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linux-user: fix to handle variably sized SIOCGSTAMP with new kernels
[qemu/ar7.git] / include / migration / vmstate.h
blobca68584eba4dc3fbe18d7936cbfc832fe95a8af5
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 typedef struct VMStateInfo VMStateInfo;
31 typedef struct VMStateDescription VMStateDescription;
32 typedef struct VMStateField VMStateField;
33
34 /* VMStateInfo allows customized migration of objects that don't fit in
35 * any category in VMStateFlags. Additional information is always passed
36 * into get and put in terms of field and vmdesc parameters. However
37 * these two parameters should only be used in cases when customized
38 * handling is needed, such as QTAILQ. For primitive data types such as
39 * integer, field and vmdesc parameters should be ignored inside get/put.
40 */
41 struct VMStateInfo {
42 const char *name;
43 int (*get)(QEMUFile *f, void *pv, size_t size, const VMStateField *field);
44 int (*put)(QEMUFile *f, void *pv, size_t size, const VMStateField *field,
45 QJSON *vmdesc);
46 };
47
48 enum VMStateFlags {
49 /* Ignored */
50 VMS_SINGLE = 0x001,
51
52 /* The struct member at opaque + VMStateField.offset is a pointer
53 * to the actual field (e.g. struct a { uint8_t *b;
54 * }). Dereference the pointer before using it as basis for
55 * further pointer arithmetic (see e.g. VMS_ARRAY). Does not
56 * affect the meaning of VMStateField.num_offset or
57 * VMStateField.size_offset; see VMS_VARRAY* and VMS_VBUFFER for
58 * those. */
59 VMS_POINTER = 0x002,
60
61 /* The field is an array of fixed size. VMStateField.num contains
62 * the number of entries in the array. The size of each entry is
63 * given by VMStateField.size and / or opaque +
64 * VMStateField.size_offset; see VMS_VBUFFER and
65 * VMS_MULTIPLY. Each array entry will be processed individually
66 * (VMStateField.info.get()/put() if VMS_STRUCT is not set,
67 * recursion into VMStateField.vmsd if VMS_STRUCT is set). May not
68 * be combined with VMS_VARRAY*. */
69 VMS_ARRAY = 0x004,
70
71 /* The field is itself a struct, containing one or more
72 * fields. Recurse into VMStateField.vmsd. Most useful in
73 * combination with VMS_ARRAY / VMS_VARRAY*, recursing into each
74 * array entry. */
75 VMS_STRUCT = 0x008,
76
77 /* The field is an array of variable size. The int32_t at opaque +
78 * VMStateField.num_offset contains the number of entries in the
79 * array. See the VMS_ARRAY description regarding array handling
80 * in general. May not be combined with VMS_ARRAY or any other
81 * VMS_VARRAY*. */
82 VMS_VARRAY_INT32 = 0x010,
83
84 /* Ignored */
85 VMS_BUFFER = 0x020,
86
87 /* The field is a (fixed-size or variable-size) array of pointers
88 * (e.g. struct a { uint8_t *b[]; }). Dereference each array entry
89 * before using it. Note: Does not imply any one of VMS_ARRAY /
90 * VMS_VARRAY*; these need to be set explicitly. */
91 VMS_ARRAY_OF_POINTER = 0x040,
92
93 /* The field is an array of variable size. The uint16_t at opaque
94 * + VMStateField.num_offset (subject to VMS_MULTIPLY_ELEMENTS)
95 * contains the number of entries in the array. See the VMS_ARRAY
96 * description regarding array handling in general. May not be
97 * combined with VMS_ARRAY or any other VMS_VARRAY*. */
98 VMS_VARRAY_UINT16 = 0x080,
99
100 /* The size of the individual entries (a single array entry if
101 * VMS_ARRAY or any of VMS_VARRAY* are set, or the field itself if
102 * neither is set) is variable (i.e. not known at compile-time),
103 * but the same for all entries. Use the int32_t at opaque +
104 * VMStateField.size_offset (subject to VMS_MULTIPLY) to determine
105 * the size of each (and every) entry. */
106 VMS_VBUFFER = 0x100,
107
108 /* Multiply the entry size given by the int32_t at opaque +
109 * VMStateField.size_offset (see VMS_VBUFFER description) with
110 * VMStateField.size to determine the number of bytes to be
111 * allocated. Only valid in combination with VMS_VBUFFER. */
112 VMS_MULTIPLY = 0x200,
113
114 /* The field is an array of variable size. The uint8_t at opaque +
115 * VMStateField.num_offset (subject to VMS_MULTIPLY_ELEMENTS)
116 * contains the number of entries in the array. See the VMS_ARRAY
117 * description regarding array handling in general. May not be
118 * combined with VMS_ARRAY or any other VMS_VARRAY*. */
119 VMS_VARRAY_UINT8 = 0x400,
120
121 /* The field is an array of variable size. The uint32_t at opaque
122 * + VMStateField.num_offset (subject to VMS_MULTIPLY_ELEMENTS)
123 * contains the number of entries in the array. See the VMS_ARRAY
124 * description regarding array handling in general. May not be
125 * combined with VMS_ARRAY or any other VMS_VARRAY*. */
126 VMS_VARRAY_UINT32 = 0x800,
127
128 /* Fail loading the serialised VM state if this field is missing
129 * from the input. */
130 VMS_MUST_EXIST = 0x1000,
131
132 /* When loading serialised VM state, allocate memory for the
133 * (entire) field. Only valid in combination with
134 * VMS_POINTER. Note: Not all combinations with other flags are
135 * currently supported, e.g. VMS_ALLOC|VMS_ARRAY_OF_POINTER won't
136 * cause the individual entries to be allocated. */
137 VMS_ALLOC = 0x2000,
138
139 /* Multiply the number of entries given by the integer at opaque +
140 * VMStateField.num_offset (see VMS_VARRAY*) with VMStateField.num
141 * to determine the number of entries in the array. Only valid in
142 * combination with one of VMS_VARRAY*. */
143 VMS_MULTIPLY_ELEMENTS = 0x4000,
144
145 /* A structure field that is like VMS_STRUCT, but uses
146 * VMStateField.struct_version_id to tell which version of the
147 * structure we are referencing to use. */
148 VMS_VSTRUCT = 0x8000,
149 };
150
151 typedef enum {
152 MIG_PRI_DEFAULT = 0,
153 MIG_PRI_IOMMU, /* Must happen before PCI devices */
154 MIG_PRI_PCI_BUS, /* Must happen before IOMMU */
155 MIG_PRI_GICV3_ITS, /* Must happen before PCI devices */
156 MIG_PRI_GICV3, /* Must happen before the ITS */
157 MIG_PRI_MAX,
158 } MigrationPriority;
159
160 struct VMStateField {
161 const char *name;
162 const char *err_hint;
163 size_t offset;
164 size_t size;
165 size_t start;
166 int num;
167 size_t num_offset;
168 size_t size_offset;
169 const VMStateInfo *info;
170 enum VMStateFlags flags;
171 const VMStateDescription *vmsd;
172 int version_id;
173 int struct_version_id;
174 bool (*field_exists)(void *opaque, int version_id);
175 };
176
177 struct VMStateDescription {
178 const char *name;
179 int unmigratable;
180 int version_id;
181 int minimum_version_id;
182 int minimum_version_id_old;
183 MigrationPriority priority;
184 LoadStateHandler *load_state_old;
185 int (*pre_load)(void *opaque);
186 int (*post_load)(void *opaque, int version_id);
187 int (*pre_save)(void *opaque);
188 int (*post_save)(void *opaque);
189 bool (*needed)(void *opaque);
190 const VMStateField *fields;
191 const VMStateDescription **subsections;
192 };
193
194 extern const VMStateDescription vmstate_dummy;
195
196 extern const VMStateInfo vmstate_info_bool;
197
198 extern const VMStateInfo vmstate_info_int8;
199 extern const VMStateInfo vmstate_info_int16;
200 extern const VMStateInfo vmstate_info_int32;
201 extern const VMStateInfo vmstate_info_int64;
202
203 extern const VMStateInfo vmstate_info_uint8_equal;
204 extern const VMStateInfo vmstate_info_uint16_equal;
205 extern const VMStateInfo vmstate_info_int32_equal;
206 extern const VMStateInfo vmstate_info_uint32_equal;
207 extern const VMStateInfo vmstate_info_uint64_equal;
208 extern const VMStateInfo vmstate_info_int32_le;
209
210 extern const VMStateInfo vmstate_info_uint8;
211 extern const VMStateInfo vmstate_info_uint16;
212 extern const VMStateInfo vmstate_info_uint32;
213 extern const VMStateInfo vmstate_info_uint64;
214
215 /** Put this in the stream when migrating a null pointer.*/
216 #define VMS_NULLPTR_MARKER (0x30U) /* '0' */
217 extern const VMStateInfo vmstate_info_nullptr;
218
219 extern const VMStateInfo vmstate_info_float64;
220 extern const VMStateInfo vmstate_info_cpudouble;
221
222 extern const VMStateInfo vmstate_info_timer;
223 extern const VMStateInfo vmstate_info_buffer;
224 extern const VMStateInfo vmstate_info_unused_buffer;
225 extern const VMStateInfo vmstate_info_tmp;
226 extern const VMStateInfo vmstate_info_bitmap;
227 extern const VMStateInfo vmstate_info_qtailq;
228
229 #define type_check_2darray(t1,t2,n,m) ((t1(*)[n][m])0 - (t2*)0)
230 #define type_check_array(t1,t2,n) ((t1(*)[n])0 - (t2*)0)
231 #define type_check_pointer(t1,t2) ((t1**)0 - (t2*)0)
232
233 #define vmstate_offset_value(_state, _field, _type) \
234 (offsetof(_state, _field) + \
235 type_check(_type, typeof_field(_state, _field)))
236
237 #define vmstate_offset_pointer(_state, _field, _type) \
238 (offsetof(_state, _field) + \
239 type_check_pointer(_type, typeof_field(_state, _field)))
240
241 #define vmstate_offset_array(_state, _field, _type, _num) \
242 (offsetof(_state, _field) + \
243 type_check_array(_type, typeof_field(_state, _field), _num))
244
245 #define vmstate_offset_2darray(_state, _field, _type, _n1, _n2) \
246 (offsetof(_state, _field) + \
247 type_check_2darray(_type, typeof_field(_state, _field), _n1, _n2))
248
249 #define vmstate_offset_sub_array(_state, _field, _type, _start) \
250 vmstate_offset_value(_state, _field[_start], _type)
251
252 #define vmstate_offset_buffer(_state, _field) \
253 vmstate_offset_array(_state, _field, uint8_t, \
254 sizeof(typeof_field(_state, _field)))
255
256 /* In the macros below, if there is a _version, that means the macro's
257 * field will be processed only if the version being received is >=
258 * the _version specified. In general, if you add a new field, you
259 * would increment the structure's version and put that version
260 * number into the new field so it would only be processed with the
261 * new version.
262 *
263 * In particular, for VMSTATE_STRUCT() and friends the _version does
264 * *NOT* pick the version of the sub-structure. It works just as
265 * specified above. The version of the top-level structure received
266 * is passed down to all sub-structures. This means that the
267 * sub-structures must have version that are compatible with all the
268 * structures that use them.
269 *
270 * If you want to specify the version of the sub-structure, use
271 * VMSTATE_VSTRUCT(), which allows the specific sub-structure version
272 * to be directly specified.
273 */
274
275 #define VMSTATE_SINGLE_TEST(_field, _state, _test, _version, _info, _type) { \
276 .name = (stringify(_field)), \
277 .version_id = (_version), \
278 .field_exists = (_test), \
279 .size = sizeof(_type), \
280 .info = &(_info), \
281 .flags = VMS_SINGLE, \
282 .offset = vmstate_offset_value(_state, _field, _type), \
283 }
284
285 #define VMSTATE_SINGLE_FULL(_field, _state, _test, _version, _info, \
286 _type, _err_hint) { \
287 .name = (stringify(_field)), \
288 .err_hint = (_err_hint), \
289 .version_id = (_version), \
290 .field_exists = (_test), \
291 .size = sizeof(_type), \
292 .info = &(_info), \
293 .flags = VMS_SINGLE, \
294 .offset = vmstate_offset_value(_state, _field, _type), \
295 }
296
297 /* Validate state using a boolean predicate. */
298 #define VMSTATE_VALIDATE(_name, _test) { \
299 .name = (_name), \
300 .field_exists = (_test), \
301 .flags = VMS_ARRAY | VMS_MUST_EXIST, \
302 .num = 0, /* 0 elements: no data, only run _test */ \
303 }
304
305 #define VMSTATE_POINTER(_field, _state, _version, _info, _type) { \
306 .name = (stringify(_field)), \
307 .version_id = (_version), \
308 .info = &(_info), \
309 .size = sizeof(_type), \
310 .flags = VMS_SINGLE|VMS_POINTER, \
311 .offset = vmstate_offset_value(_state, _field, _type), \
312 }
313
314 #define VMSTATE_POINTER_TEST(_field, _state, _test, _info, _type) { \
315 .name = (stringify(_field)), \
316 .info = &(_info), \
317 .field_exists = (_test), \
318 .size = sizeof(_type), \
319 .flags = VMS_SINGLE|VMS_POINTER, \
320 .offset = vmstate_offset_value(_state, _field, _type), \
321 }
322
323 #define VMSTATE_ARRAY(_field, _state, _num, _version, _info, _type) {\
324 .name = (stringify(_field)), \
325 .version_id = (_version), \
326 .num = (_num), \
327 .info = &(_info), \
328 .size = sizeof(_type), \
329 .flags = VMS_ARRAY, \
330 .offset = vmstate_offset_array(_state, _field, _type, _num), \
331 }
332
333 #define VMSTATE_2DARRAY(_field, _state, _n1, _n2, _version, _info, _type) { \
334 .name = (stringify(_field)), \
335 .version_id = (_version), \
336 .num = (_n1) * (_n2), \
337 .info = &(_info), \
338 .size = sizeof(_type), \
339 .flags = VMS_ARRAY, \
340 .offset = vmstate_offset_2darray(_state, _field, _type, _n1, _n2), \
341 }
342
343 #define VMSTATE_VARRAY_MULTIPLY(_field, _state, _field_num, _multiply, _info, _type) { \
344 .name = (stringify(_field)), \
345 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\
346 .num = (_multiply), \
347 .info = &(_info), \
348 .size = sizeof(_type), \
349 .flags = VMS_VARRAY_UINT32|VMS_MULTIPLY_ELEMENTS, \
350 .offset = offsetof(_state, _field), \
351 }
352
353 #define VMSTATE_ARRAY_TEST(_field, _state, _num, _test, _info, _type) {\
354 .name = (stringify(_field)), \
355 .field_exists = (_test), \
356 .num = (_num), \
357 .info = &(_info), \
358 .size = sizeof(_type), \
359 .flags = VMS_ARRAY, \
360 .offset = vmstate_offset_array(_state, _field, _type, _num),\
361 }
362
363 #define VMSTATE_SUB_ARRAY(_field, _state, _start, _num, _version, _info, _type) { \
364 .name = (stringify(_field)), \
365 .version_id = (_version), \
366 .num = (_num), \
367 .info = &(_info), \
368 .size = sizeof(_type), \
369 .flags = VMS_ARRAY, \
370 .offset = vmstate_offset_sub_array(_state, _field, _type, _start), \
371 }
372
373 #define VMSTATE_ARRAY_INT32_UNSAFE(_field, _state, _field_num, _info, _type) {\
374 .name = (stringify(_field)), \
375 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \
376 .info = &(_info), \
377 .size = sizeof(_type), \
378 .flags = VMS_VARRAY_INT32, \
379 .offset = offsetof(_state, _field), \
380 }
381
382 #define VMSTATE_VARRAY_INT32(_field, _state, _field_num, _version, _info, _type) {\
383 .name = (stringify(_field)), \
384 .version_id = (_version), \
385 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \
386 .info = &(_info), \
387 .size = sizeof(_type), \
388 .flags = VMS_VARRAY_INT32|VMS_POINTER, \
389 .offset = vmstate_offset_pointer(_state, _field, _type), \
390 }
391
392 #define VMSTATE_VARRAY_UINT32(_field, _state, _field_num, _version, _info, _type) {\
393 .name = (stringify(_field)), \
394 .version_id = (_version), \
395 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\
396 .info = &(_info), \
397 .size = sizeof(_type), \
398 .flags = VMS_VARRAY_UINT32|VMS_POINTER, \
399 .offset = vmstate_offset_pointer(_state, _field, _type), \
400 }
401
402 #define VMSTATE_VARRAY_UINT32_ALLOC(_field, _state, _field_num, _version, _info, _type) {\
403 .name = (stringify(_field)), \
404 .version_id = (_version), \
405 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\
406 .info = &(_info), \
407 .size = sizeof(_type), \
408 .flags = VMS_VARRAY_UINT32|VMS_POINTER|VMS_ALLOC, \
409 .offset = vmstate_offset_pointer(_state, _field, _type), \
410 }
411
412 #define VMSTATE_VARRAY_UINT16_UNSAFE(_field, _state, _field_num, _version, _info, _type) {\
413 .name = (stringify(_field)), \
414 .version_id = (_version), \
415 .num_offset = vmstate_offset_value(_state, _field_num, uint16_t),\
416 .info = &(_info), \
417 .size = sizeof(_type), \
418 .flags = VMS_VARRAY_UINT16, \
419 .offset = offsetof(_state, _field), \
420 }
421
422 #define VMSTATE_VSTRUCT_TEST(_field, _state, _test, _version, _vmsd, _type, _struct_version) { \
423 .name = (stringify(_field)), \
424 .version_id = (_version), \
425 .struct_version_id = (_struct_version), \
426 .field_exists = (_test), \
427 .vmsd = &(_vmsd), \
428 .size = sizeof(_type), \
429 .flags = VMS_VSTRUCT, \
430 .offset = vmstate_offset_value(_state, _field, _type), \
431 }
432
433 #define VMSTATE_STRUCT_TEST(_field, _state, _test, _version, _vmsd, _type) { \
434 .name = (stringify(_field)), \
435 .version_id = (_version), \
436 .field_exists = (_test), \
437 .vmsd = &(_vmsd), \
438 .size = sizeof(_type), \
439 .flags = VMS_STRUCT, \
440 .offset = vmstate_offset_value(_state, _field, _type), \
441 }
442
443 #define VMSTATE_STRUCT_POINTER_V(_field, _state, _version, _vmsd, _type) { \
444 .name = (stringify(_field)), \
445 .version_id = (_version), \
446 .vmsd = &(_vmsd), \
447 .size = sizeof(_type *), \
448 .flags = VMS_STRUCT|VMS_POINTER, \
449 .offset = vmstate_offset_pointer(_state, _field, _type), \
450 }
451
452 #define VMSTATE_STRUCT_POINTER_TEST_V(_field, _state, _test, _version, _vmsd, _type) { \
453 .name = (stringify(_field)), \
454 .version_id = (_version), \
455 .field_exists = (_test), \
456 .vmsd = &(_vmsd), \
457 .size = sizeof(_type *), \
458 .flags = VMS_STRUCT|VMS_POINTER, \
459 .offset = vmstate_offset_pointer(_state, _field, _type), \
460 }
461
462 #define VMSTATE_ARRAY_OF_POINTER(_field, _state, _num, _version, _info, _type) {\
463 .name = (stringify(_field)), \
464 .version_id = (_version), \
465 .num = (_num), \
466 .info = &(_info), \
467 .size = sizeof(_type), \
468 .flags = VMS_ARRAY|VMS_ARRAY_OF_POINTER, \
469 .offset = vmstate_offset_array(_state, _field, _type, _num), \
470 }
471
472 #define VMSTATE_ARRAY_OF_POINTER_TO_STRUCT(_f, _s, _n, _v, _vmsd, _type) { \
473 .name = (stringify(_f)), \
474 .version_id = (_v), \
475 .num = (_n), \
476 .vmsd = &(_vmsd), \
477 .size = sizeof(_type *), \
478 .flags = VMS_ARRAY|VMS_STRUCT|VMS_ARRAY_OF_POINTER, \
479 .offset = vmstate_offset_array(_s, _f, _type*, _n), \
480 }
481
482 #define VMSTATE_STRUCT_SUB_ARRAY(_field, _state, _start, _num, _version, _vmsd, _type) { \
483 .name = (stringify(_field)), \
484 .version_id = (_version), \
485 .num = (_num), \
486 .vmsd = &(_vmsd), \
487 .size = sizeof(_type), \
488 .flags = VMS_STRUCT|VMS_ARRAY, \
489 .offset = vmstate_offset_sub_array(_state, _field, _type, _start), \
490 }
491
492 #define VMSTATE_STRUCT_ARRAY_TEST(_field, _state, _num, _test, _version, _vmsd, _type) { \
493 .name = (stringify(_field)), \
494 .num = (_num), \
495 .field_exists = (_test), \
496 .version_id = (_version), \
497 .vmsd = &(_vmsd), \
498 .size = sizeof(_type), \
499 .flags = VMS_STRUCT|VMS_ARRAY, \
500 .offset = vmstate_offset_array(_state, _field, _type, _num),\
501 }
502
503 #define VMSTATE_STRUCT_2DARRAY_TEST(_field, _state, _n1, _n2, _test, \
504 _version, _vmsd, _type) { \
505 .name = (stringify(_field)), \
506 .num = (_n1) * (_n2), \
507 .field_exists = (_test), \
508 .version_id = (_version), \
509 .vmsd = &(_vmsd), \
510 .size = sizeof(_type), \
511 .flags = VMS_STRUCT | VMS_ARRAY, \
512 .offset = vmstate_offset_2darray(_state, _field, _type, \
513 _n1, _n2), \
514 }
515
516 #define VMSTATE_STRUCT_VARRAY_UINT8(_field, _state, _field_num, _version, _vmsd, _type) { \
517 .name = (stringify(_field)), \
518 .num_offset = vmstate_offset_value(_state, _field_num, uint8_t), \
519 .version_id = (_version), \
520 .vmsd = &(_vmsd), \
521 .size = sizeof(_type), \
522 .flags = VMS_STRUCT|VMS_VARRAY_UINT8, \
523 .offset = offsetof(_state, _field), \
524 }
525
526 /* a variable length array (i.e. _type *_field) but we know the
527 * length
528 */
529 #define VMSTATE_STRUCT_VARRAY_POINTER_KNOWN(_field, _state, _num, _version, _vmsd, _type) { \
530 .name = (stringify(_field)), \
531 .num = (_num), \
532 .version_id = (_version), \
533 .vmsd = &(_vmsd), \
534 .size = sizeof(_type), \
535 .flags = VMS_STRUCT|VMS_ARRAY|VMS_POINTER, \
536 .offset = offsetof(_state, _field), \
537 }
538
539 #define VMSTATE_STRUCT_VARRAY_POINTER_INT32(_field, _state, _field_num, _vmsd, _type) { \
540 .name = (stringify(_field)), \
541 .version_id = 0, \
542 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \
543 .size = sizeof(_type), \
544 .vmsd = &(_vmsd), \
545 .flags = VMS_POINTER | VMS_VARRAY_INT32 | VMS_STRUCT, \
546 .offset = vmstate_offset_pointer(_state, _field, _type), \
547 }
548
549 #define VMSTATE_STRUCT_VARRAY_POINTER_UINT32(_field, _state, _field_num, _vmsd, _type) { \
550 .name = (stringify(_field)), \
551 .version_id = 0, \
552 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\
553 .size = sizeof(_type), \
554 .vmsd = &(_vmsd), \
555 .flags = VMS_POINTER | VMS_VARRAY_INT32 | VMS_STRUCT, \
556 .offset = vmstate_offset_pointer(_state, _field, _type), \
557 }
558
559 #define VMSTATE_STRUCT_VARRAY_POINTER_UINT16(_field, _state, _field_num, _vmsd, _type) { \
560 .name = (stringify(_field)), \
561 .version_id = 0, \
562 .num_offset = vmstate_offset_value(_state, _field_num, uint16_t),\
563 .size = sizeof(_type), \
564 .vmsd = &(_vmsd), \
565 .flags = VMS_POINTER | VMS_VARRAY_UINT16 | VMS_STRUCT, \
566 .offset = vmstate_offset_pointer(_state, _field, _type), \
567 }
568
569 #define VMSTATE_STRUCT_VARRAY_INT32(_field, _state, _field_num, _version, _vmsd, _type) { \
570 .name = (stringify(_field)), \
571 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \
572 .version_id = (_version), \
573 .vmsd = &(_vmsd), \
574 .size = sizeof(_type), \
575 .flags = VMS_STRUCT|VMS_VARRAY_INT32, \
576 .offset = offsetof(_state, _field), \
577 }
578
579 #define VMSTATE_STRUCT_VARRAY_UINT32(_field, _state, _field_num, _version, _vmsd, _type) { \
580 .name = (stringify(_field)), \
581 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t), \
582 .version_id = (_version), \
583 .vmsd = &(_vmsd), \
584 .size = sizeof(_type), \
585 .flags = VMS_STRUCT|VMS_VARRAY_UINT32, \
586 .offset = offsetof(_state, _field), \
587 }
588
589 #define VMSTATE_STRUCT_VARRAY_ALLOC(_field, _state, _field_num, _version, _vmsd, _type) {\
590 .name = (stringify(_field)), \
591 .version_id = (_version), \
592 .vmsd = &(_vmsd), \
593 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \
594 .size = sizeof(_type), \
595 .flags = VMS_STRUCT|VMS_VARRAY_INT32|VMS_ALLOC|VMS_POINTER, \
596 .offset = vmstate_offset_pointer(_state, _field, _type), \
597 }
598
599 #define VMSTATE_STATIC_BUFFER(_field, _state, _version, _test, _start, _size) { \
600 .name = (stringify(_field)), \
601 .version_id = (_version), \
602 .field_exists = (_test), \
603 .size = (_size - _start), \
604 .info = &vmstate_info_buffer, \
605 .flags = VMS_BUFFER, \
606 .offset = vmstate_offset_buffer(_state, _field) + _start, \
607 }
608
609 #define VMSTATE_VBUFFER_MULTIPLY(_field, _state, _version, _test, \
610 _field_size, _multiply) { \
611 .name = (stringify(_field)), \
612 .version_id = (_version), \
613 .field_exists = (_test), \
614 .size_offset = vmstate_offset_value(_state, _field_size, uint32_t),\
615 .size = (_multiply), \
616 .info = &vmstate_info_buffer, \
617 .flags = VMS_VBUFFER|VMS_POINTER|VMS_MULTIPLY, \
618 .offset = offsetof(_state, _field), \
619 }
620
621 #define VMSTATE_VBUFFER(_field, _state, _version, _test, _field_size) { \
622 .name = (stringify(_field)), \
623 .version_id = (_version), \
624 .field_exists = (_test), \
625 .size_offset = vmstate_offset_value(_state, _field_size, int32_t),\
626 .info = &vmstate_info_buffer, \
627 .flags = VMS_VBUFFER|VMS_POINTER, \
628 .offset = offsetof(_state, _field), \
629 }
630
631 #define VMSTATE_VBUFFER_UINT32(_field, _state, _version, _test, _field_size) { \
632 .name = (stringify(_field)), \
633 .version_id = (_version), \
634 .field_exists = (_test), \
635 .size_offset = vmstate_offset_value(_state, _field_size, uint32_t),\
636 .info = &vmstate_info_buffer, \
637 .flags = VMS_VBUFFER|VMS_POINTER, \
638 .offset = offsetof(_state, _field), \
639 }
640
641 #define VMSTATE_VBUFFER_ALLOC_UINT32(_field, _state, _version, \
642 _test, _field_size) { \
643 .name = (stringify(_field)), \
644 .version_id = (_version), \
645 .field_exists = (_test), \
646 .size_offset = vmstate_offset_value(_state, _field_size, uint32_t),\
647 .info = &vmstate_info_buffer, \
648 .flags = VMS_VBUFFER|VMS_POINTER|VMS_ALLOC, \
649 .offset = offsetof(_state, _field), \
650 }
651
652 #define VMSTATE_BUFFER_UNSAFE_INFO_TEST(_field, _state, _test, _version, _info, _size) { \
653 .name = (stringify(_field)), \
654 .version_id = (_version), \
655 .field_exists = (_test), \
656 .size = (_size), \
657 .info = &(_info), \
658 .flags = VMS_BUFFER, \
659 .offset = offsetof(_state, _field), \
660 }
661
662 #define VMSTATE_BUFFER_POINTER_UNSAFE(_field, _state, _version, _size) { \
663 .name = (stringify(_field)), \
664 .version_id = (_version), \
665 .size = (_size), \
666 .info = &vmstate_info_buffer, \
667 .flags = VMS_BUFFER|VMS_POINTER, \
668 .offset = offsetof(_state, _field), \
669 }
670
671 /* Allocate a temporary of type 'tmp_type', set tmp->parent to _state
672 * and execute the vmsd on the temporary. Note that we're working with
673 * the whole of _state here, not a field within it.
674 * We compile time check that:
675 * That _tmp_type contains a 'parent' member that's a pointer to the
676 * '_state' type
677 * That the pointer is right at the start of _tmp_type.
678 */
679 #define VMSTATE_WITH_TMP(_state, _tmp_type, _vmsd) { \
680 .name = "tmp", \
681 .size = sizeof(_tmp_type) + \
682 QEMU_BUILD_BUG_ON_ZERO(offsetof(_tmp_type, parent) != 0) + \
683 type_check_pointer(_state, \
684 typeof_field(_tmp_type, parent)), \
685 .vmsd = &(_vmsd), \
686 .info = &vmstate_info_tmp, \
687 }
688
689 #define VMSTATE_UNUSED_BUFFER(_test, _version, _size) { \
690 .name = "unused", \
691 .field_exists = (_test), \
692 .version_id = (_version), \
693 .size = (_size), \
694 .info = &vmstate_info_unused_buffer, \
695 .flags = VMS_BUFFER, \
696 }
697
698 /* Discard size * field_num bytes, where field_num is a uint32 member */
699 #define VMSTATE_UNUSED_VARRAY_UINT32(_state, _test, _version, _field_num, _size) {\
700 .name = "unused", \
701 .field_exists = (_test), \
702 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\
703 .version_id = (_version), \
704 .size = (_size), \
705 .info = &vmstate_info_unused_buffer, \
706 .flags = VMS_VARRAY_UINT32 | VMS_BUFFER, \
707 }
708
709 /* _field_size should be a int32_t field in the _state struct giving the
710 * size of the bitmap _field in bits.
711 */
712 #define VMSTATE_BITMAP(_field, _state, _version, _field_size) { \
713 .name = (stringify(_field)), \
714 .version_id = (_version), \
715 .size_offset = vmstate_offset_value(_state, _field_size, int32_t),\
716 .info = &vmstate_info_bitmap, \
717 .flags = VMS_VBUFFER|VMS_POINTER, \
718 .offset = offsetof(_state, _field), \
719 }
720
721 /* For migrating a QTAILQ.
722 * Target QTAILQ needs be properly initialized.
723 * _type: type of QTAILQ element
724 * _next: name of QTAILQ entry field in QTAILQ element
725 * _vmsd: VMSD for QTAILQ element
726 * size: size of QTAILQ element
727 * start: offset of QTAILQ entry in QTAILQ element
728 */
729 #define VMSTATE_QTAILQ_V(_field, _state, _version, _vmsd, _type, _next) \
730 { \
731 .name = (stringify(_field)), \
732 .version_id = (_version), \
733 .vmsd = &(_vmsd), \
734 .size = sizeof(_type), \
735 .info = &vmstate_info_qtailq, \
736 .offset = offsetof(_state, _field), \
737 .start = offsetof(_type, _next), \
738 }
739
740 /* _f : field name
741 _f_n : num of elements field_name
742 _n : num of elements
743 _s : struct state name
744 _v : version
745 */
746
747 #define VMSTATE_SINGLE(_field, _state, _version, _info, _type) \
748 VMSTATE_SINGLE_TEST(_field, _state, NULL, _version, _info, _type)
749
750 #define VMSTATE_VSTRUCT(_field, _state, _vmsd, _type, _struct_version)\
751 VMSTATE_VSTRUCT_TEST(_field, _state, NULL, 0, _vmsd, _type, _struct_version)
752
753 #define VMSTATE_VSTRUCT_V(_field, _state, _version, _vmsd, _type, _struct_version) \
754 VMSTATE_VSTRUCT_TEST(_field, _state, NULL, _version, _vmsd, _type, \
755 _struct_version)
756
757 #define VMSTATE_STRUCT(_field, _state, _version, _vmsd, _type) \
758 VMSTATE_STRUCT_TEST(_field, _state, NULL, _version, _vmsd, _type)
759
760 #define VMSTATE_STRUCT_POINTER(_field, _state, _vmsd, _type) \
761 VMSTATE_STRUCT_POINTER_V(_field, _state, 0, _vmsd, _type)
762
763 #define VMSTATE_STRUCT_POINTER_TEST(_field, _state, _test, _vmsd, _type) \
764 VMSTATE_STRUCT_POINTER_TEST_V(_field, _state, _test, 0, _vmsd, _type)
765
766 #define VMSTATE_STRUCT_ARRAY(_field, _state, _num, _version, _vmsd, _type) \
767 VMSTATE_STRUCT_ARRAY_TEST(_field, _state, _num, NULL, _version, \
768 _vmsd, _type)
769
770 #define VMSTATE_STRUCT_2DARRAY(_field, _state, _n1, _n2, _version, \
771 _vmsd, _type) \
772 VMSTATE_STRUCT_2DARRAY_TEST(_field, _state, _n1, _n2, NULL, \
773 _version, _vmsd, _type)
774
775 #define VMSTATE_BUFFER_UNSAFE_INFO(_field, _state, _version, _info, _size) \
776 VMSTATE_BUFFER_UNSAFE_INFO_TEST(_field, _state, NULL, _version, _info, \
777 _size)
778
779 #define VMSTATE_BOOL_V(_f, _s, _v) \
780 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_bool, bool)
781
782 #define VMSTATE_INT8_V(_f, _s, _v) \
783 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int8, int8_t)
784 #define VMSTATE_INT16_V(_f, _s, _v) \
785 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int16, int16_t)
786 #define VMSTATE_INT32_V(_f, _s, _v) \
787 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int32, int32_t)
788 #define VMSTATE_INT64_V(_f, _s, _v) \
789 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int64, int64_t)
790
791 #define VMSTATE_UINT8_V(_f, _s, _v) \
792 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint8, uint8_t)
793 #define VMSTATE_UINT16_V(_f, _s, _v) \
794 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint16, uint16_t)
795 #define VMSTATE_UINT32_V(_f, _s, _v) \
796 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint32, uint32_t)
797 #define VMSTATE_UINT64_V(_f, _s, _v) \
798 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint64, uint64_t)
799
800 #ifdef CONFIG_LINUX
801
802 #define VMSTATE_U8_V(_f, _s, _v) \
803 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint8, __u8)
804 #define VMSTATE_U16_V(_f, _s, _v) \
805 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint16, __u16)
806 #define VMSTATE_U32_V(_f, _s, _v) \
807 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint32, __u32)
808 #define VMSTATE_U64_V(_f, _s, _v) \
809 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint64, __u64)
810
811 #endif
812
813 #define VMSTATE_BOOL(_f, _s) \
814 VMSTATE_BOOL_V(_f, _s, 0)
815
816 #define VMSTATE_INT8(_f, _s) \
817 VMSTATE_INT8_V(_f, _s, 0)
818 #define VMSTATE_INT16(_f, _s) \
819 VMSTATE_INT16_V(_f, _s, 0)
820 #define VMSTATE_INT32(_f, _s) \
821 VMSTATE_INT32_V(_f, _s, 0)
822 #define VMSTATE_INT64(_f, _s) \
823 VMSTATE_INT64_V(_f, _s, 0)
824
825 #define VMSTATE_UINT8(_f, _s) \
826 VMSTATE_UINT8_V(_f, _s, 0)
827 #define VMSTATE_UINT16(_f, _s) \
828 VMSTATE_UINT16_V(_f, _s, 0)
829 #define VMSTATE_UINT32(_f, _s) \
830 VMSTATE_UINT32_V(_f, _s, 0)
831 #define VMSTATE_UINT64(_f, _s) \
832 VMSTATE_UINT64_V(_f, _s, 0)
833
834 #ifdef CONFIG_LINUX
835
836 #define VMSTATE_U8(_f, _s) \
837 VMSTATE_U8_V(_f, _s, 0)
838 #define VMSTATE_U16(_f, _s) \
839 VMSTATE_U16_V(_f, _s, 0)
840 #define VMSTATE_U32(_f, _s) \
841 VMSTATE_U32_V(_f, _s, 0)
842 #define VMSTATE_U64(_f, _s) \
843 VMSTATE_U64_V(_f, _s, 0)
844
845 #endif
846
847 #define VMSTATE_UINT8_EQUAL(_f, _s, _err_hint) \
848 VMSTATE_SINGLE_FULL(_f, _s, 0, 0, \
849 vmstate_info_uint8_equal, uint8_t, _err_hint)
850
851 #define VMSTATE_UINT16_EQUAL(_f, _s, _err_hint) \
852 VMSTATE_SINGLE_FULL(_f, _s, 0, 0, \
853 vmstate_info_uint16_equal, uint16_t, _err_hint)
854
855 #define VMSTATE_UINT16_EQUAL_V(_f, _s, _v, _err_hint) \
856 VMSTATE_SINGLE_FULL(_f, _s, 0, _v, \
857 vmstate_info_uint16_equal, uint16_t, _err_hint)
858
859 #define VMSTATE_INT32_EQUAL(_f, _s, _err_hint) \
860 VMSTATE_SINGLE_FULL(_f, _s, 0, 0, \
861 vmstate_info_int32_equal, int32_t, _err_hint)
862
863 #define VMSTATE_UINT32_EQUAL_V(_f, _s, _v, _err_hint) \
864 VMSTATE_SINGLE_FULL(_f, _s, 0, _v, \
865 vmstate_info_uint32_equal, uint32_t, _err_hint)
866
867 #define VMSTATE_UINT32_EQUAL(_f, _s, _err_hint) \
868 VMSTATE_UINT32_EQUAL_V(_f, _s, 0, _err_hint)
869
870 #define VMSTATE_UINT64_EQUAL_V(_f, _s, _v, _err_hint) \
871 VMSTATE_SINGLE_FULL(_f, _s, 0, _v, \
872 vmstate_info_uint64_equal, uint64_t, _err_hint)
873
874 #define VMSTATE_UINT64_EQUAL(_f, _s, _err_hint) \
875 VMSTATE_UINT64_EQUAL_V(_f, _s, 0, _err_hint)
876
877 #define VMSTATE_INT32_POSITIVE_LE(_f, _s) \
878 VMSTATE_SINGLE(_f, _s, 0, vmstate_info_int32_le, int32_t)
879
880 #define VMSTATE_BOOL_TEST(_f, _s, _t) \
881 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_bool, bool)
882
883 #define VMSTATE_INT8_TEST(_f, _s, _t) \
884 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_int8, int8_t)
885
886 #define VMSTATE_INT16_TEST(_f, _s, _t) \
887 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_int16, int16_t)
888
889 #define VMSTATE_INT32_TEST(_f, _s, _t) \
890 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_int32, int32_t)
891
892 #define VMSTATE_INT64_TEST(_f, _s, _t) \
893 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_int64, int64_t)
894
895 #define VMSTATE_UINT8_TEST(_f, _s, _t) \
896 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint8, uint8_t)
897
898 #define VMSTATE_UINT16_TEST(_f, _s, _t) \
899 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint16, uint16_t)
900
901 #define VMSTATE_UINT32_TEST(_f, _s, _t) \
902 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint32, uint32_t)
903
904 #define VMSTATE_UINT64_TEST(_f, _s, _t) \
905 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint64, uint64_t)
906
907
908 #define VMSTATE_FLOAT64_V(_f, _s, _v) \
909 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_float64, float64)
910
911 #define VMSTATE_FLOAT64(_f, _s) \
912 VMSTATE_FLOAT64_V(_f, _s, 0)
913
914 #define VMSTATE_TIMER_PTR_TEST(_f, _s, _test) \
915 VMSTATE_POINTER_TEST(_f, _s, _test, vmstate_info_timer, QEMUTimer *)
916
917 #define VMSTATE_TIMER_PTR_V(_f, _s, _v) \
918 VMSTATE_POINTER(_f, _s, _v, vmstate_info_timer, QEMUTimer *)
919
920 #define VMSTATE_TIMER_PTR(_f, _s) \
921 VMSTATE_TIMER_PTR_V(_f, _s, 0)
922
923 #define VMSTATE_TIMER_PTR_ARRAY(_f, _s, _n) \
924 VMSTATE_ARRAY_OF_POINTER(_f, _s, _n, 0, vmstate_info_timer, QEMUTimer *)
925
926 #define VMSTATE_TIMER_TEST(_f, _s, _test) \
927 VMSTATE_SINGLE_TEST(_f, _s, _test, 0, vmstate_info_timer, QEMUTimer)
928
929 #define VMSTATE_TIMER_V(_f, _s, _v) \
930 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_timer, QEMUTimer)
931
932 #define VMSTATE_TIMER(_f, _s) \
933 VMSTATE_TIMER_V(_f, _s, 0)
934
935 #define VMSTATE_TIMER_ARRAY(_f, _s, _n) \
936 VMSTATE_ARRAY(_f, _s, _n, 0, vmstate_info_timer, QEMUTimer)
937
938 #define VMSTATE_BOOL_ARRAY_V(_f, _s, _n, _v) \
939 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_bool, bool)
940
941 #define VMSTATE_BOOL_ARRAY(_f, _s, _n) \
942 VMSTATE_BOOL_ARRAY_V(_f, _s, _n, 0)
943
944 #define VMSTATE_BOOL_SUB_ARRAY(_f, _s, _start, _num) \
945 VMSTATE_SUB_ARRAY(_f, _s, _start, _num, 0, vmstate_info_bool, bool)
946
947 #define VMSTATE_UINT16_ARRAY_V(_f, _s, _n, _v) \
948 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint16, uint16_t)
949
950 #define VMSTATE_UINT16_2DARRAY_V(_f, _s, _n1, _n2, _v) \
951 VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint16, uint16_t)
952
953 #define VMSTATE_UINT16_ARRAY(_f, _s, _n) \
954 VMSTATE_UINT16_ARRAY_V(_f, _s, _n, 0)
955
956 #define VMSTATE_UINT16_SUB_ARRAY(_f, _s, _start, _num) \
957 VMSTATE_SUB_ARRAY(_f, _s, _start, _num, 0, vmstate_info_uint16, uint16_t)
958
959 #define VMSTATE_UINT16_2DARRAY(_f, _s, _n1, _n2) \
960 VMSTATE_UINT16_2DARRAY_V(_f, _s, _n1, _n2, 0)
961
962 #define VMSTATE_UINT8_2DARRAY_V(_f, _s, _n1, _n2, _v) \
963 VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint8, uint8_t)
964
965 #define VMSTATE_UINT8_ARRAY_V(_f, _s, _n, _v) \
966 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint8, uint8_t)
967
968 #define VMSTATE_UINT8_ARRAY(_f, _s, _n) \
969 VMSTATE_UINT8_ARRAY_V(_f, _s, _n, 0)
970
971 #define VMSTATE_UINT8_SUB_ARRAY(_f, _s, _start, _num) \
972 VMSTATE_SUB_ARRAY(_f, _s, _start, _num, 0, vmstate_info_uint8, uint8_t)
973
974 #define VMSTATE_UINT8_2DARRAY(_f, _s, _n1, _n2) \
975 VMSTATE_UINT8_2DARRAY_V(_f, _s, _n1, _n2, 0)
976
977 #define VMSTATE_UINT32_ARRAY_V(_f, _s, _n, _v) \
978 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint32, uint32_t)
979
980 #define VMSTATE_UINT32_2DARRAY_V(_f, _s, _n1, _n2, _v) \
981 VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint32, uint32_t)
982
983 #define VMSTATE_UINT32_ARRAY(_f, _s, _n) \
984 VMSTATE_UINT32_ARRAY_V(_f, _s, _n, 0)
985
986 #define VMSTATE_UINT32_SUB_ARRAY(_f, _s, _start, _num) \
987 VMSTATE_SUB_ARRAY(_f, _s, _start, _num, 0, vmstate_info_uint32, uint32_t)
988
989 #define VMSTATE_UINT32_2DARRAY(_f, _s, _n1, _n2) \
990 VMSTATE_UINT32_2DARRAY_V(_f, _s, _n1, _n2, 0)
991
992 #define VMSTATE_UINT64_ARRAY_V(_f, _s, _n, _v) \
993 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint64, uint64_t)
994
995 #define VMSTATE_UINT64_ARRAY(_f, _s, _n) \
996 VMSTATE_UINT64_ARRAY_V(_f, _s, _n, 0)
997
998 #define VMSTATE_UINT64_SUB_ARRAY(_f, _s, _start, _num) \
999 VMSTATE_SUB_ARRAY(_f, _s, _start, _num, 0, vmstate_info_uint64, uint64_t)
1000
1001 #define VMSTATE_UINT64_2DARRAY(_f, _s, _n1, _n2) \
1002 VMSTATE_UINT64_2DARRAY_V(_f, _s, _n1, _n2, 0)
1003
1004 #define VMSTATE_UINT64_2DARRAY_V(_f, _s, _n1, _n2, _v) \
1005 VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint64, uint64_t)
1006
1007 #define VMSTATE_INT16_ARRAY_V(_f, _s, _n, _v) \
1008 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int16, int16_t)
1009
1010 #define VMSTATE_INT16_ARRAY(_f, _s, _n) \
1011 VMSTATE_INT16_ARRAY_V(_f, _s, _n, 0)
1012
1013 #define VMSTATE_INT32_ARRAY_V(_f, _s, _n, _v) \
1014 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int32, int32_t)
1015
1016 #define VMSTATE_INT32_ARRAY(_f, _s, _n) \
1017 VMSTATE_INT32_ARRAY_V(_f, _s, _n, 0)
1018
1019 #define VMSTATE_INT64_ARRAY_V(_f, _s, _n, _v) \
1020 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int64, int64_t)
1021
1022 #define VMSTATE_INT64_ARRAY(_f, _s, _n) \
1023 VMSTATE_INT64_ARRAY_V(_f, _s, _n, 0)
1024
1025 #define VMSTATE_FLOAT64_ARRAY_V(_f, _s, _n, _v) \
1026 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_float64, float64)
1027
1028 #define VMSTATE_FLOAT64_ARRAY(_f, _s, _n) \
1029 VMSTATE_FLOAT64_ARRAY_V(_f, _s, _n, 0)
1030
1031 #define VMSTATE_CPUDOUBLE_ARRAY_V(_f, _s, _n, _v) \
1032 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_cpudouble, CPU_DoubleU)
1033
1034 #define VMSTATE_CPUDOUBLE_ARRAY(_f, _s, _n) \
1035 VMSTATE_CPUDOUBLE_ARRAY_V(_f, _s, _n, 0)
1036
1037 #define VMSTATE_BUFFER_V(_f, _s, _v) \
1038 VMSTATE_STATIC_BUFFER(_f, _s, _v, NULL, 0, sizeof(typeof_field(_s, _f)))
1039
1040 #define VMSTATE_BUFFER(_f, _s) \
1041 VMSTATE_BUFFER_V(_f, _s, 0)
1042
1043 #define VMSTATE_PARTIAL_BUFFER(_f, _s, _size) \
1044 VMSTATE_STATIC_BUFFER(_f, _s, 0, NULL, 0, _size)
1045
1046 #define VMSTATE_BUFFER_START_MIDDLE_V(_f, _s, _start, _v) \
1047 VMSTATE_STATIC_BUFFER(_f, _s, _v, NULL, _start, sizeof(typeof_field(_s, _f)))
1048
1049 #define VMSTATE_BUFFER_START_MIDDLE(_f, _s, _start) \
1050 VMSTATE_BUFFER_START_MIDDLE_V(_f, _s, _start, 0)
1051
1052 #define VMSTATE_PARTIAL_VBUFFER(_f, _s, _size) \
1053 VMSTATE_VBUFFER(_f, _s, 0, NULL, _size)
1054
1055 #define VMSTATE_PARTIAL_VBUFFER_UINT32(_f, _s, _size) \
1056 VMSTATE_VBUFFER_UINT32(_f, _s, 0, NULL, _size)
1057
1058 #define VMSTATE_BUFFER_TEST(_f, _s, _test) \
1059 VMSTATE_STATIC_BUFFER(_f, _s, 0, _test, 0, sizeof(typeof_field(_s, _f)))
1060
1061 #define VMSTATE_BUFFER_UNSAFE(_field, _state, _version, _size) \
1062 VMSTATE_BUFFER_UNSAFE_INFO(_field, _state, _version, vmstate_info_buffer, _size)
1063
1064 /*
1065 * These VMSTATE_UNUSED*() macros can be used to fill in the holes
1066 * when some of the vmstate fields are obsolete to be compatible with
1067 * migrations between new/old binaries.
1068 *
1069 * CAUTION: when using any of the VMSTATE_UNUSED*() macros please be
1070 * sure that the size passed in is the size that was actually *sent*
1071 * rather than the size of the *structure*. One example is the
1072 * boolean type - the size of the structure can vary depending on the
1073 * definition of boolean, however the size we actually sent is always
1074 * 1 byte (please refer to implementation of VMSTATE_BOOL_V and
1075 * vmstate_info_bool). So here we should always pass in size==1
1076 * rather than size==sizeof(bool).
1077 */
1078 #define VMSTATE_UNUSED_V(_v, _size) \
1079 VMSTATE_UNUSED_BUFFER(NULL, _v, _size)
1080
1081 #define VMSTATE_UNUSED(_size) \
1082 VMSTATE_UNUSED_V(0, _size)
1083
1084 #define VMSTATE_UNUSED_TEST(_test, _size) \
1085 VMSTATE_UNUSED_BUFFER(_test, 0, _size)
1086
1087 #define VMSTATE_END_OF_LIST() \
1088 {}
1089
1090 int vmstate_load_state(QEMUFile *f, const VMStateDescription *vmsd,
1091 void *opaque, int version_id);
1092 int vmstate_save_state(QEMUFile *f, const VMStateDescription *vmsd,
1093 void *opaque, QJSON *vmdesc);
1094 int vmstate_save_state_v(QEMUFile *f, const VMStateDescription *vmsd,
1095 void *opaque, QJSON *vmdesc, int version_id);
1096
1097 bool vmstate_save_needed(const VMStateDescription *vmsd, void *opaque);
1098
1099 /* Returns: 0 on success, -1 on failure */
1100 int vmstate_register_with_alias_id(DeviceState *dev, int instance_id,
1101 const VMStateDescription *vmsd,
1102 void *base, int alias_id,
1103 int required_for_version,
1104 Error **errp);
1105
1106 /* Returns: 0 on success, -1 on failure */
1107 static inline int vmstate_register(DeviceState *dev, int instance_id,
1108 const VMStateDescription *vmsd,
1109 void *opaque)
1110 {
1111 return vmstate_register_with_alias_id(dev, instance_id, vmsd,
1112 opaque, -1, 0, NULL);
1113 }
1114
1115 void vmstate_unregister(DeviceState *dev, const VMStateDescription *vmsd,
1116 void *opaque);
1117
1118 struct MemoryRegion;
1119 void vmstate_register_ram(struct MemoryRegion *memory, DeviceState *dev);
1120 void vmstate_unregister_ram(struct MemoryRegion *memory, DeviceState *dev);
1121 void vmstate_register_ram_global(struct MemoryRegion *memory);
1122
1123 bool vmstate_check_only_migratable(const VMStateDescription *vmsd);
1124
1125 #endif
AR7 emulation for QEMU