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 "blockdev.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 #include "exec-all.h"
  59 #ifdef CONFIG_SIMPLE_TRACE
  60 #include "trace.h"
  61 #endif
  62
  63 //#define DEBUG
  64 //#define DEBUG_COMPLETION
  65
  66 /*
  67  * Supported types:
  68  *
  69  * 'F'          filename
  70  * 'B'          block device name
  71  * 's'          string (accept optional quote)
  72  * 'O'          option string of the form NAME=VALUE,...
  73  *              parsed according to QemuOptsList given by its name
  74  *              Example: 'device:O' uses qemu_device_opts.
  75  *              Restriction: only lists with empty desc are supported
  76  *              TODO lift the restriction
  77  * 'i'          32 bit integer
  78  * 'l'          target long (32 or 64 bit)
  79  * 'M'          just like 'l', except in user mode the value is
  80  *              multiplied by 2^20 (think Mebibyte)
  81  * 'o'          octets (aka bytes)
  82  *              user mode accepts an optional T, t, G, g, M, m, K, k
  83  *              suffix, which multiplies the value by 2^40 for
  84  *              suffixes T and t, 2^30 for suffixes G and g, 2^20 for
  85  *              M and m, 2^10 for K and k
  86  * 'T'          double
  87  *              user mode accepts an optional ms, us, ns suffix,
  88  *              which divides the value by 1e3, 1e6, 1e9, respectively
  89  * '/'          optional gdb-like print format (like "/10x")
  90  *
  91  * '?'          optional type (for all types, except '/')
  92  * '.'          other form of optional type (for 'i' and 'l')
  93  * 'b'          boolean
  94  *              user mode accepts "on" or "off"
  95  * '-'          optional parameter (eg. '-f')
  96  *
  97  */
  98
  99 typedef struct MonitorCompletionData MonitorCompletionData;
 100 struct MonitorCompletionData {
 101     Monitor *mon;
 102     void (*user_print)(Monitor *mon, const QObject *data);
 103 };
 104
 105 typedef struct mon_cmd_t {
 106     const char *name;
 107     const char *args_type;
 108     const char *params;
 109     const char *help;
 110     void (*user_print)(Monitor *mon, const QObject *data);
 111     union {
 112         void (*info)(Monitor *mon);
 113         void (*info_new)(Monitor *mon, QObject **ret_data);
 114         int  (*info_async)(Monitor *mon, MonitorCompletion *cb, void *opaque);
 115         void (*cmd)(Monitor *mon, const QDict *qdict);
 116         int  (*cmd_new)(Monitor *mon, const QDict *params, QObject **ret_data);
 117         int  (*cmd_async)(Monitor *mon, const QDict *params,
 118                           MonitorCompletion *cb, void *opaque);
 119     } mhandler;
 120     int flags;
 121 } mon_cmd_t;
 122
 123 /* file descriptors passed via SCM_RIGHTS */
 124 typedef struct mon_fd_t mon_fd_t;
 125 struct mon_fd_t {
 126     char *name;
 127     int fd;
 128     QLIST_ENTRY(mon_fd_t) next;
 129 };
 130
 131 typedef struct MonitorControl {
 132     QObject *id;
 133     JSONMessageParser parser;
 134     int command_mode;
 135 } MonitorControl;
 136
 137 struct Monitor {
 138     CharDriverState *chr;
 139     int mux_out;
 140     int reset_seen;
 141     int flags;
 142     int suspend_cnt;
 143     uint8_t outbuf[1024];
 144     int outbuf_index;
 145     ReadLineState *rs;
 146     MonitorControl *mc;
 147     CPUState *mon_cpu;
 148     BlockDriverCompletionFunc *password_completion_cb;
 149     void *password_opaque;
 150 #ifdef CONFIG_DEBUG_MONITOR
 151     int print_calls_nr;
 152 #endif
 153     QError *error;
 154     QLIST_HEAD(,mon_fd_t) fds;
 155     QLIST_ENTRY(Monitor) entry;
 156 };
 157
 158 #ifdef CONFIG_DEBUG_MONITOR
 159 #define MON_DEBUG(fmt, ...) do {    \
 160     fprintf(stderr, "Monitor: ");       \
 161     fprintf(stderr, fmt, ## __VA_ARGS__); } while (0)
 162
 163 static inline void mon_print_count_inc(Monitor *mon)
 164 {
 165     mon->print_calls_nr++;
 166 }
 167
 168 static inline void mon_print_count_init(Monitor *mon)
 169 {
 170     mon->print_calls_nr = 0;
 171 }
 172
 173 static inline int mon_print_count_get(const Monitor *mon)
 174 {
 175     return mon->print_calls_nr;
 176 }
 177
 178 #else /* !CONFIG_DEBUG_MONITOR */
 179 #define MON_DEBUG(fmt, ...) do { } while (0)
 180 static inline void mon_print_count_inc(Monitor *mon) { }
 181 static inline void mon_print_count_init(Monitor *mon) { }
 182 static inline int mon_print_count_get(const Monitor *mon) { return 0; }
 183 #endif /* CONFIG_DEBUG_MONITOR */
 184
 185 /* QMP checker flags */
 186 #define QMP_ACCEPT_UNKNOWNS 1
 187
 188 static QLIST_HEAD(mon_list, Monitor) mon_list;
 189
 190 static const mon_cmd_t mon_cmds[];
 191 static const mon_cmd_t info_cmds[];
 192
 193 static const mon_cmd_t qmp_cmds[];
 194 static const mon_cmd_t qmp_query_cmds[];
 195
 196 Monitor *cur_mon;
 197 Monitor *default_mon;
 198
 199 static void monitor_command_cb(Monitor *mon, const char *cmdline,
 200                                void *opaque);
 201
 202 static inline int qmp_cmd_mode(const Monitor *mon)
 203 {
 204     return (mon->mc ? mon->mc->command_mode : 0);
 205 }
 206
 207 /* Return true if in control mode, false otherwise */
 208 static inline int monitor_ctrl_mode(const Monitor *mon)
 209 {
 210     return (mon->flags & MONITOR_USE_CONTROL);
 211 }
 212
 213 /* Return non-zero iff we have a current monitor, and it is in QMP mode.  */
 214 int monitor_cur_is_qmp(void)
 215 {
 216     return cur_mon && monitor_ctrl_mode(cur_mon);
 217 }
 218
 219 static void monitor_read_command(Monitor *mon, int show_prompt)
 220 {
 221     if (!mon->rs)
 222         return;
 223
 224     readline_start(mon->rs, "(qemu) ", 0, monitor_command_cb, NULL);
 225     if (show_prompt)
 226         readline_show_prompt(mon->rs);
 227 }
 228
 229 static int monitor_read_password(Monitor *mon, ReadLineFunc *readline_func,
 230                                  void *opaque)
 231 {
 232     if (monitor_ctrl_mode(mon)) {
 233         qerror_report(QERR_MISSING_PARAMETER, "password");
 234         return -EINVAL;
 235     } else if (mon->rs) {
 236         readline_start(mon->rs, "Password: ", 1, readline_func, opaque);
 237         /* prompt is printed on return from the command handler */
 238         return 0;
 239     } else {
 240         monitor_printf(mon, "terminal does not support password prompting\n");
 241         return -ENOTTY;
 242     }
 243 }
 244
 245 void monitor_flush(Monitor *mon)
 246 {
 247     if (mon && mon->outbuf_index != 0 && !mon->mux_out) {
 248         qemu_chr_write(mon->chr, mon->outbuf, mon->outbuf_index);
 249         mon->outbuf_index = 0;
 250     }
 251 }
 252
 253 /* flush at every end of line or if the buffer is full */
 254 static void monitor_puts(Monitor *mon, const char *str)
 255 {
 256     char c;
 257
 258     for(;;) {
 259         c = *str++;
 260         if (c == '\0')
 261             break;
 262         if (c == '\n')
 263             mon->outbuf[mon->outbuf_index++] = '\r';
 264         mon->outbuf[mon->outbuf_index++] = c;
 265         if (mon->outbuf_index >= (sizeof(mon->outbuf) - 1)
 266             || c == '\n')
 267             monitor_flush(mon);
 268     }
 269 }
 270
 271 void monitor_vprintf(Monitor *mon, const char *fmt, va_list ap)
 272 {
 273     char buf[4096];
 274
 275     if (!mon)
 276         return;
 277
 278     mon_print_count_inc(mon);
 279
 280     if (monitor_ctrl_mode(mon)) {
 281         return;
 282     }
 283
 284     vsnprintf(buf, sizeof(buf), fmt, ap);
 285     monitor_puts(mon, buf);
 286 }
 287
 288 void monitor_printf(Monitor *mon, const char *fmt, ...)
 289 {
 290     va_list ap;
 291     va_start(ap, fmt);
 292     monitor_vprintf(mon, fmt, ap);
 293     va_end(ap);
 294 }
 295
 296 void monitor_print_filename(Monitor *mon, const char *filename)
 297 {
 298     int i;
 299
 300     for (i = 0; filename[i]; i++) {
 301         switch (filename[i]) {
 302         case ' ':
 303         case '"':
 304         case '\\':
 305             monitor_printf(mon, "\\%c", filename[i]);
 306             break;
 307         case '\t':
 308             monitor_printf(mon, "\\t");
 309             break;
 310         case '\r':
 311             monitor_printf(mon, "\\r");
 312             break;
 313         case '\n':
 314             monitor_printf(mon, "\\n");
 315             break;
 316         default:
 317             monitor_printf(mon, "%c", filename[i]);
 318             break;
 319         }
 320     }
 321 }
 322
 323 static int GCC_FMT_ATTR(2, 3) monitor_fprintf(FILE *stream,
 324                                               const char *fmt, ...)
 325 {
 326     va_list ap;
 327     va_start(ap, fmt);
 328     monitor_vprintf((Monitor *)stream, fmt, ap);
 329     va_end(ap);
 330     return 0;
 331 }
 332
 333 static void monitor_user_noop(Monitor *mon, const QObject *data) { }
 334
 335 static inline int handler_is_qobject(const mon_cmd_t *cmd)
 336 {
 337     return cmd->user_print != NULL;
 338 }
 339
 340 static inline bool handler_is_async(const mon_cmd_t *cmd)
 341 {
 342     return cmd->flags & MONITOR_CMD_ASYNC;
 343 }
 344
 345 static inline int monitor_has_error(const Monitor *mon)
 346 {
 347     return mon->error != NULL;
 348 }
 349
 350 static void monitor_json_emitter(Monitor *mon, const QObject *data)
 351 {
 352     QString *json;
 353
 354     if (mon->flags & MONITOR_USE_PRETTY)
 355         json = qobject_to_json_pretty(data);
 356     else
 357         json = qobject_to_json(data);
 358     assert(json != NULL);
 359
 360     qstring_append_chr(json, '\n');
 361     monitor_puts(mon, qstring_get_str(json));
 362
 363     QDECREF(json);
 364 }
 365
 366 static void monitor_protocol_emitter(Monitor *mon, QObject *data)
 367 {
 368     QDict *qmp;
 369
 370     qmp = qdict_new();
 371
 372     if (!monitor_has_error(mon)) {
 373         /* success response */
 374         if (data) {
 375             qobject_incref(data);
 376             qdict_put_obj(qmp, "return", data);
 377         } else {
 378             /* return an empty QDict by default */
 379             qdict_put(qmp, "return", qdict_new());
 380         }
 381     } else {
 382         /* error response */
 383         qdict_put(mon->error->error, "desc", qerror_human(mon->error));
 384         qdict_put(qmp, "error", mon->error->error);
 385         QINCREF(mon->error->error);
 386         QDECREF(mon->error);
 387         mon->error = NULL;
 388     }
 389
 390     if (mon->mc->id) {
 391         qdict_put_obj(qmp, "id", mon->mc->id);
 392         mon->mc->id = NULL;
 393     }
 394
 395     monitor_json_emitter(mon, QOBJECT(qmp));
 396     QDECREF(qmp);
 397 }
 398
 399 static void timestamp_put(QDict *qdict)
 400 {
 401     int err;
 402     QObject *obj;
 403     qemu_timeval tv;
 404
 405     err = qemu_gettimeofday(&tv);
 406     if (err < 0)
 407         return;
 408
 409     obj = qobject_from_jsonf("{ 'seconds': %" PRId64 ", "
 410                                 "'microseconds': %" PRId64 " }",
 411                                 (int64_t) tv.tv_sec, (int64_t) tv.tv_usec);
 412     qdict_put_obj(qdict, "timestamp", obj);
 413 }
 414
 415 /**
 416  * monitor_protocol_event(): Generate a Monitor event
 417  *
 418  * Event-specific data can be emitted through the (optional) 'data' parameter.
 419  */
 420 void monitor_protocol_event(MonitorEvent event, QObject *data)
 421 {
 422     QDict *qmp;
 423     const char *event_name;
 424     Monitor *mon;
 425
 426     assert(event < QEVENT_MAX);
 427
 428     switch (event) {
 429         case QEVENT_SHUTDOWN:
 430             event_name = "SHUTDOWN";
 431             break;
 432         case QEVENT_RESET:
 433             event_name = "RESET";
 434             break;
 435         case QEVENT_POWERDOWN:
 436             event_name = "POWERDOWN";
 437             break;
 438         case QEVENT_STOP:
 439             event_name = "STOP";
 440             break;
 441         case QEVENT_RESUME:
 442             event_name = "RESUME";
 443             break;
 444         case QEVENT_VNC_CONNECTED:
 445             event_name = "VNC_CONNECTED";
 446             break;
 447         case QEVENT_VNC_INITIALIZED:
 448             event_name = "VNC_INITIALIZED";
 449             break;
 450         case QEVENT_VNC_DISCONNECTED:
 451             event_name = "VNC_DISCONNECTED";
 452             break;
 453         case QEVENT_BLOCK_IO_ERROR:
 454             event_name = "BLOCK_IO_ERROR";
 455             break;
 456         case QEVENT_RTC_CHANGE:
 457             event_name = "RTC_CHANGE";
 458             break;
 459         case QEVENT_WATCHDOG:
 460             event_name = "WATCHDOG";
 461             break;
 462         default:
 463             abort();
 464             break;
 465     }
 466
 467     qmp = qdict_new();
 468     timestamp_put(qmp);
 469     qdict_put(qmp, "event", qstring_from_str(event_name));
 470     if (data) {
 471         qobject_incref(data);
 472         qdict_put_obj(qmp, "data", data);
 473     }
 474
 475     QLIST_FOREACH(mon, &mon_list, entry) {
 476         if (monitor_ctrl_mode(mon) && qmp_cmd_mode(mon)) {
 477             monitor_json_emitter(mon, QOBJECT(qmp));
 478         }
 479     }
 480     QDECREF(qmp);
 481 }
 482
 483 static int do_qmp_capabilities(Monitor *mon, const QDict *params,
 484                                QObject **ret_data)
 485 {
 486     /* Will setup QMP capabilities in the future */
 487     if (monitor_ctrl_mode(mon)) {
 488         mon->mc->command_mode = 1;
 489     }
 490
 491     return 0;
 492 }
 493
 494 static int compare_cmd(const char *name, const char *list)
 495 {
 496     const char *p, *pstart;
 497     int len;
 498     len = strlen(name);
 499     p = list;
 500     for(;;) {
 501         pstart = p;
 502         p = strchr(p, '|');
 503         if (!p)
 504             p = pstart + strlen(pstart);
 505         if ((p - pstart) == len && !memcmp(pstart, name, len))
 506             return 1;
 507         if (*p == '\0')
 508             break;
 509         p++;
 510     }
 511     return 0;
 512 }
 513
 514 static void help_cmd_dump(Monitor *mon, const mon_cmd_t *cmds,
 515                           const char *prefix, const char *name)
 516 {
 517     const mon_cmd_t *cmd;
 518
 519     for(cmd = cmds; cmd->name != NULL; cmd++) {
 520         if (!name || !strcmp(name, cmd->name))
 521             monitor_printf(mon, "%s%s %s -- %s\n", prefix, cmd->name,
 522                            cmd->params, cmd->help);
 523     }
 524 }
 525
 526 static void help_cmd(Monitor *mon, const char *name)
 527 {
 528     if (name && !strcmp(name, "info")) {
 529         help_cmd_dump(mon, info_cmds, "info ", NULL);
 530     } else {
 531         help_cmd_dump(mon, mon_cmds, "", name);
 532         if (name && !strcmp(name, "log")) {
 533             const CPULogItem *item;
 534             monitor_printf(mon, "Log items (comma separated):\n");
 535             monitor_printf(mon, "%-10s %s\n", "none", "remove all logs");
 536             for(item = cpu_log_items; item->mask != 0; item++) {
 537                 monitor_printf(mon, "%-10s %s\n", item->name, item->help);
 538             }
 539         }
 540     }
 541 }
 542
 543 static void do_help_cmd(Monitor *mon, const QDict *qdict)
 544 {
 545     help_cmd(mon, qdict_get_try_str(qdict, "name"));
 546 }
 547
 548 #ifdef CONFIG_SIMPLE_TRACE
 549 static void do_change_trace_event_state(Monitor *mon, const QDict *qdict)
 550 {
 551     const char *tp_name = qdict_get_str(qdict, "name");
 552     bool new_state = qdict_get_bool(qdict, "option");
 553     int ret = st_change_trace_event_state(tp_name, new_state);
 554
 555     if (!ret) {
 556         monitor_printf(mon, "unknown event name \"%s\"\n", tp_name);
 557     }
 558 }
 559
 560 static void do_trace_file(Monitor *mon, const QDict *qdict)
 561 {
 562     const char *op = qdict_get_try_str(qdict, "op");
 563     const char *arg = qdict_get_try_str(qdict, "arg");
 564
 565     if (!op) {
 566         st_print_trace_file_status((FILE *)mon, &monitor_fprintf);
 567     } else if (!strcmp(op, "on")) {
 568         st_set_trace_file_enabled(true);
 569     } else if (!strcmp(op, "off")) {
 570         st_set_trace_file_enabled(false);
 571     } else if (!strcmp(op, "flush")) {
 572         st_flush_trace_buffer();
 573     } else if (!strcmp(op, "set")) {
 574         if (arg) {
 575             st_set_trace_file(arg);
 576         }
 577     } else {
 578         monitor_printf(mon, "unexpected argument \"%s\"\n", op);
 579         help_cmd(mon, "trace-file");
 580     }
 581 }
 582 #endif
 583
 584 static void user_monitor_complete(void *opaque, QObject *ret_data)
 585 {
 586     MonitorCompletionData *data = (MonitorCompletionData *)opaque;
 587
 588     if (ret_data) {
 589         data->user_print(data->mon, ret_data);
 590     }
 591     monitor_resume(data->mon);
 592     qemu_free(data);
 593 }
 594
 595 static void qmp_monitor_complete(void *opaque, QObject *ret_data)
 596 {
 597     monitor_protocol_emitter(opaque, ret_data);
 598 }
 599
 600 static int qmp_async_cmd_handler(Monitor *mon, const mon_cmd_t *cmd,
 601                                  const QDict *params)
 602 {
 603     return cmd->mhandler.cmd_async(mon, params, qmp_monitor_complete, mon);
 604 }
 605
 606 static void qmp_async_info_handler(Monitor *mon, const mon_cmd_t *cmd)
 607 {
 608     cmd->mhandler.info_async(mon, qmp_monitor_complete, mon);
 609 }
 610
 611 static void user_async_cmd_handler(Monitor *mon, const mon_cmd_t *cmd,
 612                                    const QDict *params)
 613 {
 614     int ret;
 615
 616     MonitorCompletionData *cb_data = qemu_malloc(sizeof(*cb_data));
 617     cb_data->mon = mon;
 618     cb_data->user_print = cmd->user_print;
 619     monitor_suspend(mon);
 620     ret = cmd->mhandler.cmd_async(mon, params,
 621                                   user_monitor_complete, cb_data);
 622     if (ret < 0) {
 623         monitor_resume(mon);
 624         qemu_free(cb_data);
 625     }
 626 }
 627
 628 static void user_async_info_handler(Monitor *mon, const mon_cmd_t *cmd)
 629 {
 630     int ret;
 631
 632     MonitorCompletionData *cb_data = qemu_malloc(sizeof(*cb_data));
 633     cb_data->mon = mon;
 634     cb_data->user_print = cmd->user_print;
 635     monitor_suspend(mon);
 636     ret = cmd->mhandler.info_async(mon, user_monitor_complete, cb_data);
 637     if (ret < 0) {
 638         monitor_resume(mon);
 639         qemu_free(cb_data);
 640     }
 641 }
 642
 643 static void do_info(Monitor *mon, const QDict *qdict)
 644 {
 645     const mon_cmd_t *cmd;
 646     const char *item = qdict_get_try_str(qdict, "item");
 647
 648     if (!item) {
 649         goto help;
 650     }
 651
 652     for (cmd = info_cmds; cmd->name != NULL; cmd++) {
 653         if (compare_cmd(item, cmd->name))
 654             break;
 655     }
 656
 657     if (cmd->name == NULL) {
 658         goto help;
 659     }
 660
 661     if (handler_is_async(cmd)) {
 662         user_async_info_handler(mon, cmd);
 663     } else if (handler_is_qobject(cmd)) {
 664         QObject *info_data = NULL;
 665
 666         cmd->mhandler.info_new(mon, &info_data);
 667         if (info_data) {
 668             cmd->user_print(mon, info_data);
 669             qobject_decref(info_data);
 670         }
 671     } else {
 672         cmd->mhandler.info(mon);
 673     }
 674
 675     return;
 676
 677 help:
 678     help_cmd(mon, "info");
 679 }
 680
 681 static void do_info_version_print(Monitor *mon, const QObject *data)
 682 {
 683     QDict *qdict;
 684     QDict *qemu;
 685
 686     qdict = qobject_to_qdict(data);
 687     qemu = qdict_get_qdict(qdict, "qemu");
 688
 689     monitor_printf(mon, "%" PRId64 ".%" PRId64 ".%" PRId64 "%s\n",
 690                   qdict_get_int(qemu, "major"),
 691                   qdict_get_int(qemu, "minor"),
 692                   qdict_get_int(qemu, "micro"),
 693                   qdict_get_str(qdict, "package"));
 694 }
 695
 696 static void do_info_version(Monitor *mon, QObject **ret_data)
 697 {
 698     const char *version = QEMU_VERSION;
 699     int major = 0, minor = 0, micro = 0;
 700     char *tmp;
 701
 702     major = strtol(version, &tmp, 10);
 703     tmp++;
 704     minor = strtol(tmp, &tmp, 10);
 705     tmp++;
 706     micro = strtol(tmp, &tmp, 10);
 707
 708     *ret_data = qobject_from_jsonf("{ 'qemu': { 'major': %d, 'minor': %d, \
 709         'micro': %d }, 'package': %s }", major, minor, micro, QEMU_PKGVERSION);
 710 }
 711
 712 static void do_info_name_print(Monitor *mon, const QObject *data)
 713 {
 714     QDict *qdict;
 715
 716     qdict = qobject_to_qdict(data);
 717     if (qdict_size(qdict) == 0) {
 718         return;
 719     }
 720
 721     monitor_printf(mon, "%s\n", qdict_get_str(qdict, "name"));
 722 }
 723
 724 static void do_info_name(Monitor *mon, QObject **ret_data)
 725 {
 726     *ret_data = qemu_name ? qobject_from_jsonf("{'name': %s }", qemu_name) :
 727                             qobject_from_jsonf("{}");
 728 }
 729
 730 static QObject *get_cmd_dict(const char *name)
 731 {
 732     const char *p;
 733
 734     /* Remove '|' from some commands */
 735     p = strchr(name, '|');
 736     if (p) {
 737         p++;
 738     } else {
 739         p = name;
 740     }
 741
 742     return qobject_from_jsonf("{ 'name': %s }", p);
 743 }
 744
 745 static void do_info_commands(Monitor *mon, QObject **ret_data)
 746 {
 747     QList *cmd_list;
 748     const mon_cmd_t *cmd;
 749
 750     cmd_list = qlist_new();
 751
 752     for (cmd = qmp_cmds; cmd->name != NULL; cmd++) {
 753         qlist_append_obj(cmd_list, get_cmd_dict(cmd->name));
 754     }
 755
 756     for (cmd = qmp_query_cmds; cmd->name != NULL; cmd++) {
 757         char buf[128];
 758         snprintf(buf, sizeof(buf), "query-%s", cmd->name);
 759         qlist_append_obj(cmd_list, get_cmd_dict(buf));
 760     }
 761
 762     *ret_data = QOBJECT(cmd_list);
 763 }
 764
 765 static void do_info_uuid_print(Monitor *mon, const QObject *data)
 766 {
 767     monitor_printf(mon, "%s\n", qdict_get_str(qobject_to_qdict(data), "UUID"));
 768 }
 769
 770 static void do_info_uuid(Monitor *mon, QObject **ret_data)
 771 {
 772     char uuid[64];
 773
 774     snprintf(uuid, sizeof(uuid), UUID_FMT, qemu_uuid[0], qemu_uuid[1],
 775                    qemu_uuid[2], qemu_uuid[3], qemu_uuid[4], qemu_uuid[5],
 776                    qemu_uuid[6], qemu_uuid[7], qemu_uuid[8], qemu_uuid[9],
 777                    qemu_uuid[10], qemu_uuid[11], qemu_uuid[12], qemu_uuid[13],
 778                    qemu_uuid[14], qemu_uuid[15]);
 779     *ret_data = qobject_from_jsonf("{ 'UUID': %s }", uuid);
 780 }
 781
 782 /* get the current CPU defined by the user */
 783 static int mon_set_cpu(int cpu_index)
 784 {
 785     CPUState *env;
 786
 787     for(env = first_cpu; env != NULL; env = env->next_cpu) {
 788         if (env->cpu_index == cpu_index) {
 789             cur_mon->mon_cpu = env;
 790             return 0;
 791         }
 792     }
 793     return -1;
 794 }
 795
 796 static CPUState *mon_get_cpu(void)
 797 {
 798     if (!cur_mon->mon_cpu) {
 799         mon_set_cpu(0);
 800     }
 801     cpu_synchronize_state(cur_mon->mon_cpu);
 802     return cur_mon->mon_cpu;
 803 }
 804
 805 static void do_info_registers(Monitor *mon)
 806 {
 807     CPUState *env;
 808     env = mon_get_cpu();
 809 #ifdef TARGET_I386
 810     cpu_dump_state(env, (FILE *)mon, monitor_fprintf,
 811                    X86_DUMP_FPU);
 812 #else
 813     cpu_dump_state(env, (FILE *)mon, monitor_fprintf,
 814                    0);
 815 #endif
 816 }
 817
 818 static void print_cpu_iter(QObject *obj, void *opaque)
 819 {
 820     QDict *cpu;
 821     int active = ' ';
 822     Monitor *mon = opaque;
 823
 824     assert(qobject_type(obj) == QTYPE_QDICT);
 825     cpu = qobject_to_qdict(obj);
 826
 827     if (qdict_get_bool(cpu, "current")) {
 828         active = '*';
 829     }
 830
 831     monitor_printf(mon, "%c CPU #%d: ", active, (int)qdict_get_int(cpu, "CPU"));
 832
 833 #if defined(TARGET_I386)
 834     monitor_printf(mon, "pc=0x" TARGET_FMT_lx,
 835                    (target_ulong) qdict_get_int(cpu, "pc"));
 836 #elif defined(TARGET_PPC)
 837     monitor_printf(mon, "nip=0x" TARGET_FMT_lx,
 838                    (target_long) qdict_get_int(cpu, "nip"));
 839 #elif defined(TARGET_SPARC)
 840     monitor_printf(mon, "pc=0x " TARGET_FMT_lx,
 841                    (target_long) qdict_get_int(cpu, "pc"));
 842     monitor_printf(mon, "npc=0x" TARGET_FMT_lx,
 843                    (target_long) qdict_get_int(cpu, "npc"));
 844 #elif defined(TARGET_MIPS)
 845     monitor_printf(mon, "PC=0x" TARGET_FMT_lx,
 846                    (target_long) qdict_get_int(cpu, "PC"));
 847 #endif
 848
 849     if (qdict_get_bool(cpu, "halted")) {
 850         monitor_printf(mon, " (halted)");
 851     }
 852
 853     monitor_printf(mon, "\n");
 854 }
 855
 856 static void monitor_print_cpus(Monitor *mon, const QObject *data)
 857 {
 858     QList *cpu_list;
 859
 860     assert(qobject_type(data) == QTYPE_QLIST);
 861     cpu_list = qobject_to_qlist(data);
 862     qlist_iter(cpu_list, print_cpu_iter, mon);
 863 }
 864
 865 static void do_info_cpus(Monitor *mon, QObject **ret_data)
 866 {
 867     CPUState *env;
 868     QList *cpu_list;
 869
 870     cpu_list = qlist_new();
 871
 872     /* just to set the default cpu if not already done */
 873     mon_get_cpu();
 874
 875     for(env = first_cpu; env != NULL; env = env->next_cpu) {
 876         QDict *cpu;
 877         QObject *obj;
 878
 879         cpu_synchronize_state(env);
 880
 881         obj = qobject_from_jsonf("{ 'CPU': %d, 'current': %i, 'halted': %i }",
 882                                  env->cpu_index, env == mon->mon_cpu,
 883                                  env->halted);
 884
 885         cpu = qobject_to_qdict(obj);
 886
 887 #if defined(TARGET_I386)
 888         qdict_put(cpu, "pc", qint_from_int(env->eip + env->segs[R_CS].base));
 889 #elif defined(TARGET_PPC)
 890         qdict_put(cpu, "nip", qint_from_int(env->nip));
 891 #elif defined(TARGET_SPARC)
 892         qdict_put(cpu, "pc", qint_from_int(env->pc));
 893         qdict_put(cpu, "npc", qint_from_int(env->npc));
 894 #elif defined(TARGET_MIPS)
 895         qdict_put(cpu, "PC", qint_from_int(env->active_tc.PC));
 896 #endif
 897
 898         qlist_append(cpu_list, cpu);
 899     }
 900
 901     *ret_data = QOBJECT(cpu_list);
 902 }
 903
 904 static int do_cpu_set(Monitor *mon, const QDict *qdict, QObject **ret_data)
 905 {
 906     int index = qdict_get_int(qdict, "index");
 907     if (mon_set_cpu(index) < 0) {
 908         qerror_report(QERR_INVALID_PARAMETER_VALUE, "index",
 909                       "a CPU number");
 910         return -1;
 911     }
 912     return 0;
 913 }
 914
 915 static void do_info_jit(Monitor *mon)
 916 {
 917     dump_exec_info((FILE *)mon, monitor_fprintf);
 918 }
 919
 920 static void do_info_history(Monitor *mon)
 921 {
 922     int i;
 923     const char *str;
 924
 925     if (!mon->rs)
 926         return;
 927     i = 0;
 928     for(;;) {
 929         str = readline_get_history(mon->rs, i);
 930         if (!str)
 931             break;
 932         monitor_printf(mon, "%d: '%s'\n", i, str);
 933         i++;
 934     }
 935 }
 936
 937 #if defined(TARGET_PPC)
 938 /* XXX: not implemented in other targets */
 939 static void do_info_cpu_stats(Monitor *mon)
 940 {
 941     CPUState *env;
 942
 943     env = mon_get_cpu();
 944     cpu_dump_statistics(env, (FILE *)mon, &monitor_fprintf, 0);
 945 }
 946 #endif
 947
 948 #if defined(CONFIG_SIMPLE_TRACE)
 949 static void do_info_trace(Monitor *mon)
 950 {
 951     st_print_trace((FILE *)mon, &monitor_fprintf);
 952 }
 953
 954 static void do_info_trace_events(Monitor *mon)
 955 {
 956     st_print_trace_events((FILE *)mon, &monitor_fprintf);
 957 }
 958 #endif
 959
 960 /**
 961  * do_quit(): Quit QEMU execution
 962  */
 963 static int do_quit(Monitor *mon, const QDict *qdict, QObject **ret_data)
 964 {
 965     monitor_suspend(mon);
 966     no_shutdown = 0;
 967     qemu_system_shutdown_request();
 968
 969     return 0;
 970 }
 971
 972 static int change_vnc_password(const char *password)
 973 {
 974     if (vnc_display_password(NULL, password) < 0) {
 975         qerror_report(QERR_SET_PASSWD_FAILED);
 976         return -1;
 977     }
 978
 979     return 0;
 980 }
 981
 982 static void change_vnc_password_cb(Monitor *mon, const char *password,
 983                                    void *opaque)
 984 {
 985     change_vnc_password(password);
 986     monitor_read_command(mon, 1);
 987 }
 988
 989 static int do_change_vnc(Monitor *mon, const char *target, const char *arg)
 990 {
 991     if (strcmp(target, "passwd") == 0 ||
 992         strcmp(target, "password") == 0) {
 993         if (arg) {
 994             char password[9];
 995             strncpy(password, arg, sizeof(password));
 996             password[sizeof(password) - 1] = '\0';
 997             return change_vnc_password(password);
 998         } else {
 999             return monitor_read_password(mon, change_vnc_password_cb, NULL);
1000         }
1001     } else {
1002         if (vnc_display_open(NULL, target) < 0) {
1003             qerror_report(QERR_VNC_SERVER_FAILED, target);
1004             return -1;
1005         }
1006     }
1007
1008     return 0;
1009 }
1010
1011 /**
1012  * do_change(): Change a removable medium, or VNC configuration
1013  */
1014 static int do_change(Monitor *mon, const QDict *qdict, QObject **ret_data)
1015 {
1016     const char *device = qdict_get_str(qdict, "device");
1017     const char *target = qdict_get_str(qdict, "target");
1018     const char *arg = qdict_get_try_str(qdict, "arg");
1019     int ret;
1020
1021     if (strcmp(device, "vnc") == 0) {
1022         ret = do_change_vnc(mon, target, arg);
1023     } else {
1024         ret = do_change_block(mon, device, target, arg);
1025     }
1026
1027     return ret;
1028 }
1029
1030 static int do_screen_dump(Monitor *mon, const QDict *qdict, QObject **ret_data)
1031 {
1032     vga_hw_screen_dump(qdict_get_str(qdict, "filename"));
1033     return 0;
1034 }
1035
1036 static void do_logfile(Monitor *mon, const QDict *qdict)
1037 {
1038     cpu_set_log_filename(qdict_get_str(qdict, "filename"));
1039 }
1040
1041 static void do_log(Monitor *mon, const QDict *qdict)
1042 {
1043     int mask;
1044     const char *items = qdict_get_str(qdict, "items");
1045
1046     if (!strcmp(items, "none")) {
1047         mask = 0;
1048     } else {
1049         mask = cpu_str_to_log_mask(items);
1050         if (!mask) {
1051             help_cmd(mon, "log");
1052             return;
1053         }
1054     }
1055     cpu_set_log(mask);
1056 }
1057
1058 static void do_singlestep(Monitor *mon, const QDict *qdict)
1059 {
1060     const char *option = qdict_get_try_str(qdict, "option");
1061     if (!option || !strcmp(option, "on")) {
1062         singlestep = 1;
1063     } else if (!strcmp(option, "off")) {
1064         singlestep = 0;
1065     } else {
1066         monitor_printf(mon, "unexpected option %s\n", option);
1067     }
1068 }
1069
1070 /**
1071  * do_stop(): Stop VM execution
1072  */
1073 static int do_stop(Monitor *mon, const QDict *qdict, QObject **ret_data)
1074 {
1075     vm_stop(EXCP_INTERRUPT);
1076     return 0;
1077 }
1078
1079 static void encrypted_bdrv_it(void *opaque, BlockDriverState *bs);
1080
1081 struct bdrv_iterate_context {
1082     Monitor *mon;
1083     int err;
1084 };
1085
1086 /**
1087  * do_cont(): Resume emulation.
1088  */
1089 static int do_cont(Monitor *mon, const QDict *qdict, QObject **ret_data)
1090 {
1091     struct bdrv_iterate_context context = { mon, 0 };
1092
1093     if (incoming_expected) {
1094         qerror_report(QERR_MIGRATION_EXPECTED);
1095         return -1;
1096     }
1097     bdrv_iterate(encrypted_bdrv_it, &context);
1098     /* only resume the vm if all keys are set and valid */
1099     if (!context.err) {
1100         vm_start();
1101         return 0;
1102     } else {
1103         return -1;
1104     }
1105 }
1106
1107 static void bdrv_key_cb(void *opaque, int err)
1108 {
1109     Monitor *mon = opaque;
1110
1111     /* another key was set successfully, retry to continue */
1112     if (!err)
1113         do_cont(mon, NULL, NULL);
1114 }
1115
1116 static void encrypted_bdrv_it(void *opaque, BlockDriverState *bs)
1117 {
1118     struct bdrv_iterate_context *context = opaque;
1119
1120     if (!context->err && bdrv_key_required(bs)) {
1121         context->err = -EBUSY;
1122         monitor_read_bdrv_key_start(context->mon, bs, bdrv_key_cb,
1123                                     context->mon);
1124     }
1125 }
1126
1127 static void do_gdbserver(Monitor *mon, const QDict *qdict)
1128 {
1129     const char *device = qdict_get_try_str(qdict, "device");
1130     if (!device)
1131         device = "tcp::" DEFAULT_GDBSTUB_PORT;
1132     if (gdbserver_start(device) < 0) {
1133         monitor_printf(mon, "Could not open gdbserver on device '%s'\n",
1134                        device);
1135     } else if (strcmp(device, "none") == 0) {
1136         monitor_printf(mon, "Disabled gdbserver\n");
1137     } else {
1138         monitor_printf(mon, "Waiting for gdb connection on device '%s'\n",
1139                        device);
1140     }
1141 }
1142
1143 static void do_watchdog_action(Monitor *mon, const QDict *qdict)
1144 {
1145     const char *action = qdict_get_str(qdict, "action");
1146     if (select_watchdog_action(action) == -1) {
1147         monitor_printf(mon, "Unknown watchdog action '%s'\n", action);
1148     }
1149 }
1150
1151 static void monitor_printc(Monitor *mon, int c)
1152 {
1153     monitor_printf(mon, "'");
1154     switch(c) {
1155     case '\'':
1156         monitor_printf(mon, "\\'");
1157         break;
1158     case '\\':
1159         monitor_printf(mon, "\\\\");
1160         break;
1161     case '\n':
1162         monitor_printf(mon, "\\n");
1163         break;
1164     case '\r':
1165         monitor_printf(mon, "\\r");
1166         break;
1167     default:
1168         if (c >= 32 && c <= 126) {
1169             monitor_printf(mon, "%c", c);
1170         } else {
1171             monitor_printf(mon, "\\x%02x", c);
1172         }
1173         break;
1174     }
1175     monitor_printf(mon, "'");
1176 }
1177
1178 static void memory_dump(Monitor *mon, int count, int format, int wsize,
1179                         target_phys_addr_t addr, int is_physical)
1180 {
1181     CPUState *env;
1182     int l, line_size, i, max_digits, len;
1183     uint8_t buf[16];
1184     uint64_t v;
1185
1186     if (format == 'i') {
1187         int flags;
1188         flags = 0;
1189         env = mon_get_cpu();
1190 #ifdef TARGET_I386
1191         if (wsize == 2) {
1192             flags = 1;
1193         } else if (wsize == 4) {
1194             flags = 0;
1195         } else {
1196             /* as default we use the current CS size */
1197             flags = 0;
1198             if (env) {
1199 #ifdef TARGET_X86_64
1200                 if ((env->efer & MSR_EFER_LMA) &&
1201                     (env->segs[R_CS].flags & DESC_L_MASK))
1202                     flags = 2;
1203                 else
1204 #endif
1205                 if (!(env->segs[R_CS].flags & DESC_B_MASK))
1206                     flags = 1;
1207             }
1208         }
1209 #endif
1210         monitor_disas(mon, env, addr, count, is_physical, flags);
1211         return;
1212     }
1213
1214     len = wsize * count;
1215     if (wsize == 1)
1216         line_size = 8;
1217     else
1218         line_size = 16;
1219     max_digits = 0;
1220
1221     switch(format) {
1222     case 'o':
1223         max_digits = (wsize * 8 + 2) / 3;
1224         break;
1225     default:
1226     case 'x':
1227         max_digits = (wsize * 8) / 4;
1228         break;
1229     case 'u':
1230     case 'd':
1231         max_digits = (wsize * 8 * 10 + 32) / 33;
1232         break;
1233     case 'c':
1234         wsize = 1;
1235         break;
1236     }
1237
1238     while (len > 0) {
1239         if (is_physical)
1240             monitor_printf(mon, TARGET_FMT_plx ":", addr);
1241         else
1242             monitor_printf(mon, TARGET_FMT_lx ":", (target_ulong)addr);
1243         l = len;
1244         if (l > line_size)
1245             l = line_size;
1246         if (is_physical) {
1247             cpu_physical_memory_rw(addr, buf, l, 0);
1248         } else {
1249             env = mon_get_cpu();
1250             if (cpu_memory_rw_debug(env, addr, buf, l, 0) < 0) {
1251                 monitor_printf(mon, " Cannot access memory\n");
1252                 break;
1253             }
1254         }
1255         i = 0;
1256         while (i < l) {
1257             switch(wsize) {
1258             default:
1259             case 1:
1260                 v = ldub_raw(buf + i);
1261                 break;
1262             case 2:
1263                 v = lduw_raw(buf + i);
1264                 break;
1265             case 4:
1266                 v = (uint32_t)ldl_raw(buf + i);
1267                 break;
1268             case 8:
1269                 v = ldq_raw(buf + i);
1270                 break;
1271             }
1272             monitor_printf(mon, " ");
1273             switch(format) {
1274             case 'o':
1275                 monitor_printf(mon, "%#*" PRIo64, max_digits, v);
1276                 break;
1277             case 'x':
1278                 monitor_printf(mon, "0x%0*" PRIx64, max_digits, v);
1279                 break;
1280             case 'u':
1281                 monitor_printf(mon, "%*" PRIu64, max_digits, v);
1282                 break;
1283             case 'd':
1284                 monitor_printf(mon, "%*" PRId64, max_digits, v);
1285                 break;
1286             case 'c':
1287                 monitor_printc(mon, v);
1288                 break;
1289             }
1290             i += wsize;
1291         }
1292         monitor_printf(mon, "\n");
1293         addr += l;
1294         len -= l;
1295     }
1296 }
1297
1298 static void do_memory_dump(Monitor *mon, const QDict *qdict)
1299 {
1300     int count = qdict_get_int(qdict, "count");
1301     int format = qdict_get_int(qdict, "format");
1302     int size = qdict_get_int(qdict, "size");
1303     target_long addr = qdict_get_int(qdict, "addr");
1304
1305     memory_dump(mon, count, format, size, addr, 0);
1306 }
1307
1308 static void do_physical_memory_dump(Monitor *mon, const QDict *qdict)
1309 {
1310     int count = qdict_get_int(qdict, "count");
1311     int format = qdict_get_int(qdict, "format");
1312     int size = qdict_get_int(qdict, "size");
1313     target_phys_addr_t addr = qdict_get_int(qdict, "addr");
1314
1315     memory_dump(mon, count, format, size, addr, 1);
1316 }
1317
1318 static void do_print(Monitor *mon, const QDict *qdict)
1319 {
1320     int format = qdict_get_int(qdict, "format");
1321     target_phys_addr_t val = qdict_get_int(qdict, "val");
1322
1323 #if TARGET_PHYS_ADDR_BITS == 32
1324     switch(format) {
1325     case 'o':
1326         monitor_printf(mon, "%#o", val);
1327         break;
1328     case 'x':
1329         monitor_printf(mon, "%#x", val);
1330         break;
1331     case 'u':
1332         monitor_printf(mon, "%u", val);
1333         break;
1334     default:
1335     case 'd':
1336         monitor_printf(mon, "%d", val);
1337         break;
1338     case 'c':
1339         monitor_printc(mon, val);
1340         break;
1341     }
1342 #else
1343     switch(format) {
1344     case 'o':
1345         monitor_printf(mon, "%#" PRIo64, val);
1346         break;
1347     case 'x':
1348         monitor_printf(mon, "%#" PRIx64, val);
1349         break;
1350     case 'u':
1351         monitor_printf(mon, "%" PRIu64, val);
1352         break;
1353     default:
1354     case 'd':
1355         monitor_printf(mon, "%" PRId64, val);
1356         break;
1357     case 'c':
1358         monitor_printc(mon, val);
1359         break;
1360     }
1361 #endif
1362     monitor_printf(mon, "\n");
1363 }
1364
1365 static int do_memory_save(Monitor *mon, const QDict *qdict, QObject **ret_data)
1366 {
1367     FILE *f;
1368     uint32_t size = qdict_get_int(qdict, "size");
1369     const char *filename = qdict_get_str(qdict, "filename");
1370     target_long addr = qdict_get_int(qdict, "val");
1371     uint32_t l;
1372     CPUState *env;
1373     uint8_t buf[1024];
1374     int ret = -1;
1375
1376     env = mon_get_cpu();
1377
1378     f = fopen(filename, "wb");
1379     if (!f) {
1380         qerror_report(QERR_OPEN_FILE_FAILED, filename);
1381         return -1;
1382     }
1383     while (size != 0) {
1384         l = sizeof(buf);
1385         if (l > size)
1386             l = size;
1387         cpu_memory_rw_debug(env, addr, buf, l, 0);
1388         if (fwrite(buf, 1, l, f) != l) {
1389             monitor_printf(mon, "fwrite() error in do_memory_save\n");
1390             goto exit;
1391         }
1392         addr += l;
1393         size -= l;
1394     }
1395
1396     ret = 0;
1397
1398 exit:
1399     fclose(f);
1400     return ret;
1401 }
1402
1403 static int do_physical_memory_save(Monitor *mon, const QDict *qdict,
1404                                     QObject **ret_data)
1405 {
1406     FILE *f;
1407     uint32_t l;
1408     uint8_t buf[1024];
1409     uint32_t size = qdict_get_int(qdict, "size");
1410     const char *filename = qdict_get_str(qdict, "filename");
1411     target_phys_addr_t addr = qdict_get_int(qdict, "val");
1412     int ret = -1;
1413
1414     f = fopen(filename, "wb");
1415     if (!f) {
1416         qerror_report(QERR_OPEN_FILE_FAILED, filename);
1417         return -1;
1418     }
1419     while (size != 0) {
1420         l = sizeof(buf);
1421         if (l > size)
1422             l = size;
1423         cpu_physical_memory_rw(addr, buf, l, 0);
1424         if (fwrite(buf, 1, l, f) != l) {
1425             monitor_printf(mon, "fwrite() error in do_physical_memory_save\n");
1426             goto exit;
1427         }
1428         fflush(f);
1429         addr += l;
1430         size -= l;
1431     }
1432
1433     ret = 0;
1434
1435 exit:
1436     fclose(f);
1437     return ret;
1438 }
1439
1440 static void do_sum(Monitor *mon, const QDict *qdict)
1441 {
1442     uint32_t addr;
1443     uint8_t buf[1];
1444     uint16_t sum;
1445     uint32_t start = qdict_get_int(qdict, "start");
1446     uint32_t size = qdict_get_int(qdict, "size");
1447
1448     sum = 0;
1449     for(addr = start; addr < (start + size); addr++) {
1450         cpu_physical_memory_rw(addr, buf, 1, 0);
1451         /* BSD sum algorithm ('sum' Unix command) */
1452         sum = (sum >> 1) | (sum << 15);
1453         sum += buf[0];
1454     }
1455     monitor_printf(mon, "%05d\n", sum);
1456 }
1457
1458 typedef struct {
1459     int keycode;
1460     const char *name;
1461 } KeyDef;
1462
1463 static const KeyDef key_defs[] = {
1464     { 0x2a, "shift" },
1465     { 0x36, "shift_r" },
1466
1467     { 0x38, "alt" },
1468     { 0xb8, "alt_r" },
1469     { 0x64, "altgr" },
1470     { 0xe4, "altgr_r" },
1471     { 0x1d, "ctrl" },
1472     { 0x9d, "ctrl_r" },
1473
1474     { 0xdd, "menu" },
1475
1476     { 0x01, "esc" },
1477
1478     { 0x02, "1" },
1479     { 0x03, "2" },
1480     { 0x04, "3" },
1481     { 0x05, "4" },
1482     { 0x06, "5" },
1483     { 0x07, "6" },
1484     { 0x08, "7" },
1485     { 0x09, "8" },
1486     { 0x0a, "9" },
1487     { 0x0b, "0" },
1488     { 0x0c, "minus" },
1489     { 0x0d, "equal" },
1490     { 0x0e, "backspace" },
1491
1492     { 0x0f, "tab" },
1493     { 0x10, "q" },
1494     { 0x11, "w" },
1495     { 0x12, "e" },
1496     { 0x13, "r" },
1497     { 0x14, "t" },
1498     { 0x15, "y" },
1499     { 0x16, "u" },
1500     { 0x17, "i" },
1501     { 0x18, "o" },
1502     { 0x19, "p" },
1503     { 0x1a, "bracket_left" },
1504     { 0x1b, "bracket_right" },
1505     { 0x1c, "ret" },
1506
1507     { 0x1e, "a" },
1508     { 0x1f, "s" },
1509     { 0x20, "d" },
1510     { 0x21, "f" },
1511     { 0x22, "g" },
1512     { 0x23, "h" },
1513     { 0x24, "j" },
1514     { 0x25, "k" },
1515     { 0x26, "l" },
1516     { 0x27, "semicolon" },
1517     { 0x28, "apostrophe" },
1518     { 0x29, "grave_accent" },
1519
1520     { 0x2b, "backslash" },
1521     { 0x2c, "z" },
1522     { 0x2d, "x" },
1523     { 0x2e, "c" },
1524     { 0x2f, "v" },
1525     { 0x30, "b" },
1526     { 0x31, "n" },
1527     { 0x32, "m" },
1528     { 0x33, "comma" },
1529     { 0x34, "dot" },
1530     { 0x35, "slash" },
1531
1532     { 0x37, "asterisk" },
1533
1534     { 0x39, "spc" },
1535     { 0x3a, "caps_lock" },
1536     { 0x3b, "f1" },
1537     { 0x3c, "f2" },
1538     { 0x3d, "f3" },
1539     { 0x3e, "f4" },
1540     { 0x3f, "f5" },
1541     { 0x40, "f6" },
1542     { 0x41, "f7" },
1543     { 0x42, "f8" },
1544     { 0x43, "f9" },
1545     { 0x44, "f10" },
1546     { 0x45, "num_lock" },
1547     { 0x46, "scroll_lock" },
1548
1549     { 0xb5, "kp_divide" },
1550     { 0x37, "kp_multiply" },
1551     { 0x4a, "kp_subtract" },
1552     { 0x4e, "kp_add" },
1553     { 0x9c, "kp_enter" },
1554     { 0x53, "kp_decimal" },
1555     { 0x54, "sysrq" },
1556
1557     { 0x52, "kp_0" },
1558     { 0x4f, "kp_1" },
1559     { 0x50, "kp_2" },
1560     { 0x51, "kp_3" },
1561     { 0x4b, "kp_4" },
1562     { 0x4c, "kp_5" },
1563     { 0x4d, "kp_6" },
1564     { 0x47, "kp_7" },
1565     { 0x48, "kp_8" },
1566     { 0x49, "kp_9" },
1567
1568     { 0x56, "<" },
1569
1570     { 0x57, "f11" },
1571     { 0x58, "f12" },
1572
1573     { 0xb7, "print" },
1574
1575     { 0xc7, "home" },
1576     { 0xc9, "pgup" },
1577     { 0xd1, "pgdn" },
1578     { 0xcf, "end" },
1579
1580     { 0xcb, "left" },
1581     { 0xc8, "up" },
1582     { 0xd0, "down" },
1583     { 0xcd, "right" },
1584
1585     { 0xd2, "insert" },
1586     { 0xd3, "delete" },
1587 #if defined(TARGET_SPARC) && !defined(TARGET_SPARC64)
1588     { 0xf0, "stop" },
1589     { 0xf1, "again" },
1590     { 0xf2, "props" },
1591     { 0xf3, "undo" },
1592     { 0xf4, "front" },
1593     { 0xf5, "copy" },
1594     { 0xf6, "open" },
1595     { 0xf7, "paste" },
1596     { 0xf8, "find" },
1597     { 0xf9, "cut" },
1598     { 0xfa, "lf" },
1599     { 0xfb, "help" },
1600     { 0xfc, "meta_l" },
1601     { 0xfd, "meta_r" },
1602     { 0xfe, "compose" },
1603 #endif
1604     { 0, NULL },
1605 };
1606
1607 static int get_keycode(const char *key)
1608 {
1609     const KeyDef *p;
1610     char *endp;
1611     int ret;
1612
1613     for(p = key_defs; p->name != NULL; p++) {
1614         if (!strcmp(key, p->name))
1615             return p->keycode;
1616     }
1617     if (strstart(key, "0x", NULL)) {
1618         ret = strtoul(key, &endp, 0);
1619         if (*endp == '\0' && ret >= 0x01 && ret <= 0xff)
1620             return ret;
1621     }
1622     return -1;
1623 }
1624
1625 #define MAX_KEYCODES 16
1626 static uint8_t keycodes[MAX_KEYCODES];
1627 static int nb_pending_keycodes;
1628 static QEMUTimer *key_timer;
1629
1630 static void release_keys(void *opaque)
1631 {
1632     int keycode;
1633
1634     while (nb_pending_keycodes > 0) {
1635         nb_pending_keycodes--;
1636         keycode = keycodes[nb_pending_keycodes];
1637         if (keycode & 0x80)
1638             kbd_put_keycode(0xe0);
1639         kbd_put_keycode(keycode | 0x80);
1640     }
1641 }
1642
1643 static void do_sendkey(Monitor *mon, const QDict *qdict)
1644 {
1645     char keyname_buf[16];
1646     char *separator;
1647     int keyname_len, keycode, i;
1648     const char *string = qdict_get_str(qdict, "string");
1649     int has_hold_time = qdict_haskey(qdict, "hold_time");
1650     int hold_time = qdict_get_try_int(qdict, "hold_time", -1);
1651
1652     if (nb_pending_keycodes > 0) {
1653         qemu_del_timer(key_timer);
1654         release_keys(NULL);
1655     }
1656     if (!has_hold_time)
1657         hold_time = 100;
1658     i = 0;
1659     while (1) {
1660         separator = strchr(string, '-');
1661         keyname_len = separator ? separator - string : strlen(string);
1662         if (keyname_len > 0) {
1663             pstrcpy(keyname_buf, sizeof(keyname_buf), string);
1664             if (keyname_len > sizeof(keyname_buf) - 1) {
1665                 monitor_printf(mon, "invalid key: '%s...'\n", keyname_buf);
1666                 return;
1667             }
1668             if (i == MAX_KEYCODES) {
1669                 monitor_printf(mon, "too many keys\n");
1670                 return;
1671             }
1672             keyname_buf[keyname_len] = 0;
1673             keycode = get_keycode(keyname_buf);
1674             if (keycode < 0) {
1675                 monitor_printf(mon, "unknown key: '%s'\n", keyname_buf);
1676                 return;
1677             }
1678             keycodes[i++] = keycode;
1679         }
1680         if (!separator)
1681             break;
1682         string = separator + 1;
1683     }
1684     nb_pending_keycodes = i;
1685     /* key down events */
1686     for (i = 0; i < nb_pending_keycodes; i++) {
1687         keycode = keycodes[i];
1688         if (keycode & 0x80)
1689             kbd_put_keycode(0xe0);
1690         kbd_put_keycode(keycode & 0x7f);
1691     }
1692     /* delayed key up events */
1693     qemu_mod_timer(key_timer, qemu_get_clock(vm_clock) +
1694                    muldiv64(get_ticks_per_sec(), hold_time, 1000));
1695 }
1696
1697 static int mouse_button_state;
1698
1699 static void do_mouse_move(Monitor *mon, const QDict *qdict)
1700 {
1701     int dx, dy, dz;
1702     const char *dx_str = qdict_get_str(qdict, "dx_str");
1703     const char *dy_str = qdict_get_str(qdict, "dy_str");
1704     const char *dz_str = qdict_get_try_str(qdict, "dz_str");
1705     dx = strtol(dx_str, NULL, 0);
1706     dy = strtol(dy_str, NULL, 0);
1707     dz = 0;
1708     if (dz_str)
1709         dz = strtol(dz_str, NULL, 0);
1710     kbd_mouse_event(dx, dy, dz, mouse_button_state);
1711 }
1712
1713 static void do_mouse_button(Monitor *mon, const QDict *qdict)
1714 {
1715     int button_state = qdict_get_int(qdict, "button_state");
1716     mouse_button_state = button_state;
1717     kbd_mouse_event(0, 0, 0, mouse_button_state);
1718 }
1719
1720 static void do_ioport_read(Monitor *mon, const QDict *qdict)
1721 {
1722     int size = qdict_get_int(qdict, "size");
1723     int addr = qdict_get_int(qdict, "addr");
1724     int has_index = qdict_haskey(qdict, "index");
1725     uint32_t val;
1726     int suffix;
1727
1728     if (has_index) {
1729         int index = qdict_get_int(qdict, "index");
1730         cpu_outb(addr & IOPORTS_MASK, index & 0xff);
1731         addr++;
1732     }
1733     addr &= 0xffff;
1734
1735     switch(size) {
1736     default:
1737     case 1:
1738         val = cpu_inb(addr);
1739         suffix = 'b';
1740         break;
1741     case 2:
1742         val = cpu_inw(addr);
1743         suffix = 'w';
1744         break;
1745     case 4:
1746         val = cpu_inl(addr);
1747         suffix = 'l';
1748         break;
1749     }
1750     monitor_printf(mon, "port%c[0x%04x] = %#0*x\n",
1751                    suffix, addr, size * 2, val);
1752 }
1753
1754 static void do_ioport_write(Monitor *mon, const QDict *qdict)
1755 {
1756     int size = qdict_get_int(qdict, "size");
1757     int addr = qdict_get_int(qdict, "addr");
1758     int val = qdict_get_int(qdict, "val");
1759
1760     addr &= IOPORTS_MASK;
1761
1762     switch (size) {
1763     default:
1764     case 1:
1765         cpu_outb(addr, val);
1766         break;
1767     case 2:
1768         cpu_outw(addr, val);
1769         break;
1770     case 4:
1771         cpu_outl(addr, val);
1772         break;
1773     }
1774 }
1775
1776 static void do_boot_set(Monitor *mon, const QDict *qdict)
1777 {
1778     int res;
1779     const char *bootdevice = qdict_get_str(qdict, "bootdevice");
1780
1781     res = qemu_boot_set(bootdevice);
1782     if (res == 0) {
1783         monitor_printf(mon, "boot device list now set to %s\n", bootdevice);
1784     } else if (res > 0) {
1785         monitor_printf(mon, "setting boot device list failed\n");
1786     } else {
1787         monitor_printf(mon, "no function defined to set boot device list for "
1788                        "this architecture\n");
1789     }
1790 }
1791
1792 /**
1793  * do_system_reset(): Issue a machine reset
1794  */
1795 static int do_system_reset(Monitor *mon, const QDict *qdict,
1796                            QObject **ret_data)
1797 {
1798     qemu_system_reset_request();
1799     return 0;
1800 }
1801
1802 /**
1803  * do_system_powerdown(): Issue a machine powerdown
1804  */
1805 static int do_system_powerdown(Monitor *mon, const QDict *qdict,
1806                                QObject **ret_data)
1807 {
1808     qemu_system_powerdown_request();
1809     return 0;
1810 }
1811
1812 #if defined(TARGET_I386)
1813 static void print_pte(Monitor *mon, uint32_t addr, uint32_t pte, uint32_t mask)
1814 {
1815     monitor_printf(mon, "%08x: %08x %c%c%c%c%c%c%c%c\n",
1816                    addr,
1817                    pte & mask,
1818                    pte & PG_GLOBAL_MASK ? 'G' : '-',
1819                    pte & PG_PSE_MASK ? 'P' : '-',
1820                    pte & PG_DIRTY_MASK ? 'D' : '-',
1821                    pte & PG_ACCESSED_MASK ? 'A' : '-',
1822                    pte & PG_PCD_MASK ? 'C' : '-',
1823                    pte & PG_PWT_MASK ? 'T' : '-',
1824                    pte & PG_USER_MASK ? 'U' : '-',
1825                    pte & PG_RW_MASK ? 'W' : '-');
1826 }
1827
1828 static void tlb_info(Monitor *mon)
1829 {
1830     CPUState *env;
1831     int l1, l2;
1832     uint32_t pgd, pde, pte;
1833
1834     env = mon_get_cpu();
1835
1836     if (!(env->cr[0] & CR0_PG_MASK)) {
1837         monitor_printf(mon, "PG disabled\n");
1838         return;
1839     }
1840     pgd = env->cr[3] & ~0xfff;
1841     for(l1 = 0; l1 < 1024; l1++) {
1842         cpu_physical_memory_read(pgd + l1 * 4, (uint8_t *)&pde, 4);
1843         pde = le32_to_cpu(pde);
1844         if (pde & PG_PRESENT_MASK) {
1845             if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
1846                 print_pte(mon, (l1 << 22), pde, ~((1 << 20) - 1));
1847             } else {
1848                 for(l2 = 0; l2 < 1024; l2++) {
1849                     cpu_physical_memory_read((pde & ~0xfff) + l2 * 4,
1850                                              (uint8_t *)&pte, 4);
1851                     pte = le32_to_cpu(pte);
1852                     if (pte & PG_PRESENT_MASK) {
1853                         print_pte(mon, (l1 << 22) + (l2 << 12),
1854                                   pte & ~PG_PSE_MASK,
1855                                   ~0xfff);
1856                     }
1857                 }
1858             }
1859         }
1860     }
1861 }
1862
1863 static void mem_print(Monitor *mon, uint32_t *pstart, int *plast_prot,
1864                       uint32_t end, int prot)
1865 {
1866     int prot1;
1867     prot1 = *plast_prot;
1868     if (prot != prot1) {
1869         if (*pstart != -1) {
1870             monitor_printf(mon, "%08x-%08x %08x %c%c%c\n",
1871                            *pstart, end, end - *pstart,
1872                            prot1 & PG_USER_MASK ? 'u' : '-',
1873                            'r',
1874                            prot1 & PG_RW_MASK ? 'w' : '-');
1875         }
1876         if (prot != 0)
1877             *pstart = end;
1878         else
1879             *pstart = -1;
1880         *plast_prot = prot;
1881     }
1882 }
1883
1884 static void mem_info(Monitor *mon)
1885 {
1886     CPUState *env;
1887     int l1, l2, prot, last_prot;
1888     uint32_t pgd, pde, pte, start, end;
1889
1890     env = mon_get_cpu();
1891
1892     if (!(env->cr[0] & CR0_PG_MASK)) {
1893         monitor_printf(mon, "PG disabled\n");
1894         return;
1895     }
1896     pgd = env->cr[3] & ~0xfff;
1897     last_prot = 0;
1898     start = -1;
1899     for(l1 = 0; l1 < 1024; l1++) {
1900         cpu_physical_memory_read(pgd + l1 * 4, (uint8_t *)&pde, 4);
1901         pde = le32_to_cpu(pde);
1902         end = l1 << 22;
1903         if (pde & PG_PRESENT_MASK) {
1904             if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
1905                 prot = pde & (PG_USER_MASK | PG_RW_MASK | PG_PRESENT_MASK);
1906                 mem_print(mon, &start, &last_prot, end, prot);
1907             } else {
1908                 for(l2 = 0; l2 < 1024; l2++) {
1909                     cpu_physical_memory_read((pde & ~0xfff) + l2 * 4,
1910                                              (uint8_t *)&pte, 4);
1911                     pte = le32_to_cpu(pte);
1912                     end = (l1 << 22) + (l2 << 12);
1913                     if (pte & PG_PRESENT_MASK) {
1914                         prot = pte & (PG_USER_MASK | PG_RW_MASK | PG_PRESENT_MASK);
1915                     } else {
1916                         prot = 0;
1917                     }
1918                     mem_print(mon, &start, &last_prot, end, prot);
1919                 }
1920             }
1921         } else {
1922             prot = 0;
1923             mem_print(mon, &start, &last_prot, end, prot);
1924         }
1925     }
1926 }
1927 #endif
1928
1929 #if defined(TARGET_SH4)
1930
1931 static void print_tlb(Monitor *mon, int idx, tlb_t *tlb)
1932 {
1933     monitor_printf(mon, " tlb%i:\t"
1934                    "asid=%hhu vpn=%x\tppn=%x\tsz=%hhu size=%u\t"
1935                    "v=%hhu shared=%hhu cached=%hhu prot=%hhu "
1936                    "dirty=%hhu writethrough=%hhu\n",
1937                    idx,
1938                    tlb->asid, tlb->vpn, tlb->ppn, tlb->sz, tlb->size,
1939                    tlb->v, tlb->sh, tlb->c, tlb->pr,
1940                    tlb->d, tlb->wt);
1941 }
1942
1943 static void tlb_info(Monitor *mon)
1944 {
1945     CPUState *env = mon_get_cpu();
1946     int i;
1947
1948     monitor_printf (mon, "ITLB:\n");
1949     for (i = 0 ; i < ITLB_SIZE ; i++)
1950         print_tlb (mon, i, &env->itlb[i]);
1951     monitor_printf (mon, "UTLB:\n");
1952     for (i = 0 ; i < UTLB_SIZE ; i++)
1953         print_tlb (mon, i, &env->utlb[i]);
1954 }
1955
1956 #endif
1957
1958 static void do_info_kvm_print(Monitor *mon, const QObject *data)
1959 {
1960     QDict *qdict;
1961
1962     qdict = qobject_to_qdict(data);
1963
1964     monitor_printf(mon, "kvm support: ");
1965     if (qdict_get_bool(qdict, "present")) {
1966         monitor_printf(mon, "%s\n", qdict_get_bool(qdict, "enabled") ?
1967                                     "enabled" : "disabled");
1968     } else {
1969         monitor_printf(mon, "not compiled\n");
1970     }
1971 }
1972
1973 static void do_info_kvm(Monitor *mon, QObject **ret_data)
1974 {
1975 #ifdef CONFIG_KVM
1976     *ret_data = qobject_from_jsonf("{ 'enabled': %i, 'present': true }",
1977                                    kvm_enabled());
1978 #else
1979     *ret_data = qobject_from_jsonf("{ 'enabled': false, 'present': false }");
1980 #endif
1981 }
1982
1983 static void do_info_numa(Monitor *mon)
1984 {
1985     int i;
1986     CPUState *env;
1987
1988     monitor_printf(mon, "%d nodes\n", nb_numa_nodes);
1989     for (i = 0; i < nb_numa_nodes; i++) {
1990         monitor_printf(mon, "node %d cpus:", i);
1991         for (env = first_cpu; env != NULL; env = env->next_cpu) {
1992             if (env->numa_node == i) {
1993                 monitor_printf(mon, " %d", env->cpu_index);
1994             }
1995         }
1996         monitor_printf(mon, "\n");
1997         monitor_printf(mon, "node %d size: %" PRId64 " MB\n", i,
1998             node_mem[i] >> 20);
1999     }
2000 }
2001
2002 #ifdef CONFIG_PROFILER
2003
2004 int64_t qemu_time;
2005 int64_t dev_time;
2006
2007 static void do_info_profile(Monitor *mon)
2008 {
2009     int64_t total;
2010     total = qemu_time;
2011     if (total == 0)
2012         total = 1;
2013     monitor_printf(mon, "async time  %" PRId64 " (%0.3f)\n",
2014                    dev_time, dev_time / (double)get_ticks_per_sec());
2015     monitor_printf(mon, "qemu time   %" PRId64 " (%0.3f)\n",
2016                    qemu_time, qemu_time / (double)get_ticks_per_sec());
2017     qemu_time = 0;
2018     dev_time = 0;
2019 }
2020 #else
2021 static void do_info_profile(Monitor *mon)
2022 {
2023     monitor_printf(mon, "Internal profiler not compiled\n");
2024 }
2025 #endif
2026
2027 /* Capture support */
2028 static QLIST_HEAD (capture_list_head, CaptureState) capture_head;
2029
2030 static void do_info_capture(Monitor *mon)
2031 {
2032     int i;
2033     CaptureState *s;
2034
2035     for (s = capture_head.lh_first, i = 0; s; s = s->entries.le_next, ++i) {
2036         monitor_printf(mon, "[%d]: ", i);
2037         s->ops.info (s->opaque);
2038     }
2039 }
2040
2041 #ifdef HAS_AUDIO
2042 static void do_stop_capture(Monitor *mon, const QDict *qdict)
2043 {
2044     int i;
2045     int n = qdict_get_int(qdict, "n");
2046     CaptureState *s;
2047
2048     for (s = capture_head.lh_first, i = 0; s; s = s->entries.le_next, ++i) {
2049         if (i == n) {
2050             s->ops.destroy (s->opaque);
2051             QLIST_REMOVE (s, entries);
2052             qemu_free (s);
2053             return;
2054         }
2055     }
2056 }
2057
2058 static void do_wav_capture(Monitor *mon, const QDict *qdict)
2059 {
2060     const char *path = qdict_get_str(qdict, "path");
2061     int has_freq = qdict_haskey(qdict, "freq");
2062     int freq = qdict_get_try_int(qdict, "freq", -1);
2063     int has_bits = qdict_haskey(qdict, "bits");
2064     int bits = qdict_get_try_int(qdict, "bits", -1);
2065     int has_channels = qdict_haskey(qdict, "nchannels");
2066     int nchannels = qdict_get_try_int(qdict, "nchannels", -1);
2067     CaptureState *s;
2068
2069     s = qemu_mallocz (sizeof (*s));
2070
2071     freq = has_freq ? freq : 44100;
2072     bits = has_bits ? bits : 16;
2073     nchannels = has_channels ? nchannels : 2;
2074
2075     if (wav_start_capture (s, path, freq, bits, nchannels)) {
2076         monitor_printf(mon, "Faied to add wave capture\n");
2077         qemu_free (s);
2078     }
2079     QLIST_INSERT_HEAD (&capture_head, s, entries);
2080 }
2081 #endif
2082
2083 #if defined(TARGET_I386)
2084 static void do_inject_nmi(Monitor *mon, const QDict *qdict)
2085 {
2086     CPUState *env;
2087     int cpu_index = qdict_get_int(qdict, "cpu_index");
2088
2089     for (env = first_cpu; env != NULL; env = env->next_cpu)
2090         if (env->cpu_index == cpu_index) {
2091             cpu_interrupt(env, CPU_INTERRUPT_NMI);
2092             break;
2093         }
2094 }
2095 #endif
2096
2097 static void do_info_status_print(Monitor *mon, const QObject *data)
2098 {
2099     QDict *qdict;
2100
2101     qdict = qobject_to_qdict(data);
2102
2103     monitor_printf(mon, "VM status: ");
2104     if (qdict_get_bool(qdict, "running")) {
2105         monitor_printf(mon, "running");
2106         if (qdict_get_bool(qdict, "singlestep")) {
2107             monitor_printf(mon, " (single step mode)");
2108         }
2109     } else {
2110         monitor_printf(mon, "paused");
2111     }
2112
2113     monitor_printf(mon, "\n");
2114 }
2115
2116 static void do_info_status(Monitor *mon, QObject **ret_data)
2117 {
2118     *ret_data = qobject_from_jsonf("{ 'running': %i, 'singlestep': %i }",
2119                                     vm_running, singlestep);
2120 }
2121
2122 static qemu_acl *find_acl(Monitor *mon, const char *name)
2123 {
2124     qemu_acl *acl = qemu_acl_find(name);
2125
2126     if (!acl) {
2127         monitor_printf(mon, "acl: unknown list '%s'\n", name);
2128     }
2129     return acl;
2130 }
2131
2132 static void do_acl_show(Monitor *mon, const QDict *qdict)
2133 {
2134     const char *aclname = qdict_get_str(qdict, "aclname");
2135     qemu_acl *acl = find_acl(mon, aclname);
2136     qemu_acl_entry *entry;
2137     int i = 0;
2138
2139     if (acl) {
2140         monitor_printf(mon, "policy: %s\n",
2141                        acl->defaultDeny ? "deny" : "allow");
2142         QTAILQ_FOREACH(entry, &acl->entries, next) {
2143             i++;
2144             monitor_printf(mon, "%d: %s %s\n", i,
2145                            entry->deny ? "deny" : "allow", entry->match);
2146         }
2147     }
2148 }
2149
2150 static void do_acl_reset(Monitor *mon, const QDict *qdict)
2151 {
2152     const char *aclname = qdict_get_str(qdict, "aclname");
2153     qemu_acl *acl = find_acl(mon, aclname);
2154
2155     if (acl) {
2156         qemu_acl_reset(acl);
2157         monitor_printf(mon, "acl: removed all rules\n");
2158     }
2159 }
2160
2161 static void do_acl_policy(Monitor *mon, const QDict *qdict)
2162 {
2163     const char *aclname = qdict_get_str(qdict, "aclname");
2164     const char *policy = qdict_get_str(qdict, "policy");
2165     qemu_acl *acl = find_acl(mon, aclname);
2166
2167     if (acl) {
2168         if (strcmp(policy, "allow") == 0) {
2169             acl->defaultDeny = 0;
2170             monitor_printf(mon, "acl: policy set to 'allow'\n");
2171         } else if (strcmp(policy, "deny") == 0) {
2172             acl->defaultDeny = 1;
2173             monitor_printf(mon, "acl: policy set to 'deny'\n");
2174         } else {
2175             monitor_printf(mon, "acl: unknown policy '%s', "
2176                            "expected 'deny' or 'allow'\n", policy);
2177         }
2178     }
2179 }
2180
2181 static void do_acl_add(Monitor *mon, const QDict *qdict)
2182 {
2183     const char *aclname = qdict_get_str(qdict, "aclname");
2184     const char *match = qdict_get_str(qdict, "match");
2185     const char *policy = qdict_get_str(qdict, "policy");
2186     int has_index = qdict_haskey(qdict, "index");
2187     int index = qdict_get_try_int(qdict, "index", -1);
2188     qemu_acl *acl = find_acl(mon, aclname);
2189     int deny, ret;
2190
2191     if (acl) {
2192         if (strcmp(policy, "allow") == 0) {
2193             deny = 0;
2194         } else if (strcmp(policy, "deny") == 0) {
2195             deny = 1;
2196         } else {
2197             monitor_printf(mon, "acl: unknown policy '%s', "
2198                            "expected 'deny' or 'allow'\n", policy);
2199             return;
2200         }
2201         if (has_index)
2202             ret = qemu_acl_insert(acl, deny, match, index);
2203         else
2204             ret = qemu_acl_append(acl, deny, match);
2205         if (ret < 0)
2206             monitor_printf(mon, "acl: unable to add acl entry\n");
2207         else
2208             monitor_printf(mon, "acl: added rule at position %d\n", ret);
2209     }
2210 }
2211
2212 static void do_acl_remove(Monitor *mon, const QDict *qdict)
2213 {
2214     const char *aclname = qdict_get_str(qdict, "aclname");
2215     const char *match = qdict_get_str(qdict, "match");
2216     qemu_acl *acl = find_acl(mon, aclname);
2217     int ret;
2218
2219     if (acl) {
2220         ret = qemu_acl_remove(acl, match);
2221         if (ret < 0)
2222             monitor_printf(mon, "acl: no matching acl entry\n");
2223         else
2224             monitor_printf(mon, "acl: removed rule at position %d\n", ret);
2225     }
2226 }
2227
2228 #if defined(TARGET_I386)
2229 static void do_inject_mce(Monitor *mon, const QDict *qdict)
2230 {
2231     CPUState *cenv;
2232     int cpu_index = qdict_get_int(qdict, "cpu_index");
2233     int bank = qdict_get_int(qdict, "bank");
2234     uint64_t status = qdict_get_int(qdict, "status");
2235     uint64_t mcg_status = qdict_get_int(qdict, "mcg_status");
2236     uint64_t addr = qdict_get_int(qdict, "addr");
2237     uint64_t misc = qdict_get_int(qdict, "misc");
2238
2239     for (cenv = first_cpu; cenv != NULL; cenv = cenv->next_cpu)
2240         if (cenv->cpu_index == cpu_index && cenv->mcg_cap) {
2241             cpu_inject_x86_mce(cenv, bank, status, mcg_status, addr, misc);
2242             break;
2243         }
2244 }
2245 #endif
2246
2247 static int do_getfd(Monitor *mon, const QDict *qdict, QObject **ret_data)
2248 {
2249     const char *fdname = qdict_get_str(qdict, "fdname");
2250     mon_fd_t *monfd;
2251     int fd;
2252
2253     fd = qemu_chr_get_msgfd(mon->chr);
2254     if (fd == -1) {
2255         qerror_report(QERR_FD_NOT_SUPPLIED);
2256         return -1;
2257     }
2258
2259     if (qemu_isdigit(fdname[0])) {
2260         qerror_report(QERR_INVALID_PARAMETER_VALUE, "fdname",
2261                       "a name not starting with a digit");
2262         return -1;
2263     }
2264
2265     QLIST_FOREACH(monfd, &mon->fds, next) {
2266         if (strcmp(monfd->name, fdname) != 0) {
2267             continue;
2268         }
2269
2270         close(monfd->fd);
2271         monfd->fd = fd;
2272         return 0;
2273     }
2274
2275     monfd = qemu_mallocz(sizeof(mon_fd_t));
2276     monfd->name = qemu_strdup(fdname);
2277     monfd->fd = fd;
2278
2279     QLIST_INSERT_HEAD(&mon->fds, monfd, next);
2280     return 0;
2281 }
2282
2283 static int do_closefd(Monitor *mon, const QDict *qdict, QObject **ret_data)
2284 {
2285     const char *fdname = qdict_get_str(qdict, "fdname");
2286     mon_fd_t *monfd;
2287
2288     QLIST_FOREACH(monfd, &mon->fds, next) {
2289         if (strcmp(monfd->name, fdname) != 0) {
2290             continue;
2291         }
2292
2293         QLIST_REMOVE(monfd, next);
2294         close(monfd->fd);
2295         qemu_free(monfd->name);
2296         qemu_free(monfd);
2297         return 0;
2298     }
2299
2300     qerror_report(QERR_FD_NOT_FOUND, fdname);
2301     return -1;
2302 }
2303
2304 static void do_loadvm(Monitor *mon, const QDict *qdict)
2305 {
2306     int saved_vm_running  = vm_running;
2307     const char *name = qdict_get_str(qdict, "name");
2308
2309     vm_stop(0);
2310
2311     if (load_vmstate(name) == 0 && saved_vm_running) {
2312         vm_start();
2313     }
2314 }
2315
2316 int monitor_get_fd(Monitor *mon, const char *fdname)
2317 {
2318     mon_fd_t *monfd;
2319
2320     QLIST_FOREACH(monfd, &mon->fds, next) {
2321         int fd;
2322
2323         if (strcmp(monfd->name, fdname) != 0) {
2324             continue;
2325         }
2326
2327         fd = monfd->fd;
2328
2329         /* caller takes ownership of fd */
2330         QLIST_REMOVE(monfd, next);
2331         qemu_free(monfd->name);
2332         qemu_free(monfd);
2333
2334         return fd;
2335     }
2336
2337     return -1;
2338 }
2339
2340 static const mon_cmd_t mon_cmds[] = {
2341 #include "hmp-commands.h"
2342     { NULL, NULL, },
2343 };
2344
2345 /* Please update hmp-commands.hx when adding or changing commands */
2346 static const mon_cmd_t info_cmds[] = {
2347     {
2348         .name       = "version",
2349         .args_type  = "",
2350         .params     = "",
2351         .help       = "show the version of QEMU",
2352         .user_print = do_info_version_print,
2353         .mhandler.info_new = do_info_version,
2354     },
2355     {
2356         .name       = "network",
2357         .args_type  = "",
2358         .params     = "",
2359         .help       = "show the network state",
2360         .mhandler.info = do_info_network,
2361     },
2362     {
2363         .name       = "chardev",
2364         .args_type  = "",
2365         .params     = "",
2366         .help       = "show the character devices",
2367         .user_print = qemu_chr_info_print,
2368         .mhandler.info_new = qemu_chr_info,
2369     },
2370     {
2371         .name       = "block",
2372         .args_type  = "",
2373         .params     = "",
2374         .help       = "show the block devices",
2375         .user_print = bdrv_info_print,
2376         .mhandler.info_new = bdrv_info,
2377     },
2378     {
2379         .name       = "blockstats",
2380         .args_type  = "",
2381         .params     = "",
2382         .help       = "show block device statistics",
2383         .user_print = bdrv_stats_print,
2384         .mhandler.info_new = bdrv_info_stats,
2385     },
2386     {
2387         .name       = "registers",
2388         .args_type  = "",
2389         .params     = "",
2390         .help       = "show the cpu registers",
2391         .mhandler.info = do_info_registers,
2392     },
2393     {
2394         .name       = "cpus",
2395         .args_type  = "",
2396         .params     = "",
2397         .help       = "show infos for each CPU",
2398         .user_print = monitor_print_cpus,
2399         .mhandler.info_new = do_info_cpus,
2400     },
2401     {
2402         .name       = "history",
2403         .args_type  = "",
2404         .params     = "",
2405         .help       = "show the command line history",
2406         .mhandler.info = do_info_history,
2407     },
2408     {
2409         .name       = "irq",
2410         .args_type  = "",
2411         .params     = "",
2412         .help       = "show the interrupts statistics (if available)",
2413         .mhandler.info = irq_info,
2414     },
2415     {
2416         .name       = "pic",
2417         .args_type  = "",
2418         .params     = "",
2419         .help       = "show i8259 (PIC) state",
2420         .mhandler.info = pic_info,
2421     },
2422     {
2423         .name       = "pci",
2424         .args_type  = "",
2425         .params     = "",
2426         .help       = "show PCI info",
2427         .user_print = do_pci_info_print,
2428         .mhandler.info_new = do_pci_info,
2429     },
2430 #if defined(TARGET_I386) || defined(TARGET_SH4)
2431     {
2432         .name       = "tlb",
2433         .args_type  = "",
2434         .params     = "",
2435         .help       = "show virtual to physical memory mappings",
2436         .mhandler.info = tlb_info,
2437     },
2438 #endif
2439 #if defined(TARGET_I386)
2440     {
2441         .name       = "mem",
2442         .args_type  = "",
2443         .params     = "",
2444         .help       = "show the active virtual memory mappings",
2445         .mhandler.info = mem_info,
2446     },
2447 #endif
2448     {
2449         .name       = "jit",
2450         .args_type  = "",
2451         .params     = "",
2452         .help       = "show dynamic compiler info",
2453         .mhandler.info = do_info_jit,
2454     },
2455     {
2456         .name       = "kvm",
2457         .args_type  = "",
2458         .params     = "",
2459         .help       = "show KVM information",
2460         .user_print = do_info_kvm_print,
2461         .mhandler.info_new = do_info_kvm,
2462     },
2463     {
2464         .name       = "numa",
2465         .args_type  = "",
2466         .params     = "",
2467         .help       = "show NUMA information",
2468         .mhandler.info = do_info_numa,
2469     },
2470     {
2471         .name       = "usb",
2472         .args_type  = "",
2473         .params     = "",
2474         .help       = "show guest USB devices",
2475         .mhandler.info = usb_info,
2476     },
2477     {
2478         .name       = "usbhost",
2479         .args_type  = "",
2480         .params     = "",
2481         .help       = "show host USB devices",
2482         .mhandler.info = usb_host_info,
2483     },
2484     {
2485         .name       = "profile",
2486         .args_type  = "",
2487         .params     = "",
2488         .help       = "show profiling information",
2489         .mhandler.info = do_info_profile,
2490     },
2491     {
2492         .name       = "capture",
2493         .args_type  = "",
2494         .params     = "",
2495         .help       = "show capture information",
2496         .mhandler.info = do_info_capture,
2497     },
2498     {
2499         .name       = "snapshots",
2500         .args_type  = "",
2501         .params     = "",
2502         .help       = "show the currently saved VM snapshots",
2503         .mhandler.info = do_info_snapshots,
2504     },
2505     {
2506         .name       = "status",
2507         .args_type  = "",
2508         .params     = "",
2509         .help       = "show the current VM status (running|paused)",
2510         .user_print = do_info_status_print,
2511         .mhandler.info_new = do_info_status,
2512     },
2513     {
2514         .name       = "pcmcia",
2515         .args_type  = "",
2516         .params     = "",
2517         .help       = "show guest PCMCIA status",
2518         .mhandler.info = pcmcia_info,
2519     },
2520     {
2521         .name       = "mice",
2522         .args_type  = "",
2523         .params     = "",
2524         .help       = "show which guest mouse is receiving events",
2525         .user_print = do_info_mice_print,
2526         .mhandler.info_new = do_info_mice,
2527     },
2528     {
2529         .name       = "vnc",
2530         .args_type  = "",
2531         .params     = "",
2532         .help       = "show the vnc server status",
2533         .user_print = do_info_vnc_print,
2534         .mhandler.info_new = do_info_vnc,
2535     },
2536     {
2537         .name       = "name",
2538         .args_type  = "",
2539         .params     = "",
2540         .help       = "show the current VM name",
2541         .user_print = do_info_name_print,
2542         .mhandler.info_new = do_info_name,
2543     },
2544     {
2545         .name       = "uuid",
2546         .args_type  = "",
2547         .params     = "",
2548         .help       = "show the current VM UUID",
2549         .user_print = do_info_uuid_print,
2550         .mhandler.info_new = do_info_uuid,
2551     },
2552 #if defined(TARGET_PPC)
2553     {
2554         .name       = "cpustats",
2555         .args_type  = "",
2556         .params     = "",
2557         .help       = "show CPU statistics",
2558         .mhandler.info = do_info_cpu_stats,
2559     },
2560 #endif
2561 #if defined(CONFIG_SLIRP)
2562     {
2563         .name       = "usernet",
2564         .args_type  = "",
2565         .params     = "",
2566         .help       = "show user network stack connection states",
2567         .mhandler.info = do_info_usernet,
2568     },
2569 #endif
2570     {
2571         .name       = "migrate",
2572         .args_type  = "",
2573         .params     = "",
2574         .help       = "show migration status",
2575         .user_print = do_info_migrate_print,
2576         .mhandler.info_new = do_info_migrate,
2577     },
2578     {
2579         .name       = "balloon",
2580         .args_type  = "",
2581         .params     = "",
2582         .help       = "show balloon information",
2583         .user_print = monitor_print_balloon,
2584         .mhandler.info_async = do_info_balloon,
2585         .flags      = MONITOR_CMD_ASYNC,
2586     },
2587     {
2588         .name       = "qtree",
2589         .args_type  = "",
2590         .params     = "",
2591         .help       = "show device tree",
2592         .mhandler.info = do_info_qtree,
2593     },
2594     {
2595         .name       = "qdm",
2596         .args_type  = "",
2597         .params     = "",
2598         .help       = "show qdev device model list",
2599         .mhandler.info = do_info_qdm,
2600     },
2601     {
2602         .name       = "roms",
2603         .args_type  = "",
2604         .params     = "",
2605         .help       = "show roms",
2606         .mhandler.info = do_info_roms,
2607     },
2608 #if defined(CONFIG_SIMPLE_TRACE)
2609     {
2610         .name       = "trace",
2611         .args_type  = "",
2612         .params     = "",
2613         .help       = "show current contents of trace buffer",
2614         .mhandler.info = do_info_trace,
2615     },
2616     {
2617         .name       = "trace-events",
2618         .args_type  = "",
2619         .params     = "",
2620         .help       = "show available trace-events & their state",
2621         .mhandler.info = do_info_trace_events,
2622     },
2623 #endif
2624     {
2625         .name       = NULL,
2626     },
2627 };
2628
2629 static const mon_cmd_t qmp_cmds[] = {
2630 #include "qmp-commands.h"
2631     { /* NULL */ },
2632 };
2633
2634 static const mon_cmd_t qmp_query_cmds[] = {
2635     {
2636         .name       = "version",
2637         .args_type  = "",
2638         .params     = "",
2639         .help       = "show the version of QEMU",
2640         .user_print = do_info_version_print,
2641         .mhandler.info_new = do_info_version,
2642     },
2643     {
2644         .name       = "commands",
2645         .args_type  = "",
2646         .params     = "",
2647         .help       = "list QMP available commands",
2648         .user_print = monitor_user_noop,
2649         .mhandler.info_new = do_info_commands,
2650     },
2651     {
2652         .name       = "chardev",
2653         .args_type  = "",
2654         .params     = "",
2655         .help       = "show the character devices",
2656         .user_print = qemu_chr_info_print,
2657         .mhandler.info_new = qemu_chr_info,
2658     },
2659     {
2660         .name       = "block",
2661         .args_type  = "",
2662         .params     = "",
2663         .help       = "show the block devices",
2664         .user_print = bdrv_info_print,
2665         .mhandler.info_new = bdrv_info,
2666     },
2667     {
2668         .name       = "blockstats",
2669         .args_type  = "",
2670         .params     = "",
2671         .help       = "show block device statistics",
2672         .user_print = bdrv_stats_print,
2673         .mhandler.info_new = bdrv_info_stats,
2674     },
2675     {
2676         .name       = "cpus",
2677         .args_type  = "",
2678         .params     = "",
2679         .help       = "show infos for each CPU",
2680         .user_print = monitor_print_cpus,
2681         .mhandler.info_new = do_info_cpus,
2682     },
2683     {
2684         .name       = "pci",
2685         .args_type  = "",
2686         .params     = "",
2687         .help       = "show PCI info",
2688         .user_print = do_pci_info_print,
2689         .mhandler.info_new = do_pci_info,
2690     },
2691     {
2692         .name       = "kvm",
2693         .args_type  = "",
2694         .params     = "",
2695         .help       = "show KVM information",
2696         .user_print = do_info_kvm_print,
2697         .mhandler.info_new = do_info_kvm,
2698     },
2699     {
2700         .name       = "status",
2701         .args_type  = "",
2702         .params     = "",
2703         .help       = "show the current VM status (running|paused)",
2704         .user_print = do_info_status_print,
2705         .mhandler.info_new = do_info_status,
2706     },
2707     {
2708         .name       = "mice",
2709         .args_type  = "",
2710         .params     = "",
2711         .help       = "show which guest mouse is receiving events",
2712         .user_print = do_info_mice_print,
2713         .mhandler.info_new = do_info_mice,
2714     },
2715     {
2716         .name       = "vnc",
2717         .args_type  = "",
2718         .params     = "",
2719         .help       = "show the vnc server status",
2720         .user_print = do_info_vnc_print,
2721         .mhandler.info_new = do_info_vnc,
2722     },
2723     {
2724         .name       = "name",
2725         .args_type  = "",
2726         .params     = "",
2727         .help       = "show the current VM name",
2728         .user_print = do_info_name_print,
2729         .mhandler.info_new = do_info_name,
2730     },
2731     {
2732         .name       = "uuid",
2733         .args_type  = "",
2734         .params     = "",
2735         .help       = "show the current VM UUID",
2736         .user_print = do_info_uuid_print,
2737         .mhandler.info_new = do_info_uuid,
2738     },
2739     {
2740         .name       = "migrate",
2741         .args_type  = "",
2742         .params     = "",
2743         .help       = "show migration status",
2744         .user_print = do_info_migrate_print,
2745         .mhandler.info_new = do_info_migrate,
2746     },
2747     {
2748         .name       = "balloon",
2749         .args_type  = "",
2750         .params     = "",
2751         .help       = "show balloon information",
2752         .user_print = monitor_print_balloon,
2753         .mhandler.info_async = do_info_balloon,
2754         .flags      = MONITOR_CMD_ASYNC,
2755     },
2756     { /* NULL */ },
2757 };
2758
2759 /*******************************************************************/
2760
2761 static const char *pch;
2762 static jmp_buf expr_env;
2763
2764 #define MD_TLONG 0
2765 #define MD_I32   1
2766
2767 typedef struct MonitorDef {
2768     const char *name;
2769     int offset;
2770     target_long (*get_value)(const struct MonitorDef *md, int val);
2771     int type;
2772 } MonitorDef;
2773
2774 #if defined(TARGET_I386)
2775 static target_long monitor_get_pc (const struct MonitorDef *md, int val)
2776 {
2777     CPUState *env = mon_get_cpu();
2778     return env->eip + env->segs[R_CS].base;
2779 }
2780 #endif
2781
2782 #if defined(TARGET_PPC)
2783 static target_long monitor_get_ccr (const struct MonitorDef *md, int val)
2784 {
2785     CPUState *env = mon_get_cpu();
2786     unsigned int u;
2787     int i;
2788
2789     u = 0;
2790     for (i = 0; i < 8; i++)
2791         u |= env->crf[i] << (32 - (4 * i));
2792
2793     return u;
2794 }
2795
2796 static target_long monitor_get_msr (const struct MonitorDef *md, int val)
2797 {
2798     CPUState *env = mon_get_cpu();
2799     return env->msr;
2800 }
2801
2802 static target_long monitor_get_xer (const struct MonitorDef *md, int val)
2803 {
2804     CPUState *env = mon_get_cpu();
2805     return env->xer;
2806 }
2807
2808 static target_long monitor_get_decr (const struct MonitorDef *md, int val)
2809 {
2810     CPUState *env = mon_get_cpu();
2811     return cpu_ppc_load_decr(env);
2812 }
2813
2814 static target_long monitor_get_tbu (const struct MonitorDef *md, int val)
2815 {
2816     CPUState *env = mon_get_cpu();
2817     return cpu_ppc_load_tbu(env);
2818 }
2819
2820 static target_long monitor_get_tbl (const struct MonitorDef *md, int val)
2821 {
2822     CPUState *env = mon_get_cpu();
2823     return cpu_ppc_load_tbl(env);
2824 }
2825 #endif
2826
2827 #if defined(TARGET_SPARC)
2828 #ifndef TARGET_SPARC64
2829 static target_long monitor_get_psr (const struct MonitorDef *md, int val)
2830 {
2831     CPUState *env = mon_get_cpu();
2832
2833     return cpu_get_psr(env);
2834 }
2835 #endif
2836
2837 static target_long monitor_get_reg(const struct MonitorDef *md, int val)
2838 {
2839     CPUState *env = mon_get_cpu();
2840     return env->regwptr[val];
2841 }
2842 #endif
2843
2844 static const MonitorDef monitor_defs[] = {
2845 #ifdef TARGET_I386
2846
2847 #define SEG(name, seg) \
2848     { name, offsetof(CPUState, segs[seg].selector), NULL, MD_I32 },\
2849     { name ".base", offsetof(CPUState, segs[seg].base) },\
2850     { name ".limit", offsetof(CPUState, segs[seg].limit), NULL, MD_I32 },
2851
2852     { "eax", offsetof(CPUState, regs[0]) },
2853     { "ecx", offsetof(CPUState, regs[1]) },
2854     { "edx", offsetof(CPUState, regs[2]) },
2855     { "ebx", offsetof(CPUState, regs[3]) },
2856     { "esp|sp", offsetof(CPUState, regs[4]) },
2857     { "ebp|fp", offsetof(CPUState, regs[5]) },
2858     { "esi", offsetof(CPUState, regs[6]) },
2859     { "edi", offsetof(CPUState, regs[7]) },
2860 #ifdef TARGET_X86_64
2861     { "r8", offsetof(CPUState, regs[8]) },
2862     { "r9", offsetof(CPUState, regs[9]) },
2863     { "r10", offsetof(CPUState, regs[10]) },
2864     { "r11", offsetof(CPUState, regs[11]) },
2865     { "r12", offsetof(CPUState, regs[12]) },
2866     { "r13", offsetof(CPUState, regs[13]) },
2867     { "r14", offsetof(CPUState, regs[14]) },
2868     { "r15", offsetof(CPUState, regs[15]) },
2869 #endif
2870     { "eflags", offsetof(CPUState, eflags) },
2871     { "eip", offsetof(CPUState, eip) },
2872     SEG("cs", R_CS)
2873     SEG("ds", R_DS)
2874     SEG("es", R_ES)
2875     SEG("ss", R_SS)
2876     SEG("fs", R_FS)
2877     SEG("gs", R_GS)
2878     { "pc", 0, monitor_get_pc, },
2879 #elif defined(TARGET_PPC)
2880     /* General purpose registers */
2881     { "r0", offsetof(CPUState, gpr[0]) },
2882     { "r1", offsetof(CPUState, gpr[1]) },
2883     { "r2", offsetof(CPUState, gpr[2]) },
2884     { "r3", offsetof(CPUState, gpr[3]) },
2885     { "r4", offsetof(CPUState, gpr[4]) },
2886     { "r5", offsetof(CPUState, gpr[5]) },
2887     { "r6", offsetof(CPUState, gpr[6]) },
2888     { "r7", offsetof(CPUState, gpr[7]) },
2889     { "r8", offsetof(CPUState, gpr[8]) },
2890     { "r9", offsetof(CPUState, gpr[9]) },
2891     { "r10", offsetof(CPUState, gpr[10]) },
2892     { "r11", offsetof(CPUState, gpr[11]) },
2893     { "r12", offsetof(CPUState, gpr[12]) },
2894     { "r13", offsetof(CPUState, gpr[13]) },
2895     { "r14", offsetof(CPUState, gpr[14]) },
2896     { "r15", offsetof(CPUState, gpr[15]) },
2897     { "r16", offsetof(CPUState, gpr[16]) },
2898     { "r17", offsetof(CPUState, gpr[17]) },
2899     { "r18", offsetof(CPUState, gpr[18]) },
2900     { "r19", offsetof(CPUState, gpr[19]) },
2901     { "r20", offsetof(CPUState, gpr[20]) },
2902     { "r21", offsetof(CPUState, gpr[21]) },
2903     { "r22", offsetof(CPUState, gpr[22]) },
2904     { "r23", offsetof(CPUState, gpr[23]) },
2905     { "r24", offsetof(CPUState, gpr[24]) },
2906     { "r25", offsetof(CPUState, gpr[25]) },
2907     { "r26", offsetof(CPUState, gpr[26]) },
2908     { "r27", offsetof(CPUState, gpr[27]) },
2909     { "r28", offsetof(CPUState, gpr[28]) },
2910     { "r29", offsetof(CPUState, gpr[29]) },
2911     { "r30", offsetof(CPUState, gpr[30]) },
2912     { "r31", offsetof(CPUState, gpr[31]) },
2913     /* Floating point registers */
2914     { "f0", offsetof(CPUState, fpr[0]) },
2915     { "f1", offsetof(CPUState, fpr[1]) },
2916     { "f2", offsetof(CPUState, fpr[2]) },
2917     { "f3", offsetof(CPUState, fpr[3]) },
2918     { "f4", offsetof(CPUState, fpr[4]) },
2919     { "f5", offsetof(CPUState, fpr[5]) },
2920     { "f6", offsetof(CPUState, fpr[6]) },
2921     { "f7", offsetof(CPUState, fpr[7]) },
2922     { "f8", offsetof(CPUState, fpr[8]) },
2923     { "f9", offsetof(CPUState, fpr[9]) },
2924     { "f10", offsetof(CPUState, fpr[10]) },
2925     { "f11", offsetof(CPUState, fpr[11]) },
2926     { "f12", offsetof(CPUState, fpr[12]) },
2927     { "f13", offsetof(CPUState, fpr[13]) },
2928     { "f14", offsetof(CPUState, fpr[14]) },
2929     { "f15", offsetof(CPUState, fpr[15]) },
2930     { "f16", offsetof(CPUState, fpr[16]) },
2931     { "f17", offsetof(CPUState, fpr[17]) },
2932     { "f18", offsetof(CPUState, fpr[18]) },
2933     { "f19", offsetof(CPUState, fpr[19]) },
2934     { "f20", offsetof(CPUState, fpr[20]) },
2935     { "f21", offsetof(CPUState, fpr[21]) },
2936     { "f22", offsetof(CPUState, fpr[22]) },
2937     { "f23", offsetof(CPUState, fpr[23]) },
2938     { "f24", offsetof(CPUState, fpr[24]) },
2939     { "f25", offsetof(CPUState, fpr[25]) },
2940     { "f26", offsetof(CPUState, fpr[26]) },
2941     { "f27", offsetof(CPUState, fpr[27]) },
2942     { "f28", offsetof(CPUState, fpr[28]) },
2943     { "f29", offsetof(CPUState, fpr[29]) },
2944     { "f30", offsetof(CPUState, fpr[30]) },
2945     { "f31", offsetof(CPUState, fpr[31]) },
2946     { "fpscr", offsetof(CPUState, fpscr) },
2947     /* Next instruction pointer */
2948     { "nip|pc", offsetof(CPUState, nip) },
2949     { "lr", offsetof(CPUState, lr) },
2950     { "ctr", offsetof(CPUState, ctr) },
2951     { "decr", 0, &monitor_get_decr, },
2952     { "ccr", 0, &monitor_get_ccr, },
2953     /* Machine state register */
2954     { "msr", 0, &monitor_get_msr, },
2955     { "xer", 0, &monitor_get_xer, },
2956     { "tbu", 0, &monitor_get_tbu, },
2957     { "tbl", 0, &monitor_get_tbl, },
2958 #if defined(TARGET_PPC64)
2959     /* Address space register */
2960     { "asr", offsetof(CPUState, asr) },
2961 #endif
2962     /* Segment registers */
2963     { "sdr1", offsetof(CPUState, sdr1) },
2964     { "sr0", offsetof(CPUState, sr[0]) },
2965     { "sr1", offsetof(CPUState, sr[1]) },
2966     { "sr2", offsetof(CPUState, sr[2]) },
2967     { "sr3", offsetof(CPUState, sr[3]) },
2968     { "sr4", offsetof(CPUState, sr[4]) },
2969     { "sr5", offsetof(CPUState, sr[5]) },
2970     { "sr6", offsetof(CPUState, sr[6]) },
2971     { "sr7", offsetof(CPUState, sr[7]) },
2972     { "sr8", offsetof(CPUState, sr[8]) },
2973     { "sr9", offsetof(CPUState, sr[9]) },
2974     { "sr10", offsetof(CPUState, sr[10]) },
2975     { "sr11", offsetof(CPUState, sr[11]) },
2976     { "sr12", offsetof(CPUState, sr[12]) },
2977     { "sr13", offsetof(CPUState, sr[13]) },
2978     { "sr14", offsetof(CPUState, sr[14]) },
2979     { "sr15", offsetof(CPUState, sr[15]) },
2980     /* Too lazy to put BATs and SPRs ... */
2981 #elif defined(TARGET_SPARC)
2982     { "g0", offsetof(CPUState, gregs[0]) },
2983     { "g1", offsetof(CPUState, gregs[1]) },
2984     { "g2", offsetof(CPUState, gregs[2]) },
2985     { "g3", offsetof(CPUState, gregs[3]) },
2986     { "g4", offsetof(CPUState, gregs[4]) },
2987     { "g5", offsetof(CPUState, gregs[5]) },
2988     { "g6", offsetof(CPUState, gregs[6]) },
2989     { "g7", offsetof(CPUState, gregs[7]) },
2990     { "o0", 0, monitor_get_reg },
2991     { "o1", 1, monitor_get_reg },
2992     { "o2", 2, monitor_get_reg },
2993     { "o3", 3, monitor_get_reg },
2994     { "o4", 4, monitor_get_reg },
2995     { "o5", 5, monitor_get_reg },
2996     { "o6", 6, monitor_get_reg },
2997     { "o7", 7, monitor_get_reg },
2998     { "l0", 8, monitor_get_reg },
2999     { "l1", 9, monitor_get_reg },
3000     { "l2", 10, monitor_get_reg },
3001     { "l3", 11, monitor_get_reg },
3002     { "l4", 12, monitor_get_reg },
3003     { "l5", 13, monitor_get_reg },
3004     { "l6", 14, monitor_get_reg },
3005     { "l7", 15, monitor_get_reg },
3006     { "i0", 16, monitor_get_reg },
3007     { "i1", 17, monitor_get_reg },
3008     { "i2", 18, monitor_get_reg },
3009     { "i3", 19, monitor_get_reg },
3010     { "i4", 20, monitor_get_reg },
3011     { "i5", 21, monitor_get_reg },
3012     { "i6", 22, monitor_get_reg },
3013     { "i7", 23, monitor_get_reg },
3014     { "pc", offsetof(CPUState, pc) },
3015     { "npc", offsetof(CPUState, npc) },
3016     { "y", offsetof(CPUState, y) },
3017 #ifndef TARGET_SPARC64
3018     { "psr", 0, &monitor_get_psr, },
3019     { "wim", offsetof(CPUState, wim) },
3020 #endif
3021     { "tbr", offsetof(CPUState, tbr) },
3022     { "fsr", offsetof(CPUState, fsr) },
3023     { "f0", offsetof(CPUState, fpr[0]) },
3024     { "f1", offsetof(CPUState, fpr[1]) },
3025     { "f2", offsetof(CPUState, fpr[2]) },
3026     { "f3", offsetof(CPUState, fpr[3]) },
3027     { "f4", offsetof(CPUState, fpr[4]) },
3028     { "f5", offsetof(CPUState, fpr[5]) },
3029     { "f6", offsetof(CPUState, fpr[6]) },
3030     { "f7", offsetof(CPUState, fpr[7]) },
3031     { "f8", offsetof(CPUState, fpr[8]) },
3032     { "f9", offsetof(CPUState, fpr[9]) },
3033     { "f10", offsetof(CPUState, fpr[10]) },
3034     { "f11", offsetof(CPUState, fpr[11]) },
3035     { "f12", offsetof(CPUState, fpr[12]) },
3036     { "f13", offsetof(CPUState, fpr[13]) },
3037     { "f14", offsetof(CPUState, fpr[14]) },
3038     { "f15", offsetof(CPUState, fpr[15]) },
3039     { "f16", offsetof(CPUState, fpr[16]) },
3040     { "f17", offsetof(CPUState, fpr[17]) },
3041     { "f18", offsetof(CPUState, fpr[18]) },
3042     { "f19", offsetof(CPUState, fpr[19]) },
3043     { "f20", offsetof(CPUState, fpr[20]) },
3044     { "f21", offsetof(CPUState, fpr[21]) },
3045     { "f22", offsetof(CPUState, fpr[22]) },
3046     { "f23", offsetof(CPUState, fpr[23]) },
3047     { "f24", offsetof(CPUState, fpr[24]) },
3048     { "f25", offsetof(CPUState, fpr[25]) },
3049     { "f26", offsetof(CPUState, fpr[26]) },
3050     { "f27", offsetof(CPUState, fpr[27]) },
3051     { "f28", offsetof(CPUState, fpr[28]) },
3052     { "f29", offsetof(CPUState, fpr[29]) },
3053     { "f30", offsetof(CPUState, fpr[30]) },
3054     { "f31", offsetof(CPUState, fpr[31]) },
3055 #ifdef TARGET_SPARC64
3056     { "f32", offsetof(CPUState, fpr[32]) },
3057     { "f34", offsetof(CPUState, fpr[34]) },
3058     { "f36", offsetof(CPUState, fpr[36]) },
3059     { "f38", offsetof(CPUState, fpr[38]) },
3060     { "f40", offsetof(CPUState, fpr[40]) },
3061     { "f42", offsetof(CPUState, fpr[42]) },
3062     { "f44", offsetof(CPUState, fpr[44]) },
3063     { "f46", offsetof(CPUState, fpr[46]) },
3064     { "f48", offsetof(CPUState, fpr[48]) },
3065     { "f50", offsetof(CPUState, fpr[50]) },
3066     { "f52", offsetof(CPUState, fpr[52]) },
3067     { "f54", offsetof(CPUState, fpr[54]) },
3068     { "f56", offsetof(CPUState, fpr[56]) },
3069     { "f58", offsetof(CPUState, fpr[58]) },
3070     { "f60", offsetof(CPUState, fpr[60]) },
3071     { "f62", offsetof(CPUState, fpr[62]) },
3072     { "asi", offsetof(CPUState, asi) },
3073     { "pstate", offsetof(CPUState, pstate) },
3074     { "cansave", offsetof(CPUState, cansave) },
3075     { "canrestore", offsetof(CPUState, canrestore) },
3076     { "otherwin", offsetof(CPUState, otherwin) },
3077     { "wstate", offsetof(CPUState, wstate) },
3078     { "cleanwin", offsetof(CPUState, cleanwin) },
3079     { "fprs", offsetof(CPUState, fprs) },
3080 #endif
3081 #endif
3082     { NULL },
3083 };
3084
3085 static void expr_error(Monitor *mon, const char *msg)
3086 {
3087     monitor_printf(mon, "%s\n", msg);
3088     longjmp(expr_env, 1);
3089 }
3090
3091 /* return 0 if OK, -1 if not found */
3092 static int get_monitor_def(target_long *pval, const char *name)
3093 {
3094     const MonitorDef *md;
3095     void *ptr;
3096
3097     for(md = monitor_defs; md->name != NULL; md++) {
3098         if (compare_cmd(name, md->name)) {
3099             if (md->get_value) {
3100                 *pval = md->get_value(md, md->offset);
3101             } else {
3102                 CPUState *env = mon_get_cpu();
3103                 ptr = (uint8_t *)env + md->offset;
3104                 switch(md->type) {
3105                 case MD_I32:
3106                     *pval = *(int32_t *)ptr;
3107                     break;
3108                 case MD_TLONG:
3109                     *pval = *(target_long *)ptr;
3110                     break;
3111                 default:
3112                     *pval = 0;
3113                     break;
3114                 }
3115             }
3116             return 0;
3117         }
3118     }
3119     return -1;
3120 }
3121
3122 static void next(void)
3123 {
3124     if (*pch != '\0') {
3125         pch++;
3126         while (qemu_isspace(*pch))
3127             pch++;
3128     }
3129 }
3130
3131 static int64_t expr_sum(Monitor *mon);
3132
3133 static int64_t expr_unary(Monitor *mon)
3134 {
3135     int64_t n;
3136     char *p;
3137     int ret;
3138
3139     switch(*pch) {
3140     case '+':
3141         next();
3142         n = expr_unary(mon);
3143         break;
3144     case '-':
3145         next();
3146         n = -expr_unary(mon);
3147         break;
3148     case '~':
3149         next();
3150         n = ~expr_unary(mon);
3151         break;
3152     case '(':
3153         next();
3154         n = expr_sum(mon);
3155         if (*pch != ')') {
3156             expr_error(mon, "')' expected");
3157         }
3158         next();
3159         break;
3160     case '\'':
3161         pch++;
3162         if (*pch == '\0')
3163             expr_error(mon, "character constant expected");
3164         n = *pch;
3165         pch++;
3166         if (*pch != '\'')
3167             expr_error(mon, "missing terminating \' character");
3168         next();
3169         break;
3170     case '$':
3171         {
3172             char buf[128], *q;
3173             target_long reg=0;
3174
3175             pch++;
3176             q = buf;
3177             while ((*pch >= 'a' && *pch <= 'z') ||
3178                    (*pch >= 'A' && *pch <= 'Z') ||
3179                    (*pch >= '0' && *pch <= '9') ||
3180                    *pch == '_' || *pch == '.') {
3181                 if ((q - buf) < sizeof(buf) - 1)
3182                     *q++ = *pch;
3183                 pch++;
3184             }
3185             while (qemu_isspace(*pch))
3186                 pch++;
3187             *q = 0;
3188             ret = get_monitor_def(&reg, buf);
3189             if (ret < 0)
3190                 expr_error(mon, "unknown register");
3191             n = reg;
3192         }
3193         break;
3194     case '\0':
3195         expr_error(mon, "unexpected end of expression");
3196         n = 0;
3197         break;
3198     default:
3199 #if TARGET_PHYS_ADDR_BITS > 32
3200         n = strtoull(pch, &p, 0);
3201 #else
3202         n = strtoul(pch, &p, 0);
3203 #endif
3204         if (pch == p) {
3205             expr_error(mon, "invalid char in expression");
3206         }
3207         pch = p;
3208         while (qemu_isspace(*pch))
3209             pch++;
3210         break;
3211     }
3212     return n;
3213 }
3214
3215
3216 static int64_t expr_prod(Monitor *mon)
3217 {
3218     int64_t val, val2;
3219     int op;
3220
3221     val = expr_unary(mon);
3222     for(;;) {
3223         op = *pch;
3224         if (op != '*' && op != '/' && op != '%')
3225             break;
3226         next();
3227         val2 = expr_unary(mon);
3228         switch(op) {
3229         default:
3230         case '*':
3231             val *= val2;
3232             break;
3233         case '/':
3234         case '%':
3235             if (val2 == 0)
3236                 expr_error(mon, "division by zero");
3237             if (op == '/')
3238                 val /= val2;
3239             else
3240                 val %= val2;
3241             break;
3242         }
3243     }
3244     return val;
3245 }
3246
3247 static int64_t expr_logic(Monitor *mon)
3248 {
3249     int64_t val, val2;
3250     int op;
3251
3252     val = expr_prod(mon);
3253     for(;;) {
3254         op = *pch;
3255         if (op != '&' && op != '|' && op != '^')
3256             break;
3257         next();
3258         val2 = expr_prod(mon);
3259         switch(op) {
3260         default:
3261         case '&':
3262             val &= val2;
3263             break;
3264         case '|':
3265             val |= val2;
3266             break;
3267         case '^':
3268             val ^= val2;
3269             break;
3270         }
3271     }
3272     return val;
3273 }
3274
3275 static int64_t expr_sum(Monitor *mon)
3276 {
3277     int64_t val, val2;
3278     int op;
3279
3280     val = expr_logic(mon);
3281     for(;;) {
3282         op = *pch;
3283         if (op != '+' && op != '-')
3284             break;
3285         next();
3286         val2 = expr_logic(mon);
3287         if (op == '+')
3288             val += val2;
3289         else
3290             val -= val2;
3291     }
3292     return val;
3293 }
3294
3295 static int get_expr(Monitor *mon, int64_t *pval, const char **pp)
3296 {
3297     pch = *pp;
3298     if (setjmp(expr_env)) {
3299         *pp = pch;
3300         return -1;
3301     }
3302     while (qemu_isspace(*pch))
3303         pch++;
3304     *pval = expr_sum(mon);
3305     *pp = pch;
3306     return 0;
3307 }
3308
3309 static int get_double(Monitor *mon, double *pval, const char **pp)
3310 {
3311     const char *p = *pp;
3312     char *tailp;
3313     double d;
3314
3315     d = strtod(p, &tailp);
3316     if (tailp == p) {
3317         monitor_printf(mon, "Number expected\n");
3318         return -1;
3319     }
3320     if (d != d || d - d != 0) {
3321         /* NaN or infinity */
3322         monitor_printf(mon, "Bad number\n");
3323         return -1;
3324     }
3325     *pval = d;
3326     *pp = tailp;
3327     return 0;
3328 }
3329
3330 static int get_str(char *buf, int buf_size, const char **pp)
3331 {
3332     const char *p;
3333     char *q;
3334     int c;
3335
3336     q = buf;
3337     p = *pp;
3338     while (qemu_isspace(*p))
3339         p++;
3340     if (*p == '\0') {
3341     fail:
3342         *q = '\0';
3343         *pp = p;
3344         return -1;
3345     }
3346     if (*p == '\"') {
3347         p++;
3348         while (*p != '\0' && *p != '\"') {
3349             if (*p == '\\') {
3350                 p++;
3351                 c = *p++;
3352                 switch(c) {
3353                 case 'n':
3354                     c = '\n';
3355                     break;
3356                 case 'r':
3357                     c = '\r';
3358                     break;
3359                 case '\\':
3360                 case '\'':
3361                 case '\"':
3362                     break;
3363                 default:
3364                     qemu_printf("unsupported escape code: '\\%c'\n", c);
3365                     goto fail;
3366                 }
3367                 if ((q - buf) < buf_size - 1) {
3368                     *q++ = c;
3369                 }
3370             } else {
3371                 if ((q - buf) < buf_size - 1) {
3372                     *q++ = *p;
3373                 }
3374                 p++;
3375             }
3376         }
3377         if (*p != '\"') {
3378             qemu_printf("unterminated string\n");
3379             goto fail;
3380         }
3381         p++;
3382     } else {
3383         while (*p != '\0' && !qemu_isspace(*p)) {
3384             if ((q - buf) < buf_size - 1) {
3385                 *q++ = *p;
3386             }
3387             p++;
3388         }
3389     }
3390     *q = '\0';
3391     *pp = p;
3392     return 0;
3393 }
3394
3395 /*
3396  * Store the command-name in cmdname, and return a pointer to
3397  * the remaining of the command string.
3398  */
3399 static const char *get_command_name(const char *cmdline,
3400                                     char *cmdname, size_t nlen)
3401 {
3402     size_t len;
3403     const char *p, *pstart;
3404
3405     p = cmdline;
3406     while (qemu_isspace(*p))
3407         p++;
3408     if (*p == '\0')
3409         return NULL;
3410     pstart = p;
3411     while (*p != '\0' && *p != '/' && !qemu_isspace(*p))
3412         p++;
3413     len = p - pstart;
3414     if (len > nlen - 1)
3415         len = nlen - 1;
3416     memcpy(cmdname, pstart, len);
3417     cmdname[len] = '\0';
3418     return p;
3419 }
3420
3421 /**
3422  * Read key of 'type' into 'key' and return the current
3423  * 'type' pointer.
3424  */
3425 static char *key_get_info(const char *type, char **key)
3426 {
3427     size_t len;
3428     char *p, *str;
3429
3430     if (*type == ',')
3431         type++;
3432
3433     p = strchr(type, ':');
3434     if (!p) {
3435         *key = NULL;
3436         return NULL;
3437     }
3438     len = p - type;
3439
3440     str = qemu_malloc(len + 1);
3441     memcpy(str, type, len);
3442     str[len] = '\0';
3443
3444     *key = str;
3445     return ++p;
3446 }
3447
3448 static int default_fmt_format = 'x';
3449 static int default_fmt_size = 4;
3450
3451 #define MAX_ARGS 16
3452
3453 static int is_valid_option(const char *c, const char *typestr)
3454 {
3455     char option[3];
3456
3457     option[0] = '-';
3458     option[1] = *c;
3459     option[2] = '\0';
3460
3461     typestr = strstr(typestr, option);
3462     return (typestr != NULL);
3463 }
3464
3465 static const mon_cmd_t *search_dispatch_table(const mon_cmd_t *disp_table,
3466                                               const char *cmdname)
3467 {
3468     const mon_cmd_t *cmd;
3469
3470     for (cmd = disp_table; cmd->name != NULL; cmd++) {
3471         if (compare_cmd(cmdname, cmd->name)) {
3472             return cmd;
3473         }
3474     }
3475
3476     return NULL;
3477 }
3478
3479 static const mon_cmd_t *monitor_find_command(const char *cmdname)
3480 {
3481     return search_dispatch_table(mon_cmds, cmdname);
3482 }
3483
3484 static const mon_cmd_t *qmp_find_query_cmd(const char *info_item)
3485 {
3486     return search_dispatch_table(qmp_query_cmds, info_item);
3487 }
3488
3489 static const mon_cmd_t *qmp_find_cmd(const char *cmdname)
3490 {
3491     return search_dispatch_table(qmp_cmds, cmdname);
3492 }
3493
3494 static const mon_cmd_t *monitor_parse_command(Monitor *mon,
3495                                               const char *cmdline,
3496                                               QDict *qdict)
3497 {
3498     const char *p, *typestr;
3499     int c;
3500     const mon_cmd_t *cmd;
3501     char cmdname[256];
3502     char buf[1024];
3503     char *key;
3504
3505 #ifdef DEBUG
3506     monitor_printf(mon, "command='%s'\n", cmdline);
3507 #endif
3508
3509     /* extract the command name */
3510     p = get_command_name(cmdline, cmdname, sizeof(cmdname));
3511     if (!p)
3512         return NULL;
3513
3514     cmd = monitor_find_command(cmdname);
3515     if (!cmd) {
3516         monitor_printf(mon, "unknown command: '%s'\n", cmdname);
3517         return NULL;
3518     }
3519
3520     /* parse the parameters */
3521     typestr = cmd->args_type;
3522     for(;;) {
3523         typestr = key_get_info(typestr, &key);
3524         if (!typestr)
3525             break;
3526         c = *typestr;
3527         typestr++;
3528         switch(c) {
3529         case 'F':
3530         case 'B':
3531         case 's':
3532             {
3533                 int ret;
3534
3535                 while (qemu_isspace(*p))
3536                     p++;
3537                 if (*typestr == '?') {
3538                     typestr++;
3539                     if (*p == '\0') {
3540                         /* no optional string: NULL argument */
3541                         break;
3542                     }
3543                 }
3544                 ret = get_str(buf, sizeof(buf), &p);
3545                 if (ret < 0) {
3546                     switch(c) {
3547                     case 'F':
3548                         monitor_printf(mon, "%s: filename expected\n",
3549                                        cmdname);
3550                         break;
3551                     case 'B':
3552                         monitor_printf(mon, "%s: block device name expected\n",
3553                                        cmdname);
3554                         break;
3555                     default:
3556                         monitor_printf(mon, "%s: string expected\n", cmdname);
3557                         break;
3558                     }
3559                     goto fail;
3560                 }
3561                 qdict_put(qdict, key, qstring_from_str(buf));
3562             }
3563             break;
3564         case 'O':
3565             {
3566                 QemuOptsList *opts_list;
3567                 QemuOpts *opts;
3568
3569                 opts_list = qemu_find_opts(key);
3570                 if (!opts_list || opts_list->desc->name) {
3571                     goto bad_type;
3572                 }
3573                 while (qemu_isspace(*p)) {
3574                     p++;
3575                 }
3576                 if (!*p)
3577                     break;
3578                 if (get_str(buf, sizeof(buf), &p) < 0) {
3579                     goto fail;
3580                 }
3581                 opts = qemu_opts_parse(opts_list, buf, 1);
3582                 if (!opts) {
3583                     goto fail;
3584                 }
3585                 qemu_opts_to_qdict(opts, qdict);
3586                 qemu_opts_del(opts);
3587             }
3588             break;
3589         case '/':
3590             {
3591                 int count, format, size;
3592
3593                 while (qemu_isspace(*p))
3594                     p++;
3595                 if (*p == '/') {
3596                     /* format found */
3597                     p++;
3598                     count = 1;
3599                     if (qemu_isdigit(*p)) {
3600                         count = 0;
3601                         while (qemu_isdigit(*p)) {
3602                             count = count * 10 + (*p - '0');
3603                             p++;
3604                         }
3605                     }
3606                     size = -1;
3607                     format = -1;
3608                     for(;;) {
3609                         switch(*p) {
3610                         case 'o':
3611                         case 'd':
3612                         case 'u':
3613                         case 'x':
3614                         case 'i':
3615                         case 'c':
3616                             format = *p++;
3617                             break;
3618                         case 'b':
3619                             size = 1;
3620                             p++;
3621                             break;
3622                         case 'h':
3623                             size = 2;
3624                             p++;
3625                             break;
3626                         case 'w':
3627                             size = 4;
3628                             p++;
3629                             break;
3630                         case 'g':
3631                         case 'L':
3632                             size = 8;
3633                             p++;
3634                             break;
3635                         default:
3636                             goto next;
3637                         }
3638                     }
3639                 next:
3640                     if (*p != '\0' && !qemu_isspace(*p)) {
3641                         monitor_printf(mon, "invalid char in format: '%c'\n",
3642                                        *p);
3643                         goto fail;
3644                     }
3645                     if (format < 0)
3646                         format = default_fmt_format;
3647                     if (format != 'i') {
3648                         /* for 'i', not specifying a size gives -1 as size */
3649                         if (size < 0)
3650                             size = default_fmt_size;
3651                         default_fmt_size = size;
3652                     }
3653                     default_fmt_format = format;
3654                 } else {
3655                     count = 1;
3656                     format = default_fmt_format;
3657                     if (format != 'i') {
3658                         size = default_fmt_size;
3659                     } else {
3660                         size = -1;
3661                     }
3662                 }
3663                 qdict_put(qdict, "count", qint_from_int(count));
3664                 qdict_put(qdict, "format", qint_from_int(format));
3665                 qdict_put(qdict, "size", qint_from_int(size));
3666             }
3667             break;
3668         case 'i':
3669         case 'l':
3670         case 'M':
3671             {
3672                 int64_t val;
3673
3674                 while (qemu_isspace(*p))
3675                     p++;
3676                 if (*typestr == '?' || *typestr == '.') {
3677                     if (*typestr == '?') {
3678                         if (*p == '\0') {
3679                             typestr++;
3680                             break;
3681                         }
3682                     } else {
3683                         if (*p == '.') {
3684                             p++;
3685                             while (qemu_isspace(*p))
3686                                 p++;
3687                         } else {
3688                             typestr++;
3689                             break;
3690                         }
3691                     }
3692                     typestr++;
3693                 }
3694                 if (get_expr(mon, &val, &p))
3695                     goto fail;
3696                 /* Check if 'i' is greater than 32-bit */
3697                 if ((c == 'i') && ((val >> 32) & 0xffffffff)) {
3698                     monitor_printf(mon, "\'%s\' has failed: ", cmdname);
3699                     monitor_printf(mon, "integer is for 32-bit values\n");
3700                     goto fail;
3701                 } else if (c == 'M') {
3702                     val <<= 20;
3703                 }
3704                 qdict_put(qdict, key, qint_from_int(val));
3705             }
3706             break;
3707         case 'o':
3708             {
3709                 ssize_t val;
3710                 char *end;
3711
3712                 while (qemu_isspace(*p)) {
3713                     p++;
3714                 }
3715                 if (*typestr == '?') {
3716                     typestr++;
3717                     if (*p == '\0') {
3718                         break;
3719                     }
3720                 }
3721                 val = strtosz(p, &end);
3722                 if (val < 0) {
3723                     monitor_printf(mon, "invalid size\n");
3724                     goto fail;
3725                 }
3726                 qdict_put(qdict, key, qint_from_int(val));
3727                 p = end;
3728             }
3729             break;
3730         case 'T':
3731             {
3732                 double val;
3733
3734                 while (qemu_isspace(*p))
3735                     p++;
3736                 if (*typestr == '?') {
3737                     typestr++;
3738                     if (*p == '\0') {
3739                         break;
3740                     }
3741                 }
3742                 if (get_double(mon, &val, &p) < 0) {
3743                     goto fail;
3744                 }
3745                 if (p[0] && p[1] == 's') {
3746                     switch (*p) {
3747                     case 'm':
3748                         val /= 1e3; p += 2; break;
3749                     case 'u':
3750                         val /= 1e6; p += 2; break;
3751                     case 'n':
3752                         val /= 1e9; p += 2; break;
3753                     }
3754                 }
3755                 if (*p && !qemu_isspace(*p)) {
3756                     monitor_printf(mon, "Unknown unit suffix\n");
3757                     goto fail;
3758                 }
3759                 qdict_put(qdict, key, qfloat_from_double(val));
3760             }
3761             break;
3762         case 'b':
3763             {
3764                 const char *beg;
3765                 int val;
3766
3767                 while (qemu_isspace(*p)) {
3768                     p++;
3769                 }
3770                 beg = p;
3771                 while (qemu_isgraph(*p)) {
3772                     p++;
3773                 }
3774                 if (p - beg == 2 && !memcmp(beg, "on", p - beg)) {
3775                     val = 1;
3776                 } else if (p - beg == 3 && !memcmp(beg, "off", p - beg)) {
3777                     val = 0;
3778                 } else {
3779                     monitor_printf(mon, "Expected 'on' or 'off'\n");
3780                     goto fail;
3781                 }
3782                 qdict_put(qdict, key, qbool_from_int(val));
3783             }
3784             break;
3785         case '-':
3786             {
3787                 const char *tmp = p;
3788                 int skip_key = 0;
3789                 /* option */
3790
3791                 c = *typestr++;
3792                 if (c == '\0')
3793                     goto bad_type;
3794                 while (qemu_isspace(*p))
3795                     p++;
3796                 if (*p == '-') {
3797                     p++;
3798                     if(c != *p) {
3799                         if(!is_valid_option(p, typestr)) {
3800
3801                             monitor_printf(mon, "%s: unsupported option -%c\n",
3802                                            cmdname, *p);
3803                             goto fail;
3804                         } else {
3805                             skip_key = 1;
3806                         }
3807                     }
3808                     if(skip_key) {
3809                         p = tmp;
3810                     } else {
3811                         /* has option */
3812                         p++;
3813                         qdict_put(qdict, key, qbool_from_int(1));
3814                     }
3815                 }
3816             }
3817             break;
3818         default:
3819         bad_type:
3820             monitor_printf(mon, "%s: unknown type '%c'\n", cmdname, c);
3821             goto fail;
3822         }
3823         qemu_free(key);
3824         key = NULL;
3825     }
3826     /* check that all arguments were parsed */
3827     while (qemu_isspace(*p))
3828         p++;
3829     if (*p != '\0') {
3830         monitor_printf(mon, "%s: extraneous characters at the end of line\n",
3831                        cmdname);
3832         goto fail;
3833     }
3834
3835     return cmd;
3836
3837 fail:
3838     qemu_free(key);
3839     return NULL;
3840 }
3841
3842 void monitor_set_error(Monitor *mon, QError *qerror)
3843 {
3844     /* report only the first error */
3845     if (!mon->error) {
3846         mon->error = qerror;
3847     } else {
3848         MON_DEBUG("Additional error report at %s:%d\n",
3849                   qerror->file, qerror->linenr);
3850         QDECREF(qerror);
3851     }
3852 }
3853
3854 static void handler_audit(Monitor *mon, const mon_cmd_t *cmd, int ret)
3855 {
3856     if (monitor_ctrl_mode(mon)) {
3857         if (ret && !monitor_has_error(mon)) {
3858             /*
3859              * If it returns failure, it must have passed on error.
3860              *
3861              * Action: Report an internal error to the client if in QMP.
3862              */
3863             qerror_report(QERR_UNDEFINED_ERROR);
3864             MON_DEBUG("command '%s' returned failure but did not pass an error\n",
3865                       cmd->name);
3866         }
3867
3868 #ifdef CONFIG_DEBUG_MONITOR
3869         if (!ret && monitor_has_error(mon)) {
3870             /*
3871              * If it returns success, it must not have passed an error.
3872              *
3873              * Action: Report the passed error to the client.
3874              */
3875             MON_DEBUG("command '%s' returned success but passed an error\n",
3876                       cmd->name);
3877         }
3878
3879         if (mon_print_count_get(mon) > 0 && strcmp(cmd->name, "info") != 0) {
3880             /*
3881              * Handlers should not call Monitor print functions.
3882              *
3883              * Action: Ignore them in QMP.
3884              *
3885              * (XXX: we don't check any 'info' or 'query' command here
3886              * because the user print function _is_ called by do_info(), hence
3887              * we will trigger this check. This problem will go away when we
3888              * make 'query' commands real and kill do_info())
3889              */
3890             MON_DEBUG("command '%s' called print functions %d time(s)\n",
3891                       cmd->name, mon_print_count_get(mon));
3892         }
3893 #endif
3894     } else {
3895         assert(!monitor_has_error(mon));
3896         QDECREF(mon->error);
3897         mon->error = NULL;
3898     }
3899 }
3900
3901 static void handle_user_command(Monitor *mon, const char *cmdline)
3902 {
3903     QDict *qdict;
3904     const mon_cmd_t *cmd;
3905
3906     qdict = qdict_new();
3907
3908     cmd = monitor_parse_command(mon, cmdline, qdict);
3909     if (!cmd)
3910         goto out;
3911
3912     if (handler_is_async(cmd)) {
3913         user_async_cmd_handler(mon, cmd, qdict);
3914     } else if (handler_is_qobject(cmd)) {
3915         QObject *data = NULL;
3916
3917         /* XXX: ignores the error code */
3918         cmd->mhandler.cmd_new(mon, qdict, &data);
3919         assert(!monitor_has_error(mon));
3920         if (data) {
3921             cmd->user_print(mon, data);
3922             qobject_decref(data);
3923         }
3924     } else {
3925         cmd->mhandler.cmd(mon, qdict);
3926     }
3927
3928 out:
3929     QDECREF(qdict);
3930 }
3931
3932 static void cmd_completion(const char *name, const char *list)
3933 {
3934     const char *p, *pstart;
3935     char cmd[128];
3936     int len;
3937
3938     p = list;
3939     for(;;) {
3940         pstart = p;
3941         p = strchr(p, '|');
3942         if (!p)
3943             p = pstart + strlen(pstart);
3944         len = p - pstart;
3945         if (len > sizeof(cmd) - 2)
3946             len = sizeof(cmd) - 2;
3947         memcpy(cmd, pstart, len);
3948         cmd[len] = '\0';
3949         if (name[0] == '\0' || !strncmp(name, cmd, strlen(name))) {
3950             readline_add_completion(cur_mon->rs, cmd);
3951         }
3952         if (*p == '\0')
3953             break;
3954         p++;
3955     }
3956 }
3957
3958 static void file_completion(const char *input)
3959 {
3960     DIR *ffs;
3961     struct dirent *d;
3962     char path[1024];
3963     char file[1024], file_prefix[1024];
3964     int input_path_len;
3965     const char *p;
3966
3967     p = strrchr(input, '/');
3968     if (!p) {
3969         input_path_len = 0;
3970         pstrcpy(file_prefix, sizeof(file_prefix), input);
3971         pstrcpy(path, sizeof(path), ".");
3972     } else {
3973         input_path_len = p - input + 1;
3974         memcpy(path, input, input_path_len);
3975         if (input_path_len > sizeof(path) - 1)
3976             input_path_len = sizeof(path) - 1;
3977         path[input_path_len] = '\0';
3978         pstrcpy(file_prefix, sizeof(file_prefix), p + 1);
3979     }
3980 #ifdef DEBUG_COMPLETION
3981     monitor_printf(cur_mon, "input='%s' path='%s' prefix='%s'\n",
3982                    input, path, file_prefix);
3983 #endif
3984     ffs = opendir(path);
3985     if (!ffs)
3986         return;
3987     for(;;) {
3988         struct stat sb;
3989         d = readdir(ffs);
3990         if (!d)
3991             break;
3992
3993         if (strcmp(d->d_name, ".") == 0 || strcmp(d->d_name, "..") == 0) {
3994             continue;
3995         }
3996
3997         if (strstart(d->d_name, file_prefix, NULL)) {
3998             memcpy(file, input, input_path_len);
3999             if (input_path_len < sizeof(file))
4000                 pstrcpy(file + input_path_len, sizeof(file) - input_path_len,
4001                         d->d_name);
4002             /* stat the file to find out if it's a directory.
4003              * In that case add a slash to speed up typing long paths
4004              */
4005             stat(file, &sb);
4006             if(S_ISDIR(sb.st_mode))
4007                 pstrcat(file, sizeof(file), "/");
4008             readline_add_completion(cur_mon->rs, file);
4009         }
4010     }
4011     closedir(ffs);
4012 }
4013
4014 static void block_completion_it(void *opaque, BlockDriverState *bs)
4015 {
4016     const char *name = bdrv_get_device_name(bs);
4017     const char *input = opaque;
4018
4019     if (input[0] == '\0' ||
4020         !strncmp(name, (char *)input, strlen(input))) {
4021         readline_add_completion(cur_mon->rs, name);
4022     }
4023 }
4024
4025 /* NOTE: this parser is an approximate form of the real command parser */
4026 static void parse_cmdline(const char *cmdline,
4027                          int *pnb_args, char **args)
4028 {
4029     const char *p;
4030     int nb_args, ret;
4031     char buf[1024];
4032
4033     p = cmdline;
4034     nb_args = 0;
4035     for(;;) {
4036         while (qemu_isspace(*p))
4037             p++;
4038         if (*p == '\0')
4039             break;
4040         if (nb_args >= MAX_ARGS)
4041             break;
4042         ret = get_str(buf, sizeof(buf), &p);
4043         args[nb_args] = qemu_strdup(buf);
4044         nb_args++;
4045         if (ret < 0)
4046             break;
4047     }
4048     *pnb_args = nb_args;
4049 }
4050
4051 static const char *next_arg_type(const char *typestr)
4052 {
4053     const char *p = strchr(typestr, ':');
4054     return (p != NULL ? ++p : typestr);
4055 }
4056
4057 static void monitor_find_completion(const char *cmdline)
4058 {
4059     const char *cmdname;
4060     char *args[MAX_ARGS];
4061     int nb_args, i, len;
4062     const char *ptype, *str;
4063     const mon_cmd_t *cmd;
4064     const KeyDef *key;
4065
4066     parse_cmdline(cmdline, &nb_args, args);
4067 #ifdef DEBUG_COMPLETION
4068     for(i = 0; i < nb_args; i++) {
4069         monitor_printf(cur_mon, "arg%d = '%s'\n", i, (char *)args[i]);
4070     }
4071 #endif
4072
4073     /* if the line ends with a space, it means we want to complete the
4074        next arg */
4075     len = strlen(cmdline);
4076     if (len > 0 && qemu_isspace(cmdline[len - 1])) {
4077         if (nb_args >= MAX_ARGS) {
4078             goto cleanup;
4079         }
4080         args[nb_args++] = qemu_strdup("");
4081     }
4082     if (nb_args <= 1) {
4083         /* command completion */
4084         if (nb_args == 0)
4085             cmdname = "";
4086         else
4087             cmdname = args[0];
4088         readline_set_completion_index(cur_mon->rs, strlen(cmdname));
4089         for(cmd = mon_cmds; cmd->name != NULL; cmd++) {
4090             cmd_completion(cmdname, cmd->name);
4091         }
4092     } else {
4093         /* find the command */
4094         for (cmd = mon_cmds; cmd->name != NULL; cmd++) {
4095             if (compare_cmd(args[0], cmd->name)) {
4096                 break;
4097             }
4098         }
4099         if (!cmd->name) {
4100             goto cleanup;
4101         }
4102
4103         ptype = next_arg_type(cmd->args_type);
4104         for(i = 0; i < nb_args - 2; i++) {
4105             if (*ptype != '\0') {
4106                 ptype = next_arg_type(ptype);
4107                 while (*ptype == '?')
4108                     ptype = next_arg_type(ptype);
4109             }
4110         }
4111         str = args[nb_args - 1];
4112         if (*ptype == '-' && ptype[1] != '\0') {
4113             ptype = next_arg_type(ptype);
4114         }
4115         switch(*ptype) {
4116         case 'F':
4117             /* file completion */
4118             readline_set_completion_index(cur_mon->rs, strlen(str));
4119             file_completion(str);
4120             break;
4121         case 'B':
4122             /* block device name completion */
4123             readline_set_completion_index(cur_mon->rs, strlen(str));
4124             bdrv_iterate(block_completion_it, (void *)str);
4125             break;
4126         case 's':
4127             /* XXX: more generic ? */
4128             if (!strcmp(cmd->name, "info")) {
4129                 readline_set_completion_index(cur_mon->rs, strlen(str));
4130                 for(cmd = info_cmds; cmd->name != NULL; cmd++) {
4131                     cmd_completion(str, cmd->name);
4132                 }
4133             } else if (!strcmp(cmd->name, "sendkey")) {
4134                 char *sep = strrchr(str, '-');
4135                 if (sep)
4136                     str = sep + 1;
4137                 readline_set_completion_index(cur_mon->rs, strlen(str));
4138                 for(key = key_defs; key->name != NULL; key++) {
4139                     cmd_completion(str, key->name);
4140                 }
4141             } else if (!strcmp(cmd->name, "help|?")) {
4142                 readline_set_completion_index(cur_mon->rs, strlen(str));
4143                 for (cmd = mon_cmds; cmd->name != NULL; cmd++) {
4144                     cmd_completion(str, cmd->name);
4145                 }
4146             }
4147             break;
4148         default:
4149             break;
4150         }
4151     }
4152
4153 cleanup:
4154     for (i = 0; i < nb_args; i++) {
4155         qemu_free(args[i]);
4156     }
4157 }
4158
4159 static int monitor_can_read(void *opaque)
4160 {
4161     Monitor *mon = opaque;
4162
4163     return (mon->suspend_cnt == 0) ? 1 : 0;
4164 }
4165
4166 static int invalid_qmp_mode(const Monitor *mon, const char *cmd_name)
4167 {
4168     int is_cap = compare_cmd(cmd_name, "qmp_capabilities");
4169     return (qmp_cmd_mode(mon) ? is_cap : !is_cap);
4170 }
4171
4172 /*
4173  * Argument validation rules:
4174  *
4175  * 1. The argument must exist in cmd_args qdict
4176  * 2. The argument type must be the expected one
4177  *
4178  * Special case: If the argument doesn't exist in cmd_args and
4179  *               the QMP_ACCEPT_UNKNOWNS flag is set, then the
4180  *               checking is skipped for it.
4181  */
4182 static int check_client_args_type(const QDict *client_args,
4183                                   const QDict *cmd_args, int flags)
4184 {
4185     const QDictEntry *ent;
4186
4187     for (ent = qdict_first(client_args); ent;ent = qdict_next(client_args,ent)){
4188         QObject *obj;
4189         QString *arg_type;
4190         const QObject *client_arg = qdict_entry_value(ent);
4191         const char *client_arg_name = qdict_entry_key(ent);
4192
4193         obj = qdict_get(cmd_args, client_arg_name);
4194         if (!obj) {
4195             if (flags & QMP_ACCEPT_UNKNOWNS) {
4196                 /* handler accepts unknowns */
4197                 continue;
4198             }
4199             /* client arg doesn't exist */
4200             qerror_report(QERR_INVALID_PARAMETER, client_arg_name);
4201             return -1;
4202         }
4203
4204         arg_type = qobject_to_qstring(obj);
4205         assert(arg_type != NULL);
4206
4207         /* check if argument's type is correct */
4208         switch (qstring_get_str(arg_type)[0]) {
4209         case 'F':
4210         case 'B':
4211         case 's':
4212             if (qobject_type(client_arg) != QTYPE_QSTRING) {
4213                 qerror_report(QERR_INVALID_PARAMETER_TYPE, client_arg_name,
4214                               "string");
4215                 return -1;
4216             }
4217         break;
4218         case 'i':
4219         case 'l':
4220         case 'M':
4221         case 'o':
4222             if (qobject_type(client_arg) != QTYPE_QINT) {
4223                 qerror_report(QERR_INVALID_PARAMETER_TYPE, client_arg_name,
4224                               "int");
4225                 return -1;
4226             }
4227             break;
4228         case 'T':
4229             if (qobject_type(client_arg) != QTYPE_QINT &&
4230                 qobject_type(client_arg) != QTYPE_QFLOAT) {
4231                 qerror_report(QERR_INVALID_PARAMETER_TYPE, client_arg_name,
4232                               "number");
4233                return -1;
4234             }
4235             break;
4236         case 'b':
4237         case '-':
4238             if (qobject_type(client_arg) != QTYPE_QBOOL) {
4239                 qerror_report(QERR_INVALID_PARAMETER_TYPE, client_arg_name,
4240                               "bool");
4241                return -1;
4242             }
4243             break;
4244         case 'O':
4245             assert(flags & QMP_ACCEPT_UNKNOWNS);
4246             break;
4247         case '/':
4248         case '.':
4249             /*
4250              * These types are not supported by QMP and thus are not
4251              * handled here. Fall through.
4252              */
4253         default:
4254             abort();
4255         }
4256     }
4257
4258     return 0;
4259 }
4260
4261 /*
4262  * - Check if the client has passed all mandatory args
4263  * - Set special flags for argument validation
4264  */
4265 static int check_mandatory_args(const QDict *cmd_args,
4266                                 const QDict *client_args, int *flags)
4267 {
4268     const QDictEntry *ent;
4269
4270     for (ent = qdict_first(cmd_args); ent; ent = qdict_next(cmd_args, ent)) {
4271         const char *cmd_arg_name = qdict_entry_key(ent);
4272         QString *type = qobject_to_qstring(qdict_entry_value(ent));
4273         assert(type != NULL);
4274
4275         if (qstring_get_str(type)[0] == 'O') {
4276             assert((*flags & QMP_ACCEPT_UNKNOWNS) == 0);
4277             *flags |= QMP_ACCEPT_UNKNOWNS;
4278         } else if (qstring_get_str(type)[0] != '-' &&
4279                    qstring_get_str(type)[1] != '?' &&
4280                    !qdict_haskey(client_args, cmd_arg_name)) {
4281             qerror_report(QERR_MISSING_PARAMETER, cmd_arg_name);
4282             return -1;
4283         }
4284     }
4285
4286     return 0;
4287 }
4288
4289 static QDict *qdict_from_args_type(const char *args_type)
4290 {
4291     int i;
4292     QDict *qdict;
4293     QString *key, *type, *cur_qs;
4294
4295     assert(args_type != NULL);
4296
4297     qdict = qdict_new();
4298
4299     if (args_type == NULL || args_type[0] == '\0') {
4300         /* no args, empty qdict */
4301         goto out;
4302     }
4303
4304     key = qstring_new();
4305     type = qstring_new();
4306
4307     cur_qs = key;
4308
4309     for (i = 0;; i++) {
4310         switch (args_type[i]) {
4311             case ',':
4312             case '\0':
4313                 qdict_put(qdict, qstring_get_str(key), type);
4314                 QDECREF(key);
4315                 if (args_type[i] == '\0') {
4316                     goto out;
4317                 }
4318                 type = qstring_new(); /* qdict has ref */
4319                 cur_qs = key = qstring_new();
4320                 break;
4321             case ':':
4322                 cur_qs = type;
4323                 break;
4324             default:
4325                 qstring_append_chr(cur_qs, args_type[i]);
4326                 break;
4327         }
4328     }
4329
4330 out:
4331     return qdict;
4332 }
4333
4334 /*
4335  * Client argument checking rules:
4336  *
4337  * 1. Client must provide all mandatory arguments
4338  * 2. Each argument provided by the client must be expected
4339  * 3. Each argument provided by the client must have the type expected
4340  *    by the command
4341  */
4342 static int qmp_check_client_args(const mon_cmd_t *cmd, QDict *client_args)
4343 {
4344     int flags, err;
4345     QDict *cmd_args;
4346
4347     cmd_args = qdict_from_args_type(cmd->args_type);
4348
4349     flags = 0;
4350     err = check_mandatory_args(cmd_args, client_args, &flags);
4351     if (err) {
4352         goto out;
4353     }
4354
4355     err = check_client_args_type(client_args, cmd_args, flags);
4356
4357 out:
4358     QDECREF(cmd_args);
4359     return err;
4360 }
4361
4362 /*
4363  * Input object checking rules
4364  *
4365  * 1. Input object must be a dict
4366  * 2. The "execute" key must exist
4367  * 3. The "execute" key must be a string
4368  * 4. If the "arguments" key exists, it must be a dict
4369  * 5. If the "id" key exists, it can be anything (ie. json-value)
4370  * 6. Any argument not listed above is considered invalid
4371  */
4372 static QDict *qmp_check_input_obj(QObject *input_obj)
4373 {
4374     const QDictEntry *ent;
4375     int has_exec_key = 0;
4376     QDict *input_dict;
4377
4378     if (qobject_type(input_obj) != QTYPE_QDICT) {
4379         qerror_report(QERR_QMP_BAD_INPUT_OBJECT, "object");
4380         return NULL;
4381     }
4382
4383     input_dict = qobject_to_qdict(input_obj);
4384
4385     for (ent = qdict_first(input_dict); ent; ent = qdict_next(input_dict, ent)){
4386         const char *arg_name = qdict_entry_key(ent);
4387         const QObject *arg_obj = qdict_entry_value(ent);
4388
4389         if (!strcmp(arg_name, "execute")) {
4390             if (qobject_type(arg_obj) != QTYPE_QSTRING) {
4391                 qerror_report(QERR_QMP_BAD_INPUT_OBJECT_MEMBER, "execute",
4392                               "string");
4393                 return NULL;
4394             }
4395             has_exec_key = 1;
4396         } else if (!strcmp(arg_name, "arguments")) {
4397             if (qobject_type(arg_obj) != QTYPE_QDICT) {
4398                 qerror_report(QERR_QMP_BAD_INPUT_OBJECT_MEMBER, "arguments",
4399                               "object");
4400                 return NULL;
4401             }
4402         } else if (!strcmp(arg_name, "id")) {
4403             /* FIXME: check duplicated IDs for async commands */
4404         } else {
4405             qerror_report(QERR_QMP_EXTRA_MEMBER, arg_name);
4406             return NULL;
4407         }
4408     }
4409
4410     if (!has_exec_key) {
4411         qerror_report(QERR_QMP_BAD_INPUT_OBJECT, "execute");
4412         return NULL;
4413     }
4414
4415     return input_dict;
4416 }
4417
4418 static void qmp_call_query_cmd(Monitor *mon, const mon_cmd_t *cmd)
4419 {
4420     QObject *ret_data = NULL;
4421
4422     if (handler_is_async(cmd)) {
4423         qmp_async_info_handler(mon, cmd);
4424         if (monitor_has_error(mon)) {
4425             monitor_protocol_emitter(mon, NULL);
4426         }
4427     } else {
4428         cmd->mhandler.info_new(mon, &ret_data);
4429         if (ret_data) {
4430             monitor_protocol_emitter(mon, ret_data);
4431             qobject_decref(ret_data);
4432         }
4433     }
4434 }
4435
4436 static void qmp_call_cmd(Monitor *mon, const mon_cmd_t *cmd,
4437                          const QDict *params)
4438 {
4439     int ret;
4440     QObject *data = NULL;
4441
4442     mon_print_count_init(mon);
4443
4444     ret = cmd->mhandler.cmd_new(mon, params, &data);
4445     handler_audit(mon, cmd, ret);
4446     monitor_protocol_emitter(mon, data);
4447     qobject_decref(data);
4448 }
4449
4450 static void handle_qmp_command(JSONMessageParser *parser, QList *tokens)
4451 {
4452     int err;
4453     QObject *obj;
4454     QDict *input, *args;
4455     const mon_cmd_t *cmd;
4456     Monitor *mon = cur_mon;
4457     const char *cmd_name, *query_cmd;
4458
4459     query_cmd = NULL;
4460     args = input = NULL;
4461
4462     obj = json_parser_parse(tokens, NULL);
4463     if (!obj) {
4464         // FIXME: should be triggered in json_parser_parse()
4465         qerror_report(QERR_JSON_PARSING);
4466         goto err_out;
4467     }
4468
4469     input = qmp_check_input_obj(obj);
4470     if (!input) {
4471         qobject_decref(obj);
4472         goto err_out;
4473     }
4474
4475     mon->mc->id = qdict_get(input, "id");
4476     qobject_incref(mon->mc->id);
4477
4478     cmd_name = qdict_get_str(input, "execute");
4479     if (invalid_qmp_mode(mon, cmd_name)) {
4480         qerror_report(QERR_COMMAND_NOT_FOUND, cmd_name);
4481         goto err_out;
4482     }
4483
4484     if (strstart(cmd_name, "query-", &query_cmd)) {
4485         cmd = qmp_find_query_cmd(query_cmd);
4486     } else {
4487         cmd = qmp_find_cmd(cmd_name);
4488     }
4489
4490     if (!cmd) {
4491         qerror_report(QERR_COMMAND_NOT_FOUND, cmd_name);
4492         goto err_out;
4493     }
4494
4495     obj = qdict_get(input, "arguments");
4496     if (!obj) {
4497         args = qdict_new();
4498     } else {
4499         args = qobject_to_qdict(obj);
4500         QINCREF(args);
4501     }
4502
4503     err = qmp_check_client_args(cmd, args);
4504     if (err < 0) {
4505         goto err_out;
4506     }
4507
4508     if (query_cmd) {
4509         qmp_call_query_cmd(mon, cmd);
4510     } else if (handler_is_async(cmd)) {
4511         err = qmp_async_cmd_handler(mon, cmd, args);
4512         if (err) {
4513             /* emit the error response */
4514             goto err_out;
4515         }
4516     } else {
4517         qmp_call_cmd(mon, cmd, args);
4518     }
4519
4520     goto out;
4521
4522 err_out:
4523     monitor_protocol_emitter(mon, NULL);
4524 out:
4525     QDECREF(input);
4526     QDECREF(args);
4527 }
4528
4529 /**
4530  * monitor_control_read(): Read and handle QMP input
4531  */
4532 static void monitor_control_read(void *opaque, const uint8_t *buf, int size)
4533 {
4534     Monitor *old_mon = cur_mon;
4535
4536     cur_mon = opaque;
4537
4538     json_message_parser_feed(&cur_mon->mc->parser, (const char *) buf, size);
4539
4540     cur_mon = old_mon;
4541 }
4542
4543 static void monitor_read(void *opaque, const uint8_t *buf, int size)
4544 {
4545     Monitor *old_mon = cur_mon;
4546     int i;
4547
4548     cur_mon = opaque;
4549
4550     if (cur_mon->rs) {
4551         for (i = 0; i < size; i++)
4552             readline_handle_byte(cur_mon->rs, buf[i]);
4553     } else {
4554         if (size == 0 || buf[size - 1] != 0)
4555             monitor_printf(cur_mon, "corrupted command\n");
4556         else
4557             handle_user_command(cur_mon, (char *)buf);
4558     }
4559
4560     cur_mon = old_mon;
4561 }
4562
4563 static void monitor_command_cb(Monitor *mon, const char *cmdline, void *opaque)
4564 {
4565     monitor_suspend(mon);
4566     handle_user_command(mon, cmdline);
4567     monitor_resume(mon);
4568 }
4569
4570 int monitor_suspend(Monitor *mon)
4571 {
4572     if (!mon->rs)
4573         return -ENOTTY;
4574     mon->suspend_cnt++;
4575     return 0;
4576 }
4577
4578 void monitor_resume(Monitor *mon)
4579 {
4580     if (!mon->rs)
4581         return;
4582     if (--mon->suspend_cnt == 0)
4583         readline_show_prompt(mon->rs);
4584 }
4585
4586 static QObject *get_qmp_greeting(void)
4587 {
4588     QObject *ver;
4589
4590     do_info_version(NULL, &ver);
4591     return qobject_from_jsonf("{'QMP':{'version': %p,'capabilities': []}}",ver);
4592 }
4593
4594 /**
4595  * monitor_control_event(): Print QMP gretting
4596  */
4597 static void monitor_control_event(void *opaque, int event)
4598 {
4599     QObject *data;
4600     Monitor *mon = opaque;
4601
4602     switch (event) {
4603     case CHR_EVENT_OPENED:
4604         mon->mc->command_mode = 0;
4605         json_message_parser_init(&mon->mc->parser, handle_qmp_command);
4606         data = get_qmp_greeting();
4607         monitor_json_emitter(mon, data);
4608         qobject_decref(data);
4609         break;
4610     case CHR_EVENT_CLOSED:
4611         json_message_parser_destroy(&mon->mc->parser);
4612         break;
4613     }
4614 }
4615
4616 static void monitor_event(void *opaque, int event)
4617 {
4618     Monitor *mon = opaque;
4619
4620     switch (event) {
4621     case CHR_EVENT_MUX_IN:
4622         mon->mux_out = 0;
4623         if (mon->reset_seen) {
4624             readline_restart(mon->rs);
4625             monitor_resume(mon);
4626             monitor_flush(mon);
4627         } else {
4628             mon->suspend_cnt = 0;
4629         }
4630         break;
4631
4632     case CHR_EVENT_MUX_OUT:
4633         if (mon->reset_seen) {
4634             if (mon->suspend_cnt == 0) {
4635                 monitor_printf(mon, "\n");
4636             }
4637             monitor_flush(mon);
4638             monitor_suspend(mon);
4639         } else {
4640             mon->suspend_cnt++;
4641         }
4642         mon->mux_out = 1;
4643         break;
4644
4645     case CHR_EVENT_OPENED:
4646         monitor_printf(mon, "QEMU %s monitor - type 'help' for more "
4647                        "information\n", QEMU_VERSION);
4648         if (!mon->mux_out) {
4649             readline_show_prompt(mon->rs);
4650         }
4651         mon->reset_seen = 1;
4652         break;
4653     }
4654 }
4655
4656
4657 /*
4658  * Local variables:
4659  *  c-indent-level: 4
4660  *  c-basic-offset: 4
4661  *  tab-width: 8
4662  * End:
4663  */
4664
4665 void monitor_init(CharDriverState *chr, int flags)
4666 {
4667     static int is_first_init = 1;
4668     Monitor *mon;
4669
4670     if (is_first_init) {
4671         key_timer = qemu_new_timer(vm_clock, release_keys, NULL);
4672         is_first_init = 0;
4673     }
4674
4675     mon = qemu_mallocz(sizeof(*mon));
4676
4677     mon->chr = chr;
4678     mon->flags = flags;
4679     if (flags & MONITOR_USE_READLINE) {
4680         mon->rs = readline_init(mon, monitor_find_completion);
4681         monitor_read_command(mon, 0);
4682     }
4683
4684     if (monitor_ctrl_mode(mon)) {
4685         mon->mc = qemu_mallocz(sizeof(MonitorControl));
4686         /* Control mode requires special handlers */
4687         qemu_chr_add_handlers(chr, monitor_can_read, monitor_control_read,
4688                               monitor_control_event, mon);
4689     } else {
4690         qemu_chr_add_handlers(chr, monitor_can_read, monitor_read,
4691                               monitor_event, mon);
4692     }
4693
4694     QLIST_INSERT_HEAD(&mon_list, mon, entry);
4695     if (!default_mon || (flags & MONITOR_IS_DEFAULT))
4696         default_mon = mon;
4697 }
4698
4699 static void bdrv_password_cb(Monitor *mon, const char *password, void *opaque)
4700 {
4701     BlockDriverState *bs = opaque;
4702     int ret = 0;
4703
4704     if (bdrv_set_key(bs, password) != 0) {
4705         monitor_printf(mon, "invalid password\n");
4706         ret = -EPERM;
4707     }
4708     if (mon->password_completion_cb)
4709         mon->password_completion_cb(mon->password_opaque, ret);
4710
4711     monitor_read_command(mon, 1);
4712 }
4713
4714 int monitor_read_bdrv_key_start(Monitor *mon, BlockDriverState *bs,
4715                                 BlockDriverCompletionFunc *completion_cb,
4716                                 void *opaque)
4717 {
4718     int err;
4719
4720     if (!bdrv_key_required(bs)) {
4721         if (completion_cb)
4722             completion_cb(opaque, 0);
4723         return 0;
4724     }
4725
4726     if (monitor_ctrl_mode(mon)) {
4727         qerror_report(QERR_DEVICE_ENCRYPTED, bdrv_get_device_name(bs));
4728         return -1;
4729     }
4730
4731     monitor_printf(mon, "%s (%s) is encrypted.\n", bdrv_get_device_name(bs),
4732                    bdrv_get_encrypted_filename(bs));
4733
4734     mon->password_completion_cb = completion_cb;
4735     mon->password_opaque = opaque;
4736
4737     err = monitor_read_password(mon, bdrv_password_cb, bs);
4738
4739     if (err && completion_cb)
4740         completion_cb(opaque, err);
4741
4742     return err;
4743 }