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 static QEMUTimer *nographic_timer;
 252
 253 uint8_t qemu_uuid[16];
 254
 255 static QEMUBootSetHandler *boot_set_handler;
 256 static void *boot_set_opaque;
 257
 258 static NotifierList exit_notifiers =
 259     NOTIFIER_LIST_INITIALIZER(exit_notifiers);
 260
 261 static NotifierList machine_init_done_notifiers =
 262     NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
 263
 264 static int tcg_allowed = 1;
 265 int kvm_allowed = 0;
 266 int xen_allowed = 0;
 267 uint32_t xen_domid;
 268 enum xen_mode xen_mode = XEN_EMULATE;
 269 static int tcg_tb_size;
 270
 271 static int default_serial = 1;
 272 static int default_parallel = 1;
 273 static int default_virtcon = 1;
 274 static int default_monitor = 1;
 275 static int default_vga = 1;
 276 static int default_floppy = 1;
 277 static int default_cdrom = 1;
 278 static int default_sdcard = 1;
 279
 280 static struct {
 281     const char *driver;
 282     int *flag;
 283 } default_list[] = {
 284     { .driver = "isa-serial",           .flag = &default_serial    },
 285     { .driver = "isa-parallel",         .flag = &default_parallel  },
 286     { .driver = "isa-fdc",              .flag = &default_floppy    },
 287     { .driver = "ide-cd",               .flag = &default_cdrom     },
 288     { .driver = "ide-hd",               .flag = &default_cdrom     },
 289     { .driver = "ide-drive",            .flag = &default_cdrom     },
 290     { .driver = "scsi-cd",              .flag = &default_cdrom     },
 291     { .driver = "virtio-serial-pci",    .flag = &default_virtcon   },
 292     { .driver = "virtio-serial-s390",   .flag = &default_virtcon   },
 293     { .driver = "virtio-serial",        .flag = &default_virtcon   },
 294     { .driver = "VGA",                  .flag = &default_vga       },
 295     { .driver = "cirrus-vga",           .flag = &default_vga       },
 296     { .driver = "vmware-svga",          .flag = &default_vga       },
 297     { .driver = "isa-vga",              .flag = &default_vga       },
 298     { .driver = "qxl-vga",              .flag = &default_vga       },
 299 };
 300
 301 static void res_free(void)
 302 {
 303     if (boot_splash_filedata != NULL) {
 304         g_free(boot_splash_filedata);
 305         boot_splash_filedata = NULL;
 306     }
 307 }
 308
 309 static int default_driver_check(QemuOpts *opts, void *opaque)
 310 {
 311     const char *driver = qemu_opt_get(opts, "driver");
 312     int i;
 313
 314     if (!driver)
 315         return 0;
 316     for (i = 0; i < ARRAY_SIZE(default_list); i++) {
 317         if (strcmp(default_list[i].driver, driver) != 0)
 318             continue;
 319         *(default_list[i].flag) = 0;
 320     }
 321     return 0;
 322 }
 323
 324 /***********************************************************/
 325 /* QEMU state */
 326
 327 static RunState current_run_state = RUN_STATE_PRELAUNCH;
 328
 329 typedef struct {
 330     RunState from;
 331     RunState to;
 332 } RunStateTransition;
 333
 334 static const RunStateTransition runstate_transitions_def[] = {
 335     /*     from      ->     to      */
 336     { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
 337
 338     { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
 339     { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
 340
 341     { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
 342
 343     { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
 344
 345     { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
 346
 347     { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
 348
 349     { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
 350     { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
 351     { RUN_STATE_PRELAUNCH, RUN_STATE_POSTMIGRATE },
 352
 353     { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
 354     { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
 355
 356     { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
 357
 358     { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
 359     { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
 360     { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
 361     { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
 362     { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
 363     { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
 364     { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
 365     { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
 366     { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
 367
 368     { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
 369
 370     { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
 371
 372     { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
 373
 374     { RUN_STATE_MAX, RUN_STATE_MAX },
 375 };
 376
 377 static bool runstate_valid_transitions[RUN_STATE_MAX][RUN_STATE_MAX];
 378
 379 bool runstate_check(RunState state)
 380 {
 381     return current_run_state == state;
 382 }
 383
 384 void runstate_init(void)
 385 {
 386     const RunStateTransition *p;
 387
 388     memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
 389
 390     for (p = &runstate_transitions_def[0]; p->from != RUN_STATE_MAX; p++) {
 391         runstate_valid_transitions[p->from][p->to] = true;
 392     }
 393 }
 394
 395 /* This function will abort() on invalid state transitions */
 396 void runstate_set(RunState new_state)
 397 {
 398     if (new_state >= RUN_STATE_MAX ||
 399         !runstate_valid_transitions[current_run_state][new_state]) {
 400         fprintf(stderr, "invalid runstate transition\n");
 401         abort();
 402     }
 403
 404     current_run_state = new_state;
 405 }
 406
 407 int runstate_is_running(void)
 408 {
 409     return runstate_check(RUN_STATE_RUNNING);
 410 }
 411
 412 StatusInfo *qmp_query_status(Error **errp)
 413 {
 414     StatusInfo *info = g_malloc0(sizeof(*info));
 415
 416     info->running = runstate_is_running();
 417     info->singlestep = singlestep;
 418     info->status = current_run_state;
 419
 420     return info;
 421 }
 422
 423 /***********************************************************/
 424 /* real time host monotonic timer */
 425
 426 /***********************************************************/
 427 /* host time/date access */
 428 void qemu_get_timedate(struct tm *tm, int offset)
 429 {
 430     time_t ti;
 431     struct tm *ret;
 432
 433     time(&ti);
 434     ti += offset;
 435     if (rtc_date_offset == -1) {
 436         if (rtc_utc)
 437             ret = gmtime(&ti);
 438         else
 439             ret = localtime(&ti);
 440     } else {
 441         ti -= rtc_date_offset;
 442         ret = gmtime(&ti);
 443     }
 444
 445     memcpy(tm, ret, sizeof(struct tm));
 446 }
 447
 448 int qemu_timedate_diff(struct tm *tm)
 449 {
 450     time_t seconds;
 451
 452     if (rtc_date_offset == -1)
 453         if (rtc_utc)
 454             seconds = mktimegm(tm);
 455         else
 456             seconds = mktime(tm);
 457     else
 458         seconds = mktimegm(tm) + rtc_date_offset;
 459
 460     return seconds - time(NULL);
 461 }
 462
 463 void rtc_change_mon_event(struct tm *tm)
 464 {
 465     QObject *data;
 466
 467     data = qobject_from_jsonf("{ 'offset': %d }", qemu_timedate_diff(tm));
 468     monitor_protocol_event(QEVENT_RTC_CHANGE, data);
 469     qobject_decref(data);
 470 }
 471
 472 static void configure_rtc_date_offset(const char *startdate, int legacy)
 473 {
 474     time_t rtc_start_date;
 475     struct tm tm;
 476
 477     if (!strcmp(startdate, "now") && legacy) {
 478         rtc_date_offset = -1;
 479     } else {
 480         if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
 481                    &tm.tm_year,
 482                    &tm.tm_mon,
 483                    &tm.tm_mday,
 484                    &tm.tm_hour,
 485                    &tm.tm_min,
 486                    &tm.tm_sec) == 6) {
 487             /* OK */
 488         } else if (sscanf(startdate, "%d-%d-%d",
 489                           &tm.tm_year,
 490                           &tm.tm_mon,
 491                           &tm.tm_mday) == 3) {
 492             tm.tm_hour = 0;
 493             tm.tm_min = 0;
 494             tm.tm_sec = 0;
 495         } else {
 496             goto date_fail;
 497         }
 498         tm.tm_year -= 1900;
 499         tm.tm_mon--;
 500         rtc_start_date = mktimegm(&tm);
 501         if (rtc_start_date == -1) {
 502         date_fail:
 503             fprintf(stderr, "Invalid date format. Valid formats are:\n"
 504                             "'2006-06-17T16:01:21' or '2006-06-17'\n");
 505             exit(1);
 506         }
 507         rtc_date_offset = time(NULL) - rtc_start_date;
 508     }
 509 }
 510
 511 static void configure_rtc(QemuOpts *opts)
 512 {
 513     const char *value;
 514
 515     value = qemu_opt_get(opts, "base");
 516     if (value) {
 517         if (!strcmp(value, "utc")) {
 518             rtc_utc = 1;
 519         } else if (!strcmp(value, "localtime")) {
 520             rtc_utc = 0;
 521         } else {
 522             configure_rtc_date_offset(value, 0);
 523         }
 524     }
 525     value = qemu_opt_get(opts, "clock");
 526     if (value) {
 527         if (!strcmp(value, "host")) {
 528             rtc_clock = host_clock;
 529         } else if (!strcmp(value, "vm")) {
 530             rtc_clock = vm_clock;
 531         } else {
 532             fprintf(stderr, "qemu: invalid option value '%s'\n", value);
 533             exit(1);
 534         }
 535     }
 536     value = qemu_opt_get(opts, "driftfix");
 537     if (value) {
 538         if (!strcmp(value, "slew")) {
 539             rtc_td_hack = 1;
 540         } else if (!strcmp(value, "none")) {
 541             rtc_td_hack = 0;
 542         } else {
 543             fprintf(stderr, "qemu: invalid option value '%s'\n", value);
 544             exit(1);
 545         }
 546     }
 547 }
 548
 549 /***********************************************************/
 550 /* Bluetooth support */
 551 static int nb_hcis;
 552 static int cur_hci;
 553 static struct HCIInfo *hci_table[MAX_NICS];
 554
 555 static struct bt_vlan_s {
 556     struct bt_scatternet_s net;
 557     int id;
 558     struct bt_vlan_s *next;
 559 } *first_bt_vlan;
 560
 561 /* find or alloc a new bluetooth "VLAN" */
 562 static struct bt_scatternet_s *qemu_find_bt_vlan(int id)
 563 {
 564     struct bt_vlan_s **pvlan, *vlan;
 565     for (vlan = first_bt_vlan; vlan != NULL; vlan = vlan->next) {
 566         if (vlan->id == id)
 567             return &vlan->net;
 568     }
 569     vlan = g_malloc0(sizeof(struct bt_vlan_s));
 570     vlan->id = id;
 571     pvlan = &first_bt_vlan;
 572     while (*pvlan != NULL)
 573         pvlan = &(*pvlan)->next;
 574     *pvlan = vlan;
 575     return &vlan->net;
 576 }
 577
 578 static void null_hci_send(struct HCIInfo *hci, const uint8_t *data, int len)
 579 {
 580 }
 581
 582 static int null_hci_addr_set(struct HCIInfo *hci, const uint8_t *bd_addr)
 583 {
 584     return -ENOTSUP;
 585 }
 586
 587 static struct HCIInfo null_hci = {
 588     .cmd_send = null_hci_send,
 589     .sco_send = null_hci_send,
 590     .acl_send = null_hci_send,
 591     .bdaddr_set = null_hci_addr_set,
 592 };
 593
 594 struct HCIInfo *qemu_next_hci(void)
 595 {
 596     if (cur_hci == nb_hcis)
 597         return &null_hci;
 598
 599     return hci_table[cur_hci++];
 600 }
 601
 602 static struct HCIInfo *hci_init(const char *str)
 603 {
 604     char *endp;
 605     struct bt_scatternet_s *vlan = 0;
 606
 607     if (!strcmp(str, "null"))
 608         /* null */
 609         return &null_hci;
 610     else if (!strncmp(str, "host", 4) && (str[4] == '\0' || str[4] == ':'))
 611         /* host[:hciN] */
 612         return bt_host_hci(str[4] ? str + 5 : "hci0");
 613     else if (!strncmp(str, "hci", 3)) {
 614         /* hci[,vlan=n] */
 615         if (str[3]) {
 616             if (!strncmp(str + 3, ",vlan=", 6)) {
 617                 vlan = qemu_find_bt_vlan(strtol(str + 9, &endp, 0));
 618                 if (*endp)
 619                     vlan = 0;
 620             }
 621         } else
 622             vlan = qemu_find_bt_vlan(0);
 623         if (vlan)
 624            return bt_new_hci(vlan);
 625     }
 626
 627     fprintf(stderr, "qemu: Unknown bluetooth HCI `%s'.\n", str);
 628
 629     return 0;
 630 }
 631
 632 static int bt_hci_parse(const char *str)
 633 {
 634     struct HCIInfo *hci;
 635     bdaddr_t bdaddr;
 636
 637     if (nb_hcis >= MAX_NICS) {
 638         fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
 639         return -1;
 640     }
 641
 642     hci = hci_init(str);
 643     if (!hci)
 644         return -1;
 645
 646     bdaddr.b[0] = 0x52;
 647     bdaddr.b[1] = 0x54;
 648     bdaddr.b[2] = 0x00;
 649     bdaddr.b[3] = 0x12;
 650     bdaddr.b[4] = 0x34;
 651     bdaddr.b[5] = 0x56 + nb_hcis;
 652     hci->bdaddr_set(hci, bdaddr.b);
 653
 654     hci_table[nb_hcis++] = hci;
 655
 656     return 0;
 657 }
 658
 659 static void bt_vhci_add(int vlan_id)
 660 {
 661     struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
 662
 663     if (!vlan->slave)
 664         fprintf(stderr, "qemu: warning: adding a VHCI to "
 665                         "an empty scatternet %i\n", vlan_id);
 666
 667     bt_vhci_init(bt_new_hci(vlan));
 668 }
 669
 670 static struct bt_device_s *bt_device_add(const char *opt)
 671 {
 672     struct bt_scatternet_s *vlan;
 673     int vlan_id = 0;
 674     char *endp = strstr(opt, ",vlan=");
 675     int len = (endp ? endp - opt : strlen(opt)) + 1;
 676     char devname[10];
 677
 678     pstrcpy(devname, MIN(sizeof(devname), len), opt);
 679
 680     if (endp) {
 681         vlan_id = strtol(endp + 6, &endp, 0);
 682         if (*endp) {
 683             fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
 684             return 0;
 685         }
 686     }
 687
 688     vlan = qemu_find_bt_vlan(vlan_id);
 689
 690     if (!vlan->slave)
 691         fprintf(stderr, "qemu: warning: adding a slave device to "
 692                         "an empty scatternet %i\n", vlan_id);
 693
 694     if (!strcmp(devname, "keyboard"))
 695         return bt_keyboard_init(vlan);
 696
 697     fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
 698     return 0;
 699 }
 700
 701 static int bt_parse(const char *opt)
 702 {
 703     const char *endp, *p;
 704     int vlan;
 705
 706     if (strstart(opt, "hci", &endp)) {
 707         if (!*endp || *endp == ',') {
 708             if (*endp)
 709                 if (!strstart(endp, ",vlan=", 0))
 710                     opt = endp + 1;
 711
 712             return bt_hci_parse(opt);
 713        }
 714     } else if (strstart(opt, "vhci", &endp)) {
 715         if (!*endp || *endp == ',') {
 716             if (*endp) {
 717                 if (strstart(endp, ",vlan=", &p)) {
 718                     vlan = strtol(p, (char **) &endp, 0);
 719                     if (*endp) {
 720                         fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
 721                         return 1;
 722                     }
 723                 } else {
 724                     fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1);
 725                     return 1;
 726                 }
 727             } else
 728                 vlan = 0;
 729
 730             bt_vhci_add(vlan);
 731             return 0;
 732         }
 733     } else if (strstart(opt, "device:", &endp))
 734         return !bt_device_add(endp);
 735
 736     fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
 737     return 1;
 738 }
 739
 740 /***********************************************************/
 741 /* QEMU Block devices */
 742
 743 #define HD_OPTS "media=disk"
 744 #define CDROM_OPTS "media=cdrom"
 745 #define FD_OPTS ""
 746 #define PFLASH_OPTS ""
 747 #define MTD_OPTS ""
 748 #define SD_OPTS ""
 749
 750 static int drive_init_func(QemuOpts *opts, void *opaque)
 751 {
 752     int *use_scsi = opaque;
 753
 754     return drive_init(opts, *use_scsi) == NULL;
 755 }
 756
 757 static int drive_enable_snapshot(QemuOpts *opts, void *opaque)
 758 {
 759     if (NULL == qemu_opt_get(opts, "snapshot")) {
 760         qemu_opt_set(opts, "snapshot", "on");
 761     }
 762     return 0;
 763 }
 764
 765 static void default_drive(int enable, int snapshot, int use_scsi,
 766                           BlockInterfaceType type, int index,
 767                           const char *optstr)
 768 {
 769     QemuOpts *opts;
 770
 771     if (type == IF_DEFAULT) {
 772         type = use_scsi ? IF_SCSI : IF_IDE;
 773     }
 774
 775     if (!enable || drive_get_by_index(type, index)) {
 776         return;
 777     }
 778
 779     opts = drive_add(type, index, NULL, optstr);
 780     if (snapshot) {
 781         drive_enable_snapshot(opts, NULL);
 782     }
 783     if (!drive_init(opts, use_scsi)) {
 784         exit(1);
 785     }
 786 }
 787
 788 void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
 789 {
 790     boot_set_handler = func;
 791     boot_set_opaque = opaque;
 792 }
 793
 794 int qemu_boot_set(const char *boot_devices)
 795 {
 796     if (!boot_set_handler) {
 797         return -EINVAL;
 798     }
 799     return boot_set_handler(boot_set_opaque, boot_devices);
 800 }
 801
 802 static void validate_bootdevices(char *devices)
 803 {
 804     /* We just do some generic consistency checks */
 805     const char *p;
 806     int bitmap = 0;
 807
 808     for (p = devices; *p != '\0'; p++) {
 809         /* Allowed boot devices are:
 810          * a-b: floppy disk drives
 811          * c-f: IDE disk drives
 812          * g-m: machine implementation dependant drives
 813          * n-p: network devices
 814          * It's up to each machine implementation to check if the given boot
 815          * devices match the actual hardware implementation and firmware
 816          * features.
 817          */
 818         if (*p < 'a' || *p > 'p') {
 819             fprintf(stderr, "Invalid boot device '%c'\n", *p);
 820             exit(1);
 821         }
 822         if (bitmap & (1 << (*p - 'a'))) {
 823             fprintf(stderr, "Boot device '%c' was given twice\n", *p);
 824             exit(1);
 825         }
 826         bitmap |= 1 << (*p - 'a');
 827     }
 828 }
 829
 830 static void restore_boot_devices(void *opaque)
 831 {
 832     char *standard_boot_devices = opaque;
 833     static int first = 1;
 834
 835     /* Restore boot order and remove ourselves after the first boot */
 836     if (first) {
 837         first = 0;
 838         return;
 839     }
 840
 841     qemu_boot_set(standard_boot_devices);
 842
 843     qemu_unregister_reset(restore_boot_devices, standard_boot_devices);
 844     g_free(standard_boot_devices);
 845 }
 846
 847 void add_boot_device_path(int32_t bootindex, DeviceState *dev,
 848                           const char *suffix)
 849 {
 850     FWBootEntry *node, *i;
 851
 852     if (bootindex < 0) {
 853         return;
 854     }
 855
 856     assert(dev != NULL || suffix != NULL);
 857
 858     node = g_malloc0(sizeof(FWBootEntry));
 859     node->bootindex = bootindex;
 860     node->suffix = suffix ? g_strdup(suffix) : NULL;
 861     node->dev = dev;
 862
 863     QTAILQ_FOREACH(i, &fw_boot_order, link) {
 864         if (i->bootindex == bootindex) {
 865             fprintf(stderr, "Two devices with same boot index %d\n", bootindex);
 866             exit(1);
 867         } else if (i->bootindex < bootindex) {
 868             continue;
 869         }
 870         QTAILQ_INSERT_BEFORE(i, node, link);
 871         return;
 872     }
 873     QTAILQ_INSERT_TAIL(&fw_boot_order, node, link);
 874 }
 875
 876 /*
 877  * This function returns null terminated string that consist of new line
 878  * separated device paths.
 879  *
 880  * memory pointed by "size" is assigned total length of the array in bytes
 881  *
 882  */
 883 char *get_boot_devices_list(uint32_t *size)
 884 {
 885     FWBootEntry *i;
 886     uint32_t total = 0;
 887     char *list = NULL;
 888
 889     QTAILQ_FOREACH(i, &fw_boot_order, link) {
 890         char *devpath = NULL, *bootpath;
 891         int len;
 892
 893         if (i->dev) {
 894             devpath = qdev_get_fw_dev_path(i->dev);
 895             assert(devpath);
 896         }
 897
 898         if (i->suffix && devpath) {
 899             size_t bootpathlen = strlen(devpath) + strlen(i->suffix) + 1;
 900
 901             bootpath = g_malloc(bootpathlen);
 902             snprintf(bootpath, bootpathlen, "%s%s", devpath, i->suffix);
 903             g_free(devpath);
 904         } else if (devpath) {
 905             bootpath = devpath;
 906         } else {
 907             bootpath = g_strdup(i->suffix);
 908             assert(bootpath);
 909         }
 910
 911         if (total) {
 912             list[total-1] = '\n';
 913         }
 914         len = strlen(bootpath) + 1;
 915         list = g_realloc(list, total + len);
 916         memcpy(&list[total], bootpath, len);
 917         total += len;
 918         g_free(bootpath);
 919     }
 920
 921     *size = total;
 922
 923     return list;
 924 }
 925
 926 static void numa_add(const char *optarg)
 927 {
 928     char option[128];
 929     char *endptr;
 930     unsigned long long value, endvalue;
 931     int nodenr;
 932
 933     optarg = get_opt_name(option, 128, optarg, ',') + 1;
 934     if (!strcmp(option, "node")) {
 935         if (get_param_value(option, 128, "nodeid", optarg) == 0) {
 936             nodenr = nb_numa_nodes;
 937         } else {
 938             nodenr = strtoull(option, NULL, 10);
 939         }
 940
 941         if (get_param_value(option, 128, "mem", optarg) == 0) {
 942             node_mem[nodenr] = 0;
 943         } else {
 944             int64_t sval;
 945             sval = strtosz(option, NULL);
 946             if (sval < 0) {
 947                 fprintf(stderr, "qemu: invalid numa mem size: %s\n", optarg);
 948                 exit(1);
 949             }
 950             node_mem[nodenr] = sval;
 951         }
 952         if (get_param_value(option, 128, "cpus", optarg) == 0) {
 953             node_cpumask[nodenr] = 0;
 954         } else {
 955             value = strtoull(option, &endptr, 10);
 956             if (value >= 64) {
 957                 value = 63;
 958                 fprintf(stderr, "only 64 CPUs in NUMA mode supported.\n");
 959             } else {
 960                 if (*endptr == '-') {
 961                     endvalue = strtoull(endptr+1, &endptr, 10);
 962                     if (endvalue >= 63) {
 963                         endvalue = 62;
 964                         fprintf(stderr,
 965                             "only 63 CPUs in NUMA mode supported.\n");
 966                     }
 967                     value = (2ULL << endvalue) - (1ULL << value);
 968                 } else {
 969                     value = 1ULL << value;
 970                 }
 971             }
 972             node_cpumask[nodenr] = value;
 973         }
 974         nb_numa_nodes++;
 975     }
 976     return;
 977 }
 978
 979 static void smp_parse(const char *optarg)
 980 {
 981     int smp, sockets = 0, threads = 0, cores = 0;
 982     char *endptr;
 983     char option[128];
 984
 985     smp = strtoul(optarg, &endptr, 10);
 986     if (endptr != optarg) {
 987         if (*endptr == ',') {
 988             endptr++;
 989         }
 990     }
 991     if (get_param_value(option, 128, "sockets", endptr) != 0)
 992         sockets = strtoull(option, NULL, 10);
 993     if (get_param_value(option, 128, "cores", endptr) != 0)
 994         cores = strtoull(option, NULL, 10);
 995     if (get_param_value(option, 128, "threads", endptr) != 0)
 996         threads = strtoull(option, NULL, 10);
 997     if (get_param_value(option, 128, "maxcpus", endptr) != 0)
 998         max_cpus = strtoull(option, NULL, 10);
 999
1000     /* compute missing values, prefer sockets over cores over threads */
1001     if (smp == 0 || sockets == 0) {
1002         sockets = sockets > 0 ? sockets : 1;
1003         cores = cores > 0 ? cores : 1;
1004         threads = threads > 0 ? threads : 1;
1005         if (smp == 0) {
1006             smp = cores * threads * sockets;
1007         }
1008     } else {
1009         if (cores == 0) {
1010             threads = threads > 0 ? threads : 1;
1011             cores = smp / (sockets * threads);
1012         } else {
1013             threads = smp / (cores * sockets);
1014         }
1015     }
1016     smp_cpus = smp;
1017     smp_cores = cores > 0 ? cores : 1;
1018     smp_threads = threads > 0 ? threads : 1;
1019     if (max_cpus == 0)
1020         max_cpus = smp_cpus;
1021 }
1022
1023 /***********************************************************/
1024 /* USB devices */
1025
1026 static int usb_device_add(const char *devname)
1027 {
1028     const char *p;
1029     USBDevice *dev = NULL;
1030
1031     if (!usb_enabled)
1032         return -1;
1033
1034     /* drivers with .usbdevice_name entry in USBDeviceInfo */
1035     dev = usbdevice_create(devname);
1036     if (dev)
1037         goto done;
1038
1039     /* the other ones */
1040 #ifndef CONFIG_LINUX
1041     /* only the linux version is qdev-ified, usb-bsd still needs this */
1042     if (strstart(devname, "host:", &p)) {
1043         dev = usb_host_device_open(p);
1044     } else
1045 #endif
1046     if (!strcmp(devname, "bt") || strstart(devname, "bt:", &p)) {
1047         dev = usb_bt_init(devname[2] ? hci_init(p) :
1048                         bt_new_hci(qemu_find_bt_vlan(0)));
1049     } else {
1050         return -1;
1051     }
1052     if (!dev)
1053         return -1;
1054
1055 done:
1056     return 0;
1057 }
1058
1059 static int usb_device_del(const char *devname)
1060 {
1061     int bus_num, addr;
1062     const char *p;
1063
1064     if (strstart(devname, "host:", &p))
1065         return usb_host_device_close(p);
1066
1067     if (!usb_enabled)
1068         return -1;
1069
1070     p = strchr(devname, '.');
1071     if (!p)
1072         return -1;
1073     bus_num = strtoul(devname, NULL, 0);
1074     addr = strtoul(p + 1, NULL, 0);
1075
1076     return usb_device_delete_addr(bus_num, addr);
1077 }
1078
1079 static int usb_parse(const char *cmdline)
1080 {
1081     int r;
1082     r = usb_device_add(cmdline);
1083     if (r < 0) {
1084         fprintf(stderr, "qemu: could not add USB device '%s'\n", cmdline);
1085     }
1086     return r;
1087 }
1088
1089 void do_usb_add(Monitor *mon, const QDict *qdict)
1090 {
1091     const char *devname = qdict_get_str(qdict, "devname");
1092     if (usb_device_add(devname) < 0) {
1093         error_report("could not add USB device '%s'", devname);
1094     }
1095 }
1096
1097 void do_usb_del(Monitor *mon, const QDict *qdict)
1098 {
1099     const char *devname = qdict_get_str(qdict, "devname");
1100     if (usb_device_del(devname) < 0) {
1101         error_report("could not delete USB device '%s'", devname);
1102     }
1103 }
1104
1105 /***********************************************************/
1106 /* PCMCIA/Cardbus */
1107
1108 static struct pcmcia_socket_entry_s {
1109     PCMCIASocket *socket;
1110     struct pcmcia_socket_entry_s *next;
1111 } *pcmcia_sockets = 0;
1112
1113 void pcmcia_socket_register(PCMCIASocket *socket)
1114 {
1115     struct pcmcia_socket_entry_s *entry;
1116
1117     entry = g_malloc(sizeof(struct pcmcia_socket_entry_s));
1118     entry->socket = socket;
1119     entry->next = pcmcia_sockets;
1120     pcmcia_sockets = entry;
1121 }
1122
1123 void pcmcia_socket_unregister(PCMCIASocket *socket)
1124 {
1125     struct pcmcia_socket_entry_s *entry, **ptr;
1126
1127     ptr = &pcmcia_sockets;
1128     for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
1129         if (entry->socket == socket) {
1130             *ptr = entry->next;
1131             g_free(entry);
1132         }
1133 }
1134
1135 void pcmcia_info(Monitor *mon)
1136 {
1137     struct pcmcia_socket_entry_s *iter;
1138
1139     if (!pcmcia_sockets)
1140         monitor_printf(mon, "No PCMCIA sockets\n");
1141
1142     for (iter = pcmcia_sockets; iter; iter = iter->next)
1143         monitor_printf(mon, "%s: %s\n", iter->socket->slot_string,
1144                        iter->socket->attached ? iter->socket->card_string :
1145                        "Empty");
1146 }
1147
1148 /***********************************************************/
1149 /* machine registration */
1150
1151 static QEMUMachine *first_machine = NULL;
1152 QEMUMachine *current_machine = NULL;
1153
1154 int qemu_register_machine(QEMUMachine *m)
1155 {
1156     QEMUMachine **pm;
1157     pm = &first_machine;
1158     while (*pm != NULL)
1159         pm = &(*pm)->next;
1160     m->next = NULL;
1161     *pm = m;
1162     return 0;
1163 }
1164
1165 static QEMUMachine *find_machine(const char *name)
1166 {
1167     QEMUMachine *m;
1168
1169     for(m = first_machine; m != NULL; m = m->next) {
1170         if (!strcmp(m->name, name))
1171             return m;
1172         if (m->alias && !strcmp(m->alias, name))
1173             return m;
1174     }
1175     return NULL;
1176 }
1177
1178 static QEMUMachine *find_default_machine(void)
1179 {
1180     QEMUMachine *m;
1181
1182     for(m = first_machine; m != NULL; m = m->next) {
1183         if (m->is_default) {
1184             return m;
1185         }
1186     }
1187     return NULL;
1188 }
1189
1190 /***********************************************************/
1191 /* main execution loop */
1192
1193 static void gui_update(void *opaque)
1194 {
1195     uint64_t interval = GUI_REFRESH_INTERVAL;
1196     DisplayState *ds = opaque;
1197     DisplayChangeListener *dcl = ds->listeners;
1198
1199     qemu_flush_coalesced_mmio_buffer();
1200     dpy_refresh(ds);
1201
1202     while (dcl != NULL) {
1203         if (dcl->gui_timer_interval &&
1204             dcl->gui_timer_interval < interval)
1205             interval = dcl->gui_timer_interval;
1206         dcl = dcl->next;
1207     }
1208     qemu_mod_timer(ds->gui_timer, interval + qemu_get_clock_ms(rt_clock));
1209 }
1210
1211 static void nographic_update(void *opaque)
1212 {
1213     uint64_t interval = GUI_REFRESH_INTERVAL;
1214
1215     qemu_flush_coalesced_mmio_buffer();
1216     qemu_mod_timer(nographic_timer, interval + qemu_get_clock_ms(rt_clock));
1217 }
1218
1219 struct vm_change_state_entry {
1220     VMChangeStateHandler *cb;
1221     void *opaque;
1222     QLIST_ENTRY (vm_change_state_entry) entries;
1223 };
1224
1225 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1226
1227 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1228                                                      void *opaque)
1229 {
1230     VMChangeStateEntry *e;
1231
1232     e = g_malloc0(sizeof (*e));
1233
1234     e->cb = cb;
1235     e->opaque = opaque;
1236     QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1237     return e;
1238 }
1239
1240 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1241 {
1242     QLIST_REMOVE (e, entries);
1243     g_free (e);
1244 }
1245
1246 void vm_state_notify(int running, RunState state)
1247 {
1248     VMChangeStateEntry *e;
1249
1250     trace_vm_state_notify(running, state);
1251
1252     for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
1253         e->cb(e->opaque, running, state);
1254     }
1255 }
1256
1257 void vm_start(void)
1258 {
1259     if (!runstate_is_running()) {
1260         cpu_enable_ticks();
1261         runstate_set(RUN_STATE_RUNNING);
1262         vm_state_notify(1, RUN_STATE_RUNNING);
1263         resume_all_vcpus();
1264         monitor_protocol_event(QEVENT_RESUME, NULL);
1265     }
1266 }
1267
1268 /* reset/shutdown handler */
1269
1270 typedef struct QEMUResetEntry {
1271     QTAILQ_ENTRY(QEMUResetEntry) entry;
1272     QEMUResetHandler *func;
1273     void *opaque;
1274 } QEMUResetEntry;
1275
1276 static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
1277     QTAILQ_HEAD_INITIALIZER(reset_handlers);
1278 static int reset_requested;
1279 static int shutdown_requested, shutdown_signal = -1;
1280 static pid_t shutdown_pid;
1281 static int powerdown_requested;
1282 static int debug_requested;
1283 static RunState vmstop_requested = RUN_STATE_MAX;
1284
1285 int qemu_shutdown_requested_get(void)
1286 {
1287     return shutdown_requested;
1288 }
1289
1290 int qemu_reset_requested_get(void)
1291 {
1292     return reset_requested;
1293 }
1294
1295 int qemu_shutdown_requested(void)
1296 {
1297     int r = shutdown_requested;
1298     shutdown_requested = 0;
1299     return r;
1300 }
1301
1302 void qemu_kill_report(void)
1303 {
1304     if (shutdown_signal != -1) {
1305         fprintf(stderr, "qemu: terminating on signal %d", shutdown_signal);
1306         if (shutdown_pid == 0) {
1307             /* This happens for eg ^C at the terminal, so it's worth
1308              * avoiding printing an odd message in that case.
1309              */
1310             fputc('\n', stderr);
1311         } else {
1312             fprintf(stderr, " from pid " FMT_pid "\n", shutdown_pid);
1313         }
1314         shutdown_signal = -1;
1315     }
1316 }
1317
1318 int qemu_reset_requested(void)
1319 {
1320     int r = reset_requested;
1321     reset_requested = 0;
1322     return r;
1323 }
1324
1325 int qemu_powerdown_requested(void)
1326 {
1327     int r = powerdown_requested;
1328     powerdown_requested = 0;
1329     return r;
1330 }
1331
1332 static int qemu_debug_requested(void)
1333 {
1334     int r = debug_requested;
1335     debug_requested = 0;
1336     return r;
1337 }
1338
1339 /* We use RUN_STATE_MAX but any invalid value will do */
1340 static bool qemu_vmstop_requested(RunState *r)
1341 {
1342     if (vmstop_requested < RUN_STATE_MAX) {
1343         *r = vmstop_requested;
1344         vmstop_requested = RUN_STATE_MAX;
1345         return true;
1346     }
1347
1348     return false;
1349 }
1350
1351 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
1352 {
1353     QEMUResetEntry *re = g_malloc0(sizeof(QEMUResetEntry));
1354
1355     re->func = func;
1356     re->opaque = opaque;
1357     QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
1358 }
1359
1360 void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
1361 {
1362     QEMUResetEntry *re;
1363
1364     QTAILQ_FOREACH(re, &reset_handlers, entry) {
1365         if (re->func == func && re->opaque == opaque) {
1366             QTAILQ_REMOVE(&reset_handlers, re, entry);
1367             g_free(re);
1368             return;
1369         }
1370     }
1371 }
1372
1373 void qemu_system_reset(bool report)
1374 {
1375     QEMUResetEntry *re, *nre;
1376
1377     /* reset all devices */
1378     QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
1379         re->func(re->opaque);
1380     }
1381     if (report) {
1382         monitor_protocol_event(QEVENT_RESET, NULL);
1383     }
1384     cpu_synchronize_all_post_reset();
1385 }
1386
1387 void qemu_system_reset_request(void)
1388 {
1389     if (no_reboot) {
1390         shutdown_requested = 1;
1391     } else {
1392         reset_requested = 1;
1393     }
1394     cpu_stop_current();
1395     qemu_notify_event();
1396 }
1397
1398 void qemu_system_killed(int signal, pid_t pid)
1399 {
1400     shutdown_signal = signal;
1401     shutdown_pid = pid;
1402     no_shutdown = 0;
1403     qemu_system_shutdown_request();
1404 }
1405
1406 void qemu_system_shutdown_request(void)
1407 {
1408     shutdown_requested = 1;
1409     qemu_notify_event();
1410 }
1411
1412 void qemu_system_powerdown_request(void)
1413 {
1414     powerdown_requested = 1;
1415     qemu_notify_event();
1416 }
1417
1418 void qemu_system_debug_request(void)
1419 {
1420     debug_requested = 1;
1421     qemu_notify_event();
1422 }
1423
1424 void qemu_system_vmstop_request(RunState state)
1425 {
1426     vmstop_requested = state;
1427     qemu_notify_event();
1428 }
1429
1430 static GPollFD poll_fds[1024 * 2]; /* this is probably overkill */
1431 static int n_poll_fds;
1432 static int max_priority;
1433
1434 static void glib_select_fill(int *max_fd, fd_set *rfds, fd_set *wfds,
1435                              fd_set *xfds, struct timeval *tv)
1436 {
1437     GMainContext *context = g_main_context_default();
1438     int i;
1439     int timeout = 0, cur_timeout;
1440
1441     g_main_context_prepare(context, &max_priority);
1442
1443     n_poll_fds = g_main_context_query(context, max_priority, &timeout,
1444                                       poll_fds, ARRAY_SIZE(poll_fds));
1445     g_assert(n_poll_fds <= ARRAY_SIZE(poll_fds));
1446
1447     for (i = 0; i < n_poll_fds; i++) {
1448         GPollFD *p = &poll_fds[i];
1449
1450         if ((p->events & G_IO_IN)) {
1451             FD_SET(p->fd, rfds);
1452             *max_fd = MAX(*max_fd, p->fd);
1453         }
1454         if ((p->events & G_IO_OUT)) {
1455             FD_SET(p->fd, wfds);
1456             *max_fd = MAX(*max_fd, p->fd);
1457         }
1458         if ((p->events & G_IO_ERR)) {
1459             FD_SET(p->fd, xfds);
1460             *max_fd = MAX(*max_fd, p->fd);
1461         }
1462     }
1463
1464     cur_timeout = (tv->tv_sec * 1000) + ((tv->tv_usec + 500) / 1000);
1465     if (timeout >= 0 && timeout < cur_timeout) {
1466         tv->tv_sec = timeout / 1000;
1467         tv->tv_usec = (timeout % 1000) * 1000;
1468     }
1469 }
1470
1471 static void glib_select_poll(fd_set *rfds, fd_set *wfds, fd_set *xfds,
1472                              bool err)
1473 {
1474     GMainContext *context = g_main_context_default();
1475
1476     if (!err) {
1477         int i;
1478
1479         for (i = 0; i < n_poll_fds; i++) {
1480             GPollFD *p = &poll_fds[i];
1481
1482             if ((p->events & G_IO_IN) && FD_ISSET(p->fd, rfds)) {
1483                 p->revents |= G_IO_IN;
1484             }
1485             if ((p->events & G_IO_OUT) && FD_ISSET(p->fd, wfds)) {
1486                 p->revents |= G_IO_OUT;
1487             }
1488             if ((p->events & G_IO_ERR) && FD_ISSET(p->fd, xfds)) {
1489                 p->revents |= G_IO_ERR;
1490             }
1491         }
1492     }
1493
1494     if (g_main_context_check(context, max_priority, poll_fds, n_poll_fds)) {
1495         g_main_context_dispatch(context);
1496     }
1497 }
1498
1499 int main_loop_wait(int nonblocking)
1500 {
1501     fd_set rfds, wfds, xfds;
1502     int ret, nfds;
1503     struct timeval tv;
1504     int timeout;
1505
1506     if (nonblocking)
1507         timeout = 0;
1508     else {
1509         timeout = qemu_calculate_timeout();
1510         qemu_bh_update_timeout(&timeout);
1511     }
1512
1513     os_host_main_loop_wait(&timeout);
1514
1515     tv.tv_sec = timeout / 1000;
1516     tv.tv_usec = (timeout % 1000) * 1000;
1517
1518     /* poll any events */
1519     /* XXX: separate device handlers from system ones */
1520     nfds = -1;
1521     FD_ZERO(&rfds);
1522     FD_ZERO(&wfds);
1523     FD_ZERO(&xfds);
1524
1525     qemu_iohandler_fill(&nfds, &rfds, &wfds, &xfds);
1526     slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
1527     glib_select_fill(&nfds, &rfds, &wfds, &xfds, &tv);
1528
1529     if (timeout > 0) {
1530         qemu_mutex_unlock_iothread();
1531     }
1532
1533     ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
1534
1535     if (timeout > 0) {
1536         qemu_mutex_lock_iothread();
1537     }
1538
1539     qemu_iohandler_poll(&rfds, &wfds, &xfds, ret);
1540     slirp_select_poll(&rfds, &wfds, &xfds, (ret < 0));
1541     glib_select_poll(&rfds, &wfds, &xfds, (ret < 0));
1542
1543     qemu_run_all_timers();
1544
1545     /* Check bottom-halves last in case any of the earlier events triggered
1546        them.  */
1547     qemu_bh_poll();
1548
1549     return ret;
1550 }
1551
1552 qemu_irq qemu_system_powerdown;
1553
1554 static void main_loop(void)
1555 {
1556     bool nonblocking;
1557     int last_io __attribute__ ((unused)) = 0;
1558 #ifdef CONFIG_PROFILER
1559     int64_t ti;
1560 #endif
1561     RunState r;
1562
1563     qemu_main_loop_start();
1564
1565     for (;;) {
1566         nonblocking = !kvm_enabled() && last_io > 0;
1567 #ifdef CONFIG_PROFILER
1568         ti = profile_getclock();
1569 #endif
1570         last_io = main_loop_wait(nonblocking);
1571 #ifdef CONFIG_PROFILER
1572         dev_time += profile_getclock() - ti;
1573 #endif
1574
1575         if (qemu_debug_requested()) {
1576             vm_stop(RUN_STATE_DEBUG);
1577         }
1578         if (qemu_shutdown_requested()) {
1579             qemu_kill_report();
1580             monitor_protocol_event(QEVENT_SHUTDOWN, NULL);
1581             if (no_shutdown) {
1582                 vm_stop(RUN_STATE_SHUTDOWN);
1583             } else
1584                 break;
1585         }
1586         if (qemu_reset_requested()) {
1587             pause_all_vcpus();
1588             cpu_synchronize_all_states();
1589             qemu_system_reset(VMRESET_REPORT);
1590             resume_all_vcpus();
1591             if (runstate_check(RUN_STATE_INTERNAL_ERROR) ||
1592                 runstate_check(RUN_STATE_SHUTDOWN)) {
1593                 runstate_set(RUN_STATE_PAUSED);
1594             }
1595         }
1596         if (qemu_powerdown_requested()) {
1597             monitor_protocol_event(QEVENT_POWERDOWN, NULL);
1598             qemu_irq_raise(qemu_system_powerdown);
1599         }
1600         if (qemu_vmstop_requested(&r)) {
1601             vm_stop(r);
1602         }
1603     }
1604     bdrv_close_all();
1605     pause_all_vcpus();
1606 }
1607
1608 static void version(void)
1609 {
1610     printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
1611 }
1612
1613 static void help(int exitcode)
1614 {
1615     const char *options_help =
1616 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask)     \
1617         opt_help
1618 #define DEFHEADING(text) stringify(text) "\n"
1619 #include "qemu-options.def"
1620 #undef DEF
1621 #undef DEFHEADING
1622 #undef GEN_DOCS
1623         ;
1624     version();
1625     printf("usage: %s [options] [disk_image]\n"
1626            "\n"
1627            "'disk_image' is a raw hard disk image for IDE hard disk 0\n"
1628            "\n"
1629            "%s\n"
1630            "During emulation, the following keys are useful:\n"
1631            "ctrl-alt-f      toggle full screen\n"
1632            "ctrl-alt-n      switch to virtual console 'n'\n"
1633            "ctrl-alt        toggle mouse and keyboard grab\n"
1634            "\n"
1635            "When using -nographic, press 'ctrl-a h' to get some help.\n",
1636            "qemu",
1637            options_help);
1638     exit(exitcode);
1639 }
1640
1641 #define HAS_ARG 0x0001
1642
1643 typedef struct QEMUOption {
1644     const char *name;
1645     int flags;
1646     int index;
1647     uint32_t arch_mask;
1648 } QEMUOption;
1649
1650 static const QEMUOption qemu_options[] = {
1651     { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1652 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask)     \
1653     { option, opt_arg, opt_enum, arch_mask },
1654 #define DEFHEADING(text)
1655 #include "qemu-options.def"
1656 #undef DEF
1657 #undef DEFHEADING
1658 #undef GEN_DOCS
1659     { NULL },
1660 };
1661 static void select_vgahw (const char *p)
1662 {
1663     const char *opts;
1664
1665     default_vga = 0;
1666     vga_interface_type = VGA_NONE;
1667     if (strstart(p, "std", &opts)) {
1668         vga_interface_type = VGA_STD;
1669     } else if (strstart(p, "cirrus", &opts)) {
1670         vga_interface_type = VGA_CIRRUS;
1671     } else if (strstart(p, "vmware", &opts)) {
1672         vga_interface_type = VGA_VMWARE;
1673     } else if (strstart(p, "xenfb", &opts)) {
1674         vga_interface_type = VGA_XENFB;
1675     } else if (strstart(p, "qxl", &opts)) {
1676         vga_interface_type = VGA_QXL;
1677     } else if (!strstart(p, "none", &opts)) {
1678     invalid_vga:
1679         fprintf(stderr, "Unknown vga type: %s\n", p);
1680         exit(1);
1681     }
1682     while (*opts) {
1683         const char *nextopt;
1684
1685         if (strstart(opts, ",retrace=", &nextopt)) {
1686             opts = nextopt;
1687             if (strstart(opts, "dumb", &nextopt))
1688                 vga_retrace_method = VGA_RETRACE_DUMB;
1689             else if (strstart(opts, "precise", &nextopt))
1690                 vga_retrace_method = VGA_RETRACE_PRECISE;
1691             else goto invalid_vga;
1692         } else goto invalid_vga;
1693         opts = nextopt;
1694     }
1695 }
1696
1697 static DisplayType select_display(const char *p)
1698 {
1699     const char *opts;
1700     DisplayType display = DT_DEFAULT;
1701
1702     if (strstart(p, "sdl", &opts)) {
1703 #ifdef CONFIG_SDL
1704         display = DT_SDL;
1705         while (*opts) {
1706             const char *nextopt;
1707
1708             if (strstart(opts, ",frame=", &nextopt)) {
1709                 opts = nextopt;
1710                 if (strstart(opts, "on", &nextopt)) {
1711                     no_frame = 0;
1712                 } else if (strstart(opts, "off", &nextopt)) {
1713                     no_frame = 1;
1714                 } else {
1715                     goto invalid_sdl_args;
1716                 }
1717             } else if (strstart(opts, ",alt_grab=", &nextopt)) {
1718                 opts = nextopt;
1719                 if (strstart(opts, "on", &nextopt)) {
1720                     alt_grab = 1;
1721                 } else if (strstart(opts, "off", &nextopt)) {
1722                     alt_grab = 0;
1723                 } else {
1724                     goto invalid_sdl_args;
1725                 }
1726             } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
1727                 opts = nextopt;
1728                 if (strstart(opts, "on", &nextopt)) {
1729                     ctrl_grab = 1;
1730                 } else if (strstart(opts, "off", &nextopt)) {
1731                     ctrl_grab = 0;
1732                 } else {
1733                     goto invalid_sdl_args;
1734                 }
1735             } else if (strstart(opts, ",window_close=", &nextopt)) {
1736                 opts = nextopt;
1737                 if (strstart(opts, "on", &nextopt)) {
1738                     no_quit = 0;
1739                 } else if (strstart(opts, "off", &nextopt)) {
1740                     no_quit = 1;
1741                 } else {
1742                     goto invalid_sdl_args;
1743                 }
1744             } else {
1745             invalid_sdl_args:
1746                 fprintf(stderr, "Invalid SDL option string: %s\n", p);
1747                 exit(1);
1748             }
1749             opts = nextopt;
1750         }
1751 #else
1752         fprintf(stderr, "SDL support is disabled\n");
1753         exit(1);
1754 #endif
1755     } else if (strstart(p, "vnc", &opts)) {
1756 #ifdef CONFIG_VNC
1757         display_remote++;
1758
1759         if (*opts) {
1760             const char *nextopt;
1761
1762             if (strstart(opts, "=", &nextopt)) {
1763                 vnc_display = nextopt;
1764             }
1765         }
1766         if (!vnc_display) {
1767             fprintf(stderr, "VNC requires a display argument vnc=<display>\n");
1768             exit(1);
1769         }
1770 #else
1771         fprintf(stderr, "VNC support is disabled\n");
1772         exit(1);
1773 #endif
1774     } else if (strstart(p, "curses", &opts)) {
1775 #ifdef CONFIG_CURSES
1776         display = DT_CURSES;
1777 #else
1778         fprintf(stderr, "Curses support is disabled\n");
1779         exit(1);
1780 #endif
1781     } else if (strstart(p, "none", &opts)) {
1782         display = DT_NONE;
1783     } else {
1784         fprintf(stderr, "Unknown display type: %s\n", p);
1785         exit(1);
1786     }
1787
1788     return display;
1789 }
1790
1791 static int balloon_parse(const char *arg)
1792 {
1793     QemuOpts *opts;
1794
1795     if (strcmp(arg, "none") == 0) {
1796         return 0;
1797     }
1798
1799     if (!strncmp(arg, "virtio", 6)) {
1800         if (arg[6] == ',') {
1801             /* have params -> parse them */
1802             opts = qemu_opts_parse(qemu_find_opts("device"), arg+7, 0);
1803             if (!opts)
1804                 return  -1;
1805         } else {
1806             /* create empty opts */
1807             opts = qemu_opts_create(qemu_find_opts("device"), NULL, 0);
1808         }
1809         qemu_opt_set(opts, "driver", "virtio-balloon");
1810         return 0;
1811     }
1812
1813     return -1;
1814 }
1815
1816 char *qemu_find_file(int type, const char *name)
1817 {
1818     int len;
1819     const char *subdir;
1820     char *buf;
1821
1822     /* If name contains path separators then try it as a straight path.  */
1823     if ((strchr(name, '/') || strchr(name, '\\'))
1824         && access(name, R_OK) == 0) {
1825         return g_strdup(name);
1826     }
1827     switch (type) {
1828     case QEMU_FILE_TYPE_BIOS:
1829         subdir = "";
1830         break;
1831     case QEMU_FILE_TYPE_KEYMAP:
1832         subdir = "keymaps/";
1833         break;
1834     default:
1835         abort();
1836     }
1837     len = strlen(data_dir) + strlen(name) + strlen(subdir) + 2;
1838     buf = g_malloc0(len);
1839     snprintf(buf, len, "%s/%s%s", data_dir, subdir, name);
1840     if (access(buf, R_OK)) {
1841         g_free(buf);
1842         return NULL;
1843     }
1844     return buf;
1845 }
1846
1847 static int device_help_func(QemuOpts *opts, void *opaque)
1848 {
1849     return qdev_device_help(opts);
1850 }
1851
1852 static int device_init_func(QemuOpts *opts, void *opaque)
1853 {
1854     DeviceState *dev;
1855
1856     dev = qdev_device_add(opts);
1857     if (!dev)
1858         return -1;
1859     return 0;
1860 }
1861
1862 static int chardev_init_func(QemuOpts *opts, void *opaque)
1863 {
1864     CharDriverState *chr;
1865
1866     chr = qemu_chr_new_from_opts(opts, NULL);
1867     if (!chr)
1868         return -1;
1869     return 0;
1870 }
1871
1872 #ifdef CONFIG_VIRTFS
1873 static int fsdev_init_func(QemuOpts *opts, void *opaque)
1874 {
1875     int ret;
1876     ret = qemu_fsdev_add(opts);
1877
1878     return ret;
1879 }
1880 #endif
1881
1882 static int mon_init_func(QemuOpts *opts, void *opaque)
1883 {
1884     CharDriverState *chr;
1885     const char *chardev;
1886     const char *mode;
1887     int flags;
1888
1889     mode = qemu_opt_get(opts, "mode");
1890     if (mode == NULL) {
1891         mode = "readline";
1892     }
1893     if (strcmp(mode, "readline") == 0) {
1894         flags = MONITOR_USE_READLINE;
1895     } else if (strcmp(mode, "control") == 0) {
1896         flags = MONITOR_USE_CONTROL;
1897     } else {
1898         fprintf(stderr, "unknown monitor mode \"%s\"\n", mode);
1899         exit(1);
1900     }
1901
1902     if (qemu_opt_get_bool(opts, "pretty", 0))
1903         flags |= MONITOR_USE_PRETTY;
1904
1905     if (qemu_opt_get_bool(opts, "default", 0))
1906         flags |= MONITOR_IS_DEFAULT;
1907
1908     chardev = qemu_opt_get(opts, "chardev");
1909     chr = qemu_chr_find(chardev);
1910     if (chr == NULL) {
1911         fprintf(stderr, "chardev \"%s\" not found\n", chardev);
1912         exit(1);
1913     }
1914
1915     monitor_init(chr, flags);
1916     return 0;
1917 }
1918
1919 static void monitor_parse(const char *optarg, const char *mode)
1920 {
1921     static int monitor_device_index = 0;
1922     QemuOpts *opts;
1923     const char *p;
1924     char label[32];
1925     int def = 0;
1926
1927     if (strstart(optarg, "chardev:", &p)) {
1928         snprintf(label, sizeof(label), "%s", p);
1929     } else {
1930         snprintf(label, sizeof(label), "compat_monitor%d",
1931                  monitor_device_index);
1932         if (monitor_device_index == 0) {
1933             def = 1;
1934         }
1935         opts = qemu_chr_parse_compat(label, optarg);
1936         if (!opts) {
1937             fprintf(stderr, "parse error: %s\n", optarg);
1938             exit(1);
1939         }
1940     }
1941
1942     opts = qemu_opts_create(qemu_find_opts("mon"), label, 1);
1943     if (!opts) {
1944         fprintf(stderr, "duplicate chardev: %s\n", label);
1945         exit(1);
1946     }
1947     qemu_opt_set(opts, "mode", mode);
1948     qemu_opt_set(opts, "chardev", label);
1949     if (def)
1950         qemu_opt_set(opts, "default", "on");
1951     monitor_device_index++;
1952 }
1953
1954 struct device_config {
1955     enum {
1956         DEV_USB,       /* -usbdevice     */
1957         DEV_BT,        /* -bt            */
1958         DEV_SERIAL,    /* -serial        */
1959         DEV_PARALLEL,  /* -parallel      */
1960         DEV_VIRTCON,   /* -virtioconsole */
1961         DEV_DEBUGCON,  /* -debugcon */
1962     } type;
1963     const char *cmdline;
1964     QTAILQ_ENTRY(device_config) next;
1965 };
1966 QTAILQ_HEAD(, device_config) device_configs = QTAILQ_HEAD_INITIALIZER(device_configs);
1967
1968 static void add_device_config(int type, const char *cmdline)
1969 {
1970     struct device_config *conf;
1971
1972     conf = g_malloc0(sizeof(*conf));
1973     conf->type = type;
1974     conf->cmdline = cmdline;
1975     QTAILQ_INSERT_TAIL(&device_configs, conf, next);
1976 }
1977
1978 static int foreach_device_config(int type, int (*func)(const char *cmdline))
1979 {
1980     struct device_config *conf;
1981     int rc;
1982
1983     QTAILQ_FOREACH(conf, &device_configs, next) {
1984         if (conf->type != type)
1985             continue;
1986         rc = func(conf->cmdline);
1987         if (0 != rc)
1988             return rc;
1989     }
1990     return 0;
1991 }
1992
1993 static int serial_parse(const char *devname)
1994 {
1995     static int index = 0;
1996     char label[32];
1997
1998     if (strcmp(devname, "none") == 0)
1999         return 0;
2000     if (index == MAX_SERIAL_PORTS) {
2001         fprintf(stderr, "qemu: too many serial ports\n");
2002         exit(1);
2003     }
2004     snprintf(label, sizeof(label), "serial%d", index);
2005     serial_hds[index] = qemu_chr_new(label, devname, NULL);
2006     if (!serial_hds[index]) {
2007         fprintf(stderr, "qemu: could not open serial device '%s': %s\n",
2008                 devname, strerror(errno));
2009         return -1;
2010     }
2011     index++;
2012     return 0;
2013 }
2014
2015 static int parallel_parse(const char *devname)
2016 {
2017     static int index = 0;
2018     char label[32];
2019
2020     if (strcmp(devname, "none") == 0)
2021         return 0;
2022     if (index == MAX_PARALLEL_PORTS) {
2023         fprintf(stderr, "qemu: too many parallel ports\n");
2024         exit(1);
2025     }
2026     snprintf(label, sizeof(label), "parallel%d", index);
2027     parallel_hds[index] = qemu_chr_new(label, devname, NULL);
2028     if (!parallel_hds[index]) {
2029         fprintf(stderr, "qemu: could not open parallel device '%s': %s\n",
2030                 devname, strerror(errno));
2031         return -1;
2032     }
2033     index++;
2034     return 0;
2035 }
2036
2037 static int virtcon_parse(const char *devname)
2038 {
2039     QemuOptsList *device = qemu_find_opts("device");
2040     static int index = 0;
2041     char label[32];
2042     QemuOpts *bus_opts, *dev_opts;
2043
2044     if (strcmp(devname, "none") == 0)
2045         return 0;
2046     if (index == MAX_VIRTIO_CONSOLES) {
2047         fprintf(stderr, "qemu: too many virtio consoles\n");
2048         exit(1);
2049     }
2050
2051     bus_opts = qemu_opts_create(device, NULL, 0);
2052     qemu_opt_set(bus_opts, "driver", "virtio-serial");
2053
2054     dev_opts = qemu_opts_create(device, NULL, 0);
2055     qemu_opt_set(dev_opts, "driver", "virtconsole");
2056
2057     snprintf(label, sizeof(label), "virtcon%d", index);
2058     virtcon_hds[index] = qemu_chr_new(label, devname, NULL);
2059     if (!virtcon_hds[index]) {
2060         fprintf(stderr, "qemu: could not open virtio console '%s': %s\n",
2061                 devname, strerror(errno));
2062         return -1;
2063     }
2064     qemu_opt_set(dev_opts, "chardev", label);
2065
2066     index++;
2067     return 0;
2068 }
2069
2070 static int debugcon_parse(const char *devname)
2071 {
2072     QemuOpts *opts;
2073
2074     if (!qemu_chr_new("debugcon", devname, NULL)) {
2075         exit(1);
2076     }
2077     opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1);
2078     if (!opts) {
2079         fprintf(stderr, "qemu: already have a debugcon device\n");
2080         exit(1);
2081     }
2082     qemu_opt_set(opts, "driver", "isa-debugcon");
2083     qemu_opt_set(opts, "chardev", "debugcon");
2084     return 0;
2085 }
2086
2087 static QEMUMachine *machine_parse(const char *name)
2088 {
2089     QEMUMachine *m, *machine = NULL;
2090
2091     if (name) {
2092         machine = find_machine(name);
2093     }
2094     if (machine) {
2095         return machine;
2096     }
2097     printf("Supported machines are:\n");
2098     for (m = first_machine; m != NULL; m = m->next) {
2099         if (m->alias) {
2100             printf("%-10s %s (alias of %s)\n", m->alias, m->desc, m->name);
2101         }
2102         printf("%-10s %s%s\n", m->name, m->desc,
2103                m->is_default ? " (default)" : "");
2104     }
2105     exit(!name || *name != '?');
2106 }
2107
2108 static int tcg_init(void)
2109 {
2110     tcg_exec_init(tcg_tb_size * 1024 * 1024);
2111     return 0;
2112 }
2113
2114 static struct {
2115     const char *opt_name;
2116     const char *name;
2117     int (*available)(void);
2118     int (*init)(void);
2119     int *allowed;
2120 } accel_list[] = {
2121     { "tcg", "tcg", tcg_available, tcg_init, &tcg_allowed },
2122     { "xen", "Xen", xen_available, xen_init, &xen_allowed },
2123     { "kvm", "KVM", kvm_available, kvm_init, &kvm_allowed },
2124 };
2125
2126 static int configure_accelerator(void)
2127 {
2128     const char *p = NULL;
2129     char buf[10];
2130     int i, ret;
2131     bool accel_initalised = 0;
2132     bool init_failed = 0;
2133
2134     QemuOptsList *list = qemu_find_opts("machine");
2135     if (!QTAILQ_EMPTY(&list->head)) {
2136         p = qemu_opt_get(QTAILQ_FIRST(&list->head), "accel");
2137     }
2138
2139     if (p == NULL) {
2140         /* Use the default "accelerator", tcg */
2141         p = "tcg";
2142     }
2143
2144     while (!accel_initalised && *p != '\0') {
2145         if (*p == ':') {
2146             p++;
2147         }
2148         p = get_opt_name(buf, sizeof (buf), p, ':');
2149         for (i = 0; i < ARRAY_SIZE(accel_list); i++) {
2150             if (strcmp(accel_list[i].opt_name, buf) == 0) {
2151                 *(accel_list[i].allowed) = 1;
2152                 ret = accel_list[i].init();
2153                 if (ret < 0) {
2154                     init_failed = 1;
2155                     if (!accel_list[i].available()) {
2156                         printf("%s not supported for this target\n",
2157                                accel_list[i].name);
2158                     } else {
2159                         fprintf(stderr, "failed to initialize %s: %s\n",
2160                                 accel_list[i].name,
2161                                 strerror(-ret));
2162                     }
2163                     *(accel_list[i].allowed) = 0;
2164                 } else {
2165                     accel_initalised = 1;
2166                 }
2167                 break;
2168             }
2169         }
2170         if (i == ARRAY_SIZE(accel_list)) {
2171             fprintf(stderr, "\"%s\" accelerator does not exist.\n", buf);
2172         }
2173     }
2174
2175     if (!accel_initalised) {
2176         fprintf(stderr, "No accelerator found!\n");
2177         exit(1);
2178     }
2179
2180     if (init_failed) {
2181         fprintf(stderr, "Back to %s accelerator.\n", accel_list[i].name);
2182     }
2183
2184     return !accel_initalised;
2185 }
2186
2187 void qemu_add_exit_notifier(Notifier *notify)
2188 {
2189     notifier_list_add(&exit_notifiers, notify);
2190 }
2191
2192 void qemu_remove_exit_notifier(Notifier *notify)
2193 {
2194     notifier_list_remove(&exit_notifiers, notify);
2195 }
2196
2197 static void qemu_run_exit_notifiers(void)
2198 {
2199     notifier_list_notify(&exit_notifiers, NULL);
2200 }
2201
2202 void qemu_add_machine_init_done_notifier(Notifier *notify)
2203 {
2204     notifier_list_add(&machine_init_done_notifiers, notify);
2205 }
2206
2207 static void qemu_run_machine_init_done_notifiers(void)
2208 {
2209     notifier_list_notify(&machine_init_done_notifiers, NULL);
2210 }
2211
2212 static const QEMUOption *lookup_opt(int argc, char **argv,
2213                                     const char **poptarg, int *poptind)
2214 {
2215     const QEMUOption *popt;
2216     int optind = *poptind;
2217     char *r = argv[optind];
2218     const char *optarg;
2219
2220     loc_set_cmdline(argv, optind, 1);
2221     optind++;
2222     /* Treat --foo the same as -foo.  */
2223     if (r[1] == '-')
2224         r++;
2225     popt = qemu_options;
2226     for(;;) {
2227         if (!popt->name) {
2228             error_report("invalid option");
2229             exit(1);
2230         }
2231         if (!strcmp(popt->name, r + 1))
2232             break;
2233         popt++;
2234     }
2235     if (popt->flags & HAS_ARG) {
2236         if (optind >= argc) {
2237             error_report("requires an argument");
2238             exit(1);
2239         }
2240         optarg = argv[optind++];
2241         loc_set_cmdline(argv, optind - 2, 2);
2242     } else {
2243         optarg = NULL;
2244     }
2245
2246     *poptarg = optarg;
2247     *poptind = optind;
2248
2249     return popt;
2250 }
2251
2252 static gpointer malloc_and_trace(gsize n_bytes)
2253 {
2254     void *ptr = malloc(n_bytes);
2255     trace_g_malloc(n_bytes, ptr);
2256     return ptr;
2257 }
2258
2259 static gpointer realloc_and_trace(gpointer mem, gsize n_bytes)
2260 {
2261     void *ptr = realloc(mem, n_bytes);
2262     trace_g_realloc(mem, n_bytes, ptr);
2263     return ptr;
2264 }
2265
2266 static void free_and_trace(gpointer mem)
2267 {
2268     trace_g_free(mem);
2269     free(mem);
2270 }
2271
2272 int main(int argc, char **argv, char **envp)
2273 {
2274     const char *gdbstub_dev = NULL;
2275     int i;
2276     int snapshot, linux_boot;
2277     const char *icount_option = NULL;
2278     const char *initrd_filename;
2279     const char *kernel_filename, *kernel_cmdline;
2280     char boot_devices[33] = "cad"; /* default to HD->floppy->CD-ROM */
2281     DisplayState *ds;
2282     DisplayChangeListener *dcl;
2283     int cyls, heads, secs, translation;
2284     QemuOpts *hda_opts = NULL, *opts;
2285     QemuOptsList *olist;
2286     int optind;
2287     const char *optarg;
2288     const char *loadvm = NULL;
2289     QEMUMachine *machine;
2290     const char *cpu_model;
2291     const char *pid_file = NULL;
2292     const char *incoming = NULL;
2293 #ifdef CONFIG_VNC
2294     int show_vnc_port = 0;
2295 #endif
2296     int defconfig = 1;
2297     const char *log_mask = NULL;
2298     const char *log_file = NULL;
2299     GMemVTable mem_trace = {
2300         .malloc = malloc_and_trace,
2301         .realloc = realloc_and_trace,
2302         .free = free_and_trace,
2303     };
2304     const char *trace_events = NULL;
2305     const char *trace_file = NULL;
2306
2307     atexit(qemu_run_exit_notifiers);
2308     error_set_progname(argv[0]);
2309
2310     g_mem_set_vtable(&mem_trace);
2311     g_thread_init(NULL);
2312
2313     runstate_init();
2314
2315     init_clocks();
2316
2317     qemu_cache_utils_init(envp);
2318
2319     QLIST_INIT (&vm_change_state_head);
2320     os_setup_early_signal_handling();
2321
2322     module_call_init(MODULE_INIT_MACHINE);
2323     machine = find_default_machine();
2324     cpu_model = NULL;
2325     initrd_filename = NULL;
2326     ram_size = 0;
2327     snapshot = 0;
2328     kernel_filename = NULL;
2329     kernel_cmdline = "";
2330     cyls = heads = secs = 0;
2331     translation = BIOS_ATA_TRANSLATION_AUTO;
2332
2333     for (i = 0; i < MAX_NODES; i++) {
2334         node_mem[i] = 0;
2335         node_cpumask[i] = 0;
2336     }
2337
2338     nb_numa_nodes = 0;
2339     nb_nics = 0;
2340
2341     autostart= 1;
2342
2343     /* first pass of option parsing */
2344     optind = 1;
2345     while (optind < argc) {
2346         if (argv[optind][0] != '-') {
2347             /* disk image */
2348             optind++;
2349             continue;
2350         } else {
2351             const QEMUOption *popt;
2352
2353             popt = lookup_opt(argc, argv, &optarg, &optind);
2354             switch (popt->index) {
2355             case QEMU_OPTION_nodefconfig:
2356                 defconfig=0;
2357                 break;
2358             }
2359         }
2360     }
2361
2362     if (defconfig) {
2363         int ret;
2364
2365         ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2366         if (ret < 0 && ret != -ENOENT) {
2367             exit(1);
2368         }
2369
2370         ret = qemu_read_config_file(arch_config_name);
2371         if (ret < 0 && ret != -ENOENT) {
2372             exit(1);
2373         }
2374     }
2375     cpudef_init();
2376
2377     /* second pass of option parsing */
2378     optind = 1;
2379     for(;;) {
2380         if (optind >= argc)
2381             break;
2382         if (argv[optind][0] != '-') {
2383             hda_opts = drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
2384         } else {
2385             const QEMUOption *popt;
2386
2387             popt = lookup_opt(argc, argv, &optarg, &optind);
2388             if (!(popt->arch_mask & arch_type)) {
2389                 printf("Option %s not supported for this target\n", popt->name);
2390                 exit(1);
2391             }
2392             switch(popt->index) {
2393             case QEMU_OPTION_M:
2394                 machine = machine_parse(optarg);
2395                 break;
2396             case QEMU_OPTION_cpu:
2397                 /* hw initialization will check this */
2398                 if (*optarg == '?') {
2399                     list_cpus(stdout, &fprintf, optarg);
2400                     exit(0);
2401                 } else {
2402                     cpu_model = optarg;
2403                 }
2404                 break;
2405             case QEMU_OPTION_initrd:
2406                 initrd_filename = optarg;
2407                 break;
2408             case QEMU_OPTION_hda:
2409                 {
2410                     char buf[256];
2411                     if (cyls == 0)
2412                         snprintf(buf, sizeof(buf), "%s", HD_OPTS);
2413                     else
2414                         snprintf(buf, sizeof(buf),
2415                                  "%s,cyls=%d,heads=%d,secs=%d%s",
2416                                  HD_OPTS , cyls, heads, secs,
2417                                  translation == BIOS_ATA_TRANSLATION_LBA ?
2418                                  ",trans=lba" :
2419                                  translation == BIOS_ATA_TRANSLATION_NONE ?
2420                                  ",trans=none" : "");
2421                     drive_add(IF_DEFAULT, 0, optarg, buf);
2422                     break;
2423                 }
2424             case QEMU_OPTION_hdb:
2425             case QEMU_OPTION_hdc:
2426             case QEMU_OPTION_hdd:
2427                 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
2428                           HD_OPTS);
2429                 break;
2430             case QEMU_OPTION_drive:
2431                 if (drive_def(optarg) == NULL) {
2432                     exit(1);
2433                 }
2434                 break;
2435             case QEMU_OPTION_set:
2436                 if (qemu_set_option(optarg) != 0)
2437                     exit(1);
2438                 break;
2439             case QEMU_OPTION_global:
2440                 if (qemu_global_option(optarg) != 0)
2441                     exit(1);
2442                 break;
2443             case QEMU_OPTION_mtdblock:
2444                 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
2445                 break;
2446             case QEMU_OPTION_sd:
2447                 drive_add(IF_SD, 0, optarg, SD_OPTS);
2448                 break;
2449             case QEMU_OPTION_pflash:
2450                 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
2451                 break;
2452             case QEMU_OPTION_snapshot:
2453                 snapshot = 1;
2454                 break;
2455             case QEMU_OPTION_hdachs:
2456                 {
2457                     const char *p;
2458                     p = optarg;
2459                     cyls = strtol(p, (char **)&p, 0);
2460                     if (cyls < 1 || cyls > 16383)
2461                         goto chs_fail;
2462                     if (*p != ',')
2463                         goto chs_fail;
2464                     p++;
2465                     heads = strtol(p, (char **)&p, 0);
2466                     if (heads < 1 || heads > 16)
2467                         goto chs_fail;
2468                     if (*p != ',')
2469                         goto chs_fail;
2470                     p++;
2471                     secs = strtol(p, (char **)&p, 0);
2472                     if (secs < 1 || secs > 63)
2473                         goto chs_fail;
2474                     if (*p == ',') {
2475                         p++;
2476                         if (!strcmp(p, "none"))
2477                             translation = BIOS_ATA_TRANSLATION_NONE;
2478                         else if (!strcmp(p, "lba"))
2479                             translation = BIOS_ATA_TRANSLATION_LBA;
2480                         else if (!strcmp(p, "auto"))
2481                             translation = BIOS_ATA_TRANSLATION_AUTO;
2482                         else
2483                             goto chs_fail;
2484                     } else if (*p != '\0') {
2485                     chs_fail:
2486                         fprintf(stderr, "qemu: invalid physical CHS format\n");
2487                         exit(1);
2488                     }
2489                     if (hda_opts != NULL) {
2490                         char num[16];
2491                         snprintf(num, sizeof(num), "%d", cyls);
2492                         qemu_opt_set(hda_opts, "cyls", num);
2493                         snprintf(num, sizeof(num), "%d", heads);
2494                         qemu_opt_set(hda_opts, "heads", num);
2495                         snprintf(num, sizeof(num), "%d", secs);
2496                         qemu_opt_set(hda_opts, "secs", num);
2497                         if (translation == BIOS_ATA_TRANSLATION_LBA)
2498                             qemu_opt_set(hda_opts, "trans", "lba");
2499                         if (translation == BIOS_ATA_TRANSLATION_NONE)
2500                             qemu_opt_set(hda_opts, "trans", "none");
2501                     }
2502                 }
2503                 break;
2504             case QEMU_OPTION_numa:
2505                 if (nb_numa_nodes >= MAX_NODES) {
2506                     fprintf(stderr, "qemu: too many NUMA nodes\n");
2507                     exit(1);
2508                 }
2509                 numa_add(optarg);
2510                 break;
2511             case QEMU_OPTION_display:
2512                 display_type = select_display(optarg);
2513                 break;
2514             case QEMU_OPTION_nographic:
2515                 display_type = DT_NOGRAPHIC;
2516                 break;
2517             case QEMU_OPTION_curses:
2518 #ifdef CONFIG_CURSES
2519                 display_type = DT_CURSES;
2520 #else
2521                 fprintf(stderr, "Curses support is disabled\n");
2522                 exit(1);
2523 #endif
2524                 break;
2525             case QEMU_OPTION_portrait:
2526                 graphic_rotate = 90;
2527                 break;
2528             case QEMU_OPTION_rotate:
2529                 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
2530                 if (graphic_rotate != 0 && graphic_rotate != 90 &&
2531                     graphic_rotate != 180 && graphic_rotate != 270) {
2532                     fprintf(stderr,
2533                         "qemu: only 90, 180, 270 deg rotation is available\n");
2534                     exit(1);
2535                 }
2536                 break;
2537             case QEMU_OPTION_kernel:
2538                 kernel_filename = optarg;
2539                 break;
2540             case QEMU_OPTION_append:
2541                 kernel_cmdline = optarg;
2542                 break;
2543             case QEMU_OPTION_cdrom:
2544                 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
2545                 break;
2546             case QEMU_OPTION_boot:
2547                 {
2548                     static const char * const params[] = {
2549                         "order", "once", "menu",
2550                         "splash", "splash-time", NULL
2551                     };
2552                     char buf[sizeof(boot_devices)];
2553                     char *standard_boot_devices;
2554                     int legacy = 0;
2555
2556                     if (!strchr(optarg, '=')) {
2557                         legacy = 1;
2558                         pstrcpy(buf, sizeof(buf), optarg);
2559                     } else if (check_params(buf, sizeof(buf), params, optarg) < 0) {
2560                         fprintf(stderr,
2561                                 "qemu: unknown boot parameter '%s' in '%s'\n",
2562                                 buf, optarg);
2563                         exit(1);
2564                     }
2565
2566                     if (legacy ||
2567                         get_param_value(buf, sizeof(buf), "order", optarg)) {
2568                         validate_bootdevices(buf);
2569                         pstrcpy(boot_devices, sizeof(boot_devices), buf);
2570                     }
2571                     if (!legacy) {
2572                         if (get_param_value(buf, sizeof(buf),
2573                                             "once", optarg)) {
2574                             validate_bootdevices(buf);
2575                             standard_boot_devices = g_strdup(boot_devices);
2576                             pstrcpy(boot_devices, sizeof(boot_devices), buf);
2577                             qemu_register_reset(restore_boot_devices,
2578                                                 standard_boot_devices);
2579                         }
2580                         if (get_param_value(buf, sizeof(buf),
2581                                             "menu", optarg)) {
2582                             if (!strcmp(buf, "on")) {
2583                                 boot_menu = 1;
2584                             } else if (!strcmp(buf, "off")) {
2585                                 boot_menu = 0;
2586                             } else {
2587                                 fprintf(stderr,
2588                                         "qemu: invalid option value '%s'\n",
2589                                         buf);
2590                                 exit(1);
2591                             }
2592                         }
2593                         qemu_opts_parse(qemu_find_opts("boot-opts"),
2594                                         optarg, 0);
2595                     }
2596                 }
2597                 break;
2598             case QEMU_OPTION_fda:
2599             case QEMU_OPTION_fdb:
2600                 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
2601                           optarg, FD_OPTS);
2602                 break;
2603             case QEMU_OPTION_no_fd_bootchk:
2604                 fd_bootchk = 0;
2605                 break;
2606             case QEMU_OPTION_netdev:
2607                 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
2608                     exit(1);
2609                 }
2610                 break;
2611             case QEMU_OPTION_net:
2612                 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
2613                     exit(1);
2614                 }
2615                 break;
2616 #ifdef CONFIG_SLIRP
2617             case QEMU_OPTION_tftp:
2618                 legacy_tftp_prefix = optarg;
2619                 break;
2620             case QEMU_OPTION_bootp:
2621                 legacy_bootp_filename = optarg;
2622                 break;
2623             case QEMU_OPTION_redir:
2624                 if (net_slirp_redir(optarg) < 0)
2625                     exit(1);
2626                 break;
2627 #endif
2628             case QEMU_OPTION_bt:
2629                 add_device_config(DEV_BT, optarg);
2630                 break;
2631             case QEMU_OPTION_audio_help:
2632                 if (!(audio_available())) {
2633                     printf("Option %s not supported for this target\n", popt->name);
2634                     exit(1);
2635                 }
2636                 AUD_help ();
2637                 exit (0);
2638                 break;
2639             case QEMU_OPTION_soundhw:
2640                 if (!(audio_available())) {
2641                     printf("Option %s not supported for this target\n", popt->name);
2642                     exit(1);
2643                 }
2644                 select_soundhw (optarg);
2645                 break;
2646             case QEMU_OPTION_h:
2647                 help(0);
2648                 break;
2649             case QEMU_OPTION_version:
2650                 version();
2651                 exit(0);
2652                 break;
2653             case QEMU_OPTION_m: {
2654                 int64_t value;
2655
2656                 value = strtosz(optarg, NULL);
2657                 if (value < 0) {
2658                     fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
2659                     exit(1);
2660                 }
2661
2662                 if (value != (uint64_t)(ram_addr_t)value) {
2663                     fprintf(stderr, "qemu: ram size too large\n");
2664                     exit(1);
2665                 }
2666                 ram_size = value;
2667                 break;
2668             }
2669             case QEMU_OPTION_mempath:
2670                 mem_path = optarg;
2671                 break;
2672 #ifdef MAP_POPULATE
2673             case QEMU_OPTION_mem_prealloc:
2674                 mem_prealloc = 1;
2675                 break;
2676 #endif
2677             case QEMU_OPTION_d:
2678                 log_mask = optarg;
2679                 break;
2680             case QEMU_OPTION_D:
2681                 log_file = optarg;
2682                 break;
2683             case QEMU_OPTION_s:
2684                 gdbstub_dev = "tcp::" DEFAULT_GDBSTUB_PORT;
2685                 break;
2686             case QEMU_OPTION_gdb:
2687                 gdbstub_dev = optarg;
2688                 break;
2689             case QEMU_OPTION_L:
2690                 data_dir = optarg;
2691                 break;
2692             case QEMU_OPTION_bios:
2693                 bios_name = optarg;
2694                 break;
2695             case QEMU_OPTION_singlestep:
2696                 singlestep = 1;
2697                 break;
2698             case QEMU_OPTION_S:
2699                 autostart = 0;
2700                 break;
2701             case QEMU_OPTION_k:
2702                 keyboard_layout = optarg;
2703                 break;
2704             case QEMU_OPTION_localtime:
2705                 rtc_utc = 0;
2706                 break;
2707             case QEMU_OPTION_vga:
2708                 select_vgahw (optarg);
2709                 break;
2710             case QEMU_OPTION_g:
2711                 {
2712                     const char *p;
2713                     int w, h, depth;
2714                     p = optarg;
2715                     w = strtol(p, (char **)&p, 10);
2716                     if (w <= 0) {
2717                     graphic_error:
2718                         fprintf(stderr, "qemu: invalid resolution or depth\n");
2719                         exit(1);
2720                     }
2721                     if (*p != 'x')
2722                         goto graphic_error;
2723                     p++;
2724                     h = strtol(p, (char **)&p, 10);
2725                     if (h <= 0)
2726                         goto graphic_error;
2727                     if (*p == 'x') {
2728                         p++;
2729                         depth = strtol(p, (char **)&p, 10);
2730                         if (depth != 8 && depth != 15 && depth != 16 &&
2731                             depth != 24 && depth != 32)
2732                             goto graphic_error;
2733                     } else if (*p == '\0') {
2734                         depth = graphic_depth;
2735                     } else {
2736                         goto graphic_error;
2737                     }
2738
2739                     graphic_width = w;
2740                     graphic_height = h;
2741                     graphic_depth = depth;
2742                 }
2743                 break;
2744             case QEMU_OPTION_echr:
2745                 {
2746                     char *r;
2747                     term_escape_char = strtol(optarg, &r, 0);
2748                     if (r == optarg)
2749                         printf("Bad argument to echr\n");
2750                     break;
2751                 }
2752             case QEMU_OPTION_monitor:
2753                 monitor_parse(optarg, "readline");
2754                 default_monitor = 0;
2755                 break;
2756             case QEMU_OPTION_qmp:
2757                 monitor_parse(optarg, "control");
2758                 default_monitor = 0;
2759                 break;
2760             case QEMU_OPTION_mon:
2761                 opts = qemu_opts_parse(qemu_find_opts("mon"), optarg, 1);
2762                 if (!opts) {
2763                     exit(1);
2764                 }
2765                 default_monitor = 0;
2766                 break;
2767             case QEMU_OPTION_chardev:
2768                 opts = qemu_opts_parse(qemu_find_opts("chardev"), optarg, 1);
2769                 if (!opts) {
2770                     exit(1);
2771                 }
2772                 break;
2773             case QEMU_OPTION_fsdev:
2774                 olist = qemu_find_opts("fsdev");
2775                 if (!olist) {
2776                     fprintf(stderr, "fsdev is not supported by this qemu build.\n");
2777                     exit(1);
2778                 }
2779                 opts = qemu_opts_parse(olist, optarg, 1);
2780                 if (!opts) {
2781                     fprintf(stderr, "parse error: %s\n", optarg);
2782                     exit(1);
2783                 }
2784                 break;
2785             case QEMU_OPTION_virtfs: {
2786                 QemuOpts *fsdev;
2787                 QemuOpts *device;
2788                 const char *writeout;
2789
2790                 olist = qemu_find_opts("virtfs");
2791                 if (!olist) {
2792                     fprintf(stderr, "virtfs is not supported by this qemu build.\n");
2793                     exit(1);
2794                 }
2795                 opts = qemu_opts_parse(olist, optarg, 1);
2796                 if (!opts) {
2797                     fprintf(stderr, "parse error: %s\n", optarg);
2798                     exit(1);
2799                 }
2800
2801                 if (qemu_opt_get(opts, "fstype") == NULL ||
2802                         qemu_opt_get(opts, "mount_tag") == NULL ||
2803                         qemu_opt_get(opts, "path") == NULL ||
2804                         qemu_opt_get(opts, "security_model") == NULL) {
2805                     fprintf(stderr, "Usage: -virtfs fstype,path=/share_path/,"
2806                             "security_model=[mapped|passthrough|none],"
2807                             "mount_tag=tag.\n");
2808                     exit(1);
2809                 }
2810
2811                 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
2812                                          qemu_opt_get(opts, "mount_tag"), 1);
2813                 if (!fsdev) {
2814                     fprintf(stderr, "duplicate fsdev id: %s\n",
2815                             qemu_opt_get(opts, "mount_tag"));
2816                     exit(1);
2817                 }
2818
2819                 writeout = qemu_opt_get(opts, "writeout");
2820                 if (writeout) {
2821 #ifdef CONFIG_SYNC_FILE_RANGE
2822                     qemu_opt_set(fsdev, "writeout", writeout);
2823 #else
2824                     fprintf(stderr, "writeout=immediate not supported on "
2825                             "this platform\n");
2826                     exit(1);
2827 #endif
2828                 }
2829                 qemu_opt_set(fsdev, "fstype", qemu_opt_get(opts, "fstype"));
2830                 qemu_opt_set(fsdev, "path", qemu_opt_get(opts, "path"));
2831                 qemu_opt_set(fsdev, "security_model",
2832                              qemu_opt_get(opts, "security_model"));
2833
2834                 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0);
2835                 qemu_opt_set(device, "driver", "virtio-9p-pci");
2836                 qemu_opt_set(device, "fsdev",
2837                              qemu_opt_get(opts, "mount_tag"));
2838                 qemu_opt_set(device, "mount_tag",
2839                              qemu_opt_get(opts, "mount_tag"));
2840                 break;
2841             }
2842             case QEMU_OPTION_serial:
2843                 add_device_config(DEV_SERIAL, optarg);
2844                 default_serial = 0;
2845                 if (strncmp(optarg, "mon:", 4) == 0) {
2846                     default_monitor = 0;
2847                 }
2848                 break;
2849             case QEMU_OPTION_watchdog:
2850                 if (watchdog) {
2851                     fprintf(stderr,
2852                             "qemu: only one watchdog option may be given\n");
2853                     return 1;
2854                 }
2855                 watchdog = optarg;
2856                 break;
2857             case QEMU_OPTION_watchdog_action:
2858                 if (select_watchdog_action(optarg) == -1) {
2859                     fprintf(stderr, "Unknown -watchdog-action parameter\n");
2860                     exit(1);
2861                 }
2862                 break;
2863             case QEMU_OPTION_virtiocon:
2864                 add_device_config(DEV_VIRTCON, optarg);
2865                 default_virtcon = 0;
2866                 if (strncmp(optarg, "mon:", 4) == 0) {
2867                     default_monitor = 0;
2868                 }
2869                 break;
2870             case QEMU_OPTION_parallel:
2871                 add_device_config(DEV_PARALLEL, optarg);
2872                 default_parallel = 0;
2873                 if (strncmp(optarg, "mon:", 4) == 0) {
2874                     default_monitor = 0;
2875                 }
2876                 break;
2877             case QEMU_OPTION_debugcon:
2878                 add_device_config(DEV_DEBUGCON, optarg);
2879                 break;
2880             case QEMU_OPTION_loadvm:
2881                 loadvm = optarg;
2882                 break;
2883             case QEMU_OPTION_full_screen:
2884                 full_screen = 1;
2885                 break;
2886 #ifdef CONFIG_SDL
2887             case QEMU_OPTION_no_frame:
2888                 no_frame = 1;
2889                 break;
2890             case QEMU_OPTION_alt_grab:
2891                 alt_grab = 1;
2892                 break;
2893             case QEMU_OPTION_ctrl_grab:
2894                 ctrl_grab = 1;
2895                 break;
2896             case QEMU_OPTION_no_quit:
2897                 no_quit = 1;
2898                 break;
2899             case QEMU_OPTION_sdl:
2900                 display_type = DT_SDL;
2901                 break;
2902 #else
2903             case QEMU_OPTION_no_frame:
2904             case QEMU_OPTION_alt_grab:
2905             case QEMU_OPTION_ctrl_grab:
2906             case QEMU_OPTION_no_quit:
2907             case QEMU_OPTION_sdl:
2908                 fprintf(stderr, "SDL support is disabled\n");
2909                 exit(1);
2910 #endif
2911             case QEMU_OPTION_pidfile:
2912                 pid_file = optarg;
2913                 break;
2914             case QEMU_OPTION_win2k_hack:
2915                 win2k_install_hack = 1;
2916                 break;
2917             case QEMU_OPTION_rtc_td_hack:
2918                 rtc_td_hack = 1;
2919                 break;
2920             case QEMU_OPTION_acpitable:
2921                 do_acpitable_option(optarg);
2922                 break;
2923             case QEMU_OPTION_smbios:
2924                 do_smbios_option(optarg);
2925                 break;
2926             case QEMU_OPTION_enable_kvm:
2927                 olist = qemu_find_opts("machine");
2928                 qemu_opts_reset(olist);
2929                 qemu_opts_parse(olist, "accel=kvm", 0);
2930                 break;
2931             case QEMU_OPTION_machine:
2932                 olist = qemu_find_opts("machine");
2933                 qemu_opts_reset(olist);
2934                 opts = qemu_opts_parse(olist, optarg, 1);
2935                 if (!opts) {
2936                     fprintf(stderr, "parse error: %s\n", optarg);
2937                     exit(1);
2938                 }
2939                 optarg = qemu_opt_get(opts, "type");
2940                 if (optarg) {
2941                     machine = machine_parse(optarg);
2942                 }
2943                 break;
2944             case QEMU_OPTION_usb:
2945                 usb_enabled = 1;
2946                 break;
2947             case QEMU_OPTION_usbdevice:
2948                 usb_enabled = 1;
2949                 add_device_config(DEV_USB, optarg);
2950                 break;
2951             case QEMU_OPTION_device:
2952                 if (!qemu_opts_parse(qemu_find_opts("device"), optarg, 1)) {
2953                     exit(1);
2954                 }
2955                 break;
2956             case QEMU_OPTION_smp:
2957                 smp_parse(optarg);
2958                 if (smp_cpus < 1) {
2959                     fprintf(stderr, "Invalid number of CPUs\n");
2960                     exit(1);
2961                 }
2962                 if (max_cpus < smp_cpus) {
2963                     fprintf(stderr, "maxcpus must be equal to or greater than "
2964                             "smp\n");
2965                     exit(1);
2966                 }
2967                 if (max_cpus > 255) {
2968                     fprintf(stderr, "Unsupported number of maxcpus\n");
2969                     exit(1);
2970                 }
2971                 break;
2972             case QEMU_OPTION_vnc:
2973 #ifdef CONFIG_VNC
2974                 display_remote++;
2975                 vnc_display = optarg;
2976 #else
2977                 fprintf(stderr, "VNC support is disabled\n");
2978                 exit(1);
2979 #endif
2980                 break;
2981             case QEMU_OPTION_no_acpi:
2982                 acpi_enabled = 0;
2983                 break;
2984             case QEMU_OPTION_no_hpet:
2985                 no_hpet = 1;
2986                 break;
2987             case QEMU_OPTION_balloon:
2988                 if (balloon_parse(optarg) < 0) {
2989                     fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
2990                     exit(1);
2991                 }
2992                 break;
2993             case QEMU_OPTION_no_reboot:
2994                 no_reboot = 1;
2995                 break;
2996             case QEMU_OPTION_no_shutdown:
2997                 no_shutdown = 1;
2998                 break;
2999             case QEMU_OPTION_show_cursor:
3000                 cursor_hide = 0;
3001                 break;
3002             case QEMU_OPTION_uuid:
3003                 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
3004                     fprintf(stderr, "Fail to parse UUID string."
3005                             " Wrong format.\n");
3006                     exit(1);
3007                 }
3008                 break;
3009             case QEMU_OPTION_option_rom:
3010                 if (nb_option_roms >= MAX_OPTION_ROMS) {
3011                     fprintf(stderr, "Too many option ROMs\n");
3012                     exit(1);
3013                 }
3014                 opts = qemu_opts_parse(qemu_find_opts("option-rom"), optarg, 1);
3015                 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3016                 option_rom[nb_option_roms].bootindex =
3017                     qemu_opt_get_number(opts, "bootindex", -1);
3018                 if (!option_rom[nb_option_roms].name) {
3019                     fprintf(stderr, "Option ROM file is not specified\n");
3020                     exit(1);
3021                 }
3022                 nb_option_roms++;
3023                 break;
3024             case QEMU_OPTION_semihosting:
3025                 semihosting_enabled = 1;
3026                 break;
3027             case QEMU_OPTION_name:
3028                 qemu_name = g_strdup(optarg);
3029                  {
3030                      char *p = strchr(qemu_name, ',');
3031                      if (p != NULL) {
3032                         *p++ = 0;
3033                         if (strncmp(p, "process=", 8)) {
3034                             fprintf(stderr, "Unknown subargument %s to -name\n", p);
3035                             exit(1);
3036                         }
3037                         p += 8;
3038                         os_set_proc_name(p);
3039                      }
3040                  }
3041                 break;
3042             case QEMU_OPTION_prom_env:
3043                 if (nb_prom_envs >= MAX_PROM_ENVS) {
3044                     fprintf(stderr, "Too many prom variables\n");
3045                     exit(1);
3046                 }
3047                 prom_envs[nb_prom_envs] = optarg;
3048                 nb_prom_envs++;
3049                 break;
3050             case QEMU_OPTION_old_param:
3051                 old_param = 1;
3052                 break;
3053             case QEMU_OPTION_clock:
3054                 configure_alarms(optarg);
3055                 break;
3056             case QEMU_OPTION_startdate:
3057                 configure_rtc_date_offset(optarg, 1);
3058                 break;
3059             case QEMU_OPTION_rtc:
3060                 opts = qemu_opts_parse(qemu_find_opts("rtc"), optarg, 0);
3061                 if (!opts) {
3062                     exit(1);
3063                 }
3064                 configure_rtc(opts);
3065                 break;
3066             case QEMU_OPTION_tb_size:
3067                 tcg_tb_size = strtol(optarg, NULL, 0);
3068                 if (tcg_tb_size < 0) {
3069                     tcg_tb_size = 0;
3070                 }
3071                 break;
3072             case QEMU_OPTION_icount:
3073                 icount_option = optarg;
3074                 break;
3075             case QEMU_OPTION_incoming:
3076                 incoming = optarg;
3077                 break;
3078             case QEMU_OPTION_nodefaults:
3079                 default_serial = 0;
3080                 default_parallel = 0;
3081                 default_virtcon = 0;
3082                 default_monitor = 0;
3083                 default_vga = 0;
3084                 default_net = 0;
3085                 default_floppy = 0;
3086                 default_cdrom = 0;
3087                 default_sdcard = 0;
3088                 break;
3089             case QEMU_OPTION_xen_domid:
3090                 if (!(xen_available())) {
3091                     printf("Option %s not supported for this target\n", popt->name);
3092                     exit(1);
3093                 }
3094                 xen_domid = atoi(optarg);
3095                 break;
3096             case QEMU_OPTION_xen_create:
3097                 if (!(xen_available())) {
3098                     printf("Option %s not supported for this target\n", popt->name);
3099                     exit(1);
3100                 }
3101                 xen_mode = XEN_CREATE;
3102                 break;
3103             case QEMU_OPTION_xen_attach:
3104                 if (!(xen_available())) {
3105                     printf("Option %s not supported for this target\n", popt->name);
3106                     exit(1);
3107                 }
3108                 xen_mode = XEN_ATTACH;
3109                 break;
3110             case QEMU_OPTION_trace:
3111             {
3112                 opts = qemu_opts_parse(qemu_find_opts("trace"), optarg, 0);
3113                 if (!opts) {
3114                     exit(1);
3115                 }
3116                 trace_events = qemu_opt_get(opts, "events");
3117                 trace_file = qemu_opt_get(opts, "file");
3118                 break;
3119             }
3120             case QEMU_OPTION_readconfig:
3121                 {
3122                     int ret = qemu_read_config_file(optarg);
3123                     if (ret < 0) {
3124                         fprintf(stderr, "read config %s: %s\n", optarg,
3125                             strerror(-ret));
3126                         exit(1);
3127                     }
3128                     break;
3129                 }
3130             case QEMU_OPTION_spice:
3131                 olist = qemu_find_opts("spice");
3132                 if (!olist) {
3133                     fprintf(stderr, "spice is not supported by this qemu build.\n");
3134                     exit(1);
3135                 }
3136                 opts = qemu_opts_parse(olist, optarg, 0);
3137                 if (!opts) {
3138                     fprintf(stderr, "parse error: %s\n", optarg);
3139                     exit(1);
3140                 }
3141                 break;
3142             case QEMU_OPTION_writeconfig:
3143                 {
3144                     FILE *fp;
3145                     if (strcmp(optarg, "-") == 0) {
3146                         fp = stdout;
3147                     } else {
3148                         fp = fopen(optarg, "w");
3149                         if (fp == NULL) {
3150                             fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
3151                             exit(1);
3152                         }
3153                     }
3154                     qemu_config_write(fp);
3155                     fclose(fp);
3156                     break;
3157                 }
3158             default:
3159                 os_parse_cmd_args(popt->index, optarg);
3160             }
3161         }
3162     }
3163     loc_set_none();
3164
3165     /* Open the logfile at this point, if necessary. We can't open the logfile
3166      * when encountering either of the logging options (-d or -D) because the
3167      * other one may be encountered later on the command line, changing the
3168      * location or level of logging.
3169      */
3170     if (log_mask) {
3171         if (log_file) {
3172             set_cpu_log_filename(log_file);
3173         }
3174         set_cpu_log(log_mask);
3175     }
3176
3177     if (!trace_backend_init(trace_events, trace_file)) {
3178         exit(1);
3179     }
3180
3181     /* If no data_dir is specified then try to find it relative to the
3182        executable path.  */
3183     if (!data_dir) {
3184         data_dir = os_find_datadir(argv[0]);
3185     }
3186     /* If all else fails use the install path specified when building. */
3187     if (!data_dir) {
3188         data_dir = CONFIG_QEMU_DATADIR;
3189     }
3190
3191     /*
3192      * Default to max_cpus = smp_cpus, in case the user doesn't
3193      * specify a max_cpus value.
3194      */
3195     if (!max_cpus)
3196         max_cpus = smp_cpus;
3197
3198     machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
3199     if (smp_cpus > machine->max_cpus) {
3200         fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
3201                 "supported by machine `%s' (%d)\n", smp_cpus,  machine->name,
3202                 machine->max_cpus);
3203         exit(1);
3204     }
3205
3206     /*
3207      * Get the default machine options from the machine if it is not already
3208      * specified either by the configuration file or by the command line.
3209      */
3210     if (machine->default_machine_opts) {
3211         QemuOptsList *list = qemu_find_opts("machine");
3212         const char *p = NULL;
3213
3214         if (!QTAILQ_EMPTY(&list->head)) {
3215             p = qemu_opt_get(QTAILQ_FIRST(&list->head), "accel");
3216         }
3217         if (p == NULL) {
3218             qemu_opts_reset(list);
3219             opts = qemu_opts_parse(list, machine->default_machine_opts, 0);
3220             if (!opts) {
3221                 fprintf(stderr, "parse error for machine %s: %s\n",
3222                         machine->name, machine->default_machine_opts);
3223                 exit(1);
3224             }
3225         }
3226     }
3227
3228     qemu_opts_foreach(qemu_find_opts("device"), default_driver_check, NULL, 0);
3229     qemu_opts_foreach(qemu_find_opts("global"), default_driver_check, NULL, 0);
3230
3231     if (machine->no_serial) {
3232         default_serial = 0;
3233     }
3234     if (machine->no_parallel) {
3235         default_parallel = 0;
3236     }
3237     if (!machine->use_virtcon) {
3238         default_virtcon = 0;
3239     }
3240     if (machine->no_vga) {
3241         default_vga = 0;
3242     }
3243     if (machine->no_floppy) {
3244         default_floppy = 0;
3245     }
3246     if (machine->no_cdrom) {
3247         default_cdrom = 0;
3248     }
3249     if (machine->no_sdcard) {
3250         default_sdcard = 0;
3251     }
3252
3253     if (display_type == DT_NOGRAPHIC) {
3254         if (default_parallel)
3255             add_device_config(DEV_PARALLEL, "null");
3256         if (default_serial && default_monitor) {
3257             add_device_config(DEV_SERIAL, "mon:stdio");
3258         } else if (default_virtcon && default_monitor) {
3259             add_device_config(DEV_VIRTCON, "mon:stdio");
3260         } else {
3261             if (default_serial)
3262                 add_device_config(DEV_SERIAL, "stdio");
3263             if (default_virtcon)
3264                 add_device_config(DEV_VIRTCON, "stdio");
3265             if (default_monitor)
3266                 monitor_parse("stdio", "readline");
3267         }
3268     } else {
3269         if (default_serial)
3270             add_device_config(DEV_SERIAL, "vc:80Cx24C");
3271         if (default_parallel)
3272             add_device_config(DEV_PARALLEL, "vc:80Cx24C");
3273         if (default_monitor)
3274             monitor_parse("vc:80Cx24C", "readline");
3275         if (default_virtcon)
3276             add_device_config(DEV_VIRTCON, "vc:80Cx24C");
3277     }
3278     if (default_vga)
3279         vga_interface_type = VGA_CIRRUS;
3280
3281     socket_init();
3282
3283     if (qemu_opts_foreach(qemu_find_opts("chardev"), chardev_init_func, NULL, 1) != 0)
3284         exit(1);
3285 #ifdef CONFIG_VIRTFS
3286     if (qemu_opts_foreach(qemu_find_opts("fsdev"), fsdev_init_func, NULL, 1) != 0) {
3287         exit(1);
3288     }
3289 #endif
3290
3291     os_daemonize();
3292
3293     if (pid_file && qemu_create_pidfile(pid_file) != 0) {
3294         os_pidfile_error();
3295         exit(1);
3296     }
3297
3298     /* init the memory */
3299     if (ram_size == 0) {
3300         ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
3301     }
3302
3303     configure_accelerator();
3304
3305     if (qemu_init_main_loop()) {
3306         fprintf(stderr, "qemu_init_main_loop failed\n");
3307         exit(1);
3308     }
3309     linux_boot = (kernel_filename != NULL);
3310
3311     if (!linux_boot && *kernel_cmdline != '\0') {
3312         fprintf(stderr, "-append only allowed with -kernel option\n");
3313         exit(1);
3314     }
3315
3316     if (!linux_boot && initrd_filename != NULL) {
3317         fprintf(stderr, "-initrd only allowed with -kernel option\n");
3318         exit(1);
3319     }
3320
3321     os_set_line_buffering();
3322
3323     if (init_timer_alarm() < 0) {
3324         fprintf(stderr, "could not initialize alarm timer\n");
3325         exit(1);
3326     }
3327     configure_icount(icount_option);
3328
3329     if (net_init_clients() < 0) {
3330         exit(1);
3331     }
3332
3333     /* init the bluetooth world */
3334     if (foreach_device_config(DEV_BT, bt_parse))
3335         exit(1);
3336
3337     if (!xen_enabled()) {
3338         /* On 32-bit hosts, QEMU is limited by virtual address space */
3339         if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
3340             fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
3341             exit(1);
3342         }
3343     }
3344
3345     cpu_exec_init_all();
3346
3347     bdrv_init_with_whitelist();
3348
3349     blk_mig_init();
3350
3351     /* open the virtual block devices */
3352     if (snapshot)
3353         qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot, NULL, 0);
3354     if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func, &machine->use_scsi, 1) != 0)
3355         exit(1);
3356
3357     default_drive(default_cdrom, snapshot, machine->use_scsi,
3358                   IF_DEFAULT, 2, CDROM_OPTS);
3359     default_drive(default_floppy, snapshot, machine->use_scsi,
3360                   IF_FLOPPY, 0, FD_OPTS);
3361     default_drive(default_sdcard, snapshot, machine->use_scsi,
3362                   IF_SD, 0, SD_OPTS);
3363
3364     register_savevm_live(NULL, "ram", 0, 4, NULL, ram_save_live, NULL,
3365                          ram_load, NULL);
3366
3367     if (nb_numa_nodes > 0) {
3368         int i;
3369
3370         if (nb_numa_nodes > MAX_NODES) {
3371             nb_numa_nodes = MAX_NODES;
3372         }
3373
3374         /* If no memory size if given for any node, assume the default case
3375          * and distribute the available memory equally across all nodes
3376          */
3377         for (i = 0; i < nb_numa_nodes; i++) {
3378             if (node_mem[i] != 0)
3379                 break;
3380         }
3381         if (i == nb_numa_nodes) {
3382             uint64_t usedmem = 0;
3383
3384             /* On Linux, the each node's border has to be 8MB aligned,
3385              * the final node gets the rest.
3386              */
3387             for (i = 0; i < nb_numa_nodes - 1; i++) {
3388                 node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1);
3389                 usedmem += node_mem[i];
3390             }
3391             node_mem[i] = ram_size - usedmem;
3392         }
3393
3394         for (i = 0; i < nb_numa_nodes; i++) {
3395             if (node_cpumask[i] != 0)
3396                 break;
3397         }
3398         /* assigning the VCPUs round-robin is easier to implement, guest OSes
3399          * must cope with this anyway, because there are BIOSes out there in
3400          * real machines which also use this scheme.
3401          */
3402         if (i == nb_numa_nodes) {
3403             for (i = 0; i < smp_cpus; i++) {
3404                 node_cpumask[i % nb_numa_nodes] |= 1 << i;
3405             }
3406         }
3407     }
3408
3409     if (qemu_opts_foreach(qemu_find_opts("mon"), mon_init_func, NULL, 1) != 0) {
3410         exit(1);
3411     }
3412
3413     if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
3414         exit(1);
3415     if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
3416         exit(1);
3417     if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
3418         exit(1);
3419     if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
3420         exit(1);
3421
3422     module_call_init(MODULE_INIT_DEVICE);
3423
3424     if (qemu_opts_foreach(qemu_find_opts("device"), device_help_func, NULL, 0) != 0)
3425         exit(0);
3426
3427     if (watchdog) {
3428         i = select_watchdog(watchdog);
3429         if (i > 0)
3430             exit (i == 1 ? 1 : 0);
3431     }
3432
3433     if (machine->compat_props) {
3434         qdev_prop_register_global_list(machine->compat_props);
3435     }
3436     qemu_add_globals();
3437
3438     machine->init(ram_size, boot_devices,
3439                   kernel_filename, kernel_cmdline, initrd_filename, cpu_model);
3440
3441     cpu_synchronize_all_post_init();
3442
3443     set_numa_modes();
3444
3445     current_machine = machine;
3446
3447     /* init USB devices */
3448     if (usb_enabled) {
3449         if (foreach_device_config(DEV_USB, usb_parse) < 0)
3450             exit(1);
3451     }
3452
3453     /* init generic devices */
3454     if (qemu_opts_foreach(qemu_find_opts("device"), device_init_func, NULL, 1) != 0)
3455         exit(1);
3456
3457     net_check_clients();
3458
3459     /* just use the first displaystate for the moment */
3460     ds = get_displaystate();
3461
3462     if (using_spice)
3463         display_remote++;
3464     if (display_type == DT_DEFAULT && !display_remote) {
3465 #if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
3466         display_type = DT_SDL;
3467 #elif defined(CONFIG_VNC)
3468         vnc_display = "localhost:0,to=99";
3469         show_vnc_port = 1;
3470 #else
3471         display_type = DT_NONE;
3472 #endif
3473     }
3474
3475
3476     /* init local displays */
3477     switch (display_type) {
3478     case DT_NOGRAPHIC:
3479         break;
3480 #if defined(CONFIG_CURSES)
3481     case DT_CURSES:
3482         curses_display_init(ds, full_screen);
3483         break;
3484 #endif
3485 #if defined(CONFIG_SDL)
3486     case DT_SDL:
3487         sdl_display_init(ds, full_screen, no_frame);
3488         break;
3489 #elif defined(CONFIG_COCOA)
3490     case DT_SDL:
3491         cocoa_display_init(ds, full_screen);
3492         break;
3493 #endif
3494     default:
3495         break;
3496     }
3497
3498     /* must be after terminal init, SDL library changes signal handlers */
3499     os_setup_signal_handling();
3500
3501 #ifdef CONFIG_VNC
3502     /* init remote displays */
3503     if (vnc_display) {
3504         vnc_display_init(ds);
3505         if (vnc_display_open(ds, vnc_display) < 0)
3506             exit(1);
3507
3508         if (show_vnc_port) {
3509             printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
3510         }
3511     }
3512 #endif
3513 #ifdef CONFIG_SPICE
3514     if (using_spice && !qxl_enabled) {
3515         qemu_spice_display_init(ds);
3516     }
3517 #endif
3518
3519     /* display setup */
3520     dpy_resize(ds);
3521     dcl = ds->listeners;
3522     while (dcl != NULL) {
3523         if (dcl->dpy_refresh != NULL) {
3524             ds->gui_timer = qemu_new_timer_ms(rt_clock, gui_update, ds);
3525             qemu_mod_timer(ds->gui_timer, qemu_get_clock_ms(rt_clock));
3526             break;
3527         }
3528         dcl = dcl->next;
3529     }
3530     if (ds->gui_timer == NULL) {
3531         nographic_timer = qemu_new_timer_ms(rt_clock, nographic_update, NULL);
3532         qemu_mod_timer(nographic_timer, qemu_get_clock_ms(rt_clock));
3533     }
3534     text_consoles_set_display(ds);
3535
3536     if (gdbstub_dev && gdbserver_start(gdbstub_dev) < 0) {
3537         fprintf(stderr, "qemu: could not open gdbserver on device '%s'\n",
3538                 gdbstub_dev);
3539         exit(1);
3540     }
3541
3542     qdev_machine_creation_done();
3543
3544     if (rom_load_all() != 0) {
3545         fprintf(stderr, "rom loading failed\n");
3546         exit(1);
3547     }
3548
3549     /* TODO: once all bus devices are qdevified, this should be done
3550      * when bus is created by qdev.c */
3551     qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
3552     qemu_run_machine_init_done_notifiers();
3553
3554     qemu_system_reset(VMRESET_SILENT);
3555     if (loadvm) {
3556         if (load_vmstate(loadvm) < 0) {
3557             autostart = 0;
3558         }
3559     }
3560
3561     if (incoming) {
3562         runstate_set(RUN_STATE_INMIGRATE);
3563         int ret = qemu_start_incoming_migration(incoming);
3564         if (ret < 0) {
3565             fprintf(stderr, "Migration failed. Exit code %s(%d), exiting.\n",
3566                     incoming, ret);
3567             exit(ret);
3568         }
3569     } else if (autostart) {
3570         vm_start();
3571     }
3572
3573     os_setup_post();
3574
3575     main_loop();
3576     quit_timers();
3577     net_cleanup();
3578     res_free();
3579
3580     return 0;
3581 }