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Rename os_setup_signal_handling() to os_setup_early_signal_handling()
[qemu.git] / vl.c
1 /*
2 * QEMU System Emulator
3 *
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24 #include <unistd.h>
25 #include <fcntl.h>
26 #include <signal.h>
27 #include <time.h>
28 #include <errno.h>
29 #include <sys/time.h>
30 #include <zlib.h>
31
32 /* Needed early for CONFIG_BSD etc. */
33 #include "config-host.h"
34
35 #ifndef _WIN32
36 #include <libgen.h>
37 #include <pwd.h>
38 #include <sys/times.h>
39 #include <sys/wait.h>
40 #include <termios.h>
41 #include <sys/mman.h>
42 #include <sys/ioctl.h>
43 #include <sys/resource.h>
44 #include <sys/socket.h>
45 #include <netinet/in.h>
46 #include <net/if.h>
47 #include <arpa/inet.h>
48 #include <dirent.h>
49 #include <netdb.h>
50 #include <sys/select.h>
51 #ifdef CONFIG_BSD
52 #include <sys/stat.h>
53 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
54 #include <libutil.h>
55 #include <sys/sysctl.h>
56 #else
57 #include <util.h>
58 #endif
59 #else
60 #ifdef __linux__
61 #include <pty.h>
62 #include <malloc.h>
63 #include <sys/prctl.h>
64
65 #include <linux/ppdev.h>
66 #include <linux/parport.h>
67 #endif
68 #ifdef __sun__
69 #include <sys/stat.h>
70 #include <sys/ethernet.h>
71 #include <sys/sockio.h>
72 #include <netinet/arp.h>
73 #include <netinet/in_systm.h>
74 #include <netinet/ip.h>
75 #include <netinet/ip_icmp.h> // must come after ip.h
76 #include <netinet/udp.h>
77 #include <netinet/tcp.h>
78 #include <net/if.h>
79 #include <syslog.h>
80 #include <stropts.h>
81 /* See MySQL bug #7156 (http://bugs.mysql.com/bug.php?id=7156) for
82 discussion about Solaris header problems */
83 extern int madvise(caddr_t, size_t, int);
84 #endif
85 #endif
86 #endif
87
88 #if defined(__OpenBSD__)
89 #include <util.h>
90 #endif
91
92 #if defined(CONFIG_VDE)
93 #include <libvdeplug.h>
94 #endif
95
96 #ifdef _WIN32
97 #include <windows.h>
98 #endif
99
100 #ifdef CONFIG_SDL
101 #if defined(__APPLE__) || defined(main)
102 #include <SDL.h>
103 int qemu_main(int argc, char **argv, char **envp);
104 int main(int argc, char **argv)
105 {
106 return qemu_main(argc, argv, NULL);
107 }
108 #undef main
109 #define main qemu_main
110 #endif
111 #endif /* CONFIG_SDL */
112
113 #ifdef CONFIG_COCOA
114 #undef main
115 #define main qemu_main
116 #endif /* CONFIG_COCOA */
117
118 #include "hw/hw.h"
119 #include "hw/boards.h"
120 #include "hw/usb.h"
121 #include "hw/pcmcia.h"
122 #include "hw/pc.h"
123 #include "hw/isa.h"
124 #include "hw/baum.h"
125 #include "hw/bt.h"
126 #include "hw/watchdog.h"
127 #include "hw/smbios.h"
128 #include "hw/xen.h"
129 #include "hw/qdev.h"
130 #include "hw/loader.h"
131 #include "bt-host.h"
132 #include "net.h"
133 #include "net/slirp.h"
134 #include "monitor.h"
135 #include "console.h"
136 #include "sysemu.h"
137 #include "gdbstub.h"
138 #include "qemu-timer.h"
139 #include "qemu-char.h"
140 #include "cache-utils.h"
141 #include "block.h"
142 #include "block_int.h"
143 #include "block-migration.h"
144 #include "dma.h"
145 #include "audio/audio.h"
146 #include "migration.h"
147 #include "kvm.h"
148 #include "qemu-option.h"
149 #include "qemu-config.h"
150 #include "qemu-objects.h"
151 #ifdef CONFIG_LINUX
152 #include "fsdev/qemu-fsdev.h"
153 #endif
154
155 #include "disas.h"
156
157 #include "qemu_socket.h"
158
159 #include "slirp/libslirp.h"
160
161 #include "qemu-queue.h"
162 #include "cpus.h"
163 #include "arch_init.h"
164
165 //#define DEBUG_NET
166 //#define DEBUG_SLIRP
167
168 #define DEFAULT_RAM_SIZE 128
169
170 #define MAX_VIRTIO_CONSOLES 1
171
172 static const char *data_dir;
173 const char *bios_name = NULL;
174 /* Note: drives_table[MAX_DRIVES] is a dummy block driver if none available
175 to store the VM snapshots */
176 struct drivelist drives = QTAILQ_HEAD_INITIALIZER(drives);
177 struct driveoptlist driveopts = QTAILQ_HEAD_INITIALIZER(driveopts);
178 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
179 DisplayType display_type = DT_DEFAULT;
180 const char* keyboard_layout = NULL;
181 ram_addr_t ram_size;
182 const char *mem_path = NULL;
183 #ifdef MAP_POPULATE
184 int mem_prealloc = 0; /* force preallocation of physical target memory */
185 #endif
186 int nb_nics;
187 NICInfo nd_table[MAX_NICS];
188 int vm_running;
189 int autostart;
190 static int rtc_utc = 1;
191 static int rtc_date_offset = -1; /* -1 means no change */
192 QEMUClock *rtc_clock;
193 int vga_interface_type = VGA_NONE;
194 static int full_screen = 0;
195 #ifdef CONFIG_SDL
196 static int no_frame = 0;
197 #endif
198 int no_quit = 0;
199 CharDriverState *serial_hds[MAX_SERIAL_PORTS];
200 CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
201 CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES];
202 int win2k_install_hack = 0;
203 int rtc_td_hack = 0;
204 int usb_enabled = 0;
205 int singlestep = 0;
206 int smp_cpus = 1;
207 int max_cpus = 0;
208 int smp_cores = 1;
209 int smp_threads = 1;
210 const char *vnc_display;
211 int acpi_enabled = 1;
212 int no_hpet = 0;
213 int fd_bootchk = 1;
214 int no_reboot = 0;
215 int no_shutdown = 0;
216 int cursor_hide = 1;
217 int graphic_rotate = 0;
218 uint8_t irq0override = 1;
219 #ifndef _WIN32
220 int daemonize = 0;
221 #endif
222 const char *watchdog;
223 const char *option_rom[MAX_OPTION_ROMS];
224 int nb_option_roms;
225 int semihosting_enabled = 0;
226 int old_param = 0;
227 const char *qemu_name;
228 int alt_grab = 0;
229 int ctrl_grab = 0;
230 unsigned int nb_prom_envs = 0;
231 const char *prom_envs[MAX_PROM_ENVS];
232 int boot_menu;
233
234 int nb_numa_nodes;
235 uint64_t node_mem[MAX_NODES];
236 uint64_t node_cpumask[MAX_NODES];
237
238 static QEMUTimer *nographic_timer;
239
240 uint8_t qemu_uuid[16];
241
242 static QEMUBootSetHandler *boot_set_handler;
243 static void *boot_set_opaque;
244
245 int kvm_allowed = 0;
246 uint32_t xen_domid;
247 enum xen_mode xen_mode = XEN_EMULATE;
248
249 static int default_serial = 1;
250 static int default_parallel = 1;
251 static int default_virtcon = 1;
252 static int default_monitor = 1;
253 static int default_vga = 1;
254 static int default_floppy = 1;
255 static int default_cdrom = 1;
256 static int default_sdcard = 1;
257
258 static struct {
259 const char *driver;
260 int *flag;
261 } default_list[] = {
262 { .driver = "isa-serial", .flag = &default_serial },
263 { .driver = "isa-parallel", .flag = &default_parallel },
264 { .driver = "isa-fdc", .flag = &default_floppy },
265 { .driver = "ide-drive", .flag = &default_cdrom },
266 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
267 { .driver = "virtio-serial-s390", .flag = &default_virtcon },
268 { .driver = "virtio-serial", .flag = &default_virtcon },
269 { .driver = "VGA", .flag = &default_vga },
270 { .driver = "cirrus-vga", .flag = &default_vga },
271 { .driver = "vmware-svga", .flag = &default_vga },
272 };
273
274 static int default_driver_check(QemuOpts *opts, void *opaque)
275 {
276 const char *driver = qemu_opt_get(opts, "driver");
277 int i;
278
279 if (!driver)
280 return 0;
281 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
282 if (strcmp(default_list[i].driver, driver) != 0)
283 continue;
284 *(default_list[i].flag) = 0;
285 }
286 return 0;
287 }
288
289 /***********************************************************/
290
291 static void set_proc_name(const char *s)
292 {
293 #if defined(__linux__) && defined(PR_SET_NAME)
294 char name[16];
295 if (!s)
296 return;
297 name[sizeof(name) - 1] = 0;
298 strncpy(name, s, sizeof(name));
299 /* Could rewrite argv[0] too, but that's a bit more complicated.
300 This simple way is enough for `top'. */
301 prctl(PR_SET_NAME, name);
302 #endif
303 }
304
305 /***********************************************************/
306 /* real time host monotonic timer */
307
308 /* compute with 96 bit intermediate result: (a*b)/c */
309 uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
310 {
311 union {
312 uint64_t ll;
313 struct {
314 #ifdef HOST_WORDS_BIGENDIAN
315 uint32_t high, low;
316 #else
317 uint32_t low, high;
318 #endif
319 } l;
320 } u, res;
321 uint64_t rl, rh;
322
323 u.ll = a;
324 rl = (uint64_t)u.l.low * (uint64_t)b;
325 rh = (uint64_t)u.l.high * (uint64_t)b;
326 rh += (rl >> 32);
327 res.l.high = rh / c;
328 res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
329 return res.ll;
330 }
331
332 /***********************************************************/
333 /* host time/date access */
334 void qemu_get_timedate(struct tm *tm, int offset)
335 {
336 time_t ti;
337 struct tm *ret;
338
339 time(&ti);
340 ti += offset;
341 if (rtc_date_offset == -1) {
342 if (rtc_utc)
343 ret = gmtime(&ti);
344 else
345 ret = localtime(&ti);
346 } else {
347 ti -= rtc_date_offset;
348 ret = gmtime(&ti);
349 }
350
351 memcpy(tm, ret, sizeof(struct tm));
352 }
353
354 int qemu_timedate_diff(struct tm *tm)
355 {
356 time_t seconds;
357
358 if (rtc_date_offset == -1)
359 if (rtc_utc)
360 seconds = mktimegm(tm);
361 else
362 seconds = mktime(tm);
363 else
364 seconds = mktimegm(tm) + rtc_date_offset;
365
366 return seconds - time(NULL);
367 }
368
369 void rtc_change_mon_event(struct tm *tm)
370 {
371 QObject *data;
372
373 data = qobject_from_jsonf("{ 'offset': %d }", qemu_timedate_diff(tm));
374 monitor_protocol_event(QEVENT_RTC_CHANGE, data);
375 qobject_decref(data);
376 }
377
378 static void configure_rtc_date_offset(const char *startdate, int legacy)
379 {
380 time_t rtc_start_date;
381 struct tm tm;
382
383 if (!strcmp(startdate, "now") && legacy) {
384 rtc_date_offset = -1;
385 } else {
386 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
387 &tm.tm_year,
388 &tm.tm_mon,
389 &tm.tm_mday,
390 &tm.tm_hour,
391 &tm.tm_min,
392 &tm.tm_sec) == 6) {
393 /* OK */
394 } else if (sscanf(startdate, "%d-%d-%d",
395 &tm.tm_year,
396 &tm.tm_mon,
397 &tm.tm_mday) == 3) {
398 tm.tm_hour = 0;
399 tm.tm_min = 0;
400 tm.tm_sec = 0;
401 } else {
402 goto date_fail;
403 }
404 tm.tm_year -= 1900;
405 tm.tm_mon--;
406 rtc_start_date = mktimegm(&tm);
407 if (rtc_start_date == -1) {
408 date_fail:
409 fprintf(stderr, "Invalid date format. Valid formats are:\n"
410 "'2006-06-17T16:01:21' or '2006-06-17'\n");
411 exit(1);
412 }
413 rtc_date_offset = time(NULL) - rtc_start_date;
414 }
415 }
416
417 static void configure_rtc(QemuOpts *opts)
418 {
419 const char *value;
420
421 value = qemu_opt_get(opts, "base");
422 if (value) {
423 if (!strcmp(value, "utc")) {
424 rtc_utc = 1;
425 } else if (!strcmp(value, "localtime")) {
426 rtc_utc = 0;
427 } else {
428 configure_rtc_date_offset(value, 0);
429 }
430 }
431 value = qemu_opt_get(opts, "clock");
432 if (value) {
433 if (!strcmp(value, "host")) {
434 rtc_clock = host_clock;
435 } else if (!strcmp(value, "vm")) {
436 rtc_clock = vm_clock;
437 } else {
438 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
439 exit(1);
440 }
441 }
442 value = qemu_opt_get(opts, "driftfix");
443 if (value) {
444 if (!strcmp(value, "slew")) {
445 rtc_td_hack = 1;
446 } else if (!strcmp(value, "none")) {
447 rtc_td_hack = 0;
448 } else {
449 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
450 exit(1);
451 }
452 }
453 }
454
455 /***********************************************************/
456 /* Bluetooth support */
457 static int nb_hcis;
458 static int cur_hci;
459 static struct HCIInfo *hci_table[MAX_NICS];
460
461 static struct bt_vlan_s {
462 struct bt_scatternet_s net;
463 int id;
464 struct bt_vlan_s *next;
465 } *first_bt_vlan;
466
467 /* find or alloc a new bluetooth "VLAN" */
468 static struct bt_scatternet_s *qemu_find_bt_vlan(int id)
469 {
470 struct bt_vlan_s **pvlan, *vlan;
471 for (vlan = first_bt_vlan; vlan != NULL; vlan = vlan->next) {
472 if (vlan->id == id)
473 return &vlan->net;
474 }
475 vlan = qemu_mallocz(sizeof(struct bt_vlan_s));
476 vlan->id = id;
477 pvlan = &first_bt_vlan;
478 while (*pvlan != NULL)
479 pvlan = &(*pvlan)->next;
480 *pvlan = vlan;
481 return &vlan->net;
482 }
483
484 static void null_hci_send(struct HCIInfo *hci, const uint8_t *data, int len)
485 {
486 }
487
488 static int null_hci_addr_set(struct HCIInfo *hci, const uint8_t *bd_addr)
489 {
490 return -ENOTSUP;
491 }
492
493 static struct HCIInfo null_hci = {
494 .cmd_send = null_hci_send,
495 .sco_send = null_hci_send,
496 .acl_send = null_hci_send,
497 .bdaddr_set = null_hci_addr_set,
498 };
499
500 struct HCIInfo *qemu_next_hci(void)
501 {
502 if (cur_hci == nb_hcis)
503 return &null_hci;
504
505 return hci_table[cur_hci++];
506 }
507
508 static struct HCIInfo *hci_init(const char *str)
509 {
510 char *endp;
511 struct bt_scatternet_s *vlan = 0;
512
513 if (!strcmp(str, "null"))
514 /* null */
515 return &null_hci;
516 else if (!strncmp(str, "host", 4) && (str[4] == '\0' || str[4] == ':'))
517 /* host[:hciN] */
518 return bt_host_hci(str[4] ? str + 5 : "hci0");
519 else if (!strncmp(str, "hci", 3)) {
520 /* hci[,vlan=n] */
521 if (str[3]) {
522 if (!strncmp(str + 3, ",vlan=", 6)) {
523 vlan = qemu_find_bt_vlan(strtol(str + 9, &endp, 0));
524 if (*endp)
525 vlan = 0;
526 }
527 } else
528 vlan = qemu_find_bt_vlan(0);
529 if (vlan)
530 return bt_new_hci(vlan);
531 }
532
533 fprintf(stderr, "qemu: Unknown bluetooth HCI `%s'.\n", str);
534
535 return 0;
536 }
537
538 static int bt_hci_parse(const char *str)
539 {
540 struct HCIInfo *hci;
541 bdaddr_t bdaddr;
542
543 if (nb_hcis >= MAX_NICS) {
544 fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
545 return -1;
546 }
547
548 hci = hci_init(str);
549 if (!hci)
550 return -1;
551
552 bdaddr.b[0] = 0x52;
553 bdaddr.b[1] = 0x54;
554 bdaddr.b[2] = 0x00;
555 bdaddr.b[3] = 0x12;
556 bdaddr.b[4] = 0x34;
557 bdaddr.b[5] = 0x56 + nb_hcis;
558 hci->bdaddr_set(hci, bdaddr.b);
559
560 hci_table[nb_hcis++] = hci;
561
562 return 0;
563 }
564
565 static void bt_vhci_add(int vlan_id)
566 {
567 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
568
569 if (!vlan->slave)
570 fprintf(stderr, "qemu: warning: adding a VHCI to "
571 "an empty scatternet %i\n", vlan_id);
572
573 bt_vhci_init(bt_new_hci(vlan));
574 }
575
576 static struct bt_device_s *bt_device_add(const char *opt)
577 {
578 struct bt_scatternet_s *vlan;
579 int vlan_id = 0;
580 char *endp = strstr(opt, ",vlan=");
581 int len = (endp ? endp - opt : strlen(opt)) + 1;
582 char devname[10];
583
584 pstrcpy(devname, MIN(sizeof(devname), len), opt);
585
586 if (endp) {
587 vlan_id = strtol(endp + 6, &endp, 0);
588 if (*endp) {
589 fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
590 return 0;
591 }
592 }
593
594 vlan = qemu_find_bt_vlan(vlan_id);
595
596 if (!vlan->slave)
597 fprintf(stderr, "qemu: warning: adding a slave device to "
598 "an empty scatternet %i\n", vlan_id);
599
600 if (!strcmp(devname, "keyboard"))
601 return bt_keyboard_init(vlan);
602
603 fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
604 return 0;
605 }
606
607 static int bt_parse(const char *opt)
608 {
609 const char *endp, *p;
610 int vlan;
611
612 if (strstart(opt, "hci", &endp)) {
613 if (!*endp || *endp == ',') {
614 if (*endp)
615 if (!strstart(endp, ",vlan=", 0))
616 opt = endp + 1;
617
618 return bt_hci_parse(opt);
619 }
620 } else if (strstart(opt, "vhci", &endp)) {
621 if (!*endp || *endp == ',') {
622 if (*endp) {
623 if (strstart(endp, ",vlan=", &p)) {
624 vlan = strtol(p, (char **) &endp, 0);
625 if (*endp) {
626 fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
627 return 1;
628 }
629 } else {
630 fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1);
631 return 1;
632 }
633 } else
634 vlan = 0;
635
636 bt_vhci_add(vlan);
637 return 0;
638 }
639 } else if (strstart(opt, "device:", &endp))
640 return !bt_device_add(endp);
641
642 fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
643 return 1;
644 }
645
646 /***********************************************************/
647 /* QEMU Block devices */
648
649 #define HD_ALIAS "index=%d,media=disk"
650 #define CDROM_ALIAS "index=2,media=cdrom"
651 #define FD_ALIAS "index=%d,if=floppy"
652 #define PFLASH_ALIAS "if=pflash"
653 #define MTD_ALIAS "if=mtd"
654 #define SD_ALIAS "index=0,if=sd"
655
656 QemuOpts *drive_add(const char *file, const char *fmt, ...)
657 {
658 va_list ap;
659 char optstr[1024];
660 QemuOpts *opts;
661
662 va_start(ap, fmt);
663 vsnprintf(optstr, sizeof(optstr), fmt, ap);
664 va_end(ap);
665
666 opts = qemu_opts_parse(&qemu_drive_opts, optstr, 0);
667 if (!opts) {
668 return NULL;
669 }
670 if (file)
671 qemu_opt_set(opts, "file", file);
672 return opts;
673 }
674
675 DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit)
676 {
677 DriveInfo *dinfo;
678
679 /* seek interface, bus and unit */
680
681 QTAILQ_FOREACH(dinfo, &drives, next) {
682 if (dinfo->type == type &&
683 dinfo->bus == bus &&
684 dinfo->unit == unit)
685 return dinfo;
686 }
687
688 return NULL;
689 }
690
691 DriveInfo *drive_get_by_id(const char *id)
692 {
693 DriveInfo *dinfo;
694
695 QTAILQ_FOREACH(dinfo, &drives, next) {
696 if (strcmp(id, dinfo->id))
697 continue;
698 return dinfo;
699 }
700 return NULL;
701 }
702
703 int drive_get_max_bus(BlockInterfaceType type)
704 {
705 int max_bus;
706 DriveInfo *dinfo;
707
708 max_bus = -1;
709 QTAILQ_FOREACH(dinfo, &drives, next) {
710 if(dinfo->type == type &&
711 dinfo->bus > max_bus)
712 max_bus = dinfo->bus;
713 }
714 return max_bus;
715 }
716
717 const char *drive_get_serial(BlockDriverState *bdrv)
718 {
719 DriveInfo *dinfo;
720
721 QTAILQ_FOREACH(dinfo, &drives, next) {
722 if (dinfo->bdrv == bdrv)
723 return dinfo->serial;
724 }
725
726 return "\0";
727 }
728
729 BlockInterfaceErrorAction drive_get_on_error(
730 BlockDriverState *bdrv, int is_read)
731 {
732 DriveInfo *dinfo;
733
734 QTAILQ_FOREACH(dinfo, &drives, next) {
735 if (dinfo->bdrv == bdrv)
736 return is_read ? dinfo->on_read_error : dinfo->on_write_error;
737 }
738
739 return is_read ? BLOCK_ERR_REPORT : BLOCK_ERR_STOP_ENOSPC;
740 }
741
742 static void bdrv_format_print(void *opaque, const char *name)
743 {
744 fprintf(stderr, " %s", name);
745 }
746
747 void drive_uninit(DriveInfo *dinfo)
748 {
749 qemu_opts_del(dinfo->opts);
750 bdrv_delete(dinfo->bdrv);
751 QTAILQ_REMOVE(&drives, dinfo, next);
752 qemu_free(dinfo);
753 }
754
755 static int parse_block_error_action(const char *buf, int is_read)
756 {
757 if (!strcmp(buf, "ignore")) {
758 return BLOCK_ERR_IGNORE;
759 } else if (!is_read && !strcmp(buf, "enospc")) {
760 return BLOCK_ERR_STOP_ENOSPC;
761 } else if (!strcmp(buf, "stop")) {
762 return BLOCK_ERR_STOP_ANY;
763 } else if (!strcmp(buf, "report")) {
764 return BLOCK_ERR_REPORT;
765 } else {
766 fprintf(stderr, "qemu: '%s' invalid %s error action\n",
767 buf, is_read ? "read" : "write");
768 return -1;
769 }
770 }
771
772 DriveInfo *drive_init(QemuOpts *opts, void *opaque,
773 int *fatal_error)
774 {
775 const char *buf;
776 const char *file = NULL;
777 char devname[128];
778 const char *serial;
779 const char *mediastr = "";
780 BlockInterfaceType type;
781 enum { MEDIA_DISK, MEDIA_CDROM } media;
782 int bus_id, unit_id;
783 int cyls, heads, secs, translation;
784 BlockDriver *drv = NULL;
785 QEMUMachine *machine = opaque;
786 int max_devs;
787 int index;
788 int ro = 0;
789 int bdrv_flags = 0;
790 int on_read_error, on_write_error;
791 const char *devaddr;
792 DriveInfo *dinfo;
793 int snapshot = 0;
794
795 *fatal_error = 1;
796
797 translation = BIOS_ATA_TRANSLATION_AUTO;
798
799 if (machine && machine->use_scsi) {
800 type = IF_SCSI;
801 max_devs = MAX_SCSI_DEVS;
802 pstrcpy(devname, sizeof(devname), "scsi");
803 } else {
804 type = IF_IDE;
805 max_devs = MAX_IDE_DEVS;
806 pstrcpy(devname, sizeof(devname), "ide");
807 }
808 media = MEDIA_DISK;
809
810 /* extract parameters */
811 bus_id = qemu_opt_get_number(opts, "bus", 0);
812 unit_id = qemu_opt_get_number(opts, "unit", -1);
813 index = qemu_opt_get_number(opts, "index", -1);
814
815 cyls = qemu_opt_get_number(opts, "cyls", 0);
816 heads = qemu_opt_get_number(opts, "heads", 0);
817 secs = qemu_opt_get_number(opts, "secs", 0);
818
819 snapshot = qemu_opt_get_bool(opts, "snapshot", 0);
820 ro = qemu_opt_get_bool(opts, "readonly", 0);
821
822 file = qemu_opt_get(opts, "file");
823 serial = qemu_opt_get(opts, "serial");
824
825 if ((buf = qemu_opt_get(opts, "if")) != NULL) {
826 pstrcpy(devname, sizeof(devname), buf);
827 if (!strcmp(buf, "ide")) {
828 type = IF_IDE;
829 max_devs = MAX_IDE_DEVS;
830 } else if (!strcmp(buf, "scsi")) {
831 type = IF_SCSI;
832 max_devs = MAX_SCSI_DEVS;
833 } else if (!strcmp(buf, "floppy")) {
834 type = IF_FLOPPY;
835 max_devs = 0;
836 } else if (!strcmp(buf, "pflash")) {
837 type = IF_PFLASH;
838 max_devs = 0;
839 } else if (!strcmp(buf, "mtd")) {
840 type = IF_MTD;
841 max_devs = 0;
842 } else if (!strcmp(buf, "sd")) {
843 type = IF_SD;
844 max_devs = 0;
845 } else if (!strcmp(buf, "virtio")) {
846 type = IF_VIRTIO;
847 max_devs = 0;
848 } else if (!strcmp(buf, "xen")) {
849 type = IF_XEN;
850 max_devs = 0;
851 } else if (!strcmp(buf, "none")) {
852 type = IF_NONE;
853 max_devs = 0;
854 } else {
855 fprintf(stderr, "qemu: unsupported bus type '%s'\n", buf);
856 return NULL;
857 }
858 }
859
860 if (cyls || heads || secs) {
861 if (cyls < 1 || (type == IF_IDE && cyls > 16383)) {
862 fprintf(stderr, "qemu: '%s' invalid physical cyls number\n", buf);
863 return NULL;
864 }
865 if (heads < 1 || (type == IF_IDE && heads > 16)) {
866 fprintf(stderr, "qemu: '%s' invalid physical heads number\n", buf);
867 return NULL;
868 }
869 if (secs < 1 || (type == IF_IDE && secs > 63)) {
870 fprintf(stderr, "qemu: '%s' invalid physical secs number\n", buf);
871 return NULL;
872 }
873 }
874
875 if ((buf = qemu_opt_get(opts, "trans")) != NULL) {
876 if (!cyls) {
877 fprintf(stderr,
878 "qemu: '%s' trans must be used with cyls,heads and secs\n",
879 buf);
880 return NULL;
881 }
882 if (!strcmp(buf, "none"))
883 translation = BIOS_ATA_TRANSLATION_NONE;
884 else if (!strcmp(buf, "lba"))
885 translation = BIOS_ATA_TRANSLATION_LBA;
886 else if (!strcmp(buf, "auto"))
887 translation = BIOS_ATA_TRANSLATION_AUTO;
888 else {
889 fprintf(stderr, "qemu: '%s' invalid translation type\n", buf);
890 return NULL;
891 }
892 }
893
894 if ((buf = qemu_opt_get(opts, "media")) != NULL) {
895 if (!strcmp(buf, "disk")) {
896 media = MEDIA_DISK;
897 } else if (!strcmp(buf, "cdrom")) {
898 if (cyls || secs || heads) {
899 fprintf(stderr,
900 "qemu: '%s' invalid physical CHS format\n", buf);
901 return NULL;
902 }
903 media = MEDIA_CDROM;
904 } else {
905 fprintf(stderr, "qemu: '%s' invalid media\n", buf);
906 return NULL;
907 }
908 }
909
910 if ((buf = qemu_opt_get(opts, "cache")) != NULL) {
911 if (!strcmp(buf, "off") || !strcmp(buf, "none")) {
912 bdrv_flags |= BDRV_O_NOCACHE;
913 } else if (!strcmp(buf, "writeback")) {
914 bdrv_flags |= BDRV_O_CACHE_WB;
915 } else if (!strcmp(buf, "unsafe")) {
916 bdrv_flags |= BDRV_O_CACHE_WB;
917 bdrv_flags |= BDRV_O_NO_FLUSH;
918 } else if (!strcmp(buf, "writethrough")) {
919 /* this is the default */
920 } else {
921 fprintf(stderr, "qemu: invalid cache option\n");
922 return NULL;
923 }
924 }
925
926 #ifdef CONFIG_LINUX_AIO
927 if ((buf = qemu_opt_get(opts, "aio")) != NULL) {
928 if (!strcmp(buf, "native")) {
929 bdrv_flags |= BDRV_O_NATIVE_AIO;
930 } else if (!strcmp(buf, "threads")) {
931 /* this is the default */
932 } else {
933 fprintf(stderr, "qemu: invalid aio option\n");
934 return NULL;
935 }
936 }
937 #endif
938
939 if ((buf = qemu_opt_get(opts, "format")) != NULL) {
940 if (strcmp(buf, "?") == 0) {
941 fprintf(stderr, "qemu: Supported formats:");
942 bdrv_iterate_format(bdrv_format_print, NULL);
943 fprintf(stderr, "\n");
944 return NULL;
945 }
946 drv = bdrv_find_whitelisted_format(buf);
947 if (!drv) {
948 fprintf(stderr, "qemu: '%s' invalid format\n", buf);
949 return NULL;
950 }
951 }
952
953 on_write_error = BLOCK_ERR_STOP_ENOSPC;
954 if ((buf = qemu_opt_get(opts, "werror")) != NULL) {
955 if (type != IF_IDE && type != IF_SCSI && type != IF_VIRTIO && type != IF_NONE) {
956 fprintf(stderr, "werror is no supported by this format\n");
957 return NULL;
958 }
959
960 on_write_error = parse_block_error_action(buf, 0);
961 if (on_write_error < 0) {
962 return NULL;
963 }
964 }
965
966 on_read_error = BLOCK_ERR_REPORT;
967 if ((buf = qemu_opt_get(opts, "rerror")) != NULL) {
968 if (type != IF_IDE && type != IF_VIRTIO && type != IF_NONE) {
969 fprintf(stderr, "rerror is no supported by this format\n");
970 return NULL;
971 }
972
973 on_read_error = parse_block_error_action(buf, 1);
974 if (on_read_error < 0) {
975 return NULL;
976 }
977 }
978
979 if ((devaddr = qemu_opt_get(opts, "addr")) != NULL) {
980 if (type != IF_VIRTIO) {
981 fprintf(stderr, "addr is not supported\n");
982 return NULL;
983 }
984 }
985
986 /* compute bus and unit according index */
987
988 if (index != -1) {
989 if (bus_id != 0 || unit_id != -1) {
990 fprintf(stderr,
991 "qemu: index cannot be used with bus and unit\n");
992 return NULL;
993 }
994 if (max_devs == 0)
995 {
996 unit_id = index;
997 bus_id = 0;
998 } else {
999 unit_id = index % max_devs;
1000 bus_id = index / max_devs;
1001 }
1002 }
1003
1004 /* if user doesn't specify a unit_id,
1005 * try to find the first free
1006 */
1007
1008 if (unit_id == -1) {
1009 unit_id = 0;
1010 while (drive_get(type, bus_id, unit_id) != NULL) {
1011 unit_id++;
1012 if (max_devs && unit_id >= max_devs) {
1013 unit_id -= max_devs;
1014 bus_id++;
1015 }
1016 }
1017 }
1018
1019 /* check unit id */
1020
1021 if (max_devs && unit_id >= max_devs) {
1022 fprintf(stderr, "qemu: unit %d too big (max is %d)\n",
1023 unit_id, max_devs - 1);
1024 return NULL;
1025 }
1026
1027 /*
1028 * ignore multiple definitions
1029 */
1030
1031 if (drive_get(type, bus_id, unit_id) != NULL) {
1032 *fatal_error = 0;
1033 return NULL;
1034 }
1035
1036 /* init */
1037
1038 dinfo = qemu_mallocz(sizeof(*dinfo));
1039 if ((buf = qemu_opts_id(opts)) != NULL) {
1040 dinfo->id = qemu_strdup(buf);
1041 } else {
1042 /* no id supplied -> create one */
1043 dinfo->id = qemu_mallocz(32);
1044 if (type == IF_IDE || type == IF_SCSI)
1045 mediastr = (media == MEDIA_CDROM) ? "-cd" : "-hd";
1046 if (max_devs)
1047 snprintf(dinfo->id, 32, "%s%i%s%i",
1048 devname, bus_id, mediastr, unit_id);
1049 else
1050 snprintf(dinfo->id, 32, "%s%s%i",
1051 devname, mediastr, unit_id);
1052 }
1053 dinfo->bdrv = bdrv_new(dinfo->id);
1054 dinfo->devaddr = devaddr;
1055 dinfo->type = type;
1056 dinfo->bus = bus_id;
1057 dinfo->unit = unit_id;
1058 dinfo->on_read_error = on_read_error;
1059 dinfo->on_write_error = on_write_error;
1060 dinfo->opts = opts;
1061 if (serial)
1062 strncpy(dinfo->serial, serial, sizeof(serial));
1063 QTAILQ_INSERT_TAIL(&drives, dinfo, next);
1064
1065 switch(type) {
1066 case IF_IDE:
1067 case IF_SCSI:
1068 case IF_XEN:
1069 case IF_NONE:
1070 switch(media) {
1071 case MEDIA_DISK:
1072 if (cyls != 0) {
1073 bdrv_set_geometry_hint(dinfo->bdrv, cyls, heads, secs);
1074 bdrv_set_translation_hint(dinfo->bdrv, translation);
1075 }
1076 break;
1077 case MEDIA_CDROM:
1078 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_CDROM);
1079 break;
1080 }
1081 break;
1082 case IF_SD:
1083 /* FIXME: This isn't really a floppy, but it's a reasonable
1084 approximation. */
1085 case IF_FLOPPY:
1086 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_FLOPPY);
1087 break;
1088 case IF_PFLASH:
1089 case IF_MTD:
1090 break;
1091 case IF_VIRTIO:
1092 /* add virtio block device */
1093 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
1094 qemu_opt_set(opts, "driver", "virtio-blk-pci");
1095 qemu_opt_set(opts, "drive", dinfo->id);
1096 if (devaddr)
1097 qemu_opt_set(opts, "addr", devaddr);
1098 break;
1099 case IF_COUNT:
1100 abort();
1101 }
1102 if (!file) {
1103 *fatal_error = 0;
1104 return NULL;
1105 }
1106 if (snapshot) {
1107 /* always use cache=unsafe with snapshot */
1108 bdrv_flags &= ~BDRV_O_CACHE_MASK;
1109 bdrv_flags |= (BDRV_O_SNAPSHOT|BDRV_O_CACHE_WB|BDRV_O_NO_FLUSH);
1110 }
1111
1112 if (media == MEDIA_CDROM) {
1113 /* CDROM is fine for any interface, don't check. */
1114 ro = 1;
1115 } else if (ro == 1) {
1116 if (type != IF_SCSI && type != IF_VIRTIO && type != IF_FLOPPY && type != IF_NONE) {
1117 fprintf(stderr, "qemu: readonly flag not supported for drive with this interface\n");
1118 return NULL;
1119 }
1120 }
1121
1122 bdrv_flags |= ro ? 0 : BDRV_O_RDWR;
1123
1124 if (bdrv_open(dinfo->bdrv, file, bdrv_flags, drv) < 0) {
1125 fprintf(stderr, "qemu: could not open disk image %s: %s\n",
1126 file, strerror(errno));
1127 return NULL;
1128 }
1129
1130 if (bdrv_key_required(dinfo->bdrv))
1131 autostart = 0;
1132 *fatal_error = 0;
1133 return dinfo;
1134 }
1135
1136 static int drive_init_func(QemuOpts *opts, void *opaque)
1137 {
1138 QEMUMachine *machine = opaque;
1139 int fatal_error = 0;
1140
1141 if (drive_init(opts, machine, &fatal_error) == NULL) {
1142 if (fatal_error)
1143 return 1;
1144 }
1145 return 0;
1146 }
1147
1148 static int drive_enable_snapshot(QemuOpts *opts, void *opaque)
1149 {
1150 if (NULL == qemu_opt_get(opts, "snapshot")) {
1151 qemu_opt_set(opts, "snapshot", "on");
1152 }
1153 return 0;
1154 }
1155
1156 void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
1157 {
1158 boot_set_handler = func;
1159 boot_set_opaque = opaque;
1160 }
1161
1162 int qemu_boot_set(const char *boot_devices)
1163 {
1164 if (!boot_set_handler) {
1165 return -EINVAL;
1166 }
1167 return boot_set_handler(boot_set_opaque, boot_devices);
1168 }
1169
1170 static void validate_bootdevices(char *devices)
1171 {
1172 /* We just do some generic consistency checks */
1173 const char *p;
1174 int bitmap = 0;
1175
1176 for (p = devices; *p != '\0'; p++) {
1177 /* Allowed boot devices are:
1178 * a-b: floppy disk drives
1179 * c-f: IDE disk drives
1180 * g-m: machine implementation dependant drives
1181 * n-p: network devices
1182 * It's up to each machine implementation to check if the given boot
1183 * devices match the actual hardware implementation and firmware
1184 * features.
1185 */
1186 if (*p < 'a' || *p > 'p') {
1187 fprintf(stderr, "Invalid boot device '%c'\n", *p);
1188 exit(1);
1189 }
1190 if (bitmap & (1 << (*p - 'a'))) {
1191 fprintf(stderr, "Boot device '%c' was given twice\n", *p);
1192 exit(1);
1193 }
1194 bitmap |= 1 << (*p - 'a');
1195 }
1196 }
1197
1198 static void restore_boot_devices(void *opaque)
1199 {
1200 char *standard_boot_devices = opaque;
1201 static int first = 1;
1202
1203 /* Restore boot order and remove ourselves after the first boot */
1204 if (first) {
1205 first = 0;
1206 return;
1207 }
1208
1209 qemu_boot_set(standard_boot_devices);
1210
1211 qemu_unregister_reset(restore_boot_devices, standard_boot_devices);
1212 qemu_free(standard_boot_devices);
1213 }
1214
1215 static void numa_add(const char *optarg)
1216 {
1217 char option[128];
1218 char *endptr;
1219 unsigned long long value, endvalue;
1220 int nodenr;
1221
1222 optarg = get_opt_name(option, 128, optarg, ',') + 1;
1223 if (!strcmp(option, "node")) {
1224 if (get_param_value(option, 128, "nodeid", optarg) == 0) {
1225 nodenr = nb_numa_nodes;
1226 } else {
1227 nodenr = strtoull(option, NULL, 10);
1228 }
1229
1230 if (get_param_value(option, 128, "mem", optarg) == 0) {
1231 node_mem[nodenr] = 0;
1232 } else {
1233 value = strtoull(option, &endptr, 0);
1234 switch (*endptr) {
1235 case 0: case 'M': case 'm':
1236 value <<= 20;
1237 break;
1238 case 'G': case 'g':
1239 value <<= 30;
1240 break;
1241 }
1242 node_mem[nodenr] = value;
1243 }
1244 if (get_param_value(option, 128, "cpus", optarg) == 0) {
1245 node_cpumask[nodenr] = 0;
1246 } else {
1247 value = strtoull(option, &endptr, 10);
1248 if (value >= 64) {
1249 value = 63;
1250 fprintf(stderr, "only 64 CPUs in NUMA mode supported.\n");
1251 } else {
1252 if (*endptr == '-') {
1253 endvalue = strtoull(endptr+1, &endptr, 10);
1254 if (endvalue >= 63) {
1255 endvalue = 62;
1256 fprintf(stderr,
1257 "only 63 CPUs in NUMA mode supported.\n");
1258 }
1259 value = (2ULL << endvalue) - (1ULL << value);
1260 } else {
1261 value = 1ULL << value;
1262 }
1263 }
1264 node_cpumask[nodenr] = value;
1265 }
1266 nb_numa_nodes++;
1267 }
1268 return;
1269 }
1270
1271 static void smp_parse(const char *optarg)
1272 {
1273 int smp, sockets = 0, threads = 0, cores = 0;
1274 char *endptr;
1275 char option[128];
1276
1277 smp = strtoul(optarg, &endptr, 10);
1278 if (endptr != optarg) {
1279 if (*endptr == ',') {
1280 endptr++;
1281 }
1282 }
1283 if (get_param_value(option, 128, "sockets", endptr) != 0)
1284 sockets = strtoull(option, NULL, 10);
1285 if (get_param_value(option, 128, "cores", endptr) != 0)
1286 cores = strtoull(option, NULL, 10);
1287 if (get_param_value(option, 128, "threads", endptr) != 0)
1288 threads = strtoull(option, NULL, 10);
1289 if (get_param_value(option, 128, "maxcpus", endptr) != 0)
1290 max_cpus = strtoull(option, NULL, 10);
1291
1292 /* compute missing values, prefer sockets over cores over threads */
1293 if (smp == 0 || sockets == 0) {
1294 sockets = sockets > 0 ? sockets : 1;
1295 cores = cores > 0 ? cores : 1;
1296 threads = threads > 0 ? threads : 1;
1297 if (smp == 0) {
1298 smp = cores * threads * sockets;
1299 }
1300 } else {
1301 if (cores == 0) {
1302 threads = threads > 0 ? threads : 1;
1303 cores = smp / (sockets * threads);
1304 } else {
1305 if (sockets) {
1306 threads = smp / (cores * sockets);
1307 }
1308 }
1309 }
1310 smp_cpus = smp;
1311 smp_cores = cores > 0 ? cores : 1;
1312 smp_threads = threads > 0 ? threads : 1;
1313 if (max_cpus == 0)
1314 max_cpus = smp_cpus;
1315 }
1316
1317 /***********************************************************/
1318 /* USB devices */
1319
1320 static int usb_device_add(const char *devname, int is_hotplug)
1321 {
1322 const char *p;
1323 USBDevice *dev = NULL;
1324
1325 if (!usb_enabled)
1326 return -1;
1327
1328 /* drivers with .usbdevice_name entry in USBDeviceInfo */
1329 dev = usbdevice_create(devname);
1330 if (dev)
1331 goto done;
1332
1333 /* the other ones */
1334 if (strstart(devname, "host:", &p)) {
1335 dev = usb_host_device_open(p);
1336 } else if (!strcmp(devname, "bt") || strstart(devname, "bt:", &p)) {
1337 dev = usb_bt_init(devname[2] ? hci_init(p) :
1338 bt_new_hci(qemu_find_bt_vlan(0)));
1339 } else {
1340 return -1;
1341 }
1342 if (!dev)
1343 return -1;
1344
1345 done:
1346 return 0;
1347 }
1348
1349 static int usb_device_del(const char *devname)
1350 {
1351 int bus_num, addr;
1352 const char *p;
1353
1354 if (strstart(devname, "host:", &p))
1355 return usb_host_device_close(p);
1356
1357 if (!usb_enabled)
1358 return -1;
1359
1360 p = strchr(devname, '.');
1361 if (!p)
1362 return -1;
1363 bus_num = strtoul(devname, NULL, 0);
1364 addr = strtoul(p + 1, NULL, 0);
1365
1366 return usb_device_delete_addr(bus_num, addr);
1367 }
1368
1369 static int usb_parse(const char *cmdline)
1370 {
1371 int r;
1372 r = usb_device_add(cmdline, 0);
1373 if (r < 0) {
1374 fprintf(stderr, "qemu: could not add USB device '%s'\n", cmdline);
1375 }
1376 return r;
1377 }
1378
1379 void do_usb_add(Monitor *mon, const QDict *qdict)
1380 {
1381 const char *devname = qdict_get_str(qdict, "devname");
1382 if (usb_device_add(devname, 1) < 0) {
1383 error_report("could not add USB device '%s'", devname);
1384 }
1385 }
1386
1387 void do_usb_del(Monitor *mon, const QDict *qdict)
1388 {
1389 const char *devname = qdict_get_str(qdict, "devname");
1390 if (usb_device_del(devname) < 0) {
1391 error_report("could not delete USB device '%s'", devname);
1392 }
1393 }
1394
1395 /***********************************************************/
1396 /* PCMCIA/Cardbus */
1397
1398 static struct pcmcia_socket_entry_s {
1399 PCMCIASocket *socket;
1400 struct pcmcia_socket_entry_s *next;
1401 } *pcmcia_sockets = 0;
1402
1403 void pcmcia_socket_register(PCMCIASocket *socket)
1404 {
1405 struct pcmcia_socket_entry_s *entry;
1406
1407 entry = qemu_malloc(sizeof(struct pcmcia_socket_entry_s));
1408 entry->socket = socket;
1409 entry->next = pcmcia_sockets;
1410 pcmcia_sockets = entry;
1411 }
1412
1413 void pcmcia_socket_unregister(PCMCIASocket *socket)
1414 {
1415 struct pcmcia_socket_entry_s *entry, **ptr;
1416
1417 ptr = &pcmcia_sockets;
1418 for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
1419 if (entry->socket == socket) {
1420 *ptr = entry->next;
1421 qemu_free(entry);
1422 }
1423 }
1424
1425 void pcmcia_info(Monitor *mon)
1426 {
1427 struct pcmcia_socket_entry_s *iter;
1428
1429 if (!pcmcia_sockets)
1430 monitor_printf(mon, "No PCMCIA sockets\n");
1431
1432 for (iter = pcmcia_sockets; iter; iter = iter->next)
1433 monitor_printf(mon, "%s: %s\n", iter->socket->slot_string,
1434 iter->socket->attached ? iter->socket->card_string :
1435 "Empty");
1436 }
1437
1438 /***********************************************************/
1439 /* I/O handling */
1440
1441 typedef struct IOHandlerRecord {
1442 int fd;
1443 IOCanReadHandler *fd_read_poll;
1444 IOHandler *fd_read;
1445 IOHandler *fd_write;
1446 int deleted;
1447 void *opaque;
1448 /* temporary data */
1449 struct pollfd *ufd;
1450 QLIST_ENTRY(IOHandlerRecord) next;
1451 } IOHandlerRecord;
1452
1453 static QLIST_HEAD(, IOHandlerRecord) io_handlers =
1454 QLIST_HEAD_INITIALIZER(io_handlers);
1455
1456
1457 /* XXX: fd_read_poll should be suppressed, but an API change is
1458 necessary in the character devices to suppress fd_can_read(). */
1459 int qemu_set_fd_handler2(int fd,
1460 IOCanReadHandler *fd_read_poll,
1461 IOHandler *fd_read,
1462 IOHandler *fd_write,
1463 void *opaque)
1464 {
1465 IOHandlerRecord *ioh;
1466
1467 if (!fd_read && !fd_write) {
1468 QLIST_FOREACH(ioh, &io_handlers, next) {
1469 if (ioh->fd == fd) {
1470 ioh->deleted = 1;
1471 break;
1472 }
1473 }
1474 } else {
1475 QLIST_FOREACH(ioh, &io_handlers, next) {
1476 if (ioh->fd == fd)
1477 goto found;
1478 }
1479 ioh = qemu_mallocz(sizeof(IOHandlerRecord));
1480 QLIST_INSERT_HEAD(&io_handlers, ioh, next);
1481 found:
1482 ioh->fd = fd;
1483 ioh->fd_read_poll = fd_read_poll;
1484 ioh->fd_read = fd_read;
1485 ioh->fd_write = fd_write;
1486 ioh->opaque = opaque;
1487 ioh->deleted = 0;
1488 }
1489 return 0;
1490 }
1491
1492 int qemu_set_fd_handler(int fd,
1493 IOHandler *fd_read,
1494 IOHandler *fd_write,
1495 void *opaque)
1496 {
1497 return qemu_set_fd_handler2(fd, NULL, fd_read, fd_write, opaque);
1498 }
1499
1500 /***********************************************************/
1501 /* machine registration */
1502
1503 static QEMUMachine *first_machine = NULL;
1504 QEMUMachine *current_machine = NULL;
1505
1506 int qemu_register_machine(QEMUMachine *m)
1507 {
1508 QEMUMachine **pm;
1509 pm = &first_machine;
1510 while (*pm != NULL)
1511 pm = &(*pm)->next;
1512 m->next = NULL;
1513 *pm = m;
1514 return 0;
1515 }
1516
1517 static QEMUMachine *find_machine(const char *name)
1518 {
1519 QEMUMachine *m;
1520
1521 for(m = first_machine; m != NULL; m = m->next) {
1522 if (!strcmp(m->name, name))
1523 return m;
1524 if (m->alias && !strcmp(m->alias, name))
1525 return m;
1526 }
1527 return NULL;
1528 }
1529
1530 static QEMUMachine *find_default_machine(void)
1531 {
1532 QEMUMachine *m;
1533
1534 for(m = first_machine; m != NULL; m = m->next) {
1535 if (m->is_default) {
1536 return m;
1537 }
1538 }
1539 return NULL;
1540 }
1541
1542 /***********************************************************/
1543 /* main execution loop */
1544
1545 static void gui_update(void *opaque)
1546 {
1547 uint64_t interval = GUI_REFRESH_INTERVAL;
1548 DisplayState *ds = opaque;
1549 DisplayChangeListener *dcl = ds->listeners;
1550
1551 qemu_flush_coalesced_mmio_buffer();
1552 dpy_refresh(ds);
1553
1554 while (dcl != NULL) {
1555 if (dcl->gui_timer_interval &&
1556 dcl->gui_timer_interval < interval)
1557 interval = dcl->gui_timer_interval;
1558 dcl = dcl->next;
1559 }
1560 qemu_mod_timer(ds->gui_timer, interval + qemu_get_clock(rt_clock));
1561 }
1562
1563 static void nographic_update(void *opaque)
1564 {
1565 uint64_t interval = GUI_REFRESH_INTERVAL;
1566
1567 qemu_flush_coalesced_mmio_buffer();
1568 qemu_mod_timer(nographic_timer, interval + qemu_get_clock(rt_clock));
1569 }
1570
1571 struct vm_change_state_entry {
1572 VMChangeStateHandler *cb;
1573 void *opaque;
1574 QLIST_ENTRY (vm_change_state_entry) entries;
1575 };
1576
1577 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1578
1579 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1580 void *opaque)
1581 {
1582 VMChangeStateEntry *e;
1583
1584 e = qemu_mallocz(sizeof (*e));
1585
1586 e->cb = cb;
1587 e->opaque = opaque;
1588 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1589 return e;
1590 }
1591
1592 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1593 {
1594 QLIST_REMOVE (e, entries);
1595 qemu_free (e);
1596 }
1597
1598 void vm_state_notify(int running, int reason)
1599 {
1600 VMChangeStateEntry *e;
1601
1602 for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
1603 e->cb(e->opaque, running, reason);
1604 }
1605 }
1606
1607 void vm_start(void)
1608 {
1609 if (!vm_running) {
1610 cpu_enable_ticks();
1611 vm_running = 1;
1612 vm_state_notify(1, 0);
1613 resume_all_vcpus();
1614 monitor_protocol_event(QEVENT_RESUME, NULL);
1615 }
1616 }
1617
1618 /* reset/shutdown handler */
1619
1620 typedef struct QEMUResetEntry {
1621 QTAILQ_ENTRY(QEMUResetEntry) entry;
1622 QEMUResetHandler *func;
1623 void *opaque;
1624 } QEMUResetEntry;
1625
1626 static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
1627 QTAILQ_HEAD_INITIALIZER(reset_handlers);
1628 static int reset_requested;
1629 static int shutdown_requested;
1630 static int powerdown_requested;
1631 int debug_requested;
1632 int vmstop_requested;
1633
1634 int qemu_shutdown_requested(void)
1635 {
1636 int r = shutdown_requested;
1637 shutdown_requested = 0;
1638 return r;
1639 }
1640
1641 int qemu_reset_requested(void)
1642 {
1643 int r = reset_requested;
1644 reset_requested = 0;
1645 return r;
1646 }
1647
1648 int qemu_powerdown_requested(void)
1649 {
1650 int r = powerdown_requested;
1651 powerdown_requested = 0;
1652 return r;
1653 }
1654
1655 static int qemu_debug_requested(void)
1656 {
1657 int r = debug_requested;
1658 debug_requested = 0;
1659 return r;
1660 }
1661
1662 static int qemu_vmstop_requested(void)
1663 {
1664 int r = vmstop_requested;
1665 vmstop_requested = 0;
1666 return r;
1667 }
1668
1669 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
1670 {
1671 QEMUResetEntry *re = qemu_mallocz(sizeof(QEMUResetEntry));
1672
1673 re->func = func;
1674 re->opaque = opaque;
1675 QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
1676 }
1677
1678 void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
1679 {
1680 QEMUResetEntry *re;
1681
1682 QTAILQ_FOREACH(re, &reset_handlers, entry) {
1683 if (re->func == func && re->opaque == opaque) {
1684 QTAILQ_REMOVE(&reset_handlers, re, entry);
1685 qemu_free(re);
1686 return;
1687 }
1688 }
1689 }
1690
1691 void qemu_system_reset(void)
1692 {
1693 QEMUResetEntry *re, *nre;
1694
1695 /* reset all devices */
1696 QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
1697 re->func(re->opaque);
1698 }
1699 monitor_protocol_event(QEVENT_RESET, NULL);
1700 cpu_synchronize_all_post_reset();
1701 }
1702
1703 void qemu_system_reset_request(void)
1704 {
1705 if (no_reboot) {
1706 shutdown_requested = 1;
1707 } else {
1708 reset_requested = 1;
1709 }
1710 qemu_notify_event();
1711 }
1712
1713 void qemu_system_shutdown_request(void)
1714 {
1715 shutdown_requested = 1;
1716 qemu_notify_event();
1717 }
1718
1719 void qemu_system_powerdown_request(void)
1720 {
1721 powerdown_requested = 1;
1722 qemu_notify_event();
1723 }
1724
1725 void main_loop_wait(int nonblocking)
1726 {
1727 IOHandlerRecord *ioh;
1728 fd_set rfds, wfds, xfds;
1729 int ret, nfds;
1730 struct timeval tv;
1731 int timeout;
1732
1733 if (nonblocking)
1734 timeout = 0;
1735 else {
1736 timeout = qemu_calculate_timeout();
1737 qemu_bh_update_timeout(&timeout);
1738 }
1739
1740 os_host_main_loop_wait(&timeout);
1741
1742 /* poll any events */
1743 /* XXX: separate device handlers from system ones */
1744 nfds = -1;
1745 FD_ZERO(&rfds);
1746 FD_ZERO(&wfds);
1747 FD_ZERO(&xfds);
1748 QLIST_FOREACH(ioh, &io_handlers, next) {
1749 if (ioh->deleted)
1750 continue;
1751 if (ioh->fd_read &&
1752 (!ioh->fd_read_poll ||
1753 ioh->fd_read_poll(ioh->opaque) != 0)) {
1754 FD_SET(ioh->fd, &rfds);
1755 if (ioh->fd > nfds)
1756 nfds = ioh->fd;
1757 }
1758 if (ioh->fd_write) {
1759 FD_SET(ioh->fd, &wfds);
1760 if (ioh->fd > nfds)
1761 nfds = ioh->fd;
1762 }
1763 }
1764
1765 tv.tv_sec = timeout / 1000;
1766 tv.tv_usec = (timeout % 1000) * 1000;
1767
1768 slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
1769
1770 qemu_mutex_unlock_iothread();
1771 ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
1772 qemu_mutex_lock_iothread();
1773 if (ret > 0) {
1774 IOHandlerRecord *pioh;
1775
1776 QLIST_FOREACH_SAFE(ioh, &io_handlers, next, pioh) {
1777 if (ioh->deleted) {
1778 QLIST_REMOVE(ioh, next);
1779 qemu_free(ioh);
1780 continue;
1781 }
1782 if (ioh->fd_read && FD_ISSET(ioh->fd, &rfds)) {
1783 ioh->fd_read(ioh->opaque);
1784 }
1785 if (ioh->fd_write && FD_ISSET(ioh->fd, &wfds)) {
1786 ioh->fd_write(ioh->opaque);
1787 }
1788 }
1789 }
1790
1791 slirp_select_poll(&rfds, &wfds, &xfds, (ret < 0));
1792
1793 qemu_run_all_timers();
1794
1795 /* Check bottom-halves last in case any of the earlier events triggered
1796 them. */
1797 qemu_bh_poll();
1798
1799 }
1800
1801 static int vm_can_run(void)
1802 {
1803 if (powerdown_requested)
1804 return 0;
1805 if (reset_requested)
1806 return 0;
1807 if (shutdown_requested)
1808 return 0;
1809 if (debug_requested)
1810 return 0;
1811 return 1;
1812 }
1813
1814 qemu_irq qemu_system_powerdown;
1815
1816 static void main_loop(void)
1817 {
1818 int r;
1819
1820 qemu_main_loop_start();
1821
1822 for (;;) {
1823 do {
1824 bool nonblocking = false;
1825 #ifdef CONFIG_PROFILER
1826 int64_t ti;
1827 #endif
1828 #ifndef CONFIG_IOTHREAD
1829 nonblocking = tcg_cpu_exec();
1830 #endif
1831 #ifdef CONFIG_PROFILER
1832 ti = profile_getclock();
1833 #endif
1834 main_loop_wait(nonblocking);
1835 #ifdef CONFIG_PROFILER
1836 dev_time += profile_getclock() - ti;
1837 #endif
1838 } while (vm_can_run());
1839
1840 if ((r = qemu_debug_requested())) {
1841 vm_stop(r);
1842 }
1843 if (qemu_shutdown_requested()) {
1844 monitor_protocol_event(QEVENT_SHUTDOWN, NULL);
1845 if (no_shutdown) {
1846 vm_stop(0);
1847 no_shutdown = 0;
1848 } else
1849 break;
1850 }
1851 if (qemu_reset_requested()) {
1852 pause_all_vcpus();
1853 qemu_system_reset();
1854 resume_all_vcpus();
1855 }
1856 if (qemu_powerdown_requested()) {
1857 monitor_protocol_event(QEVENT_POWERDOWN, NULL);
1858 qemu_irq_raise(qemu_system_powerdown);
1859 }
1860 if ((r = qemu_vmstop_requested())) {
1861 vm_stop(r);
1862 }
1863 }
1864 pause_all_vcpus();
1865 }
1866
1867 static void version(void)
1868 {
1869 printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
1870 }
1871
1872 static void help(int exitcode)
1873 {
1874 const char *options_help =
1875 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
1876 opt_help
1877 #define DEFHEADING(text) stringify(text) "\n"
1878 #include "qemu-options.h"
1879 #undef DEF
1880 #undef DEFHEADING
1881 #undef GEN_DOCS
1882 ;
1883 version();
1884 printf("usage: %s [options] [disk_image]\n"
1885 "\n"
1886 "'disk_image' is a raw hard disk image for IDE hard disk 0\n"
1887 "\n"
1888 "%s\n"
1889 "During emulation, the following keys are useful:\n"
1890 "ctrl-alt-f toggle full screen\n"
1891 "ctrl-alt-n switch to virtual console 'n'\n"
1892 "ctrl-alt toggle mouse and keyboard grab\n"
1893 "\n"
1894 "When using -nographic, press 'ctrl-a h' to get some help.\n",
1895 "qemu",
1896 options_help);
1897 exit(exitcode);
1898 }
1899
1900 #define HAS_ARG 0x0001
1901
1902 enum {
1903 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
1904 opt_enum,
1905 #define DEFHEADING(text)
1906 #include "qemu-options.h"
1907 #undef DEF
1908 #undef DEFHEADING
1909 #undef GEN_DOCS
1910 };
1911
1912 typedef struct QEMUOption {
1913 const char *name;
1914 int flags;
1915 int index;
1916 uint32_t arch_mask;
1917 } QEMUOption;
1918
1919 static const QEMUOption qemu_options[] = {
1920 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1921 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
1922 { option, opt_arg, opt_enum, arch_mask },
1923 #define DEFHEADING(text)
1924 #include "qemu-options.h"
1925 #undef DEF
1926 #undef DEFHEADING
1927 #undef GEN_DOCS
1928 { NULL },
1929 };
1930 static void select_vgahw (const char *p)
1931 {
1932 const char *opts;
1933
1934 default_vga = 0;
1935 vga_interface_type = VGA_NONE;
1936 if (strstart(p, "std", &opts)) {
1937 vga_interface_type = VGA_STD;
1938 } else if (strstart(p, "cirrus", &opts)) {
1939 vga_interface_type = VGA_CIRRUS;
1940 } else if (strstart(p, "vmware", &opts)) {
1941 vga_interface_type = VGA_VMWARE;
1942 } else if (strstart(p, "xenfb", &opts)) {
1943 vga_interface_type = VGA_XENFB;
1944 } else if (!strstart(p, "none", &opts)) {
1945 invalid_vga:
1946 fprintf(stderr, "Unknown vga type: %s\n", p);
1947 exit(1);
1948 }
1949 while (*opts) {
1950 const char *nextopt;
1951
1952 if (strstart(opts, ",retrace=", &nextopt)) {
1953 opts = nextopt;
1954 if (strstart(opts, "dumb", &nextopt))
1955 vga_retrace_method = VGA_RETRACE_DUMB;
1956 else if (strstart(opts, "precise", &nextopt))
1957 vga_retrace_method = VGA_RETRACE_PRECISE;
1958 else goto invalid_vga;
1959 } else goto invalid_vga;
1960 opts = nextopt;
1961 }
1962 }
1963
1964 static int balloon_parse(const char *arg)
1965 {
1966 QemuOpts *opts;
1967
1968 if (strcmp(arg, "none") == 0) {
1969 return 0;
1970 }
1971
1972 if (!strncmp(arg, "virtio", 6)) {
1973 if (arg[6] == ',') {
1974 /* have params -> parse them */
1975 opts = qemu_opts_parse(&qemu_device_opts, arg+7, 0);
1976 if (!opts)
1977 return -1;
1978 } else {
1979 /* create empty opts */
1980 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
1981 }
1982 qemu_opt_set(opts, "driver", "virtio-balloon-pci");
1983 return 0;
1984 }
1985
1986 return -1;
1987 }
1988
1989 #ifndef _WIN32
1990
1991 static void termsig_handler(int signal)
1992 {
1993 qemu_system_shutdown_request();
1994 }
1995
1996 static void sigchld_handler(int signal)
1997 {
1998 waitpid(-1, NULL, WNOHANG);
1999 }
2000
2001 static void sighandler_setup(void)
2002 {
2003 struct sigaction act;
2004
2005 memset(&act, 0, sizeof(act));
2006 act.sa_handler = termsig_handler;
2007 sigaction(SIGINT, &act, NULL);
2008 sigaction(SIGHUP, &act, NULL);
2009 sigaction(SIGTERM, &act, NULL);
2010
2011 act.sa_handler = sigchld_handler;
2012 act.sa_flags = SA_NOCLDSTOP;
2013 sigaction(SIGCHLD, &act, NULL);
2014 }
2015
2016 #endif
2017
2018 #ifdef _WIN32
2019 /* Look for support files in the same directory as the executable. */
2020 static char *find_datadir(const char *argv0)
2021 {
2022 char *p;
2023 char buf[MAX_PATH];
2024 DWORD len;
2025
2026 len = GetModuleFileName(NULL, buf, sizeof(buf) - 1);
2027 if (len == 0) {
2028 return NULL;
2029 }
2030
2031 buf[len] = 0;
2032 p = buf + len - 1;
2033 while (p != buf && *p != '\\')
2034 p--;
2035 *p = 0;
2036 if (access(buf, R_OK) == 0) {
2037 return qemu_strdup(buf);
2038 }
2039 return NULL;
2040 }
2041 #else /* !_WIN32 */
2042
2043 /* Find a likely location for support files using the location of the binary.
2044 For installed binaries this will be "$bindir/../share/qemu". When
2045 running from the build tree this will be "$bindir/../pc-bios". */
2046 #define SHARE_SUFFIX "/share/qemu"
2047 #define BUILD_SUFFIX "/pc-bios"
2048 static char *find_datadir(const char *argv0)
2049 {
2050 char *dir;
2051 char *p = NULL;
2052 char *res;
2053 char buf[PATH_MAX];
2054 size_t max_len;
2055
2056 #if defined(__linux__)
2057 {
2058 int len;
2059 len = readlink("/proc/self/exe", buf, sizeof(buf) - 1);
2060 if (len > 0) {
2061 buf[len] = 0;
2062 p = buf;
2063 }
2064 }
2065 #elif defined(__FreeBSD__)
2066 {
2067 static int mib[4] = {CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, -1};
2068 size_t len = sizeof(buf) - 1;
2069
2070 *buf = '\0';
2071 if (!sysctl(mib, sizeof(mib)/sizeof(*mib), buf, &len, NULL, 0) &&
2072 *buf) {
2073 buf[sizeof(buf) - 1] = '\0';
2074 p = buf;
2075 }
2076 }
2077 #endif
2078 /* If we don't have any way of figuring out the actual executable
2079 location then try argv[0]. */
2080 if (!p) {
2081 p = realpath(argv0, buf);
2082 if (!p) {
2083 return NULL;
2084 }
2085 }
2086 dir = dirname(p);
2087 dir = dirname(dir);
2088
2089 max_len = strlen(dir) +
2090 MAX(strlen(SHARE_SUFFIX), strlen(BUILD_SUFFIX)) + 1;
2091 res = qemu_mallocz(max_len);
2092 snprintf(res, max_len, "%s%s", dir, SHARE_SUFFIX);
2093 if (access(res, R_OK)) {
2094 snprintf(res, max_len, "%s%s", dir, BUILD_SUFFIX);
2095 if (access(res, R_OK)) {
2096 qemu_free(res);
2097 res = NULL;
2098 }
2099 }
2100
2101 return res;
2102 }
2103 #undef SHARE_SUFFIX
2104 #undef BUILD_SUFFIX
2105 #endif
2106
2107 char *qemu_find_file(int type, const char *name)
2108 {
2109 int len;
2110 const char *subdir;
2111 char *buf;
2112
2113 /* If name contains path separators then try it as a straight path. */
2114 if ((strchr(name, '/') || strchr(name, '\\'))
2115 && access(name, R_OK) == 0) {
2116 return qemu_strdup(name);
2117 }
2118 switch (type) {
2119 case QEMU_FILE_TYPE_BIOS:
2120 subdir = "";
2121 break;
2122 case QEMU_FILE_TYPE_KEYMAP:
2123 subdir = "keymaps/";
2124 break;
2125 default:
2126 abort();
2127 }
2128 len = strlen(data_dir) + strlen(name) + strlen(subdir) + 2;
2129 buf = qemu_mallocz(len);
2130 snprintf(buf, len, "%s/%s%s", data_dir, subdir, name);
2131 if (access(buf, R_OK)) {
2132 qemu_free(buf);
2133 return NULL;
2134 }
2135 return buf;
2136 }
2137
2138 static int device_help_func(QemuOpts *opts, void *opaque)
2139 {
2140 return qdev_device_help(opts);
2141 }
2142
2143 static int device_init_func(QemuOpts *opts, void *opaque)
2144 {
2145 DeviceState *dev;
2146
2147 dev = qdev_device_add(opts);
2148 if (!dev)
2149 return -1;
2150 return 0;
2151 }
2152
2153 static int chardev_init_func(QemuOpts *opts, void *opaque)
2154 {
2155 CharDriverState *chr;
2156
2157 chr = qemu_chr_open_opts(opts, NULL);
2158 if (!chr)
2159 return -1;
2160 return 0;
2161 }
2162
2163 #ifdef CONFIG_LINUX
2164 static int fsdev_init_func(QemuOpts *opts, void *opaque)
2165 {
2166 int ret;
2167 ret = qemu_fsdev_add(opts);
2168
2169 return ret;
2170 }
2171 #endif
2172
2173 static int mon_init_func(QemuOpts *opts, void *opaque)
2174 {
2175 CharDriverState *chr;
2176 const char *chardev;
2177 const char *mode;
2178 int flags;
2179
2180 mode = qemu_opt_get(opts, "mode");
2181 if (mode == NULL) {
2182 mode = "readline";
2183 }
2184 if (strcmp(mode, "readline") == 0) {
2185 flags = MONITOR_USE_READLINE;
2186 } else if (strcmp(mode, "control") == 0) {
2187 flags = MONITOR_USE_CONTROL;
2188 } else {
2189 fprintf(stderr, "unknown monitor mode \"%s\"\n", mode);
2190 exit(1);
2191 }
2192
2193 if (qemu_opt_get_bool(opts, "default", 0))
2194 flags |= MONITOR_IS_DEFAULT;
2195
2196 chardev = qemu_opt_get(opts, "chardev");
2197 chr = qemu_chr_find(chardev);
2198 if (chr == NULL) {
2199 fprintf(stderr, "chardev \"%s\" not found\n", chardev);
2200 exit(1);
2201 }
2202
2203 monitor_init(chr, flags);
2204 return 0;
2205 }
2206
2207 static void monitor_parse(const char *optarg, const char *mode)
2208 {
2209 static int monitor_device_index = 0;
2210 QemuOpts *opts;
2211 const char *p;
2212 char label[32];
2213 int def = 0;
2214
2215 if (strstart(optarg, "chardev:", &p)) {
2216 snprintf(label, sizeof(label), "%s", p);
2217 } else {
2218 snprintf(label, sizeof(label), "compat_monitor%d",
2219 monitor_device_index);
2220 if (monitor_device_index == 0) {
2221 def = 1;
2222 }
2223 opts = qemu_chr_parse_compat(label, optarg);
2224 if (!opts) {
2225 fprintf(stderr, "parse error: %s\n", optarg);
2226 exit(1);
2227 }
2228 }
2229
2230 opts = qemu_opts_create(&qemu_mon_opts, label, 1);
2231 if (!opts) {
2232 fprintf(stderr, "duplicate chardev: %s\n", label);
2233 exit(1);
2234 }
2235 qemu_opt_set(opts, "mode", mode);
2236 qemu_opt_set(opts, "chardev", label);
2237 if (def)
2238 qemu_opt_set(opts, "default", "on");
2239 monitor_device_index++;
2240 }
2241
2242 struct device_config {
2243 enum {
2244 DEV_USB, /* -usbdevice */
2245 DEV_BT, /* -bt */
2246 DEV_SERIAL, /* -serial */
2247 DEV_PARALLEL, /* -parallel */
2248 DEV_VIRTCON, /* -virtioconsole */
2249 DEV_DEBUGCON, /* -debugcon */
2250 } type;
2251 const char *cmdline;
2252 QTAILQ_ENTRY(device_config) next;
2253 };
2254 QTAILQ_HEAD(, device_config) device_configs = QTAILQ_HEAD_INITIALIZER(device_configs);
2255
2256 static void add_device_config(int type, const char *cmdline)
2257 {
2258 struct device_config *conf;
2259
2260 conf = qemu_mallocz(sizeof(*conf));
2261 conf->type = type;
2262 conf->cmdline = cmdline;
2263 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2264 }
2265
2266 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2267 {
2268 struct device_config *conf;
2269 int rc;
2270
2271 QTAILQ_FOREACH(conf, &device_configs, next) {
2272 if (conf->type != type)
2273 continue;
2274 rc = func(conf->cmdline);
2275 if (0 != rc)
2276 return rc;
2277 }
2278 return 0;
2279 }
2280
2281 static int serial_parse(const char *devname)
2282 {
2283 static int index = 0;
2284 char label[32];
2285
2286 if (strcmp(devname, "none") == 0)
2287 return 0;
2288 if (index == MAX_SERIAL_PORTS) {
2289 fprintf(stderr, "qemu: too many serial ports\n");
2290 exit(1);
2291 }
2292 snprintf(label, sizeof(label), "serial%d", index);
2293 serial_hds[index] = qemu_chr_open(label, devname, NULL);
2294 if (!serial_hds[index]) {
2295 fprintf(stderr, "qemu: could not open serial device '%s': %s\n",
2296 devname, strerror(errno));
2297 return -1;
2298 }
2299 index++;
2300 return 0;
2301 }
2302
2303 static int parallel_parse(const char *devname)
2304 {
2305 static int index = 0;
2306 char label[32];
2307
2308 if (strcmp(devname, "none") == 0)
2309 return 0;
2310 if (index == MAX_PARALLEL_PORTS) {
2311 fprintf(stderr, "qemu: too many parallel ports\n");
2312 exit(1);
2313 }
2314 snprintf(label, sizeof(label), "parallel%d", index);
2315 parallel_hds[index] = qemu_chr_open(label, devname, NULL);
2316 if (!parallel_hds[index]) {
2317 fprintf(stderr, "qemu: could not open parallel device '%s': %s\n",
2318 devname, strerror(errno));
2319 return -1;
2320 }
2321 index++;
2322 return 0;
2323 }
2324
2325 static int virtcon_parse(const char *devname)
2326 {
2327 static int index = 0;
2328 char label[32];
2329 QemuOpts *bus_opts, *dev_opts;
2330
2331 if (strcmp(devname, "none") == 0)
2332 return 0;
2333 if (index == MAX_VIRTIO_CONSOLES) {
2334 fprintf(stderr, "qemu: too many virtio consoles\n");
2335 exit(1);
2336 }
2337
2338 bus_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2339 qemu_opt_set(bus_opts, "driver", "virtio-serial");
2340
2341 dev_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2342 qemu_opt_set(dev_opts, "driver", "virtconsole");
2343
2344 snprintf(label, sizeof(label), "virtcon%d", index);
2345 virtcon_hds[index] = qemu_chr_open(label, devname, NULL);
2346 if (!virtcon_hds[index]) {
2347 fprintf(stderr, "qemu: could not open virtio console '%s': %s\n",
2348 devname, strerror(errno));
2349 return -1;
2350 }
2351 qemu_opt_set(dev_opts, "chardev", label);
2352
2353 index++;
2354 return 0;
2355 }
2356
2357 static int debugcon_parse(const char *devname)
2358 {
2359 QemuOpts *opts;
2360
2361 if (!qemu_chr_open("debugcon", devname, NULL)) {
2362 exit(1);
2363 }
2364 opts = qemu_opts_create(&qemu_device_opts, "debugcon", 1);
2365 if (!opts) {
2366 fprintf(stderr, "qemu: already have a debugcon device\n");
2367 exit(1);
2368 }
2369 qemu_opt_set(opts, "driver", "isa-debugcon");
2370 qemu_opt_set(opts, "chardev", "debugcon");
2371 return 0;
2372 }
2373
2374 static const QEMUOption *lookup_opt(int argc, char **argv,
2375 const char **poptarg, int *poptind)
2376 {
2377 const QEMUOption *popt;
2378 int optind = *poptind;
2379 char *r = argv[optind];
2380 const char *optarg;
2381
2382 loc_set_cmdline(argv, optind, 1);
2383 optind++;
2384 /* Treat --foo the same as -foo. */
2385 if (r[1] == '-')
2386 r++;
2387 popt = qemu_options;
2388 for(;;) {
2389 if (!popt->name) {
2390 error_report("invalid option");
2391 exit(1);
2392 }
2393 if (!strcmp(popt->name, r + 1))
2394 break;
2395 popt++;
2396 }
2397 if (popt->flags & HAS_ARG) {
2398 if (optind >= argc) {
2399 error_report("requires an argument");
2400 exit(1);
2401 }
2402 optarg = argv[optind++];
2403 loc_set_cmdline(argv, optind - 2, 2);
2404 } else {
2405 optarg = NULL;
2406 }
2407
2408 *poptarg = optarg;
2409 *poptind = optind;
2410
2411 return popt;
2412 }
2413
2414 int main(int argc, char **argv, char **envp)
2415 {
2416 const char *gdbstub_dev = NULL;
2417 int i;
2418 int snapshot, linux_boot;
2419 const char *icount_option = NULL;
2420 const char *initrd_filename;
2421 const char *kernel_filename, *kernel_cmdline;
2422 char boot_devices[33] = "cad"; /* default to HD->floppy->CD-ROM */
2423 DisplayState *ds;
2424 DisplayChangeListener *dcl;
2425 int cyls, heads, secs, translation;
2426 QemuOpts *hda_opts = NULL, *opts;
2427 int optind;
2428 const char *optarg;
2429 const char *loadvm = NULL;
2430 QEMUMachine *machine;
2431 const char *cpu_model;
2432 #ifndef _WIN32
2433 int fds[2];
2434 #endif
2435 int tb_size;
2436 const char *pid_file = NULL;
2437 const char *incoming = NULL;
2438 #ifndef _WIN32
2439 int fd = 0;
2440 struct passwd *pwd = NULL;
2441 const char *chroot_dir = NULL;
2442 const char *run_as = NULL;
2443 #endif
2444 int show_vnc_port = 0;
2445 int defconfig = 1;
2446
2447 error_set_progname(argv[0]);
2448
2449 init_clocks();
2450
2451 qemu_cache_utils_init(envp);
2452
2453 QLIST_INIT (&vm_change_state_head);
2454 os_setup_early_signal_handling();
2455
2456 module_call_init(MODULE_INIT_MACHINE);
2457 machine = find_default_machine();
2458 cpu_model = NULL;
2459 initrd_filename = NULL;
2460 ram_size = 0;
2461 snapshot = 0;
2462 kernel_filename = NULL;
2463 kernel_cmdline = "";
2464 cyls = heads = secs = 0;
2465 translation = BIOS_ATA_TRANSLATION_AUTO;
2466
2467 for (i = 0; i < MAX_NODES; i++) {
2468 node_mem[i] = 0;
2469 node_cpumask[i] = 0;
2470 }
2471
2472 nb_numa_nodes = 0;
2473 nb_nics = 0;
2474
2475 tb_size = 0;
2476 autostart= 1;
2477
2478 /* first pass of option parsing */
2479 optind = 1;
2480 while (optind < argc) {
2481 if (argv[optind][0] != '-') {
2482 /* disk image */
2483 optind++;
2484 continue;
2485 } else {
2486 const QEMUOption *popt;
2487
2488 popt = lookup_opt(argc, argv, &optarg, &optind);
2489 switch (popt->index) {
2490 case QEMU_OPTION_nodefconfig:
2491 defconfig=0;
2492 break;
2493 }
2494 }
2495 }
2496
2497 if (defconfig) {
2498 int ret;
2499
2500 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2501 if (ret < 0 && ret != -ENOENT) {
2502 exit(1);
2503 }
2504
2505 ret = qemu_read_config_file(arch_config_name);
2506 if (ret < 0 && ret != -ENOENT) {
2507 exit(1);
2508 }
2509 }
2510 cpudef_init();
2511
2512 /* second pass of option parsing */
2513 optind = 1;
2514 for(;;) {
2515 if (optind >= argc)
2516 break;
2517 if (argv[optind][0] != '-') {
2518 hda_opts = drive_add(argv[optind++], HD_ALIAS, 0);
2519 } else {
2520 const QEMUOption *popt;
2521
2522 popt = lookup_opt(argc, argv, &optarg, &optind);
2523 if (!(popt->arch_mask & arch_type)) {
2524 printf("Option %s not supported for this target\n", popt->name);
2525 exit(1);
2526 }
2527 switch(popt->index) {
2528 case QEMU_OPTION_M:
2529 machine = find_machine(optarg);
2530 if (!machine) {
2531 QEMUMachine *m;
2532 printf("Supported machines are:\n");
2533 for(m = first_machine; m != NULL; m = m->next) {
2534 if (m->alias)
2535 printf("%-10s %s (alias of %s)\n",
2536 m->alias, m->desc, m->name);
2537 printf("%-10s %s%s\n",
2538 m->name, m->desc,
2539 m->is_default ? " (default)" : "");
2540 }
2541 exit(*optarg != '?');
2542 }
2543 break;
2544 case QEMU_OPTION_cpu:
2545 /* hw initialization will check this */
2546 if (*optarg == '?') {
2547 list_cpus(stdout, &fprintf, optarg);
2548 exit(0);
2549 } else {
2550 cpu_model = optarg;
2551 }
2552 break;
2553 case QEMU_OPTION_initrd:
2554 initrd_filename = optarg;
2555 break;
2556 case QEMU_OPTION_hda:
2557 if (cyls == 0)
2558 hda_opts = drive_add(optarg, HD_ALIAS, 0);
2559 else
2560 hda_opts = drive_add(optarg, HD_ALIAS
2561 ",cyls=%d,heads=%d,secs=%d%s",
2562 0, cyls, heads, secs,
2563 translation == BIOS_ATA_TRANSLATION_LBA ?
2564 ",trans=lba" :
2565 translation == BIOS_ATA_TRANSLATION_NONE ?
2566 ",trans=none" : "");
2567 break;
2568 case QEMU_OPTION_hdb:
2569 case QEMU_OPTION_hdc:
2570 case QEMU_OPTION_hdd:
2571 drive_add(optarg, HD_ALIAS, popt->index - QEMU_OPTION_hda);
2572 break;
2573 case QEMU_OPTION_drive:
2574 drive_add(NULL, "%s", optarg);
2575 break;
2576 case QEMU_OPTION_set:
2577 if (qemu_set_option(optarg) != 0)
2578 exit(1);
2579 break;
2580 case QEMU_OPTION_global:
2581 if (qemu_global_option(optarg) != 0)
2582 exit(1);
2583 break;
2584 case QEMU_OPTION_mtdblock:
2585 drive_add(optarg, MTD_ALIAS);
2586 break;
2587 case QEMU_OPTION_sd:
2588 drive_add(optarg, SD_ALIAS);
2589 break;
2590 case QEMU_OPTION_pflash:
2591 drive_add(optarg, PFLASH_ALIAS);
2592 break;
2593 case QEMU_OPTION_snapshot:
2594 snapshot = 1;
2595 break;
2596 case QEMU_OPTION_hdachs:
2597 {
2598 const char *p;
2599 p = optarg;
2600 cyls = strtol(p, (char **)&p, 0);
2601 if (cyls < 1 || cyls > 16383)
2602 goto chs_fail;
2603 if (*p != ',')
2604 goto chs_fail;
2605 p++;
2606 heads = strtol(p, (char **)&p, 0);
2607 if (heads < 1 || heads > 16)
2608 goto chs_fail;
2609 if (*p != ',')
2610 goto chs_fail;
2611 p++;
2612 secs = strtol(p, (char **)&p, 0);
2613 if (secs < 1 || secs > 63)
2614 goto chs_fail;
2615 if (*p == ',') {
2616 p++;
2617 if (!strcmp(p, "none"))
2618 translation = BIOS_ATA_TRANSLATION_NONE;
2619 else if (!strcmp(p, "lba"))
2620 translation = BIOS_ATA_TRANSLATION_LBA;
2621 else if (!strcmp(p, "auto"))
2622 translation = BIOS_ATA_TRANSLATION_AUTO;
2623 else
2624 goto chs_fail;
2625 } else if (*p != '\0') {
2626 chs_fail:
2627 fprintf(stderr, "qemu: invalid physical CHS format\n");
2628 exit(1);
2629 }
2630 if (hda_opts != NULL) {
2631 char num[16];
2632 snprintf(num, sizeof(num), "%d", cyls);
2633 qemu_opt_set(hda_opts, "cyls", num);
2634 snprintf(num, sizeof(num), "%d", heads);
2635 qemu_opt_set(hda_opts, "heads", num);
2636 snprintf(num, sizeof(num), "%d", secs);
2637 qemu_opt_set(hda_opts, "secs", num);
2638 if (translation == BIOS_ATA_TRANSLATION_LBA)
2639 qemu_opt_set(hda_opts, "trans", "lba");
2640 if (translation == BIOS_ATA_TRANSLATION_NONE)
2641 qemu_opt_set(hda_opts, "trans", "none");
2642 }
2643 }
2644 break;
2645 case QEMU_OPTION_numa:
2646 if (nb_numa_nodes >= MAX_NODES) {
2647 fprintf(stderr, "qemu: too many NUMA nodes\n");
2648 exit(1);
2649 }
2650 numa_add(optarg);
2651 break;
2652 case QEMU_OPTION_nographic:
2653 display_type = DT_NOGRAPHIC;
2654 break;
2655 #ifdef CONFIG_CURSES
2656 case QEMU_OPTION_curses:
2657 display_type = DT_CURSES;
2658 break;
2659 #endif
2660 case QEMU_OPTION_portrait:
2661 graphic_rotate = 1;
2662 break;
2663 case QEMU_OPTION_kernel:
2664 kernel_filename = optarg;
2665 break;
2666 case QEMU_OPTION_append:
2667 kernel_cmdline = optarg;
2668 break;
2669 case QEMU_OPTION_cdrom:
2670 drive_add(optarg, CDROM_ALIAS);
2671 break;
2672 case QEMU_OPTION_boot:
2673 {
2674 static const char * const params[] = {
2675 "order", "once", "menu", NULL
2676 };
2677 char buf[sizeof(boot_devices)];
2678 char *standard_boot_devices;
2679 int legacy = 0;
2680
2681 if (!strchr(optarg, '=')) {
2682 legacy = 1;
2683 pstrcpy(buf, sizeof(buf), optarg);
2684 } else if (check_params(buf, sizeof(buf), params, optarg) < 0) {
2685 fprintf(stderr,
2686 "qemu: unknown boot parameter '%s' in '%s'\n",
2687 buf, optarg);
2688 exit(1);
2689 }
2690
2691 if (legacy ||
2692 get_param_value(buf, sizeof(buf), "order", optarg)) {
2693 validate_bootdevices(buf);
2694 pstrcpy(boot_devices, sizeof(boot_devices), buf);
2695 }
2696 if (!legacy) {
2697 if (get_param_value(buf, sizeof(buf),
2698 "once", optarg)) {
2699 validate_bootdevices(buf);
2700 standard_boot_devices = qemu_strdup(boot_devices);
2701 pstrcpy(boot_devices, sizeof(boot_devices), buf);
2702 qemu_register_reset(restore_boot_devices,
2703 standard_boot_devices);
2704 }
2705 if (get_param_value(buf, sizeof(buf),
2706 "menu", optarg)) {
2707 if (!strcmp(buf, "on")) {
2708 boot_menu = 1;
2709 } else if (!strcmp(buf, "off")) {
2710 boot_menu = 0;
2711 } else {
2712 fprintf(stderr,
2713 "qemu: invalid option value '%s'\n",
2714 buf);
2715 exit(1);
2716 }
2717 }
2718 }
2719 }
2720 break;
2721 case QEMU_OPTION_fda:
2722 case QEMU_OPTION_fdb:
2723 drive_add(optarg, FD_ALIAS, popt->index - QEMU_OPTION_fda);
2724 break;
2725 case QEMU_OPTION_no_fd_bootchk:
2726 fd_bootchk = 0;
2727 break;
2728 case QEMU_OPTION_netdev:
2729 if (net_client_parse(&qemu_netdev_opts, optarg) == -1) {
2730 exit(1);
2731 }
2732 break;
2733 case QEMU_OPTION_net:
2734 if (net_client_parse(&qemu_net_opts, optarg) == -1) {
2735 exit(1);
2736 }
2737 break;
2738 #ifdef CONFIG_SLIRP
2739 case QEMU_OPTION_tftp:
2740 legacy_tftp_prefix = optarg;
2741 break;
2742 case QEMU_OPTION_bootp:
2743 legacy_bootp_filename = optarg;
2744 break;
2745 #ifndef _WIN32
2746 case QEMU_OPTION_smb:
2747 if (net_slirp_smb(optarg) < 0)
2748 exit(1);
2749 break;
2750 #endif
2751 case QEMU_OPTION_redir:
2752 if (net_slirp_redir(optarg) < 0)
2753 exit(1);
2754 break;
2755 #endif
2756 case QEMU_OPTION_bt:
2757 add_device_config(DEV_BT, optarg);
2758 break;
2759 case QEMU_OPTION_audio_help:
2760 if (!(audio_available())) {
2761 printf("Option %s not supported for this target\n", popt->name);
2762 exit(1);
2763 }
2764 AUD_help ();
2765 exit (0);
2766 break;
2767 case QEMU_OPTION_soundhw:
2768 if (!(audio_available())) {
2769 printf("Option %s not supported for this target\n", popt->name);
2770 exit(1);
2771 }
2772 select_soundhw (optarg);
2773 break;
2774 case QEMU_OPTION_h:
2775 help(0);
2776 break;
2777 case QEMU_OPTION_version:
2778 version();
2779 exit(0);
2780 break;
2781 case QEMU_OPTION_m: {
2782 uint64_t value;
2783 char *ptr;
2784
2785 value = strtoul(optarg, &ptr, 10);
2786 switch (*ptr) {
2787 case 0: case 'M': case 'm':
2788 value <<= 20;
2789 break;
2790 case 'G': case 'g':
2791 value <<= 30;
2792 break;
2793 default:
2794 fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
2795 exit(1);
2796 }
2797
2798 /* On 32-bit hosts, QEMU is limited by virtual address space */
2799 if (value > (2047 << 20) && HOST_LONG_BITS == 32) {
2800 fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
2801 exit(1);
2802 }
2803 if (value != (uint64_t)(ram_addr_t)value) {
2804 fprintf(stderr, "qemu: ram size too large\n");
2805 exit(1);
2806 }
2807 ram_size = value;
2808 break;
2809 }
2810 case QEMU_OPTION_mempath:
2811 mem_path = optarg;
2812 break;
2813 #ifdef MAP_POPULATE
2814 case QEMU_OPTION_mem_prealloc:
2815 mem_prealloc = 1;
2816 break;
2817 #endif
2818 case QEMU_OPTION_d:
2819 set_cpu_log(optarg);
2820 break;
2821 case QEMU_OPTION_s:
2822 gdbstub_dev = "tcp::" DEFAULT_GDBSTUB_PORT;
2823 break;
2824 case QEMU_OPTION_gdb:
2825 gdbstub_dev = optarg;
2826 break;
2827 case QEMU_OPTION_L:
2828 data_dir = optarg;
2829 break;
2830 case QEMU_OPTION_bios:
2831 bios_name = optarg;
2832 break;
2833 case QEMU_OPTION_singlestep:
2834 singlestep = 1;
2835 break;
2836 case QEMU_OPTION_S:
2837 autostart = 0;
2838 break;
2839 case QEMU_OPTION_k:
2840 keyboard_layout = optarg;
2841 break;
2842 case QEMU_OPTION_localtime:
2843 rtc_utc = 0;
2844 break;
2845 case QEMU_OPTION_vga:
2846 select_vgahw (optarg);
2847 break;
2848 case QEMU_OPTION_g:
2849 {
2850 const char *p;
2851 int w, h, depth;
2852 p = optarg;
2853 w = strtol(p, (char **)&p, 10);
2854 if (w <= 0) {
2855 graphic_error:
2856 fprintf(stderr, "qemu: invalid resolution or depth\n");
2857 exit(1);
2858 }
2859 if (*p != 'x')
2860 goto graphic_error;
2861 p++;
2862 h = strtol(p, (char **)&p, 10);
2863 if (h <= 0)
2864 goto graphic_error;
2865 if (*p == 'x') {
2866 p++;
2867 depth = strtol(p, (char **)&p, 10);
2868 if (depth != 8 && depth != 15 && depth != 16 &&
2869 depth != 24 && depth != 32)
2870 goto graphic_error;
2871 } else if (*p == '\0') {
2872 depth = graphic_depth;
2873 } else {
2874 goto graphic_error;
2875 }
2876
2877 graphic_width = w;
2878 graphic_height = h;
2879 graphic_depth = depth;
2880 }
2881 break;
2882 case QEMU_OPTION_echr:
2883 {
2884 char *r;
2885 term_escape_char = strtol(optarg, &r, 0);
2886 if (r == optarg)
2887 printf("Bad argument to echr\n");
2888 break;
2889 }
2890 case QEMU_OPTION_monitor:
2891 monitor_parse(optarg, "readline");
2892 default_monitor = 0;
2893 break;
2894 case QEMU_OPTION_qmp:
2895 monitor_parse(optarg, "control");
2896 default_monitor = 0;
2897 break;
2898 case QEMU_OPTION_mon:
2899 opts = qemu_opts_parse(&qemu_mon_opts, optarg, 1);
2900 if (!opts) {
2901 exit(1);
2902 }
2903 default_monitor = 0;
2904 break;
2905 case QEMU_OPTION_chardev:
2906 opts = qemu_opts_parse(&qemu_chardev_opts, optarg, 1);
2907 if (!opts) {
2908 exit(1);
2909 }
2910 break;
2911 #ifdef CONFIG_LINUX
2912 case QEMU_OPTION_fsdev:
2913 opts = qemu_opts_parse(&qemu_fsdev_opts, optarg, 1);
2914 if (!opts) {
2915 fprintf(stderr, "parse error: %s\n", optarg);
2916 exit(1);
2917 }
2918 break;
2919 case QEMU_OPTION_virtfs: {
2920 char *arg_fsdev = NULL;
2921 char *arg_9p = NULL;
2922 int len = 0;
2923
2924 opts = qemu_opts_parse(&qemu_virtfs_opts, optarg, 1);
2925 if (!opts) {
2926 fprintf(stderr, "parse error: %s\n", optarg);
2927 exit(1);
2928 }
2929
2930 len = strlen(",id=,path=");
2931 len += strlen(qemu_opt_get(opts, "fstype"));
2932 len += strlen(qemu_opt_get(opts, "mount_tag"));
2933 len += strlen(qemu_opt_get(opts, "path"));
2934 arg_fsdev = qemu_malloc((len + 1) * sizeof(*arg_fsdev));
2935
2936 if (!arg_fsdev) {
2937 fprintf(stderr, "No memory to parse -fsdev for %s\n",
2938 optarg);
2939 exit(1);
2940 }
2941
2942 sprintf(arg_fsdev, "%s,id=%s,path=%s",
2943 qemu_opt_get(opts, "fstype"),
2944 qemu_opt_get(opts, "mount_tag"),
2945 qemu_opt_get(opts, "path"));
2946
2947 len = strlen("virtio-9p-pci,fsdev=,mount_tag=");
2948 len += 2*strlen(qemu_opt_get(opts, "mount_tag"));
2949 arg_9p = qemu_malloc((len + 1) * sizeof(*arg_9p));
2950
2951 if (!arg_9p) {
2952 fprintf(stderr, "No memory to parse -device for %s\n",
2953 optarg);
2954 exit(1);
2955 }
2956
2957 sprintf(arg_9p, "virtio-9p-pci,fsdev=%s,mount_tag=%s",
2958 qemu_opt_get(opts, "mount_tag"),
2959 qemu_opt_get(opts, "mount_tag"));
2960
2961 if (!qemu_opts_parse(&qemu_fsdev_opts, arg_fsdev, 1)) {
2962 fprintf(stderr, "parse error [fsdev]: %s\n", optarg);
2963 exit(1);
2964 }
2965
2966 if (!qemu_opts_parse(&qemu_device_opts, arg_9p, 1)) {
2967 fprintf(stderr, "parse error [device]: %s\n", optarg);
2968 exit(1);
2969 }
2970
2971 qemu_free(arg_fsdev);
2972 qemu_free(arg_9p);
2973 break;
2974 }
2975 #endif
2976 case QEMU_OPTION_serial:
2977 add_device_config(DEV_SERIAL, optarg);
2978 default_serial = 0;
2979 if (strncmp(optarg, "mon:", 4) == 0) {
2980 default_monitor = 0;
2981 }
2982 break;
2983 case QEMU_OPTION_watchdog:
2984 if (watchdog) {
2985 fprintf(stderr,
2986 "qemu: only one watchdog option may be given\n");
2987 return 1;
2988 }
2989 watchdog = optarg;
2990 break;
2991 case QEMU_OPTION_watchdog_action:
2992 if (select_watchdog_action(optarg) == -1) {
2993 fprintf(stderr, "Unknown -watchdog-action parameter\n");
2994 exit(1);
2995 }
2996 break;
2997 case QEMU_OPTION_virtiocon:
2998 add_device_config(DEV_VIRTCON, optarg);
2999 default_virtcon = 0;
3000 if (strncmp(optarg, "mon:", 4) == 0) {
3001 default_monitor = 0;
3002 }
3003 break;
3004 case QEMU_OPTION_parallel:
3005 add_device_config(DEV_PARALLEL, optarg);
3006 default_parallel = 0;
3007 if (strncmp(optarg, "mon:", 4) == 0) {
3008 default_monitor = 0;
3009 }
3010 break;
3011 case QEMU_OPTION_debugcon:
3012 add_device_config(DEV_DEBUGCON, optarg);
3013 break;
3014 case QEMU_OPTION_loadvm:
3015 loadvm = optarg;
3016 break;
3017 case QEMU_OPTION_full_screen:
3018 full_screen = 1;
3019 break;
3020 #ifdef CONFIG_SDL
3021 case QEMU_OPTION_no_frame:
3022 no_frame = 1;
3023 break;
3024 case QEMU_OPTION_alt_grab:
3025 alt_grab = 1;
3026 break;
3027 case QEMU_OPTION_ctrl_grab:
3028 ctrl_grab = 1;
3029 break;
3030 case QEMU_OPTION_no_quit:
3031 no_quit = 1;
3032 break;
3033 case QEMU_OPTION_sdl:
3034 display_type = DT_SDL;
3035 break;
3036 #endif
3037 case QEMU_OPTION_pidfile:
3038 pid_file = optarg;
3039 break;
3040 case QEMU_OPTION_win2k_hack:
3041 win2k_install_hack = 1;
3042 break;
3043 case QEMU_OPTION_rtc_td_hack:
3044 rtc_td_hack = 1;
3045 break;
3046 case QEMU_OPTION_acpitable:
3047 do_acpitable_option(optarg);
3048 break;
3049 case QEMU_OPTION_smbios:
3050 do_smbios_option(optarg);
3051 break;
3052 case QEMU_OPTION_enable_kvm:
3053 kvm_allowed = 1;
3054 break;
3055 case QEMU_OPTION_usb:
3056 usb_enabled = 1;
3057 break;
3058 case QEMU_OPTION_usbdevice:
3059 usb_enabled = 1;
3060 add_device_config(DEV_USB, optarg);
3061 break;
3062 case QEMU_OPTION_device:
3063 if (!qemu_opts_parse(&qemu_device_opts, optarg, 1)) {
3064 exit(1);
3065 }
3066 break;
3067 case QEMU_OPTION_smp:
3068 smp_parse(optarg);
3069 if (smp_cpus < 1) {
3070 fprintf(stderr, "Invalid number of CPUs\n");
3071 exit(1);
3072 }
3073 if (max_cpus < smp_cpus) {
3074 fprintf(stderr, "maxcpus must be equal to or greater than "
3075 "smp\n");
3076 exit(1);
3077 }
3078 if (max_cpus > 255) {
3079 fprintf(stderr, "Unsupported number of maxcpus\n");
3080 exit(1);
3081 }
3082 break;
3083 case QEMU_OPTION_vnc:
3084 display_type = DT_VNC;
3085 vnc_display = optarg;
3086 break;
3087 case QEMU_OPTION_no_acpi:
3088 acpi_enabled = 0;
3089 break;
3090 case QEMU_OPTION_no_hpet:
3091 no_hpet = 1;
3092 break;
3093 case QEMU_OPTION_balloon:
3094 if (balloon_parse(optarg) < 0) {
3095 fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
3096 exit(1);
3097 }
3098 break;
3099 case QEMU_OPTION_no_reboot:
3100 no_reboot = 1;
3101 break;
3102 case QEMU_OPTION_no_shutdown:
3103 no_shutdown = 1;
3104 break;
3105 case QEMU_OPTION_show_cursor:
3106 cursor_hide = 0;
3107 break;
3108 case QEMU_OPTION_uuid:
3109 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
3110 fprintf(stderr, "Fail to parse UUID string."
3111 " Wrong format.\n");
3112 exit(1);
3113 }
3114 break;
3115 #ifndef _WIN32
3116 case QEMU_OPTION_daemonize:
3117 daemonize = 1;
3118 break;
3119 #endif
3120 case QEMU_OPTION_option_rom:
3121 if (nb_option_roms >= MAX_OPTION_ROMS) {
3122 fprintf(stderr, "Too many option ROMs\n");
3123 exit(1);
3124 }
3125 option_rom[nb_option_roms] = optarg;
3126 nb_option_roms++;
3127 break;
3128 case QEMU_OPTION_semihosting:
3129 semihosting_enabled = 1;
3130 break;
3131 case QEMU_OPTION_name:
3132 qemu_name = qemu_strdup(optarg);
3133 {
3134 char *p = strchr(qemu_name, ',');
3135 if (p != NULL) {
3136 *p++ = 0;
3137 if (strncmp(p, "process=", 8)) {
3138 fprintf(stderr, "Unknown subargument %s to -name", p);
3139 exit(1);
3140 }
3141 p += 8;
3142 set_proc_name(p);
3143 }
3144 }
3145 break;
3146 case QEMU_OPTION_prom_env:
3147 if (nb_prom_envs >= MAX_PROM_ENVS) {
3148 fprintf(stderr, "Too many prom variables\n");
3149 exit(1);
3150 }
3151 prom_envs[nb_prom_envs] = optarg;
3152 nb_prom_envs++;
3153 break;
3154 case QEMU_OPTION_old_param:
3155 old_param = 1;
3156 break;
3157 case QEMU_OPTION_clock:
3158 configure_alarms(optarg);
3159 break;
3160 case QEMU_OPTION_startdate:
3161 configure_rtc_date_offset(optarg, 1);
3162 break;
3163 case QEMU_OPTION_rtc:
3164 opts = qemu_opts_parse(&qemu_rtc_opts, optarg, 0);
3165 if (!opts) {
3166 exit(1);
3167 }
3168 configure_rtc(opts);
3169 break;
3170 case QEMU_OPTION_tb_size:
3171 tb_size = strtol(optarg, NULL, 0);
3172 if (tb_size < 0)
3173 tb_size = 0;
3174 break;
3175 case QEMU_OPTION_icount:
3176 icount_option = optarg;
3177 break;
3178 case QEMU_OPTION_incoming:
3179 incoming = optarg;
3180 break;
3181 case QEMU_OPTION_nodefaults:
3182 default_serial = 0;
3183 default_parallel = 0;
3184 default_virtcon = 0;
3185 default_monitor = 0;
3186 default_vga = 0;
3187 default_net = 0;
3188 default_floppy = 0;
3189 default_cdrom = 0;
3190 default_sdcard = 0;
3191 break;
3192 #ifndef _WIN32
3193 case QEMU_OPTION_chroot:
3194 chroot_dir = optarg;
3195 break;
3196 case QEMU_OPTION_runas:
3197 run_as = optarg;
3198 break;
3199 #endif
3200 case QEMU_OPTION_xen_domid:
3201 if (!(xen_available())) {
3202 printf("Option %s not supported for this target\n", popt->name);
3203 exit(1);
3204 }
3205 xen_domid = atoi(optarg);
3206 break;
3207 case QEMU_OPTION_xen_create:
3208 if (!(xen_available())) {
3209 printf("Option %s not supported for this target\n", popt->name);
3210 exit(1);
3211 }
3212 xen_mode = XEN_CREATE;
3213 break;
3214 case QEMU_OPTION_xen_attach:
3215 if (!(xen_available())) {
3216 printf("Option %s not supported for this target\n", popt->name);
3217 exit(1);
3218 }
3219 xen_mode = XEN_ATTACH;
3220 break;
3221 case QEMU_OPTION_readconfig:
3222 {
3223 int ret = qemu_read_config_file(optarg);
3224 if (ret < 0) {
3225 fprintf(stderr, "read config %s: %s\n", optarg,
3226 strerror(-ret));
3227 exit(1);
3228 }
3229 break;
3230 }
3231 case QEMU_OPTION_writeconfig:
3232 {
3233 FILE *fp;
3234 if (strcmp(optarg, "-") == 0) {
3235 fp = stdout;
3236 } else {
3237 fp = fopen(optarg, "w");
3238 if (fp == NULL) {
3239 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
3240 exit(1);
3241 }
3242 }
3243 qemu_config_write(fp);
3244 fclose(fp);
3245 break;
3246 }
3247 }
3248 }
3249 }
3250 loc_set_none();
3251
3252 /* If no data_dir is specified then try to find it relative to the
3253 executable path. */
3254 if (!data_dir) {
3255 data_dir = find_datadir(argv[0]);
3256 }
3257 /* If all else fails use the install patch specified when building. */
3258 if (!data_dir) {
3259 data_dir = CONFIG_QEMU_DATADIR;
3260 }
3261
3262 /*
3263 * Default to max_cpus = smp_cpus, in case the user doesn't
3264 * specify a max_cpus value.
3265 */
3266 if (!max_cpus)
3267 max_cpus = smp_cpus;
3268
3269 machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
3270 if (smp_cpus > machine->max_cpus) {
3271 fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
3272 "supported by machine `%s' (%d)\n", smp_cpus, machine->name,
3273 machine->max_cpus);
3274 exit(1);
3275 }
3276
3277 qemu_opts_foreach(&qemu_device_opts, default_driver_check, NULL, 0);
3278 qemu_opts_foreach(&qemu_global_opts, default_driver_check, NULL, 0);
3279
3280 if (machine->no_serial) {
3281 default_serial = 0;
3282 }
3283 if (machine->no_parallel) {
3284 default_parallel = 0;
3285 }
3286 if (!machine->use_virtcon) {
3287 default_virtcon = 0;
3288 }
3289 if (machine->no_vga) {
3290 default_vga = 0;
3291 }
3292 if (machine->no_floppy) {
3293 default_floppy = 0;
3294 }
3295 if (machine->no_cdrom) {
3296 default_cdrom = 0;
3297 }
3298 if (machine->no_sdcard) {
3299 default_sdcard = 0;
3300 }
3301
3302 if (display_type == DT_NOGRAPHIC) {
3303 if (default_parallel)
3304 add_device_config(DEV_PARALLEL, "null");
3305 if (default_serial && default_monitor) {
3306 add_device_config(DEV_SERIAL, "mon:stdio");
3307 } else if (default_virtcon && default_monitor) {
3308 add_device_config(DEV_VIRTCON, "mon:stdio");
3309 } else {
3310 if (default_serial)
3311 add_device_config(DEV_SERIAL, "stdio");
3312 if (default_virtcon)
3313 add_device_config(DEV_VIRTCON, "stdio");
3314 if (default_monitor)
3315 monitor_parse("stdio", "readline");
3316 }
3317 } else {
3318 if (default_serial)
3319 add_device_config(DEV_SERIAL, "vc:80Cx24C");
3320 if (default_parallel)
3321 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
3322 if (default_monitor)
3323 monitor_parse("vc:80Cx24C", "readline");
3324 if (default_virtcon)
3325 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
3326 }
3327 if (default_vga)
3328 vga_interface_type = VGA_CIRRUS;
3329
3330 socket_init();
3331
3332 if (qemu_opts_foreach(&qemu_chardev_opts, chardev_init_func, NULL, 1) != 0)
3333 exit(1);
3334 #ifdef CONFIG_LINUX
3335 if (qemu_opts_foreach(&qemu_fsdev_opts, fsdev_init_func, NULL, 1) != 0) {
3336 exit(1);
3337 }
3338 #endif
3339
3340 #ifndef _WIN32
3341 if (daemonize) {
3342 pid_t pid;
3343
3344 if (pipe(fds) == -1)
3345 exit(1);
3346
3347 pid = fork();
3348 if (pid > 0) {
3349 uint8_t status;
3350 ssize_t len;
3351
3352 close(fds[1]);
3353
3354 again:
3355 len = read(fds[0], &status, 1);
3356 if (len == -1 && (errno == EINTR))
3357 goto again;
3358
3359 if (len != 1)
3360 exit(1);
3361 else if (status == 1) {
3362 fprintf(stderr, "Could not acquire pidfile: %s\n", strerror(errno));
3363 exit(1);
3364 } else
3365 exit(0);
3366 } else if (pid < 0)
3367 exit(1);
3368
3369 close(fds[0]);
3370 qemu_set_cloexec(fds[1]);
3371
3372 setsid();
3373
3374 pid = fork();
3375 if (pid > 0)
3376 exit(0);
3377 else if (pid < 0)
3378 exit(1);
3379
3380 umask(027);
3381
3382 signal(SIGTSTP, SIG_IGN);
3383 signal(SIGTTOU, SIG_IGN);
3384 signal(SIGTTIN, SIG_IGN);
3385 }
3386 #endif
3387
3388 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
3389 #ifndef _WIN32
3390 if (daemonize) {
3391 uint8_t status = 1;
3392 if (write(fds[1], &status, 1) != 1) {
3393 perror("daemonize. Writing to pipe\n");
3394 }
3395 } else
3396 #endif
3397 fprintf(stderr, "Could not acquire pid file: %s\n", strerror(errno));
3398 exit(1);
3399 }
3400
3401 if (kvm_allowed) {
3402 int ret = kvm_init(smp_cpus);
3403 if (ret < 0) {
3404 if (!kvm_available()) {
3405 printf("KVM not supported for this target\n");
3406 } else {
3407 fprintf(stderr, "failed to initialize KVM: %s\n", strerror(-ret));
3408 }
3409 exit(1);
3410 }
3411 }
3412
3413 if (qemu_init_main_loop()) {
3414 fprintf(stderr, "qemu_init_main_loop failed\n");
3415 exit(1);
3416 }
3417 linux_boot = (kernel_filename != NULL);
3418
3419 if (!linux_boot && *kernel_cmdline != '\0') {
3420 fprintf(stderr, "-append only allowed with -kernel option\n");
3421 exit(1);
3422 }
3423
3424 if (!linux_boot && initrd_filename != NULL) {
3425 fprintf(stderr, "-initrd only allowed with -kernel option\n");
3426 exit(1);
3427 }
3428
3429 #ifndef _WIN32
3430 /* Win32 doesn't support line-buffering and requires size >= 2 */
3431 setvbuf(stdout, NULL, _IOLBF, 0);
3432 #endif
3433
3434 if (init_timer_alarm() < 0) {
3435 fprintf(stderr, "could not initialize alarm timer\n");
3436 exit(1);
3437 }
3438 configure_icount(icount_option);
3439
3440 if (net_init_clients() < 0) {
3441 exit(1);
3442 }
3443
3444 /* init the bluetooth world */
3445 if (foreach_device_config(DEV_BT, bt_parse))
3446 exit(1);
3447
3448 /* init the memory */
3449 if (ram_size == 0)
3450 ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
3451
3452 /* init the dynamic translator */
3453 cpu_exec_init_all(tb_size * 1024 * 1024);
3454
3455 bdrv_init_with_whitelist();
3456
3457 blk_mig_init();
3458
3459 if (default_cdrom) {
3460 /* we always create the cdrom drive, even if no disk is there */
3461 drive_add(NULL, CDROM_ALIAS);
3462 }
3463
3464 if (default_floppy) {
3465 /* we always create at least one floppy */
3466 drive_add(NULL, FD_ALIAS, 0);
3467 }
3468
3469 if (default_sdcard) {
3470 /* we always create one sd slot, even if no card is in it */
3471 drive_add(NULL, SD_ALIAS);
3472 }
3473
3474 /* open the virtual block devices */
3475 if (snapshot)
3476 qemu_opts_foreach(&qemu_drive_opts, drive_enable_snapshot, NULL, 0);
3477 if (qemu_opts_foreach(&qemu_drive_opts, drive_init_func, machine, 1) != 0)
3478 exit(1);
3479
3480 register_savevm_live("ram", 0, 3, NULL, ram_save_live, NULL,
3481 ram_load, NULL);
3482
3483 if (nb_numa_nodes > 0) {
3484 int i;
3485
3486 if (nb_numa_nodes > smp_cpus) {
3487 nb_numa_nodes = smp_cpus;
3488 }
3489
3490 /* If no memory size if given for any node, assume the default case
3491 * and distribute the available memory equally across all nodes
3492 */
3493 for (i = 0; i < nb_numa_nodes; i++) {
3494 if (node_mem[i] != 0)
3495 break;
3496 }
3497 if (i == nb_numa_nodes) {
3498 uint64_t usedmem = 0;
3499
3500 /* On Linux, the each node's border has to be 8MB aligned,
3501 * the final node gets the rest.
3502 */
3503 for (i = 0; i < nb_numa_nodes - 1; i++) {
3504 node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1);
3505 usedmem += node_mem[i];
3506 }
3507 node_mem[i] = ram_size - usedmem;
3508 }
3509
3510 for (i = 0; i < nb_numa_nodes; i++) {
3511 if (node_cpumask[i] != 0)
3512 break;
3513 }
3514 /* assigning the VCPUs round-robin is easier to implement, guest OSes
3515 * must cope with this anyway, because there are BIOSes out there in
3516 * real machines which also use this scheme.
3517 */
3518 if (i == nb_numa_nodes) {
3519 for (i = 0; i < smp_cpus; i++) {
3520 node_cpumask[i % nb_numa_nodes] |= 1 << i;
3521 }
3522 }
3523 }
3524
3525 if (qemu_opts_foreach(&qemu_mon_opts, mon_init_func, NULL, 1) != 0) {
3526 exit(1);
3527 }
3528
3529 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
3530 exit(1);
3531 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
3532 exit(1);
3533 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
3534 exit(1);
3535 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
3536 exit(1);
3537
3538 module_call_init(MODULE_INIT_DEVICE);
3539
3540 if (qemu_opts_foreach(&qemu_device_opts, device_help_func, NULL, 0) != 0)
3541 exit(0);
3542
3543 if (watchdog) {
3544 i = select_watchdog(watchdog);
3545 if (i > 0)
3546 exit (i == 1 ? 1 : 0);
3547 }
3548
3549 if (machine->compat_props) {
3550 qdev_prop_register_global_list(machine->compat_props);
3551 }
3552 qemu_add_globals();
3553
3554 machine->init(ram_size, boot_devices,
3555 kernel_filename, kernel_cmdline, initrd_filename, cpu_model);
3556
3557 cpu_synchronize_all_post_init();
3558
3559 #ifndef _WIN32
3560 /* must be after terminal init, SDL library changes signal handlers */
3561 sighandler_setup();
3562 #endif
3563
3564 set_numa_modes();
3565
3566 current_machine = machine;
3567
3568 /* init USB devices */
3569 if (usb_enabled) {
3570 if (foreach_device_config(DEV_USB, usb_parse) < 0)
3571 exit(1);
3572 }
3573
3574 /* init generic devices */
3575 if (qemu_opts_foreach(&qemu_device_opts, device_init_func, NULL, 1) != 0)
3576 exit(1);
3577
3578 net_check_clients();
3579
3580 /* just use the first displaystate for the moment */
3581 ds = get_displaystate();
3582
3583 if (display_type == DT_DEFAULT) {
3584 #if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
3585 display_type = DT_SDL;
3586 #else
3587 display_type = DT_VNC;
3588 vnc_display = "localhost:0,to=99";
3589 show_vnc_port = 1;
3590 #endif
3591 }
3592
3593
3594 switch (display_type) {
3595 case DT_NOGRAPHIC:
3596 break;
3597 #if defined(CONFIG_CURSES)
3598 case DT_CURSES:
3599 curses_display_init(ds, full_screen);
3600 break;
3601 #endif
3602 #if defined(CONFIG_SDL)
3603 case DT_SDL:
3604 sdl_display_init(ds, full_screen, no_frame);
3605 break;
3606 #elif defined(CONFIG_COCOA)
3607 case DT_SDL:
3608 cocoa_display_init(ds, full_screen);
3609 break;
3610 #endif
3611 case DT_VNC:
3612 vnc_display_init(ds);
3613 if (vnc_display_open(ds, vnc_display) < 0)
3614 exit(1);
3615
3616 if (show_vnc_port) {
3617 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
3618 }
3619 break;
3620 default:
3621 break;
3622 }
3623 dpy_resize(ds);
3624
3625 dcl = ds->listeners;
3626 while (dcl != NULL) {
3627 if (dcl->dpy_refresh != NULL) {
3628 ds->gui_timer = qemu_new_timer(rt_clock, gui_update, ds);
3629 qemu_mod_timer(ds->gui_timer, qemu_get_clock(rt_clock));
3630 break;
3631 }
3632 dcl = dcl->next;
3633 }
3634
3635 if (display_type == DT_NOGRAPHIC || display_type == DT_VNC) {
3636 nographic_timer = qemu_new_timer(rt_clock, nographic_update, NULL);
3637 qemu_mod_timer(nographic_timer, qemu_get_clock(rt_clock));
3638 }
3639
3640 text_consoles_set_display(ds);
3641
3642 if (gdbstub_dev && gdbserver_start(gdbstub_dev) < 0) {
3643 fprintf(stderr, "qemu: could not open gdbserver on device '%s'\n",
3644 gdbstub_dev);
3645 exit(1);
3646 }
3647
3648 qdev_machine_creation_done();
3649
3650 if (rom_load_all() != 0) {
3651 fprintf(stderr, "rom loading failed\n");
3652 exit(1);
3653 }
3654
3655 qemu_system_reset();
3656 if (loadvm) {
3657 if (load_vmstate(loadvm) < 0) {
3658 autostart = 0;
3659 }
3660 }
3661
3662 if (incoming) {
3663 qemu_start_incoming_migration(incoming);
3664 } else if (autostart) {
3665 vm_start();
3666 }
3667
3668 #ifndef _WIN32
3669 if (daemonize) {
3670 uint8_t status = 0;
3671 ssize_t len;
3672
3673 again1:
3674 len = write(fds[1], &status, 1);
3675 if (len == -1 && (errno == EINTR))
3676 goto again1;
3677
3678 if (len != 1)
3679 exit(1);
3680
3681 if (chdir("/")) {
3682 perror("not able to chdir to /");
3683 exit(1);
3684 }
3685 TFR(fd = qemu_open("/dev/null", O_RDWR));
3686 if (fd == -1)
3687 exit(1);
3688 }
3689
3690 if (run_as) {
3691 pwd = getpwnam(run_as);
3692 if (!pwd) {
3693 fprintf(stderr, "User \"%s\" doesn't exist\n", run_as);
3694 exit(1);
3695 }
3696 }
3697
3698 if (chroot_dir) {
3699 if (chroot(chroot_dir) < 0) {
3700 fprintf(stderr, "chroot failed\n");
3701 exit(1);
3702 }
3703 if (chdir("/")) {
3704 perror("not able to chdir to /");
3705 exit(1);
3706 }
3707 }
3708
3709 if (run_as) {
3710 if (setgid(pwd->pw_gid) < 0) {
3711 fprintf(stderr, "Failed to setgid(%d)\n", pwd->pw_gid);
3712 exit(1);
3713 }
3714 if (setuid(pwd->pw_uid) < 0) {
3715 fprintf(stderr, "Failed to setuid(%d)\n", pwd->pw_uid);
3716 exit(1);
3717 }
3718 if (setuid(0) != -1) {
3719 fprintf(stderr, "Dropping privileges failed\n");
3720 exit(1);
3721 }
3722 }
3723
3724 if (daemonize) {
3725 dup2(fd, 0);
3726 dup2(fd, 1);
3727 dup2(fd, 2);
3728
3729 close(fd);
3730 }
3731 #endif
3732
3733 main_loop();
3734 quit_timers();
3735 net_cleanup();
3736
3737 return 0;
3738 }
Qemu copy for testing