monitor/misc.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
  25 #include "qemu/osdep.h"
  26 #include "monitor-internal.h"
  27 #include "cpu.h"
  28 #include "monitor/qdev.h"
  29 #include "hw/usb.h"
  30 #include "hw/pci/pci.h"
  31 #include "sysemu/watchdog.h"
  32 #include "hw/loader.h"
  33 #include "exec/gdbstub.h"
  34 #include "net/net.h"
  35 #include "net/slirp.h"
  36 #include "chardev/char-mux.h"
  37 #include "ui/qemu-spice.h"
  38 #include "qemu/config-file.h"
  39 #include "qemu/ctype.h"
  40 #include "ui/console.h"
  41 #include "ui/input.h"
  42 #include "audio/audio.h"
  43 #include "disas/disas.h"
  44 #include "sysemu/balloon.h"
  45 #include "qemu/timer.h"
  46 #include "sysemu/hw_accel.h"
  47 #include "sysemu/runstate.h"
  48 #include "authz/list.h"
  49 #include "qapi/util.h"
  50 #include "sysemu/blockdev.h"
  51 #include "sysemu/sysemu.h"
  52 #include "sysemu/tcg.h"
  53 #include "sysemu/tpm.h"
  54 #include "qapi/qmp/qdict.h"
  55 #include "qapi/qmp/qerror.h"
  56 #include "qapi/qmp/qstring.h"
  57 #include "qom/object_interfaces.h"
  58 #include "trace/control.h"
  59 #include "monitor/hmp-target.h"
  60 #include "monitor/hmp.h"
  61 #ifdef CONFIG_TRACE_SIMPLE
  62 #include "trace/simple.h"
  63 #endif
  64 #include "exec/memory.h"
  65 #include "exec/exec-all.h"
  66 #include "qemu/option.h"
  67 #include "qemu/thread.h"
  68 #include "block/qapi.h"
  69 #include "block/block-hmp-cmds.h"
  70 #include "qapi/qapi-commands-char.h"
  71 #include "qapi/qapi-commands-control.h"
  72 #include "qapi/qapi-commands-migration.h"
  73 #include "qapi/qapi-commands-misc.h"
  74 #include "qapi/qapi-commands-qom.h"
  75 #include "qapi/qapi-commands-trace.h"
  76 #include "qapi/qapi-init-commands.h"
  77 #include "qapi/error.h"
  78 #include "qapi/qmp-event.h"
  79 #include "sysemu/cpus.h"
  80 #include "qemu/cutils.h"
  81 #include "tcg/tcg.h"
  82
  83 #if defined(TARGET_S390X)
  84 #include "hw/s390x/storage-keys.h"
  85 #include "hw/s390x/storage-attributes.h"
  86 #endif
  87
  88 /* file descriptors passed via SCM_RIGHTS */
  89 typedef struct mon_fd_t mon_fd_t;
  90 struct mon_fd_t {
  91     char *name;
  92     int fd;
  93     QLIST_ENTRY(mon_fd_t) next;
  94 };
  95
  96 /* file descriptor associated with a file descriptor set */
  97 typedef struct MonFdsetFd MonFdsetFd;
  98 struct MonFdsetFd {
  99     int fd;
 100     bool removed;
 101     char *opaque;
 102     QLIST_ENTRY(MonFdsetFd) next;
 103 };
 104
 105 /* file descriptor set containing fds passed via SCM_RIGHTS */
 106 typedef struct MonFdset MonFdset;
 107 struct MonFdset {
 108     int64_t id;
 109     QLIST_HEAD(, MonFdsetFd) fds;
 110     QLIST_HEAD(, MonFdsetFd) dup_fds;
 111     QLIST_ENTRY(MonFdset) next;
 112 };
 113
 114 /* Protects mon_fdsets */
 115 static QemuMutex mon_fdsets_lock;
 116 static QLIST_HEAD(, MonFdset) mon_fdsets;
 117
 118 static HMPCommand hmp_info_cmds[];
 119
 120 char *qmp_human_monitor_command(const char *command_line, bool has_cpu_index,
 121                                 int64_t cpu_index, Error **errp)
 122 {
 123     char *output = NULL;
 124     Monitor *old_mon;
 125     MonitorHMP hmp = {};
 126
 127     monitor_data_init(&hmp.common, false, true, false);
 128
 129     old_mon = cur_mon;
 130     cur_mon = &hmp.common;
 131
 132     if (has_cpu_index) {
 133         int ret = monitor_set_cpu(cpu_index);
 134         if (ret < 0) {
 135             cur_mon = old_mon;
 136             error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "cpu-index",
 137                        "a CPU number");
 138             goto out;
 139         }
 140     }
 141
 142     handle_hmp_command(&hmp, command_line);
 143     cur_mon = old_mon;
 144
 145     qemu_mutex_lock(&hmp.common.mon_lock);
 146     if (qstring_get_length(hmp.common.outbuf) > 0) {
 147         output = g_strdup(qstring_get_str(hmp.common.outbuf));
 148     } else {
 149         output = g_strdup("");
 150     }
 151     qemu_mutex_unlock(&hmp.common.mon_lock);
 152
 153 out:
 154     monitor_data_destroy(&hmp.common);
 155     return output;
 156 }
 157
 158 /**
 159  * Is @name in the '|' separated list of names @list?
 160  */
 161 int hmp_compare_cmd(const char *name, const char *list)
 162 {
 163     const char *p, *pstart;
 164     int len;
 165     len = strlen(name);
 166     p = list;
 167     for (;;) {
 168         pstart = p;
 169         p = qemu_strchrnul(p, '|');
 170         if ((p - pstart) == len && !memcmp(pstart, name, len)) {
 171             return 1;
 172         }
 173         if (*p == '\0') {
 174             break;
 175         }
 176         p++;
 177     }
 178     return 0;
 179 }
 180
 181 static void do_help_cmd(Monitor *mon, const QDict *qdict)
 182 {
 183     help_cmd(mon, qdict_get_try_str(qdict, "name"));
 184 }
 185
 186 static void hmp_trace_event(Monitor *mon, const QDict *qdict)
 187 {
 188     const char *tp_name = qdict_get_str(qdict, "name");
 189     bool new_state = qdict_get_bool(qdict, "option");
 190     bool has_vcpu = qdict_haskey(qdict, "vcpu");
 191     int vcpu = qdict_get_try_int(qdict, "vcpu", 0);
 192     Error *local_err = NULL;
 193
 194     if (vcpu < 0) {
 195         monitor_printf(mon, "argument vcpu must be positive");
 196         return;
 197     }
 198
 199     qmp_trace_event_set_state(tp_name, new_state, true, true, has_vcpu, vcpu, &local_err);
 200     if (local_err) {
 201         error_report_err(local_err);
 202     }
 203 }
 204
 205 #ifdef CONFIG_TRACE_SIMPLE
 206 static void hmp_trace_file(Monitor *mon, const QDict *qdict)
 207 {
 208     const char *op = qdict_get_try_str(qdict, "op");
 209     const char *arg = qdict_get_try_str(qdict, "arg");
 210
 211     if (!op) {
 212         st_print_trace_file_status();
 213     } else if (!strcmp(op, "on")) {
 214         st_set_trace_file_enabled(true);
 215     } else if (!strcmp(op, "off")) {
 216         st_set_trace_file_enabled(false);
 217     } else if (!strcmp(op, "flush")) {
 218         st_flush_trace_buffer();
 219     } else if (!strcmp(op, "set")) {
 220         if (arg) {
 221             st_set_trace_file(arg);
 222         }
 223     } else {
 224         monitor_printf(mon, "unexpected argument \"%s\"\n", op);
 225         help_cmd(mon, "trace-file");
 226     }
 227 }
 228 #endif
 229
 230 static void hmp_info_help(Monitor *mon, const QDict *qdict)
 231 {
 232     help_cmd(mon, "info");
 233 }
 234
 235 static void monitor_init_qmp_commands(void)
 236 {
 237     /*
 238      * Two command lists:
 239      * - qmp_commands contains all QMP commands
 240      * - qmp_cap_negotiation_commands contains just
 241      *   "qmp_capabilities", to enforce capability negotiation
 242      */
 243
 244     qmp_init_marshal(&qmp_commands);
 245
 246     qmp_register_command(&qmp_commands, "query-qmp-schema",
 247                          qmp_query_qmp_schema, QCO_ALLOW_PRECONFIG);
 248     qmp_register_command(&qmp_commands, "device_add", qmp_device_add,
 249                          QCO_NO_OPTIONS);
 250     qmp_register_command(&qmp_commands, "object-add", qmp_object_add,
 251                          QCO_NO_OPTIONS);
 252
 253     QTAILQ_INIT(&qmp_cap_negotiation_commands);
 254     qmp_register_command(&qmp_cap_negotiation_commands, "qmp_capabilities",
 255                          qmp_marshal_qmp_capabilities, QCO_ALLOW_PRECONFIG);
 256 }
 257
 258 /* Set the current CPU defined by the user. Callers must hold BQL. */
 259 int monitor_set_cpu(int cpu_index)
 260 {
 261     CPUState *cpu;
 262
 263     cpu = qemu_get_cpu(cpu_index);
 264     if (cpu == NULL) {
 265         return -1;
 266     }
 267     g_free(cur_mon->mon_cpu_path);
 268     cur_mon->mon_cpu_path = object_get_canonical_path(OBJECT(cpu));
 269     return 0;
 270 }
 271
 272 /* Callers must hold BQL. */
 273 static CPUState *mon_get_cpu_sync(bool synchronize)
 274 {
 275     CPUState *cpu = NULL;
 276
 277     if (cur_mon->mon_cpu_path) {
 278         cpu = (CPUState *) object_resolve_path_type(cur_mon->mon_cpu_path,
 279                                                     TYPE_CPU, NULL);
 280         if (!cpu) {
 281             g_free(cur_mon->mon_cpu_path);
 282             cur_mon->mon_cpu_path = NULL;
 283         }
 284     }
 285     if (!cur_mon->mon_cpu_path) {
 286         if (!first_cpu) {
 287             return NULL;
 288         }
 289         monitor_set_cpu(first_cpu->cpu_index);
 290         cpu = first_cpu;
 291     }
 292     assert(cpu != NULL);
 293     if (synchronize) {
 294         cpu_synchronize_state(cpu);
 295     }
 296     return cpu;
 297 }
 298
 299 CPUState *mon_get_cpu(void)
 300 {
 301     return mon_get_cpu_sync(true);
 302 }
 303
 304 CPUArchState *mon_get_cpu_env(void)
 305 {
 306     CPUState *cs = mon_get_cpu();
 307
 308     return cs ? cs->env_ptr : NULL;
 309 }
 310
 311 int monitor_get_cpu_index(void)
 312 {
 313     CPUState *cs = mon_get_cpu_sync(false);
 314
 315     return cs ? cs->cpu_index : UNASSIGNED_CPU_INDEX;
 316 }
 317
 318 static void hmp_info_registers(Monitor *mon, const QDict *qdict)
 319 {
 320     bool all_cpus = qdict_get_try_bool(qdict, "cpustate_all", false);
 321     CPUState *cs;
 322
 323     if (all_cpus) {
 324         CPU_FOREACH(cs) {
 325             monitor_printf(mon, "\nCPU#%d\n", cs->cpu_index);
 326             cpu_dump_state(cs, NULL, CPU_DUMP_FPU);
 327         }
 328     } else {
 329         cs = mon_get_cpu();
 330
 331         if (!cs) {
 332             monitor_printf(mon, "No CPU available\n");
 333             return;
 334         }
 335
 336         cpu_dump_state(cs, NULL, CPU_DUMP_FPU);
 337     }
 338 }
 339
 340 #ifdef CONFIG_TCG
 341 static void hmp_info_jit(Monitor *mon, const QDict *qdict)
 342 {
 343     if (!tcg_enabled()) {
 344         error_report("JIT information is only available with accel=tcg");
 345         return;
 346     }
 347
 348     dump_exec_info();
 349     dump_drift_info();
 350 }
 351
 352 static void hmp_info_opcount(Monitor *mon, const QDict *qdict)
 353 {
 354     dump_opcount_info();
 355 }
 356 #endif
 357
 358 static void hmp_info_sync_profile(Monitor *mon, const QDict *qdict)
 359 {
 360     int64_t max = qdict_get_try_int(qdict, "max", 10);
 361     bool mean = qdict_get_try_bool(qdict, "mean", false);
 362     bool coalesce = !qdict_get_try_bool(qdict, "no_coalesce", false);
 363     enum QSPSortBy sort_by;
 364
 365     sort_by = mean ? QSP_SORT_BY_AVG_WAIT_TIME : QSP_SORT_BY_TOTAL_WAIT_TIME;
 366     qsp_report(max, sort_by, coalesce);
 367 }
 368
 369 static void hmp_info_history(Monitor *mon, const QDict *qdict)
 370 {
 371     MonitorHMP *hmp_mon = container_of(mon, MonitorHMP, common);
 372     int i;
 373     const char *str;
 374
 375     if (!hmp_mon->rs) {
 376         return;
 377     }
 378     i = 0;
 379     for(;;) {
 380         str = readline_get_history(hmp_mon->rs, i);
 381         if (!str) {
 382             break;
 383         }
 384         monitor_printf(mon, "%d: '%s'\n", i, str);
 385         i++;
 386     }
 387 }
 388
 389 static void hmp_info_cpustats(Monitor *mon, const QDict *qdict)
 390 {
 391     CPUState *cs = mon_get_cpu();
 392
 393     if (!cs) {
 394         monitor_printf(mon, "No CPU available\n");
 395         return;
 396     }
 397     cpu_dump_statistics(cs, 0);
 398 }
 399
 400 static void hmp_info_trace_events(Monitor *mon, const QDict *qdict)
 401 {
 402     const char *name = qdict_get_try_str(qdict, "name");
 403     bool has_vcpu = qdict_haskey(qdict, "vcpu");
 404     int vcpu = qdict_get_try_int(qdict, "vcpu", 0);
 405     TraceEventInfoList *events;
 406     TraceEventInfoList *elem;
 407     Error *local_err = NULL;
 408
 409     if (name == NULL) {
 410         name = "*";
 411     }
 412     if (vcpu < 0) {
 413         monitor_printf(mon, "argument vcpu must be positive");
 414         return;
 415     }
 416
 417     events = qmp_trace_event_get_state(name, has_vcpu, vcpu, &local_err);
 418     if (local_err) {
 419         error_report_err(local_err);
 420         return;
 421     }
 422
 423     for (elem = events; elem != NULL; elem = elem->next) {
 424         monitor_printf(mon, "%s : state %u\n",
 425                        elem->value->name,
 426                        elem->value->state == TRACE_EVENT_STATE_ENABLED ? 1 : 0);
 427     }
 428     qapi_free_TraceEventInfoList(events);
 429 }
 430
 431 void qmp_client_migrate_info(const char *protocol, const char *hostname,
 432                              bool has_port, int64_t port,
 433                              bool has_tls_port, int64_t tls_port,
 434                              bool has_cert_subject, const char *cert_subject,
 435                              Error **errp)
 436 {
 437     if (strcmp(protocol, "spice") == 0) {
 438         if (!qemu_using_spice(errp)) {
 439             return;
 440         }
 441
 442         if (!has_port && !has_tls_port) {
 443             error_setg(errp, QERR_MISSING_PARAMETER, "port/tls-port");
 444             return;
 445         }
 446
 447         if (qemu_spice_migrate_info(hostname,
 448                                     has_port ? port : -1,
 449                                     has_tls_port ? tls_port : -1,
 450                                     cert_subject)) {
 451             error_setg(errp, QERR_UNDEFINED_ERROR);
 452             return;
 453         }
 454         return;
 455     }
 456
 457     error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "protocol", "spice");
 458 }
 459
 460 static void hmp_logfile(Monitor *mon, const QDict *qdict)
 461 {
 462     Error *err = NULL;
 463
 464     qemu_set_log_filename(qdict_get_str(qdict, "filename"), &err);
 465     if (err) {
 466         error_report_err(err);
 467     }
 468 }
 469
 470 static void hmp_log(Monitor *mon, const QDict *qdict)
 471 {
 472     int mask;
 473     const char *items = qdict_get_str(qdict, "items");
 474
 475     if (!strcmp(items, "none")) {
 476         mask = 0;
 477     } else {
 478         mask = qemu_str_to_log_mask(items);
 479         if (!mask) {
 480             help_cmd(mon, "log");
 481             return;
 482         }
 483     }
 484     qemu_set_log(mask);
 485 }
 486
 487 static void hmp_singlestep(Monitor *mon, const QDict *qdict)
 488 {
 489     const char *option = qdict_get_try_str(qdict, "option");
 490     if (!option || !strcmp(option, "on")) {
 491         singlestep = 1;
 492     } else if (!strcmp(option, "off")) {
 493         singlestep = 0;
 494     } else {
 495         monitor_printf(mon, "unexpected option %s\n", option);
 496     }
 497 }
 498
 499 static void hmp_gdbserver(Monitor *mon, const QDict *qdict)
 500 {
 501     const char *device = qdict_get_try_str(qdict, "device");
 502     if (!device)
 503         device = "tcp::" DEFAULT_GDBSTUB_PORT;
 504     if (gdbserver_start(device) < 0) {
 505         monitor_printf(mon, "Could not open gdbserver on device '%s'\n",
 506                        device);
 507     } else if (strcmp(device, "none") == 0) {
 508         monitor_printf(mon, "Disabled gdbserver\n");
 509     } else {
 510         monitor_printf(mon, "Waiting for gdb connection on device '%s'\n",
 511                        device);
 512     }
 513 }
 514
 515 static void hmp_watchdog_action(Monitor *mon, const QDict *qdict)
 516 {
 517     const char *action = qdict_get_str(qdict, "action");
 518     if (select_watchdog_action(action) == -1) {
 519         monitor_printf(mon, "Unknown watchdog action '%s'\n", action);
 520     }
 521 }
 522
 523 static void monitor_printc(Monitor *mon, int c)
 524 {
 525     monitor_printf(mon, "'");
 526     switch(c) {
 527     case '\'':
 528         monitor_printf(mon, "\\'");
 529         break;
 530     case '\\':
 531         monitor_printf(mon, "\\\\");
 532         break;
 533     case '\n':
 534         monitor_printf(mon, "\\n");
 535         break;
 536     case '\r':
 537         monitor_printf(mon, "\\r");
 538         break;
 539     default:
 540         if (c >= 32 && c <= 126) {
 541             monitor_printf(mon, "%c", c);
 542         } else {
 543             monitor_printf(mon, "\\x%02x", c);
 544         }
 545         break;
 546     }
 547     monitor_printf(mon, "'");
 548 }
 549
 550 static void memory_dump(Monitor *mon, int count, int format, int wsize,
 551                         hwaddr addr, int is_physical)
 552 {
 553     int l, line_size, i, max_digits, len;
 554     uint8_t buf[16];
 555     uint64_t v;
 556     CPUState *cs = mon_get_cpu();
 557
 558     if (!cs && (format == 'i' || !is_physical)) {
 559         monitor_printf(mon, "Can not dump without CPU\n");
 560         return;
 561     }
 562
 563     if (format == 'i') {
 564         monitor_disas(mon, cs, addr, count, is_physical);
 565         return;
 566     }
 567
 568     len = wsize * count;
 569     if (wsize == 1)
 570         line_size = 8;
 571     else
 572         line_size = 16;
 573     max_digits = 0;
 574
 575     switch(format) {
 576     case 'o':
 577         max_digits = DIV_ROUND_UP(wsize * 8, 3);
 578         break;
 579     default:
 580     case 'x':
 581         max_digits = (wsize * 8) / 4;
 582         break;
 583     case 'u':
 584     case 'd':
 585         max_digits = DIV_ROUND_UP(wsize * 8 * 10, 33);
 586         break;
 587     case 'c':
 588         wsize = 1;
 589         break;
 590     }
 591
 592     while (len > 0) {
 593         if (is_physical)
 594             monitor_printf(mon, TARGET_FMT_plx ":", addr);
 595         else
 596             monitor_printf(mon, TARGET_FMT_lx ":", (target_ulong)addr);
 597         l = len;
 598         if (l > line_size)
 599             l = line_size;
 600         if (is_physical) {
 601             AddressSpace *as = cs ? cs->as : &address_space_memory;
 602             MemTxResult r = address_space_read(as, addr,
 603                                                MEMTXATTRS_UNSPECIFIED, buf, l);
 604             if (r != MEMTX_OK) {
 605                 monitor_printf(mon, " Cannot access memory\n");
 606                 break;
 607             }
 608         } else {
 609             if (cpu_memory_rw_debug(cs, addr, buf, l, 0) < 0) {
 610                 monitor_printf(mon, " Cannot access memory\n");
 611                 break;
 612             }
 613         }
 614         i = 0;
 615         while (i < l) {
 616             switch(wsize) {
 617             default:
 618             case 1:
 619                 v = ldub_p(buf + i);
 620                 break;
 621             case 2:
 622                 v = lduw_p(buf + i);
 623                 break;
 624             case 4:
 625                 v = (uint32_t)ldl_p(buf + i);
 626                 break;
 627             case 8:
 628                 v = ldq_p(buf + i);
 629                 break;
 630             }
 631             monitor_printf(mon, " ");
 632             switch(format) {
 633             case 'o':
 634                 monitor_printf(mon, "%#*" PRIo64, max_digits, v);
 635                 break;
 636             case 'x':
 637                 monitor_printf(mon, "0x%0*" PRIx64, max_digits, v);
 638                 break;
 639             case 'u':
 640                 monitor_printf(mon, "%*" PRIu64, max_digits, v);
 641                 break;
 642             case 'd':
 643                 monitor_printf(mon, "%*" PRId64, max_digits, v);
 644                 break;
 645             case 'c':
 646                 monitor_printc(mon, v);
 647                 break;
 648             }
 649             i += wsize;
 650         }
 651         monitor_printf(mon, "\n");
 652         addr += l;
 653         len -= l;
 654     }
 655 }
 656
 657 static void hmp_memory_dump(Monitor *mon, const QDict *qdict)
 658 {
 659     int count = qdict_get_int(qdict, "count");
 660     int format = qdict_get_int(qdict, "format");
 661     int size = qdict_get_int(qdict, "size");
 662     target_long addr = qdict_get_int(qdict, "addr");
 663
 664     memory_dump(mon, count, format, size, addr, 0);
 665 }
 666
 667 static void hmp_physical_memory_dump(Monitor *mon, const QDict *qdict)
 668 {
 669     int count = qdict_get_int(qdict, "count");
 670     int format = qdict_get_int(qdict, "format");
 671     int size = qdict_get_int(qdict, "size");
 672     hwaddr addr = qdict_get_int(qdict, "addr");
 673
 674     memory_dump(mon, count, format, size, addr, 1);
 675 }
 676
 677 static void *gpa2hva(MemoryRegion **p_mr, hwaddr addr, Error **errp)
 678 {
 679     MemoryRegionSection mrs = memory_region_find(get_system_memory(),
 680                                                  addr, 1);
 681
 682     if (!mrs.mr) {
 683         error_setg(errp, "No memory is mapped at address 0x%" HWADDR_PRIx, addr);
 684         return NULL;
 685     }
 686
 687     if (!memory_region_is_ram(mrs.mr) && !memory_region_is_romd(mrs.mr)) {
 688         error_setg(errp, "Memory at address 0x%" HWADDR_PRIx "is not RAM", addr);
 689         memory_region_unref(mrs.mr);
 690         return NULL;
 691     }
 692
 693     *p_mr = mrs.mr;
 694     return qemu_map_ram_ptr(mrs.mr->ram_block, mrs.offset_within_region);
 695 }
 696
 697 static void hmp_gpa2hva(Monitor *mon, const QDict *qdict)
 698 {
 699     hwaddr addr = qdict_get_int(qdict, "addr");
 700     Error *local_err = NULL;
 701     MemoryRegion *mr = NULL;
 702     void *ptr;
 703
 704     ptr = gpa2hva(&mr, addr, &local_err);
 705     if (local_err) {
 706         error_report_err(local_err);
 707         return;
 708     }
 709
 710     monitor_printf(mon, "Host virtual address for 0x%" HWADDR_PRIx
 711                    " (%s) is %p\n",
 712                    addr, mr->name, ptr);
 713
 714     memory_region_unref(mr);
 715 }
 716
 717 static void hmp_gva2gpa(Monitor *mon, const QDict *qdict)
 718 {
 719     target_ulong addr = qdict_get_int(qdict, "addr");
 720     MemTxAttrs attrs;
 721     CPUState *cs = mon_get_cpu();
 722     hwaddr gpa;
 723
 724     if (!cs) {
 725         monitor_printf(mon, "No cpu\n");
 726         return;
 727     }
 728
 729     gpa  = cpu_get_phys_page_attrs_debug(cs, addr & TARGET_PAGE_MASK, &attrs);
 730     if (gpa == -1) {
 731         monitor_printf(mon, "Unmapped\n");
 732     } else {
 733         monitor_printf(mon, "gpa: %#" HWADDR_PRIx "\n",
 734                        gpa + (addr & ~TARGET_PAGE_MASK));
 735     }
 736 }
 737
 738 #ifdef CONFIG_LINUX
 739 static uint64_t vtop(void *ptr, Error **errp)
 740 {
 741     uint64_t pinfo;
 742     uint64_t ret = -1;
 743     uintptr_t addr = (uintptr_t) ptr;
 744     uintptr_t pagesize = qemu_real_host_page_size;
 745     off_t offset = addr / pagesize * sizeof(pinfo);
 746     int fd;
 747
 748     fd = open("/proc/self/pagemap", O_RDONLY);
 749     if (fd == -1) {
 750         error_setg_errno(errp, errno, "Cannot open /proc/self/pagemap");
 751         return -1;
 752     }
 753
 754     /* Force copy-on-write if necessary.  */
 755     atomic_add((uint8_t *)ptr, 0);
 756
 757     if (pread(fd, &pinfo, sizeof(pinfo), offset) != sizeof(pinfo)) {
 758         error_setg_errno(errp, errno, "Cannot read pagemap");
 759         goto out;
 760     }
 761     if ((pinfo & (1ull << 63)) == 0) {
 762         error_setg(errp, "Page not present");
 763         goto out;
 764     }
 765     ret = ((pinfo & 0x007fffffffffffffull) * pagesize) | (addr & (pagesize - 1));
 766
 767 out:
 768     close(fd);
 769     return ret;
 770 }
 771
 772 static void hmp_gpa2hpa(Monitor *mon, const QDict *qdict)
 773 {
 774     hwaddr addr = qdict_get_int(qdict, "addr");
 775     Error *local_err = NULL;
 776     MemoryRegion *mr = NULL;
 777     void *ptr;
 778     uint64_t physaddr;
 779
 780     ptr = gpa2hva(&mr, addr, &local_err);
 781     if (local_err) {
 782         error_report_err(local_err);
 783         return;
 784     }
 785
 786     physaddr = vtop(ptr, &local_err);
 787     if (local_err) {
 788         error_report_err(local_err);
 789     } else {
 790         monitor_printf(mon, "Host physical address for 0x%" HWADDR_PRIx
 791                        " (%s) is 0x%" PRIx64 "\n",
 792                        addr, mr->name, (uint64_t) physaddr);
 793     }
 794
 795     memory_region_unref(mr);
 796 }
 797 #endif
 798
 799 static void do_print(Monitor *mon, const QDict *qdict)
 800 {
 801     int format = qdict_get_int(qdict, "format");
 802     hwaddr val = qdict_get_int(qdict, "val");
 803
 804     switch(format) {
 805     case 'o':
 806         monitor_printf(mon, "%#" HWADDR_PRIo, val);
 807         break;
 808     case 'x':
 809         monitor_printf(mon, "%#" HWADDR_PRIx, val);
 810         break;
 811     case 'u':
 812         monitor_printf(mon, "%" HWADDR_PRIu, val);
 813         break;
 814     default:
 815     case 'd':
 816         monitor_printf(mon, "%" HWADDR_PRId, val);
 817         break;
 818     case 'c':
 819         monitor_printc(mon, val);
 820         break;
 821     }
 822     monitor_printf(mon, "\n");
 823 }
 824
 825 static void hmp_sum(Monitor *mon, const QDict *qdict)
 826 {
 827     uint32_t addr;
 828     uint16_t sum;
 829     uint32_t start = qdict_get_int(qdict, "start");
 830     uint32_t size = qdict_get_int(qdict, "size");
 831
 832     sum = 0;
 833     for(addr = start; addr < (start + size); addr++) {
 834         uint8_t val = address_space_ldub(&address_space_memory, addr,
 835                                          MEMTXATTRS_UNSPECIFIED, NULL);
 836         /* BSD sum algorithm ('sum' Unix command) */
 837         sum = (sum >> 1) | (sum << 15);
 838         sum += val;
 839     }
 840     monitor_printf(mon, "%05d\n", sum);
 841 }
 842
 843 static int mouse_button_state;
 844
 845 static void hmp_mouse_move(Monitor *mon, const QDict *qdict)
 846 {
 847     int dx, dy, dz, button;
 848     const char *dx_str = qdict_get_str(qdict, "dx_str");
 849     const char *dy_str = qdict_get_str(qdict, "dy_str");
 850     const char *dz_str = qdict_get_try_str(qdict, "dz_str");
 851
 852     dx = strtol(dx_str, NULL, 0);
 853     dy = strtol(dy_str, NULL, 0);
 854     qemu_input_queue_rel(NULL, INPUT_AXIS_X, dx);
 855     qemu_input_queue_rel(NULL, INPUT_AXIS_Y, dy);
 856
 857     if (dz_str) {
 858         dz = strtol(dz_str, NULL, 0);
 859         if (dz != 0) {
 860             button = (dz > 0) ? INPUT_BUTTON_WHEEL_UP : INPUT_BUTTON_WHEEL_DOWN;
 861             qemu_input_queue_btn(NULL, button, true);
 862             qemu_input_event_sync();
 863             qemu_input_queue_btn(NULL, button, false);
 864         }
 865     }
 866     qemu_input_event_sync();
 867 }
 868
 869 static void hmp_mouse_button(Monitor *mon, const QDict *qdict)
 870 {
 871     static uint32_t bmap[INPUT_BUTTON__MAX] = {
 872         [INPUT_BUTTON_LEFT]       = MOUSE_EVENT_LBUTTON,
 873         [INPUT_BUTTON_MIDDLE]     = MOUSE_EVENT_MBUTTON,
 874         [INPUT_BUTTON_RIGHT]      = MOUSE_EVENT_RBUTTON,
 875     };
 876     int button_state = qdict_get_int(qdict, "button_state");
 877
 878     if (mouse_button_state == button_state) {
 879         return;
 880     }
 881     qemu_input_update_buttons(NULL, bmap, mouse_button_state, button_state);
 882     qemu_input_event_sync();
 883     mouse_button_state = button_state;
 884 }
 885
 886 static void hmp_ioport_read(Monitor *mon, const QDict *qdict)
 887 {
 888     int size = qdict_get_int(qdict, "size");
 889     int addr = qdict_get_int(qdict, "addr");
 890     int has_index = qdict_haskey(qdict, "index");
 891     uint32_t val;
 892     int suffix;
 893
 894     if (has_index) {
 895         int index = qdict_get_int(qdict, "index");
 896         cpu_outb(addr & IOPORTS_MASK, index & 0xff);
 897         addr++;
 898     }
 899     addr &= 0xffff;
 900
 901     switch(size) {
 902     default:
 903     case 1:
 904         val = cpu_inb(addr);
 905         suffix = 'b';
 906         break;
 907     case 2:
 908         val = cpu_inw(addr);
 909         suffix = 'w';
 910         break;
 911     case 4:
 912         val = cpu_inl(addr);
 913         suffix = 'l';
 914         break;
 915     }
 916     monitor_printf(mon, "port%c[0x%04x] = %#0*x\n",
 917                    suffix, addr, size * 2, val);
 918 }
 919
 920 static void hmp_ioport_write(Monitor *mon, const QDict *qdict)
 921 {
 922     int size = qdict_get_int(qdict, "size");
 923     int addr = qdict_get_int(qdict, "addr");
 924     int val = qdict_get_int(qdict, "val");
 925
 926     addr &= IOPORTS_MASK;
 927
 928     switch (size) {
 929     default:
 930     case 1:
 931         cpu_outb(addr, val);
 932         break;
 933     case 2:
 934         cpu_outw(addr, val);
 935         break;
 936     case 4:
 937         cpu_outl(addr, val);
 938         break;
 939     }
 940 }
 941
 942 static void hmp_boot_set(Monitor *mon, const QDict *qdict)
 943 {
 944     Error *local_err = NULL;
 945     const char *bootdevice = qdict_get_str(qdict, "bootdevice");
 946
 947     qemu_boot_set(bootdevice, &local_err);
 948     if (local_err) {
 949         error_report_err(local_err);
 950     } else {
 951         monitor_printf(mon, "boot device list now set to %s\n", bootdevice);
 952     }
 953 }
 954
 955 static void hmp_info_mtree(Monitor *mon, const QDict *qdict)
 956 {
 957     bool flatview = qdict_get_try_bool(qdict, "flatview", false);
 958     bool dispatch_tree = qdict_get_try_bool(qdict, "dispatch_tree", false);
 959     bool owner = qdict_get_try_bool(qdict, "owner", false);
 960     bool disabled = qdict_get_try_bool(qdict, "disabled", false);
 961
 962     mtree_info(flatview, dispatch_tree, owner, disabled);
 963 }
 964
 965 #ifdef CONFIG_PROFILER
 966
 967 int64_t dev_time;
 968
 969 static void hmp_info_profile(Monitor *mon, const QDict *qdict)
 970 {
 971     static int64_t last_cpu_exec_time;
 972     int64_t cpu_exec_time;
 973     int64_t delta;
 974
 975     cpu_exec_time = tcg_cpu_exec_time();
 976     delta = cpu_exec_time - last_cpu_exec_time;
 977
 978     monitor_printf(mon, "async time  %" PRId64 " (%0.3f)\n",
 979                    dev_time, dev_time / (double)NANOSECONDS_PER_SECOND);
 980     monitor_printf(mon, "qemu time   %" PRId64 " (%0.3f)\n",
 981                    delta, delta / (double)NANOSECONDS_PER_SECOND);
 982     last_cpu_exec_time = cpu_exec_time;
 983     dev_time = 0;
 984 }
 985 #else
 986 static void hmp_info_profile(Monitor *mon, const QDict *qdict)
 987 {
 988     monitor_printf(mon, "Internal profiler not compiled\n");
 989 }
 990 #endif
 991
 992 /* Capture support */
 993 static QLIST_HEAD (capture_list_head, CaptureState) capture_head;
 994
 995 static void hmp_info_capture(Monitor *mon, const QDict *qdict)
 996 {
 997     int i;
 998     CaptureState *s;
 999
1000     for (s = capture_head.lh_first, i = 0; s; s = s->entries.le_next, ++i) {
1001         monitor_printf(mon, "[%d]: ", i);
1002         s->ops.info (s->opaque);
1003     }
1004 }
1005
1006 static void hmp_stopcapture(Monitor *mon, const QDict *qdict)
1007 {
1008     int i;
1009     int n = qdict_get_int(qdict, "n");
1010     CaptureState *s;
1011
1012     for (s = capture_head.lh_first, i = 0; s; s = s->entries.le_next, ++i) {
1013         if (i == n) {
1014             s->ops.destroy (s->opaque);
1015             QLIST_REMOVE (s, entries);
1016             g_free (s);
1017             return;
1018         }
1019     }
1020 }
1021
1022 static void hmp_wavcapture(Monitor *mon, const QDict *qdict)
1023 {
1024     const char *path = qdict_get_str(qdict, "path");
1025     int freq = qdict_get_try_int(qdict, "freq", 44100);
1026     int bits = qdict_get_try_int(qdict, "bits", 16);
1027     int nchannels = qdict_get_try_int(qdict, "nchannels", 2);
1028     const char *audiodev = qdict_get_str(qdict, "audiodev");
1029     CaptureState *s;
1030     AudioState *as = audio_state_by_name(audiodev);
1031
1032     if (!as) {
1033         monitor_printf(mon, "Audiodev '%s' not found\n", audiodev);
1034         return;
1035     }
1036
1037     s = g_malloc0 (sizeof (*s));
1038
1039     if (wav_start_capture(as, s, path, freq, bits, nchannels)) {
1040         monitor_printf(mon, "Failed to add wave capture\n");
1041         g_free (s);
1042         return;
1043     }
1044     QLIST_INSERT_HEAD (&capture_head, s, entries);
1045 }
1046
1047 static QAuthZList *find_auth(Monitor *mon, const char *name)
1048 {
1049     Object *obj;
1050     Object *container;
1051
1052     container = object_get_objects_root();
1053     obj = object_resolve_path_component(container, name);
1054     if (!obj) {
1055         monitor_printf(mon, "acl: unknown list '%s'\n", name);
1056         return NULL;
1057     }
1058
1059     return QAUTHZ_LIST(obj);
1060 }
1061
1062 static bool warn_acl;
1063 static void hmp_warn_acl(void)
1064 {
1065     if (warn_acl) {
1066         return;
1067     }
1068     error_report("The acl_show, acl_reset, acl_policy, acl_add, acl_remove "
1069                  "commands are deprecated with no replacement. Authorization "
1070                  "for VNC should be performed using the pluggable QAuthZ "
1071                  "objects");
1072     warn_acl = true;
1073 }
1074
1075 static void hmp_acl_show(Monitor *mon, const QDict *qdict)
1076 {
1077     const char *aclname = qdict_get_str(qdict, "aclname");
1078     QAuthZList *auth = find_auth(mon, aclname);
1079     QAuthZListRuleList *rules;
1080     size_t i = 0;
1081
1082     hmp_warn_acl();
1083
1084     if (!auth) {
1085         return;
1086     }
1087
1088     monitor_printf(mon, "policy: %s\n",
1089                    QAuthZListPolicy_str(auth->policy));
1090
1091     rules = auth->rules;
1092     while (rules) {
1093         QAuthZListRule *rule = rules->value;
1094         i++;
1095         monitor_printf(mon, "%zu: %s %s\n", i,
1096                        QAuthZListPolicy_str(rule->policy),
1097                        rule->match);
1098         rules = rules->next;
1099     }
1100 }
1101
1102 static void hmp_acl_reset(Monitor *mon, const QDict *qdict)
1103 {
1104     const char *aclname = qdict_get_str(qdict, "aclname");
1105     QAuthZList *auth = find_auth(mon, aclname);
1106
1107     hmp_warn_acl();
1108
1109     if (!auth) {
1110         return;
1111     }
1112
1113     auth->policy = QAUTHZ_LIST_POLICY_DENY;
1114     qapi_free_QAuthZListRuleList(auth->rules);
1115     auth->rules = NULL;
1116     monitor_printf(mon, "acl: removed all rules\n");
1117 }
1118
1119 static void hmp_acl_policy(Monitor *mon, const QDict *qdict)
1120 {
1121     const char *aclname = qdict_get_str(qdict, "aclname");
1122     const char *policy = qdict_get_str(qdict, "policy");
1123     QAuthZList *auth = find_auth(mon, aclname);
1124     int val;
1125     Error *err = NULL;
1126
1127     hmp_warn_acl();
1128
1129     if (!auth) {
1130         return;
1131     }
1132
1133     val = qapi_enum_parse(&QAuthZListPolicy_lookup,
1134                           policy,
1135                           QAUTHZ_LIST_POLICY_DENY,
1136                           &err);
1137     if (err) {
1138         error_free(err);
1139         monitor_printf(mon, "acl: unknown policy '%s', "
1140                        "expected 'deny' or 'allow'\n", policy);
1141     } else {
1142         auth->policy = val;
1143         if (auth->policy == QAUTHZ_LIST_POLICY_ALLOW) {
1144             monitor_printf(mon, "acl: policy set to 'allow'\n");
1145         } else {
1146             monitor_printf(mon, "acl: policy set to 'deny'\n");
1147         }
1148     }
1149 }
1150
1151 static QAuthZListFormat hmp_acl_get_format(const char *match)
1152 {
1153     if (strchr(match, '*')) {
1154         return QAUTHZ_LIST_FORMAT_GLOB;
1155     } else {
1156         return QAUTHZ_LIST_FORMAT_EXACT;
1157     }
1158 }
1159
1160 static void hmp_acl_add(Monitor *mon, const QDict *qdict)
1161 {
1162     const char *aclname = qdict_get_str(qdict, "aclname");
1163     const char *match = qdict_get_str(qdict, "match");
1164     const char *policystr = qdict_get_str(qdict, "policy");
1165     int has_index = qdict_haskey(qdict, "index");
1166     int index = qdict_get_try_int(qdict, "index", -1);
1167     QAuthZList *auth = find_auth(mon, aclname);
1168     Error *err = NULL;
1169     QAuthZListPolicy policy;
1170     QAuthZListFormat format;
1171     size_t i = 0;
1172
1173     hmp_warn_acl();
1174
1175     if (!auth) {
1176         return;
1177     }
1178
1179     policy = qapi_enum_parse(&QAuthZListPolicy_lookup,
1180                              policystr,
1181                              QAUTHZ_LIST_POLICY_DENY,
1182                              &err);
1183     if (err) {
1184         error_free(err);
1185         monitor_printf(mon, "acl: unknown policy '%s', "
1186                        "expected 'deny' or 'allow'\n", policystr);
1187         return;
1188     }
1189
1190     format = hmp_acl_get_format(match);
1191
1192     if (has_index && index == 0) {
1193         monitor_printf(mon, "acl: unable to add acl entry\n");
1194         return;
1195     }
1196
1197     if (has_index) {
1198         i = qauthz_list_insert_rule(auth, match, policy,
1199                                     format, index - 1, &err);
1200     } else {
1201         i = qauthz_list_append_rule(auth, match, policy,
1202                                     format, &err);
1203     }
1204     if (err) {
1205         monitor_printf(mon, "acl: unable to add rule: %s",
1206                        error_get_pretty(err));
1207         error_free(err);
1208     } else {
1209         monitor_printf(mon, "acl: added rule at position %zu\n", i + 1);
1210     }
1211 }
1212
1213 static void hmp_acl_remove(Monitor *mon, const QDict *qdict)
1214 {
1215     const char *aclname = qdict_get_str(qdict, "aclname");
1216     const char *match = qdict_get_str(qdict, "match");
1217     QAuthZList *auth = find_auth(mon, aclname);
1218     ssize_t i = 0;
1219
1220     hmp_warn_acl();
1221
1222     if (!auth) {
1223         return;
1224     }
1225
1226     i = qauthz_list_delete_rule(auth, match);
1227     if (i >= 0) {
1228         monitor_printf(mon, "acl: removed rule at position %zu\n", i + 1);
1229     } else {
1230         monitor_printf(mon, "acl: no matching acl entry\n");
1231     }
1232 }
1233
1234 void qmp_getfd(const char *fdname, Error **errp)
1235 {
1236     mon_fd_t *monfd;
1237     int fd, tmp_fd;
1238
1239     fd = qemu_chr_fe_get_msgfd(&cur_mon->chr);
1240     if (fd == -1) {
1241         error_setg(errp, QERR_FD_NOT_SUPPLIED);
1242         return;
1243     }
1244
1245     if (qemu_isdigit(fdname[0])) {
1246         close(fd);
1247         error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "fdname",
1248                    "a name not starting with a digit");
1249         return;
1250     }
1251
1252     qemu_mutex_lock(&cur_mon->mon_lock);
1253     QLIST_FOREACH(monfd, &cur_mon->fds, next) {
1254         if (strcmp(monfd->name, fdname) != 0) {
1255             continue;
1256         }
1257
1258         tmp_fd = monfd->fd;
1259         monfd->fd = fd;
1260         qemu_mutex_unlock(&cur_mon->mon_lock);
1261         /* Make sure close() is outside critical section */
1262         close(tmp_fd);
1263         return;
1264     }
1265
1266     monfd = g_malloc0(sizeof(mon_fd_t));
1267     monfd->name = g_strdup(fdname);
1268     monfd->fd = fd;
1269
1270     QLIST_INSERT_HEAD(&cur_mon->fds, monfd, next);
1271     qemu_mutex_unlock(&cur_mon->mon_lock);
1272 }
1273
1274 void qmp_closefd(const char *fdname, Error **errp)
1275 {
1276     mon_fd_t *monfd;
1277     int tmp_fd;
1278
1279     qemu_mutex_lock(&cur_mon->mon_lock);
1280     QLIST_FOREACH(monfd, &cur_mon->fds, next) {
1281         if (strcmp(monfd->name, fdname) != 0) {
1282             continue;
1283         }
1284
1285         QLIST_REMOVE(monfd, next);
1286         tmp_fd = monfd->fd;
1287         g_free(monfd->name);
1288         g_free(monfd);
1289         qemu_mutex_unlock(&cur_mon->mon_lock);
1290         /* Make sure close() is outside critical section */
1291         close(tmp_fd);
1292         return;
1293     }
1294
1295     qemu_mutex_unlock(&cur_mon->mon_lock);
1296     error_setg(errp, QERR_FD_NOT_FOUND, fdname);
1297 }
1298
1299 int monitor_get_fd(Monitor *mon, const char *fdname, Error **errp)
1300 {
1301     mon_fd_t *monfd;
1302
1303     qemu_mutex_lock(&mon->mon_lock);
1304     QLIST_FOREACH(monfd, &mon->fds, next) {
1305         int fd;
1306
1307         if (strcmp(monfd->name, fdname) != 0) {
1308             continue;
1309         }
1310
1311         fd = monfd->fd;
1312
1313         /* caller takes ownership of fd */
1314         QLIST_REMOVE(monfd, next);
1315         g_free(monfd->name);
1316         g_free(monfd);
1317         qemu_mutex_unlock(&mon->mon_lock);
1318
1319         return fd;
1320     }
1321
1322     qemu_mutex_unlock(&mon->mon_lock);
1323     error_setg(errp, "File descriptor named '%s' has not been found", fdname);
1324     return -1;
1325 }
1326
1327 static void monitor_fdset_cleanup(MonFdset *mon_fdset)
1328 {
1329     MonFdsetFd *mon_fdset_fd;
1330     MonFdsetFd *mon_fdset_fd_next;
1331
1332     QLIST_FOREACH_SAFE(mon_fdset_fd, &mon_fdset->fds, next, mon_fdset_fd_next) {
1333         if ((mon_fdset_fd->removed ||
1334                 (QLIST_EMPTY(&mon_fdset->dup_fds) && mon_refcount == 0)) &&
1335                 runstate_is_running()) {
1336             close(mon_fdset_fd->fd);
1337             g_free(mon_fdset_fd->opaque);
1338             QLIST_REMOVE(mon_fdset_fd, next);
1339             g_free(mon_fdset_fd);
1340         }
1341     }
1342
1343     if (QLIST_EMPTY(&mon_fdset->fds) && QLIST_EMPTY(&mon_fdset->dup_fds)) {
1344         QLIST_REMOVE(mon_fdset, next);
1345         g_free(mon_fdset);
1346     }
1347 }
1348
1349 void monitor_fdsets_cleanup(void)
1350 {
1351     MonFdset *mon_fdset;
1352     MonFdset *mon_fdset_next;
1353
1354     qemu_mutex_lock(&mon_fdsets_lock);
1355     QLIST_FOREACH_SAFE(mon_fdset, &mon_fdsets, next, mon_fdset_next) {
1356         monitor_fdset_cleanup(mon_fdset);
1357     }
1358     qemu_mutex_unlock(&mon_fdsets_lock);
1359 }
1360
1361 AddfdInfo *qmp_add_fd(bool has_fdset_id, int64_t fdset_id, bool has_opaque,
1362                       const char *opaque, Error **errp)
1363 {
1364     int fd;
1365     Monitor *mon = cur_mon;
1366     AddfdInfo *fdinfo;
1367
1368     fd = qemu_chr_fe_get_msgfd(&mon->chr);
1369     if (fd == -1) {
1370         error_setg(errp, QERR_FD_NOT_SUPPLIED);
1371         goto error;
1372     }
1373
1374     fdinfo = monitor_fdset_add_fd(fd, has_fdset_id, fdset_id,
1375                                   has_opaque, opaque, errp);
1376     if (fdinfo) {
1377         return fdinfo;
1378     }
1379
1380 error:
1381     if (fd != -1) {
1382         close(fd);
1383     }
1384     return NULL;
1385 }
1386
1387 void qmp_remove_fd(int64_t fdset_id, bool has_fd, int64_t fd, Error **errp)
1388 {
1389     MonFdset *mon_fdset;
1390     MonFdsetFd *mon_fdset_fd;
1391     char fd_str[60];
1392
1393     qemu_mutex_lock(&mon_fdsets_lock);
1394     QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
1395         if (mon_fdset->id != fdset_id) {
1396             continue;
1397         }
1398         QLIST_FOREACH(mon_fdset_fd, &mon_fdset->fds, next) {
1399             if (has_fd) {
1400                 if (mon_fdset_fd->fd != fd) {
1401                     continue;
1402                 }
1403                 mon_fdset_fd->removed = true;
1404                 break;
1405             } else {
1406                 mon_fdset_fd->removed = true;
1407             }
1408         }
1409         if (has_fd && !mon_fdset_fd) {
1410             goto error;
1411         }
1412         monitor_fdset_cleanup(mon_fdset);
1413         qemu_mutex_unlock(&mon_fdsets_lock);
1414         return;
1415     }
1416
1417 error:
1418     qemu_mutex_unlock(&mon_fdsets_lock);
1419     if (has_fd) {
1420         snprintf(fd_str, sizeof(fd_str), "fdset-id:%" PRId64 ", fd:%" PRId64,
1421                  fdset_id, fd);
1422     } else {
1423         snprintf(fd_str, sizeof(fd_str), "fdset-id:%" PRId64, fdset_id);
1424     }
1425     error_setg(errp, QERR_FD_NOT_FOUND, fd_str);
1426 }
1427
1428 FdsetInfoList *qmp_query_fdsets(Error **errp)
1429 {
1430     MonFdset *mon_fdset;
1431     MonFdsetFd *mon_fdset_fd;
1432     FdsetInfoList *fdset_list = NULL;
1433
1434     qemu_mutex_lock(&mon_fdsets_lock);
1435     QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
1436         FdsetInfoList *fdset_info = g_malloc0(sizeof(*fdset_info));
1437         FdsetFdInfoList *fdsetfd_list = NULL;
1438
1439         fdset_info->value = g_malloc0(sizeof(*fdset_info->value));
1440         fdset_info->value->fdset_id = mon_fdset->id;
1441
1442         QLIST_FOREACH(mon_fdset_fd, &mon_fdset->fds, next) {
1443             FdsetFdInfoList *fdsetfd_info;
1444
1445             fdsetfd_info = g_malloc0(sizeof(*fdsetfd_info));
1446             fdsetfd_info->value = g_malloc0(sizeof(*fdsetfd_info->value));
1447             fdsetfd_info->value->fd = mon_fdset_fd->fd;
1448             if (mon_fdset_fd->opaque) {
1449                 fdsetfd_info->value->has_opaque = true;
1450                 fdsetfd_info->value->opaque = g_strdup(mon_fdset_fd->opaque);
1451             } else {
1452                 fdsetfd_info->value->has_opaque = false;
1453             }
1454
1455             fdsetfd_info->next = fdsetfd_list;
1456             fdsetfd_list = fdsetfd_info;
1457         }
1458
1459         fdset_info->value->fds = fdsetfd_list;
1460
1461         fdset_info->next = fdset_list;
1462         fdset_list = fdset_info;
1463     }
1464     qemu_mutex_unlock(&mon_fdsets_lock);
1465
1466     return fdset_list;
1467 }
1468
1469 AddfdInfo *monitor_fdset_add_fd(int fd, bool has_fdset_id, int64_t fdset_id,
1470                                 bool has_opaque, const char *opaque,
1471                                 Error **errp)
1472 {
1473     MonFdset *mon_fdset = NULL;
1474     MonFdsetFd *mon_fdset_fd;
1475     AddfdInfo *fdinfo;
1476
1477     QEMU_LOCK_GUARD(&mon_fdsets_lock);
1478     if (has_fdset_id) {
1479         QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
1480             /* Break if match found or match impossible due to ordering by ID */
1481             if (fdset_id <= mon_fdset->id) {
1482                 if (fdset_id < mon_fdset->id) {
1483                     mon_fdset = NULL;
1484                 }
1485                 break;
1486             }
1487         }
1488     }
1489
1490     if (mon_fdset == NULL) {
1491         int64_t fdset_id_prev = -1;
1492         MonFdset *mon_fdset_cur = QLIST_FIRST(&mon_fdsets);
1493
1494         if (has_fdset_id) {
1495             if (fdset_id < 0) {
1496                 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "fdset-id",
1497                            "a non-negative value");
1498                 return NULL;
1499             }
1500             /* Use specified fdset ID */
1501             QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
1502                 mon_fdset_cur = mon_fdset;
1503                 if (fdset_id < mon_fdset_cur->id) {
1504                     break;
1505                 }
1506             }
1507         } else {
1508             /* Use first available fdset ID */
1509             QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
1510                 mon_fdset_cur = mon_fdset;
1511                 if (fdset_id_prev == mon_fdset_cur->id - 1) {
1512                     fdset_id_prev = mon_fdset_cur->id;
1513                     continue;
1514                 }
1515                 break;
1516             }
1517         }
1518
1519         mon_fdset = g_malloc0(sizeof(*mon_fdset));
1520         if (has_fdset_id) {
1521             mon_fdset->id = fdset_id;
1522         } else {
1523             mon_fdset->id = fdset_id_prev + 1;
1524         }
1525
1526         /* The fdset list is ordered by fdset ID */
1527         if (!mon_fdset_cur) {
1528             QLIST_INSERT_HEAD(&mon_fdsets, mon_fdset, next);
1529         } else if (mon_fdset->id < mon_fdset_cur->id) {
1530             QLIST_INSERT_BEFORE(mon_fdset_cur, mon_fdset, next);
1531         } else {
1532             QLIST_INSERT_AFTER(mon_fdset_cur, mon_fdset, next);
1533         }
1534     }
1535
1536     mon_fdset_fd = g_malloc0(sizeof(*mon_fdset_fd));
1537     mon_fdset_fd->fd = fd;
1538     mon_fdset_fd->removed = false;
1539     if (has_opaque) {
1540         mon_fdset_fd->opaque = g_strdup(opaque);
1541     }
1542     QLIST_INSERT_HEAD(&mon_fdset->fds, mon_fdset_fd, next);
1543
1544     fdinfo = g_malloc0(sizeof(*fdinfo));
1545     fdinfo->fdset_id = mon_fdset->id;
1546     fdinfo->fd = mon_fdset_fd->fd;
1547
1548     return fdinfo;
1549 }
1550
1551 int monitor_fdset_get_fd(int64_t fdset_id, int flags)
1552 {
1553 #ifdef _WIN32
1554     return -ENOENT;
1555 #else
1556     MonFdset *mon_fdset;
1557     MonFdsetFd *mon_fdset_fd;
1558     int mon_fd_flags;
1559     int ret;
1560
1561     qemu_mutex_lock(&mon_fdsets_lock);
1562     QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
1563         if (mon_fdset->id != fdset_id) {
1564             continue;
1565         }
1566         QLIST_FOREACH(mon_fdset_fd, &mon_fdset->fds, next) {
1567             mon_fd_flags = fcntl(mon_fdset_fd->fd, F_GETFL);
1568             if (mon_fd_flags == -1) {
1569                 ret = -errno;
1570                 goto out;
1571             }
1572
1573             if ((flags & O_ACCMODE) == (mon_fd_flags & O_ACCMODE)) {
1574                 ret = mon_fdset_fd->fd;
1575                 goto out;
1576             }
1577         }
1578         ret = -EACCES;
1579         goto out;
1580     }
1581     ret = -ENOENT;
1582
1583 out:
1584     qemu_mutex_unlock(&mon_fdsets_lock);
1585     return ret;
1586 #endif
1587 }
1588
1589 int monitor_fdset_dup_fd_add(int64_t fdset_id, int dup_fd)
1590 {
1591     MonFdset *mon_fdset;
1592     MonFdsetFd *mon_fdset_fd_dup;
1593
1594     qemu_mutex_lock(&mon_fdsets_lock);
1595     QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
1596         if (mon_fdset->id != fdset_id) {
1597             continue;
1598         }
1599         QLIST_FOREACH(mon_fdset_fd_dup, &mon_fdset->dup_fds, next) {
1600             if (mon_fdset_fd_dup->fd == dup_fd) {
1601                 goto err;
1602             }
1603         }
1604         mon_fdset_fd_dup = g_malloc0(sizeof(*mon_fdset_fd_dup));
1605         mon_fdset_fd_dup->fd = dup_fd;
1606         QLIST_INSERT_HEAD(&mon_fdset->dup_fds, mon_fdset_fd_dup, next);
1607         qemu_mutex_unlock(&mon_fdsets_lock);
1608         return 0;
1609     }
1610
1611 err:
1612     qemu_mutex_unlock(&mon_fdsets_lock);
1613     return -1;
1614 }
1615
1616 static int64_t monitor_fdset_dup_fd_find_remove(int dup_fd, bool remove)
1617 {
1618     MonFdset *mon_fdset;
1619     MonFdsetFd *mon_fdset_fd_dup;
1620
1621     qemu_mutex_lock(&mon_fdsets_lock);
1622     QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
1623         QLIST_FOREACH(mon_fdset_fd_dup, &mon_fdset->dup_fds, next) {
1624             if (mon_fdset_fd_dup->fd == dup_fd) {
1625                 if (remove) {
1626                     QLIST_REMOVE(mon_fdset_fd_dup, next);
1627                     g_free(mon_fdset_fd_dup);
1628                     if (QLIST_EMPTY(&mon_fdset->dup_fds)) {
1629                         monitor_fdset_cleanup(mon_fdset);
1630                     }
1631                     goto err;
1632                 } else {
1633                     qemu_mutex_unlock(&mon_fdsets_lock);
1634                     return mon_fdset->id;
1635                 }
1636             }
1637         }
1638     }
1639
1640 err:
1641     qemu_mutex_unlock(&mon_fdsets_lock);
1642     return -1;
1643 }
1644
1645 int64_t monitor_fdset_dup_fd_find(int dup_fd)
1646 {
1647     return monitor_fdset_dup_fd_find_remove(dup_fd, false);
1648 }
1649
1650 void monitor_fdset_dup_fd_remove(int dup_fd)
1651 {
1652     monitor_fdset_dup_fd_find_remove(dup_fd, true);
1653 }
1654
1655 int monitor_fd_param(Monitor *mon, const char *fdname, Error **errp)
1656 {
1657     int fd;
1658     Error *local_err = NULL;
1659
1660     if (!qemu_isdigit(fdname[0]) && mon) {
1661         fd = monitor_get_fd(mon, fdname, &local_err);
1662     } else {
1663         fd = qemu_parse_fd(fdname);
1664         if (fd == -1) {
1665             error_setg(&local_err, "Invalid file descriptor number '%s'",
1666                        fdname);
1667         }
1668     }
1669     if (local_err) {
1670         error_propagate(errp, local_err);
1671         assert(fd == -1);
1672     } else {
1673         assert(fd != -1);
1674     }
1675
1676     return fd;
1677 }
1678
1679 /* Please update hmp-commands.hx when adding or changing commands */
1680 static HMPCommand hmp_info_cmds[] = {
1681 #include "hmp-commands-info.h"
1682     { NULL, NULL, },
1683 };
1684
1685 /* hmp_cmds and hmp_info_cmds would be sorted at runtime */
1686 HMPCommand hmp_cmds[] = {
1687 #include "hmp-commands.h"
1688     { NULL, NULL, },
1689 };
1690
1691 /*
1692  * Set @pval to the value in the register identified by @name.
1693  * return 0 if OK, -1 if not found
1694  */
1695 int get_monitor_def(int64_t *pval, const char *name)
1696 {
1697     const MonitorDef *md = target_monitor_defs();
1698     CPUState *cs = mon_get_cpu();
1699     void *ptr;
1700     uint64_t tmp = 0;
1701     int ret;
1702
1703     if (cs == NULL || md == NULL) {
1704         return -1;
1705     }
1706
1707     for(; md->name != NULL; md++) {
1708         if (hmp_compare_cmd(name, md->name)) {
1709             if (md->get_value) {
1710                 *pval = md->get_value(md, md->offset);
1711             } else {
1712                 CPUArchState *env = mon_get_cpu_env();
1713                 ptr = (uint8_t *)env + md->offset;
1714                 switch(md->type) {
1715                 case MD_I32:
1716                     *pval = *(int32_t *)ptr;
1717                     break;
1718                 case MD_TLONG:
1719                     *pval = *(target_long *)ptr;
1720                     break;
1721                 default:
1722                     *pval = 0;
1723                     break;
1724                 }
1725             }
1726             return 0;
1727         }
1728     }
1729
1730     ret = target_get_monitor_def(cs, name, &tmp);
1731     if (!ret) {
1732         *pval = (target_long) tmp;
1733     }
1734
1735     return ret;
1736 }
1737
1738 static void add_completion_option(ReadLineState *rs, const char *str,
1739                                   const char *option)
1740 {
1741     if (!str || !option) {
1742         return;
1743     }
1744     if (!strncmp(option, str, strlen(str))) {
1745         readline_add_completion(rs, option);
1746     }
1747 }
1748
1749 void chardev_add_completion(ReadLineState *rs, int nb_args, const char *str)
1750 {
1751     size_t len;
1752     ChardevBackendInfoList *list, *start;
1753
1754     if (nb_args != 2) {
1755         return;
1756     }
1757     len = strlen(str);
1758     readline_set_completion_index(rs, len);
1759
1760     start = list = qmp_query_chardev_backends(NULL);
1761     while (list) {
1762         const char *chr_name = list->value->name;
1763
1764         if (!strncmp(chr_name, str, len)) {
1765             readline_add_completion(rs, chr_name);
1766         }
1767         list = list->next;
1768     }
1769     qapi_free_ChardevBackendInfoList(start);
1770 }
1771
1772 void netdev_add_completion(ReadLineState *rs, int nb_args, const char *str)
1773 {
1774     size_t len;
1775     int i;
1776
1777     if (nb_args != 2) {
1778         return;
1779     }
1780     len = strlen(str);
1781     readline_set_completion_index(rs, len);
1782     for (i = 0; i < NET_CLIENT_DRIVER__MAX; i++) {
1783         add_completion_option(rs, str, NetClientDriver_str(i));
1784     }
1785 }
1786
1787 void device_add_completion(ReadLineState *rs, int nb_args, const char *str)
1788 {
1789     GSList *list, *elt;
1790     size_t len;
1791
1792     if (nb_args != 2) {
1793         return;
1794     }
1795
1796     len = strlen(str);
1797     readline_set_completion_index(rs, len);
1798     list = elt = object_class_get_list(TYPE_DEVICE, false);
1799     while (elt) {
1800         const char *name;
1801         DeviceClass *dc = OBJECT_CLASS_CHECK(DeviceClass, elt->data,
1802                                              TYPE_DEVICE);
1803         name = object_class_get_name(OBJECT_CLASS(dc));
1804
1805         if (dc->user_creatable
1806             && !strncmp(name, str, len)) {
1807             readline_add_completion(rs, name);
1808         }
1809         elt = elt->next;
1810     }
1811     g_slist_free(list);
1812 }
1813
1814 void object_add_completion(ReadLineState *rs, int nb_args, const char *str)
1815 {
1816     GSList *list, *elt;
1817     size_t len;
1818
1819     if (nb_args != 2) {
1820         return;
1821     }
1822
1823     len = strlen(str);
1824     readline_set_completion_index(rs, len);
1825     list = elt = object_class_get_list(TYPE_USER_CREATABLE, false);
1826     while (elt) {
1827         const char *name;
1828
1829         name = object_class_get_name(OBJECT_CLASS(elt->data));
1830         if (!strncmp(name, str, len) && strcmp(name, TYPE_USER_CREATABLE)) {
1831             readline_add_completion(rs, name);
1832         }
1833         elt = elt->next;
1834     }
1835     g_slist_free(list);
1836 }
1837
1838 static int qdev_add_hotpluggable_device(Object *obj, void *opaque)
1839 {
1840     GSList **list = opaque;
1841     DeviceState *dev = (DeviceState *)object_dynamic_cast(obj, TYPE_DEVICE);
1842
1843     if (dev == NULL) {
1844         return 0;
1845     }
1846
1847     if (dev->realized && object_property_get_bool(obj, "hotpluggable", NULL)) {
1848         *list = g_slist_append(*list, dev);
1849     }
1850
1851     return 0;
1852 }
1853
1854 static GSList *qdev_build_hotpluggable_device_list(Object *peripheral)
1855 {
1856     GSList *list = NULL;
1857
1858     object_child_foreach(peripheral, qdev_add_hotpluggable_device, &list);
1859
1860     return list;
1861 }
1862
1863 static void peripheral_device_del_completion(ReadLineState *rs,
1864                                              const char *str, size_t len)
1865 {
1866     Object *peripheral = container_get(qdev_get_machine(), "/peripheral");
1867     GSList *list, *item;
1868
1869     list = qdev_build_hotpluggable_device_list(peripheral);
1870     if (!list) {
1871         return;
1872     }
1873
1874     for (item = list; item; item = g_slist_next(item)) {
1875         DeviceState *dev = item->data;
1876
1877         if (dev->id && !strncmp(str, dev->id, len)) {
1878             readline_add_completion(rs, dev->id);
1879         }
1880     }
1881
1882     g_slist_free(list);
1883 }
1884
1885 void chardev_remove_completion(ReadLineState *rs, int nb_args, const char *str)
1886 {
1887     size_t len;
1888     ChardevInfoList *list, *start;
1889
1890     if (nb_args != 2) {
1891         return;
1892     }
1893     len = strlen(str);
1894     readline_set_completion_index(rs, len);
1895
1896     start = list = qmp_query_chardev(NULL);
1897     while (list) {
1898         ChardevInfo *chr = list->value;
1899
1900         if (!strncmp(chr->label, str, len)) {
1901             readline_add_completion(rs, chr->label);
1902         }
1903         list = list->next;
1904     }
1905     qapi_free_ChardevInfoList(start);
1906 }
1907
1908 static void ringbuf_completion(ReadLineState *rs, const char *str)
1909 {
1910     size_t len;
1911     ChardevInfoList *list, *start;
1912
1913     len = strlen(str);
1914     readline_set_completion_index(rs, len);
1915
1916     start = list = qmp_query_chardev(NULL);
1917     while (list) {
1918         ChardevInfo *chr_info = list->value;
1919
1920         if (!strncmp(chr_info->label, str, len)) {
1921             Chardev *chr = qemu_chr_find(chr_info->label);
1922             if (chr && CHARDEV_IS_RINGBUF(chr)) {
1923                 readline_add_completion(rs, chr_info->label);
1924             }
1925         }
1926         list = list->next;
1927     }
1928     qapi_free_ChardevInfoList(start);
1929 }
1930
1931 void ringbuf_write_completion(ReadLineState *rs, int nb_args, const char *str)
1932 {
1933     if (nb_args != 2) {
1934         return;
1935     }
1936     ringbuf_completion(rs, str);
1937 }
1938
1939 void device_del_completion(ReadLineState *rs, int nb_args, const char *str)
1940 {
1941     size_t len;
1942
1943     if (nb_args != 2) {
1944         return;
1945     }
1946
1947     len = strlen(str);
1948     readline_set_completion_index(rs, len);
1949     peripheral_device_del_completion(rs, str, len);
1950 }
1951
1952 void object_del_completion(ReadLineState *rs, int nb_args, const char *str)
1953 {
1954     ObjectPropertyInfoList *list, *start;
1955     size_t len;
1956
1957     if (nb_args != 2) {
1958         return;
1959     }
1960     len = strlen(str);
1961     readline_set_completion_index(rs, len);
1962
1963     start = list = qmp_qom_list("/objects", NULL);
1964     while (list) {
1965         ObjectPropertyInfo *info = list->value;
1966
1967         if (!strncmp(info->type, "child<", 5)
1968             && !strncmp(info->name, str, len)) {
1969             readline_add_completion(rs, info->name);
1970         }
1971         list = list->next;
1972     }
1973     qapi_free_ObjectPropertyInfoList(start);
1974 }
1975
1976 void sendkey_completion(ReadLineState *rs, int nb_args, const char *str)
1977 {
1978     int i;
1979     char *sep;
1980     size_t len;
1981
1982     if (nb_args != 2) {
1983         return;
1984     }
1985     sep = strrchr(str, '-');
1986     if (sep) {
1987         str = sep + 1;
1988     }
1989     len = strlen(str);
1990     readline_set_completion_index(rs, len);
1991     for (i = 0; i < Q_KEY_CODE__MAX; i++) {
1992         if (!strncmp(str, QKeyCode_str(i), len)) {
1993             readline_add_completion(rs, QKeyCode_str(i));
1994         }
1995     }
1996 }
1997
1998 void set_link_completion(ReadLineState *rs, int nb_args, const char *str)
1999 {
2000     size_t len;
2001
2002     len = strlen(str);
2003     readline_set_completion_index(rs, len);
2004     if (nb_args == 2) {
2005         NetClientState *ncs[MAX_QUEUE_NUM];
2006         int count, i;
2007         count = qemu_find_net_clients_except(NULL, ncs,
2008                                              NET_CLIENT_DRIVER_NONE,
2009                                              MAX_QUEUE_NUM);
2010         for (i = 0; i < MIN(count, MAX_QUEUE_NUM); i++) {
2011             const char *name = ncs[i]->name;
2012             if (!strncmp(str, name, len)) {
2013                 readline_add_completion(rs, name);
2014             }
2015         }
2016     } else if (nb_args == 3) {
2017         add_completion_option(rs, str, "on");
2018         add_completion_option(rs, str, "off");
2019     }
2020 }
2021
2022 void netdev_del_completion(ReadLineState *rs, int nb_args, const char *str)
2023 {
2024     int len, count, i;
2025     NetClientState *ncs[MAX_QUEUE_NUM];
2026
2027     if (nb_args != 2) {
2028         return;
2029     }
2030
2031     len = strlen(str);
2032     readline_set_completion_index(rs, len);
2033     count = qemu_find_net_clients_except(NULL, ncs, NET_CLIENT_DRIVER_NIC,
2034                                          MAX_QUEUE_NUM);
2035     for (i = 0; i < MIN(count, MAX_QUEUE_NUM); i++) {
2036         const char *name = ncs[i]->name;
2037         if (strncmp(str, name, len)) {
2038             continue;
2039         }
2040         if (ncs[i]->is_netdev) {
2041             readline_add_completion(rs, name);
2042         }
2043     }
2044 }
2045
2046 void info_trace_events_completion(ReadLineState *rs, int nb_args, const char *str)
2047 {
2048     size_t len;
2049
2050     len = strlen(str);
2051     readline_set_completion_index(rs, len);
2052     if (nb_args == 2) {
2053         TraceEventIter iter;
2054         TraceEvent *ev;
2055         char *pattern = g_strdup_printf("%s*", str);
2056         trace_event_iter_init(&iter, pattern);
2057         while ((ev = trace_event_iter_next(&iter)) != NULL) {
2058             readline_add_completion(rs, trace_event_get_name(ev));
2059         }
2060         g_free(pattern);
2061     }
2062 }
2063
2064 void trace_event_completion(ReadLineState *rs, int nb_args, const char *str)
2065 {
2066     size_t len;
2067
2068     len = strlen(str);
2069     readline_set_completion_index(rs, len);
2070     if (nb_args == 2) {
2071         TraceEventIter iter;
2072         TraceEvent *ev;
2073         char *pattern = g_strdup_printf("%s*", str);
2074         trace_event_iter_init(&iter, pattern);
2075         while ((ev = trace_event_iter_next(&iter)) != NULL) {
2076             readline_add_completion(rs, trace_event_get_name(ev));
2077         }
2078         g_free(pattern);
2079     } else if (nb_args == 3) {
2080         add_completion_option(rs, str, "on");
2081         add_completion_option(rs, str, "off");
2082     }
2083 }
2084
2085 void watchdog_action_completion(ReadLineState *rs, int nb_args, const char *str)
2086 {
2087     int i;
2088
2089     if (nb_args != 2) {
2090         return;
2091     }
2092     readline_set_completion_index(rs, strlen(str));
2093     for (i = 0; i < WATCHDOG_ACTION__MAX; i++) {
2094         add_completion_option(rs, str, WatchdogAction_str(i));
2095     }
2096 }
2097
2098 void migrate_set_capability_completion(ReadLineState *rs, int nb_args,
2099                                        const char *str)
2100 {
2101     size_t len;
2102
2103     len = strlen(str);
2104     readline_set_completion_index(rs, len);
2105     if (nb_args == 2) {
2106         int i;
2107         for (i = 0; i < MIGRATION_CAPABILITY__MAX; i++) {
2108             const char *name = MigrationCapability_str(i);
2109             if (!strncmp(str, name, len)) {
2110                 readline_add_completion(rs, name);
2111             }
2112         }
2113     } else if (nb_args == 3) {
2114         add_completion_option(rs, str, "on");
2115         add_completion_option(rs, str, "off");
2116     }
2117 }
2118
2119 void migrate_set_parameter_completion(ReadLineState *rs, int nb_args,
2120                                       const char *str)
2121 {
2122     size_t len;
2123
2124     len = strlen(str);
2125     readline_set_completion_index(rs, len);
2126     if (nb_args == 2) {
2127         int i;
2128         for (i = 0; i < MIGRATION_PARAMETER__MAX; i++) {
2129             const char *name = MigrationParameter_str(i);
2130             if (!strncmp(str, name, len)) {
2131                 readline_add_completion(rs, name);
2132             }
2133         }
2134     }
2135 }
2136
2137 static void vm_completion(ReadLineState *rs, const char *str)
2138 {
2139     size_t len;
2140     BlockDriverState *bs;
2141     BdrvNextIterator it;
2142
2143     len = strlen(str);
2144     readline_set_completion_index(rs, len);
2145
2146     for (bs = bdrv_first(&it); bs; bs = bdrv_next(&it)) {
2147         SnapshotInfoList *snapshots, *snapshot;
2148         AioContext *ctx = bdrv_get_aio_context(bs);
2149         bool ok = false;
2150
2151         aio_context_acquire(ctx);
2152         if (bdrv_can_snapshot(bs)) {
2153             ok = bdrv_query_snapshot_info_list(bs, &snapshots, NULL) == 0;
2154         }
2155         aio_context_release(ctx);
2156         if (!ok) {
2157             continue;
2158         }
2159
2160         snapshot = snapshots;
2161         while (snapshot) {
2162             char *completion = snapshot->value->name;
2163             if (!strncmp(str, completion, len)) {
2164                 readline_add_completion(rs, completion);
2165             }
2166             completion = snapshot->value->id;
2167             if (!strncmp(str, completion, len)) {
2168                 readline_add_completion(rs, completion);
2169             }
2170             snapshot = snapshot->next;
2171         }
2172         qapi_free_SnapshotInfoList(snapshots);
2173     }
2174
2175 }
2176
2177 void delvm_completion(ReadLineState *rs, int nb_args, const char *str)
2178 {
2179     if (nb_args == 2) {
2180         vm_completion(rs, str);
2181     }
2182 }
2183
2184 void loadvm_completion(ReadLineState *rs, int nb_args, const char *str)
2185 {
2186     if (nb_args == 2) {
2187         vm_completion(rs, str);
2188     }
2189 }
2190
2191 static int
2192 compare_mon_cmd(const void *a, const void *b)
2193 {
2194     return strcmp(((const HMPCommand *)a)->name,
2195             ((const HMPCommand *)b)->name);
2196 }
2197
2198 static void sortcmdlist(void)
2199 {
2200     qsort(hmp_cmds, ARRAY_SIZE(hmp_cmds) - 1,
2201           sizeof(*hmp_cmds),
2202           compare_mon_cmd);
2203     qsort(hmp_info_cmds, ARRAY_SIZE(hmp_info_cmds) - 1,
2204           sizeof(*hmp_info_cmds),
2205           compare_mon_cmd);
2206 }
2207
2208 void monitor_init_globals(void)
2209 {
2210     monitor_init_globals_core();
2211     monitor_init_qmp_commands();
2212     sortcmdlist();
2213     qemu_mutex_init(&mon_fdsets_lock);
2214 }