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_PCI_BUS, /* Must happen before IOMMU */ 152 MIG_PRI_GICV3_ITS, /* Must happen before PCI devices */ 153 MIG_PRI_GICV3, /* Must happen before the ITS */ 154 MIG_PRI_MAX, 155 } MigrationPriority; 156 157 struct VMStateField { 158 const char *name; 159 const char *err_hint; 160 size_t offset; 161 size_t size; 162 size_t start; 163 int num; 164 size_t num_offset; 165 size_t size_offset; 166 const VMStateInfo *info; 167 enum VMStateFlags flags; 168 const VMStateDescription *vmsd; 169 int version_id; 170 bool (*field_exists)(void *opaque, int version_id); 171 }; 172 173 struct VMStateDescription { 174 const char *name; 175 int unmigratable; 176 int version_id; 177 int minimum_version_id; 178 int minimum_version_id_old; 179 MigrationPriority priority; 180 LoadStateHandler *load_state_old; 181 int (*pre_load)(void *opaque); 182 int (*post_load)(void *opaque, int version_id); 183 int (*pre_save)(void *opaque); 184 bool (*needed)(void *opaque); 185 VMStateField *fields; 186 const VMStateDescription **subsections; 187 }; 188 189 extern const VMStateDescription vmstate_dummy; 190 191 extern const VMStateInfo vmstate_info_bool; 192 193 extern const VMStateInfo vmstate_info_int8; 194 extern const VMStateInfo vmstate_info_int16; 195 extern const VMStateInfo vmstate_info_int32; 196 extern const VMStateInfo vmstate_info_int64; 197 198 extern const VMStateInfo vmstate_info_uint8_equal; 199 extern const VMStateInfo vmstate_info_uint16_equal; 200 extern const VMStateInfo vmstate_info_int32_equal; 201 extern const VMStateInfo vmstate_info_uint32_equal; 202 extern const VMStateInfo vmstate_info_uint64_equal; 203 extern const VMStateInfo vmstate_info_int32_le; 204 205 extern const VMStateInfo vmstate_info_uint8; 206 extern const VMStateInfo vmstate_info_uint16; 207 extern const VMStateInfo vmstate_info_uint32; 208 extern const VMStateInfo vmstate_info_uint64; 209 210 /** Put this in the stream when migrating a null pointer.*/ 211 #define VMS_NULLPTR_MARKER (0x30U) /* '0' */ 212 extern const VMStateInfo vmstate_info_nullptr; 213 214 extern const VMStateInfo vmstate_info_float64; 215 extern const VMStateInfo vmstate_info_cpudouble; 216 217 extern const VMStateInfo vmstate_info_timer; 218 extern const VMStateInfo vmstate_info_buffer; 219 extern const VMStateInfo vmstate_info_unused_buffer; 220 extern const VMStateInfo vmstate_info_tmp; 221 extern const VMStateInfo vmstate_info_bitmap; 222 extern const VMStateInfo vmstate_info_qtailq; 223 224 #define type_check_2darray(t1,t2,n,m) ((t1(*)[n][m])0 - (t2*)0) 225 #define type_check_array(t1,t2,n) ((t1(*)[n])0 - (t2*)0) 226 #define type_check_pointer(t1,t2) ((t1**)0 - (t2*)0) 227 228 #define vmstate_offset_value(_state, _field, _type) \ 229 (offsetof(_state, _field) + \ 230 type_check(_type, typeof_field(_state, _field))) 231 232 #define vmstate_offset_pointer(_state, _field, _type) \ 233 (offsetof(_state, _field) + \ 234 type_check_pointer(_type, typeof_field(_state, _field))) 235 236 #define vmstate_offset_array(_state, _field, _type, _num) \ 237 (offsetof(_state, _field) + \ 238 type_check_array(_type, typeof_field(_state, _field), _num)) 239 240 #define vmstate_offset_2darray(_state, _field, _type, _n1, _n2) \ 241 (offsetof(_state, _field) + \ 242 type_check_2darray(_type, typeof_field(_state, _field), _n1, _n2)) 243 244 #define vmstate_offset_sub_array(_state, _field, _type, _start) \ 245 vmstate_offset_value(_state, _field[_start], _type) 246 247 #define vmstate_offset_buffer(_state, _field) \ 248 vmstate_offset_array(_state, _field, uint8_t, \ 249 sizeof(typeof_field(_state, _field))) 250 251 #define VMSTATE_SINGLE_TEST(_field, _state, _test, _version, _info, _type) { \ 252 .name = (stringify(_field)), \ 253 .version_id = (_version), \ 254 .field_exists = (_test), \ 255 .size = sizeof(_type), \ 256 .info = &(_info), \ 257 .flags = VMS_SINGLE, \ 258 .offset = vmstate_offset_value(_state, _field, _type), \ 259 } 260 261 #define VMSTATE_SINGLE_FULL(_field, _state, _test, _version, _info, \ 262 _type, _err_hint) { \ 263 .name = (stringify(_field)), \ 264 .err_hint = (_err_hint), \ 265 .version_id = (_version), \ 266 .field_exists = (_test), \ 267 .size = sizeof(_type), \ 268 .info = &(_info), \ 269 .flags = VMS_SINGLE, \ 270 .offset = vmstate_offset_value(_state, _field, _type), \ 271 } 272 273 /* Validate state using a boolean predicate. */ 274 #define VMSTATE_VALIDATE(_name, _test) { \ 275 .name = (_name), \ 276 .field_exists = (_test), \ 277 .flags = VMS_ARRAY | VMS_MUST_EXIST, \ 278 .num = 0, /* 0 elements: no data, only run _test */ \ 279 } 280 281 #define VMSTATE_POINTER(_field, _state, _version, _info, _type) { \ 282 .name = (stringify(_field)), \ 283 .version_id = (_version), \ 284 .info = &(_info), \ 285 .size = sizeof(_type), \ 286 .flags = VMS_SINGLE|VMS_POINTER, \ 287 .offset = vmstate_offset_value(_state, _field, _type), \ 288 } 289 290 #define VMSTATE_POINTER_TEST(_field, _state, _test, _info, _type) { \ 291 .name = (stringify(_field)), \ 292 .info = &(_info), \ 293 .field_exists = (_test), \ 294 .size = sizeof(_type), \ 295 .flags = VMS_SINGLE|VMS_POINTER, \ 296 .offset = vmstate_offset_value(_state, _field, _type), \ 297 } 298 299 #define VMSTATE_ARRAY(_field, _state, _num, _version, _info, _type) {\ 300 .name = (stringify(_field)), \ 301 .version_id = (_version), \ 302 .num = (_num), \ 303 .info = &(_info), \ 304 .size = sizeof(_type), \ 305 .flags = VMS_ARRAY, \ 306 .offset = vmstate_offset_array(_state, _field, _type, _num), \ 307 } 308 309 #define VMSTATE_2DARRAY(_field, _state, _n1, _n2, _version, _info, _type) { \ 310 .name = (stringify(_field)), \ 311 .version_id = (_version), \ 312 .num = (_n1) * (_n2), \ 313 .info = &(_info), \ 314 .size = sizeof(_type), \ 315 .flags = VMS_ARRAY, \ 316 .offset = vmstate_offset_2darray(_state, _field, _type, _n1, _n2), \ 317 } 318 319 #define VMSTATE_VARRAY_MULTIPLY(_field, _state, _field_num, _multiply, _info, _type) { \ 320 .name = (stringify(_field)), \ 321 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\ 322 .num = (_multiply), \ 323 .info = &(_info), \ 324 .size = sizeof(_type), \ 325 .flags = VMS_VARRAY_UINT32|VMS_MULTIPLY_ELEMENTS, \ 326 .offset = offsetof(_state, _field), \ 327 } 328 329 #define VMSTATE_ARRAY_TEST(_field, _state, _num, _test, _info, _type) {\ 330 .name = (stringify(_field)), \ 331 .field_exists = (_test), \ 332 .num = (_num), \ 333 .info = &(_info), \ 334 .size = sizeof(_type), \ 335 .flags = VMS_ARRAY, \ 336 .offset = vmstate_offset_array(_state, _field, _type, _num),\ 337 } 338 339 #define VMSTATE_SUB_ARRAY(_field, _state, _start, _num, _version, _info, _type) { \ 340 .name = (stringify(_field)), \ 341 .version_id = (_version), \ 342 .num = (_num), \ 343 .info = &(_info), \ 344 .size = sizeof(_type), \ 345 .flags = VMS_ARRAY, \ 346 .offset = vmstate_offset_sub_array(_state, _field, _type, _start), \ 347 } 348 349 #define VMSTATE_ARRAY_INT32_UNSAFE(_field, _state, _field_num, _info, _type) {\ 350 .name = (stringify(_field)), \ 351 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \ 352 .info = &(_info), \ 353 .size = sizeof(_type), \ 354 .flags = VMS_VARRAY_INT32, \ 355 .offset = offsetof(_state, _field), \ 356 } 357 358 #define VMSTATE_VARRAY_INT32(_field, _state, _field_num, _version, _info, _type) {\ 359 .name = (stringify(_field)), \ 360 .version_id = (_version), \ 361 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \ 362 .info = &(_info), \ 363 .size = sizeof(_type), \ 364 .flags = VMS_VARRAY_INT32|VMS_POINTER, \ 365 .offset = vmstate_offset_pointer(_state, _field, _type), \ 366 } 367 368 #define VMSTATE_VARRAY_UINT32(_field, _state, _field_num, _version, _info, _type) {\ 369 .name = (stringify(_field)), \ 370 .version_id = (_version), \ 371 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\ 372 .info = &(_info), \ 373 .size = sizeof(_type), \ 374 .flags = VMS_VARRAY_UINT32|VMS_POINTER, \ 375 .offset = vmstate_offset_pointer(_state, _field, _type), \ 376 } 377 378 #define VMSTATE_VARRAY_UINT32_ALLOC(_field, _state, _field_num, _version, _info, _type) {\ 379 .name = (stringify(_field)), \ 380 .version_id = (_version), \ 381 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\ 382 .info = &(_info), \ 383 .size = sizeof(_type), \ 384 .flags = VMS_VARRAY_UINT32|VMS_POINTER|VMS_ALLOC, \ 385 .offset = vmstate_offset_pointer(_state, _field, _type), \ 386 } 387 388 #define VMSTATE_VARRAY_UINT16_UNSAFE(_field, _state, _field_num, _version, _info, _type) {\ 389 .name = (stringify(_field)), \ 390 .version_id = (_version), \ 391 .num_offset = vmstate_offset_value(_state, _field_num, uint16_t),\ 392 .info = &(_info), \ 393 .size = sizeof(_type), \ 394 .flags = VMS_VARRAY_UINT16, \ 395 .offset = offsetof(_state, _field), \ 396 } 397 398 #define VMSTATE_STRUCT_TEST(_field, _state, _test, _version, _vmsd, _type) { \ 399 .name = (stringify(_field)), \ 400 .version_id = (_version), \ 401 .field_exists = (_test), \ 402 .vmsd = &(_vmsd), \ 403 .size = sizeof(_type), \ 404 .flags = VMS_STRUCT, \ 405 .offset = vmstate_offset_value(_state, _field, _type), \ 406 } 407 408 #define VMSTATE_STRUCT_POINTER_V(_field, _state, _version, _vmsd, _type) { \ 409 .name = (stringify(_field)), \ 410 .version_id = (_version), \ 411 .vmsd = &(_vmsd), \ 412 .size = sizeof(_type *), \ 413 .flags = VMS_STRUCT|VMS_POINTER, \ 414 .offset = vmstate_offset_pointer(_state, _field, _type), \ 415 } 416 417 #define VMSTATE_STRUCT_POINTER_TEST_V(_field, _state, _test, _version, _vmsd, _type) { \ 418 .name = (stringify(_field)), \ 419 .version_id = (_version), \ 420 .field_exists = (_test), \ 421 .vmsd = &(_vmsd), \ 422 .size = sizeof(_type *), \ 423 .flags = VMS_STRUCT|VMS_POINTER, \ 424 .offset = vmstate_offset_pointer(_state, _field, _type), \ 425 } 426 427 #define VMSTATE_ARRAY_OF_POINTER(_field, _state, _num, _version, _info, _type) {\ 428 .name = (stringify(_field)), \ 429 .version_id = (_version), \ 430 .num = (_num), \ 431 .info = &(_info), \ 432 .size = sizeof(_type), \ 433 .flags = VMS_ARRAY|VMS_ARRAY_OF_POINTER, \ 434 .offset = vmstate_offset_array(_state, _field, _type, _num), \ 435 } 436 437 #define VMSTATE_ARRAY_OF_POINTER_TO_STRUCT(_f, _s, _n, _v, _vmsd, _type) { \ 438 .name = (stringify(_f)), \ 439 .version_id = (_v), \ 440 .num = (_n), \ 441 .vmsd = &(_vmsd), \ 442 .size = sizeof(_type *), \ 443 .flags = VMS_ARRAY|VMS_STRUCT|VMS_ARRAY_OF_POINTER, \ 444 .offset = vmstate_offset_array(_s, _f, _type*, _n), \ 445 } 446 447 #define VMSTATE_STRUCT_SUB_ARRAY(_field, _state, _start, _num, _version, _vmsd, _type) { \ 448 .name = (stringify(_field)), \ 449 .version_id = (_version), \ 450 .num = (_num), \ 451 .vmsd = &(_vmsd), \ 452 .size = sizeof(_type), \ 453 .flags = VMS_STRUCT|VMS_ARRAY, \ 454 .offset = vmstate_offset_sub_array(_state, _field, _type, _start), \ 455 } 456 457 #define VMSTATE_STRUCT_ARRAY_TEST(_field, _state, _num, _test, _version, _vmsd, _type) { \ 458 .name = (stringify(_field)), \ 459 .num = (_num), \ 460 .field_exists = (_test), \ 461 .version_id = (_version), \ 462 .vmsd = &(_vmsd), \ 463 .size = sizeof(_type), \ 464 .flags = VMS_STRUCT|VMS_ARRAY, \ 465 .offset = vmstate_offset_array(_state, _field, _type, _num),\ 466 } 467 468 #define VMSTATE_STRUCT_2DARRAY_TEST(_field, _state, _n1, _n2, _test, \ 469 _version, _vmsd, _type) { \ 470 .name = (stringify(_field)), \ 471 .num = (_n1) * (_n2), \ 472 .field_exists = (_test), \ 473 .version_id = (_version), \ 474 .vmsd = &(_vmsd), \ 475 .size = sizeof(_type), \ 476 .flags = VMS_STRUCT | VMS_ARRAY, \ 477 .offset = vmstate_offset_2darray(_state, _field, _type, \ 478 _n1, _n2), \ 479 } 480 481 #define VMSTATE_STRUCT_VARRAY_UINT8(_field, _state, _field_num, _version, _vmsd, _type) { \ 482 .name = (stringify(_field)), \ 483 .num_offset = vmstate_offset_value(_state, _field_num, uint8_t), \ 484 .version_id = (_version), \ 485 .vmsd = &(_vmsd), \ 486 .size = sizeof(_type), \ 487 .flags = VMS_STRUCT|VMS_VARRAY_UINT8, \ 488 .offset = offsetof(_state, _field), \ 489 } 490 491 /* a variable length array (i.e. _type *_field) but we know the 492 * length 493 */ 494 #define VMSTATE_STRUCT_VARRAY_POINTER_KNOWN(_field, _state, _num, _version, _vmsd, _type) { \ 495 .name = (stringify(_field)), \ 496 .num = (_num), \ 497 .version_id = (_version), \ 498 .vmsd = &(_vmsd), \ 499 .size = sizeof(_type), \ 500 .flags = VMS_STRUCT|VMS_ARRAY|VMS_POINTER, \ 501 .offset = offsetof(_state, _field), \ 502 } 503 504 #define VMSTATE_STRUCT_VARRAY_POINTER_INT32(_field, _state, _field_num, _vmsd, _type) { \ 505 .name = (stringify(_field)), \ 506 .version_id = 0, \ 507 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \ 508 .size = sizeof(_type), \ 509 .vmsd = &(_vmsd), \ 510 .flags = VMS_POINTER | VMS_VARRAY_INT32 | VMS_STRUCT, \ 511 .offset = vmstate_offset_pointer(_state, _field, _type), \ 512 } 513 514 #define VMSTATE_STRUCT_VARRAY_POINTER_UINT32(_field, _state, _field_num, _vmsd, _type) { \ 515 .name = (stringify(_field)), \ 516 .version_id = 0, \ 517 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\ 518 .size = sizeof(_type), \ 519 .vmsd = &(_vmsd), \ 520 .flags = VMS_POINTER | VMS_VARRAY_INT32 | VMS_STRUCT, \ 521 .offset = vmstate_offset_pointer(_state, _field, _type), \ 522 } 523 524 #define VMSTATE_STRUCT_VARRAY_POINTER_UINT16(_field, _state, _field_num, _vmsd, _type) { \ 525 .name = (stringify(_field)), \ 526 .version_id = 0, \ 527 .num_offset = vmstate_offset_value(_state, _field_num, uint16_t),\ 528 .size = sizeof(_type), \ 529 .vmsd = &(_vmsd), \ 530 .flags = VMS_POINTER | VMS_VARRAY_UINT16 | VMS_STRUCT, \ 531 .offset = vmstate_offset_pointer(_state, _field, _type), \ 532 } 533 534 #define VMSTATE_STRUCT_VARRAY_INT32(_field, _state, _field_num, _version, _vmsd, _type) { \ 535 .name = (stringify(_field)), \ 536 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \ 537 .version_id = (_version), \ 538 .vmsd = &(_vmsd), \ 539 .size = sizeof(_type), \ 540 .flags = VMS_STRUCT|VMS_VARRAY_INT32, \ 541 .offset = offsetof(_state, _field), \ 542 } 543 544 #define VMSTATE_STRUCT_VARRAY_UINT32(_field, _state, _field_num, _version, _vmsd, _type) { \ 545 .name = (stringify(_field)), \ 546 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t), \ 547 .version_id = (_version), \ 548 .vmsd = &(_vmsd), \ 549 .size = sizeof(_type), \ 550 .flags = VMS_STRUCT|VMS_VARRAY_UINT32, \ 551 .offset = offsetof(_state, _field), \ 552 } 553 554 #define VMSTATE_STRUCT_VARRAY_ALLOC(_field, _state, _field_num, _version, _vmsd, _type) {\ 555 .name = (stringify(_field)), \ 556 .version_id = (_version), \ 557 .vmsd = &(_vmsd), \ 558 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \ 559 .size = sizeof(_type), \ 560 .flags = VMS_STRUCT|VMS_VARRAY_INT32|VMS_ALLOC|VMS_POINTER, \ 561 .offset = vmstate_offset_pointer(_state, _field, _type), \ 562 } 563 564 #define VMSTATE_STATIC_BUFFER(_field, _state, _version, _test, _start, _size) { \ 565 .name = (stringify(_field)), \ 566 .version_id = (_version), \ 567 .field_exists = (_test), \ 568 .size = (_size - _start), \ 569 .info = &vmstate_info_buffer, \ 570 .flags = VMS_BUFFER, \ 571 .offset = vmstate_offset_buffer(_state, _field) + _start, \ 572 } 573 574 #define VMSTATE_VBUFFER_MULTIPLY(_field, _state, _version, _test, \ 575 _field_size, _multiply) { \ 576 .name = (stringify(_field)), \ 577 .version_id = (_version), \ 578 .field_exists = (_test), \ 579 .size_offset = vmstate_offset_value(_state, _field_size, uint32_t),\ 580 .size = (_multiply), \ 581 .info = &vmstate_info_buffer, \ 582 .flags = VMS_VBUFFER|VMS_POINTER|VMS_MULTIPLY, \ 583 .offset = offsetof(_state, _field), \ 584 } 585 586 #define VMSTATE_VBUFFER(_field, _state, _version, _test, _field_size) { \ 587 .name = (stringify(_field)), \ 588 .version_id = (_version), \ 589 .field_exists = (_test), \ 590 .size_offset = vmstate_offset_value(_state, _field_size, int32_t),\ 591 .info = &vmstate_info_buffer, \ 592 .flags = VMS_VBUFFER|VMS_POINTER, \ 593 .offset = offsetof(_state, _field), \ 594 } 595 596 #define VMSTATE_VBUFFER_UINT32(_field, _state, _version, _test, _field_size) { \ 597 .name = (stringify(_field)), \ 598 .version_id = (_version), \ 599 .field_exists = (_test), \ 600 .size_offset = vmstate_offset_value(_state, _field_size, uint32_t),\ 601 .info = &vmstate_info_buffer, \ 602 .flags = VMS_VBUFFER|VMS_POINTER, \ 603 .offset = offsetof(_state, _field), \ 604 } 605 606 #define VMSTATE_VBUFFER_ALLOC_UINT32(_field, _state, _version, \ 607 _test, _field_size) { \ 608 .name = (stringify(_field)), \ 609 .version_id = (_version), \ 610 .field_exists = (_test), \ 611 .size_offset = vmstate_offset_value(_state, _field_size, uint32_t),\ 612 .info = &vmstate_info_buffer, \ 613 .flags = VMS_VBUFFER|VMS_POINTER|VMS_ALLOC, \ 614 .offset = offsetof(_state, _field), \ 615 } 616 617 #define VMSTATE_BUFFER_UNSAFE_INFO_TEST(_field, _state, _test, _version, _info, _size) { \ 618 .name = (stringify(_field)), \ 619 .version_id = (_version), \ 620 .field_exists = (_test), \ 621 .size = (_size), \ 622 .info = &(_info), \ 623 .flags = VMS_BUFFER, \ 624 .offset = offsetof(_state, _field), \ 625 } 626 627 #define VMSTATE_BUFFER_POINTER_UNSAFE(_field, _state, _version, _size) { \ 628 .name = (stringify(_field)), \ 629 .version_id = (_version), \ 630 .size = (_size), \ 631 .info = &vmstate_info_buffer, \ 632 .flags = VMS_BUFFER|VMS_POINTER, \ 633 .offset = offsetof(_state, _field), \ 634 } 635 636 /* Allocate a temporary of type 'tmp_type', set tmp->parent to _state 637 * and execute the vmsd on the temporary. Note that we're working with 638 * the whole of _state here, not a field within it. 639 * We compile time check that: 640 * That _tmp_type contains a 'parent' member that's a pointer to the 641 * '_state' type 642 * That the pointer is right at the start of _tmp_type. 643 */ 644 #define VMSTATE_WITH_TMP(_state, _tmp_type, _vmsd) { \ 645 .name = "tmp", \ 646 .size = sizeof(_tmp_type) + \ 647 QEMU_BUILD_BUG_ON_ZERO(offsetof(_tmp_type, parent) != 0) + \ 648 type_check_pointer(_state, \ 649 typeof_field(_tmp_type, parent)), \ 650 .vmsd = &(_vmsd), \ 651 .info = &vmstate_info_tmp, \ 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 /* Discard size * field_num bytes, where field_num is a uint32 member */ 664 #define VMSTATE_UNUSED_VARRAY_UINT32(_state, _test, _version, _field_num, _size) {\ 665 .name = "unused", \ 666 .field_exists = (_test), \ 667 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\ 668 .version_id = (_version), \ 669 .size = (_size), \ 670 .info = &vmstate_info_unused_buffer, \ 671 .flags = VMS_VARRAY_UINT32 | VMS_BUFFER, \ 672 } 673 674 /* _field_size should be a int32_t field in the _state struct giving the 675 * size of the bitmap _field in bits. 676 */ 677 #define VMSTATE_BITMAP(_field, _state, _version, _field_size) { \ 678 .name = (stringify(_field)), \ 679 .version_id = (_version), \ 680 .size_offset = vmstate_offset_value(_state, _field_size, int32_t),\ 681 .info = &vmstate_info_bitmap, \ 682 .flags = VMS_VBUFFER|VMS_POINTER, \ 683 .offset = offsetof(_state, _field), \ 684 } 685 686 /* For migrating a QTAILQ. 687 * Target QTAILQ needs be properly initialized. 688 * _type: type of QTAILQ element 689 * _next: name of QTAILQ entry field in QTAILQ element 690 * _vmsd: VMSD for QTAILQ element 691 * size: size of QTAILQ element 692 * start: offset of QTAILQ entry in QTAILQ element 693 */ 694 #define VMSTATE_QTAILQ_V(_field, _state, _version, _vmsd, _type, _next) \ 695 { \ 696 .name = (stringify(_field)), \ 697 .version_id = (_version), \ 698 .vmsd = &(_vmsd), \ 699 .size = sizeof(_type), \ 700 .info = &vmstate_info_qtailq, \ 701 .offset = offsetof(_state, _field), \ 702 .start = offsetof(_type, _next), \ 703 } 704 705 /* _f : field name 706 _f_n : num of elements field_name 707 _n : num of elements 708 _s : struct state name 709 _v : version 710 */ 711 712 #define VMSTATE_SINGLE(_field, _state, _version, _info, _type) \ 713 VMSTATE_SINGLE_TEST(_field, _state, NULL, _version, _info, _type) 714 715 #define VMSTATE_STRUCT(_field, _state, _version, _vmsd, _type) \ 716 VMSTATE_STRUCT_TEST(_field, _state, NULL, _version, _vmsd, _type) 717 718 #define VMSTATE_STRUCT_POINTER(_field, _state, _vmsd, _type) \ 719 VMSTATE_STRUCT_POINTER_V(_field, _state, 0, _vmsd, _type) 720 721 #define VMSTATE_STRUCT_POINTER_TEST(_field, _state, _test, _vmsd, _type) \ 722 VMSTATE_STRUCT_POINTER_TEST_V(_field, _state, _test, 0, _vmsd, _type) 723 724 #define VMSTATE_STRUCT_ARRAY(_field, _state, _num, _version, _vmsd, _type) \ 725 VMSTATE_STRUCT_ARRAY_TEST(_field, _state, _num, NULL, _version, \ 726 _vmsd, _type) 727 728 #define VMSTATE_STRUCT_2DARRAY(_field, _state, _n1, _n2, _version, \ 729 _vmsd, _type) \ 730 VMSTATE_STRUCT_2DARRAY_TEST(_field, _state, _n1, _n2, NULL, \ 731 _version, _vmsd, _type) 732 733 #define VMSTATE_BUFFER_UNSAFE_INFO(_field, _state, _version, _info, _size) \ 734 VMSTATE_BUFFER_UNSAFE_INFO_TEST(_field, _state, NULL, _version, _info, \ 735 _size) 736 737 #define VMSTATE_BOOL_V(_f, _s, _v) \ 738 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_bool, bool) 739 740 #define VMSTATE_INT8_V(_f, _s, _v) \ 741 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int8, int8_t) 742 #define VMSTATE_INT16_V(_f, _s, _v) \ 743 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int16, int16_t) 744 #define VMSTATE_INT32_V(_f, _s, _v) \ 745 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int32, int32_t) 746 #define VMSTATE_INT64_V(_f, _s, _v) \ 747 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int64, int64_t) 748 749 #define VMSTATE_UINT8_V(_f, _s, _v) \ 750 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint8, uint8_t) 751 #define VMSTATE_UINT16_V(_f, _s, _v) \ 752 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint16, uint16_t) 753 #define VMSTATE_UINT32_V(_f, _s, _v) \ 754 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint32, uint32_t) 755 #define VMSTATE_UINT64_V(_f, _s, _v) \ 756 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint64, uint64_t) 757 758 #define VMSTATE_BOOL(_f, _s) \ 759 VMSTATE_BOOL_V(_f, _s, 0) 760 761 #define VMSTATE_INT8(_f, _s) \ 762 VMSTATE_INT8_V(_f, _s, 0) 763 #define VMSTATE_INT16(_f, _s) \ 764 VMSTATE_INT16_V(_f, _s, 0) 765 #define VMSTATE_INT32(_f, _s) \ 766 VMSTATE_INT32_V(_f, _s, 0) 767 #define VMSTATE_INT64(_f, _s) \ 768 VMSTATE_INT64_V(_f, _s, 0) 769 770 #define VMSTATE_UINT8(_f, _s) \ 771 VMSTATE_UINT8_V(_f, _s, 0) 772 #define VMSTATE_UINT16(_f, _s) \ 773 VMSTATE_UINT16_V(_f, _s, 0) 774 #define VMSTATE_UINT32(_f, _s) \ 775 VMSTATE_UINT32_V(_f, _s, 0) 776 #define VMSTATE_UINT64(_f, _s) \ 777 VMSTATE_UINT64_V(_f, _s, 0) 778 779 #define VMSTATE_UINT8_EQUAL(_f, _s, _err_hint) \ 780 VMSTATE_SINGLE_FULL(_f, _s, 0, 0, \ 781 vmstate_info_uint8_equal, uint8_t, _err_hint) 782 783 #define VMSTATE_UINT16_EQUAL(_f, _s, _err_hint) \ 784 VMSTATE_SINGLE_FULL(_f, _s, 0, 0, \ 785 vmstate_info_uint16_equal, uint16_t, _err_hint) 786 787 #define VMSTATE_UINT16_EQUAL_V(_f, _s, _v, _err_hint) \ 788 VMSTATE_SINGLE_FULL(_f, _s, 0, _v, \ 789 vmstate_info_uint16_equal, uint16_t, _err_hint) 790 791 #define VMSTATE_INT32_EQUAL(_f, _s, _err_hint) \ 792 VMSTATE_SINGLE_FULL(_f, _s, 0, 0, \ 793 vmstate_info_int32_equal, int32_t, _err_hint) 794 795 #define VMSTATE_UINT32_EQUAL_V(_f, _s, _v, _err_hint) \ 796 VMSTATE_SINGLE_FULL(_f, _s, 0, _v, \ 797 vmstate_info_uint32_equal, uint32_t, _err_hint) 798 799 #define VMSTATE_UINT32_EQUAL(_f, _s, _err_hint) \ 800 VMSTATE_UINT32_EQUAL_V(_f, _s, 0, _err_hint) 801 802 #define VMSTATE_UINT64_EQUAL_V(_f, _s, _v, _err_hint) \ 803 VMSTATE_SINGLE_FULL(_f, _s, 0, _v, \ 804 vmstate_info_uint64_equal, uint64_t, _err_hint) 805 806 #define VMSTATE_UINT64_EQUAL(_f, _s, _err_hint) \ 807 VMSTATE_UINT64_EQUAL_V(_f, _s, 0, _err_hint) 808 809 #define VMSTATE_INT32_POSITIVE_LE(_f, _s) \ 810 VMSTATE_SINGLE(_f, _s, 0, vmstate_info_int32_le, int32_t) 811 812 #define VMSTATE_INT8_TEST(_f, _s, _t) \ 813 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_int8, int8_t) 814 815 #define VMSTATE_INT16_TEST(_f, _s, _t) \ 816 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_int16, int16_t) 817 818 #define VMSTATE_INT32_TEST(_f, _s, _t) \ 819 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_int32, int32_t) 820 821 #define VMSTATE_INT64_TEST(_f, _s, _t) \ 822 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_int64, int64_t) 823 824 #define VMSTATE_UINT8_TEST(_f, _s, _t) \ 825 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint8, uint8_t) 826 827 #define VMSTATE_UINT16_TEST(_f, _s, _t) \ 828 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint16, uint16_t) 829 830 #define VMSTATE_UINT32_TEST(_f, _s, _t) \ 831 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint32, uint32_t) 832 833 #define VMSTATE_UINT64_TEST(_f, _s, _t) \ 834 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint64, uint64_t) 835 836 837 #define VMSTATE_FLOAT64_V(_f, _s, _v) \ 838 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_float64, float64) 839 840 #define VMSTATE_FLOAT64(_f, _s) \ 841 VMSTATE_FLOAT64_V(_f, _s, 0) 842 843 #define VMSTATE_TIMER_PTR_TEST(_f, _s, _test) \ 844 VMSTATE_POINTER_TEST(_f, _s, _test, vmstate_info_timer, QEMUTimer *) 845 846 #define VMSTATE_TIMER_PTR_V(_f, _s, _v) \ 847 VMSTATE_POINTER(_f, _s, _v, vmstate_info_timer, QEMUTimer *) 848 849 #define VMSTATE_TIMER_PTR(_f, _s) \ 850 VMSTATE_TIMER_PTR_V(_f, _s, 0) 851 852 #define VMSTATE_TIMER_PTR_ARRAY(_f, _s, _n) \ 853 VMSTATE_ARRAY_OF_POINTER(_f, _s, _n, 0, vmstate_info_timer, QEMUTimer *) 854 855 #define VMSTATE_TIMER_TEST(_f, _s, _test) \ 856 VMSTATE_SINGLE_TEST(_f, _s, _test, 0, vmstate_info_timer, QEMUTimer) 857 858 #define VMSTATE_TIMER_V(_f, _s, _v) \ 859 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_timer, QEMUTimer) 860 861 #define VMSTATE_TIMER(_f, _s) \ 862 VMSTATE_TIMER_V(_f, _s, 0) 863 864 #define VMSTATE_TIMER_ARRAY(_f, _s, _n) \ 865 VMSTATE_ARRAY(_f, _s, _n, 0, vmstate_info_timer, QEMUTimer) 866 867 #define VMSTATE_BOOL_ARRAY_V(_f, _s, _n, _v) \ 868 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_bool, bool) 869 870 #define VMSTATE_BOOL_ARRAY(_f, _s, _n) \ 871 VMSTATE_BOOL_ARRAY_V(_f, _s, _n, 0) 872 873 #define VMSTATE_UINT16_ARRAY_V(_f, _s, _n, _v) \ 874 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint16, uint16_t) 875 876 #define VMSTATE_UINT16_2DARRAY_V(_f, _s, _n1, _n2, _v) \ 877 VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint16, uint16_t) 878 879 #define VMSTATE_UINT16_ARRAY(_f, _s, _n) \ 880 VMSTATE_UINT16_ARRAY_V(_f, _s, _n, 0) 881 882 #define VMSTATE_UINT16_2DARRAY(_f, _s, _n1, _n2) \ 883 VMSTATE_UINT16_2DARRAY_V(_f, _s, _n1, _n2, 0) 884 885 #define VMSTATE_UINT8_2DARRAY_V(_f, _s, _n1, _n2, _v) \ 886 VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint8, uint8_t) 887 888 #define VMSTATE_UINT8_ARRAY_V(_f, _s, _n, _v) \ 889 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint8, uint8_t) 890 891 #define VMSTATE_UINT8_ARRAY(_f, _s, _n) \ 892 VMSTATE_UINT8_ARRAY_V(_f, _s, _n, 0) 893 894 #define VMSTATE_UINT8_SUB_ARRAY(_f, _s, _start, _num) \ 895 VMSTATE_SUB_ARRAY(_f, _s, _start, _num, 0, vmstate_info_uint8, uint8_t) 896 897 #define VMSTATE_UINT8_2DARRAY(_f, _s, _n1, _n2) \ 898 VMSTATE_UINT8_2DARRAY_V(_f, _s, _n1, _n2, 0) 899 900 #define VMSTATE_UINT32_ARRAY_V(_f, _s, _n, _v) \ 901 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint32, uint32_t) 902 903 #define VMSTATE_UINT32_2DARRAY_V(_f, _s, _n1, _n2, _v) \ 904 VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint32, uint32_t) 905 906 #define VMSTATE_UINT32_ARRAY(_f, _s, _n) \ 907 VMSTATE_UINT32_ARRAY_V(_f, _s, _n, 0) 908 909 #define VMSTATE_UINT32_SUB_ARRAY(_f, _s, _start, _num) \ 910 VMSTATE_SUB_ARRAY(_f, _s, _start, _num, 0, vmstate_info_uint32, uint32_t) 911 912 #define VMSTATE_UINT32_2DARRAY(_f, _s, _n1, _n2) \ 913 VMSTATE_UINT32_2DARRAY_V(_f, _s, _n1, _n2, 0) 914 915 #define VMSTATE_UINT64_ARRAY_V(_f, _s, _n, _v) \ 916 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint64, uint64_t) 917 918 #define VMSTATE_UINT64_ARRAY(_f, _s, _n) \ 919 VMSTATE_UINT64_ARRAY_V(_f, _s, _n, 0) 920 921 #define VMSTATE_UINT64_SUB_ARRAY(_f, _s, _start, _num) \ 922 VMSTATE_SUB_ARRAY(_f, _s, _start, _num, 0, vmstate_info_uint64, uint64_t) 923 924 #define VMSTATE_UINT64_2DARRAY(_f, _s, _n1, _n2) \ 925 VMSTATE_UINT64_2DARRAY_V(_f, _s, _n1, _n2, 0) 926 927 #define VMSTATE_UINT64_2DARRAY_V(_f, _s, _n1, _n2, _v) \ 928 VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint64, uint64_t) 929 930 #define VMSTATE_INT16_ARRAY_V(_f, _s, _n, _v) \ 931 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int16, int16_t) 932 933 #define VMSTATE_INT16_ARRAY(_f, _s, _n) \ 934 VMSTATE_INT16_ARRAY_V(_f, _s, _n, 0) 935 936 #define VMSTATE_INT32_ARRAY_V(_f, _s, _n, _v) \ 937 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int32, int32_t) 938 939 #define VMSTATE_INT32_ARRAY(_f, _s, _n) \ 940 VMSTATE_INT32_ARRAY_V(_f, _s, _n, 0) 941 942 #define VMSTATE_INT64_ARRAY_V(_f, _s, _n, _v) \ 943 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int64, int64_t) 944 945 #define VMSTATE_INT64_ARRAY(_f, _s, _n) \ 946 VMSTATE_INT64_ARRAY_V(_f, _s, _n, 0) 947 948 #define VMSTATE_FLOAT64_ARRAY_V(_f, _s, _n, _v) \ 949 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_float64, float64) 950 951 #define VMSTATE_FLOAT64_ARRAY(_f, _s, _n) \ 952 VMSTATE_FLOAT64_ARRAY_V(_f, _s, _n, 0) 953 954 #define VMSTATE_CPUDOUBLE_ARRAY_V(_f, _s, _n, _v) \ 955 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_cpudouble, CPU_DoubleU) 956 957 #define VMSTATE_CPUDOUBLE_ARRAY(_f, _s, _n) \ 958 VMSTATE_CPUDOUBLE_ARRAY_V(_f, _s, _n, 0) 959 960 #define VMSTATE_BUFFER_V(_f, _s, _v) \ 961 VMSTATE_STATIC_BUFFER(_f, _s, _v, NULL, 0, sizeof(typeof_field(_s, _f))) 962 963 #define VMSTATE_BUFFER(_f, _s) \ 964 VMSTATE_BUFFER_V(_f, _s, 0) 965 966 #define VMSTATE_PARTIAL_BUFFER(_f, _s, _size) \ 967 VMSTATE_STATIC_BUFFER(_f, _s, 0, NULL, 0, _size) 968 969 #define VMSTATE_BUFFER_START_MIDDLE_V(_f, _s, _start, _v) \ 970 VMSTATE_STATIC_BUFFER(_f, _s, _v, NULL, _start, sizeof(typeof_field(_s, _f))) 971 972 #define VMSTATE_BUFFER_START_MIDDLE(_f, _s, _start) \ 973 VMSTATE_BUFFER_START_MIDDLE_V(_f, _s, _start, 0) 974 975 #define VMSTATE_PARTIAL_VBUFFER(_f, _s, _size) \ 976 VMSTATE_VBUFFER(_f, _s, 0, NULL, _size) 977 978 #define VMSTATE_PARTIAL_VBUFFER_UINT32(_f, _s, _size) \ 979 VMSTATE_VBUFFER_UINT32(_f, _s, 0, NULL, _size) 980 981 #define VMSTATE_BUFFER_TEST(_f, _s, _test) \ 982 VMSTATE_STATIC_BUFFER(_f, _s, 0, _test, 0, sizeof(typeof_field(_s, _f))) 983 984 #define VMSTATE_BUFFER_UNSAFE(_field, _state, _version, _size) \ 985 VMSTATE_BUFFER_UNSAFE_INFO(_field, _state, _version, vmstate_info_buffer, _size) 986 987 #define VMSTATE_UNUSED_V(_v, _size) \ 988 VMSTATE_UNUSED_BUFFER(NULL, _v, _size) 989 990 #define VMSTATE_UNUSED(_size) \ 991 VMSTATE_UNUSED_V(0, _size) 992 993 #define VMSTATE_UNUSED_TEST(_test, _size) \ 994 VMSTATE_UNUSED_BUFFER(_test, 0, _size) 995 996 #define VMSTATE_END_OF_LIST() \ 997 {} 998 999 int vmstate_load_state(QEMUFile *f, const VMStateDescription *vmsd, 1000 void *opaque, int version_id); 1001 int vmstate_save_state(QEMUFile *f, const VMStateDescription *vmsd, 1002 void *opaque, QJSON *vmdesc); 1003 1004 bool vmstate_save_needed(const VMStateDescription *vmsd, void *opaque); 1005 1006 /* Returns: 0 on success, -1 on failure */ 1007 int vmstate_register_with_alias_id(DeviceState *dev, int instance_id, 1008 const VMStateDescription *vmsd, 1009 void *base, int alias_id, 1010 int required_for_version, 1011 Error **errp); 1012 1013 /* Returns: 0 on success, -1 on failure */ 1014 static inline int vmstate_register(DeviceState *dev, int instance_id, 1015 const VMStateDescription *vmsd, 1016 void *opaque) 1017 { 1018 return vmstate_register_with_alias_id(dev, instance_id, vmsd, 1019 opaque, -1, 0, NULL); 1020 } 1021 1022 void vmstate_unregister(DeviceState *dev, const VMStateDescription *vmsd, 1023 void *opaque); 1024 1025 struct MemoryRegion; 1026 void vmstate_register_ram(struct MemoryRegion *memory, DeviceState *dev); 1027 void vmstate_unregister_ram(struct MemoryRegion *memory, DeviceState *dev); 1028 void vmstate_register_ram_global(struct MemoryRegion *memory); 1029 1030 bool vmstate_check_only_migratable(const VMStateDescription *vmsd); 1031 1032 #endif 1033