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" |
Peter Crosthwaite | 409ddd0 | 2014-06-05 23:16:27 -0700 | [diff] [blame] | 19 | #include "qapi/visitor.h" |
Paolo Bonzini | 1de7afc | 2012-12-17 18:20:00 +0100 | [diff] [blame] | 20 | #include "qemu/bitops.h" |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 21 | #include "qom/object.h" |
Paolo Bonzini | 55d5d04 | 2013-07-28 14:57:22 +0200 | [diff] [blame] | 22 | #include "trace.h" |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 23 | #include <assert.h> |
| 24 | |
Paolo Bonzini | 022c62c | 2012-12-17 18:19:49 +0100 | [diff] [blame] | 25 | #include "exec/memory-internal.h" |
Juan Quintela | 220c3eb | 2013-10-14 17:13:59 +0200 | [diff] [blame] | 26 | #include "exec/ram_addr.h" |
Paolo Bonzini | e1c57ab | 2014-05-14 17:43:18 +0800 | [diff] [blame] | 27 | #include "sysemu/sysemu.h" |
Avi Kivity | 67d95c1 | 2011-12-15 15:25:22 +0200 | [diff] [blame] | 28 | |
Paolo Bonzini | d197063 | 2013-05-24 13:23:38 +0200 | [diff] [blame] | 29 | //#define DEBUG_UNASSIGNED |
| 30 | |
Paolo Bonzini | ec05ec2 | 2015-03-29 09:31:43 +0200 | [diff] [blame] | 31 | #define RAM_ADDR_INVALID (~(ram_addr_t)0) |
| 32 | |
Jan Kiszka | 22bde71 | 2012-11-05 16:45:56 +0100 | [diff] [blame] | 33 | static unsigned memory_region_transaction_depth; |
| 34 | static bool memory_region_update_pending; |
Gonglei | 4dc5615 | 2014-05-08 11:47:32 +0800 | [diff] [blame] | 35 | static bool ioeventfd_update_pending; |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 36 | static bool global_dirty_log = false; |
| 37 | |
Avi Kivity | 72e22d2 | 2012-02-08 15:05:50 +0200 | [diff] [blame] | 38 | static QTAILQ_HEAD(memory_listeners, MemoryListener) memory_listeners |
| 39 | = QTAILQ_HEAD_INITIALIZER(memory_listeners); |
Avi Kivity | 4ef4db8 | 2011-07-26 14:26:13 +0300 | [diff] [blame] | 40 | |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 41 | static QTAILQ_HEAD(, AddressSpace) address_spaces |
| 42 | = QTAILQ_HEAD_INITIALIZER(address_spaces); |
| 43 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 44 | typedef struct AddrRange AddrRange; |
| 45 | |
Avi Kivity | 8417ceb | 2011-08-03 11:56:14 +0300 | [diff] [blame] | 46 | /* |
Fam Zheng | c9cdaa3 | 2014-08-11 10:18:31 +0800 | [diff] [blame] | 47 | * Note that signed integers are needed for negative offsetting in aliases |
Avi Kivity | 8417ceb | 2011-08-03 11:56:14 +0300 | [diff] [blame] | 48 | * (large MemoryRegion::alias_offset). |
| 49 | */ |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 50 | struct AddrRange { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 51 | Int128 start; |
| 52 | Int128 size; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 53 | }; |
| 54 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 55 | static AddrRange addrrange_make(Int128 start, Int128 size) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 56 | { |
| 57 | return (AddrRange) { start, size }; |
| 58 | } |
| 59 | |
| 60 | static bool addrrange_equal(AddrRange r1, AddrRange r2) |
| 61 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 62 | 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] | 63 | } |
| 64 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 65 | static Int128 addrrange_end(AddrRange r) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 66 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 67 | return int128_add(r.start, r.size); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 68 | } |
| 69 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 70 | static AddrRange addrrange_shift(AddrRange range, Int128 delta) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 71 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 72 | int128_addto(&range.start, delta); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 73 | return range; |
| 74 | } |
| 75 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 76 | static bool addrrange_contains(AddrRange range, Int128 addr) |
| 77 | { |
| 78 | return int128_ge(addr, range.start) |
| 79 | && int128_lt(addr, addrrange_end(range)); |
| 80 | } |
| 81 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 82 | static bool addrrange_intersects(AddrRange r1, AddrRange r2) |
| 83 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 84 | return addrrange_contains(r1, r2.start) |
| 85 | || addrrange_contains(r2, r1.start); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 86 | } |
| 87 | |
| 88 | static AddrRange addrrange_intersection(AddrRange r1, AddrRange r2) |
| 89 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 90 | Int128 start = int128_max(r1.start, r2.start); |
| 91 | Int128 end = int128_min(addrrange_end(r1), addrrange_end(r2)); |
| 92 | return addrrange_make(start, int128_sub(end, start)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 93 | } |
| 94 | |
Avi Kivity | 0e0d36b | 2012-02-08 16:39:45 +0200 | [diff] [blame] | 95 | enum ListenerDirection { Forward, Reverse }; |
| 96 | |
Avi Kivity | 7376e58 | 2012-02-08 21:05:17 +0200 | [diff] [blame] | 97 | static bool memory_listener_match(MemoryListener *listener, |
| 98 | MemoryRegionSection *section) |
| 99 | { |
| 100 | return !listener->address_space_filter |
| 101 | || listener->address_space_filter == section->address_space; |
| 102 | } |
| 103 | |
| 104 | #define MEMORY_LISTENER_CALL_GLOBAL(_callback, _direction, _args...) \ |
Avi Kivity | 0e0d36b | 2012-02-08 16:39:45 +0200 | [diff] [blame] | 105 | do { \ |
| 106 | MemoryListener *_listener; \ |
| 107 | \ |
| 108 | switch (_direction) { \ |
| 109 | case Forward: \ |
| 110 | QTAILQ_FOREACH(_listener, &memory_listeners, link) { \ |
Avi Kivity | 975aefe | 2012-10-02 16:39:57 +0200 | [diff] [blame] | 111 | if (_listener->_callback) { \ |
| 112 | _listener->_callback(_listener, ##_args); \ |
| 113 | } \ |
Avi Kivity | 0e0d36b | 2012-02-08 16:39:45 +0200 | [diff] [blame] | 114 | } \ |
| 115 | break; \ |
| 116 | case Reverse: \ |
| 117 | QTAILQ_FOREACH_REVERSE(_listener, &memory_listeners, \ |
| 118 | memory_listeners, link) { \ |
Avi Kivity | 975aefe | 2012-10-02 16:39:57 +0200 | [diff] [blame] | 119 | if (_listener->_callback) { \ |
| 120 | _listener->_callback(_listener, ##_args); \ |
| 121 | } \ |
Avi Kivity | 0e0d36b | 2012-02-08 16:39:45 +0200 | [diff] [blame] | 122 | } \ |
| 123 | break; \ |
| 124 | default: \ |
| 125 | abort(); \ |
| 126 | } \ |
| 127 | } while (0) |
| 128 | |
Avi Kivity | 7376e58 | 2012-02-08 21:05:17 +0200 | [diff] [blame] | 129 | #define MEMORY_LISTENER_CALL(_callback, _direction, _section, _args...) \ |
| 130 | do { \ |
| 131 | MemoryListener *_listener; \ |
| 132 | \ |
| 133 | switch (_direction) { \ |
| 134 | case Forward: \ |
| 135 | QTAILQ_FOREACH(_listener, &memory_listeners, link) { \ |
Avi Kivity | 975aefe | 2012-10-02 16:39:57 +0200 | [diff] [blame] | 136 | if (_listener->_callback \ |
| 137 | && memory_listener_match(_listener, _section)) { \ |
Avi Kivity | 7376e58 | 2012-02-08 21:05:17 +0200 | [diff] [blame] | 138 | _listener->_callback(_listener, _section, ##_args); \ |
| 139 | } \ |
| 140 | } \ |
| 141 | break; \ |
| 142 | case Reverse: \ |
| 143 | QTAILQ_FOREACH_REVERSE(_listener, &memory_listeners, \ |
| 144 | memory_listeners, link) { \ |
Avi Kivity | 975aefe | 2012-10-02 16:39:57 +0200 | [diff] [blame] | 145 | if (_listener->_callback \ |
| 146 | && memory_listener_match(_listener, _section)) { \ |
Avi Kivity | 7376e58 | 2012-02-08 21:05:17 +0200 | [diff] [blame] | 147 | _listener->_callback(_listener, _section, ##_args); \ |
| 148 | } \ |
| 149 | } \ |
| 150 | break; \ |
| 151 | default: \ |
| 152 | abort(); \ |
| 153 | } \ |
| 154 | } while (0) |
| 155 | |
Paolo Bonzini | dfde4e6 | 2013-05-06 10:46:11 +0200 | [diff] [blame] | 156 | /* No need to ref/unref .mr, the FlatRange keeps it alive. */ |
Paolo Bonzini | b2dfd71 | 2015-04-25 14:38:30 +0200 | [diff] [blame] | 157 | #define MEMORY_LISTENER_UPDATE_REGION(fr, as, dir, callback, _args...) \ |
Avi Kivity | 7376e58 | 2012-02-08 21:05:17 +0200 | [diff] [blame] | 158 | MEMORY_LISTENER_CALL(callback, dir, (&(MemoryRegionSection) { \ |
Avi Kivity | 0e0d36b | 2012-02-08 16:39:45 +0200 | [diff] [blame] | 159 | .mr = (fr)->mr, \ |
Avi Kivity | f6790af | 2012-10-02 20:13:51 +0200 | [diff] [blame] | 160 | .address_space = (as), \ |
Avi Kivity | 0e0d36b | 2012-02-08 16:39:45 +0200 | [diff] [blame] | 161 | .offset_within_region = (fr)->offset_in_region, \ |
Paolo Bonzini | 052e87b | 2013-05-27 10:08:27 +0200 | [diff] [blame] | 162 | .size = (fr)->addr.size, \ |
Avi Kivity | 0e0d36b | 2012-02-08 16:39:45 +0200 | [diff] [blame] | 163 | .offset_within_address_space = int128_get64((fr)->addr.start), \ |
Avi Kivity | 7a8499e | 2012-02-08 17:01:23 +0200 | [diff] [blame] | 164 | .readonly = (fr)->readonly, \ |
Paolo Bonzini | b2dfd71 | 2015-04-25 14:38:30 +0200 | [diff] [blame] | 165 | }), ##_args) |
Avi Kivity | 0e0d36b | 2012-02-08 16:39:45 +0200 | [diff] [blame] | 166 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 167 | struct CoalescedMemoryRange { |
| 168 | AddrRange addr; |
| 169 | QTAILQ_ENTRY(CoalescedMemoryRange) link; |
| 170 | }; |
| 171 | |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 172 | struct MemoryRegionIoeventfd { |
| 173 | AddrRange addr; |
| 174 | bool match_data; |
| 175 | uint64_t data; |
Paolo Bonzini | 753d5e1 | 2012-07-05 17:16:27 +0200 | [diff] [blame] | 176 | EventNotifier *e; |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 177 | }; |
| 178 | |
| 179 | static bool memory_region_ioeventfd_before(MemoryRegionIoeventfd a, |
| 180 | MemoryRegionIoeventfd b) |
| 181 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 182 | if (int128_lt(a.addr.start, b.addr.start)) { |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 183 | return true; |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 184 | } else if (int128_gt(a.addr.start, b.addr.start)) { |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 185 | return false; |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 186 | } else if (int128_lt(a.addr.size, b.addr.size)) { |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 187 | return true; |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 188 | } else if (int128_gt(a.addr.size, b.addr.size)) { |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 189 | return false; |
| 190 | } else if (a.match_data < b.match_data) { |
| 191 | return true; |
| 192 | } else if (a.match_data > b.match_data) { |
| 193 | return false; |
| 194 | } else if (a.match_data) { |
| 195 | if (a.data < b.data) { |
| 196 | return true; |
| 197 | } else if (a.data > b.data) { |
| 198 | return false; |
| 199 | } |
| 200 | } |
Paolo Bonzini | 753d5e1 | 2012-07-05 17:16:27 +0200 | [diff] [blame] | 201 | if (a.e < b.e) { |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 202 | return true; |
Paolo Bonzini | 753d5e1 | 2012-07-05 17:16:27 +0200 | [diff] [blame] | 203 | } else if (a.e > b.e) { |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 204 | return false; |
| 205 | } |
| 206 | return false; |
| 207 | } |
| 208 | |
| 209 | static bool memory_region_ioeventfd_equal(MemoryRegionIoeventfd a, |
| 210 | MemoryRegionIoeventfd b) |
| 211 | { |
| 212 | return !memory_region_ioeventfd_before(a, b) |
| 213 | && !memory_region_ioeventfd_before(b, a); |
| 214 | } |
| 215 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 216 | typedef struct FlatRange FlatRange; |
| 217 | typedef struct FlatView FlatView; |
| 218 | |
| 219 | /* Range of memory in the global map. Addresses are absolute. */ |
| 220 | struct FlatRange { |
| 221 | MemoryRegion *mr; |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 222 | hwaddr offset_in_region; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 223 | AddrRange addr; |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 224 | uint8_t dirty_log_mask; |
Jan Kiszka | 5f9a5ea | 2013-05-07 19:04:25 +0200 | [diff] [blame] | 225 | bool romd_mode; |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 226 | bool readonly; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 227 | }; |
| 228 | |
| 229 | /* Flattened global view of current active memory hierarchy. Kept in sorted |
| 230 | * order. |
| 231 | */ |
| 232 | struct FlatView { |
Paolo Bonzini | 374f298 | 2013-05-17 12:37:03 +0200 | [diff] [blame] | 233 | struct rcu_head rcu; |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 234 | unsigned ref; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 235 | FlatRange *ranges; |
| 236 | unsigned nr; |
| 237 | unsigned nr_allocated; |
| 238 | }; |
| 239 | |
Avi Kivity | cc31e6e | 2011-07-26 14:26:05 +0300 | [diff] [blame] | 240 | typedef struct AddressSpaceOps AddressSpaceOps; |
| 241 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 242 | #define FOR_EACH_FLAT_RANGE(var, view) \ |
| 243 | for (var = (view)->ranges; var < (view)->ranges + (view)->nr; ++var) |
| 244 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 245 | static bool flatrange_equal(FlatRange *a, FlatRange *b) |
| 246 | { |
| 247 | return a->mr == b->mr |
| 248 | && addrrange_equal(a->addr, b->addr) |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 249 | && a->offset_in_region == b->offset_in_region |
Jan Kiszka | 5f9a5ea | 2013-05-07 19:04:25 +0200 | [diff] [blame] | 250 | && a->romd_mode == b->romd_mode |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 251 | && a->readonly == b->readonly; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 252 | } |
| 253 | |
| 254 | static void flatview_init(FlatView *view) |
| 255 | { |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 256 | view->ref = 1; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 257 | view->ranges = NULL; |
| 258 | view->nr = 0; |
| 259 | view->nr_allocated = 0; |
| 260 | } |
| 261 | |
| 262 | /* Insert a range into a given position. Caller is responsible for maintaining |
| 263 | * sorting order. |
| 264 | */ |
| 265 | static void flatview_insert(FlatView *view, unsigned pos, FlatRange *range) |
| 266 | { |
| 267 | if (view->nr == view->nr_allocated) { |
| 268 | view->nr_allocated = MAX(2 * view->nr, 10); |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 269 | view->ranges = g_realloc(view->ranges, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 270 | view->nr_allocated * sizeof(*view->ranges)); |
| 271 | } |
| 272 | memmove(view->ranges + pos + 1, view->ranges + pos, |
| 273 | (view->nr - pos) * sizeof(FlatRange)); |
| 274 | view->ranges[pos] = *range; |
Paolo Bonzini | dfde4e6 | 2013-05-06 10:46:11 +0200 | [diff] [blame] | 275 | memory_region_ref(range->mr); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 276 | ++view->nr; |
| 277 | } |
| 278 | |
| 279 | static void flatview_destroy(FlatView *view) |
| 280 | { |
Paolo Bonzini | dfde4e6 | 2013-05-06 10:46:11 +0200 | [diff] [blame] | 281 | int i; |
| 282 | |
| 283 | for (i = 0; i < view->nr; i++) { |
| 284 | memory_region_unref(view->ranges[i].mr); |
| 285 | } |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 286 | g_free(view->ranges); |
Paolo Bonzini | a9a0c06 | 2013-05-06 10:29:07 +0200 | [diff] [blame] | 287 | g_free(view); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 288 | } |
| 289 | |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 290 | static void flatview_ref(FlatView *view) |
| 291 | { |
| 292 | atomic_inc(&view->ref); |
| 293 | } |
| 294 | |
| 295 | static void flatview_unref(FlatView *view) |
| 296 | { |
| 297 | if (atomic_fetch_dec(&view->ref) == 1) { |
| 298 | flatview_destroy(view); |
| 299 | } |
| 300 | } |
| 301 | |
Avi Kivity | 3d8e6bf | 2011-07-26 14:26:03 +0300 | [diff] [blame] | 302 | static bool can_merge(FlatRange *r1, FlatRange *r2) |
| 303 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 304 | return int128_eq(addrrange_end(r1->addr), r2->addr.start) |
Avi Kivity | 3d8e6bf | 2011-07-26 14:26:03 +0300 | [diff] [blame] | 305 | && r1->mr == r2->mr |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 306 | && int128_eq(int128_add(int128_make64(r1->offset_in_region), |
| 307 | r1->addr.size), |
| 308 | int128_make64(r2->offset_in_region)) |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 309 | && r1->dirty_log_mask == r2->dirty_log_mask |
Jan Kiszka | 5f9a5ea | 2013-05-07 19:04:25 +0200 | [diff] [blame] | 310 | && r1->romd_mode == r2->romd_mode |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 311 | && r1->readonly == r2->readonly; |
Avi Kivity | 3d8e6bf | 2011-07-26 14:26:03 +0300 | [diff] [blame] | 312 | } |
| 313 | |
Peter Crosthwaite | 8508e02 | 2013-06-03 15:31:56 +1000 | [diff] [blame] | 314 | /* Attempt to simplify a view by merging adjacent ranges */ |
Avi Kivity | 3d8e6bf | 2011-07-26 14:26:03 +0300 | [diff] [blame] | 315 | static void flatview_simplify(FlatView *view) |
| 316 | { |
| 317 | unsigned i, j; |
| 318 | |
| 319 | i = 0; |
| 320 | while (i < view->nr) { |
| 321 | j = i + 1; |
| 322 | while (j < view->nr |
| 323 | && can_merge(&view->ranges[j-1], &view->ranges[j])) { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 324 | int128_addto(&view->ranges[i].addr.size, view->ranges[j].addr.size); |
Avi Kivity | 3d8e6bf | 2011-07-26 14:26:03 +0300 | [diff] [blame] | 325 | ++j; |
| 326 | } |
| 327 | ++i; |
| 328 | memmove(&view->ranges[i], &view->ranges[j], |
| 329 | (view->nr - j) * sizeof(view->ranges[j])); |
| 330 | view->nr -= j - i; |
| 331 | } |
| 332 | } |
| 333 | |
Paolo Bonzini | e7342aa | 2013-07-22 15:54:37 +0200 | [diff] [blame] | 334 | static bool memory_region_big_endian(MemoryRegion *mr) |
| 335 | { |
| 336 | #ifdef TARGET_WORDS_BIGENDIAN |
| 337 | return mr->ops->endianness != DEVICE_LITTLE_ENDIAN; |
| 338 | #else |
| 339 | return mr->ops->endianness == DEVICE_BIG_ENDIAN; |
| 340 | #endif |
| 341 | } |
| 342 | |
Paolo Bonzini | e11ef3d | 2013-07-22 15:54:35 +0200 | [diff] [blame] | 343 | static bool memory_region_wrong_endianness(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 | |
| 352 | static void adjust_endianness(MemoryRegion *mr, uint64_t *data, unsigned size) |
| 353 | { |
| 354 | if (memory_region_wrong_endianness(mr)) { |
| 355 | switch (size) { |
| 356 | case 1: |
| 357 | break; |
| 358 | case 2: |
| 359 | *data = bswap16(*data); |
| 360 | break; |
| 361 | case 4: |
| 362 | *data = bswap32(*data); |
| 363 | break; |
| 364 | case 8: |
| 365 | *data = bswap64(*data); |
| 366 | break; |
| 367 | default: |
| 368 | abort(); |
| 369 | } |
| 370 | } |
| 371 | } |
| 372 | |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 373 | static MemTxResult memory_region_oldmmio_read_accessor(MemoryRegion *mr, |
| 374 | hwaddr addr, |
| 375 | uint64_t *value, |
| 376 | unsigned size, |
| 377 | unsigned shift, |
| 378 | uint64_t mask, |
| 379 | MemTxAttrs attrs) |
Paolo Bonzini | ce5d2f3 | 2013-05-24 17:45:48 +0200 | [diff] [blame] | 380 | { |
Paolo Bonzini | ce5d2f3 | 2013-05-24 17:45:48 +0200 | [diff] [blame] | 381 | uint64_t tmp; |
| 382 | |
| 383 | tmp = mr->ops->old_mmio.read[ctz32(size)](mr->opaque, addr); |
Paolo Bonzini | 55d5d04 | 2013-07-28 14:57:22 +0200 | [diff] [blame] | 384 | trace_memory_region_ops_read(mr, addr, tmp, size); |
Paolo Bonzini | ce5d2f3 | 2013-05-24 17:45:48 +0200 | [diff] [blame] | 385 | *value |= (tmp & mask) << shift; |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 386 | return MEMTX_OK; |
Paolo Bonzini | ce5d2f3 | 2013-05-24 17:45:48 +0200 | [diff] [blame] | 387 | } |
| 388 | |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 389 | static MemTxResult memory_region_read_accessor(MemoryRegion *mr, |
| 390 | hwaddr addr, |
| 391 | uint64_t *value, |
| 392 | unsigned size, |
| 393 | unsigned shift, |
| 394 | uint64_t mask, |
| 395 | MemTxAttrs attrs) |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 396 | { |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 397 | uint64_t tmp; |
| 398 | |
Jan Kiszka | d410515 | 2012-08-23 13:02:29 +0200 | [diff] [blame] | 399 | if (mr->flush_coalesced_mmio) { |
| 400 | qemu_flush_coalesced_mmio_buffer(); |
| 401 | } |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 402 | tmp = mr->ops->read(mr->opaque, addr, size); |
Paolo Bonzini | 55d5d04 | 2013-07-28 14:57:22 +0200 | [diff] [blame] | 403 | trace_memory_region_ops_read(mr, addr, tmp, size); |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 404 | *value |= (tmp & mask) << shift; |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 405 | return MEMTX_OK; |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 406 | } |
| 407 | |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 408 | static MemTxResult memory_region_read_with_attrs_accessor(MemoryRegion *mr, |
| 409 | hwaddr addr, |
| 410 | uint64_t *value, |
| 411 | unsigned size, |
| 412 | unsigned shift, |
| 413 | uint64_t mask, |
| 414 | MemTxAttrs attrs) |
| 415 | { |
| 416 | uint64_t tmp = 0; |
| 417 | MemTxResult r; |
| 418 | |
| 419 | if (mr->flush_coalesced_mmio) { |
| 420 | qemu_flush_coalesced_mmio_buffer(); |
| 421 | } |
| 422 | r = mr->ops->read_with_attrs(mr->opaque, addr, &tmp, size, attrs); |
| 423 | trace_memory_region_ops_read(mr, addr, tmp, size); |
| 424 | *value |= (tmp & mask) << shift; |
| 425 | return r; |
| 426 | } |
| 427 | |
| 428 | static MemTxResult memory_region_oldmmio_write_accessor(MemoryRegion *mr, |
| 429 | hwaddr addr, |
| 430 | uint64_t *value, |
| 431 | unsigned size, |
| 432 | unsigned shift, |
| 433 | uint64_t mask, |
| 434 | MemTxAttrs attrs) |
Paolo Bonzini | ce5d2f3 | 2013-05-24 17:45:48 +0200 | [diff] [blame] | 435 | { |
Paolo Bonzini | ce5d2f3 | 2013-05-24 17:45:48 +0200 | [diff] [blame] | 436 | uint64_t tmp; |
| 437 | |
| 438 | tmp = (*value >> shift) & mask; |
Paolo Bonzini | 55d5d04 | 2013-07-28 14:57:22 +0200 | [diff] [blame] | 439 | trace_memory_region_ops_write(mr, addr, tmp, size); |
Paolo Bonzini | ce5d2f3 | 2013-05-24 17:45:48 +0200 | [diff] [blame] | 440 | mr->ops->old_mmio.write[ctz32(size)](mr->opaque, addr, tmp); |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 441 | return MEMTX_OK; |
Paolo Bonzini | ce5d2f3 | 2013-05-24 17:45:48 +0200 | [diff] [blame] | 442 | } |
| 443 | |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 444 | static MemTxResult memory_region_write_accessor(MemoryRegion *mr, |
| 445 | hwaddr addr, |
| 446 | uint64_t *value, |
| 447 | unsigned size, |
| 448 | unsigned shift, |
| 449 | uint64_t mask, |
| 450 | MemTxAttrs attrs) |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 451 | { |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 452 | uint64_t tmp; |
| 453 | |
Jan Kiszka | d410515 | 2012-08-23 13:02:29 +0200 | [diff] [blame] | 454 | if (mr->flush_coalesced_mmio) { |
| 455 | qemu_flush_coalesced_mmio_buffer(); |
| 456 | } |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 457 | tmp = (*value >> shift) & mask; |
Paolo Bonzini | 55d5d04 | 2013-07-28 14:57:22 +0200 | [diff] [blame] | 458 | trace_memory_region_ops_write(mr, addr, tmp, size); |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 459 | mr->ops->write(mr->opaque, addr, tmp, size); |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 460 | return MEMTX_OK; |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 461 | } |
| 462 | |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 463 | static MemTxResult memory_region_write_with_attrs_accessor(MemoryRegion *mr, |
| 464 | hwaddr addr, |
| 465 | uint64_t *value, |
| 466 | unsigned size, |
| 467 | unsigned shift, |
| 468 | uint64_t mask, |
| 469 | MemTxAttrs attrs) |
| 470 | { |
| 471 | uint64_t tmp; |
| 472 | |
| 473 | if (mr->flush_coalesced_mmio) { |
| 474 | qemu_flush_coalesced_mmio_buffer(); |
| 475 | } |
| 476 | tmp = (*value >> shift) & mask; |
| 477 | trace_memory_region_ops_write(mr, addr, tmp, size); |
| 478 | return mr->ops->write_with_attrs(mr->opaque, addr, tmp, size, attrs); |
| 479 | } |
| 480 | |
| 481 | static MemTxResult access_with_adjusted_size(hwaddr addr, |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 482 | uint64_t *value, |
| 483 | unsigned size, |
| 484 | unsigned access_size_min, |
| 485 | unsigned access_size_max, |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 486 | MemTxResult (*access)(MemoryRegion *mr, |
| 487 | hwaddr addr, |
| 488 | uint64_t *value, |
| 489 | unsigned size, |
| 490 | unsigned shift, |
| 491 | uint64_t mask, |
| 492 | MemTxAttrs attrs), |
| 493 | MemoryRegion *mr, |
| 494 | MemTxAttrs attrs) |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 495 | { |
| 496 | uint64_t access_mask; |
| 497 | unsigned access_size; |
| 498 | unsigned i; |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 499 | MemTxResult r = MEMTX_OK; |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 500 | |
| 501 | if (!access_size_min) { |
| 502 | access_size_min = 1; |
| 503 | } |
| 504 | if (!access_size_max) { |
| 505 | access_size_max = 4; |
| 506 | } |
Paolo Bonzini | ce5d2f3 | 2013-05-24 17:45:48 +0200 | [diff] [blame] | 507 | |
| 508 | /* FIXME: support unaligned access? */ |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 509 | access_size = MAX(MIN(size, access_size_max), access_size_min); |
| 510 | access_mask = -1ULL >> (64 - access_size * 8); |
Paolo Bonzini | e7342aa | 2013-07-22 15:54:37 +0200 | [diff] [blame] | 511 | if (memory_region_big_endian(mr)) { |
| 512 | for (i = 0; i < size; i += access_size) { |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 513 | r |= access(mr, addr + i, value, access_size, |
| 514 | (size - access_size - i) * 8, access_mask, attrs); |
Paolo Bonzini | e7342aa | 2013-07-22 15:54:37 +0200 | [diff] [blame] | 515 | } |
| 516 | } else { |
| 517 | for (i = 0; i < size; i += access_size) { |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 518 | r |= access(mr, addr + i, value, access_size, i * 8, |
| 519 | access_mask, attrs); |
Paolo Bonzini | e7342aa | 2013-07-22 15:54:37 +0200 | [diff] [blame] | 520 | } |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 521 | } |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 522 | return r; |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 523 | } |
| 524 | |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 525 | static AddressSpace *memory_region_to_address_space(MemoryRegion *mr) |
| 526 | { |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 527 | AddressSpace *as; |
| 528 | |
Paolo Bonzini | feca4ac | 2014-06-11 11:18:09 +0200 | [diff] [blame] | 529 | while (mr->container) { |
| 530 | mr = mr->container; |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 531 | } |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 532 | QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) { |
| 533 | if (mr == as->root) { |
| 534 | return as; |
| 535 | } |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 536 | } |
Igor Mammedov | eed2bac | 2014-06-02 15:25:06 +0200 | [diff] [blame] | 537 | return NULL; |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 538 | } |
| 539 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 540 | /* Render a memory region into the global view. Ranges in @view obscure |
| 541 | * ranges in @mr. |
| 542 | */ |
| 543 | static void render_memory_region(FlatView *view, |
| 544 | MemoryRegion *mr, |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 545 | Int128 base, |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 546 | AddrRange clip, |
| 547 | bool readonly) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 548 | { |
| 549 | MemoryRegion *subregion; |
| 550 | unsigned i; |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 551 | hwaddr offset_in_region; |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 552 | Int128 remain; |
| 553 | Int128 now; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 554 | FlatRange fr; |
| 555 | AddrRange tmp; |
| 556 | |
Avi Kivity | 6bba19b | 2011-09-14 11:54:58 +0300 | [diff] [blame] | 557 | if (!mr->enabled) { |
| 558 | return; |
| 559 | } |
| 560 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 561 | int128_addto(&base, int128_make64(mr->addr)); |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 562 | readonly |= mr->readonly; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 563 | |
| 564 | tmp = addrrange_make(base, mr->size); |
| 565 | |
| 566 | if (!addrrange_intersects(tmp, clip)) { |
| 567 | return; |
| 568 | } |
| 569 | |
| 570 | clip = addrrange_intersection(tmp, clip); |
| 571 | |
| 572 | if (mr->alias) { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 573 | int128_subfrom(&base, int128_make64(mr->alias->addr)); |
| 574 | int128_subfrom(&base, int128_make64(mr->alias_offset)); |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 575 | render_memory_region(view, mr->alias, base, clip, readonly); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 576 | return; |
| 577 | } |
| 578 | |
| 579 | /* Render subregions in priority order. */ |
| 580 | QTAILQ_FOREACH(subregion, &mr->subregions, subregions_link) { |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 581 | render_memory_region(view, subregion, base, clip, readonly); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 582 | } |
| 583 | |
Avi Kivity | 14a3c10 | 2011-07-26 14:26:06 +0300 | [diff] [blame] | 584 | if (!mr->terminates) { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 585 | return; |
| 586 | } |
| 587 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 588 | offset_in_region = int128_get64(int128_sub(clip.start, base)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 589 | base = clip.start; |
| 590 | remain = clip.size; |
| 591 | |
Peter Crosthwaite | 2eb74e1 | 2013-06-03 15:33:29 +1000 | [diff] [blame] | 592 | fr.mr = mr; |
Paolo Bonzini | 6f6a5ef | 2015-03-23 10:57:21 +0100 | [diff] [blame] | 593 | fr.dirty_log_mask = memory_region_get_dirty_log_mask(mr); |
Peter Crosthwaite | 2eb74e1 | 2013-06-03 15:33:29 +1000 | [diff] [blame] | 594 | fr.romd_mode = mr->romd_mode; |
| 595 | fr.readonly = readonly; |
| 596 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 597 | /* Render the region itself into any gaps left by the current view. */ |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 598 | for (i = 0; i < view->nr && int128_nz(remain); ++i) { |
| 599 | if (int128_ge(base, addrrange_end(view->ranges[i].addr))) { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 600 | continue; |
| 601 | } |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 602 | if (int128_lt(base, view->ranges[i].addr.start)) { |
| 603 | now = int128_min(remain, |
| 604 | int128_sub(view->ranges[i].addr.start, base)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 605 | fr.offset_in_region = offset_in_region; |
| 606 | fr.addr = addrrange_make(base, now); |
| 607 | flatview_insert(view, i, &fr); |
| 608 | ++i; |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 609 | int128_addto(&base, now); |
| 610 | offset_in_region += int128_get64(now); |
| 611 | int128_subfrom(&remain, now); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 612 | } |
Avi Kivity | d26a8ca | 2012-10-29 18:22:36 +0200 | [diff] [blame] | 613 | now = int128_sub(int128_min(int128_add(base, remain), |
| 614 | addrrange_end(view->ranges[i].addr)), |
| 615 | base); |
| 616 | int128_addto(&base, now); |
| 617 | offset_in_region += int128_get64(now); |
| 618 | int128_subfrom(&remain, now); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 619 | } |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 620 | if (int128_nz(remain)) { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 621 | fr.offset_in_region = offset_in_region; |
| 622 | fr.addr = addrrange_make(base, remain); |
| 623 | flatview_insert(view, i, &fr); |
| 624 | } |
| 625 | } |
| 626 | |
| 627 | /* Render a memory topology into a list of disjoint absolute ranges. */ |
Paolo Bonzini | a9a0c06 | 2013-05-06 10:29:07 +0200 | [diff] [blame] | 628 | static FlatView *generate_memory_topology(MemoryRegion *mr) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 629 | { |
Paolo Bonzini | a9a0c06 | 2013-05-06 10:29:07 +0200 | [diff] [blame] | 630 | FlatView *view; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 631 | |
Paolo Bonzini | a9a0c06 | 2013-05-06 10:29:07 +0200 | [diff] [blame] | 632 | view = g_new(FlatView, 1); |
| 633 | flatview_init(view); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 634 | |
Avi Kivity | 83f3c25 | 2012-10-07 12:59:55 +0200 | [diff] [blame] | 635 | if (mr) { |
Paolo Bonzini | a9a0c06 | 2013-05-06 10:29:07 +0200 | [diff] [blame] | 636 | render_memory_region(view, mr, int128_zero(), |
Avi Kivity | 83f3c25 | 2012-10-07 12:59:55 +0200 | [diff] [blame] | 637 | addrrange_make(int128_zero(), int128_2_64()), false); |
| 638 | } |
Paolo Bonzini | a9a0c06 | 2013-05-06 10:29:07 +0200 | [diff] [blame] | 639 | flatview_simplify(view); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 640 | |
| 641 | return view; |
| 642 | } |
| 643 | |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 644 | static void address_space_add_del_ioeventfds(AddressSpace *as, |
| 645 | MemoryRegionIoeventfd *fds_new, |
| 646 | unsigned fds_new_nb, |
| 647 | MemoryRegionIoeventfd *fds_old, |
| 648 | unsigned fds_old_nb) |
| 649 | { |
| 650 | unsigned iold, inew; |
Avi Kivity | 80a1ea3 | 2012-02-08 16:39:06 +0200 | [diff] [blame] | 651 | MemoryRegionIoeventfd *fd; |
| 652 | MemoryRegionSection section; |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 653 | |
| 654 | /* Generate a symmetric difference of the old and new fd sets, adding |
| 655 | * and deleting as necessary. |
| 656 | */ |
| 657 | |
| 658 | iold = inew = 0; |
| 659 | while (iold < fds_old_nb || inew < fds_new_nb) { |
| 660 | if (iold < fds_old_nb |
| 661 | && (inew == fds_new_nb |
| 662 | || memory_region_ioeventfd_before(fds_old[iold], |
| 663 | fds_new[inew]))) { |
Avi Kivity | 80a1ea3 | 2012-02-08 16:39:06 +0200 | [diff] [blame] | 664 | fd = &fds_old[iold]; |
| 665 | section = (MemoryRegionSection) { |
Avi Kivity | f6790af | 2012-10-02 20:13:51 +0200 | [diff] [blame] | 666 | .address_space = as, |
Avi Kivity | 80a1ea3 | 2012-02-08 16:39:06 +0200 | [diff] [blame] | 667 | .offset_within_address_space = int128_get64(fd->addr.start), |
Paolo Bonzini | 052e87b | 2013-05-27 10:08:27 +0200 | [diff] [blame] | 668 | .size = fd->addr.size, |
Avi Kivity | 80a1ea3 | 2012-02-08 16:39:06 +0200 | [diff] [blame] | 669 | }; |
| 670 | MEMORY_LISTENER_CALL(eventfd_del, Forward, §ion, |
Paolo Bonzini | 753d5e1 | 2012-07-05 17:16:27 +0200 | [diff] [blame] | 671 | fd->match_data, fd->data, fd->e); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 672 | ++iold; |
| 673 | } else if (inew < fds_new_nb |
| 674 | && (iold == fds_old_nb |
| 675 | || memory_region_ioeventfd_before(fds_new[inew], |
| 676 | fds_old[iold]))) { |
Avi Kivity | 80a1ea3 | 2012-02-08 16:39:06 +0200 | [diff] [blame] | 677 | fd = &fds_new[inew]; |
| 678 | section = (MemoryRegionSection) { |
Avi Kivity | f6790af | 2012-10-02 20:13:51 +0200 | [diff] [blame] | 679 | .address_space = as, |
Avi Kivity | 80a1ea3 | 2012-02-08 16:39:06 +0200 | [diff] [blame] | 680 | .offset_within_address_space = int128_get64(fd->addr.start), |
Paolo Bonzini | 052e87b | 2013-05-27 10:08:27 +0200 | [diff] [blame] | 681 | .size = fd->addr.size, |
Avi Kivity | 80a1ea3 | 2012-02-08 16:39:06 +0200 | [diff] [blame] | 682 | }; |
| 683 | MEMORY_LISTENER_CALL(eventfd_add, Reverse, §ion, |
Paolo Bonzini | 753d5e1 | 2012-07-05 17:16:27 +0200 | [diff] [blame] | 684 | fd->match_data, fd->data, fd->e); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 685 | ++inew; |
| 686 | } else { |
| 687 | ++iold; |
| 688 | ++inew; |
| 689 | } |
| 690 | } |
| 691 | } |
| 692 | |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 693 | static FlatView *address_space_get_flatview(AddressSpace *as) |
| 694 | { |
| 695 | FlatView *view; |
| 696 | |
Paolo Bonzini | 374f298 | 2013-05-17 12:37:03 +0200 | [diff] [blame] | 697 | rcu_read_lock(); |
| 698 | view = atomic_rcu_read(&as->current_map); |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 699 | flatview_ref(view); |
Paolo Bonzini | 374f298 | 2013-05-17 12:37:03 +0200 | [diff] [blame] | 700 | rcu_read_unlock(); |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 701 | return view; |
| 702 | } |
| 703 | |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 704 | static void address_space_update_ioeventfds(AddressSpace *as) |
| 705 | { |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 706 | FlatView *view; |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 707 | FlatRange *fr; |
| 708 | unsigned ioeventfd_nb = 0; |
| 709 | MemoryRegionIoeventfd *ioeventfds = NULL; |
| 710 | AddrRange tmp; |
| 711 | unsigned i; |
| 712 | |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 713 | view = address_space_get_flatview(as); |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 714 | FOR_EACH_FLAT_RANGE(fr, view) { |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 715 | for (i = 0; i < fr->mr->ioeventfd_nb; ++i) { |
| 716 | tmp = addrrange_shift(fr->mr->ioeventfds[i].addr, |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 717 | int128_sub(fr->addr.start, |
| 718 | int128_make64(fr->offset_in_region))); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 719 | if (addrrange_intersects(fr->addr, tmp)) { |
| 720 | ++ioeventfd_nb; |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 721 | ioeventfds = g_realloc(ioeventfds, |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 722 | ioeventfd_nb * sizeof(*ioeventfds)); |
| 723 | ioeventfds[ioeventfd_nb-1] = fr->mr->ioeventfds[i]; |
| 724 | ioeventfds[ioeventfd_nb-1].addr = tmp; |
| 725 | } |
| 726 | } |
| 727 | } |
| 728 | |
| 729 | address_space_add_del_ioeventfds(as, ioeventfds, ioeventfd_nb, |
| 730 | as->ioeventfds, as->ioeventfd_nb); |
| 731 | |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 732 | g_free(as->ioeventfds); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 733 | as->ioeventfds = ioeventfds; |
| 734 | as->ioeventfd_nb = ioeventfd_nb; |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 735 | flatview_unref(view); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 736 | } |
| 737 | |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 738 | static void address_space_update_topology_pass(AddressSpace *as, |
Paolo Bonzini | a9a0c06 | 2013-05-06 10:29:07 +0200 | [diff] [blame] | 739 | const FlatView *old_view, |
| 740 | const FlatView *new_view, |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 741 | bool adding) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 742 | { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 743 | unsigned iold, inew; |
| 744 | FlatRange *frold, *frnew; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 745 | |
| 746 | /* Generate a symmetric difference of the old and new memory maps. |
| 747 | * Kill ranges in the old map, and instantiate ranges in the new map. |
| 748 | */ |
| 749 | iold = inew = 0; |
Paolo Bonzini | a9a0c06 | 2013-05-06 10:29:07 +0200 | [diff] [blame] | 750 | while (iold < old_view->nr || inew < new_view->nr) { |
| 751 | if (iold < old_view->nr) { |
| 752 | frold = &old_view->ranges[iold]; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 753 | } else { |
| 754 | frold = NULL; |
| 755 | } |
Paolo Bonzini | a9a0c06 | 2013-05-06 10:29:07 +0200 | [diff] [blame] | 756 | if (inew < new_view->nr) { |
| 757 | frnew = &new_view->ranges[inew]; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 758 | } else { |
| 759 | frnew = NULL; |
| 760 | } |
| 761 | |
| 762 | if (frold |
| 763 | && (!frnew |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 764 | || int128_lt(frold->addr.start, frnew->addr.start) |
| 765 | || (int128_eq(frold->addr.start, frnew->addr.start) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 766 | && !flatrange_equal(frold, frnew)))) { |
Peter Crosthwaite | 41a6e47 | 2013-06-03 15:32:42 +1000 | [diff] [blame] | 767 | /* In old but not in new, or in both but attributes changed. */ |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 768 | |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 769 | if (!adding) { |
Avi Kivity | 72e22d2 | 2012-02-08 15:05:50 +0200 | [diff] [blame] | 770 | MEMORY_LISTENER_UPDATE_REGION(frold, as, Reverse, region_del); |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 771 | } |
| 772 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 773 | ++iold; |
| 774 | } else if (frold && frnew && flatrange_equal(frold, frnew)) { |
Peter Crosthwaite | 41a6e47 | 2013-06-03 15:32:42 +1000 | [diff] [blame] | 775 | /* In both and unchanged (except logging may have changed) */ |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 776 | |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 777 | if (adding) { |
Avi Kivity | 50c1e14 | 2012-02-08 21:36:02 +0200 | [diff] [blame] | 778 | MEMORY_LISTENER_UPDATE_REGION(frnew, as, Forward, region_nop); |
Paolo Bonzini | b2dfd71 | 2015-04-25 14:38:30 +0200 | [diff] [blame] | 779 | if (frnew->dirty_log_mask & ~frold->dirty_log_mask) { |
| 780 | MEMORY_LISTENER_UPDATE_REGION(frnew, as, Forward, log_start, |
| 781 | frold->dirty_log_mask, |
| 782 | frnew->dirty_log_mask); |
| 783 | } |
| 784 | if (frold->dirty_log_mask & ~frnew->dirty_log_mask) { |
| 785 | MEMORY_LISTENER_UPDATE_REGION(frnew, as, Reverse, log_stop, |
| 786 | frold->dirty_log_mask, |
| 787 | frnew->dirty_log_mask); |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 788 | } |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 789 | } |
| 790 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 791 | ++iold; |
| 792 | ++inew; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 793 | } else { |
| 794 | /* In new */ |
| 795 | |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 796 | if (adding) { |
Avi Kivity | 72e22d2 | 2012-02-08 15:05:50 +0200 | [diff] [blame] | 797 | MEMORY_LISTENER_UPDATE_REGION(frnew, as, Forward, region_add); |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 798 | } |
| 799 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 800 | ++inew; |
| 801 | } |
| 802 | } |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 803 | } |
| 804 | |
| 805 | |
| 806 | static void address_space_update_topology(AddressSpace *as) |
| 807 | { |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 808 | FlatView *old_view = address_space_get_flatview(as); |
Paolo Bonzini | a9a0c06 | 2013-05-06 10:29:07 +0200 | [diff] [blame] | 809 | FlatView *new_view = generate_memory_topology(as->root); |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 810 | |
| 811 | address_space_update_topology_pass(as, old_view, new_view, false); |
| 812 | address_space_update_topology_pass(as, old_view, new_view, true); |
| 813 | |
Paolo Bonzini | 374f298 | 2013-05-17 12:37:03 +0200 | [diff] [blame] | 814 | /* Writes are protected by the BQL. */ |
| 815 | atomic_rcu_set(&as->current_map, new_view); |
| 816 | call_rcu(old_view, flatview_unref, rcu); |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 817 | |
| 818 | /* Note that all the old MemoryRegions are still alive up to this |
| 819 | * point. This relieves most MemoryListeners from the need to |
| 820 | * ref/unref the MemoryRegions they get---unless they use them |
| 821 | * outside the iothread mutex, in which case precise reference |
| 822 | * counting is necessary. |
| 823 | */ |
| 824 | flatview_unref(old_view); |
| 825 | |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 826 | address_space_update_ioeventfds(as); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 827 | } |
| 828 | |
Avi Kivity | 4ef4db8 | 2011-07-26 14:26:13 +0300 | [diff] [blame] | 829 | void memory_region_transaction_begin(void) |
| 830 | { |
Jan Kiszka | bb880de | 2012-08-23 13:02:32 +0200 | [diff] [blame] | 831 | qemu_flush_coalesced_mmio_buffer(); |
Avi Kivity | 4ef4db8 | 2011-07-26 14:26:13 +0300 | [diff] [blame] | 832 | ++memory_region_transaction_depth; |
| 833 | } |
| 834 | |
Gonglei | 4dc5615 | 2014-05-08 11:47:32 +0800 | [diff] [blame] | 835 | static void memory_region_clear_pending(void) |
| 836 | { |
| 837 | memory_region_update_pending = false; |
| 838 | ioeventfd_update_pending = false; |
| 839 | } |
| 840 | |
Avi Kivity | 4ef4db8 | 2011-07-26 14:26:13 +0300 | [diff] [blame] | 841 | void memory_region_transaction_commit(void) |
| 842 | { |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 843 | AddressSpace *as; |
| 844 | |
Avi Kivity | 4ef4db8 | 2011-07-26 14:26:13 +0300 | [diff] [blame] | 845 | assert(memory_region_transaction_depth); |
| 846 | --memory_region_transaction_depth; |
Gonglei | 4dc5615 | 2014-05-08 11:47:32 +0800 | [diff] [blame] | 847 | if (!memory_region_transaction_depth) { |
| 848 | if (memory_region_update_pending) { |
| 849 | MEMORY_LISTENER_CALL_GLOBAL(begin, Forward); |
Jan Kiszka | 02e2b95 | 2012-08-23 13:02:31 +0200 | [diff] [blame] | 850 | |
Gonglei | 4dc5615 | 2014-05-08 11:47:32 +0800 | [diff] [blame] | 851 | QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) { |
| 852 | address_space_update_topology(as); |
| 853 | } |
| 854 | |
| 855 | MEMORY_LISTENER_CALL_GLOBAL(commit, Forward); |
| 856 | } else if (ioeventfd_update_pending) { |
| 857 | QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) { |
| 858 | address_space_update_ioeventfds(as); |
| 859 | } |
Jan Kiszka | 02e2b95 | 2012-08-23 13:02:31 +0200 | [diff] [blame] | 860 | } |
Gonglei | 4dc5615 | 2014-05-08 11:47:32 +0800 | [diff] [blame] | 861 | memory_region_clear_pending(); |
| 862 | } |
Avi Kivity | 4ef4db8 | 2011-07-26 14:26:13 +0300 | [diff] [blame] | 863 | } |
| 864 | |
Avi Kivity | 545e92e | 2011-08-08 19:58:48 +0300 | [diff] [blame] | 865 | static void memory_region_destructor_none(MemoryRegion *mr) |
| 866 | { |
| 867 | } |
| 868 | |
| 869 | static void memory_region_destructor_ram(MemoryRegion *mr) |
| 870 | { |
| 871 | qemu_ram_free(mr->ram_addr); |
| 872 | } |
| 873 | |
Paolo Bonzini | dfde4e6 | 2013-05-06 10:46:11 +0200 | [diff] [blame] | 874 | static void memory_region_destructor_alias(MemoryRegion *mr) |
| 875 | { |
| 876 | memory_region_unref(mr->alias); |
| 877 | } |
| 878 | |
Avi Kivity | 545e92e | 2011-08-08 19:58:48 +0300 | [diff] [blame] | 879 | static void memory_region_destructor_ram_from_ptr(MemoryRegion *mr) |
| 880 | { |
| 881 | qemu_ram_free_from_ptr(mr->ram_addr); |
| 882 | } |
| 883 | |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 884 | static void memory_region_destructor_rom_device(MemoryRegion *mr) |
| 885 | { |
| 886 | qemu_ram_free(mr->ram_addr & TARGET_PAGE_MASK); |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 887 | } |
| 888 | |
Peter Crosthwaite | b4fefef | 2014-06-05 23:15:52 -0700 | [diff] [blame] | 889 | static bool memory_region_need_escape(char c) |
| 890 | { |
| 891 | return c == '/' || c == '[' || c == '\\' || c == ']'; |
| 892 | } |
| 893 | |
| 894 | static char *memory_region_escape_name(const char *name) |
| 895 | { |
| 896 | const char *p; |
| 897 | char *escaped, *q; |
| 898 | uint8_t c; |
| 899 | size_t bytes = 0; |
| 900 | |
| 901 | for (p = name; *p; p++) { |
| 902 | bytes += memory_region_need_escape(*p) ? 4 : 1; |
| 903 | } |
| 904 | if (bytes == p - name) { |
| 905 | return g_memdup(name, bytes + 1); |
| 906 | } |
| 907 | |
| 908 | escaped = g_malloc(bytes + 1); |
| 909 | for (p = name, q = escaped; *p; p++) { |
| 910 | c = *p; |
| 911 | if (unlikely(memory_region_need_escape(c))) { |
| 912 | *q++ = '\\'; |
| 913 | *q++ = 'x'; |
| 914 | *q++ = "0123456789abcdef"[c >> 4]; |
| 915 | c = "0123456789abcdef"[c & 15]; |
| 916 | } |
| 917 | *q++ = c; |
| 918 | } |
| 919 | *q = 0; |
| 920 | return escaped; |
| 921 | } |
| 922 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 923 | void memory_region_init(MemoryRegion *mr, |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 924 | Object *owner, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 925 | const char *name, |
| 926 | uint64_t size) |
| 927 | { |
Paolo Bonzini | 22a893e | 2014-06-11 10:58:06 +0200 | [diff] [blame] | 928 | if (!owner) { |
Andreas Färber | 210eb93 | 2015-03-12 15:37:07 +0100 | [diff] [blame] | 929 | owner = container_get(qdev_get_machine(), "/unattached"); |
Paolo Bonzini | 22a893e | 2014-06-11 10:58:06 +0200 | [diff] [blame] | 930 | } |
Peter Crosthwaite | b4fefef | 2014-06-05 23:15:52 -0700 | [diff] [blame] | 931 | |
Paolo Bonzini | 22a893e | 2014-06-11 10:58:06 +0200 | [diff] [blame] | 932 | object_initialize(mr, sizeof(*mr), TYPE_MEMORY_REGION); |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 933 | mr->size = int128_make64(size); |
| 934 | if (size == UINT64_MAX) { |
| 935 | mr->size = int128_2_64(); |
| 936 | } |
Peter Maydell | 302fa28 | 2014-08-19 20:05:46 +0100 | [diff] [blame] | 937 | mr->name = g_strdup(name); |
Peter Crosthwaite | b4fefef | 2014-06-05 23:15:52 -0700 | [diff] [blame] | 938 | |
| 939 | if (name) { |
Peter Crosthwaite | 843ef73 | 2014-08-19 23:56:26 -0700 | [diff] [blame] | 940 | char *escaped_name = memory_region_escape_name(name); |
| 941 | char *name_array = g_strdup_printf("%s[*]", escaped_name); |
| 942 | object_property_add_child(owner, name_array, OBJECT(mr), &error_abort); |
Peter Crosthwaite | b4fefef | 2014-06-05 23:15:52 -0700 | [diff] [blame] | 943 | object_unref(OBJECT(mr)); |
Peter Crosthwaite | 843ef73 | 2014-08-19 23:56:26 -0700 | [diff] [blame] | 944 | g_free(name_array); |
| 945 | g_free(escaped_name); |
Peter Crosthwaite | b4fefef | 2014-06-05 23:15:52 -0700 | [diff] [blame] | 946 | } |
| 947 | } |
| 948 | |
Peter Crosthwaite | 409ddd0 | 2014-06-05 23:16:27 -0700 | [diff] [blame] | 949 | static void memory_region_get_addr(Object *obj, Visitor *v, void *opaque, |
| 950 | const char *name, Error **errp) |
| 951 | { |
| 952 | MemoryRegion *mr = MEMORY_REGION(obj); |
| 953 | uint64_t value = mr->addr; |
| 954 | |
| 955 | visit_type_uint64(v, &value, name, errp); |
| 956 | } |
| 957 | |
| 958 | static void memory_region_get_container(Object *obj, Visitor *v, void *opaque, |
| 959 | const char *name, Error **errp) |
| 960 | { |
| 961 | MemoryRegion *mr = MEMORY_REGION(obj); |
| 962 | gchar *path = (gchar *)""; |
| 963 | |
| 964 | if (mr->container) { |
| 965 | path = object_get_canonical_path(OBJECT(mr->container)); |
| 966 | } |
| 967 | visit_type_str(v, &path, name, errp); |
| 968 | if (mr->container) { |
| 969 | g_free(path); |
| 970 | } |
| 971 | } |
| 972 | |
| 973 | static Object *memory_region_resolve_container(Object *obj, void *opaque, |
| 974 | const char *part) |
| 975 | { |
| 976 | MemoryRegion *mr = MEMORY_REGION(obj); |
| 977 | |
| 978 | return OBJECT(mr->container); |
| 979 | } |
| 980 | |
Peter Crosthwaite | d33382d | 2014-06-05 23:17:01 -0700 | [diff] [blame] | 981 | static void memory_region_get_priority(Object *obj, Visitor *v, void *opaque, |
| 982 | const char *name, Error **errp) |
| 983 | { |
| 984 | MemoryRegion *mr = MEMORY_REGION(obj); |
| 985 | int32_t value = mr->priority; |
| 986 | |
| 987 | visit_type_int32(v, &value, name, errp); |
| 988 | } |
| 989 | |
| 990 | static bool memory_region_get_may_overlap(Object *obj, Error **errp) |
| 991 | { |
| 992 | MemoryRegion *mr = MEMORY_REGION(obj); |
| 993 | |
| 994 | return mr->may_overlap; |
| 995 | } |
| 996 | |
Peter Crosthwaite | 52aef7b | 2014-06-05 23:17:35 -0700 | [diff] [blame] | 997 | static void memory_region_get_size(Object *obj, Visitor *v, void *opaque, |
| 998 | const char *name, Error **errp) |
| 999 | { |
| 1000 | MemoryRegion *mr = MEMORY_REGION(obj); |
| 1001 | uint64_t value = memory_region_size(mr); |
| 1002 | |
| 1003 | visit_type_uint64(v, &value, name, errp); |
| 1004 | } |
| 1005 | |
Peter Crosthwaite | b4fefef | 2014-06-05 23:15:52 -0700 | [diff] [blame] | 1006 | static void memory_region_initfn(Object *obj) |
| 1007 | { |
| 1008 | MemoryRegion *mr = MEMORY_REGION(obj); |
Peter Crosthwaite | 409ddd0 | 2014-06-05 23:16:27 -0700 | [diff] [blame] | 1009 | ObjectProperty *op; |
Peter Crosthwaite | b4fefef | 2014-06-05 23:15:52 -0700 | [diff] [blame] | 1010 | |
| 1011 | mr->ops = &unassigned_mem_ops; |
Paolo Bonzini | ec05ec2 | 2015-03-29 09:31:43 +0200 | [diff] [blame] | 1012 | mr->ram_addr = RAM_ADDR_INVALID; |
Peter Crosthwaite | b4fefef | 2014-06-05 23:15:52 -0700 | [diff] [blame] | 1013 | mr->enabled = true; |
| 1014 | mr->romd_mode = true; |
| 1015 | mr->destructor = memory_region_destructor_none; |
| 1016 | QTAILQ_INIT(&mr->subregions); |
| 1017 | QTAILQ_INIT(&mr->coalesced); |
Peter Crosthwaite | 409ddd0 | 2014-06-05 23:16:27 -0700 | [diff] [blame] | 1018 | |
| 1019 | op = object_property_add(OBJECT(mr), "container", |
| 1020 | "link<" TYPE_MEMORY_REGION ">", |
| 1021 | memory_region_get_container, |
| 1022 | NULL, /* memory_region_set_container */ |
| 1023 | NULL, NULL, &error_abort); |
| 1024 | op->resolve = memory_region_resolve_container; |
| 1025 | |
| 1026 | object_property_add(OBJECT(mr), "addr", "uint64", |
| 1027 | memory_region_get_addr, |
| 1028 | NULL, /* memory_region_set_addr */ |
| 1029 | NULL, NULL, &error_abort); |
Peter Crosthwaite | d33382d | 2014-06-05 23:17:01 -0700 | [diff] [blame] | 1030 | object_property_add(OBJECT(mr), "priority", "uint32", |
| 1031 | memory_region_get_priority, |
| 1032 | NULL, /* memory_region_set_priority */ |
| 1033 | NULL, NULL, &error_abort); |
| 1034 | object_property_add_bool(OBJECT(mr), "may-overlap", |
| 1035 | memory_region_get_may_overlap, |
| 1036 | NULL, /* memory_region_set_may_overlap */ |
| 1037 | &error_abort); |
Peter Crosthwaite | 52aef7b | 2014-06-05 23:17:35 -0700 | [diff] [blame] | 1038 | object_property_add(OBJECT(mr), "size", "uint64", |
| 1039 | memory_region_get_size, |
| 1040 | NULL, /* memory_region_set_size, */ |
| 1041 | NULL, NULL, &error_abort); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1042 | } |
| 1043 | |
Paolo Bonzini | b018ddf | 2013-05-24 14:48:38 +0200 | [diff] [blame] | 1044 | static uint64_t unassigned_mem_read(void *opaque, hwaddr addr, |
| 1045 | unsigned size) |
| 1046 | { |
| 1047 | #ifdef DEBUG_UNASSIGNED |
| 1048 | printf("Unassigned mem read " TARGET_FMT_plx "\n", addr); |
| 1049 | #endif |
Andreas Färber | 4917cf4 | 2013-05-27 05:17:50 +0200 | [diff] [blame] | 1050 | if (current_cpu != NULL) { |
| 1051 | cpu_unassigned_access(current_cpu, addr, false, false, 0, size); |
Andreas Färber | c658b94 | 2013-05-27 06:49:53 +0200 | [diff] [blame] | 1052 | } |
Jan Kiszka | 68a7439 | 2013-09-02 18:43:31 +0200 | [diff] [blame] | 1053 | return 0; |
Paolo Bonzini | b018ddf | 2013-05-24 14:48:38 +0200 | [diff] [blame] | 1054 | } |
| 1055 | |
| 1056 | static void unassigned_mem_write(void *opaque, hwaddr addr, |
| 1057 | uint64_t val, unsigned size) |
| 1058 | { |
| 1059 | #ifdef DEBUG_UNASSIGNED |
| 1060 | printf("Unassigned mem write " TARGET_FMT_plx " = 0x%"PRIx64"\n", addr, val); |
| 1061 | #endif |
Andreas Färber | 4917cf4 | 2013-05-27 05:17:50 +0200 | [diff] [blame] | 1062 | if (current_cpu != NULL) { |
| 1063 | cpu_unassigned_access(current_cpu, addr, true, false, 0, size); |
Andreas Färber | c658b94 | 2013-05-27 06:49:53 +0200 | [diff] [blame] | 1064 | } |
Paolo Bonzini | b018ddf | 2013-05-24 14:48:38 +0200 | [diff] [blame] | 1065 | } |
| 1066 | |
Paolo Bonzini | d197063 | 2013-05-24 13:23:38 +0200 | [diff] [blame] | 1067 | static bool unassigned_mem_accepts(void *opaque, hwaddr addr, |
| 1068 | unsigned size, bool is_write) |
| 1069 | { |
| 1070 | return false; |
| 1071 | } |
| 1072 | |
| 1073 | const MemoryRegionOps unassigned_mem_ops = { |
| 1074 | .valid.accepts = unassigned_mem_accepts, |
| 1075 | .endianness = DEVICE_NATIVE_ENDIAN, |
| 1076 | }; |
| 1077 | |
Paolo Bonzini | d270203 | 2013-05-24 11:55:06 +0200 | [diff] [blame] | 1078 | bool memory_region_access_valid(MemoryRegion *mr, |
| 1079 | hwaddr addr, |
| 1080 | unsigned size, |
| 1081 | bool is_write) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1082 | { |
Paolo Bonzini | a014ed0 | 2013-05-24 17:48:52 +0200 | [diff] [blame] | 1083 | int access_size_min, access_size_max; |
| 1084 | int access_size, i; |
Avi Kivity | 897fa7c | 2011-11-13 13:05:27 +0200 | [diff] [blame] | 1085 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1086 | if (!mr->ops->valid.unaligned && (addr & (size - 1))) { |
| 1087 | return false; |
| 1088 | } |
| 1089 | |
Paolo Bonzini | a014ed0 | 2013-05-24 17:48:52 +0200 | [diff] [blame] | 1090 | if (!mr->ops->valid.accepts) { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1091 | return true; |
| 1092 | } |
| 1093 | |
Paolo Bonzini | a014ed0 | 2013-05-24 17:48:52 +0200 | [diff] [blame] | 1094 | access_size_min = mr->ops->valid.min_access_size; |
| 1095 | if (!mr->ops->valid.min_access_size) { |
| 1096 | access_size_min = 1; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1097 | } |
Paolo Bonzini | a014ed0 | 2013-05-24 17:48:52 +0200 | [diff] [blame] | 1098 | |
| 1099 | access_size_max = mr->ops->valid.max_access_size; |
| 1100 | if (!mr->ops->valid.max_access_size) { |
| 1101 | access_size_max = 4; |
| 1102 | } |
| 1103 | |
| 1104 | access_size = MAX(MIN(size, access_size_max), access_size_min); |
| 1105 | for (i = 0; i < size; i += access_size) { |
| 1106 | if (!mr->ops->valid.accepts(mr->opaque, addr + i, access_size, |
| 1107 | is_write)) { |
| 1108 | return false; |
| 1109 | } |
| 1110 | } |
| 1111 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1112 | return true; |
| 1113 | } |
| 1114 | |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 1115 | static MemTxResult memory_region_dispatch_read1(MemoryRegion *mr, |
| 1116 | hwaddr addr, |
| 1117 | uint64_t *pval, |
| 1118 | unsigned size, |
| 1119 | MemTxAttrs attrs) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1120 | { |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 1121 | *pval = 0; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1122 | |
Paolo Bonzini | ce5d2f3 | 2013-05-24 17:45:48 +0200 | [diff] [blame] | 1123 | if (mr->ops->read) { |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 1124 | return access_with_adjusted_size(addr, pval, size, |
| 1125 | mr->ops->impl.min_access_size, |
| 1126 | mr->ops->impl.max_access_size, |
| 1127 | memory_region_read_accessor, |
| 1128 | mr, attrs); |
| 1129 | } else if (mr->ops->read_with_attrs) { |
| 1130 | return access_with_adjusted_size(addr, pval, size, |
| 1131 | mr->ops->impl.min_access_size, |
| 1132 | mr->ops->impl.max_access_size, |
| 1133 | memory_region_read_with_attrs_accessor, |
| 1134 | mr, attrs); |
Paolo Bonzini | ce5d2f3 | 2013-05-24 17:45:48 +0200 | [diff] [blame] | 1135 | } else { |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 1136 | return access_with_adjusted_size(addr, pval, size, 1, 4, |
| 1137 | memory_region_oldmmio_read_accessor, |
| 1138 | mr, attrs); |
Avi Kivity | 74901c3 | 2011-07-26 14:26:10 +0300 | [diff] [blame] | 1139 | } |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1140 | } |
| 1141 | |
Peter Maydell | 3b64349 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 1142 | MemTxResult memory_region_dispatch_read(MemoryRegion *mr, |
| 1143 | hwaddr addr, |
| 1144 | uint64_t *pval, |
| 1145 | unsigned size, |
| 1146 | MemTxAttrs attrs) |
Avi Kivity | a621f38 | 2012-01-02 13:12:08 +0200 | [diff] [blame] | 1147 | { |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 1148 | MemTxResult r; |
| 1149 | |
Paolo Bonzini | 791af8c | 2013-05-24 16:10:39 +0200 | [diff] [blame] | 1150 | if (!memory_region_access_valid(mr, addr, size, false)) { |
| 1151 | *pval = unassigned_mem_read(mr, addr, size); |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 1152 | return MEMTX_DECODE_ERROR; |
Paolo Bonzini | 791af8c | 2013-05-24 16:10:39 +0200 | [diff] [blame] | 1153 | } |
Avi Kivity | a621f38 | 2012-01-02 13:12:08 +0200 | [diff] [blame] | 1154 | |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 1155 | r = memory_region_dispatch_read1(mr, addr, pval, size, attrs); |
Paolo Bonzini | 791af8c | 2013-05-24 16:10:39 +0200 | [diff] [blame] | 1156 | adjust_endianness(mr, pval, size); |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 1157 | return r; |
Avi Kivity | a621f38 | 2012-01-02 13:12:08 +0200 | [diff] [blame] | 1158 | } |
| 1159 | |
Peter Maydell | 3b64349 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 1160 | MemTxResult memory_region_dispatch_write(MemoryRegion *mr, |
| 1161 | hwaddr addr, |
| 1162 | uint64_t data, |
| 1163 | unsigned size, |
| 1164 | MemTxAttrs attrs) |
Avi Kivity | a621f38 | 2012-01-02 13:12:08 +0200 | [diff] [blame] | 1165 | { |
Avi Kivity | 897fa7c | 2011-11-13 13:05:27 +0200 | [diff] [blame] | 1166 | if (!memory_region_access_valid(mr, addr, size, true)) { |
Paolo Bonzini | b018ddf | 2013-05-24 14:48:38 +0200 | [diff] [blame] | 1167 | unassigned_mem_write(mr, addr, data, size); |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 1168 | return MEMTX_DECODE_ERROR; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1169 | } |
| 1170 | |
Avi Kivity | a621f38 | 2012-01-02 13:12:08 +0200 | [diff] [blame] | 1171 | adjust_endianness(mr, &data, size); |
| 1172 | |
Paolo Bonzini | ce5d2f3 | 2013-05-24 17:45:48 +0200 | [diff] [blame] | 1173 | if (mr->ops->write) { |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 1174 | return access_with_adjusted_size(addr, &data, size, |
| 1175 | mr->ops->impl.min_access_size, |
| 1176 | mr->ops->impl.max_access_size, |
| 1177 | memory_region_write_accessor, mr, |
| 1178 | attrs); |
| 1179 | } else if (mr->ops->write_with_attrs) { |
| 1180 | return |
| 1181 | access_with_adjusted_size(addr, &data, size, |
| 1182 | mr->ops->impl.min_access_size, |
| 1183 | mr->ops->impl.max_access_size, |
| 1184 | memory_region_write_with_attrs_accessor, |
| 1185 | mr, attrs); |
Paolo Bonzini | ce5d2f3 | 2013-05-24 17:45:48 +0200 | [diff] [blame] | 1186 | } else { |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 1187 | return access_with_adjusted_size(addr, &data, size, 1, 4, |
| 1188 | memory_region_oldmmio_write_accessor, |
| 1189 | mr, attrs); |
Avi Kivity | 74901c3 | 2011-07-26 14:26:10 +0300 | [diff] [blame] | 1190 | } |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1191 | } |
| 1192 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1193 | void memory_region_init_io(MemoryRegion *mr, |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 1194 | Object *owner, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1195 | const MemoryRegionOps *ops, |
| 1196 | void *opaque, |
| 1197 | const char *name, |
| 1198 | uint64_t size) |
| 1199 | { |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 1200 | memory_region_init(mr, owner, name, size); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1201 | mr->ops = ops; |
| 1202 | mr->opaque = opaque; |
Avi Kivity | 14a3c10 | 2011-07-26 14:26:06 +0300 | [diff] [blame] | 1203 | mr->terminates = true; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1204 | } |
| 1205 | |
| 1206 | void memory_region_init_ram(MemoryRegion *mr, |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 1207 | Object *owner, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1208 | const char *name, |
Hu Tao | 4994653 | 2014-09-09 13:27:55 +0800 | [diff] [blame] | 1209 | uint64_t size, |
| 1210 | Error **errp) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1211 | { |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 1212 | memory_region_init(mr, owner, name, size); |
Avi Kivity | 8ea9252 | 2011-12-08 15:58:43 +0200 | [diff] [blame] | 1213 | mr->ram = true; |
Avi Kivity | 14a3c10 | 2011-07-26 14:26:06 +0300 | [diff] [blame] | 1214 | mr->terminates = true; |
Avi Kivity | 545e92e | 2011-08-08 19:58:48 +0300 | [diff] [blame] | 1215 | mr->destructor = memory_region_destructor_ram; |
Hu Tao | 4994653 | 2014-09-09 13:27:55 +0800 | [diff] [blame] | 1216 | mr->ram_addr = qemu_ram_alloc(size, mr, errp); |
Paolo Bonzini | 677e780 | 2015-03-23 10:53:21 +0100 | [diff] [blame] | 1217 | mr->dirty_log_mask = tcg_enabled() ? (1 << DIRTY_MEMORY_CODE) : 0; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1218 | } |
| 1219 | |
Michael S. Tsirkin | 60786ef | 2014-11-17 00:24:36 +0200 | [diff] [blame] | 1220 | void memory_region_init_resizeable_ram(MemoryRegion *mr, |
| 1221 | Object *owner, |
| 1222 | const char *name, |
| 1223 | uint64_t size, |
| 1224 | uint64_t max_size, |
| 1225 | void (*resized)(const char*, |
| 1226 | uint64_t length, |
| 1227 | void *host), |
| 1228 | Error **errp) |
| 1229 | { |
| 1230 | memory_region_init(mr, owner, name, size); |
| 1231 | mr->ram = true; |
| 1232 | mr->terminates = true; |
| 1233 | mr->destructor = memory_region_destructor_ram; |
| 1234 | mr->ram_addr = qemu_ram_alloc_resizeable(size, max_size, resized, mr, errp); |
Paolo Bonzini | 677e780 | 2015-03-23 10:53:21 +0100 | [diff] [blame] | 1235 | mr->dirty_log_mask = tcg_enabled() ? (1 << DIRTY_MEMORY_CODE) : 0; |
Michael S. Tsirkin | 60786ef | 2014-11-17 00:24:36 +0200 | [diff] [blame] | 1236 | } |
| 1237 | |
Paolo Bonzini | 0b183fc | 2014-05-14 17:43:19 +0800 | [diff] [blame] | 1238 | #ifdef __linux__ |
| 1239 | void memory_region_init_ram_from_file(MemoryRegion *mr, |
| 1240 | struct Object *owner, |
| 1241 | const char *name, |
| 1242 | uint64_t size, |
Paolo Bonzini | dbcb898 | 2014-06-10 19:15:24 +0800 | [diff] [blame] | 1243 | bool share, |
Paolo Bonzini | 7f56e74 | 2014-05-14 17:43:20 +0800 | [diff] [blame] | 1244 | const char *path, |
| 1245 | Error **errp) |
Paolo Bonzini | 0b183fc | 2014-05-14 17:43:19 +0800 | [diff] [blame] | 1246 | { |
| 1247 | memory_region_init(mr, owner, name, size); |
| 1248 | mr->ram = true; |
| 1249 | mr->terminates = true; |
| 1250 | mr->destructor = memory_region_destructor_ram; |
Paolo Bonzini | dbcb898 | 2014-06-10 19:15:24 +0800 | [diff] [blame] | 1251 | mr->ram_addr = qemu_ram_alloc_from_file(size, mr, share, path, errp); |
Paolo Bonzini | 677e780 | 2015-03-23 10:53:21 +0100 | [diff] [blame] | 1252 | mr->dirty_log_mask = tcg_enabled() ? (1 << DIRTY_MEMORY_CODE) : 0; |
Paolo Bonzini | 0b183fc | 2014-05-14 17:43:19 +0800 | [diff] [blame] | 1253 | } |
| 1254 | #endif |
| 1255 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1256 | void memory_region_init_ram_ptr(MemoryRegion *mr, |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 1257 | Object *owner, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1258 | const char *name, |
| 1259 | uint64_t size, |
| 1260 | void *ptr) |
| 1261 | { |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 1262 | memory_region_init(mr, owner, name, size); |
Avi Kivity | 8ea9252 | 2011-12-08 15:58:43 +0200 | [diff] [blame] | 1263 | mr->ram = true; |
Avi Kivity | 14a3c10 | 2011-07-26 14:26:06 +0300 | [diff] [blame] | 1264 | mr->terminates = true; |
Avi Kivity | 545e92e | 2011-08-08 19:58:48 +0300 | [diff] [blame] | 1265 | mr->destructor = memory_region_destructor_ram_from_ptr; |
Paolo Bonzini | 677e780 | 2015-03-23 10:53:21 +0100 | [diff] [blame] | 1266 | mr->dirty_log_mask = tcg_enabled() ? (1 << DIRTY_MEMORY_CODE) : 0; |
Hu Tao | ef701d7 | 2014-09-09 13:27:54 +0800 | [diff] [blame] | 1267 | |
| 1268 | /* qemu_ram_alloc_from_ptr cannot fail with ptr != NULL. */ |
| 1269 | assert(ptr != NULL); |
| 1270 | mr->ram_addr = qemu_ram_alloc_from_ptr(size, ptr, mr, &error_abort); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1271 | } |
| 1272 | |
Nikunj A Dadhania | e4dc3f5 | 2014-09-15 09:28:23 +0530 | [diff] [blame] | 1273 | void memory_region_set_skip_dump(MemoryRegion *mr) |
| 1274 | { |
| 1275 | mr->skip_dump = true; |
| 1276 | } |
| 1277 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1278 | void memory_region_init_alias(MemoryRegion *mr, |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 1279 | Object *owner, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1280 | const char *name, |
| 1281 | MemoryRegion *orig, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1282 | hwaddr offset, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1283 | uint64_t size) |
| 1284 | { |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 1285 | memory_region_init(mr, owner, name, size); |
Paolo Bonzini | dfde4e6 | 2013-05-06 10:46:11 +0200 | [diff] [blame] | 1286 | memory_region_ref(orig); |
| 1287 | mr->destructor = memory_region_destructor_alias; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1288 | mr->alias = orig; |
| 1289 | mr->alias_offset = offset; |
| 1290 | } |
| 1291 | |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 1292 | void memory_region_init_rom_device(MemoryRegion *mr, |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 1293 | Object *owner, |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 1294 | const MemoryRegionOps *ops, |
Avi Kivity | 75f5941 | 2011-08-26 00:35:15 +0300 | [diff] [blame] | 1295 | void *opaque, |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 1296 | const char *name, |
Hu Tao | 33e0eb5 | 2014-09-09 13:27:57 +0800 | [diff] [blame] | 1297 | uint64_t size, |
| 1298 | Error **errp) |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 1299 | { |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 1300 | memory_region_init(mr, owner, name, size); |
Avi Kivity | 7bc2b9c | 2011-08-25 14:56:14 +0300 | [diff] [blame] | 1301 | mr->ops = ops; |
Avi Kivity | 75f5941 | 2011-08-26 00:35:15 +0300 | [diff] [blame] | 1302 | mr->opaque = opaque; |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 1303 | mr->terminates = true; |
Avi Kivity | 75c578d | 2012-01-02 15:40:52 +0200 | [diff] [blame] | 1304 | mr->rom_device = true; |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 1305 | mr->destructor = memory_region_destructor_rom_device; |
Hu Tao | 33e0eb5 | 2014-09-09 13:27:57 +0800 | [diff] [blame] | 1306 | mr->ram_addr = qemu_ram_alloc(size, mr, errp); |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 1307 | } |
| 1308 | |
Avi Kivity | 3095115 | 2012-10-30 13:47:46 +0200 | [diff] [blame] | 1309 | void memory_region_init_iommu(MemoryRegion *mr, |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 1310 | Object *owner, |
Avi Kivity | 3095115 | 2012-10-30 13:47:46 +0200 | [diff] [blame] | 1311 | const MemoryRegionIOMMUOps *ops, |
| 1312 | const char *name, |
| 1313 | uint64_t size) |
| 1314 | { |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 1315 | memory_region_init(mr, owner, name, size); |
Avi Kivity | 3095115 | 2012-10-30 13:47:46 +0200 | [diff] [blame] | 1316 | mr->iommu_ops = ops, |
| 1317 | mr->terminates = true; /* then re-forwards */ |
David Gibson | 0686657 | 2013-05-14 19:13:56 +1000 | [diff] [blame] | 1318 | notifier_list_init(&mr->iommu_notify); |
Avi Kivity | 3095115 | 2012-10-30 13:47:46 +0200 | [diff] [blame] | 1319 | } |
| 1320 | |
Jan Kiszka | 1660e72 | 2011-10-23 16:01:19 +0200 | [diff] [blame] | 1321 | void memory_region_init_reservation(MemoryRegion *mr, |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 1322 | Object *owner, |
Jan Kiszka | 1660e72 | 2011-10-23 16:01:19 +0200 | [diff] [blame] | 1323 | const char *name, |
| 1324 | uint64_t size) |
| 1325 | { |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 1326 | memory_region_init_io(mr, owner, &unassigned_mem_ops, mr, name, size); |
Jan Kiszka | 1660e72 | 2011-10-23 16:01:19 +0200 | [diff] [blame] | 1327 | } |
| 1328 | |
Peter Crosthwaite | b4fefef | 2014-06-05 23:15:52 -0700 | [diff] [blame] | 1329 | static void memory_region_finalize(Object *obj) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1330 | { |
Peter Crosthwaite | b4fefef | 2014-06-05 23:15:52 -0700 | [diff] [blame] | 1331 | MemoryRegion *mr = MEMORY_REGION(obj); |
| 1332 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1333 | assert(QTAILQ_EMPTY(&mr->subregions)); |
Avi Kivity | 545e92e | 2011-08-08 19:58:48 +0300 | [diff] [blame] | 1334 | mr->destructor(mr); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1335 | memory_region_clear_coalescing(mr); |
Peter Maydell | 302fa28 | 2014-08-19 20:05:46 +0100 | [diff] [blame] | 1336 | g_free((char *)mr->name); |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1337 | g_free(mr->ioeventfds); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1338 | } |
| 1339 | |
Paolo Bonzini | 803c081 | 2013-05-07 06:59:09 +0200 | [diff] [blame] | 1340 | Object *memory_region_owner(MemoryRegion *mr) |
| 1341 | { |
Paolo Bonzini | 22a893e | 2014-06-11 10:58:06 +0200 | [diff] [blame] | 1342 | Object *obj = OBJECT(mr); |
| 1343 | return obj->parent; |
Paolo Bonzini | 803c081 | 2013-05-07 06:59:09 +0200 | [diff] [blame] | 1344 | } |
| 1345 | |
Paolo Bonzini | 46637be | 2013-05-07 09:06:00 +0200 | [diff] [blame] | 1346 | void memory_region_ref(MemoryRegion *mr) |
| 1347 | { |
Paolo Bonzini | 22a893e | 2014-06-11 10:58:06 +0200 | [diff] [blame] | 1348 | /* MMIO callbacks most likely will access data that belongs |
| 1349 | * to the owner, hence the need to ref/unref the owner whenever |
| 1350 | * the memory region is in use. |
| 1351 | * |
| 1352 | * The memory region is a child of its owner. As long as the |
| 1353 | * owner doesn't call unparent itself on the memory region, |
| 1354 | * ref-ing the owner will also keep the memory region alive. |
| 1355 | * Memory regions without an owner are supposed to never go away, |
| 1356 | * but we still ref/unref them for debugging purposes. |
| 1357 | */ |
| 1358 | Object *obj = OBJECT(mr); |
| 1359 | if (obj && obj->parent) { |
| 1360 | object_ref(obj->parent); |
Peter Crosthwaite | b4fefef | 2014-06-05 23:15:52 -0700 | [diff] [blame] | 1361 | } else { |
Paolo Bonzini | 22a893e | 2014-06-11 10:58:06 +0200 | [diff] [blame] | 1362 | object_ref(obj); |
Paolo Bonzini | 46637be | 2013-05-07 09:06:00 +0200 | [diff] [blame] | 1363 | } |
| 1364 | } |
| 1365 | |
| 1366 | void memory_region_unref(MemoryRegion *mr) |
| 1367 | { |
Paolo Bonzini | 22a893e | 2014-06-11 10:58:06 +0200 | [diff] [blame] | 1368 | Object *obj = OBJECT(mr); |
| 1369 | if (obj && obj->parent) { |
| 1370 | object_unref(obj->parent); |
Peter Crosthwaite | b4fefef | 2014-06-05 23:15:52 -0700 | [diff] [blame] | 1371 | } else { |
Paolo Bonzini | 22a893e | 2014-06-11 10:58:06 +0200 | [diff] [blame] | 1372 | object_unref(obj); |
Paolo Bonzini | 46637be | 2013-05-07 09:06:00 +0200 | [diff] [blame] | 1373 | } |
| 1374 | } |
| 1375 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1376 | uint64_t memory_region_size(MemoryRegion *mr) |
| 1377 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1378 | if (int128_eq(mr->size, int128_2_64())) { |
| 1379 | return UINT64_MAX; |
| 1380 | } |
| 1381 | return int128_get64(mr->size); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1382 | } |
| 1383 | |
Peter Crosthwaite | 5d546d4 | 2014-08-14 23:55:03 -0700 | [diff] [blame] | 1384 | const char *memory_region_name(const MemoryRegion *mr) |
Avi Kivity | 8991c79 | 2011-12-20 15:53:11 +0200 | [diff] [blame] | 1385 | { |
Peter Crosthwaite | d1dd32a | 2014-08-25 20:10:24 -0700 | [diff] [blame] | 1386 | if (!mr->name) { |
| 1387 | ((MemoryRegion *)mr)->name = |
| 1388 | object_get_canonical_path_component(OBJECT(mr)); |
| 1389 | } |
Peter Maydell | 302fa28 | 2014-08-19 20:05:46 +0100 | [diff] [blame] | 1390 | return mr->name; |
Avi Kivity | 8991c79 | 2011-12-20 15:53:11 +0200 | [diff] [blame] | 1391 | } |
| 1392 | |
Avi Kivity | 8ea9252 | 2011-12-08 15:58:43 +0200 | [diff] [blame] | 1393 | bool memory_region_is_ram(MemoryRegion *mr) |
| 1394 | { |
| 1395 | return mr->ram; |
| 1396 | } |
| 1397 | |
Nikunj A Dadhania | e4dc3f5 | 2014-09-15 09:28:23 +0530 | [diff] [blame] | 1398 | bool memory_region_is_skip_dump(MemoryRegion *mr) |
| 1399 | { |
| 1400 | return mr->skip_dump; |
| 1401 | } |
| 1402 | |
Paolo Bonzini | 2d1a35b | 2015-03-23 10:50:57 +0100 | [diff] [blame] | 1403 | uint8_t memory_region_get_dirty_log_mask(MemoryRegion *mr) |
Avi Kivity | 55043ba | 2011-12-15 17:20:34 +0200 | [diff] [blame] | 1404 | { |
Paolo Bonzini | 6f6a5ef | 2015-03-23 10:57:21 +0100 | [diff] [blame] | 1405 | uint8_t mask = mr->dirty_log_mask; |
| 1406 | if (global_dirty_log) { |
| 1407 | mask |= (1 << DIRTY_MEMORY_MIGRATION); |
| 1408 | } |
| 1409 | return mask; |
Avi Kivity | 55043ba | 2011-12-15 17:20:34 +0200 | [diff] [blame] | 1410 | } |
| 1411 | |
Paolo Bonzini | 2d1a35b | 2015-03-23 10:50:57 +0100 | [diff] [blame] | 1412 | bool memory_region_is_logging(MemoryRegion *mr, uint8_t client) |
| 1413 | { |
| 1414 | return memory_region_get_dirty_log_mask(mr) & (1 << client); |
| 1415 | } |
| 1416 | |
Avi Kivity | ce7923d | 2011-12-08 16:05:11 +0200 | [diff] [blame] | 1417 | bool memory_region_is_rom(MemoryRegion *mr) |
| 1418 | { |
| 1419 | return mr->ram && mr->readonly; |
| 1420 | } |
| 1421 | |
Avi Kivity | 3095115 | 2012-10-30 13:47:46 +0200 | [diff] [blame] | 1422 | bool memory_region_is_iommu(MemoryRegion *mr) |
| 1423 | { |
| 1424 | return mr->iommu_ops; |
| 1425 | } |
| 1426 | |
David Gibson | 0686657 | 2013-05-14 19:13:56 +1000 | [diff] [blame] | 1427 | void memory_region_register_iommu_notifier(MemoryRegion *mr, Notifier *n) |
| 1428 | { |
| 1429 | notifier_list_add(&mr->iommu_notify, n); |
| 1430 | } |
| 1431 | |
| 1432 | void memory_region_unregister_iommu_notifier(Notifier *n) |
| 1433 | { |
| 1434 | notifier_remove(n); |
| 1435 | } |
| 1436 | |
| 1437 | void memory_region_notify_iommu(MemoryRegion *mr, |
| 1438 | IOMMUTLBEntry entry) |
| 1439 | { |
| 1440 | assert(memory_region_is_iommu(mr)); |
| 1441 | notifier_list_notify(&mr->iommu_notify, &entry); |
| 1442 | } |
| 1443 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1444 | void memory_region_set_log(MemoryRegion *mr, bool log, unsigned client) |
| 1445 | { |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 1446 | uint8_t mask = 1 << client; |
| 1447 | |
Paolo Bonzini | dbddac6 | 2015-03-23 10:31:53 +0100 | [diff] [blame] | 1448 | assert(client == DIRTY_MEMORY_VGA); |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1449 | memory_region_transaction_begin(); |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 1450 | mr->dirty_log_mask = (mr->dirty_log_mask & ~mask) | (log * mask); |
Jan Kiszka | 22bde71 | 2012-11-05 16:45:56 +0100 | [diff] [blame] | 1451 | memory_region_update_pending |= mr->enabled; |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1452 | memory_region_transaction_commit(); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1453 | } |
| 1454 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1455 | bool memory_region_get_dirty(MemoryRegion *mr, hwaddr addr, |
| 1456 | hwaddr size, unsigned client) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1457 | { |
Paolo Bonzini | ec05ec2 | 2015-03-29 09:31:43 +0200 | [diff] [blame] | 1458 | assert(mr->ram_addr != RAM_ADDR_INVALID); |
Juan Quintela | 5215919 | 2013-10-08 12:44:04 +0200 | [diff] [blame] | 1459 | return cpu_physical_memory_get_dirty(mr->ram_addr + addr, size, client); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1460 | } |
| 1461 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1462 | void memory_region_set_dirty(MemoryRegion *mr, hwaddr addr, |
| 1463 | hwaddr size) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1464 | { |
Paolo Bonzini | ec05ec2 | 2015-03-29 09:31:43 +0200 | [diff] [blame] | 1465 | assert(mr->ram_addr != RAM_ADDR_INVALID); |
Paolo Bonzini | 58d2707 | 2015-03-23 11:56:01 +0100 | [diff] [blame] | 1466 | cpu_physical_memory_set_dirty_range(mr->ram_addr + addr, size, |
| 1467 | memory_region_get_dirty_log_mask(mr)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1468 | } |
| 1469 | |
Juan Quintela | 6c279db | 2012-10-17 20:24:28 +0200 | [diff] [blame] | 1470 | bool memory_region_test_and_clear_dirty(MemoryRegion *mr, hwaddr addr, |
| 1471 | hwaddr size, unsigned client) |
| 1472 | { |
Paolo Bonzini | ec05ec2 | 2015-03-29 09:31:43 +0200 | [diff] [blame] | 1473 | assert(mr->ram_addr != RAM_ADDR_INVALID); |
Stefan Hajnoczi | 03eebc9 | 2014-12-02 11:23:18 +0000 | [diff] [blame] | 1474 | return cpu_physical_memory_test_and_clear_dirty(mr->ram_addr + addr, |
| 1475 | size, client); |
Juan Quintela | 6c279db | 2012-10-17 20:24:28 +0200 | [diff] [blame] | 1476 | } |
| 1477 | |
| 1478 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1479 | void memory_region_sync_dirty_bitmap(MemoryRegion *mr) |
| 1480 | { |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 1481 | AddressSpace *as; |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 1482 | FlatRange *fr; |
| 1483 | |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 1484 | QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) { |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 1485 | FlatView *view = address_space_get_flatview(as); |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 1486 | FOR_EACH_FLAT_RANGE(fr, view) { |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 1487 | if (fr->mr == mr) { |
| 1488 | MEMORY_LISTENER_UPDATE_REGION(fr, as, Forward, log_sync); |
| 1489 | } |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 1490 | } |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 1491 | flatview_unref(view); |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 1492 | } |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1493 | } |
| 1494 | |
| 1495 | void memory_region_set_readonly(MemoryRegion *mr, bool readonly) |
| 1496 | { |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 1497 | if (mr->readonly != readonly) { |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1498 | memory_region_transaction_begin(); |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 1499 | mr->readonly = readonly; |
Jan Kiszka | 22bde71 | 2012-11-05 16:45:56 +0100 | [diff] [blame] | 1500 | memory_region_update_pending |= mr->enabled; |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1501 | memory_region_transaction_commit(); |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 1502 | } |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1503 | } |
| 1504 | |
Jan Kiszka | 5f9a5ea | 2013-05-07 19:04:25 +0200 | [diff] [blame] | 1505 | void memory_region_rom_device_set_romd(MemoryRegion *mr, bool romd_mode) |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 1506 | { |
Jan Kiszka | 5f9a5ea | 2013-05-07 19:04:25 +0200 | [diff] [blame] | 1507 | if (mr->romd_mode != romd_mode) { |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1508 | memory_region_transaction_begin(); |
Jan Kiszka | 5f9a5ea | 2013-05-07 19:04:25 +0200 | [diff] [blame] | 1509 | mr->romd_mode = romd_mode; |
Jan Kiszka | 22bde71 | 2012-11-05 16:45:56 +0100 | [diff] [blame] | 1510 | memory_region_update_pending |= mr->enabled; |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1511 | memory_region_transaction_commit(); |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 1512 | } |
| 1513 | } |
| 1514 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1515 | void memory_region_reset_dirty(MemoryRegion *mr, hwaddr addr, |
| 1516 | hwaddr size, unsigned client) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1517 | { |
Paolo Bonzini | ec05ec2 | 2015-03-29 09:31:43 +0200 | [diff] [blame] | 1518 | assert(mr->ram_addr != RAM_ADDR_INVALID); |
Stefan Hajnoczi | 03eebc9 | 2014-12-02 11:23:18 +0000 | [diff] [blame] | 1519 | cpu_physical_memory_test_and_clear_dirty(mr->ram_addr + addr, size, |
| 1520 | client); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1521 | } |
| 1522 | |
Paolo Bonzini | a35ba7b | 2014-06-10 19:15:23 +0800 | [diff] [blame] | 1523 | int memory_region_get_fd(MemoryRegion *mr) |
| 1524 | { |
| 1525 | if (mr->alias) { |
| 1526 | return memory_region_get_fd(mr->alias); |
| 1527 | } |
| 1528 | |
Paolo Bonzini | ec05ec2 | 2015-03-29 09:31:43 +0200 | [diff] [blame] | 1529 | assert(mr->ram_addr != RAM_ADDR_INVALID); |
Paolo Bonzini | a35ba7b | 2014-06-10 19:15:23 +0800 | [diff] [blame] | 1530 | |
| 1531 | return qemu_get_ram_fd(mr->ram_addr & TARGET_PAGE_MASK); |
| 1532 | } |
| 1533 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1534 | void *memory_region_get_ram_ptr(MemoryRegion *mr) |
| 1535 | { |
| 1536 | if (mr->alias) { |
| 1537 | return memory_region_get_ram_ptr(mr->alias) + mr->alias_offset; |
| 1538 | } |
| 1539 | |
Paolo Bonzini | ec05ec2 | 2015-03-29 09:31:43 +0200 | [diff] [blame] | 1540 | assert(mr->ram_addr != RAM_ADDR_INVALID); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1541 | |
Jan Kiszka | 021d26d | 2011-08-30 00:38:24 +0200 | [diff] [blame] | 1542 | return qemu_get_ram_ptr(mr->ram_addr & TARGET_PAGE_MASK); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1543 | } |
| 1544 | |
Paolo Bonzini | 37d7c08 | 2015-03-23 10:21:46 +0100 | [diff] [blame] | 1545 | void memory_region_ram_resize(MemoryRegion *mr, ram_addr_t newsize, Error **errp) |
| 1546 | { |
Paolo Bonzini | ec05ec2 | 2015-03-29 09:31:43 +0200 | [diff] [blame] | 1547 | assert(mr->ram_addr != RAM_ADDR_INVALID); |
Paolo Bonzini | 37d7c08 | 2015-03-23 10:21:46 +0100 | [diff] [blame] | 1548 | |
| 1549 | qemu_ram_resize(mr->ram_addr, newsize, errp); |
| 1550 | } |
| 1551 | |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 1552 | static void memory_region_update_coalesced_range_as(MemoryRegion *mr, AddressSpace *as) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1553 | { |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 1554 | FlatView *view; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1555 | FlatRange *fr; |
| 1556 | CoalescedMemoryRange *cmr; |
| 1557 | AddrRange tmp; |
Avi Kivity | 95d2994 | 2012-10-02 18:21:54 +0200 | [diff] [blame] | 1558 | MemoryRegionSection section; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1559 | |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 1560 | view = address_space_get_flatview(as); |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 1561 | FOR_EACH_FLAT_RANGE(fr, view) { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1562 | if (fr->mr == mr) { |
Avi Kivity | 95d2994 | 2012-10-02 18:21:54 +0200 | [diff] [blame] | 1563 | section = (MemoryRegionSection) { |
Avi Kivity | f6790af | 2012-10-02 20:13:51 +0200 | [diff] [blame] | 1564 | .address_space = as, |
Avi Kivity | 95d2994 | 2012-10-02 18:21:54 +0200 | [diff] [blame] | 1565 | .offset_within_address_space = int128_get64(fr->addr.start), |
Paolo Bonzini | 052e87b | 2013-05-27 10:08:27 +0200 | [diff] [blame] | 1566 | .size = fr->addr.size, |
Avi Kivity | 95d2994 | 2012-10-02 18:21:54 +0200 | [diff] [blame] | 1567 | }; |
| 1568 | |
| 1569 | MEMORY_LISTENER_CALL(coalesced_mmio_del, Reverse, §ion, |
| 1570 | int128_get64(fr->addr.start), |
| 1571 | int128_get64(fr->addr.size)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1572 | QTAILQ_FOREACH(cmr, &mr->coalesced, link) { |
| 1573 | tmp = addrrange_shift(cmr->addr, |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1574 | int128_sub(fr->addr.start, |
| 1575 | int128_make64(fr->offset_in_region))); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1576 | if (!addrrange_intersects(tmp, fr->addr)) { |
| 1577 | continue; |
| 1578 | } |
| 1579 | tmp = addrrange_intersection(tmp, fr->addr); |
Avi Kivity | 95d2994 | 2012-10-02 18:21:54 +0200 | [diff] [blame] | 1580 | MEMORY_LISTENER_CALL(coalesced_mmio_add, Forward, §ion, |
| 1581 | int128_get64(tmp.start), |
| 1582 | int128_get64(tmp.size)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1583 | } |
| 1584 | } |
| 1585 | } |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 1586 | flatview_unref(view); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1587 | } |
| 1588 | |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 1589 | static void memory_region_update_coalesced_range(MemoryRegion *mr) |
| 1590 | { |
| 1591 | AddressSpace *as; |
| 1592 | |
| 1593 | QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) { |
| 1594 | memory_region_update_coalesced_range_as(mr, as); |
| 1595 | } |
| 1596 | } |
| 1597 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1598 | void memory_region_set_coalescing(MemoryRegion *mr) |
| 1599 | { |
| 1600 | memory_region_clear_coalescing(mr); |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1601 | memory_region_add_coalescing(mr, 0, int128_get64(mr->size)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1602 | } |
| 1603 | |
| 1604 | void memory_region_add_coalescing(MemoryRegion *mr, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1605 | hwaddr offset, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1606 | uint64_t size) |
| 1607 | { |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1608 | CoalescedMemoryRange *cmr = g_malloc(sizeof(*cmr)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1609 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1610 | cmr->addr = addrrange_make(int128_make64(offset), int128_make64(size)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1611 | QTAILQ_INSERT_TAIL(&mr->coalesced, cmr, link); |
| 1612 | memory_region_update_coalesced_range(mr); |
Jan Kiszka | d410515 | 2012-08-23 13:02:29 +0200 | [diff] [blame] | 1613 | memory_region_set_flush_coalesced(mr); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1614 | } |
| 1615 | |
| 1616 | void memory_region_clear_coalescing(MemoryRegion *mr) |
| 1617 | { |
| 1618 | CoalescedMemoryRange *cmr; |
Fam Zheng | ab5b3db | 2014-06-13 14:34:41 +0800 | [diff] [blame] | 1619 | bool updated = false; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1620 | |
Jan Kiszka | d410515 | 2012-08-23 13:02:29 +0200 | [diff] [blame] | 1621 | qemu_flush_coalesced_mmio_buffer(); |
| 1622 | mr->flush_coalesced_mmio = false; |
| 1623 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1624 | while (!QTAILQ_EMPTY(&mr->coalesced)) { |
| 1625 | cmr = QTAILQ_FIRST(&mr->coalesced); |
| 1626 | QTAILQ_REMOVE(&mr->coalesced, cmr, link); |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1627 | g_free(cmr); |
Fam Zheng | ab5b3db | 2014-06-13 14:34:41 +0800 | [diff] [blame] | 1628 | updated = true; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1629 | } |
Fam Zheng | ab5b3db | 2014-06-13 14:34:41 +0800 | [diff] [blame] | 1630 | |
| 1631 | if (updated) { |
| 1632 | memory_region_update_coalesced_range(mr); |
| 1633 | } |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1634 | } |
| 1635 | |
Jan Kiszka | d410515 | 2012-08-23 13:02:29 +0200 | [diff] [blame] | 1636 | void memory_region_set_flush_coalesced(MemoryRegion *mr) |
| 1637 | { |
| 1638 | mr->flush_coalesced_mmio = true; |
| 1639 | } |
| 1640 | |
| 1641 | void memory_region_clear_flush_coalesced(MemoryRegion *mr) |
| 1642 | { |
| 1643 | qemu_flush_coalesced_mmio_buffer(); |
| 1644 | if (QTAILQ_EMPTY(&mr->coalesced)) { |
| 1645 | mr->flush_coalesced_mmio = false; |
| 1646 | } |
| 1647 | } |
| 1648 | |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1649 | void memory_region_add_eventfd(MemoryRegion *mr, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1650 | hwaddr addr, |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1651 | unsigned size, |
| 1652 | bool match_data, |
| 1653 | uint64_t data, |
Paolo Bonzini | 753d5e1 | 2012-07-05 17:16:27 +0200 | [diff] [blame] | 1654 | EventNotifier *e) |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1655 | { |
| 1656 | MemoryRegionIoeventfd mrfd = { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1657 | .addr.start = int128_make64(addr), |
| 1658 | .addr.size = int128_make64(size), |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1659 | .match_data = match_data, |
| 1660 | .data = data, |
Paolo Bonzini | 753d5e1 | 2012-07-05 17:16:27 +0200 | [diff] [blame] | 1661 | .e = e, |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1662 | }; |
| 1663 | unsigned i; |
| 1664 | |
Alexander Graf | 28f362b | 2012-10-15 20:30:28 +0200 | [diff] [blame] | 1665 | adjust_endianness(mr, &mrfd.data, size); |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1666 | memory_region_transaction_begin(); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1667 | for (i = 0; i < mr->ioeventfd_nb; ++i) { |
| 1668 | if (memory_region_ioeventfd_before(mrfd, mr->ioeventfds[i])) { |
| 1669 | break; |
| 1670 | } |
| 1671 | } |
| 1672 | ++mr->ioeventfd_nb; |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1673 | mr->ioeventfds = g_realloc(mr->ioeventfds, |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1674 | sizeof(*mr->ioeventfds) * mr->ioeventfd_nb); |
| 1675 | memmove(&mr->ioeventfds[i+1], &mr->ioeventfds[i], |
| 1676 | sizeof(*mr->ioeventfds) * (mr->ioeventfd_nb-1 - i)); |
| 1677 | mr->ioeventfds[i] = mrfd; |
Gonglei | 4dc5615 | 2014-05-08 11:47:32 +0800 | [diff] [blame] | 1678 | ioeventfd_update_pending |= mr->enabled; |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1679 | memory_region_transaction_commit(); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1680 | } |
| 1681 | |
| 1682 | void memory_region_del_eventfd(MemoryRegion *mr, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1683 | hwaddr addr, |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1684 | unsigned size, |
| 1685 | bool match_data, |
| 1686 | uint64_t data, |
Paolo Bonzini | 753d5e1 | 2012-07-05 17:16:27 +0200 | [diff] [blame] | 1687 | EventNotifier *e) |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1688 | { |
| 1689 | MemoryRegionIoeventfd mrfd = { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1690 | .addr.start = int128_make64(addr), |
| 1691 | .addr.size = int128_make64(size), |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1692 | .match_data = match_data, |
| 1693 | .data = data, |
Paolo Bonzini | 753d5e1 | 2012-07-05 17:16:27 +0200 | [diff] [blame] | 1694 | .e = e, |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1695 | }; |
| 1696 | unsigned i; |
| 1697 | |
Alexander Graf | 28f362b | 2012-10-15 20:30:28 +0200 | [diff] [blame] | 1698 | adjust_endianness(mr, &mrfd.data, size); |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1699 | memory_region_transaction_begin(); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1700 | for (i = 0; i < mr->ioeventfd_nb; ++i) { |
| 1701 | if (memory_region_ioeventfd_equal(mrfd, mr->ioeventfds[i])) { |
| 1702 | break; |
| 1703 | } |
| 1704 | } |
| 1705 | assert(i != mr->ioeventfd_nb); |
| 1706 | memmove(&mr->ioeventfds[i], &mr->ioeventfds[i+1], |
| 1707 | sizeof(*mr->ioeventfds) * (mr->ioeventfd_nb - (i+1))); |
| 1708 | --mr->ioeventfd_nb; |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1709 | mr->ioeventfds = g_realloc(mr->ioeventfds, |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1710 | sizeof(*mr->ioeventfds)*mr->ioeventfd_nb + 1); |
Gonglei | 4dc5615 | 2014-05-08 11:47:32 +0800 | [diff] [blame] | 1711 | ioeventfd_update_pending |= mr->enabled; |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1712 | memory_region_transaction_commit(); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1713 | } |
| 1714 | |
Paolo Bonzini | feca4ac | 2014-06-11 11:18:09 +0200 | [diff] [blame] | 1715 | static void memory_region_update_container_subregions(MemoryRegion *subregion) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1716 | { |
Peter Crosthwaite | 0598701 | 2014-06-05 23:14:44 -0700 | [diff] [blame] | 1717 | hwaddr offset = subregion->addr; |
Paolo Bonzini | feca4ac | 2014-06-11 11:18:09 +0200 | [diff] [blame] | 1718 | MemoryRegion *mr = subregion->container; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1719 | MemoryRegion *other; |
| 1720 | |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1721 | memory_region_transaction_begin(); |
| 1722 | |
Paolo Bonzini | dfde4e6 | 2013-05-06 10:46:11 +0200 | [diff] [blame] | 1723 | memory_region_ref(subregion); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1724 | QTAILQ_FOREACH(other, &mr->subregions, subregions_link) { |
| 1725 | if (subregion->may_overlap || other->may_overlap) { |
| 1726 | continue; |
| 1727 | } |
Hu Tao | 2c7cfd6 | 2013-03-15 14:32:01 +0800 | [diff] [blame] | 1728 | if (int128_ge(int128_make64(offset), |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1729 | int128_add(int128_make64(other->addr), other->size)) |
| 1730 | || int128_le(int128_add(int128_make64(offset), subregion->size), |
| 1731 | int128_make64(other->addr))) { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1732 | continue; |
| 1733 | } |
Anthony Liguori | a5e1cbc | 2011-08-22 11:14:56 -0500 | [diff] [blame] | 1734 | #if 0 |
Michael Walle | 860329b | 2011-09-15 23:16:49 +0200 | [diff] [blame] | 1735 | printf("warning: subregion collision %llx/%llx (%s) " |
| 1736 | "vs %llx/%llx (%s)\n", |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1737 | (unsigned long long)offset, |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1738 | (unsigned long long)int128_get64(subregion->size), |
Michael Walle | 860329b | 2011-09-15 23:16:49 +0200 | [diff] [blame] | 1739 | subregion->name, |
| 1740 | (unsigned long long)other->addr, |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1741 | (unsigned long long)int128_get64(other->size), |
Michael Walle | 860329b | 2011-09-15 23:16:49 +0200 | [diff] [blame] | 1742 | other->name); |
Anthony Liguori | a5e1cbc | 2011-08-22 11:14:56 -0500 | [diff] [blame] | 1743 | #endif |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1744 | } |
| 1745 | QTAILQ_FOREACH(other, &mr->subregions, subregions_link) { |
| 1746 | if (subregion->priority >= other->priority) { |
| 1747 | QTAILQ_INSERT_BEFORE(other, subregion, subregions_link); |
| 1748 | goto done; |
| 1749 | } |
| 1750 | } |
| 1751 | QTAILQ_INSERT_TAIL(&mr->subregions, subregion, subregions_link); |
| 1752 | done: |
Jan Kiszka | 22bde71 | 2012-11-05 16:45:56 +0100 | [diff] [blame] | 1753 | memory_region_update_pending |= mr->enabled && subregion->enabled; |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1754 | memory_region_transaction_commit(); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1755 | } |
| 1756 | |
Peter Crosthwaite | 0598701 | 2014-06-05 23:14:44 -0700 | [diff] [blame] | 1757 | static void memory_region_add_subregion_common(MemoryRegion *mr, |
| 1758 | hwaddr offset, |
| 1759 | MemoryRegion *subregion) |
| 1760 | { |
Paolo Bonzini | feca4ac | 2014-06-11 11:18:09 +0200 | [diff] [blame] | 1761 | assert(!subregion->container); |
| 1762 | subregion->container = mr; |
Peter Crosthwaite | 0598701 | 2014-06-05 23:14:44 -0700 | [diff] [blame] | 1763 | subregion->addr = offset; |
Paolo Bonzini | feca4ac | 2014-06-11 11:18:09 +0200 | [diff] [blame] | 1764 | memory_region_update_container_subregions(subregion); |
Peter Crosthwaite | 0598701 | 2014-06-05 23:14:44 -0700 | [diff] [blame] | 1765 | } |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1766 | |
| 1767 | void memory_region_add_subregion(MemoryRegion *mr, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1768 | hwaddr offset, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1769 | MemoryRegion *subregion) |
| 1770 | { |
| 1771 | subregion->may_overlap = false; |
| 1772 | subregion->priority = 0; |
| 1773 | memory_region_add_subregion_common(mr, offset, subregion); |
| 1774 | } |
| 1775 | |
| 1776 | void memory_region_add_subregion_overlap(MemoryRegion *mr, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1777 | hwaddr offset, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1778 | MemoryRegion *subregion, |
Marcel Apfelbaum | a1ff8ae | 2013-09-16 11:21:14 +0300 | [diff] [blame] | 1779 | int priority) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1780 | { |
| 1781 | subregion->may_overlap = true; |
| 1782 | subregion->priority = priority; |
| 1783 | memory_region_add_subregion_common(mr, offset, subregion); |
| 1784 | } |
| 1785 | |
| 1786 | void memory_region_del_subregion(MemoryRegion *mr, |
| 1787 | MemoryRegion *subregion) |
| 1788 | { |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1789 | memory_region_transaction_begin(); |
Paolo Bonzini | feca4ac | 2014-06-11 11:18:09 +0200 | [diff] [blame] | 1790 | assert(subregion->container == mr); |
| 1791 | subregion->container = NULL; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1792 | QTAILQ_REMOVE(&mr->subregions, subregion, subregions_link); |
Paolo Bonzini | dfde4e6 | 2013-05-06 10:46:11 +0200 | [diff] [blame] | 1793 | memory_region_unref(subregion); |
Jan Kiszka | 22bde71 | 2012-11-05 16:45:56 +0100 | [diff] [blame] | 1794 | memory_region_update_pending |= mr->enabled && subregion->enabled; |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1795 | memory_region_transaction_commit(); |
Avi Kivity | 6bba19b | 2011-09-14 11:54:58 +0300 | [diff] [blame] | 1796 | } |
| 1797 | |
| 1798 | void memory_region_set_enabled(MemoryRegion *mr, bool enabled) |
| 1799 | { |
| 1800 | if (enabled == mr->enabled) { |
| 1801 | return; |
| 1802 | } |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1803 | memory_region_transaction_begin(); |
Avi Kivity | 6bba19b | 2011-09-14 11:54:58 +0300 | [diff] [blame] | 1804 | mr->enabled = enabled; |
Jan Kiszka | 22bde71 | 2012-11-05 16:45:56 +0100 | [diff] [blame] | 1805 | memory_region_update_pending = true; |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1806 | memory_region_transaction_commit(); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1807 | } |
Avi Kivity | 1c0ffa5 | 2011-07-26 14:26:04 +0300 | [diff] [blame] | 1808 | |
Michael S. Tsirkin | e7af4c6 | 2014-12-16 11:21:23 +0200 | [diff] [blame] | 1809 | void memory_region_set_size(MemoryRegion *mr, uint64_t size) |
| 1810 | { |
| 1811 | Int128 s = int128_make64(size); |
| 1812 | |
| 1813 | if (size == UINT64_MAX) { |
| 1814 | s = int128_2_64(); |
| 1815 | } |
| 1816 | if (int128_eq(s, mr->size)) { |
| 1817 | return; |
| 1818 | } |
| 1819 | memory_region_transaction_begin(); |
| 1820 | mr->size = s; |
| 1821 | memory_region_update_pending = true; |
| 1822 | memory_region_transaction_commit(); |
| 1823 | } |
| 1824 | |
Peter Crosthwaite | 67891b8 | 2014-06-05 23:15:18 -0700 | [diff] [blame] | 1825 | static void memory_region_readd_subregion(MemoryRegion *mr) |
Avi Kivity | 2282e1a | 2011-09-14 12:10:12 +0300 | [diff] [blame] | 1826 | { |
Paolo Bonzini | feca4ac | 2014-06-11 11:18:09 +0200 | [diff] [blame] | 1827 | MemoryRegion *container = mr->container; |
Avi Kivity | 2282e1a | 2011-09-14 12:10:12 +0300 | [diff] [blame] | 1828 | |
Paolo Bonzini | feca4ac | 2014-06-11 11:18:09 +0200 | [diff] [blame] | 1829 | if (container) { |
Peter Crosthwaite | 67891b8 | 2014-06-05 23:15:18 -0700 | [diff] [blame] | 1830 | memory_region_transaction_begin(); |
| 1831 | memory_region_ref(mr); |
Paolo Bonzini | feca4ac | 2014-06-11 11:18:09 +0200 | [diff] [blame] | 1832 | memory_region_del_subregion(container, mr); |
| 1833 | mr->container = container; |
| 1834 | memory_region_update_container_subregions(mr); |
Peter Crosthwaite | 67891b8 | 2014-06-05 23:15:18 -0700 | [diff] [blame] | 1835 | memory_region_unref(mr); |
| 1836 | memory_region_transaction_commit(); |
Avi Kivity | 2282e1a | 2011-09-14 12:10:12 +0300 | [diff] [blame] | 1837 | } |
Peter Crosthwaite | 67891b8 | 2014-06-05 23:15:18 -0700 | [diff] [blame] | 1838 | } |
Avi Kivity | 2282e1a | 2011-09-14 12:10:12 +0300 | [diff] [blame] | 1839 | |
Peter Crosthwaite | 67891b8 | 2014-06-05 23:15:18 -0700 | [diff] [blame] | 1840 | void memory_region_set_address(MemoryRegion *mr, hwaddr addr) |
| 1841 | { |
| 1842 | if (addr != mr->addr) { |
| 1843 | mr->addr = addr; |
| 1844 | memory_region_readd_subregion(mr); |
| 1845 | } |
Avi Kivity | 2282e1a | 2011-09-14 12:10:12 +0300 | [diff] [blame] | 1846 | } |
| 1847 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1848 | void memory_region_set_alias_offset(MemoryRegion *mr, hwaddr offset) |
Avi Kivity | 4703359 | 2011-12-04 19:16:50 +0200 | [diff] [blame] | 1849 | { |
Avi Kivity | 4703359 | 2011-12-04 19:16:50 +0200 | [diff] [blame] | 1850 | assert(mr->alias); |
Avi Kivity | 4703359 | 2011-12-04 19:16:50 +0200 | [diff] [blame] | 1851 | |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1852 | if (offset == mr->alias_offset) { |
Avi Kivity | 4703359 | 2011-12-04 19:16:50 +0200 | [diff] [blame] | 1853 | return; |
| 1854 | } |
| 1855 | |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1856 | memory_region_transaction_begin(); |
| 1857 | mr->alias_offset = offset; |
Jan Kiszka | 22bde71 | 2012-11-05 16:45:56 +0100 | [diff] [blame] | 1858 | memory_region_update_pending |= mr->enabled; |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 1859 | memory_region_transaction_commit(); |
Avi Kivity | 4703359 | 2011-12-04 19:16:50 +0200 | [diff] [blame] | 1860 | } |
| 1861 | |
Avi Kivity | e34911c | 2011-12-19 12:06:23 +0200 | [diff] [blame] | 1862 | ram_addr_t memory_region_get_ram_addr(MemoryRegion *mr) |
| 1863 | { |
Avi Kivity | e34911c | 2011-12-19 12:06:23 +0200 | [diff] [blame] | 1864 | return mr->ram_addr; |
| 1865 | } |
| 1866 | |
Igor Mammedov | a2b257d | 2014-10-31 16:38:37 +0000 | [diff] [blame] | 1867 | uint64_t memory_region_get_alignment(const MemoryRegion *mr) |
| 1868 | { |
| 1869 | return mr->align; |
| 1870 | } |
| 1871 | |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 1872 | static int cmp_flatrange_addr(const void *addr_, const void *fr_) |
| 1873 | { |
| 1874 | const AddrRange *addr = addr_; |
| 1875 | const FlatRange *fr = fr_; |
| 1876 | |
| 1877 | if (int128_le(addrrange_end(*addr), fr->addr.start)) { |
| 1878 | return -1; |
| 1879 | } else if (int128_ge(addr->start, addrrange_end(fr->addr))) { |
| 1880 | return 1; |
| 1881 | } |
| 1882 | return 0; |
| 1883 | } |
| 1884 | |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 1885 | static FlatRange *flatview_lookup(FlatView *view, AddrRange addr) |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 1886 | { |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 1887 | return bsearch(&addr, view->ranges, view->nr, |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 1888 | sizeof(FlatRange), cmp_flatrange_addr); |
| 1889 | } |
| 1890 | |
Paolo Bonzini | feca4ac | 2014-06-11 11:18:09 +0200 | [diff] [blame] | 1891 | bool memory_region_present(MemoryRegion *container, hwaddr addr) |
Paolo Bonzini | 3ce1090 | 2013-07-02 13:40:48 +0200 | [diff] [blame] | 1892 | { |
Paolo Bonzini | feca4ac | 2014-06-11 11:18:09 +0200 | [diff] [blame] | 1893 | MemoryRegion *mr = memory_region_find(container, addr, 1).mr; |
| 1894 | if (!mr || (mr == container)) { |
Paolo Bonzini | 3ce1090 | 2013-07-02 13:40:48 +0200 | [diff] [blame] | 1895 | return false; |
| 1896 | } |
Paolo Bonzini | dfde4e6 | 2013-05-06 10:46:11 +0200 | [diff] [blame] | 1897 | memory_region_unref(mr); |
Paolo Bonzini | 3ce1090 | 2013-07-02 13:40:48 +0200 | [diff] [blame] | 1898 | return true; |
| 1899 | } |
| 1900 | |
Igor Mammedov | eed2bac | 2014-06-02 15:25:06 +0200 | [diff] [blame] | 1901 | bool memory_region_is_mapped(MemoryRegion *mr) |
| 1902 | { |
| 1903 | return mr->container ? true : false; |
| 1904 | } |
| 1905 | |
Paolo Bonzini | 73034e9 | 2013-05-07 15:48:28 +0200 | [diff] [blame] | 1906 | MemoryRegionSection memory_region_find(MemoryRegion *mr, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1907 | hwaddr addr, uint64_t size) |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 1908 | { |
Paolo Bonzini | 052e87b | 2013-05-27 10:08:27 +0200 | [diff] [blame] | 1909 | MemoryRegionSection ret = { .mr = NULL }; |
Paolo Bonzini | 73034e9 | 2013-05-07 15:48:28 +0200 | [diff] [blame] | 1910 | MemoryRegion *root; |
| 1911 | AddressSpace *as; |
| 1912 | AddrRange range; |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 1913 | FlatView *view; |
Paolo Bonzini | 73034e9 | 2013-05-07 15:48:28 +0200 | [diff] [blame] | 1914 | FlatRange *fr; |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 1915 | |
Paolo Bonzini | 73034e9 | 2013-05-07 15:48:28 +0200 | [diff] [blame] | 1916 | addr += mr->addr; |
Paolo Bonzini | feca4ac | 2014-06-11 11:18:09 +0200 | [diff] [blame] | 1917 | for (root = mr; root->container; ) { |
| 1918 | root = root->container; |
Paolo Bonzini | 73034e9 | 2013-05-07 15:48:28 +0200 | [diff] [blame] | 1919 | addr += root->addr; |
| 1920 | } |
| 1921 | |
| 1922 | as = memory_region_to_address_space(root); |
Igor Mammedov | eed2bac | 2014-06-02 15:25:06 +0200 | [diff] [blame] | 1923 | if (!as) { |
| 1924 | return ret; |
| 1925 | } |
Paolo Bonzini | 73034e9 | 2013-05-07 15:48:28 +0200 | [diff] [blame] | 1926 | range = addrrange_make(int128_make64(addr), int128_make64(size)); |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 1927 | |
Paolo Bonzini | 2b64766 | 2013-05-17 12:40:44 +0200 | [diff] [blame] | 1928 | rcu_read_lock(); |
| 1929 | view = atomic_rcu_read(&as->current_map); |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 1930 | fr = flatview_lookup(view, range); |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 1931 | if (!fr) { |
Paolo Bonzini | 2b64766 | 2013-05-17 12:40:44 +0200 | [diff] [blame] | 1932 | goto out; |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 1933 | } |
| 1934 | |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 1935 | while (fr > view->ranges && addrrange_intersects(fr[-1].addr, range)) { |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 1936 | --fr; |
| 1937 | } |
| 1938 | |
| 1939 | ret.mr = fr->mr; |
Paolo Bonzini | 73034e9 | 2013-05-07 15:48:28 +0200 | [diff] [blame] | 1940 | ret.address_space = as; |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 1941 | range = addrrange_intersection(range, fr->addr); |
| 1942 | ret.offset_within_region = fr->offset_in_region; |
| 1943 | ret.offset_within_region += int128_get64(int128_sub(range.start, |
| 1944 | fr->addr.start)); |
Paolo Bonzini | 052e87b | 2013-05-27 10:08:27 +0200 | [diff] [blame] | 1945 | ret.size = range.size; |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 1946 | ret.offset_within_address_space = int128_get64(range.start); |
Avi Kivity | 7a8499e | 2012-02-08 17:01:23 +0200 | [diff] [blame] | 1947 | ret.readonly = fr->readonly; |
Paolo Bonzini | dfde4e6 | 2013-05-06 10:46:11 +0200 | [diff] [blame] | 1948 | memory_region_ref(ret.mr); |
Paolo Bonzini | 2b64766 | 2013-05-17 12:40:44 +0200 | [diff] [blame] | 1949 | out: |
| 1950 | rcu_read_unlock(); |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 1951 | return ret; |
| 1952 | } |
| 1953 | |
Paolo Bonzini | 1d67136 | 2013-04-24 10:46:55 +0200 | [diff] [blame] | 1954 | void address_space_sync_dirty_bitmap(AddressSpace *as) |
Avi Kivity | 86e775c | 2011-12-15 16:24:49 +0200 | [diff] [blame] | 1955 | { |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 1956 | FlatView *view; |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 1957 | FlatRange *fr; |
| 1958 | |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 1959 | view = address_space_get_flatview(as); |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 1960 | FOR_EACH_FLAT_RANGE(fr, view) { |
Avi Kivity | 72e22d2 | 2012-02-08 15:05:50 +0200 | [diff] [blame] | 1961 | MEMORY_LISTENER_UPDATE_REGION(fr, as, Forward, log_sync); |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 1962 | } |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 1963 | flatview_unref(view); |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 1964 | } |
| 1965 | |
| 1966 | void memory_global_dirty_log_start(void) |
| 1967 | { |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 1968 | global_dirty_log = true; |
Paolo Bonzini | 6f6a5ef | 2015-03-23 10:57:21 +0100 | [diff] [blame] | 1969 | |
Avi Kivity | 7376e58 | 2012-02-08 21:05:17 +0200 | [diff] [blame] | 1970 | MEMORY_LISTENER_CALL_GLOBAL(log_global_start, Forward); |
Paolo Bonzini | 6f6a5ef | 2015-03-23 10:57:21 +0100 | [diff] [blame] | 1971 | |
| 1972 | /* Refresh DIRTY_LOG_MIGRATION bit. */ |
| 1973 | memory_region_transaction_begin(); |
| 1974 | memory_region_update_pending = true; |
| 1975 | memory_region_transaction_commit(); |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 1976 | } |
| 1977 | |
| 1978 | void memory_global_dirty_log_stop(void) |
| 1979 | { |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 1980 | global_dirty_log = false; |
Paolo Bonzini | 6f6a5ef | 2015-03-23 10:57:21 +0100 | [diff] [blame] | 1981 | |
| 1982 | /* Refresh DIRTY_LOG_MIGRATION bit. */ |
| 1983 | memory_region_transaction_begin(); |
| 1984 | memory_region_update_pending = true; |
| 1985 | memory_region_transaction_commit(); |
| 1986 | |
Avi Kivity | 7376e58 | 2012-02-08 21:05:17 +0200 | [diff] [blame] | 1987 | MEMORY_LISTENER_CALL_GLOBAL(log_global_stop, Reverse); |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 1988 | } |
| 1989 | |
| 1990 | static void listener_add_address_space(MemoryListener *listener, |
| 1991 | AddressSpace *as) |
| 1992 | { |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 1993 | FlatView *view; |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 1994 | FlatRange *fr; |
| 1995 | |
Julien Grall | 221b3a3 | 2012-04-04 15:15:41 +0100 | [diff] [blame] | 1996 | if (listener->address_space_filter |
Avi Kivity | f6790af | 2012-10-02 20:13:51 +0200 | [diff] [blame] | 1997 | && listener->address_space_filter != as) { |
Julien Grall | 221b3a3 | 2012-04-04 15:15:41 +0100 | [diff] [blame] | 1998 | return; |
| 1999 | } |
| 2000 | |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 2001 | if (global_dirty_log) { |
Avi Kivity | 975aefe | 2012-10-02 16:39:57 +0200 | [diff] [blame] | 2002 | if (listener->log_global_start) { |
| 2003 | listener->log_global_start(listener); |
| 2004 | } |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 2005 | } |
Avi Kivity | 975aefe | 2012-10-02 16:39:57 +0200 | [diff] [blame] | 2006 | |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 2007 | view = address_space_get_flatview(as); |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 2008 | FOR_EACH_FLAT_RANGE(fr, view) { |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 2009 | MemoryRegionSection section = { |
| 2010 | .mr = fr->mr, |
Avi Kivity | f6790af | 2012-10-02 20:13:51 +0200 | [diff] [blame] | 2011 | .address_space = as, |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 2012 | .offset_within_region = fr->offset_in_region, |
Paolo Bonzini | 052e87b | 2013-05-27 10:08:27 +0200 | [diff] [blame] | 2013 | .size = fr->addr.size, |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 2014 | .offset_within_address_space = int128_get64(fr->addr.start), |
Avi Kivity | 7a8499e | 2012-02-08 17:01:23 +0200 | [diff] [blame] | 2015 | .readonly = fr->readonly, |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 2016 | }; |
Avi Kivity | 975aefe | 2012-10-02 16:39:57 +0200 | [diff] [blame] | 2017 | if (listener->region_add) { |
| 2018 | listener->region_add(listener, §ion); |
| 2019 | } |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 2020 | } |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 2021 | flatview_unref(view); |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 2022 | } |
| 2023 | |
Avi Kivity | f6790af | 2012-10-02 20:13:51 +0200 | [diff] [blame] | 2024 | void memory_listener_register(MemoryListener *listener, AddressSpace *filter) |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 2025 | { |
Avi Kivity | 72e22d2 | 2012-02-08 15:05:50 +0200 | [diff] [blame] | 2026 | MemoryListener *other = NULL; |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 2027 | AddressSpace *as; |
Avi Kivity | 72e22d2 | 2012-02-08 15:05:50 +0200 | [diff] [blame] | 2028 | |
Avi Kivity | 7376e58 | 2012-02-08 21:05:17 +0200 | [diff] [blame] | 2029 | listener->address_space_filter = filter; |
Avi Kivity | 72e22d2 | 2012-02-08 15:05:50 +0200 | [diff] [blame] | 2030 | if (QTAILQ_EMPTY(&memory_listeners) |
| 2031 | || listener->priority >= QTAILQ_LAST(&memory_listeners, |
| 2032 | memory_listeners)->priority) { |
| 2033 | QTAILQ_INSERT_TAIL(&memory_listeners, listener, link); |
| 2034 | } else { |
| 2035 | QTAILQ_FOREACH(other, &memory_listeners, link) { |
| 2036 | if (listener->priority < other->priority) { |
| 2037 | break; |
| 2038 | } |
| 2039 | } |
| 2040 | QTAILQ_INSERT_BEFORE(other, listener, link); |
| 2041 | } |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 2042 | |
| 2043 | QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) { |
| 2044 | listener_add_address_space(listener, as); |
| 2045 | } |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 2046 | } |
| 2047 | |
| 2048 | void memory_listener_unregister(MemoryListener *listener) |
| 2049 | { |
Avi Kivity | 72e22d2 | 2012-02-08 15:05:50 +0200 | [diff] [blame] | 2050 | QTAILQ_REMOVE(&memory_listeners, listener, link); |
Avi Kivity | 86e775c | 2011-12-15 16:24:49 +0200 | [diff] [blame] | 2051 | } |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 2052 | |
Alexey Kardashevskiy | 7dca804 | 2013-04-29 16:25:51 +0000 | [diff] [blame] | 2053 | void address_space_init(AddressSpace *as, MemoryRegion *root, const char *name) |
Avi Kivity | 1c0ffa5 | 2011-07-26 14:26:04 +0300 | [diff] [blame] | 2054 | { |
Paolo Bonzini | ac95190 | 2015-02-11 15:21:04 +0100 | [diff] [blame] | 2055 | memory_region_ref(root); |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 2056 | memory_region_transaction_begin(); |
Avi Kivity | 8786db7 | 2012-10-02 13:53:41 +0200 | [diff] [blame] | 2057 | as->root = root; |
| 2058 | as->current_map = g_new(FlatView, 1); |
| 2059 | flatview_init(as->current_map); |
Avi Kivity | 4c19eb7 | 2012-10-30 13:47:44 +0200 | [diff] [blame] | 2060 | as->ioeventfd_nb = 0; |
| 2061 | as->ioeventfds = NULL; |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 2062 | QTAILQ_INSERT_TAIL(&address_spaces, as, address_spaces_link); |
Alexey Kardashevskiy | 7dca804 | 2013-04-29 16:25:51 +0000 | [diff] [blame] | 2063 | as->name = g_strdup(name ? name : "anonymous"); |
Avi Kivity | ac1970f | 2012-10-03 16:22:53 +0200 | [diff] [blame] | 2064 | address_space_init_dispatch(as); |
Paolo Bonzini | f43793c | 2013-04-16 15:39:51 +0200 | [diff] [blame] | 2065 | memory_region_update_pending |= root->enabled; |
| 2066 | memory_region_transaction_commit(); |
Avi Kivity | 1c0ffa5 | 2011-07-26 14:26:04 +0300 | [diff] [blame] | 2067 | } |
Avi Kivity | 658b222 | 2011-07-26 14:26:08 +0300 | [diff] [blame] | 2068 | |
Paolo Bonzini | 374f298 | 2013-05-17 12:37:03 +0200 | [diff] [blame] | 2069 | static void do_address_space_destroy(AddressSpace *as) |
Avi Kivity | 83f3c25 | 2012-10-07 12:59:55 +0200 | [diff] [blame] | 2070 | { |
David Gibson | 078c44f | 2014-05-30 12:59:00 -0600 | [diff] [blame] | 2071 | MemoryListener *listener; |
| 2072 | |
Avi Kivity | 83f3c25 | 2012-10-07 12:59:55 +0200 | [diff] [blame] | 2073 | address_space_destroy_dispatch(as); |
David Gibson | 078c44f | 2014-05-30 12:59:00 -0600 | [diff] [blame] | 2074 | |
| 2075 | QTAILQ_FOREACH(listener, &memory_listeners, link) { |
| 2076 | assert(listener->address_space_filter != as); |
| 2077 | } |
| 2078 | |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 2079 | flatview_unref(as->current_map); |
Alexey Kardashevskiy | 7dca804 | 2013-04-29 16:25:51 +0000 | [diff] [blame] | 2080 | g_free(as->name); |
Avi Kivity | 4c19eb7 | 2012-10-30 13:47:44 +0200 | [diff] [blame] | 2081 | g_free(as->ioeventfds); |
Paolo Bonzini | ac95190 | 2015-02-11 15:21:04 +0100 | [diff] [blame] | 2082 | memory_region_unref(as->root); |
Avi Kivity | 83f3c25 | 2012-10-07 12:59:55 +0200 | [diff] [blame] | 2083 | } |
| 2084 | |
Paolo Bonzini | 374f298 | 2013-05-17 12:37:03 +0200 | [diff] [blame] | 2085 | void address_space_destroy(AddressSpace *as) |
| 2086 | { |
Paolo Bonzini | ac95190 | 2015-02-11 15:21:04 +0100 | [diff] [blame] | 2087 | MemoryRegion *root = as->root; |
| 2088 | |
Paolo Bonzini | 374f298 | 2013-05-17 12:37:03 +0200 | [diff] [blame] | 2089 | /* Flush out anything from MemoryListeners listening in on this */ |
| 2090 | memory_region_transaction_begin(); |
| 2091 | as->root = NULL; |
| 2092 | memory_region_transaction_commit(); |
| 2093 | QTAILQ_REMOVE(&address_spaces, as, address_spaces_link); |
Paolo Bonzini | 6e48e8f | 2015-02-10 10:25:44 -0700 | [diff] [blame] | 2094 | address_space_unregister(as); |
Paolo Bonzini | 374f298 | 2013-05-17 12:37:03 +0200 | [diff] [blame] | 2095 | |
| 2096 | /* At this point, as->dispatch and as->current_map are dummy |
| 2097 | * entries that the guest should never use. Wait for the old |
| 2098 | * values to expire before freeing the data. |
| 2099 | */ |
Paolo Bonzini | ac95190 | 2015-02-11 15:21:04 +0100 | [diff] [blame] | 2100 | as->root = root; |
Paolo Bonzini | 374f298 | 2013-05-17 12:37:03 +0200 | [diff] [blame] | 2101 | call_rcu(as, do_address_space_destroy, rcu); |
| 2102 | } |
| 2103 | |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2104 | typedef struct MemoryRegionList MemoryRegionList; |
| 2105 | |
| 2106 | struct MemoryRegionList { |
| 2107 | const MemoryRegion *mr; |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2108 | QTAILQ_ENTRY(MemoryRegionList) queue; |
| 2109 | }; |
| 2110 | |
| 2111 | typedef QTAILQ_HEAD(queue, MemoryRegionList) MemoryRegionListHead; |
| 2112 | |
| 2113 | static void mtree_print_mr(fprintf_function mon_printf, void *f, |
| 2114 | const MemoryRegion *mr, unsigned int level, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2115 | hwaddr base, |
Jan Kiszka | 9479c57 | 2011-09-27 15:00:41 +0200 | [diff] [blame] | 2116 | MemoryRegionListHead *alias_print_queue) |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2117 | { |
Jan Kiszka | 9479c57 | 2011-09-27 15:00:41 +0200 | [diff] [blame] | 2118 | MemoryRegionList *new_ml, *ml, *next_ml; |
| 2119 | MemoryRegionListHead submr_print_queue; |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2120 | const MemoryRegion *submr; |
| 2121 | unsigned int i; |
| 2122 | |
Gerd Hoffmann | f8a9f72 | 2015-04-08 12:57:11 +0200 | [diff] [blame] | 2123 | if (!mr) { |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2124 | return; |
| 2125 | } |
| 2126 | |
| 2127 | for (i = 0; i < level; i++) { |
| 2128 | mon_printf(f, " "); |
| 2129 | } |
| 2130 | |
| 2131 | if (mr->alias) { |
| 2132 | MemoryRegionList *ml; |
| 2133 | bool found = false; |
| 2134 | |
| 2135 | /* check if the alias is already in the queue */ |
Jan Kiszka | 9479c57 | 2011-09-27 15:00:41 +0200 | [diff] [blame] | 2136 | QTAILQ_FOREACH(ml, alias_print_queue, queue) { |
Paolo Bonzini | f54bb15 | 2013-12-11 12:51:46 +0100 | [diff] [blame] | 2137 | if (ml->mr == mr->alias) { |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2138 | found = true; |
| 2139 | } |
| 2140 | } |
| 2141 | |
| 2142 | if (!found) { |
| 2143 | ml = g_new(MemoryRegionList, 1); |
| 2144 | ml->mr = mr->alias; |
Jan Kiszka | 9479c57 | 2011-09-27 15:00:41 +0200 | [diff] [blame] | 2145 | QTAILQ_INSERT_TAIL(alias_print_queue, ml, queue); |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2146 | } |
Jan Kiszka | 4896d74 | 2012-02-04 16:25:42 +0100 | [diff] [blame] | 2147 | mon_printf(f, TARGET_FMT_plx "-" TARGET_FMT_plx |
| 2148 | " (prio %d, %c%c): alias %s @%s " TARGET_FMT_plx |
Gerd Hoffmann | f8a9f72 | 2015-04-08 12:57:11 +0200 | [diff] [blame] | 2149 | "-" TARGET_FMT_plx "%s\n", |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2150 | base + mr->addr, |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 2151 | base + mr->addr |
Alex Williamson | fd1d992 | 2013-07-19 12:42:12 -0600 | [diff] [blame] | 2152 | + (int128_nz(mr->size) ? |
| 2153 | (hwaddr)int128_get64(int128_sub(mr->size, |
| 2154 | int128_one())) : 0), |
Jan Kiszka | 4b474ba | 2011-09-27 15:00:31 +0200 | [diff] [blame] | 2155 | mr->priority, |
Jan Kiszka | 5f9a5ea | 2013-05-07 19:04:25 +0200 | [diff] [blame] | 2156 | mr->romd_mode ? 'R' : '-', |
| 2157 | !mr->readonly && !(mr->rom_device && mr->romd_mode) ? 'W' |
| 2158 | : '-', |
Peter Crosthwaite | 3fb18b4 | 2014-08-14 23:55:36 -0700 | [diff] [blame] | 2159 | memory_region_name(mr), |
| 2160 | memory_region_name(mr->alias), |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2161 | mr->alias_offset, |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 2162 | mr->alias_offset |
Alexey Kardashevskiy | a66670c | 2013-08-30 18:10:38 +1000 | [diff] [blame] | 2163 | + (int128_nz(mr->size) ? |
| 2164 | (hwaddr)int128_get64(int128_sub(mr->size, |
Gerd Hoffmann | f8a9f72 | 2015-04-08 12:57:11 +0200 | [diff] [blame] | 2165 | int128_one())) : 0), |
| 2166 | mr->enabled ? "" : " [disabled]"); |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2167 | } else { |
Jan Kiszka | 4896d74 | 2012-02-04 16:25:42 +0100 | [diff] [blame] | 2168 | mon_printf(f, |
Gerd Hoffmann | f8a9f72 | 2015-04-08 12:57:11 +0200 | [diff] [blame] | 2169 | TARGET_FMT_plx "-" TARGET_FMT_plx " (prio %d, %c%c): %s%s\n", |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2170 | base + mr->addr, |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 2171 | base + mr->addr |
Alex Williamson | fd1d992 | 2013-07-19 12:42:12 -0600 | [diff] [blame] | 2172 | + (int128_nz(mr->size) ? |
| 2173 | (hwaddr)int128_get64(int128_sub(mr->size, |
| 2174 | int128_one())) : 0), |
Jan Kiszka | 4b474ba | 2011-09-27 15:00:31 +0200 | [diff] [blame] | 2175 | mr->priority, |
Jan Kiszka | 5f9a5ea | 2013-05-07 19:04:25 +0200 | [diff] [blame] | 2176 | mr->romd_mode ? 'R' : '-', |
| 2177 | !mr->readonly && !(mr->rom_device && mr->romd_mode) ? 'W' |
| 2178 | : '-', |
Gerd Hoffmann | f8a9f72 | 2015-04-08 12:57:11 +0200 | [diff] [blame] | 2179 | memory_region_name(mr), |
| 2180 | mr->enabled ? "" : " [disabled]"); |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2181 | } |
Jan Kiszka | 9479c57 | 2011-09-27 15:00:41 +0200 | [diff] [blame] | 2182 | |
| 2183 | QTAILQ_INIT(&submr_print_queue); |
| 2184 | |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2185 | QTAILQ_FOREACH(submr, &mr->subregions, subregions_link) { |
Jan Kiszka | 9479c57 | 2011-09-27 15:00:41 +0200 | [diff] [blame] | 2186 | new_ml = g_new(MemoryRegionList, 1); |
| 2187 | new_ml->mr = submr; |
| 2188 | QTAILQ_FOREACH(ml, &submr_print_queue, queue) { |
| 2189 | if (new_ml->mr->addr < ml->mr->addr || |
| 2190 | (new_ml->mr->addr == ml->mr->addr && |
| 2191 | new_ml->mr->priority > ml->mr->priority)) { |
| 2192 | QTAILQ_INSERT_BEFORE(ml, new_ml, queue); |
| 2193 | new_ml = NULL; |
| 2194 | break; |
| 2195 | } |
| 2196 | } |
| 2197 | if (new_ml) { |
| 2198 | QTAILQ_INSERT_TAIL(&submr_print_queue, new_ml, queue); |
| 2199 | } |
| 2200 | } |
| 2201 | |
| 2202 | QTAILQ_FOREACH(ml, &submr_print_queue, queue) { |
| 2203 | mtree_print_mr(mon_printf, f, ml->mr, level + 1, base + mr->addr, |
| 2204 | alias_print_queue); |
| 2205 | } |
| 2206 | |
Avi Kivity | 88365e4 | 2011-11-13 12:00:55 +0200 | [diff] [blame] | 2207 | QTAILQ_FOREACH_SAFE(ml, &submr_print_queue, queue, next_ml) { |
Jan Kiszka | 9479c57 | 2011-09-27 15:00:41 +0200 | [diff] [blame] | 2208 | g_free(ml); |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2209 | } |
| 2210 | } |
| 2211 | |
| 2212 | void mtree_info(fprintf_function mon_printf, void *f) |
| 2213 | { |
| 2214 | MemoryRegionListHead ml_head; |
| 2215 | MemoryRegionList *ml, *ml2; |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 2216 | AddressSpace *as; |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2217 | |
| 2218 | QTAILQ_INIT(&ml_head); |
| 2219 | |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 2220 | QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) { |
Gerd Hoffmann | e48816a | 2015-04-08 12:53:47 +0200 | [diff] [blame] | 2221 | mon_printf(f, "address-space: %s\n", as->name); |
| 2222 | mtree_print_mr(mon_printf, f, as->root, 1, 0, &ml_head); |
| 2223 | mon_printf(f, "\n"); |
Blue Swirl | b9f9be8 | 2012-03-10 16:58:35 +0000 | [diff] [blame] | 2224 | } |
| 2225 | |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2226 | /* print aliased regions */ |
| 2227 | QTAILQ_FOREACH(ml, &ml_head, queue) { |
Gerd Hoffmann | e48816a | 2015-04-08 12:53:47 +0200 | [diff] [blame] | 2228 | mon_printf(f, "memory-region: %s\n", memory_region_name(ml->mr)); |
| 2229 | mtree_print_mr(mon_printf, f, ml->mr, 1, 0, &ml_head); |
| 2230 | mon_printf(f, "\n"); |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2231 | } |
| 2232 | |
| 2233 | QTAILQ_FOREACH_SAFE(ml, &ml_head, queue, ml2) { |
Avi Kivity | 88365e4 | 2011-11-13 12:00:55 +0200 | [diff] [blame] | 2234 | g_free(ml); |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2235 | } |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2236 | } |
Peter Crosthwaite | b4fefef | 2014-06-05 23:15:52 -0700 | [diff] [blame] | 2237 | |
| 2238 | static const TypeInfo memory_region_info = { |
| 2239 | .parent = TYPE_OBJECT, |
| 2240 | .name = TYPE_MEMORY_REGION, |
| 2241 | .instance_size = sizeof(MemoryRegion), |
| 2242 | .instance_init = memory_region_initfn, |
| 2243 | .instance_finalize = memory_region_finalize, |
| 2244 | }; |
| 2245 | |
| 2246 | static void memory_register_types(void) |
| 2247 | { |
| 2248 | type_register_static(&memory_region_info); |
| 2249 | } |
| 2250 | |
| 2251 | type_init(memory_register_types) |