monitor.c

   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 ram_addr_t balloon_get_value(void)
2156 {
2157     ram_addr_t actual;
2158
2159     if (kvm_enabled() && !kvm_has_sync_mmu()) {
2160         qemu_error_new(QERR_KVM_MISSING_CAP, "synchronous MMU", "balloon");
2161         return 0;
2162     }
2163
2164     actual = qemu_balloon_status();
2165     if (actual == 0) {
2166         qemu_error_new(QERR_DEVICE_NOT_ACTIVE, "balloon");
2167         return 0;
2168     }
2169
2170     return actual;
2171 }
2172
2173 /**
2174  * do_balloon(): Request VM to change its memory allocation
2175  */
2176 static void do_balloon(Monitor *mon, const QDict *qdict, QObject **ret_data)
2177 {
2178     if (balloon_get_value()) {
2179         /* ballooning is active */
2180         qemu_balloon(qdict_get_int(qdict, "value"));
2181     }
2182 }
2183
2184 static void monitor_print_balloon(Monitor *mon, const QObject *data)
2185 {
2186     QDict *qdict;
2187
2188     qdict = qobject_to_qdict(data);
2189
2190     monitor_printf(mon, "balloon: actual=%" PRId64 "\n",
2191                         qdict_get_int(qdict, "balloon") >> 20);
2192 }
2193
2194 /**
2195  * do_info_balloon(): Balloon information
2196  *
2197  * Return a QDict with the following information:
2198  *
2199  * - "balloon": current balloon value in bytes
2200  *
2201  * Example:
2202  *
2203  * { "balloon": 1073741824 }
2204  */
2205 static void do_info_balloon(Monitor *mon, QObject **ret_data)
2206 {
2207     ram_addr_t actual;
2208
2209     actual = balloon_get_value();
2210     if (actual != 0) {
2211         *ret_data = qobject_from_jsonf("{ 'balloon': %" PRId64 "}",
2212                                        (int64_t) actual);
2213     }
2214 }
2215
2216 static qemu_acl *find_acl(Monitor *mon, const char *name)
2217 {
2218     qemu_acl *acl = qemu_acl_find(name);
2219
2220     if (!acl) {
2221         monitor_printf(mon, "acl: unknown list '%s'\n", name);
2222     }
2223     return acl;
2224 }
2225
2226 static void do_acl_show(Monitor *mon, const QDict *qdict)
2227 {
2228     const char *aclname = qdict_get_str(qdict, "aclname");
2229     qemu_acl *acl = find_acl(mon, aclname);
2230     qemu_acl_entry *entry;
2231     int i = 0;
2232
2233     if (acl) {
2234         monitor_printf(mon, "policy: %s\n",
2235                        acl->defaultDeny ? "deny" : "allow");
2236         QTAILQ_FOREACH(entry, &acl->entries, next) {
2237             i++;
2238             monitor_printf(mon, "%d: %s %s\n", i,
2239                            entry->deny ? "deny" : "allow", entry->match);
2240         }
2241     }
2242 }
2243
2244 static void do_acl_reset(Monitor *mon, const QDict *qdict)
2245 {
2246     const char *aclname = qdict_get_str(qdict, "aclname");
2247     qemu_acl *acl = find_acl(mon, aclname);
2248
2249     if (acl) {
2250         qemu_acl_reset(acl);
2251         monitor_printf(mon, "acl: removed all rules\n");
2252     }
2253 }
2254
2255 static void do_acl_policy(Monitor *mon, const QDict *qdict)
2256 {
2257     const char *aclname = qdict_get_str(qdict, "aclname");
2258     const char *policy = qdict_get_str(qdict, "policy");
2259     qemu_acl *acl = find_acl(mon, aclname);
2260
2261     if (acl) {
2262         if (strcmp(policy, "allow") == 0) {
2263             acl->defaultDeny = 0;
2264             monitor_printf(mon, "acl: policy set to 'allow'\n");
2265         } else if (strcmp(policy, "deny") == 0) {
2266             acl->defaultDeny = 1;
2267             monitor_printf(mon, "acl: policy set to 'deny'\n");
2268         } else {
2269             monitor_printf(mon, "acl: unknown policy '%s', "
2270                            "expected 'deny' or 'allow'\n", policy);
2271         }
2272     }
2273 }
2274
2275 static void do_acl_add(Monitor *mon, const QDict *qdict)
2276 {
2277     const char *aclname = qdict_get_str(qdict, "aclname");
2278     const char *match = qdict_get_str(qdict, "match");
2279     const char *policy = qdict_get_str(qdict, "policy");
2280     int has_index = qdict_haskey(qdict, "index");
2281     int index = qdict_get_try_int(qdict, "index", -1);
2282     qemu_acl *acl = find_acl(mon, aclname);
2283     int deny, ret;
2284
2285     if (acl) {
2286         if (strcmp(policy, "allow") == 0) {
2287             deny = 0;
2288         } else if (strcmp(policy, "deny") == 0) {
2289             deny = 1;
2290         } else {
2291             monitor_printf(mon, "acl: unknown policy '%s', "
2292                            "expected 'deny' or 'allow'\n", policy);
2293             return;
2294         }
2295         if (has_index)
2296             ret = qemu_acl_insert(acl, deny, match, index);
2297         else
2298             ret = qemu_acl_append(acl, deny, match);
2299         if (ret < 0)
2300             monitor_printf(mon, "acl: unable to add acl entry\n");
2301         else
2302             monitor_printf(mon, "acl: added rule at position %d\n", ret);
2303     }
2304 }
2305
2306 static void do_acl_remove(Monitor *mon, const QDict *qdict)
2307 {
2308     const char *aclname = qdict_get_str(qdict, "aclname");
2309     const char *match = qdict_get_str(qdict, "match");
2310     qemu_acl *acl = find_acl(mon, aclname);
2311     int ret;
2312
2313     if (acl) {
2314         ret = qemu_acl_remove(acl, match);
2315         if (ret < 0)
2316             monitor_printf(mon, "acl: no matching acl entry\n");
2317         else
2318             monitor_printf(mon, "acl: removed rule at position %d\n", ret);
2319     }
2320 }
2321
2322 #if defined(TARGET_I386)
2323 static void do_inject_mce(Monitor *mon, const QDict *qdict)
2324 {
2325     CPUState *cenv;
2326     int cpu_index = qdict_get_int(qdict, "cpu_index");
2327     int bank = qdict_get_int(qdict, "bank");
2328     uint64_t status = qdict_get_int(qdict, "status");
2329     uint64_t mcg_status = qdict_get_int(qdict, "mcg_status");
2330     uint64_t addr = qdict_get_int(qdict, "addr");
2331     uint64_t misc = qdict_get_int(qdict, "misc");
2332
2333     for (cenv = first_cpu; cenv != NULL; cenv = cenv->next_cpu)
2334         if (cenv->cpu_index == cpu_index && cenv->mcg_cap) {
2335             cpu_inject_x86_mce(cenv, bank, status, mcg_status, addr, misc);
2336             break;
2337         }
2338 }
2339 #endif
2340
2341 static void do_getfd(Monitor *mon, const QDict *qdict, QObject **ret_data)
2342 {
2343     const char *fdname = qdict_get_str(qdict, "fdname");
2344     mon_fd_t *monfd;
2345     int fd;
2346
2347     fd = qemu_chr_get_msgfd(mon->chr);
2348     if (fd == -1) {
2349         qemu_error_new(QERR_FD_NOT_SUPPLIED);
2350         return;
2351     }
2352
2353     if (qemu_isdigit(fdname[0])) {
2354         qemu_error_new(QERR_INVALID_PARAMETER, "fdname");
2355         return;
2356     }
2357
2358     fd = dup(fd);
2359     if (fd == -1) {
2360         if (errno == EMFILE)
2361             qemu_error_new(QERR_TOO_MANY_FILES);
2362         else
2363             qemu_error_new(QERR_UNDEFINED_ERROR);
2364         return;
2365     }
2366
2367     QLIST_FOREACH(monfd, &mon->fds, next) {
2368         if (strcmp(monfd->name, fdname) != 0) {
2369             continue;
2370         }
2371
2372         close(monfd->fd);
2373         monfd->fd = fd;
2374         return;
2375     }
2376
2377     monfd = qemu_mallocz(sizeof(mon_fd_t));
2378     monfd->name = qemu_strdup(fdname);
2379     monfd->fd = fd;
2380
2381     QLIST_INSERT_HEAD(&mon->fds, monfd, next);
2382 }
2383
2384 static void do_closefd(Monitor *mon, const QDict *qdict, QObject **ret_data)
2385 {
2386     const char *fdname = qdict_get_str(qdict, "fdname");
2387     mon_fd_t *monfd;
2388
2389     QLIST_FOREACH(monfd, &mon->fds, next) {
2390         if (strcmp(monfd->name, fdname) != 0) {
2391             continue;
2392         }
2393
2394         QLIST_REMOVE(monfd, next);
2395         close(monfd->fd);
2396         qemu_free(monfd->name);
2397         qemu_free(monfd);
2398         return;
2399     }
2400
2401     qemu_error_new(QERR_FD_NOT_FOUND, fdname);
2402 }
2403
2404 static void do_loadvm(Monitor *mon, const QDict *qdict)
2405 {
2406     int saved_vm_running  = vm_running;
2407     const char *name = qdict_get_str(qdict, "name");
2408
2409     vm_stop(0);
2410
2411     if (load_vmstate(mon, name) >= 0 && saved_vm_running)
2412         vm_start();
2413 }
2414
2415 int monitor_get_fd(Monitor *mon, const char *fdname)
2416 {
2417     mon_fd_t *monfd;
2418
2419     QLIST_FOREACH(monfd, &mon->fds, next) {
2420         int fd;
2421
2422         if (strcmp(monfd->name, fdname) != 0) {
2423             continue;
2424         }
2425
2426         fd = monfd->fd;
2427
2428         /* caller takes ownership of fd */
2429         QLIST_REMOVE(monfd, next);
2430         qemu_free(monfd->name);
2431         qemu_free(monfd);
2432
2433         return fd;
2434     }
2435
2436     return -1;
2437 }
2438
2439 static const mon_cmd_t mon_cmds[] = {
2440 #include "qemu-monitor.h"
2441     { NULL, NULL, },
2442 };
2443
2444 /* Please update qemu-monitor.hx when adding or changing commands */
2445 static const mon_cmd_t info_cmds[] = {
2446     {
2447         .name       = "version",
2448         .args_type  = "",
2449         .params     = "",
2450         .help       = "show the version of QEMU",
2451         .user_print = do_info_version_print,
2452         .mhandler.info_new = do_info_version,
2453     },
2454     {
2455         .name       = "commands",
2456         .args_type  = "",
2457         .params     = "",
2458         .help       = "list QMP available commands",
2459         .user_print = monitor_user_noop,
2460         .mhandler.info_new = do_info_commands,
2461     },
2462     {
2463         .name       = "network",
2464         .args_type  = "",
2465         .params     = "",
2466         .help       = "show the network state",
2467         .mhandler.info = do_info_network,
2468     },
2469     {
2470         .name       = "chardev",
2471         .args_type  = "",
2472         .params     = "",
2473         .help       = "show the character devices",
2474         .user_print = qemu_chr_info_print,
2475         .mhandler.info_new = qemu_chr_info,
2476     },
2477     {
2478         .name       = "block",
2479         .args_type  = "",
2480         .params     = "",
2481         .help       = "show the block devices",
2482         .user_print = bdrv_info_print,
2483         .mhandler.info_new = bdrv_info,
2484     },
2485     {
2486         .name       = "blockstats",
2487         .args_type  = "",
2488         .params     = "",
2489         .help       = "show block device statistics",
2490         .user_print = bdrv_stats_print,
2491         .mhandler.info_new = bdrv_info_stats,
2492     },
2493     {
2494         .name       = "registers",
2495         .args_type  = "",
2496         .params     = "",
2497         .help       = "show the cpu registers",
2498         .mhandler.info = do_info_registers,
2499     },
2500     {
2501         .name       = "cpus",
2502         .args_type  = "",
2503         .params     = "",
2504         .help       = "show infos for each CPU",
2505         .user_print = monitor_print_cpus,
2506         .mhandler.info_new = do_info_cpus,
2507     },
2508     {
2509         .name       = "history",
2510         .args_type  = "",
2511         .params     = "",
2512         .help       = "show the command line history",
2513         .mhandler.info = do_info_history,
2514     },
2515     {
2516         .name       = "irq",
2517         .args_type  = "",
2518         .params     = "",
2519         .help       = "show the interrupts statistics (if available)",
2520         .mhandler.info = irq_info,
2521     },
2522     {
2523         .name       = "pic",
2524         .args_type  = "",
2525         .params     = "",
2526         .help       = "show i8259 (PIC) state",
2527         .mhandler.info = pic_info,
2528     },
2529     {
2530         .name       = "pci",
2531         .args_type  = "",
2532         .params     = "",
2533         .help       = "show PCI info",
2534         .user_print = do_pci_info_print,
2535         .mhandler.info_new = do_pci_info,
2536     },
2537 #if defined(TARGET_I386) || defined(TARGET_SH4)
2538     {
2539         .name       = "tlb",
2540         .args_type  = "",
2541         .params     = "",
2542         .help       = "show virtual to physical memory mappings",
2543         .mhandler.info = tlb_info,
2544     },
2545 #endif
2546 #if defined(TARGET_I386)
2547     {
2548         .name       = "mem",
2549         .args_type  = "",
2550         .params     = "",
2551         .help       = "show the active virtual memory mappings",
2552         .mhandler.info = mem_info,
2553     },
2554     {
2555         .name       = "hpet",
2556         .args_type  = "",
2557         .params     = "",
2558         .help       = "show state of HPET",
2559         .user_print = do_info_hpet_print,
2560         .mhandler.info_new = do_info_hpet,
2561     },
2562 #endif
2563     {
2564         .name       = "jit",
2565         .args_type  = "",
2566         .params     = "",
2567         .help       = "show dynamic compiler info",
2568         .mhandler.info = do_info_jit,
2569     },
2570     {
2571         .name       = "kvm",
2572         .args_type  = "",
2573         .params     = "",
2574         .help       = "show KVM information",
2575         .user_print = do_info_kvm_print,
2576         .mhandler.info_new = do_info_kvm,
2577     },
2578     {
2579         .name       = "numa",
2580         .args_type  = "",
2581         .params     = "",
2582         .help       = "show NUMA information",
2583         .mhandler.info = do_info_numa,
2584     },
2585     {
2586         .name       = "usb",
2587         .args_type  = "",
2588         .params     = "",
2589         .help       = "show guest USB devices",
2590         .mhandler.info = usb_info,
2591     },
2592     {
2593         .name       = "usbhost",
2594         .args_type  = "",
2595         .params     = "",
2596         .help       = "show host USB devices",
2597         .mhandler.info = usb_host_info,
2598     },
2599     {
2600         .name       = "profile",
2601         .args_type  = "",
2602         .params     = "",
2603         .help       = "show profiling information",
2604         .mhandler.info = do_info_profile,
2605     },
2606     {
2607         .name       = "capture",
2608         .args_type  = "",
2609         .params     = "",
2610         .help       = "show capture information",
2611         .mhandler.info = do_info_capture,
2612     },
2613     {
2614         .name       = "snapshots",
2615         .args_type  = "",
2616         .params     = "",
2617         .help       = "show the currently saved VM snapshots",
2618         .mhandler.info = do_info_snapshots,
2619     },
2620     {
2621         .name       = "status",
2622         .args_type  = "",
2623         .params     = "",
2624         .help       = "show the current VM status (running|paused)",
2625         .user_print = do_info_status_print,
2626         .mhandler.info_new = do_info_status,
2627     },
2628     {
2629         .name       = "pcmcia",
2630         .args_type  = "",
2631         .params     = "",
2632         .help       = "show guest PCMCIA status",
2633         .mhandler.info = pcmcia_info,
2634     },
2635     {
2636         .name       = "mice",
2637         .args_type  = "",
2638         .params     = "",
2639         .help       = "show which guest mouse is receiving events",
2640         .user_print = do_info_mice_print,
2641         .mhandler.info_new = do_info_mice,
2642     },
2643     {
2644         .name       = "vnc",
2645         .args_type  = "",
2646         .params     = "",
2647         .help       = "show the vnc server status",
2648         .user_print = do_info_vnc_print,
2649         .mhandler.info_new = do_info_vnc,
2650     },
2651     {
2652         .name       = "name",
2653         .args_type  = "",
2654         .params     = "",
2655         .help       = "show the current VM name",
2656         .user_print = do_info_name_print,
2657         .mhandler.info_new = do_info_name,
2658     },
2659     {
2660         .name       = "uuid",
2661         .args_type  = "",
2662         .params     = "",
2663         .help       = "show the current VM UUID",
2664         .user_print = do_info_uuid_print,
2665         .mhandler.info_new = do_info_uuid,
2666     },
2667 #if defined(TARGET_PPC)
2668     {
2669         .name       = "cpustats",
2670         .args_type  = "",
2671         .params     = "",
2672         .help       = "show CPU statistics",
2673         .mhandler.info = do_info_cpu_stats,
2674     },
2675 #endif
2676 #if defined(CONFIG_SLIRP)
2677     {
2678         .name       = "usernet",
2679         .args_type  = "",
2680         .params     = "",
2681         .help       = "show user network stack connection states",
2682         .mhandler.info = do_info_usernet,
2683     },
2684 #endif
2685     {
2686         .name       = "migrate",
2687         .args_type  = "",
2688         .params     = "",
2689         .help       = "show migration status",
2690         .user_print = do_info_migrate_print,
2691         .mhandler.info_new = do_info_migrate,
2692     },
2693     {
2694         .name       = "balloon",
2695         .args_type  = "",
2696         .params     = "",
2697         .help       = "show balloon information",
2698         .user_print = monitor_print_balloon,
2699         .mhandler.info_new = do_info_balloon,
2700     },
2701     {
2702         .name       = "qtree",
2703         .args_type  = "",
2704         .params     = "",
2705         .help       = "show device tree",
2706         .mhandler.info = do_info_qtree,
2707     },
2708     {
2709         .name       = "qdm",
2710         .args_type  = "",
2711         .params     = "",
2712         .help       = "show qdev device model list",
2713         .mhandler.info = do_info_qdm,
2714     },
2715     {
2716         .name       = "roms",
2717         .args_type  = "",
2718         .params     = "",
2719         .help       = "show roms",
2720         .mhandler.info = do_info_roms,
2721     },
2722     {
2723         .name       = NULL,
2724     },
2725 };
2726
2727 /*******************************************************************/
2728
2729 static const char *pch;
2730 static jmp_buf expr_env;
2731
2732 #define MD_TLONG 0
2733 #define MD_I32   1
2734
2735 typedef struct MonitorDef {
2736     const char *name;
2737     int offset;
2738     target_long (*get_value)(const struct MonitorDef *md, int val);
2739     int type;
2740 } MonitorDef;
2741
2742 #if defined(TARGET_I386)
2743 static target_long monitor_get_pc (const struct MonitorDef *md, int val)
2744 {
2745     CPUState *env = mon_get_cpu();
2746     return env->eip + env->segs[R_CS].base;
2747 }
2748 #endif
2749
2750 #if defined(TARGET_PPC)
2751 static target_long monitor_get_ccr (const struct MonitorDef *md, int val)
2752 {
2753     CPUState *env = mon_get_cpu();
2754     unsigned int u;
2755     int i;
2756
2757     u = 0;
2758     for (i = 0; i < 8; i++)
2759         u |= env->crf[i] << (32 - (4 * i));
2760
2761     return u;
2762 }
2763
2764 static target_long monitor_get_msr (const struct MonitorDef *md, int val)
2765 {
2766     CPUState *env = mon_get_cpu();
2767     return env->msr;
2768 }
2769
2770 static target_long monitor_get_xer (const struct MonitorDef *md, int val)
2771 {
2772     CPUState *env = mon_get_cpu();
2773     return env->xer;
2774 }
2775
2776 static target_long monitor_get_decr (const struct MonitorDef *md, int val)
2777 {
2778     CPUState *env = mon_get_cpu();
2779     return cpu_ppc_load_decr(env);
2780 }
2781
2782 static target_long monitor_get_tbu (const struct MonitorDef *md, int val)
2783 {
2784     CPUState *env = mon_get_cpu();
2785     return cpu_ppc_load_tbu(env);
2786 }
2787
2788 static target_long monitor_get_tbl (const struct MonitorDef *md, int val)
2789 {
2790     CPUState *env = mon_get_cpu();
2791     return cpu_ppc_load_tbl(env);
2792 }
2793 #endif
2794
2795 #if defined(TARGET_SPARC)
2796 #ifndef TARGET_SPARC64
2797 static target_long monitor_get_psr (const struct MonitorDef *md, int val)
2798 {
2799     CPUState *env = mon_get_cpu();
2800     return GET_PSR(env);
2801 }
2802 #endif
2803
2804 static target_long monitor_get_reg(const struct MonitorDef *md, int val)
2805 {
2806     CPUState *env = mon_get_cpu();
2807     return env->regwptr[val];
2808 }
2809 #endif
2810
2811 static const MonitorDef monitor_defs[] = {
2812 #ifdef TARGET_I386
2813
2814 #define SEG(name, seg) \
2815     { name, offsetof(CPUState, segs[seg].selector), NULL, MD_I32 },\
2816     { name ".base", offsetof(CPUState, segs[seg].base) },\
2817     { name ".limit", offsetof(CPUState, segs[seg].limit), NULL, MD_I32 },
2818
2819     { "eax", offsetof(CPUState, regs[0]) },
2820     { "ecx", offsetof(CPUState, regs[1]) },
2821     { "edx", offsetof(CPUState, regs[2]) },
2822     { "ebx", offsetof(CPUState, regs[3]) },
2823     { "esp|sp", offsetof(CPUState, regs[4]) },
2824     { "ebp|fp", offsetof(CPUState, regs[5]) },
2825     { "esi", offsetof(CPUState, regs[6]) },
2826     { "edi", offsetof(CPUState, regs[7]) },
2827 #ifdef TARGET_X86_64
2828     { "r8", offsetof(CPUState, regs[8]) },
2829     { "r9", offsetof(CPUState, regs[9]) },
2830     { "r10", offsetof(CPUState, regs[10]) },
2831     { "r11", offsetof(CPUState, regs[11]) },
2832     { "r12", offsetof(CPUState, regs[12]) },
2833     { "r13", offsetof(CPUState, regs[13]) },
2834     { "r14", offsetof(CPUState, regs[14]) },
2835     { "r15", offsetof(CPUState, regs[15]) },
2836 #endif
2837     { "eflags", offsetof(CPUState, eflags) },
2838     { "eip", offsetof(CPUState, eip) },
2839     SEG("cs", R_CS)
2840     SEG("ds", R_DS)
2841     SEG("es", R_ES)
2842     SEG("ss", R_SS)
2843     SEG("fs", R_FS)
2844     SEG("gs", R_GS)
2845     { "pc", 0, monitor_get_pc, },
2846 #elif defined(TARGET_PPC)
2847     /* General purpose registers */
2848     { "r0", offsetof(CPUState, gpr[0]) },
2849     { "r1", offsetof(CPUState, gpr[1]) },
2850     { "r2", offsetof(CPUState, gpr[2]) },
2851     { "r3", offsetof(CPUState, gpr[3]) },
2852     { "r4", offsetof(CPUState, gpr[4]) },
2853     { "r5", offsetof(CPUState, gpr[5]) },
2854     { "r6", offsetof(CPUState, gpr[6]) },
2855     { "r7", offsetof(CPUState, gpr[7]) },
2856     { "r8", offsetof(CPUState, gpr[8]) },
2857     { "r9", offsetof(CPUState, gpr[9]) },
2858     { "r10", offsetof(CPUState, gpr[10]) },
2859     { "r11", offsetof(CPUState, gpr[11]) },
2860     { "r12", offsetof(CPUState, gpr[12]) },
2861     { "r13", offsetof(CPUState, gpr[13]) },
2862     { "r14", offsetof(CPUState, gpr[14]) },
2863     { "r15", offsetof(CPUState, gpr[15]) },
2864     { "r16", offsetof(CPUState, gpr[16]) },
2865     { "r17", offsetof(CPUState, gpr[17]) },
2866     { "r18", offsetof(CPUState, gpr[18]) },
2867     { "r19", offsetof(CPUState, gpr[19]) },
2868     { "r20", offsetof(CPUState, gpr[20]) },
2869     { "r21", offsetof(CPUState, gpr[21]) },
2870     { "r22", offsetof(CPUState, gpr[22]) },
2871     { "r23", offsetof(CPUState, gpr[23]) },
2872     { "r24", offsetof(CPUState, gpr[24]) },
2873     { "r25", offsetof(CPUState, gpr[25]) },
2874     { "r26", offsetof(CPUState, gpr[26]) },
2875     { "r27", offsetof(CPUState, gpr[27]) },
2876     { "r28", offsetof(CPUState, gpr[28]) },
2877     { "r29", offsetof(CPUState, gpr[29]) },
2878     { "r30", offsetof(CPUState, gpr[30]) },
2879     { "r31", offsetof(CPUState, gpr[31]) },
2880     /* Floating point registers */
2881     { "f0", offsetof(CPUState, fpr[0]) },
2882     { "f1", offsetof(CPUState, fpr[1]) },
2883     { "f2", offsetof(CPUState, fpr[2]) },
2884     { "f3", offsetof(CPUState, fpr[3]) },
2885     { "f4", offsetof(CPUState, fpr[4]) },
2886     { "f5", offsetof(CPUState, fpr[5]) },
2887     { "f6", offsetof(CPUState, fpr[6]) },
2888     { "f7", offsetof(CPUState, fpr[7]) },
2889     { "f8", offsetof(CPUState, fpr[8]) },
2890     { "f9", offsetof(CPUState, fpr[9]) },
2891     { "f10", offsetof(CPUState, fpr[10]) },
2892     { "f11", offsetof(CPUState, fpr[11]) },
2893     { "f12", offsetof(CPUState, fpr[12]) },
2894     { "f13", offsetof(CPUState, fpr[13]) },
2895     { "f14", offsetof(CPUState, fpr[14]) },
2896     { "f15", offsetof(CPUState, fpr[15]) },
2897     { "f16", offsetof(CPUState, fpr[16]) },
2898     { "f17", offsetof(CPUState, fpr[17]) },
2899     { "f18", offsetof(CPUState, fpr[18]) },
2900     { "f19", offsetof(CPUState, fpr[19]) },
2901     { "f20", offsetof(CPUState, fpr[20]) },
2902     { "f21", offsetof(CPUState, fpr[21]) },
2903     { "f22", offsetof(CPUState, fpr[22]) },
2904     { "f23", offsetof(CPUState, fpr[23]) },
2905     { "f24", offsetof(CPUState, fpr[24]) },
2906     { "f25", offsetof(CPUState, fpr[25]) },
2907     { "f26", offsetof(CPUState, fpr[26]) },
2908     { "f27", offsetof(CPUState, fpr[27]) },
2909     { "f28", offsetof(CPUState, fpr[28]) },
2910     { "f29", offsetof(CPUState, fpr[29]) },
2911     { "f30", offsetof(CPUState, fpr[30]) },
2912     { "f31", offsetof(CPUState, fpr[31]) },
2913     { "fpscr", offsetof(CPUState, fpscr) },
2914     /* Next instruction pointer */
2915     { "nip|pc", offsetof(CPUState, nip) },
2916     { "lr", offsetof(CPUState, lr) },
2917     { "ctr", offsetof(CPUState, ctr) },
2918     { "decr", 0, &monitor_get_decr, },
2919     { "ccr", 0, &monitor_get_ccr, },
2920     /* Machine state register */
2921     { "msr", 0, &monitor_get_msr, },
2922     { "xer", 0, &monitor_get_xer, },
2923     { "tbu", 0, &monitor_get_tbu, },
2924     { "tbl", 0, &monitor_get_tbl, },
2925 #if defined(TARGET_PPC64)
2926     /* Address space register */
2927     { "asr", offsetof(CPUState, asr) },
2928 #endif
2929     /* Segment registers */
2930     { "sdr1", offsetof(CPUState, sdr1) },
2931     { "sr0", offsetof(CPUState, sr[0]) },
2932     { "sr1", offsetof(CPUState, sr[1]) },
2933     { "sr2", offsetof(CPUState, sr[2]) },
2934     { "sr3", offsetof(CPUState, sr[3]) },
2935     { "sr4", offsetof(CPUState, sr[4]) },
2936     { "sr5", offsetof(CPUState, sr[5]) },
2937     { "sr6", offsetof(CPUState, sr[6]) },
2938     { "sr7", offsetof(CPUState, sr[7]) },
2939     { "sr8", offsetof(CPUState, sr[8]) },
2940     { "sr9", offsetof(CPUState, sr[9]) },
2941     { "sr10", offsetof(CPUState, sr[10]) },
2942     { "sr11", offsetof(CPUState, sr[11]) },
2943     { "sr12", offsetof(CPUState, sr[12]) },
2944     { "sr13", offsetof(CPUState, sr[13]) },
2945     { "sr14", offsetof(CPUState, sr[14]) },
2946     { "sr15", offsetof(CPUState, sr[15]) },
2947     /* Too lazy to put BATs and SPRs ... */
2948 #elif defined(TARGET_SPARC)
2949     { "g0", offsetof(CPUState, gregs[0]) },
2950     { "g1", offsetof(CPUState, gregs[1]) },
2951     { "g2", offsetof(CPUState, gregs[2]) },
2952     { "g3", offsetof(CPUState, gregs[3]) },
2953     { "g4", offsetof(CPUState, gregs[4]) },
2954     { "g5", offsetof(CPUState, gregs[5]) },
2955     { "g6", offsetof(CPUState, gregs[6]) },
2956     { "g7", offsetof(CPUState, gregs[7]) },
2957     { "o0", 0, monitor_get_reg },
2958     { "o1", 1, monitor_get_reg },
2959     { "o2", 2, monitor_get_reg },
2960     { "o3", 3, monitor_get_reg },
2961     { "o4", 4, monitor_get_reg },
2962     { "o5", 5, monitor_get_reg },
2963     { "o6", 6, monitor_get_reg },
2964     { "o7", 7, monitor_get_reg },
2965     { "l0", 8, monitor_get_reg },
2966     { "l1", 9, monitor_get_reg },
2967     { "l2", 10, monitor_get_reg },
2968     { "l3", 11, monitor_get_reg },
2969     { "l4", 12, monitor_get_reg },
2970     { "l5", 13, monitor_get_reg },
2971     { "l6", 14, monitor_get_reg },
2972     { "l7", 15, monitor_get_reg },
2973     { "i0", 16, monitor_get_reg },
2974     { "i1", 17, monitor_get_reg },
2975     { "i2", 18, monitor_get_reg },
2976     { "i3", 19, monitor_get_reg },
2977     { "i4", 20, monitor_get_reg },
2978     { "i5", 21, monitor_get_reg },
2979     { "i6", 22, monitor_get_reg },
2980     { "i7", 23, monitor_get_reg },
2981     { "pc", offsetof(CPUState, pc) },
2982     { "npc", offsetof(CPUState, npc) },
2983     { "y", offsetof(CPUState, y) },
2984 #ifndef TARGET_SPARC64
2985     { "psr", 0, &monitor_get_psr, },
2986     { "wim", offsetof(CPUState, wim) },
2987 #endif
2988     { "tbr", offsetof(CPUState, tbr) },
2989     { "fsr", offsetof(CPUState, fsr) },
2990     { "f0", offsetof(CPUState, fpr[0]) },
2991     { "f1", offsetof(CPUState, fpr[1]) },
2992     { "f2", offsetof(CPUState, fpr[2]) },
2993     { "f3", offsetof(CPUState, fpr[3]) },
2994     { "f4", offsetof(CPUState, fpr[4]) },
2995     { "f5", offsetof(CPUState, fpr[5]) },
2996     { "f6", offsetof(CPUState, fpr[6]) },
2997     { "f7", offsetof(CPUState, fpr[7]) },
2998     { "f8", offsetof(CPUState, fpr[8]) },
2999     { "f9", offsetof(CPUState, fpr[9]) },
3000     { "f10", offsetof(CPUState, fpr[10]) },
3001     { "f11", offsetof(CPUState, fpr[11]) },
3002     { "f12", offsetof(CPUState, fpr[12]) },
3003     { "f13", offsetof(CPUState, fpr[13]) },
3004     { "f14", offsetof(CPUState, fpr[14]) },
3005     { "f15", offsetof(CPUState, fpr[15]) },
3006     { "f16", offsetof(CPUState, fpr[16]) },
3007     { "f17", offsetof(CPUState, fpr[17]) },
3008     { "f18", offsetof(CPUState, fpr[18]) },
3009     { "f19", offsetof(CPUState, fpr[19]) },
3010     { "f20", offsetof(CPUState, fpr[20]) },
3011     { "f21", offsetof(CPUState, fpr[21]) },
3012     { "f22", offsetof(CPUState, fpr[22]) },
3013     { "f23", offsetof(CPUState, fpr[23]) },
3014     { "f24", offsetof(CPUState, fpr[24]) },
3015     { "f25", offsetof(CPUState, fpr[25]) },
3016     { "f26", offsetof(CPUState, fpr[26]) },
3017     { "f27", offsetof(CPUState, fpr[27]) },
3018     { "f28", offsetof(CPUState, fpr[28]) },
3019     { "f29", offsetof(CPUState, fpr[29]) },
3020     { "f30", offsetof(CPUState, fpr[30]) },
3021     { "f31", offsetof(CPUState, fpr[31]) },
3022 #ifdef TARGET_SPARC64
3023     { "f32", offsetof(CPUState, fpr[32]) },
3024     { "f34", offsetof(CPUState, fpr[34]) },
3025     { "f36", offsetof(CPUState, fpr[36]) },
3026     { "f38", offsetof(CPUState, fpr[38]) },
3027     { "f40", offsetof(CPUState, fpr[40]) },
3028     { "f42", offsetof(CPUState, fpr[42]) },
3029     { "f44", offsetof(CPUState, fpr[44]) },
3030     { "f46", offsetof(CPUState, fpr[46]) },
3031     { "f48", offsetof(CPUState, fpr[48]) },
3032     { "f50", offsetof(CPUState, fpr[50]) },
3033     { "f52", offsetof(CPUState, fpr[52]) },
3034     { "f54", offsetof(CPUState, fpr[54]) },
3035     { "f56", offsetof(CPUState, fpr[56]) },
3036     { "f58", offsetof(CPUState, fpr[58]) },
3037     { "f60", offsetof(CPUState, fpr[60]) },
3038     { "f62", offsetof(CPUState, fpr[62]) },
3039     { "asi", offsetof(CPUState, asi) },
3040     { "pstate", offsetof(CPUState, pstate) },
3041     { "cansave", offsetof(CPUState, cansave) },
3042     { "canrestore", offsetof(CPUState, canrestore) },
3043     { "otherwin", offsetof(CPUState, otherwin) },
3044     { "wstate", offsetof(CPUState, wstate) },
3045     { "cleanwin", offsetof(CPUState, cleanwin) },
3046     { "fprs", offsetof(CPUState, fprs) },
3047 #endif
3048 #endif
3049     { NULL },
3050 };
3051
3052 static void expr_error(Monitor *mon, const char *msg)
3053 {
3054     monitor_printf(mon, "%s\n", msg);
3055     longjmp(expr_env, 1);
3056 }
3057
3058 /* return 0 if OK, -1 if not found */
3059 static int get_monitor_def(target_long *pval, const char *name)
3060 {
3061     const MonitorDef *md;
3062     void *ptr;
3063
3064     for(md = monitor_defs; md->name != NULL; md++) {
3065         if (compare_cmd(name, md->name)) {
3066             if (md->get_value) {
3067                 *pval = md->get_value(md, md->offset);
3068             } else {
3069                 CPUState *env = mon_get_cpu();
3070                 ptr = (uint8_t *)env + md->offset;
3071                 switch(md->type) {
3072                 case MD_I32:
3073                     *pval = *(int32_t *)ptr;
3074                     break;
3075                 case MD_TLONG:
3076                     *pval = *(target_long *)ptr;
3077                     break;
3078                 default:
3079                     *pval = 0;
3080                     break;
3081                 }
3082             }
3083             return 0;
3084         }
3085     }
3086     return -1;
3087 }
3088
3089 static void next(void)
3090 {
3091     if (*pch != '\0') {
3092         pch++;
3093         while (qemu_isspace(*pch))
3094             pch++;
3095     }
3096 }
3097
3098 static int64_t expr_sum(Monitor *mon);
3099
3100 static int64_t expr_unary(Monitor *mon)
3101 {
3102     int64_t n;
3103     char *p;
3104     int ret;
3105
3106     switch(*pch) {
3107     case '+':
3108         next();
3109         n = expr_unary(mon);
3110         break;
3111     case '-':
3112         next();
3113         n = -expr_unary(mon);
3114         break;
3115     case '~':
3116         next();
3117         n = ~expr_unary(mon);
3118         break;
3119     case '(':
3120         next();
3121         n = expr_sum(mon);
3122         if (*pch != ')') {
3123             expr_error(mon, "')' expected");
3124         }
3125         next();
3126         break;
3127     case '\'':
3128         pch++;
3129         if (*pch == '\0')
3130             expr_error(mon, "character constant expected");
3131         n = *pch;
3132         pch++;
3133         if (*pch != '\'')
3134             expr_error(mon, "missing terminating \' character");
3135         next();
3136         break;
3137     case '$':
3138         {
3139             char buf[128], *q;
3140             target_long reg=0;
3141
3142             pch++;
3143             q = buf;
3144             while ((*pch >= 'a' && *pch <= 'z') ||
3145                    (*pch >= 'A' && *pch <= 'Z') ||
3146                    (*pch >= '0' && *pch <= '9') ||
3147                    *pch == '_' || *pch == '.') {
3148                 if ((q - buf) < sizeof(buf) - 1)
3149                     *q++ = *pch;
3150                 pch++;
3151             }
3152             while (qemu_isspace(*pch))
3153                 pch++;
3154             *q = 0;
3155             ret = get_monitor_def(&reg, buf);
3156             if (ret < 0)
3157                 expr_error(mon, "unknown register");
3158             n = reg;
3159         }
3160         break;
3161     case '\0':
3162         expr_error(mon, "unexpected end of expression");
3163         n = 0;
3164         break;
3165     default:
3166 #if TARGET_PHYS_ADDR_BITS > 32
3167         n = strtoull(pch, &p, 0);
3168 #else
3169         n = strtoul(pch, &p, 0);
3170 #endif
3171         if (pch == p) {
3172             expr_error(mon, "invalid char in expression");
3173         }
3174         pch = p;
3175         while (qemu_isspace(*pch))
3176             pch++;
3177         break;
3178     }
3179     return n;
3180 }
3181
3182
3183 static int64_t expr_prod(Monitor *mon)
3184 {
3185     int64_t val, val2;
3186     int op;
3187
3188     val = expr_unary(mon);
3189     for(;;) {
3190         op = *pch;
3191         if (op != '*' && op != '/' && op != '%')
3192             break;
3193         next();
3194         val2 = expr_unary(mon);
3195         switch(op) {
3196         default:
3197         case '*':
3198             val *= val2;
3199             break;
3200         case '/':
3201         case '%':
3202             if (val2 == 0)
3203                 expr_error(mon, "division by zero");
3204             if (op == '/')
3205                 val /= val2;
3206             else
3207                 val %= val2;
3208             break;
3209         }
3210     }
3211     return val;
3212 }
3213
3214 static int64_t expr_logic(Monitor *mon)
3215 {
3216     int64_t val, val2;
3217     int op;
3218
3219     val = expr_prod(mon);
3220     for(;;) {
3221         op = *pch;
3222         if (op != '&' && op != '|' && op != '^')
3223             break;
3224         next();
3225         val2 = expr_prod(mon);
3226         switch(op) {
3227         default:
3228         case '&':
3229             val &= val2;
3230             break;
3231         case '|':
3232             val |= val2;
3233             break;
3234         case '^':
3235             val ^= val2;
3236             break;
3237         }
3238     }
3239     return val;
3240 }
3241
3242 static int64_t expr_sum(Monitor *mon)
3243 {
3244     int64_t val, val2;
3245     int op;
3246
3247     val = expr_logic(mon);
3248     for(;;) {
3249         op = *pch;
3250         if (op != '+' && op != '-')
3251             break;
3252         next();
3253         val2 = expr_logic(mon);
3254         if (op == '+')
3255             val += val2;
3256         else
3257             val -= val2;
3258     }
3259     return val;
3260 }
3261
3262 static int get_expr(Monitor *mon, int64_t *pval, const char **pp)
3263 {
3264     pch = *pp;
3265     if (setjmp(expr_env)) {
3266         *pp = pch;
3267         return -1;
3268     }
3269     while (qemu_isspace(*pch))
3270         pch++;
3271     *pval = expr_sum(mon);
3272     *pp = pch;
3273     return 0;
3274 }
3275
3276 static int get_str(char *buf, int buf_size, const char **pp)
3277 {
3278     const char *p;
3279     char *q;
3280     int c;
3281
3282     q = buf;
3283     p = *pp;
3284     while (qemu_isspace(*p))
3285         p++;
3286     if (*p == '\0') {
3287     fail:
3288         *q = '\0';
3289         *pp = p;
3290         return -1;
3291     }
3292     if (*p == '\"') {
3293         p++;
3294         while (*p != '\0' && *p != '\"') {
3295             if (*p == '\\') {
3296                 p++;
3297                 c = *p++;
3298                 switch(c) {
3299                 case 'n':
3300                     c = '\n';
3301                     break;
3302                 case 'r':
3303                     c = '\r';
3304                     break;
3305                 case '\\':
3306                 case '\'':
3307                 case '\"':
3308                     break;
3309                 default:
3310                     qemu_printf("unsupported escape code: '\\%c'\n", c);
3311                     goto fail;
3312                 }
3313                 if ((q - buf) < buf_size - 1) {
3314                     *q++ = c;
3315                 }
3316             } else {
3317                 if ((q - buf) < buf_size - 1) {
3318                     *q++ = *p;
3319                 }
3320                 p++;
3321             }
3322         }
3323         if (*p != '\"') {
3324             qemu_printf("unterminated string\n");
3325             goto fail;
3326         }
3327         p++;
3328     } else {
3329         while (*p != '\0' && !qemu_isspace(*p)) {
3330             if ((q - buf) < buf_size - 1) {
3331                 *q++ = *p;
3332             }
3333             p++;
3334         }
3335     }
3336     *q = '\0';
3337     *pp = p;
3338     return 0;
3339 }
3340
3341 /*
3342  * Store the command-name in cmdname, and return a pointer to
3343  * the remaining of the command string.
3344  */
3345 static const char *get_command_name(const char *cmdline,
3346                                     char *cmdname, size_t nlen)
3347 {
3348     size_t len;
3349     const char *p, *pstart;
3350
3351     p = cmdline;
3352     while (qemu_isspace(*p))
3353         p++;
3354     if (*p == '\0')
3355         return NULL;
3356     pstart = p;
3357     while (*p != '\0' && *p != '/' && !qemu_isspace(*p))
3358         p++;
3359     len = p - pstart;
3360     if (len > nlen - 1)
3361         len = nlen - 1;
3362     memcpy(cmdname, pstart, len);
3363     cmdname[len] = '\0';
3364     return p;
3365 }
3366
3367 /**
3368  * Read key of 'type' into 'key' and return the current
3369  * 'type' pointer.
3370  */
3371 static char *key_get_info(const char *type, char **key)
3372 {
3373     size_t len;
3374     char *p, *str;
3375
3376     if (*type == ',')
3377         type++;
3378
3379     p = strchr(type, ':');
3380     if (!p) {
3381         *key = NULL;
3382         return NULL;
3383     }
3384     len = p - type;
3385
3386     str = qemu_malloc(len + 1);
3387     memcpy(str, type, len);
3388     str[len] = '\0';
3389
3390     *key = str;
3391     return ++p;
3392 }
3393
3394 static int default_fmt_format = 'x';
3395 static int default_fmt_size = 4;
3396
3397 #define MAX_ARGS 16
3398
3399 static int is_valid_option(const char *c, const char *typestr)
3400 {
3401     char option[3];
3402
3403     option[0] = '-';
3404     option[1] = *c;
3405     option[2] = '\0';
3406
3407     typestr = strstr(typestr, option);
3408     return (typestr != NULL);
3409 }
3410
3411 static const mon_cmd_t *monitor_find_command(const char *cmdname)
3412 {
3413     const mon_cmd_t *cmd;
3414
3415     for (cmd = mon_cmds; cmd->name != NULL; cmd++) {
3416         if (compare_cmd(cmdname, cmd->name)) {
3417             return cmd;
3418         }
3419     }
3420
3421     return NULL;
3422 }
3423
3424 static const mon_cmd_t *monitor_parse_command(Monitor *mon,
3425                                               const char *cmdline,
3426                                               QDict *qdict)
3427 {
3428     const char *p, *typestr;
3429     int c;
3430     const mon_cmd_t *cmd;
3431     char cmdname[256];
3432     char buf[1024];
3433     char *key;
3434
3435 #ifdef DEBUG
3436     monitor_printf(mon, "command='%s'\n", cmdline);
3437 #endif
3438
3439     /* extract the command name */
3440     p = get_command_name(cmdline, cmdname, sizeof(cmdname));
3441     if (!p)
3442         return NULL;
3443
3444     cmd = monitor_find_command(cmdname);
3445     if (!cmd) {
3446         monitor_printf(mon, "unknown command: '%s'\n", cmdname);
3447         return NULL;
3448     }
3449
3450     /* parse the parameters */
3451     typestr = cmd->args_type;
3452     for(;;) {
3453         typestr = key_get_info(typestr, &key);
3454         if (!typestr)
3455             break;
3456         c = *typestr;
3457         typestr++;
3458         switch(c) {
3459         case 'F':
3460         case 'B':
3461         case 's':
3462             {
3463                 int ret;
3464
3465                 while (qemu_isspace(*p))
3466                     p++;
3467                 if (*typestr == '?') {
3468                     typestr++;
3469                     if (*p == '\0') {
3470                         /* no optional string: NULL argument */
3471                         break;
3472                     }
3473                 }
3474                 ret = get_str(buf, sizeof(buf), &p);
3475                 if (ret < 0) {
3476                     switch(c) {
3477                     case 'F':
3478                         monitor_printf(mon, "%s: filename expected\n",
3479                                        cmdname);
3480                         break;
3481                     case 'B':
3482                         monitor_printf(mon, "%s: block device name expected\n",
3483                                        cmdname);
3484                         break;
3485                     default:
3486                         monitor_printf(mon, "%s: string expected\n", cmdname);
3487                         break;
3488                     }
3489                     goto fail;
3490                 }
3491                 qdict_put(qdict, key, qstring_from_str(buf));
3492             }
3493             break;
3494         case '/':
3495             {
3496                 int count, format, size;
3497
3498                 while (qemu_isspace(*p))
3499                     p++;
3500                 if (*p == '/') {
3501                     /* format found */
3502                     p++;
3503                     count = 1;
3504                     if (qemu_isdigit(*p)) {
3505                         count = 0;
3506                         while (qemu_isdigit(*p)) {
3507                             count = count * 10 + (*p - '0');
3508                             p++;
3509                         }
3510                     }
3511                     size = -1;
3512                     format = -1;
3513                     for(;;) {
3514                         switch(*p) {
3515                         case 'o':
3516                         case 'd':
3517                         case 'u':
3518                         case 'x':
3519                         case 'i':
3520                         case 'c':
3521                             format = *p++;
3522                             break;
3523                         case 'b':
3524                             size = 1;
3525                             p++;
3526                             break;
3527                         case 'h':
3528                             size = 2;
3529                             p++;
3530                             break;
3531                         case 'w':
3532                             size = 4;
3533                             p++;
3534                             break;
3535                         case 'g':
3536                         case 'L':
3537                             size = 8;
3538                             p++;
3539                             break;
3540                         default:
3541                             goto next;
3542                         }
3543                     }
3544                 next:
3545                     if (*p != '\0' && !qemu_isspace(*p)) {
3546                         monitor_printf(mon, "invalid char in format: '%c'\n",
3547                                        *p);
3548                         goto fail;
3549                     }
3550                     if (format < 0)
3551                         format = default_fmt_format;
3552                     if (format != 'i') {
3553                         /* for 'i', not specifying a size gives -1 as size */
3554                         if (size < 0)
3555                             size = default_fmt_size;
3556                         default_fmt_size = size;
3557                     }
3558                     default_fmt_format = format;
3559                 } else {
3560                     count = 1;
3561                     format = default_fmt_format;
3562                     if (format != 'i') {
3563                         size = default_fmt_size;
3564                     } else {
3565                         size = -1;
3566                     }
3567                 }
3568                 qdict_put(qdict, "count", qint_from_int(count));
3569                 qdict_put(qdict, "format", qint_from_int(format));
3570                 qdict_put(qdict, "size", qint_from_int(size));
3571             }
3572             break;
3573         case 'i':
3574         case 'l':
3575         case 'M':
3576             {
3577                 int64_t val;
3578
3579                 while (qemu_isspace(*p))
3580                     p++;
3581                 if (*typestr == '?' || *typestr == '.') {
3582                     if (*typestr == '?') {
3583                         if (*p == '\0') {
3584                             typestr++;
3585                             break;
3586                         }
3587                     } else {
3588                         if (*p == '.') {
3589                             p++;
3590                             while (qemu_isspace(*p))
3591                                 p++;
3592                         } else {
3593                             typestr++;
3594                             break;
3595                         }
3596                     }
3597                     typestr++;
3598                 }
3599                 if (get_expr(mon, &val, &p))
3600                     goto fail;
3601                 /* Check if 'i' is greater than 32-bit */
3602                 if ((c == 'i') && ((val >> 32) & 0xffffffff)) {
3603                     monitor_printf(mon, "\'%s\' has failed: ", cmdname);
3604                     monitor_printf(mon, "integer is for 32-bit values\n");
3605                     goto fail;
3606                 } else if (c == 'M') {
3607                     val <<= 20;
3608                 }
3609                 qdict_put(qdict, key, qint_from_int(val));
3610             }
3611             break;
3612         case '-':
3613             {
3614                 const char *tmp = p;
3615                 int has_option, skip_key = 0;
3616                 /* option */
3617
3618                 c = *typestr++;
3619                 if (c == '\0')
3620                     goto bad_type;
3621                 while (qemu_isspace(*p))
3622                     p++;
3623                 has_option = 0;
3624                 if (*p == '-') {
3625                     p++;
3626                     if(c != *p) {
3627                         if(!is_valid_option(p, typestr)) {
3628
3629                             monitor_printf(mon, "%s: unsupported option -%c\n",
3630                                            cmdname, *p);
3631                             goto fail;
3632                         } else {
3633                             skip_key = 1;
3634                         }
3635                     }
3636                     if(skip_key) {
3637                         p = tmp;
3638                     } else {
3639                         p++;
3640                         has_option = 1;
3641                     }
3642                 }
3643                 qdict_put(qdict, key, qint_from_int(has_option));
3644             }
3645             break;
3646         default:
3647         bad_type:
3648             monitor_printf(mon, "%s: unknown type '%c'\n", cmdname, c);
3649             goto fail;
3650         }
3651         qemu_free(key);
3652         key = NULL;
3653     }
3654     /* check that all arguments were parsed */
3655     while (qemu_isspace(*p))
3656         p++;
3657     if (*p != '\0') {
3658         monitor_printf(mon, "%s: extraneous characters at the end of line\n",
3659                        cmdname);
3660         goto fail;
3661     }
3662
3663     return cmd;
3664
3665 fail:
3666     qemu_free(key);
3667     return NULL;
3668 }
3669
3670 static void monitor_print_error(Monitor *mon)
3671 {
3672     qerror_print(mon->error);
3673     QDECREF(mon->error);
3674     mon->error = NULL;
3675 }
3676
3677 static int is_async_return(const QObject *data)
3678 {
3679     return data && qdict_haskey(qobject_to_qdict(data), "__mon_async");
3680 }
3681
3682 static void monitor_call_handler(Monitor *mon, const mon_cmd_t *cmd,
3683                                  const QDict *params)
3684 {
3685     QObject *data = NULL;
3686
3687     cmd->mhandler.cmd_new(mon, params, &data);
3688
3689     if (is_async_return(data)) {
3690         /*
3691          * Asynchronous commands have no initial return data but they can
3692          * generate errors.  Data is returned via the async completion handler.
3693          */
3694         if (monitor_ctrl_mode(mon) && monitor_has_error(mon)) {
3695             monitor_protocol_emitter(mon, NULL);
3696         }
3697     } else if (monitor_ctrl_mode(mon)) {
3698         /* Monitor Protocol */
3699         monitor_protocol_emitter(mon, data);
3700     } else {
3701         /* User Protocol */
3702          if (data)
3703             cmd->user_print(mon, data);
3704     }
3705
3706     qobject_decref(data);
3707 }
3708
3709 static void handle_user_command(Monitor *mon, const char *cmdline)
3710 {
3711     QDict *qdict;
3712     const mon_cmd_t *cmd;
3713
3714     qdict = qdict_new();
3715
3716     cmd = monitor_parse_command(mon, cmdline, qdict);
3717     if (!cmd)
3718         goto out;
3719
3720     qemu_errors_to_mon(mon);
3721
3722     if (monitor_handler_is_async(cmd)) {
3723         user_async_cmd_handler(mon, cmd, qdict);
3724     } else if (monitor_handler_ported(cmd)) {
3725         monitor_call_handler(mon, cmd, qdict);
3726     } else {
3727         cmd->mhandler.cmd(mon, qdict);
3728     }
3729
3730     if (monitor_has_error(mon))
3731         monitor_print_error(mon);
3732
3733     qemu_errors_to_previous();
3734
3735 out:
3736     QDECREF(qdict);
3737 }
3738
3739 static void cmd_completion(const char *name, const char *list)
3740 {
3741     const char *p, *pstart;
3742     char cmd[128];
3743     int len;
3744
3745     p = list;
3746     for(;;) {
3747         pstart = p;
3748         p = strchr(p, '|');
3749         if (!p)
3750             p = pstart + strlen(pstart);
3751         len = p - pstart;
3752         if (len > sizeof(cmd) - 2)
3753             len = sizeof(cmd) - 2;
3754         memcpy(cmd, pstart, len);
3755         cmd[len] = '\0';
3756         if (name[0] == '\0' || !strncmp(name, cmd, strlen(name))) {
3757             readline_add_completion(cur_mon->rs, cmd);
3758         }
3759         if (*p == '\0')
3760             break;
3761         p++;
3762     }
3763 }
3764
3765 static void file_completion(const char *input)
3766 {
3767     DIR *ffs;
3768     struct dirent *d;
3769     char path[1024];
3770     char file[1024], file_prefix[1024];
3771     int input_path_len;
3772     const char *p;
3773
3774     p = strrchr(input, '/');
3775     if (!p) {
3776         input_path_len = 0;
3777         pstrcpy(file_prefix, sizeof(file_prefix), input);
3778         pstrcpy(path, sizeof(path), ".");
3779     } else {
3780         input_path_len = p - input + 1;
3781         memcpy(path, input, input_path_len);
3782         if (input_path_len > sizeof(path) - 1)
3783             input_path_len = sizeof(path) - 1;
3784         path[input_path_len] = '\0';
3785         pstrcpy(file_prefix, sizeof(file_prefix), p + 1);
3786     }
3787 #ifdef DEBUG_COMPLETION
3788     monitor_printf(cur_mon, "input='%s' path='%s' prefix='%s'\n",
3789                    input, path, file_prefix);
3790 #endif
3791     ffs = opendir(path);
3792     if (!ffs)
3793         return;
3794     for(;;) {
3795         struct stat sb;
3796         d = readdir(ffs);
3797         if (!d)
3798             break;
3799         if (strstart(d->d_name, file_prefix, NULL)) {
3800             memcpy(file, input, input_path_len);
3801             if (input_path_len < sizeof(file))
3802                 pstrcpy(file + input_path_len, sizeof(file) - input_path_len,
3803                         d->d_name);
3804             /* stat the file to find out if it's a directory.
3805              * In that case add a slash to speed up typing long paths
3806              */
3807             stat(file, &sb);
3808             if(S_ISDIR(sb.st_mode))
3809                 pstrcat(file, sizeof(file), "/");
3810             readline_add_completion(cur_mon->rs, file);
3811         }
3812     }
3813     closedir(ffs);
3814 }
3815
3816 static void block_completion_it(void *opaque, BlockDriverState *bs)
3817 {
3818     const char *name = bdrv_get_device_name(bs);
3819     const char *input = opaque;
3820
3821     if (input[0] == '\0' ||
3822         !strncmp(name, (char *)input, strlen(input))) {
3823         readline_add_completion(cur_mon->rs, name);
3824     }
3825 }
3826
3827 /* NOTE: this parser is an approximate form of the real command parser */
3828 static void parse_cmdline(const char *cmdline,
3829                          int *pnb_args, char **args)
3830 {
3831     const char *p;
3832     int nb_args, ret;
3833     char buf[1024];
3834
3835     p = cmdline;
3836     nb_args = 0;
3837     for(;;) {
3838         while (qemu_isspace(*p))
3839             p++;
3840         if (*p == '\0')
3841             break;
3842         if (nb_args >= MAX_ARGS)
3843             break;
3844         ret = get_str(buf, sizeof(buf), &p);
3845         args[nb_args] = qemu_strdup(buf);
3846         nb_args++;
3847         if (ret < 0)
3848             break;
3849     }
3850     *pnb_args = nb_args;
3851 }
3852
3853 static const char *next_arg_type(const char *typestr)
3854 {
3855     const char *p = strchr(typestr, ':');
3856     return (p != NULL ? ++p : typestr);
3857 }
3858
3859 static void monitor_find_completion(const char *cmdline)
3860 {
3861     const char *cmdname;
3862     char *args[MAX_ARGS];
3863     int nb_args, i, len;
3864     const char *ptype, *str;
3865     const mon_cmd_t *cmd;
3866     const KeyDef *key;
3867
3868     parse_cmdline(cmdline, &nb_args, args);
3869 #ifdef DEBUG_COMPLETION
3870     for(i = 0; i < nb_args; i++) {
3871         monitor_printf(cur_mon, "arg%d = '%s'\n", i, (char *)args[i]);
3872     }
3873 #endif
3874
3875     /* if the line ends with a space, it means we want to complete the
3876        next arg */
3877     len = strlen(cmdline);
3878     if (len > 0 && qemu_isspace(cmdline[len - 1])) {
3879         if (nb_args >= MAX_ARGS)
3880             return;
3881         args[nb_args++] = qemu_strdup("");
3882     }
3883     if (nb_args <= 1) {
3884         /* command completion */
3885         if (nb_args == 0)
3886             cmdname = "";
3887         else
3888             cmdname = args[0];
3889         readline_set_completion_index(cur_mon->rs, strlen(cmdname));
3890         for(cmd = mon_cmds; cmd->name != NULL; cmd++) {
3891             cmd_completion(cmdname, cmd->name);
3892         }
3893     } else {
3894         /* find the command */
3895         for(cmd = mon_cmds; cmd->name != NULL; cmd++) {
3896             if (compare_cmd(args[0], cmd->name))
3897                 goto found;
3898         }
3899         return;
3900     found:
3901         ptype = next_arg_type(cmd->args_type);
3902         for(i = 0; i < nb_args - 2; i++) {
3903             if (*ptype != '\0') {
3904                 ptype = next_arg_type(ptype);
3905                 while (*ptype == '?')
3906                     ptype = next_arg_type(ptype);
3907             }
3908         }
3909         str = args[nb_args - 1];
3910         if (*ptype == '-' && ptype[1] != '\0') {
3911             ptype += 2;
3912         }
3913         switch(*ptype) {
3914         case 'F':
3915             /* file completion */
3916             readline_set_completion_index(cur_mon->rs, strlen(str));
3917             file_completion(str);
3918             break;
3919         case 'B':
3920             /* block device name completion */
3921             readline_set_completion_index(cur_mon->rs, strlen(str));
3922             bdrv_iterate(block_completion_it, (void *)str);
3923             break;
3924         case 's':
3925             /* XXX: more generic ? */
3926             if (!strcmp(cmd->name, "info")) {
3927                 readline_set_completion_index(cur_mon->rs, strlen(str));
3928                 for(cmd = info_cmds; cmd->name != NULL; cmd++) {
3929                     cmd_completion(str, cmd->name);
3930                 }
3931             } else if (!strcmp(cmd->name, "sendkey")) {
3932                 char *sep = strrchr(str, '-');
3933                 if (sep)
3934                     str = sep + 1;
3935                 readline_set_completion_index(cur_mon->rs, strlen(str));
3936                 for(key = key_defs; key->name != NULL; key++) {
3937                     cmd_completion(str, key->name);
3938                 }
3939             } else if (!strcmp(cmd->name, "help|?")) {
3940                 readline_set_completion_index(cur_mon->rs, strlen(str));
3941                 for (cmd = mon_cmds; cmd->name != NULL; cmd++) {
3942                     cmd_completion(str, cmd->name);
3943                 }
3944             }
3945             break;
3946         default:
3947             break;
3948         }
3949     }
3950     for(i = 0; i < nb_args; i++)
3951         qemu_free(args[i]);
3952 }
3953
3954 static int monitor_can_read(void *opaque)
3955 {
3956     Monitor *mon = opaque;
3957
3958     return (mon->suspend_cnt == 0) ? 1 : 0;
3959 }
3960
3961 typedef struct CmdArgs {
3962     QString *name;
3963     int type;
3964     int flag;
3965     int optional;
3966 } CmdArgs;
3967
3968 static int check_opt(const CmdArgs *cmd_args, const char *name, QDict *args)
3969 {
3970     if (!cmd_args->optional) {
3971         qemu_error_new(QERR_MISSING_PARAMETER, name);
3972         return -1;
3973     }
3974
3975     if (cmd_args->type == '-') {
3976         /* handlers expect a value, they need to be changed */
3977         qdict_put(args, name, qint_from_int(0));
3978     }
3979
3980     return 0;
3981 }
3982
3983 static int check_arg(const CmdArgs *cmd_args, QDict *args)
3984 {
3985     QObject *value;
3986     const char *name;
3987
3988     name = qstring_get_str(cmd_args->name);
3989
3990     if (!args) {
3991         return check_opt(cmd_args, name, args);
3992     }
3993
3994     value = qdict_get(args, name);
3995     if (!value) {
3996         return check_opt(cmd_args, name, args);
3997     }
3998
3999     switch (cmd_args->type) {
4000         case 'F':
4001         case 'B':
4002         case 's':
4003             if (qobject_type(value) != QTYPE_QSTRING) {
4004                 qemu_error_new(QERR_INVALID_PARAMETER_TYPE, name, "string");
4005                 return -1;
4006             }
4007             break;
4008         case '/': {
4009             int i;
4010             const char *keys[] = { "count", "format", "size", NULL };
4011
4012             for (i = 0; keys[i]; i++) {
4013                 QObject *obj = qdict_get(args, keys[i]);
4014                 if (!obj) {
4015                     qemu_error_new(QERR_MISSING_PARAMETER, name);
4016                     return -1;
4017                 }
4018                 if (qobject_type(obj) != QTYPE_QINT) {
4019                     qemu_error_new(QERR_INVALID_PARAMETER_TYPE, name, "int");
4020                     return -1;
4021                 }
4022             }
4023             break;
4024         }
4025         case 'i':
4026         case 'l':
4027         case 'M':
4028             if (qobject_type(value) != QTYPE_QINT) {
4029                 qemu_error_new(QERR_INVALID_PARAMETER_TYPE, name, "int");
4030                 return -1;
4031             }
4032             break;
4033         case '-':
4034             if (qobject_type(value) != QTYPE_QINT &&
4035                 qobject_type(value) != QTYPE_QBOOL) {
4036                 qemu_error_new(QERR_INVALID_PARAMETER_TYPE, name, "bool");
4037                 return -1;
4038             }
4039             if (qobject_type(value) == QTYPE_QBOOL) {
4040                 /* handlers expect a QInt, they need to be changed */
4041                 qdict_put(args, name,
4042                          qint_from_int(qbool_get_int(qobject_to_qbool(value))));
4043             }
4044             break;
4045         default:
4046             /* impossible */
4047             abort();
4048     }
4049
4050     return 0;
4051 }
4052
4053 static void cmd_args_init(CmdArgs *cmd_args)
4054 {
4055     cmd_args->name = qstring_new();
4056     cmd_args->type = cmd_args->flag = cmd_args->optional = 0;
4057 }
4058
4059 /*
4060  * This is not trivial, we have to parse Monitor command's argument
4061  * type syntax to be able to check the arguments provided by clients.
4062  *
4063  * In the near future we will be using an array for that and will be
4064  * able to drop all this parsing...
4065  */
4066 static int monitor_check_qmp_args(const mon_cmd_t *cmd, QDict *args)
4067 {
4068     int err;
4069     const char *p;
4070     CmdArgs cmd_args;
4071
4072     if (cmd->args_type == NULL) {
4073         return (qdict_size(args) == 0 ? 0 : -1);
4074     }
4075
4076     err = 0;
4077     cmd_args_init(&cmd_args);
4078
4079     for (p = cmd->args_type;; p++) {
4080         if (*p == ':') {
4081             cmd_args.type = *++p;
4082             p++;
4083             if (cmd_args.type == '-') {
4084                 cmd_args.flag = *p++;
4085                 cmd_args.optional = 1;
4086             } else if (*p == '?') {
4087                 cmd_args.optional = 1;
4088                 p++;
4089             }
4090
4091             assert(*p == ',' || *p == '\0');
4092             err = check_arg(&cmd_args, args);
4093
4094             QDECREF(cmd_args.name);
4095             cmd_args_init(&cmd_args);
4096
4097             if (err < 0) {
4098                 break;
4099             }
4100         } else {
4101             qstring_append_chr(cmd_args.name, *p);
4102         }
4103
4104         if (*p == '\0') {
4105             break;
4106         }
4107     }
4108
4109     QDECREF(cmd_args.name);
4110     return err;
4111 }
4112
4113 static void handle_qmp_command(JSONMessageParser *parser, QList *tokens)
4114 {
4115     int err;
4116     QObject *obj;
4117     QDict *input, *args;
4118     const mon_cmd_t *cmd;
4119     Monitor *mon = cur_mon;
4120     const char *cmd_name, *info_item;
4121
4122     args = NULL;
4123     qemu_errors_to_mon(mon);
4124
4125     obj = json_parser_parse(tokens, NULL);
4126     if (!obj) {
4127         // FIXME: should be triggered in json_parser_parse()
4128         qemu_error_new(QERR_JSON_PARSING);
4129         goto err_out;
4130     } else if (qobject_type(obj) != QTYPE_QDICT) {
4131         qemu_error_new(QERR_QMP_BAD_INPUT_OBJECT, "object");
4132         qobject_decref(obj);
4133         goto err_out;
4134     }
4135
4136     input = qobject_to_qdict(obj);
4137
4138     mon->mc->id = qdict_get(input, "id");
4139     qobject_incref(mon->mc->id);
4140
4141     obj = qdict_get(input, "execute");
4142     if (!obj) {
4143         qemu_error_new(QERR_QMP_BAD_INPUT_OBJECT, "execute");
4144         goto err_input;
4145     } else if (qobject_type(obj) != QTYPE_QSTRING) {
4146         qemu_error_new(QERR_QMP_BAD_INPUT_OBJECT, "string");
4147         goto err_input;
4148     }
4149
4150     cmd_name = qstring_get_str(qobject_to_qstring(obj));
4151
4152     /*
4153      * XXX: We need this special case until we get info handlers
4154      * converted into 'query-' commands
4155      */
4156     if (compare_cmd(cmd_name, "info")) {
4157         qemu_error_new(QERR_COMMAND_NOT_FOUND, cmd_name);
4158         goto err_input;
4159     } else if (strstart(cmd_name, "query-", &info_item)) {
4160         cmd = monitor_find_command("info");
4161         qdict_put_obj(input, "arguments",
4162                       qobject_from_jsonf("{ 'item': %s }", info_item));
4163     } else {
4164         cmd = monitor_find_command(cmd_name);
4165         if (!cmd || !monitor_handler_ported(cmd)) {
4166             qemu_error_new(QERR_COMMAND_NOT_FOUND, cmd_name);
4167             goto err_input;
4168         }
4169     }
4170
4171     obj = qdict_get(input, "arguments");
4172     if (!obj) {
4173         args = qdict_new();
4174     } else {
4175         args = qobject_to_qdict(obj);
4176         QINCREF(args);
4177     }
4178
4179     QDECREF(input);
4180
4181     err = monitor_check_qmp_args(cmd, args);
4182     if (err < 0) {
4183         goto err_out;
4184     }
4185
4186     if (monitor_handler_is_async(cmd)) {
4187         qmp_async_cmd_handler(mon, cmd, args);
4188     } else {
4189         monitor_call_handler(mon, cmd, args);
4190     }
4191     goto out;
4192
4193 err_input:
4194     QDECREF(input);
4195 err_out:
4196     monitor_protocol_emitter(mon, NULL);
4197 out:
4198     QDECREF(args);
4199     qemu_errors_to_previous();
4200 }
4201
4202 /**
4203  * monitor_control_read(): Read and handle QMP input
4204  */
4205 static void monitor_control_read(void *opaque, const uint8_t *buf, int size)
4206 {
4207     Monitor *old_mon = cur_mon;
4208
4209     cur_mon = opaque;
4210
4211     json_message_parser_feed(&cur_mon->mc->parser, (const char *) buf, size);
4212
4213     cur_mon = old_mon;
4214 }
4215
4216 static void monitor_read(void *opaque, const uint8_t *buf, int size)
4217 {
4218     Monitor *old_mon = cur_mon;
4219     int i;
4220
4221     cur_mon = opaque;
4222
4223     if (cur_mon->rs) {
4224         for (i = 0; i < size; i++)
4225             readline_handle_byte(cur_mon->rs, buf[i]);
4226     } else {
4227         if (size == 0 || buf[size - 1] != 0)
4228             monitor_printf(cur_mon, "corrupted command\n");
4229         else
4230             handle_user_command(cur_mon, (char *)buf);
4231     }
4232
4233     cur_mon = old_mon;
4234 }
4235
4236 static void monitor_command_cb(Monitor *mon, const char *cmdline, void *opaque)
4237 {
4238     monitor_suspend(mon);
4239     handle_user_command(mon, cmdline);
4240     monitor_resume(mon);
4241 }
4242
4243 int monitor_suspend(Monitor *mon)
4244 {
4245     if (!mon->rs)
4246         return -ENOTTY;
4247     mon->suspend_cnt++;
4248     return 0;
4249 }
4250
4251 void monitor_resume(Monitor *mon)
4252 {
4253     if (!mon->rs)
4254         return;
4255     if (--mon->suspend_cnt == 0)
4256         readline_show_prompt(mon->rs);
4257 }
4258
4259 /**
4260  * monitor_control_event(): Print QMP gretting
4261  */
4262 static void monitor_control_event(void *opaque, int event)
4263 {
4264     if (event == CHR_EVENT_OPENED) {
4265         QObject *data;
4266         Monitor *mon = opaque;
4267
4268         json_message_parser_init(&mon->mc->parser, handle_qmp_command);
4269
4270         data = qobject_from_jsonf("{ 'QMP': { 'capabilities': [] } }");
4271         assert(data != NULL);
4272
4273         monitor_json_emitter(mon, data);
4274         qobject_decref(data);
4275     }
4276 }
4277
4278 static void monitor_event(void *opaque, int event)
4279 {
4280     Monitor *mon = opaque;
4281
4282     switch (event) {
4283     case CHR_EVENT_MUX_IN:
4284         mon->mux_out = 0;
4285         if (mon->reset_seen) {
4286             readline_restart(mon->rs);
4287             monitor_resume(mon);
4288             monitor_flush(mon);
4289         } else {
4290             mon->suspend_cnt = 0;
4291         }
4292         break;
4293
4294     case CHR_EVENT_MUX_OUT:
4295         if (mon->reset_seen) {
4296             if (mon->suspend_cnt == 0) {
4297                 monitor_printf(mon, "\n");
4298             }
4299             monitor_flush(mon);
4300             monitor_suspend(mon);
4301         } else {
4302             mon->suspend_cnt++;
4303         }
4304         mon->mux_out = 1;
4305         break;
4306
4307     case CHR_EVENT_OPENED:
4308         monitor_printf(mon, "QEMU %s monitor - type 'help' for more "
4309                        "information\n", QEMU_VERSION);
4310         if (!mon->mux_out) {
4311             readline_show_prompt(mon->rs);
4312         }
4313         mon->reset_seen = 1;
4314         break;
4315     }
4316 }
4317
4318
4319 /*
4320  * Local variables:
4321  *  c-indent-level: 4
4322  *  c-basic-offset: 4
4323  *  tab-width: 8
4324  * End:
4325  */
4326
4327 void monitor_init(CharDriverState *chr, int flags)
4328 {
4329     static int is_first_init = 1;
4330     Monitor *mon;
4331
4332     if (is_first_init) {
4333         key_timer = qemu_new_timer(vm_clock, release_keys, NULL);
4334         is_first_init = 0;
4335     }
4336
4337     mon = qemu_mallocz(sizeof(*mon));
4338
4339     mon->chr = chr;
4340     mon->flags = flags;
4341     if (flags & MONITOR_USE_READLINE) {
4342         mon->rs = readline_init(mon, monitor_find_completion);
4343         monitor_read_command(mon, 0);
4344     }
4345
4346     if (monitor_ctrl_mode(mon)) {
4347         mon->mc = qemu_mallocz(sizeof(MonitorControl));
4348         /* Control mode requires special handlers */
4349         qemu_chr_add_handlers(chr, monitor_can_read, monitor_control_read,
4350                               monitor_control_event, mon);
4351     } else {
4352         qemu_chr_add_handlers(chr, monitor_can_read, monitor_read,
4353                               monitor_event, mon);
4354     }
4355
4356     QLIST_INSERT_HEAD(&mon_list, mon, entry);
4357     if (!cur_mon || (flags & MONITOR_IS_DEFAULT))
4358         cur_mon = mon;
4359 }
4360
4361 static void bdrv_password_cb(Monitor *mon, const char *password, void *opaque)
4362 {
4363     BlockDriverState *bs = opaque;
4364     int ret = 0;
4365
4366     if (bdrv_set_key(bs, password) != 0) {
4367         monitor_printf(mon, "invalid password\n");
4368         ret = -EPERM;
4369     }
4370     if (mon->password_completion_cb)
4371         mon->password_completion_cb(mon->password_opaque, ret);
4372
4373     monitor_read_command(mon, 1);
4374 }
4375
4376 void monitor_read_bdrv_key_start(Monitor *mon, BlockDriverState *bs,
4377                                  BlockDriverCompletionFunc *completion_cb,
4378                                  void *opaque)
4379 {
4380     int err;
4381
4382     if (!bdrv_key_required(bs)) {
4383         if (completion_cb)
4384             completion_cb(opaque, 0);
4385         return;
4386     }
4387
4388     if (monitor_ctrl_mode(mon)) {
4389         qemu_error_new(QERR_DEVICE_ENCRYPTED, bdrv_get_device_name(bs));
4390         return;
4391     }
4392
4393     monitor_printf(mon, "%s (%s) is encrypted.\n", bdrv_get_device_name(bs),
4394                    bdrv_get_encrypted_filename(bs));
4395
4396     mon->password_completion_cb = completion_cb;
4397     mon->password_opaque = opaque;
4398
4399     err = monitor_read_password(mon, bdrv_password_cb, bs);
4400
4401     if (err && completion_cb)
4402         completion_cb(opaque, err);
4403 }
4404
4405 typedef struct QemuErrorSink QemuErrorSink;
4406 struct QemuErrorSink {
4407     enum {
4408         ERR_SINK_FILE,
4409         ERR_SINK_MONITOR,
4410     } dest;
4411     union {
4412         FILE    *fp;
4413         Monitor *mon;
4414     };
4415     QemuErrorSink *previous;
4416 };
4417
4418 static QemuErrorSink *qemu_error_sink;
4419
4420 void qemu_errors_to_file(FILE *fp)
4421 {
4422     QemuErrorSink *sink;
4423
4424     sink = qemu_mallocz(sizeof(*sink));
4425     sink->dest = ERR_SINK_FILE;
4426     sink->fp = fp;
4427     sink->previous = qemu_error_sink;
4428     qemu_error_sink = sink;
4429 }
4430
4431 void qemu_errors_to_mon(Monitor *mon)
4432 {
4433     QemuErrorSink *sink;
4434
4435     sink = qemu_mallocz(sizeof(*sink));
4436     sink->dest = ERR_SINK_MONITOR;
4437     sink->mon = mon;
4438     sink->previous = qemu_error_sink;
4439     qemu_error_sink = sink;
4440 }
4441
4442 void qemu_errors_to_previous(void)
4443 {
4444     QemuErrorSink *sink;
4445
4446     assert(qemu_error_sink != NULL);
4447     sink = qemu_error_sink;
4448     qemu_error_sink = sink->previous;
4449     qemu_free(sink);
4450 }
4451
4452 void qemu_error(const char *fmt, ...)
4453 {
4454     va_list args;
4455
4456     assert(qemu_error_sink != NULL);
4457     switch (qemu_error_sink->dest) {
4458     case ERR_SINK_FILE:
4459         va_start(args, fmt);
4460         vfprintf(qemu_error_sink->fp, fmt, args);
4461         va_end(args);
4462         break;
4463     case ERR_SINK_MONITOR:
4464         va_start(args, fmt);
4465         monitor_vprintf(qemu_error_sink->mon, fmt, args);
4466         va_end(args);
4467         break;
4468     }
4469 }
4470
4471 void qemu_error_internal(const char *file, int linenr, const char *func,
4472                          const char *fmt, ...)
4473 {
4474     va_list va;
4475     QError *qerror;
4476
4477     assert(qemu_error_sink != NULL);
4478
4479     va_start(va, fmt);
4480     qerror = qerror_from_info(file, linenr, func, fmt, &va);
4481     va_end(va);
4482
4483     switch (qemu_error_sink->dest) {
4484     case ERR_SINK_FILE:
4485         qerror_print(qerror);
4486         QDECREF(qerror);
4487         break;
4488     case ERR_SINK_MONITOR:
4489         assert(qemu_error_sink->mon->error == NULL);
4490         qemu_error_sink->mon->error = qerror;
4491         break;
4492     }
4493 }