1 /* 2 * QEMU migration/snapshot declarations 3 * 4 * Copyright (c) 2009-2011 Red Hat, Inc. 5 * 6 * Original author: Juan Quintela <quintela@redhat.com> 7 * 8 * Permission is hereby granted, free of charge, to any person obtaining a copy 9 * of this software and associated documentation files (the "Software"), to deal 10 * in the Software without restriction, including without limitation the rights 11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 12 * copies of the Software, and to permit persons to whom the Software is 13 * furnished to do so, subject to the following conditions: 14 * 15 * The above copyright notice and this permission notice shall be included in 16 * all copies or substantial portions of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 21 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 24 * THE SOFTWARE. 25 */ 26 27 #ifndef QEMU_VMSTATE_H 28 #define QEMU_VMSTATE_H 29 30 #ifndef CONFIG_USER_ONLY 31 #include "migration/qemu-file.h" 32 #endif 33 #include "migration/qjson.h" 34 35 typedef void SaveStateHandler(QEMUFile *f, void *opaque); 36 typedef int LoadStateHandler(QEMUFile *f, void *opaque, int version_id); 37 38 typedef struct SaveVMHandlers { 39 /* This runs inside the iothread lock. */ 40 void (*set_params)(const MigrationParams *params, void * opaque); 41 SaveStateHandler *save_state; 42 43 void (*cleanup)(void *opaque); 44 int (*save_live_complete_postcopy)(QEMUFile *f, void *opaque); 45 int (*save_live_complete_precopy)(QEMUFile *f, void *opaque); 46 47 /* This runs both outside and inside the iothread lock. */ 48 bool (*is_active)(void *opaque); 49 50 /* This runs outside the iothread lock in the migration case, and 51 * within the lock in the savevm case. The callback had better only 52 * use data that is local to the migration thread or protected 53 * by other locks. 54 */ 55 int (*save_live_iterate)(QEMUFile *f, void *opaque); 56 57 /* This runs outside the iothread lock! */ 58 int (*save_live_setup)(QEMUFile *f, void *opaque); 59 void (*save_live_pending)(QEMUFile *f, void *opaque, uint64_t max_size, 60 uint64_t *non_postcopiable_pending, 61 uint64_t *postcopiable_pending); 62 LoadStateHandler *load_state; 63 } SaveVMHandlers; 64 65 int register_savevm(DeviceState *dev, 66 const char *idstr, 67 int instance_id, 68 int version_id, 69 SaveStateHandler *save_state, 70 LoadStateHandler *load_state, 71 void *opaque); 72 73 int register_savevm_live(DeviceState *dev, 74 const char *idstr, 75 int instance_id, 76 int version_id, 77 SaveVMHandlers *ops, 78 void *opaque); 79 80 void unregister_savevm(DeviceState *dev, const char *idstr, void *opaque); 81 82 typedef struct VMStateInfo VMStateInfo; 83 typedef struct VMStateDescription VMStateDescription; 84 85 struct VMStateInfo { 86 const char *name; 87 int (*get)(QEMUFile *f, void *pv, size_t size); 88 void (*put)(QEMUFile *f, void *pv, size_t size); 89 }; 90 91 enum VMStateFlags { 92 /* Ignored */ 93 VMS_SINGLE = 0x001, 94 95 /* The struct member at opaque + VMStateField.offset is a pointer 96 * to the actual field (e.g. struct a { uint8_t *b; 97 * }). Dereference the pointer before using it as basis for 98 * further pointer arithmetic (see e.g. VMS_ARRAY). Does not 99 * affect the meaning of VMStateField.num_offset or 100 * VMStateField.size_offset; see VMS_VARRAY* and VMS_VBUFFER for 101 * those. */ 102 VMS_POINTER = 0x002, 103 104 /* The field is an array of fixed size. VMStateField.num contains 105 * the number of entries in the array. The size of each entry is 106 * given by VMStateField.size and / or opaque + 107 * VMStateField.size_offset; see VMS_VBUFFER and 108 * VMS_MULTIPLY. Each array entry will be processed individually 109 * (VMStateField.info.get()/put() if VMS_STRUCT is not set, 110 * recursion into VMStateField.vmsd if VMS_STRUCT is set). May not 111 * be combined with VMS_VARRAY*. */ 112 VMS_ARRAY = 0x004, 113 114 /* The field is itself a struct, containing one or more 115 * fields. Recurse into VMStateField.vmsd. Most useful in 116 * combination with VMS_ARRAY / VMS_VARRAY*, recursing into each 117 * array entry. */ 118 VMS_STRUCT = 0x008, 119 120 /* The field is an array of variable size. The int32_t at opaque + 121 * VMStateField.num_offset contains the number of entries in the 122 * array. See the VMS_ARRAY description regarding array handling 123 * in general. May not be combined with VMS_ARRAY or any other 124 * VMS_VARRAY*. */ 125 VMS_VARRAY_INT32 = 0x010, 126 127 /* Ignored */ 128 VMS_BUFFER = 0x020, 129 130 /* The field is a (fixed-size or variable-size) array of pointers 131 * (e.g. struct a { uint8_t *b[]; }). Dereference each array entry 132 * before using it. Note: Does not imply any one of VMS_ARRAY / 133 * VMS_VARRAY*; these need to be set explicitly. */ 134 VMS_ARRAY_OF_POINTER = 0x040, 135 136 /* The field is an array of variable size. The uint16_t at opaque 137 * + VMStateField.num_offset (subject to VMS_MULTIPLY_ELEMENTS) 138 * contains the number of entries in the array. See the VMS_ARRAY 139 * description regarding array handling in general. May not be 140 * combined with VMS_ARRAY or any other VMS_VARRAY*. */ 141 VMS_VARRAY_UINT16 = 0x080, 142 143 /* The size of the individual entries (a single array entry if 144 * VMS_ARRAY or any of VMS_VARRAY* are set, or the field itself if 145 * neither is set) is variable (i.e. not known at compile-time), 146 * but the same for all entries. Use the int32_t at opaque + 147 * VMStateField.size_offset (subject to VMS_MULTIPLY) to determine 148 * the size of each (and every) entry. */ 149 VMS_VBUFFER = 0x100, 150 151 /* Multiply the entry size given by the int32_t at opaque + 152 * VMStateField.size_offset (see VMS_VBUFFER description) with 153 * VMStateField.size to determine the number of bytes to be 154 * allocated. Only valid in combination with VMS_VBUFFER. */ 155 VMS_MULTIPLY = 0x200, 156 157 /* The field is an array of variable size. The uint8_t at opaque + 158 * VMStateField.num_offset (subject to VMS_MULTIPLY_ELEMENTS) 159 * contains the number of entries in the array. See the VMS_ARRAY 160 * description regarding array handling in general. May not be 161 * combined with VMS_ARRAY or any other VMS_VARRAY*. */ 162 VMS_VARRAY_UINT8 = 0x400, 163 164 /* The field is an array of variable size. The uint32_t at opaque 165 * + VMStateField.num_offset (subject to VMS_MULTIPLY_ELEMENTS) 166 * contains the number of entries in the array. See the VMS_ARRAY 167 * description regarding array handling in general. May not be 168 * combined with VMS_ARRAY or any other VMS_VARRAY*. */ 169 VMS_VARRAY_UINT32 = 0x800, 170 171 /* Fail loading the serialised VM state if this field is missing 172 * from the input. */ 173 VMS_MUST_EXIST = 0x1000, 174 175 /* When loading serialised VM state, allocate memory for the 176 * (entire) field. Only valid in combination with 177 * VMS_POINTER. Note: Not all combinations with other flags are 178 * currently supported, e.g. VMS_ALLOC|VMS_ARRAY_OF_POINTER won't 179 * cause the individual entries to be allocated. */ 180 VMS_ALLOC = 0x2000, 181 182 /* Multiply the number of entries given by the integer at opaque + 183 * VMStateField.num_offset (see VMS_VARRAY*) with VMStateField.num 184 * to determine the number of entries in the array. Only valid in 185 * combination with one of VMS_VARRAY*. */ 186 VMS_MULTIPLY_ELEMENTS = 0x4000, 187 }; 188 189 typedef enum { 190 MIG_PRI_DEFAULT = 0, 191 MIG_PRI_IOMMU, /* Must happen before PCI devices */ 192 MIG_PRI_MAX, 193 } MigrationPriority; 194 195 typedef struct { 196 const char *name; 197 size_t offset; 198 size_t size; 199 size_t start; 200 int num; 201 size_t num_offset; 202 size_t size_offset; 203 const VMStateInfo *info; 204 enum VMStateFlags flags; 205 const VMStateDescription *vmsd; 206 int version_id; 207 bool (*field_exists)(void *opaque, int version_id); 208 } VMStateField; 209 210 struct VMStateDescription { 211 const char *name; 212 int unmigratable; 213 int version_id; 214 int minimum_version_id; 215 int minimum_version_id_old; 216 MigrationPriority priority; 217 LoadStateHandler *load_state_old; 218 int (*pre_load)(void *opaque); 219 int (*post_load)(void *opaque, int version_id); 220 void (*pre_save)(void *opaque); 221 bool (*needed)(void *opaque); 222 VMStateField *fields; 223 const VMStateDescription **subsections; 224 }; 225 226 extern const VMStateDescription vmstate_dummy; 227 228 extern const VMStateInfo vmstate_info_bool; 229 230 extern const VMStateInfo vmstate_info_int8; 231 extern const VMStateInfo vmstate_info_int16; 232 extern const VMStateInfo vmstate_info_int32; 233 extern const VMStateInfo vmstate_info_int64; 234 235 extern const VMStateInfo vmstate_info_uint8_equal; 236 extern const VMStateInfo vmstate_info_uint16_equal; 237 extern const VMStateInfo vmstate_info_int32_equal; 238 extern const VMStateInfo vmstate_info_uint32_equal; 239 extern const VMStateInfo vmstate_info_uint64_equal; 240 extern const VMStateInfo vmstate_info_int32_le; 241 242 extern const VMStateInfo vmstate_info_uint8; 243 extern const VMStateInfo vmstate_info_uint16; 244 extern const VMStateInfo vmstate_info_uint32; 245 extern const VMStateInfo vmstate_info_uint64; 246 247 extern const VMStateInfo vmstate_info_float64; 248 extern const VMStateInfo vmstate_info_cpudouble; 249 250 extern const VMStateInfo vmstate_info_timer; 251 extern const VMStateInfo vmstate_info_buffer; 252 extern const VMStateInfo vmstate_info_unused_buffer; 253 extern const VMStateInfo vmstate_info_bitmap; 254 255 #define type_check_2darray(t1,t2,n,m) ((t1(*)[n][m])0 - (t2*)0) 256 #define type_check_array(t1,t2,n) ((t1(*)[n])0 - (t2*)0) 257 #define type_check_pointer(t1,t2) ((t1**)0 - (t2*)0) 258 259 #define vmstate_offset_value(_state, _field, _type) \ 260 (offsetof(_state, _field) + \ 261 type_check(_type, typeof_field(_state, _field))) 262 263 #define vmstate_offset_pointer(_state, _field, _type) \ 264 (offsetof(_state, _field) + \ 265 type_check_pointer(_type, typeof_field(_state, _field))) 266 267 #define vmstate_offset_array(_state, _field, _type, _num) \ 268 (offsetof(_state, _field) + \ 269 type_check_array(_type, typeof_field(_state, _field), _num)) 270 271 #define vmstate_offset_2darray(_state, _field, _type, _n1, _n2) \ 272 (offsetof(_state, _field) + \ 273 type_check_2darray(_type, typeof_field(_state, _field), _n1, _n2)) 274 275 #define vmstate_offset_sub_array(_state, _field, _type, _start) \ 276 vmstate_offset_value(_state, _field[_start], _type) 277 278 #define vmstate_offset_buffer(_state, _field) \ 279 vmstate_offset_array(_state, _field, uint8_t, \ 280 sizeof(typeof_field(_state, _field))) 281 282 #define VMSTATE_SINGLE_TEST(_field, _state, _test, _version, _info, _type) { \ 283 .name = (stringify(_field)), \ 284 .version_id = (_version), \ 285 .field_exists = (_test), \ 286 .size = sizeof(_type), \ 287 .info = &(_info), \ 288 .flags = VMS_SINGLE, \ 289 .offset = vmstate_offset_value(_state, _field, _type), \ 290 } 291 292 /* Validate state using a boolean predicate. */ 293 #define VMSTATE_VALIDATE(_name, _test) { \ 294 .name = (_name), \ 295 .field_exists = (_test), \ 296 .flags = VMS_ARRAY | VMS_MUST_EXIST, \ 297 .num = 0, /* 0 elements: no data, only run _test */ \ 298 } 299 300 #define VMSTATE_POINTER(_field, _state, _version, _info, _type) { \ 301 .name = (stringify(_field)), \ 302 .version_id = (_version), \ 303 .info = &(_info), \ 304 .size = sizeof(_type), \ 305 .flags = VMS_SINGLE|VMS_POINTER, \ 306 .offset = vmstate_offset_value(_state, _field, _type), \ 307 } 308 309 #define VMSTATE_POINTER_TEST(_field, _state, _test, _info, _type) { \ 310 .name = (stringify(_field)), \ 311 .info = &(_info), \ 312 .field_exists = (_test), \ 313 .size = sizeof(_type), \ 314 .flags = VMS_SINGLE|VMS_POINTER, \ 315 .offset = vmstate_offset_value(_state, _field, _type), \ 316 } 317 318 #define VMSTATE_ARRAY(_field, _state, _num, _version, _info, _type) {\ 319 .name = (stringify(_field)), \ 320 .version_id = (_version), \ 321 .num = (_num), \ 322 .info = &(_info), \ 323 .size = sizeof(_type), \ 324 .flags = VMS_ARRAY, \ 325 .offset = vmstate_offset_array(_state, _field, _type, _num), \ 326 } 327 328 #define VMSTATE_2DARRAY(_field, _state, _n1, _n2, _version, _info, _type) { \ 329 .name = (stringify(_field)), \ 330 .version_id = (_version), \ 331 .num = (_n1) * (_n2), \ 332 .info = &(_info), \ 333 .size = sizeof(_type), \ 334 .flags = VMS_ARRAY, \ 335 .offset = vmstate_offset_2darray(_state, _field, _type, _n1, _n2), \ 336 } 337 338 #define VMSTATE_VARRAY_MULTIPLY(_field, _state, _field_num, _multiply, _info, _type) { \ 339 .name = (stringify(_field)), \ 340 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\ 341 .num = (_multiply), \ 342 .info = &(_info), \ 343 .size = sizeof(_type), \ 344 .flags = VMS_VARRAY_UINT32|VMS_MULTIPLY_ELEMENTS, \ 345 .offset = offsetof(_state, _field), \ 346 } 347 348 #define VMSTATE_ARRAY_TEST(_field, _state, _num, _test, _info, _type) {\ 349 .name = (stringify(_field)), \ 350 .field_exists = (_test), \ 351 .num = (_num), \ 352 .info = &(_info), \ 353 .size = sizeof(_type), \ 354 .flags = VMS_ARRAY, \ 355 .offset = vmstate_offset_array(_state, _field, _type, _num),\ 356 } 357 358 #define VMSTATE_SUB_ARRAY(_field, _state, _start, _num, _version, _info, _type) { \ 359 .name = (stringify(_field)), \ 360 .version_id = (_version), \ 361 .num = (_num), \ 362 .info = &(_info), \ 363 .size = sizeof(_type), \ 364 .flags = VMS_ARRAY, \ 365 .offset = vmstate_offset_sub_array(_state, _field, _type, _start), \ 366 } 367 368 #define VMSTATE_ARRAY_INT32_UNSAFE(_field, _state, _field_num, _info, _type) {\ 369 .name = (stringify(_field)), \ 370 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \ 371 .info = &(_info), \ 372 .size = sizeof(_type), \ 373 .flags = VMS_VARRAY_INT32, \ 374 .offset = offsetof(_state, _field), \ 375 } 376 377 #define VMSTATE_VARRAY_INT32(_field, _state, _field_num, _version, _info, _type) {\ 378 .name = (stringify(_field)), \ 379 .version_id = (_version), \ 380 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \ 381 .info = &(_info), \ 382 .size = sizeof(_type), \ 383 .flags = VMS_VARRAY_INT32|VMS_POINTER, \ 384 .offset = vmstate_offset_pointer(_state, _field, _type), \ 385 } 386 387 #define VMSTATE_VARRAY_UINT32(_field, _state, _field_num, _version, _info, _type) {\ 388 .name = (stringify(_field)), \ 389 .version_id = (_version), \ 390 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\ 391 .info = &(_info), \ 392 .size = sizeof(_type), \ 393 .flags = VMS_VARRAY_UINT32|VMS_POINTER, \ 394 .offset = vmstate_offset_pointer(_state, _field, _type), \ 395 } 396 397 #define VMSTATE_VARRAY_UINT32_ALLOC(_field, _state, _field_num, _version, _info, _type) {\ 398 .name = (stringify(_field)), \ 399 .version_id = (_version), \ 400 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\ 401 .info = &(_info), \ 402 .size = sizeof(_type), \ 403 .flags = VMS_VARRAY_UINT32|VMS_POINTER|VMS_ALLOC, \ 404 .offset = vmstate_offset_pointer(_state, _field, _type), \ 405 } 406 407 #define VMSTATE_VARRAY_UINT16_UNSAFE(_field, _state, _field_num, _version, _info, _type) {\ 408 .name = (stringify(_field)), \ 409 .version_id = (_version), \ 410 .num_offset = vmstate_offset_value(_state, _field_num, uint16_t),\ 411 .info = &(_info), \ 412 .size = sizeof(_type), \ 413 .flags = VMS_VARRAY_UINT16, \ 414 .offset = offsetof(_state, _field), \ 415 } 416 417 #define VMSTATE_STRUCT_TEST(_field, _state, _test, _version, _vmsd, _type) { \ 418 .name = (stringify(_field)), \ 419 .version_id = (_version), \ 420 .field_exists = (_test), \ 421 .vmsd = &(_vmsd), \ 422 .size = sizeof(_type), \ 423 .flags = VMS_STRUCT, \ 424 .offset = vmstate_offset_value(_state, _field, _type), \ 425 } 426 427 #define VMSTATE_STRUCT_POINTER_V(_field, _state, _version, _vmsd, _type) { \ 428 .name = (stringify(_field)), \ 429 .version_id = (_version), \ 430 .vmsd = &(_vmsd), \ 431 .size = sizeof(_type *), \ 432 .flags = VMS_STRUCT|VMS_POINTER, \ 433 .offset = vmstate_offset_pointer(_state, _field, _type), \ 434 } 435 436 #define VMSTATE_STRUCT_POINTER_TEST_V(_field, _state, _test, _version, _vmsd, _type) { \ 437 .name = (stringify(_field)), \ 438 .version_id = (_version), \ 439 .field_exists = (_test), \ 440 .vmsd = &(_vmsd), \ 441 .size = sizeof(_type *), \ 442 .flags = VMS_STRUCT|VMS_POINTER, \ 443 .offset = vmstate_offset_pointer(_state, _field, _type), \ 444 } 445 446 #define VMSTATE_ARRAY_OF_POINTER(_field, _state, _num, _version, _info, _type) {\ 447 .name = (stringify(_field)), \ 448 .version_id = (_version), \ 449 .num = (_num), \ 450 .info = &(_info), \ 451 .size = sizeof(_type), \ 452 .flags = VMS_ARRAY|VMS_ARRAY_OF_POINTER, \ 453 .offset = vmstate_offset_array(_state, _field, _type, _num), \ 454 } 455 456 #define VMSTATE_ARRAY_OF_POINTER_TO_STRUCT(_f, _s, _n, _v, _vmsd, _type) { \ 457 .name = (stringify(_f)), \ 458 .version_id = (_v), \ 459 .num = (_n), \ 460 .vmsd = &(_vmsd), \ 461 .size = sizeof(_type *), \ 462 .flags = VMS_ARRAY|VMS_STRUCT|VMS_ARRAY_OF_POINTER, \ 463 .offset = vmstate_offset_array(_s, _f, _type*, _n), \ 464 } 465 466 #define VMSTATE_STRUCT_SUB_ARRAY(_field, _state, _start, _num, _version, _vmsd, _type) { \ 467 .name = (stringify(_field)), \ 468 .version_id = (_version), \ 469 .num = (_num), \ 470 .vmsd = &(_vmsd), \ 471 .size = sizeof(_type), \ 472 .flags = VMS_STRUCT|VMS_ARRAY, \ 473 .offset = vmstate_offset_sub_array(_state, _field, _type, _start), \ 474 } 475 476 #define VMSTATE_STRUCT_ARRAY_TEST(_field, _state, _num, _test, _version, _vmsd, _type) { \ 477 .name = (stringify(_field)), \ 478 .num = (_num), \ 479 .field_exists = (_test), \ 480 .version_id = (_version), \ 481 .vmsd = &(_vmsd), \ 482 .size = sizeof(_type), \ 483 .flags = VMS_STRUCT|VMS_ARRAY, \ 484 .offset = vmstate_offset_array(_state, _field, _type, _num),\ 485 } 486 487 #define VMSTATE_STRUCT_VARRAY_UINT8(_field, _state, _field_num, _version, _vmsd, _type) { \ 488 .name = (stringify(_field)), \ 489 .num_offset = vmstate_offset_value(_state, _field_num, uint8_t), \ 490 .version_id = (_version), \ 491 .vmsd = &(_vmsd), \ 492 .size = sizeof(_type), \ 493 .flags = VMS_STRUCT|VMS_VARRAY_UINT8, \ 494 .offset = offsetof(_state, _field), \ 495 } 496 497 /* a variable length array (i.e. _type *_field) but we know the 498 * length 499 */ 500 #define VMSTATE_STRUCT_VARRAY_POINTER_KNOWN(_field, _state, _num, _version, _vmsd, _type) { \ 501 .name = (stringify(_field)), \ 502 .num = (_num), \ 503 .version_id = (_version), \ 504 .vmsd = &(_vmsd), \ 505 .size = sizeof(_type), \ 506 .flags = VMS_STRUCT|VMS_ARRAY|VMS_POINTER, \ 507 .offset = offsetof(_state, _field), \ 508 } 509 510 #define VMSTATE_STRUCT_VARRAY_POINTER_INT32(_field, _state, _field_num, _vmsd, _type) { \ 511 .name = (stringify(_field)), \ 512 .version_id = 0, \ 513 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \ 514 .size = sizeof(_type), \ 515 .vmsd = &(_vmsd), \ 516 .flags = VMS_POINTER | VMS_VARRAY_INT32 | VMS_STRUCT, \ 517 .offset = vmstate_offset_pointer(_state, _field, _type), \ 518 } 519 520 #define VMSTATE_STRUCT_VARRAY_POINTER_UINT32(_field, _state, _field_num, _vmsd, _type) { \ 521 .name = (stringify(_field)), \ 522 .version_id = 0, \ 523 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\ 524 .size = sizeof(_type), \ 525 .vmsd = &(_vmsd), \ 526 .flags = VMS_POINTER | VMS_VARRAY_INT32 | VMS_STRUCT, \ 527 .offset = vmstate_offset_pointer(_state, _field, _type), \ 528 } 529 530 #define VMSTATE_STRUCT_VARRAY_POINTER_UINT16(_field, _state, _field_num, _vmsd, _type) { \ 531 .name = (stringify(_field)), \ 532 .version_id = 0, \ 533 .num_offset = vmstate_offset_value(_state, _field_num, uint16_t),\ 534 .size = sizeof(_type), \ 535 .vmsd = &(_vmsd), \ 536 .flags = VMS_POINTER | VMS_VARRAY_UINT16 | VMS_STRUCT, \ 537 .offset = vmstate_offset_pointer(_state, _field, _type), \ 538 } 539 540 #define VMSTATE_STRUCT_VARRAY_INT32(_field, _state, _field_num, _version, _vmsd, _type) { \ 541 .name = (stringify(_field)), \ 542 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \ 543 .version_id = (_version), \ 544 .vmsd = &(_vmsd), \ 545 .size = sizeof(_type), \ 546 .flags = VMS_STRUCT|VMS_VARRAY_INT32, \ 547 .offset = offsetof(_state, _field), \ 548 } 549 550 #define VMSTATE_STRUCT_VARRAY_UINT32(_field, _state, _field_num, _version, _vmsd, _type) { \ 551 .name = (stringify(_field)), \ 552 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t), \ 553 .version_id = (_version), \ 554 .vmsd = &(_vmsd), \ 555 .size = sizeof(_type), \ 556 .flags = VMS_STRUCT|VMS_VARRAY_UINT32, \ 557 .offset = offsetof(_state, _field), \ 558 } 559 560 #define VMSTATE_STRUCT_VARRAY_ALLOC(_field, _state, _field_num, _version, _vmsd, _type) {\ 561 .name = (stringify(_field)), \ 562 .version_id = (_version), \ 563 .vmsd = &(_vmsd), \ 564 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \ 565 .size = sizeof(_type), \ 566 .flags = VMS_STRUCT|VMS_VARRAY_INT32|VMS_ALLOC|VMS_POINTER, \ 567 .offset = vmstate_offset_pointer(_state, _field, _type), \ 568 } 569 570 #define VMSTATE_STATIC_BUFFER(_field, _state, _version, _test, _start, _size) { \ 571 .name = (stringify(_field)), \ 572 .version_id = (_version), \ 573 .field_exists = (_test), \ 574 .size = (_size - _start), \ 575 .info = &vmstate_info_buffer, \ 576 .flags = VMS_BUFFER, \ 577 .offset = vmstate_offset_buffer(_state, _field) + _start, \ 578 } 579 580 #define VMSTATE_VBUFFER_MULTIPLY(_field, _state, _version, _test, _start, _field_size, _multiply) { \ 581 .name = (stringify(_field)), \ 582 .version_id = (_version), \ 583 .field_exists = (_test), \ 584 .size_offset = vmstate_offset_value(_state, _field_size, uint32_t),\ 585 .size = (_multiply), \ 586 .info = &vmstate_info_buffer, \ 587 .flags = VMS_VBUFFER|VMS_POINTER|VMS_MULTIPLY, \ 588 .offset = offsetof(_state, _field), \ 589 .start = (_start), \ 590 } 591 592 #define VMSTATE_VBUFFER(_field, _state, _version, _test, _start, _field_size) { \ 593 .name = (stringify(_field)), \ 594 .version_id = (_version), \ 595 .field_exists = (_test), \ 596 .size_offset = vmstate_offset_value(_state, _field_size, int32_t),\ 597 .info = &vmstate_info_buffer, \ 598 .flags = VMS_VBUFFER|VMS_POINTER, \ 599 .offset = offsetof(_state, _field), \ 600 .start = (_start), \ 601 } 602 603 #define VMSTATE_VBUFFER_UINT32(_field, _state, _version, _test, _start, _field_size) { \ 604 .name = (stringify(_field)), \ 605 .version_id = (_version), \ 606 .field_exists = (_test), \ 607 .size_offset = vmstate_offset_value(_state, _field_size, uint32_t),\ 608 .info = &vmstate_info_buffer, \ 609 .flags = VMS_VBUFFER|VMS_POINTER, \ 610 .offset = offsetof(_state, _field), \ 611 .start = (_start), \ 612 } 613 614 #define VMSTATE_VBUFFER_ALLOC_UINT32(_field, _state, _version, _test, _start, _field_size) { \ 615 .name = (stringify(_field)), \ 616 .version_id = (_version), \ 617 .field_exists = (_test), \ 618 .size_offset = vmstate_offset_value(_state, _field_size, uint32_t),\ 619 .info = &vmstate_info_buffer, \ 620 .flags = VMS_VBUFFER|VMS_POINTER|VMS_ALLOC, \ 621 .offset = offsetof(_state, _field), \ 622 .start = (_start), \ 623 } 624 625 #define VMSTATE_BUFFER_UNSAFE_INFO_TEST(_field, _state, _test, _version, _info, _size) { \ 626 .name = (stringify(_field)), \ 627 .version_id = (_version), \ 628 .field_exists = (_test), \ 629 .size = (_size), \ 630 .info = &(_info), \ 631 .flags = VMS_BUFFER, \ 632 .offset = offsetof(_state, _field), \ 633 } 634 635 #define VMSTATE_BUFFER_POINTER_UNSAFE(_field, _state, _version, _size) { \ 636 .name = (stringify(_field)), \ 637 .version_id = (_version), \ 638 .size = (_size), \ 639 .info = &vmstate_info_buffer, \ 640 .flags = VMS_BUFFER|VMS_POINTER, \ 641 .offset = offsetof(_state, _field), \ 642 } 643 644 #define VMSTATE_UNUSED_BUFFER(_test, _version, _size) { \ 645 .name = "unused", \ 646 .field_exists = (_test), \ 647 .version_id = (_version), \ 648 .size = (_size), \ 649 .info = &vmstate_info_unused_buffer, \ 650 .flags = VMS_BUFFER, \ 651 } 652 653 /* _field_size should be a int32_t field in the _state struct giving the 654 * size of the bitmap _field in bits. 655 */ 656 #define VMSTATE_BITMAP(_field, _state, _version, _field_size) { \ 657 .name = (stringify(_field)), \ 658 .version_id = (_version), \ 659 .size_offset = vmstate_offset_value(_state, _field_size, int32_t),\ 660 .info = &vmstate_info_bitmap, \ 661 .flags = VMS_VBUFFER|VMS_POINTER, \ 662 .offset = offsetof(_state, _field), \ 663 } 664 665 /* _f : field name 666 _f_n : num of elements field_name 667 _n : num of elements 668 _s : struct state name 669 _v : version 670 */ 671 672 #define VMSTATE_SINGLE(_field, _state, _version, _info, _type) \ 673 VMSTATE_SINGLE_TEST(_field, _state, NULL, _version, _info, _type) 674 675 #define VMSTATE_STRUCT(_field, _state, _version, _vmsd, _type) \ 676 VMSTATE_STRUCT_TEST(_field, _state, NULL, _version, _vmsd, _type) 677 678 #define VMSTATE_STRUCT_POINTER(_field, _state, _vmsd, _type) \ 679 VMSTATE_STRUCT_POINTER_V(_field, _state, 0, _vmsd, _type) 680 681 #define VMSTATE_STRUCT_POINTER_TEST(_field, _state, _test, _vmsd, _type) \ 682 VMSTATE_STRUCT_POINTER_TEST_V(_field, _state, _test, 0, _vmsd, _type) 683 684 #define VMSTATE_STRUCT_ARRAY(_field, _state, _num, _version, _vmsd, _type) \ 685 VMSTATE_STRUCT_ARRAY_TEST(_field, _state, _num, NULL, _version, \ 686 _vmsd, _type) 687 688 #define VMSTATE_BUFFER_UNSAFE_INFO(_field, _state, _version, _info, _size) \ 689 VMSTATE_BUFFER_UNSAFE_INFO_TEST(_field, _state, NULL, _version, _info, \ 690 _size) 691 692 #define VMSTATE_BOOL_V(_f, _s, _v) \ 693 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_bool, bool) 694 695 #define VMSTATE_INT8_V(_f, _s, _v) \ 696 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int8, int8_t) 697 #define VMSTATE_INT16_V(_f, _s, _v) \ 698 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int16, int16_t) 699 #define VMSTATE_INT32_V(_f, _s, _v) \ 700 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int32, int32_t) 701 #define VMSTATE_INT64_V(_f, _s, _v) \ 702 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int64, int64_t) 703 704 #define VMSTATE_UINT8_V(_f, _s, _v) \ 705 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint8, uint8_t) 706 #define VMSTATE_UINT16_V(_f, _s, _v) \ 707 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint16, uint16_t) 708 #define VMSTATE_UINT32_V(_f, _s, _v) \ 709 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint32, uint32_t) 710 #define VMSTATE_UINT64_V(_f, _s, _v) \ 711 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint64, uint64_t) 712 713 #define VMSTATE_BOOL(_f, _s) \ 714 VMSTATE_BOOL_V(_f, _s, 0) 715 716 #define VMSTATE_INT8(_f, _s) \ 717 VMSTATE_INT8_V(_f, _s, 0) 718 #define VMSTATE_INT16(_f, _s) \ 719 VMSTATE_INT16_V(_f, _s, 0) 720 #define VMSTATE_INT32(_f, _s) \ 721 VMSTATE_INT32_V(_f, _s, 0) 722 #define VMSTATE_INT64(_f, _s) \ 723 VMSTATE_INT64_V(_f, _s, 0) 724 725 #define VMSTATE_UINT8(_f, _s) \ 726 VMSTATE_UINT8_V(_f, _s, 0) 727 #define VMSTATE_UINT16(_f, _s) \ 728 VMSTATE_UINT16_V(_f, _s, 0) 729 #define VMSTATE_UINT32(_f, _s) \ 730 VMSTATE_UINT32_V(_f, _s, 0) 731 #define VMSTATE_UINT64(_f, _s) \ 732 VMSTATE_UINT64_V(_f, _s, 0) 733 734 #define VMSTATE_UINT8_EQUAL(_f, _s) \ 735 VMSTATE_SINGLE(_f, _s, 0, vmstate_info_uint8_equal, uint8_t) 736 737 #define VMSTATE_UINT16_EQUAL(_f, _s) \ 738 VMSTATE_SINGLE(_f, _s, 0, vmstate_info_uint16_equal, uint16_t) 739 740 #define VMSTATE_UINT16_EQUAL_V(_f, _s, _v) \ 741 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint16_equal, uint16_t) 742 743 #define VMSTATE_INT32_EQUAL(_f, _s) \ 744 VMSTATE_SINGLE(_f, _s, 0, vmstate_info_int32_equal, int32_t) 745 746 #define VMSTATE_UINT32_EQUAL_V(_f, _s, _v) \ 747 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint32_equal, uint32_t) 748 749 #define VMSTATE_UINT32_EQUAL(_f, _s) \ 750 VMSTATE_UINT32_EQUAL_V(_f, _s, 0) 751 752 #define VMSTATE_UINT64_EQUAL_V(_f, _s, _v) \ 753 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint64_equal, uint64_t) 754 755 #define VMSTATE_UINT64_EQUAL(_f, _s) \ 756 VMSTATE_UINT64_EQUAL_V(_f, _s, 0) 757 758 #define VMSTATE_INT32_POSITIVE_LE(_f, _s) \ 759 VMSTATE_SINGLE(_f, _s, 0, vmstate_info_int32_le, int32_t) 760 761 #define VMSTATE_INT8_TEST(_f, _s, _t) \ 762 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_int8, int8_t) 763 764 #define VMSTATE_INT16_TEST(_f, _s, _t) \ 765 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_int16, int16_t) 766 767 #define VMSTATE_INT32_TEST(_f, _s, _t) \ 768 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_int32, int32_t) 769 770 #define VMSTATE_INT64_TEST(_f, _s, _t) \ 771 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_int64, int64_t) 772 773 #define VMSTATE_UINT8_TEST(_f, _s, _t) \ 774 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint8, uint8_t) 775 776 #define VMSTATE_UINT16_TEST(_f, _s, _t) \ 777 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint16, uint16_t) 778 779 #define VMSTATE_UINT32_TEST(_f, _s, _t) \ 780 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint32, uint32_t) 781 782 #define VMSTATE_UINT64_TEST(_f, _s, _t) \ 783 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint64, uint64_t) 784 785 786 #define VMSTATE_FLOAT64_V(_f, _s, _v) \ 787 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_float64, float64) 788 789 #define VMSTATE_FLOAT64(_f, _s) \ 790 VMSTATE_FLOAT64_V(_f, _s, 0) 791 792 #define VMSTATE_TIMER_PTR_TEST(_f, _s, _test) \ 793 VMSTATE_POINTER_TEST(_f, _s, _test, vmstate_info_timer, QEMUTimer *) 794 795 #define VMSTATE_TIMER_PTR_V(_f, _s, _v) \ 796 VMSTATE_POINTER(_f, _s, _v, vmstate_info_timer, QEMUTimer *) 797 798 #define VMSTATE_TIMER_PTR(_f, _s) \ 799 VMSTATE_TIMER_PTR_V(_f, _s, 0) 800 801 #define VMSTATE_TIMER_PTR_ARRAY(_f, _s, _n) \ 802 VMSTATE_ARRAY_OF_POINTER(_f, _s, _n, 0, vmstate_info_timer, QEMUTimer *) 803 804 #define VMSTATE_TIMER_TEST(_f, _s, _test) \ 805 VMSTATE_SINGLE_TEST(_f, _s, _test, 0, vmstate_info_timer, QEMUTimer) 806 807 #define VMSTATE_TIMER_V(_f, _s, _v) \ 808 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_timer, QEMUTimer) 809 810 #define VMSTATE_TIMER(_f, _s) \ 811 VMSTATE_TIMER_V(_f, _s, 0) 812 813 #define VMSTATE_TIMER_ARRAY(_f, _s, _n) \ 814 VMSTATE_ARRAY(_f, _s, _n, 0, vmstate_info_timer, QEMUTimer) 815 816 #define VMSTATE_BOOL_ARRAY_V(_f, _s, _n, _v) \ 817 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_bool, bool) 818 819 #define VMSTATE_BOOL_ARRAY(_f, _s, _n) \ 820 VMSTATE_BOOL_ARRAY_V(_f, _s, _n, 0) 821 822 #define VMSTATE_UINT16_ARRAY_V(_f, _s, _n, _v) \ 823 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint16, uint16_t) 824 825 #define VMSTATE_UINT16_2DARRAY_V(_f, _s, _n1, _n2, _v) \ 826 VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint16, uint16_t) 827 828 #define VMSTATE_UINT16_ARRAY(_f, _s, _n) \ 829 VMSTATE_UINT16_ARRAY_V(_f, _s, _n, 0) 830 831 #define VMSTATE_UINT16_2DARRAY(_f, _s, _n1, _n2) \ 832 VMSTATE_UINT16_2DARRAY_V(_f, _s, _n1, _n2, 0) 833 834 #define VMSTATE_UINT8_2DARRAY_V(_f, _s, _n1, _n2, _v) \ 835 VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint8, uint8_t) 836 837 #define VMSTATE_UINT8_ARRAY_V(_f, _s, _n, _v) \ 838 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint8, uint8_t) 839 840 #define VMSTATE_UINT8_ARRAY(_f, _s, _n) \ 841 VMSTATE_UINT8_ARRAY_V(_f, _s, _n, 0) 842 843 #define VMSTATE_UINT8_SUB_ARRAY(_f, _s, _start, _num) \ 844 VMSTATE_SUB_ARRAY(_f, _s, _start, _num, 0, vmstate_info_uint8, uint8_t) 845 846 #define VMSTATE_UINT8_2DARRAY(_f, _s, _n1, _n2) \ 847 VMSTATE_UINT8_2DARRAY_V(_f, _s, _n1, _n2, 0) 848 849 #define VMSTATE_UINT32_ARRAY_V(_f, _s, _n, _v) \ 850 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint32, uint32_t) 851 852 #define VMSTATE_UINT32_2DARRAY_V(_f, _s, _n1, _n2, _v) \ 853 VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint32, uint32_t) 854 855 #define VMSTATE_UINT32_ARRAY(_f, _s, _n) \ 856 VMSTATE_UINT32_ARRAY_V(_f, _s, _n, 0) 857 858 #define VMSTATE_UINT32_2DARRAY(_f, _s, _n1, _n2) \ 859 VMSTATE_UINT32_2DARRAY_V(_f, _s, _n1, _n2, 0) 860 861 #define VMSTATE_UINT64_ARRAY_V(_f, _s, _n, _v) \ 862 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint64, uint64_t) 863 864 #define VMSTATE_UINT64_ARRAY(_f, _s, _n) \ 865 VMSTATE_UINT64_ARRAY_V(_f, _s, _n, 0) 866 867 #define VMSTATE_UINT64_2DARRAY(_f, _s, _n1, _n2) \ 868 VMSTATE_UINT64_2DARRAY_V(_f, _s, _n1, _n2, 0) 869 870 #define VMSTATE_UINT64_2DARRAY_V(_f, _s, _n1, _n2, _v) \ 871 VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint64, uint64_t) 872 873 #define VMSTATE_INT16_ARRAY_V(_f, _s, _n, _v) \ 874 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int16, int16_t) 875 876 #define VMSTATE_INT16_ARRAY(_f, _s, _n) \ 877 VMSTATE_INT16_ARRAY_V(_f, _s, _n, 0) 878 879 #define VMSTATE_INT32_ARRAY_V(_f, _s, _n, _v) \ 880 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int32, int32_t) 881 882 #define VMSTATE_INT32_ARRAY(_f, _s, _n) \ 883 VMSTATE_INT32_ARRAY_V(_f, _s, _n, 0) 884 885 #define VMSTATE_UINT32_SUB_ARRAY(_f, _s, _start, _num) \ 886 VMSTATE_SUB_ARRAY(_f, _s, _start, _num, 0, vmstate_info_uint32, uint32_t) 887 888 #define VMSTATE_INT64_ARRAY_V(_f, _s, _n, _v) \ 889 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int64, int64_t) 890 891 #define VMSTATE_INT64_ARRAY(_f, _s, _n) \ 892 VMSTATE_INT64_ARRAY_V(_f, _s, _n, 0) 893 894 #define VMSTATE_FLOAT64_ARRAY_V(_f, _s, _n, _v) \ 895 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_float64, float64) 896 897 #define VMSTATE_FLOAT64_ARRAY(_f, _s, _n) \ 898 VMSTATE_FLOAT64_ARRAY_V(_f, _s, _n, 0) 899 900 #define VMSTATE_CPUDOUBLE_ARRAY_V(_f, _s, _n, _v) \ 901 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_cpudouble, CPU_DoubleU) 902 903 #define VMSTATE_CPUDOUBLE_ARRAY(_f, _s, _n) \ 904 VMSTATE_CPUDOUBLE_ARRAY_V(_f, _s, _n, 0) 905 906 #define VMSTATE_BUFFER_V(_f, _s, _v) \ 907 VMSTATE_STATIC_BUFFER(_f, _s, _v, NULL, 0, sizeof(typeof_field(_s, _f))) 908 909 #define VMSTATE_BUFFER(_f, _s) \ 910 VMSTATE_BUFFER_V(_f, _s, 0) 911 912 #define VMSTATE_PARTIAL_BUFFER(_f, _s, _size) \ 913 VMSTATE_STATIC_BUFFER(_f, _s, 0, NULL, 0, _size) 914 915 #define VMSTATE_BUFFER_START_MIDDLE_V(_f, _s, _start, _v) \ 916 VMSTATE_STATIC_BUFFER(_f, _s, _v, NULL, _start, sizeof(typeof_field(_s, _f))) 917 918 #define VMSTATE_BUFFER_START_MIDDLE(_f, _s, _start) \ 919 VMSTATE_BUFFER_START_MIDDLE_V(_f, _s, _start, 0) 920 921 #define VMSTATE_PARTIAL_VBUFFER(_f, _s, _size) \ 922 VMSTATE_VBUFFER(_f, _s, 0, NULL, 0, _size) 923 924 #define VMSTATE_PARTIAL_VBUFFER_UINT32(_f, _s, _size) \ 925 VMSTATE_VBUFFER_UINT32(_f, _s, 0, NULL, 0, _size) 926 927 #define VMSTATE_SUB_VBUFFER(_f, _s, _start, _size) \ 928 VMSTATE_VBUFFER(_f, _s, 0, NULL, _start, _size) 929 930 #define VMSTATE_BUFFER_TEST(_f, _s, _test) \ 931 VMSTATE_STATIC_BUFFER(_f, _s, 0, _test, 0, sizeof(typeof_field(_s, _f))) 932 933 #define VMSTATE_BUFFER_UNSAFE(_field, _state, _version, _size) \ 934 VMSTATE_BUFFER_UNSAFE_INFO(_field, _state, _version, vmstate_info_buffer, _size) 935 936 #define VMSTATE_UNUSED_V(_v, _size) \ 937 VMSTATE_UNUSED_BUFFER(NULL, _v, _size) 938 939 #define VMSTATE_UNUSED(_size) \ 940 VMSTATE_UNUSED_V(0, _size) 941 942 #define VMSTATE_UNUSED_TEST(_test, _size) \ 943 VMSTATE_UNUSED_BUFFER(_test, 0, _size) 944 945 #define VMSTATE_END_OF_LIST() \ 946 {} 947 948 #define SELF_ANNOUNCE_ROUNDS 5 949 950 void loadvm_free_handlers(MigrationIncomingState *mis); 951 952 int vmstate_load_state(QEMUFile *f, const VMStateDescription *vmsd, 953 void *opaque, int version_id); 954 void vmstate_save_state(QEMUFile *f, const VMStateDescription *vmsd, 955 void *opaque, QJSON *vmdesc); 956 957 bool vmstate_save_needed(const VMStateDescription *vmsd, void *opaque); 958 959 int vmstate_register_with_alias_id(DeviceState *dev, int instance_id, 960 const VMStateDescription *vmsd, 961 void *base, int alias_id, 962 int required_for_version); 963 964 static inline int vmstate_register(DeviceState *dev, int instance_id, 965 const VMStateDescription *vmsd, 966 void *opaque) 967 { 968 return vmstate_register_with_alias_id(dev, instance_id, vmsd, 969 opaque, -1, 0); 970 } 971 972 void vmstate_unregister(DeviceState *dev, const VMStateDescription *vmsd, 973 void *opaque); 974 975 struct MemoryRegion; 976 void vmstate_register_ram(struct MemoryRegion *memory, DeviceState *dev); 977 void vmstate_unregister_ram(struct MemoryRegion *memory, DeviceState *dev); 978 void vmstate_register_ram_global(struct MemoryRegion *memory); 979 980 static inline 981 int64_t self_announce_delay(int round) 982 { 983 assert(round < SELF_ANNOUNCE_ROUNDS && round > 0); 984 /* delay 50ms, 150ms, 250ms, ... */ 985 return 50 + (SELF_ANNOUNCE_ROUNDS - round - 1) * 100; 986 } 987 988 void dump_vmstate_json_to_file(FILE *out_fp); 989 990 #endif 991