qemu/include/migration/vmstate.h
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   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
  29typedef void SaveStateHandler(QEMUFile *f, void *opaque);
  30typedef int LoadStateHandler(QEMUFile *f, void *opaque, int version_id);
  31
  32typedef 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
  44int 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
  52int register_savevm_live(DeviceState *dev,
  53                         const char *idstr,
  54                         int instance_id,
  55                         int version_id,
  56                         SaveVMHandlers *ops,
  57                         void *opaque);
  58
  59void unregister_savevm(DeviceState *dev, const char *idstr, void *opaque);
  60void register_device_unmigratable(DeviceState *dev, const char *idstr,
  61                                                                void *opaque);
  62
  63
  64typedef struct VMStateInfo VMStateInfo;
  65typedef struct VMStateDescription VMStateDescription;
  66
  67struct 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
  73enum 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
  88typedef 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
 103typedef struct VMStateSubsection {
 104    const VMStateDescription *vmsd;
 105    bool (*needed)(void *opaque);
 106} VMStateSubsection;
 107
 108struct 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
 122extern const VMStateInfo vmstate_info_bool;
 123
 124extern const VMStateInfo vmstate_info_int8;
 125extern const VMStateInfo vmstate_info_int16;
 126extern const VMStateInfo vmstate_info_int32;
 127extern const VMStateInfo vmstate_info_int64;
 128
 129extern const VMStateInfo vmstate_info_uint8_equal;
 130extern const VMStateInfo vmstate_info_uint16_equal;
 131extern const VMStateInfo vmstate_info_int32_equal;
 132extern const VMStateInfo vmstate_info_uint32_equal;
 133extern const VMStateInfo vmstate_info_int32_le;
 134
 135extern const VMStateInfo vmstate_info_uint8;
 136extern const VMStateInfo vmstate_info_uint16;
 137extern const VMStateInfo vmstate_info_uint32;
 138extern const VMStateInfo vmstate_info_uint64;
 139
 140extern const VMStateInfo vmstate_info_timer;
 141extern const VMStateInfo vmstate_info_buffer;
 142extern const VMStateInfo vmstate_info_unused_buffer;
 143extern 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
 622int vmstate_load_state(QEMUFile *f, const VMStateDescription *vmsd,
 623                       void *opaque, int version_id);
 624void vmstate_save_state(QEMUFile *f, const VMStateDescription *vmsd,
 625                        void *opaque);
 626int vmstate_register(DeviceState *dev, int instance_id,
 627                     const VMStateDescription *vmsd, void *base);
 628int 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);
 632void vmstate_unregister(DeviceState *dev, const VMStateDescription *vmsd,
 633                        void *opaque);
 634
 635struct MemoryRegion;
 636void vmstate_register_ram(struct MemoryRegion *memory, DeviceState *dev);
 637void vmstate_unregister_ram(struct MemoryRegion *memory, DeviceState *dev);
 638void vmstate_register_ram_global(struct MemoryRegion *memory);
 639
 640#endif
 641