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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging
[qemu.git] / include / migration / vmstate.h
blobf65852fc2407f9748d65652f3d72ea2a6cc98684
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 /* A structure field that is like VMS_STRUCT, but uses
148 * VMStateField.struct_version_id to tell which version of the
149 * structure we are referencing to use. */
150 VMS_VSTRUCT = 0x8000,
151 };
152
153 typedef enum {
154 MIG_PRI_DEFAULT = 0,
155 MIG_PRI_IOMMU, /* Must happen before PCI devices */
156 MIG_PRI_PCI_BUS, /* Must happen before IOMMU */
157 MIG_PRI_GICV3_ITS, /* Must happen before PCI devices */
158 MIG_PRI_GICV3, /* Must happen before the ITS */
159 MIG_PRI_MAX,
160 } MigrationPriority;
161
162 struct VMStateField {
163 const char *name;
164 const char *err_hint;
165 size_t offset;
166 size_t size;
167 size_t start;
168 int num;
169 size_t num_offset;
170 size_t size_offset;
171 const VMStateInfo *info;
172 enum VMStateFlags flags;
173 const VMStateDescription *vmsd;
174 int version_id;
175 int struct_version_id;
176 bool (*field_exists)(void *opaque, int version_id);
177 };
178
179 struct VMStateDescription {
180 const char *name;
181 int unmigratable;
182 int version_id;
183 int minimum_version_id;
184 int minimum_version_id_old;
185 MigrationPriority priority;
186 LoadStateHandler *load_state_old;
187 int (*pre_load)(void *opaque);
188 int (*post_load)(void *opaque, int version_id);
189 int (*pre_save)(void *opaque);
190 bool (*needed)(void *opaque);
191 VMStateField *fields;
192 const VMStateDescription **subsections;
193 };
194
195 extern const VMStateDescription vmstate_dummy;
196
197 extern const VMStateInfo vmstate_info_bool;
198
199 extern const VMStateInfo vmstate_info_int8;
200 extern const VMStateInfo vmstate_info_int16;
201 extern const VMStateInfo vmstate_info_int32;
202 extern const VMStateInfo vmstate_info_int64;
203
204 extern const VMStateInfo vmstate_info_uint8_equal;
205 extern const VMStateInfo vmstate_info_uint16_equal;
206 extern const VMStateInfo vmstate_info_int32_equal;
207 extern const VMStateInfo vmstate_info_uint32_equal;
208 extern const VMStateInfo vmstate_info_uint64_equal;
209 extern const VMStateInfo vmstate_info_int32_le;
210
211 extern const VMStateInfo vmstate_info_uint8;
212 extern const VMStateInfo vmstate_info_uint16;
213 extern const VMStateInfo vmstate_info_uint32;
214 extern const VMStateInfo vmstate_info_uint64;
215
216 /** Put this in the stream when migrating a null pointer.*/
217 #define VMS_NULLPTR_MARKER (0x30U) /* '0' */
218 extern const VMStateInfo vmstate_info_nullptr;
219
220 extern const VMStateInfo vmstate_info_float64;
221 extern const VMStateInfo vmstate_info_cpudouble;
222
223 extern const VMStateInfo vmstate_info_timer;
224 extern const VMStateInfo vmstate_info_buffer;
225 extern const VMStateInfo vmstate_info_unused_buffer;
226 extern const VMStateInfo vmstate_info_tmp;
227 extern const VMStateInfo vmstate_info_bitmap;
228 extern const VMStateInfo vmstate_info_qtailq;
229
230 #define type_check_2darray(t1,t2,n,m) ((t1(*)[n][m])0 - (t2*)0)
231 #define type_check_array(t1,t2,n) ((t1(*)[n])0 - (t2*)0)
232 #define type_check_pointer(t1,t2) ((t1**)0 - (t2*)0)
233
234 #define vmstate_offset_value(_state, _field, _type) \
235 (offsetof(_state, _field) + \
236 type_check(_type, typeof_field(_state, _field)))
237
238 #define vmstate_offset_pointer(_state, _field, _type) \
239 (offsetof(_state, _field) + \
240 type_check_pointer(_type, typeof_field(_state, _field)))
241
242 #define vmstate_offset_array(_state, _field, _type, _num) \
243 (offsetof(_state, _field) + \
244 type_check_array(_type, typeof_field(_state, _field), _num))
245
246 #define vmstate_offset_2darray(_state, _field, _type, _n1, _n2) \
247 (offsetof(_state, _field) + \
248 type_check_2darray(_type, typeof_field(_state, _field), _n1, _n2))
249
250 #define vmstate_offset_sub_array(_state, _field, _type, _start) \
251 vmstate_offset_value(_state, _field[_start], _type)
252
253 #define vmstate_offset_buffer(_state, _field) \
254 vmstate_offset_array(_state, _field, uint8_t, \
255 sizeof(typeof_field(_state, _field)))
256
257 /* In the macros below, if there is a _version, that means the macro's
258 * field will be processed only if the version being received is >=
259 * the _version specified. In general, if you add a new field, you
260 * would increment the structure's version and put that version
261 * number into the new field so it would only be processed with the
262 * new version.
263 *
264 * In particular, for VMSTATE_STRUCT() and friends the _version does
265 * *NOT* pick the version of the sub-structure. It works just as
266 * specified above. The version of the top-level structure received
267 * is passed down to all sub-structures. This means that the
268 * sub-structures must have version that are compatible with all the
269 * structures that use them.
270 *
271 * If you want to specify the version of the sub-structure, use
272 * VMSTATE_VSTRUCT(), which allows the specific sub-structure version
273 * to be directly specified.
274 */
275
276 #define VMSTATE_SINGLE_TEST(_field, _state, _test, _version, _info, _type) { \
277 .name = (stringify(_field)), \
278 .version_id = (_version), \
279 .field_exists = (_test), \
280 .size = sizeof(_type), \
281 .info = &(_info), \
282 .flags = VMS_SINGLE, \
283 .offset = vmstate_offset_value(_state, _field, _type), \
284 }
285
286 #define VMSTATE_SINGLE_FULL(_field, _state, _test, _version, _info, \
287 _type, _err_hint) { \
288 .name = (stringify(_field)), \
289 .err_hint = (_err_hint), \
290 .version_id = (_version), \
291 .field_exists = (_test), \
292 .size = sizeof(_type), \
293 .info = &(_info), \
294 .flags = VMS_SINGLE, \
295 .offset = vmstate_offset_value(_state, _field, _type), \
296 }
297
298 /* Validate state using a boolean predicate. */
299 #define VMSTATE_VALIDATE(_name, _test) { \
300 .name = (_name), \
301 .field_exists = (_test), \
302 .flags = VMS_ARRAY | VMS_MUST_EXIST, \
303 .num = 0, /* 0 elements: no data, only run _test */ \
304 }
305
306 #define VMSTATE_POINTER(_field, _state, _version, _info, _type) { \
307 .name = (stringify(_field)), \
308 .version_id = (_version), \
309 .info = &(_info), \
310 .size = sizeof(_type), \
311 .flags = VMS_SINGLE|VMS_POINTER, \
312 .offset = vmstate_offset_value(_state, _field, _type), \
313 }
314
315 #define VMSTATE_POINTER_TEST(_field, _state, _test, _info, _type) { \
316 .name = (stringify(_field)), \
317 .info = &(_info), \
318 .field_exists = (_test), \
319 .size = sizeof(_type), \
320 .flags = VMS_SINGLE|VMS_POINTER, \
321 .offset = vmstate_offset_value(_state, _field, _type), \
322 }
323
324 #define VMSTATE_ARRAY(_field, _state, _num, _version, _info, _type) {\
325 .name = (stringify(_field)), \
326 .version_id = (_version), \
327 .num = (_num), \
328 .info = &(_info), \
329 .size = sizeof(_type), \
330 .flags = VMS_ARRAY, \
331 .offset = vmstate_offset_array(_state, _field, _type, _num), \
332 }
333
334 #define VMSTATE_2DARRAY(_field, _state, _n1, _n2, _version, _info, _type) { \
335 .name = (stringify(_field)), \
336 .version_id = (_version), \
337 .num = (_n1) * (_n2), \
338 .info = &(_info), \
339 .size = sizeof(_type), \
340 .flags = VMS_ARRAY, \
341 .offset = vmstate_offset_2darray(_state, _field, _type, _n1, _n2), \
342 }
343
344 #define VMSTATE_VARRAY_MULTIPLY(_field, _state, _field_num, _multiply, _info, _type) { \
345 .name = (stringify(_field)), \
346 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\
347 .num = (_multiply), \
348 .info = &(_info), \
349 .size = sizeof(_type), \
350 .flags = VMS_VARRAY_UINT32|VMS_MULTIPLY_ELEMENTS, \
351 .offset = offsetof(_state, _field), \
352 }
353
354 #define VMSTATE_ARRAY_TEST(_field, _state, _num, _test, _info, _type) {\
355 .name = (stringify(_field)), \
356 .field_exists = (_test), \
357 .num = (_num), \
358 .info = &(_info), \
359 .size = sizeof(_type), \
360 .flags = VMS_ARRAY, \
361 .offset = vmstate_offset_array(_state, _field, _type, _num),\
362 }
363
364 #define VMSTATE_SUB_ARRAY(_field, _state, _start, _num, _version, _info, _type) { \
365 .name = (stringify(_field)), \
366 .version_id = (_version), \
367 .num = (_num), \
368 .info = &(_info), \
369 .size = sizeof(_type), \
370 .flags = VMS_ARRAY, \
371 .offset = vmstate_offset_sub_array(_state, _field, _type, _start), \
372 }
373
374 #define VMSTATE_ARRAY_INT32_UNSAFE(_field, _state, _field_num, _info, _type) {\
375 .name = (stringify(_field)), \
376 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \
377 .info = &(_info), \
378 .size = sizeof(_type), \
379 .flags = VMS_VARRAY_INT32, \
380 .offset = offsetof(_state, _field), \
381 }
382
383 #define VMSTATE_VARRAY_INT32(_field, _state, _field_num, _version, _info, _type) {\
384 .name = (stringify(_field)), \
385 .version_id = (_version), \
386 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \
387 .info = &(_info), \
388 .size = sizeof(_type), \
389 .flags = VMS_VARRAY_INT32|VMS_POINTER, \
390 .offset = vmstate_offset_pointer(_state, _field, _type), \
391 }
392
393 #define VMSTATE_VARRAY_UINT32(_field, _state, _field_num, _version, _info, _type) {\
394 .name = (stringify(_field)), \
395 .version_id = (_version), \
396 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\
397 .info = &(_info), \
398 .size = sizeof(_type), \
399 .flags = VMS_VARRAY_UINT32|VMS_POINTER, \
400 .offset = vmstate_offset_pointer(_state, _field, _type), \
401 }
402
403 #define VMSTATE_VARRAY_UINT32_ALLOC(_field, _state, _field_num, _version, _info, _type) {\
404 .name = (stringify(_field)), \
405 .version_id = (_version), \
406 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\
407 .info = &(_info), \
408 .size = sizeof(_type), \
409 .flags = VMS_VARRAY_UINT32|VMS_POINTER|VMS_ALLOC, \
410 .offset = vmstate_offset_pointer(_state, _field, _type), \
411 }
412
413 #define VMSTATE_VARRAY_UINT16_UNSAFE(_field, _state, _field_num, _version, _info, _type) {\
414 .name = (stringify(_field)), \
415 .version_id = (_version), \
416 .num_offset = vmstate_offset_value(_state, _field_num, uint16_t),\
417 .info = &(_info), \
418 .size = sizeof(_type), \
419 .flags = VMS_VARRAY_UINT16, \
420 .offset = offsetof(_state, _field), \
421 }
422
423 #define VMSTATE_VSTRUCT_TEST(_field, _state, _test, _version, _vmsd, _type, _struct_version) { \
424 .name = (stringify(_field)), \
425 .version_id = (_version), \
426 .struct_version_id = (_struct_version), \
427 .field_exists = (_test), \
428 .vmsd = &(_vmsd), \
429 .size = sizeof(_type), \
430 .flags = VMS_VSTRUCT, \
431 .offset = vmstate_offset_value(_state, _field, _type), \
432 }
433
434 #define VMSTATE_STRUCT_TEST(_field, _state, _test, _version, _vmsd, _type) { \
435 .name = (stringify(_field)), \
436 .version_id = (_version), \
437 .field_exists = (_test), \
438 .vmsd = &(_vmsd), \
439 .size = sizeof(_type), \
440 .flags = VMS_STRUCT, \
441 .offset = vmstate_offset_value(_state, _field, _type), \
442 }
443
444 #define VMSTATE_STRUCT_POINTER_V(_field, _state, _version, _vmsd, _type) { \
445 .name = (stringify(_field)), \
446 .version_id = (_version), \
447 .vmsd = &(_vmsd), \
448 .size = sizeof(_type *), \
449 .flags = VMS_STRUCT|VMS_POINTER, \
450 .offset = vmstate_offset_pointer(_state, _field, _type), \
451 }
452
453 #define VMSTATE_STRUCT_POINTER_TEST_V(_field, _state, _test, _version, _vmsd, _type) { \
454 .name = (stringify(_field)), \
455 .version_id = (_version), \
456 .field_exists = (_test), \
457 .vmsd = &(_vmsd), \
458 .size = sizeof(_type *), \
459 .flags = VMS_STRUCT|VMS_POINTER, \
460 .offset = vmstate_offset_pointer(_state, _field, _type), \
461 }
462
463 #define VMSTATE_ARRAY_OF_POINTER(_field, _state, _num, _version, _info, _type) {\
464 .name = (stringify(_field)), \
465 .version_id = (_version), \
466 .num = (_num), \
467 .info = &(_info), \
468 .size = sizeof(_type), \
469 .flags = VMS_ARRAY|VMS_ARRAY_OF_POINTER, \
470 .offset = vmstate_offset_array(_state, _field, _type, _num), \
471 }
472
473 #define VMSTATE_ARRAY_OF_POINTER_TO_STRUCT(_f, _s, _n, _v, _vmsd, _type) { \
474 .name = (stringify(_f)), \
475 .version_id = (_v), \
476 .num = (_n), \
477 .vmsd = &(_vmsd), \
478 .size = sizeof(_type *), \
479 .flags = VMS_ARRAY|VMS_STRUCT|VMS_ARRAY_OF_POINTER, \
480 .offset = vmstate_offset_array(_s, _f, _type*, _n), \
481 }
482
483 #define VMSTATE_STRUCT_SUB_ARRAY(_field, _state, _start, _num, _version, _vmsd, _type) { \
484 .name = (stringify(_field)), \
485 .version_id = (_version), \
486 .num = (_num), \
487 .vmsd = &(_vmsd), \
488 .size = sizeof(_type), \
489 .flags = VMS_STRUCT|VMS_ARRAY, \
490 .offset = vmstate_offset_sub_array(_state, _field, _type, _start), \
491 }
492
493 #define VMSTATE_STRUCT_ARRAY_TEST(_field, _state, _num, _test, _version, _vmsd, _type) { \
494 .name = (stringify(_field)), \
495 .num = (_num), \
496 .field_exists = (_test), \
497 .version_id = (_version), \
498 .vmsd = &(_vmsd), \
499 .size = sizeof(_type), \
500 .flags = VMS_STRUCT|VMS_ARRAY, \
501 .offset = vmstate_offset_array(_state, _field, _type, _num),\
502 }
503
504 #define VMSTATE_STRUCT_2DARRAY_TEST(_field, _state, _n1, _n2, _test, \
505 _version, _vmsd, _type) { \
506 .name = (stringify(_field)), \
507 .num = (_n1) * (_n2), \
508 .field_exists = (_test), \
509 .version_id = (_version), \
510 .vmsd = &(_vmsd), \
511 .size = sizeof(_type), \
512 .flags = VMS_STRUCT | VMS_ARRAY, \
513 .offset = vmstate_offset_2darray(_state, _field, _type, \
514 _n1, _n2), \
515 }
516
517 #define VMSTATE_STRUCT_VARRAY_UINT8(_field, _state, _field_num, _version, _vmsd, _type) { \
518 .name = (stringify(_field)), \
519 .num_offset = vmstate_offset_value(_state, _field_num, uint8_t), \
520 .version_id = (_version), \
521 .vmsd = &(_vmsd), \
522 .size = sizeof(_type), \
523 .flags = VMS_STRUCT|VMS_VARRAY_UINT8, \
524 .offset = offsetof(_state, _field), \
525 }
526
527 /* a variable length array (i.e. _type *_field) but we know the
528 * length
529 */
530 #define VMSTATE_STRUCT_VARRAY_POINTER_KNOWN(_field, _state, _num, _version, _vmsd, _type) { \
531 .name = (stringify(_field)), \
532 .num = (_num), \
533 .version_id = (_version), \
534 .vmsd = &(_vmsd), \
535 .size = sizeof(_type), \
536 .flags = VMS_STRUCT|VMS_ARRAY|VMS_POINTER, \
537 .offset = offsetof(_state, _field), \
538 }
539
540 #define VMSTATE_STRUCT_VARRAY_POINTER_INT32(_field, _state, _field_num, _vmsd, _type) { \
541 .name = (stringify(_field)), \
542 .version_id = 0, \
543 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \
544 .size = sizeof(_type), \
545 .vmsd = &(_vmsd), \
546 .flags = VMS_POINTER | VMS_VARRAY_INT32 | VMS_STRUCT, \
547 .offset = vmstate_offset_pointer(_state, _field, _type), \
548 }
549
550 #define VMSTATE_STRUCT_VARRAY_POINTER_UINT32(_field, _state, _field_num, _vmsd, _type) { \
551 .name = (stringify(_field)), \
552 .version_id = 0, \
553 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\
554 .size = sizeof(_type), \
555 .vmsd = &(_vmsd), \
556 .flags = VMS_POINTER | VMS_VARRAY_INT32 | VMS_STRUCT, \
557 .offset = vmstate_offset_pointer(_state, _field, _type), \
558 }
559
560 #define VMSTATE_STRUCT_VARRAY_POINTER_UINT16(_field, _state, _field_num, _vmsd, _type) { \
561 .name = (stringify(_field)), \
562 .version_id = 0, \
563 .num_offset = vmstate_offset_value(_state, _field_num, uint16_t),\
564 .size = sizeof(_type), \
565 .vmsd = &(_vmsd), \
566 .flags = VMS_POINTER | VMS_VARRAY_UINT16 | VMS_STRUCT, \
567 .offset = vmstate_offset_pointer(_state, _field, _type), \
568 }
569
570 #define VMSTATE_STRUCT_VARRAY_INT32(_field, _state, _field_num, _version, _vmsd, _type) { \
571 .name = (stringify(_field)), \
572 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \
573 .version_id = (_version), \
574 .vmsd = &(_vmsd), \
575 .size = sizeof(_type), \
576 .flags = VMS_STRUCT|VMS_VARRAY_INT32, \
577 .offset = offsetof(_state, _field), \
578 }
579
580 #define VMSTATE_STRUCT_VARRAY_UINT32(_field, _state, _field_num, _version, _vmsd, _type) { \
581 .name = (stringify(_field)), \
582 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t), \
583 .version_id = (_version), \
584 .vmsd = &(_vmsd), \
585 .size = sizeof(_type), \
586 .flags = VMS_STRUCT|VMS_VARRAY_UINT32, \
587 .offset = offsetof(_state, _field), \
588 }
589
590 #define VMSTATE_STRUCT_VARRAY_ALLOC(_field, _state, _field_num, _version, _vmsd, _type) {\
591 .name = (stringify(_field)), \
592 .version_id = (_version), \
593 .vmsd = &(_vmsd), \
594 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \
595 .size = sizeof(_type), \
596 .flags = VMS_STRUCT|VMS_VARRAY_INT32|VMS_ALLOC|VMS_POINTER, \
597 .offset = vmstate_offset_pointer(_state, _field, _type), \
598 }
599
600 #define VMSTATE_STATIC_BUFFER(_field, _state, _version, _test, _start, _size) { \
601 .name = (stringify(_field)), \
602 .version_id = (_version), \
603 .field_exists = (_test), \
604 .size = (_size - _start), \
605 .info = &vmstate_info_buffer, \
606 .flags = VMS_BUFFER, \
607 .offset = vmstate_offset_buffer(_state, _field) + _start, \
608 }
609
610 #define VMSTATE_VBUFFER_MULTIPLY(_field, _state, _version, _test, \
611 _field_size, _multiply) { \
612 .name = (stringify(_field)), \
613 .version_id = (_version), \
614 .field_exists = (_test), \
615 .size_offset = vmstate_offset_value(_state, _field_size, uint32_t),\
616 .size = (_multiply), \
617 .info = &vmstate_info_buffer, \
618 .flags = VMS_VBUFFER|VMS_POINTER|VMS_MULTIPLY, \
619 .offset = offsetof(_state, _field), \
620 }
621
622 #define VMSTATE_VBUFFER(_field, _state, _version, _test, _field_size) { \
623 .name = (stringify(_field)), \
624 .version_id = (_version), \
625 .field_exists = (_test), \
626 .size_offset = vmstate_offset_value(_state, _field_size, int32_t),\
627 .info = &vmstate_info_buffer, \
628 .flags = VMS_VBUFFER|VMS_POINTER, \
629 .offset = offsetof(_state, _field), \
630 }
631
632 #define VMSTATE_VBUFFER_UINT32(_field, _state, _version, _test, _field_size) { \
633 .name = (stringify(_field)), \
634 .version_id = (_version), \
635 .field_exists = (_test), \
636 .size_offset = vmstate_offset_value(_state, _field_size, uint32_t),\
637 .info = &vmstate_info_buffer, \
638 .flags = VMS_VBUFFER|VMS_POINTER, \
639 .offset = offsetof(_state, _field), \
640 }
641
642 #define VMSTATE_VBUFFER_ALLOC_UINT32(_field, _state, _version, \
643 _test, _field_size) { \
644 .name = (stringify(_field)), \
645 .version_id = (_version), \
646 .field_exists = (_test), \
647 .size_offset = vmstate_offset_value(_state, _field_size, uint32_t),\
648 .info = &vmstate_info_buffer, \
649 .flags = VMS_VBUFFER|VMS_POINTER|VMS_ALLOC, \
650 .offset = offsetof(_state, _field), \
651 }
652
653 #define VMSTATE_BUFFER_UNSAFE_INFO_TEST(_field, _state, _test, _version, _info, _size) { \
654 .name = (stringify(_field)), \
655 .version_id = (_version), \
656 .field_exists = (_test), \
657 .size = (_size), \
658 .info = &(_info), \
659 .flags = VMS_BUFFER, \
660 .offset = offsetof(_state, _field), \
661 }
662
663 #define VMSTATE_BUFFER_POINTER_UNSAFE(_field, _state, _version, _size) { \
664 .name = (stringify(_field)), \
665 .version_id = (_version), \
666 .size = (_size), \
667 .info = &vmstate_info_buffer, \
668 .flags = VMS_BUFFER|VMS_POINTER, \
669 .offset = offsetof(_state, _field), \
670 }
671
672 /* Allocate a temporary of type 'tmp_type', set tmp->parent to _state
673 * and execute the vmsd on the temporary. Note that we're working with
674 * the whole of _state here, not a field within it.
675 * We compile time check that:
676 * That _tmp_type contains a 'parent' member that's a pointer to the
677 * '_state' type
678 * That the pointer is right at the start of _tmp_type.
679 */
680 #define VMSTATE_WITH_TMP(_state, _tmp_type, _vmsd) { \
681 .name = "tmp", \
682 .size = sizeof(_tmp_type) + \
683 QEMU_BUILD_BUG_ON_ZERO(offsetof(_tmp_type, parent) != 0) + \
684 type_check_pointer(_state, \
685 typeof_field(_tmp_type, parent)), \
686 .vmsd = &(_vmsd), \
687 .info = &vmstate_info_tmp, \
688 }
689
690 #define VMSTATE_UNUSED_BUFFER(_test, _version, _size) { \
691 .name = "unused", \
692 .field_exists = (_test), \
693 .version_id = (_version), \
694 .size = (_size), \
695 .info = &vmstate_info_unused_buffer, \
696 .flags = VMS_BUFFER, \
697 }
698
699 /* Discard size * field_num bytes, where field_num is a uint32 member */
700 #define VMSTATE_UNUSED_VARRAY_UINT32(_state, _test, _version, _field_num, _size) {\
701 .name = "unused", \
702 .field_exists = (_test), \
703 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\
704 .version_id = (_version), \
705 .size = (_size), \
706 .info = &vmstate_info_unused_buffer, \
707 .flags = VMS_VARRAY_UINT32 | VMS_BUFFER, \
708 }
709
710 /* _field_size should be a int32_t field in the _state struct giving the
711 * size of the bitmap _field in bits.
712 */
713 #define VMSTATE_BITMAP(_field, _state, _version, _field_size) { \
714 .name = (stringify(_field)), \
715 .version_id = (_version), \
716 .size_offset = vmstate_offset_value(_state, _field_size, int32_t),\
717 .info = &vmstate_info_bitmap, \
718 .flags = VMS_VBUFFER|VMS_POINTER, \
719 .offset = offsetof(_state, _field), \
720 }
721
722 /* For migrating a QTAILQ.
723 * Target QTAILQ needs be properly initialized.
724 * _type: type of QTAILQ element
725 * _next: name of QTAILQ entry field in QTAILQ element
726 * _vmsd: VMSD for QTAILQ element
727 * size: size of QTAILQ element
728 * start: offset of QTAILQ entry in QTAILQ element
729 */
730 #define VMSTATE_QTAILQ_V(_field, _state, _version, _vmsd, _type, _next) \
731 { \
732 .name = (stringify(_field)), \
733 .version_id = (_version), \
734 .vmsd = &(_vmsd), \
735 .size = sizeof(_type), \
736 .info = &vmstate_info_qtailq, \
737 .offset = offsetof(_state, _field), \
738 .start = offsetof(_type, _next), \
739 }
740
741 /* _f : field name
742 _f_n : num of elements field_name
743 _n : num of elements
744 _s : struct state name
745 _v : version
746 */
747
748 #define VMSTATE_SINGLE(_field, _state, _version, _info, _type) \
749 VMSTATE_SINGLE_TEST(_field, _state, NULL, _version, _info, _type)
750
751 #define VMSTATE_VSTRUCT(_field, _state, _vmsd, _type, _struct_version)\
752 VMSTATE_VSTRUCT_TEST(_field, _state, NULL, 0, _vmsd, _type, _struct_version)
753
754 #define VMSTATE_VSTRUCT_V(_field, _state, _version, _vmsd, _type, _struct_version) \
755 VMSTATE_VSTRUCT_TEST(_field, _state, NULL, _version, _vmsd, _type, \
756 _struct_version)
757
758 #define VMSTATE_STRUCT(_field, _state, _version, _vmsd, _type) \
759 VMSTATE_STRUCT_TEST(_field, _state, NULL, _version, _vmsd, _type)
760
761 #define VMSTATE_STRUCT_POINTER(_field, _state, _vmsd, _type) \
762 VMSTATE_STRUCT_POINTER_V(_field, _state, 0, _vmsd, _type)
763
764 #define VMSTATE_STRUCT_POINTER_TEST(_field, _state, _test, _vmsd, _type) \
765 VMSTATE_STRUCT_POINTER_TEST_V(_field, _state, _test, 0, _vmsd, _type)
766
767 #define VMSTATE_STRUCT_ARRAY(_field, _state, _num, _version, _vmsd, _type) \
768 VMSTATE_STRUCT_ARRAY_TEST(_field, _state, _num, NULL, _version, \
769 _vmsd, _type)
770
771 #define VMSTATE_STRUCT_2DARRAY(_field, _state, _n1, _n2, _version, \
772 _vmsd, _type) \
773 VMSTATE_STRUCT_2DARRAY_TEST(_field, _state, _n1, _n2, NULL, \
774 _version, _vmsd, _type)
775
776 #define VMSTATE_BUFFER_UNSAFE_INFO(_field, _state, _version, _info, _size) \
777 VMSTATE_BUFFER_UNSAFE_INFO_TEST(_field, _state, NULL, _version, _info, \
778 _size)
779
780 #define VMSTATE_BOOL_V(_f, _s, _v) \
781 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_bool, bool)
782
783 #define VMSTATE_INT8_V(_f, _s, _v) \
784 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int8, int8_t)
785 #define VMSTATE_INT16_V(_f, _s, _v) \
786 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int16, int16_t)
787 #define VMSTATE_INT32_V(_f, _s, _v) \
788 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int32, int32_t)
789 #define VMSTATE_INT64_V(_f, _s, _v) \
790 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int64, int64_t)
791
792 #define VMSTATE_UINT8_V(_f, _s, _v) \
793 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint8, uint8_t)
794 #define VMSTATE_UINT16_V(_f, _s, _v) \
795 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint16, uint16_t)
796 #define VMSTATE_UINT32_V(_f, _s, _v) \
797 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint32, uint32_t)
798 #define VMSTATE_UINT64_V(_f, _s, _v) \
799 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint64, uint64_t)
800
801 #define VMSTATE_BOOL(_f, _s) \
802 VMSTATE_BOOL_V(_f, _s, 0)
803
804 #define VMSTATE_INT8(_f, _s) \
805 VMSTATE_INT8_V(_f, _s, 0)
806 #define VMSTATE_INT16(_f, _s) \
807 VMSTATE_INT16_V(_f, _s, 0)
808 #define VMSTATE_INT32(_f, _s) \
809 VMSTATE_INT32_V(_f, _s, 0)
810 #define VMSTATE_INT64(_f, _s) \
811 VMSTATE_INT64_V(_f, _s, 0)
812
813 #define VMSTATE_UINT8(_f, _s) \
814 VMSTATE_UINT8_V(_f, _s, 0)
815 #define VMSTATE_UINT16(_f, _s) \
816 VMSTATE_UINT16_V(_f, _s, 0)
817 #define VMSTATE_UINT32(_f, _s) \
818 VMSTATE_UINT32_V(_f, _s, 0)
819 #define VMSTATE_UINT64(_f, _s) \
820 VMSTATE_UINT64_V(_f, _s, 0)
821
822 #define VMSTATE_UINT8_EQUAL(_f, _s, _err_hint) \
823 VMSTATE_SINGLE_FULL(_f, _s, 0, 0, \
824 vmstate_info_uint8_equal, uint8_t, _err_hint)
825
826 #define VMSTATE_UINT16_EQUAL(_f, _s, _err_hint) \
827 VMSTATE_SINGLE_FULL(_f, _s, 0, 0, \
828 vmstate_info_uint16_equal, uint16_t, _err_hint)
829
830 #define VMSTATE_UINT16_EQUAL_V(_f, _s, _v, _err_hint) \
831 VMSTATE_SINGLE_FULL(_f, _s, 0, _v, \
832 vmstate_info_uint16_equal, uint16_t, _err_hint)
833
834 #define VMSTATE_INT32_EQUAL(_f, _s, _err_hint) \
835 VMSTATE_SINGLE_FULL(_f, _s, 0, 0, \
836 vmstate_info_int32_equal, int32_t, _err_hint)
837
838 #define VMSTATE_UINT32_EQUAL_V(_f, _s, _v, _err_hint) \
839 VMSTATE_SINGLE_FULL(_f, _s, 0, _v, \
840 vmstate_info_uint32_equal, uint32_t, _err_hint)
841
842 #define VMSTATE_UINT32_EQUAL(_f, _s, _err_hint) \
843 VMSTATE_UINT32_EQUAL_V(_f, _s, 0, _err_hint)
844
845 #define VMSTATE_UINT64_EQUAL_V(_f, _s, _v, _err_hint) \
846 VMSTATE_SINGLE_FULL(_f, _s, 0, _v, \
847 vmstate_info_uint64_equal, uint64_t, _err_hint)
848
849 #define VMSTATE_UINT64_EQUAL(_f, _s, _err_hint) \
850 VMSTATE_UINT64_EQUAL_V(_f, _s, 0, _err_hint)
851
852 #define VMSTATE_INT32_POSITIVE_LE(_f, _s) \
853 VMSTATE_SINGLE(_f, _s, 0, vmstate_info_int32_le, int32_t)
854
855 #define VMSTATE_INT8_TEST(_f, _s, _t) \
856 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_int8, int8_t)
857
858 #define VMSTATE_INT16_TEST(_f, _s, _t) \
859 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_int16, int16_t)
860
861 #define VMSTATE_INT32_TEST(_f, _s, _t) \
862 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_int32, int32_t)
863
864 #define VMSTATE_INT64_TEST(_f, _s, _t) \
865 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_int64, int64_t)
866
867 #define VMSTATE_UINT8_TEST(_f, _s, _t) \
868 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint8, uint8_t)
869
870 #define VMSTATE_UINT16_TEST(_f, _s, _t) \
871 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint16, uint16_t)
872
873 #define VMSTATE_UINT32_TEST(_f, _s, _t) \
874 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint32, uint32_t)
875
876 #define VMSTATE_UINT64_TEST(_f, _s, _t) \
877 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint64, uint64_t)
878
879
880 #define VMSTATE_FLOAT64_V(_f, _s, _v) \
881 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_float64, float64)
882
883 #define VMSTATE_FLOAT64(_f, _s) \
884 VMSTATE_FLOAT64_V(_f, _s, 0)
885
886 #define VMSTATE_TIMER_PTR_TEST(_f, _s, _test) \
887 VMSTATE_POINTER_TEST(_f, _s, _test, vmstate_info_timer, QEMUTimer *)
888
889 #define VMSTATE_TIMER_PTR_V(_f, _s, _v) \
890 VMSTATE_POINTER(_f, _s, _v, vmstate_info_timer, QEMUTimer *)
891
892 #define VMSTATE_TIMER_PTR(_f, _s) \
893 VMSTATE_TIMER_PTR_V(_f, _s, 0)
894
895 #define VMSTATE_TIMER_PTR_ARRAY(_f, _s, _n) \
896 VMSTATE_ARRAY_OF_POINTER(_f, _s, _n, 0, vmstate_info_timer, QEMUTimer *)
897
898 #define VMSTATE_TIMER_TEST(_f, _s, _test) \
899 VMSTATE_SINGLE_TEST(_f, _s, _test, 0, vmstate_info_timer, QEMUTimer)
900
901 #define VMSTATE_TIMER_V(_f, _s, _v) \
902 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_timer, QEMUTimer)
903
904 #define VMSTATE_TIMER(_f, _s) \
905 VMSTATE_TIMER_V(_f, _s, 0)
906
907 #define VMSTATE_TIMER_ARRAY(_f, _s, _n) \
908 VMSTATE_ARRAY(_f, _s, _n, 0, vmstate_info_timer, QEMUTimer)
909
910 #define VMSTATE_BOOL_ARRAY_V(_f, _s, _n, _v) \
911 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_bool, bool)
912
913 #define VMSTATE_BOOL_ARRAY(_f, _s, _n) \
914 VMSTATE_BOOL_ARRAY_V(_f, _s, _n, 0)
915
916 #define VMSTATE_BOOL_SUB_ARRAY(_f, _s, _start, _num) \
917 VMSTATE_SUB_ARRAY(_f, _s, _start, _num, 0, vmstate_info_bool, bool)
918
919 #define VMSTATE_UINT16_ARRAY_V(_f, _s, _n, _v) \
920 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint16, uint16_t)
921
922 #define VMSTATE_UINT16_2DARRAY_V(_f, _s, _n1, _n2, _v) \
923 VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint16, uint16_t)
924
925 #define VMSTATE_UINT16_ARRAY(_f, _s, _n) \
926 VMSTATE_UINT16_ARRAY_V(_f, _s, _n, 0)
927
928 #define VMSTATE_UINT16_2DARRAY(_f, _s, _n1, _n2) \
929 VMSTATE_UINT16_2DARRAY_V(_f, _s, _n1, _n2, 0)
930
931 #define VMSTATE_UINT8_2DARRAY_V(_f, _s, _n1, _n2, _v) \
932 VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint8, uint8_t)
933
934 #define VMSTATE_UINT8_ARRAY_V(_f, _s, _n, _v) \
935 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint8, uint8_t)
936
937 #define VMSTATE_UINT8_ARRAY(_f, _s, _n) \
938 VMSTATE_UINT8_ARRAY_V(_f, _s, _n, 0)
939
940 #define VMSTATE_UINT8_SUB_ARRAY(_f, _s, _start, _num) \
941 VMSTATE_SUB_ARRAY(_f, _s, _start, _num, 0, vmstate_info_uint8, uint8_t)
942
943 #define VMSTATE_UINT8_2DARRAY(_f, _s, _n1, _n2) \
944 VMSTATE_UINT8_2DARRAY_V(_f, _s, _n1, _n2, 0)
945
946 #define VMSTATE_UINT32_ARRAY_V(_f, _s, _n, _v) \
947 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint32, uint32_t)
948
949 #define VMSTATE_UINT32_2DARRAY_V(_f, _s, _n1, _n2, _v) \
950 VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint32, uint32_t)
951
952 #define VMSTATE_UINT32_ARRAY(_f, _s, _n) \
953 VMSTATE_UINT32_ARRAY_V(_f, _s, _n, 0)
954
955 #define VMSTATE_UINT32_SUB_ARRAY(_f, _s, _start, _num) \
956 VMSTATE_SUB_ARRAY(_f, _s, _start, _num, 0, vmstate_info_uint32, uint32_t)
957
958 #define VMSTATE_UINT32_2DARRAY(_f, _s, _n1, _n2) \
959 VMSTATE_UINT32_2DARRAY_V(_f, _s, _n1, _n2, 0)
960
961 #define VMSTATE_UINT64_ARRAY_V(_f, _s, _n, _v) \
962 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint64, uint64_t)
963
964 #define VMSTATE_UINT64_ARRAY(_f, _s, _n) \
965 VMSTATE_UINT64_ARRAY_V(_f, _s, _n, 0)
966
967 #define VMSTATE_UINT64_SUB_ARRAY(_f, _s, _start, _num) \
968 VMSTATE_SUB_ARRAY(_f, _s, _start, _num, 0, vmstate_info_uint64, uint64_t)
969
970 #define VMSTATE_UINT64_2DARRAY(_f, _s, _n1, _n2) \
971 VMSTATE_UINT64_2DARRAY_V(_f, _s, _n1, _n2, 0)
972
973 #define VMSTATE_UINT64_2DARRAY_V(_f, _s, _n1, _n2, _v) \
974 VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint64, uint64_t)
975
976 #define VMSTATE_INT16_ARRAY_V(_f, _s, _n, _v) \
977 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int16, int16_t)
978
979 #define VMSTATE_INT16_ARRAY(_f, _s, _n) \
980 VMSTATE_INT16_ARRAY_V(_f, _s, _n, 0)
981
982 #define VMSTATE_INT32_ARRAY_V(_f, _s, _n, _v) \
983 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int32, int32_t)
984
985 #define VMSTATE_INT32_ARRAY(_f, _s, _n) \
986 VMSTATE_INT32_ARRAY_V(_f, _s, _n, 0)
987
988 #define VMSTATE_INT64_ARRAY_V(_f, _s, _n, _v) \
989 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int64, int64_t)
990
991 #define VMSTATE_INT64_ARRAY(_f, _s, _n) \
992 VMSTATE_INT64_ARRAY_V(_f, _s, _n, 0)
993
994 #define VMSTATE_FLOAT64_ARRAY_V(_f, _s, _n, _v) \
995 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_float64, float64)
996
997 #define VMSTATE_FLOAT64_ARRAY(_f, _s, _n) \
998 VMSTATE_FLOAT64_ARRAY_V(_f, _s, _n, 0)
999
1000 #define VMSTATE_CPUDOUBLE_ARRAY_V(_f, _s, _n, _v) \
1001 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_cpudouble, CPU_DoubleU)
1002
1003 #define VMSTATE_CPUDOUBLE_ARRAY(_f, _s, _n) \
1004 VMSTATE_CPUDOUBLE_ARRAY_V(_f, _s, _n, 0)
1005
1006 #define VMSTATE_BUFFER_V(_f, _s, _v) \
1007 VMSTATE_STATIC_BUFFER(_f, _s, _v, NULL, 0, sizeof(typeof_field(_s, _f)))
1008
1009 #define VMSTATE_BUFFER(_f, _s) \
1010 VMSTATE_BUFFER_V(_f, _s, 0)
1011
1012 #define VMSTATE_PARTIAL_BUFFER(_f, _s, _size) \
1013 VMSTATE_STATIC_BUFFER(_f, _s, 0, NULL, 0, _size)
1014
1015 #define VMSTATE_BUFFER_START_MIDDLE_V(_f, _s, _start, _v) \
1016 VMSTATE_STATIC_BUFFER(_f, _s, _v, NULL, _start, sizeof(typeof_field(_s, _f)))
1017
1018 #define VMSTATE_BUFFER_START_MIDDLE(_f, _s, _start) \
1019 VMSTATE_BUFFER_START_MIDDLE_V(_f, _s, _start, 0)
1020
1021 #define VMSTATE_PARTIAL_VBUFFER(_f, _s, _size) \
1022 VMSTATE_VBUFFER(_f, _s, 0, NULL, _size)
1023
1024 #define VMSTATE_PARTIAL_VBUFFER_UINT32(_f, _s, _size) \
1025 VMSTATE_VBUFFER_UINT32(_f, _s, 0, NULL, _size)
1026
1027 #define VMSTATE_BUFFER_TEST(_f, _s, _test) \
1028 VMSTATE_STATIC_BUFFER(_f, _s, 0, _test, 0, sizeof(typeof_field(_s, _f)))
1029
1030 #define VMSTATE_BUFFER_UNSAFE(_field, _state, _version, _size) \
1031 VMSTATE_BUFFER_UNSAFE_INFO(_field, _state, _version, vmstate_info_buffer, _size)
1032
1033 #define VMSTATE_UNUSED_V(_v, _size) \
1034 VMSTATE_UNUSED_BUFFER(NULL, _v, _size)
1035
1036 #define VMSTATE_UNUSED(_size) \
1037 VMSTATE_UNUSED_V(0, _size)
1038
1039 #define VMSTATE_UNUSED_TEST(_test, _size) \
1040 VMSTATE_UNUSED_BUFFER(_test, 0, _size)
1041
1042 #define VMSTATE_END_OF_LIST() \
1043 {}
1044
1045 int vmstate_load_state(QEMUFile *f, const VMStateDescription *vmsd,
1046 void *opaque, int version_id);
1047 int vmstate_save_state(QEMUFile *f, const VMStateDescription *vmsd,
1048 void *opaque, QJSON *vmdesc);
1049 int vmstate_save_state_v(QEMUFile *f, const VMStateDescription *vmsd,
1050 void *opaque, QJSON *vmdesc, int version_id);
1051
1052 bool vmstate_save_needed(const VMStateDescription *vmsd, void *opaque);
1053
1054 /* Returns: 0 on success, -1 on failure */
1055 int vmstate_register_with_alias_id(DeviceState *dev, int instance_id,
1056 const VMStateDescription *vmsd,
1057 void *base, int alias_id,
1058 int required_for_version,
1059 Error **errp);
1060
1061 /* Returns: 0 on success, -1 on failure */
1062 static inline int vmstate_register(DeviceState *dev, int instance_id,
1063 const VMStateDescription *vmsd,
1064 void *opaque)
1065 {
1066 return vmstate_register_with_alias_id(dev, instance_id, vmsd,
1067 opaque, -1, 0, NULL);
1068 }
1069
1070 void vmstate_unregister(DeviceState *dev, const VMStateDescription *vmsd,
1071 void *opaque);
1072
1073 struct MemoryRegion;
1074 void vmstate_register_ram(struct MemoryRegion *memory, DeviceState *dev);
1075 void vmstate_unregister_ram(struct MemoryRegion *memory, DeviceState *dev);
1076 void vmstate_register_ram_global(struct MemoryRegion *memory);
1077
1078 bool vmstate_check_only_migratable(const VMStateDescription *vmsd);
1079
1080 #endif
QEmu