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1
/*
2
 * QEMU monitor
3
 *
4
 * Copyright (c) 2003-2004 Fabrice Bellard
5
 *
6
 * Permission is hereby granted, free of charge, to any person obtaining a copy
7
 * of this software and associated documentation files (the "Software"), to deal
8
 * in the Software without restriction, including without limitation the rights
9
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10
 * copies of the Software, and to permit persons to whom the Software is
11
 * furnished to do so, subject to the following conditions:
12
 *
13
 * The above copyright notice and this permission notice shall be included in
14
 * all copies or substantial portions of the Software.
15
 *
16
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22
 * THE SOFTWARE.
23
 */
24
#include <dirent.h>
25
#include "hw/hw.h"
26
#include "hw/qdev.h"
27
#include "hw/usb.h"
28
#include "hw/pcmcia.h"
29
#include "hw/pc.h"
30
#include "hw/pci.h"
31
#include "hw/watchdog.h"
32
#include "hw/loader.h"
33
#include "gdbstub.h"
34
#include "net.h"
35
#include "net/slirp.h"
36
#include "qemu-char.h"
37
#include "sysemu.h"
38
#include "monitor.h"
39
#include "readline.h"
40
#include "console.h"
41
#include "block.h"
42
#include "audio/audio.h"
43
#include "disas.h"
44
#include "balloon.h"
45
#include "qemu-timer.h"
46
#include "migration.h"
47
#include "kvm.h"
48
#include "acl.h"
49
#include "qint.h"
50
#include "qlist.h"
51
#include "qdict.h"
52
#include "qbool.h"
53
#include "qstring.h"
54
#include "qerror.h"
55
#include "qjson.h"
56
#include "json-streamer.h"
57
#include "json-parser.h"
58
#include "osdep.h"
59

    
60
//#define DEBUG
61
//#define DEBUG_COMPLETION
62

    
63
/*
64
 * Supported types:
65
 *
66
 * 'F'          filename
67
 * 'B'          block device name
68
 * 's'          string (accept optional quote)
69
 * 'i'          32 bit integer
70
 * 'l'          target long (32 or 64 bit)
71
 * '/'          optional gdb-like print format (like "/10x")
72
 *
73
 * '?'          optional type (for all types, except '/')
74
 * '.'          other form of optional type (for 'i' and 'l')
75
 * '-'          optional parameter (eg. '-f')
76
 *
77
 */
78

    
79
typedef struct MonitorCompletionData MonitorCompletionData;
80
struct MonitorCompletionData {
81
    Monitor *mon;
82
    void (*user_print)(Monitor *mon, const QObject *data);
83
};
84

    
85
typedef struct mon_cmd_t {
86
    const char *name;
87
    const char *args_type;
88
    const char *params;
89
    const char *help;
90
    void (*user_print)(Monitor *mon, const QObject *data);
91
    union {
92
        void (*info)(Monitor *mon);
93
        void (*info_new)(Monitor *mon, QObject **ret_data);
94
        int  (*info_async)(Monitor *mon, MonitorCompletion *cb, void *opaque);
95
        void (*cmd)(Monitor *mon, const QDict *qdict);
96
        void (*cmd_new)(Monitor *mon, const QDict *params, QObject **ret_data);
97
        int  (*cmd_async)(Monitor *mon, const QDict *params,
98
                          MonitorCompletion *cb, void *opaque);
99
    } mhandler;
100
    int async;
101
} mon_cmd_t;
102

    
103
/* file descriptors passed via SCM_RIGHTS */
104
typedef struct mon_fd_t mon_fd_t;
105
struct mon_fd_t {
106
    char *name;
107
    int fd;
108
    QLIST_ENTRY(mon_fd_t) next;
109
};
110

    
111
typedef struct MonitorControl {
112
    QObject *id;
113
    int print_enabled;
114
    JSONMessageParser parser;
115
} MonitorControl;
116

    
117
struct Monitor {
118
    CharDriverState *chr;
119
    int mux_out;
120
    int reset_seen;
121
    int flags;
122
    int suspend_cnt;
123
    uint8_t outbuf[1024];
124
    int outbuf_index;
125
    ReadLineState *rs;
126
    MonitorControl *mc;
127
    CPUState *mon_cpu;
128
    BlockDriverCompletionFunc *password_completion_cb;
129
    void *password_opaque;
130
    QError *error;
131
    QLIST_HEAD(,mon_fd_t) fds;
132
    QLIST_ENTRY(Monitor) entry;
133
};
134

    
135
static QLIST_HEAD(mon_list, Monitor) mon_list;
136

    
137
static const mon_cmd_t mon_cmds[];
138
static const mon_cmd_t info_cmds[];
139

    
140
Monitor *cur_mon = NULL;
141

    
142
static void monitor_command_cb(Monitor *mon, const char *cmdline,
143
                               void *opaque);
144

    
145
/* Return true if in control mode, false otherwise */
146
static inline int monitor_ctrl_mode(const Monitor *mon)
147
{
148
    return (mon->flags & MONITOR_USE_CONTROL);
149
}
150

    
151
static void monitor_read_command(Monitor *mon, int show_prompt)
152
{
153
    if (!mon->rs)
154
        return;
155

    
156
    readline_start(mon->rs, "(qemu) ", 0, monitor_command_cb, NULL);
157
    if (show_prompt)
158
        readline_show_prompt(mon->rs);
159
}
160

    
161
static int monitor_read_password(Monitor *mon, ReadLineFunc *readline_func,
162
                                 void *opaque)
163
{
164
    if (monitor_ctrl_mode(mon)) {
165
        qemu_error_new(QERR_MISSING_PARAMETER, "password");
166
        return -EINVAL;
167
    } else if (mon->rs) {
168
        readline_start(mon->rs, "Password: ", 1, readline_func, opaque);
169
        /* prompt is printed on return from the command handler */
170
        return 0;
171
    } else {
172
        monitor_printf(mon, "terminal does not support password prompting\n");
173
        return -ENOTTY;
174
    }
175
}
176

    
177
void monitor_flush(Monitor *mon)
178
{
179
    if (mon && mon->outbuf_index != 0 && !mon->mux_out) {
180
        qemu_chr_write(mon->chr, mon->outbuf, mon->outbuf_index);
181
        mon->outbuf_index = 0;
182
    }
183
}
184

    
185
/* flush at every end of line or if the buffer is full */
186
static void monitor_puts(Monitor *mon, const char *str)
187
{
188
    char c;
189

    
190
    for(;;) {
191
        c = *str++;
192
        if (c == '\0')
193
            break;
194
        if (c == '\n')
195
            mon->outbuf[mon->outbuf_index++] = '\r';
196
        mon->outbuf[mon->outbuf_index++] = c;
197
        if (mon->outbuf_index >= (sizeof(mon->outbuf) - 1)
198
            || c == '\n')
199
            monitor_flush(mon);
200
    }
201
}
202

    
203
void monitor_vprintf(Monitor *mon, const char *fmt, va_list ap)
204
{
205
    if (!mon)
206
        return;
207

    
208
    if (mon->mc && !mon->mc->print_enabled) {
209
        qemu_error_new(QERR_UNDEFINED_ERROR);
210
    } else {
211
        char buf[4096];
212
        vsnprintf(buf, sizeof(buf), fmt, ap);
213
        monitor_puts(mon, buf);
214
    }
215
}
216

    
217
void monitor_printf(Monitor *mon, const char *fmt, ...)
218
{
219
    va_list ap;
220
    va_start(ap, fmt);
221
    monitor_vprintf(mon, fmt, ap);
222
    va_end(ap);
223
}
224

    
225
void monitor_print_filename(Monitor *mon, const char *filename)
226
{
227
    int i;
228

    
229
    for (i = 0; filename[i]; i++) {
230
        switch (filename[i]) {
231
        case ' ':
232
        case '"':
233
        case '\\':
234
            monitor_printf(mon, "\\%c", filename[i]);
235
            break;
236
        case '\t':
237
            monitor_printf(mon, "\\t");
238
            break;
239
        case '\r':
240
            monitor_printf(mon, "\\r");
241
            break;
242
        case '\n':
243
            monitor_printf(mon, "\\n");
244
            break;
245
        default:
246
            monitor_printf(mon, "%c", filename[i]);
247
            break;
248
        }
249
    }
250
}
251

    
252
static int monitor_fprintf(FILE *stream, const char *fmt, ...)
253
{
254
    va_list ap;
255
    va_start(ap, fmt);
256
    monitor_vprintf((Monitor *)stream, fmt, ap);
257
    va_end(ap);
258
    return 0;
259
}
260

    
261
static void monitor_user_noop(Monitor *mon, const QObject *data) { }
262

    
263
static inline int monitor_handler_ported(const mon_cmd_t *cmd)
264
{
265
    return cmd->user_print != NULL;
266
}
267

    
268
static inline bool monitor_handler_is_async(const mon_cmd_t *cmd)
269
{
270
    return cmd->async != 0;
271
}
272

    
273
static inline int monitor_has_error(const Monitor *mon)
274
{
275
    return mon->error != NULL;
276
}
277

    
278
static void monitor_json_emitter(Monitor *mon, const QObject *data)
279
{
280
    QString *json;
281

    
282
    json = qobject_to_json(data);
283
    assert(json != NULL);
284

    
285
    mon->mc->print_enabled = 1;
286
    monitor_printf(mon, "%s\n", qstring_get_str(json));
287
    mon->mc->print_enabled = 0;
288

    
289
    QDECREF(json);
290
}
291

    
292
static void monitor_protocol_emitter(Monitor *mon, QObject *data)
293
{
294
    QDict *qmp;
295

    
296
    qmp = qdict_new();
297

    
298
    if (!monitor_has_error(mon)) {
299
        /* success response */
300
        if (data) {
301
            qobject_incref(data);
302
            qdict_put_obj(qmp, "return", data);
303
        } else {
304
            /* return an empty QDict by default */
305
            qdict_put(qmp, "return", qdict_new());
306
        }
307
    } else {
308
        /* error response */
309
        qdict_put(mon->error->error, "desc", qerror_human(mon->error));
310
        qdict_put(qmp, "error", mon->error->error);
311
        QINCREF(mon->error->error);
312
        QDECREF(mon->error);
313
        mon->error = NULL;
314
    }
315

    
316
    if (mon->mc->id) {
317
        qdict_put_obj(qmp, "id", mon->mc->id);
318
        mon->mc->id = NULL;
319
    }
320

    
321
    monitor_json_emitter(mon, QOBJECT(qmp));
322
    QDECREF(qmp);
323
}
324

    
325
static void timestamp_put(QDict *qdict)
326
{
327
    int err;
328
    QObject *obj;
329
    qemu_timeval tv;
330

    
331
    err = qemu_gettimeofday(&tv);
332
    if (err < 0)
333
        return;
334

    
335
    obj = qobject_from_jsonf("{ 'seconds': %" PRId64 ", "
336
                                "'microseconds': %" PRId64 " }",
337
                                (int64_t) tv.tv_sec, (int64_t) tv.tv_usec);
338
    assert(obj != NULL);
339

    
340
    qdict_put_obj(qdict, "timestamp", obj);
341
}
342

    
343
/**
344
 * monitor_protocol_event(): Generate a Monitor event
345
 *
346
 * Event-specific data can be emitted through the (optional) 'data' parameter.
347
 */
348
void monitor_protocol_event(MonitorEvent event, QObject *data)
349
{
350
    QDict *qmp;
351
    const char *event_name;
352
    Monitor *mon;
353

    
354
    assert(event < QEVENT_MAX);
355

    
356
    switch (event) {
357
        case QEVENT_DEBUG:
358
            event_name = "DEBUG";
359
            break;
360
        case QEVENT_SHUTDOWN:
361
            event_name = "SHUTDOWN";
362
            break;
363
        case QEVENT_RESET:
364
            event_name = "RESET";
365
            break;
366
        case QEVENT_POWERDOWN:
367
            event_name = "POWERDOWN";
368
            break;
369
        case QEVENT_STOP:
370
            event_name = "STOP";
371
            break;
372
        case QEVENT_VNC_CONNECTED:
373
            event_name = "VNC_CONNECTED";
374
            break;
375
        case QEVENT_VNC_INITIALIZED:
376
            event_name = "VNC_INITIALIZED";
377
            break;
378
        case QEVENT_VNC_DISCONNECTED:
379
            event_name = "VNC_DISCONNECTED";
380
            break;
381
        default:
382
            abort();
383
            break;
384
    }
385

    
386
    qmp = qdict_new();
387
    timestamp_put(qmp);
388
    qdict_put(qmp, "event", qstring_from_str(event_name));
389
    if (data) {
390
        qobject_incref(data);
391
        qdict_put_obj(qmp, "data", data);
392
    }
393

    
394
    QLIST_FOREACH(mon, &mon_list, entry) {
395
        if (monitor_ctrl_mode(mon)) {
396
            monitor_json_emitter(mon, QOBJECT(qmp));
397
        }
398
    }
399
    QDECREF(qmp);
400
}
401

    
402
static int compare_cmd(const char *name, const char *list)
403
{
404
    const char *p, *pstart;
405
    int len;
406
    len = strlen(name);
407
    p = list;
408
    for(;;) {
409
        pstart = p;
410
        p = strchr(p, '|');
411
        if (!p)
412
            p = pstart + strlen(pstart);
413
        if ((p - pstart) == len && !memcmp(pstart, name, len))
414
            return 1;
415
        if (*p == '\0')
416
            break;
417
        p++;
418
    }
419
    return 0;
420
}
421

    
422
static void help_cmd_dump(Monitor *mon, const mon_cmd_t *cmds,
423
                          const char *prefix, const char *name)
424
{
425
    const mon_cmd_t *cmd;
426

    
427
    for(cmd = cmds; cmd->name != NULL; cmd++) {
428
        if (!name || !strcmp(name, cmd->name))
429
            monitor_printf(mon, "%s%s %s -- %s\n", prefix, cmd->name,
430
                           cmd->params, cmd->help);
431
    }
432
}
433

    
434
static void help_cmd(Monitor *mon, const char *name)
435
{
436
    if (name && !strcmp(name, "info")) {
437
        help_cmd_dump(mon, info_cmds, "info ", NULL);
438
    } else {
439
        help_cmd_dump(mon, mon_cmds, "", name);
440
        if (name && !strcmp(name, "log")) {
441
            const CPULogItem *item;
442
            monitor_printf(mon, "Log items (comma separated):\n");
443
            monitor_printf(mon, "%-10s %s\n", "none", "remove all logs");
444
            for(item = cpu_log_items; item->mask != 0; item++) {
445
                monitor_printf(mon, "%-10s %s\n", item->name, item->help);
446
            }
447
        }
448
    }
449
}
450

    
451
static void do_help_cmd(Monitor *mon, const QDict *qdict)
452
{
453
    help_cmd(mon, qdict_get_try_str(qdict, "name"));
454
}
455

    
456
static void do_commit(Monitor *mon, const QDict *qdict)
457
{
458
    int all_devices;
459
    DriveInfo *dinfo;
460
    const char *device = qdict_get_str(qdict, "device");
461

    
462
    all_devices = !strcmp(device, "all");
463
    QTAILQ_FOREACH(dinfo, &drives, next) {
464
        if (!all_devices)
465
            if (strcmp(bdrv_get_device_name(dinfo->bdrv), device))
466
                continue;
467
        bdrv_commit(dinfo->bdrv);
468
    }
469
}
470

    
471
static void user_monitor_complete(void *opaque, QObject *ret_data)
472
{
473
    MonitorCompletionData *data = (MonitorCompletionData *)opaque; 
474

    
475
    if (ret_data) {
476
        data->user_print(data->mon, ret_data);
477
    }
478
    monitor_resume(data->mon);
479
    qemu_free(data);
480
}
481

    
482
static void qmp_monitor_complete(void *opaque, QObject *ret_data)
483
{
484
    monitor_protocol_emitter(opaque, ret_data);
485
}
486

    
487
static void qmp_async_cmd_handler(Monitor *mon, const mon_cmd_t *cmd,
488
                                  const QDict *params)
489
{
490
    cmd->mhandler.cmd_async(mon, params, qmp_monitor_complete, mon);
491
}
492

    
493
static void qmp_async_info_handler(Monitor *mon, const mon_cmd_t *cmd)
494
{
495
    cmd->mhandler.info_async(mon, qmp_monitor_complete, mon);
496
}
497

    
498
static void user_async_cmd_handler(Monitor *mon, const mon_cmd_t *cmd,
499
                                   const QDict *params)
500
{
501
    int ret;
502

    
503
    MonitorCompletionData *cb_data = qemu_malloc(sizeof(*cb_data));
504
    cb_data->mon = mon;
505
    cb_data->user_print = cmd->user_print;
506
    monitor_suspend(mon);
507
    ret = cmd->mhandler.cmd_async(mon, params,
508
                                  user_monitor_complete, cb_data);
509
    if (ret < 0) {
510
        monitor_resume(mon);
511
        qemu_free(cb_data);
512
    }
513
}
514

    
515
static void user_async_info_handler(Monitor *mon, const mon_cmd_t *cmd)
516
{
517
    int ret;
518

    
519
    MonitorCompletionData *cb_data = qemu_malloc(sizeof(*cb_data));
520
    cb_data->mon = mon;
521
    cb_data->user_print = cmd->user_print;
522
    monitor_suspend(mon);
523
    ret = cmd->mhandler.info_async(mon, user_monitor_complete, cb_data);
524
    if (ret < 0) {
525
        monitor_resume(mon);
526
        qemu_free(cb_data);
527
    }
528
}
529

    
530
static void do_info(Monitor *mon, const QDict *qdict, QObject **ret_data)
531
{
532
    const mon_cmd_t *cmd;
533
    const char *item = qdict_get_try_str(qdict, "item");
534

    
535
    if (!item) {
536
        assert(monitor_ctrl_mode(mon) == 0);
537
        goto help;
538
    }
539

    
540
    for (cmd = info_cmds; cmd->name != NULL; cmd++) {
541
        if (compare_cmd(item, cmd->name))
542
            break;
543
    }
544

    
545
    if (cmd->name == NULL) {
546
        if (monitor_ctrl_mode(mon)) {
547
            qemu_error_new(QERR_COMMAND_NOT_FOUND, item);
548
            return;
549
        }
550
        goto help;
551
    }
552

    
553
    if (monitor_handler_is_async(cmd)) {
554
        if (monitor_ctrl_mode(mon)) {
555
            qmp_async_info_handler(mon, cmd);
556
        } else {
557
            user_async_info_handler(mon, cmd);
558
        }
559
        /*
560
         * Indicate that this command is asynchronous and will not return any
561
         * data (not even empty).  Instead, the data will be returned via a
562
         * completion callback.
563
         */
564
        *ret_data = qobject_from_jsonf("{ '__mon_async': 'return' }");
565
    } else if (monitor_handler_ported(cmd)) {
566
        cmd->mhandler.info_new(mon, ret_data);
567

    
568
        if (!monitor_ctrl_mode(mon)) {
569
            /*
570
             * User Protocol function is called here, Monitor Protocol is
571
             * handled by monitor_call_handler()
572
             */
573
            if (*ret_data)
574
                cmd->user_print(mon, *ret_data);
575
        }
576
    } else {
577
        if (monitor_ctrl_mode(mon)) {
578
            /* handler not converted yet */
579
            qemu_error_new(QERR_COMMAND_NOT_FOUND, item);
580
        } else {
581
            cmd->mhandler.info(mon);
582
        }
583
    }
584

    
585
    return;
586

    
587
help:
588
    help_cmd(mon, "info");
589
}
590

    
591
static void do_info_version_print(Monitor *mon, const QObject *data)
592
{
593
    QDict *qdict;
594

    
595
    qdict = qobject_to_qdict(data);
596

    
597
    monitor_printf(mon, "%s%s\n", qdict_get_str(qdict, "qemu"),
598
                                  qdict_get_str(qdict, "package"));
599
}
600

    
601
/**
602
 * do_info_version(): Show QEMU version
603
 *
604
 * Return a QDict with the following information:
605
 *
606
 * - "qemu": QEMU's version
607
 * - "package": package's version
608
 *
609
 * Example:
610
 *
611
 * { "qemu": "0.11.50", "package": "" }
612
 */
613
static void do_info_version(Monitor *mon, QObject **ret_data)
614
{
615
    *ret_data = qobject_from_jsonf("{ 'qemu': %s, 'package': %s }",
616
                                   QEMU_VERSION, QEMU_PKGVERSION);
617
}
618

    
619
static void do_info_name_print(Monitor *mon, const QObject *data)
620
{
621
    QDict *qdict;
622

    
623
    qdict = qobject_to_qdict(data);
624
    if (qdict_size(qdict) == 0) {
625
        return;
626
    }
627

    
628
    monitor_printf(mon, "%s\n", qdict_get_str(qdict, "name"));
629
}
630

    
631
/**
632
 * do_info_name(): Show VM name
633
 *
634
 * Return a QDict with the following information:
635
 *
636
 * - "name": VM's name (optional)
637
 *
638
 * Example:
639
 *
640
 * { "name": "qemu-name" }
641
 */
642
static void do_info_name(Monitor *mon, QObject **ret_data)
643
{
644
    *ret_data = qemu_name ? qobject_from_jsonf("{'name': %s }", qemu_name) :
645
                            qobject_from_jsonf("{}");
646
}
647

    
648
static QObject *get_cmd_dict(const char *name)
649
{
650
    const char *p;
651

    
652
    /* Remove '|' from some commands */
653
    p = strchr(name, '|');
654
    if (p) {
655
        p++;
656
    } else {
657
        p = name;
658
    }
659

    
660
    return qobject_from_jsonf("{ 'name': %s }", p);
661
}
662

    
663
/**
664
 * do_info_commands(): List QMP available commands
665
 *
666
 * Each command is represented by a QDict, the returned QObject is a QList
667
 * of all commands.
668
 *
669
 * The QDict contains:
670
 *
671
 * - "name": command's name
672
 *
673
 * Example:
674
 *
675
 * { [ { "name": "query-balloon" }, { "name": "system_powerdown" } ] }
676
 */
677
static void do_info_commands(Monitor *mon, QObject **ret_data)
678
{
679
    QList *cmd_list;
680
    const mon_cmd_t *cmd;
681

    
682
    cmd_list = qlist_new();
683

    
684
    for (cmd = mon_cmds; cmd->name != NULL; cmd++) {
685
        if (monitor_handler_ported(cmd) && !compare_cmd(cmd->name, "info")) {
686
            qlist_append_obj(cmd_list, get_cmd_dict(cmd->name));
687
        }
688
    }
689

    
690
    for (cmd = info_cmds; cmd->name != NULL; cmd++) {
691
        if (monitor_handler_ported(cmd)) {
692
            char buf[128];
693
            snprintf(buf, sizeof(buf), "query-%s", cmd->name);
694
            qlist_append_obj(cmd_list, get_cmd_dict(buf));
695
        }
696
    }
697

    
698
    *ret_data = QOBJECT(cmd_list);
699
}
700

    
701
#if defined(TARGET_I386)
702
static void do_info_hpet_print(Monitor *mon, const QObject *data)
703
{
704
    monitor_printf(mon, "HPET is %s by QEMU\n",
705
                   qdict_get_bool(qobject_to_qdict(data), "enabled") ?
706
                   "enabled" : "disabled");
707
}
708

    
709
/**
710
 * do_info_hpet(): Show HPET state
711
 *
712
 * Return a QDict with the following information:
713
 *
714
 * - "enabled": true if hpet if enabled, false otherwise
715
 *
716
 * Example:
717
 *
718
 * { "enabled": true }
719
 */
720
static void do_info_hpet(Monitor *mon, QObject **ret_data)
721
{
722
    *ret_data = qobject_from_jsonf("{ 'enabled': %i }", !no_hpet);
723
}
724
#endif
725

    
726
static void do_info_uuid_print(Monitor *mon, const QObject *data)
727
{
728
    monitor_printf(mon, "%s\n", qdict_get_str(qobject_to_qdict(data), "UUID"));
729
}
730

    
731
/**
732
 * do_info_uuid(): Show VM UUID
733
 *
734
 * Return a QDict with the following information:
735
 *
736
 * - "UUID": Universally Unique Identifier
737
 *
738
 * Example:
739
 *
740
 * { "UUID": "550e8400-e29b-41d4-a716-446655440000" }
741
 */
742
static void do_info_uuid(Monitor *mon, QObject **ret_data)
743
{
744
    char uuid[64];
745

    
746
    snprintf(uuid, sizeof(uuid), UUID_FMT, qemu_uuid[0], qemu_uuid[1],
747
                   qemu_uuid[2], qemu_uuid[3], qemu_uuid[4], qemu_uuid[5],
748
                   qemu_uuid[6], qemu_uuid[7], qemu_uuid[8], qemu_uuid[9],
749
                   qemu_uuid[10], qemu_uuid[11], qemu_uuid[12], qemu_uuid[13],
750
                   qemu_uuid[14], qemu_uuid[15]);
751
    *ret_data = qobject_from_jsonf("{ 'UUID': %s }", uuid);
752
}
753

    
754
/* get the current CPU defined by the user */
755
static int mon_set_cpu(int cpu_index)
756
{
757
    CPUState *env;
758

    
759
    for(env = first_cpu; env != NULL; env = env->next_cpu) {
760
        if (env->cpu_index == cpu_index) {
761
            cur_mon->mon_cpu = env;
762
            return 0;
763
        }
764
    }
765
    return -1;
766
}
767

    
768
static CPUState *mon_get_cpu(void)
769
{
770
    if (!cur_mon->mon_cpu) {
771
        mon_set_cpu(0);
772
    }
773
    cpu_synchronize_state(cur_mon->mon_cpu);
774
    return cur_mon->mon_cpu;
775
}
776

    
777
static void do_info_registers(Monitor *mon)
778
{
779
    CPUState *env;
780
    env = mon_get_cpu();
781
#ifdef TARGET_I386
782
    cpu_dump_state(env, (FILE *)mon, monitor_fprintf,
783
                   X86_DUMP_FPU);
784
#else
785
    cpu_dump_state(env, (FILE *)mon, monitor_fprintf,
786
                   0);
787
#endif
788
}
789

    
790
static void print_cpu_iter(QObject *obj, void *opaque)
791
{
792
    QDict *cpu;
793
    int active = ' ';
794
    Monitor *mon = opaque;
795

    
796
    assert(qobject_type(obj) == QTYPE_QDICT);
797
    cpu = qobject_to_qdict(obj);
798

    
799
    if (qdict_get_bool(cpu, "current")) {
800
        active = '*';
801
    }
802

    
803
    monitor_printf(mon, "%c CPU #%d: ", active, (int)qdict_get_int(cpu, "CPU"));
804

    
805
#if defined(TARGET_I386)
806
    monitor_printf(mon, "pc=0x" TARGET_FMT_lx,
807
                   (target_ulong) qdict_get_int(cpu, "pc"));
808
#elif defined(TARGET_PPC)
809
    monitor_printf(mon, "nip=0x" TARGET_FMT_lx,
810
                   (target_long) qdict_get_int(cpu, "nip"));
811
#elif defined(TARGET_SPARC)
812
    monitor_printf(mon, "pc=0x " TARGET_FMT_lx,
813
                   (target_long) qdict_get_int(cpu, "pc"));
814
    monitor_printf(mon, "npc=0x" TARGET_FMT_lx,
815
                   (target_long) qdict_get_int(cpu, "npc"));
816
#elif defined(TARGET_MIPS)
817
    monitor_printf(mon, "PC=0x" TARGET_FMT_lx,
818
                   (target_long) qdict_get_int(cpu, "PC"));
819
#endif
820

    
821
    if (qdict_get_bool(cpu, "halted")) {
822
        monitor_printf(mon, " (halted)");
823
    }
824

    
825
    monitor_printf(mon, "\n");
826
}
827

    
828
static void monitor_print_cpus(Monitor *mon, const QObject *data)
829
{
830
    QList *cpu_list;
831

    
832
    assert(qobject_type(data) == QTYPE_QLIST);
833
    cpu_list = qobject_to_qlist(data);
834
    qlist_iter(cpu_list, print_cpu_iter, mon);
835
}
836

    
837
/**
838
 * do_info_cpus(): Show CPU information
839
 *
840
 * Return a QList. Each CPU is represented by a QDict, which contains:
841
 *
842
 * - "cpu": CPU index
843
 * - "current": true if this is the current CPU, false otherwise
844
 * - "halted": true if the cpu is halted, false otherwise
845
 * - Current program counter. The key's name depends on the architecture:
846
 *      "pc": i386/x86)64
847
 *      "nip": PPC
848
 *      "pc" and "npc": sparc
849
 *      "PC": mips
850
 *
851
 * Example:
852
 *
853
 * [ { "CPU": 0, "current": true, "halted": false, "pc": 3227107138 },
854
 *   { "CPU": 1, "current": false, "halted": true, "pc": 7108165 } ]
855
 */
856
static void do_info_cpus(Monitor *mon, QObject **ret_data)
857
{
858
    CPUState *env;
859
    QList *cpu_list;
860

    
861
    cpu_list = qlist_new();
862

    
863
    /* just to set the default cpu if not already done */
864
    mon_get_cpu();
865

    
866
    for(env = first_cpu; env != NULL; env = env->next_cpu) {
867
        QDict *cpu;
868
        QObject *obj;
869

    
870
        cpu_synchronize_state(env);
871

    
872
        obj = qobject_from_jsonf("{ 'CPU': %d, 'current': %i, 'halted': %i }",
873
                                 env->cpu_index, env == mon->mon_cpu,
874
                                 env->halted);
875
        assert(obj != NULL);
876

    
877
        cpu = qobject_to_qdict(obj);
878

    
879
#if defined(TARGET_I386)
880
        qdict_put(cpu, "pc", qint_from_int(env->eip + env->segs[R_CS].base));
881
#elif defined(TARGET_PPC)
882
        qdict_put(cpu, "nip", qint_from_int(env->nip));
883
#elif defined(TARGET_SPARC)
884
        qdict_put(cpu, "pc", qint_from_int(env->pc));
885
        qdict_put(cpu, "npc", qint_from_int(env->npc));
886
#elif defined(TARGET_MIPS)
887
        qdict_put(cpu, "PC", qint_from_int(env->active_tc.PC));
888
#endif
889

    
890
        qlist_append(cpu_list, cpu);
891
    }
892

    
893
    *ret_data = QOBJECT(cpu_list);
894
}
895

    
896
static void do_cpu_set(Monitor *mon, const QDict *qdict, QObject **ret_data)
897
{
898
    int index = qdict_get_int(qdict, "index");
899
    if (mon_set_cpu(index) < 0)
900
        qemu_error_new(QERR_INVALID_CPU_INDEX);
901
}
902

    
903
static void do_info_jit(Monitor *mon)
904
{
905
    dump_exec_info((FILE *)mon, monitor_fprintf);
906
}
907

    
908
static void do_info_history(Monitor *mon)
909
{
910
    int i;
911
    const char *str;
912

    
913
    if (!mon->rs)
914
        return;
915
    i = 0;
916
    for(;;) {
917
        str = readline_get_history(mon->rs, i);
918
        if (!str)
919
            break;
920
        monitor_printf(mon, "%d: '%s'\n", i, str);
921
        i++;
922
    }
923
}
924

    
925
#if defined(TARGET_PPC)
926
/* XXX: not implemented in other targets */
927
static void do_info_cpu_stats(Monitor *mon)
928
{
929
    CPUState *env;
930

    
931
    env = mon_get_cpu();
932
    cpu_dump_statistics(env, (FILE *)mon, &monitor_fprintf, 0);
933
}
934
#endif
935

    
936
/**
937
 * do_quit(): Quit QEMU execution
938
 */
939
static void do_quit(Monitor *mon, const QDict *qdict, QObject **ret_data)
940
{
941
    exit(0);
942
}
943

    
944
static int eject_device(Monitor *mon, BlockDriverState *bs, int force)
945
{
946
    if (bdrv_is_inserted(bs)) {
947
        if (!force) {
948
            if (!bdrv_is_removable(bs)) {
949
                qemu_error_new(QERR_DEVICE_NOT_REMOVABLE,
950
                               bdrv_get_device_name(bs));
951
                return -1;
952
            }
953
            if (bdrv_is_locked(bs)) {
954
                qemu_error_new(QERR_DEVICE_LOCKED, bdrv_get_device_name(bs));
955
                return -1;
956
            }
957
        }
958
        bdrv_close(bs);
959
    }
960
    return 0;
961
}
962

    
963
static void do_eject(Monitor *mon, const QDict *qdict, QObject **ret_data)
964
{
965
    BlockDriverState *bs;
966
    int force = qdict_get_int(qdict, "force");
967
    const char *filename = qdict_get_str(qdict, "device");
968

    
969
    bs = bdrv_find(filename);
970
    if (!bs) {
971
        qemu_error_new(QERR_DEVICE_NOT_FOUND, filename);
972
        return;
973
    }
974
    eject_device(mon, bs, force);
975
}
976

    
977
static void do_block_set_passwd(Monitor *mon, const QDict *qdict,
978
                                QObject **ret_data)
979
{
980
    BlockDriverState *bs;
981

    
982
    bs = bdrv_find(qdict_get_str(qdict, "device"));
983
    if (!bs) {
984
        qemu_error_new(QERR_DEVICE_NOT_FOUND, qdict_get_str(qdict, "device"));
985
        return;
986
    }
987

    
988
    if (bdrv_set_key(bs, qdict_get_str(qdict, "password")) < 0) {
989
        qemu_error_new(QERR_INVALID_PASSWORD);
990
    }
991
}
992

    
993
static void do_change_block(Monitor *mon, const char *device,
994
                            const char *filename, const char *fmt)
995
{
996
    BlockDriverState *bs;
997
    BlockDriver *drv = NULL;
998

    
999
    bs = bdrv_find(device);
1000
    if (!bs) {
1001
        qemu_error_new(QERR_DEVICE_NOT_FOUND, device);
1002
        return;
1003
    }
1004
    if (fmt) {
1005
        drv = bdrv_find_whitelisted_format(fmt);
1006
        if (!drv) {
1007
            qemu_error_new(QERR_INVALID_BLOCK_FORMAT, fmt);
1008
            return;
1009
        }
1010
    }
1011
    if (eject_device(mon, bs, 0) < 0)
1012
        return;
1013
    bdrv_open2(bs, filename, BDRV_O_RDWR, drv);
1014
    monitor_read_bdrv_key_start(mon, bs, NULL, NULL);
1015
}
1016

    
1017
static void change_vnc_password(const char *password)
1018
{
1019
    if (vnc_display_password(NULL, password) < 0)
1020
        qemu_error_new(QERR_SET_PASSWD_FAILED);
1021

    
1022
}
1023

    
1024
static void change_vnc_password_cb(Monitor *mon, const char *password,
1025
                                   void *opaque)
1026
{
1027
    change_vnc_password(password);
1028
    monitor_read_command(mon, 1);
1029
}
1030

    
1031
static void do_change_vnc(Monitor *mon, const char *target, const char *arg)
1032
{
1033
    if (strcmp(target, "passwd") == 0 ||
1034
        strcmp(target, "password") == 0) {
1035
        if (arg) {
1036
            char password[9];
1037
            strncpy(password, arg, sizeof(password));
1038
            password[sizeof(password) - 1] = '\0';
1039
            change_vnc_password(password);
1040
        } else {
1041
            monitor_read_password(mon, change_vnc_password_cb, NULL);
1042
        }
1043
    } else {
1044
        if (vnc_display_open(NULL, target) < 0)
1045
            qemu_error_new(QERR_VNC_SERVER_FAILED, target);
1046
    }
1047
}
1048

    
1049
/**
1050
 * do_change(): Change a removable medium, or VNC configuration
1051
 */
1052
static void do_change(Monitor *mon, const QDict *qdict, QObject **ret_data)
1053
{
1054
    const char *device = qdict_get_str(qdict, "device");
1055
    const char *target = qdict_get_str(qdict, "target");
1056
    const char *arg = qdict_get_try_str(qdict, "arg");
1057
    if (strcmp(device, "vnc") == 0) {
1058
        do_change_vnc(mon, target, arg);
1059
    } else {
1060
        do_change_block(mon, device, target, arg);
1061
    }
1062
}
1063

    
1064
static void do_screen_dump(Monitor *mon, const QDict *qdict)
1065
{
1066
    vga_hw_screen_dump(qdict_get_str(qdict, "filename"));
1067
}
1068

    
1069
static void do_logfile(Monitor *mon, const QDict *qdict)
1070
{
1071
    cpu_set_log_filename(qdict_get_str(qdict, "filename"));
1072
}
1073

    
1074
static void do_log(Monitor *mon, const QDict *qdict)
1075
{
1076
    int mask;
1077
    const char *items = qdict_get_str(qdict, "items");
1078

    
1079
    if (!strcmp(items, "none")) {
1080
        mask = 0;
1081
    } else {
1082
        mask = cpu_str_to_log_mask(items);
1083
        if (!mask) {
1084
            help_cmd(mon, "log");
1085
            return;
1086
        }
1087
    }
1088
    cpu_set_log(mask);
1089
}
1090

    
1091
static void do_singlestep(Monitor *mon, const QDict *qdict)
1092
{
1093
    const char *option = qdict_get_try_str(qdict, "option");
1094
    if (!option || !strcmp(option, "on")) {
1095
        singlestep = 1;
1096
    } else if (!strcmp(option, "off")) {
1097
        singlestep = 0;
1098
    } else {
1099
        monitor_printf(mon, "unexpected option %s\n", option);
1100
    }
1101
}
1102

    
1103
/**
1104
 * do_stop(): Stop VM execution
1105
 */
1106
static void do_stop(Monitor *mon, const QDict *qdict, QObject **ret_data)
1107
{
1108
    vm_stop(EXCP_INTERRUPT);
1109
}
1110

    
1111
static void encrypted_bdrv_it(void *opaque, BlockDriverState *bs);
1112

    
1113
struct bdrv_iterate_context {
1114
    Monitor *mon;
1115
    int err;
1116
};
1117

    
1118
/**
1119
 * do_cont(): Resume emulation.
1120
 */
1121
static void do_cont(Monitor *mon, const QDict *qdict, QObject **ret_data)
1122
{
1123
    struct bdrv_iterate_context context = { mon, 0 };
1124

    
1125
    bdrv_iterate(encrypted_bdrv_it, &context);
1126
    /* only resume the vm if all keys are set and valid */
1127
    if (!context.err)
1128
        vm_start();
1129
}
1130

    
1131
static void bdrv_key_cb(void *opaque, int err)
1132
{
1133
    Monitor *mon = opaque;
1134

    
1135
    /* another key was set successfully, retry to continue */
1136
    if (!err)
1137
        do_cont(mon, NULL, NULL);
1138
}
1139

    
1140
static void encrypted_bdrv_it(void *opaque, BlockDriverState *bs)
1141
{
1142
    struct bdrv_iterate_context *context = opaque;
1143

    
1144
    if (!context->err && bdrv_key_required(bs)) {
1145
        context->err = -EBUSY;
1146
        monitor_read_bdrv_key_start(context->mon, bs, bdrv_key_cb,
1147
                                    context->mon);
1148
    }
1149
}
1150

    
1151
static void do_gdbserver(Monitor *mon, const QDict *qdict)
1152
{
1153
    const char *device = qdict_get_try_str(qdict, "device");
1154
    if (!device)
1155
        device = "tcp::" DEFAULT_GDBSTUB_PORT;
1156
    if (gdbserver_start(device) < 0) {
1157
        monitor_printf(mon, "Could not open gdbserver on device '%s'\n",
1158
                       device);
1159
    } else if (strcmp(device, "none") == 0) {
1160
        monitor_printf(mon, "Disabled gdbserver\n");
1161
    } else {
1162
        monitor_printf(mon, "Waiting for gdb connection on device '%s'\n",
1163
                       device);
1164
    }
1165
}
1166

    
1167
static void do_watchdog_action(Monitor *mon, const QDict *qdict)
1168
{
1169
    const char *action = qdict_get_str(qdict, "action");
1170
    if (select_watchdog_action(action) == -1) {
1171
        monitor_printf(mon, "Unknown watchdog action '%s'\n", action);
1172
    }
1173
}
1174

    
1175
static void monitor_printc(Monitor *mon, int c)
1176
{
1177
    monitor_printf(mon, "'");
1178
    switch(c) {
1179
    case '\'':
1180
        monitor_printf(mon, "\\'");
1181
        break;
1182
    case '\\':
1183
        monitor_printf(mon, "\\\\");
1184
        break;
1185
    case '\n':
1186
        monitor_printf(mon, "\\n");
1187
        break;
1188
    case '\r':
1189
        monitor_printf(mon, "\\r");
1190
        break;
1191
    default:
1192
        if (c >= 32 && c <= 126) {
1193
            monitor_printf(mon, "%c", c);
1194
        } else {
1195
            monitor_printf(mon, "\\x%02x", c);
1196
        }
1197
        break;
1198
    }
1199
    monitor_printf(mon, "'");
1200
}
1201

    
1202
static void memory_dump(Monitor *mon, int count, int format, int wsize,
1203
                        target_phys_addr_t addr, int is_physical)
1204
{
1205
    CPUState *env;
1206
    int l, line_size, i, max_digits, len;
1207
    uint8_t buf[16];
1208
    uint64_t v;
1209

    
1210
    if (format == 'i') {
1211
        int flags;
1212
        flags = 0;
1213
        env = mon_get_cpu();
1214
        if (!is_physical)
1215
            return;
1216
#ifdef TARGET_I386
1217
        if (wsize == 2) {
1218
            flags = 1;
1219
        } else if (wsize == 4) {
1220
            flags = 0;
1221
        } else {
1222
            /* as default we use the current CS size */
1223
            flags = 0;
1224
            if (env) {
1225
#ifdef TARGET_X86_64
1226
                if ((env->efer & MSR_EFER_LMA) &&
1227
                    (env->segs[R_CS].flags & DESC_L_MASK))
1228
                    flags = 2;
1229
                else
1230
#endif
1231
                if (!(env->segs[R_CS].flags & DESC_B_MASK))
1232
                    flags = 1;
1233
            }
1234
        }
1235
#endif
1236
        monitor_disas(mon, env, addr, count, is_physical, flags);
1237
        return;
1238
    }
1239

    
1240
    len = wsize * count;
1241
    if (wsize == 1)
1242
        line_size = 8;
1243
    else
1244
        line_size = 16;
1245
    max_digits = 0;
1246

    
1247
    switch(format) {
1248
    case 'o':
1249
        max_digits = (wsize * 8 + 2) / 3;
1250
        break;
1251
    default:
1252
    case 'x':
1253
        max_digits = (wsize * 8) / 4;
1254
        break;
1255
    case 'u':
1256
    case 'd':
1257
        max_digits = (wsize * 8 * 10 + 32) / 33;
1258
        break;
1259
    case 'c':
1260
        wsize = 1;
1261
        break;
1262
    }
1263

    
1264
    while (len > 0) {
1265
        if (is_physical)
1266
            monitor_printf(mon, TARGET_FMT_plx ":", addr);
1267
        else
1268
            monitor_printf(mon, TARGET_FMT_lx ":", (target_ulong)addr);
1269
        l = len;
1270
        if (l > line_size)
1271
            l = line_size;
1272
        if (is_physical) {
1273
            cpu_physical_memory_rw(addr, buf, l, 0);
1274
        } else {
1275
            env = mon_get_cpu();
1276
            if (cpu_memory_rw_debug(env, addr, buf, l, 0) < 0) {
1277
                monitor_printf(mon, " Cannot access memory\n");
1278
                break;
1279
            }
1280
        }
1281
        i = 0;
1282
        while (i < l) {
1283
            switch(wsize) {
1284
            default:
1285
            case 1:
1286
                v = ldub_raw(buf + i);
1287
                break;
1288
            case 2:
1289
                v = lduw_raw(buf + i);
1290
                break;
1291
            case 4:
1292
                v = (uint32_t)ldl_raw(buf + i);
1293
                break;
1294
            case 8:
1295
                v = ldq_raw(buf + i);
1296
                break;
1297
            }
1298
            monitor_printf(mon, " ");
1299
            switch(format) {
1300
            case 'o':
1301
                monitor_printf(mon, "%#*" PRIo64, max_digits, v);
1302
                break;
1303
            case 'x':
1304
                monitor_printf(mon, "0x%0*" PRIx64, max_digits, v);
1305
                break;
1306
            case 'u':
1307
                monitor_printf(mon, "%*" PRIu64, max_digits, v);
1308
                break;
1309
            case 'd':
1310
                monitor_printf(mon, "%*" PRId64, max_digits, v);
1311
                break;
1312
            case 'c':
1313
                monitor_printc(mon, v);
1314
                break;
1315
            }
1316
            i += wsize;
1317
        }
1318
        monitor_printf(mon, "\n");
1319
        addr += l;
1320
        len -= l;
1321
    }
1322
}
1323

    
1324
static void do_memory_dump(Monitor *mon, const QDict *qdict)
1325
{
1326
    int count = qdict_get_int(qdict, "count");
1327
    int format = qdict_get_int(qdict, "format");
1328
    int size = qdict_get_int(qdict, "size");
1329
    target_long addr = qdict_get_int(qdict, "addr");
1330

    
1331
    memory_dump(mon, count, format, size, addr, 0);
1332
}
1333

    
1334
static void do_physical_memory_dump(Monitor *mon, const QDict *qdict)
1335
{
1336
    int count = qdict_get_int(qdict, "count");
1337
    int format = qdict_get_int(qdict, "format");
1338
    int size = qdict_get_int(qdict, "size");
1339
    target_phys_addr_t addr = qdict_get_int(qdict, "addr");
1340

    
1341
    memory_dump(mon, count, format, size, addr, 1);
1342
}
1343

    
1344
static void do_print(Monitor *mon, const QDict *qdict)
1345
{
1346
    int format = qdict_get_int(qdict, "format");
1347
    target_phys_addr_t val = qdict_get_int(qdict, "val");
1348

    
1349
#if TARGET_PHYS_ADDR_BITS == 32
1350
    switch(format) {
1351
    case 'o':
1352
        monitor_printf(mon, "%#o", val);
1353
        break;
1354
    case 'x':
1355
        monitor_printf(mon, "%#x", val);
1356
        break;
1357
    case 'u':
1358
        monitor_printf(mon, "%u", val);
1359
        break;
1360
    default:
1361
    case 'd':
1362
        monitor_printf(mon, "%d", val);
1363
        break;
1364
    case 'c':
1365
        monitor_printc(mon, val);
1366
        break;
1367
    }
1368
#else
1369
    switch(format) {
1370
    case 'o':
1371
        monitor_printf(mon, "%#" PRIo64, val);
1372
        break;
1373
    case 'x':
1374
        monitor_printf(mon, "%#" PRIx64, val);
1375
        break;
1376
    case 'u':
1377
        monitor_printf(mon, "%" PRIu64, val);
1378
        break;
1379
    default:
1380
    case 'd':
1381
        monitor_printf(mon, "%" PRId64, val);
1382
        break;
1383
    case 'c':
1384
        monitor_printc(mon, val);
1385
        break;
1386
    }
1387
#endif
1388
    monitor_printf(mon, "\n");
1389
}
1390

    
1391
static void do_memory_save(Monitor *mon, const QDict *qdict, QObject **ret_data)
1392
{
1393
    FILE *f;
1394
    uint32_t size = qdict_get_int(qdict, "size");
1395
    const char *filename = qdict_get_str(qdict, "filename");
1396
    target_long addr = qdict_get_int(qdict, "val");
1397
    uint32_t l;
1398
    CPUState *env;
1399
    uint8_t buf[1024];
1400

    
1401
    env = mon_get_cpu();
1402

    
1403
    f = fopen(filename, "wb");
1404
    if (!f) {
1405
        qemu_error_new(QERR_OPEN_FILE_FAILED, filename);
1406
        return;
1407
    }
1408
    while (size != 0) {
1409
        l = sizeof(buf);
1410
        if (l > size)
1411
            l = size;
1412
        cpu_memory_rw_debug(env, addr, buf, l, 0);
1413
        if (fwrite(buf, 1, l, f) != l) {
1414
            monitor_printf(mon, "fwrite() error in do_memory_save\n");
1415
            goto exit;
1416
        }
1417
        addr += l;
1418
        size -= l;
1419
    }
1420
exit:
1421
    fclose(f);
1422
}
1423

    
1424
static void do_physical_memory_save(Monitor *mon, const QDict *qdict,
1425
                                    QObject **ret_data)
1426
{
1427
    FILE *f;
1428
    uint32_t l;
1429
    uint8_t buf[1024];
1430
    uint32_t size = qdict_get_int(qdict, "size");
1431
    const char *filename = qdict_get_str(qdict, "filename");
1432
    target_phys_addr_t addr = qdict_get_int(qdict, "val");
1433

    
1434
    f = fopen(filename, "wb");
1435
    if (!f) {
1436
        qemu_error_new(QERR_OPEN_FILE_FAILED, filename);
1437
        return;
1438
    }
1439
    while (size != 0) {
1440
        l = sizeof(buf);
1441
        if (l > size)
1442
            l = size;
1443
        cpu_physical_memory_rw(addr, buf, l, 0);
1444
        if (fwrite(buf, 1, l, f) != l) {
1445
            monitor_printf(mon, "fwrite() error in do_physical_memory_save\n");
1446
            goto exit;
1447
        }
1448
        fflush(f);
1449
        addr += l;
1450
        size -= l;
1451
    }
1452
exit:
1453
    fclose(f);
1454
}
1455

    
1456
static void do_sum(Monitor *mon, const QDict *qdict)
1457
{
1458
    uint32_t addr;
1459
    uint8_t buf[1];
1460
    uint16_t sum;
1461
    uint32_t start = qdict_get_int(qdict, "start");
1462
    uint32_t size = qdict_get_int(qdict, "size");
1463

    
1464
    sum = 0;
1465
    for(addr = start; addr < (start + size); addr++) {
1466
        cpu_physical_memory_rw(addr, buf, 1, 0);
1467
        /* BSD sum algorithm ('sum' Unix command) */
1468
        sum = (sum >> 1) | (sum << 15);
1469
        sum += buf[0];
1470
    }
1471
    monitor_printf(mon, "%05d\n", sum);
1472
}
1473

    
1474
typedef struct {
1475
    int keycode;
1476
    const char *name;
1477
} KeyDef;
1478

    
1479
static const KeyDef key_defs[] = {
1480
    { 0x2a, "shift" },
1481
    { 0x36, "shift_r" },
1482

    
1483
    { 0x38, "alt" },
1484
    { 0xb8, "alt_r" },
1485
    { 0x64, "altgr" },
1486
    { 0xe4, "altgr_r" },
1487
    { 0x1d, "ctrl" },
1488
    { 0x9d, "ctrl_r" },
1489

    
1490
    { 0xdd, "menu" },
1491

    
1492
    { 0x01, "esc" },
1493

    
1494
    { 0x02, "1" },
1495
    { 0x03, "2" },
1496
    { 0x04, "3" },
1497
    { 0x05, "4" },
1498
    { 0x06, "5" },
1499
    { 0x07, "6" },
1500
    { 0x08, "7" },
1501
    { 0x09, "8" },
1502
    { 0x0a, "9" },
1503
    { 0x0b, "0" },
1504
    { 0x0c, "minus" },
1505
    { 0x0d, "equal" },
1506
    { 0x0e, "backspace" },
1507

    
1508
    { 0x0f, "tab" },
1509
    { 0x10, "q" },
1510
    { 0x11, "w" },
1511
    { 0x12, "e" },
1512
    { 0x13, "r" },
1513
    { 0x14, "t" },
1514
    { 0x15, "y" },
1515
    { 0x16, "u" },
1516
    { 0x17, "i" },
1517
    { 0x18, "o" },
1518
    { 0x19, "p" },
1519

    
1520
    { 0x1c, "ret" },
1521

    
1522
    { 0x1e, "a" },
1523
    { 0x1f, "s" },
1524
    { 0x20, "d" },
1525
    { 0x21, "f" },
1526
    { 0x22, "g" },
1527
    { 0x23, "h" },
1528
    { 0x24, "j" },
1529
    { 0x25, "k" },
1530
    { 0x26, "l" },
1531

    
1532
    { 0x2c, "z" },
1533
    { 0x2d, "x" },
1534
    { 0x2e, "c" },
1535
    { 0x2f, "v" },
1536
    { 0x30, "b" },
1537
    { 0x31, "n" },
1538
    { 0x32, "m" },
1539
    { 0x33, "comma" },
1540
    { 0x34, "dot" },
1541
    { 0x35, "slash" },
1542

    
1543
    { 0x37, "asterisk" },
1544

    
1545
    { 0x39, "spc" },
1546
    { 0x3a, "caps_lock" },
1547
    { 0x3b, "f1" },
1548
    { 0x3c, "f2" },
1549
    { 0x3d, "f3" },
1550
    { 0x3e, "f4" },
1551
    { 0x3f, "f5" },
1552
    { 0x40, "f6" },
1553
    { 0x41, "f7" },
1554
    { 0x42, "f8" },
1555
    { 0x43, "f9" },
1556
    { 0x44, "f10" },
1557
    { 0x45, "num_lock" },
1558
    { 0x46, "scroll_lock" },
1559

    
1560
    { 0xb5, "kp_divide" },
1561
    { 0x37, "kp_multiply" },
1562
    { 0x4a, "kp_subtract" },
1563
    { 0x4e, "kp_add" },
1564
    { 0x9c, "kp_enter" },
1565
    { 0x53, "kp_decimal" },
1566
    { 0x54, "sysrq" },
1567

    
1568
    { 0x52, "kp_0" },
1569
    { 0x4f, "kp_1" },
1570
    { 0x50, "kp_2" },
1571
    { 0x51, "kp_3" },
1572
    { 0x4b, "kp_4" },
1573
    { 0x4c, "kp_5" },
1574
    { 0x4d, "kp_6" },
1575
    { 0x47, "kp_7" },
1576
    { 0x48, "kp_8" },
1577
    { 0x49, "kp_9" },
1578

    
1579
    { 0x56, "<" },
1580

    
1581
    { 0x57, "f11" },
1582
    { 0x58, "f12" },
1583

    
1584
    { 0xb7, "print" },
1585

    
1586
    { 0xc7, "home" },
1587
    { 0xc9, "pgup" },
1588
    { 0xd1, "pgdn" },
1589
    { 0xcf, "end" },
1590

    
1591
    { 0xcb, "left" },
1592
    { 0xc8, "up" },
1593
    { 0xd0, "down" },
1594
    { 0xcd, "right" },
1595

    
1596
    { 0xd2, "insert" },
1597
    { 0xd3, "delete" },
1598
#if defined(TARGET_SPARC) && !defined(TARGET_SPARC64)
1599
    { 0xf0, "stop" },
1600
    { 0xf1, "again" },
1601
    { 0xf2, "props" },
1602
    { 0xf3, "undo" },
1603
    { 0xf4, "front" },
1604
    { 0xf5, "copy" },
1605
    { 0xf6, "open" },
1606
    { 0xf7, "paste" },
1607
    { 0xf8, "find" },
1608
    { 0xf9, "cut" },
1609
    { 0xfa, "lf" },
1610
    { 0xfb, "help" },
1611
    { 0xfc, "meta_l" },
1612
    { 0xfd, "meta_r" },
1613
    { 0xfe, "compose" },
1614
#endif
1615
    { 0, NULL },
1616
};
1617

    
1618
static int get_keycode(const char *key)
1619
{
1620
    const KeyDef *p;
1621
    char *endp;
1622
    int ret;
1623

    
1624
    for(p = key_defs; p->name != NULL; p++) {
1625
        if (!strcmp(key, p->name))
1626
            return p->keycode;
1627
    }
1628
    if (strstart(key, "0x", NULL)) {
1629
        ret = strtoul(key, &endp, 0);
1630
        if (*endp == '\0' && ret >= 0x01 && ret <= 0xff)
1631
            return ret;
1632
    }
1633
    return -1;
1634
}
1635

    
1636
#define MAX_KEYCODES 16
1637
static uint8_t keycodes[MAX_KEYCODES];
1638
static int nb_pending_keycodes;
1639
static QEMUTimer *key_timer;
1640

    
1641
static void release_keys(void *opaque)
1642
{
1643
    int keycode;
1644

    
1645
    while (nb_pending_keycodes > 0) {
1646
        nb_pending_keycodes--;
1647
        keycode = keycodes[nb_pending_keycodes];
1648
        if (keycode & 0x80)
1649
            kbd_put_keycode(0xe0);
1650
        kbd_put_keycode(keycode | 0x80);
1651
    }
1652
}
1653

    
1654
static void do_sendkey(Monitor *mon, const QDict *qdict)
1655
{
1656
    char keyname_buf[16];
1657
    char *separator;
1658
    int keyname_len, keycode, i;
1659
    const char *string = qdict_get_str(qdict, "string");
1660
    int has_hold_time = qdict_haskey(qdict, "hold_time");
1661
    int hold_time = qdict_get_try_int(qdict, "hold_time", -1);
1662

    
1663
    if (nb_pending_keycodes > 0) {
1664
        qemu_del_timer(key_timer);
1665
        release_keys(NULL);
1666
    }
1667
    if (!has_hold_time)
1668
        hold_time = 100;
1669
    i = 0;
1670
    while (1) {
1671
        separator = strchr(string, '-');
1672
        keyname_len = separator ? separator - string : strlen(string);
1673
        if (keyname_len > 0) {
1674
            pstrcpy(keyname_buf, sizeof(keyname_buf), string);
1675
            if (keyname_len > sizeof(keyname_buf) - 1) {
1676
                monitor_printf(mon, "invalid key: '%s...'\n", keyname_buf);
1677
                return;
1678
            }
1679
            if (i == MAX_KEYCODES) {
1680
                monitor_printf(mon, "too many keys\n");
1681
                return;
1682
            }
1683
            keyname_buf[keyname_len] = 0;
1684
            keycode = get_keycode(keyname_buf);
1685
            if (keycode < 0) {
1686
                monitor_printf(mon, "unknown key: '%s'\n", keyname_buf);
1687
                return;
1688
            }
1689
            keycodes[i++] = keycode;
1690
        }
1691
        if (!separator)
1692
            break;
1693
        string = separator + 1;
1694
    }
1695
    nb_pending_keycodes = i;
1696
    /* key down events */
1697
    for (i = 0; i < nb_pending_keycodes; i++) {
1698
        keycode = keycodes[i];
1699
        if (keycode & 0x80)
1700
            kbd_put_keycode(0xe0);
1701
        kbd_put_keycode(keycode & 0x7f);
1702
    }
1703
    /* delayed key up events */
1704
    qemu_mod_timer(key_timer, qemu_get_clock(vm_clock) +
1705
                   muldiv64(get_ticks_per_sec(), hold_time, 1000));
1706
}
1707

    
1708
static int mouse_button_state;
1709

    
1710
static void do_mouse_move(Monitor *mon, const QDict *qdict)
1711
{
1712
    int dx, dy, dz;
1713
    const char *dx_str = qdict_get_str(qdict, "dx_str");
1714
    const char *dy_str = qdict_get_str(qdict, "dy_str");
1715
    const char *dz_str = qdict_get_try_str(qdict, "dz_str");
1716
    dx = strtol(dx_str, NULL, 0);
1717
    dy = strtol(dy_str, NULL, 0);
1718
    dz = 0;
1719
    if (dz_str)
1720
        dz = strtol(dz_str, NULL, 0);
1721
    kbd_mouse_event(dx, dy, dz, mouse_button_state);
1722
}
1723

    
1724
static void do_mouse_button(Monitor *mon, const QDict *qdict)
1725
{
1726
    int button_state = qdict_get_int(qdict, "button_state");
1727
    mouse_button_state = button_state;
1728
    kbd_mouse_event(0, 0, 0, mouse_button_state);
1729
}
1730

    
1731
static void do_ioport_read(Monitor *mon, const QDict *qdict)
1732
{
1733
    int size = qdict_get_int(qdict, "size");
1734
    int addr = qdict_get_int(qdict, "addr");
1735
    int has_index = qdict_haskey(qdict, "index");
1736
    uint32_t val;
1737
    int suffix;
1738

    
1739
    if (has_index) {
1740
        int index = qdict_get_int(qdict, "index");
1741
        cpu_outb(addr & IOPORTS_MASK, index & 0xff);
1742
        addr++;
1743
    }
1744
    addr &= 0xffff;
1745

    
1746
    switch(size) {
1747
    default:
1748
    case 1:
1749
        val = cpu_inb(addr);
1750
        suffix = 'b';
1751
        break;
1752
    case 2:
1753
        val = cpu_inw(addr);
1754
        suffix = 'w';
1755
        break;
1756
    case 4:
1757
        val = cpu_inl(addr);
1758
        suffix = 'l';
1759
        break;
1760
    }
1761
    monitor_printf(mon, "port%c[0x%04x] = %#0*x\n",
1762
                   suffix, addr, size * 2, val);
1763
}
1764

    
1765
static void do_ioport_write(Monitor *mon, const QDict *qdict)
1766
{
1767
    int size = qdict_get_int(qdict, "size");
1768
    int addr = qdict_get_int(qdict, "addr");
1769
    int val = qdict_get_int(qdict, "val");
1770

    
1771
    addr &= IOPORTS_MASK;
1772

    
1773
    switch (size) {
1774
    default:
1775
    case 1:
1776
        cpu_outb(addr, val);
1777
        break;
1778
    case 2:
1779
        cpu_outw(addr, val);
1780
        break;
1781
    case 4:
1782
        cpu_outl(addr, val);
1783
        break;
1784
    }
1785
}
1786

    
1787
static void do_boot_set(Monitor *mon, const QDict *qdict)
1788
{
1789
    int res;
1790
    const char *bootdevice = qdict_get_str(qdict, "bootdevice");
1791

    
1792
    res = qemu_boot_set(bootdevice);
1793
    if (res == 0) {
1794
        monitor_printf(mon, "boot device list now set to %s\n", bootdevice);
1795
    } else if (res > 0) {
1796
        monitor_printf(mon, "setting boot device list failed\n");
1797
    } else {
1798
        monitor_printf(mon, "no function defined to set boot device list for "
1799
                       "this architecture\n");
1800
    }
1801
}
1802

    
1803
/**
1804
 * do_system_reset(): Issue a machine reset
1805
 */
1806
static void do_system_reset(Monitor *mon, const QDict *qdict,
1807
                            QObject **ret_data)
1808
{
1809
    qemu_system_reset_request();
1810
}
1811

    
1812
/**
1813
 * do_system_powerdown(): Issue a machine powerdown
1814
 */
1815
static void do_system_powerdown(Monitor *mon, const QDict *qdict,
1816
                                QObject **ret_data)
1817
{
1818
    qemu_system_powerdown_request();
1819
}
1820

    
1821
#if defined(TARGET_I386)
1822
static void print_pte(Monitor *mon, uint32_t addr, uint32_t pte, uint32_t mask)
1823
{
1824
    monitor_printf(mon, "%08x: %08x %c%c%c%c%c%c%c%c\n",
1825
                   addr,
1826
                   pte & mask,
1827
                   pte & PG_GLOBAL_MASK ? 'G' : '-',
1828
                   pte & PG_PSE_MASK ? 'P' : '-',
1829
                   pte & PG_DIRTY_MASK ? 'D' : '-',
1830
                   pte & PG_ACCESSED_MASK ? 'A' : '-',
1831
                   pte & PG_PCD_MASK ? 'C' : '-',
1832
                   pte & PG_PWT_MASK ? 'T' : '-',
1833
                   pte & PG_USER_MASK ? 'U' : '-',
1834
                   pte & PG_RW_MASK ? 'W' : '-');
1835
}
1836

    
1837
static void tlb_info(Monitor *mon)
1838
{
1839
    CPUState *env;
1840
    int l1, l2;
1841
    uint32_t pgd, pde, pte;
1842

    
1843
    env = mon_get_cpu();
1844

    
1845
    if (!(env->cr[0] & CR0_PG_MASK)) {
1846
        monitor_printf(mon, "PG disabled\n");
1847
        return;
1848
    }
1849
    pgd = env->cr[3] & ~0xfff;
1850
    for(l1 = 0; l1 < 1024; l1++) {
1851
        cpu_physical_memory_read(pgd + l1 * 4, (uint8_t *)&pde, 4);
1852
        pde = le32_to_cpu(pde);
1853
        if (pde & PG_PRESENT_MASK) {
1854
            if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
1855
                print_pte(mon, (l1 << 22), pde, ~((1 << 20) - 1));
1856
            } else {
1857
                for(l2 = 0; l2 < 1024; l2++) {
1858
                    cpu_physical_memory_read((pde & ~0xfff) + l2 * 4,
1859
                                             (uint8_t *)&pte, 4);
1860
                    pte = le32_to_cpu(pte);
1861
                    if (pte & PG_PRESENT_MASK) {
1862
                        print_pte(mon, (l1 << 22) + (l2 << 12),
1863
                                  pte & ~PG_PSE_MASK,
1864
                                  ~0xfff);
1865
                    }
1866
                }
1867
            }
1868
        }
1869
    }
1870
}
1871

    
1872
static void mem_print(Monitor *mon, uint32_t *pstart, int *plast_prot,
1873
                      uint32_t end, int prot)
1874
{
1875
    int prot1;
1876
    prot1 = *plast_prot;
1877
    if (prot != prot1) {
1878
        if (*pstart != -1) {
1879
            monitor_printf(mon, "%08x-%08x %08x %c%c%c\n",
1880
                           *pstart, end, end - *pstart,
1881
                           prot1 & PG_USER_MASK ? 'u' : '-',
1882
                           'r',
1883
                           prot1 & PG_RW_MASK ? 'w' : '-');
1884
        }
1885
        if (prot != 0)
1886
            *pstart = end;
1887
        else
1888
            *pstart = -1;
1889
        *plast_prot = prot;
1890
    }
1891
}
1892

    
1893
static void mem_info(Monitor *mon)
1894
{
1895
    CPUState *env;
1896
    int l1, l2, prot, last_prot;
1897
    uint32_t pgd, pde, pte, start, end;
1898

    
1899
    env = mon_get_cpu();
1900

    
1901
    if (!(env->cr[0] & CR0_PG_MASK)) {
1902
        monitor_printf(mon, "PG disabled\n");
1903
        return;
1904
    }
1905
    pgd = env->cr[3] & ~0xfff;
1906
    last_prot = 0;
1907
    start = -1;
1908
    for(l1 = 0; l1 < 1024; l1++) {
1909
        cpu_physical_memory_read(pgd + l1 * 4, (uint8_t *)&pde, 4);
1910
        pde = le32_to_cpu(pde);
1911
        end = l1 << 22;
1912
        if (pde & PG_PRESENT_MASK) {
1913
            if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
1914
                prot = pde & (PG_USER_MASK | PG_RW_MASK | PG_PRESENT_MASK);
1915
                mem_print(mon, &start, &last_prot, end, prot);
1916
            } else {
1917
                for(l2 = 0; l2 < 1024; l2++) {
1918
                    cpu_physical_memory_read((pde & ~0xfff) + l2 * 4,
1919
                                             (uint8_t *)&pte, 4);
1920
                    pte = le32_to_cpu(pte);
1921
                    end = (l1 << 22) + (l2 << 12);
1922
                    if (pte & PG_PRESENT_MASK) {
1923
                        prot = pte & (PG_USER_MASK | PG_RW_MASK | PG_PRESENT_MASK);
1924
                    } else {
1925
                        prot = 0;
1926
                    }
1927
                    mem_print(mon, &start, &last_prot, end, prot);
1928
                }
1929
            }
1930
        } else {
1931
            prot = 0;
1932
            mem_print(mon, &start, &last_prot, end, prot);
1933
        }
1934
    }
1935
}
1936
#endif
1937

    
1938
#if defined(TARGET_SH4)
1939

    
1940
static void print_tlb(Monitor *mon, int idx, tlb_t *tlb)
1941
{
1942
    monitor_printf(mon, " tlb%i:\t"
1943
                   "asid=%hhu vpn=%x\tppn=%x\tsz=%hhu size=%u\t"
1944
                   "v=%hhu shared=%hhu cached=%hhu prot=%hhu "
1945
                   "dirty=%hhu writethrough=%hhu\n",
1946
                   idx,
1947
                   tlb->asid, tlb->vpn, tlb->ppn, tlb->sz, tlb->size,
1948
                   tlb->v, tlb->sh, tlb->c, tlb->pr,
1949
                   tlb->d, tlb->wt);
1950
}
1951

    
1952
static void tlb_info(Monitor *mon)
1953
{
1954
    CPUState *env = mon_get_cpu();
1955
    int i;
1956

    
1957
    monitor_printf (mon, "ITLB:\n");
1958
    for (i = 0 ; i < ITLB_SIZE ; i++)
1959
        print_tlb (mon, i, &env->itlb[i]);
1960
    monitor_printf (mon, "UTLB:\n");
1961
    for (i = 0 ; i < UTLB_SIZE ; i++)
1962
        print_tlb (mon, i, &env->utlb[i]);
1963
}
1964

    
1965
#endif
1966

    
1967
static void do_info_kvm_print(Monitor *mon, const QObject *data)
1968
{
1969
    QDict *qdict;
1970

    
1971
    qdict = qobject_to_qdict(data);
1972

    
1973
    monitor_printf(mon, "kvm support: ");
1974
    if (qdict_get_bool(qdict, "present")) {
1975
        monitor_printf(mon, "%s\n", qdict_get_bool(qdict, "enabled") ?
1976
                                    "enabled" : "disabled");
1977
    } else {
1978
        monitor_printf(mon, "not compiled\n");
1979
    }
1980
}
1981

    
1982
/**
1983
 * do_info_kvm(): Show KVM information
1984
 *
1985
 * Return a QDict with the following information:
1986
 *
1987
 * - "enabled": true if KVM support is enabled, false otherwise
1988
 * - "present": true if QEMU has KVM support, false otherwise
1989
 *
1990
 * Example:
1991
 *
1992
 * { "enabled": true, "present": true }
1993
 */
1994
static void do_info_kvm(Monitor *mon, QObject **ret_data)
1995
{
1996
#ifdef CONFIG_KVM
1997
    *ret_data = qobject_from_jsonf("{ 'enabled': %i, 'present': true }",
1998
                                   kvm_enabled());
1999
#else
2000
    *ret_data = qobject_from_jsonf("{ 'enabled': false, 'present': false }");
2001
#endif
2002
}
2003

    
2004
static void do_info_numa(Monitor *mon)
2005
{
2006
    int i;
2007
    CPUState *env;
2008

    
2009
    monitor_printf(mon, "%d nodes\n", nb_numa_nodes);
2010
    for (i = 0; i < nb_numa_nodes; i++) {
2011
        monitor_printf(mon, "node %d cpus:", i);
2012
        for (env = first_cpu; env != NULL; env = env->next_cpu) {
2013
            if (env->numa_node == i) {
2014
                monitor_printf(mon, " %d", env->cpu_index);
2015
            }
2016
        }
2017
        monitor_printf(mon, "\n");
2018
        monitor_printf(mon, "node %d size: %" PRId64 " MB\n", i,
2019
            node_mem[i] >> 20);
2020
    }
2021
}
2022

    
2023
#ifdef CONFIG_PROFILER
2024

    
2025
int64_t qemu_time;
2026
int64_t dev_time;
2027

    
2028
static void do_info_profile(Monitor *mon)
2029
{
2030
    int64_t total;
2031
    total = qemu_time;
2032
    if (total == 0)
2033
        total = 1;
2034
    monitor_printf(mon, "async time  %" PRId64 " (%0.3f)\n",
2035
                   dev_time, dev_time / (double)get_ticks_per_sec());
2036
    monitor_printf(mon, "qemu time   %" PRId64 " (%0.3f)\n",
2037
                   qemu_time, qemu_time / (double)get_ticks_per_sec());
2038
    qemu_time = 0;
2039
    dev_time = 0;
2040
}
2041
#else
2042
static void do_info_profile(Monitor *mon)
2043
{
2044
    monitor_printf(mon, "Internal profiler not compiled\n");
2045
}
2046
#endif
2047

    
2048
/* Capture support */
2049
static QLIST_HEAD (capture_list_head, CaptureState) capture_head;
2050

    
2051
static void do_info_capture(Monitor *mon)
2052
{
2053
    int i;
2054
    CaptureState *s;
2055

    
2056
    for (s = capture_head.lh_first, i = 0; s; s = s->entries.le_next, ++i) {
2057
        monitor_printf(mon, "[%d]: ", i);
2058
        s->ops.info (s->opaque);
2059
    }
2060
}
2061

    
2062
#ifdef HAS_AUDIO
2063
static void do_stop_capture(Monitor *mon, const QDict *qdict)
2064
{
2065
    int i;
2066
    int n = qdict_get_int(qdict, "n");
2067
    CaptureState *s;
2068

    
2069
    for (s = capture_head.lh_first, i = 0; s; s = s->entries.le_next, ++i) {
2070
        if (i == n) {
2071
            s->ops.destroy (s->opaque);
2072
            QLIST_REMOVE (s, entries);
2073
            qemu_free (s);
2074
            return;
2075
        }
2076
    }
2077
}
2078

    
2079
static void do_wav_capture(Monitor *mon, const QDict *qdict)
2080
{
2081
    const char *path = qdict_get_str(qdict, "path");
2082
    int has_freq = qdict_haskey(qdict, "freq");
2083
    int freq = qdict_get_try_int(qdict, "freq", -1);
2084
    int has_bits = qdict_haskey(qdict, "bits");
2085
    int bits = qdict_get_try_int(qdict, "bits", -1);
2086
    int has_channels = qdict_haskey(qdict, "nchannels");
2087
    int nchannels = qdict_get_try_int(qdict, "nchannels", -1);
2088
    CaptureState *s;
2089

    
2090
    s = qemu_mallocz (sizeof (*s));
2091

    
2092
    freq = has_freq ? freq : 44100;
2093
    bits = has_bits ? bits : 16;
2094
    nchannels = has_channels ? nchannels : 2;
2095

    
2096
    if (wav_start_capture (s, path, freq, bits, nchannels)) {
2097
        monitor_printf(mon, "Faied to add wave capture\n");
2098
        qemu_free (s);
2099
    }
2100
    QLIST_INSERT_HEAD (&capture_head, s, entries);
2101
}
2102
#endif
2103

    
2104
#if defined(TARGET_I386)
2105
static void do_inject_nmi(Monitor *mon, const QDict *qdict)
2106
{
2107
    CPUState *env;
2108
    int cpu_index = qdict_get_int(qdict, "cpu_index");
2109

    
2110
    for (env = first_cpu; env != NULL; env = env->next_cpu)
2111
        if (env->cpu_index == cpu_index) {
2112
            cpu_interrupt(env, CPU_INTERRUPT_NMI);
2113
            break;
2114
        }
2115
}
2116
#endif
2117

    
2118
static void do_info_status_print(Monitor *mon, const QObject *data)
2119
{
2120
    QDict *qdict;
2121

    
2122
    qdict = qobject_to_qdict(data);
2123

    
2124
    monitor_printf(mon, "VM status: ");
2125
    if (qdict_get_bool(qdict, "running")) {
2126
        monitor_printf(mon, "running");
2127
        if (qdict_get_bool(qdict, "singlestep")) {
2128
            monitor_printf(mon, " (single step mode)");
2129
        }
2130
    } else {
2131
        monitor_printf(mon, "paused");
2132
    }
2133

    
2134
    monitor_printf(mon, "\n");
2135
}
2136

    
2137
/**
2138
 * do_info_status(): VM status
2139
 *
2140
 * Return a QDict with the following information:
2141
 *
2142
 * - "running": true if the VM is running, or false if it is paused
2143
 * - "singlestep": true if the VM is in single step mode, false otherwise
2144
 *
2145
 * Example:
2146
 *
2147
 * { "running": true, "singlestep": false }
2148
 */
2149
static void do_info_status(Monitor *mon, QObject **ret_data)
2150
{
2151
    *ret_data = qobject_from_jsonf("{ 'running': %i, 'singlestep': %i }",
2152
                                    vm_running, singlestep);
2153
}
2154

    
2155
static void print_balloon_stat(const char *key, QObject *obj, void *opaque)
2156
{
2157
    Monitor *mon = opaque;
2158

    
2159
    if (strcmp(key, "actual"))
2160
        monitor_printf(mon, ",%s=%" PRId64, key,
2161
                       qint_get_int(qobject_to_qint(obj)));
2162
}
2163

    
2164
static void monitor_print_balloon(Monitor *mon, const QObject *data)
2165
{
2166
    QDict *qdict;
2167

    
2168
    qdict = qobject_to_qdict(data);
2169
    if (!qdict_haskey(qdict, "actual"))
2170
        return;
2171

    
2172
    monitor_printf(mon, "balloon: actual=%" PRId64,
2173
                   qdict_get_int(qdict, "actual") >> 20);
2174
    qdict_iter(qdict, print_balloon_stat, mon);
2175
    monitor_printf(mon, "\n");
2176
}
2177

    
2178
/**
2179
 * do_info_balloon(): Balloon information
2180
 *
2181
 * Make an asynchronous request for balloon info.  When the request completes
2182
 * a QDict will be returned according to the following specification:
2183
 *
2184
 * - "actual": current balloon value in bytes
2185
 * The following fields may or may not be present:
2186
 * - "mem_swapped_in": Amount of memory swapped in (bytes)
2187
 * - "mem_swapped_out": Amount of memory swapped out (bytes)
2188
 * - "major_page_faults": Number of major faults
2189
 * - "minor_page_faults": Number of minor faults
2190
 * - "free_mem": Total amount of free and unused memory (bytes)
2191
 * - "total_mem": Total amount of available memory (bytes)
2192
 *
2193
 * Example:
2194
 *
2195
 * { "actual": 1073741824, "mem_swapped_in": 0, "mem_swapped_out": 0,
2196
 *   "major_page_faults": 142, "minor_page_faults": 239245,
2197
 *   "free_mem": 1014185984, "total_mem": 1044668416 }
2198
 */
2199
static int do_info_balloon(Monitor *mon, MonitorCompletion cb, void *opaque)
2200
{
2201
    int ret;
2202

    
2203
    if (kvm_enabled() && !kvm_has_sync_mmu()) {
2204
        qemu_error_new(QERR_KVM_MISSING_CAP, "synchronous MMU", "balloon");
2205
        return -1;
2206
    }
2207

    
2208
    ret = qemu_balloon_status(cb, opaque);
2209
    if (!ret) {
2210
        qemu_error_new(QERR_DEVICE_NOT_ACTIVE, "balloon");
2211
        return -1;
2212
    }
2213

    
2214
    return 0;
2215
}
2216

    
2217
/**
2218
 * do_balloon(): Request VM to change its memory allocation
2219
 */
2220
static int do_balloon(Monitor *mon, const QDict *params,
2221
                       MonitorCompletion cb, void *opaque)
2222
{
2223
    int ret;
2224

    
2225
    if (kvm_enabled() && !kvm_has_sync_mmu()) {
2226
        qemu_error_new(QERR_KVM_MISSING_CAP, "synchronous MMU", "balloon");
2227
        return -1;
2228
    }
2229

    
2230
    ret = qemu_balloon(qdict_get_int(params, "value"), cb, opaque);
2231
    if (ret == 0) {
2232
        qemu_error_new(QERR_DEVICE_NOT_ACTIVE, "balloon");
2233
        return -1;
2234
    }
2235

    
2236
    return 0;
2237
}
2238

    
2239
static qemu_acl *find_acl(Monitor *mon, const char *name)
2240
{
2241
    qemu_acl *acl = qemu_acl_find(name);
2242

    
2243
    if (!acl) {
2244
        monitor_printf(mon, "acl: unknown list '%s'\n", name);
2245
    }
2246
    return acl;
2247
}
2248

    
2249
static void do_acl_show(Monitor *mon, const QDict *qdict)
2250
{
2251
    const char *aclname = qdict_get_str(qdict, "aclname");
2252
    qemu_acl *acl = find_acl(mon, aclname);
2253
    qemu_acl_entry *entry;
2254
    int i = 0;
2255

    
2256
    if (acl) {
2257
        monitor_printf(mon, "policy: %s\n",
2258
                       acl->defaultDeny ? "deny" : "allow");
2259
        QTAILQ_FOREACH(entry, &acl->entries, next) {
2260
            i++;
2261
            monitor_printf(mon, "%d: %s %s\n", i,
2262
                           entry->deny ? "deny" : "allow", entry->match);
2263
        }
2264
    }
2265
}
2266

    
2267
static void do_acl_reset(Monitor *mon, const QDict *qdict)
2268
{
2269
    const char *aclname = qdict_get_str(qdict, "aclname");
2270
    qemu_acl *acl = find_acl(mon, aclname);
2271

    
2272
    if (acl) {
2273
        qemu_acl_reset(acl);
2274
        monitor_printf(mon, "acl: removed all rules\n");
2275
    }
2276
}
2277

    
2278
static void do_acl_policy(Monitor *mon, const QDict *qdict)
2279
{
2280
    const char *aclname = qdict_get_str(qdict, "aclname");
2281
    const char *policy = qdict_get_str(qdict, "policy");
2282
    qemu_acl *acl = find_acl(mon, aclname);
2283

    
2284
    if (acl) {
2285
        if (strcmp(policy, "allow") == 0) {
2286
            acl->defaultDeny = 0;
2287
            monitor_printf(mon, "acl: policy set to 'allow'\n");
2288
        } else if (strcmp(policy, "deny") == 0) {
2289
            acl->defaultDeny = 1;
2290
            monitor_printf(mon, "acl: policy set to 'deny'\n");
2291
        } else {
2292
            monitor_printf(mon, "acl: unknown policy '%s', "
2293
                           "expected 'deny' or 'allow'\n", policy);
2294
        }
2295
    }
2296
}
2297

    
2298
static void do_acl_add(Monitor *mon, const QDict *qdict)
2299
{
2300
    const char *aclname = qdict_get_str(qdict, "aclname");
2301
    const char *match = qdict_get_str(qdict, "match");
2302
    const char *policy = qdict_get_str(qdict, "policy");
2303
    int has_index = qdict_haskey(qdict, "index");
2304
    int index = qdict_get_try_int(qdict, "index", -1);
2305
    qemu_acl *acl = find_acl(mon, aclname);
2306
    int deny, ret;
2307

    
2308
    if (acl) {
2309
        if (strcmp(policy, "allow") == 0) {
2310
            deny = 0;
2311
        } else if (strcmp(policy, "deny") == 0) {
2312
            deny = 1;
2313
        } else {
2314
            monitor_printf(mon, "acl: unknown policy '%s', "
2315
                           "expected 'deny' or 'allow'\n", policy);
2316
            return;
2317
        }
2318
        if (has_index)
2319
            ret = qemu_acl_insert(acl, deny, match, index);
2320
        else
2321
            ret = qemu_acl_append(acl, deny, match);
2322
        if (ret < 0)
2323
            monitor_printf(mon, "acl: unable to add acl entry\n");
2324
        else
2325
            monitor_printf(mon, "acl: added rule at position %d\n", ret);
2326
    }
2327
}
2328

    
2329
static void do_acl_remove(Monitor *mon, const QDict *qdict)
2330
{
2331
    const char *aclname = qdict_get_str(qdict, "aclname");
2332
    const char *match = qdict_get_str(qdict, "match");
2333
    qemu_acl *acl = find_acl(mon, aclname);
2334
    int ret;
2335

    
2336
    if (acl) {
2337
        ret = qemu_acl_remove(acl, match);
2338
        if (ret < 0)
2339
            monitor_printf(mon, "acl: no matching acl entry\n");
2340
        else
2341
            monitor_printf(mon, "acl: removed rule at position %d\n", ret);
2342
    }
2343
}
2344

    
2345
#if defined(TARGET_I386)
2346
static void do_inject_mce(Monitor *mon, const QDict *qdict)
2347
{
2348
    CPUState *cenv;
2349
    int cpu_index = qdict_get_int(qdict, "cpu_index");
2350
    int bank = qdict_get_int(qdict, "bank");
2351
    uint64_t status = qdict_get_int(qdict, "status");
2352
    uint64_t mcg_status = qdict_get_int(qdict, "mcg_status");
2353
    uint64_t addr = qdict_get_int(qdict, "addr");
2354
    uint64_t misc = qdict_get_int(qdict, "misc");
2355

    
2356
    for (cenv = first_cpu; cenv != NULL; cenv = cenv->next_cpu)
2357
        if (cenv->cpu_index == cpu_index && cenv->mcg_cap) {
2358
            cpu_inject_x86_mce(cenv, bank, status, mcg_status, addr, misc);
2359
            break;
2360
        }
2361
}
2362
#endif
2363

    
2364
static void do_getfd(Monitor *mon, const QDict *qdict, QObject **ret_data)
2365
{
2366
    const char *fdname = qdict_get_str(qdict, "fdname");
2367
    mon_fd_t *monfd;
2368
    int fd;
2369

    
2370
    fd = qemu_chr_get_msgfd(mon->chr);
2371
    if (fd == -1) {
2372
        qemu_error_new(QERR_FD_NOT_SUPPLIED);
2373
        return;
2374
    }
2375

    
2376
    if (qemu_isdigit(fdname[0])) {
2377
        qemu_error_new(QERR_INVALID_PARAMETER, "fdname");
2378
        return;
2379
    }
2380

    
2381
    fd = dup(fd);
2382
    if (fd == -1) {
2383
        if (errno == EMFILE)
2384
            qemu_error_new(QERR_TOO_MANY_FILES);
2385
        else
2386
            qemu_error_new(QERR_UNDEFINED_ERROR);
2387
        return;
2388
    }
2389

    
2390
    QLIST_FOREACH(monfd, &mon->fds, next) {
2391
        if (strcmp(monfd->name, fdname) != 0) {
2392
            continue;
2393
        }
2394

    
2395
        close(monfd->fd);
2396
        monfd->fd = fd;
2397
        return;
2398
    }
2399

    
2400
    monfd = qemu_mallocz(sizeof(mon_fd_t));
2401
    monfd->name = qemu_strdup(fdname);
2402
    monfd->fd = fd;
2403

    
2404
    QLIST_INSERT_HEAD(&mon->fds, monfd, next);
2405
}
2406

    
2407
static void do_closefd(Monitor *mon, const QDict *qdict, QObject **ret_data)
2408
{
2409
    const char *fdname = qdict_get_str(qdict, "fdname");
2410
    mon_fd_t *monfd;
2411

    
2412
    QLIST_FOREACH(monfd, &mon->fds, next) {
2413
        if (strcmp(monfd->name, fdname) != 0) {
2414
            continue;
2415
        }
2416

    
2417
        QLIST_REMOVE(monfd, next);
2418
        close(monfd->fd);
2419
        qemu_free(monfd->name);
2420
        qemu_free(monfd);
2421
        return;
2422
    }
2423

    
2424
    qemu_error_new(QERR_FD_NOT_FOUND, fdname);
2425
}
2426

    
2427
static void do_loadvm(Monitor *mon, const QDict *qdict)
2428
{
2429
    int saved_vm_running  = vm_running;
2430
    const char *name = qdict_get_str(qdict, "name");
2431

    
2432
    vm_stop(0);
2433

    
2434
    if (load_vmstate(mon, name) >= 0 && saved_vm_running)
2435
        vm_start();
2436
}
2437

    
2438
int monitor_get_fd(Monitor *mon, const char *fdname)
2439
{
2440
    mon_fd_t *monfd;
2441

    
2442
    QLIST_FOREACH(monfd, &mon->fds, next) {
2443
        int fd;
2444

    
2445
        if (strcmp(monfd->name, fdname) != 0) {
2446
            continue;
2447
        }
2448

    
2449
        fd = monfd->fd;
2450

    
2451
        /* caller takes ownership of fd */
2452
        QLIST_REMOVE(monfd, next);
2453
        qemu_free(monfd->name);
2454
        qemu_free(monfd);
2455

    
2456
        return fd;
2457
    }
2458

    
2459
    return -1;
2460
}
2461

    
2462
static const mon_cmd_t mon_cmds[] = {
2463
#include "qemu-monitor.h"
2464
    { NULL, NULL, },
2465
};
2466

    
2467
/* Please update qemu-monitor.hx when adding or changing commands */
2468
static const mon_cmd_t info_cmds[] = {
2469
    {
2470
        .name       = "version",
2471
        .args_type  = "",
2472
        .params     = "",
2473
        .help       = "show the version of QEMU",
2474
        .user_print = do_info_version_print,
2475
        .mhandler.info_new = do_info_version,
2476
    },
2477
    {
2478
        .name       = "commands",
2479
        .args_type  = "",
2480
        .params     = "",
2481
        .help       = "list QMP available commands",
2482
        .user_print = monitor_user_noop,
2483
        .mhandler.info_new = do_info_commands,
2484
    },
2485
    {
2486
        .name       = "network",
2487
        .args_type  = "",
2488
        .params     = "",
2489
        .help       = "show the network state",
2490
        .mhandler.info = do_info_network,
2491
    },
2492
    {
2493
        .name       = "chardev",
2494
        .args_type  = "",
2495
        .params     = "",
2496
        .help       = "show the character devices",
2497
        .user_print = qemu_chr_info_print,
2498
        .mhandler.info_new = qemu_chr_info,
2499
    },
2500
    {
2501
        .name       = "block",
2502
        .args_type  = "",
2503
        .params     = "",
2504
        .help       = "show the block devices",
2505
        .user_print = bdrv_info_print,
2506
        .mhandler.info_new = bdrv_info,
2507
    },
2508
    {
2509
        .name       = "blockstats",
2510
        .args_type  = "",
2511
        .params     = "",
2512
        .help       = "show block device statistics",
2513
        .user_print = bdrv_stats_print,
2514
        .mhandler.info_new = bdrv_info_stats,
2515
    },
2516
    {
2517
        .name       = "registers",
2518
        .args_type  = "",
2519
        .params     = "",
2520
        .help       = "show the cpu registers",
2521
        .mhandler.info = do_info_registers,
2522
    },
2523
    {
2524
        .name       = "cpus",
2525
        .args_type  = "",
2526
        .params     = "",
2527
        .help       = "show infos for each CPU",
2528
        .user_print = monitor_print_cpus,
2529
        .mhandler.info_new = do_info_cpus,
2530
    },
2531
    {
2532
        .name       = "history",
2533
        .args_type  = "",
2534
        .params     = "",
2535
        .help       = "show the command line history",
2536
        .mhandler.info = do_info_history,
2537
    },
2538
    {
2539
        .name       = "irq",
2540
        .args_type  = "",
2541
        .params     = "",
2542
        .help       = "show the interrupts statistics (if available)",
2543
        .mhandler.info = irq_info,
2544
    },
2545
    {
2546
        .name       = "pic",
2547
        .args_type  = "",
2548
        .params     = "",
2549
        .help       = "show i8259 (PIC) state",
2550
        .mhandler.info = pic_info,
2551
    },
2552
    {
2553
        .name       = "pci",
2554
        .args_type  = "",
2555
        .params     = "",
2556
        .help       = "show PCI info",
2557
        .user_print = do_pci_info_print,
2558
        .mhandler.info_new = do_pci_info,
2559
    },
2560
#if defined(TARGET_I386) || defined(TARGET_SH4)
2561
    {
2562
        .name       = "tlb",
2563
        .args_type  = "",
2564
        .params     = "",
2565
        .help       = "show virtual to physical memory mappings",
2566
        .mhandler.info = tlb_info,
2567
    },
2568
#endif
2569
#if defined(TARGET_I386)
2570
    {
2571
        .name       = "mem",
2572
        .args_type  = "",
2573
        .params     = "",
2574
        .help       = "show the active virtual memory mappings",
2575
        .mhandler.info = mem_info,
2576
    },
2577
    {
2578
        .name       = "hpet",
2579
        .args_type  = "",
2580
        .params     = "",
2581
        .help       = "show state of HPET",
2582
        .user_print = do_info_hpet_print,
2583
        .mhandler.info_new = do_info_hpet,
2584
    },
2585
#endif
2586
    {
2587
        .name       = "jit",
2588
        .args_type  = "",
2589
        .params     = "",
2590
        .help       = "show dynamic compiler info",
2591
        .mhandler.info = do_info_jit,
2592
    },
2593
    {
2594
        .name       = "kvm",
2595
        .args_type  = "",
2596
        .params     = "",
2597
        .help       = "show KVM information",
2598
        .user_print = do_info_kvm_print,
2599
        .mhandler.info_new = do_info_kvm,
2600
    },
2601
    {
2602
        .name       = "numa",
2603
        .args_type  = "",
2604
        .params     = "",
2605
        .help       = "show NUMA information",
2606
        .mhandler.info = do_info_numa,
2607
    },
2608
    {
2609
        .name       = "usb",
2610
        .args_type  = "",
2611
        .params     = "",
2612
        .help       = "show guest USB devices",
2613
        .mhandler.info = usb_info,
2614
    },
2615
    {
2616
        .name       = "usbhost",
2617
        .args_type  = "",
2618
        .params     = "",
2619
        .help       = "show host USB devices",
2620
        .mhandler.info = usb_host_info,
2621
    },
2622
    {
2623
        .name       = "profile",
2624
        .args_type  = "",
2625
        .params     = "",
2626
        .help       = "show profiling information",
2627
        .mhandler.info = do_info_profile,
2628
    },
2629
    {
2630
        .name       = "capture",
2631
        .args_type  = "",
2632
        .params     = "",
2633
        .help       = "show capture information",
2634
        .mhandler.info = do_info_capture,
2635
    },
2636
    {
2637
        .name       = "snapshots",
2638
        .args_type  = "",
2639
        .params     = "",
2640
        .help       = "show the currently saved VM snapshots",
2641
        .mhandler.info = do_info_snapshots,
2642
    },
2643
    {
2644
        .name       = "status",
2645
        .args_type  = "",
2646
        .params     = "",
2647
        .help       = "show the current VM status (running|paused)",
2648
        .user_print = do_info_status_print,
2649
        .mhandler.info_new = do_info_status,
2650
    },
2651
    {
2652
        .name       = "pcmcia",
2653
        .args_type  = "",
2654
        .params     = "",
2655
        .help       = "show guest PCMCIA status",
2656
        .mhandler.info = pcmcia_info,
2657
    },
2658
    {
2659
        .name       = "mice",
2660
        .args_type  = "",
2661
        .params     = "",
2662
        .help       = "show which guest mouse is receiving events",
2663
        .user_print = do_info_mice_print,
2664
        .mhandler.info_new = do_info_mice,
2665
    },
2666
    {
2667
        .name       = "vnc",
2668
        .args_type  = "",
2669
        .params     = "",
2670
        .help       = "show the vnc server status",
2671
        .user_print = do_info_vnc_print,
2672
        .mhandler.info_new = do_info_vnc,
2673
    },
2674
    {
2675
        .name       = "name",
2676
        .args_type  = "",
2677
        .params     = "",
2678
        .help       = "show the current VM name",
2679
        .user_print = do_info_name_print,
2680
        .mhandler.info_new = do_info_name,
2681
    },
2682
    {
2683
        .name       = "uuid",
2684
        .args_type  = "",
2685
        .params     = "",
2686
        .help       = "show the current VM UUID",
2687
        .user_print = do_info_uuid_print,
2688
        .mhandler.info_new = do_info_uuid,
2689
    },
2690
#if defined(TARGET_PPC)
2691
    {
2692
        .name       = "cpustats",
2693
        .args_type  = "",
2694
        .params     = "",
2695
        .help       = "show CPU statistics",
2696
        .mhandler.info = do_info_cpu_stats,
2697
    },
2698
#endif
2699
#if defined(CONFIG_SLIRP)
2700
    {
2701
        .name       = "usernet",
2702
        .args_type  = "",
2703
        .params     = "",
2704
        .help       = "show user network stack connection states",
2705
        .mhandler.info = do_info_usernet,
2706
    },
2707
#endif
2708
    {
2709
        .name       = "migrate",
2710
        .args_type  = "",
2711
        .params     = "",
2712
        .help       = "show migration status",
2713
        .user_print = do_info_migrate_print,
2714
        .mhandler.info_new = do_info_migrate,
2715
    },
2716
    {
2717
        .name       = "balloon",
2718
        .args_type  = "",
2719
        .params     = "",
2720
        .help       = "show balloon information",
2721
        .user_print = monitor_print_balloon,
2722
        .mhandler.info_async = do_info_balloon,
2723
        .async      = 1,
2724
    },
2725
    {
2726
        .name       = "qtree",
2727
        .args_type  = "",
2728
        .params     = "",
2729
        .help       = "show device tree",
2730
        .mhandler.info = do_info_qtree,
2731
    },
2732
    {
2733
        .name       = "qdm",
2734
        .args_type  = "",
2735
        .params     = "",
2736
        .help       = "show qdev device model list",
2737
        .mhandler.info = do_info_qdm,
2738
    },
2739
    {
2740
        .name       = "roms",
2741
        .args_type  = "",
2742
        .params     = "",
2743
        .help       = "show roms",
2744
        .mhandler.info = do_info_roms,
2745
    },
2746
    {
2747
        .name       = NULL,
2748
    },
2749
};
2750

    
2751
/*******************************************************************/
2752

    
2753
static const char *pch;
2754
static jmp_buf expr_env;
2755

    
2756
#define MD_TLONG 0
2757
#define MD_I32   1
2758

    
2759
typedef struct MonitorDef {
2760
    const char *name;
2761
    int offset;
2762
    target_long (*get_value)(const struct MonitorDef *md, int val);
2763
    int type;
2764
} MonitorDef;
2765

    
2766
#if defined(TARGET_I386)
2767
static target_long monitor_get_pc (const struct MonitorDef *md, int val)
2768
{
2769
    CPUState *env = mon_get_cpu();
2770
    return env->eip + env->segs[R_CS].base;
2771
}
2772
#endif
2773

    
2774
#if defined(TARGET_PPC)
2775
static target_long monitor_get_ccr (const struct MonitorDef *md, int val)
2776
{
2777
    CPUState *env = mon_get_cpu();
2778
    unsigned int u;
2779
    int i;
2780

    
2781
    u = 0;
2782
    for (i = 0; i < 8; i++)
2783
        u |= env->crf[i] << (32 - (4 * i));
2784

    
2785
    return u;
2786
}
2787

    
2788
static target_long monitor_get_msr (const struct MonitorDef *md, int val)
2789
{
2790
    CPUState *env = mon_get_cpu();
2791
    return env->msr;
2792
}
2793

    
2794
static target_long monitor_get_xer (const struct MonitorDef *md, int val)
2795
{
2796
    CPUState *env = mon_get_cpu();
2797
    return env->xer;
2798
}
2799

    
2800
static target_long monitor_get_decr (const struct MonitorDef *md, int val)
2801
{
2802
    CPUState *env = mon_get_cpu();
2803
    return cpu_ppc_load_decr(env);
2804
}
2805

    
2806
static target_long monitor_get_tbu (const struct MonitorDef *md, int val)
2807
{
2808
    CPUState *env = mon_get_cpu();
2809
    return cpu_ppc_load_tbu(env);
2810
}
2811

    
2812
static target_long monitor_get_tbl (const struct MonitorDef *md, int val)
2813
{
2814
    CPUState *env = mon_get_cpu();
2815
    return cpu_ppc_load_tbl(env);
2816
}
2817
#endif
2818

    
2819
#if defined(TARGET_SPARC)
2820
#ifndef TARGET_SPARC64
2821
static target_long monitor_get_psr (const struct MonitorDef *md, int val)
2822
{
2823
    CPUState *env = mon_get_cpu();
2824
    return GET_PSR(env);
2825
}
2826
#endif
2827

    
2828
static target_long monitor_get_reg(const struct MonitorDef *md, int val)
2829
{
2830
    CPUState *env = mon_get_cpu();
2831
    return env->regwptr[val];
2832
}
2833
#endif
2834

    
2835
static const MonitorDef monitor_defs[] = {
2836
#ifdef TARGET_I386
2837

    
2838
#define SEG(name, seg) \
2839
    { name, offsetof(CPUState, segs[seg].selector), NULL, MD_I32 },\
2840
    { name ".base", offsetof(CPUState, segs[seg].base) },\
2841
    { name ".limit", offsetof(CPUState, segs[seg].limit), NULL, MD_I32 },
2842

    
2843
    { "eax", offsetof(CPUState, regs[0]) },
2844
    { "ecx", offsetof(CPUState, regs[1]) },
2845
    { "edx", offsetof(CPUState, regs[2]) },
2846
    { "ebx", offsetof(CPUState, regs[3]) },
2847
    { "esp|sp", offsetof(CPUState, regs[4]) },
2848
    { "ebp|fp", offsetof(CPUState, regs[5]) },
2849
    { "esi", offsetof(CPUState, regs[6]) },
2850
    { "edi", offsetof(CPUState, regs[7]) },
2851
#ifdef TARGET_X86_64
2852
    { "r8", offsetof(CPUState, regs[8]) },
2853
    { "r9", offsetof(CPUState, regs[9]) },
2854
    { "r10", offsetof(CPUState, regs[10]) },
2855
    { "r11", offsetof(CPUState, regs[11]) },
2856
    { "r12", offsetof(CPUState, regs[12]) },
2857
    { "r13", offsetof(CPUState, regs[13]) },
2858
    { "r14", offsetof(CPUState, regs[14]) },
2859
    { "r15", offsetof(CPUState, regs[15]) },
2860
#endif
2861
    { "eflags", offsetof(CPUState, eflags) },
2862
    { "eip", offsetof(CPUState, eip) },
2863
    SEG("cs", R_CS)
2864
    SEG("ds", R_DS)
2865
    SEG("es", R_ES)
2866
    SEG("ss", R_SS)
2867
    SEG("fs", R_FS)
2868
    SEG("gs", R_GS)
2869
    { "pc", 0, monitor_get_pc, },
2870
#elif defined(TARGET_PPC)
2871
    /* General purpose registers */
2872
    { "r0", offsetof(CPUState, gpr[0]) },
2873
    { "r1", offsetof(CPUState, gpr[1]) },
2874
    { "r2", offsetof(CPUState, gpr[2]) },
2875
    { "r3", offsetof(CPUState, gpr[3]) },
2876
    { "r4", offsetof(CPUState, gpr[4]) },
2877
    { "r5", offsetof(CPUState, gpr[5]) },
2878
    { "r6", offsetof(CPUState, gpr[6]) },
2879
    { "r7", offsetof(CPUState, gpr[7]) },
2880
    { "r8", offsetof(CPUState, gpr[8]) },
2881
    { "r9", offsetof(CPUState, gpr[9]) },
2882
    { "r10", offsetof(CPUState, gpr[10]) },
2883
    { "r11", offsetof(CPUState, gpr[11]) },
2884
    { "r12", offsetof(CPUState, gpr[12]) },
2885
    { "r13", offsetof(CPUState, gpr[13]) },
2886
    { "r14", offsetof(CPUState, gpr[14]) },
2887
    { "r15", offsetof(CPUState, gpr[15]) },
2888
    { "r16", offsetof(CPUState, gpr[16]) },
2889
    { "r17", offsetof(CPUState, gpr[17]) },
2890
    { "r18", offsetof(CPUState, gpr[18]) },
2891
    { "r19", offsetof(CPUState, gpr[19]) },
2892
    { "r20", offsetof(CPUState, gpr[20]) },
2893
    { "r21", offsetof(CPUState, gpr[21]) },
2894
    { "r22", offsetof(CPUState, gpr[22]) },
2895
    { "r23", offsetof(CPUState, gpr[23]) },
2896
    { "r24", offsetof(CPUState, gpr[24]) },
2897
    { "r25", offsetof(CPUState, gpr[25]) },
2898
    { "r26", offsetof(CPUState, gpr[26]) },
2899
    { "r27", offsetof(CPUState, gpr[27]) },
2900
    { "r28", offsetof(CPUState, gpr[28]) },
2901
    { "r29", offsetof(CPUState, gpr[29]) },
2902
    { "r30", offsetof(CPUState, gpr[30]) },
2903
    { "r31", offsetof(CPUState, gpr[31]) },
2904
    /* Floating point registers */
2905
    { "f0", offsetof(CPUState, fpr[0]) },
2906
    { "f1", offsetof(CPUState, fpr[1]) },
2907
    { "f2", offsetof(CPUState, fpr[2]) },
2908
    { "f3", offsetof(CPUState, fpr[3]) },
2909
    { "f4", offsetof(CPUState, fpr[4]) },
2910
    { "f5", offsetof(CPUState, fpr[5]) },
2911
    { "f6", offsetof(CPUState, fpr[6]) },
2912
    { "f7", offsetof(CPUState, fpr[7]) },
2913
    { "f8", offsetof(CPUState, fpr[8]) },
2914
    { "f9", offsetof(CPUState, fpr[9]) },
2915
    { "f10", offsetof(CPUState, fpr[10]) },
2916
    { "f11", offsetof(CPUState, fpr[11]) },
2917
    { "f12", offsetof(CPUState, fpr[12]) },
2918
    { "f13", offsetof(CPUState, fpr[13]) },
2919
    { "f14", offsetof(CPUState, fpr[14]) },
2920
    { "f15", offsetof(CPUState, fpr[15]) },
2921
    { "f16", offsetof(CPUState, fpr[16]) },
2922
    { "f17", offsetof(CPUState, fpr[17]) },
2923
    { "f18", offsetof(CPUState, fpr[18]) },
2924
    { "f19", offsetof(CPUState, fpr[19]) },
2925
    { "f20", offsetof(CPUState, fpr[20]) },
2926
    { "f21", offsetof(CPUState, fpr[21]) },
2927
    { "f22", offsetof(CPUState, fpr[22]) },
2928
    { "f23", offsetof(CPUState, fpr[23]) },
2929
    { "f24", offsetof(CPUState, fpr[24]) },
2930
    { "f25", offsetof(CPUState, fpr[25]) },
2931
    { "f26", offsetof(CPUState, fpr[26]) },
2932
    { "f27", offsetof(CPUState, fpr[27]) },
2933
    { "f28", offsetof(CPUState, fpr[28]) },
2934
    { "f29", offsetof(CPUState, fpr[29]) },
2935
    { "f30", offsetof(CPUState, fpr[30]) },
2936
    { "f31", offsetof(CPUState, fpr[31]) },
2937
    { "fpscr", offsetof(CPUState, fpscr) },
2938
    /* Next instruction pointer */
2939
    { "nip|pc", offsetof(CPUState, nip) },
2940
    { "lr", offsetof(CPUState, lr) },
2941
    { "ctr", offsetof(CPUState, ctr) },
2942
    { "decr", 0, &monitor_get_decr, },
2943
    { "ccr", 0, &monitor_get_ccr, },
2944
    /* Machine state register */
2945
    { "msr", 0, &monitor_get_msr, },
2946
    { "xer", 0, &monitor_get_xer, },
2947
    { "tbu", 0, &monitor_get_tbu, },
2948
    { "tbl", 0, &monitor_get_tbl, },
2949
#if defined(TARGET_PPC64)
2950
    /* Address space register */
2951
    { "asr", offsetof(CPUState, asr) },
2952
#endif
2953
    /* Segment registers */
2954
    { "sdr1", offsetof(CPUState, sdr1) },
2955
    { "sr0", offsetof(CPUState, sr[0]) },
2956
    { "sr1", offsetof(CPUState, sr[1]) },
2957
    { "sr2", offsetof(CPUState, sr[2]) },
2958
    { "sr3", offsetof(CPUState, sr[3]) },
2959
    { "sr4", offsetof(CPUState, sr[4]) },
2960
    { "sr5", offsetof(CPUState, sr[5]) },
2961
    { "sr6", offsetof(CPUState, sr[6]) },
2962
    { "sr7", offsetof(CPUState, sr[7]) },
2963
    { "sr8", offsetof(CPUState, sr[8]) },
2964
    { "sr9", offsetof(CPUState, sr[9]) },
2965
    { "sr10", offsetof(CPUState, sr[10]) },
2966
    { "sr11", offsetof(CPUState, sr[11]) },
2967
    { "sr12", offsetof(CPUState, sr[12]) },
2968
    { "sr13", offsetof(CPUState, sr[13]) },
2969
    { "sr14", offsetof(CPUState, sr[14]) },
2970
    { "sr15", offsetof(CPUState, sr[15]) },
2971
    /* Too lazy to put BATs and SPRs ... */
2972
#elif defined(TARGET_SPARC)
2973
    { "g0", offsetof(CPUState, gregs[0]) },
2974
    { "g1", offsetof(CPUState, gregs[1]) },
2975
    { "g2", offsetof(CPUState, gregs[2]) },
2976
    { "g3", offsetof(CPUState, gregs[3]) },
2977
    { "g4", offsetof(CPUState, gregs[4]) },
2978
    { "g5", offsetof(CPUState, gregs[5]) },
2979
    { "g6", offsetof(CPUState, gregs[6]) },
2980
    { "g7", offsetof(CPUState, gregs[7]) },
2981
    { "o0", 0, monitor_get_reg },
2982
    { "o1", 1, monitor_get_reg },
2983
    { "o2", 2, monitor_get_reg },
2984
    { "o3", 3, monitor_get_reg },
2985
    { "o4", 4, monitor_get_reg },
2986
    { "o5", 5, monitor_get_reg },
2987
    { "o6", 6, monitor_get_reg },
2988
    { "o7", 7, monitor_get_reg },
2989
    { "l0", 8, monitor_get_reg },
2990
    { "l1", 9, monitor_get_reg },
2991
    { "l2", 10, monitor_get_reg },
2992
    { "l3", 11, monitor_get_reg },
2993
    { "l4", 12, monitor_get_reg },
2994
    { "l5", 13, monitor_get_reg },
2995
    { "l6", 14, monitor_get_reg },
2996
    { "l7", 15, monitor_get_reg },
2997
    { "i0", 16, monitor_get_reg },
2998
    { "i1", 17, monitor_get_reg },
2999
    { "i2", 18, monitor_get_reg },
3000
    { "i3", 19, monitor_get_reg },
3001
    { "i4", 20, monitor_get_reg },
3002
    { "i5", 21, monitor_get_reg },
3003
    { "i6", 22, monitor_get_reg },
3004
    { "i7", 23, monitor_get_reg },
3005
    { "pc", offsetof(CPUState, pc) },
3006
    { "npc", offsetof(CPUState, npc) },
3007
    { "y", offsetof(CPUState, y) },
3008
#ifndef TARGET_SPARC64
3009
    { "psr", 0, &monitor_get_psr, },
3010
    { "wim", offsetof(CPUState, wim) },
3011
#endif
3012
    { "tbr", offsetof(CPUState, tbr) },
3013
    { "fsr", offsetof(CPUState, fsr) },
3014
    { "f0", offsetof(CPUState, fpr[0]) },
3015
    { "f1", offsetof(CPUState, fpr[1]) },
3016
    { "f2", offsetof(CPUState, fpr[2]) },
3017
    { "f3", offsetof(CPUState, fpr[3]) },
3018
    { "f4", offsetof(CPUState, fpr[4]) },
3019
    { "f5", offsetof(CPUState, fpr[5]) },
3020
    { "f6", offsetof(CPUState, fpr[6]) },
3021
    { "f7", offsetof(CPUState, fpr[7]) },
3022
    { "f8", offsetof(CPUState, fpr[8]) },
3023
    { "f9", offsetof(CPUState, fpr[9]) },
3024
    { "f10", offsetof(CPUState, fpr[10]) },
3025
    { "f11", offsetof(CPUState, fpr[11]) },
3026
    { "f12", offsetof(CPUState, fpr[12]) },
3027
    { "f13", offsetof(CPUState, fpr[13]) },
3028
    { "f14", offsetof(CPUState, fpr[14]) },
3029
    { "f15", offsetof(CPUState, fpr[15]) },
3030
    { "f16", offsetof(CPUState, fpr[16]) },
3031
    { "f17", offsetof(CPUState, fpr[17]) },
3032
    { "f18", offsetof(CPUState, fpr[18]) },
3033
    { "f19", offsetof(CPUState, fpr[19]) },
3034
    { "f20", offsetof(CPUState, fpr[20]) },
3035
    { "f21", offsetof(CPUState, fpr[21]) },
3036
    { "f22", offsetof(CPUState, fpr[22]) },
3037
    { "f23", offsetof(CPUState, fpr[23]) },
3038
    { "f24", offsetof(CPUState, fpr[24]) },
3039
    { "f25", offsetof(CPUState, fpr[25]) },
3040
    { "f26", offsetof(CPUState, fpr[26]) },
3041
    { "f27", offsetof(CPUState, fpr[27]) },
3042
    { "f28", offsetof(CPUState, fpr[28]) },
3043
    { "f29", offsetof(CPUState, fpr[29]) },
3044
    { "f30", offsetof(CPUState, fpr[30]) },
3045
    { "f31", offsetof(CPUState, fpr[31]) },
3046
#ifdef TARGET_SPARC64
3047
    { "f32", offsetof(CPUState, fpr[32]) },
3048
    { "f34", offsetof(CPUState, fpr[34]) },
3049
    { "f36", offsetof(CPUState, fpr[36]) },
3050
    { "f38", offsetof(CPUState, fpr[38]) },
3051
    { "f40", offsetof(CPUState, fpr[40]) },
3052
    { "f42", offsetof(CPUState, fpr[42]) },
3053
    { "f44", offsetof(CPUState, fpr[44]) },
3054
    { "f46", offsetof(CPUState, fpr[46]) },
3055
    { "f48", offsetof(CPUState, fpr[48]) },
3056
    { "f50", offsetof(CPUState, fpr[50]) },
3057
    { "f52", offsetof(CPUState, fpr[52]) },
3058
    { "f54", offsetof(CPUState, fpr[54]) },
3059
    { "f56", offsetof(CPUState, fpr[56]) },
3060
    { "f58", offsetof(CPUState, fpr[58]) },
3061
    { "f60", offsetof(CPUState, fpr[60]) },
3062
    { "f62", offsetof(CPUState, fpr[62]) },
3063
    { "asi", offsetof(CPUState, asi) },
3064
    { "pstate", offsetof(CPUState, pstate) },
3065
    { "cansave", offsetof(CPUState, cansave) },
3066
    { "canrestore", offsetof(CPUState, canrestore) },
3067
    { "otherwin", offsetof(CPUState, otherwin) },
3068
    { "wstate", offsetof(CPUState, wstate) },
3069
    { "cleanwin", offsetof(CPUState, cleanwin) },
3070
    { "fprs", offsetof(CPUState, fprs) },
3071
#endif
3072
#endif
3073
    { NULL },
3074
};
3075

    
3076
static void expr_error(Monitor *mon, const char *msg)
3077
{
3078
    monitor_printf(mon, "%s\n", msg);
3079
    longjmp(expr_env, 1);
3080
}
3081

    
3082
/* return 0 if OK, -1 if not found */
3083
static int get_monitor_def(target_long *pval, const char *name)
3084
{
3085
    const MonitorDef *md;
3086
    void *ptr;
3087

    
3088
    for(md = monitor_defs; md->name != NULL; md++) {
3089
        if (compare_cmd(name, md->name)) {
3090
            if (md->get_value) {
3091
                *pval = md->get_value(md, md->offset);
3092
            } else {
3093
                CPUState *env = mon_get_cpu();
3094
                ptr = (uint8_t *)env + md->offset;
3095
                switch(md->type) {
3096
                case MD_I32:
3097
                    *pval = *(int32_t *)ptr;
3098
                    break;
3099
                case MD_TLONG:
3100
                    *pval = *(target_long *)ptr;
3101
                    break;
3102
                default:
3103
                    *pval = 0;
3104
                    break;
3105
                }
3106
            }
3107
            return 0;
3108
        }
3109
    }
3110
    return -1;
3111
}
3112

    
3113
static void next(void)
3114
{
3115
    if (*pch != '\0') {
3116
        pch++;
3117
        while (qemu_isspace(*pch))
3118
            pch++;
3119
    }
3120
}
3121

    
3122
static int64_t expr_sum(Monitor *mon);
3123

    
3124
static int64_t expr_unary(Monitor *mon)
3125
{
3126
    int64_t n;
3127
    char *p;
3128
    int ret;
3129

    
3130
    switch(*pch) {
3131
    case '+':
3132
        next();
3133
        n = expr_unary(mon);
3134
        break;
3135
    case '-':
3136
        next();
3137
        n = -expr_unary(mon);
3138
        break;
3139
    case '~':
3140
        next();
3141
        n = ~expr_unary(mon);
3142
        break;
3143
    case '(':
3144
        next();
3145
        n = expr_sum(mon);
3146
        if (*pch != ')') {
3147
            expr_error(mon, "')' expected");
3148
        }
3149
        next();
3150
        break;
3151
    case '\'':
3152
        pch++;
3153
        if (*pch == '\0')
3154
            expr_error(mon, "character constant expected");
3155
        n = *pch;
3156
        pch++;
3157
        if (*pch != '\'')
3158
            expr_error(mon, "missing terminating \' character");
3159
        next();
3160
        break;
3161
    case '$':
3162
        {
3163
            char buf[128], *q;
3164
            target_long reg=0;
3165

    
3166
            pch++;
3167
            q = buf;
3168
            while ((*pch >= 'a' && *pch <= 'z') ||
3169
                   (*pch >= 'A' && *pch <= 'Z') ||
3170
                   (*pch >= '0' && *pch <= '9') ||
3171
                   *pch == '_' || *pch == '.') {
3172
                if ((q - buf) < sizeof(buf) - 1)
3173
                    *q++ = *pch;
3174
                pch++;
3175
            }
3176
            while (qemu_isspace(*pch))
3177
                pch++;
3178
            *q = 0;
3179
            ret = get_monitor_def(&reg, buf);
3180
            if (ret < 0)
3181
                expr_error(mon, "unknown register");
3182
            n = reg;
3183
        }
3184
        break;
3185
    case '\0':
3186
        expr_error(mon, "unexpected end of expression");
3187
        n = 0;
3188
        break;
3189
    default:
3190
#if TARGET_PHYS_ADDR_BITS > 32
3191
        n = strtoull(pch, &p, 0);
3192
#else
3193
        n = strtoul(pch, &p, 0);
3194
#endif
3195
        if (pch == p) {
3196
            expr_error(mon, "invalid char in expression");
3197
        }
3198
        pch = p;
3199
        while (qemu_isspace(*pch))
3200
            pch++;
3201
        break;
3202
    }
3203
    return n;
3204
}
3205

    
3206

    
3207
static int64_t expr_prod(Monitor *mon)
3208
{
3209
    int64_t val, val2;
3210
    int op;
3211

    
3212
    val = expr_unary(mon);
3213
    for(;;) {
3214
        op = *pch;
3215
        if (op != '*' && op != '/' && op != '%')
3216
            break;
3217
        next();
3218
        val2 = expr_unary(mon);
3219
        switch(op) {
3220
        default:
3221
        case '*':
3222
            val *= val2;
3223
            break;
3224
        case '/':
3225
        case '%':
3226
            if (val2 == 0)
3227
                expr_error(mon, "division by zero");
3228
            if (op == '/')
3229
                val /= val2;
3230
            else
3231
                val %= val2;
3232
            break;
3233
        }
3234
    }
3235
    return val;
3236
}
3237

    
3238
static int64_t expr_logic(Monitor *mon)
3239
{
3240
    int64_t val, val2;
3241
    int op;
3242

    
3243
    val = expr_prod(mon);
3244
    for(;;) {
3245
        op = *pch;
3246
        if (op != '&' && op != '|' && op != '^')
3247
            break;
3248
        next();
3249
        val2 = expr_prod(mon);
3250
        switch(op) {
3251
        default:
3252
        case '&':
3253
            val &= val2;
3254
            break;
3255
        case '|':
3256
            val |= val2;
3257
            break;
3258
        case '^':
3259
            val ^= val2;
3260
            break;
3261
        }
3262
    }
3263
    return val;
3264
}
3265

    
3266
static int64_t expr_sum(Monitor *mon)
3267
{
3268
    int64_t val, val2;
3269
    int op;
3270

    
3271
    val = expr_logic(mon);
3272
    for(;;) {
3273
        op = *pch;
3274
        if (op != '+' && op != '-')
3275
            break;
3276
        next();
3277
        val2 = expr_logic(mon);
3278
        if (op == '+')
3279
            val += val2;
3280
        else
3281
            val -= val2;
3282
    }
3283
    return val;
3284
}
3285

    
3286
static int get_expr(Monitor *mon, int64_t *pval, const char **pp)
3287
{
3288
    pch = *pp;
3289
    if (setjmp(expr_env)) {
3290
        *pp = pch;
3291
        return -1;
3292
    }
3293
    while (qemu_isspace(*pch))
3294
        pch++;
3295
    *pval = expr_sum(mon);
3296
    *pp = pch;
3297
    return 0;
3298
}
3299

    
3300
static int get_str(char *buf, int buf_size, const char **pp)
3301
{
3302
    const char *p;
3303
    char *q;
3304
    int c;
3305

    
3306
    q = buf;
3307
    p = *pp;
3308
    while (qemu_isspace(*p))
3309
        p++;
3310
    if (*p == '\0') {
3311
    fail:
3312
        *q = '\0';
3313
        *pp = p;
3314
        return -1;
3315
    }
3316
    if (*p == '\"') {
3317
        p++;
3318
        while (*p != '\0' && *p != '\"') {
3319
            if (*p == '\\') {
3320
                p++;
3321
                c = *p++;
3322
                switch(c) {
3323
                case 'n':
3324
                    c = '\n';
3325
                    break;
3326
                case 'r':
3327
                    c = '\r';
3328
                    break;
3329
                case '\\':
3330
                case '\'':
3331
                case '\"':
3332
                    break;
3333
                default:
3334
                    qemu_printf("unsupported escape code: '\\%c'\n", c);
3335
                    goto fail;
3336
                }
3337
                if ((q - buf) < buf_size - 1) {
3338
                    *q++ = c;
3339
                }
3340
            } else {
3341
                if ((q - buf) < buf_size - 1) {
3342
                    *q++ = *p;
3343
                }
3344
                p++;
3345
            }
3346
        }
3347
        if (*p != '\"') {
3348
            qemu_printf("unterminated string\n");
3349
            goto fail;
3350
        }
3351
        p++;
3352
    } else {
3353
        while (*p != '\0' && !qemu_isspace(*p)) {
3354
            if ((q - buf) < buf_size - 1) {
3355
                *q++ = *p;
3356
            }
3357
            p++;
3358
        }
3359
    }
3360
    *q = '\0';
3361
    *pp = p;
3362
    return 0;
3363
}
3364

    
3365
/*
3366
 * Store the command-name in cmdname, and return a pointer to
3367
 * the remaining of the command string.
3368
 */
3369
static const char *get_command_name(const char *cmdline,
3370
                                    char *cmdname, size_t nlen)
3371
{
3372
    size_t len;
3373
    const char *p, *pstart;
3374

    
3375
    p = cmdline;
3376
    while (qemu_isspace(*p))
3377
        p++;
3378
    if (*p == '\0')
3379
        return NULL;
3380
    pstart = p;
3381
    while (*p != '\0' && *p != '/' && !qemu_isspace(*p))
3382
        p++;
3383
    len = p - pstart;
3384
    if (len > nlen - 1)
3385
        len = nlen - 1;
3386
    memcpy(cmdname, pstart, len);
3387
    cmdname[len] = '\0';
3388
    return p;
3389
}
3390

    
3391
/**
3392
 * Read key of 'type' into 'key' and return the current
3393
 * 'type' pointer.
3394
 */
3395
static char *key_get_info(const char *type, char **key)
3396
{
3397
    size_t len;
3398
    char *p, *str;
3399

    
3400
    if (*type == ',')
3401
        type++;
3402

    
3403
    p = strchr(type, ':');
3404
    if (!p) {
3405
        *key = NULL;
3406
        return NULL;
3407
    }
3408
    len = p - type;
3409

    
3410
    str = qemu_malloc(len + 1);
3411
    memcpy(str, type, len);
3412
    str[len] = '\0';
3413

    
3414
    *key = str;
3415
    return ++p;
3416
}
3417

    
3418
static int default_fmt_format = 'x';
3419
static int default_fmt_size = 4;
3420

    
3421
#define MAX_ARGS 16
3422

    
3423
static int is_valid_option(const char *c, const char *typestr)
3424
{
3425
    char option[3];
3426
  
3427
    option[0] = '-';
3428
    option[1] = *c;
3429
    option[2] = '\0';
3430
  
3431
    typestr = strstr(typestr, option);
3432
    return (typestr != NULL);
3433
}
3434

    
3435
static const mon_cmd_t *monitor_find_command(const char *cmdname)
3436
{
3437
    const mon_cmd_t *cmd;
3438

    
3439
    for (cmd = mon_cmds; cmd->name != NULL; cmd++) {
3440
        if (compare_cmd(cmdname, cmd->name)) {
3441
            return cmd;
3442
        }
3443
    }
3444

    
3445
    return NULL;
3446
}
3447

    
3448
static const mon_cmd_t *monitor_parse_command(Monitor *mon,
3449
                                              const char *cmdline,
3450
                                              QDict *qdict)
3451
{
3452
    const char *p, *typestr;
3453
    int c;
3454
    const mon_cmd_t *cmd;
3455
    char cmdname[256];
3456
    char buf[1024];
3457
    char *key;
3458

    
3459
#ifdef DEBUG
3460
    monitor_printf(mon, "command='%s'\n", cmdline);
3461
#endif
3462

    
3463
    /* extract the command name */
3464
    p = get_command_name(cmdline, cmdname, sizeof(cmdname));
3465
    if (!p)
3466
        return NULL;
3467

    
3468
    cmd = monitor_find_command(cmdname);
3469
    if (!cmd) {
3470
        monitor_printf(mon, "unknown command: '%s'\n", cmdname);
3471
        return NULL;
3472
    }
3473

    
3474
    /* parse the parameters */
3475
    typestr = cmd->args_type;
3476
    for(;;) {
3477
        typestr = key_get_info(typestr, &key);
3478
        if (!typestr)
3479
            break;
3480
        c = *typestr;
3481
        typestr++;
3482
        switch(c) {
3483
        case 'F':
3484
        case 'B':
3485
        case 's':
3486
            {
3487
                int ret;
3488

    
3489
                while (qemu_isspace(*p))
3490
                    p++;
3491
                if (*typestr == '?') {
3492
                    typestr++;
3493
                    if (*p == '\0') {
3494
                        /* no optional string: NULL argument */
3495
                        break;
3496
                    }
3497
                }
3498
                ret = get_str(buf, sizeof(buf), &p);
3499
                if (ret < 0) {
3500
                    switch(c) {
3501
                    case 'F':
3502
                        monitor_printf(mon, "%s: filename expected\n",
3503
                                       cmdname);
3504
                        break;
3505
                    case 'B':
3506
                        monitor_printf(mon, "%s: block device name expected\n",
3507
                                       cmdname);
3508
                        break;
3509
                    default:
3510
                        monitor_printf(mon, "%s: string expected\n", cmdname);
3511
                        break;
3512
                    }
3513
                    goto fail;
3514
                }
3515
                qdict_put(qdict, key, qstring_from_str(buf));
3516
            }
3517
            break;
3518
        case '/':
3519
            {
3520
                int count, format, size;
3521

    
3522
                while (qemu_isspace(*p))
3523
                    p++;
3524
                if (*p == '/') {
3525
                    /* format found */
3526
                    p++;
3527
                    count = 1;
3528
                    if (qemu_isdigit(*p)) {
3529
                        count = 0;
3530
                        while (qemu_isdigit(*p)) {
3531
                            count = count * 10 + (*p - '0');
3532
                            p++;
3533
                        }
3534
                    }
3535
                    size = -1;
3536
                    format = -1;
3537
                    for(;;) {
3538
                        switch(*p) {
3539
                        case 'o':
3540
                        case 'd':
3541
                        case 'u':
3542
                        case 'x':
3543
                        case 'i':
3544
                        case 'c':
3545
                            format = *p++;
3546
                            break;
3547
                        case 'b':
3548
                            size = 1;
3549
                            p++;
3550
                            break;
3551
                        case 'h':
3552
                            size = 2;
3553
                            p++;
3554
                            break;
3555
                        case 'w':
3556
                            size = 4;
3557
                            p++;
3558
                            break;
3559
                        case 'g':
3560
                        case 'L':
3561
                            size = 8;
3562
                            p++;
3563
                            break;
3564
                        default:
3565
                            goto next;
3566
                        }
3567
                    }
3568
                next:
3569
                    if (*p != '\0' && !qemu_isspace(*p)) {
3570
                        monitor_printf(mon, "invalid char in format: '%c'\n",
3571
                                       *p);
3572
                        goto fail;
3573
                    }
3574
                    if (format < 0)
3575
                        format = default_fmt_format;
3576
                    if (format != 'i') {
3577
                        /* for 'i', not specifying a size gives -1 as size */
3578
                        if (size < 0)
3579
                            size = default_fmt_size;
3580
                        default_fmt_size = size;
3581
                    }
3582
                    default_fmt_format = format;
3583
                } else {
3584
                    count = 1;
3585
                    format = default_fmt_format;
3586
                    if (format != 'i') {
3587
                        size = default_fmt_size;
3588
                    } else {
3589
                        size = -1;
3590
                    }
3591
                }
3592
                qdict_put(qdict, "count", qint_from_int(count));
3593
                qdict_put(qdict, "format", qint_from_int(format));
3594
                qdict_put(qdict, "size", qint_from_int(size));
3595
            }
3596
            break;
3597
        case 'i':
3598
        case 'l':
3599
        case 'M':
3600
            {
3601
                int64_t val;
3602

    
3603
                while (qemu_isspace(*p))
3604
                    p++;
3605
                if (*typestr == '?' || *typestr == '.') {
3606
                    if (*typestr == '?') {
3607
                        if (*p == '\0') {
3608
                            typestr++;
3609
                            break;
3610
                        }
3611
                    } else {
3612
                        if (*p == '.') {
3613
                            p++;
3614
                            while (qemu_isspace(*p))
3615
                                p++;
3616
                        } else {
3617
                            typestr++;
3618
                            break;
3619
                        }
3620
                    }
3621
                    typestr++;
3622
                }
3623
                if (get_expr(mon, &val, &p))
3624
                    goto fail;
3625
                /* Check if 'i' is greater than 32-bit */
3626
                if ((c == 'i') && ((val >> 32) & 0xffffffff)) {
3627
                    monitor_printf(mon, "\'%s\' has failed: ", cmdname);
3628
                    monitor_printf(mon, "integer is for 32-bit values\n");
3629
                    goto fail;
3630
                } else if (c == 'M') {
3631
                    val <<= 20;
3632
                }
3633
                qdict_put(qdict, key, qint_from_int(val));
3634
            }
3635
            break;
3636
        case '-':
3637
            {
3638
                const char *tmp = p;
3639
                int has_option, skip_key = 0;
3640
                /* option */
3641

    
3642
                c = *typestr++;
3643
                if (c == '\0')
3644
                    goto bad_type;
3645
                while (qemu_isspace(*p))
3646
                    p++;
3647
                has_option = 0;
3648
                if (*p == '-') {
3649
                    p++;
3650
                    if(c != *p) {
3651
                        if(!is_valid_option(p, typestr)) {
3652
                  
3653
                            monitor_printf(mon, "%s: unsupported option -%c\n",
3654
                                           cmdname, *p);
3655
                            goto fail;
3656
                        } else {
3657
                            skip_key = 1;
3658
                        }
3659
                    }
3660
                    if(skip_key) {
3661
                        p = tmp;
3662
                    } else {
3663
                        p++;
3664
                        has_option = 1;
3665
                    }
3666
                }
3667
                qdict_put(qdict, key, qint_from_int(has_option));
3668
            }
3669
            break;
3670
        default:
3671
        bad_type:
3672
            monitor_printf(mon, "%s: unknown type '%c'\n", cmdname, c);
3673
            goto fail;
3674
        }
3675
        qemu_free(key);
3676
        key = NULL;
3677
    }
3678
    /* check that all arguments were parsed */
3679
    while (qemu_isspace(*p))
3680
        p++;
3681
    if (*p != '\0') {
3682
        monitor_printf(mon, "%s: extraneous characters at the end of line\n",
3683
                       cmdname);
3684
        goto fail;
3685
    }
3686

    
3687
    return cmd;
3688

    
3689
fail:
3690
    qemu_free(key);
3691
    return NULL;
3692
}
3693

    
3694
static void monitor_print_error(Monitor *mon)
3695
{
3696
    qerror_print(mon->error);
3697
    QDECREF(mon->error);
3698
    mon->error = NULL;
3699
}
3700

    
3701
static int is_async_return(const QObject *data)
3702
{
3703
    if (data && qobject_type(data) == QTYPE_QDICT) {
3704
        return qdict_haskey(qobject_to_qdict(data), "__mon_async");
3705
    }
3706

    
3707
    return 0;
3708
}
3709

    
3710
static void monitor_call_handler(Monitor *mon, const mon_cmd_t *cmd,
3711
                                 const QDict *params)
3712
{
3713
    QObject *data = NULL;
3714

    
3715
    cmd->mhandler.cmd_new(mon, params, &data);
3716

    
3717
    if (is_async_return(data)) {
3718
        /*
3719
         * Asynchronous commands have no initial return data but they can
3720
         * generate errors.  Data is returned via the async completion handler.
3721
         */
3722
        if (monitor_ctrl_mode(mon) && monitor_has_error(mon)) {
3723
            monitor_protocol_emitter(mon, NULL);
3724
        }
3725
    } else if (monitor_ctrl_mode(mon)) {
3726
        /* Monitor Protocol */
3727
        monitor_protocol_emitter(mon, data);
3728
    } else {
3729
        /* User Protocol */
3730
         if (data)
3731
            cmd->user_print(mon, data);
3732
    }
3733

    
3734
    qobject_decref(data);
3735
}
3736

    
3737
static void handle_user_command(Monitor *mon, const char *cmdline)
3738
{
3739
    QDict *qdict;
3740
    const mon_cmd_t *cmd;
3741

    
3742
    qdict = qdict_new();
3743

    
3744
    cmd = monitor_parse_command(mon, cmdline, qdict);
3745
    if (!cmd)
3746
        goto out;
3747

    
3748
    qemu_errors_to_mon(mon);
3749

    
3750
    if (monitor_handler_is_async(cmd)) {
3751
        user_async_cmd_handler(mon, cmd, qdict);
3752
    } else if (monitor_handler_ported(cmd)) {
3753
        monitor_call_handler(mon, cmd, qdict);
3754
    } else {
3755
        cmd->mhandler.cmd(mon, qdict);
3756
    }
3757

    
3758
    if (monitor_has_error(mon))
3759
        monitor_print_error(mon);
3760

    
3761
    qemu_errors_to_previous();
3762

    
3763
out:
3764
    QDECREF(qdict);
3765
}
3766

    
3767
static void cmd_completion(const char *name, const char *list)
3768
{
3769
    const char *p, *pstart;
3770
    char cmd[128];
3771
    int len;
3772

    
3773
    p = list;
3774
    for(;;) {
3775
        pstart = p;
3776
        p = strchr(p, '|');
3777
        if (!p)
3778
            p = pstart + strlen(pstart);
3779
        len = p - pstart;
3780
        if (len > sizeof(cmd) - 2)
3781
            len = sizeof(cmd) - 2;
3782
        memcpy(cmd, pstart, len);
3783
        cmd[len] = '\0';
3784
        if (name[0] == '\0' || !strncmp(name, cmd, strlen(name))) {
3785
            readline_add_completion(cur_mon->rs, cmd);
3786
        }
3787
        if (*p == '\0')
3788
            break;
3789
        p++;
3790
    }
3791
}
3792

    
3793
static void file_completion(const char *input)
3794
{
3795
    DIR *ffs;
3796
    struct dirent *d;
3797
    char path[1024];
3798
    char file[1024], file_prefix[1024];
3799
    int input_path_len;
3800
    const char *p;
3801

    
3802
    p = strrchr(input, '/');
3803
    if (!p) {
3804
        input_path_len = 0;
3805
        pstrcpy(file_prefix, sizeof(file_prefix), input);
3806
        pstrcpy(path, sizeof(path), ".");
3807
    } else {
3808
        input_path_len = p - input + 1;
3809
        memcpy(path, input, input_path_len);
3810
        if (input_path_len > sizeof(path) - 1)
3811
            input_path_len = sizeof(path) - 1;
3812
        path[input_path_len] = '\0';
3813
        pstrcpy(file_prefix, sizeof(file_prefix), p + 1);
3814
    }
3815
#ifdef DEBUG_COMPLETION
3816
    monitor_printf(cur_mon, "input='%s' path='%s' prefix='%s'\n",
3817
                   input, path, file_prefix);
3818
#endif
3819
    ffs = opendir(path);
3820
    if (!ffs)
3821
        return;
3822
    for(;;) {
3823
        struct stat sb;
3824
        d = readdir(ffs);
3825
        if (!d)
3826
            break;
3827
        if (strstart(d->d_name, file_prefix, NULL)) {
3828
            memcpy(file, input, input_path_len);
3829
            if (input_path_len < sizeof(file))
3830
                pstrcpy(file + input_path_len, sizeof(file) - input_path_len,
3831
                        d->d_name);
3832
            /* stat the file to find out if it's a directory.
3833
             * In that case add a slash to speed up typing long paths
3834
             */
3835
            stat(file, &sb);
3836
            if(S_ISDIR(sb.st_mode))
3837
                pstrcat(file, sizeof(file), "/");
3838
            readline_add_completion(cur_mon->rs, file);
3839
        }
3840
    }
3841
    closedir(ffs);
3842
}
3843

    
3844
static void block_completion_it(void *opaque, BlockDriverState *bs)
3845
{
3846
    const char *name = bdrv_get_device_name(bs);
3847
    const char *input = opaque;
3848

    
3849
    if (input[0] == '\0' ||
3850
        !strncmp(name, (char *)input, strlen(input))) {
3851
        readline_add_completion(cur_mon->rs, name);
3852
    }
3853
}
3854

    
3855
/* NOTE: this parser is an approximate form of the real command parser */
3856
static void parse_cmdline(const char *cmdline,
3857
                         int *pnb_args, char **args)
3858
{
3859
    const char *p;
3860
    int nb_args, ret;
3861
    char buf[1024];
3862

    
3863
    p = cmdline;
3864
    nb_args = 0;
3865
    for(;;) {
3866
        while (qemu_isspace(*p))
3867
            p++;
3868
        if (*p == '\0')
3869
            break;
3870
        if (nb_args >= MAX_ARGS)
3871
            break;
3872
        ret = get_str(buf, sizeof(buf), &p);
3873
        args[nb_args] = qemu_strdup(buf);
3874
        nb_args++;
3875
        if (ret < 0)
3876
            break;
3877
    }
3878
    *pnb_args = nb_args;
3879
}
3880

    
3881
static const char *next_arg_type(const char *typestr)
3882
{
3883
    const char *p = strchr(typestr, ':');
3884
    return (p != NULL ? ++p : typestr);
3885
}
3886

    
3887
static void monitor_find_completion(const char *cmdline)
3888
{
3889
    const char *cmdname;
3890
    char *args[MAX_ARGS];
3891
    int nb_args, i, len;
3892
    const char *ptype, *str;
3893
    const mon_cmd_t *cmd;
3894
    const KeyDef *key;
3895

    
3896
    parse_cmdline(cmdline, &nb_args, args);
3897
#ifdef DEBUG_COMPLETION
3898
    for(i = 0; i < nb_args; i++) {
3899
        monitor_printf(cur_mon, "arg%d = '%s'\n", i, (char *)args[i]);
3900
    }
3901
#endif
3902

    
3903
    /* if the line ends with a space, it means we want to complete the
3904
       next arg */
3905
    len = strlen(cmdline);
3906
    if (len > 0 && qemu_isspace(cmdline[len - 1])) {
3907
        if (nb_args >= MAX_ARGS)
3908
            return;
3909
        args[nb_args++] = qemu_strdup("");
3910
    }
3911
    if (nb_args <= 1) {
3912
        /* command completion */
3913
        if (nb_args == 0)
3914
            cmdname = "";
3915
        else
3916
            cmdname = args[0];
3917
        readline_set_completion_index(cur_mon->rs, strlen(cmdname));
3918
        for(cmd = mon_cmds; cmd->name != NULL; cmd++) {
3919
            cmd_completion(cmdname, cmd->name);
3920
        }
3921
    } else {
3922
        /* find the command */
3923
        for(cmd = mon_cmds; cmd->name != NULL; cmd++) {
3924
            if (compare_cmd(args[0], cmd->name))
3925
                goto found;
3926
        }
3927
        return;
3928
    found:
3929
        ptype = next_arg_type(cmd->args_type);
3930
        for(i = 0; i < nb_args - 2; i++) {
3931
            if (*ptype != '\0') {
3932
                ptype = next_arg_type(ptype);
3933
                while (*ptype == '?')
3934
                    ptype = next_arg_type(ptype);
3935
            }
3936
        }
3937
        str = args[nb_args - 1];
3938
        if (*ptype == '-' && ptype[1] != '\0') {
3939
            ptype += 2;
3940
        }
3941
        switch(*ptype) {
3942
        case 'F':
3943
            /* file completion */
3944
            readline_set_completion_index(cur_mon->rs, strlen(str));
3945
            file_completion(str);
3946
            break;
3947
        case 'B':
3948
            /* block device name completion */
3949
            readline_set_completion_index(cur_mon->rs, strlen(str));
3950
            bdrv_iterate(block_completion_it, (void *)str);
3951
            break;
3952
        case 's':
3953
            /* XXX: more generic ? */
3954
            if (!strcmp(cmd->name, "info")) {
3955
                readline_set_completion_index(cur_mon->rs, strlen(str));
3956
                for(cmd = info_cmds; cmd->name != NULL; cmd++) {
3957
                    cmd_completion(str, cmd->name);
3958
                }
3959
            } else if (!strcmp(cmd->name, "sendkey")) {
3960
                char *sep = strrchr(str, '-');
3961
                if (sep)
3962
                    str = sep + 1;
3963
                readline_set_completion_index(cur_mon->rs, strlen(str));
3964
                for(key = key_defs; key->name != NULL; key++) {
3965
                    cmd_completion(str, key->name);
3966
                }
3967
            } else if (!strcmp(cmd->name, "help|?")) {
3968
                readline_set_completion_index(cur_mon->rs, strlen(str));
3969
                for (cmd = mon_cmds; cmd->name != NULL; cmd++) {
3970
                    cmd_completion(str, cmd->name);
3971
                }
3972
            }
3973
            break;
3974
        default:
3975
            break;
3976
        }
3977
    }
3978
    for(i = 0; i < nb_args; i++)
3979
        qemu_free(args[i]);
3980
}
3981

    
3982
static int monitor_can_read(void *opaque)
3983
{
3984
    Monitor *mon = opaque;
3985

    
3986
    return (mon->suspend_cnt == 0) ? 1 : 0;
3987
}
3988

    
3989
typedef struct CmdArgs {
3990
    QString *name;
3991
    int type;
3992
    int flag;
3993
    int optional;
3994
} CmdArgs;
3995

    
3996
static int check_opt(const CmdArgs *cmd_args, const char *name, QDict *args)
3997
{
3998
    if (!cmd_args->optional) {
3999
        qemu_error_new(QERR_MISSING_PARAMETER, name);
4000
        return -1;
4001
    }
4002

    
4003
    if (cmd_args->type == '-') {
4004
        /* handlers expect a value, they need to be changed */
4005
        qdict_put(args, name, qint_from_int(0));
4006
    }
4007

    
4008
    return 0;
4009
}
4010

    
4011
static int check_arg(const CmdArgs *cmd_args, QDict *args)
4012
{
4013
    QObject *value;
4014
    const char *name;
4015

    
4016
    name = qstring_get_str(cmd_args->name);
4017

    
4018
    if (!args) {
4019
        return check_opt(cmd_args, name, args);
4020
    }
4021

    
4022
    value = qdict_get(args, name);
4023
    if (!value) {
4024
        return check_opt(cmd_args, name, args);
4025
    }
4026

    
4027
    switch (cmd_args->type) {
4028
        case 'F':
4029
        case 'B':
4030
        case 's':
4031
            if (qobject_type(value) != QTYPE_QSTRING) {
4032
                qemu_error_new(QERR_INVALID_PARAMETER_TYPE, name, "string");
4033
                return -1;
4034
            }
4035
            break;
4036
        case '/': {
4037
            int i;
4038
            const char *keys[] = { "count", "format", "size", NULL };
4039

    
4040
            for (i = 0; keys[i]; i++) {
4041
                QObject *obj = qdict_get(args, keys[i]);
4042
                if (!obj) {
4043
                    qemu_error_new(QERR_MISSING_PARAMETER, name);
4044
                    return -1;
4045
                }
4046
                if (qobject_type(obj) != QTYPE_QINT) {
4047
                    qemu_error_new(QERR_INVALID_PARAMETER_TYPE, name, "int");
4048
                    return -1;
4049
                }
4050
            }
4051
            break;
4052
        }
4053
        case 'i':
4054
        case 'l':
4055
        case 'M':
4056
            if (qobject_type(value) != QTYPE_QINT) {
4057
                qemu_error_new(QERR_INVALID_PARAMETER_TYPE, name, "int");
4058
                return -1;
4059
            }
4060
            break;
4061
        case '-':
4062
            if (qobject_type(value) != QTYPE_QINT &&
4063
                qobject_type(value) != QTYPE_QBOOL) {
4064
                qemu_error_new(QERR_INVALID_PARAMETER_TYPE, name, "bool");
4065
                return -1;
4066
            }
4067
            if (qobject_type(value) == QTYPE_QBOOL) {
4068
                /* handlers expect a QInt, they need to be changed */
4069
                qdict_put(args, name,
4070
                         qint_from_int(qbool_get_int(qobject_to_qbool(value))));
4071
            }
4072
            break;
4073
        default:
4074
            /* impossible */
4075
            abort();
4076
    }
4077

    
4078
    return 0;
4079
}
4080

    
4081
static void cmd_args_init(CmdArgs *cmd_args)
4082
{
4083
    cmd_args->name = qstring_new();
4084
    cmd_args->type = cmd_args->flag = cmd_args->optional = 0;
4085
}
4086

    
4087
/*
4088
 * This is not trivial, we have to parse Monitor command's argument
4089
 * type syntax to be able to check the arguments provided by clients.
4090
 *
4091
 * In the near future we will be using an array for that and will be
4092
 * able to drop all this parsing...
4093
 */
4094
static int monitor_check_qmp_args(const mon_cmd_t *cmd, QDict *args)
4095
{
4096
    int err;
4097
    const char *p;
4098
    CmdArgs cmd_args;
4099

    
4100
    if (cmd->args_type == NULL) {
4101
        return (qdict_size(args) == 0 ? 0 : -1);
4102
    }
4103

    
4104
    err = 0;
4105
    cmd_args_init(&cmd_args);
4106

    
4107
    for (p = cmd->args_type;; p++) {
4108
        if (*p == ':') {
4109
            cmd_args.type = *++p;
4110
            p++;
4111
            if (cmd_args.type == '-') {
4112
                cmd_args.flag = *p++;
4113
                cmd_args.optional = 1;
4114
            } else if (*p == '?') {
4115
                cmd_args.optional = 1;
4116
                p++;
4117
            }
4118

    
4119
            assert(*p == ',' || *p == '\0');
4120
            err = check_arg(&cmd_args, args);
4121

    
4122
            QDECREF(cmd_args.name);
4123
            cmd_args_init(&cmd_args);
4124

    
4125
            if (err < 0) {
4126
                break;
4127
            }
4128
        } else {
4129
            qstring_append_chr(cmd_args.name, *p);
4130
        }
4131

    
4132
        if (*p == '\0') {
4133
            break;
4134
        }
4135
    }
4136

    
4137
    QDECREF(cmd_args.name);
4138
    return err;
4139
}
4140

    
4141
static void handle_qmp_command(JSONMessageParser *parser, QList *tokens)
4142
{
4143
    int err;
4144
    QObject *obj;
4145
    QDict *input, *args;
4146
    const mon_cmd_t *cmd;
4147
    Monitor *mon = cur_mon;
4148
    const char *cmd_name, *info_item;
4149

    
4150
    args = NULL;
4151
    qemu_errors_to_mon(mon);
4152

    
4153
    obj = json_parser_parse(tokens, NULL);
4154
    if (!obj) {
4155
        // FIXME: should be triggered in json_parser_parse()
4156
        qemu_error_new(QERR_JSON_PARSING);
4157
        goto err_out;
4158
    } else if (qobject_type(obj) != QTYPE_QDICT) {
4159
        qemu_error_new(QERR_QMP_BAD_INPUT_OBJECT, "object");
4160
        qobject_decref(obj);
4161
        goto err_out;
4162
    }
4163

    
4164
    input = qobject_to_qdict(obj);
4165

    
4166
    mon->mc->id = qdict_get(input, "id");
4167
    qobject_incref(mon->mc->id);
4168

    
4169
    obj = qdict_get(input, "execute");
4170
    if (!obj) {
4171
        qemu_error_new(QERR_QMP_BAD_INPUT_OBJECT, "execute");
4172
        goto err_input;
4173
    } else if (qobject_type(obj) != QTYPE_QSTRING) {
4174
        qemu_error_new(QERR_QMP_BAD_INPUT_OBJECT, "string");
4175
        goto err_input;
4176
    }
4177

    
4178
    cmd_name = qstring_get_str(qobject_to_qstring(obj));
4179

    
4180
    /*
4181
     * XXX: We need this special case until we get info handlers
4182
     * converted into 'query-' commands
4183
     */
4184
    if (compare_cmd(cmd_name, "info")) {
4185
        qemu_error_new(QERR_COMMAND_NOT_FOUND, cmd_name);
4186
        goto err_input;
4187
    } else if (strstart(cmd_name, "query-", &info_item)) {
4188
        cmd = monitor_find_command("info");
4189
        qdict_put_obj(input, "arguments",
4190
                      qobject_from_jsonf("{ 'item': %s }", info_item));
4191
    } else {
4192
        cmd = monitor_find_command(cmd_name);
4193
        if (!cmd || !monitor_handler_ported(cmd)) {
4194
            qemu_error_new(QERR_COMMAND_NOT_FOUND, cmd_name);
4195
            goto err_input;
4196
        }
4197
    }
4198

    
4199
    obj = qdict_get(input, "arguments");
4200
    if (!obj) {
4201
        args = qdict_new();
4202
    } else {
4203
        args = qobject_to_qdict(obj);
4204
        QINCREF(args);
4205
    }
4206

    
4207
    QDECREF(input);
4208

    
4209
    err = monitor_check_qmp_args(cmd, args);
4210
    if (err < 0) {
4211
        goto err_out;
4212
    }
4213

    
4214
    if (monitor_handler_is_async(cmd)) {
4215
        qmp_async_cmd_handler(mon, cmd, args);
4216
    } else {
4217
        monitor_call_handler(mon, cmd, args);
4218
    }
4219
    goto out;
4220

    
4221
err_input:
4222
    QDECREF(input);
4223
err_out:
4224
    monitor_protocol_emitter(mon, NULL);
4225
out:
4226
    QDECREF(args);
4227
    qemu_errors_to_previous();
4228
}
4229

    
4230
/**
4231
 * monitor_control_read(): Read and handle QMP input
4232
 */
4233
static void monitor_control_read(void *opaque, const uint8_t *buf, int size)
4234
{
4235
    Monitor *old_mon = cur_mon;
4236

    
4237
    cur_mon = opaque;
4238

    
4239
    json_message_parser_feed(&cur_mon->mc->parser, (const char *) buf, size);
4240

    
4241
    cur_mon = old_mon;
4242
}
4243

    
4244
static void monitor_read(void *opaque, const uint8_t *buf, int size)
4245
{
4246
    Monitor *old_mon = cur_mon;
4247
    int i;
4248

    
4249
    cur_mon = opaque;
4250

    
4251
    if (cur_mon->rs) {
4252
        for (i = 0; i < size; i++)
4253
            readline_handle_byte(cur_mon->rs, buf[i]);
4254
    } else {
4255
        if (size == 0 || buf[size - 1] != 0)
4256
            monitor_printf(cur_mon, "corrupted command\n");
4257
        else
4258
            handle_user_command(cur_mon, (char *)buf);
4259
    }
4260

    
4261
    cur_mon = old_mon;
4262
}
4263

    
4264
static void monitor_command_cb(Monitor *mon, const char *cmdline, void *opaque)
4265
{
4266
    monitor_suspend(mon);
4267
    handle_user_command(mon, cmdline);
4268
    monitor_resume(mon);
4269
}
4270

    
4271
int monitor_suspend(Monitor *mon)
4272
{
4273
    if (!mon->rs)
4274
        return -ENOTTY;
4275
    mon->suspend_cnt++;
4276
    return 0;
4277
}
4278

    
4279
void monitor_resume(Monitor *mon)
4280
{
4281
    if (!mon->rs)
4282
        return;
4283
    if (--mon->suspend_cnt == 0)
4284
        readline_show_prompt(mon->rs);
4285
}
4286

    
4287
/**
4288
 * monitor_control_event(): Print QMP gretting
4289
 */
4290
static void monitor_control_event(void *opaque, int event)
4291
{
4292
    if (event == CHR_EVENT_OPENED) {
4293
        QObject *data;
4294
        Monitor *mon = opaque;
4295

    
4296
        json_message_parser_init(&mon->mc->parser, handle_qmp_command);
4297

    
4298
        data = qobject_from_jsonf("{ 'QMP': { 'capabilities': [] } }");
4299
        assert(data != NULL);
4300

    
4301
        monitor_json_emitter(mon, data);
4302
        qobject_decref(data);
4303
    }
4304
}
4305

    
4306
static void monitor_event(void *opaque, int event)
4307
{
4308
    Monitor *mon = opaque;
4309

    
4310
    switch (event) {
4311
    case CHR_EVENT_MUX_IN:
4312
        mon->mux_out = 0;
4313
        if (mon->reset_seen) {
4314
            readline_restart(mon->rs);
4315
            monitor_resume(mon);
4316
            monitor_flush(mon);
4317
        } else {
4318
            mon->suspend_cnt = 0;
4319
        }
4320
        break;
4321

    
4322
    case CHR_EVENT_MUX_OUT:
4323
        if (mon->reset_seen) {
4324
            if (mon->suspend_cnt == 0) {
4325
                monitor_printf(mon, "\n");
4326
            }
4327
            monitor_flush(mon);
4328
            monitor_suspend(mon);
4329
        } else {
4330
            mon->suspend_cnt++;
4331
        }
4332
        mon->mux_out = 1;
4333
        break;
4334

    
4335
    case CHR_EVENT_OPENED:
4336
        monitor_printf(mon, "QEMU %s monitor - type 'help' for more "
4337
                       "information\n", QEMU_VERSION);
4338
        if (!mon->mux_out) {
4339
            readline_show_prompt(mon->rs);
4340
        }
4341
        mon->reset_seen = 1;
4342
        break;
4343
    }
4344
}
4345

    
4346

    
4347
/*
4348
 * Local variables:
4349
 *  c-indent-level: 4
4350
 *  c-basic-offset: 4
4351
 *  tab-width: 8
4352
 * End:
4353
 */
4354

    
4355
void monitor_init(CharDriverState *chr, int flags)
4356
{
4357
    static int is_first_init = 1;
4358
    Monitor *mon;
4359

    
4360
    if (is_first_init) {
4361
        key_timer = qemu_new_timer(vm_clock, release_keys, NULL);
4362
        is_first_init = 0;
4363
    }
4364

    
4365
    mon = qemu_mallocz(sizeof(*mon));
4366

    
4367
    mon->chr = chr;
4368
    mon->flags = flags;
4369
    if (flags & MONITOR_USE_READLINE) {
4370
        mon->rs = readline_init(mon, monitor_find_completion);
4371
        monitor_read_command(mon, 0);
4372
    }
4373

    
4374
    if (monitor_ctrl_mode(mon)) {
4375
        mon->mc = qemu_mallocz(sizeof(MonitorControl));
4376
        /* Control mode requires special handlers */
4377
        qemu_chr_add_handlers(chr, monitor_can_read, monitor_control_read,
4378
                              monitor_control_event, mon);
4379
    } else {
4380
        qemu_chr_add_handlers(chr, monitor_can_read, monitor_read,
4381
                              monitor_event, mon);
4382
    }
4383

    
4384
    QLIST_INSERT_HEAD(&mon_list, mon, entry);
4385
    if (!cur_mon || (flags & MONITOR_IS_DEFAULT))
4386
        cur_mon = mon;
4387
}
4388

    
4389
static void bdrv_password_cb(Monitor *mon, const char *password, void *opaque)
4390
{
4391
    BlockDriverState *bs = opaque;
4392
    int ret = 0;
4393

    
4394
    if (bdrv_set_key(bs, password) != 0) {
4395
        monitor_printf(mon, "invalid password\n");
4396
        ret = -EPERM;
4397
    }
4398
    if (mon->password_completion_cb)
4399
        mon->password_completion_cb(mon->password_opaque, ret);
4400

    
4401
    monitor_read_command(mon, 1);
4402
}
4403

    
4404
void monitor_read_bdrv_key_start(Monitor *mon, BlockDriverState *bs,
4405
                                 BlockDriverCompletionFunc *completion_cb,
4406
                                 void *opaque)
4407
{
4408
    int err;
4409

    
4410
    if (!bdrv_key_required(bs)) {
4411
        if (completion_cb)
4412
            completion_cb(opaque, 0);
4413
        return;
4414
    }
4415

    
4416
    if (monitor_ctrl_mode(mon)) {
4417
        qemu_error_new(QERR_DEVICE_ENCRYPTED, bdrv_get_device_name(bs));
4418
        return;
4419
    }
4420

    
4421
    monitor_printf(mon, "%s (%s) is encrypted.\n", bdrv_get_device_name(bs),
4422
                   bdrv_get_encrypted_filename(bs));
4423

    
4424
    mon->password_completion_cb = completion_cb;
4425
    mon->password_opaque = opaque;
4426

    
4427
    err = monitor_read_password(mon, bdrv_password_cb, bs);
4428

    
4429
    if (err && completion_cb)
4430
        completion_cb(opaque, err);
4431
}
4432

    
4433
typedef struct QemuErrorSink QemuErrorSink;
4434
struct QemuErrorSink {
4435
    enum {
4436
        ERR_SINK_FILE,
4437
        ERR_SINK_MONITOR,
4438
    } dest;
4439
    union {
4440
        FILE    *fp;
4441
        Monitor *mon;
4442
    };
4443
    QemuErrorSink *previous;
4444
};
4445

    
4446
static QemuErrorSink *qemu_error_sink;
4447

    
4448
void qemu_errors_to_file(FILE *fp)
4449
{
4450
    QemuErrorSink *sink;
4451

    
4452
    sink = qemu_mallocz(sizeof(*sink));
4453
    sink->dest = ERR_SINK_FILE;
4454
    sink->fp = fp;
4455
    sink->previous = qemu_error_sink;
4456
    qemu_error_sink = sink;
4457
}
4458

    
4459
void qemu_errors_to_mon(Monitor *mon)
4460
{
4461
    QemuErrorSink *sink;
4462

    
4463
    sink = qemu_mallocz(sizeof(*sink));
4464
    sink->dest = ERR_SINK_MONITOR;
4465
    sink->mon = mon;
4466
    sink->previous = qemu_error_sink;
4467
    qemu_error_sink = sink;
4468
}
4469

    
4470
void qemu_errors_to_previous(void)
4471
{
4472
    QemuErrorSink *sink;
4473

    
4474
    assert(qemu_error_sink != NULL);
4475
    sink = qemu_error_sink;
4476
    qemu_error_sink = sink->previous;
4477
    qemu_free(sink);
4478
}
4479

    
4480
void qemu_error(const char *fmt, ...)
4481
{
4482
    va_list args;
4483

    
4484
    assert(qemu_error_sink != NULL);
4485
    switch (qemu_error_sink->dest) {
4486
    case ERR_SINK_FILE:
4487
        va_start(args, fmt);
4488
        vfprintf(qemu_error_sink->fp, fmt, args);
4489
        va_end(args);
4490
        break;
4491
    case ERR_SINK_MONITOR:
4492
        va_start(args, fmt);
4493
        monitor_vprintf(qemu_error_sink->mon, fmt, args);
4494
        va_end(args);
4495
        break;
4496
    }
4497
}
4498

    
4499
void qemu_error_internal(const char *file, int linenr, const char *func,
4500
                         const char *fmt, ...)
4501
{
4502
    va_list va;
4503
    QError *qerror;
4504

    
4505
    assert(qemu_error_sink != NULL);
4506

    
4507
    va_start(va, fmt);
4508
    qerror = qerror_from_info(file, linenr, func, fmt, &va);
4509
    va_end(va);
4510

    
4511
    switch (qemu_error_sink->dest) {
4512
    case ERR_SINK_FILE:
4513
        qerror_print(qerror);
4514
        QDECREF(qerror);
4515
        break;
4516
    case ERR_SINK_MONITOR:
4517
        assert(qemu_error_sink->mon->error == NULL);
4518
        qemu_error_sink->mon->error = qerror;
4519
        break;
4520
    }
4521
}