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 DisplayType display_type = DT_DEFAULT;
 183 int display_remote = 0;
 184 const char* keyboard_layout = NULL;
 185 ram_addr_t ram_size;
 186 const char *mem_path = NULL;
 187 #ifdef MAP_POPULATE
 188 int mem_prealloc = 0; /* force preallocation of physical target memory */
 189 #endif
 190 int nb_nics;
 191 NICInfo nd_table[MAX_NICS];
 192 int autostart;
 193 static int rtc_utc = 1;
 194 static int rtc_date_offset = -1; /* -1 means no change */
 195 QEMUClock *rtc_clock;
 196 int vga_interface_type = VGA_NONE;
 197 static int full_screen = 0;
 198 #ifdef CONFIG_SDL
 199 static int no_frame = 0;
 200 #endif
 201 int no_quit = 0;
 202 CharDriverState *serial_hds[MAX_SERIAL_PORTS];
 203 CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
 204 CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES];
 205 int win2k_install_hack = 0;
 206 int usb_enabled = 0;
 207 int singlestep = 0;
 208 int smp_cpus = 1;
 209 int max_cpus = 0;
 210 int smp_cores = 1;
 211 int smp_threads = 1;
 212 #ifdef CONFIG_VNC
 213 const char *vnc_display;
 214 #endif
 215 int acpi_enabled = 1;
 216 int no_hpet = 0;
 217 int fd_bootchk = 1;
 218 int no_reboot = 0;
 219 int no_shutdown = 0;
 220 int cursor_hide = 1;
 221 int graphic_rotate = 0;
 222 const char *watchdog;
 223 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
 224 int nb_option_roms;
 225 int semihosting_enabled = 0;
 226 int old_param = 0;
 227 const char *qemu_name;
 228 int alt_grab = 0;
 229 int ctrl_grab = 0;
 230 unsigned int nb_prom_envs = 0;
 231 const char *prom_envs[MAX_PROM_ENVS];
 232 int boot_menu;
 233 uint8_t *boot_splash_filedata;
 234 int boot_splash_filedata_size;
 235 uint8_t qemu_extra_params_fw[2];
 236
 237 typedef struct FWBootEntry FWBootEntry;
 238
 239 struct FWBootEntry {
 240     QTAILQ_ENTRY(FWBootEntry) link;
 241     int32_t bootindex;
 242     DeviceState *dev;
 243     char *suffix;
 244 };
 245
 246 QTAILQ_HEAD(, FWBootEntry) fw_boot_order = QTAILQ_HEAD_INITIALIZER(fw_boot_order);
 247
 248 int nb_numa_nodes;
 249 uint64_t node_mem[MAX_NODES];
 250 unsigned long *node_cpumask[MAX_NODES];
 251
 252 uint8_t qemu_uuid[16];
 253
 254 static QEMUBootSetHandler *boot_set_handler;
 255 static void *boot_set_opaque;
 256
 257 static NotifierList exit_notifiers =
 258     NOTIFIER_LIST_INITIALIZER(exit_notifiers);
 259
 260 static NotifierList machine_init_done_notifiers =
 261     NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
 262
 263 static int tcg_allowed = 1;
 264 int kvm_allowed = 0;
 265 int xen_allowed = 0;
 266 uint32_t xen_domid;
 267 enum xen_mode xen_mode = XEN_EMULATE;
 268 static int tcg_tb_size;
 269
 270 static int default_serial = 1;
 271 static int default_parallel = 1;
 272 static int default_virtcon = 1;
 273 static int default_monitor = 1;
 274 static int default_floppy = 1;
 275 static int default_cdrom = 1;
 276 static int default_sdcard = 1;
 277 static int default_vga = 1;
 278
 279 static struct {
 280     const char *driver;
 281     int *flag;
 282 } default_list[] = {
 283     { .driver = "isa-serial",           .flag = &default_serial    },
 284     { .driver = "isa-parallel",         .flag = &default_parallel  },
 285     { .driver = "isa-fdc",              .flag = &default_floppy    },
 286     { .driver = "ide-cd",               .flag = &default_cdrom     },
 287     { .driver = "ide-hd",               .flag = &default_cdrom     },
 288     { .driver = "ide-drive",            .flag = &default_cdrom     },
 289     { .driver = "scsi-cd",              .flag = &default_cdrom     },
 290     { .driver = "virtio-serial-pci",    .flag = &default_virtcon   },
 291     { .driver = "virtio-serial-s390",   .flag = &default_virtcon   },
 292     { .driver = "virtio-serial",        .flag = &default_virtcon   },
 293     { .driver = "VGA",                  .flag = &default_vga       },
 294     { .driver = "isa-vga",              .flag = &default_vga       },
 295     { .driver = "cirrus-vga",           .flag = &default_vga       },
 296     { .driver = "isa-cirrus-vga",       .flag = &default_vga       },
 297     { .driver = "vmware-svga",          .flag = &default_vga       },
 298     { .driver = "qxl-vga",              .flag = &default_vga       },
 299 };
 300
 301 const char *qemu_get_vm_name(void)
 302 {
 303     return qemu_name;
 304 }
 305
 306 static void res_free(void)
 307 {
 308     if (boot_splash_filedata != NULL) {
 309         g_free(boot_splash_filedata);
 310         boot_splash_filedata = NULL;
 311     }
 312 }
 313
 314 static int default_driver_check(QemuOpts *opts, void *opaque)
 315 {
 316     const char *driver = qemu_opt_get(opts, "driver");
 317     int i;
 318
 319     if (!driver)
 320         return 0;
 321     for (i = 0; i < ARRAY_SIZE(default_list); i++) {
 322         if (strcmp(default_list[i].driver, driver) != 0)
 323             continue;
 324         *(default_list[i].flag) = 0;
 325     }
 326     return 0;
 327 }
 328
 329 /***********************************************************/
 330 /* QEMU state */
 331
 332 static RunState current_run_state = RUN_STATE_PRELAUNCH;
 333
 334 typedef struct {
 335     RunState from;
 336     RunState to;
 337 } RunStateTransition;
 338
 339 static const RunStateTransition runstate_transitions_def[] = {
 340     /*     from      ->     to      */
 341     { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
 342
 343     { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
 344     { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
 345
 346     { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
 347     { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
 348
 349     { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
 350     { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
 351
 352     { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
 353     { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
 354
 355     { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
 356     { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
 357
 358     { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
 359     { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
 360     { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
 361
 362     { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
 363     { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
 364
 365     { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
 366
 367     { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
 368     { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
 369     { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
 370     { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
 371     { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
 372     { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
 373     { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
 374     { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
 375     { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
 376
 377     { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
 378
 379     { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
 380     { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
 381
 382     { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
 383     { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
 384     { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
 385     { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
 386
 387     { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
 388     { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
 389
 390     { RUN_STATE_MAX, RUN_STATE_MAX },
 391 };
 392
 393 static bool runstate_valid_transitions[RUN_STATE_MAX][RUN_STATE_MAX];
 394
 395 bool runstate_check(RunState state)
 396 {
 397     return current_run_state == state;
 398 }
 399
 400 void runstate_init(void)
 401 {
 402     const RunStateTransition *p;
 403
 404     memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
 405
 406     for (p = &runstate_transitions_def[0]; p->from != RUN_STATE_MAX; p++) {
 407         runstate_valid_transitions[p->from][p->to] = true;
 408     }
 409 }
 410
 411 /* This function will abort() on invalid state transitions */
 412 void runstate_set(RunState new_state)
 413 {
 414     assert(new_state < RUN_STATE_MAX);
 415
 416     if (!runstate_valid_transitions[current_run_state][new_state]) {
 417         fprintf(stderr, "ERROR: invalid runstate transition: '%s' -> '%s'\n",
 418                 RunState_lookup[current_run_state],
 419                 RunState_lookup[new_state]);
 420         abort();
 421     }
 422
 423     current_run_state = new_state;
 424 }
 425
 426 int runstate_is_running(void)
 427 {
 428     return runstate_check(RUN_STATE_RUNNING);
 429 }
 430
 431 StatusInfo *qmp_query_status(Error **errp)
 432 {
 433     StatusInfo *info = g_malloc0(sizeof(*info));
 434
 435     info->running = runstate_is_running();
 436     info->singlestep = singlestep;
 437     info->status = current_run_state;
 438
 439     return info;
 440 }
 441
 442 /***********************************************************/
 443 /* real time host monotonic timer */
 444
 445 /***********************************************************/
 446 /* host time/date access */
 447 void qemu_get_timedate(struct tm *tm, int offset)
 448 {
 449     time_t ti;
 450     struct tm *ret;
 451
 452     time(&ti);
 453     ti += offset;
 454     if (rtc_date_offset == -1) {
 455         if (rtc_utc)
 456             ret = gmtime(&ti);
 457         else
 458             ret = localtime(&ti);
 459     } else {
 460         ti -= rtc_date_offset;
 461         ret = gmtime(&ti);
 462     }
 463
 464     memcpy(tm, ret, sizeof(struct tm));
 465 }
 466
 467 int qemu_timedate_diff(struct tm *tm)
 468 {
 469     time_t seconds;
 470
 471     if (rtc_date_offset == -1)
 472         if (rtc_utc)
 473             seconds = mktimegm(tm);
 474         else {
 475             struct tm tmp = *tm;
 476             tmp.tm_isdst = -1; /* use timezone to figure it out */
 477             seconds = mktime(&tmp);
 478         }
 479     else
 480         seconds = mktimegm(tm) + rtc_date_offset;
 481
 482     return seconds - time(NULL);
 483 }
 484
 485 void rtc_change_mon_event(struct tm *tm)
 486 {
 487     QObject *data;
 488
 489     data = qobject_from_jsonf("{ 'offset': %d }", qemu_timedate_diff(tm));
 490     monitor_protocol_event(QEVENT_RTC_CHANGE, data);
 491     qobject_decref(data);
 492 }
 493
 494 static void configure_rtc_date_offset(const char *startdate, int legacy)
 495 {
 496     time_t rtc_start_date;
 497     struct tm tm;
 498
 499     if (!strcmp(startdate, "now") && legacy) {
 500         rtc_date_offset = -1;
 501     } else {
 502         if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
 503                    &tm.tm_year,
 504                    &tm.tm_mon,
 505                    &tm.tm_mday,
 506                    &tm.tm_hour,
 507                    &tm.tm_min,
 508                    &tm.tm_sec) == 6) {
 509             /* OK */
 510         } else if (sscanf(startdate, "%d-%d-%d",
 511                           &tm.tm_year,
 512                           &tm.tm_mon,
 513                           &tm.tm_mday) == 3) {
 514             tm.tm_hour = 0;
 515             tm.tm_min = 0;
 516             tm.tm_sec = 0;
 517         } else {
 518             goto date_fail;
 519         }
 520         tm.tm_year -= 1900;
 521         tm.tm_mon--;
 522         rtc_start_date = mktimegm(&tm);
 523         if (rtc_start_date == -1) {
 524         date_fail:
 525             fprintf(stderr, "Invalid date format. Valid formats are:\n"
 526                             "'2006-06-17T16:01:21' or '2006-06-17'\n");
 527             exit(1);
 528         }
 529         rtc_date_offset = time(NULL) - rtc_start_date;
 530     }
 531 }
 532
 533 static void configure_rtc(QemuOpts *opts)
 534 {
 535     const char *value;
 536
 537     value = qemu_opt_get(opts, "base");
 538     if (value) {
 539         if (!strcmp(value, "utc")) {
 540             rtc_utc = 1;
 541         } else if (!strcmp(value, "localtime")) {
 542             rtc_utc = 0;
 543         } else {
 544             configure_rtc_date_offset(value, 0);
 545         }
 546     }
 547     value = qemu_opt_get(opts, "clock");
 548     if (value) {
 549         if (!strcmp(value, "host")) {
 550             rtc_clock = host_clock;
 551         } else if (!strcmp(value, "rt")) {
 552             rtc_clock = rt_clock;
 553         } else if (!strcmp(value, "vm")) {
 554             rtc_clock = vm_clock;
 555         } else {
 556             fprintf(stderr, "qemu: invalid option value '%s'\n", value);
 557             exit(1);
 558         }
 559     }
 560     value = qemu_opt_get(opts, "driftfix");
 561     if (value) {
 562         if (!strcmp(value, "slew")) {
 563             static GlobalProperty slew_lost_ticks[] = {
 564                 {
 565                     .driver   = "mc146818rtc",
 566                     .property = "lost_tick_policy",
 567                     .value    = "slew",
 568                 },
 569                 { /* end of list */ }
 570             };
 571
 572             qdev_prop_register_global_list(slew_lost_ticks);
 573         } else if (!strcmp(value, "none")) {
 574             /* discard is default */
 575         } else {
 576             fprintf(stderr, "qemu: invalid option value '%s'\n", value);
 577             exit(1);
 578         }
 579     }
 580 }
 581
 582 /***********************************************************/
 583 /* Bluetooth support */
 584 static int nb_hcis;
 585 static int cur_hci;
 586 static struct HCIInfo *hci_table[MAX_NICS];
 587
 588 static struct bt_vlan_s {
 589     struct bt_scatternet_s net;
 590     int id;
 591     struct bt_vlan_s *next;
 592 } *first_bt_vlan;
 593
 594 /* find or alloc a new bluetooth "VLAN" */
 595 static struct bt_scatternet_s *qemu_find_bt_vlan(int id)
 596 {
 597     struct bt_vlan_s **pvlan, *vlan;
 598     for (vlan = first_bt_vlan; vlan != NULL; vlan = vlan->next) {
 599         if (vlan->id == id)
 600             return &vlan->net;
 601     }
 602     vlan = g_malloc0(sizeof(struct bt_vlan_s));
 603     vlan->id = id;
 604     pvlan = &first_bt_vlan;
 605     while (*pvlan != NULL)
 606         pvlan = &(*pvlan)->next;
 607     *pvlan = vlan;
 608     return &vlan->net;
 609 }
 610
 611 static void null_hci_send(struct HCIInfo *hci, const uint8_t *data, int len)
 612 {
 613 }
 614
 615 static int null_hci_addr_set(struct HCIInfo *hci, const uint8_t *bd_addr)
 616 {
 617     return -ENOTSUP;
 618 }
 619
 620 static struct HCIInfo null_hci = {
 621     .cmd_send = null_hci_send,
 622     .sco_send = null_hci_send,
 623     .acl_send = null_hci_send,
 624     .bdaddr_set = null_hci_addr_set,
 625 };
 626
 627 struct HCIInfo *qemu_next_hci(void)
 628 {
 629     if (cur_hci == nb_hcis)
 630         return &null_hci;
 631
 632     return hci_table[cur_hci++];
 633 }
 634
 635 static struct HCIInfo *hci_init(const char *str)
 636 {
 637     char *endp;
 638     struct bt_scatternet_s *vlan = 0;
 639
 640     if (!strcmp(str, "null"))
 641         /* null */
 642         return &null_hci;
 643     else if (!strncmp(str, "host", 4) && (str[4] == '\0' || str[4] == ':'))
 644         /* host[:hciN] */
 645         return bt_host_hci(str[4] ? str + 5 : "hci0");
 646     else if (!strncmp(str, "hci", 3)) {
 647         /* hci[,vlan=n] */
 648         if (str[3]) {
 649             if (!strncmp(str + 3, ",vlan=", 6)) {
 650                 vlan = qemu_find_bt_vlan(strtol(str + 9, &endp, 0));
 651                 if (*endp)
 652                     vlan = 0;
 653             }
 654         } else
 655             vlan = qemu_find_bt_vlan(0);
 656         if (vlan)
 657            return bt_new_hci(vlan);
 658     }
 659
 660     fprintf(stderr, "qemu: Unknown bluetooth HCI `%s'.\n", str);
 661
 662     return 0;
 663 }
 664
 665 static int bt_hci_parse(const char *str)
 666 {
 667     struct HCIInfo *hci;
 668     bdaddr_t bdaddr;
 669
 670     if (nb_hcis >= MAX_NICS) {
 671         fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
 672         return -1;
 673     }
 674
 675     hci = hci_init(str);
 676     if (!hci)
 677         return -1;
 678
 679     bdaddr.b[0] = 0x52;
 680     bdaddr.b[1] = 0x54;
 681     bdaddr.b[2] = 0x00;
 682     bdaddr.b[3] = 0x12;
 683     bdaddr.b[4] = 0x34;
 684     bdaddr.b[5] = 0x56 + nb_hcis;
 685     hci->bdaddr_set(hci, bdaddr.b);
 686
 687     hci_table[nb_hcis++] = hci;
 688
 689     return 0;
 690 }
 691
 692 static void bt_vhci_add(int vlan_id)
 693 {
 694     struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
 695
 696     if (!vlan->slave)
 697         fprintf(stderr, "qemu: warning: adding a VHCI to "
 698                         "an empty scatternet %i\n", vlan_id);
 699
 700     bt_vhci_init(bt_new_hci(vlan));
 701 }
 702
 703 static struct bt_device_s *bt_device_add(const char *opt)
 704 {
 705     struct bt_scatternet_s *vlan;
 706     int vlan_id = 0;
 707     char *endp = strstr(opt, ",vlan=");
 708     int len = (endp ? endp - opt : strlen(opt)) + 1;
 709     char devname[10];
 710
 711     pstrcpy(devname, MIN(sizeof(devname), len), opt);
 712
 713     if (endp) {
 714         vlan_id = strtol(endp + 6, &endp, 0);
 715         if (*endp) {
 716             fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
 717             return 0;
 718         }
 719     }
 720
 721     vlan = qemu_find_bt_vlan(vlan_id);
 722
 723     if (!vlan->slave)
 724         fprintf(stderr, "qemu: warning: adding a slave device to "
 725                         "an empty scatternet %i\n", vlan_id);
 726
 727     if (!strcmp(devname, "keyboard"))
 728         return bt_keyboard_init(vlan);
 729
 730     fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
 731     return 0;
 732 }
 733
 734 static int bt_parse(const char *opt)
 735 {
 736     const char *endp, *p;
 737     int vlan;
 738
 739     if (strstart(opt, "hci", &endp)) {
 740         if (!*endp || *endp == ',') {
 741             if (*endp)
 742                 if (!strstart(endp, ",vlan=", 0))
 743                     opt = endp + 1;
 744
 745             return bt_hci_parse(opt);
 746        }
 747     } else if (strstart(opt, "vhci", &endp)) {
 748         if (!*endp || *endp == ',') {
 749             if (*endp) {
 750                 if (strstart(endp, ",vlan=", &p)) {
 751                     vlan = strtol(p, (char **) &endp, 0);
 752                     if (*endp) {
 753                         fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
 754                         return 1;
 755                     }
 756                 } else {
 757                     fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1);
 758                     return 1;
 759                 }
 760             } else
 761                 vlan = 0;
 762
 763             bt_vhci_add(vlan);
 764             return 0;
 765         }
 766     } else if (strstart(opt, "device:", &endp))
 767         return !bt_device_add(endp);
 768
 769     fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
 770     return 1;
 771 }
 772
 773 static int parse_sandbox(QemuOpts *opts, void *opaque)
 774 {
 775     /* FIXME: change this to true for 1.3 */
 776     if (qemu_opt_get_bool(opts, "enable", false)) {
 777 #ifdef CONFIG_SECCOMP
 778         if (seccomp_start() < 0) {
 779             qerror_report(ERROR_CLASS_GENERIC_ERROR,
 780                           "failed to install seccomp syscall filter in the kernel");
 781             return -1;
 782         }
 783 #else
 784         qerror_report(ERROR_CLASS_GENERIC_ERROR,
 785                       "sandboxing request but seccomp is not compiled into this build");
 786         return -1;
 787 #endif
 788     }
 789
 790     return 0;
 791 }
 792
 793 #ifndef _WIN32
 794 static int parse_add_fd(QemuOpts *opts, void *opaque)
 795 {
 796     int fd, dupfd, flags;
 797     int64_t fdset_id;
 798     const char *fd_opaque = NULL;
 799
 800     fd = qemu_opt_get_number(opts, "fd", -1);
 801     fdset_id = qemu_opt_get_number(opts, "set", -1);
 802     fd_opaque = qemu_opt_get(opts, "opaque");
 803
 804     if (fd < 0) {
 805         qerror_report(ERROR_CLASS_GENERIC_ERROR,
 806                       "fd option is required and must be non-negative");
 807         return -1;
 808     }
 809
 810     if (fd <= STDERR_FILENO) {
 811         qerror_report(ERROR_CLASS_GENERIC_ERROR,
 812                       "fd cannot be a standard I/O stream");
 813         return -1;
 814     }
 815
 816     /*
 817      * All fds inherited across exec() necessarily have FD_CLOEXEC
 818      * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
 819      */
 820     flags = fcntl(fd, F_GETFD);
 821     if (flags == -1 || (flags & FD_CLOEXEC)) {
 822         qerror_report(ERROR_CLASS_GENERIC_ERROR,
 823                       "fd is not valid or already in use");
 824         return -1;
 825     }
 826
 827     if (fdset_id < 0) {
 828         qerror_report(ERROR_CLASS_GENERIC_ERROR,
 829                       "set option is required and must be non-negative");
 830         return -1;
 831     }
 832
 833 #ifdef F_DUPFD_CLOEXEC
 834     dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
 835 #else
 836     dupfd = dup(fd);
 837     if (dupfd != -1) {
 838         qemu_set_cloexec(dupfd);
 839     }
 840 #endif
 841     if (dupfd == -1) {
 842         qerror_report(ERROR_CLASS_GENERIC_ERROR,
 843                       "Error duplicating fd: %s", strerror(errno));
 844         return -1;
 845     }
 846
 847     /* add the duplicate fd, and optionally the opaque string, to the fd set */
 848     monitor_fdset_add_fd(dupfd, true, fdset_id, fd_opaque ? true : false,
 849                          fd_opaque, NULL);
 850
 851     return 0;
 852 }
 853
 854 static int cleanup_add_fd(QemuOpts *opts, void *opaque)
 855 {
 856     int fd;
 857
 858     fd = qemu_opt_get_number(opts, "fd", -1);
 859     close(fd);
 860
 861     return 0;
 862 }
 863 #endif
 864
 865 /***********************************************************/
 866 /* QEMU Block devices */
 867
 868 #define HD_OPTS "media=disk"
 869 #define CDROM_OPTS "media=cdrom"
 870 #define FD_OPTS ""
 871 #define PFLASH_OPTS ""
 872 #define MTD_OPTS ""
 873 #define SD_OPTS ""
 874
 875 static int drive_init_func(QemuOpts *opts, void *opaque)
 876 {
 877     int *use_scsi = opaque;
 878
 879     return drive_init(opts, *use_scsi) == NULL;
 880 }
 881
 882 static int drive_enable_snapshot(QemuOpts *opts, void *opaque)
 883 {
 884     if (NULL == qemu_opt_get(opts, "snapshot")) {
 885         qemu_opt_set(opts, "snapshot", "on");
 886     }
 887     return 0;
 888 }
 889
 890 static void default_drive(int enable, int snapshot, int use_scsi,
 891                           BlockInterfaceType type, int index,
 892                           const char *optstr)
 893 {
 894     QemuOpts *opts;
 895
 896     if (type == IF_DEFAULT) {
 897         type = use_scsi ? IF_SCSI : IF_IDE;
 898     }
 899
 900     if (!enable || drive_get_by_index(type, index)) {
 901         return;
 902     }
 903
 904     opts = drive_add(type, index, NULL, optstr);
 905     if (snapshot) {
 906         drive_enable_snapshot(opts, NULL);
 907     }
 908     if (!drive_init(opts, use_scsi)) {
 909         exit(1);
 910     }
 911 }
 912
 913 void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
 914 {
 915     boot_set_handler = func;
 916     boot_set_opaque = opaque;
 917 }
 918
 919 int qemu_boot_set(const char *boot_devices)
 920 {
 921     if (!boot_set_handler) {
 922         return -EINVAL;
 923     }
 924     return boot_set_handler(boot_set_opaque, boot_devices);
 925 }
 926
 927 static void validate_bootdevices(char *devices)
 928 {
 929     /* We just do some generic consistency checks */
 930     const char *p;
 931     int bitmap = 0;
 932
 933     for (p = devices; *p != '\0'; p++) {
 934         /* Allowed boot devices are:
 935          * a-b: floppy disk drives
 936          * c-f: IDE disk drives
 937          * g-m: machine implementation dependent drives
 938          * n-p: network devices
 939          * It's up to each machine implementation to check if the given boot
 940          * devices match the actual hardware implementation and firmware
 941          * features.
 942          */
 943         if (*p < 'a' || *p > 'p') {
 944             fprintf(stderr, "Invalid boot device '%c'\n", *p);
 945             exit(1);
 946         }
 947         if (bitmap & (1 << (*p - 'a'))) {
 948             fprintf(stderr, "Boot device '%c' was given twice\n", *p);
 949             exit(1);
 950         }
 951         bitmap |= 1 << (*p - 'a');
 952     }
 953 }
 954
 955 static void restore_boot_devices(void *opaque)
 956 {
 957     char *standard_boot_devices = opaque;
 958     static int first = 1;
 959
 960     /* Restore boot order and remove ourselves after the first boot */
 961     if (first) {
 962         first = 0;
 963         return;
 964     }
 965
 966     qemu_boot_set(standard_boot_devices);
 967
 968     qemu_unregister_reset(restore_boot_devices, standard_boot_devices);
 969     g_free(standard_boot_devices);
 970 }
 971
 972 void add_boot_device_path(int32_t bootindex, DeviceState *dev,
 973                           const char *suffix)
 974 {
 975     FWBootEntry *node, *i;
 976
 977     if (bootindex < 0) {
 978         return;
 979     }
 980
 981     assert(dev != NULL || suffix != NULL);
 982
 983     node = g_malloc0(sizeof(FWBootEntry));
 984     node->bootindex = bootindex;
 985     node->suffix = suffix ? g_strdup(suffix) : NULL;
 986     node->dev = dev;
 987
 988     QTAILQ_FOREACH(i, &fw_boot_order, link) {
 989         if (i->bootindex == bootindex) {
 990             fprintf(stderr, "Two devices with same boot index %d\n", bootindex);
 991             exit(1);
 992         } else if (i->bootindex < bootindex) {
 993             continue;
 994         }
 995         QTAILQ_INSERT_BEFORE(i, node, link);
 996         return;
 997     }
 998     QTAILQ_INSERT_TAIL(&fw_boot_order, node, link);
 999 }
1000
1001 /*
1002  * This function returns null terminated string that consist of new line
1003  * separated device paths.
1004  *
1005  * memory pointed by "size" is assigned total length of the array in bytes
1006  *
1007  */
1008 char *get_boot_devices_list(uint32_t *size)
1009 {
1010     FWBootEntry *i;
1011     uint32_t total = 0;
1012     char *list = NULL;
1013
1014     QTAILQ_FOREACH(i, &fw_boot_order, link) {
1015         char *devpath = NULL, *bootpath;
1016         int len;
1017
1018         if (i->dev) {
1019             devpath = qdev_get_fw_dev_path(i->dev);
1020             assert(devpath);
1021         }
1022
1023         if (i->suffix && devpath) {
1024             size_t bootpathlen = strlen(devpath) + strlen(i->suffix) + 1;
1025
1026             bootpath = g_malloc(bootpathlen);
1027             snprintf(bootpath, bootpathlen, "%s%s", devpath, i->suffix);
1028             g_free(devpath);
1029         } else if (devpath) {
1030             bootpath = devpath;
1031         } else {
1032             assert(i->suffix);
1033             bootpath = g_strdup(i->suffix);
1034         }
1035
1036         if (total) {
1037             list[total-1] = '\n';
1038         }
1039         len = strlen(bootpath) + 1;
1040         list = g_realloc(list, total + len);
1041         memcpy(&list[total], bootpath, len);
1042         total += len;
1043         g_free(bootpath);
1044     }
1045
1046     *size = total;
1047
1048     return list;
1049 }
1050
1051 static void numa_add(const char *optarg)
1052 {
1053     char option[128];
1054     char *endptr;
1055     unsigned long long value, endvalue;
1056     int nodenr;
1057
1058     value = endvalue = 0ULL;
1059
1060     optarg = get_opt_name(option, 128, optarg, ',') + 1;
1061     if (!strcmp(option, "node")) {
1062         if (get_param_value(option, 128, "nodeid", optarg) == 0) {
1063             nodenr = nb_numa_nodes;
1064         } else {
1065             nodenr = strtoull(option, NULL, 10);
1066         }
1067
1068         if (get_param_value(option, 128, "mem", optarg) == 0) {
1069             node_mem[nodenr] = 0;
1070         } else {
1071             int64_t sval;
1072             sval = strtosz(option, &endptr);
1073             if (sval < 0 || *endptr) {
1074                 fprintf(stderr, "qemu: invalid numa mem size: %s\n", optarg);
1075                 exit(1);
1076             }
1077             node_mem[nodenr] = sval;
1078         }
1079         if (get_param_value(option, 128, "cpus", optarg) != 0) {
1080             value = strtoull(option, &endptr, 10);
1081             if (*endptr == '-') {
1082                 endvalue = strtoull(endptr+1, &endptr, 10);
1083             } else {
1084                 endvalue = value;
1085             }
1086
1087             if (!(endvalue < MAX_CPUMASK_BITS)) {
1088                 endvalue = MAX_CPUMASK_BITS - 1;
1089                 fprintf(stderr,
1090                     "A max of %d CPUs are supported in a guest\n",
1091                      MAX_CPUMASK_BITS);
1092             }
1093
1094             bitmap_set(node_cpumask[nodenr], value, endvalue-value+1);
1095         }
1096         nb_numa_nodes++;
1097     }
1098 }
1099
1100 static void smp_parse(const char *optarg)
1101 {
1102     int smp, sockets = 0, threads = 0, cores = 0;
1103     char *endptr;
1104     char option[128];
1105
1106     smp = strtoul(optarg, &endptr, 10);
1107     if (endptr != optarg) {
1108         if (*endptr == ',') {
1109             endptr++;
1110         }
1111     }
1112     if (get_param_value(option, 128, "sockets", endptr) != 0)
1113         sockets = strtoull(option, NULL, 10);
1114     if (get_param_value(option, 128, "cores", endptr) != 0)
1115         cores = strtoull(option, NULL, 10);
1116     if (get_param_value(option, 128, "threads", endptr) != 0)
1117         threads = strtoull(option, NULL, 10);
1118     if (get_param_value(option, 128, "maxcpus", endptr) != 0)
1119         max_cpus = strtoull(option, NULL, 10);
1120
1121     /* compute missing values, prefer sockets over cores over threads */
1122     if (smp == 0 || sockets == 0) {
1123         sockets = sockets > 0 ? sockets : 1;
1124         cores = cores > 0 ? cores : 1;
1125         threads = threads > 0 ? threads : 1;
1126         if (smp == 0) {
1127             smp = cores * threads * sockets;
1128         }
1129     } else {
1130         if (cores == 0) {
1131             threads = threads > 0 ? threads : 1;
1132             cores = smp / (sockets * threads);
1133         } else {
1134             threads = smp / (cores * sockets);
1135         }
1136     }
1137     smp_cpus = smp;
1138     smp_cores = cores > 0 ? cores : 1;
1139     smp_threads = threads > 0 ? threads : 1;
1140     if (max_cpus == 0)
1141         max_cpus = smp_cpus;
1142 }
1143
1144 /***********************************************************/
1145 /* USB devices */
1146
1147 static int usb_device_add(const char *devname)
1148 {
1149     const char *p;
1150     USBDevice *dev = NULL;
1151
1152     if (!usb_enabled)
1153         return -1;
1154
1155     /* drivers with .usbdevice_name entry in USBDeviceInfo */
1156     dev = usbdevice_create(devname);
1157     if (dev)
1158         goto done;
1159
1160     /* the other ones */
1161 #ifndef CONFIG_LINUX
1162     /* only the linux version is qdev-ified, usb-bsd still needs this */
1163     if (strstart(devname, "host:", &p)) {
1164         dev = usb_host_device_open(usb_bus_find(-1), p);
1165     } else
1166 #endif
1167     if (!strcmp(devname, "bt") || strstart(devname, "bt:", &p)) {
1168         dev = usb_bt_init(usb_bus_find(-1),
1169                           devname[2] ? hci_init(p)
1170                                      : bt_new_hci(qemu_find_bt_vlan(0)));
1171     } else {
1172         return -1;
1173     }
1174     if (!dev)
1175         return -1;
1176
1177 done:
1178     return 0;
1179 }
1180
1181 static int usb_device_del(const char *devname)
1182 {
1183     int bus_num, addr;
1184     const char *p;
1185
1186     if (strstart(devname, "host:", &p))
1187         return usb_host_device_close(p);
1188
1189     if (!usb_enabled)
1190         return -1;
1191
1192     p = strchr(devname, '.');
1193     if (!p)
1194         return -1;
1195     bus_num = strtoul(devname, NULL, 0);
1196     addr = strtoul(p + 1, NULL, 0);
1197
1198     return usb_device_delete_addr(bus_num, addr);
1199 }
1200
1201 static int usb_parse(const char *cmdline)
1202 {
1203     int r;
1204     r = usb_device_add(cmdline);
1205     if (r < 0) {
1206         fprintf(stderr, "qemu: could not add USB device '%s'\n", cmdline);
1207     }
1208     return r;
1209 }
1210
1211 void do_usb_add(Monitor *mon, const QDict *qdict)
1212 {
1213     const char *devname = qdict_get_str(qdict, "devname");
1214     if (usb_device_add(devname) < 0) {
1215         error_report("could not add USB device '%s'", devname);
1216     }
1217 }
1218
1219 void do_usb_del(Monitor *mon, const QDict *qdict)
1220 {
1221     const char *devname = qdict_get_str(qdict, "devname");
1222     if (usb_device_del(devname) < 0) {
1223         error_report("could not delete USB device '%s'", devname);
1224     }
1225 }
1226
1227 /***********************************************************/
1228 /* PCMCIA/Cardbus */
1229
1230 static struct pcmcia_socket_entry_s {
1231     PCMCIASocket *socket;
1232     struct pcmcia_socket_entry_s *next;
1233 } *pcmcia_sockets = 0;
1234
1235 void pcmcia_socket_register(PCMCIASocket *socket)
1236 {
1237     struct pcmcia_socket_entry_s *entry;
1238
1239     entry = g_malloc(sizeof(struct pcmcia_socket_entry_s));
1240     entry->socket = socket;
1241     entry->next = pcmcia_sockets;
1242     pcmcia_sockets = entry;
1243 }
1244
1245 void pcmcia_socket_unregister(PCMCIASocket *socket)
1246 {
1247     struct pcmcia_socket_entry_s *entry, **ptr;
1248
1249     ptr = &pcmcia_sockets;
1250     for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
1251         if (entry->socket == socket) {
1252             *ptr = entry->next;
1253             g_free(entry);
1254         }
1255 }
1256
1257 void pcmcia_info(Monitor *mon)
1258 {
1259     struct pcmcia_socket_entry_s *iter;
1260
1261     if (!pcmcia_sockets)
1262         monitor_printf(mon, "No PCMCIA sockets\n");
1263
1264     for (iter = pcmcia_sockets; iter; iter = iter->next)
1265         monitor_printf(mon, "%s: %s\n", iter->socket->slot_string,
1266                        iter->socket->attached ? iter->socket->card_string :
1267                        "Empty");
1268 }
1269
1270 /***********************************************************/
1271 /* machine registration */
1272
1273 static QEMUMachine *first_machine = NULL;
1274 QEMUMachine *current_machine = NULL;
1275
1276 int qemu_register_machine(QEMUMachine *m)
1277 {
1278     QEMUMachine **pm;
1279     pm = &first_machine;
1280     while (*pm != NULL)
1281         pm = &(*pm)->next;
1282     m->next = NULL;
1283     *pm = m;
1284     return 0;
1285 }
1286
1287 static QEMUMachine *find_machine(const char *name)
1288 {
1289     QEMUMachine *m;
1290
1291     for(m = first_machine; m != NULL; m = m->next) {
1292         if (!strcmp(m->name, name))
1293             return m;
1294         if (m->alias && !strcmp(m->alias, name))
1295             return m;
1296     }
1297     return NULL;
1298 }
1299
1300 QEMUMachine *find_default_machine(void)
1301 {
1302     QEMUMachine *m;
1303
1304     for(m = first_machine; m != NULL; m = m->next) {
1305         if (m->is_default) {
1306             return m;
1307         }
1308     }
1309     return NULL;
1310 }
1311
1312 MachineInfoList *qmp_query_machines(Error **errp)
1313 {
1314     MachineInfoList *mach_list = NULL;
1315     QEMUMachine *m;
1316
1317     for (m = first_machine; m; m = m->next) {
1318         MachineInfoList *entry;
1319         MachineInfo *info;
1320
1321         info = g_malloc0(sizeof(*info));
1322         if (m->is_default) {
1323             info->has_is_default = true;
1324             info->is_default = true;
1325         }
1326
1327         if (m->alias) {
1328             info->has_alias = true;
1329             info->alias = g_strdup(m->alias);
1330         }
1331
1332         info->name = g_strdup(m->name);
1333
1334         entry = g_malloc0(sizeof(*entry));
1335         entry->value = info;
1336         entry->next = mach_list;
1337         mach_list = entry;
1338     }
1339
1340     return mach_list;
1341 }
1342
1343 /***********************************************************/
1344 /* main execution loop */
1345
1346 static void gui_update(void *opaque)
1347 {
1348     uint64_t interval = GUI_REFRESH_INTERVAL;
1349     DisplayState *ds = opaque;
1350     DisplayChangeListener *dcl = ds->listeners;
1351
1352     dpy_refresh(ds);
1353
1354     while (dcl != NULL) {
1355         if (dcl->gui_timer_interval &&
1356             dcl->gui_timer_interval < interval)
1357             interval = dcl->gui_timer_interval;
1358         dcl = dcl->next;
1359     }
1360     qemu_mod_timer(ds->gui_timer, interval + qemu_get_clock_ms(rt_clock));
1361 }
1362
1363 struct vm_change_state_entry {
1364     VMChangeStateHandler *cb;
1365     void *opaque;
1366     QLIST_ENTRY (vm_change_state_entry) entries;
1367 };
1368
1369 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1370
1371 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1372                                                      void *opaque)
1373 {
1374     VMChangeStateEntry *e;
1375
1376     e = g_malloc0(sizeof (*e));
1377
1378     e->cb = cb;
1379     e->opaque = opaque;
1380     QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1381     return e;
1382 }
1383
1384 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1385 {
1386     QLIST_REMOVE (e, entries);
1387     g_free (e);
1388 }
1389
1390 void vm_state_notify(int running, RunState state)
1391 {
1392     VMChangeStateEntry *e;
1393
1394     trace_vm_state_notify(running, state);
1395
1396     for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
1397         e->cb(e->opaque, running, state);
1398     }
1399 }
1400
1401 void vm_start(void)
1402 {
1403     if (!runstate_is_running()) {
1404         cpu_enable_ticks();
1405         runstate_set(RUN_STATE_RUNNING);
1406         vm_state_notify(1, RUN_STATE_RUNNING);
1407         resume_all_vcpus();
1408         monitor_protocol_event(QEVENT_RESUME, NULL);
1409     }
1410 }
1411
1412 /* reset/shutdown handler */
1413
1414 typedef struct QEMUResetEntry {
1415     QTAILQ_ENTRY(QEMUResetEntry) entry;
1416     QEMUResetHandler *func;
1417     void *opaque;
1418 } QEMUResetEntry;
1419
1420 static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
1421     QTAILQ_HEAD_INITIALIZER(reset_handlers);
1422 static int reset_requested;
1423 static int shutdown_requested, shutdown_signal = -1;
1424 static pid_t shutdown_pid;
1425 static int powerdown_requested;
1426 static int debug_requested;
1427 static int suspend_requested;
1428 static int wakeup_requested;
1429 static NotifierList powerdown_notifiers =
1430     NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1431 static NotifierList suspend_notifiers =
1432     NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1433 static NotifierList wakeup_notifiers =
1434     NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1435 static uint32_t wakeup_reason_mask = ~0;
1436 static RunState vmstop_requested = RUN_STATE_MAX;
1437
1438 int qemu_shutdown_requested_get(void)
1439 {
1440     return shutdown_requested;
1441 }
1442
1443 int qemu_reset_requested_get(void)
1444 {
1445     return reset_requested;
1446 }
1447
1448 int qemu_shutdown_requested(void)
1449 {
1450     int r = shutdown_requested;
1451     shutdown_requested = 0;
1452     return r;
1453 }
1454
1455 void qemu_kill_report(void)
1456 {
1457     if (!qtest_enabled() && shutdown_signal != -1) {
1458         fprintf(stderr, "qemu: terminating on signal %d", shutdown_signal);
1459         if (shutdown_pid == 0) {
1460             /* This happens for eg ^C at the terminal, so it's worth
1461              * avoiding printing an odd message in that case.
1462              */
1463             fputc('\n', stderr);
1464         } else {
1465             fprintf(stderr, " from pid " FMT_pid "\n", shutdown_pid);
1466         }
1467         shutdown_signal = -1;
1468     }
1469 }
1470
1471 int qemu_reset_requested(void)
1472 {
1473     int r = reset_requested;
1474     reset_requested = 0;
1475     return r;
1476 }
1477
1478 static int qemu_suspend_requested(void)
1479 {
1480     int r = suspend_requested;
1481     suspend_requested = 0;
1482     return r;
1483 }
1484
1485 static int qemu_wakeup_requested(void)
1486 {
1487     int r = wakeup_requested;
1488     wakeup_requested = 0;
1489     return r;
1490 }
1491
1492 int qemu_powerdown_requested(void)
1493 {
1494     int r = powerdown_requested;
1495     powerdown_requested = 0;
1496     return r;
1497 }
1498
1499 static int qemu_debug_requested(void)
1500 {
1501     int r = debug_requested;
1502     debug_requested = 0;
1503     return r;
1504 }
1505
1506 /* We use RUN_STATE_MAX but any invalid value will do */
1507 static bool qemu_vmstop_requested(RunState *r)
1508 {
1509     if (vmstop_requested < RUN_STATE_MAX) {
1510         *r = vmstop_requested;
1511         vmstop_requested = RUN_STATE_MAX;
1512         return true;
1513     }
1514
1515     return false;
1516 }
1517
1518 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
1519 {
1520     QEMUResetEntry *re = g_malloc0(sizeof(QEMUResetEntry));
1521
1522     re->func = func;
1523     re->opaque = opaque;
1524     QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
1525 }
1526
1527 void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
1528 {
1529     QEMUResetEntry *re;
1530
1531     QTAILQ_FOREACH(re, &reset_handlers, entry) {
1532         if (re->func == func && re->opaque == opaque) {
1533             QTAILQ_REMOVE(&reset_handlers, re, entry);
1534             g_free(re);
1535             return;
1536         }
1537     }
1538 }
1539
1540 void qemu_devices_reset(void)
1541 {
1542     QEMUResetEntry *re, *nre;
1543
1544     /* reset all devices */
1545     QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
1546         re->func(re->opaque);
1547     }
1548 }
1549
1550 void qemu_system_reset(bool report)
1551 {
1552     if (current_machine && current_machine->reset) {
1553         current_machine->reset();
1554     } else {
1555         qemu_devices_reset();
1556     }
1557     if (report) {
1558         monitor_protocol_event(QEVENT_RESET, NULL);
1559     }
1560     cpu_synchronize_all_post_reset();
1561 }
1562
1563 void qemu_system_reset_request(void)
1564 {
1565     if (no_reboot) {
1566         shutdown_requested = 1;
1567     } else {
1568         reset_requested = 1;
1569     }
1570     cpu_stop_current();
1571     qemu_notify_event();
1572 }
1573
1574 static void qemu_system_suspend(void)
1575 {
1576     pause_all_vcpus();
1577     notifier_list_notify(&suspend_notifiers, NULL);
1578     runstate_set(RUN_STATE_SUSPENDED);
1579     monitor_protocol_event(QEVENT_SUSPEND, NULL);
1580 }
1581
1582 void qemu_system_suspend_request(void)
1583 {
1584     if (runstate_check(RUN_STATE_SUSPENDED)) {
1585         return;
1586     }
1587     suspend_requested = 1;
1588     cpu_stop_current();
1589     qemu_notify_event();
1590 }
1591
1592 void qemu_register_suspend_notifier(Notifier *notifier)
1593 {
1594     notifier_list_add(&suspend_notifiers, notifier);
1595 }
1596
1597 void qemu_system_wakeup_request(WakeupReason reason)
1598 {
1599     if (!runstate_check(RUN_STATE_SUSPENDED)) {
1600         return;
1601     }
1602     if (!(wakeup_reason_mask & (1 << reason))) {
1603         return;
1604     }
1605     runstate_set(RUN_STATE_RUNNING);
1606     notifier_list_notify(&wakeup_notifiers, &reason);
1607     wakeup_requested = 1;
1608     qemu_notify_event();
1609 }
1610
1611 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1612 {
1613     if (enabled) {
1614         wakeup_reason_mask |= (1 << reason);
1615     } else {
1616         wakeup_reason_mask &= ~(1 << reason);
1617     }
1618 }
1619
1620 void qemu_register_wakeup_notifier(Notifier *notifier)
1621 {
1622     notifier_list_add(&wakeup_notifiers, notifier);
1623 }
1624
1625 void qemu_system_killed(int signal, pid_t pid)
1626 {
1627     shutdown_signal = signal;
1628     shutdown_pid = pid;
1629     no_shutdown = 0;
1630     qemu_system_shutdown_request();
1631 }
1632
1633 void qemu_system_shutdown_request(void)
1634 {
1635     shutdown_requested = 1;
1636     qemu_notify_event();
1637 }
1638
1639 static void qemu_system_powerdown(void)
1640 {
1641     monitor_protocol_event(QEVENT_POWERDOWN, NULL);
1642     notifier_list_notify(&powerdown_notifiers, NULL);
1643 }
1644
1645 void qemu_system_powerdown_request(void)
1646 {
1647     powerdown_requested = 1;
1648     qemu_notify_event();
1649 }
1650
1651 void qemu_register_powerdown_notifier(Notifier *notifier)
1652 {
1653     notifier_list_add(&powerdown_notifiers, notifier);
1654 }
1655
1656 void qemu_system_debug_request(void)
1657 {
1658     debug_requested = 1;
1659     qemu_notify_event();
1660 }
1661
1662 void qemu_system_vmstop_request(RunState state)
1663 {
1664     vmstop_requested = state;
1665     qemu_notify_event();
1666 }
1667
1668 static bool main_loop_should_exit(void)
1669 {
1670     RunState r;
1671     if (qemu_debug_requested()) {
1672         vm_stop(RUN_STATE_DEBUG);
1673     }
1674     if (qemu_suspend_requested()) {
1675         qemu_system_suspend();
1676     }
1677     if (qemu_shutdown_requested()) {
1678         qemu_kill_report();
1679         monitor_protocol_event(QEVENT_SHUTDOWN, NULL);
1680         if (no_shutdown) {
1681             vm_stop(RUN_STATE_SHUTDOWN);
1682         } else {
1683             return true;
1684         }
1685     }
1686     if (qemu_reset_requested()) {
1687         pause_all_vcpus();
1688         cpu_synchronize_all_states();
1689         qemu_system_reset(VMRESET_REPORT);
1690         resume_all_vcpus();
1691         if (runstate_check(RUN_STATE_INTERNAL_ERROR) ||
1692             runstate_check(RUN_STATE_SHUTDOWN)) {
1693             runstate_set(RUN_STATE_PAUSED);
1694         }
1695     }
1696     if (qemu_wakeup_requested()) {
1697         pause_all_vcpus();
1698         cpu_synchronize_all_states();
1699         qemu_system_reset(VMRESET_SILENT);
1700         resume_all_vcpus();
1701         monitor_protocol_event(QEVENT_WAKEUP, NULL);
1702     }
1703     if (qemu_powerdown_requested()) {
1704         qemu_system_powerdown();
1705     }
1706     if (qemu_vmstop_requested(&r)) {
1707         vm_stop(r);
1708     }
1709     return false;
1710 }
1711
1712 static void main_loop(void)
1713 {
1714     bool nonblocking;
1715     int last_io = 0;
1716 #ifdef CONFIG_PROFILER
1717     int64_t ti;
1718 #endif
1719     do {
1720         nonblocking = !kvm_enabled() && last_io > 0;
1721 #ifdef CONFIG_PROFILER
1722         ti = profile_getclock();
1723 #endif
1724         last_io = main_loop_wait(nonblocking);
1725 #ifdef CONFIG_PROFILER
1726         dev_time += profile_getclock() - ti;
1727 #endif
1728     } while (!main_loop_should_exit());
1729 }
1730
1731 static void version(void)
1732 {
1733     printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
1734 }
1735
1736 static void help(int exitcode)
1737 {
1738     version();
1739     printf("usage: %s [options] [disk_image]\n\n"
1740            "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1741             error_get_progname());
1742
1743 #define QEMU_OPTIONS_GENERATE_HELP
1744 #include "qemu-options-wrapper.h"
1745
1746     printf("\nDuring emulation, the following keys are useful:\n"
1747            "ctrl-alt-f      toggle full screen\n"
1748            "ctrl-alt-n      switch to virtual console 'n'\n"
1749            "ctrl-alt        toggle mouse and keyboard grab\n"
1750            "\n"
1751            "When using -nographic, press 'ctrl-a h' to get some help.\n");
1752
1753     exit(exitcode);
1754 }
1755
1756 #define HAS_ARG 0x0001
1757
1758 typedef struct QEMUOption {
1759     const char *name;
1760     int flags;
1761     int index;
1762     uint32_t arch_mask;
1763 } QEMUOption;
1764
1765 static const QEMUOption qemu_options[] = {
1766     { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1767 #define QEMU_OPTIONS_GENERATE_OPTIONS
1768 #include "qemu-options-wrapper.h"
1769     { NULL },
1770 };
1771
1772 static bool vga_available(void)
1773 {
1774     return object_class_by_name("VGA") || object_class_by_name("isa-vga");
1775 }
1776
1777 static bool cirrus_vga_available(void)
1778 {
1779     return object_class_by_name("cirrus-vga")
1780            || object_class_by_name("isa-cirrus-vga");
1781 }
1782
1783 static bool vmware_vga_available(void)
1784 {
1785     return object_class_by_name("vmware-svga");
1786 }
1787
1788 static bool qxl_vga_available(void)
1789 {
1790     return object_class_by_name("qxl-vga");
1791 }
1792
1793 static void select_vgahw (const char *p)
1794 {
1795     const char *opts;
1796
1797     vga_interface_type = VGA_NONE;
1798     if (strstart(p, "std", &opts)) {
1799         if (vga_available()) {
1800             vga_interface_type = VGA_STD;
1801         } else {
1802             fprintf(stderr, "Error: standard VGA not available\n");
1803             exit(0);
1804         }
1805     } else if (strstart(p, "cirrus", &opts)) {
1806         if (cirrus_vga_available()) {
1807             vga_interface_type = VGA_CIRRUS;
1808         } else {
1809             fprintf(stderr, "Error: Cirrus VGA not available\n");
1810             exit(0);
1811         }
1812     } else if (strstart(p, "vmware", &opts)) {
1813         if (vmware_vga_available()) {
1814             vga_interface_type = VGA_VMWARE;
1815         } else {
1816             fprintf(stderr, "Error: VMWare SVGA not available\n");
1817             exit(0);
1818         }
1819     } else if (strstart(p, "xenfb", &opts)) {
1820         vga_interface_type = VGA_XENFB;
1821     } else if (strstart(p, "qxl", &opts)) {
1822         if (qxl_vga_available()) {
1823             vga_interface_type = VGA_QXL;
1824         } else {
1825             fprintf(stderr, "Error: QXL VGA not available\n");
1826             exit(0);
1827         }
1828     } else if (!strstart(p, "none", &opts)) {
1829     invalid_vga:
1830         fprintf(stderr, "Unknown vga type: %s\n", p);
1831         exit(1);
1832     }
1833     while (*opts) {
1834         const char *nextopt;
1835
1836         if (strstart(opts, ",retrace=", &nextopt)) {
1837             opts = nextopt;
1838             if (strstart(opts, "dumb", &nextopt))
1839                 vga_retrace_method = VGA_RETRACE_DUMB;
1840             else if (strstart(opts, "precise", &nextopt))
1841                 vga_retrace_method = VGA_RETRACE_PRECISE;
1842             else goto invalid_vga;
1843         } else goto invalid_vga;
1844         opts = nextopt;
1845     }
1846 }
1847
1848 static DisplayType select_display(const char *p)
1849 {
1850     const char *opts;
1851     DisplayType display = DT_DEFAULT;
1852
1853     if (strstart(p, "sdl", &opts)) {
1854 #ifdef CONFIG_SDL
1855         display = DT_SDL;
1856         while (*opts) {
1857             const char *nextopt;
1858
1859             if (strstart(opts, ",frame=", &nextopt)) {
1860                 opts = nextopt;
1861                 if (strstart(opts, "on", &nextopt)) {
1862                     no_frame = 0;
1863                 } else if (strstart(opts, "off", &nextopt)) {
1864                     no_frame = 1;
1865                 } else {
1866                     goto invalid_sdl_args;
1867                 }
1868             } else if (strstart(opts, ",alt_grab=", &nextopt)) {
1869                 opts = nextopt;
1870                 if (strstart(opts, "on", &nextopt)) {
1871                     alt_grab = 1;
1872                 } else if (strstart(opts, "off", &nextopt)) {
1873                     alt_grab = 0;
1874                 } else {
1875                     goto invalid_sdl_args;
1876                 }
1877             } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
1878                 opts = nextopt;
1879                 if (strstart(opts, "on", &nextopt)) {
1880                     ctrl_grab = 1;
1881                 } else if (strstart(opts, "off", &nextopt)) {
1882                     ctrl_grab = 0;
1883                 } else {
1884                     goto invalid_sdl_args;
1885                 }
1886             } else if (strstart(opts, ",window_close=", &nextopt)) {
1887                 opts = nextopt;
1888                 if (strstart(opts, "on", &nextopt)) {
1889                     no_quit = 0;
1890                 } else if (strstart(opts, "off", &nextopt)) {
1891                     no_quit = 1;
1892                 } else {
1893                     goto invalid_sdl_args;
1894                 }
1895             } else {
1896             invalid_sdl_args:
1897                 fprintf(stderr, "Invalid SDL option string: %s\n", p);
1898                 exit(1);
1899             }
1900             opts = nextopt;
1901         }
1902 #else
1903         fprintf(stderr, "SDL support is disabled\n");
1904         exit(1);
1905 #endif
1906     } else if (strstart(p, "vnc", &opts)) {
1907 #ifdef CONFIG_VNC
1908         display_remote++;
1909
1910         if (*opts) {
1911             const char *nextopt;
1912
1913             if (strstart(opts, "=", &nextopt)) {
1914                 vnc_display = nextopt;
1915             }
1916         }
1917         if (!vnc_display) {
1918             fprintf(stderr, "VNC requires a display argument vnc=<display>\n");
1919             exit(1);
1920         }
1921 #else
1922         fprintf(stderr, "VNC support is disabled\n");
1923         exit(1);
1924 #endif
1925     } else if (strstart(p, "curses", &opts)) {
1926 #ifdef CONFIG_CURSES
1927         display = DT_CURSES;
1928 #else
1929         fprintf(stderr, "Curses support is disabled\n");
1930         exit(1);
1931 #endif
1932     } else if (strstart(p, "none", &opts)) {
1933         display = DT_NONE;
1934     } else {
1935         fprintf(stderr, "Unknown display type: %s\n", p);
1936         exit(1);
1937     }
1938
1939     return display;
1940 }
1941
1942 static int balloon_parse(const char *arg)
1943 {
1944     QemuOpts *opts;
1945
1946     if (strcmp(arg, "none") == 0) {
1947         return 0;
1948     }
1949
1950     if (!strncmp(arg, "virtio", 6)) {
1951         if (arg[6] == ',') {
1952             /* have params -> parse them */
1953             opts = qemu_opts_parse(qemu_find_opts("device"), arg+7, 0);
1954             if (!opts)
1955                 return  -1;
1956         } else {
1957             /* create empty opts */
1958             opts = qemu_opts_create(qemu_find_opts("device"), NULL, 0, NULL);
1959         }
1960         qemu_opt_set(opts, "driver", "virtio-balloon");
1961         return 0;
1962     }
1963
1964     return -1;
1965 }
1966
1967 char *qemu_find_file(int type, const char *name)
1968 {
1969     int len;
1970     const char *subdir;
1971     char *buf;
1972
1973     /* Try the name as a straight path first */
1974     if (access(name, R_OK) == 0) {
1975         return g_strdup(name);
1976     }
1977     switch (type) {
1978     case QEMU_FILE_TYPE_BIOS:
1979         subdir = "";
1980         break;
1981     case QEMU_FILE_TYPE_KEYMAP:
1982         subdir = "keymaps/";
1983         break;
1984     default:
1985         abort();
1986     }
1987     len = strlen(data_dir) + strlen(name) + strlen(subdir) + 2;
1988     buf = g_malloc0(len);
1989     snprintf(buf, len, "%s/%s%s", data_dir, subdir, name);
1990     if (access(buf, R_OK)) {
1991         g_free(buf);
1992         return NULL;
1993     }
1994     return buf;
1995 }
1996
1997 static int device_help_func(QemuOpts *opts, void *opaque)
1998 {
1999     return qdev_device_help(opts);
2000 }
2001
2002 static int device_init_func(QemuOpts *opts, void *opaque)
2003 {
2004     DeviceState *dev;
2005
2006     dev = qdev_device_add(opts);
2007     if (!dev)
2008         return -1;
2009     return 0;
2010 }
2011
2012 static int chardev_init_func(QemuOpts *opts, void *opaque)
2013 {
2014     CharDriverState *chr;
2015
2016     chr = qemu_chr_new_from_opts(opts, NULL);
2017     if (!chr)
2018         return -1;
2019     return 0;
2020 }
2021
2022 #ifdef CONFIG_VIRTFS
2023 static int fsdev_init_func(QemuOpts *opts, void *opaque)
2024 {
2025     int ret;
2026     ret = qemu_fsdev_add(opts);
2027
2028     return ret;
2029 }
2030 #endif
2031
2032 static int mon_init_func(QemuOpts *opts, void *opaque)
2033 {
2034     CharDriverState *chr;
2035     const char *chardev;
2036     const char *mode;
2037     int flags;
2038
2039     mode = qemu_opt_get(opts, "mode");
2040     if (mode == NULL) {
2041         mode = "readline";
2042     }
2043     if (strcmp(mode, "readline") == 0) {
2044         flags = MONITOR_USE_READLINE;
2045     } else if (strcmp(mode, "control") == 0) {
2046         flags = MONITOR_USE_CONTROL;
2047     } else {
2048         fprintf(stderr, "unknown monitor mode \"%s\"\n", mode);
2049         exit(1);
2050     }
2051
2052     if (qemu_opt_get_bool(opts, "pretty", 0))
2053         flags |= MONITOR_USE_PRETTY;
2054
2055     if (qemu_opt_get_bool(opts, "default", 0))
2056         flags |= MONITOR_IS_DEFAULT;
2057
2058     chardev = qemu_opt_get(opts, "chardev");
2059     chr = qemu_chr_find(chardev);
2060     if (chr == NULL) {
2061         fprintf(stderr, "chardev \"%s\" not found\n", chardev);
2062         exit(1);
2063     }
2064
2065     monitor_init(chr, flags);
2066     return 0;
2067 }
2068
2069 static void monitor_parse(const char *optarg, const char *mode)
2070 {
2071     static int monitor_device_index = 0;
2072     QemuOpts *opts;
2073     const char *p;
2074     char label[32];
2075     int def = 0;
2076
2077     if (strstart(optarg, "chardev:", &p)) {
2078         snprintf(label, sizeof(label), "%s", p);
2079     } else {
2080         snprintf(label, sizeof(label), "compat_monitor%d",
2081                  monitor_device_index);
2082         if (monitor_device_index == 0) {
2083             def = 1;
2084         }
2085         opts = qemu_chr_parse_compat(label, optarg);
2086         if (!opts) {
2087             fprintf(stderr, "parse error: %s\n", optarg);
2088             exit(1);
2089         }
2090     }
2091
2092     opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, NULL);
2093     if (!opts) {
2094         fprintf(stderr, "duplicate chardev: %s\n", label);
2095         exit(1);
2096     }
2097     qemu_opt_set(opts, "mode", mode);
2098     qemu_opt_set(opts, "chardev", label);
2099     if (def)
2100         qemu_opt_set(opts, "default", "on");
2101     monitor_device_index++;
2102 }
2103
2104 struct device_config {
2105     enum {
2106         DEV_USB,       /* -usbdevice     */
2107         DEV_BT,        /* -bt            */
2108         DEV_SERIAL,    /* -serial        */
2109         DEV_PARALLEL,  /* -parallel      */
2110         DEV_VIRTCON,   /* -virtioconsole */
2111         DEV_DEBUGCON,  /* -debugcon */
2112         DEV_GDB,       /* -gdb, -s */
2113     } type;
2114     const char *cmdline;
2115     Location loc;
2116     QTAILQ_ENTRY(device_config) next;
2117 };
2118 QTAILQ_HEAD(, device_config) device_configs = QTAILQ_HEAD_INITIALIZER(device_configs);
2119
2120 static void add_device_config(int type, const char *cmdline)
2121 {
2122     struct device_config *conf;
2123
2124     conf = g_malloc0(sizeof(*conf));
2125     conf->type = type;
2126     conf->cmdline = cmdline;
2127     loc_save(&conf->loc);
2128     QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2129 }
2130
2131 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2132 {
2133     struct device_config *conf;
2134     int rc;
2135
2136     QTAILQ_FOREACH(conf, &device_configs, next) {
2137         if (conf->type != type)
2138             continue;
2139         loc_push_restore(&conf->loc);
2140         rc = func(conf->cmdline);
2141         loc_pop(&conf->loc);
2142         if (0 != rc)
2143             return rc;
2144     }
2145     return 0;
2146 }
2147
2148 static int serial_parse(const char *devname)
2149 {
2150     static int index = 0;
2151     char label[32];
2152
2153     if (strcmp(devname, "none") == 0)
2154         return 0;
2155     if (index == MAX_SERIAL_PORTS) {
2156         fprintf(stderr, "qemu: too many serial ports\n");
2157         exit(1);
2158     }
2159     snprintf(label, sizeof(label), "serial%d", index);
2160     serial_hds[index] = qemu_chr_new(label, devname, NULL);
2161     if (!serial_hds[index]) {
2162         fprintf(stderr, "qemu: could not connect serial device"
2163                 " to character backend '%s'\n", devname);
2164         return -1;
2165     }
2166     index++;
2167     return 0;
2168 }
2169
2170 static int parallel_parse(const char *devname)
2171 {
2172     static int index = 0;
2173     char label[32];
2174
2175     if (strcmp(devname, "none") == 0)
2176         return 0;
2177     if (index == MAX_PARALLEL_PORTS) {
2178         fprintf(stderr, "qemu: too many parallel ports\n");
2179         exit(1);
2180     }
2181     snprintf(label, sizeof(label), "parallel%d", index);
2182     parallel_hds[index] = qemu_chr_new(label, devname, NULL);
2183     if (!parallel_hds[index]) {
2184         fprintf(stderr, "qemu: could not connect parallel device"
2185                 " to character backend '%s'\n", devname);
2186         return -1;
2187     }
2188     index++;
2189     return 0;
2190 }
2191
2192 static int virtcon_parse(const char *devname)
2193 {
2194     QemuOptsList *device = qemu_find_opts("device");
2195     static int index = 0;
2196     char label[32];
2197     QemuOpts *bus_opts, *dev_opts;
2198
2199     if (strcmp(devname, "none") == 0)
2200         return 0;
2201     if (index == MAX_VIRTIO_CONSOLES) {
2202         fprintf(stderr, "qemu: too many virtio consoles\n");
2203         exit(1);
2204     }
2205
2206     bus_opts = qemu_opts_create(device, NULL, 0, NULL);
2207     if (arch_type == QEMU_ARCH_S390X) {
2208         qemu_opt_set(bus_opts, "driver", "virtio-serial-s390");
2209     } else {
2210         qemu_opt_set(bus_opts, "driver", "virtio-serial-pci");
2211     }
2212
2213     dev_opts = qemu_opts_create(device, NULL, 0, NULL);
2214     qemu_opt_set(dev_opts, "driver", "virtconsole");
2215
2216     snprintf(label, sizeof(label), "virtcon%d", index);
2217     virtcon_hds[index] = qemu_chr_new(label, devname, NULL);
2218     if (!virtcon_hds[index]) {
2219         fprintf(stderr, "qemu: could not connect virtio console"
2220                 " to character backend '%s'\n", devname);
2221         return -1;
2222     }
2223     qemu_opt_set(dev_opts, "chardev", label);
2224
2225     index++;
2226     return 0;
2227 }
2228
2229 static int debugcon_parse(const char *devname)
2230 {
2231     QemuOpts *opts;
2232
2233     if (!qemu_chr_new("debugcon", devname, NULL)) {
2234         exit(1);
2235     }
2236     opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2237     if (!opts) {
2238         fprintf(stderr, "qemu: already have a debugcon device\n");
2239         exit(1);
2240     }
2241     qemu_opt_set(opts, "driver", "isa-debugcon");
2242     qemu_opt_set(opts, "chardev", "debugcon");
2243     return 0;
2244 }
2245
2246 static QEMUMachine *machine_parse(const char *name)
2247 {
2248     QEMUMachine *m, *machine = NULL;
2249
2250     if (name) {
2251         machine = find_machine(name);
2252     }
2253     if (machine) {
2254         return machine;
2255     }
2256     printf("Supported machines are:\n");
2257     for (m = first_machine; m != NULL; m = m->next) {
2258         if (m->alias) {
2259             printf("%-20s %s (alias of %s)\n", m->alias, m->desc, m->name);
2260         }
2261         printf("%-20s %s%s\n", m->name, m->desc,
2262                m->is_default ? " (default)" : "");
2263     }
2264     exit(!name || !is_help_option(name));
2265 }
2266
2267 static int tcg_init(void)
2268 {
2269     tcg_exec_init(tcg_tb_size * 1024 * 1024);
2270     return 0;
2271 }
2272
2273 static struct {
2274     const char *opt_name;
2275     const char *name;
2276     int (*available)(void);
2277     int (*init)(void);
2278     int *allowed;
2279 } accel_list[] = {
2280     { "tcg", "tcg", tcg_available, tcg_init, &tcg_allowed },
2281     { "xen", "Xen", xen_available, xen_init, &xen_allowed },
2282     { "kvm", "KVM", kvm_available, kvm_init, &kvm_allowed },
2283     { "qtest", "QTest", qtest_available, qtest_init, &qtest_allowed },
2284 };
2285
2286 static int configure_accelerator(void)
2287 {
2288     const char *p = NULL;
2289     char buf[10];
2290     int i, ret;
2291     bool accel_initialised = 0;
2292     bool init_failed = 0;
2293
2294     QemuOptsList *list = qemu_find_opts("machine");
2295     if (!QTAILQ_EMPTY(&list->head)) {
2296         p = qemu_opt_get(QTAILQ_FIRST(&list->head), "accel");
2297     }
2298
2299     if (p == NULL) {
2300         /* Use the default "accelerator", tcg */
2301         p = "tcg";
2302     }
2303
2304     while (!accel_initialised && *p != '\0') {
2305         if (*p == ':') {
2306             p++;
2307         }
2308         p = get_opt_name(buf, sizeof (buf), p, ':');
2309         for (i = 0; i < ARRAY_SIZE(accel_list); i++) {
2310             if (strcmp(accel_list[i].opt_name, buf) == 0) {
2311                 *(accel_list[i].allowed) = 1;
2312                 ret = accel_list[i].init();
2313                 if (ret < 0) {
2314                     init_failed = 1;
2315                     if (!accel_list[i].available()) {
2316                         printf("%s not supported for this target\n",
2317                                accel_list[i].name);
2318                     } else {
2319                         fprintf(stderr, "failed to initialize %s: %s\n",
2320                                 accel_list[i].name,
2321                                 strerror(-ret));
2322                     }
2323                     *(accel_list[i].allowed) = 0;
2324                 } else {
2325                     accel_initialised = 1;
2326                 }
2327                 break;
2328             }
2329         }
2330         if (i == ARRAY_SIZE(accel_list)) {
2331             fprintf(stderr, "\"%s\" accelerator does not exist.\n", buf);
2332         }
2333     }
2334
2335     if (!accel_initialised) {
2336         fprintf(stderr, "No accelerator found!\n");
2337         exit(1);
2338     }
2339
2340     if (init_failed) {
2341         fprintf(stderr, "Back to %s accelerator.\n", accel_list[i].name);
2342     }
2343
2344     return !accel_initialised;
2345 }
2346
2347 void qemu_add_exit_notifier(Notifier *notify)
2348 {
2349     notifier_list_add(&exit_notifiers, notify);
2350 }
2351
2352 void qemu_remove_exit_notifier(Notifier *notify)
2353 {
2354     notifier_remove(notify);
2355 }
2356
2357 static void qemu_run_exit_notifiers(void)
2358 {
2359     notifier_list_notify(&exit_notifiers, NULL);
2360 }
2361
2362 void qemu_add_machine_init_done_notifier(Notifier *notify)
2363 {
2364     notifier_list_add(&machine_init_done_notifiers, notify);
2365 }
2366
2367 static void qemu_run_machine_init_done_notifiers(void)
2368 {
2369     notifier_list_notify(&machine_init_done_notifiers, NULL);
2370 }
2371
2372 static const QEMUOption *lookup_opt(int argc, char **argv,
2373                                     const char **poptarg, int *poptind)
2374 {
2375     const QEMUOption *popt;
2376     int optind = *poptind;
2377     char *r = argv[optind];
2378     const char *optarg;
2379
2380     loc_set_cmdline(argv, optind, 1);
2381     optind++;
2382     /* Treat --foo the same as -foo.  */
2383     if (r[1] == '-')
2384         r++;
2385     popt = qemu_options;
2386     for(;;) {
2387         if (!popt->name) {
2388             error_report("invalid option");
2389             exit(1);
2390         }
2391         if (!strcmp(popt->name, r + 1))
2392             break;
2393         popt++;
2394     }
2395     if (popt->flags & HAS_ARG) {
2396         if (optind >= argc) {
2397             error_report("requires an argument");
2398             exit(1);
2399         }
2400         optarg = argv[optind++];
2401         loc_set_cmdline(argv, optind - 2, 2);
2402     } else {
2403         optarg = NULL;
2404     }
2405
2406     *poptarg = optarg;
2407     *poptind = optind;
2408
2409     return popt;
2410 }
2411
2412 static gpointer malloc_and_trace(gsize n_bytes)
2413 {
2414     void *ptr = malloc(n_bytes);
2415     trace_g_malloc(n_bytes, ptr);
2416     return ptr;
2417 }
2418
2419 static gpointer realloc_and_trace(gpointer mem, gsize n_bytes)
2420 {
2421     void *ptr = realloc(mem, n_bytes);
2422     trace_g_realloc(mem, n_bytes, ptr);
2423     return ptr;
2424 }
2425
2426 static void free_and_trace(gpointer mem)
2427 {
2428     trace_g_free(mem);
2429     free(mem);
2430 }
2431
2432 int qemu_init_main_loop(void)
2433 {
2434     return main_loop_init();
2435 }
2436
2437 int main(int argc, char **argv, char **envp)
2438 {
2439     int i;
2440     int snapshot, linux_boot;
2441     const char *icount_option = NULL;
2442     const char *initrd_filename;
2443     const char *kernel_filename, *kernel_cmdline;
2444     char boot_devices[33] = "cad"; /* default to HD->floppy->CD-ROM */
2445     DisplayState *ds;
2446     DisplayChangeListener *dcl;
2447     int cyls, heads, secs, translation;
2448     QemuOpts *hda_opts = NULL, *opts, *machine_opts;
2449     QemuOptsList *olist;
2450     int optind;
2451     const char *optarg;
2452     const char *loadvm = NULL;
2453     QEMUMachine *machine;
2454     const char *cpu_model;
2455     const char *vga_model = "none";
2456     const char *pid_file = NULL;
2457     const char *incoming = NULL;
2458 #ifdef CONFIG_VNC
2459     int show_vnc_port = 0;
2460 #endif
2461     bool defconfig = true;
2462     bool userconfig = true;
2463     const char *log_mask = NULL;
2464     const char *log_file = NULL;
2465     GMemVTable mem_trace = {
2466         .malloc = malloc_and_trace,
2467         .realloc = realloc_and_trace,
2468         .free = free_and_trace,
2469     };
2470     const char *trace_events = NULL;
2471     const char *trace_file = NULL;
2472
2473     atexit(qemu_run_exit_notifiers);
2474     error_set_progname(argv[0]);
2475
2476     g_mem_set_vtable(&mem_trace);
2477     if (!g_thread_supported()) {
2478 #if !GLIB_CHECK_VERSION(2, 31, 0)
2479         g_thread_init(NULL);
2480 #else
2481         fprintf(stderr, "glib threading failed to initialize.\n");
2482         exit(1);
2483 #endif
2484     }
2485
2486     module_call_init(MODULE_INIT_QOM);
2487
2488     runstate_init();
2489
2490     init_clocks();
2491     rtc_clock = host_clock;
2492
2493     qemu_cache_utils_init(envp);
2494
2495     QLIST_INIT (&vm_change_state_head);
2496     os_setup_early_signal_handling();
2497
2498     module_call_init(MODULE_INIT_MACHINE);
2499     machine = find_default_machine();
2500     cpu_model = NULL;
2501     ram_size = 0;
2502     snapshot = 0;
2503     cyls = heads = secs = 0;
2504     translation = BIOS_ATA_TRANSLATION_AUTO;
2505
2506     for (i = 0; i < MAX_NODES; i++) {
2507         node_mem[i] = 0;
2508         node_cpumask[i] = bitmap_new(MAX_CPUMASK_BITS);
2509     }
2510
2511     nb_numa_nodes = 0;
2512     nb_nics = 0;
2513
2514     autostart= 1;
2515
2516     /* first pass of option parsing */
2517     optind = 1;
2518     while (optind < argc) {
2519         if (argv[optind][0] != '-') {
2520             /* disk image */
2521             optind++;
2522             continue;
2523         } else {
2524             const QEMUOption *popt;
2525
2526             popt = lookup_opt(argc, argv, &optarg, &optind);
2527             switch (popt->index) {
2528             case QEMU_OPTION_nodefconfig:
2529                 defconfig = false;
2530                 break;
2531             case QEMU_OPTION_nouserconfig:
2532                 userconfig = false;
2533                 break;
2534             }
2535         }
2536     }
2537
2538     if (defconfig) {
2539         int ret;
2540         ret = qemu_read_default_config_files(userconfig);
2541         if (ret < 0) {
2542             exit(1);
2543         }
2544     }
2545
2546     /* second pass of option parsing */
2547     optind = 1;
2548     for(;;) {
2549         if (optind >= argc)
2550             break;
2551         if (argv[optind][0] != '-') {
2552             hda_opts = drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
2553         } else {
2554             const QEMUOption *popt;
2555
2556             popt = lookup_opt(argc, argv, &optarg, &optind);
2557             if (!(popt->arch_mask & arch_type)) {
2558                 printf("Option %s not supported for this target\n", popt->name);
2559                 exit(1);
2560             }
2561             switch(popt->index) {
2562             case QEMU_OPTION_M:
2563                 machine = machine_parse(optarg);
2564                 break;
2565             case QEMU_OPTION_cpu:
2566                 /* hw initialization will check this */
2567                 cpu_model = optarg;
2568                 break;
2569             case QEMU_OPTION_hda:
2570                 {
2571                     char buf[256];
2572                     if (cyls == 0)
2573                         snprintf(buf, sizeof(buf), "%s", HD_OPTS);
2574                     else
2575                         snprintf(buf, sizeof(buf),
2576                                  "%s,cyls=%d,heads=%d,secs=%d%s",
2577                                  HD_OPTS , cyls, heads, secs,
2578                                  translation == BIOS_ATA_TRANSLATION_LBA ?
2579                                  ",trans=lba" :
2580                                  translation == BIOS_ATA_TRANSLATION_NONE ?
2581                                  ",trans=none" : "");
2582                     drive_add(IF_DEFAULT, 0, optarg, buf);
2583                     break;
2584                 }
2585             case QEMU_OPTION_hdb:
2586             case QEMU_OPTION_hdc:
2587             case QEMU_OPTION_hdd:
2588                 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
2589                           HD_OPTS);
2590                 break;
2591             case QEMU_OPTION_drive:
2592                 if (drive_def(optarg) == NULL) {
2593                     exit(1);
2594                 }
2595                 break;
2596             case QEMU_OPTION_set:
2597                 if (qemu_set_option(optarg) != 0)
2598                     exit(1);
2599                 break;
2600             case QEMU_OPTION_global:
2601                 if (qemu_global_option(optarg) != 0)
2602                     exit(1);
2603                 break;
2604             case QEMU_OPTION_mtdblock:
2605                 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
2606                 break;
2607             case QEMU_OPTION_sd:
2608                 drive_add(IF_SD, 0, optarg, SD_OPTS);
2609                 break;
2610             case QEMU_OPTION_pflash:
2611                 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
2612                 break;
2613             case QEMU_OPTION_snapshot:
2614                 snapshot = 1;
2615                 break;
2616             case QEMU_OPTION_hdachs:
2617                 {
2618                     const char *p;
2619                     p = optarg;
2620                     cyls = strtol(p, (char **)&p, 0);
2621                     if (cyls < 1 || cyls > 16383)
2622                         goto chs_fail;
2623                     if (*p != ',')
2624                         goto chs_fail;
2625                     p++;
2626                     heads = strtol(p, (char **)&p, 0);
2627                     if (heads < 1 || heads > 16)
2628                         goto chs_fail;
2629                     if (*p != ',')
2630                         goto chs_fail;
2631                     p++;
2632                     secs = strtol(p, (char **)&p, 0);
2633                     if (secs < 1 || secs > 63)
2634                         goto chs_fail;
2635                     if (*p == ',') {
2636                         p++;
2637                         if (!strcmp(p, "none"))
2638                             translation = BIOS_ATA_TRANSLATION_NONE;
2639                         else if (!strcmp(p, "lba"))
2640                             translation = BIOS_ATA_TRANSLATION_LBA;
2641                         else if (!strcmp(p, "auto"))
2642                             translation = BIOS_ATA_TRANSLATION_AUTO;
2643                         else
2644                             goto chs_fail;
2645                     } else if (*p != '\0') {
2646                     chs_fail:
2647                         fprintf(stderr, "qemu: invalid physical CHS format\n");
2648                         exit(1);
2649                     }
2650                     if (hda_opts != NULL) {
2651                         char num[16];
2652                         snprintf(num, sizeof(num), "%d", cyls);
2653                         qemu_opt_set(hda_opts, "cyls", num);
2654                         snprintf(num, sizeof(num), "%d", heads);
2655                         qemu_opt_set(hda_opts, "heads", num);
2656                         snprintf(num, sizeof(num), "%d", secs);
2657                         qemu_opt_set(hda_opts, "secs", num);
2658                         if (translation == BIOS_ATA_TRANSLATION_LBA)
2659                             qemu_opt_set(hda_opts, "trans", "lba");
2660                         if (translation == BIOS_ATA_TRANSLATION_NONE)
2661                             qemu_opt_set(hda_opts, "trans", "none");
2662                     }
2663                 }
2664                 break;
2665             case QEMU_OPTION_numa:
2666                 if (nb_numa_nodes >= MAX_NODES) {
2667                     fprintf(stderr, "qemu: too many NUMA nodes\n");
2668                     exit(1);
2669                 }
2670                 numa_add(optarg);
2671                 break;
2672             case QEMU_OPTION_display:
2673                 display_type = select_display(optarg);
2674                 break;
2675             case QEMU_OPTION_nographic:
2676                 display_type = DT_NOGRAPHIC;
2677                 break;
2678             case QEMU_OPTION_curses:
2679 #ifdef CONFIG_CURSES
2680                 display_type = DT_CURSES;
2681 #else
2682                 fprintf(stderr, "Curses support is disabled\n");
2683                 exit(1);
2684 #endif
2685                 break;
2686             case QEMU_OPTION_portrait:
2687                 graphic_rotate = 90;
2688                 break;
2689             case QEMU_OPTION_rotate:
2690                 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
2691                 if (graphic_rotate != 0 && graphic_rotate != 90 &&
2692                     graphic_rotate != 180 && graphic_rotate != 270) {
2693                     fprintf(stderr,
2694                         "qemu: only 90, 180, 270 deg rotation is available\n");
2695                     exit(1);
2696                 }
2697                 break;
2698             case QEMU_OPTION_kernel:
2699                 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg);
2700                 break;
2701             case QEMU_OPTION_initrd:
2702                 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg);
2703                 break;
2704             case QEMU_OPTION_append:
2705                 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg);
2706                 break;
2707             case QEMU_OPTION_dtb:
2708                 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg);
2709                 break;
2710             case QEMU_OPTION_cdrom:
2711                 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
2712                 break;
2713             case QEMU_OPTION_boot:
2714                 {
2715                     static const char * const params[] = {
2716                         "order", "once", "menu",
2717                         "splash", "splash-time",
2718                         "reboot-timeout", NULL
2719                     };
2720                     char buf[sizeof(boot_devices)];
2721                     char *standard_boot_devices;
2722                     int legacy = 0;
2723
2724                     if (!strchr(optarg, '=')) {
2725                         legacy = 1;
2726                         pstrcpy(buf, sizeof(buf), optarg);
2727                     } else if (check_params(buf, sizeof(buf), params, optarg) < 0) {
2728                         fprintf(stderr,
2729                                 "qemu: unknown boot parameter '%s' in '%s'\n",
2730                                 buf, optarg);
2731                         exit(1);
2732                     }
2733
2734                     if (legacy ||
2735                         get_param_value(buf, sizeof(buf), "order", optarg)) {
2736                         validate_bootdevices(buf);
2737                         pstrcpy(boot_devices, sizeof(boot_devices), buf);
2738                     }
2739                     if (!legacy) {
2740                         if (get_param_value(buf, sizeof(buf),
2741                                             "once", optarg)) {
2742                             validate_bootdevices(buf);
2743                             standard_boot_devices = g_strdup(boot_devices);
2744                             pstrcpy(boot_devices, sizeof(boot_devices), buf);
2745                             qemu_register_reset(restore_boot_devices,
2746                                                 standard_boot_devices);
2747                         }
2748                         if (get_param_value(buf, sizeof(buf),
2749                                             "menu", optarg)) {
2750                             if (!strcmp(buf, "on")) {
2751                                 boot_menu = 1;
2752                             } else if (!strcmp(buf, "off")) {
2753                                 boot_menu = 0;
2754                             } else {
2755                                 fprintf(stderr,
2756                                         "qemu: invalid option value '%s'\n",
2757                                         buf);
2758                                 exit(1);
2759                             }
2760                         }
2761                         qemu_opts_parse(qemu_find_opts("boot-opts"),
2762                                         optarg, 0);
2763                     }
2764                 }
2765                 break;
2766             case QEMU_OPTION_fda:
2767             case QEMU_OPTION_fdb:
2768                 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
2769                           optarg, FD_OPTS);
2770                 break;
2771             case QEMU_OPTION_no_fd_bootchk:
2772                 fd_bootchk = 0;
2773                 break;
2774             case QEMU_OPTION_netdev:
2775                 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
2776                     exit(1);
2777                 }
2778                 break;
2779             case QEMU_OPTION_net:
2780                 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
2781                     exit(1);
2782                 }
2783                 break;
2784 #ifdef CONFIG_LIBISCSI
2785             case QEMU_OPTION_iscsi:
2786                 opts = qemu_opts_parse(qemu_find_opts("iscsi"), optarg, 0);
2787                 if (!opts) {
2788                     exit(1);
2789                 }
2790                 break;
2791 #endif
2792 #ifdef CONFIG_SLIRP
2793             case QEMU_OPTION_tftp:
2794                 legacy_tftp_prefix = optarg;
2795                 break;
2796             case QEMU_OPTION_bootp:
2797                 legacy_bootp_filename = optarg;
2798                 break;
2799             case QEMU_OPTION_redir:
2800                 if (net_slirp_redir(optarg) < 0)
2801                     exit(1);
2802                 break;
2803 #endif
2804             case QEMU_OPTION_bt:
2805                 add_device_config(DEV_BT, optarg);
2806                 break;
2807             case QEMU_OPTION_audio_help:
2808                 if (!(audio_available())) {
2809                     printf("Option %s not supported for this target\n", popt->name);
2810                     exit(1);
2811                 }
2812                 AUD_help ();
2813                 exit (0);
2814                 break;
2815             case QEMU_OPTION_soundhw:
2816                 if (!(audio_available())) {
2817                     printf("Option %s not supported for this target\n", popt->name);
2818                     exit(1);
2819                 }
2820                 select_soundhw (optarg);
2821                 break;
2822             case QEMU_OPTION_h:
2823                 help(0);
2824                 break;
2825             case QEMU_OPTION_version:
2826                 version();
2827                 exit(0);
2828                 break;
2829             case QEMU_OPTION_m: {
2830                 int64_t value;
2831                 uint64_t sz;
2832                 char *end;
2833
2834                 value = strtosz(optarg, &end);
2835                 if (value < 0 || *end) {
2836                     fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
2837                     exit(1);
2838                 }
2839                 sz = QEMU_ALIGN_UP((uint64_t)value, 8192);
2840                 ram_size = sz;
2841                 if (ram_size != sz) {
2842                     fprintf(stderr, "qemu: ram size too large\n");
2843                     exit(1);
2844                 }
2845                 break;
2846             }
2847             case QEMU_OPTION_mempath:
2848                 mem_path = optarg;
2849                 break;
2850 #ifdef MAP_POPULATE
2851             case QEMU_OPTION_mem_prealloc:
2852                 mem_prealloc = 1;
2853                 break;
2854 #endif
2855             case QEMU_OPTION_d:
2856                 log_mask = optarg;
2857                 break;
2858             case QEMU_OPTION_D:
2859                 log_file = optarg;
2860                 break;
2861             case QEMU_OPTION_s:
2862                 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
2863                 break;
2864             case QEMU_OPTION_gdb:
2865                 add_device_config(DEV_GDB, optarg);
2866                 break;
2867             case QEMU_OPTION_L:
2868                 data_dir = optarg;
2869                 break;
2870             case QEMU_OPTION_bios:
2871                 bios_name = optarg;
2872                 break;
2873             case QEMU_OPTION_singlestep:
2874                 singlestep = 1;
2875                 break;
2876             case QEMU_OPTION_S:
2877                 autostart = 0;
2878                 break;
2879             case QEMU_OPTION_k:
2880                 keyboard_layout = optarg;
2881                 break;
2882             case QEMU_OPTION_localtime:
2883                 rtc_utc = 0;
2884                 break;
2885             case QEMU_OPTION_vga:
2886                 vga_model = optarg;
2887                 default_vga = 0;
2888                 break;
2889             case QEMU_OPTION_g:
2890                 {
2891                     const char *p;
2892                     int w, h, depth;
2893                     p = optarg;
2894                     w = strtol(p, (char **)&p, 10);
2895                     if (w <= 0) {
2896                     graphic_error:
2897                         fprintf(stderr, "qemu: invalid resolution or depth\n");
2898                         exit(1);
2899                     }
2900                     if (*p != 'x')
2901                         goto graphic_error;
2902                     p++;
2903                     h = strtol(p, (char **)&p, 10);
2904                     if (h <= 0)
2905                         goto graphic_error;
2906                     if (*p == 'x') {
2907                         p++;
2908                         depth = strtol(p, (char **)&p, 10);
2909                         if (depth != 8 && depth != 15 && depth != 16 &&
2910                             depth != 24 && depth != 32)
2911                             goto graphic_error;
2912                     } else if (*p == '\0') {
2913                         depth = graphic_depth;
2914                     } else {
2915                         goto graphic_error;
2916                     }
2917
2918                     graphic_width = w;
2919                     graphic_height = h;
2920                     graphic_depth = depth;
2921                 }
2922                 break;
2923             case QEMU_OPTION_echr:
2924                 {
2925                     char *r;
2926                     term_escape_char = strtol(optarg, &r, 0);
2927                     if (r == optarg)
2928                         printf("Bad argument to echr\n");
2929                     break;
2930                 }
2931             case QEMU_OPTION_monitor:
2932                 monitor_parse(optarg, "readline");
2933                 default_monitor = 0;
2934                 break;
2935             case QEMU_OPTION_qmp:
2936                 monitor_parse(optarg, "control");
2937                 default_monitor = 0;
2938                 break;
2939             case QEMU_OPTION_mon:
2940                 opts = qemu_opts_parse(qemu_find_opts("mon"), optarg, 1);
2941                 if (!opts) {
2942                     exit(1);
2943                 }
2944                 default_monitor = 0;
2945                 break;
2946             case QEMU_OPTION_chardev:
2947                 opts = qemu_opts_parse(qemu_find_opts("chardev"), optarg, 1);
2948                 if (!opts) {
2949                     exit(1);
2950                 }
2951                 break;
2952             case QEMU_OPTION_fsdev:
2953                 olist = qemu_find_opts("fsdev");
2954                 if (!olist) {
2955                     fprintf(stderr, "fsdev is not supported by this qemu build.\n");
2956                     exit(1);
2957                 }
2958                 opts = qemu_opts_parse(olist, optarg, 1);
2959                 if (!opts) {
2960                     fprintf(stderr, "parse error: %s\n", optarg);
2961                     exit(1);
2962                 }
2963                 break;
2964             case QEMU_OPTION_virtfs: {
2965                 QemuOpts *fsdev;
2966                 QemuOpts *device;
2967                 const char *writeout, *sock_fd, *socket;
2968
2969                 olist = qemu_find_opts("virtfs");
2970                 if (!olist) {
2971                     fprintf(stderr, "virtfs is not supported by this qemu build.\n");
2972                     exit(1);
2973                 }
2974                 opts = qemu_opts_parse(olist, optarg, 1);
2975                 if (!opts) {
2976                     fprintf(stderr, "parse error: %s\n", optarg);
2977                     exit(1);
2978                 }
2979
2980                 if (qemu_opt_get(opts, "fsdriver") == NULL ||
2981                     qemu_opt_get(opts, "mount_tag") == NULL) {
2982                     fprintf(stderr, "Usage: -virtfs fsdriver,mount_tag=tag.\n");
2983                     exit(1);
2984                 }
2985                 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
2986                                          qemu_opt_get(opts, "mount_tag"),
2987                                          1, NULL);
2988                 if (!fsdev) {
2989                     fprintf(stderr, "duplicate fsdev id: %s\n",
2990                             qemu_opt_get(opts, "mount_tag"));
2991                     exit(1);
2992                 }
2993
2994                 writeout = qemu_opt_get(opts, "writeout");
2995                 if (writeout) {
2996 #ifdef CONFIG_SYNC_FILE_RANGE
2997                     qemu_opt_set(fsdev, "writeout", writeout);
2998 #else
2999                     fprintf(stderr, "writeout=immediate not supported on "
3000                             "this platform\n");
3001                     exit(1);
3002 #endif
3003                 }
3004                 qemu_opt_set(fsdev, "fsdriver", qemu_opt_get(opts, "fsdriver"));
3005                 qemu_opt_set(fsdev, "path", qemu_opt_get(opts, "path"));
3006                 qemu_opt_set(fsdev, "security_model",
3007                              qemu_opt_get(opts, "security_model"));
3008                 socket = qemu_opt_get(opts, "socket");
3009                 if (socket) {
3010                     qemu_opt_set(fsdev, "socket", socket);
3011                 }
3012                 sock_fd = qemu_opt_get(opts, "sock_fd");
3013                 if (sock_fd) {
3014                     qemu_opt_set(fsdev, "sock_fd", sock_fd);
3015                 }
3016
3017                 qemu_opt_set_bool(fsdev, "readonly",
3018                                 qemu_opt_get_bool(opts, "readonly", 0));
3019                 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3020                                           NULL);
3021                 qemu_opt_set(device, "driver", "virtio-9p-pci");
3022                 qemu_opt_set(device, "fsdev",
3023                              qemu_opt_get(opts, "mount_tag"));
3024                 qemu_opt_set(device, "mount_tag",
3025                              qemu_opt_get(opts, "mount_tag"));
3026                 break;
3027             }
3028             case QEMU_OPTION_virtfs_synth: {
3029                 QemuOpts *fsdev;
3030                 QemuOpts *device;
3031
3032                 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3033                                          1, NULL);
3034                 if (!fsdev) {
3035                     fprintf(stderr, "duplicate option: %s\n", "virtfs_synth");
3036                     exit(1);
3037                 }
3038                 qemu_opt_set(fsdev, "fsdriver", "synth");
3039
3040                 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3041                                           NULL);
3042                 qemu_opt_set(device, "driver", "virtio-9p-pci");
3043                 qemu_opt_set(device, "fsdev", "v_synth");
3044                 qemu_opt_set(device, "mount_tag", "v_synth");
3045                 break;
3046             }
3047             case QEMU_OPTION_serial:
3048                 add_device_config(DEV_SERIAL, optarg);
3049                 default_serial = 0;
3050                 if (strncmp(optarg, "mon:", 4) == 0) {
3051                     default_monitor = 0;
3052                 }
3053                 break;
3054             case QEMU_OPTION_watchdog:
3055                 if (watchdog) {
3056                     fprintf(stderr,
3057                             "qemu: only one watchdog option may be given\n");
3058                     return 1;
3059                 }
3060                 watchdog = optarg;
3061                 break;
3062             case QEMU_OPTION_watchdog_action:
3063                 if (select_watchdog_action(optarg) == -1) {
3064                     fprintf(stderr, "Unknown -watchdog-action parameter\n");
3065                     exit(1);
3066                 }
3067                 break;
3068             case QEMU_OPTION_virtiocon:
3069                 add_device_config(DEV_VIRTCON, optarg);
3070                 default_virtcon = 0;
3071                 if (strncmp(optarg, "mon:", 4) == 0) {
3072                     default_monitor = 0;
3073                 }
3074                 break;
3075             case QEMU_OPTION_parallel:
3076                 add_device_config(DEV_PARALLEL, optarg);
3077                 default_parallel = 0;
3078                 if (strncmp(optarg, "mon:", 4) == 0) {
3079                     default_monitor = 0;
3080                 }
3081                 break;
3082             case QEMU_OPTION_debugcon:
3083                 add_device_config(DEV_DEBUGCON, optarg);
3084                 break;
3085             case QEMU_OPTION_loadvm:
3086                 loadvm = optarg;
3087                 break;
3088             case QEMU_OPTION_full_screen:
3089                 full_screen = 1;
3090                 break;
3091 #ifdef CONFIG_SDL
3092             case QEMU_OPTION_no_frame:
3093                 no_frame = 1;
3094                 break;
3095             case QEMU_OPTION_alt_grab:
3096                 alt_grab = 1;
3097                 break;
3098             case QEMU_OPTION_ctrl_grab:
3099                 ctrl_grab = 1;
3100                 break;
3101             case QEMU_OPTION_no_quit:
3102                 no_quit = 1;
3103                 break;
3104             case QEMU_OPTION_sdl:
3105                 display_type = DT_SDL;
3106                 break;
3107 #else
3108             case QEMU_OPTION_no_frame:
3109             case QEMU_OPTION_alt_grab:
3110             case QEMU_OPTION_ctrl_grab:
3111             case QEMU_OPTION_no_quit:
3112             case QEMU_OPTION_sdl:
3113                 fprintf(stderr, "SDL support is disabled\n");
3114                 exit(1);
3115 #endif
3116             case QEMU_OPTION_pidfile:
3117                 pid_file = optarg;
3118                 break;
3119             case QEMU_OPTION_win2k_hack:
3120                 win2k_install_hack = 1;
3121                 break;
3122             case QEMU_OPTION_rtc_td_hack: {
3123                 static GlobalProperty slew_lost_ticks[] = {
3124                     {
3125                         .driver   = "mc146818rtc",
3126                         .property = "lost_tick_policy",
3127                         .value    = "slew",
3128                     },
3129                     { /* end of list */ }
3130                 };
3131
3132                 qdev_prop_register_global_list(slew_lost_ticks);
3133                 break;
3134             }
3135             case QEMU_OPTION_acpitable:
3136                 do_acpitable_option(optarg);
3137                 break;
3138             case QEMU_OPTION_smbios:
3139                 do_smbios_option(optarg);
3140                 break;
3141             case QEMU_OPTION_enable_kvm:
3142                 olist = qemu_find_opts("machine");
3143                 qemu_opts_parse(olist, "accel=kvm", 0);
3144                 break;
3145             case QEMU_OPTION_machine:
3146                 olist = qemu_find_opts("machine");
3147                 opts = qemu_opts_parse(olist, optarg, 1);
3148                 if (!opts) {
3149                     fprintf(stderr, "parse error: %s\n", optarg);
3150                     exit(1);
3151                 }
3152                 optarg = qemu_opt_get(opts, "type");
3153                 if (optarg) {
3154                     machine = machine_parse(optarg);
3155                 }
3156                 break;
3157             case QEMU_OPTION_usb:
3158                 usb_enabled = 1;
3159                 break;
3160             case QEMU_OPTION_usbdevice:
3161                 usb_enabled = 1;
3162                 add_device_config(DEV_USB, optarg);
3163                 break;
3164             case QEMU_OPTION_device:
3165                 if (!qemu_opts_parse(qemu_find_opts("device"), optarg, 1)) {
3166                     exit(1);
3167                 }
3168                 break;
3169             case QEMU_OPTION_smp:
3170                 smp_parse(optarg);
3171                 if (smp_cpus < 1) {
3172                     fprintf(stderr, "Invalid number of CPUs\n");
3173                     exit(1);
3174                 }
3175                 if (max_cpus < smp_cpus) {
3176                     fprintf(stderr, "maxcpus must be equal to or greater than "
3177                             "smp\n");
3178                     exit(1);
3179                 }
3180                 if (max_cpus > 255) {
3181                     fprintf(stderr, "Unsupported number of maxcpus\n");
3182                     exit(1);
3183                 }
3184                 break;
3185             case QEMU_OPTION_vnc:
3186 #ifdef CONFIG_VNC
3187                 display_remote++;
3188                 vnc_display = optarg;
3189 #else
3190                 fprintf(stderr, "VNC support is disabled\n");
3191                 exit(1);
3192 #endif
3193                 break;
3194             case QEMU_OPTION_no_acpi:
3195                 acpi_enabled = 0;
3196                 break;
3197             case QEMU_OPTION_no_hpet:
3198                 no_hpet = 1;
3199                 break;
3200             case QEMU_OPTION_balloon:
3201                 if (balloon_parse(optarg) < 0) {
3202                     fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
3203                     exit(1);
3204                 }
3205                 break;
3206             case QEMU_OPTION_no_reboot:
3207                 no_reboot = 1;
3208                 break;
3209             case QEMU_OPTION_no_shutdown:
3210                 no_shutdown = 1;
3211                 break;
3212             case QEMU_OPTION_show_cursor:
3213                 cursor_hide = 0;
3214                 break;
3215             case QEMU_OPTION_uuid:
3216                 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
3217                     fprintf(stderr, "Fail to parse UUID string."
3218                             " Wrong format.\n");
3219                     exit(1);
3220                 }
3221                 break;
3222             case QEMU_OPTION_option_rom:
3223                 if (nb_option_roms >= MAX_OPTION_ROMS) {
3224                     fprintf(stderr, "Too many option ROMs\n");
3225                     exit(1);
3226                 }
3227                 opts = qemu_opts_parse(qemu_find_opts("option-rom"), optarg, 1);
3228                 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3229                 option_rom[nb_option_roms].bootindex =
3230                     qemu_opt_get_number(opts, "bootindex", -1);
3231                 if (!option_rom[nb_option_roms].name) {
3232                     fprintf(stderr, "Option ROM file is not specified\n");
3233                     exit(1);
3234                 }
3235                 nb_option_roms++;
3236                 break;
3237             case QEMU_OPTION_semihosting:
3238                 semihosting_enabled = 1;
3239                 break;
3240             case QEMU_OPTION_name:
3241                 qemu_name = g_strdup(optarg);
3242                  {
3243                      char *p = strchr(qemu_name, ',');
3244                      if (p != NULL) {
3245                         *p++ = 0;
3246                         if (strncmp(p, "process=", 8)) {
3247                             fprintf(stderr, "Unknown subargument %s to -name\n", p);
3248                             exit(1);
3249                         }
3250                         p += 8;
3251                         os_set_proc_name(p);
3252                      }
3253                  }
3254                 break;
3255             case QEMU_OPTION_prom_env:
3256                 if (nb_prom_envs >= MAX_PROM_ENVS) {
3257                     fprintf(stderr, "Too many prom variables\n");
3258                     exit(1);
3259                 }
3260                 prom_envs[nb_prom_envs] = optarg;
3261                 nb_prom_envs++;
3262                 break;
3263             case QEMU_OPTION_old_param:
3264                 old_param = 1;
3265                 break;
3266             case QEMU_OPTION_clock:
3267                 configure_alarms(optarg);
3268                 break;
3269             case QEMU_OPTION_startdate:
3270                 configure_rtc_date_offset(optarg, 1);
3271                 break;
3272             case QEMU_OPTION_rtc:
3273                 opts = qemu_opts_parse(qemu_find_opts("rtc"), optarg, 0);
3274                 if (!opts) {
3275                     exit(1);
3276                 }
3277                 configure_rtc(opts);
3278                 break;
3279             case QEMU_OPTION_tb_size:
3280                 tcg_tb_size = strtol(optarg, NULL, 0);
3281                 if (tcg_tb_size < 0) {
3282                     tcg_tb_size = 0;
3283                 }
3284                 break;
3285             case QEMU_OPTION_icount:
3286                 icount_option = optarg;
3287                 break;
3288             case QEMU_OPTION_incoming:
3289                 incoming = optarg;
3290                 runstate_set(RUN_STATE_INMIGRATE);
3291                 break;
3292             case QEMU_OPTION_nodefaults:
3293                 default_serial = 0;
3294                 default_parallel = 0;
3295                 default_virtcon = 0;
3296                 default_monitor = 0;
3297                 default_net = 0;
3298                 default_floppy = 0;
3299                 default_cdrom = 0;
3300                 default_sdcard = 0;
3301                 default_vga = 0;
3302                 break;
3303             case QEMU_OPTION_xen_domid:
3304                 if (!(xen_available())) {
3305                     printf("Option %s not supported for this target\n", popt->name);
3306                     exit(1);
3307                 }
3308                 xen_domid = atoi(optarg);
3309                 break;
3310             case QEMU_OPTION_xen_create:
3311                 if (!(xen_available())) {
3312                     printf("Option %s not supported for this target\n", popt->name);
3313                     exit(1);
3314                 }
3315                 xen_mode = XEN_CREATE;
3316                 break;
3317             case QEMU_OPTION_xen_attach:
3318                 if (!(xen_available())) {
3319                     printf("Option %s not supported for this target\n", popt->name);
3320                     exit(1);
3321                 }
3322                 xen_mode = XEN_ATTACH;
3323                 break;
3324             case QEMU_OPTION_trace:
3325             {
3326                 opts = qemu_opts_parse(qemu_find_opts("trace"), optarg, 0);
3327                 if (!opts) {
3328                     exit(1);
3329                 }
3330                 trace_events = qemu_opt_get(opts, "events");
3331                 trace_file = qemu_opt_get(opts, "file");
3332                 break;
3333             }
3334             case QEMU_OPTION_readconfig:
3335                 {
3336                     int ret = qemu_read_config_file(optarg);
3337                     if (ret < 0) {
3338                         fprintf(stderr, "read config %s: %s\n", optarg,
3339                             strerror(-ret));
3340                         exit(1);
3341                     }
3342                     break;
3343                 }
3344             case QEMU_OPTION_spice:
3345                 olist = qemu_find_opts("spice");
3346                 if (!olist) {
3347                     fprintf(stderr, "spice is not supported by this qemu build.\n");
3348                     exit(1);
3349                 }
3350                 opts = qemu_opts_parse(olist, optarg, 0);
3351                 if (!opts) {
3352                     fprintf(stderr, "parse error: %s\n", optarg);
3353                     exit(1);
3354                 }
3355                 break;
3356             case QEMU_OPTION_writeconfig:
3357                 {
3358                     FILE *fp;
3359                     if (strcmp(optarg, "-") == 0) {
3360                         fp = stdout;
3361                     } else {
3362                         fp = fopen(optarg, "w");
3363                         if (fp == NULL) {
3364                             fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
3365                             exit(1);
3366                         }
3367                     }
3368                     qemu_config_write(fp);
3369                     fclose(fp);
3370                     break;
3371                 }
3372             case QEMU_OPTION_qtest:
3373                 qtest_chrdev = optarg;
3374                 break;
3375             case QEMU_OPTION_qtest_log:
3376                 qtest_log = optarg;
3377                 break;
3378             case QEMU_OPTION_sandbox:
3379                 opts = qemu_opts_parse(qemu_find_opts("sandbox"), optarg, 1);
3380                 if (!opts) {
3381                     exit(0);
3382                 }
3383                 break;
3384             case QEMU_OPTION_add_fd:
3385 #ifndef _WIN32
3386                 opts = qemu_opts_parse(qemu_find_opts("add-fd"), optarg, 0);
3387                 if (!opts) {
3388                     exit(0);
3389                 }
3390 #else
3391                 error_report("File descriptor passing is disabled on this "
3392                              "platform");
3393                 exit(1);
3394 #endif
3395                 break;
3396             default:
3397                 os_parse_cmd_args(popt->index, optarg);
3398             }
3399         }
3400     }
3401     loc_set_none();
3402
3403     if (qemu_opts_foreach(qemu_find_opts("sandbox"), parse_sandbox, NULL, 0)) {
3404         exit(1);
3405     }
3406
3407 #ifndef _WIN32
3408     if (qemu_opts_foreach(qemu_find_opts("add-fd"), parse_add_fd, NULL, 1)) {
3409         exit(1);
3410     }
3411
3412     if (qemu_opts_foreach(qemu_find_opts("add-fd"), cleanup_add_fd, NULL, 1)) {
3413         exit(1);
3414     }
3415 #endif
3416
3417     if (machine == NULL) {
3418         fprintf(stderr, "No machine found.\n");
3419         exit(1);
3420     }
3421
3422     if (machine->hw_version) {
3423         qemu_set_version(machine->hw_version);
3424     }
3425
3426     /* Init CPU def lists, based on config
3427      * - Must be called after all the qemu_read_config_file() calls
3428      * - Must be called before list_cpus()
3429      * - Must be called before machine->init()
3430      */
3431     cpudef_init();
3432
3433     if (cpu_model && is_help_option(cpu_model)) {
3434         list_cpus(stdout, &fprintf, cpu_model);
3435         exit(0);
3436     }
3437
3438     /* Open the logfile at this point, if necessary. We can't open the logfile
3439      * when encountering either of the logging options (-d or -D) because the
3440      * other one may be encountered later on the command line, changing the
3441      * location or level of logging.
3442      */
3443     if (log_mask) {
3444         if (log_file) {
3445             set_cpu_log_filename(log_file);
3446         }
3447         set_cpu_log(log_mask);
3448     }
3449
3450     if (!trace_backend_init(trace_events, trace_file)) {
3451         exit(1);
3452     }
3453
3454     /* If no data_dir is specified then try to find it relative to the
3455        executable path.  */
3456     if (!data_dir) {
3457         data_dir = os_find_datadir(argv[0]);
3458     }
3459     /* If all else fails use the install path specified when building. */
3460     if (!data_dir) {
3461         data_dir = CONFIG_QEMU_DATADIR;
3462     }
3463
3464     /*
3465      * Default to max_cpus = smp_cpus, in case the user doesn't
3466      * specify a max_cpus value.
3467      */
3468     if (!max_cpus)
3469         max_cpus = smp_cpus;
3470
3471     machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
3472     if (smp_cpus > machine->max_cpus) {
3473         fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
3474                 "supported by machine `%s' (%d)\n", smp_cpus,  machine->name,
3475                 machine->max_cpus);
3476         exit(1);
3477     }
3478
3479     /*
3480      * Get the default machine options from the machine if it is not already
3481      * specified either by the configuration file or by the command line.
3482      */
3483     if (machine->default_machine_opts) {
3484         qemu_opts_set_defaults(qemu_find_opts("machine"),
3485                                machine->default_machine_opts, 0);
3486     }
3487
3488     qemu_opts_foreach(qemu_find_opts("device"), default_driver_check, NULL, 0);
3489     qemu_opts_foreach(qemu_find_opts("global"), default_driver_check, NULL, 0);
3490
3491     if (machine->no_serial) {
3492         default_serial = 0;
3493     }
3494     if (machine->no_parallel) {
3495         default_parallel = 0;
3496     }
3497     if (!machine->use_virtcon) {
3498         default_virtcon = 0;
3499     }
3500     if (machine->no_floppy) {
3501         default_floppy = 0;
3502     }
3503     if (machine->no_cdrom) {
3504         default_cdrom = 0;
3505     }
3506     if (machine->no_sdcard) {
3507         default_sdcard = 0;
3508     }
3509
3510     if (display_type == DT_NOGRAPHIC) {
3511         if (default_parallel)
3512             add_device_config(DEV_PARALLEL, "null");
3513         if (default_serial && default_monitor) {
3514             add_device_config(DEV_SERIAL, "mon:stdio");
3515         } else if (default_virtcon && default_monitor) {
3516             add_device_config(DEV_VIRTCON, "mon:stdio");
3517         } else {
3518             if (default_serial)
3519                 add_device_config(DEV_SERIAL, "stdio");
3520             if (default_virtcon)
3521                 add_device_config(DEV_VIRTCON, "stdio");
3522             if (default_monitor)
3523                 monitor_parse("stdio", "readline");
3524         }
3525     } else {
3526         if (default_serial)
3527             add_device_config(DEV_SERIAL, "vc:80Cx24C");
3528         if (default_parallel)
3529             add_device_config(DEV_PARALLEL, "vc:80Cx24C");
3530         if (default_monitor)
3531             monitor_parse("vc:80Cx24C", "readline");
3532         if (default_virtcon)
3533             add_device_config(DEV_VIRTCON, "vc:80Cx24C");
3534     }
3535
3536     socket_init();
3537
3538     if (qemu_opts_foreach(qemu_find_opts("chardev"), chardev_init_func, NULL, 1) != 0)
3539         exit(1);
3540 #ifdef CONFIG_VIRTFS
3541     if (qemu_opts_foreach(qemu_find_opts("fsdev"), fsdev_init_func, NULL, 1) != 0) {
3542         exit(1);
3543     }
3544 #endif
3545
3546     os_daemonize();
3547
3548     if (pid_file && qemu_create_pidfile(pid_file) != 0) {
3549         os_pidfile_error();
3550         exit(1);
3551     }
3552
3553     /* init the memory */
3554     if (ram_size == 0) {
3555         ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
3556     }
3557
3558     if (qemu_opts_foreach(qemu_find_opts("device"), device_help_func, NULL, 0)
3559         != 0) {
3560         exit(0);
3561     }
3562
3563     configure_accelerator();
3564
3565     qemu_init_cpu_loop();
3566     if (qemu_init_main_loop()) {
3567         fprintf(stderr, "qemu_init_main_loop failed\n");
3568         exit(1);
3569     }
3570
3571     machine_opts = qemu_opts_find(qemu_find_opts("machine"), 0);
3572     if (machine_opts) {
3573         kernel_filename = qemu_opt_get(machine_opts, "kernel");
3574         initrd_filename = qemu_opt_get(machine_opts, "initrd");
3575         kernel_cmdline = qemu_opt_get(machine_opts, "append");
3576     } else {
3577         kernel_filename = initrd_filename = kernel_cmdline = NULL;
3578     }
3579
3580     if (!kernel_cmdline) {
3581         kernel_cmdline = "";
3582     }
3583
3584     linux_boot = (kernel_filename != NULL);
3585
3586     if (!linux_boot && *kernel_cmdline != '\0') {
3587         fprintf(stderr, "-append only allowed with -kernel option\n");
3588         exit(1);
3589     }
3590
3591     if (!linux_boot && initrd_filename != NULL) {
3592         fprintf(stderr, "-initrd only allowed with -kernel option\n");
3593         exit(1);
3594     }
3595
3596     if (!linux_boot && machine_opts && qemu_opt_get(machine_opts, "dtb")) {
3597         fprintf(stderr, "-dtb only allowed with -kernel option\n");
3598         exit(1);
3599     }
3600
3601     os_set_line_buffering();
3602
3603     if (init_timer_alarm() < 0) {
3604         fprintf(stderr, "could not initialize alarm timer\n");
3605         exit(1);
3606     }
3607
3608 #ifdef CONFIG_SPICE
3609     /* spice needs the timers to be initialized by this point */
3610     qemu_spice_init();
3611 #endif
3612
3613     if (icount_option && (kvm_enabled() || xen_enabled())) {
3614         fprintf(stderr, "-icount is not allowed with kvm or xen\n");
3615         exit(1);
3616     }
3617     configure_icount(icount_option);
3618
3619     if (net_init_clients() < 0) {
3620         exit(1);
3621     }
3622
3623     /* init the bluetooth world */
3624     if (foreach_device_config(DEV_BT, bt_parse))
3625         exit(1);
3626
3627     if (!xen_enabled()) {
3628         /* On 32-bit hosts, QEMU is limited by virtual address space */
3629         if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
3630             fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
3631             exit(1);
3632         }
3633     }
3634
3635     cpu_exec_init_all();
3636
3637     bdrv_init_with_whitelist();
3638
3639     blk_mig_init();
3640
3641     /* open the virtual block devices */
3642     if (snapshot)
3643         qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot, NULL, 0);
3644     if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func, &machine->use_scsi, 1) != 0)
3645         exit(1);
3646
3647     default_drive(default_cdrom, snapshot, machine->use_scsi,
3648                   IF_DEFAULT, 2, CDROM_OPTS);
3649     default_drive(default_floppy, snapshot, machine->use_scsi,
3650                   IF_FLOPPY, 0, FD_OPTS);
3651     default_drive(default_sdcard, snapshot, machine->use_scsi,
3652                   IF_SD, 0, SD_OPTS);
3653
3654     register_savevm_live(NULL, "ram", 0, 4, &savevm_ram_handlers, NULL);
3655
3656     if (nb_numa_nodes > 0) {
3657         int i;
3658
3659         if (nb_numa_nodes > MAX_NODES) {
3660             nb_numa_nodes = MAX_NODES;
3661         }
3662
3663         /* If no memory size if given for any node, assume the default case
3664          * and distribute the available memory equally across all nodes
3665          */
3666         for (i = 0; i < nb_numa_nodes; i++) {
3667             if (node_mem[i] != 0)
3668                 break;
3669         }
3670         if (i == nb_numa_nodes) {
3671             uint64_t usedmem = 0;
3672
3673             /* On Linux, the each node's border has to be 8MB aligned,
3674              * the final node gets the rest.
3675              */
3676             for (i = 0; i < nb_numa_nodes - 1; i++) {
3677                 node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1);
3678                 usedmem += node_mem[i];
3679             }
3680             node_mem[i] = ram_size - usedmem;
3681         }
3682
3683         for (i = 0; i < nb_numa_nodes; i++) {
3684             if (!bitmap_empty(node_cpumask[i], MAX_CPUMASK_BITS)) {
3685                 break;
3686             }
3687         }
3688         /* assigning the VCPUs round-robin is easier to implement, guest OSes
3689          * must cope with this anyway, because there are BIOSes out there in
3690          * real machines which also use this scheme.
3691          */
3692         if (i == nb_numa_nodes) {
3693             for (i = 0; i < max_cpus; i++) {
3694                 set_bit(i, node_cpumask[i % nb_numa_nodes]);
3695             }
3696         }
3697     }
3698
3699     if (qemu_opts_foreach(qemu_find_opts("mon"), mon_init_func, NULL, 1) != 0) {
3700         exit(1);
3701     }
3702
3703     if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
3704         exit(1);
3705     if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
3706         exit(1);
3707     if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
3708         exit(1);
3709     if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
3710         exit(1);
3711
3712     /* If no default VGA is requested, the default is "none".  */
3713     if (default_vga) {
3714         if (cirrus_vga_available()) {
3715             vga_model = "cirrus";
3716         } else if (vga_available()) {
3717             vga_model = "std";
3718         }
3719     }
3720     select_vgahw(vga_model);
3721
3722     if (watchdog) {
3723         i = select_watchdog(watchdog);
3724         if (i > 0)
3725             exit (i == 1 ? 1 : 0);
3726     }
3727
3728     if (machine->compat_props) {
3729         qdev_prop_register_global_list(machine->compat_props);
3730     }
3731     qemu_add_globals();
3732
3733     qdev_machine_init();
3734
3735     QEMUMachineInitArgs args = { .ram_size = ram_size,
3736                                  .boot_device = boot_devices,
3737                                  .kernel_filename = kernel_filename,
3738                                  .kernel_cmdline = kernel_cmdline,
3739                                  .initrd_filename = initrd_filename,
3740                                  .cpu_model = cpu_model };
3741     machine->init(&args);
3742
3743     cpu_synchronize_all_post_init();
3744
3745     set_numa_modes();
3746
3747     current_machine = machine;
3748
3749     /* init USB devices */
3750     if (usb_enabled) {
3751         if (foreach_device_config(DEV_USB, usb_parse) < 0)
3752             exit(1);
3753     }
3754
3755     /* init generic devices */
3756     if (qemu_opts_foreach(qemu_find_opts("device"), device_init_func, NULL, 1) != 0)
3757         exit(1);
3758
3759     net_check_clients();
3760
3761     /* just use the first displaystate for the moment */
3762     ds = get_displaystate();
3763
3764     if (using_spice)
3765         display_remote++;
3766     if (display_type == DT_DEFAULT && !display_remote) {
3767 #if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
3768         display_type = DT_SDL;
3769 #elif defined(CONFIG_VNC)
3770         vnc_display = "localhost:0,to=99";
3771         show_vnc_port = 1;
3772 #else
3773         display_type = DT_NONE;
3774 #endif
3775     }
3776
3777
3778     /* init local displays */
3779     switch (display_type) {
3780     case DT_NOGRAPHIC:
3781         break;
3782 #if defined(CONFIG_CURSES)
3783     case DT_CURSES:
3784         if (!is_daemonized()) {
3785             curses_display_init(ds, full_screen);
3786         }
3787         break;
3788 #endif
3789 #if defined(CONFIG_SDL)
3790     case DT_SDL:
3791         sdl_display_init(ds, full_screen, no_frame);
3792         break;
3793 #elif defined(CONFIG_COCOA)
3794     case DT_SDL:
3795         cocoa_display_init(ds, full_screen);
3796         break;
3797 #endif
3798     default:
3799         break;
3800     }
3801
3802     /* must be after terminal init, SDL library changes signal handlers */
3803     os_setup_signal_handling();
3804
3805 #ifdef CONFIG_VNC
3806     /* init remote displays */
3807     if (vnc_display) {
3808         vnc_display_init(ds);
3809         if (vnc_display_open(ds, vnc_display) < 0) {
3810             fprintf(stderr, "Failed to start VNC server on `%s'\n",
3811                     vnc_display);
3812             exit(1);
3813         }
3814
3815         if (show_vnc_port) {
3816             printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
3817         }
3818     }
3819 #endif
3820 #ifdef CONFIG_SPICE
3821     if (using_spice && !qxl_enabled) {
3822         qemu_spice_display_init(ds);
3823     }
3824 #endif
3825
3826     /* display setup */
3827     dpy_resize(ds);
3828     dcl = ds->listeners;
3829     while (dcl != NULL) {
3830         if (dcl->dpy_refresh != NULL) {
3831             ds->gui_timer = qemu_new_timer_ms(rt_clock, gui_update, ds);
3832             qemu_mod_timer(ds->gui_timer, qemu_get_clock_ms(rt_clock));
3833             break;
3834         }
3835         dcl = dcl->next;
3836     }
3837     text_consoles_set_display(ds);
3838
3839     if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
3840         exit(1);
3841     }
3842
3843     qdev_machine_creation_done();
3844
3845     if (rom_load_all() != 0) {
3846         fprintf(stderr, "rom loading failed\n");
3847         exit(1);
3848     }
3849
3850     /* TODO: once all bus devices are qdevified, this should be done
3851      * when bus is created by qdev.c */
3852     qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
3853     qemu_run_machine_init_done_notifiers();
3854
3855     qemu_system_reset(VMRESET_SILENT);
3856     if (loadvm) {
3857         if (load_vmstate(loadvm) < 0) {
3858             autostart = 0;
3859         }
3860     }
3861
3862     if (incoming) {
3863         Error *errp = NULL;
3864         int ret = qemu_start_incoming_migration(incoming, &errp);
3865         if (ret < 0) {
3866             if (error_is_set(&errp)) {
3867                 fprintf(stderr, "Migrate: %s\n", error_get_pretty(errp));
3868                 error_free(errp);
3869             }
3870             fprintf(stderr, "Migration failed. Exit code %s(%d), exiting.\n",
3871                     incoming, ret);
3872             exit(ret);
3873         }
3874     } else if (autostart) {
3875         vm_start();
3876     }
3877
3878     os_setup_post();
3879
3880     resume_all_vcpus();
3881     main_loop();
3882     bdrv_close_all();
3883     pause_all_vcpus();
3884     net_cleanup();
3885     res_free();
3886
3887     return 0;
3888 }