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tests/iothread: Always connect iothread GSource to a GMainContext
[qemu/ar7.git] / include / migration / vmstate.h
blob4aef72c42634b7463704f18c419c51ce7578135b
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 "hw/vmstate-if.h"
31
32 typedef struct VMStateInfo VMStateInfo;
33 typedef struct VMStateField VMStateField;
34
35 /* VMStateInfo allows customized migration of objects that don't fit in
36 * any category in VMStateFlags. Additional information is always passed
37 * into get and put in terms of field and vmdesc parameters. However
38 * these two parameters should only be used in cases when customized
39 * handling is needed, such as QTAILQ. For primitive data types such as
40 * integer, field and vmdesc parameters should be ignored inside get/put.
41 */
42 struct VMStateInfo {
43 const char *name;
44 int (*get)(QEMUFile *f, void *pv, size_t size, const VMStateField *field);
45 int (*put)(QEMUFile *f, void *pv, size_t size, const VMStateField *field,
46 QJSON *vmdesc);
47 };
48
49 enum VMStateFlags {
50 /* Ignored */
51 VMS_SINGLE = 0x001,
52
53 /* The struct member at opaque + VMStateField.offset is a pointer
54 * to the actual field (e.g. struct a { uint8_t *b;
55 * }). Dereference the pointer before using it as basis for
56 * further pointer arithmetic (see e.g. VMS_ARRAY). Does not
57 * affect the meaning of VMStateField.num_offset or
58 * VMStateField.size_offset; see VMS_VARRAY* and VMS_VBUFFER for
59 * those. */
60 VMS_POINTER = 0x002,
61
62 /* The field is an array of fixed size. VMStateField.num contains
63 * the number of entries in the array. The size of each entry is
64 * given by VMStateField.size and / or opaque +
65 * VMStateField.size_offset; see VMS_VBUFFER and
66 * VMS_MULTIPLY. Each array entry will be processed individually
67 * (VMStateField.info.get()/put() if VMS_STRUCT is not set,
68 * recursion into VMStateField.vmsd if VMS_STRUCT is set). May not
69 * be combined with VMS_VARRAY*. */
70 VMS_ARRAY = 0x004,
71
72 /* The field is itself a struct, containing one or more
73 * fields. Recurse into VMStateField.vmsd. Most useful in
74 * combination with VMS_ARRAY / VMS_VARRAY*, recursing into each
75 * array entry. */
76 VMS_STRUCT = 0x008,
77
78 /* The field is an array of variable size. The int32_t at opaque +
79 * VMStateField.num_offset contains the number of entries in the
80 * array. See the VMS_ARRAY description regarding array handling
81 * in general. May not be combined with VMS_ARRAY or any other
82 * VMS_VARRAY*. */
83 VMS_VARRAY_INT32 = 0x010,
84
85 /* Ignored */
86 VMS_BUFFER = 0x020,
87
88 /* The field is a (fixed-size or variable-size) array of pointers
89 * (e.g. struct a { uint8_t *b[]; }). Dereference each array entry
90 * before using it. Note: Does not imply any one of VMS_ARRAY /
91 * VMS_VARRAY*; these need to be set explicitly. */
92 VMS_ARRAY_OF_POINTER = 0x040,
93
94 /* The field is an array of variable size. The uint16_t at opaque
95 * + VMStateField.num_offset (subject to VMS_MULTIPLY_ELEMENTS)
96 * contains the number of entries in the array. See the VMS_ARRAY
97 * description regarding array handling in general. May not be
98 * combined with VMS_ARRAY or any other VMS_VARRAY*. */
99 VMS_VARRAY_UINT16 = 0x080,
100
101 /* The size of the individual entries (a single array entry if
102 * VMS_ARRAY or any of VMS_VARRAY* are set, or the field itself if
103 * neither is set) is variable (i.e. not known at compile-time),
104 * but the same for all entries. Use the int32_t at opaque +
105 * VMStateField.size_offset (subject to VMS_MULTIPLY) to determine
106 * the size of each (and every) entry. */
107 VMS_VBUFFER = 0x100,
108
109 /* Multiply the entry size given by the int32_t at opaque +
110 * VMStateField.size_offset (see VMS_VBUFFER description) with
111 * VMStateField.size to determine the number of bytes to be
112 * allocated. Only valid in combination with VMS_VBUFFER. */
113 VMS_MULTIPLY = 0x200,
114
115 /* The field is an array of variable size. The uint8_t at opaque +
116 * VMStateField.num_offset (subject to VMS_MULTIPLY_ELEMENTS)
117 * contains the number of entries in the array. See the VMS_ARRAY
118 * description regarding array handling in general. May not be
119 * combined with VMS_ARRAY or any other VMS_VARRAY*. */
120 VMS_VARRAY_UINT8 = 0x400,
121
122 /* The field is an array of variable size. The uint32_t at opaque
123 * + VMStateField.num_offset (subject to VMS_MULTIPLY_ELEMENTS)
124 * contains the number of entries in the array. See the VMS_ARRAY
125 * description regarding array handling in general. May not be
126 * combined with VMS_ARRAY or any other VMS_VARRAY*. */
127 VMS_VARRAY_UINT32 = 0x800,
128
129 /* Fail loading the serialised VM state if this field is missing
130 * from the input. */
131 VMS_MUST_EXIST = 0x1000,
132
133 /* When loading serialised VM state, allocate memory for the
134 * (entire) field. Only valid in combination with
135 * VMS_POINTER. Note: Not all combinations with other flags are
136 * currently supported, e.g. VMS_ALLOC|VMS_ARRAY_OF_POINTER won't
137 * cause the individual entries to be allocated. */
138 VMS_ALLOC = 0x2000,
139
140 /* Multiply the number of entries given by the integer at opaque +
141 * VMStateField.num_offset (see VMS_VARRAY*) with VMStateField.num
142 * to determine the number of entries in the array. Only valid in
143 * combination with one of VMS_VARRAY*. */
144 VMS_MULTIPLY_ELEMENTS = 0x4000,
145
146 /* A structure field that is like VMS_STRUCT, but uses
147 * VMStateField.struct_version_id to tell which version of the
148 * structure we are referencing to use. */
149 VMS_VSTRUCT = 0x8000,
150 };
151
152 typedef enum {
153 MIG_PRI_DEFAULT = 0,
154 MIG_PRI_IOMMU, /* Must happen before PCI devices */
155 MIG_PRI_PCI_BUS, /* Must happen before IOMMU */
156 MIG_PRI_GICV3_ITS, /* Must happen before PCI devices */
157 MIG_PRI_GICV3, /* Must happen before the ITS */
158 MIG_PRI_MAX,
159 } MigrationPriority;
160
161 struct VMStateField {
162 const char *name;
163 const char *err_hint;
164 size_t offset;
165 size_t size;
166 size_t start;
167 int num;
168 size_t num_offset;
169 size_t size_offset;
170 const VMStateInfo *info;
171 enum VMStateFlags flags;
172 const VMStateDescription *vmsd;
173 int version_id;
174 int struct_version_id;
175 bool (*field_exists)(void *opaque, int version_id);
176 };
177
178 struct VMStateDescription {
179 const char *name;
180 int unmigratable;
181 int version_id;
182 int minimum_version_id;
183 int minimum_version_id_old;
184 MigrationPriority priority;
185 LoadStateHandler *load_state_old;
186 int (*pre_load)(void *opaque);
187 int (*post_load)(void *opaque, int version_id);
188 int (*pre_save)(void *opaque);
189 int (*post_save)(void *opaque);
190 bool (*needed)(void *opaque);
191 bool (*dev_unplug_pending)(void *opaque);
192
193 const VMStateField *fields;
194 const VMStateDescription **subsections;
195 };
196
197 extern const VMStateDescription vmstate_dummy;
198
199 extern const VMStateInfo vmstate_info_bool;
200
201 extern const VMStateInfo vmstate_info_int8;
202 extern const VMStateInfo vmstate_info_int16;
203 extern const VMStateInfo vmstate_info_int32;
204 extern const VMStateInfo vmstate_info_int64;
205
206 extern const VMStateInfo vmstate_info_uint8_equal;
207 extern const VMStateInfo vmstate_info_uint16_equal;
208 extern const VMStateInfo vmstate_info_int32_equal;
209 extern const VMStateInfo vmstate_info_uint32_equal;
210 extern const VMStateInfo vmstate_info_uint64_equal;
211 extern const VMStateInfo vmstate_info_int32_le;
212
213 extern const VMStateInfo vmstate_info_uint8;
214 extern const VMStateInfo vmstate_info_uint16;
215 extern const VMStateInfo vmstate_info_uint32;
216 extern const VMStateInfo vmstate_info_uint64;
217
218 /** Put this in the stream when migrating a null pointer.*/
219 #define VMS_NULLPTR_MARKER (0x30U) /* '0' */
220 extern const VMStateInfo vmstate_info_nullptr;
221
222 extern const VMStateInfo vmstate_info_float64;
223 extern const VMStateInfo vmstate_info_cpudouble;
224
225 extern const VMStateInfo vmstate_info_timer;
226 extern const VMStateInfo vmstate_info_buffer;
227 extern const VMStateInfo vmstate_info_unused_buffer;
228 extern const VMStateInfo vmstate_info_tmp;
229 extern const VMStateInfo vmstate_info_bitmap;
230 extern const VMStateInfo vmstate_info_qtailq;
231 extern const VMStateInfo vmstate_info_gtree;
232
233 #define type_check_2darray(t1,t2,n,m) ((t1(*)[n][m])0 - (t2*)0)
234 /*
235 * Check that type t2 is an array of type t1 of size n,
236 * e.g. if t1 is 'foo' and n is 32 then t2 must be 'foo[32]'
237 */
238 #define type_check_array(t1,t2,n) ((t1(*)[n])0 - (t2*)0)
239 #define type_check_pointer(t1,t2) ((t1**)0 - (t2*)0)
240 /*
241 * type of element 0 of the specified (array) field of the type.
242 * Note that if the field is a pointer then this will return the
243 * pointed-to type rather than complaining.
244 */
245 #define typeof_elt_of_field(type, field) typeof(((type *)0)->field[0])
246 /* Check that field f in struct type t2 is an array of t1, of any size */
247 #define type_check_varray(t1, t2, f) \
248 (type_check(t1, typeof_elt_of_field(t2, f)) \
249 + QEMU_BUILD_BUG_ON_ZERO(!QEMU_IS_ARRAY(((t2 *)0)->f)))
250
251 #define vmstate_offset_value(_state, _field, _type) \
252 (offsetof(_state, _field) + \
253 type_check(_type, typeof_field(_state, _field)))
254
255 #define vmstate_offset_pointer(_state, _field, _type) \
256 (offsetof(_state, _field) + \
257 type_check_pointer(_type, typeof_field(_state, _field)))
258
259 #define vmstate_offset_array(_state, _field, _type, _num) \
260 (offsetof(_state, _field) + \
261 type_check_array(_type, typeof_field(_state, _field), _num))
262
263 #define vmstate_offset_2darray(_state, _field, _type, _n1, _n2) \
264 (offsetof(_state, _field) + \
265 type_check_2darray(_type, typeof_field(_state, _field), _n1, _n2))
266
267 #define vmstate_offset_sub_array(_state, _field, _type, _start) \
268 vmstate_offset_value(_state, _field[_start], _type)
269
270 #define vmstate_offset_buffer(_state, _field) \
271 vmstate_offset_array(_state, _field, uint8_t, \
272 sizeof(typeof_field(_state, _field)))
273
274 #define vmstate_offset_varray(_state, _field, _type) \
275 (offsetof(_state, _field) + \
276 type_check_varray(_type, _state, _field))
277
278 /* In the macros below, if there is a _version, that means the macro's
279 * field will be processed only if the version being received is >=
280 * the _version specified. In general, if you add a new field, you
281 * would increment the structure's version and put that version
282 * number into the new field so it would only be processed with the
283 * new version.
284 *
285 * In particular, for VMSTATE_STRUCT() and friends the _version does
286 * *NOT* pick the version of the sub-structure. It works just as
287 * specified above. The version of the top-level structure received
288 * is passed down to all sub-structures. This means that the
289 * sub-structures must have version that are compatible with all the
290 * structures that use them.
291 *
292 * If you want to specify the version of the sub-structure, use
293 * VMSTATE_VSTRUCT(), which allows the specific sub-structure version
294 * to be directly specified.
295 */
296
297 #define VMSTATE_SINGLE_TEST(_field, _state, _test, _version, _info, _type) { \
298 .name = (stringify(_field)), \
299 .version_id = (_version), \
300 .field_exists = (_test), \
301 .size = sizeof(_type), \
302 .info = &(_info), \
303 .flags = VMS_SINGLE, \
304 .offset = vmstate_offset_value(_state, _field, _type), \
305 }
306
307 #define VMSTATE_SINGLE_FULL(_field, _state, _test, _version, _info, \
308 _type, _err_hint) { \
309 .name = (stringify(_field)), \
310 .err_hint = (_err_hint), \
311 .version_id = (_version), \
312 .field_exists = (_test), \
313 .size = sizeof(_type), \
314 .info = &(_info), \
315 .flags = VMS_SINGLE, \
316 .offset = vmstate_offset_value(_state, _field, _type), \
317 }
318
319 /* Validate state using a boolean predicate. */
320 #define VMSTATE_VALIDATE(_name, _test) { \
321 .name = (_name), \
322 .field_exists = (_test), \
323 .flags = VMS_ARRAY | VMS_MUST_EXIST, \
324 .num = 0, /* 0 elements: no data, only run _test */ \
325 }
326
327 #define VMSTATE_POINTER(_field, _state, _version, _info, _type) { \
328 .name = (stringify(_field)), \
329 .version_id = (_version), \
330 .info = &(_info), \
331 .size = sizeof(_type), \
332 .flags = VMS_SINGLE|VMS_POINTER, \
333 .offset = vmstate_offset_value(_state, _field, _type), \
334 }
335
336 #define VMSTATE_POINTER_TEST(_field, _state, _test, _info, _type) { \
337 .name = (stringify(_field)), \
338 .info = &(_info), \
339 .field_exists = (_test), \
340 .size = sizeof(_type), \
341 .flags = VMS_SINGLE|VMS_POINTER, \
342 .offset = vmstate_offset_value(_state, _field, _type), \
343 }
344
345 #define VMSTATE_ARRAY(_field, _state, _num, _version, _info, _type) {\
346 .name = (stringify(_field)), \
347 .version_id = (_version), \
348 .num = (_num), \
349 .info = &(_info), \
350 .size = sizeof(_type), \
351 .flags = VMS_ARRAY, \
352 .offset = vmstate_offset_array(_state, _field, _type, _num), \
353 }
354
355 #define VMSTATE_2DARRAY(_field, _state, _n1, _n2, _version, _info, _type) { \
356 .name = (stringify(_field)), \
357 .version_id = (_version), \
358 .num = (_n1) * (_n2), \
359 .info = &(_info), \
360 .size = sizeof(_type), \
361 .flags = VMS_ARRAY, \
362 .offset = vmstate_offset_2darray(_state, _field, _type, _n1, _n2), \
363 }
364
365 #define VMSTATE_VARRAY_MULTIPLY(_field, _state, _field_num, _multiply, _info, _type) { \
366 .name = (stringify(_field)), \
367 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\
368 .num = (_multiply), \
369 .info = &(_info), \
370 .size = sizeof(_type), \
371 .flags = VMS_VARRAY_UINT32|VMS_MULTIPLY_ELEMENTS, \
372 .offset = vmstate_offset_varray(_state, _field, _type), \
373 }
374
375 #define VMSTATE_ARRAY_TEST(_field, _state, _num, _test, _info, _type) {\
376 .name = (stringify(_field)), \
377 .field_exists = (_test), \
378 .num = (_num), \
379 .info = &(_info), \
380 .size = sizeof(_type), \
381 .flags = VMS_ARRAY, \
382 .offset = vmstate_offset_array(_state, _field, _type, _num),\
383 }
384
385 #define VMSTATE_SUB_ARRAY(_field, _state, _start, _num, _version, _info, _type) { \
386 .name = (stringify(_field)), \
387 .version_id = (_version), \
388 .num = (_num), \
389 .info = &(_info), \
390 .size = sizeof(_type), \
391 .flags = VMS_ARRAY, \
392 .offset = vmstate_offset_sub_array(_state, _field, _type, _start), \
393 }
394
395 #define VMSTATE_ARRAY_INT32_UNSAFE(_field, _state, _field_num, _info, _type) {\
396 .name = (stringify(_field)), \
397 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \
398 .info = &(_info), \
399 .size = sizeof(_type), \
400 .flags = VMS_VARRAY_INT32, \
401 .offset = vmstate_offset_varray(_state, _field, _type), \
402 }
403
404 #define VMSTATE_VARRAY_INT32(_field, _state, _field_num, _version, _info, _type) {\
405 .name = (stringify(_field)), \
406 .version_id = (_version), \
407 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \
408 .info = &(_info), \
409 .size = sizeof(_type), \
410 .flags = VMS_VARRAY_INT32|VMS_POINTER, \
411 .offset = vmstate_offset_pointer(_state, _field, _type), \
412 }
413
414 #define VMSTATE_VARRAY_UINT32(_field, _state, _field_num, _version, _info, _type) {\
415 .name = (stringify(_field)), \
416 .version_id = (_version), \
417 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\
418 .info = &(_info), \
419 .size = sizeof(_type), \
420 .flags = VMS_VARRAY_UINT32|VMS_POINTER, \
421 .offset = vmstate_offset_pointer(_state, _field, _type), \
422 }
423
424 #define VMSTATE_VARRAY_UINT32_ALLOC(_field, _state, _field_num, _version, _info, _type) {\
425 .name = (stringify(_field)), \
426 .version_id = (_version), \
427 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\
428 .info = &(_info), \
429 .size = sizeof(_type), \
430 .flags = VMS_VARRAY_UINT32|VMS_POINTER|VMS_ALLOC, \
431 .offset = vmstate_offset_pointer(_state, _field, _type), \
432 }
433
434 #define VMSTATE_VARRAY_UINT16_UNSAFE(_field, _state, _field_num, _version, _info, _type) {\
435 .name = (stringify(_field)), \
436 .version_id = (_version), \
437 .num_offset = vmstate_offset_value(_state, _field_num, uint16_t),\
438 .info = &(_info), \
439 .size = sizeof(_type), \
440 .flags = VMS_VARRAY_UINT16, \
441 .offset = vmstate_offset_varray(_state, _field, _type), \
442 }
443
444 #define VMSTATE_VSTRUCT_TEST(_field, _state, _test, _version, _vmsd, _type, _struct_version) { \
445 .name = (stringify(_field)), \
446 .version_id = (_version), \
447 .struct_version_id = (_struct_version), \
448 .field_exists = (_test), \
449 .vmsd = &(_vmsd), \
450 .size = sizeof(_type), \
451 .flags = VMS_VSTRUCT, \
452 .offset = vmstate_offset_value(_state, _field, _type), \
453 }
454
455 #define VMSTATE_STRUCT_TEST(_field, _state, _test, _version, _vmsd, _type) { \
456 .name = (stringify(_field)), \
457 .version_id = (_version), \
458 .field_exists = (_test), \
459 .vmsd = &(_vmsd), \
460 .size = sizeof(_type), \
461 .flags = VMS_STRUCT, \
462 .offset = vmstate_offset_value(_state, _field, _type), \
463 }
464
465 #define VMSTATE_STRUCT_POINTER_V(_field, _state, _version, _vmsd, _type) { \
466 .name = (stringify(_field)), \
467 .version_id = (_version), \
468 .vmsd = &(_vmsd), \
469 .size = sizeof(_type *), \
470 .flags = VMS_STRUCT|VMS_POINTER, \
471 .offset = vmstate_offset_pointer(_state, _field, _type), \
472 }
473
474 #define VMSTATE_STRUCT_POINTER_TEST_V(_field, _state, _test, _version, _vmsd, _type) { \
475 .name = (stringify(_field)), \
476 .version_id = (_version), \
477 .field_exists = (_test), \
478 .vmsd = &(_vmsd), \
479 .size = sizeof(_type *), \
480 .flags = VMS_STRUCT|VMS_POINTER, \
481 .offset = vmstate_offset_pointer(_state, _field, _type), \
482 }
483
484 #define VMSTATE_ARRAY_OF_POINTER(_field, _state, _num, _version, _info, _type) {\
485 .name = (stringify(_field)), \
486 .version_id = (_version), \
487 .num = (_num), \
488 .info = &(_info), \
489 .size = sizeof(_type), \
490 .flags = VMS_ARRAY|VMS_ARRAY_OF_POINTER, \
491 .offset = vmstate_offset_array(_state, _field, _type, _num), \
492 }
493
494 #define VMSTATE_ARRAY_OF_POINTER_TO_STRUCT(_f, _s, _n, _v, _vmsd, _type) { \
495 .name = (stringify(_f)), \
496 .version_id = (_v), \
497 .num = (_n), \
498 .vmsd = &(_vmsd), \
499 .size = sizeof(_type *), \
500 .flags = VMS_ARRAY|VMS_STRUCT|VMS_ARRAY_OF_POINTER, \
501 .offset = vmstate_offset_array(_s, _f, _type*, _n), \
502 }
503
504 #define VMSTATE_STRUCT_SUB_ARRAY(_field, _state, _start, _num, _version, _vmsd, _type) { \
505 .name = (stringify(_field)), \
506 .version_id = (_version), \
507 .num = (_num), \
508 .vmsd = &(_vmsd), \
509 .size = sizeof(_type), \
510 .flags = VMS_STRUCT|VMS_ARRAY, \
511 .offset = vmstate_offset_sub_array(_state, _field, _type, _start), \
512 }
513
514 #define VMSTATE_STRUCT_ARRAY_TEST(_field, _state, _num, _test, _version, _vmsd, _type) { \
515 .name = (stringify(_field)), \
516 .num = (_num), \
517 .field_exists = (_test), \
518 .version_id = (_version), \
519 .vmsd = &(_vmsd), \
520 .size = sizeof(_type), \
521 .flags = VMS_STRUCT|VMS_ARRAY, \
522 .offset = vmstate_offset_array(_state, _field, _type, _num),\
523 }
524
525 #define VMSTATE_STRUCT_2DARRAY_TEST(_field, _state, _n1, _n2, _test, \
526 _version, _vmsd, _type) { \
527 .name = (stringify(_field)), \
528 .num = (_n1) * (_n2), \
529 .field_exists = (_test), \
530 .version_id = (_version), \
531 .vmsd = &(_vmsd), \
532 .size = sizeof(_type), \
533 .flags = VMS_STRUCT | VMS_ARRAY, \
534 .offset = vmstate_offset_2darray(_state, _field, _type, \
535 _n1, _n2), \
536 }
537
538 #define VMSTATE_STRUCT_VARRAY_UINT8(_field, _state, _field_num, _version, _vmsd, _type) { \
539 .name = (stringify(_field)), \
540 .num_offset = vmstate_offset_value(_state, _field_num, uint8_t), \
541 .version_id = (_version), \
542 .vmsd = &(_vmsd), \
543 .size = sizeof(_type), \
544 .flags = VMS_STRUCT|VMS_VARRAY_UINT8, \
545 .offset = vmstate_offset_varray(_state, _field, _type), \
546 }
547
548 /* a variable length array (i.e. _type *_field) but we know the
549 * length
550 */
551 #define VMSTATE_STRUCT_VARRAY_POINTER_KNOWN(_field, _state, _num, _version, _vmsd, _type) { \
552 .name = (stringify(_field)), \
553 .num = (_num), \
554 .version_id = (_version), \
555 .vmsd = &(_vmsd), \
556 .size = sizeof(_type), \
557 .flags = VMS_STRUCT|VMS_ARRAY|VMS_POINTER, \
558 .offset = offsetof(_state, _field), \
559 }
560
561 #define VMSTATE_STRUCT_VARRAY_POINTER_INT32(_field, _state, _field_num, _vmsd, _type) { \
562 .name = (stringify(_field)), \
563 .version_id = 0, \
564 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \
565 .size = sizeof(_type), \
566 .vmsd = &(_vmsd), \
567 .flags = VMS_POINTER | VMS_VARRAY_INT32 | VMS_STRUCT, \
568 .offset = vmstate_offset_pointer(_state, _field, _type), \
569 }
570
571 #define VMSTATE_STRUCT_VARRAY_POINTER_UINT32(_field, _state, _field_num, _vmsd, _type) { \
572 .name = (stringify(_field)), \
573 .version_id = 0, \
574 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\
575 .size = sizeof(_type), \
576 .vmsd = &(_vmsd), \
577 .flags = VMS_POINTER | VMS_VARRAY_INT32 | VMS_STRUCT, \
578 .offset = vmstate_offset_pointer(_state, _field, _type), \
579 }
580
581 #define VMSTATE_STRUCT_VARRAY_POINTER_UINT16(_field, _state, _field_num, _vmsd, _type) { \
582 .name = (stringify(_field)), \
583 .version_id = 0, \
584 .num_offset = vmstate_offset_value(_state, _field_num, uint16_t),\
585 .size = sizeof(_type), \
586 .vmsd = &(_vmsd), \
587 .flags = VMS_POINTER | VMS_VARRAY_UINT16 | VMS_STRUCT, \
588 .offset = vmstate_offset_pointer(_state, _field, _type), \
589 }
590
591 #define VMSTATE_STRUCT_VARRAY_INT32(_field, _state, _field_num, _version, _vmsd, _type) { \
592 .name = (stringify(_field)), \
593 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \
594 .version_id = (_version), \
595 .vmsd = &(_vmsd), \
596 .size = sizeof(_type), \
597 .flags = VMS_STRUCT|VMS_VARRAY_INT32, \
598 .offset = vmstate_offset_varray(_state, _field, _type), \
599 }
600
601 #define VMSTATE_STRUCT_VARRAY_UINT32(_field, _state, _field_num, _version, _vmsd, _type) { \
602 .name = (stringify(_field)), \
603 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t), \
604 .version_id = (_version), \
605 .vmsd = &(_vmsd), \
606 .size = sizeof(_type), \
607 .flags = VMS_STRUCT|VMS_VARRAY_UINT32, \
608 .offset = vmstate_offset_varray(_state, _field, _type), \
609 }
610
611 #define VMSTATE_STRUCT_VARRAY_ALLOC(_field, _state, _field_num, _version, _vmsd, _type) {\
612 .name = (stringify(_field)), \
613 .version_id = (_version), \
614 .vmsd = &(_vmsd), \
615 .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \
616 .size = sizeof(_type), \
617 .flags = VMS_STRUCT|VMS_VARRAY_INT32|VMS_ALLOC|VMS_POINTER, \
618 .offset = vmstate_offset_pointer(_state, _field, _type), \
619 }
620
621 #define VMSTATE_STATIC_BUFFER(_field, _state, _version, _test, _start, _size) { \
622 .name = (stringify(_field)), \
623 .version_id = (_version), \
624 .field_exists = (_test), \
625 .size = (_size - _start), \
626 .info = &vmstate_info_buffer, \
627 .flags = VMS_BUFFER, \
628 .offset = vmstate_offset_buffer(_state, _field) + _start, \
629 }
630
631 #define VMSTATE_VBUFFER_MULTIPLY(_field, _state, _version, _test, \
632 _field_size, _multiply) { \
633 .name = (stringify(_field)), \
634 .version_id = (_version), \
635 .field_exists = (_test), \
636 .size_offset = vmstate_offset_value(_state, _field_size, uint32_t),\
637 .size = (_multiply), \
638 .info = &vmstate_info_buffer, \
639 .flags = VMS_VBUFFER|VMS_POINTER|VMS_MULTIPLY, \
640 .offset = offsetof(_state, _field), \
641 }
642
643 #define VMSTATE_VBUFFER(_field, _state, _version, _test, _field_size) { \
644 .name = (stringify(_field)), \
645 .version_id = (_version), \
646 .field_exists = (_test), \
647 .size_offset = vmstate_offset_value(_state, _field_size, int32_t),\
648 .info = &vmstate_info_buffer, \
649 .flags = VMS_VBUFFER|VMS_POINTER, \
650 .offset = offsetof(_state, _field), \
651 }
652
653 #define VMSTATE_VBUFFER_UINT32(_field, _state, _version, _test, _field_size) { \
654 .name = (stringify(_field)), \
655 .version_id = (_version), \
656 .field_exists = (_test), \
657 .size_offset = vmstate_offset_value(_state, _field_size, uint32_t),\
658 .info = &vmstate_info_buffer, \
659 .flags = VMS_VBUFFER|VMS_POINTER, \
660 .offset = offsetof(_state, _field), \
661 }
662
663 #define VMSTATE_VBUFFER_ALLOC_UINT32(_field, _state, _version, \
664 _test, _field_size) { \
665 .name = (stringify(_field)), \
666 .version_id = (_version), \
667 .field_exists = (_test), \
668 .size_offset = vmstate_offset_value(_state, _field_size, uint32_t),\
669 .info = &vmstate_info_buffer, \
670 .flags = VMS_VBUFFER|VMS_POINTER|VMS_ALLOC, \
671 .offset = offsetof(_state, _field), \
672 }
673
674 #define VMSTATE_BUFFER_UNSAFE_INFO_TEST(_field, _state, _test, _version, _info, _size) { \
675 .name = (stringify(_field)), \
676 .version_id = (_version), \
677 .field_exists = (_test), \
678 .size = (_size), \
679 .info = &(_info), \
680 .flags = VMS_BUFFER, \
681 .offset = offsetof(_state, _field), \
682 }
683
684 #define VMSTATE_BUFFER_POINTER_UNSAFE(_field, _state, _version, _size) { \
685 .name = (stringify(_field)), \
686 .version_id = (_version), \
687 .size = (_size), \
688 .info = &vmstate_info_buffer, \
689 .flags = VMS_BUFFER|VMS_POINTER, \
690 .offset = offsetof(_state, _field), \
691 }
692
693 /* Allocate a temporary of type 'tmp_type', set tmp->parent to _state
694 * and execute the vmsd on the temporary. Note that we're working with
695 * the whole of _state here, not a field within it.
696 * We compile time check that:
697 * That _tmp_type contains a 'parent' member that's a pointer to the
698 * '_state' type
699 * That the pointer is right at the start of _tmp_type.
700 */
701 #define VMSTATE_WITH_TMP(_state, _tmp_type, _vmsd) { \
702 .name = "tmp", \
703 .size = sizeof(_tmp_type) + \
704 QEMU_BUILD_BUG_ON_ZERO(offsetof(_tmp_type, parent) != 0) + \
705 type_check_pointer(_state, \
706 typeof_field(_tmp_type, parent)), \
707 .vmsd = &(_vmsd), \
708 .info = &vmstate_info_tmp, \
709 }
710
711 #define VMSTATE_UNUSED_BUFFER(_test, _version, _size) { \
712 .name = "unused", \
713 .field_exists = (_test), \
714 .version_id = (_version), \
715 .size = (_size), \
716 .info = &vmstate_info_unused_buffer, \
717 .flags = VMS_BUFFER, \
718 }
719
720 /* Discard size * field_num bytes, where field_num is a uint32 member */
721 #define VMSTATE_UNUSED_VARRAY_UINT32(_state, _test, _version, _field_num, _size) {\
722 .name = "unused", \
723 .field_exists = (_test), \
724 .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\
725 .version_id = (_version), \
726 .size = (_size), \
727 .info = &vmstate_info_unused_buffer, \
728 .flags = VMS_VARRAY_UINT32 | VMS_BUFFER, \
729 }
730
731 /* _field_size should be a int32_t field in the _state struct giving the
732 * size of the bitmap _field in bits.
733 */
734 #define VMSTATE_BITMAP(_field, _state, _version, _field_size) { \
735 .name = (stringify(_field)), \
736 .version_id = (_version), \
737 .size_offset = vmstate_offset_value(_state, _field_size, int32_t),\
738 .info = &vmstate_info_bitmap, \
739 .flags = VMS_VBUFFER|VMS_POINTER, \
740 .offset = offsetof(_state, _field), \
741 }
742
743 /* For migrating a QTAILQ.
744 * Target QTAILQ needs be properly initialized.
745 * _type: type of QTAILQ element
746 * _next: name of QTAILQ entry field in QTAILQ element
747 * _vmsd: VMSD for QTAILQ element
748 * size: size of QTAILQ element
749 * start: offset of QTAILQ entry in QTAILQ element
750 */
751 #define VMSTATE_QTAILQ_V(_field, _state, _version, _vmsd, _type, _next) \
752 { \
753 .name = (stringify(_field)), \
754 .version_id = (_version), \
755 .vmsd = &(_vmsd), \
756 .size = sizeof(_type), \
757 .info = &vmstate_info_qtailq, \
758 .offset = offsetof(_state, _field), \
759 .start = offsetof(_type, _next), \
760 }
761
762 /*
763 * For migrating a GTree whose key is a pointer to _key_type and the
764 * value, a pointer to _val_type
765 * The target tree must have been properly initialized
766 * _vmsd: Start address of the 2 element array containing the data vmsd
767 * and the key vmsd, in that order
768 * _key_type: type of the key
769 * _val_type: type of the value
770 */
771 #define VMSTATE_GTREE_V(_field, _state, _version, _vmsd, \
772 _key_type, _val_type) \
773 { \
774 .name = (stringify(_field)), \
775 .version_id = (_version), \
776 .vmsd = (_vmsd), \
777 .info = &vmstate_info_gtree, \
778 .start = sizeof(_key_type), \
779 .size = sizeof(_val_type), \
780 .offset = offsetof(_state, _field), \
781 }
782
783 /*
784 * For migrating a GTree with direct key and the value a pointer
785 * to _val_type
786 * The target tree must have been properly initialized
787 * _vmsd: data vmsd
788 * _val_type: type of the value
789 */
790 #define VMSTATE_GTREE_DIRECT_KEY_V(_field, _state, _version, _vmsd, _val_type) \
791 { \
792 .name = (stringify(_field)), \
793 .version_id = (_version), \
794 .vmsd = (_vmsd), \
795 .info = &vmstate_info_gtree, \
796 .start = 0, \
797 .size = sizeof(_val_type), \
798 .offset = offsetof(_state, _field), \
799 }
800
801 /* _f : field name
802 _f_n : num of elements field_name
803 _n : num of elements
804 _s : struct state name
805 _v : version
806 */
807
808 #define VMSTATE_SINGLE(_field, _state, _version, _info, _type) \
809 VMSTATE_SINGLE_TEST(_field, _state, NULL, _version, _info, _type)
810
811 #define VMSTATE_VSTRUCT(_field, _state, _vmsd, _type, _struct_version)\
812 VMSTATE_VSTRUCT_TEST(_field, _state, NULL, 0, _vmsd, _type, _struct_version)
813
814 #define VMSTATE_VSTRUCT_V(_field, _state, _version, _vmsd, _type, _struct_version) \
815 VMSTATE_VSTRUCT_TEST(_field, _state, NULL, _version, _vmsd, _type, \
816 _struct_version)
817
818 #define VMSTATE_STRUCT(_field, _state, _version, _vmsd, _type) \
819 VMSTATE_STRUCT_TEST(_field, _state, NULL, _version, _vmsd, _type)
820
821 #define VMSTATE_STRUCT_POINTER(_field, _state, _vmsd, _type) \
822 VMSTATE_STRUCT_POINTER_V(_field, _state, 0, _vmsd, _type)
823
824 #define VMSTATE_STRUCT_POINTER_TEST(_field, _state, _test, _vmsd, _type) \
825 VMSTATE_STRUCT_POINTER_TEST_V(_field, _state, _test, 0, _vmsd, _type)
826
827 #define VMSTATE_STRUCT_ARRAY(_field, _state, _num, _version, _vmsd, _type) \
828 VMSTATE_STRUCT_ARRAY_TEST(_field, _state, _num, NULL, _version, \
829 _vmsd, _type)
830
831 #define VMSTATE_STRUCT_2DARRAY(_field, _state, _n1, _n2, _version, \
832 _vmsd, _type) \
833 VMSTATE_STRUCT_2DARRAY_TEST(_field, _state, _n1, _n2, NULL, \
834 _version, _vmsd, _type)
835
836 #define VMSTATE_BUFFER_UNSAFE_INFO(_field, _state, _version, _info, _size) \
837 VMSTATE_BUFFER_UNSAFE_INFO_TEST(_field, _state, NULL, _version, _info, \
838 _size)
839
840 #define VMSTATE_BOOL_V(_f, _s, _v) \
841 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_bool, bool)
842
843 #define VMSTATE_INT8_V(_f, _s, _v) \
844 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int8, int8_t)
845 #define VMSTATE_INT16_V(_f, _s, _v) \
846 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int16, int16_t)
847 #define VMSTATE_INT32_V(_f, _s, _v) \
848 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int32, int32_t)
849 #define VMSTATE_INT64_V(_f, _s, _v) \
850 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int64, int64_t)
851
852 #define VMSTATE_UINT8_V(_f, _s, _v) \
853 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint8, uint8_t)
854 #define VMSTATE_UINT16_V(_f, _s, _v) \
855 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint16, uint16_t)
856 #define VMSTATE_UINT32_V(_f, _s, _v) \
857 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint32, uint32_t)
858 #define VMSTATE_UINT64_V(_f, _s, _v) \
859 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint64, uint64_t)
860
861 #ifdef CONFIG_LINUX
862
863 #define VMSTATE_U8_V(_f, _s, _v) \
864 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint8, __u8)
865 #define VMSTATE_U16_V(_f, _s, _v) \
866 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint16, __u16)
867 #define VMSTATE_U32_V(_f, _s, _v) \
868 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint32, __u32)
869 #define VMSTATE_U64_V(_f, _s, _v) \
870 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint64, __u64)
871
872 #endif
873
874 #define VMSTATE_BOOL(_f, _s) \
875 VMSTATE_BOOL_V(_f, _s, 0)
876
877 #define VMSTATE_INT8(_f, _s) \
878 VMSTATE_INT8_V(_f, _s, 0)
879 #define VMSTATE_INT16(_f, _s) \
880 VMSTATE_INT16_V(_f, _s, 0)
881 #define VMSTATE_INT32(_f, _s) \
882 VMSTATE_INT32_V(_f, _s, 0)
883 #define VMSTATE_INT64(_f, _s) \
884 VMSTATE_INT64_V(_f, _s, 0)
885
886 #define VMSTATE_UINT8(_f, _s) \
887 VMSTATE_UINT8_V(_f, _s, 0)
888 #define VMSTATE_UINT16(_f, _s) \
889 VMSTATE_UINT16_V(_f, _s, 0)
890 #define VMSTATE_UINT32(_f, _s) \
891 VMSTATE_UINT32_V(_f, _s, 0)
892 #define VMSTATE_UINT64(_f, _s) \
893 VMSTATE_UINT64_V(_f, _s, 0)
894
895 #ifdef CONFIG_LINUX
896
897 #define VMSTATE_U8(_f, _s) \
898 VMSTATE_U8_V(_f, _s, 0)
899 #define VMSTATE_U16(_f, _s) \
900 VMSTATE_U16_V(_f, _s, 0)
901 #define VMSTATE_U32(_f, _s) \
902 VMSTATE_U32_V(_f, _s, 0)
903 #define VMSTATE_U64(_f, _s) \
904 VMSTATE_U64_V(_f, _s, 0)
905
906 #endif
907
908 #define VMSTATE_UINT8_EQUAL(_f, _s, _err_hint) \
909 VMSTATE_SINGLE_FULL(_f, _s, 0, 0, \
910 vmstate_info_uint8_equal, uint8_t, _err_hint)
911
912 #define VMSTATE_UINT16_EQUAL(_f, _s, _err_hint) \
913 VMSTATE_SINGLE_FULL(_f, _s, 0, 0, \
914 vmstate_info_uint16_equal, uint16_t, _err_hint)
915
916 #define VMSTATE_UINT16_EQUAL_V(_f, _s, _v, _err_hint) \
917 VMSTATE_SINGLE_FULL(_f, _s, 0, _v, \
918 vmstate_info_uint16_equal, uint16_t, _err_hint)
919
920 #define VMSTATE_INT32_EQUAL(_f, _s, _err_hint) \
921 VMSTATE_SINGLE_FULL(_f, _s, 0, 0, \
922 vmstate_info_int32_equal, int32_t, _err_hint)
923
924 #define VMSTATE_UINT32_EQUAL_V(_f, _s, _v, _err_hint) \
925 VMSTATE_SINGLE_FULL(_f, _s, 0, _v, \
926 vmstate_info_uint32_equal, uint32_t, _err_hint)
927
928 #define VMSTATE_UINT32_EQUAL(_f, _s, _err_hint) \
929 VMSTATE_UINT32_EQUAL_V(_f, _s, 0, _err_hint)
930
931 #define VMSTATE_UINT64_EQUAL_V(_f, _s, _v, _err_hint) \
932 VMSTATE_SINGLE_FULL(_f, _s, 0, _v, \
933 vmstate_info_uint64_equal, uint64_t, _err_hint)
934
935 #define VMSTATE_UINT64_EQUAL(_f, _s, _err_hint) \
936 VMSTATE_UINT64_EQUAL_V(_f, _s, 0, _err_hint)
937
938 #define VMSTATE_INT32_POSITIVE_LE(_f, _s) \
939 VMSTATE_SINGLE(_f, _s, 0, vmstate_info_int32_le, int32_t)
940
941 #define VMSTATE_BOOL_TEST(_f, _s, _t) \
942 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_bool, bool)
943
944 #define VMSTATE_INT8_TEST(_f, _s, _t) \
945 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_int8, int8_t)
946
947 #define VMSTATE_INT16_TEST(_f, _s, _t) \
948 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_int16, int16_t)
949
950 #define VMSTATE_INT32_TEST(_f, _s, _t) \
951 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_int32, int32_t)
952
953 #define VMSTATE_INT64_TEST(_f, _s, _t) \
954 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_int64, int64_t)
955
956 #define VMSTATE_UINT8_TEST(_f, _s, _t) \
957 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint8, uint8_t)
958
959 #define VMSTATE_UINT16_TEST(_f, _s, _t) \
960 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint16, uint16_t)
961
962 #define VMSTATE_UINT32_TEST(_f, _s, _t) \
963 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint32, uint32_t)
964
965 #define VMSTATE_UINT64_TEST(_f, _s, _t) \
966 VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint64, uint64_t)
967
968
969 #define VMSTATE_FLOAT64_V(_f, _s, _v) \
970 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_float64, float64)
971
972 #define VMSTATE_FLOAT64(_f, _s) \
973 VMSTATE_FLOAT64_V(_f, _s, 0)
974
975 #define VMSTATE_TIMER_PTR_TEST(_f, _s, _test) \
976 VMSTATE_POINTER_TEST(_f, _s, _test, vmstate_info_timer, QEMUTimer *)
977
978 #define VMSTATE_TIMER_PTR_V(_f, _s, _v) \
979 VMSTATE_POINTER(_f, _s, _v, vmstate_info_timer, QEMUTimer *)
980
981 #define VMSTATE_TIMER_PTR(_f, _s) \
982 VMSTATE_TIMER_PTR_V(_f, _s, 0)
983
984 #define VMSTATE_TIMER_PTR_ARRAY(_f, _s, _n) \
985 VMSTATE_ARRAY_OF_POINTER(_f, _s, _n, 0, vmstate_info_timer, QEMUTimer *)
986
987 #define VMSTATE_TIMER_TEST(_f, _s, _test) \
988 VMSTATE_SINGLE_TEST(_f, _s, _test, 0, vmstate_info_timer, QEMUTimer)
989
990 #define VMSTATE_TIMER_V(_f, _s, _v) \
991 VMSTATE_SINGLE(_f, _s, _v, vmstate_info_timer, QEMUTimer)
992
993 #define VMSTATE_TIMER(_f, _s) \
994 VMSTATE_TIMER_V(_f, _s, 0)
995
996 #define VMSTATE_TIMER_ARRAY(_f, _s, _n) \
997 VMSTATE_ARRAY(_f, _s, _n, 0, vmstate_info_timer, QEMUTimer)
998
999 #define VMSTATE_BOOL_ARRAY_V(_f, _s, _n, _v) \
1000 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_bool, bool)
1001
1002 #define VMSTATE_BOOL_ARRAY(_f, _s, _n) \
1003 VMSTATE_BOOL_ARRAY_V(_f, _s, _n, 0)
1004
1005 #define VMSTATE_BOOL_SUB_ARRAY(_f, _s, _start, _num) \
1006 VMSTATE_SUB_ARRAY(_f, _s, _start, _num, 0, vmstate_info_bool, bool)
1007
1008 #define VMSTATE_UINT16_ARRAY_V(_f, _s, _n, _v) \
1009 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint16, uint16_t)
1010
1011 #define VMSTATE_UINT16_2DARRAY_V(_f, _s, _n1, _n2, _v) \
1012 VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint16, uint16_t)
1013
1014 #define VMSTATE_UINT16_ARRAY(_f, _s, _n) \
1015 VMSTATE_UINT16_ARRAY_V(_f, _s, _n, 0)
1016
1017 #define VMSTATE_UINT16_SUB_ARRAY(_f, _s, _start, _num) \
1018 VMSTATE_SUB_ARRAY(_f, _s, _start, _num, 0, vmstate_info_uint16, uint16_t)
1019
1020 #define VMSTATE_UINT16_2DARRAY(_f, _s, _n1, _n2) \
1021 VMSTATE_UINT16_2DARRAY_V(_f, _s, _n1, _n2, 0)
1022
1023 #define VMSTATE_UINT8_2DARRAY_V(_f, _s, _n1, _n2, _v) \
1024 VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint8, uint8_t)
1025
1026 #define VMSTATE_UINT8_ARRAY_V(_f, _s, _n, _v) \
1027 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint8, uint8_t)
1028
1029 #define VMSTATE_UINT8_ARRAY(_f, _s, _n) \
1030 VMSTATE_UINT8_ARRAY_V(_f, _s, _n, 0)
1031
1032 #define VMSTATE_UINT8_SUB_ARRAY(_f, _s, _start, _num) \
1033 VMSTATE_SUB_ARRAY(_f, _s, _start, _num, 0, vmstate_info_uint8, uint8_t)
1034
1035 #define VMSTATE_UINT8_2DARRAY(_f, _s, _n1, _n2) \
1036 VMSTATE_UINT8_2DARRAY_V(_f, _s, _n1, _n2, 0)
1037
1038 #define VMSTATE_UINT32_ARRAY_V(_f, _s, _n, _v) \
1039 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint32, uint32_t)
1040
1041 #define VMSTATE_UINT32_2DARRAY_V(_f, _s, _n1, _n2, _v) \
1042 VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint32, uint32_t)
1043
1044 #define VMSTATE_UINT32_ARRAY(_f, _s, _n) \
1045 VMSTATE_UINT32_ARRAY_V(_f, _s, _n, 0)
1046
1047 #define VMSTATE_UINT32_SUB_ARRAY(_f, _s, _start, _num) \
1048 VMSTATE_SUB_ARRAY(_f, _s, _start, _num, 0, vmstate_info_uint32, uint32_t)
1049
1050 #define VMSTATE_UINT32_2DARRAY(_f, _s, _n1, _n2) \
1051 VMSTATE_UINT32_2DARRAY_V(_f, _s, _n1, _n2, 0)
1052
1053 #define VMSTATE_UINT64_ARRAY_V(_f, _s, _n, _v) \
1054 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint64, uint64_t)
1055
1056 #define VMSTATE_UINT64_ARRAY(_f, _s, _n) \
1057 VMSTATE_UINT64_ARRAY_V(_f, _s, _n, 0)
1058
1059 #define VMSTATE_UINT64_SUB_ARRAY(_f, _s, _start, _num) \
1060 VMSTATE_SUB_ARRAY(_f, _s, _start, _num, 0, vmstate_info_uint64, uint64_t)
1061
1062 #define VMSTATE_UINT64_2DARRAY(_f, _s, _n1, _n2) \
1063 VMSTATE_UINT64_2DARRAY_V(_f, _s, _n1, _n2, 0)
1064
1065 #define VMSTATE_UINT64_2DARRAY_V(_f, _s, _n1, _n2, _v) \
1066 VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint64, uint64_t)
1067
1068 #define VMSTATE_INT16_ARRAY_V(_f, _s, _n, _v) \
1069 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int16, int16_t)
1070
1071 #define VMSTATE_INT16_ARRAY(_f, _s, _n) \
1072 VMSTATE_INT16_ARRAY_V(_f, _s, _n, 0)
1073
1074 #define VMSTATE_INT32_ARRAY_V(_f, _s, _n, _v) \
1075 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int32, int32_t)
1076
1077 #define VMSTATE_INT32_ARRAY(_f, _s, _n) \
1078 VMSTATE_INT32_ARRAY_V(_f, _s, _n, 0)
1079
1080 #define VMSTATE_INT64_ARRAY_V(_f, _s, _n, _v) \
1081 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int64, int64_t)
1082
1083 #define VMSTATE_INT64_ARRAY(_f, _s, _n) \
1084 VMSTATE_INT64_ARRAY_V(_f, _s, _n, 0)
1085
1086 #define VMSTATE_FLOAT64_ARRAY_V(_f, _s, _n, _v) \
1087 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_float64, float64)
1088
1089 #define VMSTATE_FLOAT64_ARRAY(_f, _s, _n) \
1090 VMSTATE_FLOAT64_ARRAY_V(_f, _s, _n, 0)
1091
1092 #define VMSTATE_CPUDOUBLE_ARRAY_V(_f, _s, _n, _v) \
1093 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_cpudouble, CPU_DoubleU)
1094
1095 #define VMSTATE_CPUDOUBLE_ARRAY(_f, _s, _n) \
1096 VMSTATE_CPUDOUBLE_ARRAY_V(_f, _s, _n, 0)
1097
1098 #define VMSTATE_BUFFER_V(_f, _s, _v) \
1099 VMSTATE_STATIC_BUFFER(_f, _s, _v, NULL, 0, sizeof(typeof_field(_s, _f)))
1100
1101 #define VMSTATE_BUFFER(_f, _s) \
1102 VMSTATE_BUFFER_V(_f, _s, 0)
1103
1104 #define VMSTATE_PARTIAL_BUFFER(_f, _s, _size) \
1105 VMSTATE_STATIC_BUFFER(_f, _s, 0, NULL, 0, _size)
1106
1107 #define VMSTATE_BUFFER_START_MIDDLE_V(_f, _s, _start, _v) \
1108 VMSTATE_STATIC_BUFFER(_f, _s, _v, NULL, _start, sizeof(typeof_field(_s, _f)))
1109
1110 #define VMSTATE_BUFFER_START_MIDDLE(_f, _s, _start) \
1111 VMSTATE_BUFFER_START_MIDDLE_V(_f, _s, _start, 0)
1112
1113 #define VMSTATE_PARTIAL_VBUFFER(_f, _s, _size) \
1114 VMSTATE_VBUFFER(_f, _s, 0, NULL, _size)
1115
1116 #define VMSTATE_PARTIAL_VBUFFER_UINT32(_f, _s, _size) \
1117 VMSTATE_VBUFFER_UINT32(_f, _s, 0, NULL, _size)
1118
1119 #define VMSTATE_BUFFER_TEST(_f, _s, _test) \
1120 VMSTATE_STATIC_BUFFER(_f, _s, 0, _test, 0, sizeof(typeof_field(_s, _f)))
1121
1122 #define VMSTATE_BUFFER_UNSAFE(_field, _state, _version, _size) \
1123 VMSTATE_BUFFER_UNSAFE_INFO(_field, _state, _version, vmstate_info_buffer, _size)
1124
1125 /*
1126 * These VMSTATE_UNUSED*() macros can be used to fill in the holes
1127 * when some of the vmstate fields are obsolete to be compatible with
1128 * migrations between new/old binaries.
1129 *
1130 * CAUTION: when using any of the VMSTATE_UNUSED*() macros please be
1131 * sure that the size passed in is the size that was actually *sent*
1132 * rather than the size of the *structure*. One example is the
1133 * boolean type - the size of the structure can vary depending on the
1134 * definition of boolean, however the size we actually sent is always
1135 * 1 byte (please refer to implementation of VMSTATE_BOOL_V and
1136 * vmstate_info_bool). So here we should always pass in size==1
1137 * rather than size==sizeof(bool).
1138 */
1139 #define VMSTATE_UNUSED_V(_v, _size) \
1140 VMSTATE_UNUSED_BUFFER(NULL, _v, _size)
1141
1142 #define VMSTATE_UNUSED(_size) \
1143 VMSTATE_UNUSED_V(0, _size)
1144
1145 #define VMSTATE_UNUSED_TEST(_test, _size) \
1146 VMSTATE_UNUSED_BUFFER(_test, 0, _size)
1147
1148 #define VMSTATE_END_OF_LIST() \
1149 {}
1150
1151 int vmstate_load_state(QEMUFile *f, const VMStateDescription *vmsd,
1152 void *opaque, int version_id);
1153 int vmstate_save_state(QEMUFile *f, const VMStateDescription *vmsd,
1154 void *opaque, QJSON *vmdesc);
1155 int vmstate_save_state_v(QEMUFile *f, const VMStateDescription *vmsd,
1156 void *opaque, QJSON *vmdesc, int version_id);
1157
1158 bool vmstate_save_needed(const VMStateDescription *vmsd, void *opaque);
1159
1160 /* Returns: 0 on success, -1 on failure */
1161 int vmstate_register_with_alias_id(VMStateIf *obj, int instance_id,
1162 const VMStateDescription *vmsd,
1163 void *base, int alias_id,
1164 int required_for_version,
1165 Error **errp);
1166
1167 /* Returns: 0 on success, -1 on failure */
1168 static inline int vmstate_register(VMStateIf *obj, int instance_id,
1169 const VMStateDescription *vmsd,
1170 void *opaque)
1171 {
1172 return vmstate_register_with_alias_id(obj, instance_id, vmsd,
1173 opaque, -1, 0, NULL);
1174 }
1175
1176 void vmstate_unregister(VMStateIf *obj, const VMStateDescription *vmsd,
1177 void *opaque);
1178
1179 struct MemoryRegion;
1180 void vmstate_register_ram(struct MemoryRegion *memory, DeviceState *dev);
1181 void vmstate_unregister_ram(struct MemoryRegion *memory, DeviceState *dev);
1182 void vmstate_register_ram_global(struct MemoryRegion *memory);
1183
1184 bool vmstate_check_only_migratable(const VMStateDescription *vmsd);
1185
1186 #endif
AR7 emulation for QEMU