hw/hw.h

   1 /* Declarations for use by hardware emulation.  */
   2 #ifndef QEMU_HW_H
   3 #define QEMU_HW_H
   4
   5 #include "qemu-common.h"
   6
   7 #if defined(TARGET_PHYS_ADDR_BITS) && !defined(NEED_CPU_H)
   8 #include "cpu-common.h"
   9 #endif
  10
  11 #include "ioport.h"
  12 #include "irq.h"
  13
  14 /* VM Load/Save */
  15
  16 /* This function writes a chunk of data to a file at the given position.
  17  * The pos argument can be ignored if the file is only being used for
  18  * streaming.  The handler should try to write all of the data it can.
  19  */
  20 typedef int (QEMUFilePutBufferFunc)(void *opaque, const uint8_t *buf,
  21                                     int64_t pos, int size);
  22
  23 /* Read a chunk of data from a file at the given position.  The pos argument
  24  * can be ignored if the file is only be used for streaming.  The number of
  25  * bytes actually read should be returned.
  26  */
  27 typedef int (QEMUFileGetBufferFunc)(void *opaque, uint8_t *buf,
  28                                     int64_t pos, int size);
  29
  30 /* Close a file and return an error code */
  31 typedef int (QEMUFileCloseFunc)(void *opaque);
  32
  33 /* Called to determine if the file has exceeded it's bandwidth allocation.  The
  34  * bandwidth capping is a soft limit, not a hard limit.
  35  */
  36 typedef int (QEMUFileRateLimit)(void *opaque);
  37
  38 /* Called to change the current bandwidth allocation. This function must return
  39  * the new actual bandwidth. It should be new_rate if everything goes ok, and
  40  * the old rate otherwise
  41  */
  42 typedef int64_t (QEMUFileSetRateLimit)(void *opaque, int64_t new_rate);
  43 typedef int64_t (QEMUFileGetRateLimit)(void *opaque);
  44
  45 QEMUFile *qemu_fopen_ops(void *opaque, QEMUFilePutBufferFunc *put_buffer,
  46                          QEMUFileGetBufferFunc *get_buffer,
  47                          QEMUFileCloseFunc *close,
  48                          QEMUFileRateLimit *rate_limit,
  49                          QEMUFileSetRateLimit *set_rate_limit,
  50                          QEMUFileGetRateLimit *get_rate_limit);
  51 QEMUFile *qemu_fopen(const char *filename, const char *mode);
  52 QEMUFile *qemu_fdopen(int fd, const char *mode);
  53 QEMUFile *qemu_fopen_socket(int fd);
  54 QEMUFile *qemu_popen(FILE *popen_file, const char *mode);
  55 QEMUFile *qemu_popen_cmd(const char *command, const char *mode);
  56 int qemu_stdio_fd(QEMUFile *f);
  57 void qemu_fflush(QEMUFile *f);
  58 int qemu_fclose(QEMUFile *f);
  59 void qemu_put_buffer(QEMUFile *f, const uint8_t *buf, int size);
  60 void qemu_put_byte(QEMUFile *f, int v);
  61
  62 static inline void qemu_put_ubyte(QEMUFile *f, unsigned int v)
  63 {
  64     qemu_put_byte(f, (int)v);
  65 }
  66
  67 #define qemu_put_sbyte qemu_put_byte
  68
  69 void qemu_put_be16(QEMUFile *f, unsigned int v);
  70 void qemu_put_be32(QEMUFile *f, unsigned int v);
  71 void qemu_put_be64(QEMUFile *f, uint64_t v);
  72 int qemu_get_buffer(QEMUFile *f, uint8_t *buf, int size);
  73 int qemu_get_byte(QEMUFile *f);
  74
  75 static inline unsigned int qemu_get_ubyte(QEMUFile *f)
  76 {
  77     return (unsigned int)qemu_get_byte(f);
  78 }
  79
  80 #define qemu_get_sbyte qemu_get_byte
  81
  82 unsigned int qemu_get_be16(QEMUFile *f);
  83 unsigned int qemu_get_be32(QEMUFile *f);
  84 uint64_t qemu_get_be64(QEMUFile *f);
  85 int qemu_file_rate_limit(QEMUFile *f);
  86 int64_t qemu_file_set_rate_limit(QEMUFile *f, int64_t new_rate);
  87 int64_t qemu_file_get_rate_limit(QEMUFile *f);
  88 int qemu_file_has_error(QEMUFile *f);
  89 void qemu_file_set_error(QEMUFile *f);
  90
  91 /* Try to send any outstanding data.  This function is useful when output is
  92  * halted due to rate limiting or EAGAIN errors occur as it can be used to
  93  * resume output. */
  94 void qemu_file_put_notify(QEMUFile *f);
  95
  96 static inline void qemu_put_be64s(QEMUFile *f, const uint64_t *pv)
  97 {
  98     qemu_put_be64(f, *pv);
  99 }
 100
 101 static inline void qemu_put_be32s(QEMUFile *f, const uint32_t *pv)
 102 {
 103     qemu_put_be32(f, *pv);
 104 }
 105
 106 static inline void qemu_put_be16s(QEMUFile *f, const uint16_t *pv)
 107 {
 108     qemu_put_be16(f, *pv);
 109 }
 110
 111 static inline void qemu_put_8s(QEMUFile *f, const uint8_t *pv)
 112 {
 113     qemu_put_byte(f, *pv);
 114 }
 115
 116 static inline void qemu_get_be64s(QEMUFile *f, uint64_t *pv)
 117 {
 118     *pv = qemu_get_be64(f);
 119 }
 120
 121 static inline void qemu_get_be32s(QEMUFile *f, uint32_t *pv)
 122 {
 123     *pv = qemu_get_be32(f);
 124 }
 125
 126 static inline void qemu_get_be16s(QEMUFile *f, uint16_t *pv)
 127 {
 128     *pv = qemu_get_be16(f);
 129 }
 130
 131 static inline void qemu_get_8s(QEMUFile *f, uint8_t *pv)
 132 {
 133     *pv = qemu_get_byte(f);
 134 }
 135
 136 // Signed versions for type safety
 137 static inline void qemu_put_sbuffer(QEMUFile *f, const int8_t *buf, int size)
 138 {
 139     qemu_put_buffer(f, (const uint8_t *)buf, size);
 140 }
 141
 142 static inline void qemu_put_sbe16(QEMUFile *f, int v)
 143 {
 144     qemu_put_be16(f, (unsigned int)v);
 145 }
 146
 147 static inline void qemu_put_sbe32(QEMUFile *f, int v)
 148 {
 149     qemu_put_be32(f, (unsigned int)v);
 150 }
 151
 152 static inline void qemu_put_sbe64(QEMUFile *f, int64_t v)
 153 {
 154     qemu_put_be64(f, (uint64_t)v);
 155 }
 156
 157 static inline size_t qemu_get_sbuffer(QEMUFile *f, int8_t *buf, int size)
 158 {
 159     return qemu_get_buffer(f, (uint8_t *)buf, size);
 160 }
 161
 162 static inline int qemu_get_sbe16(QEMUFile *f)
 163 {
 164     return (int)qemu_get_be16(f);
 165 }
 166
 167 static inline int qemu_get_sbe32(QEMUFile *f)
 168 {
 169     return (int)qemu_get_be32(f);
 170 }
 171
 172 static inline int64_t qemu_get_sbe64(QEMUFile *f)
 173 {
 174     return (int64_t)qemu_get_be64(f);
 175 }
 176
 177 static inline void qemu_put_s8s(QEMUFile *f, const int8_t *pv)
 178 {
 179     qemu_put_8s(f, (const uint8_t *)pv);
 180 }
 181
 182 static inline void qemu_put_sbe16s(QEMUFile *f, const int16_t *pv)
 183 {
 184     qemu_put_be16s(f, (const uint16_t *)pv);
 185 }
 186
 187 static inline void qemu_put_sbe32s(QEMUFile *f, const int32_t *pv)
 188 {
 189     qemu_put_be32s(f, (const uint32_t *)pv);
 190 }
 191
 192 static inline void qemu_put_sbe64s(QEMUFile *f, const int64_t *pv)
 193 {
 194     qemu_put_be64s(f, (const uint64_t *)pv);
 195 }
 196
 197 static inline void qemu_get_s8s(QEMUFile *f, int8_t *pv)
 198 {
 199     qemu_get_8s(f, (uint8_t *)pv);
 200 }
 201
 202 static inline void qemu_get_sbe16s(QEMUFile *f, int16_t *pv)
 203 {
 204     qemu_get_be16s(f, (uint16_t *)pv);
 205 }
 206
 207 static inline void qemu_get_sbe32s(QEMUFile *f, int32_t *pv)
 208 {
 209     qemu_get_be32s(f, (uint32_t *)pv);
 210 }
 211
 212 static inline void qemu_get_sbe64s(QEMUFile *f, int64_t *pv)
 213 {
 214     qemu_get_be64s(f, (uint64_t *)pv);
 215 }
 216
 217 #ifdef NEED_CPU_H
 218 #if TARGET_LONG_BITS == 64
 219 #define qemu_put_betl qemu_put_be64
 220 #define qemu_get_betl qemu_get_be64
 221 #define qemu_put_betls qemu_put_be64s
 222 #define qemu_get_betls qemu_get_be64s
 223 #define qemu_put_sbetl qemu_put_sbe64
 224 #define qemu_get_sbetl qemu_get_sbe64
 225 #define qemu_put_sbetls qemu_put_sbe64s
 226 #define qemu_get_sbetls qemu_get_sbe64s
 227 #else
 228 #define qemu_put_betl qemu_put_be32
 229 #define qemu_get_betl qemu_get_be32
 230 #define qemu_put_betls qemu_put_be32s
 231 #define qemu_get_betls qemu_get_be32s
 232 #define qemu_put_sbetl qemu_put_sbe32
 233 #define qemu_get_sbetl qemu_get_sbe32
 234 #define qemu_put_sbetls qemu_put_sbe32s
 235 #define qemu_get_sbetls qemu_get_sbe32s
 236 #endif
 237 #endif
 238
 239 int64_t qemu_ftell(QEMUFile *f);
 240 int64_t qemu_fseek(QEMUFile *f, int64_t pos, int whence);
 241
 242 typedef void SaveSetParamsHandler(int blk_enable, int shared, void * opaque);
 243 typedef void SaveStateHandler(QEMUFile *f, void *opaque);
 244 typedef int SaveLiveStateHandler(Monitor *mon, QEMUFile *f, int stage,
 245                                  void *opaque);
 246 typedef int LoadStateHandler(QEMUFile *f, void *opaque, int version_id);
 247
 248 int register_savevm(DeviceState *dev,
 249                     const char *idstr,
 250                     int instance_id,
 251                     int version_id,
 252                     SaveStateHandler *save_state,
 253                     LoadStateHandler *load_state,
 254                     void *opaque);
 255
 256 int register_savevm_live(DeviceState *dev,
 257                          const char *idstr,
 258                          int instance_id,
 259                          int version_id,
 260                          SaveSetParamsHandler *set_params,
 261                          SaveLiveStateHandler *save_live_state,
 262                          SaveStateHandler *save_state,
 263                          LoadStateHandler *load_state,
 264                          void *opaque);
 265
 266 void unregister_savevm(DeviceState *dev, const char *idstr, void *opaque);
 267 void register_device_unmigratable(DeviceState *dev, const char *idstr,
 268                                                                 void *opaque);
 269
 270 typedef void QEMUResetHandler(void *opaque);
 271
 272 void qemu_register_reset(QEMUResetHandler *func, void *opaque);
 273 void qemu_unregister_reset(QEMUResetHandler *func, void *opaque);
 274
 275 /* handler to set the boot_device order for a specific type of QEMUMachine */
 276 /* return 0 if success */
 277 typedef int QEMUBootSetHandler(void *opaque, const char *boot_devices);
 278 void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque);
 279 int qemu_boot_set(const char *boot_devices);
 280
 281 typedef struct VMStateInfo VMStateInfo;
 282 typedef struct VMStateDescription VMStateDescription;
 283
 284 struct VMStateInfo {
 285     const char *name;
 286     int (*get)(QEMUFile *f, void *pv, size_t size);
 287     void (*put)(QEMUFile *f, void *pv, size_t size);
 288 };
 289
 290 enum VMStateFlags {
 291     VMS_SINGLE           = 0x001,
 292     VMS_POINTER          = 0x002,
 293     VMS_ARRAY            = 0x004,
 294     VMS_STRUCT           = 0x008,
 295     VMS_VARRAY_INT32     = 0x010,  /* Array with size in int32_t field*/
 296     VMS_BUFFER           = 0x020,  /* static sized buffer */
 297     VMS_ARRAY_OF_POINTER = 0x040,
 298     VMS_VARRAY_UINT16    = 0x080,  /* Array with size in uint16_t field */
 299     VMS_VBUFFER          = 0x100,  /* Buffer with size in int32_t field */
 300     VMS_MULTIPLY         = 0x200,  /* multiply "size" field by field_size */
 301 };
 302
 303 typedef struct {
 304     const char *name;
 305     size_t offset;
 306     size_t size;
 307     size_t start;
 308     int num;
 309     size_t num_offset;
 310     size_t size_offset;
 311     const VMStateInfo *info;
 312     enum VMStateFlags flags;
 313     const VMStateDescription *vmsd;
 314     int version_id;
 315     bool (*field_exists)(void *opaque, int version_id);
 316 } VMStateField;
 317
 318 typedef struct VMStateSubsection {
 319     const VMStateDescription *vmsd;
 320     bool (*needed)(void *opaque);
 321 } VMStateSubsection;
 322
 323 struct VMStateDescription {
 324     const char *name;
 325     int version_id;
 326     int minimum_version_id;
 327     int minimum_version_id_old;
 328     LoadStateHandler *load_state_old;
 329     int (*pre_load)(void *opaque);
 330     int (*post_load)(void *opaque, int version_id);
 331     void (*pre_save)(void *opaque);
 332     VMStateField *fields;
 333     const VMStateSubsection *subsections;
 334 };
 335
 336 extern const VMStateInfo vmstate_info_bool;
 337
 338 extern const VMStateInfo vmstate_info_int8;
 339 extern const VMStateInfo vmstate_info_int16;
 340 extern const VMStateInfo vmstate_info_int32;
 341 extern const VMStateInfo vmstate_info_int64;
 342
 343 extern const VMStateInfo vmstate_info_uint8_equal;
 344 extern const VMStateInfo vmstate_info_uint16_equal;
 345 extern const VMStateInfo vmstate_info_int32_equal;
 346 extern const VMStateInfo vmstate_info_int32_le;
 347
 348 extern const VMStateInfo vmstate_info_uint8;
 349 extern const VMStateInfo vmstate_info_uint16;
 350 extern const VMStateInfo vmstate_info_uint32;
 351 extern const VMStateInfo vmstate_info_uint64;
 352
 353 extern const VMStateInfo vmstate_info_timer;
 354 extern const VMStateInfo vmstate_info_ptimer;
 355 extern const VMStateInfo vmstate_info_buffer;
 356 extern const VMStateInfo vmstate_info_unused_buffer;
 357
 358 #define type_check_array(t1,t2,n) ((t1(*)[n])0 - (t2*)0)
 359 #define type_check_pointer(t1,t2) ((t1**)0 - (t2*)0)
 360
 361 #define vmstate_offset_value(_state, _field, _type)                  \
 362     (offsetof(_state, _field) +                                      \
 363      type_check(_type, typeof_field(_state, _field)))
 364
 365 #define vmstate_offset_pointer(_state, _field, _type)                \
 366     (offsetof(_state, _field) +                                      \
 367      type_check_pointer(_type, typeof_field(_state, _field)))
 368
 369 #define vmstate_offset_array(_state, _field, _type, _num)            \
 370     (offsetof(_state, _field) +                                      \
 371      type_check_array(_type, typeof_field(_state, _field), _num))
 372
 373 #define vmstate_offset_sub_array(_state, _field, _type, _start)      \
 374     (offsetof(_state, _field[_start]))
 375
 376 #define vmstate_offset_buffer(_state, _field)                        \
 377     vmstate_offset_array(_state, _field, uint8_t,                    \
 378                          sizeof(typeof_field(_state, _field)))
 379
 380 #define VMSTATE_SINGLE_TEST(_field, _state, _test, _version, _info, _type) { \
 381     .name         = (stringify(_field)),                             \
 382     .version_id   = (_version),                                      \
 383     .field_exists = (_test),                                         \
 384     .size         = sizeof(_type),                                   \
 385     .info         = &(_info),                                        \
 386     .flags        = VMS_SINGLE,                                      \
 387     .offset       = vmstate_offset_value(_state, _field, _type),     \
 388 }
 389
 390 #define VMSTATE_POINTER(_field, _state, _version, _info, _type) {    \
 391     .name       = (stringify(_field)),                               \
 392     .version_id = (_version),                                        \
 393     .info       = &(_info),                                          \
 394     .size       = sizeof(_type),                                     \
 395     .flags      = VMS_SINGLE|VMS_POINTER,                            \
 396     .offset     = vmstate_offset_value(_state, _field, _type),       \
 397 }
 398
 399 #define VMSTATE_ARRAY(_field, _state, _num, _version, _info, _type) {\
 400     .name       = (stringify(_field)),                               \
 401     .version_id = (_version),                                        \
 402     .num        = (_num),                                            \
 403     .info       = &(_info),                                          \
 404     .size       = sizeof(_type),                                     \
 405     .flags      = VMS_ARRAY,                                         \
 406     .offset     = vmstate_offset_array(_state, _field, _type, _num), \
 407 }
 408
 409 #define VMSTATE_ARRAY_TEST(_field, _state, _num, _test, _info, _type) {\
 410     .name         = (stringify(_field)),                              \
 411     .field_exists = (_test),                                          \
 412     .num          = (_num),                                           \
 413     .info         = &(_info),                                         \
 414     .size         = sizeof(_type),                                    \
 415     .flags        = VMS_ARRAY,                                        \
 416     .offset       = vmstate_offset_array(_state, _field, _type, _num),\
 417 }
 418
 419 #define VMSTATE_SUB_ARRAY(_field, _state, _start, _num, _version, _info, _type) { \
 420     .name       = (stringify(_field)),                               \
 421     .version_id = (_version),                                        \
 422     .num        = (_num),                                            \
 423     .info       = &(_info),                                          \
 424     .size       = sizeof(_type),                                     \
 425     .flags      = VMS_ARRAY,                                         \
 426     .offset     = vmstate_offset_sub_array(_state, _field, _type, _start), \
 427 }
 428
 429 #define VMSTATE_VARRAY_INT32(_field, _state, _field_num, _version, _info, _type) {\
 430     .name       = (stringify(_field)),                               \
 431     .version_id = (_version),                                        \
 432     .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \
 433     .info       = &(_info),                                          \
 434     .size       = sizeof(_type),                                     \
 435     .flags      = VMS_VARRAY_INT32|VMS_POINTER,                      \
 436     .offset     = vmstate_offset_pointer(_state, _field, _type),     \
 437 }
 438
 439 #define VMSTATE_VARRAY_UINT16_UNSAFE(_field, _state, _field_num, _version, _info, _type) {\
 440     .name       = (stringify(_field)),                               \
 441     .version_id = (_version),                                        \
 442     .num_offset = vmstate_offset_value(_state, _field_num, uint16_t),\
 443     .info       = &(_info),                                          \
 444     .size       = sizeof(_type),                                     \
 445     .flags      = VMS_VARRAY_UINT16,                                 \
 446     .offset     = offsetof(_state, _field),                          \
 447 }
 448
 449 #define VMSTATE_STRUCT_TEST(_field, _state, _test, _version, _vmsd, _type) { \
 450     .name         = (stringify(_field)),                             \
 451     .version_id   = (_version),                                      \
 452     .field_exists = (_test),                                         \
 453     .vmsd         = &(_vmsd),                                        \
 454     .size         = sizeof(_type),                                   \
 455     .flags        = VMS_STRUCT,                                      \
 456     .offset       = vmstate_offset_value(_state, _field, _type),     \
 457 }
 458
 459 #define VMSTATE_STRUCT_POINTER_TEST(_field, _state, _test, _vmsd, _type) { \
 460     .name         = (stringify(_field)),                             \
 461     .field_exists = (_test),                                         \
 462     .vmsd         = &(_vmsd),                                        \
 463     .size         = sizeof(_type),                                   \
 464     .flags        = VMS_STRUCT|VMS_POINTER,                          \
 465     .offset       = vmstate_offset_value(_state, _field, _type),     \
 466 }
 467
 468 #define VMSTATE_ARRAY_OF_POINTER(_field, _state, _num, _version, _info, _type) {\
 469     .name       = (stringify(_field)),                               \
 470     .version_id = (_version),                                        \
 471     .num        = (_num),                                            \
 472     .info       = &(_info),                                          \
 473     .size       = sizeof(_type),                                     \
 474     .flags      = VMS_ARRAY|VMS_ARRAY_OF_POINTER,                    \
 475     .offset     = vmstate_offset_array(_state, _field, _type, _num), \
 476 }
 477
 478 #define VMSTATE_STRUCT_ARRAY(_field, _state, _num, _version, _vmsd, _type) { \
 479     .name       = (stringify(_field)),                               \
 480     .num        = (_num),                                            \
 481     .version_id = (_version),                                        \
 482     .vmsd       = &(_vmsd),                                          \
 483     .size       = sizeof(_type),                                     \
 484     .flags      = VMS_STRUCT|VMS_ARRAY,                              \
 485     .offset     = vmstate_offset_array(_state, _field, _type, _num), \
 486 }
 487
 488 #define VMSTATE_STRUCT_VARRAY_UINT8(_field, _state, _field_num, _version, _vmsd, _type) { \
 489     .name       = (stringify(_field)),                               \
 490     .num_offset = vmstate_offset_value(_state, _field_num, uint8_t),  \
 491     .version_id = (_version),                                        \
 492     .vmsd       = &(_vmsd),                                          \
 493     .size       = sizeof(_type),                                     \
 494     .flags      = VMS_STRUCT|VMS_VARRAY_INT32,                       \
 495     .offset     = offsetof(_state, _field),                          \
 496 }
 497
 498 #define VMSTATE_STATIC_BUFFER(_field, _state, _version, _test, _start, _size) { \
 499     .name         = (stringify(_field)),                             \
 500     .version_id   = (_version),                                      \
 501     .field_exists = (_test),                                         \
 502     .size         = (_size - _start),                                \
 503     .info         = &vmstate_info_buffer,                            \
 504     .flags        = VMS_BUFFER,                                      \
 505     .offset       = vmstate_offset_buffer(_state, _field) + _start,  \
 506 }
 507
 508 #define VMSTATE_BUFFER_MULTIPLY(_field, _state, _version, _test, _start, _field_size, _multiply) { \
 509     .name         = (stringify(_field)),                             \
 510     .version_id   = (_version),                                      \
 511     .field_exists = (_test),                                         \
 512     .size_offset  = vmstate_offset_value(_state, _field_size, uint32_t),\
 513     .size         = (_multiply),                                      \
 514     .info         = &vmstate_info_buffer,                            \
 515     .flags        = VMS_VBUFFER|VMS_MULTIPLY,                        \
 516     .offset       = offsetof(_state, _field),                        \
 517     .start        = (_start),                                        \
 518 }
 519
 520 #define VMSTATE_VBUFFER(_field, _state, _version, _test, _start, _field_size) { \
 521     .name         = (stringify(_field)),                             \
 522     .version_id   = (_version),                                      \
 523     .field_exists = (_test),                                         \
 524     .size_offset  = vmstate_offset_value(_state, _field_size, int32_t),\
 525     .info         = &vmstate_info_buffer,                            \
 526     .flags        = VMS_VBUFFER|VMS_POINTER,                         \
 527     .offset       = offsetof(_state, _field),                        \
 528     .start        = (_start),                                        \
 529 }
 530
 531 #define VMSTATE_VBUFFER_UINT32(_field, _state, _version, _test, _start, _field_size) { \
 532     .name         = (stringify(_field)),                             \
 533     .version_id   = (_version),                                      \
 534     .field_exists = (_test),                                         \
 535     .size_offset  = vmstate_offset_value(_state, _field_size, uint32_t),\
 536     .info         = &vmstate_info_buffer,                            \
 537     .flags        = VMS_VBUFFER|VMS_POINTER,                         \
 538     .offset       = offsetof(_state, _field),                        \
 539     .start        = (_start),                                        \
 540 }
 541
 542 #define VMSTATE_BUFFER_UNSAFE_INFO(_field, _state, _version, _info, _size) { \
 543     .name       = (stringify(_field)),                               \
 544     .version_id = (_version),                                        \
 545     .size       = (_size),                                           \
 546     .info       = &(_info),                                          \
 547     .flags      = VMS_BUFFER,                                        \
 548     .offset     = offsetof(_state, _field),                          \
 549 }
 550
 551 #define VMSTATE_UNUSED_BUFFER(_test, _version, _size) {              \
 552     .name         = "unused",                                        \
 553     .field_exists = (_test),                                         \
 554     .version_id   = (_version),                                      \
 555     .size         = (_size),                                         \
 556     .info         = &vmstate_info_unused_buffer,                     \
 557     .flags        = VMS_BUFFER,                                      \
 558 }
 559 extern const VMStateDescription vmstate_pci_device;
 560
 561 #define VMSTATE_PCI_DEVICE(_field, _state) {                         \
 562     .name       = (stringify(_field)),                               \
 563     .size       = sizeof(PCIDevice),                                 \
 564     .vmsd       = &vmstate_pci_device,                               \
 565     .flags      = VMS_STRUCT,                                        \
 566     .offset     = vmstate_offset_value(_state, _field, PCIDevice),   \
 567 }
 568
 569 extern const VMStateDescription vmstate_pcie_device;
 570
 571 #define VMSTATE_PCIE_DEVICE(_field, _state) {                        \
 572     .name       = (stringify(_field)),                               \
 573     .version_id = 2,                                                 \
 574     .size       = sizeof(PCIDevice),                                 \
 575     .vmsd       = &vmstate_pcie_device,                              \
 576     .flags      = VMS_STRUCT,                                        \
 577     .offset     = vmstate_offset_value(_state, _field, PCIDevice),   \
 578 }
 579
 580 extern const VMStateDescription vmstate_i2c_slave;
 581
 582 #define VMSTATE_I2C_SLAVE(_field, _state) {                          \
 583     .name       = (stringify(_field)),                               \
 584     .size       = sizeof(i2c_slave),                                 \
 585     .vmsd       = &vmstate_i2c_slave,                                \
 586     .flags      = VMS_STRUCT,                                        \
 587     .offset     = vmstate_offset_value(_state, _field, i2c_slave),   \
 588 }
 589
 590 extern const VMStateDescription vmstate_usb_device;
 591
 592 #define VMSTATE_USB_DEVICE(_field, _state) {                         \
 593     .name       = (stringify(_field)),                               \
 594     .size       = sizeof(USBDevice),                                 \
 595     .vmsd       = &vmstate_usb_device,                               \
 596     .flags      = VMS_STRUCT,                                        \
 597     .offset     = vmstate_offset_value(_state, _field, USBDevice),   \
 598 }
 599
 600 #define vmstate_offset_macaddr(_state, _field)                       \
 601     vmstate_offset_array(_state, _field.a, uint8_t,                \
 602                          sizeof(typeof_field(_state, _field)))
 603
 604 #define VMSTATE_MACADDR(_field, _state) {                            \
 605     .name       = (stringify(_field)),                               \
 606     .size       = sizeof(MACAddr),                                   \
 607     .info       = &vmstate_info_buffer,                              \
 608     .flags      = VMS_BUFFER,                                        \
 609     .offset     = vmstate_offset_macaddr(_state, _field),            \
 610 }
 611
 612 /* _f : field name
 613    _f_n : num of elements field_name
 614    _n : num of elements
 615    _s : struct state name
 616    _v : version
 617 */
 618
 619 #define VMSTATE_SINGLE(_field, _state, _version, _info, _type)        \
 620     VMSTATE_SINGLE_TEST(_field, _state, NULL, _version, _info, _type)
 621
 622 #define VMSTATE_STRUCT(_field, _state, _version, _vmsd, _type)        \
 623     VMSTATE_STRUCT_TEST(_field, _state, NULL, _version, _vmsd, _type)
 624
 625 #define VMSTATE_STRUCT_POINTER(_field, _state, _vmsd, _type)          \
 626     VMSTATE_STRUCT_POINTER_TEST(_field, _state, NULL, _vmsd, _type)
 627
 628 #define VMSTATE_BOOL_V(_f, _s, _v)                                    \
 629     VMSTATE_SINGLE(_f, _s, _v, vmstate_info_bool, bool)
 630
 631 #define VMSTATE_INT8_V(_f, _s, _v)                                    \
 632     VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int8, int8_t)
 633 #define VMSTATE_INT16_V(_f, _s, _v)                                   \
 634     VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int16, int16_t)
 635 #define VMSTATE_INT32_V(_f, _s, _v)                                   \
 636     VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int32, int32_t)
 637 #define VMSTATE_INT64_V(_f, _s, _v)                                   \
 638     VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int64, int64_t)
 639
 640 #define VMSTATE_UINT8_V(_f, _s, _v)                                   \
 641     VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint8, uint8_t)
 642 #define VMSTATE_UINT16_V(_f, _s, _v)                                  \
 643     VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint16, uint16_t)
 644 #define VMSTATE_UINT32_V(_f, _s, _v)                                  \
 645     VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint32, uint32_t)
 646 #define VMSTATE_UINT64_V(_f, _s, _v)                                  \
 647     VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint64, uint64_t)
 648
 649 #define VMSTATE_BOOL(_f, _s)                                          \
 650     VMSTATE_BOOL_V(_f, _s, 0)
 651
 652 #define VMSTATE_INT8(_f, _s)                                          \
 653     VMSTATE_INT8_V(_f, _s, 0)
 654 #define VMSTATE_INT16(_f, _s)                                         \
 655     VMSTATE_INT16_V(_f, _s, 0)
 656 #define VMSTATE_INT32(_f, _s)                                         \
 657     VMSTATE_INT32_V(_f, _s, 0)
 658 #define VMSTATE_INT64(_f, _s)                                         \
 659     VMSTATE_INT64_V(_f, _s, 0)
 660
 661 #define VMSTATE_UINT8(_f, _s)                                         \
 662     VMSTATE_UINT8_V(_f, _s, 0)
 663 #define VMSTATE_UINT16(_f, _s)                                        \
 664     VMSTATE_UINT16_V(_f, _s, 0)
 665 #define VMSTATE_UINT32(_f, _s)                                        \
 666     VMSTATE_UINT32_V(_f, _s, 0)
 667 #define VMSTATE_UINT64(_f, _s)                                        \
 668     VMSTATE_UINT64_V(_f, _s, 0)
 669
 670 #define VMSTATE_UINT8_EQUAL(_f, _s)                                   \
 671     VMSTATE_SINGLE(_f, _s, 0, vmstate_info_uint8_equal, uint8_t)
 672
 673 #define VMSTATE_UINT16_EQUAL(_f, _s)                                  \
 674     VMSTATE_SINGLE(_f, _s, 0, vmstate_info_uint16_equal, uint16_t)
 675
 676 #define VMSTATE_UINT16_EQUAL_V(_f, _s, _v)                            \
 677     VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint16_equal, uint16_t)
 678
 679 #define VMSTATE_INT32_EQUAL(_f, _s)                                   \
 680     VMSTATE_SINGLE(_f, _s, 0, vmstate_info_int32_equal, int32_t)
 681
 682 #define VMSTATE_INT32_LE(_f, _s)                                   \
 683     VMSTATE_SINGLE(_f, _s, 0, vmstate_info_int32_le, int32_t)
 684
 685 #define VMSTATE_UINT16_TEST(_f, _s, _t)                               \
 686     VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint16, uint16_t)
 687
 688 #define VMSTATE_UINT32_TEST(_f, _s, _t)                                  \
 689     VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint32, uint32_t)
 690
 691 #define VMSTATE_TIMER_V(_f, _s, _v)                                   \
 692     VMSTATE_POINTER(_f, _s, _v, vmstate_info_timer, QEMUTimer *)
 693
 694 #define VMSTATE_TIMER(_f, _s)                                         \
 695     VMSTATE_TIMER_V(_f, _s, 0)
 696
 697 #define VMSTATE_TIMER_ARRAY(_f, _s, _n)                              \
 698     VMSTATE_ARRAY_OF_POINTER(_f, _s, _n, 0, vmstate_info_timer, QEMUTimer *)
 699
 700 #define VMSTATE_PTIMER_V(_f, _s, _v)                                  \
 701     VMSTATE_POINTER(_f, _s, _v, vmstate_info_ptimer, ptimer_state *)
 702
 703 #define VMSTATE_PTIMER(_f, _s)                                        \
 704     VMSTATE_PTIMER_V(_f, _s, 0)
 705
 706 #define VMSTATE_BOOL_ARRAY_V(_f, _s, _n, _v)                         \
 707     VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_bool, bool)
 708
 709 #define VMSTATE_BOOL_ARRAY(_f, _s, _n)                               \
 710     VMSTATE_BOOL_ARRAY_V(_f, _s, _n, 0)
 711
 712 #define VMSTATE_UINT16_ARRAY_V(_f, _s, _n, _v)                         \
 713     VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint16, uint16_t)
 714
 715 #define VMSTATE_UINT16_ARRAY(_f, _s, _n)                               \
 716     VMSTATE_UINT16_ARRAY_V(_f, _s, _n, 0)
 717
 718 #define VMSTATE_UINT8_ARRAY_V(_f, _s, _n, _v)                         \
 719     VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint8, uint8_t)
 720
 721 #define VMSTATE_UINT8_ARRAY(_f, _s, _n)                               \
 722     VMSTATE_UINT8_ARRAY_V(_f, _s, _n, 0)
 723
 724 #define VMSTATE_UINT32_ARRAY_V(_f, _s, _n, _v)                        \
 725     VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint32, uint32_t)
 726
 727 #define VMSTATE_UINT32_ARRAY(_f, _s, _n)                              \
 728     VMSTATE_UINT32_ARRAY_V(_f, _s, _n, 0)
 729
 730 #define VMSTATE_UINT64_ARRAY_V(_f, _s, _n, _v)                        \
 731     VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint64, uint64_t)
 732
 733 #define VMSTATE_UINT64_ARRAY(_f, _s, _n)                              \
 734     VMSTATE_UINT64_ARRAY_V(_f, _s, _n, 0)
 735
 736 #define VMSTATE_INT16_ARRAY_V(_f, _s, _n, _v)                         \
 737     VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int16, int16_t)
 738
 739 #define VMSTATE_INT16_ARRAY(_f, _s, _n)                               \
 740     VMSTATE_INT16_ARRAY_V(_f, _s, _n, 0)
 741
 742 #define VMSTATE_INT32_ARRAY_V(_f, _s, _n, _v)                         \
 743     VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int32, int32_t)
 744
 745 #define VMSTATE_INT32_ARRAY(_f, _s, _n)                               \
 746     VMSTATE_INT32_ARRAY_V(_f, _s, _n, 0)
 747
 748 #define VMSTATE_UINT32_SUB_ARRAY(_f, _s, _start, _num)                \
 749     VMSTATE_SUB_ARRAY(_f, _s, _start, _num, 0, vmstate_info_uint32, uint32_t)
 750
 751 #define VMSTATE_UINT32_ARRAY(_f, _s, _n)                              \
 752     VMSTATE_UINT32_ARRAY_V(_f, _s, _n, 0)
 753
 754 #define VMSTATE_BUFFER_V(_f, _s, _v)                                  \
 755     VMSTATE_STATIC_BUFFER(_f, _s, _v, NULL, 0, sizeof(typeof_field(_s, _f)))
 756
 757 #define VMSTATE_BUFFER(_f, _s)                                        \
 758     VMSTATE_BUFFER_V(_f, _s, 0)
 759
 760 #define VMSTATE_PARTIAL_BUFFER(_f, _s, _size)                         \
 761     VMSTATE_STATIC_BUFFER(_f, _s, 0, NULL, 0, _size)
 762
 763 #define VMSTATE_BUFFER_START_MIDDLE(_f, _s, _start) \
 764     VMSTATE_STATIC_BUFFER(_f, _s, 0, NULL, _start, sizeof(typeof_field(_s, _f)))
 765
 766 #define VMSTATE_PARTIAL_VBUFFER(_f, _s, _size)                        \
 767     VMSTATE_VBUFFER(_f, _s, 0, NULL, 0, _size)
 768
 769 #define VMSTATE_PARTIAL_VBUFFER_UINT32(_f, _s, _size)                        \
 770     VMSTATE_VBUFFER_UINT32(_f, _s, 0, NULL, 0, _size)
 771
 772 #define VMSTATE_SUB_VBUFFER(_f, _s, _start, _size)                    \
 773     VMSTATE_VBUFFER(_f, _s, 0, NULL, _start, _size)
 774
 775 #define VMSTATE_BUFFER_TEST(_f, _s, _test)                            \
 776     VMSTATE_STATIC_BUFFER(_f, _s, 0, _test, 0, sizeof(typeof_field(_s, _f)))
 777
 778 #define VMSTATE_BUFFER_UNSAFE(_field, _state, _version, _size)        \
 779     VMSTATE_BUFFER_UNSAFE_INFO(_field, _state, _version, vmstate_info_buffer, _size)
 780
 781 #define VMSTATE_UNUSED_V(_v, _size)                                   \
 782     VMSTATE_UNUSED_BUFFER(NULL, _v, _size)
 783
 784 #define VMSTATE_UNUSED(_size)                                         \
 785     VMSTATE_UNUSED_V(0, _size)
 786
 787 #define VMSTATE_UNUSED_TEST(_test, _size)                             \
 788     VMSTATE_UNUSED_BUFFER(_test, 0, _size)
 789
 790 #ifdef NEED_CPU_H
 791 #if TARGET_LONG_BITS == 64
 792 #define VMSTATE_UINTTL_V(_f, _s, _v)                                  \
 793     VMSTATE_UINT64_V(_f, _s, _v)
 794 #define VMSTATE_UINTTL_ARRAY_V(_f, _s, _n, _v)                        \
 795     VMSTATE_UINT64_ARRAY_V(_f, _s, _n, _v)
 796 #else
 797 #define VMSTATE_UINTTL_V(_f, _s, _v)                                  \
 798     VMSTATE_UINT32_V(_f, _s, _v)
 799 #define VMSTATE_UINTTL_ARRAY_V(_f, _s, _n, _v)                        \
 800     VMSTATE_UINT32_ARRAY_V(_f, _s, _n, _v)
 801 #endif
 802 #define VMSTATE_UINTTL(_f, _s)                                        \
 803     VMSTATE_UINTTL_V(_f, _s, 0)
 804 #define VMSTATE_UINTTL_ARRAY(_f, _s, _n)                              \
 805     VMSTATE_UINTTL_ARRAY_V(_f, _s, _n, 0)
 806
 807 #endif
 808
 809 #define VMSTATE_END_OF_LIST()                                         \
 810     {}
 811
 812 int vmstate_load_state(QEMUFile *f, const VMStateDescription *vmsd,
 813                        void *opaque, int version_id);
 814 void vmstate_save_state(QEMUFile *f, const VMStateDescription *vmsd,
 815                         void *opaque);
 816 int vmstate_register(DeviceState *dev, int instance_id,
 817                      const VMStateDescription *vmsd, void *base);
 818 int vmstate_register_with_alias_id(DeviceState *dev, int instance_id,
 819                                    const VMStateDescription *vmsd,
 820                                    void *base, int alias_id,
 821                                    int required_for_version);
 822 void vmstate_unregister(DeviceState *dev, const VMStateDescription *vmsd,
 823                         void *opaque);
 824 #endif