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 const char *err_hint; 159 size_t offset; 160 size_t size; 161 size_t start; 162 int num; 163 size_t num_offset; 164 size_t size_offset; 165 const VMStateInfo *info; 166 enum VMStateFlags flags; 167 const VMStateDescription *vmsd; 168 int version_id; 169 bool (*field_exists)(void *opaque, int version_id); 170 }; 171 172 struct VMStateDescription { 173 const char *name; 174 int unmigratable; 175 int version_id; 176 int minimum_version_id; 177 int minimum_version_id_old; 178 MigrationPriority priority; 179 LoadStateHandler *load_state_old; 180 int (*pre_load)(void *opaque); 181 int (*post_load)(void *opaque, int version_id); 182 void (*pre_save)(void *opaque); 183 bool (*needed)(void *opaque); 184 VMStateField *fields; 185 const VMStateDescription **subsections; 186 }; 187 188 extern const VMStateDescription vmstate_dummy; 189 190 extern const VMStateInfo vmstate_info_bool; 191 192 extern const VMStateInfo vmstate_info_int8; 193 extern const VMStateInfo vmstate_info_int16; 194 extern const VMStateInfo vmstate_info_int32; 195 extern const VMStateInfo vmstate_info_int64; 196 197 extern const VMStateInfo vmstate_info_uint8_equal; 198 extern const VMStateInfo vmstate_info_uint16_equal; 199 extern const VMStateInfo vmstate_info_int32_equal; 200 extern const VMStateInfo vmstate_info_uint32_equal; 201 extern const VMStateInfo vmstate_info_uint64_equal; 202 extern const VMStateInfo vmstate_info_int32_le; 203 204 extern const VMStateInfo vmstate_info_uint8; 205 extern const VMStateInfo vmstate_info_uint16; 206 extern const VMStateInfo vmstate_info_uint32; 207 extern const VMStateInfo vmstate_info_uint64; 208 209 /** Put this in the stream when migrating a null pointer.*/ 210 #define VMS_NULLPTR_MARKER (0x30U) /* '0' */ 211 extern const VMStateInfo vmstate_info_nullptr; 212 213 extern const VMStateInfo vmstate_info_float64; 214 extern const VMStateInfo vmstate_info_cpudouble; 215 216 extern const VMStateInfo vmstate_info_timer; 217 extern const VMStateInfo vmstate_info_buffer; 218 extern const VMStateInfo vmstate_info_unused_buffer; 219 extern const VMStateInfo vmstate_info_tmp; 220 extern const VMStateInfo vmstate_info_bitmap; 221 extern const VMStateInfo vmstate_info_qtailq; 222 223 #define type_check_2darray(t1,t2,n,m) ((t1(*)[n][m])0 - (t2*)0) 224 #define type_check_array(t1,t2,n) ((t1(*)[n])0 - (t2*)0) 225 #define type_check_pointer(t1,t2) ((t1**)0 - (t2*)0) 226 227 #define vmstate_offset_value(_state, _field, _type) \ 228 (offsetof(_state, _field) + \ 229 type_check(_type, typeof_field(_state, _field))) 230 231 #define vmstate_offset_pointer(_state, _field, _type) \ 232 (offsetof(_state, _field) + \ 233 type_check_pointer(_type, typeof_field(_state, _field))) 234 235 #define vmstate_offset_array(_state, _field, _type, _num) \ 236 (offsetof(_state, _field) + \ 237 type_check_array(_type, typeof_field(_state, _field), _num)) 238 239 #define vmstate_offset_2darray(_state, _field, _type, _n1, _n2) \ 240 (offsetof(_state, _field) + \ 241 type_check_2darray(_type, typeof_field(_state, _field), _n1, _n2)) 242 243 #define vmstate_offset_sub_array(_state, _field, _type, _start) \ 244 vmstate_offset_value(_state, _field[_start], _type) 245 246 #define vmstate_offset_buffer(_state, _field) \ 247 vmstate_offset_array(_state, _field, uint8_t, \ 248 sizeof(typeof_field(_state, _field))) 249 250 #define VMSTATE_SINGLE_TEST(_field, _state, _test, _version, _info, _type) { \ 251 .name = (stringify(_field)), \ 252 .version_id = (_version), \ 253 .field_exists = (_test), \ 254 .size = sizeof(_type), \ 255 .info = &(_info), \ 256 .flags = VMS_SINGLE, \ 257 .offset = vmstate_offset_value(_state, _field, _type), \ 258 } 259 260 #define VMSTATE_SINGLE_FULL(_field, _state, _test, _version, _info, \ 261 _type, _err_hint) { \ 262 .name = (stringify(_field)), \ 263 .err_hint = (_err_hint), \ 264 .version_id = (_version), \ 265 .field_exists = (_test), \ 266 .size = sizeof(_type), \ 267 .info = &(_info), \ 268 .flags = VMS_SINGLE, \ 269 .offset = vmstate_offset_value(_state, _field, _type), \ 270 } 271 272 /* Validate state using a boolean predicate. */ 273 #define VMSTATE_VALIDATE(_name, _test) { \ 274 .name = (_name), \ 275 .field_exists = (_test), \ 276 .flags = VMS_ARRAY | VMS_MUST_EXIST, \ 277 .num = 0, /* 0 elements: no data, only run _test */ \ 278 } 279 280 #define VMSTATE_POINTER(_field, _state, _version, _info, _type) { \ 281 .name = (stringify(_field)), \ 282 .version_id = (_version), \ 283 .info = &(_info), \ 284 .size = sizeof(_type), \ 285 .flags = VMS_SINGLE|VMS_POINTER, \ 286 .offset = vmstate_offset_value(_state, _field, _type), \ 287 } 288 289 #define VMSTATE_POINTER_TEST(_field, _state, _test, _info, _type) { \ 290 .name = (stringify(_field)), \ 291 .info = &(_info), \ 292 .field_exists = (_test), \ 293 .size = sizeof(_type), \ 294 .flags = VMS_SINGLE|VMS_POINTER, \ 295 .offset = vmstate_offset_value(_state, _field, _type), \ 296 } 297 298 #define VMSTATE_ARRAY(_field, _state, _num, _version, _info, _type) {\ 299 .name = (stringify(_field)), \ 300 .version_id = (_version), \ 301 .num = (_num), \ 302 .info = &(_info), \ 303 .size = sizeof(_type), \ 304 .flags = VMS_ARRAY, \ 305 .offset = vmstate_offset_array(_state, _field, _type, _num), \ 306 } 307 308 #define VMSTATE_2DARRAY(_field, _state, _n1, _n2, _version, _info, _type) { \ 309 .name = (stringify(_field)), \ 310 .version_id = (_version), \ 311 .num = (_n1) * (_n2), \ 312 .info = &(_info), \ 313 .size = sizeof(_type), \ 314 .flags = VMS_ARRAY, \ 315 .offset = vmstate_offset_2darray(_state, _field, _type, _n1, _n2), \ 316 } 317 318 #define VMSTATE_VARRAY_MULTIPLY(_field, _state, _field_num, _multiply, _info, _type) { \ 319 .name = (stringify(_field)), \ 320 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\ 321 .num = (_multiply), \ 322 .info = &(_info), \ 323 .size = sizeof(_type), \ 324 .flags = VMS_VARRAY_UINT32|VMS_MULTIPLY_ELEMENTS, \ 325 .offset = offsetof(_state, _field), \ 326 } 327 328 #define VMSTATE_ARRAY_TEST(_field, _state, _num, _test, _info, _type) {\ 329 .name = (stringify(_field)), \ 330 .field_exists = (_test), \ 331 .num = (_num), \ 332 .info = &(_info), \ 333 .size = sizeof(_type), \ 334 .flags = VMS_ARRAY, \ 335 .offset = vmstate_offset_array(_state, _field, _type, _num),\ 336 } 337 338 #define VMSTATE_SUB_ARRAY(_field, _state, _start, _num, _version, _info, _type) { \ 339 .name = (stringify(_field)), \ 340 .version_id = (_version), \ 341 .num = (_num), \ 342 .info = &(_info), \ 343 .size = sizeof(_type), \ 344 .flags = VMS_ARRAY, \ 345 .offset = vmstate_offset_sub_array(_state, _field, _type, _start), \ 346 } 347 348 #define VMSTATE_ARRAY_INT32_UNSAFE(_field, _state, _field_num, _info, _type) {\ 349 .name = (stringify(_field)), \ 350 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \ 351 .info = &(_info), \ 352 .size = sizeof(_type), \ 353 .flags = VMS_VARRAY_INT32, \ 354 .offset = offsetof(_state, _field), \ 355 } 356 357 #define VMSTATE_VARRAY_INT32(_field, _state, _field_num, _version, _info, _type) {\ 358 .name = (stringify(_field)), \ 359 .version_id = (_version), \ 360 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \ 361 .info = &(_info), \ 362 .size = sizeof(_type), \ 363 .flags = VMS_VARRAY_INT32|VMS_POINTER, \ 364 .offset = vmstate_offset_pointer(_state, _field, _type), \ 365 } 366 367 #define VMSTATE_VARRAY_UINT32(_field, _state, _field_num, _version, _info, _type) {\ 368 .name = (stringify(_field)), \ 369 .version_id = (_version), \ 370 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\ 371 .info = &(_info), \ 372 .size = sizeof(_type), \ 373 .flags = VMS_VARRAY_UINT32|VMS_POINTER, \ 374 .offset = vmstate_offset_pointer(_state, _field, _type), \ 375 } 376 377 #define VMSTATE_VARRAY_UINT32_ALLOC(_field, _state, _field_num, _version, _info, _type) {\ 378 .name = (stringify(_field)), \ 379 .version_id = (_version), \ 380 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\ 381 .info = &(_info), \ 382 .size = sizeof(_type), \ 383 .flags = VMS_VARRAY_UINT32|VMS_POINTER|VMS_ALLOC, \ 384 .offset = vmstate_offset_pointer(_state, _field, _type), \ 385 } 386 387 #define VMSTATE_VARRAY_UINT16_UNSAFE(_field, _state, _field_num, _version, _info, _type) {\ 388 .name = (stringify(_field)), \ 389 .version_id = (_version), \ 390 .num_offset = vmstate_offset_value(_state, _field_num, uint16_t),\ 391 .info = &(_info), \ 392 .size = sizeof(_type), \ 393 .flags = VMS_VARRAY_UINT16, \ 394 .offset = offsetof(_state, _field), \ 395 } 396 397 #define VMSTATE_STRUCT_TEST(_field, _state, _test, _version, _vmsd, _type) { \ 398 .name = (stringify(_field)), \ 399 .version_id = (_version), \ 400 .field_exists = (_test), \ 401 .vmsd = &(_vmsd), \ 402 .size = sizeof(_type), \ 403 .flags = VMS_STRUCT, \ 404 .offset = vmstate_offset_value(_state, _field, _type), \ 405 } 406 407 #define VMSTATE_STRUCT_POINTER_V(_field, _state, _version, _vmsd, _type) { \ 408 .name = (stringify(_field)), \ 409 .version_id = (_version), \ 410 .vmsd = &(_vmsd), \ 411 .size = sizeof(_type *), \ 412 .flags = VMS_STRUCT|VMS_POINTER, \ 413 .offset = vmstate_offset_pointer(_state, _field, _type), \ 414 } 415 416 #define VMSTATE_STRUCT_POINTER_TEST_V(_field, _state, _test, _version, _vmsd, _type) { \ 417 .name = (stringify(_field)), \ 418 .version_id = (_version), \ 419 .field_exists = (_test), \ 420 .vmsd = &(_vmsd), \ 421 .size = sizeof(_type *), \ 422 .flags = VMS_STRUCT|VMS_POINTER, \ 423 .offset = vmstate_offset_pointer(_state, _field, _type), \ 424 } 425 426 #define VMSTATE_ARRAY_OF_POINTER(_field, _state, _num, _version, _info, _type) {\ 427 .name = (stringify(_field)), \ 428 .version_id = (_version), \ 429 .num = (_num), \ 430 .info = &(_info), \ 431 .size = sizeof(_type), \ 432 .flags = VMS_ARRAY|VMS_ARRAY_OF_POINTER, \ 433 .offset = vmstate_offset_array(_state, _field, _type, _num), \ 434 } 435 436 #define VMSTATE_ARRAY_OF_POINTER_TO_STRUCT(_f, _s, _n, _v, _vmsd, _type) { \ 437 .name = (stringify(_f)), \ 438 .version_id = (_v), \ 439 .num = (_n), \ 440 .vmsd = &(_vmsd), \ 441 .size = sizeof(_type *), \ 442 .flags = VMS_ARRAY|VMS_STRUCT|VMS_ARRAY_OF_POINTER, \ 443 .offset = vmstate_offset_array(_s, _f, _type*, _n), \ 444 } 445 446 #define VMSTATE_STRUCT_SUB_ARRAY(_field, _state, _start, _num, _version, _vmsd, _type) { \ 447 .name = (stringify(_field)), \ 448 .version_id = (_version), \ 449 .num = (_num), \ 450 .vmsd = &(_vmsd), \ 451 .size = sizeof(_type), \ 452 .flags = VMS_STRUCT|VMS_ARRAY, \ 453 .offset = vmstate_offset_sub_array(_state, _field, _type, _start), \ 454 } 455 456 #define VMSTATE_STRUCT_ARRAY_TEST(_field, _state, _num, _test, _version, _vmsd, _type) { \ 457 .name = (stringify(_field)), \ 458 .num = (_num), \ 459 .field_exists = (_test), \ 460 .version_id = (_version), \ 461 .vmsd = &(_vmsd), \ 462 .size = sizeof(_type), \ 463 .flags = VMS_STRUCT|VMS_ARRAY, \ 464 .offset = vmstate_offset_array(_state, _field, _type, _num),\ 465 } 466 467 #define VMSTATE_STRUCT_2DARRAY_TEST(_field, _state, _n1, _n2, _test, \ 468 _version, _vmsd, _type) { \ 469 .name = (stringify(_field)), \ 470 .num = (_n1) * (_n2), \ 471 .field_exists = (_test), \ 472 .version_id = (_version), \ 473 .vmsd = &(_vmsd), \ 474 .size = sizeof(_type), \ 475 .flags = VMS_STRUCT | VMS_ARRAY, \ 476 .offset = vmstate_offset_2darray(_state, _field, _type, \ 477 _n1, _n2), \ 478 } 479 480 #define VMSTATE_STRUCT_VARRAY_UINT8(_field, _state, _field_num, _version, _vmsd, _type) { \ 481 .name = (stringify(_field)), \ 482 .num_offset = vmstate_offset_value(_state, _field_num, uint8_t), \ 483 .version_id = (_version), \ 484 .vmsd = &(_vmsd), \ 485 .size = sizeof(_type), \ 486 .flags = VMS_STRUCT|VMS_VARRAY_UINT8, \ 487 .offset = offsetof(_state, _field), \ 488 } 489 490 /* a variable length array (i.e. _type *_field) but we know the 491 * length 492 */ 493 #define VMSTATE_STRUCT_VARRAY_POINTER_KNOWN(_field, _state, _num, _version, _vmsd, _type) { \ 494 .name = (stringify(_field)), \ 495 .num = (_num), \ 496 .version_id = (_version), \ 497 .vmsd = &(_vmsd), \ 498 .size = sizeof(_type), \ 499 .flags = VMS_STRUCT|VMS_ARRAY|VMS_POINTER, \ 500 .offset = offsetof(_state, _field), \ 501 } 502 503 #define VMSTATE_STRUCT_VARRAY_POINTER_INT32(_field, _state, _field_num, _vmsd, _type) { \ 504 .name = (stringify(_field)), \ 505 .version_id = 0, \ 506 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \ 507 .size = sizeof(_type), \ 508 .vmsd = &(_vmsd), \ 509 .flags = VMS_POINTER | VMS_VARRAY_INT32 | VMS_STRUCT, \ 510 .offset = vmstate_offset_pointer(_state, _field, _type), \ 511 } 512 513 #define VMSTATE_STRUCT_VARRAY_POINTER_UINT32(_field, _state, _field_num, _vmsd, _type) { \ 514 .name = (stringify(_field)), \ 515 .version_id = 0, \ 516 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\ 517 .size = sizeof(_type), \ 518 .vmsd = &(_vmsd), \ 519 .flags = VMS_POINTER | VMS_VARRAY_INT32 | VMS_STRUCT, \ 520 .offset = vmstate_offset_pointer(_state, _field, _type), \ 521 } 522 523 #define VMSTATE_STRUCT_VARRAY_POINTER_UINT16(_field, _state, _field_num, _vmsd, _type) { \ 524 .name = (stringify(_field)), \ 525 .version_id = 0, \ 526 .num_offset = vmstate_offset_value(_state, _field_num, uint16_t),\ 527 .size = sizeof(_type), \ 528 .vmsd = &(_vmsd), \ 529 .flags = VMS_POINTER | VMS_VARRAY_UINT16 | VMS_STRUCT, \ 530 .offset = vmstate_offset_pointer(_state, _field, _type), \ 531 } 532 533 #define VMSTATE_STRUCT_VARRAY_INT32(_field, _state, _field_num, _version, _vmsd, _type) { \ 534 .name = (stringify(_field)), \ 535 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \ 536 .version_id = (_version), \ 537 .vmsd = &(_vmsd), \ 538 .size = sizeof(_type), \ 539 .flags = VMS_STRUCT|VMS_VARRAY_INT32, \ 540 .offset = offsetof(_state, _field), \ 541 } 542 543 #define VMSTATE_STRUCT_VARRAY_UINT32(_field, _state, _field_num, _version, _vmsd, _type) { \ 544 .name = (stringify(_field)), \ 545 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t), \ 546 .version_id = (_version), \ 547 .vmsd = &(_vmsd), \ 548 .size = sizeof(_type), \ 549 .flags = VMS_STRUCT|VMS_VARRAY_UINT32, \ 550 .offset = offsetof(_state, _field), \ 551 } 552 553 #define VMSTATE_STRUCT_VARRAY_ALLOC(_field, _state, _field_num, _version, _vmsd, _type) {\ 554 .name = (stringify(_field)), \ 555 .version_id = (_version), \ 556 .vmsd = &(_vmsd), \ 557 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \ 558 .size = sizeof(_type), \ 559 .flags = VMS_STRUCT|VMS_VARRAY_INT32|VMS_ALLOC|VMS_POINTER, \ 560 .offset = vmstate_offset_pointer(_state, _field, _type), \ 561 } 562 563 #define VMSTATE_STATIC_BUFFER(_field, _state, _version, _test, _start, _size) { \ 564 .name = (stringify(_field)), \ 565 .version_id = (_version), \ 566 .field_exists = (_test), \ 567 .size = (_size - _start), \ 568 .info = &vmstate_info_buffer, \ 569 .flags = VMS_BUFFER, \ 570 .offset = vmstate_offset_buffer(_state, _field) + _start, \ 571 } 572 573 #define VMSTATE_VBUFFER_MULTIPLY(_field, _state, _version, _test, \ 574 _field_size, _multiply) { \ 575 .name = (stringify(_field)), \ 576 .version_id = (_version), \ 577 .field_exists = (_test), \ 578 .size_offset = vmstate_offset_value(_state, _field_size, uint32_t),\ 579 .size = (_multiply), \ 580 .info = &vmstate_info_buffer, \ 581 .flags = VMS_VBUFFER|VMS_POINTER|VMS_MULTIPLY, \ 582 .offset = offsetof(_state, _field), \ 583 } 584 585 #define VMSTATE_VBUFFER(_field, _state, _version, _test, _field_size) { \ 586 .name = (stringify(_field)), \ 587 .version_id = (_version), \ 588 .field_exists = (_test), \ 589 .size_offset = vmstate_offset_value(_state, _field_size, int32_t),\ 590 .info = &vmstate_info_buffer, \ 591 .flags = VMS_VBUFFER|VMS_POINTER, \ 592 .offset = offsetof(_state, _field), \ 593 } 594 595 #define VMSTATE_VBUFFER_UINT32(_field, _state, _version, _test, _field_size) { \ 596 .name = (stringify(_field)), \ 597 .version_id = (_version), \ 598 .field_exists = (_test), \ 599 .size_offset = vmstate_offset_value(_state, _field_size, uint32_t),\ 600 .info = &vmstate_info_buffer, \ 601 .flags = VMS_VBUFFER|VMS_POINTER, \ 602 .offset = offsetof(_state, _field), \ 603 } 604 605 #define VMSTATE_VBUFFER_ALLOC_UINT32(_field, _state, _version, \ 606 _test, _field_size) { \ 607 .name = (stringify(_field)), \ 608 .version_id = (_version), \ 609 .field_exists = (_test), \ 610 .size_offset = vmstate_offset_value(_state, _field_size, uint32_t),\ 611 .info = &vmstate_info_buffer, \ 612 .flags = VMS_VBUFFER|VMS_POINTER|VMS_ALLOC, \ 613 .offset = offsetof(_state, _field), \ 614 } 615 616 #define VMSTATE_BUFFER_UNSAFE_INFO_TEST(_field, _state, _test, _version, _info, _size) { \ 617 .name = (stringify(_field)), \ 618 .version_id = (_version), \ 619 .field_exists = (_test), \ 620 .size = (_size), \ 621 .info = &(_info), \ 622 .flags = VMS_BUFFER, \ 623 .offset = offsetof(_state, _field), \ 624 } 625 626 #define VMSTATE_BUFFER_POINTER_UNSAFE(_field, _state, _version, _size) { \ 627 .name = (stringify(_field)), \ 628 .version_id = (_version), \ 629 .size = (_size), \ 630 .info = &vmstate_info_buffer, \ 631 .flags = VMS_BUFFER|VMS_POINTER, \ 632 .offset = offsetof(_state, _field), \ 633 } 634 635 /* Allocate a temporary of type 'tmp_type', set tmp->parent to _state 636 * and execute the vmsd on the temporary. Note that we're working with 637 * the whole of _state here, not a field within it. 638 * We compile time check that: 639 * That _tmp_type contains a 'parent' member that's a pointer to the 640 * '_state' type 641 * That the pointer is right at the start of _tmp_type. 642 */ 643 #define VMSTATE_WITH_TMP(_state, _tmp_type, _vmsd) { \ 644 .name = "tmp", \ 645 .size = sizeof(_tmp_type) + \ 646 QEMU_BUILD_BUG_ON_ZERO(offsetof(_tmp_type, parent) != 0) + \ 647 type_check_pointer(_state, \ 648 typeof_field(_tmp_type, parent)), \ 649 .vmsd = &(_vmsd), \ 650 .info = &vmstate_info_tmp, \ 651 } 652 653 #define VMSTATE_UNUSED_BUFFER(_test, _version, _size) { \ 654 .name = "unused", \ 655 .field_exists = (_test), \ 656 .version_id = (_version), \ 657 .size = (_size), \ 658 .info = &vmstate_info_unused_buffer, \ 659 .flags = VMS_BUFFER, \ 660 } 661 662 /* Discard size * field_num bytes, where field_num is a uint32 member */ 663 #define VMSTATE_UNUSED_VARRAY_UINT32(_state, _test, _version, _field_num, _size) {\ 664 .name = "unused", \ 665 .field_exists = (_test), \ 666 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\ 667 .version_id = (_version), \ 668 .size = (_size), \ 669 .info = &vmstate_info_unused_buffer, \ 670 .flags = VMS_VARRAY_UINT32 | VMS_BUFFER, \ 671 } 672 673 /* _field_size should be a int32_t field in the _state struct giving the 674 * size of the bitmap _field in bits. 675 */ 676 #define VMSTATE_BITMAP(_field, _state, _version, _field_size) { \ 677 .name = (stringify(_field)), \ 678 .version_id = (_version), \ 679 .size_offset = vmstate_offset_value(_state, _field_size, int32_t),\ 680 .info = &vmstate_info_bitmap, \ 681 .flags = VMS_VBUFFER|VMS_POINTER, \ 682 .offset = offsetof(_state, _field), \ 683 } 684 685 /* For migrating a QTAILQ. 686 * Target QTAILQ needs be properly initialized. 687 * _type: type of QTAILQ element 688 * _next: name of QTAILQ entry field in QTAILQ element 689 * _vmsd: VMSD for QTAILQ element 690 * size: size of QTAILQ element 691 * start: offset of QTAILQ entry in QTAILQ element 692 */ 693 #define VMSTATE_QTAILQ_V(_field, _state, _version, _vmsd, _type, _next) \ 694 { \ 695 .name = (stringify(_field)), \ 696 .version_id = (_version), \ 697 .vmsd = &(_vmsd), \ 698 .size = sizeof(_type), \ 699 .info = &vmstate_info_qtailq, \ 700 .offset = offsetof(_state, _field), \ 701 .start = offsetof(_type, _next), \ 702 } 703 704 /* _f : field name 705 _f_n : num of elements field_name 706 _n : num of elements 707 _s : struct state name 708 _v : version 709 */ 710 711 #define VMSTATE_SINGLE(_field, _state, _version, _info, _type) \ 712 VMSTATE_SINGLE_TEST(_field, _state, NULL, _version, _info, _type) 713 714 #define VMSTATE_STRUCT(_field, _state, _version, _vmsd, _type) \ 715 VMSTATE_STRUCT_TEST(_field, _state, NULL, _version, _vmsd, _type) 716 717 #define VMSTATE_STRUCT_POINTER(_field, _state, _vmsd, _type) \ 718 VMSTATE_STRUCT_POINTER_V(_field, _state, 0, _vmsd, _type) 719 720 #define VMSTATE_STRUCT_POINTER_TEST(_field, _state, _test, _vmsd, _type) \ 721 VMSTATE_STRUCT_POINTER_TEST_V(_field, _state, _test, 0, _vmsd, _type) 722 723 #define VMSTATE_STRUCT_ARRAY(_field, _state, _num, _version, _vmsd, _type) \ 724 VMSTATE_STRUCT_ARRAY_TEST(_field, _state, _num, NULL, _version, \ 725 _vmsd, _type) 726 727 #define VMSTATE_STRUCT_2DARRAY(_field, _state, _n1, _n2, _version, \ 728 _vmsd, _type) \ 729 VMSTATE_STRUCT_2DARRAY_TEST(_field, _state, _n1, _n2, NULL, \ 730 _version, _vmsd, _type) 731 732 #define VMSTATE_BUFFER_UNSAFE_INFO(_field, _state, _version, _info, _size) \ 733 VMSTATE_BUFFER_UNSAFE_INFO_TEST(_field, _state, NULL, _version, _info, \ 734 _size) 735 736 #define VMSTATE_BOOL_V(_f, _s, _v) \ 737 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_bool, bool) 738 739 #define VMSTATE_INT8_V(_f, _s, _v) \ 740 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int8, int8_t) 741 #define VMSTATE_INT16_V(_f, _s, _v) \ 742 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int16, int16_t) 743 #define VMSTATE_INT32_V(_f, _s, _v) \ 744 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int32, int32_t) 745 #define VMSTATE_INT64_V(_f, _s, _v) \ 746 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int64, int64_t) 747 748 #define VMSTATE_UINT8_V(_f, _s, _v) \ 749 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint8, uint8_t) 750 #define VMSTATE_UINT16_V(_f, _s, _v) \ 751 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint16, uint16_t) 752 #define VMSTATE_UINT32_V(_f, _s, _v) \ 753 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint32, uint32_t) 754 #define VMSTATE_UINT64_V(_f, _s, _v) \ 755 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint64, uint64_t) 756 757 #define VMSTATE_BOOL(_f, _s) \ 758 VMSTATE_BOOL_V(_f, _s, 0) 759 760 #define VMSTATE_INT8(_f, _s) \ 761 VMSTATE_INT8_V(_f, _s, 0) 762 #define VMSTATE_INT16(_f, _s) \ 763 VMSTATE_INT16_V(_f, _s, 0) 764 #define VMSTATE_INT32(_f, _s) \ 765 VMSTATE_INT32_V(_f, _s, 0) 766 #define VMSTATE_INT64(_f, _s) \ 767 VMSTATE_INT64_V(_f, _s, 0) 768 769 #define VMSTATE_UINT8(_f, _s) \ 770 VMSTATE_UINT8_V(_f, _s, 0) 771 #define VMSTATE_UINT16(_f, _s) \ 772 VMSTATE_UINT16_V(_f, _s, 0) 773 #define VMSTATE_UINT32(_f, _s) \ 774 VMSTATE_UINT32_V(_f, _s, 0) 775 #define VMSTATE_UINT64(_f, _s) \ 776 VMSTATE_UINT64_V(_f, _s, 0) 777 778 #define VMSTATE_UINT8_EQUAL(_f, _s, _err_hint) \ 779 VMSTATE_SINGLE_FULL(_f, _s, 0, 0, \ 780 vmstate_info_uint8_equal, uint8_t, _err_hint) 781 782 #define VMSTATE_UINT16_EQUAL(_f, _s, _err_hint) \ 783 VMSTATE_SINGLE_FULL(_f, _s, 0, 0, \ 784 vmstate_info_uint16_equal, uint16_t, _err_hint) 785 786 #define VMSTATE_UINT16_EQUAL_V(_f, _s, _v, _err_hint) \ 787 VMSTATE_SINGLE_FULL(_f, _s, 0, _v, \ 788 vmstate_info_uint16_equal, uint16_t, _err_hint) 789 790 #define VMSTATE_INT32_EQUAL(_f, _s, _err_hint) \ 791 VMSTATE_SINGLE_FULL(_f, _s, 0, 0, \ 792 vmstate_info_int32_equal, int32_t, _err_hint) 793 794 #define VMSTATE_UINT32_EQUAL_V(_f, _s, _v, _err_hint) \ 795 VMSTATE_SINGLE_FULL(_f, _s, 0, _v, \ 796 vmstate_info_uint32_equal, uint32_t, _err_hint) 797 798 #define VMSTATE_UINT32_EQUAL(_f, _s, _err_hint) \ 799 VMSTATE_UINT32_EQUAL_V(_f, _s, 0, _err_hint) 800 801 #define VMSTATE_UINT64_EQUAL_V(_f, _s, _v, _err_hint) \ 802 VMSTATE_SINGLE_FULL(_f, _s, 0, _v, \ 803 vmstate_info_uint64_equal, uint64_t, _err_hint) 804 805 #define VMSTATE_UINT64_EQUAL(_f, _s, _err_hint) \ 806 VMSTATE_UINT64_EQUAL_V(_f, _s, 0, _err_hint) 807 808 #define VMSTATE_INT32_POSITIVE_LE(_f, _s) \ 809 VMSTATE_SINGLE(_f, _s, 0, vmstate_info_int32_le, int32_t) 810 811 #define VMSTATE_INT8_TEST(_f, _s, _t) \ 812 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_int8, int8_t) 813 814 #define VMSTATE_INT16_TEST(_f, _s, _t) \ 815 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_int16, int16_t) 816 817 #define VMSTATE_INT32_TEST(_f, _s, _t) \ 818 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_int32, int32_t) 819 820 #define VMSTATE_INT64_TEST(_f, _s, _t) \ 821 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_int64, int64_t) 822 823 #define VMSTATE_UINT8_TEST(_f, _s, _t) \ 824 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint8, uint8_t) 825 826 #define VMSTATE_UINT16_TEST(_f, _s, _t) \ 827 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint16, uint16_t) 828 829 #define VMSTATE_UINT32_TEST(_f, _s, _t) \ 830 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint32, uint32_t) 831 832 #define VMSTATE_UINT64_TEST(_f, _s, _t) \ 833 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint64, uint64_t) 834 835 836 #define VMSTATE_FLOAT64_V(_f, _s, _v) \ 837 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_float64, float64) 838 839 #define VMSTATE_FLOAT64(_f, _s) \ 840 VMSTATE_FLOAT64_V(_f, _s, 0) 841 842 #define VMSTATE_TIMER_PTR_TEST(_f, _s, _test) \ 843 VMSTATE_POINTER_TEST(_f, _s, _test, vmstate_info_timer, QEMUTimer *) 844 845 #define VMSTATE_TIMER_PTR_V(_f, _s, _v) \ 846 VMSTATE_POINTER(_f, _s, _v, vmstate_info_timer, QEMUTimer *) 847 848 #define VMSTATE_TIMER_PTR(_f, _s) \ 849 VMSTATE_TIMER_PTR_V(_f, _s, 0) 850 851 #define VMSTATE_TIMER_PTR_ARRAY(_f, _s, _n) \ 852 VMSTATE_ARRAY_OF_POINTER(_f, _s, _n, 0, vmstate_info_timer, QEMUTimer *) 853 854 #define VMSTATE_TIMER_TEST(_f, _s, _test) \ 855 VMSTATE_SINGLE_TEST(_f, _s, _test, 0, vmstate_info_timer, QEMUTimer) 856 857 #define VMSTATE_TIMER_V(_f, _s, _v) \ 858 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_timer, QEMUTimer) 859 860 #define VMSTATE_TIMER(_f, _s) \ 861 VMSTATE_TIMER_V(_f, _s, 0) 862 863 #define VMSTATE_TIMER_ARRAY(_f, _s, _n) \ 864 VMSTATE_ARRAY(_f, _s, _n, 0, vmstate_info_timer, QEMUTimer) 865 866 #define VMSTATE_BOOL_ARRAY_V(_f, _s, _n, _v) \ 867 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_bool, bool) 868 869 #define VMSTATE_BOOL_ARRAY(_f, _s, _n) \ 870 VMSTATE_BOOL_ARRAY_V(_f, _s, _n, 0) 871 872 #define VMSTATE_UINT16_ARRAY_V(_f, _s, _n, _v) \ 873 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint16, uint16_t) 874 875 #define VMSTATE_UINT16_2DARRAY_V(_f, _s, _n1, _n2, _v) \ 876 VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint16, uint16_t) 877 878 #define VMSTATE_UINT16_ARRAY(_f, _s, _n) \ 879 VMSTATE_UINT16_ARRAY_V(_f, _s, _n, 0) 880 881 #define VMSTATE_UINT16_2DARRAY(_f, _s, _n1, _n2) \ 882 VMSTATE_UINT16_2DARRAY_V(_f, _s, _n1, _n2, 0) 883 884 #define VMSTATE_UINT8_2DARRAY_V(_f, _s, _n1, _n2, _v) \ 885 VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint8, uint8_t) 886 887 #define VMSTATE_UINT8_ARRAY_V(_f, _s, _n, _v) \ 888 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint8, uint8_t) 889 890 #define VMSTATE_UINT8_ARRAY(_f, _s, _n) \ 891 VMSTATE_UINT8_ARRAY_V(_f, _s, _n, 0) 892 893 #define VMSTATE_UINT8_SUB_ARRAY(_f, _s, _start, _num) \ 894 VMSTATE_SUB_ARRAY(_f, _s, _start, _num, 0, vmstate_info_uint8, uint8_t) 895 896 #define VMSTATE_UINT8_2DARRAY(_f, _s, _n1, _n2) \ 897 VMSTATE_UINT8_2DARRAY_V(_f, _s, _n1, _n2, 0) 898 899 #define VMSTATE_UINT32_ARRAY_V(_f, _s, _n, _v) \ 900 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint32, uint32_t) 901 902 #define VMSTATE_UINT32_2DARRAY_V(_f, _s, _n1, _n2, _v) \ 903 VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint32, uint32_t) 904 905 #define VMSTATE_UINT32_ARRAY(_f, _s, _n) \ 906 VMSTATE_UINT32_ARRAY_V(_f, _s, _n, 0) 907 908 #define VMSTATE_UINT32_2DARRAY(_f, _s, _n1, _n2) \ 909 VMSTATE_UINT32_2DARRAY_V(_f, _s, _n1, _n2, 0) 910 911 #define VMSTATE_UINT64_ARRAY_V(_f, _s, _n, _v) \ 912 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint64, uint64_t) 913 914 #define VMSTATE_UINT64_ARRAY(_f, _s, _n) \ 915 VMSTATE_UINT64_ARRAY_V(_f, _s, _n, 0) 916 917 #define VMSTATE_UINT64_2DARRAY(_f, _s, _n1, _n2) \ 918 VMSTATE_UINT64_2DARRAY_V(_f, _s, _n1, _n2, 0) 919 920 #define VMSTATE_UINT64_2DARRAY_V(_f, _s, _n1, _n2, _v) \ 921 VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint64, uint64_t) 922 923 #define VMSTATE_INT16_ARRAY_V(_f, _s, _n, _v) \ 924 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int16, int16_t) 925 926 #define VMSTATE_INT16_ARRAY(_f, _s, _n) \ 927 VMSTATE_INT16_ARRAY_V(_f, _s, _n, 0) 928 929 #define VMSTATE_INT32_ARRAY_V(_f, _s, _n, _v) \ 930 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int32, int32_t) 931 932 #define VMSTATE_INT32_ARRAY(_f, _s, _n) \ 933 VMSTATE_INT32_ARRAY_V(_f, _s, _n, 0) 934 935 #define VMSTATE_UINT32_SUB_ARRAY(_f, _s, _start, _num) \ 936 VMSTATE_SUB_ARRAY(_f, _s, _start, _num, 0, vmstate_info_uint32, uint32_t) 937 938 #define VMSTATE_INT64_ARRAY_V(_f, _s, _n, _v) \ 939 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int64, int64_t) 940 941 #define VMSTATE_INT64_ARRAY(_f, _s, _n) \ 942 VMSTATE_INT64_ARRAY_V(_f, _s, _n, 0) 943 944 #define VMSTATE_FLOAT64_ARRAY_V(_f, _s, _n, _v) \ 945 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_float64, float64) 946 947 #define VMSTATE_FLOAT64_ARRAY(_f, _s, _n) \ 948 VMSTATE_FLOAT64_ARRAY_V(_f, _s, _n, 0) 949 950 #define VMSTATE_CPUDOUBLE_ARRAY_V(_f, _s, _n, _v) \ 951 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_cpudouble, CPU_DoubleU) 952 953 #define VMSTATE_CPUDOUBLE_ARRAY(_f, _s, _n) \ 954 VMSTATE_CPUDOUBLE_ARRAY_V(_f, _s, _n, 0) 955 956 #define VMSTATE_BUFFER_V(_f, _s, _v) \ 957 VMSTATE_STATIC_BUFFER(_f, _s, _v, NULL, 0, sizeof(typeof_field(_s, _f))) 958 959 #define VMSTATE_BUFFER(_f, _s) \ 960 VMSTATE_BUFFER_V(_f, _s, 0) 961 962 #define VMSTATE_PARTIAL_BUFFER(_f, _s, _size) \ 963 VMSTATE_STATIC_BUFFER(_f, _s, 0, NULL, 0, _size) 964 965 #define VMSTATE_BUFFER_START_MIDDLE_V(_f, _s, _start, _v) \ 966 VMSTATE_STATIC_BUFFER(_f, _s, _v, NULL, _start, sizeof(typeof_field(_s, _f))) 967 968 #define VMSTATE_BUFFER_START_MIDDLE(_f, _s, _start) \ 969 VMSTATE_BUFFER_START_MIDDLE_V(_f, _s, _start, 0) 970 971 #define VMSTATE_PARTIAL_VBUFFER(_f, _s, _size) \ 972 VMSTATE_VBUFFER(_f, _s, 0, NULL, _size) 973 974 #define VMSTATE_PARTIAL_VBUFFER_UINT32(_f, _s, _size) \ 975 VMSTATE_VBUFFER_UINT32(_f, _s, 0, NULL, _size) 976 977 #define VMSTATE_BUFFER_TEST(_f, _s, _test) \ 978 VMSTATE_STATIC_BUFFER(_f, _s, 0, _test, 0, sizeof(typeof_field(_s, _f))) 979 980 #define VMSTATE_BUFFER_UNSAFE(_field, _state, _version, _size) \ 981 VMSTATE_BUFFER_UNSAFE_INFO(_field, _state, _version, vmstate_info_buffer, _size) 982 983 #define VMSTATE_UNUSED_V(_v, _size) \ 984 VMSTATE_UNUSED_BUFFER(NULL, _v, _size) 985 986 #define VMSTATE_UNUSED(_size) \ 987 VMSTATE_UNUSED_V(0, _size) 988 989 #define VMSTATE_UNUSED_TEST(_test, _size) \ 990 VMSTATE_UNUSED_BUFFER(_test, 0, _size) 991 992 #define VMSTATE_END_OF_LIST() \ 993 {} 994 995 int vmstate_load_state(QEMUFile *f, const VMStateDescription *vmsd, 996 void *opaque, int version_id); 997 void vmstate_save_state(QEMUFile *f, const VMStateDescription *vmsd, 998 void *opaque, QJSON *vmdesc); 999 1000 bool vmstate_save_needed(const VMStateDescription *vmsd, void *opaque); 1001 1002 /* Returns: 0 on success, -1 on failure */ 1003 int vmstate_register_with_alias_id(DeviceState *dev, int instance_id, 1004 const VMStateDescription *vmsd, 1005 void *base, int alias_id, 1006 int required_for_version, 1007 Error **errp); 1008 1009 /* Returns: 0 on success, -1 on failure */ 1010 static inline int vmstate_register(DeviceState *dev, int instance_id, 1011 const VMStateDescription *vmsd, 1012 void *opaque) 1013 { 1014 return vmstate_register_with_alias_id(dev, instance_id, vmsd, 1015 opaque, -1, 0, NULL); 1016 } 1017 1018 void vmstate_unregister(DeviceState *dev, const VMStateDescription *vmsd, 1019 void *opaque); 1020 1021 struct MemoryRegion; 1022 void vmstate_register_ram(struct MemoryRegion *memory, DeviceState *dev); 1023 void vmstate_unregister_ram(struct MemoryRegion *memory, DeviceState *dev); 1024 void vmstate_register_ram_global(struct MemoryRegion *memory); 1025 1026 bool vmstate_check_only_migratable(const VMStateDescription *vmsd); 1027 1028 #endif 1029