1 /* 2 * QEMU System Emulator 3 * 4 * Copyright (c) 2003-2008 Fabrice Bellard 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a copy 7 * of this software and associated documentation files (the "Software"), to deal 8 * in the Software without restriction, including without limitation the rights 9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 10 * copies of the Software, and to permit persons to whom the Software is 11 * furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 22 * THE SOFTWARE. 23 */ 24 25 /* the following is needed on Linux to define ptsname() in stdlib.h */ 26 #if defined(__linux__) 27 #define _GNU_SOURCE 1 28 #endif 29 30 #include "qemu-common.h" 31 #include "hw/hw.h" 32 #include "hw/boards.h" 33 #include "hw/usb.h" 34 #include "hw/pcmcia.h" 35 #include "hw/pc.h" 36 #include "hw/audiodev.h" 37 #include "hw/isa.h" 38 #include "hw/baum.h" 39 #include "hw/goldfish_nand.h" 40 #include "net.h" 41 #include "console.h" 42 #include "sysemu.h" 43 #include "gdbstub.h" 44 #include "qemu-timer.h" 45 #include "qemu-char.h" 46 #include "block.h" 47 #include "audio/audio.h" 48 49 #include "qemu_file.h" 50 #include "android/android.h" 51 #include "charpipe.h" 52 #include "shaper.h" 53 #include "modem_driver.h" 54 #include "android/gps.h" 55 #include "android/hw-qemud.h" 56 #include "android/hw-kmsg.h" 57 #include "tcpdump.h" 58 #include "targphys.h" 59 60 #include <unistd.h> 61 #include <fcntl.h> 62 #include <signal.h> 63 #include <time.h> 64 #include <errno.h> 65 #include <sys/time.h> 66 #include <zlib.h> 67 68 /* Needed early for HOST_BSD etc. */ 69 #include "config-host.h" 70 71 #ifndef _WIN32 72 #include <libgen.h> 73 #include <pwd.h> 74 #include <sys/times.h> 75 #include <sys/wait.h> 76 #include <termios.h> 77 #include <sys/mman.h> 78 #include <sys/ioctl.h> 79 #include <sys/resource.h> 80 #include <sys/socket.h> 81 #include <netinet/in.h> 82 #include <net/if.h> 83 #if defined(__NetBSD__) 84 #include <net/if_tap.h> 85 #endif 86 #ifdef __linux__ 87 #include <linux/if_tun.h> 88 #endif 89 #include <arpa/inet.h> 90 #include <dirent.h> 91 #include <netdb.h> 92 #include <sys/select.h> 93 #ifdef HOST_BSD 94 #include <sys/stat.h> 95 #if defined(__FreeBSD__) || defined(__DragonFly__) 96 #include <libutil.h> 97 #else 98 #include <util.h> 99 #endif 100 #elif defined (__GLIBC__) && defined (__FreeBSD_kernel__) 101 #include <freebsd/stdlib.h> 102 #else 103 #ifdef __linux__ 104 #include <pty.h> 105 #include <malloc.h> 106 #include <linux/rtc.h> 107 108 /* For the benefit of older linux systems which don't supply it, 109 we use a local copy of hpet.h. */ 110 /* #include <linux/hpet.h> */ 111 #include "hpet.h" 112 113 #include <linux/ppdev.h> 114 #include <linux/parport.h> 115 #endif 116 #ifdef __sun__ 117 #include <sys/stat.h> 118 #include <sys/ethernet.h> 119 #include <sys/sockio.h> 120 #include <netinet/arp.h> 121 #include <netinet/in.h> 122 #include <netinet/in_systm.h> 123 #include <netinet/ip.h> 124 #include <netinet/ip_icmp.h> // must come after ip.h 125 #include <netinet/udp.h> 126 #include <netinet/tcp.h> 127 #include <net/if.h> 128 #include <syslog.h> 129 #include <stropts.h> 130 #endif 131 #endif 132 #endif 133 134 #if defined(__OpenBSD__) 135 #include <util.h> 136 #endif 137 138 #if defined(CONFIG_VDE) 139 #include <libvdeplug.h> 140 #endif 141 142 #ifdef _WIN32 143 #include <windows.h> 144 #include <malloc.h> 145 #include <sys/timeb.h> 146 #include <mmsystem.h> 147 #define getopt_long_only getopt_long 148 #define memalign(align, size) malloc(size) 149 #endif 150 151 152 #ifdef CONFIG_COCOA 153 #undef main 154 #define main qemu_main 155 #endif /* CONFIG_COCOA */ 156 157 #include "hw/hw.h" 158 #include "hw/boards.h" 159 #include "hw/usb.h" 160 #include "hw/pcmcia.h" 161 #include "hw/pc.h" 162 #include "hw/audiodev.h" 163 #include "hw/isa.h" 164 #include "hw/baum.h" 165 #include "hw/bt.h" 166 #include "hw/watchdog.h" 167 #include "hw/smbios.h" 168 #include "hw/xen.h" 169 #include "bt-host.h" 170 #include "net.h" 171 #include "monitor.h" 172 #include "console.h" 173 #include "sysemu.h" 174 #include "gdbstub.h" 175 #include "qemu-timer.h" 176 #include "qemu-char.h" 177 #include "cache-utils.h" 178 #include "block.h" 179 #include "dma.h" 180 #include "audio/audio.h" 181 #include "migration.h" 182 #include "kvm.h" 183 #include "balloon.h" 184 185 #ifdef CONFIG_SKINS 186 #undef main 187 #define main qemu_main 188 #endif 189 190 #include "disas.h" 191 192 #include "exec-all.h" 193 194 #ifdef CONFIG_TRACE 195 #include "trace.h" 196 #include "dcache.h" 197 #endif 198 199 #include "qemu_socket.h" 200 201 #if defined(CONFIG_SLIRP) 202 #include "libslirp.h" 203 #endif 204 205 //#define DEBUG_UNUSED_IOPORT 206 //#define DEBUG_IOPORT 207 //#define DEBUG_NET 208 //#define DEBUG_SLIRP 209 210 211 #ifdef DEBUG_IOPORT 212 # define LOG_IOPORT(...) qemu_log_mask(CPU_LOG_IOPORT, ## __VA_ARGS__) 213 #else 214 # define LOG_IOPORT(...) do { } while (0) 215 #endif 216 217 #define DEFAULT_RAM_SIZE 128 218 219 /* Max number of USB devices that can be specified on the commandline. */ 220 #define MAX_USB_CMDLINE 8 221 222 /* Max number of bluetooth switches on the commandline. */ 223 #define MAX_BT_CMDLINE 10 224 225 /* XXX: use a two level table to limit memory usage */ 226 #define MAX_IOPORTS 65536 227 228 static const char *data_dir; 229 const char *bios_name = NULL; 230 static void *ioport_opaque[MAX_IOPORTS]; 231 static IOPortReadFunc *ioport_read_table[3][MAX_IOPORTS]; 232 static IOPortWriteFunc *ioport_write_table[3][MAX_IOPORTS]; 233 /* Note: drives_table[MAX_DRIVES] is a dummy block driver if none available 234 to store the VM snapshots */ 235 DriveInfo drives_table[MAX_DRIVES+1]; 236 int nb_drives; 237 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB; 238 static DisplayState *display_state; 239 DisplayType display_type = DT_DEFAULT; 240 const char* keyboard_layout = NULL; 241 int64_t ticks_per_sec; 242 ram_addr_t ram_size; 243 int nb_nics; 244 NICInfo nd_table[MAX_NICS]; 245 int vm_running; 246 static int autostart; 247 static int rtc_utc = 1; 248 static int rtc_date_offset = -1; /* -1 means no change */ 249 int cirrus_vga_enabled = 1; 250 int std_vga_enabled = 0; 251 int vmsvga_enabled = 0; 252 int xenfb_enabled = 0; 253 #ifdef TARGET_SPARC 254 int graphic_width = 1024; 255 int graphic_height = 768; 256 int graphic_depth = 8; 257 #else 258 int graphic_width = 800; 259 int graphic_height = 600; 260 int graphic_depth = 15; 261 #endif 262 static int full_screen = 0; 263 #ifdef CONFIG_SDL 264 static int no_frame = 0; 265 #endif 266 int no_quit = 0; 267 CharDriverState *serial_hds[MAX_SERIAL_PORTS]; 268 CharDriverState *parallel_hds[MAX_PARALLEL_PORTS]; 269 CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES]; 270 #ifdef TARGET_I386 271 int win2k_install_hack = 0; 272 int rtc_td_hack = 0; 273 #endif 274 int usb_enabled = 0; 275 int singlestep = 0; 276 int smp_cpus = 1; 277 const char *vnc_display; 278 int acpi_enabled = 1; 279 int no_hpet = 0; 280 int no_virtio_balloon = 0; 281 int fd_bootchk = 1; 282 int no_reboot = 0; 283 int no_shutdown = 0; 284 int cursor_hide = 1; 285 int graphic_rotate = 0; 286 #ifndef _WIN32 287 int daemonize = 0; 288 #endif 289 WatchdogTimerModel *watchdog = NULL; 290 int watchdog_action = WDT_RESET; 291 const char *option_rom[MAX_OPTION_ROMS]; 292 int nb_option_roms; 293 int semihosting_enabled = 0; 294 #ifdef TARGET_ARM 295 int old_param = 0; 296 #endif 297 const char *qemu_name; 298 int alt_grab = 0; 299 #if defined(TARGET_SPARC) || defined(TARGET_PPC) 300 unsigned int nb_prom_envs = 0; 301 const char *prom_envs[MAX_PROM_ENVS]; 302 #endif 303 int nb_drives_opt; 304 struct drive_opt drives_opt[MAX_DRIVES]; 305 306 int nb_numa_nodes; 307 uint64_t node_mem[MAX_NODES]; 308 uint64_t node_cpumask[MAX_NODES]; 309 310 static CPUState *cur_cpu; 311 static CPUState *next_cpu; 312 static int timer_alarm_pending = 1; 313 /* Conversion factor from emulated instructions to virtual clock ticks. */ 314 static int icount_time_shift; 315 /* Arbitrarily pick 1MIPS as the minimum allowable speed. */ 316 #define MAX_ICOUNT_SHIFT 10 317 /* Compensate for varying guest execution speed. */ 318 static int64_t qemu_icount_bias; 319 static QEMUTimer *icount_rt_timer; 320 static QEMUTimer *icount_vm_timer; 321 static QEMUTimer *nographic_timer; 322 323 uint8_t qemu_uuid[16]; 324 325 326 extern int qemu_cpu_delay; 327 extern char* audio_input_source; 328 329 extern void dprint( const char* format, ... ); 330 331 #define TFR(expr) do { if ((expr) != -1) break; } while (errno == EINTR) 332 333 /***********************************************************/ 334 /* x86 ISA bus support */ 335 336 target_phys_addr_t isa_mem_base = 0; 337 PicState2 *isa_pic; 338 339 static IOPortReadFunc default_ioport_readb, default_ioport_readw, default_ioport_readl; 340 static IOPortWriteFunc default_ioport_writeb, default_ioport_writew, default_ioport_writel; 341 342 static uint32_t ioport_read(int index, uint32_t address) 343 { 344 static IOPortReadFunc *default_func[3] = { 345 default_ioport_readb, 346 default_ioport_readw, 347 default_ioport_readl 348 }; 349 IOPortReadFunc *func = ioport_read_table[index][address]; 350 if (!func) 351 func = default_func[index]; 352 return func(ioport_opaque[address], address); 353 } 354 355 static void ioport_write(int index, uint32_t address, uint32_t data) 356 { 357 static IOPortWriteFunc *default_func[3] = { 358 default_ioport_writeb, 359 default_ioport_writew, 360 default_ioport_writel 361 }; 362 IOPortWriteFunc *func = ioport_write_table[index][address]; 363 if (!func) 364 func = default_func[index]; 365 func(ioport_opaque[address], address, data); 366 } 367 368 static uint32_t default_ioport_readb(void *opaque, uint32_t address) 369 { 370 #ifdef DEBUG_UNUSED_IOPORT 371 fprintf(stderr, "unused inb: port=0x%04x\n", address); 372 #endif 373 return 0xff; 374 } 375 376 static void default_ioport_writeb(void *opaque, uint32_t address, uint32_t data) 377 { 378 #ifdef DEBUG_UNUSED_IOPORT 379 fprintf(stderr, "unused outb: port=0x%04x data=0x%02x\n", address, data); 380 #endif 381 } 382 383 /* default is to make two byte accesses */ 384 static uint32_t default_ioport_readw(void *opaque, uint32_t address) 385 { 386 uint32_t data; 387 data = ioport_read(0, address); 388 address = (address + 1) & (MAX_IOPORTS - 1); 389 data |= ioport_read(0, address) << 8; 390 return data; 391 } 392 393 static void default_ioport_writew(void *opaque, uint32_t address, uint32_t data) 394 { 395 ioport_write(0, address, data & 0xff); 396 address = (address + 1) & (MAX_IOPORTS - 1); 397 ioport_write(0, address, (data >> 8) & 0xff); 398 } 399 400 static uint32_t default_ioport_readl(void *opaque, uint32_t address) 401 { 402 #ifdef DEBUG_UNUSED_IOPORT 403 fprintf(stderr, "unused inl: port=0x%04x\n", address); 404 #endif 405 return 0xffffffff; 406 } 407 408 static void default_ioport_writel(void *opaque, uint32_t address, uint32_t data) 409 { 410 #ifdef DEBUG_UNUSED_IOPORT 411 fprintf(stderr, "unused outl: port=0x%04x data=0x%02x\n", address, data); 412 #endif 413 } 414 415 /* size is the word size in byte */ 416 int register_ioport_read(int start, int length, int size, 417 IOPortReadFunc *func, void *opaque) 418 { 419 int i, bsize; 420 421 if (size == 1) { 422 bsize = 0; 423 } else if (size == 2) { 424 bsize = 1; 425 } else if (size == 4) { 426 bsize = 2; 427 } else { 428 hw_error("register_ioport_read: invalid size"); 429 return -1; 430 } 431 for(i = start; i < start + length; i += size) { 432 ioport_read_table[bsize][i] = func; 433 if (ioport_opaque[i] != NULL && ioport_opaque[i] != opaque) 434 hw_error("register_ioport_read: invalid opaque"); 435 ioport_opaque[i] = opaque; 436 } 437 return 0; 438 } 439 440 /* size is the word size in byte */ 441 int register_ioport_write(int start, int length, int size, 442 IOPortWriteFunc *func, void *opaque) 443 { 444 int i, bsize; 445 446 if (size == 1) { 447 bsize = 0; 448 } else if (size == 2) { 449 bsize = 1; 450 } else if (size == 4) { 451 bsize = 2; 452 } else { 453 hw_error("register_ioport_write: invalid size"); 454 return -1; 455 } 456 for(i = start; i < start + length; i += size) { 457 ioport_write_table[bsize][i] = func; 458 if (ioport_opaque[i] != NULL && ioport_opaque[i] != opaque) 459 hw_error("register_ioport_write: invalid opaque"); 460 ioport_opaque[i] = opaque; 461 } 462 return 0; 463 } 464 465 void isa_unassign_ioport(int start, int length) 466 { 467 int i; 468 469 for(i = start; i < start + length; i++) { 470 ioport_read_table[0][i] = default_ioport_readb; 471 ioport_read_table[1][i] = default_ioport_readw; 472 ioport_read_table[2][i] = default_ioport_readl; 473 474 ioport_write_table[0][i] = default_ioport_writeb; 475 ioport_write_table[1][i] = default_ioport_writew; 476 ioport_write_table[2][i] = default_ioport_writel; 477 478 ioport_opaque[i] = NULL; 479 } 480 } 481 482 /***********************************************************/ 483 484 void cpu_outb(CPUState *env, int addr, int val) 485 { 486 LOG_IOPORT("outb: %04x %02x\n", addr, val); 487 ioport_write(0, addr, val); 488 #ifdef CONFIG_KQEMU 489 if (env) 490 env->last_io_time = cpu_get_time_fast(); 491 #endif 492 } 493 494 void cpu_outw(CPUState *env, int addr, int val) 495 { 496 LOG_IOPORT("outw: %04x %04x\n", addr, val); 497 ioport_write(1, addr, val); 498 #ifdef CONFIG_KQEMU 499 if (env) 500 env->last_io_time = cpu_get_time_fast(); 501 #endif 502 } 503 504 void cpu_outl(CPUState *env, int addr, int val) 505 { 506 LOG_IOPORT("outl: %04x %08x\n", addr, val); 507 ioport_write(2, addr, val); 508 #ifdef CONFIG_KQEMU 509 if (env) 510 env->last_io_time = cpu_get_time_fast(); 511 #endif 512 } 513 514 int cpu_inb(CPUState *env, int addr) 515 { 516 int val; 517 val = ioport_read(0, addr); 518 LOG_IOPORT("inb : %04x %02x\n", addr, val); 519 #ifdef CONFIG_KQEMU 520 if (env) 521 env->last_io_time = cpu_get_time_fast(); 522 #endif 523 return val; 524 } 525 526 int cpu_inw(CPUState *env, int addr) 527 { 528 int val; 529 val = ioport_read(1, addr); 530 LOG_IOPORT("inw : %04x %04x\n", addr, val); 531 #ifdef CONFIG_KQEMU 532 if (env) 533 env->last_io_time = cpu_get_time_fast(); 534 #endif 535 return val; 536 } 537 538 int cpu_inl(CPUState *env, int addr) 539 { 540 int val; 541 val = ioport_read(2, addr); 542 LOG_IOPORT("inl : %04x %08x\n", addr, val); 543 #ifdef CONFIG_KQEMU 544 if (env) 545 env->last_io_time = cpu_get_time_fast(); 546 #endif 547 return val; 548 } 549 550 /***********************************************************/ 551 void hw_error(const char *fmt, ...) 552 { 553 va_list ap; 554 CPUState *env; 555 556 va_start(ap, fmt); 557 fprintf(stderr, "qemu: hardware error: "); 558 vfprintf(stderr, fmt, ap); 559 fprintf(stderr, "\n"); 560 for(env = first_cpu; env != NULL; env = env->next_cpu) { 561 fprintf(stderr, "CPU #%d:\n", env->cpu_index); 562 #ifdef TARGET_I386 563 cpu_dump_state(env, stderr, fprintf, X86_DUMP_FPU); 564 #else 565 cpu_dump_state(env, stderr, fprintf, 0); 566 #endif 567 } 568 va_end(ap); 569 abort(); 570 } 571 572 /***************/ 573 /* ballooning */ 574 575 static QEMUBalloonEvent *qemu_balloon_event; 576 void *qemu_balloon_event_opaque; 577 578 void qemu_add_balloon_handler(QEMUBalloonEvent *func, void *opaque) 579 { 580 qemu_balloon_event = func; 581 qemu_balloon_event_opaque = opaque; 582 } 583 584 void qemu_balloon(ram_addr_t target) 585 { 586 if (qemu_balloon_event) 587 qemu_balloon_event(qemu_balloon_event_opaque, target); 588 } 589 590 ram_addr_t qemu_balloon_status(void) 591 { 592 if (qemu_balloon_event) 593 return qemu_balloon_event(qemu_balloon_event_opaque, 0); 594 return 0; 595 } 596 597 /***********************************************************/ 598 /* keyboard/mouse */ 599 600 static QEMUPutKBDEvent* qemu_put_kbd_event; 601 static void* qemu_put_kbd_event_opaque; 602 603 static QEMUPutKBDEventN* qemu_put_kbd_event_n; 604 static void* qemu_put_kbd_event_n_opaque; 605 606 607 static QEMUPutGenericEvent* qemu_put_generic_event; 608 static void* qemu_put_generic_event_opaque; 609 610 static QEMUPutMouseEntry *qemu_put_mouse_event_head; 611 static QEMUPutMouseEntry *qemu_put_mouse_event_current; 612 613 void qemu_add_kbd_event_handler(QEMUPutKBDEvent *func, void *opaque) 614 { 615 qemu_put_kbd_event_opaque = opaque; 616 qemu_put_kbd_event = func; 617 } 618 619 void qemu_add_kbd_event_n_handler(QEMUPutKBDEventN *func, void *opaque) 620 { 621 qemu_put_kbd_event_n_opaque = opaque; 622 qemu_put_kbd_event_n = func; 623 } 624 625 #if 0 626 void qemu_add_mouse_event_handler(QEMUPutMouseEvent *func, void *opaque, int absolute) 627 { 628 qemu_put_mouse_event_opaque = opaque; 629 qemu_put_mouse_event = func; 630 qemu_put_mouse_event_absolute = absolute; 631 } 632 #else 633 QEMUPutMouseEntry *qemu_add_mouse_event_handler(QEMUPutMouseEvent *func, 634 void *opaque, int absolute, 635 const char *name) 636 { 637 QEMUPutMouseEntry *s, *cursor; 638 639 s = qemu_mallocz(sizeof(QEMUPutMouseEntry)); 640 if (!s) 641 return NULL; 642 643 s->qemu_put_mouse_event = func; 644 s->qemu_put_mouse_event_opaque = opaque; 645 s->qemu_put_mouse_event_absolute = absolute; 646 s->qemu_put_mouse_event_name = qemu_strdup(name); 647 s->next = NULL; 648 649 if (!qemu_put_mouse_event_head) { 650 qemu_put_mouse_event_head = qemu_put_mouse_event_current = s; 651 return s; 652 } 653 654 cursor = qemu_put_mouse_event_head; 655 while (cursor->next != NULL) 656 cursor = cursor->next; 657 658 cursor->next = s; 659 qemu_put_mouse_event_current = s; 660 661 return s; 662 } 663 664 void qemu_remove_mouse_event_handler(QEMUPutMouseEntry *entry) 665 { 666 QEMUPutMouseEntry *prev = NULL, *cursor; 667 668 if (!qemu_put_mouse_event_head || entry == NULL) 669 return; 670 671 cursor = qemu_put_mouse_event_head; 672 while (cursor != NULL && cursor != entry) { 673 prev = cursor; 674 cursor = cursor->next; 675 } 676 677 if (cursor == NULL) // does not exist or list empty 678 return; 679 else if (prev == NULL) { // entry is head 680 qemu_put_mouse_event_head = cursor->next; 681 if (qemu_put_mouse_event_current == entry) 682 qemu_put_mouse_event_current = cursor->next; 683 qemu_free(entry->qemu_put_mouse_event_name); 684 qemu_free(entry); 685 return; 686 } 687 688 prev->next = entry->next; 689 690 if (qemu_put_mouse_event_current == entry) 691 qemu_put_mouse_event_current = prev; 692 693 qemu_free(entry->qemu_put_mouse_event_name); 694 qemu_free(entry); 695 } 696 #endif 697 698 void qemu_add_generic_event_handler(QEMUPutGenericEvent *func, void* opaque) 699 { 700 qemu_put_generic_event = func; 701 qemu_put_generic_event_opaque = opaque; 702 } 703 704 void kbd_put_keycode(int keycode) 705 { 706 if (qemu_put_kbd_event) { 707 qemu_put_kbd_event(qemu_put_kbd_event_opaque, keycode); 708 } 709 } 710 711 void kbd_put_keycodes(int* keycodes, int count) 712 { 713 if (qemu_put_kbd_event_n) 714 { 715 qemu_put_kbd_event_n(qemu_put_kbd_event_n_opaque, keycodes, count); 716 } 717 else if (qemu_put_kbd_event) 718 { 719 int nn; 720 721 for (nn = 0; nn < count; nn++) 722 qemu_put_kbd_event(qemu_put_kbd_event_opaque, keycodes[nn]); 723 } 724 } 725 726 727 void kbd_generic_event(int type, int code, int value) 728 { 729 if (qemu_put_generic_event) 730 qemu_put_generic_event(qemu_put_generic_event_opaque, type, code, value); 731 } 732 733 734 void kbd_mouse_event(int dx, int dy, int dz, int buttons_state) 735 { 736 QEMUPutMouseEvent *mouse_event; 737 void *mouse_event_opaque; 738 int width; 739 740 if (!qemu_put_mouse_event_current) { 741 return; 742 } 743 744 mouse_event = 745 qemu_put_mouse_event_current->qemu_put_mouse_event; 746 mouse_event_opaque = 747 qemu_put_mouse_event_current->qemu_put_mouse_event_opaque; 748 749 if (mouse_event) { 750 if (graphic_rotate) { 751 if (qemu_put_mouse_event_current->qemu_put_mouse_event_absolute) 752 width = 0x7fff; 753 else 754 width = graphic_width - 1; 755 mouse_event(mouse_event_opaque, 756 width - dy, dx, dz, buttons_state); 757 } else 758 mouse_event(mouse_event_opaque, 759 dx, dy, dz, buttons_state); 760 } 761 } 762 763 int kbd_mouse_is_absolute(void) 764 { 765 if (!qemu_put_mouse_event_current) 766 return 0; 767 768 return qemu_put_mouse_event_current->qemu_put_mouse_event_absolute; 769 } 770 771 void do_info_mice(Monitor *mon) 772 { 773 QEMUPutMouseEntry *cursor; 774 int index = 0; 775 776 if (!qemu_put_mouse_event_head) { 777 monitor_printf(mon, "No mouse devices connected\n"); 778 return; 779 } 780 781 monitor_printf(mon, "Mouse devices available:\n"); 782 cursor = qemu_put_mouse_event_head; 783 while (cursor != NULL) { 784 monitor_printf(mon, "%c Mouse #%d: %s\n", 785 (cursor == qemu_put_mouse_event_current ? '*' : ' '), 786 index, cursor->qemu_put_mouse_event_name); 787 index++; 788 cursor = cursor->next; 789 } 790 } 791 792 void do_mouse_set(Monitor *mon, int index) 793 { 794 QEMUPutMouseEntry *cursor; 795 int i = 0; 796 797 if (!qemu_put_mouse_event_head) { 798 monitor_printf(mon, "No mouse devices connected\n"); 799 return; 800 } 801 802 cursor = qemu_put_mouse_event_head; 803 while (cursor != NULL && index != i) { 804 i++; 805 cursor = cursor->next; 806 } 807 808 if (cursor != NULL) 809 qemu_put_mouse_event_current = cursor; 810 else 811 monitor_printf(mon, "Mouse at given index not found\n"); 812 } 813 814 /* compute with 96 bit intermediate result: (a*b)/c */ 815 uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c) 816 { 817 union { 818 uint64_t ll; 819 struct { 820 #ifdef WORDS_BIGENDIAN 821 uint32_t high, low; 822 #else 823 uint32_t low, high; 824 #endif 825 } l; 826 } u, res; 827 uint64_t rl, rh; 828 829 u.ll = a; 830 rl = (uint64_t)u.l.low * (uint64_t)b; 831 rh = (uint64_t)u.l.high * (uint64_t)b; 832 rh += (rl >> 32); 833 res.l.high = rh / c; 834 res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c; 835 return res.ll; 836 } 837 838 /***********************************************************/ 839 /* real time host monotonic timer */ 840 841 #define QEMU_TIMER_BASE 1000000000LL 842 843 #ifdef WIN32 844 845 static int64_t clock_freq; 846 847 static void init_get_clock(void) 848 { 849 LARGE_INTEGER freq; 850 int ret; 851 ret = QueryPerformanceFrequency(&freq); 852 if (ret == 0) { 853 fprintf(stderr, "Could not calibrate ticks\n"); 854 exit(1); 855 } 856 clock_freq = freq.QuadPart; 857 } 858 859 static int64_t get_clock(void) 860 { 861 LARGE_INTEGER ti; 862 QueryPerformanceCounter(&ti); 863 return muldiv64(ti.QuadPart, QEMU_TIMER_BASE, clock_freq); 864 } 865 866 #else 867 868 static int use_rt_clock; 869 870 static void init_get_clock(void) 871 { 872 use_rt_clock = 0; 873 #if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000) \ 874 || defined(__DragonFly__) 875 { 876 struct timespec ts; 877 if (clock_gettime(CLOCK_MONOTONIC, &ts) == 0) { 878 use_rt_clock = 1; 879 } 880 } 881 #endif 882 } 883 884 static int64_t get_clock(void) 885 { 886 #if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000) \ 887 || defined(__DragonFly__) 888 if (use_rt_clock) { 889 struct timespec ts; 890 clock_gettime(CLOCK_MONOTONIC, &ts); 891 return ts.tv_sec * 1000000000LL + ts.tv_nsec; 892 } else 893 #endif 894 { 895 /* XXX: using gettimeofday leads to problems if the date 896 changes, so it should be avoided. */ 897 struct timeval tv; 898 gettimeofday(&tv, NULL); 899 return tv.tv_sec * 1000000000LL + (tv.tv_usec * 1000); 900 } 901 } 902 #endif 903 904 /* Return the virtual CPU time, based on the instruction counter. */ 905 static int64_t cpu_get_icount(void) 906 { 907 int64_t icount; 908 CPUState *env = cpu_single_env;; 909 icount = qemu_icount; 910 if (env) { 911 if (!can_do_io(env)) 912 fprintf(stderr, "Bad clock read\n"); 913 icount -= (env->icount_decr.u16.low + env->icount_extra); 914 } 915 return qemu_icount_bias + (icount << icount_time_shift); 916 } 917 918 /***********************************************************/ 919 /* guest cycle counter */ 920 921 static int64_t cpu_ticks_prev; 922 static int64_t cpu_ticks_offset; 923 static int64_t cpu_clock_offset; 924 static int cpu_ticks_enabled; 925 926 /* return the host CPU cycle counter and handle stop/restart */ 927 int64_t cpu_get_ticks(void) 928 { 929 if (use_icount) { 930 return cpu_get_icount(); 931 } 932 if (!cpu_ticks_enabled) { 933 return cpu_ticks_offset; 934 } else { 935 int64_t ticks; 936 ticks = cpu_get_real_ticks(); 937 if (cpu_ticks_prev > ticks) { 938 /* Note: non increasing ticks may happen if the host uses 939 software suspend */ 940 cpu_ticks_offset += cpu_ticks_prev - ticks; 941 } 942 cpu_ticks_prev = ticks; 943 return ticks + cpu_ticks_offset; 944 } 945 } 946 947 /* return the host CPU monotonic timer and handle stop/restart */ 948 static int64_t cpu_get_clock(void) 949 { 950 int64_t ti; 951 if (!cpu_ticks_enabled) { 952 return cpu_clock_offset; 953 } else { 954 ti = get_clock(); 955 return ti + cpu_clock_offset; 956 } 957 } 958 959 /* enable cpu_get_ticks() */ 960 void cpu_enable_ticks(void) 961 { 962 if (!cpu_ticks_enabled) { 963 cpu_ticks_offset -= cpu_get_real_ticks(); 964 cpu_clock_offset -= get_clock(); 965 cpu_ticks_enabled = 1; 966 } 967 } 968 969 /* disable cpu_get_ticks() : the clock is stopped. You must not call 970 cpu_get_ticks() after that. */ 971 void cpu_disable_ticks(void) 972 { 973 if (cpu_ticks_enabled) { 974 cpu_ticks_offset = cpu_get_ticks(); 975 cpu_clock_offset = cpu_get_clock(); 976 cpu_ticks_enabled = 0; 977 } 978 } 979 980 /***********************************************************/ 981 /* timers */ 982 983 #define QEMU_TIMER_REALTIME 0 984 #define QEMU_TIMER_VIRTUAL 1 985 986 struct QEMUClock { 987 int type; 988 /* XXX: add frequency */ 989 }; 990 991 struct QEMUTimer { 992 QEMUClock *clock; 993 int64_t expire_time; 994 QEMUTimerCB *cb; 995 void *opaque; 996 struct QEMUTimer *next; 997 }; 998 999 struct qemu_alarm_timer { 1000 char const *name; 1001 unsigned int flags; 1002 1003 int (*start)(struct qemu_alarm_timer *t); 1004 void (*stop)(struct qemu_alarm_timer *t); 1005 void (*rearm)(struct qemu_alarm_timer *t); 1006 void *priv; 1007 }; 1008 1009 #define ALARM_FLAG_DYNTICKS 0x1 1010 #define ALARM_FLAG_EXPIRED 0x2 1011 1012 static inline int alarm_has_dynticks(struct qemu_alarm_timer *t) 1013 { 1014 return t && (t->flags & ALARM_FLAG_DYNTICKS); 1015 } 1016 1017 static void qemu_rearm_alarm_timer(struct qemu_alarm_timer *t) 1018 { 1019 if (!alarm_has_dynticks(t)) 1020 return; 1021 1022 t->rearm(t); 1023 } 1024 1025 /* TODO: MIN_TIMER_REARM_US should be optimized */ 1026 #define MIN_TIMER_REARM_US 250 1027 1028 static struct qemu_alarm_timer *alarm_timer; 1029 1030 #ifdef _WIN32 1031 1032 struct qemu_alarm_win32 { 1033 MMRESULT timerId; 1034 unsigned int period; 1035 } alarm_win32_data = {0, -1}; 1036 1037 static int win32_start_timer(struct qemu_alarm_timer *t); 1038 static void win32_stop_timer(struct qemu_alarm_timer *t); 1039 static void win32_rearm_timer(struct qemu_alarm_timer *t); 1040 1041 #else 1042 1043 static int unix_start_timer(struct qemu_alarm_timer *t); 1044 static void unix_stop_timer(struct qemu_alarm_timer *t); 1045 1046 #ifdef __linux__ 1047 1048 static int dynticks_start_timer(struct qemu_alarm_timer *t); 1049 static void dynticks_stop_timer(struct qemu_alarm_timer *t); 1050 static void dynticks_rearm_timer(struct qemu_alarm_timer *t); 1051 1052 static int hpet_start_timer(struct qemu_alarm_timer *t); 1053 static void hpet_stop_timer(struct qemu_alarm_timer *t); 1054 1055 static int rtc_start_timer(struct qemu_alarm_timer *t); 1056 static void rtc_stop_timer(struct qemu_alarm_timer *t); 1057 1058 #endif /* __linux__ */ 1059 1060 #endif /* _WIN32 */ 1061 1062 /* Correlation between real and virtual time is always going to be 1063 fairly approximate, so ignore small variation. 1064 When the guest is idle real and virtual time will be aligned in 1065 the IO wait loop. */ 1066 #define ICOUNT_WOBBLE (QEMU_TIMER_BASE / 10) 1067 1068 static void icount_adjust(void) 1069 { 1070 int64_t cur_time; 1071 int64_t cur_icount; 1072 int64_t delta; 1073 static int64_t last_delta; 1074 /* If the VM is not running, then do nothing. */ 1075 if (!vm_running) 1076 return; 1077 1078 cur_time = cpu_get_clock(); 1079 cur_icount = qemu_get_clock(vm_clock); 1080 delta = cur_icount - cur_time; 1081 /* FIXME: This is a very crude algorithm, somewhat prone to oscillation. */ 1082 if (delta > 0 1083 && last_delta + ICOUNT_WOBBLE < delta * 2 1084 && icount_time_shift > 0) { 1085 /* The guest is getting too far ahead. Slow time down. */ 1086 icount_time_shift--; 1087 } 1088 if (delta < 0 1089 && last_delta - ICOUNT_WOBBLE > delta * 2 1090 && icount_time_shift < MAX_ICOUNT_SHIFT) { 1091 /* The guest is getting too far behind. Speed time up. */ 1092 icount_time_shift++; 1093 } 1094 last_delta = delta; 1095 qemu_icount_bias = cur_icount - (qemu_icount << icount_time_shift); 1096 } 1097 1098 static void icount_adjust_rt(void * opaque) 1099 { 1100 qemu_mod_timer(icount_rt_timer, 1101 qemu_get_clock(rt_clock) + 1000); 1102 icount_adjust(); 1103 } 1104 1105 static void icount_adjust_vm(void * opaque) 1106 { 1107 qemu_mod_timer(icount_vm_timer, 1108 qemu_get_clock(vm_clock) + QEMU_TIMER_BASE / 10); 1109 icount_adjust(); 1110 } 1111 1112 static void init_icount_adjust(void) 1113 { 1114 /* Have both realtime and virtual time triggers for speed adjustment. 1115 The realtime trigger catches emulated time passing too slowly, 1116 the virtual time trigger catches emulated time passing too fast. 1117 Realtime triggers occur even when idle, so use them less frequently 1118 than VM triggers. */ 1119 icount_rt_timer = qemu_new_timer(rt_clock, icount_adjust_rt, NULL); 1120 qemu_mod_timer(icount_rt_timer, 1121 qemu_get_clock(rt_clock) + 1000); 1122 icount_vm_timer = qemu_new_timer(vm_clock, icount_adjust_vm, NULL); 1123 qemu_mod_timer(icount_vm_timer, 1124 qemu_get_clock(vm_clock) + QEMU_TIMER_BASE / 10); 1125 } 1126 1127 static struct qemu_alarm_timer alarm_timers[] = { 1128 #ifndef _WIN32 1129 #ifdef __linux__ 1130 {"dynticks", ALARM_FLAG_DYNTICKS, dynticks_start_timer, 1131 dynticks_stop_timer, dynticks_rearm_timer, NULL}, 1132 /* HPET - if available - is preferred */ 1133 {"hpet", 0, hpet_start_timer, hpet_stop_timer, NULL, NULL}, 1134 /* ...otherwise try RTC */ 1135 {"rtc", 0, rtc_start_timer, rtc_stop_timer, NULL, NULL}, 1136 #endif 1137 {"unix", 0, unix_start_timer, unix_stop_timer, NULL, NULL}, 1138 #else 1139 {"dynticks", ALARM_FLAG_DYNTICKS, win32_start_timer, 1140 win32_stop_timer, win32_rearm_timer, &alarm_win32_data}, 1141 {"win32", 0, win32_start_timer, 1142 win32_stop_timer, NULL, &alarm_win32_data}, 1143 #endif 1144 {NULL, 0, NULL, NULL, NULL, NULL} 1145 }; 1146 1147 static void show_available_alarms(void) 1148 { 1149 int i; 1150 1151 printf("Available alarm timers, in order of precedence:\n"); 1152 for (i = 0; alarm_timers[i].name; i++) 1153 printf("%s\n", alarm_timers[i].name); 1154 } 1155 1156 static void configure_alarms(char const *opt) 1157 { 1158 int i; 1159 int cur = 0; 1160 int count = ARRAY_SIZE(alarm_timers) - 1; 1161 char *arg; 1162 char *name; 1163 struct qemu_alarm_timer tmp; 1164 1165 if (!strcmp(opt, "?")) { 1166 show_available_alarms(); 1167 exit(0); 1168 } 1169 1170 arg = strdup(opt); 1171 1172 /* Reorder the array */ 1173 name = strtok(arg, ","); 1174 while (name) { 1175 for (i = 0; i < count && alarm_timers[i].name; i++) { 1176 if (!strcmp(alarm_timers[i].name, name)) 1177 break; 1178 } 1179 1180 if (i == count) { 1181 fprintf(stderr, "Unknown clock %s\n", name); 1182 goto next; 1183 } 1184 1185 if (i < cur) 1186 /* Ignore */ 1187 goto next; 1188 1189 /* Swap */ 1190 tmp = alarm_timers[i]; 1191 alarm_timers[i] = alarm_timers[cur]; 1192 alarm_timers[cur] = tmp; 1193 1194 cur++; 1195 next: 1196 name = strtok(NULL, ","); 1197 } 1198 1199 free(arg); 1200 1201 if (cur) { 1202 /* Disable remaining timers */ 1203 for (i = cur; i < count; i++) 1204 alarm_timers[i].name = NULL; 1205 } else { 1206 show_available_alarms(); 1207 exit(1); 1208 } 1209 } 1210 1211 QEMUClock *rt_clock; 1212 QEMUClock *vm_clock; 1213 1214 static QEMUTimer *active_timers[2]; 1215 1216 static QEMUClock *qemu_new_clock(int type) 1217 { 1218 QEMUClock *clock; 1219 clock = qemu_mallocz(sizeof(QEMUClock)); 1220 clock->type = type; 1221 return clock; 1222 } 1223 1224 QEMUTimer *qemu_new_timer(QEMUClock *clock, QEMUTimerCB *cb, void *opaque) 1225 { 1226 QEMUTimer *ts; 1227 1228 ts = qemu_mallocz(sizeof(QEMUTimer)); 1229 ts->clock = clock; 1230 ts->cb = cb; 1231 ts->opaque = opaque; 1232 return ts; 1233 } 1234 1235 void qemu_free_timer(QEMUTimer *ts) 1236 { 1237 qemu_free(ts); 1238 } 1239 1240 /* stop a timer, but do not dealloc it */ 1241 void qemu_del_timer(QEMUTimer *ts) 1242 { 1243 QEMUTimer **pt, *t; 1244 1245 /* NOTE: this code must be signal safe because 1246 qemu_timer_expired() can be called from a signal. */ 1247 pt = &active_timers[ts->clock->type]; 1248 for(;;) { 1249 t = *pt; 1250 if (!t) 1251 break; 1252 if (t == ts) { 1253 *pt = t->next; 1254 break; 1255 } 1256 pt = &t->next; 1257 } 1258 } 1259 1260 /* modify the current timer so that it will be fired when current_time 1261 >= expire_time. The corresponding callback will be called. */ 1262 void qemu_mod_timer(QEMUTimer *ts, int64_t expire_time) 1263 { 1264 QEMUTimer **pt, *t; 1265 1266 qemu_del_timer(ts); 1267 1268 /* add the timer in the sorted list */ 1269 /* NOTE: this code must be signal safe because 1270 qemu_timer_expired() can be called from a signal. */ 1271 pt = &active_timers[ts->clock->type]; 1272 for(;;) { 1273 t = *pt; 1274 if (!t) 1275 break; 1276 if (t->expire_time > expire_time) 1277 break; 1278 pt = &t->next; 1279 } 1280 ts->expire_time = expire_time; 1281 ts->next = *pt; 1282 *pt = ts; 1283 1284 /* Rearm if necessary */ 1285 if (pt == &active_timers[ts->clock->type]) { 1286 if ((alarm_timer->flags & ALARM_FLAG_EXPIRED) == 0) { 1287 qemu_rearm_alarm_timer(alarm_timer); 1288 } 1289 /* Interrupt execution to force deadline recalculation. */ 1290 if (use_icount) 1291 qemu_notify_event(); 1292 } 1293 } 1294 1295 int qemu_timer_pending(QEMUTimer *ts) 1296 { 1297 QEMUTimer *t; 1298 for(t = active_timers[ts->clock->type]; t != NULL; t = t->next) { 1299 if (t == ts) 1300 return 1; 1301 } 1302 return 0; 1303 } 1304 1305 static inline int qemu_timer_expired(QEMUTimer *timer_head, int64_t current_time) 1306 { 1307 if (!timer_head) 1308 return 0; 1309 return (timer_head->expire_time <= current_time); 1310 } 1311 1312 static void qemu_run_timers(QEMUTimer **ptimer_head, int64_t current_time) 1313 { 1314 QEMUTimer *ts; 1315 1316 for(;;) { 1317 ts = *ptimer_head; 1318 if (!ts || ts->expire_time > current_time) 1319 break; 1320 /* remove timer from the list before calling the callback */ 1321 *ptimer_head = ts->next; 1322 ts->next = NULL; 1323 1324 /* run the callback (the timer list can be modified) */ 1325 ts->cb(ts->opaque); 1326 } 1327 } 1328 1329 int64_t qemu_get_clock(QEMUClock *clock) 1330 { 1331 switch(clock->type) { 1332 case QEMU_TIMER_REALTIME: 1333 return get_clock() / 1000000; 1334 default: 1335 case QEMU_TIMER_VIRTUAL: 1336 if (use_icount) { 1337 return cpu_get_icount(); 1338 } else { 1339 return cpu_get_clock(); 1340 } 1341 } 1342 } 1343 1344 static void init_timers(void) 1345 { 1346 init_get_clock(); 1347 ticks_per_sec = QEMU_TIMER_BASE; 1348 rt_clock = qemu_new_clock(QEMU_TIMER_REALTIME); 1349 vm_clock = qemu_new_clock(QEMU_TIMER_VIRTUAL); 1350 } 1351 1352 /* save a timer */ 1353 void qemu_put_timer(QEMUFile *f, QEMUTimer *ts) 1354 { 1355 uint64_t expire_time; 1356 1357 if (qemu_timer_pending(ts)) { 1358 expire_time = ts->expire_time; 1359 } else { 1360 expire_time = -1; 1361 } 1362 qemu_put_be64(f, expire_time); 1363 } 1364 1365 void qemu_get_timer(QEMUFile *f, QEMUTimer *ts) 1366 { 1367 uint64_t expire_time; 1368 1369 expire_time = qemu_get_be64(f); 1370 if (expire_time != -1) { 1371 qemu_mod_timer(ts, expire_time); 1372 } else { 1373 qemu_del_timer(ts); 1374 } 1375 } 1376 1377 static void timer_save(QEMUFile *f, void *opaque) 1378 { 1379 if (cpu_ticks_enabled) { 1380 hw_error("cannot save state if virtual timers are running"); 1381 } 1382 qemu_put_be64(f, cpu_ticks_offset); 1383 qemu_put_be64(f, ticks_per_sec); 1384 qemu_put_be64(f, cpu_clock_offset); 1385 } 1386 1387 static int timer_load(QEMUFile *f, void *opaque, int version_id) 1388 { 1389 if (version_id != 1 && version_id != 2) 1390 return -EINVAL; 1391 if (cpu_ticks_enabled) { 1392 return -EINVAL; 1393 } 1394 cpu_ticks_offset=qemu_get_be64(f); 1395 ticks_per_sec=qemu_get_be64(f); 1396 if (version_id == 2) { 1397 cpu_clock_offset=qemu_get_be64(f); 1398 } 1399 return 0; 1400 } 1401 1402 static void qemu_event_increment(void); 1403 1404 #ifdef _WIN32 1405 static void CALLBACK host_alarm_handler(UINT uTimerID, UINT uMsg, 1406 DWORD_PTR dwUser, DWORD_PTR dw1, 1407 DWORD_PTR dw2) 1408 #else 1409 static void host_alarm_handler(int host_signum) 1410 #endif 1411 { 1412 #if 0 1413 #define DISP_FREQ 1000 1414 { 1415 static int64_t delta_min = INT64_MAX; 1416 static int64_t delta_max, delta_cum, last_clock, delta, ti; 1417 static int count; 1418 ti = qemu_get_clock(vm_clock); 1419 if (last_clock != 0) { 1420 delta = ti - last_clock; 1421 if (delta < delta_min) 1422 delta_min = delta; 1423 if (delta > delta_max) 1424 delta_max = delta; 1425 delta_cum += delta; 1426 if (++count == DISP_FREQ) { 1427 printf("timer: min=%" PRId64 " us max=%" PRId64 " us avg=%" PRId64 " us avg_freq=%0.3f Hz\n", 1428 muldiv64(delta_min, 1000000, ticks_per_sec), 1429 muldiv64(delta_max, 1000000, ticks_per_sec), 1430 muldiv64(delta_cum, 1000000 / DISP_FREQ, ticks_per_sec), 1431 (double)ticks_per_sec / ((double)delta_cum / DISP_FREQ)); 1432 count = 0; 1433 delta_min = INT64_MAX; 1434 delta_max = 0; 1435 delta_cum = 0; 1436 } 1437 } 1438 last_clock = ti; 1439 } 1440 #endif 1441 if (alarm_has_dynticks(alarm_timer) || 1442 (!use_icount && 1443 qemu_timer_expired(active_timers[QEMU_TIMER_VIRTUAL], 1444 qemu_get_clock(vm_clock))) || 1445 qemu_timer_expired(active_timers[QEMU_TIMER_REALTIME], 1446 qemu_get_clock(rt_clock))) { 1447 qemu_event_increment(); 1448 if (alarm_timer) alarm_timer->flags |= ALARM_FLAG_EXPIRED; 1449 1450 #ifndef CONFIG_IOTHREAD 1451 if (next_cpu) { 1452 /* stop the currently executing cpu because a timer occured */ 1453 cpu_exit(next_cpu); 1454 #ifdef CONFIG_KQEMU 1455 if (next_cpu->kqemu_enabled) { 1456 kqemu_cpu_interrupt(next_cpu); 1457 } 1458 #endif 1459 } 1460 #endif 1461 timer_alarm_pending = 1; 1462 qemu_notify_event(); 1463 } 1464 } 1465 1466 static int64_t qemu_next_deadline(void) 1467 { 1468 int64_t delta; 1469 1470 if (active_timers[QEMU_TIMER_VIRTUAL]) { 1471 delta = active_timers[QEMU_TIMER_VIRTUAL]->expire_time - 1472 qemu_get_clock(vm_clock); 1473 } else { 1474 /* To avoid problems with overflow limit this to 2^32. */ 1475 delta = INT32_MAX; 1476 } 1477 1478 if (delta < 0) 1479 delta = 0; 1480 1481 return delta; 1482 } 1483 1484 #if defined(__linux__) || defined(_WIN32) 1485 static uint64_t qemu_next_deadline_dyntick(void) 1486 { 1487 int64_t delta; 1488 int64_t rtdelta; 1489 1490 if (use_icount) 1491 delta = INT32_MAX; 1492 else 1493 delta = (qemu_next_deadline() + 999) / 1000; 1494 1495 if (active_timers[QEMU_TIMER_REALTIME]) { 1496 rtdelta = (active_timers[QEMU_TIMER_REALTIME]->expire_time - 1497 qemu_get_clock(rt_clock))*1000; 1498 if (rtdelta < delta) 1499 delta = rtdelta; 1500 } 1501 1502 if (delta < MIN_TIMER_REARM_US) 1503 delta = MIN_TIMER_REARM_US; 1504 1505 return delta; 1506 } 1507 #endif 1508 1509 #ifndef _WIN32 1510 1511 /* Sets a specific flag */ 1512 static int fcntl_setfl(int fd, int flag) 1513 { 1514 int flags; 1515 1516 flags = fcntl(fd, F_GETFL); 1517 if (flags == -1) 1518 return -errno; 1519 1520 if (fcntl(fd, F_SETFL, flags | flag) == -1) 1521 return -errno; 1522 1523 return 0; 1524 } 1525 1526 #if defined(__linux__) 1527 1528 #define RTC_FREQ 1024 1529 1530 static void enable_sigio_timer(int fd) 1531 { 1532 struct sigaction act; 1533 1534 /* timer signal */ 1535 sigfillset(&act.sa_mask); 1536 act.sa_flags = 0; 1537 act.sa_handler = host_alarm_handler; 1538 1539 sigaction(SIGIO, &act, NULL); 1540 fcntl_setfl(fd, O_ASYNC); 1541 fcntl(fd, F_SETOWN, getpid()); 1542 } 1543 1544 static int hpet_start_timer(struct qemu_alarm_timer *t) 1545 { 1546 struct hpet_info info; 1547 int r, fd; 1548 1549 fd = open("/dev/hpet", O_RDONLY); 1550 if (fd < 0) 1551 return -1; 1552 1553 /* Set frequency */ 1554 r = ioctl(fd, HPET_IRQFREQ, RTC_FREQ); 1555 if (r < 0) { 1556 fprintf(stderr, "Could not configure '/dev/hpet' to have a 1024Hz timer. This is not a fatal\n" 1557 "error, but for better emulation accuracy type:\n" 1558 "'echo 1024 > /proc/sys/dev/hpet/max-user-freq' as root.\n"); 1559 goto fail; 1560 } 1561 1562 /* Check capabilities */ 1563 r = ioctl(fd, HPET_INFO, &info); 1564 if (r < 0) 1565 goto fail; 1566 1567 /* Enable periodic mode */ 1568 r = ioctl(fd, HPET_EPI, 0); 1569 if (info.hi_flags && (r < 0)) 1570 goto fail; 1571 1572 /* Enable interrupt */ 1573 r = ioctl(fd, HPET_IE_ON, 0); 1574 if (r < 0) 1575 goto fail; 1576 1577 enable_sigio_timer(fd); 1578 t->priv = (void *)(long)fd; 1579 1580 return 0; 1581 fail: 1582 close(fd); 1583 return -1; 1584 } 1585 1586 static void hpet_stop_timer(struct qemu_alarm_timer *t) 1587 { 1588 int fd = (long)t->priv; 1589 1590 close(fd); 1591 } 1592 1593 static int rtc_start_timer(struct qemu_alarm_timer *t) 1594 { 1595 int rtc_fd; 1596 unsigned long current_rtc_freq = 0; 1597 1598 TFR(rtc_fd = open("/dev/rtc", O_RDONLY)); 1599 if (rtc_fd < 0) 1600 return -1; 1601 ioctl(rtc_fd, RTC_IRQP_READ, ¤t_rtc_freq); 1602 if (current_rtc_freq != RTC_FREQ && 1603 ioctl(rtc_fd, RTC_IRQP_SET, RTC_FREQ) < 0) { 1604 fprintf(stderr, "Could not configure '/dev/rtc' to have a 1024 Hz timer. This is not a fatal\n" 1605 "error, but for better emulation accuracy either use a 2.6 host Linux kernel or\n" 1606 "type 'echo 1024 > /proc/sys/dev/rtc/max-user-freq' as root.\n"); 1607 goto fail; 1608 } 1609 if (ioctl(rtc_fd, RTC_PIE_ON, 0) < 0) { 1610 fail: 1611 close(rtc_fd); 1612 return -1; 1613 } 1614 1615 enable_sigio_timer(rtc_fd); 1616 1617 t->priv = (void *)(long)rtc_fd; 1618 1619 return 0; 1620 } 1621 1622 static void rtc_stop_timer(struct qemu_alarm_timer *t) 1623 { 1624 int rtc_fd = (long)t->priv; 1625 1626 close(rtc_fd); 1627 } 1628 1629 static int dynticks_start_timer(struct qemu_alarm_timer *t) 1630 { 1631 struct sigevent ev; 1632 timer_t host_timer; 1633 struct sigaction act; 1634 1635 sigfillset(&act.sa_mask); 1636 act.sa_flags = 0; 1637 act.sa_handler = host_alarm_handler; 1638 1639 sigaction(SIGALRM, &act, NULL); 1640 1641 /* 1642 * Initialize ev struct to 0 to avoid valgrind complaining 1643 * about uninitialized data in timer_create call 1644 */ 1645 memset(&ev, 0, sizeof(ev)); 1646 ev.sigev_value.sival_int = 0; 1647 ev.sigev_notify = SIGEV_SIGNAL; 1648 ev.sigev_signo = SIGALRM; 1649 1650 if (timer_create(CLOCK_REALTIME, &ev, &host_timer)) { 1651 perror("timer_create"); 1652 1653 /* disable dynticks */ 1654 fprintf(stderr, "Dynamic Ticks disabled\n"); 1655 1656 return -1; 1657 } 1658 1659 t->priv = (void *)(long)host_timer; 1660 1661 return 0; 1662 } 1663 1664 static void dynticks_stop_timer(struct qemu_alarm_timer *t) 1665 { 1666 timer_t host_timer = (timer_t)(long)t->priv; 1667 1668 timer_delete(host_timer); 1669 } 1670 1671 static void dynticks_rearm_timer(struct qemu_alarm_timer *t) 1672 { 1673 timer_t host_timer = (timer_t)(long)t->priv; 1674 struct itimerspec timeout; 1675 int64_t nearest_delta_us = INT64_MAX; 1676 int64_t current_us; 1677 1678 if (!active_timers[QEMU_TIMER_REALTIME] && 1679 !active_timers[QEMU_TIMER_VIRTUAL]) 1680 return; 1681 1682 nearest_delta_us = qemu_next_deadline_dyntick(); 1683 1684 /* check whether a timer is already running */ 1685 if (timer_gettime(host_timer, &timeout)) { 1686 perror("gettime"); 1687 fprintf(stderr, "Internal timer error: aborting\n"); 1688 exit(1); 1689 } 1690 current_us = timeout.it_value.tv_sec * 1000000 + timeout.it_value.tv_nsec/1000; 1691 if (current_us && current_us <= nearest_delta_us) 1692 return; 1693 1694 timeout.it_interval.tv_sec = 0; 1695 timeout.it_interval.tv_nsec = 0; /* 0 for one-shot timer */ 1696 timeout.it_value.tv_sec = nearest_delta_us / 1000000; 1697 timeout.it_value.tv_nsec = (nearest_delta_us % 1000000) * 1000; 1698 if (timer_settime(host_timer, 0 /* RELATIVE */, &timeout, NULL)) { 1699 perror("settime"); 1700 fprintf(stderr, "Internal timer error: aborting\n"); 1701 exit(1); 1702 } 1703 } 1704 1705 #endif /* defined(__linux__) */ 1706 1707 static int unix_start_timer(struct qemu_alarm_timer *t) 1708 { 1709 struct sigaction act; 1710 struct itimerval itv; 1711 int err; 1712 1713 /* timer signal */ 1714 sigfillset(&act.sa_mask); 1715 act.sa_flags = 0; 1716 act.sa_handler = host_alarm_handler; 1717 1718 sigaction(SIGALRM, &act, NULL); 1719 1720 itv.it_interval.tv_sec = 0; 1721 /* for i386 kernel 2.6 to get 1 ms */ 1722 itv.it_interval.tv_usec = 999; 1723 itv.it_value.tv_sec = 0; 1724 itv.it_value.tv_usec = 10 * 1000; 1725 1726 err = setitimer(ITIMER_REAL, &itv, NULL); 1727 if (err) 1728 return -1; 1729 1730 return 0; 1731 } 1732 1733 static void unix_stop_timer(struct qemu_alarm_timer *t) 1734 { 1735 struct itimerval itv; 1736 1737 memset(&itv, 0, sizeof(itv)); 1738 setitimer(ITIMER_REAL, &itv, NULL); 1739 } 1740 1741 #endif /* !defined(_WIN32) */ 1742 1743 1744 #ifdef _WIN32 1745 1746 static int win32_start_timer(struct qemu_alarm_timer *t) 1747 { 1748 TIMECAPS tc; 1749 struct qemu_alarm_win32 *data = t->priv; 1750 UINT flags; 1751 1752 memset(&tc, 0, sizeof(tc)); 1753 timeGetDevCaps(&tc, sizeof(tc)); 1754 1755 if (data->period < tc.wPeriodMin) 1756 data->period = tc.wPeriodMin; 1757 1758 timeBeginPeriod(data->period); 1759 1760 flags = TIME_CALLBACK_FUNCTION; 1761 if (alarm_has_dynticks(t)) 1762 flags |= TIME_ONESHOT; 1763 else 1764 flags |= TIME_PERIODIC; 1765 1766 data->timerId = timeSetEvent(1, // interval (ms) 1767 data->period, // resolution 1768 host_alarm_handler, // function 1769 (DWORD)t, // parameter 1770 flags); 1771 1772 if (!data->timerId) { 1773 perror("Failed to initialize win32 alarm timer"); 1774 timeEndPeriod(data->period); 1775 return -1; 1776 } 1777 1778 return 0; 1779 } 1780 1781 static void win32_stop_timer(struct qemu_alarm_timer *t) 1782 { 1783 struct qemu_alarm_win32 *data = t->priv; 1784 1785 timeKillEvent(data->timerId); 1786 timeEndPeriod(data->period); 1787 } 1788 1789 static void win32_rearm_timer(struct qemu_alarm_timer *t) 1790 { 1791 struct qemu_alarm_win32 *data = t->priv; 1792 uint64_t nearest_delta_us; 1793 1794 if (!active_timers[QEMU_TIMER_REALTIME] && 1795 !active_timers[QEMU_TIMER_VIRTUAL]) 1796 return; 1797 1798 nearest_delta_us = qemu_next_deadline_dyntick(); 1799 nearest_delta_us /= 1000; 1800 1801 timeKillEvent(data->timerId); 1802 1803 data->timerId = timeSetEvent(1, 1804 data->period, 1805 host_alarm_handler, 1806 (DWORD)t, 1807 TIME_ONESHOT | TIME_PERIODIC); 1808 1809 if (!data->timerId) { 1810 perror("Failed to re-arm win32 alarm timer"); 1811 1812 timeEndPeriod(data->period); 1813 exit(1); 1814 } 1815 } 1816 1817 #endif /* _WIN32 */ 1818 1819 static int init_timer_alarm(void) 1820 { 1821 struct qemu_alarm_timer *t = NULL; 1822 int i, err = -1; 1823 1824 for (i = 0; alarm_timers[i].name; i++) { 1825 t = &alarm_timers[i]; 1826 1827 err = t->start(t); 1828 if (!err) 1829 break; 1830 } 1831 1832 if (err) { 1833 err = -ENOENT; 1834 goto fail; 1835 } 1836 1837 alarm_timer = t; 1838 1839 return 0; 1840 1841 fail: 1842 return err; 1843 } 1844 1845 static void quit_timers(void) 1846 { 1847 alarm_timer->stop(alarm_timer); 1848 alarm_timer = NULL; 1849 } 1850 1851 /***********************************************************/ 1852 /* host time/date access */ 1853 void qemu_get_timedate(struct tm *tm, int offset) 1854 { 1855 time_t ti; 1856 struct tm *ret; 1857 1858 time(&ti); 1859 ti += offset; 1860 if (rtc_date_offset == -1) { 1861 if (rtc_utc) 1862 ret = gmtime(&ti); 1863 else 1864 ret = localtime(&ti); 1865 } else { 1866 ti -= rtc_date_offset; 1867 ret = gmtime(&ti); 1868 } 1869 1870 memcpy(tm, ret, sizeof(struct tm)); 1871 } 1872 1873 int qemu_timedate_diff(struct tm *tm) 1874 { 1875 time_t seconds; 1876 1877 if (rtc_date_offset == -1) 1878 if (rtc_utc) 1879 seconds = mktimegm(tm); 1880 else 1881 seconds = mktime(tm); 1882 else 1883 seconds = mktimegm(tm) + rtc_date_offset; 1884 1885 return seconds - time(NULL); 1886 } 1887 1888 1889 #ifdef CONFIG_TRACE 1890 static int tbflush_requested; 1891 static int exit_requested; 1892 1893 void start_tracing() 1894 { 1895 if (trace_filename == NULL) 1896 return; 1897 if (!tracing) { 1898 fprintf(stderr,"-- start tracing --\n"); 1899 start_time = Now(); 1900 } 1901 tracing = 1; 1902 tbflush_requested = 1; 1903 qemu_notify_event(); 1904 } 1905 1906 void stop_tracing() 1907 { 1908 if (trace_filename == NULL) 1909 return; 1910 if (tracing) { 1911 end_time = Now(); 1912 elapsed_usecs += end_time - start_time; 1913 fprintf(stderr,"-- stop tracing --\n"); 1914 } 1915 tracing = 0; 1916 tbflush_requested = 1; 1917 qemu_notify_event(); 1918 } 1919 1920 #ifndef _WIN32 1921 /* This is the handler for the SIGUSR1 and SIGUSR2 signals. 1922 * SIGUSR1 turns tracing on. SIGUSR2 turns tracing off. 1923 */ 1924 void sigusr_handler(int sig) 1925 { 1926 if (sig == SIGUSR1) 1927 start_tracing(); 1928 else 1929 stop_tracing(); 1930 } 1931 #endif 1932 1933 /* This is the handler to catch control-C so that we can exit cleanly. 1934 * This is needed when tracing to flush the buffers to disk. 1935 */ 1936 void sigint_handler(int sig) 1937 { 1938 exit_requested = 1; 1939 qemu_notify_event(); 1940 } 1941 #endif /* CONFIG_TRACE */ 1942 1943 1944 int get_param_value(char *buf, int buf_size, 1945 const char *tag, const char *str) 1946 { 1947 const char *p; 1948 char option[128]; 1949 1950 p = str; 1951 for(;;) { 1952 p = get_opt_name(option, sizeof(option), p, '='); 1953 if (*p != '=') 1954 break; 1955 p++; 1956 if (!strcmp(tag, option)) { 1957 (void)get_opt_value(buf, buf_size, p); 1958 return strlen(buf); 1959 } else { 1960 p = get_opt_value(NULL, 0, p); 1961 } 1962 if (*p != ',') 1963 break; 1964 p++; 1965 } 1966 return 0; 1967 } 1968 1969 int check_params(char *buf, int buf_size, 1970 const char * const *params, const char *str) 1971 { 1972 const char *p; 1973 int i; 1974 1975 p = str; 1976 while (*p != '\0') { 1977 p = get_opt_name(buf, buf_size, p, '='); 1978 if (*p != '=') { 1979 return -1; 1980 } 1981 p++; 1982 for (i = 0; params[i] != NULL; i++) { 1983 if (!strcmp(params[i], buf)) { 1984 break; 1985 } 1986 } 1987 if (params[i] == NULL) { 1988 return -1; 1989 } 1990 p = get_opt_value(NULL, 0, p); 1991 if (*p != ',') { 1992 break; 1993 } 1994 p++; 1995 } 1996 return 0; 1997 } 1998 1999 /***********************************************************/ 2000 /* Bluetooth support */ 2001 static int nb_hcis; 2002 static int cur_hci; 2003 static struct HCIInfo *hci_table[MAX_NICS]; 2004 2005 static struct bt_vlan_s { 2006 struct bt_scatternet_s net; 2007 int id; 2008 struct bt_vlan_s *next; 2009 } *first_bt_vlan; 2010 2011 /* find or alloc a new bluetooth "VLAN" */ 2012 static struct bt_scatternet_s *qemu_find_bt_vlan(int id) 2013 { 2014 struct bt_vlan_s **pvlan, *vlan; 2015 for (vlan = first_bt_vlan; vlan != NULL; vlan = vlan->next) { 2016 if (vlan->id == id) 2017 return &vlan->net; 2018 } 2019 vlan = qemu_mallocz(sizeof(struct bt_vlan_s)); 2020 vlan->id = id; 2021 pvlan = &first_bt_vlan; 2022 while (*pvlan != NULL) 2023 pvlan = &(*pvlan)->next; 2024 *pvlan = vlan; 2025 return &vlan->net; 2026 } 2027 2028 static void null_hci_send(struct HCIInfo *hci, const uint8_t *data, int len) 2029 { 2030 } 2031 2032 static int null_hci_addr_set(struct HCIInfo *hci, const uint8_t *bd_addr) 2033 { 2034 return -ENOTSUP; 2035 } 2036 2037 static struct HCIInfo null_hci = { 2038 .cmd_send = null_hci_send, 2039 .sco_send = null_hci_send, 2040 .acl_send = null_hci_send, 2041 .bdaddr_set = null_hci_addr_set, 2042 }; 2043 2044 struct HCIInfo *qemu_next_hci(void) 2045 { 2046 if (cur_hci == nb_hcis) 2047 return &null_hci; 2048 2049 return hci_table[cur_hci++]; 2050 } 2051 2052 static struct HCIInfo *hci_init(const char *str) 2053 { 2054 char *endp; 2055 struct bt_scatternet_s *vlan = 0; 2056 2057 if (!strcmp(str, "null")) 2058 /* null */ 2059 return &null_hci; 2060 else if (!strncmp(str, "host", 4) && (str[4] == '\0' || str[4] == ':')) 2061 /* host[:hciN] */ 2062 return bt_host_hci(str[4] ? str + 5 : "hci0"); 2063 else if (!strncmp(str, "hci", 3)) { 2064 /* hci[,vlan=n] */ 2065 if (str[3]) { 2066 if (!strncmp(str + 3, ",vlan=", 6)) { 2067 vlan = qemu_find_bt_vlan(strtol(str + 9, &endp, 0)); 2068 if (*endp) 2069 vlan = 0; 2070 } 2071 } else 2072 vlan = qemu_find_bt_vlan(0); 2073 if (vlan) 2074 return bt_new_hci(vlan); 2075 } 2076 2077 fprintf(stderr, "qemu: Unknown bluetooth HCI `%s'.\n", str); 2078 2079 return 0; 2080 } 2081 2082 static int bt_hci_parse(const char *str) 2083 { 2084 struct HCIInfo *hci; 2085 bdaddr_t bdaddr; 2086 2087 if (nb_hcis >= MAX_NICS) { 2088 fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS); 2089 return -1; 2090 } 2091 2092 hci = hci_init(str); 2093 if (!hci) 2094 return -1; 2095 2096 bdaddr.b[0] = 0x52; 2097 bdaddr.b[1] = 0x54; 2098 bdaddr.b[2] = 0x00; 2099 bdaddr.b[3] = 0x12; 2100 bdaddr.b[4] = 0x34; 2101 bdaddr.b[5] = 0x56 + nb_hcis; 2102 hci->bdaddr_set(hci, bdaddr.b); 2103 2104 hci_table[nb_hcis++] = hci; 2105 2106 return 0; 2107 } 2108 2109 static void bt_vhci_add(int vlan_id) 2110 { 2111 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id); 2112 2113 if (!vlan->slave) 2114 fprintf(stderr, "qemu: warning: adding a VHCI to " 2115 "an empty scatternet %i\n", vlan_id); 2116 2117 bt_vhci_init(bt_new_hci(vlan)); 2118 } 2119 2120 static struct bt_device_s *bt_device_add(const char *opt) 2121 { 2122 struct bt_scatternet_s *vlan; 2123 int vlan_id = 0; 2124 char *endp = strstr(opt, ",vlan="); 2125 int len = (endp ? endp - opt : strlen(opt)) + 1; 2126 char devname[10]; 2127 2128 pstrcpy(devname, MIN(sizeof(devname), len), opt); 2129 2130 if (endp) { 2131 vlan_id = strtol(endp + 6, &endp, 0); 2132 if (*endp) { 2133 fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n"); 2134 return 0; 2135 } 2136 } 2137 2138 vlan = qemu_find_bt_vlan(vlan_id); 2139 2140 if (!vlan->slave) 2141 fprintf(stderr, "qemu: warning: adding a slave device to " 2142 "an empty scatternet %i\n", vlan_id); 2143 2144 if (!strcmp(devname, "keyboard")) 2145 return bt_keyboard_init(vlan); 2146 2147 fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname); 2148 return 0; 2149 } 2150 2151 static int bt_parse(const char *opt) 2152 { 2153 const char *endp, *p; 2154 int vlan; 2155 2156 if (strstart(opt, "hci", &endp)) { 2157 if (!*endp || *endp == ',') { 2158 if (*endp) 2159 if (!strstart(endp, ",vlan=", 0)) 2160 opt = endp + 1; 2161 2162 return bt_hci_parse(opt); 2163 } 2164 } else if (strstart(opt, "vhci", &endp)) { 2165 if (!*endp || *endp == ',') { 2166 if (*endp) { 2167 if (strstart(endp, ",vlan=", &p)) { 2168 vlan = strtol(p, (char **) &endp, 0); 2169 if (*endp) { 2170 fprintf(stderr, "qemu: bad scatternet '%s'\n", p); 2171 return 1; 2172 } 2173 } else { 2174 fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1); 2175 return 1; 2176 } 2177 } else 2178 vlan = 0; 2179 2180 bt_vhci_add(vlan); 2181 return 0; 2182 } 2183 } else if (strstart(opt, "device:", &endp)) 2184 return !bt_device_add(endp); 2185 2186 fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt); 2187 return 1; 2188 } 2189 2190 /***********************************************************/ 2191 /* QEMU Block devices */ 2192 2193 #define HD_ALIAS "index=%d,media=disk" 2194 #define CDROM_ALIAS "index=2,media=cdrom" 2195 #define FD_ALIAS "index=%d,if=floppy" 2196 #define PFLASH_ALIAS "if=pflash" 2197 #define MTD_ALIAS "if=mtd" 2198 #define SD_ALIAS "index=0,if=sd" 2199 2200 static int drive_opt_get_free_idx(void) 2201 { 2202 int index; 2203 2204 for (index = 0; index < MAX_DRIVES; index++) 2205 if (!drives_opt[index].used) { 2206 drives_opt[index].used = 1; 2207 return index; 2208 } 2209 2210 return -1; 2211 } 2212 2213 static int drive_get_free_idx(void) 2214 { 2215 int index; 2216 2217 for (index = 0; index < MAX_DRIVES; index++) 2218 if (!drives_table[index].used) { 2219 drives_table[index].used = 1; 2220 return index; 2221 } 2222 2223 return -1; 2224 } 2225 2226 int drive_add(const char *file, const char *fmt, ...) 2227 { 2228 va_list ap; 2229 int index = drive_opt_get_free_idx(); 2230 2231 if (nb_drives_opt >= MAX_DRIVES || index == -1) { 2232 fprintf(stderr, "qemu: too many drives\n"); 2233 return -1; 2234 } 2235 2236 drives_opt[index].file = file; 2237 va_start(ap, fmt); 2238 vsnprintf(drives_opt[index].opt, 2239 sizeof(drives_opt[0].opt), fmt, ap); 2240 va_end(ap); 2241 2242 nb_drives_opt++; 2243 return index; 2244 } 2245 2246 void drive_remove(int index) 2247 { 2248 drives_opt[index].used = 0; 2249 nb_drives_opt--; 2250 } 2251 2252 int drive_get_index(BlockInterfaceType type, int bus, int unit) 2253 { 2254 int index; 2255 2256 /* seek interface, bus and unit */ 2257 2258 for (index = 0; index < MAX_DRIVES; index++) 2259 if (drives_table[index].type == type && 2260 drives_table[index].bus == bus && 2261 drives_table[index].unit == unit && 2262 drives_table[index].used) 2263 return index; 2264 2265 return -1; 2266 } 2267 2268 int drive_get_max_bus(BlockInterfaceType type) 2269 { 2270 int max_bus; 2271 int index; 2272 2273 max_bus = -1; 2274 for (index = 0; index < nb_drives; index++) { 2275 if(drives_table[index].type == type && 2276 drives_table[index].bus > max_bus) 2277 max_bus = drives_table[index].bus; 2278 } 2279 return max_bus; 2280 } 2281 2282 const char *drive_get_serial(BlockDriverState *bdrv) 2283 { 2284 int index; 2285 2286 for (index = 0; index < nb_drives; index++) 2287 if (drives_table[index].bdrv == bdrv) 2288 return drives_table[index].serial; 2289 2290 return "\0"; 2291 } 2292 2293 BlockInterfaceErrorAction drive_get_onerror(BlockDriverState *bdrv) 2294 { 2295 int index; 2296 2297 for (index = 0; index < nb_drives; index++) 2298 if (drives_table[index].bdrv == bdrv) 2299 return drives_table[index].onerror; 2300 2301 return BLOCK_ERR_STOP_ENOSPC; 2302 } 2303 2304 static void bdrv_format_print(void *opaque, const char *name) 2305 { 2306 fprintf(stderr, " %s", name); 2307 } 2308 2309 void drive_uninit(BlockDriverState *bdrv) 2310 { 2311 int i; 2312 2313 for (i = 0; i < MAX_DRIVES; i++) 2314 if (drives_table[i].bdrv == bdrv) { 2315 drives_table[i].bdrv = NULL; 2316 drives_table[i].used = 0; 2317 drive_remove(drives_table[i].drive_opt_idx); 2318 nb_drives--; 2319 break; 2320 } 2321 } 2322 2323 int drive_init(struct drive_opt *arg, int snapshot, void *opaque) 2324 { 2325 char buf[128]; 2326 char file[1024]; 2327 char devname[128]; 2328 char serial[21]; 2329 const char *mediastr = ""; 2330 BlockInterfaceType type; 2331 enum { MEDIA_DISK, MEDIA_CDROM } media; 2332 int bus_id, unit_id; 2333 int cyls, heads, secs, translation; 2334 BlockDriverState *bdrv; 2335 BlockDriver *drv = NULL; 2336 QEMUMachine *machine = opaque; 2337 int max_devs; 2338 int index; 2339 int cache; 2340 int bdrv_flags, onerror; 2341 int drives_table_idx; 2342 char *str = arg->opt; 2343 static const char * const params[] = { "bus", "unit", "if", "index", 2344 "cyls", "heads", "secs", "trans", 2345 "media", "snapshot", "file", 2346 "cache", "format", "serial", "werror", 2347 NULL }; 2348 2349 if (check_params(buf, sizeof(buf), params, str) < 0) { 2350 fprintf(stderr, "qemu: unknown parameter '%s' in '%s'\n", 2351 buf, str); 2352 return -1; 2353 } 2354 2355 file[0] = 0; 2356 cyls = heads = secs = 0; 2357 bus_id = 0; 2358 unit_id = -1; 2359 translation = BIOS_ATA_TRANSLATION_AUTO; 2360 index = -1; 2361 cache = 3; 2362 2363 if (machine->use_scsi) { 2364 type = IF_SCSI; 2365 max_devs = MAX_SCSI_DEVS; 2366 pstrcpy(devname, sizeof(devname), "scsi"); 2367 } else { 2368 type = IF_IDE; 2369 max_devs = MAX_IDE_DEVS; 2370 pstrcpy(devname, sizeof(devname), "ide"); 2371 } 2372 media = MEDIA_DISK; 2373 2374 /* extract parameters */ 2375 2376 if (get_param_value(buf, sizeof(buf), "bus", str)) { 2377 bus_id = strtol(buf, NULL, 0); 2378 if (bus_id < 0) { 2379 fprintf(stderr, "qemu: '%s' invalid bus id\n", str); 2380 return -1; 2381 } 2382 } 2383 2384 if (get_param_value(buf, sizeof(buf), "unit", str)) { 2385 unit_id = strtol(buf, NULL, 0); 2386 if (unit_id < 0) { 2387 fprintf(stderr, "qemu: '%s' invalid unit id\n", str); 2388 return -1; 2389 } 2390 } 2391 2392 if (get_param_value(buf, sizeof(buf), "if", str)) { 2393 pstrcpy(devname, sizeof(devname), buf); 2394 if (!strcmp(buf, "ide")) { 2395 type = IF_IDE; 2396 max_devs = MAX_IDE_DEVS; 2397 } else if (!strcmp(buf, "scsi")) { 2398 type = IF_SCSI; 2399 max_devs = MAX_SCSI_DEVS; 2400 } else if (!strcmp(buf, "floppy")) { 2401 type = IF_FLOPPY; 2402 max_devs = 0; 2403 } else if (!strcmp(buf, "pflash")) { 2404 type = IF_PFLASH; 2405 max_devs = 0; 2406 } else if (!strcmp(buf, "mtd")) { 2407 type = IF_MTD; 2408 max_devs = 0; 2409 } else if (!strcmp(buf, "sd")) { 2410 type = IF_SD; 2411 max_devs = 0; 2412 } else if (!strcmp(buf, "virtio")) { 2413 type = IF_VIRTIO; 2414 max_devs = 0; 2415 } else if (!strcmp(buf, "xen")) { 2416 type = IF_XEN; 2417 max_devs = 0; 2418 } else { 2419 fprintf(stderr, "qemu: '%s' unsupported bus type '%s'\n", str, buf); 2420 return -1; 2421 } 2422 } 2423 2424 if (get_param_value(buf, sizeof(buf), "index", str)) { 2425 index = strtol(buf, NULL, 0); 2426 if (index < 0) { 2427 fprintf(stderr, "qemu: '%s' invalid index\n", str); 2428 return -1; 2429 } 2430 } 2431 2432 if (get_param_value(buf, sizeof(buf), "cyls", str)) { 2433 cyls = strtol(buf, NULL, 0); 2434 } 2435 2436 if (get_param_value(buf, sizeof(buf), "heads", str)) { 2437 heads = strtol(buf, NULL, 0); 2438 } 2439 2440 if (get_param_value(buf, sizeof(buf), "secs", str)) { 2441 secs = strtol(buf, NULL, 0); 2442 } 2443 2444 if (cyls || heads || secs) { 2445 if (cyls < 1 || cyls > 16383) { 2446 fprintf(stderr, "qemu: '%s' invalid physical cyls number\n", str); 2447 return -1; 2448 } 2449 if (heads < 1 || heads > 16) { 2450 fprintf(stderr, "qemu: '%s' invalid physical heads number\n", str); 2451 return -1; 2452 } 2453 if (secs < 1 || secs > 63) { 2454 fprintf(stderr, "qemu: '%s' invalid physical secs number\n", str); 2455 return -1; 2456 } 2457 } 2458 2459 if (get_param_value(buf, sizeof(buf), "trans", str)) { 2460 if (!cyls) { 2461 fprintf(stderr, 2462 "qemu: '%s' trans must be used with cyls,heads and secs\n", 2463 str); 2464 return -1; 2465 } 2466 if (!strcmp(buf, "none")) 2467 translation = BIOS_ATA_TRANSLATION_NONE; 2468 else if (!strcmp(buf, "lba")) 2469 translation = BIOS_ATA_TRANSLATION_LBA; 2470 else if (!strcmp(buf, "auto")) 2471 translation = BIOS_ATA_TRANSLATION_AUTO; 2472 else { 2473 fprintf(stderr, "qemu: '%s' invalid translation type\n", str); 2474 return -1; 2475 } 2476 } 2477 2478 if (get_param_value(buf, sizeof(buf), "media", str)) { 2479 if (!strcmp(buf, "disk")) { 2480 media = MEDIA_DISK; 2481 } else if (!strcmp(buf, "cdrom")) { 2482 if (cyls || secs || heads) { 2483 fprintf(stderr, 2484 "qemu: '%s' invalid physical CHS format\n", str); 2485 return -1; 2486 } 2487 media = MEDIA_CDROM; 2488 } else { 2489 fprintf(stderr, "qemu: '%s' invalid media\n", str); 2490 return -1; 2491 } 2492 } 2493 2494 if (get_param_value(buf, sizeof(buf), "snapshot", str)) { 2495 if (!strcmp(buf, "on")) 2496 snapshot = 1; 2497 else if (!strcmp(buf, "off")) 2498 snapshot = 0; 2499 else { 2500 fprintf(stderr, "qemu: '%s' invalid snapshot option\n", str); 2501 return -1; 2502 } 2503 } 2504 2505 if (get_param_value(buf, sizeof(buf), "cache", str)) { 2506 if (!strcmp(buf, "off") || !strcmp(buf, "none")) 2507 cache = 0; 2508 else if (!strcmp(buf, "writethrough")) 2509 cache = 1; 2510 else if (!strcmp(buf, "writeback")) 2511 cache = 2; 2512 else { 2513 fprintf(stderr, "qemu: invalid cache option\n"); 2514 return -1; 2515 } 2516 } 2517 2518 if (get_param_value(buf, sizeof(buf), "format", str)) { 2519 if (strcmp(buf, "?") == 0) { 2520 fprintf(stderr, "qemu: Supported formats:"); 2521 bdrv_iterate_format(bdrv_format_print, NULL); 2522 fprintf(stderr, "\n"); 2523 return -1; 2524 } 2525 drv = bdrv_find_format(buf); 2526 if (!drv) { 2527 fprintf(stderr, "qemu: '%s' invalid format\n", buf); 2528 return -1; 2529 } 2530 } 2531 2532 if (arg->file == NULL) 2533 get_param_value(file, sizeof(file), "file", str); 2534 else 2535 pstrcpy(file, sizeof(file), arg->file); 2536 2537 if (!get_param_value(serial, sizeof(serial), "serial", str)) 2538 memset(serial, 0, sizeof(serial)); 2539 2540 onerror = BLOCK_ERR_STOP_ENOSPC; 2541 if (get_param_value(buf, sizeof(serial), "werror", str)) { 2542 if (type != IF_IDE && type != IF_SCSI && type != IF_VIRTIO) { 2543 fprintf(stderr, "werror is no supported by this format\n"); 2544 return -1; 2545 } 2546 if (!strcmp(buf, "ignore")) 2547 onerror = BLOCK_ERR_IGNORE; 2548 else if (!strcmp(buf, "enospc")) 2549 onerror = BLOCK_ERR_STOP_ENOSPC; 2550 else if (!strcmp(buf, "stop")) 2551 onerror = BLOCK_ERR_STOP_ANY; 2552 else if (!strcmp(buf, "report")) 2553 onerror = BLOCK_ERR_REPORT; 2554 else { 2555 fprintf(stderr, "qemu: '%s' invalid write error action\n", buf); 2556 return -1; 2557 } 2558 } 2559 2560 /* compute bus and unit according index */ 2561 2562 if (index != -1) { 2563 if (bus_id != 0 || unit_id != -1) { 2564 fprintf(stderr, 2565 "qemu: '%s' index cannot be used with bus and unit\n", str); 2566 return -1; 2567 } 2568 if (max_devs == 0) 2569 { 2570 unit_id = index; 2571 bus_id = 0; 2572 } else { 2573 unit_id = index % max_devs; 2574 bus_id = index / max_devs; 2575 } 2576 } 2577 2578 /* if user doesn't specify a unit_id, 2579 * try to find the first free 2580 */ 2581 2582 if (unit_id == -1) { 2583 unit_id = 0; 2584 while (drive_get_index(type, bus_id, unit_id) != -1) { 2585 unit_id++; 2586 if (max_devs && unit_id >= max_devs) { 2587 unit_id -= max_devs; 2588 bus_id++; 2589 } 2590 } 2591 } 2592 2593 /* check unit id */ 2594 2595 if (max_devs && unit_id >= max_devs) { 2596 fprintf(stderr, "qemu: '%s' unit %d too big (max is %d)\n", 2597 str, unit_id, max_devs - 1); 2598 return -1; 2599 } 2600 2601 /* 2602 * ignore multiple definitions 2603 */ 2604 2605 if (drive_get_index(type, bus_id, unit_id) != -1) 2606 return -2; 2607 2608 /* init */ 2609 2610 if (type == IF_IDE || type == IF_SCSI) 2611 mediastr = (media == MEDIA_CDROM) ? "-cd" : "-hd"; 2612 if (max_devs) 2613 snprintf(buf, sizeof(buf), "%s%i%s%i", 2614 devname, bus_id, mediastr, unit_id); 2615 else 2616 snprintf(buf, sizeof(buf), "%s%s%i", 2617 devname, mediastr, unit_id); 2618 bdrv = bdrv_new(buf); 2619 drives_table_idx = drive_get_free_idx(); 2620 drives_table[drives_table_idx].bdrv = bdrv; 2621 drives_table[drives_table_idx].type = type; 2622 drives_table[drives_table_idx].bus = bus_id; 2623 drives_table[drives_table_idx].unit = unit_id; 2624 drives_table[drives_table_idx].onerror = onerror; 2625 drives_table[drives_table_idx].drive_opt_idx = arg - drives_opt; 2626 strncpy(drives_table[drives_table_idx].serial, serial, sizeof(serial)); 2627 nb_drives++; 2628 2629 switch(type) { 2630 case IF_IDE: 2631 case IF_SCSI: 2632 case IF_XEN: 2633 switch(media) { 2634 case MEDIA_DISK: 2635 if (cyls != 0) { 2636 bdrv_set_geometry_hint(bdrv, cyls, heads, secs); 2637 bdrv_set_translation_hint(bdrv, translation); 2638 } 2639 break; 2640 case MEDIA_CDROM: 2641 bdrv_set_type_hint(bdrv, BDRV_TYPE_CDROM); 2642 break; 2643 } 2644 break; 2645 case IF_SD: 2646 /* FIXME: This isn't really a floppy, but it's a reasonable 2647 approximation. */ 2648 case IF_FLOPPY: 2649 bdrv_set_type_hint(bdrv, BDRV_TYPE_FLOPPY); 2650 break; 2651 case IF_PFLASH: 2652 case IF_MTD: 2653 case IF_VIRTIO: 2654 break; 2655 case IF_COUNT: 2656 abort(); 2657 } 2658 if (!file[0]) 2659 return -2; 2660 bdrv_flags = 0; 2661 if (snapshot) { 2662 bdrv_flags |= BDRV_O_SNAPSHOT; 2663 cache = 2; /* always use write-back with snapshot */ 2664 } 2665 if (cache == 0) /* no caching */ 2666 bdrv_flags |= BDRV_O_NOCACHE; 2667 else if (cache == 2) /* write-back */ 2668 bdrv_flags |= BDRV_O_CACHE_WB; 2669 else if (cache == 3) /* not specified */ 2670 bdrv_flags |= BDRV_O_CACHE_DEF; 2671 if (bdrv_open2(bdrv, file, bdrv_flags, drv) < 0) { 2672 fprintf(stderr, "qemu: could not open disk image %s\n", 2673 file); 2674 return -1; 2675 } 2676 if (bdrv_key_required(bdrv)) 2677 autostart = 0; 2678 return drives_table_idx; 2679 } 2680 2681 static void numa_add(const char *optarg) 2682 { 2683 char option[128]; 2684 char *endptr; 2685 unsigned long long value, endvalue; 2686 int nodenr; 2687 2688 optarg = get_opt_name(option, 128, optarg, ',') + 1; 2689 if (!strcmp(option, "node")) { 2690 if (get_param_value(option, 128, "nodeid", optarg) == 0) { 2691 nodenr = nb_numa_nodes; 2692 } else { 2693 nodenr = strtoull(option, NULL, 10); 2694 } 2695 2696 if (get_param_value(option, 128, "mem", optarg) == 0) { 2697 node_mem[nodenr] = 0; 2698 } else { 2699 value = strtoull(option, &endptr, 0); 2700 switch (*endptr) { 2701 case 0: case 'M': case 'm': 2702 value <<= 20; 2703 break; 2704 case 'G': case 'g': 2705 value <<= 30; 2706 break; 2707 } 2708 node_mem[nodenr] = value; 2709 } 2710 if (get_param_value(option, 128, "cpus", optarg) == 0) { 2711 node_cpumask[nodenr] = 0; 2712 } else { 2713 value = strtoull(option, &endptr, 10); 2714 if (value >= 64) { 2715 value = 63; 2716 fprintf(stderr, "only 64 CPUs in NUMA mode supported.\n"); 2717 } else { 2718 if (*endptr == '-') { 2719 endvalue = strtoull(endptr+1, &endptr, 10); 2720 if (endvalue >= 63) { 2721 endvalue = 62; 2722 fprintf(stderr, 2723 "only 63 CPUs in NUMA mode supported.\n"); 2724 } 2725 value = (1 << (endvalue + 1)) - (1 << value); 2726 } else { 2727 value = 1 << value; 2728 } 2729 } 2730 node_cpumask[nodenr] = value; 2731 } 2732 nb_numa_nodes++; 2733 } 2734 return; 2735 } 2736 2737 /***********************************************************/ 2738 /* USB devices */ 2739 2740 static USBPort *used_usb_ports; 2741 static USBPort *free_usb_ports; 2742 2743 /* ??? Maybe change this to register a hub to keep track of the topology. */ 2744 void qemu_register_usb_port(USBPort *port, void *opaque, int index, 2745 usb_attachfn attach) 2746 { 2747 port->opaque = opaque; 2748 port->index = index; 2749 port->attach = attach; 2750 port->next = free_usb_ports; 2751 free_usb_ports = port; 2752 } 2753 2754 int usb_device_add_dev(USBDevice *dev) 2755 { 2756 USBPort *port; 2757 2758 /* Find a USB port to add the device to. */ 2759 port = free_usb_ports; 2760 if (!port->next) { 2761 USBDevice *hub; 2762 2763 /* Create a new hub and chain it on. */ 2764 free_usb_ports = NULL; 2765 port->next = used_usb_ports; 2766 used_usb_ports = port; 2767 2768 hub = usb_hub_init(VM_USB_HUB_SIZE); 2769 usb_attach(port, hub); 2770 port = free_usb_ports; 2771 } 2772 2773 free_usb_ports = port->next; 2774 port->next = used_usb_ports; 2775 used_usb_ports = port; 2776 usb_attach(port, dev); 2777 return 0; 2778 } 2779 2780 static void usb_msd_password_cb(void *opaque, int err) 2781 { 2782 USBDevice *dev = opaque; 2783 2784 if (!err) 2785 usb_device_add_dev(dev); 2786 else 2787 dev->handle_destroy(dev); 2788 } 2789 2790 static int usb_device_add(const char *devname, int is_hotplug) 2791 { 2792 const char *p; 2793 USBDevice *dev; 2794 2795 if (!free_usb_ports) 2796 return -1; 2797 2798 if (strstart(devname, "host:", &p)) { 2799 dev = usb_host_device_open(p); 2800 } else if (!strcmp(devname, "mouse")) { 2801 dev = usb_mouse_init(); 2802 } else if (!strcmp(devname, "tablet")) { 2803 dev = usb_tablet_init(); 2804 } else if (!strcmp(devname, "keyboard")) { 2805 dev = usb_keyboard_init(); 2806 } else if (strstart(devname, "disk:", &p)) { 2807 #if 0 2808 BlockDriverState *bs; 2809 #endif 2810 dev = usb_msd_init(p); 2811 if (!dev) 2812 return -1; 2813 #if 0 2814 bs = usb_msd_get_bdrv(dev); 2815 if (bdrv_key_required(bs)) { 2816 autostart = 0; 2817 if (is_hotplug) { 2818 monitor_read_bdrv_key_start(cur_mon, bs, usb_msd_password_cb, 2819 dev); 2820 return 0; 2821 } 2822 } 2823 } else if (!strcmp(devname, "wacom-tablet")) { 2824 dev = usb_wacom_init(); 2825 } else if (strstart(devname, "serial:", &p)) { 2826 dev = usb_serial_init(p); 2827 #ifdef CONFIG_BRLAPI 2828 } else if (!strcmp(devname, "braille")) { 2829 dev = usb_baum_init(); 2830 #endif 2831 } else if (strstart(devname, "net:", &p)) { 2832 int nic = nb_nics; 2833 2834 if (net_client_init("nic", p) < 0) 2835 return -1; 2836 nd_table[nic].model = "usb"; 2837 dev = usb_net_init(&nd_table[nic]); 2838 } else if (!strcmp(devname, "bt") || strstart(devname, "bt:", &p)) { 2839 dev = usb_bt_init(devname[2] ? hci_init(p) : 2840 bt_new_hci(qemu_find_bt_vlan(0))); 2841 #endif 2842 } else { 2843 return -1; 2844 } 2845 if (!dev) 2846 return -1; 2847 2848 return usb_device_add_dev(dev); 2849 } 2850 2851 int usb_device_del_addr(int bus_num, int addr) 2852 { 2853 USBPort *port; 2854 USBPort **lastp; 2855 USBDevice *dev; 2856 2857 if (!used_usb_ports) 2858 return -1; 2859 2860 if (bus_num != 0) 2861 return -1; 2862 2863 lastp = &used_usb_ports; 2864 port = used_usb_ports; 2865 while (port && port->dev->addr != addr) { 2866 lastp = &port->next; 2867 port = port->next; 2868 } 2869 2870 if (!port) 2871 return -1; 2872 2873 dev = port->dev; 2874 *lastp = port->next; 2875 usb_attach(port, NULL); 2876 dev->handle_destroy(dev); 2877 port->next = free_usb_ports; 2878 free_usb_ports = port; 2879 return 0; 2880 } 2881 2882 static int usb_device_del(const char *devname) 2883 { 2884 int bus_num, addr; 2885 const char *p; 2886 2887 if (strstart(devname, "host:", &p)) 2888 return usb_host_device_close(p); 2889 2890 if (!used_usb_ports) 2891 return -1; 2892 2893 p = strchr(devname, '.'); 2894 if (!p) 2895 return -1; 2896 bus_num = strtoul(devname, NULL, 0); 2897 addr = strtoul(p + 1, NULL, 0); 2898 2899 return usb_device_del_addr(bus_num, addr); 2900 } 2901 2902 void do_usb_add(Monitor *mon, const char *devname) 2903 { 2904 usb_device_add(devname, 1); 2905 } 2906 2907 void do_usb_del(Monitor *mon, const char *devname) 2908 { 2909 usb_device_del(devname); 2910 } 2911 2912 void usb_info(Monitor *mon) 2913 { 2914 USBDevice *dev; 2915 USBPort *port; 2916 const char *speed_str; 2917 2918 if (!usb_enabled) { 2919 monitor_printf(mon, "USB support not enabled\n"); 2920 return; 2921 } 2922 2923 for (port = used_usb_ports; port; port = port->next) { 2924 dev = port->dev; 2925 if (!dev) 2926 continue; 2927 switch(dev->speed) { 2928 case USB_SPEED_LOW: 2929 speed_str = "1.5"; 2930 break; 2931 case USB_SPEED_FULL: 2932 speed_str = "12"; 2933 break; 2934 case USB_SPEED_HIGH: 2935 speed_str = "480"; 2936 break; 2937 default: 2938 speed_str = "?"; 2939 break; 2940 } 2941 monitor_printf(mon, " Device %d.%d, Speed %s Mb/s, Product %s\n", 2942 0, dev->addr, speed_str, dev->devname); 2943 } 2944 } 2945 2946 /***********************************************************/ 2947 /* PCMCIA/Cardbus */ 2948 2949 static struct pcmcia_socket_entry_s { 2950 PCMCIASocket *socket; 2951 struct pcmcia_socket_entry_s *next; 2952 } *pcmcia_sockets = 0; 2953 2954 void pcmcia_socket_register(PCMCIASocket *socket) 2955 { 2956 struct pcmcia_socket_entry_s *entry; 2957 2958 entry = qemu_malloc(sizeof(struct pcmcia_socket_entry_s)); 2959 entry->socket = socket; 2960 entry->next = pcmcia_sockets; 2961 pcmcia_sockets = entry; 2962 } 2963 2964 void pcmcia_socket_unregister(PCMCIASocket *socket) 2965 { 2966 struct pcmcia_socket_entry_s *entry, **ptr; 2967 2968 ptr = &pcmcia_sockets; 2969 for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr) 2970 if (entry->socket == socket) { 2971 *ptr = entry->next; 2972 qemu_free(entry); 2973 } 2974 } 2975 2976 void pcmcia_info(Monitor *mon) 2977 { 2978 struct pcmcia_socket_entry_s *iter; 2979 2980 if (!pcmcia_sockets) 2981 monitor_printf(mon, "No PCMCIA sockets\n"); 2982 2983 for (iter = pcmcia_sockets; iter; iter = iter->next) 2984 monitor_printf(mon, "%s: %s\n", iter->socket->slot_string, 2985 iter->socket->attached ? iter->socket->card_string : 2986 "Empty"); 2987 } 2988 2989 /***********************************************************/ 2990 /* register display */ 2991 2992 struct DisplayAllocator default_allocator = { 2993 defaultallocator_create_displaysurface, 2994 defaultallocator_resize_displaysurface, 2995 defaultallocator_free_displaysurface 2996 }; 2997 2998 void register_displaystate(DisplayState *ds) 2999 { 3000 DisplayState **s; 3001 s = &display_state; 3002 while (*s != NULL) 3003 s = &(*s)->next; 3004 ds->next = NULL; 3005 *s = ds; 3006 } 3007 3008 DisplayState *get_displaystate(void) 3009 { 3010 return display_state; 3011 } 3012 3013 DisplayAllocator *register_displayallocator(DisplayState *ds, DisplayAllocator *da) 3014 { 3015 if(ds->allocator == &default_allocator) ds->allocator = da; 3016 return ds->allocator; 3017 } 3018 3019 /* dumb display */ 3020 3021 static void dumb_display_init(void) 3022 { 3023 DisplayState *ds = qemu_mallocz(sizeof(DisplayState)); 3024 ds->allocator = &default_allocator; 3025 ds->surface = qemu_create_displaysurface(ds, 640, 480); 3026 register_displaystate(ds); 3027 } 3028 3029 /***********************************************************/ 3030 /* I/O handling */ 3031 3032 typedef struct IOHandlerRecord { 3033 int fd; 3034 IOCanRWHandler *fd_read_poll; 3035 IOHandler *fd_read; 3036 IOHandler *fd_write; 3037 int deleted; 3038 void *opaque; 3039 /* temporary data */ 3040 struct pollfd *ufd; 3041 struct IOHandlerRecord *next; 3042 } IOHandlerRecord; 3043 3044 static IOHandlerRecord *first_io_handler; 3045 3046 /* XXX: fd_read_poll should be suppressed, but an API change is 3047 necessary in the character devices to suppress fd_can_read(). */ 3048 int qemu_set_fd_handler2(int fd, 3049 IOCanRWHandler *fd_read_poll, 3050 IOHandler *fd_read, 3051 IOHandler *fd_write, 3052 void *opaque) 3053 { 3054 IOHandlerRecord **pioh, *ioh; 3055 3056 if (!fd_read && !fd_write) { 3057 pioh = &first_io_handler; 3058 for(;;) { 3059 ioh = *pioh; 3060 if (ioh == NULL) 3061 break; 3062 if (ioh->fd == fd) { 3063 ioh->deleted = 1; 3064 break; 3065 } 3066 pioh = &ioh->next; 3067 } 3068 } else { 3069 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) { 3070 if (ioh->fd == fd) 3071 goto found; 3072 } 3073 ioh = qemu_mallocz(sizeof(IOHandlerRecord)); 3074 ioh->next = first_io_handler; 3075 first_io_handler = ioh; 3076 found: 3077 ioh->fd = fd; 3078 ioh->fd_read_poll = fd_read_poll; 3079 ioh->fd_read = fd_read; 3080 ioh->fd_write = fd_write; 3081 ioh->opaque = opaque; 3082 ioh->deleted = 0; 3083 } 3084 return 0; 3085 } 3086 3087 int qemu_set_fd_handler(int fd, 3088 IOHandler *fd_read, 3089 IOHandler *fd_write, 3090 void *opaque) 3091 { 3092 return qemu_set_fd_handler2(fd, NULL, fd_read, fd_write, opaque); 3093 } 3094 3095 #ifdef _WIN32 3096 /***********************************************************/ 3097 /* Polling handling */ 3098 3099 typedef struct PollingEntry { 3100 PollingFunc *func; 3101 void *opaque; 3102 struct PollingEntry *next; 3103 } PollingEntry; 3104 3105 static PollingEntry *first_polling_entry; 3106 3107 int qemu_add_polling_cb(PollingFunc *func, void *opaque) 3108 { 3109 PollingEntry **ppe, *pe; 3110 pe = qemu_mallocz(sizeof(PollingEntry)); 3111 pe->func = func; 3112 pe->opaque = opaque; 3113 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next); 3114 *ppe = pe; 3115 return 0; 3116 } 3117 3118 void qemu_del_polling_cb(PollingFunc *func, void *opaque) 3119 { 3120 PollingEntry **ppe, *pe; 3121 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next) { 3122 pe = *ppe; 3123 if (pe->func == func && pe->opaque == opaque) { 3124 *ppe = pe->next; 3125 qemu_free(pe); 3126 break; 3127 } 3128 } 3129 } 3130 3131 /***********************************************************/ 3132 /* Wait objects support */ 3133 typedef struct WaitObjects { 3134 int num; 3135 HANDLE events[MAXIMUM_WAIT_OBJECTS + 1]; 3136 WaitObjectFunc *func[MAXIMUM_WAIT_OBJECTS + 1]; 3137 void *opaque[MAXIMUM_WAIT_OBJECTS + 1]; 3138 } WaitObjects; 3139 3140 static WaitObjects wait_objects = {0}; 3141 3142 int qemu_add_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque) 3143 { 3144 WaitObjects *w = &wait_objects; 3145 3146 if (w->num >= MAXIMUM_WAIT_OBJECTS) 3147 return -1; 3148 w->events[w->num] = handle; 3149 w->func[w->num] = func; 3150 w->opaque[w->num] = opaque; 3151 w->num++; 3152 return 0; 3153 } 3154 3155 void qemu_del_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque) 3156 { 3157 int i, found; 3158 WaitObjects *w = &wait_objects; 3159 3160 found = 0; 3161 for (i = 0; i < w->num; i++) { 3162 if (w->events[i] == handle) 3163 found = 1; 3164 if (found) { 3165 w->events[i] = w->events[i + 1]; 3166 w->func[i] = w->func[i + 1]; 3167 w->opaque[i] = w->opaque[i + 1]; 3168 } 3169 } 3170 if (found) 3171 w->num--; 3172 } 3173 #endif 3174 3175 /***********************************************************/ 3176 /* ram save/restore */ 3177 3178 static int ram_get_page(QEMUFile *f, uint8_t *buf, int len) 3179 { 3180 int v; 3181 3182 v = qemu_get_byte(f); 3183 switch(v) { 3184 case 0: 3185 if (qemu_get_buffer(f, buf, len) != len) 3186 return -EIO; 3187 break; 3188 case 1: 3189 v = qemu_get_byte(f); 3190 memset(buf, v, len); 3191 break; 3192 default: 3193 return -EINVAL; 3194 } 3195 3196 if (qemu_file_has_error(f)) 3197 return -EIO; 3198 3199 return 0; 3200 } 3201 3202 static int ram_load_v1(QEMUFile *f, void *opaque) 3203 { 3204 int ret; 3205 ram_addr_t i; 3206 3207 if (qemu_get_be32(f) != last_ram_offset) 3208 return -EINVAL; 3209 for(i = 0; i < last_ram_offset; i+= TARGET_PAGE_SIZE) { 3210 ret = ram_get_page(f, qemu_get_ram_ptr(i), TARGET_PAGE_SIZE); 3211 if (ret) 3212 return ret; 3213 } 3214 return 0; 3215 } 3216 3217 #define BDRV_HASH_BLOCK_SIZE 1024 3218 #define IOBUF_SIZE 4096 3219 #define RAM_CBLOCK_MAGIC 0xfabe 3220 3221 typedef struct RamDecompressState { 3222 z_stream zstream; 3223 QEMUFile *f; 3224 uint8_t buf[IOBUF_SIZE]; 3225 } RamDecompressState; 3226 3227 static int ram_decompress_open(RamDecompressState *s, QEMUFile *f) 3228 { 3229 int ret; 3230 memset(s, 0, sizeof(*s)); 3231 s->f = f; 3232 ret = inflateInit(&s->zstream); 3233 if (ret != Z_OK) 3234 return -1; 3235 return 0; 3236 } 3237 3238 static int ram_decompress_buf(RamDecompressState *s, uint8_t *buf, int len) 3239 { 3240 int ret, clen; 3241 3242 s->zstream.avail_out = len; 3243 s->zstream.next_out = buf; 3244 while (s->zstream.avail_out > 0) { 3245 if (s->zstream.avail_in == 0) { 3246 if (qemu_get_be16(s->f) != RAM_CBLOCK_MAGIC) 3247 return -1; 3248 clen = qemu_get_be16(s->f); 3249 if (clen > IOBUF_SIZE) 3250 return -1; 3251 qemu_get_buffer(s->f, s->buf, clen); 3252 s->zstream.avail_in = clen; 3253 s->zstream.next_in = s->buf; 3254 } 3255 ret = inflate(&s->zstream, Z_PARTIAL_FLUSH); 3256 if (ret != Z_OK && ret != Z_STREAM_END) { 3257 return -1; 3258 } 3259 } 3260 return 0; 3261 } 3262 3263 static void ram_decompress_close(RamDecompressState *s) 3264 { 3265 inflateEnd(&s->zstream); 3266 } 3267 3268 #define RAM_SAVE_FLAG_FULL 0x01 3269 #define RAM_SAVE_FLAG_COMPRESS 0x02 3270 #define RAM_SAVE_FLAG_MEM_SIZE 0x04 3271 #define RAM_SAVE_FLAG_PAGE 0x08 3272 #define RAM_SAVE_FLAG_EOS 0x10 3273 3274 static int is_dup_page(uint8_t *page, uint8_t ch) 3275 { 3276 uint32_t val = ch << 24 | ch << 16 | ch << 8 | ch; 3277 uint32_t *array = (uint32_t *)page; 3278 int i; 3279 3280 for (i = 0; i < (TARGET_PAGE_SIZE / 4); i++) { 3281 if (array[i] != val) 3282 return 0; 3283 } 3284 3285 return 1; 3286 } 3287 3288 static int ram_save_block(QEMUFile *f) 3289 { 3290 static ram_addr_t current_addr = 0; 3291 ram_addr_t saved_addr = current_addr; 3292 ram_addr_t addr = 0; 3293 int found = 0; 3294 3295 while (addr < last_ram_offset) { 3296 if (cpu_physical_memory_get_dirty(current_addr, MIGRATION_DIRTY_FLAG)) { 3297 uint8_t *p; 3298 3299 cpu_physical_memory_reset_dirty(current_addr, 3300 current_addr + TARGET_PAGE_SIZE, 3301 MIGRATION_DIRTY_FLAG); 3302 3303 p = qemu_get_ram_ptr(current_addr); 3304 3305 if (is_dup_page(p, *p)) { 3306 qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_COMPRESS); 3307 qemu_put_byte(f, *p); 3308 } else { 3309 qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_PAGE); 3310 qemu_put_buffer(f, p, TARGET_PAGE_SIZE); 3311 } 3312 3313 found = 1; 3314 break; 3315 } 3316 addr += TARGET_PAGE_SIZE; 3317 current_addr = (saved_addr + addr) % last_ram_offset; 3318 } 3319 3320 return found; 3321 } 3322 3323 static uint64_t bytes_transferred = 0; 3324 3325 static ram_addr_t ram_save_remaining(void) 3326 { 3327 ram_addr_t addr; 3328 ram_addr_t count = 0; 3329 3330 for (addr = 0; addr < last_ram_offset; addr += TARGET_PAGE_SIZE) { 3331 if (cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG)) 3332 count++; 3333 } 3334 3335 return count; 3336 } 3337 3338 uint64_t ram_bytes_remaining(void) 3339 { 3340 return ram_save_remaining() * TARGET_PAGE_SIZE; 3341 } 3342 3343 uint64_t ram_bytes_transferred(void) 3344 { 3345 return bytes_transferred; 3346 } 3347 3348 uint64_t ram_bytes_total(void) 3349 { 3350 return last_ram_offset; 3351 } 3352 3353 static int ram_save_live(QEMUFile *f, int stage, void *opaque) 3354 { 3355 ram_addr_t addr; 3356 uint64_t bytes_transferred_last; 3357 double bwidth = 0; 3358 uint64_t expected_time = 0; 3359 3360 cpu_physical_sync_dirty_bitmap(0, TARGET_PHYS_ADDR_MAX); 3361 3362 if (stage == 1) { 3363 /* Make sure all dirty bits are set */ 3364 for (addr = 0; addr < last_ram_offset; addr += TARGET_PAGE_SIZE) { 3365 if (!cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG)) 3366 cpu_physical_memory_set_dirty(addr); 3367 } 3368 3369 /* Enable dirty memory tracking */ 3370 cpu_physical_memory_set_dirty_tracking(1); 3371 3372 qemu_put_be64(f, last_ram_offset | RAM_SAVE_FLAG_MEM_SIZE); 3373 } 3374 3375 bytes_transferred_last = bytes_transferred; 3376 bwidth = get_clock(); 3377 3378 while (!qemu_file_rate_limit(f)) { 3379 int ret; 3380 3381 ret = ram_save_block(f); 3382 bytes_transferred += ret * TARGET_PAGE_SIZE; 3383 if (ret == 0) /* no more blocks */ 3384 break; 3385 } 3386 3387 bwidth = get_clock() - bwidth; 3388 bwidth = (bytes_transferred - bytes_transferred_last) / bwidth; 3389 3390 /* if we haven't transferred anything this round, force expected_time to a 3391 * a very high value, but without crashing */ 3392 if (bwidth == 0) 3393 bwidth = 0.000001; 3394 3395 /* try transferring iterative blocks of memory */ 3396 3397 if (stage == 3) { 3398 3399 /* flush all remaining blocks regardless of rate limiting */ 3400 while (ram_save_block(f) != 0) { 3401 bytes_transferred += TARGET_PAGE_SIZE; 3402 } 3403 cpu_physical_memory_set_dirty_tracking(0); 3404 } 3405 3406 qemu_put_be64(f, RAM_SAVE_FLAG_EOS); 3407 3408 expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth; 3409 3410 return (stage == 2) && (expected_time <= migrate_max_downtime()); 3411 } 3412 3413 static int ram_load_dead(QEMUFile *f, void *opaque) 3414 { 3415 RamDecompressState s1, *s = &s1; 3416 uint8_t buf[10]; 3417 ram_addr_t i; 3418 3419 if (ram_decompress_open(s, f) < 0) 3420 return -EINVAL; 3421 for(i = 0; i < last_ram_offset; i+= BDRV_HASH_BLOCK_SIZE) { 3422 if (ram_decompress_buf(s, buf, 1) < 0) { 3423 fprintf(stderr, "Error while reading ram block header\n"); 3424 goto error; 3425 } 3426 if (buf[0] == 0) { 3427 if (ram_decompress_buf(s, qemu_get_ram_ptr(i), 3428 BDRV_HASH_BLOCK_SIZE) < 0) { 3429 fprintf(stderr, "Error while reading ram block address=0x%08" PRIx64, (uint64_t)i); 3430 goto error; 3431 } 3432 } else { 3433 error: 3434 printf("Error block header\n"); 3435 return -EINVAL; 3436 } 3437 } 3438 ram_decompress_close(s); 3439 3440 return 0; 3441 } 3442 3443 static int ram_load(QEMUFile *f, void *opaque, int version_id) 3444 { 3445 ram_addr_t addr; 3446 int flags; 3447 3448 if (version_id == 1) 3449 return ram_load_v1(f, opaque); 3450 3451 if (version_id == 2) { 3452 if (qemu_get_be32(f) != last_ram_offset) 3453 return -EINVAL; 3454 return ram_load_dead(f, opaque); 3455 } 3456 3457 if (version_id != 3) 3458 return -EINVAL; 3459 3460 do { 3461 addr = qemu_get_be64(f); 3462 3463 flags = addr & ~TARGET_PAGE_MASK; 3464 addr &= TARGET_PAGE_MASK; 3465 3466 if (flags & RAM_SAVE_FLAG_MEM_SIZE) { 3467 if (addr != last_ram_offset) 3468 return -EINVAL; 3469 } 3470 3471 if (flags & RAM_SAVE_FLAG_FULL) { 3472 if (ram_load_dead(f, opaque) < 0) 3473 return -EINVAL; 3474 } 3475 3476 if (flags & RAM_SAVE_FLAG_COMPRESS) { 3477 uint8_t ch = qemu_get_byte(f); 3478 memset(qemu_get_ram_ptr(addr), ch, TARGET_PAGE_SIZE); 3479 } else if (flags & RAM_SAVE_FLAG_PAGE) 3480 qemu_get_buffer(f, qemu_get_ram_ptr(addr), TARGET_PAGE_SIZE); 3481 } while (!(flags & RAM_SAVE_FLAG_EOS)); 3482 3483 return 0; 3484 } 3485 3486 void qemu_service_io(void) 3487 { 3488 qemu_notify_event(); 3489 } 3490 3491 /***********************************************************/ 3492 /* bottom halves (can be seen as timers which expire ASAP) */ 3493 3494 struct QEMUBH { 3495 QEMUBHFunc *cb; 3496 void *opaque; 3497 int scheduled; 3498 int idle; 3499 int deleted; 3500 QEMUBH *next; 3501 }; 3502 3503 static QEMUBH *first_bh = NULL; 3504 3505 QEMUBH *qemu_bh_new(QEMUBHFunc *cb, void *opaque) 3506 { 3507 QEMUBH *bh; 3508 bh = qemu_mallocz(sizeof(QEMUBH)); 3509 bh->cb = cb; 3510 bh->opaque = opaque; 3511 bh->next = first_bh; 3512 first_bh = bh; 3513 return bh; 3514 } 3515 3516 int qemu_bh_poll(void) 3517 { 3518 QEMUBH *bh, **bhp; 3519 int ret; 3520 3521 ret = 0; 3522 for (bh = first_bh; bh; bh = bh->next) { 3523 if (!bh->deleted && bh->scheduled) { 3524 bh->scheduled = 0; 3525 if (!bh->idle) 3526 ret = 1; 3527 bh->idle = 0; 3528 bh->cb(bh->opaque); 3529 } 3530 } 3531 3532 /* remove deleted bhs */ 3533 bhp = &first_bh; 3534 while (*bhp) { 3535 bh = *bhp; 3536 if (bh->deleted) { 3537 *bhp = bh->next; 3538 qemu_free(bh); 3539 } else 3540 bhp = &bh->next; 3541 } 3542 3543 return ret; 3544 } 3545 3546 void qemu_bh_schedule_idle(QEMUBH *bh) 3547 { 3548 if (bh->scheduled) 3549 return; 3550 bh->scheduled = 1; 3551 bh->idle = 1; 3552 } 3553 3554 void qemu_bh_schedule(QEMUBH *bh) 3555 { 3556 if (bh->scheduled) 3557 return; 3558 bh->scheduled = 1; 3559 bh->idle = 0; 3560 /* stop the currently executing CPU to execute the BH ASAP */ 3561 qemu_notify_event(); 3562 } 3563 3564 void qemu_bh_cancel(QEMUBH *bh) 3565 { 3566 bh->scheduled = 0; 3567 } 3568 3569 void qemu_bh_delete(QEMUBH *bh) 3570 { 3571 bh->scheduled = 0; 3572 bh->deleted = 1; 3573 } 3574 3575 static void qemu_bh_update_timeout(int *timeout) 3576 { 3577 QEMUBH *bh; 3578 3579 for (bh = first_bh; bh; bh = bh->next) { 3580 if (!bh->deleted && bh->scheduled) { 3581 if (bh->idle) { 3582 /* idle bottom halves will be polled at least 3583 * every 10ms */ 3584 *timeout = MIN(10, *timeout); 3585 } else { 3586 /* non-idle bottom halves will be executed 3587 * immediately */ 3588 *timeout = 0; 3589 break; 3590 } 3591 } 3592 } 3593 } 3594 3595 /***********************************************************/ 3596 /* machine registration */ 3597 3598 static QEMUMachine *first_machine = NULL; 3599 QEMUMachine *current_machine = NULL; 3600 3601 int qemu_register_machine(QEMUMachine *m) 3602 { 3603 QEMUMachine **pm; 3604 pm = &first_machine; 3605 while (*pm != NULL) 3606 pm = &(*pm)->next; 3607 m->next = NULL; 3608 *pm = m; 3609 return 0; 3610 } 3611 3612 static QEMUMachine *find_machine(const char *name) 3613 { 3614 QEMUMachine *m; 3615 3616 for(m = first_machine; m != NULL; m = m->next) { 3617 if (!strcmp(m->name, name)) 3618 return m; 3619 } 3620 return NULL; 3621 } 3622 3623 static QEMUMachine *find_default_machine(void) 3624 { 3625 QEMUMachine *m; 3626 3627 for(m = first_machine; m != NULL; m = m->next) { 3628 if (m->is_default) { 3629 return m; 3630 } 3631 } 3632 return NULL; 3633 } 3634 3635 /***********************************************************/ 3636 /* main execution loop */ 3637 3638 static void gui_update(void *opaque) 3639 { 3640 uint64_t interval = GUI_REFRESH_INTERVAL; 3641 DisplayState *ds = opaque; 3642 DisplayChangeListener *dcl = ds->listeners; 3643 3644 dpy_refresh(ds); 3645 3646 while (dcl != NULL) { 3647 if (dcl->gui_timer_interval && 3648 dcl->gui_timer_interval < interval) 3649 interval = dcl->gui_timer_interval; 3650 dcl = dcl->next; 3651 } 3652 qemu_mod_timer(ds->gui_timer, interval + qemu_get_clock(rt_clock)); 3653 } 3654 3655 static void nographic_update(void *opaque) 3656 { 3657 uint64_t interval = GUI_REFRESH_INTERVAL; 3658 3659 qemu_mod_timer(nographic_timer, interval + qemu_get_clock(rt_clock)); 3660 } 3661 3662 struct vm_change_state_entry { 3663 VMChangeStateHandler *cb; 3664 void *opaque; 3665 LIST_ENTRY (vm_change_state_entry) entries; 3666 }; 3667 3668 static LIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head; 3669 3670 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb, 3671 void *opaque) 3672 { 3673 VMChangeStateEntry *e; 3674 3675 e = qemu_mallocz(sizeof (*e)); 3676 3677 e->cb = cb; 3678 e->opaque = opaque; 3679 LIST_INSERT_HEAD(&vm_change_state_head, e, entries); 3680 return e; 3681 } 3682 3683 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e) 3684 { 3685 LIST_REMOVE (e, entries); 3686 qemu_free (e); 3687 } 3688 3689 static void vm_state_notify(int running, int reason) 3690 { 3691 VMChangeStateEntry *e; 3692 3693 for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) { 3694 e->cb(e->opaque, running, reason); 3695 } 3696 } 3697 3698 static void resume_all_vcpus(void); 3699 static void pause_all_vcpus(void); 3700 3701 void vm_start(void) 3702 { 3703 if (!vm_running) { 3704 cpu_enable_ticks(); 3705 vm_running = 1; 3706 vm_state_notify(1, 0); 3707 qemu_rearm_alarm_timer(alarm_timer); 3708 resume_all_vcpus(); 3709 } 3710 } 3711 3712 /* reset/shutdown handler */ 3713 3714 typedef struct QEMUResetEntry { 3715 QEMUResetHandler *func; 3716 void *opaque; 3717 int order; 3718 struct QEMUResetEntry *next; 3719 } QEMUResetEntry; 3720 3721 static QEMUResetEntry *first_reset_entry; 3722 static int reset_requested; 3723 static int shutdown_requested; 3724 static int powerdown_requested; 3725 static int debug_requested; 3726 static int vmstop_requested; 3727 3728 int qemu_shutdown_requested(void) 3729 { 3730 int r = shutdown_requested; 3731 shutdown_requested = 0; 3732 return r; 3733 } 3734 3735 int qemu_reset_requested(void) 3736 { 3737 int r = reset_requested; 3738 reset_requested = 0; 3739 return r; 3740 } 3741 3742 int qemu_powerdown_requested(void) 3743 { 3744 int r = powerdown_requested; 3745 powerdown_requested = 0; 3746 return r; 3747 } 3748 3749 static int qemu_debug_requested(void) 3750 { 3751 int r = debug_requested; 3752 debug_requested = 0; 3753 return r; 3754 } 3755 3756 static int qemu_vmstop_requested(void) 3757 { 3758 int r = vmstop_requested; 3759 vmstop_requested = 0; 3760 return r; 3761 } 3762 3763 static void do_vm_stop(int reason) 3764 { 3765 if (vm_running) { 3766 cpu_disable_ticks(); 3767 vm_running = 0; 3768 pause_all_vcpus(); 3769 vm_state_notify(0, reason); 3770 } 3771 } 3772 3773 void qemu_register_reset(QEMUResetHandler *func, int order, void *opaque) 3774 { 3775 QEMUResetEntry **pre, *re; 3776 3777 pre = &first_reset_entry; 3778 while (*pre != NULL && (*pre)->order >= order) { 3779 pre = &(*pre)->next; 3780 } 3781 re = qemu_mallocz(sizeof(QEMUResetEntry)); 3782 re->func = func; 3783 re->opaque = opaque; 3784 re->order = order; 3785 re->next = NULL; 3786 *pre = re; 3787 } 3788 3789 void qemu_system_reset(void) 3790 { 3791 QEMUResetEntry *re; 3792 3793 /* reset all devices */ 3794 for(re = first_reset_entry; re != NULL; re = re->next) { 3795 re->func(re->opaque); 3796 } 3797 } 3798 3799 void qemu_system_reset_request(void) 3800 { 3801 if (no_reboot) { 3802 shutdown_requested = 1; 3803 } else { 3804 reset_requested = 1; 3805 } 3806 qemu_notify_event(); 3807 } 3808 3809 void qemu_system_shutdown_request(void) 3810 { 3811 shutdown_requested = 1; 3812 qemu_notify_event(); 3813 } 3814 3815 void qemu_system_powerdown_request(void) 3816 { 3817 powerdown_requested = 1; 3818 qemu_notify_event(); 3819 } 3820 3821 #ifdef CONFIG_IOTHREAD 3822 static void qemu_system_vmstop_request(int reason) 3823 { 3824 vmstop_requested = reason; 3825 qemu_notify_event(); 3826 } 3827 #endif 3828 3829 #ifndef _WIN32 3830 static int io_thread_fd = -1; 3831 3832 static void qemu_event_increment(void) 3833 { 3834 static const char byte = 0; 3835 3836 if (io_thread_fd == -1) 3837 return; 3838 3839 write(io_thread_fd, &byte, sizeof(byte)); 3840 } 3841 3842 static void qemu_event_read(void *opaque) 3843 { 3844 int fd = (unsigned long)opaque; 3845 ssize_t len; 3846 3847 /* Drain the notify pipe */ 3848 do { 3849 char buffer[512]; 3850 len = read(fd, buffer, sizeof(buffer)); 3851 } while ((len == -1 && errno == EINTR) || len > 0); 3852 } 3853 3854 static int qemu_event_init(void) 3855 { 3856 int err; 3857 int fds[2]; 3858 3859 err = pipe(fds); 3860 if (err == -1) 3861 return -errno; 3862 3863 err = fcntl_setfl(fds[0], O_NONBLOCK); 3864 if (err < 0) 3865 goto fail; 3866 3867 err = fcntl_setfl(fds[1], O_NONBLOCK); 3868 if (err < 0) 3869 goto fail; 3870 3871 qemu_set_fd_handler2(fds[0], NULL, qemu_event_read, NULL, 3872 (void *)(unsigned long)fds[0]); 3873 3874 io_thread_fd = fds[1]; 3875 return 0; 3876 3877 fail: 3878 close(fds[0]); 3879 close(fds[1]); 3880 return err; 3881 } 3882 #else 3883 HANDLE qemu_event_handle; 3884 3885 static void dummy_event_handler(void *opaque) 3886 { 3887 } 3888 3889 static int qemu_event_init(void) 3890 { 3891 qemu_event_handle = CreateEvent(NULL, FALSE, FALSE, NULL); 3892 if (!qemu_event_handle) { 3893 perror("Failed CreateEvent"); 3894 return -1; 3895 } 3896 qemu_add_wait_object(qemu_event_handle, dummy_event_handler, NULL); 3897 return 0; 3898 } 3899 3900 static void qemu_event_increment(void) 3901 { 3902 SetEvent(qemu_event_handle); 3903 } 3904 #endif 3905 3906 static int cpu_can_run(CPUState *env) 3907 { 3908 if (env->stop) 3909 return 0; 3910 if (env->stopped) 3911 return 0; 3912 return 1; 3913 } 3914 3915 #ifndef CONFIG_IOTHREAD 3916 static int qemu_init_main_loop(void) 3917 { 3918 return qemu_event_init(); 3919 } 3920 3921 void qemu_init_vcpu(void *_env) 3922 { 3923 CPUState *env = _env; 3924 3925 if (kvm_enabled()) 3926 kvm_init_vcpu(env); 3927 return; 3928 } 3929 3930 int qemu_cpu_self(void *env) 3931 { 3932 return 1; 3933 } 3934 3935 static void resume_all_vcpus(void) 3936 { 3937 } 3938 3939 static void pause_all_vcpus(void) 3940 { 3941 } 3942 3943 void qemu_cpu_kick(void *env) 3944 { 3945 return; 3946 } 3947 3948 void qemu_notify_event(void) 3949 { 3950 CPUState *env = cpu_single_env; 3951 3952 if (env) { 3953 cpu_exit(env); 3954 #ifdef USE_KQEMU 3955 if (env->kqemu_enabled) 3956 kqemu_cpu_interrupt(env); 3957 #endif 3958 } 3959 } 3960 3961 #define qemu_mutex_lock_iothread() do { } while (0) 3962 #define qemu_mutex_unlock_iothread() do { } while (0) 3963 3964 void vm_stop(int reason) 3965 { 3966 do_vm_stop(reason); 3967 } 3968 3969 #else /* CONFIG_IOTHREAD */ 3970 3971 #include "qemu-thread.h" 3972 3973 QemuMutex qemu_global_mutex; 3974 static QemuMutex qemu_fair_mutex; 3975 3976 static QemuThread io_thread; 3977 3978 static QemuThread *tcg_cpu_thread; 3979 static QemuCond *tcg_halt_cond; 3980 3981 static int qemu_system_ready; 3982 /* cpu creation */ 3983 static QemuCond qemu_cpu_cond; 3984 /* system init */ 3985 static QemuCond qemu_system_cond; 3986 static QemuCond qemu_pause_cond; 3987 3988 static void block_io_signals(void); 3989 static void unblock_io_signals(void); 3990 static int tcg_has_work(void); 3991 3992 static int qemu_init_main_loop(void) 3993 { 3994 int ret; 3995 3996 ret = qemu_event_init(); 3997 if (ret) 3998 return ret; 3999 4000 qemu_cond_init(&qemu_pause_cond); 4001 qemu_mutex_init(&qemu_fair_mutex); 4002 qemu_mutex_init(&qemu_global_mutex); 4003 qemu_mutex_lock(&qemu_global_mutex); 4004 4005 unblock_io_signals(); 4006 qemu_thread_self(&io_thread); 4007 4008 return 0; 4009 } 4010 4011 static void qemu_wait_io_event(CPUState *env) 4012 { 4013 while (!tcg_has_work()) 4014 qemu_cond_timedwait(env->halt_cond, &qemu_global_mutex, 1000); 4015 4016 qemu_mutex_unlock(&qemu_global_mutex); 4017 4018 /* 4019 * Users of qemu_global_mutex can be starved, having no chance 4020 * to acquire it since this path will get to it first. 4021 * So use another lock to provide fairness. 4022 */ 4023 qemu_mutex_lock(&qemu_fair_mutex); 4024 qemu_mutex_unlock(&qemu_fair_mutex); 4025 4026 qemu_mutex_lock(&qemu_global_mutex); 4027 if (env->stop) { 4028 env->stop = 0; 4029 env->stopped = 1; 4030 qemu_cond_signal(&qemu_pause_cond); 4031 } 4032 } 4033 4034 static int qemu_cpu_exec(CPUState *env); 4035 4036 static void *kvm_cpu_thread_fn(void *arg) 4037 { 4038 CPUState *env = arg; 4039 4040 block_io_signals(); 4041 qemu_thread_self(env->thread); 4042 4043 /* signal CPU creation */ 4044 qemu_mutex_lock(&qemu_global_mutex); 4045 env->created = 1; 4046 qemu_cond_signal(&qemu_cpu_cond); 4047 4048 /* and wait for machine initialization */ 4049 while (!qemu_system_ready) 4050 qemu_cond_timedwait(&qemu_system_cond, &qemu_global_mutex, 100); 4051 4052 while (1) { 4053 if (cpu_can_run(env)) 4054 qemu_cpu_exec(env); 4055 qemu_wait_io_event(env); 4056 } 4057 4058 return NULL; 4059 } 4060 4061 static void tcg_cpu_exec(void); 4062 4063 static void *tcg_cpu_thread_fn(void *arg) 4064 { 4065 CPUState *env = arg; 4066 4067 block_io_signals(); 4068 qemu_thread_self(env->thread); 4069 4070 /* signal CPU creation */ 4071 qemu_mutex_lock(&qemu_global_mutex); 4072 for (env = first_cpu; env != NULL; env = env->next_cpu) 4073 env->created = 1; 4074 qemu_cond_signal(&qemu_cpu_cond); 4075 4076 /* and wait for machine initialization */ 4077 while (!qemu_system_ready) 4078 qemu_cond_timedwait(&qemu_system_cond, &qemu_global_mutex, 100); 4079 4080 while (1) { 4081 tcg_cpu_exec(); 4082 qemu_wait_io_event(cur_cpu); 4083 } 4084 4085 return NULL; 4086 } 4087 4088 void qemu_cpu_kick(void *_env) 4089 { 4090 CPUState *env = _env; 4091 qemu_cond_broadcast(env->halt_cond); 4092 if (kvm_enabled()) 4093 qemu_thread_signal(env->thread, SIGUSR1); 4094 } 4095 4096 int qemu_cpu_self(void *env) 4097 { 4098 return (cpu_single_env != NULL); 4099 } 4100 4101 static void cpu_signal(int sig) 4102 { 4103 if (cpu_single_env) 4104 cpu_exit(cpu_single_env); 4105 } 4106 4107 static void block_io_signals(void) 4108 { 4109 sigset_t set; 4110 struct sigaction sigact; 4111 4112 sigemptyset(&set); 4113 sigaddset(&set, SIGUSR2); 4114 sigaddset(&set, SIGIO); 4115 sigaddset(&set, SIGALRM); 4116 pthread_sigmask(SIG_BLOCK, &set, NULL); 4117 4118 sigemptyset(&set); 4119 sigaddset(&set, SIGUSR1); 4120 pthread_sigmask(SIG_UNBLOCK, &set, NULL); 4121 4122 memset(&sigact, 0, sizeof(sigact)); 4123 sigact.sa_handler = cpu_signal; 4124 sigaction(SIGUSR1, &sigact, NULL); 4125 } 4126 4127 static void unblock_io_signals(void) 4128 { 4129 sigset_t set; 4130 4131 sigemptyset(&set); 4132 sigaddset(&set, SIGUSR2); 4133 sigaddset(&set, SIGIO); 4134 sigaddset(&set, SIGALRM); 4135 pthread_sigmask(SIG_UNBLOCK, &set, NULL); 4136 4137 sigemptyset(&set); 4138 sigaddset(&set, SIGUSR1); 4139 pthread_sigmask(SIG_BLOCK, &set, NULL); 4140 } 4141 4142 static void qemu_signal_lock(unsigned int msecs) 4143 { 4144 qemu_mutex_lock(&qemu_fair_mutex); 4145 4146 while (qemu_mutex_trylock(&qemu_global_mutex)) { 4147 qemu_thread_signal(tcg_cpu_thread, SIGUSR1); 4148 if (!qemu_mutex_timedlock(&qemu_global_mutex, msecs)) 4149 break; 4150 } 4151 qemu_mutex_unlock(&qemu_fair_mutex); 4152 } 4153 4154 static void qemu_mutex_lock_iothread(void) 4155 { 4156 if (kvm_enabled()) { 4157 qemu_mutex_lock(&qemu_fair_mutex); 4158 qemu_mutex_lock(&qemu_global_mutex); 4159 qemu_mutex_unlock(&qemu_fair_mutex); 4160 } else 4161 qemu_signal_lock(100); 4162 } 4163 4164 static void qemu_mutex_unlock_iothread(void) 4165 { 4166 qemu_mutex_unlock(&qemu_global_mutex); 4167 } 4168 4169 static int all_vcpus_paused(void) 4170 { 4171 CPUState *penv = first_cpu; 4172 4173 while (penv) { 4174 if (!penv->stopped) 4175 return 0; 4176 penv = (CPUState *)penv->next_cpu; 4177 } 4178 4179 return 1; 4180 } 4181 4182 static void pause_all_vcpus(void) 4183 { 4184 CPUState *penv = first_cpu; 4185 4186 while (penv) { 4187 penv->stop = 1; 4188 qemu_thread_signal(penv->thread, SIGUSR1); 4189 qemu_cpu_kick(penv); 4190 penv = (CPUState *)penv->next_cpu; 4191 } 4192 4193 while (!all_vcpus_paused()) { 4194 qemu_cond_timedwait(&qemu_pause_cond, &qemu_global_mutex, 100); 4195 penv = first_cpu; 4196 while (penv) { 4197 qemu_thread_signal(penv->thread, SIGUSR1); 4198 penv = (CPUState *)penv->next_cpu; 4199 } 4200 } 4201 } 4202 4203 static void resume_all_vcpus(void) 4204 { 4205 CPUState *penv = first_cpu; 4206 4207 while (penv) { 4208 penv->stop = 0; 4209 penv->stopped = 0; 4210 qemu_thread_signal(penv->thread, SIGUSR1); 4211 qemu_cpu_kick(penv); 4212 penv = (CPUState *)penv->next_cpu; 4213 } 4214 } 4215 4216 static void tcg_init_vcpu(void *_env) 4217 { 4218 CPUState *env = _env; 4219 /* share a single thread for all cpus with TCG */ 4220 if (!tcg_cpu_thread) { 4221 env->thread = qemu_mallocz(sizeof(QemuThread)); 4222 env->halt_cond = qemu_mallocz(sizeof(QemuCond)); 4223 qemu_cond_init(env->halt_cond); 4224 qemu_thread_create(env->thread, tcg_cpu_thread_fn, env); 4225 while (env->created == 0) 4226 qemu_cond_timedwait(&qemu_cpu_cond, &qemu_global_mutex, 100); 4227 tcg_cpu_thread = env->thread; 4228 tcg_halt_cond = env->halt_cond; 4229 } else { 4230 env->thread = tcg_cpu_thread; 4231 env->halt_cond = tcg_halt_cond; 4232 } 4233 } 4234 4235 static void kvm_start_vcpu(CPUState *env) 4236 { 4237 #if 0 4238 kvm_init_vcpu(env); 4239 env->thread = qemu_mallocz(sizeof(QemuThread)); 4240 env->halt_cond = qemu_mallocz(sizeof(QemuCond)); 4241 qemu_cond_init(env->halt_cond); 4242 qemu_thread_create(env->thread, kvm_cpu_thread_fn, env); 4243 while (env->created == 0) 4244 qemu_cond_timedwait(&qemu_cpu_cond, &qemu_global_mutex, 100); 4245 #endif 4246 } 4247 4248 void qemu_init_vcpu(void *_env) 4249 { 4250 CPUState *env = _env; 4251 4252 if (kvm_enabled()) 4253 kvm_start_vcpu(env); 4254 else 4255 tcg_init_vcpu(env); 4256 } 4257 4258 void qemu_notify_event(void) 4259 { 4260 qemu_event_increment(); 4261 } 4262 4263 void vm_stop(int reason) 4264 { 4265 QemuThread me; 4266 qemu_thread_self(&me); 4267 4268 if (!qemu_thread_equal(&me, &io_thread)) { 4269 qemu_system_vmstop_request(reason); 4270 /* 4271 * FIXME: should not return to device code in case 4272 * vm_stop() has been requested. 4273 */ 4274 if (cpu_single_env) { 4275 cpu_exit(cpu_single_env); 4276 cpu_single_env->stop = 1; 4277 } 4278 return; 4279 } 4280 do_vm_stop(reason); 4281 } 4282 4283 #endif 4284 4285 4286 #ifdef _WIN32 4287 static void host_main_loop_wait(int *timeout) 4288 { 4289 int ret, ret2, i; 4290 PollingEntry *pe; 4291 4292 4293 /* XXX: need to suppress polling by better using win32 events */ 4294 ret = 0; 4295 for(pe = first_polling_entry; pe != NULL; pe = pe->next) { 4296 ret |= pe->func(pe->opaque); 4297 } 4298 if (ret == 0) { 4299 int err; 4300 WaitObjects *w = &wait_objects; 4301 4302 ret = WaitForMultipleObjects(w->num, w->events, FALSE, *timeout); 4303 if (WAIT_OBJECT_0 + 0 <= ret && ret <= WAIT_OBJECT_0 + w->num - 1) { 4304 if (w->func[ret - WAIT_OBJECT_0]) 4305 w->func[ret - WAIT_OBJECT_0](w->opaque[ret - WAIT_OBJECT_0]); 4306 4307 /* Check for additional signaled events */ 4308 for(i = (ret - WAIT_OBJECT_0 + 1); i < w->num; i++) { 4309 4310 /* Check if event is signaled */ 4311 ret2 = WaitForSingleObject(w->events[i], 0); 4312 if(ret2 == WAIT_OBJECT_0) { 4313 if (w->func[i]) 4314 w->func[i](w->opaque[i]); 4315 } else if (ret2 == WAIT_TIMEOUT) { 4316 } else { 4317 err = GetLastError(); 4318 fprintf(stderr, "WaitForSingleObject error %d %d\n", i, err); 4319 } 4320 } 4321 } else if (ret == WAIT_TIMEOUT) { 4322 } else { 4323 err = GetLastError(); 4324 fprintf(stderr, "WaitForMultipleObjects error %d %d\n", ret, err); 4325 } 4326 } 4327 4328 *timeout = 0; 4329 } 4330 #else 4331 static void host_main_loop_wait(int *timeout) 4332 { 4333 } 4334 #endif 4335 4336 void main_loop_wait(int timeout) 4337 { 4338 IOHandlerRecord *ioh; 4339 fd_set rfds, wfds, xfds; 4340 int ret, nfds; 4341 struct timeval tv; 4342 4343 qemu_bh_update_timeout(&timeout); 4344 4345 host_main_loop_wait(&timeout); 4346 4347 /* poll any events */ 4348 /* XXX: separate device handlers from system ones */ 4349 nfds = -1; 4350 FD_ZERO(&rfds); 4351 FD_ZERO(&wfds); 4352 FD_ZERO(&xfds); 4353 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) { 4354 if (ioh->deleted) 4355 continue; 4356 if (ioh->fd_read && 4357 (!ioh->fd_read_poll || 4358 ioh->fd_read_poll(ioh->opaque) != 0)) { 4359 FD_SET(ioh->fd, &rfds); 4360 if (ioh->fd > nfds) 4361 nfds = ioh->fd; 4362 } 4363 if (ioh->fd_write) { 4364 FD_SET(ioh->fd, &wfds); 4365 if (ioh->fd > nfds) 4366 nfds = ioh->fd; 4367 } 4368 } 4369 4370 tv.tv_sec = timeout / 1000; 4371 tv.tv_usec = (timeout % 1000) * 1000; 4372 4373 #if defined(CONFIG_SLIRP) 4374 if (slirp_is_inited()) { 4375 slirp_select_fill(&nfds, &rfds, &wfds, &xfds); 4376 } 4377 #endif 4378 qemu_mutex_unlock_iothread(); 4379 ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv); 4380 qemu_mutex_lock_iothread(); 4381 if (ret > 0) { 4382 IOHandlerRecord **pioh; 4383 4384 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) { 4385 if (!ioh->deleted && ioh->fd_read && FD_ISSET(ioh->fd, &rfds)) { 4386 ioh->fd_read(ioh->opaque); 4387 } 4388 if (!ioh->deleted && ioh->fd_write && FD_ISSET(ioh->fd, &wfds)) { 4389 ioh->fd_write(ioh->opaque); 4390 } 4391 } 4392 4393 /* remove deleted IO handlers */ 4394 pioh = &first_io_handler; 4395 while (*pioh) { 4396 ioh = *pioh; 4397 if (ioh->deleted) { 4398 *pioh = ioh->next; 4399 qemu_free(ioh); 4400 } else 4401 pioh = &ioh->next; 4402 } 4403 } 4404 #if defined(CONFIG_SLIRP) 4405 if (slirp_is_inited()) { 4406 if (ret < 0) { 4407 FD_ZERO(&rfds); 4408 FD_ZERO(&wfds); 4409 FD_ZERO(&xfds); 4410 } 4411 slirp_select_poll(&rfds, &wfds, &xfds); 4412 } 4413 #endif 4414 charpipe_poll(); 4415 4416 /* rearm timer, if not periodic */ 4417 if (alarm_timer->flags & ALARM_FLAG_EXPIRED) { 4418 alarm_timer->flags &= ~ALARM_FLAG_EXPIRED; 4419 qemu_rearm_alarm_timer(alarm_timer); 4420 } 4421 4422 /* vm time timers */ 4423 if (vm_running) { 4424 if (!cur_cpu || likely(!(cur_cpu->singlestep_enabled & SSTEP_NOTIMER))) 4425 qemu_run_timers(&active_timers[QEMU_TIMER_VIRTUAL], 4426 qemu_get_clock(vm_clock)); 4427 } 4428 4429 /* real time timers */ 4430 qemu_run_timers(&active_timers[QEMU_TIMER_REALTIME], 4431 qemu_get_clock(rt_clock)); 4432 4433 /* Check bottom-halves last in case any of the earlier events triggered 4434 them. */ 4435 qemu_bh_poll(); 4436 4437 } 4438 4439 static int qemu_cpu_exec(CPUState *env) 4440 { 4441 int ret; 4442 #ifdef CONFIG_PROFILER 4443 int64_t ti; 4444 #endif 4445 4446 #ifdef CONFIG_PROFILER 4447 ti = profile_getclock(); 4448 #endif 4449 if (use_icount) { 4450 int64_t count; 4451 int decr; 4452 qemu_icount -= (env->icount_decr.u16.low + env->icount_extra); 4453 env->icount_decr.u16.low = 0; 4454 env->icount_extra = 0; 4455 count = qemu_next_deadline(); 4456 count = (count + (1 << icount_time_shift) - 1) 4457 >> icount_time_shift; 4458 qemu_icount += count; 4459 decr = (count > 0xffff) ? 0xffff : count; 4460 count -= decr; 4461 env->icount_decr.u16.low = decr; 4462 env->icount_extra = count; 4463 } 4464 #ifdef CONFIG_TRACE 4465 if (tbflush_requested) { 4466 tbflush_requested = 0; 4467 tb_flush(env); 4468 return EXCP_INTERRUPT; 4469 } 4470 #endif 4471 4472 4473 ret = cpu_exec(env); 4474 #ifdef CONFIG_PROFILER 4475 qemu_time += profile_getclock() - ti; 4476 #endif 4477 if (use_icount) { 4478 /* Fold pending instructions back into the 4479 instruction counter, and clear the interrupt flag. */ 4480 qemu_icount -= (env->icount_decr.u16.low 4481 + env->icount_extra); 4482 env->icount_decr.u32 = 0; 4483 env->icount_extra = 0; 4484 } 4485 return ret; 4486 } 4487 4488 static void tcg_cpu_exec(void) 4489 { 4490 int ret = 0; 4491 4492 if (next_cpu == NULL) 4493 next_cpu = first_cpu; 4494 for (; next_cpu != NULL; next_cpu = next_cpu->next_cpu) { 4495 CPUState *env = cur_cpu = next_cpu; 4496 4497 if (!vm_running) 4498 break; 4499 if (timer_alarm_pending) { 4500 timer_alarm_pending = 0; 4501 break; 4502 } 4503 if (cpu_can_run(env)) 4504 ret = qemu_cpu_exec(env); 4505 if (ret == EXCP_DEBUG) { 4506 gdb_set_stop_cpu(env); 4507 debug_requested = 1; 4508 break; 4509 } 4510 } 4511 } 4512 4513 static int cpu_has_work(CPUState *env) 4514 { 4515 if (env->stop) 4516 return 1; 4517 if (env->stopped) 4518 return 0; 4519 if (!env->halted) 4520 return 1; 4521 if (qemu_cpu_has_work(env)) 4522 return 1; 4523 return 0; 4524 } 4525 4526 static int tcg_has_work(void) 4527 { 4528 CPUState *env; 4529 4530 for (env = first_cpu; env != NULL; env = env->next_cpu) 4531 if (cpu_has_work(env)) 4532 return 1; 4533 return 0; 4534 } 4535 4536 static int qemu_calculate_timeout(void) 4537 { 4538 #ifndef CONFIG_IOTHREAD 4539 int timeout; 4540 4541 if (!vm_running) 4542 timeout = 5000; 4543 else if (tcg_has_work()) 4544 timeout = 0; 4545 else if (!use_icount) 4546 timeout = 5000; 4547 else { 4548 /* XXX: use timeout computed from timers */ 4549 int64_t add; 4550 int64_t delta; 4551 /* Advance virtual time to the next event. */ 4552 if (use_icount == 1) { 4553 /* When not using an adaptive execution frequency 4554 we tend to get badly out of sync with real time, 4555 so just delay for a reasonable amount of time. */ 4556 delta = 0; 4557 } else { 4558 delta = cpu_get_icount() - cpu_get_clock(); 4559 } 4560 if (delta > 0) { 4561 /* If virtual time is ahead of real time then just 4562 wait for IO. */ 4563 timeout = (delta / 1000000) + 1; 4564 } else { 4565 /* Wait for either IO to occur or the next 4566 timer event. */ 4567 add = qemu_next_deadline(); 4568 /* We advance the timer before checking for IO. 4569 Limit the amount we advance so that early IO 4570 activity won't get the guest too far ahead. */ 4571 if (add > 10000000) 4572 add = 10000000; 4573 delta += add; 4574 add = (add + (1 << icount_time_shift) - 1) 4575 >> icount_time_shift; 4576 qemu_icount += add; 4577 timeout = delta / 1000000; 4578 if (timeout < 0) 4579 timeout = 0; 4580 } 4581 } 4582 4583 return timeout; 4584 #else /* CONFIG_IOTHREAD */ 4585 return 1000; 4586 #endif 4587 } 4588 4589 static int vm_can_run(void) 4590 { 4591 if (powerdown_requested) 4592 return 0; 4593 if (reset_requested) 4594 return 0; 4595 if (shutdown_requested) 4596 return 0; 4597 if (debug_requested) 4598 return 0; 4599 return 1; 4600 } 4601 4602 static void main_loop(void) 4603 { 4604 int r; 4605 4606 #ifdef CONFIG_IOTHREAD 4607 qemu_system_ready = 1; 4608 qemu_cond_broadcast(&qemu_system_cond); 4609 #endif 4610 4611 for (;;) { 4612 do { 4613 #ifdef CONFIG_PROFILER 4614 int64_t ti; 4615 #endif 4616 #ifndef CONFIG_IOTHREAD 4617 tcg_cpu_exec(); 4618 #endif 4619 #ifdef CONFIG_PROFILER 4620 ti = profile_getclock(); 4621 #endif 4622 main_loop_wait(qemu_calculate_timeout()); 4623 #ifdef CONFIG_PROFILER 4624 dev_time += profile_getclock() - ti; 4625 #endif 4626 } while (vm_can_run()); 4627 4628 if (qemu_debug_requested()) 4629 vm_stop(EXCP_DEBUG); 4630 if (qemu_shutdown_requested()) { 4631 if (no_shutdown) { 4632 vm_stop(0); 4633 no_shutdown = 0; 4634 } else 4635 break; 4636 } 4637 if (qemu_reset_requested()) { 4638 pause_all_vcpus(); 4639 qemu_system_reset(); 4640 resume_all_vcpus(); 4641 } 4642 if (qemu_powerdown_requested()) 4643 qemu_system_powerdown(); 4644 if ((r = qemu_vmstop_requested())) 4645 vm_stop(r); 4646 } 4647 pause_all_vcpus(); 4648 } 4649 4650 static void version(void) 4651 { 4652 printf("QEMU PC emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n"); 4653 } 4654 4655 void qemu_help(int exitcode) 4656 { 4657 version(); 4658 printf("usage: %s [options] [disk_image]\n" 4659 "\n" 4660 "'disk_image' is a raw hard image image for IDE hard disk 0\n" 4661 "\n" 4662 #define DEF(option, opt_arg, opt_enum, opt_help) \ 4663 opt_help 4664 #define DEFHEADING(text) stringify(text) "\n" 4665 #include "qemu-options.h" 4666 #undef DEF 4667 #undef DEFHEADING 4668 #undef GEN_DOCS 4669 "\n" 4670 "During emulation, the following keys are useful:\n" 4671 "ctrl-alt-f toggle full screen\n" 4672 "ctrl-alt-n switch to virtual console 'n'\n" 4673 "ctrl-alt toggle mouse and keyboard grab\n" 4674 "\n" 4675 "When using -nographic, press 'ctrl-a h' to get some help.\n" 4676 , 4677 "qemu", 4678 DEFAULT_RAM_SIZE, 4679 #ifndef _WIN32 4680 DEFAULT_NETWORK_SCRIPT, 4681 DEFAULT_NETWORK_DOWN_SCRIPT, 4682 #endif 4683 DEFAULT_GDBSTUB_PORT, 4684 "/tmp/qemu.log"); 4685 exit(exitcode); 4686 } 4687 4688 #define HAS_ARG 0x0001 4689 4690 enum { 4691 #define DEF(option, opt_arg, opt_enum, opt_help) \ 4692 opt_enum, 4693 #define DEFHEADING(text) 4694 #include "qemu-options.h" 4695 #undef DEF 4696 #undef DEFHEADING 4697 #undef GEN_DOCS 4698 }; 4699 4700 typedef struct QEMUOption { 4701 const char *name; 4702 int flags; 4703 int index; 4704 } QEMUOption; 4705 4706 static const QEMUOption qemu_options[] = { 4707 { "h", 0, QEMU_OPTION_h }, 4708 #define DEF(option, opt_arg, opt_enum, opt_help) \ 4709 { option, opt_arg, opt_enum }, 4710 #define DEFHEADING(text) 4711 #include "qemu-options.h" 4712 #undef DEF 4713 #undef DEFHEADING 4714 #undef GEN_DOCS 4715 { NULL, 0, 0 }, 4716 }; 4717 4718 #ifdef HAS_AUDIO 4719 struct soundhw soundhw[] = { 4720 #ifdef HAS_AUDIO_CHOICE 4721 #if defined(TARGET_I386) || defined(TARGET_MIPS) 4722 { 4723 "pcspk", 4724 "PC speaker", 4725 0, 4726 1, 4727 { .init_isa = pcspk_audio_init } 4728 }, 4729 #endif 4730 4731 #ifdef CONFIG_SB16 4732 { 4733 "sb16", 4734 "Creative Sound Blaster 16", 4735 0, 4736 1, 4737 { .init_isa = SB16_init } 4738 }, 4739 #endif 4740 4741 #ifdef CONFIG_CS4231A 4742 { 4743 "cs4231a", 4744 "CS4231A", 4745 0, 4746 1, 4747 { .init_isa = cs4231a_init } 4748 }, 4749 #endif 4750 4751 #ifdef CONFIG_ADLIB 4752 { 4753 "adlib", 4754 #ifdef HAS_YMF262 4755 "Yamaha YMF262 (OPL3)", 4756 #else 4757 "Yamaha YM3812 (OPL2)", 4758 #endif 4759 0, 4760 1, 4761 { .init_isa = Adlib_init } 4762 }, 4763 #endif 4764 4765 #ifdef CONFIG_GUS 4766 { 4767 "gus", 4768 "Gravis Ultrasound GF1", 4769 0, 4770 1, 4771 { .init_isa = GUS_init } 4772 }, 4773 #endif 4774 4775 #ifdef CONFIG_AC97 4776 { 4777 "ac97", 4778 "Intel 82801AA AC97 Audio", 4779 0, 4780 0, 4781 { .init_pci = ac97_init } 4782 }, 4783 #endif 4784 4785 #ifdef CONFIG_ES1370 4786 { 4787 "es1370", 4788 "ENSONIQ AudioPCI ES1370", 4789 0, 4790 0, 4791 { .init_pci = es1370_init } 4792 }, 4793 #endif 4794 4795 #endif /* HAS_AUDIO_CHOICE */ 4796 4797 { NULL, NULL, 0, 0, { NULL } } 4798 }; 4799 4800 static void select_soundhw (const char *optarg) 4801 { 4802 struct soundhw *c; 4803 4804 if (*optarg == '?') { 4805 show_valid_cards: 4806 4807 printf ("Valid sound card names (comma separated):\n"); 4808 for (c = soundhw; c->name; ++c) { 4809 printf ("%-11s %s\n", c->name, c->descr); 4810 } 4811 printf ("\n-soundhw all will enable all of the above\n"); 4812 exit (*optarg != '?'); 4813 } 4814 else { 4815 size_t l; 4816 const char *p; 4817 char *e; 4818 int bad_card = 0; 4819 4820 if (!strcmp (optarg, "all")) { 4821 for (c = soundhw; c->name; ++c) { 4822 c->enabled = 1; 4823 } 4824 return; 4825 } 4826 4827 p = optarg; 4828 while (*p) { 4829 e = strchr (p, ','); 4830 l = !e ? strlen (p) : (size_t) (e - p); 4831 4832 for (c = soundhw; c->name; ++c) { 4833 if (!strncmp (c->name, p, l)) { 4834 c->enabled = 1; 4835 break; 4836 } 4837 } 4838 4839 if (!c->name) { 4840 if (l > 80) { 4841 fprintf (stderr, 4842 "Unknown sound card name (too big to show)\n"); 4843 } 4844 else { 4845 fprintf (stderr, "Unknown sound card name `%.*s'\n", 4846 (int) l, p); 4847 } 4848 bad_card = 1; 4849 } 4850 p += l + (e != NULL); 4851 } 4852 4853 if (bad_card) 4854 goto show_valid_cards; 4855 } 4856 } 4857 #endif 4858 4859 static void select_vgahw (const char *p) 4860 { 4861 const char *opts; 4862 4863 cirrus_vga_enabled = 0; 4864 std_vga_enabled = 0; 4865 vmsvga_enabled = 0; 4866 xenfb_enabled = 0; 4867 if (strstart(p, "std", &opts)) { 4868 std_vga_enabled = 1; 4869 } else if (strstart(p, "cirrus", &opts)) { 4870 cirrus_vga_enabled = 1; 4871 } else if (strstart(p, "vmware", &opts)) { 4872 vmsvga_enabled = 1; 4873 } else if (strstart(p, "xenfb", &opts)) { 4874 xenfb_enabled = 1; 4875 } else if (!strstart(p, "none", &opts)) { 4876 invalid_vga: 4877 fprintf(stderr, "Unknown vga type: %s\n", p); 4878 exit(1); 4879 } 4880 while (*opts) { 4881 const char *nextopt; 4882 4883 if (strstart(opts, ",retrace=", &nextopt)) { 4884 opts = nextopt; 4885 if (strstart(opts, "dumb", &nextopt)) 4886 vga_retrace_method = VGA_RETRACE_DUMB; 4887 else if (strstart(opts, "precise", &nextopt)) 4888 vga_retrace_method = VGA_RETRACE_PRECISE; 4889 else goto invalid_vga; 4890 } else goto invalid_vga; 4891 opts = nextopt; 4892 } 4893 } 4894 4895 #ifdef _WIN32 4896 static BOOL WINAPI qemu_ctrl_handler(DWORD type) 4897 { 4898 exit(STATUS_CONTROL_C_EXIT); 4899 return TRUE; 4900 } 4901 #endif 4902 4903 int qemu_uuid_parse(const char *str, uint8_t *uuid) 4904 { 4905 int ret; 4906 4907 if(strlen(str) != 36) 4908 return -1; 4909 4910 ret = sscanf(str, UUID_FMT, &uuid[0], &uuid[1], &uuid[2], &uuid[3], 4911 &uuid[4], &uuid[5], &uuid[6], &uuid[7], &uuid[8], &uuid[9], 4912 &uuid[10], &uuid[11], &uuid[12], &uuid[13], &uuid[14], &uuid[15]); 4913 4914 if(ret != 16) 4915 return -1; 4916 4917 #ifdef TARGET_I386 4918 smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 16, uuid); 4919 #endif 4920 4921 return 0; 4922 } 4923 4924 #define MAX_NET_CLIENTS 32 4925 4926 #ifndef _WIN32 4927 4928 static void termsig_handler(int signal) 4929 { 4930 qemu_system_shutdown_request(); 4931 } 4932 4933 static void sigchld_handler(int signal) 4934 { 4935 waitpid(-1, NULL, WNOHANG); 4936 } 4937 4938 static void sighandler_setup(void) 4939 { 4940 struct sigaction act; 4941 4942 memset(&act, 0, sizeof(act)); 4943 act.sa_handler = termsig_handler; 4944 sigaction(SIGINT, &act, NULL); 4945 sigaction(SIGHUP, &act, NULL); 4946 sigaction(SIGTERM, &act, NULL); 4947 4948 act.sa_handler = sigchld_handler; 4949 act.sa_flags = SA_NOCLDSTOP; 4950 sigaction(SIGCHLD, &act, NULL); 4951 } 4952 4953 #endif 4954 4955 #ifdef _WIN32 4956 /* Look for support files in the same directory as the executable. */ 4957 static char *find_datadir(const char *argv0) 4958 { 4959 char *p; 4960 char buf[MAX_PATH]; 4961 DWORD len; 4962 4963 len = GetModuleFileName(NULL, buf, sizeof(buf) - 1); 4964 if (len == 0) { 4965 return NULL; 4966 } 4967 4968 buf[len] = 0; 4969 p = buf + len - 1; 4970 while (p != buf && *p != '\\') 4971 p--; 4972 *p = 0; 4973 if (access(buf, R_OK) == 0) { 4974 return qemu_strdup(buf); 4975 } 4976 return NULL; 4977 } 4978 #else /* !_WIN32 */ 4979 4980 /* Find a likely location for support files using the location of the binary. 4981 For installed binaries this will be "$bindir/../share/qemu". When 4982 running from the build tree this will be "$bindir/../pc-bios". */ 4983 #define SHARE_SUFFIX "/share/qemu" 4984 #define BUILD_SUFFIX "/pc-bios" 4985 static char *find_datadir(const char *argv0) 4986 { 4987 char *dir; 4988 char *p = NULL; 4989 char *res; 4990 #ifdef PATH_MAX 4991 char buf[PATH_MAX]; 4992 #endif 4993 size_t max_len; 4994 4995 #if defined(__linux__) 4996 { 4997 int len; 4998 len = readlink("/proc/self/exe", buf, sizeof(buf) - 1); 4999 if (len > 0) { 5000 buf[len] = 0; 5001 p = buf; 5002 } 5003 } 5004 #elif defined(__FreeBSD__) 5005 { 5006 int len; 5007 len = readlink("/proc/curproc/file", buf, sizeof(buf) - 1); 5008 if (len > 0) { 5009 buf[len] = 0; 5010 p = buf; 5011 } 5012 } 5013 #endif 5014 /* If we don't have any way of figuring out the actual executable 5015 location then try argv[0]. */ 5016 if (!p) { 5017 #ifdef PATH_MAX 5018 p = buf; 5019 #endif 5020 p = realpath(argv0, p); 5021 if (!p) { 5022 return NULL; 5023 } 5024 } 5025 dir = dirname(p); 5026 dir = dirname(dir); 5027 5028 max_len = strlen(dir) + 5029 MAX(strlen(SHARE_SUFFIX), strlen(BUILD_SUFFIX)) + 1; 5030 res = qemu_mallocz(max_len); 5031 snprintf(res, max_len, "%s%s", dir, SHARE_SUFFIX); 5032 if (access(res, R_OK)) { 5033 snprintf(res, max_len, "%s%s", dir, BUILD_SUFFIX); 5034 if (access(res, R_OK)) { 5035 qemu_free(res); 5036 res = NULL; 5037 } 5038 } 5039 #ifndef PATH_MAX 5040 free(p); 5041 #endif 5042 return res; 5043 } 5044 #undef SHARE_SUFFIX 5045 #undef BUILD_SUFFIX 5046 #endif 5047 5048 char *qemu_find_file(int type, const char *name) 5049 { 5050 int len; 5051 const char *subdir; 5052 char *buf; 5053 5054 /* If name contains path separators then try it as a straight path. */ 5055 if ((strchr(name, '/') || strchr(name, '\\')) 5056 && access(name, R_OK) == 0) { 5057 return strdup(name); 5058 } 5059 switch (type) { 5060 case QEMU_FILE_TYPE_BIOS: 5061 subdir = ""; 5062 break; 5063 case QEMU_FILE_TYPE_KEYMAP: 5064 subdir = "keymaps/"; 5065 break; 5066 default: 5067 abort(); 5068 } 5069 len = strlen(data_dir) + strlen(name) + strlen(subdir) + 2; 5070 buf = qemu_mallocz(len); 5071 snprintf(buf, len, "%s/%s%s", data_dir, subdir, name); 5072 if (access(buf, R_OK)) { 5073 qemu_free(buf); 5074 return NULL; 5075 } 5076 return buf; 5077 } 5078 5079 int main(int argc, char **argv, char **envp) 5080 { 5081 const char *gdbstub_dev = NULL; 5082 uint32_t boot_devices_bitmap = 0; 5083 int i; 5084 int snapshot, linux_boot, net_boot; 5085 const char *initrd_filename; 5086 const char *kernel_filename, *kernel_cmdline; 5087 const char *boot_devices = ""; 5088 DisplayState *ds; 5089 DisplayChangeListener *dcl; 5090 int cyls, heads, secs, translation; 5091 const char *net_clients[MAX_NET_CLIENTS]; 5092 int nb_net_clients; 5093 const char *bt_opts[MAX_BT_CMDLINE]; 5094 int nb_bt_opts; 5095 int hda_index; 5096 int optind; 5097 const char *r, *optarg; 5098 CharDriverState *monitor_hd = NULL; 5099 const char *monitor_device; 5100 const char *serial_devices[MAX_SERIAL_PORTS]; 5101 int serial_device_index; 5102 const char *parallel_devices[MAX_PARALLEL_PORTS]; 5103 int parallel_device_index; 5104 const char *virtio_consoles[MAX_VIRTIO_CONSOLES]; 5105 int virtio_console_index; 5106 const char *loadvm = NULL; 5107 QEMUMachine *machine; 5108 const char *cpu_model; 5109 const char *usb_devices[MAX_USB_CMDLINE]; 5110 int usb_devices_index; 5111 #ifndef _WIN32 5112 int fds[2]; 5113 #endif 5114 int tb_size; 5115 const char *pid_file = NULL; 5116 const char *incoming = NULL; 5117 #ifndef _WIN32 5118 int fd = 0; 5119 struct passwd *pwd = NULL; 5120 const char *chroot_dir = NULL; 5121 const char *run_as = NULL; 5122 #endif 5123 CPUState *env; 5124 int show_vnc_port = 0; 5125 5126 qemu_cache_utils_init(envp); 5127 5128 LIST_INIT (&vm_change_state_head); 5129 #ifndef _WIN32 5130 { 5131 struct sigaction act; 5132 sigfillset(&act.sa_mask); 5133 act.sa_flags = 0; 5134 act.sa_handler = SIG_IGN; 5135 sigaction(SIGPIPE, &act, NULL); 5136 } 5137 #else 5138 SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE); 5139 /* Note: cpu_interrupt() is currently not SMP safe, so we force 5140 QEMU to run on a single CPU */ 5141 { 5142 HANDLE h; 5143 DWORD mask, smask; 5144 int i; 5145 h = GetCurrentProcess(); 5146 if (GetProcessAffinityMask(h, &mask, &smask)) { 5147 for(i = 0; i < 32; i++) { 5148 if (mask & (1 << i)) 5149 break; 5150 } 5151 if (i != 32) { 5152 mask = 1 << i; 5153 SetProcessAffinityMask(h, mask); 5154 } 5155 } 5156 } 5157 #endif 5158 5159 module_call_init(MODULE_INIT_MACHINE); 5160 machine = find_default_machine(); 5161 cpu_model = NULL; 5162 initrd_filename = NULL; 5163 ram_size = 0; 5164 snapshot = 0; 5165 kernel_filename = NULL; 5166 kernel_cmdline = ""; 5167 cyls = heads = secs = 0; 5168 translation = BIOS_ATA_TRANSLATION_AUTO; 5169 monitor_device = "vc:80Cx24C"; 5170 5171 serial_devices[0] = "vc:80Cx24C"; 5172 for(i = 1; i < MAX_SERIAL_PORTS; i++) 5173 serial_devices[i] = NULL; 5174 serial_device_index = 0; 5175 5176 parallel_devices[0] = "vc:80Cx24C"; 5177 for(i = 1; i < MAX_PARALLEL_PORTS; i++) 5178 parallel_devices[i] = NULL; 5179 parallel_device_index = 0; 5180 5181 for(i = 0; i < MAX_VIRTIO_CONSOLES; i++) 5182 virtio_consoles[i] = NULL; 5183 virtio_console_index = 0; 5184 5185 for (i = 0; i < MAX_NODES; i++) { 5186 node_mem[i] = 0; 5187 node_cpumask[i] = 0; 5188 } 5189 5190 usb_devices_index = 0; 5191 5192 nb_net_clients = 0; 5193 nb_bt_opts = 0; 5194 nb_drives = 0; 5195 nb_drives_opt = 0; 5196 nb_numa_nodes = 0; 5197 hda_index = -1; 5198 5199 nb_nics = 0; 5200 5201 tb_size = 0; 5202 autostart= 1; 5203 5204 register_watchdogs(); 5205 5206 optind = 1; 5207 for(;;) { 5208 if (optind >= argc) 5209 break; 5210 r = argv[optind]; 5211 if (r[0] != '-') { 5212 hda_index = drive_add(argv[optind++], HD_ALIAS, 0); 5213 } else { 5214 const QEMUOption *popt; 5215 5216 optind++; 5217 /* Treat --foo the same as -foo. */ 5218 if (r[1] == '-') 5219 r++; 5220 popt = qemu_options; 5221 for(;;) { 5222 if (!popt->name) { 5223 fprintf(stderr, "%s: invalid option -- '%s'\n", 5224 argv[0], r); 5225 exit(1); 5226 } 5227 if (!strcmp(popt->name, r + 1)) 5228 break; 5229 popt++; 5230 } 5231 if (popt->flags & HAS_ARG) { 5232 if (optind >= argc) { 5233 fprintf(stderr, "%s: option '%s' requires an argument\n", 5234 argv[0], r); 5235 exit(1); 5236 } 5237 optarg = argv[optind++]; 5238 } else { 5239 optarg = NULL; 5240 } 5241 5242 switch(popt->index) { 5243 case QEMU_OPTION_M: 5244 machine = find_machine(optarg); 5245 if (!machine) { 5246 QEMUMachine *m; 5247 printf("Supported machines are:\n"); 5248 for(m = first_machine; m != NULL; m = m->next) { 5249 printf("%-10s %s%s\n", 5250 m->name, m->desc, 5251 m->is_default ? " (default)" : ""); 5252 } 5253 exit(*optarg != '?'); 5254 } 5255 break; 5256 case QEMU_OPTION_cpu: 5257 /* hw initialization will check this */ 5258 if (*optarg == '?') { 5259 /* XXX: implement xxx_cpu_list for targets that still miss it */ 5260 #if defined(cpu_list) 5261 cpu_list(stdout, &fprintf); 5262 #endif 5263 exit(0); 5264 } else { 5265 cpu_model = optarg; 5266 } 5267 break; 5268 case QEMU_OPTION_initrd: 5269 initrd_filename = optarg; 5270 break; 5271 case QEMU_OPTION_hda: 5272 if (cyls == 0) 5273 hda_index = drive_add(optarg, HD_ALIAS, 0); 5274 else 5275 hda_index = drive_add(optarg, HD_ALIAS 5276 ",cyls=%d,heads=%d,secs=%d%s", 5277 0, cyls, heads, secs, 5278 translation == BIOS_ATA_TRANSLATION_LBA ? 5279 ",trans=lba" : 5280 translation == BIOS_ATA_TRANSLATION_NONE ? 5281 ",trans=none" : ""); 5282 break; 5283 case QEMU_OPTION_hdb: 5284 case QEMU_OPTION_hdc: 5285 case QEMU_OPTION_hdd: 5286 drive_add(optarg, HD_ALIAS, popt->index - QEMU_OPTION_hda); 5287 break; 5288 case QEMU_OPTION_drive: 5289 drive_add(NULL, "%s", optarg); 5290 break; 5291 case QEMU_OPTION_mtdblock: 5292 drive_add(optarg, MTD_ALIAS); 5293 break; 5294 case QEMU_OPTION_sd: 5295 drive_add(optarg, SD_ALIAS); 5296 break; 5297 case QEMU_OPTION_pflash: 5298 drive_add(optarg, PFLASH_ALIAS); 5299 break; 5300 case QEMU_OPTION_snapshot: 5301 snapshot = 1; 5302 break; 5303 case QEMU_OPTION_hdachs: 5304 { 5305 const char *p; 5306 p = optarg; 5307 cyls = strtol(p, (char **)&p, 0); 5308 if (cyls < 1 || cyls > 16383) 5309 goto chs_fail; 5310 if (*p != ',') 5311 goto chs_fail; 5312 p++; 5313 heads = strtol(p, (char **)&p, 0); 5314 if (heads < 1 || heads > 16) 5315 goto chs_fail; 5316 if (*p != ',') 5317 goto chs_fail; 5318 p++; 5319 secs = strtol(p, (char **)&p, 0); 5320 if (secs < 1 || secs > 63) 5321 goto chs_fail; 5322 if (*p == ',') { 5323 p++; 5324 if (!strcmp(p, "none")) 5325 translation = BIOS_ATA_TRANSLATION_NONE; 5326 else if (!strcmp(p, "lba")) 5327 translation = BIOS_ATA_TRANSLATION_LBA; 5328 else if (!strcmp(p, "auto")) 5329 translation = BIOS_ATA_TRANSLATION_AUTO; 5330 else 5331 goto chs_fail; 5332 } else if (*p != '\0') { 5333 chs_fail: 5334 fprintf(stderr, "qemu: invalid physical CHS format\n"); 5335 exit(1); 5336 } 5337 if (hda_index != -1) 5338 snprintf(drives_opt[hda_index].opt, 5339 sizeof(drives_opt[hda_index].opt), 5340 HD_ALIAS ",cyls=%d,heads=%d,secs=%d%s", 5341 0, cyls, heads, secs, 5342 translation == BIOS_ATA_TRANSLATION_LBA ? 5343 ",trans=lba" : 5344 translation == BIOS_ATA_TRANSLATION_NONE ? 5345 ",trans=none" : ""); 5346 } 5347 break; 5348 case QEMU_OPTION_numa: 5349 if (nb_numa_nodes >= MAX_NODES) { 5350 fprintf(stderr, "qemu: too many NUMA nodes\n"); 5351 exit(1); 5352 } 5353 numa_add(optarg); 5354 break; 5355 case QEMU_OPTION_nographic: 5356 display_type = DT_NOGRAPHIC; 5357 break; 5358 #ifdef CONFIG_CURSES 5359 case QEMU_OPTION_curses: 5360 display_type = DT_CURSES; 5361 break; 5362 #endif 5363 case QEMU_OPTION_portrait: 5364 graphic_rotate = 1; 5365 break; 5366 case QEMU_OPTION_kernel: 5367 kernel_filename = optarg; 5368 break; 5369 case QEMU_OPTION_append: 5370 kernel_cmdline = optarg; 5371 break; 5372 case QEMU_OPTION_cdrom: 5373 drive_add(optarg, CDROM_ALIAS); 5374 break; 5375 case QEMU_OPTION_boot: 5376 boot_devices = optarg; 5377 /* We just do some generic consistency checks */ 5378 { 5379 /* Could easily be extended to 64 devices if needed */ 5380 const char *p; 5381 5382 boot_devices_bitmap = 0; 5383 for (p = boot_devices; *p != '\0'; p++) { 5384 /* Allowed boot devices are: 5385 * a b : floppy disk drives 5386 * c ... f : IDE disk drives 5387 * g ... m : machine implementation dependant drives 5388 * n ... p : network devices 5389 * It's up to each machine implementation to check 5390 * if the given boot devices match the actual hardware 5391 * implementation and firmware features. 5392 */ 5393 if (*p < 'a' || *p > 'q') { 5394 fprintf(stderr, "Invalid boot device '%c'\n", *p); 5395 exit(1); 5396 } 5397 if (boot_devices_bitmap & (1 << (*p - 'a'))) { 5398 fprintf(stderr, 5399 "Boot device '%c' was given twice\n",*p); 5400 exit(1); 5401 } 5402 boot_devices_bitmap |= 1 << (*p - 'a'); 5403 } 5404 } 5405 break; 5406 case QEMU_OPTION_fda: 5407 case QEMU_OPTION_fdb: 5408 drive_add(optarg, FD_ALIAS, popt->index - QEMU_OPTION_fda); 5409 break; 5410 #ifdef TARGET_I386 5411 case QEMU_OPTION_no_fd_bootchk: 5412 fd_bootchk = 0; 5413 break; 5414 #endif 5415 case QEMU_OPTION_net: 5416 if (nb_net_clients >= MAX_NET_CLIENTS) { 5417 fprintf(stderr, "qemu: too many network clients\n"); 5418 exit(1); 5419 } 5420 net_clients[nb_net_clients] = optarg; 5421 nb_net_clients++; 5422 break; 5423 #ifdef CONFIG_SLIRP 5424 case QEMU_OPTION_tftp: 5425 tftp_prefix = optarg; 5426 break; 5427 case QEMU_OPTION_bootp: 5428 bootp_filename = optarg; 5429 break; 5430 #if 0 /* ANDROID disabled */ 5431 #ifndef _WIN32 5432 case QEMU_OPTION_smb: 5433 net_slirp_smb(optarg); 5434 break; 5435 #endif 5436 #endif /* ANDROID */ 5437 case QEMU_OPTION_redir: 5438 net_slirp_redir(NULL, optarg, NULL); 5439 break; 5440 #endif 5441 case QEMU_OPTION_bt: 5442 if (nb_bt_opts >= MAX_BT_CMDLINE) { 5443 fprintf(stderr, "qemu: too many bluetooth options\n"); 5444 exit(1); 5445 } 5446 bt_opts[nb_bt_opts++] = optarg; 5447 break; 5448 #ifdef HAS_AUDIO 5449 case QEMU_OPTION_audio_help: 5450 AUD_help (); 5451 exit (0); 5452 break; 5453 case QEMU_OPTION_soundhw: 5454 select_soundhw (optarg); 5455 break; 5456 #endif 5457 case QEMU_OPTION_h: 5458 qemu_help(0); 5459 break; 5460 case QEMU_OPTION_version: 5461 version(); 5462 exit(0); 5463 break; 5464 case QEMU_OPTION_m: { 5465 uint64_t value; 5466 char *ptr; 5467 5468 value = strtoul(optarg, &ptr, 10); 5469 switch (*ptr) { 5470 case 0: case 'M': case 'm': 5471 value <<= 20; 5472 break; 5473 case 'G': case 'g': 5474 value <<= 30; 5475 break; 5476 default: 5477 fprintf(stderr, "qemu: invalid ram size: %s\n", optarg); 5478 exit(1); 5479 } 5480 5481 /* On 32-bit hosts, QEMU is limited by virtual address space */ 5482 if (value > (2047 << 20) 5483 #ifndef CONFIG_KQEMU 5484 && HOST_LONG_BITS == 32 5485 #endif 5486 ) { 5487 fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n"); 5488 exit(1); 5489 } 5490 if (value != (uint64_t)(ram_addr_t)value) { 5491 fprintf(stderr, "qemu: ram size too large\n"); 5492 exit(1); 5493 } 5494 ram_size = value; 5495 break; 5496 } 5497 case QEMU_OPTION_d: 5498 { 5499 int mask; 5500 const CPULogItem *item; 5501 5502 mask = cpu_str_to_log_mask(optarg); 5503 if (!mask) { 5504 printf("Log items (comma separated):\n"); 5505 for(item = cpu_log_items; item->mask != 0; item++) { 5506 printf("%-10s %s\n", item->name, item->help); 5507 } 5508 exit(1); 5509 } 5510 cpu_set_log(mask); 5511 } 5512 break; 5513 case QEMU_OPTION_s: 5514 gdbstub_dev = "tcp::" DEFAULT_GDBSTUB_PORT; 5515 break; 5516 case QEMU_OPTION_gdb: 5517 gdbstub_dev = optarg; 5518 break; 5519 case QEMU_OPTION_L: 5520 data_dir = optarg; 5521 break; 5522 case QEMU_OPTION_bios: 5523 bios_name = optarg; 5524 break; 5525 case QEMU_OPTION_singlestep: 5526 singlestep = 1; 5527 break; 5528 case QEMU_OPTION_S: 5529 #if 0 /* ANDROID */ 5530 fprintf(stderr, "Sorry, stopped launch is not supported in the Android emulator\n" ); 5531 exit(1); 5532 #endif 5533 autostart = 0; 5534 break; 5535 #ifndef _WIN32 5536 case QEMU_OPTION_k: 5537 keyboard_layout = optarg; 5538 break; 5539 #endif 5540 case QEMU_OPTION_localtime: 5541 rtc_utc = 0; 5542 break; 5543 case QEMU_OPTION_vga: 5544 select_vgahw (optarg); 5545 break; 5546 #if defined(TARGET_PPC) || defined(TARGET_SPARC) 5547 case QEMU_OPTION_g: 5548 { 5549 const char *p; 5550 int w, h, depth; 5551 p = optarg; 5552 w = strtol(p, (char **)&p, 10); 5553 if (w <= 0) { 5554 graphic_error: 5555 fprintf(stderr, "qemu: invalid resolution or depth\n"); 5556 exit(1); 5557 } 5558 if (*p != 'x') 5559 goto graphic_error; 5560 p++; 5561 h = strtol(p, (char **)&p, 10); 5562 if (h <= 0) 5563 goto graphic_error; 5564 if (*p == 'x') { 5565 p++; 5566 depth = strtol(p, (char **)&p, 10); 5567 if (depth != 8 && depth != 15 && depth != 16 && 5568 depth != 24 && depth != 32) 5569 goto graphic_error; 5570 } else if (*p == '\0') { 5571 depth = graphic_depth; 5572 } else { 5573 goto graphic_error; 5574 } 5575 5576 graphic_width = w; 5577 graphic_height = h; 5578 graphic_depth = depth; 5579 } 5580 break; 5581 #endif 5582 case QEMU_OPTION_echr: 5583 { 5584 char *r; 5585 term_escape_char = strtol(optarg, &r, 0); 5586 if (r == optarg) 5587 printf("Bad argument to echr\n"); 5588 break; 5589 } 5590 case QEMU_OPTION_monitor: 5591 monitor_device = optarg; 5592 break; 5593 case QEMU_OPTION_serial: 5594 if (serial_device_index >= MAX_SERIAL_PORTS) { 5595 fprintf(stderr, "qemu: too many serial ports\n"); 5596 exit(1); 5597 } 5598 serial_devices[serial_device_index] = optarg; 5599 serial_device_index++; 5600 break; 5601 case QEMU_OPTION_watchdog: 5602 i = select_watchdog(optarg); 5603 if (i > 0) 5604 exit (i == 1 ? 1 : 0); 5605 break; 5606 case QEMU_OPTION_watchdog_action: 5607 if (select_watchdog_action(optarg) == -1) { 5608 fprintf(stderr, "Unknown -watchdog-action parameter\n"); 5609 exit(1); 5610 } 5611 break; 5612 case QEMU_OPTION_virtiocon: 5613 if (virtio_console_index >= MAX_VIRTIO_CONSOLES) { 5614 fprintf(stderr, "qemu: too many virtio consoles\n"); 5615 exit(1); 5616 } 5617 virtio_consoles[virtio_console_index] = optarg; 5618 virtio_console_index++; 5619 break; 5620 case QEMU_OPTION_parallel: 5621 if (parallel_device_index >= MAX_PARALLEL_PORTS) { 5622 fprintf(stderr, "qemu: too many parallel ports\n"); 5623 exit(1); 5624 } 5625 parallel_devices[parallel_device_index] = optarg; 5626 parallel_device_index++; 5627 break; 5628 case QEMU_OPTION_loadvm: 5629 loadvm = optarg; 5630 break; 5631 case QEMU_OPTION_full_screen: 5632 full_screen = 1; 5633 break; 5634 #ifdef CONFIG_SDL 5635 case QEMU_OPTION_no_frame: 5636 no_frame = 1; 5637 break; 5638 case QEMU_OPTION_alt_grab: 5639 alt_grab = 1; 5640 break; 5641 case QEMU_OPTION_no_quit: 5642 no_quit = 1; 5643 break; 5644 case QEMU_OPTION_sdl: 5645 display_type = DT_SDL; 5646 break; 5647 #endif 5648 case QEMU_OPTION_pidfile: 5649 pid_file = optarg; 5650 break; 5651 #ifdef TARGET_I386 5652 case QEMU_OPTION_win2k_hack: 5653 win2k_install_hack = 1; 5654 break; 5655 case QEMU_OPTION_rtc_td_hack: 5656 rtc_td_hack = 1; 5657 break; 5658 case QEMU_OPTION_acpitable: 5659 if(acpi_table_add(optarg) < 0) { 5660 fprintf(stderr, "Wrong acpi table provided\n"); 5661 exit(1); 5662 } 5663 break; 5664 case QEMU_OPTION_smbios: 5665 if(smbios_entry_add(optarg) < 0) { 5666 fprintf(stderr, "Wrong smbios provided\n"); 5667 exit(1); 5668 } 5669 break; 5670 #endif 5671 #ifdef CONFIG_KQEMU 5672 case QEMU_OPTION_no_kqemu: 5673 kqemu_allowed = 0; 5674 break; 5675 case QEMU_OPTION_kernel_kqemu: 5676 kqemu_allowed = 2; 5677 break; 5678 #endif 5679 #ifdef CONFIG_KVM 5680 case QEMU_OPTION_enable_kvm: 5681 kvm_allowed = 1; 5682 #ifdef CONFIG_KQEMU 5683 kqemu_allowed = 0; 5684 #endif 5685 break; 5686 #endif 5687 case QEMU_OPTION_usb: 5688 usb_enabled = 1; 5689 break; 5690 case QEMU_OPTION_usbdevice: 5691 usb_enabled = 1; 5692 if (usb_devices_index >= MAX_USB_CMDLINE) { 5693 fprintf(stderr, "Too many USB devices\n"); 5694 exit(1); 5695 } 5696 usb_devices[usb_devices_index] = optarg; 5697 usb_devices_index++; 5698 break; 5699 case QEMU_OPTION_smp: 5700 smp_cpus = atoi(optarg); 5701 if (smp_cpus < 1) { 5702 fprintf(stderr, "Invalid number of CPUs\n"); 5703 exit(1); 5704 } 5705 break; 5706 case QEMU_OPTION_vnc: 5707 display_type = DT_VNC; 5708 vnc_display = optarg; 5709 break; 5710 #ifdef TARGET_I386 5711 case QEMU_OPTION_no_acpi: 5712 acpi_enabled = 0; 5713 break; 5714 case QEMU_OPTION_no_hpet: 5715 no_hpet = 1; 5716 break; 5717 case QEMU_OPTION_no_virtio_balloon: 5718 no_virtio_balloon = 1; 5719 break; 5720 #endif 5721 case QEMU_OPTION_no_reboot: 5722 no_reboot = 1; 5723 break; 5724 case QEMU_OPTION_no_shutdown: 5725 no_shutdown = 1; 5726 break; 5727 case QEMU_OPTION_show_cursor: 5728 cursor_hide = 0; 5729 break; 5730 case QEMU_OPTION_uuid: 5731 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) { 5732 fprintf(stderr, "Fail to parse UUID string." 5733 " Wrong format.\n"); 5734 exit(1); 5735 } 5736 break; 5737 #ifndef _WIN32 5738 case QEMU_OPTION_daemonize: 5739 daemonize = 1; 5740 break; 5741 #endif 5742 case QEMU_OPTION_option_rom: 5743 if (nb_option_roms >= MAX_OPTION_ROMS) { 5744 fprintf(stderr, "Too many option ROMs\n"); 5745 exit(1); 5746 } 5747 option_rom[nb_option_roms] = optarg; 5748 nb_option_roms++; 5749 break; 5750 #if defined(TARGET_ARM) || defined(TARGET_M68K) 5751 case QEMU_OPTION_semihosting: 5752 semihosting_enabled = 1; 5753 break; 5754 #endif 5755 case QEMU_OPTION_name: 5756 qemu_name = optarg; 5757 break; 5758 #if defined(TARGET_SPARC) || defined(TARGET_PPC) 5759 case QEMU_OPTION_prom_env: 5760 if (nb_prom_envs >= MAX_PROM_ENVS) { 5761 fprintf(stderr, "Too many prom variables\n"); 5762 exit(1); 5763 } 5764 prom_envs[nb_prom_envs] = optarg; 5765 nb_prom_envs++; 5766 break; 5767 #endif 5768 #ifdef TARGET_ARM 5769 case QEMU_OPTION_old_param: 5770 old_param = 1; 5771 break; 5772 #endif 5773 case QEMU_OPTION_clock: 5774 configure_alarms(optarg); 5775 break; 5776 case QEMU_OPTION_startdate: 5777 { 5778 struct tm tm; 5779 time_t rtc_start_date; 5780 if (!strcmp(optarg, "now")) { 5781 rtc_date_offset = -1; 5782 } else { 5783 if (sscanf(optarg, "%d-%d-%dT%d:%d:%d", 5784 &tm.tm_year, 5785 &tm.tm_mon, 5786 &tm.tm_mday, 5787 &tm.tm_hour, 5788 &tm.tm_min, 5789 &tm.tm_sec) == 6) { 5790 /* OK */ 5791 } else if (sscanf(optarg, "%d-%d-%d", 5792 &tm.tm_year, 5793 &tm.tm_mon, 5794 &tm.tm_mday) == 3) { 5795 tm.tm_hour = 0; 5796 tm.tm_min = 0; 5797 tm.tm_sec = 0; 5798 } else { 5799 goto date_fail; 5800 } 5801 tm.tm_year -= 1900; 5802 tm.tm_mon--; 5803 rtc_start_date = mktimegm(&tm); 5804 if (rtc_start_date == -1) { 5805 date_fail: 5806 fprintf(stderr, "Invalid date format. Valid format are:\n" 5807 "'now' or '2006-06-17T16:01:21' or '2006-06-17'\n"); 5808 exit(1); 5809 } 5810 rtc_date_offset = time(NULL) - rtc_start_date; 5811 } 5812 } 5813 break; 5814 case QEMU_OPTION_tb_size: 5815 tb_size = strtol(optarg, NULL, 0); 5816 if (tb_size < 0) 5817 tb_size = 0; 5818 break; 5819 case QEMU_OPTION_icount: 5820 use_icount = 1; 5821 if (strcmp(optarg, "auto") == 0) { 5822 icount_time_shift = -1; 5823 } else { 5824 icount_time_shift = strtol(optarg, NULL, 0); 5825 } 5826 break; 5827 case QEMU_OPTION_incoming: 5828 incoming = optarg; 5829 break; 5830 #ifndef _WIN32 5831 case QEMU_OPTION_chroot: 5832 chroot_dir = optarg; 5833 break; 5834 case QEMU_OPTION_runas: 5835 run_as = optarg; 5836 break; 5837 #endif 5838 #ifdef CONFIG_XEN 5839 case QEMU_OPTION_xen_domid: 5840 xen_domid = atoi(optarg); 5841 break; 5842 case QEMU_OPTION_xen_create: 5843 xen_mode = XEN_CREATE; 5844 break; 5845 case QEMU_OPTION_xen_attach: 5846 xen_mode = XEN_ATTACH; 5847 break; 5848 #endif 5849 5850 5851 case QEMU_OPTION_mic: 5852 audio_input_source = (char*)optarg; 5853 break; 5854 #ifdef CONFIG_TRACE 5855 case QEMU_OPTION_trace: 5856 trace_filename = optarg; 5857 tracing = 1; 5858 break; 5859 #if 0 5860 case QEMU_OPTION_trace_miss: 5861 trace_cache_miss = 1; 5862 break; 5863 case QEMU_OPTION_trace_addr: 5864 trace_all_addr = 1; 5865 break; 5866 #endif 5867 case QEMU_OPTION_tracing: 5868 if (strcmp(optarg, "off") == 0) 5869 tracing = 0; 5870 else if (strcmp(optarg, "on") == 0 && trace_filename) 5871 tracing = 1; 5872 else { 5873 fprintf(stderr, "Unexpected option to -tracing ('%s')\n", 5874 optarg); 5875 exit(1); 5876 } 5877 break; 5878 #if 0 5879 case QEMU_OPTION_dcache_load_miss: 5880 dcache_load_miss_penalty = atoi(optarg); 5881 break; 5882 case QEMU_OPTION_dcache_store_miss: 5883 dcache_store_miss_penalty = atoi(optarg); 5884 break; 5885 #endif 5886 #endif 5887 #ifdef CONFIG_NAND 5888 case QEMU_OPTION_nand: 5889 nand_add_dev(optarg); 5890 break; 5891 #endif 5892 } 5893 } 5894 } 5895 5896 /* If no data_dir is specified then try to find it relative to the 5897 executable path. */ 5898 if (!data_dir) { 5899 data_dir = find_datadir(argv[0]); 5900 } 5901 /* If all else fails use the install patch specified when building. */ 5902 if (!data_dir) { 5903 data_dir = CONFIG_QEMU_SHAREDIR; 5904 } 5905 5906 #if defined(CONFIG_KVM) && defined(CONFIG_KQEMU) 5907 if (kvm_allowed && kqemu_allowed) { 5908 fprintf(stderr, 5909 "You can not enable both KVM and kqemu at the same time\n"); 5910 exit(1); 5911 } 5912 #endif 5913 5914 machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */ 5915 if (smp_cpus > machine->max_cpus) { 5916 fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus " 5917 "supported by machine `%s' (%d)\n", smp_cpus, machine->name, 5918 machine->max_cpus); 5919 exit(1); 5920 } 5921 5922 if (display_type == DT_NOGRAPHIC) { 5923 if (serial_device_index == 0) 5924 serial_devices[0] = "stdio"; 5925 if (parallel_device_index == 0) 5926 parallel_devices[0] = "null"; 5927 if (strncmp(monitor_device, "vc", 2) == 0) 5928 monitor_device = "stdio"; 5929 } 5930 5931 #ifndef _WIN32 5932 if (daemonize) { 5933 pid_t pid; 5934 5935 if (pipe(fds) == -1) 5936 exit(1); 5937 5938 pid = fork(); 5939 if (pid > 0) { 5940 uint8_t status; 5941 ssize_t len; 5942 5943 close(fds[1]); 5944 5945 again: 5946 len = read(fds[0], &status, 1); 5947 if (len == -1 && (errno == EINTR)) 5948 goto again; 5949 5950 if (len != 1) 5951 exit(1); 5952 else if (status == 1) { 5953 fprintf(stderr, "Could not acquire pidfile\n"); 5954 exit(1); 5955 } else 5956 exit(0); 5957 } else if (pid < 0) 5958 exit(1); 5959 5960 setsid(); 5961 5962 pid = fork(); 5963 if (pid > 0) 5964 exit(0); 5965 else if (pid < 0) 5966 exit(1); 5967 5968 umask(027); 5969 5970 signal(SIGTSTP, SIG_IGN); 5971 signal(SIGTTOU, SIG_IGN); 5972 signal(SIGTTIN, SIG_IGN); 5973 } 5974 5975 if (pid_file && qemu_create_pidfile(pid_file) != 0) { 5976 if (daemonize) { 5977 uint8_t status = 1; 5978 write(fds[1], &status, 1); 5979 } else 5980 fprintf(stderr, "Could not acquire pid file\n"); 5981 exit(1); 5982 } 5983 #endif 5984 5985 #ifdef CONFIG_KQEMU 5986 if (smp_cpus > 1) 5987 kqemu_allowed = 0; 5988 #endif 5989 if (qemu_init_main_loop()) { 5990 fprintf(stderr, "qemu_init_main_loop failed\n"); 5991 exit(1); 5992 } 5993 linux_boot = (kernel_filename != NULL); 5994 net_boot = (boot_devices_bitmap >> ('n' - 'a')) & 0xF; 5995 5996 if (!linux_boot && *kernel_cmdline != '\0') { 5997 fprintf(stderr, "-append only allowed with -kernel option\n"); 5998 exit(1); 5999 } 6000 6001 if (!linux_boot && initrd_filename != NULL) { 6002 fprintf(stderr, "-initrd only allowed with -kernel option\n"); 6003 exit(1); 6004 } 6005 6006 /* boot to floppy or the default cd if no hard disk defined yet */ 6007 if (!boot_devices[0]) { 6008 boot_devices = "cad"; 6009 } 6010 setvbuf(stdout, NULL, _IOLBF, 0); 6011 6012 init_timers(); 6013 if (init_timer_alarm() < 0) { 6014 fprintf(stderr, "could not initialize alarm timer\n"); 6015 exit(1); 6016 } 6017 if (use_icount && icount_time_shift < 0) { 6018 use_icount = 2; 6019 /* 125MIPS seems a reasonable initial guess at the guest speed. 6020 It will be corrected fairly quickly anyway. */ 6021 icount_time_shift = 3; 6022 init_icount_adjust(); 6023 } 6024 6025 #ifdef _WIN32 6026 socket_init(); 6027 #endif 6028 6029 /* init network clients */ 6030 if (nb_net_clients == 0) { 6031 /* if no clients, we use a default config */ 6032 net_clients[nb_net_clients++] = "nic"; 6033 #ifdef CONFIG_SLIRP 6034 net_clients[nb_net_clients++] = "user"; 6035 #endif 6036 } 6037 6038 for(i = 0;i < nb_net_clients; i++) { 6039 if (net_client_parse(net_clients[i]) < 0) 6040 exit(1); 6041 } 6042 net_client_check(); 6043 6044 #ifdef TARGET_I386 6045 /* XXX: this should be moved in the PC machine instantiation code */ 6046 if (net_boot != 0) { 6047 int netroms = 0; 6048 for (i = 0; i < nb_nics && i < 4; i++) { 6049 const char *model = nd_table[i].model; 6050 char buf[1024]; 6051 char *filename; 6052 if (net_boot & (1 << i)) { 6053 if (model == NULL) 6054 model = "ne2k_pci"; 6055 snprintf(buf, sizeof(buf), "pxe-%s.bin", model); 6056 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, buf); 6057 if (filename && get_image_size(filename) > 0) { 6058 if (nb_option_roms >= MAX_OPTION_ROMS) { 6059 fprintf(stderr, "Too many option ROMs\n"); 6060 exit(1); 6061 } 6062 option_rom[nb_option_roms] = qemu_strdup(buf); 6063 nb_option_roms++; 6064 netroms++; 6065 } 6066 if (filename) { 6067 qemu_free(filename); 6068 } 6069 } 6070 } 6071 if (netroms == 0) { 6072 fprintf(stderr, "No valid PXE rom found for network device\n"); 6073 exit(1); 6074 } 6075 } 6076 #endif 6077 6078 /* init the bluetooth world */ 6079 for (i = 0; i < nb_bt_opts; i++) 6080 if (bt_parse(bt_opts[i])) 6081 exit(1); 6082 6083 /* init the memory */ 6084 if (ram_size == 0) 6085 ram_size = DEFAULT_RAM_SIZE * 1024 * 1024; 6086 6087 #ifdef CONFIG_KQEMU 6088 /* FIXME: This is a nasty hack because kqemu can't cope with dynamic 6089 guest ram allocation. It needs to go away. */ 6090 if (kqemu_allowed) { 6091 kqemu_phys_ram_size = ram_size + 8 * 1024 * 1024 + 4 * 1024 * 1024; 6092 kqemu_phys_ram_base = qemu_vmalloc(kqemu_phys_ram_size); 6093 if (!kqemu_phys_ram_base) { 6094 fprintf(stderr, "Could not allocate physical memory\n"); 6095 exit(1); 6096 } 6097 } 6098 #endif 6099 6100 /* init the dynamic translator */ 6101 cpu_exec_init_all(tb_size * 1024 * 1024); 6102 6103 bdrv_init(); 6104 6105 /* we always create the cdrom drive, even if no disk is there */ 6106 6107 if (nb_drives_opt < MAX_DRIVES) 6108 drive_add(NULL, CDROM_ALIAS); 6109 6110 /* we always create at least one floppy */ 6111 6112 if (nb_drives_opt < MAX_DRIVES) 6113 drive_add(NULL, FD_ALIAS, 0); 6114 6115 /* we always create one sd slot, even if no card is in it */ 6116 6117 if (nb_drives_opt < MAX_DRIVES) 6118 drive_add(NULL, SD_ALIAS); 6119 6120 /* open the virtual block devices */ 6121 6122 for(i = 0; i < nb_drives_opt; i++) 6123 if (drive_init(&drives_opt[i], snapshot, machine) == -1) 6124 exit(1); 6125 6126 register_savevm("timer", 0, 2, timer_save, timer_load, NULL); 6127 register_savevm_live("ram", 0, 3, ram_save_live, NULL, ram_load, NULL); 6128 6129 #ifndef _WIN32 6130 /* must be after terminal init, SDL library changes signal handlers */ 6131 sighandler_setup(); 6132 #endif 6133 6134 /* Maintain compatibility with multiple stdio monitors */ 6135 if (!strcmp(monitor_device,"stdio")) { 6136 for (i = 0; i < MAX_SERIAL_PORTS; i++) { 6137 const char *devname = serial_devices[i]; 6138 if (devname && !strcmp(devname,"mon:stdio")) { 6139 monitor_device = NULL; 6140 break; 6141 } else if (devname && !strcmp(devname,"stdio")) { 6142 monitor_device = NULL; 6143 serial_devices[i] = "mon:stdio"; 6144 break; 6145 } 6146 } 6147 } 6148 6149 if (nb_numa_nodes > 0) { 6150 int i; 6151 6152 if (nb_numa_nodes > smp_cpus) { 6153 nb_numa_nodes = smp_cpus; 6154 } 6155 6156 /* If no memory size if given for any node, assume the default case 6157 * and distribute the available memory equally across all nodes 6158 */ 6159 for (i = 0; i < nb_numa_nodes; i++) { 6160 if (node_mem[i] != 0) 6161 break; 6162 } 6163 if (i == nb_numa_nodes) { 6164 uint64_t usedmem = 0; 6165 6166 /* On Linux, the each node's border has to be 8MB aligned, 6167 * the final node gets the rest. 6168 */ 6169 for (i = 0; i < nb_numa_nodes - 1; i++) { 6170 node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1); 6171 usedmem += node_mem[i]; 6172 } 6173 node_mem[i] = ram_size - usedmem; 6174 } 6175 6176 for (i = 0; i < nb_numa_nodes; i++) { 6177 if (node_cpumask[i] != 0) 6178 break; 6179 } 6180 /* assigning the VCPUs round-robin is easier to implement, guest OSes 6181 * must cope with this anyway, because there are BIOSes out there in 6182 * real machines which also use this scheme. 6183 */ 6184 if (i == nb_numa_nodes) { 6185 for (i = 0; i < smp_cpus; i++) { 6186 node_cpumask[i % nb_numa_nodes] |= 1 << i; 6187 } 6188 } 6189 } 6190 6191 if (kvm_enabled()) { 6192 int ret; 6193 6194 ret = kvm_init(smp_cpus); 6195 if (ret < 0) { 6196 fprintf(stderr, "failed to initialize KVM\n"); 6197 exit(1); 6198 } 6199 } 6200 6201 if (monitor_device) { 6202 monitor_hd = qemu_chr_open("monitor", monitor_device, NULL); 6203 if (!monitor_hd) { 6204 fprintf(stderr, "qemu: could not open monitor device '%s'\n", monitor_device); 6205 exit(1); 6206 } 6207 } 6208 6209 for(i = 0; i < MAX_SERIAL_PORTS; i++) { 6210 const char *devname = serial_devices[i]; 6211 if (devname && strcmp(devname, "none")) { 6212 char label[32]; 6213 snprintf(label, sizeof(label), "serial%d", i); 6214 serial_hds[i] = qemu_chr_open(label, devname, NULL); 6215 if (!serial_hds[i]) { 6216 fprintf(stderr, "qemu: could not open serial device '%s'\n", 6217 devname); 6218 exit(1); 6219 } 6220 } 6221 } 6222 6223 for(i = 0; i < MAX_PARALLEL_PORTS; i++) { 6224 const char *devname = parallel_devices[i]; 6225 if (devname && strcmp(devname, "none")) { 6226 char label[32]; 6227 snprintf(label, sizeof(label), "parallel%d", i); 6228 parallel_hds[i] = qemu_chr_open(label, devname, NULL); 6229 if (!parallel_hds[i]) { 6230 fprintf(stderr, "qemu: could not open parallel device '%s'\n", 6231 devname); 6232 exit(1); 6233 } 6234 } 6235 } 6236 6237 for(i = 0; i < MAX_VIRTIO_CONSOLES; i++) { 6238 const char *devname = virtio_consoles[i]; 6239 if (devname && strcmp(devname, "none")) { 6240 char label[32]; 6241 snprintf(label, sizeof(label), "virtcon%d", i); 6242 virtcon_hds[i] = qemu_chr_open(label, devname, NULL); 6243 if (!virtcon_hds[i]) { 6244 fprintf(stderr, "qemu: could not open virtio console '%s'\n", 6245 devname); 6246 exit(1); 6247 } 6248 } 6249 } 6250 6251 module_call_init(MODULE_INIT_DEVICE); 6252 6253 6254 #ifdef CONFIG_TRACE 6255 if (trace_filename) { 6256 trace_init(trace_filename); 6257 #if 0 6258 // We don't need the dcache code until we can get load and store tracing 6259 // working again. 6260 dcache_init(dcache_size, dcache_ways, dcache_line_size, 6261 dcache_replace_policy, dcache_load_miss_penalty, 6262 dcache_store_miss_penalty); 6263 #endif 6264 fprintf(stderr, "-- When done tracing, exit the emulator. --\n"); 6265 } 6266 #endif 6267 6268 machine->init(ram_size, boot_devices, 6269 kernel_filename, kernel_cmdline, initrd_filename, cpu_model); 6270 6271 6272 for (env = first_cpu; env != NULL; env = env->next_cpu) { 6273 for (i = 0; i < nb_numa_nodes; i++) { 6274 if (node_cpumask[i] & (1 << env->cpu_index)) { 6275 env->numa_node = i; 6276 } 6277 } 6278 } 6279 6280 current_machine = machine; 6281 6282 /* Set KVM's vcpu state to qemu's initial CPUState. */ 6283 if (kvm_enabled()) { 6284 int ret; 6285 6286 ret = kvm_sync_vcpus(); 6287 if (ret < 0) { 6288 fprintf(stderr, "failed to initialize vcpus\n"); 6289 exit(1); 6290 } 6291 } 6292 6293 /* init USB devices */ 6294 if (usb_enabled) { 6295 for(i = 0; i < usb_devices_index; i++) { 6296 if (usb_device_add(usb_devices[i], 0) < 0) { 6297 fprintf(stderr, "Warning: could not add USB device %s\n", 6298 usb_devices[i]); 6299 } 6300 } 6301 } 6302 6303 if (!display_state) 6304 dumb_display_init(); 6305 /* just use the first displaystate for the moment */ 6306 ds = display_state; 6307 6308 if (display_type == DT_DEFAULT) { 6309 #if defined(CONFIG_SDL) || defined(CONFIG_COCOA) 6310 display_type = DT_SDL; 6311 #else 6312 display_type = DT_VNC; 6313 vnc_display = "localhost:0,to=99"; 6314 show_vnc_port = 1; 6315 #endif 6316 } 6317 6318 6319 switch (display_type) { 6320 case DT_NOGRAPHIC: 6321 break; 6322 #if defined(CONFIG_CURSES) 6323 case DT_CURSES: 6324 curses_display_init(ds, full_screen); 6325 break; 6326 #endif 6327 #if defined(CONFIG_SDL) 6328 case DT_SDL: 6329 sdl_display_init(ds, full_screen, no_frame); 6330 break; 6331 #elif defined(CONFIG_COCOA) 6332 case DT_SDL: 6333 cocoa_display_init(ds, full_screen); 6334 break; 6335 #endif 6336 case DT_VNC: 6337 vnc_display_init(ds); 6338 if (vnc_display_open(ds, vnc_display) < 0) 6339 exit(1); 6340 6341 if (show_vnc_port) { 6342 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds)); 6343 } 6344 break; 6345 default: 6346 break; 6347 } 6348 dpy_resize(ds); 6349 6350 dcl = ds->listeners; 6351 while (dcl != NULL) { 6352 if (dcl->dpy_refresh != NULL) { 6353 ds->gui_timer = qemu_new_timer(rt_clock, gui_update, ds); 6354 qemu_mod_timer(ds->gui_timer, qemu_get_clock(rt_clock)); 6355 } 6356 dcl = dcl->next; 6357 } 6358 6359 if (display_type == DT_NOGRAPHIC || display_type == DT_VNC) { 6360 nographic_timer = qemu_new_timer(rt_clock, nographic_update, NULL); 6361 qemu_mod_timer(nographic_timer, qemu_get_clock(rt_clock)); 6362 } 6363 6364 text_consoles_set_display(display_state); 6365 qemu_chr_initial_reset(); 6366 6367 if (monitor_device && monitor_hd) 6368 monitor_init(monitor_hd, MONITOR_USE_READLINE | MONITOR_IS_DEFAULT); 6369 6370 for(i = 0; i < MAX_SERIAL_PORTS; i++) { 6371 const char *devname = serial_devices[i]; 6372 if (devname && strcmp(devname, "none")) { 6373 if (strstart(devname, "vc", 0)) 6374 qemu_chr_printf(serial_hds[i], "serial%d console\r\n", i); 6375 } 6376 } 6377 6378 for(i = 0; i < MAX_PARALLEL_PORTS; i++) { 6379 const char *devname = parallel_devices[i]; 6380 if (devname && strcmp(devname, "none")) { 6381 if (strstart(devname, "vc", 0)) 6382 qemu_chr_printf(parallel_hds[i], "parallel%d console\r\n", i); 6383 } 6384 } 6385 6386 for(i = 0; i < MAX_VIRTIO_CONSOLES; i++) { 6387 const char *devname = virtio_consoles[i]; 6388 if (virtcon_hds[i] && devname) { 6389 if (strstart(devname, "vc", 0)) 6390 qemu_chr_printf(virtcon_hds[i], "virtio console%d\r\n", i); 6391 } 6392 } 6393 6394 if (gdbstub_dev && gdbserver_start(gdbstub_dev) < 0) { 6395 fprintf(stderr, "qemu: could not open gdbserver on device '%s'\n", 6396 gdbstub_dev); 6397 exit(1); 6398 } 6399 6400 if (loadvm) 6401 do_loadvm(cur_mon, loadvm); 6402 6403 /* call android-specific setup function */ 6404 android_emulation_setup(); 6405 6406 if (incoming) { 6407 autostart = 0; /* fixme how to deal with -daemonize */ 6408 qemu_start_incoming_migration(incoming); 6409 } 6410 6411 if (autostart) 6412 vm_start(); 6413 6414 #ifndef _WIN32 6415 if (daemonize) { 6416 uint8_t status = 0; 6417 ssize_t len; 6418 6419 again1: 6420 len = write(fds[1], &status, 1); 6421 if (len == -1 && (errno == EINTR)) 6422 goto again1; 6423 6424 if (len != 1) 6425 exit(1); 6426 6427 chdir("/"); 6428 TFR(fd = open("/dev/null", O_RDWR)); 6429 if (fd == -1) 6430 exit(1); 6431 } 6432 6433 if (run_as) { 6434 pwd = getpwnam(run_as); 6435 if (!pwd) { 6436 fprintf(stderr, "User \"%s\" doesn't exist\n", run_as); 6437 exit(1); 6438 } 6439 } 6440 6441 if (chroot_dir) { 6442 if (chroot(chroot_dir) < 0) { 6443 fprintf(stderr, "chroot failed\n"); 6444 exit(1); 6445 } 6446 chdir("/"); 6447 } 6448 6449 if (run_as) { 6450 if (setgid(pwd->pw_gid) < 0) { 6451 fprintf(stderr, "Failed to setgid(%d)\n", pwd->pw_gid); 6452 exit(1); 6453 } 6454 if (setuid(pwd->pw_uid) < 0) { 6455 fprintf(stderr, "Failed to setuid(%d)\n", pwd->pw_uid); 6456 exit(1); 6457 } 6458 if (setuid(0) != -1) { 6459 fprintf(stderr, "Dropping privileges failed\n"); 6460 exit(1); 6461 } 6462 } 6463 6464 if (daemonize) { 6465 dup2(fd, 0); 6466 dup2(fd, 1); 6467 dup2(fd, 2); 6468 6469 close(fd); 6470 } 6471 #endif 6472 6473 main_loop(); 6474 quit_timers(); 6475 net_cleanup(); 6476 android_emulation_teardown(); 6477 return 0; 6478 } 6479
