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 "qfloat.h"
  51 #include "qlist.h"
  52 #include "qbool.h"
  53 #include "qstring.h"
  54 #include "qjson.h"
  55 #include "json-streamer.h"
  56 #include "json-parser.h"
  57 #include "osdep.h"
  58
  59 //#define DEBUG
  60 //#define DEBUG_COMPLETION
  61
  62 /*
  63  * Supported types:
  64  *
  65  * 'F'          filename
  66  * 'B'          block device name
  67  * 's'          string (accept optional quote)
  68  * 'O'          option string of the form NAME=VALUE,...
  69  *              parsed according to QemuOptsList given by its name
  70  *              Example: 'device:O' uses qemu_device_opts.
  71  *              Restriction: only lists with empty desc are supported
  72  *              TODO lift the restriction
  73  * 'i'          32 bit integer
  74  * 'l'          target long (32 or 64 bit)
  75  * 'M'          just like 'l', except in user mode the value is
  76  *              multiplied by 2^20 (think Mebibyte)
  77  * 'f'          double
  78  *              user mode accepts an optional G, g, M, m, K, k suffix,
  79  *              which multiplies the value by 2^30 for suffixes G and
  80  *              g, 2^20 for M and m, 2^10 for K and k
  81  * 'T'          double
  82  *              user mode accepts an optional ms, us, ns suffix,
  83  *              which divides the value by 1e3, 1e6, 1e9, respectively
  84  * '/'          optional gdb-like print format (like "/10x")
  85  *
  86  * '?'          optional type (for all types, except '/')
  87  * '.'          other form of optional type (for 'i' and 'l')
  88  * 'b'          boolean
  89  *              user mode accepts "on" or "off"
  90  * '-'          optional parameter (eg. '-f')
  91  *
  92  */
  93
  94 typedef struct MonitorCompletionData MonitorCompletionData;
  95 struct MonitorCompletionData {
  96     Monitor *mon;
  97     void (*user_print)(Monitor *mon, const QObject *data);
  98 };
  99
 100 typedef struct mon_cmd_t {
 101     const char *name;
 102     const char *args_type;
 103     const char *params;
 104     const char *help;
 105     void (*user_print)(Monitor *mon, const QObject *data);
 106     union {
 107         void (*info)(Monitor *mon);
 108         void (*info_new)(Monitor *mon, QObject **ret_data);
 109         int  (*info_async)(Monitor *mon, MonitorCompletion *cb, void *opaque);
 110         void (*cmd)(Monitor *mon, const QDict *qdict);
 111         int  (*cmd_new)(Monitor *mon, const QDict *params, QObject **ret_data);
 112         int  (*cmd_async)(Monitor *mon, const QDict *params,
 113                           MonitorCompletion *cb, void *opaque);
 114     } mhandler;
 115     int async;
 116 } mon_cmd_t;
 117
 118 /* file descriptors passed via SCM_RIGHTS */
 119 typedef struct mon_fd_t mon_fd_t;
 120 struct mon_fd_t {
 121     char *name;
 122     int fd;
 123     QLIST_ENTRY(mon_fd_t) next;
 124 };
 125
 126 typedef struct MonitorControl {
 127     QObject *id;
 128     JSONMessageParser parser;
 129     int command_mode;
 130 } MonitorControl;
 131
 132 struct Monitor {
 133     CharDriverState *chr;
 134     int mux_out;
 135     int reset_seen;
 136     int flags;
 137     int suspend_cnt;
 138     uint8_t outbuf[1024];
 139     int outbuf_index;
 140     ReadLineState *rs;
 141     MonitorControl *mc;
 142     CPUState *mon_cpu;
 143     BlockDriverCompletionFunc *password_completion_cb;
 144     void *password_opaque;
 145 #ifdef CONFIG_DEBUG_MONITOR
 146     int print_calls_nr;
 147 #endif
 148     QError *error;
 149     QLIST_HEAD(,mon_fd_t) fds;
 150     QLIST_ENTRY(Monitor) entry;
 151 };
 152
 153 #ifdef CONFIG_DEBUG_MONITOR
 154 #define MON_DEBUG(fmt, ...) do {    \
 155     fprintf(stderr, "Monitor: ");       \
 156     fprintf(stderr, fmt, ## __VA_ARGS__); } while (0)
 157
 158 static inline void mon_print_count_inc(Monitor *mon)
 159 {
 160     mon->print_calls_nr++;
 161 }
 162
 163 static inline void mon_print_count_init(Monitor *mon)
 164 {
 165     mon->print_calls_nr = 0;
 166 }
 167
 168 static inline int mon_print_count_get(const Monitor *mon)
 169 {
 170     return mon->print_calls_nr;
 171 }
 172
 173 #else /* !CONFIG_DEBUG_MONITOR */
 174 #define MON_DEBUG(fmt, ...) do { } while (0)
 175 static inline void mon_print_count_inc(Monitor *mon) { }
 176 static inline void mon_print_count_init(Monitor *mon) { }
 177 static inline int mon_print_count_get(const Monitor *mon) { return 0; }
 178 #endif /* CONFIG_DEBUG_MONITOR */
 179
 180 static QLIST_HEAD(mon_list, Monitor) mon_list;
 181
 182 static const mon_cmd_t mon_cmds[];
 183 static const mon_cmd_t info_cmds[];
 184
 185 Monitor *cur_mon;
 186 Monitor *default_mon;
 187
 188 static void monitor_command_cb(Monitor *mon, const char *cmdline,
 189                                void *opaque);
 190
 191 static inline int qmp_cmd_mode(const Monitor *mon)
 192 {
 193     return (mon->mc ? mon->mc->command_mode : 0);
 194 }
 195
 196 /* Return true if in control mode, false otherwise */
 197 static inline int monitor_ctrl_mode(const Monitor *mon)
 198 {
 199     return (mon->flags & MONITOR_USE_CONTROL);
 200 }
 201
 202 /* Return non-zero iff we have a current monitor, and it is in QMP mode.  */
 203 int monitor_cur_is_qmp(void)
 204 {
 205     return cur_mon && monitor_ctrl_mode(cur_mon);
 206 }
 207
 208 static void monitor_read_command(Monitor *mon, int show_prompt)
 209 {
 210     if (!mon->rs)
 211         return;
 212
 213     readline_start(mon->rs, "(qemu) ", 0, monitor_command_cb, NULL);
 214     if (show_prompt)
 215         readline_show_prompt(mon->rs);
 216 }
 217
 218 static int monitor_read_password(Monitor *mon, ReadLineFunc *readline_func,
 219                                  void *opaque)
 220 {
 221     if (monitor_ctrl_mode(mon)) {
 222         qerror_report(QERR_MISSING_PARAMETER, "password");
 223         return -EINVAL;
 224     } else if (mon->rs) {
 225         readline_start(mon->rs, "Password: ", 1, readline_func, opaque);
 226         /* prompt is printed on return from the command handler */
 227         return 0;
 228     } else {
 229         monitor_printf(mon, "terminal does not support password prompting\n");
 230         return -ENOTTY;
 231     }
 232 }
 233
 234 void monitor_flush(Monitor *mon)
 235 {
 236     if (mon && mon->outbuf_index != 0 && !mon->mux_out) {
 237         qemu_chr_write(mon->chr, mon->outbuf, mon->outbuf_index);
 238         mon->outbuf_index = 0;
 239     }
 240 }
 241
 242 /* flush at every end of line or if the buffer is full */
 243 static void monitor_puts(Monitor *mon, const char *str)
 244 {
 245     char c;
 246
 247     for(;;) {
 248         c = *str++;
 249         if (c == '\0')
 250             break;
 251         if (c == '\n')
 252             mon->outbuf[mon->outbuf_index++] = '\r';
 253         mon->outbuf[mon->outbuf_index++] = c;
 254         if (mon->outbuf_index >= (sizeof(mon->outbuf) - 1)
 255             || c == '\n')
 256             monitor_flush(mon);
 257     }
 258 }
 259
 260 void monitor_vprintf(Monitor *mon, const char *fmt, va_list ap)
 261 {
 262     char buf[4096];
 263
 264     if (!mon)
 265         return;
 266
 267     mon_print_count_inc(mon);
 268
 269     if (monitor_ctrl_mode(mon)) {
 270         return;
 271     }
 272
 273     vsnprintf(buf, sizeof(buf), fmt, ap);
 274     monitor_puts(mon, buf);
 275 }
 276
 277 void monitor_printf(Monitor *mon, const char *fmt, ...)
 278 {
 279     va_list ap;
 280     va_start(ap, fmt);
 281     monitor_vprintf(mon, fmt, ap);
 282     va_end(ap);
 283 }
 284
 285 void monitor_print_filename(Monitor *mon, const char *filename)
 286 {
 287     int i;
 288
 289     for (i = 0; filename[i]; i++) {
 290         switch (filename[i]) {
 291         case ' ':
 292         case '"':
 293         case '\\':
 294             monitor_printf(mon, "\\%c", filename[i]);
 295             break;
 296         case '\t':
 297             monitor_printf(mon, "\\t");
 298             break;
 299         case '\r':
 300             monitor_printf(mon, "\\r");
 301             break;
 302         case '\n':
 303             monitor_printf(mon, "\\n");
 304             break;
 305         default:
 306             monitor_printf(mon, "%c", filename[i]);
 307             break;
 308         }
 309     }
 310 }
 311
 312 static int monitor_fprintf(FILE *stream, const char *fmt, ...)
 313 {
 314     va_list ap;
 315     va_start(ap, fmt);
 316     monitor_vprintf((Monitor *)stream, fmt, ap);
 317     va_end(ap);
 318     return 0;
 319 }
 320
 321 static void monitor_user_noop(Monitor *mon, const QObject *data) { }
 322
 323 static inline int monitor_handler_ported(const mon_cmd_t *cmd)
 324 {
 325     return cmd->user_print != NULL;
 326 }
 327
 328 static inline bool monitor_handler_is_async(const mon_cmd_t *cmd)
 329 {
 330     return cmd->async != 0;
 331 }
 332
 333 static inline int monitor_has_error(const Monitor *mon)
 334 {
 335     return mon->error != NULL;
 336 }
 337
 338 static void monitor_json_emitter(Monitor *mon, const QObject *data)
 339 {
 340     QString *json;
 341
 342     json = qobject_to_json(data);
 343     assert(json != NULL);
 344
 345     qstring_append_chr(json, '\n');
 346     monitor_puts(mon, qstring_get_str(json));
 347
 348     QDECREF(json);
 349 }
 350
 351 static void monitor_protocol_emitter(Monitor *mon, QObject *data)
 352 {
 353     QDict *qmp;
 354
 355     qmp = qdict_new();
 356
 357     if (!monitor_has_error(mon)) {
 358         /* success response */
 359         if (data) {
 360             qobject_incref(data);
 361             qdict_put_obj(qmp, "return", data);
 362         } else {
 363             /* return an empty QDict by default */
 364             qdict_put(qmp, "return", qdict_new());
 365         }
 366     } else {
 367         /* error response */
 368         qdict_put(mon->error->error, "desc", qerror_human(mon->error));
 369         qdict_put(qmp, "error", mon->error->error);
 370         QINCREF(mon->error->error);
 371         QDECREF(mon->error);
 372         mon->error = NULL;
 373     }
 374
 375     if (mon->mc->id) {
 376         qdict_put_obj(qmp, "id", mon->mc->id);
 377         mon->mc->id = NULL;
 378     }
 379
 380     monitor_json_emitter(mon, QOBJECT(qmp));
 381     QDECREF(qmp);
 382 }
 383
 384 static void timestamp_put(QDict *qdict)
 385 {
 386     int err;
 387     QObject *obj;
 388     qemu_timeval tv;
 389
 390     err = qemu_gettimeofday(&tv);
 391     if (err < 0)
 392         return;
 393
 394     obj = qobject_from_jsonf("{ 'seconds': %" PRId64 ", "
 395                                 "'microseconds': %" PRId64 " }",
 396                                 (int64_t) tv.tv_sec, (int64_t) tv.tv_usec);
 397     qdict_put_obj(qdict, "timestamp", obj);
 398 }
 399
 400 /**
 401  * monitor_protocol_event(): Generate a Monitor event
 402  *
 403  * Event-specific data can be emitted through the (optional) 'data' parameter.
 404  */
 405 void monitor_protocol_event(MonitorEvent event, QObject *data)
 406 {
 407     QDict *qmp;
 408     const char *event_name;
 409     Monitor *mon;
 410
 411     assert(event < QEVENT_MAX);
 412
 413     switch (event) {
 414         case QEVENT_SHUTDOWN:
 415             event_name = "SHUTDOWN";
 416             break;
 417         case QEVENT_RESET:
 418             event_name = "RESET";
 419             break;
 420         case QEVENT_POWERDOWN:
 421             event_name = "POWERDOWN";
 422             break;
 423         case QEVENT_STOP:
 424             event_name = "STOP";
 425             break;
 426         case QEVENT_RESUME:
 427             event_name = "RESUME";
 428             break;
 429         case QEVENT_VNC_CONNECTED:
 430             event_name = "VNC_CONNECTED";
 431             break;
 432         case QEVENT_VNC_INITIALIZED:
 433             event_name = "VNC_INITIALIZED";
 434             break;
 435         case QEVENT_VNC_DISCONNECTED:
 436             event_name = "VNC_DISCONNECTED";
 437             break;
 438         case QEVENT_BLOCK_IO_ERROR:
 439             event_name = "BLOCK_IO_ERROR";
 440             break;
 441         case QEVENT_RTC_CHANGE:
 442             event_name = "RTC_CHANGE";
 443             break;
 444         case QEVENT_WATCHDOG:
 445             event_name = "WATCHDOG";
 446             break;
 447         default:
 448             abort();
 449             break;
 450     }
 451
 452     qmp = qdict_new();
 453     timestamp_put(qmp);
 454     qdict_put(qmp, "event", qstring_from_str(event_name));
 455     if (data) {
 456         qobject_incref(data);
 457         qdict_put_obj(qmp, "data", data);
 458     }
 459
 460     QLIST_FOREACH(mon, &mon_list, entry) {
 461         if (monitor_ctrl_mode(mon) && qmp_cmd_mode(mon)) {
 462             monitor_json_emitter(mon, QOBJECT(qmp));
 463         }
 464     }
 465     QDECREF(qmp);
 466 }
 467
 468 static int do_qmp_capabilities(Monitor *mon, const QDict *params,
 469                                QObject **ret_data)
 470 {
 471     /* Will setup QMP capabilities in the future */
 472     if (monitor_ctrl_mode(mon)) {
 473         mon->mc->command_mode = 1;
 474     }
 475
 476     return 0;
 477 }
 478
 479 static int compare_cmd(const char *name, const char *list)
 480 {
 481     const char *p, *pstart;
 482     int len;
 483     len = strlen(name);
 484     p = list;
 485     for(;;) {
 486         pstart = p;
 487         p = strchr(p, '|');
 488         if (!p)
 489             p = pstart + strlen(pstart);
 490         if ((p - pstart) == len && !memcmp(pstart, name, len))
 491             return 1;
 492         if (*p == '\0')
 493             break;
 494         p++;
 495     }
 496     return 0;
 497 }
 498
 499 static void help_cmd_dump(Monitor *mon, const mon_cmd_t *cmds,
 500                           const char *prefix, const char *name)
 501 {
 502     const mon_cmd_t *cmd;
 503
 504     for(cmd = cmds; cmd->name != NULL; cmd++) {
 505         if (!name || !strcmp(name, cmd->name))
 506             monitor_printf(mon, "%s%s %s -- %s\n", prefix, cmd->name,
 507                            cmd->params, cmd->help);
 508     }
 509 }
 510
 511 static void help_cmd(Monitor *mon, const char *name)
 512 {
 513     if (name && !strcmp(name, "info")) {
 514         help_cmd_dump(mon, info_cmds, "info ", NULL);
 515     } else {
 516         help_cmd_dump(mon, mon_cmds, "", name);
 517         if (name && !strcmp(name, "log")) {
 518             const CPULogItem *item;
 519             monitor_printf(mon, "Log items (comma separated):\n");
 520             monitor_printf(mon, "%-10s %s\n", "none", "remove all logs");
 521             for(item = cpu_log_items; item->mask != 0; item++) {
 522                 monitor_printf(mon, "%-10s %s\n", item->name, item->help);
 523             }
 524         }
 525     }
 526 }
 527
 528 static void do_help_cmd(Monitor *mon, const QDict *qdict)
 529 {
 530     help_cmd(mon, qdict_get_try_str(qdict, "name"));
 531 }
 532
 533 static void do_commit(Monitor *mon, const QDict *qdict)
 534 {
 535     int all_devices;
 536     DriveInfo *dinfo;
 537     const char *device = qdict_get_str(qdict, "device");
 538
 539     all_devices = !strcmp(device, "all");
 540     QTAILQ_FOREACH(dinfo, &drives, next) {
 541         if (!all_devices)
 542             if (strcmp(bdrv_get_device_name(dinfo->bdrv), device))
 543                 continue;
 544         bdrv_commit(dinfo->bdrv);
 545     }
 546 }
 547
 548 static void user_monitor_complete(void *opaque, QObject *ret_data)
 549 {
 550     MonitorCompletionData *data = (MonitorCompletionData *)opaque;
 551
 552     if (ret_data) {
 553         data->user_print(data->mon, ret_data);
 554     }
 555     monitor_resume(data->mon);
 556     qemu_free(data);
 557 }
 558
 559 static void qmp_monitor_complete(void *opaque, QObject *ret_data)
 560 {
 561     monitor_protocol_emitter(opaque, ret_data);
 562 }
 563
 564 static void qmp_async_cmd_handler(Monitor *mon, const mon_cmd_t *cmd,
 565                                   const QDict *params)
 566 {
 567     cmd->mhandler.cmd_async(mon, params, qmp_monitor_complete, mon);
 568 }
 569
 570 static void qmp_async_info_handler(Monitor *mon, const mon_cmd_t *cmd)
 571 {
 572     cmd->mhandler.info_async(mon, qmp_monitor_complete, mon);
 573 }
 574
 575 static void user_async_cmd_handler(Monitor *mon, const mon_cmd_t *cmd,
 576                                    const QDict *params)
 577 {
 578     int ret;
 579
 580     MonitorCompletionData *cb_data = qemu_malloc(sizeof(*cb_data));
 581     cb_data->mon = mon;
 582     cb_data->user_print = cmd->user_print;
 583     monitor_suspend(mon);
 584     ret = cmd->mhandler.cmd_async(mon, params,
 585                                   user_monitor_complete, cb_data);
 586     if (ret < 0) {
 587         monitor_resume(mon);
 588         qemu_free(cb_data);
 589     }
 590 }
 591
 592 static void user_async_info_handler(Monitor *mon, const mon_cmd_t *cmd)
 593 {
 594     int ret;
 595
 596     MonitorCompletionData *cb_data = qemu_malloc(sizeof(*cb_data));
 597     cb_data->mon = mon;
 598     cb_data->user_print = cmd->user_print;
 599     monitor_suspend(mon);
 600     ret = cmd->mhandler.info_async(mon, user_monitor_complete, cb_data);
 601     if (ret < 0) {
 602         monitor_resume(mon);
 603         qemu_free(cb_data);
 604     }
 605 }
 606
 607 static int do_info(Monitor *mon, const QDict *qdict, QObject **ret_data)
 608 {
 609     const mon_cmd_t *cmd;
 610     const char *item = qdict_get_try_str(qdict, "item");
 611
 612     if (!item) {
 613         assert(monitor_ctrl_mode(mon) == 0);
 614         goto help;
 615     }
 616
 617     for (cmd = info_cmds; cmd->name != NULL; cmd++) {
 618         if (compare_cmd(item, cmd->name))
 619             break;
 620     }
 621
 622     if (cmd->name == NULL) {
 623         if (monitor_ctrl_mode(mon)) {
 624             qerror_report(QERR_COMMAND_NOT_FOUND, item);
 625             return -1;
 626         }
 627         goto help;
 628     }
 629
 630     if (monitor_handler_is_async(cmd)) {
 631         if (monitor_ctrl_mode(mon)) {
 632             qmp_async_info_handler(mon, cmd);
 633         } else {
 634             user_async_info_handler(mon, cmd);
 635         }
 636         /*
 637          * Indicate that this command is asynchronous and will not return any
 638          * data (not even empty).  Instead, the data will be returned via a
 639          * completion callback.
 640          */
 641         *ret_data = qobject_from_jsonf("{ '__mon_async': 'return' }");
 642     } else if (monitor_handler_ported(cmd)) {
 643         cmd->mhandler.info_new(mon, ret_data);
 644
 645         if (!monitor_ctrl_mode(mon)) {
 646             /*
 647              * User Protocol function is called here, Monitor Protocol is
 648              * handled by monitor_call_handler()
 649              */
 650             if (*ret_data)
 651                 cmd->user_print(mon, *ret_data);
 652         }
 653     } else {
 654         if (monitor_ctrl_mode(mon)) {
 655             /* handler not converted yet */
 656             qerror_report(QERR_COMMAND_NOT_FOUND, item);
 657             return -1;
 658         } else {
 659             cmd->mhandler.info(mon);
 660         }
 661     }
 662
 663     return 0;
 664
 665 help:
 666     help_cmd(mon, "info");
 667     return 0;
 668 }
 669
 670 static void do_info_version_print(Monitor *mon, const QObject *data)
 671 {
 672     QDict *qdict;
 673
 674     qdict = qobject_to_qdict(data);
 675
 676     monitor_printf(mon, "%s%s\n", qdict_get_str(qdict, "qemu"),
 677                                   qdict_get_str(qdict, "package"));
 678 }
 679
 680 static void do_info_version(Monitor *mon, QObject **ret_data)
 681 {
 682     *ret_data = qobject_from_jsonf("{ 'qemu': %s, 'package': %s }",
 683                                    QEMU_VERSION, QEMU_PKGVERSION);
 684 }
 685
 686 static void do_info_name_print(Monitor *mon, const QObject *data)
 687 {
 688     QDict *qdict;
 689
 690     qdict = qobject_to_qdict(data);
 691     if (qdict_size(qdict) == 0) {
 692         return;
 693     }
 694
 695     monitor_printf(mon, "%s\n", qdict_get_str(qdict, "name"));
 696 }
 697
 698 static void do_info_name(Monitor *mon, QObject **ret_data)
 699 {
 700     *ret_data = qemu_name ? qobject_from_jsonf("{'name': %s }", qemu_name) :
 701                             qobject_from_jsonf("{}");
 702 }
 703
 704 static QObject *get_cmd_dict(const char *name)
 705 {
 706     const char *p;
 707
 708     /* Remove '|' from some commands */
 709     p = strchr(name, '|');
 710     if (p) {
 711         p++;
 712     } else {
 713         p = name;
 714     }
 715
 716     return qobject_from_jsonf("{ 'name': %s }", p);
 717 }
 718
 719 static void do_info_commands(Monitor *mon, QObject **ret_data)
 720 {
 721     QList *cmd_list;
 722     const mon_cmd_t *cmd;
 723
 724     cmd_list = qlist_new();
 725
 726     for (cmd = mon_cmds; cmd->name != NULL; cmd++) {
 727         if (monitor_handler_ported(cmd) && !compare_cmd(cmd->name, "info")) {
 728             qlist_append_obj(cmd_list, get_cmd_dict(cmd->name));
 729         }
 730     }
 731
 732     for (cmd = info_cmds; cmd->name != NULL; cmd++) {
 733         if (monitor_handler_ported(cmd)) {
 734             char buf[128];
 735             snprintf(buf, sizeof(buf), "query-%s", cmd->name);
 736             qlist_append_obj(cmd_list, get_cmd_dict(buf));
 737         }
 738     }
 739
 740     *ret_data = QOBJECT(cmd_list);
 741 }
 742
 743 static void do_info_uuid_print(Monitor *mon, const QObject *data)
 744 {
 745     monitor_printf(mon, "%s\n", qdict_get_str(qobject_to_qdict(data), "UUID"));
 746 }
 747
 748 static void do_info_uuid(Monitor *mon, QObject **ret_data)
 749 {
 750     char uuid[64];
 751
 752     snprintf(uuid, sizeof(uuid), UUID_FMT, qemu_uuid[0], qemu_uuid[1],
 753                    qemu_uuid[2], qemu_uuid[3], qemu_uuid[4], qemu_uuid[5],
 754                    qemu_uuid[6], qemu_uuid[7], qemu_uuid[8], qemu_uuid[9],
 755                    qemu_uuid[10], qemu_uuid[11], qemu_uuid[12], qemu_uuid[13],
 756                    qemu_uuid[14], qemu_uuid[15]);
 757     *ret_data = qobject_from_jsonf("{ 'UUID': %s }", uuid);
 758 }
 759
 760 /* get the current CPU defined by the user */
 761 static int mon_set_cpu(int cpu_index)
 762 {
 763     CPUState *env;
 764
 765     for(env = first_cpu; env != NULL; env = env->next_cpu) {
 766         if (env->cpu_index == cpu_index) {
 767             cur_mon->mon_cpu = env;
 768             return 0;
 769         }
 770     }
 771     return -1;
 772 }
 773
 774 static CPUState *mon_get_cpu(void)
 775 {
 776     if (!cur_mon->mon_cpu) {
 777         mon_set_cpu(0);
 778     }
 779     cpu_synchronize_state(cur_mon->mon_cpu);
 780     return cur_mon->mon_cpu;
 781 }
 782
 783 static void do_info_registers(Monitor *mon)
 784 {
 785     CPUState *env;
 786     env = mon_get_cpu();
 787 #ifdef TARGET_I386
 788     cpu_dump_state(env, (FILE *)mon, monitor_fprintf,
 789                    X86_DUMP_FPU);
 790 #else
 791     cpu_dump_state(env, (FILE *)mon, monitor_fprintf,
 792                    0);
 793 #endif
 794 }
 795
 796 static void print_cpu_iter(QObject *obj, void *opaque)
 797 {
 798     QDict *cpu;
 799     int active = ' ';
 800     Monitor *mon = opaque;
 801
 802     assert(qobject_type(obj) == QTYPE_QDICT);
 803     cpu = qobject_to_qdict(obj);
 804
 805     if (qdict_get_bool(cpu, "current")) {
 806         active = '*';
 807     }
 808
 809     monitor_printf(mon, "%c CPU #%d: ", active, (int)qdict_get_int(cpu, "CPU"));
 810
 811 #if defined(TARGET_I386)
 812     monitor_printf(mon, "pc=0x" TARGET_FMT_lx,
 813                    (target_ulong) qdict_get_int(cpu, "pc"));
 814 #elif defined(TARGET_PPC)
 815     monitor_printf(mon, "nip=0x" TARGET_FMT_lx,
 816                    (target_long) qdict_get_int(cpu, "nip"));
 817 #elif defined(TARGET_SPARC)
 818     monitor_printf(mon, "pc=0x " TARGET_FMT_lx,
 819                    (target_long) qdict_get_int(cpu, "pc"));
 820     monitor_printf(mon, "npc=0x" TARGET_FMT_lx,
 821                    (target_long) qdict_get_int(cpu, "npc"));
 822 #elif defined(TARGET_MIPS)
 823     monitor_printf(mon, "PC=0x" TARGET_FMT_lx,
 824                    (target_long) qdict_get_int(cpu, "PC"));
 825 #endif
 826
 827     if (qdict_get_bool(cpu, "halted")) {
 828         monitor_printf(mon, " (halted)");
 829     }
 830
 831     monitor_printf(mon, "\n");
 832 }
 833
 834 static void monitor_print_cpus(Monitor *mon, const QObject *data)
 835 {
 836     QList *cpu_list;
 837
 838     assert(qobject_type(data) == QTYPE_QLIST);
 839     cpu_list = qobject_to_qlist(data);
 840     qlist_iter(cpu_list, print_cpu_iter, mon);
 841 }
 842
 843 static void do_info_cpus(Monitor *mon, QObject **ret_data)
 844 {
 845     CPUState *env;
 846     QList *cpu_list;
 847
 848     cpu_list = qlist_new();
 849
 850     /* just to set the default cpu if not already done */
 851     mon_get_cpu();
 852
 853     for(env = first_cpu; env != NULL; env = env->next_cpu) {
 854         QDict *cpu;
 855         QObject *obj;
 856
 857         cpu_synchronize_state(env);
 858
 859         obj = qobject_from_jsonf("{ 'CPU': %d, 'current': %i, 'halted': %i }",
 860                                  env->cpu_index, env == mon->mon_cpu,
 861                                  env->halted);
 862
 863         cpu = qobject_to_qdict(obj);
 864
 865 #if defined(TARGET_I386)
 866         qdict_put(cpu, "pc", qint_from_int(env->eip + env->segs[R_CS].base));
 867 #elif defined(TARGET_PPC)
 868         qdict_put(cpu, "nip", qint_from_int(env->nip));
 869 #elif defined(TARGET_SPARC)
 870         qdict_put(cpu, "pc", qint_from_int(env->pc));
 871         qdict_put(cpu, "npc", qint_from_int(env->npc));
 872 #elif defined(TARGET_MIPS)
 873         qdict_put(cpu, "PC", qint_from_int(env->active_tc.PC));
 874 #endif
 875
 876         qlist_append(cpu_list, cpu);
 877     }
 878
 879     *ret_data = QOBJECT(cpu_list);
 880 }
 881
 882 static int do_cpu_set(Monitor *mon, const QDict *qdict, QObject **ret_data)
 883 {
 884     int index = qdict_get_int(qdict, "index");
 885     if (mon_set_cpu(index) < 0) {
 886         qerror_report(QERR_INVALID_PARAMETER_VALUE, "index",
 887                       "a CPU number");
 888         return -1;
 889     }
 890     return 0;
 891 }
 892
 893 static void do_info_jit(Monitor *mon)
 894 {
 895     dump_exec_info((FILE *)mon, monitor_fprintf);
 896 }
 897
 898 static void do_info_history(Monitor *mon)
 899 {
 900     int i;
 901     const char *str;
 902
 903     if (!mon->rs)
 904         return;
 905     i = 0;
 906     for(;;) {
 907         str = readline_get_history(mon->rs, i);
 908         if (!str)
 909             break;
 910         monitor_printf(mon, "%d: '%s'\n", i, str);
 911         i++;
 912     }
 913 }
 914
 915 #if defined(TARGET_PPC)
 916 /* XXX: not implemented in other targets */
 917 static void do_info_cpu_stats(Monitor *mon)
 918 {
 919     CPUState *env;
 920
 921     env = mon_get_cpu();
 922     cpu_dump_statistics(env, (FILE *)mon, &monitor_fprintf, 0);
 923 }
 924 #endif
 925
 926 /**
 927  * do_quit(): Quit QEMU execution
 928  */
 929 static int do_quit(Monitor *mon, const QDict *qdict, QObject **ret_data)
 930 {
 931     monitor_suspend(mon);
 932     no_shutdown = 0;
 933     qemu_system_shutdown_request();
 934
 935     return 0;
 936 }
 937
 938 static int eject_device(Monitor *mon, BlockDriverState *bs, int force)
 939 {
 940     if (bdrv_is_inserted(bs)) {
 941         if (!force) {
 942             if (!bdrv_is_removable(bs)) {
 943                 qerror_report(QERR_DEVICE_NOT_REMOVABLE,
 944                                bdrv_get_device_name(bs));
 945                 return -1;
 946             }
 947             if (bdrv_is_locked(bs)) {
 948                 qerror_report(QERR_DEVICE_LOCKED, bdrv_get_device_name(bs));
 949                 return -1;
 950             }
 951         }
 952         bdrv_close(bs);
 953     }
 954     return 0;
 955 }
 956
 957 static int do_eject(Monitor *mon, const QDict *qdict, QObject **ret_data)
 958 {
 959     BlockDriverState *bs;
 960     int force = qdict_get_int(qdict, "force");
 961     const char *filename = qdict_get_str(qdict, "device");
 962
 963     bs = bdrv_find(filename);
 964     if (!bs) {
 965         qerror_report(QERR_DEVICE_NOT_FOUND, filename);
 966         return -1;
 967     }
 968     return eject_device(mon, bs, force);
 969 }
 970
 971 static int do_block_set_passwd(Monitor *mon, const QDict *qdict,
 972                                 QObject **ret_data)
 973 {
 974     BlockDriverState *bs;
 975     int err;
 976
 977     bs = bdrv_find(qdict_get_str(qdict, "device"));
 978     if (!bs) {
 979         qerror_report(QERR_DEVICE_NOT_FOUND, qdict_get_str(qdict, "device"));
 980         return -1;
 981     }
 982
 983     err = bdrv_set_key(bs, qdict_get_str(qdict, "password"));
 984     if (err == -EINVAL) {
 985         qerror_report(QERR_DEVICE_NOT_ENCRYPTED, bdrv_get_device_name(bs));
 986         return -1;
 987     } else if (err < 0) {
 988         qerror_report(QERR_INVALID_PASSWORD);
 989         return -1;
 990     }
 991
 992     return 0;
 993 }
 994
 995 static int do_change_block(Monitor *mon, const char *device,
 996                            const char *filename, const char *fmt)
 997 {
 998     BlockDriverState *bs;
 999     BlockDriver *drv = NULL;
1000     int bdrv_flags;
1001
1002     bs = bdrv_find(device);
1003     if (!bs) {
1004         qerror_report(QERR_DEVICE_NOT_FOUND, device);
1005         return -1;
1006     }
1007     if (fmt) {
1008         drv = bdrv_find_whitelisted_format(fmt);
1009         if (!drv) {
1010             qerror_report(QERR_INVALID_BLOCK_FORMAT, fmt);
1011             return -1;
1012         }
1013     }
1014     if (eject_device(mon, bs, 0) < 0) {
1015         return -1;
1016     }
1017     bdrv_flags = bdrv_get_type_hint(bs) == BDRV_TYPE_CDROM ? 0 : BDRV_O_RDWR;
1018     if (bdrv_open(bs, filename, bdrv_flags, drv) < 0) {
1019         qerror_report(QERR_OPEN_FILE_FAILED, filename);
1020         return -1;
1021     }
1022     return monitor_read_bdrv_key_start(mon, bs, NULL, NULL);
1023 }
1024
1025 static int change_vnc_password(const char *password)
1026 {
1027     if (vnc_display_password(NULL, password) < 0) {
1028         qerror_report(QERR_SET_PASSWD_FAILED);
1029         return -1;
1030     }
1031
1032     return 0;
1033 }
1034
1035 static void change_vnc_password_cb(Monitor *mon, const char *password,
1036                                    void *opaque)
1037 {
1038     change_vnc_password(password);
1039     monitor_read_command(mon, 1);
1040 }
1041
1042 static int do_change_vnc(Monitor *mon, const char *target, const char *arg)
1043 {
1044     if (strcmp(target, "passwd") == 0 ||
1045         strcmp(target, "password") == 0) {
1046         if (arg) {
1047             char password[9];
1048             strncpy(password, arg, sizeof(password));
1049             password[sizeof(password) - 1] = '\0';
1050             return change_vnc_password(password);
1051         } else {
1052             return monitor_read_password(mon, change_vnc_password_cb, NULL);
1053         }
1054     } else {
1055         if (vnc_display_open(NULL, target) < 0) {
1056             qerror_report(QERR_VNC_SERVER_FAILED, target);
1057             return -1;
1058         }
1059     }
1060
1061     return 0;
1062 }
1063
1064 /**
1065  * do_change(): Change a removable medium, or VNC configuration
1066  */
1067 static int do_change(Monitor *mon, const QDict *qdict, QObject **ret_data)
1068 {
1069     const char *device = qdict_get_str(qdict, "device");
1070     const char *target = qdict_get_str(qdict, "target");
1071     const char *arg = qdict_get_try_str(qdict, "arg");
1072     int ret;
1073
1074     if (strcmp(device, "vnc") == 0) {
1075         ret = do_change_vnc(mon, target, arg);
1076     } else {
1077         ret = do_change_block(mon, device, target, arg);
1078     }
1079
1080     return ret;
1081 }
1082
1083 static int do_screen_dump(Monitor *mon, const QDict *qdict, QObject **ret_data)
1084 {
1085     vga_hw_screen_dump(qdict_get_str(qdict, "filename"));
1086     return 0;
1087 }
1088
1089 static void do_logfile(Monitor *mon, const QDict *qdict)
1090 {
1091     cpu_set_log_filename(qdict_get_str(qdict, "filename"));
1092 }
1093
1094 static void do_log(Monitor *mon, const QDict *qdict)
1095 {
1096     int mask;
1097     const char *items = qdict_get_str(qdict, "items");
1098
1099     if (!strcmp(items, "none")) {
1100         mask = 0;
1101     } else {
1102         mask = cpu_str_to_log_mask(items);
1103         if (!mask) {
1104             help_cmd(mon, "log");
1105             return;
1106         }
1107     }
1108     cpu_set_log(mask);
1109 }
1110
1111 static void do_singlestep(Monitor *mon, const QDict *qdict)
1112 {
1113     const char *option = qdict_get_try_str(qdict, "option");
1114     if (!option || !strcmp(option, "on")) {
1115         singlestep = 1;
1116     } else if (!strcmp(option, "off")) {
1117         singlestep = 0;
1118     } else {
1119         monitor_printf(mon, "unexpected option %s\n", option);
1120     }
1121 }
1122
1123 /**
1124  * do_stop(): Stop VM execution
1125  */
1126 static int do_stop(Monitor *mon, const QDict *qdict, QObject **ret_data)
1127 {
1128     vm_stop(EXCP_INTERRUPT);
1129     return 0;
1130 }
1131
1132 static void encrypted_bdrv_it(void *opaque, BlockDriverState *bs);
1133
1134 struct bdrv_iterate_context {
1135     Monitor *mon;
1136     int err;
1137 };
1138
1139 /**
1140  * do_cont(): Resume emulation.
1141  */
1142 static int do_cont(Monitor *mon, const QDict *qdict, QObject **ret_data)
1143 {
1144     struct bdrv_iterate_context context = { mon, 0 };
1145
1146     bdrv_iterate(encrypted_bdrv_it, &context);
1147     /* only resume the vm if all keys are set and valid */
1148     if (!context.err) {
1149         vm_start();
1150         return 0;
1151     } else {
1152         return -1;
1153     }
1154 }
1155
1156 static void bdrv_key_cb(void *opaque, int err)
1157 {
1158     Monitor *mon = opaque;
1159
1160     /* another key was set successfully, retry to continue */
1161     if (!err)
1162         do_cont(mon, NULL, NULL);
1163 }
1164
1165 static void encrypted_bdrv_it(void *opaque, BlockDriverState *bs)
1166 {
1167     struct bdrv_iterate_context *context = opaque;
1168
1169     if (!context->err && bdrv_key_required(bs)) {
1170         context->err = -EBUSY;
1171         monitor_read_bdrv_key_start(context->mon, bs, bdrv_key_cb,
1172                                     context->mon);
1173     }
1174 }
1175
1176 static void do_gdbserver(Monitor *mon, const QDict *qdict)
1177 {
1178     const char *device = qdict_get_try_str(qdict, "device");
1179     if (!device)
1180         device = "tcp::" DEFAULT_GDBSTUB_PORT;
1181     if (gdbserver_start(device) < 0) {
1182         monitor_printf(mon, "Could not open gdbserver on device '%s'\n",
1183                        device);
1184     } else if (strcmp(device, "none") == 0) {
1185         monitor_printf(mon, "Disabled gdbserver\n");
1186     } else {
1187         monitor_printf(mon, "Waiting for gdb connection on device '%s'\n",
1188                        device);
1189     }
1190 }
1191
1192 static void do_watchdog_action(Monitor *mon, const QDict *qdict)
1193 {
1194     const char *action = qdict_get_str(qdict, "action");
1195     if (select_watchdog_action(action) == -1) {
1196         monitor_printf(mon, "Unknown watchdog action '%s'\n", action);
1197     }
1198 }
1199
1200 static void monitor_printc(Monitor *mon, int c)
1201 {
1202     monitor_printf(mon, "'");
1203     switch(c) {
1204     case '\'':
1205         monitor_printf(mon, "\\'");
1206         break;
1207     case '\\':
1208         monitor_printf(mon, "\\\\");
1209         break;
1210     case '\n':
1211         monitor_printf(mon, "\\n");
1212         break;
1213     case '\r':
1214         monitor_printf(mon, "\\r");
1215         break;
1216     default:
1217         if (c >= 32 && c <= 126) {
1218             monitor_printf(mon, "%c", c);
1219         } else {
1220             monitor_printf(mon, "\\x%02x", c);
1221         }
1222         break;
1223     }
1224     monitor_printf(mon, "'");
1225 }
1226
1227 static void memory_dump(Monitor *mon, int count, int format, int wsize,
1228                         target_phys_addr_t addr, int is_physical)
1229 {
1230     CPUState *env;
1231     int l, line_size, i, max_digits, len;
1232     uint8_t buf[16];
1233     uint64_t v;
1234
1235     if (format == 'i') {
1236         int flags;
1237         flags = 0;
1238         env = mon_get_cpu();
1239 #ifdef TARGET_I386
1240         if (wsize == 2) {
1241             flags = 1;
1242         } else if (wsize == 4) {
1243             flags = 0;
1244         } else {
1245             /* as default we use the current CS size */
1246             flags = 0;
1247             if (env) {
1248 #ifdef TARGET_X86_64
1249                 if ((env->efer & MSR_EFER_LMA) &&
1250                     (env->segs[R_CS].flags & DESC_L_MASK))
1251                     flags = 2;
1252                 else
1253 #endif
1254                 if (!(env->segs[R_CS].flags & DESC_B_MASK))
1255                     flags = 1;
1256             }
1257         }
1258 #endif
1259         monitor_disas(mon, env, addr, count, is_physical, flags);
1260         return;
1261     }
1262
1263     len = wsize * count;
1264     if (wsize == 1)
1265         line_size = 8;
1266     else
1267         line_size = 16;
1268     max_digits = 0;
1269
1270     switch(format) {
1271     case 'o':
1272         max_digits = (wsize * 8 + 2) / 3;
1273         break;
1274     default:
1275     case 'x':
1276         max_digits = (wsize * 8) / 4;
1277         break;
1278     case 'u':
1279     case 'd':
1280         max_digits = (wsize * 8 * 10 + 32) / 33;
1281         break;
1282     case 'c':
1283         wsize = 1;
1284         break;
1285     }
1286
1287     while (len > 0) {
1288         if (is_physical)
1289             monitor_printf(mon, TARGET_FMT_plx ":", addr);
1290         else
1291             monitor_printf(mon, TARGET_FMT_lx ":", (target_ulong)addr);
1292         l = len;
1293         if (l > line_size)
1294             l = line_size;
1295         if (is_physical) {
1296             cpu_physical_memory_rw(addr, buf, l, 0);
1297         } else {
1298             env = mon_get_cpu();
1299             if (cpu_memory_rw_debug(env, addr, buf, l, 0) < 0) {
1300                 monitor_printf(mon, " Cannot access memory\n");
1301                 break;
1302             }
1303         }
1304         i = 0;
1305         while (i < l) {
1306             switch(wsize) {
1307             default:
1308             case 1:
1309                 v = ldub_raw(buf + i);
1310                 break;
1311             case 2:
1312                 v = lduw_raw(buf + i);
1313                 break;
1314             case 4:
1315                 v = (uint32_t)ldl_raw(buf + i);
1316                 break;
1317             case 8:
1318                 v = ldq_raw(buf + i);
1319                 break;
1320             }
1321             monitor_printf(mon, " ");
1322             switch(format) {
1323             case 'o':
1324                 monitor_printf(mon, "%#*" PRIo64, max_digits, v);
1325                 break;
1326             case 'x':
1327                 monitor_printf(mon, "0x%0*" PRIx64, max_digits, v);
1328                 break;
1329             case 'u':
1330                 monitor_printf(mon, "%*" PRIu64, max_digits, v);
1331                 break;
1332             case 'd':
1333                 monitor_printf(mon, "%*" PRId64, max_digits, v);
1334                 break;
1335             case 'c':
1336                 monitor_printc(mon, v);
1337                 break;
1338             }
1339             i += wsize;
1340         }
1341         monitor_printf(mon, "\n");
1342         addr += l;
1343         len -= l;
1344     }
1345 }
1346
1347 static void do_memory_dump(Monitor *mon, const QDict *qdict)
1348 {
1349     int count = qdict_get_int(qdict, "count");
1350     int format = qdict_get_int(qdict, "format");
1351     int size = qdict_get_int(qdict, "size");
1352     target_long addr = qdict_get_int(qdict, "addr");
1353
1354     memory_dump(mon, count, format, size, addr, 0);
1355 }
1356
1357 static void do_physical_memory_dump(Monitor *mon, const QDict *qdict)
1358 {
1359     int count = qdict_get_int(qdict, "count");
1360     int format = qdict_get_int(qdict, "format");
1361     int size = qdict_get_int(qdict, "size");
1362     target_phys_addr_t addr = qdict_get_int(qdict, "addr");
1363
1364     memory_dump(mon, count, format, size, addr, 1);
1365 }
1366
1367 static void do_print(Monitor *mon, const QDict *qdict)
1368 {
1369     int format = qdict_get_int(qdict, "format");
1370     target_phys_addr_t val = qdict_get_int(qdict, "val");
1371
1372 #if TARGET_PHYS_ADDR_BITS == 32
1373     switch(format) {
1374     case 'o':
1375         monitor_printf(mon, "%#o", val);
1376         break;
1377     case 'x':
1378         monitor_printf(mon, "%#x", val);
1379         break;
1380     case 'u':
1381         monitor_printf(mon, "%u", val);
1382         break;
1383     default:
1384     case 'd':
1385         monitor_printf(mon, "%d", val);
1386         break;
1387     case 'c':
1388         monitor_printc(mon, val);
1389         break;
1390     }
1391 #else
1392     switch(format) {
1393     case 'o':
1394         monitor_printf(mon, "%#" PRIo64, val);
1395         break;
1396     case 'x':
1397         monitor_printf(mon, "%#" PRIx64, val);
1398         break;
1399     case 'u':
1400         monitor_printf(mon, "%" PRIu64, val);
1401         break;
1402     default:
1403     case 'd':
1404         monitor_printf(mon, "%" PRId64, val);
1405         break;
1406     case 'c':
1407         monitor_printc(mon, val);
1408         break;
1409     }
1410 #endif
1411     monitor_printf(mon, "\n");
1412 }
1413
1414 static int do_memory_save(Monitor *mon, const QDict *qdict, QObject **ret_data)
1415 {
1416     FILE *f;
1417     uint32_t size = qdict_get_int(qdict, "size");
1418     const char *filename = qdict_get_str(qdict, "filename");
1419     target_long addr = qdict_get_int(qdict, "val");
1420     uint32_t l;
1421     CPUState *env;
1422     uint8_t buf[1024];
1423     int ret = -1;
1424
1425     env = mon_get_cpu();
1426
1427     f = fopen(filename, "wb");
1428     if (!f) {
1429         qerror_report(QERR_OPEN_FILE_FAILED, filename);
1430         return -1;
1431     }
1432     while (size != 0) {
1433         l = sizeof(buf);
1434         if (l > size)
1435             l = size;
1436         cpu_memory_rw_debug(env, addr, buf, l, 0);
1437         if (fwrite(buf, 1, l, f) != l) {
1438             monitor_printf(mon, "fwrite() error in do_memory_save\n");
1439             goto exit;
1440         }
1441         addr += l;
1442         size -= l;
1443     }
1444
1445     ret = 0;
1446
1447 exit:
1448     fclose(f);
1449     return ret;
1450 }
1451
1452 static int do_physical_memory_save(Monitor *mon, const QDict *qdict,
1453                                     QObject **ret_data)
1454 {
1455     FILE *f;
1456     uint32_t l;
1457     uint8_t buf[1024];
1458     uint32_t size = qdict_get_int(qdict, "size");
1459     const char *filename = qdict_get_str(qdict, "filename");
1460     target_phys_addr_t addr = qdict_get_int(qdict, "val");
1461     int ret = -1;
1462
1463     f = fopen(filename, "wb");
1464     if (!f) {
1465         qerror_report(QERR_OPEN_FILE_FAILED, filename);
1466         return -1;
1467     }
1468     while (size != 0) {
1469         l = sizeof(buf);
1470         if (l > size)
1471             l = size;
1472         cpu_physical_memory_rw(addr, buf, l, 0);
1473         if (fwrite(buf, 1, l, f) != l) {
1474             monitor_printf(mon, "fwrite() error in do_physical_memory_save\n");
1475             goto exit;
1476         }
1477         fflush(f);
1478         addr += l;
1479         size -= l;
1480     }
1481
1482     ret = 0;
1483
1484 exit:
1485     fclose(f);
1486     return ret;
1487 }
1488
1489 static void do_sum(Monitor *mon, const QDict *qdict)
1490 {
1491     uint32_t addr;
1492     uint8_t buf[1];
1493     uint16_t sum;
1494     uint32_t start = qdict_get_int(qdict, "start");
1495     uint32_t size = qdict_get_int(qdict, "size");
1496
1497     sum = 0;
1498     for(addr = start; addr < (start + size); addr++) {
1499         cpu_physical_memory_rw(addr, buf, 1, 0);
1500         /* BSD sum algorithm ('sum' Unix command) */
1501         sum = (sum >> 1) | (sum << 15);
1502         sum += buf[0];
1503     }
1504     monitor_printf(mon, "%05d\n", sum);
1505 }
1506
1507 typedef struct {
1508     int keycode;
1509     const char *name;
1510 } KeyDef;
1511
1512 static const KeyDef key_defs[] = {
1513     { 0x2a, "shift" },
1514     { 0x36, "shift_r" },
1515
1516     { 0x38, "alt" },
1517     { 0xb8, "alt_r" },
1518     { 0x64, "altgr" },
1519     { 0xe4, "altgr_r" },
1520     { 0x1d, "ctrl" },
1521     { 0x9d, "ctrl_r" },
1522
1523     { 0xdd, "menu" },
1524
1525     { 0x01, "esc" },
1526
1527     { 0x02, "1" },
1528     { 0x03, "2" },
1529     { 0x04, "3" },
1530     { 0x05, "4" },
1531     { 0x06, "5" },
1532     { 0x07, "6" },
1533     { 0x08, "7" },
1534     { 0x09, "8" },
1535     { 0x0a, "9" },
1536     { 0x0b, "0" },
1537     { 0x0c, "minus" },
1538     { 0x0d, "equal" },
1539     { 0x0e, "backspace" },
1540
1541     { 0x0f, "tab" },
1542     { 0x10, "q" },
1543     { 0x11, "w" },
1544     { 0x12, "e" },
1545     { 0x13, "r" },
1546     { 0x14, "t" },
1547     { 0x15, "y" },
1548     { 0x16, "u" },
1549     { 0x17, "i" },
1550     { 0x18, "o" },
1551     { 0x19, "p" },
1552
1553     { 0x1c, "ret" },
1554
1555     { 0x1e, "a" },
1556     { 0x1f, "s" },
1557     { 0x20, "d" },
1558     { 0x21, "f" },
1559     { 0x22, "g" },
1560     { 0x23, "h" },
1561     { 0x24, "j" },
1562     { 0x25, "k" },
1563     { 0x26, "l" },
1564
1565     { 0x2c, "z" },
1566     { 0x2d, "x" },
1567     { 0x2e, "c" },
1568     { 0x2f, "v" },
1569     { 0x30, "b" },
1570     { 0x31, "n" },
1571     { 0x32, "m" },
1572     { 0x33, "comma" },
1573     { 0x34, "dot" },
1574     { 0x35, "slash" },
1575
1576     { 0x37, "asterisk" },
1577
1578     { 0x39, "spc" },
1579     { 0x3a, "caps_lock" },
1580     { 0x3b, "f1" },
1581     { 0x3c, "f2" },
1582     { 0x3d, "f3" },
1583     { 0x3e, "f4" },
1584     { 0x3f, "f5" },
1585     { 0x40, "f6" },
1586     { 0x41, "f7" },
1587     { 0x42, "f8" },
1588     { 0x43, "f9" },
1589     { 0x44, "f10" },
1590     { 0x45, "num_lock" },
1591     { 0x46, "scroll_lock" },
1592
1593     { 0xb5, "kp_divide" },
1594     { 0x37, "kp_multiply" },
1595     { 0x4a, "kp_subtract" },
1596     { 0x4e, "kp_add" },
1597     { 0x9c, "kp_enter" },
1598     { 0x53, "kp_decimal" },
1599     { 0x54, "sysrq" },
1600
1601     { 0x52, "kp_0" },
1602     { 0x4f, "kp_1" },
1603     { 0x50, "kp_2" },
1604     { 0x51, "kp_3" },
1605     { 0x4b, "kp_4" },
1606     { 0x4c, "kp_5" },
1607     { 0x4d, "kp_6" },
1608     { 0x47, "kp_7" },
1609     { 0x48, "kp_8" },
1610     { 0x49, "kp_9" },
1611
1612     { 0x56, "<" },
1613
1614     { 0x57, "f11" },
1615     { 0x58, "f12" },
1616
1617     { 0xb7, "print" },
1618
1619     { 0xc7, "home" },
1620     { 0xc9, "pgup" },
1621     { 0xd1, "pgdn" },
1622     { 0xcf, "end" },
1623
1624     { 0xcb, "left" },
1625     { 0xc8, "up" },
1626     { 0xd0, "down" },
1627     { 0xcd, "right" },
1628
1629     { 0xd2, "insert" },
1630     { 0xd3, "delete" },
1631 #if defined(TARGET_SPARC) && !defined(TARGET_SPARC64)
1632     { 0xf0, "stop" },
1633     { 0xf1, "again" },
1634     { 0xf2, "props" },
1635     { 0xf3, "undo" },
1636     { 0xf4, "front" },
1637     { 0xf5, "copy" },
1638     { 0xf6, "open" },
1639     { 0xf7, "paste" },
1640     { 0xf8, "find" },
1641     { 0xf9, "cut" },
1642     { 0xfa, "lf" },
1643     { 0xfb, "help" },
1644     { 0xfc, "meta_l" },
1645     { 0xfd, "meta_r" },
1646     { 0xfe, "compose" },
1647 #endif
1648     { 0, NULL },
1649 };
1650
1651 static int get_keycode(const char *key)
1652 {
1653     const KeyDef *p;
1654     char *endp;
1655     int ret;
1656
1657     for(p = key_defs; p->name != NULL; p++) {
1658         if (!strcmp(key, p->name))
1659             return p->keycode;
1660     }
1661     if (strstart(key, "0x", NULL)) {
1662         ret = strtoul(key, &endp, 0);
1663         if (*endp == '\0' && ret >= 0x01 && ret <= 0xff)
1664             return ret;
1665     }
1666     return -1;
1667 }
1668
1669 #define MAX_KEYCODES 16
1670 static uint8_t keycodes[MAX_KEYCODES];
1671 static int nb_pending_keycodes;
1672 static QEMUTimer *key_timer;
1673
1674 static void release_keys(void *opaque)
1675 {
1676     int keycode;
1677
1678     while (nb_pending_keycodes > 0) {
1679         nb_pending_keycodes--;
1680         keycode = keycodes[nb_pending_keycodes];
1681         if (keycode & 0x80)
1682             kbd_put_keycode(0xe0);
1683         kbd_put_keycode(keycode | 0x80);
1684     }
1685 }
1686
1687 static void do_sendkey(Monitor *mon, const QDict *qdict)
1688 {
1689     char keyname_buf[16];
1690     char *separator;
1691     int keyname_len, keycode, i;
1692     const char *string = qdict_get_str(qdict, "string");
1693     int has_hold_time = qdict_haskey(qdict, "hold_time");
1694     int hold_time = qdict_get_try_int(qdict, "hold_time", -1);
1695
1696     if (nb_pending_keycodes > 0) {
1697         qemu_del_timer(key_timer);
1698         release_keys(NULL);
1699     }
1700     if (!has_hold_time)
1701         hold_time = 100;
1702     i = 0;
1703     while (1) {
1704         separator = strchr(string, '-');
1705         keyname_len = separator ? separator - string : strlen(string);
1706         if (keyname_len > 0) {
1707             pstrcpy(keyname_buf, sizeof(keyname_buf), string);
1708             if (keyname_len > sizeof(keyname_buf) - 1) {
1709                 monitor_printf(mon, "invalid key: '%s...'\n", keyname_buf);
1710                 return;
1711             }
1712             if (i == MAX_KEYCODES) {
1713                 monitor_printf(mon, "too many keys\n");
1714                 return;
1715             }
1716             keyname_buf[keyname_len] = 0;
1717             keycode = get_keycode(keyname_buf);
1718             if (keycode < 0) {
1719                 monitor_printf(mon, "unknown key: '%s'\n", keyname_buf);
1720                 return;
1721             }
1722             keycodes[i++] = keycode;
1723         }
1724         if (!separator)
1725             break;
1726         string = separator + 1;
1727     }
1728     nb_pending_keycodes = i;
1729     /* key down events */
1730     for (i = 0; i < nb_pending_keycodes; i++) {
1731         keycode = keycodes[i];
1732         if (keycode & 0x80)
1733             kbd_put_keycode(0xe0);
1734         kbd_put_keycode(keycode & 0x7f);
1735     }
1736     /* delayed key up events */
1737     qemu_mod_timer(key_timer, qemu_get_clock(vm_clock) +
1738                    muldiv64(get_ticks_per_sec(), hold_time, 1000));
1739 }
1740
1741 static int mouse_button_state;
1742
1743 static void do_mouse_move(Monitor *mon, const QDict *qdict)
1744 {
1745     int dx, dy, dz;
1746     const char *dx_str = qdict_get_str(qdict, "dx_str");
1747     const char *dy_str = qdict_get_str(qdict, "dy_str");
1748     const char *dz_str = qdict_get_try_str(qdict, "dz_str");
1749     dx = strtol(dx_str, NULL, 0);
1750     dy = strtol(dy_str, NULL, 0);
1751     dz = 0;
1752     if (dz_str)
1753         dz = strtol(dz_str, NULL, 0);
1754     kbd_mouse_event(dx, dy, dz, mouse_button_state);
1755 }
1756
1757 static void do_mouse_button(Monitor *mon, const QDict *qdict)
1758 {
1759     int button_state = qdict_get_int(qdict, "button_state");
1760     mouse_button_state = button_state;
1761     kbd_mouse_event(0, 0, 0, mouse_button_state);
1762 }
1763
1764 static void do_ioport_read(Monitor *mon, const QDict *qdict)
1765 {
1766     int size = qdict_get_int(qdict, "size");
1767     int addr = qdict_get_int(qdict, "addr");
1768     int has_index = qdict_haskey(qdict, "index");
1769     uint32_t val;
1770     int suffix;
1771
1772     if (has_index) {
1773         int index = qdict_get_int(qdict, "index");
1774         cpu_outb(addr & IOPORTS_MASK, index & 0xff);
1775         addr++;
1776     }
1777     addr &= 0xffff;
1778
1779     switch(size) {
1780     default:
1781     case 1:
1782         val = cpu_inb(addr);
1783         suffix = 'b';
1784         break;
1785     case 2:
1786         val = cpu_inw(addr);
1787         suffix = 'w';
1788         break;
1789     case 4:
1790         val = cpu_inl(addr);
1791         suffix = 'l';
1792         break;
1793     }
1794     monitor_printf(mon, "port%c[0x%04x] = %#0*x\n",
1795                    suffix, addr, size * 2, val);
1796 }
1797
1798 static void do_ioport_write(Monitor *mon, const QDict *qdict)
1799 {
1800     int size = qdict_get_int(qdict, "size");
1801     int addr = qdict_get_int(qdict, "addr");
1802     int val = qdict_get_int(qdict, "val");
1803
1804     addr &= IOPORTS_MASK;
1805
1806     switch (size) {
1807     default:
1808     case 1:
1809         cpu_outb(addr, val);
1810         break;
1811     case 2:
1812         cpu_outw(addr, val);
1813         break;
1814     case 4:
1815         cpu_outl(addr, val);
1816         break;
1817     }
1818 }
1819
1820 static void do_boot_set(Monitor *mon, const QDict *qdict)
1821 {
1822     int res;
1823     const char *bootdevice = qdict_get_str(qdict, "bootdevice");
1824
1825     res = qemu_boot_set(bootdevice);
1826     if (res == 0) {
1827         monitor_printf(mon, "boot device list now set to %s\n", bootdevice);
1828     } else if (res > 0) {
1829         monitor_printf(mon, "setting boot device list failed\n");
1830     } else {
1831         monitor_printf(mon, "no function defined to set boot device list for "
1832                        "this architecture\n");
1833     }
1834 }
1835
1836 /**
1837  * do_system_reset(): Issue a machine reset
1838  */
1839 static int do_system_reset(Monitor *mon, const QDict *qdict,
1840                            QObject **ret_data)
1841 {
1842     qemu_system_reset_request();
1843     return 0;
1844 }
1845
1846 /**
1847  * do_system_powerdown(): Issue a machine powerdown
1848  */
1849 static int do_system_powerdown(Monitor *mon, const QDict *qdict,
1850                                QObject **ret_data)
1851 {
1852     qemu_system_powerdown_request();
1853     return 0;
1854 }
1855
1856 #if defined(TARGET_I386)
1857 static void print_pte(Monitor *mon, uint32_t addr, uint32_t pte, uint32_t mask)
1858 {
1859     monitor_printf(mon, "%08x: %08x %c%c%c%c%c%c%c%c\n",
1860                    addr,
1861                    pte & mask,
1862                    pte & PG_GLOBAL_MASK ? 'G' : '-',
1863                    pte & PG_PSE_MASK ? 'P' : '-',
1864                    pte & PG_DIRTY_MASK ? 'D' : '-',
1865                    pte & PG_ACCESSED_MASK ? 'A' : '-',
1866                    pte & PG_PCD_MASK ? 'C' : '-',
1867                    pte & PG_PWT_MASK ? 'T' : '-',
1868                    pte & PG_USER_MASK ? 'U' : '-',
1869                    pte & PG_RW_MASK ? 'W' : '-');
1870 }
1871
1872 static void tlb_info(Monitor *mon)
1873 {
1874     CPUState *env;
1875     int l1, l2;
1876     uint32_t pgd, pde, pte;
1877
1878     env = mon_get_cpu();
1879
1880     if (!(env->cr[0] & CR0_PG_MASK)) {
1881         monitor_printf(mon, "PG disabled\n");
1882         return;
1883     }
1884     pgd = env->cr[3] & ~0xfff;
1885     for(l1 = 0; l1 < 1024; l1++) {
1886         cpu_physical_memory_read(pgd + l1 * 4, (uint8_t *)&pde, 4);
1887         pde = le32_to_cpu(pde);
1888         if (pde & PG_PRESENT_MASK) {
1889             if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
1890                 print_pte(mon, (l1 << 22), pde, ~((1 << 20) - 1));
1891             } else {
1892                 for(l2 = 0; l2 < 1024; l2++) {
1893                     cpu_physical_memory_read((pde & ~0xfff) + l2 * 4,
1894                                              (uint8_t *)&pte, 4);
1895                     pte = le32_to_cpu(pte);
1896                     if (pte & PG_PRESENT_MASK) {
1897                         print_pte(mon, (l1 << 22) + (l2 << 12),
1898                                   pte & ~PG_PSE_MASK,
1899                                   ~0xfff);
1900                     }
1901                 }
1902             }
1903         }
1904     }
1905 }
1906
1907 static void mem_print(Monitor *mon, uint32_t *pstart, int *plast_prot,
1908                       uint32_t end, int prot)
1909 {
1910     int prot1;
1911     prot1 = *plast_prot;
1912     if (prot != prot1) {
1913         if (*pstart != -1) {
1914             monitor_printf(mon, "%08x-%08x %08x %c%c%c\n",
1915                            *pstart, end, end - *pstart,
1916                            prot1 & PG_USER_MASK ? 'u' : '-',
1917                            'r',
1918                            prot1 & PG_RW_MASK ? 'w' : '-');
1919         }
1920         if (prot != 0)
1921             *pstart = end;
1922         else
1923             *pstart = -1;
1924         *plast_prot = prot;
1925     }
1926 }
1927
1928 static void mem_info(Monitor *mon)
1929 {
1930     CPUState *env;
1931     int l1, l2, prot, last_prot;
1932     uint32_t pgd, pde, pte, start, end;
1933
1934     env = mon_get_cpu();
1935
1936     if (!(env->cr[0] & CR0_PG_MASK)) {
1937         monitor_printf(mon, "PG disabled\n");
1938         return;
1939     }
1940     pgd = env->cr[3] & ~0xfff;
1941     last_prot = 0;
1942     start = -1;
1943     for(l1 = 0; l1 < 1024; l1++) {
1944         cpu_physical_memory_read(pgd + l1 * 4, (uint8_t *)&pde, 4);
1945         pde = le32_to_cpu(pde);
1946         end = l1 << 22;
1947         if (pde & PG_PRESENT_MASK) {
1948             if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
1949                 prot = pde & (PG_USER_MASK | PG_RW_MASK | PG_PRESENT_MASK);
1950                 mem_print(mon, &start, &last_prot, end, prot);
1951             } else {
1952                 for(l2 = 0; l2 < 1024; l2++) {
1953                     cpu_physical_memory_read((pde & ~0xfff) + l2 * 4,
1954                                              (uint8_t *)&pte, 4);
1955                     pte = le32_to_cpu(pte);
1956                     end = (l1 << 22) + (l2 << 12);
1957                     if (pte & PG_PRESENT_MASK) {
1958                         prot = pte & (PG_USER_MASK | PG_RW_MASK | PG_PRESENT_MASK);
1959                     } else {
1960                         prot = 0;
1961                     }
1962                     mem_print(mon, &start, &last_prot, end, prot);
1963                 }
1964             }
1965         } else {
1966             prot = 0;
1967             mem_print(mon, &start, &last_prot, end, prot);
1968         }
1969     }
1970 }
1971 #endif
1972
1973 #if defined(TARGET_SH4)
1974
1975 static void print_tlb(Monitor *mon, int idx, tlb_t *tlb)
1976 {
1977     monitor_printf(mon, " tlb%i:\t"
1978                    "asid=%hhu vpn=%x\tppn=%x\tsz=%hhu size=%u\t"
1979                    "v=%hhu shared=%hhu cached=%hhu prot=%hhu "
1980                    "dirty=%hhu writethrough=%hhu\n",
1981                    idx,
1982                    tlb->asid, tlb->vpn, tlb->ppn, tlb->sz, tlb->size,
1983                    tlb->v, tlb->sh, tlb->c, tlb->pr,
1984                    tlb->d, tlb->wt);
1985 }
1986
1987 static void tlb_info(Monitor *mon)
1988 {
1989     CPUState *env = mon_get_cpu();
1990     int i;
1991
1992     monitor_printf (mon, "ITLB:\n");
1993     for (i = 0 ; i < ITLB_SIZE ; i++)
1994         print_tlb (mon, i, &env->itlb[i]);
1995     monitor_printf (mon, "UTLB:\n");
1996     for (i = 0 ; i < UTLB_SIZE ; i++)
1997         print_tlb (mon, i, &env->utlb[i]);
1998 }
1999
2000 #endif
2001
2002 static void do_info_kvm_print(Monitor *mon, const QObject *data)
2003 {
2004     QDict *qdict;
2005
2006     qdict = qobject_to_qdict(data);
2007
2008     monitor_printf(mon, "kvm support: ");
2009     if (qdict_get_bool(qdict, "present")) {
2010         monitor_printf(mon, "%s\n", qdict_get_bool(qdict, "enabled") ?
2011                                     "enabled" : "disabled");
2012     } else {
2013         monitor_printf(mon, "not compiled\n");
2014     }
2015 }
2016
2017 static void do_info_kvm(Monitor *mon, QObject **ret_data)
2018 {
2019 #ifdef CONFIG_KVM
2020     *ret_data = qobject_from_jsonf("{ 'enabled': %i, 'present': true }",
2021                                    kvm_enabled());
2022 #else
2023     *ret_data = qobject_from_jsonf("{ 'enabled': false, 'present': false }");
2024 #endif
2025 }
2026
2027 static void do_info_numa(Monitor *mon)
2028 {
2029     int i;
2030     CPUState *env;
2031
2032     monitor_printf(mon, "%d nodes\n", nb_numa_nodes);
2033     for (i = 0; i < nb_numa_nodes; i++) {
2034         monitor_printf(mon, "node %d cpus:", i);
2035         for (env = first_cpu; env != NULL; env = env->next_cpu) {
2036             if (env->numa_node == i) {
2037                 monitor_printf(mon, " %d", env->cpu_index);
2038             }
2039         }
2040         monitor_printf(mon, "\n");
2041         monitor_printf(mon, "node %d size: %" PRId64 " MB\n", i,
2042             node_mem[i] >> 20);
2043     }
2044 }
2045
2046 #ifdef CONFIG_PROFILER
2047
2048 int64_t qemu_time;
2049 int64_t dev_time;
2050
2051 static void do_info_profile(Monitor *mon)
2052 {
2053     int64_t total;
2054     total = qemu_time;
2055     if (total == 0)
2056         total = 1;
2057     monitor_printf(mon, "async time  %" PRId64 " (%0.3f)\n",
2058                    dev_time, dev_time / (double)get_ticks_per_sec());
2059     monitor_printf(mon, "qemu time   %" PRId64 " (%0.3f)\n",
2060                    qemu_time, qemu_time / (double)get_ticks_per_sec());
2061     qemu_time = 0;
2062     dev_time = 0;
2063 }
2064 #else
2065 static void do_info_profile(Monitor *mon)
2066 {
2067     monitor_printf(mon, "Internal profiler not compiled\n");
2068 }
2069 #endif
2070
2071 /* Capture support */
2072 static QLIST_HEAD (capture_list_head, CaptureState) capture_head;
2073
2074 static void do_info_capture(Monitor *mon)
2075 {
2076     int i;
2077     CaptureState *s;
2078
2079     for (s = capture_head.lh_first, i = 0; s; s = s->entries.le_next, ++i) {
2080         monitor_printf(mon, "[%d]: ", i);
2081         s->ops.info (s->opaque);
2082     }
2083 }
2084
2085 #ifdef HAS_AUDIO
2086 static void do_stop_capture(Monitor *mon, const QDict *qdict)
2087 {
2088     int i;
2089     int n = qdict_get_int(qdict, "n");
2090     CaptureState *s;
2091
2092     for (s = capture_head.lh_first, i = 0; s; s = s->entries.le_next, ++i) {
2093         if (i == n) {
2094             s->ops.destroy (s->opaque);
2095             QLIST_REMOVE (s, entries);
2096             qemu_free (s);
2097             return;
2098         }
2099     }
2100 }
2101
2102 static void do_wav_capture(Monitor *mon, const QDict *qdict)
2103 {
2104     const char *path = qdict_get_str(qdict, "path");
2105     int has_freq = qdict_haskey(qdict, "freq");
2106     int freq = qdict_get_try_int(qdict, "freq", -1);
2107     int has_bits = qdict_haskey(qdict, "bits");
2108     int bits = qdict_get_try_int(qdict, "bits", -1);
2109     int has_channels = qdict_haskey(qdict, "nchannels");
2110     int nchannels = qdict_get_try_int(qdict, "nchannels", -1);
2111     CaptureState *s;
2112
2113     s = qemu_mallocz (sizeof (*s));
2114
2115     freq = has_freq ? freq : 44100;
2116     bits = has_bits ? bits : 16;
2117     nchannels = has_channels ? nchannels : 2;
2118
2119     if (wav_start_capture (s, path, freq, bits, nchannels)) {
2120         monitor_printf(mon, "Faied to add wave capture\n");
2121         qemu_free (s);
2122     }
2123     QLIST_INSERT_HEAD (&capture_head, s, entries);
2124 }
2125 #endif
2126
2127 #if defined(TARGET_I386)
2128 static void do_inject_nmi(Monitor *mon, const QDict *qdict)
2129 {
2130     CPUState *env;
2131     int cpu_index = qdict_get_int(qdict, "cpu_index");
2132
2133     for (env = first_cpu; env != NULL; env = env->next_cpu)
2134         if (env->cpu_index == cpu_index) {
2135             cpu_interrupt(env, CPU_INTERRUPT_NMI);
2136             break;
2137         }
2138 }
2139 #endif
2140
2141 static void do_info_status_print(Monitor *mon, const QObject *data)
2142 {
2143     QDict *qdict;
2144
2145     qdict = qobject_to_qdict(data);
2146
2147     monitor_printf(mon, "VM status: ");
2148     if (qdict_get_bool(qdict, "running")) {
2149         monitor_printf(mon, "running");
2150         if (qdict_get_bool(qdict, "singlestep")) {
2151             monitor_printf(mon, " (single step mode)");
2152         }
2153     } else {
2154         monitor_printf(mon, "paused");
2155     }
2156
2157     monitor_printf(mon, "\n");
2158 }
2159
2160 static void do_info_status(Monitor *mon, QObject **ret_data)
2161 {
2162     *ret_data = qobject_from_jsonf("{ 'running': %i, 'singlestep': %i }",
2163                                     vm_running, singlestep);
2164 }
2165
2166 static qemu_acl *find_acl(Monitor *mon, const char *name)
2167 {
2168     qemu_acl *acl = qemu_acl_find(name);
2169
2170     if (!acl) {
2171         monitor_printf(mon, "acl: unknown list '%s'\n", name);
2172     }
2173     return acl;
2174 }
2175
2176 static void do_acl_show(Monitor *mon, const QDict *qdict)
2177 {
2178     const char *aclname = qdict_get_str(qdict, "aclname");
2179     qemu_acl *acl = find_acl(mon, aclname);
2180     qemu_acl_entry *entry;
2181     int i = 0;
2182
2183     if (acl) {
2184         monitor_printf(mon, "policy: %s\n",
2185                        acl->defaultDeny ? "deny" : "allow");
2186         QTAILQ_FOREACH(entry, &acl->entries, next) {
2187             i++;
2188             monitor_printf(mon, "%d: %s %s\n", i,
2189                            entry->deny ? "deny" : "allow", entry->match);
2190         }
2191     }
2192 }
2193
2194 static void do_acl_reset(Monitor *mon, const QDict *qdict)
2195 {
2196     const char *aclname = qdict_get_str(qdict, "aclname");
2197     qemu_acl *acl = find_acl(mon, aclname);
2198
2199     if (acl) {
2200         qemu_acl_reset(acl);
2201         monitor_printf(mon, "acl: removed all rules\n");
2202     }
2203 }
2204
2205 static void do_acl_policy(Monitor *mon, const QDict *qdict)
2206 {
2207     const char *aclname = qdict_get_str(qdict, "aclname");
2208     const char *policy = qdict_get_str(qdict, "policy");
2209     qemu_acl *acl = find_acl(mon, aclname);
2210
2211     if (acl) {
2212         if (strcmp(policy, "allow") == 0) {
2213             acl->defaultDeny = 0;
2214             monitor_printf(mon, "acl: policy set to 'allow'\n");
2215         } else if (strcmp(policy, "deny") == 0) {
2216             acl->defaultDeny = 1;
2217             monitor_printf(mon, "acl: policy set to 'deny'\n");
2218         } else {
2219             monitor_printf(mon, "acl: unknown policy '%s', "
2220                            "expected 'deny' or 'allow'\n", policy);
2221         }
2222     }
2223 }
2224
2225 static void do_acl_add(Monitor *mon, const QDict *qdict)
2226 {
2227     const char *aclname = qdict_get_str(qdict, "aclname");
2228     const char *match = qdict_get_str(qdict, "match");
2229     const char *policy = qdict_get_str(qdict, "policy");
2230     int has_index = qdict_haskey(qdict, "index");
2231     int index = qdict_get_try_int(qdict, "index", -1);
2232     qemu_acl *acl = find_acl(mon, aclname);
2233     int deny, ret;
2234
2235     if (acl) {
2236         if (strcmp(policy, "allow") == 0) {
2237             deny = 0;
2238         } else if (strcmp(policy, "deny") == 0) {
2239             deny = 1;
2240         } else {
2241             monitor_printf(mon, "acl: unknown policy '%s', "
2242                            "expected 'deny' or 'allow'\n", policy);
2243             return;
2244         }
2245         if (has_index)
2246             ret = qemu_acl_insert(acl, deny, match, index);
2247         else
2248             ret = qemu_acl_append(acl, deny, match);
2249         if (ret < 0)
2250             monitor_printf(mon, "acl: unable to add acl entry\n");
2251         else
2252             monitor_printf(mon, "acl: added rule at position %d\n", ret);
2253     }
2254 }
2255
2256 static void do_acl_remove(Monitor *mon, const QDict *qdict)
2257 {
2258     const char *aclname = qdict_get_str(qdict, "aclname");
2259     const char *match = qdict_get_str(qdict, "match");
2260     qemu_acl *acl = find_acl(mon, aclname);
2261     int ret;
2262
2263     if (acl) {
2264         ret = qemu_acl_remove(acl, match);
2265         if (ret < 0)
2266             monitor_printf(mon, "acl: no matching acl entry\n");
2267         else
2268             monitor_printf(mon, "acl: removed rule at position %d\n", ret);
2269     }
2270 }
2271
2272 #if defined(TARGET_I386)
2273 static void do_inject_mce(Monitor *mon, const QDict *qdict)
2274 {
2275     CPUState *cenv;
2276     int cpu_index = qdict_get_int(qdict, "cpu_index");
2277     int bank = qdict_get_int(qdict, "bank");
2278     uint64_t status = qdict_get_int(qdict, "status");
2279     uint64_t mcg_status = qdict_get_int(qdict, "mcg_status");
2280     uint64_t addr = qdict_get_int(qdict, "addr");
2281     uint64_t misc = qdict_get_int(qdict, "misc");
2282
2283     for (cenv = first_cpu; cenv != NULL; cenv = cenv->next_cpu)
2284         if (cenv->cpu_index == cpu_index && cenv->mcg_cap) {
2285             cpu_inject_x86_mce(cenv, bank, status, mcg_status, addr, misc);
2286             break;
2287         }
2288 }
2289 #endif
2290
2291 static int do_getfd(Monitor *mon, const QDict *qdict, QObject **ret_data)
2292 {
2293     const char *fdname = qdict_get_str(qdict, "fdname");
2294     mon_fd_t *monfd;
2295     int fd;
2296
2297     fd = qemu_chr_get_msgfd(mon->chr);
2298     if (fd == -1) {
2299         qerror_report(QERR_FD_NOT_SUPPLIED);
2300         return -1;
2301     }
2302
2303     if (qemu_isdigit(fdname[0])) {
2304         qerror_report(QERR_INVALID_PARAMETER_VALUE, "fdname",
2305                       "a name not starting with a digit");
2306         return -1;
2307     }
2308
2309     QLIST_FOREACH(monfd, &mon->fds, next) {
2310         if (strcmp(monfd->name, fdname) != 0) {
2311             continue;
2312         }
2313
2314         close(monfd->fd);
2315         monfd->fd = fd;
2316         return 0;
2317     }
2318
2319     monfd = qemu_mallocz(sizeof(mon_fd_t));
2320     monfd->name = qemu_strdup(fdname);
2321     monfd->fd = fd;
2322
2323     QLIST_INSERT_HEAD(&mon->fds, monfd, next);
2324     return 0;
2325 }
2326
2327 static int do_closefd(Monitor *mon, const QDict *qdict, QObject **ret_data)
2328 {
2329     const char *fdname = qdict_get_str(qdict, "fdname");
2330     mon_fd_t *monfd;
2331
2332     QLIST_FOREACH(monfd, &mon->fds, next) {
2333         if (strcmp(monfd->name, fdname) != 0) {
2334             continue;
2335         }
2336
2337         QLIST_REMOVE(monfd, next);
2338         close(monfd->fd);
2339         qemu_free(monfd->name);
2340         qemu_free(monfd);
2341         return 0;
2342     }
2343
2344     qerror_report(QERR_FD_NOT_FOUND, fdname);
2345     return -1;
2346 }
2347
2348 static void do_loadvm(Monitor *mon, const QDict *qdict)
2349 {
2350     int saved_vm_running  = vm_running;
2351     const char *name = qdict_get_str(qdict, "name");
2352
2353     vm_stop(0);
2354
2355     if (load_vmstate(name) >= 0 && saved_vm_running)
2356         vm_start();
2357 }
2358
2359 int monitor_get_fd(Monitor *mon, const char *fdname)
2360 {
2361     mon_fd_t *monfd;
2362
2363     QLIST_FOREACH(monfd, &mon->fds, next) {
2364         int fd;
2365
2366         if (strcmp(monfd->name, fdname) != 0) {
2367             continue;
2368         }
2369
2370         fd = monfd->fd;
2371
2372         /* caller takes ownership of fd */
2373         QLIST_REMOVE(monfd, next);
2374         qemu_free(monfd->name);
2375         qemu_free(monfd);
2376
2377         return fd;
2378     }
2379
2380     return -1;
2381 }
2382
2383 static const mon_cmd_t mon_cmds[] = {
2384 #include "qemu-monitor.h"
2385     { NULL, NULL, },
2386 };
2387
2388 /* Please update qemu-monitor.hx when adding or changing commands */
2389 static const mon_cmd_t info_cmds[] = {
2390     {
2391         .name       = "version",
2392         .args_type  = "",
2393         .params     = "",
2394         .help       = "show the version of QEMU",
2395         .user_print = do_info_version_print,
2396         .mhandler.info_new = do_info_version,
2397     },
2398     {
2399         .name       = "commands",
2400         .args_type  = "",
2401         .params     = "",
2402         .help       = "list QMP available commands",
2403         .user_print = monitor_user_noop,
2404         .mhandler.info_new = do_info_commands,
2405     },
2406     {
2407         .name       = "network",
2408         .args_type  = "",
2409         .params     = "",
2410         .help       = "show the network state",
2411         .mhandler.info = do_info_network,
2412     },
2413     {
2414         .name       = "chardev",
2415         .args_type  = "",
2416         .params     = "",
2417         .help       = "show the character devices",
2418         .user_print = qemu_chr_info_print,
2419         .mhandler.info_new = qemu_chr_info,
2420     },
2421     {
2422         .name       = "block",
2423         .args_type  = "",
2424         .params     = "",
2425         .help       = "show the block devices",
2426         .user_print = bdrv_info_print,
2427         .mhandler.info_new = bdrv_info,
2428     },
2429     {
2430         .name       = "blockstats",
2431         .args_type  = "",
2432         .params     = "",
2433         .help       = "show block device statistics",
2434         .user_print = bdrv_stats_print,
2435         .mhandler.info_new = bdrv_info_stats,
2436     },
2437     {
2438         .name       = "registers",
2439         .args_type  = "",
2440         .params     = "",
2441         .help       = "show the cpu registers",
2442         .mhandler.info = do_info_registers,
2443     },
2444     {
2445         .name       = "cpus",
2446         .args_type  = "",
2447         .params     = "",
2448         .help       = "show infos for each CPU",
2449         .user_print = monitor_print_cpus,
2450         .mhandler.info_new = do_info_cpus,
2451     },
2452     {
2453         .name       = "history",
2454         .args_type  = "",
2455         .params     = "",
2456         .help       = "show the command line history",
2457         .mhandler.info = do_info_history,
2458     },
2459     {
2460         .name       = "irq",
2461         .args_type  = "",
2462         .params     = "",
2463         .help       = "show the interrupts statistics (if available)",
2464         .mhandler.info = irq_info,
2465     },
2466     {
2467         .name       = "pic",
2468         .args_type  = "",
2469         .params     = "",
2470         .help       = "show i8259 (PIC) state",
2471         .mhandler.info = pic_info,
2472     },
2473     {
2474         .name       = "pci",
2475         .args_type  = "",
2476         .params     = "",
2477         .help       = "show PCI info",
2478         .user_print = do_pci_info_print,
2479         .mhandler.info_new = do_pci_info,
2480     },
2481 #if defined(TARGET_I386) || defined(TARGET_SH4)
2482     {
2483         .name       = "tlb",
2484         .args_type  = "",
2485         .params     = "",
2486         .help       = "show virtual to physical memory mappings",
2487         .mhandler.info = tlb_info,
2488     },
2489 #endif
2490 #if defined(TARGET_I386)
2491     {
2492         .name       = "mem",
2493         .args_type  = "",
2494         .params     = "",
2495         .help       = "show the active virtual memory mappings",
2496         .mhandler.info = mem_info,
2497     },
2498 #endif
2499     {
2500         .name       = "jit",
2501         .args_type  = "",
2502         .params     = "",
2503         .help       = "show dynamic compiler info",
2504         .mhandler.info = do_info_jit,
2505     },
2506     {
2507         .name       = "kvm",
2508         .args_type  = "",
2509         .params     = "",
2510         .help       = "show KVM information",
2511         .user_print = do_info_kvm_print,
2512         .mhandler.info_new = do_info_kvm,
2513     },
2514     {
2515         .name       = "numa",
2516         .args_type  = "",
2517         .params     = "",
2518         .help       = "show NUMA information",
2519         .mhandler.info = do_info_numa,
2520     },
2521     {
2522         .name       = "usb",
2523         .args_type  = "",
2524         .params     = "",
2525         .help       = "show guest USB devices",
2526         .mhandler.info = usb_info,
2527     },
2528     {
2529         .name       = "usbhost",
2530         .args_type  = "",
2531         .params     = "",
2532         .help       = "show host USB devices",
2533         .mhandler.info = usb_host_info,
2534     },
2535     {
2536         .name       = "profile",
2537         .args_type  = "",
2538         .params     = "",
2539         .help       = "show profiling information",
2540         .mhandler.info = do_info_profile,
2541     },
2542     {
2543         .name       = "capture",
2544         .args_type  = "",
2545         .params     = "",
2546         .help       = "show capture information",
2547         .mhandler.info = do_info_capture,
2548     },
2549     {
2550         .name       = "snapshots",
2551         .args_type  = "",
2552         .params     = "",
2553         .help       = "show the currently saved VM snapshots",
2554         .mhandler.info = do_info_snapshots,
2555     },
2556     {
2557         .name       = "status",
2558         .args_type  = "",
2559         .params     = "",
2560         .help       = "show the current VM status (running|paused)",
2561         .user_print = do_info_status_print,
2562         .mhandler.info_new = do_info_status,
2563     },
2564     {
2565         .name       = "pcmcia",
2566         .args_type  = "",
2567         .params     = "",
2568         .help       = "show guest PCMCIA status",
2569         .mhandler.info = pcmcia_info,
2570     },
2571     {
2572         .name       = "mice",
2573         .args_type  = "",
2574         .params     = "",
2575         .help       = "show which guest mouse is receiving events",
2576         .user_print = do_info_mice_print,
2577         .mhandler.info_new = do_info_mice,
2578     },
2579     {
2580         .name       = "vnc",
2581         .args_type  = "",
2582         .params     = "",
2583         .help       = "show the vnc server status",
2584         .user_print = do_info_vnc_print,
2585         .mhandler.info_new = do_info_vnc,
2586     },
2587     {
2588         .name       = "name",
2589         .args_type  = "",
2590         .params     = "",
2591         .help       = "show the current VM name",
2592         .user_print = do_info_name_print,
2593         .mhandler.info_new = do_info_name,
2594     },
2595     {
2596         .name       = "uuid",
2597         .args_type  = "",
2598         .params     = "",
2599         .help       = "show the current VM UUID",
2600         .user_print = do_info_uuid_print,
2601         .mhandler.info_new = do_info_uuid,
2602     },
2603 #if defined(TARGET_PPC)
2604     {
2605         .name       = "cpustats",
2606         .args_type  = "",
2607         .params     = "",
2608         .help       = "show CPU statistics",
2609         .mhandler.info = do_info_cpu_stats,
2610     },
2611 #endif
2612 #if defined(CONFIG_SLIRP)
2613     {
2614         .name       = "usernet",
2615         .args_type  = "",
2616         .params     = "",
2617         .help       = "show user network stack connection states",
2618         .mhandler.info = do_info_usernet,
2619     },
2620 #endif
2621     {
2622         .name       = "migrate",
2623         .args_type  = "",
2624         .params     = "",
2625         .help       = "show migration status",
2626         .user_print = do_info_migrate_print,
2627         .mhandler.info_new = do_info_migrate,
2628     },
2629     {
2630         .name       = "balloon",
2631         .args_type  = "",
2632         .params     = "",
2633         .help       = "show balloon information",
2634         .user_print = monitor_print_balloon,
2635         .mhandler.info_async = do_info_balloon,
2636         .async      = 1,
2637     },
2638     {
2639         .name       = "qtree",
2640         .args_type  = "",
2641         .params     = "",
2642         .help       = "show device tree",
2643         .mhandler.info = do_info_qtree,
2644     },
2645     {
2646         .name       = "qdm",
2647         .args_type  = "",
2648         .params     = "",
2649         .help       = "show qdev device model list",
2650         .mhandler.info = do_info_qdm,
2651     },
2652     {
2653         .name       = "roms",
2654         .args_type  = "",
2655         .params     = "",
2656         .help       = "show roms",
2657         .mhandler.info = do_info_roms,
2658     },
2659     {
2660         .name       = NULL,
2661     },
2662 };
2663
2664 /*******************************************************************/
2665
2666 static const char *pch;
2667 static jmp_buf expr_env;
2668
2669 #define MD_TLONG 0
2670 #define MD_I32   1
2671
2672 typedef struct MonitorDef {
2673     const char *name;
2674     int offset;
2675     target_long (*get_value)(const struct MonitorDef *md, int val);
2676     int type;
2677 } MonitorDef;
2678
2679 #if defined(TARGET_I386)
2680 static target_long monitor_get_pc (const struct MonitorDef *md, int val)
2681 {
2682     CPUState *env = mon_get_cpu();
2683     return env->eip + env->segs[R_CS].base;
2684 }
2685 #endif
2686
2687 #if defined(TARGET_PPC)
2688 static target_long monitor_get_ccr (const struct MonitorDef *md, int val)
2689 {
2690     CPUState *env = mon_get_cpu();
2691     unsigned int u;
2692     int i;
2693
2694     u = 0;
2695     for (i = 0; i < 8; i++)
2696         u |= env->crf[i] << (32 - (4 * i));
2697
2698     return u;
2699 }
2700
2701 static target_long monitor_get_msr (const struct MonitorDef *md, int val)
2702 {
2703     CPUState *env = mon_get_cpu();
2704     return env->msr;
2705 }
2706
2707 static target_long monitor_get_xer (const struct MonitorDef *md, int val)
2708 {
2709     CPUState *env = mon_get_cpu();
2710     return env->xer;
2711 }
2712
2713 static target_long monitor_get_decr (const struct MonitorDef *md, int val)
2714 {
2715     CPUState *env = mon_get_cpu();
2716     return cpu_ppc_load_decr(env);
2717 }
2718
2719 static target_long monitor_get_tbu (const struct MonitorDef *md, int val)
2720 {
2721     CPUState *env = mon_get_cpu();
2722     return cpu_ppc_load_tbu(env);
2723 }
2724
2725 static target_long monitor_get_tbl (const struct MonitorDef *md, int val)
2726 {
2727     CPUState *env = mon_get_cpu();
2728     return cpu_ppc_load_tbl(env);
2729 }
2730 #endif
2731
2732 #if defined(TARGET_SPARC)
2733 #ifndef TARGET_SPARC64
2734 static target_long monitor_get_psr (const struct MonitorDef *md, int val)
2735 {
2736     CPUState *env = mon_get_cpu();
2737
2738     return cpu_get_psr(env);
2739 }
2740 #endif
2741
2742 static target_long monitor_get_reg(const struct MonitorDef *md, int val)
2743 {
2744     CPUState *env = mon_get_cpu();
2745     return env->regwptr[val];
2746 }
2747 #endif
2748
2749 static const MonitorDef monitor_defs[] = {
2750 #ifdef TARGET_I386
2751
2752 #define SEG(name, seg) \
2753     { name, offsetof(CPUState, segs[seg].selector), NULL, MD_I32 },\
2754     { name ".base", offsetof(CPUState, segs[seg].base) },\
2755     { name ".limit", offsetof(CPUState, segs[seg].limit), NULL, MD_I32 },
2756
2757     { "eax", offsetof(CPUState, regs[0]) },
2758     { "ecx", offsetof(CPUState, regs[1]) },
2759     { "edx", offsetof(CPUState, regs[2]) },
2760     { "ebx", offsetof(CPUState, regs[3]) },
2761     { "esp|sp", offsetof(CPUState, regs[4]) },
2762     { "ebp|fp", offsetof(CPUState, regs[5]) },
2763     { "esi", offsetof(CPUState, regs[6]) },
2764     { "edi", offsetof(CPUState, regs[7]) },
2765 #ifdef TARGET_X86_64
2766     { "r8", offsetof(CPUState, regs[8]) },
2767     { "r9", offsetof(CPUState, regs[9]) },
2768     { "r10", offsetof(CPUState, regs[10]) },
2769     { "r11", offsetof(CPUState, regs[11]) },
2770     { "r12", offsetof(CPUState, regs[12]) },
2771     { "r13", offsetof(CPUState, regs[13]) },
2772     { "r14", offsetof(CPUState, regs[14]) },
2773     { "r15", offsetof(CPUState, regs[15]) },
2774 #endif
2775     { "eflags", offsetof(CPUState, eflags) },
2776     { "eip", offsetof(CPUState, eip) },
2777     SEG("cs", R_CS)
2778     SEG("ds", R_DS)
2779     SEG("es", R_ES)
2780     SEG("ss", R_SS)
2781     SEG("fs", R_FS)
2782     SEG("gs", R_GS)
2783     { "pc", 0, monitor_get_pc, },
2784 #elif defined(TARGET_PPC)
2785     /* General purpose registers */
2786     { "r0", offsetof(CPUState, gpr[0]) },
2787     { "r1", offsetof(CPUState, gpr[1]) },
2788     { "r2", offsetof(CPUState, gpr[2]) },
2789     { "r3", offsetof(CPUState, gpr[3]) },
2790     { "r4", offsetof(CPUState, gpr[4]) },
2791     { "r5", offsetof(CPUState, gpr[5]) },
2792     { "r6", offsetof(CPUState, gpr[6]) },
2793     { "r7", offsetof(CPUState, gpr[7]) },
2794     { "r8", offsetof(CPUState, gpr[8]) },
2795     { "r9", offsetof(CPUState, gpr[9]) },
2796     { "r10", offsetof(CPUState, gpr[10]) },
2797     { "r11", offsetof(CPUState, gpr[11]) },
2798     { "r12", offsetof(CPUState, gpr[12]) },
2799     { "r13", offsetof(CPUState, gpr[13]) },
2800     { "r14", offsetof(CPUState, gpr[14]) },
2801     { "r15", offsetof(CPUState, gpr[15]) },
2802     { "r16", offsetof(CPUState, gpr[16]) },
2803     { "r17", offsetof(CPUState, gpr[17]) },
2804     { "r18", offsetof(CPUState, gpr[18]) },
2805     { "r19", offsetof(CPUState, gpr[19]) },
2806     { "r20", offsetof(CPUState, gpr[20]) },
2807     { "r21", offsetof(CPUState, gpr[21]) },
2808     { "r22", offsetof(CPUState, gpr[22]) },
2809     { "r23", offsetof(CPUState, gpr[23]) },
2810     { "r24", offsetof(CPUState, gpr[24]) },
2811     { "r25", offsetof(CPUState, gpr[25]) },
2812     { "r26", offsetof(CPUState, gpr[26]) },
2813     { "r27", offsetof(CPUState, gpr[27]) },
2814     { "r28", offsetof(CPUState, gpr[28]) },
2815     { "r29", offsetof(CPUState, gpr[29]) },
2816     { "r30", offsetof(CPUState, gpr[30]) },
2817     { "r31", offsetof(CPUState, gpr[31]) },
2818     /* Floating point registers */
2819     { "f0", offsetof(CPUState, fpr[0]) },
2820     { "f1", offsetof(CPUState, fpr[1]) },
2821     { "f2", offsetof(CPUState, fpr[2]) },
2822     { "f3", offsetof(CPUState, fpr[3]) },
2823     { "f4", offsetof(CPUState, fpr[4]) },
2824     { "f5", offsetof(CPUState, fpr[5]) },
2825     { "f6", offsetof(CPUState, fpr[6]) },
2826     { "f7", offsetof(CPUState, fpr[7]) },
2827     { "f8", offsetof(CPUState, fpr[8]) },
2828     { "f9", offsetof(CPUState, fpr[9]) },
2829     { "f10", offsetof(CPUState, fpr[10]) },
2830     { "f11", offsetof(CPUState, fpr[11]) },
2831     { "f12", offsetof(CPUState, fpr[12]) },
2832     { "f13", offsetof(CPUState, fpr[13]) },
2833     { "f14", offsetof(CPUState, fpr[14]) },
2834     { "f15", offsetof(CPUState, fpr[15]) },
2835     { "f16", offsetof(CPUState, fpr[16]) },
2836     { "f17", offsetof(CPUState, fpr[17]) },
2837     { "f18", offsetof(CPUState, fpr[18]) },
2838     { "f19", offsetof(CPUState, fpr[19]) },
2839     { "f20", offsetof(CPUState, fpr[20]) },
2840     { "f21", offsetof(CPUState, fpr[21]) },
2841     { "f22", offsetof(CPUState, fpr[22]) },
2842     { "f23", offsetof(CPUState, fpr[23]) },
2843     { "f24", offsetof(CPUState, fpr[24]) },
2844     { "f25", offsetof(CPUState, fpr[25]) },
2845     { "f26", offsetof(CPUState, fpr[26]) },
2846     { "f27", offsetof(CPUState, fpr[27]) },
2847     { "f28", offsetof(CPUState, fpr[28]) },
2848     { "f29", offsetof(CPUState, fpr[29]) },
2849     { "f30", offsetof(CPUState, fpr[30]) },
2850     { "f31", offsetof(CPUState, fpr[31]) },
2851     { "fpscr", offsetof(CPUState, fpscr) },
2852     /* Next instruction pointer */
2853     { "nip|pc", offsetof(CPUState, nip) },
2854     { "lr", offsetof(CPUState, lr) },
2855     { "ctr", offsetof(CPUState, ctr) },
2856     { "decr", 0, &monitor_get_decr, },
2857     { "ccr", 0, &monitor_get_ccr, },
2858     /* Machine state register */
2859     { "msr", 0, &monitor_get_msr, },
2860     { "xer", 0, &monitor_get_xer, },
2861     { "tbu", 0, &monitor_get_tbu, },
2862     { "tbl", 0, &monitor_get_tbl, },
2863 #if defined(TARGET_PPC64)
2864     /* Address space register */
2865     { "asr", offsetof(CPUState, asr) },
2866 #endif
2867     /* Segment registers */
2868     { "sdr1", offsetof(CPUState, sdr1) },
2869     { "sr0", offsetof(CPUState, sr[0]) },
2870     { "sr1", offsetof(CPUState, sr[1]) },
2871     { "sr2", offsetof(CPUState, sr[2]) },
2872     { "sr3", offsetof(CPUState, sr[3]) },
2873     { "sr4", offsetof(CPUState, sr[4]) },
2874     { "sr5", offsetof(CPUState, sr[5]) },
2875     { "sr6", offsetof(CPUState, sr[6]) },
2876     { "sr7", offsetof(CPUState, sr[7]) },
2877     { "sr8", offsetof(CPUState, sr[8]) },
2878     { "sr9", offsetof(CPUState, sr[9]) },
2879     { "sr10", offsetof(CPUState, sr[10]) },
2880     { "sr11", offsetof(CPUState, sr[11]) },
2881     { "sr12", offsetof(CPUState, sr[12]) },
2882     { "sr13", offsetof(CPUState, sr[13]) },
2883     { "sr14", offsetof(CPUState, sr[14]) },
2884     { "sr15", offsetof(CPUState, sr[15]) },
2885     /* Too lazy to put BATs and SPRs ... */
2886 #elif defined(TARGET_SPARC)
2887     { "g0", offsetof(CPUState, gregs[0]) },
2888     { "g1", offsetof(CPUState, gregs[1]) },
2889     { "g2", offsetof(CPUState, gregs[2]) },
2890     { "g3", offsetof(CPUState, gregs[3]) },
2891     { "g4", offsetof(CPUState, gregs[4]) },
2892     { "g5", offsetof(CPUState, gregs[5]) },
2893     { "g6", offsetof(CPUState, gregs[6]) },
2894     { "g7", offsetof(CPUState, gregs[7]) },
2895     { "o0", 0, monitor_get_reg },
2896     { "o1", 1, monitor_get_reg },
2897     { "o2", 2, monitor_get_reg },
2898     { "o3", 3, monitor_get_reg },
2899     { "o4", 4, monitor_get_reg },
2900     { "o5", 5, monitor_get_reg },
2901     { "o6", 6, monitor_get_reg },
2902     { "o7", 7, monitor_get_reg },
2903     { "l0", 8, monitor_get_reg },
2904     { "l1", 9, monitor_get_reg },
2905     { "l2", 10, monitor_get_reg },
2906     { "l3", 11, monitor_get_reg },
2907     { "l4", 12, monitor_get_reg },
2908     { "l5", 13, monitor_get_reg },
2909     { "l6", 14, monitor_get_reg },
2910     { "l7", 15, monitor_get_reg },
2911     { "i0", 16, monitor_get_reg },
2912     { "i1", 17, monitor_get_reg },
2913     { "i2", 18, monitor_get_reg },
2914     { "i3", 19, monitor_get_reg },
2915     { "i4", 20, monitor_get_reg },
2916     { "i5", 21, monitor_get_reg },
2917     { "i6", 22, monitor_get_reg },
2918     { "i7", 23, monitor_get_reg },
2919     { "pc", offsetof(CPUState, pc) },
2920     { "npc", offsetof(CPUState, npc) },
2921     { "y", offsetof(CPUState, y) },
2922 #ifndef TARGET_SPARC64
2923     { "psr", 0, &monitor_get_psr, },
2924     { "wim", offsetof(CPUState, wim) },
2925 #endif
2926     { "tbr", offsetof(CPUState, tbr) },
2927     { "fsr", offsetof(CPUState, fsr) },
2928     { "f0", offsetof(CPUState, fpr[0]) },
2929     { "f1", offsetof(CPUState, fpr[1]) },
2930     { "f2", offsetof(CPUState, fpr[2]) },
2931     { "f3", offsetof(CPUState, fpr[3]) },
2932     { "f4", offsetof(CPUState, fpr[4]) },
2933     { "f5", offsetof(CPUState, fpr[5]) },
2934     { "f6", offsetof(CPUState, fpr[6]) },
2935     { "f7", offsetof(CPUState, fpr[7]) },
2936     { "f8", offsetof(CPUState, fpr[8]) },
2937     { "f9", offsetof(CPUState, fpr[9]) },
2938     { "f10", offsetof(CPUState, fpr[10]) },
2939     { "f11", offsetof(CPUState, fpr[11]) },
2940     { "f12", offsetof(CPUState, fpr[12]) },
2941     { "f13", offsetof(CPUState, fpr[13]) },
2942     { "f14", offsetof(CPUState, fpr[14]) },
2943     { "f15", offsetof(CPUState, fpr[15]) },
2944     { "f16", offsetof(CPUState, fpr[16]) },
2945     { "f17", offsetof(CPUState, fpr[17]) },
2946     { "f18", offsetof(CPUState, fpr[18]) },
2947     { "f19", offsetof(CPUState, fpr[19]) },
2948     { "f20", offsetof(CPUState, fpr[20]) },
2949     { "f21", offsetof(CPUState, fpr[21]) },
2950     { "f22", offsetof(CPUState, fpr[22]) },
2951     { "f23", offsetof(CPUState, fpr[23]) },
2952     { "f24", offsetof(CPUState, fpr[24]) },
2953     { "f25", offsetof(CPUState, fpr[25]) },
2954     { "f26", offsetof(CPUState, fpr[26]) },
2955     { "f27", offsetof(CPUState, fpr[27]) },
2956     { "f28", offsetof(CPUState, fpr[28]) },
2957     { "f29", offsetof(CPUState, fpr[29]) },
2958     { "f30", offsetof(CPUState, fpr[30]) },
2959     { "f31", offsetof(CPUState, fpr[31]) },
2960 #ifdef TARGET_SPARC64
2961     { "f32", offsetof(CPUState, fpr[32]) },
2962     { "f34", offsetof(CPUState, fpr[34]) },
2963     { "f36", offsetof(CPUState, fpr[36]) },
2964     { "f38", offsetof(CPUState, fpr[38]) },
2965     { "f40", offsetof(CPUState, fpr[40]) },
2966     { "f42", offsetof(CPUState, fpr[42]) },
2967     { "f44", offsetof(CPUState, fpr[44]) },
2968     { "f46", offsetof(CPUState, fpr[46]) },
2969     { "f48", offsetof(CPUState, fpr[48]) },
2970     { "f50", offsetof(CPUState, fpr[50]) },
2971     { "f52", offsetof(CPUState, fpr[52]) },
2972     { "f54", offsetof(CPUState, fpr[54]) },
2973     { "f56", offsetof(CPUState, fpr[56]) },
2974     { "f58", offsetof(CPUState, fpr[58]) },
2975     { "f60", offsetof(CPUState, fpr[60]) },
2976     { "f62", offsetof(CPUState, fpr[62]) },
2977     { "asi", offsetof(CPUState, asi) },
2978     { "pstate", offsetof(CPUState, pstate) },
2979     { "cansave", offsetof(CPUState, cansave) },
2980     { "canrestore", offsetof(CPUState, canrestore) },
2981     { "otherwin", offsetof(CPUState, otherwin) },
2982     { "wstate", offsetof(CPUState, wstate) },
2983     { "cleanwin", offsetof(CPUState, cleanwin) },
2984     { "fprs", offsetof(CPUState, fprs) },
2985 #endif
2986 #endif
2987     { NULL },
2988 };
2989
2990 static void expr_error(Monitor *mon, const char *msg)
2991 {
2992     monitor_printf(mon, "%s\n", msg);
2993     longjmp(expr_env, 1);
2994 }
2995
2996 /* return 0 if OK, -1 if not found */
2997 static int get_monitor_def(target_long *pval, const char *name)
2998 {
2999     const MonitorDef *md;
3000     void *ptr;
3001
3002     for(md = monitor_defs; md->name != NULL; md++) {
3003         if (compare_cmd(name, md->name)) {
3004             if (md->get_value) {
3005                 *pval = md->get_value(md, md->offset);
3006             } else {
3007                 CPUState *env = mon_get_cpu();
3008                 ptr = (uint8_t *)env + md->offset;
3009                 switch(md->type) {
3010                 case MD_I32:
3011                     *pval = *(int32_t *)ptr;
3012                     break;
3013                 case MD_TLONG:
3014                     *pval = *(target_long *)ptr;
3015                     break;
3016                 default:
3017                     *pval = 0;
3018                     break;
3019                 }
3020             }
3021             return 0;
3022         }
3023     }
3024     return -1;
3025 }
3026
3027 static void next(void)
3028 {
3029     if (*pch != '\0') {
3030         pch++;
3031         while (qemu_isspace(*pch))
3032             pch++;
3033     }
3034 }
3035
3036 static int64_t expr_sum(Monitor *mon);
3037
3038 static int64_t expr_unary(Monitor *mon)
3039 {
3040     int64_t n;
3041     char *p;
3042     int ret;
3043
3044     switch(*pch) {
3045     case '+':
3046         next();
3047         n = expr_unary(mon);
3048         break;
3049     case '-':
3050         next();
3051         n = -expr_unary(mon);
3052         break;
3053     case '~':
3054         next();
3055         n = ~expr_unary(mon);
3056         break;
3057     case '(':
3058         next();
3059         n = expr_sum(mon);
3060         if (*pch != ')') {
3061             expr_error(mon, "')' expected");
3062         }
3063         next();
3064         break;
3065     case '\'':
3066         pch++;
3067         if (*pch == '\0')
3068             expr_error(mon, "character constant expected");
3069         n = *pch;
3070         pch++;
3071         if (*pch != '\'')
3072             expr_error(mon, "missing terminating \' character");
3073         next();
3074         break;
3075     case '$':
3076         {
3077             char buf[128], *q;
3078             target_long reg=0;
3079
3080             pch++;
3081             q = buf;
3082             while ((*pch >= 'a' && *pch <= 'z') ||
3083                    (*pch >= 'A' && *pch <= 'Z') ||
3084                    (*pch >= '0' && *pch <= '9') ||
3085                    *pch == '_' || *pch == '.') {
3086                 if ((q - buf) < sizeof(buf) - 1)
3087                     *q++ = *pch;
3088                 pch++;
3089             }
3090             while (qemu_isspace(*pch))
3091                 pch++;
3092             *q = 0;
3093             ret = get_monitor_def(&reg, buf);
3094             if (ret < 0)
3095                 expr_error(mon, "unknown register");
3096             n = reg;
3097         }
3098         break;
3099     case '\0':
3100         expr_error(mon, "unexpected end of expression");
3101         n = 0;
3102         break;
3103     default:
3104 #if TARGET_PHYS_ADDR_BITS > 32
3105         n = strtoull(pch, &p, 0);
3106 #else
3107         n = strtoul(pch, &p, 0);
3108 #endif
3109         if (pch == p) {
3110             expr_error(mon, "invalid char in expression");
3111         }
3112         pch = p;
3113         while (qemu_isspace(*pch))
3114             pch++;
3115         break;
3116     }
3117     return n;
3118 }
3119
3120
3121 static int64_t expr_prod(Monitor *mon)
3122 {
3123     int64_t val, val2;
3124     int op;
3125
3126     val = expr_unary(mon);
3127     for(;;) {
3128         op = *pch;
3129         if (op != '*' && op != '/' && op != '%')
3130             break;
3131         next();
3132         val2 = expr_unary(mon);
3133         switch(op) {
3134         default:
3135         case '*':
3136             val *= val2;
3137             break;
3138         case '/':
3139         case '%':
3140             if (val2 == 0)
3141                 expr_error(mon, "division by zero");
3142             if (op == '/')
3143                 val /= val2;
3144             else
3145                 val %= val2;
3146             break;
3147         }
3148     }
3149     return val;
3150 }
3151
3152 static int64_t expr_logic(Monitor *mon)
3153 {
3154     int64_t val, val2;
3155     int op;
3156
3157     val = expr_prod(mon);
3158     for(;;) {
3159         op = *pch;
3160         if (op != '&' && op != '|' && op != '^')
3161             break;
3162         next();
3163         val2 = expr_prod(mon);
3164         switch(op) {
3165         default:
3166         case '&':
3167             val &= val2;
3168             break;
3169         case '|':
3170             val |= val2;
3171             break;
3172         case '^':
3173             val ^= val2;
3174             break;
3175         }
3176     }
3177     return val;
3178 }
3179
3180 static int64_t expr_sum(Monitor *mon)
3181 {
3182     int64_t val, val2;
3183     int op;
3184
3185     val = expr_logic(mon);
3186     for(;;) {
3187         op = *pch;
3188         if (op != '+' && op != '-')
3189             break;
3190         next();
3191         val2 = expr_logic(mon);
3192         if (op == '+')
3193             val += val2;
3194         else
3195             val -= val2;
3196     }
3197     return val;
3198 }
3199
3200 static int get_expr(Monitor *mon, int64_t *pval, const char **pp)
3201 {
3202     pch = *pp;
3203     if (setjmp(expr_env)) {
3204         *pp = pch;
3205         return -1;
3206     }
3207     while (qemu_isspace(*pch))
3208         pch++;
3209     *pval = expr_sum(mon);
3210     *pp = pch;
3211     return 0;
3212 }
3213
3214 static int get_double(Monitor *mon, double *pval, const char **pp)
3215 {
3216     const char *p = *pp;
3217     char *tailp;
3218     double d;
3219
3220     d = strtod(p, &tailp);
3221     if (tailp == p) {
3222         monitor_printf(mon, "Number expected\n");
3223         return -1;
3224     }
3225     if (d != d || d - d != 0) {
3226         /* NaN or infinity */
3227         monitor_printf(mon, "Bad number\n");
3228         return -1;
3229     }
3230     *pval = d;
3231     *pp = tailp;
3232     return 0;
3233 }
3234
3235 static int get_str(char *buf, int buf_size, const char **pp)
3236 {
3237     const char *p;
3238     char *q;
3239     int c;
3240
3241     q = buf;
3242     p = *pp;
3243     while (qemu_isspace(*p))
3244         p++;
3245     if (*p == '\0') {
3246     fail:
3247         *q = '\0';
3248         *pp = p;
3249         return -1;
3250     }
3251     if (*p == '\"') {
3252         p++;
3253         while (*p != '\0' && *p != '\"') {
3254             if (*p == '\\') {
3255                 p++;
3256                 c = *p++;
3257                 switch(c) {
3258                 case 'n':
3259                     c = '\n';
3260                     break;
3261                 case 'r':
3262                     c = '\r';
3263                     break;
3264                 case '\\':
3265                 case '\'':
3266                 case '\"':
3267                     break;
3268                 default:
3269                     qemu_printf("unsupported escape code: '\\%c'\n", c);
3270                     goto fail;
3271                 }
3272                 if ((q - buf) < buf_size - 1) {
3273                     *q++ = c;
3274                 }
3275             } else {
3276                 if ((q - buf) < buf_size - 1) {
3277                     *q++ = *p;
3278                 }
3279                 p++;
3280             }
3281         }
3282         if (*p != '\"') {
3283             qemu_printf("unterminated string\n");
3284             goto fail;
3285         }
3286         p++;
3287     } else {
3288         while (*p != '\0' && !qemu_isspace(*p)) {
3289             if ((q - buf) < buf_size - 1) {
3290                 *q++ = *p;
3291             }
3292             p++;
3293         }
3294     }
3295     *q = '\0';
3296     *pp = p;
3297     return 0;
3298 }
3299
3300 /*
3301  * Store the command-name in cmdname, and return a pointer to
3302  * the remaining of the command string.
3303  */
3304 static const char *get_command_name(const char *cmdline,
3305                                     char *cmdname, size_t nlen)
3306 {
3307     size_t len;
3308     const char *p, *pstart;
3309
3310     p = cmdline;
3311     while (qemu_isspace(*p))
3312         p++;
3313     if (*p == '\0')
3314         return NULL;
3315     pstart = p;
3316     while (*p != '\0' && *p != '/' && !qemu_isspace(*p))
3317         p++;
3318     len = p - pstart;
3319     if (len > nlen - 1)
3320         len = nlen - 1;
3321     memcpy(cmdname, pstart, len);
3322     cmdname[len] = '\0';
3323     return p;
3324 }
3325
3326 /**
3327  * Read key of 'type' into 'key' and return the current
3328  * 'type' pointer.
3329  */
3330 static char *key_get_info(const char *type, char **key)
3331 {
3332     size_t len;
3333     char *p, *str;
3334
3335     if (*type == ',')
3336         type++;
3337
3338     p = strchr(type, ':');
3339     if (!p) {
3340         *key = NULL;
3341         return NULL;
3342     }
3343     len = p - type;
3344
3345     str = qemu_malloc(len + 1);
3346     memcpy(str, type, len);
3347     str[len] = '\0';
3348
3349     *key = str;
3350     return ++p;
3351 }
3352
3353 static int default_fmt_format = 'x';
3354 static int default_fmt_size = 4;
3355
3356 #define MAX_ARGS 16
3357
3358 static int is_valid_option(const char *c, const char *typestr)
3359 {
3360     char option[3];
3361
3362     option[0] = '-';
3363     option[1] = *c;
3364     option[2] = '\0';
3365
3366     typestr = strstr(typestr, option);
3367     return (typestr != NULL);
3368 }
3369
3370 static const mon_cmd_t *monitor_find_command(const char *cmdname)
3371 {
3372     const mon_cmd_t *cmd;
3373
3374     for (cmd = mon_cmds; cmd->name != NULL; cmd++) {
3375         if (compare_cmd(cmdname, cmd->name)) {
3376             return cmd;
3377         }
3378     }
3379
3380     return NULL;
3381 }
3382
3383 static const mon_cmd_t *monitor_parse_command(Monitor *mon,
3384                                               const char *cmdline,
3385                                               QDict *qdict)
3386 {
3387     const char *p, *typestr;
3388     int c;
3389     const mon_cmd_t *cmd;
3390     char cmdname[256];
3391     char buf[1024];
3392     char *key;
3393
3394 #ifdef DEBUG
3395     monitor_printf(mon, "command='%s'\n", cmdline);
3396 #endif
3397
3398     /* extract the command name */
3399     p = get_command_name(cmdline, cmdname, sizeof(cmdname));
3400     if (!p)
3401         return NULL;
3402
3403     cmd = monitor_find_command(cmdname);
3404     if (!cmd) {
3405         monitor_printf(mon, "unknown command: '%s'\n", cmdname);
3406         return NULL;
3407     }
3408
3409     /* parse the parameters */
3410     typestr = cmd->args_type;
3411     for(;;) {
3412         typestr = key_get_info(typestr, &key);
3413         if (!typestr)
3414             break;
3415         c = *typestr;
3416         typestr++;
3417         switch(c) {
3418         case 'F':
3419         case 'B':
3420         case 's':
3421             {
3422                 int ret;
3423
3424                 while (qemu_isspace(*p))
3425                     p++;
3426                 if (*typestr == '?') {
3427                     typestr++;
3428                     if (*p == '\0') {
3429                         /* no optional string: NULL argument */
3430                         break;
3431                     }
3432                 }
3433                 ret = get_str(buf, sizeof(buf), &p);
3434                 if (ret < 0) {
3435                     switch(c) {
3436                     case 'F':
3437                         monitor_printf(mon, "%s: filename expected\n",
3438                                        cmdname);
3439                         break;
3440                     case 'B':
3441                         monitor_printf(mon, "%s: block device name expected\n",
3442                                        cmdname);
3443                         break;
3444                     default:
3445                         monitor_printf(mon, "%s: string expected\n", cmdname);
3446                         break;
3447                     }
3448                     goto fail;
3449                 }
3450                 qdict_put(qdict, key, qstring_from_str(buf));
3451             }
3452             break;
3453         case 'O':
3454             {
3455                 QemuOptsList *opts_list;
3456                 QemuOpts *opts;
3457
3458                 opts_list = qemu_find_opts(key);
3459                 if (!opts_list || opts_list->desc->name) {
3460                     goto bad_type;
3461                 }
3462                 while (qemu_isspace(*p)) {
3463                     p++;
3464                 }
3465                 if (!*p)
3466                     break;
3467                 if (get_str(buf, sizeof(buf), &p) < 0) {
3468                     goto fail;
3469                 }
3470                 opts = qemu_opts_parse(opts_list, buf, 1);
3471                 if (!opts) {
3472                     goto fail;
3473                 }
3474                 qemu_opts_to_qdict(opts, qdict);
3475                 qemu_opts_del(opts);
3476             }
3477             break;
3478         case '/':
3479             {
3480                 int count, format, size;
3481
3482                 while (qemu_isspace(*p))
3483                     p++;
3484                 if (*p == '/') {
3485                     /* format found */
3486                     p++;
3487                     count = 1;
3488                     if (qemu_isdigit(*p)) {
3489                         count = 0;
3490                         while (qemu_isdigit(*p)) {
3491                             count = count * 10 + (*p - '0');
3492                             p++;
3493                         }
3494                     }
3495                     size = -1;
3496                     format = -1;
3497                     for(;;) {
3498                         switch(*p) {
3499                         case 'o':
3500                         case 'd':
3501                         case 'u':
3502                         case 'x':
3503                         case 'i':
3504                         case 'c':
3505                             format = *p++;
3506                             break;
3507                         case 'b':
3508                             size = 1;
3509                             p++;
3510                             break;
3511                         case 'h':
3512                             size = 2;
3513                             p++;
3514                             break;
3515                         case 'w':
3516                             size = 4;
3517                             p++;
3518                             break;
3519                         case 'g':
3520                         case 'L':
3521                             size = 8;
3522                             p++;
3523                             break;
3524                         default:
3525                             goto next;
3526                         }
3527                     }
3528                 next:
3529                     if (*p != '\0' && !qemu_isspace(*p)) {
3530                         monitor_printf(mon, "invalid char in format: '%c'\n",
3531                                        *p);
3532                         goto fail;
3533                     }
3534                     if (format < 0)
3535                         format = default_fmt_format;
3536                     if (format != 'i') {
3537                         /* for 'i', not specifying a size gives -1 as size */
3538                         if (size < 0)
3539                             size = default_fmt_size;
3540                         default_fmt_size = size;
3541                     }
3542                     default_fmt_format = format;
3543                 } else {
3544                     count = 1;
3545                     format = default_fmt_format;
3546                     if (format != 'i') {
3547                         size = default_fmt_size;
3548                     } else {
3549                         size = -1;
3550                     }
3551                 }
3552                 qdict_put(qdict, "count", qint_from_int(count));
3553                 qdict_put(qdict, "format", qint_from_int(format));
3554                 qdict_put(qdict, "size", qint_from_int(size));
3555             }
3556             break;
3557         case 'i':
3558         case 'l':
3559         case 'M':
3560             {
3561                 int64_t val;
3562
3563                 while (qemu_isspace(*p))
3564                     p++;
3565                 if (*typestr == '?' || *typestr == '.') {
3566                     if (*typestr == '?') {
3567                         if (*p == '\0') {
3568                             typestr++;
3569                             break;
3570                         }
3571                     } else {
3572                         if (*p == '.') {
3573                             p++;
3574                             while (qemu_isspace(*p))
3575                                 p++;
3576                         } else {
3577                             typestr++;
3578                             break;
3579                         }
3580                     }
3581                     typestr++;
3582                 }
3583                 if (get_expr(mon, &val, &p))
3584                     goto fail;
3585                 /* Check if 'i' is greater than 32-bit */
3586                 if ((c == 'i') && ((val >> 32) & 0xffffffff)) {
3587                     monitor_printf(mon, "\'%s\' has failed: ", cmdname);
3588                     monitor_printf(mon, "integer is for 32-bit values\n");
3589                     goto fail;
3590                 } else if (c == 'M') {
3591                     val <<= 20;
3592                 }
3593                 qdict_put(qdict, key, qint_from_int(val));
3594             }
3595             break;
3596         case 'f':
3597         case 'T':
3598             {
3599                 double val;
3600
3601                 while (qemu_isspace(*p))
3602                     p++;
3603                 if (*typestr == '?') {
3604                     typestr++;
3605                     if (*p == '\0') {
3606                         break;
3607                     }
3608                 }
3609                 if (get_double(mon, &val, &p) < 0) {
3610                     goto fail;
3611                 }
3612                 if (c == 'f' && *p) {
3613                     switch (*p) {
3614                     case 'K': case 'k':
3615                         val *= 1 << 10; p++; break;
3616                     case 'M': case 'm':
3617                         val *= 1 << 20; p++; break;
3618                     case 'G': case 'g':
3619                         val *= 1 << 30; p++; break;
3620                     }
3621                 }
3622                 if (c == 'T' && p[0] && p[1] == 's') {
3623                     switch (*p) {
3624                     case 'm':
3625                         val /= 1e3; p += 2; break;
3626                     case 'u':
3627                         val /= 1e6; p += 2; break;
3628                     case 'n':
3629                         val /= 1e9; p += 2; break;
3630                     }
3631                 }
3632                 if (*p && !qemu_isspace(*p)) {
3633                     monitor_printf(mon, "Unknown unit suffix\n");
3634                     goto fail;
3635                 }
3636                 qdict_put(qdict, key, qfloat_from_double(val));
3637             }
3638             break;
3639         case 'b':
3640             {
3641                 const char *beg;
3642                 int val;
3643
3644                 while (qemu_isspace(*p)) {
3645                     p++;
3646                 }
3647                 beg = p;
3648                 while (qemu_isgraph(*p)) {
3649                     p++;
3650                 }
3651                 if (p - beg == 2 && !memcmp(beg, "on", p - beg)) {
3652                     val = 1;
3653                 } else if (p - beg == 3 && !memcmp(beg, "off", p - beg)) {
3654                     val = 0;
3655                 } else {
3656                     monitor_printf(mon, "Expected 'on' or 'off'\n");
3657                     goto fail;
3658                 }
3659                 qdict_put(qdict, key, qbool_from_int(val));
3660             }
3661             break;
3662         case '-':
3663             {
3664                 const char *tmp = p;
3665                 int has_option, skip_key = 0;
3666                 /* option */
3667
3668                 c = *typestr++;
3669                 if (c == '\0')
3670                     goto bad_type;
3671                 while (qemu_isspace(*p))
3672                     p++;
3673                 has_option = 0;
3674                 if (*p == '-') {
3675                     p++;
3676                     if(c != *p) {
3677                         if(!is_valid_option(p, typestr)) {
3678
3679                             monitor_printf(mon, "%s: unsupported option -%c\n",
3680                                            cmdname, *p);
3681                             goto fail;
3682                         } else {
3683                             skip_key = 1;
3684                         }
3685                     }
3686                     if(skip_key) {
3687                         p = tmp;
3688                     } else {
3689                         p++;
3690                         has_option = 1;
3691                     }
3692                 }
3693                 qdict_put(qdict, key, qint_from_int(has_option));
3694             }
3695             break;
3696         default:
3697         bad_type:
3698             monitor_printf(mon, "%s: unknown type '%c'\n", cmdname, c);
3699             goto fail;
3700         }
3701         qemu_free(key);
3702         key = NULL;
3703     }
3704     /* check that all arguments were parsed */
3705     while (qemu_isspace(*p))
3706         p++;
3707     if (*p != '\0') {
3708         monitor_printf(mon, "%s: extraneous characters at the end of line\n",
3709                        cmdname);
3710         goto fail;
3711     }
3712
3713     return cmd;
3714
3715 fail:
3716     qemu_free(key);
3717     return NULL;
3718 }
3719
3720 void monitor_set_error(Monitor *mon, QError *qerror)
3721 {
3722     /* report only the first error */
3723     if (!mon->error) {
3724         mon->error = qerror;
3725     } else {
3726         MON_DEBUG("Additional error report at %s:%d\n",
3727                   qerror->file, qerror->linenr);
3728         QDECREF(qerror);
3729     }
3730 }
3731
3732 static int is_async_return(const QObject *data)
3733 {
3734     if (data && qobject_type(data) == QTYPE_QDICT) {
3735         return qdict_haskey(qobject_to_qdict(data), "__mon_async");
3736     }
3737
3738     return 0;
3739 }
3740
3741 static void handler_audit(Monitor *mon, const mon_cmd_t *cmd, int ret)
3742 {
3743     if (monitor_ctrl_mode(mon)) {
3744         if (ret && !monitor_has_error(mon)) {
3745             /*
3746              * If it returns failure, it must have passed on error.
3747              *
3748              * Action: Report an internal error to the client if in QMP.
3749              */
3750             qerror_report(QERR_UNDEFINED_ERROR);
3751             MON_DEBUG("command '%s' returned failure but did not pass an error\n",
3752                       cmd->name);
3753         }
3754
3755 #ifdef CONFIG_DEBUG_MONITOR
3756         if (!ret && monitor_has_error(mon)) {
3757             /*
3758              * If it returns success, it must not have passed an error.
3759              *
3760              * Action: Report the passed error to the client.
3761              */
3762             MON_DEBUG("command '%s' returned success but passed an error\n",
3763                       cmd->name);
3764         }
3765
3766         if (mon_print_count_get(mon) > 0 && strcmp(cmd->name, "info") != 0) {
3767             /*
3768              * Handlers should not call Monitor print functions.
3769              *
3770              * Action: Ignore them in QMP.
3771              *
3772              * (XXX: we don't check any 'info' or 'query' command here
3773              * because the user print function _is_ called by do_info(), hence
3774              * we will trigger this check. This problem will go away when we
3775              * make 'query' commands real and kill do_info())
3776              */
3777             MON_DEBUG("command '%s' called print functions %d time(s)\n",
3778                       cmd->name, mon_print_count_get(mon));
3779         }
3780 #endif
3781     } else {
3782         assert(!monitor_has_error(mon));
3783         QDECREF(mon->error);
3784         mon->error = NULL;
3785     }
3786 }
3787
3788 static void monitor_call_handler(Monitor *mon, const mon_cmd_t *cmd,
3789                                  const QDict *params)
3790 {
3791     int ret;
3792     QObject *data = NULL;
3793
3794     mon_print_count_init(mon);
3795
3796     ret = cmd->mhandler.cmd_new(mon, params, &data);
3797     handler_audit(mon, cmd, ret);
3798
3799     if (is_async_return(data)) {
3800         /*
3801          * Asynchronous commands have no initial return data but they can
3802          * generate errors.  Data is returned via the async completion handler.
3803          */
3804         if (monitor_ctrl_mode(mon) && monitor_has_error(mon)) {
3805             monitor_protocol_emitter(mon, NULL);
3806         }
3807     } else if (monitor_ctrl_mode(mon)) {
3808         /* Monitor Protocol */
3809         monitor_protocol_emitter(mon, data);
3810     } else {
3811         /* User Protocol */
3812          if (data)
3813             cmd->user_print(mon, data);
3814     }
3815
3816     qobject_decref(data);
3817 }
3818
3819 static void handle_user_command(Monitor *mon, const char *cmdline)
3820 {
3821     QDict *qdict;
3822     const mon_cmd_t *cmd;
3823
3824     qdict = qdict_new();
3825
3826     cmd = monitor_parse_command(mon, cmdline, qdict);
3827     if (!cmd)
3828         goto out;
3829
3830     if (monitor_handler_is_async(cmd)) {
3831         user_async_cmd_handler(mon, cmd, qdict);
3832     } else if (monitor_handler_ported(cmd)) {
3833         monitor_call_handler(mon, cmd, qdict);
3834     } else {
3835         cmd->mhandler.cmd(mon, qdict);
3836     }
3837
3838 out:
3839     QDECREF(qdict);
3840 }
3841
3842 static void cmd_completion(const char *name, const char *list)
3843 {
3844     const char *p, *pstart;
3845     char cmd[128];
3846     int len;
3847
3848     p = list;
3849     for(;;) {
3850         pstart = p;
3851         p = strchr(p, '|');
3852         if (!p)
3853             p = pstart + strlen(pstart);
3854         len = p - pstart;
3855         if (len > sizeof(cmd) - 2)
3856             len = sizeof(cmd) - 2;
3857         memcpy(cmd, pstart, len);
3858         cmd[len] = '\0';
3859         if (name[0] == '\0' || !strncmp(name, cmd, strlen(name))) {
3860             readline_add_completion(cur_mon->rs, cmd);
3861         }
3862         if (*p == '\0')
3863             break;
3864         p++;
3865     }
3866 }
3867
3868 static void file_completion(const char *input)
3869 {
3870     DIR *ffs;
3871     struct dirent *d;
3872     char path[1024];
3873     char file[1024], file_prefix[1024];
3874     int input_path_len;
3875     const char *p;
3876
3877     p = strrchr(input, '/');
3878     if (!p) {
3879         input_path_len = 0;
3880         pstrcpy(file_prefix, sizeof(file_prefix), input);
3881         pstrcpy(path, sizeof(path), ".");
3882     } else {
3883         input_path_len = p - input + 1;
3884         memcpy(path, input, input_path_len);
3885         if (input_path_len > sizeof(path) - 1)
3886             input_path_len = sizeof(path) - 1;
3887         path[input_path_len] = '\0';
3888         pstrcpy(file_prefix, sizeof(file_prefix), p + 1);
3889     }
3890 #ifdef DEBUG_COMPLETION
3891     monitor_printf(cur_mon, "input='%s' path='%s' prefix='%s'\n",
3892                    input, path, file_prefix);
3893 #endif
3894     ffs = opendir(path);
3895     if (!ffs)
3896         return;
3897     for(;;) {
3898         struct stat sb;
3899         d = readdir(ffs);
3900         if (!d)
3901             break;
3902         if (strstart(d->d_name, file_prefix, NULL)) {
3903             memcpy(file, input, input_path_len);
3904             if (input_path_len < sizeof(file))
3905                 pstrcpy(file + input_path_len, sizeof(file) - input_path_len,
3906                         d->d_name);
3907             /* stat the file to find out if it's a directory.
3908              * In that case add a slash to speed up typing long paths
3909              */
3910             stat(file, &sb);
3911             if(S_ISDIR(sb.st_mode))
3912                 pstrcat(file, sizeof(file), "/");
3913             readline_add_completion(cur_mon->rs, file);
3914         }
3915     }
3916     closedir(ffs);
3917 }
3918
3919 static void block_completion_it(void *opaque, BlockDriverState *bs)
3920 {
3921     const char *name = bdrv_get_device_name(bs);
3922     const char *input = opaque;
3923
3924     if (input[0] == '\0' ||
3925         !strncmp(name, (char *)input, strlen(input))) {
3926         readline_add_completion(cur_mon->rs, name);
3927     }
3928 }
3929
3930 /* NOTE: this parser is an approximate form of the real command parser */
3931 static void parse_cmdline(const char *cmdline,
3932                          int *pnb_args, char **args)
3933 {
3934     const char *p;
3935     int nb_args, ret;
3936     char buf[1024];
3937
3938     p = cmdline;
3939     nb_args = 0;
3940     for(;;) {
3941         while (qemu_isspace(*p))
3942             p++;
3943         if (*p == '\0')
3944             break;
3945         if (nb_args >= MAX_ARGS)
3946             break;
3947         ret = get_str(buf, sizeof(buf), &p);
3948         args[nb_args] = qemu_strdup(buf);
3949         nb_args++;
3950         if (ret < 0)
3951             break;
3952     }
3953     *pnb_args = nb_args;
3954 }
3955
3956 static const char *next_arg_type(const char *typestr)
3957 {
3958     const char *p = strchr(typestr, ':');
3959     return (p != NULL ? ++p : typestr);
3960 }
3961
3962 static void monitor_find_completion(const char *cmdline)
3963 {
3964     const char *cmdname;
3965     char *args[MAX_ARGS];
3966     int nb_args, i, len;
3967     const char *ptype, *str;
3968     const mon_cmd_t *cmd;
3969     const KeyDef *key;
3970
3971     parse_cmdline(cmdline, &nb_args, args);
3972 #ifdef DEBUG_COMPLETION
3973     for(i = 0; i < nb_args; i++) {
3974         monitor_printf(cur_mon, "arg%d = '%s'\n", i, (char *)args[i]);
3975     }
3976 #endif
3977
3978     /* if the line ends with a space, it means we want to complete the
3979        next arg */
3980     len = strlen(cmdline);
3981     if (len > 0 && qemu_isspace(cmdline[len - 1])) {
3982         if (nb_args >= MAX_ARGS)
3983             return;
3984         args[nb_args++] = qemu_strdup("");
3985     }
3986     if (nb_args <= 1) {
3987         /* command completion */
3988         if (nb_args == 0)
3989             cmdname = "";
3990         else
3991             cmdname = args[0];
3992         readline_set_completion_index(cur_mon->rs, strlen(cmdname));
3993         for(cmd = mon_cmds; cmd->name != NULL; cmd++) {
3994             cmd_completion(cmdname, cmd->name);
3995         }
3996     } else {
3997         /* find the command */
3998         for(cmd = mon_cmds; cmd->name != NULL; cmd++) {
3999             if (compare_cmd(args[0], cmd->name))
4000                 goto found;
4001         }
4002         return;
4003     found:
4004         ptype = next_arg_type(cmd->args_type);
4005         for(i = 0; i < nb_args - 2; i++) {
4006             if (*ptype != '\0') {
4007                 ptype = next_arg_type(ptype);
4008                 while (*ptype == '?')
4009                     ptype = next_arg_type(ptype);
4010             }
4011         }
4012         str = args[nb_args - 1];
4013         if (*ptype == '-' && ptype[1] != '\0') {
4014             ptype += 2;
4015         }
4016         switch(*ptype) {
4017         case 'F':
4018             /* file completion */
4019             readline_set_completion_index(cur_mon->rs, strlen(str));
4020             file_completion(str);
4021             break;
4022         case 'B':
4023             /* block device name completion */
4024             readline_set_completion_index(cur_mon->rs, strlen(str));
4025             bdrv_iterate(block_completion_it, (void *)str);
4026             break;
4027         case 's':
4028             /* XXX: more generic ? */
4029             if (!strcmp(cmd->name, "info")) {
4030                 readline_set_completion_index(cur_mon->rs, strlen(str));
4031                 for(cmd = info_cmds; cmd->name != NULL; cmd++) {
4032                     cmd_completion(str, cmd->name);
4033                 }
4034             } else if (!strcmp(cmd->name, "sendkey")) {
4035                 char *sep = strrchr(str, '-');
4036                 if (sep)
4037                     str = sep + 1;
4038                 readline_set_completion_index(cur_mon->rs, strlen(str));
4039                 for(key = key_defs; key->name != NULL; key++) {
4040                     cmd_completion(str, key->name);
4041                 }
4042             } else if (!strcmp(cmd->name, "help|?")) {
4043                 readline_set_completion_index(cur_mon->rs, strlen(str));
4044                 for (cmd = mon_cmds; cmd->name != NULL; cmd++) {
4045                     cmd_completion(str, cmd->name);
4046                 }
4047             }
4048             break;
4049         default:
4050             break;
4051         }
4052     }
4053     for(i = 0; i < nb_args; i++)
4054         qemu_free(args[i]);
4055 }
4056
4057 static int monitor_can_read(void *opaque)
4058 {
4059     Monitor *mon = opaque;
4060
4061     return (mon->suspend_cnt == 0) ? 1 : 0;
4062 }
4063
4064 typedef struct CmdArgs {
4065     QString *name;
4066     int type;
4067     int flag;
4068     int optional;
4069 } CmdArgs;
4070
4071 static int check_opt(const CmdArgs *cmd_args, const char *name, QDict *args)
4072 {
4073     if (!cmd_args->optional) {
4074         qerror_report(QERR_MISSING_PARAMETER, name);
4075         return -1;
4076     }
4077
4078     if (cmd_args->type == '-') {
4079         /* handlers expect a value, they need to be changed */
4080         qdict_put(args, name, qint_from_int(0));
4081     }
4082
4083     return 0;
4084 }
4085
4086 static int check_arg(const CmdArgs *cmd_args, QDict *args)
4087 {
4088     QObject *value;
4089     const char *name;
4090
4091     name = qstring_get_str(cmd_args->name);
4092
4093     if (!args) {
4094         return check_opt(cmd_args, name, args);
4095     }
4096
4097     value = qdict_get(args, name);
4098     if (!value) {
4099         return check_opt(cmd_args, name, args);
4100     }
4101
4102     switch (cmd_args->type) {
4103         case 'F':
4104         case 'B':
4105         case 's':
4106             if (qobject_type(value) != QTYPE_QSTRING) {
4107                 qerror_report(QERR_INVALID_PARAMETER_TYPE, name, "string");
4108                 return -1;
4109             }
4110             break;
4111         case '/': {
4112             int i;
4113             const char *keys[] = { "count", "format", "size", NULL };
4114
4115             for (i = 0; keys[i]; i++) {
4116                 QObject *obj = qdict_get(args, keys[i]);
4117                 if (!obj) {
4118                     qerror_report(QERR_MISSING_PARAMETER, name);
4119                     return -1;
4120                 }
4121                 if (qobject_type(obj) != QTYPE_QINT) {
4122                     qerror_report(QERR_INVALID_PARAMETER_TYPE, name, "int");
4123                     return -1;
4124                 }
4125             }
4126             break;
4127         }
4128         case 'i':
4129         case 'l':
4130         case 'M':
4131             if (qobject_type(value) != QTYPE_QINT) {
4132                 qerror_report(QERR_INVALID_PARAMETER_TYPE, name, "int");
4133                 return -1;
4134             }
4135             break;
4136         case 'f':
4137         case 'T':
4138             if (qobject_type(value) != QTYPE_QINT && qobject_type(value) != QTYPE_QFLOAT) {
4139                 qerror_report(QERR_INVALID_PARAMETER_TYPE, name, "number");
4140                 return -1;
4141             }
4142             break;
4143         case 'b':
4144             if (qobject_type(value) != QTYPE_QBOOL) {
4145                 qerror_report(QERR_INVALID_PARAMETER_TYPE, name, "bool");
4146                 return -1;
4147             }
4148             break;
4149         case '-':
4150             if (qobject_type(value) != QTYPE_QINT &&
4151                 qobject_type(value) != QTYPE_QBOOL) {
4152                 qerror_report(QERR_INVALID_PARAMETER_TYPE, name, "bool");
4153                 return -1;
4154             }
4155             if (qobject_type(value) == QTYPE_QBOOL) {
4156                 /* handlers expect a QInt, they need to be changed */
4157                 qdict_put(args, name,
4158                          qint_from_int(qbool_get_int(qobject_to_qbool(value))));
4159             }
4160             break;
4161         case 'O':
4162         default:
4163             /* impossible */
4164             abort();
4165     }
4166
4167     return 0;
4168 }
4169
4170 static void cmd_args_init(CmdArgs *cmd_args)
4171 {
4172     cmd_args->name = qstring_new();
4173     cmd_args->type = cmd_args->flag = cmd_args->optional = 0;
4174 }
4175
4176 static int check_opts(QemuOptsList *opts_list, QDict *args)
4177 {
4178     assert(!opts_list->desc->name);
4179     return 0;
4180 }
4181
4182 /*
4183  * This is not trivial, we have to parse Monitor command's argument
4184  * type syntax to be able to check the arguments provided by clients.
4185  *
4186  * In the near future we will be using an array for that and will be
4187  * able to drop all this parsing...
4188  */
4189 static int monitor_check_qmp_args(const mon_cmd_t *cmd, QDict *args)
4190 {
4191     int err;
4192     const char *p;
4193     CmdArgs cmd_args;
4194     QemuOptsList *opts_list;
4195
4196     if (cmd->args_type == NULL) {
4197         return (qdict_size(args) == 0 ? 0 : -1);
4198     }
4199
4200     err = 0;
4201     cmd_args_init(&cmd_args);
4202     opts_list = NULL;
4203
4204     for (p = cmd->args_type;; p++) {
4205         if (*p == ':') {
4206             cmd_args.type = *++p;
4207             p++;
4208             if (cmd_args.type == '-') {
4209                 cmd_args.flag = *p++;
4210                 cmd_args.optional = 1;
4211             } else if (cmd_args.type == 'O') {
4212                 opts_list = qemu_find_opts(qstring_get_str(cmd_args.name));
4213                 assert(opts_list);
4214             } else if (*p == '?') {
4215                 cmd_args.optional = 1;
4216                 p++;
4217             }
4218
4219             assert(*p == ',' || *p == '\0');
4220             if (opts_list) {
4221                 err = check_opts(opts_list, args);
4222                 opts_list = NULL;
4223             } else {
4224                 err = check_arg(&cmd_args, args);
4225                 QDECREF(cmd_args.name);
4226                 cmd_args_init(&cmd_args);
4227             }
4228
4229             if (err < 0) {
4230                 break;
4231             }
4232         } else {
4233             qstring_append_chr(cmd_args.name, *p);
4234         }
4235
4236         if (*p == '\0') {
4237             break;
4238         }
4239     }
4240
4241     QDECREF(cmd_args.name);
4242     return err;
4243 }
4244
4245 static int invalid_qmp_mode(const Monitor *mon, const char *cmd_name)
4246 {
4247     int is_cap = compare_cmd(cmd_name, "qmp_capabilities");
4248     return (qmp_cmd_mode(mon) ? is_cap : !is_cap);
4249 }
4250
4251 static void handle_qmp_command(JSONMessageParser *parser, QList *tokens)
4252 {
4253     int err;
4254     QObject *obj;
4255     QDict *input, *args;
4256     const mon_cmd_t *cmd;
4257     Monitor *mon = cur_mon;
4258     const char *cmd_name, *info_item;
4259
4260     args = NULL;
4261
4262     obj = json_parser_parse(tokens, NULL);
4263     if (!obj) {
4264         // FIXME: should be triggered in json_parser_parse()
4265         qerror_report(QERR_JSON_PARSING);
4266         goto err_out;
4267     } else if (qobject_type(obj) != QTYPE_QDICT) {
4268         qerror_report(QERR_QMP_BAD_INPUT_OBJECT, "object");
4269         qobject_decref(obj);
4270         goto err_out;
4271     }
4272
4273     input = qobject_to_qdict(obj);
4274
4275     mon->mc->id = qdict_get(input, "id");
4276     qobject_incref(mon->mc->id);
4277
4278     obj = qdict_get(input, "execute");
4279     if (!obj) {
4280         qerror_report(QERR_QMP_BAD_INPUT_OBJECT, "execute");
4281         goto err_input;
4282     } else if (qobject_type(obj) != QTYPE_QSTRING) {
4283         qerror_report(QERR_QMP_BAD_INPUT_OBJECT_MEMBER, "execute", "string");
4284         goto err_input;
4285     }
4286
4287     cmd_name = qstring_get_str(qobject_to_qstring(obj));
4288
4289     if (invalid_qmp_mode(mon, cmd_name)) {
4290         qerror_report(QERR_COMMAND_NOT_FOUND, cmd_name);
4291         goto err_input;
4292     }
4293
4294     /*
4295      * XXX: We need this special case until we get info handlers
4296      * converted into 'query-' commands
4297      */
4298     if (compare_cmd(cmd_name, "info")) {
4299         qerror_report(QERR_COMMAND_NOT_FOUND, cmd_name);
4300         goto err_input;
4301     } else if (strstart(cmd_name, "query-", &info_item)) {
4302         cmd = monitor_find_command("info");
4303         qdict_put_obj(input, "arguments",
4304                       qobject_from_jsonf("{ 'item': %s }", info_item));
4305     } else {
4306         cmd = monitor_find_command(cmd_name);
4307         if (!cmd || !monitor_handler_ported(cmd)) {
4308             qerror_report(QERR_COMMAND_NOT_FOUND, cmd_name);
4309             goto err_input;
4310         }
4311     }
4312
4313     obj = qdict_get(input, "arguments");
4314     if (!obj) {
4315         args = qdict_new();
4316     } else if (qobject_type(obj) != QTYPE_QDICT) {
4317         qerror_report(QERR_QMP_BAD_INPUT_OBJECT_MEMBER, "arguments", "object");
4318         goto err_input;
4319     } else {
4320         args = qobject_to_qdict(obj);
4321         QINCREF(args);
4322     }
4323
4324     QDECREF(input);
4325
4326     err = monitor_check_qmp_args(cmd, args);
4327     if (err < 0) {
4328         goto err_out;
4329     }
4330
4331     if (monitor_handler_is_async(cmd)) {
4332         qmp_async_cmd_handler(mon, cmd, args);
4333     } else {
4334         monitor_call_handler(mon, cmd, args);
4335     }
4336     goto out;
4337
4338 err_input:
4339     QDECREF(input);
4340 err_out:
4341     monitor_protocol_emitter(mon, NULL);
4342 out:
4343     QDECREF(args);
4344 }
4345
4346 /**
4347  * monitor_control_read(): Read and handle QMP input
4348  */
4349 static void monitor_control_read(void *opaque, const uint8_t *buf, int size)
4350 {
4351     Monitor *old_mon = cur_mon;
4352
4353     cur_mon = opaque;
4354
4355     json_message_parser_feed(&cur_mon->mc->parser, (const char *) buf, size);
4356
4357     cur_mon = old_mon;
4358 }
4359
4360 static void monitor_read(void *opaque, const uint8_t *buf, int size)
4361 {
4362     Monitor *old_mon = cur_mon;
4363     int i;
4364
4365     cur_mon = opaque;
4366
4367     if (cur_mon->rs) {
4368         for (i = 0; i < size; i++)
4369             readline_handle_byte(cur_mon->rs, buf[i]);
4370     } else {
4371         if (size == 0 || buf[size - 1] != 0)
4372             monitor_printf(cur_mon, "corrupted command\n");
4373         else
4374             handle_user_command(cur_mon, (char *)buf);
4375     }
4376
4377     cur_mon = old_mon;
4378 }
4379
4380 static void monitor_command_cb(Monitor *mon, const char *cmdline, void *opaque)
4381 {
4382     monitor_suspend(mon);
4383     handle_user_command(mon, cmdline);
4384     monitor_resume(mon);
4385 }
4386
4387 int monitor_suspend(Monitor *mon)
4388 {
4389     if (!mon->rs)
4390         return -ENOTTY;
4391     mon->suspend_cnt++;
4392     return 0;
4393 }
4394
4395 void monitor_resume(Monitor *mon)
4396 {
4397     if (!mon->rs)
4398         return;
4399     if (--mon->suspend_cnt == 0)
4400         readline_show_prompt(mon->rs);
4401 }
4402
4403 static QObject *get_qmp_greeting(void)
4404 {
4405     QObject *ver;
4406
4407     do_info_version(NULL, &ver);
4408     return qobject_from_jsonf("{'QMP':{'version': %p,'capabilities': []}}",ver);
4409 }
4410
4411 /**
4412  * monitor_control_event(): Print QMP gretting
4413  */
4414 static void monitor_control_event(void *opaque, int event)
4415 {
4416     QObject *data;
4417     Monitor *mon = opaque;
4418
4419     switch (event) {
4420     case CHR_EVENT_OPENED:
4421         mon->mc->command_mode = 0;
4422         json_message_parser_init(&mon->mc->parser, handle_qmp_command);
4423         data = get_qmp_greeting();
4424         monitor_json_emitter(mon, data);
4425         qobject_decref(data);
4426         break;
4427     case CHR_EVENT_CLOSED:
4428         json_message_parser_destroy(&mon->mc->parser);
4429         break;
4430     }
4431 }
4432
4433 static void monitor_event(void *opaque, int event)
4434 {
4435     Monitor *mon = opaque;
4436
4437     switch (event) {
4438     case CHR_EVENT_MUX_IN:
4439         mon->mux_out = 0;
4440         if (mon->reset_seen) {
4441             readline_restart(mon->rs);
4442             monitor_resume(mon);
4443             monitor_flush(mon);
4444         } else {
4445             mon->suspend_cnt = 0;
4446         }
4447         break;
4448
4449     case CHR_EVENT_MUX_OUT:
4450         if (mon->reset_seen) {
4451             if (mon->suspend_cnt == 0) {
4452                 monitor_printf(mon, "\n");
4453             }
4454             monitor_flush(mon);
4455             monitor_suspend(mon);
4456         } else {
4457             mon->suspend_cnt++;
4458         }
4459         mon->mux_out = 1;
4460         break;
4461
4462     case CHR_EVENT_OPENED:
4463         monitor_printf(mon, "QEMU %s monitor - type 'help' for more "
4464                        "information\n", QEMU_VERSION);
4465         if (!mon->mux_out) {
4466             readline_show_prompt(mon->rs);
4467         }
4468         mon->reset_seen = 1;
4469         break;
4470     }
4471 }
4472
4473
4474 /*
4475  * Local variables:
4476  *  c-indent-level: 4
4477  *  c-basic-offset: 4
4478  *  tab-width: 8
4479  * End:
4480  */
4481
4482 void monitor_init(CharDriverState *chr, int flags)
4483 {
4484     static int is_first_init = 1;
4485     Monitor *mon;
4486
4487     if (is_first_init) {
4488         key_timer = qemu_new_timer(vm_clock, release_keys, NULL);
4489         is_first_init = 0;
4490     }
4491
4492     mon = qemu_mallocz(sizeof(*mon));
4493
4494     mon->chr = chr;
4495     mon->flags = flags;
4496     if (flags & MONITOR_USE_READLINE) {
4497         mon->rs = readline_init(mon, monitor_find_completion);
4498         monitor_read_command(mon, 0);
4499     }
4500
4501     if (monitor_ctrl_mode(mon)) {
4502         mon->mc = qemu_mallocz(sizeof(MonitorControl));
4503         /* Control mode requires special handlers */
4504         qemu_chr_add_handlers(chr, monitor_can_read, monitor_control_read,
4505                               monitor_control_event, mon);
4506     } else {
4507         qemu_chr_add_handlers(chr, monitor_can_read, monitor_read,
4508                               monitor_event, mon);
4509     }
4510
4511     QLIST_INSERT_HEAD(&mon_list, mon, entry);
4512     if (!default_mon || (flags & MONITOR_IS_DEFAULT))
4513         default_mon = mon;
4514 }
4515
4516 static void bdrv_password_cb(Monitor *mon, const char *password, void *opaque)
4517 {
4518     BlockDriverState *bs = opaque;
4519     int ret = 0;
4520
4521     if (bdrv_set_key(bs, password) != 0) {
4522         monitor_printf(mon, "invalid password\n");
4523         ret = -EPERM;
4524     }
4525     if (mon->password_completion_cb)
4526         mon->password_completion_cb(mon->password_opaque, ret);
4527
4528     monitor_read_command(mon, 1);
4529 }
4530
4531 int monitor_read_bdrv_key_start(Monitor *mon, BlockDriverState *bs,
4532                                 BlockDriverCompletionFunc *completion_cb,
4533                                 void *opaque)
4534 {
4535     int err;
4536
4537     if (!bdrv_key_required(bs)) {
4538         if (completion_cb)
4539             completion_cb(opaque, 0);
4540         return 0;
4541     }
4542
4543     if (monitor_ctrl_mode(mon)) {
4544         qerror_report(QERR_DEVICE_ENCRYPTED, bdrv_get_device_name(bs));
4545         return -1;
4546     }
4547
4548     monitor_printf(mon, "%s (%s) is encrypted.\n", bdrv_get_device_name(bs),
4549                    bdrv_get_encrypted_filename(bs));
4550
4551     mon->password_completion_cb = completion_cb;
4552     mon->password_opaque = opaque;
4553
4554     err = monitor_read_password(mon, bdrv_password_cb, bs);
4555
4556     if (err && completion_cb)
4557         completion_cb(opaque, err);
4558
4559     return err;
4560 }