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qxl: call qemu_spice_display_init_common for secondary devices
[qemu/ar7.git] / include / migration / vmstate.h
blob85e43da56868bc62b720b9e6a88f284603096887
1 /*
2 * QEMU migration/snapshot declarations
3 *
4 * Copyright (c) 2009-2011 Red Hat, Inc.
5 *
6 * Original author: Juan Quintela <quintela@redhat.com>
7 *
8 * Permission is hereby granted, free of charge, to any person obtaining a copy
9 * of this software and associated documentation files (the "Software"), to deal
10 * in the Software without restriction, including without limitation the rights
11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
12 * copies of the Software, and to permit persons to whom the Software is
13 * furnished to do so, subject to the following conditions:
14 *
15 * The above copyright notice and this permission notice shall be included in
16 * all copies or substantial portions of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
21 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24 * THE SOFTWARE.
25 */
26
27 #ifndef QEMU_VMSTATE_H
28 #define QEMU_VMSTATE_H
29
30 #include "migration/qjson.h"
31
32 typedef struct VMStateInfo VMStateInfo;
33 typedef struct VMStateDescription VMStateDescription;
34 typedef struct VMStateField VMStateField;
35
36 /* VMStateInfo allows customized migration of objects that don't fit in
37 * any category in VMStateFlags. Additional information is always passed
38 * into get and put in terms of field and vmdesc parameters. However
39 * these two parameters should only be used in cases when customized
40 * handling is needed, such as QTAILQ. For primitive data types such as
41 * integer, field and vmdesc parameters should be ignored inside get/put.
42 */
43 struct VMStateInfo {
44 const char *name;
45 int (*get)(QEMUFile *f, void *pv, size_t size, VMStateField *field);
46 int (*put)(QEMUFile *f, void *pv, size_t size, VMStateField *field,
47 QJSON *vmdesc);
48 };
49
50 enum VMStateFlags {
51 /* Ignored */
52 VMS_SINGLE = 0x001,
53
54 /* The struct member at opaque + VMStateField.offset is a pointer
55 * to the actual field (e.g. struct a { uint8_t *b;
56 * }). Dereference the pointer before using it as basis for
57 * further pointer arithmetic (see e.g. VMS_ARRAY). Does not
58 * affect the meaning of VMStateField.num_offset or
59 * VMStateField.size_offset; see VMS_VARRAY* and VMS_VBUFFER for
60 * those. */
61 VMS_POINTER = 0x002,
62
63 /* The field is an array of fixed size. VMStateField.num contains
64 * the number of entries in the array. The size of each entry is
65 * given by VMStateField.size and / or opaque +
66 * VMStateField.size_offset; see VMS_VBUFFER and
67 * VMS_MULTIPLY. Each array entry will be processed individually
68 * (VMStateField.info.get()/put() if VMS_STRUCT is not set,
69 * recursion into VMStateField.vmsd if VMS_STRUCT is set). May not
70 * be combined with VMS_VARRAY*. */
71 VMS_ARRAY = 0x004,
72
73 /* The field is itself a struct, containing one or more
74 * fields. Recurse into VMStateField.vmsd. Most useful in
75 * combination with VMS_ARRAY / VMS_VARRAY*, recursing into each
76 * array entry. */
77 VMS_STRUCT = 0x008,
78
79 /* The field is an array of variable size. The int32_t at opaque +
80 * VMStateField.num_offset contains the number of entries in the
81 * array. See the VMS_ARRAY description regarding array handling
82 * in general. May not be combined with VMS_ARRAY or any other
83 * VMS_VARRAY*. */
84 VMS_VARRAY_INT32 = 0x010,
85
86 /* Ignored */
87 VMS_BUFFER = 0x020,
88
89 /* The field is a (fixed-size or variable-size) array of pointers
90 * (e.g. struct a { uint8_t *b[]; }). Dereference each array entry
91 * before using it. Note: Does not imply any one of VMS_ARRAY /
92 * VMS_VARRAY*; these need to be set explicitly. */
93 VMS_ARRAY_OF_POINTER = 0x040,
94
95 /* The field is an array of variable size. The uint16_t at opaque
96 * + VMStateField.num_offset (subject to VMS_MULTIPLY_ELEMENTS)
97 * contains the number of entries in the array. See the VMS_ARRAY
98 * description regarding array handling in general. May not be
99 * combined with VMS_ARRAY or any other VMS_VARRAY*. */
100 VMS_VARRAY_UINT16 = 0x080,
101
102 /* The size of the individual entries (a single array entry if
103 * VMS_ARRAY or any of VMS_VARRAY* are set, or the field itself if
104 * neither is set) is variable (i.e. not known at compile-time),
105 * but the same for all entries. Use the int32_t at opaque +
106 * VMStateField.size_offset (subject to VMS_MULTIPLY) to determine
107 * the size of each (and every) entry. */
108 VMS_VBUFFER = 0x100,
109
110 /* Multiply the entry size given by the int32_t at opaque +
111 * VMStateField.size_offset (see VMS_VBUFFER description) with
112 * VMStateField.size to determine the number of bytes to be
113 * allocated. Only valid in combination with VMS_VBUFFER. */
114 VMS_MULTIPLY = 0x200,
115
116 /* The field is an array of variable size. The uint8_t at opaque +
117 * VMStateField.num_offset (subject to VMS_MULTIPLY_ELEMENTS)
118 * contains the number of entries in the array. See the VMS_ARRAY
119 * description regarding array handling in general. May not be
120 * combined with VMS_ARRAY or any other VMS_VARRAY*. */
121 VMS_VARRAY_UINT8 = 0x400,
122
123 /* The field is an array of variable size. The uint32_t at opaque
124 * + VMStateField.num_offset (subject to VMS_MULTIPLY_ELEMENTS)
125 * contains the number of entries in the array. See the VMS_ARRAY
126 * description regarding array handling in general. May not be
127 * combined with VMS_ARRAY or any other VMS_VARRAY*. */
128 VMS_VARRAY_UINT32 = 0x800,
129
130 /* Fail loading the serialised VM state if this field is missing
131 * from the input. */
132 VMS_MUST_EXIST = 0x1000,
133
134 /* When loading serialised VM state, allocate memory for the
135 * (entire) field. Only valid in combination with
136 * VMS_POINTER. Note: Not all combinations with other flags are
137 * currently supported, e.g. VMS_ALLOC|VMS_ARRAY_OF_POINTER won't
138 * cause the individual entries to be allocated. */
139 VMS_ALLOC = 0x2000,
140
141 /* Multiply the number of entries given by the integer at opaque +
142 * VMStateField.num_offset (see VMS_VARRAY*) with VMStateField.num
143 * to determine the number of entries in the array. Only valid in
144 * combination with one of VMS_VARRAY*. */
145 VMS_MULTIPLY_ELEMENTS = 0x4000,
146 };
147
148 typedef enum {
149 MIG_PRI_DEFAULT = 0,
150 MIG_PRI_IOMMU, /* Must happen before PCI devices */
151 MIG_PRI_GICV3_ITS, /* Must happen before PCI devices */
152 MIG_PRI_GICV3, /* Must happen before the ITS */
153 MIG_PRI_MAX,
154 } MigrationPriority;
155
156 struct VMStateField {
157 const char *name;
158 const char *err_hint;
159 size_t offset;
160 size_t size;
161 size_t start;
162 int num;
163 size_t num_offset;
164 size_t size_offset;
165 const VMStateInfo *info;
166 enum VMStateFlags flags;
167 const VMStateDescription *vmsd;
168 int version_id;
169 bool (*field_exists)(void *opaque, int version_id);
170 };
171
172 struct VMStateDescription {
173 const char *name;
174 int unmigratable;
175 int version_id;
176 int minimum_version_id;
177 int minimum_version_id_old;
178 MigrationPriority priority;
179 LoadStateHandler *load_state_old;
180 int (*pre_load)(void *opaque);
181 int (*post_load)(void *opaque, int version_id);
182 void (*pre_save)(void *opaque);
183 bool (*needed)(void *opaque);
184 VMStateField *fields;
185 const VMStateDescription **subsections;
186 };
187
188 extern const VMStateDescription vmstate_dummy;
189
190 extern const VMStateInfo vmstate_info_bool;
191
192 extern const VMStateInfo vmstate_info_int8;
193 extern const VMStateInfo vmstate_info_int16;
194 extern const VMStateInfo vmstate_info_int32;
195 extern const VMStateInfo vmstate_info_int64;
196
197 extern const VMStateInfo vmstate_info_uint8_equal;
198 extern const VMStateInfo vmstate_info_uint16_equal;
199 extern const VMStateInfo vmstate_info_int32_equal;
200 extern const VMStateInfo vmstate_info_uint32_equal;
201 extern const VMStateInfo vmstate_info_uint64_equal;
202 extern const VMStateInfo vmstate_info_int32_le;
203
204 extern const VMStateInfo vmstate_info_uint8;
205 extern const VMStateInfo vmstate_info_uint16;
206 extern const VMStateInfo vmstate_info_uint32;
207 extern const VMStateInfo vmstate_info_uint64;
208
209 /** Put this in the stream when migrating a null pointer.*/
210 #define VMS_NULLPTR_MARKER (0x30U) /* '0' */
211 extern const VMStateInfo vmstate_info_nullptr;
212
213 extern const VMStateInfo vmstate_info_float64;
214 extern const VMStateInfo vmstate_info_cpudouble;
215
216 extern const VMStateInfo vmstate_info_timer;
217 extern const VMStateInfo vmstate_info_buffer;
218 extern const VMStateInfo vmstate_info_unused_buffer;
219 extern const VMStateInfo vmstate_info_tmp;
220 extern const VMStateInfo vmstate_info_bitmap;
221 extern const VMStateInfo vmstate_info_qtailq;
222
223 #define type_check_2darray(t1,t2,n,m) ((t1(*)[n][m])0 - (t2*)0)
224 #define type_check_array(t1,t2,n) ((t1(*)[n])0 - (t2*)0)
225 #define type_check_pointer(t1,t2) ((t1**)0 - (t2*)0)
226
227 #define vmstate_offset_value(_state, _field, _type) \
228 (offsetof(_state, _field) + \
229 type_check(_type, typeof_field(_state, _field)))
230
231 #define vmstate_offset_pointer(_state, _field, _type) \
232 (offsetof(_state, _field) + \
233 type_check_pointer(_type, typeof_field(_state, _field)))
234
235 #define vmstate_offset_array(_state, _field, _type, _num) \
236 (offsetof(_state, _field) + \
237 type_check_array(_type, typeof_field(_state, _field), _num))
238
239 #define vmstate_offset_2darray(_state, _field, _type, _n1, _n2) \
240 (offsetof(_state, _field) + \
241 type_check_2darray(_type, typeof_field(_state, _field), _n1, _n2))
242
243 #define vmstate_offset_sub_array(_state, _field, _type, _start) \
244 vmstate_offset_value(_state, _field[_start], _type)
245
246 #define vmstate_offset_buffer(_state, _field) \
247 vmstate_offset_array(_state, _field, uint8_t, \
248 sizeof(typeof_field(_state, _field)))
249
250 #define VMSTATE_SINGLE_TEST(_field, _state, _test, _version, _info, _type) { \
251 .name = (stringify(_field)), \
252 .version_id = (_version), \
253 .field_exists = (_test), \
254 .size = sizeof(_type), \
255 .info = &(_info), \
256 .flags = VMS_SINGLE, \
257 .offset = vmstate_offset_value(_state, _field, _type), \
258 }
259
260 #define VMSTATE_SINGLE_FULL(_field, _state, _test, _version, _info, \
261 _type, _err_hint) { \
262 .name = (stringify(_field)), \
263 .err_hint = (_err_hint), \
264 .version_id = (_version), \
265 .field_exists = (_test), \
266 .size = sizeof(_type), \
267 .info = &(_info), \
268 .flags = VMS_SINGLE, \
269 .offset = vmstate_offset_value(_state, _field, _type), \
270 }
271
272 /* Validate state using a boolean predicate. */
273 #define VMSTATE_VALIDATE(_name, _test) { \
274 .name = (_name), \
275 .field_exists = (_test), \
276 .flags = VMS_ARRAY | VMS_MUST_EXIST, \
277 .num = 0, /* 0 elements: no data, only run _test */ \
278 }
279
280 #define VMSTATE_POINTER(_field, _state, _version, _info, _type) { \
281 .name = (stringify(_field)), \
282 .version_id = (_version), \
283 .info = &(_info), \
284 .size = sizeof(_type), \
285 .flags = VMS_SINGLE|VMS_POINTER, \
286 .offset = vmstate_offset_value(_state, _field, _type), \
287 }
288
289 #define VMSTATE_POINTER_TEST(_field, _state, _test, _info, _type) { \
290 .name = (stringify(_field)), \
291 .info = &(_info), \
292 .field_exists = (_test), \
293 .size = sizeof(_type), \
294 .flags = VMS_SINGLE|VMS_POINTER, \
295 .offset = vmstate_offset_value(_state, _field, _type), \
296 }
297
298 #define VMSTATE_ARRAY(_field, _state, _num, _version, _info, _type) {\
299 .name = (stringify(_field)), \
300 .version_id = (_version), \
301 .num = (_num), \
302 .info = &(_info), \
303 .size = sizeof(_type), \
304 .flags = VMS_ARRAY, \
305 .offset = vmstate_offset_array(_state, _field, _type, _num), \
306 }
307
308 #define VMSTATE_2DARRAY(_field, _state, _n1, _n2, _version, _info, _type) { \
309 .name = (stringify(_field)), \
310 .version_id = (_version), \
311 .num = (_n1) * (_n2), \
312 .info = &(_info), \
313 .size = sizeof(_type), \
314 .flags = VMS_ARRAY, \
315 .offset = vmstate_offset_2darray(_state, _field, _type, _n1, _n2), \
316 }
317
318 #define VMSTATE_VARRAY_MULTIPLY(_field, _state, _field_num, _multiply, _info, _type) { \
319 .name = (stringify(_field)), \
320 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\
321 .num = (_multiply), \
322 .info = &(_info), \
323 .size = sizeof(_type), \
324 .flags = VMS_VARRAY_UINT32|VMS_MULTIPLY_ELEMENTS, \
325 .offset = offsetof(_state, _field), \
326 }
327
328 #define VMSTATE_ARRAY_TEST(_field, _state, _num, _test, _info, _type) {\
329 .name = (stringify(_field)), \
330 .field_exists = (_test), \
331 .num = (_num), \
332 .info = &(_info), \
333 .size = sizeof(_type), \
334 .flags = VMS_ARRAY, \
335 .offset = vmstate_offset_array(_state, _field, _type, _num),\
336 }
337
338 #define VMSTATE_SUB_ARRAY(_field, _state, _start, _num, _version, _info, _type) { \
339 .name = (stringify(_field)), \
340 .version_id = (_version), \
341 .num = (_num), \
342 .info = &(_info), \
343 .size = sizeof(_type), \
344 .flags = VMS_ARRAY, \
345 .offset = vmstate_offset_sub_array(_state, _field, _type, _start), \
346 }
347
348 #define VMSTATE_ARRAY_INT32_UNSAFE(_field, _state, _field_num, _info, _type) {\
349 .name = (stringify(_field)), \
350 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \
351 .info = &(_info), \
352 .size = sizeof(_type), \
353 .flags = VMS_VARRAY_INT32, \
354 .offset = offsetof(_state, _field), \
355 }
356
357 #define VMSTATE_VARRAY_INT32(_field, _state, _field_num, _version, _info, _type) {\
358 .name = (stringify(_field)), \
359 .version_id = (_version), \
360 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \
361 .info = &(_info), \
362 .size = sizeof(_type), \
363 .flags = VMS_VARRAY_INT32|VMS_POINTER, \
364 .offset = vmstate_offset_pointer(_state, _field, _type), \
365 }
366
367 #define VMSTATE_VARRAY_UINT32(_field, _state, _field_num, _version, _info, _type) {\
368 .name = (stringify(_field)), \
369 .version_id = (_version), \
370 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\
371 .info = &(_info), \
372 .size = sizeof(_type), \
373 .flags = VMS_VARRAY_UINT32|VMS_POINTER, \
374 .offset = vmstate_offset_pointer(_state, _field, _type), \
375 }
376
377 #define VMSTATE_VARRAY_UINT32_ALLOC(_field, _state, _field_num, _version, _info, _type) {\
378 .name = (stringify(_field)), \
379 .version_id = (_version), \
380 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\
381 .info = &(_info), \
382 .size = sizeof(_type), \
383 .flags = VMS_VARRAY_UINT32|VMS_POINTER|VMS_ALLOC, \
384 .offset = vmstate_offset_pointer(_state, _field, _type), \
385 }
386
387 #define VMSTATE_VARRAY_UINT16_UNSAFE(_field, _state, _field_num, _version, _info, _type) {\
388 .name = (stringify(_field)), \
389 .version_id = (_version), \
390 .num_offset = vmstate_offset_value(_state, _field_num, uint16_t),\
391 .info = &(_info), \
392 .size = sizeof(_type), \
393 .flags = VMS_VARRAY_UINT16, \
394 .offset = offsetof(_state, _field), \
395 }
396
397 #define VMSTATE_STRUCT_TEST(_field, _state, _test, _version, _vmsd, _type) { \
398 .name = (stringify(_field)), \
399 .version_id = (_version), \
400 .field_exists = (_test), \
401 .vmsd = &(_vmsd), \
402 .size = sizeof(_type), \
403 .flags = VMS_STRUCT, \
404 .offset = vmstate_offset_value(_state, _field, _type), \
405 }
406
407 #define VMSTATE_STRUCT_POINTER_V(_field, _state, _version, _vmsd, _type) { \
408 .name = (stringify(_field)), \
409 .version_id = (_version), \
410 .vmsd = &(_vmsd), \
411 .size = sizeof(_type *), \
412 .flags = VMS_STRUCT|VMS_POINTER, \
413 .offset = vmstate_offset_pointer(_state, _field, _type), \
414 }
415
416 #define VMSTATE_STRUCT_POINTER_TEST_V(_field, _state, _test, _version, _vmsd, _type) { \
417 .name = (stringify(_field)), \
418 .version_id = (_version), \
419 .field_exists = (_test), \
420 .vmsd = &(_vmsd), \
421 .size = sizeof(_type *), \
422 .flags = VMS_STRUCT|VMS_POINTER, \
423 .offset = vmstate_offset_pointer(_state, _field, _type), \
424 }
425
426 #define VMSTATE_ARRAY_OF_POINTER(_field, _state, _num, _version, _info, _type) {\
427 .name = (stringify(_field)), \
428 .version_id = (_version), \
429 .num = (_num), \
430 .info = &(_info), \
431 .size = sizeof(_type), \
432 .flags = VMS_ARRAY|VMS_ARRAY_OF_POINTER, \
433 .offset = vmstate_offset_array(_state, _field, _type, _num), \
434 }
435
436 #define VMSTATE_ARRAY_OF_POINTER_TO_STRUCT(_f, _s, _n, _v, _vmsd, _type) { \
437 .name = (stringify(_f)), \
438 .version_id = (_v), \
439 .num = (_n), \
440 .vmsd = &(_vmsd), \
441 .size = sizeof(_type *), \
442 .flags = VMS_ARRAY|VMS_STRUCT|VMS_ARRAY_OF_POINTER, \
443 .offset = vmstate_offset_array(_s, _f, _type*, _n), \
444 }
445
446 #define VMSTATE_STRUCT_SUB_ARRAY(_field, _state, _start, _num, _version, _vmsd, _type) { \
447 .name = (stringify(_field)), \
448 .version_id = (_version), \
449 .num = (_num), \
450 .vmsd = &(_vmsd), \
451 .size = sizeof(_type), \
452 .flags = VMS_STRUCT|VMS_ARRAY, \
453 .offset = vmstate_offset_sub_array(_state, _field, _type, _start), \
454 }
455
456 #define VMSTATE_STRUCT_ARRAY_TEST(_field, _state, _num, _test, _version, _vmsd, _type) { \
457 .name = (stringify(_field)), \
458 .num = (_num), \
459 .field_exists = (_test), \
460 .version_id = (_version), \
461 .vmsd = &(_vmsd), \
462 .size = sizeof(_type), \
463 .flags = VMS_STRUCT|VMS_ARRAY, \
464 .offset = vmstate_offset_array(_state, _field, _type, _num),\
465 }
466
467 #define VMSTATE_STRUCT_2DARRAY_TEST(_field, _state, _n1, _n2, _test, \
468 _version, _vmsd, _type) { \
469 .name = (stringify(_field)), \
470 .num = (_n1) * (_n2), \
471 .field_exists = (_test), \
472 .version_id = (_version), \
473 .vmsd = &(_vmsd), \
474 .size = sizeof(_type), \
475 .flags = VMS_STRUCT | VMS_ARRAY, \
476 .offset = vmstate_offset_2darray(_state, _field, _type, \
477 _n1, _n2), \
478 }
479
480 #define VMSTATE_STRUCT_VARRAY_UINT8(_field, _state, _field_num, _version, _vmsd, _type) { \
481 .name = (stringify(_field)), \
482 .num_offset = vmstate_offset_value(_state, _field_num, uint8_t), \
483 .version_id = (_version), \
484 .vmsd = &(_vmsd), \
485 .size = sizeof(_type), \
486 .flags = VMS_STRUCT|VMS_VARRAY_UINT8, \
487 .offset = offsetof(_state, _field), \
488 }
489
490 /* a variable length array (i.e. _type *_field) but we know the
491 * length
492 */
493 #define VMSTATE_STRUCT_VARRAY_POINTER_KNOWN(_field, _state, _num, _version, _vmsd, _type) { \
494 .name = (stringify(_field)), \
495 .num = (_num), \
496 .version_id = (_version), \
497 .vmsd = &(_vmsd), \
498 .size = sizeof(_type), \
499 .flags = VMS_STRUCT|VMS_ARRAY|VMS_POINTER, \
500 .offset = offsetof(_state, _field), \
501 }
502
503 #define VMSTATE_STRUCT_VARRAY_POINTER_INT32(_field, _state, _field_num, _vmsd, _type) { \
504 .name = (stringify(_field)), \
505 .version_id = 0, \
506 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \
507 .size = sizeof(_type), \
508 .vmsd = &(_vmsd), \
509 .flags = VMS_POINTER | VMS_VARRAY_INT32 | VMS_STRUCT, \
510 .offset = vmstate_offset_pointer(_state, _field, _type), \
511 }
512
513 #define VMSTATE_STRUCT_VARRAY_POINTER_UINT32(_field, _state, _field_num, _vmsd, _type) { \
514 .name = (stringify(_field)), \
515 .version_id = 0, \
516 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\
517 .size = sizeof(_type), \
518 .vmsd = &(_vmsd), \
519 .flags = VMS_POINTER | VMS_VARRAY_INT32 | VMS_STRUCT, \
520 .offset = vmstate_offset_pointer(_state, _field, _type), \
521 }
522
523 #define VMSTATE_STRUCT_VARRAY_POINTER_UINT16(_field, _state, _field_num, _vmsd, _type) { \
524 .name = (stringify(_field)), \
525 .version_id = 0, \
526 .num_offset = vmstate_offset_value(_state, _field_num, uint16_t),\
527 .size = sizeof(_type), \
528 .vmsd = &(_vmsd), \
529 .flags = VMS_POINTER | VMS_VARRAY_UINT16 | VMS_STRUCT, \
530 .offset = vmstate_offset_pointer(_state, _field, _type), \
531 }
532
533 #define VMSTATE_STRUCT_VARRAY_INT32(_field, _state, _field_num, _version, _vmsd, _type) { \
534 .name = (stringify(_field)), \
535 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \
536 .version_id = (_version), \
537 .vmsd = &(_vmsd), \
538 .size = sizeof(_type), \
539 .flags = VMS_STRUCT|VMS_VARRAY_INT32, \
540 .offset = offsetof(_state, _field), \
541 }
542
543 #define VMSTATE_STRUCT_VARRAY_UINT32(_field, _state, _field_num, _version, _vmsd, _type) { \
544 .name = (stringify(_field)), \
545 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t), \
546 .version_id = (_version), \
547 .vmsd = &(_vmsd), \
548 .size = sizeof(_type), \
549 .flags = VMS_STRUCT|VMS_VARRAY_UINT32, \
550 .offset = offsetof(_state, _field), \
551 }
552
553 #define VMSTATE_STRUCT_VARRAY_ALLOC(_field, _state, _field_num, _version, _vmsd, _type) {\
554 .name = (stringify(_field)), \
555 .version_id = (_version), \
556 .vmsd = &(_vmsd), \
557 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \
558 .size = sizeof(_type), \
559 .flags = VMS_STRUCT|VMS_VARRAY_INT32|VMS_ALLOC|VMS_POINTER, \
560 .offset = vmstate_offset_pointer(_state, _field, _type), \
561 }
562
563 #define VMSTATE_STATIC_BUFFER(_field, _state, _version, _test, _start, _size) { \
564 .name = (stringify(_field)), \
565 .version_id = (_version), \
566 .field_exists = (_test), \
567 .size = (_size - _start), \
568 .info = &vmstate_info_buffer, \
569 .flags = VMS_BUFFER, \
570 .offset = vmstate_offset_buffer(_state, _field) + _start, \
571 }
572
573 #define VMSTATE_VBUFFER_MULTIPLY(_field, _state, _version, _test, \
574 _field_size, _multiply) { \
575 .name = (stringify(_field)), \
576 .version_id = (_version), \
577 .field_exists = (_test), \
578 .size_offset = vmstate_offset_value(_state, _field_size, uint32_t),\
579 .size = (_multiply), \
580 .info = &vmstate_info_buffer, \
581 .flags = VMS_VBUFFER|VMS_POINTER|VMS_MULTIPLY, \
582 .offset = offsetof(_state, _field), \
583 }
584
585 #define VMSTATE_VBUFFER(_field, _state, _version, _test, _field_size) { \
586 .name = (stringify(_field)), \
587 .version_id = (_version), \
588 .field_exists = (_test), \
589 .size_offset = vmstate_offset_value(_state, _field_size, int32_t),\
590 .info = &vmstate_info_buffer, \
591 .flags = VMS_VBUFFER|VMS_POINTER, \
592 .offset = offsetof(_state, _field), \
593 }
594
595 #define VMSTATE_VBUFFER_UINT32(_field, _state, _version, _test, _field_size) { \
596 .name = (stringify(_field)), \
597 .version_id = (_version), \
598 .field_exists = (_test), \
599 .size_offset = vmstate_offset_value(_state, _field_size, uint32_t),\
600 .info = &vmstate_info_buffer, \
601 .flags = VMS_VBUFFER|VMS_POINTER, \
602 .offset = offsetof(_state, _field), \
603 }
604
605 #define VMSTATE_VBUFFER_ALLOC_UINT32(_field, _state, _version, \
606 _test, _field_size) { \
607 .name = (stringify(_field)), \
608 .version_id = (_version), \
609 .field_exists = (_test), \
610 .size_offset = vmstate_offset_value(_state, _field_size, uint32_t),\
611 .info = &vmstate_info_buffer, \
612 .flags = VMS_VBUFFER|VMS_POINTER|VMS_ALLOC, \
613 .offset = offsetof(_state, _field), \
614 }
615
616 #define VMSTATE_BUFFER_UNSAFE_INFO_TEST(_field, _state, _test, _version, _info, _size) { \
617 .name = (stringify(_field)), \
618 .version_id = (_version), \
619 .field_exists = (_test), \
620 .size = (_size), \
621 .info = &(_info), \
622 .flags = VMS_BUFFER, \
623 .offset = offsetof(_state, _field), \
624 }
625
626 #define VMSTATE_BUFFER_POINTER_UNSAFE(_field, _state, _version, _size) { \
627 .name = (stringify(_field)), \
628 .version_id = (_version), \
629 .size = (_size), \
630 .info = &vmstate_info_buffer, \
631 .flags = VMS_BUFFER|VMS_POINTER, \
632 .offset = offsetof(_state, _field), \
633 }
634
635 /* Allocate a temporary of type 'tmp_type', set tmp->parent to _state
636 * and execute the vmsd on the temporary. Note that we're working with
637 * the whole of _state here, not a field within it.
638 * We compile time check that:
639 * That _tmp_type contains a 'parent' member that's a pointer to the
640 * '_state' type
641 * That the pointer is right at the start of _tmp_type.
642 */
643 #define VMSTATE_WITH_TMP(_state, _tmp_type, _vmsd) { \
644 .name = "tmp", \
645 .size = sizeof(_tmp_type) + \
646 QEMU_BUILD_BUG_ON_ZERO(offsetof(_tmp_type, parent) != 0) + \
647 type_check_pointer(_state, \
648 typeof_field(_tmp_type, parent)), \
649 .vmsd = &(_vmsd), \
650 .info = &vmstate_info_tmp, \
651 }
652
653 #define VMSTATE_UNUSED_BUFFER(_test, _version, _size) { \
654 .name = "unused", \
655 .field_exists = (_test), \
656 .version_id = (_version), \
657 .size = (_size), \
658 .info = &vmstate_info_unused_buffer, \
659 .flags = VMS_BUFFER, \
660 }
661
662 /* Discard size * field_num bytes, where field_num is a uint32 member */
663 #define VMSTATE_UNUSED_VARRAY_UINT32(_state, _test, _version, _field_num, _size) {\
664 .name = "unused", \
665 .field_exists = (_test), \
666 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\
667 .version_id = (_version), \
668 .size = (_size), \
669 .info = &vmstate_info_unused_buffer, \
670 .flags = VMS_VARRAY_UINT32 | VMS_BUFFER, \
671 }
672
673 /* _field_size should be a int32_t field in the _state struct giving the
674 * size of the bitmap _field in bits.
675 */
676 #define VMSTATE_BITMAP(_field, _state, _version, _field_size) { \
677 .name = (stringify(_field)), \
678 .version_id = (_version), \
679 .size_offset = vmstate_offset_value(_state, _field_size, int32_t),\
680 .info = &vmstate_info_bitmap, \
681 .flags = VMS_VBUFFER|VMS_POINTER, \
682 .offset = offsetof(_state, _field), \
683 }
684
685 /* For migrating a QTAILQ.
686 * Target QTAILQ needs be properly initialized.
687 * _type: type of QTAILQ element
688 * _next: name of QTAILQ entry field in QTAILQ element
689 * _vmsd: VMSD for QTAILQ element
690 * size: size of QTAILQ element
691 * start: offset of QTAILQ entry in QTAILQ element
692 */
693 #define VMSTATE_QTAILQ_V(_field, _state, _version, _vmsd, _type, _next) \
694 { \
695 .name = (stringify(_field)), \
696 .version_id = (_version), \
697 .vmsd = &(_vmsd), \
698 .size = sizeof(_type), \
699 .info = &vmstate_info_qtailq, \
700 .offset = offsetof(_state, _field), \
701 .start = offsetof(_type, _next), \
702 }
703
704 /* _f : field name
705 _f_n : num of elements field_name
706 _n : num of elements
707 _s : struct state name
708 _v : version
709 */
710
711 #define VMSTATE_SINGLE(_field, _state, _version, _info, _type) \
712 VMSTATE_SINGLE_TEST(_field, _state, NULL, _version, _info, _type)
713
714 #define VMSTATE_STRUCT(_field, _state, _version, _vmsd, _type) \
715 VMSTATE_STRUCT_TEST(_field, _state, NULL, _version, _vmsd, _type)
716
717 #define VMSTATE_STRUCT_POINTER(_field, _state, _vmsd, _type) \
718 VMSTATE_STRUCT_POINTER_V(_field, _state, 0, _vmsd, _type)
719
720 #define VMSTATE_STRUCT_POINTER_TEST(_field, _state, _test, _vmsd, _type) \
721 VMSTATE_STRUCT_POINTER_TEST_V(_field, _state, _test, 0, _vmsd, _type)
722
723 #define VMSTATE_STRUCT_ARRAY(_field, _state, _num, _version, _vmsd, _type) \
724 VMSTATE_STRUCT_ARRAY_TEST(_field, _state, _num, NULL, _version, \
725 _vmsd, _type)
726
727 #define VMSTATE_STRUCT_2DARRAY(_field, _state, _n1, _n2, _version, \
728 _vmsd, _type) \
729 VMSTATE_STRUCT_2DARRAY_TEST(_field, _state, _n1, _n2, NULL, \
730 _version, _vmsd, _type)
731
732 #define VMSTATE_BUFFER_UNSAFE_INFO(_field, _state, _version, _info, _size) \
733 VMSTATE_BUFFER_UNSAFE_INFO_TEST(_field, _state, NULL, _version, _info, \
734 _size)
735
736 #define VMSTATE_BOOL_V(_f, _s, _v) \
737 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_bool, bool)
738
739 #define VMSTATE_INT8_V(_f, _s, _v) \
740 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int8, int8_t)
741 #define VMSTATE_INT16_V(_f, _s, _v) \
742 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int16, int16_t)
743 #define VMSTATE_INT32_V(_f, _s, _v) \
744 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int32, int32_t)
745 #define VMSTATE_INT64_V(_f, _s, _v) \
746 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int64, int64_t)
747
748 #define VMSTATE_UINT8_V(_f, _s, _v) \
749 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint8, uint8_t)
750 #define VMSTATE_UINT16_V(_f, _s, _v) \
751 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint16, uint16_t)
752 #define VMSTATE_UINT32_V(_f, _s, _v) \
753 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint32, uint32_t)
754 #define VMSTATE_UINT64_V(_f, _s, _v) \
755 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint64, uint64_t)
756
757 #define VMSTATE_BOOL(_f, _s) \
758 VMSTATE_BOOL_V(_f, _s, 0)
759
760 #define VMSTATE_INT8(_f, _s) \
761 VMSTATE_INT8_V(_f, _s, 0)
762 #define VMSTATE_INT16(_f, _s) \
763 VMSTATE_INT16_V(_f, _s, 0)
764 #define VMSTATE_INT32(_f, _s) \
765 VMSTATE_INT32_V(_f, _s, 0)
766 #define VMSTATE_INT64(_f, _s) \
767 VMSTATE_INT64_V(_f, _s, 0)
768
769 #define VMSTATE_UINT8(_f, _s) \
770 VMSTATE_UINT8_V(_f, _s, 0)
771 #define VMSTATE_UINT16(_f, _s) \
772 VMSTATE_UINT16_V(_f, _s, 0)
773 #define VMSTATE_UINT32(_f, _s) \
774 VMSTATE_UINT32_V(_f, _s, 0)
775 #define VMSTATE_UINT64(_f, _s) \
776 VMSTATE_UINT64_V(_f, _s, 0)
777
778 #define VMSTATE_UINT8_EQUAL(_f, _s, _err_hint) \
779 VMSTATE_SINGLE_FULL(_f, _s, 0, 0, \
780 vmstate_info_uint8_equal, uint8_t, _err_hint)
781
782 #define VMSTATE_UINT16_EQUAL(_f, _s, _err_hint) \
783 VMSTATE_SINGLE_FULL(_f, _s, 0, 0, \
784 vmstate_info_uint16_equal, uint16_t, _err_hint)
785
786 #define VMSTATE_UINT16_EQUAL_V(_f, _s, _v, _err_hint) \
787 VMSTATE_SINGLE_FULL(_f, _s, 0, _v, \
788 vmstate_info_uint16_equal, uint16_t, _err_hint)
789
790 #define VMSTATE_INT32_EQUAL(_f, _s, _err_hint) \
791 VMSTATE_SINGLE_FULL(_f, _s, 0, 0, \
792 vmstate_info_int32_equal, int32_t, _err_hint)
793
794 #define VMSTATE_UINT32_EQUAL_V(_f, _s, _v, _err_hint) \
795 VMSTATE_SINGLE_FULL(_f, _s, 0, _v, \
796 vmstate_info_uint32_equal, uint32_t, _err_hint)
797
798 #define VMSTATE_UINT32_EQUAL(_f, _s, _err_hint) \
799 VMSTATE_UINT32_EQUAL_V(_f, _s, 0, _err_hint)
800
801 #define VMSTATE_UINT64_EQUAL_V(_f, _s, _v, _err_hint) \
802 VMSTATE_SINGLE_FULL(_f, _s, 0, _v, \
803 vmstate_info_uint64_equal, uint64_t, _err_hint)
804
805 #define VMSTATE_UINT64_EQUAL(_f, _s, _err_hint) \
806 VMSTATE_UINT64_EQUAL_V(_f, _s, 0, _err_hint)
807
808 #define VMSTATE_INT32_POSITIVE_LE(_f, _s) \
809 VMSTATE_SINGLE(_f, _s, 0, vmstate_info_int32_le, int32_t)
810
811 #define VMSTATE_INT8_TEST(_f, _s, _t) \
812 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_int8, int8_t)
813
814 #define VMSTATE_INT16_TEST(_f, _s, _t) \
815 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_int16, int16_t)
816
817 #define VMSTATE_INT32_TEST(_f, _s, _t) \
818 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_int32, int32_t)
819
820 #define VMSTATE_INT64_TEST(_f, _s, _t) \
821 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_int64, int64_t)
822
823 #define VMSTATE_UINT8_TEST(_f, _s, _t) \
824 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint8, uint8_t)
825
826 #define VMSTATE_UINT16_TEST(_f, _s, _t) \
827 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint16, uint16_t)
828
829 #define VMSTATE_UINT32_TEST(_f, _s, _t) \
830 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint32, uint32_t)
831
832 #define VMSTATE_UINT64_TEST(_f, _s, _t) \
833 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint64, uint64_t)
834
835
836 #define VMSTATE_FLOAT64_V(_f, _s, _v) \
837 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_float64, float64)
838
839 #define VMSTATE_FLOAT64(_f, _s) \
840 VMSTATE_FLOAT64_V(_f, _s, 0)
841
842 #define VMSTATE_TIMER_PTR_TEST(_f, _s, _test) \
843 VMSTATE_POINTER_TEST(_f, _s, _test, vmstate_info_timer, QEMUTimer *)
844
845 #define VMSTATE_TIMER_PTR_V(_f, _s, _v) \
846 VMSTATE_POINTER(_f, _s, _v, vmstate_info_timer, QEMUTimer *)
847
848 #define VMSTATE_TIMER_PTR(_f, _s) \
849 VMSTATE_TIMER_PTR_V(_f, _s, 0)
850
851 #define VMSTATE_TIMER_PTR_ARRAY(_f, _s, _n) \
852 VMSTATE_ARRAY_OF_POINTER(_f, _s, _n, 0, vmstate_info_timer, QEMUTimer *)
853
854 #define VMSTATE_TIMER_TEST(_f, _s, _test) \
855 VMSTATE_SINGLE_TEST(_f, _s, _test, 0, vmstate_info_timer, QEMUTimer)
856
857 #define VMSTATE_TIMER_V(_f, _s, _v) \
858 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_timer, QEMUTimer)
859
860 #define VMSTATE_TIMER(_f, _s) \
861 VMSTATE_TIMER_V(_f, _s, 0)
862
863 #define VMSTATE_TIMER_ARRAY(_f, _s, _n) \
864 VMSTATE_ARRAY(_f, _s, _n, 0, vmstate_info_timer, QEMUTimer)
865
866 #define VMSTATE_BOOL_ARRAY_V(_f, _s, _n, _v) \
867 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_bool, bool)
868
869 #define VMSTATE_BOOL_ARRAY(_f, _s, _n) \
870 VMSTATE_BOOL_ARRAY_V(_f, _s, _n, 0)
871
872 #define VMSTATE_UINT16_ARRAY_V(_f, _s, _n, _v) \
873 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint16, uint16_t)
874
875 #define VMSTATE_UINT16_2DARRAY_V(_f, _s, _n1, _n2, _v) \
876 VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint16, uint16_t)
877
878 #define VMSTATE_UINT16_ARRAY(_f, _s, _n) \
879 VMSTATE_UINT16_ARRAY_V(_f, _s, _n, 0)
880
881 #define VMSTATE_UINT16_2DARRAY(_f, _s, _n1, _n2) \
882 VMSTATE_UINT16_2DARRAY_V(_f, _s, _n1, _n2, 0)
883
884 #define VMSTATE_UINT8_2DARRAY_V(_f, _s, _n1, _n2, _v) \
885 VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint8, uint8_t)
886
887 #define VMSTATE_UINT8_ARRAY_V(_f, _s, _n, _v) \
888 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint8, uint8_t)
889
890 #define VMSTATE_UINT8_ARRAY(_f, _s, _n) \
891 VMSTATE_UINT8_ARRAY_V(_f, _s, _n, 0)
892
893 #define VMSTATE_UINT8_SUB_ARRAY(_f, _s, _start, _num) \
894 VMSTATE_SUB_ARRAY(_f, _s, _start, _num, 0, vmstate_info_uint8, uint8_t)
895
896 #define VMSTATE_UINT8_2DARRAY(_f, _s, _n1, _n2) \
897 VMSTATE_UINT8_2DARRAY_V(_f, _s, _n1, _n2, 0)
898
899 #define VMSTATE_UINT32_ARRAY_V(_f, _s, _n, _v) \
900 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint32, uint32_t)
901
902 #define VMSTATE_UINT32_2DARRAY_V(_f, _s, _n1, _n2, _v) \
903 VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint32, uint32_t)
904
905 #define VMSTATE_UINT32_ARRAY(_f, _s, _n) \
906 VMSTATE_UINT32_ARRAY_V(_f, _s, _n, 0)
907
908 #define VMSTATE_UINT32_2DARRAY(_f, _s, _n1, _n2) \
909 VMSTATE_UINT32_2DARRAY_V(_f, _s, _n1, _n2, 0)
910
911 #define VMSTATE_UINT64_ARRAY_V(_f, _s, _n, _v) \
912 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint64, uint64_t)
913
914 #define VMSTATE_UINT64_ARRAY(_f, _s, _n) \
915 VMSTATE_UINT64_ARRAY_V(_f, _s, _n, 0)
916
917 #define VMSTATE_UINT64_2DARRAY(_f, _s, _n1, _n2) \
918 VMSTATE_UINT64_2DARRAY_V(_f, _s, _n1, _n2, 0)
919
920 #define VMSTATE_UINT64_2DARRAY_V(_f, _s, _n1, _n2, _v) \
921 VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint64, uint64_t)
922
923 #define VMSTATE_INT16_ARRAY_V(_f, _s, _n, _v) \
924 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int16, int16_t)
925
926 #define VMSTATE_INT16_ARRAY(_f, _s, _n) \
927 VMSTATE_INT16_ARRAY_V(_f, _s, _n, 0)
928
929 #define VMSTATE_INT32_ARRAY_V(_f, _s, _n, _v) \
930 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int32, int32_t)
931
932 #define VMSTATE_INT32_ARRAY(_f, _s, _n) \
933 VMSTATE_INT32_ARRAY_V(_f, _s, _n, 0)
934
935 #define VMSTATE_UINT32_SUB_ARRAY(_f, _s, _start, _num) \
936 VMSTATE_SUB_ARRAY(_f, _s, _start, _num, 0, vmstate_info_uint32, uint32_t)
937
938 #define VMSTATE_INT64_ARRAY_V(_f, _s, _n, _v) \
939 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int64, int64_t)
940
941 #define VMSTATE_INT64_ARRAY(_f, _s, _n) \
942 VMSTATE_INT64_ARRAY_V(_f, _s, _n, 0)
943
944 #define VMSTATE_FLOAT64_ARRAY_V(_f, _s, _n, _v) \
945 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_float64, float64)
946
947 #define VMSTATE_FLOAT64_ARRAY(_f, _s, _n) \
948 VMSTATE_FLOAT64_ARRAY_V(_f, _s, _n, 0)
949
950 #define VMSTATE_CPUDOUBLE_ARRAY_V(_f, _s, _n, _v) \
951 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_cpudouble, CPU_DoubleU)
952
953 #define VMSTATE_CPUDOUBLE_ARRAY(_f, _s, _n) \
954 VMSTATE_CPUDOUBLE_ARRAY_V(_f, _s, _n, 0)
955
956 #define VMSTATE_BUFFER_V(_f, _s, _v) \
957 VMSTATE_STATIC_BUFFER(_f, _s, _v, NULL, 0, sizeof(typeof_field(_s, _f)))
958
959 #define VMSTATE_BUFFER(_f, _s) \
960 VMSTATE_BUFFER_V(_f, _s, 0)
961
962 #define VMSTATE_PARTIAL_BUFFER(_f, _s, _size) \
963 VMSTATE_STATIC_BUFFER(_f, _s, 0, NULL, 0, _size)
964
965 #define VMSTATE_BUFFER_START_MIDDLE_V(_f, _s, _start, _v) \
966 VMSTATE_STATIC_BUFFER(_f, _s, _v, NULL, _start, sizeof(typeof_field(_s, _f)))
967
968 #define VMSTATE_BUFFER_START_MIDDLE(_f, _s, _start) \
969 VMSTATE_BUFFER_START_MIDDLE_V(_f, _s, _start, 0)
970
971 #define VMSTATE_PARTIAL_VBUFFER(_f, _s, _size) \
972 VMSTATE_VBUFFER(_f, _s, 0, NULL, _size)
973
974 #define VMSTATE_PARTIAL_VBUFFER_UINT32(_f, _s, _size) \
975 VMSTATE_VBUFFER_UINT32(_f, _s, 0, NULL, _size)
976
977 #define VMSTATE_BUFFER_TEST(_f, _s, _test) \
978 VMSTATE_STATIC_BUFFER(_f, _s, 0, _test, 0, sizeof(typeof_field(_s, _f)))
979
980 #define VMSTATE_BUFFER_UNSAFE(_field, _state, _version, _size) \
981 VMSTATE_BUFFER_UNSAFE_INFO(_field, _state, _version, vmstate_info_buffer, _size)
982
983 #define VMSTATE_UNUSED_V(_v, _size) \
984 VMSTATE_UNUSED_BUFFER(NULL, _v, _size)
985
986 #define VMSTATE_UNUSED(_size) \
987 VMSTATE_UNUSED_V(0, _size)
988
989 #define VMSTATE_UNUSED_TEST(_test, _size) \
990 VMSTATE_UNUSED_BUFFER(_test, 0, _size)
991
992 #define VMSTATE_END_OF_LIST() \
993 {}
994
995 int vmstate_load_state(QEMUFile *f, const VMStateDescription *vmsd,
996 void *opaque, int version_id);
997 void vmstate_save_state(QEMUFile *f, const VMStateDescription *vmsd,
998 void *opaque, QJSON *vmdesc);
999
1000 bool vmstate_save_needed(const VMStateDescription *vmsd, void *opaque);
1001
1002 /* Returns: 0 on success, -1 on failure */
1003 int vmstate_register_with_alias_id(DeviceState *dev, int instance_id,
1004 const VMStateDescription *vmsd,
1005 void *base, int alias_id,
1006 int required_for_version,
1007 Error **errp);
1008
1009 /* Returns: 0 on success, -1 on failure */
1010 static inline int vmstate_register(DeviceState *dev, int instance_id,
1011 const VMStateDescription *vmsd,
1012 void *opaque)
1013 {
1014 return vmstate_register_with_alias_id(dev, instance_id, vmsd,
1015 opaque, -1, 0, NULL);
1016 }
1017
1018 void vmstate_unregister(DeviceState *dev, const VMStateDescription *vmsd,
1019 void *opaque);
1020
1021 struct MemoryRegion;
1022 void vmstate_register_ram(struct MemoryRegion *memory, DeviceState *dev);
1023 void vmstate_unregister_ram(struct MemoryRegion *memory, DeviceState *dev);
1024 void vmstate_register_ram_global(struct MemoryRegion *memory);
1025
1026 bool vmstate_check_only_migratable(const VMStateDescription *vmsd);
1027
1028 #endif
AR7 emulation for QEMU