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 #include "bitmap.h"
  32
  33 /* Needed early for CONFIG_BSD etc. */
  34 #include "config-host.h"
  35
  36 #ifndef _WIN32
  37 #include <libgen.h>
  38 #include <sys/times.h>
  39 #include <sys/wait.h>
  40 #include <termios.h>
  41 #include <sys/mman.h>
  42 #include <sys/ioctl.h>
  43 #include <sys/resource.h>
  44 #include <sys/socket.h>
  45 #include <netinet/in.h>
  46 #include <net/if.h>
  47 #include <arpa/inet.h>
  48 #include <dirent.h>
  49 #include <netdb.h>
  50 #include <sys/select.h>
  51
  52 #ifdef CONFIG_BSD
  53 #include <sys/stat.h>
  54 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
  55 #include <sys/sysctl.h>
  56 #else
  57 #include <util.h>
  58 #endif
  59 #else
  60 #ifdef __linux__
  61 #include <malloc.h>
  62
  63 #include <linux/ppdev.h>
  64 #include <linux/parport.h>
  65 #endif
  66
  67 #ifdef CONFIG_SECCOMP
  68 #include "qemu-seccomp.h"
  69 #endif
  70
  71 #ifdef __sun__
  72 #include <sys/stat.h>
  73 #include <sys/ethernet.h>
  74 #include <sys/sockio.h>
  75 #include <netinet/arp.h>
  76 #include <netinet/in_systm.h>
  77 #include <netinet/ip.h>
  78 #include <netinet/ip_icmp.h> // must come after ip.h
  79 #include <netinet/udp.h>
  80 #include <netinet/tcp.h>
  81 #include <net/if.h>
  82 #include <syslog.h>
  83 #include <stropts.h>
  84 #endif
  85 #endif
  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 "blockdev.h"
 140 #include "hw/block-common.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 "qjson.h"
 147 #include "qemu-option.h"
 148 #include "qemu-config.h"
 149 #include "qemu-options.h"
 150 #include "qmp-commands.h"
 151 #include "main-loop.h"
 152 #ifdef CONFIG_VIRTFS
 153 #include "fsdev/qemu-fsdev.h"
 154 #endif
 155 #include "qtest.h"
 156
 157 #include "disas.h"
 158
 159 #include "qemu_socket.h"
 160
 161 #include "slirp/libslirp.h"
 162
 163 #include "trace.h"
 164 #include "trace/control.h"
 165 #include "qemu-queue.h"
 166 #include "cpus.h"
 167 #include "arch_init.h"
 168 #include "osdep.h"
 169
 170 #include "ui/qemu-spice.h"
 171
 172 //#define DEBUG_NET
 173 //#define DEBUG_SLIRP
 174
 175 #define DEFAULT_RAM_SIZE 128
 176
 177 #define MAX_VIRTIO_CONSOLES 1
 178
 179 static const char *data_dir;
 180 const char *bios_name = NULL;
 181 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
 182 int vga_cga_hacks = 0;
 183 DisplayType display_type = DT_DEFAULT;
 184 int display_remote = 0;
 185 const char* keyboard_layout = NULL;
 186 ram_addr_t ram_size;
 187 const char *mem_path = NULL;
 188 #ifdef MAP_POPULATE
 189 int mem_prealloc = 0; /* force preallocation of physical target memory */
 190 #endif
 191 int nb_nics;
 192 NICInfo nd_table[MAX_NICS];
 193 int autostart;
 194 static int rtc_utc = 1;
 195 static int rtc_date_offset = -1; /* -1 means no change */
 196 QEMUClock *rtc_clock;
 197 int vga_interface_type = VGA_NONE;
 198 static int full_screen = 0;
 199 #ifdef CONFIG_SDL
 200 static int no_frame = 0;
 201 #endif
 202 int no_quit = 0;
 203 CharDriverState *serial_hds[MAX_SERIAL_PORTS];
 204 CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
 205 CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES];
 206 int win2k_install_hack = 0;
 207 int usb_enabled = 0;
 208 int singlestep = 0;
 209 int smp_cpus = 1;
 210 int max_cpus = 0;
 211 int smp_cores = 1;
 212 int smp_threads = 1;
 213 #ifdef CONFIG_VNC
 214 const char *vnc_display;
 215 #endif
 216 int acpi_enabled = 1;
 217 int no_hpet = 0;
 218 int fd_bootchk = 1;
 219 int no_reboot = 0;
 220 int no_shutdown = 0;
 221 int cursor_hide = 1;
 222 int graphic_rotate = 0;
 223 const char *watchdog;
 224 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
 225 int nb_option_roms;
 226 int semihosting_enabled = 0;
 227 int old_param = 0;
 228 const char *qemu_name;
 229 int alt_grab = 0;
 230 int ctrl_grab = 0;
 231 unsigned int nb_prom_envs = 0;
 232 const char *prom_envs[MAX_PROM_ENVS];
 233 int boot_menu;
 234 uint8_t *boot_splash_filedata;
 235 int boot_splash_filedata_size;
 236 uint8_t qemu_extra_params_fw[2];
 237
 238 typedef struct FWBootEntry FWBootEntry;
 239
 240 struct FWBootEntry {
 241     QTAILQ_ENTRY(FWBootEntry) link;
 242     int32_t bootindex;
 243     DeviceState *dev;
 244     char *suffix;
 245 };
 246
 247 QTAILQ_HEAD(, FWBootEntry) fw_boot_order = QTAILQ_HEAD_INITIALIZER(fw_boot_order);
 248
 249 int nb_numa_nodes;
 250 uint64_t node_mem[MAX_NODES];
 251 unsigned long *node_cpumask[MAX_NODES];
 252
 253 uint8_t qemu_uuid[16];
 254
 255 static QEMUBootSetHandler *boot_set_handler;
 256 static void *boot_set_opaque;
 257
 258 static NotifierList exit_notifiers =
 259     NOTIFIER_LIST_INITIALIZER(exit_notifiers);
 260
 261 static NotifierList machine_init_done_notifiers =
 262     NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
 263
 264 static int tcg_allowed = 1;
 265 int kvm_allowed = 0;
 266 int xen_allowed = 0;
 267 uint32_t xen_domid;
 268 enum xen_mode xen_mode = XEN_EMULATE;
 269 static int tcg_tb_size;
 270
 271 static int default_serial = 1;
 272 static int default_parallel = 1;
 273 static int default_virtcon = 1;
 274 static int default_monitor = 1;
 275 static int default_floppy = 1;
 276 static int default_cdrom = 1;
 277 static int default_sdcard = 1;
 278 static int default_vga = 1;
 279
 280 static struct {
 281     const char *driver;
 282     int *flag;
 283 } default_list[] = {
 284     { .driver = "isa-serial",           .flag = &default_serial    },
 285     { .driver = "isa-parallel",         .flag = &default_parallel  },
 286     { .driver = "isa-fdc",              .flag = &default_floppy    },
 287     { .driver = "ide-cd",               .flag = &default_cdrom     },
 288     { .driver = "ide-hd",               .flag = &default_cdrom     },
 289     { .driver = "ide-drive",            .flag = &default_cdrom     },
 290     { .driver = "scsi-cd",              .flag = &default_cdrom     },
 291     { .driver = "virtio-serial-pci",    .flag = &default_virtcon   },
 292     { .driver = "virtio-serial-s390",   .flag = &default_virtcon   },
 293     { .driver = "virtio-serial",        .flag = &default_virtcon   },
 294     { .driver = "VGA",                  .flag = &default_vga       },
 295     { .driver = "isa-vga",              .flag = &default_vga       },
 296     { .driver = "cirrus-vga",           .flag = &default_vga       },
 297     { .driver = "isa-cirrus-vga",       .flag = &default_vga       },
 298     { .driver = "vmware-svga",          .flag = &default_vga       },
 299     { .driver = "qxl-vga",              .flag = &default_vga       },
 300 };
 301
 302 const char *qemu_get_vm_name(void)
 303 {
 304     return qemu_name;
 305 }
 306
 307 static void res_free(void)
 308 {
 309     if (boot_splash_filedata != NULL) {
 310         g_free(boot_splash_filedata);
 311         boot_splash_filedata = NULL;
 312     }
 313 }
 314
 315 static int default_driver_check(QemuOpts *opts, void *opaque)
 316 {
 317     const char *driver = qemu_opt_get(opts, "driver");
 318     int i;
 319
 320     if (!driver)
 321         return 0;
 322     for (i = 0; i < ARRAY_SIZE(default_list); i++) {
 323         if (strcmp(default_list[i].driver, driver) != 0)
 324             continue;
 325         *(default_list[i].flag) = 0;
 326     }
 327     return 0;
 328 }
 329
 330 /***********************************************************/
 331 /* QEMU state */
 332
 333 static RunState current_run_state = RUN_STATE_PRELAUNCH;
 334
 335 typedef struct {
 336     RunState from;
 337     RunState to;
 338 } RunStateTransition;
 339
 340 static const RunStateTransition runstate_transitions_def[] = {
 341     /*     from      ->     to      */
 342     { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
 343
 344     { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
 345     { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
 346
 347     { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
 348     { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
 349
 350     { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
 351     { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
 352
 353     { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
 354     { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
 355
 356     { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
 357     { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
 358
 359     { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
 360     { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
 361     { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
 362
 363     { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
 364     { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
 365
 366     { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
 367
 368     { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
 369     { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
 370     { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
 371     { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
 372     { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
 373     { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
 374     { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
 375     { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
 376     { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
 377
 378     { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
 379
 380     { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
 381     { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
 382
 383     { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
 384     { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
 385     { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
 386     { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
 387
 388     { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
 389     { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
 390
 391     { RUN_STATE_MAX, RUN_STATE_MAX },
 392 };
 393
 394 static bool runstate_valid_transitions[RUN_STATE_MAX][RUN_STATE_MAX];
 395
 396 bool runstate_check(RunState state)
 397 {
 398     return current_run_state == state;
 399 }
 400
 401 void runstate_init(void)
 402 {
 403     const RunStateTransition *p;
 404
 405     memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
 406
 407     for (p = &runstate_transitions_def[0]; p->from != RUN_STATE_MAX; p++) {
 408         runstate_valid_transitions[p->from][p->to] = true;
 409     }
 410 }
 411
 412 /* This function will abort() on invalid state transitions */
 413 void runstate_set(RunState new_state)
 414 {
 415     assert(new_state < RUN_STATE_MAX);
 416
 417     if (!runstate_valid_transitions[current_run_state][new_state]) {
 418         fprintf(stderr, "ERROR: invalid runstate transition: '%s' -> '%s'\n",
 419                 RunState_lookup[current_run_state],
 420                 RunState_lookup[new_state]);
 421         abort();
 422     }
 423
 424     current_run_state = new_state;
 425 }
 426
 427 int runstate_is_running(void)
 428 {
 429     return runstate_check(RUN_STATE_RUNNING);
 430 }
 431
 432 StatusInfo *qmp_query_status(Error **errp)
 433 {
 434     StatusInfo *info = g_malloc0(sizeof(*info));
 435
 436     info->running = runstate_is_running();
 437     info->singlestep = singlestep;
 438     info->status = current_run_state;
 439
 440     return info;
 441 }
 442
 443 /***********************************************************/
 444 /* real time host monotonic timer */
 445
 446 /***********************************************************/
 447 /* host time/date access */
 448 void qemu_get_timedate(struct tm *tm, int offset)
 449 {
 450     time_t ti;
 451     struct tm *ret;
 452
 453     time(&ti);
 454     ti += offset;
 455     if (rtc_date_offset == -1) {
 456         if (rtc_utc)
 457             ret = gmtime(&ti);
 458         else
 459             ret = localtime(&ti);
 460     } else {
 461         ti -= rtc_date_offset;
 462         ret = gmtime(&ti);
 463     }
 464
 465     memcpy(tm, ret, sizeof(struct tm));
 466 }
 467
 468 int qemu_timedate_diff(struct tm *tm)
 469 {
 470     time_t seconds;
 471
 472     if (rtc_date_offset == -1)
 473         if (rtc_utc)
 474             seconds = mktimegm(tm);
 475         else {
 476             struct tm tmp = *tm;
 477             tmp.tm_isdst = -1; /* use timezone to figure it out */
 478             seconds = mktime(&tmp);
 479         }
 480     else
 481         seconds = mktimegm(tm) + rtc_date_offset;
 482
 483     return seconds - time(NULL);
 484 }
 485
 486 void rtc_change_mon_event(struct tm *tm)
 487 {
 488     QObject *data;
 489
 490     data = qobject_from_jsonf("{ 'offset': %d }", qemu_timedate_diff(tm));
 491     monitor_protocol_event(QEVENT_RTC_CHANGE, data);
 492     qobject_decref(data);
 493 }
 494
 495 static void configure_rtc_date_offset(const char *startdate, int legacy)
 496 {
 497     time_t rtc_start_date;
 498     struct tm tm;
 499
 500     if (!strcmp(startdate, "now") && legacy) {
 501         rtc_date_offset = -1;
 502     } else {
 503         if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
 504                    &tm.tm_year,
 505                    &tm.tm_mon,
 506                    &tm.tm_mday,
 507                    &tm.tm_hour,
 508                    &tm.tm_min,
 509                    &tm.tm_sec) == 6) {
 510             /* OK */
 511         } else if (sscanf(startdate, "%d-%d-%d",
 512                           &tm.tm_year,
 513                           &tm.tm_mon,
 514                           &tm.tm_mday) == 3) {
 515             tm.tm_hour = 0;
 516             tm.tm_min = 0;
 517             tm.tm_sec = 0;
 518         } else {
 519             goto date_fail;
 520         }
 521         tm.tm_year -= 1900;
 522         tm.tm_mon--;
 523         rtc_start_date = mktimegm(&tm);
 524         if (rtc_start_date == -1) {
 525         date_fail:
 526             fprintf(stderr, "Invalid date format. Valid formats are:\n"
 527                             "'2006-06-17T16:01:21' or '2006-06-17'\n");
 528             exit(1);
 529         }
 530         rtc_date_offset = time(NULL) - rtc_start_date;
 531     }
 532 }
 533
 534 static void configure_rtc(QemuOpts *opts)
 535 {
 536     const char *value;
 537
 538     value = qemu_opt_get(opts, "base");
 539     if (value) {
 540         if (!strcmp(value, "utc")) {
 541             rtc_utc = 1;
 542         } else if (!strcmp(value, "localtime")) {
 543             rtc_utc = 0;
 544         } else {
 545             configure_rtc_date_offset(value, 0);
 546         }
 547     }
 548     value = qemu_opt_get(opts, "clock");
 549     if (value) {
 550         if (!strcmp(value, "host")) {
 551             rtc_clock = host_clock;
 552         } else if (!strcmp(value, "rt")) {
 553             rtc_clock = rt_clock;
 554         } else if (!strcmp(value, "vm")) {
 555             rtc_clock = vm_clock;
 556         } else {
 557             fprintf(stderr, "qemu: invalid option value '%s'\n", value);
 558             exit(1);
 559         }
 560     }
 561     value = qemu_opt_get(opts, "driftfix");
 562     if (value) {
 563         if (!strcmp(value, "slew")) {
 564             static GlobalProperty slew_lost_ticks[] = {
 565                 {
 566                     .driver   = "mc146818rtc",
 567                     .property = "lost_tick_policy",
 568                     .value    = "slew",
 569                 },
 570                 { /* end of list */ }
 571             };
 572
 573             qdev_prop_register_global_list(slew_lost_ticks);
 574         } else if (!strcmp(value, "none")) {
 575             /* discard is default */
 576         } else {
 577             fprintf(stderr, "qemu: invalid option value '%s'\n", value);
 578             exit(1);
 579         }
 580     }
 581 }
 582
 583 /***********************************************************/
 584 /* Bluetooth support */
 585 static int nb_hcis;
 586 static int cur_hci;
 587 static struct HCIInfo *hci_table[MAX_NICS];
 588
 589 static struct bt_vlan_s {
 590     struct bt_scatternet_s net;
 591     int id;
 592     struct bt_vlan_s *next;
 593 } *first_bt_vlan;
 594
 595 /* find or alloc a new bluetooth "VLAN" */
 596 static struct bt_scatternet_s *qemu_find_bt_vlan(int id)
 597 {
 598     struct bt_vlan_s **pvlan, *vlan;
 599     for (vlan = first_bt_vlan; vlan != NULL; vlan = vlan->next) {
 600         if (vlan->id == id)
 601             return &vlan->net;
 602     }
 603     vlan = g_malloc0(sizeof(struct bt_vlan_s));
 604     vlan->id = id;
 605     pvlan = &first_bt_vlan;
 606     while (*pvlan != NULL)
 607         pvlan = &(*pvlan)->next;
 608     *pvlan = vlan;
 609     return &vlan->net;
 610 }
 611
 612 static void null_hci_send(struct HCIInfo *hci, const uint8_t *data, int len)
 613 {
 614 }
 615
 616 static int null_hci_addr_set(struct HCIInfo *hci, const uint8_t *bd_addr)
 617 {
 618     return -ENOTSUP;
 619 }
 620
 621 static struct HCIInfo null_hci = {
 622     .cmd_send = null_hci_send,
 623     .sco_send = null_hci_send,
 624     .acl_send = null_hci_send,
 625     .bdaddr_set = null_hci_addr_set,
 626 };
 627
 628 struct HCIInfo *qemu_next_hci(void)
 629 {
 630     if (cur_hci == nb_hcis)
 631         return &null_hci;
 632
 633     return hci_table[cur_hci++];
 634 }
 635
 636 static struct HCIInfo *hci_init(const char *str)
 637 {
 638     char *endp;
 639     struct bt_scatternet_s *vlan = 0;
 640
 641     if (!strcmp(str, "null"))
 642         /* null */
 643         return &null_hci;
 644     else if (!strncmp(str, "host", 4) && (str[4] == '\0' || str[4] == ':'))
 645         /* host[:hciN] */
 646         return bt_host_hci(str[4] ? str + 5 : "hci0");
 647     else if (!strncmp(str, "hci", 3)) {
 648         /* hci[,vlan=n] */
 649         if (str[3]) {
 650             if (!strncmp(str + 3, ",vlan=", 6)) {
 651                 vlan = qemu_find_bt_vlan(strtol(str + 9, &endp, 0));
 652                 if (*endp)
 653                     vlan = 0;
 654             }
 655         } else
 656             vlan = qemu_find_bt_vlan(0);
 657         if (vlan)
 658            return bt_new_hci(vlan);
 659     }
 660
 661     fprintf(stderr, "qemu: Unknown bluetooth HCI `%s'.\n", str);
 662
 663     return 0;
 664 }
 665
 666 static int bt_hci_parse(const char *str)
 667 {
 668     struct HCIInfo *hci;
 669     bdaddr_t bdaddr;
 670
 671     if (nb_hcis >= MAX_NICS) {
 672         fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
 673         return -1;
 674     }
 675
 676     hci = hci_init(str);
 677     if (!hci)
 678         return -1;
 679
 680     bdaddr.b[0] = 0x52;
 681     bdaddr.b[1] = 0x54;
 682     bdaddr.b[2] = 0x00;
 683     bdaddr.b[3] = 0x12;
 684     bdaddr.b[4] = 0x34;
 685     bdaddr.b[5] = 0x56 + nb_hcis;
 686     hci->bdaddr_set(hci, bdaddr.b);
 687
 688     hci_table[nb_hcis++] = hci;
 689
 690     return 0;
 691 }
 692
 693 static void bt_vhci_add(int vlan_id)
 694 {
 695     struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
 696
 697     if (!vlan->slave)
 698         fprintf(stderr, "qemu: warning: adding a VHCI to "
 699                         "an empty scatternet %i\n", vlan_id);
 700
 701     bt_vhci_init(bt_new_hci(vlan));
 702 }
 703
 704 static struct bt_device_s *bt_device_add(const char *opt)
 705 {
 706     struct bt_scatternet_s *vlan;
 707     int vlan_id = 0;
 708     char *endp = strstr(opt, ",vlan=");
 709     int len = (endp ? endp - opt : strlen(opt)) + 1;
 710     char devname[10];
 711
 712     pstrcpy(devname, MIN(sizeof(devname), len), opt);
 713
 714     if (endp) {
 715         vlan_id = strtol(endp + 6, &endp, 0);
 716         if (*endp) {
 717             fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
 718             return 0;
 719         }
 720     }
 721
 722     vlan = qemu_find_bt_vlan(vlan_id);
 723
 724     if (!vlan->slave)
 725         fprintf(stderr, "qemu: warning: adding a slave device to "
 726                         "an empty scatternet %i\n", vlan_id);
 727
 728     if (!strcmp(devname, "keyboard"))
 729         return bt_keyboard_init(vlan);
 730
 731     fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
 732     return 0;
 733 }
 734
 735 static int bt_parse(const char *opt)
 736 {
 737     const char *endp, *p;
 738     int vlan;
 739
 740     if (strstart(opt, "hci", &endp)) {
 741         if (!*endp || *endp == ',') {
 742             if (*endp)
 743                 if (!strstart(endp, ",vlan=", 0))
 744                     opt = endp + 1;
 745
 746             return bt_hci_parse(opt);
 747        }
 748     } else if (strstart(opt, "vhci", &endp)) {
 749         if (!*endp || *endp == ',') {
 750             if (*endp) {
 751                 if (strstart(endp, ",vlan=", &p)) {
 752                     vlan = strtol(p, (char **) &endp, 0);
 753                     if (*endp) {
 754                         fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
 755                         return 1;
 756                     }
 757                 } else {
 758                     fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1);
 759                     return 1;
 760                 }
 761             } else
 762                 vlan = 0;
 763
 764             bt_vhci_add(vlan);
 765             return 0;
 766         }
 767     } else if (strstart(opt, "device:", &endp))
 768         return !bt_device_add(endp);
 769
 770     fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
 771     return 1;
 772 }
 773
 774 static int parse_sandbox(QemuOpts *opts, void *opaque)
 775 {
 776     /* FIXME: change this to true for 1.3 */
 777     if (qemu_opt_get_bool(opts, "enable", false)) {
 778 #ifdef CONFIG_SECCOMP
 779         if (seccomp_start() < 0) {
 780             qerror_report(ERROR_CLASS_GENERIC_ERROR,
 781                           "failed to install seccomp syscall filter in the kernel");
 782             return -1;
 783         }
 784 #else
 785         qerror_report(ERROR_CLASS_GENERIC_ERROR,
 786                       "sandboxing request but seccomp is not compiled into this build");
 787         return -1;
 788 #endif
 789     }
 790
 791     return 0;
 792 }
 793
 794 /***********************************************************/
 795 /* QEMU Block devices */
 796
 797 #define HD_OPTS "media=disk"
 798 #define CDROM_OPTS "media=cdrom"
 799 #define FD_OPTS ""
 800 #define PFLASH_OPTS ""
 801 #define MTD_OPTS ""
 802 #define SD_OPTS ""
 803
 804 static int drive_init_func(QemuOpts *opts, void *opaque)
 805 {
 806     int *use_scsi = opaque;
 807
 808     return drive_init(opts, *use_scsi) == NULL;
 809 }
 810
 811 static int drive_enable_snapshot(QemuOpts *opts, void *opaque)
 812 {
 813     if (NULL == qemu_opt_get(opts, "snapshot")) {
 814         qemu_opt_set(opts, "snapshot", "on");
 815     }
 816     return 0;
 817 }
 818
 819 static void default_drive(int enable, int snapshot, int use_scsi,
 820                           BlockInterfaceType type, int index,
 821                           const char *optstr)
 822 {
 823     QemuOpts *opts;
 824
 825     if (type == IF_DEFAULT) {
 826         type = use_scsi ? IF_SCSI : IF_IDE;
 827     }
 828
 829     if (!enable || drive_get_by_index(type, index)) {
 830         return;
 831     }
 832
 833     opts = drive_add(type, index, NULL, optstr);
 834     if (snapshot) {
 835         drive_enable_snapshot(opts, NULL);
 836     }
 837     if (!drive_init(opts, use_scsi)) {
 838         exit(1);
 839     }
 840 }
 841
 842 void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
 843 {
 844     boot_set_handler = func;
 845     boot_set_opaque = opaque;
 846 }
 847
 848 int qemu_boot_set(const char *boot_devices)
 849 {
 850     if (!boot_set_handler) {
 851         return -EINVAL;
 852     }
 853     return boot_set_handler(boot_set_opaque, boot_devices);
 854 }
 855
 856 static void validate_bootdevices(char *devices)
 857 {
 858     /* We just do some generic consistency checks */
 859     const char *p;
 860     int bitmap = 0;
 861
 862     for (p = devices; *p != '\0'; p++) {
 863         /* Allowed boot devices are:
 864          * a-b: floppy disk drives
 865          * c-f: IDE disk drives
 866          * g-m: machine implementation dependent drives
 867          * n-p: network devices
 868          * It's up to each machine implementation to check if the given boot
 869          * devices match the actual hardware implementation and firmware
 870          * features.
 871          */
 872         if (*p < 'a' || *p > 'p') {
 873             fprintf(stderr, "Invalid boot device '%c'\n", *p);
 874             exit(1);
 875         }
 876         if (bitmap & (1 << (*p - 'a'))) {
 877             fprintf(stderr, "Boot device '%c' was given twice\n", *p);
 878             exit(1);
 879         }
 880         bitmap |= 1 << (*p - 'a');
 881     }
 882 }
 883
 884 static void restore_boot_devices(void *opaque)
 885 {
 886     char *standard_boot_devices = opaque;
 887     static int first = 1;
 888
 889     /* Restore boot order and remove ourselves after the first boot */
 890     if (first) {
 891         first = 0;
 892         return;
 893     }
 894
 895     qemu_boot_set(standard_boot_devices);
 896
 897     qemu_unregister_reset(restore_boot_devices, standard_boot_devices);
 898     g_free(standard_boot_devices);
 899 }
 900
 901 void add_boot_device_path(int32_t bootindex, DeviceState *dev,
 902                           const char *suffix)
 903 {
 904     FWBootEntry *node, *i;
 905
 906     if (bootindex < 0) {
 907         return;
 908     }
 909
 910     assert(dev != NULL || suffix != NULL);
 911
 912     node = g_malloc0(sizeof(FWBootEntry));
 913     node->bootindex = bootindex;
 914     node->suffix = suffix ? g_strdup(suffix) : NULL;
 915     node->dev = dev;
 916
 917     QTAILQ_FOREACH(i, &fw_boot_order, link) {
 918         if (i->bootindex == bootindex) {
 919             fprintf(stderr, "Two devices with same boot index %d\n", bootindex);
 920             exit(1);
 921         } else if (i->bootindex < bootindex) {
 922             continue;
 923         }
 924         QTAILQ_INSERT_BEFORE(i, node, link);
 925         return;
 926     }
 927     QTAILQ_INSERT_TAIL(&fw_boot_order, node, link);
 928 }
 929
 930 /*
 931  * This function returns null terminated string that consist of new line
 932  * separated device paths.
 933  *
 934  * memory pointed by "size" is assigned total length of the array in bytes
 935  *
 936  */
 937 char *get_boot_devices_list(uint32_t *size)
 938 {
 939     FWBootEntry *i;
 940     uint32_t total = 0;
 941     char *list = NULL;
 942
 943     QTAILQ_FOREACH(i, &fw_boot_order, link) {
 944         char *devpath = NULL, *bootpath;
 945         int len;
 946
 947         if (i->dev) {
 948             devpath = qdev_get_fw_dev_path(i->dev);
 949             assert(devpath);
 950         }
 951
 952         if (i->suffix && devpath) {
 953             size_t bootpathlen = strlen(devpath) + strlen(i->suffix) + 1;
 954
 955             bootpath = g_malloc(bootpathlen);
 956             snprintf(bootpath, bootpathlen, "%s%s", devpath, i->suffix);
 957             g_free(devpath);
 958         } else if (devpath) {
 959             bootpath = devpath;
 960         } else {
 961             assert(i->suffix);
 962             bootpath = g_strdup(i->suffix);
 963         }
 964
 965         if (total) {
 966             list[total-1] = '\n';
 967         }
 968         len = strlen(bootpath) + 1;
 969         list = g_realloc(list, total + len);
 970         memcpy(&list[total], bootpath, len);
 971         total += len;
 972         g_free(bootpath);
 973     }
 974
 975     *size = total;
 976
 977     return list;
 978 }
 979
 980 static void numa_add(const char *optarg)
 981 {
 982     char option[128];
 983     char *endptr;
 984     unsigned long long value, endvalue;
 985     int nodenr;
 986
 987     value = endvalue = 0ULL;
 988
 989     optarg = get_opt_name(option, 128, optarg, ',') + 1;
 990     if (!strcmp(option, "node")) {
 991         if (get_param_value(option, 128, "nodeid", optarg) == 0) {
 992             nodenr = nb_numa_nodes;
 993         } else {
 994             nodenr = strtoull(option, NULL, 10);
 995         }
 996
 997         if (get_param_value(option, 128, "mem", optarg) == 0) {
 998             node_mem[nodenr] = 0;
 999         } else {
1000             int64_t sval;
1001             sval = strtosz(option, &endptr);
1002             if (sval < 0 || *endptr) {
1003                 fprintf(stderr, "qemu: invalid numa mem size: %s\n", optarg);
1004                 exit(1);
1005             }
1006             node_mem[nodenr] = sval;
1007         }
1008         if (get_param_value(option, 128, "cpus", optarg) != 0) {
1009             value = strtoull(option, &endptr, 10);
1010             if (*endptr == '-') {
1011                 endvalue = strtoull(endptr+1, &endptr, 10);
1012             } else {
1013                 endvalue = value;
1014             }
1015
1016             if (!(endvalue < MAX_CPUMASK_BITS)) {
1017                 endvalue = MAX_CPUMASK_BITS - 1;
1018                 fprintf(stderr,
1019                     "A max of %d CPUs are supported in a guest\n",
1020                      MAX_CPUMASK_BITS);
1021             }
1022
1023             bitmap_set(node_cpumask[nodenr], value, endvalue-value+1);
1024         }
1025         nb_numa_nodes++;
1026     }
1027     return;
1028 }
1029
1030 static void smp_parse(const char *optarg)
1031 {
1032     int smp, sockets = 0, threads = 0, cores = 0;
1033     char *endptr;
1034     char option[128];
1035
1036     smp = strtoul(optarg, &endptr, 10);
1037     if (endptr != optarg) {
1038         if (*endptr == ',') {
1039             endptr++;
1040         }
1041     }
1042     if (get_param_value(option, 128, "sockets", endptr) != 0)
1043         sockets = strtoull(option, NULL, 10);
1044     if (get_param_value(option, 128, "cores", endptr) != 0)
1045         cores = strtoull(option, NULL, 10);
1046     if (get_param_value(option, 128, "threads", endptr) != 0)
1047         threads = strtoull(option, NULL, 10);
1048     if (get_param_value(option, 128, "maxcpus", endptr) != 0)
1049         max_cpus = strtoull(option, NULL, 10);
1050
1051     /* compute missing values, prefer sockets over cores over threads */
1052     if (smp == 0 || sockets == 0) {
1053         sockets = sockets > 0 ? sockets : 1;
1054         cores = cores > 0 ? cores : 1;
1055         threads = threads > 0 ? threads : 1;
1056         if (smp == 0) {
1057             smp = cores * threads * sockets;
1058         }
1059     } else {
1060         if (cores == 0) {
1061             threads = threads > 0 ? threads : 1;
1062             cores = smp / (sockets * threads);
1063         } else {
1064             threads = smp / (cores * sockets);
1065         }
1066     }
1067     smp_cpus = smp;
1068     smp_cores = cores > 0 ? cores : 1;
1069     smp_threads = threads > 0 ? threads : 1;
1070     if (max_cpus == 0)
1071         max_cpus = smp_cpus;
1072 }
1073
1074 /***********************************************************/
1075 /* USB devices */
1076
1077 static int usb_device_add(const char *devname)
1078 {
1079     const char *p;
1080     USBDevice *dev = NULL;
1081
1082     if (!usb_enabled)
1083         return -1;
1084
1085     /* drivers with .usbdevice_name entry in USBDeviceInfo */
1086     dev = usbdevice_create(devname);
1087     if (dev)
1088         goto done;
1089
1090     /* the other ones */
1091 #ifndef CONFIG_LINUX
1092     /* only the linux version is qdev-ified, usb-bsd still needs this */
1093     if (strstart(devname, "host:", &p)) {
1094         dev = usb_host_device_open(usb_bus_find(-1), p);
1095     } else
1096 #endif
1097     if (!strcmp(devname, "bt") || strstart(devname, "bt:", &p)) {
1098         dev = usb_bt_init(usb_bus_find(-1),
1099                           devname[2] ? hci_init(p)
1100                                      : bt_new_hci(qemu_find_bt_vlan(0)));
1101     } else {
1102         return -1;
1103     }
1104     if (!dev)
1105         return -1;
1106
1107 done:
1108     return 0;
1109 }
1110
1111 static int usb_device_del(const char *devname)
1112 {
1113     int bus_num, addr;
1114     const char *p;
1115
1116     if (strstart(devname, "host:", &p))
1117         return usb_host_device_close(p);
1118
1119     if (!usb_enabled)
1120         return -1;
1121
1122     p = strchr(devname, '.');
1123     if (!p)
1124         return -1;
1125     bus_num = strtoul(devname, NULL, 0);
1126     addr = strtoul(p + 1, NULL, 0);
1127
1128     return usb_device_delete_addr(bus_num, addr);
1129 }
1130
1131 static int usb_parse(const char *cmdline)
1132 {
1133     int r;
1134     r = usb_device_add(cmdline);
1135     if (r < 0) {
1136         fprintf(stderr, "qemu: could not add USB device '%s'\n", cmdline);
1137     }
1138     return r;
1139 }
1140
1141 void do_usb_add(Monitor *mon, const QDict *qdict)
1142 {
1143     const char *devname = qdict_get_str(qdict, "devname");
1144     if (usb_device_add(devname) < 0) {
1145         error_report("could not add USB device '%s'", devname);
1146     }
1147 }
1148
1149 void do_usb_del(Monitor *mon, const QDict *qdict)
1150 {
1151     const char *devname = qdict_get_str(qdict, "devname");
1152     if (usb_device_del(devname) < 0) {
1153         error_report("could not delete USB device '%s'", devname);
1154     }
1155 }
1156
1157 /***********************************************************/
1158 /* PCMCIA/Cardbus */
1159
1160 static struct pcmcia_socket_entry_s {
1161     PCMCIASocket *socket;
1162     struct pcmcia_socket_entry_s *next;
1163 } *pcmcia_sockets = 0;
1164
1165 void pcmcia_socket_register(PCMCIASocket *socket)
1166 {
1167     struct pcmcia_socket_entry_s *entry;
1168
1169     entry = g_malloc(sizeof(struct pcmcia_socket_entry_s));
1170     entry->socket = socket;
1171     entry->next = pcmcia_sockets;
1172     pcmcia_sockets = entry;
1173 }
1174
1175 void pcmcia_socket_unregister(PCMCIASocket *socket)
1176 {
1177     struct pcmcia_socket_entry_s *entry, **ptr;
1178
1179     ptr = &pcmcia_sockets;
1180     for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
1181         if (entry->socket == socket) {
1182             *ptr = entry->next;
1183             g_free(entry);
1184         }
1185 }
1186
1187 void pcmcia_info(Monitor *mon)
1188 {
1189     struct pcmcia_socket_entry_s *iter;
1190
1191     if (!pcmcia_sockets)
1192         monitor_printf(mon, "No PCMCIA sockets\n");
1193
1194     for (iter = pcmcia_sockets; iter; iter = iter->next)
1195         monitor_printf(mon, "%s: %s\n", iter->socket->slot_string,
1196                        iter->socket->attached ? iter->socket->card_string :
1197                        "Empty");
1198 }
1199
1200 /***********************************************************/
1201 /* machine registration */
1202
1203 static QEMUMachine *first_machine = NULL;
1204 QEMUMachine *current_machine = NULL;
1205
1206 int qemu_register_machine(QEMUMachine *m)
1207 {
1208     QEMUMachine **pm;
1209     pm = &first_machine;
1210     while (*pm != NULL)
1211         pm = &(*pm)->next;
1212     m->next = NULL;
1213     *pm = m;
1214     return 0;
1215 }
1216
1217 static QEMUMachine *find_machine(const char *name)
1218 {
1219     QEMUMachine *m;
1220
1221     for(m = first_machine; m != NULL; m = m->next) {
1222         if (!strcmp(m->name, name))
1223             return m;
1224         if (m->alias && !strcmp(m->alias, name))
1225             return m;
1226     }
1227     return NULL;
1228 }
1229
1230 QEMUMachine *find_default_machine(void)
1231 {
1232     QEMUMachine *m;
1233
1234     for(m = first_machine; m != NULL; m = m->next) {
1235         if (m->is_default) {
1236             return m;
1237         }
1238     }
1239     return NULL;
1240 }
1241
1242 MachineInfoList *qmp_query_machines(Error **errp)
1243 {
1244     MachineInfoList *mach_list = NULL;
1245     QEMUMachine *m;
1246
1247     for (m = first_machine; m; m = m->next) {
1248         MachineInfoList *entry;
1249         MachineInfo *info;
1250
1251         info = g_malloc0(sizeof(*info));
1252         if (m->is_default) {
1253             info->has_is_default = true;
1254             info->is_default = true;
1255         }
1256
1257         if (m->alias) {
1258             info->has_alias = true;
1259             info->alias = g_strdup(m->alias);
1260         }
1261
1262         info->name = g_strdup(m->name);
1263
1264         entry = g_malloc0(sizeof(*entry));
1265         entry->value = info;
1266         entry->next = mach_list;
1267         mach_list = entry;
1268     }
1269
1270     return mach_list;
1271 }
1272
1273 /***********************************************************/
1274 /* main execution loop */
1275
1276 static void gui_update(void *opaque)
1277 {
1278     uint64_t interval = GUI_REFRESH_INTERVAL;
1279     DisplayState *ds = opaque;
1280     DisplayChangeListener *dcl = ds->listeners;
1281
1282     dpy_refresh(ds);
1283
1284     while (dcl != NULL) {
1285         if (dcl->gui_timer_interval &&
1286             dcl->gui_timer_interval < interval)
1287             interval = dcl->gui_timer_interval;
1288         dcl = dcl->next;
1289     }
1290     qemu_mod_timer(ds->gui_timer, interval + qemu_get_clock_ms(rt_clock));
1291 }
1292
1293 struct vm_change_state_entry {
1294     VMChangeStateHandler *cb;
1295     void *opaque;
1296     QLIST_ENTRY (vm_change_state_entry) entries;
1297 };
1298
1299 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1300
1301 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1302                                                      void *opaque)
1303 {
1304     VMChangeStateEntry *e;
1305
1306     e = g_malloc0(sizeof (*e));
1307
1308     e->cb = cb;
1309     e->opaque = opaque;
1310     QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1311     return e;
1312 }
1313
1314 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1315 {
1316     QLIST_REMOVE (e, entries);
1317     g_free (e);
1318 }
1319
1320 void vm_state_notify(int running, RunState state)
1321 {
1322     VMChangeStateEntry *e;
1323
1324     trace_vm_state_notify(running, state);
1325
1326     for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
1327         e->cb(e->opaque, running, state);
1328     }
1329 }
1330
1331 void vm_start(void)
1332 {
1333     if (!runstate_is_running()) {
1334         cpu_enable_ticks();
1335         runstate_set(RUN_STATE_RUNNING);
1336         vm_state_notify(1, RUN_STATE_RUNNING);
1337         resume_all_vcpus();
1338         monitor_protocol_event(QEVENT_RESUME, NULL);
1339     }
1340 }
1341
1342 /* reset/shutdown handler */
1343
1344 typedef struct QEMUResetEntry {
1345     QTAILQ_ENTRY(QEMUResetEntry) entry;
1346     QEMUResetHandler *func;
1347     void *opaque;
1348 } QEMUResetEntry;
1349
1350 static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
1351     QTAILQ_HEAD_INITIALIZER(reset_handlers);
1352 static int reset_requested;
1353 static int shutdown_requested, shutdown_signal = -1;
1354 static pid_t shutdown_pid;
1355 static int powerdown_requested;
1356 static int debug_requested;
1357 static int suspend_requested;
1358 static int wakeup_requested;
1359 static NotifierList suspend_notifiers =
1360     NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1361 static NotifierList wakeup_notifiers =
1362     NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1363 static uint32_t wakeup_reason_mask = ~0;
1364 static RunState vmstop_requested = RUN_STATE_MAX;
1365
1366 int qemu_shutdown_requested_get(void)
1367 {
1368     return shutdown_requested;
1369 }
1370
1371 int qemu_reset_requested_get(void)
1372 {
1373     return reset_requested;
1374 }
1375
1376 int qemu_shutdown_requested(void)
1377 {
1378     int r = shutdown_requested;
1379     shutdown_requested = 0;
1380     return r;
1381 }
1382
1383 void qemu_kill_report(void)
1384 {
1385     if (!qtest_enabled() && shutdown_signal != -1) {
1386         fprintf(stderr, "qemu: terminating on signal %d", shutdown_signal);
1387         if (shutdown_pid == 0) {
1388             /* This happens for eg ^C at the terminal, so it's worth
1389              * avoiding printing an odd message in that case.
1390              */
1391             fputc('\n', stderr);
1392         } else {
1393             fprintf(stderr, " from pid " FMT_pid "\n", shutdown_pid);
1394         }
1395         shutdown_signal = -1;
1396     }
1397 }
1398
1399 int qemu_reset_requested(void)
1400 {
1401     int r = reset_requested;
1402     reset_requested = 0;
1403     return r;
1404 }
1405
1406 static int qemu_suspend_requested(void)
1407 {
1408     int r = suspend_requested;
1409     suspend_requested = 0;
1410     return r;
1411 }
1412
1413 static int qemu_wakeup_requested(void)
1414 {
1415     int r = wakeup_requested;
1416     wakeup_requested = 0;
1417     return r;
1418 }
1419
1420 int qemu_powerdown_requested(void)
1421 {
1422     int r = powerdown_requested;
1423     powerdown_requested = 0;
1424     return r;
1425 }
1426
1427 static int qemu_debug_requested(void)
1428 {
1429     int r = debug_requested;
1430     debug_requested = 0;
1431     return r;
1432 }
1433
1434 /* We use RUN_STATE_MAX but any invalid value will do */
1435 static bool qemu_vmstop_requested(RunState *r)
1436 {
1437     if (vmstop_requested < RUN_STATE_MAX) {
1438         *r = vmstop_requested;
1439         vmstop_requested = RUN_STATE_MAX;
1440         return true;
1441     }
1442
1443     return false;
1444 }
1445
1446 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
1447 {
1448     QEMUResetEntry *re = g_malloc0(sizeof(QEMUResetEntry));
1449
1450     re->func = func;
1451     re->opaque = opaque;
1452     QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
1453 }
1454
1455 void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
1456 {
1457     QEMUResetEntry *re;
1458
1459     QTAILQ_FOREACH(re, &reset_handlers, entry) {
1460         if (re->func == func && re->opaque == opaque) {
1461             QTAILQ_REMOVE(&reset_handlers, re, entry);
1462             g_free(re);
1463             return;
1464         }
1465     }
1466 }
1467
1468 void qemu_devices_reset(void)
1469 {
1470     QEMUResetEntry *re, *nre;
1471
1472     /* reset all devices */
1473     QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
1474         re->func(re->opaque);
1475     }
1476 }
1477
1478 void qemu_system_reset(bool report)
1479 {
1480     if (current_machine && current_machine->reset) {
1481         current_machine->reset();
1482     } else {
1483         qemu_devices_reset();
1484     }
1485     if (report) {
1486         monitor_protocol_event(QEVENT_RESET, NULL);
1487     }
1488     cpu_synchronize_all_post_reset();
1489 }
1490
1491 void qemu_system_reset_request(void)
1492 {
1493     if (no_reboot) {
1494         shutdown_requested = 1;
1495     } else {
1496         reset_requested = 1;
1497     }
1498     cpu_stop_current();
1499     qemu_notify_event();
1500 }
1501
1502 static void qemu_system_suspend(void)
1503 {
1504     pause_all_vcpus();
1505     notifier_list_notify(&suspend_notifiers, NULL);
1506     runstate_set(RUN_STATE_SUSPENDED);
1507     monitor_protocol_event(QEVENT_SUSPEND, NULL);
1508 }
1509
1510 void qemu_system_suspend_request(void)
1511 {
1512     if (runstate_check(RUN_STATE_SUSPENDED)) {
1513         return;
1514     }
1515     suspend_requested = 1;
1516     cpu_stop_current();
1517     qemu_notify_event();
1518 }
1519
1520 void qemu_register_suspend_notifier(Notifier *notifier)
1521 {
1522     notifier_list_add(&suspend_notifiers, notifier);
1523 }
1524
1525 void qemu_system_wakeup_request(WakeupReason reason)
1526 {
1527     if (!runstate_check(RUN_STATE_SUSPENDED)) {
1528         return;
1529     }
1530     if (!(wakeup_reason_mask & (1 << reason))) {
1531         return;
1532     }
1533     runstate_set(RUN_STATE_RUNNING);
1534     notifier_list_notify(&wakeup_notifiers, &reason);
1535     wakeup_requested = 1;
1536     qemu_notify_event();
1537 }
1538
1539 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1540 {
1541     if (enabled) {
1542         wakeup_reason_mask |= (1 << reason);
1543     } else {
1544         wakeup_reason_mask &= ~(1 << reason);
1545     }
1546 }
1547
1548 void qemu_register_wakeup_notifier(Notifier *notifier)
1549 {
1550     notifier_list_add(&wakeup_notifiers, notifier);
1551 }
1552
1553 void qemu_system_killed(int signal, pid_t pid)
1554 {
1555     shutdown_signal = signal;
1556     shutdown_pid = pid;
1557     no_shutdown = 0;
1558     qemu_system_shutdown_request();
1559 }
1560
1561 void qemu_system_shutdown_request(void)
1562 {
1563     shutdown_requested = 1;
1564     qemu_notify_event();
1565 }
1566
1567 void qemu_system_powerdown_request(void)
1568 {
1569     powerdown_requested = 1;
1570     qemu_notify_event();
1571 }
1572
1573 void qemu_system_debug_request(void)
1574 {
1575     debug_requested = 1;
1576     qemu_notify_event();
1577 }
1578
1579 void qemu_system_vmstop_request(RunState state)
1580 {
1581     vmstop_requested = state;
1582     qemu_notify_event();
1583 }
1584
1585 qemu_irq qemu_system_powerdown;
1586
1587 static bool main_loop_should_exit(void)
1588 {
1589     RunState r;
1590     if (qemu_debug_requested()) {
1591         vm_stop(RUN_STATE_DEBUG);
1592     }
1593     if (qemu_suspend_requested()) {
1594         qemu_system_suspend();
1595     }
1596     if (qemu_shutdown_requested()) {
1597         qemu_kill_report();
1598         monitor_protocol_event(QEVENT_SHUTDOWN, NULL);
1599         if (no_shutdown) {
1600             vm_stop(RUN_STATE_SHUTDOWN);
1601         } else {
1602             return true;
1603         }
1604     }
1605     if (qemu_reset_requested()) {
1606         pause_all_vcpus();
1607         cpu_synchronize_all_states();
1608         qemu_system_reset(VMRESET_REPORT);
1609         resume_all_vcpus();
1610         if (runstate_check(RUN_STATE_INTERNAL_ERROR) ||
1611             runstate_check(RUN_STATE_SHUTDOWN)) {
1612             runstate_set(RUN_STATE_PAUSED);
1613         }
1614     }
1615     if (qemu_wakeup_requested()) {
1616         pause_all_vcpus();
1617         cpu_synchronize_all_states();
1618         qemu_system_reset(VMRESET_SILENT);
1619         resume_all_vcpus();
1620         monitor_protocol_event(QEVENT_WAKEUP, NULL);
1621     }
1622     if (qemu_powerdown_requested()) {
1623         monitor_protocol_event(QEVENT_POWERDOWN, NULL);
1624         qemu_irq_raise(qemu_system_powerdown);
1625     }
1626     if (qemu_vmstop_requested(&r)) {
1627         vm_stop(r);
1628     }
1629     return false;
1630 }
1631
1632 static void main_loop(void)
1633 {
1634     bool nonblocking;
1635     int last_io = 0;
1636 #ifdef CONFIG_PROFILER
1637     int64_t ti;
1638 #endif
1639     do {
1640         nonblocking = !kvm_enabled() && last_io > 0;
1641 #ifdef CONFIG_PROFILER
1642         ti = profile_getclock();
1643 #endif
1644         last_io = main_loop_wait(nonblocking);
1645 #ifdef CONFIG_PROFILER
1646         dev_time += profile_getclock() - ti;
1647 #endif
1648     } while (!main_loop_should_exit());
1649 }
1650
1651 static void version(void)
1652 {
1653     printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
1654 }
1655
1656 static void help(int exitcode)
1657 {
1658     version();
1659     printf("usage: %s [options] [disk_image]\n\n"
1660            "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1661             error_get_progname());
1662
1663 #define QEMU_OPTIONS_GENERATE_HELP
1664 #include "qemu-options-wrapper.h"
1665
1666     printf("\nDuring emulation, the following keys are useful:\n"
1667            "ctrl-alt-f      toggle full screen\n"
1668            "ctrl-alt-n      switch to virtual console 'n'\n"
1669            "ctrl-alt        toggle mouse and keyboard grab\n"
1670            "\n"
1671            "When using -nographic, press 'ctrl-a h' to get some help.\n");
1672
1673     exit(exitcode);
1674 }
1675
1676 #define HAS_ARG 0x0001
1677
1678 typedef struct QEMUOption {
1679     const char *name;
1680     int flags;
1681     int index;
1682     uint32_t arch_mask;
1683 } QEMUOption;
1684
1685 static const QEMUOption qemu_options[] = {
1686     { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1687 #define QEMU_OPTIONS_GENERATE_OPTIONS
1688 #include "qemu-options-wrapper.h"
1689     { NULL },
1690 };
1691
1692 static bool vga_available(void)
1693 {
1694     return qdev_exists("VGA") || qdev_exists("isa-vga");
1695 }
1696
1697 static bool cirrus_vga_available(void)
1698 {
1699     return qdev_exists("cirrus-vga") || qdev_exists("isa-cirrus-vga");
1700 }
1701
1702 static bool vmware_vga_available(void)
1703 {
1704     return qdev_exists("vmware-svga");
1705 }
1706
1707 static void select_vgahw (const char *p)
1708 {
1709     const char *opts;
1710
1711     vga_interface_type = VGA_NONE;
1712     if (strstart(p, "std", &opts)) {
1713         if (vga_available()) {
1714             vga_interface_type = VGA_STD;
1715         } else {
1716             fprintf(stderr, "Error: standard VGA not available\n");
1717             exit(0);
1718         }
1719     } else if (strstart(p, "cirrus", &opts)) {
1720         if (cirrus_vga_available()) {
1721             vga_interface_type = VGA_CIRRUS;
1722         } else {
1723             fprintf(stderr, "Error: Cirrus VGA not available\n");
1724             exit(0);
1725         }
1726     } else if (strstart(p, "vmware", &opts)) {
1727         if (vmware_vga_available()) {
1728             vga_interface_type = VGA_VMWARE;
1729         } else {
1730             fprintf(stderr, "Error: VMWare SVGA not available\n");
1731             exit(0);
1732         }
1733     } else if (strstart(p, "xenfb", &opts)) {
1734         vga_interface_type = VGA_XENFB;
1735     } else if (strstart(p, "qxl", &opts)) {
1736         vga_interface_type = VGA_QXL;
1737     } else if (!strstart(p, "none", &opts)) {
1738     invalid_vga:
1739         fprintf(stderr, "Unknown vga type: %s\n", p);
1740         exit(1);
1741     }
1742     while (*opts) {
1743         const char *nextopt;
1744
1745         if (strstart(opts, ",retrace=", &nextopt)) {
1746             opts = nextopt;
1747             if (strstart(opts, "dumb", &nextopt))
1748                 vga_retrace_method = VGA_RETRACE_DUMB;
1749             else if (strstart(opts, "precise", &nextopt))
1750                 vga_retrace_method = VGA_RETRACE_PRECISE;
1751             else goto invalid_vga;
1752         } else if (strstart(opts, ",cga_hacks=", &nextopt)) {
1753             opts = nextopt;
1754             while (*opts) {
1755                 if (strstart(opts, "all", &nextopt)) {
1756                     opts = nextopt;
1757                     vga_cga_hacks |= ~0;
1758                 } else if (strstart(opts, "palette_blanking", &nextopt)) {
1759                     opts = nextopt;
1760                     vga_cga_hacks |= VGA_CGA_HACK_PALETTE_BLANKING;
1761                 } else if (strstart(opts, "font_height", &nextopt)) {
1762                     opts = nextopt;
1763                     vga_cga_hacks |= VGA_CGA_HACK_FONT_HEIGHT;
1764                 } else {
1765                     break;
1766                 }
1767
1768                 if (*opts == '+') {
1769                     opts++;
1770                 } else {
1771                     break;
1772                 }
1773             }
1774         } else goto invalid_vga;
1775         opts = nextopt;
1776     }
1777 }
1778
1779 static DisplayType select_display(const char *p)
1780 {
1781     const char *opts;
1782     DisplayType display = DT_DEFAULT;
1783
1784     if (strstart(p, "sdl", &opts)) {
1785 #ifdef CONFIG_SDL
1786         display = DT_SDL;
1787         while (*opts) {
1788             const char *nextopt;
1789
1790             if (strstart(opts, ",frame=", &nextopt)) {
1791                 opts = nextopt;
1792                 if (strstart(opts, "on", &nextopt)) {
1793                     no_frame = 0;
1794                 } else if (strstart(opts, "off", &nextopt)) {
1795                     no_frame = 1;
1796                 } else {
1797                     goto invalid_sdl_args;
1798                 }
1799             } else if (strstart(opts, ",alt_grab=", &nextopt)) {
1800                 opts = nextopt;
1801                 if (strstart(opts, "on", &nextopt)) {
1802                     alt_grab = 1;
1803                 } else if (strstart(opts, "off", &nextopt)) {
1804                     alt_grab = 0;
1805                 } else {
1806                     goto invalid_sdl_args;
1807                 }
1808             } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
1809                 opts = nextopt;
1810                 if (strstart(opts, "on", &nextopt)) {
1811                     ctrl_grab = 1;
1812                 } else if (strstart(opts, "off", &nextopt)) {
1813                     ctrl_grab = 0;
1814                 } else {
1815                     goto invalid_sdl_args;
1816                 }
1817             } else if (strstart(opts, ",window_close=", &nextopt)) {
1818                 opts = nextopt;
1819                 if (strstart(opts, "on", &nextopt)) {
1820                     no_quit = 0;
1821                 } else if (strstart(opts, "off", &nextopt)) {
1822                     no_quit = 1;
1823                 } else {
1824                     goto invalid_sdl_args;
1825                 }
1826             } else {
1827             invalid_sdl_args:
1828                 fprintf(stderr, "Invalid SDL option string: %s\n", p);
1829                 exit(1);
1830             }
1831             opts = nextopt;
1832         }
1833 #else
1834         fprintf(stderr, "SDL support is disabled\n");
1835         exit(1);
1836 #endif
1837     } else if (strstart(p, "vnc", &opts)) {
1838 #ifdef CONFIG_VNC
1839         display_remote++;
1840
1841         if (*opts) {
1842             const char *nextopt;
1843
1844             if (strstart(opts, "=", &nextopt)) {
1845                 vnc_display = nextopt;
1846             }
1847         }
1848         if (!vnc_display) {
1849             fprintf(stderr, "VNC requires a display argument vnc=<display>\n");
1850             exit(1);
1851         }
1852 #else
1853         fprintf(stderr, "VNC support is disabled\n");
1854         exit(1);
1855 #endif
1856     } else if (strstart(p, "curses", &opts)) {
1857 #ifdef CONFIG_CURSES
1858         display = DT_CURSES;
1859 #else
1860         fprintf(stderr, "Curses support is disabled\n");
1861         exit(1);
1862 #endif
1863     } else if (strstart(p, "none", &opts)) {
1864         display = DT_NONE;
1865     } else {
1866         fprintf(stderr, "Unknown display type: %s\n", p);
1867         exit(1);
1868     }
1869
1870     return display;
1871 }
1872
1873 static int balloon_parse(const char *arg)
1874 {
1875     QemuOpts *opts;
1876
1877     if (strcmp(arg, "none") == 0) {
1878         return 0;
1879     }
1880
1881     if (!strncmp(arg, "virtio", 6)) {
1882         if (arg[6] == ',') {
1883             /* have params -> parse them */
1884             opts = qemu_opts_parse(qemu_find_opts("device"), arg+7, 0);
1885             if (!opts)
1886                 return  -1;
1887         } else {
1888             /* create empty opts */
1889             opts = qemu_opts_create(qemu_find_opts("device"), NULL, 0, NULL);
1890         }
1891         qemu_opt_set(opts, "driver", "virtio-balloon");
1892         return 0;
1893     }
1894
1895     return -1;
1896 }
1897
1898 char *qemu_find_file(int type, const char *name)
1899 {
1900     int len;
1901     const char *subdir;
1902     char *buf;
1903
1904     /* Try the name as a straight path first */
1905     if (access(name, R_OK) == 0) {
1906         return g_strdup(name);
1907     }
1908     switch (type) {
1909     case QEMU_FILE_TYPE_BIOS:
1910         subdir = "";
1911         break;
1912     case QEMU_FILE_TYPE_KEYMAP:
1913         subdir = "keymaps/";
1914         break;
1915     default:
1916         abort();
1917     }
1918     len = strlen(data_dir) + strlen(name) + strlen(subdir) + 2;
1919     buf = g_malloc0(len);
1920     snprintf(buf, len, "%s/%s%s", data_dir, subdir, name);
1921     if (access(buf, R_OK)) {
1922         g_free(buf);
1923         return NULL;
1924     }
1925     return buf;
1926 }
1927
1928 static int device_help_func(QemuOpts *opts, void *opaque)
1929 {
1930     return qdev_device_help(opts);
1931 }
1932
1933 static int device_init_func(QemuOpts *opts, void *opaque)
1934 {
1935     DeviceState *dev;
1936
1937     dev = qdev_device_add(opts);
1938     if (!dev)
1939         return -1;
1940     return 0;
1941 }
1942
1943 static int chardev_init_func(QemuOpts *opts, void *opaque)
1944 {
1945     CharDriverState *chr;
1946
1947     chr = qemu_chr_new_from_opts(opts, NULL);
1948     if (!chr)
1949         return -1;
1950     return 0;
1951 }
1952
1953 #ifdef CONFIG_VIRTFS
1954 static int fsdev_init_func(QemuOpts *opts, void *opaque)
1955 {
1956     int ret;
1957     ret = qemu_fsdev_add(opts);
1958
1959     return ret;
1960 }
1961 #endif
1962
1963 static int mon_init_func(QemuOpts *opts, void *opaque)
1964 {
1965     CharDriverState *chr;
1966     const char *chardev;
1967     const char *mode;
1968     int flags;
1969
1970     mode = qemu_opt_get(opts, "mode");
1971     if (mode == NULL) {
1972         mode = "readline";
1973     }
1974     if (strcmp(mode, "readline") == 0) {
1975         flags = MONITOR_USE_READLINE;
1976     } else if (strcmp(mode, "control") == 0) {
1977         flags = MONITOR_USE_CONTROL;
1978     } else {
1979         fprintf(stderr, "unknown monitor mode \"%s\"\n", mode);
1980         exit(1);
1981     }
1982
1983     if (qemu_opt_get_bool(opts, "pretty", 0))
1984         flags |= MONITOR_USE_PRETTY;
1985
1986     if (qemu_opt_get_bool(opts, "default", 0))
1987         flags |= MONITOR_IS_DEFAULT;
1988
1989     chardev = qemu_opt_get(opts, "chardev");
1990     chr = qemu_chr_find(chardev);
1991     if (chr == NULL) {
1992         fprintf(stderr, "chardev \"%s\" not found\n", chardev);
1993         exit(1);
1994     }
1995
1996     monitor_init(chr, flags);
1997     return 0;
1998 }
1999
2000 static void monitor_parse(const char *optarg, const char *mode)
2001 {
2002     static int monitor_device_index = 0;
2003     QemuOpts *opts;
2004     const char *p;
2005     char label[32];
2006     int def = 0;
2007
2008     if (strstart(optarg, "chardev:", &p)) {
2009         snprintf(label, sizeof(label), "%s", p);
2010     } else {
2011         snprintf(label, sizeof(label), "compat_monitor%d",
2012                  monitor_device_index);
2013         if (monitor_device_index == 0) {
2014             def = 1;
2015         }
2016         opts = qemu_chr_parse_compat(label, optarg);
2017         if (!opts) {
2018             fprintf(stderr, "parse error: %s\n", optarg);
2019             exit(1);
2020         }
2021     }
2022
2023     opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, NULL);
2024     if (!opts) {
2025         fprintf(stderr, "duplicate chardev: %s\n", label);
2026         exit(1);
2027     }
2028     qemu_opt_set(opts, "mode", mode);
2029     qemu_opt_set(opts, "chardev", label);
2030     if (def)
2031         qemu_opt_set(opts, "default", "on");
2032     monitor_device_index++;
2033 }
2034
2035 struct device_config {
2036     enum {
2037         DEV_USB,       /* -usbdevice     */
2038         DEV_BT,        /* -bt            */
2039         DEV_SERIAL,    /* -serial        */
2040         DEV_PARALLEL,  /* -parallel      */
2041         DEV_VIRTCON,   /* -virtioconsole */
2042         DEV_DEBUGCON,  /* -debugcon */
2043         DEV_GDB,       /* -gdb, -s */
2044     } type;
2045     const char *cmdline;
2046     Location loc;
2047     QTAILQ_ENTRY(device_config) next;
2048 };
2049 QTAILQ_HEAD(, device_config) device_configs = QTAILQ_HEAD_INITIALIZER(device_configs);
2050
2051 static void add_device_config(int type, const char *cmdline)
2052 {
2053     struct device_config *conf;
2054
2055     conf = g_malloc0(sizeof(*conf));
2056     conf->type = type;
2057     conf->cmdline = cmdline;
2058     loc_save(&conf->loc);
2059     QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2060 }
2061
2062 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2063 {
2064     struct device_config *conf;
2065     int rc;
2066
2067     QTAILQ_FOREACH(conf, &device_configs, next) {
2068         if (conf->type != type)
2069             continue;
2070         loc_push_restore(&conf->loc);
2071         rc = func(conf->cmdline);
2072         loc_pop(&conf->loc);
2073         if (0 != rc)
2074             return rc;
2075     }
2076     return 0;
2077 }
2078
2079 static int serial_parse(const char *devname)
2080 {
2081     static int index = 0;
2082     char label[32];
2083
2084     if (strcmp(devname, "none") == 0)
2085         return 0;
2086     if (index == MAX_SERIAL_PORTS) {
2087         fprintf(stderr, "qemu: too many serial ports\n");
2088         exit(1);
2089     }
2090     snprintf(label, sizeof(label), "serial%d", index);
2091     serial_hds[index] = qemu_chr_new(label, devname, NULL);
2092     if (!serial_hds[index]) {
2093         fprintf(stderr, "qemu: could not connect serial device"
2094                 " to character backend '%s'\n", devname);
2095         return -1;
2096     }
2097     index++;
2098     return 0;
2099 }
2100
2101 static int parallel_parse(const char *devname)
2102 {
2103     static int index = 0;
2104     char label[32];
2105
2106     if (strcmp(devname, "none") == 0)
2107         return 0;
2108     if (index == MAX_PARALLEL_PORTS) {
2109         fprintf(stderr, "qemu: too many parallel ports\n");
2110         exit(1);
2111     }
2112     snprintf(label, sizeof(label), "parallel%d", index);
2113     parallel_hds[index] = qemu_chr_new(label, devname, NULL);
2114     if (!parallel_hds[index]) {
2115         fprintf(stderr, "qemu: could not connect parallel device"
2116                 " to character backend '%s'\n", devname);
2117         return -1;
2118     }
2119     index++;
2120     return 0;
2121 }
2122
2123 static int virtcon_parse(const char *devname)
2124 {
2125     QemuOptsList *device = qemu_find_opts("device");
2126     static int index = 0;
2127     char label[32];
2128     QemuOpts *bus_opts, *dev_opts;
2129
2130     if (strcmp(devname, "none") == 0)
2131         return 0;
2132     if (index == MAX_VIRTIO_CONSOLES) {
2133         fprintf(stderr, "qemu: too many virtio consoles\n");
2134         exit(1);
2135     }
2136
2137     bus_opts = qemu_opts_create(device, NULL, 0, NULL);
2138     if (arch_type == QEMU_ARCH_S390X) {
2139         qemu_opt_set(bus_opts, "driver", "virtio-serial-s390");
2140     } else {
2141         qemu_opt_set(bus_opts, "driver", "virtio-serial-pci");
2142     }
2143
2144     dev_opts = qemu_opts_create(device, NULL, 0, NULL);
2145     qemu_opt_set(dev_opts, "driver", "virtconsole");
2146
2147     snprintf(label, sizeof(label), "virtcon%d", index);
2148     virtcon_hds[index] = qemu_chr_new(label, devname, NULL);
2149     if (!virtcon_hds[index]) {
2150         fprintf(stderr, "qemu: could not connect virtio console"
2151                 " to character backend '%s'\n", devname);
2152         return -1;
2153     }
2154     qemu_opt_set(dev_opts, "chardev", label);
2155
2156     index++;
2157     return 0;
2158 }
2159
2160 static int debugcon_parse(const char *devname)
2161 {
2162     QemuOpts *opts;
2163
2164     if (!qemu_chr_new("debugcon", devname, NULL)) {
2165         exit(1);
2166     }
2167     opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2168     if (!opts) {
2169         fprintf(stderr, "qemu: already have a debugcon device\n");
2170         exit(1);
2171     }
2172     qemu_opt_set(opts, "driver", "isa-debugcon");
2173     qemu_opt_set(opts, "chardev", "debugcon");
2174     return 0;
2175 }
2176
2177 static QEMUMachine *machine_parse(const char *name)
2178 {
2179     QEMUMachine *m, *machine = NULL;
2180
2181     if (name) {
2182         machine = find_machine(name);
2183     }
2184     if (machine) {
2185         return machine;
2186     }
2187     printf("Supported machines are:\n");
2188     for (m = first_machine; m != NULL; m = m->next) {
2189         if (m->alias) {
2190             printf("%-20s %s (alias of %s)\n", m->alias, m->desc, m->name);
2191         }
2192         printf("%-20s %s%s\n", m->name, m->desc,
2193                m->is_default ? " (default)" : "");
2194     }
2195     exit(!name || !is_help_option(name));
2196 }
2197
2198 static int tcg_init(void)
2199 {
2200     tcg_exec_init(tcg_tb_size * 1024 * 1024);
2201     return 0;
2202 }
2203
2204 static struct {
2205     const char *opt_name;
2206     const char *name;
2207     int (*available)(void);
2208     int (*init)(void);
2209     int *allowed;
2210 } accel_list[] = {
2211     { "tcg", "tcg", tcg_available, tcg_init, &tcg_allowed },
2212     { "xen", "Xen", xen_available, xen_init, &xen_allowed },
2213     { "kvm", "KVM", kvm_available, kvm_init, &kvm_allowed },
2214     { "qtest", "QTest", qtest_available, qtest_init, &qtest_allowed },
2215 };
2216
2217 static int configure_accelerator(void)
2218 {
2219     const char *p = NULL;
2220     char buf[10];
2221     int i, ret;
2222     bool accel_initialised = 0;
2223     bool init_failed = 0;
2224
2225     QemuOptsList *list = qemu_find_opts("machine");
2226     if (!QTAILQ_EMPTY(&list->head)) {
2227         p = qemu_opt_get(QTAILQ_FIRST(&list->head), "accel");
2228     }
2229
2230     if (p == NULL) {
2231         /* Use the default "accelerator", tcg */
2232         p = "tcg";
2233     }
2234
2235     while (!accel_initialised && *p != '\0') {
2236         if (*p == ':') {
2237             p++;
2238         }
2239         p = get_opt_name(buf, sizeof (buf), p, ':');
2240         for (i = 0; i < ARRAY_SIZE(accel_list); i++) {
2241             if (strcmp(accel_list[i].opt_name, buf) == 0) {
2242                 *(accel_list[i].allowed) = 1;
2243                 ret = accel_list[i].init();
2244                 if (ret < 0) {
2245                     init_failed = 1;
2246                     if (!accel_list[i].available()) {
2247                         printf("%s not supported for this target\n",
2248                                accel_list[i].name);
2249                     } else {
2250                         fprintf(stderr, "failed to initialize %s: %s\n",
2251                                 accel_list[i].name,
2252                                 strerror(-ret));
2253                     }
2254                     *(accel_list[i].allowed) = 0;
2255                 } else {
2256                     accel_initialised = 1;
2257                 }
2258                 break;
2259             }
2260         }
2261         if (i == ARRAY_SIZE(accel_list)) {
2262             fprintf(stderr, "\"%s\" accelerator does not exist.\n", buf);
2263         }
2264     }
2265
2266     if (!accel_initialised) {
2267         fprintf(stderr, "No accelerator found!\n");
2268         exit(1);
2269     }
2270
2271     if (init_failed) {
2272         fprintf(stderr, "Back to %s accelerator.\n", accel_list[i].name);
2273     }
2274
2275     return !accel_initialised;
2276 }
2277
2278 void qemu_add_exit_notifier(Notifier *notify)
2279 {
2280     notifier_list_add(&exit_notifiers, notify);
2281 }
2282
2283 void qemu_remove_exit_notifier(Notifier *notify)
2284 {
2285     notifier_remove(notify);
2286 }
2287
2288 static void qemu_run_exit_notifiers(void)
2289 {
2290     notifier_list_notify(&exit_notifiers, NULL);
2291 }
2292
2293 void qemu_add_machine_init_done_notifier(Notifier *notify)
2294 {
2295     notifier_list_add(&machine_init_done_notifiers, notify);
2296 }
2297
2298 static void qemu_run_machine_init_done_notifiers(void)
2299 {
2300     notifier_list_notify(&machine_init_done_notifiers, NULL);
2301 }
2302
2303 static const QEMUOption *lookup_opt(int argc, char **argv,
2304                                     const char **poptarg, int *poptind)
2305 {
2306     const QEMUOption *popt;
2307     int optind = *poptind;
2308     char *r = argv[optind];
2309     const char *optarg;
2310
2311     loc_set_cmdline(argv, optind, 1);
2312     optind++;
2313     /* Treat --foo the same as -foo.  */
2314     if (r[1] == '-')
2315         r++;
2316     popt = qemu_options;
2317     for(;;) {
2318         if (!popt->name) {
2319             error_report("invalid option");
2320             exit(1);
2321         }
2322         if (!strcmp(popt->name, r + 1))
2323             break;
2324         popt++;
2325     }
2326     if (popt->flags & HAS_ARG) {
2327         if (optind >= argc) {
2328             error_report("requires an argument");
2329             exit(1);
2330         }
2331         optarg = argv[optind++];
2332         loc_set_cmdline(argv, optind - 2, 2);
2333     } else {
2334         optarg = NULL;
2335     }
2336
2337     *poptarg = optarg;
2338     *poptind = optind;
2339
2340     return popt;
2341 }
2342
2343 static gpointer malloc_and_trace(gsize n_bytes)
2344 {
2345     void *ptr = malloc(n_bytes);
2346     trace_g_malloc(n_bytes, ptr);
2347     return ptr;
2348 }
2349
2350 static gpointer realloc_and_trace(gpointer mem, gsize n_bytes)
2351 {
2352     void *ptr = realloc(mem, n_bytes);
2353     trace_g_realloc(mem, n_bytes, ptr);
2354     return ptr;
2355 }
2356
2357 static void free_and_trace(gpointer mem)
2358 {
2359     trace_g_free(mem);
2360     free(mem);
2361 }
2362
2363 int qemu_init_main_loop(void)
2364 {
2365     return main_loop_init();
2366 }
2367
2368 int main(int argc, char **argv, char **envp)
2369 {
2370     int i;
2371     int snapshot, linux_boot;
2372     const char *icount_option = NULL;
2373     const char *initrd_filename;
2374     const char *kernel_filename, *kernel_cmdline;
2375     char boot_devices[33] = "cad"; /* default to HD->floppy->CD-ROM */
2376     DisplayState *ds;
2377     DisplayChangeListener *dcl;
2378     char hdachs_params[512];  /* save -hdachs to apply to later -hda */
2379     QemuOpts *hda_opts = NULL; /* save -hda to be modified by later -hdachs */
2380     QemuOpts *opts, *machine_opts;
2381     QemuOptsList *olist;
2382     int optind;
2383     const char *optarg;
2384     const char *loadvm = NULL;
2385     QEMUMachine *machine;
2386     const char *cpu_model;
2387     const char *vga_model = "none";
2388     const char *pid_file = NULL;
2389     const char *incoming = NULL;
2390 #ifdef CONFIG_VNC
2391     int show_vnc_port = 0;
2392 #endif
2393     bool defconfig = true;
2394     bool userconfig = true;
2395     const char *log_mask = NULL;
2396     const char *log_file = NULL;
2397     GMemVTable mem_trace = {
2398         .malloc = malloc_and_trace,
2399         .realloc = realloc_and_trace,
2400         .free = free_and_trace,
2401     };
2402     const char *trace_events = NULL;
2403     const char *trace_file = NULL;
2404
2405     atexit(qemu_run_exit_notifiers);
2406     error_set_progname(argv[0]);
2407
2408     g_mem_set_vtable(&mem_trace);
2409     if (!g_thread_supported()) {
2410 #if !GLIB_CHECK_VERSION(2, 31, 0)
2411         g_thread_init(NULL);
2412 #else
2413         fprintf(stderr, "glib threading failed to initialize.\n");
2414         exit(1);
2415 #endif
2416     }
2417
2418     module_call_init(MODULE_INIT_QOM);
2419
2420     runstate_init();
2421
2422     init_clocks();
2423     rtc_clock = host_clock;
2424
2425     qemu_cache_utils_init(envp);
2426
2427     QLIST_INIT (&vm_change_state_head);
2428     os_setup_early_signal_handling();
2429
2430     module_call_init(MODULE_INIT_MACHINE);
2431     machine = find_default_machine();
2432     cpu_model = NULL;
2433     ram_size = 0;
2434     snapshot = 0;
2435     snprintf(hdachs_params, sizeof(hdachs_params), "%s", HD_OPTS);
2436
2437     for (i = 0; i < MAX_NODES; i++) {
2438         node_mem[i] = 0;
2439         node_cpumask[i] = bitmap_new(MAX_CPUMASK_BITS);
2440     }
2441
2442     nb_numa_nodes = 0;
2443     nb_nics = 0;
2444
2445     autostart= 1;
2446
2447     /* first pass of option parsing */
2448     optind = 1;
2449     while (optind < argc) {
2450         if (argv[optind][0] != '-') {
2451             /* disk image */
2452             optind++;
2453             continue;
2454         } else {
2455             const QEMUOption *popt;
2456
2457             popt = lookup_opt(argc, argv, &optarg, &optind);
2458             switch (popt->index) {
2459             case QEMU_OPTION_nodefconfig:
2460                 defconfig = false;
2461                 break;
2462             case QEMU_OPTION_nouserconfig:
2463                 userconfig = false;
2464                 break;
2465             }
2466         }
2467     }
2468
2469     if (defconfig) {
2470         int ret;
2471         ret = qemu_read_default_config_files(userconfig);
2472         if (ret < 0) {
2473             exit(1);
2474         }
2475     }
2476
2477     /* second pass of option parsing */
2478     optind = 1;
2479     for(;;) {
2480         if (optind >= argc)
2481             break;
2482         if (argv[optind][0] != '-') {
2483             hda_opts = drive_add(IF_DEFAULT, 0, argv[optind++], hdachs_params);
2484         } else {
2485             const QEMUOption *popt;
2486
2487             popt = lookup_opt(argc, argv, &optarg, &optind);
2488             if (!(popt->arch_mask & arch_type)) {
2489                 printf("Option %s not supported for this target\n", popt->name);
2490                 exit(1);
2491             }
2492             switch(popt->index) {
2493             case QEMU_OPTION_M:
2494                 machine = machine_parse(optarg);
2495                 break;
2496             case QEMU_OPTION_cpu:
2497                 /* hw initialization will check this */
2498                 cpu_model = optarg;
2499                 break;
2500             case QEMU_OPTION_hda:
2501                 hda_opts = drive_add(IF_DEFAULT, 0, optarg, hdachs_params);
2502                 break;
2503             case QEMU_OPTION_hdb:
2504             case QEMU_OPTION_hdc:
2505             case QEMU_OPTION_hdd:
2506                 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
2507                           HD_OPTS);
2508                 break;
2509             case QEMU_OPTION_drive:
2510                 if (drive_def(optarg) == NULL) {
2511                     exit(1);
2512                 }
2513                 break;
2514             case QEMU_OPTION_set:
2515                 if (qemu_set_option(optarg) != 0)
2516                     exit(1);
2517                 break;
2518             case QEMU_OPTION_global:
2519                 if (qemu_global_option(optarg) != 0)
2520                     exit(1);
2521                 break;
2522             case QEMU_OPTION_mtdblock:
2523                 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
2524                 break;
2525             case QEMU_OPTION_sd:
2526                 drive_add(IF_SD, 0, optarg, SD_OPTS);
2527                 break;
2528             case QEMU_OPTION_pflash:
2529                 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
2530                 break;
2531             case QEMU_OPTION_snapshot:
2532                 snapshot = 1;
2533                 break;
2534             case QEMU_OPTION_hdachs:
2535                 {
2536                     int cyls, heads, secs, translation;
2537                     const char *p;
2538                     cyls = heads = secs = 0;
2539                     translation = BIOS_ATA_TRANSLATION_AUTO;
2540                     p = optarg;
2541                     cyls = strtol(p, (char **)&p, 0);
2542                     if (cyls < 1 || cyls > 16383)
2543                         goto chs_fail;
2544                     if (*p != ',')
2545                         goto chs_fail;
2546                     p++;
2547                     heads = strtol(p, (char **)&p, 0);
2548                     if (heads < 1 || heads > 16)
2549                         goto chs_fail;
2550                     if (*p != ',')
2551                         goto chs_fail;
2552                     p++;
2553                     secs = strtol(p, (char **)&p, 0);
2554                     if (secs < 1 || secs > 63)
2555                         goto chs_fail;
2556                     if (*p == ',') {
2557                         p++;
2558                         if (!strcmp(p, "none"))
2559                             translation = BIOS_ATA_TRANSLATION_NONE;
2560                         else if (!strcmp(p, "lba"))
2561                             translation = BIOS_ATA_TRANSLATION_LBA;
2562                         else if (!strcmp(p, "auto"))
2563                             translation = BIOS_ATA_TRANSLATION_AUTO;
2564                         else
2565                             goto chs_fail;
2566                     } else if (*p != '\0') {
2567                     chs_fail:
2568                         fprintf(stderr, "qemu: invalid physical CHS format\n");
2569                         exit(1);
2570                     }
2571                     snprintf(hdachs_params, sizeof(hdachs_params),
2572                              "%s,cyls=%d,heads=%d,secs=%d%s",
2573                              HD_OPTS , cyls, heads, secs,
2574                              translation == BIOS_ATA_TRANSLATION_LBA ?
2575                              ",trans=lba" :
2576                              translation == BIOS_ATA_TRANSLATION_NONE ?
2577                              ",trans=none" : "");
2578                     if (hda_opts != NULL) {
2579                         char num[16];
2580                         snprintf(num, sizeof(num), "%d", cyls);
2581                         qemu_opt_set(hda_opts, "cyls", num);
2582                         snprintf(num, sizeof(num), "%d", heads);
2583                         qemu_opt_set(hda_opts, "heads", num);
2584                         snprintf(num, sizeof(num), "%d", secs);
2585                         qemu_opt_set(hda_opts, "secs", num);
2586                         if (translation == BIOS_ATA_TRANSLATION_LBA)
2587                             qemu_opt_set(hda_opts, "trans", "lba");
2588                         if (translation == BIOS_ATA_TRANSLATION_NONE)
2589                             qemu_opt_set(hda_opts, "trans", "none");
2590                     }
2591                 }
2592                 break;
2593             case QEMU_OPTION_numa:
2594                 if (nb_numa_nodes >= MAX_NODES) {
2595                     fprintf(stderr, "qemu: too many NUMA nodes\n");
2596                     exit(1);
2597                 }
2598                 numa_add(optarg);
2599                 break;
2600             case QEMU_OPTION_display:
2601                 display_type = select_display(optarg);
2602                 break;
2603             case QEMU_OPTION_nographic:
2604                 display_type = DT_NOGRAPHIC;
2605                 break;
2606             case QEMU_OPTION_curses:
2607 #ifdef CONFIG_CURSES
2608                 display_type = DT_CURSES;
2609 #else
2610                 fprintf(stderr, "Curses support is disabled\n");
2611                 exit(1);
2612 #endif
2613                 break;
2614             case QEMU_OPTION_portrait:
2615                 graphic_rotate = 90;
2616                 break;
2617             case QEMU_OPTION_rotate:
2618                 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
2619                 if (graphic_rotate != 0 && graphic_rotate != 90 &&
2620                     graphic_rotate != 180 && graphic_rotate != 270) {
2621                     fprintf(stderr,
2622                         "qemu: only 90, 180, 270 deg rotation is available\n");
2623                     exit(1);
2624                 }
2625                 break;
2626             case QEMU_OPTION_kernel:
2627                 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg);
2628                 break;
2629             case QEMU_OPTION_initrd:
2630                 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg);
2631                 break;
2632             case QEMU_OPTION_append:
2633                 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg);
2634                 break;
2635             case QEMU_OPTION_dtb:
2636                 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg);
2637                 break;
2638             case QEMU_OPTION_cdrom:
2639                 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
2640                 break;
2641             case QEMU_OPTION_boot:
2642                 {
2643                     static const char * const params[] = {
2644                         "order", "once", "menu",
2645                         "splash", "splash-time", NULL
2646                     };
2647                     char buf[sizeof(boot_devices)];
2648                     char *standard_boot_devices;
2649                     int legacy = 0;
2650
2651                     if (!strchr(optarg, '=')) {
2652                         legacy = 1;
2653                         pstrcpy(buf, sizeof(buf), optarg);
2654                     } else if (check_params(buf, sizeof(buf), params, optarg) < 0) {
2655                         fprintf(stderr,
2656                                 "qemu: unknown boot parameter '%s' in '%s'\n",
2657                                 buf, optarg);
2658                         exit(1);
2659                     }
2660
2661                     if (legacy ||
2662                         get_param_value(buf, sizeof(buf), "order", optarg)) {
2663                         validate_bootdevices(buf);
2664                         pstrcpy(boot_devices, sizeof(boot_devices), buf);
2665                     }
2666                     if (!legacy) {
2667                         if (get_param_value(buf, sizeof(buf),
2668                                             "once", optarg)) {
2669                             validate_bootdevices(buf);
2670                             standard_boot_devices = g_strdup(boot_devices);
2671                             pstrcpy(boot_devices, sizeof(boot_devices), buf);
2672                             qemu_register_reset(restore_boot_devices,
2673                                                 standard_boot_devices);
2674                         }
2675                         if (get_param_value(buf, sizeof(buf),
2676                                             "menu", optarg)) {
2677                             if (!strcmp(buf, "on")) {
2678                                 boot_menu = 1;
2679                             } else if (!strcmp(buf, "off")) {
2680                                 boot_menu = 0;
2681                             } else {
2682                                 fprintf(stderr,
2683                                         "qemu: invalid option value '%s'\n",
2684                                         buf);
2685                                 exit(1);
2686                             }
2687                         }
2688                         qemu_opts_parse(qemu_find_opts("boot-opts"),
2689                                         optarg, 0);
2690                     }
2691                 }
2692                 break;
2693             case QEMU_OPTION_fda:
2694             case QEMU_OPTION_fdb:
2695                 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
2696                           optarg, FD_OPTS);
2697                 break;
2698             case QEMU_OPTION_no_fd_bootchk:
2699                 fd_bootchk = 0;
2700                 break;
2701             case QEMU_OPTION_netdev:
2702                 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
2703                     exit(1);
2704                 }
2705                 break;
2706             case QEMU_OPTION_net:
2707                 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
2708                     exit(1);
2709                 }
2710                 break;
2711 #ifdef CONFIG_LIBISCSI
2712             case QEMU_OPTION_iscsi:
2713                 opts = qemu_opts_parse(qemu_find_opts("iscsi"), optarg, 0);
2714                 if (!opts) {
2715                     exit(1);
2716                 }
2717                 break;
2718 #endif
2719 #ifdef CONFIG_SLIRP
2720             case QEMU_OPTION_tftp:
2721                 legacy_tftp_prefix = optarg;
2722                 break;
2723             case QEMU_OPTION_bootp:
2724                 legacy_bootp_filename = optarg;
2725                 break;
2726             case QEMU_OPTION_redir:
2727                 if (net_slirp_redir(optarg) < 0)
2728                     exit(1);
2729                 break;
2730 #endif
2731             case QEMU_OPTION_bt:
2732                 add_device_config(DEV_BT, optarg);
2733                 break;
2734             case QEMU_OPTION_audio_help:
2735                 if (!(audio_available())) {
2736                     printf("Option %s not supported for this target\n", popt->name);
2737                     exit(1);
2738                 }
2739                 AUD_help ();
2740                 exit (0);
2741                 break;
2742             case QEMU_OPTION_soundhw:
2743                 if (!(audio_available())) {
2744                     printf("Option %s not supported for this target\n", popt->name);
2745                     exit(1);
2746                 }
2747                 select_soundhw (optarg);
2748                 break;
2749             case QEMU_OPTION_h:
2750                 help(0);
2751                 break;
2752             case QEMU_OPTION_version:
2753                 version();
2754                 exit(0);
2755                 break;
2756             case QEMU_OPTION_m: {
2757                 int64_t value;
2758                 uint64_t sz;
2759                 char *end;
2760
2761                 value = strtosz(optarg, &end);
2762                 if (value < 0 || *end) {
2763                     fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
2764                     exit(1);
2765                 }
2766                 sz = QEMU_ALIGN_UP((uint64_t)value, 8192);
2767                 ram_size = sz;
2768                 if (ram_size != sz) {
2769                     fprintf(stderr, "qemu: ram size too large\n");
2770                     exit(1);
2771                 }
2772                 break;
2773             }
2774             case QEMU_OPTION_mempath:
2775                 mem_path = optarg;
2776                 break;
2777 #ifdef MAP_POPULATE
2778             case QEMU_OPTION_mem_prealloc:
2779                 mem_prealloc = 1;
2780                 break;
2781 #endif
2782             case QEMU_OPTION_d:
2783                 log_mask = optarg;
2784                 break;
2785             case QEMU_OPTION_D:
2786                 log_file = optarg;
2787                 break;
2788             case QEMU_OPTION_s:
2789                 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
2790                 break;
2791             case QEMU_OPTION_gdb:
2792                 add_device_config(DEV_GDB, optarg);
2793                 break;
2794             case QEMU_OPTION_L:
2795                 data_dir = optarg;
2796                 break;
2797             case QEMU_OPTION_bios:
2798                 bios_name = optarg;
2799                 break;
2800             case QEMU_OPTION_singlestep:
2801                 singlestep = 1;
2802                 break;
2803             case QEMU_OPTION_S:
2804                 autostart = 0;
2805                 break;
2806             case QEMU_OPTION_k:
2807                 keyboard_layout = optarg;
2808                 break;
2809             case QEMU_OPTION_localtime:
2810                 rtc_utc = 0;
2811                 break;
2812             case QEMU_OPTION_vga:
2813                 vga_model = optarg;
2814                 default_vga = 0;
2815                 break;
2816             case QEMU_OPTION_g:
2817                 {
2818                     const char *p;
2819                     int w, h, depth;
2820                     p = optarg;
2821                     w = strtol(p, (char **)&p, 10);
2822                     if (w <= 0) {
2823                     graphic_error:
2824                         fprintf(stderr, "qemu: invalid resolution or depth\n");
2825                         exit(1);
2826                     }
2827                     if (*p != 'x')
2828                         goto graphic_error;
2829                     p++;
2830                     h = strtol(p, (char **)&p, 10);
2831                     if (h <= 0)
2832                         goto graphic_error;
2833                     if (*p == 'x') {
2834                         p++;
2835                         depth = strtol(p, (char **)&p, 10);
2836                         if (depth != 8 && depth != 15 && depth != 16 &&
2837                             depth != 24 && depth != 32)
2838                             goto graphic_error;
2839                     } else if (*p == '\0') {
2840                         depth = graphic_depth;
2841                     } else {
2842                         goto graphic_error;
2843                     }
2844
2845                     graphic_width = w;
2846                     graphic_height = h;
2847                     graphic_depth = depth;
2848                 }
2849                 break;
2850             case QEMU_OPTION_echr:
2851                 {
2852                     char *r;
2853                     term_escape_char = strtol(optarg, &r, 0);
2854                     if (r == optarg)
2855                         printf("Bad argument to echr\n");
2856                     break;
2857                 }
2858             case QEMU_OPTION_monitor:
2859                 monitor_parse(optarg, "readline");
2860                 default_monitor = 0;
2861                 break;
2862             case QEMU_OPTION_qmp:
2863                 monitor_parse(optarg, "control");
2864                 default_monitor = 0;
2865                 break;
2866             case QEMU_OPTION_mon:
2867                 opts = qemu_opts_parse(qemu_find_opts("mon"), optarg, 1);
2868                 if (!opts) {
2869                     exit(1);
2870                 }
2871                 default_monitor = 0;
2872                 break;
2873             case QEMU_OPTION_chardev:
2874                 opts = qemu_opts_parse(qemu_find_opts("chardev"), optarg, 1);
2875                 if (!opts) {
2876                     exit(1);
2877                 }
2878                 break;
2879             case QEMU_OPTION_fsdev:
2880                 olist = qemu_find_opts("fsdev");
2881                 if (!olist) {
2882                     fprintf(stderr, "fsdev is not supported by this qemu build.\n");
2883                     exit(1);
2884                 }
2885                 opts = qemu_opts_parse(olist, optarg, 1);
2886                 if (!opts) {
2887                     fprintf(stderr, "parse error: %s\n", optarg);
2888                     exit(1);
2889                 }
2890                 break;
2891             case QEMU_OPTION_virtfs: {
2892                 QemuOpts *fsdev;
2893                 QemuOpts *device;
2894                 const char *writeout, *sock_fd, *socket;
2895
2896                 olist = qemu_find_opts("virtfs");
2897                 if (!olist) {
2898                     fprintf(stderr, "virtfs is not supported by this qemu build.\n");
2899                     exit(1);
2900                 }
2901                 opts = qemu_opts_parse(olist, optarg, 1);
2902                 if (!opts) {
2903                     fprintf(stderr, "parse error: %s\n", optarg);
2904                     exit(1);
2905                 }
2906
2907                 if (qemu_opt_get(opts, "fsdriver") == NULL ||
2908                     qemu_opt_get(opts, "mount_tag") == NULL) {
2909                     fprintf(stderr, "Usage: -virtfs fsdriver,mount_tag=tag.\n");
2910                     exit(1);
2911                 }
2912                 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
2913                                          qemu_opt_get(opts, "mount_tag"),
2914                                          1, NULL);
2915                 if (!fsdev) {
2916                     fprintf(stderr, "duplicate fsdev id: %s\n",
2917                             qemu_opt_get(opts, "mount_tag"));
2918                     exit(1);
2919                 }
2920
2921                 writeout = qemu_opt_get(opts, "writeout");
2922                 if (writeout) {
2923 #ifdef CONFIG_SYNC_FILE_RANGE
2924                     qemu_opt_set(fsdev, "writeout", writeout);
2925 #else
2926                     fprintf(stderr, "writeout=immediate not supported on "
2927                             "this platform\n");
2928                     exit(1);
2929 #endif
2930                 }
2931                 qemu_opt_set(fsdev, "fsdriver", qemu_opt_get(opts, "fsdriver"));
2932                 qemu_opt_set(fsdev, "path", qemu_opt_get(opts, "path"));
2933                 qemu_opt_set(fsdev, "security_model",
2934                              qemu_opt_get(opts, "security_model"));
2935                 socket = qemu_opt_get(opts, "socket");
2936                 if (socket) {
2937                     qemu_opt_set(fsdev, "socket", socket);
2938                 }
2939                 sock_fd = qemu_opt_get(opts, "sock_fd");
2940                 if (sock_fd) {
2941                     qemu_opt_set(fsdev, "sock_fd", sock_fd);
2942                 }
2943
2944                 qemu_opt_set_bool(fsdev, "readonly",
2945                                 qemu_opt_get_bool(opts, "readonly", 0));
2946                 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
2947                                           NULL);
2948                 qemu_opt_set(device, "driver", "virtio-9p-pci");
2949                 qemu_opt_set(device, "fsdev",
2950                              qemu_opt_get(opts, "mount_tag"));
2951                 qemu_opt_set(device, "mount_tag",
2952                              qemu_opt_get(opts, "mount_tag"));
2953                 break;
2954             }
2955             case QEMU_OPTION_virtfs_synth: {
2956                 QemuOpts *fsdev;
2957                 QemuOpts *device;
2958
2959                 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
2960                                          1, NULL);
2961                 if (!fsdev) {
2962                     fprintf(stderr, "duplicate option: %s\n", "virtfs_synth");
2963                     exit(1);
2964                 }
2965                 qemu_opt_set(fsdev, "fsdriver", "synth");
2966
2967                 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
2968                                           NULL);
2969                 qemu_opt_set(device, "driver", "virtio-9p-pci");
2970                 qemu_opt_set(device, "fsdev", "v_synth");
2971                 qemu_opt_set(device, "mount_tag", "v_synth");
2972                 break;
2973             }
2974             case QEMU_OPTION_serial:
2975                 add_device_config(DEV_SERIAL, optarg);
2976                 default_serial = 0;
2977                 if (strncmp(optarg, "mon:", 4) == 0) {
2978                     default_monitor = 0;
2979                 }
2980                 break;
2981             case QEMU_OPTION_watchdog:
2982                 if (watchdog) {
2983                     fprintf(stderr,
2984                             "qemu: only one watchdog option may be given\n");
2985                     return 1;
2986                 }
2987                 watchdog = optarg;
2988                 break;
2989             case QEMU_OPTION_watchdog_action:
2990                 if (select_watchdog_action(optarg) == -1) {
2991                     fprintf(stderr, "Unknown -watchdog-action parameter\n");
2992                     exit(1);
2993                 }
2994                 break;
2995             case QEMU_OPTION_virtiocon:
2996                 add_device_config(DEV_VIRTCON, optarg);
2997                 default_virtcon = 0;
2998                 if (strncmp(optarg, "mon:", 4) == 0) {
2999                     default_monitor = 0;
3000                 }
3001                 break;
3002             case QEMU_OPTION_parallel:
3003                 add_device_config(DEV_PARALLEL, optarg);
3004                 default_parallel = 0;
3005                 if (strncmp(optarg, "mon:", 4) == 0) {
3006                     default_monitor = 0;
3007                 }
3008                 break;
3009             case QEMU_OPTION_debugcon:
3010                 add_device_config(DEV_DEBUGCON, optarg);
3011                 break;
3012             case QEMU_OPTION_loadvm:
3013                 loadvm = optarg;
3014                 break;
3015             case QEMU_OPTION_full_screen:
3016                 full_screen = 1;
3017                 break;
3018 #ifdef CONFIG_SDL
3019             case QEMU_OPTION_no_frame:
3020                 no_frame = 1;
3021                 break;
3022             case QEMU_OPTION_alt_grab:
3023                 alt_grab = 1;
3024                 break;
3025             case QEMU_OPTION_ctrl_grab:
3026                 ctrl_grab = 1;
3027                 break;
3028             case QEMU_OPTION_no_quit:
3029                 no_quit = 1;
3030                 break;
3031             case QEMU_OPTION_sdl:
3032                 display_type = DT_SDL;
3033                 break;
3034 #else
3035             case QEMU_OPTION_no_frame:
3036             case QEMU_OPTION_alt_grab:
3037             case QEMU_OPTION_ctrl_grab:
3038             case QEMU_OPTION_no_quit:
3039             case QEMU_OPTION_sdl:
3040                 fprintf(stderr, "SDL support is disabled\n");
3041                 exit(1);
3042 #endif
3043             case QEMU_OPTION_pidfile:
3044                 pid_file = optarg;
3045                 break;
3046             case QEMU_OPTION_win2k_hack:
3047                 win2k_install_hack = 1;
3048                 break;
3049             case QEMU_OPTION_rtc_td_hack: {
3050                 static GlobalProperty slew_lost_ticks[] = {
3051                     {
3052                         .driver   = "mc146818rtc",
3053                         .property = "lost_tick_policy",
3054                         .value    = "slew",
3055                     },
3056                     { /* end of list */ }
3057                 };
3058
3059                 qdev_prop_register_global_list(slew_lost_ticks);
3060                 break;
3061             }
3062             case QEMU_OPTION_acpitable:
3063                 do_acpitable_option(optarg);
3064                 break;
3065             case QEMU_OPTION_smbios:
3066                 do_smbios_option(optarg);
3067                 break;
3068             case QEMU_OPTION_enable_kvm:
3069                 olist = qemu_find_opts("machine");
3070                 qemu_opts_parse(olist, "accel=kvm", 0);
3071                 break;
3072             case QEMU_OPTION_machine:
3073                 olist = qemu_find_opts("machine");
3074                 opts = qemu_opts_parse(olist, optarg, 1);
3075                 if (!opts) {
3076                     fprintf(stderr, "parse error: %s\n", optarg);
3077                     exit(1);
3078                 }
3079                 optarg = qemu_opt_get(opts, "type");
3080                 if (optarg) {
3081                     machine = machine_parse(optarg);
3082                 }
3083                 break;
3084             case QEMU_OPTION_usb:
3085                 usb_enabled = 1;
3086                 break;
3087             case QEMU_OPTION_usbdevice:
3088                 usb_enabled = 1;
3089                 add_device_config(DEV_USB, optarg);
3090                 break;
3091             case QEMU_OPTION_device:
3092                 if (!qemu_opts_parse(qemu_find_opts("device"), optarg, 1)) {
3093                     exit(1);
3094                 }
3095                 break;
3096             case QEMU_OPTION_smp:
3097                 smp_parse(optarg);
3098                 if (smp_cpus < 1) {
3099                     fprintf(stderr, "Invalid number of CPUs\n");
3100                     exit(1);
3101                 }
3102                 if (max_cpus < smp_cpus) {
3103                     fprintf(stderr, "maxcpus must be equal to or greater than "
3104                             "smp\n");
3105                     exit(1);
3106                 }
3107                 if (max_cpus > 255) {
3108                     fprintf(stderr, "Unsupported number of maxcpus\n");
3109                     exit(1);
3110                 }
3111                 break;
3112             case QEMU_OPTION_vnc:
3113 #ifdef CONFIG_VNC
3114                 display_remote++;
3115                 vnc_display = optarg;
3116 #else
3117                 fprintf(stderr, "VNC support is disabled\n");
3118                 exit(1);
3119 #endif
3120                 break;
3121             case QEMU_OPTION_no_acpi:
3122                 acpi_enabled = 0;
3123                 break;
3124             case QEMU_OPTION_no_hpet:
3125                 no_hpet = 1;
3126                 break;
3127             case QEMU_OPTION_balloon:
3128                 if (balloon_parse(optarg) < 0) {
3129                     fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
3130                     exit(1);
3131                 }
3132                 break;
3133             case QEMU_OPTION_no_reboot:
3134                 no_reboot = 1;
3135                 break;
3136             case QEMU_OPTION_no_shutdown:
3137                 no_shutdown = 1;
3138                 break;
3139             case QEMU_OPTION_show_cursor:
3140                 cursor_hide = 0;
3141                 break;
3142             case QEMU_OPTION_uuid:
3143                 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
3144                     fprintf(stderr, "Fail to parse UUID string."
3145                             " Wrong format.\n");
3146                     exit(1);
3147                 }
3148                 break;
3149             case QEMU_OPTION_option_rom:
3150                 if (nb_option_roms >= MAX_OPTION_ROMS) {
3151                     fprintf(stderr, "Too many option ROMs\n");
3152                     exit(1);
3153                 }
3154                 opts = qemu_opts_parse(qemu_find_opts("option-rom"), optarg, 1);
3155                 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3156                 option_rom[nb_option_roms].bootindex =
3157                     qemu_opt_get_number(opts, "bootindex", -1);
3158                 if (!option_rom[nb_option_roms].name) {
3159                     fprintf(stderr, "Option ROM file is not specified\n");
3160                     exit(1);
3161                 }
3162                 nb_option_roms++;
3163                 break;
3164             case QEMU_OPTION_semihosting:
3165                 semihosting_enabled = 1;
3166                 break;
3167             case QEMU_OPTION_name:
3168                 qemu_name = g_strdup(optarg);
3169                  {
3170                      char *p = strchr(qemu_name, ',');
3171                      if (p != NULL) {
3172                         *p++ = 0;
3173                         if (strncmp(p, "process=", 8)) {
3174                             fprintf(stderr, "Unknown subargument %s to -name\n", p);
3175                             exit(1);
3176                         }
3177                         p += 8;
3178                         os_set_proc_name(p);
3179                      }
3180                  }
3181                 break;
3182             case QEMU_OPTION_prom_env:
3183                 if (nb_prom_envs >= MAX_PROM_ENVS) {
3184                     fprintf(stderr, "Too many prom variables\n");
3185                     exit(1);
3186                 }
3187                 prom_envs[nb_prom_envs] = optarg;
3188                 nb_prom_envs++;
3189                 break;
3190             case QEMU_OPTION_old_param:
3191                 old_param = 1;
3192                 break;
3193             case QEMU_OPTION_clock:
3194                 configure_alarms(optarg);
3195                 break;
3196             case QEMU_OPTION_startdate:
3197                 configure_rtc_date_offset(optarg, 1);
3198                 break;
3199             case QEMU_OPTION_rtc:
3200                 opts = qemu_opts_parse(qemu_find_opts("rtc"), optarg, 0);
3201                 if (!opts) {
3202                     exit(1);
3203                 }
3204                 configure_rtc(opts);
3205                 break;
3206             case QEMU_OPTION_tb_size:
3207                 tcg_tb_size = strtol(optarg, NULL, 0);
3208                 if (tcg_tb_size < 0) {
3209                     tcg_tb_size = 0;
3210                 }
3211                 break;
3212             case QEMU_OPTION_icount:
3213                 icount_option = optarg;
3214                 break;
3215             case QEMU_OPTION_incoming:
3216                 incoming = optarg;
3217                 runstate_set(RUN_STATE_INMIGRATE);
3218                 break;
3219             case QEMU_OPTION_nodefaults:
3220                 default_serial = 0;
3221                 default_parallel = 0;
3222                 default_virtcon = 0;
3223                 default_monitor = 0;
3224                 default_net = 0;
3225                 default_floppy = 0;
3226                 default_cdrom = 0;
3227                 default_sdcard = 0;
3228                 default_vga = 0;
3229                 break;
3230             case QEMU_OPTION_xen_domid:
3231                 if (!(xen_available())) {
3232                     printf("Option %s not supported for this target\n", popt->name);
3233                     exit(1);
3234                 }
3235                 xen_domid = atoi(optarg);
3236                 break;
3237             case QEMU_OPTION_xen_create:
3238                 if (!(xen_available())) {
3239                     printf("Option %s not supported for this target\n", popt->name);
3240                     exit(1);
3241                 }
3242                 xen_mode = XEN_CREATE;
3243                 break;
3244             case QEMU_OPTION_xen_attach:
3245                 if (!(xen_available())) {
3246                     printf("Option %s not supported for this target\n", popt->name);
3247                     exit(1);
3248                 }
3249                 xen_mode = XEN_ATTACH;
3250                 break;
3251             case QEMU_OPTION_trace:
3252             {
3253                 opts = qemu_opts_parse(qemu_find_opts("trace"), optarg, 0);
3254                 if (!opts) {
3255                     exit(1);
3256                 }
3257                 trace_events = qemu_opt_get(opts, "events");
3258                 trace_file = qemu_opt_get(opts, "file");
3259                 break;
3260             }
3261             case QEMU_OPTION_readconfig:
3262                 {
3263                     int ret = qemu_read_config_file(optarg);
3264                     if (ret < 0) {
3265                         fprintf(stderr, "read config %s: %s\n", optarg,
3266                             strerror(-ret));
3267                         exit(1);
3268                     }
3269                     break;
3270                 }
3271             case QEMU_OPTION_spice:
3272                 olist = qemu_find_opts("spice");
3273                 if (!olist) {
3274                     fprintf(stderr, "spice is not supported by this qemu build.\n");
3275                     exit(1);
3276                 }
3277                 opts = qemu_opts_parse(olist, optarg, 0);
3278                 if (!opts) {
3279                     fprintf(stderr, "parse error: %s\n", optarg);
3280                     exit(1);
3281                 }
3282                 break;
3283             case QEMU_OPTION_writeconfig:
3284                 {
3285                     FILE *fp;
3286                     if (strcmp(optarg, "-") == 0) {
3287                         fp = stdout;
3288                     } else {
3289                         fp = fopen(optarg, "w");
3290                         if (fp == NULL) {
3291                             fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
3292                             exit(1);
3293                         }
3294                     }
3295                     qemu_config_write(fp);
3296                     fclose(fp);
3297                     break;
3298                 }
3299             case QEMU_OPTION_qtest:
3300                 qtest_chrdev = optarg;
3301                 break;
3302             case QEMU_OPTION_qtest_log:
3303                 qtest_log = optarg;
3304                 break;
3305             case QEMU_OPTION_sandbox:
3306                 opts = qemu_opts_parse(qemu_find_opts("sandbox"), optarg, 1);
3307                 if (!opts) {
3308                     exit(0);
3309                 }
3310                 break;
3311             default:
3312                 os_parse_cmd_args(popt->index, optarg);
3313             }
3314         }
3315     }
3316     loc_set_none();
3317
3318     if (qemu_opts_foreach(qemu_find_opts("sandbox"), parse_sandbox, NULL, 0)) {
3319         exit(1);
3320     }
3321
3322     if (machine == NULL) {
3323         fprintf(stderr, "No machine found.\n");
3324         exit(1);
3325     }
3326
3327     if (machine->hw_version) {
3328         qemu_set_version(machine->hw_version);
3329     }
3330
3331     /* Init CPU def lists, based on config
3332      * - Must be called after all the qemu_read_config_file() calls
3333      * - Must be called before list_cpus()
3334      * - Must be called before machine->init()
3335      */
3336     cpudef_init();
3337
3338     if (cpu_model && is_help_option(cpu_model)) {
3339         list_cpus(stdout, &fprintf, cpu_model);
3340         exit(0);
3341     }
3342
3343     /* Open the logfile at this point, if necessary. We can't open the logfile
3344      * when encountering either of the logging options (-d or -D) because the
3345      * other one may be encountered later on the command line, changing the
3346      * location or level of logging.
3347      */
3348     if (log_mask) {
3349         if (log_file) {
3350             set_cpu_log_filename(log_file);
3351         }
3352         set_cpu_log(log_mask);
3353     }
3354
3355     if (!trace_backend_init(trace_events, trace_file)) {
3356         exit(1);
3357     }
3358
3359     /* If no data_dir is specified then try to find it relative to the
3360        executable path.  */
3361     if (!data_dir) {
3362         data_dir = os_find_datadir(argv[0]);
3363     }
3364     /* If all else fails use the install path specified when building. */
3365     if (!data_dir) {
3366         data_dir = CONFIG_QEMU_DATADIR;
3367     }
3368
3369     /*
3370      * Default to max_cpus = smp_cpus, in case the user doesn't
3371      * specify a max_cpus value.
3372      */
3373     if (!max_cpus)
3374         max_cpus = smp_cpus;
3375
3376     machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
3377     if (smp_cpus > machine->max_cpus) {
3378         fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
3379                 "supported by machine `%s' (%d)\n", smp_cpus,  machine->name,
3380                 machine->max_cpus);
3381         exit(1);
3382     }
3383
3384     /*
3385      * Get the default machine options from the machine if it is not already
3386      * specified either by the configuration file or by the command line.
3387      */
3388     if (machine->default_machine_opts) {
3389         qemu_opts_set_defaults(qemu_find_opts("machine"),
3390                                machine->default_machine_opts, 0);
3391     }
3392
3393     qemu_opts_foreach(qemu_find_opts("device"), default_driver_check, NULL, 0);
3394     qemu_opts_foreach(qemu_find_opts("global"), default_driver_check, NULL, 0);
3395
3396     if (machine->no_serial) {
3397         default_serial = 0;
3398     }
3399     if (machine->no_parallel) {
3400         default_parallel = 0;
3401     }
3402     if (!machine->use_virtcon) {
3403         default_virtcon = 0;
3404     }
3405     if (machine->no_floppy) {
3406         default_floppy = 0;
3407     }
3408     if (machine->no_cdrom) {
3409         default_cdrom = 0;
3410     }
3411     if (machine->no_sdcard) {
3412         default_sdcard = 0;
3413     }
3414
3415     if (display_type == DT_NOGRAPHIC) {
3416         if (default_parallel)
3417             add_device_config(DEV_PARALLEL, "null");
3418         if (default_serial && default_monitor) {
3419             add_device_config(DEV_SERIAL, "mon:stdio");
3420         } else if (default_virtcon && default_monitor) {
3421             add_device_config(DEV_VIRTCON, "mon:stdio");
3422         } else {
3423             if (default_serial)
3424                 add_device_config(DEV_SERIAL, "stdio");
3425             if (default_virtcon)
3426                 add_device_config(DEV_VIRTCON, "stdio");
3427             if (default_monitor)
3428                 monitor_parse("stdio", "readline");
3429         }
3430     } else {
3431         if (default_serial)
3432             add_device_config(DEV_SERIAL, "vc:80Cx24C");
3433         if (default_parallel)
3434             add_device_config(DEV_PARALLEL, "vc:80Cx24C");
3435         if (default_monitor)
3436             monitor_parse("vc:80Cx24C", "readline");
3437         if (default_virtcon)
3438             add_device_config(DEV_VIRTCON, "vc:80Cx24C");
3439     }
3440
3441     socket_init();
3442
3443     if (qemu_opts_foreach(qemu_find_opts("chardev"), chardev_init_func, NULL, 1) != 0)
3444         exit(1);
3445 #ifdef CONFIG_VIRTFS
3446     if (qemu_opts_foreach(qemu_find_opts("fsdev"), fsdev_init_func, NULL, 1) != 0) {
3447         exit(1);
3448     }
3449 #endif
3450
3451     os_daemonize();
3452
3453     if (pid_file && qemu_create_pidfile(pid_file) != 0) {
3454         os_pidfile_error();
3455         exit(1);
3456     }
3457
3458     /* init the memory */
3459     if (ram_size == 0) {
3460         ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
3461     }
3462
3463     if (qemu_opts_foreach(qemu_find_opts("device"), device_help_func, NULL, 0)
3464         != 0) {
3465         exit(0);
3466     }
3467
3468     configure_accelerator();
3469
3470     qemu_init_cpu_loop();
3471     if (qemu_init_main_loop()) {
3472         fprintf(stderr, "qemu_init_main_loop failed\n");
3473         exit(1);
3474     }
3475
3476     machine_opts = qemu_opts_find(qemu_find_opts("machine"), 0);
3477     if (machine_opts) {
3478         kernel_filename = qemu_opt_get(machine_opts, "kernel");
3479         initrd_filename = qemu_opt_get(machine_opts, "initrd");
3480         kernel_cmdline = qemu_opt_get(machine_opts, "append");
3481     } else {
3482         kernel_filename = initrd_filename = kernel_cmdline = NULL;
3483     }
3484
3485     if (!kernel_cmdline) {
3486         kernel_cmdline = "";
3487     }
3488
3489     linux_boot = (kernel_filename != NULL);
3490
3491     if (!linux_boot && *kernel_cmdline != '\0') {
3492         fprintf(stderr, "-append only allowed with -kernel option\n");
3493         exit(1);
3494     }
3495
3496     if (!linux_boot && initrd_filename != NULL) {
3497         fprintf(stderr, "-initrd only allowed with -kernel option\n");
3498         exit(1);
3499     }
3500
3501     if (!linux_boot && machine_opts && qemu_opt_get(machine_opts, "dtb")) {
3502         fprintf(stderr, "-dtb only allowed with -kernel option\n");
3503         exit(1);
3504     }
3505
3506     os_set_line_buffering();
3507
3508     if (init_timer_alarm() < 0) {
3509         fprintf(stderr, "could not initialize alarm timer\n");
3510         exit(1);
3511     }
3512
3513 #ifdef CONFIG_SPICE
3514     /* spice needs the timers to be initialized by this point */
3515     qemu_spice_init();
3516 #endif
3517
3518     if (icount_option && (kvm_enabled() || xen_enabled())) {
3519         fprintf(stderr, "-icount is not allowed with kvm or xen\n");
3520         exit(1);
3521     }
3522     configure_icount(icount_option);
3523
3524     if (net_init_clients() < 0) {
3525         exit(1);
3526     }
3527
3528     /* init the bluetooth world */
3529     if (foreach_device_config(DEV_BT, bt_parse))
3530         exit(1);
3531
3532     if (!xen_enabled()) {
3533         /* On 32-bit hosts, QEMU is limited by virtual address space */
3534         if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
3535             fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
3536             exit(1);
3537         }
3538     }
3539
3540     cpu_exec_init_all();
3541
3542     bdrv_init_with_whitelist();
3543
3544     blk_mig_init();
3545
3546     /* open the virtual block devices */
3547     if (snapshot)
3548         qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot, NULL, 0);
3549     if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func, &machine->use_scsi, 1) != 0)
3550         exit(1);
3551
3552     default_drive(default_cdrom, snapshot, machine->use_scsi,
3553                   IF_DEFAULT, 2, CDROM_OPTS);
3554     default_drive(default_floppy, snapshot, machine->use_scsi,
3555                   IF_FLOPPY, 0, FD_OPTS);
3556     default_drive(default_sdcard, snapshot, machine->use_scsi,
3557                   IF_SD, 0, SD_OPTS);
3558
3559     register_savevm_live(NULL, "ram", 0, 4, &savevm_ram_handlers, NULL);
3560
3561     if (nb_numa_nodes > 0) {
3562         int i;
3563
3564         if (nb_numa_nodes > MAX_NODES) {
3565             nb_numa_nodes = MAX_NODES;
3566         }
3567
3568         /* If no memory size if given for any node, assume the default case
3569          * and distribute the available memory equally across all nodes
3570          */
3571         for (i = 0; i < nb_numa_nodes; i++) {
3572             if (node_mem[i] != 0)
3573                 break;
3574         }
3575         if (i == nb_numa_nodes) {
3576             uint64_t usedmem = 0;
3577
3578             /* On Linux, the each node's border has to be 8MB aligned,
3579              * the final node gets the rest.
3580              */
3581             for (i = 0; i < nb_numa_nodes - 1; i++) {
3582                 node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1);
3583                 usedmem += node_mem[i];
3584             }
3585             node_mem[i] = ram_size - usedmem;
3586         }
3587
3588         for (i = 0; i < nb_numa_nodes; i++) {
3589             if (!bitmap_empty(node_cpumask[i], MAX_CPUMASK_BITS)) {
3590                 break;
3591             }
3592         }
3593         /* assigning the VCPUs round-robin is easier to implement, guest OSes
3594          * must cope with this anyway, because there are BIOSes out there in
3595          * real machines which also use this scheme.
3596          */
3597         if (i == nb_numa_nodes) {
3598             for (i = 0; i < max_cpus; i++) {
3599                 set_bit(i, node_cpumask[i % nb_numa_nodes]);
3600             }
3601         }
3602     }
3603
3604     if (qemu_opts_foreach(qemu_find_opts("mon"), mon_init_func, NULL, 1) != 0) {
3605         exit(1);
3606     }
3607
3608     if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
3609         exit(1);
3610     if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
3611         exit(1);
3612     if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
3613         exit(1);
3614     if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
3615         exit(1);
3616
3617     /* If no default VGA is requested, the default is "none".  */
3618     if (default_vga && cirrus_vga_available()) {
3619         vga_model = "cirrus";
3620     }
3621     select_vgahw(vga_model);
3622
3623     if (watchdog) {
3624         i = select_watchdog(watchdog);
3625         if (i > 0)
3626             exit (i == 1 ? 1 : 0);
3627     }
3628
3629     if (machine->compat_props) {
3630         qdev_prop_register_global_list(machine->compat_props);
3631     }
3632     qemu_add_globals();
3633
3634     qdev_machine_init();
3635
3636     machine->init(ram_size, boot_devices,
3637                   kernel_filename, kernel_cmdline, initrd_filename, cpu_model);
3638
3639     cpu_synchronize_all_post_init();
3640
3641     set_numa_modes();
3642
3643     current_machine = machine;
3644
3645     /* init USB devices */
3646     if (usb_enabled) {
3647         if (foreach_device_config(DEV_USB, usb_parse) < 0)
3648             exit(1);
3649     }
3650
3651     /* init generic devices */
3652     if (qemu_opts_foreach(qemu_find_opts("device"), device_init_func, NULL, 1) != 0)
3653         exit(1);
3654
3655     net_check_clients();
3656
3657     /* just use the first displaystate for the moment */
3658     ds = get_displaystate();
3659
3660     if (using_spice)
3661         display_remote++;
3662     if (display_type == DT_DEFAULT && !display_remote) {
3663 #if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
3664         display_type = DT_SDL;
3665 #elif defined(CONFIG_VNC)
3666         vnc_display = "localhost:0,to=99";
3667         show_vnc_port = 1;
3668 #else
3669         display_type = DT_NONE;
3670 #endif
3671     }
3672
3673
3674     /* init local displays */
3675     switch (display_type) {
3676     case DT_NOGRAPHIC:
3677         break;
3678 #if defined(CONFIG_CURSES)
3679     case DT_CURSES:
3680         curses_display_init(ds, full_screen);
3681         break;
3682 #endif
3683 #if defined(CONFIG_SDL)
3684     case DT_SDL:
3685         sdl_display_init(ds, full_screen, no_frame);
3686         break;
3687 #elif defined(CONFIG_COCOA)
3688     case DT_SDL:
3689         cocoa_display_init(ds, full_screen);
3690         break;
3691 #endif
3692     default:
3693         break;
3694     }
3695
3696     /* must be after terminal init, SDL library changes signal handlers */
3697     os_setup_signal_handling();
3698
3699 #ifdef CONFIG_VNC
3700     /* init remote displays */
3701     if (vnc_display) {
3702         vnc_display_init(ds);
3703         if (vnc_display_open(ds, vnc_display) < 0) {
3704             fprintf(stderr, "Failed to start VNC server on `%s'\n",
3705                     vnc_display);
3706             exit(1);
3707         }
3708
3709         if (show_vnc_port) {
3710             printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
3711         }
3712     }
3713 #endif
3714 #ifdef CONFIG_SPICE
3715     if (using_spice && !qxl_enabled) {
3716         qemu_spice_display_init(ds);
3717     }
3718 #endif
3719
3720     /* display setup */
3721     dpy_resize(ds);
3722     dcl = ds->listeners;
3723     while (dcl != NULL) {
3724         if (dcl->dpy_refresh != NULL) {
3725             ds->gui_timer = qemu_new_timer_ms(rt_clock, gui_update, ds);
3726             qemu_mod_timer(ds->gui_timer, qemu_get_clock_ms(rt_clock));
3727             break;
3728         }
3729         dcl = dcl->next;
3730     }
3731     text_consoles_set_display(ds);
3732
3733     if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
3734         exit(1);
3735     }
3736
3737     qdev_machine_creation_done();
3738
3739     if (rom_load_all() != 0) {
3740         fprintf(stderr, "rom loading failed\n");
3741         exit(1);
3742     }
3743
3744     /* TODO: once all bus devices are qdevified, this should be done
3745      * when bus is created by qdev.c */
3746     qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
3747     qemu_run_machine_init_done_notifiers();
3748
3749     qemu_system_reset(VMRESET_SILENT);
3750     if (loadvm) {
3751         if (load_vmstate(loadvm) < 0) {
3752             autostart = 0;
3753         }
3754     }
3755
3756     if (incoming) {
3757         Error *errp = NULL;
3758         int ret = qemu_start_incoming_migration(incoming, &errp);
3759         if (ret < 0) {
3760             if (error_is_set(&errp)) {
3761                 fprintf(stderr, "Migrate: %s\n", error_get_pretty(errp));
3762                 error_free(errp);
3763             }
3764             fprintf(stderr, "Migration failed. Exit code %s(%d), exiting.\n",
3765                     incoming, ret);
3766             exit(ret);
3767         }
3768     } else if (autostart) {
3769         vm_start();
3770     }
3771
3772     os_setup_post();
3773
3774     resume_all_vcpus();
3775     main_loop();
3776     bdrv_close_all();
3777     pause_all_vcpus();
3778     net_cleanup();
3779     res_free();
3780
3781     return 0;
3782 }