vl.c

   1 /*
   2  * QEMU System Emulator
   3  *
   4  * Copyright (c) 2003-2005 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 "vl.h"
  25
  26 #include <unistd.h>
  27 #include <fcntl.h>
  28 #include <signal.h>
  29 #include <time.h>
  30 #include <errno.h>
  31 #include <sys/time.h>
  32
  33 #ifndef _WIN32
  34 #include <sys/times.h>
  35 #include <sys/wait.h>
  36 #include <termios.h>
  37 #include <sys/poll.h>
  38 #include <sys/mman.h>
  39 #include <sys/ioctl.h>
  40 #include <sys/socket.h>
  41 #include <netinet/in.h>
  42 #include <dirent.h>
  43 #include <netdb.h>
  44 #ifdef _BSD
  45 #include <sys/stat.h>
  46 #ifndef __APPLE__
  47 #include <libutil.h>
  48 #endif
  49 #else
  50 #include <linux/if.h>
  51 #include <linux/if_tun.h>
  52 #include <pty.h>
  53 #include <malloc.h>
  54 #include <linux/rtc.h>
  55 #include <linux/ppdev.h>
  56 #endif
  57 #endif
  58
  59 #if defined(CONFIG_SLIRP)
  60 #include "libslirp.h"
  61 #endif
  62
  63 #ifdef _WIN32
  64 #include <malloc.h>
  65 #include <sys/timeb.h>
  66 #include <windows.h>
  67 #include <winsock2.h>
  68 #include <ws2tcpip.h>
  69 #define getopt_long_only getopt_long
  70 #define memalign(align, size) malloc(size)
  71 #endif
  72
  73 #ifdef CONFIG_SDL
  74 #ifdef __APPLE__
  75 #include <SDL/SDL.h>
  76 #endif
  77 #endif /* CONFIG_SDL */
  78
  79 #ifdef CONFIG_COCOA
  80 #undef main
  81 #define main qemu_main
  82 #endif /* CONFIG_COCOA */
  83
  84 #include "disas.h"
  85
  86 #include "exec-all.h"
  87
  88 #define DEFAULT_NETWORK_SCRIPT "/etc/qemu-ifup"
  89
  90 //#define DEBUG_UNUSED_IOPORT
  91 //#define DEBUG_IOPORT
  92
  93 #if !defined(CONFIG_SOFTMMU)
  94 #define PHYS_RAM_MAX_SIZE (256 * 1024 * 1024)
  95 #else
  96 #define PHYS_RAM_MAX_SIZE (2047 * 1024 * 1024)
  97 #endif
  98
  99 #ifdef TARGET_PPC
 100 #define DEFAULT_RAM_SIZE 144
 101 #else
 102 #define DEFAULT_RAM_SIZE 128
 103 #endif
 104 /* in ms */
 105 #define GUI_REFRESH_INTERVAL 30
 106
 107 /* XXX: use a two level table to limit memory usage */
 108 #define MAX_IOPORTS 65536
 109
 110 const char *bios_dir = CONFIG_QEMU_SHAREDIR;
 111 char phys_ram_file[1024];
 112 void *ioport_opaque[MAX_IOPORTS];
 113 IOPortReadFunc *ioport_read_table[3][MAX_IOPORTS];
 114 IOPortWriteFunc *ioport_write_table[3][MAX_IOPORTS];
 115 BlockDriverState *bs_table[MAX_DISKS], *fd_table[MAX_FD];
 116 int vga_ram_size;
 117 int bios_size;
 118 static DisplayState display_state;
 119 int nographic;
 120 const char* keyboard_layout = NULL;
 121 int64_t ticks_per_sec;
 122 int boot_device = 'c';
 123 int ram_size;
 124 int pit_min_timer_count = 0;
 125 int nb_nics;
 126 NICInfo nd_table[MAX_NICS];
 127 QEMUTimer *gui_timer;
 128 int vm_running;
 129 int rtc_utc = 1;
 130 int cirrus_vga_enabled = 1;
 131 #ifdef TARGET_SPARC
 132 int graphic_width = 1024;
 133 int graphic_height = 768;
 134 #else
 135 int graphic_width = 800;
 136 int graphic_height = 600;
 137 #endif
 138 int graphic_depth = 15;
 139 int full_screen = 0;
 140 CharDriverState *serial_hds[MAX_SERIAL_PORTS];
 141 CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
 142 #ifdef TARGET_I386
 143 int win2k_install_hack = 0;
 144 #endif
 145 int usb_enabled = 0;
 146 USBPort *vm_usb_ports[MAX_VM_USB_PORTS];
 147 USBDevice *vm_usb_hub;
 148 static VLANState *first_vlan;
 149 int smp_cpus = 1;
 150 #if defined(TARGET_SPARC)
 151 #define MAX_CPUS 16
 152 #elif defined(TARGET_I386)
 153 #define MAX_CPUS 255
 154 #else
 155 #define MAX_CPUS 1
 156 #endif
 157
 158 /***********************************************************/
 159 /* x86 ISA bus support */
 160
 161 target_phys_addr_t isa_mem_base = 0;
 162 PicState2 *isa_pic;
 163
 164 uint32_t default_ioport_readb(void *opaque, uint32_t address)
 165 {
 166 #ifdef DEBUG_UNUSED_IOPORT
 167     fprintf(stderr, "inb: port=0x%04x\n", address);
 168 #endif
 169     return 0xff;
 170 }
 171
 172 void default_ioport_writeb(void *opaque, uint32_t address, uint32_t data)
 173 {
 174 #ifdef DEBUG_UNUSED_IOPORT
 175     fprintf(stderr, "outb: port=0x%04x data=0x%02x\n", address, data);
 176 #endif
 177 }
 178
 179 /* default is to make two byte accesses */
 180 uint32_t default_ioport_readw(void *opaque, uint32_t address)
 181 {
 182     uint32_t data;
 183     data = ioport_read_table[0][address](ioport_opaque[address], address);
 184     address = (address + 1) & (MAX_IOPORTS - 1);
 185     data |= ioport_read_table[0][address](ioport_opaque[address], address) << 8;
 186     return data;
 187 }
 188
 189 void default_ioport_writew(void *opaque, uint32_t address, uint32_t data)
 190 {
 191     ioport_write_table[0][address](ioport_opaque[address], address, data & 0xff);
 192     address = (address + 1) & (MAX_IOPORTS - 1);
 193     ioport_write_table[0][address](ioport_opaque[address], address, (data >> 8) & 0xff);
 194 }
 195
 196 uint32_t default_ioport_readl(void *opaque, uint32_t address)
 197 {
 198 #ifdef DEBUG_UNUSED_IOPORT
 199     fprintf(stderr, "inl: port=0x%04x\n", address);
 200 #endif
 201     return 0xffffffff;
 202 }
 203
 204 void default_ioport_writel(void *opaque, uint32_t address, uint32_t data)
 205 {
 206 #ifdef DEBUG_UNUSED_IOPORT
 207     fprintf(stderr, "outl: port=0x%04x data=0x%02x\n", address, data);
 208 #endif
 209 }
 210
 211 void init_ioports(void)
 212 {
 213     int i;
 214
 215     for(i = 0; i < MAX_IOPORTS; i++) {
 216         ioport_read_table[0][i] = default_ioport_readb;
 217         ioport_write_table[0][i] = default_ioport_writeb;
 218         ioport_read_table[1][i] = default_ioport_readw;
 219         ioport_write_table[1][i] = default_ioport_writew;
 220         ioport_read_table[2][i] = default_ioport_readl;
 221         ioport_write_table[2][i] = default_ioport_writel;
 222     }
 223 }
 224
 225 /* size is the word size in byte */
 226 int register_ioport_read(int start, int length, int size,
 227                          IOPortReadFunc *func, void *opaque)
 228 {
 229     int i, bsize;
 230
 231     if (size == 1) {
 232         bsize = 0;
 233     } else if (size == 2) {
 234         bsize = 1;
 235     } else if (size == 4) {
 236         bsize = 2;
 237     } else {
 238         hw_error("register_ioport_read: invalid size");
 239         return -1;
 240     }
 241     for(i = start; i < start + length; i += size) {
 242         ioport_read_table[bsize][i] = func;
 243         if (ioport_opaque[i] != NULL && ioport_opaque[i] != opaque)
 244             hw_error("register_ioport_read: invalid opaque");
 245         ioport_opaque[i] = opaque;
 246     }
 247     return 0;
 248 }
 249
 250 /* size is the word size in byte */
 251 int register_ioport_write(int start, int length, int size,
 252                           IOPortWriteFunc *func, void *opaque)
 253 {
 254     int i, bsize;
 255
 256     if (size == 1) {
 257         bsize = 0;
 258     } else if (size == 2) {
 259         bsize = 1;
 260     } else if (size == 4) {
 261         bsize = 2;
 262     } else {
 263         hw_error("register_ioport_write: invalid size");
 264         return -1;
 265     }
 266     for(i = start; i < start + length; i += size) {
 267         ioport_write_table[bsize][i] = func;
 268         if (ioport_opaque[i] != NULL && ioport_opaque[i] != opaque)
 269             hw_error("register_ioport_read: invalid opaque");
 270         ioport_opaque[i] = opaque;
 271     }
 272     return 0;
 273 }
 274
 275 void isa_unassign_ioport(int start, int length)
 276 {
 277     int i;
 278
 279     for(i = start; i < start + length; i++) {
 280         ioport_read_table[0][i] = default_ioport_readb;
 281         ioport_read_table[1][i] = default_ioport_readw;
 282         ioport_read_table[2][i] = default_ioport_readl;
 283
 284         ioport_write_table[0][i] = default_ioport_writeb;
 285         ioport_write_table[1][i] = default_ioport_writew;
 286         ioport_write_table[2][i] = default_ioport_writel;
 287     }
 288 }
 289
 290 /***********************************************************/
 291
 292 void pstrcpy(char *buf, int buf_size, const char *str)
 293 {
 294     int c;
 295     char *q = buf;
 296
 297     if (buf_size <= 0)
 298         return;
 299
 300     for(;;) {
 301         c = *str++;
 302         if (c == 0 || q >= buf + buf_size - 1)
 303             break;
 304         *q++ = c;
 305     }
 306     *q = '\0';
 307 }
 308
 309 /* strcat and truncate. */
 310 char *pstrcat(char *buf, int buf_size, const char *s)
 311 {
 312     int len;
 313     len = strlen(buf);
 314     if (len < buf_size)
 315         pstrcpy(buf + len, buf_size - len, s);
 316     return buf;
 317 }
 318
 319 int strstart(const char *str, const char *val, const char **ptr)
 320 {
 321     const char *p, *q;
 322     p = str;
 323     q = val;
 324     while (*q != '\0') {
 325         if (*p != *q)
 326             return 0;
 327         p++;
 328         q++;
 329     }
 330     if (ptr)
 331         *ptr = p;
 332     return 1;
 333 }
 334
 335 /* return the size or -1 if error */
 336 int get_image_size(const char *filename)
 337 {
 338     int fd, size;
 339     fd = open(filename, O_RDONLY | O_BINARY);
 340     if (fd < 0)
 341         return -1;
 342     size = lseek(fd, 0, SEEK_END);
 343     close(fd);
 344     return size;
 345 }
 346
 347 /* return the size or -1 if error */
 348 int load_image(const char *filename, uint8_t *addr)
 349 {
 350     int fd, size;
 351     fd = open(filename, O_RDONLY | O_BINARY);
 352     if (fd < 0)
 353         return -1;
 354     size = lseek(fd, 0, SEEK_END);
 355     lseek(fd, 0, SEEK_SET);
 356     if (read(fd, addr, size) != size) {
 357         close(fd);
 358         return -1;
 359     }
 360     close(fd);
 361     return size;
 362 }
 363
 364 void cpu_outb(CPUState *env, int addr, int val)
 365 {
 366 #ifdef DEBUG_IOPORT
 367     if (loglevel & CPU_LOG_IOPORT)
 368         fprintf(logfile, "outb: %04x %02x\n", addr, val);
 369 #endif
 370     ioport_write_table[0][addr](ioport_opaque[addr], addr, val);
 371 #ifdef USE_KQEMU
 372     if (env)
 373         env->last_io_time = cpu_get_time_fast();
 374 #endif
 375 }
 376
 377 void cpu_outw(CPUState *env, int addr, int val)
 378 {
 379 #ifdef DEBUG_IOPORT
 380     if (loglevel & CPU_LOG_IOPORT)
 381         fprintf(logfile, "outw: %04x %04x\n", addr, val);
 382 #endif
 383     ioport_write_table[1][addr](ioport_opaque[addr], addr, val);
 384 #ifdef USE_KQEMU
 385     if (env)
 386         env->last_io_time = cpu_get_time_fast();
 387 #endif
 388 }
 389
 390 void cpu_outl(CPUState *env, int addr, int val)
 391 {
 392 #ifdef DEBUG_IOPORT
 393     if (loglevel & CPU_LOG_IOPORT)
 394         fprintf(logfile, "outl: %04x %08x\n", addr, val);
 395 #endif
 396     ioport_write_table[2][addr](ioport_opaque[addr], addr, val);
 397 #ifdef USE_KQEMU
 398     if (env)
 399         env->last_io_time = cpu_get_time_fast();
 400 #endif
 401 }
 402
 403 int cpu_inb(CPUState *env, int addr)
 404 {
 405     int val;
 406     val = ioport_read_table[0][addr](ioport_opaque[addr], addr);
 407 #ifdef DEBUG_IOPORT
 408     if (loglevel & CPU_LOG_IOPORT)
 409         fprintf(logfile, "inb : %04x %02x\n", addr, val);
 410 #endif
 411 #ifdef USE_KQEMU
 412     if (env)
 413         env->last_io_time = cpu_get_time_fast();
 414 #endif
 415     return val;
 416 }
 417
 418 int cpu_inw(CPUState *env, int addr)
 419 {
 420     int val;
 421     val = ioport_read_table[1][addr](ioport_opaque[addr], addr);
 422 #ifdef DEBUG_IOPORT
 423     if (loglevel & CPU_LOG_IOPORT)
 424         fprintf(logfile, "inw : %04x %04x\n", addr, val);
 425 #endif
 426 #ifdef USE_KQEMU
 427     if (env)
 428         env->last_io_time = cpu_get_time_fast();
 429 #endif
 430     return val;
 431 }
 432
 433 int cpu_inl(CPUState *env, int addr)
 434 {
 435     int val;
 436     val = ioport_read_table[2][addr](ioport_opaque[addr], addr);
 437 #ifdef DEBUG_IOPORT
 438     if (loglevel & CPU_LOG_IOPORT)
 439         fprintf(logfile, "inl : %04x %08x\n", addr, val);
 440 #endif
 441 #ifdef USE_KQEMU
 442     if (env)
 443         env->last_io_time = cpu_get_time_fast();
 444 #endif
 445     return val;
 446 }
 447
 448 /***********************************************************/
 449 void hw_error(const char *fmt, ...)
 450 {
 451     va_list ap;
 452     CPUState *env;
 453
 454     va_start(ap, fmt);
 455     fprintf(stderr, "qemu: hardware error: ");
 456     vfprintf(stderr, fmt, ap);
 457     fprintf(stderr, "\n");
 458     for(env = first_cpu; env != NULL; env = env->next_cpu) {
 459         fprintf(stderr, "CPU #%d:\n", env->cpu_index);
 460 #ifdef TARGET_I386
 461         cpu_dump_state(env, stderr, fprintf, X86_DUMP_FPU);
 462 #else
 463         cpu_dump_state(env, stderr, fprintf, 0);
 464 #endif
 465     }
 466     va_end(ap);
 467     abort();
 468 }
 469
 470 /***********************************************************/
 471 /* keyboard/mouse */
 472
 473 static QEMUPutKBDEvent *qemu_put_kbd_event;
 474 static void *qemu_put_kbd_event_opaque;
 475 static QEMUPutMouseEvent *qemu_put_mouse_event;
 476 static void *qemu_put_mouse_event_opaque;
 477 static int qemu_put_mouse_event_absolute;
 478
 479 void qemu_add_kbd_event_handler(QEMUPutKBDEvent *func, void *opaque)
 480 {
 481     qemu_put_kbd_event_opaque = opaque;
 482     qemu_put_kbd_event = func;
 483 }
 484
 485 void qemu_add_mouse_event_handler(QEMUPutMouseEvent *func, void *opaque, int absolute)
 486 {
 487     qemu_put_mouse_event_opaque = opaque;
 488     qemu_put_mouse_event = func;
 489     qemu_put_mouse_event_absolute = absolute;
 490 }
 491
 492 void kbd_put_keycode(int keycode)
 493 {
 494     if (qemu_put_kbd_event) {
 495         qemu_put_kbd_event(qemu_put_kbd_event_opaque, keycode);
 496     }
 497 }
 498
 499 void kbd_mouse_event(int dx, int dy, int dz, int buttons_state)
 500 {
 501     if (qemu_put_mouse_event) {
 502         qemu_put_mouse_event(qemu_put_mouse_event_opaque,
 503                              dx, dy, dz, buttons_state);
 504     }
 505 }
 506
 507 int kbd_mouse_is_absolute(void)
 508 {
 509     return qemu_put_mouse_event_absolute;
 510 }
 511
 512 /***********************************************************/
 513 /* timers */
 514
 515 #if defined(__powerpc__)
 516
 517 static inline uint32_t get_tbl(void)
 518 {
 519     uint32_t tbl;
 520     asm volatile("mftb %0" : "=r" (tbl));
 521     return tbl;
 522 }
 523
 524 static inline uint32_t get_tbu(void)
 525 {
 526         uint32_t tbl;
 527         asm volatile("mftbu %0" : "=r" (tbl));
 528         return tbl;
 529 }
 530
 531 int64_t cpu_get_real_ticks(void)
 532 {
 533     uint32_t l, h, h1;
 534     /* NOTE: we test if wrapping has occurred */
 535     do {
 536         h = get_tbu();
 537         l = get_tbl();
 538         h1 = get_tbu();
 539     } while (h != h1);
 540     return ((int64_t)h << 32) | l;
 541 }
 542
 543 #elif defined(__i386__)
 544
 545 int64_t cpu_get_real_ticks(void)
 546 {
 547     int64_t val;
 548     asm volatile ("rdtsc" : "=A" (val));
 549     return val;
 550 }
 551
 552 #elif defined(__x86_64__)
 553
 554 int64_t cpu_get_real_ticks(void)
 555 {
 556     uint32_t low,high;
 557     int64_t val;
 558     asm volatile("rdtsc" : "=a" (low), "=d" (high));
 559     val = high;
 560     val <<= 32;
 561     val |= low;
 562     return val;
 563 }
 564
 565 #elif defined(__ia64)
 566
 567 int64_t cpu_get_real_ticks(void)
 568 {
 569         int64_t val;
 570         asm volatile ("mov %0 = ar.itc" : "=r"(val) :: "memory");
 571         return val;
 572 }
 573
 574 #elif defined(__s390__)
 575
 576 int64_t cpu_get_real_ticks(void)
 577 {
 578     int64_t val;
 579     asm volatile("stck 0(%1)" : "=m" (val) : "a" (&val) : "cc");
 580     return val;
 581 }
 582
 583 #else
 584 #error unsupported CPU
 585 #endif
 586
 587 static int64_t cpu_ticks_offset;
 588 static int cpu_ticks_enabled;
 589
 590 static inline int64_t cpu_get_ticks(void)
 591 {
 592     if (!cpu_ticks_enabled) {
 593         return cpu_ticks_offset;
 594     } else {
 595         return cpu_get_real_ticks() + cpu_ticks_offset;
 596     }
 597 }
 598
 599 /* enable cpu_get_ticks() */
 600 void cpu_enable_ticks(void)
 601 {
 602     if (!cpu_ticks_enabled) {
 603         cpu_ticks_offset -= cpu_get_real_ticks();
 604         cpu_ticks_enabled = 1;
 605     }
 606 }
 607
 608 /* disable cpu_get_ticks() : the clock is stopped. You must not call
 609    cpu_get_ticks() after that.  */
 610 void cpu_disable_ticks(void)
 611 {
 612     if (cpu_ticks_enabled) {
 613         cpu_ticks_offset = cpu_get_ticks();
 614         cpu_ticks_enabled = 0;
 615     }
 616 }
 617
 618 static int64_t get_clock(void)
 619 {
 620 #ifdef _WIN32
 621     struct _timeb tb;
 622     _ftime(&tb);
 623     return ((int64_t)tb.time * 1000 + (int64_t)tb.millitm) * 1000;
 624 #else
 625     struct timeval tv;
 626     gettimeofday(&tv, NULL);
 627     return tv.tv_sec * 1000000LL + tv.tv_usec;
 628 #endif
 629 }
 630
 631 void cpu_calibrate_ticks(void)
 632 {
 633     int64_t usec, ticks;
 634
 635     usec = get_clock();
 636     ticks = cpu_get_real_ticks();
 637 #ifdef _WIN32
 638     Sleep(50);
 639 #else
 640     usleep(50 * 1000);
 641 #endif
 642     usec = get_clock() - usec;
 643     ticks = cpu_get_real_ticks() - ticks;
 644     ticks_per_sec = (ticks * 1000000LL + (usec >> 1)) / usec;
 645 }
 646
 647 /* compute with 96 bit intermediate result: (a*b)/c */
 648 uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
 649 {
 650     union {
 651         uint64_t ll;
 652         struct {
 653 #ifdef WORDS_BIGENDIAN
 654             uint32_t high, low;
 655 #else
 656             uint32_t low, high;
 657 #endif
 658         } l;
 659     } u, res;
 660     uint64_t rl, rh;
 661
 662     u.ll = a;
 663     rl = (uint64_t)u.l.low * (uint64_t)b;
 664     rh = (uint64_t)u.l.high * (uint64_t)b;
 665     rh += (rl >> 32);
 666     res.l.high = rh / c;
 667     res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
 668     return res.ll;
 669 }
 670
 671 #define QEMU_TIMER_REALTIME 0
 672 #define QEMU_TIMER_VIRTUAL  1
 673
 674 struct QEMUClock {
 675     int type;
 676     /* XXX: add frequency */
 677 };
 678
 679 struct QEMUTimer {
 680     QEMUClock *clock;
 681     int64_t expire_time;
 682     QEMUTimerCB *cb;
 683     void *opaque;
 684     struct QEMUTimer *next;
 685 };
 686
 687 QEMUClock *rt_clock;
 688 QEMUClock *vm_clock;
 689
 690 static QEMUTimer *active_timers[2];
 691 #ifdef _WIN32
 692 static MMRESULT timerID;
 693 #else
 694 /* frequency of the times() clock tick */
 695 static int timer_freq;
 696 #endif
 697
 698 QEMUClock *qemu_new_clock(int type)
 699 {
 700     QEMUClock *clock;
 701     clock = qemu_mallocz(sizeof(QEMUClock));
 702     if (!clock)
 703         return NULL;
 704     clock->type = type;
 705     return clock;
 706 }
 707
 708 QEMUTimer *qemu_new_timer(QEMUClock *clock, QEMUTimerCB *cb, void *opaque)
 709 {
 710     QEMUTimer *ts;
 711
 712     ts = qemu_mallocz(sizeof(QEMUTimer));
 713     ts->clock = clock;
 714     ts->cb = cb;
 715     ts->opaque = opaque;
 716     return ts;
 717 }
 718
 719 void qemu_free_timer(QEMUTimer *ts)
 720 {
 721     qemu_free(ts);
 722 }
 723
 724 /* stop a timer, but do not dealloc it */
 725 void qemu_del_timer(QEMUTimer *ts)
 726 {
 727     QEMUTimer **pt, *t;
 728
 729     /* NOTE: this code must be signal safe because
 730        qemu_timer_expired() can be called from a signal. */
 731     pt = &active_timers[ts->clock->type];
 732     for(;;) {
 733         t = *pt;
 734         if (!t)
 735             break;
 736         if (t == ts) {
 737             *pt = t->next;
 738             break;
 739         }
 740         pt = &t->next;
 741     }
 742 }
 743
 744 /* modify the current timer so that it will be fired when current_time
 745    >= expire_time. The corresponding callback will be called. */
 746 void qemu_mod_timer(QEMUTimer *ts, int64_t expire_time)
 747 {
 748     QEMUTimer **pt, *t;
 749
 750     qemu_del_timer(ts);
 751
 752     /* add the timer in the sorted list */
 753     /* NOTE: this code must be signal safe because
 754        qemu_timer_expired() can be called from a signal. */
 755     pt = &active_timers[ts->clock->type];
 756     for(;;) {
 757         t = *pt;
 758         if (!t)
 759             break;
 760         if (t->expire_time > expire_time)
 761             break;
 762         pt = &t->next;
 763     }
 764     ts->expire_time = expire_time;
 765     ts->next = *pt;
 766     *pt = ts;
 767 }
 768
 769 int qemu_timer_pending(QEMUTimer *ts)
 770 {
 771     QEMUTimer *t;
 772     for(t = active_timers[ts->clock->type]; t != NULL; t = t->next) {
 773         if (t == ts)
 774             return 1;
 775     }
 776     return 0;
 777 }
 778
 779 static inline int qemu_timer_expired(QEMUTimer *timer_head, int64_t current_time)
 780 {
 781     if (!timer_head)
 782         return 0;
 783     return (timer_head->expire_time <= current_time);
 784 }
 785
 786 static void qemu_run_timers(QEMUTimer **ptimer_head, int64_t current_time)
 787 {
 788     QEMUTimer *ts;
 789
 790     for(;;) {
 791         ts = *ptimer_head;
 792         if (!ts || ts->expire_time > current_time)
 793             break;
 794         /* remove timer from the list before calling the callback */
 795         *ptimer_head = ts->next;
 796         ts->next = NULL;
 797
 798         /* run the callback (the timer list can be modified) */
 799         ts->cb(ts->opaque);
 800     }
 801 }
 802
 803 int64_t qemu_get_clock(QEMUClock *clock)
 804 {
 805     switch(clock->type) {
 806     case QEMU_TIMER_REALTIME:
 807 #ifdef _WIN32
 808         return GetTickCount();
 809 #else
 810         {
 811             struct tms tp;
 812
 813             /* Note that using gettimeofday() is not a good solution
 814                for timers because its value change when the date is
 815                modified. */
 816             if (timer_freq == 100) {
 817                 return times(&tp) * 10;
 818             } else {
 819                 return ((int64_t)times(&tp) * 1000) / timer_freq;
 820             }
 821         }
 822 #endif
 823     default:
 824     case QEMU_TIMER_VIRTUAL:
 825         return cpu_get_ticks();
 826     }
 827 }
 828
 829 /* save a timer */
 830 void qemu_put_timer(QEMUFile *f, QEMUTimer *ts)
 831 {
 832     uint64_t expire_time;
 833
 834     if (qemu_timer_pending(ts)) {
 835         expire_time = ts->expire_time;
 836     } else {
 837         expire_time = -1;
 838     }
 839     qemu_put_be64(f, expire_time);
 840 }
 841
 842 void qemu_get_timer(QEMUFile *f, QEMUTimer *ts)
 843 {
 844     uint64_t expire_time;
 845
 846     expire_time = qemu_get_be64(f);
 847     if (expire_time != -1) {
 848         qemu_mod_timer(ts, expire_time);
 849     } else {
 850         qemu_del_timer(ts);
 851     }
 852 }
 853
 854 static void timer_save(QEMUFile *f, void *opaque)
 855 {
 856     if (cpu_ticks_enabled) {
 857         hw_error("cannot save state if virtual timers are running");
 858     }
 859     qemu_put_be64s(f, &cpu_ticks_offset);
 860     qemu_put_be64s(f, &ticks_per_sec);
 861 }
 862
 863 static int timer_load(QEMUFile *f, void *opaque, int version_id)
 864 {
 865     if (version_id != 1)
 866         return -EINVAL;
 867     if (cpu_ticks_enabled) {
 868         return -EINVAL;
 869     }
 870     qemu_get_be64s(f, &cpu_ticks_offset);
 871     qemu_get_be64s(f, &ticks_per_sec);
 872     return 0;
 873 }
 874
 875 #ifdef _WIN32
 876 void CALLBACK host_alarm_handler(UINT uTimerID, UINT uMsg,
 877                                  DWORD_PTR dwUser, DWORD_PTR dw1, DWORD_PTR dw2)
 878 #else
 879 static void host_alarm_handler(int host_signum)
 880 #endif
 881 {
 882 #if 0
 883 #define DISP_FREQ 1000
 884     {
 885         static int64_t delta_min = INT64_MAX;
 886         static int64_t delta_max, delta_cum, last_clock, delta, ti;
 887         static int count;
 888         ti = qemu_get_clock(vm_clock);
 889         if (last_clock != 0) {
 890             delta = ti - last_clock;
 891             if (delta < delta_min)
 892                 delta_min = delta;
 893             if (delta > delta_max)
 894                 delta_max = delta;
 895             delta_cum += delta;
 896             if (++count == DISP_FREQ) {
 897                 printf("timer: min=%lld us max=%lld us avg=%lld us avg_freq=%0.3f Hz\n",
 898                        muldiv64(delta_min, 1000000, ticks_per_sec),
 899                        muldiv64(delta_max, 1000000, ticks_per_sec),
 900                        muldiv64(delta_cum, 1000000 / DISP_FREQ, ticks_per_sec),
 901                        (double)ticks_per_sec / ((double)delta_cum / DISP_FREQ));
 902                 count = 0;
 903                 delta_min = INT64_MAX;
 904                 delta_max = 0;
 905                 delta_cum = 0;
 906             }
 907         }
 908         last_clock = ti;
 909     }
 910 #endif
 911     if (qemu_timer_expired(active_timers[QEMU_TIMER_VIRTUAL],
 912                            qemu_get_clock(vm_clock)) ||
 913         qemu_timer_expired(active_timers[QEMU_TIMER_REALTIME],
 914                            qemu_get_clock(rt_clock))) {
 915         CPUState *env = cpu_single_env;
 916         if (env) {
 917             /* stop the currently executing cpu because a timer occured */
 918             cpu_interrupt(env, CPU_INTERRUPT_EXIT);
 919 #ifdef USE_KQEMU
 920             if (env->kqemu_enabled) {
 921                 kqemu_cpu_interrupt(env);
 922             }
 923 #endif
 924         }
 925     }
 926 }
 927
 928 #ifndef _WIN32
 929
 930 #if defined(__linux__)
 931
 932 #define RTC_FREQ 1024
 933
 934 static int rtc_fd;
 935
 936 static int start_rtc_timer(void)
 937 {
 938     rtc_fd = open("/dev/rtc", O_RDONLY);
 939     if (rtc_fd < 0)
 940         return -1;
 941     if (ioctl(rtc_fd, RTC_IRQP_SET, RTC_FREQ) < 0) {
 942         fprintf(stderr, "Could not configure '/dev/rtc' to have a 1024 Hz timer. This is not a fatal\n"
 943                 "error, but for better emulation accuracy either use a 2.6 host Linux kernel or\n"
 944                 "type 'echo 1024 > /proc/sys/dev/rtc/max-user-freq' as root.\n");
 945         goto fail;
 946     }
 947     if (ioctl(rtc_fd, RTC_PIE_ON, 0) < 0) {
 948     fail:
 949         close(rtc_fd);
 950         return -1;
 951     }
 952     pit_min_timer_count = PIT_FREQ / RTC_FREQ;
 953     return 0;
 954 }
 955
 956 #else
 957
 958 static int start_rtc_timer(void)
 959 {
 960     return -1;
 961 }
 962
 963 #endif /* !defined(__linux__) */
 964
 965 #endif /* !defined(_WIN32) */
 966
 967 static void init_timers(void)
 968 {
 969     rt_clock = qemu_new_clock(QEMU_TIMER_REALTIME);
 970     vm_clock = qemu_new_clock(QEMU_TIMER_VIRTUAL);
 971
 972 #ifdef _WIN32
 973     {
 974         int count=0;
 975         timerID = timeSetEvent(1,     // interval (ms)
 976                                0,     // resolution
 977                                host_alarm_handler, // function
 978                                (DWORD)&count,  // user parameter
 979                                TIME_PERIODIC | TIME_CALLBACK_FUNCTION);
 980         if( !timerID ) {
 981             perror("failed timer alarm");
 982             exit(1);
 983         }
 984     }
 985     pit_min_timer_count = ((uint64_t)10000 * PIT_FREQ) / 1000000;
 986 #else
 987     {
 988         struct sigaction act;
 989         struct itimerval itv;
 990
 991         /* get times() syscall frequency */
 992         timer_freq = sysconf(_SC_CLK_TCK);
 993
 994         /* timer signal */
 995         sigfillset(&act.sa_mask);
 996        act.sa_flags = 0;
 997 #if defined (TARGET_I386) && defined(USE_CODE_COPY)
 998         act.sa_flags |= SA_ONSTACK;
 999 #endif
1000         act.sa_handler = host_alarm_handler;
1001         sigaction(SIGALRM, &act, NULL);
1002
1003         itv.it_interval.tv_sec = 0;
1004         itv.it_interval.tv_usec = 999; /* for i386 kernel 2.6 to get 1 ms */
1005         itv.it_value.tv_sec = 0;
1006         itv.it_value.tv_usec = 10 * 1000;
1007         setitimer(ITIMER_REAL, &itv, NULL);
1008         /* we probe the tick duration of the kernel to inform the user if
1009            the emulated kernel requested a too high timer frequency */
1010         getitimer(ITIMER_REAL, &itv);
1011
1012 #if defined(__linux__)
1013         if (itv.it_interval.tv_usec > 1000) {
1014             /* try to use /dev/rtc to have a faster timer */
1015             if (start_rtc_timer() < 0)
1016                 goto use_itimer;
1017             /* disable itimer */
1018             itv.it_interval.tv_sec = 0;
1019             itv.it_interval.tv_usec = 0;
1020             itv.it_value.tv_sec = 0;
1021             itv.it_value.tv_usec = 0;
1022             setitimer(ITIMER_REAL, &itv, NULL);
1023
1024             /* use the RTC */
1025             sigaction(SIGIO, &act, NULL);
1026             fcntl(rtc_fd, F_SETFL, O_ASYNC);
1027             fcntl(rtc_fd, F_SETOWN, getpid());
1028         } else
1029 #endif /* defined(__linux__) */
1030         {
1031         use_itimer:
1032             pit_min_timer_count = ((uint64_t)itv.it_interval.tv_usec *
1033                                    PIT_FREQ) / 1000000;
1034         }
1035     }
1036 #endif
1037 }
1038
1039 void quit_timers(void)
1040 {
1041 #ifdef _WIN32
1042     timeKillEvent(timerID);
1043 #endif
1044 }
1045
1046 /***********************************************************/
1047 /* character device */
1048
1049 int qemu_chr_write(CharDriverState *s, const uint8_t *buf, int len)
1050 {
1051     return s->chr_write(s, buf, len);
1052 }
1053
1054 int qemu_chr_ioctl(CharDriverState *s, int cmd, void *arg)
1055 {
1056     if (!s->chr_ioctl)
1057         return -ENOTSUP;
1058     return s->chr_ioctl(s, cmd, arg);
1059 }
1060
1061 void qemu_chr_printf(CharDriverState *s, const char *fmt, ...)
1062 {
1063     char buf[4096];
1064     va_list ap;
1065     va_start(ap, fmt);
1066     vsnprintf(buf, sizeof(buf), fmt, ap);
1067     qemu_chr_write(s, buf, strlen(buf));
1068     va_end(ap);
1069 }
1070
1071 void qemu_chr_send_event(CharDriverState *s, int event)
1072 {
1073     if (s->chr_send_event)
1074         s->chr_send_event(s, event);
1075 }
1076
1077 void qemu_chr_add_read_handler(CharDriverState *s,
1078                                IOCanRWHandler *fd_can_read,
1079                                IOReadHandler *fd_read, void *opaque)
1080 {
1081     s->chr_add_read_handler(s, fd_can_read, fd_read, opaque);
1082 }
1083
1084 void qemu_chr_add_event_handler(CharDriverState *s, IOEventHandler *chr_event)
1085 {
1086     s->chr_event = chr_event;
1087 }
1088
1089 static int null_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
1090 {
1091     return len;
1092 }
1093
1094 static void null_chr_add_read_handler(CharDriverState *chr,
1095                                     IOCanRWHandler *fd_can_read,
1096                                     IOReadHandler *fd_read, void *opaque)
1097 {
1098 }
1099
1100 CharDriverState *qemu_chr_open_null(void)
1101 {
1102     CharDriverState *chr;
1103
1104     chr = qemu_mallocz(sizeof(CharDriverState));
1105     if (!chr)
1106         return NULL;
1107     chr->chr_write = null_chr_write;
1108     chr->chr_add_read_handler = null_chr_add_read_handler;
1109     return chr;
1110 }
1111
1112 #ifdef _WIN32
1113
1114 #define socket_error() WSAGetLastError()
1115 #undef EINTR
1116 #define EWOULDBLOCK WSAEWOULDBLOCK
1117 #define EINTR       WSAEINTR
1118 #define EINPROGRESS WSAEINPROGRESS
1119
1120 static void socket_cleanup(void)
1121 {
1122     WSACleanup();
1123 }
1124
1125 static int socket_init(void)
1126 {
1127     WSADATA Data;
1128     int ret, err;
1129
1130     ret = WSAStartup(MAKEWORD(2,2), &Data);
1131     if (ret != 0) {
1132         err = WSAGetLastError();
1133         fprintf(stderr, "WSAStartup: %d\n", err);
1134         return -1;
1135     }
1136     atexit(socket_cleanup);
1137     return 0;
1138 }
1139
1140 static int send_all(int fd, const uint8_t *buf, int len1)
1141 {
1142     int ret, len;
1143
1144     len = len1;
1145     while (len > 0) {
1146         ret = send(fd, buf, len, 0);
1147         if (ret < 0) {
1148             int errno;
1149             errno = WSAGetLastError();
1150             if (errno != WSAEWOULDBLOCK) {
1151                 return -1;
1152             }
1153         } else if (ret == 0) {
1154             break;
1155         } else {
1156             buf += ret;
1157             len -= ret;
1158         }
1159     }
1160     return len1 - len;
1161 }
1162
1163 void socket_set_nonblock(int fd)
1164 {
1165     unsigned long opt = 1;
1166     ioctlsocket(fd, FIONBIO, &opt);
1167 }
1168
1169 #else
1170
1171 #define socket_error() errno
1172 #define closesocket(s) close(s)
1173
1174 static int unix_write(int fd, const uint8_t *buf, int len1)
1175 {
1176     int ret, len;
1177
1178     len = len1;
1179     while (len > 0) {
1180         ret = write(fd, buf, len);
1181         if (ret < 0) {
1182             if (errno != EINTR && errno != EAGAIN)
1183                 return -1;
1184         } else if (ret == 0) {
1185             break;
1186         } else {
1187             buf += ret;
1188             len -= ret;
1189         }
1190     }
1191     return len1 - len;
1192 }
1193
1194 static inline int send_all(int fd, const uint8_t *buf, int len1)
1195 {
1196     return unix_write(fd, buf, len1);
1197 }
1198
1199 void socket_set_nonblock(int fd)
1200 {
1201     fcntl(fd, F_SETFL, O_NONBLOCK);
1202 }
1203 #endif /* !_WIN32 */
1204
1205 #ifndef _WIN32
1206
1207 typedef struct {
1208     int fd_in, fd_out;
1209     IOCanRWHandler *fd_can_read;
1210     IOReadHandler *fd_read;
1211     void *fd_opaque;
1212     int max_size;
1213 } FDCharDriver;
1214
1215 #define STDIO_MAX_CLIENTS 2
1216
1217 static int stdio_nb_clients;
1218 static CharDriverState *stdio_clients[STDIO_MAX_CLIENTS];
1219
1220 static int fd_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
1221 {
1222     FDCharDriver *s = chr->opaque;
1223     return unix_write(s->fd_out, buf, len);
1224 }
1225
1226 static int fd_chr_read_poll(void *opaque)
1227 {
1228     CharDriverState *chr = opaque;
1229     FDCharDriver *s = chr->opaque;
1230
1231     s->max_size = s->fd_can_read(s->fd_opaque);
1232     return s->max_size;
1233 }
1234
1235 static void fd_chr_read(void *opaque)
1236 {
1237     CharDriverState *chr = opaque;
1238     FDCharDriver *s = chr->opaque;
1239     int size, len;
1240     uint8_t buf[1024];
1241
1242     len = sizeof(buf);
1243     if (len > s->max_size)
1244         len = s->max_size;
1245     if (len == 0)
1246         return;
1247     size = read(s->fd_in, buf, len);
1248     if (size > 0) {
1249         s->fd_read(s->fd_opaque, buf, size);
1250     }
1251 }
1252
1253 static void fd_chr_add_read_handler(CharDriverState *chr,
1254                                     IOCanRWHandler *fd_can_read,
1255                                     IOReadHandler *fd_read, void *opaque)
1256 {
1257     FDCharDriver *s = chr->opaque;
1258
1259     if (s->fd_in >= 0) {
1260         s->fd_can_read = fd_can_read;
1261         s->fd_read = fd_read;
1262         s->fd_opaque = opaque;
1263         if (nographic && s->fd_in == 0) {
1264         } else {
1265             qemu_set_fd_handler2(s->fd_in, fd_chr_read_poll,
1266                                  fd_chr_read, NULL, chr);
1267         }
1268     }
1269 }
1270
1271 /* open a character device to a unix fd */
1272 CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out)
1273 {
1274     CharDriverState *chr;
1275     FDCharDriver *s;
1276
1277     chr = qemu_mallocz(sizeof(CharDriverState));
1278     if (!chr)
1279         return NULL;
1280     s = qemu_mallocz(sizeof(FDCharDriver));
1281     if (!s) {
1282         free(chr);
1283         return NULL;
1284     }
1285     s->fd_in = fd_in;
1286     s->fd_out = fd_out;
1287     chr->opaque = s;
1288     chr->chr_write = fd_chr_write;
1289     chr->chr_add_read_handler = fd_chr_add_read_handler;
1290     return chr;
1291 }
1292
1293 CharDriverState *qemu_chr_open_file_out(const char *file_out)
1294 {
1295     int fd_out;
1296
1297     fd_out = open(file_out, O_WRONLY | O_TRUNC | O_CREAT | O_BINARY, 0666);
1298     if (fd_out < 0)
1299         return NULL;
1300     return qemu_chr_open_fd(-1, fd_out);
1301 }
1302
1303 CharDriverState *qemu_chr_open_pipe(const char *filename)
1304 {
1305     int fd;
1306
1307     fd = open(filename, O_RDWR | O_BINARY);
1308     if (fd < 0)
1309         return NULL;
1310     return qemu_chr_open_fd(fd, fd);
1311 }
1312
1313
1314 /* for STDIO, we handle the case where several clients use it
1315    (nographic mode) */
1316
1317 #define TERM_ESCAPE 0x01 /* ctrl-a is used for escape */
1318
1319 #define TERM_FIFO_MAX_SIZE 1
1320
1321 static int term_got_escape, client_index;
1322 static uint8_t term_fifo[TERM_FIFO_MAX_SIZE];
1323 int term_fifo_size;
1324
1325 void term_print_help(void)
1326 {
1327     printf("\n"
1328            "C-a h    print this help\n"
1329            "C-a x    exit emulator\n"
1330            "C-a s    save disk data back to file (if -snapshot)\n"
1331            "C-a b    send break (magic sysrq)\n"
1332            "C-a c    switch between console and monitor\n"
1333            "C-a C-a  send C-a\n"
1334            );
1335 }
1336
1337 /* called when a char is received */
1338 static void stdio_received_byte(int ch)
1339 {
1340     if (term_got_escape) {
1341         term_got_escape = 0;
1342         switch(ch) {
1343         case 'h':
1344             term_print_help();
1345             break;
1346         case 'x':
1347             exit(0);
1348             break;
1349         case 's':
1350             {
1351                 int i;
1352                 for (i = 0; i < MAX_DISKS; i++) {
1353                     if (bs_table[i])
1354                         bdrv_commit(bs_table[i]);
1355                 }
1356             }
1357             break;
1358         case 'b':
1359             if (client_index < stdio_nb_clients) {
1360                 CharDriverState *chr;
1361                 FDCharDriver *s;
1362
1363                 chr = stdio_clients[client_index];
1364                 s = chr->opaque;
1365                 chr->chr_event(s->fd_opaque, CHR_EVENT_BREAK);
1366             }
1367             break;
1368         case 'c':
1369             client_index++;
1370             if (client_index >= stdio_nb_clients)
1371                 client_index = 0;
1372             if (client_index == 0) {
1373                 /* send a new line in the monitor to get the prompt */
1374                 ch = '\r';
1375                 goto send_char;
1376             }
1377             break;
1378         case TERM_ESCAPE:
1379             goto send_char;
1380         }
1381     } else if (ch == TERM_ESCAPE) {
1382         term_got_escape = 1;
1383     } else {
1384     send_char:
1385         if (client_index < stdio_nb_clients) {
1386             uint8_t buf[1];
1387             CharDriverState *chr;
1388             FDCharDriver *s;
1389
1390             chr = stdio_clients[client_index];
1391             s = chr->opaque;
1392             if (s->fd_can_read(s->fd_opaque) > 0) {
1393                 buf[0] = ch;
1394                 s->fd_read(s->fd_opaque, buf, 1);
1395             } else if (term_fifo_size == 0) {
1396                 term_fifo[term_fifo_size++] = ch;
1397             }
1398         }
1399     }
1400 }
1401
1402 static int stdio_read_poll(void *opaque)
1403 {
1404     CharDriverState *chr;
1405     FDCharDriver *s;
1406
1407     if (client_index < stdio_nb_clients) {
1408         chr = stdio_clients[client_index];
1409         s = chr->opaque;
1410         /* try to flush the queue if needed */
1411         if (term_fifo_size != 0 && s->fd_can_read(s->fd_opaque) > 0) {
1412             s->fd_read(s->fd_opaque, term_fifo, 1);
1413             term_fifo_size = 0;
1414         }
1415         /* see if we can absorb more chars */
1416         if (term_fifo_size == 0)
1417             return 1;
1418         else
1419             return 0;
1420     } else {
1421         return 1;
1422     }
1423 }
1424
1425 static void stdio_read(void *opaque)
1426 {
1427     int size;
1428     uint8_t buf[1];
1429
1430     size = read(0, buf, 1);
1431     if (size > 0)
1432         stdio_received_byte(buf[0]);
1433 }
1434
1435 /* init terminal so that we can grab keys */
1436 static struct termios oldtty;
1437 static int old_fd0_flags;
1438
1439 static void term_exit(void)
1440 {
1441     tcsetattr (0, TCSANOW, &oldtty);
1442     fcntl(0, F_SETFL, old_fd0_flags);
1443 }
1444
1445 static void term_init(void)
1446 {
1447     struct termios tty;
1448
1449     tcgetattr (0, &tty);
1450     oldtty = tty;
1451     old_fd0_flags = fcntl(0, F_GETFL);
1452
1453     tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
1454                           |INLCR|IGNCR|ICRNL|IXON);
1455     tty.c_oflag |= OPOST;
1456     tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
1457     /* if graphical mode, we allow Ctrl-C handling */
1458     if (nographic)
1459         tty.c_lflag &= ~ISIG;
1460     tty.c_cflag &= ~(CSIZE|PARENB);
1461     tty.c_cflag |= CS8;
1462     tty.c_cc[VMIN] = 1;
1463     tty.c_cc[VTIME] = 0;
1464
1465     tcsetattr (0, TCSANOW, &tty);
1466
1467     atexit(term_exit);
1468
1469     fcntl(0, F_SETFL, O_NONBLOCK);
1470 }
1471
1472 CharDriverState *qemu_chr_open_stdio(void)
1473 {
1474     CharDriverState *chr;
1475
1476     if (nographic) {
1477         if (stdio_nb_clients >= STDIO_MAX_CLIENTS)
1478             return NULL;
1479         chr = qemu_chr_open_fd(0, 1);
1480         if (stdio_nb_clients == 0)
1481             qemu_set_fd_handler2(0, stdio_read_poll, stdio_read, NULL, NULL);
1482         client_index = stdio_nb_clients;
1483     } else {
1484         if (stdio_nb_clients != 0)
1485             return NULL;
1486         chr = qemu_chr_open_fd(0, 1);
1487     }
1488     stdio_clients[stdio_nb_clients++] = chr;
1489     if (stdio_nb_clients == 1) {
1490         /* set the terminal in raw mode */
1491         term_init();
1492     }
1493     return chr;
1494 }
1495
1496 #if defined(__linux__)
1497 CharDriverState *qemu_chr_open_pty(void)
1498 {
1499     struct termios tty;
1500     char slave_name[1024];
1501     int master_fd, slave_fd;
1502
1503     /* Not satisfying */
1504     if (openpty(&master_fd, &slave_fd, slave_name, NULL, NULL) < 0) {
1505         return NULL;
1506     }
1507
1508     /* Disabling local echo and line-buffered output */
1509     tcgetattr (master_fd, &tty);
1510     tty.c_lflag &= ~(ECHO|ICANON|ISIG);
1511     tty.c_cc[VMIN] = 1;
1512     tty.c_cc[VTIME] = 0;
1513     tcsetattr (master_fd, TCSAFLUSH, &tty);
1514
1515     fprintf(stderr, "char device redirected to %s\n", slave_name);
1516     return qemu_chr_open_fd(master_fd, master_fd);
1517 }
1518
1519 static void tty_serial_init(int fd, int speed,
1520                             int parity, int data_bits, int stop_bits)
1521 {
1522     struct termios tty;
1523     speed_t spd;
1524
1525 #if 0
1526     printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
1527            speed, parity, data_bits, stop_bits);
1528 #endif
1529     tcgetattr (fd, &tty);
1530
1531     switch(speed) {
1532     case 50:
1533         spd = B50;
1534         break;
1535     case 75:
1536         spd = B75;
1537         break;
1538     case 300:
1539         spd = B300;
1540         break;
1541     case 600:
1542         spd = B600;
1543         break;
1544     case 1200:
1545         spd = B1200;
1546         break;
1547     case 2400:
1548         spd = B2400;
1549         break;
1550     case 4800:
1551         spd = B4800;
1552         break;
1553     case 9600:
1554         spd = B9600;
1555         break;
1556     case 19200:
1557         spd = B19200;
1558         break;
1559     case 38400:
1560         spd = B38400;
1561         break;
1562     case 57600:
1563         spd = B57600;
1564         break;
1565     default:
1566     case 115200:
1567         spd = B115200;
1568         break;
1569     }
1570
1571     cfsetispeed(&tty, spd);
1572     cfsetospeed(&tty, spd);
1573
1574     tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
1575                           |INLCR|IGNCR|ICRNL|IXON);
1576     tty.c_oflag |= OPOST;
1577     tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG);
1578     tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS);
1579     switch(data_bits) {
1580     default:
1581     case 8:
1582         tty.c_cflag |= CS8;
1583         break;
1584     case 7:
1585         tty.c_cflag |= CS7;
1586         break;
1587     case 6:
1588         tty.c_cflag |= CS6;
1589         break;
1590     case 5:
1591         tty.c_cflag |= CS5;
1592         break;
1593     }
1594     switch(parity) {
1595     default:
1596     case 'N':
1597         break;
1598     case 'E':
1599         tty.c_cflag |= PARENB;
1600         break;
1601     case 'O':
1602         tty.c_cflag |= PARENB | PARODD;
1603         break;
1604     }
1605
1606     tcsetattr (fd, TCSANOW, &tty);
1607 }
1608
1609 static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg)
1610 {
1611     FDCharDriver *s = chr->opaque;
1612
1613     switch(cmd) {
1614     case CHR_IOCTL_SERIAL_SET_PARAMS:
1615         {
1616             QEMUSerialSetParams *ssp = arg;
1617             tty_serial_init(s->fd_in, ssp->speed, ssp->parity,
1618                             ssp->data_bits, ssp->stop_bits);
1619         }
1620         break;
1621     case CHR_IOCTL_SERIAL_SET_BREAK:
1622         {
1623             int enable = *(int *)arg;
1624             if (enable)
1625                 tcsendbreak(s->fd_in, 1);
1626         }
1627         break;
1628     default:
1629         return -ENOTSUP;
1630     }
1631     return 0;
1632 }
1633
1634 CharDriverState *qemu_chr_open_tty(const char *filename)
1635 {
1636     CharDriverState *chr;
1637     int fd;
1638
1639     fd = open(filename, O_RDWR | O_NONBLOCK);
1640     if (fd < 0)
1641         return NULL;
1642     fcntl(fd, F_SETFL, O_NONBLOCK);
1643     tty_serial_init(fd, 115200, 'N', 8, 1);
1644     chr = qemu_chr_open_fd(fd, fd);
1645     if (!chr)
1646         return NULL;
1647     chr->chr_ioctl = tty_serial_ioctl;
1648     return chr;
1649 }
1650
1651 static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1652 {
1653     int fd = (int)chr->opaque;
1654     uint8_t b;
1655
1656     switch(cmd) {
1657     case CHR_IOCTL_PP_READ_DATA:
1658         if (ioctl(fd, PPRDATA, &b) < 0)
1659             return -ENOTSUP;
1660         *(uint8_t *)arg = b;
1661         break;
1662     case CHR_IOCTL_PP_WRITE_DATA:
1663         b = *(uint8_t *)arg;
1664         if (ioctl(fd, PPWDATA, &b) < 0)
1665             return -ENOTSUP;
1666         break;
1667     case CHR_IOCTL_PP_READ_CONTROL:
1668         if (ioctl(fd, PPRCONTROL, &b) < 0)
1669             return -ENOTSUP;
1670         *(uint8_t *)arg = b;
1671         break;
1672     case CHR_IOCTL_PP_WRITE_CONTROL:
1673         b = *(uint8_t *)arg;
1674         if (ioctl(fd, PPWCONTROL, &b) < 0)
1675             return -ENOTSUP;
1676         break;
1677     case CHR_IOCTL_PP_READ_STATUS:
1678         if (ioctl(fd, PPRSTATUS, &b) < 0)
1679             return -ENOTSUP;
1680         *(uint8_t *)arg = b;
1681         break;
1682     default:
1683         return -ENOTSUP;
1684     }
1685     return 0;
1686 }
1687
1688 CharDriverState *qemu_chr_open_pp(const char *filename)
1689 {
1690     CharDriverState *chr;
1691     int fd;
1692
1693     fd = open(filename, O_RDWR);
1694     if (fd < 0)
1695         return NULL;
1696
1697     if (ioctl(fd, PPCLAIM) < 0) {
1698         close(fd);
1699         return NULL;
1700     }
1701
1702     chr = qemu_mallocz(sizeof(CharDriverState));
1703     if (!chr) {
1704         close(fd);
1705         return NULL;
1706     }
1707     chr->opaque = (void *)fd;
1708     chr->chr_write = null_chr_write;
1709     chr->chr_add_read_handler = null_chr_add_read_handler;
1710     chr->chr_ioctl = pp_ioctl;
1711     return chr;
1712 }
1713
1714 #else
1715 CharDriverState *qemu_chr_open_pty(void)
1716 {
1717     return NULL;
1718 }
1719 #endif
1720
1721 #endif /* !defined(_WIN32) */
1722
1723 #ifdef _WIN32
1724 typedef struct {
1725     IOCanRWHandler *fd_can_read;
1726     IOReadHandler *fd_read;
1727     void *win_opaque;
1728     int max_size;
1729     HANDLE hcom, hrecv, hsend;
1730     OVERLAPPED orecv, osend;
1731     BOOL fpipe;
1732     DWORD len;
1733 } WinCharState;
1734
1735 #define NSENDBUF 2048
1736 #define NRECVBUF 2048
1737 #define MAXCONNECT 1
1738 #define NTIMEOUT 5000
1739
1740 static int win_chr_poll(void *opaque);
1741 static int win_chr_pipe_poll(void *opaque);
1742
1743 static void win_chr_close2(WinCharState *s)
1744 {
1745     if (s->hsend) {
1746         CloseHandle(s->hsend);
1747         s->hsend = NULL;
1748     }
1749     if (s->hrecv) {
1750         CloseHandle(s->hrecv);
1751         s->hrecv = NULL;
1752     }
1753     if (s->hcom) {
1754         CloseHandle(s->hcom);
1755         s->hcom = NULL;
1756     }
1757     if (s->fpipe)
1758         qemu_del_polling_cb(win_chr_pipe_poll, s);
1759     else
1760         qemu_del_polling_cb(win_chr_poll, s);
1761 }
1762
1763 static void win_chr_close(CharDriverState *chr)
1764 {
1765     WinCharState *s = chr->opaque;
1766     win_chr_close2(s);
1767 }
1768
1769 static int win_chr_init(WinCharState *s, const char *filename)
1770 {
1771     COMMCONFIG comcfg;
1772     COMMTIMEOUTS cto = { 0, 0, 0, 0, 0};
1773     COMSTAT comstat;
1774     DWORD size;
1775     DWORD err;
1776
1777     s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1778     if (!s->hsend) {
1779         fprintf(stderr, "Failed CreateEvent\n");
1780         goto fail;
1781     }
1782     s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1783     if (!s->hrecv) {
1784         fprintf(stderr, "Failed CreateEvent\n");
1785         goto fail;
1786     }
1787
1788     s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL,
1789                       OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
1790     if (s->hcom == INVALID_HANDLE_VALUE) {
1791         fprintf(stderr, "Failed CreateFile (%lu)\n", GetLastError());
1792         s->hcom = NULL;
1793         goto fail;
1794     }
1795
1796     if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) {
1797         fprintf(stderr, "Failed SetupComm\n");
1798         goto fail;
1799     }
1800
1801     ZeroMemory(&comcfg, sizeof(COMMCONFIG));
1802     size = sizeof(COMMCONFIG);
1803     GetDefaultCommConfig(filename, &comcfg, &size);
1804     comcfg.dcb.DCBlength = sizeof(DCB);
1805     CommConfigDialog(filename, NULL, &comcfg);
1806
1807     if (!SetCommState(s->hcom, &comcfg.dcb)) {
1808         fprintf(stderr, "Failed SetCommState\n");
1809         goto fail;
1810     }
1811
1812     if (!SetCommMask(s->hcom, EV_ERR)) {
1813         fprintf(stderr, "Failed SetCommMask\n");
1814         goto fail;
1815     }
1816
1817     cto.ReadIntervalTimeout = MAXDWORD;
1818     if (!SetCommTimeouts(s->hcom, &cto)) {
1819         fprintf(stderr, "Failed SetCommTimeouts\n");
1820         goto fail;
1821     }
1822
1823     if (!ClearCommError(s->hcom, &err, &comstat)) {
1824         fprintf(stderr, "Failed ClearCommError\n");
1825         goto fail;
1826     }
1827     qemu_add_polling_cb(win_chr_poll, s);
1828     return 0;
1829
1830  fail:
1831     win_chr_close2(s);
1832     return -1;
1833 }
1834
1835 static int win_chr_write(CharDriverState *chr, const uint8_t *buf, int len1)
1836 {
1837     WinCharState *s = chr->opaque;
1838     DWORD len, ret, size, err;
1839
1840     len = len1;
1841     ZeroMemory(&s->osend, sizeof(s->osend));
1842     s->osend.hEvent = s->hsend;
1843     while (len > 0) {
1844         if (s->hsend)
1845             ret = WriteFile(s->hcom, buf, len, &size, &s->osend);
1846         else
1847             ret = WriteFile(s->hcom, buf, len, &size, NULL);
1848         if (!ret) {
1849             err = GetLastError();
1850             if (err == ERROR_IO_PENDING) {
1851                 ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE);
1852                 if (ret) {
1853                     buf += size;
1854                     len -= size;
1855                 } else {
1856                     break;
1857                 }
1858             } else {
1859                 break;
1860             }
1861         } else {
1862             buf += size;
1863             len -= size;
1864         }
1865     }
1866     return len1 - len;
1867 }
1868
1869 static int win_chr_read_poll(WinCharState *s)
1870 {
1871     s->max_size = s->fd_can_read(s->win_opaque);
1872     return s->max_size;
1873 }
1874
1875 static void win_chr_readfile(WinCharState *s)
1876 {
1877     int ret, err;
1878     uint8_t buf[1024];
1879     DWORD size;
1880
1881     ZeroMemory(&s->orecv, sizeof(s->orecv));
1882     s->orecv.hEvent = s->hrecv;
1883     ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv);
1884     if (!ret) {
1885         err = GetLastError();
1886         if (err == ERROR_IO_PENDING) {
1887             ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE);
1888         }
1889     }
1890
1891     if (size > 0) {
1892         s->fd_read(s->win_opaque, buf, size);
1893     }
1894 }
1895
1896 static void win_chr_read(WinCharState *s)
1897 {
1898     if (s->len > s->max_size)
1899         s->len = s->max_size;
1900     if (s->len == 0)
1901         return;
1902
1903     win_chr_readfile(s);
1904 }
1905
1906 static int win_chr_poll(void *opaque)
1907 {
1908     WinCharState *s = opaque;
1909     COMSTAT status;
1910     DWORD comerr;
1911
1912     ClearCommError(s->hcom, &comerr, &status);
1913     if (status.cbInQue > 0) {
1914         s->len = status.cbInQue;
1915         win_chr_read_poll(s);
1916         win_chr_read(s);
1917         return 1;
1918     }
1919     return 0;
1920 }
1921
1922 static void win_chr_add_read_handler(CharDriverState *chr,
1923                                     IOCanRWHandler *fd_can_read,
1924                                     IOReadHandler *fd_read, void *opaque)
1925 {
1926     WinCharState *s = chr->opaque;
1927
1928     s->fd_can_read = fd_can_read;
1929     s->fd_read = fd_read;
1930     s->win_opaque = opaque;
1931 }
1932
1933 CharDriverState *qemu_chr_open_win(const char *filename)
1934 {
1935     CharDriverState *chr;
1936     WinCharState *s;
1937
1938     chr = qemu_mallocz(sizeof(CharDriverState));
1939     if (!chr)
1940         return NULL;
1941     s = qemu_mallocz(sizeof(WinCharState));
1942     if (!s) {
1943         free(chr);
1944         return NULL;
1945     }
1946     chr->opaque = s;
1947     chr->chr_write = win_chr_write;
1948     chr->chr_add_read_handler = win_chr_add_read_handler;
1949     chr->chr_close = win_chr_close;
1950
1951     if (win_chr_init(s, filename) < 0) {
1952         free(s);
1953         free(chr);
1954         return NULL;
1955     }
1956     return chr;
1957 }
1958
1959 static int win_chr_pipe_poll(void *opaque)
1960 {
1961     WinCharState *s = opaque;
1962     DWORD size;
1963
1964     PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL);
1965     if (size > 0) {
1966         s->len = size;
1967         win_chr_read_poll(s);
1968         win_chr_read(s);
1969         return 1;
1970     }
1971     return 0;
1972 }
1973
1974 static int win_chr_pipe_init(WinCharState *s, const char *filename)
1975 {
1976     OVERLAPPED ov;
1977     int ret;
1978     DWORD size;
1979     char openname[256];
1980
1981     s->fpipe = TRUE;
1982
1983     s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1984     if (!s->hsend) {
1985         fprintf(stderr, "Failed CreateEvent\n");
1986         goto fail;
1987     }
1988     s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1989     if (!s->hrecv) {
1990         fprintf(stderr, "Failed CreateEvent\n");
1991         goto fail;
1992     }
1993
1994     snprintf(openname, sizeof(openname), "\\\\.\\pipe\\%s", filename);
1995     s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
1996                               PIPE_TYPE_BYTE | PIPE_READMODE_BYTE |
1997                               PIPE_WAIT,
1998                               MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL);
1999     if (s->hcom == INVALID_HANDLE_VALUE) {
2000         fprintf(stderr, "Failed CreateNamedPipe (%lu)\n", GetLastError());
2001         s->hcom = NULL;
2002         goto fail;
2003     }
2004
2005     ZeroMemory(&ov, sizeof(ov));
2006     ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
2007     ret = ConnectNamedPipe(s->hcom, &ov);
2008     if (ret) {
2009         fprintf(stderr, "Failed ConnectNamedPipe\n");
2010         goto fail;
2011     }
2012
2013     ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE);
2014     if (!ret) {
2015         fprintf(stderr, "Failed GetOverlappedResult\n");
2016         if (ov.hEvent) {
2017             CloseHandle(ov.hEvent);
2018             ov.hEvent = NULL;
2019         }
2020         goto fail;
2021     }
2022
2023     if (ov.hEvent) {
2024         CloseHandle(ov.hEvent);
2025         ov.hEvent = NULL;
2026     }
2027     qemu_add_polling_cb(win_chr_pipe_poll, s);
2028     return 0;
2029
2030  fail:
2031     win_chr_close2(s);
2032     return -1;
2033 }
2034
2035
2036 CharDriverState *qemu_chr_open_win_pipe(const char *filename)
2037 {
2038     CharDriverState *chr;
2039     WinCharState *s;
2040
2041     chr = qemu_mallocz(sizeof(CharDriverState));
2042     if (!chr)
2043         return NULL;
2044     s = qemu_mallocz(sizeof(WinCharState));
2045     if (!s) {
2046         free(chr);
2047         return NULL;
2048     }
2049     chr->opaque = s;
2050     chr->chr_write = win_chr_write;
2051     chr->chr_add_read_handler = win_chr_add_read_handler;
2052     chr->chr_close = win_chr_close;
2053
2054     if (win_chr_pipe_init(s, filename) < 0) {
2055         free(s);
2056         free(chr);
2057         return NULL;
2058     }
2059     return chr;
2060 }
2061
2062 CharDriverState *qemu_chr_open_win_file(HANDLE fd_out)
2063 {
2064     CharDriverState *chr;
2065     WinCharState *s;
2066
2067     chr = qemu_mallocz(sizeof(CharDriverState));
2068     if (!chr)
2069         return NULL;
2070     s = qemu_mallocz(sizeof(WinCharState));
2071     if (!s) {
2072         free(chr);
2073         return NULL;
2074     }
2075     s->hcom = fd_out;
2076     chr->opaque = s;
2077     chr->chr_write = win_chr_write;
2078     chr->chr_add_read_handler = win_chr_add_read_handler;
2079     return chr;
2080 }
2081
2082 CharDriverState *qemu_chr_open_win_file_out(const char *file_out)
2083 {
2084     HANDLE fd_out;
2085
2086     fd_out = CreateFile(file_out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
2087                         OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
2088     if (fd_out == INVALID_HANDLE_VALUE)
2089         return NULL;
2090
2091     return qemu_chr_open_win_file(fd_out);
2092 }
2093 #endif
2094
2095 CharDriverState *qemu_chr_open(const char *filename)
2096 {
2097     const char *p;
2098
2099     if (!strcmp(filename, "vc")) {
2100         return text_console_init(&display_state);
2101     } else if (!strcmp(filename, "null")) {
2102         return qemu_chr_open_null();
2103     } else
2104 #ifndef _WIN32
2105     if (strstart(filename, "file:", &p)) {
2106         return qemu_chr_open_file_out(p);
2107     } else if (strstart(filename, "pipe:", &p)) {
2108         return qemu_chr_open_pipe(p);
2109     } else if (!strcmp(filename, "pty")) {
2110         return qemu_chr_open_pty();
2111     } else if (!strcmp(filename, "stdio")) {
2112         return qemu_chr_open_stdio();
2113     } else
2114 #endif
2115 #if defined(__linux__)
2116     if (strstart(filename, "/dev/parport", NULL)) {
2117         return qemu_chr_open_pp(filename);
2118     } else
2119     if (strstart(filename, "/dev/", NULL)) {
2120         return qemu_chr_open_tty(filename);
2121     } else
2122 #endif
2123 #ifdef _WIN32
2124     if (strstart(filename, "COM", NULL)) {
2125         return qemu_chr_open_win(filename);
2126     } else
2127     if (strstart(filename, "pipe:", &p)) {
2128         return qemu_chr_open_win_pipe(p);
2129     } else
2130     if (strstart(filename, "file:", &p)) {
2131         return qemu_chr_open_win_file_out(p);
2132     }
2133 #endif
2134     {
2135         return NULL;
2136     }
2137 }
2138
2139 void qemu_chr_close(CharDriverState *chr)
2140 {
2141     if (chr->chr_close)
2142         chr->chr_close(chr);
2143 }
2144
2145 /***********************************************************/
2146 /* network device redirectors */
2147
2148 void hex_dump(FILE *f, const uint8_t *buf, int size)
2149 {
2150     int len, i, j, c;
2151
2152     for(i=0;i<size;i+=16) {
2153         len = size - i;
2154         if (len > 16)
2155             len = 16;
2156         fprintf(f, "%08x ", i);
2157         for(j=0;j<16;j++) {
2158             if (j < len)
2159                 fprintf(f, " %02x", buf[i+j]);
2160             else
2161                 fprintf(f, "   ");
2162         }
2163         fprintf(f, " ");
2164         for(j=0;j<len;j++) {
2165             c = buf[i+j];
2166             if (c < ' ' || c > '~')
2167                 c = '.';
2168             fprintf(f, "%c", c);
2169         }
2170         fprintf(f, "\n");
2171     }
2172 }
2173
2174 static int parse_macaddr(uint8_t *macaddr, const char *p)
2175 {
2176     int i;
2177     for(i = 0; i < 6; i++) {
2178         macaddr[i] = strtol(p, (char **)&p, 16);
2179         if (i == 5) {
2180             if (*p != '\0')
2181                 return -1;
2182         } else {
2183             if (*p != ':')
2184                 return -1;
2185             p++;
2186         }
2187     }
2188     return 0;
2189 }
2190
2191 static int get_str_sep(char *buf, int buf_size, const char **pp, int sep)
2192 {
2193     const char *p, *p1;
2194     int len;
2195     p = *pp;
2196     p1 = strchr(p, sep);
2197     if (!p1)
2198         return -1;
2199     len = p1 - p;
2200     p1++;
2201     if (buf_size > 0) {
2202         if (len > buf_size - 1)
2203             len = buf_size - 1;
2204         memcpy(buf, p, len);
2205         buf[len] = '\0';
2206     }
2207     *pp = p1;
2208     return 0;
2209 }
2210
2211 int parse_host_port(struct sockaddr_in *saddr, const char *str)
2212 {
2213     char buf[512];
2214     struct hostent *he;
2215     const char *p, *r;
2216     int port;
2217
2218     p = str;
2219     if (get_str_sep(buf, sizeof(buf), &p, ':') < 0)
2220         return -1;
2221     saddr->sin_family = AF_INET;
2222     if (buf[0] == '\0') {
2223         saddr->sin_addr.s_addr = 0;
2224     } else {
2225         if (isdigit(buf[0])) {
2226             if (!inet_aton(buf, &saddr->sin_addr))
2227                 return -1;
2228         } else {
2229             if ((he = gethostbyname(buf)) == NULL)
2230                 return - 1;
2231             saddr->sin_addr = *(struct in_addr *)he->h_addr;
2232         }
2233     }
2234     port = strtol(p, (char **)&r, 0);
2235     if (r == p)
2236         return -1;
2237     saddr->sin_port = htons(port);
2238     return 0;
2239 }
2240
2241 /* find or alloc a new VLAN */
2242 VLANState *qemu_find_vlan(int id)
2243 {
2244     VLANState **pvlan, *vlan;
2245     for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
2246         if (vlan->id == id)
2247             return vlan;
2248     }
2249     vlan = qemu_mallocz(sizeof(VLANState));
2250     if (!vlan)
2251         return NULL;
2252     vlan->id = id;
2253     vlan->next = NULL;
2254     pvlan = &first_vlan;
2255     while (*pvlan != NULL)
2256         pvlan = &(*pvlan)->next;
2257     *pvlan = vlan;
2258     return vlan;
2259 }
2260
2261 VLANClientState *qemu_new_vlan_client(VLANState *vlan,
2262                                       IOReadHandler *fd_read,
2263                                       IOCanRWHandler *fd_can_read,
2264                                       void *opaque)
2265 {
2266     VLANClientState *vc, **pvc;
2267     vc = qemu_mallocz(sizeof(VLANClientState));
2268     if (!vc)
2269         return NULL;
2270     vc->fd_read = fd_read;
2271     vc->fd_can_read = fd_can_read;
2272     vc->opaque = opaque;
2273     vc->vlan = vlan;
2274
2275     vc->next = NULL;
2276     pvc = &vlan->first_client;
2277     while (*pvc != NULL)
2278         pvc = &(*pvc)->next;
2279     *pvc = vc;
2280     return vc;
2281 }
2282
2283 int qemu_can_send_packet(VLANClientState *vc1)
2284 {
2285     VLANState *vlan = vc1->vlan;
2286     VLANClientState *vc;
2287
2288     for(vc = vlan->first_client; vc != NULL; vc = vc->next) {
2289         if (vc != vc1) {
2290             if (vc->fd_can_read && !vc->fd_can_read(vc->opaque))
2291                 return 0;
2292         }
2293     }
2294     return 1;
2295 }
2296
2297 void qemu_send_packet(VLANClientState *vc1, const uint8_t *buf, int size)
2298 {
2299     VLANState *vlan = vc1->vlan;
2300     VLANClientState *vc;
2301
2302 #if 0
2303     printf("vlan %d send:\n", vlan->id);
2304     hex_dump(stdout, buf, size);
2305 #endif
2306     for(vc = vlan->first_client; vc != NULL; vc = vc->next) {
2307         if (vc != vc1) {
2308             vc->fd_read(vc->opaque, buf, size);
2309         }
2310     }
2311 }
2312
2313 #if defined(CONFIG_SLIRP)
2314
2315 /* slirp network adapter */
2316
2317 static int slirp_inited;
2318 static VLANClientState *slirp_vc;
2319
2320 int slirp_can_output(void)
2321 {
2322     return !slirp_vc || qemu_can_send_packet(slirp_vc);
2323 }
2324
2325 void slirp_output(const uint8_t *pkt, int pkt_len)
2326 {
2327 #if 0
2328     printf("slirp output:\n");
2329     hex_dump(stdout, pkt, pkt_len);
2330 #endif
2331     if (!slirp_vc)
2332         return;
2333     qemu_send_packet(slirp_vc, pkt, pkt_len);
2334 }
2335
2336 static void slirp_receive(void *opaque, const uint8_t *buf, int size)
2337 {
2338 #if 0
2339     printf("slirp input:\n");
2340     hex_dump(stdout, buf, size);
2341 #endif
2342     slirp_input(buf, size);
2343 }
2344
2345 static int net_slirp_init(VLANState *vlan)
2346 {
2347     if (!slirp_inited) {
2348         slirp_inited = 1;
2349         slirp_init();
2350     }
2351     slirp_vc = qemu_new_vlan_client(vlan,
2352                                     slirp_receive, NULL, NULL);
2353     snprintf(slirp_vc->info_str, sizeof(slirp_vc->info_str), "user redirector");
2354     return 0;
2355 }
2356
2357 static void net_slirp_redir(const char *redir_str)
2358 {
2359     int is_udp;
2360     char buf[256], *r;
2361     const char *p;
2362     struct in_addr guest_addr;
2363     int host_port, guest_port;
2364
2365     if (!slirp_inited) {
2366         slirp_inited = 1;
2367         slirp_init();
2368     }
2369
2370     p = redir_str;
2371     if (get_str_sep(buf, sizeof(buf), &p, ':') < 0)
2372         goto fail;
2373     if (!strcmp(buf, "tcp")) {
2374         is_udp = 0;
2375     } else if (!strcmp(buf, "udp")) {
2376         is_udp = 1;
2377     } else {
2378         goto fail;
2379     }
2380
2381     if (get_str_sep(buf, sizeof(buf), &p, ':') < 0)
2382         goto fail;
2383     host_port = strtol(buf, &r, 0);
2384     if (r == buf)
2385         goto fail;
2386
2387     if (get_str_sep(buf, sizeof(buf), &p, ':') < 0)
2388         goto fail;
2389     if (buf[0] == '\0') {
2390         pstrcpy(buf, sizeof(buf), "10.0.2.15");
2391     }
2392     if (!inet_aton(buf, &guest_addr))
2393         goto fail;
2394
2395     guest_port = strtol(p, &r, 0);
2396     if (r == p)
2397         goto fail;
2398
2399     if (slirp_redir(is_udp, host_port, guest_addr, guest_port) < 0) {
2400         fprintf(stderr, "qemu: could not set up redirection\n");
2401         exit(1);
2402     }
2403     return;
2404  fail:
2405     fprintf(stderr, "qemu: syntax: -redir [tcp|udp]:host-port:[guest-host]:guest-port\n");
2406     exit(1);
2407 }
2408
2409 #ifndef _WIN32
2410
2411 char smb_dir[1024];
2412
2413 static void smb_exit(void)
2414 {
2415     DIR *d;
2416     struct dirent *de;
2417     char filename[1024];
2418
2419     /* erase all the files in the directory */
2420     d = opendir(smb_dir);
2421     for(;;) {
2422         de = readdir(d);
2423         if (!de)
2424             break;
2425         if (strcmp(de->d_name, ".") != 0 &&
2426             strcmp(de->d_name, "..") != 0) {
2427             snprintf(filename, sizeof(filename), "%s/%s",
2428                      smb_dir, de->d_name);
2429             unlink(filename);
2430         }
2431     }
2432     closedir(d);
2433     rmdir(smb_dir);
2434 }
2435
2436 /* automatic user mode samba server configuration */
2437 void net_slirp_smb(const char *exported_dir)
2438 {
2439     char smb_conf[1024];
2440     char smb_cmdline[1024];
2441     FILE *f;
2442
2443     if (!slirp_inited) {
2444         slirp_inited = 1;
2445         slirp_init();
2446     }
2447
2448     /* XXX: better tmp dir construction */
2449     snprintf(smb_dir, sizeof(smb_dir), "/tmp/qemu-smb.%d", getpid());
2450     if (mkdir(smb_dir, 0700) < 0) {
2451         fprintf(stderr, "qemu: could not create samba server dir '%s'\n", smb_dir);
2452         exit(1);
2453     }
2454     snprintf(smb_conf, sizeof(smb_conf), "%s/%s", smb_dir, "smb.conf");
2455
2456     f = fopen(smb_conf, "w");
2457     if (!f) {
2458         fprintf(stderr, "qemu: could not create samba server configuration file '%s'\n", smb_conf);
2459         exit(1);
2460     }
2461     fprintf(f,
2462             "[global]\n"
2463             "private dir=%s\n"
2464             "smb ports=0\n"
2465             "socket address=127.0.0.1\n"
2466             "pid directory=%s\n"
2467             "lock directory=%s\n"
2468             "log file=%s/log.smbd\n"
2469             "smb passwd file=%s/smbpasswd\n"
2470             "security = share\n"
2471             "[qemu]\n"
2472             "path=%s\n"
2473             "read only=no\n"
2474             "guest ok=yes\n",
2475             smb_dir,
2476             smb_dir,
2477             smb_dir,
2478             smb_dir,
2479             smb_dir,
2480             exported_dir
2481             );
2482     fclose(f);
2483     atexit(smb_exit);
2484
2485     snprintf(smb_cmdline, sizeof(smb_cmdline), "/usr/sbin/smbd -s %s",
2486              smb_conf);
2487
2488     slirp_add_exec(0, smb_cmdline, 4, 139);
2489 }
2490
2491 #endif /* !defined(_WIN32) */
2492
2493 #endif /* CONFIG_SLIRP */
2494
2495 #if !defined(_WIN32)
2496
2497 typedef struct TAPState {
2498     VLANClientState *vc;
2499     int fd;
2500 } TAPState;
2501
2502 static void tap_receive(void *opaque, const uint8_t *buf, int size)
2503 {
2504     TAPState *s = opaque;
2505     int ret;
2506     for(;;) {
2507         ret = write(s->fd, buf, size);
2508         if (ret < 0 && (errno == EINTR || errno == EAGAIN)) {
2509         } else {
2510             break;
2511         }
2512     }
2513 }
2514
2515 static void tap_send(void *opaque)
2516 {
2517     TAPState *s = opaque;
2518     uint8_t buf[4096];
2519     int size;
2520
2521     size = read(s->fd, buf, sizeof(buf));
2522     if (size > 0) {
2523         qemu_send_packet(s->vc, buf, size);
2524     }
2525 }
2526
2527 /* fd support */
2528
2529 static TAPState *net_tap_fd_init(VLANState *vlan, int fd)
2530 {
2531     TAPState *s;
2532
2533     s = qemu_mallocz(sizeof(TAPState));
2534     if (!s)
2535         return NULL;
2536     s->fd = fd;
2537     s->vc = qemu_new_vlan_client(vlan, tap_receive, NULL, s);
2538     qemu_set_fd_handler(s->fd, tap_send, NULL, s);
2539     snprintf(s->vc->info_str, sizeof(s->vc->info_str), "tap: fd=%d", fd);
2540     return s;
2541 }
2542
2543 #ifdef _BSD
2544 static int tap_open(char *ifname, int ifname_size)
2545 {
2546     int fd;
2547     char *dev;
2548     struct stat s;
2549
2550     fd = open("/dev/tap", O_RDWR);
2551     if (fd < 0) {
2552         fprintf(stderr, "warning: could not open /dev/tap: no virtual network emulation\n");
2553         return -1;
2554     }
2555
2556     fstat(fd, &s);
2557     dev = devname(s.st_rdev, S_IFCHR);
2558     pstrcpy(ifname, ifname_size, dev);
2559
2560     fcntl(fd, F_SETFL, O_NONBLOCK);
2561     return fd;
2562 }
2563 #else
2564 static int tap_open(char *ifname, int ifname_size)
2565 {
2566     struct ifreq ifr;
2567     int fd, ret;
2568
2569     fd = open("/dev/net/tun", O_RDWR);
2570     if (fd < 0) {
2571         fprintf(stderr, "warning: could not open /dev/net/tun: no virtual network emulation\n");
2572         return -1;
2573     }
2574     memset(&ifr, 0, sizeof(ifr));
2575     ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
2576     if (ifname[0] != '\0')
2577         pstrcpy(ifr.ifr_name, IFNAMSIZ, ifname);
2578     else
2579         pstrcpy(ifr.ifr_name, IFNAMSIZ, "tap%d");
2580     ret = ioctl(fd, TUNSETIFF, (void *) &ifr);
2581     if (ret != 0) {
2582         fprintf(stderr, "warning: could not configure /dev/net/tun: no virtual network emulation\n");
2583         close(fd);
2584         return -1;
2585     }
2586     pstrcpy(ifname, ifname_size, ifr.ifr_name);
2587     fcntl(fd, F_SETFL, O_NONBLOCK);
2588     return fd;
2589 }
2590 #endif
2591
2592 static int net_tap_init(VLANState *vlan, const char *ifname1,
2593                         const char *setup_script)
2594 {
2595     TAPState *s;
2596     int pid, status, fd;
2597     char *args[3];
2598     char **parg;
2599     char ifname[128];
2600
2601     if (ifname1 != NULL)
2602         pstrcpy(ifname, sizeof(ifname), ifname1);
2603     else
2604         ifname[0] = '\0';
2605     fd = tap_open(ifname, sizeof(ifname));
2606     if (fd < 0)
2607         return -1;
2608
2609     if (!setup_script)
2610         setup_script = "";
2611     if (setup_script[0] != '\0') {
2612         /* try to launch network init script */
2613         pid = fork();
2614         if (pid >= 0) {
2615             if (pid == 0) {
2616                 parg = args;
2617                 *parg++ = (char *)setup_script;
2618                 *parg++ = ifname;
2619                 *parg++ = NULL;
2620                 execv(setup_script, args);
2621                 _exit(1);
2622             }
2623             while (waitpid(pid, &status, 0) != pid);
2624             if (!WIFEXITED(status) ||
2625                 WEXITSTATUS(status) != 0) {
2626                 fprintf(stderr, "%s: could not launch network script\n",
2627                         setup_script);
2628                 return -1;
2629             }
2630         }
2631     }
2632     s = net_tap_fd_init(vlan, fd);
2633     if (!s)
2634         return -1;
2635     snprintf(s->vc->info_str, sizeof(s->vc->info_str),
2636              "tap: ifname=%s setup_script=%s", ifname, setup_script);
2637     return 0;
2638 }
2639
2640 #endif /* !_WIN32 */
2641
2642 /* network connection */
2643 typedef struct NetSocketState {
2644     VLANClientState *vc;
2645     int fd;
2646     int state; /* 0 = getting length, 1 = getting data */
2647     int index;
2648     int packet_len;
2649     uint8_t buf[4096];
2650     struct sockaddr_in dgram_dst; /* contains inet host and port destination iff connectionless (SOCK_DGRAM) */
2651 } NetSocketState;
2652
2653 typedef struct NetSocketListenState {
2654     VLANState *vlan;
2655     int fd;
2656 } NetSocketListenState;
2657
2658 /* XXX: we consider we can send the whole packet without blocking */
2659 static void net_socket_receive(void *opaque, const uint8_t *buf, int size)
2660 {
2661     NetSocketState *s = opaque;
2662     uint32_t len;
2663     len = htonl(size);
2664
2665     send_all(s->fd, (const uint8_t *)&len, sizeof(len));
2666     send_all(s->fd, buf, size);
2667 }
2668
2669 static void net_socket_receive_dgram(void *opaque, const uint8_t *buf, int size)
2670 {
2671     NetSocketState *s = opaque;
2672     sendto(s->fd, buf, size, 0,
2673            (struct sockaddr *)&s->dgram_dst, sizeof(s->dgram_dst));
2674 }
2675
2676 static void net_socket_send(void *opaque)
2677 {
2678     NetSocketState *s = opaque;
2679     int l, size, err;
2680     uint8_t buf1[4096];
2681     const uint8_t *buf;
2682
2683     size = recv(s->fd, buf1, sizeof(buf1), 0);
2684     if (size < 0) {
2685         err = socket_error();
2686         if (err != EWOULDBLOCK)
2687             goto eoc;
2688     } else if (size == 0) {
2689         /* end of connection */
2690     eoc:
2691         qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
2692         closesocket(s->fd);
2693         return;
2694     }
2695     buf = buf1;
2696     while (size > 0) {
2697         /* reassemble a packet from the network */
2698         switch(s->state) {
2699         case 0:
2700             l = 4 - s->index;
2701             if (l > size)
2702                 l = size;
2703             memcpy(s->buf + s->index, buf, l);
2704             buf += l;
2705             size -= l;
2706             s->index += l;
2707             if (s->index == 4) {
2708                 /* got length */
2709                 s->packet_len = ntohl(*(uint32_t *)s->buf);
2710                 s->index = 0;
2711                 s->state = 1;
2712             }
2713             break;
2714         case 1:
2715             l = s->packet_len - s->index;
2716             if (l > size)
2717                 l = size;
2718             memcpy(s->buf + s->index, buf, l);
2719             s->index += l;
2720             buf += l;
2721             size -= l;
2722             if (s->index >= s->packet_len) {
2723                 qemu_send_packet(s->vc, s->buf, s->packet_len);
2724                 s->index = 0;
2725                 s->state = 0;
2726             }
2727             break;
2728         }
2729     }
2730 }
2731
2732 static void net_socket_send_dgram(void *opaque)
2733 {
2734     NetSocketState *s = opaque;
2735     int size;
2736
2737     size = recv(s->fd, s->buf, sizeof(s->buf), 0);
2738     if (size < 0)
2739         return;
2740     if (size == 0) {
2741         /* end of connection */
2742         qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
2743         return;
2744     }
2745     qemu_send_packet(s->vc, s->buf, size);
2746 }
2747
2748 static int net_socket_mcast_create(struct sockaddr_in *mcastaddr)
2749 {
2750     struct ip_mreq imr;
2751     int fd;
2752     int val, ret;
2753     if (!IN_MULTICAST(ntohl(mcastaddr->sin_addr.s_addr))) {
2754         fprintf(stderr, "qemu: error: specified mcastaddr \"%s\" (0x%08x) does not contain a multicast address\n",
2755                 inet_ntoa(mcastaddr->sin_addr),
2756                 (int)ntohl(mcastaddr->sin_addr.s_addr));
2757         return -1;
2758
2759     }
2760     fd = socket(PF_INET, SOCK_DGRAM, 0);
2761     if (fd < 0) {
2762         perror("socket(PF_INET, SOCK_DGRAM)");
2763         return -1;
2764     }
2765
2766     val = 1;
2767     ret=setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
2768                    (const char *)&val, sizeof(val));
2769     if (ret < 0) {
2770         perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)");
2771         goto fail;
2772     }
2773
2774     ret = bind(fd, (struct sockaddr *)mcastaddr, sizeof(*mcastaddr));
2775     if (ret < 0) {
2776         perror("bind");
2777         goto fail;
2778     }
2779
2780     /* Add host to multicast group */
2781     imr.imr_multiaddr = mcastaddr->sin_addr;
2782     imr.imr_interface.s_addr = htonl(INADDR_ANY);
2783
2784     ret = setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP,
2785                      (const char *)&imr, sizeof(struct ip_mreq));
2786     if (ret < 0) {
2787         perror("setsockopt(IP_ADD_MEMBERSHIP)");
2788         goto fail;
2789     }
2790
2791     /* Force mcast msgs to loopback (eg. several QEMUs in same host */
2792     val = 1;
2793     ret=setsockopt(fd, IPPROTO_IP, IP_MULTICAST_LOOP,
2794                    (const char *)&val, sizeof(val));
2795     if (ret < 0) {
2796         perror("setsockopt(SOL_IP, IP_MULTICAST_LOOP)");
2797         goto fail;
2798     }
2799
2800     socket_set_nonblock(fd);
2801     return fd;
2802 fail:
2803     if (fd>=0) close(fd);
2804     return -1;
2805 }
2806
2807 static NetSocketState *net_socket_fd_init_dgram(VLANState *vlan, int fd,
2808                                           int is_connected)
2809 {
2810     struct sockaddr_in saddr;
2811     int newfd;
2812     socklen_t saddr_len;
2813     NetSocketState *s;
2814
2815     /* fd passed: multicast: "learn" dgram_dst address from bound address and save it
2816      * Because this may be "shared" socket from a "master" process, datagrams would be recv()
2817      * by ONLY ONE process: we must "clone" this dgram socket --jjo
2818      */
2819
2820     if (is_connected) {
2821         if (getsockname(fd, (struct sockaddr *) &saddr, &saddr_len) == 0) {
2822             /* must be bound */
2823             if (saddr.sin_addr.s_addr==0) {
2824                 fprintf(stderr, "qemu: error: init_dgram: fd=%d unbound, cannot setup multicast dst addr\n",
2825                         fd);
2826                 return NULL;
2827             }
2828             /* clone dgram socket */
2829             newfd = net_socket_mcast_create(&saddr);
2830             if (newfd < 0) {
2831                 /* error already reported by net_socket_mcast_create() */
2832                 close(fd);
2833                 return NULL;
2834             }
2835             /* clone newfd to fd, close newfd */
2836             dup2(newfd, fd);
2837             close(newfd);
2838
2839         } else {
2840             fprintf(stderr, "qemu: error: init_dgram: fd=%d failed getsockname(): %s\n",
2841                     fd, strerror(errno));
2842             return NULL;
2843         }
2844     }
2845
2846     s = qemu_mallocz(sizeof(NetSocketState));
2847     if (!s)
2848         return NULL;
2849     s->fd = fd;
2850
2851     s->vc = qemu_new_vlan_client(vlan, net_socket_receive_dgram, NULL, s);
2852     qemu_set_fd_handler(s->fd, net_socket_send_dgram, NULL, s);
2853
2854     /* mcast: save bound address as dst */
2855     if (is_connected) s->dgram_dst=saddr;
2856
2857     snprintf(s->vc->info_str, sizeof(s->vc->info_str),
2858             "socket: fd=%d (%s mcast=%s:%d)",
2859             fd, is_connected? "cloned" : "",
2860             inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
2861     return s;
2862 }
2863
2864 static void net_socket_connect(void *opaque)
2865 {
2866     NetSocketState *s = opaque;
2867     qemu_set_fd_handler(s->fd, net_socket_send, NULL, s);
2868 }
2869
2870 static NetSocketState *net_socket_fd_init_stream(VLANState *vlan, int fd,
2871                                           int is_connected)
2872 {
2873     NetSocketState *s;
2874     s = qemu_mallocz(sizeof(NetSocketState));
2875     if (!s)
2876         return NULL;
2877     s->fd = fd;
2878     s->vc = qemu_new_vlan_client(vlan,
2879                                  net_socket_receive, NULL, s);
2880     snprintf(s->vc->info_str, sizeof(s->vc->info_str),
2881              "socket: fd=%d", fd);
2882     if (is_connected) {
2883         net_socket_connect(s);
2884     } else {
2885         qemu_set_fd_handler(s->fd, NULL, net_socket_connect, s);
2886     }
2887     return s;
2888 }
2889
2890 static NetSocketState *net_socket_fd_init(VLANState *vlan, int fd,
2891                                           int is_connected)
2892 {
2893     int so_type=-1, optlen=sizeof(so_type);
2894
2895     if(getsockopt(fd, SOL_SOCKET, SO_TYPE, (char *)&so_type, &optlen)< 0) {
2896         fprintf(stderr, "qemu: error: setsockopt(SO_TYPE) for fd=%d failed\n", fd);
2897         return NULL;
2898     }
2899     switch(so_type) {
2900     case SOCK_DGRAM:
2901         return net_socket_fd_init_dgram(vlan, fd, is_connected);
2902     case SOCK_STREAM:
2903         return net_socket_fd_init_stream(vlan, fd, is_connected);
2904     default:
2905         /* who knows ... this could be a eg. a pty, do warn and continue as stream */
2906         fprintf(stderr, "qemu: warning: socket type=%d for fd=%d is not SOCK_DGRAM or SOCK_STREAM\n", so_type, fd);
2907         return net_socket_fd_init_stream(vlan, fd, is_connected);
2908     }
2909     return NULL;
2910 }
2911
2912 static void net_socket_accept(void *opaque)
2913 {
2914     NetSocketListenState *s = opaque;
2915     NetSocketState *s1;
2916     struct sockaddr_in saddr;
2917     socklen_t len;
2918     int fd;
2919
2920     for(;;) {
2921         len = sizeof(saddr);
2922         fd = accept(s->fd, (struct sockaddr *)&saddr, &len);
2923         if (fd < 0 && errno != EINTR) {
2924             return;
2925         } else if (fd >= 0) {
2926             break;
2927         }
2928     }
2929     s1 = net_socket_fd_init(s->vlan, fd, 1);
2930     if (!s1) {
2931         close(fd);
2932     } else {
2933         snprintf(s1->vc->info_str, sizeof(s1->vc->info_str),
2934                  "socket: connection from %s:%d",
2935                  inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
2936     }
2937 }
2938
2939 static int net_socket_listen_init(VLANState *vlan, const char *host_str)
2940 {
2941     NetSocketListenState *s;
2942     int fd, val, ret;
2943     struct sockaddr_in saddr;
2944
2945     if (parse_host_port(&saddr, host_str) < 0)
2946         return -1;
2947
2948     s = qemu_mallocz(sizeof(NetSocketListenState));
2949     if (!s)
2950         return -1;
2951
2952     fd = socket(PF_INET, SOCK_STREAM, 0);
2953     if (fd < 0) {
2954         perror("socket");
2955         return -1;
2956     }
2957     socket_set_nonblock(fd);
2958
2959     /* allow fast reuse */
2960     val = 1;
2961     setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (const char *)&val, sizeof(val));
2962
2963     ret = bind(fd, (struct sockaddr *)&saddr, sizeof(saddr));
2964     if (ret < 0) {
2965         perror("bind");
2966         return -1;
2967     }
2968     ret = listen(fd, 0);
2969     if (ret < 0) {
2970         perror("listen");
2971         return -1;
2972     }
2973     s->vlan = vlan;
2974     s->fd = fd;
2975     qemu_set_fd_handler(fd, net_socket_accept, NULL, s);
2976     return 0;
2977 }
2978
2979 static int net_socket_connect_init(VLANState *vlan, const char *host_str)
2980 {
2981     NetSocketState *s;
2982     int fd, connected, ret, err;
2983     struct sockaddr_in saddr;
2984
2985     if (parse_host_port(&saddr, host_str) < 0)
2986         return -1;
2987
2988     fd = socket(PF_INET, SOCK_STREAM, 0);
2989     if (fd < 0) {
2990         perror("socket");
2991         return -1;
2992     }
2993     socket_set_nonblock(fd);
2994
2995     connected = 0;
2996     for(;;) {
2997         ret = connect(fd, (struct sockaddr *)&saddr, sizeof(saddr));
2998         if (ret < 0) {
2999             err = socket_error();
3000             if (err == EINTR || err == EWOULDBLOCK) {
3001             } else if (err == EINPROGRESS) {
3002                 break;
3003             } else {
3004                 perror("connect");
3005                 closesocket(fd);
3006                 return -1;
3007             }
3008         } else {
3009             connected = 1;
3010             break;
3011         }
3012     }
3013     s = net_socket_fd_init(vlan, fd, connected);
3014     if (!s)
3015         return -1;
3016     snprintf(s->vc->info_str, sizeof(s->vc->info_str),
3017              "socket: connect to %s:%d",
3018              inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
3019     return 0;
3020 }
3021
3022 static int net_socket_mcast_init(VLANState *vlan, const char *host_str)
3023 {
3024     NetSocketState *s;
3025     int fd;
3026     struct sockaddr_in saddr;
3027
3028     if (parse_host_port(&saddr, host_str) < 0)
3029         return -1;
3030
3031
3032     fd = net_socket_mcast_create(&saddr);
3033     if (fd < 0)
3034         return -1;
3035
3036     s = net_socket_fd_init(vlan, fd, 0);
3037     if (!s)
3038         return -1;
3039
3040     s->dgram_dst = saddr;
3041
3042     snprintf(s->vc->info_str, sizeof(s->vc->info_str),
3043              "socket: mcast=%s:%d",
3044              inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
3045     return 0;
3046
3047 }
3048
3049 static int get_param_value(char *buf, int buf_size,
3050                            const char *tag, const char *str)
3051 {
3052     const char *p;
3053     char *q;
3054     char option[128];
3055
3056     p = str;
3057     for(;;) {
3058         q = option;
3059         while (*p != '\0' && *p != '=') {
3060             if ((q - option) < sizeof(option) - 1)
3061                 *q++ = *p;
3062             p++;
3063         }
3064         *q = '\0';
3065         if (*p != '=')
3066             break;
3067         p++;
3068         if (!strcmp(tag, option)) {
3069             q = buf;
3070             while (*p != '\0' && *p != ',') {
3071                 if ((q - buf) < buf_size - 1)
3072                     *q++ = *p;
3073                 p++;
3074             }
3075             *q = '\0';
3076             return q - buf;
3077         } else {
3078             while (*p != '\0' && *p != ',') {
3079                 p++;
3080             }
3081         }
3082         if (*p != ',')
3083             break;
3084         p++;
3085     }
3086     return 0;
3087 }
3088
3089 int net_client_init(const char *str)
3090 {
3091     const char *p;
3092     char *q;
3093     char device[64];
3094     char buf[1024];
3095     int vlan_id, ret;
3096     VLANState *vlan;
3097
3098     p = str;
3099     q = device;
3100     while (*p != '\0' && *p != ',') {
3101         if ((q - device) < sizeof(device) - 1)
3102             *q++ = *p;
3103         p++;
3104     }
3105     *q = '\0';
3106     if (*p == ',')
3107         p++;
3108     vlan_id = 0;
3109     if (get_param_value(buf, sizeof(buf), "vlan", p)) {
3110         vlan_id = strtol(buf, NULL, 0);
3111     }
3112     vlan = qemu_find_vlan(vlan_id);
3113     if (!vlan) {
3114         fprintf(stderr, "Could not create vlan %d\n", vlan_id);
3115         return -1;
3116     }
3117     if (!strcmp(device, "nic")) {
3118         NICInfo *nd;
3119         uint8_t *macaddr;
3120
3121         if (nb_nics >= MAX_NICS) {
3122             fprintf(stderr, "Too Many NICs\n");
3123             return -1;
3124         }
3125         nd = &nd_table[nb_nics];
3126         macaddr = nd->macaddr;
3127         macaddr[0] = 0x52;
3128         macaddr[1] = 0x54;
3129         macaddr[2] = 0x00;
3130         macaddr[3] = 0x12;
3131         macaddr[4] = 0x34;
3132         macaddr[5] = 0x56 + nb_nics;
3133
3134         if (get_param_value(buf, sizeof(buf), "macaddr", p)) {
3135             if (parse_macaddr(macaddr, buf) < 0) {
3136                 fprintf(stderr, "invalid syntax for ethernet address\n");
3137                 return -1;
3138             }
3139         }
3140         if (get_param_value(buf, sizeof(buf), "model", p)) {
3141             nd->model = strdup(buf);
3142         }
3143         nd->vlan = vlan;
3144         nb_nics++;
3145         ret = 0;
3146     } else
3147     if (!strcmp(device, "none")) {
3148         /* does nothing. It is needed to signal that no network cards
3149            are wanted */
3150         ret = 0;
3151     } else
3152 #ifdef CONFIG_SLIRP
3153     if (!strcmp(device, "user")) {
3154         if (get_param_value(buf, sizeof(buf), "hostname", p)) {
3155             if (strlen(buf) > 32)
3156               buf[32] = 0;
3157             strcpy(slirp_hostname, buf);
3158         }
3159         ret = net_slirp_init(vlan);
3160     } else
3161 #endif
3162 #ifdef _WIN32
3163     if (!strcmp(device, "tap")) {
3164         char ifname[64];
3165         if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) {
3166             fprintf(stderr, "tap: no interface name\n");
3167             return -1;
3168         }
3169         ret = tap_win32_init(vlan, ifname);
3170     } else
3171 #else
3172     if (!strcmp(device, "tap")) {
3173         char ifname[64];
3174         char setup_script[1024];
3175         int fd;
3176         if (get_param_value(buf, sizeof(buf), "fd", p) > 0) {
3177             fd = strtol(buf, NULL, 0);
3178             ret = -1;
3179             if (net_tap_fd_init(vlan, fd))
3180                 ret = 0;
3181         } else {
3182             get_param_value(ifname, sizeof(ifname), "ifname", p);
3183             if (get_param_value(setup_script, sizeof(setup_script), "script", p) == 0) {
3184                 pstrcpy(setup_script, sizeof(setup_script), DEFAULT_NETWORK_SCRIPT);
3185             }
3186             ret = net_tap_init(vlan, ifname, setup_script);
3187         }
3188     } else
3189 #endif
3190     if (!strcmp(device, "socket")) {
3191         if (get_param_value(buf, sizeof(buf), "fd", p) > 0) {
3192             int fd;
3193             fd = strtol(buf, NULL, 0);
3194             ret = -1;
3195             if (net_socket_fd_init(vlan, fd, 1))
3196                 ret = 0;
3197         } else if (get_param_value(buf, sizeof(buf), "listen", p) > 0) {
3198             ret = net_socket_listen_init(vlan, buf);
3199         } else if (get_param_value(buf, sizeof(buf), "connect", p) > 0) {
3200             ret = net_socket_connect_init(vlan, buf);
3201         } else if (get_param_value(buf, sizeof(buf), "mcast", p) > 0) {
3202             ret = net_socket_mcast_init(vlan, buf);
3203         } else {
3204             fprintf(stderr, "Unknown socket options: %s\n", p);
3205             return -1;
3206         }
3207     } else
3208     {
3209         fprintf(stderr, "Unknown network device: %s\n", device);
3210         return -1;
3211     }
3212     if (ret < 0) {
3213         fprintf(stderr, "Could not initialize device '%s'\n", device);
3214     }
3215
3216     return ret;
3217 }
3218
3219 void do_info_network(void)
3220 {
3221     VLANState *vlan;
3222     VLANClientState *vc;
3223
3224     for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
3225         term_printf("VLAN %d devices:\n", vlan->id);
3226         for(vc = vlan->first_client; vc != NULL; vc = vc->next)
3227             term_printf("  %s\n", vc->info_str);
3228     }
3229 }
3230
3231 /***********************************************************/
3232 /* USB devices */
3233
3234 static int usb_device_add(const char *devname)
3235 {
3236     const char *p;
3237     USBDevice *dev;
3238     int i;
3239
3240     if (!vm_usb_hub)
3241         return -1;
3242     for(i = 0;i < MAX_VM_USB_PORTS; i++) {
3243         if (!vm_usb_ports[i]->dev)
3244             break;
3245     }
3246     if (i == MAX_VM_USB_PORTS)
3247         return -1;
3248
3249     if (strstart(devname, "host:", &p)) {
3250         dev = usb_host_device_open(p);
3251         if (!dev)
3252             return -1;
3253     } else if (!strcmp(devname, "mouse")) {
3254         dev = usb_mouse_init();
3255         if (!dev)
3256             return -1;
3257     } else if (!strcmp(devname, "tablet")) {
3258         dev = usb_tablet_init();
3259         if (!dev)
3260             return -1;
3261     } else {
3262         return -1;
3263     }
3264     usb_attach(vm_usb_ports[i], dev);
3265     return 0;
3266 }
3267
3268 static int usb_device_del(const char *devname)
3269 {
3270     USBDevice *dev;
3271     int bus_num, addr, i;
3272     const char *p;
3273
3274     if (!vm_usb_hub)
3275         return -1;
3276
3277     p = strchr(devname, '.');
3278     if (!p)
3279         return -1;
3280     bus_num = strtoul(devname, NULL, 0);
3281     addr = strtoul(p + 1, NULL, 0);
3282     if (bus_num != 0)
3283         return -1;
3284     for(i = 0;i < MAX_VM_USB_PORTS; i++) {
3285         dev = vm_usb_ports[i]->dev;
3286         if (dev && dev->addr == addr)
3287             break;
3288     }
3289     if (i == MAX_VM_USB_PORTS)
3290         return -1;
3291     usb_attach(vm_usb_ports[i], NULL);
3292     return 0;
3293 }
3294
3295 void do_usb_add(const char *devname)
3296 {
3297     int ret;
3298     ret = usb_device_add(devname);
3299     if (ret < 0)
3300         term_printf("Could not add USB device '%s'\n", devname);
3301 }
3302
3303 void do_usb_del(const char *devname)
3304 {
3305     int ret;
3306     ret = usb_device_del(devname);
3307     if (ret < 0)
3308         term_printf("Could not remove USB device '%s'\n", devname);
3309 }
3310
3311 void usb_info(void)
3312 {
3313     USBDevice *dev;
3314     int i;
3315     const char *speed_str;
3316
3317     if (!vm_usb_hub) {
3318         term_printf("USB support not enabled\n");
3319         return;
3320     }
3321
3322     for(i = 0; i < MAX_VM_USB_PORTS; i++) {
3323         dev = vm_usb_ports[i]->dev;
3324         if (dev) {
3325             term_printf("Hub port %d:\n", i);
3326             switch(dev->speed) {
3327             case USB_SPEED_LOW:
3328                 speed_str = "1.5";
3329                 break;
3330             case USB_SPEED_FULL:
3331                 speed_str = "12";
3332                 break;
3333             case USB_SPEED_HIGH:
3334                 speed_str = "480";
3335                 break;
3336             default:
3337                 speed_str = "?";
3338                 break;
3339             }
3340             term_printf("  Device %d.%d, speed %s Mb/s\n",
3341                         0, dev->addr, speed_str);
3342         }
3343     }
3344 }
3345
3346 /***********************************************************/
3347 /* pid file */
3348
3349 static char *pid_filename;
3350
3351 /* Remove PID file. Called on normal exit */
3352
3353 static void remove_pidfile(void)
3354 {
3355     unlink (pid_filename);
3356 }
3357
3358 static void create_pidfile(const char *filename)
3359 {
3360     struct stat pidstat;
3361     FILE *f;
3362
3363     /* Try to write our PID to the named file */
3364     if (stat(filename, &pidstat) < 0) {
3365         if (errno == ENOENT) {
3366             if ((f = fopen (filename, "w")) == NULL) {
3367                 perror("Opening pidfile");
3368                 exit(1);
3369             }
3370             fprintf(f, "%d\n", getpid());
3371             fclose(f);
3372             pid_filename = qemu_strdup(filename);
3373             if (!pid_filename) {
3374                 fprintf(stderr, "Could not save PID filename");
3375                 exit(1);
3376             }
3377             atexit(remove_pidfile);
3378         }
3379     } else {
3380         fprintf(stderr, "%s already exists. Remove it and try again.\n",
3381                 filename);
3382         exit(1);
3383     }
3384 }
3385
3386 /***********************************************************/
3387 /* dumb display */
3388
3389 static void dumb_update(DisplayState *ds, int x, int y, int w, int h)
3390 {
3391 }
3392
3393 static void dumb_resize(DisplayState *ds, int w, int h)
3394 {
3395 }
3396
3397 static void dumb_refresh(DisplayState *ds)
3398 {
3399     vga_hw_update();
3400 }
3401
3402 void dumb_display_init(DisplayState *ds)
3403 {
3404     ds->data = NULL;
3405     ds->linesize = 0;
3406     ds->depth = 0;
3407     ds->dpy_update = dumb_update;
3408     ds->dpy_resize = dumb_resize;
3409     ds->dpy_refresh = dumb_refresh;
3410 }
3411
3412 #if !defined(CONFIG_SOFTMMU)
3413 /***********************************************************/
3414 /* cpu signal handler */
3415 static void host_segv_handler(int host_signum, siginfo_t *info,
3416                               void *puc)
3417 {
3418     if (cpu_signal_handler(host_signum, info, puc))
3419         return;
3420     if (stdio_nb_clients > 0)
3421         term_exit();
3422     abort();
3423 }
3424 #endif
3425
3426 /***********************************************************/
3427 /* I/O handling */
3428
3429 #define MAX_IO_HANDLERS 64
3430
3431 typedef struct IOHandlerRecord {
3432     int fd;
3433     IOCanRWHandler *fd_read_poll;
3434     IOHandler *fd_read;
3435     IOHandler *fd_write;
3436     void *opaque;
3437     /* temporary data */
3438     struct pollfd *ufd;
3439     struct IOHandlerRecord *next;
3440 } IOHandlerRecord;
3441
3442 static IOHandlerRecord *first_io_handler;
3443
3444 /* XXX: fd_read_poll should be suppressed, but an API change is
3445    necessary in the character devices to suppress fd_can_read(). */
3446 int qemu_set_fd_handler2(int fd,
3447                          IOCanRWHandler *fd_read_poll,
3448                          IOHandler *fd_read,
3449                          IOHandler *fd_write,
3450                          void *opaque)
3451 {
3452     IOHandlerRecord **pioh, *ioh;
3453
3454     if (!fd_read && !fd_write) {
3455         pioh = &first_io_handler;
3456         for(;;) {
3457             ioh = *pioh;
3458             if (ioh == NULL)
3459                 break;
3460             if (ioh->fd == fd) {
3461                 *pioh = ioh->next;
3462                 qemu_free(ioh);
3463                 break;
3464             }
3465             pioh = &ioh->next;
3466         }
3467     } else {
3468         for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
3469             if (ioh->fd == fd)
3470                 goto found;
3471         }
3472         ioh = qemu_mallocz(sizeof(IOHandlerRecord));
3473         if (!ioh)
3474             return -1;
3475         ioh->next = first_io_handler;
3476         first_io_handler = ioh;
3477     found:
3478         ioh->fd = fd;
3479         ioh->fd_read_poll = fd_read_poll;
3480         ioh->fd_read = fd_read;
3481         ioh->fd_write = fd_write;
3482         ioh->opaque = opaque;
3483     }
3484     return 0;
3485 }
3486
3487 int qemu_set_fd_handler(int fd,
3488                         IOHandler *fd_read,
3489                         IOHandler *fd_write,
3490                         void *opaque)
3491 {
3492     return qemu_set_fd_handler2(fd, NULL, fd_read, fd_write, opaque);
3493 }
3494
3495 /***********************************************************/
3496 /* Polling handling */
3497
3498 typedef struct PollingEntry {
3499     PollingFunc *func;
3500     void *opaque;
3501     struct PollingEntry *next;
3502 } PollingEntry;
3503
3504 static PollingEntry *first_polling_entry;
3505
3506 int qemu_add_polling_cb(PollingFunc *func, void *opaque)
3507 {
3508     PollingEntry **ppe, *pe;
3509     pe = qemu_mallocz(sizeof(PollingEntry));
3510     if (!pe)
3511         return -1;
3512     pe->func = func;
3513     pe->opaque = opaque;
3514     for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next);
3515     *ppe = pe;
3516     return 0;
3517 }
3518
3519 void qemu_del_polling_cb(PollingFunc *func, void *opaque)
3520 {
3521     PollingEntry **ppe, *pe;
3522     for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next) {
3523         pe = *ppe;
3524         if (pe->func == func && pe->opaque == opaque) {
3525             *ppe = pe->next;
3526             qemu_free(pe);
3527             break;
3528         }
3529     }
3530 }
3531
3532 /***********************************************************/
3533 /* savevm/loadvm support */
3534
3535 void qemu_put_buffer(QEMUFile *f, const uint8_t *buf, int size)
3536 {
3537     fwrite(buf, 1, size, f);
3538 }
3539
3540 void qemu_put_byte(QEMUFile *f, int v)
3541 {
3542     fputc(v, f);
3543 }
3544
3545 void qemu_put_be16(QEMUFile *f, unsigned int v)
3546 {
3547     qemu_put_byte(f, v >> 8);
3548     qemu_put_byte(f, v);
3549 }
3550
3551 void qemu_put_be32(QEMUFile *f, unsigned int v)
3552 {
3553     qemu_put_byte(f, v >> 24);
3554     qemu_put_byte(f, v >> 16);
3555     qemu_put_byte(f, v >> 8);
3556     qemu_put_byte(f, v);
3557 }
3558
3559 void qemu_put_be64(QEMUFile *f, uint64_t v)
3560 {
3561     qemu_put_be32(f, v >> 32);
3562     qemu_put_be32(f, v);
3563 }
3564
3565 int qemu_get_buffer(QEMUFile *f, uint8_t *buf, int size)
3566 {
3567     return fread(buf, 1, size, f);
3568 }
3569
3570 int qemu_get_byte(QEMUFile *f)
3571 {
3572     int v;
3573     v = fgetc(f);
3574     if (v == EOF)
3575         return 0;
3576     else
3577         return v;
3578 }
3579
3580 unsigned int qemu_get_be16(QEMUFile *f)
3581 {
3582     unsigned int v;
3583     v = qemu_get_byte(f) << 8;
3584     v |= qemu_get_byte(f);
3585     return v;
3586 }
3587
3588 unsigned int qemu_get_be32(QEMUFile *f)
3589 {
3590     unsigned int v;
3591     v = qemu_get_byte(f) << 24;
3592     v |= qemu_get_byte(f) << 16;
3593     v |= qemu_get_byte(f) << 8;
3594     v |= qemu_get_byte(f);
3595     return v;
3596 }
3597
3598 uint64_t qemu_get_be64(QEMUFile *f)
3599 {
3600     uint64_t v;
3601     v = (uint64_t)qemu_get_be32(f) << 32;
3602     v |= qemu_get_be32(f);
3603     return v;
3604 }
3605
3606 int64_t qemu_ftell(QEMUFile *f)
3607 {
3608     return ftell(f);
3609 }
3610
3611 int64_t qemu_fseek(QEMUFile *f, int64_t pos, int whence)
3612 {
3613     if (fseek(f, pos, whence) < 0)
3614         return -1;
3615     return ftell(f);
3616 }
3617
3618 typedef struct SaveStateEntry {
3619     char idstr[256];
3620     int instance_id;
3621     int version_id;
3622     SaveStateHandler *save_state;
3623     LoadStateHandler *load_state;
3624     void *opaque;
3625     struct SaveStateEntry *next;
3626 } SaveStateEntry;
3627
3628 static SaveStateEntry *first_se;
3629
3630 int register_savevm(const char *idstr,
3631                     int instance_id,
3632                     int version_id,
3633                     SaveStateHandler *save_state,
3634                     LoadStateHandler *load_state,
3635                     void *opaque)
3636 {
3637     SaveStateEntry *se, **pse;
3638
3639     se = qemu_malloc(sizeof(SaveStateEntry));
3640     if (!se)
3641         return -1;
3642     pstrcpy(se->idstr, sizeof(se->idstr), idstr);
3643     se->instance_id = instance_id;
3644     se->version_id = version_id;
3645     se->save_state = save_state;
3646     se->load_state = load_state;
3647     se->opaque = opaque;
3648     se->next = NULL;
3649
3650     /* add at the end of list */
3651     pse = &first_se;
3652     while (*pse != NULL)
3653         pse = &(*pse)->next;
3654     *pse = se;
3655     return 0;
3656 }
3657
3658 #define QEMU_VM_FILE_MAGIC   0x5145564d
3659 #define QEMU_VM_FILE_VERSION 0x00000001
3660
3661 int qemu_savevm(const char *filename)
3662 {
3663     SaveStateEntry *se;
3664     QEMUFile *f;
3665     int len, len_pos, cur_pos, saved_vm_running, ret;
3666
3667     saved_vm_running = vm_running;
3668     vm_stop(0);
3669
3670     f = fopen(filename, "wb");
3671     if (!f) {
3672         ret = -1;
3673         goto the_end;
3674     }
3675
3676     qemu_put_be32(f, QEMU_VM_FILE_MAGIC);
3677     qemu_put_be32(f, QEMU_VM_FILE_VERSION);
3678
3679     for(se = first_se; se != NULL; se = se->next) {
3680         /* ID string */
3681         len = strlen(se->idstr);
3682         qemu_put_byte(f, len);
3683         qemu_put_buffer(f, se->idstr, len);
3684
3685         qemu_put_be32(f, se->instance_id);
3686         qemu_put_be32(f, se->version_id);
3687
3688         /* record size: filled later */
3689         len_pos = ftell(f);
3690         qemu_put_be32(f, 0);
3691
3692         se->save_state(f, se->opaque);
3693
3694         /* fill record size */
3695         cur_pos = ftell(f);
3696         len = ftell(f) - len_pos - 4;
3697         fseek(f, len_pos, SEEK_SET);
3698         qemu_put_be32(f, len);
3699         fseek(f, cur_pos, SEEK_SET);
3700     }
3701
3702     fclose(f);
3703     ret = 0;
3704  the_end:
3705     if (saved_vm_running)
3706         vm_start();
3707     return ret;
3708 }
3709
3710 static SaveStateEntry *find_se(const char *idstr, int instance_id)
3711 {
3712     SaveStateEntry *se;
3713
3714     for(se = first_se; se != NULL; se = se->next) {
3715         if (!strcmp(se->idstr, idstr) &&
3716             instance_id == se->instance_id)
3717             return se;
3718     }
3719     return NULL;
3720 }
3721
3722 int qemu_loadvm(const char *filename)
3723 {
3724     SaveStateEntry *se;
3725     QEMUFile *f;
3726     int len, cur_pos, ret, instance_id, record_len, version_id;
3727     int saved_vm_running;
3728     unsigned int v;
3729     char idstr[256];
3730
3731     saved_vm_running = vm_running;
3732     vm_stop(0);
3733
3734     f = fopen(filename, "rb");
3735     if (!f) {
3736         ret = -1;
3737         goto the_end;
3738     }
3739
3740     v = qemu_get_be32(f);
3741     if (v != QEMU_VM_FILE_MAGIC)
3742         goto fail;
3743     v = qemu_get_be32(f);
3744     if (v != QEMU_VM_FILE_VERSION) {
3745     fail:
3746         fclose(f);
3747         ret = -1;
3748         goto the_end;
3749     }
3750     for(;;) {
3751         len = qemu_get_byte(f);
3752         if (feof(f))
3753             break;
3754         qemu_get_buffer(f, idstr, len);
3755         idstr[len] = '\0';
3756         instance_id = qemu_get_be32(f);
3757         version_id = qemu_get_be32(f);
3758         record_len = qemu_get_be32(f);
3759 #if 0
3760         printf("idstr=%s instance=0x%x version=%d len=%d\n",
3761                idstr, instance_id, version_id, record_len);
3762 #endif
3763         cur_pos = ftell(f);
3764         se = find_se(idstr, instance_id);
3765         if (!se) {
3766             fprintf(stderr, "qemu: warning: instance 0x%x of device '%s' not present in current VM\n",
3767                     instance_id, idstr);
3768         } else {
3769             ret = se->load_state(f, se->opaque, version_id);
3770             if (ret < 0) {
3771                 fprintf(stderr, "qemu: warning: error while loading state for instance 0x%x of device '%s'\n",
3772                         instance_id, idstr);
3773             }
3774         }
3775         /* always seek to exact end of record */
3776         qemu_fseek(f, cur_pos + record_len, SEEK_SET);
3777     }
3778     fclose(f);
3779     ret = 0;
3780  the_end:
3781     if (saved_vm_running)
3782         vm_start();
3783     return ret;
3784 }
3785
3786 /***********************************************************/
3787 /* cpu save/restore */
3788
3789 #if defined(TARGET_I386)
3790
3791 static void cpu_put_seg(QEMUFile *f, SegmentCache *dt)
3792 {
3793     qemu_put_be32(f, dt->selector);
3794     qemu_put_betl(f, dt->base);
3795     qemu_put_be32(f, dt->limit);
3796     qemu_put_be32(f, dt->flags);
3797 }
3798
3799 static void cpu_get_seg(QEMUFile *f, SegmentCache *dt)
3800 {
3801     dt->selector = qemu_get_be32(f);
3802     dt->base = qemu_get_betl(f);
3803     dt->limit = qemu_get_be32(f);
3804     dt->flags = qemu_get_be32(f);
3805 }
3806
3807 void cpu_save(QEMUFile *f, void *opaque)
3808 {
3809     CPUState *env = opaque;
3810     uint16_t fptag, fpus, fpuc, fpregs_format;
3811     uint32_t hflags;
3812     int i;
3813
3814     for(i = 0; i < CPU_NB_REGS; i++)
3815         qemu_put_betls(f, &env->regs[i]);
3816     qemu_put_betls(f, &env->eip);
3817     qemu_put_betls(f, &env->eflags);
3818     hflags = env->hflags; /* XXX: suppress most of the redundant hflags */
3819     qemu_put_be32s(f, &hflags);
3820
3821     /* FPU */
3822     fpuc = env->fpuc;
3823     fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11;
3824     fptag = 0;
3825     for(i = 0; i < 8; i++) {
3826         fptag |= ((!env->fptags[i]) << i);
3827     }
3828
3829     qemu_put_be16s(f, &fpuc);
3830     qemu_put_be16s(f, &fpus);
3831     qemu_put_be16s(f, &fptag);
3832
3833 #ifdef USE_X86LDOUBLE
3834     fpregs_format = 0;
3835 #else
3836     fpregs_format = 1;
3837 #endif
3838     qemu_put_be16s(f, &fpregs_format);
3839
3840     for(i = 0; i < 8; i++) {
3841 #ifdef USE_X86LDOUBLE
3842         {
3843             uint64_t mant;
3844             uint16_t exp;
3845             /* we save the real CPU data (in case of MMX usage only 'mant'
3846                contains the MMX register */
3847             cpu_get_fp80(&mant, &exp, env->fpregs[i].d);
3848             qemu_put_be64(f, mant);
3849             qemu_put_be16(f, exp);
3850         }
3851 #else
3852         /* if we use doubles for float emulation, we save the doubles to
3853            avoid losing information in case of MMX usage. It can give
3854            problems if the image is restored on a CPU where long
3855            doubles are used instead. */
3856         qemu_put_be64(f, env->fpregs[i].mmx.MMX_Q(0));
3857 #endif
3858     }
3859
3860     for(i = 0; i < 6; i++)
3861         cpu_put_seg(f, &env->segs[i]);
3862     cpu_put_seg(f, &env->ldt);
3863     cpu_put_seg(f, &env->tr);
3864     cpu_put_seg(f, &env->gdt);
3865     cpu_put_seg(f, &env->idt);
3866
3867     qemu_put_be32s(f, &env->sysenter_cs);
3868     qemu_put_be32s(f, &env->sysenter_esp);
3869     qemu_put_be32s(f, &env->sysenter_eip);
3870
3871     qemu_put_betls(f, &env->cr[0]);
3872     qemu_put_betls(f, &env->cr[2]);
3873     qemu_put_betls(f, &env->cr[3]);
3874     qemu_put_betls(f, &env->cr[4]);
3875
3876     for(i = 0; i < 8; i++)
3877         qemu_put_betls(f, &env->dr[i]);
3878
3879     /* MMU */
3880     qemu_put_be32s(f, &env->a20_mask);
3881
3882     /* XMM */
3883     qemu_put_be32s(f, &env->mxcsr);
3884     for(i = 0; i < CPU_NB_REGS; i++) {
3885         qemu_put_be64s(f, &env->xmm_regs[i].XMM_Q(0));
3886         qemu_put_be64s(f, &env->xmm_regs[i].XMM_Q(1));
3887     }
3888
3889 #ifdef TARGET_X86_64
3890     qemu_put_be64s(f, &env->efer);
3891     qemu_put_be64s(f, &env->star);
3892     qemu_put_be64s(f, &env->lstar);
3893     qemu_put_be64s(f, &env->cstar);
3894     qemu_put_be64s(f, &env->fmask);
3895     qemu_put_be64s(f, &env->kernelgsbase);
3896 #endif
3897 }
3898
3899 #ifdef USE_X86LDOUBLE
3900 /* XXX: add that in a FPU generic layer */
3901 union x86_longdouble {
3902     uint64_t mant;
3903     uint16_t exp;
3904 };
3905
3906 #define MANTD1(fp)      (fp & ((1LL << 52) - 1))
3907 #define EXPBIAS1 1023
3908 #define EXPD1(fp)       ((fp >> 52) & 0x7FF)
3909 #define SIGND1(fp)      ((fp >> 32) & 0x80000000)
3910
3911 static void fp64_to_fp80(union x86_longdouble *p, uint64_t temp)
3912 {
3913     int e;
3914     /* mantissa */
3915     p->mant = (MANTD1(temp) << 11) | (1LL << 63);
3916     /* exponent + sign */
3917     e = EXPD1(temp) - EXPBIAS1 + 16383;
3918     e |= SIGND1(temp) >> 16;
3919     p->exp = e;
3920 }
3921 #endif
3922
3923 int cpu_load(QEMUFile *f, void *opaque, int version_id)
3924 {
3925     CPUState *env = opaque;
3926     int i, guess_mmx;
3927     uint32_t hflags;
3928     uint16_t fpus, fpuc, fptag, fpregs_format;
3929
3930     if (version_id != 3)
3931         return -EINVAL;
3932     for(i = 0; i < CPU_NB_REGS; i++)
3933         qemu_get_betls(f, &env->regs[i]);
3934     qemu_get_betls(f, &env->eip);
3935     qemu_get_betls(f, &env->eflags);
3936     qemu_get_be32s(f, &hflags);
3937
3938     qemu_get_be16s(f, &fpuc);
3939     qemu_get_be16s(f, &fpus);
3940     qemu_get_be16s(f, &fptag);
3941     qemu_get_be16s(f, &fpregs_format);
3942
3943     /* NOTE: we cannot always restore the FPU state if the image come
3944        from a host with a different 'USE_X86LDOUBLE' define. We guess
3945        if we are in an MMX state to restore correctly in that case. */
3946     guess_mmx = ((fptag == 0xff) && (fpus & 0x3800) == 0);
3947     for(i = 0; i < 8; i++) {
3948         uint64_t mant;
3949         uint16_t exp;
3950
3951         switch(fpregs_format) {
3952         case 0:
3953             mant = qemu_get_be64(f);
3954             exp = qemu_get_be16(f);
3955 #ifdef USE_X86LDOUBLE
3956             env->fpregs[i].d = cpu_set_fp80(mant, exp);
3957 #else
3958             /* difficult case */
3959             if (guess_mmx)
3960                 env->fpregs[i].mmx.MMX_Q(0) = mant;
3961             else
3962                 env->fpregs[i].d = cpu_set_fp80(mant, exp);
3963 #endif
3964             break;
3965         case 1:
3966             mant = qemu_get_be64(f);
3967 #ifdef USE_X86LDOUBLE
3968             {
3969                 union x86_longdouble *p;
3970                 /* difficult case */
3971                 p = (void *)&env->fpregs[i];
3972                 if (guess_mmx) {
3973                     p->mant = mant;
3974                     p->exp = 0xffff;
3975                 } else {
3976                     fp64_to_fp80(p, mant);
3977                 }
3978             }
3979 #else
3980             env->fpregs[i].mmx.MMX_Q(0) = mant;
3981 #endif
3982             break;
3983         default:
3984             return -EINVAL;
3985         }
3986     }
3987
3988     env->fpuc = fpuc;
3989     /* XXX: restore FPU round state */
3990     env->fpstt = (fpus >> 11) & 7;
3991     env->fpus = fpus & ~0x3800;
3992     fptag ^= 0xff;
3993     for(i = 0; i < 8; i++) {
3994         env->fptags[i] = (fptag >> i) & 1;
3995     }
3996
3997     for(i = 0; i < 6; i++)
3998         cpu_get_seg(f, &env->segs[i]);
3999     cpu_get_seg(f, &env->ldt);
4000     cpu_get_seg(f, &env->tr);
4001     cpu_get_seg(f, &env->gdt);
4002     cpu_get_seg(f, &env->idt);
4003
4004     qemu_get_be32s(f, &env->sysenter_cs);
4005     qemu_get_be32s(f, &env->sysenter_esp);
4006     qemu_get_be32s(f, &env->sysenter_eip);
4007
4008     qemu_get_betls(f, &env->cr[0]);
4009     qemu_get_betls(f, &env->cr[2]);
4010     qemu_get_betls(f, &env->cr[3]);
4011     qemu_get_betls(f, &env->cr[4]);
4012
4013     for(i = 0; i < 8; i++)
4014         qemu_get_betls(f, &env->dr[i]);
4015
4016     /* MMU */
4017     qemu_get_be32s(f, &env->a20_mask);
4018
4019     qemu_get_be32s(f, &env->mxcsr);
4020     for(i = 0; i < CPU_NB_REGS; i++) {
4021         qemu_get_be64s(f, &env->xmm_regs[i].XMM_Q(0));
4022         qemu_get_be64s(f, &env->xmm_regs[i].XMM_Q(1));
4023     }
4024
4025 #ifdef TARGET_X86_64
4026     qemu_get_be64s(f, &env->efer);
4027     qemu_get_be64s(f, &env->star);
4028     qemu_get_be64s(f, &env->lstar);
4029     qemu_get_be64s(f, &env->cstar);
4030     qemu_get_be64s(f, &env->fmask);
4031     qemu_get_be64s(f, &env->kernelgsbase);
4032 #endif
4033
4034     /* XXX: compute hflags from scratch, except for CPL and IIF */
4035     env->hflags = hflags;
4036     tlb_flush(env, 1);
4037     return 0;
4038 }
4039
4040 #elif defined(TARGET_PPC)
4041 void cpu_save(QEMUFile *f, void *opaque)
4042 {
4043 }
4044
4045 int cpu_load(QEMUFile *f, void *opaque, int version_id)
4046 {
4047     return 0;
4048 }
4049
4050 #elif defined(TARGET_MIPS)
4051 void cpu_save(QEMUFile *f, void *opaque)
4052 {
4053 }
4054
4055 int cpu_load(QEMUFile *f, void *opaque, int version_id)
4056 {
4057     return 0;
4058 }
4059
4060 #elif defined(TARGET_SPARC)
4061 void cpu_save(QEMUFile *f, void *opaque)
4062 {
4063     CPUState *env = opaque;
4064     int i;
4065     uint32_t tmp;
4066
4067     for(i = 0; i < 8; i++)
4068         qemu_put_betls(f, &env->gregs[i]);
4069     for(i = 0; i < NWINDOWS * 16; i++)
4070         qemu_put_betls(f, &env->regbase[i]);
4071
4072     /* FPU */
4073     for(i = 0; i < TARGET_FPREGS; i++) {
4074         union {
4075             TARGET_FPREG_T f;
4076             target_ulong i;
4077         } u;
4078         u.f = env->fpr[i];
4079         qemu_put_betl(f, u.i);
4080     }
4081
4082     qemu_put_betls(f, &env->pc);
4083     qemu_put_betls(f, &env->npc);
4084     qemu_put_betls(f, &env->y);
4085     tmp = GET_PSR(env);
4086     qemu_put_be32(f, tmp);
4087     qemu_put_betls(f, &env->fsr);
4088     qemu_put_betls(f, &env->tbr);
4089 #ifndef TARGET_SPARC64
4090     qemu_put_be32s(f, &env->wim);
4091     /* MMU */
4092     for(i = 0; i < 16; i++)
4093         qemu_put_be32s(f, &env->mmuregs[i]);
4094 #endif
4095 }
4096
4097 int cpu_load(QEMUFile *f, void *opaque, int version_id)
4098 {
4099     CPUState *env = opaque;
4100     int i;
4101     uint32_t tmp;
4102
4103     for(i = 0; i < 8; i++)
4104         qemu_get_betls(f, &env->gregs[i]);
4105     for(i = 0; i < NWINDOWS * 16; i++)
4106         qemu_get_betls(f, &env->regbase[i]);
4107
4108     /* FPU */
4109     for(i = 0; i < TARGET_FPREGS; i++) {
4110         union {
4111             TARGET_FPREG_T f;
4112             target_ulong i;
4113         } u;
4114         u.i = qemu_get_betl(f);
4115         env->fpr[i] = u.f;
4116     }
4117
4118     qemu_get_betls(f, &env->pc);
4119     qemu_get_betls(f, &env->npc);
4120     qemu_get_betls(f, &env->y);
4121     tmp = qemu_get_be32(f);
4122     env->cwp = 0; /* needed to ensure that the wrapping registers are
4123                      correctly updated */
4124     PUT_PSR(env, tmp);
4125     qemu_get_betls(f, &env->fsr);
4126     qemu_get_betls(f, &env->tbr);
4127 #ifndef TARGET_SPARC64
4128     qemu_get_be32s(f, &env->wim);
4129     /* MMU */
4130     for(i = 0; i < 16; i++)
4131         qemu_get_be32s(f, &env->mmuregs[i]);
4132 #endif
4133     tlb_flush(env, 1);
4134     return 0;
4135 }
4136
4137 #elif defined(TARGET_ARM)
4138
4139 /* ??? Need to implement these.  */
4140 void cpu_save(QEMUFile *f, void *opaque)
4141 {
4142 }
4143
4144 int cpu_load(QEMUFile *f, void *opaque, int version_id)
4145 {
4146     return 0;
4147 }
4148
4149 #else
4150
4151 #warning No CPU save/restore functions
4152
4153 #endif
4154
4155 /***********************************************************/
4156 /* ram save/restore */
4157
4158 /* we just avoid storing empty pages */
4159 static void ram_put_page(QEMUFile *f, const uint8_t *buf, int len)
4160 {
4161     int i, v;
4162
4163     v = buf[0];
4164     for(i = 1; i < len; i++) {
4165         if (buf[i] != v)
4166             goto normal_save;
4167     }
4168     qemu_put_byte(f, 1);
4169     qemu_put_byte(f, v);
4170     return;
4171  normal_save:
4172     qemu_put_byte(f, 0);
4173     qemu_put_buffer(f, buf, len);
4174 }
4175
4176 static int ram_get_page(QEMUFile *f, uint8_t *buf, int len)
4177 {
4178     int v;
4179
4180     v = qemu_get_byte(f);
4181     switch(v) {
4182     case 0:
4183         if (qemu_get_buffer(f, buf, len) != len)
4184             return -EIO;
4185         break;
4186     case 1:
4187         v = qemu_get_byte(f);
4188         memset(buf, v, len);
4189         break;
4190     default:
4191         return -EINVAL;
4192     }
4193     return 0;
4194 }
4195
4196 static void ram_save(QEMUFile *f, void *opaque)
4197 {
4198     int i;
4199     qemu_put_be32(f, phys_ram_size);
4200     for(i = 0; i < phys_ram_size; i+= TARGET_PAGE_SIZE) {
4201         ram_put_page(f, phys_ram_base + i, TARGET_PAGE_SIZE);
4202     }
4203 }
4204
4205 static int ram_load(QEMUFile *f, void *opaque, int version_id)
4206 {
4207     int i, ret;
4208
4209     if (version_id != 1)
4210         return -EINVAL;
4211     if (qemu_get_be32(f) != phys_ram_size)
4212         return -EINVAL;
4213     for(i = 0; i < phys_ram_size; i+= TARGET_PAGE_SIZE) {
4214         ret = ram_get_page(f, phys_ram_base + i, TARGET_PAGE_SIZE);
4215         if (ret)
4216             return ret;
4217     }
4218     return 0;
4219 }
4220
4221 /***********************************************************/
4222 /* machine registration */
4223
4224 QEMUMachine *first_machine = NULL;
4225
4226 int qemu_register_machine(QEMUMachine *m)
4227 {
4228     QEMUMachine **pm;
4229     pm = &first_machine;
4230     while (*pm != NULL)
4231         pm = &(*pm)->next;
4232     m->next = NULL;
4233     *pm = m;
4234     return 0;
4235 }
4236
4237 QEMUMachine *find_machine(const char *name)
4238 {
4239     QEMUMachine *m;
4240
4241     for(m = first_machine; m != NULL; m = m->next) {
4242         if (!strcmp(m->name, name))
4243             return m;
4244     }
4245     return NULL;
4246 }
4247
4248 /***********************************************************/
4249 /* main execution loop */
4250
4251 void gui_update(void *opaque)
4252 {
4253     display_state.dpy_refresh(&display_state);
4254     qemu_mod_timer(gui_timer, GUI_REFRESH_INTERVAL + qemu_get_clock(rt_clock));
4255 }
4256
4257 struct vm_change_state_entry {
4258     VMChangeStateHandler *cb;
4259     void *opaque;
4260     LIST_ENTRY (vm_change_state_entry) entries;
4261 };
4262
4263 static LIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
4264
4265 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
4266                                                      void *opaque)
4267 {
4268     VMChangeStateEntry *e;
4269
4270     e = qemu_mallocz(sizeof (*e));
4271     if (!e)
4272         return NULL;
4273
4274     e->cb = cb;
4275     e->opaque = opaque;
4276     LIST_INSERT_HEAD(&vm_change_state_head, e, entries);
4277     return e;
4278 }
4279
4280 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
4281 {
4282     LIST_REMOVE (e, entries);
4283     qemu_free (e);
4284 }
4285
4286 static void vm_state_notify(int running)
4287 {
4288     VMChangeStateEntry *e;
4289
4290     for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
4291         e->cb(e->opaque, running);
4292     }
4293 }
4294
4295 /* XXX: support several handlers */
4296 static VMStopHandler *vm_stop_cb;
4297 static void *vm_stop_opaque;
4298
4299 int qemu_add_vm_stop_handler(VMStopHandler *cb, void *opaque)
4300 {
4301     vm_stop_cb = cb;
4302     vm_stop_opaque = opaque;
4303     return 0;
4304 }
4305
4306 void qemu_del_vm_stop_handler(VMStopHandler *cb, void *opaque)
4307 {
4308     vm_stop_cb = NULL;
4309 }
4310
4311 void vm_start(void)
4312 {
4313     if (!vm_running) {
4314         cpu_enable_ticks();
4315         vm_running = 1;
4316         vm_state_notify(1);
4317     }
4318 }
4319
4320 void vm_stop(int reason)
4321 {
4322     if (vm_running) {
4323         cpu_disable_ticks();
4324         vm_running = 0;
4325         if (reason != 0) {
4326             if (vm_stop_cb) {
4327                 vm_stop_cb(vm_stop_opaque, reason);
4328             }
4329         }
4330         vm_state_notify(0);
4331     }
4332 }
4333
4334 /* reset/shutdown handler */
4335
4336 typedef struct QEMUResetEntry {
4337     QEMUResetHandler *func;
4338     void *opaque;
4339     struct QEMUResetEntry *next;
4340 } QEMUResetEntry;
4341
4342 static QEMUResetEntry *first_reset_entry;
4343 static int reset_requested;
4344 static int shutdown_requested;
4345 static int powerdown_requested;
4346
4347 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
4348 {
4349     QEMUResetEntry **pre, *re;
4350
4351     pre = &first_reset_entry;
4352     while (*pre != NULL)
4353         pre = &(*pre)->next;
4354     re = qemu_mallocz(sizeof(QEMUResetEntry));
4355     re->func = func;
4356     re->opaque = opaque;
4357     re->next = NULL;
4358     *pre = re;
4359 }
4360
4361 void qemu_system_reset(void)
4362 {
4363     QEMUResetEntry *re;
4364
4365     /* reset all devices */
4366     for(re = first_reset_entry; re != NULL; re = re->next) {
4367         re->func(re->opaque);
4368     }
4369 }
4370
4371 void qemu_system_reset_request(void)
4372 {
4373     reset_requested = 1;
4374     if (cpu_single_env)
4375         cpu_interrupt(cpu_single_env, CPU_INTERRUPT_EXIT);
4376 }
4377
4378 void qemu_system_shutdown_request(void)
4379 {
4380     shutdown_requested = 1;
4381     if (cpu_single_env)
4382         cpu_interrupt(cpu_single_env, CPU_INTERRUPT_EXIT);
4383 }
4384
4385 void qemu_system_powerdown_request(void)
4386 {
4387     powerdown_requested = 1;
4388     if (cpu_single_env)
4389         cpu_interrupt(cpu_single_env, CPU_INTERRUPT_EXIT);
4390 }
4391
4392 void main_loop_wait(int timeout)
4393 {
4394     IOHandlerRecord *ioh, *ioh_next;
4395     fd_set rfds, wfds;
4396     int ret, nfds;
4397     struct timeval tv;
4398     PollingEntry *pe;
4399
4400
4401     /* XXX: need to suppress polling by better using win32 events */
4402     ret = 0;
4403     for(pe = first_polling_entry; pe != NULL; pe = pe->next) {
4404         ret |= pe->func(pe->opaque);
4405     }
4406 #ifdef _WIN32
4407     if (ret == 0 && timeout > 0) {
4408         Sleep(timeout);
4409     }
4410 #endif
4411     /* poll any events */
4412     /* XXX: separate device handlers from system ones */
4413     nfds = -1;
4414     FD_ZERO(&rfds);
4415     FD_ZERO(&wfds);
4416     for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
4417         if (ioh->fd_read &&
4418             (!ioh->fd_read_poll ||
4419              ioh->fd_read_poll(ioh->opaque) != 0)) {
4420             FD_SET(ioh->fd, &rfds);
4421             if (ioh->fd > nfds)
4422                 nfds = ioh->fd;
4423         }
4424         if (ioh->fd_write) {
4425             FD_SET(ioh->fd, &wfds);
4426             if (ioh->fd > nfds)
4427                 nfds = ioh->fd;
4428         }
4429     }
4430
4431     tv.tv_sec = 0;
4432 #ifdef _WIN32
4433     tv.tv_usec = 0;
4434 #else
4435     tv.tv_usec = timeout * 1000;
4436 #endif
4437     ret = select(nfds + 1, &rfds, &wfds, NULL, &tv);
4438     if (ret > 0) {
4439         /* XXX: better handling of removal */
4440         for(ioh = first_io_handler; ioh != NULL; ioh = ioh_next) {
4441             ioh_next = ioh->next;
4442             if (FD_ISSET(ioh->fd, &rfds)) {
4443                 ioh->fd_read(ioh->opaque);
4444             }
4445             if (FD_ISSET(ioh->fd, &wfds)) {
4446                 ioh->fd_write(ioh->opaque);
4447             }
4448         }
4449     }
4450 #ifdef _WIN32
4451     tap_win32_poll();
4452 #endif
4453
4454 #if defined(CONFIG_SLIRP)
4455     /* XXX: merge with the previous select() */
4456     if (slirp_inited) {
4457         fd_set rfds, wfds, xfds;
4458         int nfds;
4459         struct timeval tv;
4460
4461         nfds = -1;
4462         FD_ZERO(&rfds);
4463         FD_ZERO(&wfds);
4464         FD_ZERO(&xfds);
4465         slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
4466         tv.tv_sec = 0;
4467         tv.tv_usec = 0;
4468         ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
4469         if (ret >= 0) {
4470             slirp_select_poll(&rfds, &wfds, &xfds);
4471         }
4472     }
4473 #endif
4474
4475     if (vm_running) {
4476         qemu_run_timers(&active_timers[QEMU_TIMER_VIRTUAL],
4477                         qemu_get_clock(vm_clock));
4478         /* run dma transfers, if any */
4479         DMA_run();
4480     }
4481
4482     /* real time timers */
4483     qemu_run_timers(&active_timers[QEMU_TIMER_REALTIME],
4484                     qemu_get_clock(rt_clock));
4485 }
4486
4487 static CPUState *cur_cpu;
4488
4489 int main_loop(void)
4490 {
4491     int ret, timeout;
4492 #ifdef CONFIG_PROFILER
4493     int64_t ti;
4494 #endif
4495     CPUState *env;
4496
4497     cur_cpu = first_cpu;
4498     for(;;) {
4499         if (vm_running) {
4500
4501             env = cur_cpu;
4502             for(;;) {
4503                 /* get next cpu */
4504                 env = env->next_cpu;
4505                 if (!env)
4506                     env = first_cpu;
4507 #ifdef CONFIG_PROFILER
4508                 ti = profile_getclock();
4509 #endif
4510                 ret = cpu_exec(env);
4511 #ifdef CONFIG_PROFILER
4512                 qemu_time += profile_getclock() - ti;
4513 #endif
4514                 if (ret != EXCP_HALTED)
4515                     break;
4516                 /* all CPUs are halted ? */
4517                 if (env == cur_cpu) {
4518                     ret = EXCP_HLT;
4519                     break;
4520                 }
4521             }
4522             cur_cpu = env;
4523
4524             if (shutdown_requested) {
4525                 ret = EXCP_INTERRUPT;
4526                 break;
4527             }
4528             if (reset_requested) {
4529                 reset_requested = 0;
4530                 qemu_system_reset();
4531                 ret = EXCP_INTERRUPT;
4532             }
4533             if (powerdown_requested) {
4534                 powerdown_requested = 0;
4535                 qemu_system_powerdown();
4536                 ret = EXCP_INTERRUPT;
4537             }
4538             if (ret == EXCP_DEBUG) {
4539                 vm_stop(EXCP_DEBUG);
4540             }
4541             /* if hlt instruction, we wait until the next IRQ */
4542             /* XXX: use timeout computed from timers */
4543             if (ret == EXCP_HLT)
4544                 timeout = 10;
4545             else
4546                 timeout = 0;
4547         } else {
4548             timeout = 10;
4549         }
4550 #ifdef CONFIG_PROFILER
4551         ti = profile_getclock();
4552 #endif
4553         main_loop_wait(timeout);
4554 #ifdef CONFIG_PROFILER
4555         dev_time += profile_getclock() - ti;
4556 #endif
4557     }
4558     cpu_disable_ticks();
4559     return ret;
4560 }
4561
4562 void help(void)
4563 {
4564     printf("QEMU PC emulator version " QEMU_VERSION ", Copyright (c) 2003-2005 Fabrice Bellard\n"
4565            "usage: %s [options] [disk_image]\n"
4566            "\n"
4567            "'disk_image' is a raw hard image image for IDE hard disk 0\n"
4568            "\n"
4569            "Standard options:\n"
4570            "-M machine      select emulated machine (-M ? for list)\n"
4571            "-fda/-fdb file  use 'file' as floppy disk 0/1 image\n"
4572            "-hda/-hdb file  use 'file' as IDE hard disk 0/1 image\n"
4573            "-hdc/-hdd file  use 'file' as IDE hard disk 2/3 image\n"
4574            "-cdrom file     use 'file' as IDE cdrom image (cdrom is ide1 master)\n"
4575            "-boot [a|c|d]   boot on floppy (a), hard disk (c) or CD-ROM (d)\n"
4576            "-snapshot       write to temporary files instead of disk image files\n"
4577            "-m megs         set virtual RAM size to megs MB [default=%d]\n"
4578            "-smp n          set the number of CPUs to 'n' [default=1]\n"
4579            "-nographic      disable graphical output and redirect serial I/Os to console\n"
4580 #ifndef _WIN32
4581            "-k language     use keyboard layout (for example \"fr\" for French)\n"
4582 #endif
4583 #ifdef HAS_AUDIO
4584            "-audio-help     print list of audio drivers and their options\n"
4585            "-soundhw c1,... enable audio support\n"
4586            "                and only specified sound cards (comma separated list)\n"
4587            "                use -soundhw ? to get the list of supported cards\n"
4588            "                use -soundhw all to enable all of them\n"
4589 #endif
4590            "-localtime      set the real time clock to local time [default=utc]\n"
4591            "-full-screen    start in full screen\n"
4592 #ifdef TARGET_I386
4593            "-win2k-hack     use it when installing Windows 2000 to avoid a disk full bug\n"
4594 #endif
4595            "-usb            enable the USB driver (will be the default soon)\n"
4596            "-usbdevice name add the host or guest USB device 'name'\n"
4597 #if defined(TARGET_PPC) || defined(TARGET_SPARC)
4598            "-g WxH[xDEPTH]  Set the initial graphical resolution and depth\n"
4599 #endif
4600            "\n"
4601            "Network options:\n"
4602            "-net nic[,vlan=n][,macaddr=addr][,model=type]\n"
4603            "                create a new Network Interface Card and connect it to VLAN 'n'\n"
4604 #ifdef CONFIG_SLIRP
4605            "-net user[,vlan=n][,hostname=host]\n"
4606            "                connect the user mode network stack to VLAN 'n' and send\n"
4607            "                hostname 'host' to DHCP clients\n"
4608 #endif
4609 #ifdef _WIN32
4610            "-net tap[,vlan=n],ifname=name\n"
4611            "                connect the host TAP network interface to VLAN 'n'\n"
4612 #else
4613            "-net tap[,vlan=n][,fd=h][,ifname=name][,script=file]\n"
4614            "                connect the host TAP network interface to VLAN 'n' and use\n"
4615            "                the network script 'file' (default=%s);\n"
4616            "                use 'fd=h' to connect to an already opened TAP interface\n"
4617 #endif
4618            "-net socket[,vlan=n][,fd=h][,listen=[host]:port][,connect=host:port]\n"
4619            "                connect the vlan 'n' to another VLAN using a socket connection\n"
4620            "-net socket[,vlan=n][,fd=h][,mcast=maddr:port]\n"
4621            "                connect the vlan 'n' to multicast maddr and port\n"
4622            "-net none       use it alone to have zero network devices; if no -net option\n"
4623            "                is provided, the default is '-net nic -net user'\n"
4624            "\n"
4625 #ifdef CONFIG_SLIRP
4626            "-tftp prefix    allow tftp access to files starting with prefix [-net user]\n"
4627 #ifndef _WIN32
4628            "-smb dir        allow SMB access to files in 'dir' [-net user]\n"
4629 #endif
4630            "-redir [tcp|udp]:host-port:[guest-host]:guest-port\n"
4631            "                redirect TCP or UDP connections from host to guest [-net user]\n"
4632 #endif
4633            "\n"
4634            "Linux boot specific:\n"
4635            "-kernel bzImage use 'bzImage' as kernel image\n"
4636            "-append cmdline use 'cmdline' as kernel command line\n"
4637            "-initrd file    use 'file' as initial ram disk\n"
4638            "\n"
4639            "Debug/Expert options:\n"
4640            "-monitor dev    redirect the monitor to char device 'dev'\n"
4641            "-serial dev     redirect the serial port to char device 'dev'\n"
4642            "-parallel dev   redirect the parallel port to char device 'dev'\n"
4643            "-pidfile file   Write PID to 'file'\n"
4644            "-S              freeze CPU at startup (use 'c' to start execution)\n"
4645            "-s              wait gdb connection to port %d\n"
4646            "-p port         change gdb connection port\n"
4647            "-d item1,...    output log to %s (use -d ? for a list of log items)\n"
4648            "-hdachs c,h,s[,t]  force hard disk 0 physical geometry and the optional BIOS\n"
4649            "                translation (t=none or lba) (usually qemu can guess them)\n"
4650            "-L path         set the directory for the BIOS and VGA BIOS\n"
4651 #ifdef USE_KQEMU
4652            "-no-kqemu       disable KQEMU kernel module usage\n"
4653 #endif
4654 #ifdef USE_CODE_COPY
4655            "-no-code-copy   disable code copy acceleration\n"
4656 #endif
4657 #ifdef TARGET_I386
4658            "-std-vga        simulate a standard VGA card with VESA Bochs Extensions\n"
4659            "                (default is CL-GD5446 PCI VGA)\n"
4660 #endif
4661            "-loadvm file    start right away with a saved state (loadvm in monitor)\n"
4662            "\n"
4663            "During emulation, the following keys are useful:\n"
4664            "ctrl-alt-f      toggle full screen\n"
4665            "ctrl-alt-n      switch to virtual console 'n'\n"
4666            "ctrl-alt        toggle mouse and keyboard grab\n"
4667            "\n"
4668            "When using -nographic, press 'ctrl-a h' to get some help.\n"
4669            ,
4670 #ifdef CONFIG_SOFTMMU
4671            "qemu",
4672 #else
4673            "qemu-fast",
4674 #endif
4675            DEFAULT_RAM_SIZE,
4676 #ifndef _WIN32
4677            DEFAULT_NETWORK_SCRIPT,
4678 #endif
4679            DEFAULT_GDBSTUB_PORT,
4680            "/tmp/qemu.log");
4681 #ifndef CONFIG_SOFTMMU
4682     printf("\n"
4683            "NOTE: this version of QEMU is faster but it needs slightly patched OSes to\n"
4684            "work. Please use the 'qemu' executable to have a more accurate (but slower)\n"
4685            "PC emulation.\n");
4686 #endif
4687     exit(1);
4688 }
4689
4690 #define HAS_ARG 0x0001
4691
4692 enum {
4693     QEMU_OPTION_h,
4694
4695     QEMU_OPTION_M,
4696     QEMU_OPTION_fda,
4697     QEMU_OPTION_fdb,
4698     QEMU_OPTION_hda,
4699     QEMU_OPTION_hdb,
4700     QEMU_OPTION_hdc,
4701     QEMU_OPTION_hdd,
4702     QEMU_OPTION_cdrom,
4703     QEMU_OPTION_boot,
4704     QEMU_OPTION_snapshot,
4705     QEMU_OPTION_m,
4706     QEMU_OPTION_nographic,
4707 #ifdef HAS_AUDIO
4708     QEMU_OPTION_audio_help,
4709     QEMU_OPTION_soundhw,
4710 #endif
4711
4712     QEMU_OPTION_net,
4713     QEMU_OPTION_tftp,
4714     QEMU_OPTION_smb,
4715     QEMU_OPTION_redir,
4716
4717     QEMU_OPTION_kernel,
4718     QEMU_OPTION_append,
4719     QEMU_OPTION_initrd,
4720
4721     QEMU_OPTION_S,
4722     QEMU_OPTION_s,
4723     QEMU_OPTION_p,
4724     QEMU_OPTION_d,
4725     QEMU_OPTION_hdachs,
4726     QEMU_OPTION_L,
4727     QEMU_OPTION_no_code_copy,
4728     QEMU_OPTION_k,
4729     QEMU_OPTION_localtime,
4730     QEMU_OPTION_cirrusvga,
4731     QEMU_OPTION_g,
4732     QEMU_OPTION_std_vga,
4733     QEMU_OPTION_monitor,
4734     QEMU_OPTION_serial,
4735     QEMU_OPTION_parallel,
4736     QEMU_OPTION_loadvm,
4737     QEMU_OPTION_full_screen,
4738     QEMU_OPTION_pidfile,
4739     QEMU_OPTION_no_kqemu,
4740     QEMU_OPTION_kernel_kqemu,
4741     QEMU_OPTION_win2k_hack,
4742     QEMU_OPTION_usb,
4743     QEMU_OPTION_usbdevice,
4744     QEMU_OPTION_smp,
4745 };
4746
4747 typedef struct QEMUOption {
4748     const char *name;
4749     int flags;
4750     int index;
4751 } QEMUOption;
4752
4753 const QEMUOption qemu_options[] = {
4754     { "h", 0, QEMU_OPTION_h },
4755
4756     { "M", HAS_ARG, QEMU_OPTION_M },
4757     { "fda", HAS_ARG, QEMU_OPTION_fda },
4758     { "fdb", HAS_ARG, QEMU_OPTION_fdb },
4759     { "hda", HAS_ARG, QEMU_OPTION_hda },
4760     { "hdb", HAS_ARG, QEMU_OPTION_hdb },
4761     { "hdc", HAS_ARG, QEMU_OPTION_hdc },
4762     { "hdd", HAS_ARG, QEMU_OPTION_hdd },
4763     { "cdrom", HAS_ARG, QEMU_OPTION_cdrom },
4764     { "boot", HAS_ARG, QEMU_OPTION_boot },
4765     { "snapshot", 0, QEMU_OPTION_snapshot },
4766     { "m", HAS_ARG, QEMU_OPTION_m },
4767     { "nographic", 0, QEMU_OPTION_nographic },
4768     { "k", HAS_ARG, QEMU_OPTION_k },
4769 #ifdef HAS_AUDIO
4770     { "audio-help", 0, QEMU_OPTION_audio_help },
4771     { "soundhw", HAS_ARG, QEMU_OPTION_soundhw },
4772 #endif
4773
4774     { "net", HAS_ARG, QEMU_OPTION_net},
4775 #ifdef CONFIG_SLIRP
4776     { "tftp", HAS_ARG, QEMU_OPTION_tftp },
4777 #ifndef _WIN32
4778     { "smb", HAS_ARG, QEMU_OPTION_smb },
4779 #endif
4780     { "redir", HAS_ARG, QEMU_OPTION_redir },
4781 #endif
4782
4783     { "kernel", HAS_ARG, QEMU_OPTION_kernel },
4784     { "append", HAS_ARG, QEMU_OPTION_append },
4785     { "initrd", HAS_ARG, QEMU_OPTION_initrd },
4786
4787     { "S", 0, QEMU_OPTION_S },
4788     { "s", 0, QEMU_OPTION_s },
4789     { "p", HAS_ARG, QEMU_OPTION_p },
4790     { "d", HAS_ARG, QEMU_OPTION_d },
4791     { "hdachs", HAS_ARG, QEMU_OPTION_hdachs },
4792     { "L", HAS_ARG, QEMU_OPTION_L },
4793     { "no-code-copy", 0, QEMU_OPTION_no_code_copy },
4794 #ifdef USE_KQEMU
4795     { "no-kqemu", 0, QEMU_OPTION_no_kqemu },
4796     { "kernel-kqemu", 0, QEMU_OPTION_kernel_kqemu },
4797 #endif
4798 #if defined(TARGET_PPC) || defined(TARGET_SPARC)
4799     { "g", 1, QEMU_OPTION_g },
4800 #endif
4801     { "localtime", 0, QEMU_OPTION_localtime },
4802     { "std-vga", 0, QEMU_OPTION_std_vga },
4803     { "monitor", 1, QEMU_OPTION_monitor },
4804     { "serial", 1, QEMU_OPTION_serial },
4805     { "parallel", 1, QEMU_OPTION_parallel },
4806     { "loadvm", HAS_ARG, QEMU_OPTION_loadvm },
4807     { "full-screen", 0, QEMU_OPTION_full_screen },
4808     { "pidfile", HAS_ARG, QEMU_OPTION_pidfile },
4809     { "win2k-hack", 0, QEMU_OPTION_win2k_hack },
4810     { "usbdevice", HAS_ARG, QEMU_OPTION_usbdevice },
4811     { "smp", HAS_ARG, QEMU_OPTION_smp },
4812
4813     /* temporary options */
4814     { "usb", 0, QEMU_OPTION_usb },
4815     { "cirrusvga", 0, QEMU_OPTION_cirrusvga },
4816     { NULL },
4817 };
4818
4819 #if defined (TARGET_I386) && defined(USE_CODE_COPY)
4820
4821 /* this stack is only used during signal handling */
4822 #define SIGNAL_STACK_SIZE 32768
4823
4824 static uint8_t *signal_stack;
4825
4826 #endif
4827
4828 /* password input */
4829
4830 static BlockDriverState *get_bdrv(int index)
4831 {
4832     BlockDriverState *bs;
4833
4834     if (index < 4) {
4835         bs = bs_table[index];
4836     } else if (index < 6) {
4837         bs = fd_table[index - 4];
4838     } else {
4839         bs = NULL;
4840     }
4841     return bs;
4842 }
4843
4844 static void read_passwords(void)
4845 {
4846     BlockDriverState *bs;
4847     int i, j;
4848     char password[256];
4849
4850     for(i = 0; i < 6; i++) {
4851         bs = get_bdrv(i);
4852         if (bs && bdrv_is_encrypted(bs)) {
4853             term_printf("%s is encrypted.\n", bdrv_get_device_name(bs));
4854             for(j = 0; j < 3; j++) {
4855                 monitor_readline("Password: ",
4856                                  1, password, sizeof(password));
4857                 if (bdrv_set_key(bs, password) == 0)
4858                     break;
4859                 term_printf("invalid password\n");
4860             }
4861         }
4862     }
4863 }
4864
4865 /* XXX: currently we cannot use simultaneously different CPUs */
4866 void register_machines(void)
4867 {
4868 #if defined(TARGET_I386)
4869     qemu_register_machine(&pc_machine);
4870     qemu_register_machine(&isapc_machine);
4871 #elif defined(TARGET_PPC)
4872     qemu_register_machine(&heathrow_machine);
4873     qemu_register_machine(&core99_machine);
4874     qemu_register_machine(&prep_machine);
4875 #elif defined(TARGET_MIPS)
4876     qemu_register_machine(&mips_machine);
4877 #elif defined(TARGET_SPARC)
4878 #ifdef TARGET_SPARC64
4879     qemu_register_machine(&sun4u_machine);
4880 #else
4881     qemu_register_machine(&sun4m_machine);
4882 #endif
4883 #elif defined(TARGET_ARM)
4884     qemu_register_machine(&integratorcp926_machine);
4885     qemu_register_machine(&integratorcp1026_machine);
4886     qemu_register_machine(&versatilepb_machine);
4887 #else
4888 #error unsupported CPU
4889 #endif
4890 }
4891
4892 #ifdef HAS_AUDIO
4893 struct soundhw soundhw[] = {
4894     {
4895         "sb16",
4896         "Creative Sound Blaster 16",
4897         0,
4898         1,
4899         { .init_isa = SB16_init }
4900     },
4901
4902 #ifdef CONFIG_ADLIB
4903     {
4904         "adlib",
4905 #ifdef HAS_YMF262
4906         "Yamaha YMF262 (OPL3)",
4907 #else
4908         "Yamaha YM3812 (OPL2)",
4909 #endif
4910         0,
4911         1,
4912         { .init_isa = Adlib_init }
4913     },
4914 #endif
4915
4916 #ifdef CONFIG_GUS
4917     {
4918         "gus",
4919         "Gravis Ultrasound GF1",
4920         0,
4921         1,
4922         { .init_isa = GUS_init }
4923     },
4924 #endif
4925
4926     {
4927         "es1370",
4928         "ENSONIQ AudioPCI ES1370",
4929         0,
4930         0,
4931         { .init_pci = es1370_init }
4932     },
4933
4934     { NULL, NULL, 0, 0, { NULL } }
4935 };
4936
4937 static void select_soundhw (const char *optarg)
4938 {
4939     struct soundhw *c;
4940
4941     if (*optarg == '?') {
4942     show_valid_cards:
4943
4944         printf ("Valid sound card names (comma separated):\n");
4945         for (c = soundhw; c->name; ++c) {
4946             printf ("%-11s %s\n", c->name, c->descr);
4947         }
4948         printf ("\n-soundhw all will enable all of the above\n");
4949         exit (*optarg != '?');
4950     }
4951     else {
4952         size_t l;
4953         const char *p;
4954         char *e;
4955         int bad_card = 0;
4956
4957         if (!strcmp (optarg, "all")) {
4958             for (c = soundhw; c->name; ++c) {
4959                 c->enabled = 1;
4960             }
4961             return;
4962         }
4963
4964         p = optarg;
4965         while (*p) {
4966             e = strchr (p, ',');
4967             l = !e ? strlen (p) : (size_t) (e - p);
4968
4969             for (c = soundhw; c->name; ++c) {
4970                 if (!strncmp (c->name, p, l)) {
4971                     c->enabled = 1;
4972                     break;
4973                 }
4974             }
4975
4976             if (!c->name) {
4977                 if (l > 80) {
4978                     fprintf (stderr,
4979                              "Unknown sound card name (too big to show)\n");
4980                 }
4981                 else {
4982                     fprintf (stderr, "Unknown sound card name `%.*s'\n",
4983                              (int) l, p);
4984                 }
4985                 bad_card = 1;
4986             }
4987             p += l + (e != NULL);
4988         }
4989
4990         if (bad_card)
4991             goto show_valid_cards;
4992     }
4993 }
4994 #endif
4995
4996 #define MAX_NET_CLIENTS 32
4997
4998 int main(int argc, char **argv)
4999 {
5000 #ifdef CONFIG_GDBSTUB
5001     int use_gdbstub, gdbstub_port;
5002 #endif
5003     int i, cdrom_index;
5004     int snapshot, linux_boot;
5005     const char *initrd_filename;
5006     const char *hd_filename[MAX_DISKS], *fd_filename[MAX_FD];
5007     const char *kernel_filename, *kernel_cmdline;
5008     DisplayState *ds = &display_state;
5009     int cyls, heads, secs, translation;
5010     int start_emulation = 1;
5011     char net_clients[MAX_NET_CLIENTS][256];
5012     int nb_net_clients;
5013     int optind;
5014     const char *r, *optarg;
5015     CharDriverState *monitor_hd;
5016     char monitor_device[128];
5017     char serial_devices[MAX_SERIAL_PORTS][128];
5018     int serial_device_index;
5019     char parallel_devices[MAX_PARALLEL_PORTS][128];
5020     int parallel_device_index;
5021     const char *loadvm = NULL;
5022     QEMUMachine *machine;
5023     char usb_devices[MAX_VM_USB_PORTS][128];
5024     int usb_devices_index;
5025
5026     LIST_INIT (&vm_change_state_head);
5027 #if !defined(CONFIG_SOFTMMU)
5028     /* we never want that malloc() uses mmap() */
5029     mallopt(M_MMAP_THRESHOLD, 4096 * 1024);
5030 #endif
5031     register_machines();
5032     machine = first_machine;
5033     initrd_filename = NULL;
5034     for(i = 0; i < MAX_FD; i++)
5035         fd_filename[i] = NULL;
5036     for(i = 0; i < MAX_DISKS; i++)
5037         hd_filename[i] = NULL;
5038     ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
5039     vga_ram_size = VGA_RAM_SIZE;
5040     bios_size = BIOS_SIZE;
5041 #ifdef CONFIG_GDBSTUB
5042     use_gdbstub = 0;
5043     gdbstub_port = DEFAULT_GDBSTUB_PORT;
5044 #endif
5045     snapshot = 0;
5046     nographic = 0;
5047     kernel_filename = NULL;
5048     kernel_cmdline = "";
5049 #ifdef TARGET_PPC
5050     cdrom_index = 1;
5051 #else
5052     cdrom_index = 2;
5053 #endif
5054     cyls = heads = secs = 0;
5055     translation = BIOS_ATA_TRANSLATION_AUTO;
5056     pstrcpy(monitor_device, sizeof(monitor_device), "vc");
5057
5058     pstrcpy(serial_devices[0], sizeof(serial_devices[0]), "vc");
5059     for(i = 1; i < MAX_SERIAL_PORTS; i++)
5060         serial_devices[i][0] = '\0';
5061     serial_device_index = 0;
5062
5063     pstrcpy(parallel_devices[0], sizeof(parallel_devices[0]), "vc");
5064     for(i = 1; i < MAX_PARALLEL_PORTS; i++)
5065         parallel_devices[i][0] = '\0';
5066     parallel_device_index = 0;
5067
5068     usb_devices_index = 0;
5069
5070     nb_net_clients = 0;
5071
5072     nb_nics = 0;
5073     /* default mac address of the first network interface */
5074
5075     optind = 1;
5076     for(;;) {
5077         if (optind >= argc)
5078             break;
5079         r = argv[optind];
5080         if (r[0] != '-') {
5081             hd_filename[0] = argv[optind++];
5082         } else {
5083             const QEMUOption *popt;
5084
5085             optind++;
5086             popt = qemu_options;
5087             for(;;) {
5088                 if (!popt->name) {
5089                     fprintf(stderr, "%s: invalid option -- '%s'\n",
5090                             argv[0], r);
5091                     exit(1);
5092                 }
5093                 if (!strcmp(popt->name, r + 1))
5094                     break;
5095                 popt++;
5096             }
5097             if (popt->flags & HAS_ARG) {
5098                 if (optind >= argc) {
5099                     fprintf(stderr, "%s: option '%s' requires an argument\n",
5100                             argv[0], r);
5101                     exit(1);
5102                 }
5103                 optarg = argv[optind++];
5104             } else {
5105                 optarg = NULL;
5106             }
5107
5108             switch(popt->index) {
5109             case QEMU_OPTION_M:
5110                 machine = find_machine(optarg);
5111                 if (!machine) {
5112                     QEMUMachine *m;
5113                     printf("Supported machines are:\n");
5114                     for(m = first_machine; m != NULL; m = m->next) {
5115                         printf("%-10s %s%s\n",
5116                                m->name, m->desc,
5117                                m == first_machine ? " (default)" : "");
5118                     }
5119                     exit(1);
5120                 }
5121                 break;
5122             case QEMU_OPTION_initrd:
5123                 initrd_filename = optarg;
5124                 break;
5125             case QEMU_OPTION_hda:
5126             case QEMU_OPTION_hdb:
5127             case QEMU_OPTION_hdc:
5128             case QEMU_OPTION_hdd:
5129                 {
5130                     int hd_index;
5131                     hd_index = popt->index - QEMU_OPTION_hda;
5132                     hd_filename[hd_index] = optarg;
5133                     if (hd_index == cdrom_index)
5134                         cdrom_index = -1;
5135                 }
5136                 break;
5137             case QEMU_OPTION_snapshot:
5138                 snapshot = 1;
5139                 break;
5140             case QEMU_OPTION_hdachs:
5141                 {
5142                     const char *p;
5143                     p = optarg;
5144                     cyls = strtol(p, (char **)&p, 0);
5145                     if (cyls < 1 || cyls > 16383)
5146                         goto chs_fail;
5147                     if (*p != ',')
5148                         goto chs_fail;
5149                     p++;
5150                     heads = strtol(p, (char **)&p, 0);
5151                     if (heads < 1 || heads > 16)
5152                         goto chs_fail;
5153                     if (*p != ',')
5154                         goto chs_fail;
5155                     p++;
5156                     secs = strtol(p, (char **)&p, 0);
5157                     if (secs < 1 || secs > 63)
5158                         goto chs_fail;
5159                     if (*p == ',') {
5160                         p++;
5161                         if (!strcmp(p, "none"))
5162                             translation = BIOS_ATA_TRANSLATION_NONE;
5163                         else if (!strcmp(p, "lba"))
5164                             translation = BIOS_ATA_TRANSLATION_LBA;
5165                         else if (!strcmp(p, "auto"))
5166                             translation = BIOS_ATA_TRANSLATION_AUTO;
5167                         else
5168                             goto chs_fail;
5169                     } else if (*p != '\0') {
5170                     chs_fail:
5171                         fprintf(stderr, "qemu: invalid physical CHS format\n");
5172                         exit(1);
5173                     }
5174                 }
5175                 break;
5176             case QEMU_OPTION_nographic:
5177                 pstrcpy(monitor_device, sizeof(monitor_device), "stdio");
5178                 pstrcpy(serial_devices[0], sizeof(serial_devices[0]), "stdio");
5179                 nographic = 1;
5180                 break;
5181             case QEMU_OPTION_kernel:
5182                 kernel_filename = optarg;
5183                 break;
5184             case QEMU_OPTION_append:
5185                 kernel_cmdline = optarg;
5186                 break;
5187             case QEMU_OPTION_cdrom:
5188                 if (cdrom_index >= 0) {
5189                     hd_filename[cdrom_index] = optarg;
5190                 }
5191                 break;
5192             case QEMU_OPTION_boot:
5193                 boot_device = optarg[0];
5194                 if (boot_device != 'a' &&
5195 #ifdef TARGET_SPARC
5196                     // Network boot
5197                     boot_device != 'n' &&
5198 #endif
5199                     boot_device != 'c' && boot_device != 'd') {
5200                     fprintf(stderr, "qemu: invalid boot device '%c'\n", boot_device);
5201                     exit(1);
5202                 }
5203                 break;
5204             case QEMU_OPTION_fda:
5205                 fd_filename[0] = optarg;
5206                 break;
5207             case QEMU_OPTION_fdb:
5208                 fd_filename[1] = optarg;
5209                 break;
5210             case QEMU_OPTION_no_code_copy:
5211                 code_copy_enabled = 0;
5212                 break;
5213             case QEMU_OPTION_net:
5214                 if (nb_net_clients >= MAX_NET_CLIENTS) {
5215                     fprintf(stderr, "qemu: too many network clients\n");
5216                     exit(1);
5217                 }
5218                 pstrcpy(net_clients[nb_net_clients],
5219                         sizeof(net_clients[0]),
5220                         optarg);
5221                 nb_net_clients++;
5222                 break;
5223 #ifdef CONFIG_SLIRP
5224             case QEMU_OPTION_tftp:
5225                 tftp_prefix = optarg;
5226                 break;
5227 #ifndef _WIN32
5228             case QEMU_OPTION_smb:
5229                 net_slirp_smb(optarg);
5230                 break;
5231 #endif
5232             case QEMU_OPTION_redir:
5233                 net_slirp_redir(optarg);
5234                 break;
5235 #endif
5236 #ifdef HAS_AUDIO
5237             case QEMU_OPTION_audio_help:
5238                 AUD_help ();
5239                 exit (0);
5240                 break;
5241             case QEMU_OPTION_soundhw:
5242                 select_soundhw (optarg);
5243                 break;
5244 #endif
5245             case QEMU_OPTION_h:
5246                 help();
5247                 break;
5248             case QEMU_OPTION_m:
5249                 ram_size = atoi(optarg) * 1024 * 1024;
5250                 if (ram_size <= 0)
5251                     help();
5252                 if (ram_size > PHYS_RAM_MAX_SIZE) {
5253                     fprintf(stderr, "qemu: at most %d MB RAM can be simulated\n",
5254                             PHYS_RAM_MAX_SIZE / (1024 * 1024));
5255                     exit(1);
5256                 }
5257                 break;
5258             case QEMU_OPTION_d:
5259                 {
5260                     int mask;
5261                     CPULogItem *item;
5262
5263                     mask = cpu_str_to_log_mask(optarg);
5264                     if (!mask) {
5265                         printf("Log items (comma separated):\n");
5266                     for(item = cpu_log_items; item->mask != 0; item++) {
5267                         printf("%-10s %s\n", item->name, item->help);
5268                     }
5269                     exit(1);
5270                     }
5271                     cpu_set_log(mask);
5272                 }
5273                 break;
5274 #ifdef CONFIG_GDBSTUB
5275             case QEMU_OPTION_s:
5276                 use_gdbstub = 1;
5277                 break;
5278             case QEMU_OPTION_p:
5279                 gdbstub_port = atoi(optarg);
5280                 break;
5281 #endif
5282             case QEMU_OPTION_L:
5283                 bios_dir = optarg;
5284                 break;
5285             case QEMU_OPTION_S:
5286                 start_emulation = 0;
5287                 break;
5288             case QEMU_OPTION_k:
5289                 keyboard_layout = optarg;
5290                 break;
5291             case QEMU_OPTION_localtime:
5292                 rtc_utc = 0;
5293                 break;
5294             case QEMU_OPTION_cirrusvga:
5295                 cirrus_vga_enabled = 1;
5296                 break;
5297             case QEMU_OPTION_std_vga:
5298                 cirrus_vga_enabled = 0;
5299                 break;
5300             case QEMU_OPTION_g:
5301                 {
5302                     const char *p;
5303                     int w, h, depth;
5304                     p = optarg;
5305                     w = strtol(p, (char **)&p, 10);
5306                     if (w <= 0) {
5307                     graphic_error:
5308                         fprintf(stderr, "qemu: invalid resolution or depth\n");
5309                         exit(1);
5310                     }
5311                     if (*p != 'x')
5312                         goto graphic_error;
5313                     p++;
5314                     h = strtol(p, (char **)&p, 10);
5315                     if (h <= 0)
5316                         goto graphic_error;
5317                     if (*p == 'x') {
5318                         p++;
5319                         depth = strtol(p, (char **)&p, 10);
5320                         if (depth != 8 && depth != 15 && depth != 16 &&
5321                             depth != 24 && depth != 32)
5322                             goto graphic_error;
5323                     } else if (*p == '\0') {
5324                         depth = graphic_depth;
5325                     } else {
5326                         goto graphic_error;
5327                     }
5328
5329                     graphic_width = w;
5330                     graphic_height = h;
5331                     graphic_depth = depth;
5332                 }
5333                 break;
5334             case QEMU_OPTION_monitor:
5335                 pstrcpy(monitor_device, sizeof(monitor_device), optarg);
5336                 break;
5337             case QEMU_OPTION_serial:
5338                 if (serial_device_index >= MAX_SERIAL_PORTS) {
5339                     fprintf(stderr, "qemu: too many serial ports\n");
5340                     exit(1);
5341                 }
5342                 pstrcpy(serial_devices[serial_device_index],
5343                         sizeof(serial_devices[0]), optarg);
5344                 serial_device_index++;
5345                 break;
5346             case QEMU_OPTION_parallel:
5347                 if (parallel_device_index >= MAX_PARALLEL_PORTS) {
5348                     fprintf(stderr, "qemu: too many parallel ports\n");
5349                     exit(1);
5350                 }
5351                 pstrcpy(parallel_devices[parallel_device_index],
5352                         sizeof(parallel_devices[0]), optarg);
5353                 parallel_device_index++;
5354                 break;
5355             case QEMU_OPTION_loadvm:
5356                 loadvm = optarg;
5357                 break;
5358             case QEMU_OPTION_full_screen:
5359                 full_screen = 1;
5360                 break;
5361             case QEMU_OPTION_pidfile:
5362                 create_pidfile(optarg);
5363                 break;
5364 #ifdef TARGET_I386
5365             case QEMU_OPTION_win2k_hack:
5366                 win2k_install_hack = 1;
5367                 break;
5368 #endif
5369 #ifdef USE_KQEMU
5370             case QEMU_OPTION_no_kqemu:
5371                 kqemu_allowed = 0;
5372                 break;
5373             case QEMU_OPTION_kernel_kqemu:
5374                 kqemu_allowed = 2;
5375                 break;
5376 #endif
5377             case QEMU_OPTION_usb:
5378                 usb_enabled = 1;
5379                 break;
5380             case QEMU_OPTION_usbdevice:
5381                 usb_enabled = 1;
5382                 if (usb_devices_index >= MAX_VM_USB_PORTS) {
5383                     fprintf(stderr, "Too many USB devices\n");
5384                     exit(1);
5385                 }
5386                 pstrcpy(usb_devices[usb_devices_index],
5387                         sizeof(usb_devices[usb_devices_index]),
5388                         optarg);
5389                 usb_devices_index++;
5390                 break;
5391             case QEMU_OPTION_smp:
5392                 smp_cpus = atoi(optarg);
5393                 if (smp_cpus < 1 || smp_cpus > MAX_CPUS) {
5394                     fprintf(stderr, "Invalid number of CPUs\n");
5395                     exit(1);
5396                 }
5397                 break;
5398             }
5399         }
5400     }
5401
5402 #ifdef USE_KQEMU
5403     if (smp_cpus > 1)
5404         kqemu_allowed = 0;
5405 #endif
5406     linux_boot = (kernel_filename != NULL);
5407
5408     if (!linux_boot &&
5409         hd_filename[0] == '\0' &&
5410         (cdrom_index >= 0 && hd_filename[cdrom_index] == '\0') &&
5411         fd_filename[0] == '\0')
5412         help();
5413
5414     /* boot to cd by default if no hard disk */
5415     if (hd_filename[0] == '\0' && boot_device == 'c') {
5416         if (fd_filename[0] != '\0')
5417             boot_device = 'a';
5418         else
5419             boot_device = 'd';
5420     }
5421
5422 #if !defined(CONFIG_SOFTMMU)
5423     /* must avoid mmap() usage of glibc by setting a buffer "by hand" */
5424     {
5425         static uint8_t stdout_buf[4096];
5426         setvbuf(stdout, stdout_buf, _IOLBF, sizeof(stdout_buf));
5427     }
5428 #else
5429     setvbuf(stdout, NULL, _IOLBF, 0);
5430 #endif
5431
5432 #ifdef _WIN32
5433     socket_init();
5434 #endif
5435
5436     /* init network clients */
5437     if (nb_net_clients == 0) {
5438         /* if no clients, we use a default config */
5439         pstrcpy(net_clients[0], sizeof(net_clients[0]),
5440                 "nic");
5441         pstrcpy(net_clients[1], sizeof(net_clients[0]),
5442                 "user");
5443         nb_net_clients = 2;
5444     }
5445
5446     for(i = 0;i < nb_net_clients; i++) {
5447         if (net_client_init(net_clients[i]) < 0)
5448             exit(1);
5449     }
5450
5451     /* init the memory */
5452     phys_ram_size = ram_size + vga_ram_size + bios_size;
5453
5454 #ifdef CONFIG_SOFTMMU
5455     phys_ram_base = qemu_vmalloc(phys_ram_size);
5456     if (!phys_ram_base) {
5457         fprintf(stderr, "Could not allocate physical memory\n");
5458         exit(1);
5459     }
5460 #else
5461     /* as we must map the same page at several addresses, we must use
5462        a fd */
5463     {
5464         const char *tmpdir;
5465
5466         tmpdir = getenv("QEMU_TMPDIR");
5467         if (!tmpdir)
5468             tmpdir = "/tmp";
5469         snprintf(phys_ram_file, sizeof(phys_ram_file), "%s/vlXXXXXX", tmpdir);
5470         if (mkstemp(phys_ram_file) < 0) {
5471             fprintf(stderr, "Could not create temporary memory file '%s'\n",
5472                     phys_ram_file);
5473             exit(1);
5474         }
5475         phys_ram_fd = open(phys_ram_file, O_CREAT | O_TRUNC | O_RDWR, 0600);
5476         if (phys_ram_fd < 0) {
5477             fprintf(stderr, "Could not open temporary memory file '%s'\n",
5478                     phys_ram_file);
5479             exit(1);
5480         }
5481         ftruncate(phys_ram_fd, phys_ram_size);
5482         unlink(phys_ram_file);
5483         phys_ram_base = mmap(get_mmap_addr(phys_ram_size),
5484                              phys_ram_size,
5485                              PROT_WRITE | PROT_READ, MAP_SHARED | MAP_FIXED,
5486                              phys_ram_fd, 0);
5487         if (phys_ram_base == MAP_FAILED) {
5488             fprintf(stderr, "Could not map physical memory\n");
5489             exit(1);
5490         }
5491     }
5492 #endif
5493
5494     /* we always create the cdrom drive, even if no disk is there */
5495     bdrv_init();
5496     if (cdrom_index >= 0) {
5497         bs_table[cdrom_index] = bdrv_new("cdrom");
5498         bdrv_set_type_hint(bs_table[cdrom_index], BDRV_TYPE_CDROM);
5499     }
5500
5501     /* open the virtual block devices */
5502     for(i = 0; i < MAX_DISKS; i++) {
5503         if (hd_filename[i]) {
5504             if (!bs_table[i]) {
5505                 char buf[64];
5506                 snprintf(buf, sizeof(buf), "hd%c", i + 'a');
5507                 bs_table[i] = bdrv_new(buf);
5508             }
5509             if (bdrv_open(bs_table[i], hd_filename[i], snapshot) < 0) {
5510                 fprintf(stderr, "qemu: could not open hard disk image '%s'\n",
5511                         hd_filename[i]);
5512                 exit(1);
5513             }
5514             if (i == 0 && cyls != 0) {
5515                 bdrv_set_geometry_hint(bs_table[i], cyls, heads, secs);
5516                 bdrv_set_translation_hint(bs_table[i], translation);
5517             }
5518         }
5519     }
5520
5521     /* we always create at least one floppy disk */
5522     fd_table[0] = bdrv_new("fda");
5523     bdrv_set_type_hint(fd_table[0], BDRV_TYPE_FLOPPY);
5524
5525     for(i = 0; i < MAX_FD; i++) {
5526         if (fd_filename[i]) {
5527             if (!fd_table[i]) {
5528                 char buf[64];
5529                 snprintf(buf, sizeof(buf), "fd%c", i + 'a');
5530                 fd_table[i] = bdrv_new(buf);
5531                 bdrv_set_type_hint(fd_table[i], BDRV_TYPE_FLOPPY);
5532             }
5533             if (fd_filename[i] != '\0') {
5534                 if (bdrv_open(fd_table[i], fd_filename[i], snapshot) < 0) {
5535                     fprintf(stderr, "qemu: could not open floppy disk image '%s'\n",
5536                             fd_filename[i]);
5537                     exit(1);
5538                 }
5539             }
5540         }
5541     }
5542
5543     /* init USB devices */
5544     if (usb_enabled) {
5545         vm_usb_hub = usb_hub_init(vm_usb_ports, MAX_VM_USB_PORTS);
5546         for(i = 0; i < usb_devices_index; i++) {
5547             if (usb_device_add(usb_devices[i]) < 0) {
5548                 fprintf(stderr, "Warning: could not add USB device %s\n",
5549                         usb_devices[i]);
5550             }
5551         }
5552     }
5553
5554     register_savevm("timer", 0, 1, timer_save, timer_load, NULL);
5555     register_savevm("ram", 0, 1, ram_save, ram_load, NULL);
5556
5557     init_ioports();
5558     cpu_calibrate_ticks();
5559
5560     /* terminal init */
5561     if (nographic) {
5562         dumb_display_init(ds);
5563     } else {
5564 #if defined(CONFIG_SDL)
5565         sdl_display_init(ds, full_screen);
5566 #elif defined(CONFIG_COCOA)
5567         cocoa_display_init(ds, full_screen);
5568 #else
5569         dumb_display_init(ds);
5570 #endif
5571     }
5572
5573     monitor_hd = qemu_chr_open(monitor_device);
5574     if (!monitor_hd) {
5575         fprintf(stderr, "qemu: could not open monitor device '%s'\n", monitor_device);
5576         exit(1);
5577     }
5578     monitor_init(monitor_hd, !nographic);
5579
5580     for(i = 0; i < MAX_SERIAL_PORTS; i++) {
5581         if (serial_devices[i][0] != '\0') {
5582             serial_hds[i] = qemu_chr_open(serial_devices[i]);
5583             if (!serial_hds[i]) {
5584                 fprintf(stderr, "qemu: could not open serial device '%s'\n",
5585                         serial_devices[i]);
5586                 exit(1);
5587             }
5588             if (!strcmp(serial_devices[i], "vc"))
5589                 qemu_chr_printf(serial_hds[i], "serial%d console\n", i);
5590         }
5591     }
5592
5593     for(i = 0; i < MAX_PARALLEL_PORTS; i++) {
5594         if (parallel_devices[i][0] != '\0') {
5595             parallel_hds[i] = qemu_chr_open(parallel_devices[i]);
5596             if (!parallel_hds[i]) {
5597                 fprintf(stderr, "qemu: could not open parallel device '%s'\n",
5598                         parallel_devices[i]);
5599                 exit(1);
5600             }
5601             if (!strcmp(parallel_devices[i], "vc"))
5602                 qemu_chr_printf(parallel_hds[i], "parallel%d console\n", i);
5603         }
5604     }
5605
5606     /* setup cpu signal handlers for MMU / self modifying code handling */
5607 #if !defined(CONFIG_SOFTMMU)
5608
5609 #if defined (TARGET_I386) && defined(USE_CODE_COPY)
5610     {
5611         stack_t stk;
5612         signal_stack = memalign(16, SIGNAL_STACK_SIZE);
5613         stk.ss_sp = signal_stack;
5614         stk.ss_size = SIGNAL_STACK_SIZE;
5615         stk.ss_flags = 0;
5616
5617         if (sigaltstack(&stk, NULL) < 0) {
5618             perror("sigaltstack");
5619             exit(1);
5620         }
5621     }
5622 #endif
5623     {
5624         struct sigaction act;
5625
5626         sigfillset(&act.sa_mask);
5627         act.sa_flags = SA_SIGINFO;
5628 #if defined (TARGET_I386) && defined(USE_CODE_COPY)
5629         act.sa_flags |= SA_ONSTACK;
5630 #endif
5631         act.sa_sigaction = host_segv_handler;
5632         sigaction(SIGSEGV, &act, NULL);
5633         sigaction(SIGBUS, &act, NULL);
5634 #if defined (TARGET_I386) && defined(USE_CODE_COPY)
5635         sigaction(SIGFPE, &act, NULL);
5636 #endif
5637     }
5638 #endif
5639
5640 #ifndef _WIN32
5641     {
5642         struct sigaction act;
5643         sigfillset(&act.sa_mask);
5644         act.sa_flags = 0;
5645         act.sa_handler = SIG_IGN;
5646         sigaction(SIGPIPE, &act, NULL);
5647     }
5648 #endif
5649     init_timers();
5650
5651     machine->init(ram_size, vga_ram_size, boot_device,
5652                   ds, fd_filename, snapshot,
5653                   kernel_filename, kernel_cmdline, initrd_filename);
5654
5655     gui_timer = qemu_new_timer(rt_clock, gui_update, NULL);
5656     qemu_mod_timer(gui_timer, qemu_get_clock(rt_clock));
5657
5658 #ifdef CONFIG_GDBSTUB
5659     if (use_gdbstub) {
5660         if (gdbserver_start(gdbstub_port) < 0) {
5661             fprintf(stderr, "Could not open gdbserver socket on port %d\n",
5662                     gdbstub_port);
5663             exit(1);
5664         } else {
5665             printf("Waiting gdb connection on port %d\n", gdbstub_port);
5666         }
5667     } else
5668 #endif
5669     if (loadvm)
5670         qemu_loadvm(loadvm);
5671
5672     {
5673         /* XXX: simplify init */
5674         read_passwords();
5675         if (start_emulation) {
5676             vm_start();
5677         }
5678     }
5679     main_loop();
5680     quit_timers();
5681     return 0;
5682 }