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 #include "migration/qjson.h" 31 32 typedef struct VMStateInfo VMStateInfo; 33 typedef struct VMStateDescription VMStateDescription; 34 typedef struct VMStateField VMStateField; 35 36 /* VMStateInfo allows customized migration of objects that don't fit in 37 * any category in VMStateFlags. Additional information is always passed 38 * into get and put in terms of field and vmdesc parameters. However 39 * these two parameters should only be used in cases when customized 40 * handling is needed, such as QTAILQ. For primitive data types such as 41 * integer, field and vmdesc parameters should be ignored inside get/put. 42 */ 43 struct VMStateInfo { 44 const char *name; 45 int (*get)(QEMUFile *f, void *pv, size_t size, VMStateField *field); 46 int (*put)(QEMUFile *f, void *pv, size_t size, VMStateField *field, 47 QJSON *vmdesc); 48 }; 49 50 enum VMStateFlags { 51 /* Ignored */ 52 VMS_SINGLE = 0x001, 53 54 /* The struct member at opaque + VMStateField.offset is a pointer 55 * to the actual field (e.g. struct a { uint8_t *b; 56 * }). Dereference the pointer before using it as basis for 57 * further pointer arithmetic (see e.g. VMS_ARRAY). Does not 58 * affect the meaning of VMStateField.num_offset or 59 * VMStateField.size_offset; see VMS_VARRAY* and VMS_VBUFFER for 60 * those. */ 61 VMS_POINTER = 0x002, 62 63 /* The field is an array of fixed size. VMStateField.num contains 64 * the number of entries in the array. The size of each entry is 65 * given by VMStateField.size and / or opaque + 66 * VMStateField.size_offset; see VMS_VBUFFER and 67 * VMS_MULTIPLY. Each array entry will be processed individually 68 * (VMStateField.info.get()/put() if VMS_STRUCT is not set, 69 * recursion into VMStateField.vmsd if VMS_STRUCT is set). May not 70 * be combined with VMS_VARRAY*. */ 71 VMS_ARRAY = 0x004, 72 73 /* The field is itself a struct, containing one or more 74 * fields. Recurse into VMStateField.vmsd. Most useful in 75 * combination with VMS_ARRAY / VMS_VARRAY*, recursing into each 76 * array entry. */ 77 VMS_STRUCT = 0x008, 78 79 /* The field is an array of variable size. The int32_t at opaque + 80 * VMStateField.num_offset contains the number of entries in the 81 * array. See the VMS_ARRAY description regarding array handling 82 * in general. May not be combined with VMS_ARRAY or any other 83 * VMS_VARRAY*. */ 84 VMS_VARRAY_INT32 = 0x010, 85 86 /* Ignored */ 87 VMS_BUFFER = 0x020, 88 89 /* The field is a (fixed-size or variable-size) array of pointers 90 * (e.g. struct a { uint8_t *b[]; }). Dereference each array entry 91 * before using it. Note: Does not imply any one of VMS_ARRAY / 92 * VMS_VARRAY*; these need to be set explicitly. */ 93 VMS_ARRAY_OF_POINTER = 0x040, 94 95 /* The field is an array of variable size. The uint16_t at opaque 96 * + VMStateField.num_offset (subject to VMS_MULTIPLY_ELEMENTS) 97 * contains the number of entries in the array. See the VMS_ARRAY 98 * description regarding array handling in general. May not be 99 * combined with VMS_ARRAY or any other VMS_VARRAY*. */ 100 VMS_VARRAY_UINT16 = 0x080, 101 102 /* The size of the individual entries (a single array entry if 103 * VMS_ARRAY or any of VMS_VARRAY* are set, or the field itself if 104 * neither is set) is variable (i.e. not known at compile-time), 105 * but the same for all entries. Use the int32_t at opaque + 106 * VMStateField.size_offset (subject to VMS_MULTIPLY) to determine 107 * the size of each (and every) entry. */ 108 VMS_VBUFFER = 0x100, 109 110 /* Multiply the entry size given by the int32_t at opaque + 111 * VMStateField.size_offset (see VMS_VBUFFER description) with 112 * VMStateField.size to determine the number of bytes to be 113 * allocated. Only valid in combination with VMS_VBUFFER. */ 114 VMS_MULTIPLY = 0x200, 115 116 /* The field is an array of variable size. The uint8_t at opaque + 117 * VMStateField.num_offset (subject to VMS_MULTIPLY_ELEMENTS) 118 * contains the number of entries in the array. See the VMS_ARRAY 119 * description regarding array handling in general. May not be 120 * combined with VMS_ARRAY or any other VMS_VARRAY*. */ 121 VMS_VARRAY_UINT8 = 0x400, 122 123 /* The field is an array of variable size. The uint32_t at opaque 124 * + VMStateField.num_offset (subject to VMS_MULTIPLY_ELEMENTS) 125 * contains the number of entries in the array. See the VMS_ARRAY 126 * description regarding array handling in general. May not be 127 * combined with VMS_ARRAY or any other VMS_VARRAY*. */ 128 VMS_VARRAY_UINT32 = 0x800, 129 130 /* Fail loading the serialised VM state if this field is missing 131 * from the input. */ 132 VMS_MUST_EXIST = 0x1000, 133 134 /* When loading serialised VM state, allocate memory for the 135 * (entire) field. Only valid in combination with 136 * VMS_POINTER. Note: Not all combinations with other flags are 137 * currently supported, e.g. VMS_ALLOC|VMS_ARRAY_OF_POINTER won't 138 * cause the individual entries to be allocated. */ 139 VMS_ALLOC = 0x2000, 140 141 /* Multiply the number of entries given by the integer at opaque + 142 * VMStateField.num_offset (see VMS_VARRAY*) with VMStateField.num 143 * to determine the number of entries in the array. Only valid in 144 * combination with one of VMS_VARRAY*. */ 145 VMS_MULTIPLY_ELEMENTS = 0x4000, 146 }; 147 148 typedef enum { 149 MIG_PRI_DEFAULT = 0, 150 MIG_PRI_IOMMU, /* Must happen before PCI devices */ 151 MIG_PRI_GICV3_ITS, /* Must happen before PCI devices */ 152 MIG_PRI_GICV3, /* Must happen before the ITS */ 153 MIG_PRI_MAX, 154 } MigrationPriority; 155 156 struct VMStateField { 157 const char *name; 158 size_t offset; 159 size_t size; 160 size_t start; 161 int num; 162 size_t num_offset; 163 size_t size_offset; 164 const VMStateInfo *info; 165 enum VMStateFlags flags; 166 const VMStateDescription *vmsd; 167 int version_id; 168 bool (*field_exists)(void *opaque, int version_id); 169 }; 170 171 struct VMStateDescription { 172 const char *name; 173 int unmigratable; 174 int version_id; 175 int minimum_version_id; 176 int minimum_version_id_old; 177 MigrationPriority priority; 178 LoadStateHandler *load_state_old; 179 int (*pre_load)(void *opaque); 180 int (*post_load)(void *opaque, int version_id); 181 void (*pre_save)(void *opaque); 182 bool (*needed)(void *opaque); 183 VMStateField *fields; 184 const VMStateDescription **subsections; 185 }; 186 187 extern const VMStateDescription vmstate_dummy; 188 189 extern const VMStateInfo vmstate_info_bool; 190 191 extern const VMStateInfo vmstate_info_int8; 192 extern const VMStateInfo vmstate_info_int16; 193 extern const VMStateInfo vmstate_info_int32; 194 extern const VMStateInfo vmstate_info_int64; 195 196 extern const VMStateInfo vmstate_info_uint8_equal; 197 extern const VMStateInfo vmstate_info_uint16_equal; 198 extern const VMStateInfo vmstate_info_int32_equal; 199 extern const VMStateInfo vmstate_info_uint32_equal; 200 extern const VMStateInfo vmstate_info_uint64_equal; 201 extern const VMStateInfo vmstate_info_int32_le; 202 203 extern const VMStateInfo vmstate_info_uint8; 204 extern const VMStateInfo vmstate_info_uint16; 205 extern const VMStateInfo vmstate_info_uint32; 206 extern const VMStateInfo vmstate_info_uint64; 207 208 /** Put this in the stream when migrating a null pointer.*/ 209 #define VMS_NULLPTR_MARKER (0x30U) /* '0' */ 210 extern const VMStateInfo vmstate_info_nullptr; 211 212 extern const VMStateInfo vmstate_info_float64; 213 extern const VMStateInfo vmstate_info_cpudouble; 214 215 extern const VMStateInfo vmstate_info_timer; 216 extern const VMStateInfo vmstate_info_buffer; 217 extern const VMStateInfo vmstate_info_unused_buffer; 218 extern const VMStateInfo vmstate_info_tmp; 219 extern const VMStateInfo vmstate_info_bitmap; 220 extern const VMStateInfo vmstate_info_qtailq; 221 222 #define type_check_2darray(t1,t2,n,m) ((t1(*)[n][m])0 - (t2*)0) 223 #define type_check_array(t1,t2,n) ((t1(*)[n])0 - (t2*)0) 224 #define type_check_pointer(t1,t2) ((t1**)0 - (t2*)0) 225 226 #define vmstate_offset_value(_state, _field, _type) \ 227 (offsetof(_state, _field) + \ 228 type_check(_type, typeof_field(_state, _field))) 229 230 #define vmstate_offset_pointer(_state, _field, _type) \ 231 (offsetof(_state, _field) + \ 232 type_check_pointer(_type, typeof_field(_state, _field))) 233 234 #define vmstate_offset_array(_state, _field, _type, _num) \ 235 (offsetof(_state, _field) + \ 236 type_check_array(_type, typeof_field(_state, _field), _num)) 237 238 #define vmstate_offset_2darray(_state, _field, _type, _n1, _n2) \ 239 (offsetof(_state, _field) + \ 240 type_check_2darray(_type, typeof_field(_state, _field), _n1, _n2)) 241 242 #define vmstate_offset_sub_array(_state, _field, _type, _start) \ 243 vmstate_offset_value(_state, _field[_start], _type) 244 245 #define vmstate_offset_buffer(_state, _field) \ 246 vmstate_offset_array(_state, _field, uint8_t, \ 247 sizeof(typeof_field(_state, _field))) 248 249 #define VMSTATE_SINGLE_TEST(_field, _state, _test, _version, _info, _type) { \ 250 .name = (stringify(_field)), \ 251 .version_id = (_version), \ 252 .field_exists = (_test), \ 253 .size = sizeof(_type), \ 254 .info = &(_info), \ 255 .flags = VMS_SINGLE, \ 256 .offset = vmstate_offset_value(_state, _field, _type), \ 257 } 258 259 /* Validate state using a boolean predicate. */ 260 #define VMSTATE_VALIDATE(_name, _test) { \ 261 .name = (_name), \ 262 .field_exists = (_test), \ 263 .flags = VMS_ARRAY | VMS_MUST_EXIST, \ 264 .num = 0, /* 0 elements: no data, only run _test */ \ 265 } 266 267 #define VMSTATE_POINTER(_field, _state, _version, _info, _type) { \ 268 .name = (stringify(_field)), \ 269 .version_id = (_version), \ 270 .info = &(_info), \ 271 .size = sizeof(_type), \ 272 .flags = VMS_SINGLE|VMS_POINTER, \ 273 .offset = vmstate_offset_value(_state, _field, _type), \ 274 } 275 276 #define VMSTATE_POINTER_TEST(_field, _state, _test, _info, _type) { \ 277 .name = (stringify(_field)), \ 278 .info = &(_info), \ 279 .field_exists = (_test), \ 280 .size = sizeof(_type), \ 281 .flags = VMS_SINGLE|VMS_POINTER, \ 282 .offset = vmstate_offset_value(_state, _field, _type), \ 283 } 284 285 #define VMSTATE_ARRAY(_field, _state, _num, _version, _info, _type) {\ 286 .name = (stringify(_field)), \ 287 .version_id = (_version), \ 288 .num = (_num), \ 289 .info = &(_info), \ 290 .size = sizeof(_type), \ 291 .flags = VMS_ARRAY, \ 292 .offset = vmstate_offset_array(_state, _field, _type, _num), \ 293 } 294 295 #define VMSTATE_2DARRAY(_field, _state, _n1, _n2, _version, _info, _type) { \ 296 .name = (stringify(_field)), \ 297 .version_id = (_version), \ 298 .num = (_n1) * (_n2), \ 299 .info = &(_info), \ 300 .size = sizeof(_type), \ 301 .flags = VMS_ARRAY, \ 302 .offset = vmstate_offset_2darray(_state, _field, _type, _n1, _n2), \ 303 } 304 305 #define VMSTATE_VARRAY_MULTIPLY(_field, _state, _field_num, _multiply, _info, _type) { \ 306 .name = (stringify(_field)), \ 307 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\ 308 .num = (_multiply), \ 309 .info = &(_info), \ 310 .size = sizeof(_type), \ 311 .flags = VMS_VARRAY_UINT32|VMS_MULTIPLY_ELEMENTS, \ 312 .offset = offsetof(_state, _field), \ 313 } 314 315 #define VMSTATE_ARRAY_TEST(_field, _state, _num, _test, _info, _type) {\ 316 .name = (stringify(_field)), \ 317 .field_exists = (_test), \ 318 .num = (_num), \ 319 .info = &(_info), \ 320 .size = sizeof(_type), \ 321 .flags = VMS_ARRAY, \ 322 .offset = vmstate_offset_array(_state, _field, _type, _num),\ 323 } 324 325 #define VMSTATE_SUB_ARRAY(_field, _state, _start, _num, _version, _info, _type) { \ 326 .name = (stringify(_field)), \ 327 .version_id = (_version), \ 328 .num = (_num), \ 329 .info = &(_info), \ 330 .size = sizeof(_type), \ 331 .flags = VMS_ARRAY, \ 332 .offset = vmstate_offset_sub_array(_state, _field, _type, _start), \ 333 } 334 335 #define VMSTATE_ARRAY_INT32_UNSAFE(_field, _state, _field_num, _info, _type) {\ 336 .name = (stringify(_field)), \ 337 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \ 338 .info = &(_info), \ 339 .size = sizeof(_type), \ 340 .flags = VMS_VARRAY_INT32, \ 341 .offset = offsetof(_state, _field), \ 342 } 343 344 #define VMSTATE_VARRAY_INT32(_field, _state, _field_num, _version, _info, _type) {\ 345 .name = (stringify(_field)), \ 346 .version_id = (_version), \ 347 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \ 348 .info = &(_info), \ 349 .size = sizeof(_type), \ 350 .flags = VMS_VARRAY_INT32|VMS_POINTER, \ 351 .offset = vmstate_offset_pointer(_state, _field, _type), \ 352 } 353 354 #define VMSTATE_VARRAY_UINT32(_field, _state, _field_num, _version, _info, _type) {\ 355 .name = (stringify(_field)), \ 356 .version_id = (_version), \ 357 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\ 358 .info = &(_info), \ 359 .size = sizeof(_type), \ 360 .flags = VMS_VARRAY_UINT32|VMS_POINTER, \ 361 .offset = vmstate_offset_pointer(_state, _field, _type), \ 362 } 363 364 #define VMSTATE_VARRAY_UINT32_ALLOC(_field, _state, _field_num, _version, _info, _type) {\ 365 .name = (stringify(_field)), \ 366 .version_id = (_version), \ 367 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\ 368 .info = &(_info), \ 369 .size = sizeof(_type), \ 370 .flags = VMS_VARRAY_UINT32|VMS_POINTER|VMS_ALLOC, \ 371 .offset = vmstate_offset_pointer(_state, _field, _type), \ 372 } 373 374 #define VMSTATE_VARRAY_UINT16_UNSAFE(_field, _state, _field_num, _version, _info, _type) {\ 375 .name = (stringify(_field)), \ 376 .version_id = (_version), \ 377 .num_offset = vmstate_offset_value(_state, _field_num, uint16_t),\ 378 .info = &(_info), \ 379 .size = sizeof(_type), \ 380 .flags = VMS_VARRAY_UINT16, \ 381 .offset = offsetof(_state, _field), \ 382 } 383 384 #define VMSTATE_STRUCT_TEST(_field, _state, _test, _version, _vmsd, _type) { \ 385 .name = (stringify(_field)), \ 386 .version_id = (_version), \ 387 .field_exists = (_test), \ 388 .vmsd = &(_vmsd), \ 389 .size = sizeof(_type), \ 390 .flags = VMS_STRUCT, \ 391 .offset = vmstate_offset_value(_state, _field, _type), \ 392 } 393 394 #define VMSTATE_STRUCT_POINTER_V(_field, _state, _version, _vmsd, _type) { \ 395 .name = (stringify(_field)), \ 396 .version_id = (_version), \ 397 .vmsd = &(_vmsd), \ 398 .size = sizeof(_type *), \ 399 .flags = VMS_STRUCT|VMS_POINTER, \ 400 .offset = vmstate_offset_pointer(_state, _field, _type), \ 401 } 402 403 #define VMSTATE_STRUCT_POINTER_TEST_V(_field, _state, _test, _version, _vmsd, _type) { \ 404 .name = (stringify(_field)), \ 405 .version_id = (_version), \ 406 .field_exists = (_test), \ 407 .vmsd = &(_vmsd), \ 408 .size = sizeof(_type *), \ 409 .flags = VMS_STRUCT|VMS_POINTER, \ 410 .offset = vmstate_offset_pointer(_state, _field, _type), \ 411 } 412 413 #define VMSTATE_ARRAY_OF_POINTER(_field, _state, _num, _version, _info, _type) {\ 414 .name = (stringify(_field)), \ 415 .version_id = (_version), \ 416 .num = (_num), \ 417 .info = &(_info), \ 418 .size = sizeof(_type), \ 419 .flags = VMS_ARRAY|VMS_ARRAY_OF_POINTER, \ 420 .offset = vmstate_offset_array(_state, _field, _type, _num), \ 421 } 422 423 #define VMSTATE_ARRAY_OF_POINTER_TO_STRUCT(_f, _s, _n, _v, _vmsd, _type) { \ 424 .name = (stringify(_f)), \ 425 .version_id = (_v), \ 426 .num = (_n), \ 427 .vmsd = &(_vmsd), \ 428 .size = sizeof(_type *), \ 429 .flags = VMS_ARRAY|VMS_STRUCT|VMS_ARRAY_OF_POINTER, \ 430 .offset = vmstate_offset_array(_s, _f, _type*, _n), \ 431 } 432 433 #define VMSTATE_STRUCT_SUB_ARRAY(_field, _state, _start, _num, _version, _vmsd, _type) { \ 434 .name = (stringify(_field)), \ 435 .version_id = (_version), \ 436 .num = (_num), \ 437 .vmsd = &(_vmsd), \ 438 .size = sizeof(_type), \ 439 .flags = VMS_STRUCT|VMS_ARRAY, \ 440 .offset = vmstate_offset_sub_array(_state, _field, _type, _start), \ 441 } 442 443 #define VMSTATE_STRUCT_ARRAY_TEST(_field, _state, _num, _test, _version, _vmsd, _type) { \ 444 .name = (stringify(_field)), \ 445 .num = (_num), \ 446 .field_exists = (_test), \ 447 .version_id = (_version), \ 448 .vmsd = &(_vmsd), \ 449 .size = sizeof(_type), \ 450 .flags = VMS_STRUCT|VMS_ARRAY, \ 451 .offset = vmstate_offset_array(_state, _field, _type, _num),\ 452 } 453 454 #define VMSTATE_STRUCT_2DARRAY_TEST(_field, _state, _n1, _n2, _test, \ 455 _version, _vmsd, _type) { \ 456 .name = (stringify(_field)), \ 457 .num = (_n1) * (_n2), \ 458 .field_exists = (_test), \ 459 .version_id = (_version), \ 460 .vmsd = &(_vmsd), \ 461 .size = sizeof(_type), \ 462 .flags = VMS_STRUCT | VMS_ARRAY, \ 463 .offset = vmstate_offset_2darray(_state, _field, _type, \ 464 _n1, _n2), \ 465 } 466 467 #define VMSTATE_STRUCT_VARRAY_UINT8(_field, _state, _field_num, _version, _vmsd, _type) { \ 468 .name = (stringify(_field)), \ 469 .num_offset = vmstate_offset_value(_state, _field_num, uint8_t), \ 470 .version_id = (_version), \ 471 .vmsd = &(_vmsd), \ 472 .size = sizeof(_type), \ 473 .flags = VMS_STRUCT|VMS_VARRAY_UINT8, \ 474 .offset = offsetof(_state, _field), \ 475 } 476 477 /* a variable length array (i.e. _type *_field) but we know the 478 * length 479 */ 480 #define VMSTATE_STRUCT_VARRAY_POINTER_KNOWN(_field, _state, _num, _version, _vmsd, _type) { \ 481 .name = (stringify(_field)), \ 482 .num = (_num), \ 483 .version_id = (_version), \ 484 .vmsd = &(_vmsd), \ 485 .size = sizeof(_type), \ 486 .flags = VMS_STRUCT|VMS_ARRAY|VMS_POINTER, \ 487 .offset = offsetof(_state, _field), \ 488 } 489 490 #define VMSTATE_STRUCT_VARRAY_POINTER_INT32(_field, _state, _field_num, _vmsd, _type) { \ 491 .name = (stringify(_field)), \ 492 .version_id = 0, \ 493 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \ 494 .size = sizeof(_type), \ 495 .vmsd = &(_vmsd), \ 496 .flags = VMS_POINTER | VMS_VARRAY_INT32 | VMS_STRUCT, \ 497 .offset = vmstate_offset_pointer(_state, _field, _type), \ 498 } 499 500 #define VMSTATE_STRUCT_VARRAY_POINTER_UINT32(_field, _state, _field_num, _vmsd, _type) { \ 501 .name = (stringify(_field)), \ 502 .version_id = 0, \ 503 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\ 504 .size = sizeof(_type), \ 505 .vmsd = &(_vmsd), \ 506 .flags = VMS_POINTER | VMS_VARRAY_INT32 | VMS_STRUCT, \ 507 .offset = vmstate_offset_pointer(_state, _field, _type), \ 508 } 509 510 #define VMSTATE_STRUCT_VARRAY_POINTER_UINT16(_field, _state, _field_num, _vmsd, _type) { \ 511 .name = (stringify(_field)), \ 512 .version_id = 0, \ 513 .num_offset = vmstate_offset_value(_state, _field_num, uint16_t),\ 514 .size = sizeof(_type), \ 515 .vmsd = &(_vmsd), \ 516 .flags = VMS_POINTER | VMS_VARRAY_UINT16 | VMS_STRUCT, \ 517 .offset = vmstate_offset_pointer(_state, _field, _type), \ 518 } 519 520 #define VMSTATE_STRUCT_VARRAY_INT32(_field, _state, _field_num, _version, _vmsd, _type) { \ 521 .name = (stringify(_field)), \ 522 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \ 523 .version_id = (_version), \ 524 .vmsd = &(_vmsd), \ 525 .size = sizeof(_type), \ 526 .flags = VMS_STRUCT|VMS_VARRAY_INT32, \ 527 .offset = offsetof(_state, _field), \ 528 } 529 530 #define VMSTATE_STRUCT_VARRAY_UINT32(_field, _state, _field_num, _version, _vmsd, _type) { \ 531 .name = (stringify(_field)), \ 532 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t), \ 533 .version_id = (_version), \ 534 .vmsd = &(_vmsd), \ 535 .size = sizeof(_type), \ 536 .flags = VMS_STRUCT|VMS_VARRAY_UINT32, \ 537 .offset = offsetof(_state, _field), \ 538 } 539 540 #define VMSTATE_STRUCT_VARRAY_ALLOC(_field, _state, _field_num, _version, _vmsd, _type) {\ 541 .name = (stringify(_field)), \ 542 .version_id = (_version), \ 543 .vmsd = &(_vmsd), \ 544 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \ 545 .size = sizeof(_type), \ 546 .flags = VMS_STRUCT|VMS_VARRAY_INT32|VMS_ALLOC|VMS_POINTER, \ 547 .offset = vmstate_offset_pointer(_state, _field, _type), \ 548 } 549 550 #define VMSTATE_STATIC_BUFFER(_field, _state, _version, _test, _start, _size) { \ 551 .name = (stringify(_field)), \ 552 .version_id = (_version), \ 553 .field_exists = (_test), \ 554 .size = (_size - _start), \ 555 .info = &vmstate_info_buffer, \ 556 .flags = VMS_BUFFER, \ 557 .offset = vmstate_offset_buffer(_state, _field) + _start, \ 558 } 559 560 #define VMSTATE_VBUFFER_MULTIPLY(_field, _state, _version, _test, \ 561 _field_size, _multiply) { \ 562 .name = (stringify(_field)), \ 563 .version_id = (_version), \ 564 .field_exists = (_test), \ 565 .size_offset = vmstate_offset_value(_state, _field_size, uint32_t),\ 566 .size = (_multiply), \ 567 .info = &vmstate_info_buffer, \ 568 .flags = VMS_VBUFFER|VMS_POINTER|VMS_MULTIPLY, \ 569 .offset = offsetof(_state, _field), \ 570 } 571 572 #define VMSTATE_VBUFFER(_field, _state, _version, _test, _field_size) { \ 573 .name = (stringify(_field)), \ 574 .version_id = (_version), \ 575 .field_exists = (_test), \ 576 .size_offset = vmstate_offset_value(_state, _field_size, int32_t),\ 577 .info = &vmstate_info_buffer, \ 578 .flags = VMS_VBUFFER|VMS_POINTER, \ 579 .offset = offsetof(_state, _field), \ 580 } 581 582 #define VMSTATE_VBUFFER_UINT32(_field, _state, _version, _test, _field_size) { \ 583 .name = (stringify(_field)), \ 584 .version_id = (_version), \ 585 .field_exists = (_test), \ 586 .size_offset = vmstate_offset_value(_state, _field_size, uint32_t),\ 587 .info = &vmstate_info_buffer, \ 588 .flags = VMS_VBUFFER|VMS_POINTER, \ 589 .offset = offsetof(_state, _field), \ 590 } 591 592 #define VMSTATE_VBUFFER_ALLOC_UINT32(_field, _state, _version, \ 593 _test, _field_size) { \ 594 .name = (stringify(_field)), \ 595 .version_id = (_version), \ 596 .field_exists = (_test), \ 597 .size_offset = vmstate_offset_value(_state, _field_size, uint32_t),\ 598 .info = &vmstate_info_buffer, \ 599 .flags = VMS_VBUFFER|VMS_POINTER|VMS_ALLOC, \ 600 .offset = offsetof(_state, _field), \ 601 } 602 603 #define VMSTATE_BUFFER_UNSAFE_INFO_TEST(_field, _state, _test, _version, _info, _size) { \ 604 .name = (stringify(_field)), \ 605 .version_id = (_version), \ 606 .field_exists = (_test), \ 607 .size = (_size), \ 608 .info = &(_info), \ 609 .flags = VMS_BUFFER, \ 610 .offset = offsetof(_state, _field), \ 611 } 612 613 #define VMSTATE_BUFFER_POINTER_UNSAFE(_field, _state, _version, _size) { \ 614 .name = (stringify(_field)), \ 615 .version_id = (_version), \ 616 .size = (_size), \ 617 .info = &vmstate_info_buffer, \ 618 .flags = VMS_BUFFER|VMS_POINTER, \ 619 .offset = offsetof(_state, _field), \ 620 } 621 622 /* Allocate a temporary of type 'tmp_type', set tmp->parent to _state 623 * and execute the vmsd on the temporary. Note that we're working with 624 * the whole of _state here, not a field within it. 625 * We compile time check that: 626 * That _tmp_type contains a 'parent' member that's a pointer to the 627 * '_state' type 628 * That the pointer is right at the start of _tmp_type. 629 */ 630 #define VMSTATE_WITH_TMP(_state, _tmp_type, _vmsd) { \ 631 .name = "tmp", \ 632 .size = sizeof(_tmp_type) + \ 633 QEMU_BUILD_BUG_ON_ZERO(offsetof(_tmp_type, parent) != 0) + \ 634 type_check_pointer(_state, \ 635 typeof_field(_tmp_type, parent)), \ 636 .vmsd = &(_vmsd), \ 637 .info = &vmstate_info_tmp, \ 638 } 639 640 #define VMSTATE_UNUSED_BUFFER(_test, _version, _size) { \ 641 .name = "unused", \ 642 .field_exists = (_test), \ 643 .version_id = (_version), \ 644 .size = (_size), \ 645 .info = &vmstate_info_unused_buffer, \ 646 .flags = VMS_BUFFER, \ 647 } 648 649 /* Discard size * field_num bytes, where field_num is a uint32 member */ 650 #define VMSTATE_UNUSED_VARRAY_UINT32(_state, _test, _version, _field_num, _size) {\ 651 .name = "unused", \ 652 .field_exists = (_test), \ 653 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\ 654 .version_id = (_version), \ 655 .size = (_size), \ 656 .info = &vmstate_info_unused_buffer, \ 657 .flags = VMS_VARRAY_UINT32 | VMS_BUFFER, \ 658 } 659 660 /* _field_size should be a int32_t field in the _state struct giving the 661 * size of the bitmap _field in bits. 662 */ 663 #define VMSTATE_BITMAP(_field, _state, _version, _field_size) { \ 664 .name = (stringify(_field)), \ 665 .version_id = (_version), \ 666 .size_offset = vmstate_offset_value(_state, _field_size, int32_t),\ 667 .info = &vmstate_info_bitmap, \ 668 .flags = VMS_VBUFFER|VMS_POINTER, \ 669 .offset = offsetof(_state, _field), \ 670 } 671 672 /* For migrating a QTAILQ. 673 * Target QTAILQ needs be properly initialized. 674 * _type: type of QTAILQ element 675 * _next: name of QTAILQ entry field in QTAILQ element 676 * _vmsd: VMSD for QTAILQ element 677 * size: size of QTAILQ element 678 * start: offset of QTAILQ entry in QTAILQ element 679 */ 680 #define VMSTATE_QTAILQ_V(_field, _state, _version, _vmsd, _type, _next) \ 681 { \ 682 .name = (stringify(_field)), \ 683 .version_id = (_version), \ 684 .vmsd = &(_vmsd), \ 685 .size = sizeof(_type), \ 686 .info = &vmstate_info_qtailq, \ 687 .offset = offsetof(_state, _field), \ 688 .start = offsetof(_type, _next), \ 689 } 690 691 /* _f : field name 692 _f_n : num of elements field_name 693 _n : num of elements 694 _s : struct state name 695 _v : version 696 */ 697 698 #define VMSTATE_SINGLE(_field, _state, _version, _info, _type) \ 699 VMSTATE_SINGLE_TEST(_field, _state, NULL, _version, _info, _type) 700 701 #define VMSTATE_STRUCT(_field, _state, _version, _vmsd, _type) \ 702 VMSTATE_STRUCT_TEST(_field, _state, NULL, _version, _vmsd, _type) 703 704 #define VMSTATE_STRUCT_POINTER(_field, _state, _vmsd, _type) \ 705 VMSTATE_STRUCT_POINTER_V(_field, _state, 0, _vmsd, _type) 706 707 #define VMSTATE_STRUCT_POINTER_TEST(_field, _state, _test, _vmsd, _type) \ 708 VMSTATE_STRUCT_POINTER_TEST_V(_field, _state, _test, 0, _vmsd, _type) 709 710 #define VMSTATE_STRUCT_ARRAY(_field, _state, _num, _version, _vmsd, _type) \ 711 VMSTATE_STRUCT_ARRAY_TEST(_field, _state, _num, NULL, _version, \ 712 _vmsd, _type) 713 714 #define VMSTATE_STRUCT_2DARRAY(_field, _state, _n1, _n2, _version, \ 715 _vmsd, _type) \ 716 VMSTATE_STRUCT_2DARRAY_TEST(_field, _state, _n1, _n2, NULL, \ 717 _version, _vmsd, _type) 718 719 #define VMSTATE_BUFFER_UNSAFE_INFO(_field, _state, _version, _info, _size) \ 720 VMSTATE_BUFFER_UNSAFE_INFO_TEST(_field, _state, NULL, _version, _info, \ 721 _size) 722 723 #define VMSTATE_BOOL_V(_f, _s, _v) \ 724 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_bool, bool) 725 726 #define VMSTATE_INT8_V(_f, _s, _v) \ 727 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int8, int8_t) 728 #define VMSTATE_INT16_V(_f, _s, _v) \ 729 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int16, int16_t) 730 #define VMSTATE_INT32_V(_f, _s, _v) \ 731 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int32, int32_t) 732 #define VMSTATE_INT64_V(_f, _s, _v) \ 733 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int64, int64_t) 734 735 #define VMSTATE_UINT8_V(_f, _s, _v) \ 736 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint8, uint8_t) 737 #define VMSTATE_UINT16_V(_f, _s, _v) \ 738 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint16, uint16_t) 739 #define VMSTATE_UINT32_V(_f, _s, _v) \ 740 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint32, uint32_t) 741 #define VMSTATE_UINT64_V(_f, _s, _v) \ 742 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint64, uint64_t) 743 744 #define VMSTATE_BOOL(_f, _s) \ 745 VMSTATE_BOOL_V(_f, _s, 0) 746 747 #define VMSTATE_INT8(_f, _s) \ 748 VMSTATE_INT8_V(_f, _s, 0) 749 #define VMSTATE_INT16(_f, _s) \ 750 VMSTATE_INT16_V(_f, _s, 0) 751 #define VMSTATE_INT32(_f, _s) \ 752 VMSTATE_INT32_V(_f, _s, 0) 753 #define VMSTATE_INT64(_f, _s) \ 754 VMSTATE_INT64_V(_f, _s, 0) 755 756 #define VMSTATE_UINT8(_f, _s) \ 757 VMSTATE_UINT8_V(_f, _s, 0) 758 #define VMSTATE_UINT16(_f, _s) \ 759 VMSTATE_UINT16_V(_f, _s, 0) 760 #define VMSTATE_UINT32(_f, _s) \ 761 VMSTATE_UINT32_V(_f, _s, 0) 762 #define VMSTATE_UINT64(_f, _s) \ 763 VMSTATE_UINT64_V(_f, _s, 0) 764 765 #define VMSTATE_UINT8_EQUAL(_f, _s) \ 766 VMSTATE_SINGLE(_f, _s, 0, vmstate_info_uint8_equal, uint8_t) 767 768 #define VMSTATE_UINT16_EQUAL(_f, _s) \ 769 VMSTATE_SINGLE(_f, _s, 0, vmstate_info_uint16_equal, uint16_t) 770 771 #define VMSTATE_UINT16_EQUAL_V(_f, _s, _v) \ 772 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint16_equal, uint16_t) 773 774 #define VMSTATE_INT32_EQUAL(_f, _s) \ 775 VMSTATE_SINGLE(_f, _s, 0, vmstate_info_int32_equal, int32_t) 776 777 #define VMSTATE_UINT32_EQUAL_V(_f, _s, _v) \ 778 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint32_equal, uint32_t) 779 780 #define VMSTATE_UINT32_EQUAL(_f, _s) \ 781 VMSTATE_UINT32_EQUAL_V(_f, _s, 0) 782 783 #define VMSTATE_UINT64_EQUAL_V(_f, _s, _v) \ 784 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint64_equal, uint64_t) 785 786 #define VMSTATE_UINT64_EQUAL(_f, _s) \ 787 VMSTATE_UINT64_EQUAL_V(_f, _s, 0) 788 789 #define VMSTATE_INT32_POSITIVE_LE(_f, _s) \ 790 VMSTATE_SINGLE(_f, _s, 0, vmstate_info_int32_le, int32_t) 791 792 #define VMSTATE_INT8_TEST(_f, _s, _t) \ 793 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_int8, int8_t) 794 795 #define VMSTATE_INT16_TEST(_f, _s, _t) \ 796 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_int16, int16_t) 797 798 #define VMSTATE_INT32_TEST(_f, _s, _t) \ 799 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_int32, int32_t) 800 801 #define VMSTATE_INT64_TEST(_f, _s, _t) \ 802 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_int64, int64_t) 803 804 #define VMSTATE_UINT8_TEST(_f, _s, _t) \ 805 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint8, uint8_t) 806 807 #define VMSTATE_UINT16_TEST(_f, _s, _t) \ 808 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint16, uint16_t) 809 810 #define VMSTATE_UINT32_TEST(_f, _s, _t) \ 811 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint32, uint32_t) 812 813 #define VMSTATE_UINT64_TEST(_f, _s, _t) \ 814 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint64, uint64_t) 815 816 817 #define VMSTATE_FLOAT64_V(_f, _s, _v) \ 818 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_float64, float64) 819 820 #define VMSTATE_FLOAT64(_f, _s) \ 821 VMSTATE_FLOAT64_V(_f, _s, 0) 822 823 #define VMSTATE_TIMER_PTR_TEST(_f, _s, _test) \ 824 VMSTATE_POINTER_TEST(_f, _s, _test, vmstate_info_timer, QEMUTimer *) 825 826 #define VMSTATE_TIMER_PTR_V(_f, _s, _v) \ 827 VMSTATE_POINTER(_f, _s, _v, vmstate_info_timer, QEMUTimer *) 828 829 #define VMSTATE_TIMER_PTR(_f, _s) \ 830 VMSTATE_TIMER_PTR_V(_f, _s, 0) 831 832 #define VMSTATE_TIMER_PTR_ARRAY(_f, _s, _n) \ 833 VMSTATE_ARRAY_OF_POINTER(_f, _s, _n, 0, vmstate_info_timer, QEMUTimer *) 834 835 #define VMSTATE_TIMER_TEST(_f, _s, _test) \ 836 VMSTATE_SINGLE_TEST(_f, _s, _test, 0, vmstate_info_timer, QEMUTimer) 837 838 #define VMSTATE_TIMER_V(_f, _s, _v) \ 839 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_timer, QEMUTimer) 840 841 #define VMSTATE_TIMER(_f, _s) \ 842 VMSTATE_TIMER_V(_f, _s, 0) 843 844 #define VMSTATE_TIMER_ARRAY(_f, _s, _n) \ 845 VMSTATE_ARRAY(_f, _s, _n, 0, vmstate_info_timer, QEMUTimer) 846 847 #define VMSTATE_BOOL_ARRAY_V(_f, _s, _n, _v) \ 848 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_bool, bool) 849 850 #define VMSTATE_BOOL_ARRAY(_f, _s, _n) \ 851 VMSTATE_BOOL_ARRAY_V(_f, _s, _n, 0) 852 853 #define VMSTATE_UINT16_ARRAY_V(_f, _s, _n, _v) \ 854 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint16, uint16_t) 855 856 #define VMSTATE_UINT16_2DARRAY_V(_f, _s, _n1, _n2, _v) \ 857 VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint16, uint16_t) 858 859 #define VMSTATE_UINT16_ARRAY(_f, _s, _n) \ 860 VMSTATE_UINT16_ARRAY_V(_f, _s, _n, 0) 861 862 #define VMSTATE_UINT16_2DARRAY(_f, _s, _n1, _n2) \ 863 VMSTATE_UINT16_2DARRAY_V(_f, _s, _n1, _n2, 0) 864 865 #define VMSTATE_UINT8_2DARRAY_V(_f, _s, _n1, _n2, _v) \ 866 VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint8, uint8_t) 867 868 #define VMSTATE_UINT8_ARRAY_V(_f, _s, _n, _v) \ 869 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint8, uint8_t) 870 871 #define VMSTATE_UINT8_ARRAY(_f, _s, _n) \ 872 VMSTATE_UINT8_ARRAY_V(_f, _s, _n, 0) 873 874 #define VMSTATE_UINT8_SUB_ARRAY(_f, _s, _start, _num) \ 875 VMSTATE_SUB_ARRAY(_f, _s, _start, _num, 0, vmstate_info_uint8, uint8_t) 876 877 #define VMSTATE_UINT8_2DARRAY(_f, _s, _n1, _n2) \ 878 VMSTATE_UINT8_2DARRAY_V(_f, _s, _n1, _n2, 0) 879 880 #define VMSTATE_UINT32_ARRAY_V(_f, _s, _n, _v) \ 881 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint32, uint32_t) 882 883 #define VMSTATE_UINT32_2DARRAY_V(_f, _s, _n1, _n2, _v) \ 884 VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint32, uint32_t) 885 886 #define VMSTATE_UINT32_ARRAY(_f, _s, _n) \ 887 VMSTATE_UINT32_ARRAY_V(_f, _s, _n, 0) 888 889 #define VMSTATE_UINT32_2DARRAY(_f, _s, _n1, _n2) \ 890 VMSTATE_UINT32_2DARRAY_V(_f, _s, _n1, _n2, 0) 891 892 #define VMSTATE_UINT64_ARRAY_V(_f, _s, _n, _v) \ 893 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint64, uint64_t) 894 895 #define VMSTATE_UINT64_ARRAY(_f, _s, _n) \ 896 VMSTATE_UINT64_ARRAY_V(_f, _s, _n, 0) 897 898 #define VMSTATE_UINT64_2DARRAY(_f, _s, _n1, _n2) \ 899 VMSTATE_UINT64_2DARRAY_V(_f, _s, _n1, _n2, 0) 900 901 #define VMSTATE_UINT64_2DARRAY_V(_f, _s, _n1, _n2, _v) \ 902 VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint64, uint64_t) 903 904 #define VMSTATE_INT16_ARRAY_V(_f, _s, _n, _v) \ 905 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int16, int16_t) 906 907 #define VMSTATE_INT16_ARRAY(_f, _s, _n) \ 908 VMSTATE_INT16_ARRAY_V(_f, _s, _n, 0) 909 910 #define VMSTATE_INT32_ARRAY_V(_f, _s, _n, _v) \ 911 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int32, int32_t) 912 913 #define VMSTATE_INT32_ARRAY(_f, _s, _n) \ 914 VMSTATE_INT32_ARRAY_V(_f, _s, _n, 0) 915 916 #define VMSTATE_UINT32_SUB_ARRAY(_f, _s, _start, _num) \ 917 VMSTATE_SUB_ARRAY(_f, _s, _start, _num, 0, vmstate_info_uint32, uint32_t) 918 919 #define VMSTATE_INT64_ARRAY_V(_f, _s, _n, _v) \ 920 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int64, int64_t) 921 922 #define VMSTATE_INT64_ARRAY(_f, _s, _n) \ 923 VMSTATE_INT64_ARRAY_V(_f, _s, _n, 0) 924 925 #define VMSTATE_FLOAT64_ARRAY_V(_f, _s, _n, _v) \ 926 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_float64, float64) 927 928 #define VMSTATE_FLOAT64_ARRAY(_f, _s, _n) \ 929 VMSTATE_FLOAT64_ARRAY_V(_f, _s, _n, 0) 930 931 #define VMSTATE_CPUDOUBLE_ARRAY_V(_f, _s, _n, _v) \ 932 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_cpudouble, CPU_DoubleU) 933 934 #define VMSTATE_CPUDOUBLE_ARRAY(_f, _s, _n) \ 935 VMSTATE_CPUDOUBLE_ARRAY_V(_f, _s, _n, 0) 936 937 #define VMSTATE_BUFFER_V(_f, _s, _v) \ 938 VMSTATE_STATIC_BUFFER(_f, _s, _v, NULL, 0, sizeof(typeof_field(_s, _f))) 939 940 #define VMSTATE_BUFFER(_f, _s) \ 941 VMSTATE_BUFFER_V(_f, _s, 0) 942 943 #define VMSTATE_PARTIAL_BUFFER(_f, _s, _size) \ 944 VMSTATE_STATIC_BUFFER(_f, _s, 0, NULL, 0, _size) 945 946 #define VMSTATE_BUFFER_START_MIDDLE_V(_f, _s, _start, _v) \ 947 VMSTATE_STATIC_BUFFER(_f, _s, _v, NULL, _start, sizeof(typeof_field(_s, _f))) 948 949 #define VMSTATE_BUFFER_START_MIDDLE(_f, _s, _start) \ 950 VMSTATE_BUFFER_START_MIDDLE_V(_f, _s, _start, 0) 951 952 #define VMSTATE_PARTIAL_VBUFFER(_f, _s, _size) \ 953 VMSTATE_VBUFFER(_f, _s, 0, NULL, _size) 954 955 #define VMSTATE_PARTIAL_VBUFFER_UINT32(_f, _s, _size) \ 956 VMSTATE_VBUFFER_UINT32(_f, _s, 0, NULL, _size) 957 958 #define VMSTATE_BUFFER_TEST(_f, _s, _test) \ 959 VMSTATE_STATIC_BUFFER(_f, _s, 0, _test, 0, sizeof(typeof_field(_s, _f))) 960 961 #define VMSTATE_BUFFER_UNSAFE(_field, _state, _version, _size) \ 962 VMSTATE_BUFFER_UNSAFE_INFO(_field, _state, _version, vmstate_info_buffer, _size) 963 964 #define VMSTATE_UNUSED_V(_v, _size) \ 965 VMSTATE_UNUSED_BUFFER(NULL, _v, _size) 966 967 #define VMSTATE_UNUSED(_size) \ 968 VMSTATE_UNUSED_V(0, _size) 969 970 #define VMSTATE_UNUSED_TEST(_test, _size) \ 971 VMSTATE_UNUSED_BUFFER(_test, 0, _size) 972 973 #define VMSTATE_END_OF_LIST() \ 974 {} 975 976 int vmstate_load_state(QEMUFile *f, const VMStateDescription *vmsd, 977 void *opaque, int version_id); 978 void vmstate_save_state(QEMUFile *f, const VMStateDescription *vmsd, 979 void *opaque, QJSON *vmdesc); 980 981 bool vmstate_save_needed(const VMStateDescription *vmsd, void *opaque); 982 983 /* Returns: 0 on success, -1 on failure */ 984 int vmstate_register_with_alias_id(DeviceState *dev, int instance_id, 985 const VMStateDescription *vmsd, 986 void *base, int alias_id, 987 int required_for_version, 988 Error **errp); 989 990 /* Returns: 0 on success, -1 on failure */ 991 static inline int vmstate_register(DeviceState *dev, int instance_id, 992 const VMStateDescription *vmsd, 993 void *opaque) 994 { 995 return vmstate_register_with_alias_id(dev, instance_id, vmsd, 996 opaque, -1, 0, NULL); 997 } 998 999 void vmstate_unregister(DeviceState *dev, const VMStateDescription *vmsd, 1000 void *opaque); 1001 1002 struct MemoryRegion; 1003 void vmstate_register_ram(struct MemoryRegion *memory, DeviceState *dev); 1004 void vmstate_unregister_ram(struct MemoryRegion *memory, DeviceState *dev); 1005 void vmstate_register_ram_global(struct MemoryRegion *memory); 1006 1007 bool vmstate_check_only_migratable(const VMStateDescription *vmsd); 1008 1009 #endif 1010