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 typedef struct VMStateField VMStateField; 85 86 /* VMStateInfo allows customized migration of objects that don't fit in 87 * any category in VMStateFlags. Additional information is always passed 88 * into get and put in terms of field and vmdesc parameters. However 89 * these two parameters should only be used in cases when customized 90 * handling is needed, such as QTAILQ. For primitive data types such as 91 * integer, field and vmdesc parameters should be ignored inside get/put. 92 */ 93 struct VMStateInfo { 94 const char *name; 95 int (*get)(QEMUFile *f, void *pv, size_t size, VMStateField *field); 96 int (*put)(QEMUFile *f, void *pv, size_t size, VMStateField *field, 97 QJSON *vmdesc); 98 }; 99 100 enum VMStateFlags { 101 /* Ignored */ 102 VMS_SINGLE = 0x001, 103 104 /* The struct member at opaque + VMStateField.offset is a pointer 105 * to the actual field (e.g. struct a { uint8_t *b; 106 * }). Dereference the pointer before using it as basis for 107 * further pointer arithmetic (see e.g. VMS_ARRAY). Does not 108 * affect the meaning of VMStateField.num_offset or 109 * VMStateField.size_offset; see VMS_VARRAY* and VMS_VBUFFER for 110 * those. */ 111 VMS_POINTER = 0x002, 112 113 /* The field is an array of fixed size. VMStateField.num contains 114 * the number of entries in the array. The size of each entry is 115 * given by VMStateField.size and / or opaque + 116 * VMStateField.size_offset; see VMS_VBUFFER and 117 * VMS_MULTIPLY. Each array entry will be processed individually 118 * (VMStateField.info.get()/put() if VMS_STRUCT is not set, 119 * recursion into VMStateField.vmsd if VMS_STRUCT is set). May not 120 * be combined with VMS_VARRAY*. */ 121 VMS_ARRAY = 0x004, 122 123 /* The field is itself a struct, containing one or more 124 * fields. Recurse into VMStateField.vmsd. Most useful in 125 * combination with VMS_ARRAY / VMS_VARRAY*, recursing into each 126 * array entry. */ 127 VMS_STRUCT = 0x008, 128 129 /* The field is an array of variable size. The int32_t at opaque + 130 * VMStateField.num_offset contains the number of entries in the 131 * array. See the VMS_ARRAY description regarding array handling 132 * in general. May not be combined with VMS_ARRAY or any other 133 * VMS_VARRAY*. */ 134 VMS_VARRAY_INT32 = 0x010, 135 136 /* Ignored */ 137 VMS_BUFFER = 0x020, 138 139 /* The field is a (fixed-size or variable-size) array of pointers 140 * (e.g. struct a { uint8_t *b[]; }). Dereference each array entry 141 * before using it. Note: Does not imply any one of VMS_ARRAY / 142 * VMS_VARRAY*; these need to be set explicitly. */ 143 VMS_ARRAY_OF_POINTER = 0x040, 144 145 /* The field is an array of variable size. The uint16_t at opaque 146 * + VMStateField.num_offset (subject to VMS_MULTIPLY_ELEMENTS) 147 * contains the number of entries in the array. See the VMS_ARRAY 148 * description regarding array handling in general. May not be 149 * combined with VMS_ARRAY or any other VMS_VARRAY*. */ 150 VMS_VARRAY_UINT16 = 0x080, 151 152 /* The size of the individual entries (a single array entry if 153 * VMS_ARRAY or any of VMS_VARRAY* are set, or the field itself if 154 * neither is set) is variable (i.e. not known at compile-time), 155 * but the same for all entries. Use the int32_t at opaque + 156 * VMStateField.size_offset (subject to VMS_MULTIPLY) to determine 157 * the size of each (and every) entry. */ 158 VMS_VBUFFER = 0x100, 159 160 /* Multiply the entry size given by the int32_t at opaque + 161 * VMStateField.size_offset (see VMS_VBUFFER description) with 162 * VMStateField.size to determine the number of bytes to be 163 * allocated. Only valid in combination with VMS_VBUFFER. */ 164 VMS_MULTIPLY = 0x200, 165 166 /* The field is an array of variable size. The uint8_t at opaque + 167 * VMStateField.num_offset (subject to VMS_MULTIPLY_ELEMENTS) 168 * contains the number of entries in the array. See the VMS_ARRAY 169 * description regarding array handling in general. May not be 170 * combined with VMS_ARRAY or any other VMS_VARRAY*. */ 171 VMS_VARRAY_UINT8 = 0x400, 172 173 /* The field is an array of variable size. The uint32_t at opaque 174 * + VMStateField.num_offset (subject to VMS_MULTIPLY_ELEMENTS) 175 * contains the number of entries in the array. See the VMS_ARRAY 176 * description regarding array handling in general. May not be 177 * combined with VMS_ARRAY or any other VMS_VARRAY*. */ 178 VMS_VARRAY_UINT32 = 0x800, 179 180 /* Fail loading the serialised VM state if this field is missing 181 * from the input. */ 182 VMS_MUST_EXIST = 0x1000, 183 184 /* When loading serialised VM state, allocate memory for the 185 * (entire) field. Only valid in combination with 186 * VMS_POINTER. Note: Not all combinations with other flags are 187 * currently supported, e.g. VMS_ALLOC|VMS_ARRAY_OF_POINTER won't 188 * cause the individual entries to be allocated. */ 189 VMS_ALLOC = 0x2000, 190 191 /* Multiply the number of entries given by the integer at opaque + 192 * VMStateField.num_offset (see VMS_VARRAY*) with VMStateField.num 193 * to determine the number of entries in the array. Only valid in 194 * combination with one of VMS_VARRAY*. */ 195 VMS_MULTIPLY_ELEMENTS = 0x4000, 196 }; 197 198 typedef enum { 199 MIG_PRI_DEFAULT = 0, 200 MIG_PRI_IOMMU, /* Must happen before PCI devices */ 201 MIG_PRI_MAX, 202 } MigrationPriority; 203 204 struct VMStateField { 205 const char *name; 206 size_t offset; 207 size_t size; 208 size_t start; 209 int num; 210 size_t num_offset; 211 size_t size_offset; 212 const VMStateInfo *info; 213 enum VMStateFlags flags; 214 const VMStateDescription *vmsd; 215 int version_id; 216 bool (*field_exists)(void *opaque, int version_id); 217 }; 218 219 struct VMStateDescription { 220 const char *name; 221 int unmigratable; 222 int version_id; 223 int minimum_version_id; 224 int minimum_version_id_old; 225 MigrationPriority priority; 226 LoadStateHandler *load_state_old; 227 int (*pre_load)(void *opaque); 228 int (*post_load)(void *opaque, int version_id); 229 void (*pre_save)(void *opaque); 230 bool (*needed)(void *opaque); 231 VMStateField *fields; 232 const VMStateDescription **subsections; 233 }; 234 235 extern const VMStateDescription vmstate_dummy; 236 237 extern const VMStateInfo vmstate_info_bool; 238 239 extern const VMStateInfo vmstate_info_int8; 240 extern const VMStateInfo vmstate_info_int16; 241 extern const VMStateInfo vmstate_info_int32; 242 extern const VMStateInfo vmstate_info_int64; 243 244 extern const VMStateInfo vmstate_info_uint8_equal; 245 extern const VMStateInfo vmstate_info_uint16_equal; 246 extern const VMStateInfo vmstate_info_int32_equal; 247 extern const VMStateInfo vmstate_info_uint32_equal; 248 extern const VMStateInfo vmstate_info_uint64_equal; 249 extern const VMStateInfo vmstate_info_int32_le; 250 251 extern const VMStateInfo vmstate_info_uint8; 252 extern const VMStateInfo vmstate_info_uint16; 253 extern const VMStateInfo vmstate_info_uint32; 254 extern const VMStateInfo vmstate_info_uint64; 255 256 extern const VMStateInfo vmstate_info_float64; 257 extern const VMStateInfo vmstate_info_cpudouble; 258 259 extern const VMStateInfo vmstate_info_timer; 260 extern const VMStateInfo vmstate_info_buffer; 261 extern const VMStateInfo vmstate_info_unused_buffer; 262 extern const VMStateInfo vmstate_info_bitmap; 263 extern const VMStateInfo vmstate_info_qtailq; 264 265 #define type_check_2darray(t1,t2,n,m) ((t1(*)[n][m])0 - (t2*)0) 266 #define type_check_array(t1,t2,n) ((t1(*)[n])0 - (t2*)0) 267 #define type_check_pointer(t1,t2) ((t1**)0 - (t2*)0) 268 269 #define vmstate_offset_value(_state, _field, _type) \ 270 (offsetof(_state, _field) + \ 271 type_check(_type, typeof_field(_state, _field))) 272 273 #define vmstate_offset_pointer(_state, _field, _type) \ 274 (offsetof(_state, _field) + \ 275 type_check_pointer(_type, typeof_field(_state, _field))) 276 277 #define vmstate_offset_array(_state, _field, _type, _num) \ 278 (offsetof(_state, _field) + \ 279 type_check_array(_type, typeof_field(_state, _field), _num)) 280 281 #define vmstate_offset_2darray(_state, _field, _type, _n1, _n2) \ 282 (offsetof(_state, _field) + \ 283 type_check_2darray(_type, typeof_field(_state, _field), _n1, _n2)) 284 285 #define vmstate_offset_sub_array(_state, _field, _type, _start) \ 286 vmstate_offset_value(_state, _field[_start], _type) 287 288 #define vmstate_offset_buffer(_state, _field) \ 289 vmstate_offset_array(_state, _field, uint8_t, \ 290 sizeof(typeof_field(_state, _field))) 291 292 #define VMSTATE_SINGLE_TEST(_field, _state, _test, _version, _info, _type) { \ 293 .name = (stringify(_field)), \ 294 .version_id = (_version), \ 295 .field_exists = (_test), \ 296 .size = sizeof(_type), \ 297 .info = &(_info), \ 298 .flags = VMS_SINGLE, \ 299 .offset = vmstate_offset_value(_state, _field, _type), \ 300 } 301 302 /* Validate state using a boolean predicate. */ 303 #define VMSTATE_VALIDATE(_name, _test) { \ 304 .name = (_name), \ 305 .field_exists = (_test), \ 306 .flags = VMS_ARRAY | VMS_MUST_EXIST, \ 307 .num = 0, /* 0 elements: no data, only run _test */ \ 308 } 309 310 #define VMSTATE_POINTER(_field, _state, _version, _info, _type) { \ 311 .name = (stringify(_field)), \ 312 .version_id = (_version), \ 313 .info = &(_info), \ 314 .size = sizeof(_type), \ 315 .flags = VMS_SINGLE|VMS_POINTER, \ 316 .offset = vmstate_offset_value(_state, _field, _type), \ 317 } 318 319 #define VMSTATE_POINTER_TEST(_field, _state, _test, _info, _type) { \ 320 .name = (stringify(_field)), \ 321 .info = &(_info), \ 322 .field_exists = (_test), \ 323 .size = sizeof(_type), \ 324 .flags = VMS_SINGLE|VMS_POINTER, \ 325 .offset = vmstate_offset_value(_state, _field, _type), \ 326 } 327 328 #define VMSTATE_ARRAY(_field, _state, _num, _version, _info, _type) {\ 329 .name = (stringify(_field)), \ 330 .version_id = (_version), \ 331 .num = (_num), \ 332 .info = &(_info), \ 333 .size = sizeof(_type), \ 334 .flags = VMS_ARRAY, \ 335 .offset = vmstate_offset_array(_state, _field, _type, _num), \ 336 } 337 338 #define VMSTATE_2DARRAY(_field, _state, _n1, _n2, _version, _info, _type) { \ 339 .name = (stringify(_field)), \ 340 .version_id = (_version), \ 341 .num = (_n1) * (_n2), \ 342 .info = &(_info), \ 343 .size = sizeof(_type), \ 344 .flags = VMS_ARRAY, \ 345 .offset = vmstate_offset_2darray(_state, _field, _type, _n1, _n2), \ 346 } 347 348 #define VMSTATE_VARRAY_MULTIPLY(_field, _state, _field_num, _multiply, _info, _type) { \ 349 .name = (stringify(_field)), \ 350 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\ 351 .num = (_multiply), \ 352 .info = &(_info), \ 353 .size = sizeof(_type), \ 354 .flags = VMS_VARRAY_UINT32|VMS_MULTIPLY_ELEMENTS, \ 355 .offset = offsetof(_state, _field), \ 356 } 357 358 #define VMSTATE_ARRAY_TEST(_field, _state, _num, _test, _info, _type) {\ 359 .name = (stringify(_field)), \ 360 .field_exists = (_test), \ 361 .num = (_num), \ 362 .info = &(_info), \ 363 .size = sizeof(_type), \ 364 .flags = VMS_ARRAY, \ 365 .offset = vmstate_offset_array(_state, _field, _type, _num),\ 366 } 367 368 #define VMSTATE_SUB_ARRAY(_field, _state, _start, _num, _version, _info, _type) { \ 369 .name = (stringify(_field)), \ 370 .version_id = (_version), \ 371 .num = (_num), \ 372 .info = &(_info), \ 373 .size = sizeof(_type), \ 374 .flags = VMS_ARRAY, \ 375 .offset = vmstate_offset_sub_array(_state, _field, _type, _start), \ 376 } 377 378 #define VMSTATE_ARRAY_INT32_UNSAFE(_field, _state, _field_num, _info, _type) {\ 379 .name = (stringify(_field)), \ 380 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \ 381 .info = &(_info), \ 382 .size = sizeof(_type), \ 383 .flags = VMS_VARRAY_INT32, \ 384 .offset = offsetof(_state, _field), \ 385 } 386 387 #define VMSTATE_VARRAY_INT32(_field, _state, _field_num, _version, _info, _type) {\ 388 .name = (stringify(_field)), \ 389 .version_id = (_version), \ 390 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \ 391 .info = &(_info), \ 392 .size = sizeof(_type), \ 393 .flags = VMS_VARRAY_INT32|VMS_POINTER, \ 394 .offset = vmstate_offset_pointer(_state, _field, _type), \ 395 } 396 397 #define VMSTATE_VARRAY_UINT32(_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, \ 404 .offset = vmstate_offset_pointer(_state, _field, _type), \ 405 } 406 407 #define VMSTATE_VARRAY_UINT32_ALLOC(_field, _state, _field_num, _version, _info, _type) {\ 408 .name = (stringify(_field)), \ 409 .version_id = (_version), \ 410 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\ 411 .info = &(_info), \ 412 .size = sizeof(_type), \ 413 .flags = VMS_VARRAY_UINT32|VMS_POINTER|VMS_ALLOC, \ 414 .offset = vmstate_offset_pointer(_state, _field, _type), \ 415 } 416 417 #define VMSTATE_VARRAY_UINT16_UNSAFE(_field, _state, _field_num, _version, _info, _type) {\ 418 .name = (stringify(_field)), \ 419 .version_id = (_version), \ 420 .num_offset = vmstate_offset_value(_state, _field_num, uint16_t),\ 421 .info = &(_info), \ 422 .size = sizeof(_type), \ 423 .flags = VMS_VARRAY_UINT16, \ 424 .offset = offsetof(_state, _field), \ 425 } 426 427 #define VMSTATE_STRUCT_TEST(_field, _state, _test, _version, _vmsd, _type) { \ 428 .name = (stringify(_field)), \ 429 .version_id = (_version), \ 430 .field_exists = (_test), \ 431 .vmsd = &(_vmsd), \ 432 .size = sizeof(_type), \ 433 .flags = VMS_STRUCT, \ 434 .offset = vmstate_offset_value(_state, _field, _type), \ 435 } 436 437 #define VMSTATE_STRUCT_POINTER_V(_field, _state, _version, _vmsd, _type) { \ 438 .name = (stringify(_field)), \ 439 .version_id = (_version), \ 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_STRUCT_POINTER_TEST_V(_field, _state, _test, _version, _vmsd, _type) { \ 447 .name = (stringify(_field)), \ 448 .version_id = (_version), \ 449 .field_exists = (_test), \ 450 .vmsd = &(_vmsd), \ 451 .size = sizeof(_type *), \ 452 .flags = VMS_STRUCT|VMS_POINTER, \ 453 .offset = vmstate_offset_pointer(_state, _field, _type), \ 454 } 455 456 #define VMSTATE_ARRAY_OF_POINTER(_field, _state, _num, _version, _info, _type) {\ 457 .name = (stringify(_field)), \ 458 .version_id = (_version), \ 459 .num = (_num), \ 460 .info = &(_info), \ 461 .size = sizeof(_type), \ 462 .flags = VMS_ARRAY|VMS_ARRAY_OF_POINTER, \ 463 .offset = vmstate_offset_array(_state, _field, _type, _num), \ 464 } 465 466 #define VMSTATE_ARRAY_OF_POINTER_TO_STRUCT(_f, _s, _n, _v, _vmsd, _type) { \ 467 .name = (stringify(_f)), \ 468 .version_id = (_v), \ 469 .num = (_n), \ 470 .vmsd = &(_vmsd), \ 471 .size = sizeof(_type *), \ 472 .flags = VMS_ARRAY|VMS_STRUCT|VMS_ARRAY_OF_POINTER, \ 473 .offset = vmstate_offset_array(_s, _f, _type*, _n), \ 474 } 475 476 #define VMSTATE_STRUCT_SUB_ARRAY(_field, _state, _start, _num, _version, _vmsd, _type) { \ 477 .name = (stringify(_field)), \ 478 .version_id = (_version), \ 479 .num = (_num), \ 480 .vmsd = &(_vmsd), \ 481 .size = sizeof(_type), \ 482 .flags = VMS_STRUCT|VMS_ARRAY, \ 483 .offset = vmstate_offset_sub_array(_state, _field, _type, _start), \ 484 } 485 486 #define VMSTATE_STRUCT_ARRAY_TEST(_field, _state, _num, _test, _version, _vmsd, _type) { \ 487 .name = (stringify(_field)), \ 488 .num = (_num), \ 489 .field_exists = (_test), \ 490 .version_id = (_version), \ 491 .vmsd = &(_vmsd), \ 492 .size = sizeof(_type), \ 493 .flags = VMS_STRUCT|VMS_ARRAY, \ 494 .offset = vmstate_offset_array(_state, _field, _type, _num),\ 495 } 496 497 #define VMSTATE_STRUCT_VARRAY_UINT8(_field, _state, _field_num, _version, _vmsd, _type) { \ 498 .name = (stringify(_field)), \ 499 .num_offset = vmstate_offset_value(_state, _field_num, uint8_t), \ 500 .version_id = (_version), \ 501 .vmsd = &(_vmsd), \ 502 .size = sizeof(_type), \ 503 .flags = VMS_STRUCT|VMS_VARRAY_UINT8, \ 504 .offset = offsetof(_state, _field), \ 505 } 506 507 /* a variable length array (i.e. _type *_field) but we know the 508 * length 509 */ 510 #define VMSTATE_STRUCT_VARRAY_POINTER_KNOWN(_field, _state, _num, _version, _vmsd, _type) { \ 511 .name = (stringify(_field)), \ 512 .num = (_num), \ 513 .version_id = (_version), \ 514 .vmsd = &(_vmsd), \ 515 .size = sizeof(_type), \ 516 .flags = VMS_STRUCT|VMS_ARRAY|VMS_POINTER, \ 517 .offset = offsetof(_state, _field), \ 518 } 519 520 #define VMSTATE_STRUCT_VARRAY_POINTER_INT32(_field, _state, _field_num, _vmsd, _type) { \ 521 .name = (stringify(_field)), \ 522 .version_id = 0, \ 523 .num_offset = vmstate_offset_value(_state, _field_num, int32_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_UINT32(_field, _state, _field_num, _vmsd, _type) { \ 531 .name = (stringify(_field)), \ 532 .version_id = 0, \ 533 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\ 534 .size = sizeof(_type), \ 535 .vmsd = &(_vmsd), \ 536 .flags = VMS_POINTER | VMS_VARRAY_INT32 | VMS_STRUCT, \ 537 .offset = vmstate_offset_pointer(_state, _field, _type), \ 538 } 539 540 #define VMSTATE_STRUCT_VARRAY_POINTER_UINT16(_field, _state, _field_num, _vmsd, _type) { \ 541 .name = (stringify(_field)), \ 542 .version_id = 0, \ 543 .num_offset = vmstate_offset_value(_state, _field_num, uint16_t),\ 544 .size = sizeof(_type), \ 545 .vmsd = &(_vmsd), \ 546 .flags = VMS_POINTER | VMS_VARRAY_UINT16 | VMS_STRUCT, \ 547 .offset = vmstate_offset_pointer(_state, _field, _type), \ 548 } 549 550 #define VMSTATE_STRUCT_VARRAY_INT32(_field, _state, _field_num, _version, _vmsd, _type) { \ 551 .name = (stringify(_field)), \ 552 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \ 553 .version_id = (_version), \ 554 .vmsd = &(_vmsd), \ 555 .size = sizeof(_type), \ 556 .flags = VMS_STRUCT|VMS_VARRAY_INT32, \ 557 .offset = offsetof(_state, _field), \ 558 } 559 560 #define VMSTATE_STRUCT_VARRAY_UINT32(_field, _state, _field_num, _version, _vmsd, _type) { \ 561 .name = (stringify(_field)), \ 562 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t), \ 563 .version_id = (_version), \ 564 .vmsd = &(_vmsd), \ 565 .size = sizeof(_type), \ 566 .flags = VMS_STRUCT|VMS_VARRAY_UINT32, \ 567 .offset = offsetof(_state, _field), \ 568 } 569 570 #define VMSTATE_STRUCT_VARRAY_ALLOC(_field, _state, _field_num, _version, _vmsd, _type) {\ 571 .name = (stringify(_field)), \ 572 .version_id = (_version), \ 573 .vmsd = &(_vmsd), \ 574 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \ 575 .size = sizeof(_type), \ 576 .flags = VMS_STRUCT|VMS_VARRAY_INT32|VMS_ALLOC|VMS_POINTER, \ 577 .offset = vmstate_offset_pointer(_state, _field, _type), \ 578 } 579 580 #define VMSTATE_STATIC_BUFFER(_field, _state, _version, _test, _start, _size) { \ 581 .name = (stringify(_field)), \ 582 .version_id = (_version), \ 583 .field_exists = (_test), \ 584 .size = (_size - _start), \ 585 .info = &vmstate_info_buffer, \ 586 .flags = VMS_BUFFER, \ 587 .offset = vmstate_offset_buffer(_state, _field) + _start, \ 588 } 589 590 #define VMSTATE_VBUFFER_MULTIPLY(_field, _state, _version, _test, _start, _field_size, _multiply) { \ 591 .name = (stringify(_field)), \ 592 .version_id = (_version), \ 593 .field_exists = (_test), \ 594 .size_offset = vmstate_offset_value(_state, _field_size, uint32_t),\ 595 .size = (_multiply), \ 596 .info = &vmstate_info_buffer, \ 597 .flags = VMS_VBUFFER|VMS_POINTER|VMS_MULTIPLY, \ 598 .offset = offsetof(_state, _field), \ 599 .start = (_start), \ 600 } 601 602 #define VMSTATE_VBUFFER(_field, _state, _version, _test, _start, _field_size) { \ 603 .name = (stringify(_field)), \ 604 .version_id = (_version), \ 605 .field_exists = (_test), \ 606 .size_offset = vmstate_offset_value(_state, _field_size, int32_t),\ 607 .info = &vmstate_info_buffer, \ 608 .flags = VMS_VBUFFER|VMS_POINTER, \ 609 .offset = offsetof(_state, _field), \ 610 .start = (_start), \ 611 } 612 613 #define VMSTATE_VBUFFER_UINT32(_field, _state, _version, _test, _start, _field_size) { \ 614 .name = (stringify(_field)), \ 615 .version_id = (_version), \ 616 .field_exists = (_test), \ 617 .size_offset = vmstate_offset_value(_state, _field_size, uint32_t),\ 618 .info = &vmstate_info_buffer, \ 619 .flags = VMS_VBUFFER|VMS_POINTER, \ 620 .offset = offsetof(_state, _field), \ 621 .start = (_start), \ 622 } 623 624 #define VMSTATE_VBUFFER_ALLOC_UINT32(_field, _state, _version, _test, _start, _field_size) { \ 625 .name = (stringify(_field)), \ 626 .version_id = (_version), \ 627 .field_exists = (_test), \ 628 .size_offset = vmstate_offset_value(_state, _field_size, uint32_t),\ 629 .info = &vmstate_info_buffer, \ 630 .flags = VMS_VBUFFER|VMS_POINTER|VMS_ALLOC, \ 631 .offset = offsetof(_state, _field), \ 632 .start = (_start), \ 633 } 634 635 #define VMSTATE_BUFFER_UNSAFE_INFO_TEST(_field, _state, _test, _version, _info, _size) { \ 636 .name = (stringify(_field)), \ 637 .version_id = (_version), \ 638 .field_exists = (_test), \ 639 .size = (_size), \ 640 .info = &(_info), \ 641 .flags = VMS_BUFFER, \ 642 .offset = offsetof(_state, _field), \ 643 } 644 645 #define VMSTATE_BUFFER_POINTER_UNSAFE(_field, _state, _version, _size) { \ 646 .name = (stringify(_field)), \ 647 .version_id = (_version), \ 648 .size = (_size), \ 649 .info = &vmstate_info_buffer, \ 650 .flags = VMS_BUFFER|VMS_POINTER, \ 651 .offset = offsetof(_state, _field), \ 652 } 653 654 #define VMSTATE_UNUSED_BUFFER(_test, _version, _size) { \ 655 .name = "unused", \ 656 .field_exists = (_test), \ 657 .version_id = (_version), \ 658 .size = (_size), \ 659 .info = &vmstate_info_unused_buffer, \ 660 .flags = VMS_BUFFER, \ 661 } 662 663 /* _field_size should be a int32_t field in the _state struct giving the 664 * size of the bitmap _field in bits. 665 */ 666 #define VMSTATE_BITMAP(_field, _state, _version, _field_size) { \ 667 .name = (stringify(_field)), \ 668 .version_id = (_version), \ 669 .size_offset = vmstate_offset_value(_state, _field_size, int32_t),\ 670 .info = &vmstate_info_bitmap, \ 671 .flags = VMS_VBUFFER|VMS_POINTER, \ 672 .offset = offsetof(_state, _field), \ 673 } 674 675 /* For migrating a QTAILQ. 676 * Target QTAILQ needs be properly initialized. 677 * _type: type of QTAILQ element 678 * _next: name of QTAILQ entry field in QTAILQ element 679 * _vmsd: VMSD for QTAILQ element 680 * size: size of QTAILQ element 681 * start: offset of QTAILQ entry in QTAILQ element 682 */ 683 #define VMSTATE_QTAILQ_V(_field, _state, _version, _vmsd, _type, _next) \ 684 { \ 685 .name = (stringify(_field)), \ 686 .version_id = (_version), \ 687 .vmsd = &(_vmsd), \ 688 .size = sizeof(_type), \ 689 .info = &vmstate_info_qtailq, \ 690 .offset = offsetof(_state, _field), \ 691 .start = offsetof(_type, _next), \ 692 } 693 694 /* _f : field name 695 _f_n : num of elements field_name 696 _n : num of elements 697 _s : struct state name 698 _v : version 699 */ 700 701 #define VMSTATE_SINGLE(_field, _state, _version, _info, _type) \ 702 VMSTATE_SINGLE_TEST(_field, _state, NULL, _version, _info, _type) 703 704 #define VMSTATE_STRUCT(_field, _state, _version, _vmsd, _type) \ 705 VMSTATE_STRUCT_TEST(_field, _state, NULL, _version, _vmsd, _type) 706 707 #define VMSTATE_STRUCT_POINTER(_field, _state, _vmsd, _type) \ 708 VMSTATE_STRUCT_POINTER_V(_field, _state, 0, _vmsd, _type) 709 710 #define VMSTATE_STRUCT_POINTER_TEST(_field, _state, _test, _vmsd, _type) \ 711 VMSTATE_STRUCT_POINTER_TEST_V(_field, _state, _test, 0, _vmsd, _type) 712 713 #define VMSTATE_STRUCT_ARRAY(_field, _state, _num, _version, _vmsd, _type) \ 714 VMSTATE_STRUCT_ARRAY_TEST(_field, _state, _num, NULL, _version, \ 715 _vmsd, _type) 716 717 #define VMSTATE_BUFFER_UNSAFE_INFO(_field, _state, _version, _info, _size) \ 718 VMSTATE_BUFFER_UNSAFE_INFO_TEST(_field, _state, NULL, _version, _info, \ 719 _size) 720 721 #define VMSTATE_BOOL_V(_f, _s, _v) \ 722 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_bool, bool) 723 724 #define VMSTATE_INT8_V(_f, _s, _v) \ 725 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int8, int8_t) 726 #define VMSTATE_INT16_V(_f, _s, _v) \ 727 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int16, int16_t) 728 #define VMSTATE_INT32_V(_f, _s, _v) \ 729 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int32, int32_t) 730 #define VMSTATE_INT64_V(_f, _s, _v) \ 731 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int64, int64_t) 732 733 #define VMSTATE_UINT8_V(_f, _s, _v) \ 734 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint8, uint8_t) 735 #define VMSTATE_UINT16_V(_f, _s, _v) \ 736 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint16, uint16_t) 737 #define VMSTATE_UINT32_V(_f, _s, _v) \ 738 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint32, uint32_t) 739 #define VMSTATE_UINT64_V(_f, _s, _v) \ 740 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint64, uint64_t) 741 742 #define VMSTATE_BOOL(_f, _s) \ 743 VMSTATE_BOOL_V(_f, _s, 0) 744 745 #define VMSTATE_INT8(_f, _s) \ 746 VMSTATE_INT8_V(_f, _s, 0) 747 #define VMSTATE_INT16(_f, _s) \ 748 VMSTATE_INT16_V(_f, _s, 0) 749 #define VMSTATE_INT32(_f, _s) \ 750 VMSTATE_INT32_V(_f, _s, 0) 751 #define VMSTATE_INT64(_f, _s) \ 752 VMSTATE_INT64_V(_f, _s, 0) 753 754 #define VMSTATE_UINT8(_f, _s) \ 755 VMSTATE_UINT8_V(_f, _s, 0) 756 #define VMSTATE_UINT16(_f, _s) \ 757 VMSTATE_UINT16_V(_f, _s, 0) 758 #define VMSTATE_UINT32(_f, _s) \ 759 VMSTATE_UINT32_V(_f, _s, 0) 760 #define VMSTATE_UINT64(_f, _s) \ 761 VMSTATE_UINT64_V(_f, _s, 0) 762 763 #define VMSTATE_UINT8_EQUAL(_f, _s) \ 764 VMSTATE_SINGLE(_f, _s, 0, vmstate_info_uint8_equal, uint8_t) 765 766 #define VMSTATE_UINT16_EQUAL(_f, _s) \ 767 VMSTATE_SINGLE(_f, _s, 0, vmstate_info_uint16_equal, uint16_t) 768 769 #define VMSTATE_UINT16_EQUAL_V(_f, _s, _v) \ 770 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint16_equal, uint16_t) 771 772 #define VMSTATE_INT32_EQUAL(_f, _s) \ 773 VMSTATE_SINGLE(_f, _s, 0, vmstate_info_int32_equal, int32_t) 774 775 #define VMSTATE_UINT32_EQUAL_V(_f, _s, _v) \ 776 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint32_equal, uint32_t) 777 778 #define VMSTATE_UINT32_EQUAL(_f, _s) \ 779 VMSTATE_UINT32_EQUAL_V(_f, _s, 0) 780 781 #define VMSTATE_UINT64_EQUAL_V(_f, _s, _v) \ 782 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint64_equal, uint64_t) 783 784 #define VMSTATE_UINT64_EQUAL(_f, _s) \ 785 VMSTATE_UINT64_EQUAL_V(_f, _s, 0) 786 787 #define VMSTATE_INT32_POSITIVE_LE(_f, _s) \ 788 VMSTATE_SINGLE(_f, _s, 0, vmstate_info_int32_le, int32_t) 789 790 #define VMSTATE_INT8_TEST(_f, _s, _t) \ 791 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_int8, int8_t) 792 793 #define VMSTATE_INT16_TEST(_f, _s, _t) \ 794 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_int16, int16_t) 795 796 #define VMSTATE_INT32_TEST(_f, _s, _t) \ 797 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_int32, int32_t) 798 799 #define VMSTATE_INT64_TEST(_f, _s, _t) \ 800 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_int64, int64_t) 801 802 #define VMSTATE_UINT8_TEST(_f, _s, _t) \ 803 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint8, uint8_t) 804 805 #define VMSTATE_UINT16_TEST(_f, _s, _t) \ 806 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint16, uint16_t) 807 808 #define VMSTATE_UINT32_TEST(_f, _s, _t) \ 809 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint32, uint32_t) 810 811 #define VMSTATE_UINT64_TEST(_f, _s, _t) \ 812 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint64, uint64_t) 813 814 815 #define VMSTATE_FLOAT64_V(_f, _s, _v) \ 816 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_float64, float64) 817 818 #define VMSTATE_FLOAT64(_f, _s) \ 819 VMSTATE_FLOAT64_V(_f, _s, 0) 820 821 #define VMSTATE_TIMER_PTR_TEST(_f, _s, _test) \ 822 VMSTATE_POINTER_TEST(_f, _s, _test, vmstate_info_timer, QEMUTimer *) 823 824 #define VMSTATE_TIMER_PTR_V(_f, _s, _v) \ 825 VMSTATE_POINTER(_f, _s, _v, vmstate_info_timer, QEMUTimer *) 826 827 #define VMSTATE_TIMER_PTR(_f, _s) \ 828 VMSTATE_TIMER_PTR_V(_f, _s, 0) 829 830 #define VMSTATE_TIMER_PTR_ARRAY(_f, _s, _n) \ 831 VMSTATE_ARRAY_OF_POINTER(_f, _s, _n, 0, vmstate_info_timer, QEMUTimer *) 832 833 #define VMSTATE_TIMER_TEST(_f, _s, _test) \ 834 VMSTATE_SINGLE_TEST(_f, _s, _test, 0, vmstate_info_timer, QEMUTimer) 835 836 #define VMSTATE_TIMER_V(_f, _s, _v) \ 837 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_timer, QEMUTimer) 838 839 #define VMSTATE_TIMER(_f, _s) \ 840 VMSTATE_TIMER_V(_f, _s, 0) 841 842 #define VMSTATE_TIMER_ARRAY(_f, _s, _n) \ 843 VMSTATE_ARRAY(_f, _s, _n, 0, vmstate_info_timer, QEMUTimer) 844 845 #define VMSTATE_BOOL_ARRAY_V(_f, _s, _n, _v) \ 846 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_bool, bool) 847 848 #define VMSTATE_BOOL_ARRAY(_f, _s, _n) \ 849 VMSTATE_BOOL_ARRAY_V(_f, _s, _n, 0) 850 851 #define VMSTATE_UINT16_ARRAY_V(_f, _s, _n, _v) \ 852 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint16, uint16_t) 853 854 #define VMSTATE_UINT16_2DARRAY_V(_f, _s, _n1, _n2, _v) \ 855 VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint16, uint16_t) 856 857 #define VMSTATE_UINT16_ARRAY(_f, _s, _n) \ 858 VMSTATE_UINT16_ARRAY_V(_f, _s, _n, 0) 859 860 #define VMSTATE_UINT16_2DARRAY(_f, _s, _n1, _n2) \ 861 VMSTATE_UINT16_2DARRAY_V(_f, _s, _n1, _n2, 0) 862 863 #define VMSTATE_UINT8_2DARRAY_V(_f, _s, _n1, _n2, _v) \ 864 VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint8, uint8_t) 865 866 #define VMSTATE_UINT8_ARRAY_V(_f, _s, _n, _v) \ 867 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint8, uint8_t) 868 869 #define VMSTATE_UINT8_ARRAY(_f, _s, _n) \ 870 VMSTATE_UINT8_ARRAY_V(_f, _s, _n, 0) 871 872 #define VMSTATE_UINT8_SUB_ARRAY(_f, _s, _start, _num) \ 873 VMSTATE_SUB_ARRAY(_f, _s, _start, _num, 0, vmstate_info_uint8, uint8_t) 874 875 #define VMSTATE_UINT8_2DARRAY(_f, _s, _n1, _n2) \ 876 VMSTATE_UINT8_2DARRAY_V(_f, _s, _n1, _n2, 0) 877 878 #define VMSTATE_UINT32_ARRAY_V(_f, _s, _n, _v) \ 879 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint32, uint32_t) 880 881 #define VMSTATE_UINT32_2DARRAY_V(_f, _s, _n1, _n2, _v) \ 882 VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint32, uint32_t) 883 884 #define VMSTATE_UINT32_ARRAY(_f, _s, _n) \ 885 VMSTATE_UINT32_ARRAY_V(_f, _s, _n, 0) 886 887 #define VMSTATE_UINT32_2DARRAY(_f, _s, _n1, _n2) \ 888 VMSTATE_UINT32_2DARRAY_V(_f, _s, _n1, _n2, 0) 889 890 #define VMSTATE_UINT64_ARRAY_V(_f, _s, _n, _v) \ 891 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint64, uint64_t) 892 893 #define VMSTATE_UINT64_ARRAY(_f, _s, _n) \ 894 VMSTATE_UINT64_ARRAY_V(_f, _s, _n, 0) 895 896 #define VMSTATE_UINT64_2DARRAY(_f, _s, _n1, _n2) \ 897 VMSTATE_UINT64_2DARRAY_V(_f, _s, _n1, _n2, 0) 898 899 #define VMSTATE_UINT64_2DARRAY_V(_f, _s, _n1, _n2, _v) \ 900 VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint64, uint64_t) 901 902 #define VMSTATE_INT16_ARRAY_V(_f, _s, _n, _v) \ 903 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int16, int16_t) 904 905 #define VMSTATE_INT16_ARRAY(_f, _s, _n) \ 906 VMSTATE_INT16_ARRAY_V(_f, _s, _n, 0) 907 908 #define VMSTATE_INT32_ARRAY_V(_f, _s, _n, _v) \ 909 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int32, int32_t) 910 911 #define VMSTATE_INT32_ARRAY(_f, _s, _n) \ 912 VMSTATE_INT32_ARRAY_V(_f, _s, _n, 0) 913 914 #define VMSTATE_UINT32_SUB_ARRAY(_f, _s, _start, _num) \ 915 VMSTATE_SUB_ARRAY(_f, _s, _start, _num, 0, vmstate_info_uint32, uint32_t) 916 917 #define VMSTATE_INT64_ARRAY_V(_f, _s, _n, _v) \ 918 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int64, int64_t) 919 920 #define VMSTATE_INT64_ARRAY(_f, _s, _n) \ 921 VMSTATE_INT64_ARRAY_V(_f, _s, _n, 0) 922 923 #define VMSTATE_FLOAT64_ARRAY_V(_f, _s, _n, _v) \ 924 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_float64, float64) 925 926 #define VMSTATE_FLOAT64_ARRAY(_f, _s, _n) \ 927 VMSTATE_FLOAT64_ARRAY_V(_f, _s, _n, 0) 928 929 #define VMSTATE_CPUDOUBLE_ARRAY_V(_f, _s, _n, _v) \ 930 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_cpudouble, CPU_DoubleU) 931 932 #define VMSTATE_CPUDOUBLE_ARRAY(_f, _s, _n) \ 933 VMSTATE_CPUDOUBLE_ARRAY_V(_f, _s, _n, 0) 934 935 #define VMSTATE_BUFFER_V(_f, _s, _v) \ 936 VMSTATE_STATIC_BUFFER(_f, _s, _v, NULL, 0, sizeof(typeof_field(_s, _f))) 937 938 #define VMSTATE_BUFFER(_f, _s) \ 939 VMSTATE_BUFFER_V(_f, _s, 0) 940 941 #define VMSTATE_PARTIAL_BUFFER(_f, _s, _size) \ 942 VMSTATE_STATIC_BUFFER(_f, _s, 0, NULL, 0, _size) 943 944 #define VMSTATE_BUFFER_START_MIDDLE_V(_f, _s, _start, _v) \ 945 VMSTATE_STATIC_BUFFER(_f, _s, _v, NULL, _start, sizeof(typeof_field(_s, _f))) 946 947 #define VMSTATE_BUFFER_START_MIDDLE(_f, _s, _start) \ 948 VMSTATE_BUFFER_START_MIDDLE_V(_f, _s, _start, 0) 949 950 #define VMSTATE_PARTIAL_VBUFFER(_f, _s, _size) \ 951 VMSTATE_VBUFFER(_f, _s, 0, NULL, 0, _size) 952 953 #define VMSTATE_PARTIAL_VBUFFER_UINT32(_f, _s, _size) \ 954 VMSTATE_VBUFFER_UINT32(_f, _s, 0, NULL, 0, _size) 955 956 #define VMSTATE_SUB_VBUFFER(_f, _s, _start, _size) \ 957 VMSTATE_VBUFFER(_f, _s, 0, NULL, _start, _size) 958 959 #define VMSTATE_BUFFER_TEST(_f, _s, _test) \ 960 VMSTATE_STATIC_BUFFER(_f, _s, 0, _test, 0, sizeof(typeof_field(_s, _f))) 961 962 #define VMSTATE_BUFFER_UNSAFE(_field, _state, _version, _size) \ 963 VMSTATE_BUFFER_UNSAFE_INFO(_field, _state, _version, vmstate_info_buffer, _size) 964 965 #define VMSTATE_UNUSED_V(_v, _size) \ 966 VMSTATE_UNUSED_BUFFER(NULL, _v, _size) 967 968 #define VMSTATE_UNUSED(_size) \ 969 VMSTATE_UNUSED_V(0, _size) 970 971 #define VMSTATE_UNUSED_TEST(_test, _size) \ 972 VMSTATE_UNUSED_BUFFER(_test, 0, _size) 973 974 #define VMSTATE_END_OF_LIST() \ 975 {} 976 977 #define SELF_ANNOUNCE_ROUNDS 5 978 979 void loadvm_free_handlers(MigrationIncomingState *mis); 980 981 int vmstate_load_state(QEMUFile *f, const VMStateDescription *vmsd, 982 void *opaque, int version_id); 983 void vmstate_save_state(QEMUFile *f, const VMStateDescription *vmsd, 984 void *opaque, QJSON *vmdesc); 985 986 bool vmstate_save_needed(const VMStateDescription *vmsd, void *opaque); 987 988 int vmstate_register_with_alias_id(DeviceState *dev, int instance_id, 989 const VMStateDescription *vmsd, 990 void *base, int alias_id, 991 int required_for_version); 992 993 static inline int vmstate_register(DeviceState *dev, int instance_id, 994 const VMStateDescription *vmsd, 995 void *opaque) 996 { 997 return vmstate_register_with_alias_id(dev, instance_id, vmsd, 998 opaque, -1, 0); 999 } 1000 1001 void vmstate_unregister(DeviceState *dev, const VMStateDescription *vmsd, 1002 void *opaque); 1003 1004 struct MemoryRegion; 1005 void vmstate_register_ram(struct MemoryRegion *memory, DeviceState *dev); 1006 void vmstate_unregister_ram(struct MemoryRegion *memory, DeviceState *dev); 1007 void vmstate_register_ram_global(struct MemoryRegion *memory); 1008 1009 static inline 1010 int64_t self_announce_delay(int round) 1011 { 1012 assert(round < SELF_ANNOUNCE_ROUNDS && round > 0); 1013 /* delay 50ms, 150ms, 250ms, ... */ 1014 return 50 + (SELF_ANNOUNCE_ROUNDS - round - 1) * 100; 1015 } 1016 1017 void dump_vmstate_json_to_file(FILE *out_fp); 1018 1019 #endif 1020