include/migration/vmstate.h

   1 /*
   2  * QEMU migration/snapshot declarations
   3  *
   4  * Copyright (c) 2009-2011 Red Hat, Inc.
   5  *
   6  * Original author: Juan Quintela <quintela@redhat.com>
   7  *
   8  * Permission is hereby granted, free of charge, to any person obtaining a copy
   9  * of this software and associated documentation files (the "Software"), to deal
  10  * in the Software without restriction, including without limitation the rights
  11  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  12  * copies of the Software, and to permit persons to whom the Software is
  13  * furnished to do so, subject to the following conditions:
  14  *
  15  * The above copyright notice and this permission notice shall be included in
  16  * all copies or substantial portions of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  21  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  22  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  23  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  24  * THE SOFTWARE.
  25  */
  26 #ifndef QEMU_VMSTATE_H
  27 #define QEMU_VMSTATE_H 1
  28
  29 typedef void SaveStateHandler(QEMUFile *f, void *opaque);
  30 typedef int LoadStateHandler(QEMUFile *f, void *opaque, int version_id);
  31
  32 typedef struct SaveVMHandlers {
  33     void (*set_params)(const MigrationParams *params, void * opaque);
  34     SaveStateHandler *save_state;
  35     int (*save_live_setup)(QEMUFile *f, void *opaque);
  36     int (*save_live_iterate)(QEMUFile *f, void *opaque);
  37     int (*save_live_complete)(QEMUFile *f, void *opaque);
  38     uint64_t (*save_live_pending)(QEMUFile *f, void *opaque, uint64_t max_size);
  39     void (*cancel)(void *opaque);
  40     LoadStateHandler *load_state;
  41     bool (*is_active)(void *opaque);
  42 } SaveVMHandlers;
  43
  44 int register_savevm(DeviceState *dev,
  45                     const char *idstr,
  46                     int instance_id,
  47                     int version_id,
  48                     SaveStateHandler *save_state,
  49                     LoadStateHandler *load_state,
  50                     void *opaque);
  51
  52 int register_savevm_live(DeviceState *dev,
  53                          const char *idstr,
  54                          int instance_id,
  55                          int version_id,
  56                          SaveVMHandlers *ops,
  57                          void *opaque);
  58
  59 void unregister_savevm(DeviceState *dev, const char *idstr, void *opaque);
  60 void register_device_unmigratable(DeviceState *dev, const char *idstr,
  61                                                                 void *opaque);
  62
  63
  64 typedef struct VMStateInfo VMStateInfo;
  65 typedef struct VMStateDescription VMStateDescription;
  66
  67 struct VMStateInfo {
  68     const char *name;
  69     int (*get)(QEMUFile *f, void *pv, size_t size);
  70     void (*put)(QEMUFile *f, void *pv, size_t size);
  71 };
  72
  73 enum VMStateFlags {
  74     VMS_SINGLE           = 0x001,
  75     VMS_POINTER          = 0x002,
  76     VMS_ARRAY            = 0x004,
  77     VMS_STRUCT           = 0x008,
  78     VMS_VARRAY_INT32     = 0x010,  /* Array with size in int32_t field*/
  79     VMS_BUFFER           = 0x020,  /* static sized buffer */
  80     VMS_ARRAY_OF_POINTER = 0x040,
  81     VMS_VARRAY_UINT16    = 0x080,  /* Array with size in uint16_t field */
  82     VMS_VBUFFER          = 0x100,  /* Buffer with size in int32_t field */
  83     VMS_MULTIPLY         = 0x200,  /* multiply "size" field by field_size */
  84     VMS_VARRAY_UINT8     = 0x400,  /* Array with size in uint8_t field*/
  85     VMS_VARRAY_UINT32    = 0x800,  /* Array with size in uint32_t field*/
  86 };
  87
  88 typedef struct {
  89     const char *name;
  90     size_t offset;
  91     size_t size;
  92     size_t start;
  93     int num;
  94     size_t num_offset;
  95     size_t size_offset;
  96     const VMStateInfo *info;
  97     enum VMStateFlags flags;
  98     const VMStateDescription *vmsd;
  99     int version_id;
 100     bool (*field_exists)(void *opaque, int version_id);
 101 } VMStateField;
 102
 103 typedef struct VMStateSubsection {
 104     const VMStateDescription *vmsd;
 105     bool (*needed)(void *opaque);
 106 } VMStateSubsection;
 107
 108 struct VMStateDescription {
 109     const char *name;
 110     int unmigratable;
 111     int version_id;
 112     int minimum_version_id;
 113     int minimum_version_id_old;
 114     LoadStateHandler *load_state_old;
 115     int (*pre_load)(void *opaque);
 116     int (*post_load)(void *opaque, int version_id);
 117     void (*pre_save)(void *opaque);
 118     VMStateField *fields;
 119     const VMStateSubsection *subsections;
 120 };
 121
 122 extern const VMStateInfo vmstate_info_bool;
 123
 124 extern const VMStateInfo vmstate_info_int8;
 125 extern const VMStateInfo vmstate_info_int16;
 126 extern const VMStateInfo vmstate_info_int32;
 127 extern const VMStateInfo vmstate_info_int64;
 128
 129 extern const VMStateInfo vmstate_info_uint8_equal;
 130 extern const VMStateInfo vmstate_info_uint16_equal;
 131 extern const VMStateInfo vmstate_info_int32_equal;
 132 extern const VMStateInfo vmstate_info_uint32_equal;
 133 extern const VMStateInfo vmstate_info_int32_le;
 134
 135 extern const VMStateInfo vmstate_info_uint8;
 136 extern const VMStateInfo vmstate_info_uint16;
 137 extern const VMStateInfo vmstate_info_uint32;
 138 extern const VMStateInfo vmstate_info_uint64;
 139
 140 extern const VMStateInfo vmstate_info_timer;
 141 extern const VMStateInfo vmstate_info_buffer;
 142 extern const VMStateInfo vmstate_info_unused_buffer;
 143 extern const VMStateInfo vmstate_info_bitmap;
 144
 145 #define type_check_array(t1,t2,n) ((t1(*)[n])0 - (t2*)0)
 146 #define type_check_pointer(t1,t2) ((t1**)0 - (t2*)0)
 147
 148 #define vmstate_offset_value(_state, _field, _type)                  \
 149     (offsetof(_state, _field) +                                      \
 150      type_check(_type, typeof_field(_state, _field)))
 151
 152 #define vmstate_offset_pointer(_state, _field, _type)                \
 153     (offsetof(_state, _field) +                                      \
 154      type_check_pointer(_type, typeof_field(_state, _field)))
 155
 156 #define vmstate_offset_array(_state, _field, _type, _num)            \
 157     (offsetof(_state, _field) +                                      \
 158      type_check_array(_type, typeof_field(_state, _field), _num))
 159
 160 #define vmstate_offset_sub_array(_state, _field, _type, _start)      \
 161     (offsetof(_state, _field[_start]))
 162
 163 #define vmstate_offset_buffer(_state, _field)                        \
 164     vmstate_offset_array(_state, _field, uint8_t,                    \
 165                          sizeof(typeof_field(_state, _field)))
 166
 167 #define VMSTATE_SINGLE_TEST(_field, _state, _test, _version, _info, _type) { \
 168     .name         = (stringify(_field)),                             \
 169     .version_id   = (_version),                                      \
 170     .field_exists = (_test),                                         \
 171     .size         = sizeof(_type),                                   \
 172     .info         = &(_info),                                        \
 173     .flags        = VMS_SINGLE,                                      \
 174     .offset       = vmstate_offset_value(_state, _field, _type),     \
 175 }
 176
 177 #define VMSTATE_POINTER(_field, _state, _version, _info, _type) {    \
 178     .name       = (stringify(_field)),                               \
 179     .version_id = (_version),                                        \
 180     .info       = &(_info),                                          \
 181     .size       = sizeof(_type),                                     \
 182     .flags      = VMS_SINGLE|VMS_POINTER,                            \
 183     .offset     = vmstate_offset_value(_state, _field, _type),       \
 184 }
 185
 186 #define VMSTATE_POINTER_TEST(_field, _state, _test, _info, _type) {  \
 187     .name       = (stringify(_field)),                               \
 188     .info       = &(_info),                                          \
 189     .field_exists = (_test),                                         \
 190     .size       = sizeof(_type),                                     \
 191     .flags      = VMS_SINGLE|VMS_POINTER,                            \
 192     .offset     = vmstate_offset_value(_state, _field, _type),       \
 193 }
 194
 195 #define VMSTATE_ARRAY(_field, _state, _num, _version, _info, _type) {\
 196     .name       = (stringify(_field)),                               \
 197     .version_id = (_version),                                        \
 198     .num        = (_num),                                            \
 199     .info       = &(_info),                                          \
 200     .size       = sizeof(_type),                                     \
 201     .flags      = VMS_ARRAY,                                         \
 202     .offset     = vmstate_offset_array(_state, _field, _type, _num), \
 203 }
 204
 205 #define VMSTATE_ARRAY_TEST(_field, _state, _num, _test, _info, _type) {\
 206     .name         = (stringify(_field)),                              \
 207     .field_exists = (_test),                                          \
 208     .num          = (_num),                                           \
 209     .info         = &(_info),                                         \
 210     .size         = sizeof(_type),                                    \
 211     .flags        = VMS_ARRAY,                                        \
 212     .offset       = vmstate_offset_array(_state, _field, _type, _num),\
 213 }
 214
 215 #define VMSTATE_SUB_ARRAY(_field, _state, _start, _num, _version, _info, _type) { \
 216     .name       = (stringify(_field)),                               \
 217     .version_id = (_version),                                        \
 218     .num        = (_num),                                            \
 219     .info       = &(_info),                                          \
 220     .size       = sizeof(_type),                                     \
 221     .flags      = VMS_ARRAY,                                         \
 222     .offset     = vmstate_offset_sub_array(_state, _field, _type, _start), \
 223 }
 224
 225 #define VMSTATE_ARRAY_INT32_UNSAFE(_field, _state, _field_num, _info, _type) {\
 226     .name       = (stringify(_field)),                               \
 227     .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \
 228     .info       = &(_info),                                          \
 229     .size       = sizeof(_type),                                     \
 230     .flags      = VMS_VARRAY_INT32,                                  \
 231     .offset     = offsetof(_state, _field),                          \
 232 }
 233
 234 #define VMSTATE_VARRAY_INT32(_field, _state, _field_num, _version, _info, _type) {\
 235     .name       = (stringify(_field)),                               \
 236     .version_id = (_version),                                        \
 237     .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \
 238     .info       = &(_info),                                          \
 239     .size       = sizeof(_type),                                     \
 240     .flags      = VMS_VARRAY_INT32|VMS_POINTER,                      \
 241     .offset     = vmstate_offset_pointer(_state, _field, _type),     \
 242 }
 243
 244 #define VMSTATE_VARRAY_UINT32(_field, _state, _field_num, _version, _info, _type) {\
 245     .name       = (stringify(_field)),                               \
 246     .version_id = (_version),                                        \
 247     .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\
 248     .info       = &(_info),                                          \
 249     .size       = sizeof(_type),                                     \
 250     .flags      = VMS_VARRAY_UINT32|VMS_POINTER,                     \
 251     .offset     = vmstate_offset_pointer(_state, _field, _type),     \
 252 }
 253
 254 #define VMSTATE_VARRAY_UINT16_UNSAFE(_field, _state, _field_num, _version, _info, _type) {\
 255     .name       = (stringify(_field)),                               \
 256     .version_id = (_version),                                        \
 257     .num_offset = vmstate_offset_value(_state, _field_num, uint16_t),\
 258     .info       = &(_info),                                          \
 259     .size       = sizeof(_type),                                     \
 260     .flags      = VMS_VARRAY_UINT16,                                 \
 261     .offset     = offsetof(_state, _field),                          \
 262 }
 263
 264 #define VMSTATE_STRUCT_TEST(_field, _state, _test, _version, _vmsd, _type) { \
 265     .name         = (stringify(_field)),                             \
 266     .version_id   = (_version),                                      \
 267     .field_exists = (_test),                                         \
 268     .vmsd         = &(_vmsd),                                        \
 269     .size         = sizeof(_type),                                   \
 270     .flags        = VMS_STRUCT,                                      \
 271     .offset       = vmstate_offset_value(_state, _field, _type),     \
 272 }
 273
 274 #define VMSTATE_STRUCT_POINTER_TEST(_field, _state, _test, _vmsd, _type) { \
 275     .name         = (stringify(_field)),                             \
 276     .field_exists = (_test),                                         \
 277     .vmsd         = &(_vmsd),                                        \
 278     .size         = sizeof(_type),                                   \
 279     .flags        = VMS_STRUCT|VMS_POINTER,                          \
 280     .offset       = vmstate_offset_value(_state, _field, _type),     \
 281 }
 282
 283 #define VMSTATE_ARRAY_OF_POINTER(_field, _state, _num, _version, _info, _type) {\
 284     .name       = (stringify(_field)),                               \
 285     .version_id = (_version),                                        \
 286     .num        = (_num),                                            \
 287     .info       = &(_info),                                          \
 288     .size       = sizeof(_type),                                     \
 289     .flags      = VMS_ARRAY|VMS_ARRAY_OF_POINTER,                    \
 290     .offset     = vmstate_offset_array(_state, _field, _type, _num), \
 291 }
 292
 293 #define VMSTATE_STRUCT_ARRAY_TEST(_field, _state, _num, _test, _version, _vmsd, _type) { \
 294     .name         = (stringify(_field)),                             \
 295     .num          = (_num),                                          \
 296     .field_exists = (_test),                                         \
 297     .version_id   = (_version),                                      \
 298     .vmsd         = &(_vmsd),                                        \
 299     .size         = sizeof(_type),                                   \
 300     .flags        = VMS_STRUCT|VMS_ARRAY,                            \
 301     .offset       = vmstate_offset_array(_state, _field, _type, _num),\
 302 }
 303
 304 #define VMSTATE_STRUCT_VARRAY_UINT8(_field, _state, _field_num, _version, _vmsd, _type) { \
 305     .name       = (stringify(_field)),                               \
 306     .num_offset = vmstate_offset_value(_state, _field_num, uint8_t), \
 307     .version_id = (_version),                                        \
 308     .vmsd       = &(_vmsd),                                          \
 309     .size       = sizeof(_type),                                     \
 310     .flags      = VMS_STRUCT|VMS_VARRAY_UINT8,                       \
 311     .offset     = offsetof(_state, _field),                          \
 312 }
 313
 314 #define VMSTATE_STRUCT_VARRAY_POINTER_INT32(_field, _state, _field_num, _vmsd, _type) { \
 315     .name       = (stringify(_field)),                               \
 316     .version_id = 0,                                                 \
 317     .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \
 318     .size       = sizeof(_type),                                     \
 319     .vmsd       = &(_vmsd),                                          \
 320     .flags      = VMS_POINTER | VMS_VARRAY_INT32 | VMS_STRUCT,       \
 321     .offset     = vmstate_offset_pointer(_state, _field, _type),     \
 322 }
 323
 324 #define VMSTATE_STRUCT_VARRAY_POINTER_UINT16(_field, _state, _field_num, _vmsd, _type) { \
 325     .name       = (stringify(_field)),                               \
 326     .version_id = 0,                                                 \
 327     .num_offset = vmstate_offset_value(_state, _field_num, uint16_t),\
 328     .size       = sizeof(_type),                                     \
 329     .vmsd       = &(_vmsd),                                          \
 330     .flags      = VMS_POINTER | VMS_VARRAY_UINT16 | VMS_STRUCT,      \
 331     .offset     = vmstate_offset_pointer(_state, _field, _type),     \
 332 }
 333
 334 #define VMSTATE_STRUCT_VARRAY_INT32(_field, _state, _field_num, _version, _vmsd, _type) { \
 335     .name       = (stringify(_field)),                               \
 336     .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \
 337     .version_id = (_version),                                        \
 338     .vmsd       = &(_vmsd),                                          \
 339     .size       = sizeof(_type),                                     \
 340     .flags      = VMS_STRUCT|VMS_VARRAY_INT32,                       \
 341     .offset     = offsetof(_state, _field),                          \
 342 }
 343
 344 #define VMSTATE_STRUCT_VARRAY_UINT32(_field, _state, _field_num, _version, _vmsd, _type) { \
 345     .name       = (stringify(_field)),                               \
 346     .num_offset = vmstate_offset_value(_state, _field_num, uint32_t), \
 347     .version_id = (_version),                                        \
 348     .vmsd       = &(_vmsd),                                          \
 349     .size       = sizeof(_type),                                     \
 350     .flags      = VMS_STRUCT|VMS_VARRAY_UINT32,                      \
 351     .offset     = offsetof(_state, _field),                          \
 352 }
 353
 354 #define VMSTATE_STATIC_BUFFER(_field, _state, _version, _test, _start, _size) { \
 355     .name         = (stringify(_field)),                             \
 356     .version_id   = (_version),                                      \
 357     .field_exists = (_test),                                         \
 358     .size         = (_size - _start),                                \
 359     .info         = &vmstate_info_buffer,                            \
 360     .flags        = VMS_BUFFER,                                      \
 361     .offset       = vmstate_offset_buffer(_state, _field) + _start,  \
 362 }
 363
 364 #define VMSTATE_BUFFER_MULTIPLY(_field, _state, _version, _test, _start, _field_size, _multiply) { \
 365     .name         = (stringify(_field)),                             \
 366     .version_id   = (_version),                                      \
 367     .field_exists = (_test),                                         \
 368     .size_offset  = vmstate_offset_value(_state, _field_size, uint32_t),\
 369     .size         = (_multiply),                                      \
 370     .info         = &vmstate_info_buffer,                            \
 371     .flags        = VMS_VBUFFER|VMS_MULTIPLY,                        \
 372     .offset       = offsetof(_state, _field),                        \
 373     .start        = (_start),                                        \
 374 }
 375
 376 #define VMSTATE_VBUFFER(_field, _state, _version, _test, _start, _field_size) { \
 377     .name         = (stringify(_field)),                             \
 378     .version_id   = (_version),                                      \
 379     .field_exists = (_test),                                         \
 380     .size_offset  = vmstate_offset_value(_state, _field_size, int32_t),\
 381     .info         = &vmstate_info_buffer,                            \
 382     .flags        = VMS_VBUFFER|VMS_POINTER,                         \
 383     .offset       = offsetof(_state, _field),                        \
 384     .start        = (_start),                                        \
 385 }
 386
 387 #define VMSTATE_VBUFFER_UINT32(_field, _state, _version, _test, _start, _field_size) { \
 388     .name         = (stringify(_field)),                             \
 389     .version_id   = (_version),                                      \
 390     .field_exists = (_test),                                         \
 391     .size_offset  = vmstate_offset_value(_state, _field_size, uint32_t),\
 392     .info         = &vmstate_info_buffer,                            \
 393     .flags        = VMS_VBUFFER|VMS_POINTER,                         \
 394     .offset       = offsetof(_state, _field),                        \
 395     .start        = (_start),                                        \
 396 }
 397
 398 #define VMSTATE_BUFFER_UNSAFE_INFO(_field, _state, _version, _info, _size) { \
 399     .name       = (stringify(_field)),                               \
 400     .version_id = (_version),                                        \
 401     .size       = (_size),                                           \
 402     .info       = &(_info),                                          \
 403     .flags      = VMS_BUFFER,                                        \
 404     .offset     = offsetof(_state, _field),                          \
 405 }
 406
 407 #define VMSTATE_UNUSED_BUFFER(_test, _version, _size) {              \
 408     .name         = "unused",                                        \
 409     .field_exists = (_test),                                         \
 410     .version_id   = (_version),                                      \
 411     .size         = (_size),                                         \
 412     .info         = &vmstate_info_unused_buffer,                     \
 413     .flags        = VMS_BUFFER,                                      \
 414 }
 415
 416 /* _field_size should be a int32_t field in the _state struct giving the
 417  * size of the bitmap _field in bits.
 418  */
 419 #define VMSTATE_BITMAP(_field, _state, _version, _field_size) {      \
 420     .name         = (stringify(_field)),                             \
 421     .version_id   = (_version),                                      \
 422     .size_offset  = vmstate_offset_value(_state, _field_size, int32_t),\
 423     .info         = &vmstate_info_bitmap,                            \
 424     .flags        = VMS_VBUFFER|VMS_POINTER,                         \
 425     .offset       = offsetof(_state, _field),                        \
 426 }
 427
 428 /* _f : field name
 429    _f_n : num of elements field_name
 430    _n : num of elements
 431    _s : struct state name
 432    _v : version
 433 */
 434
 435 #define VMSTATE_SINGLE(_field, _state, _version, _info, _type)        \
 436     VMSTATE_SINGLE_TEST(_field, _state, NULL, _version, _info, _type)
 437
 438 #define VMSTATE_STRUCT(_field, _state, _version, _vmsd, _type)        \
 439     VMSTATE_STRUCT_TEST(_field, _state, NULL, _version, _vmsd, _type)
 440
 441 #define VMSTATE_STRUCT_POINTER(_field, _state, _vmsd, _type)          \
 442     VMSTATE_STRUCT_POINTER_TEST(_field, _state, NULL, _vmsd, _type)
 443
 444 #define VMSTATE_STRUCT_ARRAY(_field, _state, _num, _version, _vmsd, _type) \
 445     VMSTATE_STRUCT_ARRAY_TEST(_field, _state, _num, NULL, _version,   \
 446             _vmsd, _type)
 447
 448 #define VMSTATE_BOOL_V(_f, _s, _v)                                    \
 449     VMSTATE_SINGLE(_f, _s, _v, vmstate_info_bool, bool)
 450
 451 #define VMSTATE_INT8_V(_f, _s, _v)                                    \
 452     VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int8, int8_t)
 453 #define VMSTATE_INT16_V(_f, _s, _v)                                   \
 454     VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int16, int16_t)
 455 #define VMSTATE_INT32_V(_f, _s, _v)                                   \
 456     VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int32, int32_t)
 457 #define VMSTATE_INT64_V(_f, _s, _v)                                   \
 458     VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int64, int64_t)
 459
 460 #define VMSTATE_UINT8_V(_f, _s, _v)                                   \
 461     VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint8, uint8_t)
 462 #define VMSTATE_UINT16_V(_f, _s, _v)                                  \
 463     VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint16, uint16_t)
 464 #define VMSTATE_UINT32_V(_f, _s, _v)                                  \
 465     VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint32, uint32_t)
 466 #define VMSTATE_UINT64_V(_f, _s, _v)                                  \
 467     VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint64, uint64_t)
 468
 469 #define VMSTATE_BOOL(_f, _s)                                          \
 470     VMSTATE_BOOL_V(_f, _s, 0)
 471
 472 #define VMSTATE_INT8(_f, _s)                                          \
 473     VMSTATE_INT8_V(_f, _s, 0)
 474 #define VMSTATE_INT16(_f, _s)                                         \
 475     VMSTATE_INT16_V(_f, _s, 0)
 476 #define VMSTATE_INT32(_f, _s)                                         \
 477     VMSTATE_INT32_V(_f, _s, 0)
 478 #define VMSTATE_INT64(_f, _s)                                         \
 479     VMSTATE_INT64_V(_f, _s, 0)
 480
 481 #define VMSTATE_UINT8(_f, _s)                                         \
 482     VMSTATE_UINT8_V(_f, _s, 0)
 483 #define VMSTATE_UINT16(_f, _s)                                        \
 484     VMSTATE_UINT16_V(_f, _s, 0)
 485 #define VMSTATE_UINT32(_f, _s)                                        \
 486     VMSTATE_UINT32_V(_f, _s, 0)
 487 #define VMSTATE_UINT64(_f, _s)                                        \
 488     VMSTATE_UINT64_V(_f, _s, 0)
 489
 490 #define VMSTATE_UINT8_EQUAL(_f, _s)                                   \
 491     VMSTATE_SINGLE(_f, _s, 0, vmstate_info_uint8_equal, uint8_t)
 492
 493 #define VMSTATE_UINT16_EQUAL(_f, _s)                                  \
 494     VMSTATE_SINGLE(_f, _s, 0, vmstate_info_uint16_equal, uint16_t)
 495
 496 #define VMSTATE_UINT16_EQUAL_V(_f, _s, _v)                            \
 497     VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint16_equal, uint16_t)
 498
 499 #define VMSTATE_INT32_EQUAL(_f, _s)                                   \
 500     VMSTATE_SINGLE(_f, _s, 0, vmstate_info_int32_equal, int32_t)
 501
 502 #define VMSTATE_UINT32_EQUAL(_f, _s)                                   \
 503     VMSTATE_SINGLE(_f, _s, 0, vmstate_info_uint32_equal, uint32_t)
 504
 505 #define VMSTATE_INT32_LE(_f, _s)                                   \
 506     VMSTATE_SINGLE(_f, _s, 0, vmstate_info_int32_le, int32_t)
 507
 508 #define VMSTATE_UINT8_TEST(_f, _s, _t)                               \
 509     VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint8, uint8_t)
 510
 511 #define VMSTATE_UINT16_TEST(_f, _s, _t)                               \
 512     VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint16, uint16_t)
 513
 514 #define VMSTATE_UINT32_TEST(_f, _s, _t)                                  \
 515     VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint32, uint32_t)
 516
 517 #define VMSTATE_TIMER_TEST(_f, _s, _test)                             \
 518     VMSTATE_POINTER_TEST(_f, _s, _test, vmstate_info_timer, QEMUTimer *)
 519
 520 #define VMSTATE_TIMER_V(_f, _s, _v)                                   \
 521     VMSTATE_POINTER(_f, _s, _v, vmstate_info_timer, QEMUTimer *)
 522
 523 #define VMSTATE_TIMER(_f, _s)                                         \
 524     VMSTATE_TIMER_V(_f, _s, 0)
 525
 526 #define VMSTATE_TIMER_ARRAY(_f, _s, _n)                              \
 527     VMSTATE_ARRAY_OF_POINTER(_f, _s, _n, 0, vmstate_info_timer, QEMUTimer *)
 528
 529 #define VMSTATE_BOOL_ARRAY_V(_f, _s, _n, _v)                         \
 530     VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_bool, bool)
 531
 532 #define VMSTATE_BOOL_ARRAY(_f, _s, _n)                               \
 533     VMSTATE_BOOL_ARRAY_V(_f, _s, _n, 0)
 534
 535 #define VMSTATE_UINT16_ARRAY_V(_f, _s, _n, _v)                         \
 536     VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint16, uint16_t)
 537
 538 #define VMSTATE_UINT16_ARRAY(_f, _s, _n)                               \
 539     VMSTATE_UINT16_ARRAY_V(_f, _s, _n, 0)
 540
 541 #define VMSTATE_UINT8_ARRAY_V(_f, _s, _n, _v)                         \
 542     VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint8, uint8_t)
 543
 544 #define VMSTATE_UINT8_ARRAY(_f, _s, _n)                               \
 545     VMSTATE_UINT8_ARRAY_V(_f, _s, _n, 0)
 546
 547 #define VMSTATE_UINT32_ARRAY_V(_f, _s, _n, _v)                        \
 548     VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint32, uint32_t)
 549
 550 #define VMSTATE_UINT32_ARRAY(_f, _s, _n)                              \
 551     VMSTATE_UINT32_ARRAY_V(_f, _s, _n, 0)
 552
 553 #define VMSTATE_UINT64_ARRAY_V(_f, _s, _n, _v)                        \
 554     VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint64, uint64_t)
 555
 556 #define VMSTATE_UINT64_ARRAY(_f, _s, _n)                              \
 557     VMSTATE_UINT64_ARRAY_V(_f, _s, _n, 0)
 558
 559 #define VMSTATE_INT16_ARRAY_V(_f, _s, _n, _v)                         \
 560     VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int16, int16_t)
 561
 562 #define VMSTATE_INT16_ARRAY(_f, _s, _n)                               \
 563     VMSTATE_INT16_ARRAY_V(_f, _s, _n, 0)
 564
 565 #define VMSTATE_INT32_ARRAY_V(_f, _s, _n, _v)                         \
 566     VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int32, int32_t)
 567
 568 #define VMSTATE_INT32_ARRAY(_f, _s, _n)                               \
 569     VMSTATE_INT32_ARRAY_V(_f, _s, _n, 0)
 570
 571 #define VMSTATE_UINT32_SUB_ARRAY(_f, _s, _start, _num)                \
 572     VMSTATE_SUB_ARRAY(_f, _s, _start, _num, 0, vmstate_info_uint32, uint32_t)
 573
 574 #define VMSTATE_UINT32_ARRAY(_f, _s, _n)                              \
 575     VMSTATE_UINT32_ARRAY_V(_f, _s, _n, 0)
 576
 577 #define VMSTATE_INT64_ARRAY_V(_f, _s, _n, _v)                         \
 578     VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int64, int64_t)
 579
 580 #define VMSTATE_INT64_ARRAY(_f, _s, _n)                               \
 581     VMSTATE_INT64_ARRAY_V(_f, _s, _n, 0)
 582
 583 #define VMSTATE_BUFFER_V(_f, _s, _v)                                  \
 584     VMSTATE_STATIC_BUFFER(_f, _s, _v, NULL, 0, sizeof(typeof_field(_s, _f)))
 585
 586 #define VMSTATE_BUFFER(_f, _s)                                        \
 587     VMSTATE_BUFFER_V(_f, _s, 0)
 588
 589 #define VMSTATE_PARTIAL_BUFFER(_f, _s, _size)                         \
 590     VMSTATE_STATIC_BUFFER(_f, _s, 0, NULL, 0, _size)
 591
 592 #define VMSTATE_BUFFER_START_MIDDLE(_f, _s, _start) \
 593     VMSTATE_STATIC_BUFFER(_f, _s, 0, NULL, _start, sizeof(typeof_field(_s, _f)))
 594
 595 #define VMSTATE_PARTIAL_VBUFFER(_f, _s, _size)                        \
 596     VMSTATE_VBUFFER(_f, _s, 0, NULL, 0, _size)
 597
 598 #define VMSTATE_PARTIAL_VBUFFER_UINT32(_f, _s, _size)                        \
 599     VMSTATE_VBUFFER_UINT32(_f, _s, 0, NULL, 0, _size)
 600
 601 #define VMSTATE_SUB_VBUFFER(_f, _s, _start, _size)                    \
 602     VMSTATE_VBUFFER(_f, _s, 0, NULL, _start, _size)
 603
 604 #define VMSTATE_BUFFER_TEST(_f, _s, _test)                            \
 605     VMSTATE_STATIC_BUFFER(_f, _s, 0, _test, 0, sizeof(typeof_field(_s, _f)))
 606
 607 #define VMSTATE_BUFFER_UNSAFE(_field, _state, _version, _size)        \
 608     VMSTATE_BUFFER_UNSAFE_INFO(_field, _state, _version, vmstate_info_buffer, _size)
 609
 610 #define VMSTATE_UNUSED_V(_v, _size)                                   \
 611     VMSTATE_UNUSED_BUFFER(NULL, _v, _size)
 612
 613 #define VMSTATE_UNUSED(_size)                                         \
 614     VMSTATE_UNUSED_V(0, _size)
 615
 616 #define VMSTATE_UNUSED_TEST(_test, _size)                             \
 617     VMSTATE_UNUSED_BUFFER(_test, 0, _size)
 618
 619 #define VMSTATE_END_OF_LIST()                                         \
 620     {}
 621
 622 int vmstate_load_state(QEMUFile *f, const VMStateDescription *vmsd,
 623                        void *opaque, int version_id);
 624 void vmstate_save_state(QEMUFile *f, const VMStateDescription *vmsd,
 625                         void *opaque);
 626 int vmstate_register(DeviceState *dev, int instance_id,
 627                      const VMStateDescription *vmsd, void *base);
 628 int vmstate_register_with_alias_id(DeviceState *dev, int instance_id,
 629                                    const VMStateDescription *vmsd,
 630                                    void *base, int alias_id,
 631                                    int required_for_version);
 632 void vmstate_unregister(DeviceState *dev, const VMStateDescription *vmsd,
 633                         void *opaque);
 634
 635 struct MemoryRegion;
 636 void vmstate_register_ram(struct MemoryRegion *memory, DeviceState *dev);
 637 void vmstate_unregister_ram(struct MemoryRegion *memory, DeviceState *dev);
 638 void vmstate_register_ram_global(struct MemoryRegion *memory);
 639
 640 #endif