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Fix build when configured with --enable-io-thread
[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.h>
74 #include <netinet/in_systm.h>
75 #include <netinet/ip.h>
76 #include <netinet/ip_icmp.h> // must come after ip.h
77 #include <netinet/udp.h>
78 #include <netinet/tcp.h>
79 #include <net/if.h>
80 #include <syslog.h>
81 #include <stropts.h>
82 /* See MySQL bug #7156 (http://bugs.mysql.com/bug.php?id=7156) for
83 discussion about Solaris header problems */
84 extern int madvise(caddr_t, size_t, int);
85 #endif
86 #endif
87 #endif
88
89 #if defined(__OpenBSD__)
90 #include <util.h>
91 #endif
92
93 #if defined(CONFIG_VDE)
94 #include <libvdeplug.h>
95 #endif
96
97 #ifdef _WIN32
98 #include <windows.h>
99 #endif
100
101 #ifdef CONFIG_SDL
102 #if defined(__APPLE__) || defined(main)
103 #include <SDL.h>
104 int qemu_main(int argc, char **argv, char **envp);
105 int main(int argc, char **argv)
106 {
107 return qemu_main(argc, argv, NULL);
108 }
109 #undef main
110 #define main qemu_main
111 #endif
112 #endif /* CONFIG_SDL */
113
114 #ifdef CONFIG_COCOA
115 #undef main
116 #define main qemu_main
117 #endif /* CONFIG_COCOA */
118
119 #include "hw/hw.h"
120 #include "hw/boards.h"
121 #include "hw/usb.h"
122 #include "hw/pcmcia.h"
123 #include "hw/pc.h"
124 #include "hw/isa.h"
125 #include "hw/baum.h"
126 #include "hw/bt.h"
127 #include "hw/watchdog.h"
128 #include "hw/smbios.h"
129 #include "hw/xen.h"
130 #include "hw/qdev.h"
131 #include "hw/loader.h"
132 #include "bt-host.h"
133 #include "net.h"
134 #include "net/slirp.h"
135 #include "monitor.h"
136 #include "console.h"
137 #include "sysemu.h"
138 #include "gdbstub.h"
139 #include "qemu-timer.h"
140 #include "qemu-char.h"
141 #include "cache-utils.h"
142 #include "block.h"
143 #include "block_int.h"
144 #include "block-migration.h"
145 #include "dma.h"
146 #include "audio/audio.h"
147 #include "migration.h"
148 #include "kvm.h"
149 #include "qemu-option.h"
150 #include "qemu-config.h"
151 #include "qemu-objects.h"
152
153 #include "disas.h"
154
155 #include "qemu_socket.h"
156
157 #include "slirp/libslirp.h"
158
159 #include "qemu-queue.h"
160 #include "cpus.h"
161 #include "arch_init.h"
162
163 //#define DEBUG_NET
164 //#define DEBUG_SLIRP
165
166 #define DEFAULT_RAM_SIZE 128
167
168 #define MAX_VIRTIO_CONSOLES 1
169
170 static const char *data_dir;
171 const char *bios_name = NULL;
172 /* Note: drives_table[MAX_DRIVES] is a dummy block driver if none available
173 to store the VM snapshots */
174 struct drivelist drives = QTAILQ_HEAD_INITIALIZER(drives);
175 struct driveoptlist driveopts = QTAILQ_HEAD_INITIALIZER(driveopts);
176 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
177 DisplayType display_type = DT_DEFAULT;
178 const char* keyboard_layout = NULL;
179 ram_addr_t ram_size;
180 const char *mem_path = NULL;
181 #ifdef MAP_POPULATE
182 int mem_prealloc = 0; /* force preallocation of physical target memory */
183 #endif
184 int nb_nics;
185 NICInfo nd_table[MAX_NICS];
186 int vm_running;
187 int autostart;
188 static int rtc_utc = 1;
189 static int rtc_date_offset = -1; /* -1 means no change */
190 QEMUClock *rtc_clock;
191 int vga_interface_type = VGA_NONE;
192 static int full_screen = 0;
193 #ifdef CONFIG_SDL
194 static int no_frame = 0;
195 #endif
196 int no_quit = 0;
197 CharDriverState *serial_hds[MAX_SERIAL_PORTS];
198 CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
199 CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES];
200 int win2k_install_hack = 0;
201 int rtc_td_hack = 0;
202 int usb_enabled = 0;
203 int singlestep = 0;
204 int smp_cpus = 1;
205 int max_cpus = 0;
206 int smp_cores = 1;
207 int smp_threads = 1;
208 const char *vnc_display;
209 int acpi_enabled = 1;
210 int no_hpet = 0;
211 int fd_bootchk = 1;
212 int no_reboot = 0;
213 int no_shutdown = 0;
214 int cursor_hide = 1;
215 int graphic_rotate = 0;
216 uint8_t irq0override = 1;
217 #ifndef _WIN32
218 int daemonize = 0;
219 #endif
220 const char *watchdog;
221 const char *option_rom[MAX_OPTION_ROMS];
222 int nb_option_roms;
223 int semihosting_enabled = 0;
224 int old_param = 0;
225 const char *qemu_name;
226 int alt_grab = 0;
227 int ctrl_grab = 0;
228 unsigned int nb_prom_envs = 0;
229 const char *prom_envs[MAX_PROM_ENVS];
230 int boot_menu;
231
232 int nb_numa_nodes;
233 uint64_t node_mem[MAX_NODES];
234 uint64_t node_cpumask[MAX_NODES];
235
236 static QEMUTimer *nographic_timer;
237
238 uint8_t qemu_uuid[16];
239
240 static QEMUBootSetHandler *boot_set_handler;
241 static void *boot_set_opaque;
242
243 int kvm_allowed = 0;
244 uint32_t xen_domid;
245 enum xen_mode xen_mode = XEN_EMULATE;
246
247 static int default_serial = 1;
248 static int default_parallel = 1;
249 static int default_virtcon = 1;
250 static int default_monitor = 1;
251 static int default_vga = 1;
252 static int default_floppy = 1;
253 static int default_cdrom = 1;
254 static int default_sdcard = 1;
255
256 static struct {
257 const char *driver;
258 int *flag;
259 } default_list[] = {
260 { .driver = "isa-serial", .flag = &default_serial },
261 { .driver = "isa-parallel", .flag = &default_parallel },
262 { .driver = "isa-fdc", .flag = &default_floppy },
263 { .driver = "ide-drive", .flag = &default_cdrom },
264 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
265 { .driver = "virtio-serial-s390", .flag = &default_virtcon },
266 { .driver = "virtio-serial", .flag = &default_virtcon },
267 { .driver = "VGA", .flag = &default_vga },
268 { .driver = "cirrus-vga", .flag = &default_vga },
269 { .driver = "vmware-svga", .flag = &default_vga },
270 };
271
272 static int default_driver_check(QemuOpts *opts, void *opaque)
273 {
274 const char *driver = qemu_opt_get(opts, "driver");
275 int i;
276
277 if (!driver)
278 return 0;
279 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
280 if (strcmp(default_list[i].driver, driver) != 0)
281 continue;
282 *(default_list[i].flag) = 0;
283 }
284 return 0;
285 }
286
287 /***********************************************************/
288
289 static void set_proc_name(const char *s)
290 {
291 #if defined(__linux__) && defined(PR_SET_NAME)
292 char name[16];
293 if (!s)
294 return;
295 name[sizeof(name) - 1] = 0;
296 strncpy(name, s, sizeof(name));
297 /* Could rewrite argv[0] too, but that's a bit more complicated.
298 This simple way is enough for `top'. */
299 prctl(PR_SET_NAME, name);
300 #endif
301 }
302
303 /***********************************************************/
304 /* real time host monotonic timer */
305
306 /* compute with 96 bit intermediate result: (a*b)/c */
307 uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
308 {
309 union {
310 uint64_t ll;
311 struct {
312 #ifdef HOST_WORDS_BIGENDIAN
313 uint32_t high, low;
314 #else
315 uint32_t low, high;
316 #endif
317 } l;
318 } u, res;
319 uint64_t rl, rh;
320
321 u.ll = a;
322 rl = (uint64_t)u.l.low * (uint64_t)b;
323 rh = (uint64_t)u.l.high * (uint64_t)b;
324 rh += (rl >> 32);
325 res.l.high = rh / c;
326 res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
327 return res.ll;
328 }
329
330 /***********************************************************/
331 /* host time/date access */
332 void qemu_get_timedate(struct tm *tm, int offset)
333 {
334 time_t ti;
335 struct tm *ret;
336
337 time(&ti);
338 ti += offset;
339 if (rtc_date_offset == -1) {
340 if (rtc_utc)
341 ret = gmtime(&ti);
342 else
343 ret = localtime(&ti);
344 } else {
345 ti -= rtc_date_offset;
346 ret = gmtime(&ti);
347 }
348
349 memcpy(tm, ret, sizeof(struct tm));
350 }
351
352 int qemu_timedate_diff(struct tm *tm)
353 {
354 time_t seconds;
355
356 if (rtc_date_offset == -1)
357 if (rtc_utc)
358 seconds = mktimegm(tm);
359 else
360 seconds = mktime(tm);
361 else
362 seconds = mktimegm(tm) + rtc_date_offset;
363
364 return seconds - time(NULL);
365 }
366
367 void rtc_change_mon_event(struct tm *tm)
368 {
369 QObject *data;
370
371 data = qobject_from_jsonf("{ 'offset': %d }", qemu_timedate_diff(tm));
372 monitor_protocol_event(QEVENT_RTC_CHANGE, data);
373 qobject_decref(data);
374 }
375
376 static void configure_rtc_date_offset(const char *startdate, int legacy)
377 {
378 time_t rtc_start_date;
379 struct tm tm;
380
381 if (!strcmp(startdate, "now") && legacy) {
382 rtc_date_offset = -1;
383 } else {
384 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
385 &tm.tm_year,
386 &tm.tm_mon,
387 &tm.tm_mday,
388 &tm.tm_hour,
389 &tm.tm_min,
390 &tm.tm_sec) == 6) {
391 /* OK */
392 } else if (sscanf(startdate, "%d-%d-%d",
393 &tm.tm_year,
394 &tm.tm_mon,
395 &tm.tm_mday) == 3) {
396 tm.tm_hour = 0;
397 tm.tm_min = 0;
398 tm.tm_sec = 0;
399 } else {
400 goto date_fail;
401 }
402 tm.tm_year -= 1900;
403 tm.tm_mon--;
404 rtc_start_date = mktimegm(&tm);
405 if (rtc_start_date == -1) {
406 date_fail:
407 fprintf(stderr, "Invalid date format. Valid formats are:\n"
408 "'2006-06-17T16:01:21' or '2006-06-17'\n");
409 exit(1);
410 }
411 rtc_date_offset = time(NULL) - rtc_start_date;
412 }
413 }
414
415 static void configure_rtc(QemuOpts *opts)
416 {
417 const char *value;
418
419 value = qemu_opt_get(opts, "base");
420 if (value) {
421 if (!strcmp(value, "utc")) {
422 rtc_utc = 1;
423 } else if (!strcmp(value, "localtime")) {
424 rtc_utc = 0;
425 } else {
426 configure_rtc_date_offset(value, 0);
427 }
428 }
429 value = qemu_opt_get(opts, "clock");
430 if (value) {
431 if (!strcmp(value, "host")) {
432 rtc_clock = host_clock;
433 } else if (!strcmp(value, "vm")) {
434 rtc_clock = vm_clock;
435 } else {
436 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
437 exit(1);
438 }
439 }
440 value = qemu_opt_get(opts, "driftfix");
441 if (value) {
442 if (!strcmp(value, "slew")) {
443 rtc_td_hack = 1;
444 } else if (!strcmp(value, "none")) {
445 rtc_td_hack = 0;
446 } else {
447 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
448 exit(1);
449 }
450 }
451 }
452
453 /***********************************************************/
454 /* Bluetooth support */
455 static int nb_hcis;
456 static int cur_hci;
457 static struct HCIInfo *hci_table[MAX_NICS];
458
459 static struct bt_vlan_s {
460 struct bt_scatternet_s net;
461 int id;
462 struct bt_vlan_s *next;
463 } *first_bt_vlan;
464
465 /* find or alloc a new bluetooth "VLAN" */
466 static struct bt_scatternet_s *qemu_find_bt_vlan(int id)
467 {
468 struct bt_vlan_s **pvlan, *vlan;
469 for (vlan = first_bt_vlan; vlan != NULL; vlan = vlan->next) {
470 if (vlan->id == id)
471 return &vlan->net;
472 }
473 vlan = qemu_mallocz(sizeof(struct bt_vlan_s));
474 vlan->id = id;
475 pvlan = &first_bt_vlan;
476 while (*pvlan != NULL)
477 pvlan = &(*pvlan)->next;
478 *pvlan = vlan;
479 return &vlan->net;
480 }
481
482 static void null_hci_send(struct HCIInfo *hci, const uint8_t *data, int len)
483 {
484 }
485
486 static int null_hci_addr_set(struct HCIInfo *hci, const uint8_t *bd_addr)
487 {
488 return -ENOTSUP;
489 }
490
491 static struct HCIInfo null_hci = {
492 .cmd_send = null_hci_send,
493 .sco_send = null_hci_send,
494 .acl_send = null_hci_send,
495 .bdaddr_set = null_hci_addr_set,
496 };
497
498 struct HCIInfo *qemu_next_hci(void)
499 {
500 if (cur_hci == nb_hcis)
501 return &null_hci;
502
503 return hci_table[cur_hci++];
504 }
505
506 static struct HCIInfo *hci_init(const char *str)
507 {
508 char *endp;
509 struct bt_scatternet_s *vlan = 0;
510
511 if (!strcmp(str, "null"))
512 /* null */
513 return &null_hci;
514 else if (!strncmp(str, "host", 4) && (str[4] == '\0' || str[4] == ':'))
515 /* host[:hciN] */
516 return bt_host_hci(str[4] ? str + 5 : "hci0");
517 else if (!strncmp(str, "hci", 3)) {
518 /* hci[,vlan=n] */
519 if (str[3]) {
520 if (!strncmp(str + 3, ",vlan=", 6)) {
521 vlan = qemu_find_bt_vlan(strtol(str + 9, &endp, 0));
522 if (*endp)
523 vlan = 0;
524 }
525 } else
526 vlan = qemu_find_bt_vlan(0);
527 if (vlan)
528 return bt_new_hci(vlan);
529 }
530
531 fprintf(stderr, "qemu: Unknown bluetooth HCI `%s'.\n", str);
532
533 return 0;
534 }
535
536 static int bt_hci_parse(const char *str)
537 {
538 struct HCIInfo *hci;
539 bdaddr_t bdaddr;
540
541 if (nb_hcis >= MAX_NICS) {
542 fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
543 return -1;
544 }
545
546 hci = hci_init(str);
547 if (!hci)
548 return -1;
549
550 bdaddr.b[0] = 0x52;
551 bdaddr.b[1] = 0x54;
552 bdaddr.b[2] = 0x00;
553 bdaddr.b[3] = 0x12;
554 bdaddr.b[4] = 0x34;
555 bdaddr.b[5] = 0x56 + nb_hcis;
556 hci->bdaddr_set(hci, bdaddr.b);
557
558 hci_table[nb_hcis++] = hci;
559
560 return 0;
561 }
562
563 static void bt_vhci_add(int vlan_id)
564 {
565 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
566
567 if (!vlan->slave)
568 fprintf(stderr, "qemu: warning: adding a VHCI to "
569 "an empty scatternet %i\n", vlan_id);
570
571 bt_vhci_init(bt_new_hci(vlan));
572 }
573
574 static struct bt_device_s *bt_device_add(const char *opt)
575 {
576 struct bt_scatternet_s *vlan;
577 int vlan_id = 0;
578 char *endp = strstr(opt, ",vlan=");
579 int len = (endp ? endp - opt : strlen(opt)) + 1;
580 char devname[10];
581
582 pstrcpy(devname, MIN(sizeof(devname), len), opt);
583
584 if (endp) {
585 vlan_id = strtol(endp + 6, &endp, 0);
586 if (*endp) {
587 fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
588 return 0;
589 }
590 }
591
592 vlan = qemu_find_bt_vlan(vlan_id);
593
594 if (!vlan->slave)
595 fprintf(stderr, "qemu: warning: adding a slave device to "
596 "an empty scatternet %i\n", vlan_id);
597
598 if (!strcmp(devname, "keyboard"))
599 return bt_keyboard_init(vlan);
600
601 fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
602 return 0;
603 }
604
605 static int bt_parse(const char *opt)
606 {
607 const char *endp, *p;
608 int vlan;
609
610 if (strstart(opt, "hci", &endp)) {
611 if (!*endp || *endp == ',') {
612 if (*endp)
613 if (!strstart(endp, ",vlan=", 0))
614 opt = endp + 1;
615
616 return bt_hci_parse(opt);
617 }
618 } else if (strstart(opt, "vhci", &endp)) {
619 if (!*endp || *endp == ',') {
620 if (*endp) {
621 if (strstart(endp, ",vlan=", &p)) {
622 vlan = strtol(p, (char **) &endp, 0);
623 if (*endp) {
624 fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
625 return 1;
626 }
627 } else {
628 fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1);
629 return 1;
630 }
631 } else
632 vlan = 0;
633
634 bt_vhci_add(vlan);
635 return 0;
636 }
637 } else if (strstart(opt, "device:", &endp))
638 return !bt_device_add(endp);
639
640 fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
641 return 1;
642 }
643
644 /***********************************************************/
645 /* QEMU Block devices */
646
647 #define HD_ALIAS "index=%d,media=disk"
648 #define CDROM_ALIAS "index=2,media=cdrom"
649 #define FD_ALIAS "index=%d,if=floppy"
650 #define PFLASH_ALIAS "if=pflash"
651 #define MTD_ALIAS "if=mtd"
652 #define SD_ALIAS "index=0,if=sd"
653
654 QemuOpts *drive_add(const char *file, const char *fmt, ...)
655 {
656 va_list ap;
657 char optstr[1024];
658 QemuOpts *opts;
659
660 va_start(ap, fmt);
661 vsnprintf(optstr, sizeof(optstr), fmt, ap);
662 va_end(ap);
663
664 opts = qemu_opts_parse(&qemu_drive_opts, optstr, 0);
665 if (!opts) {
666 fprintf(stderr, "%s: huh? duplicate? (%s)\n",
667 __FUNCTION__, optstr);
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 cache;
789 int aio = 0;
790 int ro = 0;
791 int bdrv_flags;
792 int on_read_error, on_write_error;
793 const char *devaddr;
794 DriveInfo *dinfo;
795 int snapshot = 0;
796
797 *fatal_error = 1;
798
799 translation = BIOS_ATA_TRANSLATION_AUTO;
800 cache = 1;
801
802 if (machine && machine->use_scsi) {
803 type = IF_SCSI;
804 max_devs = MAX_SCSI_DEVS;
805 pstrcpy(devname, sizeof(devname), "scsi");
806 } else {
807 type = IF_IDE;
808 max_devs = MAX_IDE_DEVS;
809 pstrcpy(devname, sizeof(devname), "ide");
810 }
811 media = MEDIA_DISK;
812
813 /* extract parameters */
814 bus_id = qemu_opt_get_number(opts, "bus", 0);
815 unit_id = qemu_opt_get_number(opts, "unit", -1);
816 index = qemu_opt_get_number(opts, "index", -1);
817
818 cyls = qemu_opt_get_number(opts, "cyls", 0);
819 heads = qemu_opt_get_number(opts, "heads", 0);
820 secs = qemu_opt_get_number(opts, "secs", 0);
821
822 snapshot = qemu_opt_get_bool(opts, "snapshot", 0);
823 ro = qemu_opt_get_bool(opts, "readonly", 0);
824
825 file = qemu_opt_get(opts, "file");
826 serial = qemu_opt_get(opts, "serial");
827
828 if ((buf = qemu_opt_get(opts, "if")) != NULL) {
829 pstrcpy(devname, sizeof(devname), buf);
830 if (!strcmp(buf, "ide")) {
831 type = IF_IDE;
832 max_devs = MAX_IDE_DEVS;
833 } else if (!strcmp(buf, "scsi")) {
834 type = IF_SCSI;
835 max_devs = MAX_SCSI_DEVS;
836 } else if (!strcmp(buf, "floppy")) {
837 type = IF_FLOPPY;
838 max_devs = 0;
839 } else if (!strcmp(buf, "pflash")) {
840 type = IF_PFLASH;
841 max_devs = 0;
842 } else if (!strcmp(buf, "mtd")) {
843 type = IF_MTD;
844 max_devs = 0;
845 } else if (!strcmp(buf, "sd")) {
846 type = IF_SD;
847 max_devs = 0;
848 } else if (!strcmp(buf, "virtio")) {
849 type = IF_VIRTIO;
850 max_devs = 0;
851 } else if (!strcmp(buf, "xen")) {
852 type = IF_XEN;
853 max_devs = 0;
854 } else if (!strcmp(buf, "none")) {
855 type = IF_NONE;
856 max_devs = 0;
857 } else {
858 fprintf(stderr, "qemu: unsupported bus type '%s'\n", buf);
859 return NULL;
860 }
861 }
862
863 if (cyls || heads || secs) {
864 if (cyls < 1 || (type == IF_IDE && cyls > 16383)) {
865 fprintf(stderr, "qemu: '%s' invalid physical cyls number\n", buf);
866 return NULL;
867 }
868 if (heads < 1 || (type == IF_IDE && heads > 16)) {
869 fprintf(stderr, "qemu: '%s' invalid physical heads number\n", buf);
870 return NULL;
871 }
872 if (secs < 1 || (type == IF_IDE && secs > 63)) {
873 fprintf(stderr, "qemu: '%s' invalid physical secs number\n", buf);
874 return NULL;
875 }
876 }
877
878 if ((buf = qemu_opt_get(opts, "trans")) != NULL) {
879 if (!cyls) {
880 fprintf(stderr,
881 "qemu: '%s' trans must be used with cyls,heads and secs\n",
882 buf);
883 return NULL;
884 }
885 if (!strcmp(buf, "none"))
886 translation = BIOS_ATA_TRANSLATION_NONE;
887 else if (!strcmp(buf, "lba"))
888 translation = BIOS_ATA_TRANSLATION_LBA;
889 else if (!strcmp(buf, "auto"))
890 translation = BIOS_ATA_TRANSLATION_AUTO;
891 else {
892 fprintf(stderr, "qemu: '%s' invalid translation type\n", buf);
893 return NULL;
894 }
895 }
896
897 if ((buf = qemu_opt_get(opts, "media")) != NULL) {
898 if (!strcmp(buf, "disk")) {
899 media = MEDIA_DISK;
900 } else if (!strcmp(buf, "cdrom")) {
901 if (cyls || secs || heads) {
902 fprintf(stderr,
903 "qemu: '%s' invalid physical CHS format\n", buf);
904 return NULL;
905 }
906 media = MEDIA_CDROM;
907 } else {
908 fprintf(stderr, "qemu: '%s' invalid media\n", buf);
909 return NULL;
910 }
911 }
912
913 if ((buf = qemu_opt_get(opts, "cache")) != NULL) {
914 if (!strcmp(buf, "off") || !strcmp(buf, "none"))
915 cache = 0;
916 else if (!strcmp(buf, "writethrough"))
917 cache = 1;
918 else if (!strcmp(buf, "writeback"))
919 cache = 2;
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, "threads"))
929 aio = 0;
930 else if (!strcmp(buf, "native"))
931 aio = 1;
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) {
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) {
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 bdrv_flags = 0;
1107 if (snapshot) {
1108 bdrv_flags |= BDRV_O_SNAPSHOT;
1109 cache = 2; /* always use write-back with snapshot */
1110 }
1111 if (cache == 0) /* no caching */
1112 bdrv_flags |= BDRV_O_NOCACHE;
1113 else if (cache == 2) /* write-back */
1114 bdrv_flags |= BDRV_O_CACHE_WB;
1115
1116 if (aio == 1) {
1117 bdrv_flags |= BDRV_O_NATIVE_AIO;
1118 } else {
1119 bdrv_flags &= ~BDRV_O_NATIVE_AIO;
1120 }
1121
1122 if (media == MEDIA_CDROM) {
1123 /* CDROM is fine for any interface, don't check. */
1124 ro = 1;
1125 } else if (ro == 1) {
1126 if (type != IF_SCSI && type != IF_VIRTIO && type != IF_FLOPPY) {
1127 fprintf(stderr, "qemu: readonly flag not supported for drive with this interface\n");
1128 return NULL;
1129 }
1130 }
1131
1132 bdrv_flags |= ro ? 0 : BDRV_O_RDWR;
1133
1134 if (bdrv_open2(dinfo->bdrv, file, bdrv_flags, drv) < 0) {
1135 fprintf(stderr, "qemu: could not open disk image %s: %s\n",
1136 file, strerror(errno));
1137 return NULL;
1138 }
1139
1140 if (bdrv_key_required(dinfo->bdrv))
1141 autostart = 0;
1142 *fatal_error = 0;
1143 return dinfo;
1144 }
1145
1146 static int drive_init_func(QemuOpts *opts, void *opaque)
1147 {
1148 QEMUMachine *machine = opaque;
1149 int fatal_error = 0;
1150
1151 if (drive_init(opts, machine, &fatal_error) == NULL) {
1152 if (fatal_error)
1153 return 1;
1154 }
1155 return 0;
1156 }
1157
1158 static int drive_enable_snapshot(QemuOpts *opts, void *opaque)
1159 {
1160 if (NULL == qemu_opt_get(opts, "snapshot")) {
1161 qemu_opt_set(opts, "snapshot", "on");
1162 }
1163 return 0;
1164 }
1165
1166 void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
1167 {
1168 boot_set_handler = func;
1169 boot_set_opaque = opaque;
1170 }
1171
1172 int qemu_boot_set(const char *boot_devices)
1173 {
1174 if (!boot_set_handler) {
1175 return -EINVAL;
1176 }
1177 return boot_set_handler(boot_set_opaque, boot_devices);
1178 }
1179
1180 static void validate_bootdevices(char *devices)
1181 {
1182 /* We just do some generic consistency checks */
1183 const char *p;
1184 int bitmap = 0;
1185
1186 for (p = devices; *p != '\0'; p++) {
1187 /* Allowed boot devices are:
1188 * a-b: floppy disk drives
1189 * c-f: IDE disk drives
1190 * g-m: machine implementation dependant drives
1191 * n-p: network devices
1192 * It's up to each machine implementation to check if the given boot
1193 * devices match the actual hardware implementation and firmware
1194 * features.
1195 */
1196 if (*p < 'a' || *p > 'p') {
1197 fprintf(stderr, "Invalid boot device '%c'\n", *p);
1198 exit(1);
1199 }
1200 if (bitmap & (1 << (*p - 'a'))) {
1201 fprintf(stderr, "Boot device '%c' was given twice\n", *p);
1202 exit(1);
1203 }
1204 bitmap |= 1 << (*p - 'a');
1205 }
1206 }
1207
1208 static void restore_boot_devices(void *opaque)
1209 {
1210 char *standard_boot_devices = opaque;
1211
1212 qemu_boot_set(standard_boot_devices);
1213
1214 qemu_unregister_reset(restore_boot_devices, standard_boot_devices);
1215 qemu_free(standard_boot_devices);
1216 }
1217
1218 static void numa_add(const char *optarg)
1219 {
1220 char option[128];
1221 char *endptr;
1222 unsigned long long value, endvalue;
1223 int nodenr;
1224
1225 optarg = get_opt_name(option, 128, optarg, ',') + 1;
1226 if (!strcmp(option, "node")) {
1227 if (get_param_value(option, 128, "nodeid", optarg) == 0) {
1228 nodenr = nb_numa_nodes;
1229 } else {
1230 nodenr = strtoull(option, NULL, 10);
1231 }
1232
1233 if (get_param_value(option, 128, "mem", optarg) == 0) {
1234 node_mem[nodenr] = 0;
1235 } else {
1236 value = strtoull(option, &endptr, 0);
1237 switch (*endptr) {
1238 case 0: case 'M': case 'm':
1239 value <<= 20;
1240 break;
1241 case 'G': case 'g':
1242 value <<= 30;
1243 break;
1244 }
1245 node_mem[nodenr] = value;
1246 }
1247 if (get_param_value(option, 128, "cpus", optarg) == 0) {
1248 node_cpumask[nodenr] = 0;
1249 } else {
1250 value = strtoull(option, &endptr, 10);
1251 if (value >= 64) {
1252 value = 63;
1253 fprintf(stderr, "only 64 CPUs in NUMA mode supported.\n");
1254 } else {
1255 if (*endptr == '-') {
1256 endvalue = strtoull(endptr+1, &endptr, 10);
1257 if (endvalue >= 63) {
1258 endvalue = 62;
1259 fprintf(stderr,
1260 "only 63 CPUs in NUMA mode supported.\n");
1261 }
1262 value = (2ULL << endvalue) - (1ULL << value);
1263 } else {
1264 value = 1ULL << value;
1265 }
1266 }
1267 node_cpumask[nodenr] = value;
1268 }
1269 nb_numa_nodes++;
1270 }
1271 return;
1272 }
1273
1274 static void smp_parse(const char *optarg)
1275 {
1276 int smp, sockets = 0, threads = 0, cores = 0;
1277 char *endptr;
1278 char option[128];
1279
1280 smp = strtoul(optarg, &endptr, 10);
1281 if (endptr != optarg) {
1282 if (*endptr == ',') {
1283 endptr++;
1284 }
1285 }
1286 if (get_param_value(option, 128, "sockets", endptr) != 0)
1287 sockets = strtoull(option, NULL, 10);
1288 if (get_param_value(option, 128, "cores", endptr) != 0)
1289 cores = strtoull(option, NULL, 10);
1290 if (get_param_value(option, 128, "threads", endptr) != 0)
1291 threads = strtoull(option, NULL, 10);
1292 if (get_param_value(option, 128, "maxcpus", endptr) != 0)
1293 max_cpus = strtoull(option, NULL, 10);
1294
1295 /* compute missing values, prefer sockets over cores over threads */
1296 if (smp == 0 || sockets == 0) {
1297 sockets = sockets > 0 ? sockets : 1;
1298 cores = cores > 0 ? cores : 1;
1299 threads = threads > 0 ? threads : 1;
1300 if (smp == 0) {
1301 smp = cores * threads * sockets;
1302 }
1303 } else {
1304 if (cores == 0) {
1305 threads = threads > 0 ? threads : 1;
1306 cores = smp / (sockets * threads);
1307 } else {
1308 if (sockets) {
1309 threads = smp / (cores * sockets);
1310 }
1311 }
1312 }
1313 smp_cpus = smp;
1314 smp_cores = cores > 0 ? cores : 1;
1315 smp_threads = threads > 0 ? threads : 1;
1316 if (max_cpus == 0)
1317 max_cpus = smp_cpus;
1318 }
1319
1320 /***********************************************************/
1321 /* USB devices */
1322
1323 static int usb_device_add(const char *devname, int is_hotplug)
1324 {
1325 const char *p;
1326 USBDevice *dev = NULL;
1327
1328 if (!usb_enabled)
1329 return -1;
1330
1331 /* drivers with .usbdevice_name entry in USBDeviceInfo */
1332 dev = usbdevice_create(devname);
1333 if (dev)
1334 goto done;
1335
1336 /* the other ones */
1337 if (strstart(devname, "host:", &p)) {
1338 dev = usb_host_device_open(p);
1339 } else if (!strcmp(devname, "bt") || strstart(devname, "bt:", &p)) {
1340 dev = usb_bt_init(devname[2] ? hci_init(p) :
1341 bt_new_hci(qemu_find_bt_vlan(0)));
1342 } else {
1343 return -1;
1344 }
1345 if (!dev)
1346 return -1;
1347
1348 done:
1349 return 0;
1350 }
1351
1352 static int usb_device_del(const char *devname)
1353 {
1354 int bus_num, addr;
1355 const char *p;
1356
1357 if (strstart(devname, "host:", &p))
1358 return usb_host_device_close(p);
1359
1360 if (!usb_enabled)
1361 return -1;
1362
1363 p = strchr(devname, '.');
1364 if (!p)
1365 return -1;
1366 bus_num = strtoul(devname, NULL, 0);
1367 addr = strtoul(p + 1, NULL, 0);
1368
1369 return usb_device_delete_addr(bus_num, addr);
1370 }
1371
1372 static int usb_parse(const char *cmdline)
1373 {
1374 int r;
1375 r = usb_device_add(cmdline, 0);
1376 if (r < 0) {
1377 fprintf(stderr, "qemu: could not add USB device '%s'\n", cmdline);
1378 }
1379 return r;
1380 }
1381
1382 void do_usb_add(Monitor *mon, const QDict *qdict)
1383 {
1384 const char *devname = qdict_get_str(qdict, "devname");
1385 if (usb_device_add(devname, 1) < 0) {
1386 error_report("could not add USB device '%s'", devname);
1387 }
1388 }
1389
1390 void do_usb_del(Monitor *mon, const QDict *qdict)
1391 {
1392 const char *devname = qdict_get_str(qdict, "devname");
1393 if (usb_device_del(devname) < 0) {
1394 error_report("could not delete USB device '%s'", devname);
1395 }
1396 }
1397
1398 /***********************************************************/
1399 /* PCMCIA/Cardbus */
1400
1401 static struct pcmcia_socket_entry_s {
1402 PCMCIASocket *socket;
1403 struct pcmcia_socket_entry_s *next;
1404 } *pcmcia_sockets = 0;
1405
1406 void pcmcia_socket_register(PCMCIASocket *socket)
1407 {
1408 struct pcmcia_socket_entry_s *entry;
1409
1410 entry = qemu_malloc(sizeof(struct pcmcia_socket_entry_s));
1411 entry->socket = socket;
1412 entry->next = pcmcia_sockets;
1413 pcmcia_sockets = entry;
1414 }
1415
1416 void pcmcia_socket_unregister(PCMCIASocket *socket)
1417 {
1418 struct pcmcia_socket_entry_s *entry, **ptr;
1419
1420 ptr = &pcmcia_sockets;
1421 for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
1422 if (entry->socket == socket) {
1423 *ptr = entry->next;
1424 qemu_free(entry);
1425 }
1426 }
1427
1428 void pcmcia_info(Monitor *mon)
1429 {
1430 struct pcmcia_socket_entry_s *iter;
1431
1432 if (!pcmcia_sockets)
1433 monitor_printf(mon, "No PCMCIA sockets\n");
1434
1435 for (iter = pcmcia_sockets; iter; iter = iter->next)
1436 monitor_printf(mon, "%s: %s\n", iter->socket->slot_string,
1437 iter->socket->attached ? iter->socket->card_string :
1438 "Empty");
1439 }
1440
1441 /***********************************************************/
1442 /* I/O handling */
1443
1444 typedef struct IOHandlerRecord {
1445 int fd;
1446 IOCanReadHandler *fd_read_poll;
1447 IOHandler *fd_read;
1448 IOHandler *fd_write;
1449 int deleted;
1450 void *opaque;
1451 /* temporary data */
1452 struct pollfd *ufd;
1453 QLIST_ENTRY(IOHandlerRecord) next;
1454 } IOHandlerRecord;
1455
1456 static QLIST_HEAD(, IOHandlerRecord) io_handlers =
1457 QLIST_HEAD_INITIALIZER(io_handlers);
1458
1459
1460 /* XXX: fd_read_poll should be suppressed, but an API change is
1461 necessary in the character devices to suppress fd_can_read(). */
1462 int qemu_set_fd_handler2(int fd,
1463 IOCanReadHandler *fd_read_poll,
1464 IOHandler *fd_read,
1465 IOHandler *fd_write,
1466 void *opaque)
1467 {
1468 IOHandlerRecord *ioh;
1469
1470 if (!fd_read && !fd_write) {
1471 QLIST_FOREACH(ioh, &io_handlers, next) {
1472 if (ioh->fd == fd) {
1473 ioh->deleted = 1;
1474 break;
1475 }
1476 }
1477 } else {
1478 QLIST_FOREACH(ioh, &io_handlers, next) {
1479 if (ioh->fd == fd)
1480 goto found;
1481 }
1482 ioh = qemu_mallocz(sizeof(IOHandlerRecord));
1483 QLIST_INSERT_HEAD(&io_handlers, ioh, next);
1484 found:
1485 ioh->fd = fd;
1486 ioh->fd_read_poll = fd_read_poll;
1487 ioh->fd_read = fd_read;
1488 ioh->fd_write = fd_write;
1489 ioh->opaque = opaque;
1490 ioh->deleted = 0;
1491 }
1492 return 0;
1493 }
1494
1495 int qemu_set_fd_handler(int fd,
1496 IOHandler *fd_read,
1497 IOHandler *fd_write,
1498 void *opaque)
1499 {
1500 return qemu_set_fd_handler2(fd, NULL, fd_read, fd_write, opaque);
1501 }
1502
1503 #ifdef _WIN32
1504 /***********************************************************/
1505 /* Polling handling */
1506
1507 typedef struct PollingEntry {
1508 PollingFunc *func;
1509 void *opaque;
1510 struct PollingEntry *next;
1511 } PollingEntry;
1512
1513 static PollingEntry *first_polling_entry;
1514
1515 int qemu_add_polling_cb(PollingFunc *func, void *opaque)
1516 {
1517 PollingEntry **ppe, *pe;
1518 pe = qemu_mallocz(sizeof(PollingEntry));
1519 pe->func = func;
1520 pe->opaque = opaque;
1521 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next);
1522 *ppe = pe;
1523 return 0;
1524 }
1525
1526 void qemu_del_polling_cb(PollingFunc *func, void *opaque)
1527 {
1528 PollingEntry **ppe, *pe;
1529 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next) {
1530 pe = *ppe;
1531 if (pe->func == func && pe->opaque == opaque) {
1532 *ppe = pe->next;
1533 qemu_free(pe);
1534 break;
1535 }
1536 }
1537 }
1538
1539 /***********************************************************/
1540 /* Wait objects support */
1541 typedef struct WaitObjects {
1542 int num;
1543 HANDLE events[MAXIMUM_WAIT_OBJECTS + 1];
1544 WaitObjectFunc *func[MAXIMUM_WAIT_OBJECTS + 1];
1545 void *opaque[MAXIMUM_WAIT_OBJECTS + 1];
1546 } WaitObjects;
1547
1548 static WaitObjects wait_objects = {0};
1549
1550 int qemu_add_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
1551 {
1552 WaitObjects *w = &wait_objects;
1553
1554 if (w->num >= MAXIMUM_WAIT_OBJECTS)
1555 return -1;
1556 w->events[w->num] = handle;
1557 w->func[w->num] = func;
1558 w->opaque[w->num] = opaque;
1559 w->num++;
1560 return 0;
1561 }
1562
1563 void qemu_del_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
1564 {
1565 int i, found;
1566 WaitObjects *w = &wait_objects;
1567
1568 found = 0;
1569 for (i = 0; i < w->num; i++) {
1570 if (w->events[i] == handle)
1571 found = 1;
1572 if (found) {
1573 w->events[i] = w->events[i + 1];
1574 w->func[i] = w->func[i + 1];
1575 w->opaque[i] = w->opaque[i + 1];
1576 }
1577 }
1578 if (found)
1579 w->num--;
1580 }
1581 #endif
1582
1583 /***********************************************************/
1584 /* machine registration */
1585
1586 static QEMUMachine *first_machine = NULL;
1587 QEMUMachine *current_machine = NULL;
1588
1589 int qemu_register_machine(QEMUMachine *m)
1590 {
1591 QEMUMachine **pm;
1592 pm = &first_machine;
1593 while (*pm != NULL)
1594 pm = &(*pm)->next;
1595 m->next = NULL;
1596 *pm = m;
1597 return 0;
1598 }
1599
1600 static QEMUMachine *find_machine(const char *name)
1601 {
1602 QEMUMachine *m;
1603
1604 for(m = first_machine; m != NULL; m = m->next) {
1605 if (!strcmp(m->name, name))
1606 return m;
1607 if (m->alias && !strcmp(m->alias, name))
1608 return m;
1609 }
1610 return NULL;
1611 }
1612
1613 static QEMUMachine *find_default_machine(void)
1614 {
1615 QEMUMachine *m;
1616
1617 for(m = first_machine; m != NULL; m = m->next) {
1618 if (m->is_default) {
1619 return m;
1620 }
1621 }
1622 return NULL;
1623 }
1624
1625 /***********************************************************/
1626 /* main execution loop */
1627
1628 static void gui_update(void *opaque)
1629 {
1630 uint64_t interval = GUI_REFRESH_INTERVAL;
1631 DisplayState *ds = opaque;
1632 DisplayChangeListener *dcl = ds->listeners;
1633
1634 qemu_flush_coalesced_mmio_buffer();
1635 dpy_refresh(ds);
1636
1637 while (dcl != NULL) {
1638 if (dcl->gui_timer_interval &&
1639 dcl->gui_timer_interval < interval)
1640 interval = dcl->gui_timer_interval;
1641 dcl = dcl->next;
1642 }
1643 qemu_mod_timer(ds->gui_timer, interval + qemu_get_clock(rt_clock));
1644 }
1645
1646 static void nographic_update(void *opaque)
1647 {
1648 uint64_t interval = GUI_REFRESH_INTERVAL;
1649
1650 qemu_flush_coalesced_mmio_buffer();
1651 qemu_mod_timer(nographic_timer, interval + qemu_get_clock(rt_clock));
1652 }
1653
1654 struct vm_change_state_entry {
1655 VMChangeStateHandler *cb;
1656 void *opaque;
1657 QLIST_ENTRY (vm_change_state_entry) entries;
1658 };
1659
1660 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1661
1662 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1663 void *opaque)
1664 {
1665 VMChangeStateEntry *e;
1666
1667 e = qemu_mallocz(sizeof (*e));
1668
1669 e->cb = cb;
1670 e->opaque = opaque;
1671 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1672 return e;
1673 }
1674
1675 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1676 {
1677 QLIST_REMOVE (e, entries);
1678 qemu_free (e);
1679 }
1680
1681 void vm_state_notify(int running, int reason)
1682 {
1683 VMChangeStateEntry *e;
1684
1685 for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
1686 e->cb(e->opaque, running, reason);
1687 }
1688 }
1689
1690 void vm_start(void)
1691 {
1692 if (!vm_running) {
1693 cpu_enable_ticks();
1694 vm_running = 1;
1695 vm_state_notify(1, 0);
1696 resume_all_vcpus();
1697 }
1698 }
1699
1700 /* reset/shutdown handler */
1701
1702 typedef struct QEMUResetEntry {
1703 QTAILQ_ENTRY(QEMUResetEntry) entry;
1704 QEMUResetHandler *func;
1705 void *opaque;
1706 } QEMUResetEntry;
1707
1708 static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
1709 QTAILQ_HEAD_INITIALIZER(reset_handlers);
1710 static int reset_requested;
1711 static int shutdown_requested;
1712 static int powerdown_requested;
1713 int debug_requested;
1714 int vmstop_requested;
1715
1716 int qemu_shutdown_requested(void)
1717 {
1718 int r = shutdown_requested;
1719 shutdown_requested = 0;
1720 return r;
1721 }
1722
1723 int qemu_reset_requested(void)
1724 {
1725 int r = reset_requested;
1726 reset_requested = 0;
1727 return r;
1728 }
1729
1730 int qemu_powerdown_requested(void)
1731 {
1732 int r = powerdown_requested;
1733 powerdown_requested = 0;
1734 return r;
1735 }
1736
1737 static int qemu_debug_requested(void)
1738 {
1739 int r = debug_requested;
1740 debug_requested = 0;
1741 return r;
1742 }
1743
1744 static int qemu_vmstop_requested(void)
1745 {
1746 int r = vmstop_requested;
1747 vmstop_requested = 0;
1748 return r;
1749 }
1750
1751 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
1752 {
1753 QEMUResetEntry *re = qemu_mallocz(sizeof(QEMUResetEntry));
1754
1755 re->func = func;
1756 re->opaque = opaque;
1757 QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
1758 }
1759
1760 void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
1761 {
1762 QEMUResetEntry *re;
1763
1764 QTAILQ_FOREACH(re, &reset_handlers, entry) {
1765 if (re->func == func && re->opaque == opaque) {
1766 QTAILQ_REMOVE(&reset_handlers, re, entry);
1767 qemu_free(re);
1768 return;
1769 }
1770 }
1771 }
1772
1773 void qemu_system_reset(void)
1774 {
1775 QEMUResetEntry *re, *nre;
1776
1777 /* reset all devices */
1778 QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
1779 re->func(re->opaque);
1780 }
1781 monitor_protocol_event(QEVENT_RESET, NULL);
1782 cpu_synchronize_all_post_reset();
1783 }
1784
1785 void qemu_system_reset_request(void)
1786 {
1787 if (no_reboot) {
1788 shutdown_requested = 1;
1789 } else {
1790 reset_requested = 1;
1791 }
1792 qemu_notify_event();
1793 }
1794
1795 void qemu_system_shutdown_request(void)
1796 {
1797 shutdown_requested = 1;
1798 qemu_notify_event();
1799 }
1800
1801 void qemu_system_powerdown_request(void)
1802 {
1803 powerdown_requested = 1;
1804 qemu_notify_event();
1805 }
1806
1807 #ifdef _WIN32
1808 static void host_main_loop_wait(int *timeout)
1809 {
1810 int ret, ret2, i;
1811 PollingEntry *pe;
1812
1813
1814 /* XXX: need to suppress polling by better using win32 events */
1815 ret = 0;
1816 for(pe = first_polling_entry; pe != NULL; pe = pe->next) {
1817 ret |= pe->func(pe->opaque);
1818 }
1819 if (ret == 0) {
1820 int err;
1821 WaitObjects *w = &wait_objects;
1822
1823 ret = WaitForMultipleObjects(w->num, w->events, FALSE, *timeout);
1824 if (WAIT_OBJECT_0 + 0 <= ret && ret <= WAIT_OBJECT_0 + w->num - 1) {
1825 if (w->func[ret - WAIT_OBJECT_0])
1826 w->func[ret - WAIT_OBJECT_0](w->opaque[ret - WAIT_OBJECT_0]);
1827
1828 /* Check for additional signaled events */
1829 for(i = (ret - WAIT_OBJECT_0 + 1); i < w->num; i++) {
1830
1831 /* Check if event is signaled */
1832 ret2 = WaitForSingleObject(w->events[i], 0);
1833 if(ret2 == WAIT_OBJECT_0) {
1834 if (w->func[i])
1835 w->func[i](w->opaque[i]);
1836 } else if (ret2 == WAIT_TIMEOUT) {
1837 } else {
1838 err = GetLastError();
1839 fprintf(stderr, "WaitForSingleObject error %d %d\n", i, err);
1840 }
1841 }
1842 } else if (ret == WAIT_TIMEOUT) {
1843 } else {
1844 err = GetLastError();
1845 fprintf(stderr, "WaitForMultipleObjects error %d %d\n", ret, err);
1846 }
1847 }
1848
1849 *timeout = 0;
1850 }
1851 #else
1852 static void host_main_loop_wait(int *timeout)
1853 {
1854 }
1855 #endif
1856
1857 void main_loop_wait(int nonblocking)
1858 {
1859 IOHandlerRecord *ioh;
1860 fd_set rfds, wfds, xfds;
1861 int ret, nfds;
1862 struct timeval tv;
1863 int timeout;
1864
1865 if (nonblocking)
1866 timeout = 0;
1867 else {
1868 timeout = qemu_calculate_timeout();
1869 qemu_bh_update_timeout(&timeout);
1870 }
1871
1872 host_main_loop_wait(&timeout);
1873
1874 /* poll any events */
1875 /* XXX: separate device handlers from system ones */
1876 nfds = -1;
1877 FD_ZERO(&rfds);
1878 FD_ZERO(&wfds);
1879 FD_ZERO(&xfds);
1880 QLIST_FOREACH(ioh, &io_handlers, next) {
1881 if (ioh->deleted)
1882 continue;
1883 if (ioh->fd_read &&
1884 (!ioh->fd_read_poll ||
1885 ioh->fd_read_poll(ioh->opaque) != 0)) {
1886 FD_SET(ioh->fd, &rfds);
1887 if (ioh->fd > nfds)
1888 nfds = ioh->fd;
1889 }
1890 if (ioh->fd_write) {
1891 FD_SET(ioh->fd, &wfds);
1892 if (ioh->fd > nfds)
1893 nfds = ioh->fd;
1894 }
1895 }
1896
1897 tv.tv_sec = timeout / 1000;
1898 tv.tv_usec = (timeout % 1000) * 1000;
1899
1900 slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
1901
1902 qemu_mutex_unlock_iothread();
1903 ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
1904 qemu_mutex_lock_iothread();
1905 if (ret > 0) {
1906 IOHandlerRecord *pioh;
1907
1908 QLIST_FOREACH_SAFE(ioh, &io_handlers, next, pioh) {
1909 if (ioh->deleted) {
1910 QLIST_REMOVE(ioh, next);
1911 qemu_free(ioh);
1912 continue;
1913 }
1914 if (ioh->fd_read && FD_ISSET(ioh->fd, &rfds)) {
1915 ioh->fd_read(ioh->opaque);
1916 }
1917 if (ioh->fd_write && FD_ISSET(ioh->fd, &wfds)) {
1918 ioh->fd_write(ioh->opaque);
1919 }
1920 }
1921 }
1922
1923 slirp_select_poll(&rfds, &wfds, &xfds, (ret < 0));
1924
1925 qemu_run_all_timers();
1926
1927 /* Check bottom-halves last in case any of the earlier events triggered
1928 them. */
1929 qemu_bh_poll();
1930
1931 }
1932
1933 static int vm_can_run(void)
1934 {
1935 if (powerdown_requested)
1936 return 0;
1937 if (reset_requested)
1938 return 0;
1939 if (shutdown_requested)
1940 return 0;
1941 if (debug_requested)
1942 return 0;
1943 return 1;
1944 }
1945
1946 qemu_irq qemu_system_powerdown;
1947
1948 static void main_loop(void)
1949 {
1950 int r;
1951
1952 qemu_main_loop_start();
1953
1954 for (;;) {
1955 do {
1956 bool nonblocking = false;
1957 #ifdef CONFIG_PROFILER
1958 int64_t ti;
1959 #endif
1960 #ifndef CONFIG_IOTHREAD
1961 nonblocking = tcg_cpu_exec();
1962 #endif
1963 #ifdef CONFIG_PROFILER
1964 ti = profile_getclock();
1965 #endif
1966 main_loop_wait(nonblocking);
1967 #ifdef CONFIG_PROFILER
1968 dev_time += profile_getclock() - ti;
1969 #endif
1970 } while (vm_can_run());
1971
1972 if ((r = qemu_debug_requested())) {
1973 vm_stop(r);
1974 }
1975 if (qemu_shutdown_requested()) {
1976 monitor_protocol_event(QEVENT_SHUTDOWN, NULL);
1977 if (no_shutdown) {
1978 vm_stop(0);
1979 no_shutdown = 0;
1980 } else
1981 break;
1982 }
1983 if (qemu_reset_requested()) {
1984 pause_all_vcpus();
1985 qemu_system_reset();
1986 resume_all_vcpus();
1987 }
1988 if (qemu_powerdown_requested()) {
1989 monitor_protocol_event(QEVENT_POWERDOWN, NULL);
1990 qemu_irq_raise(qemu_system_powerdown);
1991 }
1992 if ((r = qemu_vmstop_requested())) {
1993 vm_stop(r);
1994 }
1995 }
1996 pause_all_vcpus();
1997 }
1998
1999 static void version(void)
2000 {
2001 printf("QEMU PC emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
2002 }
2003
2004 static void help(int exitcode)
2005 {
2006 const char *options_help =
2007 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
2008 opt_help
2009 #define DEFHEADING(text) stringify(text) "\n"
2010 #include "qemu-options.h"
2011 #undef DEF
2012 #undef DEFHEADING
2013 #undef GEN_DOCS
2014 ;
2015 version();
2016 printf("usage: %s [options] [disk_image]\n"
2017 "\n"
2018 "'disk_image' is a raw hard image image for IDE hard disk 0\n"
2019 "\n"
2020 "%s\n"
2021 "During emulation, the following keys are useful:\n"
2022 "ctrl-alt-f toggle full screen\n"
2023 "ctrl-alt-n switch to virtual console 'n'\n"
2024 "ctrl-alt toggle mouse and keyboard grab\n"
2025 "\n"
2026 "When using -nographic, press 'ctrl-a h' to get some help.\n",
2027 "qemu",
2028 options_help);
2029 exit(exitcode);
2030 }
2031
2032 #define HAS_ARG 0x0001
2033
2034 enum {
2035 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
2036 opt_enum,
2037 #define DEFHEADING(text)
2038 #include "qemu-options.h"
2039 #undef DEF
2040 #undef DEFHEADING
2041 #undef GEN_DOCS
2042 };
2043
2044 typedef struct QEMUOption {
2045 const char *name;
2046 int flags;
2047 int index;
2048 uint32_t arch_mask;
2049 } QEMUOption;
2050
2051 static const QEMUOption qemu_options[] = {
2052 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
2053 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
2054 { option, opt_arg, opt_enum, arch_mask },
2055 #define DEFHEADING(text)
2056 #include "qemu-options.h"
2057 #undef DEF
2058 #undef DEFHEADING
2059 #undef GEN_DOCS
2060 { NULL },
2061 };
2062 static void select_vgahw (const char *p)
2063 {
2064 const char *opts;
2065
2066 default_vga = 0;
2067 vga_interface_type = VGA_NONE;
2068 if (strstart(p, "std", &opts)) {
2069 vga_interface_type = VGA_STD;
2070 } else if (strstart(p, "cirrus", &opts)) {
2071 vga_interface_type = VGA_CIRRUS;
2072 } else if (strstart(p, "vmware", &opts)) {
2073 vga_interface_type = VGA_VMWARE;
2074 } else if (strstart(p, "xenfb", &opts)) {
2075 vga_interface_type = VGA_XENFB;
2076 } else if (!strstart(p, "none", &opts)) {
2077 invalid_vga:
2078 fprintf(stderr, "Unknown vga type: %s\n", p);
2079 exit(1);
2080 }
2081 while (*opts) {
2082 const char *nextopt;
2083
2084 if (strstart(opts, ",retrace=", &nextopt)) {
2085 opts = nextopt;
2086 if (strstart(opts, "dumb", &nextopt))
2087 vga_retrace_method = VGA_RETRACE_DUMB;
2088 else if (strstart(opts, "precise", &nextopt))
2089 vga_retrace_method = VGA_RETRACE_PRECISE;
2090 else goto invalid_vga;
2091 } else goto invalid_vga;
2092 opts = nextopt;
2093 }
2094 }
2095
2096 static int balloon_parse(const char *arg)
2097 {
2098 QemuOpts *opts;
2099
2100 if (strcmp(arg, "none") == 0) {
2101 return 0;
2102 }
2103
2104 if (!strncmp(arg, "virtio", 6)) {
2105 if (arg[6] == ',') {
2106 /* have params -> parse them */
2107 opts = qemu_opts_parse(&qemu_device_opts, arg+7, 0);
2108 if (!opts)
2109 return -1;
2110 } else {
2111 /* create empty opts */
2112 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2113 }
2114 qemu_opt_set(opts, "driver", "virtio-balloon-pci");
2115 return 0;
2116 }
2117
2118 return -1;
2119 }
2120
2121 #ifdef _WIN32
2122 static BOOL WINAPI qemu_ctrl_handler(DWORD type)
2123 {
2124 exit(STATUS_CONTROL_C_EXIT);
2125 return TRUE;
2126 }
2127 #endif
2128
2129 #ifndef _WIN32
2130
2131 static void termsig_handler(int signal)
2132 {
2133 qemu_system_shutdown_request();
2134 }
2135
2136 static void sigchld_handler(int signal)
2137 {
2138 waitpid(-1, NULL, WNOHANG);
2139 }
2140
2141 static void sighandler_setup(void)
2142 {
2143 struct sigaction act;
2144
2145 memset(&act, 0, sizeof(act));
2146 act.sa_handler = termsig_handler;
2147 sigaction(SIGINT, &act, NULL);
2148 sigaction(SIGHUP, &act, NULL);
2149 sigaction(SIGTERM, &act, NULL);
2150
2151 act.sa_handler = sigchld_handler;
2152 act.sa_flags = SA_NOCLDSTOP;
2153 sigaction(SIGCHLD, &act, NULL);
2154 }
2155
2156 #endif
2157
2158 #ifdef _WIN32
2159 /* Look for support files in the same directory as the executable. */
2160 static char *find_datadir(const char *argv0)
2161 {
2162 char *p;
2163 char buf[MAX_PATH];
2164 DWORD len;
2165
2166 len = GetModuleFileName(NULL, buf, sizeof(buf) - 1);
2167 if (len == 0) {
2168 return NULL;
2169 }
2170
2171 buf[len] = 0;
2172 p = buf + len - 1;
2173 while (p != buf && *p != '\\')
2174 p--;
2175 *p = 0;
2176 if (access(buf, R_OK) == 0) {
2177 return qemu_strdup(buf);
2178 }
2179 return NULL;
2180 }
2181 #else /* !_WIN32 */
2182
2183 /* Find a likely location for support files using the location of the binary.
2184 For installed binaries this will be "$bindir/../share/qemu". When
2185 running from the build tree this will be "$bindir/../pc-bios". */
2186 #define SHARE_SUFFIX "/share/qemu"
2187 #define BUILD_SUFFIX "/pc-bios"
2188 static char *find_datadir(const char *argv0)
2189 {
2190 char *dir;
2191 char *p = NULL;
2192 char *res;
2193 char buf[PATH_MAX];
2194 size_t max_len;
2195
2196 #if defined(__linux__)
2197 {
2198 int len;
2199 len = readlink("/proc/self/exe", buf, sizeof(buf) - 1);
2200 if (len > 0) {
2201 buf[len] = 0;
2202 p = buf;
2203 }
2204 }
2205 #elif defined(__FreeBSD__)
2206 {
2207 static int mib[4] = {CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, -1};
2208 size_t len = sizeof(buf) - 1;
2209
2210 *buf = '\0';
2211 if (!sysctl(mib, sizeof(mib)/sizeof(*mib), buf, &len, NULL, 0) &&
2212 *buf) {
2213 buf[sizeof(buf) - 1] = '\0';
2214 p = buf;
2215 }
2216 }
2217 #endif
2218 /* If we don't have any way of figuring out the actual executable
2219 location then try argv[0]. */
2220 if (!p) {
2221 p = realpath(argv0, buf);
2222 if (!p) {
2223 return NULL;
2224 }
2225 }
2226 dir = dirname(p);
2227 dir = dirname(dir);
2228
2229 max_len = strlen(dir) +
2230 MAX(strlen(SHARE_SUFFIX), strlen(BUILD_SUFFIX)) + 1;
2231 res = qemu_mallocz(max_len);
2232 snprintf(res, max_len, "%s%s", dir, SHARE_SUFFIX);
2233 if (access(res, R_OK)) {
2234 snprintf(res, max_len, "%s%s", dir, BUILD_SUFFIX);
2235 if (access(res, R_OK)) {
2236 qemu_free(res);
2237 res = NULL;
2238 }
2239 }
2240
2241 return res;
2242 }
2243 #undef SHARE_SUFFIX
2244 #undef BUILD_SUFFIX
2245 #endif
2246
2247 char *qemu_find_file(int type, const char *name)
2248 {
2249 int len;
2250 const char *subdir;
2251 char *buf;
2252
2253 /* If name contains path separators then try it as a straight path. */
2254 if ((strchr(name, '/') || strchr(name, '\\'))
2255 && access(name, R_OK) == 0) {
2256 return qemu_strdup(name);
2257 }
2258 switch (type) {
2259 case QEMU_FILE_TYPE_BIOS:
2260 subdir = "";
2261 break;
2262 case QEMU_FILE_TYPE_KEYMAP:
2263 subdir = "keymaps/";
2264 break;
2265 default:
2266 abort();
2267 }
2268 len = strlen(data_dir) + strlen(name) + strlen(subdir) + 2;
2269 buf = qemu_mallocz(len);
2270 snprintf(buf, len, "%s/%s%s", data_dir, subdir, name);
2271 if (access(buf, R_OK)) {
2272 qemu_free(buf);
2273 return NULL;
2274 }
2275 return buf;
2276 }
2277
2278 static int device_help_func(QemuOpts *opts, void *opaque)
2279 {
2280 return qdev_device_help(opts);
2281 }
2282
2283 static int device_init_func(QemuOpts *opts, void *opaque)
2284 {
2285 DeviceState *dev;
2286
2287 dev = qdev_device_add(opts);
2288 if (!dev)
2289 return -1;
2290 return 0;
2291 }
2292
2293 static int chardev_init_func(QemuOpts *opts, void *opaque)
2294 {
2295 CharDriverState *chr;
2296
2297 chr = qemu_chr_open_opts(opts, NULL);
2298 if (!chr)
2299 return -1;
2300 return 0;
2301 }
2302
2303 static int mon_init_func(QemuOpts *opts, void *opaque)
2304 {
2305 CharDriverState *chr;
2306 const char *chardev;
2307 const char *mode;
2308 int flags;
2309
2310 mode = qemu_opt_get(opts, "mode");
2311 if (mode == NULL) {
2312 mode = "readline";
2313 }
2314 if (strcmp(mode, "readline") == 0) {
2315 flags = MONITOR_USE_READLINE;
2316 } else if (strcmp(mode, "control") == 0) {
2317 flags = MONITOR_USE_CONTROL;
2318 } else {
2319 fprintf(stderr, "unknown monitor mode \"%s\"\n", mode);
2320 exit(1);
2321 }
2322
2323 if (qemu_opt_get_bool(opts, "default", 0))
2324 flags |= MONITOR_IS_DEFAULT;
2325
2326 chardev = qemu_opt_get(opts, "chardev");
2327 chr = qemu_chr_find(chardev);
2328 if (chr == NULL) {
2329 fprintf(stderr, "chardev \"%s\" not found\n", chardev);
2330 exit(1);
2331 }
2332
2333 monitor_init(chr, flags);
2334 return 0;
2335 }
2336
2337 static void monitor_parse(const char *optarg, const char *mode)
2338 {
2339 static int monitor_device_index = 0;
2340 QemuOpts *opts;
2341 const char *p;
2342 char label[32];
2343 int def = 0;
2344
2345 if (strstart(optarg, "chardev:", &p)) {
2346 snprintf(label, sizeof(label), "%s", p);
2347 } else {
2348 if (monitor_device_index) {
2349 snprintf(label, sizeof(label), "monitor%d",
2350 monitor_device_index);
2351 } else {
2352 snprintf(label, sizeof(label), "monitor");
2353 def = 1;
2354 }
2355 opts = qemu_chr_parse_compat(label, optarg);
2356 if (!opts) {
2357 fprintf(stderr, "parse error: %s\n", optarg);
2358 exit(1);
2359 }
2360 }
2361
2362 opts = qemu_opts_create(&qemu_mon_opts, label, 1);
2363 if (!opts) {
2364 fprintf(stderr, "duplicate chardev: %s\n", label);
2365 exit(1);
2366 }
2367 qemu_opt_set(opts, "mode", mode);
2368 qemu_opt_set(opts, "chardev", label);
2369 if (def)
2370 qemu_opt_set(opts, "default", "on");
2371 monitor_device_index++;
2372 }
2373
2374 struct device_config {
2375 enum {
2376 DEV_USB, /* -usbdevice */
2377 DEV_BT, /* -bt */
2378 DEV_SERIAL, /* -serial */
2379 DEV_PARALLEL, /* -parallel */
2380 DEV_VIRTCON, /* -virtioconsole */
2381 DEV_DEBUGCON, /* -debugcon */
2382 } type;
2383 const char *cmdline;
2384 QTAILQ_ENTRY(device_config) next;
2385 };
2386 QTAILQ_HEAD(, device_config) device_configs = QTAILQ_HEAD_INITIALIZER(device_configs);
2387
2388 static void add_device_config(int type, const char *cmdline)
2389 {
2390 struct device_config *conf;
2391
2392 conf = qemu_mallocz(sizeof(*conf));
2393 conf->type = type;
2394 conf->cmdline = cmdline;
2395 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2396 }
2397
2398 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2399 {
2400 struct device_config *conf;
2401 int rc;
2402
2403 QTAILQ_FOREACH(conf, &device_configs, next) {
2404 if (conf->type != type)
2405 continue;
2406 rc = func(conf->cmdline);
2407 if (0 != rc)
2408 return rc;
2409 }
2410 return 0;
2411 }
2412
2413 static int serial_parse(const char *devname)
2414 {
2415 static int index = 0;
2416 char label[32];
2417
2418 if (strcmp(devname, "none") == 0)
2419 return 0;
2420 if (index == MAX_SERIAL_PORTS) {
2421 fprintf(stderr, "qemu: too many serial ports\n");
2422 exit(1);
2423 }
2424 snprintf(label, sizeof(label), "serial%d", index);
2425 serial_hds[index] = qemu_chr_open(label, devname, NULL);
2426 if (!serial_hds[index]) {
2427 fprintf(stderr, "qemu: could not open serial device '%s': %s\n",
2428 devname, strerror(errno));
2429 return -1;
2430 }
2431 index++;
2432 return 0;
2433 }
2434
2435 static int parallel_parse(const char *devname)
2436 {
2437 static int index = 0;
2438 char label[32];
2439
2440 if (strcmp(devname, "none") == 0)
2441 return 0;
2442 if (index == MAX_PARALLEL_PORTS) {
2443 fprintf(stderr, "qemu: too many parallel ports\n");
2444 exit(1);
2445 }
2446 snprintf(label, sizeof(label), "parallel%d", index);
2447 parallel_hds[index] = qemu_chr_open(label, devname, NULL);
2448 if (!parallel_hds[index]) {
2449 fprintf(stderr, "qemu: could not open parallel device '%s': %s\n",
2450 devname, strerror(errno));
2451 return -1;
2452 }
2453 index++;
2454 return 0;
2455 }
2456
2457 static int virtcon_parse(const char *devname)
2458 {
2459 static int index = 0;
2460 char label[32];
2461 QemuOpts *bus_opts, *dev_opts;
2462
2463 if (strcmp(devname, "none") == 0)
2464 return 0;
2465 if (index == MAX_VIRTIO_CONSOLES) {
2466 fprintf(stderr, "qemu: too many virtio consoles\n");
2467 exit(1);
2468 }
2469
2470 bus_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2471 qemu_opt_set(bus_opts, "driver", "virtio-serial");
2472
2473 dev_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2474 qemu_opt_set(dev_opts, "driver", "virtconsole");
2475
2476 snprintf(label, sizeof(label), "virtcon%d", index);
2477 virtcon_hds[index] = qemu_chr_open(label, devname, NULL);
2478 if (!virtcon_hds[index]) {
2479 fprintf(stderr, "qemu: could not open virtio console '%s': %s\n",
2480 devname, strerror(errno));
2481 return -1;
2482 }
2483 qemu_opt_set(dev_opts, "chardev", label);
2484
2485 index++;
2486 return 0;
2487 }
2488
2489 static int debugcon_parse(const char *devname)
2490 {
2491 QemuOpts *opts;
2492
2493 if (!qemu_chr_open("debugcon", devname, NULL)) {
2494 exit(1);
2495 }
2496 opts = qemu_opts_create(&qemu_device_opts, "debugcon", 1);
2497 if (!opts) {
2498 fprintf(stderr, "qemu: already have a debugcon device\n");
2499 exit(1);
2500 }
2501 qemu_opt_set(opts, "driver", "isa-debugcon");
2502 qemu_opt_set(opts, "chardev", "debugcon");
2503 return 0;
2504 }
2505
2506 static const QEMUOption *lookup_opt(int argc, char **argv,
2507 const char **poptarg, int *poptind)
2508 {
2509 const QEMUOption *popt;
2510 int optind = *poptind;
2511 char *r = argv[optind];
2512 const char *optarg;
2513
2514 loc_set_cmdline(argv, optind, 1);
2515 optind++;
2516 /* Treat --foo the same as -foo. */
2517 if (r[1] == '-')
2518 r++;
2519 popt = qemu_options;
2520 for(;;) {
2521 if (!popt->name) {
2522 error_report("invalid option");
2523 exit(1);
2524 }
2525 if (!strcmp(popt->name, r + 1))
2526 break;
2527 popt++;
2528 }
2529 if (popt->flags & HAS_ARG) {
2530 if (optind >= argc) {
2531 error_report("requires an argument");
2532 exit(1);
2533 }
2534 optarg = argv[optind++];
2535 loc_set_cmdline(argv, optind - 2, 2);
2536 } else {
2537 optarg = NULL;
2538 }
2539
2540 *poptarg = optarg;
2541 *poptind = optind;
2542
2543 return popt;
2544 }
2545
2546 int main(int argc, char **argv, char **envp)
2547 {
2548 const char *gdbstub_dev = NULL;
2549 int i;
2550 int snapshot, linux_boot;
2551 const char *icount_option = NULL;
2552 const char *initrd_filename;
2553 const char *kernel_filename, *kernel_cmdline;
2554 char boot_devices[33] = "cad"; /* default to HD->floppy->CD-ROM */
2555 DisplayState *ds;
2556 DisplayChangeListener *dcl;
2557 int cyls, heads, secs, translation;
2558 QemuOpts *hda_opts = NULL, *opts;
2559 int optind;
2560 const char *optarg;
2561 const char *loadvm = NULL;
2562 QEMUMachine *machine;
2563 const char *cpu_model;
2564 #ifndef _WIN32
2565 int fds[2];
2566 #endif
2567 int tb_size;
2568 const char *pid_file = NULL;
2569 const char *incoming = NULL;
2570 #ifndef _WIN32
2571 int fd = 0;
2572 struct passwd *pwd = NULL;
2573 const char *chroot_dir = NULL;
2574 const char *run_as = NULL;
2575 #endif
2576 int show_vnc_port = 0;
2577 int defconfig = 1;
2578
2579 error_set_progname(argv[0]);
2580
2581 init_clocks();
2582
2583 qemu_cache_utils_init(envp);
2584
2585 QLIST_INIT (&vm_change_state_head);
2586 #ifndef _WIN32
2587 {
2588 struct sigaction act;
2589 sigfillset(&act.sa_mask);
2590 act.sa_flags = 0;
2591 act.sa_handler = SIG_IGN;
2592 sigaction(SIGPIPE, &act, NULL);
2593 }
2594 #else
2595 SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE);
2596 /* Note: cpu_interrupt() is currently not SMP safe, so we force
2597 QEMU to run on a single CPU */
2598 {
2599 HANDLE h;
2600 DWORD mask, smask;
2601 int i;
2602 h = GetCurrentProcess();
2603 if (GetProcessAffinityMask(h, &mask, &smask)) {
2604 for(i = 0; i < 32; i++) {
2605 if (mask & (1 << i))
2606 break;
2607 }
2608 if (i != 32) {
2609 mask = 1 << i;
2610 SetProcessAffinityMask(h, mask);
2611 }
2612 }
2613 }
2614 #endif
2615
2616 module_call_init(MODULE_INIT_MACHINE);
2617 machine = find_default_machine();
2618 cpu_model = NULL;
2619 initrd_filename = NULL;
2620 ram_size = 0;
2621 snapshot = 0;
2622 kernel_filename = NULL;
2623 kernel_cmdline = "";
2624 cyls = heads = secs = 0;
2625 translation = BIOS_ATA_TRANSLATION_AUTO;
2626
2627 for (i = 0; i < MAX_NODES; i++) {
2628 node_mem[i] = 0;
2629 node_cpumask[i] = 0;
2630 }
2631
2632 nb_numa_nodes = 0;
2633 nb_nics = 0;
2634
2635 tb_size = 0;
2636 autostart= 1;
2637
2638 /* first pass of option parsing */
2639 optind = 1;
2640 while (optind < argc) {
2641 if (argv[optind][0] != '-') {
2642 /* disk image */
2643 optind++;
2644 continue;
2645 } else {
2646 const QEMUOption *popt;
2647
2648 popt = lookup_opt(argc, argv, &optarg, &optind);
2649 switch (popt->index) {
2650 case QEMU_OPTION_nodefconfig:
2651 defconfig=0;
2652 break;
2653 }
2654 }
2655 }
2656
2657 if (defconfig) {
2658 const char *fname;
2659 FILE *fp;
2660
2661 fname = CONFIG_QEMU_CONFDIR "/qemu.conf";
2662 fp = fopen(fname, "r");
2663 if (fp) {
2664 if (qemu_config_parse(fp, fname) != 0) {
2665 exit(1);
2666 }
2667 fclose(fp);
2668 }
2669
2670 fname = arch_config_name;
2671 fp = fopen(fname, "r");
2672 if (fp) {
2673 if (qemu_config_parse(fp, fname) != 0) {
2674 exit(1);
2675 }
2676 fclose(fp);
2677 }
2678 }
2679 cpudef_init();
2680
2681 /* second pass of option parsing */
2682 optind = 1;
2683 for(;;) {
2684 if (optind >= argc)
2685 break;
2686 if (argv[optind][0] != '-') {
2687 hda_opts = drive_add(argv[optind++], HD_ALIAS, 0);
2688 } else {
2689 const QEMUOption *popt;
2690
2691 popt = lookup_opt(argc, argv, &optarg, &optind);
2692 if (!(popt->arch_mask & arch_type)) {
2693 printf("Option %s not supported for this target\n", popt->name);
2694 exit(1);
2695 }
2696 switch(popt->index) {
2697 case QEMU_OPTION_M:
2698 machine = find_machine(optarg);
2699 if (!machine) {
2700 QEMUMachine *m;
2701 printf("Supported machines are:\n");
2702 for(m = first_machine; m != NULL; m = m->next) {
2703 if (m->alias)
2704 printf("%-10s %s (alias of %s)\n",
2705 m->alias, m->desc, m->name);
2706 printf("%-10s %s%s\n",
2707 m->name, m->desc,
2708 m->is_default ? " (default)" : "");
2709 }
2710 exit(*optarg != '?');
2711 }
2712 break;
2713 case QEMU_OPTION_cpu:
2714 /* hw initialization will check this */
2715 if (*optarg == '?') {
2716 /* XXX: implement xxx_cpu_list for targets that still miss it */
2717 #if defined(cpu_list_id)
2718 cpu_list_id(stdout, &fprintf, optarg);
2719 #elif defined(cpu_list)
2720 cpu_list(stdout, &fprintf); /* deprecated */
2721 #endif
2722 exit(0);
2723 } else {
2724 cpu_model = optarg;
2725 }
2726 break;
2727 case QEMU_OPTION_initrd:
2728 initrd_filename = optarg;
2729 break;
2730 case QEMU_OPTION_hda:
2731 if (cyls == 0)
2732 hda_opts = drive_add(optarg, HD_ALIAS, 0);
2733 else
2734 hda_opts = drive_add(optarg, HD_ALIAS
2735 ",cyls=%d,heads=%d,secs=%d%s",
2736 0, cyls, heads, secs,
2737 translation == BIOS_ATA_TRANSLATION_LBA ?
2738 ",trans=lba" :
2739 translation == BIOS_ATA_TRANSLATION_NONE ?
2740 ",trans=none" : "");
2741 break;
2742 case QEMU_OPTION_hdb:
2743 case QEMU_OPTION_hdc:
2744 case QEMU_OPTION_hdd:
2745 drive_add(optarg, HD_ALIAS, popt->index - QEMU_OPTION_hda);
2746 break;
2747 case QEMU_OPTION_drive:
2748 drive_add(NULL, "%s", optarg);
2749 break;
2750 case QEMU_OPTION_set:
2751 if (qemu_set_option(optarg) != 0)
2752 exit(1);
2753 break;
2754 case QEMU_OPTION_global:
2755 if (qemu_global_option(optarg) != 0)
2756 exit(1);
2757 break;
2758 case QEMU_OPTION_mtdblock:
2759 drive_add(optarg, MTD_ALIAS);
2760 break;
2761 case QEMU_OPTION_sd:
2762 drive_add(optarg, SD_ALIAS);
2763 break;
2764 case QEMU_OPTION_pflash:
2765 drive_add(optarg, PFLASH_ALIAS);
2766 break;
2767 case QEMU_OPTION_snapshot:
2768 snapshot = 1;
2769 break;
2770 case QEMU_OPTION_hdachs:
2771 {
2772 const char *p;
2773 p = optarg;
2774 cyls = strtol(p, (char **)&p, 0);
2775 if (cyls < 1 || cyls > 16383)
2776 goto chs_fail;
2777 if (*p != ',')
2778 goto chs_fail;
2779 p++;
2780 heads = strtol(p, (char **)&p, 0);
2781 if (heads < 1 || heads > 16)
2782 goto chs_fail;
2783 if (*p != ',')
2784 goto chs_fail;
2785 p++;
2786 secs = strtol(p, (char **)&p, 0);
2787 if (secs < 1 || secs > 63)
2788 goto chs_fail;
2789 if (*p == ',') {
2790 p++;
2791 if (!strcmp(p, "none"))
2792 translation = BIOS_ATA_TRANSLATION_NONE;
2793 else if (!strcmp(p, "lba"))
2794 translation = BIOS_ATA_TRANSLATION_LBA;
2795 else if (!strcmp(p, "auto"))
2796 translation = BIOS_ATA_TRANSLATION_AUTO;
2797 else
2798 goto chs_fail;
2799 } else if (*p != '\0') {
2800 chs_fail:
2801 fprintf(stderr, "qemu: invalid physical CHS format\n");
2802 exit(1);
2803 }
2804 if (hda_opts != NULL) {
2805 char num[16];
2806 snprintf(num, sizeof(num), "%d", cyls);
2807 qemu_opt_set(hda_opts, "cyls", num);
2808 snprintf(num, sizeof(num), "%d", heads);
2809 qemu_opt_set(hda_opts, "heads", num);
2810 snprintf(num, sizeof(num), "%d", secs);
2811 qemu_opt_set(hda_opts, "secs", num);
2812 if (translation == BIOS_ATA_TRANSLATION_LBA)
2813 qemu_opt_set(hda_opts, "trans", "lba");
2814 if (translation == BIOS_ATA_TRANSLATION_NONE)
2815 qemu_opt_set(hda_opts, "trans", "none");
2816 }
2817 }
2818 break;
2819 case QEMU_OPTION_numa:
2820 if (nb_numa_nodes >= MAX_NODES) {
2821 fprintf(stderr, "qemu: too many NUMA nodes\n");
2822 exit(1);
2823 }
2824 numa_add(optarg);
2825 break;
2826 case QEMU_OPTION_nographic:
2827 display_type = DT_NOGRAPHIC;
2828 break;
2829 #ifdef CONFIG_CURSES
2830 case QEMU_OPTION_curses:
2831 display_type = DT_CURSES;
2832 break;
2833 #endif
2834 case QEMU_OPTION_portrait:
2835 graphic_rotate = 1;
2836 break;
2837 case QEMU_OPTION_kernel:
2838 kernel_filename = optarg;
2839 break;
2840 case QEMU_OPTION_append:
2841 kernel_cmdline = optarg;
2842 break;
2843 case QEMU_OPTION_cdrom:
2844 drive_add(optarg, CDROM_ALIAS);
2845 break;
2846 case QEMU_OPTION_boot:
2847 {
2848 static const char * const params[] = {
2849 "order", "once", "menu", NULL
2850 };
2851 char buf[sizeof(boot_devices)];
2852 char *standard_boot_devices;
2853 int legacy = 0;
2854
2855 if (!strchr(optarg, '=')) {
2856 legacy = 1;
2857 pstrcpy(buf, sizeof(buf), optarg);
2858 } else if (check_params(buf, sizeof(buf), params, optarg) < 0) {
2859 fprintf(stderr,
2860 "qemu: unknown boot parameter '%s' in '%s'\n",
2861 buf, optarg);
2862 exit(1);
2863 }
2864
2865 if (legacy ||
2866 get_param_value(buf, sizeof(buf), "order", optarg)) {
2867 validate_bootdevices(buf);
2868 pstrcpy(boot_devices, sizeof(boot_devices), buf);
2869 }
2870 if (!legacy) {
2871 if (get_param_value(buf, sizeof(buf),
2872 "once", optarg)) {
2873 validate_bootdevices(buf);
2874 standard_boot_devices = qemu_strdup(boot_devices);
2875 pstrcpy(boot_devices, sizeof(boot_devices), buf);
2876 qemu_register_reset(restore_boot_devices,
2877 standard_boot_devices);
2878 }
2879 if (get_param_value(buf, sizeof(buf),
2880 "menu", optarg)) {
2881 if (!strcmp(buf, "on")) {
2882 boot_menu = 1;
2883 } else if (!strcmp(buf, "off")) {
2884 boot_menu = 0;
2885 } else {
2886 fprintf(stderr,
2887 "qemu: invalid option value '%s'\n",
2888 buf);
2889 exit(1);
2890 }
2891 }
2892 }
2893 }
2894 break;
2895 case QEMU_OPTION_fda:
2896 case QEMU_OPTION_fdb:
2897 drive_add(optarg, FD_ALIAS, popt->index - QEMU_OPTION_fda);
2898 break;
2899 case QEMU_OPTION_no_fd_bootchk:
2900 fd_bootchk = 0;
2901 break;
2902 case QEMU_OPTION_netdev:
2903 if (net_client_parse(&qemu_netdev_opts, optarg) == -1) {
2904 exit(1);
2905 }
2906 break;
2907 case QEMU_OPTION_net:
2908 if (net_client_parse(&qemu_net_opts, optarg) == -1) {
2909 exit(1);
2910 }
2911 break;
2912 #ifdef CONFIG_SLIRP
2913 case QEMU_OPTION_tftp:
2914 legacy_tftp_prefix = optarg;
2915 break;
2916 case QEMU_OPTION_bootp:
2917 legacy_bootp_filename = optarg;
2918 break;
2919 #ifndef _WIN32
2920 case QEMU_OPTION_smb:
2921 if (net_slirp_smb(optarg) < 0)
2922 exit(1);
2923 break;
2924 #endif
2925 case QEMU_OPTION_redir:
2926 if (net_slirp_redir(optarg) < 0)
2927 exit(1);
2928 break;
2929 #endif
2930 case QEMU_OPTION_bt:
2931 add_device_config(DEV_BT, optarg);
2932 break;
2933 case QEMU_OPTION_audio_help:
2934 if (!(audio_available())) {
2935 printf("Option %s not supported for this target\n", popt->name);
2936 exit(1);
2937 }
2938 AUD_help ();
2939 exit (0);
2940 break;
2941 case QEMU_OPTION_soundhw:
2942 if (!(audio_available())) {
2943 printf("Option %s not supported for this target\n", popt->name);
2944 exit(1);
2945 }
2946 select_soundhw (optarg);
2947 break;
2948 case QEMU_OPTION_h:
2949 help(0);
2950 break;
2951 case QEMU_OPTION_version:
2952 version();
2953 exit(0);
2954 break;
2955 case QEMU_OPTION_m: {
2956 uint64_t value;
2957 char *ptr;
2958
2959 value = strtoul(optarg, &ptr, 10);
2960 switch (*ptr) {
2961 case 0: case 'M': case 'm':
2962 value <<= 20;
2963 break;
2964 case 'G': case 'g':
2965 value <<= 30;
2966 break;
2967 default:
2968 fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
2969 exit(1);
2970 }
2971
2972 /* On 32-bit hosts, QEMU is limited by virtual address space */
2973 if (value > (2047 << 20) && HOST_LONG_BITS == 32) {
2974 fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
2975 exit(1);
2976 }
2977 if (value != (uint64_t)(ram_addr_t)value) {
2978 fprintf(stderr, "qemu: ram size too large\n");
2979 exit(1);
2980 }
2981 ram_size = value;
2982 break;
2983 }
2984 case QEMU_OPTION_mempath:
2985 mem_path = optarg;
2986 break;
2987 #ifdef MAP_POPULATE
2988 case QEMU_OPTION_mem_prealloc:
2989 mem_prealloc = 1;
2990 break;
2991 #endif
2992 case QEMU_OPTION_d:
2993 set_cpu_log(optarg);
2994 break;
2995 case QEMU_OPTION_s:
2996 gdbstub_dev = "tcp::" DEFAULT_GDBSTUB_PORT;
2997 break;
2998 case QEMU_OPTION_gdb:
2999 gdbstub_dev = optarg;
3000 break;
3001 case QEMU_OPTION_L:
3002 data_dir = optarg;
3003 break;
3004 case QEMU_OPTION_bios:
3005 bios_name = optarg;
3006 break;
3007 case QEMU_OPTION_singlestep:
3008 singlestep = 1;
3009 break;
3010 case QEMU_OPTION_S:
3011 autostart = 0;
3012 break;
3013 case QEMU_OPTION_k:
3014 keyboard_layout = optarg;
3015 break;
3016 case QEMU_OPTION_localtime:
3017 rtc_utc = 0;
3018 break;
3019 case QEMU_OPTION_vga:
3020 select_vgahw (optarg);
3021 break;
3022 case QEMU_OPTION_g:
3023 {
3024 const char *p;
3025 int w, h, depth;
3026 p = optarg;
3027 w = strtol(p, (char **)&p, 10);
3028 if (w <= 0) {
3029 graphic_error:
3030 fprintf(stderr, "qemu: invalid resolution or depth\n");
3031 exit(1);
3032 }
3033 if (*p != 'x')
3034 goto graphic_error;
3035 p++;
3036 h = strtol(p, (char **)&p, 10);
3037 if (h <= 0)
3038 goto graphic_error;
3039 if (*p == 'x') {
3040 p++;
3041 depth = strtol(p, (char **)&p, 10);
3042 if (depth != 8 && depth != 15 && depth != 16 &&
3043 depth != 24 && depth != 32)
3044 goto graphic_error;
3045 } else if (*p == '\0') {
3046 depth = graphic_depth;
3047 } else {
3048 goto graphic_error;
3049 }
3050
3051 graphic_width = w;
3052 graphic_height = h;
3053 graphic_depth = depth;
3054 }
3055 break;
3056 case QEMU_OPTION_echr:
3057 {
3058 char *r;
3059 term_escape_char = strtol(optarg, &r, 0);
3060 if (r == optarg)
3061 printf("Bad argument to echr\n");
3062 break;
3063 }
3064 case QEMU_OPTION_monitor:
3065 monitor_parse(optarg, "readline");
3066 default_monitor = 0;
3067 break;
3068 case QEMU_OPTION_qmp:
3069 monitor_parse(optarg, "control");
3070 default_monitor = 0;
3071 break;
3072 case QEMU_OPTION_mon:
3073 opts = qemu_opts_parse(&qemu_mon_opts, optarg, 1);
3074 if (!opts) {
3075 fprintf(stderr, "parse error: %s\n", optarg);
3076 exit(1);
3077 }
3078 default_monitor = 0;
3079 break;
3080 case QEMU_OPTION_chardev:
3081 opts = qemu_opts_parse(&qemu_chardev_opts, optarg, 1);
3082 if (!opts) {
3083 fprintf(stderr, "parse error: %s\n", optarg);
3084 exit(1);
3085 }
3086 break;
3087 case QEMU_OPTION_serial:
3088 add_device_config(DEV_SERIAL, optarg);
3089 default_serial = 0;
3090 if (strncmp(optarg, "mon:", 4) == 0) {
3091 default_monitor = 0;
3092 }
3093 break;
3094 case QEMU_OPTION_watchdog:
3095 if (watchdog) {
3096 fprintf(stderr,
3097 "qemu: only one watchdog option may be given\n");
3098 return 1;
3099 }
3100 watchdog = optarg;
3101 break;
3102 case QEMU_OPTION_watchdog_action:
3103 if (select_watchdog_action(optarg) == -1) {
3104 fprintf(stderr, "Unknown -watchdog-action parameter\n");
3105 exit(1);
3106 }
3107 break;
3108 case QEMU_OPTION_virtiocon:
3109 add_device_config(DEV_VIRTCON, optarg);
3110 default_virtcon = 0;
3111 if (strncmp(optarg, "mon:", 4) == 0) {
3112 default_monitor = 0;
3113 }
3114 break;
3115 case QEMU_OPTION_parallel:
3116 add_device_config(DEV_PARALLEL, optarg);
3117 default_parallel = 0;
3118 if (strncmp(optarg, "mon:", 4) == 0) {
3119 default_monitor = 0;
3120 }
3121 break;
3122 case QEMU_OPTION_debugcon:
3123 add_device_config(DEV_DEBUGCON, optarg);
3124 break;
3125 case QEMU_OPTION_loadvm:
3126 loadvm = optarg;
3127 break;
3128 case QEMU_OPTION_full_screen:
3129 full_screen = 1;
3130 break;
3131 #ifdef CONFIG_SDL
3132 case QEMU_OPTION_no_frame:
3133 no_frame = 1;
3134 break;
3135 case QEMU_OPTION_alt_grab:
3136 alt_grab = 1;
3137 break;
3138 case QEMU_OPTION_ctrl_grab:
3139 ctrl_grab = 1;
3140 break;
3141 case QEMU_OPTION_no_quit:
3142 no_quit = 1;
3143 break;
3144 case QEMU_OPTION_sdl:
3145 display_type = DT_SDL;
3146 break;
3147 #endif
3148 case QEMU_OPTION_pidfile:
3149 pid_file = optarg;
3150 break;
3151 case QEMU_OPTION_win2k_hack:
3152 win2k_install_hack = 1;
3153 break;
3154 case QEMU_OPTION_rtc_td_hack:
3155 rtc_td_hack = 1;
3156 break;
3157 case QEMU_OPTION_acpitable:
3158 do_acpitable_option(optarg);
3159 break;
3160 case QEMU_OPTION_smbios:
3161 do_smbios_option(optarg);
3162 break;
3163 case QEMU_OPTION_enable_kvm:
3164 if (!(kvm_available())) {
3165 printf("Option %s not supported for this target\n", popt->name);
3166 exit(1);
3167 }
3168 kvm_allowed = 1;
3169 break;
3170 case QEMU_OPTION_usb:
3171 usb_enabled = 1;
3172 break;
3173 case QEMU_OPTION_usbdevice:
3174 usb_enabled = 1;
3175 add_device_config(DEV_USB, optarg);
3176 break;
3177 case QEMU_OPTION_device:
3178 if (!qemu_opts_parse(&qemu_device_opts, optarg, 1)) {
3179 exit(1);
3180 }
3181 break;
3182 case QEMU_OPTION_smp:
3183 smp_parse(optarg);
3184 if (smp_cpus < 1) {
3185 fprintf(stderr, "Invalid number of CPUs\n");
3186 exit(1);
3187 }
3188 if (max_cpus < smp_cpus) {
3189 fprintf(stderr, "maxcpus must be equal to or greater than "
3190 "smp\n");
3191 exit(1);
3192 }
3193 if (max_cpus > 255) {
3194 fprintf(stderr, "Unsupported number of maxcpus\n");
3195 exit(1);
3196 }
3197 break;
3198 case QEMU_OPTION_vnc:
3199 display_type = DT_VNC;
3200 vnc_display = optarg;
3201 break;
3202 case QEMU_OPTION_no_acpi:
3203 acpi_enabled = 0;
3204 break;
3205 case QEMU_OPTION_no_hpet:
3206 no_hpet = 1;
3207 break;
3208 case QEMU_OPTION_balloon:
3209 if (balloon_parse(optarg) < 0) {
3210 fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
3211 exit(1);
3212 }
3213 break;
3214 case QEMU_OPTION_no_reboot:
3215 no_reboot = 1;
3216 break;
3217 case QEMU_OPTION_no_shutdown:
3218 no_shutdown = 1;
3219 break;
3220 case QEMU_OPTION_show_cursor:
3221 cursor_hide = 0;
3222 break;
3223 case QEMU_OPTION_uuid:
3224 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
3225 fprintf(stderr, "Fail to parse UUID string."
3226 " Wrong format.\n");
3227 exit(1);
3228 }
3229 break;
3230 #ifndef _WIN32
3231 case QEMU_OPTION_daemonize:
3232 daemonize = 1;
3233 break;
3234 #endif
3235 case QEMU_OPTION_option_rom:
3236 if (nb_option_roms >= MAX_OPTION_ROMS) {
3237 fprintf(stderr, "Too many option ROMs\n");
3238 exit(1);
3239 }
3240 option_rom[nb_option_roms] = optarg;
3241 nb_option_roms++;
3242 break;
3243 case QEMU_OPTION_semihosting:
3244 semihosting_enabled = 1;
3245 break;
3246 case QEMU_OPTION_name:
3247 qemu_name = qemu_strdup(optarg);
3248 {
3249 char *p = strchr(qemu_name, ',');
3250 if (p != NULL) {
3251 *p++ = 0;
3252 if (strncmp(p, "process=", 8)) {
3253 fprintf(stderr, "Unknown subargument %s to -name", p);
3254 exit(1);
3255 }
3256 p += 8;
3257 set_proc_name(p);
3258 }
3259 }
3260 break;
3261 case QEMU_OPTION_prom_env:
3262 if (nb_prom_envs >= MAX_PROM_ENVS) {
3263 fprintf(stderr, "Too many prom variables\n");
3264 exit(1);
3265 }
3266 prom_envs[nb_prom_envs] = optarg;
3267 nb_prom_envs++;
3268 break;
3269 case QEMU_OPTION_old_param:
3270 old_param = 1;
3271 break;
3272 case QEMU_OPTION_clock:
3273 configure_alarms(optarg);
3274 break;
3275 case QEMU_OPTION_startdate:
3276 configure_rtc_date_offset(optarg, 1);
3277 break;
3278 case QEMU_OPTION_rtc:
3279 opts = qemu_opts_parse(&qemu_rtc_opts, optarg, 0);
3280 if (!opts) {
3281 fprintf(stderr, "parse error: %s\n", optarg);
3282 exit(1);
3283 }
3284 configure_rtc(opts);
3285 break;
3286 case QEMU_OPTION_tb_size:
3287 tb_size = strtol(optarg, NULL, 0);
3288 if (tb_size < 0)
3289 tb_size = 0;
3290 break;
3291 case QEMU_OPTION_icount:
3292 icount_option = optarg;
3293 break;
3294 case QEMU_OPTION_incoming:
3295 incoming = optarg;
3296 break;
3297 case QEMU_OPTION_nodefaults:
3298 default_serial = 0;
3299 default_parallel = 0;
3300 default_virtcon = 0;
3301 default_monitor = 0;
3302 default_vga = 0;
3303 default_net = 0;
3304 default_floppy = 0;
3305 default_cdrom = 0;
3306 default_sdcard = 0;
3307 break;
3308 #ifndef _WIN32
3309 case QEMU_OPTION_chroot:
3310 chroot_dir = optarg;
3311 break;
3312 case QEMU_OPTION_runas:
3313 run_as = optarg;
3314 break;
3315 #endif
3316 case QEMU_OPTION_xen_domid:
3317 if (!(xen_available())) {
3318 printf("Option %s not supported for this target\n", popt->name);
3319 exit(1);
3320 }
3321 xen_domid = atoi(optarg);
3322 break;
3323 case QEMU_OPTION_xen_create:
3324 if (!(xen_available())) {
3325 printf("Option %s not supported for this target\n", popt->name);
3326 exit(1);
3327 }
3328 xen_mode = XEN_CREATE;
3329 break;
3330 case QEMU_OPTION_xen_attach:
3331 if (!(xen_available())) {
3332 printf("Option %s not supported for this target\n", popt->name);
3333 exit(1);
3334 }
3335 xen_mode = XEN_ATTACH;
3336 break;
3337 case QEMU_OPTION_readconfig:
3338 {
3339 FILE *fp;
3340 fp = fopen(optarg, "r");
3341 if (fp == NULL) {
3342 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
3343 exit(1);
3344 }
3345 if (qemu_config_parse(fp, optarg) != 0) {
3346 exit(1);
3347 }
3348 fclose(fp);
3349 break;
3350 }
3351 case QEMU_OPTION_writeconfig:
3352 {
3353 FILE *fp;
3354 if (strcmp(optarg, "-") == 0) {
3355 fp = stdout;
3356 } else {
3357 fp = fopen(optarg, "w");
3358 if (fp == NULL) {
3359 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
3360 exit(1);
3361 }
3362 }
3363 qemu_config_write(fp);
3364 fclose(fp);
3365 break;
3366 }
3367 }
3368 }
3369 }
3370 loc_set_none();
3371
3372 /* If no data_dir is specified then try to find it relative to the
3373 executable path. */
3374 if (!data_dir) {
3375 data_dir = find_datadir(argv[0]);
3376 }
3377 /* If all else fails use the install patch specified when building. */
3378 if (!data_dir) {
3379 data_dir = CONFIG_QEMU_SHAREDIR;
3380 }
3381
3382 /*
3383 * Default to max_cpus = smp_cpus, in case the user doesn't
3384 * specify a max_cpus value.
3385 */
3386 if (!max_cpus)
3387 max_cpus = smp_cpus;
3388
3389 machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
3390 if (smp_cpus > machine->max_cpus) {
3391 fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
3392 "supported by machine `%s' (%d)\n", smp_cpus, machine->name,
3393 machine->max_cpus);
3394 exit(1);
3395 }
3396
3397 qemu_opts_foreach(&qemu_device_opts, default_driver_check, NULL, 0);
3398 qemu_opts_foreach(&qemu_global_opts, default_driver_check, NULL, 0);
3399
3400 if (machine->no_serial) {
3401 default_serial = 0;
3402 }
3403 if (machine->no_parallel) {
3404 default_parallel = 0;
3405 }
3406 if (!machine->use_virtcon) {
3407 default_virtcon = 0;
3408 }
3409 if (machine->no_vga) {
3410 default_vga = 0;
3411 }
3412 if (machine->no_floppy) {
3413 default_floppy = 0;
3414 }
3415 if (machine->no_cdrom) {
3416 default_cdrom = 0;
3417 }
3418 if (machine->no_sdcard) {
3419 default_sdcard = 0;
3420 }
3421
3422 if (display_type == DT_NOGRAPHIC) {
3423 if (default_parallel)
3424 add_device_config(DEV_PARALLEL, "null");
3425 if (default_serial && default_monitor) {
3426 add_device_config(DEV_SERIAL, "mon:stdio");
3427 } else if (default_virtcon && default_monitor) {
3428 add_device_config(DEV_VIRTCON, "mon:stdio");
3429 } else {
3430 if (default_serial)
3431 add_device_config(DEV_SERIAL, "stdio");
3432 if (default_virtcon)
3433 add_device_config(DEV_VIRTCON, "stdio");
3434 if (default_monitor)
3435 monitor_parse("stdio", "readline");
3436 }
3437 } else {
3438 if (default_serial)
3439 add_device_config(DEV_SERIAL, "vc:80Cx24C");
3440 if (default_parallel)
3441 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
3442 if (default_monitor)
3443 monitor_parse("vc:80Cx24C", "readline");
3444 if (default_virtcon)
3445 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
3446 }
3447 if (default_vga)
3448 vga_interface_type = VGA_CIRRUS;
3449
3450 if (qemu_opts_foreach(&qemu_chardev_opts, chardev_init_func, NULL, 1) != 0)
3451 exit(1);
3452
3453 #ifndef _WIN32
3454 if (daemonize) {
3455 pid_t pid;
3456
3457 if (pipe(fds) == -1)
3458 exit(1);
3459
3460 pid = fork();
3461 if (pid > 0) {
3462 uint8_t status;
3463 ssize_t len;
3464
3465 close(fds[1]);
3466
3467 again:
3468 len = read(fds[0], &status, 1);
3469 if (len == -1 && (errno == EINTR))
3470 goto again;
3471
3472 if (len != 1)
3473 exit(1);
3474 else if (status == 1) {
3475 fprintf(stderr, "Could not acquire pidfile: %s\n", strerror(errno));
3476 exit(1);
3477 } else
3478 exit(0);
3479 } else if (pid < 0)
3480 exit(1);
3481
3482 close(fds[0]);
3483 qemu_set_cloexec(fds[1]);
3484
3485 setsid();
3486
3487 pid = fork();
3488 if (pid > 0)
3489 exit(0);
3490 else if (pid < 0)
3491 exit(1);
3492
3493 umask(027);
3494
3495 signal(SIGTSTP, SIG_IGN);
3496 signal(SIGTTOU, SIG_IGN);
3497 signal(SIGTTIN, SIG_IGN);
3498 }
3499 #endif
3500
3501 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
3502 #ifndef _WIN32
3503 if (daemonize) {
3504 uint8_t status = 1;
3505 if (write(fds[1], &status, 1) != 1) {
3506 perror("daemonize. Writing to pipe\n");
3507 }
3508 } else
3509 #endif
3510 fprintf(stderr, "Could not acquire pid file: %s\n", strerror(errno));
3511 exit(1);
3512 }
3513
3514 if (kvm_enabled()) {
3515 int ret;
3516
3517 ret = kvm_init(smp_cpus);
3518 if (ret < 0) {
3519 fprintf(stderr, "failed to initialize KVM\n");
3520 exit(1);
3521 }
3522 }
3523
3524 if (qemu_init_main_loop()) {
3525 fprintf(stderr, "qemu_init_main_loop failed\n");
3526 exit(1);
3527 }
3528 linux_boot = (kernel_filename != NULL);
3529
3530 if (!linux_boot && *kernel_cmdline != '\0') {
3531 fprintf(stderr, "-append only allowed with -kernel option\n");
3532 exit(1);
3533 }
3534
3535 if (!linux_boot && initrd_filename != NULL) {
3536 fprintf(stderr, "-initrd only allowed with -kernel option\n");
3537 exit(1);
3538 }
3539
3540 #ifndef _WIN32
3541 /* Win32 doesn't support line-buffering and requires size >= 2 */
3542 setvbuf(stdout, NULL, _IOLBF, 0);
3543 #endif
3544
3545 if (init_timer_alarm() < 0) {
3546 fprintf(stderr, "could not initialize alarm timer\n");
3547 exit(1);
3548 }
3549 configure_icount(icount_option);
3550
3551 socket_init();
3552
3553 if (net_init_clients() < 0) {
3554 exit(1);
3555 }
3556
3557 /* init the bluetooth world */
3558 if (foreach_device_config(DEV_BT, bt_parse))
3559 exit(1);
3560
3561 /* init the memory */
3562 if (ram_size == 0)
3563 ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
3564
3565 /* init the dynamic translator */
3566 cpu_exec_init_all(tb_size * 1024 * 1024);
3567
3568 bdrv_init_with_whitelist();
3569
3570 blk_mig_init();
3571
3572 if (default_cdrom) {
3573 /* we always create the cdrom drive, even if no disk is there */
3574 drive_add(NULL, CDROM_ALIAS);
3575 }
3576
3577 if (default_floppy) {
3578 /* we always create at least one floppy */
3579 drive_add(NULL, FD_ALIAS, 0);
3580 }
3581
3582 if (default_sdcard) {
3583 /* we always create one sd slot, even if no card is in it */
3584 drive_add(NULL, SD_ALIAS);
3585 }
3586
3587 /* open the virtual block devices */
3588 if (snapshot)
3589 qemu_opts_foreach(&qemu_drive_opts, drive_enable_snapshot, NULL, 0);
3590 if (qemu_opts_foreach(&qemu_drive_opts, drive_init_func, machine, 1) != 0)
3591 exit(1);
3592
3593 register_savevm_live("ram", 0, 3, NULL, ram_save_live, NULL,
3594 ram_load, NULL);
3595
3596 if (nb_numa_nodes > 0) {
3597 int i;
3598
3599 if (nb_numa_nodes > smp_cpus) {
3600 nb_numa_nodes = smp_cpus;
3601 }
3602
3603 /* If no memory size if given for any node, assume the default case
3604 * and distribute the available memory equally across all nodes
3605 */
3606 for (i = 0; i < nb_numa_nodes; i++) {
3607 if (node_mem[i] != 0)
3608 break;
3609 }
3610 if (i == nb_numa_nodes) {
3611 uint64_t usedmem = 0;
3612
3613 /* On Linux, the each node's border has to be 8MB aligned,
3614 * the final node gets the rest.
3615 */
3616 for (i = 0; i < nb_numa_nodes - 1; i++) {
3617 node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1);
3618 usedmem += node_mem[i];
3619 }
3620 node_mem[i] = ram_size - usedmem;
3621 }
3622
3623 for (i = 0; i < nb_numa_nodes; i++) {
3624 if (node_cpumask[i] != 0)
3625 break;
3626 }
3627 /* assigning the VCPUs round-robin is easier to implement, guest OSes
3628 * must cope with this anyway, because there are BIOSes out there in
3629 * real machines which also use this scheme.
3630 */
3631 if (i == nb_numa_nodes) {
3632 for (i = 0; i < smp_cpus; i++) {
3633 node_cpumask[i % nb_numa_nodes] |= 1 << i;
3634 }
3635 }
3636 }
3637
3638 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
3639 exit(1);
3640 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
3641 exit(1);
3642 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
3643 exit(1);
3644 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
3645 exit(1);
3646
3647 module_call_init(MODULE_INIT_DEVICE);
3648
3649 if (qemu_opts_foreach(&qemu_device_opts, device_help_func, NULL, 0) != 0)
3650 exit(0);
3651
3652 if (watchdog) {
3653 i = select_watchdog(watchdog);
3654 if (i > 0)
3655 exit (i == 1 ? 1 : 0);
3656 }
3657
3658 if (machine->compat_props) {
3659 qdev_prop_register_global_list(machine->compat_props);
3660 }
3661 qemu_add_globals();
3662
3663 machine->init(ram_size, boot_devices,
3664 kernel_filename, kernel_cmdline, initrd_filename, cpu_model);
3665
3666 cpu_synchronize_all_post_init();
3667
3668 #ifndef _WIN32
3669 /* must be after terminal init, SDL library changes signal handlers */
3670 sighandler_setup();
3671 #endif
3672
3673 set_numa_modes();
3674
3675 current_machine = machine;
3676
3677 /* init USB devices */
3678 if (usb_enabled) {
3679 if (foreach_device_config(DEV_USB, usb_parse) < 0)
3680 exit(1);
3681 }
3682
3683 /* init generic devices */
3684 if (qemu_opts_foreach(&qemu_device_opts, device_init_func, NULL, 1) != 0)
3685 exit(1);
3686
3687 net_check_clients();
3688
3689 /* just use the first displaystate for the moment */
3690 ds = get_displaystate();
3691
3692 if (display_type == DT_DEFAULT) {
3693 #if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
3694 display_type = DT_SDL;
3695 #else
3696 display_type = DT_VNC;
3697 vnc_display = "localhost:0,to=99";
3698 show_vnc_port = 1;
3699 #endif
3700 }
3701
3702
3703 switch (display_type) {
3704 case DT_NOGRAPHIC:
3705 break;
3706 #if defined(CONFIG_CURSES)
3707 case DT_CURSES:
3708 curses_display_init(ds, full_screen);
3709 break;
3710 #endif
3711 #if defined(CONFIG_SDL)
3712 case DT_SDL:
3713 sdl_display_init(ds, full_screen, no_frame);
3714 break;
3715 #elif defined(CONFIG_COCOA)
3716 case DT_SDL:
3717 cocoa_display_init(ds, full_screen);
3718 break;
3719 #endif
3720 case DT_VNC:
3721 vnc_display_init(ds);
3722 if (vnc_display_open(ds, vnc_display) < 0)
3723 exit(1);
3724
3725 if (show_vnc_port) {
3726 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
3727 }
3728 break;
3729 default:
3730 break;
3731 }
3732 dpy_resize(ds);
3733
3734 dcl = ds->listeners;
3735 while (dcl != NULL) {
3736 if (dcl->dpy_refresh != NULL) {
3737 ds->gui_timer = qemu_new_timer(rt_clock, gui_update, ds);
3738 qemu_mod_timer(ds->gui_timer, qemu_get_clock(rt_clock));
3739 }
3740 dcl = dcl->next;
3741 }
3742
3743 if (display_type == DT_NOGRAPHIC || display_type == DT_VNC) {
3744 nographic_timer = qemu_new_timer(rt_clock, nographic_update, NULL);
3745 qemu_mod_timer(nographic_timer, qemu_get_clock(rt_clock));
3746 }
3747
3748 text_consoles_set_display(ds);
3749
3750 if (qemu_opts_foreach(&qemu_mon_opts, mon_init_func, NULL, 1) != 0)
3751 exit(1);
3752
3753 if (gdbstub_dev && gdbserver_start(gdbstub_dev) < 0) {
3754 fprintf(stderr, "qemu: could not open gdbserver on device '%s'\n",
3755 gdbstub_dev);
3756 exit(1);
3757 }
3758
3759 qdev_machine_creation_done();
3760
3761 if (rom_load_all() != 0) {
3762 fprintf(stderr, "rom loading failed\n");
3763 exit(1);
3764 }
3765
3766 qemu_system_reset();
3767 if (loadvm) {
3768 if (load_vmstate(loadvm) < 0) {
3769 autostart = 0;
3770 }
3771 }
3772
3773 if (incoming) {
3774 qemu_start_incoming_migration(incoming);
3775 } else if (autostart) {
3776 vm_start();
3777 }
3778
3779 #ifndef _WIN32
3780 if (daemonize) {
3781 uint8_t status = 0;
3782 ssize_t len;
3783
3784 again1:
3785 len = write(fds[1], &status, 1);
3786 if (len == -1 && (errno == EINTR))
3787 goto again1;
3788
3789 if (len != 1)
3790 exit(1);
3791
3792 if (chdir("/")) {
3793 perror("not able to chdir to /");
3794 exit(1);
3795 }
3796 TFR(fd = qemu_open("/dev/null", O_RDWR));
3797 if (fd == -1)
3798 exit(1);
3799 }
3800
3801 if (run_as) {
3802 pwd = getpwnam(run_as);
3803 if (!pwd) {
3804 fprintf(stderr, "User \"%s\" doesn't exist\n", run_as);
3805 exit(1);
3806 }
3807 }
3808
3809 if (chroot_dir) {
3810 if (chroot(chroot_dir) < 0) {
3811 fprintf(stderr, "chroot failed\n");
3812 exit(1);
3813 }
3814 if (chdir("/")) {
3815 perror("not able to chdir to /");
3816 exit(1);
3817 }
3818 }
3819
3820 if (run_as) {
3821 if (setgid(pwd->pw_gid) < 0) {
3822 fprintf(stderr, "Failed to setgid(%d)\n", pwd->pw_gid);
3823 exit(1);
3824 }
3825 if (setuid(pwd->pw_uid) < 0) {
3826 fprintf(stderr, "Failed to setuid(%d)\n", pwd->pw_uid);
3827 exit(1);
3828 }
3829 if (setuid(0) != -1) {
3830 fprintf(stderr, "Dropping privileges failed\n");
3831 exit(1);
3832 }
3833 }
3834
3835 if (daemonize) {
3836 dup2(fd, 0);
3837 dup2(fd, 1);
3838 dup2(fd, 2);
3839
3840 close(fd);
3841 }
3842 #endif
3843
3844 main_loop();
3845 quit_timers();
3846 net_cleanup();
3847
3848 return 0;
3849 }
Qemu copy for testing