vl.c

   1 /*
   2  * QEMU System Emulator
   3  *
   4  * Copyright (c) 2003-2008 Fabrice Bellard
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a copy
   7  * of this software and associated documentation files (the "Software"), to deal
   8  * in the Software without restriction, including without limitation the rights
   9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10  * copies of the Software, and to permit persons to whom the Software is
  11  * furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22  * THE SOFTWARE.
  23  */
  24 #include <unistd.h>
  25 #include <fcntl.h>
  26 #include <signal.h>
  27 #include <time.h>
  28 #include <errno.h>
  29 #include <sys/time.h>
  30 #include <zlib.h>
  31
  32 /* Needed early for CONFIG_BSD etc. */
  33 #include "config-host.h"
  34
  35 #ifndef _WIN32
  36 #include <libgen.h>
  37 #include <sys/times.h>
  38 #include <sys/wait.h>
  39 #include <termios.h>
  40 #include <sys/mman.h>
  41 #include <sys/ioctl.h>
  42 #include <sys/resource.h>
  43 #include <sys/socket.h>
  44 #include <netinet/in.h>
  45 #include <net/if.h>
  46 #include <arpa/inet.h>
  47 #include <dirent.h>
  48 #include <netdb.h>
  49 #include <sys/select.h>
  50
  51 #ifdef CONFIG_BSD
  52 #include <sys/stat.h>
  53 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
  54 #include <libutil.h>
  55 #include <sys/sysctl.h>
  56 #else
  57 #include <util.h>
  58 #endif
  59 #else
  60 #ifdef __linux__
  61 #include <pty.h>
  62 #include <malloc.h>
  63
  64 #include <linux/ppdev.h>
  65 #include <linux/parport.h>
  66 #endif
  67 #ifdef __sun__
  68 #include <sys/stat.h>
  69 #include <sys/ethernet.h>
  70 #include <sys/sockio.h>
  71 #include <netinet/arp.h>
  72 #include <netinet/in_systm.h>
  73 #include <netinet/ip.h>
  74 #include <netinet/ip_icmp.h> // must come after ip.h
  75 #include <netinet/udp.h>
  76 #include <netinet/tcp.h>
  77 #include <net/if.h>
  78 #include <syslog.h>
  79 #include <stropts.h>
  80 #endif
  81 #endif
  82 #endif
  83
  84 #if defined(__OpenBSD__)
  85 #include <util.h>
  86 #endif
  87
  88 #if defined(CONFIG_VDE)
  89 #include <libvdeplug.h>
  90 #endif
  91
  92 #ifdef _WIN32
  93 #include <windows.h>
  94 #endif
  95
  96 #ifdef CONFIG_SDL
  97 #if defined(__APPLE__) || defined(main)
  98 #include <SDL.h>
  99 int qemu_main(int argc, char **argv, char **envp);
 100 int main(int argc, char **argv)
 101 {
 102     return qemu_main(argc, argv, NULL);
 103 }
 104 #undef main
 105 #define main qemu_main
 106 #endif
 107 #endif /* CONFIG_SDL */
 108
 109 #ifdef CONFIG_COCOA
 110 #undef main
 111 #define main qemu_main
 112 #endif /* CONFIG_COCOA */
 113
 114 #include <glib.h>
 115
 116 #include "hw/hw.h"
 117 #include "hw/boards.h"
 118 #include "hw/usb.h"
 119 #include "hw/pcmcia.h"
 120 #include "hw/pc.h"
 121 #include "hw/isa.h"
 122 #include "hw/baum.h"
 123 #include "hw/bt.h"
 124 #include "hw/watchdog.h"
 125 #include "hw/smbios.h"
 126 #include "hw/xen.h"
 127 #include "hw/qdev.h"
 128 #include "hw/loader.h"
 129 #include "bt-host.h"
 130 #include "net.h"
 131 #include "net/slirp.h"
 132 #include "monitor.h"
 133 #include "console.h"
 134 #include "sysemu.h"
 135 #include "gdbstub.h"
 136 #include "qemu-timer.h"
 137 #include "qemu-char.h"
 138 #include "cache-utils.h"
 139 #include "block.h"
 140 #include "blockdev.h"
 141 #include "block-migration.h"
 142 #include "dma.h"
 143 #include "audio/audio.h"
 144 #include "migration.h"
 145 #include "kvm.h"
 146 #include "qemu-option.h"
 147 #include "qemu-config.h"
 148 #include "qemu-objects.h"
 149 #include "qemu-options.h"
 150 #include "qmp-commands.h"
 151 #ifdef CONFIG_VIRTFS
 152 #include "fsdev/qemu-fsdev.h"
 153 #endif
 154
 155 #include "disas.h"
 156
 157 #include "qemu_socket.h"
 158
 159 #include "slirp/libslirp.h"
 160
 161 #include "trace.h"
 162 #include "trace/control.h"
 163 #include "qemu-queue.h"
 164 #include "cpus.h"
 165 #include "arch_init.h"
 166
 167 #include "ui/qemu-spice.h"
 168
 169 //#define DEBUG_NET
 170 //#define DEBUG_SLIRP
 171
 172 #define DEFAULT_RAM_SIZE 128
 173
 174 #define MAX_VIRTIO_CONSOLES 1
 175
 176 static const char *data_dir;
 177 const char *bios_name = NULL;
 178 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
 179 DisplayType display_type = DT_DEFAULT;
 180 int display_remote = 0;
 181 const char* keyboard_layout = NULL;
 182 ram_addr_t ram_size;
 183 const char *mem_path = NULL;
 184 #ifdef MAP_POPULATE
 185 int mem_prealloc = 0; /* force preallocation of physical target memory */
 186 #endif
 187 int nb_nics;
 188 NICInfo nd_table[MAX_NICS];
 189 int autostart;
 190 static int rtc_utc = 1;
 191 static int rtc_date_offset = -1; /* -1 means no change */
 192 QEMUClock *rtc_clock;
 193 int vga_interface_type = VGA_NONE;
 194 static int full_screen = 0;
 195 #ifdef CONFIG_SDL
 196 static int no_frame = 0;
 197 #endif
 198 int no_quit = 0;
 199 CharDriverState *serial_hds[MAX_SERIAL_PORTS];
 200 CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
 201 CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES];
 202 int win2k_install_hack = 0;
 203 int rtc_td_hack = 0;
 204 int usb_enabled = 0;
 205 int singlestep = 0;
 206 int smp_cpus = 1;
 207 int max_cpus = 0;
 208 int smp_cores = 1;
 209 int smp_threads = 1;
 210 #ifdef CONFIG_VNC
 211 const char *vnc_display;
 212 #endif
 213 int acpi_enabled = 1;
 214 int no_hpet = 0;
 215 int fd_bootchk = 1;
 216 int no_reboot = 0;
 217 int no_shutdown = 0;
 218 int cursor_hide = 1;
 219 int graphic_rotate = 0;
 220 uint8_t irq0override = 1;
 221 const char *watchdog;
 222 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
 223 int nb_option_roms;
 224 int semihosting_enabled = 0;
 225 int old_param = 0;
 226 const char *qemu_name;
 227 int alt_grab = 0;
 228 int ctrl_grab = 0;
 229 unsigned int nb_prom_envs = 0;
 230 const char *prom_envs[MAX_PROM_ENVS];
 231 int boot_menu;
 232 uint8_t *boot_splash_filedata;
 233 int boot_splash_filedata_size;
 234 uint8_t qemu_extra_params_fw[2];
 235
 236 typedef struct FWBootEntry FWBootEntry;
 237
 238 struct FWBootEntry {
 239     QTAILQ_ENTRY(FWBootEntry) link;
 240     int32_t bootindex;
 241     DeviceState *dev;
 242     char *suffix;
 243 };
 244
 245 QTAILQ_HEAD(, FWBootEntry) fw_boot_order = QTAILQ_HEAD_INITIALIZER(fw_boot_order);
 246
 247 int nb_numa_nodes;
 248 uint64_t node_mem[MAX_NODES];
 249 uint64_t node_cpumask[MAX_NODES];
 250
 251 uint8_t qemu_uuid[16];
 252
 253 static QEMUBootSetHandler *boot_set_handler;
 254 static void *boot_set_opaque;
 255
 256 static NotifierList exit_notifiers =
 257     NOTIFIER_LIST_INITIALIZER(exit_notifiers);
 258
 259 static NotifierList machine_init_done_notifiers =
 260     NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
 261
 262 static int tcg_allowed = 1;
 263 int kvm_allowed = 0;
 264 int xen_allowed = 0;
 265 uint32_t xen_domid;
 266 enum xen_mode xen_mode = XEN_EMULATE;
 267 static int tcg_tb_size;
 268
 269 static int default_serial = 1;
 270 static int default_parallel = 1;
 271 static int default_virtcon = 1;
 272 static int default_monitor = 1;
 273 static int default_vga = 1;
 274 static int default_floppy = 1;
 275 static int default_cdrom = 1;
 276 static int default_sdcard = 1;
 277
 278 static struct {
 279     const char *driver;
 280     int *flag;
 281 } default_list[] = {
 282     { .driver = "isa-serial",           .flag = &default_serial    },
 283     { .driver = "isa-parallel",         .flag = &default_parallel  },
 284     { .driver = "isa-fdc",              .flag = &default_floppy    },
 285     { .driver = "ide-cd",               .flag = &default_cdrom     },
 286     { .driver = "ide-hd",               .flag = &default_cdrom     },
 287     { .driver = "ide-drive",            .flag = &default_cdrom     },
 288     { .driver = "scsi-cd",              .flag = &default_cdrom     },
 289     { .driver = "virtio-serial-pci",    .flag = &default_virtcon   },
 290     { .driver = "virtio-serial-s390",   .flag = &default_virtcon   },
 291     { .driver = "virtio-serial",        .flag = &default_virtcon   },
 292     { .driver = "VGA",                  .flag = &default_vga       },
 293     { .driver = "cirrus-vga",           .flag = &default_vga       },
 294     { .driver = "vmware-svga",          .flag = &default_vga       },
 295     { .driver = "isa-vga",              .flag = &default_vga       },
 296     { .driver = "qxl-vga",              .flag = &default_vga       },
 297 };
 298
 299 static void res_free(void)
 300 {
 301     if (boot_splash_filedata != NULL) {
 302         g_free(boot_splash_filedata);
 303         boot_splash_filedata = NULL;
 304     }
 305 }
 306
 307 static int default_driver_check(QemuOpts *opts, void *opaque)
 308 {
 309     const char *driver = qemu_opt_get(opts, "driver");
 310     int i;
 311
 312     if (!driver)
 313         return 0;
 314     for (i = 0; i < ARRAY_SIZE(default_list); i++) {
 315         if (strcmp(default_list[i].driver, driver) != 0)
 316             continue;
 317         *(default_list[i].flag) = 0;
 318     }
 319     return 0;
 320 }
 321
 322 /***********************************************************/
 323 /* QEMU state */
 324
 325 static RunState current_run_state = RUN_STATE_PRELAUNCH;
 326
 327 typedef struct {
 328     RunState from;
 329     RunState to;
 330 } RunStateTransition;
 331
 332 static const RunStateTransition runstate_transitions_def[] = {
 333     /*     from      ->     to      */
 334     { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
 335
 336     { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
 337     { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
 338
 339     { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
 340
 341     { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
 342
 343     { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
 344     { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
 345
 346     { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
 347
 348     { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
 349     { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
 350     { RUN_STATE_PRELAUNCH, RUN_STATE_POSTMIGRATE },
 351
 352     { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
 353     { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
 354
 355     { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
 356
 357     { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
 358     { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
 359     { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
 360     { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
 361     { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
 362     { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
 363     { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
 364     { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
 365     { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
 366
 367     { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
 368
 369     { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
 370
 371     { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
 372
 373     { RUN_STATE_MAX, RUN_STATE_MAX },
 374 };
 375
 376 static bool runstate_valid_transitions[RUN_STATE_MAX][RUN_STATE_MAX];
 377
 378 bool runstate_check(RunState state)
 379 {
 380     return current_run_state == state;
 381 }
 382
 383 void runstate_init(void)
 384 {
 385     const RunStateTransition *p;
 386
 387     memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
 388
 389     for (p = &runstate_transitions_def[0]; p->from != RUN_STATE_MAX; p++) {
 390         runstate_valid_transitions[p->from][p->to] = true;
 391     }
 392 }
 393
 394 /* This function will abort() on invalid state transitions */
 395 void runstate_set(RunState new_state)
 396 {
 397     assert(new_state < RUN_STATE_MAX);
 398
 399     if (!runstate_valid_transitions[current_run_state][new_state]) {
 400         fprintf(stderr, "ERROR: invalid runstate transition: '%s' -> '%s'\n",
 401                 RunState_lookup[current_run_state],
 402                 RunState_lookup[new_state]);
 403         abort();
 404     }
 405
 406     current_run_state = new_state;
 407 }
 408
 409 int runstate_is_running(void)
 410 {
 411     return runstate_check(RUN_STATE_RUNNING);
 412 }
 413
 414 StatusInfo *qmp_query_status(Error **errp)
 415 {
 416     StatusInfo *info = g_malloc0(sizeof(*info));
 417
 418     info->running = runstate_is_running();
 419     info->singlestep = singlestep;
 420     info->status = current_run_state;
 421
 422     return info;
 423 }
 424
 425 /***********************************************************/
 426 /* real time host monotonic timer */
 427
 428 /***********************************************************/
 429 /* host time/date access */
 430 void qemu_get_timedate(struct tm *tm, int offset)
 431 {
 432     time_t ti;
 433     struct tm *ret;
 434
 435     time(&ti);
 436     ti += offset;
 437     if (rtc_date_offset == -1) {
 438         if (rtc_utc)
 439             ret = gmtime(&ti);
 440         else
 441             ret = localtime(&ti);
 442     } else {
 443         ti -= rtc_date_offset;
 444         ret = gmtime(&ti);
 445     }
 446
 447     memcpy(tm, ret, sizeof(struct tm));
 448 }
 449
 450 int qemu_timedate_diff(struct tm *tm)
 451 {
 452     time_t seconds;
 453
 454     if (rtc_date_offset == -1)
 455         if (rtc_utc)
 456             seconds = mktimegm(tm);
 457         else
 458             seconds = mktime(tm);
 459     else
 460         seconds = mktimegm(tm) + rtc_date_offset;
 461
 462     return seconds - time(NULL);
 463 }
 464
 465 void rtc_change_mon_event(struct tm *tm)
 466 {
 467     QObject *data;
 468
 469     data = qobject_from_jsonf("{ 'offset': %d }", qemu_timedate_diff(tm));
 470     monitor_protocol_event(QEVENT_RTC_CHANGE, data);
 471     qobject_decref(data);
 472 }
 473
 474 static void configure_rtc_date_offset(const char *startdate, int legacy)
 475 {
 476     time_t rtc_start_date;
 477     struct tm tm;
 478
 479     if (!strcmp(startdate, "now") && legacy) {
 480         rtc_date_offset = -1;
 481     } else {
 482         if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
 483                    &tm.tm_year,
 484                    &tm.tm_mon,
 485                    &tm.tm_mday,
 486                    &tm.tm_hour,
 487                    &tm.tm_min,
 488                    &tm.tm_sec) == 6) {
 489             /* OK */
 490         } else if (sscanf(startdate, "%d-%d-%d",
 491                           &tm.tm_year,
 492                           &tm.tm_mon,
 493                           &tm.tm_mday) == 3) {
 494             tm.tm_hour = 0;
 495             tm.tm_min = 0;
 496             tm.tm_sec = 0;
 497         } else {
 498             goto date_fail;
 499         }
 500         tm.tm_year -= 1900;
 501         tm.tm_mon--;
 502         rtc_start_date = mktimegm(&tm);
 503         if (rtc_start_date == -1) {
 504         date_fail:
 505             fprintf(stderr, "Invalid date format. Valid formats are:\n"
 506                             "'2006-06-17T16:01:21' or '2006-06-17'\n");
 507             exit(1);
 508         }
 509         rtc_date_offset = time(NULL) - rtc_start_date;
 510     }
 511 }
 512
 513 static void configure_rtc(QemuOpts *opts)
 514 {
 515     const char *value;
 516
 517     value = qemu_opt_get(opts, "base");
 518     if (value) {
 519         if (!strcmp(value, "utc")) {
 520             rtc_utc = 1;
 521         } else if (!strcmp(value, "localtime")) {
 522             rtc_utc = 0;
 523         } else {
 524             configure_rtc_date_offset(value, 0);
 525         }
 526     }
 527     value = qemu_opt_get(opts, "clock");
 528     if (value) {
 529         if (!strcmp(value, "host")) {
 530             rtc_clock = host_clock;
 531         } else if (!strcmp(value, "vm")) {
 532             rtc_clock = vm_clock;
 533         } else {
 534             fprintf(stderr, "qemu: invalid option value '%s'\n", value);
 535             exit(1);
 536         }
 537     }
 538     value = qemu_opt_get(opts, "driftfix");
 539     if (value) {
 540         if (!strcmp(value, "slew")) {
 541             rtc_td_hack = 1;
 542         } else if (!strcmp(value, "none")) {
 543             rtc_td_hack = 0;
 544         } else {
 545             fprintf(stderr, "qemu: invalid option value '%s'\n", value);
 546             exit(1);
 547         }
 548     }
 549 }
 550
 551 /***********************************************************/
 552 /* Bluetooth support */
 553 static int nb_hcis;
 554 static int cur_hci;
 555 static struct HCIInfo *hci_table[MAX_NICS];
 556
 557 static struct bt_vlan_s {
 558     struct bt_scatternet_s net;
 559     int id;
 560     struct bt_vlan_s *next;
 561 } *first_bt_vlan;
 562
 563 /* find or alloc a new bluetooth "VLAN" */
 564 static struct bt_scatternet_s *qemu_find_bt_vlan(int id)
 565 {
 566     struct bt_vlan_s **pvlan, *vlan;
 567     for (vlan = first_bt_vlan; vlan != NULL; vlan = vlan->next) {
 568         if (vlan->id == id)
 569             return &vlan->net;
 570     }
 571     vlan = g_malloc0(sizeof(struct bt_vlan_s));
 572     vlan->id = id;
 573     pvlan = &first_bt_vlan;
 574     while (*pvlan != NULL)
 575         pvlan = &(*pvlan)->next;
 576     *pvlan = vlan;
 577     return &vlan->net;
 578 }
 579
 580 static void null_hci_send(struct HCIInfo *hci, const uint8_t *data, int len)
 581 {
 582 }
 583
 584 static int null_hci_addr_set(struct HCIInfo *hci, const uint8_t *bd_addr)
 585 {
 586     return -ENOTSUP;
 587 }
 588
 589 static struct HCIInfo null_hci = {
 590     .cmd_send = null_hci_send,
 591     .sco_send = null_hci_send,
 592     .acl_send = null_hci_send,
 593     .bdaddr_set = null_hci_addr_set,
 594 };
 595
 596 struct HCIInfo *qemu_next_hci(void)
 597 {
 598     if (cur_hci == nb_hcis)
 599         return &null_hci;
 600
 601     return hci_table[cur_hci++];
 602 }
 603
 604 static struct HCIInfo *hci_init(const char *str)
 605 {
 606     char *endp;
 607     struct bt_scatternet_s *vlan = 0;
 608
 609     if (!strcmp(str, "null"))
 610         /* null */
 611         return &null_hci;
 612     else if (!strncmp(str, "host", 4) && (str[4] == '\0' || str[4] == ':'))
 613         /* host[:hciN] */
 614         return bt_host_hci(str[4] ? str + 5 : "hci0");
 615     else if (!strncmp(str, "hci", 3)) {
 616         /* hci[,vlan=n] */
 617         if (str[3]) {
 618             if (!strncmp(str + 3, ",vlan=", 6)) {
 619                 vlan = qemu_find_bt_vlan(strtol(str + 9, &endp, 0));
 620                 if (*endp)
 621                     vlan = 0;
 622             }
 623         } else
 624             vlan = qemu_find_bt_vlan(0);
 625         if (vlan)
 626            return bt_new_hci(vlan);
 627     }
 628
 629     fprintf(stderr, "qemu: Unknown bluetooth HCI `%s'.\n", str);
 630
 631     return 0;
 632 }
 633
 634 static int bt_hci_parse(const char *str)
 635 {
 636     struct HCIInfo *hci;
 637     bdaddr_t bdaddr;
 638
 639     if (nb_hcis >= MAX_NICS) {
 640         fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
 641         return -1;
 642     }
 643
 644     hci = hci_init(str);
 645     if (!hci)
 646         return -1;
 647
 648     bdaddr.b[0] = 0x52;
 649     bdaddr.b[1] = 0x54;
 650     bdaddr.b[2] = 0x00;
 651     bdaddr.b[3] = 0x12;
 652     bdaddr.b[4] = 0x34;
 653     bdaddr.b[5] = 0x56 + nb_hcis;
 654     hci->bdaddr_set(hci, bdaddr.b);
 655
 656     hci_table[nb_hcis++] = hci;
 657
 658     return 0;
 659 }
 660
 661 static void bt_vhci_add(int vlan_id)
 662 {
 663     struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
 664
 665     if (!vlan->slave)
 666         fprintf(stderr, "qemu: warning: adding a VHCI to "
 667                         "an empty scatternet %i\n", vlan_id);
 668
 669     bt_vhci_init(bt_new_hci(vlan));
 670 }
 671
 672 static struct bt_device_s *bt_device_add(const char *opt)
 673 {
 674     struct bt_scatternet_s *vlan;
 675     int vlan_id = 0;
 676     char *endp = strstr(opt, ",vlan=");
 677     int len = (endp ? endp - opt : strlen(opt)) + 1;
 678     char devname[10];
 679
 680     pstrcpy(devname, MIN(sizeof(devname), len), opt);
 681
 682     if (endp) {
 683         vlan_id = strtol(endp + 6, &endp, 0);
 684         if (*endp) {
 685             fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
 686             return 0;
 687         }
 688     }
 689
 690     vlan = qemu_find_bt_vlan(vlan_id);
 691
 692     if (!vlan->slave)
 693         fprintf(stderr, "qemu: warning: adding a slave device to "
 694                         "an empty scatternet %i\n", vlan_id);
 695
 696     if (!strcmp(devname, "keyboard"))
 697         return bt_keyboard_init(vlan);
 698
 699     fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
 700     return 0;
 701 }
 702
 703 static int bt_parse(const char *opt)
 704 {
 705     const char *endp, *p;
 706     int vlan;
 707
 708     if (strstart(opt, "hci", &endp)) {
 709         if (!*endp || *endp == ',') {
 710             if (*endp)
 711                 if (!strstart(endp, ",vlan=", 0))
 712                     opt = endp + 1;
 713
 714             return bt_hci_parse(opt);
 715        }
 716     } else if (strstart(opt, "vhci", &endp)) {
 717         if (!*endp || *endp == ',') {
 718             if (*endp) {
 719                 if (strstart(endp, ",vlan=", &p)) {
 720                     vlan = strtol(p, (char **) &endp, 0);
 721                     if (*endp) {
 722                         fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
 723                         return 1;
 724                     }
 725                 } else {
 726                     fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1);
 727                     return 1;
 728                 }
 729             } else
 730                 vlan = 0;
 731
 732             bt_vhci_add(vlan);
 733             return 0;
 734         }
 735     } else if (strstart(opt, "device:", &endp))
 736         return !bt_device_add(endp);
 737
 738     fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
 739     return 1;
 740 }
 741
 742 /***********************************************************/
 743 /* QEMU Block devices */
 744
 745 #define HD_OPTS "media=disk"
 746 #define CDROM_OPTS "media=cdrom"
 747 #define FD_OPTS ""
 748 #define PFLASH_OPTS ""
 749 #define MTD_OPTS ""
 750 #define SD_OPTS ""
 751
 752 static int drive_init_func(QemuOpts *opts, void *opaque)
 753 {
 754     int *use_scsi = opaque;
 755
 756     return drive_init(opts, *use_scsi) == NULL;
 757 }
 758
 759 static int drive_enable_snapshot(QemuOpts *opts, void *opaque)
 760 {
 761     if (NULL == qemu_opt_get(opts, "snapshot")) {
 762         qemu_opt_set(opts, "snapshot", "on");
 763     }
 764     return 0;
 765 }
 766
 767 static void default_drive(int enable, int snapshot, int use_scsi,
 768                           BlockInterfaceType type, int index,
 769                           const char *optstr)
 770 {
 771     QemuOpts *opts;
 772
 773     if (type == IF_DEFAULT) {
 774         type = use_scsi ? IF_SCSI : IF_IDE;
 775     }
 776
 777     if (!enable || drive_get_by_index(type, index)) {
 778         return;
 779     }
 780
 781     opts = drive_add(type, index, NULL, optstr);
 782     if (snapshot) {
 783         drive_enable_snapshot(opts, NULL);
 784     }
 785     if (!drive_init(opts, use_scsi)) {
 786         exit(1);
 787     }
 788 }
 789
 790 void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
 791 {
 792     boot_set_handler = func;
 793     boot_set_opaque = opaque;
 794 }
 795
 796 int qemu_boot_set(const char *boot_devices)
 797 {
 798     if (!boot_set_handler) {
 799         return -EINVAL;
 800     }
 801     return boot_set_handler(boot_set_opaque, boot_devices);
 802 }
 803
 804 static void validate_bootdevices(char *devices)
 805 {
 806     /* We just do some generic consistency checks */
 807     const char *p;
 808     int bitmap = 0;
 809
 810     for (p = devices; *p != '\0'; p++) {
 811         /* Allowed boot devices are:
 812          * a-b: floppy disk drives
 813          * c-f: IDE disk drives
 814          * g-m: machine implementation dependant drives
 815          * n-p: network devices
 816          * It's up to each machine implementation to check if the given boot
 817          * devices match the actual hardware implementation and firmware
 818          * features.
 819          */
 820         if (*p < 'a' || *p > 'p') {
 821             fprintf(stderr, "Invalid boot device '%c'\n", *p);
 822             exit(1);
 823         }
 824         if (bitmap & (1 << (*p - 'a'))) {
 825             fprintf(stderr, "Boot device '%c' was given twice\n", *p);
 826             exit(1);
 827         }
 828         bitmap |= 1 << (*p - 'a');
 829     }
 830 }
 831
 832 static void restore_boot_devices(void *opaque)
 833 {
 834     char *standard_boot_devices = opaque;
 835     static int first = 1;
 836
 837     /* Restore boot order and remove ourselves after the first boot */
 838     if (first) {
 839         first = 0;
 840         return;
 841     }
 842
 843     qemu_boot_set(standard_boot_devices);
 844
 845     qemu_unregister_reset(restore_boot_devices, standard_boot_devices);
 846     g_free(standard_boot_devices);
 847 }
 848
 849 void add_boot_device_path(int32_t bootindex, DeviceState *dev,
 850                           const char *suffix)
 851 {
 852     FWBootEntry *node, *i;
 853
 854     if (bootindex < 0) {
 855         return;
 856     }
 857
 858     assert(dev != NULL || suffix != NULL);
 859
 860     node = g_malloc0(sizeof(FWBootEntry));
 861     node->bootindex = bootindex;
 862     node->suffix = suffix ? g_strdup(suffix) : NULL;
 863     node->dev = dev;
 864
 865     QTAILQ_FOREACH(i, &fw_boot_order, link) {
 866         if (i->bootindex == bootindex) {
 867             fprintf(stderr, "Two devices with same boot index %d\n", bootindex);
 868             exit(1);
 869         } else if (i->bootindex < bootindex) {
 870             continue;
 871         }
 872         QTAILQ_INSERT_BEFORE(i, node, link);
 873         return;
 874     }
 875     QTAILQ_INSERT_TAIL(&fw_boot_order, node, link);
 876 }
 877
 878 /*
 879  * This function returns null terminated string that consist of new line
 880  * separated device paths.
 881  *
 882  * memory pointed by "size" is assigned total length of the array in bytes
 883  *
 884  */
 885 char *get_boot_devices_list(uint32_t *size)
 886 {
 887     FWBootEntry *i;
 888     uint32_t total = 0;
 889     char *list = NULL;
 890
 891     QTAILQ_FOREACH(i, &fw_boot_order, link) {
 892         char *devpath = NULL, *bootpath;
 893         int len;
 894
 895         if (i->dev) {
 896             devpath = qdev_get_fw_dev_path(i->dev);
 897             assert(devpath);
 898         }
 899
 900         if (i->suffix && devpath) {
 901             size_t bootpathlen = strlen(devpath) + strlen(i->suffix) + 1;
 902
 903             bootpath = g_malloc(bootpathlen);
 904             snprintf(bootpath, bootpathlen, "%s%s", devpath, i->suffix);
 905             g_free(devpath);
 906         } else if (devpath) {
 907             bootpath = devpath;
 908         } else {
 909             bootpath = g_strdup(i->suffix);
 910             assert(bootpath);
 911         }
 912
 913         if (total) {
 914             list[total-1] = '\n';
 915         }
 916         len = strlen(bootpath) + 1;
 917         list = g_realloc(list, total + len);
 918         memcpy(&list[total], bootpath, len);
 919         total += len;
 920         g_free(bootpath);
 921     }
 922
 923     *size = total;
 924
 925     return list;
 926 }
 927
 928 static void numa_add(const char *optarg)
 929 {
 930     char option[128];
 931     char *endptr;
 932     unsigned long long value, endvalue;
 933     int nodenr;
 934
 935     optarg = get_opt_name(option, 128, optarg, ',') + 1;
 936     if (!strcmp(option, "node")) {
 937         if (get_param_value(option, 128, "nodeid", optarg) == 0) {
 938             nodenr = nb_numa_nodes;
 939         } else {
 940             nodenr = strtoull(option, NULL, 10);
 941         }
 942
 943         if (get_param_value(option, 128, "mem", optarg) == 0) {
 944             node_mem[nodenr] = 0;
 945         } else {
 946             int64_t sval;
 947             sval = strtosz(option, NULL);
 948             if (sval < 0) {
 949                 fprintf(stderr, "qemu: invalid numa mem size: %s\n", optarg);
 950                 exit(1);
 951             }
 952             node_mem[nodenr] = sval;
 953         }
 954         if (get_param_value(option, 128, "cpus", optarg) == 0) {
 955             node_cpumask[nodenr] = 0;
 956         } else {
 957             value = strtoull(option, &endptr, 10);
 958             if (value >= 64) {
 959                 value = 63;
 960                 fprintf(stderr, "only 64 CPUs in NUMA mode supported.\n");
 961             } else {
 962                 if (*endptr == '-') {
 963                     endvalue = strtoull(endptr+1, &endptr, 10);
 964                     if (endvalue >= 63) {
 965                         endvalue = 62;
 966                         fprintf(stderr,
 967                             "only 63 CPUs in NUMA mode supported.\n");
 968                     }
 969                     value = (2ULL << endvalue) - (1ULL << value);
 970                 } else {
 971                     value = 1ULL << value;
 972                 }
 973             }
 974             node_cpumask[nodenr] = value;
 975         }
 976         nb_numa_nodes++;
 977     }
 978     return;
 979 }
 980
 981 static void smp_parse(const char *optarg)
 982 {
 983     int smp, sockets = 0, threads = 0, cores = 0;
 984     char *endptr;
 985     char option[128];
 986
 987     smp = strtoul(optarg, &endptr, 10);
 988     if (endptr != optarg) {
 989         if (*endptr == ',') {
 990             endptr++;
 991         }
 992     }
 993     if (get_param_value(option, 128, "sockets", endptr) != 0)
 994         sockets = strtoull(option, NULL, 10);
 995     if (get_param_value(option, 128, "cores", endptr) != 0)
 996         cores = strtoull(option, NULL, 10);
 997     if (get_param_value(option, 128, "threads", endptr) != 0)
 998         threads = strtoull(option, NULL, 10);
 999     if (get_param_value(option, 128, "maxcpus", endptr) != 0)
1000         max_cpus = strtoull(option, NULL, 10);
1001
1002     /* compute missing values, prefer sockets over cores over threads */
1003     if (smp == 0 || sockets == 0) {
1004         sockets = sockets > 0 ? sockets : 1;
1005         cores = cores > 0 ? cores : 1;
1006         threads = threads > 0 ? threads : 1;
1007         if (smp == 0) {
1008             smp = cores * threads * sockets;
1009         }
1010     } else {
1011         if (cores == 0) {
1012             threads = threads > 0 ? threads : 1;
1013             cores = smp / (sockets * threads);
1014         } else {
1015             threads = smp / (cores * sockets);
1016         }
1017     }
1018     smp_cpus = smp;
1019     smp_cores = cores > 0 ? cores : 1;
1020     smp_threads = threads > 0 ? threads : 1;
1021     if (max_cpus == 0)
1022         max_cpus = smp_cpus;
1023 }
1024
1025 /***********************************************************/
1026 /* USB devices */
1027
1028 static int usb_device_add(const char *devname)
1029 {
1030     const char *p;
1031     USBDevice *dev = NULL;
1032
1033     if (!usb_enabled)
1034         return -1;
1035
1036     /* drivers with .usbdevice_name entry in USBDeviceInfo */
1037     dev = usbdevice_create(devname);
1038     if (dev)
1039         goto done;
1040
1041     /* the other ones */
1042 #ifndef CONFIG_LINUX
1043     /* only the linux version is qdev-ified, usb-bsd still needs this */
1044     if (strstart(devname, "host:", &p)) {
1045         dev = usb_host_device_open(p);
1046     } else
1047 #endif
1048     if (!strcmp(devname, "bt") || strstart(devname, "bt:", &p)) {
1049         dev = usb_bt_init(devname[2] ? hci_init(p) :
1050                         bt_new_hci(qemu_find_bt_vlan(0)));
1051     } else {
1052         return -1;
1053     }
1054     if (!dev)
1055         return -1;
1056
1057 done:
1058     return 0;
1059 }
1060
1061 static int usb_device_del(const char *devname)
1062 {
1063     int bus_num, addr;
1064     const char *p;
1065
1066     if (strstart(devname, "host:", &p))
1067         return usb_host_device_close(p);
1068
1069     if (!usb_enabled)
1070         return -1;
1071
1072     p = strchr(devname, '.');
1073     if (!p)
1074         return -1;
1075     bus_num = strtoul(devname, NULL, 0);
1076     addr = strtoul(p + 1, NULL, 0);
1077
1078     return usb_device_delete_addr(bus_num, addr);
1079 }
1080
1081 static int usb_parse(const char *cmdline)
1082 {
1083     int r;
1084     r = usb_device_add(cmdline);
1085     if (r < 0) {
1086         fprintf(stderr, "qemu: could not add USB device '%s'\n", cmdline);
1087     }
1088     return r;
1089 }
1090
1091 void do_usb_add(Monitor *mon, const QDict *qdict)
1092 {
1093     const char *devname = qdict_get_str(qdict, "devname");
1094     if (usb_device_add(devname) < 0) {
1095         error_report("could not add USB device '%s'", devname);
1096     }
1097 }
1098
1099 void do_usb_del(Monitor *mon, const QDict *qdict)
1100 {
1101     const char *devname = qdict_get_str(qdict, "devname");
1102     if (usb_device_del(devname) < 0) {
1103         error_report("could not delete USB device '%s'", devname);
1104     }
1105 }
1106
1107 /***********************************************************/
1108 /* PCMCIA/Cardbus */
1109
1110 static struct pcmcia_socket_entry_s {
1111     PCMCIASocket *socket;
1112     struct pcmcia_socket_entry_s *next;
1113 } *pcmcia_sockets = 0;
1114
1115 void pcmcia_socket_register(PCMCIASocket *socket)
1116 {
1117     struct pcmcia_socket_entry_s *entry;
1118
1119     entry = g_malloc(sizeof(struct pcmcia_socket_entry_s));
1120     entry->socket = socket;
1121     entry->next = pcmcia_sockets;
1122     pcmcia_sockets = entry;
1123 }
1124
1125 void pcmcia_socket_unregister(PCMCIASocket *socket)
1126 {
1127     struct pcmcia_socket_entry_s *entry, **ptr;
1128
1129     ptr = &pcmcia_sockets;
1130     for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
1131         if (entry->socket == socket) {
1132             *ptr = entry->next;
1133             g_free(entry);
1134         }
1135 }
1136
1137 void pcmcia_info(Monitor *mon)
1138 {
1139     struct pcmcia_socket_entry_s *iter;
1140
1141     if (!pcmcia_sockets)
1142         monitor_printf(mon, "No PCMCIA sockets\n");
1143
1144     for (iter = pcmcia_sockets; iter; iter = iter->next)
1145         monitor_printf(mon, "%s: %s\n", iter->socket->slot_string,
1146                        iter->socket->attached ? iter->socket->card_string :
1147                        "Empty");
1148 }
1149
1150 /***********************************************************/
1151 /* machine registration */
1152
1153 static QEMUMachine *first_machine = NULL;
1154 QEMUMachine *current_machine = NULL;
1155
1156 int qemu_register_machine(QEMUMachine *m)
1157 {
1158     QEMUMachine **pm;
1159     pm = &first_machine;
1160     while (*pm != NULL)
1161         pm = &(*pm)->next;
1162     m->next = NULL;
1163     *pm = m;
1164     return 0;
1165 }
1166
1167 static QEMUMachine *find_machine(const char *name)
1168 {
1169     QEMUMachine *m;
1170
1171     for(m = first_machine; m != NULL; m = m->next) {
1172         if (!strcmp(m->name, name))
1173             return m;
1174         if (m->alias && !strcmp(m->alias, name))
1175             return m;
1176     }
1177     return NULL;
1178 }
1179
1180 static QEMUMachine *find_default_machine(void)
1181 {
1182     QEMUMachine *m;
1183
1184     for(m = first_machine; m != NULL; m = m->next) {
1185         if (m->is_default) {
1186             return m;
1187         }
1188     }
1189     return NULL;
1190 }
1191
1192 /***********************************************************/
1193 /* main execution loop */
1194
1195 static void gui_update(void *opaque)
1196 {
1197     uint64_t interval = GUI_REFRESH_INTERVAL;
1198     DisplayState *ds = opaque;
1199     DisplayChangeListener *dcl = ds->listeners;
1200
1201     dpy_refresh(ds);
1202
1203     while (dcl != NULL) {
1204         if (dcl->gui_timer_interval &&
1205             dcl->gui_timer_interval < interval)
1206             interval = dcl->gui_timer_interval;
1207         dcl = dcl->next;
1208     }
1209     qemu_mod_timer(ds->gui_timer, interval + qemu_get_clock_ms(rt_clock));
1210 }
1211
1212 struct vm_change_state_entry {
1213     VMChangeStateHandler *cb;
1214     void *opaque;
1215     QLIST_ENTRY (vm_change_state_entry) entries;
1216 };
1217
1218 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1219
1220 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1221                                                      void *opaque)
1222 {
1223     VMChangeStateEntry *e;
1224
1225     e = g_malloc0(sizeof (*e));
1226
1227     e->cb = cb;
1228     e->opaque = opaque;
1229     QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1230     return e;
1231 }
1232
1233 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1234 {
1235     QLIST_REMOVE (e, entries);
1236     g_free (e);
1237 }
1238
1239 void vm_state_notify(int running, RunState state)
1240 {
1241     VMChangeStateEntry *e;
1242
1243     trace_vm_state_notify(running, state);
1244
1245     for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
1246         e->cb(e->opaque, running, state);
1247     }
1248 }
1249
1250 void vm_start(void)
1251 {
1252     if (!runstate_is_running()) {
1253         cpu_enable_ticks();
1254         runstate_set(RUN_STATE_RUNNING);
1255         vm_state_notify(1, RUN_STATE_RUNNING);
1256         resume_all_vcpus();
1257         monitor_protocol_event(QEVENT_RESUME, NULL);
1258     }
1259 }
1260
1261 /* reset/shutdown handler */
1262
1263 typedef struct QEMUResetEntry {
1264     QTAILQ_ENTRY(QEMUResetEntry) entry;
1265     QEMUResetHandler *func;
1266     void *opaque;
1267 } QEMUResetEntry;
1268
1269 static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
1270     QTAILQ_HEAD_INITIALIZER(reset_handlers);
1271 static int reset_requested;
1272 static int shutdown_requested, shutdown_signal = -1;
1273 static pid_t shutdown_pid;
1274 static int powerdown_requested;
1275 static int debug_requested;
1276 static RunState vmstop_requested = RUN_STATE_MAX;
1277
1278 int qemu_shutdown_requested_get(void)
1279 {
1280     return shutdown_requested;
1281 }
1282
1283 int qemu_reset_requested_get(void)
1284 {
1285     return reset_requested;
1286 }
1287
1288 int qemu_shutdown_requested(void)
1289 {
1290     int r = shutdown_requested;
1291     shutdown_requested = 0;
1292     return r;
1293 }
1294
1295 void qemu_kill_report(void)
1296 {
1297     if (shutdown_signal != -1) {
1298         fprintf(stderr, "qemu: terminating on signal %d", shutdown_signal);
1299         if (shutdown_pid == 0) {
1300             /* This happens for eg ^C at the terminal, so it's worth
1301              * avoiding printing an odd message in that case.
1302              */
1303             fputc('\n', stderr);
1304         } else {
1305             fprintf(stderr, " from pid " FMT_pid "\n", shutdown_pid);
1306         }
1307         shutdown_signal = -1;
1308     }
1309 }
1310
1311 int qemu_reset_requested(void)
1312 {
1313     int r = reset_requested;
1314     reset_requested = 0;
1315     return r;
1316 }
1317
1318 int qemu_powerdown_requested(void)
1319 {
1320     int r = powerdown_requested;
1321     powerdown_requested = 0;
1322     return r;
1323 }
1324
1325 static int qemu_debug_requested(void)
1326 {
1327     int r = debug_requested;
1328     debug_requested = 0;
1329     return r;
1330 }
1331
1332 /* We use RUN_STATE_MAX but any invalid value will do */
1333 static bool qemu_vmstop_requested(RunState *r)
1334 {
1335     if (vmstop_requested < RUN_STATE_MAX) {
1336         *r = vmstop_requested;
1337         vmstop_requested = RUN_STATE_MAX;
1338         return true;
1339     }
1340
1341     return false;
1342 }
1343
1344 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
1345 {
1346     QEMUResetEntry *re = g_malloc0(sizeof(QEMUResetEntry));
1347
1348     re->func = func;
1349     re->opaque = opaque;
1350     QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
1351 }
1352
1353 void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
1354 {
1355     QEMUResetEntry *re;
1356
1357     QTAILQ_FOREACH(re, &reset_handlers, entry) {
1358         if (re->func == func && re->opaque == opaque) {
1359             QTAILQ_REMOVE(&reset_handlers, re, entry);
1360             g_free(re);
1361             return;
1362         }
1363     }
1364 }
1365
1366 void qemu_system_reset(bool report)
1367 {
1368     QEMUResetEntry *re, *nre;
1369
1370     /* reset all devices */
1371     QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
1372         re->func(re->opaque);
1373     }
1374     if (report) {
1375         monitor_protocol_event(QEVENT_RESET, NULL);
1376     }
1377     cpu_synchronize_all_post_reset();
1378 }
1379
1380 void qemu_system_reset_request(void)
1381 {
1382     if (no_reboot) {
1383         shutdown_requested = 1;
1384     } else {
1385         reset_requested = 1;
1386     }
1387     cpu_stop_current();
1388     qemu_notify_event();
1389 }
1390
1391 void qemu_system_killed(int signal, pid_t pid)
1392 {
1393     shutdown_signal = signal;
1394     shutdown_pid = pid;
1395     no_shutdown = 0;
1396     qemu_system_shutdown_request();
1397 }
1398
1399 void qemu_system_shutdown_request(void)
1400 {
1401     shutdown_requested = 1;
1402     qemu_notify_event();
1403 }
1404
1405 void qemu_system_powerdown_request(void)
1406 {
1407     powerdown_requested = 1;
1408     qemu_notify_event();
1409 }
1410
1411 void qemu_system_debug_request(void)
1412 {
1413     debug_requested = 1;
1414     qemu_notify_event();
1415 }
1416
1417 void qemu_system_vmstop_request(RunState state)
1418 {
1419     vmstop_requested = state;
1420     qemu_notify_event();
1421 }
1422
1423 static GPollFD poll_fds[1024 * 2]; /* this is probably overkill */
1424 static int n_poll_fds;
1425 static int max_priority;
1426
1427 static void glib_select_fill(int *max_fd, fd_set *rfds, fd_set *wfds,
1428                              fd_set *xfds, struct timeval *tv)
1429 {
1430     GMainContext *context = g_main_context_default();
1431     int i;
1432     int timeout = 0, cur_timeout;
1433
1434     g_main_context_prepare(context, &max_priority);
1435
1436     n_poll_fds = g_main_context_query(context, max_priority, &timeout,
1437                                       poll_fds, ARRAY_SIZE(poll_fds));
1438     g_assert(n_poll_fds <= ARRAY_SIZE(poll_fds));
1439
1440     for (i = 0; i < n_poll_fds; i++) {
1441         GPollFD *p = &poll_fds[i];
1442
1443         if ((p->events & G_IO_IN)) {
1444             FD_SET(p->fd, rfds);
1445             *max_fd = MAX(*max_fd, p->fd);
1446         }
1447         if ((p->events & G_IO_OUT)) {
1448             FD_SET(p->fd, wfds);
1449             *max_fd = MAX(*max_fd, p->fd);
1450         }
1451         if ((p->events & G_IO_ERR)) {
1452             FD_SET(p->fd, xfds);
1453             *max_fd = MAX(*max_fd, p->fd);
1454         }
1455     }
1456
1457     cur_timeout = (tv->tv_sec * 1000) + ((tv->tv_usec + 500) / 1000);
1458     if (timeout >= 0 && timeout < cur_timeout) {
1459         tv->tv_sec = timeout / 1000;
1460         tv->tv_usec = (timeout % 1000) * 1000;
1461     }
1462 }
1463
1464 static void glib_select_poll(fd_set *rfds, fd_set *wfds, fd_set *xfds,
1465                              bool err)
1466 {
1467     GMainContext *context = g_main_context_default();
1468
1469     if (!err) {
1470         int i;
1471
1472         for (i = 0; i < n_poll_fds; i++) {
1473             GPollFD *p = &poll_fds[i];
1474
1475             if ((p->events & G_IO_IN) && FD_ISSET(p->fd, rfds)) {
1476                 p->revents |= G_IO_IN;
1477             }
1478             if ((p->events & G_IO_OUT) && FD_ISSET(p->fd, wfds)) {
1479                 p->revents |= G_IO_OUT;
1480             }
1481             if ((p->events & G_IO_ERR) && FD_ISSET(p->fd, xfds)) {
1482                 p->revents |= G_IO_ERR;
1483             }
1484         }
1485     }
1486
1487     if (g_main_context_check(context, max_priority, poll_fds, n_poll_fds)) {
1488         g_main_context_dispatch(context);
1489     }
1490 }
1491
1492 int main_loop_wait(int nonblocking)
1493 {
1494     fd_set rfds, wfds, xfds;
1495     int ret, nfds;
1496     struct timeval tv;
1497     int timeout;
1498
1499     if (nonblocking)
1500         timeout = 0;
1501     else {
1502         timeout = qemu_calculate_timeout();
1503         qemu_bh_update_timeout(&timeout);
1504     }
1505
1506     os_host_main_loop_wait(&timeout);
1507
1508     tv.tv_sec = timeout / 1000;
1509     tv.tv_usec = (timeout % 1000) * 1000;
1510
1511     /* poll any events */
1512     /* XXX: separate device handlers from system ones */
1513     nfds = -1;
1514     FD_ZERO(&rfds);
1515     FD_ZERO(&wfds);
1516     FD_ZERO(&xfds);
1517
1518     qemu_iohandler_fill(&nfds, &rfds, &wfds, &xfds);
1519     slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
1520     glib_select_fill(&nfds, &rfds, &wfds, &xfds, &tv);
1521
1522     if (timeout > 0) {
1523         qemu_mutex_unlock_iothread();
1524     }
1525
1526     ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
1527
1528     if (timeout > 0) {
1529         qemu_mutex_lock_iothread();
1530     }
1531
1532     qemu_iohandler_poll(&rfds, &wfds, &xfds, ret);
1533     slirp_select_poll(&rfds, &wfds, &xfds, (ret < 0));
1534     glib_select_poll(&rfds, &wfds, &xfds, (ret < 0));
1535
1536     qemu_run_all_timers();
1537
1538     /* Check bottom-halves last in case any of the earlier events triggered
1539        them.  */
1540     qemu_bh_poll();
1541
1542     return ret;
1543 }
1544
1545 qemu_irq qemu_system_powerdown;
1546
1547 static void main_loop(void)
1548 {
1549     bool nonblocking;
1550     int last_io __attribute__ ((unused)) = 0;
1551 #ifdef CONFIG_PROFILER
1552     int64_t ti;
1553 #endif
1554     RunState r;
1555
1556     qemu_main_loop_start();
1557
1558     for (;;) {
1559         nonblocking = !kvm_enabled() && last_io > 0;
1560 #ifdef CONFIG_PROFILER
1561         ti = profile_getclock();
1562 #endif
1563         last_io = main_loop_wait(nonblocking);
1564 #ifdef CONFIG_PROFILER
1565         dev_time += profile_getclock() - ti;
1566 #endif
1567
1568         if (qemu_debug_requested()) {
1569             vm_stop(RUN_STATE_DEBUG);
1570         }
1571         if (qemu_shutdown_requested()) {
1572             qemu_kill_report();
1573             monitor_protocol_event(QEVENT_SHUTDOWN, NULL);
1574             if (no_shutdown) {
1575                 vm_stop(RUN_STATE_SHUTDOWN);
1576             } else
1577                 break;
1578         }
1579         if (qemu_reset_requested()) {
1580             pause_all_vcpus();
1581             cpu_synchronize_all_states();
1582             qemu_system_reset(VMRESET_REPORT);
1583             resume_all_vcpus();
1584             if (runstate_check(RUN_STATE_INTERNAL_ERROR) ||
1585                 runstate_check(RUN_STATE_SHUTDOWN)) {
1586                 runstate_set(RUN_STATE_PAUSED);
1587             }
1588         }
1589         if (qemu_powerdown_requested()) {
1590             monitor_protocol_event(QEVENT_POWERDOWN, NULL);
1591             qemu_irq_raise(qemu_system_powerdown);
1592         }
1593         if (qemu_vmstop_requested(&r)) {
1594             vm_stop(r);
1595         }
1596     }
1597     bdrv_close_all();
1598     pause_all_vcpus();
1599 }
1600
1601 static void version(void)
1602 {
1603     printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
1604 }
1605
1606 static void help(int exitcode)
1607 {
1608     const char *options_help =
1609 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask)     \
1610         opt_help
1611 #define DEFHEADING(text) stringify(text) "\n"
1612 #include "qemu-options.def"
1613 #undef DEF
1614 #undef DEFHEADING
1615 #undef GEN_DOCS
1616         ;
1617     version();
1618     printf("usage: %s [options] [disk_image]\n"
1619            "\n"
1620            "'disk_image' is a raw hard disk image for IDE hard disk 0\n"
1621            "\n"
1622            "%s\n"
1623            "During emulation, the following keys are useful:\n"
1624            "ctrl-alt-f      toggle full screen\n"
1625            "ctrl-alt-n      switch to virtual console 'n'\n"
1626            "ctrl-alt        toggle mouse and keyboard grab\n"
1627            "\n"
1628            "When using -nographic, press 'ctrl-a h' to get some help.\n",
1629            "qemu",
1630            options_help);
1631     exit(exitcode);
1632 }
1633
1634 #define HAS_ARG 0x0001
1635
1636 typedef struct QEMUOption {
1637     const char *name;
1638     int flags;
1639     int index;
1640     uint32_t arch_mask;
1641 } QEMUOption;
1642
1643 static const QEMUOption qemu_options[] = {
1644     { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1645 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask)     \
1646     { option, opt_arg, opt_enum, arch_mask },
1647 #define DEFHEADING(text)
1648 #include "qemu-options.def"
1649 #undef DEF
1650 #undef DEFHEADING
1651 #undef GEN_DOCS
1652     { NULL },
1653 };
1654 static void select_vgahw (const char *p)
1655 {
1656     const char *opts;
1657
1658     default_vga = 0;
1659     vga_interface_type = VGA_NONE;
1660     if (strstart(p, "std", &opts)) {
1661         vga_interface_type = VGA_STD;
1662     } else if (strstart(p, "cirrus", &opts)) {
1663         vga_interface_type = VGA_CIRRUS;
1664     } else if (strstart(p, "vmware", &opts)) {
1665         vga_interface_type = VGA_VMWARE;
1666     } else if (strstart(p, "xenfb", &opts)) {
1667         vga_interface_type = VGA_XENFB;
1668     } else if (strstart(p, "qxl", &opts)) {
1669         vga_interface_type = VGA_QXL;
1670     } else if (!strstart(p, "none", &opts)) {
1671     invalid_vga:
1672         fprintf(stderr, "Unknown vga type: %s\n", p);
1673         exit(1);
1674     }
1675     while (*opts) {
1676         const char *nextopt;
1677
1678         if (strstart(opts, ",retrace=", &nextopt)) {
1679             opts = nextopt;
1680             if (strstart(opts, "dumb", &nextopt))
1681                 vga_retrace_method = VGA_RETRACE_DUMB;
1682             else if (strstart(opts, "precise", &nextopt))
1683                 vga_retrace_method = VGA_RETRACE_PRECISE;
1684             else goto invalid_vga;
1685         } else goto invalid_vga;
1686         opts = nextopt;
1687     }
1688 }
1689
1690 static DisplayType select_display(const char *p)
1691 {
1692     const char *opts;
1693     DisplayType display = DT_DEFAULT;
1694
1695     if (strstart(p, "sdl", &opts)) {
1696 #ifdef CONFIG_SDL
1697         display = DT_SDL;
1698         while (*opts) {
1699             const char *nextopt;
1700
1701             if (strstart(opts, ",frame=", &nextopt)) {
1702                 opts = nextopt;
1703                 if (strstart(opts, "on", &nextopt)) {
1704                     no_frame = 0;
1705                 } else if (strstart(opts, "off", &nextopt)) {
1706                     no_frame = 1;
1707                 } else {
1708                     goto invalid_sdl_args;
1709                 }
1710             } else if (strstart(opts, ",alt_grab=", &nextopt)) {
1711                 opts = nextopt;
1712                 if (strstart(opts, "on", &nextopt)) {
1713                     alt_grab = 1;
1714                 } else if (strstart(opts, "off", &nextopt)) {
1715                     alt_grab = 0;
1716                 } else {
1717                     goto invalid_sdl_args;
1718                 }
1719             } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
1720                 opts = nextopt;
1721                 if (strstart(opts, "on", &nextopt)) {
1722                     ctrl_grab = 1;
1723                 } else if (strstart(opts, "off", &nextopt)) {
1724                     ctrl_grab = 0;
1725                 } else {
1726                     goto invalid_sdl_args;
1727                 }
1728             } else if (strstart(opts, ",window_close=", &nextopt)) {
1729                 opts = nextopt;
1730                 if (strstart(opts, "on", &nextopt)) {
1731                     no_quit = 0;
1732                 } else if (strstart(opts, "off", &nextopt)) {
1733                     no_quit = 1;
1734                 } else {
1735                     goto invalid_sdl_args;
1736                 }
1737             } else {
1738             invalid_sdl_args:
1739                 fprintf(stderr, "Invalid SDL option string: %s\n", p);
1740                 exit(1);
1741             }
1742             opts = nextopt;
1743         }
1744 #else
1745         fprintf(stderr, "SDL support is disabled\n");
1746         exit(1);
1747 #endif
1748     } else if (strstart(p, "vnc", &opts)) {
1749 #ifdef CONFIG_VNC
1750         display_remote++;
1751
1752         if (*opts) {
1753             const char *nextopt;
1754
1755             if (strstart(opts, "=", &nextopt)) {
1756                 vnc_display = nextopt;
1757             }
1758         }
1759         if (!vnc_display) {
1760             fprintf(stderr, "VNC requires a display argument vnc=<display>\n");
1761             exit(1);
1762         }
1763 #else
1764         fprintf(stderr, "VNC support is disabled\n");
1765         exit(1);
1766 #endif
1767     } else if (strstart(p, "curses", &opts)) {
1768 #ifdef CONFIG_CURSES
1769         display = DT_CURSES;
1770 #else
1771         fprintf(stderr, "Curses support is disabled\n");
1772         exit(1);
1773 #endif
1774     } else if (strstart(p, "none", &opts)) {
1775         display = DT_NONE;
1776     } else {
1777         fprintf(stderr, "Unknown display type: %s\n", p);
1778         exit(1);
1779     }
1780
1781     return display;
1782 }
1783
1784 static int balloon_parse(const char *arg)
1785 {
1786     QemuOpts *opts;
1787
1788     if (strcmp(arg, "none") == 0) {
1789         return 0;
1790     }
1791
1792     if (!strncmp(arg, "virtio", 6)) {
1793         if (arg[6] == ',') {
1794             /* have params -> parse them */
1795             opts = qemu_opts_parse(qemu_find_opts("device"), arg+7, 0);
1796             if (!opts)
1797                 return  -1;
1798         } else {
1799             /* create empty opts */
1800             opts = qemu_opts_create(qemu_find_opts("device"), NULL, 0);
1801         }
1802         qemu_opt_set(opts, "driver", "virtio-balloon");
1803         return 0;
1804     }
1805
1806     return -1;
1807 }
1808
1809 char *qemu_find_file(int type, const char *name)
1810 {
1811     int len;
1812     const char *subdir;
1813     char *buf;
1814
1815     /* If name contains path separators then try it as a straight path.  */
1816     if ((strchr(name, '/') || strchr(name, '\\'))
1817         && access(name, R_OK) == 0) {
1818         return g_strdup(name);
1819     }
1820     switch (type) {
1821     case QEMU_FILE_TYPE_BIOS:
1822         subdir = "";
1823         break;
1824     case QEMU_FILE_TYPE_KEYMAP:
1825         subdir = "keymaps/";
1826         break;
1827     default:
1828         abort();
1829     }
1830     len = strlen(data_dir) + strlen(name) + strlen(subdir) + 2;
1831     buf = g_malloc0(len);
1832     snprintf(buf, len, "%s/%s%s", data_dir, subdir, name);
1833     if (access(buf, R_OK)) {
1834         g_free(buf);
1835         return NULL;
1836     }
1837     return buf;
1838 }
1839
1840 static int device_help_func(QemuOpts *opts, void *opaque)
1841 {
1842     return qdev_device_help(opts);
1843 }
1844
1845 static int device_init_func(QemuOpts *opts, void *opaque)
1846 {
1847     DeviceState *dev;
1848
1849     dev = qdev_device_add(opts);
1850     if (!dev)
1851         return -1;
1852     return 0;
1853 }
1854
1855 static int chardev_init_func(QemuOpts *opts, void *opaque)
1856 {
1857     CharDriverState *chr;
1858
1859     chr = qemu_chr_new_from_opts(opts, NULL);
1860     if (!chr)
1861         return -1;
1862     return 0;
1863 }
1864
1865 #ifdef CONFIG_VIRTFS
1866 static int fsdev_init_func(QemuOpts *opts, void *opaque)
1867 {
1868     int ret;
1869     ret = qemu_fsdev_add(opts);
1870
1871     return ret;
1872 }
1873 #endif
1874
1875 static int mon_init_func(QemuOpts *opts, void *opaque)
1876 {
1877     CharDriverState *chr;
1878     const char *chardev;
1879     const char *mode;
1880     int flags;
1881
1882     mode = qemu_opt_get(opts, "mode");
1883     if (mode == NULL) {
1884         mode = "readline";
1885     }
1886     if (strcmp(mode, "readline") == 0) {
1887         flags = MONITOR_USE_READLINE;
1888     } else if (strcmp(mode, "control") == 0) {
1889         flags = MONITOR_USE_CONTROL;
1890     } else {
1891         fprintf(stderr, "unknown monitor mode \"%s\"\n", mode);
1892         exit(1);
1893     }
1894
1895     if (qemu_opt_get_bool(opts, "pretty", 0))
1896         flags |= MONITOR_USE_PRETTY;
1897
1898     if (qemu_opt_get_bool(opts, "default", 0))
1899         flags |= MONITOR_IS_DEFAULT;
1900
1901     chardev = qemu_opt_get(opts, "chardev");
1902     chr = qemu_chr_find(chardev);
1903     if (chr == NULL) {
1904         fprintf(stderr, "chardev \"%s\" not found\n", chardev);
1905         exit(1);
1906     }
1907
1908     monitor_init(chr, flags);
1909     return 0;
1910 }
1911
1912 static void monitor_parse(const char *optarg, const char *mode)
1913 {
1914     static int monitor_device_index = 0;
1915     QemuOpts *opts;
1916     const char *p;
1917     char label[32];
1918     int def = 0;
1919
1920     if (strstart(optarg, "chardev:", &p)) {
1921         snprintf(label, sizeof(label), "%s", p);
1922     } else {
1923         snprintf(label, sizeof(label), "compat_monitor%d",
1924                  monitor_device_index);
1925         if (monitor_device_index == 0) {
1926             def = 1;
1927         }
1928         opts = qemu_chr_parse_compat(label, optarg);
1929         if (!opts) {
1930             fprintf(stderr, "parse error: %s\n", optarg);
1931             exit(1);
1932         }
1933     }
1934
1935     opts = qemu_opts_create(qemu_find_opts("mon"), label, 1);
1936     if (!opts) {
1937         fprintf(stderr, "duplicate chardev: %s\n", label);
1938         exit(1);
1939     }
1940     qemu_opt_set(opts, "mode", mode);
1941     qemu_opt_set(opts, "chardev", label);
1942     if (def)
1943         qemu_opt_set(opts, "default", "on");
1944     monitor_device_index++;
1945 }
1946
1947 struct device_config {
1948     enum {
1949         DEV_USB,       /* -usbdevice     */
1950         DEV_BT,        /* -bt            */
1951         DEV_SERIAL,    /* -serial        */
1952         DEV_PARALLEL,  /* -parallel      */
1953         DEV_VIRTCON,   /* -virtioconsole */
1954         DEV_DEBUGCON,  /* -debugcon */
1955     } type;
1956     const char *cmdline;
1957     QTAILQ_ENTRY(device_config) next;
1958 };
1959 QTAILQ_HEAD(, device_config) device_configs = QTAILQ_HEAD_INITIALIZER(device_configs);
1960
1961 static void add_device_config(int type, const char *cmdline)
1962 {
1963     struct device_config *conf;
1964
1965     conf = g_malloc0(sizeof(*conf));
1966     conf->type = type;
1967     conf->cmdline = cmdline;
1968     QTAILQ_INSERT_TAIL(&device_configs, conf, next);
1969 }
1970
1971 static int foreach_device_config(int type, int (*func)(const char *cmdline))
1972 {
1973     struct device_config *conf;
1974     int rc;
1975
1976     QTAILQ_FOREACH(conf, &device_configs, next) {
1977         if (conf->type != type)
1978             continue;
1979         rc = func(conf->cmdline);
1980         if (0 != rc)
1981             return rc;
1982     }
1983     return 0;
1984 }
1985
1986 static int serial_parse(const char *devname)
1987 {
1988     static int index = 0;
1989     char label[32];
1990
1991     if (strcmp(devname, "none") == 0)
1992         return 0;
1993     if (index == MAX_SERIAL_PORTS) {
1994         fprintf(stderr, "qemu: too many serial ports\n");
1995         exit(1);
1996     }
1997     snprintf(label, sizeof(label), "serial%d", index);
1998     serial_hds[index] = qemu_chr_new(label, devname, NULL);
1999     if (!serial_hds[index]) {
2000         fprintf(stderr, "qemu: could not open serial device '%s': %s\n",
2001                 devname, strerror(errno));
2002         return -1;
2003     }
2004     index++;
2005     return 0;
2006 }
2007
2008 static int parallel_parse(const char *devname)
2009 {
2010     static int index = 0;
2011     char label[32];
2012
2013     if (strcmp(devname, "none") == 0)
2014         return 0;
2015     if (index == MAX_PARALLEL_PORTS) {
2016         fprintf(stderr, "qemu: too many parallel ports\n");
2017         exit(1);
2018     }
2019     snprintf(label, sizeof(label), "parallel%d", index);
2020     parallel_hds[index] = qemu_chr_new(label, devname, NULL);
2021     if (!parallel_hds[index]) {
2022         fprintf(stderr, "qemu: could not open parallel device '%s': %s\n",
2023                 devname, strerror(errno));
2024         return -1;
2025     }
2026     index++;
2027     return 0;
2028 }
2029
2030 static int virtcon_parse(const char *devname)
2031 {
2032     QemuOptsList *device = qemu_find_opts("device");
2033     static int index = 0;
2034     char label[32];
2035     QemuOpts *bus_opts, *dev_opts;
2036
2037     if (strcmp(devname, "none") == 0)
2038         return 0;
2039     if (index == MAX_VIRTIO_CONSOLES) {
2040         fprintf(stderr, "qemu: too many virtio consoles\n");
2041         exit(1);
2042     }
2043
2044     bus_opts = qemu_opts_create(device, NULL, 0);
2045     qemu_opt_set(bus_opts, "driver", "virtio-serial");
2046
2047     dev_opts = qemu_opts_create(device, NULL, 0);
2048     qemu_opt_set(dev_opts, "driver", "virtconsole");
2049
2050     snprintf(label, sizeof(label), "virtcon%d", index);
2051     virtcon_hds[index] = qemu_chr_new(label, devname, NULL);
2052     if (!virtcon_hds[index]) {
2053         fprintf(stderr, "qemu: could not open virtio console '%s': %s\n",
2054                 devname, strerror(errno));
2055         return -1;
2056     }
2057     qemu_opt_set(dev_opts, "chardev", label);
2058
2059     index++;
2060     return 0;
2061 }
2062
2063 static int debugcon_parse(const char *devname)
2064 {
2065     QemuOpts *opts;
2066
2067     if (!qemu_chr_new("debugcon", devname, NULL)) {
2068         exit(1);
2069     }
2070     opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1);
2071     if (!opts) {
2072         fprintf(stderr, "qemu: already have a debugcon device\n");
2073         exit(1);
2074     }
2075     qemu_opt_set(opts, "driver", "isa-debugcon");
2076     qemu_opt_set(opts, "chardev", "debugcon");
2077     return 0;
2078 }
2079
2080 static QEMUMachine *machine_parse(const char *name)
2081 {
2082     QEMUMachine *m, *machine = NULL;
2083
2084     if (name) {
2085         machine = find_machine(name);
2086     }
2087     if (machine) {
2088         return machine;
2089     }
2090     printf("Supported machines are:\n");
2091     for (m = first_machine; m != NULL; m = m->next) {
2092         if (m->alias) {
2093             printf("%-10s %s (alias of %s)\n", m->alias, m->desc, m->name);
2094         }
2095         printf("%-10s %s%s\n", m->name, m->desc,
2096                m->is_default ? " (default)" : "");
2097     }
2098     exit(!name || *name != '?');
2099 }
2100
2101 static int tcg_init(void)
2102 {
2103     tcg_exec_init(tcg_tb_size * 1024 * 1024);
2104     return 0;
2105 }
2106
2107 static struct {
2108     const char *opt_name;
2109     const char *name;
2110     int (*available)(void);
2111     int (*init)(void);
2112     int *allowed;
2113 } accel_list[] = {
2114     { "tcg", "tcg", tcg_available, tcg_init, &tcg_allowed },
2115     { "xen", "Xen", xen_available, xen_init, &xen_allowed },
2116     { "kvm", "KVM", kvm_available, kvm_init, &kvm_allowed },
2117 };
2118
2119 static int configure_accelerator(void)
2120 {
2121     const char *p = NULL;
2122     char buf[10];
2123     int i, ret;
2124     bool accel_initalised = 0;
2125     bool init_failed = 0;
2126
2127     QemuOptsList *list = qemu_find_opts("machine");
2128     if (!QTAILQ_EMPTY(&list->head)) {
2129         p = qemu_opt_get(QTAILQ_FIRST(&list->head), "accel");
2130     }
2131
2132     if (p == NULL) {
2133         /* Use the default "accelerator", tcg */
2134         p = "tcg";
2135     }
2136
2137     while (!accel_initalised && *p != '\0') {
2138         if (*p == ':') {
2139             p++;
2140         }
2141         p = get_opt_name(buf, sizeof (buf), p, ':');
2142         for (i = 0; i < ARRAY_SIZE(accel_list); i++) {
2143             if (strcmp(accel_list[i].opt_name, buf) == 0) {
2144                 *(accel_list[i].allowed) = 1;
2145                 ret = accel_list[i].init();
2146                 if (ret < 0) {
2147                     init_failed = 1;
2148                     if (!accel_list[i].available()) {
2149                         printf("%s not supported for this target\n",
2150                                accel_list[i].name);
2151                     } else {
2152                         fprintf(stderr, "failed to initialize %s: %s\n",
2153                                 accel_list[i].name,
2154                                 strerror(-ret));
2155                     }
2156                     *(accel_list[i].allowed) = 0;
2157                 } else {
2158                     accel_initalised = 1;
2159                 }
2160                 break;
2161             }
2162         }
2163         if (i == ARRAY_SIZE(accel_list)) {
2164             fprintf(stderr, "\"%s\" accelerator does not exist.\n", buf);
2165         }
2166     }
2167
2168     if (!accel_initalised) {
2169         fprintf(stderr, "No accelerator found!\n");
2170         exit(1);
2171     }
2172
2173     if (init_failed) {
2174         fprintf(stderr, "Back to %s accelerator.\n", accel_list[i].name);
2175     }
2176
2177     return !accel_initalised;
2178 }
2179
2180 void qemu_add_exit_notifier(Notifier *notify)
2181 {
2182     notifier_list_add(&exit_notifiers, notify);
2183 }
2184
2185 void qemu_remove_exit_notifier(Notifier *notify)
2186 {
2187     notifier_list_remove(&exit_notifiers, notify);
2188 }
2189
2190 static void qemu_run_exit_notifiers(void)
2191 {
2192     notifier_list_notify(&exit_notifiers, NULL);
2193 }
2194
2195 void qemu_add_machine_init_done_notifier(Notifier *notify)
2196 {
2197     notifier_list_add(&machine_init_done_notifiers, notify);
2198 }
2199
2200 static void qemu_run_machine_init_done_notifiers(void)
2201 {
2202     notifier_list_notify(&machine_init_done_notifiers, NULL);
2203 }
2204
2205 static const QEMUOption *lookup_opt(int argc, char **argv,
2206                                     const char **poptarg, int *poptind)
2207 {
2208     const QEMUOption *popt;
2209     int optind = *poptind;
2210     char *r = argv[optind];
2211     const char *optarg;
2212
2213     loc_set_cmdline(argv, optind, 1);
2214     optind++;
2215     /* Treat --foo the same as -foo.  */
2216     if (r[1] == '-')
2217         r++;
2218     popt = qemu_options;
2219     for(;;) {
2220         if (!popt->name) {
2221             error_report("invalid option");
2222             exit(1);
2223         }
2224         if (!strcmp(popt->name, r + 1))
2225             break;
2226         popt++;
2227     }
2228     if (popt->flags & HAS_ARG) {
2229         if (optind >= argc) {
2230             error_report("requires an argument");
2231             exit(1);
2232         }
2233         optarg = argv[optind++];
2234         loc_set_cmdline(argv, optind - 2, 2);
2235     } else {
2236         optarg = NULL;
2237     }
2238
2239     *poptarg = optarg;
2240     *poptind = optind;
2241
2242     return popt;
2243 }
2244
2245 static gpointer malloc_and_trace(gsize n_bytes)
2246 {
2247     void *ptr = malloc(n_bytes);
2248     trace_g_malloc(n_bytes, ptr);
2249     return ptr;
2250 }
2251
2252 static gpointer realloc_and_trace(gpointer mem, gsize n_bytes)
2253 {
2254     void *ptr = realloc(mem, n_bytes);
2255     trace_g_realloc(mem, n_bytes, ptr);
2256     return ptr;
2257 }
2258
2259 static void free_and_trace(gpointer mem)
2260 {
2261     trace_g_free(mem);
2262     free(mem);
2263 }
2264
2265 int main(int argc, char **argv, char **envp)
2266 {
2267     const char *gdbstub_dev = NULL;
2268     int i;
2269     int snapshot, linux_boot;
2270     const char *icount_option = NULL;
2271     const char *initrd_filename;
2272     const char *kernel_filename, *kernel_cmdline;
2273     char boot_devices[33] = "cad"; /* default to HD->floppy->CD-ROM */
2274     DisplayState *ds;
2275     DisplayChangeListener *dcl;
2276     int cyls, heads, secs, translation;
2277     QemuOpts *hda_opts = NULL, *opts;
2278     QemuOptsList *olist;
2279     int optind;
2280     const char *optarg;
2281     const char *loadvm = NULL;
2282     QEMUMachine *machine;
2283     const char *cpu_model;
2284     const char *pid_file = NULL;
2285     const char *incoming = NULL;
2286 #ifdef CONFIG_VNC
2287     int show_vnc_port = 0;
2288 #endif
2289     int defconfig = 1;
2290     const char *log_mask = NULL;
2291     const char *log_file = NULL;
2292     GMemVTable mem_trace = {
2293         .malloc = malloc_and_trace,
2294         .realloc = realloc_and_trace,
2295         .free = free_and_trace,
2296     };
2297     const char *trace_events = NULL;
2298     const char *trace_file = NULL;
2299
2300     atexit(qemu_run_exit_notifiers);
2301     error_set_progname(argv[0]);
2302
2303     g_mem_set_vtable(&mem_trace);
2304     g_thread_init(NULL);
2305
2306     runstate_init();
2307
2308     init_clocks();
2309
2310     qemu_cache_utils_init(envp);
2311
2312     QLIST_INIT (&vm_change_state_head);
2313     os_setup_early_signal_handling();
2314
2315     module_call_init(MODULE_INIT_MACHINE);
2316     machine = find_default_machine();
2317     cpu_model = NULL;
2318     initrd_filename = NULL;
2319     ram_size = 0;
2320     snapshot = 0;
2321     kernel_filename = NULL;
2322     kernel_cmdline = "";
2323     cyls = heads = secs = 0;
2324     translation = BIOS_ATA_TRANSLATION_AUTO;
2325
2326     for (i = 0; i < MAX_NODES; i++) {
2327         node_mem[i] = 0;
2328         node_cpumask[i] = 0;
2329     }
2330
2331     nb_numa_nodes = 0;
2332     nb_nics = 0;
2333
2334     autostart= 1;
2335
2336     /* first pass of option parsing */
2337     optind = 1;
2338     while (optind < argc) {
2339         if (argv[optind][0] != '-') {
2340             /* disk image */
2341             optind++;
2342             continue;
2343         } else {
2344             const QEMUOption *popt;
2345
2346             popt = lookup_opt(argc, argv, &optarg, &optind);
2347             switch (popt->index) {
2348             case QEMU_OPTION_nodefconfig:
2349                 defconfig=0;
2350                 break;
2351             }
2352         }
2353     }
2354
2355     if (defconfig) {
2356         int ret;
2357
2358         ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2359         if (ret < 0 && ret != -ENOENT) {
2360             exit(1);
2361         }
2362
2363         ret = qemu_read_config_file(arch_config_name);
2364         if (ret < 0 && ret != -ENOENT) {
2365             exit(1);
2366         }
2367     }
2368     cpudef_init();
2369
2370     /* second pass of option parsing */
2371     optind = 1;
2372     for(;;) {
2373         if (optind >= argc)
2374             break;
2375         if (argv[optind][0] != '-') {
2376             hda_opts = drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
2377         } else {
2378             const QEMUOption *popt;
2379
2380             popt = lookup_opt(argc, argv, &optarg, &optind);
2381             if (!(popt->arch_mask & arch_type)) {
2382                 printf("Option %s not supported for this target\n", popt->name);
2383                 exit(1);
2384             }
2385             switch(popt->index) {
2386             case QEMU_OPTION_M:
2387                 machine = machine_parse(optarg);
2388                 break;
2389             case QEMU_OPTION_cpu:
2390                 /* hw initialization will check this */
2391                 if (*optarg == '?') {
2392                     list_cpus(stdout, &fprintf, optarg);
2393                     exit(0);
2394                 } else {
2395                     cpu_model = optarg;
2396                 }
2397                 break;
2398             case QEMU_OPTION_initrd:
2399                 initrd_filename = optarg;
2400                 break;
2401             case QEMU_OPTION_hda:
2402                 {
2403                     char buf[256];
2404                     if (cyls == 0)
2405                         snprintf(buf, sizeof(buf), "%s", HD_OPTS);
2406                     else
2407                         snprintf(buf, sizeof(buf),
2408                                  "%s,cyls=%d,heads=%d,secs=%d%s",
2409                                  HD_OPTS , cyls, heads, secs,
2410                                  translation == BIOS_ATA_TRANSLATION_LBA ?
2411                                  ",trans=lba" :
2412                                  translation == BIOS_ATA_TRANSLATION_NONE ?
2413                                  ",trans=none" : "");
2414                     drive_add(IF_DEFAULT, 0, optarg, buf);
2415                     break;
2416                 }
2417             case QEMU_OPTION_hdb:
2418             case QEMU_OPTION_hdc:
2419             case QEMU_OPTION_hdd:
2420                 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
2421                           HD_OPTS);
2422                 break;
2423             case QEMU_OPTION_drive:
2424                 if (drive_def(optarg) == NULL) {
2425                     exit(1);
2426                 }
2427                 break;
2428             case QEMU_OPTION_set:
2429                 if (qemu_set_option(optarg) != 0)
2430                     exit(1);
2431                 break;
2432             case QEMU_OPTION_global:
2433                 if (qemu_global_option(optarg) != 0)
2434                     exit(1);
2435                 break;
2436             case QEMU_OPTION_mtdblock:
2437                 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
2438                 break;
2439             case QEMU_OPTION_sd:
2440                 drive_add(IF_SD, 0, optarg, SD_OPTS);
2441                 break;
2442             case QEMU_OPTION_pflash:
2443                 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
2444                 break;
2445             case QEMU_OPTION_snapshot:
2446                 snapshot = 1;
2447                 break;
2448             case QEMU_OPTION_hdachs:
2449                 {
2450                     const char *p;
2451                     p = optarg;
2452                     cyls = strtol(p, (char **)&p, 0);
2453                     if (cyls < 1 || cyls > 16383)
2454                         goto chs_fail;
2455                     if (*p != ',')
2456                         goto chs_fail;
2457                     p++;
2458                     heads = strtol(p, (char **)&p, 0);
2459                     if (heads < 1 || heads > 16)
2460                         goto chs_fail;
2461                     if (*p != ',')
2462                         goto chs_fail;
2463                     p++;
2464                     secs = strtol(p, (char **)&p, 0);
2465                     if (secs < 1 || secs > 63)
2466                         goto chs_fail;
2467                     if (*p == ',') {
2468                         p++;
2469                         if (!strcmp(p, "none"))
2470                             translation = BIOS_ATA_TRANSLATION_NONE;
2471                         else if (!strcmp(p, "lba"))
2472                             translation = BIOS_ATA_TRANSLATION_LBA;
2473                         else if (!strcmp(p, "auto"))
2474                             translation = BIOS_ATA_TRANSLATION_AUTO;
2475                         else
2476                             goto chs_fail;
2477                     } else if (*p != '\0') {
2478                     chs_fail:
2479                         fprintf(stderr, "qemu: invalid physical CHS format\n");
2480                         exit(1);
2481                     }
2482                     if (hda_opts != NULL) {
2483                         char num[16];
2484                         snprintf(num, sizeof(num), "%d", cyls);
2485                         qemu_opt_set(hda_opts, "cyls", num);
2486                         snprintf(num, sizeof(num), "%d", heads);
2487                         qemu_opt_set(hda_opts, "heads", num);
2488                         snprintf(num, sizeof(num), "%d", secs);
2489                         qemu_opt_set(hda_opts, "secs", num);
2490                         if (translation == BIOS_ATA_TRANSLATION_LBA)
2491                             qemu_opt_set(hda_opts, "trans", "lba");
2492                         if (translation == BIOS_ATA_TRANSLATION_NONE)
2493                             qemu_opt_set(hda_opts, "trans", "none");
2494                     }
2495                 }
2496                 break;
2497             case QEMU_OPTION_numa:
2498                 if (nb_numa_nodes >= MAX_NODES) {
2499                     fprintf(stderr, "qemu: too many NUMA nodes\n");
2500                     exit(1);
2501                 }
2502                 numa_add(optarg);
2503                 break;
2504             case QEMU_OPTION_display:
2505                 display_type = select_display(optarg);
2506                 break;
2507             case QEMU_OPTION_nographic:
2508                 display_type = DT_NOGRAPHIC;
2509                 break;
2510             case QEMU_OPTION_curses:
2511 #ifdef CONFIG_CURSES
2512                 display_type = DT_CURSES;
2513 #else
2514                 fprintf(stderr, "Curses support is disabled\n");
2515                 exit(1);
2516 #endif
2517                 break;
2518             case QEMU_OPTION_portrait:
2519                 graphic_rotate = 90;
2520                 break;
2521             case QEMU_OPTION_rotate:
2522                 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
2523                 if (graphic_rotate != 0 && graphic_rotate != 90 &&
2524                     graphic_rotate != 180 && graphic_rotate != 270) {
2525                     fprintf(stderr,
2526                         "qemu: only 90, 180, 270 deg rotation is available\n");
2527                     exit(1);
2528                 }
2529                 break;
2530             case QEMU_OPTION_kernel:
2531                 kernel_filename = optarg;
2532                 break;
2533             case QEMU_OPTION_append:
2534                 kernel_cmdline = optarg;
2535                 break;
2536             case QEMU_OPTION_cdrom:
2537                 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
2538                 break;
2539             case QEMU_OPTION_boot:
2540                 {
2541                     static const char * const params[] = {
2542                         "order", "once", "menu",
2543                         "splash", "splash-time", NULL
2544                     };
2545                     char buf[sizeof(boot_devices)];
2546                     char *standard_boot_devices;
2547                     int legacy = 0;
2548
2549                     if (!strchr(optarg, '=')) {
2550                         legacy = 1;
2551                         pstrcpy(buf, sizeof(buf), optarg);
2552                     } else if (check_params(buf, sizeof(buf), params, optarg) < 0) {
2553                         fprintf(stderr,
2554                                 "qemu: unknown boot parameter '%s' in '%s'\n",
2555                                 buf, optarg);
2556                         exit(1);
2557                     }
2558
2559                     if (legacy ||
2560                         get_param_value(buf, sizeof(buf), "order", optarg)) {
2561                         validate_bootdevices(buf);
2562                         pstrcpy(boot_devices, sizeof(boot_devices), buf);
2563                     }
2564                     if (!legacy) {
2565                         if (get_param_value(buf, sizeof(buf),
2566                                             "once", optarg)) {
2567                             validate_bootdevices(buf);
2568                             standard_boot_devices = g_strdup(boot_devices);
2569                             pstrcpy(boot_devices, sizeof(boot_devices), buf);
2570                             qemu_register_reset(restore_boot_devices,
2571                                                 standard_boot_devices);
2572                         }
2573                         if (get_param_value(buf, sizeof(buf),
2574                                             "menu", optarg)) {
2575                             if (!strcmp(buf, "on")) {
2576                                 boot_menu = 1;
2577                             } else if (!strcmp(buf, "off")) {
2578                                 boot_menu = 0;
2579                             } else {
2580                                 fprintf(stderr,
2581                                         "qemu: invalid option value '%s'\n",
2582                                         buf);
2583                                 exit(1);
2584                             }
2585                         }
2586                         qemu_opts_parse(qemu_find_opts("boot-opts"),
2587                                         optarg, 0);
2588                     }
2589                 }
2590                 break;
2591             case QEMU_OPTION_fda:
2592             case QEMU_OPTION_fdb:
2593                 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
2594                           optarg, FD_OPTS);
2595                 break;
2596             case QEMU_OPTION_no_fd_bootchk:
2597                 fd_bootchk = 0;
2598                 break;
2599             case QEMU_OPTION_netdev:
2600                 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
2601                     exit(1);
2602                 }
2603                 break;
2604             case QEMU_OPTION_net:
2605                 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
2606                     exit(1);
2607                 }
2608                 break;
2609 #ifdef CONFIG_SLIRP
2610             case QEMU_OPTION_tftp:
2611                 legacy_tftp_prefix = optarg;
2612                 break;
2613             case QEMU_OPTION_bootp:
2614                 legacy_bootp_filename = optarg;
2615                 break;
2616             case QEMU_OPTION_redir:
2617                 if (net_slirp_redir(optarg) < 0)
2618                     exit(1);
2619                 break;
2620 #endif
2621             case QEMU_OPTION_bt:
2622                 add_device_config(DEV_BT, optarg);
2623                 break;
2624             case QEMU_OPTION_audio_help:
2625                 if (!(audio_available())) {
2626                     printf("Option %s not supported for this target\n", popt->name);
2627                     exit(1);
2628                 }
2629                 AUD_help ();
2630                 exit (0);
2631                 break;
2632             case QEMU_OPTION_soundhw:
2633                 if (!(audio_available())) {
2634                     printf("Option %s not supported for this target\n", popt->name);
2635                     exit(1);
2636                 }
2637                 select_soundhw (optarg);
2638                 break;
2639             case QEMU_OPTION_h:
2640                 help(0);
2641                 break;
2642             case QEMU_OPTION_version:
2643                 version();
2644                 exit(0);
2645                 break;
2646             case QEMU_OPTION_m: {
2647                 int64_t value;
2648
2649                 value = strtosz(optarg, NULL);
2650                 if (value < 0) {
2651                     fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
2652                     exit(1);
2653                 }
2654
2655                 if (value != (uint64_t)(ram_addr_t)value) {
2656                     fprintf(stderr, "qemu: ram size too large\n");
2657                     exit(1);
2658                 }
2659                 ram_size = value;
2660                 break;
2661             }
2662             case QEMU_OPTION_mempath:
2663                 mem_path = optarg;
2664                 break;
2665 #ifdef MAP_POPULATE
2666             case QEMU_OPTION_mem_prealloc:
2667                 mem_prealloc = 1;
2668                 break;
2669 #endif
2670             case QEMU_OPTION_d:
2671                 log_mask = optarg;
2672                 break;
2673             case QEMU_OPTION_D:
2674                 log_file = optarg;
2675                 break;
2676             case QEMU_OPTION_s:
2677                 gdbstub_dev = "tcp::" DEFAULT_GDBSTUB_PORT;
2678                 break;
2679             case QEMU_OPTION_gdb:
2680                 gdbstub_dev = optarg;
2681                 break;
2682             case QEMU_OPTION_L:
2683                 data_dir = optarg;
2684                 break;
2685             case QEMU_OPTION_bios:
2686                 bios_name = optarg;
2687                 break;
2688             case QEMU_OPTION_singlestep:
2689                 singlestep = 1;
2690                 break;
2691             case QEMU_OPTION_S:
2692                 autostart = 0;
2693                 break;
2694             case QEMU_OPTION_k:
2695                 keyboard_layout = optarg;
2696                 break;
2697             case QEMU_OPTION_localtime:
2698                 rtc_utc = 0;
2699                 break;
2700             case QEMU_OPTION_vga:
2701                 select_vgahw (optarg);
2702                 break;
2703             case QEMU_OPTION_g:
2704                 {
2705                     const char *p;
2706                     int w, h, depth;
2707                     p = optarg;
2708                     w = strtol(p, (char **)&p, 10);
2709                     if (w <= 0) {
2710                     graphic_error:
2711                         fprintf(stderr, "qemu: invalid resolution or depth\n");
2712                         exit(1);
2713                     }
2714                     if (*p != 'x')
2715                         goto graphic_error;
2716                     p++;
2717                     h = strtol(p, (char **)&p, 10);
2718                     if (h <= 0)
2719                         goto graphic_error;
2720                     if (*p == 'x') {
2721                         p++;
2722                         depth = strtol(p, (char **)&p, 10);
2723                         if (depth != 8 && depth != 15 && depth != 16 &&
2724                             depth != 24 && depth != 32)
2725                             goto graphic_error;
2726                     } else if (*p == '\0') {
2727                         depth = graphic_depth;
2728                     } else {
2729                         goto graphic_error;
2730                     }
2731
2732                     graphic_width = w;
2733                     graphic_height = h;
2734                     graphic_depth = depth;
2735                 }
2736                 break;
2737             case QEMU_OPTION_echr:
2738                 {
2739                     char *r;
2740                     term_escape_char = strtol(optarg, &r, 0);
2741                     if (r == optarg)
2742                         printf("Bad argument to echr\n");
2743                     break;
2744                 }
2745             case QEMU_OPTION_monitor:
2746                 monitor_parse(optarg, "readline");
2747                 default_monitor = 0;
2748                 break;
2749             case QEMU_OPTION_qmp:
2750                 monitor_parse(optarg, "control");
2751                 default_monitor = 0;
2752                 break;
2753             case QEMU_OPTION_mon:
2754                 opts = qemu_opts_parse(qemu_find_opts("mon"), optarg, 1);
2755                 if (!opts) {
2756                     exit(1);
2757                 }
2758                 default_monitor = 0;
2759                 break;
2760             case QEMU_OPTION_chardev:
2761                 opts = qemu_opts_parse(qemu_find_opts("chardev"), optarg, 1);
2762                 if (!opts) {
2763                     exit(1);
2764                 }
2765                 break;
2766             case QEMU_OPTION_fsdev:
2767                 olist = qemu_find_opts("fsdev");
2768                 if (!olist) {
2769                     fprintf(stderr, "fsdev is not supported by this qemu build.\n");
2770                     exit(1);
2771                 }
2772                 opts = qemu_opts_parse(olist, optarg, 1);
2773                 if (!opts) {
2774                     fprintf(stderr, "parse error: %s\n", optarg);
2775                     exit(1);
2776                 }
2777                 break;
2778             case QEMU_OPTION_virtfs: {
2779                 QemuOpts *fsdev;
2780                 QemuOpts *device;
2781
2782                 olist = qemu_find_opts("virtfs");
2783                 if (!olist) {
2784                     fprintf(stderr, "virtfs is not supported by this qemu build.\n");
2785                     exit(1);
2786                 }
2787                 opts = qemu_opts_parse(olist, optarg, 1);
2788                 if (!opts) {
2789                     fprintf(stderr, "parse error: %s\n", optarg);
2790                     exit(1);
2791                 }
2792
2793                 if (qemu_opt_get(opts, "fstype") == NULL ||
2794                         qemu_opt_get(opts, "mount_tag") == NULL ||
2795                         qemu_opt_get(opts, "path") == NULL ||
2796                         qemu_opt_get(opts, "security_model") == NULL) {
2797                     fprintf(stderr, "Usage: -virtfs fstype,path=/share_path/,"
2798                             "security_model=[mapped|passthrough|none],"
2799                             "mount_tag=tag.\n");
2800                     exit(1);
2801                 }
2802
2803                 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
2804                                          qemu_opt_get(opts, "mount_tag"), 1);
2805                 if (!fsdev) {
2806                     fprintf(stderr, "duplicate fsdev id: %s\n",
2807                             qemu_opt_get(opts, "mount_tag"));
2808                     exit(1);
2809                 }
2810                 qemu_opt_set(fsdev, "fstype", qemu_opt_get(opts, "fstype"));
2811                 qemu_opt_set(fsdev, "path", qemu_opt_get(opts, "path"));
2812                 qemu_opt_set(fsdev, "security_model",
2813                              qemu_opt_get(opts, "security_model"));
2814
2815                 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0);
2816                 qemu_opt_set(device, "driver", "virtio-9p-pci");
2817                 qemu_opt_set(device, "fsdev",
2818                              qemu_opt_get(opts, "mount_tag"));
2819                 qemu_opt_set(device, "mount_tag",
2820                              qemu_opt_get(opts, "mount_tag"));
2821                 break;
2822             }
2823             case QEMU_OPTION_serial:
2824                 add_device_config(DEV_SERIAL, optarg);
2825                 default_serial = 0;
2826                 if (strncmp(optarg, "mon:", 4) == 0) {
2827                     default_monitor = 0;
2828                 }
2829                 break;
2830             case QEMU_OPTION_watchdog:
2831                 if (watchdog) {
2832                     fprintf(stderr,
2833                             "qemu: only one watchdog option may be given\n");
2834                     return 1;
2835                 }
2836                 watchdog = optarg;
2837                 break;
2838             case QEMU_OPTION_watchdog_action:
2839                 if (select_watchdog_action(optarg) == -1) {
2840                     fprintf(stderr, "Unknown -watchdog-action parameter\n");
2841                     exit(1);
2842                 }
2843                 break;
2844             case QEMU_OPTION_virtiocon:
2845                 add_device_config(DEV_VIRTCON, optarg);
2846                 default_virtcon = 0;
2847                 if (strncmp(optarg, "mon:", 4) == 0) {
2848                     default_monitor = 0;
2849                 }
2850                 break;
2851             case QEMU_OPTION_parallel:
2852                 add_device_config(DEV_PARALLEL, optarg);
2853                 default_parallel = 0;
2854                 if (strncmp(optarg, "mon:", 4) == 0) {
2855                     default_monitor = 0;
2856                 }
2857                 break;
2858             case QEMU_OPTION_debugcon:
2859                 add_device_config(DEV_DEBUGCON, optarg);
2860                 break;
2861             case QEMU_OPTION_loadvm:
2862                 loadvm = optarg;
2863                 break;
2864             case QEMU_OPTION_full_screen:
2865                 full_screen = 1;
2866                 break;
2867 #ifdef CONFIG_SDL
2868             case QEMU_OPTION_no_frame:
2869                 no_frame = 1;
2870                 break;
2871             case QEMU_OPTION_alt_grab:
2872                 alt_grab = 1;
2873                 break;
2874             case QEMU_OPTION_ctrl_grab:
2875                 ctrl_grab = 1;
2876                 break;
2877             case QEMU_OPTION_no_quit:
2878                 no_quit = 1;
2879                 break;
2880             case QEMU_OPTION_sdl:
2881                 display_type = DT_SDL;
2882                 break;
2883 #else
2884             case QEMU_OPTION_no_frame:
2885             case QEMU_OPTION_alt_grab:
2886             case QEMU_OPTION_ctrl_grab:
2887             case QEMU_OPTION_no_quit:
2888             case QEMU_OPTION_sdl:
2889                 fprintf(stderr, "SDL support is disabled\n");
2890                 exit(1);
2891 #endif
2892             case QEMU_OPTION_pidfile:
2893                 pid_file = optarg;
2894                 break;
2895             case QEMU_OPTION_win2k_hack:
2896                 win2k_install_hack = 1;
2897                 break;
2898             case QEMU_OPTION_rtc_td_hack:
2899                 rtc_td_hack = 1;
2900                 break;
2901             case QEMU_OPTION_acpitable:
2902                 do_acpitable_option(optarg);
2903                 break;
2904             case QEMU_OPTION_smbios:
2905                 do_smbios_option(optarg);
2906                 break;
2907             case QEMU_OPTION_enable_kvm:
2908                 olist = qemu_find_opts("machine");
2909                 qemu_opts_reset(olist);
2910                 qemu_opts_parse(olist, "accel=kvm", 0);
2911                 break;
2912             case QEMU_OPTION_machine:
2913                 olist = qemu_find_opts("machine");
2914                 qemu_opts_reset(olist);
2915                 opts = qemu_opts_parse(olist, optarg, 1);
2916                 if (!opts) {
2917                     fprintf(stderr, "parse error: %s\n", optarg);
2918                     exit(1);
2919                 }
2920                 optarg = qemu_opt_get(opts, "type");
2921                 if (optarg) {
2922                     machine = machine_parse(optarg);
2923                 }
2924                 break;
2925             case QEMU_OPTION_usb:
2926                 usb_enabled = 1;
2927                 break;
2928             case QEMU_OPTION_usbdevice:
2929                 usb_enabled = 1;
2930                 add_device_config(DEV_USB, optarg);
2931                 break;
2932             case QEMU_OPTION_device:
2933                 if (!qemu_opts_parse(qemu_find_opts("device"), optarg, 1)) {
2934                     exit(1);
2935                 }
2936                 break;
2937             case QEMU_OPTION_smp:
2938                 smp_parse(optarg);
2939                 if (smp_cpus < 1) {
2940                     fprintf(stderr, "Invalid number of CPUs\n");
2941                     exit(1);
2942                 }
2943                 if (max_cpus < smp_cpus) {
2944                     fprintf(stderr, "maxcpus must be equal to or greater than "
2945                             "smp\n");
2946                     exit(1);
2947                 }
2948                 if (max_cpus > 255) {
2949                     fprintf(stderr, "Unsupported number of maxcpus\n");
2950                     exit(1);
2951                 }
2952                 break;
2953             case QEMU_OPTION_vnc:
2954 #ifdef CONFIG_VNC
2955                 display_remote++;
2956                 vnc_display = optarg;
2957 #else
2958                 fprintf(stderr, "VNC support is disabled\n");
2959                 exit(1);
2960 #endif
2961                 break;
2962             case QEMU_OPTION_no_acpi:
2963                 acpi_enabled = 0;
2964                 break;
2965             case QEMU_OPTION_no_hpet:
2966                 no_hpet = 1;
2967                 break;
2968             case QEMU_OPTION_balloon:
2969                 if (balloon_parse(optarg) < 0) {
2970                     fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
2971                     exit(1);
2972                 }
2973                 break;
2974             case QEMU_OPTION_no_reboot:
2975                 no_reboot = 1;
2976                 break;
2977             case QEMU_OPTION_no_shutdown:
2978                 no_shutdown = 1;
2979                 break;
2980             case QEMU_OPTION_show_cursor:
2981                 cursor_hide = 0;
2982                 break;
2983             case QEMU_OPTION_uuid:
2984                 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
2985                     fprintf(stderr, "Fail to parse UUID string."
2986                             " Wrong format.\n");
2987                     exit(1);
2988                 }
2989                 break;
2990             case QEMU_OPTION_option_rom:
2991                 if (nb_option_roms >= MAX_OPTION_ROMS) {
2992                     fprintf(stderr, "Too many option ROMs\n");
2993                     exit(1);
2994                 }
2995                 opts = qemu_opts_parse(qemu_find_opts("option-rom"), optarg, 1);
2996                 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
2997                 option_rom[nb_option_roms].bootindex =
2998                     qemu_opt_get_number(opts, "bootindex", -1);
2999                 if (!option_rom[nb_option_roms].name) {
3000                     fprintf(stderr, "Option ROM file is not specified\n");
3001                     exit(1);
3002                 }
3003                 nb_option_roms++;
3004                 break;
3005             case QEMU_OPTION_semihosting:
3006                 semihosting_enabled = 1;
3007                 break;
3008             case QEMU_OPTION_name:
3009                 qemu_name = g_strdup(optarg);
3010                  {
3011                      char *p = strchr(qemu_name, ',');
3012                      if (p != NULL) {
3013                         *p++ = 0;
3014                         if (strncmp(p, "process=", 8)) {
3015                             fprintf(stderr, "Unknown subargument %s to -name\n", p);
3016                             exit(1);
3017                         }
3018                         p += 8;
3019                         os_set_proc_name(p);
3020                      }
3021                  }
3022                 break;
3023             case QEMU_OPTION_prom_env:
3024                 if (nb_prom_envs >= MAX_PROM_ENVS) {
3025                     fprintf(stderr, "Too many prom variables\n");
3026                     exit(1);
3027                 }
3028                 prom_envs[nb_prom_envs] = optarg;
3029                 nb_prom_envs++;
3030                 break;
3031             case QEMU_OPTION_old_param:
3032                 old_param = 1;
3033                 break;
3034             case QEMU_OPTION_clock:
3035                 configure_alarms(optarg);
3036                 break;
3037             case QEMU_OPTION_startdate:
3038                 configure_rtc_date_offset(optarg, 1);
3039                 break;
3040             case QEMU_OPTION_rtc:
3041                 opts = qemu_opts_parse(qemu_find_opts("rtc"), optarg, 0);
3042                 if (!opts) {
3043                     exit(1);
3044                 }
3045                 configure_rtc(opts);
3046                 break;
3047             case QEMU_OPTION_tb_size:
3048                 tcg_tb_size = strtol(optarg, NULL, 0);
3049                 if (tcg_tb_size < 0) {
3050                     tcg_tb_size = 0;
3051                 }
3052                 break;
3053             case QEMU_OPTION_icount:
3054                 icount_option = optarg;
3055                 break;
3056             case QEMU_OPTION_incoming:
3057                 incoming = optarg;
3058                 break;
3059             case QEMU_OPTION_nodefaults:
3060                 default_serial = 0;
3061                 default_parallel = 0;
3062                 default_virtcon = 0;
3063                 default_monitor = 0;
3064                 default_vga = 0;
3065                 default_net = 0;
3066                 default_floppy = 0;
3067                 default_cdrom = 0;
3068                 default_sdcard = 0;
3069                 break;
3070             case QEMU_OPTION_xen_domid:
3071                 if (!(xen_available())) {
3072                     printf("Option %s not supported for this target\n", popt->name);
3073                     exit(1);
3074                 }
3075                 xen_domid = atoi(optarg);
3076                 break;
3077             case QEMU_OPTION_xen_create:
3078                 if (!(xen_available())) {
3079                     printf("Option %s not supported for this target\n", popt->name);
3080                     exit(1);
3081                 }
3082                 xen_mode = XEN_CREATE;
3083                 break;
3084             case QEMU_OPTION_xen_attach:
3085                 if (!(xen_available())) {
3086                     printf("Option %s not supported for this target\n", popt->name);
3087                     exit(1);
3088                 }
3089                 xen_mode = XEN_ATTACH;
3090                 break;
3091             case QEMU_OPTION_trace:
3092             {
3093                 opts = qemu_opts_parse(qemu_find_opts("trace"), optarg, 0);
3094                 if (!opts) {
3095                     exit(1);
3096                 }
3097                 trace_events = qemu_opt_get(opts, "events");
3098                 trace_file = qemu_opt_get(opts, "file");
3099                 break;
3100             }
3101             case QEMU_OPTION_readconfig:
3102                 {
3103                     int ret = qemu_read_config_file(optarg);
3104                     if (ret < 0) {
3105                         fprintf(stderr, "read config %s: %s\n", optarg,
3106                             strerror(-ret));
3107                         exit(1);
3108                     }
3109                     break;
3110                 }
3111             case QEMU_OPTION_spice:
3112                 olist = qemu_find_opts("spice");
3113                 if (!olist) {
3114                     fprintf(stderr, "spice is not supported by this qemu build.\n");
3115                     exit(1);
3116                 }
3117                 opts = qemu_opts_parse(olist, optarg, 0);
3118                 if (!opts) {
3119                     fprintf(stderr, "parse error: %s\n", optarg);
3120                     exit(1);
3121                 }
3122                 break;
3123             case QEMU_OPTION_writeconfig:
3124                 {
3125                     FILE *fp;
3126                     if (strcmp(optarg, "-") == 0) {
3127                         fp = stdout;
3128                     } else {
3129                         fp = fopen(optarg, "w");
3130                         if (fp == NULL) {
3131                             fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
3132                             exit(1);
3133                         }
3134                     }
3135                     qemu_config_write(fp);
3136                     fclose(fp);
3137                     break;
3138                 }
3139             default:
3140                 os_parse_cmd_args(popt->index, optarg);
3141             }
3142         }
3143     }
3144     loc_set_none();
3145
3146     /* Open the logfile at this point, if necessary. We can't open the logfile
3147      * when encountering either of the logging options (-d or -D) because the
3148      * other one may be encountered later on the command line, changing the
3149      * location or level of logging.
3150      */
3151     if (log_mask) {
3152         if (log_file) {
3153             set_cpu_log_filename(log_file);
3154         }
3155         set_cpu_log(log_mask);
3156     }
3157
3158     if (!trace_backend_init(trace_events, trace_file)) {
3159         exit(1);
3160     }
3161
3162     /* If no data_dir is specified then try to find it relative to the
3163        executable path.  */
3164     if (!data_dir) {
3165         data_dir = os_find_datadir(argv[0]);
3166     }
3167     /* If all else fails use the install path specified when building. */
3168     if (!data_dir) {
3169         data_dir = CONFIG_QEMU_DATADIR;
3170     }
3171
3172     /*
3173      * Default to max_cpus = smp_cpus, in case the user doesn't
3174      * specify a max_cpus value.
3175      */
3176     if (!max_cpus)
3177         max_cpus = smp_cpus;
3178
3179     machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
3180     if (smp_cpus > machine->max_cpus) {
3181         fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
3182                 "supported by machine `%s' (%d)\n", smp_cpus,  machine->name,
3183                 machine->max_cpus);
3184         exit(1);
3185     }
3186
3187     /*
3188      * Get the default machine options from the machine if it is not already
3189      * specified either by the configuration file or by the command line.
3190      */
3191     if (machine->default_machine_opts) {
3192         QemuOptsList *list = qemu_find_opts("machine");
3193         const char *p = NULL;
3194
3195         if (!QTAILQ_EMPTY(&list->head)) {
3196             p = qemu_opt_get(QTAILQ_FIRST(&list->head), "accel");
3197         }
3198         if (p == NULL) {
3199             qemu_opts_reset(list);
3200             opts = qemu_opts_parse(list, machine->default_machine_opts, 0);
3201             if (!opts) {
3202                 fprintf(stderr, "parse error for machine %s: %s\n",
3203                         machine->name, machine->default_machine_opts);
3204                 exit(1);
3205             }
3206         }
3207     }
3208
3209     qemu_opts_foreach(qemu_find_opts("device"), default_driver_check, NULL, 0);
3210     qemu_opts_foreach(qemu_find_opts("global"), default_driver_check, NULL, 0);
3211
3212     if (machine->no_serial) {
3213         default_serial = 0;
3214     }
3215     if (machine->no_parallel) {
3216         default_parallel = 0;
3217     }
3218     if (!machine->use_virtcon) {
3219         default_virtcon = 0;
3220     }
3221     if (machine->no_vga) {
3222         default_vga = 0;
3223     }
3224     if (machine->no_floppy) {
3225         default_floppy = 0;
3226     }
3227     if (machine->no_cdrom) {
3228         default_cdrom = 0;
3229     }
3230     if (machine->no_sdcard) {
3231         default_sdcard = 0;
3232     }
3233
3234     if (display_type == DT_NOGRAPHIC) {
3235         if (default_parallel)
3236             add_device_config(DEV_PARALLEL, "null");
3237         if (default_serial && default_monitor) {
3238             add_device_config(DEV_SERIAL, "mon:stdio");
3239         } else if (default_virtcon && default_monitor) {
3240             add_device_config(DEV_VIRTCON, "mon:stdio");
3241         } else {
3242             if (default_serial)
3243                 add_device_config(DEV_SERIAL, "stdio");
3244             if (default_virtcon)
3245                 add_device_config(DEV_VIRTCON, "stdio");
3246             if (default_monitor)
3247                 monitor_parse("stdio", "readline");
3248         }
3249     } else {
3250         if (default_serial)
3251             add_device_config(DEV_SERIAL, "vc:80Cx24C");
3252         if (default_parallel)
3253             add_device_config(DEV_PARALLEL, "vc:80Cx24C");
3254         if (default_monitor)
3255             monitor_parse("vc:80Cx24C", "readline");
3256         if (default_virtcon)
3257             add_device_config(DEV_VIRTCON, "vc:80Cx24C");
3258     }
3259     if (default_vga)
3260         vga_interface_type = VGA_CIRRUS;
3261
3262     socket_init();
3263
3264     if (qemu_opts_foreach(qemu_find_opts("chardev"), chardev_init_func, NULL, 1) != 0)
3265         exit(1);
3266 #ifdef CONFIG_VIRTFS
3267     if (qemu_opts_foreach(qemu_find_opts("fsdev"), fsdev_init_func, NULL, 1) != 0) {
3268         exit(1);
3269     }
3270 #endif
3271
3272     os_daemonize();
3273
3274     if (pid_file && qemu_create_pidfile(pid_file) != 0) {
3275         os_pidfile_error();
3276         exit(1);
3277     }
3278
3279     /* init the memory */
3280     if (ram_size == 0) {
3281         ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
3282     }
3283
3284     configure_accelerator();
3285
3286     if (qemu_init_main_loop()) {
3287         fprintf(stderr, "qemu_init_main_loop failed\n");
3288         exit(1);
3289     }
3290     linux_boot = (kernel_filename != NULL);
3291
3292     if (!linux_boot && *kernel_cmdline != '\0') {
3293         fprintf(stderr, "-append only allowed with -kernel option\n");
3294         exit(1);
3295     }
3296
3297     if (!linux_boot && initrd_filename != NULL) {
3298         fprintf(stderr, "-initrd only allowed with -kernel option\n");
3299         exit(1);
3300     }
3301
3302     os_set_line_buffering();
3303
3304     if (init_timer_alarm() < 0) {
3305         fprintf(stderr, "could not initialize alarm timer\n");
3306         exit(1);
3307     }
3308     configure_icount(icount_option);
3309
3310     if (net_init_clients() < 0) {
3311         exit(1);
3312     }
3313
3314     /* init the bluetooth world */
3315     if (foreach_device_config(DEV_BT, bt_parse))
3316         exit(1);
3317
3318     if (!xen_enabled()) {
3319         /* On 32-bit hosts, QEMU is limited by virtual address space */
3320         if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
3321             fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
3322             exit(1);
3323         }
3324     }
3325
3326     cpu_exec_init_all();
3327
3328     bdrv_init_with_whitelist();
3329
3330     blk_mig_init();
3331
3332     /* open the virtual block devices */
3333     if (snapshot)
3334         qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot, NULL, 0);
3335     if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func, &machine->use_scsi, 1) != 0)
3336         exit(1);
3337
3338     default_drive(default_cdrom, snapshot, machine->use_scsi,
3339                   IF_DEFAULT, 2, CDROM_OPTS);
3340     default_drive(default_floppy, snapshot, machine->use_scsi,
3341                   IF_FLOPPY, 0, FD_OPTS);
3342     default_drive(default_sdcard, snapshot, machine->use_scsi,
3343                   IF_SD, 0, SD_OPTS);
3344
3345     register_savevm_live(NULL, "ram", 0, 4, NULL, ram_save_live, NULL,
3346                          ram_load, NULL);
3347
3348     if (nb_numa_nodes > 0) {
3349         int i;
3350
3351         if (nb_numa_nodes > MAX_NODES) {
3352             nb_numa_nodes = MAX_NODES;
3353         }
3354
3355         /* If no memory size if given for any node, assume the default case
3356          * and distribute the available memory equally across all nodes
3357          */
3358         for (i = 0; i < nb_numa_nodes; i++) {
3359             if (node_mem[i] != 0)
3360                 break;
3361         }
3362         if (i == nb_numa_nodes) {
3363             uint64_t usedmem = 0;
3364
3365             /* On Linux, the each node's border has to be 8MB aligned,
3366              * the final node gets the rest.
3367              */
3368             for (i = 0; i < nb_numa_nodes - 1; i++) {
3369                 node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1);
3370                 usedmem += node_mem[i];
3371             }
3372             node_mem[i] = ram_size - usedmem;
3373         }
3374
3375         for (i = 0; i < nb_numa_nodes; i++) {
3376             if (node_cpumask[i] != 0)
3377                 break;
3378         }
3379         /* assigning the VCPUs round-robin is easier to implement, guest OSes
3380          * must cope with this anyway, because there are BIOSes out there in
3381          * real machines which also use this scheme.
3382          */
3383         if (i == nb_numa_nodes) {
3384             for (i = 0; i < smp_cpus; i++) {
3385                 node_cpumask[i % nb_numa_nodes] |= 1 << i;
3386             }
3387         }
3388     }
3389
3390     if (qemu_opts_foreach(qemu_find_opts("mon"), mon_init_func, NULL, 1) != 0) {
3391         exit(1);
3392     }
3393
3394     if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
3395         exit(1);
3396     if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
3397         exit(1);
3398     if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
3399         exit(1);
3400     if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
3401         exit(1);
3402
3403     module_call_init(MODULE_INIT_DEVICE);
3404
3405     if (qemu_opts_foreach(qemu_find_opts("device"), device_help_func, NULL, 0) != 0)
3406         exit(0);
3407
3408     if (watchdog) {
3409         i = select_watchdog(watchdog);
3410         if (i > 0)
3411             exit (i == 1 ? 1 : 0);
3412     }
3413
3414     if (machine->compat_props) {
3415         qdev_prop_register_global_list(machine->compat_props);
3416     }
3417     qemu_add_globals();
3418
3419     machine->init(ram_size, boot_devices,
3420                   kernel_filename, kernel_cmdline, initrd_filename, cpu_model);
3421
3422     cpu_synchronize_all_post_init();
3423
3424     set_numa_modes();
3425
3426     current_machine = machine;
3427
3428     /* init USB devices */
3429     if (usb_enabled) {
3430         if (foreach_device_config(DEV_USB, usb_parse) < 0)
3431             exit(1);
3432     }
3433
3434     /* init generic devices */
3435     if (qemu_opts_foreach(qemu_find_opts("device"), device_init_func, NULL, 1) != 0)
3436         exit(1);
3437
3438     net_check_clients();
3439
3440     /* just use the first displaystate for the moment */
3441     ds = get_displaystate();
3442
3443     if (using_spice)
3444         display_remote++;
3445     if (display_type == DT_DEFAULT && !display_remote) {
3446 #if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
3447         display_type = DT_SDL;
3448 #elif defined(CONFIG_VNC)
3449         vnc_display = "localhost:0,to=99";
3450         show_vnc_port = 1;
3451 #else
3452         display_type = DT_NONE;
3453 #endif
3454     }
3455
3456
3457     /* init local displays */
3458     switch (display_type) {
3459     case DT_NOGRAPHIC:
3460         break;
3461 #if defined(CONFIG_CURSES)
3462     case DT_CURSES:
3463         curses_display_init(ds, full_screen);
3464         break;
3465 #endif
3466 #if defined(CONFIG_SDL)
3467     case DT_SDL:
3468         sdl_display_init(ds, full_screen, no_frame);
3469         break;
3470 #elif defined(CONFIG_COCOA)
3471     case DT_SDL:
3472         cocoa_display_init(ds, full_screen);
3473         break;
3474 #endif
3475     default:
3476         break;
3477     }
3478
3479     /* must be after terminal init, SDL library changes signal handlers */
3480     os_setup_signal_handling();
3481
3482 #ifdef CONFIG_VNC
3483     /* init remote displays */
3484     if (vnc_display) {
3485         vnc_display_init(ds);
3486         if (vnc_display_open(ds, vnc_display) < 0)
3487             exit(1);
3488
3489         if (show_vnc_port) {
3490             printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
3491         }
3492     }
3493 #endif
3494 #ifdef CONFIG_SPICE
3495     if (using_spice && !qxl_enabled) {
3496         qemu_spice_display_init(ds);
3497     }
3498 #endif
3499
3500     /* display setup */
3501     dpy_resize(ds);
3502     dcl = ds->listeners;
3503     while (dcl != NULL) {
3504         if (dcl->dpy_refresh != NULL) {
3505             ds->gui_timer = qemu_new_timer_ms(rt_clock, gui_update, ds);
3506             qemu_mod_timer(ds->gui_timer, qemu_get_clock_ms(rt_clock));
3507             break;
3508         }
3509         dcl = dcl->next;
3510     }
3511     text_consoles_set_display(ds);
3512
3513     if (gdbstub_dev && gdbserver_start(gdbstub_dev) < 0) {
3514         fprintf(stderr, "qemu: could not open gdbserver on device '%s'\n",
3515                 gdbstub_dev);
3516         exit(1);
3517     }
3518
3519     qdev_machine_creation_done();
3520
3521     if (rom_load_all() != 0) {
3522         fprintf(stderr, "rom loading failed\n");
3523         exit(1);
3524     }
3525
3526     /* TODO: once all bus devices are qdevified, this should be done
3527      * when bus is created by qdev.c */
3528     qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
3529     qemu_run_machine_init_done_notifiers();
3530
3531     qemu_system_reset(VMRESET_SILENT);
3532     if (loadvm) {
3533         if (load_vmstate(loadvm) < 0) {
3534             autostart = 0;
3535         }
3536     }
3537
3538     if (incoming) {
3539         runstate_set(RUN_STATE_INMIGRATE);
3540         int ret = qemu_start_incoming_migration(incoming);
3541         if (ret < 0) {
3542             fprintf(stderr, "Migration failed. Exit code %s(%d), exiting.\n",
3543                     incoming, ret);
3544             exit(ret);
3545         }
3546     } else if (autostart) {
3547         vm_start();
3548     }
3549
3550     os_setup_post();
3551
3552     main_loop();
3553     quit_timers();
3554     net_cleanup();
3555     res_free();
3556
3557     return 0;
3558 }