aboutsummaryrefslogtreecommitdiffstats
path: root/hw/hw.h
blob: c70397503507c86df385cbafc7a79351357c8f17 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
/* Declarations for use by hardware emulation.  */
#ifndef QEMU_HW_H
#define QEMU_HW_H

#include "qemu-common.h"

#if defined(TARGET_PHYS_ADDR_BITS) && !defined(NEED_CPU_H)
#include "targphys.h"
#include "poison.h"
#include "cpu-common.h"
#endif

#include "ioport.h"
#include "irq.h"

/* VM Load/Save */

/* This function writes a chunk of data to a file at the given position.
 * The pos argument can be ignored if the file is only being used for
 * streaming.  The handler should try to write all of the data it can.
 */
typedef int (QEMUFilePutBufferFunc)(void *opaque, const uint8_t *buf,
                                    int64_t pos, int size);

/* Read a chunk of data from a file at the given position.  The pos argument
 * can be ignored if the file is only be used for streaming.  The number of
 * bytes actually read should be returned.
 */
typedef int (QEMUFileGetBufferFunc)(void *opaque, uint8_t *buf,
                                    int64_t pos, int size);

/* Close a file and return an error code */
typedef int (QEMUFileCloseFunc)(void *opaque);

/* Called to determine if the file has exceeded it's bandwidth allocation.  The
 * bandwidth capping is a soft limit, not a hard limit.
 */
typedef int (QEMUFileRateLimit)(void *opaque);

/* Called to change the current bandwidth allocation. This function must return
 * the new actual bandwidth. It should be new_rate if everything goes ok, and
 * the old rate otherwise
 */
typedef size_t (QEMUFileSetRateLimit)(void *opaque, size_t new_rate);

QEMUFile *qemu_fopen_ops(void *opaque, QEMUFilePutBufferFunc *put_buffer,
                         QEMUFileGetBufferFunc *get_buffer,
                         QEMUFileCloseFunc *close,
                         QEMUFileRateLimit *rate_limit,
                         QEMUFileSetRateLimit *set_rate_limit);
QEMUFile *qemu_fopen(const char *filename, const char *mode);
QEMUFile *qemu_fdopen(int fd, const char *mode);
QEMUFile *qemu_fopen_socket(int fd);
QEMUFile *qemu_popen(FILE *popen_file, const char *mode);
QEMUFile *qemu_popen_cmd(const char *command, const char *mode);
int qemu_stdio_fd(QEMUFile *f);
void qemu_fflush(QEMUFile *f);
int qemu_fclose(QEMUFile *f);
void qemu_put_buffer(QEMUFile *f, const uint8_t *buf, int size);
void qemu_put_byte(QEMUFile *f, int v);

static inline void qemu_put_ubyte(QEMUFile *f, unsigned int v)
{
    qemu_put_byte(f, (int)v);
}

#define qemu_put_sbyte qemu_put_byte

void qemu_put_be16(QEMUFile *f, unsigned int v);
void qemu_put_be32(QEMUFile *f, unsigned int v);
void qemu_put_be64(QEMUFile *f, uint64_t v);
int qemu_get_buffer(QEMUFile *f, uint8_t *buf, int size);
int qemu_get_byte(QEMUFile *f);

static inline unsigned int qemu_get_ubyte(QEMUFile *f)
{
    return (unsigned int)qemu_get_byte(f);
}

#define qemu_get_sbyte qemu_get_byte

unsigned int qemu_get_be16(QEMUFile *f);
unsigned int qemu_get_be32(QEMUFile *f);
uint64_t qemu_get_be64(QEMUFile *f);
int qemu_file_rate_limit(QEMUFile *f);
size_t qemu_file_set_rate_limit(QEMUFile *f, size_t new_rate);
int qemu_file_has_error(QEMUFile *f);
void qemu_file_set_error(QEMUFile *f);

/* Try to send any outstanding data.  This function is useful when output is
 * halted due to rate limiting or EAGAIN errors occur as it can be used to
 * resume output. */
void qemu_file_put_notify(QEMUFile *f);

static inline void qemu_put_be64s(QEMUFile *f, const uint64_t *pv)
{
    qemu_put_be64(f, *pv);
}

static inline void qemu_put_be32s(QEMUFile *f, const uint32_t *pv)
{
    qemu_put_be32(f, *pv);
}

static inline void qemu_put_be16s(QEMUFile *f, const uint16_t *pv)
{
    qemu_put_be16(f, *pv);
}

static inline void qemu_put_8s(QEMUFile *f, const uint8_t *pv)
{
    qemu_put_byte(f, *pv);
}

static inline void qemu_get_be64s(QEMUFile *f, uint64_t *pv)
{
    *pv = qemu_get_be64(f);
}

static inline void qemu_get_be32s(QEMUFile *f, uint32_t *pv)
{
    *pv = qemu_get_be32(f);
}

static inline void qemu_get_be16s(QEMUFile *f, uint16_t *pv)
{
    *pv = qemu_get_be16(f);
}

static inline void qemu_get_8s(QEMUFile *f, uint8_t *pv)
{
    *pv = qemu_get_byte(f);
}

// Signed versions for type safety
static inline void qemu_put_sbuffer(QEMUFile *f, const int8_t *buf, int size)
{
    qemu_put_buffer(f, (const uint8_t *)buf, size);
}

static inline void qemu_put_sbe16(QEMUFile *f, int v)
{
    qemu_put_be16(f, (unsigned int)v);
}

static inline void qemu_put_sbe32(QEMUFile *f, int v)
{
    qemu_put_be32(f, (unsigned int)v);
}

static inline void qemu_put_sbe64(QEMUFile *f, int64_t v)
{
    qemu_put_be64(f, (uint64_t)v);
}

static inline size_t qemu_get_sbuffer(QEMUFile *f, int8_t *buf, int size)
{
    return qemu_get_buffer(f, (uint8_t *)buf, size);
}

static inline int qemu_get_sbe16(QEMUFile *f)
{
    return (int)qemu_get_be16(f);
}

static inline int qemu_get_sbe32(QEMUFile *f)
{
    return (int)qemu_get_be32(f);
}

static inline int64_t qemu_get_sbe64(QEMUFile *f)
{
    return (int64_t)qemu_get_be64(f);
}

static inline void qemu_put_s8s(QEMUFile *f, const int8_t *pv)
{
    qemu_put_8s(f, (const uint8_t *)pv);
}

static inline void qemu_put_sbe16s(QEMUFile *f, const int16_t *pv)
{
    qemu_put_be16s(f, (const uint16_t *)pv);
}

static inline void qemu_put_sbe32s(QEMUFile *f, const int32_t *pv)
{
    qemu_put_be32s(f, (const uint32_t *)pv);
}

static inline void qemu_put_sbe64s(QEMUFile *f, const int64_t *pv)
{
    qemu_put_be64s(f, (const uint64_t *)pv);
}

static inline void qemu_get_s8s(QEMUFile *f, int8_t *pv)
{
    qemu_get_8s(f, (uint8_t *)pv);
}

static inline void qemu_get_sbe16s(QEMUFile *f, int16_t *pv)
{
    qemu_get_be16s(f, (uint16_t *)pv);
}

static inline void qemu_get_sbe32s(QEMUFile *f, int32_t *pv)
{
    qemu_get_be32s(f, (uint32_t *)pv);
}

static inline void qemu_get_sbe64s(QEMUFile *f, int64_t *pv)
{
    qemu_get_be64s(f, (uint64_t *)pv);
}

#ifdef NEED_CPU_H
#if TARGET_LONG_BITS == 64
#define qemu_put_betl qemu_put_be64
#define qemu_get_betl qemu_get_be64
#define qemu_put_betls qemu_put_be64s
#define qemu_get_betls qemu_get_be64s
#define qemu_put_sbetl qemu_put_sbe64
#define qemu_get_sbetl qemu_get_sbe64
#define qemu_put_sbetls qemu_put_sbe64s
#define qemu_get_sbetls qemu_get_sbe64s
#else
#define qemu_put_betl qemu_put_be32
#define qemu_get_betl qemu_get_be32
#define qemu_put_betls qemu_put_be32s
#define qemu_get_betls qemu_get_be32s
#define qemu_put_sbetl qemu_put_sbe32
#define qemu_get_sbetl qemu_get_sbe32
#define qemu_put_sbetls qemu_put_sbe32s
#define qemu_get_sbetls qemu_get_sbe32s
#endif
#endif

int64_t qemu_ftell(QEMUFile *f);
int64_t qemu_fseek(QEMUFile *f, int64_t pos, int whence);

typedef void SaveStateHandler(QEMUFile *f, void *opaque);
typedef int SaveLiveStateHandler(QEMUFile *f, int stage, void *opaque);
typedef int LoadStateHandler(QEMUFile *f, void *opaque, int version_id);

int register_savevm(const char *idstr,
                    int instance_id,
                    int version_id,
                    SaveStateHandler *save_state,
                    LoadStateHandler *load_state,
                    void *opaque);

int register_savevm_live(const char *idstr,
                         int instance_id,
                         int version_id,
                         SaveLiveStateHandler *save_live_state,
                         SaveStateHandler *save_state,
                         LoadStateHandler *load_state,
                         void *opaque);

void unregister_savevm(const char *idstr, void *opaque);

typedef void QEMUResetHandler(void *opaque);

void qemu_register_reset(QEMUResetHandler *func, void *opaque);
void qemu_unregister_reset(QEMUResetHandler *func, void *opaque);

/* handler to set the boot_device order for a specific type of QEMUMachine */
/* return 0 if success */
typedef int QEMUBootSetHandler(void *opaque, const char *boot_devices);
void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque);
int qemu_boot_set(const char *boot_devices);

typedef struct VMStateInfo VMStateInfo;
typedef struct VMStateDescription VMStateDescription;

struct VMStateInfo {
    const char *name;
    int (*get)(QEMUFile *f, void *pv, size_t size);
    void (*put)(QEMUFile *f, const void *pv, size_t size);
};

enum VMStateFlags {
    VMS_SINGLE  = 0x001,
    VMS_POINTER = 0x002,
    VMS_ARRAY   = 0x004,
    VMS_STRUCT  = 0x008,
    VMS_VARRAY  = 0x010,  /* Array with size in another field */
    VMS_BUFFER  = 0x020,  /* static sized buffer */
};

typedef struct {
    const char *name;
    size_t offset;
    size_t size;
    int num;
    size_t num_offset;
    const VMStateInfo *info;
    enum VMStateFlags flags;
    const VMStateDescription *vmsd;
    int version_id;
} VMStateField;

struct VMStateDescription {
    const char *name;
    int version_id;
    int minimum_version_id;
    int minimum_version_id_old;
    LoadStateHandler *load_state_old;
    int (*run_after_load)(void *opaque);
    VMStateField *fields;
};

extern const VMStateInfo vmstate_info_int8;
extern const VMStateInfo vmstate_info_int16;
extern const VMStateInfo vmstate_info_int32;
extern const VMStateInfo vmstate_info_int64;

extern const VMStateInfo vmstate_info_int32_equal;
extern const VMStateInfo vmstate_info_int32_le;

extern const VMStateInfo vmstate_info_uint8;
extern const VMStateInfo vmstate_info_uint16;
extern const VMStateInfo vmstate_info_uint32;
extern const VMStateInfo vmstate_info_uint64;

extern const VMStateInfo vmstate_info_timer;
extern const VMStateInfo vmstate_info_ptimer;
extern const VMStateInfo vmstate_info_buffer;

#define type_check_array(t1,t2,n) ((t1(*)[n])0 - (t2*)0)
#define type_check_pointer(t1,t2) ((t1**)0 - (t2*)0)

#define VMSTATE_SINGLE(_field, _state, _version, _info, _type) {     \
    .name       = (stringify(_field)),                               \
    .version_id = (_version),                                        \
    .size       = sizeof(_type),                                     \
    .info       = &(_info),                                          \
    .flags      = VMS_SINGLE,                                        \
    .offset     = offsetof(_state, _field)                           \
            + type_check(_type,typeof_field(_state, _field))         \
}

#define VMSTATE_POINTER(_field, _state, _version, _info, _type) {    \
    .name       = (stringify(_field)),                               \
    .version_id = (_version),                                        \
    .info       = &(_info),                                          \
    .size       = sizeof(_type),                                     \
    .flags      = VMS_SINGLE|VMS_POINTER,                            \
    .offset     = offsetof(_state, _field)                           \
            + type_check(_type,typeof_field(_state, _field))         \
}

#define VMSTATE_ARRAY(_field, _state, _num, _version, _info, _type) {\
    .name       = (stringify(_field)),                               \
    .version_id = (_version),                                        \
    .num        = (_num),                                            \
    .info       = &(_info),                                          \
    .size       = sizeof(_type),                                     \
    .flags      = VMS_ARRAY,                                         \
    .offset     = offsetof(_state, _field)                           \
        + type_check_array(_type,typeof_field(_state, _field),_num)  \
}

#define VMSTATE_VARRAY(_field, _state, _field_num, _version, _info, _type) {\
    .name       = (stringify(_field)),                               \
    .version_id = (_version),                                        \
    .num_offset = offsetof(_state, _field_num)                       \
        + type_check(int32_t,typeof_field(_state, _field_num)),      \
    .info       = &(_info),                                          \
    .size       = sizeof(_type),                                     \
    .flags      = VMS_VARRAY|VMS_POINTER,                            \
    .offset     = offsetof(_state, _field)                           \
        + type_check_pointer(_type,typeof_field(_state, _field))     \
}

#define VMSTATE_STRUCT(_field, _state, _version, _vmsd, _type) {     \
    .name       = (stringify(_field)),                               \
    .version_id = (_version),                                        \
    .vmsd       = &(_vmsd),                                          \
    .size       = sizeof(_type),                                     \
    .flags      = VMS_STRUCT,                                        \
    .offset     = offsetof(_state, _field)                           \
            + type_check(_type,typeof_field(_state, _field))         \
}

#define VMSTATE_STRUCT_ARRAY(_field, _state, _num, _version, _vmsd, _type) { \
    .name       = (stringify(_field)),                               \
    .num        = (_num),                                            \
    .version_id = (_version),                                        \
    .vmsd       = &(_vmsd),                                          \
    .size       = sizeof(_type),                                     \
    .flags      = VMS_STRUCT|VMS_ARRAY,                              \
    .offset     = offsetof(_state, _field)                           \
        + type_check_array(_type,typeof_field(_state, _field),_num)  \
}

#define VMSTATE_STATIC_BUFFER(_field, _state, _version) {            \
    .name       = (stringify(_field)),                               \
    .version_id = (_version),                                        \
    .size       = sizeof(typeof_field(_state,_field)),               \
    .info       = &vmstate_info_buffer,                              \
    .flags      = VMS_BUFFER,                                        \
    .offset     = offsetof(_state, _field)                           \
        + type_check_array(uint8_t,typeof_field(_state, _field),sizeof(typeof_field(_state,_field))) \
}

extern const VMStateDescription vmstate_pci_device;

#define VMSTATE_PCI_DEVICE(_field, _state) {                         \
    .name       = (stringify(_field)),                               \
    .size       = sizeof(PCIDevice),                                 \
    .vmsd       = &vmstate_pci_device,                               \
    .flags      = VMS_STRUCT,                                        \
    .offset     = offsetof(_state, _field)                           \
            + type_check(PCIDevice,typeof_field(_state, _field))     \
}

/* _f : field name
   _f_n : num of elements field_name
   _n : num of elements
   _s : struct state name
   _v : version
*/

#define VMSTATE_INT8_V(_f, _s, _v)                                    \
    VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int8, int8_t)
#define VMSTATE_INT16_V(_f, _s, _v)                                   \
    VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int16, int16_t)
#define VMSTATE_INT32_V(_f, _s, _v)                                   \
    VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int32, int32_t)
#define VMSTATE_INT64_V(_f, _s, _v)                                   \
    VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int64, int64_t)

#define VMSTATE_UINT8_V(_f, _s, _v)                                   \
    VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint8, uint8_t)
#define VMSTATE_UINT16_V(_f, _s, _v)                                  \
    VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint16, uint16_t)
#define VMSTATE_UINT32_V(_f, _s, _v)                                  \
    VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint32, uint32_t)
#define VMSTATE_UINT64_V(_f, _s, _v)                                  \
    VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint64, uint64_t)

#define VMSTATE_INT8(_f, _s)                                          \
    VMSTATE_INT8_V(_f, _s, 0)
#define VMSTATE_INT16(_f, _s)                                         \
    VMSTATE_INT16_V(_f, _s, 0)
#define VMSTATE_INT32(_f, _s)                                         \
    VMSTATE_INT32_V(_f, _s, 0)
#define VMSTATE_INT64(_f, _s)                                         \
    VMSTATE_INT64_V(_f, _s, 0)

#define VMSTATE_UINT8(_f, _s)                                         \
    VMSTATE_UINT8_V(_f, _s, 0)
#define VMSTATE_UINT16(_f, _s)                                        \
    VMSTATE_UINT16_V(_f, _s, 0)
#define VMSTATE_UINT32(_f, _s)                                        \
    VMSTATE_UINT32_V(_f, _s, 0)
#define VMSTATE_UINT64(_f, _s)                                        \
    VMSTATE_UINT64_V(_f, _s, 0)

#define VMSTATE_INT32_EQUAL(_f, _s)                                   \
    VMSTATE_SINGLE(_f, _s, 0, vmstate_info_int32_equal, int32_t)

#define VMSTATE_INT32_LE(_f, _s)                                   \
    VMSTATE_SINGLE(_f, _s, 0, vmstate_info_int32_le, int32_t)

#define VMSTATE_TIMER_V(_f, _s, _v)                                   \
    VMSTATE_POINTER(_f, _s, _v, vmstate_info_timer, QEMUTimer *)

#define VMSTATE_TIMER(_f, _s)                                         \
    VMSTATE_TIMER_V(_f, _s, 0)

#define VMSTATE_PTIMER_V(_f, _s, _v)                                  \
    VMSTATE_POINTER(_f, _s, _v, vmstate_info_ptimer, ptimer_state *)

#define VMSTATE_PTIMER(_f, _s)                                        \
    VMSTATE_PTIMER_V(_f, _s, 0)

#define VMSTATE_UINT32_ARRAY_V(_f, _s, _n, _v)                        \
    VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint32, uint32_t)

#define VMSTATE_UINT32_ARRAY(_f, _s, _n)                              \
    VMSTATE_UINT32_ARRAY_V(_f, _s, _n, 0)

#define VMSTATE_INT32_ARRAY_V(_f, _s, _n, _v)                         \
    VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int32, int32_t)

#define VMSTATE_INT32_ARRAY(_f, _s, _n)                               \
    VMSTATE_INT32_ARRAY_V(_f, _s, _n, 0)

#define VMSTATE_INT32_VARRAY_V(_f, _s, _f_n, _v)                      \
    VMSTATE_VARRAY(_f, _s, _f_n, _v, vmstate_info_int32, int32_t)

#define VMSTATE_INT32_VARRAY(_f, _s, _f_n)                            \
    VMSTATE_INT32_VARRAY_V(_f, _s, _f_n, 0)

#define VMSTATE_BUFFER_V(_f, _s, _v)                                  \
    VMSTATE_STATIC_BUFFER(_f, _s, _v)

#define VMSTATE_BUFFER(_f, _s)                                        \
    VMSTATE_STATIC_BUFFER(_f, _s, 0)

#define VMSTATE_END_OF_LIST()                                         \
    {}

extern int vmstate_load_state(QEMUFile *f, const VMStateDescription *vmsd,
                              void *opaque, int version_id);
extern void vmstate_save_state(QEMUFile *f, const VMStateDescription *vmsd,
                               const void *opaque);
extern int vmstate_register(int instance_id, const VMStateDescription *vmsd,
                            void *base);
void vmstate_unregister(const VMStateDescription *vmsd, void *opaque);
#endif