monitor.c

   1 /*
   2  * QEMU monitor
   3  *
   4  * Copyright (c) 2003-2004 Fabrice Bellard
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a copy
   7  * of this software and associated documentation files (the "Software"), to deal
   8  * in the Software without restriction, including without limitation the rights
   9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10  * copies of the Software, and to permit persons to whom the Software is
  11  * furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22  * THE SOFTWARE.
  23  */
  24 #include <dirent.h>
  25 #include "hw/hw.h"
  26 #include "hw/qdev.h"
  27 #include "hw/usb.h"
  28 #include "hw/pcmcia.h"
  29 #include "hw/pc.h"
  30 #include "hw/pci.h"
  31 #include "hw/watchdog.h"
  32 #include "hw/loader.h"
  33 #include "gdbstub.h"
  34 #include "net.h"
  35 #include "net/slirp.h"
  36 #include "qemu-char.h"
  37 #include "sysemu.h"
  38 #include "monitor.h"
  39 #include "readline.h"
  40 #include "console.h"
  41 #include "block.h"
  42 #include "audio/audio.h"
  43 #include "disas.h"
  44 #include "balloon.h"
  45 #include "qemu-timer.h"
  46 #include "migration.h"
  47 #include "kvm.h"
  48 #include "acl.h"
  49 #include "qint.h"
  50 #include "qlist.h"
  51 #include "qdict.h"
  52 #include "qbool.h"
  53 #include "qstring.h"
  54 #include "qerror.h"
  55 #include "qjson.h"
  56 #include "json-streamer.h"
  57 #include "json-parser.h"
  58 #include "osdep.h"
  59
  60 //#define DEBUG
  61 //#define DEBUG_COMPLETION
  62
  63 /*
  64  * Supported types:
  65  *
  66  * 'F'          filename
  67  * 'B'          block device name
  68  * 's'          string (accept optional quote)
  69  * 'i'          32 bit integer
  70  * 'l'          target long (32 or 64 bit)
  71  * '/'          optional gdb-like print format (like "/10x")
  72  *
  73  * '?'          optional type (for all types, except '/')
  74  * '.'          other form of optional type (for 'i' and 'l')
  75  * '-'          optional parameter (eg. '-f')
  76  *
  77  */
  78
  79 typedef struct mon_cmd_t {
  80     const char *name;
  81     const char *args_type;
  82     const char *params;
  83     const char *help;
  84     void (*user_print)(Monitor *mon, const QObject *data);
  85     union {
  86         void (*info)(Monitor *mon);
  87         void (*info_new)(Monitor *mon, QObject **ret_data);
  88         void (*cmd)(Monitor *mon, const QDict *qdict);
  89         void (*cmd_new)(Monitor *mon, const QDict *params, QObject **ret_data);
  90     } mhandler;
  91 } mon_cmd_t;
  92
  93 /* file descriptors passed via SCM_RIGHTS */
  94 typedef struct mon_fd_t mon_fd_t;
  95 struct mon_fd_t {
  96     char *name;
  97     int fd;
  98     QLIST_ENTRY(mon_fd_t) next;
  99 };
 100
 101 typedef struct MonitorControl {
 102     QObject *id;
 103     int print_enabled;
 104     JSONMessageParser parser;
 105 } MonitorControl;
 106
 107 struct Monitor {
 108     CharDriverState *chr;
 109     int mux_out;
 110     int reset_seen;
 111     int flags;
 112     int suspend_cnt;
 113     uint8_t outbuf[1024];
 114     int outbuf_index;
 115     ReadLineState *rs;
 116     MonitorControl *mc;
 117     CPUState *mon_cpu;
 118     BlockDriverCompletionFunc *password_completion_cb;
 119     void *password_opaque;
 120     QError *error;
 121     QLIST_HEAD(,mon_fd_t) fds;
 122     QLIST_ENTRY(Monitor) entry;
 123 };
 124
 125 static QLIST_HEAD(mon_list, Monitor) mon_list;
 126
 127 static const mon_cmd_t mon_cmds[];
 128 static const mon_cmd_t info_cmds[];
 129
 130 Monitor *cur_mon = NULL;
 131
 132 static void monitor_command_cb(Monitor *mon, const char *cmdline,
 133                                void *opaque);
 134
 135 /* Return true if in control mode, false otherwise */
 136 static inline int monitor_ctrl_mode(const Monitor *mon)
 137 {
 138     return (mon->flags & MONITOR_USE_CONTROL);
 139 }
 140
 141 static void monitor_read_command(Monitor *mon, int show_prompt)
 142 {
 143     readline_start(mon->rs, "(qemu) ", 0, monitor_command_cb, NULL);
 144     if (show_prompt)
 145         readline_show_prompt(mon->rs);
 146 }
 147
 148 static int monitor_read_password(Monitor *mon, ReadLineFunc *readline_func,
 149                                  void *opaque)
 150 {
 151     if (monitor_ctrl_mode(mon)) {
 152         qemu_error_new(QERR_MISSING_PARAMETER, "password");
 153         return -EINVAL;
 154     } else if (mon->rs) {
 155         readline_start(mon->rs, "Password: ", 1, readline_func, opaque);
 156         /* prompt is printed on return from the command handler */
 157         return 0;
 158     } else {
 159         monitor_printf(mon, "terminal does not support password prompting\n");
 160         return -ENOTTY;
 161     }
 162 }
 163
 164 void monitor_flush(Monitor *mon)
 165 {
 166     if (mon && mon->outbuf_index != 0 && !mon->mux_out) {
 167         qemu_chr_write(mon->chr, mon->outbuf, mon->outbuf_index);
 168         mon->outbuf_index = 0;
 169     }
 170 }
 171
 172 /* flush at every end of line or if the buffer is full */
 173 static void monitor_puts(Monitor *mon, const char *str)
 174 {
 175     char c;
 176
 177     if (!mon)
 178         return;
 179
 180     for(;;) {
 181         c = *str++;
 182         if (c == '\0')
 183             break;
 184         if (c == '\n')
 185             mon->outbuf[mon->outbuf_index++] = '\r';
 186         mon->outbuf[mon->outbuf_index++] = c;
 187         if (mon->outbuf_index >= (sizeof(mon->outbuf) - 1)
 188             || c == '\n')
 189             monitor_flush(mon);
 190     }
 191 }
 192
 193 void monitor_vprintf(Monitor *mon, const char *fmt, va_list ap)
 194 {
 195     if (mon->mc && !mon->mc->print_enabled) {
 196         qemu_error_new(QERR_UNDEFINED_ERROR);
 197     } else {
 198         char buf[4096];
 199         vsnprintf(buf, sizeof(buf), fmt, ap);
 200         monitor_puts(mon, buf);
 201     }
 202 }
 203
 204 void monitor_printf(Monitor *mon, const char *fmt, ...)
 205 {
 206     va_list ap;
 207     va_start(ap, fmt);
 208     monitor_vprintf(mon, fmt, ap);
 209     va_end(ap);
 210 }
 211
 212 void monitor_print_filename(Monitor *mon, const char *filename)
 213 {
 214     int i;
 215
 216     for (i = 0; filename[i]; i++) {
 217         switch (filename[i]) {
 218         case ' ':
 219         case '"':
 220         case '\\':
 221             monitor_printf(mon, "\\%c", filename[i]);
 222             break;
 223         case '\t':
 224             monitor_printf(mon, "\\t");
 225             break;
 226         case '\r':
 227             monitor_printf(mon, "\\r");
 228             break;
 229         case '\n':
 230             monitor_printf(mon, "\\n");
 231             break;
 232         default:
 233             monitor_printf(mon, "%c", filename[i]);
 234             break;
 235         }
 236     }
 237 }
 238
 239 static int monitor_fprintf(FILE *stream, const char *fmt, ...)
 240 {
 241     va_list ap;
 242     va_start(ap, fmt);
 243     monitor_vprintf((Monitor *)stream, fmt, ap);
 244     va_end(ap);
 245     return 0;
 246 }
 247
 248 static void monitor_user_noop(Monitor *mon, const QObject *data) { }
 249
 250 static inline int monitor_handler_ported(const mon_cmd_t *cmd)
 251 {
 252     return cmd->user_print != NULL;
 253 }
 254
 255 static inline int monitor_has_error(const Monitor *mon)
 256 {
 257     return mon->error != NULL;
 258 }
 259
 260 static void monitor_json_emitter(Monitor *mon, const QObject *data)
 261 {
 262     QString *json;
 263
 264     json = qobject_to_json(data);
 265     assert(json != NULL);
 266
 267     mon->mc->print_enabled = 1;
 268     monitor_printf(mon, "%s\n", qstring_get_str(json));
 269     mon->mc->print_enabled = 0;
 270
 271     QDECREF(json);
 272 }
 273
 274 static void monitor_protocol_emitter(Monitor *mon, QObject *data)
 275 {
 276     QDict *qmp;
 277
 278     qmp = qdict_new();
 279
 280     if (!monitor_has_error(mon)) {
 281         /* success response */
 282         if (data) {
 283             qobject_incref(data);
 284             qdict_put_obj(qmp, "return", data);
 285         } else {
 286             qdict_put(qmp, "return", qstring_from_str("OK"));
 287         }
 288     } else {
 289         /* error response */
 290         qdict_put(mon->error->error, "desc", qerror_human(mon->error));
 291         qdict_put(qmp, "error", mon->error->error);
 292         QINCREF(mon->error->error);
 293         QDECREF(mon->error);
 294         mon->error = NULL;
 295     }
 296
 297     if (mon->mc->id) {
 298         qdict_put_obj(qmp, "id", mon->mc->id);
 299         mon->mc->id = NULL;
 300     }
 301
 302     monitor_json_emitter(mon, QOBJECT(qmp));
 303     QDECREF(qmp);
 304 }
 305
 306 static void timestamp_put(QDict *qdict)
 307 {
 308     int err;
 309     QObject *obj;
 310     qemu_timeval tv;
 311
 312     err = qemu_gettimeofday(&tv);
 313     if (err < 0)
 314         return;
 315
 316     obj = qobject_from_jsonf("{ 'seconds': %" PRId64 ", "
 317                                 "'microseconds': %" PRId64 " }",
 318                                 (int64_t) tv.tv_sec, (int64_t) tv.tv_usec);
 319     assert(obj != NULL);
 320
 321     qdict_put_obj(qdict, "timestamp", obj);
 322 }
 323
 324 /**
 325  * monitor_protocol_event(): Generate a Monitor event
 326  *
 327  * Event-specific data can be emitted through the (optional) 'data' parameter.
 328  */
 329 void monitor_protocol_event(MonitorEvent event, QObject *data)
 330 {
 331     QDict *qmp;
 332     const char *event_name;
 333     Monitor *mon = cur_mon;
 334
 335     assert(event < QEVENT_MAX);
 336
 337     if (!monitor_ctrl_mode(mon))
 338         return;
 339
 340     switch (event) {
 341         case QEVENT_DEBUG:
 342             event_name = "DEBUG";
 343             break;
 344         case QEVENT_SHUTDOWN:
 345             event_name = "SHUTDOWN";
 346             break;
 347         case QEVENT_RESET:
 348             event_name = "RESET";
 349             break;
 350         case QEVENT_POWERDOWN:
 351             event_name = "POWERDOWN";
 352             break;
 353         case QEVENT_STOP:
 354             event_name = "STOP";
 355             break;
 356         default:
 357             abort();
 358             break;
 359     }
 360
 361     qmp = qdict_new();
 362     timestamp_put(qmp);
 363     qdict_put(qmp, "event", qstring_from_str(event_name));
 364     if (data)
 365         qdict_put_obj(qmp, "data", data);
 366
 367     monitor_json_emitter(mon, QOBJECT(qmp));
 368     QDECREF(qmp);
 369 }
 370
 371 static int compare_cmd(const char *name, const char *list)
 372 {
 373     const char *p, *pstart;
 374     int len;
 375     len = strlen(name);
 376     p = list;
 377     for(;;) {
 378         pstart = p;
 379         p = strchr(p, '|');
 380         if (!p)
 381             p = pstart + strlen(pstart);
 382         if ((p - pstart) == len && !memcmp(pstart, name, len))
 383             return 1;
 384         if (*p == '\0')
 385             break;
 386         p++;
 387     }
 388     return 0;
 389 }
 390
 391 static void help_cmd_dump(Monitor *mon, const mon_cmd_t *cmds,
 392                           const char *prefix, const char *name)
 393 {
 394     const mon_cmd_t *cmd;
 395
 396     for(cmd = cmds; cmd->name != NULL; cmd++) {
 397         if (!name || !strcmp(name, cmd->name))
 398             monitor_printf(mon, "%s%s %s -- %s\n", prefix, cmd->name,
 399                            cmd->params, cmd->help);
 400     }
 401 }
 402
 403 static void help_cmd(Monitor *mon, const char *name)
 404 {
 405     if (name && !strcmp(name, "info")) {
 406         help_cmd_dump(mon, info_cmds, "info ", NULL);
 407     } else {
 408         help_cmd_dump(mon, mon_cmds, "", name);
 409         if (name && !strcmp(name, "log")) {
 410             const CPULogItem *item;
 411             monitor_printf(mon, "Log items (comma separated):\n");
 412             monitor_printf(mon, "%-10s %s\n", "none", "remove all logs");
 413             for(item = cpu_log_items; item->mask != 0; item++) {
 414                 monitor_printf(mon, "%-10s %s\n", item->name, item->help);
 415             }
 416         }
 417     }
 418 }
 419
 420 static void do_help_cmd(Monitor *mon, const QDict *qdict)
 421 {
 422     help_cmd(mon, qdict_get_try_str(qdict, "name"));
 423 }
 424
 425 static void do_commit(Monitor *mon, const QDict *qdict)
 426 {
 427     int all_devices;
 428     DriveInfo *dinfo;
 429     const char *device = qdict_get_str(qdict, "device");
 430
 431     all_devices = !strcmp(device, "all");
 432     QTAILQ_FOREACH(dinfo, &drives, next) {
 433         if (!all_devices)
 434             if (strcmp(bdrv_get_device_name(dinfo->bdrv), device))
 435                 continue;
 436         bdrv_commit(dinfo->bdrv);
 437     }
 438 }
 439
 440 static void do_info(Monitor *mon, const QDict *qdict, QObject **ret_data)
 441 {
 442     const mon_cmd_t *cmd;
 443     const char *item = qdict_get_try_str(qdict, "item");
 444
 445     if (!item) {
 446         assert(monitor_ctrl_mode(mon) == 0);
 447         goto help;
 448     }
 449
 450     for (cmd = info_cmds; cmd->name != NULL; cmd++) {
 451         if (compare_cmd(item, cmd->name))
 452             break;
 453     }
 454
 455     if (cmd->name == NULL) {
 456         if (monitor_ctrl_mode(mon)) {
 457             qemu_error_new(QERR_COMMAND_NOT_FOUND, item);
 458             return;
 459         }
 460         goto help;
 461     }
 462
 463     if (monitor_handler_ported(cmd)) {
 464         cmd->mhandler.info_new(mon, ret_data);
 465
 466         if (!monitor_ctrl_mode(mon)) {
 467             /*
 468              * User Protocol function is called here, Monitor Protocol is
 469              * handled by monitor_call_handler()
 470              */
 471             if (*ret_data)
 472                 cmd->user_print(mon, *ret_data);
 473         }
 474     } else {
 475         if (monitor_ctrl_mode(mon)) {
 476             /* handler not converted yet */
 477             qemu_error_new(QERR_COMMAND_NOT_FOUND, item);
 478         } else {
 479             cmd->mhandler.info(mon);
 480         }
 481     }
 482
 483     return;
 484
 485 help:
 486     help_cmd(mon, "info");
 487 }
 488
 489 static void do_info_version_print(Monitor *mon, const QObject *data)
 490 {
 491     QDict *qdict;
 492
 493     qdict = qobject_to_qdict(data);
 494
 495     monitor_printf(mon, "%s%s\n", qdict_get_str(qdict, "qemu"),
 496                                   qdict_get_str(qdict, "package"));
 497 }
 498
 499 /**
 500  * do_info_version(): Show QEMU version
 501  *
 502  * Return a QDict with the following information:
 503  *
 504  * - "qemu": QEMU's version
 505  * - "package": package's version
 506  *
 507  * Example:
 508  *
 509  * { "qemu": "0.11.50", "package": "" }
 510  */
 511 static void do_info_version(Monitor *mon, QObject **ret_data)
 512 {
 513     *ret_data = qobject_from_jsonf("{ 'qemu': %s, 'package': %s }",
 514                                    QEMU_VERSION, QEMU_PKGVERSION);
 515 }
 516
 517 static void do_info_name(Monitor *mon)
 518 {
 519     if (qemu_name)
 520         monitor_printf(mon, "%s\n", qemu_name);
 521 }
 522
 523 static QObject *get_cmd_dict(const char *name)
 524 {
 525     const char *p;
 526
 527     /* Remove '|' from some commands */
 528     p = strchr(name, '|');
 529     if (p) {
 530         p++;
 531     } else {
 532         p = name;
 533     }
 534
 535     return qobject_from_jsonf("{ 'name': %s }", p);
 536 }
 537
 538 /**
 539  * do_info_commands(): List QMP available commands
 540  *
 541  * Each command is represented by a QDict, the returned QObject is a QList
 542  * of all commands.
 543  *
 544  * The QDict contains:
 545  *
 546  * - "name": command's name
 547  *
 548  * Example:
 549  *
 550  * { [ { "name": "query-balloon" }, { "name": "system_powerdown" } ] }
 551  */
 552 static void do_info_commands(Monitor *mon, QObject **ret_data)
 553 {
 554     QList *cmd_list;
 555     const mon_cmd_t *cmd;
 556
 557     cmd_list = qlist_new();
 558
 559     for (cmd = mon_cmds; cmd->name != NULL; cmd++) {
 560         if (monitor_handler_ported(cmd) && !compare_cmd(cmd->name, "info")) {
 561             qlist_append_obj(cmd_list, get_cmd_dict(cmd->name));
 562         }
 563     }
 564
 565     for (cmd = info_cmds; cmd->name != NULL; cmd++) {
 566         if (monitor_handler_ported(cmd)) {
 567             char buf[128];
 568             snprintf(buf, sizeof(buf), "query-%s", cmd->name);
 569             qlist_append_obj(cmd_list, get_cmd_dict(buf));
 570         }
 571     }
 572
 573     *ret_data = QOBJECT(cmd_list);
 574 }
 575
 576 #if defined(TARGET_I386)
 577 static void do_info_hpet(Monitor *mon)
 578 {
 579     monitor_printf(mon, "HPET is %s by QEMU\n",
 580                    (no_hpet) ? "disabled" : "enabled");
 581 }
 582 #endif
 583
 584 static void do_info_uuid(Monitor *mon)
 585 {
 586     monitor_printf(mon, UUID_FMT "\n", qemu_uuid[0], qemu_uuid[1],
 587                    qemu_uuid[2], qemu_uuid[3], qemu_uuid[4], qemu_uuid[5],
 588                    qemu_uuid[6], qemu_uuid[7], qemu_uuid[8], qemu_uuid[9],
 589                    qemu_uuid[10], qemu_uuid[11], qemu_uuid[12], qemu_uuid[13],
 590                    qemu_uuid[14], qemu_uuid[15]);
 591 }
 592
 593 /* get the current CPU defined by the user */
 594 static int mon_set_cpu(int cpu_index)
 595 {
 596     CPUState *env;
 597
 598     for(env = first_cpu; env != NULL; env = env->next_cpu) {
 599         if (env->cpu_index == cpu_index) {
 600             cur_mon->mon_cpu = env;
 601             return 0;
 602         }
 603     }
 604     return -1;
 605 }
 606
 607 static CPUState *mon_get_cpu(void)
 608 {
 609     if (!cur_mon->mon_cpu) {
 610         mon_set_cpu(0);
 611     }
 612     cpu_synchronize_state(cur_mon->mon_cpu);
 613     return cur_mon->mon_cpu;
 614 }
 615
 616 static void do_info_registers(Monitor *mon)
 617 {
 618     CPUState *env;
 619     env = mon_get_cpu();
 620     if (!env)
 621         return;
 622 #ifdef TARGET_I386
 623     cpu_dump_state(env, (FILE *)mon, monitor_fprintf,
 624                    X86_DUMP_FPU);
 625 #else
 626     cpu_dump_state(env, (FILE *)mon, monitor_fprintf,
 627                    0);
 628 #endif
 629 }
 630
 631 static void print_cpu_iter(QObject *obj, void *opaque)
 632 {
 633     QDict *cpu;
 634     int active = ' ';
 635     Monitor *mon = opaque;
 636
 637     assert(qobject_type(obj) == QTYPE_QDICT);
 638     cpu = qobject_to_qdict(obj);
 639
 640     if (qdict_get_bool(cpu, "current")) {
 641         active = '*';
 642     }
 643
 644     monitor_printf(mon, "%c CPU #%d: ", active, (int)qdict_get_int(cpu, "CPU"));
 645
 646 #if defined(TARGET_I386)
 647     monitor_printf(mon, "pc=0x" TARGET_FMT_lx,
 648                    (target_ulong) qdict_get_int(cpu, "pc"));
 649 #elif defined(TARGET_PPC)
 650     monitor_printf(mon, "nip=0x" TARGET_FMT_lx,
 651                    (target_long) qdict_get_int(cpu, "nip"));
 652 #elif defined(TARGET_SPARC)
 653     monitor_printf(mon, "pc=0x " TARGET_FMT_lx,
 654                    (target_long) qdict_get_int(cpu, "pc"));
 655     monitor_printf(mon, "npc=0x" TARGET_FMT_lx,
 656                    (target_long) qdict_get_int(cpu, "npc"));
 657 #elif defined(TARGET_MIPS)
 658     monitor_printf(mon, "PC=0x" TARGET_FMT_lx,
 659                    (target_long) qdict_get_int(cpu, "PC"));
 660 #endif
 661
 662     if (qdict_get_bool(cpu, "halted")) {
 663         monitor_printf(mon, " (halted)");
 664     }
 665
 666     monitor_printf(mon, "\n");
 667 }
 668
 669 static void monitor_print_cpus(Monitor *mon, const QObject *data)
 670 {
 671     QList *cpu_list;
 672
 673     assert(qobject_type(data) == QTYPE_QLIST);
 674     cpu_list = qobject_to_qlist(data);
 675     qlist_iter(cpu_list, print_cpu_iter, mon);
 676 }
 677
 678 /**
 679  * do_info_cpus(): Show CPU information
 680  *
 681  * Return a QList. Each CPU is represented by a QDict, which contains:
 682  *
 683  * - "cpu": CPU index
 684  * - "current": true if this is the current CPU, false otherwise
 685  * - "halted": true if the cpu is halted, false otherwise
 686  * - Current program counter. The key's name depends on the architecture:
 687  *      "pc": i386/x86)64
 688  *      "nip": PPC
 689  *      "pc" and "npc": sparc
 690  *      "PC": mips
 691  *
 692  * Example:
 693  *
 694  * [ { "CPU": 0, "current": true, "halted": false, "pc": 3227107138 },
 695  *   { "CPU": 1, "current": false, "halted": true, "pc": 7108165 } ]
 696  */
 697 static void do_info_cpus(Monitor *mon, QObject **ret_data)
 698 {
 699     CPUState *env;
 700     QList *cpu_list;
 701
 702     cpu_list = qlist_new();
 703
 704     /* just to set the default cpu if not already done */
 705     mon_get_cpu();
 706
 707     for(env = first_cpu; env != NULL; env = env->next_cpu) {
 708         QDict *cpu;
 709         QObject *obj;
 710
 711         cpu_synchronize_state(env);
 712
 713         obj = qobject_from_jsonf("{ 'CPU': %d, 'current': %i, 'halted': %i }",
 714                                  env->cpu_index, env == mon->mon_cpu,
 715                                  env->halted);
 716         assert(obj != NULL);
 717
 718         cpu = qobject_to_qdict(obj);
 719
 720 #if defined(TARGET_I386)
 721         qdict_put(cpu, "pc", qint_from_int(env->eip + env->segs[R_CS].base));
 722 #elif defined(TARGET_PPC)
 723         qdict_put(cpu, "nip", qint_from_int(env->nip));
 724 #elif defined(TARGET_SPARC)
 725         qdict_put(cpu, "pc", qint_from_int(env->pc));
 726         qdict_put(cpu, "npc", qint_from_int(env->npc));
 727 #elif defined(TARGET_MIPS)
 728         qdict_put(cpu, "PC", qint_from_int(env->active_tc.PC));
 729 #endif
 730
 731         qlist_append(cpu_list, cpu);
 732     }
 733
 734     *ret_data = QOBJECT(cpu_list);
 735 }
 736
 737 static void do_cpu_set(Monitor *mon, const QDict *qdict)
 738 {
 739     int index = qdict_get_int(qdict, "index");
 740     if (mon_set_cpu(index) < 0)
 741         monitor_printf(mon, "Invalid CPU index\n");
 742 }
 743
 744 static void do_info_jit(Monitor *mon)
 745 {
 746     dump_exec_info((FILE *)mon, monitor_fprintf);
 747 }
 748
 749 static void do_info_history(Monitor *mon)
 750 {
 751     int i;
 752     const char *str;
 753
 754     if (!mon->rs)
 755         return;
 756     i = 0;
 757     for(;;) {
 758         str = readline_get_history(mon->rs, i);
 759         if (!str)
 760             break;
 761         monitor_printf(mon, "%d: '%s'\n", i, str);
 762         i++;
 763     }
 764 }
 765
 766 #if defined(TARGET_PPC)
 767 /* XXX: not implemented in other targets */
 768 static void do_info_cpu_stats(Monitor *mon)
 769 {
 770     CPUState *env;
 771
 772     env = mon_get_cpu();
 773     cpu_dump_statistics(env, (FILE *)mon, &monitor_fprintf, 0);
 774 }
 775 #endif
 776
 777 /**
 778  * do_quit(): Quit QEMU execution
 779  */
 780 static void do_quit(Monitor *mon, const QDict *qdict, QObject **ret_data)
 781 {
 782     exit(0);
 783 }
 784
 785 static int eject_device(Monitor *mon, BlockDriverState *bs, int force)
 786 {
 787     if (bdrv_is_inserted(bs)) {
 788         if (!force) {
 789             if (!bdrv_is_removable(bs)) {
 790                 qemu_error_new(QERR_DEVICE_NOT_REMOVABLE,
 791                                bdrv_get_device_name(bs));
 792                 return -1;
 793             }
 794             if (bdrv_is_locked(bs)) {
 795                 qemu_error_new(QERR_DEVICE_LOCKED, bdrv_get_device_name(bs));
 796                 return -1;
 797             }
 798         }
 799         bdrv_close(bs);
 800     }
 801     return 0;
 802 }
 803
 804 static void do_eject(Monitor *mon, const QDict *qdict, QObject **ret_data)
 805 {
 806     BlockDriverState *bs;
 807     int force = qdict_get_int(qdict, "force");
 808     const char *filename = qdict_get_str(qdict, "filename");
 809
 810     bs = bdrv_find(filename);
 811     if (!bs) {
 812         qemu_error_new(QERR_DEVICE_NOT_FOUND, filename);
 813         return;
 814     }
 815     eject_device(mon, bs, force);
 816 }
 817
 818 static void do_block_set_passwd(Monitor *mon, const QDict *qdict,
 819                                 QObject **ret_data)
 820 {
 821     BlockDriverState *bs;
 822
 823     bs = bdrv_find(qdict_get_str(qdict, "device"));
 824     if (!bs) {
 825         qemu_error_new(QERR_DEVICE_NOT_FOUND, qdict_get_str(qdict, "device"));
 826         return;
 827     }
 828
 829     if (bdrv_set_key(bs, qdict_get_str(qdict, "password")) < 0) {
 830         qemu_error_new(QERR_INVALID_PASSWORD);
 831     }
 832 }
 833
 834 static void do_change_block(Monitor *mon, const char *device,
 835                             const char *filename, const char *fmt)
 836 {
 837     BlockDriverState *bs;
 838     BlockDriver *drv = NULL;
 839
 840     bs = bdrv_find(device);
 841     if (!bs) {
 842         qemu_error_new(QERR_DEVICE_NOT_FOUND, device);
 843         return;
 844     }
 845     if (fmt) {
 846         drv = bdrv_find_whitelisted_format(fmt);
 847         if (!drv) {
 848             qemu_error_new(QERR_INVALID_BLOCK_FORMAT, fmt);
 849             return;
 850         }
 851     }
 852     if (eject_device(mon, bs, 0) < 0)
 853         return;
 854     bdrv_open2(bs, filename, 0, drv);
 855     monitor_read_bdrv_key_start(mon, bs, NULL, NULL);
 856 }
 857
 858 static void change_vnc_password(const char *password)
 859 {
 860     if (vnc_display_password(NULL, password) < 0)
 861         qemu_error_new(QERR_SET_PASSWD_FAILED);
 862
 863 }
 864
 865 static void change_vnc_password_cb(Monitor *mon, const char *password,
 866                                    void *opaque)
 867 {
 868     change_vnc_password(password);
 869     monitor_read_command(mon, 1);
 870 }
 871
 872 static void do_change_vnc(Monitor *mon, const char *target, const char *arg)
 873 {
 874     if (strcmp(target, "passwd") == 0 ||
 875         strcmp(target, "password") == 0) {
 876         if (arg) {
 877             char password[9];
 878             strncpy(password, arg, sizeof(password));
 879             password[sizeof(password) - 1] = '\0';
 880             change_vnc_password(password);
 881         } else {
 882             monitor_read_password(mon, change_vnc_password_cb, NULL);
 883         }
 884     } else {
 885         if (vnc_display_open(NULL, target) < 0)
 886             qemu_error_new(QERR_VNC_SERVER_FAILED, target);
 887     }
 888 }
 889
 890 /**
 891  * do_change(): Change a removable medium, or VNC configuration
 892  */
 893 static void do_change(Monitor *mon, const QDict *qdict, QObject **ret_data)
 894 {
 895     const char *device = qdict_get_str(qdict, "device");
 896     const char *target = qdict_get_str(qdict, "target");
 897     const char *arg = qdict_get_try_str(qdict, "arg");
 898     if (strcmp(device, "vnc") == 0) {
 899         do_change_vnc(mon, target, arg);
 900     } else {
 901         do_change_block(mon, device, target, arg);
 902     }
 903 }
 904
 905 static void do_screen_dump(Monitor *mon, const QDict *qdict)
 906 {
 907     vga_hw_screen_dump(qdict_get_str(qdict, "filename"));
 908 }
 909
 910 static void do_logfile(Monitor *mon, const QDict *qdict)
 911 {
 912     cpu_set_log_filename(qdict_get_str(qdict, "filename"));
 913 }
 914
 915 static void do_log(Monitor *mon, const QDict *qdict)
 916 {
 917     int mask;
 918     const char *items = qdict_get_str(qdict, "items");
 919
 920     if (!strcmp(items, "none")) {
 921         mask = 0;
 922     } else {
 923         mask = cpu_str_to_log_mask(items);
 924         if (!mask) {
 925             help_cmd(mon, "log");
 926             return;
 927         }
 928     }
 929     cpu_set_log(mask);
 930 }
 931
 932 static void do_singlestep(Monitor *mon, const QDict *qdict)
 933 {
 934     const char *option = qdict_get_try_str(qdict, "option");
 935     if (!option || !strcmp(option, "on")) {
 936         singlestep = 1;
 937     } else if (!strcmp(option, "off")) {
 938         singlestep = 0;
 939     } else {
 940         monitor_printf(mon, "unexpected option %s\n", option);
 941     }
 942 }
 943
 944 /**
 945  * do_stop(): Stop VM execution
 946  */
 947 static void do_stop(Monitor *mon, const QDict *qdict, QObject **ret_data)
 948 {
 949     vm_stop(EXCP_INTERRUPT);
 950 }
 951
 952 static void encrypted_bdrv_it(void *opaque, BlockDriverState *bs);
 953
 954 struct bdrv_iterate_context {
 955     Monitor *mon;
 956     int err;
 957 };
 958
 959 /**
 960  * do_cont(): Resume emulation.
 961  */
 962 static void do_cont(Monitor *mon, const QDict *qdict, QObject **ret_data)
 963 {
 964     struct bdrv_iterate_context context = { mon, 0 };
 965
 966     bdrv_iterate(encrypted_bdrv_it, &context);
 967     /* only resume the vm if all keys are set and valid */
 968     if (!context.err)
 969         vm_start();
 970 }
 971
 972 static void bdrv_key_cb(void *opaque, int err)
 973 {
 974     Monitor *mon = opaque;
 975
 976     /* another key was set successfully, retry to continue */
 977     if (!err)
 978         do_cont(mon, NULL, NULL);
 979 }
 980
 981 static void encrypted_bdrv_it(void *opaque, BlockDriverState *bs)
 982 {
 983     struct bdrv_iterate_context *context = opaque;
 984
 985     if (!context->err && bdrv_key_required(bs)) {
 986         context->err = -EBUSY;
 987         monitor_read_bdrv_key_start(context->mon, bs, bdrv_key_cb,
 988                                     context->mon);
 989     }
 990 }
 991
 992 static void do_gdbserver(Monitor *mon, const QDict *qdict)
 993 {
 994     const char *device = qdict_get_try_str(qdict, "device");
 995     if (!device)
 996         device = "tcp::" DEFAULT_GDBSTUB_PORT;
 997     if (gdbserver_start(device) < 0) {
 998         monitor_printf(mon, "Could not open gdbserver on device '%s'\n",
 999                        device);
1000     } else if (strcmp(device, "none") == 0) {
1001         monitor_printf(mon, "Disabled gdbserver\n");
1002     } else {
1003         monitor_printf(mon, "Waiting for gdb connection on device '%s'\n",
1004                        device);
1005     }
1006 }
1007
1008 static void do_watchdog_action(Monitor *mon, const QDict *qdict)
1009 {
1010     const char *action = qdict_get_str(qdict, "action");
1011     if (select_watchdog_action(action) == -1) {
1012         monitor_printf(mon, "Unknown watchdog action '%s'\n", action);
1013     }
1014 }
1015
1016 static void monitor_printc(Monitor *mon, int c)
1017 {
1018     monitor_printf(mon, "'");
1019     switch(c) {
1020     case '\'':
1021         monitor_printf(mon, "\\'");
1022         break;
1023     case '\\':
1024         monitor_printf(mon, "\\\\");
1025         break;
1026     case '\n':
1027         monitor_printf(mon, "\\n");
1028         break;
1029     case '\r':
1030         monitor_printf(mon, "\\r");
1031         break;
1032     default:
1033         if (c >= 32 && c <= 126) {
1034             monitor_printf(mon, "%c", c);
1035         } else {
1036             monitor_printf(mon, "\\x%02x", c);
1037         }
1038         break;
1039     }
1040     monitor_printf(mon, "'");
1041 }
1042
1043 static void memory_dump(Monitor *mon, int count, int format, int wsize,
1044                         target_phys_addr_t addr, int is_physical)
1045 {
1046     CPUState *env;
1047     int nb_per_line, l, line_size, i, max_digits, len;
1048     uint8_t buf[16];
1049     uint64_t v;
1050
1051     if (format == 'i') {
1052         int flags;
1053         flags = 0;
1054         env = mon_get_cpu();
1055         if (!env && !is_physical)
1056             return;
1057 #ifdef TARGET_I386
1058         if (wsize == 2) {
1059             flags = 1;
1060         } else if (wsize == 4) {
1061             flags = 0;
1062         } else {
1063             /* as default we use the current CS size */
1064             flags = 0;
1065             if (env) {
1066 #ifdef TARGET_X86_64
1067                 if ((env->efer & MSR_EFER_LMA) &&
1068                     (env->segs[R_CS].flags & DESC_L_MASK))
1069                     flags = 2;
1070                 else
1071 #endif
1072                 if (!(env->segs[R_CS].flags & DESC_B_MASK))
1073                     flags = 1;
1074             }
1075         }
1076 #endif
1077         monitor_disas(mon, env, addr, count, is_physical, flags);
1078         return;
1079     }
1080
1081     len = wsize * count;
1082     if (wsize == 1)
1083         line_size = 8;
1084     else
1085         line_size = 16;
1086     nb_per_line = line_size / wsize;
1087     max_digits = 0;
1088
1089     switch(format) {
1090     case 'o':
1091         max_digits = (wsize * 8 + 2) / 3;
1092         break;
1093     default:
1094     case 'x':
1095         max_digits = (wsize * 8) / 4;
1096         break;
1097     case 'u':
1098     case 'd':
1099         max_digits = (wsize * 8 * 10 + 32) / 33;
1100         break;
1101     case 'c':
1102         wsize = 1;
1103         break;
1104     }
1105
1106     while (len > 0) {
1107         if (is_physical)
1108             monitor_printf(mon, TARGET_FMT_plx ":", addr);
1109         else
1110             monitor_printf(mon, TARGET_FMT_lx ":", (target_ulong)addr);
1111         l = len;
1112         if (l > line_size)
1113             l = line_size;
1114         if (is_physical) {
1115             cpu_physical_memory_rw(addr, buf, l, 0);
1116         } else {
1117             env = mon_get_cpu();
1118             if (!env)
1119                 break;
1120             if (cpu_memory_rw_debug(env, addr, buf, l, 0) < 0) {
1121                 monitor_printf(mon, " Cannot access memory\n");
1122                 break;
1123             }
1124         }
1125         i = 0;
1126         while (i < l) {
1127             switch(wsize) {
1128             default:
1129             case 1:
1130                 v = ldub_raw(buf + i);
1131                 break;
1132             case 2:
1133                 v = lduw_raw(buf + i);
1134                 break;
1135             case 4:
1136                 v = (uint32_t)ldl_raw(buf + i);
1137                 break;
1138             case 8:
1139                 v = ldq_raw(buf + i);
1140                 break;
1141             }
1142             monitor_printf(mon, " ");
1143             switch(format) {
1144             case 'o':
1145                 monitor_printf(mon, "%#*" PRIo64, max_digits, v);
1146                 break;
1147             case 'x':
1148                 monitor_printf(mon, "0x%0*" PRIx64, max_digits, v);
1149                 break;
1150             case 'u':
1151                 monitor_printf(mon, "%*" PRIu64, max_digits, v);
1152                 break;
1153             case 'd':
1154                 monitor_printf(mon, "%*" PRId64, max_digits, v);
1155                 break;
1156             case 'c':
1157                 monitor_printc(mon, v);
1158                 break;
1159             }
1160             i += wsize;
1161         }
1162         monitor_printf(mon, "\n");
1163         addr += l;
1164         len -= l;
1165     }
1166 }
1167
1168 static void do_memory_dump(Monitor *mon, const QDict *qdict)
1169 {
1170     int count = qdict_get_int(qdict, "count");
1171     int format = qdict_get_int(qdict, "format");
1172     int size = qdict_get_int(qdict, "size");
1173     target_long addr = qdict_get_int(qdict, "addr");
1174
1175     memory_dump(mon, count, format, size, addr, 0);
1176 }
1177
1178 static void do_physical_memory_dump(Monitor *mon, const QDict *qdict)
1179 {
1180     int count = qdict_get_int(qdict, "count");
1181     int format = qdict_get_int(qdict, "format");
1182     int size = qdict_get_int(qdict, "size");
1183     target_phys_addr_t addr = qdict_get_int(qdict, "addr");
1184
1185     memory_dump(mon, count, format, size, addr, 1);
1186 }
1187
1188 static void do_print(Monitor *mon, const QDict *qdict)
1189 {
1190     int format = qdict_get_int(qdict, "format");
1191     target_phys_addr_t val = qdict_get_int(qdict, "val");
1192
1193 #if TARGET_PHYS_ADDR_BITS == 32
1194     switch(format) {
1195     case 'o':
1196         monitor_printf(mon, "%#o", val);
1197         break;
1198     case 'x':
1199         monitor_printf(mon, "%#x", val);
1200         break;
1201     case 'u':
1202         monitor_printf(mon, "%u", val);
1203         break;
1204     default:
1205     case 'd':
1206         monitor_printf(mon, "%d", val);
1207         break;
1208     case 'c':
1209         monitor_printc(mon, val);
1210         break;
1211     }
1212 #else
1213     switch(format) {
1214     case 'o':
1215         monitor_printf(mon, "%#" PRIo64, val);
1216         break;
1217     case 'x':
1218         monitor_printf(mon, "%#" PRIx64, val);
1219         break;
1220     case 'u':
1221         monitor_printf(mon, "%" PRIu64, val);
1222         break;
1223     default:
1224     case 'd':
1225         monitor_printf(mon, "%" PRId64, val);
1226         break;
1227     case 'c':
1228         monitor_printc(mon, val);
1229         break;
1230     }
1231 #endif
1232     monitor_printf(mon, "\n");
1233 }
1234
1235 static void do_memory_save(Monitor *mon, const QDict *qdict, QObject **ret_data)
1236 {
1237     FILE *f;
1238     uint32_t size = qdict_get_int(qdict, "size");
1239     const char *filename = qdict_get_str(qdict, "filename");
1240     target_long addr = qdict_get_int(qdict, "val");
1241     uint32_t l;
1242     CPUState *env;
1243     uint8_t buf[1024];
1244
1245     env = mon_get_cpu();
1246     if (!env)
1247         return;
1248
1249     f = fopen(filename, "wb");
1250     if (!f) {
1251         monitor_printf(mon, "could not open '%s'\n", filename);
1252         return;
1253     }
1254     while (size != 0) {
1255         l = sizeof(buf);
1256         if (l > size)
1257             l = size;
1258         cpu_memory_rw_debug(env, addr, buf, l, 0);
1259         fwrite(buf, 1, l, f);
1260         addr += l;
1261         size -= l;
1262     }
1263     fclose(f);
1264 }
1265
1266 static void do_physical_memory_save(Monitor *mon, const QDict *qdict,
1267                                     QObject **ret_data)
1268 {
1269     FILE *f;
1270     uint32_t l;
1271     uint8_t buf[1024];
1272     uint32_t size = qdict_get_int(qdict, "size");
1273     const char *filename = qdict_get_str(qdict, "filename");
1274     target_phys_addr_t addr = qdict_get_int(qdict, "val");
1275
1276     f = fopen(filename, "wb");
1277     if (!f) {
1278         monitor_printf(mon, "could not open '%s'\n", filename);
1279         return;
1280     }
1281     while (size != 0) {
1282         l = sizeof(buf);
1283         if (l > size)
1284             l = size;
1285         cpu_physical_memory_rw(addr, buf, l, 0);
1286         fwrite(buf, 1, l, f);
1287         fflush(f);
1288         addr += l;
1289         size -= l;
1290     }
1291     fclose(f);
1292 }
1293
1294 static void do_sum(Monitor *mon, const QDict *qdict)
1295 {
1296     uint32_t addr;
1297     uint8_t buf[1];
1298     uint16_t sum;
1299     uint32_t start = qdict_get_int(qdict, "start");
1300     uint32_t size = qdict_get_int(qdict, "size");
1301
1302     sum = 0;
1303     for(addr = start; addr < (start + size); addr++) {
1304         cpu_physical_memory_rw(addr, buf, 1, 0);
1305         /* BSD sum algorithm ('sum' Unix command) */
1306         sum = (sum >> 1) | (sum << 15);
1307         sum += buf[0];
1308     }
1309     monitor_printf(mon, "%05d\n", sum);
1310 }
1311
1312 typedef struct {
1313     int keycode;
1314     const char *name;
1315 } KeyDef;
1316
1317 static const KeyDef key_defs[] = {
1318     { 0x2a, "shift" },
1319     { 0x36, "shift_r" },
1320
1321     { 0x38, "alt" },
1322     { 0xb8, "alt_r" },
1323     { 0x64, "altgr" },
1324     { 0xe4, "altgr_r" },
1325     { 0x1d, "ctrl" },
1326     { 0x9d, "ctrl_r" },
1327
1328     { 0xdd, "menu" },
1329
1330     { 0x01, "esc" },
1331
1332     { 0x02, "1" },
1333     { 0x03, "2" },
1334     { 0x04, "3" },
1335     { 0x05, "4" },
1336     { 0x06, "5" },
1337     { 0x07, "6" },
1338     { 0x08, "7" },
1339     { 0x09, "8" },
1340     { 0x0a, "9" },
1341     { 0x0b, "0" },
1342     { 0x0c, "minus" },
1343     { 0x0d, "equal" },
1344     { 0x0e, "backspace" },
1345
1346     { 0x0f, "tab" },
1347     { 0x10, "q" },
1348     { 0x11, "w" },
1349     { 0x12, "e" },
1350     { 0x13, "r" },
1351     { 0x14, "t" },
1352     { 0x15, "y" },
1353     { 0x16, "u" },
1354     { 0x17, "i" },
1355     { 0x18, "o" },
1356     { 0x19, "p" },
1357
1358     { 0x1c, "ret" },
1359
1360     { 0x1e, "a" },
1361     { 0x1f, "s" },
1362     { 0x20, "d" },
1363     { 0x21, "f" },
1364     { 0x22, "g" },
1365     { 0x23, "h" },
1366     { 0x24, "j" },
1367     { 0x25, "k" },
1368     { 0x26, "l" },
1369
1370     { 0x2c, "z" },
1371     { 0x2d, "x" },
1372     { 0x2e, "c" },
1373     { 0x2f, "v" },
1374     { 0x30, "b" },
1375     { 0x31, "n" },
1376     { 0x32, "m" },
1377     { 0x33, "comma" },
1378     { 0x34, "dot" },
1379     { 0x35, "slash" },
1380
1381     { 0x37, "asterisk" },
1382
1383     { 0x39, "spc" },
1384     { 0x3a, "caps_lock" },
1385     { 0x3b, "f1" },
1386     { 0x3c, "f2" },
1387     { 0x3d, "f3" },
1388     { 0x3e, "f4" },
1389     { 0x3f, "f5" },
1390     { 0x40, "f6" },
1391     { 0x41, "f7" },
1392     { 0x42, "f8" },
1393     { 0x43, "f9" },
1394     { 0x44, "f10" },
1395     { 0x45, "num_lock" },
1396     { 0x46, "scroll_lock" },
1397
1398     { 0xb5, "kp_divide" },
1399     { 0x37, "kp_multiply" },
1400     { 0x4a, "kp_subtract" },
1401     { 0x4e, "kp_add" },
1402     { 0x9c, "kp_enter" },
1403     { 0x53, "kp_decimal" },
1404     { 0x54, "sysrq" },
1405
1406     { 0x52, "kp_0" },
1407     { 0x4f, "kp_1" },
1408     { 0x50, "kp_2" },
1409     { 0x51, "kp_3" },
1410     { 0x4b, "kp_4" },
1411     { 0x4c, "kp_5" },
1412     { 0x4d, "kp_6" },
1413     { 0x47, "kp_7" },
1414     { 0x48, "kp_8" },
1415     { 0x49, "kp_9" },
1416
1417     { 0x56, "<" },
1418
1419     { 0x57, "f11" },
1420     { 0x58, "f12" },
1421
1422     { 0xb7, "print" },
1423
1424     { 0xc7, "home" },
1425     { 0xc9, "pgup" },
1426     { 0xd1, "pgdn" },
1427     { 0xcf, "end" },
1428
1429     { 0xcb, "left" },
1430     { 0xc8, "up" },
1431     { 0xd0, "down" },
1432     { 0xcd, "right" },
1433
1434     { 0xd2, "insert" },
1435     { 0xd3, "delete" },
1436 #if defined(TARGET_SPARC) && !defined(TARGET_SPARC64)
1437     { 0xf0, "stop" },
1438     { 0xf1, "again" },
1439     { 0xf2, "props" },
1440     { 0xf3, "undo" },
1441     { 0xf4, "front" },
1442     { 0xf5, "copy" },
1443     { 0xf6, "open" },
1444     { 0xf7, "paste" },
1445     { 0xf8, "find" },
1446     { 0xf9, "cut" },
1447     { 0xfa, "lf" },
1448     { 0xfb, "help" },
1449     { 0xfc, "meta_l" },
1450     { 0xfd, "meta_r" },
1451     { 0xfe, "compose" },
1452 #endif
1453     { 0, NULL },
1454 };
1455
1456 static int get_keycode(const char *key)
1457 {
1458     const KeyDef *p;
1459     char *endp;
1460     int ret;
1461
1462     for(p = key_defs; p->name != NULL; p++) {
1463         if (!strcmp(key, p->name))
1464             return p->keycode;
1465     }
1466     if (strstart(key, "0x", NULL)) {
1467         ret = strtoul(key, &endp, 0);
1468         if (*endp == '\0' && ret >= 0x01 && ret <= 0xff)
1469             return ret;
1470     }
1471     return -1;
1472 }
1473
1474 #define MAX_KEYCODES 16
1475 static uint8_t keycodes[MAX_KEYCODES];
1476 static int nb_pending_keycodes;
1477 static QEMUTimer *key_timer;
1478
1479 static void release_keys(void *opaque)
1480 {
1481     int keycode;
1482
1483     while (nb_pending_keycodes > 0) {
1484         nb_pending_keycodes--;
1485         keycode = keycodes[nb_pending_keycodes];
1486         if (keycode & 0x80)
1487             kbd_put_keycode(0xe0);
1488         kbd_put_keycode(keycode | 0x80);
1489     }
1490 }
1491
1492 static void do_sendkey(Monitor *mon, const QDict *qdict)
1493 {
1494     char keyname_buf[16];
1495     char *separator;
1496     int keyname_len, keycode, i;
1497     const char *string = qdict_get_str(qdict, "string");
1498     int has_hold_time = qdict_haskey(qdict, "hold_time");
1499     int hold_time = qdict_get_try_int(qdict, "hold_time", -1);
1500
1501     if (nb_pending_keycodes > 0) {
1502         qemu_del_timer(key_timer);
1503         release_keys(NULL);
1504     }
1505     if (!has_hold_time)
1506         hold_time = 100;
1507     i = 0;
1508     while (1) {
1509         separator = strchr(string, '-');
1510         keyname_len = separator ? separator - string : strlen(string);
1511         if (keyname_len > 0) {
1512             pstrcpy(keyname_buf, sizeof(keyname_buf), string);
1513             if (keyname_len > sizeof(keyname_buf) - 1) {
1514                 monitor_printf(mon, "invalid key: '%s...'\n", keyname_buf);
1515                 return;
1516             }
1517             if (i == MAX_KEYCODES) {
1518                 monitor_printf(mon, "too many keys\n");
1519                 return;
1520             }
1521             keyname_buf[keyname_len] = 0;
1522             keycode = get_keycode(keyname_buf);
1523             if (keycode < 0) {
1524                 monitor_printf(mon, "unknown key: '%s'\n", keyname_buf);
1525                 return;
1526             }
1527             keycodes[i++] = keycode;
1528         }
1529         if (!separator)
1530             break;
1531         string = separator + 1;
1532     }
1533     nb_pending_keycodes = i;
1534     /* key down events */
1535     for (i = 0; i < nb_pending_keycodes; i++) {
1536         keycode = keycodes[i];
1537         if (keycode & 0x80)
1538             kbd_put_keycode(0xe0);
1539         kbd_put_keycode(keycode & 0x7f);
1540     }
1541     /* delayed key up events */
1542     qemu_mod_timer(key_timer, qemu_get_clock(vm_clock) +
1543                    muldiv64(get_ticks_per_sec(), hold_time, 1000));
1544 }
1545
1546 static int mouse_button_state;
1547
1548 static void do_mouse_move(Monitor *mon, const QDict *qdict)
1549 {
1550     int dx, dy, dz;
1551     const char *dx_str = qdict_get_str(qdict, "dx_str");
1552     const char *dy_str = qdict_get_str(qdict, "dy_str");
1553     const char *dz_str = qdict_get_try_str(qdict, "dz_str");
1554     dx = strtol(dx_str, NULL, 0);
1555     dy = strtol(dy_str, NULL, 0);
1556     dz = 0;
1557     if (dz_str)
1558         dz = strtol(dz_str, NULL, 0);
1559     kbd_mouse_event(dx, dy, dz, mouse_button_state);
1560 }
1561
1562 static void do_mouse_button(Monitor *mon, const QDict *qdict)
1563 {
1564     int button_state = qdict_get_int(qdict, "button_state");
1565     mouse_button_state = button_state;
1566     kbd_mouse_event(0, 0, 0, mouse_button_state);
1567 }
1568
1569 static void do_ioport_read(Monitor *mon, const QDict *qdict)
1570 {
1571     int size = qdict_get_int(qdict, "size");
1572     int addr = qdict_get_int(qdict, "addr");
1573     int has_index = qdict_haskey(qdict, "index");
1574     uint32_t val;
1575     int suffix;
1576
1577     if (has_index) {
1578         int index = qdict_get_int(qdict, "index");
1579         cpu_outb(addr & IOPORTS_MASK, index & 0xff);
1580         addr++;
1581     }
1582     addr &= 0xffff;
1583
1584     switch(size) {
1585     default:
1586     case 1:
1587         val = cpu_inb(addr);
1588         suffix = 'b';
1589         break;
1590     case 2:
1591         val = cpu_inw(addr);
1592         suffix = 'w';
1593         break;
1594     case 4:
1595         val = cpu_inl(addr);
1596         suffix = 'l';
1597         break;
1598     }
1599     monitor_printf(mon, "port%c[0x%04x] = %#0*x\n",
1600                    suffix, addr, size * 2, val);
1601 }
1602
1603 static void do_ioport_write(Monitor *mon, const QDict *qdict)
1604 {
1605     int size = qdict_get_int(qdict, "size");
1606     int addr = qdict_get_int(qdict, "addr");
1607     int val = qdict_get_int(qdict, "val");
1608
1609     addr &= IOPORTS_MASK;
1610
1611     switch (size) {
1612     default:
1613     case 1:
1614         cpu_outb(addr, val);
1615         break;
1616     case 2:
1617         cpu_outw(addr, val);
1618         break;
1619     case 4:
1620         cpu_outl(addr, val);
1621         break;
1622     }
1623 }
1624
1625 static void do_boot_set(Monitor *mon, const QDict *qdict)
1626 {
1627     int res;
1628     const char *bootdevice = qdict_get_str(qdict, "bootdevice");
1629
1630     res = qemu_boot_set(bootdevice);
1631     if (res == 0) {
1632         monitor_printf(mon, "boot device list now set to %s\n", bootdevice);
1633     } else if (res > 0) {
1634         monitor_printf(mon, "setting boot device list failed\n");
1635     } else {
1636         monitor_printf(mon, "no function defined to set boot device list for "
1637                        "this architecture\n");
1638     }
1639 }
1640
1641 /**
1642  * do_system_reset(): Issue a machine reset
1643  */
1644 static void do_system_reset(Monitor *mon, const QDict *qdict,
1645                             QObject **ret_data)
1646 {
1647     qemu_system_reset_request();
1648 }
1649
1650 /**
1651  * do_system_powerdown(): Issue a machine powerdown
1652  */
1653 static void do_system_powerdown(Monitor *mon, const QDict *qdict,
1654                                 QObject **ret_data)
1655 {
1656     qemu_system_powerdown_request();
1657 }
1658
1659 #if defined(TARGET_I386)
1660 static void print_pte(Monitor *mon, uint32_t addr, uint32_t pte, uint32_t mask)
1661 {
1662     monitor_printf(mon, "%08x: %08x %c%c%c%c%c%c%c%c\n",
1663                    addr,
1664                    pte & mask,
1665                    pte & PG_GLOBAL_MASK ? 'G' : '-',
1666                    pte & PG_PSE_MASK ? 'P' : '-',
1667                    pte & PG_DIRTY_MASK ? 'D' : '-',
1668                    pte & PG_ACCESSED_MASK ? 'A' : '-',
1669                    pte & PG_PCD_MASK ? 'C' : '-',
1670                    pte & PG_PWT_MASK ? 'T' : '-',
1671                    pte & PG_USER_MASK ? 'U' : '-',
1672                    pte & PG_RW_MASK ? 'W' : '-');
1673 }
1674
1675 static void tlb_info(Monitor *mon)
1676 {
1677     CPUState *env;
1678     int l1, l2;
1679     uint32_t pgd, pde, pte;
1680
1681     env = mon_get_cpu();
1682     if (!env)
1683         return;
1684
1685     if (!(env->cr[0] & CR0_PG_MASK)) {
1686         monitor_printf(mon, "PG disabled\n");
1687         return;
1688     }
1689     pgd = env->cr[3] & ~0xfff;
1690     for(l1 = 0; l1 < 1024; l1++) {
1691         cpu_physical_memory_read(pgd + l1 * 4, (uint8_t *)&pde, 4);
1692         pde = le32_to_cpu(pde);
1693         if (pde & PG_PRESENT_MASK) {
1694             if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
1695                 print_pte(mon, (l1 << 22), pde, ~((1 << 20) - 1));
1696             } else {
1697                 for(l2 = 0; l2 < 1024; l2++) {
1698                     cpu_physical_memory_read((pde & ~0xfff) + l2 * 4,
1699                                              (uint8_t *)&pte, 4);
1700                     pte = le32_to_cpu(pte);
1701                     if (pte & PG_PRESENT_MASK) {
1702                         print_pte(mon, (l1 << 22) + (l2 << 12),
1703                                   pte & ~PG_PSE_MASK,
1704                                   ~0xfff);
1705                     }
1706                 }
1707             }
1708         }
1709     }
1710 }
1711
1712 static void mem_print(Monitor *mon, uint32_t *pstart, int *plast_prot,
1713                       uint32_t end, int prot)
1714 {
1715     int prot1;
1716     prot1 = *plast_prot;
1717     if (prot != prot1) {
1718         if (*pstart != -1) {
1719             monitor_printf(mon, "%08x-%08x %08x %c%c%c\n",
1720                            *pstart, end, end - *pstart,
1721                            prot1 & PG_USER_MASK ? 'u' : '-',
1722                            'r',
1723                            prot1 & PG_RW_MASK ? 'w' : '-');
1724         }
1725         if (prot != 0)
1726             *pstart = end;
1727         else
1728             *pstart = -1;
1729         *plast_prot = prot;
1730     }
1731 }
1732
1733 static void mem_info(Monitor *mon)
1734 {
1735     CPUState *env;
1736     int l1, l2, prot, last_prot;
1737     uint32_t pgd, pde, pte, start, end;
1738
1739     env = mon_get_cpu();
1740     if (!env)
1741         return;
1742
1743     if (!(env->cr[0] & CR0_PG_MASK)) {
1744         monitor_printf(mon, "PG disabled\n");
1745         return;
1746     }
1747     pgd = env->cr[3] & ~0xfff;
1748     last_prot = 0;
1749     start = -1;
1750     for(l1 = 0; l1 < 1024; l1++) {
1751         cpu_physical_memory_read(pgd + l1 * 4, (uint8_t *)&pde, 4);
1752         pde = le32_to_cpu(pde);
1753         end = l1 << 22;
1754         if (pde & PG_PRESENT_MASK) {
1755             if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
1756                 prot = pde & (PG_USER_MASK | PG_RW_MASK | PG_PRESENT_MASK);
1757                 mem_print(mon, &start, &last_prot, end, prot);
1758             } else {
1759                 for(l2 = 0; l2 < 1024; l2++) {
1760                     cpu_physical_memory_read((pde & ~0xfff) + l2 * 4,
1761                                              (uint8_t *)&pte, 4);
1762                     pte = le32_to_cpu(pte);
1763                     end = (l1 << 22) + (l2 << 12);
1764                     if (pte & PG_PRESENT_MASK) {
1765                         prot = pte & (PG_USER_MASK | PG_RW_MASK | PG_PRESENT_MASK);
1766                     } else {
1767                         prot = 0;
1768                     }
1769                     mem_print(mon, &start, &last_prot, end, prot);
1770                 }
1771             }
1772         } else {
1773             prot = 0;
1774             mem_print(mon, &start, &last_prot, end, prot);
1775         }
1776     }
1777 }
1778 #endif
1779
1780 #if defined(TARGET_SH4)
1781
1782 static void print_tlb(Monitor *mon, int idx, tlb_t *tlb)
1783 {
1784     monitor_printf(mon, " tlb%i:\t"
1785                    "asid=%hhu vpn=%x\tppn=%x\tsz=%hhu size=%u\t"
1786                    "v=%hhu shared=%hhu cached=%hhu prot=%hhu "
1787                    "dirty=%hhu writethrough=%hhu\n",
1788                    idx,
1789                    tlb->asid, tlb->vpn, tlb->ppn, tlb->sz, tlb->size,
1790                    tlb->v, tlb->sh, tlb->c, tlb->pr,
1791                    tlb->d, tlb->wt);
1792 }
1793
1794 static void tlb_info(Monitor *mon)
1795 {
1796     CPUState *env = mon_get_cpu();
1797     int i;
1798
1799     monitor_printf (mon, "ITLB:\n");
1800     for (i = 0 ; i < ITLB_SIZE ; i++)
1801         print_tlb (mon, i, &env->itlb[i]);
1802     monitor_printf (mon, "UTLB:\n");
1803     for (i = 0 ; i < UTLB_SIZE ; i++)
1804         print_tlb (mon, i, &env->utlb[i]);
1805 }
1806
1807 #endif
1808
1809 static void do_info_kvm(Monitor *mon)
1810 {
1811 #ifdef CONFIG_KVM
1812     monitor_printf(mon, "kvm support: ");
1813     if (kvm_enabled())
1814         monitor_printf(mon, "enabled\n");
1815     else
1816         monitor_printf(mon, "disabled\n");
1817 #else
1818     monitor_printf(mon, "kvm support: not compiled\n");
1819 #endif
1820 }
1821
1822 static void do_info_numa(Monitor *mon)
1823 {
1824     int i;
1825     CPUState *env;
1826
1827     monitor_printf(mon, "%d nodes\n", nb_numa_nodes);
1828     for (i = 0; i < nb_numa_nodes; i++) {
1829         monitor_printf(mon, "node %d cpus:", i);
1830         for (env = first_cpu; env != NULL; env = env->next_cpu) {
1831             if (env->numa_node == i) {
1832                 monitor_printf(mon, " %d", env->cpu_index);
1833             }
1834         }
1835         monitor_printf(mon, "\n");
1836         monitor_printf(mon, "node %d size: %" PRId64 " MB\n", i,
1837             node_mem[i] >> 20);
1838     }
1839 }
1840
1841 #ifdef CONFIG_PROFILER
1842
1843 int64_t qemu_time;
1844 int64_t dev_time;
1845
1846 static void do_info_profile(Monitor *mon)
1847 {
1848     int64_t total;
1849     total = qemu_time;
1850     if (total == 0)
1851         total = 1;
1852     monitor_printf(mon, "async time  %" PRId64 " (%0.3f)\n",
1853                    dev_time, dev_time / (double)get_ticks_per_sec());
1854     monitor_printf(mon, "qemu time   %" PRId64 " (%0.3f)\n",
1855                    qemu_time, qemu_time / (double)get_ticks_per_sec());
1856     qemu_time = 0;
1857     dev_time = 0;
1858 }
1859 #else
1860 static void do_info_profile(Monitor *mon)
1861 {
1862     monitor_printf(mon, "Internal profiler not compiled\n");
1863 }
1864 #endif
1865
1866 /* Capture support */
1867 static QLIST_HEAD (capture_list_head, CaptureState) capture_head;
1868
1869 static void do_info_capture(Monitor *mon)
1870 {
1871     int i;
1872     CaptureState *s;
1873
1874     for (s = capture_head.lh_first, i = 0; s; s = s->entries.le_next, ++i) {
1875         monitor_printf(mon, "[%d]: ", i);
1876         s->ops.info (s->opaque);
1877     }
1878 }
1879
1880 #ifdef HAS_AUDIO
1881 static void do_stop_capture(Monitor *mon, const QDict *qdict)
1882 {
1883     int i;
1884     int n = qdict_get_int(qdict, "n");
1885     CaptureState *s;
1886
1887     for (s = capture_head.lh_first, i = 0; s; s = s->entries.le_next, ++i) {
1888         if (i == n) {
1889             s->ops.destroy (s->opaque);
1890             QLIST_REMOVE (s, entries);
1891             qemu_free (s);
1892             return;
1893         }
1894     }
1895 }
1896
1897 static void do_wav_capture(Monitor *mon, const QDict *qdict)
1898 {
1899     const char *path = qdict_get_str(qdict, "path");
1900     int has_freq = qdict_haskey(qdict, "freq");
1901     int freq = qdict_get_try_int(qdict, "freq", -1);
1902     int has_bits = qdict_haskey(qdict, "bits");
1903     int bits = qdict_get_try_int(qdict, "bits", -1);
1904     int has_channels = qdict_haskey(qdict, "nchannels");
1905     int nchannels = qdict_get_try_int(qdict, "nchannels", -1);
1906     CaptureState *s;
1907
1908     s = qemu_mallocz (sizeof (*s));
1909
1910     freq = has_freq ? freq : 44100;
1911     bits = has_bits ? bits : 16;
1912     nchannels = has_channels ? nchannels : 2;
1913
1914     if (wav_start_capture (s, path, freq, bits, nchannels)) {
1915         monitor_printf(mon, "Faied to add wave capture\n");
1916         qemu_free (s);
1917     }
1918     QLIST_INSERT_HEAD (&capture_head, s, entries);
1919 }
1920 #endif
1921
1922 #if defined(TARGET_I386)
1923 static void do_inject_nmi(Monitor *mon, const QDict *qdict)
1924 {
1925     CPUState *env;
1926     int cpu_index = qdict_get_int(qdict, "cpu_index");
1927
1928     for (env = first_cpu; env != NULL; env = env->next_cpu)
1929         if (env->cpu_index == cpu_index) {
1930             cpu_interrupt(env, CPU_INTERRUPT_NMI);
1931             break;
1932         }
1933 }
1934 #endif
1935
1936 static void do_info_status(Monitor *mon)
1937 {
1938     if (vm_running) {
1939         if (singlestep) {
1940             monitor_printf(mon, "VM status: running (single step mode)\n");
1941         } else {
1942             monitor_printf(mon, "VM status: running\n");
1943         }
1944     } else
1945        monitor_printf(mon, "VM status: paused\n");
1946 }
1947
1948 /**
1949  * do_balloon(): Request VM to change its memory allocation
1950  */
1951 static void do_balloon(Monitor *mon, const QDict *qdict, QObject **ret_data)
1952 {
1953     int value = qdict_get_int(qdict, "value");
1954     ram_addr_t target = value;
1955     qemu_balloon(target << 20);
1956 }
1957
1958 static void monitor_print_balloon(Monitor *mon, const QObject *data)
1959 {
1960     QDict *qdict;
1961
1962     qdict = qobject_to_qdict(data);
1963
1964     monitor_printf(mon, "balloon: actual=%" PRId64 "\n",
1965                         qdict_get_int(qdict, "balloon") >> 20);
1966 }
1967
1968 /**
1969  * do_info_balloon(): Balloon information
1970  *
1971  * Return a QDict with the following information:
1972  *
1973  * - "balloon": current balloon value in bytes
1974  *
1975  * Example:
1976  *
1977  * { "balloon": 1073741824 }
1978  */
1979 static void do_info_balloon(Monitor *mon, QObject **ret_data)
1980 {
1981     ram_addr_t actual;
1982
1983     actual = qemu_balloon_status();
1984     if (kvm_enabled() && !kvm_has_sync_mmu())
1985         qemu_error_new(QERR_KVM_MISSING_CAP, "synchronous MMU", "balloon");
1986     else if (actual == 0)
1987         qemu_error_new(QERR_DEVICE_NOT_ACTIVE, "balloon");
1988     else
1989         *ret_data = qobject_from_jsonf("{ 'balloon': %" PRId64 "}",
1990                                        (int64_t) actual);
1991 }
1992
1993 static qemu_acl *find_acl(Monitor *mon, const char *name)
1994 {
1995     qemu_acl *acl = qemu_acl_find(name);
1996
1997     if (!acl) {
1998         monitor_printf(mon, "acl: unknown list '%s'\n", name);
1999     }
2000     return acl;
2001 }
2002
2003 static void do_acl_show(Monitor *mon, const QDict *qdict)
2004 {
2005     const char *aclname = qdict_get_str(qdict, "aclname");
2006     qemu_acl *acl = find_acl(mon, aclname);
2007     qemu_acl_entry *entry;
2008     int i = 0;
2009
2010     if (acl) {
2011         monitor_printf(mon, "policy: %s\n",
2012                        acl->defaultDeny ? "deny" : "allow");
2013         QTAILQ_FOREACH(entry, &acl->entries, next) {
2014             i++;
2015             monitor_printf(mon, "%d: %s %s\n", i,
2016                            entry->deny ? "deny" : "allow", entry->match);
2017         }
2018     }
2019 }
2020
2021 static void do_acl_reset(Monitor *mon, const QDict *qdict)
2022 {
2023     const char *aclname = qdict_get_str(qdict, "aclname");
2024     qemu_acl *acl = find_acl(mon, aclname);
2025
2026     if (acl) {
2027         qemu_acl_reset(acl);
2028         monitor_printf(mon, "acl: removed all rules\n");
2029     }
2030 }
2031
2032 static void do_acl_policy(Monitor *mon, const QDict *qdict)
2033 {
2034     const char *aclname = qdict_get_str(qdict, "aclname");
2035     const char *policy = qdict_get_str(qdict, "policy");
2036     qemu_acl *acl = find_acl(mon, aclname);
2037
2038     if (acl) {
2039         if (strcmp(policy, "allow") == 0) {
2040             acl->defaultDeny = 0;
2041             monitor_printf(mon, "acl: policy set to 'allow'\n");
2042         } else if (strcmp(policy, "deny") == 0) {
2043             acl->defaultDeny = 1;
2044             monitor_printf(mon, "acl: policy set to 'deny'\n");
2045         } else {
2046             monitor_printf(mon, "acl: unknown policy '%s', "
2047                            "expected 'deny' or 'allow'\n", policy);
2048         }
2049     }
2050 }
2051
2052 static void do_acl_add(Monitor *mon, const QDict *qdict)
2053 {
2054     const char *aclname = qdict_get_str(qdict, "aclname");
2055     const char *match = qdict_get_str(qdict, "match");
2056     const char *policy = qdict_get_str(qdict, "policy");
2057     int has_index = qdict_haskey(qdict, "index");
2058     int index = qdict_get_try_int(qdict, "index", -1);
2059     qemu_acl *acl = find_acl(mon, aclname);
2060     int deny, ret;
2061
2062     if (acl) {
2063         if (strcmp(policy, "allow") == 0) {
2064             deny = 0;
2065         } else if (strcmp(policy, "deny") == 0) {
2066             deny = 1;
2067         } else {
2068             monitor_printf(mon, "acl: unknown policy '%s', "
2069                            "expected 'deny' or 'allow'\n", policy);
2070             return;
2071         }
2072         if (has_index)
2073             ret = qemu_acl_insert(acl, deny, match, index);
2074         else
2075             ret = qemu_acl_append(acl, deny, match);
2076         if (ret < 0)
2077             monitor_printf(mon, "acl: unable to add acl entry\n");
2078         else
2079             monitor_printf(mon, "acl: added rule at position %d\n", ret);
2080     }
2081 }
2082
2083 static void do_acl_remove(Monitor *mon, const QDict *qdict)
2084 {
2085     const char *aclname = qdict_get_str(qdict, "aclname");
2086     const char *match = qdict_get_str(qdict, "match");
2087     qemu_acl *acl = find_acl(mon, aclname);
2088     int ret;
2089
2090     if (acl) {
2091         ret = qemu_acl_remove(acl, match);
2092         if (ret < 0)
2093             monitor_printf(mon, "acl: no matching acl entry\n");
2094         else
2095             monitor_printf(mon, "acl: removed rule at position %d\n", ret);
2096     }
2097 }
2098
2099 #if defined(TARGET_I386)
2100 static void do_inject_mce(Monitor *mon, const QDict *qdict)
2101 {
2102     CPUState *cenv;
2103     int cpu_index = qdict_get_int(qdict, "cpu_index");
2104     int bank = qdict_get_int(qdict, "bank");
2105     uint64_t status = qdict_get_int(qdict, "status");
2106     uint64_t mcg_status = qdict_get_int(qdict, "mcg_status");
2107     uint64_t addr = qdict_get_int(qdict, "addr");
2108     uint64_t misc = qdict_get_int(qdict, "misc");
2109
2110     for (cenv = first_cpu; cenv != NULL; cenv = cenv->next_cpu)
2111         if (cenv->cpu_index == cpu_index && cenv->mcg_cap) {
2112             cpu_inject_x86_mce(cenv, bank, status, mcg_status, addr, misc);
2113             break;
2114         }
2115 }
2116 #endif
2117
2118 static void do_getfd(Monitor *mon, const QDict *qdict, QObject **ret_data)
2119 {
2120     const char *fdname = qdict_get_str(qdict, "fdname");
2121     mon_fd_t *monfd;
2122     int fd;
2123
2124     fd = qemu_chr_get_msgfd(mon->chr);
2125     if (fd == -1) {
2126         qemu_error_new(QERR_FD_NOT_SUPPLIED);
2127         return;
2128     }
2129
2130     if (qemu_isdigit(fdname[0])) {
2131         qemu_error_new(QERR_INVALID_PARAMETER, "fdname");
2132         return;
2133     }
2134
2135     fd = dup(fd);
2136     if (fd == -1) {
2137         if (errno == EMFILE)
2138             qemu_error_new(QERR_TOO_MANY_FILES);
2139         else
2140             qemu_error_new(QERR_UNDEFINED_ERROR);
2141         return;
2142     }
2143
2144     QLIST_FOREACH(monfd, &mon->fds, next) {
2145         if (strcmp(monfd->name, fdname) != 0) {
2146             continue;
2147         }
2148
2149         close(monfd->fd);
2150         monfd->fd = fd;
2151         return;
2152     }
2153
2154     monfd = qemu_mallocz(sizeof(mon_fd_t));
2155     monfd->name = qemu_strdup(fdname);
2156     monfd->fd = fd;
2157
2158     QLIST_INSERT_HEAD(&mon->fds, monfd, next);
2159 }
2160
2161 static void do_closefd(Monitor *mon, const QDict *qdict, QObject **ret_data)
2162 {
2163     const char *fdname = qdict_get_str(qdict, "fdname");
2164     mon_fd_t *monfd;
2165
2166     QLIST_FOREACH(monfd, &mon->fds, next) {
2167         if (strcmp(monfd->name, fdname) != 0) {
2168             continue;
2169         }
2170
2171         QLIST_REMOVE(monfd, next);
2172         close(monfd->fd);
2173         qemu_free(monfd->name);
2174         qemu_free(monfd);
2175         return;
2176     }
2177
2178     qemu_error_new(QERR_FD_NOT_FOUND, fdname);
2179 }
2180
2181 static void do_loadvm(Monitor *mon, const QDict *qdict)
2182 {
2183     int saved_vm_running  = vm_running;
2184     const char *name = qdict_get_str(qdict, "name");
2185
2186     vm_stop(0);
2187
2188     if (load_vmstate(mon, name) >= 0 && saved_vm_running)
2189         vm_start();
2190 }
2191
2192 int monitor_get_fd(Monitor *mon, const char *fdname)
2193 {
2194     mon_fd_t *monfd;
2195
2196     QLIST_FOREACH(monfd, &mon->fds, next) {
2197         int fd;
2198
2199         if (strcmp(monfd->name, fdname) != 0) {
2200             continue;
2201         }
2202
2203         fd = monfd->fd;
2204
2205         /* caller takes ownership of fd */
2206         QLIST_REMOVE(monfd, next);
2207         qemu_free(monfd->name);
2208         qemu_free(monfd);
2209
2210         return fd;
2211     }
2212
2213     return -1;
2214 }
2215
2216 static const mon_cmd_t mon_cmds[] = {
2217 #include "qemu-monitor.h"
2218     { NULL, NULL, },
2219 };
2220
2221 /* Please update qemu-monitor.hx when adding or changing commands */
2222 static const mon_cmd_t info_cmds[] = {
2223     {
2224         .name       = "version",
2225         .args_type  = "",
2226         .params     = "",
2227         .help       = "show the version of QEMU",
2228         .user_print = do_info_version_print,
2229         .mhandler.info_new = do_info_version,
2230     },
2231     {
2232         .name       = "commands",
2233         .args_type  = "",
2234         .params     = "",
2235         .help       = "list QMP available commands",
2236         .user_print = monitor_user_noop,
2237         .mhandler.info_new = do_info_commands,
2238     },
2239     {
2240         .name       = "network",
2241         .args_type  = "",
2242         .params     = "",
2243         .help       = "show the network state",
2244         .mhandler.info = do_info_network,
2245     },
2246     {
2247         .name       = "chardev",
2248         .args_type  = "",
2249         .params     = "",
2250         .help       = "show the character devices",
2251         .mhandler.info = qemu_chr_info,
2252     },
2253     {
2254         .name       = "block",
2255         .args_type  = "",
2256         .params     = "",
2257         .help       = "show the block devices",
2258         .mhandler.info = bdrv_info,
2259     },
2260     {
2261         .name       = "blockstats",
2262         .args_type  = "",
2263         .params     = "",
2264         .help       = "show block device statistics",
2265         .mhandler.info = bdrv_info_stats,
2266     },
2267     {
2268         .name       = "registers",
2269         .args_type  = "",
2270         .params     = "",
2271         .help       = "show the cpu registers",
2272         .mhandler.info = do_info_registers,
2273     },
2274     {
2275         .name       = "cpus",
2276         .args_type  = "",
2277         .params     = "",
2278         .help       = "show infos for each CPU",
2279         .user_print = monitor_print_cpus,
2280         .mhandler.info_new = do_info_cpus,
2281     },
2282     {
2283         .name       = "history",
2284         .args_type  = "",
2285         .params     = "",
2286         .help       = "show the command line history",
2287         .mhandler.info = do_info_history,
2288     },
2289     {
2290         .name       = "irq",
2291         .args_type  = "",
2292         .params     = "",
2293         .help       = "show the interrupts statistics (if available)",
2294         .mhandler.info = irq_info,
2295     },
2296     {
2297         .name       = "pic",
2298         .args_type  = "",
2299         .params     = "",
2300         .help       = "show i8259 (PIC) state",
2301         .mhandler.info = pic_info,
2302     },
2303     {
2304         .name       = "pci",
2305         .args_type  = "",
2306         .params     = "",
2307         .help       = "show PCI info",
2308         .mhandler.info = pci_info,
2309     },
2310 #if defined(TARGET_I386) || defined(TARGET_SH4)
2311     {
2312         .name       = "tlb",
2313         .args_type  = "",
2314         .params     = "",
2315         .help       = "show virtual to physical memory mappings",
2316         .mhandler.info = tlb_info,
2317     },
2318 #endif
2319 #if defined(TARGET_I386)
2320     {
2321         .name       = "mem",
2322         .args_type  = "",
2323         .params     = "",
2324         .help       = "show the active virtual memory mappings",
2325         .mhandler.info = mem_info,
2326     },
2327     {
2328         .name       = "hpet",
2329         .args_type  = "",
2330         .params     = "",
2331         .help       = "show state of HPET",
2332         .mhandler.info = do_info_hpet,
2333     },
2334 #endif
2335     {
2336         .name       = "jit",
2337         .args_type  = "",
2338         .params     = "",
2339         .help       = "show dynamic compiler info",
2340         .mhandler.info = do_info_jit,
2341     },
2342     {
2343         .name       = "kvm",
2344         .args_type  = "",
2345         .params     = "",
2346         .help       = "show KVM information",
2347         .mhandler.info = do_info_kvm,
2348     },
2349     {
2350         .name       = "numa",
2351         .args_type  = "",
2352         .params     = "",
2353         .help       = "show NUMA information",
2354         .mhandler.info = do_info_numa,
2355     },
2356     {
2357         .name       = "usb",
2358         .args_type  = "",
2359         .params     = "",
2360         .help       = "show guest USB devices",
2361         .mhandler.info = usb_info,
2362     },
2363     {
2364         .name       = "usbhost",
2365         .args_type  = "",
2366         .params     = "",
2367         .help       = "show host USB devices",
2368         .mhandler.info = usb_host_info,
2369     },
2370     {
2371         .name       = "profile",
2372         .args_type  = "",
2373         .params     = "",
2374         .help       = "show profiling information",
2375         .mhandler.info = do_info_profile,
2376     },
2377     {
2378         .name       = "capture",
2379         .args_type  = "",
2380         .params     = "",
2381         .help       = "show capture information",
2382         .mhandler.info = do_info_capture,
2383     },
2384     {
2385         .name       = "snapshots",
2386         .args_type  = "",
2387         .params     = "",
2388         .help       = "show the currently saved VM snapshots",
2389         .mhandler.info = do_info_snapshots,
2390     },
2391     {
2392         .name       = "status",
2393         .args_type  = "",
2394         .params     = "",
2395         .help       = "show the current VM status (running|paused)",
2396         .mhandler.info = do_info_status,
2397     },
2398     {
2399         .name       = "pcmcia",
2400         .args_type  = "",
2401         .params     = "",
2402         .help       = "show guest PCMCIA status",
2403         .mhandler.info = pcmcia_info,
2404     },
2405     {
2406         .name       = "mice",
2407         .args_type  = "",
2408         .params     = "",
2409         .help       = "show which guest mouse is receiving events",
2410         .mhandler.info = do_info_mice,
2411     },
2412     {
2413         .name       = "vnc",
2414         .args_type  = "",
2415         .params     = "",
2416         .help       = "show the vnc server status",
2417         .mhandler.info = do_info_vnc,
2418     },
2419     {
2420         .name       = "name",
2421         .args_type  = "",
2422         .params     = "",
2423         .help       = "show the current VM name",
2424         .mhandler.info = do_info_name,
2425     },
2426     {
2427         .name       = "uuid",
2428         .args_type  = "",
2429         .params     = "",
2430         .help       = "show the current VM UUID",
2431         .mhandler.info = do_info_uuid,
2432     },
2433 #if defined(TARGET_PPC)
2434     {
2435         .name       = "cpustats",
2436         .args_type  = "",
2437         .params     = "",
2438         .help       = "show CPU statistics",
2439         .mhandler.info = do_info_cpu_stats,
2440     },
2441 #endif
2442 #if defined(CONFIG_SLIRP)
2443     {
2444         .name       = "usernet",
2445         .args_type  = "",
2446         .params     = "",
2447         .help       = "show user network stack connection states",
2448         .mhandler.info = do_info_usernet,
2449     },
2450 #endif
2451     {
2452         .name       = "migrate",
2453         .args_type  = "",
2454         .params     = "",
2455         .help       = "show migration status",
2456         .mhandler.info = do_info_migrate,
2457     },
2458     {
2459         .name       = "balloon",
2460         .args_type  = "",
2461         .params     = "",
2462         .help       = "show balloon information",
2463         .user_print = monitor_print_balloon,
2464         .mhandler.info_new = do_info_balloon,
2465     },
2466     {
2467         .name       = "qtree",
2468         .args_type  = "",
2469         .params     = "",
2470         .help       = "show device tree",
2471         .mhandler.info = do_info_qtree,
2472     },
2473     {
2474         .name       = "qdm",
2475         .args_type  = "",
2476         .params     = "",
2477         .help       = "show qdev device model list",
2478         .mhandler.info = do_info_qdm,
2479     },
2480     {
2481         .name       = "roms",
2482         .args_type  = "",
2483         .params     = "",
2484         .help       = "show roms",
2485         .mhandler.info = do_info_roms,
2486     },
2487     {
2488         .name       = NULL,
2489     },
2490 };
2491
2492 /*******************************************************************/
2493
2494 static const char *pch;
2495 static jmp_buf expr_env;
2496
2497 #define MD_TLONG 0
2498 #define MD_I32   1
2499
2500 typedef struct MonitorDef {
2501     const char *name;
2502     int offset;
2503     target_long (*get_value)(const struct MonitorDef *md, int val);
2504     int type;
2505 } MonitorDef;
2506
2507 #if defined(TARGET_I386)
2508 static target_long monitor_get_pc (const struct MonitorDef *md, int val)
2509 {
2510     CPUState *env = mon_get_cpu();
2511     if (!env)
2512         return 0;
2513     return env->eip + env->segs[R_CS].base;
2514 }
2515 #endif
2516
2517 #if defined(TARGET_PPC)
2518 static target_long monitor_get_ccr (const struct MonitorDef *md, int val)
2519 {
2520     CPUState *env = mon_get_cpu();
2521     unsigned int u;
2522     int i;
2523
2524     if (!env)
2525         return 0;
2526
2527     u = 0;
2528     for (i = 0; i < 8; i++)
2529         u |= env->crf[i] << (32 - (4 * i));
2530
2531     return u;
2532 }
2533
2534 static target_long monitor_get_msr (const struct MonitorDef *md, int val)
2535 {
2536     CPUState *env = mon_get_cpu();
2537     if (!env)
2538         return 0;
2539     return env->msr;
2540 }
2541
2542 static target_long monitor_get_xer (const struct MonitorDef *md, int val)
2543 {
2544     CPUState *env = mon_get_cpu();
2545     if (!env)
2546         return 0;
2547     return env->xer;
2548 }
2549
2550 static target_long monitor_get_decr (const struct MonitorDef *md, int val)
2551 {
2552     CPUState *env = mon_get_cpu();
2553     if (!env)
2554         return 0;
2555     return cpu_ppc_load_decr(env);
2556 }
2557
2558 static target_long monitor_get_tbu (const struct MonitorDef *md, int val)
2559 {
2560     CPUState *env = mon_get_cpu();
2561     if (!env)
2562         return 0;
2563     return cpu_ppc_load_tbu(env);
2564 }
2565
2566 static target_long monitor_get_tbl (const struct MonitorDef *md, int val)
2567 {
2568     CPUState *env = mon_get_cpu();
2569     if (!env)
2570         return 0;
2571     return cpu_ppc_load_tbl(env);
2572 }
2573 #endif
2574
2575 #if defined(TARGET_SPARC)
2576 #ifndef TARGET_SPARC64
2577 static target_long monitor_get_psr (const struct MonitorDef *md, int val)
2578 {
2579     CPUState *env = mon_get_cpu();
2580     if (!env)
2581         return 0;
2582     return GET_PSR(env);
2583 }
2584 #endif
2585
2586 static target_long monitor_get_reg(const struct MonitorDef *md, int val)
2587 {
2588     CPUState *env = mon_get_cpu();
2589     if (!env)
2590         return 0;
2591     return env->regwptr[val];
2592 }
2593 #endif
2594
2595 static const MonitorDef monitor_defs[] = {
2596 #ifdef TARGET_I386
2597
2598 #define SEG(name, seg) \
2599     { name, offsetof(CPUState, segs[seg].selector), NULL, MD_I32 },\
2600     { name ".base", offsetof(CPUState, segs[seg].base) },\
2601     { name ".limit", offsetof(CPUState, segs[seg].limit), NULL, MD_I32 },
2602
2603     { "eax", offsetof(CPUState, regs[0]) },
2604     { "ecx", offsetof(CPUState, regs[1]) },
2605     { "edx", offsetof(CPUState, regs[2]) },
2606     { "ebx", offsetof(CPUState, regs[3]) },
2607     { "esp|sp", offsetof(CPUState, regs[4]) },
2608     { "ebp|fp", offsetof(CPUState, regs[5]) },
2609     { "esi", offsetof(CPUState, regs[6]) },
2610     { "edi", offsetof(CPUState, regs[7]) },
2611 #ifdef TARGET_X86_64
2612     { "r8", offsetof(CPUState, regs[8]) },
2613     { "r9", offsetof(CPUState, regs[9]) },
2614     { "r10", offsetof(CPUState, regs[10]) },
2615     { "r11", offsetof(CPUState, regs[11]) },
2616     { "r12", offsetof(CPUState, regs[12]) },
2617     { "r13", offsetof(CPUState, regs[13]) },
2618     { "r14", offsetof(CPUState, regs[14]) },
2619     { "r15", offsetof(CPUState, regs[15]) },
2620 #endif
2621     { "eflags", offsetof(CPUState, eflags) },
2622     { "eip", offsetof(CPUState, eip) },
2623     SEG("cs", R_CS)
2624     SEG("ds", R_DS)
2625     SEG("es", R_ES)
2626     SEG("ss", R_SS)
2627     SEG("fs", R_FS)
2628     SEG("gs", R_GS)
2629     { "pc", 0, monitor_get_pc, },
2630 #elif defined(TARGET_PPC)
2631     /* General purpose registers */
2632     { "r0", offsetof(CPUState, gpr[0]) },
2633     { "r1", offsetof(CPUState, gpr[1]) },
2634     { "r2", offsetof(CPUState, gpr[2]) },
2635     { "r3", offsetof(CPUState, gpr[3]) },
2636     { "r4", offsetof(CPUState, gpr[4]) },
2637     { "r5", offsetof(CPUState, gpr[5]) },
2638     { "r6", offsetof(CPUState, gpr[6]) },
2639     { "r7", offsetof(CPUState, gpr[7]) },
2640     { "r8", offsetof(CPUState, gpr[8]) },
2641     { "r9", offsetof(CPUState, gpr[9]) },
2642     { "r10", offsetof(CPUState, gpr[10]) },
2643     { "r11", offsetof(CPUState, gpr[11]) },
2644     { "r12", offsetof(CPUState, gpr[12]) },
2645     { "r13", offsetof(CPUState, gpr[13]) },
2646     { "r14", offsetof(CPUState, gpr[14]) },
2647     { "r15", offsetof(CPUState, gpr[15]) },
2648     { "r16", offsetof(CPUState, gpr[16]) },
2649     { "r17", offsetof(CPUState, gpr[17]) },
2650     { "r18", offsetof(CPUState, gpr[18]) },
2651     { "r19", offsetof(CPUState, gpr[19]) },
2652     { "r20", offsetof(CPUState, gpr[20]) },
2653     { "r21", offsetof(CPUState, gpr[21]) },
2654     { "r22", offsetof(CPUState, gpr[22]) },
2655     { "r23", offsetof(CPUState, gpr[23]) },
2656     { "r24", offsetof(CPUState, gpr[24]) },
2657     { "r25", offsetof(CPUState, gpr[25]) },
2658     { "r26", offsetof(CPUState, gpr[26]) },
2659     { "r27", offsetof(CPUState, gpr[27]) },
2660     { "r28", offsetof(CPUState, gpr[28]) },
2661     { "r29", offsetof(CPUState, gpr[29]) },
2662     { "r30", offsetof(CPUState, gpr[30]) },
2663     { "r31", offsetof(CPUState, gpr[31]) },
2664     /* Floating point registers */
2665     { "f0", offsetof(CPUState, fpr[0]) },
2666     { "f1", offsetof(CPUState, fpr[1]) },
2667     { "f2", offsetof(CPUState, fpr[2]) },
2668     { "f3", offsetof(CPUState, fpr[3]) },
2669     { "f4", offsetof(CPUState, fpr[4]) },
2670     { "f5", offsetof(CPUState, fpr[5]) },
2671     { "f6", offsetof(CPUState, fpr[6]) },
2672     { "f7", offsetof(CPUState, fpr[7]) },
2673     { "f8", offsetof(CPUState, fpr[8]) },
2674     { "f9", offsetof(CPUState, fpr[9]) },
2675     { "f10", offsetof(CPUState, fpr[10]) },
2676     { "f11", offsetof(CPUState, fpr[11]) },
2677     { "f12", offsetof(CPUState, fpr[12]) },
2678     { "f13", offsetof(CPUState, fpr[13]) },
2679     { "f14", offsetof(CPUState, fpr[14]) },
2680     { "f15", offsetof(CPUState, fpr[15]) },
2681     { "f16", offsetof(CPUState, fpr[16]) },
2682     { "f17", offsetof(CPUState, fpr[17]) },
2683     { "f18", offsetof(CPUState, fpr[18]) },
2684     { "f19", offsetof(CPUState, fpr[19]) },
2685     { "f20", offsetof(CPUState, fpr[20]) },
2686     { "f21", offsetof(CPUState, fpr[21]) },
2687     { "f22", offsetof(CPUState, fpr[22]) },
2688     { "f23", offsetof(CPUState, fpr[23]) },
2689     { "f24", offsetof(CPUState, fpr[24]) },
2690     { "f25", offsetof(CPUState, fpr[25]) },
2691     { "f26", offsetof(CPUState, fpr[26]) },
2692     { "f27", offsetof(CPUState, fpr[27]) },
2693     { "f28", offsetof(CPUState, fpr[28]) },
2694     { "f29", offsetof(CPUState, fpr[29]) },
2695     { "f30", offsetof(CPUState, fpr[30]) },
2696     { "f31", offsetof(CPUState, fpr[31]) },
2697     { "fpscr", offsetof(CPUState, fpscr) },
2698     /* Next instruction pointer */
2699     { "nip|pc", offsetof(CPUState, nip) },
2700     { "lr", offsetof(CPUState, lr) },
2701     { "ctr", offsetof(CPUState, ctr) },
2702     { "decr", 0, &monitor_get_decr, },
2703     { "ccr", 0, &monitor_get_ccr, },
2704     /* Machine state register */
2705     { "msr", 0, &monitor_get_msr, },
2706     { "xer", 0, &monitor_get_xer, },
2707     { "tbu", 0, &monitor_get_tbu, },
2708     { "tbl", 0, &monitor_get_tbl, },
2709 #if defined(TARGET_PPC64)
2710     /* Address space register */
2711     { "asr", offsetof(CPUState, asr) },
2712 #endif
2713     /* Segment registers */
2714     { "sdr1", offsetof(CPUState, sdr1) },
2715     { "sr0", offsetof(CPUState, sr[0]) },
2716     { "sr1", offsetof(CPUState, sr[1]) },
2717     { "sr2", offsetof(CPUState, sr[2]) },
2718     { "sr3", offsetof(CPUState, sr[3]) },
2719     { "sr4", offsetof(CPUState, sr[4]) },
2720     { "sr5", offsetof(CPUState, sr[5]) },
2721     { "sr6", offsetof(CPUState, sr[6]) },
2722     { "sr7", offsetof(CPUState, sr[7]) },
2723     { "sr8", offsetof(CPUState, sr[8]) },
2724     { "sr9", offsetof(CPUState, sr[9]) },
2725     { "sr10", offsetof(CPUState, sr[10]) },
2726     { "sr11", offsetof(CPUState, sr[11]) },
2727     { "sr12", offsetof(CPUState, sr[12]) },
2728     { "sr13", offsetof(CPUState, sr[13]) },
2729     { "sr14", offsetof(CPUState, sr[14]) },
2730     { "sr15", offsetof(CPUState, sr[15]) },
2731     /* Too lazy to put BATs and SPRs ... */
2732 #elif defined(TARGET_SPARC)
2733     { "g0", offsetof(CPUState, gregs[0]) },
2734     { "g1", offsetof(CPUState, gregs[1]) },
2735     { "g2", offsetof(CPUState, gregs[2]) },
2736     { "g3", offsetof(CPUState, gregs[3]) },
2737     { "g4", offsetof(CPUState, gregs[4]) },
2738     { "g5", offsetof(CPUState, gregs[5]) },
2739     { "g6", offsetof(CPUState, gregs[6]) },
2740     { "g7", offsetof(CPUState, gregs[7]) },
2741     { "o0", 0, monitor_get_reg },
2742     { "o1", 1, monitor_get_reg },
2743     { "o2", 2, monitor_get_reg },
2744     { "o3", 3, monitor_get_reg },
2745     { "o4", 4, monitor_get_reg },
2746     { "o5", 5, monitor_get_reg },
2747     { "o6", 6, monitor_get_reg },
2748     { "o7", 7, monitor_get_reg },
2749     { "l0", 8, monitor_get_reg },
2750     { "l1", 9, monitor_get_reg },
2751     { "l2", 10, monitor_get_reg },
2752     { "l3", 11, monitor_get_reg },
2753     { "l4", 12, monitor_get_reg },
2754     { "l5", 13, monitor_get_reg },
2755     { "l6", 14, monitor_get_reg },
2756     { "l7", 15, monitor_get_reg },
2757     { "i0", 16, monitor_get_reg },
2758     { "i1", 17, monitor_get_reg },
2759     { "i2", 18, monitor_get_reg },
2760     { "i3", 19, monitor_get_reg },
2761     { "i4", 20, monitor_get_reg },
2762     { "i5", 21, monitor_get_reg },
2763     { "i6", 22, monitor_get_reg },
2764     { "i7", 23, monitor_get_reg },
2765     { "pc", offsetof(CPUState, pc) },
2766     { "npc", offsetof(CPUState, npc) },
2767     { "y", offsetof(CPUState, y) },
2768 #ifndef TARGET_SPARC64
2769     { "psr", 0, &monitor_get_psr, },
2770     { "wim", offsetof(CPUState, wim) },
2771 #endif
2772     { "tbr", offsetof(CPUState, tbr) },
2773     { "fsr", offsetof(CPUState, fsr) },
2774     { "f0", offsetof(CPUState, fpr[0]) },
2775     { "f1", offsetof(CPUState, fpr[1]) },
2776     { "f2", offsetof(CPUState, fpr[2]) },
2777     { "f3", offsetof(CPUState, fpr[3]) },
2778     { "f4", offsetof(CPUState, fpr[4]) },
2779     { "f5", offsetof(CPUState, fpr[5]) },
2780     { "f6", offsetof(CPUState, fpr[6]) },
2781     { "f7", offsetof(CPUState, fpr[7]) },
2782     { "f8", offsetof(CPUState, fpr[8]) },
2783     { "f9", offsetof(CPUState, fpr[9]) },
2784     { "f10", offsetof(CPUState, fpr[10]) },
2785     { "f11", offsetof(CPUState, fpr[11]) },
2786     { "f12", offsetof(CPUState, fpr[12]) },
2787     { "f13", offsetof(CPUState, fpr[13]) },
2788     { "f14", offsetof(CPUState, fpr[14]) },
2789     { "f15", offsetof(CPUState, fpr[15]) },
2790     { "f16", offsetof(CPUState, fpr[16]) },
2791     { "f17", offsetof(CPUState, fpr[17]) },
2792     { "f18", offsetof(CPUState, fpr[18]) },
2793     { "f19", offsetof(CPUState, fpr[19]) },
2794     { "f20", offsetof(CPUState, fpr[20]) },
2795     { "f21", offsetof(CPUState, fpr[21]) },
2796     { "f22", offsetof(CPUState, fpr[22]) },
2797     { "f23", offsetof(CPUState, fpr[23]) },
2798     { "f24", offsetof(CPUState, fpr[24]) },
2799     { "f25", offsetof(CPUState, fpr[25]) },
2800     { "f26", offsetof(CPUState, fpr[26]) },
2801     { "f27", offsetof(CPUState, fpr[27]) },
2802     { "f28", offsetof(CPUState, fpr[28]) },
2803     { "f29", offsetof(CPUState, fpr[29]) },
2804     { "f30", offsetof(CPUState, fpr[30]) },
2805     { "f31", offsetof(CPUState, fpr[31]) },
2806 #ifdef TARGET_SPARC64
2807     { "f32", offsetof(CPUState, fpr[32]) },
2808     { "f34", offsetof(CPUState, fpr[34]) },
2809     { "f36", offsetof(CPUState, fpr[36]) },
2810     { "f38", offsetof(CPUState, fpr[38]) },
2811     { "f40", offsetof(CPUState, fpr[40]) },
2812     { "f42", offsetof(CPUState, fpr[42]) },
2813     { "f44", offsetof(CPUState, fpr[44]) },
2814     { "f46", offsetof(CPUState, fpr[46]) },
2815     { "f48", offsetof(CPUState, fpr[48]) },
2816     { "f50", offsetof(CPUState, fpr[50]) },
2817     { "f52", offsetof(CPUState, fpr[52]) },
2818     { "f54", offsetof(CPUState, fpr[54]) },
2819     { "f56", offsetof(CPUState, fpr[56]) },
2820     { "f58", offsetof(CPUState, fpr[58]) },
2821     { "f60", offsetof(CPUState, fpr[60]) },
2822     { "f62", offsetof(CPUState, fpr[62]) },
2823     { "asi", offsetof(CPUState, asi) },
2824     { "pstate", offsetof(CPUState, pstate) },
2825     { "cansave", offsetof(CPUState, cansave) },
2826     { "canrestore", offsetof(CPUState, canrestore) },
2827     { "otherwin", offsetof(CPUState, otherwin) },
2828     { "wstate", offsetof(CPUState, wstate) },
2829     { "cleanwin", offsetof(CPUState, cleanwin) },
2830     { "fprs", offsetof(CPUState, fprs) },
2831 #endif
2832 #endif
2833     { NULL },
2834 };
2835
2836 static void expr_error(Monitor *mon, const char *msg)
2837 {
2838     monitor_printf(mon, "%s\n", msg);
2839     longjmp(expr_env, 1);
2840 }
2841
2842 /* return 0 if OK, -1 if not found, -2 if no CPU defined */
2843 static int get_monitor_def(target_long *pval, const char *name)
2844 {
2845     const MonitorDef *md;
2846     void *ptr;
2847
2848     for(md = monitor_defs; md->name != NULL; md++) {
2849         if (compare_cmd(name, md->name)) {
2850             if (md->get_value) {
2851                 *pval = md->get_value(md, md->offset);
2852             } else {
2853                 CPUState *env = mon_get_cpu();
2854                 if (!env)
2855                     return -2;
2856                 ptr = (uint8_t *)env + md->offset;
2857                 switch(md->type) {
2858                 case MD_I32:
2859                     *pval = *(int32_t *)ptr;
2860                     break;
2861                 case MD_TLONG:
2862                     *pval = *(target_long *)ptr;
2863                     break;
2864                 default:
2865                     *pval = 0;
2866                     break;
2867                 }
2868             }
2869             return 0;
2870         }
2871     }
2872     return -1;
2873 }
2874
2875 static void next(void)
2876 {
2877     if (*pch != '\0') {
2878         pch++;
2879         while (qemu_isspace(*pch))
2880             pch++;
2881     }
2882 }
2883
2884 static int64_t expr_sum(Monitor *mon);
2885
2886 static int64_t expr_unary(Monitor *mon)
2887 {
2888     int64_t n;
2889     char *p;
2890     int ret;
2891
2892     switch(*pch) {
2893     case '+':
2894         next();
2895         n = expr_unary(mon);
2896         break;
2897     case '-':
2898         next();
2899         n = -expr_unary(mon);
2900         break;
2901     case '~':
2902         next();
2903         n = ~expr_unary(mon);
2904         break;
2905     case '(':
2906         next();
2907         n = expr_sum(mon);
2908         if (*pch != ')') {
2909             expr_error(mon, "')' expected");
2910         }
2911         next();
2912         break;
2913     case '\'':
2914         pch++;
2915         if (*pch == '\0')
2916             expr_error(mon, "character constant expected");
2917         n = *pch;
2918         pch++;
2919         if (*pch != '\'')
2920             expr_error(mon, "missing terminating \' character");
2921         next();
2922         break;
2923     case '$':
2924         {
2925             char buf[128], *q;
2926             target_long reg=0;
2927
2928             pch++;
2929             q = buf;
2930             while ((*pch >= 'a' && *pch <= 'z') ||
2931                    (*pch >= 'A' && *pch <= 'Z') ||
2932                    (*pch >= '0' && *pch <= '9') ||
2933                    *pch == '_' || *pch == '.') {
2934                 if ((q - buf) < sizeof(buf) - 1)
2935                     *q++ = *pch;
2936                 pch++;
2937             }
2938             while (qemu_isspace(*pch))
2939                 pch++;
2940             *q = 0;
2941             ret = get_monitor_def(&reg, buf);
2942             if (ret == -1)
2943                 expr_error(mon, "unknown register");
2944             else if (ret == -2)
2945                 expr_error(mon, "no cpu defined");
2946             n = reg;
2947         }
2948         break;
2949     case '\0':
2950         expr_error(mon, "unexpected end of expression");
2951         n = 0;
2952         break;
2953     default:
2954 #if TARGET_PHYS_ADDR_BITS > 32
2955         n = strtoull(pch, &p, 0);
2956 #else
2957         n = strtoul(pch, &p, 0);
2958 #endif
2959         if (pch == p) {
2960             expr_error(mon, "invalid char in expression");
2961         }
2962         pch = p;
2963         while (qemu_isspace(*pch))
2964             pch++;
2965         break;
2966     }
2967     return n;
2968 }
2969
2970
2971 static int64_t expr_prod(Monitor *mon)
2972 {
2973     int64_t val, val2;
2974     int op;
2975
2976     val = expr_unary(mon);
2977     for(;;) {
2978         op = *pch;
2979         if (op != '*' && op != '/' && op != '%')
2980             break;
2981         next();
2982         val2 = expr_unary(mon);
2983         switch(op) {
2984         default:
2985         case '*':
2986             val *= val2;
2987             break;
2988         case '/':
2989         case '%':
2990             if (val2 == 0)
2991                 expr_error(mon, "division by zero");
2992             if (op == '/')
2993                 val /= val2;
2994             else
2995                 val %= val2;
2996             break;
2997         }
2998     }
2999     return val;
3000 }
3001
3002 static int64_t expr_logic(Monitor *mon)
3003 {
3004     int64_t val, val2;
3005     int op;
3006
3007     val = expr_prod(mon);
3008     for(;;) {
3009         op = *pch;
3010         if (op != '&' && op != '|' && op != '^')
3011             break;
3012         next();
3013         val2 = expr_prod(mon);
3014         switch(op) {
3015         default:
3016         case '&':
3017             val &= val2;
3018             break;
3019         case '|':
3020             val |= val2;
3021             break;
3022         case '^':
3023             val ^= val2;
3024             break;
3025         }
3026     }
3027     return val;
3028 }
3029
3030 static int64_t expr_sum(Monitor *mon)
3031 {
3032     int64_t val, val2;
3033     int op;
3034
3035     val = expr_logic(mon);
3036     for(;;) {
3037         op = *pch;
3038         if (op != '+' && op != '-')
3039             break;
3040         next();
3041         val2 = expr_logic(mon);
3042         if (op == '+')
3043             val += val2;
3044         else
3045             val -= val2;
3046     }
3047     return val;
3048 }
3049
3050 static int get_expr(Monitor *mon, int64_t *pval, const char **pp)
3051 {
3052     pch = *pp;
3053     if (setjmp(expr_env)) {
3054         *pp = pch;
3055         return -1;
3056     }
3057     while (qemu_isspace(*pch))
3058         pch++;
3059     *pval = expr_sum(mon);
3060     *pp = pch;
3061     return 0;
3062 }
3063
3064 static int get_str(char *buf, int buf_size, const char **pp)
3065 {
3066     const char *p;
3067     char *q;
3068     int c;
3069
3070     q = buf;
3071     p = *pp;
3072     while (qemu_isspace(*p))
3073         p++;
3074     if (*p == '\0') {
3075     fail:
3076         *q = '\0';
3077         *pp = p;
3078         return -1;
3079     }
3080     if (*p == '\"') {
3081         p++;
3082         while (*p != '\0' && *p != '\"') {
3083             if (*p == '\\') {
3084                 p++;
3085                 c = *p++;
3086                 switch(c) {
3087                 case 'n':
3088                     c = '\n';
3089                     break;
3090                 case 'r':
3091                     c = '\r';
3092                     break;
3093                 case '\\':
3094                 case '\'':
3095                 case '\"':
3096                     break;
3097                 default:
3098                     qemu_printf("unsupported escape code: '\\%c'\n", c);
3099                     goto fail;
3100                 }
3101                 if ((q - buf) < buf_size - 1) {
3102                     *q++ = c;
3103                 }
3104             } else {
3105                 if ((q - buf) < buf_size - 1) {
3106                     *q++ = *p;
3107                 }
3108                 p++;
3109             }
3110         }
3111         if (*p != '\"') {
3112             qemu_printf("unterminated string\n");
3113             goto fail;
3114         }
3115         p++;
3116     } else {
3117         while (*p != '\0' && !qemu_isspace(*p)) {
3118             if ((q - buf) < buf_size - 1) {
3119                 *q++ = *p;
3120             }
3121             p++;
3122         }
3123     }
3124     *q = '\0';
3125     *pp = p;
3126     return 0;
3127 }
3128
3129 /*
3130  * Store the command-name in cmdname, and return a pointer to
3131  * the remaining of the command string.
3132  */
3133 static const char *get_command_name(const char *cmdline,
3134                                     char *cmdname, size_t nlen)
3135 {
3136     size_t len;
3137     const char *p, *pstart;
3138
3139     p = cmdline;
3140     while (qemu_isspace(*p))
3141         p++;
3142     if (*p == '\0')
3143         return NULL;
3144     pstart = p;
3145     while (*p != '\0' && *p != '/' && !qemu_isspace(*p))
3146         p++;
3147     len = p - pstart;
3148     if (len > nlen - 1)
3149         len = nlen - 1;
3150     memcpy(cmdname, pstart, len);
3151     cmdname[len] = '\0';
3152     return p;
3153 }
3154
3155 /**
3156  * Read key of 'type' into 'key' and return the current
3157  * 'type' pointer.
3158  */
3159 static char *key_get_info(const char *type, char **key)
3160 {
3161     size_t len;
3162     char *p, *str;
3163
3164     if (*type == ',')
3165         type++;
3166
3167     p = strchr(type, ':');
3168     if (!p) {
3169         *key = NULL;
3170         return NULL;
3171     }
3172     len = p - type;
3173
3174     str = qemu_malloc(len + 1);
3175     memcpy(str, type, len);
3176     str[len] = '\0';
3177
3178     *key = str;
3179     return ++p;
3180 }
3181
3182 static int default_fmt_format = 'x';
3183 static int default_fmt_size = 4;
3184
3185 #define MAX_ARGS 16
3186
3187 static int is_valid_option(const char *c, const char *typestr)
3188 {
3189     char option[3];
3190
3191     option[0] = '-';
3192     option[1] = *c;
3193     option[2] = '\0';
3194
3195     typestr = strstr(typestr, option);
3196     return (typestr != NULL);
3197 }
3198
3199 static const mon_cmd_t *monitor_find_command(const char *cmdname)
3200 {
3201     const mon_cmd_t *cmd;
3202
3203     for (cmd = mon_cmds; cmd->name != NULL; cmd++) {
3204         if (compare_cmd(cmdname, cmd->name)) {
3205             return cmd;
3206         }
3207     }
3208
3209     return NULL;
3210 }
3211
3212 static const mon_cmd_t *monitor_parse_command(Monitor *mon,
3213                                               const char *cmdline,
3214                                               QDict *qdict)
3215 {
3216     const char *p, *typestr;
3217     int c;
3218     const mon_cmd_t *cmd;
3219     char cmdname[256];
3220     char buf[1024];
3221     char *key;
3222
3223 #ifdef DEBUG
3224     monitor_printf(mon, "command='%s'\n", cmdline);
3225 #endif
3226
3227     /* extract the command name */
3228     p = get_command_name(cmdline, cmdname, sizeof(cmdname));
3229     if (!p)
3230         return NULL;
3231
3232     cmd = monitor_find_command(cmdname);
3233     if (!cmd) {
3234         monitor_printf(mon, "unknown command: '%s'\n", cmdname);
3235         return NULL;
3236     }
3237
3238     /* parse the parameters */
3239     typestr = cmd->args_type;
3240     for(;;) {
3241         typestr = key_get_info(typestr, &key);
3242         if (!typestr)
3243             break;
3244         c = *typestr;
3245         typestr++;
3246         switch(c) {
3247         case 'F':
3248         case 'B':
3249         case 's':
3250             {
3251                 int ret;
3252
3253                 while (qemu_isspace(*p))
3254                     p++;
3255                 if (*typestr == '?') {
3256                     typestr++;
3257                     if (*p == '\0') {
3258                         /* no optional string: NULL argument */
3259                         break;
3260                     }
3261                 }
3262                 ret = get_str(buf, sizeof(buf), &p);
3263                 if (ret < 0) {
3264                     switch(c) {
3265                     case 'F':
3266                         monitor_printf(mon, "%s: filename expected\n",
3267                                        cmdname);
3268                         break;
3269                     case 'B':
3270                         monitor_printf(mon, "%s: block device name expected\n",
3271                                        cmdname);
3272                         break;
3273                     default:
3274                         monitor_printf(mon, "%s: string expected\n", cmdname);
3275                         break;
3276                     }
3277                     goto fail;
3278                 }
3279                 qdict_put(qdict, key, qstring_from_str(buf));
3280             }
3281             break;
3282         case '/':
3283             {
3284                 int count, format, size;
3285
3286                 while (qemu_isspace(*p))
3287                     p++;
3288                 if (*p == '/') {
3289                     /* format found */
3290                     p++;
3291                     count = 1;
3292                     if (qemu_isdigit(*p)) {
3293                         count = 0;
3294                         while (qemu_isdigit(*p)) {
3295                             count = count * 10 + (*p - '0');
3296                             p++;
3297                         }
3298                     }
3299                     size = -1;
3300                     format = -1;
3301                     for(;;) {
3302                         switch(*p) {
3303                         case 'o':
3304                         case 'd':
3305                         case 'u':
3306                         case 'x':
3307                         case 'i':
3308                         case 'c':
3309                             format = *p++;
3310                             break;
3311                         case 'b':
3312                             size = 1;
3313                             p++;
3314                             break;
3315                         case 'h':
3316                             size = 2;
3317                             p++;
3318                             break;
3319                         case 'w':
3320                             size = 4;
3321                             p++;
3322                             break;
3323                         case 'g':
3324                         case 'L':
3325                             size = 8;
3326                             p++;
3327                             break;
3328                         default:
3329                             goto next;
3330                         }
3331                     }
3332                 next:
3333                     if (*p != '\0' && !qemu_isspace(*p)) {
3334                         monitor_printf(mon, "invalid char in format: '%c'\n",
3335                                        *p);
3336                         goto fail;
3337                     }
3338                     if (format < 0)
3339                         format = default_fmt_format;
3340                     if (format != 'i') {
3341                         /* for 'i', not specifying a size gives -1 as size */
3342                         if (size < 0)
3343                             size = default_fmt_size;
3344                         default_fmt_size = size;
3345                     }
3346                     default_fmt_format = format;
3347                 } else {
3348                     count = 1;
3349                     format = default_fmt_format;
3350                     if (format != 'i') {
3351                         size = default_fmt_size;
3352                     } else {
3353                         size = -1;
3354                     }
3355                 }
3356                 qdict_put(qdict, "count", qint_from_int(count));
3357                 qdict_put(qdict, "format", qint_from_int(format));
3358                 qdict_put(qdict, "size", qint_from_int(size));
3359             }
3360             break;
3361         case 'i':
3362         case 'l':
3363             {
3364                 int64_t val;
3365
3366                 while (qemu_isspace(*p))
3367                     p++;
3368                 if (*typestr == '?' || *typestr == '.') {
3369                     if (*typestr == '?') {
3370                         if (*p == '\0') {
3371                             typestr++;
3372                             break;
3373                         }
3374                     } else {
3375                         if (*p == '.') {
3376                             p++;
3377                             while (qemu_isspace(*p))
3378                                 p++;
3379                         } else {
3380                             typestr++;
3381                             break;
3382                         }
3383                     }
3384                     typestr++;
3385                 }
3386                 if (get_expr(mon, &val, &p))
3387                     goto fail;
3388                 /* Check if 'i' is greater than 32-bit */
3389                 if ((c == 'i') && ((val >> 32) & 0xffffffff)) {
3390                     monitor_printf(mon, "\'%s\' has failed: ", cmdname);
3391                     monitor_printf(mon, "integer is for 32-bit values\n");
3392                     goto fail;
3393                 }
3394                 qdict_put(qdict, key, qint_from_int(val));
3395             }
3396             break;
3397         case '-':
3398             {
3399                 const char *tmp = p;
3400                 int has_option, skip_key = 0;
3401                 /* option */
3402
3403                 c = *typestr++;
3404                 if (c == '\0')
3405                     goto bad_type;
3406                 while (qemu_isspace(*p))
3407                     p++;
3408                 has_option = 0;
3409                 if (*p == '-') {
3410                     p++;
3411                     if(c != *p) {
3412                         if(!is_valid_option(p, typestr)) {
3413
3414                             monitor_printf(mon, "%s: unsupported option -%c\n",
3415                                            cmdname, *p);
3416                             goto fail;
3417                         } else {
3418                             skip_key = 1;
3419                         }
3420                     }
3421                     if(skip_key) {
3422                         p = tmp;
3423                     } else {
3424                         p++;
3425                         has_option = 1;
3426                     }
3427                 }
3428                 qdict_put(qdict, key, qint_from_int(has_option));
3429             }
3430             break;
3431         default:
3432         bad_type:
3433             monitor_printf(mon, "%s: unknown type '%c'\n", cmdname, c);
3434             goto fail;
3435         }
3436         qemu_free(key);
3437         key = NULL;
3438     }
3439     /* check that all arguments were parsed */
3440     while (qemu_isspace(*p))
3441         p++;
3442     if (*p != '\0') {
3443         monitor_printf(mon, "%s: extraneous characters at the end of line\n",
3444                        cmdname);
3445         goto fail;
3446     }
3447
3448     return cmd;
3449
3450 fail:
3451     qemu_free(key);
3452     return NULL;
3453 }
3454
3455 static void monitor_print_error(Monitor *mon)
3456 {
3457     qerror_print(mon->error);
3458     QDECREF(mon->error);
3459     mon->error = NULL;
3460 }
3461
3462 static void monitor_call_handler(Monitor *mon, const mon_cmd_t *cmd,
3463                                  const QDict *params)
3464 {
3465     QObject *data = NULL;
3466
3467     cmd->mhandler.cmd_new(mon, params, &data);
3468
3469     if (monitor_ctrl_mode(mon)) {
3470         /* Monitor Protocol */
3471         monitor_protocol_emitter(mon, data);
3472     } else {
3473         /* User Protocol */
3474          if (data)
3475             cmd->user_print(mon, data);
3476     }
3477
3478     qobject_decref(data);
3479 }
3480
3481 static void handle_user_command(Monitor *mon, const char *cmdline)
3482 {
3483     QDict *qdict;
3484     const mon_cmd_t *cmd;
3485
3486     qdict = qdict_new();
3487
3488     cmd = monitor_parse_command(mon, cmdline, qdict);
3489     if (!cmd)
3490         goto out;
3491
3492     qemu_errors_to_mon(mon);
3493
3494     if (monitor_handler_ported(cmd)) {
3495         monitor_call_handler(mon, cmd, qdict);
3496     } else {
3497         cmd->mhandler.cmd(mon, qdict);
3498     }
3499
3500     if (monitor_has_error(mon))
3501         monitor_print_error(mon);
3502
3503     qemu_errors_to_previous();
3504
3505 out:
3506     QDECREF(qdict);
3507 }
3508
3509 static void cmd_completion(const char *name, const char *list)
3510 {
3511     const char *p, *pstart;
3512     char cmd[128];
3513     int len;
3514
3515     p = list;
3516     for(;;) {
3517         pstart = p;
3518         p = strchr(p, '|');
3519         if (!p)
3520             p = pstart + strlen(pstart);
3521         len = p - pstart;
3522         if (len > sizeof(cmd) - 2)
3523             len = sizeof(cmd) - 2;
3524         memcpy(cmd, pstart, len);
3525         cmd[len] = '\0';
3526         if (name[0] == '\0' || !strncmp(name, cmd, strlen(name))) {
3527             readline_add_completion(cur_mon->rs, cmd);
3528         }
3529         if (*p == '\0')
3530             break;
3531         p++;
3532     }
3533 }
3534
3535 static void file_completion(const char *input)
3536 {
3537     DIR *ffs;
3538     struct dirent *d;
3539     char path[1024];
3540     char file[1024], file_prefix[1024];
3541     int input_path_len;
3542     const char *p;
3543
3544     p = strrchr(input, '/');
3545     if (!p) {
3546         input_path_len = 0;
3547         pstrcpy(file_prefix, sizeof(file_prefix), input);
3548         pstrcpy(path, sizeof(path), ".");
3549     } else {
3550         input_path_len = p - input + 1;
3551         memcpy(path, input, input_path_len);
3552         if (input_path_len > sizeof(path) - 1)
3553             input_path_len = sizeof(path) - 1;
3554         path[input_path_len] = '\0';
3555         pstrcpy(file_prefix, sizeof(file_prefix), p + 1);
3556     }
3557 #ifdef DEBUG_COMPLETION
3558     monitor_printf(cur_mon, "input='%s' path='%s' prefix='%s'\n",
3559                    input, path, file_prefix);
3560 #endif
3561     ffs = opendir(path);
3562     if (!ffs)
3563         return;
3564     for(;;) {
3565         struct stat sb;
3566         d = readdir(ffs);
3567         if (!d)
3568             break;
3569         if (strstart(d->d_name, file_prefix, NULL)) {
3570             memcpy(file, input, input_path_len);
3571             if (input_path_len < sizeof(file))
3572                 pstrcpy(file + input_path_len, sizeof(file) - input_path_len,
3573                         d->d_name);
3574             /* stat the file to find out if it's a directory.
3575              * In that case add a slash to speed up typing long paths
3576              */
3577             stat(file, &sb);
3578             if(S_ISDIR(sb.st_mode))
3579                 pstrcat(file, sizeof(file), "/");
3580             readline_add_completion(cur_mon->rs, file);
3581         }
3582     }
3583     closedir(ffs);
3584 }
3585
3586 static void block_completion_it(void *opaque, BlockDriverState *bs)
3587 {
3588     const char *name = bdrv_get_device_name(bs);
3589     const char *input = opaque;
3590
3591     if (input[0] == '\0' ||
3592         !strncmp(name, (char *)input, strlen(input))) {
3593         readline_add_completion(cur_mon->rs, name);
3594     }
3595 }
3596
3597 /* NOTE: this parser is an approximate form of the real command parser */
3598 static void parse_cmdline(const char *cmdline,
3599                          int *pnb_args, char **args)
3600 {
3601     const char *p;
3602     int nb_args, ret;
3603     char buf[1024];
3604
3605     p = cmdline;
3606     nb_args = 0;
3607     for(;;) {
3608         while (qemu_isspace(*p))
3609             p++;
3610         if (*p == '\0')
3611             break;
3612         if (nb_args >= MAX_ARGS)
3613             break;
3614         ret = get_str(buf, sizeof(buf), &p);
3615         args[nb_args] = qemu_strdup(buf);
3616         nb_args++;
3617         if (ret < 0)
3618             break;
3619     }
3620     *pnb_args = nb_args;
3621 }
3622
3623 static const char *next_arg_type(const char *typestr)
3624 {
3625     const char *p = strchr(typestr, ':');
3626     return (p != NULL ? ++p : typestr);
3627 }
3628
3629 static void monitor_find_completion(const char *cmdline)
3630 {
3631     const char *cmdname;
3632     char *args[MAX_ARGS];
3633     int nb_args, i, len;
3634     const char *ptype, *str;
3635     const mon_cmd_t *cmd;
3636     const KeyDef *key;
3637
3638     parse_cmdline(cmdline, &nb_args, args);
3639 #ifdef DEBUG_COMPLETION
3640     for(i = 0; i < nb_args; i++) {
3641         monitor_printf(cur_mon, "arg%d = '%s'\n", i, (char *)args[i]);
3642     }
3643 #endif
3644
3645     /* if the line ends with a space, it means we want to complete the
3646        next arg */
3647     len = strlen(cmdline);
3648     if (len > 0 && qemu_isspace(cmdline[len - 1])) {
3649         if (nb_args >= MAX_ARGS)
3650             return;
3651         args[nb_args++] = qemu_strdup("");
3652     }
3653     if (nb_args <= 1) {
3654         /* command completion */
3655         if (nb_args == 0)
3656             cmdname = "";
3657         else
3658             cmdname = args[0];
3659         readline_set_completion_index(cur_mon->rs, strlen(cmdname));
3660         for(cmd = mon_cmds; cmd->name != NULL; cmd++) {
3661             cmd_completion(cmdname, cmd->name);
3662         }
3663     } else {
3664         /* find the command */
3665         for(cmd = mon_cmds; cmd->name != NULL; cmd++) {
3666             if (compare_cmd(args[0], cmd->name))
3667                 goto found;
3668         }
3669         return;
3670     found:
3671         ptype = next_arg_type(cmd->args_type);
3672         for(i = 0; i < nb_args - 2; i++) {
3673             if (*ptype != '\0') {
3674                 ptype = next_arg_type(ptype);
3675                 while (*ptype == '?')
3676                     ptype = next_arg_type(ptype);
3677             }
3678         }
3679         str = args[nb_args - 1];
3680         if (*ptype == '-' && ptype[1] != '\0') {
3681             ptype += 2;
3682         }
3683         switch(*ptype) {
3684         case 'F':
3685             /* file completion */
3686             readline_set_completion_index(cur_mon->rs, strlen(str));
3687             file_completion(str);
3688             break;
3689         case 'B':
3690             /* block device name completion */
3691             readline_set_completion_index(cur_mon->rs, strlen(str));
3692             bdrv_iterate(block_completion_it, (void *)str);
3693             break;
3694         case 's':
3695             /* XXX: more generic ? */
3696             if (!strcmp(cmd->name, "info")) {
3697                 readline_set_completion_index(cur_mon->rs, strlen(str));
3698                 for(cmd = info_cmds; cmd->name != NULL; cmd++) {
3699                     cmd_completion(str, cmd->name);
3700                 }
3701             } else if (!strcmp(cmd->name, "sendkey")) {
3702                 char *sep = strrchr(str, '-');
3703                 if (sep)
3704                     str = sep + 1;
3705                 readline_set_completion_index(cur_mon->rs, strlen(str));
3706                 for(key = key_defs; key->name != NULL; key++) {
3707                     cmd_completion(str, key->name);
3708                 }
3709             } else if (!strcmp(cmd->name, "help|?")) {
3710                 readline_set_completion_index(cur_mon->rs, strlen(str));
3711                 for (cmd = mon_cmds; cmd->name != NULL; cmd++) {
3712                     cmd_completion(str, cmd->name);
3713                 }
3714             }
3715             break;
3716         default:
3717             break;
3718         }
3719     }
3720     for(i = 0; i < nb_args; i++)
3721         qemu_free(args[i]);
3722 }
3723
3724 static int monitor_can_read(void *opaque)
3725 {
3726     Monitor *mon = opaque;
3727
3728     return (mon->suspend_cnt == 0) ? 128 : 0;
3729 }
3730
3731 typedef struct CmdArgs {
3732     QString *name;
3733     int type;
3734     int flag;
3735     int optional;
3736 } CmdArgs;
3737
3738 static int check_opt(const CmdArgs *cmd_args, const char *name, QDict *args)
3739 {
3740     if (!cmd_args->optional) {
3741         qemu_error_new(QERR_MISSING_PARAMETER, name);
3742         return -1;
3743     }
3744
3745     if (cmd_args->type == '-') {
3746         /* handlers expect a value, they need to be changed */
3747         qdict_put(args, name, qint_from_int(0));
3748     }
3749
3750     return 0;
3751 }
3752
3753 static int check_arg(const CmdArgs *cmd_args, QDict *args)
3754 {
3755     QObject *value;
3756     const char *name;
3757
3758     name = qstring_get_str(cmd_args->name);
3759
3760     if (!args) {
3761         return check_opt(cmd_args, name, args);
3762     }
3763
3764     value = qdict_get(args, name);
3765     if (!value) {
3766         return check_opt(cmd_args, name, args);
3767     }
3768
3769     switch (cmd_args->type) {
3770         case 'F':
3771         case 'B':
3772         case 's':
3773             if (qobject_type(value) != QTYPE_QSTRING) {
3774                 qemu_error_new(QERR_INVALID_PARAMETER_TYPE, name, "string");
3775                 return -1;
3776             }
3777             break;
3778         case '/': {
3779             int i;
3780             const char *keys[] = { "count", "format", "size", NULL };
3781
3782             for (i = 0; keys[i]; i++) {
3783                 QObject *obj = qdict_get(args, keys[i]);
3784                 if (!obj) {
3785                     qemu_error_new(QERR_MISSING_PARAMETER, name);
3786                     return -1;
3787                 }
3788                 if (qobject_type(obj) != QTYPE_QINT) {
3789                     qemu_error_new(QERR_INVALID_PARAMETER_TYPE, name, "int");
3790                     return -1;
3791                 }
3792             }
3793             break;
3794         }
3795         case 'i':
3796         case 'l':
3797             if (qobject_type(value) != QTYPE_QINT) {
3798                 qemu_error_new(QERR_INVALID_PARAMETER_TYPE, name, "int");
3799                 return -1;
3800             }
3801             break;
3802         case '-':
3803             if (qobject_type(value) != QTYPE_QINT &&
3804                 qobject_type(value) != QTYPE_QBOOL) {
3805                 qemu_error_new(QERR_INVALID_PARAMETER_TYPE, name, "bool");
3806                 return -1;
3807             }
3808             if (qobject_type(value) == QTYPE_QBOOL) {
3809                 /* handlers expect a QInt, they need to be changed */
3810                 qdict_put(args, name,
3811                          qint_from_int(qbool_get_int(qobject_to_qbool(value))));
3812             }
3813             break;
3814         default:
3815             /* impossible */
3816             abort();
3817     }
3818
3819     return 0;
3820 }
3821
3822 static void cmd_args_init(CmdArgs *cmd_args)
3823 {
3824     cmd_args->name = qstring_new();
3825     cmd_args->type = cmd_args->flag = cmd_args->optional = 0;
3826 }
3827
3828 /*
3829  * This is not trivial, we have to parse Monitor command's argument
3830  * type syntax to be able to check the arguments provided by clients.
3831  *
3832  * In the near future we will be using an array for that and will be
3833  * able to drop all this parsing...
3834  */
3835 static int monitor_check_qmp_args(const mon_cmd_t *cmd, QDict *args)
3836 {
3837     int err;
3838     const char *p;
3839     CmdArgs cmd_args;
3840
3841     if (cmd->args_type == NULL) {
3842         return (qdict_size(args) == 0 ? 0 : -1);
3843     }
3844
3845     err = 0;
3846     cmd_args_init(&cmd_args);
3847
3848     for (p = cmd->args_type;; p++) {
3849         if (*p == ':') {
3850             cmd_args.type = *++p;
3851             p++;
3852             if (cmd_args.type == '-') {
3853                 cmd_args.flag = *p++;
3854                 cmd_args.optional = 1;
3855             } else if (*p == '?') {
3856                 cmd_args.optional = 1;
3857                 p++;
3858             }
3859
3860             assert(*p == ',' || *p == '\0');
3861             err = check_arg(&cmd_args, args);
3862
3863             QDECREF(cmd_args.name);
3864             cmd_args_init(&cmd_args);
3865
3866             if (err < 0) {
3867                 break;
3868             }
3869         } else {
3870             qstring_append_chr(cmd_args.name, *p);
3871         }
3872
3873         if (*p == '\0') {
3874             break;
3875         }
3876     }
3877
3878     QDECREF(cmd_args.name);
3879     return err;
3880 }
3881
3882 static void handle_qmp_command(JSONMessageParser *parser, QList *tokens)
3883 {
3884     int err;
3885     QObject *obj;
3886     QDict *input, *args;
3887     const mon_cmd_t *cmd;
3888     Monitor *mon = cur_mon;
3889     const char *cmd_name, *info_item;
3890
3891     args = NULL;
3892     qemu_errors_to_mon(mon);
3893
3894     obj = json_parser_parse(tokens, NULL);
3895     if (!obj) {
3896         // FIXME: should be triggered in json_parser_parse()
3897         qemu_error_new(QERR_JSON_PARSING);
3898         goto err_out;
3899     } else if (qobject_type(obj) != QTYPE_QDICT) {
3900         qemu_error_new(QERR_QMP_BAD_INPUT_OBJECT, "object");
3901         qobject_decref(obj);
3902         goto err_out;
3903     }
3904
3905     input = qobject_to_qdict(obj);
3906
3907     mon->mc->id = qdict_get(input, "id");
3908     qobject_incref(mon->mc->id);
3909
3910     obj = qdict_get(input, "execute");
3911     if (!obj) {
3912         qemu_error_new(QERR_QMP_BAD_INPUT_OBJECT, "execute");
3913         goto err_input;
3914     } else if (qobject_type(obj) != QTYPE_QSTRING) {
3915         qemu_error_new(QERR_QMP_BAD_INPUT_OBJECT, "string");
3916         goto err_input;
3917     }
3918
3919     cmd_name = qstring_get_str(qobject_to_qstring(obj));
3920
3921     /*
3922      * XXX: We need this special case until we get info handlers
3923      * converted into 'query-' commands
3924      */
3925     if (compare_cmd(cmd_name, "info")) {
3926         qemu_error_new(QERR_COMMAND_NOT_FOUND, cmd_name);
3927         goto err_input;
3928     } else if (strstart(cmd_name, "query-", &info_item)) {
3929         cmd = monitor_find_command("info");
3930         qdict_put_obj(input, "arguments",
3931                       qobject_from_jsonf("{ 'item': %s }", info_item));
3932     } else {
3933         cmd = monitor_find_command(cmd_name);
3934         if (!cmd) {
3935             qemu_error_new(QERR_COMMAND_NOT_FOUND, cmd_name);
3936             goto err_input;
3937         }
3938     }
3939
3940     obj = qdict_get(input, "arguments");
3941     if (!obj) {
3942         args = qdict_new();
3943     } else {
3944         args = qobject_to_qdict(obj);
3945         QINCREF(args);
3946     }
3947
3948     QDECREF(input);
3949
3950     err = monitor_check_qmp_args(cmd, args);
3951     if (err < 0) {
3952         goto err_out;
3953     }
3954
3955     monitor_call_handler(mon, cmd, args);
3956     goto out;
3957
3958 err_input:
3959     QDECREF(input);
3960 err_out:
3961     monitor_protocol_emitter(mon, NULL);
3962 out:
3963     QDECREF(args);
3964     qemu_errors_to_previous();
3965 }
3966
3967 /**
3968  * monitor_control_read(): Read and handle QMP input
3969  */
3970 static void monitor_control_read(void *opaque, const uint8_t *buf, int size)
3971 {
3972     Monitor *old_mon = cur_mon;
3973
3974     cur_mon = opaque;
3975
3976     json_message_parser_feed(&cur_mon->mc->parser, (const char *) buf, size);
3977
3978     cur_mon = old_mon;
3979 }
3980
3981 static void monitor_read(void *opaque, const uint8_t *buf, int size)
3982 {
3983     Monitor *old_mon = cur_mon;
3984     int i;
3985
3986     cur_mon = opaque;
3987
3988     if (cur_mon->rs) {
3989         for (i = 0; i < size; i++)
3990             readline_handle_byte(cur_mon->rs, buf[i]);
3991     } else {
3992         if (size == 0 || buf[size - 1] != 0)
3993             monitor_printf(cur_mon, "corrupted command\n");
3994         else
3995             handle_user_command(cur_mon, (char *)buf);
3996     }
3997
3998     cur_mon = old_mon;
3999 }
4000
4001 static void monitor_command_cb(Monitor *mon, const char *cmdline, void *opaque)
4002 {
4003     monitor_suspend(mon);
4004     handle_user_command(mon, cmdline);
4005     monitor_resume(mon);
4006 }
4007
4008 int monitor_suspend(Monitor *mon)
4009 {
4010     if (!mon->rs)
4011         return -ENOTTY;
4012     mon->suspend_cnt++;
4013     return 0;
4014 }
4015
4016 void monitor_resume(Monitor *mon)
4017 {
4018     if (!mon->rs)
4019         return;
4020     if (--mon->suspend_cnt == 0)
4021         readline_show_prompt(mon->rs);
4022 }
4023
4024 /**
4025  * monitor_control_event(): Print QMP gretting
4026  */
4027 static void monitor_control_event(void *opaque, int event)
4028 {
4029     if (event == CHR_EVENT_OPENED) {
4030         QObject *data;
4031         Monitor *mon = opaque;
4032
4033         json_message_parser_init(&mon->mc->parser, handle_qmp_command);
4034
4035         data = qobject_from_jsonf("{ 'QMP': { 'capabilities': [] } }");
4036         assert(data != NULL);
4037
4038         monitor_json_emitter(mon, data);
4039         qobject_decref(data);
4040     }
4041 }
4042
4043 static void monitor_event(void *opaque, int event)
4044 {
4045     Monitor *mon = opaque;
4046
4047     switch (event) {
4048     case CHR_EVENT_MUX_IN:
4049         mon->mux_out = 0;
4050         if (mon->reset_seen) {
4051             readline_restart(mon->rs);
4052             monitor_resume(mon);
4053             monitor_flush(mon);
4054         } else {
4055             mon->suspend_cnt = 0;
4056         }
4057         break;
4058
4059     case CHR_EVENT_MUX_OUT:
4060         if (mon->reset_seen) {
4061             if (mon->suspend_cnt == 0) {
4062                 monitor_printf(mon, "\n");
4063             }
4064             monitor_flush(mon);
4065             monitor_suspend(mon);
4066         } else {
4067             mon->suspend_cnt++;
4068         }
4069         mon->mux_out = 1;
4070         break;
4071
4072     case CHR_EVENT_OPENED:
4073         monitor_printf(mon, "QEMU %s monitor - type 'help' for more "
4074                        "information\n", QEMU_VERSION);
4075         if (!mon->mux_out) {
4076             readline_show_prompt(mon->rs);
4077         }
4078         mon->reset_seen = 1;
4079         break;
4080     }
4081 }
4082
4083
4084 /*
4085  * Local variables:
4086  *  c-indent-level: 4
4087  *  c-basic-offset: 4
4088  *  tab-width: 8
4089  * End:
4090  */
4091
4092 void monitor_init(CharDriverState *chr, int flags)
4093 {
4094     static int is_first_init = 1;
4095     Monitor *mon;
4096
4097     if (is_first_init) {
4098         key_timer = qemu_new_timer(vm_clock, release_keys, NULL);
4099         is_first_init = 0;
4100     }
4101
4102     mon = qemu_mallocz(sizeof(*mon));
4103
4104     mon->chr = chr;
4105     mon->flags = flags;
4106     if (flags & MONITOR_USE_READLINE) {
4107         mon->rs = readline_init(mon, monitor_find_completion);
4108         monitor_read_command(mon, 0);
4109     }
4110
4111     if (monitor_ctrl_mode(mon)) {
4112         mon->mc = qemu_mallocz(sizeof(MonitorControl));
4113         /* Control mode requires special handlers */
4114         qemu_chr_add_handlers(chr, monitor_can_read, monitor_control_read,
4115                               monitor_control_event, mon);
4116     } else {
4117         qemu_chr_add_handlers(chr, monitor_can_read, monitor_read,
4118                               monitor_event, mon);
4119     }
4120
4121     QLIST_INSERT_HEAD(&mon_list, mon, entry);
4122     if (!cur_mon || (flags & MONITOR_IS_DEFAULT))
4123         cur_mon = mon;
4124 }
4125
4126 static void bdrv_password_cb(Monitor *mon, const char *password, void *opaque)
4127 {
4128     BlockDriverState *bs = opaque;
4129     int ret = 0;
4130
4131     if (bdrv_set_key(bs, password) != 0) {
4132         monitor_printf(mon, "invalid password\n");
4133         ret = -EPERM;
4134     }
4135     if (mon->password_completion_cb)
4136         mon->password_completion_cb(mon->password_opaque, ret);
4137
4138     monitor_read_command(mon, 1);
4139 }
4140
4141 void monitor_read_bdrv_key_start(Monitor *mon, BlockDriverState *bs,
4142                                  BlockDriverCompletionFunc *completion_cb,
4143                                  void *opaque)
4144 {
4145     int err;
4146
4147     if (!bdrv_key_required(bs)) {
4148         if (completion_cb)
4149             completion_cb(opaque, 0);
4150         return;
4151     }
4152
4153     if (monitor_ctrl_mode(mon)) {
4154         qemu_error_new(QERR_DEVICE_ENCRYPTED, bdrv_get_device_name(bs));
4155         return;
4156     }
4157
4158     monitor_printf(mon, "%s (%s) is encrypted.\n", bdrv_get_device_name(bs),
4159                    bdrv_get_encrypted_filename(bs));
4160
4161     mon->password_completion_cb = completion_cb;
4162     mon->password_opaque = opaque;
4163
4164     err = monitor_read_password(mon, bdrv_password_cb, bs);
4165
4166     if (err && completion_cb)
4167         completion_cb(opaque, err);
4168 }
4169
4170 typedef struct QemuErrorSink QemuErrorSink;
4171 struct QemuErrorSink {
4172     enum {
4173         ERR_SINK_FILE,
4174         ERR_SINK_MONITOR,
4175     } dest;
4176     union {
4177         FILE    *fp;
4178         Monitor *mon;
4179     };
4180     QemuErrorSink *previous;
4181 };
4182
4183 static QemuErrorSink *qemu_error_sink;
4184
4185 void qemu_errors_to_file(FILE *fp)
4186 {
4187     QemuErrorSink *sink;
4188
4189     sink = qemu_mallocz(sizeof(*sink));
4190     sink->dest = ERR_SINK_FILE;
4191     sink->fp = fp;
4192     sink->previous = qemu_error_sink;
4193     qemu_error_sink = sink;
4194 }
4195
4196 void qemu_errors_to_mon(Monitor *mon)
4197 {
4198     QemuErrorSink *sink;
4199
4200     sink = qemu_mallocz(sizeof(*sink));
4201     sink->dest = ERR_SINK_MONITOR;
4202     sink->mon = mon;
4203     sink->previous = qemu_error_sink;
4204     qemu_error_sink = sink;
4205 }
4206
4207 void qemu_errors_to_previous(void)
4208 {
4209     QemuErrorSink *sink;
4210
4211     assert(qemu_error_sink != NULL);
4212     sink = qemu_error_sink;
4213     qemu_error_sink = sink->previous;
4214     qemu_free(sink);
4215 }
4216
4217 void qemu_error(const char *fmt, ...)
4218 {
4219     va_list args;
4220
4221     assert(qemu_error_sink != NULL);
4222     switch (qemu_error_sink->dest) {
4223     case ERR_SINK_FILE:
4224         va_start(args, fmt);
4225         vfprintf(qemu_error_sink->fp, fmt, args);
4226         va_end(args);
4227         break;
4228     case ERR_SINK_MONITOR:
4229         va_start(args, fmt);
4230         monitor_vprintf(qemu_error_sink->mon, fmt, args);
4231         va_end(args);
4232         break;
4233     }
4234 }
4235
4236 void qemu_error_internal(const char *file, int linenr, const char *func,
4237                          const char *fmt, ...)
4238 {
4239     va_list va;
4240     QError *qerror;
4241
4242     assert(qemu_error_sink != NULL);
4243
4244     va_start(va, fmt);
4245     qerror = qerror_from_info(file, linenr, func, fmt, &va);
4246     va_end(va);
4247
4248     switch (qemu_error_sink->dest) {
4249     case ERR_SINK_FILE:
4250         qerror_print(qerror);
4251         QDECREF(qerror);
4252         break;
4253     case ERR_SINK_MONITOR:
4254         assert(qemu_error_sink->mon->error == NULL);
4255         qemu_error_sink->mon->error = qerror;
4256         break;
4257     }
4258 }