e1 | 2012-03-08 19:16:39 +0200 | [diff] [blame] | 1007 | mr->ram_addr = ~(ram_addr_t)0; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1008 | } |
| 1009 | |
| 1010 | void memory_region_init_ram(MemoryRegion *mr, |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 1011 | Object *owner, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1012 | const char *name, |
| 1013 | uint64_t size) |
| 1014 | { |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 1015 | memory_region_init(mr, owner, name, size); |
Avi Kivity | 8ea9252 | 2011-12-08 15:58:43 +0200 | [diff] [blame] | 1016 | mr->ram = true; |
Avi Kivity | 14a3c10 | 2011-07-26 14:26:06 +0300 | [diff] [blame] | 1017 | mr->terminates = true; |
Avi Kivity | 545e92e | 2011-08-08 19:58:48 +0300 | [diff] [blame] | 1018 | mr->destructor = memory_region_destructor_ram; |
Avi Kivity | c5705a7 | 2011-12-20 15:59:12 +0200 | [diff] [blame] | 1019 | mr->ram_addr = qemu_ram_alloc(size, mr); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1020 | } |
| 1021 | |
| 1022 | void memory_region_init_ram_ptr(MemoryRegion *mr, |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 1023 | Object *owner, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1024 | const char *name, |
| 1025 | uint64_t size, |
| 1026 | void *ptr) |
| 1027 | { |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 1028 | memory_region_init(mr, owner, name, size); |
Avi Kivity | 8ea9252 | 2011-12-08 15:58:43 +0200 | [diff] [blame] | 1029 | mr->ram = true; |
Avi Kivity | 14a3c10 | 2011-07-26 14:26:06 +0300 | [diff] [blame] | 1030 | mr->terminates = true; |
Avi Kivity | 545e92e | 2011-08-08 19:58:48 +0300 | [diff] [blame] | 1031 | mr->destructor = memory_region_destructor_ram_from_ptr; |
Avi Kivity | c5705a7 | 2011-12-20 15:59:12 +0200 | [diff] [blame] | 1032 | mr->ram_addr = qemu_ram_alloc_from_ptr(size, ptr, mr); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1033 | } |
| 1034 | |
| 1035 | void memory_region_init_alias(MemoryRegion *mr, |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 1036 | Object *owner, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1037 | const char *name, |
| 1038 | MemoryRegion *orig, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1039 | hwaddr offset, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1040 | uint64_t size) |
| 1041 | { |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 1042 | memory_region_init(mr, owner, name, size); |
Paolo Bonzini | dfde4e6 | 2013-05-06 10:46:11 +0200 | [diff] [blame] | 1043 | memory_region_ref(orig); |
| 1044 | mr->destructor = memory_region_destructor_alias; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1045 | mr->alias = orig; |
| 1046 | mr->alias_offset = offset; |
| 1047 | } |
| 1048 | |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 1049 | void memory_region_init_rom_device(MemoryRegion *mr, |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 1050 | Object *owner, |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 1051 | const MemoryRegionOps *ops, |
Avi Kivity | 75f5941 | 2011-08-26 00:35:15 +0300 | [diff] [blame] | 1052 | void *opaque, |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 1053 | const char *name, |
| 1054 | uint64_t size) |
| 1055 | { |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 1056 | memory_region_init(mr, owner, name, size); |
Avi Kivity | 7bc2b9c | 2011-08-25 14:56:14 +0300 | [diff] [blame] | 1057 | mr->ops = ops; |
Avi Kivity | 75f5941 | 2011-08-26 00:35:15 +0300 | [diff] [blame] | 1058 | mr->opaque = opaque; |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 1059 | mr->terminates = true; |
Avi Kivity | 75c578d | 2012-01-02 15:40:52 +0200 | [diff] [blame] | 1060 | mr->rom_device = true; |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 1061 | mr->destructor = memory_region_destructor_rom_device; |
Avi Kivity | c5705a7 | 2011-12-20 15:59:12 +0200 | [diff] [blame] | 1062 | mr->ram_addr = qemu_ram_alloc(size, mr); |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 1063 | } |
| 1064 | |
Avi Kivity | 3095115 | 2012-10-30 13:47:46 +0200 | [diff] [blame] | 1065 | void memory_region_init_iommu(MemoryRegion *mr, |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 1066 | Object *owner, |
Avi Kivity | 3095115 | 2012-10-30 13:47:46 +0200 | [diff] [blame] | 1067 | const MemoryRegionIOMMUOps *ops, |
| 1068 | const char *name, |
| 1069 | uint64_t size) |
| 1070 | { |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 1071 | memory_region_init(mr, owner, name, size); |
Avi Kivity | 3095115 | 2012-10-30 13:47:46 +0200 | [diff] [blame] | 1072 | mr->iommu_ops = ops, |
| 1073 | mr->terminates = true; /* then re-forwards */ |
David Gibson | 0686657 | 2013-05-14 19:13:56 +1000 | [diff] [blame] | 1074 | notifier_list_init(&mr->iommu_notify); |
Avi Kivity | 3095115 | 2012-10-30 13:47:46 +0200 | [diff] [blame] | 1075 | } |
| 1076 | |
Jan Kiszka | 1660e72 | 2011-10-23 16:01:19 +0200 | [diff] [blame] | 1077 | void memory_region_init_reservation(MemoryRegion *mr, |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 1078 | Object *owner, |
Jan Kiszka | 1660e72 | 2011-10-23 16:01:19 +0200 | [diff] [blame] | 1079 | const char *name, |
| 1080 | uint64_t size) |
| 1081 | { |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 1082 | memory_region_init_io(mr, owner, &unassigned_mem_ops, mr, name, size); |
Jan Kiszka | 1660e72 | 2011-10-23 16:01:19 +0200 | [diff] [blame] | 1083 | } |
| 1084 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1085 | void memory_region_destroy(MemoryRegion *mr) |
| 1086 | { |
| 1087 | assert(QTAILQ_EMPTY(&mr->subregions)); |
Avi Kivity | 2be0e25 | 2012-10-17 17:14:41 +0200 | [diff] [blame] | 1088 | assert(memory_region_transaction_depth == 0); |
Avi Kivity | 545e92e | 2011-08-08 19:58:48 +0300 | [diff] [blame] | 1089 | mr->destructor(mr); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1090 | memory_region_clear_coalescing(mr); |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1091 | g_free((char *)mr->name); |
| 1092 | g_free(mr->ioeventfds); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1093 | } |
| 1094 | |
Paolo Bonzini | 803c081 | 2013-05-07 06:59:09 +0200 | [diff] [blame] | 1095 | Object *memory_region_owner(MemoryRegion *mr) |
| 1096 | { |
| 1097 | return mr->owner; |
| 1098 | } |
| 1099 | |
Paolo Bonzini | 46637be | 2013-05-07 09:06:00 +0200 | [diff] [blame] | 1100 | void memory_region_ref(MemoryRegion *mr) |
| 1101 | { |
| 1102 | if (mr && mr->owner) { |
| 1103 | object_ref(mr->owner); |
| 1104 | } |
| 1105 | } |
| 1106 | |
| 1107 | void memory_region_unref(MemoryRegion *mr) |
| 1108 | { |
| 1109 | if (mr && mr->owner) { |
| 1110 | object_unref(mr->owner); |
| 1111 | } |
| 1112 | } |
| 1113 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1114 | uint64_t memory_region_size(MemoryRegion *mr) |
| 1115 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1116 | if (int128_eq(mr->size, int128_2_64())) { |
| 1117 | return UINT64_MAX; |
| 1118 | } |
| 1119 | return int128_get64(mr->size); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1120 | } |
| 1121 | |
Avi Kivity | 8991c79 | 2011-12-20 15:53:11 +0200 | [diff] [blame] | 1122 | const char *memory_region_name(MemoryRegion *mr) |
| 1123 | { |
| 1124 | return mr->name; |
| 1125 | } |
| 1126 | |
Avi Kivity | 8ea9252 | 2011-12-08 15:58:43 +0200 | [diff] [blame] | 1127 | bool memory_region_is_ram(MemoryRegion *mr) |
| 1128 | { |
| 1129 | return mr->ram; |
| 1130 | } |
| 1131 | |
Avi Kivity | 55043ba | 2011-12-15 17:20:34 +0200 | [diff] [blame] | 1132 | bool memory_region_is_logging(MemoryRegion *mr) |
| 1133 | { |
| 1134 | return mr->dirty_log_mask; |
| 1135 | } |
| 1136 | |
Avi Kivity | ce7923d | 2011-12-08 16:05:11 +0200 | [diff] [blame] | 1137 | bool memory_region_is_rom(MemoryRegion *mr) |
| 1138 | { |
| 1139 | return mr->ram && mr->readonly; |
| 1140 | } |
| 1141 | |
Avi Kivity | 3095115 | 2012-10-30 13:47:46 +0200 | [diff] [blame] | 1142 | bool memory_region_is_iommu(MemoryRegion *mr) |
| 1143 | { |
| 1144 | return mr->iommu_ops; |
| 1145 | } |
| 1146 | |
David Gibson | 0686657 | 2013-05-14 19:13:56 +1000 | [diff] [blame] | 1147 | void memory_region_register_iommu_notifier(MemoryRegion *mr, Notifier *n) |
| 1148 | { |
| 1149 | notifier_list_add(&mr->iommu_notify, n); |
| 1150 | } |
| 1151 | |
| 1152 | void memory_region_unregister_iommu_notifier(Notifier *n) |
| 1153 | { |
| 1154 | notifier_remove(n); |
| 1155 | } |
| 1156 | |
| 1157 | void memory_region_notify_iommu(MemoryRegion *mr, |
| 1158 | IOMMUTLBEntry entry) |
| 1159 | { |
| 1160 | assert(memory_region_is_iommu(mr)); |
| 1161 | notifier_list_notify(&mr->iommu_notify, &entry); |
| 1162 | } |
| 1163 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1164 | void memory_region_set_log(MemoryRegion *mr, bool log, unsigned client) |
| 1165 | { |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 1166 | uint8_t mask = 1 << client; |
| 1167 | |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1168 | memory_region_transaction_begin(); |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 1169 | mr->dirty_log_mask = (mr->dirty_log_mask & ~mask) | (log * mask); |
Jan Kiszka | 22bde71 | 2012-11-05 16:45:56 +0100 | [diff] [blame] | 1170 | memory_region_update_pending |= mr->enabled; |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1171 | memory_region_transaction_commit(); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1172 | } |
| 1173 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1174 | bool memory_region_get_dirty(MemoryRegion *mr, hwaddr addr, |
| 1175 | hwaddr size, unsigned client) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1176 | { |
Avi Kivity | 14a3c10 | 2011-07-26 14:26:06 +0300 | [diff] [blame] | 1177 | assert(mr->terminates); |
Juan Quintela | 5215919 | 2013-10-08 12:44:04 +0200 | [diff] [blame] | 1178 | return cpu_physical_memory_get_dirty(mr->ram_addr + addr, size, client); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1179 | } |
| 1180 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1181 | void memory_region_set_dirty(MemoryRegion *mr, hwaddr addr, |
| 1182 | hwaddr size) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1183 | { |
Avi Kivity | 14a3c10 | 2011-07-26 14:26:06 +0300 | [diff] [blame] | 1184 | assert(mr->terminates); |
Juan Quintela | 75218e7 | 2013-10-08 12:31:54 +0200 | [diff] [blame] | 1185 | cpu_physical_memory_set_dirty_range(mr->ram_addr + addr, size); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1186 | } |
| 1187 | |
Juan Quintela | 6c279db | 2012-10-17 20:24:28 +0200 | [diff] [blame] | 1188 | bool memory_region_test_and_clear_dirty(MemoryRegion *mr, hwaddr addr, |
| 1189 | hwaddr size, unsigned client) |
| 1190 | { |
| 1191 | bool ret; |
| 1192 | assert(mr->terminates); |
Juan Quintela | 5215919 | 2013-10-08 12:44:04 +0200 | [diff] [blame] | 1193 | ret = cpu_physical_memory_get_dirty(mr->ram_addr + addr, size, client); |
Juan Quintela | 6c279db | 2012-10-17 20:24:28 +0200 | [diff] [blame] | 1194 | if (ret) { |
Juan Quintela | a2f4d5b | 2013-10-10 11:49:53 +0200 | [diff] [blame] | 1195 | cpu_physical_memory_reset_dirty(mr->ram_addr + addr, size, client); |
Juan Quintela | 6c279db | 2012-10-17 20:24:28 +0200 | [diff] [blame] | 1196 | } |
| 1197 | return ret; |
| 1198 | } |
| 1199 | |
| 1200 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1201 | void memory_region_sync_dirty_bitmap(MemoryRegion *mr) |
| 1202 | { |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 1203 | AddressSpace *as; |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 1204 | FlatRange *fr; |
| 1205 | |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 1206 | QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) { |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 1207 | FlatView *view = address_space_get_flatview(as); |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 1208 | FOR_EACH_FLAT_RANGE(fr, view) { |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 1209 | if (fr->mr == mr) { |
| 1210 | MEMORY_LISTENER_UPDATE_REGION(fr, as, Forward, log_sync); |
| 1211 | } |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 1212 | } |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 1213 | flatview_unref(view); |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 1214 | } |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1215 | } |
| 1216 | |
| 1217 | void memory_region_set_readonly(MemoryRegion *mr, bool readonly) |
| 1218 | { |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 1219 | if (mr->readonly != readonly) { |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1220 | memory_region_transaction_begin(); |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 1221 | mr->readonly = readonly; |
Jan Kiszka | 22bde71 | 2012-11-05 16:45:56 +0100 | [diff] [blame] | 1222 | memory_region_update_pending |= mr->enabled; |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1223 | memory_region_transaction_commit(); |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 1224 | } |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1225 | } |
| 1226 | |
Jan Kiszka | 5f9a5ea | 2013-05-07 19:04:25 +0200 | [diff] [blame] | 1227 | void memory_region_rom_device_set_romd(MemoryRegion *mr, bool romd_mode) |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 1228 | { |
Jan Kiszka | 5f9a5ea | 2013-05-07 19:04:25 +0200 | [diff] [blame] | 1229 | if (mr->romd_mode != romd_mode) { |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1230 | memory_region_transaction_begin(); |
Jan Kiszka | 5f9a5ea | 2013-05-07 19:04:25 +0200 | [diff] [blame] | 1231 | mr->romd_mode = romd_mode; |
Jan Kiszka | 22bde71 | 2012-11-05 16:45:56 +0100 | [diff] [blame] | 1232 | memory_region_update_pending |= mr->enabled; |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1233 | memory_region_transaction_commit(); |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 1234 | } |
| 1235 | } |
| 1236 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1237 | void memory_region_reset_dirty(MemoryRegion *mr, hwaddr addr, |
| 1238 | hwaddr size, unsigned client) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1239 | { |
Avi Kivity | 14a3c10 | 2011-07-26 14:26:06 +0300 | [diff] [blame] | 1240 | assert(mr->terminates); |
Juan Quintela | a2f4d5b | 2013-10-10 11:49:53 +0200 | [diff] [blame] | 1241 | cpu_physical_memory_reset_dirty(mr->ram_addr + addr, size, client); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1242 | } |
| 1243 | |
| 1244 | void *memory_region_get_ram_ptr(MemoryRegion *mr) |
| 1245 | { |
| 1246 | if (mr->alias) { |
| 1247 | return memory_region_get_ram_ptr(mr->alias) + mr->alias_offset; |
| 1248 | } |
| 1249 | |
Avi Kivity | 14a3c10 | 2011-07-26 14:26:06 +0300 | [diff] [blame] | 1250 | assert(mr->terminates); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1251 | |
Jan Kiszka | 021d26d | 2011-08-30 00:38:24 +0200 | [diff] [blame] | 1252 | return qemu_get_ram_ptr(mr->ram_addr & TARGET_PAGE_MASK); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1253 | } |
| 1254 | |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 1255 | static void memory_region_update_coalesced_range_as(MemoryRegion *mr, AddressSpace *as) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1256 | { |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 1257 | FlatView *view; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1258 | FlatRange *fr; |
| 1259 | CoalescedMemoryRange *cmr; |
| 1260 | AddrRange tmp; |
Avi Kivity | 95d2994 | 2012-10-02 18:21:54 +0200 | [diff] [blame] | 1261 | MemoryRegionSection section; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1262 | |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 1263 | view = address_space_get_flatview(as); |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 1264 | FOR_EACH_FLAT_RANGE(fr, view) { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1265 | if (fr->mr == mr) { |
Avi Kivity | 95d2994 | 2012-10-02 18:21:54 +0200 | [diff] [blame] | 1266 | section = (MemoryRegionSection) { |
Avi Kivity | f6790af | 2012-10-02 20:13:51 +0200 | [diff] [blame] | 1267 | .address_space = as, |
Avi Kivity | 95d2994 | 2012-10-02 18:21:54 +0200 | [diff] [blame] | 1268 | .offset_within_address_space = int128_get64(fr->addr.start), |
Paolo Bonzini | 052e87b | 2013-05-27 10:08:27 +0200 | [diff] [blame] | 1269 | .size = fr->addr.size, |
Avi Kivity | 95d2994 | 2012-10-02 18:21:54 +0200 | [diff] [blame] | 1270 | }; |
| 1271 | |
| 1272 | MEMORY_LISTENER_CALL(coalesced_mmio_del, Reverse, §ion, |
| 1273 | int128_get64(fr->addr.start), |
| 1274 | int128_get64(fr->addr.size)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1275 | QTAILQ_FOREACH(cmr, &mr->coalesced, link) { |
| 1276 | tmp = addrrange_shift(cmr->addr, |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1277 | int128_sub(fr->addr.start, |
| 1278 | int128_make64(fr->offset_in_region))); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1279 | if (!addrrange_intersects(tmp, fr->addr)) { |
| 1280 | continue; |
| 1281 | } |
| 1282 | tmp = addrrange_intersection(tmp, fr->addr); |
Avi Kivity | 95d2994 | 2012-10-02 18:21:54 +0200 | [diff] [blame] | 1283 | MEMORY_LISTENER_CALL(coalesced_mmio_add, Forward, §ion, |
| 1284 | int128_get64(tmp.start), |
| 1285 | int128_get64(tmp.size)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1286 | } |
| 1287 | } |
| 1288 | } |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 1289 | flatview_unref(view); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1290 | } |
| 1291 | |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 1292 | static void memory_region_update_coalesced_range(MemoryRegion *mr) |
| 1293 | { |
| 1294 | AddressSpace *as; |
| 1295 | |
| 1296 | QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) { |
| 1297 | memory_region_update_coalesced_range_as(mr, as); |
| 1298 | } |
| 1299 | } |
| 1300 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1301 | void memory_region_set_coalescing(MemoryRegion *mr) |
| 1302 | { |
| 1303 | memory_region_clear_coalescing(mr); |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1304 | memory_region_add_coalescing(mr, 0, int128_get64(mr->size)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1305 | } |
| 1306 | |
| 1307 | void memory_region_add_coalescing(MemoryRegion *mr, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1308 | hwaddr offset, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1309 | uint64_t size) |
| 1310 | { |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1311 | CoalescedMemoryRange *cmr = g_malloc(sizeof(*cmr)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1312 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1313 | cmr->addr = addrrange_make(int128_make64(offset), int128_make64(size)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1314 | QTAILQ_INSERT_TAIL(&mr->coalesced, cmr, link); |
| 1315 | memory_region_update_coalesced_range(mr); |
Jan Kiszka | d410515 | 2012-08-23 13:02:29 +0200 | [diff] [blame] | 1316 | memory_region_set_flush_coalesced(mr); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1317 | } |
| 1318 | |
| 1319 | void memory_region_clear_coalescing(MemoryRegion *mr) |
| 1320 | { |
| 1321 | CoalescedMemoryRange *cmr; |
| 1322 | |
Jan Kiszka | d410515 | 2012-08-23 13:02:29 +0200 | [diff] [blame] | 1323 | qemu_flush_coalesced_mmio_buffer(); |
| 1324 | mr->flush_coalesced_mmio = false; |
| 1325 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1326 | while (!QTAILQ_EMPTY(&mr->coalesced)) { |
| 1327 | cmr = QTAILQ_FIRST(&mr->coalesced); |
| 1328 | QTAILQ_REMOVE(&mr->coalesced, cmr, link); |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1329 | g_free(cmr); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1330 | } |
| 1331 | memory_region_update_coalesced_range(mr); |
| 1332 | } |
| 1333 | |
Jan Kiszka | d410515 | 2012-08-23 13:02:29 +0200 | [diff] [blame] | 1334 | void memory_region_set_flush_coalesced(MemoryRegion *mr) |
| 1335 | { |
| 1336 | mr->flush_coalesced_mmio = true; |
| 1337 | } |
| 1338 | |
| 1339 | void memory_region_clear_flush_coalesced(MemoryRegion *mr) |
| 1340 | { |
| 1341 | qemu_flush_coalesced_mmio_buffer(); |
| 1342 | if (QTAILQ_EMPTY(&mr->coalesced)) { |
| 1343 | mr->flush_coalesced_mmio = false; |
| 1344 | } |
| 1345 | } |
| 1346 | |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1347 | void memory_region_add_eventfd(MemoryRegion *mr, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1348 | hwaddr addr, |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1349 | unsigned size, |
| 1350 | bool match_data, |
| 1351 | uint64_t data, |
Paolo Bonzini | 753d5e1 | 2012-07-05 17:16:27 +0200 | [diff] [blame] | 1352 | EventNotifier *e) |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1353 | { |
| 1354 | MemoryRegionIoeventfd mrfd = { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1355 | .addr.start = int128_make64(addr), |
| 1356 | .addr.size = int128_make64(size), |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1357 | .match_data = match_data, |
| 1358 | .data = data, |
Paolo Bonzini | 753d5e1 | 2012-07-05 17:16:27 +0200 | [diff] [blame] | 1359 | .e = e, |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1360 | }; |
| 1361 | unsigned i; |
| 1362 | |
Alexander Graf | 28f362b | 2012-10-15 20:30:28 +0200 | [diff] [blame] | 1363 | adjust_endianness(mr, &mrfd.data, size); |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1364 | memory_region_transaction_begin(); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1365 | for (i = 0; i < mr->ioeventfd_nb; ++i) { |
| 1366 | if (memory_region_ioeventfd_before(mrfd, mr->ioeventfds[i])) { |
| 1367 | break; |
| 1368 | } |
| 1369 | } |
| 1370 | ++mr->ioeventfd_nb; |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1371 | mr->ioeventfds = g_realloc(mr->ioeventfds, |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1372 | sizeof(*mr->ioeventfds) * mr->ioeventfd_nb); |
| 1373 | memmove(&mr->ioeventfds[i+1], &mr->ioeventfds[i], |
| 1374 | sizeof(*mr->ioeventfds) * (mr->ioeventfd_nb-1 - i)); |
| 1375 | mr->ioeventfds[i] = mrfd; |
Jan Kiszka | 22bde71 | 2012-11-05 16:45:56 +0100 | [diff] [blame] | 1376 | memory_region_update_pending |= mr->enabled; |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1377 | memory_region_transaction_commit(); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1378 | } |
| 1379 | |
| 1380 | void memory_region_del_eventfd(MemoryRegion *mr, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1381 | hwaddr addr, |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1382 | unsigned size, |
| 1383 | bool match_data, |
| 1384 | uint64_t data, |
Paolo Bonzini | 753d5e1 | 2012-07-05 17:16:27 +0200 | [diff] [blame] | 1385 | EventNotifier *e) |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1386 | { |
| 1387 | MemoryRegionIoeventfd mrfd = { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1388 | .addr.start = int128_make64(addr), |
| 1389 | .addr.size = int128_make64(size), |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1390 | .match_data = match_data, |
| 1391 | .data = data, |
Paolo Bonzini | 753d5e1 | 2012-07-05 17:16:27 +0200 | [diff] [blame] | 1392 | .e = e, |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1393 | }; |
| 1394 | unsigned i; |
| 1395 | |
Alexander Graf | 28f362b | 2012-10-15 20:30:28 +0200 | [diff] [blame] | 1396 | adjust_endianness(mr, &mrfd.data, size); |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1397 | memory_region_transaction_begin(); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1398 | for (i = 0; i < mr->ioeventfd_nb; ++i) { |
| 1399 | if (memory_region_ioeventfd_equal(mrfd, mr->ioeventfds[i])) { |
| 1400 | break; |
| 1401 | } |
| 1402 | } |
| 1403 | assert(i != mr->ioeventfd_nb); |
| 1404 | memmove(&mr->ioeventfds[i], &mr->ioeventfds[i+1], |
| 1405 | sizeof(*mr->ioeventfds) * (mr->ioeventfd_nb - (i+1))); |
| 1406 | --mr->ioeventfd_nb; |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1407 | mr->ioeventfds = g_realloc(mr->ioeventfds, |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1408 | sizeof(*mr->ioeventfds)*mr->ioeventfd_nb + 1); |
Jan Kiszka | 22bde71 | 2012-11-05 16:45:56 +0100 | [diff] [blame] | 1409 | memory_region_update_pending |= mr->enabled; |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1410 | memory_region_transaction_commit(); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1411 | } |
| 1412 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1413 | static void memory_region_add_subregion_common(MemoryRegion *mr, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1414 | hwaddr offset, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1415 | MemoryRegion *subregion) |
| 1416 | { |
| 1417 | MemoryRegion *other; |
| 1418 | |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1419 | memory_region_transaction_begin(); |
| 1420 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1421 | assert(!subregion->parent); |
Paolo Bonzini | dfde4e6 | 2013-05-06 10:46:11 +0200 | [diff] [blame] | 1422 | memory_region_ref(subregion); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1423 | subregion->parent = mr; |
| 1424 | subregion->addr = offset; |
| 1425 | QTAILQ_FOREACH(other, &mr->subregions, subregions_link) { |
| 1426 | if (subregion->may_overlap || other->may_overlap) { |
| 1427 | continue; |
| 1428 | } |
Hu Tao | 2c7cfd6 | 2013-03-15 14:32:01 +0800 | [diff] [blame] | 1429 | if (int128_ge(int128_make64(offset), |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1430 | int128_add(int128_make64(other->addr), other->size)) |
| 1431 | || int128_le(int128_add(int128_make64(offset), subregion->size), |
| 1432 | int128_make64(other->addr))) { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1433 | continue; |
| 1434 | } |
Anthony Liguori | a5e1cbc | 2011-08-22 11:14:56 -0500 | [diff] [blame] | 1435 | #if 0 |
Michael Walle | 860329b | 2011-09-15 23:16:49 +0200 | [diff] [blame] | 1436 | printf("warning: subregion collision %llx/%llx (%s) " |
| 1437 | "vs %llx/%llx (%s)\n", |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1438 | (unsigned long long)offset, |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1439 | (unsigned long long)int128_get64(subregion->size), |
Michael Walle | 860329b | 2011-09-15 23:16:49 +0200 | [diff] [blame] | 1440 | subregion->name, |
| 1441 | (unsigned long long)other->addr, |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1442 | (unsigned long long)int128_get64(other->size), |
Michael Walle | 860329b | 2011-09-15 23:16:49 +0200 | [diff] [blame] | 1443 | other->name); |
Anthony Liguori | a5e1cbc | 2011-08-22 11:14:56 -0500 | [diff] [blame] | 1444 | #endif |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1445 | } |
| 1446 | QTAILQ_FOREACH(other, &mr->subregions, subregions_link) { |
| 1447 | if (subregion->priority >= other->priority) { |
| 1448 | QTAILQ_INSERT_BEFORE(other, subregion, subregions_link); |
| 1449 | goto done; |
| 1450 | } |
| 1451 | } |
| 1452 | QTAILQ_INSERT_TAIL(&mr->subregions, subregion, subregions_link); |
| 1453 | done: |
Jan Kiszka | 22bde71 | 2012-11-05 16:45:56 +0100 | [diff] [blame] | 1454 | memory_region_update_pending |= mr->enabled && subregion->enabled; |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1455 | memory_region_transaction_commit(); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1456 | } |
| 1457 | |
| 1458 | |
| 1459 | void memory_region_add_subregion(MemoryRegion *mr, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1460 | hwaddr offset, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1461 | MemoryRegion *subregion) |
| 1462 | { |
| 1463 | subregion->may_overlap = false; |
| 1464 | subregion->priority = 0; |
| 1465 | memory_region_add_subregion_common(mr, offset, subregion); |
| 1466 | } |
| 1467 | |
| 1468 | void memory_region_add_subregion_overlap(MemoryRegion *mr, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1469 | hwaddr offset, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1470 | MemoryRegion *subregion, |
Marcel Apfelbaum | a1ff8ae | 2013-09-16 11:21:14 +0300 | [diff] [blame] | 1471 | int priority) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1472 | { |
| 1473 | subregion->may_overlap = true; |
| 1474 | subregion->priority = priority; |
| 1475 | memory_region_add_subregion_common(mr, offset, subregion); |
| 1476 | } |
| 1477 | |
| 1478 | void memory_region_del_subregion(MemoryRegion *mr, |
| 1479 | MemoryRegion *subregion) |
| 1480 | { |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1481 | memory_region_transaction_begin(); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1482 | assert(subregion->parent == mr); |
| 1483 | subregion->parent = NULL; |
| 1484 | QTAILQ_REMOVE(&mr->subregions, subregion, subregions_link); |
Paolo Bonzini | dfde4e6 | 2013-05-06 10:46:11 +0200 | [diff] [blame] | 1485 | memory_region_unref(subregion); |
Jan Kiszka | 22bde71 | 2012-11-05 16:45:56 +0100 | [diff] [blame] | 1486 | memory_region_update_pending |= mr->enabled && subregion->enabled; |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1487 | memory_region_transaction_commit(); |
Avi Kivity | 6bba19b | 2011-09-14 11:54:58 +0300 | [diff] [blame] | 1488 | } |
| 1489 | |
| 1490 | void memory_region_set_enabled(MemoryRegion *mr, bool enabled) |
| 1491 | { |
| 1492 | if (enabled == mr->enabled) { |
| 1493 | return; |
| 1494 | } |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1495 | memory_region_transaction_begin(); |
Avi Kivity | 6bba19b | 2011-09-14 11:54:58 +0300 | [diff] [blame] | 1496 | mr->enabled = enabled; |
Jan Kiszka | 22bde71 | 2012-11-05 16:45:56 +0100 | [diff] [blame] | 1497 | memory_region_update_pending = true; |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1498 | memory_region_transaction_commit(); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1499 | } |
Avi Kivity | 1c0ffa5 | 2011-07-26 14:26:04 +0300 | [diff] [blame] | 1500 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1501 | void memory_region_set_address(MemoryRegion *mr, hwaddr addr) |
Avi Kivity | 2282e1a | 2011-09-14 12:10:12 +0300 | [diff] [blame] | 1502 | { |
| 1503 | MemoryRegion *parent = mr->parent; |
Marcel Apfelbaum | a1ff8ae | 2013-09-16 11:21:14 +0300 | [diff] [blame] | 1504 | int priority = mr->priority; |
Avi Kivity | 2282e1a | 2011-09-14 12:10:12 +0300 | [diff] [blame] | 1505 | bool may_overlap = mr->may_overlap; |
| 1506 | |
| 1507 | if (addr == mr->addr || !parent) { |
| 1508 | mr->addr = addr; |
| 1509 | return; |
| 1510 | } |
| 1511 | |
| 1512 | memory_region_transaction_begin(); |
Paolo Bonzini | dfde4e6 | 2013-05-06 10:46:11 +0200 | [diff] [blame] | 1513 | memory_region_ref(mr); |
Avi Kivity | 2282e1a | 2011-09-14 12:10:12 +0300 | [diff] [blame] | 1514 | memory_region_del_subregion(parent, mr); |
| 1515 | if (may_overlap) { |
| 1516 | memory_region_add_subregion_overlap(parent, addr, mr, priority); |
| 1517 | } else { |
| 1518 | memory_region_add_subregion(parent, addr, mr); |
| 1519 | } |
Paolo Bonzini | dfde4e6 | 2013-05-06 10:46:11 +0200 | [diff] [blame] | 1520 | memory_region_unref(mr); |
Avi Kivity | 2282e1a | 2011-09-14 12:10:12 +0300 | [diff] [blame] | 1521 | memory_region_transaction_commit(); |
| 1522 | } |
| 1523 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1524 | void memory_region_set_alias_offset(MemoryRegion *mr, hwaddr offset) |
Avi Kivity | 4703359 | 2011-12-04 19:16:50 +0200 | [diff] [blame] | 1525 | { |
Avi Kivity | 4703359 | 2011-12-04 19:16:50 +0200 | [diff] [blame] | 1526 | assert(mr->alias); |
Avi Kivity | 4703359 | 2011-12-04 19:16:50 +0200 | [diff] [blame] | 1527 | |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1528 | if (offset == mr->alias_offset) { |
Avi Kivity | 4703359 | 2011-12-04 19:16:50 +0200 | [diff] [blame] | 1529 | return; |
| 1530 | } |
| 1531 | |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1532 | memory_region_transaction_begin(); |
| 1533 | mr->alias_offset = offset; |
Jan Kiszka | 22bde71 | 2012-11-05 16:45:56 +0100 | [diff] [blame] | 1534 | memory_region_update_pending |= mr->enabled; |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1535 | memory_region_transaction_commit(); |
Avi Kivity | 4703359 | 2011-12-04 19:16:50 +0200 | [diff] [blame] | 1536 | } |
| 1537 | |
Avi Kivity | e34911c | 2011-12-19 12:06:23 +0200 | [diff] [blame] | 1538 | ram_addr_t memory_region_get_ram_addr(MemoryRegion *mr) |
| 1539 | { |
Avi Kivity | e34911c | 2011-12-19 12:06:23 +0200 | [diff] [blame] | 1540 | return mr->ram_addr; |
| 1541 | } |
| 1542 | |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 1543 | static int cmp_flatrange_addr(const void *addr_, const void *fr_) |
| 1544 | { |
| 1545 | const AddrRange *addr = addr_; |
| 1546 | const FlatRange *fr = fr_; |
| 1547 | |
| 1548 | if (int128_le(addrrange_end(*addr), fr->addr.start)) { |
| 1549 | return -1; |
| 1550 | } else if (int128_ge(addr->start, addrrange_end(fr->addr))) { |
| 1551 | return 1; |
| 1552 | } |
| 1553 | return 0; |
| 1554 | } |
| 1555 | |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 1556 | static FlatRange *flatview_lookup(FlatView *view, AddrRange addr) |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 1557 | { |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 1558 | return bsearch(&addr, view->ranges, view->nr, |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 1559 | sizeof(FlatRange), cmp_flatrange_addr); |
| 1560 | } |
| 1561 | |
Paolo Bonzini | 3ce1090 | 2013-07-02 13:40:48 +0200 | [diff] [blame] | 1562 | bool memory_region_present(MemoryRegion *parent, hwaddr addr) |
| 1563 | { |
| 1564 | MemoryRegion *mr = memory_region_find(parent, addr, 1).mr; |
Igor Mammedov | 8e46bbf | 2014-02-06 11:24:33 +0100 | [diff] [blame] | 1565 | if (!mr || (mr == parent)) { |
Paolo Bonzini | 3ce1090 | 2013-07-02 13:40:48 +0200 | [diff] [blame] | 1566 | return false; |
| 1567 | } |
Paolo Bonzini | dfde4e6 | 2013-05-06 10:46:11 +0200 | [diff] [blame] | 1568 | memory_region_unref(mr); |
Paolo Bonzini | 3ce1090 | 2013-07-02 13:40:48 +0200 | [diff] [blame] | 1569 | return true; |
| 1570 | } |
| 1571 | |
Paolo Bonzini | 73034e9 | 2013-05-07 15:48:28 +0200 | [diff] [blame] | 1572 | MemoryRegionSection memory_region_find(MemoryRegion *mr, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1573 | hwaddr addr, uint64_t size) |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 1574 | { |
Paolo Bonzini | 052e87b | 2013-05-27 10:08:27 +0200 | [diff] [blame] | 1575 | MemoryRegionSection ret = { .mr = NULL }; |
Paolo Bonzini | 73034e9 | 2013-05-07 15:48:28 +0200 | [diff] [blame] | 1576 | MemoryRegion *root; |
| 1577 | AddressSpace *as; |
| 1578 | AddrRange range; |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 1579 | FlatView *view; |
Paolo Bonzini | 73034e9 | 2013-05-07 15:48:28 +0200 | [diff] [blame] | 1580 | FlatRange *fr; |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 1581 | |
Paolo Bonzini | 73034e9 | 2013-05-07 15:48:28 +0200 | [diff] [blame] | 1582 | addr += mr->addr; |
| 1583 | for (root = mr; root->parent; ) { |
| 1584 | root = root->parent; |
| 1585 | addr += root->addr; |
| 1586 | } |
| 1587 | |
| 1588 | as = memory_region_to_address_space(root); |
| 1589 | range = addrrange_make(int128_make64(addr), int128_make64(size)); |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 1590 | |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 1591 | view = address_space_get_flatview(as); |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 1592 | fr = flatview_lookup(view, range); |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 1593 | if (!fr) { |
Marcel Apfelbaum | 6307d97 | 2013-12-02 16:20:59 +0200 | [diff] [blame] | 1594 | flatview_unref(view); |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 1595 | return ret; |
| 1596 | } |
| 1597 | |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 1598 | while (fr > view->ranges && addrrange_intersects(fr[-1].addr, range)) { |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 1599 | --fr; |
| 1600 | } |
| 1601 | |
| 1602 | ret.mr = fr->mr; |
Paolo Bonzini | 73034e9 | 2013-05-07 15:48:28 +0200 | [diff] [blame] | 1603 | ret.address_space = as; |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 1604 | range = addrrange_intersection(range, fr->addr); |
| 1605 | ret.offset_within_region = fr->offset_in_region; |
| 1606 | ret.offset_within_region += int128_get64(int128_sub(range.start, |
| 1607 | fr->addr.start)); |
Paolo Bonzini | 052e87b | 2013-05-27 10:08:27 +0200 | [diff] [blame] | 1608 | ret.size = range.size; |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 1609 | ret.offset_within_address_space = int128_get64(range.start); |
Avi Kivity | 7a8499e | 2012-02-08 17:01:23 +0200 | [diff] [blame] | 1610 | ret.readonly = fr->readonly; |
Paolo Bonzini | dfde4e6 | 2013-05-06 10:46:11 +0200 | [diff] [blame] | 1611 | memory_region_ref(ret.mr); |
| 1612 | |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 1613 | flatview_unref(view); |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 1614 | return ret; |
| 1615 | } |
| 1616 | |
Paolo Bonzini | 1d67136 | 2013-04-24 10:46:55 +0200 | [diff] [blame] | 1617 | void address_space_sync_dirty_bitmap(AddressSpace *as) |
Avi Kivity | 86e775c | 2011-12-15 16:24:49 +0200 | [diff] [blame] | 1618 | { |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 1619 | FlatView *view; |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 1620 | FlatRange *fr; |
| 1621 | |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 1622 | view = address_space_get_flatview(as); |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 1623 | FOR_EACH_FLAT_RANGE(fr, view) { |
Avi Kivity | 72e22d2 | 2012-02-08 15:05:50 +0200 | [diff] [blame] | 1624 | MEMORY_LISTENER_UPDATE_REGION(fr, as, Forward, log_sync); |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 1625 | } |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 1626 | flatview_unref(view); |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 1627 | } |
| 1628 | |
| 1629 | void memory_global_dirty_log_start(void) |
| 1630 | { |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 1631 | global_dirty_log = true; |
Avi Kivity | 7376e58 | 2012-02-08 21:05:17 +0200 | [diff] [blame] | 1632 | MEMORY_LISTENER_CALL_GLOBAL(log_global_start, Forward); |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 1633 | } |
| 1634 | |
| 1635 | void memory_global_dirty_log_stop(void) |
| 1636 | { |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 1637 | global_dirty_log = false; |
Avi Kivity | 7376e58 | 2012-02-08 21:05:17 +0200 | [diff] [blame] | 1638 | MEMORY_LISTENER_CALL_GLOBAL(log_global_stop, Reverse); |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 1639 | } |
| 1640 | |
| 1641 | static void listener_add_address_space(MemoryListener *listener, |
| 1642 | AddressSpace *as) |
| 1643 | { |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 1644 | FlatView *view; |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 1645 | FlatRange *fr; |
| 1646 | |
Julien Grall | 221b3a3 | 2012-04-04 15:15:41 +0100 | [diff] [blame] | 1647 | if (listener->address_space_filter |
Avi Kivity | f6790af | 2012-10-02 20:13:51 +0200 | [diff] [blame] | 1648 | && listener->address_space_filter != as) { |
Julien Grall | 221b3a3 | 2012-04-04 15:15:41 +0100 | [diff] [blame] | 1649 | return; |
| 1650 | } |
| 1651 | |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 1652 | if (global_dirty_log) { |
Avi Kivity | 975aefe | 2012-10-02 16:39:57 +0200 | [diff] [blame] | 1653 | if (listener->log_global_start) { |
| 1654 | listener->log_global_start(listener); |
| 1655 | } |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 1656 | } |
Avi Kivity | 975aefe | 2012-10-02 16:39:57 +0200 | [diff] [blame] | 1657 | |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 1658 | view = address_space_get_flatview(as); |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 1659 | FOR_EACH_FLAT_RANGE(fr, view) { |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 1660 | MemoryRegionSection section = { |
| 1661 | .mr = fr->mr, |
Avi Kivity | f6790af | 2012-10-02 20:13:51 +0200 | [diff] [blame] | 1662 | .address_space = as, |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 1663 | .offset_within_region = fr->offset_in_region, |
Paolo Bonzini | 052e87b | 2013-05-27 10:08:27 +0200 | [diff] [blame] | 1664 | .size = fr->addr.size, |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 1665 | .offset_within_address_space = int128_get64(fr->addr.start), |
Avi Kivity | 7a8499e | 2012-02-08 17:01:23 +0200 | [diff] [blame] | 1666 | .readonly = fr->readonly, |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 1667 | }; |
Avi Kivity | 975aefe | 2012-10-02 16:39:57 +0200 | [diff] [blame] | 1668 | if (listener->region_add) { |
| 1669 | listener->region_add(listener, §ion); |
| 1670 | } |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 1671 | } |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 1672 | flatview_unref(view); |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 1673 | } |
| 1674 | |
Avi Kivity | f6790af | 2012-10-02 20:13:51 +0200 | [diff] [blame] | 1675 | void memory_listener_register(MemoryListener *listener, AddressSpace *filter) |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 1676 | { |
Avi Kivity | 72e22d2 | 2012-02-08 15:05:50 +0200 | [diff] [blame] | 1677 | MemoryListener *other = NULL; |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 1678 | AddressSpace *as; |
Avi Kivity | 72e22d2 | 2012-02-08 15:05:50 +0200 | [diff] [blame] | 1679 | |
Avi Kivity | 7376e58 | 2012-02-08 21:05:17 +0200 | [diff] [blame] | 1680 | listener->address_space_filter = filter; |
Avi Kivity | 72e22d2 | 2012-02-08 15:05:50 +0200 | [diff] [blame] | 1681 | if (QTAILQ_EMPTY(&memory_listeners) |
| 1682 | || listener->priority >= QTAILQ_LAST(&memory_listeners, |
| 1683 | memory_listeners)->priority) { |
| 1684 | QTAILQ_INSERT_TAIL(&memory_listeners, listener, link); |
| 1685 | } else { |
| 1686 | QTAILQ_FOREACH(other, &memory_listeners, link) { |
| 1687 | if (listener->priority < other->priority) { |
| 1688 | break; |
| 1689 | } |
| 1690 | } |
| 1691 | QTAILQ_INSERT_BEFORE(other, listener, link); |
| 1692 | } |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 1693 | |
| 1694 | QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) { |
| 1695 | listener_add_address_space(listener, as); |
| 1696 | } |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 1697 | } |
| 1698 | |
| 1699 | void memory_listener_unregister(MemoryListener *listener) |
| 1700 | { |
Avi Kivity | 72e22d2 | 2012-02-08 15:05:50 +0200 | [diff] [blame] | 1701 | QTAILQ_REMOVE(&memory_listeners, listener, link); |
Avi Kivity | 86e775c | 2011-12-15 16:24:49 +0200 | [diff] [blame] | 1702 | } |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 1703 | |
Alexey Kardashevskiy | 7dca804 | 2013-04-29 16:25:51 +0000 | [diff] [blame] | 1704 | void address_space_init(AddressSpace *as, MemoryRegion *root, const char *name) |
Avi Kivity | 1c0ffa5 | 2011-07-26 14:26:04 +0300 | [diff] [blame] | 1705 | { |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 1706 | if (QTAILQ_EMPTY(&address_spaces)) { |
| 1707 | memory_init(); |
| 1708 | } |
| 1709 | |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1710 | memory_region_transaction_begin(); |
Avi Kivity | 8786db7 | 2012-10-02 13:53:41 +0200 | [diff] [blame] | 1711 | as->root = root; |
| 1712 | as->current_map = g_new(FlatView, 1); |
| 1713 | flatview_init(as->current_map); |
Avi Kivity | 4c19eb7 | 2012-10-30 13:47:44 +0200 | [diff] [blame] | 1714 | as->ioeventfd_nb = 0; |
| 1715 | as->ioeventfds = NULL; |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 1716 | QTAILQ_INSERT_TAIL(&address_spaces, as, address_spaces_link); |
Alexey Kardashevskiy | 7dca804 | 2013-04-29 16:25:51 +0000 | [diff] [blame] | 1717 | as->name = g_strdup(name ? name : "anonymous"); |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 1718 | address_space_init_dispatch(as); |
Paolo Bonzini | f43793c | 2013-04-16 15:39:51 +0200 | [diff] [blame] | 1719 | memory_region_update_pending |= root->enabled; |
| 1720 | memory_region_transaction_commit(); |
Avi Kivity | 1c0ffa5 | 2011-07-26 14:26:04 +0300 | [diff] [blame] | 1721 | } |
Avi Kivity | 658b222 | 2011-07-26 14:26:08 +0300 | [diff] [blame] | 1722 | |
Avi Kivity | 83f3c25 | 2012-10-07 12:59:55 +0200 | [diff] [blame] | 1723 | void address_space_destroy(AddressSpace *as) |
| 1724 | { |
| 1725 | /* Flush out anything from MemoryListeners listening in on this */ |
| 1726 | memory_region_transaction_begin(); |
| 1727 | as->root = NULL; |
| 1728 | memory_region_transaction_commit(); |
| 1729 | QTAILQ_REMOVE(&address_spaces, as, address_spaces_link); |
| 1730 | address_space_destroy_dispatch(as); |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 1731 | flatview_unref(as->current_map); |
Alexey Kardashevskiy | 7dca804 | 2013-04-29 16:25:51 +0000 | [diff] [blame] | 1732 | g_free(as->name); |
Avi Kivity | 4c19eb7 | 2012-10-30 13:47:44 +0200 | [diff] [blame] | 1733 | g_free(as->ioeventfds); |
Avi Kivity | 83f3c25 | 2012-10-07 12:59:55 +0200 | [diff] [blame] | 1734 | } |
| 1735 | |
Paolo Bonzini | 791af8c | 2013-05-24 16:10:39 +0200 | [diff] [blame] | 1736 | bool io_mem_read(MemoryRegion *mr, hwaddr addr, uint64_t *pval, unsigned size) |
Avi Kivity | acbbec5 | 2011-11-21 12:27:03 +0200 | [diff] [blame] | 1737 | { |
Paolo Bonzini | 791af8c | 2013-05-24 16:10:39 +0200 | [diff] [blame] | 1738 | return memory_region_dispatch_read(mr, addr, pval, size); |
Avi Kivity | acbbec5 | 2011-11-21 12:27:03 +0200 | [diff] [blame] | 1739 | } |
| 1740 | |
Paolo Bonzini | 791af8c | 2013-05-24 16:10:39 +0200 | [diff] [blame] | 1741 | bool io_mem_write(MemoryRegion *mr, hwaddr addr, |
Avi Kivity | acbbec5 | 2011-11-21 12:27:03 +0200 | [diff] [blame] | 1742 | uint64_t val, unsigned size) |
| 1743 | { |
Paolo Bonzini | 791af8c | 2013-05-24 16:10:39 +0200 | [diff] [blame] | 1744 | return memory_region_dispatch_write(mr, addr, val, size); |
Avi Kivity | acbbec5 | 2011-11-21 12:27:03 +0200 | [diff] [blame] | 1745 | } |
| 1746 | |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1747 | typedef struct MemoryRegionList MemoryRegionList; |
| 1748 | |
| 1749 | struct MemoryRegionList { |
| 1750 | const MemoryRegion *mr; |
| 1751 | bool printed; |
| 1752 | QTAILQ_ENTRY(MemoryRegionList) queue; |
| 1753 | }; |
| 1754 | |
| 1755 | typedef QTAILQ_HEAD(queue, MemoryRegionList) MemoryRegionListHead; |
| 1756 | |
| 1757 | static void mtree_print_mr(fprintf_function mon_printf, void *f, |
| 1758 | const MemoryRegion *mr, unsigned int level, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1759 | hwaddr base, |
Jan Kiszka | 9479c57 | 2011-09-27 15:00:41 +0200 | [diff] [blame] | 1760 | MemoryRegionListHead *alias_print_queue) |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1761 | { |
Jan Kiszka | 9479c57 | 2011-09-27 15:00:41 +0200 | [diff] [blame] | 1762 | MemoryRegionList *new_ml, *ml, *next_ml; |
| 1763 | MemoryRegionListHead submr_print_queue; |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1764 | const MemoryRegion *submr; |
| 1765 | unsigned int i; |
| 1766 | |
Jan Kiszka | 7ea692b | 2012-10-31 10:49:02 +0100 | [diff] [blame] | 1767 | if (!mr || !mr->enabled) { |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1768 | return; |
| 1769 | } |
| 1770 | |
| 1771 | for (i = 0; i < level; i++) { |
| 1772 | mon_printf(f, " "); |
| 1773 | } |
| 1774 | |
| 1775 | if (mr->alias) { |
| 1776 | MemoryRegionList *ml; |
| 1777 | bool found = false; |
| 1778 | |
| 1779 | /* check if the alias is already in the queue */ |
Jan Kiszka | 9479c57 | 2011-09-27 15:00:41 +0200 | [diff] [blame] | 1780 | QTAILQ_FOREACH(ml, alias_print_queue, queue) { |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1781 | if (ml->mr == mr->alias && !ml->printed) { |
| 1782 | found = true; |
| 1783 | } |
| 1784 | } |
| 1785 | |
| 1786 | if (!found) { |
| 1787 | ml = g_new(MemoryRegionList, 1); |
| 1788 | ml->mr = mr->alias; |
| 1789 | ml->printed = false; |
Jan Kiszka | 9479c57 | 2011-09-27 15:00:41 +0200 | [diff] [blame] | 1790 | QTAILQ_INSERT_TAIL(alias_print_queue, ml, queue); |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1791 | } |
Jan Kiszka | 4896d74 | 2012-02-04 16:25:42 +0100 | [diff] [blame] | 1792 | mon_printf(f, TARGET_FMT_plx "-" TARGET_FMT_plx |
| 1793 | " (prio %d, %c%c): alias %s @%s " TARGET_FMT_plx |
| 1794 | "-" TARGET_FMT_plx "\n", |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1795 | base + mr->addr, |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1796 | base + mr->addr |
Alex Williamson | fd1d992 | 2013-07-19 12:42:12 -0600 | [diff] [blame] | 1797 | + (int128_nz(mr->size) ? |
| 1798 | (hwaddr)int128_get64(int128_sub(mr->size, |
| 1799 | int128_one())) : 0), |
Jan Kiszka | 4b474ba | 2011-09-27 15:00:31 +0200 | [diff] [blame] | 1800 | mr->priority, |
Jan Kiszka | 5f9a5ea | 2013-05-07 19:04:25 +0200 | [diff] [blame] | 1801 | mr->romd_mode ? 'R' : '-', |
| 1802 | !mr->readonly && !(mr->rom_device && mr->romd_mode) ? 'W' |
| 1803 | : '-', |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1804 | mr->name, |
| 1805 | mr->alias->name, |
| 1806 | mr->alias_offset, |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1807 | mr->alias_offset |
Alexey Kardashevskiy | a66670c | 2013-08-30 18:10:38 +1000 | [diff] [blame] | 1808 | + (int128_nz(mr->size) ? |
| 1809 | (hwaddr)int128_get64(int128_sub(mr->size, |
| 1810 | int128_one())) : 0)); |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1811 | } else { |
Jan Kiszka | 4896d74 | 2012-02-04 16:25:42 +0100 | [diff] [blame] | 1812 | mon_printf(f, |
| 1813 | TARGET_FMT_plx "-" TARGET_FMT_plx " (prio %d, %c%c): %s\n", |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1814 | base + mr->addr, |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1815 | base + mr->addr |
Alex Williamson | fd1d992 | 2013-07-19 12:42:12 -0600 | [diff] [blame] | 1816 | + (int128_nz(mr->size) ? |
| 1817 | (hwaddr)int128_get64(int128_sub(mr->size, |
| 1818 | int128_one())) : 0), |
Jan Kiszka | 4b474ba | 2011-09-27 15:00:31 +0200 | [diff] [blame] | 1819 | mr->priority, |
Jan Kiszka | 5f9a5ea | 2013-05-07 19:04:25 +0200 | [diff] [blame] | 1820 | mr->romd_mode ? 'R' : '-', |
| 1821 | !mr->readonly && !(mr->rom_device && mr->romd_mode) ? 'W' |
| 1822 | : '-', |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1823 | mr->name); |
| 1824 | } |
Jan Kiszka | 9479c57 | 2011-09-27 15:00:41 +0200 | [diff] [blame] | 1825 | |
| 1826 | QTAILQ_INIT(&submr_print_queue); |
| 1827 | |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1828 | QTAILQ_FOREACH(submr, &mr->subregions, subregions_link) { |
Jan Kiszka | 9479c57 | 2011-09-27 15:00:41 +0200 | [diff] [blame] | 1829 | new_ml = g_new(MemoryRegionList, 1); |
| 1830 | new_ml->mr = submr; |
| 1831 | QTAILQ_FOREACH(ml, &submr_print_queue, queue) { |
| 1832 | if (new_ml->mr->addr < ml->mr->addr || |
| 1833 | (new_ml->mr->addr == ml->mr->addr && |
| 1834 | new_ml->mr->priority > ml->mr->priority)) { |
| 1835 | QTAILQ_INSERT_BEFORE(ml, new_ml, queue); |
| 1836 | new_ml = NULL; |
| 1837 | break; |
| 1838 | } |
| 1839 | } |
| 1840 | if (new_ml) { |
| 1841 | QTAILQ_INSERT_TAIL(&submr_print_queue, new_ml, queue); |
| 1842 | } |
| 1843 | } |
| 1844 | |
| 1845 | QTAILQ_FOREACH(ml, &submr_print_queue, queue) { |
| 1846 | mtree_print_mr(mon_printf, f, ml->mr, level + 1, base + mr->addr, |
| 1847 | alias_print_queue); |
| 1848 | } |
| 1849 | |
Avi Kivity | 88365e4 | 2011-11-13 12:00:55 +0200 | [diff] [blame] | 1850 | QTAILQ_FOREACH_SAFE(ml, &submr_print_queue, queue, next_ml) { |
Jan Kiszka | 9479c57 | 2011-09-27 15:00:41 +0200 | [diff] [blame] | 1851 | g_free(ml); |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1852 | } |
| 1853 | } |
| 1854 | |
| 1855 | void mtree_info(fprintf_function mon_printf, void *f) |
| 1856 | { |
| 1857 | MemoryRegionListHead ml_head; |
| 1858 | MemoryRegionList *ml, *ml2; |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 1859 | AddressSpace *as; |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1860 | |
| 1861 | QTAILQ_INIT(&ml_head); |
| 1862 | |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 1863 | QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) { |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 1864 | mon_printf(f, "%s\n", as->name); |
| 1865 | mtree_print_mr(mon_printf, f, as->root, 0, 0, &ml_head); |
Blue Swirl | b9f9be8 | 2012-03-10 16:58:35 +0000 | [diff] [blame] | 1866 | } |
| 1867 | |
| 1868 | mon_printf(f, "aliases\n"); |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1869 | /* print aliased regions */ |
| 1870 | QTAILQ_FOREACH(ml, &ml_head, queue) { |
| 1871 | if (!ml->printed) { |
| 1872 | mon_printf(f, "%s\n", ml->mr->name); |
| 1873 | mtree_print_mr(mon_printf, f, ml->mr, 0, 0, &ml_head); |
| 1874 | } |
| 1875 | } |
| 1876 | |
| 1877 | QTAILQ_FOREACH_SAFE(ml, &ml_head, queue, ml2) { |
Avi Kivity | 88365e4 | 2011-11-13 12:00:55 +0200 | [diff] [blame] | 1878 | g_free(ml); |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1879 | } |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1880 | } |