Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1 | /* |
| 2 | * Physical memory management |
| 3 | * |
| 4 | * Copyright 2011 Red Hat, Inc. and/or its affiliates |
| 5 | * |
| 6 | * Authors: |
| 7 | * Avi Kivity <avi@redhat.com> |
| 8 | * |
| 9 | * This work is licensed under the terms of the GNU GPL, version 2. See |
| 10 | * the COPYING file in the top-level directory. |
| 11 | * |
Paolo Bonzini | 6b620ca | 2012-01-13 17:44:23 +0100 | [diff] [blame] | 12 | * Contributions after 2012-01-13 are licensed under the terms of the |
| 13 | * GNU GPL, version 2 or (at your option) any later version. |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 14 | */ |
| 15 | |
Peter Maydell | d38ea87 | 2016-01-29 17:50:05 +0000 | [diff] [blame] | 16 | #include "qemu/osdep.h" |
Markus Armbruster | da34e65 | 2016-03-14 09:01:28 +0100 | [diff] [blame] | 17 | #include "qapi/error.h" |
Paolo Bonzini | 33c1187 | 2016-03-15 16:58:45 +0100 | [diff] [blame] | 18 | #include "qemu-common.h" |
| 19 | #include "cpu.h" |
Paolo Bonzini | 022c62c | 2012-12-17 18:19:49 +0100 | [diff] [blame] | 20 | #include "exec/memory.h" |
| 21 | #include "exec/address-spaces.h" |
Peter Crosthwaite | 409ddd0 | 2014-06-05 23:16:27 -0700 | [diff] [blame] | 22 | #include "qapi/visitor.h" |
Paolo Bonzini | 1de7afc | 2012-12-17 18:20:00 +0100 | [diff] [blame] | 23 | #include "qemu/bitops.h" |
Pavel Fedin | 8c56c1a | 2015-11-20 12:37:16 +0300 | [diff] [blame] | 24 | #include "qemu/error-report.h" |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 25 | #include "qom/object.h" |
Daniel P. Berrange | 0ab8ed1 | 2017-01-25 16:14:15 +0000 | [diff] [blame] | 26 | #include "trace-root.h" |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 27 | |
Paolo Bonzini | 022c62c | 2012-12-17 18:19:49 +0100 | [diff] [blame] | 28 | #include "exec/memory-internal.h" |
Juan Quintela | 220c3eb | 2013-10-14 17:13:59 +0200 | [diff] [blame] | 29 | #include "exec/ram_addr.h" |
Pavel Fedin | 8c56c1a | 2015-11-20 12:37:16 +0300 | [diff] [blame] | 30 | #include "sysemu/kvm.h" |
Paolo Bonzini | e1c57ab | 2014-05-14 17:43:18 +0800 | [diff] [blame] | 31 | #include "sysemu/sysemu.h" |
KONRAD Frederic | c935674 | 2016-10-19 15:06:49 +0200 | [diff] [blame] | 32 | #include "hw/qdev-properties.h" |
Peter Maydell | b08199c | 2017-07-07 15:42:51 +0100 | [diff] [blame] | 33 | #include "migration/vmstate.h" |
Avi Kivity | 67d95c1 | 2011-12-15 15:25:22 +0200 | [diff] [blame] | 34 | |
Paolo Bonzini | d197063 | 2013-05-24 13:23:38 +0200 | [diff] [blame] | 35 | //#define DEBUG_UNASSIGNED |
| 36 | |
Jan Kiszka | 22bde71 | 2012-11-05 16:45:56 +0100 | [diff] [blame] | 37 | static unsigned memory_region_transaction_depth; |
| 38 | static bool memory_region_update_pending; |
Gonglei | 4dc5615 | 2014-05-08 11:47:32 +0800 | [diff] [blame] | 39 | static bool ioeventfd_update_pending; |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 40 | static bool global_dirty_log = false; |
| 41 | |
Avi Kivity | 72e22d2 | 2012-02-08 15:05:50 +0200 | [diff] [blame] | 42 | static QTAILQ_HEAD(memory_listeners, MemoryListener) memory_listeners |
| 43 | = QTAILQ_HEAD_INITIALIZER(memory_listeners); |
Avi Kivity | 4ef4db8 | 2011-07-26 14:26:13 +0300 | [diff] [blame] | 44 | |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 45 | static QTAILQ_HEAD(, AddressSpace) address_spaces |
| 46 | = QTAILQ_HEAD_INITIALIZER(address_spaces); |
| 47 | |
Alexey Kardashevskiy | 967dc9b | 2017-09-21 18:51:04 +1000 | [diff] [blame] | 48 | static GHashTable *flat_views; |
| 49 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 50 | typedef struct AddrRange AddrRange; |
| 51 | |
Avi Kivity | 8417ceb | 2011-08-03 11:56:14 +0300 | [diff] [blame] | 52 | /* |
Fam Zheng | c9cdaa3 | 2014-08-11 10:18:31 +0800 | [diff] [blame] | 53 | * Note that signed integers are needed for negative offsetting in aliases |
Avi Kivity | 8417ceb | 2011-08-03 11:56:14 +0300 | [diff] [blame] | 54 | * (large MemoryRegion::alias_offset). |
| 55 | */ |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 56 | struct AddrRange { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 57 | Int128 start; |
| 58 | Int128 size; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 59 | }; |
| 60 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 61 | static AddrRange addrrange_make(Int128 start, Int128 size) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 62 | { |
| 63 | return (AddrRange) { start, size }; |
| 64 | } |
| 65 | |
| 66 | static bool addrrange_equal(AddrRange r1, AddrRange r2) |
| 67 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 68 | return int128_eq(r1.start, r2.start) && int128_eq(r1.size, r2.size); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 69 | } |
| 70 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 71 | static Int128 addrrange_end(AddrRange r) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 72 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 73 | return int128_add(r.start, r.size); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 74 | } |
| 75 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 76 | static AddrRange addrrange_shift(AddrRange range, Int128 delta) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 77 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 78 | int128_addto(&range.start, delta); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 79 | return range; |
| 80 | } |
| 81 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 82 | static bool addrrange_contains(AddrRange range, Int128 addr) |
| 83 | { |
| 84 | return int128_ge(addr, range.start) |
| 85 | && int128_lt(addr, addrrange_end(range)); |
| 86 | } |
| 87 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 88 | static bool addrrange_intersects(AddrRange r1, AddrRange r2) |
| 89 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 90 | return addrrange_contains(r1, r2.start) |
| 91 | || addrrange_contains(r2, r1.start); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 92 | } |
| 93 | |
| 94 | static AddrRange addrrange_intersection(AddrRange r1, AddrRange r2) |
| 95 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 96 | Int128 start = int128_max(r1.start, r2.start); |
| 97 | Int128 end = int128_min(addrrange_end(r1), addrrange_end(r2)); |
| 98 | return addrrange_make(start, int128_sub(end, start)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 99 | } |
| 100 | |
Avi Kivity | 0e0d36b | 2012-02-08 16:39:45 +0200 | [diff] [blame] | 101 | enum ListenerDirection { Forward, Reverse }; |
| 102 | |
Avi Kivity | 7376e58 | 2012-02-08 21:05:17 +0200 | [diff] [blame] | 103 | #define MEMORY_LISTENER_CALL_GLOBAL(_callback, _direction, _args...) \ |
Avi Kivity | 0e0d36b | 2012-02-08 16:39:45 +0200 | [diff] [blame] | 104 | do { \ |
| 105 | MemoryListener *_listener; \ |
| 106 | \ |
| 107 | switch (_direction) { \ |
| 108 | case Forward: \ |
| 109 | QTAILQ_FOREACH(_listener, &memory_listeners, link) { \ |
Avi Kivity | 975aefe | 2012-10-02 16:39:57 +0200 | [diff] [blame] | 110 | if (_listener->_callback) { \ |
| 111 | _listener->_callback(_listener, ##_args); \ |
| 112 | } \ |
Avi Kivity | 0e0d36b | 2012-02-08 16:39:45 +0200 | [diff] [blame] | 113 | } \ |
| 114 | break; \ |
| 115 | case Reverse: \ |
| 116 | QTAILQ_FOREACH_REVERSE(_listener, &memory_listeners, \ |
| 117 | memory_listeners, link) { \ |
Avi Kivity | 975aefe | 2012-10-02 16:39:57 +0200 | [diff] [blame] | 118 | if (_listener->_callback) { \ |
| 119 | _listener->_callback(_listener, ##_args); \ |
| 120 | } \ |
Avi Kivity | 0e0d36b | 2012-02-08 16:39:45 +0200 | [diff] [blame] | 121 | } \ |
| 122 | break; \ |
| 123 | default: \ |
| 124 | abort(); \ |
| 125 | } \ |
| 126 | } while (0) |
| 127 | |
Paolo Bonzini | 9a54635 | 2016-09-22 16:23:06 +0200 | [diff] [blame] | 128 | #define MEMORY_LISTENER_CALL(_as, _callback, _direction, _section, _args...) \ |
Avi Kivity | 7376e58 | 2012-02-08 21:05:17 +0200 | [diff] [blame] | 129 | do { \ |
| 130 | MemoryListener *_listener; \ |
Paolo Bonzini | 9a54635 | 2016-09-22 16:23:06 +0200 | [diff] [blame] | 131 | struct memory_listeners_as *list = &(_as)->listeners; \ |
Avi Kivity | 7376e58 | 2012-02-08 21:05:17 +0200 | [diff] [blame] | 132 | \ |
| 133 | switch (_direction) { \ |
| 134 | case Forward: \ |
Paolo Bonzini | 9a54635 | 2016-09-22 16:23:06 +0200 | [diff] [blame] | 135 | QTAILQ_FOREACH(_listener, list, link_as) { \ |
| 136 | if (_listener->_callback) { \ |
Avi Kivity | 7376e58 | 2012-02-08 21:05:17 +0200 | [diff] [blame] | 137 | _listener->_callback(_listener, _section, ##_args); \ |
| 138 | } \ |
| 139 | } \ |
| 140 | break; \ |
| 141 | case Reverse: \ |
Paolo Bonzini | 9a54635 | 2016-09-22 16:23:06 +0200 | [diff] [blame] | 142 | QTAILQ_FOREACH_REVERSE(_listener, list, memory_listeners_as, \ |
| 143 | link_as) { \ |
| 144 | if (_listener->_callback) { \ |
Avi Kivity | 7376e58 | 2012-02-08 21:05:17 +0200 | [diff] [blame] | 145 | _listener->_callback(_listener, _section, ##_args); \ |
| 146 | } \ |
| 147 | } \ |
| 148 | break; \ |
| 149 | default: \ |
| 150 | abort(); \ |
| 151 | } \ |
| 152 | } while (0) |
| 153 | |
Paolo Bonzini | dfde4e6 | 2013-05-06 10:46:11 +0200 | [diff] [blame] | 154 | /* No need to ref/unref .mr, the FlatRange keeps it alive. */ |
Paolo Bonzini | b2dfd71 | 2015-04-25 14:38:30 +0200 | [diff] [blame] | 155 | #define MEMORY_LISTENER_UPDATE_REGION(fr, as, dir, callback, _args...) \ |
Paolo Bonzini | 9c1f8f4 | 2016-09-22 16:08:31 +0200 | [diff] [blame] | 156 | do { \ |
Alexey Kardashevskiy | 1662068 | 2017-09-21 18:50:58 +1000 | [diff] [blame] | 157 | MemoryRegionSection mrs = section_from_flat_range(fr, \ |
| 158 | address_space_to_flatview(as)); \ |
Paolo Bonzini | 9a54635 | 2016-09-22 16:23:06 +0200 | [diff] [blame] | 159 | MEMORY_LISTENER_CALL(as, callback, dir, &mrs, ##_args); \ |
Paolo Bonzini | 9c1f8f4 | 2016-09-22 16:08:31 +0200 | [diff] [blame] | 160 | } while(0) |
Avi Kivity | 0e0d36b | 2012-02-08 16:39:45 +0200 | [diff] [blame] | 161 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 162 | struct CoalescedMemoryRange { |
| 163 | AddrRange addr; |
| 164 | QTAILQ_ENTRY(CoalescedMemoryRange) link; |
| 165 | }; |
| 166 | |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 167 | struct MemoryRegionIoeventfd { |
| 168 | AddrRange addr; |
| 169 | bool match_data; |
| 170 | uint64_t data; |
Paolo Bonzini | 753d5e1 | 2012-07-05 17:16:27 +0200 | [diff] [blame] | 171 | EventNotifier *e; |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 172 | }; |
| 173 | |
Tristan Burgess | 73bb753 | 2018-05-28 23:04:45 -0400 | [diff] [blame] | 174 | static bool memory_region_ioeventfd_before(MemoryRegionIoeventfd *a, |
| 175 | MemoryRegionIoeventfd *b) |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 176 | { |
Tristan Burgess | 73bb753 | 2018-05-28 23:04:45 -0400 | [diff] [blame] | 177 | if (int128_lt(a->addr.start, b->addr.start)) { |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 178 | return true; |
Tristan Burgess | 73bb753 | 2018-05-28 23:04:45 -0400 | [diff] [blame] | 179 | } else if (int128_gt(a->addr.start, b->addr.start)) { |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 180 | return false; |
Tristan Burgess | 73bb753 | 2018-05-28 23:04:45 -0400 | [diff] [blame] | 181 | } else if (int128_lt(a->addr.size, b->addr.size)) { |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 182 | return true; |
Tristan Burgess | 73bb753 | 2018-05-28 23:04:45 -0400 | [diff] [blame] | 183 | } else if (int128_gt(a->addr.size, b->addr.size)) { |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 184 | return false; |
Tristan Burgess | 73bb753 | 2018-05-28 23:04:45 -0400 | [diff] [blame] | 185 | } else if (a->match_data < b->match_data) { |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 186 | return true; |
Tristan Burgess | 73bb753 | 2018-05-28 23:04:45 -0400 | [diff] [blame] | 187 | } else if (a->match_data > b->match_data) { |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 188 | return false; |
Tristan Burgess | 73bb753 | 2018-05-28 23:04:45 -0400 | [diff] [blame] | 189 | } else if (a->match_data) { |
| 190 | if (a->data < b->data) { |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 191 | return true; |
Tristan Burgess | 73bb753 | 2018-05-28 23:04:45 -0400 | [diff] [blame] | 192 | } else if (a->data > b->data) { |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 193 | return false; |
| 194 | } |
| 195 | } |
Tristan Burgess | 73bb753 | 2018-05-28 23:04:45 -0400 | [diff] [blame] | 196 | if (a->e < b->e) { |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 197 | return true; |
Tristan Burgess | 73bb753 | 2018-05-28 23:04:45 -0400 | [diff] [blame] | 198 | } else if (a->e > b->e) { |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 199 | return false; |
| 200 | } |
| 201 | return false; |
| 202 | } |
| 203 | |
Tristan Burgess | 73bb753 | 2018-05-28 23:04:45 -0400 | [diff] [blame] | 204 | static bool memory_region_ioeventfd_equal(MemoryRegionIoeventfd *a, |
| 205 | MemoryRegionIoeventfd *b) |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 206 | { |
| 207 | return !memory_region_ioeventfd_before(a, b) |
| 208 | && !memory_region_ioeventfd_before(b, a); |
| 209 | } |
| 210 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 211 | /* Range of memory in the global map. Addresses are absolute. */ |
| 212 | struct FlatRange { |
| 213 | MemoryRegion *mr; |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 214 | hwaddr offset_in_region; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 215 | AddrRange addr; |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 216 | uint8_t dirty_log_mask; |
Paolo Bonzini | b138e65 | 2016-05-24 21:26:28 +0200 | [diff] [blame] | 217 | bool romd_mode; |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 218 | bool readonly; |
Marc-André Lureau | c26763f | 2018-10-03 15:44:52 +0400 | [diff] [blame] | 219 | bool nonvolatile; |
Paolo Bonzini | 3ac7d43 | 2018-11-28 17:28:45 +0100 | [diff] [blame] | 220 | int has_coalesced_range; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 221 | }; |
| 222 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 223 | #define FOR_EACH_FLAT_RANGE(var, view) \ |
| 224 | for (var = (view)->ranges; var < (view)->ranges + (view)->nr; ++var) |
| 225 | |
Paolo Bonzini | 9c1f8f4 | 2016-09-22 16:08:31 +0200 | [diff] [blame] | 226 | static inline MemoryRegionSection |
Alexey Kardashevskiy | 1662068 | 2017-09-21 18:50:58 +1000 | [diff] [blame] | 227 | section_from_flat_range(FlatRange *fr, FlatView *fv) |
Paolo Bonzini | 9c1f8f4 | 2016-09-22 16:08:31 +0200 | [diff] [blame] | 228 | { |
| 229 | return (MemoryRegionSection) { |
| 230 | .mr = fr->mr, |
Alexey Kardashevskiy | 1662068 | 2017-09-21 18:50:58 +1000 | [diff] [blame] | 231 | .fv = fv, |
Paolo Bonzini | 9c1f8f4 | 2016-09-22 16:08:31 +0200 | [diff] [blame] | 232 | .offset_within_region = fr->offset_in_region, |
| 233 | .size = fr->addr.size, |
| 234 | .offset_within_address_space = int128_get64(fr->addr.start), |
| 235 | .readonly = fr->readonly, |
Marc-André Lureau | c26763f | 2018-10-03 15:44:52 +0400 | [diff] [blame] | 236 | .nonvolatile = fr->nonvolatile, |
Paolo Bonzini | 9c1f8f4 | 2016-09-22 16:08:31 +0200 | [diff] [blame] | 237 | }; |
| 238 | } |
| 239 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 240 | static bool flatrange_equal(FlatRange *a, FlatRange *b) |
| 241 | { |
| 242 | return a->mr == b->mr |
| 243 | && addrrange_equal(a->addr, b->addr) |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 244 | && a->offset_in_region == b->offset_in_region |
Paolo Bonzini | b138e65 | 2016-05-24 21:26:28 +0200 | [diff] [blame] | 245 | && a->romd_mode == b->romd_mode |
Marc-André Lureau | c26763f | 2018-10-03 15:44:52 +0400 | [diff] [blame] | 246 | && a->readonly == b->readonly |
| 247 | && a->nonvolatile == b->nonvolatile; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 248 | } |
| 249 | |
Alexey Kardashevskiy | 89c177b | 2017-09-21 18:51:01 +1000 | [diff] [blame] | 250 | static FlatView *flatview_new(MemoryRegion *mr_root) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 251 | { |
Alexey Kardashevskiy | cc94cd6 | 2017-09-21 18:50:55 +1000 | [diff] [blame] | 252 | FlatView *view; |
| 253 | |
| 254 | view = g_new0(FlatView, 1); |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 255 | view->ref = 1; |
Alexey Kardashevskiy | 89c177b | 2017-09-21 18:51:01 +1000 | [diff] [blame] | 256 | view->root = mr_root; |
| 257 | memory_region_ref(mr_root); |
Paolo Bonzini | 02d9651 | 2017-09-21 12:34:00 +0200 | [diff] [blame] | 258 | trace_flatview_new(view, mr_root); |
Alexey Kardashevskiy | cc94cd6 | 2017-09-21 18:50:55 +1000 | [diff] [blame] | 259 | |
| 260 | return view; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 261 | } |
| 262 | |
| 263 | /* Insert a range into a given position. Caller is responsible for maintaining |
| 264 | * sorting order. |
| 265 | */ |
| 266 | static void flatview_insert(FlatView *view, unsigned pos, FlatRange *range) |
| 267 | { |
| 268 | if (view->nr == view->nr_allocated) { |
| 269 | view->nr_allocated = MAX(2 * view->nr, 10); |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 270 | view->ranges = g_realloc(view->ranges, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 271 | view->nr_allocated * sizeof(*view->ranges)); |
| 272 | } |
| 273 | memmove(view->ranges + pos + 1, view->ranges + pos, |
| 274 | (view->nr - pos) * sizeof(FlatRange)); |
| 275 | view->ranges[pos] = *range; |
Paolo Bonzini | dfde4e6 | 2013-05-06 10:46:11 +0200 | [diff] [blame] | 276 | memory_region_ref(range->mr); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 277 | ++view->nr; |
| 278 | } |
| 279 | |
| 280 | static void flatview_destroy(FlatView *view) |
| 281 | { |
Paolo Bonzini | dfde4e6 | 2013-05-06 10:46:11 +0200 | [diff] [blame] | 282 | int i; |
| 283 | |
Paolo Bonzini | 02d9651 | 2017-09-21 12:34:00 +0200 | [diff] [blame] | 284 | trace_flatview_destroy(view, view->root); |
Alexey Kardashevskiy | 66a6df1 | 2017-09-21 18:50:56 +1000 | [diff] [blame] | 285 | if (view->dispatch) { |
| 286 | address_space_dispatch_free(view->dispatch); |
| 287 | } |
Paolo Bonzini | dfde4e6 | 2013-05-06 10:46:11 +0200 | [diff] [blame] | 288 | for (i = 0; i < view->nr; i++) { |
| 289 | memory_region_unref(view->ranges[i].mr); |
| 290 | } |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 291 | g_free(view->ranges); |
Alexey Kardashevskiy | 89c177b | 2017-09-21 18:51:01 +1000 | [diff] [blame] | 292 | memory_region_unref(view->root); |
Paolo Bonzini | a9a0c06 | 2013-05-06 10:29:07 +0200 | [diff] [blame] | 293 | g_free(view); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 294 | } |
| 295 | |
Paolo Bonzini | 447b0d0 | 2017-09-21 14:32:47 +0200 | [diff] [blame] | 296 | static bool flatview_ref(FlatView *view) |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 297 | { |
Paolo Bonzini | 447b0d0 | 2017-09-21 14:32:47 +0200 | [diff] [blame] | 298 | return atomic_fetch_inc_nonzero(&view->ref) > 0; |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 299 | } |
| 300 | |
Paolo Bonzini | 4856404 | 2018-03-18 18:26:36 +0100 | [diff] [blame] | 301 | void flatview_unref(FlatView *view) |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 302 | { |
| 303 | if (atomic_fetch_dec(&view->ref) == 1) { |
Paolo Bonzini | 02d9651 | 2017-09-21 12:34:00 +0200 | [diff] [blame] | 304 | trace_flatview_destroy_rcu(view, view->root); |
Alexey Kardashevskiy | 092aa2f | 2017-09-21 18:51:07 +1000 | [diff] [blame] | 305 | assert(view->root); |
Alexey Kardashevskiy | 66a6df1 | 2017-09-21 18:50:56 +1000 | [diff] [blame] | 306 | call_rcu(view, flatview_destroy, rcu); |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 307 | } |
| 308 | } |
| 309 | |
Avi Kivity | 3d8e6bf | 2011-07-26 14:26:03 +0300 | [diff] [blame] | 310 | static bool can_merge(FlatRange *r1, FlatRange *r2) |
| 311 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 312 | return int128_eq(addrrange_end(r1->addr), r2->addr.start) |
Avi Kivity | 3d8e6bf | 2011-07-26 14:26:03 +0300 | [diff] [blame] | 313 | && r1->mr == r2->mr |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 314 | && int128_eq(int128_add(int128_make64(r1->offset_in_region), |
| 315 | r1->addr.size), |
| 316 | int128_make64(r2->offset_in_region)) |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 317 | && r1->dirty_log_mask == r2->dirty_log_mask |
Paolo Bonzini | b138e65 | 2016-05-24 21:26:28 +0200 | [diff] [blame] | 318 | && r1->romd_mode == r2->romd_mode |
Marc-André Lureau | c26763f | 2018-10-03 15:44:52 +0400 | [diff] [blame] | 319 | && r1->readonly == r2->readonly |
| 320 | && r1->nonvolatile == r2->nonvolatile; |
Avi Kivity | 3d8e6bf | 2011-07-26 14:26:03 +0300 | [diff] [blame] | 321 | } |
| 322 | |
Peter Crosthwaite | 8508e02 | 2013-06-03 15:31:56 +1000 | [diff] [blame] | 323 | /* Attempt to simplify a view by merging adjacent ranges */ |
Avi Kivity | 3d8e6bf | 2011-07-26 14:26:03 +0300 | [diff] [blame] | 324 | static void flatview_simplify(FlatView *view) |
| 325 | { |
| 326 | unsigned i, j; |
| 327 | |
| 328 | i = 0; |
| 329 | while (i < view->nr) { |
| 330 | j = i + 1; |
| 331 | while (j < view->nr |
| 332 | && can_merge(&view->ranges[j-1], &view->ranges[j])) { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 333 | int128_addto(&view->ranges[i].addr.size, view->ranges[j].addr.size); |
Avi Kivity | 3d8e6bf | 2011-07-26 14:26:03 +0300 | [diff] [blame] | 334 | ++j; |
| 335 | } |
| 336 | ++i; |
| 337 | memmove(&view->ranges[i], &view->ranges[j], |
| 338 | (view->nr - j) * sizeof(view->ranges[j])); |
| 339 | view->nr -= j - i; |
| 340 | } |
| 341 | } |
| 342 | |
Paolo Bonzini | e7342aa | 2013-07-22 15:54:37 +0200 | [diff] [blame] | 343 | static bool memory_region_big_endian(MemoryRegion *mr) |
| 344 | { |
| 345 | #ifdef TARGET_WORDS_BIGENDIAN |
| 346 | return mr->ops->endianness != DEVICE_LITTLE_ENDIAN; |
| 347 | #else |
| 348 | return mr->ops->endianness == DEVICE_BIG_ENDIAN; |
| 349 | #endif |
| 350 | } |
| 351 | |
Paolo Bonzini | e11ef3d | 2013-07-22 15:54:35 +0200 | [diff] [blame] | 352 | static bool memory_region_wrong_endianness(MemoryRegion *mr) |
| 353 | { |
| 354 | #ifdef TARGET_WORDS_BIGENDIAN |
| 355 | return mr->ops->endianness == DEVICE_LITTLE_ENDIAN; |
| 356 | #else |
| 357 | return mr->ops->endianness == DEVICE_BIG_ENDIAN; |
| 358 | #endif |
| 359 | } |
| 360 | |
| 361 | static void adjust_endianness(MemoryRegion *mr, uint64_t *data, unsigned size) |
| 362 | { |
| 363 | if (memory_region_wrong_endianness(mr)) { |
| 364 | switch (size) { |
| 365 | case 1: |
| 366 | break; |
| 367 | case 2: |
| 368 | *data = bswap16(*data); |
| 369 | break; |
| 370 | case 4: |
| 371 | *data = bswap32(*data); |
| 372 | break; |
| 373 | case 8: |
| 374 | *data = bswap64(*data); |
| 375 | break; |
| 376 | default: |
| 377 | abort(); |
| 378 | } |
| 379 | } |
| 380 | } |
| 381 | |
Philippe Mathieu-Daudé | 3c754a9 | 2018-09-27 02:24:15 +0200 | [diff] [blame] | 382 | static inline void memory_region_shift_read_access(uint64_t *value, |
Philippe Mathieu-Daudé | 98f52cd | 2018-09-27 02:24:16 +0200 | [diff] [blame] | 383 | signed shift, |
Philippe Mathieu-Daudé | 3c754a9 | 2018-09-27 02:24:15 +0200 | [diff] [blame] | 384 | uint64_t mask, |
| 385 | uint64_t tmp) |
| 386 | { |
Philippe Mathieu-Daudé | 98f52cd | 2018-09-27 02:24:16 +0200 | [diff] [blame] | 387 | if (shift >= 0) { |
| 388 | *value |= (tmp & mask) << shift; |
| 389 | } else { |
| 390 | *value |= (tmp & mask) >> -shift; |
| 391 | } |
Philippe Mathieu-Daudé | 3c754a9 | 2018-09-27 02:24:15 +0200 | [diff] [blame] | 392 | } |
| 393 | |
| 394 | static inline uint64_t memory_region_shift_write_access(uint64_t *value, |
Philippe Mathieu-Daudé | 98f52cd | 2018-09-27 02:24:16 +0200 | [diff] [blame] | 395 | signed shift, |
Philippe Mathieu-Daudé | 3c754a9 | 2018-09-27 02:24:15 +0200 | [diff] [blame] | 396 | uint64_t mask) |
| 397 | { |
Philippe Mathieu-Daudé | 98f52cd | 2018-09-27 02:24:16 +0200 | [diff] [blame] | 398 | uint64_t tmp; |
| 399 | |
| 400 | if (shift >= 0) { |
| 401 | tmp = (*value >> shift) & mask; |
| 402 | } else { |
| 403 | tmp = (*value << -shift) & mask; |
| 404 | } |
| 405 | |
| 406 | return tmp; |
Philippe Mathieu-Daudé | 3c754a9 | 2018-09-27 02:24:15 +0200 | [diff] [blame] | 407 | } |
| 408 | |
Hollis Blanchard | 4779dc1 | 2016-02-08 16:03:05 -0800 | [diff] [blame] | 409 | static hwaddr memory_region_to_absolute_addr(MemoryRegion *mr, hwaddr offset) |
| 410 | { |
| 411 | MemoryRegion *root; |
| 412 | hwaddr abs_addr = offset; |
| 413 | |
| 414 | abs_addr += mr->addr; |
| 415 | for (root = mr; root->container; ) { |
| 416 | root = root->container; |
| 417 | abs_addr += root->addr; |
| 418 | } |
| 419 | |
| 420 | return abs_addr; |
| 421 | } |
| 422 | |
Hollis Blanchard | 5a68be9 | 2016-03-02 12:12:54 -0800 | [diff] [blame] | 423 | static int get_cpu_index(void) |
| 424 | { |
| 425 | if (current_cpu) { |
| 426 | return current_cpu->cpu_index; |
| 427 | } |
| 428 | return -1; |
| 429 | } |
| 430 | |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 431 | static MemTxResult memory_region_read_accessor(MemoryRegion *mr, |
| 432 | hwaddr addr, |
| 433 | uint64_t *value, |
| 434 | unsigned size, |
Philippe Mathieu-Daudé | 98f52cd | 2018-09-27 02:24:16 +0200 | [diff] [blame] | 435 | signed shift, |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 436 | uint64_t mask, |
| 437 | MemTxAttrs attrs) |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 438 | { |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 439 | uint64_t tmp; |
| 440 | |
| 441 | tmp = mr->ops->read(mr->opaque, addr, size); |
Hollis Blanchard | 23d92d6 | 2016-02-08 16:03:04 -0800 | [diff] [blame] | 442 | if (mr->subpage) { |
Hollis Blanchard | 5a68be9 | 2016-03-02 12:12:54 -0800 | [diff] [blame] | 443 | trace_memory_region_subpage_read(get_cpu_index(), mr, addr, tmp, size); |
Hollis Blanchard | f2d0894 | 2016-03-02 12:12:55 -0800 | [diff] [blame] | 444 | } else if (mr == &io_mem_notdirty) { |
| 445 | /* Accesses to code which has previously been translated into a TB show |
| 446 | * up in the MMIO path, as accesses to the io_mem_notdirty |
| 447 | * MemoryRegion. */ |
| 448 | trace_memory_region_tb_read(get_cpu_index(), addr, tmp, size); |
Hollis Blanchard | 4779dc1 | 2016-02-08 16:03:05 -0800 | [diff] [blame] | 449 | } else if (TRACE_MEMORY_REGION_OPS_READ_ENABLED) { |
| 450 | hwaddr abs_addr = memory_region_to_absolute_addr(mr, addr); |
Hollis Blanchard | 5a68be9 | 2016-03-02 12:12:54 -0800 | [diff] [blame] | 451 | trace_memory_region_ops_read(get_cpu_index(), mr, abs_addr, tmp, size); |
Hollis Blanchard | 23d92d6 | 2016-02-08 16:03:04 -0800 | [diff] [blame] | 452 | } |
Philippe Mathieu-Daudé | 3c754a9 | 2018-09-27 02:24:15 +0200 | [diff] [blame] | 453 | memory_region_shift_read_access(value, shift, mask, tmp); |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 454 | return MEMTX_OK; |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 455 | } |
| 456 | |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 457 | static MemTxResult memory_region_read_with_attrs_accessor(MemoryRegion *mr, |
| 458 | hwaddr addr, |
| 459 | uint64_t *value, |
| 460 | unsigned size, |
Philippe Mathieu-Daudé | 98f52cd | 2018-09-27 02:24:16 +0200 | [diff] [blame] | 461 | signed shift, |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 462 | uint64_t mask, |
| 463 | MemTxAttrs attrs) |
| 464 | { |
| 465 | uint64_t tmp = 0; |
| 466 | MemTxResult r; |
| 467 | |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 468 | r = mr->ops->read_with_attrs(mr->opaque, addr, &tmp, size, attrs); |
Hollis Blanchard | 23d92d6 | 2016-02-08 16:03:04 -0800 | [diff] [blame] | 469 | if (mr->subpage) { |
Hollis Blanchard | 5a68be9 | 2016-03-02 12:12:54 -0800 | [diff] [blame] | 470 | trace_memory_region_subpage_read(get_cpu_index(), mr, addr, tmp, size); |
Hollis Blanchard | f2d0894 | 2016-03-02 12:12:55 -0800 | [diff] [blame] | 471 | } else if (mr == &io_mem_notdirty) { |
| 472 | /* Accesses to code which has previously been translated into a TB show |
| 473 | * up in the MMIO path, as accesses to the io_mem_notdirty |
| 474 | * MemoryRegion. */ |
| 475 | trace_memory_region_tb_read(get_cpu_index(), addr, tmp, size); |
Hollis Blanchard | 4779dc1 | 2016-02-08 16:03:05 -0800 | [diff] [blame] | 476 | } else if (TRACE_MEMORY_REGION_OPS_READ_ENABLED) { |
| 477 | hwaddr abs_addr = memory_region_to_absolute_addr(mr, addr); |
Hollis Blanchard | 5a68be9 | 2016-03-02 12:12:54 -0800 | [diff] [blame] | 478 | trace_memory_region_ops_read(get_cpu_index(), mr, abs_addr, tmp, size); |
Hollis Blanchard | 23d92d6 | 2016-02-08 16:03:04 -0800 | [diff] [blame] | 479 | } |
Philippe Mathieu-Daudé | 3c754a9 | 2018-09-27 02:24:15 +0200 | [diff] [blame] | 480 | memory_region_shift_read_access(value, shift, mask, tmp); |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 481 | return r; |
| 482 | } |
| 483 | |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 484 | static MemTxResult memory_region_write_accessor(MemoryRegion *mr, |
| 485 | hwaddr addr, |
| 486 | uint64_t *value, |
| 487 | unsigned size, |
Philippe Mathieu-Daudé | 98f52cd | 2018-09-27 02:24:16 +0200 | [diff] [blame] | 488 | signed shift, |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 489 | uint64_t mask, |
| 490 | MemTxAttrs attrs) |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 491 | { |
Philippe Mathieu-Daudé | 3c754a9 | 2018-09-27 02:24:15 +0200 | [diff] [blame] | 492 | uint64_t tmp = memory_region_shift_write_access(value, shift, mask); |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 493 | |
Hollis Blanchard | 23d92d6 | 2016-02-08 16:03:04 -0800 | [diff] [blame] | 494 | if (mr->subpage) { |
Hollis Blanchard | 5a68be9 | 2016-03-02 12:12:54 -0800 | [diff] [blame] | 495 | trace_memory_region_subpage_write(get_cpu_index(), mr, addr, tmp, size); |
Hollis Blanchard | f2d0894 | 2016-03-02 12:12:55 -0800 | [diff] [blame] | 496 | } else if (mr == &io_mem_notdirty) { |
| 497 | /* Accesses to code which has previously been translated into a TB show |
| 498 | * up in the MMIO path, as accesses to the io_mem_notdirty |
| 499 | * MemoryRegion. */ |
| 500 | trace_memory_region_tb_write(get_cpu_index(), addr, tmp, size); |
Hollis Blanchard | 4779dc1 | 2016-02-08 16:03:05 -0800 | [diff] [blame] | 501 | } else if (TRACE_MEMORY_REGION_OPS_WRITE_ENABLED) { |
| 502 | hwaddr abs_addr = memory_region_to_absolute_addr(mr, addr); |
Hollis Blanchard | 5a68be9 | 2016-03-02 12:12:54 -0800 | [diff] [blame] | 503 | trace_memory_region_ops_write(get_cpu_index(), mr, abs_addr, tmp, size); |
Hollis Blanchard | 23d92d6 | 2016-02-08 16:03:04 -0800 | [diff] [blame] | 504 | } |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 505 | mr->ops->write(mr->opaque, addr, tmp, size); |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 506 | return MEMTX_OK; |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 507 | } |
| 508 | |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 509 | static MemTxResult memory_region_write_with_attrs_accessor(MemoryRegion *mr, |
| 510 | hwaddr addr, |
| 511 | uint64_t *value, |
| 512 | unsigned size, |
Philippe Mathieu-Daudé | 98f52cd | 2018-09-27 02:24:16 +0200 | [diff] [blame] | 513 | signed shift, |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 514 | uint64_t mask, |
| 515 | MemTxAttrs attrs) |
| 516 | { |
Philippe Mathieu-Daudé | 3c754a9 | 2018-09-27 02:24:15 +0200 | [diff] [blame] | 517 | uint64_t tmp = memory_region_shift_write_access(value, shift, mask); |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 518 | |
Hollis Blanchard | 23d92d6 | 2016-02-08 16:03:04 -0800 | [diff] [blame] | 519 | if (mr->subpage) { |
Hollis Blanchard | 5a68be9 | 2016-03-02 12:12:54 -0800 | [diff] [blame] | 520 | trace_memory_region_subpage_write(get_cpu_index(), mr, addr, tmp, size); |
Hollis Blanchard | f2d0894 | 2016-03-02 12:12:55 -0800 | [diff] [blame] | 521 | } else if (mr == &io_mem_notdirty) { |
| 522 | /* Accesses to code which has previously been translated into a TB show |
| 523 | * up in the MMIO path, as accesses to the io_mem_notdirty |
| 524 | * MemoryRegion. */ |
| 525 | trace_memory_region_tb_write(get_cpu_index(), addr, tmp, size); |
Hollis Blanchard | 4779dc1 | 2016-02-08 16:03:05 -0800 | [diff] [blame] | 526 | } else if (TRACE_MEMORY_REGION_OPS_WRITE_ENABLED) { |
| 527 | hwaddr abs_addr = memory_region_to_absolute_addr(mr, addr); |
Hollis Blanchard | 5a68be9 | 2016-03-02 12:12:54 -0800 | [diff] [blame] | 528 | trace_memory_region_ops_write(get_cpu_index(), mr, abs_addr, tmp, size); |
Hollis Blanchard | 23d92d6 | 2016-02-08 16:03:04 -0800 | [diff] [blame] | 529 | } |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 530 | return mr->ops->write_with_attrs(mr->opaque, addr, tmp, size, attrs); |
| 531 | } |
| 532 | |
| 533 | static MemTxResult access_with_adjusted_size(hwaddr addr, |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 534 | uint64_t *value, |
| 535 | unsigned size, |
| 536 | unsigned access_size_min, |
| 537 | unsigned access_size_max, |
KONRAD Frederic | 05e015f | 2017-09-21 12:04:20 +0200 | [diff] [blame] | 538 | MemTxResult (*access_fn) |
| 539 | (MemoryRegion *mr, |
| 540 | hwaddr addr, |
| 541 | uint64_t *value, |
| 542 | unsigned size, |
Philippe Mathieu-Daudé | 98f52cd | 2018-09-27 02:24:16 +0200 | [diff] [blame] | 543 | signed shift, |
KONRAD Frederic | 05e015f | 2017-09-21 12:04:20 +0200 | [diff] [blame] | 544 | uint64_t mask, |
| 545 | MemTxAttrs attrs), |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 546 | MemoryRegion *mr, |
| 547 | MemTxAttrs attrs) |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 548 | { |
| 549 | uint64_t access_mask; |
| 550 | unsigned access_size; |
| 551 | unsigned i; |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 552 | MemTxResult r = MEMTX_OK; |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 553 | |
| 554 | if (!access_size_min) { |
| 555 | access_size_min = 1; |
| 556 | } |
| 557 | if (!access_size_max) { |
| 558 | access_size_max = 4; |
| 559 | } |
Paolo Bonzini | ce5d2f3 | 2013-05-24 17:45:48 +0200 | [diff] [blame] | 560 | |
| 561 | /* FIXME: support unaligned access? */ |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 562 | access_size = MAX(MIN(size, access_size_max), access_size_min); |
Philippe Mathieu-Daudé | 36960b4 | 2018-09-27 02:24:14 +0200 | [diff] [blame] | 563 | access_mask = MAKE_64BIT_MASK(0, access_size * 8); |
Paolo Bonzini | e7342aa | 2013-07-22 15:54:37 +0200 | [diff] [blame] | 564 | if (memory_region_big_endian(mr)) { |
| 565 | for (i = 0; i < size; i += access_size) { |
KONRAD Frederic | 05e015f | 2017-09-21 12:04:20 +0200 | [diff] [blame] | 566 | r |= access_fn(mr, addr + i, value, access_size, |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 567 | (size - access_size - i) * 8, access_mask, attrs); |
Paolo Bonzini | e7342aa | 2013-07-22 15:54:37 +0200 | [diff] [blame] | 568 | } |
| 569 | } else { |
| 570 | for (i = 0; i < size; i += access_size) { |
KONRAD Frederic | 05e015f | 2017-09-21 12:04:20 +0200 | [diff] [blame] | 571 | r |= access_fn(mr, addr + i, value, access_size, i * 8, |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 572 | access_mask, attrs); |
Paolo Bonzini | e7342aa | 2013-07-22 15:54:37 +0200 | [diff] [blame] | 573 | } |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 574 | } |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 575 | return r; |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 576 | } |
| 577 | |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 578 | static AddressSpace *memory_region_to_address_space(MemoryRegion *mr) |
| 579 | { |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 580 | AddressSpace *as; |
| 581 | |
Paolo Bonzini | feca4ac | 2014-06-11 11:18:09 +0200 | [diff] [blame] | 582 | while (mr->container) { |
| 583 | mr = mr->container; |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 584 | } |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 585 | QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) { |
| 586 | if (mr == as->root) { |
| 587 | return as; |
| 588 | } |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 589 | } |
Igor Mammedov | eed2bac | 2014-06-02 15:25:06 +0200 | [diff] [blame] | 590 | return NULL; |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 591 | } |
| 592 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 593 | /* Render a memory region into the global view. Ranges in @view obscure |
| 594 | * ranges in @mr. |
| 595 | */ |
| 596 | static void render_memory_region(FlatView *view, |
| 597 | MemoryRegion *mr, |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 598 | Int128 base, |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 599 | AddrRange clip, |
Marc-André Lureau | c26763f | 2018-10-03 15:44:52 +0400 | [diff] [blame] | 600 | bool readonly, |
| 601 | bool nonvolatile) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 602 | { |
| 603 | MemoryRegion *subregion; |
| 604 | unsigned i; |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 605 | hwaddr offset_in_region; |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 606 | Int128 remain; |
| 607 | Int128 now; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 608 | FlatRange fr; |
| 609 | AddrRange tmp; |
| 610 | |
Avi Kivity | 6bba19b | 2011-09-14 11:54:58 +0300 | [diff] [blame] | 611 | if (!mr->enabled) { |
| 612 | return; |
| 613 | } |
| 614 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 615 | int128_addto(&base, int128_make64(mr->addr)); |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 616 | readonly |= mr->readonly; |
Marc-André Lureau | c26763f | 2018-10-03 15:44:52 +0400 | [diff] [blame] | 617 | nonvolatile |= mr->nonvolatile; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 618 | |
| 619 | tmp = addrrange_make(base, mr->size); |
| 620 | |
| 621 | if (!addrrange_intersects(tmp, clip)) { |
| 622 | return; |
| 623 | } |
| 624 | |
| 625 | clip = addrrange_intersection(tmp, clip); |
| 626 | |
| 627 | if (mr->alias) { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 628 | int128_subfrom(&base, int128_make64(mr->alias->addr)); |
| 629 | int128_subfrom(&base, int128_make64(mr->alias_offset)); |
Marc-André Lureau | c26763f | 2018-10-03 15:44:52 +0400 | [diff] [blame] | 630 | render_memory_region(view, mr->alias, base, clip, |
| 631 | readonly, nonvolatile); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 632 | return; |
| 633 | } |
| 634 | |
| 635 | /* Render subregions in priority order. */ |
| 636 | QTAILQ_FOREACH(subregion, &mr->subregions, subregions_link) { |
Marc-André Lureau | c26763f | 2018-10-03 15:44:52 +0400 | [diff] [blame] | 637 | render_memory_region(view, subregion, base, clip, |
| 638 | readonly, nonvolatile); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 639 | } |
| 640 | |
Avi Kivity | 14a3c10 | 2011-07-26 14:26:06 +0300 | [diff] [blame] | 641 | if (!mr->terminates) { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 642 | return; |
| 643 | } |
| 644 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 645 | offset_in_region = int128_get64(int128_sub(clip.start, base)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 646 | base = clip.start; |
| 647 | remain = clip.size; |
| 648 | |
Peter Crosthwaite | 2eb74e1 | 2013-06-03 15:33:29 +1000 | [diff] [blame] | 649 | fr.mr = mr; |
Paolo Bonzini | 6f6a5ef | 2015-03-23 10:57:21 +0100 | [diff] [blame] | 650 | fr.dirty_log_mask = memory_region_get_dirty_log_mask(mr); |
Paolo Bonzini | b138e65 | 2016-05-24 21:26:28 +0200 | [diff] [blame] | 651 | fr.romd_mode = mr->romd_mode; |
Peter Crosthwaite | 2eb74e1 | 2013-06-03 15:33:29 +1000 | [diff] [blame] | 652 | fr.readonly = readonly; |
Marc-André Lureau | c26763f | 2018-10-03 15:44:52 +0400 | [diff] [blame] | 653 | fr.nonvolatile = nonvolatile; |
Paolo Bonzini | 3ac7d43 | 2018-11-28 17:28:45 +0100 | [diff] [blame] | 654 | fr.has_coalesced_range = 0; |
Peter Crosthwaite | 2eb74e1 | 2013-06-03 15:33:29 +1000 | [diff] [blame] | 655 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 656 | /* Render the region itself into any gaps left by the current view. */ |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 657 | for (i = 0; i < view->nr && int128_nz(remain); ++i) { |
| 658 | if (int128_ge(base, addrrange_end(view->ranges[i].addr))) { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 659 | continue; |
| 660 | } |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 661 | if (int128_lt(base, view->ranges[i].addr.start)) { |
| 662 | now = int128_min(remain, |
| 663 | int128_sub(view->ranges[i].addr.start, base)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 664 | fr.offset_in_region = offset_in_region; |
| 665 | fr.addr = addrrange_make(base, now); |
| 666 | flatview_insert(view, i, &fr); |
| 667 | ++i; |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 668 | int128_addto(&base, now); |
| 669 | offset_in_region += int128_get64(now); |
| 670 | int128_subfrom(&remain, now); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 671 | } |
Avi Kivity | d26a8ca | 2012-10-29 18:22:36 +0200 | [diff] [blame] | 672 | now = int128_sub(int128_min(int128_add(base, remain), |
| 673 | addrrange_end(view->ranges[i].addr)), |
| 674 | base); |
| 675 | int128_addto(&base, now); |
| 676 | offset_in_region += int128_get64(now); |
| 677 | int128_subfrom(&remain, now); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 678 | } |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 679 | if (int128_nz(remain)) { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 680 | fr.offset_in_region = offset_in_region; |
| 681 | fr.addr = addrrange_make(base, remain); |
| 682 | flatview_insert(view, i, &fr); |
| 683 | } |
| 684 | } |
| 685 | |
Alexey Kardashevskiy | 89c177b | 2017-09-21 18:51:01 +1000 | [diff] [blame] | 686 | static MemoryRegion *memory_region_get_flatview_root(MemoryRegion *mr) |
| 687 | { |
Paolo Bonzini | e673ba9 | 2017-09-21 12:28:16 +0200 | [diff] [blame] | 688 | while (mr->enabled) { |
| 689 | if (mr->alias) { |
| 690 | if (!mr->alias_offset && int128_ge(mr->size, mr->alias->size)) { |
| 691 | /* The alias is included in its entirety. Use it as |
| 692 | * the "real" root, so that we can share more FlatViews. |
| 693 | */ |
| 694 | mr = mr->alias; |
| 695 | continue; |
| 696 | } |
| 697 | } else if (!mr->terminates) { |
| 698 | unsigned int found = 0; |
| 699 | MemoryRegion *child, *next = NULL; |
| 700 | QTAILQ_FOREACH(child, &mr->subregions, subregions_link) { |
| 701 | if (child->enabled) { |
| 702 | if (++found > 1) { |
| 703 | next = NULL; |
| 704 | break; |
| 705 | } |
| 706 | if (!child->addr && int128_ge(mr->size, child->size)) { |
| 707 | /* A child is included in its entirety. If it's the only |
| 708 | * enabled one, use it in the hope of finding an alias down the |
| 709 | * way. This will also let us share FlatViews. |
| 710 | */ |
| 711 | next = child; |
| 712 | } |
| 713 | } |
| 714 | } |
Alexey Kardashevskiy | 092aa2f | 2017-09-21 18:51:07 +1000 | [diff] [blame] | 715 | if (found == 0) { |
| 716 | return NULL; |
| 717 | } |
Paolo Bonzini | e673ba9 | 2017-09-21 12:28:16 +0200 | [diff] [blame] | 718 | if (next) { |
| 719 | mr = next; |
| 720 | continue; |
| 721 | } |
| 722 | } |
| 723 | |
Alexey Kardashevskiy | 092aa2f | 2017-09-21 18:51:07 +1000 | [diff] [blame] | 724 | return mr; |
Alexey Kardashevskiy | 89c177b | 2017-09-21 18:51:01 +1000 | [diff] [blame] | 725 | } |
| 726 | |
Alexey Kardashevskiy | 092aa2f | 2017-09-21 18:51:07 +1000 | [diff] [blame] | 727 | return NULL; |
Alexey Kardashevskiy | 89c177b | 2017-09-21 18:51:01 +1000 | [diff] [blame] | 728 | } |
| 729 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 730 | /* Render a memory topology into a list of disjoint absolute ranges. */ |
Paolo Bonzini | a9a0c06 | 2013-05-06 10:29:07 +0200 | [diff] [blame] | 731 | static FlatView *generate_memory_topology(MemoryRegion *mr) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 732 | { |
Alexey Kardashevskiy | 9bf561e | 2017-09-21 18:51:02 +1000 | [diff] [blame] | 733 | int i; |
Paolo Bonzini | a9a0c06 | 2013-05-06 10:29:07 +0200 | [diff] [blame] | 734 | FlatView *view; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 735 | |
Alexey Kardashevskiy | 89c177b | 2017-09-21 18:51:01 +1000 | [diff] [blame] | 736 | view = flatview_new(mr); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 737 | |
Avi Kivity | 83f3c25 | 2012-10-07 12:59:55 +0200 | [diff] [blame] | 738 | if (mr) { |
Paolo Bonzini | a9a0c06 | 2013-05-06 10:29:07 +0200 | [diff] [blame] | 739 | render_memory_region(view, mr, int128_zero(), |
Marc-André Lureau | c26763f | 2018-10-03 15:44:52 +0400 | [diff] [blame] | 740 | addrrange_make(int128_zero(), int128_2_64()), |
| 741 | false, false); |
Avi Kivity | 83f3c25 | 2012-10-07 12:59:55 +0200 | [diff] [blame] | 742 | } |
Paolo Bonzini | a9a0c06 | 2013-05-06 10:29:07 +0200 | [diff] [blame] | 743 | flatview_simplify(view); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 744 | |
Alexey Kardashevskiy | 9bf561e | 2017-09-21 18:51:02 +1000 | [diff] [blame] | 745 | view->dispatch = address_space_dispatch_new(view); |
| 746 | for (i = 0; i < view->nr; i++) { |
| 747 | MemoryRegionSection mrs = |
| 748 | section_from_flat_range(&view->ranges[i], view); |
| 749 | flatview_add_to_dispatch(view, &mrs); |
| 750 | } |
| 751 | address_space_dispatch_compact(view->dispatch); |
Alexey Kardashevskiy | 967dc9b | 2017-09-21 18:51:04 +1000 | [diff] [blame] | 752 | g_hash_table_replace(flat_views, mr, view); |
Alexey Kardashevskiy | 9bf561e | 2017-09-21 18:51:02 +1000 | [diff] [blame] | 753 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 754 | return view; |
| 755 | } |
| 756 | |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 757 | static void address_space_add_del_ioeventfds(AddressSpace *as, |
| 758 | MemoryRegionIoeventfd *fds_new, |
| 759 | unsigned fds_new_nb, |
| 760 | MemoryRegionIoeventfd *fds_old, |
| 761 | unsigned fds_old_nb) |
| 762 | { |
| 763 | unsigned iold, inew; |
Avi Kivity | 80a1ea3 | 2012-02-08 16:39:06 +0200 | [diff] [blame] | 764 | MemoryRegionIoeventfd *fd; |
| 765 | MemoryRegionSection section; |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 766 | |
| 767 | /* Generate a symmetric difference of the old and new fd sets, adding |
| 768 | * and deleting as necessary. |
| 769 | */ |
| 770 | |
| 771 | iold = inew = 0; |
| 772 | while (iold < fds_old_nb || inew < fds_new_nb) { |
| 773 | if (iold < fds_old_nb |
| 774 | && (inew == fds_new_nb |
Tristan Burgess | 73bb753 | 2018-05-28 23:04:45 -0400 | [diff] [blame] | 775 | || memory_region_ioeventfd_before(&fds_old[iold], |
| 776 | &fds_new[inew]))) { |
Avi Kivity | 80a1ea3 | 2012-02-08 16:39:06 +0200 | [diff] [blame] | 777 | fd = &fds_old[iold]; |
| 778 | section = (MemoryRegionSection) { |
Alexey Kardashevskiy | 1662068 | 2017-09-21 18:50:58 +1000 | [diff] [blame] | 779 | .fv = address_space_to_flatview(as), |
Avi Kivity | 80a1ea3 | 2012-02-08 16:39:06 +0200 | [diff] [blame] | 780 | .offset_within_address_space = int128_get64(fd->addr.start), |
Paolo Bonzini | 052e87b | 2013-05-27 10:08:27 +0200 | [diff] [blame] | 781 | .size = fd->addr.size, |
Avi Kivity | 80a1ea3 | 2012-02-08 16:39:06 +0200 | [diff] [blame] | 782 | }; |
Paolo Bonzini | 9a54635 | 2016-09-22 16:23:06 +0200 | [diff] [blame] | 783 | MEMORY_LISTENER_CALL(as, eventfd_del, Forward, §ion, |
Paolo Bonzini | 753d5e1 | 2012-07-05 17:16:27 +0200 | [diff] [blame] | 784 | fd->match_data, fd->data, fd->e); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 785 | ++iold; |
| 786 | } else if (inew < fds_new_nb |
| 787 | && (iold == fds_old_nb |
Tristan Burgess | 73bb753 | 2018-05-28 23:04:45 -0400 | [diff] [blame] | 788 | || memory_region_ioeventfd_before(&fds_new[inew], |
| 789 | &fds_old[iold]))) { |
Avi Kivity | 80a1ea3 | 2012-02-08 16:39:06 +0200 | [diff] [blame] | 790 | fd = &fds_new[inew]; |
| 791 | section = (MemoryRegionSection) { |
Alexey Kardashevskiy | 1662068 | 2017-09-21 18:50:58 +1000 | [diff] [blame] | 792 | .fv = address_space_to_flatview(as), |
Avi Kivity | 80a1ea3 | 2012-02-08 16:39:06 +0200 | [diff] [blame] | 793 | .offset_within_address_space = int128_get64(fd->addr.start), |
Paolo Bonzini | 052e87b | 2013-05-27 10:08:27 +0200 | [diff] [blame] | 794 | .size = fd->addr.size, |
Avi Kivity | 80a1ea3 | 2012-02-08 16:39:06 +0200 | [diff] [blame] | 795 | }; |
Paolo Bonzini | 9a54635 | 2016-09-22 16:23:06 +0200 | [diff] [blame] | 796 | MEMORY_LISTENER_CALL(as, eventfd_add, Reverse, §ion, |
Paolo Bonzini | 753d5e1 | 2012-07-05 17:16:27 +0200 | [diff] [blame] | 797 | fd->match_data, fd->data, fd->e); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 798 | ++inew; |
| 799 | } else { |
| 800 | ++iold; |
| 801 | ++inew; |
| 802 | } |
| 803 | } |
| 804 | } |
| 805 | |
Paolo Bonzini | 4856404 | 2018-03-18 18:26:36 +0100 | [diff] [blame] | 806 | FlatView *address_space_get_flatview(AddressSpace *as) |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 807 | { |
| 808 | FlatView *view; |
| 809 | |
Paolo Bonzini | 374f298 | 2013-05-17 12:37:03 +0200 | [diff] [blame] | 810 | rcu_read_lock(); |
Paolo Bonzini | 447b0d0 | 2017-09-21 14:32:47 +0200 | [diff] [blame] | 811 | do { |
Alexey Kardashevskiy | 1662068 | 2017-09-21 18:50:58 +1000 | [diff] [blame] | 812 | view = address_space_to_flatview(as); |
Paolo Bonzini | 447b0d0 | 2017-09-21 14:32:47 +0200 | [diff] [blame] | 813 | /* If somebody has replaced as->current_map concurrently, |
| 814 | * flatview_ref returns false. |
| 815 | */ |
| 816 | } while (!flatview_ref(view)); |
Paolo Bonzini | 374f298 | 2013-05-17 12:37:03 +0200 | [diff] [blame] | 817 | rcu_read_unlock(); |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 818 | return view; |
| 819 | } |
| 820 | |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 821 | static void address_space_update_ioeventfds(AddressSpace *as) |
| 822 | { |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 823 | FlatView *view; |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 824 | FlatRange *fr; |
| 825 | unsigned ioeventfd_nb = 0; |
| 826 | MemoryRegionIoeventfd *ioeventfds = NULL; |
| 827 | AddrRange tmp; |
| 828 | unsigned i; |
| 829 | |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 830 | view = address_space_get_flatview(as); |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 831 | FOR_EACH_FLAT_RANGE(fr, view) { |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 832 | for (i = 0; i < fr->mr->ioeventfd_nb; ++i) { |
| 833 | tmp = addrrange_shift(fr->mr->ioeventfds[i].addr, |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 834 | int128_sub(fr->addr.start, |
| 835 | int128_make64(fr->offset_in_region))); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 836 | if (addrrange_intersects(fr->addr, tmp)) { |
| 837 | ++ioeventfd_nb; |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 838 | ioeventfds = g_realloc(ioeventfds, |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 839 | ioeventfd_nb * sizeof(*ioeventfds)); |
| 840 | ioeventfds[ioeventfd_nb-1] = fr->mr->ioeventfds[i]; |
| 841 | ioeventfds[ioeventfd_nb-1].addr = tmp; |
| 842 | } |
| 843 | } |
| 844 | } |
| 845 | |
| 846 | address_space_add_del_ioeventfds(as, ioeventfds, ioeventfd_nb, |
| 847 | as->ioeventfds, as->ioeventfd_nb); |
| 848 | |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 849 | g_free(as->ioeventfds); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 850 | as->ioeventfds = ioeventfds; |
| 851 | as->ioeventfd_nb = ioeventfd_nb; |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 852 | flatview_unref(view); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 853 | } |
| 854 | |
Paolo Bonzini | 909bf76 | 2018-11-28 10:42:06 +0100 | [diff] [blame] | 855 | static void flat_range_coalesced_io_del(FlatRange *fr, AddressSpace *as) |
| 856 | { |
Paolo Bonzini | 1f7af80 | 2018-11-28 17:29:45 +0100 | [diff] [blame] | 857 | if (!fr->has_coalesced_range) { |
| 858 | return; |
| 859 | } |
| 860 | |
Paolo Bonzini | 3ac7d43 | 2018-11-28 17:28:45 +0100 | [diff] [blame] | 861 | if (--fr->has_coalesced_range > 0) { |
| 862 | return; |
| 863 | } |
| 864 | |
Paolo Bonzini | 909bf76 | 2018-11-28 10:42:06 +0100 | [diff] [blame] | 865 | MEMORY_LISTENER_UPDATE_REGION(fr, as, Reverse, coalesced_io_del, |
| 866 | int128_get64(fr->addr.start), |
| 867 | int128_get64(fr->addr.size)); |
| 868 | } |
| 869 | |
| 870 | static void flat_range_coalesced_io_add(FlatRange *fr, AddressSpace *as) |
| 871 | { |
| 872 | MemoryRegion *mr = fr->mr; |
| 873 | CoalescedMemoryRange *cmr; |
| 874 | AddrRange tmp; |
| 875 | |
Paolo Bonzini | 1f7af80 | 2018-11-28 17:29:45 +0100 | [diff] [blame] | 876 | if (QTAILQ_EMPTY(&mr->coalesced)) { |
| 877 | return; |
| 878 | } |
| 879 | |
Paolo Bonzini | 3ac7d43 | 2018-11-28 17:28:45 +0100 | [diff] [blame] | 880 | if (fr->has_coalesced_range++) { |
| 881 | return; |
| 882 | } |
| 883 | |
Paolo Bonzini | 909bf76 | 2018-11-28 10:42:06 +0100 | [diff] [blame] | 884 | QTAILQ_FOREACH(cmr, &mr->coalesced, link) { |
| 885 | tmp = addrrange_shift(cmr->addr, |
| 886 | int128_sub(fr->addr.start, |
| 887 | int128_make64(fr->offset_in_region))); |
| 888 | if (!addrrange_intersects(tmp, fr->addr)) { |
| 889 | continue; |
| 890 | } |
| 891 | tmp = addrrange_intersection(tmp, fr->addr); |
| 892 | MEMORY_LISTENER_UPDATE_REGION(fr, as, Forward, coalesced_io_add, |
| 893 | int128_get64(tmp.start), |
| 894 | int128_get64(tmp.size)); |
| 895 | } |
| 896 | } |
| 897 | |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 898 | static void address_space_update_topology_pass(AddressSpace *as, |
Paolo Bonzini | a9a0c06 | 2013-05-06 10:29:07 +0200 | [diff] [blame] | 899 | const FlatView *old_view, |
| 900 | const FlatView *new_view, |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 901 | bool adding) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 902 | { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 903 | unsigned iold, inew; |
| 904 | FlatRange *frold, *frnew; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 905 | |
| 906 | /* Generate a symmetric difference of the old and new memory maps. |
| 907 | * Kill ranges in the old map, and instantiate ranges in the new map. |
| 908 | */ |
| 909 | iold = inew = 0; |
Paolo Bonzini | a9a0c06 | 2013-05-06 10:29:07 +0200 | [diff] [blame] | 910 | while (iold < old_view->nr || inew < new_view->nr) { |
| 911 | if (iold < old_view->nr) { |
| 912 | frold = &old_view->ranges[iold]; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 913 | } else { |
| 914 | frold = NULL; |
| 915 | } |
Paolo Bonzini | a9a0c06 | 2013-05-06 10:29:07 +0200 | [diff] [blame] | 916 | if (inew < new_view->nr) { |
| 917 | frnew = &new_view->ranges[inew]; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 918 | } else { |
| 919 | frnew = NULL; |
| 920 | } |
| 921 | |
| 922 | if (frold |
| 923 | && (!frnew |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 924 | || int128_lt(frold->addr.start, frnew->addr.start) |
| 925 | || (int128_eq(frold->addr.start, frnew->addr.start) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 926 | && !flatrange_equal(frold, frnew)))) { |
Peter Crosthwaite | 41a6e47 | 2013-06-03 15:32:42 +1000 | [diff] [blame] | 927 | /* In old but not in new, or in both but attributes changed. */ |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 928 | |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 929 | if (!adding) { |
Paolo Bonzini | 3ac7d43 | 2018-11-28 17:28:45 +0100 | [diff] [blame] | 930 | flat_range_coalesced_io_del(frold, as); |
Avi Kivity | 72e22d2 | 2012-02-08 15:05:50 +0200 | [diff] [blame] | 931 | MEMORY_LISTENER_UPDATE_REGION(frold, as, Reverse, region_del); |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 932 | } |
| 933 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 934 | ++iold; |
| 935 | } else if (frold && frnew && flatrange_equal(frold, frnew)) { |
Peter Crosthwaite | 41a6e47 | 2013-06-03 15:32:42 +1000 | [diff] [blame] | 936 | /* In both and unchanged (except logging may have changed) */ |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 937 | |
Paolo Bonzini | 3ac7d43 | 2018-11-28 17:28:45 +0100 | [diff] [blame] | 938 | if (!adding) { |
| 939 | flat_range_coalesced_io_del(frold, as); |
| 940 | } else { |
Avi Kivity | 50c1e14 | 2012-02-08 21:36:02 +0200 | [diff] [blame] | 941 | MEMORY_LISTENER_UPDATE_REGION(frnew, as, Forward, region_nop); |
Paolo Bonzini | b2dfd71 | 2015-04-25 14:38:30 +0200 | [diff] [blame] | 942 | if (frnew->dirty_log_mask & ~frold->dirty_log_mask) { |
| 943 | MEMORY_LISTENER_UPDATE_REGION(frnew, as, Forward, log_start, |
| 944 | frold->dirty_log_mask, |
| 945 | frnew->dirty_log_mask); |
| 946 | } |
| 947 | if (frold->dirty_log_mask & ~frnew->dirty_log_mask) { |
| 948 | MEMORY_LISTENER_UPDATE_REGION(frnew, as, Reverse, log_stop, |
| 949 | frold->dirty_log_mask, |
| 950 | frnew->dirty_log_mask); |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 951 | } |
Paolo Bonzini | 3ac7d43 | 2018-11-28 17:28:45 +0100 | [diff] [blame] | 952 | flat_range_coalesced_io_add(frnew, as); |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 953 | } |
| 954 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 955 | ++iold; |
| 956 | ++inew; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 957 | } else { |
| 958 | /* In new */ |
| 959 | |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 960 | if (adding) { |
Avi Kivity | 72e22d2 | 2012-02-08 15:05:50 +0200 | [diff] [blame] | 961 | MEMORY_LISTENER_UPDATE_REGION(frnew, as, Forward, region_add); |
Paolo Bonzini | 3ac7d43 | 2018-11-28 17:28:45 +0100 | [diff] [blame] | 962 | flat_range_coalesced_io_add(frnew, as); |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 963 | } |
| 964 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 965 | ++inew; |
| 966 | } |
| 967 | } |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 968 | } |
| 969 | |
Alexey Kardashevskiy | 967dc9b | 2017-09-21 18:51:04 +1000 | [diff] [blame] | 970 | static void flatviews_init(void) |
| 971 | { |
Alexey Kardashevskiy | 092aa2f | 2017-09-21 18:51:07 +1000 | [diff] [blame] | 972 | static FlatView *empty_view; |
| 973 | |
Alexey Kardashevskiy | 967dc9b | 2017-09-21 18:51:04 +1000 | [diff] [blame] | 974 | if (flat_views) { |
| 975 | return; |
| 976 | } |
| 977 | |
| 978 | flat_views = g_hash_table_new_full(g_direct_hash, g_direct_equal, NULL, |
| 979 | (GDestroyNotify) flatview_unref); |
Alexey Kardashevskiy | 092aa2f | 2017-09-21 18:51:07 +1000 | [diff] [blame] | 980 | if (!empty_view) { |
| 981 | empty_view = generate_memory_topology(NULL); |
| 982 | /* We keep it alive forever in the global variable. */ |
| 983 | flatview_ref(empty_view); |
| 984 | } else { |
| 985 | g_hash_table_replace(flat_views, NULL, empty_view); |
| 986 | flatview_ref(empty_view); |
| 987 | } |
Alexey Kardashevskiy | 967dc9b | 2017-09-21 18:51:04 +1000 | [diff] [blame] | 988 | } |
| 989 | |
| 990 | static void flatviews_reset(void) |
| 991 | { |
| 992 | AddressSpace *as; |
| 993 | |
| 994 | if (flat_views) { |
| 995 | g_hash_table_unref(flat_views); |
| 996 | flat_views = NULL; |
| 997 | } |
| 998 | flatviews_init(); |
| 999 | |
| 1000 | /* Render unique FVs */ |
| 1001 | QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) { |
| 1002 | MemoryRegion *physmr = memory_region_get_flatview_root(as->root); |
| 1003 | |
| 1004 | if (g_hash_table_lookup(flat_views, physmr)) { |
| 1005 | continue; |
| 1006 | } |
| 1007 | |
| 1008 | generate_memory_topology(physmr); |
| 1009 | } |
| 1010 | } |
| 1011 | |
| 1012 | static void address_space_set_flatview(AddressSpace *as) |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 1013 | { |
Alexey Kardashevskiy | 67ace39 | 2017-09-21 18:51:05 +1000 | [diff] [blame] | 1014 | FlatView *old_view = address_space_to_flatview(as); |
Alexey Kardashevskiy | 967dc9b | 2017-09-21 18:51:04 +1000 | [diff] [blame] | 1015 | MemoryRegion *physmr = memory_region_get_flatview_root(as->root); |
| 1016 | FlatView *new_view = g_hash_table_lookup(flat_views, physmr); |
| 1017 | |
| 1018 | assert(new_view); |
| 1019 | |
Alexey Kardashevskiy | 67ace39 | 2017-09-21 18:51:05 +1000 | [diff] [blame] | 1020 | if (old_view == new_view) { |
| 1021 | return; |
| 1022 | } |
| 1023 | |
| 1024 | if (old_view) { |
| 1025 | flatview_ref(old_view); |
| 1026 | } |
| 1027 | |
Alexey Kardashevskiy | 967dc9b | 2017-09-21 18:51:04 +1000 | [diff] [blame] | 1028 | flatview_ref(new_view); |
Alexey Kardashevskiy | 9a62e24 | 2017-09-21 18:50:54 +1000 | [diff] [blame] | 1029 | |
| 1030 | if (!QTAILQ_EMPTY(&as->listeners)) { |
Alexey Kardashevskiy | 67ace39 | 2017-09-21 18:51:05 +1000 | [diff] [blame] | 1031 | FlatView tmpview = { .nr = 0 }, *old_view2 = old_view; |
| 1032 | |
| 1033 | if (!old_view2) { |
| 1034 | old_view2 = &tmpview; |
| 1035 | } |
| 1036 | address_space_update_topology_pass(as, old_view2, new_view, false); |
| 1037 | address_space_update_topology_pass(as, old_view2, new_view, true); |
Alexey Kardashevskiy | 9a62e24 | 2017-09-21 18:50:54 +1000 | [diff] [blame] | 1038 | } |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 1039 | |
Paolo Bonzini | 374f298 | 2013-05-17 12:37:03 +0200 | [diff] [blame] | 1040 | /* Writes are protected by the BQL. */ |
| 1041 | atomic_rcu_set(&as->current_map, new_view); |
Alexey Kardashevskiy | 67ace39 | 2017-09-21 18:51:05 +1000 | [diff] [blame] | 1042 | if (old_view) { |
| 1043 | flatview_unref(old_view); |
| 1044 | } |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 1045 | |
| 1046 | /* Note that all the old MemoryRegions are still alive up to this |
| 1047 | * point. This relieves most MemoryListeners from the need to |
| 1048 | * ref/unref the MemoryRegions they get---unless they use them |
| 1049 | * outside the iothread mutex, in which case precise reference |
| 1050 | * counting is necessary. |
| 1051 | */ |
Alexey Kardashevskiy | 67ace39 | 2017-09-21 18:51:05 +1000 | [diff] [blame] | 1052 | if (old_view) { |
| 1053 | flatview_unref(old_view); |
| 1054 | } |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1055 | } |
| 1056 | |
Alexey Kardashevskiy | 202fc01 | 2017-09-21 18:51:09 +1000 | [diff] [blame] | 1057 | static void address_space_update_topology(AddressSpace *as) |
| 1058 | { |
| 1059 | MemoryRegion *physmr = memory_region_get_flatview_root(as->root); |
| 1060 | |
| 1061 | flatviews_init(); |
| 1062 | if (!g_hash_table_lookup(flat_views, physmr)) { |
| 1063 | generate_memory_topology(physmr); |
| 1064 | } |
| 1065 | address_space_set_flatview(as); |
| 1066 | } |
| 1067 | |
Avi Kivity | 4ef4db8 | 2011-07-26 14:26:13 +0300 | [diff] [blame] | 1068 | void memory_region_transaction_begin(void) |
| 1069 | { |
Jan Kiszka | bb880de | 2012-08-23 13:02:32 +0200 | [diff] [blame] | 1070 | qemu_flush_coalesced_mmio_buffer(); |
Avi Kivity | 4ef4db8 | 2011-07-26 14:26:13 +0300 | [diff] [blame] | 1071 | ++memory_region_transaction_depth; |
| 1072 | } |
| 1073 | |
| 1074 | void memory_region_transaction_commit(void) |
| 1075 | { |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 1076 | AddressSpace *as; |
| 1077 | |
Avi Kivity | 4ef4db8 | 2011-07-26 14:26:13 +0300 | [diff] [blame] | 1078 | assert(memory_region_transaction_depth); |
Jan Kiszka | 8d04fb5 | 2017-02-23 18:29:11 +0000 | [diff] [blame] | 1079 | assert(qemu_mutex_iothread_locked()); |
| 1080 | |
Avi Kivity | 4ef4db8 | 2011-07-26 14:26:13 +0300 | [diff] [blame] | 1081 | --memory_region_transaction_depth; |
Gonglei | 4dc5615 | 2014-05-08 11:47:32 +0800 | [diff] [blame] | 1082 | if (!memory_region_transaction_depth) { |
| 1083 | if (memory_region_update_pending) { |
Alexey Kardashevskiy | 967dc9b | 2017-09-21 18:51:04 +1000 | [diff] [blame] | 1084 | flatviews_reset(); |
| 1085 | |
Gonglei | 4dc5615 | 2014-05-08 11:47:32 +0800 | [diff] [blame] | 1086 | MEMORY_LISTENER_CALL_GLOBAL(begin, Forward); |
Jan Kiszka | 02e2b95 | 2012-08-23 13:02:31 +0200 | [diff] [blame] | 1087 | |
Gonglei | 4dc5615 | 2014-05-08 11:47:32 +0800 | [diff] [blame] | 1088 | QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) { |
Alexey Kardashevskiy | 967dc9b | 2017-09-21 18:51:04 +1000 | [diff] [blame] | 1089 | address_space_set_flatview(as); |
Alexey Kardashevskiy | 0221848 | 2017-09-21 18:51:03 +1000 | [diff] [blame] | 1090 | address_space_update_ioeventfds(as); |
Gonglei | 4dc5615 | 2014-05-08 11:47:32 +0800 | [diff] [blame] | 1091 | } |
Xu, Anthony | ade9c1a | 2017-03-22 17:53:35 +0000 | [diff] [blame] | 1092 | memory_region_update_pending = false; |
linzhecheng | 0b15209 | 2018-01-14 20:55:19 +0800 | [diff] [blame] | 1093 | ioeventfd_update_pending = false; |
Gonglei | 4dc5615 | 2014-05-08 11:47:32 +0800 | [diff] [blame] | 1094 | MEMORY_LISTENER_CALL_GLOBAL(commit, Forward); |
| 1095 | } else if (ioeventfd_update_pending) { |
| 1096 | QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) { |
| 1097 | address_space_update_ioeventfds(as); |
| 1098 | } |
Xu, Anthony | ade9c1a | 2017-03-22 17:53:35 +0000 | [diff] [blame] | 1099 | ioeventfd_update_pending = false; |
Jan Kiszka | 02e2b95 | 2012-08-23 13:02:31 +0200 | [diff] [blame] | 1100 | } |
Gonglei | 4dc5615 | 2014-05-08 11:47:32 +0800 | [diff] [blame] | 1101 | } |
Avi Kivity | 4ef4db8 | 2011-07-26 14:26:13 +0300 | [diff] [blame] | 1102 | } |
| 1103 | |
Avi Kivity | 545e92e | 2011-08-08 19:58:48 +0300 | [diff] [blame] | 1104 | static void memory_region_destructor_none(MemoryRegion *mr) |
| 1105 | { |
| 1106 | } |
| 1107 | |
| 1108 | static void memory_region_destructor_ram(MemoryRegion *mr) |
| 1109 | { |
Fam Zheng | f1060c5 | 2016-03-01 14:18:22 +0800 | [diff] [blame] | 1110 | qemu_ram_free(mr->ram_block); |
Avi Kivity | 545e92e | 2011-08-08 19:58:48 +0300 | [diff] [blame] | 1111 | } |
| 1112 | |
Peter Crosthwaite | b4fefef | 2014-06-05 23:15:52 -0700 | [diff] [blame] | 1113 | static bool memory_region_need_escape(char c) |
| 1114 | { |
| 1115 | return c == '/' || c == '[' || c == '\\' || c == ']'; |
| 1116 | } |
| 1117 | |
| 1118 | static char *memory_region_escape_name(const char *name) |
| 1119 | { |
| 1120 | const char *p; |
| 1121 | char *escaped, *q; |
| 1122 | uint8_t c; |
| 1123 | size_t bytes = 0; |
| 1124 | |
| 1125 | for (p = name; *p; p++) { |
| 1126 | bytes += memory_region_need_escape(*p) ? 4 : 1; |
| 1127 | } |
| 1128 | if (bytes == p - name) { |
| 1129 | return g_memdup(name, bytes + 1); |
| 1130 | } |
| 1131 | |
| 1132 | escaped = g_malloc(bytes + 1); |
| 1133 | for (p = name, q = escaped; *p; p++) { |
| 1134 | c = *p; |
| 1135 | if (unlikely(memory_region_need_escape(c))) { |
| 1136 | *q++ = '\\'; |
| 1137 | *q++ = 'x'; |
| 1138 | *q++ = "0123456789abcdef"[c >> 4]; |
| 1139 | c = "0123456789abcdef"[c & 15]; |
| 1140 | } |
| 1141 | *q++ = c; |
| 1142 | } |
| 1143 | *q = 0; |
| 1144 | return escaped; |
| 1145 | } |
| 1146 | |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 1147 | static void memory_region_do_init(MemoryRegion *mr, |
| 1148 | Object *owner, |
| 1149 | const char *name, |
| 1150 | uint64_t size) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1151 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1152 | mr->size = int128_make64(size); |
| 1153 | if (size == UINT64_MAX) { |
| 1154 | mr->size = int128_2_64(); |
| 1155 | } |
Peter Maydell | 302fa28 | 2014-08-19 20:05:46 +0100 | [diff] [blame] | 1156 | mr->name = g_strdup(name); |
Paolo Bonzini | 612263c | 2015-12-09 11:44:25 +0100 | [diff] [blame] | 1157 | mr->owner = owner; |
Gonglei | 58eaa21 | 2016-02-22 16:34:55 +0800 | [diff] [blame] | 1158 | mr->ram_block = NULL; |
Peter Crosthwaite | b4fefef | 2014-06-05 23:15:52 -0700 | [diff] [blame] | 1159 | |
| 1160 | if (name) { |
Peter Crosthwaite | 843ef73 | 2014-08-19 23:56:26 -0700 | [diff] [blame] | 1161 | char *escaped_name = memory_region_escape_name(name); |
| 1162 | char *name_array = g_strdup_printf("%s[*]", escaped_name); |
Paolo Bonzini | 612263c | 2015-12-09 11:44:25 +0100 | [diff] [blame] | 1163 | |
| 1164 | if (!owner) { |
| 1165 | owner = container_get(qdev_get_machine(), "/unattached"); |
| 1166 | } |
| 1167 | |
Peter Crosthwaite | 843ef73 | 2014-08-19 23:56:26 -0700 | [diff] [blame] | 1168 | object_property_add_child(owner, name_array, OBJECT(mr), &error_abort); |
Peter Crosthwaite | b4fefef | 2014-06-05 23:15:52 -0700 | [diff] [blame] | 1169 | object_unref(OBJECT(mr)); |
Peter Crosthwaite | 843ef73 | 2014-08-19 23:56:26 -0700 | [diff] [blame] | 1170 | g_free(name_array); |
| 1171 | g_free(escaped_name); |
Peter Crosthwaite | b4fefef | 2014-06-05 23:15:52 -0700 | [diff] [blame] | 1172 | } |
| 1173 | } |
| 1174 | |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 1175 | void memory_region_init(MemoryRegion *mr, |
| 1176 | Object *owner, |
| 1177 | const char *name, |
| 1178 | uint64_t size) |
| 1179 | { |
| 1180 | object_initialize(mr, sizeof(*mr), TYPE_MEMORY_REGION); |
| 1181 | memory_region_do_init(mr, owner, name, size); |
| 1182 | } |
| 1183 | |
Eric Blake | d7bce99 | 2016-01-29 06:48:55 -0700 | [diff] [blame] | 1184 | static void memory_region_get_addr(Object *obj, Visitor *v, const char *name, |
| 1185 | void *opaque, Error **errp) |
Peter Crosthwaite | 409ddd0 | 2014-06-05 23:16:27 -0700 | [diff] [blame] | 1186 | { |
| 1187 | MemoryRegion *mr = MEMORY_REGION(obj); |
| 1188 | uint64_t value = mr->addr; |
| 1189 | |
Eric Blake | 51e72bc | 2016-01-29 06:48:54 -0700 | [diff] [blame] | 1190 | visit_type_uint64(v, name, &value, errp); |
Peter Crosthwaite | 409ddd0 | 2014-06-05 23:16:27 -0700 | [diff] [blame] | 1191 | } |
| 1192 | |
Eric Blake | d7bce99 | 2016-01-29 06:48:55 -0700 | [diff] [blame] | 1193 | static void memory_region_get_container(Object *obj, Visitor *v, |
| 1194 | const char *name, void *opaque, |
| 1195 | Error **errp) |
Peter Crosthwaite | 409ddd0 | 2014-06-05 23:16:27 -0700 | [diff] [blame] | 1196 | { |
| 1197 | MemoryRegion *mr = MEMORY_REGION(obj); |
| 1198 | gchar *path = (gchar *)""; |
| 1199 | |
| 1200 | if (mr->container) { |
| 1201 | path = object_get_canonical_path(OBJECT(mr->container)); |
| 1202 | } |
Eric Blake | 51e72bc | 2016-01-29 06:48:54 -0700 | [diff] [blame] | 1203 | visit_type_str(v, name, &path, errp); |
Peter Crosthwaite | 409ddd0 | 2014-06-05 23:16:27 -0700 | [diff] [blame] | 1204 | if (mr->container) { |
| 1205 | g_free(path); |
| 1206 | } |
| 1207 | } |
| 1208 | |
| 1209 | static Object *memory_region_resolve_container(Object *obj, void *opaque, |
| 1210 | const char *part) |
| 1211 | { |
| 1212 | MemoryRegion *mr = MEMORY_REGION(obj); |
| 1213 | |
| 1214 | return OBJECT(mr->container); |
| 1215 | } |
| 1216 | |
Eric Blake | d7bce99 | 2016-01-29 06:48:55 -0700 | [diff] [blame] | 1217 | static void memory_region_get_priority(Object *obj, Visitor *v, |
| 1218 | const char *name, void *opaque, |
| 1219 | Error **errp) |
Peter Crosthwaite | d33382d | 2014-06-05 23:17:01 -0700 | [diff] [blame] | 1220 | { |
| 1221 | MemoryRegion *mr = MEMORY_REGION(obj); |
| 1222 | int32_t value = mr->priority; |
| 1223 | |
Eric Blake | 51e72bc | 2016-01-29 06:48:54 -0700 | [diff] [blame] | 1224 | visit_type_int32(v, name, &value, errp); |
Peter Crosthwaite | d33382d | 2014-06-05 23:17:01 -0700 | [diff] [blame] | 1225 | } |
| 1226 | |
Eric Blake | d7bce99 | 2016-01-29 06:48:55 -0700 | [diff] [blame] | 1227 | static void memory_region_get_size(Object *obj, Visitor *v, const char *name, |
| 1228 | void *opaque, Error **errp) |
Peter Crosthwaite | 52aef7b | 2014-06-05 23:17:35 -0700 | [diff] [blame] | 1229 | { |
| 1230 | MemoryRegion *mr = MEMORY_REGION(obj); |
| 1231 | uint64_t value = memory_region_size(mr); |
| 1232 | |
Eric Blake | 51e72bc | 2016-01-29 06:48:54 -0700 | [diff] [blame] | 1233 | visit_type_uint64(v, name, &value, errp); |
Peter Crosthwaite | 52aef7b | 2014-06-05 23:17:35 -0700 | [diff] [blame] | 1234 | } |
| 1235 | |
Peter Crosthwaite | b4fefef | 2014-06-05 23:15:52 -0700 | [diff] [blame] | 1236 | static void memory_region_initfn(Object *obj) |
| 1237 | { |
| 1238 | MemoryRegion *mr = MEMORY_REGION(obj); |
Peter Crosthwaite | 409ddd0 | 2014-06-05 23:16:27 -0700 | [diff] [blame] | 1239 | ObjectProperty *op; |
Peter Crosthwaite | b4fefef | 2014-06-05 23:15:52 -0700 | [diff] [blame] | 1240 | |
| 1241 | mr->ops = &unassigned_mem_ops; |
| 1242 | mr->enabled = true; |
| 1243 | mr->romd_mode = true; |
Jan Kiszka | 196ea13 | 2015-06-18 18:47:20 +0200 | [diff] [blame] | 1244 | mr->global_locking = true; |
Peter Crosthwaite | b4fefef | 2014-06-05 23:15:52 -0700 | [diff] [blame] | 1245 | mr->destructor = memory_region_destructor_none; |
| 1246 | QTAILQ_INIT(&mr->subregions); |
| 1247 | QTAILQ_INIT(&mr->coalesced); |
Peter Crosthwaite | 409ddd0 | 2014-06-05 23:16:27 -0700 | [diff] [blame] | 1248 | |
| 1249 | op = object_property_add(OBJECT(mr), "container", |
| 1250 | "link<" TYPE_MEMORY_REGION ">", |
| 1251 | memory_region_get_container, |
| 1252 | NULL, /* memory_region_set_container */ |
| 1253 | NULL, NULL, &error_abort); |
| 1254 | op->resolve = memory_region_resolve_container; |
| 1255 | |
| 1256 | object_property_add(OBJECT(mr), "addr", "uint64", |
| 1257 | memory_region_get_addr, |
| 1258 | NULL, /* memory_region_set_addr */ |
| 1259 | NULL, NULL, &error_abort); |
Peter Crosthwaite | d33382d | 2014-06-05 23:17:01 -0700 | [diff] [blame] | 1260 | object_property_add(OBJECT(mr), "priority", "uint32", |
| 1261 | memory_region_get_priority, |
| 1262 | NULL, /* memory_region_set_priority */ |
| 1263 | NULL, NULL, &error_abort); |
Peter Crosthwaite | 52aef7b | 2014-06-05 23:17:35 -0700 | [diff] [blame] | 1264 | object_property_add(OBJECT(mr), "size", "uint64", |
| 1265 | memory_region_get_size, |
| 1266 | NULL, /* memory_region_set_size, */ |
| 1267 | NULL, NULL, &error_abort); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1268 | } |
| 1269 | |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 1270 | static void iommu_memory_region_initfn(Object *obj) |
| 1271 | { |
| 1272 | MemoryRegion *mr = MEMORY_REGION(obj); |
| 1273 | |
| 1274 | mr->is_iommu = true; |
| 1275 | } |
| 1276 | |
Paolo Bonzini | b018ddf | 2013-05-24 14:48:38 +0200 | [diff] [blame] | 1277 | static uint64_t unassigned_mem_read(void *opaque, hwaddr addr, |
| 1278 | unsigned size) |
| 1279 | { |
| 1280 | #ifdef DEBUG_UNASSIGNED |
| 1281 | printf("Unassigned mem read " TARGET_FMT_plx "\n", addr); |
| 1282 | #endif |
Andreas Färber | 4917cf4 | 2013-05-27 05:17:50 +0200 | [diff] [blame] | 1283 | if (current_cpu != NULL) { |
Peter Maydell | dbea78a | 2018-08-14 17:17:19 +0100 | [diff] [blame] | 1284 | bool is_exec = current_cpu->mem_io_access_type == MMU_INST_FETCH; |
| 1285 | cpu_unassigned_access(current_cpu, addr, false, is_exec, 0, size); |
Andreas Färber | c658b94 | 2013-05-27 06:49:53 +0200 | [diff] [blame] | 1286 | } |
Jan Kiszka | 68a7439 | 2013-09-02 18:43:31 +0200 | [diff] [blame] | 1287 | return 0; |
Paolo Bonzini | b018ddf | 2013-05-24 14:48:38 +0200 | [diff] [blame] | 1288 | } |
| 1289 | |
| 1290 | static void unassigned_mem_write(void *opaque, hwaddr addr, |
| 1291 | uint64_t val, unsigned size) |
| 1292 | { |
| 1293 | #ifdef DEBUG_UNASSIGNED |
| 1294 | printf("Unassigned mem write " TARGET_FMT_plx " = 0x%"PRIx64"\n", addr, val); |
| 1295 | #endif |
Andreas Färber | 4917cf4 | 2013-05-27 05:17:50 +0200 | [diff] [blame] | 1296 | if (current_cpu != NULL) { |
| 1297 | cpu_unassigned_access(current_cpu, addr, true, false, 0, size); |
Andreas Färber | c658b94 | 2013-05-27 06:49:53 +0200 | [diff] [blame] | 1298 | } |
Paolo Bonzini | b018ddf | 2013-05-24 14:48:38 +0200 | [diff] [blame] | 1299 | } |
| 1300 | |
Paolo Bonzini | d197063 | 2013-05-24 13:23:38 +0200 | [diff] [blame] | 1301 | static bool unassigned_mem_accepts(void *opaque, hwaddr addr, |
Peter Maydell | 8372d38 | 2018-05-31 14:50:52 +0100 | [diff] [blame] | 1302 | unsigned size, bool is_write, |
| 1303 | MemTxAttrs attrs) |
Paolo Bonzini | d197063 | 2013-05-24 13:23:38 +0200 | [diff] [blame] | 1304 | { |
| 1305 | return false; |
| 1306 | } |
| 1307 | |
| 1308 | const MemoryRegionOps unassigned_mem_ops = { |
| 1309 | .valid.accepts = unassigned_mem_accepts, |
| 1310 | .endianness = DEVICE_NATIVE_ENDIAN, |
| 1311 | }; |
| 1312 | |
Alex Williamson | 4a2e242 | 2016-10-31 09:53:03 -0600 | [diff] [blame] | 1313 | static uint64_t memory_region_ram_device_read(void *opaque, |
| 1314 | hwaddr addr, unsigned size) |
| 1315 | { |
| 1316 | MemoryRegion *mr = opaque; |
| 1317 | uint64_t data = (uint64_t)~0; |
| 1318 | |
| 1319 | switch (size) { |
| 1320 | case 1: |
| 1321 | data = *(uint8_t *)(mr->ram_block->host + addr); |
| 1322 | break; |
| 1323 | case 2: |
| 1324 | data = *(uint16_t *)(mr->ram_block->host + addr); |
| 1325 | break; |
| 1326 | case 4: |
| 1327 | data = *(uint32_t *)(mr->ram_block->host + addr); |
| 1328 | break; |
| 1329 | case 8: |
| 1330 | data = *(uint64_t *)(mr->ram_block->host + addr); |
| 1331 | break; |
| 1332 | } |
| 1333 | |
| 1334 | trace_memory_region_ram_device_read(get_cpu_index(), mr, addr, data, size); |
| 1335 | |
| 1336 | return data; |
| 1337 | } |
| 1338 | |
| 1339 | static void memory_region_ram_device_write(void *opaque, hwaddr addr, |
| 1340 | uint64_t data, unsigned size) |
| 1341 | { |
| 1342 | MemoryRegion *mr = opaque; |
| 1343 | |
| 1344 | trace_memory_region_ram_device_write(get_cpu_index(), mr, addr, data, size); |
| 1345 | |
| 1346 | switch (size) { |
| 1347 | case 1: |
| 1348 | *(uint8_t *)(mr->ram_block->host + addr) = (uint8_t)data; |
| 1349 | break; |
| 1350 | case 2: |
| 1351 | *(uint16_t *)(mr->ram_block->host + addr) = (uint16_t)data; |
| 1352 | break; |
| 1353 | case 4: |
| 1354 | *(uint32_t *)(mr->ram_block->host + addr) = (uint32_t)data; |
| 1355 | break; |
| 1356 | case 8: |
| 1357 | *(uint64_t *)(mr->ram_block->host + addr) = data; |
| 1358 | break; |
| 1359 | } |
| 1360 | } |
| 1361 | |
| 1362 | static const MemoryRegionOps ram_device_mem_ops = { |
| 1363 | .read = memory_region_ram_device_read, |
| 1364 | .write = memory_region_ram_device_write, |
Yongji Xie | c99a29e | 2017-02-27 12:52:44 +0800 | [diff] [blame] | 1365 | .endianness = DEVICE_HOST_ENDIAN, |
Alex Williamson | 4a2e242 | 2016-10-31 09:53:03 -0600 | [diff] [blame] | 1366 | .valid = { |
| 1367 | .min_access_size = 1, |
| 1368 | .max_access_size = 8, |
| 1369 | .unaligned = true, |
| 1370 | }, |
| 1371 | .impl = { |
| 1372 | .min_access_size = 1, |
| 1373 | .max_access_size = 8, |
| 1374 | .unaligned = true, |
| 1375 | }, |
| 1376 | }; |
| 1377 | |
Paolo Bonzini | d270203 | 2013-05-24 11:55:06 +0200 | [diff] [blame] | 1378 | bool memory_region_access_valid(MemoryRegion *mr, |
| 1379 | hwaddr addr, |
| 1380 | unsigned size, |
Peter Maydell | 6d7b9a6 | 2018-05-31 14:50:52 +0100 | [diff] [blame] | 1381 | bool is_write, |
| 1382 | MemTxAttrs attrs) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1383 | { |
Paolo Bonzini | a014ed0 | 2013-05-24 17:48:52 +0200 | [diff] [blame] | 1384 | int access_size_min, access_size_max; |
| 1385 | int access_size, i; |
Avi Kivity | 897fa7c | 2011-11-13 13:05:27 +0200 | [diff] [blame] | 1386 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1387 | if (!mr->ops->valid.unaligned && (addr & (size - 1))) { |
| 1388 | return false; |
| 1389 | } |
| 1390 | |
Paolo Bonzini | a014ed0 | 2013-05-24 17:48:52 +0200 | [diff] [blame] | 1391 | if (!mr->ops->valid.accepts) { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1392 | return true; |
| 1393 | } |
| 1394 | |
Paolo Bonzini | a014ed0 | 2013-05-24 17:48:52 +0200 | [diff] [blame] | 1395 | access_size_min = mr->ops->valid.min_access_size; |
| 1396 | if (!mr->ops->valid.min_access_size) { |
| 1397 | access_size_min = 1; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1398 | } |
Paolo Bonzini | a014ed0 | 2013-05-24 17:48:52 +0200 | [diff] [blame] | 1399 | |
| 1400 | access_size_max = mr->ops->valid.max_access_size; |
| 1401 | if (!mr->ops->valid.max_access_size) { |
| 1402 | access_size_max = 4; |
| 1403 | } |
| 1404 | |
| 1405 | access_size = MAX(MIN(size, access_size_max), access_size_min); |
| 1406 | for (i = 0; i < size; i += access_size) { |
| 1407 | if (!mr->ops->valid.accepts(mr->opaque, addr + i, access_size, |
Peter Maydell | 8372d38 | 2018-05-31 14:50:52 +0100 | [diff] [blame] | 1408 | is_write, attrs)) { |
Paolo Bonzini | a014ed0 | 2013-05-24 17:48:52 +0200 | [diff] [blame] | 1409 | return false; |
| 1410 | } |
| 1411 | } |
| 1412 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1413 | return true; |
| 1414 | } |
| 1415 | |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 1416 | static MemTxResult memory_region_dispatch_read1(MemoryRegion *mr, |
| 1417 | hwaddr addr, |
| 1418 | uint64_t *pval, |
| 1419 | unsigned size, |
| 1420 | MemTxAttrs attrs) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1421 | { |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 1422 | *pval = 0; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1423 | |
Paolo Bonzini | ce5d2f3 | 2013-05-24 17:45:48 +0200 | [diff] [blame] | 1424 | if (mr->ops->read) { |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 1425 | return access_with_adjusted_size(addr, pval, size, |
| 1426 | mr->ops->impl.min_access_size, |
| 1427 | mr->ops->impl.max_access_size, |
| 1428 | memory_region_read_accessor, |
| 1429 | mr, attrs); |
Peter Maydell | 62a0db9 | 2018-08-24 18:04:20 +0100 | [diff] [blame] | 1430 | } else { |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 1431 | return access_with_adjusted_size(addr, pval, size, |
| 1432 | mr->ops->impl.min_access_size, |
| 1433 | mr->ops->impl.max_access_size, |
| 1434 | memory_region_read_with_attrs_accessor, |
| 1435 | mr, attrs); |
Avi Kivity | 74901c3 | 2011-07-26 14:26:10 +0300 | [diff] [blame] | 1436 | } |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1437 | } |
| 1438 | |
Peter Maydell | 3b64349 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 1439 | MemTxResult memory_region_dispatch_read(MemoryRegion *mr, |
| 1440 | hwaddr addr, |
| 1441 | uint64_t *pval, |
| 1442 | unsigned size, |
| 1443 | MemTxAttrs attrs) |
Avi Kivity | a621f38 | 2012-01-02 13:12:08 +0200 | [diff] [blame] | 1444 | { |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 1445 | MemTxResult r; |
| 1446 | |
Peter Maydell | 6d7b9a6 | 2018-05-31 14:50:52 +0100 | [diff] [blame] | 1447 | if (!memory_region_access_valid(mr, addr, size, false, attrs)) { |
Paolo Bonzini | 791af8c | 2013-05-24 16:10:39 +0200 | [diff] [blame] | 1448 | *pval = unassigned_mem_read(mr, addr, size); |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 1449 | return MEMTX_DECODE_ERROR; |
Paolo Bonzini | 791af8c | 2013-05-24 16:10:39 +0200 | [diff] [blame] | 1450 | } |
Avi Kivity | a621f38 | 2012-01-02 13:12:08 +0200 | [diff] [blame] | 1451 | |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 1452 | r = memory_region_dispatch_read1(mr, addr, pval, size, attrs); |
Paolo Bonzini | 791af8c | 2013-05-24 16:10:39 +0200 | [diff] [blame] | 1453 | adjust_endianness(mr, pval, size); |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 1454 | return r; |
Avi Kivity | a621f38 | 2012-01-02 13:12:08 +0200 | [diff] [blame] | 1455 | } |
| 1456 | |
Pavel Fedin | 8c56c1a | 2015-11-20 12:37:16 +0300 | [diff] [blame] | 1457 | /* Return true if an eventfd was signalled */ |
| 1458 | static bool memory_region_dispatch_write_eventfds(MemoryRegion *mr, |
| 1459 | hwaddr addr, |
| 1460 | uint64_t data, |
| 1461 | unsigned size, |
| 1462 | MemTxAttrs attrs) |
| 1463 | { |
| 1464 | MemoryRegionIoeventfd ioeventfd = { |
| 1465 | .addr = addrrange_make(int128_make64(addr), int128_make64(size)), |
| 1466 | .data = data, |
| 1467 | }; |
| 1468 | unsigned i; |
| 1469 | |
| 1470 | for (i = 0; i < mr->ioeventfd_nb; i++) { |
| 1471 | ioeventfd.match_data = mr->ioeventfds[i].match_data; |
| 1472 | ioeventfd.e = mr->ioeventfds[i].e; |
| 1473 | |
Tristan Burgess | 73bb753 | 2018-05-28 23:04:45 -0400 | [diff] [blame] | 1474 | if (memory_region_ioeventfd_equal(&ioeventfd, &mr->ioeventfds[i])) { |
Pavel Fedin | 8c56c1a | 2015-11-20 12:37:16 +0300 | [diff] [blame] | 1475 | event_notifier_set(ioeventfd.e); |
| 1476 | return true; |
| 1477 | } |
| 1478 | } |
| 1479 | |
| 1480 | return false; |
| 1481 | } |
| 1482 | |
Peter Maydell | 3b64349 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 1483 | MemTxResult memory_region_dispatch_write(MemoryRegion *mr, |
| 1484 | hwaddr addr, |
| 1485 | uint64_t data, |
| 1486 | unsigned size, |
| 1487 | MemTxAttrs attrs) |
Avi Kivity | a621f38 | 2012-01-02 13:12:08 +0200 | [diff] [blame] | 1488 | { |
Peter Maydell | 6d7b9a6 | 2018-05-31 14:50:52 +0100 | [diff] [blame] | 1489 | if (!memory_region_access_valid(mr, addr, size, true, attrs)) { |
Paolo Bonzini | b018ddf | 2013-05-24 14:48:38 +0200 | [diff] [blame] | 1490 | unassigned_mem_write(mr, addr, data, size); |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 1491 | return MEMTX_DECODE_ERROR; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1492 | } |
| 1493 | |
Avi Kivity | a621f38 | 2012-01-02 13:12:08 +0200 | [diff] [blame] | 1494 | adjust_endianness(mr, &data, size); |
| 1495 | |
Pavel Fedin | 8c56c1a | 2015-11-20 12:37:16 +0300 | [diff] [blame] | 1496 | if ((!kvm_eventfds_enabled()) && |
| 1497 | memory_region_dispatch_write_eventfds(mr, addr, data, size, attrs)) { |
| 1498 | return MEMTX_OK; |
| 1499 | } |
| 1500 | |
Paolo Bonzini | ce5d2f3 | 2013-05-24 17:45:48 +0200 | [diff] [blame] | 1501 | if (mr->ops->write) { |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 1502 | return access_with_adjusted_size(addr, &data, size, |
| 1503 | mr->ops->impl.min_access_size, |
| 1504 | mr->ops->impl.max_access_size, |
| 1505 | memory_region_write_accessor, mr, |
| 1506 | attrs); |
Peter Maydell | 62a0db9 | 2018-08-24 18:04:20 +0100 | [diff] [blame] | 1507 | } else { |
Peter Maydell | cc05c43 | 2015-04-26 16:49:23 +0100 | [diff] [blame] | 1508 | return |
| 1509 | access_with_adjusted_size(addr, &data, size, |
| 1510 | mr->ops->impl.min_access_size, |
| 1511 | mr->ops->impl.max_access_size, |
| 1512 | memory_region_write_with_attrs_accessor, |
| 1513 | mr, attrs); |
Avi Kivity | 74901c3 | 2011-07-26 14:26:10 +0300 | [diff] [blame] | 1514 | } |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1515 | } |
| 1516 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1517 | void memory_region_init_io(MemoryRegion *mr, |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 1518 | Object *owner, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1519 | const MemoryRegionOps *ops, |
| 1520 | void *opaque, |
| 1521 | const char *name, |
| 1522 | uint64_t size) |
| 1523 | { |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 1524 | memory_region_init(mr, owner, name, size); |
Pavel Fedin | 6d6d2ab | 2015-08-13 11:26:21 +0100 | [diff] [blame] | 1525 | mr->ops = ops ? ops : &unassigned_mem_ops; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1526 | mr->opaque = opaque; |
Avi Kivity | 14a3c10 | 2011-07-26 14:26:06 +0300 | [diff] [blame] | 1527 | mr->terminates = true; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1528 | } |
| 1529 | |
Peter Maydell | 1cfe48c | 2017-07-07 15:42:49 +0100 | [diff] [blame] | 1530 | void memory_region_init_ram_nomigrate(MemoryRegion *mr, |
| 1531 | Object *owner, |
| 1532 | const char *name, |
| 1533 | uint64_t size, |
| 1534 | Error **errp) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1535 | { |
Marcel Apfelbaum | 06329cc | 2017-12-13 16:37:37 +0200 | [diff] [blame] | 1536 | memory_region_init_ram_shared_nomigrate(mr, owner, name, size, false, errp); |
| 1537 | } |
| 1538 | |
| 1539 | void memory_region_init_ram_shared_nomigrate(MemoryRegion *mr, |
| 1540 | Object *owner, |
| 1541 | const char *name, |
| 1542 | uint64_t size, |
| 1543 | bool share, |
| 1544 | Error **errp) |
| 1545 | { |
Igor Mammedov | 1cd3d49 | 2018-09-04 14:39:37 +0200 | [diff] [blame] | 1546 | Error *err = NULL; |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 1547 | memory_region_init(mr, owner, name, size); |
Avi Kivity | 8ea9252 | 2011-12-08 15:58:43 +0200 | [diff] [blame] | 1548 | mr->ram = true; |
Avi Kivity | 14a3c10 | 2011-07-26 14:26:06 +0300 | [diff] [blame] | 1549 | mr->terminates = true; |
Avi Kivity | 545e92e | 2011-08-08 19:58:48 +0300 | [diff] [blame] | 1550 | mr->destructor = memory_region_destructor_ram; |
Igor Mammedov | 1cd3d49 | 2018-09-04 14:39:37 +0200 | [diff] [blame] | 1551 | mr->ram_block = qemu_ram_alloc(size, share, mr, &err); |
Paolo Bonzini | 677e780 | 2015-03-23 10:53:21 +0100 | [diff] [blame] | 1552 | mr->dirty_log_mask = tcg_enabled() ? (1 << DIRTY_MEMORY_CODE) : 0; |
Igor Mammedov | 1cd3d49 | 2018-09-04 14:39:37 +0200 | [diff] [blame] | 1553 | if (err) { |
| 1554 | mr->size = int128_zero(); |
| 1555 | object_unparent(OBJECT(mr)); |
| 1556 | error_propagate(errp, err); |
| 1557 | } |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1558 | } |
| 1559 | |
Michael S. Tsirkin | 60786ef | 2014-11-17 00:24:36 +0200 | [diff] [blame] | 1560 | void memory_region_init_resizeable_ram(MemoryRegion *mr, |
| 1561 | Object *owner, |
| 1562 | const char *name, |
| 1563 | uint64_t size, |
| 1564 | uint64_t max_size, |
| 1565 | void (*resized)(const char*, |
| 1566 | uint64_t length, |
| 1567 | void *host), |
| 1568 | Error **errp) |
| 1569 | { |
Igor Mammedov | 1cd3d49 | 2018-09-04 14:39:37 +0200 | [diff] [blame] | 1570 | Error *err = NULL; |
Michael S. Tsirkin | 60786ef | 2014-11-17 00:24:36 +0200 | [diff] [blame] | 1571 | memory_region_init(mr, owner, name, size); |
| 1572 | mr->ram = true; |
| 1573 | mr->terminates = true; |
| 1574 | mr->destructor = memory_region_destructor_ram; |
Fam Zheng | 8e41fb6 | 2016-03-01 14:18:21 +0800 | [diff] [blame] | 1575 | mr->ram_block = qemu_ram_alloc_resizeable(size, max_size, resized, |
Igor Mammedov | 1cd3d49 | 2018-09-04 14:39:37 +0200 | [diff] [blame] | 1576 | mr, &err); |
Paolo Bonzini | 677e780 | 2015-03-23 10:53:21 +0100 | [diff] [blame] | 1577 | mr->dirty_log_mask = tcg_enabled() ? (1 << DIRTY_MEMORY_CODE) : 0; |
Igor Mammedov | 1cd3d49 | 2018-09-04 14:39:37 +0200 | [diff] [blame] | 1578 | if (err) { |
| 1579 | mr->size = int128_zero(); |
| 1580 | object_unparent(OBJECT(mr)); |
| 1581 | error_propagate(errp, err); |
| 1582 | } |
Michael S. Tsirkin | 60786ef | 2014-11-17 00:24:36 +0200 | [diff] [blame] | 1583 | } |
| 1584 | |
Hikaru Nishida | d5dbde4 | 2018-09-24 21:32:05 +0900 | [diff] [blame] | 1585 | #ifdef CONFIG_POSIX |
Paolo Bonzini | 0b183fc | 2014-05-14 17:43:19 +0800 | [diff] [blame] | 1586 | void memory_region_init_ram_from_file(MemoryRegion *mr, |
| 1587 | struct Object *owner, |
| 1588 | const char *name, |
| 1589 | uint64_t size, |
Haozhong Zhang | 9837684 | 2017-12-11 15:28:04 +0800 | [diff] [blame] | 1590 | uint64_t align, |
Junyan He | cbfc017 | 2018-07-18 15:47:58 +0800 | [diff] [blame] | 1591 | uint32_t ram_flags, |
Paolo Bonzini | 7f56e74 | 2014-05-14 17:43:20 +0800 | [diff] [blame] | 1592 | const char *path, |
| 1593 | Error **errp) |
Paolo Bonzini | 0b183fc | 2014-05-14 17:43:19 +0800 | [diff] [blame] | 1594 | { |
Igor Mammedov | 1cd3d49 | 2018-09-04 14:39:37 +0200 | [diff] [blame] | 1595 | Error *err = NULL; |
Paolo Bonzini | 0b183fc | 2014-05-14 17:43:19 +0800 | [diff] [blame] | 1596 | memory_region_init(mr, owner, name, size); |
| 1597 | mr->ram = true; |
| 1598 | mr->terminates = true; |
| 1599 | mr->destructor = memory_region_destructor_ram; |
Haozhong Zhang | 9837684 | 2017-12-11 15:28:04 +0800 | [diff] [blame] | 1600 | mr->align = align; |
Igor Mammedov | 1cd3d49 | 2018-09-04 14:39:37 +0200 | [diff] [blame] | 1601 | mr->ram_block = qemu_ram_alloc_from_file(size, mr, ram_flags, path, &err); |
Paolo Bonzini | 677e780 | 2015-03-23 10:53:21 +0100 | [diff] [blame] | 1602 | mr->dirty_log_mask = tcg_enabled() ? (1 << DIRTY_MEMORY_CODE) : 0; |
Igor Mammedov | 1cd3d49 | 2018-09-04 14:39:37 +0200 | [diff] [blame] | 1603 | if (err) { |
| 1604 | mr->size = int128_zero(); |
| 1605 | object_unparent(OBJECT(mr)); |
| 1606 | error_propagate(errp, err); |
| 1607 | } |
Paolo Bonzini | 0b183fc | 2014-05-14 17:43:19 +0800 | [diff] [blame] | 1608 | } |
Marc-André Lureau | fea617c | 2017-06-02 18:12:24 +0400 | [diff] [blame] | 1609 | |
| 1610 | void memory_region_init_ram_from_fd(MemoryRegion *mr, |
| 1611 | struct Object *owner, |
| 1612 | const char *name, |
| 1613 | uint64_t size, |
| 1614 | bool share, |
| 1615 | int fd, |
| 1616 | Error **errp) |
| 1617 | { |
Igor Mammedov | 1cd3d49 | 2018-09-04 14:39:37 +0200 | [diff] [blame] | 1618 | Error *err = NULL; |
Marc-André Lureau | fea617c | 2017-06-02 18:12:24 +0400 | [diff] [blame] | 1619 | memory_region_init(mr, owner, name, size); |
| 1620 | mr->ram = true; |
| 1621 | mr->terminates = true; |
| 1622 | mr->destructor = memory_region_destructor_ram; |
Junyan He | cbfc017 | 2018-07-18 15:47:58 +0800 | [diff] [blame] | 1623 | mr->ram_block = qemu_ram_alloc_from_fd(size, mr, |
| 1624 | share ? RAM_SHARED : 0, |
Igor Mammedov | 1cd3d49 | 2018-09-04 14:39:37 +0200 | [diff] [blame] | 1625 | fd, &err); |
Marc-André Lureau | fea617c | 2017-06-02 18:12:24 +0400 | [diff] [blame] | 1626 | mr->dirty_log_mask = tcg_enabled() ? (1 << DIRTY_MEMORY_CODE) : 0; |
Igor Mammedov | 1cd3d49 | 2018-09-04 14:39:37 +0200 | [diff] [blame] | 1627 | if (err) { |
| 1628 | mr->size = int128_zero(); |
| 1629 | object_unparent(OBJECT(mr)); |
| 1630 | error_propagate(errp, err); |
| 1631 | } |
Marc-André Lureau | fea617c | 2017-06-02 18:12:24 +0400 | [diff] [blame] | 1632 | } |
Paolo Bonzini | 0b183fc | 2014-05-14 17:43:19 +0800 | [diff] [blame] | 1633 | #endif |
| 1634 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1635 | void memory_region_init_ram_ptr(MemoryRegion *mr, |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 1636 | Object *owner, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1637 | const char *name, |
| 1638 | uint64_t size, |
| 1639 | void *ptr) |
| 1640 | { |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 1641 | memory_region_init(mr, owner, name, size); |
Avi Kivity | 8ea9252 | 2011-12-08 15:58:43 +0200 | [diff] [blame] | 1642 | mr->ram = true; |
Avi Kivity | 14a3c10 | 2011-07-26 14:26:06 +0300 | [diff] [blame] | 1643 | mr->terminates = true; |
Eduardo Habkost | fc3e766 | 2015-11-06 19:20:05 -0200 | [diff] [blame] | 1644 | mr->destructor = memory_region_destructor_ram; |
Paolo Bonzini | 677e780 | 2015-03-23 10:53:21 +0100 | [diff] [blame] | 1645 | mr->dirty_log_mask = tcg_enabled() ? (1 << DIRTY_MEMORY_CODE) : 0; |
Hu Tao | ef701d7 | 2014-09-09 13:27:54 +0800 | [diff] [blame] | 1646 | |
| 1647 | /* qemu_ram_alloc_from_ptr cannot fail with ptr != NULL. */ |
| 1648 | assert(ptr != NULL); |
Fam Zheng | 8e41fb6 | 2016-03-01 14:18:21 +0800 | [diff] [blame] | 1649 | mr->ram_block = qemu_ram_alloc_from_ptr(size, ptr, mr, &error_fatal); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1650 | } |
| 1651 | |
Alex Williamson | 21e00fa | 2016-10-31 09:53:03 -0600 | [diff] [blame] | 1652 | void memory_region_init_ram_device_ptr(MemoryRegion *mr, |
| 1653 | Object *owner, |
| 1654 | const char *name, |
| 1655 | uint64_t size, |
| 1656 | void *ptr) |
Nikunj A Dadhania | e4dc3f5 | 2014-09-15 09:28:23 +0530 | [diff] [blame] | 1657 | { |
Alex Williamson | 21e00fa | 2016-10-31 09:53:03 -0600 | [diff] [blame] | 1658 | memory_region_init_ram_ptr(mr, owner, name, size, ptr); |
| 1659 | mr->ram_device = true; |
Alex Williamson | 4a2e242 | 2016-10-31 09:53:03 -0600 | [diff] [blame] | 1660 | mr->ops = &ram_device_mem_ops; |
| 1661 | mr->opaque = mr; |
Nikunj A Dadhania | e4dc3f5 | 2014-09-15 09:28:23 +0530 | [diff] [blame] | 1662 | } |
| 1663 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1664 | void memory_region_init_alias(MemoryRegion *mr, |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 1665 | Object *owner, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1666 | const char *name, |
| 1667 | MemoryRegion *orig, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 1668 | hwaddr offset, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1669 | uint64_t size) |
| 1670 | { |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 1671 | memory_region_init(mr, owner, name, size); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1672 | mr->alias = orig; |
| 1673 | mr->alias_offset = offset; |
| 1674 | } |
| 1675 | |
Peter Maydell | b59821a | 2017-07-07 15:42:50 +0100 | [diff] [blame] | 1676 | void memory_region_init_rom_nomigrate(MemoryRegion *mr, |
| 1677 | struct Object *owner, |
| 1678 | const char *name, |
| 1679 | uint64_t size, |
| 1680 | Error **errp) |
Peter Maydell | a1777f7 | 2016-07-04 13:06:35 +0100 | [diff] [blame] | 1681 | { |
Igor Mammedov | 1cd3d49 | 2018-09-04 14:39:37 +0200 | [diff] [blame] | 1682 | Error *err = NULL; |
Peter Maydell | a1777f7 | 2016-07-04 13:06:35 +0100 | [diff] [blame] | 1683 | memory_region_init(mr, owner, name, size); |
| 1684 | mr->ram = true; |
| 1685 | mr->readonly = true; |
| 1686 | mr->terminates = true; |
| 1687 | mr->destructor = memory_region_destructor_ram; |
Igor Mammedov | 1cd3d49 | 2018-09-04 14:39:37 +0200 | [diff] [blame] | 1688 | mr->ram_block = qemu_ram_alloc(size, false, mr, &err); |
Peter Maydell | a1777f7 | 2016-07-04 13:06:35 +0100 | [diff] [blame] | 1689 | mr->dirty_log_mask = tcg_enabled() ? (1 << DIRTY_MEMORY_CODE) : 0; |
Igor Mammedov | 1cd3d49 | 2018-09-04 14:39:37 +0200 | [diff] [blame] | 1690 | if (err) { |
| 1691 | mr->size = int128_zero(); |
| 1692 | object_unparent(OBJECT(mr)); |
| 1693 | error_propagate(errp, err); |
| 1694 | } |
Peter Maydell | a1777f7 | 2016-07-04 13:06:35 +0100 | [diff] [blame] | 1695 | } |
| 1696 | |
Peter Maydell | b59821a | 2017-07-07 15:42:50 +0100 | [diff] [blame] | 1697 | void memory_region_init_rom_device_nomigrate(MemoryRegion *mr, |
| 1698 | Object *owner, |
| 1699 | const MemoryRegionOps *ops, |
| 1700 | void *opaque, |
| 1701 | const char *name, |
| 1702 | uint64_t size, |
| 1703 | Error **errp) |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 1704 | { |
Igor Mammedov | 1cd3d49 | 2018-09-04 14:39:37 +0200 | [diff] [blame] | 1705 | Error *err = NULL; |
Peter Maydell | 39e0b03 | 2016-07-04 13:06:35 +0100 | [diff] [blame] | 1706 | assert(ops); |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 1707 | memory_region_init(mr, owner, name, size); |
Avi Kivity | 7bc2b9c | 2011-08-25 14:56:14 +0300 | [diff] [blame] | 1708 | mr->ops = ops; |
Avi Kivity | 75f5941 | 2011-08-26 00:35:15 +0300 | [diff] [blame] | 1709 | mr->opaque = opaque; |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 1710 | mr->terminates = true; |
Avi Kivity | 75c578d | 2012-01-02 15:40:52 +0200 | [diff] [blame] | 1711 | mr->rom_device = true; |
Paolo Bonzini | 58268c8 | 2016-09-14 11:05:59 +0200 | [diff] [blame] | 1712 | mr->destructor = memory_region_destructor_ram; |
Igor Mammedov | 1cd3d49 | 2018-09-04 14:39:37 +0200 | [diff] [blame] | 1713 | mr->ram_block = qemu_ram_alloc(size, false, mr, &err); |
| 1714 | if (err) { |
| 1715 | mr->size = int128_zero(); |
| 1716 | object_unparent(OBJECT(mr)); |
| 1717 | error_propagate(errp, err); |
| 1718 | } |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 1719 | } |
| 1720 | |
Alexey Kardashevskiy | 1221a47 | 2017-07-11 13:56:20 +1000 | [diff] [blame] | 1721 | void memory_region_init_iommu(void *_iommu_mr, |
| 1722 | size_t instance_size, |
| 1723 | const char *mrtypename, |
Paolo Bonzini | 2c9b15c | 2013-06-06 05:41:28 -0400 | [diff] [blame] | 1724 | Object *owner, |
Avi Kivity | 3095115 | 2012-10-30 13:47:46 +0200 | [diff] [blame] | 1725 | const char *name, |
| 1726 | uint64_t size) |
| 1727 | { |
Alexey Kardashevskiy | 1221a47 | 2017-07-11 13:56:20 +1000 | [diff] [blame] | 1728 | struct IOMMUMemoryRegion *iommu_mr; |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 1729 | struct MemoryRegion *mr; |
| 1730 | |
Alexey Kardashevskiy | 1221a47 | 2017-07-11 13:56:20 +1000 | [diff] [blame] | 1731 | object_initialize(_iommu_mr, instance_size, mrtypename); |
| 1732 | mr = MEMORY_REGION(_iommu_mr); |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 1733 | memory_region_do_init(mr, owner, name, size); |
| 1734 | iommu_mr = IOMMU_MEMORY_REGION(mr); |
Avi Kivity | 3095115 | 2012-10-30 13:47:46 +0200 | [diff] [blame] | 1735 | mr->terminates = true; /* then re-forwards */ |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 1736 | QLIST_INIT(&iommu_mr->iommu_notify); |
| 1737 | iommu_mr->iommu_notify_flags = IOMMU_NOTIFIER_NONE; |
Avi Kivity | 3095115 | 2012-10-30 13:47:46 +0200 | [diff] [blame] | 1738 | } |
| 1739 | |
Peter Crosthwaite | b4fefef | 2014-06-05 23:15:52 -0700 | [diff] [blame] | 1740 | static void memory_region_finalize(Object *obj) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1741 | { |
Peter Crosthwaite | b4fefef | 2014-06-05 23:15:52 -0700 | [diff] [blame] | 1742 | MemoryRegion *mr = MEMORY_REGION(obj); |
| 1743 | |
Paolo Bonzini | 2e2b8eb | 2015-10-01 10:59:50 +0200 | [diff] [blame] | 1744 | assert(!mr->container); |
| 1745 | |
| 1746 | /* We know the region is not visible in any address space (it |
| 1747 | * does not have a container and cannot be a root either because |
| 1748 | * it has no references, so we can blindly clear mr->enabled. |
| 1749 | * memory_region_set_enabled instead could trigger a transaction |
| 1750 | * and cause an infinite loop. |
| 1751 | */ |
| 1752 | mr->enabled = false; |
| 1753 | memory_region_transaction_begin(); |
| 1754 | while (!QTAILQ_EMPTY(&mr->subregions)) { |
| 1755 | MemoryRegion *subregion = QTAILQ_FIRST(&mr->subregions); |
| 1756 | memory_region_del_subregion(mr, subregion); |
| 1757 | } |
| 1758 | memory_region_transaction_commit(); |
| 1759 | |
Avi Kivity | 545e92e | 2011-08-08 19:58:48 +0300 | [diff] [blame] | 1760 | mr->destructor(mr); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1761 | memory_region_clear_coalescing(mr); |
Peter Maydell | 302fa28 | 2014-08-19 20:05:46 +0100 | [diff] [blame] | 1762 | g_free((char *)mr->name); |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1763 | g_free(mr->ioeventfds); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1764 | } |
| 1765 | |
Paolo Bonzini | 803c081 | 2013-05-07 06:59:09 +0200 | [diff] [blame] | 1766 | Object *memory_region_owner(MemoryRegion *mr) |
| 1767 | { |
Paolo Bonzini | 22a893e | 2014-06-11 10:58:06 +0200 | [diff] [blame] | 1768 | Object *obj = OBJECT(mr); |
| 1769 | return obj->parent; |
Paolo Bonzini | 803c081 | 2013-05-07 06:59:09 +0200 | [diff] [blame] | 1770 | } |
| 1771 | |
Paolo Bonzini | 46637be | 2013-05-07 09:06:00 +0200 | [diff] [blame] | 1772 | void memory_region_ref(MemoryRegion *mr) |
| 1773 | { |
Paolo Bonzini | 22a893e | 2014-06-11 10:58:06 +0200 | [diff] [blame] | 1774 | /* MMIO callbacks most likely will access data that belongs |
| 1775 | * to the owner, hence the need to ref/unref the owner whenever |
| 1776 | * the memory region is in use. |
| 1777 | * |
| 1778 | * The memory region is a child of its owner. As long as the |
| 1779 | * owner doesn't call unparent itself on the memory region, |
| 1780 | * ref-ing the owner will also keep the memory region alive. |
Paolo Bonzini | 612263c | 2015-12-09 11:44:25 +0100 | [diff] [blame] | 1781 | * Memory regions without an owner are supposed to never go away; |
| 1782 | * we do not ref/unref them because it slows down DMA sensibly. |
Paolo Bonzini | 22a893e | 2014-06-11 10:58:06 +0200 | [diff] [blame] | 1783 | */ |
Paolo Bonzini | 612263c | 2015-12-09 11:44:25 +0100 | [diff] [blame] | 1784 | if (mr && mr->owner) { |
| 1785 | object_ref(mr->owner); |
Paolo Bonzini | 46637be | 2013-05-07 09:06:00 +0200 | [diff] [blame] | 1786 | } |
| 1787 | } |
| 1788 | |
| 1789 | void memory_region_unref(MemoryRegion *mr) |
| 1790 | { |
Paolo Bonzini | 612263c | 2015-12-09 11:44:25 +0100 | [diff] [blame] | 1791 | if (mr && mr->owner) { |
| 1792 | object_unref(mr->owner); |
Paolo Bonzini | 46637be | 2013-05-07 09:06:00 +0200 | [diff] [blame] | 1793 | } |
| 1794 | } |
| 1795 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1796 | uint64_t memory_region_size(MemoryRegion *mr) |
| 1797 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1798 | if (int128_eq(mr->size, int128_2_64())) { |
| 1799 | return UINT64_MAX; |
| 1800 | } |
| 1801 | return int128_get64(mr->size); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1802 | } |
| 1803 | |
Peter Crosthwaite | 5d546d4 | 2014-08-14 23:55:03 -0700 | [diff] [blame] | 1804 | const char *memory_region_name(const MemoryRegion *mr) |
Avi Kivity | 8991c79 | 2011-12-20 15:53:11 +0200 | [diff] [blame] | 1805 | { |
Peter Crosthwaite | d1dd32a | 2014-08-25 20:10:24 -0700 | [diff] [blame] | 1806 | if (!mr->name) { |
| 1807 | ((MemoryRegion *)mr)->name = |
| 1808 | object_get_canonical_path_component(OBJECT(mr)); |
| 1809 | } |
Peter Maydell | 302fa28 | 2014-08-19 20:05:46 +0100 | [diff] [blame] | 1810 | return mr->name; |
Avi Kivity | 8991c79 | 2011-12-20 15:53:11 +0200 | [diff] [blame] | 1811 | } |
| 1812 | |
Alex Williamson | 21e00fa | 2016-10-31 09:53:03 -0600 | [diff] [blame] | 1813 | bool memory_region_is_ram_device(MemoryRegion *mr) |
Nikunj A Dadhania | e4dc3f5 | 2014-09-15 09:28:23 +0530 | [diff] [blame] | 1814 | { |
Alex Williamson | 21e00fa | 2016-10-31 09:53:03 -0600 | [diff] [blame] | 1815 | return mr->ram_device; |
Nikunj A Dadhania | e4dc3f5 | 2014-09-15 09:28:23 +0530 | [diff] [blame] | 1816 | } |
| 1817 | |
Paolo Bonzini | 2d1a35b | 2015-03-23 10:50:57 +0100 | [diff] [blame] | 1818 | uint8_t memory_region_get_dirty_log_mask(MemoryRegion *mr) |
Avi Kivity | 55043ba | 2011-12-15 17:20:34 +0200 | [diff] [blame] | 1819 | { |
Paolo Bonzini | 6f6a5ef | 2015-03-23 10:57:21 +0100 | [diff] [blame] | 1820 | uint8_t mask = mr->dirty_log_mask; |
Paolo Bonzini | adaad61 | 2016-09-22 16:09:08 +0200 | [diff] [blame] | 1821 | if (global_dirty_log && mr->ram_block) { |
Paolo Bonzini | 6f6a5ef | 2015-03-23 10:57:21 +0100 | [diff] [blame] | 1822 | mask |= (1 << DIRTY_MEMORY_MIGRATION); |
| 1823 | } |
| 1824 | return mask; |
Avi Kivity | 55043ba | 2011-12-15 17:20:34 +0200 | [diff] [blame] | 1825 | } |
| 1826 | |
Paolo Bonzini | 2d1a35b | 2015-03-23 10:50:57 +0100 | [diff] [blame] | 1827 | bool memory_region_is_logging(MemoryRegion *mr, uint8_t client) |
| 1828 | { |
| 1829 | return memory_region_get_dirty_log_mask(mr) & (1 << client); |
| 1830 | } |
| 1831 | |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 1832 | static void memory_region_update_iommu_notify_flags(IOMMUMemoryRegion *iommu_mr) |
Peter Xu | 5bf3d31 | 2016-09-23 13:02:27 +0800 | [diff] [blame] | 1833 | { |
| 1834 | IOMMUNotifierFlag flags = IOMMU_NOTIFIER_NONE; |
| 1835 | IOMMUNotifier *iommu_notifier; |
Alexey Kardashevskiy | 1221a47 | 2017-07-11 13:56:20 +1000 | [diff] [blame] | 1836 | IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_GET_CLASS(iommu_mr); |
Peter Xu | 5bf3d31 | 2016-09-23 13:02:27 +0800 | [diff] [blame] | 1837 | |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 1838 | IOMMU_NOTIFIER_FOREACH(iommu_notifier, iommu_mr) { |
Peter Xu | 5bf3d31 | 2016-09-23 13:02:27 +0800 | [diff] [blame] | 1839 | flags |= iommu_notifier->notifier_flags; |
| 1840 | } |
| 1841 | |
Alexey Kardashevskiy | 1221a47 | 2017-07-11 13:56:20 +1000 | [diff] [blame] | 1842 | if (flags != iommu_mr->iommu_notify_flags && imrc->notify_flag_changed) { |
| 1843 | imrc->notify_flag_changed(iommu_mr, |
| 1844 | iommu_mr->iommu_notify_flags, |
| 1845 | flags); |
Peter Xu | 5bf3d31 | 2016-09-23 13:02:27 +0800 | [diff] [blame] | 1846 | } |
| 1847 | |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 1848 | iommu_mr->iommu_notify_flags = flags; |
Peter Xu | 5bf3d31 | 2016-09-23 13:02:27 +0800 | [diff] [blame] | 1849 | } |
| 1850 | |
Peter Xu | cdb3081 | 2016-09-23 13:02:26 +0800 | [diff] [blame] | 1851 | void memory_region_register_iommu_notifier(MemoryRegion *mr, |
| 1852 | IOMMUNotifier *n) |
David Gibson | 0686657 | 2013-05-14 19:13:56 +1000 | [diff] [blame] | 1853 | { |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 1854 | IOMMUMemoryRegion *iommu_mr; |
| 1855 | |
Jason Wang | efcd38c | 2016-12-30 18:09:17 +0800 | [diff] [blame] | 1856 | if (mr->alias) { |
| 1857 | memory_region_register_iommu_notifier(mr->alias, n); |
| 1858 | return; |
| 1859 | } |
| 1860 | |
Peter Xu | cdb3081 | 2016-09-23 13:02:26 +0800 | [diff] [blame] | 1861 | /* We need to register for at least one bitfield */ |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 1862 | iommu_mr = IOMMU_MEMORY_REGION(mr); |
Peter Xu | cdb3081 | 2016-09-23 13:02:26 +0800 | [diff] [blame] | 1863 | assert(n->notifier_flags != IOMMU_NOTIFIER_NONE); |
Peter Xu | 698feb5 | 2017-04-07 18:59:07 +0800 | [diff] [blame] | 1864 | assert(n->start <= n->end); |
Peter Maydell | cb1efcf | 2018-06-15 14:57:16 +0100 | [diff] [blame] | 1865 | assert(n->iommu_idx >= 0 && |
| 1866 | n->iommu_idx < memory_region_iommu_num_indexes(iommu_mr)); |
| 1867 | |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 1868 | QLIST_INSERT_HEAD(&iommu_mr->iommu_notify, n, node); |
| 1869 | memory_region_update_iommu_notify_flags(iommu_mr); |
David Gibson | 0686657 | 2013-05-14 19:13:56 +1000 | [diff] [blame] | 1870 | } |
| 1871 | |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 1872 | uint64_t memory_region_iommu_get_min_page_size(IOMMUMemoryRegion *iommu_mr) |
David Gibson | a788f22 | 2015-09-30 12:13:55 +1000 | [diff] [blame] | 1873 | { |
Alexey Kardashevskiy | 1221a47 | 2017-07-11 13:56:20 +1000 | [diff] [blame] | 1874 | IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_GET_CLASS(iommu_mr); |
| 1875 | |
| 1876 | if (imrc->get_min_page_size) { |
| 1877 | return imrc->get_min_page_size(iommu_mr); |
Alexey Kardashevskiy | f682e9c | 2016-06-21 11:14:01 +1000 | [diff] [blame] | 1878 | } |
| 1879 | return TARGET_PAGE_SIZE; |
| 1880 | } |
| 1881 | |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 1882 | void memory_region_iommu_replay(IOMMUMemoryRegion *iommu_mr, IOMMUNotifier *n) |
Alexey Kardashevskiy | f682e9c | 2016-06-21 11:14:01 +1000 | [diff] [blame] | 1883 | { |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 1884 | MemoryRegion *mr = MEMORY_REGION(iommu_mr); |
Alexey Kardashevskiy | 1221a47 | 2017-07-11 13:56:20 +1000 | [diff] [blame] | 1885 | IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_GET_CLASS(iommu_mr); |
Alexey Kardashevskiy | f682e9c | 2016-06-21 11:14:01 +1000 | [diff] [blame] | 1886 | hwaddr addr, granularity; |
David Gibson | a788f22 | 2015-09-30 12:13:55 +1000 | [diff] [blame] | 1887 | IOMMUTLBEntry iotlb; |
| 1888 | |
Peter Xu | faa362e | 2017-04-07 18:59:11 +0800 | [diff] [blame] | 1889 | /* If the IOMMU has its own replay callback, override */ |
Alexey Kardashevskiy | 1221a47 | 2017-07-11 13:56:20 +1000 | [diff] [blame] | 1890 | if (imrc->replay) { |
| 1891 | imrc->replay(iommu_mr, n); |
Peter Xu | faa362e | 2017-04-07 18:59:11 +0800 | [diff] [blame] | 1892 | return; |
| 1893 | } |
| 1894 | |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 1895 | granularity = memory_region_iommu_get_min_page_size(iommu_mr); |
Alexey Kardashevskiy | f682e9c | 2016-06-21 11:14:01 +1000 | [diff] [blame] | 1896 | |
David Gibson | a788f22 | 2015-09-30 12:13:55 +1000 | [diff] [blame] | 1897 | for (addr = 0; addr < memory_region_size(mr); addr += granularity) { |
Peter Maydell | 2c91bcf | 2018-06-15 14:57:16 +0100 | [diff] [blame] | 1898 | iotlb = imrc->translate(iommu_mr, addr, IOMMU_NONE, n->iommu_idx); |
David Gibson | a788f22 | 2015-09-30 12:13:55 +1000 | [diff] [blame] | 1899 | if (iotlb.perm != IOMMU_NONE) { |
| 1900 | n->notify(n, &iotlb); |
| 1901 | } |
| 1902 | |
| 1903 | /* if (2^64 - MR size) < granularity, it's possible to get an |
| 1904 | * infinite loop here. This should catch such a wraparound */ |
| 1905 | if ((addr + granularity) < addr) { |
| 1906 | break; |
| 1907 | } |
| 1908 | } |
| 1909 | } |
| 1910 | |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 1911 | void memory_region_iommu_replay_all(IOMMUMemoryRegion *iommu_mr) |
Peter Xu | de472e4 | 2017-04-07 18:59:09 +0800 | [diff] [blame] | 1912 | { |
| 1913 | IOMMUNotifier *notifier; |
| 1914 | |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 1915 | IOMMU_NOTIFIER_FOREACH(notifier, iommu_mr) { |
| 1916 | memory_region_iommu_replay(iommu_mr, notifier); |
Peter Xu | de472e4 | 2017-04-07 18:59:09 +0800 | [diff] [blame] | 1917 | } |
| 1918 | } |
| 1919 | |
Peter Xu | cdb3081 | 2016-09-23 13:02:26 +0800 | [diff] [blame] | 1920 | void memory_region_unregister_iommu_notifier(MemoryRegion *mr, |
| 1921 | IOMMUNotifier *n) |
David Gibson | 0686657 | 2013-05-14 19:13:56 +1000 | [diff] [blame] | 1922 | { |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 1923 | IOMMUMemoryRegion *iommu_mr; |
| 1924 | |
Jason Wang | efcd38c | 2016-12-30 18:09:17 +0800 | [diff] [blame] | 1925 | if (mr->alias) { |
| 1926 | memory_region_unregister_iommu_notifier(mr->alias, n); |
| 1927 | return; |
| 1928 | } |
Peter Xu | cdb3081 | 2016-09-23 13:02:26 +0800 | [diff] [blame] | 1929 | QLIST_REMOVE(n, node); |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 1930 | iommu_mr = IOMMU_MEMORY_REGION(mr); |
| 1931 | memory_region_update_iommu_notify_flags(iommu_mr); |
David Gibson | 0686657 | 2013-05-14 19:13:56 +1000 | [diff] [blame] | 1932 | } |
| 1933 | |
Peter Xu | bd2bfa4 | 2017-04-07 18:59:10 +0800 | [diff] [blame] | 1934 | void memory_region_notify_one(IOMMUNotifier *notifier, |
| 1935 | IOMMUTLBEntry *entry) |
David Gibson | 0686657 | 2013-05-14 19:13:56 +1000 | [diff] [blame] | 1936 | { |
Peter Xu | cdb3081 | 2016-09-23 13:02:26 +0800 | [diff] [blame] | 1937 | IOMMUNotifierFlag request_flags; |
| 1938 | |
Peter Xu | bd2bfa4 | 2017-04-07 18:59:10 +0800 | [diff] [blame] | 1939 | /* |
| 1940 | * Skip the notification if the notification does not overlap |
| 1941 | * with registered range. |
| 1942 | */ |
Maxime Coquelin | b021d1c | 2017-10-10 11:42:47 +0200 | [diff] [blame] | 1943 | if (notifier->start > entry->iova + entry->addr_mask || |
Peter Xu | bd2bfa4 | 2017-04-07 18:59:10 +0800 | [diff] [blame] | 1944 | notifier->end < entry->iova) { |
| 1945 | return; |
| 1946 | } |
Peter Xu | cdb3081 | 2016-09-23 13:02:26 +0800 | [diff] [blame] | 1947 | |
Peter Xu | bd2bfa4 | 2017-04-07 18:59:10 +0800 | [diff] [blame] | 1948 | if (entry->perm & IOMMU_RW) { |
Peter Xu | cdb3081 | 2016-09-23 13:02:26 +0800 | [diff] [blame] | 1949 | request_flags = IOMMU_NOTIFIER_MAP; |
| 1950 | } else { |
| 1951 | request_flags = IOMMU_NOTIFIER_UNMAP; |
| 1952 | } |
| 1953 | |
Peter Xu | bd2bfa4 | 2017-04-07 18:59:10 +0800 | [diff] [blame] | 1954 | if (notifier->notifier_flags & request_flags) { |
| 1955 | notifier->notify(notifier, entry); |
| 1956 | } |
| 1957 | } |
| 1958 | |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 1959 | void memory_region_notify_iommu(IOMMUMemoryRegion *iommu_mr, |
Peter Maydell | cb1efcf | 2018-06-15 14:57:16 +0100 | [diff] [blame] | 1960 | int iommu_idx, |
Peter Xu | bd2bfa4 | 2017-04-07 18:59:10 +0800 | [diff] [blame] | 1961 | IOMMUTLBEntry entry) |
| 1962 | { |
| 1963 | IOMMUNotifier *iommu_notifier; |
| 1964 | |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 1965 | assert(memory_region_is_iommu(MEMORY_REGION(iommu_mr))); |
Peter Xu | bd2bfa4 | 2017-04-07 18:59:10 +0800 | [diff] [blame] | 1966 | |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 1967 | IOMMU_NOTIFIER_FOREACH(iommu_notifier, iommu_mr) { |
Peter Maydell | cb1efcf | 2018-06-15 14:57:16 +0100 | [diff] [blame] | 1968 | if (iommu_notifier->iommu_idx == iommu_idx) { |
| 1969 | memory_region_notify_one(iommu_notifier, &entry); |
| 1970 | } |
Peter Xu | cdb3081 | 2016-09-23 13:02:26 +0800 | [diff] [blame] | 1971 | } |
David Gibson | 0686657 | 2013-05-14 19:13:56 +1000 | [diff] [blame] | 1972 | } |
| 1973 | |
Alexey Kardashevskiy | f1334de | 2018-02-06 11:08:24 -0700 | [diff] [blame] | 1974 | int memory_region_iommu_get_attr(IOMMUMemoryRegion *iommu_mr, |
| 1975 | enum IOMMUMemoryRegionAttr attr, |
| 1976 | void *data) |
| 1977 | { |
| 1978 | IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_GET_CLASS(iommu_mr); |
| 1979 | |
| 1980 | if (!imrc->get_attr) { |
| 1981 | return -EINVAL; |
| 1982 | } |
| 1983 | |
| 1984 | return imrc->get_attr(iommu_mr, attr, data); |
| 1985 | } |
| 1986 | |
Peter Maydell | 21f4020 | 2018-06-15 14:57:15 +0100 | [diff] [blame] | 1987 | int memory_region_iommu_attrs_to_index(IOMMUMemoryRegion *iommu_mr, |
| 1988 | MemTxAttrs attrs) |
| 1989 | { |
| 1990 | IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_GET_CLASS(iommu_mr); |
| 1991 | |
| 1992 | if (!imrc->attrs_to_index) { |
| 1993 | return 0; |
| 1994 | } |
| 1995 | |
| 1996 | return imrc->attrs_to_index(iommu_mr, attrs); |
| 1997 | } |
| 1998 | |
| 1999 | int memory_region_iommu_num_indexes(IOMMUMemoryRegion *iommu_mr) |
| 2000 | { |
| 2001 | IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_GET_CLASS(iommu_mr); |
| 2002 | |
| 2003 | if (!imrc->num_indexes) { |
| 2004 | return 1; |
| 2005 | } |
| 2006 | |
| 2007 | return imrc->num_indexes(iommu_mr); |
| 2008 | } |
| 2009 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2010 | void memory_region_set_log(MemoryRegion *mr, bool log, unsigned client) |
| 2011 | { |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 2012 | uint8_t mask = 1 << client; |
Paolo Bonzini | deb809e | 2015-07-14 13:56:53 +0200 | [diff] [blame] | 2013 | uint8_t old_logging; |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 2014 | |
Paolo Bonzini | dbddac6 | 2015-03-23 10:31:53 +0100 | [diff] [blame] | 2015 | assert(client == DIRTY_MEMORY_VGA); |
Paolo Bonzini | deb809e | 2015-07-14 13:56:53 +0200 | [diff] [blame] | 2016 | old_logging = mr->vga_logging_count; |
| 2017 | mr->vga_logging_count += log ? 1 : -1; |
| 2018 | if (!!old_logging == !!mr->vga_logging_count) { |
| 2019 | return; |
| 2020 | } |
| 2021 | |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 2022 | memory_region_transaction_begin(); |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 2023 | mr->dirty_log_mask = (mr->dirty_log_mask & ~mask) | (log * mask); |
Jan Kiszka | 22bde71 | 2012-11-05 16:45:56 +0100 | [diff] [blame] | 2024 | memory_region_update_pending |= mr->enabled; |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 2025 | memory_region_transaction_commit(); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2026 | } |
| 2027 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2028 | bool memory_region_get_dirty(MemoryRegion *mr, hwaddr addr, |
| 2029 | hwaddr size, unsigned client) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2030 | { |
Fam Zheng | 8e41fb6 | 2016-03-01 14:18:21 +0800 | [diff] [blame] | 2031 | assert(mr->ram_block); |
| 2032 | return cpu_physical_memory_get_dirty(memory_region_get_ram_addr(mr) + addr, |
| 2033 | size, client); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2034 | } |
| 2035 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2036 | void memory_region_set_dirty(MemoryRegion *mr, hwaddr addr, |
| 2037 | hwaddr size) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2038 | { |
Fam Zheng | 8e41fb6 | 2016-03-01 14:18:21 +0800 | [diff] [blame] | 2039 | assert(mr->ram_block); |
| 2040 | cpu_physical_memory_set_dirty_range(memory_region_get_ram_addr(mr) + addr, |
| 2041 | size, |
Paolo Bonzini | 58d2707 | 2015-03-23 11:56:01 +0100 | [diff] [blame] | 2042 | memory_region_get_dirty_log_mask(mr)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2043 | } |
| 2044 | |
Paolo Bonzini | 0fe1eca | 2018-02-06 18:24:13 +0100 | [diff] [blame] | 2045 | static void memory_region_sync_dirty_bitmap(MemoryRegion *mr) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2046 | { |
Paolo Bonzini | 0a752ee | 2016-09-23 11:08:54 +0200 | [diff] [blame] | 2047 | MemoryListener *listener; |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 2048 | AddressSpace *as; |
Paolo Bonzini | 0a752ee | 2016-09-23 11:08:54 +0200 | [diff] [blame] | 2049 | FlatView *view; |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 2050 | FlatRange *fr; |
| 2051 | |
Paolo Bonzini | 0a752ee | 2016-09-23 11:08:54 +0200 | [diff] [blame] | 2052 | /* If the same address space has multiple log_sync listeners, we |
| 2053 | * visit that address space's FlatView multiple times. But because |
| 2054 | * log_sync listeners are rare, it's still cheaper than walking each |
| 2055 | * address space once. |
| 2056 | */ |
| 2057 | QTAILQ_FOREACH(listener, &memory_listeners, link) { |
| 2058 | if (!listener->log_sync) { |
| 2059 | continue; |
| 2060 | } |
| 2061 | as = listener->address_space; |
| 2062 | view = address_space_get_flatview(as); |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 2063 | FOR_EACH_FLAT_RANGE(fr, view) { |
Paolo Bonzini | 3ebb181 | 2018-02-06 17:55:27 +0100 | [diff] [blame] | 2064 | if (fr->dirty_log_mask && (!mr || fr->mr == mr)) { |
Alexey Kardashevskiy | 1662068 | 2017-09-21 18:50:58 +1000 | [diff] [blame] | 2065 | MemoryRegionSection mrs = section_from_flat_range(fr, view); |
Paolo Bonzini | 0a752ee | 2016-09-23 11:08:54 +0200 | [diff] [blame] | 2066 | listener->log_sync(listener, &mrs); |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 2067 | } |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 2068 | } |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 2069 | flatview_unref(view); |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 2070 | } |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2071 | } |
| 2072 | |
Paolo Bonzini | 0fe1eca | 2018-02-06 18:24:13 +0100 | [diff] [blame] | 2073 | DirtyBitmapSnapshot *memory_region_snapshot_and_clear_dirty(MemoryRegion *mr, |
| 2074 | hwaddr addr, |
| 2075 | hwaddr size, |
| 2076 | unsigned client) |
| 2077 | { |
| 2078 | assert(mr->ram_block); |
| 2079 | memory_region_sync_dirty_bitmap(mr); |
| 2080 | return cpu_physical_memory_snapshot_and_clear_dirty( |
| 2081 | memory_region_get_ram_addr(mr) + addr, size, client); |
| 2082 | } |
| 2083 | |
| 2084 | bool memory_region_snapshot_get_dirty(MemoryRegion *mr, DirtyBitmapSnapshot *snap, |
| 2085 | hwaddr addr, hwaddr size) |
| 2086 | { |
| 2087 | assert(mr->ram_block); |
| 2088 | return cpu_physical_memory_snapshot_get_dirty(snap, |
| 2089 | memory_region_get_ram_addr(mr) + addr, size); |
| 2090 | } |
| 2091 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2092 | void memory_region_set_readonly(MemoryRegion *mr, bool readonly) |
| 2093 | { |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 2094 | if (mr->readonly != readonly) { |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 2095 | memory_region_transaction_begin(); |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 2096 | mr->readonly = readonly; |
Jan Kiszka | 22bde71 | 2012-11-05 16:45:56 +0100 | [diff] [blame] | 2097 | memory_region_update_pending |= mr->enabled; |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 2098 | memory_region_transaction_commit(); |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 2099 | } |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2100 | } |
| 2101 | |
Marc-André Lureau | c26763f | 2018-10-03 15:44:52 +0400 | [diff] [blame] | 2102 | void memory_region_set_nonvolatile(MemoryRegion *mr, bool nonvolatile) |
| 2103 | { |
| 2104 | if (mr->nonvolatile != nonvolatile) { |
| 2105 | memory_region_transaction_begin(); |
| 2106 | mr->nonvolatile = nonvolatile; |
| 2107 | memory_region_update_pending |= mr->enabled; |
| 2108 | memory_region_transaction_commit(); |
| 2109 | } |
| 2110 | } |
| 2111 | |
Jan Kiszka | 5f9a5ea | 2013-05-07 19:04:25 +0200 | [diff] [blame] | 2112 | void memory_region_rom_device_set_romd(MemoryRegion *mr, bool romd_mode) |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 2113 | { |
Jan Kiszka | 5f9a5ea | 2013-05-07 19:04:25 +0200 | [diff] [blame] | 2114 | if (mr->romd_mode != romd_mode) { |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 2115 | memory_region_transaction_begin(); |
Jan Kiszka | 5f9a5ea | 2013-05-07 19:04:25 +0200 | [diff] [blame] | 2116 | mr->romd_mode = romd_mode; |
Jan Kiszka | 22bde71 | 2012-11-05 16:45:56 +0100 | [diff] [blame] | 2117 | memory_region_update_pending |= mr->enabled; |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 2118 | memory_region_transaction_commit(); |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 2119 | } |
| 2120 | } |
| 2121 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2122 | void memory_region_reset_dirty(MemoryRegion *mr, hwaddr addr, |
| 2123 | hwaddr size, unsigned client) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2124 | { |
Fam Zheng | 8e41fb6 | 2016-03-01 14:18:21 +0800 | [diff] [blame] | 2125 | assert(mr->ram_block); |
| 2126 | cpu_physical_memory_test_and_clear_dirty( |
| 2127 | memory_region_get_ram_addr(mr) + addr, size, client); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2128 | } |
| 2129 | |
Paolo Bonzini | a35ba7b | 2014-06-10 19:15:23 +0800 | [diff] [blame] | 2130 | int memory_region_get_fd(MemoryRegion *mr) |
| 2131 | { |
Paolo Bonzini | 4ff8757 | 2016-03-25 12:30:16 +0100 | [diff] [blame] | 2132 | int fd; |
| 2133 | |
| 2134 | rcu_read_lock(); |
| 2135 | while (mr->alias) { |
| 2136 | mr = mr->alias; |
Paolo Bonzini | a35ba7b | 2014-06-10 19:15:23 +0800 | [diff] [blame] | 2137 | } |
Paolo Bonzini | 4ff8757 | 2016-03-25 12:30:16 +0100 | [diff] [blame] | 2138 | fd = mr->ram_block->fd; |
| 2139 | rcu_read_unlock(); |
Paolo Bonzini | a35ba7b | 2014-06-10 19:15:23 +0800 | [diff] [blame] | 2140 | |
Paolo Bonzini | 4ff8757 | 2016-03-25 12:30:16 +0100 | [diff] [blame] | 2141 | return fd; |
| 2142 | } |
Paolo Bonzini | a35ba7b | 2014-06-10 19:15:23 +0800 | [diff] [blame] | 2143 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2144 | void *memory_region_get_ram_ptr(MemoryRegion *mr) |
| 2145 | { |
Paolo Bonzini | 49b24af | 2015-12-16 10:30:47 +0100 | [diff] [blame] | 2146 | void *ptr; |
| 2147 | uint64_t offset = 0; |
| 2148 | |
| 2149 | rcu_read_lock(); |
| 2150 | while (mr->alias) { |
| 2151 | offset += mr->alias_offset; |
| 2152 | mr = mr->alias; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2153 | } |
Fam Zheng | 8e41fb6 | 2016-03-01 14:18:21 +0800 | [diff] [blame] | 2154 | assert(mr->ram_block); |
Paolo Bonzini | 0878d0e | 2016-02-22 11:02:12 +0100 | [diff] [blame] | 2155 | ptr = qemu_map_ram_ptr(mr->ram_block, offset); |
Paolo Bonzini | 49b24af | 2015-12-16 10:30:47 +0100 | [diff] [blame] | 2156 | rcu_read_unlock(); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2157 | |
Paolo Bonzini | 0878d0e | 2016-02-22 11:02:12 +0100 | [diff] [blame] | 2158 | return ptr; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2159 | } |
| 2160 | |
Paolo Bonzini | 07bdaa4 | 2016-03-25 12:55:08 +0100 | [diff] [blame] | 2161 | MemoryRegion *memory_region_from_host(void *ptr, ram_addr_t *offset) |
| 2162 | { |
| 2163 | RAMBlock *block; |
| 2164 | |
| 2165 | block = qemu_ram_block_from_host(ptr, false, offset); |
| 2166 | if (!block) { |
| 2167 | return NULL; |
| 2168 | } |
| 2169 | |
| 2170 | return block->mr; |
| 2171 | } |
| 2172 | |
Fam Zheng | 7ebb274 | 2016-03-01 14:18:20 +0800 | [diff] [blame] | 2173 | ram_addr_t memory_region_get_ram_addr(MemoryRegion *mr) |
| 2174 | { |
| 2175 | return mr->ram_block ? mr->ram_block->offset : RAM_ADDR_INVALID; |
| 2176 | } |
| 2177 | |
Paolo Bonzini | 37d7c08 | 2015-03-23 10:21:46 +0100 | [diff] [blame] | 2178 | void memory_region_ram_resize(MemoryRegion *mr, ram_addr_t newsize, Error **errp) |
| 2179 | { |
Fam Zheng | 8e41fb6 | 2016-03-01 14:18:21 +0800 | [diff] [blame] | 2180 | assert(mr->ram_block); |
Paolo Bonzini | 37d7c08 | 2015-03-23 10:21:46 +0100 | [diff] [blame] | 2181 | |
Gonglei | fa53a0e | 2016-05-10 10:04:59 +0800 | [diff] [blame] | 2182 | qemu_ram_resize(mr->ram_block, newsize, errp); |
Paolo Bonzini | 37d7c08 | 2015-03-23 10:21:46 +0100 | [diff] [blame] | 2183 | } |
| 2184 | |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 2185 | static void memory_region_update_coalesced_range_as(MemoryRegion *mr, AddressSpace *as) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2186 | { |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 2187 | FlatView *view; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2188 | FlatRange *fr; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2189 | |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 2190 | view = address_space_get_flatview(as); |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 2191 | FOR_EACH_FLAT_RANGE(fr, view) { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2192 | if (fr->mr == mr) { |
Paolo Bonzini | 909bf76 | 2018-11-28 10:42:06 +0100 | [diff] [blame] | 2193 | flat_range_coalesced_io_del(fr, as); |
| 2194 | flat_range_coalesced_io_add(fr, as); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2195 | } |
| 2196 | } |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 2197 | flatview_unref(view); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2198 | } |
| 2199 | |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 2200 | static void memory_region_update_coalesced_range(MemoryRegion *mr) |
| 2201 | { |
| 2202 | AddressSpace *as; |
| 2203 | |
| 2204 | QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) { |
| 2205 | memory_region_update_coalesced_range_as(mr, as); |
| 2206 | } |
| 2207 | } |
| 2208 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2209 | void memory_region_set_coalescing(MemoryRegion *mr) |
| 2210 | { |
| 2211 | memory_region_clear_coalescing(mr); |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 2212 | memory_region_add_coalescing(mr, 0, int128_get64(mr->size)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2213 | } |
| 2214 | |
| 2215 | void memory_region_add_coalescing(MemoryRegion *mr, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2216 | hwaddr offset, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2217 | uint64_t size) |
| 2218 | { |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 2219 | CoalescedMemoryRange *cmr = g_malloc(sizeof(*cmr)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2220 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 2221 | cmr->addr = addrrange_make(int128_make64(offset), int128_make64(size)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2222 | QTAILQ_INSERT_TAIL(&mr->coalesced, cmr, link); |
| 2223 | memory_region_update_coalesced_range(mr); |
Jan Kiszka | d410515 | 2012-08-23 13:02:29 +0200 | [diff] [blame] | 2224 | memory_region_set_flush_coalesced(mr); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2225 | } |
| 2226 | |
| 2227 | void memory_region_clear_coalescing(MemoryRegion *mr) |
| 2228 | { |
| 2229 | CoalescedMemoryRange *cmr; |
Fam Zheng | ab5b3db | 2014-06-13 14:34:41 +0800 | [diff] [blame] | 2230 | bool updated = false; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2231 | |
Jan Kiszka | d410515 | 2012-08-23 13:02:29 +0200 | [diff] [blame] | 2232 | qemu_flush_coalesced_mmio_buffer(); |
| 2233 | mr->flush_coalesced_mmio = false; |
| 2234 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2235 | while (!QTAILQ_EMPTY(&mr->coalesced)) { |
| 2236 | cmr = QTAILQ_FIRST(&mr->coalesced); |
| 2237 | QTAILQ_REMOVE(&mr->coalesced, cmr, link); |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 2238 | g_free(cmr); |
Fam Zheng | ab5b3db | 2014-06-13 14:34:41 +0800 | [diff] [blame] | 2239 | updated = true; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2240 | } |
Fam Zheng | ab5b3db | 2014-06-13 14:34:41 +0800 | [diff] [blame] | 2241 | |
| 2242 | if (updated) { |
| 2243 | memory_region_update_coalesced_range(mr); |
| 2244 | } |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2245 | } |
| 2246 | |
Jan Kiszka | d410515 | 2012-08-23 13:02:29 +0200 | [diff] [blame] | 2247 | void memory_region_set_flush_coalesced(MemoryRegion *mr) |
| 2248 | { |
| 2249 | mr->flush_coalesced_mmio = true; |
| 2250 | } |
| 2251 | |
| 2252 | void memory_region_clear_flush_coalesced(MemoryRegion *mr) |
| 2253 | { |
| 2254 | qemu_flush_coalesced_mmio_buffer(); |
| 2255 | if (QTAILQ_EMPTY(&mr->coalesced)) { |
| 2256 | mr->flush_coalesced_mmio = false; |
| 2257 | } |
| 2258 | } |
| 2259 | |
Jan Kiszka | 196ea13 | 2015-06-18 18:47:20 +0200 | [diff] [blame] | 2260 | void memory_region_clear_global_locking(MemoryRegion *mr) |
| 2261 | { |
| 2262 | mr->global_locking = false; |
| 2263 | } |
| 2264 | |
Pavel Fedin | 8c56c1a | 2015-11-20 12:37:16 +0300 | [diff] [blame] | 2265 | static bool userspace_eventfd_warning; |
| 2266 | |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 2267 | void memory_region_add_eventfd(MemoryRegion *mr, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2268 | hwaddr addr, |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 2269 | unsigned size, |
| 2270 | bool match_data, |
| 2271 | uint64_t data, |
Paolo Bonzini | 753d5e1 | 2012-07-05 17:16:27 +0200 | [diff] [blame] | 2272 | EventNotifier *e) |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 2273 | { |
| 2274 | MemoryRegionIoeventfd mrfd = { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 2275 | .addr.start = int128_make64(addr), |
| 2276 | .addr.size = int128_make64(size), |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 2277 | .match_data = match_data, |
| 2278 | .data = data, |
Paolo Bonzini | 753d5e1 | 2012-07-05 17:16:27 +0200 | [diff] [blame] | 2279 | .e = e, |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 2280 | }; |
| 2281 | unsigned i; |
| 2282 | |
Pavel Fedin | 8c56c1a | 2015-11-20 12:37:16 +0300 | [diff] [blame] | 2283 | if (kvm_enabled() && (!(kvm_eventfds_enabled() || |
| 2284 | userspace_eventfd_warning))) { |
| 2285 | userspace_eventfd_warning = true; |
| 2286 | error_report("Using eventfd without MMIO binding in KVM. " |
| 2287 | "Suboptimal performance expected"); |
| 2288 | } |
| 2289 | |
Jason Wang | b8aecea | 2015-11-06 16:02:45 +0800 | [diff] [blame] | 2290 | if (size) { |
| 2291 | adjust_endianness(mr, &mrfd.data, size); |
| 2292 | } |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 2293 | memory_region_transaction_begin(); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 2294 | for (i = 0; i < mr->ioeventfd_nb; ++i) { |
Tristan Burgess | 73bb753 | 2018-05-28 23:04:45 -0400 | [diff] [blame] | 2295 | if (memory_region_ioeventfd_before(&mrfd, &mr->ioeventfds[i])) { |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 2296 | break; |
| 2297 | } |
| 2298 | } |
| 2299 | ++mr->ioeventfd_nb; |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 2300 | mr->ioeventfds = g_realloc(mr->ioeventfds, |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 2301 | sizeof(*mr->ioeventfds) * mr->ioeventfd_nb); |
| 2302 | memmove(&mr->ioeventfds[i+1], &mr->ioeventfds[i], |
| 2303 | sizeof(*mr->ioeventfds) * (mr->ioeventfd_nb-1 - i)); |
| 2304 | mr->ioeventfds[i] = mrfd; |
Gonglei | 4dc5615 | 2014-05-08 11:47:32 +0800 | [diff] [blame] | 2305 | ioeventfd_update_pending |= mr->enabled; |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 2306 | memory_region_transaction_commit(); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 2307 | } |
| 2308 | |
| 2309 | void memory_region_del_eventfd(MemoryRegion *mr, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2310 | hwaddr addr, |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 2311 | unsigned size, |
| 2312 | bool match_data, |
| 2313 | uint64_t data, |
Paolo Bonzini | 753d5e1 | 2012-07-05 17:16:27 +0200 | [diff] [blame] | 2314 | EventNotifier *e) |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 2315 | { |
| 2316 | MemoryRegionIoeventfd mrfd = { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 2317 | .addr.start = int128_make64(addr), |
| 2318 | .addr.size = int128_make64(size), |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 2319 | .match_data = match_data, |
| 2320 | .data = data, |
Paolo Bonzini | 753d5e1 | 2012-07-05 17:16:27 +0200 | [diff] [blame] | 2321 | .e = e, |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 2322 | }; |
| 2323 | unsigned i; |
| 2324 | |
Jason Wang | b8aecea | 2015-11-06 16:02:45 +0800 | [diff] [blame] | 2325 | if (size) { |
| 2326 | adjust_endianness(mr, &mrfd.data, size); |
| 2327 | } |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 2328 | memory_region_transaction_begin(); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 2329 | for (i = 0; i < mr->ioeventfd_nb; ++i) { |
Tristan Burgess | 73bb753 | 2018-05-28 23:04:45 -0400 | [diff] [blame] | 2330 | if (memory_region_ioeventfd_equal(&mrfd, &mr->ioeventfds[i])) { |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 2331 | break; |
| 2332 | } |
| 2333 | } |
| 2334 | assert(i != mr->ioeventfd_nb); |
| 2335 | memmove(&mr->ioeventfds[i], &mr->ioeventfds[i+1], |
| 2336 | sizeof(*mr->ioeventfds) * (mr->ioeventfd_nb - (i+1))); |
| 2337 | --mr->ioeventfd_nb; |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 2338 | mr->ioeventfds = g_realloc(mr->ioeventfds, |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 2339 | sizeof(*mr->ioeventfds)*mr->ioeventfd_nb + 1); |
Gonglei | 4dc5615 | 2014-05-08 11:47:32 +0800 | [diff] [blame] | 2340 | ioeventfd_update_pending |= mr->enabled; |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 2341 | memory_region_transaction_commit(); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 2342 | } |
| 2343 | |
Paolo Bonzini | feca4ac | 2014-06-11 11:18:09 +0200 | [diff] [blame] | 2344 | static void memory_region_update_container_subregions(MemoryRegion *subregion) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2345 | { |
Paolo Bonzini | feca4ac | 2014-06-11 11:18:09 +0200 | [diff] [blame] | 2346 | MemoryRegion *mr = subregion->container; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2347 | MemoryRegion *other; |
| 2348 | |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 2349 | memory_region_transaction_begin(); |
| 2350 | |
Paolo Bonzini | dfde4e6 | 2013-05-06 10:46:11 +0200 | [diff] [blame] | 2351 | memory_region_ref(subregion); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2352 | QTAILQ_FOREACH(other, &mr->subregions, subregions_link) { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2353 | if (subregion->priority >= other->priority) { |
| 2354 | QTAILQ_INSERT_BEFORE(other, subregion, subregions_link); |
| 2355 | goto done; |
| 2356 | } |
| 2357 | } |
| 2358 | QTAILQ_INSERT_TAIL(&mr->subregions, subregion, subregions_link); |
| 2359 | done: |
Jan Kiszka | 22bde71 | 2012-11-05 16:45:56 +0100 | [diff] [blame] | 2360 | memory_region_update_pending |= mr->enabled && subregion->enabled; |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 2361 | memory_region_transaction_commit(); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2362 | } |
| 2363 | |
Peter Crosthwaite | 0598701 | 2014-06-05 23:14:44 -0700 | [diff] [blame] | 2364 | static void memory_region_add_subregion_common(MemoryRegion *mr, |
| 2365 | hwaddr offset, |
| 2366 | MemoryRegion *subregion) |
| 2367 | { |
Paolo Bonzini | feca4ac | 2014-06-11 11:18:09 +0200 | [diff] [blame] | 2368 | assert(!subregion->container); |
| 2369 | subregion->container = mr; |
Peter Crosthwaite | 0598701 | 2014-06-05 23:14:44 -0700 | [diff] [blame] | 2370 | subregion->addr = offset; |
Paolo Bonzini | feca4ac | 2014-06-11 11:18:09 +0200 | [diff] [blame] | 2371 | memory_region_update_container_subregions(subregion); |
Peter Crosthwaite | 0598701 | 2014-06-05 23:14:44 -0700 | [diff] [blame] | 2372 | } |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2373 | |
| 2374 | void memory_region_add_subregion(MemoryRegion *mr, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2375 | hwaddr offset, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2376 | MemoryRegion *subregion) |
| 2377 | { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2378 | subregion->priority = 0; |
| 2379 | memory_region_add_subregion_common(mr, offset, subregion); |
| 2380 | } |
| 2381 | |
| 2382 | void memory_region_add_subregion_overlap(MemoryRegion *mr, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2383 | hwaddr offset, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2384 | MemoryRegion *subregion, |
Marcel Apfelbaum | a1ff8ae | 2013-09-16 11:21:14 +0300 | [diff] [blame] | 2385 | int priority) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2386 | { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2387 | subregion->priority = priority; |
| 2388 | memory_region_add_subregion_common(mr, offset, subregion); |
| 2389 | } |
| 2390 | |
| 2391 | void memory_region_del_subregion(MemoryRegion *mr, |
| 2392 | MemoryRegion *subregion) |
| 2393 | { |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 2394 | memory_region_transaction_begin(); |
Paolo Bonzini | feca4ac | 2014-06-11 11:18:09 +0200 | [diff] [blame] | 2395 | assert(subregion->container == mr); |
| 2396 | subregion->container = NULL; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2397 | QTAILQ_REMOVE(&mr->subregions, subregion, subregions_link); |
Paolo Bonzini | dfde4e6 | 2013-05-06 10:46:11 +0200 | [diff] [blame] | 2398 | memory_region_unref(subregion); |
Jan Kiszka | 22bde71 | 2012-11-05 16:45:56 +0100 | [diff] [blame] | 2399 | memory_region_update_pending |= mr->enabled && subregion->enabled; |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 2400 | memory_region_transaction_commit(); |
Avi Kivity | 6bba19b | 2011-09-14 11:54:58 +0300 | [diff] [blame] | 2401 | } |
| 2402 | |
| 2403 | void memory_region_set_enabled(MemoryRegion *mr, bool enabled) |
| 2404 | { |
| 2405 | if (enabled == mr->enabled) { |
| 2406 | return; |
| 2407 | } |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 2408 | memory_region_transaction_begin(); |
Avi Kivity | 6bba19b | 2011-09-14 11:54:58 +0300 | [diff] [blame] | 2409 | mr->enabled = enabled; |
Jan Kiszka | 22bde71 | 2012-11-05 16:45:56 +0100 | [diff] [blame] | 2410 | memory_region_update_pending = true; |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 2411 | memory_region_transaction_commit(); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 2412 | } |
Avi Kivity | 1c0ffa5 | 2011-07-26 14:26:04 +0300 | [diff] [blame] | 2413 | |
Michael S. Tsirkin | e7af4c6 | 2014-12-16 11:21:23 +0200 | [diff] [blame] | 2414 | void memory_region_set_size(MemoryRegion *mr, uint64_t size) |
| 2415 | { |
| 2416 | Int128 s = int128_make64(size); |
| 2417 | |
| 2418 | if (size == UINT64_MAX) { |
| 2419 | s = int128_2_64(); |
| 2420 | } |
| 2421 | if (int128_eq(s, mr->size)) { |
| 2422 | return; |
| 2423 | } |
| 2424 | memory_region_transaction_begin(); |
| 2425 | mr->size = s; |
| 2426 | memory_region_update_pending = true; |
| 2427 | memory_region_transaction_commit(); |
| 2428 | } |
| 2429 | |
Peter Crosthwaite | 67891b8 | 2014-06-05 23:15:18 -0700 | [diff] [blame] | 2430 | static void memory_region_readd_subregion(MemoryRegion *mr) |
Avi Kivity | 2282e1a | 2011-09-14 12:10:12 +0300 | [diff] [blame] | 2431 | { |
Paolo Bonzini | feca4ac | 2014-06-11 11:18:09 +0200 | [diff] [blame] | 2432 | MemoryRegion *container = mr->container; |
Avi Kivity | 2282e1a | 2011-09-14 12:10:12 +0300 | [diff] [blame] | 2433 | |
Paolo Bonzini | feca4ac | 2014-06-11 11:18:09 +0200 | [diff] [blame] | 2434 | if (container) { |
Peter Crosthwaite | 67891b8 | 2014-06-05 23:15:18 -0700 | [diff] [blame] | 2435 | memory_region_transaction_begin(); |
| 2436 | memory_region_ref(mr); |
Paolo Bonzini | feca4ac | 2014-06-11 11:18:09 +0200 | [diff] [blame] | 2437 | memory_region_del_subregion(container, mr); |
| 2438 | mr->container = container; |
| 2439 | memory_region_update_container_subregions(mr); |
Peter Crosthwaite | 67891b8 | 2014-06-05 23:15:18 -0700 | [diff] [blame] | 2440 | memory_region_unref(mr); |
| 2441 | memory_region_transaction_commit(); |
Avi Kivity | 2282e1a | 2011-09-14 12:10:12 +0300 | [diff] [blame] | 2442 | } |
Peter Crosthwaite | 67891b8 | 2014-06-05 23:15:18 -0700 | [diff] [blame] | 2443 | } |
Avi Kivity | 2282e1a | 2011-09-14 12:10:12 +0300 | [diff] [blame] | 2444 | |
Peter Crosthwaite | 67891b8 | 2014-06-05 23:15:18 -0700 | [diff] [blame] | 2445 | void memory_region_set_address(MemoryRegion *mr, hwaddr addr) |
| 2446 | { |
| 2447 | if (addr != mr->addr) { |
| 2448 | mr->addr = addr; |
| 2449 | memory_region_readd_subregion(mr); |
| 2450 | } |
Avi Kivity | 2282e1a | 2011-09-14 12:10:12 +0300 | [diff] [blame] | 2451 | } |
| 2452 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2453 | void memory_region_set_alias_offset(MemoryRegion *mr, hwaddr offset) |
Avi Kivity | 4703359 | 2011-12-04 19:16:50 +0200 | [diff] [blame] | 2454 | { |
Avi Kivity | 4703359 | 2011-12-04 19:16:50 +0200 | [diff] [blame] | 2455 | assert(mr->alias); |
Avi Kivity | 4703359 | 2011-12-04 19:16:50 +0200 | [diff] [blame] | 2456 | |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 2457 | if (offset == mr->alias_offset) { |
Avi Kivity | 4703359 | 2011-12-04 19:16:50 +0200 | [diff] [blame] | 2458 | return; |
| 2459 | } |
| 2460 | |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 2461 | memory_region_transaction_begin(); |
| 2462 | mr->alias_offset = offset; |
Jan Kiszka | 22bde71 | 2012-11-05 16:45:56 +0100 | [diff] [blame] | 2463 | memory_region_update_pending |= mr->enabled; |
Jan Kiszka | 59023ef | 2012-08-23 13:02:30 +0200 | [diff] [blame] | 2464 | memory_region_transaction_commit(); |
Avi Kivity | 4703359 | 2011-12-04 19:16:50 +0200 | [diff] [blame] | 2465 | } |
| 2466 | |
Igor Mammedov | a2b257d | 2014-10-31 16:38:37 +0000 | [diff] [blame] | 2467 | uint64_t memory_region_get_alignment(const MemoryRegion *mr) |
| 2468 | { |
| 2469 | return mr->align; |
| 2470 | } |
| 2471 | |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 2472 | static int cmp_flatrange_addr(const void *addr_, const void *fr_) |
| 2473 | { |
| 2474 | const AddrRange *addr = addr_; |
| 2475 | const FlatRange *fr = fr_; |
| 2476 | |
| 2477 | if (int128_le(addrrange_end(*addr), fr->addr.start)) { |
| 2478 | return -1; |
| 2479 | } else if (int128_ge(addr->start, addrrange_end(fr->addr))) { |
| 2480 | return 1; |
| 2481 | } |
| 2482 | return 0; |
| 2483 | } |
| 2484 | |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 2485 | static FlatRange *flatview_lookup(FlatView *view, AddrRange addr) |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 2486 | { |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 2487 | return bsearch(&addr, view->ranges, view->nr, |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 2488 | sizeof(FlatRange), cmp_flatrange_addr); |
| 2489 | } |
| 2490 | |
Igor Mammedov | eed2bac | 2014-06-02 15:25:06 +0200 | [diff] [blame] | 2491 | bool memory_region_is_mapped(MemoryRegion *mr) |
| 2492 | { |
| 2493 | return mr->container ? true : false; |
| 2494 | } |
| 2495 | |
Paolo Bonzini | c6742b1 | 2015-07-14 13:45:34 +0200 | [diff] [blame] | 2496 | /* Same as memory_region_find, but it does not add a reference to the |
| 2497 | * returned region. It must be called from an RCU critical section. |
| 2498 | */ |
| 2499 | static MemoryRegionSection memory_region_find_rcu(MemoryRegion *mr, |
| 2500 | hwaddr addr, uint64_t size) |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 2501 | { |
Paolo Bonzini | 052e87b | 2013-05-27 10:08:27 +0200 | [diff] [blame] | 2502 | MemoryRegionSection ret = { .mr = NULL }; |
Paolo Bonzini | 73034e9 | 2013-05-07 15:48:28 +0200 | [diff] [blame] | 2503 | MemoryRegion *root; |
| 2504 | AddressSpace *as; |
| 2505 | AddrRange range; |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 2506 | FlatView *view; |
Paolo Bonzini | 73034e9 | 2013-05-07 15:48:28 +0200 | [diff] [blame] | 2507 | FlatRange *fr; |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 2508 | |
Paolo Bonzini | 73034e9 | 2013-05-07 15:48:28 +0200 | [diff] [blame] | 2509 | addr += mr->addr; |
Paolo Bonzini | feca4ac | 2014-06-11 11:18:09 +0200 | [diff] [blame] | 2510 | for (root = mr; root->container; ) { |
| 2511 | root = root->container; |
Paolo Bonzini | 73034e9 | 2013-05-07 15:48:28 +0200 | [diff] [blame] | 2512 | addr += root->addr; |
| 2513 | } |
| 2514 | |
| 2515 | as = memory_region_to_address_space(root); |
Igor Mammedov | eed2bac | 2014-06-02 15:25:06 +0200 | [diff] [blame] | 2516 | if (!as) { |
| 2517 | return ret; |
| 2518 | } |
Paolo Bonzini | 73034e9 | 2013-05-07 15:48:28 +0200 | [diff] [blame] | 2519 | range = addrrange_make(int128_make64(addr), int128_make64(size)); |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 2520 | |
Alexey Kardashevskiy | 1662068 | 2017-09-21 18:50:58 +1000 | [diff] [blame] | 2521 | view = address_space_to_flatview(as); |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 2522 | fr = flatview_lookup(view, range); |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 2523 | if (!fr) { |
Paolo Bonzini | c6742b1 | 2015-07-14 13:45:34 +0200 | [diff] [blame] | 2524 | return ret; |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 2525 | } |
| 2526 | |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 2527 | while (fr > view->ranges && addrrange_intersects(fr[-1].addr, range)) { |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 2528 | --fr; |
| 2529 | } |
| 2530 | |
| 2531 | ret.mr = fr->mr; |
Alexey Kardashevskiy | 1662068 | 2017-09-21 18:50:58 +1000 | [diff] [blame] | 2532 | ret.fv = view; |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 2533 | range = addrrange_intersection(range, fr->addr); |
| 2534 | ret.offset_within_region = fr->offset_in_region; |
| 2535 | ret.offset_within_region += int128_get64(int128_sub(range.start, |
| 2536 | fr->addr.start)); |
Paolo Bonzini | 052e87b | 2013-05-27 10:08:27 +0200 | [diff] [blame] | 2537 | ret.size = range.size; |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 2538 | ret.offset_within_address_space = int128_get64(range.start); |
Avi Kivity | 7a8499e | 2012-02-08 17:01:23 +0200 | [diff] [blame] | 2539 | ret.readonly = fr->readonly; |
Marc-André Lureau | c26763f | 2018-10-03 15:44:52 +0400 | [diff] [blame] | 2540 | ret.nonvolatile = fr->nonvolatile; |
Paolo Bonzini | c6742b1 | 2015-07-14 13:45:34 +0200 | [diff] [blame] | 2541 | return ret; |
| 2542 | } |
| 2543 | |
| 2544 | MemoryRegionSection memory_region_find(MemoryRegion *mr, |
| 2545 | hwaddr addr, uint64_t size) |
| 2546 | { |
| 2547 | MemoryRegionSection ret; |
| 2548 | rcu_read_lock(); |
| 2549 | ret = memory_region_find_rcu(mr, addr, size); |
| 2550 | if (ret.mr) { |
| 2551 | memory_region_ref(ret.mr); |
| 2552 | } |
Paolo Bonzini | 2b64766 | 2013-05-17 12:40:44 +0200 | [diff] [blame] | 2553 | rcu_read_unlock(); |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 2554 | return ret; |
| 2555 | } |
| 2556 | |
Paolo Bonzini | c6742b1 | 2015-07-14 13:45:34 +0200 | [diff] [blame] | 2557 | bool memory_region_present(MemoryRegion *container, hwaddr addr) |
| 2558 | { |
| 2559 | MemoryRegion *mr; |
| 2560 | |
| 2561 | rcu_read_lock(); |
| 2562 | mr = memory_region_find_rcu(container, addr, 1).mr; |
| 2563 | rcu_read_unlock(); |
| 2564 | return mr && mr != container; |
| 2565 | } |
| 2566 | |
Paolo Bonzini | 9c1f8f4 | 2016-09-22 16:08:31 +0200 | [diff] [blame] | 2567 | void memory_global_dirty_log_sync(void) |
Avi Kivity | 86e775c | 2011-12-15 16:24:49 +0200 | [diff] [blame] | 2568 | { |
Paolo Bonzini | 3ebb181 | 2018-02-06 17:55:27 +0100 | [diff] [blame] | 2569 | memory_region_sync_dirty_bitmap(NULL); |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 2570 | } |
| 2571 | |
Jay Zhou | 1931076 | 2017-07-28 18:28:53 +0800 | [diff] [blame] | 2572 | static VMChangeStateEntry *vmstate_change; |
| 2573 | |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 2574 | void memory_global_dirty_log_start(void) |
| 2575 | { |
Jay Zhou | 1931076 | 2017-07-28 18:28:53 +0800 | [diff] [blame] | 2576 | if (vmstate_change) { |
| 2577 | qemu_del_vm_change_state_handler(vmstate_change); |
| 2578 | vmstate_change = NULL; |
| 2579 | } |
| 2580 | |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 2581 | global_dirty_log = true; |
Paolo Bonzini | 6f6a5ef | 2015-03-23 10:57:21 +0100 | [diff] [blame] | 2582 | |
Avi Kivity | 7376e58 | 2012-02-08 21:05:17 +0200 | [diff] [blame] | 2583 | MEMORY_LISTENER_CALL_GLOBAL(log_global_start, Forward); |
Paolo Bonzini | 6f6a5ef | 2015-03-23 10:57:21 +0100 | [diff] [blame] | 2584 | |
| 2585 | /* Refresh DIRTY_LOG_MIGRATION bit. */ |
| 2586 | memory_region_transaction_begin(); |
| 2587 | memory_region_update_pending = true; |
| 2588 | memory_region_transaction_commit(); |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 2589 | } |
| 2590 | |
Jay Zhou | 1931076 | 2017-07-28 18:28:53 +0800 | [diff] [blame] | 2591 | static void memory_global_dirty_log_do_stop(void) |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 2592 | { |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 2593 | global_dirty_log = false; |
Paolo Bonzini | 6f6a5ef | 2015-03-23 10:57:21 +0100 | [diff] [blame] | 2594 | |
| 2595 | /* Refresh DIRTY_LOG_MIGRATION bit. */ |
| 2596 | memory_region_transaction_begin(); |
| 2597 | memory_region_update_pending = true; |
| 2598 | memory_region_transaction_commit(); |
| 2599 | |
Avi Kivity | 7376e58 | 2012-02-08 21:05:17 +0200 | [diff] [blame] | 2600 | MEMORY_LISTENER_CALL_GLOBAL(log_global_stop, Reverse); |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 2601 | } |
| 2602 | |
Jay Zhou | 1931076 | 2017-07-28 18:28:53 +0800 | [diff] [blame] | 2603 | static void memory_vm_change_state_handler(void *opaque, int running, |
| 2604 | RunState state) |
| 2605 | { |
| 2606 | if (running) { |
| 2607 | memory_global_dirty_log_do_stop(); |
| 2608 | |
| 2609 | if (vmstate_change) { |
| 2610 | qemu_del_vm_change_state_handler(vmstate_change); |
| 2611 | vmstate_change = NULL; |
| 2612 | } |
| 2613 | } |
| 2614 | } |
| 2615 | |
| 2616 | void memory_global_dirty_log_stop(void) |
| 2617 | { |
| 2618 | if (!runstate_is_running()) { |
| 2619 | if (vmstate_change) { |
| 2620 | return; |
| 2621 | } |
| 2622 | vmstate_change = qemu_add_vm_change_state_handler( |
| 2623 | memory_vm_change_state_handler, NULL); |
| 2624 | return; |
| 2625 | } |
| 2626 | |
| 2627 | memory_global_dirty_log_do_stop(); |
| 2628 | } |
| 2629 | |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 2630 | static void listener_add_address_space(MemoryListener *listener, |
| 2631 | AddressSpace *as) |
| 2632 | { |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 2633 | FlatView *view; |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 2634 | FlatRange *fr; |
| 2635 | |
Paolo Bonzini | 680a478 | 2015-11-02 09:23:52 +0100 | [diff] [blame] | 2636 | if (listener->begin) { |
| 2637 | listener->begin(listener); |
| 2638 | } |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 2639 | if (global_dirty_log) { |
Avi Kivity | 975aefe | 2012-10-02 16:39:57 +0200 | [diff] [blame] | 2640 | if (listener->log_global_start) { |
| 2641 | listener->log_global_start(listener); |
| 2642 | } |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 2643 | } |
Avi Kivity | 975aefe | 2012-10-02 16:39:57 +0200 | [diff] [blame] | 2644 | |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 2645 | view = address_space_get_flatview(as); |
Paolo Bonzini | 99e8634 | 2013-05-06 10:26:13 +0200 | [diff] [blame] | 2646 | FOR_EACH_FLAT_RANGE(fr, view) { |
David Hildenbrand | 279836f | 2017-10-16 16:43:02 +0200 | [diff] [blame] | 2647 | MemoryRegionSection section = section_from_flat_range(fr, view); |
| 2648 | |
Avi Kivity | 975aefe | 2012-10-02 16:39:57 +0200 | [diff] [blame] | 2649 | if (listener->region_add) { |
| 2650 | listener->region_add(listener, §ion); |
| 2651 | } |
David Hildenbrand | ae990e6 | 2017-10-16 16:42:56 +0200 | [diff] [blame] | 2652 | if (fr->dirty_log_mask && listener->log_start) { |
| 2653 | listener->log_start(listener, §ion, 0, fr->dirty_log_mask); |
| 2654 | } |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 2655 | } |
Paolo Bonzini | 680a478 | 2015-11-02 09:23:52 +0100 | [diff] [blame] | 2656 | if (listener->commit) { |
| 2657 | listener->commit(listener); |
| 2658 | } |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 2659 | flatview_unref(view); |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 2660 | } |
| 2661 | |
Peter Xu | d25836c | 2018-01-22 14:02:44 +0800 | [diff] [blame] | 2662 | static void listener_del_address_space(MemoryListener *listener, |
| 2663 | AddressSpace *as) |
| 2664 | { |
| 2665 | FlatView *view; |
| 2666 | FlatRange *fr; |
| 2667 | |
| 2668 | if (listener->begin) { |
| 2669 | listener->begin(listener); |
| 2670 | } |
| 2671 | view = address_space_get_flatview(as); |
| 2672 | FOR_EACH_FLAT_RANGE(fr, view) { |
| 2673 | MemoryRegionSection section = section_from_flat_range(fr, view); |
| 2674 | |
| 2675 | if (fr->dirty_log_mask && listener->log_stop) { |
| 2676 | listener->log_stop(listener, §ion, fr->dirty_log_mask, 0); |
| 2677 | } |
| 2678 | if (listener->region_del) { |
| 2679 | listener->region_del(listener, §ion); |
| 2680 | } |
| 2681 | } |
| 2682 | if (listener->commit) { |
| 2683 | listener->commit(listener); |
| 2684 | } |
| 2685 | flatview_unref(view); |
| 2686 | } |
| 2687 | |
Paolo Bonzini | d45fa78 | 2016-09-22 16:11:54 +0200 | [diff] [blame] | 2688 | void memory_listener_register(MemoryListener *listener, AddressSpace *as) |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 2689 | { |
Avi Kivity | 72e22d2 | 2012-02-08 15:05:50 +0200 | [diff] [blame] | 2690 | MemoryListener *other = NULL; |
| 2691 | |
Paolo Bonzini | d45fa78 | 2016-09-22 16:11:54 +0200 | [diff] [blame] | 2692 | listener->address_space = as; |
Avi Kivity | 72e22d2 | 2012-02-08 15:05:50 +0200 | [diff] [blame] | 2693 | if (QTAILQ_EMPTY(&memory_listeners) |
| 2694 | || listener->priority >= QTAILQ_LAST(&memory_listeners, |
| 2695 | memory_listeners)->priority) { |
| 2696 | QTAILQ_INSERT_TAIL(&memory_listeners, listener, link); |
| 2697 | } else { |
| 2698 | QTAILQ_FOREACH(other, &memory_listeners, link) { |
| 2699 | if (listener->priority < other->priority) { |
| 2700 | break; |
| 2701 | } |
| 2702 | } |
| 2703 | QTAILQ_INSERT_BEFORE(other, listener, link); |
| 2704 | } |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 2705 | |
Paolo Bonzini | 9a54635 | 2016-09-22 16:23:06 +0200 | [diff] [blame] | 2706 | if (QTAILQ_EMPTY(&as->listeners) |
| 2707 | || listener->priority >= QTAILQ_LAST(&as->listeners, |
| 2708 | memory_listeners)->priority) { |
| 2709 | QTAILQ_INSERT_TAIL(&as->listeners, listener, link_as); |
| 2710 | } else { |
| 2711 | QTAILQ_FOREACH(other, &as->listeners, link_as) { |
| 2712 | if (listener->priority < other->priority) { |
| 2713 | break; |
| 2714 | } |
| 2715 | } |
| 2716 | QTAILQ_INSERT_BEFORE(other, listener, link_as); |
| 2717 | } |
| 2718 | |
Paolo Bonzini | d45fa78 | 2016-09-22 16:11:54 +0200 | [diff] [blame] | 2719 | listener_add_address_space(listener, as); |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 2720 | } |
| 2721 | |
| 2722 | void memory_listener_unregister(MemoryListener *listener) |
| 2723 | { |
Paolo Bonzini | 1d8280c | 2017-01-27 16:40:12 +0100 | [diff] [blame] | 2724 | if (!listener->address_space) { |
| 2725 | return; |
| 2726 | } |
| 2727 | |
Peter Xu | d25836c | 2018-01-22 14:02:44 +0800 | [diff] [blame] | 2728 | listener_del_address_space(listener, listener->address_space); |
Avi Kivity | 72e22d2 | 2012-02-08 15:05:50 +0200 | [diff] [blame] | 2729 | QTAILQ_REMOVE(&memory_listeners, listener, link); |
Paolo Bonzini | 9a54635 | 2016-09-22 16:23:06 +0200 | [diff] [blame] | 2730 | QTAILQ_REMOVE(&listener->address_space->listeners, listener, link_as); |
Paolo Bonzini | 1d8280c | 2017-01-27 16:40:12 +0100 | [diff] [blame] | 2731 | listener->address_space = NULL; |
Avi Kivity | 86e775c | 2011-12-15 16:24:49 +0200 | [diff] [blame] | 2732 | } |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 2733 | |
Alexey Kardashevskiy | 7dca804 | 2013-04-29 16:25:51 +0000 | [diff] [blame] | 2734 | void address_space_init(AddressSpace *as, MemoryRegion *root, const char *name) |
Avi Kivity | 1c0ffa5 | 2011-07-26 14:26:04 +0300 | [diff] [blame] | 2735 | { |
Paolo Bonzini | ac95190 | 2015-02-11 15:21:04 +0100 | [diff] [blame] | 2736 | memory_region_ref(root); |
Avi Kivity | 8786db7 | 2012-10-02 13:53:41 +0200 | [diff] [blame] | 2737 | as->root = root; |
Alexey Kardashevskiy | 67ace39 | 2017-09-21 18:51:05 +1000 | [diff] [blame] | 2738 | as->current_map = NULL; |
Avi Kivity | 4c19eb7 | 2012-10-30 13:47:44 +0200 | [diff] [blame] | 2739 | as->ioeventfd_nb = 0; |
| 2740 | as->ioeventfds = NULL; |
Paolo Bonzini | 9a54635 | 2016-09-22 16:23:06 +0200 | [diff] [blame] | 2741 | QTAILQ_INIT(&as->listeners); |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 2742 | QTAILQ_INSERT_TAIL(&address_spaces, as, address_spaces_link); |
Alexey Kardashevskiy | 7dca804 | 2013-04-29 16:25:51 +0000 | [diff] [blame] | 2743 | as->name = g_strdup(name ? name : "anonymous"); |
Alexey Kardashevskiy | 202fc01 | 2017-09-21 18:51:09 +1000 | [diff] [blame] | 2744 | address_space_update_topology(as); |
| 2745 | address_space_update_ioeventfds(as); |
Avi Kivity | 1c0ffa5 | 2011-07-26 14:26:04 +0300 | [diff] [blame] | 2746 | } |
Avi Kivity | 658b222 | 2011-07-26 14:26:08 +0300 | [diff] [blame] | 2747 | |
Paolo Bonzini | 374f298 | 2013-05-17 12:37:03 +0200 | [diff] [blame] | 2748 | static void do_address_space_destroy(AddressSpace *as) |
Avi Kivity | 83f3c25 | 2012-10-07 12:59:55 +0200 | [diff] [blame] | 2749 | { |
Paolo Bonzini | 9a54635 | 2016-09-22 16:23:06 +0200 | [diff] [blame] | 2750 | assert(QTAILQ_EMPTY(&as->listeners)); |
David Gibson | 078c44f | 2014-05-30 12:59:00 -0600 | [diff] [blame] | 2751 | |
Paolo Bonzini | 856d724 | 2013-05-06 11:57:21 +0200 | [diff] [blame] | 2752 | flatview_unref(as->current_map); |
Alexey Kardashevskiy | 7dca804 | 2013-04-29 16:25:51 +0000 | [diff] [blame] | 2753 | g_free(as->name); |
Avi Kivity | 4c19eb7 | 2012-10-30 13:47:44 +0200 | [diff] [blame] | 2754 | g_free(as->ioeventfds); |
Paolo Bonzini | ac95190 | 2015-02-11 15:21:04 +0100 | [diff] [blame] | 2755 | memory_region_unref(as->root); |
Avi Kivity | 83f3c25 | 2012-10-07 12:59:55 +0200 | [diff] [blame] | 2756 | } |
| 2757 | |
Paolo Bonzini | 374f298 | 2013-05-17 12:37:03 +0200 | [diff] [blame] | 2758 | void address_space_destroy(AddressSpace *as) |
| 2759 | { |
Paolo Bonzini | ac95190 | 2015-02-11 15:21:04 +0100 | [diff] [blame] | 2760 | MemoryRegion *root = as->root; |
| 2761 | |
Paolo Bonzini | 374f298 | 2013-05-17 12:37:03 +0200 | [diff] [blame] | 2762 | /* Flush out anything from MemoryListeners listening in on this */ |
| 2763 | memory_region_transaction_begin(); |
| 2764 | as->root = NULL; |
| 2765 | memory_region_transaction_commit(); |
| 2766 | QTAILQ_REMOVE(&address_spaces, as, address_spaces_link); |
| 2767 | |
| 2768 | /* At this point, as->dispatch and as->current_map are dummy |
| 2769 | * entries that the guest should never use. Wait for the old |
| 2770 | * values to expire before freeing the data. |
| 2771 | */ |
Paolo Bonzini | ac95190 | 2015-02-11 15:21:04 +0100 | [diff] [blame] | 2772 | as->root = root; |
Paolo Bonzini | 374f298 | 2013-05-17 12:37:03 +0200 | [diff] [blame] | 2773 | call_rcu(as, do_address_space_destroy, rcu); |
| 2774 | } |
| 2775 | |
Peter Xu | 4e83190 | 2017-01-16 16:40:04 +0800 | [diff] [blame] | 2776 | static const char *memory_region_type(MemoryRegion *mr) |
| 2777 | { |
| 2778 | if (memory_region_is_ram_device(mr)) { |
| 2779 | return "ramd"; |
| 2780 | } else if (memory_region_is_romd(mr)) { |
| 2781 | return "romd"; |
| 2782 | } else if (memory_region_is_rom(mr)) { |
| 2783 | return "rom"; |
| 2784 | } else if (memory_region_is_ram(mr)) { |
| 2785 | return "ram"; |
| 2786 | } else { |
| 2787 | return "i/o"; |
| 2788 | } |
| 2789 | } |
| 2790 | |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2791 | typedef struct MemoryRegionList MemoryRegionList; |
| 2792 | |
| 2793 | struct MemoryRegionList { |
| 2794 | const MemoryRegion *mr; |
Kamil Rytarowski | a16878d | 2017-09-03 18:33:04 +0200 | [diff] [blame] | 2795 | QTAILQ_ENTRY(MemoryRegionList) mrqueue; |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2796 | }; |
| 2797 | |
Paolo Bonzini | b58deb3 | 2018-12-06 11:58:10 +0100 | [diff] [blame^] | 2798 | typedef QTAILQ_HEAD(, MemoryRegionList) MemoryRegionListHead; |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2799 | |
Peter Xu | 4e83190 | 2017-01-16 16:40:04 +0800 | [diff] [blame] | 2800 | #define MR_SIZE(size) (int128_nz(size) ? (hwaddr)int128_get64( \ |
| 2801 | int128_sub((size), int128_one())) : 0) |
| 2802 | #define MTREE_INDENT " " |
| 2803 | |
Alexey Kardashevskiy | fc051ae | 2018-06-04 13:25:11 +1000 | [diff] [blame] | 2804 | static void mtree_expand_owner(fprintf_function mon_printf, void *f, |
| 2805 | const char *label, Object *obj) |
| 2806 | { |
| 2807 | DeviceState *dev = (DeviceState *) object_dynamic_cast(obj, TYPE_DEVICE); |
| 2808 | |
| 2809 | mon_printf(f, " %s:{%s", label, dev ? "dev" : "obj"); |
| 2810 | if (dev && dev->id) { |
| 2811 | mon_printf(f, " id=%s", dev->id); |
| 2812 | } else { |
| 2813 | gchar *canonical_path = object_get_canonical_path(obj); |
| 2814 | if (canonical_path) { |
| 2815 | mon_printf(f, " path=%s", canonical_path); |
| 2816 | g_free(canonical_path); |
| 2817 | } else { |
| 2818 | mon_printf(f, " type=%s", object_get_typename(obj)); |
| 2819 | } |
| 2820 | } |
| 2821 | mon_printf(f, "}"); |
| 2822 | } |
| 2823 | |
| 2824 | static void mtree_print_mr_owner(fprintf_function mon_printf, void *f, |
| 2825 | const MemoryRegion *mr) |
| 2826 | { |
| 2827 | Object *owner = mr->owner; |
| 2828 | Object *parent = memory_region_owner((MemoryRegion *)mr); |
| 2829 | |
| 2830 | if (!owner && !parent) { |
| 2831 | mon_printf(f, " orphan"); |
| 2832 | return; |
| 2833 | } |
| 2834 | if (owner) { |
| 2835 | mtree_expand_owner(mon_printf, f, "owner", owner); |
| 2836 | } |
| 2837 | if (parent && parent != owner) { |
| 2838 | mtree_expand_owner(mon_printf, f, "parent", parent); |
| 2839 | } |
| 2840 | } |
| 2841 | |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2842 | static void mtree_print_mr(fprintf_function mon_printf, void *f, |
| 2843 | const MemoryRegion *mr, unsigned int level, |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 2844 | hwaddr base, |
Alexey Kardashevskiy | fc051ae | 2018-06-04 13:25:11 +1000 | [diff] [blame] | 2845 | MemoryRegionListHead *alias_print_queue, |
| 2846 | bool owner) |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2847 | { |
Jan Kiszka | 9479c57 | 2011-09-27 15:00:41 +0200 | [diff] [blame] | 2848 | MemoryRegionList *new_ml, *ml, *next_ml; |
| 2849 | MemoryRegionListHead submr_print_queue; |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2850 | const MemoryRegion *submr; |
| 2851 | unsigned int i; |
Peter Xu | b31f841 | 2017-03-14 20:56:27 +0800 | [diff] [blame] | 2852 | hwaddr cur_start, cur_end; |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2853 | |
Gerd Hoffmann | f8a9f72 | 2015-04-08 12:57:11 +0200 | [diff] [blame] | 2854 | if (!mr) { |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2855 | return; |
| 2856 | } |
| 2857 | |
| 2858 | for (i = 0; i < level; i++) { |
Peter Xu | 4e83190 | 2017-01-16 16:40:04 +0800 | [diff] [blame] | 2859 | mon_printf(f, MTREE_INDENT); |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2860 | } |
| 2861 | |
Peter Xu | b31f841 | 2017-03-14 20:56:27 +0800 | [diff] [blame] | 2862 | cur_start = base + mr->addr; |
| 2863 | cur_end = cur_start + MR_SIZE(mr->size); |
| 2864 | |
| 2865 | /* |
| 2866 | * Try to detect overflow of memory region. This should never |
| 2867 | * happen normally. When it happens, we dump something to warn the |
| 2868 | * user who is observing this. |
| 2869 | */ |
| 2870 | if (cur_start < base || cur_end < cur_start) { |
| 2871 | mon_printf(f, "[DETECTED OVERFLOW!] "); |
| 2872 | } |
| 2873 | |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2874 | if (mr->alias) { |
| 2875 | MemoryRegionList *ml; |
| 2876 | bool found = false; |
| 2877 | |
| 2878 | /* check if the alias is already in the queue */ |
Kamil Rytarowski | a16878d | 2017-09-03 18:33:04 +0200 | [diff] [blame] | 2879 | QTAILQ_FOREACH(ml, alias_print_queue, mrqueue) { |
Paolo Bonzini | f54bb15 | 2013-12-11 12:51:46 +0100 | [diff] [blame] | 2880 | if (ml->mr == mr->alias) { |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2881 | found = true; |
| 2882 | } |
| 2883 | } |
| 2884 | |
| 2885 | if (!found) { |
| 2886 | ml = g_new(MemoryRegionList, 1); |
| 2887 | ml->mr = mr->alias; |
Kamil Rytarowski | a16878d | 2017-09-03 18:33:04 +0200 | [diff] [blame] | 2888 | QTAILQ_INSERT_TAIL(alias_print_queue, ml, mrqueue); |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2889 | } |
Jan Kiszka | 4896d74 | 2012-02-04 16:25:42 +0100 | [diff] [blame] | 2890 | mon_printf(f, TARGET_FMT_plx "-" TARGET_FMT_plx |
Marc-André Lureau | c26763f | 2018-10-03 15:44:52 +0400 | [diff] [blame] | 2891 | " (prio %d, %s%s): alias %s @%s " TARGET_FMT_plx |
Alexey Kardashevskiy | fc051ae | 2018-06-04 13:25:11 +1000 | [diff] [blame] | 2892 | "-" TARGET_FMT_plx "%s", |
Peter Xu | b31f841 | 2017-03-14 20:56:27 +0800 | [diff] [blame] | 2893 | cur_start, cur_end, |
Jan Kiszka | 4b474ba | 2011-09-27 15:00:31 +0200 | [diff] [blame] | 2894 | mr->priority, |
Marc-André Lureau | c26763f | 2018-10-03 15:44:52 +0400 | [diff] [blame] | 2895 | mr->nonvolatile ? "nv-" : "", |
Peter Xu | 4e83190 | 2017-01-16 16:40:04 +0800 | [diff] [blame] | 2896 | memory_region_type((MemoryRegion *)mr), |
Peter Crosthwaite | 3fb18b4 | 2014-08-14 23:55:36 -0700 | [diff] [blame] | 2897 | memory_region_name(mr), |
| 2898 | memory_region_name(mr->alias), |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2899 | mr->alias_offset, |
Peter Xu | 4e83190 | 2017-01-16 16:40:04 +0800 | [diff] [blame] | 2900 | mr->alias_offset + MR_SIZE(mr->size), |
Gerd Hoffmann | f8a9f72 | 2015-04-08 12:57:11 +0200 | [diff] [blame] | 2901 | mr->enabled ? "" : " [disabled]"); |
Alexey Kardashevskiy | fc051ae | 2018-06-04 13:25:11 +1000 | [diff] [blame] | 2902 | if (owner) { |
| 2903 | mtree_print_mr_owner(mon_printf, f, mr); |
| 2904 | } |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2905 | } else { |
Jan Kiszka | 4896d74 | 2012-02-04 16:25:42 +0100 | [diff] [blame] | 2906 | mon_printf(f, |
Marc-André Lureau | c26763f | 2018-10-03 15:44:52 +0400 | [diff] [blame] | 2907 | TARGET_FMT_plx "-" TARGET_FMT_plx " (prio %d, %s%s): %s%s", |
Peter Xu | b31f841 | 2017-03-14 20:56:27 +0800 | [diff] [blame] | 2908 | cur_start, cur_end, |
Jan Kiszka | 4b474ba | 2011-09-27 15:00:31 +0200 | [diff] [blame] | 2909 | mr->priority, |
Marc-André Lureau | c26763f | 2018-10-03 15:44:52 +0400 | [diff] [blame] | 2910 | mr->nonvolatile ? "nv-" : "", |
Peter Xu | 4e83190 | 2017-01-16 16:40:04 +0800 | [diff] [blame] | 2911 | memory_region_type((MemoryRegion *)mr), |
Gerd Hoffmann | f8a9f72 | 2015-04-08 12:57:11 +0200 | [diff] [blame] | 2912 | memory_region_name(mr), |
| 2913 | mr->enabled ? "" : " [disabled]"); |
Alexey Kardashevskiy | fc051ae | 2018-06-04 13:25:11 +1000 | [diff] [blame] | 2914 | if (owner) { |
| 2915 | mtree_print_mr_owner(mon_printf, f, mr); |
| 2916 | } |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2917 | } |
Alexey Kardashevskiy | fc051ae | 2018-06-04 13:25:11 +1000 | [diff] [blame] | 2918 | mon_printf(f, "\n"); |
Jan Kiszka | 9479c57 | 2011-09-27 15:00:41 +0200 | [diff] [blame] | 2919 | |
| 2920 | QTAILQ_INIT(&submr_print_queue); |
| 2921 | |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2922 | QTAILQ_FOREACH(submr, &mr->subregions, subregions_link) { |
Jan Kiszka | 9479c57 | 2011-09-27 15:00:41 +0200 | [diff] [blame] | 2923 | new_ml = g_new(MemoryRegionList, 1); |
| 2924 | new_ml->mr = submr; |
Kamil Rytarowski | a16878d | 2017-09-03 18:33:04 +0200 | [diff] [blame] | 2925 | QTAILQ_FOREACH(ml, &submr_print_queue, mrqueue) { |
Jan Kiszka | 9479c57 | 2011-09-27 15:00:41 +0200 | [diff] [blame] | 2926 | if (new_ml->mr->addr < ml->mr->addr || |
| 2927 | (new_ml->mr->addr == ml->mr->addr && |
| 2928 | new_ml->mr->priority > ml->mr->priority)) { |
Kamil Rytarowski | a16878d | 2017-09-03 18:33:04 +0200 | [diff] [blame] | 2929 | QTAILQ_INSERT_BEFORE(ml, new_ml, mrqueue); |
Jan Kiszka | 9479c57 | 2011-09-27 15:00:41 +0200 | [diff] [blame] | 2930 | new_ml = NULL; |
| 2931 | break; |
| 2932 | } |
| 2933 | } |
| 2934 | if (new_ml) { |
Kamil Rytarowski | a16878d | 2017-09-03 18:33:04 +0200 | [diff] [blame] | 2935 | QTAILQ_INSERT_TAIL(&submr_print_queue, new_ml, mrqueue); |
Jan Kiszka | 9479c57 | 2011-09-27 15:00:41 +0200 | [diff] [blame] | 2936 | } |
| 2937 | } |
| 2938 | |
Kamil Rytarowski | a16878d | 2017-09-03 18:33:04 +0200 | [diff] [blame] | 2939 | QTAILQ_FOREACH(ml, &submr_print_queue, mrqueue) { |
Peter Xu | b31f841 | 2017-03-14 20:56:27 +0800 | [diff] [blame] | 2940 | mtree_print_mr(mon_printf, f, ml->mr, level + 1, cur_start, |
Alexey Kardashevskiy | fc051ae | 2018-06-04 13:25:11 +1000 | [diff] [blame] | 2941 | alias_print_queue, owner); |
Jan Kiszka | 9479c57 | 2011-09-27 15:00:41 +0200 | [diff] [blame] | 2942 | } |
| 2943 | |
Kamil Rytarowski | a16878d | 2017-09-03 18:33:04 +0200 | [diff] [blame] | 2944 | QTAILQ_FOREACH_SAFE(ml, &submr_print_queue, mrqueue, next_ml) { |
Jan Kiszka | 9479c57 | 2011-09-27 15:00:41 +0200 | [diff] [blame] | 2945 | g_free(ml); |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 2946 | } |
| 2947 | } |
| 2948 | |
Alexey Kardashevskiy | 5e8fd94 | 2017-09-21 18:51:06 +1000 | [diff] [blame] | 2949 | struct FlatViewInfo { |
| 2950 | fprintf_function mon_printf; |
| 2951 | void *f; |
| 2952 | int counter; |
| 2953 | bool dispatch_tree; |
Alexey Kardashevskiy | fc051ae | 2018-06-04 13:25:11 +1000 | [diff] [blame] | 2954 | bool owner; |
Alexey Kardashevskiy | 5e8fd94 | 2017-09-21 18:51:06 +1000 | [diff] [blame] | 2955 | }; |
| 2956 | |
| 2957 | static void mtree_print_flatview(gpointer key, gpointer value, |
| 2958 | gpointer user_data) |
Peter Xu | 57bb40c | 2017-01-16 16:40:05 +0800 | [diff] [blame] | 2959 | { |
Alexey Kardashevskiy | 5e8fd94 | 2017-09-21 18:51:06 +1000 | [diff] [blame] | 2960 | FlatView *view = key; |
| 2961 | GArray *fv_address_spaces = value; |
| 2962 | struct FlatViewInfo *fvi = user_data; |
| 2963 | fprintf_function p = fvi->mon_printf; |
| 2964 | void *f = fvi->f; |
Peter Xu | 57bb40c | 2017-01-16 16:40:05 +0800 | [diff] [blame] | 2965 | FlatRange *range = &view->ranges[0]; |
| 2966 | MemoryRegion *mr; |
| 2967 | int n = view->nr; |
Alexey Kardashevskiy | 5e8fd94 | 2017-09-21 18:51:06 +1000 | [diff] [blame] | 2968 | int i; |
| 2969 | AddressSpace *as; |
| 2970 | |
| 2971 | p(f, "FlatView #%d\n", fvi->counter); |
| 2972 | ++fvi->counter; |
| 2973 | |
| 2974 | for (i = 0; i < fv_address_spaces->len; ++i) { |
| 2975 | as = g_array_index(fv_address_spaces, AddressSpace*, i); |
| 2976 | p(f, " AS \"%s\", root: %s", as->name, memory_region_name(as->root)); |
| 2977 | if (as->root->alias) { |
| 2978 | p(f, ", alias %s", memory_region_name(as->root->alias)); |
| 2979 | } |
| 2980 | p(f, "\n"); |
| 2981 | } |
| 2982 | |
| 2983 | p(f, " Root memory region: %s\n", |
| 2984 | view->root ? memory_region_name(view->root) : "(none)"); |
Peter Xu | 57bb40c | 2017-01-16 16:40:05 +0800 | [diff] [blame] | 2985 | |
| 2986 | if (n <= 0) { |
Alexey Kardashevskiy | 5e8fd94 | 2017-09-21 18:51:06 +1000 | [diff] [blame] | 2987 | p(f, MTREE_INDENT "No rendered FlatView\n\n"); |
Peter Xu | 57bb40c | 2017-01-16 16:40:05 +0800 | [diff] [blame] | 2988 | return; |
| 2989 | } |
| 2990 | |
| 2991 | while (n--) { |
| 2992 | mr = range->mr; |
Paolo Bonzini | 377a07a | 2017-03-02 22:49:41 +0100 | [diff] [blame] | 2993 | if (range->offset_in_region) { |
| 2994 | p(f, MTREE_INDENT TARGET_FMT_plx "-" |
Marc-André Lureau | c26763f | 2018-10-03 15:44:52 +0400 | [diff] [blame] | 2995 | TARGET_FMT_plx " (prio %d, %s%s): %s @" TARGET_FMT_plx, |
Paolo Bonzini | 377a07a | 2017-03-02 22:49:41 +0100 | [diff] [blame] | 2996 | int128_get64(range->addr.start), |
| 2997 | int128_get64(range->addr.start) + MR_SIZE(range->addr.size), |
| 2998 | mr->priority, |
Marc-André Lureau | c26763f | 2018-10-03 15:44:52 +0400 | [diff] [blame] | 2999 | range->nonvolatile ? "nv-" : "", |
Paolo Bonzini | 377a07a | 2017-03-02 22:49:41 +0100 | [diff] [blame] | 3000 | range->readonly ? "rom" : memory_region_type(mr), |
| 3001 | memory_region_name(mr), |
| 3002 | range->offset_in_region); |
| 3003 | } else { |
| 3004 | p(f, MTREE_INDENT TARGET_FMT_plx "-" |
Marc-André Lureau | c26763f | 2018-10-03 15:44:52 +0400 | [diff] [blame] | 3005 | TARGET_FMT_plx " (prio %d, %s%s): %s", |
Paolo Bonzini | 377a07a | 2017-03-02 22:49:41 +0100 | [diff] [blame] | 3006 | int128_get64(range->addr.start), |
| 3007 | int128_get64(range->addr.start) + MR_SIZE(range->addr.size), |
| 3008 | mr->priority, |
Marc-André Lureau | c26763f | 2018-10-03 15:44:52 +0400 | [diff] [blame] | 3009 | range->nonvolatile ? "nv-" : "", |
Paolo Bonzini | 377a07a | 2017-03-02 22:49:41 +0100 | [diff] [blame] | 3010 | range->readonly ? "rom" : memory_region_type(mr), |
| 3011 | memory_region_name(mr)); |
| 3012 | } |
Alexey Kardashevskiy | fc051ae | 2018-06-04 13:25:11 +1000 | [diff] [blame] | 3013 | if (fvi->owner) { |
| 3014 | mtree_print_mr_owner(p, f, mr); |
| 3015 | } |
| 3016 | p(f, "\n"); |
Peter Xu | 57bb40c | 2017-01-16 16:40:05 +0800 | [diff] [blame] | 3017 | range++; |
| 3018 | } |
| 3019 | |
Alexey Kardashevskiy | 5e8fd94 | 2017-09-21 18:51:06 +1000 | [diff] [blame] | 3020 | #if !defined(CONFIG_USER_ONLY) |
| 3021 | if (fvi->dispatch_tree && view->root) { |
| 3022 | mtree_print_dispatch(p, f, view->dispatch, view->root); |
| 3023 | } |
| 3024 | #endif |
| 3025 | |
| 3026 | p(f, "\n"); |
Peter Xu | 57bb40c | 2017-01-16 16:40:05 +0800 | [diff] [blame] | 3027 | } |
| 3028 | |
Alexey Kardashevskiy | 5e8fd94 | 2017-09-21 18:51:06 +1000 | [diff] [blame] | 3029 | static gboolean mtree_info_flatview_free(gpointer key, gpointer value, |
| 3030 | gpointer user_data) |
| 3031 | { |
| 3032 | FlatView *view = key; |
| 3033 | GArray *fv_address_spaces = value; |
| 3034 | |
| 3035 | g_array_unref(fv_address_spaces); |
| 3036 | flatview_unref(view); |
| 3037 | |
| 3038 | return true; |
| 3039 | } |
| 3040 | |
| 3041 | void mtree_info(fprintf_function mon_printf, void *f, bool flatview, |
Alexey Kardashevskiy | fc051ae | 2018-06-04 13:25:11 +1000 | [diff] [blame] | 3042 | bool dispatch_tree, bool owner) |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 3043 | { |
| 3044 | MemoryRegionListHead ml_head; |
| 3045 | MemoryRegionList *ml, *ml2; |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 3046 | AddressSpace *as; |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 3047 | |
Peter Xu | 57bb40c | 2017-01-16 16:40:05 +0800 | [diff] [blame] | 3048 | if (flatview) { |
Alexey Kardashevskiy | 5e8fd94 | 2017-09-21 18:51:06 +1000 | [diff] [blame] | 3049 | FlatView *view; |
| 3050 | struct FlatViewInfo fvi = { |
| 3051 | .mon_printf = mon_printf, |
| 3052 | .f = f, |
| 3053 | .counter = 0, |
Alexey Kardashevskiy | fc051ae | 2018-06-04 13:25:11 +1000 | [diff] [blame] | 3054 | .dispatch_tree = dispatch_tree, |
| 3055 | .owner = owner, |
Alexey Kardashevskiy | 5e8fd94 | 2017-09-21 18:51:06 +1000 | [diff] [blame] | 3056 | }; |
| 3057 | GArray *fv_address_spaces; |
| 3058 | GHashTable *views = g_hash_table_new(g_direct_hash, g_direct_equal); |
| 3059 | |
| 3060 | /* Gather all FVs in one table */ |
Peter Xu | 57bb40c | 2017-01-16 16:40:05 +0800 | [diff] [blame] | 3061 | QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) { |
Alexey Kardashevskiy | 5e8fd94 | 2017-09-21 18:51:06 +1000 | [diff] [blame] | 3062 | view = address_space_get_flatview(as); |
| 3063 | |
| 3064 | fv_address_spaces = g_hash_table_lookup(views, view); |
| 3065 | if (!fv_address_spaces) { |
| 3066 | fv_address_spaces = g_array_new(false, false, sizeof(as)); |
| 3067 | g_hash_table_insert(views, view, fv_address_spaces); |
| 3068 | } |
| 3069 | |
| 3070 | g_array_append_val(fv_address_spaces, as); |
Peter Xu | 57bb40c | 2017-01-16 16:40:05 +0800 | [diff] [blame] | 3071 | } |
Alexey Kardashevskiy | 5e8fd94 | 2017-09-21 18:51:06 +1000 | [diff] [blame] | 3072 | |
| 3073 | /* Print */ |
| 3074 | g_hash_table_foreach(views, mtree_print_flatview, &fvi); |
| 3075 | |
| 3076 | /* Free */ |
| 3077 | g_hash_table_foreach_remove(views, mtree_info_flatview_free, 0); |
| 3078 | g_hash_table_unref(views); |
| 3079 | |
Peter Xu | 57bb40c | 2017-01-16 16:40:05 +0800 | [diff] [blame] | 3080 | return; |
| 3081 | } |
| 3082 | |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 3083 | QTAILQ_INIT(&ml_head); |
| 3084 | |
Avi Kivity | 0d673e3 | 2012-10-02 15:28:50 +0200 | [diff] [blame] | 3085 | QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) { |
Gerd Hoffmann | e48816a | 2015-04-08 12:53:47 +0200 | [diff] [blame] | 3086 | mon_printf(f, "address-space: %s\n", as->name); |
Alexey Kardashevskiy | fc051ae | 2018-06-04 13:25:11 +1000 | [diff] [blame] | 3087 | mtree_print_mr(mon_printf, f, as->root, 1, 0, &ml_head, owner); |
Gerd Hoffmann | e48816a | 2015-04-08 12:53:47 +0200 | [diff] [blame] | 3088 | mon_printf(f, "\n"); |
Blue Swirl | b9f9be8 | 2012-03-10 16:58:35 +0000 | [diff] [blame] | 3089 | } |
| 3090 | |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 3091 | /* print aliased regions */ |
Kamil Rytarowski | a16878d | 2017-09-03 18:33:04 +0200 | [diff] [blame] | 3092 | QTAILQ_FOREACH(ml, &ml_head, mrqueue) { |
Gerd Hoffmann | e48816a | 2015-04-08 12:53:47 +0200 | [diff] [blame] | 3093 | mon_printf(f, "memory-region: %s\n", memory_region_name(ml->mr)); |
Alexey Kardashevskiy | fc051ae | 2018-06-04 13:25:11 +1000 | [diff] [blame] | 3094 | mtree_print_mr(mon_printf, f, ml->mr, 1, 0, &ml_head, owner); |
Gerd Hoffmann | e48816a | 2015-04-08 12:53:47 +0200 | [diff] [blame] | 3095 | mon_printf(f, "\n"); |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 3096 | } |
| 3097 | |
Kamil Rytarowski | a16878d | 2017-09-03 18:33:04 +0200 | [diff] [blame] | 3098 | QTAILQ_FOREACH_SAFE(ml, &ml_head, mrqueue, ml2) { |
Avi Kivity | 88365e4 | 2011-11-13 12:00:55 +0200 | [diff] [blame] | 3099 | g_free(ml); |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 3100 | } |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 3101 | } |
Peter Crosthwaite | b4fefef | 2014-06-05 23:15:52 -0700 | [diff] [blame] | 3102 | |
Peter Maydell | b08199c | 2017-07-07 15:42:51 +0100 | [diff] [blame] | 3103 | void memory_region_init_ram(MemoryRegion *mr, |
| 3104 | struct Object *owner, |
| 3105 | const char *name, |
| 3106 | uint64_t size, |
| 3107 | Error **errp) |
| 3108 | { |
| 3109 | DeviceState *owner_dev; |
| 3110 | Error *err = NULL; |
| 3111 | |
| 3112 | memory_region_init_ram_nomigrate(mr, owner, name, size, &err); |
| 3113 | if (err) { |
| 3114 | error_propagate(errp, err); |
| 3115 | return; |
| 3116 | } |
| 3117 | /* This will assert if owner is neither NULL nor a DeviceState. |
| 3118 | * We only want the owner here for the purposes of defining a |
| 3119 | * unique name for migration. TODO: Ideally we should implement |
| 3120 | * a naming scheme for Objects which are not DeviceStates, in |
| 3121 | * which case we can relax this restriction. |
| 3122 | */ |
| 3123 | owner_dev = DEVICE(owner); |
| 3124 | vmstate_register_ram(mr, owner_dev); |
| 3125 | } |
| 3126 | |
| 3127 | void memory_region_init_rom(MemoryRegion *mr, |
| 3128 | struct Object *owner, |
| 3129 | const char *name, |
| 3130 | uint64_t size, |
| 3131 | Error **errp) |
| 3132 | { |
| 3133 | DeviceState *owner_dev; |
| 3134 | Error *err = NULL; |
| 3135 | |
| 3136 | memory_region_init_rom_nomigrate(mr, owner, name, size, &err); |
| 3137 | if (err) { |
| 3138 | error_propagate(errp, err); |
| 3139 | return; |
| 3140 | } |
| 3141 | /* This will assert if owner is neither NULL nor a DeviceState. |
| 3142 | * We only want the owner here for the purposes of defining a |
| 3143 | * unique name for migration. TODO: Ideally we should implement |
| 3144 | * a naming scheme for Objects which are not DeviceStates, in |
| 3145 | * which case we can relax this restriction. |
| 3146 | */ |
| 3147 | owner_dev = DEVICE(owner); |
| 3148 | vmstate_register_ram(mr, owner_dev); |
| 3149 | } |
| 3150 | |
| 3151 | void memory_region_init_rom_device(MemoryRegion *mr, |
| 3152 | struct Object *owner, |
| 3153 | const MemoryRegionOps *ops, |
| 3154 | void *opaque, |
| 3155 | const char *name, |
| 3156 | uint64_t size, |
| 3157 | Error **errp) |
| 3158 | { |
| 3159 | DeviceState *owner_dev; |
| 3160 | Error *err = NULL; |
| 3161 | |
| 3162 | memory_region_init_rom_device_nomigrate(mr, owner, ops, opaque, |
| 3163 | name, size, &err); |
| 3164 | if (err) { |
| 3165 | error_propagate(errp, err); |
| 3166 | return; |
| 3167 | } |
| 3168 | /* This will assert if owner is neither NULL nor a DeviceState. |
| 3169 | * We only want the owner here for the purposes of defining a |
| 3170 | * unique name for migration. TODO: Ideally we should implement |
| 3171 | * a naming scheme for Objects which are not DeviceStates, in |
| 3172 | * which case we can relax this restriction. |
| 3173 | */ |
| 3174 | owner_dev = DEVICE(owner); |
| 3175 | vmstate_register_ram(mr, owner_dev); |
| 3176 | } |
| 3177 | |
Peter Crosthwaite | b4fefef | 2014-06-05 23:15:52 -0700 | [diff] [blame] | 3178 | static const TypeInfo memory_region_info = { |
| 3179 | .parent = TYPE_OBJECT, |
| 3180 | .name = TYPE_MEMORY_REGION, |
| 3181 | .instance_size = sizeof(MemoryRegion), |
| 3182 | .instance_init = memory_region_initfn, |
| 3183 | .instance_finalize = memory_region_finalize, |
| 3184 | }; |
| 3185 | |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 3186 | static const TypeInfo iommu_memory_region_info = { |
| 3187 | .parent = TYPE_MEMORY_REGION, |
| 3188 | .name = TYPE_IOMMU_MEMORY_REGION, |
Alexey Kardashevskiy | 1221a47 | 2017-07-11 13:56:20 +1000 | [diff] [blame] | 3189 | .class_size = sizeof(IOMMUMemoryRegionClass), |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 3190 | .instance_size = sizeof(IOMMUMemoryRegion), |
| 3191 | .instance_init = iommu_memory_region_initfn, |
Alexey Kardashevskiy | 1221a47 | 2017-07-11 13:56:20 +1000 | [diff] [blame] | 3192 | .abstract = true, |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 3193 | }; |
| 3194 | |
Peter Crosthwaite | b4fefef | 2014-06-05 23:15:52 -0700 | [diff] [blame] | 3195 | static void memory_register_types(void) |
| 3196 | { |
| 3197 | type_register_static(&memory_region_info); |
Alexey Kardashevskiy | 3df9d74 | 2017-07-11 13:56:19 +1000 | [diff] [blame] | 3198 | type_register_static(&iommu_memory_region_info); |
Peter Crosthwaite | b4fefef | 2014-06-05 23:15:52 -0700 | [diff] [blame] | 3199 | } |
| 3200 | |
| 3201 | type_init(memory_register_types) |