vl.c

   1 /*
   2  * QEMU System Emulator
   3  *
   4  * Copyright (c) 2003-2008 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 <unistd.h>
  25 #include <fcntl.h>
  26 #include <signal.h>
  27 #include <time.h>
  28 #include <errno.h>
  29 #include <sys/time.h>
  30 #include <zlib.h>
  31
  32 /* Needed early for CONFIG_BSD etc. */
  33 #include "config-host.h"
  34
  35 #ifndef _WIN32
  36 #include <libgen.h>
  37 #include <sys/times.h>
  38 #include <sys/wait.h>
  39 #include <termios.h>
  40 #include <sys/mman.h>
  41 #include <sys/ioctl.h>
  42 #include <sys/resource.h>
  43 #include <sys/socket.h>
  44 #include <netinet/in.h>
  45 #include <net/if.h>
  46 #include <arpa/inet.h>
  47 #include <dirent.h>
  48 #include <netdb.h>
  49 #include <sys/select.h>
  50
  51 #ifdef CONFIG_BSD
  52 #include <sys/stat.h>
  53 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
  54 #include <libutil.h>
  55 #include <sys/sysctl.h>
  56 #else
  57 #include <util.h>
  58 #endif
  59 #else
  60 #ifdef __linux__
  61 #include <pty.h>
  62 #include <malloc.h>
  63
  64 #include <linux/ppdev.h>
  65 #include <linux/parport.h>
  66 #endif
  67 #ifdef __sun__
  68 #include <sys/stat.h>
  69 #include <sys/ethernet.h>
  70 #include <sys/sockio.h>
  71 #include <netinet/arp.h>
  72 #include <netinet/in_systm.h>
  73 #include <netinet/ip.h>
  74 #include <netinet/ip_icmp.h> // must come after ip.h
  75 #include <netinet/udp.h>
  76 #include <netinet/tcp.h>
  77 #include <net/if.h>
  78 #include <syslog.h>
  79 #include <stropts.h>
  80 #endif
  81 #endif
  82 #endif
  83
  84 #if defined(__OpenBSD__)
  85 #include <util.h>
  86 #endif
  87
  88 #if defined(CONFIG_VDE)
  89 #include <libvdeplug.h>
  90 #endif
  91
  92 #ifdef _WIN32
  93 #include <windows.h>
  94 #endif
  95
  96 #ifdef CONFIG_SDL
  97 #if defined(__APPLE__) || defined(main)
  98 #include <SDL.h>
  99 int qemu_main(int argc, char **argv, char **envp);
 100 int main(int argc, char **argv)
 101 {
 102     return qemu_main(argc, argv, NULL);
 103 }
 104 #undef main
 105 #define main qemu_main
 106 #endif
 107 #endif /* CONFIG_SDL */
 108
 109 #ifdef CONFIG_COCOA
 110 #undef main
 111 #define main qemu_main
 112 #endif /* CONFIG_COCOA */
 113
 114 #include <glib.h>
 115
 116 #include "hw/hw.h"
 117 #include "hw/boards.h"
 118 #include "hw/usb.h"
 119 #include "hw/pcmcia.h"
 120 #include "hw/pc.h"
 121 #include "hw/isa.h"
 122 #include "hw/baum.h"
 123 #include "hw/bt.h"
 124 #include "hw/watchdog.h"
 125 #include "hw/smbios.h"
 126 #include "hw/xen.h"
 127 #include "hw/qdev.h"
 128 #include "hw/loader.h"
 129 #include "bt-host.h"
 130 #include "net.h"
 131 #include "net/slirp.h"
 132 #include "monitor.h"
 133 #include "console.h"
 134 #include "sysemu.h"
 135 #include "gdbstub.h"
 136 #include "qemu-timer.h"
 137 #include "qemu-char.h"
 138 #include "cache-utils.h"
 139 #include "block.h"
 140 #include "blockdev.h"
 141 #include "block-migration.h"
 142 #include "dma.h"
 143 #include "audio/audio.h"
 144 #include "migration.h"
 145 #include "kvm.h"
 146 #include "qemu-option.h"
 147 #include "qemu-config.h"
 148 #include "qemu-objects.h"
 149 #include "qemu-options.h"
 150 #include "qmp-commands.h"
 151 #ifdef CONFIG_VIRTFS
 152 #include "fsdev/qemu-fsdev.h"
 153 #endif
 154
 155 #include "disas.h"
 156
 157 #include "qemu_socket.h"
 158
 159 #include "slirp/libslirp.h"
 160
 161 #include "trace.h"
 162 #include "trace/control.h"
 163 #include "qemu-queue.h"
 164 #include "cpus.h"
 165 #include "arch_init.h"
 166
 167 #include "ui/qemu-spice.h"
 168
 169 //#define DEBUG_NET
 170 //#define DEBUG_SLIRP
 171
 172 #define DEFAULT_RAM_SIZE 128
 173
 174 #define MAX_VIRTIO_CONSOLES 1
 175
 176 static const char *data_dir;
 177 const char *bios_name = NULL;
 178 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
 179 DisplayType display_type = DT_DEFAULT;
 180 int display_remote = 0;
 181 const char* keyboard_layout = NULL;
 182 ram_addr_t ram_size;
 183 const char *mem_path = NULL;
 184 #ifdef MAP_POPULATE
 185 int mem_prealloc = 0; /* force preallocation of physical target memory */
 186 #endif
 187 int nb_nics;
 188 NICInfo nd_table[MAX_NICS];
 189 int autostart;
 190 static int rtc_utc = 1;
 191 static int rtc_date_offset = -1; /* -1 means no change */
 192 QEMUClock *rtc_clock;
 193 int vga_interface_type = VGA_NONE;
 194 static int full_screen = 0;
 195 #ifdef CONFIG_SDL
 196 static int no_frame = 0;
 197 #endif
 198 int no_quit = 0;
 199 CharDriverState *serial_hds[MAX_SERIAL_PORTS];
 200 CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
 201 CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES];
 202 int win2k_install_hack = 0;
 203 int rtc_td_hack = 0;
 204 int usb_enabled = 0;
 205 int singlestep = 0;
 206 int smp_cpus = 1;
 207 int max_cpus = 0;
 208 int smp_cores = 1;
 209 int smp_threads = 1;
 210 #ifdef CONFIG_VNC
 211 const char *vnc_display;
 212 #endif
 213 int acpi_enabled = 1;
 214 int no_hpet = 0;
 215 int fd_bootchk = 1;
 216 int no_reboot = 0;
 217 int no_shutdown = 0;
 218 int cursor_hide = 1;
 219 int graphic_rotate = 0;
 220 uint8_t irq0override = 1;
 221 const char *watchdog;
 222 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
 223 int nb_option_roms;
 224 int semihosting_enabled = 0;
 225 int old_param = 0;
 226 const char *qemu_name;
 227 int alt_grab = 0;
 228 int ctrl_grab = 0;
 229 unsigned int nb_prom_envs = 0;
 230 const char *prom_envs[MAX_PROM_ENVS];
 231 int boot_menu;
 232 uint8_t *boot_splash_filedata;
 233 int boot_splash_filedata_size;
 234 uint8_t qemu_extra_params_fw[2];
 235
 236 typedef struct FWBootEntry FWBootEntry;
 237
 238 struct FWBootEntry {
 239     QTAILQ_ENTRY(FWBootEntry) link;
 240     int32_t bootindex;
 241     DeviceState *dev;
 242     char *suffix;
 243 };
 244
 245 QTAILQ_HEAD(, FWBootEntry) fw_boot_order = QTAILQ_HEAD_INITIALIZER(fw_boot_order);
 246
 247 int nb_numa_nodes;
 248 uint64_t node_mem[MAX_NODES];
 249 uint64_t node_cpumask[MAX_NODES];
 250
 251 uint8_t qemu_uuid[16];
 252
 253 static QEMUBootSetHandler *boot_set_handler;
 254 static void *boot_set_opaque;
 255
 256 static NotifierList exit_notifiers =
 257     NOTIFIER_LIST_INITIALIZER(exit_notifiers);
 258
 259 static NotifierList machine_init_done_notifiers =
 260     NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
 261
 262 static int tcg_allowed = 1;
 263 int kvm_allowed = 0;
 264 int xen_allowed = 0;
 265 uint32_t xen_domid;
 266 enum xen_mode xen_mode = XEN_EMULATE;
 267 static int tcg_tb_size;
 268
 269 static int default_serial = 1;
 270 static int default_parallel = 1;
 271 static int default_virtcon = 1;
 272 static int default_monitor = 1;
 273 static int default_vga = 1;
 274 static int default_floppy = 1;
 275 static int default_cdrom = 1;
 276 static int default_sdcard = 1;
 277
 278 static struct {
 279     const char *driver;
 280     int *flag;
 281 } default_list[] = {
 282     { .driver = "isa-serial",           .flag = &default_serial    },
 283     { .driver = "isa-parallel",         .flag = &default_parallel  },
 284     { .driver = "isa-fdc",              .flag = &default_floppy    },
 285     { .driver = "ide-cd",               .flag = &default_cdrom     },
 286     { .driver = "ide-hd",               .flag = &default_cdrom     },
 287     { .driver = "ide-drive",            .flag = &default_cdrom     },
 288     { .driver = "scsi-cd",              .flag = &default_cdrom     },
 289     { .driver = "virtio-serial-pci",    .flag = &default_virtcon   },
 290     { .driver = "virtio-serial-s390",   .flag = &default_virtcon   },
 291     { .driver = "virtio-serial",        .flag = &default_virtcon   },
 292     { .driver = "VGA",                  .flag = &default_vga       },
 293     { .driver = "cirrus-vga",           .flag = &default_vga       },
 294     { .driver = "vmware-svga",          .flag = &default_vga       },
 295     { .driver = "isa-vga",              .flag = &default_vga       },
 296     { .driver = "qxl-vga",              .flag = &default_vga       },
 297 };
 298
 299 static void res_free(void)
 300 {
 301     if (boot_splash_filedata != NULL) {
 302         g_free(boot_splash_filedata);
 303         boot_splash_filedata = NULL;
 304     }
 305 }
 306
 307 static int default_driver_check(QemuOpts *opts, void *opaque)
 308 {
 309     const char *driver = qemu_opt_get(opts, "driver");
 310     int i;
 311
 312     if (!driver)
 313         return 0;
 314     for (i = 0; i < ARRAY_SIZE(default_list); i++) {
 315         if (strcmp(default_list[i].driver, driver) != 0)
 316             continue;
 317         *(default_list[i].flag) = 0;
 318     }
 319     return 0;
 320 }
 321
 322 /***********************************************************/
 323 /* QEMU state */
 324
 325 static RunState current_run_state = RUN_STATE_PRELAUNCH;
 326
 327 typedef struct {
 328     RunState from;
 329     RunState to;
 330 } RunStateTransition;
 331
 332 static const RunStateTransition runstate_transitions_def[] = {
 333     /*     from      ->     to      */
 334     { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
 335
 336     { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
 337     { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
 338
 339     { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
 340     { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
 341
 342     { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
 343     { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
 344
 345     { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
 346     { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
 347
 348     { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
 349     { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
 350
 351     { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
 352     { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
 353     { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
 354
 355     { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
 356     { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
 357
 358     { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
 359
 360     { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
 361     { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
 362     { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
 363     { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
 364     { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
 365     { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
 366     { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
 367     { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
 368     { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
 369
 370     { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
 371
 372     { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
 373     { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
 374
 375     { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
 376     { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
 377
 378     { RUN_STATE_MAX, RUN_STATE_MAX },
 379 };
 380
 381 static bool runstate_valid_transitions[RUN_STATE_MAX][RUN_STATE_MAX];
 382
 383 bool runstate_check(RunState state)
 384 {
 385     return current_run_state == state;
 386 }
 387
 388 void runstate_init(void)
 389 {
 390     const RunStateTransition *p;
 391
 392     memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
 393
 394     for (p = &runstate_transitions_def[0]; p->from != RUN_STATE_MAX; p++) {
 395         runstate_valid_transitions[p->from][p->to] = true;
 396     }
 397 }
 398
 399 /* This function will abort() on invalid state transitions */
 400 void runstate_set(RunState new_state)
 401 {
 402     assert(new_state < RUN_STATE_MAX);
 403
 404     if (!runstate_valid_transitions[current_run_state][new_state]) {
 405         fprintf(stderr, "ERROR: invalid runstate transition: '%s' -> '%s'\n",
 406                 RunState_lookup[current_run_state],
 407                 RunState_lookup[new_state]);
 408         abort();
 409     }
 410
 411     current_run_state = new_state;
 412 }
 413
 414 int runstate_is_running(void)
 415 {
 416     return runstate_check(RUN_STATE_RUNNING);
 417 }
 418
 419 StatusInfo *qmp_query_status(Error **errp)
 420 {
 421     StatusInfo *info = g_malloc0(sizeof(*info));
 422
 423     info->running = runstate_is_running();
 424     info->singlestep = singlestep;
 425     info->status = current_run_state;
 426
 427     return info;
 428 }
 429
 430 /***********************************************************/
 431 /* real time host monotonic timer */
 432
 433 /***********************************************************/
 434 /* host time/date access */
 435 void qemu_get_timedate(struct tm *tm, int offset)
 436 {
 437     time_t ti;
 438     struct tm *ret;
 439
 440     time(&ti);
 441     ti += offset;
 442     if (rtc_date_offset == -1) {
 443         if (rtc_utc)
 444             ret = gmtime(&ti);
 445         else
 446             ret = localtime(&ti);
 447     } else {
 448         ti -= rtc_date_offset;
 449         ret = gmtime(&ti);
 450     }
 451
 452     memcpy(tm, ret, sizeof(struct tm));
 453 }
 454
 455 int qemu_timedate_diff(struct tm *tm)
 456 {
 457     time_t seconds;
 458
 459     if (rtc_date_offset == -1)
 460         if (rtc_utc)
 461             seconds = mktimegm(tm);
 462         else
 463             seconds = mktime(tm);
 464     else
 465         seconds = mktimegm(tm) + rtc_date_offset;
 466
 467     return seconds - time(NULL);
 468 }
 469
 470 void rtc_change_mon_event(struct tm *tm)
 471 {
 472     QObject *data;
 473
 474     data = qobject_from_jsonf("{ 'offset': %d }", qemu_timedate_diff(tm));
 475     monitor_protocol_event(QEVENT_RTC_CHANGE, data);
 476     qobject_decref(data);
 477 }
 478
 479 static void configure_rtc_date_offset(const char *startdate, int legacy)
 480 {
 481     time_t rtc_start_date;
 482     struct tm tm;
 483
 484     if (!strcmp(startdate, "now") && legacy) {
 485         rtc_date_offset = -1;
 486     } else {
 487         if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
 488                    &tm.tm_year,
 489                    &tm.tm_mon,
 490                    &tm.tm_mday,
 491                    &tm.tm_hour,
 492                    &tm.tm_min,
 493                    &tm.tm_sec) == 6) {
 494             /* OK */
 495         } else if (sscanf(startdate, "%d-%d-%d",
 496                           &tm.tm_year,
 497                           &tm.tm_mon,
 498                           &tm.tm_mday) == 3) {
 499             tm.tm_hour = 0;
 500             tm.tm_min = 0;
 501             tm.tm_sec = 0;
 502         } else {
 503             goto date_fail;
 504         }
 505         tm.tm_year -= 1900;
 506         tm.tm_mon--;
 507         rtc_start_date = mktimegm(&tm);
 508         if (rtc_start_date == -1) {
 509         date_fail:
 510             fprintf(stderr, "Invalid date format. Valid formats are:\n"
 511                             "'2006-06-17T16:01:21' or '2006-06-17'\n");
 512             exit(1);
 513         }
 514         rtc_date_offset = time(NULL) - rtc_start_date;
 515     }
 516 }
 517
 518 static void configure_rtc(QemuOpts *opts)
 519 {
 520     const char *value;
 521
 522     value = qemu_opt_get(opts, "base");
 523     if (value) {
 524         if (!strcmp(value, "utc")) {
 525             rtc_utc = 1;
 526         } else if (!strcmp(value, "localtime")) {
 527             rtc_utc = 0;
 528         } else {
 529             configure_rtc_date_offset(value, 0);
 530         }
 531     }
 532     value = qemu_opt_get(opts, "clock");
 533     if (value) {
 534         if (!strcmp(value, "host")) {
 535             rtc_clock = host_clock;
 536         } else if (!strcmp(value, "vm")) {
 537             rtc_clock = vm_clock;
 538         } else {
 539             fprintf(stderr, "qemu: invalid option value '%s'\n", value);
 540             exit(1);
 541         }
 542     }
 543     value = qemu_opt_get(opts, "driftfix");
 544     if (value) {
 545         if (!strcmp(value, "slew")) {
 546             rtc_td_hack = 1;
 547         } else if (!strcmp(value, "none")) {
 548             rtc_td_hack = 0;
 549         } else {
 550             fprintf(stderr, "qemu: invalid option value '%s'\n", value);
 551             exit(1);
 552         }
 553     }
 554 }
 555
 556 /***********************************************************/
 557 /* Bluetooth support */
 558 static int nb_hcis;
 559 static int cur_hci;
 560 static struct HCIInfo *hci_table[MAX_NICS];
 561
 562 static struct bt_vlan_s {
 563     struct bt_scatternet_s net;
 564     int id;
 565     struct bt_vlan_s *next;
 566 } *first_bt_vlan;
 567
 568 /* find or alloc a new bluetooth "VLAN" */
 569 static struct bt_scatternet_s *qemu_find_bt_vlan(int id)
 570 {
 571     struct bt_vlan_s **pvlan, *vlan;
 572     for (vlan = first_bt_vlan; vlan != NULL; vlan = vlan->next) {
 573         if (vlan->id == id)
 574             return &vlan->net;
 575     }
 576     vlan = g_malloc0(sizeof(struct bt_vlan_s));
 577     vlan->id = id;
 578     pvlan = &first_bt_vlan;
 579     while (*pvlan != NULL)
 580         pvlan = &(*pvlan)->next;
 581     *pvlan = vlan;
 582     return &vlan->net;
 583 }
 584
 585 static void null_hci_send(struct HCIInfo *hci, const uint8_t *data, int len)
 586 {
 587 }
 588
 589 static int null_hci_addr_set(struct HCIInfo *hci, const uint8_t *bd_addr)
 590 {
 591     return -ENOTSUP;
 592 }
 593
 594 static struct HCIInfo null_hci = {
 595     .cmd_send = null_hci_send,
 596     .sco_send = null_hci_send,
 597     .acl_send = null_hci_send,
 598     .bdaddr_set = null_hci_addr_set,
 599 };
 600
 601 struct HCIInfo *qemu_next_hci(void)
 602 {
 603     if (cur_hci == nb_hcis)
 604         return &null_hci;
 605
 606     return hci_table[cur_hci++];
 607 }
 608
 609 static struct HCIInfo *hci_init(const char *str)
 610 {
 611     char *endp;
 612     struct bt_scatternet_s *vlan = 0;
 613
 614     if (!strcmp(str, "null"))
 615         /* null */
 616         return &null_hci;
 617     else if (!strncmp(str, "host", 4) && (str[4] == '\0' || str[4] == ':'))
 618         /* host[:hciN] */
 619         return bt_host_hci(str[4] ? str + 5 : "hci0");
 620     else if (!strncmp(str, "hci", 3)) {
 621         /* hci[,vlan=n] */
 622         if (str[3]) {
 623             if (!strncmp(str + 3, ",vlan=", 6)) {
 624                 vlan = qemu_find_bt_vlan(strtol(str + 9, &endp, 0));
 625                 if (*endp)
 626                     vlan = 0;
 627             }
 628         } else
 629             vlan = qemu_find_bt_vlan(0);
 630         if (vlan)
 631            return bt_new_hci(vlan);
 632     }
 633
 634     fprintf(stderr, "qemu: Unknown bluetooth HCI `%s'.\n", str);
 635
 636     return 0;
 637 }
 638
 639 static int bt_hci_parse(const char *str)
 640 {
 641     struct HCIInfo *hci;
 642     bdaddr_t bdaddr;
 643
 644     if (nb_hcis >= MAX_NICS) {
 645         fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
 646         return -1;
 647     }
 648
 649     hci = hci_init(str);
 650     if (!hci)
 651         return -1;
 652
 653     bdaddr.b[0] = 0x52;
 654     bdaddr.b[1] = 0x54;
 655     bdaddr.b[2] = 0x00;
 656     bdaddr.b[3] = 0x12;
 657     bdaddr.b[4] = 0x34;
 658     bdaddr.b[5] = 0x56 + nb_hcis;
 659     hci->bdaddr_set(hci, bdaddr.b);
 660
 661     hci_table[nb_hcis++] = hci;
 662
 663     return 0;
 664 }
 665
 666 static void bt_vhci_add(int vlan_id)
 667 {
 668     struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
 669
 670     if (!vlan->slave)
 671         fprintf(stderr, "qemu: warning: adding a VHCI to "
 672                         "an empty scatternet %i\n", vlan_id);
 673
 674     bt_vhci_init(bt_new_hci(vlan));
 675 }
 676
 677 static struct bt_device_s *bt_device_add(const char *opt)
 678 {
 679     struct bt_scatternet_s *vlan;
 680     int vlan_id = 0;
 681     char *endp = strstr(opt, ",vlan=");
 682     int len = (endp ? endp - opt : strlen(opt)) + 1;
 683     char devname[10];
 684
 685     pstrcpy(devname, MIN(sizeof(devname), len), opt);
 686
 687     if (endp) {
 688         vlan_id = strtol(endp + 6, &endp, 0);
 689         if (*endp) {
 690             fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
 691             return 0;
 692         }
 693     }
 694
 695     vlan = qemu_find_bt_vlan(vlan_id);
 696
 697     if (!vlan->slave)
 698         fprintf(stderr, "qemu: warning: adding a slave device to "
 699                         "an empty scatternet %i\n", vlan_id);
 700
 701     if (!strcmp(devname, "keyboard"))
 702         return bt_keyboard_init(vlan);
 703
 704     fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
 705     return 0;
 706 }
 707
 708 static int bt_parse(const char *opt)
 709 {
 710     const char *endp, *p;
 711     int vlan;
 712
 713     if (strstart(opt, "hci", &endp)) {
 714         if (!*endp || *endp == ',') {
 715             if (*endp)
 716                 if (!strstart(endp, ",vlan=", 0))
 717                     opt = endp + 1;
 718
 719             return bt_hci_parse(opt);
 720        }
 721     } else if (strstart(opt, "vhci", &endp)) {
 722         if (!*endp || *endp == ',') {
 723             if (*endp) {
 724                 if (strstart(endp, ",vlan=", &p)) {
 725                     vlan = strtol(p, (char **) &endp, 0);
 726                     if (*endp) {
 727                         fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
 728                         return 1;
 729                     }
 730                 } else {
 731                     fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1);
 732                     return 1;
 733                 }
 734             } else
 735                 vlan = 0;
 736
 737             bt_vhci_add(vlan);
 738             return 0;
 739         }
 740     } else if (strstart(opt, "device:", &endp))
 741         return !bt_device_add(endp);
 742
 743     fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
 744     return 1;
 745 }
 746
 747 /***********************************************************/
 748 /* QEMU Block devices */
 749
 750 #define HD_OPTS "media=disk"
 751 #define CDROM_OPTS "media=cdrom"
 752 #define FD_OPTS ""
 753 #define PFLASH_OPTS ""
 754 #define MTD_OPTS ""
 755 #define SD_OPTS ""
 756
 757 static int drive_init_func(QemuOpts *opts, void *opaque)
 758 {
 759     int *use_scsi = opaque;
 760
 761     return drive_init(opts, *use_scsi) == NULL;
 762 }
 763
 764 static int drive_enable_snapshot(QemuOpts *opts, void *opaque)
 765 {
 766     if (NULL == qemu_opt_get(opts, "snapshot")) {
 767         qemu_opt_set(opts, "snapshot", "on");
 768     }
 769     return 0;
 770 }
 771
 772 static void default_drive(int enable, int snapshot, int use_scsi,
 773                           BlockInterfaceType type, int index,
 774                           const char *optstr)
 775 {
 776     QemuOpts *opts;
 777
 778     if (type == IF_DEFAULT) {
 779         type = use_scsi ? IF_SCSI : IF_IDE;
 780     }
 781
 782     if (!enable || drive_get_by_index(type, index)) {
 783         return;
 784     }
 785
 786     opts = drive_add(type, index, NULL, optstr);
 787     if (snapshot) {
 788         drive_enable_snapshot(opts, NULL);
 789     }
 790     if (!drive_init(opts, use_scsi)) {
 791         exit(1);
 792     }
 793 }
 794
 795 void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
 796 {
 797     boot_set_handler = func;
 798     boot_set_opaque = opaque;
 799 }
 800
 801 int qemu_boot_set(const char *boot_devices)
 802 {
 803     if (!boot_set_handler) {
 804         return -EINVAL;
 805     }
 806     return boot_set_handler(boot_set_opaque, boot_devices);
 807 }
 808
 809 static void validate_bootdevices(char *devices)
 810 {
 811     /* We just do some generic consistency checks */
 812     const char *p;
 813     int bitmap = 0;
 814
 815     for (p = devices; *p != '\0'; p++) {
 816         /* Allowed boot devices are:
 817          * a-b: floppy disk drives
 818          * c-f: IDE disk drives
 819          * g-m: machine implementation dependant drives
 820          * n-p: network devices
 821          * It's up to each machine implementation to check if the given boot
 822          * devices match the actual hardware implementation and firmware
 823          * features.
 824          */
 825         if (*p < 'a' || *p > 'p') {
 826             fprintf(stderr, "Invalid boot device '%c'\n", *p);
 827             exit(1);
 828         }
 829         if (bitmap & (1 << (*p - 'a'))) {
 830             fprintf(stderr, "Boot device '%c' was given twice\n", *p);
 831             exit(1);
 832         }
 833         bitmap |= 1 << (*p - 'a');
 834     }
 835 }
 836
 837 static void restore_boot_devices(void *opaque)
 838 {
 839     char *standard_boot_devices = opaque;
 840     static int first = 1;
 841
 842     /* Restore boot order and remove ourselves after the first boot */
 843     if (first) {
 844         first = 0;
 845         return;
 846     }
 847
 848     qemu_boot_set(standard_boot_devices);
 849
 850     qemu_unregister_reset(restore_boot_devices, standard_boot_devices);
 851     g_free(standard_boot_devices);
 852 }
 853
 854 void add_boot_device_path(int32_t bootindex, DeviceState *dev,
 855                           const char *suffix)
 856 {
 857     FWBootEntry *node, *i;
 858
 859     if (bootindex < 0) {
 860         return;
 861     }
 862
 863     assert(dev != NULL || suffix != NULL);
 864
 865     node = g_malloc0(sizeof(FWBootEntry));
 866     node->bootindex = bootindex;
 867     node->suffix = suffix ? g_strdup(suffix) : NULL;
 868     node->dev = dev;
 869
 870     QTAILQ_FOREACH(i, &fw_boot_order, link) {
 871         if (i->bootindex == bootindex) {
 872             fprintf(stderr, "Two devices with same boot index %d\n", bootindex);
 873             exit(1);
 874         } else if (i->bootindex < bootindex) {
 875             continue;
 876         }
 877         QTAILQ_INSERT_BEFORE(i, node, link);
 878         return;
 879     }
 880     QTAILQ_INSERT_TAIL(&fw_boot_order, node, link);
 881 }
 882
 883 /*
 884  * This function returns null terminated string that consist of new line
 885  * separated device paths.
 886  *
 887  * memory pointed by "size" is assigned total length of the array in bytes
 888  *
 889  */
 890 char *get_boot_devices_list(uint32_t *size)
 891 {
 892     FWBootEntry *i;
 893     uint32_t total = 0;
 894     char *list = NULL;
 895
 896     QTAILQ_FOREACH(i, &fw_boot_order, link) {
 897         char *devpath = NULL, *bootpath;
 898         int len;
 899
 900         if (i->dev) {
 901             devpath = qdev_get_fw_dev_path(i->dev);
 902             assert(devpath);
 903         }
 904
 905         if (i->suffix && devpath) {
 906             size_t bootpathlen = strlen(devpath) + strlen(i->suffix) + 1;
 907
 908             bootpath = g_malloc(bootpathlen);
 909             snprintf(bootpath, bootpathlen, "%s%s", devpath, i->suffix);
 910             g_free(devpath);
 911         } else if (devpath) {
 912             bootpath = devpath;
 913         } else {
 914             bootpath = g_strdup(i->suffix);
 915             assert(bootpath);
 916         }
 917
 918         if (total) {
 919             list[total-1] = '\n';
 920         }
 921         len = strlen(bootpath) + 1;
 922         list = g_realloc(list, total + len);
 923         memcpy(&list[total], bootpath, len);
 924         total += len;
 925         g_free(bootpath);
 926     }
 927
 928     *size = total;
 929
 930     return list;
 931 }
 932
 933 static void numa_add(const char *optarg)
 934 {
 935     char option[128];
 936     char *endptr;
 937     unsigned long long value, endvalue;
 938     int nodenr;
 939
 940     optarg = get_opt_name(option, 128, optarg, ',') + 1;
 941     if (!strcmp(option, "node")) {
 942         if (get_param_value(option, 128, "nodeid", optarg) == 0) {
 943             nodenr = nb_numa_nodes;
 944         } else {
 945             nodenr = strtoull(option, NULL, 10);
 946         }
 947
 948         if (get_param_value(option, 128, "mem", optarg) == 0) {
 949             node_mem[nodenr] = 0;
 950         } else {
 951             int64_t sval;
 952             sval = strtosz(option, NULL);
 953             if (sval < 0) {
 954                 fprintf(stderr, "qemu: invalid numa mem size: %s\n", optarg);
 955                 exit(1);
 956             }
 957             node_mem[nodenr] = sval;
 958         }
 959         if (get_param_value(option, 128, "cpus", optarg) == 0) {
 960             node_cpumask[nodenr] = 0;
 961         } else {
 962             value = strtoull(option, &endptr, 10);
 963             if (value >= 64) {
 964                 value = 63;
 965                 fprintf(stderr, "only 64 CPUs in NUMA mode supported.\n");
 966             } else {
 967                 if (*endptr == '-') {
 968                     endvalue = strtoull(endptr+1, &endptr, 10);
 969                     if (endvalue >= 63) {
 970                         endvalue = 62;
 971                         fprintf(stderr,
 972                             "only 63 CPUs in NUMA mode supported.\n");
 973                     }
 974                     value = (2ULL << endvalue) - (1ULL << value);
 975                 } else {
 976                     value = 1ULL << value;
 977                 }
 978             }
 979             node_cpumask[nodenr] = value;
 980         }
 981         nb_numa_nodes++;
 982     }
 983     return;
 984 }
 985
 986 static void smp_parse(const char *optarg)
 987 {
 988     int smp, sockets = 0, threads = 0, cores = 0;
 989     char *endptr;
 990     char option[128];
 991
 992     smp = strtoul(optarg, &endptr, 10);
 993     if (endptr != optarg) {
 994         if (*endptr == ',') {
 995             endptr++;
 996         }
 997     }
 998     if (get_param_value(option, 128, "sockets", endptr) != 0)
 999         sockets = strtoull(option, NULL, 10);
1000     if (get_param_value(option, 128, "cores", endptr) != 0)
1001         cores = strtoull(option, NULL, 10);
1002     if (get_param_value(option, 128, "threads", endptr) != 0)
1003         threads = strtoull(option, NULL, 10);
1004     if (get_param_value(option, 128, "maxcpus", endptr) != 0)
1005         max_cpus = strtoull(option, NULL, 10);
1006
1007     /* compute missing values, prefer sockets over cores over threads */
1008     if (smp == 0 || sockets == 0) {
1009         sockets = sockets > 0 ? sockets : 1;
1010         cores = cores > 0 ? cores : 1;
1011         threads = threads > 0 ? threads : 1;
1012         if (smp == 0) {
1013             smp = cores * threads * sockets;
1014         }
1015     } else {
1016         if (cores == 0) {
1017             threads = threads > 0 ? threads : 1;
1018             cores = smp / (sockets * threads);
1019         } else {
1020             threads = smp / (cores * sockets);
1021         }
1022     }
1023     smp_cpus = smp;
1024     smp_cores = cores > 0 ? cores : 1;
1025     smp_threads = threads > 0 ? threads : 1;
1026     if (max_cpus == 0)
1027         max_cpus = smp_cpus;
1028 }
1029
1030 /***********************************************************/
1031 /* USB devices */
1032
1033 static int usb_device_add(const char *devname)
1034 {
1035     const char *p;
1036     USBDevice *dev = NULL;
1037
1038     if (!usb_enabled)
1039         return -1;
1040
1041     /* drivers with .usbdevice_name entry in USBDeviceInfo */
1042     dev = usbdevice_create(devname);
1043     if (dev)
1044         goto done;
1045
1046     /* the other ones */
1047 #ifndef CONFIG_LINUX
1048     /* only the linux version is qdev-ified, usb-bsd still needs this */
1049     if (strstart(devname, "host:", &p)) {
1050         dev = usb_host_device_open(p);
1051     } else
1052 #endif
1053     if (!strcmp(devname, "bt") || strstart(devname, "bt:", &p)) {
1054         dev = usb_bt_init(devname[2] ? hci_init(p) :
1055                         bt_new_hci(qemu_find_bt_vlan(0)));
1056     } else {
1057         return -1;
1058     }
1059     if (!dev)
1060         return -1;
1061
1062 done:
1063     return 0;
1064 }
1065
1066 static int usb_device_del(const char *devname)
1067 {
1068     int bus_num, addr;
1069     const char *p;
1070
1071     if (strstart(devname, "host:", &p))
1072         return usb_host_device_close(p);
1073
1074     if (!usb_enabled)
1075         return -1;
1076
1077     p = strchr(devname, '.');
1078     if (!p)
1079         return -1;
1080     bus_num = strtoul(devname, NULL, 0);
1081     addr = strtoul(p + 1, NULL, 0);
1082
1083     return usb_device_delete_addr(bus_num, addr);
1084 }
1085
1086 static int usb_parse(const char *cmdline)
1087 {
1088     int r;
1089     r = usb_device_add(cmdline);
1090     if (r < 0) {
1091         fprintf(stderr, "qemu: could not add USB device '%s'\n", cmdline);
1092     }
1093     return r;
1094 }
1095
1096 void do_usb_add(Monitor *mon, const QDict *qdict)
1097 {
1098     const char *devname = qdict_get_str(qdict, "devname");
1099     if (usb_device_add(devname) < 0) {
1100         error_report("could not add USB device '%s'", devname);
1101     }
1102 }
1103
1104 void do_usb_del(Monitor *mon, const QDict *qdict)
1105 {
1106     const char *devname = qdict_get_str(qdict, "devname");
1107     if (usb_device_del(devname) < 0) {
1108         error_report("could not delete USB device '%s'", devname);
1109     }
1110 }
1111
1112 /***********************************************************/
1113 /* PCMCIA/Cardbus */
1114
1115 static struct pcmcia_socket_entry_s {
1116     PCMCIASocket *socket;
1117     struct pcmcia_socket_entry_s *next;
1118 } *pcmcia_sockets = 0;
1119
1120 void pcmcia_socket_register(PCMCIASocket *socket)
1121 {
1122     struct pcmcia_socket_entry_s *entry;
1123
1124     entry = g_malloc(sizeof(struct pcmcia_socket_entry_s));
1125     entry->socket = socket;
1126     entry->next = pcmcia_sockets;
1127     pcmcia_sockets = entry;
1128 }
1129
1130 void pcmcia_socket_unregister(PCMCIASocket *socket)
1131 {
1132     struct pcmcia_socket_entry_s *entry, **ptr;
1133
1134     ptr = &pcmcia_sockets;
1135     for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
1136         if (entry->socket == socket) {
1137             *ptr = entry->next;
1138             g_free(entry);
1139         }
1140 }
1141
1142 void pcmcia_info(Monitor *mon)
1143 {
1144     struct pcmcia_socket_entry_s *iter;
1145
1146     if (!pcmcia_sockets)
1147         monitor_printf(mon, "No PCMCIA sockets\n");
1148
1149     for (iter = pcmcia_sockets; iter; iter = iter->next)
1150         monitor_printf(mon, "%s: %s\n", iter->socket->slot_string,
1151                        iter->socket->attached ? iter->socket->card_string :
1152                        "Empty");
1153 }
1154
1155 /***********************************************************/
1156 /* machine registration */
1157
1158 static QEMUMachine *first_machine = NULL;
1159 QEMUMachine *current_machine = NULL;
1160
1161 int qemu_register_machine(QEMUMachine *m)
1162 {
1163     QEMUMachine **pm;
1164     pm = &first_machine;
1165     while (*pm != NULL)
1166         pm = &(*pm)->next;
1167     m->next = NULL;
1168     *pm = m;
1169     return 0;
1170 }
1171
1172 static QEMUMachine *find_machine(const char *name)
1173 {
1174     QEMUMachine *m;
1175
1176     for(m = first_machine; m != NULL; m = m->next) {
1177         if (!strcmp(m->name, name))
1178             return m;
1179         if (m->alias && !strcmp(m->alias, name))
1180             return m;
1181     }
1182     return NULL;
1183 }
1184
1185 static QEMUMachine *find_default_machine(void)
1186 {
1187     QEMUMachine *m;
1188
1189     for(m = first_machine; m != NULL; m = m->next) {
1190         if (m->is_default) {
1191             return m;
1192         }
1193     }
1194     return NULL;
1195 }
1196
1197 /***********************************************************/
1198 /* main execution loop */
1199
1200 static void gui_update(void *opaque)
1201 {
1202     uint64_t interval = GUI_REFRESH_INTERVAL;
1203     DisplayState *ds = opaque;
1204     DisplayChangeListener *dcl = ds->listeners;
1205
1206     dpy_refresh(ds);
1207
1208     while (dcl != NULL) {
1209         if (dcl->gui_timer_interval &&
1210             dcl->gui_timer_interval < interval)
1211             interval = dcl->gui_timer_interval;
1212         dcl = dcl->next;
1213     }
1214     qemu_mod_timer(ds->gui_timer, interval + qemu_get_clock_ms(rt_clock));
1215 }
1216
1217 struct vm_change_state_entry {
1218     VMChangeStateHandler *cb;
1219     void *opaque;
1220     QLIST_ENTRY (vm_change_state_entry) entries;
1221 };
1222
1223 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1224
1225 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1226                                                      void *opaque)
1227 {
1228     VMChangeStateEntry *e;
1229
1230     e = g_malloc0(sizeof (*e));
1231
1232     e->cb = cb;
1233     e->opaque = opaque;
1234     QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1235     return e;
1236 }
1237
1238 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1239 {
1240     QLIST_REMOVE (e, entries);
1241     g_free (e);
1242 }
1243
1244 void vm_state_notify(int running, RunState state)
1245 {
1246     VMChangeStateEntry *e;
1247
1248     trace_vm_state_notify(running, state);
1249
1250     for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
1251         e->cb(e->opaque, running, state);
1252     }
1253 }
1254
1255 void vm_start(void)
1256 {
1257     if (!runstate_is_running()) {
1258         cpu_enable_ticks();
1259         runstate_set(RUN_STATE_RUNNING);
1260         vm_state_notify(1, RUN_STATE_RUNNING);
1261         resume_all_vcpus();
1262         monitor_protocol_event(QEVENT_RESUME, NULL);
1263     }
1264 }
1265
1266 /* reset/shutdown handler */
1267
1268 typedef struct QEMUResetEntry {
1269     QTAILQ_ENTRY(QEMUResetEntry) entry;
1270     QEMUResetHandler *func;
1271     void *opaque;
1272 } QEMUResetEntry;
1273
1274 static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
1275     QTAILQ_HEAD_INITIALIZER(reset_handlers);
1276 static int reset_requested;
1277 static int shutdown_requested, shutdown_signal = -1;
1278 static pid_t shutdown_pid;
1279 static int powerdown_requested;
1280 static int debug_requested;
1281 static RunState vmstop_requested = RUN_STATE_MAX;
1282
1283 int qemu_shutdown_requested_get(void)
1284 {
1285     return shutdown_requested;
1286 }
1287
1288 int qemu_reset_requested_get(void)
1289 {
1290     return reset_requested;
1291 }
1292
1293 int qemu_shutdown_requested(void)
1294 {
1295     int r = shutdown_requested;
1296     shutdown_requested = 0;
1297     return r;
1298 }
1299
1300 void qemu_kill_report(void)
1301 {
1302     if (shutdown_signal != -1) {
1303         fprintf(stderr, "qemu: terminating on signal %d", shutdown_signal);
1304         if (shutdown_pid == 0) {
1305             /* This happens for eg ^C at the terminal, so it's worth
1306              * avoiding printing an odd message in that case.
1307              */
1308             fputc('\n', stderr);
1309         } else {
1310             fprintf(stderr, " from pid " FMT_pid "\n", shutdown_pid);
1311         }
1312         shutdown_signal = -1;
1313     }
1314 }
1315
1316 int qemu_reset_requested(void)
1317 {
1318     int r = reset_requested;
1319     reset_requested = 0;
1320     return r;
1321 }
1322
1323 int qemu_powerdown_requested(void)
1324 {
1325     int r = powerdown_requested;
1326     powerdown_requested = 0;
1327     return r;
1328 }
1329
1330 static int qemu_debug_requested(void)
1331 {
1332     int r = debug_requested;
1333     debug_requested = 0;
1334     return r;
1335 }
1336
1337 /* We use RUN_STATE_MAX but any invalid value will do */
1338 static bool qemu_vmstop_requested(RunState *r)
1339 {
1340     if (vmstop_requested < RUN_STATE_MAX) {
1341         *r = vmstop_requested;
1342         vmstop_requested = RUN_STATE_MAX;
1343         return true;
1344     }
1345
1346     return false;
1347 }
1348
1349 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
1350 {
1351     QEMUResetEntry *re = g_malloc0(sizeof(QEMUResetEntry));
1352
1353     re->func = func;
1354     re->opaque = opaque;
1355     QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
1356 }
1357
1358 void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
1359 {
1360     QEMUResetEntry *re;
1361
1362     QTAILQ_FOREACH(re, &reset_handlers, entry) {
1363         if (re->func == func && re->opaque == opaque) {
1364             QTAILQ_REMOVE(&reset_handlers, re, entry);
1365             g_free(re);
1366             return;
1367         }
1368     }
1369 }
1370
1371 void qemu_system_reset(bool report)
1372 {
1373     QEMUResetEntry *re, *nre;
1374
1375     /* reset all devices */
1376     QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
1377         re->func(re->opaque);
1378     }
1379     if (report) {
1380         monitor_protocol_event(QEVENT_RESET, NULL);
1381     }
1382     cpu_synchronize_all_post_reset();
1383 }
1384
1385 void qemu_system_reset_request(void)
1386 {
1387     if (no_reboot) {
1388         shutdown_requested = 1;
1389     } else {
1390         reset_requested = 1;
1391     }
1392     cpu_stop_current();
1393     qemu_notify_event();
1394 }
1395
1396 void qemu_system_killed(int signal, pid_t pid)
1397 {
1398     shutdown_signal = signal;
1399     shutdown_pid = pid;
1400     no_shutdown = 0;
1401     qemu_system_shutdown_request();
1402 }
1403
1404 void qemu_system_shutdown_request(void)
1405 {
1406     shutdown_requested = 1;
1407     qemu_notify_event();
1408 }
1409
1410 void qemu_system_powerdown_request(void)
1411 {
1412     powerdown_requested = 1;
1413     qemu_notify_event();
1414 }
1415
1416 void qemu_system_debug_request(void)
1417 {
1418     debug_requested = 1;
1419     qemu_notify_event();
1420 }
1421
1422 void qemu_system_vmstop_request(RunState state)
1423 {
1424     vmstop_requested = state;
1425     qemu_notify_event();
1426 }
1427
1428 static GPollFD poll_fds[1024 * 2]; /* this is probably overkill */
1429 static int n_poll_fds;
1430 static int max_priority;
1431
1432 static void glib_select_fill(int *max_fd, fd_set *rfds, fd_set *wfds,
1433                              fd_set *xfds, struct timeval *tv)
1434 {
1435     GMainContext *context = g_main_context_default();
1436     int i;
1437     int timeout = 0, cur_timeout;
1438
1439     g_main_context_prepare(context, &max_priority);
1440
1441     n_poll_fds = g_main_context_query(context, max_priority, &timeout,
1442                                       poll_fds, ARRAY_SIZE(poll_fds));
1443     g_assert(n_poll_fds <= ARRAY_SIZE(poll_fds));
1444
1445     for (i = 0; i < n_poll_fds; i++) {
1446         GPollFD *p = &poll_fds[i];
1447
1448         if ((p->events & G_IO_IN)) {
1449             FD_SET(p->fd, rfds);
1450             *max_fd = MAX(*max_fd, p->fd);
1451         }
1452         if ((p->events & G_IO_OUT)) {
1453             FD_SET(p->fd, wfds);
1454             *max_fd = MAX(*max_fd, p->fd);
1455         }
1456         if ((p->events & G_IO_ERR)) {
1457             FD_SET(p->fd, xfds);
1458             *max_fd = MAX(*max_fd, p->fd);
1459         }
1460     }
1461
1462     cur_timeout = (tv->tv_sec * 1000) + ((tv->tv_usec + 500) / 1000);
1463     if (timeout >= 0 && timeout < cur_timeout) {
1464         tv->tv_sec = timeout / 1000;
1465         tv->tv_usec = (timeout % 1000) * 1000;
1466     }
1467 }
1468
1469 static void glib_select_poll(fd_set *rfds, fd_set *wfds, fd_set *xfds,
1470                              bool err)
1471 {
1472     GMainContext *context = g_main_context_default();
1473
1474     if (!err) {
1475         int i;
1476
1477         for (i = 0; i < n_poll_fds; i++) {
1478             GPollFD *p = &poll_fds[i];
1479
1480             if ((p->events & G_IO_IN) && FD_ISSET(p->fd, rfds)) {
1481                 p->revents |= G_IO_IN;
1482             }
1483             if ((p->events & G_IO_OUT) && FD_ISSET(p->fd, wfds)) {
1484                 p->revents |= G_IO_OUT;
1485             }
1486             if ((p->events & G_IO_ERR) && FD_ISSET(p->fd, xfds)) {
1487                 p->revents |= G_IO_ERR;
1488             }
1489         }
1490     }
1491
1492     if (g_main_context_check(context, max_priority, poll_fds, n_poll_fds)) {
1493         g_main_context_dispatch(context);
1494     }
1495 }
1496
1497 int main_loop_wait(int nonblocking)
1498 {
1499     fd_set rfds, wfds, xfds;
1500     int ret, nfds;
1501     struct timeval tv;
1502     int timeout;
1503
1504     if (nonblocking)
1505         timeout = 0;
1506     else {
1507         timeout = qemu_calculate_timeout();
1508         qemu_bh_update_timeout(&timeout);
1509     }
1510
1511     os_host_main_loop_wait(&timeout);
1512
1513     tv.tv_sec = timeout / 1000;
1514     tv.tv_usec = (timeout % 1000) * 1000;
1515
1516     /* poll any events */
1517     /* XXX: separate device handlers from system ones */
1518     nfds = -1;
1519     FD_ZERO(&rfds);
1520     FD_ZERO(&wfds);
1521     FD_ZERO(&xfds);
1522
1523     qemu_iohandler_fill(&nfds, &rfds, &wfds, &xfds);
1524     slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
1525     glib_select_fill(&nfds, &rfds, &wfds, &xfds, &tv);
1526
1527     if (timeout > 0) {
1528         qemu_mutex_unlock_iothread();
1529     }
1530
1531     ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
1532
1533     if (timeout > 0) {
1534         qemu_mutex_lock_iothread();
1535     }
1536
1537     qemu_iohandler_poll(&rfds, &wfds, &xfds, ret);
1538     slirp_select_poll(&rfds, &wfds, &xfds, (ret < 0));
1539     glib_select_poll(&rfds, &wfds, &xfds, (ret < 0));
1540
1541     qemu_run_all_timers();
1542
1543     /* Check bottom-halves last in case any of the earlier events triggered
1544        them.  */
1545     qemu_bh_poll();
1546
1547     return ret;
1548 }
1549
1550 qemu_irq qemu_system_powerdown;
1551
1552 static void main_loop(void)
1553 {
1554     bool nonblocking;
1555     int last_io __attribute__ ((unused)) = 0;
1556 #ifdef CONFIG_PROFILER
1557     int64_t ti;
1558 #endif
1559     RunState r;
1560
1561     qemu_main_loop_start();
1562
1563     for (;;) {
1564         nonblocking = !kvm_enabled() && last_io > 0;
1565 #ifdef CONFIG_PROFILER
1566         ti = profile_getclock();
1567 #endif
1568         last_io = main_loop_wait(nonblocking);
1569 #ifdef CONFIG_PROFILER
1570         dev_time += profile_getclock() - ti;
1571 #endif
1572
1573         if (qemu_debug_requested()) {
1574             vm_stop(RUN_STATE_DEBUG);
1575         }
1576         if (qemu_shutdown_requested()) {
1577             qemu_kill_report();
1578             monitor_protocol_event(QEVENT_SHUTDOWN, NULL);
1579             if (no_shutdown) {
1580                 vm_stop(RUN_STATE_SHUTDOWN);
1581             } else
1582                 break;
1583         }
1584         if (qemu_reset_requested()) {
1585             pause_all_vcpus();
1586             cpu_synchronize_all_states();
1587             qemu_system_reset(VMRESET_REPORT);
1588             resume_all_vcpus();
1589             if (runstate_check(RUN_STATE_INTERNAL_ERROR) ||
1590                 runstate_check(RUN_STATE_SHUTDOWN)) {
1591                 runstate_set(RUN_STATE_PAUSED);
1592             }
1593         }
1594         if (qemu_powerdown_requested()) {
1595             monitor_protocol_event(QEVENT_POWERDOWN, NULL);
1596             qemu_irq_raise(qemu_system_powerdown);
1597         }
1598         if (qemu_vmstop_requested(&r)) {
1599             vm_stop(r);
1600         }
1601     }
1602     bdrv_close_all();
1603     pause_all_vcpus();
1604 }
1605
1606 static void version(void)
1607 {
1608     printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
1609 }
1610
1611 static void help(int exitcode)
1612 {
1613     const char *options_help =
1614 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask)     \
1615         opt_help
1616 #define DEFHEADING(text) stringify(text) "\n"
1617 #include "qemu-options.def"
1618 #undef DEF
1619 #undef DEFHEADING
1620 #undef GEN_DOCS
1621         ;
1622     version();
1623     printf("usage: %s [options] [disk_image]\n"
1624            "\n"
1625            "'disk_image' is a raw hard disk image for IDE hard disk 0\n"
1626            "\n"
1627            "%s\n"
1628            "During emulation, the following keys are useful:\n"
1629            "ctrl-alt-f      toggle full screen\n"
1630            "ctrl-alt-n      switch to virtual console 'n'\n"
1631            "ctrl-alt        toggle mouse and keyboard grab\n"
1632            "\n"
1633            "When using -nographic, press 'ctrl-a h' to get some help.\n",
1634            "qemu",
1635            options_help);
1636     exit(exitcode);
1637 }
1638
1639 #define HAS_ARG 0x0001
1640
1641 typedef struct QEMUOption {
1642     const char *name;
1643     int flags;
1644     int index;
1645     uint32_t arch_mask;
1646 } QEMUOption;
1647
1648 static const QEMUOption qemu_options[] = {
1649     { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1650 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask)     \
1651     { option, opt_arg, opt_enum, arch_mask },
1652 #define DEFHEADING(text)
1653 #include "qemu-options.def"
1654 #undef DEF
1655 #undef DEFHEADING
1656 #undef GEN_DOCS
1657     { NULL },
1658 };
1659 static void select_vgahw (const char *p)
1660 {
1661     const char *opts;
1662
1663     default_vga = 0;
1664     vga_interface_type = VGA_NONE;
1665     if (strstart(p, "std", &opts)) {
1666         vga_interface_type = VGA_STD;
1667     } else if (strstart(p, "cirrus", &opts)) {
1668         vga_interface_type = VGA_CIRRUS;
1669     } else if (strstart(p, "vmware", &opts)) {
1670         vga_interface_type = VGA_VMWARE;
1671     } else if (strstart(p, "xenfb", &opts)) {
1672         vga_interface_type = VGA_XENFB;
1673     } else if (strstart(p, "qxl", &opts)) {
1674         vga_interface_type = VGA_QXL;
1675     } else if (!strstart(p, "none", &opts)) {
1676     invalid_vga:
1677         fprintf(stderr, "Unknown vga type: %s\n", p);
1678         exit(1);
1679     }
1680     while (*opts) {
1681         const char *nextopt;
1682
1683         if (strstart(opts, ",retrace=", &nextopt)) {
1684             opts = nextopt;
1685             if (strstart(opts, "dumb", &nextopt))
1686                 vga_retrace_method = VGA_RETRACE_DUMB;
1687             else if (strstart(opts, "precise", &nextopt))
1688                 vga_retrace_method = VGA_RETRACE_PRECISE;
1689             else goto invalid_vga;
1690         } else goto invalid_vga;
1691         opts = nextopt;
1692     }
1693 }
1694
1695 static DisplayType select_display(const char *p)
1696 {
1697     const char *opts;
1698     DisplayType display = DT_DEFAULT;
1699
1700     if (strstart(p, "sdl", &opts)) {
1701 #ifdef CONFIG_SDL
1702         display = DT_SDL;
1703         while (*opts) {
1704             const char *nextopt;
1705
1706             if (strstart(opts, ",frame=", &nextopt)) {
1707                 opts = nextopt;
1708                 if (strstart(opts, "on", &nextopt)) {
1709                     no_frame = 0;
1710                 } else if (strstart(opts, "off", &nextopt)) {
1711                     no_frame = 1;
1712                 } else {
1713                     goto invalid_sdl_args;
1714                 }
1715             } else if (strstart(opts, ",alt_grab=", &nextopt)) {
1716                 opts = nextopt;
1717                 if (strstart(opts, "on", &nextopt)) {
1718                     alt_grab = 1;
1719                 } else if (strstart(opts, "off", &nextopt)) {
1720                     alt_grab = 0;
1721                 } else {
1722                     goto invalid_sdl_args;
1723                 }
1724             } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
1725                 opts = nextopt;
1726                 if (strstart(opts, "on", &nextopt)) {
1727                     ctrl_grab = 1;
1728                 } else if (strstart(opts, "off", &nextopt)) {
1729                     ctrl_grab = 0;
1730                 } else {
1731                     goto invalid_sdl_args;
1732                 }
1733             } else if (strstart(opts, ",window_close=", &nextopt)) {
1734                 opts = nextopt;
1735                 if (strstart(opts, "on", &nextopt)) {
1736                     no_quit = 0;
1737                 } else if (strstart(opts, "off", &nextopt)) {
1738                     no_quit = 1;
1739                 } else {
1740                     goto invalid_sdl_args;
1741                 }
1742             } else {
1743             invalid_sdl_args:
1744                 fprintf(stderr, "Invalid SDL option string: %s\n", p);
1745                 exit(1);
1746             }
1747             opts = nextopt;
1748         }
1749 #else
1750         fprintf(stderr, "SDL support is disabled\n");
1751         exit(1);
1752 #endif
1753     } else if (strstart(p, "vnc", &opts)) {
1754 #ifdef CONFIG_VNC
1755         display_remote++;
1756
1757         if (*opts) {
1758             const char *nextopt;
1759
1760             if (strstart(opts, "=", &nextopt)) {
1761                 vnc_display = nextopt;
1762             }
1763         }
1764         if (!vnc_display) {
1765             fprintf(stderr, "VNC requires a display argument vnc=<display>\n");
1766             exit(1);
1767         }
1768 #else
1769         fprintf(stderr, "VNC support is disabled\n");
1770         exit(1);
1771 #endif
1772     } else if (strstart(p, "curses", &opts)) {
1773 #ifdef CONFIG_CURSES
1774         display = DT_CURSES;
1775 #else
1776         fprintf(stderr, "Curses support is disabled\n");
1777         exit(1);
1778 #endif
1779     } else if (strstart(p, "none", &opts)) {
1780         display = DT_NONE;
1781     } else {
1782         fprintf(stderr, "Unknown display type: %s\n", p);
1783         exit(1);
1784     }
1785
1786     return display;
1787 }
1788
1789 static int balloon_parse(const char *arg)
1790 {
1791     QemuOpts *opts;
1792
1793     if (strcmp(arg, "none") == 0) {
1794         return 0;
1795     }
1796
1797     if (!strncmp(arg, "virtio", 6)) {
1798         if (arg[6] == ',') {
1799             /* have params -> parse them */
1800             opts = qemu_opts_parse(qemu_find_opts("device"), arg+7, 0);
1801             if (!opts)
1802                 return  -1;
1803         } else {
1804             /* create empty opts */
1805             opts = qemu_opts_create(qemu_find_opts("device"), NULL, 0);
1806         }
1807         qemu_opt_set(opts, "driver", "virtio-balloon");
1808         return 0;
1809     }
1810
1811     return -1;
1812 }
1813
1814 char *qemu_find_file(int type, const char *name)
1815 {
1816     int len;
1817     const char *subdir;
1818     char *buf;
1819
1820     /* If name contains path separators then try it as a straight path.  */
1821     if ((strchr(name, '/') || strchr(name, '\\'))
1822         && access(name, R_OK) == 0) {
1823         return g_strdup(name);
1824     }
1825     switch (type) {
1826     case QEMU_FILE_TYPE_BIOS:
1827         subdir = "";
1828         break;
1829     case QEMU_FILE_TYPE_KEYMAP:
1830         subdir = "keymaps/";
1831         break;
1832     default:
1833         abort();
1834     }
1835     len = strlen(data_dir) + strlen(name) + strlen(subdir) + 2;
1836     buf = g_malloc0(len);
1837     snprintf(buf, len, "%s/%s%s", data_dir, subdir, name);
1838     if (access(buf, R_OK)) {
1839         g_free(buf);
1840         return NULL;
1841     }
1842     return buf;
1843 }
1844
1845 static int device_help_func(QemuOpts *opts, void *opaque)
1846 {
1847     return qdev_device_help(opts);
1848 }
1849
1850 static int device_init_func(QemuOpts *opts, void *opaque)
1851 {
1852     DeviceState *dev;
1853
1854     dev = qdev_device_add(opts);
1855     if (!dev)
1856         return -1;
1857     return 0;
1858 }
1859
1860 static int chardev_init_func(QemuOpts *opts, void *opaque)
1861 {
1862     CharDriverState *chr;
1863
1864     chr = qemu_chr_new_from_opts(opts, NULL);
1865     if (!chr)
1866         return -1;
1867     return 0;
1868 }
1869
1870 #ifdef CONFIG_VIRTFS
1871 static int fsdev_init_func(QemuOpts *opts, void *opaque)
1872 {
1873     int ret;
1874     ret = qemu_fsdev_add(opts);
1875
1876     return ret;
1877 }
1878 #endif
1879
1880 static int mon_init_func(QemuOpts *opts, void *opaque)
1881 {
1882     CharDriverState *chr;
1883     const char *chardev;
1884     const char *mode;
1885     int flags;
1886
1887     mode = qemu_opt_get(opts, "mode");
1888     if (mode == NULL) {
1889         mode = "readline";
1890     }
1891     if (strcmp(mode, "readline") == 0) {
1892         flags = MONITOR_USE_READLINE;
1893     } else if (strcmp(mode, "control") == 0) {
1894         flags = MONITOR_USE_CONTROL;
1895     } else {
1896         fprintf(stderr, "unknown monitor mode \"%s\"\n", mode);
1897         exit(1);
1898     }
1899
1900     if (qemu_opt_get_bool(opts, "pretty", 0))
1901         flags |= MONITOR_USE_PRETTY;
1902
1903     if (qemu_opt_get_bool(opts, "default", 0))
1904         flags |= MONITOR_IS_DEFAULT;
1905
1906     chardev = qemu_opt_get(opts, "chardev");
1907     chr = qemu_chr_find(chardev);
1908     if (chr == NULL) {
1909         fprintf(stderr, "chardev \"%s\" not found\n", chardev);
1910         exit(1);
1911     }
1912
1913     monitor_init(chr, flags);
1914     return 0;
1915 }
1916
1917 static void monitor_parse(const char *optarg, const char *mode)
1918 {
1919     static int monitor_device_index = 0;
1920     QemuOpts *opts;
1921     const char *p;
1922     char label[32];
1923     int def = 0;
1924
1925     if (strstart(optarg, "chardev:", &p)) {
1926         snprintf(label, sizeof(label), "%s", p);
1927     } else {
1928         snprintf(label, sizeof(label), "compat_monitor%d",
1929                  monitor_device_index);
1930         if (monitor_device_index == 0) {
1931             def = 1;
1932         }
1933         opts = qemu_chr_parse_compat(label, optarg);
1934         if (!opts) {
1935             fprintf(stderr, "parse error: %s\n", optarg);
1936             exit(1);
1937         }
1938     }
1939
1940     opts = qemu_opts_create(qemu_find_opts("mon"), label, 1);
1941     if (!opts) {
1942         fprintf(stderr, "duplicate chardev: %s\n", label);
1943         exit(1);
1944     }
1945     qemu_opt_set(opts, "mode", mode);
1946     qemu_opt_set(opts, "chardev", label);
1947     if (def)
1948         qemu_opt_set(opts, "default", "on");
1949     monitor_device_index++;
1950 }
1951
1952 struct device_config {
1953     enum {
1954         DEV_USB,       /* -usbdevice     */
1955         DEV_BT,        /* -bt            */
1956         DEV_SERIAL,    /* -serial        */
1957         DEV_PARALLEL,  /* -parallel      */
1958         DEV_VIRTCON,   /* -virtioconsole */
1959         DEV_DEBUGCON,  /* -debugcon */
1960     } type;
1961     const char *cmdline;
1962     QTAILQ_ENTRY(device_config) next;
1963 };
1964 QTAILQ_HEAD(, device_config) device_configs = QTAILQ_HEAD_INITIALIZER(device_configs);
1965
1966 static void add_device_config(int type, const char *cmdline)
1967 {
1968     struct device_config *conf;
1969
1970     conf = g_malloc0(sizeof(*conf));
1971     conf->type = type;
1972     conf->cmdline = cmdline;
1973     QTAILQ_INSERT_TAIL(&device_configs, conf, next);
1974 }
1975
1976 static int foreach_device_config(int type, int (*func)(const char *cmdline))
1977 {
1978     struct device_config *conf;
1979     int rc;
1980
1981     QTAILQ_FOREACH(conf, &device_configs, next) {
1982         if (conf->type != type)
1983             continue;
1984         rc = func(conf->cmdline);
1985         if (0 != rc)
1986             return rc;
1987     }
1988     return 0;
1989 }
1990
1991 static int serial_parse(const char *devname)
1992 {
1993     static int index = 0;
1994     char label[32];
1995
1996     if (strcmp(devname, "none") == 0)
1997         return 0;
1998     if (index == MAX_SERIAL_PORTS) {
1999         fprintf(stderr, "qemu: too many serial ports\n");
2000         exit(1);
2001     }
2002     snprintf(label, sizeof(label), "serial%d", index);
2003     serial_hds[index] = qemu_chr_new(label, devname, NULL);
2004     if (!serial_hds[index]) {
2005         fprintf(stderr, "qemu: could not open serial device '%s': %s\n",
2006                 devname, strerror(errno));
2007         return -1;
2008     }
2009     index++;
2010     return 0;
2011 }
2012
2013 static int parallel_parse(const char *devname)
2014 {
2015     static int index = 0;
2016     char label[32];
2017
2018     if (strcmp(devname, "none") == 0)
2019         return 0;
2020     if (index == MAX_PARALLEL_PORTS) {
2021         fprintf(stderr, "qemu: too many parallel ports\n");
2022         exit(1);
2023     }
2024     snprintf(label, sizeof(label), "parallel%d", index);
2025     parallel_hds[index] = qemu_chr_new(label, devname, NULL);
2026     if (!parallel_hds[index]) {
2027         fprintf(stderr, "qemu: could not open parallel device '%s': %s\n",
2028                 devname, strerror(errno));
2029         return -1;
2030     }
2031     index++;
2032     return 0;
2033 }
2034
2035 static int virtcon_parse(const char *devname)
2036 {
2037     QemuOptsList *device = qemu_find_opts("device");
2038     static int index = 0;
2039     char label[32];
2040     QemuOpts *bus_opts, *dev_opts;
2041
2042     if (strcmp(devname, "none") == 0)
2043         return 0;
2044     if (index == MAX_VIRTIO_CONSOLES) {
2045         fprintf(stderr, "qemu: too many virtio consoles\n");
2046         exit(1);
2047     }
2048
2049     bus_opts = qemu_opts_create(device, NULL, 0);
2050     qemu_opt_set(bus_opts, "driver", "virtio-serial");
2051
2052     dev_opts = qemu_opts_create(device, NULL, 0);
2053     qemu_opt_set(dev_opts, "driver", "virtconsole");
2054
2055     snprintf(label, sizeof(label), "virtcon%d", index);
2056     virtcon_hds[index] = qemu_chr_new(label, devname, NULL);
2057     if (!virtcon_hds[index]) {
2058         fprintf(stderr, "qemu: could not open virtio console '%s': %s\n",
2059                 devname, strerror(errno));
2060         return -1;
2061     }
2062     qemu_opt_set(dev_opts, "chardev", label);
2063
2064     index++;
2065     return 0;
2066 }
2067
2068 static int debugcon_parse(const char *devname)
2069 {
2070     QemuOpts *opts;
2071
2072     if (!qemu_chr_new("debugcon", devname, NULL)) {
2073         exit(1);
2074     }
2075     opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1);
2076     if (!opts) {
2077         fprintf(stderr, "qemu: already have a debugcon device\n");
2078         exit(1);
2079     }
2080     qemu_opt_set(opts, "driver", "isa-debugcon");
2081     qemu_opt_set(opts, "chardev", "debugcon");
2082     return 0;
2083 }
2084
2085 static QEMUMachine *machine_parse(const char *name)
2086 {
2087     QEMUMachine *m, *machine = NULL;
2088
2089     if (name) {
2090         machine = find_machine(name);
2091     }
2092     if (machine) {
2093         return machine;
2094     }
2095     printf("Supported machines are:\n");
2096     for (m = first_machine; m != NULL; m = m->next) {
2097         if (m->alias) {
2098             printf("%-10s %s (alias of %s)\n", m->alias, m->desc, m->name);
2099         }
2100         printf("%-10s %s%s\n", m->name, m->desc,
2101                m->is_default ? " (default)" : "");
2102     }
2103     exit(!name || *name != '?');
2104 }
2105
2106 static int tcg_init(void)
2107 {
2108     tcg_exec_init(tcg_tb_size * 1024 * 1024);
2109     return 0;
2110 }
2111
2112 static struct {
2113     const char *opt_name;
2114     const char *name;
2115     int (*available)(void);
2116     int (*init)(void);
2117     int *allowed;
2118 } accel_list[] = {
2119     { "tcg", "tcg", tcg_available, tcg_init, &tcg_allowed },
2120     { "xen", "Xen", xen_available, xen_init, &xen_allowed },
2121     { "kvm", "KVM", kvm_available, kvm_init, &kvm_allowed },
2122 };
2123
2124 static int configure_accelerator(void)
2125 {
2126     const char *p = NULL;
2127     char buf[10];
2128     int i, ret;
2129     bool accel_initalised = 0;
2130     bool init_failed = 0;
2131
2132     QemuOptsList *list = qemu_find_opts("machine");
2133     if (!QTAILQ_EMPTY(&list->head)) {
2134         p = qemu_opt_get(QTAILQ_FIRST(&list->head), "accel");
2135     }
2136
2137     if (p == NULL) {
2138         /* Use the default "accelerator", tcg */
2139         p = "tcg";
2140     }
2141
2142     while (!accel_initalised && *p != '\0') {
2143         if (*p == ':') {
2144             p++;
2145         }
2146         p = get_opt_name(buf, sizeof (buf), p, ':');
2147         for (i = 0; i < ARRAY_SIZE(accel_list); i++) {
2148             if (strcmp(accel_list[i].opt_name, buf) == 0) {
2149                 *(accel_list[i].allowed) = 1;
2150                 ret = accel_list[i].init();
2151                 if (ret < 0) {
2152                     init_failed = 1;
2153                     if (!accel_list[i].available()) {
2154                         printf("%s not supported for this target\n",
2155                                accel_list[i].name);
2156                     } else {
2157                         fprintf(stderr, "failed to initialize %s: %s\n",
2158                                 accel_list[i].name,
2159                                 strerror(-ret));
2160                     }
2161                     *(accel_list[i].allowed) = 0;
2162                 } else {
2163                     accel_initalised = 1;
2164                 }
2165                 break;
2166             }
2167         }
2168         if (i == ARRAY_SIZE(accel_list)) {
2169             fprintf(stderr, "\"%s\" accelerator does not exist.\n", buf);
2170         }
2171     }
2172
2173     if (!accel_initalised) {
2174         fprintf(stderr, "No accelerator found!\n");
2175         exit(1);
2176     }
2177
2178     if (init_failed) {
2179         fprintf(stderr, "Back to %s accelerator.\n", accel_list[i].name);
2180     }
2181
2182     return !accel_initalised;
2183 }
2184
2185 void qemu_add_exit_notifier(Notifier *notify)
2186 {
2187     notifier_list_add(&exit_notifiers, notify);
2188 }
2189
2190 void qemu_remove_exit_notifier(Notifier *notify)
2191 {
2192     notifier_list_remove(&exit_notifiers, notify);
2193 }
2194
2195 static void qemu_run_exit_notifiers(void)
2196 {
2197     notifier_list_notify(&exit_notifiers, NULL);
2198 }
2199
2200 void qemu_add_machine_init_done_notifier(Notifier *notify)
2201 {
2202     notifier_list_add(&machine_init_done_notifiers, notify);
2203 }
2204
2205 static void qemu_run_machine_init_done_notifiers(void)
2206 {
2207     notifier_list_notify(&machine_init_done_notifiers, NULL);
2208 }
2209
2210 static const QEMUOption *lookup_opt(int argc, char **argv,
2211                                     const char **poptarg, int *poptind)
2212 {
2213     const QEMUOption *popt;
2214     int optind = *poptind;
2215     char *r = argv[optind];
2216     const char *optarg;
2217
2218     loc_set_cmdline(argv, optind, 1);
2219     optind++;
2220     /* Treat --foo the same as -foo.  */
2221     if (r[1] == '-')
2222         r++;
2223     popt = qemu_options;
2224     for(;;) {
2225         if (!popt->name) {
2226             error_report("invalid option");
2227             exit(1);
2228         }
2229         if (!strcmp(popt->name, r + 1))
2230             break;
2231         popt++;
2232     }
2233     if (popt->flags & HAS_ARG) {
2234         if (optind >= argc) {
2235             error_report("requires an argument");
2236             exit(1);
2237         }
2238         optarg = argv[optind++];
2239         loc_set_cmdline(argv, optind - 2, 2);
2240     } else {
2241         optarg = NULL;
2242     }
2243
2244     *poptarg = optarg;
2245     *poptind = optind;
2246
2247     return popt;
2248 }
2249
2250 static gpointer malloc_and_trace(gsize n_bytes)
2251 {
2252     void *ptr = malloc(n_bytes);
2253     trace_g_malloc(n_bytes, ptr);
2254     return ptr;
2255 }
2256
2257 static gpointer realloc_and_trace(gpointer mem, gsize n_bytes)
2258 {
2259     void *ptr = realloc(mem, n_bytes);
2260     trace_g_realloc(mem, n_bytes, ptr);
2261     return ptr;
2262 }
2263
2264 static void free_and_trace(gpointer mem)
2265 {
2266     trace_g_free(mem);
2267     free(mem);
2268 }
2269
2270 int main(int argc, char **argv, char **envp)
2271 {
2272     const char *gdbstub_dev = NULL;
2273     int i;
2274     int snapshot, linux_boot;
2275     const char *icount_option = NULL;
2276     const char *initrd_filename;
2277     const char *kernel_filename, *kernel_cmdline;
2278     char boot_devices[33] = "cad"; /* default to HD->floppy->CD-ROM */
2279     DisplayState *ds;
2280     DisplayChangeListener *dcl;
2281     int cyls, heads, secs, translation;
2282     QemuOpts *hda_opts = NULL, *opts;
2283     QemuOptsList *olist;
2284     int optind;
2285     const char *optarg;
2286     const char *loadvm = NULL;
2287     QEMUMachine *machine;
2288     const char *cpu_model;
2289     const char *pid_file = NULL;
2290     const char *incoming = NULL;
2291 #ifdef CONFIG_VNC
2292     int show_vnc_port = 0;
2293 #endif
2294     int defconfig = 1;
2295     const char *log_mask = NULL;
2296     const char *log_file = NULL;
2297     GMemVTable mem_trace = {
2298         .malloc = malloc_and_trace,
2299         .realloc = realloc_and_trace,
2300         .free = free_and_trace,
2301     };
2302     const char *trace_events = NULL;
2303     const char *trace_file = NULL;
2304
2305     atexit(qemu_run_exit_notifiers);
2306     error_set_progname(argv[0]);
2307
2308     g_mem_set_vtable(&mem_trace);
2309     g_thread_init(NULL);
2310
2311     runstate_init();
2312
2313     init_clocks();
2314
2315     qemu_cache_utils_init(envp);
2316
2317     QLIST_INIT (&vm_change_state_head);
2318     os_setup_early_signal_handling();
2319
2320     module_call_init(MODULE_INIT_MACHINE);
2321     machine = find_default_machine();
2322     cpu_model = NULL;
2323     initrd_filename = NULL;
2324     ram_size = 0;
2325     snapshot = 0;
2326     kernel_filename = NULL;
2327     kernel_cmdline = "";
2328     cyls = heads = secs = 0;
2329     translation = BIOS_ATA_TRANSLATION_AUTO;
2330
2331     for (i = 0; i < MAX_NODES; i++) {
2332         node_mem[i] = 0;
2333         node_cpumask[i] = 0;
2334     }
2335
2336     nb_numa_nodes = 0;
2337     nb_nics = 0;
2338
2339     autostart= 1;
2340
2341     /* first pass of option parsing */
2342     optind = 1;
2343     while (optind < argc) {
2344         if (argv[optind][0] != '-') {
2345             /* disk image */
2346             optind++;
2347             continue;
2348         } else {
2349             const QEMUOption *popt;
2350
2351             popt = lookup_opt(argc, argv, &optarg, &optind);
2352             switch (popt->index) {
2353             case QEMU_OPTION_nodefconfig:
2354                 defconfig=0;
2355                 break;
2356             }
2357         }
2358     }
2359
2360     if (defconfig) {
2361         int ret;
2362
2363         ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2364         if (ret < 0 && ret != -ENOENT) {
2365             exit(1);
2366         }
2367
2368         ret = qemu_read_config_file(arch_config_name);
2369         if (ret < 0 && ret != -ENOENT) {
2370             exit(1);
2371         }
2372     }
2373     cpudef_init();
2374
2375     /* second pass of option parsing */
2376     optind = 1;
2377     for(;;) {
2378         if (optind >= argc)
2379             break;
2380         if (argv[optind][0] != '-') {
2381             hda_opts = drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
2382         } else {
2383             const QEMUOption *popt;
2384
2385             popt = lookup_opt(argc, argv, &optarg, &optind);
2386             if (!(popt->arch_mask & arch_type)) {
2387                 printf("Option %s not supported for this target\n", popt->name);
2388                 exit(1);
2389             }
2390             switch(popt->index) {
2391             case QEMU_OPTION_M:
2392                 machine = machine_parse(optarg);
2393                 break;
2394             case QEMU_OPTION_cpu:
2395                 /* hw initialization will check this */
2396                 if (*optarg == '?') {
2397                     list_cpus(stdout, &fprintf, optarg);
2398                     exit(0);
2399                 } else {
2400                     cpu_model = optarg;
2401                 }
2402                 break;
2403             case QEMU_OPTION_initrd:
2404                 initrd_filename = optarg;
2405                 break;
2406             case QEMU_OPTION_hda:
2407                 {
2408                     char buf[256];
2409                     if (cyls == 0)
2410                         snprintf(buf, sizeof(buf), "%s", HD_OPTS);
2411                     else
2412                         snprintf(buf, sizeof(buf),
2413                                  "%s,cyls=%d,heads=%d,secs=%d%s",
2414                                  HD_OPTS , cyls, heads, secs,
2415                                  translation == BIOS_ATA_TRANSLATION_LBA ?
2416                                  ",trans=lba" :
2417                                  translation == BIOS_ATA_TRANSLATION_NONE ?
2418                                  ",trans=none" : "");
2419                     drive_add(IF_DEFAULT, 0, optarg, buf);
2420                     break;
2421                 }
2422             case QEMU_OPTION_hdb:
2423             case QEMU_OPTION_hdc:
2424             case QEMU_OPTION_hdd:
2425                 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
2426                           HD_OPTS);
2427                 break;
2428             case QEMU_OPTION_drive:
2429                 if (drive_def(optarg) == NULL) {
2430                     exit(1);
2431                 }
2432                 break;
2433             case QEMU_OPTION_set:
2434                 if (qemu_set_option(optarg) != 0)
2435                     exit(1);
2436                 break;
2437             case QEMU_OPTION_global:
2438                 if (qemu_global_option(optarg) != 0)
2439                     exit(1);
2440                 break;
2441             case QEMU_OPTION_mtdblock:
2442                 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
2443                 break;
2444             case QEMU_OPTION_sd:
2445                 drive_add(IF_SD, 0, optarg, SD_OPTS);
2446                 break;
2447             case QEMU_OPTION_pflash:
2448                 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
2449                 break;
2450             case QEMU_OPTION_snapshot:
2451                 snapshot = 1;
2452                 break;
2453             case QEMU_OPTION_hdachs:
2454                 {
2455                     const char *p;
2456                     p = optarg;
2457                     cyls = strtol(p, (char **)&p, 0);
2458                     if (cyls < 1 || cyls > 16383)
2459                         goto chs_fail;
2460                     if (*p != ',')
2461                         goto chs_fail;
2462                     p++;
2463                     heads = strtol(p, (char **)&p, 0);
2464                     if (heads < 1 || heads > 16)
2465                         goto chs_fail;
2466                     if (*p != ',')
2467                         goto chs_fail;
2468                     p++;
2469                     secs = strtol(p, (char **)&p, 0);
2470                     if (secs < 1 || secs > 63)
2471                         goto chs_fail;
2472                     if (*p == ',') {
2473                         p++;
2474                         if (!strcmp(p, "none"))
2475                             translation = BIOS_ATA_TRANSLATION_NONE;
2476                         else if (!strcmp(p, "lba"))
2477                             translation = BIOS_ATA_TRANSLATION_LBA;
2478                         else if (!strcmp(p, "auto"))
2479                             translation = BIOS_ATA_TRANSLATION_AUTO;
2480                         else
2481                             goto chs_fail;
2482                     } else if (*p != '\0') {
2483                     chs_fail:
2484                         fprintf(stderr, "qemu: invalid physical CHS format\n");
2485                         exit(1);
2486                     }
2487                     if (hda_opts != NULL) {
2488                         char num[16];
2489                         snprintf(num, sizeof(num), "%d", cyls);
2490                         qemu_opt_set(hda_opts, "cyls", num);
2491                         snprintf(num, sizeof(num), "%d", heads);
2492                         qemu_opt_set(hda_opts, "heads", num);
2493                         snprintf(num, sizeof(num), "%d", secs);
2494                         qemu_opt_set(hda_opts, "secs", num);
2495                         if (translation == BIOS_ATA_TRANSLATION_LBA)
2496                             qemu_opt_set(hda_opts, "trans", "lba");
2497                         if (translation == BIOS_ATA_TRANSLATION_NONE)
2498                             qemu_opt_set(hda_opts, "trans", "none");
2499                     }
2500                 }
2501                 break;
2502             case QEMU_OPTION_numa:
2503                 if (nb_numa_nodes >= MAX_NODES) {
2504                     fprintf(stderr, "qemu: too many NUMA nodes\n");
2505                     exit(1);
2506                 }
2507                 numa_add(optarg);
2508                 break;
2509             case QEMU_OPTION_display:
2510                 display_type = select_display(optarg);
2511                 break;
2512             case QEMU_OPTION_nographic:
2513                 display_type = DT_NOGRAPHIC;
2514                 break;
2515             case QEMU_OPTION_curses:
2516 #ifdef CONFIG_CURSES
2517                 display_type = DT_CURSES;
2518 #else
2519                 fprintf(stderr, "Curses support is disabled\n");
2520                 exit(1);
2521 #endif
2522                 break;
2523             case QEMU_OPTION_portrait:
2524                 graphic_rotate = 90;
2525                 break;
2526             case QEMU_OPTION_rotate:
2527                 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
2528                 if (graphic_rotate != 0 && graphic_rotate != 90 &&
2529                     graphic_rotate != 180 && graphic_rotate != 270) {
2530                     fprintf(stderr,
2531                         "qemu: only 90, 180, 270 deg rotation is available\n");
2532                     exit(1);
2533                 }
2534                 break;
2535             case QEMU_OPTION_kernel:
2536                 kernel_filename = optarg;
2537                 break;
2538             case QEMU_OPTION_append:
2539                 kernel_cmdline = optarg;
2540                 break;
2541             case QEMU_OPTION_cdrom:
2542                 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
2543                 break;
2544             case QEMU_OPTION_boot:
2545                 {
2546                     static const char * const params[] = {
2547                         "order", "once", "menu",
2548                         "splash", "splash-time", NULL
2549                     };
2550                     char buf[sizeof(boot_devices)];
2551                     char *standard_boot_devices;
2552                     int legacy = 0;
2553
2554                     if (!strchr(optarg, '=')) {
2555                         legacy = 1;
2556                         pstrcpy(buf, sizeof(buf), optarg);
2557                     } else if (check_params(buf, sizeof(buf), params, optarg) < 0) {
2558                         fprintf(stderr,
2559                                 "qemu: unknown boot parameter '%s' in '%s'\n",
2560                                 buf, optarg);
2561                         exit(1);
2562                     }
2563
2564                     if (legacy ||
2565                         get_param_value(buf, sizeof(buf), "order", optarg)) {
2566                         validate_bootdevices(buf);
2567                         pstrcpy(boot_devices, sizeof(boot_devices), buf);
2568                     }
2569                     if (!legacy) {
2570                         if (get_param_value(buf, sizeof(buf),
2571                                             "once", optarg)) {
2572                             validate_bootdevices(buf);
2573                             standard_boot_devices = g_strdup(boot_devices);
2574                             pstrcpy(boot_devices, sizeof(boot_devices), buf);
2575                             qemu_register_reset(restore_boot_devices,
2576                                                 standard_boot_devices);
2577                         }
2578                         if (get_param_value(buf, sizeof(buf),
2579                                             "menu", optarg)) {
2580                             if (!strcmp(buf, "on")) {
2581                                 boot_menu = 1;
2582                             } else if (!strcmp(buf, "off")) {
2583                                 boot_menu = 0;
2584                             } else {
2585                                 fprintf(stderr,
2586                                         "qemu: invalid option value '%s'\n",
2587                                         buf);
2588                                 exit(1);
2589                             }
2590                         }
2591                         qemu_opts_parse(qemu_find_opts("boot-opts"),
2592                                         optarg, 0);
2593                     }
2594                 }
2595                 break;
2596             case QEMU_OPTION_fda:
2597             case QEMU_OPTION_fdb:
2598                 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
2599                           optarg, FD_OPTS);
2600                 break;
2601             case QEMU_OPTION_no_fd_bootchk:
2602                 fd_bootchk = 0;
2603                 break;
2604             case QEMU_OPTION_netdev:
2605                 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
2606                     exit(1);
2607                 }
2608                 break;
2609             case QEMU_OPTION_net:
2610                 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
2611                     exit(1);
2612                 }
2613                 break;
2614 #ifdef CONFIG_SLIRP
2615             case QEMU_OPTION_tftp:
2616                 legacy_tftp_prefix = optarg;
2617                 break;
2618             case QEMU_OPTION_bootp:
2619                 legacy_bootp_filename = optarg;
2620                 break;
2621             case QEMU_OPTION_redir:
2622                 if (net_slirp_redir(optarg) < 0)
2623                     exit(1);
2624                 break;
2625 #endif
2626             case QEMU_OPTION_bt:
2627                 add_device_config(DEV_BT, optarg);
2628                 break;
2629             case QEMU_OPTION_audio_help:
2630                 if (!(audio_available())) {
2631                     printf("Option %s not supported for this target\n", popt->name);
2632                     exit(1);
2633                 }
2634                 AUD_help ();
2635                 exit (0);
2636                 break;
2637             case QEMU_OPTION_soundhw:
2638                 if (!(audio_available())) {
2639                     printf("Option %s not supported for this target\n", popt->name);
2640                     exit(1);
2641                 }
2642                 select_soundhw (optarg);
2643                 break;
2644             case QEMU_OPTION_h:
2645                 help(0);
2646                 break;
2647             case QEMU_OPTION_version:
2648                 version();
2649                 exit(0);
2650                 break;
2651             case QEMU_OPTION_m: {
2652                 int64_t value;
2653
2654                 value = strtosz(optarg, NULL);
2655                 if (value < 0) {
2656                     fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
2657                     exit(1);
2658                 }
2659
2660                 if (value != (uint64_t)(ram_addr_t)value) {
2661                     fprintf(stderr, "qemu: ram size too large\n");
2662                     exit(1);
2663                 }
2664                 ram_size = value;
2665                 break;
2666             }
2667             case QEMU_OPTION_mempath:
2668                 mem_path = optarg;
2669                 break;
2670 #ifdef MAP_POPULATE
2671             case QEMU_OPTION_mem_prealloc:
2672                 mem_prealloc = 1;
2673                 break;
2674 #endif
2675             case QEMU_OPTION_d:
2676                 log_mask = optarg;
2677                 break;
2678             case QEMU_OPTION_D:
2679                 log_file = optarg;
2680                 break;
2681             case QEMU_OPTION_s:
2682                 gdbstub_dev = "tcp::" DEFAULT_GDBSTUB_PORT;
2683                 break;
2684             case QEMU_OPTION_gdb:
2685                 gdbstub_dev = optarg;
2686                 break;
2687             case QEMU_OPTION_L:
2688                 data_dir = optarg;
2689                 break;
2690             case QEMU_OPTION_bios:
2691                 bios_name = optarg;
2692                 break;
2693             case QEMU_OPTION_singlestep:
2694                 singlestep = 1;
2695                 break;
2696             case QEMU_OPTION_S:
2697                 autostart = 0;
2698                 break;
2699             case QEMU_OPTION_k:
2700                 keyboard_layout = optarg;
2701                 break;
2702             case QEMU_OPTION_localtime:
2703                 rtc_utc = 0;
2704                 break;
2705             case QEMU_OPTION_vga:
2706                 select_vgahw (optarg);
2707                 break;
2708             case QEMU_OPTION_g:
2709                 {
2710                     const char *p;
2711                     int w, h, depth;
2712                     p = optarg;
2713                     w = strtol(p, (char **)&p, 10);
2714                     if (w <= 0) {
2715                     graphic_error:
2716                         fprintf(stderr, "qemu: invalid resolution or depth\n");
2717                         exit(1);
2718                     }
2719                     if (*p != 'x')
2720                         goto graphic_error;
2721                     p++;
2722                     h = strtol(p, (char **)&p, 10);
2723                     if (h <= 0)
2724                         goto graphic_error;
2725                     if (*p == 'x') {
2726                         p++;
2727                         depth = strtol(p, (char **)&p, 10);
2728                         if (depth != 8 && depth != 15 && depth != 16 &&
2729                             depth != 24 && depth != 32)
2730                             goto graphic_error;
2731                     } else if (*p == '\0') {
2732                         depth = graphic_depth;
2733                     } else {
2734                         goto graphic_error;
2735                     }
2736
2737                     graphic_width = w;
2738                     graphic_height = h;
2739                     graphic_depth = depth;
2740                 }
2741                 break;
2742             case QEMU_OPTION_echr:
2743                 {
2744                     char *r;
2745                     term_escape_char = strtol(optarg, &r, 0);
2746                     if (r == optarg)
2747                         printf("Bad argument to echr\n");
2748                     break;
2749                 }
2750             case QEMU_OPTION_monitor:
2751                 monitor_parse(optarg, "readline");
2752                 default_monitor = 0;
2753                 break;
2754             case QEMU_OPTION_qmp:
2755                 monitor_parse(optarg, "control");
2756                 default_monitor = 0;
2757                 break;
2758             case QEMU_OPTION_mon:
2759                 opts = qemu_opts_parse(qemu_find_opts("mon"), optarg, 1);
2760                 if (!opts) {
2761                     exit(1);
2762                 }
2763                 default_monitor = 0;
2764                 break;
2765             case QEMU_OPTION_chardev:
2766                 opts = qemu_opts_parse(qemu_find_opts("chardev"), optarg, 1);
2767                 if (!opts) {
2768                     exit(1);
2769                 }
2770                 break;
2771             case QEMU_OPTION_fsdev:
2772                 olist = qemu_find_opts("fsdev");
2773                 if (!olist) {
2774                     fprintf(stderr, "fsdev is not supported by this qemu build.\n");
2775                     exit(1);
2776                 }
2777                 opts = qemu_opts_parse(olist, optarg, 1);
2778                 if (!opts) {
2779                     fprintf(stderr, "parse error: %s\n", optarg);
2780                     exit(1);
2781                 }
2782                 break;
2783             case QEMU_OPTION_virtfs: {
2784                 QemuOpts *fsdev;
2785                 QemuOpts *device;
2786
2787                 olist = qemu_find_opts("virtfs");
2788                 if (!olist) {
2789                     fprintf(stderr, "virtfs is not supported by this qemu build.\n");
2790                     exit(1);
2791                 }
2792                 opts = qemu_opts_parse(olist, optarg, 1);
2793                 if (!opts) {
2794                     fprintf(stderr, "parse error: %s\n", optarg);
2795                     exit(1);
2796                 }
2797
2798                 if (qemu_opt_get(opts, "fstype") == NULL ||
2799                         qemu_opt_get(opts, "mount_tag") == NULL ||
2800                         qemu_opt_get(opts, "path") == NULL ||
2801                         qemu_opt_get(opts, "security_model") == NULL) {
2802                     fprintf(stderr, "Usage: -virtfs fstype,path=/share_path/,"
2803                             "security_model=[mapped|passthrough|none],"
2804                             "mount_tag=tag.\n");
2805                     exit(1);
2806                 }
2807
2808                 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
2809                                          qemu_opt_get(opts, "mount_tag"), 1);
2810                 if (!fsdev) {
2811                     fprintf(stderr, "duplicate fsdev id: %s\n",
2812                             qemu_opt_get(opts, "mount_tag"));
2813                     exit(1);
2814                 }
2815                 qemu_opt_set(fsdev, "fstype", qemu_opt_get(opts, "fstype"));
2816                 qemu_opt_set(fsdev, "path", qemu_opt_get(opts, "path"));
2817                 qemu_opt_set(fsdev, "security_model",
2818                              qemu_opt_get(opts, "security_model"));
2819
2820                 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0);
2821                 qemu_opt_set(device, "driver", "virtio-9p-pci");
2822                 qemu_opt_set(device, "fsdev",
2823                              qemu_opt_get(opts, "mount_tag"));
2824                 qemu_opt_set(device, "mount_tag",
2825                              qemu_opt_get(opts, "mount_tag"));
2826                 break;
2827             }
2828             case QEMU_OPTION_serial:
2829                 add_device_config(DEV_SERIAL, optarg);
2830                 default_serial = 0;
2831                 if (strncmp(optarg, "mon:", 4) == 0) {
2832                     default_monitor = 0;
2833                 }
2834                 break;
2835             case QEMU_OPTION_watchdog:
2836                 if (watchdog) {
2837                     fprintf(stderr,
2838                             "qemu: only one watchdog option may be given\n");
2839                     return 1;
2840                 }
2841                 watchdog = optarg;
2842                 break;
2843             case QEMU_OPTION_watchdog_action:
2844                 if (select_watchdog_action(optarg) == -1) {
2845                     fprintf(stderr, "Unknown -watchdog-action parameter\n");
2846                     exit(1);
2847                 }
2848                 break;
2849             case QEMU_OPTION_virtiocon:
2850                 add_device_config(DEV_VIRTCON, optarg);
2851                 default_virtcon = 0;
2852                 if (strncmp(optarg, "mon:", 4) == 0) {
2853                     default_monitor = 0;
2854                 }
2855                 break;
2856             case QEMU_OPTION_parallel:
2857                 add_device_config(DEV_PARALLEL, optarg);
2858                 default_parallel = 0;
2859                 if (strncmp(optarg, "mon:", 4) == 0) {
2860                     default_monitor = 0;
2861                 }
2862                 break;
2863             case QEMU_OPTION_debugcon:
2864                 add_device_config(DEV_DEBUGCON, optarg);
2865                 break;
2866             case QEMU_OPTION_loadvm:
2867                 loadvm = optarg;
2868                 break;
2869             case QEMU_OPTION_full_screen:
2870                 full_screen = 1;
2871                 break;
2872 #ifdef CONFIG_SDL
2873             case QEMU_OPTION_no_frame:
2874                 no_frame = 1;
2875                 break;
2876             case QEMU_OPTION_alt_grab:
2877                 alt_grab = 1;
2878                 break;
2879             case QEMU_OPTION_ctrl_grab:
2880                 ctrl_grab = 1;
2881                 break;
2882             case QEMU_OPTION_no_quit:
2883                 no_quit = 1;
2884                 break;
2885             case QEMU_OPTION_sdl:
2886                 display_type = DT_SDL;
2887                 break;
2888 #else
2889             case QEMU_OPTION_no_frame:
2890             case QEMU_OPTION_alt_grab:
2891             case QEMU_OPTION_ctrl_grab:
2892             case QEMU_OPTION_no_quit:
2893             case QEMU_OPTION_sdl:
2894                 fprintf(stderr, "SDL support is disabled\n");
2895                 exit(1);
2896 #endif
2897             case QEMU_OPTION_pidfile:
2898                 pid_file = optarg;
2899                 break;
2900             case QEMU_OPTION_win2k_hack:
2901                 win2k_install_hack = 1;
2902                 break;
2903             case QEMU_OPTION_rtc_td_hack:
2904                 rtc_td_hack = 1;
2905                 break;
2906             case QEMU_OPTION_acpitable:
2907                 do_acpitable_option(optarg);
2908                 break;
2909             case QEMU_OPTION_smbios:
2910                 do_smbios_option(optarg);
2911                 break;
2912             case QEMU_OPTION_enable_kvm:
2913                 olist = qemu_find_opts("machine");
2914                 qemu_opts_reset(olist);
2915                 qemu_opts_parse(olist, "accel=kvm", 0);
2916                 break;
2917             case QEMU_OPTION_machine:
2918                 olist = qemu_find_opts("machine");
2919                 qemu_opts_reset(olist);
2920                 opts = qemu_opts_parse(olist, optarg, 1);
2921                 if (!opts) {
2922                     fprintf(stderr, "parse error: %s\n", optarg);
2923                     exit(1);
2924                 }
2925                 optarg = qemu_opt_get(opts, "type");
2926                 if (optarg) {
2927                     machine = machine_parse(optarg);
2928                 }
2929                 break;
2930             case QEMU_OPTION_usb:
2931                 usb_enabled = 1;
2932                 break;
2933             case QEMU_OPTION_usbdevice:
2934                 usb_enabled = 1;
2935                 add_device_config(DEV_USB, optarg);
2936                 break;
2937             case QEMU_OPTION_device:
2938                 if (!qemu_opts_parse(qemu_find_opts("device"), optarg, 1)) {
2939                     exit(1);
2940                 }
2941                 break;
2942             case QEMU_OPTION_smp:
2943                 smp_parse(optarg);
2944                 if (smp_cpus < 1) {
2945                     fprintf(stderr, "Invalid number of CPUs\n");
2946                     exit(1);
2947                 }
2948                 if (max_cpus < smp_cpus) {
2949                     fprintf(stderr, "maxcpus must be equal to or greater than "
2950                             "smp\n");
2951                     exit(1);
2952                 }
2953                 if (max_cpus > 255) {
2954                     fprintf(stderr, "Unsupported number of maxcpus\n");
2955                     exit(1);
2956                 }
2957                 break;
2958             case QEMU_OPTION_vnc:
2959 #ifdef CONFIG_VNC
2960                 display_remote++;
2961                 vnc_display = optarg;
2962 #else
2963                 fprintf(stderr, "VNC support is disabled\n");
2964                 exit(1);
2965 #endif
2966                 break;
2967             case QEMU_OPTION_no_acpi:
2968                 acpi_enabled = 0;
2969                 break;
2970             case QEMU_OPTION_no_hpet:
2971                 no_hpet = 1;
2972                 break;
2973             case QEMU_OPTION_balloon:
2974                 if (balloon_parse(optarg) < 0) {
2975                     fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
2976                     exit(1);
2977                 }
2978                 break;
2979             case QEMU_OPTION_no_reboot:
2980                 no_reboot = 1;
2981                 break;
2982             case QEMU_OPTION_no_shutdown:
2983                 no_shutdown = 1;
2984                 break;
2985             case QEMU_OPTION_show_cursor:
2986                 cursor_hide = 0;
2987                 break;
2988             case QEMU_OPTION_uuid:
2989                 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
2990                     fprintf(stderr, "Fail to parse UUID string."
2991                             " Wrong format.\n");
2992                     exit(1);
2993                 }
2994                 break;
2995             case QEMU_OPTION_option_rom:
2996                 if (nb_option_roms >= MAX_OPTION_ROMS) {
2997                     fprintf(stderr, "Too many option ROMs\n");
2998                     exit(1);
2999                 }
3000                 opts = qemu_opts_parse(qemu_find_opts("option-rom"), optarg, 1);
3001                 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3002                 option_rom[nb_option_roms].bootindex =
3003                     qemu_opt_get_number(opts, "bootindex", -1);
3004                 if (!option_rom[nb_option_roms].name) {
3005                     fprintf(stderr, "Option ROM file is not specified\n");
3006                     exit(1);
3007                 }
3008                 nb_option_roms++;
3009                 break;
3010             case QEMU_OPTION_semihosting:
3011                 semihosting_enabled = 1;
3012                 break;
3013             case QEMU_OPTION_name:
3014                 qemu_name = g_strdup(optarg);
3015                  {
3016                      char *p = strchr(qemu_name, ',');
3017                      if (p != NULL) {
3018                         *p++ = 0;
3019                         if (strncmp(p, "process=", 8)) {
3020                             fprintf(stderr, "Unknown subargument %s to -name\n", p);
3021                             exit(1);
3022                         }
3023                         p += 8;
3024                         os_set_proc_name(p);
3025                      }
3026                  }
3027                 break;
3028             case QEMU_OPTION_prom_env:
3029                 if (nb_prom_envs >= MAX_PROM_ENVS) {
3030                     fprintf(stderr, "Too many prom variables\n");
3031                     exit(1);
3032                 }
3033                 prom_envs[nb_prom_envs] = optarg;
3034                 nb_prom_envs++;
3035                 break;
3036             case QEMU_OPTION_old_param:
3037                 old_param = 1;
3038                 break;
3039             case QEMU_OPTION_clock:
3040                 configure_alarms(optarg);
3041                 break;
3042             case QEMU_OPTION_startdate:
3043                 configure_rtc_date_offset(optarg, 1);
3044                 break;
3045             case QEMU_OPTION_rtc:
3046                 opts = qemu_opts_parse(qemu_find_opts("rtc"), optarg, 0);
3047                 if (!opts) {
3048                     exit(1);
3049                 }
3050                 configure_rtc(opts);
3051                 break;
3052             case QEMU_OPTION_tb_size:
3053                 tcg_tb_size = strtol(optarg, NULL, 0);
3054                 if (tcg_tb_size < 0) {
3055                     tcg_tb_size = 0;
3056                 }
3057                 break;
3058             case QEMU_OPTION_icount:
3059                 icount_option = optarg;
3060                 break;
3061             case QEMU_OPTION_incoming:
3062                 incoming = optarg;
3063                 break;
3064             case QEMU_OPTION_nodefaults:
3065                 default_serial = 0;
3066                 default_parallel = 0;
3067                 default_virtcon = 0;
3068                 default_monitor = 0;
3069                 default_vga = 0;
3070                 default_net = 0;
3071                 default_floppy = 0;
3072                 default_cdrom = 0;
3073                 default_sdcard = 0;
3074                 break;
3075             case QEMU_OPTION_xen_domid:
3076                 if (!(xen_available())) {
3077                     printf("Option %s not supported for this target\n", popt->name);
3078                     exit(1);
3079                 }
3080                 xen_domid = atoi(optarg);
3081                 break;
3082             case QEMU_OPTION_xen_create:
3083                 if (!(xen_available())) {
3084                     printf("Option %s not supported for this target\n", popt->name);
3085                     exit(1);
3086                 }
3087                 xen_mode = XEN_CREATE;
3088                 break;
3089             case QEMU_OPTION_xen_attach:
3090                 if (!(xen_available())) {
3091                     printf("Option %s not supported for this target\n", popt->name);
3092                     exit(1);
3093                 }
3094                 xen_mode = XEN_ATTACH;
3095                 break;
3096             case QEMU_OPTION_trace:
3097             {
3098                 opts = qemu_opts_parse(qemu_find_opts("trace"), optarg, 0);
3099                 if (!opts) {
3100                     exit(1);
3101                 }
3102                 trace_events = qemu_opt_get(opts, "events");
3103                 trace_file = qemu_opt_get(opts, "file");
3104                 break;
3105             }
3106             case QEMU_OPTION_readconfig:
3107                 {
3108                     int ret = qemu_read_config_file(optarg);
3109                     if (ret < 0) {
3110                         fprintf(stderr, "read config %s: %s\n", optarg,
3111                             strerror(-ret));
3112                         exit(1);
3113                     }
3114                     break;
3115                 }
3116             case QEMU_OPTION_spice:
3117                 olist = qemu_find_opts("spice");
3118                 if (!olist) {
3119                     fprintf(stderr, "spice is not supported by this qemu build.\n");
3120                     exit(1);
3121                 }
3122                 opts = qemu_opts_parse(olist, optarg, 0);
3123                 if (!opts) {
3124                     fprintf(stderr, "parse error: %s\n", optarg);
3125                     exit(1);
3126                 }
3127                 break;
3128             case QEMU_OPTION_writeconfig:
3129                 {
3130                     FILE *fp;
3131                     if (strcmp(optarg, "-") == 0) {
3132                         fp = stdout;
3133                     } else {
3134                         fp = fopen(optarg, "w");
3135                         if (fp == NULL) {
3136                             fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
3137                             exit(1);
3138                         }
3139                     }
3140                     qemu_config_write(fp);
3141                     fclose(fp);
3142                     break;
3143                 }
3144             default:
3145                 os_parse_cmd_args(popt->index, optarg);
3146             }
3147         }
3148     }
3149     loc_set_none();
3150
3151     /* Open the logfile at this point, if necessary. We can't open the logfile
3152      * when encountering either of the logging options (-d or -D) because the
3153      * other one may be encountered later on the command line, changing the
3154      * location or level of logging.
3155      */
3156     if (log_mask) {
3157         if (log_file) {
3158             set_cpu_log_filename(log_file);
3159         }
3160         set_cpu_log(log_mask);
3161     }
3162
3163     if (!trace_backend_init(trace_events, trace_file)) {
3164         exit(1);
3165     }
3166
3167     /* If no data_dir is specified then try to find it relative to the
3168        executable path.  */
3169     if (!data_dir) {
3170         data_dir = os_find_datadir(argv[0]);
3171     }
3172     /* If all else fails use the install path specified when building. */
3173     if (!data_dir) {
3174         data_dir = CONFIG_QEMU_DATADIR;
3175     }
3176
3177     /*
3178      * Default to max_cpus = smp_cpus, in case the user doesn't
3179      * specify a max_cpus value.
3180      */
3181     if (!max_cpus)
3182         max_cpus = smp_cpus;
3183
3184     machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
3185     if (smp_cpus > machine->max_cpus) {
3186         fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
3187                 "supported by machine `%s' (%d)\n", smp_cpus,  machine->name,
3188                 machine->max_cpus);
3189         exit(1);
3190     }
3191
3192     /*
3193      * Get the default machine options from the machine if it is not already
3194      * specified either by the configuration file or by the command line.
3195      */
3196     if (machine->default_machine_opts) {
3197         QemuOptsList *list = qemu_find_opts("machine");
3198         const char *p = NULL;
3199
3200         if (!QTAILQ_EMPTY(&list->head)) {
3201             p = qemu_opt_get(QTAILQ_FIRST(&list->head), "accel");
3202         }
3203         if (p == NULL) {
3204             qemu_opts_reset(list);
3205             opts = qemu_opts_parse(list, machine->default_machine_opts, 0);
3206             if (!opts) {
3207                 fprintf(stderr, "parse error for machine %s: %s\n",
3208                         machine->name, machine->default_machine_opts);
3209                 exit(1);
3210             }
3211         }
3212     }
3213
3214     qemu_opts_foreach(qemu_find_opts("device"), default_driver_check, NULL, 0);
3215     qemu_opts_foreach(qemu_find_opts("global"), default_driver_check, NULL, 0);
3216
3217     if (machine->no_serial) {
3218         default_serial = 0;
3219     }
3220     if (machine->no_parallel) {
3221         default_parallel = 0;
3222     }
3223     if (!machine->use_virtcon) {
3224         default_virtcon = 0;
3225     }
3226     if (machine->no_vga) {
3227         default_vga = 0;
3228     }
3229     if (machine->no_floppy) {
3230         default_floppy = 0;
3231     }
3232     if (machine->no_cdrom) {
3233         default_cdrom = 0;
3234     }
3235     if (machine->no_sdcard) {
3236         default_sdcard = 0;
3237     }
3238
3239     if (display_type == DT_NOGRAPHIC) {
3240         if (default_parallel)
3241             add_device_config(DEV_PARALLEL, "null");
3242         if (default_serial && default_monitor) {
3243             add_device_config(DEV_SERIAL, "mon:stdio");
3244         } else if (default_virtcon && default_monitor) {
3245             add_device_config(DEV_VIRTCON, "mon:stdio");
3246         } else {
3247             if (default_serial)
3248                 add_device_config(DEV_SERIAL, "stdio");
3249             if (default_virtcon)
3250                 add_device_config(DEV_VIRTCON, "stdio");
3251             if (default_monitor)
3252                 monitor_parse("stdio", "readline");
3253         }
3254     } else {
3255         if (default_serial)
3256             add_device_config(DEV_SERIAL, "vc:80Cx24C");
3257         if (default_parallel)
3258             add_device_config(DEV_PARALLEL, "vc:80Cx24C");
3259         if (default_monitor)
3260             monitor_parse("vc:80Cx24C", "readline");
3261         if (default_virtcon)
3262             add_device_config(DEV_VIRTCON, "vc:80Cx24C");
3263     }
3264     if (default_vga)
3265         vga_interface_type = VGA_CIRRUS;
3266
3267     socket_init();
3268
3269     if (qemu_opts_foreach(qemu_find_opts("chardev"), chardev_init_func, NULL, 1) != 0)
3270         exit(1);
3271 #ifdef CONFIG_VIRTFS
3272     if (qemu_opts_foreach(qemu_find_opts("fsdev"), fsdev_init_func, NULL, 1) != 0) {
3273         exit(1);
3274     }
3275 #endif
3276
3277     os_daemonize();
3278
3279     if (pid_file && qemu_create_pidfile(pid_file) != 0) {
3280         os_pidfile_error();
3281         exit(1);
3282     }
3283
3284     /* init the memory */
3285     if (ram_size == 0) {
3286         ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
3287     }
3288
3289     configure_accelerator();
3290
3291     if (qemu_init_main_loop()) {
3292         fprintf(stderr, "qemu_init_main_loop failed\n");
3293         exit(1);
3294     }
3295     linux_boot = (kernel_filename != NULL);
3296
3297     if (!linux_boot && *kernel_cmdline != '\0') {
3298         fprintf(stderr, "-append only allowed with -kernel option\n");
3299         exit(1);
3300     }
3301
3302     if (!linux_boot && initrd_filename != NULL) {
3303         fprintf(stderr, "-initrd only allowed with -kernel option\n");
3304         exit(1);
3305     }
3306
3307     os_set_line_buffering();
3308
3309     if (init_timer_alarm() < 0) {
3310         fprintf(stderr, "could not initialize alarm timer\n");
3311         exit(1);
3312     }
3313     configure_icount(icount_option);
3314
3315     if (net_init_clients() < 0) {
3316         exit(1);
3317     }
3318
3319     /* init the bluetooth world */
3320     if (foreach_device_config(DEV_BT, bt_parse))
3321         exit(1);
3322
3323     if (!xen_enabled()) {
3324         /* On 32-bit hosts, QEMU is limited by virtual address space */
3325         if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
3326             fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
3327             exit(1);
3328         }
3329     }
3330
3331     cpu_exec_init_all();
3332
3333     bdrv_init_with_whitelist();
3334
3335     blk_mig_init();
3336
3337     /* open the virtual block devices */
3338     if (snapshot)
3339         qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot, NULL, 0);
3340     if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func, &machine->use_scsi, 1) != 0)
3341         exit(1);
3342
3343     default_drive(default_cdrom, snapshot, machine->use_scsi,
3344                   IF_DEFAULT, 2, CDROM_OPTS);
3345     default_drive(default_floppy, snapshot, machine->use_scsi,
3346                   IF_FLOPPY, 0, FD_OPTS);
3347     default_drive(default_sdcard, snapshot, machine->use_scsi,
3348                   IF_SD, 0, SD_OPTS);
3349
3350     register_savevm_live(NULL, "ram", 0, 4, NULL, ram_save_live, NULL,
3351                          ram_load, NULL);
3352
3353     if (nb_numa_nodes > 0) {
3354         int i;
3355
3356         if (nb_numa_nodes > MAX_NODES) {
3357             nb_numa_nodes = MAX_NODES;
3358         }
3359
3360         /* If no memory size if given for any node, assume the default case
3361          * and distribute the available memory equally across all nodes
3362          */
3363         for (i = 0; i < nb_numa_nodes; i++) {
3364             if (node_mem[i] != 0)
3365                 break;
3366         }
3367         if (i == nb_numa_nodes) {
3368             uint64_t usedmem = 0;
3369
3370             /* On Linux, the each node's border has to be 8MB aligned,
3371              * the final node gets the rest.
3372              */
3373             for (i = 0; i < nb_numa_nodes - 1; i++) {
3374                 node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1);
3375                 usedmem += node_mem[i];
3376             }
3377             node_mem[i] = ram_size - usedmem;
3378         }
3379
3380         for (i = 0; i < nb_numa_nodes; i++) {
3381             if (node_cpumask[i] != 0)
3382                 break;
3383         }
3384         /* assigning the VCPUs round-robin is easier to implement, guest OSes
3385          * must cope with this anyway, because there are BIOSes out there in
3386          * real machines which also use this scheme.
3387          */
3388         if (i == nb_numa_nodes) {
3389             for (i = 0; i < smp_cpus; i++) {
3390                 node_cpumask[i % nb_numa_nodes] |= 1 << i;
3391             }
3392         }
3393     }
3394
3395     if (qemu_opts_foreach(qemu_find_opts("mon"), mon_init_func, NULL, 1) != 0) {
3396         exit(1);
3397     }
3398
3399     if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
3400         exit(1);
3401     if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
3402         exit(1);
3403     if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
3404         exit(1);
3405     if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
3406         exit(1);
3407
3408     module_call_init(MODULE_INIT_DEVICE);
3409
3410     if (qemu_opts_foreach(qemu_find_opts("device"), device_help_func, NULL, 0) != 0)
3411         exit(0);
3412
3413     if (watchdog) {
3414         i = select_watchdog(watchdog);
3415         if (i > 0)
3416             exit (i == 1 ? 1 : 0);
3417     }
3418
3419     if (machine->compat_props) {
3420         qdev_prop_register_global_list(machine->compat_props);
3421     }
3422     qemu_add_globals();
3423
3424     machine->init(ram_size, boot_devices,
3425                   kernel_filename, kernel_cmdline, initrd_filename, cpu_model);
3426
3427     cpu_synchronize_all_post_init();
3428
3429     set_numa_modes();
3430
3431     current_machine = machine;
3432
3433     /* init USB devices */
3434     if (usb_enabled) {
3435         if (foreach_device_config(DEV_USB, usb_parse) < 0)
3436             exit(1);
3437     }
3438
3439     /* init generic devices */
3440     if (qemu_opts_foreach(qemu_find_opts("device"), device_init_func, NULL, 1) != 0)
3441         exit(1);
3442
3443     net_check_clients();
3444
3445     /* just use the first displaystate for the moment */
3446     ds = get_displaystate();
3447
3448     if (using_spice)
3449         display_remote++;
3450     if (display_type == DT_DEFAULT && !display_remote) {
3451 #if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
3452         display_type = DT_SDL;
3453 #elif defined(CONFIG_VNC)
3454         vnc_display = "localhost:0,to=99";
3455         show_vnc_port = 1;
3456 #else
3457         display_type = DT_NONE;
3458 #endif
3459     }
3460
3461
3462     /* init local displays */
3463     switch (display_type) {
3464     case DT_NOGRAPHIC:
3465         break;
3466 #if defined(CONFIG_CURSES)
3467     case DT_CURSES:
3468         curses_display_init(ds, full_screen);
3469         break;
3470 #endif
3471 #if defined(CONFIG_SDL)
3472     case DT_SDL:
3473         sdl_display_init(ds, full_screen, no_frame);
3474         break;
3475 #elif defined(CONFIG_COCOA)
3476     case DT_SDL:
3477         cocoa_display_init(ds, full_screen);
3478         break;
3479 #endif
3480     default:
3481         break;
3482     }
3483
3484     /* must be after terminal init, SDL library changes signal handlers */
3485     os_setup_signal_handling();
3486
3487 #ifdef CONFIG_VNC
3488     /* init remote displays */
3489     if (vnc_display) {
3490         vnc_display_init(ds);
3491         if (vnc_display_open(ds, vnc_display) < 0)
3492             exit(1);
3493
3494         if (show_vnc_port) {
3495             printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
3496         }
3497     }
3498 #endif
3499 #ifdef CONFIG_SPICE
3500     if (using_spice && !qxl_enabled) {
3501         qemu_spice_display_init(ds);
3502     }
3503 #endif
3504
3505     /* display setup */
3506     dpy_resize(ds);
3507     dcl = ds->listeners;
3508     while (dcl != NULL) {
3509         if (dcl->dpy_refresh != NULL) {
3510             ds->gui_timer = qemu_new_timer_ms(rt_clock, gui_update, ds);
3511             qemu_mod_timer(ds->gui_timer, qemu_get_clock_ms(rt_clock));
3512             break;
3513         }
3514         dcl = dcl->next;
3515     }
3516     text_consoles_set_display(ds);
3517
3518     if (gdbstub_dev && gdbserver_start(gdbstub_dev) < 0) {
3519         fprintf(stderr, "qemu: could not open gdbserver on device '%s'\n",
3520                 gdbstub_dev);
3521         exit(1);
3522     }
3523
3524     qdev_machine_creation_done();
3525
3526     if (rom_load_all() != 0) {
3527         fprintf(stderr, "rom loading failed\n");
3528         exit(1);
3529     }
3530
3531     /* TODO: once all bus devices are qdevified, this should be done
3532      * when bus is created by qdev.c */
3533     qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
3534     qemu_run_machine_init_done_notifiers();
3535
3536     qemu_system_reset(VMRESET_SILENT);
3537     if (loadvm) {
3538         if (load_vmstate(loadvm) < 0) {
3539             autostart = 0;
3540         }
3541     }
3542
3543     if (incoming) {
3544         runstate_set(RUN_STATE_INMIGRATE);
3545         int ret = qemu_start_incoming_migration(incoming);
3546         if (ret < 0) {
3547             fprintf(stderr, "Migration failed. Exit code %s(%d), exiting.\n",
3548                     incoming, ret);
3549             exit(ret);
3550         }
3551     } else if (autostart) {
3552         vm_start();
3553     }
3554
3555     os_setup_post();
3556
3557     main_loop();
3558     quit_timers();
3559     net_cleanup();
3560     res_free();
3561
3562     return 0;
3563 }