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 #ifndef QEMU_VMSTATE_H 27 #define QEMU_VMSTATE_H 1 28 29 #ifndef CONFIG_USER_ONLY 30 #include <migration/qemu-file.h> 31 #endif 32 33 typedef void SaveStateHandler(QEMUFile *f, void *opaque); 34 typedef int LoadStateHandler(QEMUFile *f, void *opaque, int version_id); 35 36 typedef struct SaveVMHandlers { 37 /* This runs inside the iothread lock. */ 38 void (*set_params)(const MigrationParams *params, void * opaque); 39 SaveStateHandler *save_state; 40 41 void (*cancel)(void *opaque); 42 int (*save_live_complete)(QEMUFile *f, void *opaque); 43 44 /* This runs both outside and inside the iothread lock. */ 45 bool (*is_active)(void *opaque); 46 47 /* This runs outside the iothread lock in the migration case, and 48 * within the lock in the savevm case. The callback had better only 49 * use data that is local to the migration thread or protected 50 * by other locks. 51 */ 52 int (*save_live_iterate)(QEMUFile *f, void *opaque); 53 54 /* This runs outside the iothread lock! */ 55 int (*save_live_setup)(QEMUFile *f, void *opaque); 56 uint64_t (*save_live_pending)(QEMUFile *f, void *opaque, uint64_t max_size); 57 58 LoadStateHandler *load_state; 59 } SaveVMHandlers; 60 61 int register_savevm(DeviceState *dev, 62 const char *idstr, 63 int instance_id, 64 int version_id, 65 SaveStateHandler *save_state, 66 LoadStateHandler *load_state, 67 void *opaque); 68 69 int register_savevm_live(DeviceState *dev, 70 const char *idstr, 71 int instance_id, 72 int version_id, 73 SaveVMHandlers *ops, 74 void *opaque); 75 76 void unregister_savevm(DeviceState *dev, const char *idstr, void *opaque); 77 void register_device_unmigratable(DeviceState *dev, const char *idstr, 78 void *opaque); 79 80 81 typedef struct VMStateInfo VMStateInfo; 82 typedef struct VMStateDescription VMStateDescription; 83 84 struct VMStateInfo { 85 const char *name; 86 int (*get)(QEMUFile *f, void *pv, size_t size); 87 void (*put)(QEMUFile *f, void *pv, size_t size); 88 }; 89 90 enum VMStateFlags { 91 VMS_SINGLE = 0x001, 92 VMS_POINTER = 0x002, 93 VMS_ARRAY = 0x004, 94 VMS_STRUCT = 0x008, 95 VMS_VARRAY_INT32 = 0x010, /* Array with size in int32_t field*/ 96 VMS_BUFFER = 0x020, /* static sized buffer */ 97 VMS_ARRAY_OF_POINTER = 0x040, 98 VMS_VARRAY_UINT16 = 0x080, /* Array with size in uint16_t field */ 99 VMS_VBUFFER = 0x100, /* Buffer with size in int32_t field */ 100 VMS_MULTIPLY = 0x200, /* multiply "size" field by field_size */ 101 VMS_VARRAY_UINT8 = 0x400, /* Array with size in uint8_t field*/ 102 VMS_VARRAY_UINT32 = 0x800, /* Array with size in uint32_t field*/ 103 VMS_MUST_EXIST = 0x1000, /* Field must exist in input */ 104 VMS_ALLOC = 0x2000, /* Alloc a buffer on the destination */ 105 }; 106 107 typedef struct { 108 const char *name; 109 size_t offset; 110 size_t size; 111 size_t start; 112 int num; 113 size_t num_offset; 114 size_t size_offset; 115 const VMStateInfo *info; 116 enum VMStateFlags flags; 117 const VMStateDescription *vmsd; 118 int version_id; 119 bool (*field_exists)(void *opaque, int version_id); 120 } VMStateField; 121 122 typedef struct VMStateSubsection { 123 const VMStateDescription *vmsd; 124 bool (*needed)(void *opaque); 125 } VMStateSubsection; 126 127 struct VMStateDescription { 128 const char *name; 129 int unmigratable; 130 int version_id; 131 int minimum_version_id; 132 int minimum_version_id_old; 133 LoadStateHandler *load_state_old; 134 int (*pre_load)(void *opaque); 135 int (*post_load)(void *opaque, int version_id); 136 void (*pre_save)(void *opaque); 137 VMStateField *fields; 138 const VMStateSubsection *subsections; 139 }; 140 141 #ifdef CONFIG_USER_ONLY 142 extern const VMStateDescription vmstate_dummy; 143 #endif 144 145 extern const VMStateInfo vmstate_info_bool; 146 147 extern const VMStateInfo vmstate_info_int8; 148 extern const VMStateInfo vmstate_info_int16; 149 extern const VMStateInfo vmstate_info_int32; 150 extern const VMStateInfo vmstate_info_int64; 151 152 extern const VMStateInfo vmstate_info_uint8_equal; 153 extern const VMStateInfo vmstate_info_uint16_equal; 154 extern const VMStateInfo vmstate_info_int32_equal; 155 extern const VMStateInfo vmstate_info_uint32_equal; 156 extern const VMStateInfo vmstate_info_uint64_equal; 157 extern const VMStateInfo vmstate_info_int32_le; 158 159 extern const VMStateInfo vmstate_info_uint8; 160 extern const VMStateInfo vmstate_info_uint16; 161 extern const VMStateInfo vmstate_info_uint32; 162 extern const VMStateInfo vmstate_info_uint64; 163 164 extern const VMStateInfo vmstate_info_float64; 165 166 extern const VMStateInfo vmstate_info_timer; 167 extern const VMStateInfo vmstate_info_buffer; 168 extern const VMStateInfo vmstate_info_unused_buffer; 169 extern const VMStateInfo vmstate_info_bitmap; 170 171 #define type_check_2darray(t1,t2,n,m) ((t1(*)[n][m])0 - (t2*)0) 172 #define type_check_array(t1,t2,n) ((t1(*)[n])0 - (t2*)0) 173 #define type_check_pointer(t1,t2) ((t1**)0 - (t2*)0) 174 175 #define vmstate_offset_value(_state, _field, _type) \ 176 (offsetof(_state, _field) + \ 177 type_check(_type, typeof_field(_state, _field))) 178 179 #define vmstate_offset_pointer(_state, _field, _type) \ 180 (offsetof(_state, _field) + \ 181 type_check_pointer(_type, typeof_field(_state, _field))) 182 183 #define vmstate_offset_array(_state, _field, _type, _num) \ 184 (offsetof(_state, _field) + \ 185 type_check_array(_type, typeof_field(_state, _field), _num)) 186 187 #define vmstate_offset_2darray(_state, _field, _type, _n1, _n2) \ 188 (offsetof(_state, _field) + \ 189 type_check_2darray(_type, typeof_field(_state, _field), _n1, _n2)) 190 191 #define vmstate_offset_sub_array(_state, _field, _type, _start) \ 192 (offsetof(_state, _field[_start])) 193 194 #define vmstate_offset_buffer(_state, _field) \ 195 vmstate_offset_array(_state, _field, uint8_t, \ 196 sizeof(typeof_field(_state, _field))) 197 198 #define VMSTATE_SINGLE_TEST(_field, _state, _test, _version, _info, _type) { \ 199 .name = (stringify(_field)), \ 200 .version_id = (_version), \ 201 .field_exists = (_test), \ 202 .size = sizeof(_type), \ 203 .info = &(_info), \ 204 .flags = VMS_SINGLE, \ 205 .offset = vmstate_offset_value(_state, _field, _type), \ 206 } 207 208 /* Validate state using a boolean predicate. */ 209 #define VMSTATE_VALIDATE(_name, _test) { \ 210 .name = (_name), \ 211 .field_exists = (_test), \ 212 .flags = VMS_ARRAY | VMS_MUST_EXIST, \ 213 .num = 0, /* 0 elements: no data, only run _test */ \ 214 } 215 216 #define VMSTATE_POINTER(_field, _state, _version, _info, _type) { \ 217 .name = (stringify(_field)), \ 218 .version_id = (_version), \ 219 .info = &(_info), \ 220 .size = sizeof(_type), \ 221 .flags = VMS_SINGLE|VMS_POINTER, \ 222 .offset = vmstate_offset_value(_state, _field, _type), \ 223 } 224 225 #define VMSTATE_POINTER_TEST(_field, _state, _test, _info, _type) { \ 226 .name = (stringify(_field)), \ 227 .info = &(_info), \ 228 .field_exists = (_test), \ 229 .size = sizeof(_type), \ 230 .flags = VMS_SINGLE|VMS_POINTER, \ 231 .offset = vmstate_offset_value(_state, _field, _type), \ 232 } 233 234 #define VMSTATE_ARRAY(_field, _state, _num, _version, _info, _type) {\ 235 .name = (stringify(_field)), \ 236 .version_id = (_version), \ 237 .num = (_num), \ 238 .info = &(_info), \ 239 .size = sizeof(_type), \ 240 .flags = VMS_ARRAY, \ 241 .offset = vmstate_offset_array(_state, _field, _type, _num), \ 242 } 243 244 #define VMSTATE_2DARRAY(_field, _state, _n1, _n2, _version, _info, _type) { \ 245 .name = (stringify(_field)), \ 246 .version_id = (_version), \ 247 .num = (_n1) * (_n2), \ 248 .info = &(_info), \ 249 .size = sizeof(_type), \ 250 .flags = VMS_ARRAY, \ 251 .offset = vmstate_offset_2darray(_state, _field, _type, _n1, _n2), \ 252 } 253 254 #define VMSTATE_ARRAY_TEST(_field, _state, _num, _test, _info, _type) {\ 255 .name = (stringify(_field)), \ 256 .field_exists = (_test), \ 257 .num = (_num), \ 258 .info = &(_info), \ 259 .size = sizeof(_type), \ 260 .flags = VMS_ARRAY, \ 261 .offset = vmstate_offset_array(_state, _field, _type, _num),\ 262 } 263 264 #define VMSTATE_SUB_ARRAY(_field, _state, _start, _num, _version, _info, _type) { \ 265 .name = (stringify(_field)), \ 266 .version_id = (_version), \ 267 .num = (_num), \ 268 .info = &(_info), \ 269 .size = sizeof(_type), \ 270 .flags = VMS_ARRAY, \ 271 .offset = vmstate_offset_sub_array(_state, _field, _type, _start), \ 272 } 273 274 #define VMSTATE_ARRAY_INT32_UNSAFE(_field, _state, _field_num, _info, _type) {\ 275 .name = (stringify(_field)), \ 276 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \ 277 .info = &(_info), \ 278 .size = sizeof(_type), \ 279 .flags = VMS_VARRAY_INT32, \ 280 .offset = offsetof(_state, _field), \ 281 } 282 283 #define VMSTATE_VARRAY_INT32(_field, _state, _field_num, _version, _info, _type) {\ 284 .name = (stringify(_field)), \ 285 .version_id = (_version), \ 286 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \ 287 .info = &(_info), \ 288 .size = sizeof(_type), \ 289 .flags = VMS_VARRAY_INT32|VMS_POINTER, \ 290 .offset = vmstate_offset_pointer(_state, _field, _type), \ 291 } 292 293 #define VMSTATE_VARRAY_UINT32(_field, _state, _field_num, _version, _info, _type) {\ 294 .name = (stringify(_field)), \ 295 .version_id = (_version), \ 296 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\ 297 .info = &(_info), \ 298 .size = sizeof(_type), \ 299 .flags = VMS_VARRAY_UINT32|VMS_POINTER, \ 300 .offset = vmstate_offset_pointer(_state, _field, _type), \ 301 } 302 303 #define VMSTATE_VARRAY_UINT16_UNSAFE(_field, _state, _field_num, _version, _info, _type) {\ 304 .name = (stringify(_field)), \ 305 .version_id = (_version), \ 306 .num_offset = vmstate_offset_value(_state, _field_num, uint16_t),\ 307 .info = &(_info), \ 308 .size = sizeof(_type), \ 309 .flags = VMS_VARRAY_UINT16, \ 310 .offset = offsetof(_state, _field), \ 311 } 312 313 #define VMSTATE_STRUCT_TEST(_field, _state, _test, _version, _vmsd, _type) { \ 314 .name = (stringify(_field)), \ 315 .version_id = (_version), \ 316 .field_exists = (_test), \ 317 .vmsd = &(_vmsd), \ 318 .size = sizeof(_type), \ 319 .flags = VMS_STRUCT, \ 320 .offset = vmstate_offset_value(_state, _field, _type), \ 321 } 322 323 #define VMSTATE_STRUCT_POINTER_V(_field, _state, _version, _vmsd, _type) { \ 324 .name = (stringify(_field)), \ 325 .version_id = (_version), \ 326 .vmsd = &(_vmsd), \ 327 .size = sizeof(_type *), \ 328 .flags = VMS_STRUCT|VMS_POINTER, \ 329 .offset = vmstate_offset_pointer(_state, _field, _type), \ 330 } 331 332 #define VMSTATE_STRUCT_POINTER_TEST_V(_field, _state, _test, _version, _vmsd, _type) { \ 333 .name = (stringify(_field)), \ 334 .version_id = (_version), \ 335 .field_exists = (_test), \ 336 .vmsd = &(_vmsd), \ 337 .size = sizeof(_type *), \ 338 .flags = VMS_STRUCT|VMS_POINTER, \ 339 .offset = vmstate_offset_pointer(_state, _field, _type), \ 340 } 341 342 #define VMSTATE_ARRAY_OF_POINTER(_field, _state, _num, _version, _info, _type) {\ 343 .name = (stringify(_field)), \ 344 .version_id = (_version), \ 345 .num = (_num), \ 346 .info = &(_info), \ 347 .size = sizeof(_type), \ 348 .flags = VMS_ARRAY|VMS_ARRAY_OF_POINTER, \ 349 .offset = vmstate_offset_array(_state, _field, _type, _num), \ 350 } 351 352 #define VMSTATE_ARRAY_OF_POINTER_TO_STRUCT(_f, _s, _n, _v, _vmsd, _type) { \ 353 .name = (stringify(_f)), \ 354 .version_id = (_v), \ 355 .num = (_n), \ 356 .vmsd = &(_vmsd), \ 357 .size = sizeof(_type *), \ 358 .flags = VMS_ARRAY|VMS_STRUCT|VMS_ARRAY_OF_POINTER, \ 359 .offset = vmstate_offset_array(_s, _f, _type*, _n), \ 360 } 361 362 #define VMSTATE_STRUCT_ARRAY_TEST(_field, _state, _num, _test, _version, _vmsd, _type) { \ 363 .name = (stringify(_field)), \ 364 .num = (_num), \ 365 .field_exists = (_test), \ 366 .version_id = (_version), \ 367 .vmsd = &(_vmsd), \ 368 .size = sizeof(_type), \ 369 .flags = VMS_STRUCT|VMS_ARRAY, \ 370 .offset = vmstate_offset_array(_state, _field, _type, _num),\ 371 } 372 373 #define VMSTATE_STRUCT_VARRAY_UINT8(_field, _state, _field_num, _version, _vmsd, _type) { \ 374 .name = (stringify(_field)), \ 375 .num_offset = vmstate_offset_value(_state, _field_num, uint8_t), \ 376 .version_id = (_version), \ 377 .vmsd = &(_vmsd), \ 378 .size = sizeof(_type), \ 379 .flags = VMS_STRUCT|VMS_VARRAY_UINT8, \ 380 .offset = offsetof(_state, _field), \ 381 } 382 383 #define VMSTATE_STRUCT_VARRAY_POINTER_INT32(_field, _state, _field_num, _vmsd, _type) { \ 384 .name = (stringify(_field)), \ 385 .version_id = 0, \ 386 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \ 387 .size = sizeof(_type), \ 388 .vmsd = &(_vmsd), \ 389 .flags = VMS_POINTER | VMS_VARRAY_INT32 | VMS_STRUCT, \ 390 .offset = vmstate_offset_pointer(_state, _field, _type), \ 391 } 392 393 #define VMSTATE_STRUCT_VARRAY_POINTER_UINT32(_field, _state, _field_num, _vmsd, _type) { \ 394 .name = (stringify(_field)), \ 395 .version_id = 0, \ 396 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\ 397 .size = sizeof(_type), \ 398 .vmsd = &(_vmsd), \ 399 .flags = VMS_POINTER | VMS_VARRAY_INT32 | VMS_STRUCT, \ 400 .offset = vmstate_offset_pointer(_state, _field, _type), \ 401 } 402 403 #define VMSTATE_STRUCT_VARRAY_POINTER_UINT16(_field, _state, _field_num, _vmsd, _type) { \ 404 .name = (stringify(_field)), \ 405 .version_id = 0, \ 406 .num_offset = vmstate_offset_value(_state, _field_num, uint16_t),\ 407 .size = sizeof(_type), \ 408 .vmsd = &(_vmsd), \ 409 .flags = VMS_POINTER | VMS_VARRAY_UINT16 | VMS_STRUCT, \ 410 .offset = vmstate_offset_pointer(_state, _field, _type), \ 411 } 412 413 #define VMSTATE_STRUCT_VARRAY_INT32(_field, _state, _field_num, _version, _vmsd, _type) { \ 414 .name = (stringify(_field)), \ 415 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \ 416 .version_id = (_version), \ 417 .vmsd = &(_vmsd), \ 418 .size = sizeof(_type), \ 419 .flags = VMS_STRUCT|VMS_VARRAY_INT32, \ 420 .offset = offsetof(_state, _field), \ 421 } 422 423 #define VMSTATE_STRUCT_VARRAY_UINT32(_field, _state, _field_num, _version, _vmsd, _type) { \ 424 .name = (stringify(_field)), \ 425 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t), \ 426 .version_id = (_version), \ 427 .vmsd = &(_vmsd), \ 428 .size = sizeof(_type), \ 429 .flags = VMS_STRUCT|VMS_VARRAY_UINT32, \ 430 .offset = offsetof(_state, _field), \ 431 } 432 433 #define VMSTATE_STRUCT_VARRAY_ALLOC(_field, _state, _field_num, _version, _vmsd, _type) {\ 434 .name = (stringify(_field)), \ 435 .version_id = (_version), \ 436 .vmsd = &(_vmsd), \ 437 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \ 438 .size = sizeof(_type), \ 439 .flags = VMS_STRUCT|VMS_VARRAY_INT32|VMS_ALLOC|VMS_POINTER, \ 440 .offset = vmstate_offset_pointer(_state, _field, _type), \ 441 } 442 443 #define VMSTATE_STATIC_BUFFER(_field, _state, _version, _test, _start, _size) { \ 444 .name = (stringify(_field)), \ 445 .version_id = (_version), \ 446 .field_exists = (_test), \ 447 .size = (_size - _start), \ 448 .info = &vmstate_info_buffer, \ 449 .flags = VMS_BUFFER, \ 450 .offset = vmstate_offset_buffer(_state, _field) + _start, \ 451 } 452 453 #define VMSTATE_VBUFFER_MULTIPLY(_field, _state, _version, _test, _start, _field_size, _multiply) { \ 454 .name = (stringify(_field)), \ 455 .version_id = (_version), \ 456 .field_exists = (_test), \ 457 .size_offset = vmstate_offset_value(_state, _field_size, uint32_t),\ 458 .size = (_multiply), \ 459 .info = &vmstate_info_buffer, \ 460 .flags = VMS_VBUFFER|VMS_POINTER|VMS_MULTIPLY, \ 461 .offset = offsetof(_state, _field), \ 462 .start = (_start), \ 463 } 464 465 #define VMSTATE_VBUFFER(_field, _state, _version, _test, _start, _field_size) { \ 466 .name = (stringify(_field)), \ 467 .version_id = (_version), \ 468 .field_exists = (_test), \ 469 .size_offset = vmstate_offset_value(_state, _field_size, int32_t),\ 470 .info = &vmstate_info_buffer, \ 471 .flags = VMS_VBUFFER|VMS_POINTER, \ 472 .offset = offsetof(_state, _field), \ 473 .start = (_start), \ 474 } 475 476 #define VMSTATE_VBUFFER_UINT32(_field, _state, _version, _test, _start, _field_size) { \ 477 .name = (stringify(_field)), \ 478 .version_id = (_version), \ 479 .field_exists = (_test), \ 480 .size_offset = vmstate_offset_value(_state, _field_size, uint32_t),\ 481 .info = &vmstate_info_buffer, \ 482 .flags = VMS_VBUFFER|VMS_POINTER, \ 483 .offset = offsetof(_state, _field), \ 484 .start = (_start), \ 485 } 486 487 #define VMSTATE_BUFFER_UNSAFE_INFO(_field, _state, _version, _info, _size) { \ 488 .name = (stringify(_field)), \ 489 .version_id = (_version), \ 490 .size = (_size), \ 491 .info = &(_info), \ 492 .flags = VMS_BUFFER, \ 493 .offset = offsetof(_state, _field), \ 494 } 495 496 #define VMSTATE_BUFFER_POINTER_UNSAFE(_field, _state, _version, _size) { \ 497 .name = (stringify(_field)), \ 498 .version_id = (_version), \ 499 .size = (_size), \ 500 .info = &vmstate_info_buffer, \ 501 .flags = VMS_BUFFER|VMS_POINTER, \ 502 .offset = offsetof(_state, _field), \ 503 } 504 505 #define VMSTATE_UNUSED_BUFFER(_test, _version, _size) { \ 506 .name = "unused", \ 507 .field_exists = (_test), \ 508 .version_id = (_version), \ 509 .size = (_size), \ 510 .info = &vmstate_info_unused_buffer, \ 511 .flags = VMS_BUFFER, \ 512 } 513 514 /* _field_size should be a int32_t field in the _state struct giving the 515 * size of the bitmap _field in bits. 516 */ 517 #define VMSTATE_BITMAP(_field, _state, _version, _field_size) { \ 518 .name = (stringify(_field)), \ 519 .version_id = (_version), \ 520 .size_offset = vmstate_offset_value(_state, _field_size, int32_t),\ 521 .info = &vmstate_info_bitmap, \ 522 .flags = VMS_VBUFFER|VMS_POINTER, \ 523 .offset = offsetof(_state, _field), \ 524 } 525 526 /* _f : field name 527 _f_n : num of elements field_name 528 _n : num of elements 529 _s : struct state name 530 _v : version 531 */ 532 533 #define VMSTATE_SINGLE(_field, _state, _version, _info, _type) \ 534 VMSTATE_SINGLE_TEST(_field, _state, NULL, _version, _info, _type) 535 536 #define VMSTATE_STRUCT(_field, _state, _version, _vmsd, _type) \ 537 VMSTATE_STRUCT_TEST(_field, _state, NULL, _version, _vmsd, _type) 538 539 #define VMSTATE_STRUCT_POINTER(_field, _state, _vmsd, _type) \ 540 VMSTATE_STRUCT_POINTER_V(_field, _state, 0, _vmsd, _type) 541 542 #define VMSTATE_STRUCT_POINTER_TEST(_field, _state, _test, _vmsd, _type) \ 543 VMSTATE_STRUCT_POINTER_TEST_V(_field, _state, _test, 0, _vmsd, _type) 544 545 #define VMSTATE_STRUCT_ARRAY(_field, _state, _num, _version, _vmsd, _type) \ 546 VMSTATE_STRUCT_ARRAY_TEST(_field, _state, _num, NULL, _version, \ 547 _vmsd, _type) 548 549 #define VMSTATE_BOOL_V(_f, _s, _v) \ 550 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_bool, bool) 551 552 #define VMSTATE_INT8_V(_f, _s, _v) \ 553 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int8, int8_t) 554 #define VMSTATE_INT16_V(_f, _s, _v) \ 555 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int16, int16_t) 556 #define VMSTATE_INT32_V(_f, _s, _v) \ 557 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int32, int32_t) 558 #define VMSTATE_INT64_V(_f, _s, _v) \ 559 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int64, int64_t) 560 561 #define VMSTATE_UINT8_V(_f, _s, _v) \ 562 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint8, uint8_t) 563 #define VMSTATE_UINT16_V(_f, _s, _v) \ 564 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint16, uint16_t) 565 #define VMSTATE_UINT32_V(_f, _s, _v) \ 566 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint32, uint32_t) 567 #define VMSTATE_UINT64_V(_f, _s, _v) \ 568 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint64, uint64_t) 569 570 #define VMSTATE_BOOL(_f, _s) \ 571 VMSTATE_BOOL_V(_f, _s, 0) 572 573 #define VMSTATE_INT8(_f, _s) \ 574 VMSTATE_INT8_V(_f, _s, 0) 575 #define VMSTATE_INT16(_f, _s) \ 576 VMSTATE_INT16_V(_f, _s, 0) 577 #define VMSTATE_INT32(_f, _s) \ 578 VMSTATE_INT32_V(_f, _s, 0) 579 #define VMSTATE_INT64(_f, _s) \ 580 VMSTATE_INT64_V(_f, _s, 0) 581 582 #define VMSTATE_UINT8(_f, _s) \ 583 VMSTATE_UINT8_V(_f, _s, 0) 584 #define VMSTATE_UINT16(_f, _s) \ 585 VMSTATE_UINT16_V(_f, _s, 0) 586 #define VMSTATE_UINT32(_f, _s) \ 587 VMSTATE_UINT32_V(_f, _s, 0) 588 #define VMSTATE_UINT64(_f, _s) \ 589 VMSTATE_UINT64_V(_f, _s, 0) 590 591 #define VMSTATE_UINT8_EQUAL(_f, _s) \ 592 VMSTATE_SINGLE(_f, _s, 0, vmstate_info_uint8_equal, uint8_t) 593 594 #define VMSTATE_UINT16_EQUAL(_f, _s) \ 595 VMSTATE_SINGLE(_f, _s, 0, vmstate_info_uint16_equal, uint16_t) 596 597 #define VMSTATE_UINT16_EQUAL_V(_f, _s, _v) \ 598 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint16_equal, uint16_t) 599 600 #define VMSTATE_INT32_EQUAL(_f, _s) \ 601 VMSTATE_SINGLE(_f, _s, 0, vmstate_info_int32_equal, int32_t) 602 603 #define VMSTATE_UINT32_EQUAL_V(_f, _s, _v) \ 604 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint32_equal, uint32_t) 605 606 #define VMSTATE_UINT32_EQUAL(_f, _s) \ 607 VMSTATE_UINT32_EQUAL_V(_f, _s, 0) 608 609 #define VMSTATE_UINT64_EQUAL_V(_f, _s, _v) \ 610 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint64_equal, uint64_t) 611 612 #define VMSTATE_UINT64_EQUAL(_f, _s) \ 613 VMSTATE_UINT64_EQUAL_V(_f, _s, 0) 614 615 #define VMSTATE_INT32_POSITIVE_LE(_f, _s) \ 616 VMSTATE_SINGLE(_f, _s, 0, vmstate_info_int32_le, int32_t) 617 618 #define VMSTATE_UINT8_TEST(_f, _s, _t) \ 619 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint8, uint8_t) 620 621 #define VMSTATE_UINT16_TEST(_f, _s, _t) \ 622 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint16, uint16_t) 623 624 #define VMSTATE_UINT32_TEST(_f, _s, _t) \ 625 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint32, uint32_t) 626 627 628 #define VMSTATE_FLOAT64_V(_f, _s, _v) \ 629 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_float64, float64) 630 631 #define VMSTATE_FLOAT64(_f, _s) \ 632 VMSTATE_FLOAT64_V(_f, _s, 0) 633 634 #define VMSTATE_TIMER_TEST(_f, _s, _test) \ 635 VMSTATE_POINTER_TEST(_f, _s, _test, vmstate_info_timer, QEMUTimer *) 636 637 #define VMSTATE_TIMER_V(_f, _s, _v) \ 638 VMSTATE_POINTER(_f, _s, _v, vmstate_info_timer, QEMUTimer *) 639 640 #define VMSTATE_TIMER(_f, _s) \ 641 VMSTATE_TIMER_V(_f, _s, 0) 642 643 #define VMSTATE_TIMER_ARRAY(_f, _s, _n) \ 644 VMSTATE_ARRAY_OF_POINTER(_f, _s, _n, 0, vmstate_info_timer, QEMUTimer *) 645 646 #define VMSTATE_BOOL_ARRAY_V(_f, _s, _n, _v) \ 647 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_bool, bool) 648 649 #define VMSTATE_BOOL_ARRAY(_f, _s, _n) \ 650 VMSTATE_BOOL_ARRAY_V(_f, _s, _n, 0) 651 652 #define VMSTATE_UINT16_ARRAY_V(_f, _s, _n, _v) \ 653 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint16, uint16_t) 654 655 #define VMSTATE_UINT16_2DARRAY_V(_f, _s, _n1, _n2, _v) \ 656 VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint16, uint16_t) 657 658 #define VMSTATE_UINT16_ARRAY(_f, _s, _n) \ 659 VMSTATE_UINT16_ARRAY_V(_f, _s, _n, 0) 660 661 #define VMSTATE_UINT16_2DARRAY(_f, _s, _n1, _n2) \ 662 VMSTATE_UINT16_2DARRAY_V(_f, _s, _n1, _n2, 0) 663 664 #define VMSTATE_UINT8_2DARRAY_V(_f, _s, _n1, _n2, _v) \ 665 VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint8, uint8_t) 666 667 #define VMSTATE_UINT8_ARRAY_V(_f, _s, _n, _v) \ 668 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint8, uint8_t) 669 670 #define VMSTATE_UINT8_ARRAY(_f, _s, _n) \ 671 VMSTATE_UINT8_ARRAY_V(_f, _s, _n, 0) 672 673 #define VMSTATE_UINT8_SUB_ARRAY(_f, _s, _start, _num) \ 674 VMSTATE_SUB_ARRAY(_f, _s, _start, _num, 0, vmstate_info_uint8, uint8_t) 675 676 #define VMSTATE_UINT8_2DARRAY(_f, _s, _n1, _n2) \ 677 VMSTATE_UINT8_2DARRAY_V(_f, _s, _n1, _n2, 0) 678 679 #define VMSTATE_UINT32_ARRAY_V(_f, _s, _n, _v) \ 680 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint32, uint32_t) 681 682 #define VMSTATE_UINT32_2DARRAY_V(_f, _s, _n1, _n2, _v) \ 683 VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint32, uint32_t) 684 685 #define VMSTATE_UINT32_ARRAY(_f, _s, _n) \ 686 VMSTATE_UINT32_ARRAY_V(_f, _s, _n, 0) 687 688 #define VMSTATE_UINT32_2DARRAY(_f, _s, _n1, _n2) \ 689 VMSTATE_UINT32_2DARRAY_V(_f, _s, _n1, _n2, 0) 690 691 #define VMSTATE_UINT64_ARRAY_V(_f, _s, _n, _v) \ 692 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint64, uint64_t) 693 694 #define VMSTATE_UINT64_ARRAY(_f, _s, _n) \ 695 VMSTATE_UINT64_ARRAY_V(_f, _s, _n, 0) 696 697 #define VMSTATE_INT16_ARRAY_V(_f, _s, _n, _v) \ 698 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int16, int16_t) 699 700 #define VMSTATE_INT16_ARRAY(_f, _s, _n) \ 701 VMSTATE_INT16_ARRAY_V(_f, _s, _n, 0) 702 703 #define VMSTATE_INT32_ARRAY_V(_f, _s, _n, _v) \ 704 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int32, int32_t) 705 706 #define VMSTATE_INT32_ARRAY(_f, _s, _n) \ 707 VMSTATE_INT32_ARRAY_V(_f, _s, _n, 0) 708 709 #define VMSTATE_UINT32_SUB_ARRAY(_f, _s, _start, _num) \ 710 VMSTATE_SUB_ARRAY(_f, _s, _start, _num, 0, vmstate_info_uint32, uint32_t) 711 712 #define VMSTATE_UINT32_ARRAY(_f, _s, _n) \ 713 VMSTATE_UINT32_ARRAY_V(_f, _s, _n, 0) 714 715 #define VMSTATE_INT64_ARRAY_V(_f, _s, _n, _v) \ 716 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int64, int64_t) 717 718 #define VMSTATE_INT64_ARRAY(_f, _s, _n) \ 719 VMSTATE_INT64_ARRAY_V(_f, _s, _n, 0) 720 721 #define VMSTATE_FLOAT64_ARRAY_V(_f, _s, _n, _v) \ 722 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_float64, float64) 723 724 #define VMSTATE_FLOAT64_ARRAY(_f, _s, _n) \ 725 VMSTATE_FLOAT64_ARRAY_V(_f, _s, _n, 0) 726 727 #define VMSTATE_BUFFER_V(_f, _s, _v) \ 728 VMSTATE_STATIC_BUFFER(_f, _s, _v, NULL, 0, sizeof(typeof_field(_s, _f))) 729 730 #define VMSTATE_BUFFER(_f, _s) \ 731 VMSTATE_BUFFER_V(_f, _s, 0) 732 733 #define VMSTATE_PARTIAL_BUFFER(_f, _s, _size) \ 734 VMSTATE_STATIC_BUFFER(_f, _s, 0, NULL, 0, _size) 735 736 #define VMSTATE_BUFFER_START_MIDDLE(_f, _s, _start) \ 737 VMSTATE_STATIC_BUFFER(_f, _s, 0, NULL, _start, sizeof(typeof_field(_s, _f))) 738 739 #define VMSTATE_PARTIAL_VBUFFER(_f, _s, _size) \ 740 VMSTATE_VBUFFER(_f, _s, 0, NULL, 0, _size) 741 742 #define VMSTATE_PARTIAL_VBUFFER_UINT32(_f, _s, _size) \ 743 VMSTATE_VBUFFER_UINT32(_f, _s, 0, NULL, 0, _size) 744 745 #define VMSTATE_SUB_VBUFFER(_f, _s, _start, _size) \ 746 VMSTATE_VBUFFER(_f, _s, 0, NULL, _start, _size) 747 748 #define VMSTATE_BUFFER_TEST(_f, _s, _test) \ 749 VMSTATE_STATIC_BUFFER(_f, _s, 0, _test, 0, sizeof(typeof_field(_s, _f))) 750 751 #define VMSTATE_BUFFER_UNSAFE(_field, _state, _version, _size) \ 752 VMSTATE_BUFFER_UNSAFE_INFO(_field, _state, _version, vmstate_info_buffer, _size) 753 754 #define VMSTATE_UNUSED_V(_v, _size) \ 755 VMSTATE_UNUSED_BUFFER(NULL, _v, _size) 756 757 #define VMSTATE_UNUSED(_size) \ 758 VMSTATE_UNUSED_V(0, _size) 759 760 #define VMSTATE_UNUSED_TEST(_test, _size) \ 761 VMSTATE_UNUSED_BUFFER(_test, 0, _size) 762 763 #define VMSTATE_END_OF_LIST() \ 764 {} 765 766 #define SELF_ANNOUNCE_ROUNDS 5 767 768 int vmstate_load_state(QEMUFile *f, const VMStateDescription *vmsd, 769 void *opaque, int version_id); 770 void vmstate_save_state(QEMUFile *f, const VMStateDescription *vmsd, 771 void *opaque); 772 773 int vmstate_register_with_alias_id(DeviceState *dev, int instance_id, 774 const VMStateDescription *vmsd, 775 void *base, int alias_id, 776 int required_for_version); 777 778 static inline int vmstate_register(DeviceState *dev, int instance_id, 779 const VMStateDescription *vmsd, 780 void *opaque) 781 { 782 return vmstate_register_with_alias_id(dev, instance_id, vmsd, 783 opaque, -1, 0); 784 } 785 786 void vmstate_unregister(DeviceState *dev, const VMStateDescription *vmsd, 787 void *opaque); 788 789 struct MemoryRegion; 790 void vmstate_register_ram(struct MemoryRegion *memory, DeviceState *dev); 791 void vmstate_unregister_ram(struct MemoryRegion *memory, DeviceState *dev); 792 void vmstate_register_ram_global(struct MemoryRegion *memory); 793 794 static inline 795 int64_t self_announce_delay(int round) 796 { 797 assert(round < SELF_ANNOUNCE_ROUNDS && round > 0); 798 /* delay 50ms, 150ms, 250ms, ... */ 799 return 50 + (SELF_ANNOUNCE_ROUNDS - round - 1) * 100; 800 } 801 802 void dump_vmstate_json_to_file(FILE *out_fp); 803 804 #endif 805