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Merge remote branch 'qemu-kvm/uq/master' into HEAD
[qemu/aliguori-queue.git] / vl.c
blob5e03b72f7470b8a342d9bf50cfea9166a26856c1
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 return NULL;
667 }
668 if (file)
669 qemu_opt_set(opts, "file", file);
670 return opts;
671 }
672
673 DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit)
674 {
675 DriveInfo *dinfo;
676
677 /* seek interface, bus and unit */
678
679 QTAILQ_FOREACH(dinfo, &drives, next) {
680 if (dinfo->type == type &&
681 dinfo->bus == bus &&
682 dinfo->unit == unit)
683 return dinfo;
684 }
685
686 return NULL;
687 }
688
689 DriveInfo *drive_get_by_id(const char *id)
690 {
691 DriveInfo *dinfo;
692
693 QTAILQ_FOREACH(dinfo, &drives, next) {
694 if (strcmp(id, dinfo->id))
695 continue;
696 return dinfo;
697 }
698 return NULL;
699 }
700
701 int drive_get_max_bus(BlockInterfaceType type)
702 {
703 int max_bus;
704 DriveInfo *dinfo;
705
706 max_bus = -1;
707 QTAILQ_FOREACH(dinfo, &drives, next) {
708 if(dinfo->type == type &&
709 dinfo->bus > max_bus)
710 max_bus = dinfo->bus;
711 }
712 return max_bus;
713 }
714
715 const char *drive_get_serial(BlockDriverState *bdrv)
716 {
717 DriveInfo *dinfo;
718
719 QTAILQ_FOREACH(dinfo, &drives, next) {
720 if (dinfo->bdrv == bdrv)
721 return dinfo->serial;
722 }
723
724 return "\0";
725 }
726
727 BlockInterfaceErrorAction drive_get_on_error(
728 BlockDriverState *bdrv, int is_read)
729 {
730 DriveInfo *dinfo;
731
732 QTAILQ_FOREACH(dinfo, &drives, next) {
733 if (dinfo->bdrv == bdrv)
734 return is_read ? dinfo->on_read_error : dinfo->on_write_error;
735 }
736
737 return is_read ? BLOCK_ERR_REPORT : BLOCK_ERR_STOP_ENOSPC;
738 }
739
740 static void bdrv_format_print(void *opaque, const char *name)
741 {
742 fprintf(stderr, " %s", name);
743 }
744
745 void drive_uninit(DriveInfo *dinfo)
746 {
747 qemu_opts_del(dinfo->opts);
748 bdrv_delete(dinfo->bdrv);
749 QTAILQ_REMOVE(&drives, dinfo, next);
750 qemu_free(dinfo);
751 }
752
753 static int parse_block_error_action(const char *buf, int is_read)
754 {
755 if (!strcmp(buf, "ignore")) {
756 return BLOCK_ERR_IGNORE;
757 } else if (!is_read && !strcmp(buf, "enospc")) {
758 return BLOCK_ERR_STOP_ENOSPC;
759 } else if (!strcmp(buf, "stop")) {
760 return BLOCK_ERR_STOP_ANY;
761 } else if (!strcmp(buf, "report")) {
762 return BLOCK_ERR_REPORT;
763 } else {
764 fprintf(stderr, "qemu: '%s' invalid %s error action\n",
765 buf, is_read ? "read" : "write");
766 return -1;
767 }
768 }
769
770 DriveInfo *drive_init(QemuOpts *opts, void *opaque,
771 int *fatal_error)
772 {
773 const char *buf;
774 const char *file = NULL;
775 char devname[128];
776 const char *serial;
777 const char *mediastr = "";
778 BlockInterfaceType type;
779 enum { MEDIA_DISK, MEDIA_CDROM } media;
780 int bus_id, unit_id;
781 int cyls, heads, secs, translation;
782 BlockDriver *drv = NULL;
783 QEMUMachine *machine = opaque;
784 int max_devs;
785 int index;
786 int ro = 0;
787 int bdrv_flags = 0;
788 int on_read_error, on_write_error;
789 const char *devaddr;
790 DriveInfo *dinfo;
791 int snapshot = 0;
792
793 *fatal_error = 1;
794
795 translation = BIOS_ATA_TRANSLATION_AUTO;
796
797 if (machine && machine->use_scsi) {
798 type = IF_SCSI;
799 max_devs = MAX_SCSI_DEVS;
800 pstrcpy(devname, sizeof(devname), "scsi");
801 } else {
802 type = IF_IDE;
803 max_devs = MAX_IDE_DEVS;
804 pstrcpy(devname, sizeof(devname), "ide");
805 }
806 media = MEDIA_DISK;
807
808 /* extract parameters */
809 bus_id = qemu_opt_get_number(opts, "bus", 0);
810 unit_id = qemu_opt_get_number(opts, "unit", -1);
811 index = qemu_opt_get_number(opts, "index", -1);
812
813 cyls = qemu_opt_get_number(opts, "cyls", 0);
814 heads = qemu_opt_get_number(opts, "heads", 0);
815 secs = qemu_opt_get_number(opts, "secs", 0);
816
817 snapshot = qemu_opt_get_bool(opts, "snapshot", 0);
818 ro = qemu_opt_get_bool(opts, "readonly", 0);
819
820 file = qemu_opt_get(opts, "file");
821 serial = qemu_opt_get(opts, "serial");
822
823 if ((buf = qemu_opt_get(opts, "if")) != NULL) {
824 pstrcpy(devname, sizeof(devname), buf);
825 if (!strcmp(buf, "ide")) {
826 type = IF_IDE;
827 max_devs = MAX_IDE_DEVS;
828 } else if (!strcmp(buf, "scsi")) {
829 type = IF_SCSI;
830 max_devs = MAX_SCSI_DEVS;
831 } else if (!strcmp(buf, "floppy")) {
832 type = IF_FLOPPY;
833 max_devs = 0;
834 } else if (!strcmp(buf, "pflash")) {
835 type = IF_PFLASH;
836 max_devs = 0;
837 } else if (!strcmp(buf, "mtd")) {
838 type = IF_MTD;
839 max_devs = 0;
840 } else if (!strcmp(buf, "sd")) {
841 type = IF_SD;
842 max_devs = 0;
843 } else if (!strcmp(buf, "virtio")) {
844 type = IF_VIRTIO;
845 max_devs = 0;
846 } else if (!strcmp(buf, "xen")) {
847 type = IF_XEN;
848 max_devs = 0;
849 } else if (!strcmp(buf, "none")) {
850 type = IF_NONE;
851 max_devs = 0;
852 } else {
853 fprintf(stderr, "qemu: unsupported bus type '%s'\n", buf);
854 return NULL;
855 }
856 }
857
858 if (cyls || heads || secs) {
859 if (cyls < 1 || (type == IF_IDE && cyls > 16383)) {
860 fprintf(stderr, "qemu: '%s' invalid physical cyls number\n", buf);
861 return NULL;
862 }
863 if (heads < 1 || (type == IF_IDE && heads > 16)) {
864 fprintf(stderr, "qemu: '%s' invalid physical heads number\n", buf);
865 return NULL;
866 }
867 if (secs < 1 || (type == IF_IDE && secs > 63)) {
868 fprintf(stderr, "qemu: '%s' invalid physical secs number\n", buf);
869 return NULL;
870 }
871 }
872
873 if ((buf = qemu_opt_get(opts, "trans")) != NULL) {
874 if (!cyls) {
875 fprintf(stderr,
876 "qemu: '%s' trans must be used with cyls,heads and secs\n",
877 buf);
878 return NULL;
879 }
880 if (!strcmp(buf, "none"))
881 translation = BIOS_ATA_TRANSLATION_NONE;
882 else if (!strcmp(buf, "lba"))
883 translation = BIOS_ATA_TRANSLATION_LBA;
884 else if (!strcmp(buf, "auto"))
885 translation = BIOS_ATA_TRANSLATION_AUTO;
886 else {
887 fprintf(stderr, "qemu: '%s' invalid translation type\n", buf);
888 return NULL;
889 }
890 }
891
892 if ((buf = qemu_opt_get(opts, "media")) != NULL) {
893 if (!strcmp(buf, "disk")) {
894 media = MEDIA_DISK;
895 } else if (!strcmp(buf, "cdrom")) {
896 if (cyls || secs || heads) {
897 fprintf(stderr,
898 "qemu: '%s' invalid physical CHS format\n", buf);
899 return NULL;
900 }
901 media = MEDIA_CDROM;
902 } else {
903 fprintf(stderr, "qemu: '%s' invalid media\n", buf);
904 return NULL;
905 }
906 }
907
908 if ((buf = qemu_opt_get(opts, "cache")) != NULL) {
909 if (!strcmp(buf, "off") || !strcmp(buf, "none")) {
910 bdrv_flags |= BDRV_O_NOCACHE;
911 } else if (!strcmp(buf, "writeback")) {
912 bdrv_flags |= BDRV_O_CACHE_WB;
913 } else if (!strcmp(buf, "writethrough")) {
914 /* this is the default */
915 } else {
916 fprintf(stderr, "qemu: invalid cache option\n");
917 return NULL;
918 }
919 }
920
921 #ifdef CONFIG_LINUX_AIO
922 if ((buf = qemu_opt_get(opts, "aio")) != NULL) {
923 if (!strcmp(buf, "native")) {
924 bdrv_flags |= BDRV_O_NATIVE_AIO;
925 } else if (!strcmp(buf, "threads")) {
926 /* this is the default */
927 } else {
928 fprintf(stderr, "qemu: invalid aio option\n");
929 return NULL;
930 }
931 }
932 #endif
933
934 if ((buf = qemu_opt_get(opts, "format")) != NULL) {
935 if (strcmp(buf, "?") == 0) {
936 fprintf(stderr, "qemu: Supported formats:");
937 bdrv_iterate_format(bdrv_format_print, NULL);
938 fprintf(stderr, "\n");
939 return NULL;
940 }
941 drv = bdrv_find_whitelisted_format(buf);
942 if (!drv) {
943 fprintf(stderr, "qemu: '%s' invalid format\n", buf);
944 return NULL;
945 }
946 }
947
948 on_write_error = BLOCK_ERR_STOP_ENOSPC;
949 if ((buf = qemu_opt_get(opts, "werror")) != NULL) {
950 if (type != IF_IDE && type != IF_SCSI && type != IF_VIRTIO) {
951 fprintf(stderr, "werror is no supported by this format\n");
952 return NULL;
953 }
954
955 on_write_error = parse_block_error_action(buf, 0);
956 if (on_write_error < 0) {
957 return NULL;
958 }
959 }
960
961 on_read_error = BLOCK_ERR_REPORT;
962 if ((buf = qemu_opt_get(opts, "rerror")) != NULL) {
963 if (type != IF_IDE && type != IF_VIRTIO) {
964 fprintf(stderr, "rerror is no supported by this format\n");
965 return NULL;
966 }
967
968 on_read_error = parse_block_error_action(buf, 1);
969 if (on_read_error < 0) {
970 return NULL;
971 }
972 }
973
974 if ((devaddr = qemu_opt_get(opts, "addr")) != NULL) {
975 if (type != IF_VIRTIO) {
976 fprintf(stderr, "addr is not supported\n");
977 return NULL;
978 }
979 }
980
981 /* compute bus and unit according index */
982
983 if (index != -1) {
984 if (bus_id != 0 || unit_id != -1) {
985 fprintf(stderr,
986 "qemu: index cannot be used with bus and unit\n");
987 return NULL;
988 }
989 if (max_devs == 0)
990 {
991 unit_id = index;
992 bus_id = 0;
993 } else {
994 unit_id = index % max_devs;
995 bus_id = index / max_devs;
996 }
997 }
998
999 /* if user doesn't specify a unit_id,
1000 * try to find the first free
1001 */
1002
1003 if (unit_id == -1) {
1004 unit_id = 0;
1005 while (drive_get(type, bus_id, unit_id) != NULL) {
1006 unit_id++;
1007 if (max_devs && unit_id >= max_devs) {
1008 unit_id -= max_devs;
1009 bus_id++;
1010 }
1011 }
1012 }
1013
1014 /* check unit id */
1015
1016 if (max_devs && unit_id >= max_devs) {
1017 fprintf(stderr, "qemu: unit %d too big (max is %d)\n",
1018 unit_id, max_devs - 1);
1019 return NULL;
1020 }
1021
1022 /*
1023 * ignore multiple definitions
1024 */
1025
1026 if (drive_get(type, bus_id, unit_id) != NULL) {
1027 *fatal_error = 0;
1028 return NULL;
1029 }
1030
1031 /* init */
1032
1033 dinfo = qemu_mallocz(sizeof(*dinfo));
1034 if ((buf = qemu_opts_id(opts)) != NULL) {
1035 dinfo->id = qemu_strdup(buf);
1036 } else {
1037 /* no id supplied -> create one */
1038 dinfo->id = qemu_mallocz(32);
1039 if (type == IF_IDE || type == IF_SCSI)
1040 mediastr = (media == MEDIA_CDROM) ? "-cd" : "-hd";
1041 if (max_devs)
1042 snprintf(dinfo->id, 32, "%s%i%s%i",
1043 devname, bus_id, mediastr, unit_id);
1044 else
1045 snprintf(dinfo->id, 32, "%s%s%i",
1046 devname, mediastr, unit_id);
1047 }
1048 dinfo->bdrv = bdrv_new(dinfo->id);
1049 dinfo->devaddr = devaddr;
1050 dinfo->type = type;
1051 dinfo->bus = bus_id;
1052 dinfo->unit = unit_id;
1053 dinfo->on_read_error = on_read_error;
1054 dinfo->on_write_error = on_write_error;
1055 dinfo->opts = opts;
1056 if (serial)
1057 strncpy(dinfo->serial, serial, sizeof(serial));
1058 QTAILQ_INSERT_TAIL(&drives, dinfo, next);
1059
1060 switch(type) {
1061 case IF_IDE:
1062 case IF_SCSI:
1063 case IF_XEN:
1064 case IF_NONE:
1065 switch(media) {
1066 case MEDIA_DISK:
1067 if (cyls != 0) {
1068 bdrv_set_geometry_hint(dinfo->bdrv, cyls, heads, secs);
1069 bdrv_set_translation_hint(dinfo->bdrv, translation);
1070 }
1071 break;
1072 case MEDIA_CDROM:
1073 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_CDROM);
1074 break;
1075 }
1076 break;
1077 case IF_SD:
1078 /* FIXME: This isn't really a floppy, but it's a reasonable
1079 approximation. */
1080 case IF_FLOPPY:
1081 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_FLOPPY);
1082 break;
1083 case IF_PFLASH:
1084 case IF_MTD:
1085 break;
1086 case IF_VIRTIO:
1087 /* add virtio block device */
1088 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
1089 qemu_opt_set(opts, "driver", "virtio-blk-pci");
1090 qemu_opt_set(opts, "drive", dinfo->id);
1091 if (devaddr)
1092 qemu_opt_set(opts, "addr", devaddr);
1093 break;
1094 case IF_COUNT:
1095 abort();
1096 }
1097 if (!file) {
1098 *fatal_error = 0;
1099 return NULL;
1100 }
1101 if (snapshot) {
1102 /* always use write-back with snapshot */
1103 bdrv_flags &= ~BDRV_O_CACHE_MASK;
1104 bdrv_flags |= (BDRV_O_SNAPSHOT|BDRV_O_CACHE_WB);
1105 }
1106
1107 if (media == MEDIA_CDROM) {
1108 /* CDROM is fine for any interface, don't check. */
1109 ro = 1;
1110 } else if (ro == 1) {
1111 if (type != IF_SCSI && type != IF_VIRTIO && type != IF_FLOPPY) {
1112 fprintf(stderr, "qemu: readonly flag not supported for drive with this interface\n");
1113 return NULL;
1114 }
1115 }
1116
1117 bdrv_flags |= ro ? 0 : BDRV_O_RDWR;
1118
1119 if (bdrv_open(dinfo->bdrv, file, bdrv_flags, drv) < 0) {
1120 fprintf(stderr, "qemu: could not open disk image %s: %s\n",
1121 file, strerror(errno));
1122 return NULL;
1123 }
1124
1125 if (bdrv_key_required(dinfo->bdrv))
1126 autostart = 0;
1127 *fatal_error = 0;
1128 return dinfo;
1129 }
1130
1131 static int drive_init_func(QemuOpts *opts, void *opaque)
1132 {
1133 QEMUMachine *machine = opaque;
1134 int fatal_error = 0;
1135
1136 if (drive_init(opts, machine, &fatal_error) == NULL) {
1137 if (fatal_error)
1138 return 1;
1139 }
1140 return 0;
1141 }
1142
1143 static int drive_enable_snapshot(QemuOpts *opts, void *opaque)
1144 {
1145 if (NULL == qemu_opt_get(opts, "snapshot")) {
1146 qemu_opt_set(opts, "snapshot", "on");
1147 }
1148 return 0;
1149 }
1150
1151 void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
1152 {
1153 boot_set_handler = func;
1154 boot_set_opaque = opaque;
1155 }
1156
1157 int qemu_boot_set(const char *boot_devices)
1158 {
1159 if (!boot_set_handler) {
1160 return -EINVAL;
1161 }
1162 return boot_set_handler(boot_set_opaque, boot_devices);
1163 }
1164
1165 static void validate_bootdevices(char *devices)
1166 {
1167 /* We just do some generic consistency checks */
1168 const char *p;
1169 int bitmap = 0;
1170
1171 for (p = devices; *p != '\0'; p++) {
1172 /* Allowed boot devices are:
1173 * a-b: floppy disk drives
1174 * c-f: IDE disk drives
1175 * g-m: machine implementation dependant drives
1176 * n-p: network devices
1177 * It's up to each machine implementation to check if the given boot
1178 * devices match the actual hardware implementation and firmware
1179 * features.
1180 */
1181 if (*p < 'a' || *p > 'p') {
1182 fprintf(stderr, "Invalid boot device '%c'\n", *p);
1183 exit(1);
1184 }
1185 if (bitmap & (1 << (*p - 'a'))) {
1186 fprintf(stderr, "Boot device '%c' was given twice\n", *p);
1187 exit(1);
1188 }
1189 bitmap |= 1 << (*p - 'a');
1190 }
1191 }
1192
1193 static void restore_boot_devices(void *opaque)
1194 {
1195 char *standard_boot_devices = opaque;
1196
1197 qemu_boot_set(standard_boot_devices);
1198
1199 qemu_unregister_reset(restore_boot_devices, standard_boot_devices);
1200 qemu_free(standard_boot_devices);
1201 }
1202
1203 static void numa_add(const char *optarg)
1204 {
1205 char option[128];
1206 char *endptr;
1207 unsigned long long value, endvalue;
1208 int nodenr;
1209
1210 optarg = get_opt_name(option, 128, optarg, ',') + 1;
1211 if (!strcmp(option, "node")) {
1212 if (get_param_value(option, 128, "nodeid", optarg) == 0) {
1213 nodenr = nb_numa_nodes;
1214 } else {
1215 nodenr = strtoull(option, NULL, 10);
1216 }
1217
1218 if (get_param_value(option, 128, "mem", optarg) == 0) {
1219 node_mem[nodenr] = 0;
1220 } else {
1221 value = strtoull(option, &endptr, 0);
1222 switch (*endptr) {
1223 case 0: case 'M': case 'm':
1224 value <<= 20;
1225 break;
1226 case 'G': case 'g':
1227 value <<= 30;
1228 break;
1229 }
1230 node_mem[nodenr] = value;
1231 }
1232 if (get_param_value(option, 128, "cpus", optarg) == 0) {
1233 node_cpumask[nodenr] = 0;
1234 } else {
1235 value = strtoull(option, &endptr, 10);
1236 if (value >= 64) {
1237 value = 63;
1238 fprintf(stderr, "only 64 CPUs in NUMA mode supported.\n");
1239 } else {
1240 if (*endptr == '-') {
1241 endvalue = strtoull(endptr+1, &endptr, 10);
1242 if (endvalue >= 63) {
1243 endvalue = 62;
1244 fprintf(stderr,
1245 "only 63 CPUs in NUMA mode supported.\n");
1246 }
1247 value = (2ULL << endvalue) - (1ULL << value);
1248 } else {
1249 value = 1ULL << value;
1250 }
1251 }
1252 node_cpumask[nodenr] = value;
1253 }
1254 nb_numa_nodes++;
1255 }
1256 return;
1257 }
1258
1259 static void smp_parse(const char *optarg)
1260 {
1261 int smp, sockets = 0, threads = 0, cores = 0;
1262 char *endptr;
1263 char option[128];
1264
1265 smp = strtoul(optarg, &endptr, 10);
1266 if (endptr != optarg) {
1267 if (*endptr == ',') {
1268 endptr++;
1269 }
1270 }
1271 if (get_param_value(option, 128, "sockets", endptr) != 0)
1272 sockets = strtoull(option, NULL, 10);
1273 if (get_param_value(option, 128, "cores", endptr) != 0)
1274 cores = strtoull(option, NULL, 10);
1275 if (get_param_value(option, 128, "threads", endptr) != 0)
1276 threads = strtoull(option, NULL, 10);
1277 if (get_param_value(option, 128, "maxcpus", endptr) != 0)
1278 max_cpus = strtoull(option, NULL, 10);
1279
1280 /* compute missing values, prefer sockets over cores over threads */
1281 if (smp == 0 || sockets == 0) {
1282 sockets = sockets > 0 ? sockets : 1;
1283 cores = cores > 0 ? cores : 1;
1284 threads = threads > 0 ? threads : 1;
1285 if (smp == 0) {
1286 smp = cores * threads * sockets;
1287 }
1288 } else {
1289 if (cores == 0) {
1290 threads = threads > 0 ? threads : 1;
1291 cores = smp / (sockets * threads);
1292 } else {
1293 if (sockets) {
1294 threads = smp / (cores * sockets);
1295 }
1296 }
1297 }
1298 smp_cpus = smp;
1299 smp_cores = cores > 0 ? cores : 1;
1300 smp_threads = threads > 0 ? threads : 1;
1301 if (max_cpus == 0)
1302 max_cpus = smp_cpus;
1303 }
1304
1305 /***********************************************************/
1306 /* USB devices */
1307
1308 static int usb_device_add(const char *devname, int is_hotplug)
1309 {
1310 const char *p;
1311 USBDevice *dev = NULL;
1312
1313 if (!usb_enabled)
1314 return -1;
1315
1316 /* drivers with .usbdevice_name entry in USBDeviceInfo */
1317 dev = usbdevice_create(devname);
1318 if (dev)
1319 goto done;
1320
1321 /* the other ones */
1322 if (strstart(devname, "host:", &p)) {
1323 dev = usb_host_device_open(p);
1324 } else if (!strcmp(devname, "bt") || strstart(devname, "bt:", &p)) {
1325 dev = usb_bt_init(devname[2] ? hci_init(p) :
1326 bt_new_hci(qemu_find_bt_vlan(0)));
1327 } else {
1328 return -1;
1329 }
1330 if (!dev)
1331 return -1;
1332
1333 done:
1334 return 0;
1335 }
1336
1337 static int usb_device_del(const char *devname)
1338 {
1339 int bus_num, addr;
1340 const char *p;
1341
1342 if (strstart(devname, "host:", &p))
1343 return usb_host_device_close(p);
1344
1345 if (!usb_enabled)
1346 return -1;
1347
1348 p = strchr(devname, '.');
1349 if (!p)
1350 return -1;
1351 bus_num = strtoul(devname, NULL, 0);
1352 addr = strtoul(p + 1, NULL, 0);
1353
1354 return usb_device_delete_addr(bus_num, addr);
1355 }
1356
1357 static int usb_parse(const char *cmdline)
1358 {
1359 int r;
1360 r = usb_device_add(cmdline, 0);
1361 if (r < 0) {
1362 fprintf(stderr, "qemu: could not add USB device '%s'\n", cmdline);
1363 }
1364 return r;
1365 }
1366
1367 void do_usb_add(Monitor *mon, const QDict *qdict)
1368 {
1369 const char *devname = qdict_get_str(qdict, "devname");
1370 if (usb_device_add(devname, 1) < 0) {
1371 error_report("could not add USB device '%s'", devname);
1372 }
1373 }
1374
1375 void do_usb_del(Monitor *mon, const QDict *qdict)
1376 {
1377 const char *devname = qdict_get_str(qdict, "devname");
1378 if (usb_device_del(devname) < 0) {
1379 error_report("could not delete USB device '%s'", devname);
1380 }
1381 }
1382
1383 /***********************************************************/
1384 /* PCMCIA/Cardbus */
1385
1386 static struct pcmcia_socket_entry_s {
1387 PCMCIASocket *socket;
1388 struct pcmcia_socket_entry_s *next;
1389 } *pcmcia_sockets = 0;
1390
1391 void pcmcia_socket_register(PCMCIASocket *socket)
1392 {
1393 struct pcmcia_socket_entry_s *entry;
1394
1395 entry = qemu_malloc(sizeof(struct pcmcia_socket_entry_s));
1396 entry->socket = socket;
1397 entry->next = pcmcia_sockets;
1398 pcmcia_sockets = entry;
1399 }
1400
1401 void pcmcia_socket_unregister(PCMCIASocket *socket)
1402 {
1403 struct pcmcia_socket_entry_s *entry, **ptr;
1404
1405 ptr = &pcmcia_sockets;
1406 for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
1407 if (entry->socket == socket) {
1408 *ptr = entry->next;
1409 qemu_free(entry);
1410 }
1411 }
1412
1413 void pcmcia_info(Monitor *mon)
1414 {
1415 struct pcmcia_socket_entry_s *iter;
1416
1417 if (!pcmcia_sockets)
1418 monitor_printf(mon, "No PCMCIA sockets\n");
1419
1420 for (iter = pcmcia_sockets; iter; iter = iter->next)
1421 monitor_printf(mon, "%s: %s\n", iter->socket->slot_string,
1422 iter->socket->attached ? iter->socket->card_string :
1423 "Empty");
1424 }
1425
1426 /***********************************************************/
1427 /* I/O handling */
1428
1429 typedef struct IOHandlerRecord {
1430 int fd;
1431 IOCanReadHandler *fd_read_poll;
1432 IOHandler *fd_read;
1433 IOHandler *fd_write;
1434 int deleted;
1435 void *opaque;
1436 /* temporary data */
1437 struct pollfd *ufd;
1438 QLIST_ENTRY(IOHandlerRecord) next;
1439 } IOHandlerRecord;
1440
1441 static QLIST_HEAD(, IOHandlerRecord) io_handlers =
1442 QLIST_HEAD_INITIALIZER(io_handlers);
1443
1444
1445 /* XXX: fd_read_poll should be suppressed, but an API change is
1446 necessary in the character devices to suppress fd_can_read(). */
1447 int qemu_set_fd_handler2(int fd,
1448 IOCanReadHandler *fd_read_poll,
1449 IOHandler *fd_read,
1450 IOHandler *fd_write,
1451 void *opaque)
1452 {
1453 IOHandlerRecord *ioh;
1454
1455 if (!fd_read && !fd_write) {
1456 QLIST_FOREACH(ioh, &io_handlers, next) {
1457 if (ioh->fd == fd) {
1458 ioh->deleted = 1;
1459 break;
1460 }
1461 }
1462 } else {
1463 QLIST_FOREACH(ioh, &io_handlers, next) {
1464 if (ioh->fd == fd)
1465 goto found;
1466 }
1467 ioh = qemu_mallocz(sizeof(IOHandlerRecord));
1468 QLIST_INSERT_HEAD(&io_handlers, ioh, next);
1469 found:
1470 ioh->fd = fd;
1471 ioh->fd_read_poll = fd_read_poll;
1472 ioh->fd_read = fd_read;
1473 ioh->fd_write = fd_write;
1474 ioh->opaque = opaque;
1475 ioh->deleted = 0;
1476 }
1477 return 0;
1478 }
1479
1480 int qemu_set_fd_handler(int fd,
1481 IOHandler *fd_read,
1482 IOHandler *fd_write,
1483 void *opaque)
1484 {
1485 return qemu_set_fd_handler2(fd, NULL, fd_read, fd_write, opaque);
1486 }
1487
1488 #ifdef _WIN32
1489 /***********************************************************/
1490 /* Polling handling */
1491
1492 typedef struct PollingEntry {
1493 PollingFunc *func;
1494 void *opaque;
1495 struct PollingEntry *next;
1496 } PollingEntry;
1497
1498 static PollingEntry *first_polling_entry;
1499
1500 int qemu_add_polling_cb(PollingFunc *func, void *opaque)
1501 {
1502 PollingEntry **ppe, *pe;
1503 pe = qemu_mallocz(sizeof(PollingEntry));
1504 pe->func = func;
1505 pe->opaque = opaque;
1506 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next);
1507 *ppe = pe;
1508 return 0;
1509 }
1510
1511 void qemu_del_polling_cb(PollingFunc *func, void *opaque)
1512 {
1513 PollingEntry **ppe, *pe;
1514 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next) {
1515 pe = *ppe;
1516 if (pe->func == func && pe->opaque == opaque) {
1517 *ppe = pe->next;
1518 qemu_free(pe);
1519 break;
1520 }
1521 }
1522 }
1523
1524 /***********************************************************/
1525 /* Wait objects support */
1526 typedef struct WaitObjects {
1527 int num;
1528 HANDLE events[MAXIMUM_WAIT_OBJECTS + 1];
1529 WaitObjectFunc *func[MAXIMUM_WAIT_OBJECTS + 1];
1530 void *opaque[MAXIMUM_WAIT_OBJECTS + 1];
1531 } WaitObjects;
1532
1533 static WaitObjects wait_objects = {0};
1534
1535 int qemu_add_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
1536 {
1537 WaitObjects *w = &wait_objects;
1538
1539 if (w->num >= MAXIMUM_WAIT_OBJECTS)
1540 return -1;
1541 w->events[w->num] = handle;
1542 w->func[w->num] = func;
1543 w->opaque[w->num] = opaque;
1544 w->num++;
1545 return 0;
1546 }
1547
1548 void qemu_del_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
1549 {
1550 int i, found;
1551 WaitObjects *w = &wait_objects;
1552
1553 found = 0;
1554 for (i = 0; i < w->num; i++) {
1555 if (w->events[i] == handle)
1556 found = 1;
1557 if (found) {
1558 w->events[i] = w->events[i + 1];
1559 w->func[i] = w->func[i + 1];
1560 w->opaque[i] = w->opaque[i + 1];
1561 }
1562 }
1563 if (found)
1564 w->num--;
1565 }
1566 #endif
1567
1568 /***********************************************************/
1569 /* machine registration */
1570
1571 static QEMUMachine *first_machine = NULL;
1572 QEMUMachine *current_machine = NULL;
1573
1574 int qemu_register_machine(QEMUMachine *m)
1575 {
1576 QEMUMachine **pm;
1577 pm = &first_machine;
1578 while (*pm != NULL)
1579 pm = &(*pm)->next;
1580 m->next = NULL;
1581 *pm = m;
1582 return 0;
1583 }
1584
1585 static QEMUMachine *find_machine(const char *name)
1586 {
1587 QEMUMachine *m;
1588
1589 for(m = first_machine; m != NULL; m = m->next) {
1590 if (!strcmp(m->name, name))
1591 return m;
1592 if (m->alias && !strcmp(m->alias, name))
1593 return m;
1594 }
1595 return NULL;
1596 }
1597
1598 static QEMUMachine *find_default_machine(void)
1599 {
1600 QEMUMachine *m;
1601
1602 for(m = first_machine; m != NULL; m = m->next) {
1603 if (m->is_default) {
1604 return m;
1605 }
1606 }
1607 return NULL;
1608 }
1609
1610 /***********************************************************/
1611 /* main execution loop */
1612
1613 static void gui_update(void *opaque)
1614 {
1615 uint64_t interval = GUI_REFRESH_INTERVAL;
1616 DisplayState *ds = opaque;
1617 DisplayChangeListener *dcl = ds->listeners;
1618
1619 qemu_flush_coalesced_mmio_buffer();
1620 dpy_refresh(ds);
1621
1622 while (dcl != NULL) {
1623 if (dcl->gui_timer_interval &&
1624 dcl->gui_timer_interval < interval)
1625 interval = dcl->gui_timer_interval;
1626 dcl = dcl->next;
1627 }
1628 qemu_mod_timer(ds->gui_timer, interval + qemu_get_clock(rt_clock));
1629 }
1630
1631 static void nographic_update(void *opaque)
1632 {
1633 uint64_t interval = GUI_REFRESH_INTERVAL;
1634
1635 qemu_flush_coalesced_mmio_buffer();
1636 qemu_mod_timer(nographic_timer, interval + qemu_get_clock(rt_clock));
1637 }
1638
1639 struct vm_change_state_entry {
1640 VMChangeStateHandler *cb;
1641 void *opaque;
1642 QLIST_ENTRY (vm_change_state_entry) entries;
1643 };
1644
1645 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1646
1647 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1648 void *opaque)
1649 {
1650 VMChangeStateEntry *e;
1651
1652 e = qemu_mallocz(sizeof (*e));
1653
1654 e->cb = cb;
1655 e->opaque = opaque;
1656 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1657 return e;
1658 }
1659
1660 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1661 {
1662 QLIST_REMOVE (e, entries);
1663 qemu_free (e);
1664 }
1665
1666 void vm_state_notify(int running, int reason)
1667 {
1668 VMChangeStateEntry *e;
1669
1670 for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
1671 e->cb(e->opaque, running, reason);
1672 }
1673 }
1674
1675 void vm_start(void)
1676 {
1677 if (!vm_running) {
1678 cpu_enable_ticks();
1679 vm_running = 1;
1680 vm_state_notify(1, 0);
1681 resume_all_vcpus();
1682 }
1683 }
1684
1685 /* reset/shutdown handler */
1686
1687 typedef struct QEMUResetEntry {
1688 QTAILQ_ENTRY(QEMUResetEntry) entry;
1689 QEMUResetHandler *func;
1690 void *opaque;
1691 } QEMUResetEntry;
1692
1693 static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
1694 QTAILQ_HEAD_INITIALIZER(reset_handlers);
1695 static int reset_requested;
1696 static int shutdown_requested;
1697 static int powerdown_requested;
1698 int debug_requested;
1699 int vmstop_requested;
1700 static int exit_requested;
1701
1702 int qemu_shutdown_requested(void)
1703 {
1704 int r = shutdown_requested;
1705 shutdown_requested = 0;
1706 return r;
1707 }
1708
1709 int qemu_reset_requested(void)
1710 {
1711 int r = reset_requested;
1712 reset_requested = 0;
1713 return r;
1714 }
1715
1716 int qemu_powerdown_requested(void)
1717 {
1718 int r = powerdown_requested;
1719 powerdown_requested = 0;
1720 return r;
1721 }
1722
1723 int qemu_exit_requested(void)
1724 {
1725 /* just return it, we'll exit() anyway */
1726 return exit_requested;
1727 }
1728
1729 static int qemu_debug_requested(void)
1730 {
1731 int r = debug_requested;
1732 debug_requested = 0;
1733 return r;
1734 }
1735
1736 static int qemu_vmstop_requested(void)
1737 {
1738 int r = vmstop_requested;
1739 vmstop_requested = 0;
1740 return r;
1741 }
1742
1743 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
1744 {
1745 QEMUResetEntry *re = qemu_mallocz(sizeof(QEMUResetEntry));
1746
1747 re->func = func;
1748 re->opaque = opaque;
1749 QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
1750 }
1751
1752 void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
1753 {
1754 QEMUResetEntry *re;
1755
1756 QTAILQ_FOREACH(re, &reset_handlers, entry) {
1757 if (re->func == func && re->opaque == opaque) {
1758 QTAILQ_REMOVE(&reset_handlers, re, entry);
1759 qemu_free(re);
1760 return;
1761 }
1762 }
1763 }
1764
1765 void qemu_system_reset(void)
1766 {
1767 QEMUResetEntry *re, *nre;
1768
1769 /* reset all devices */
1770 QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
1771 re->func(re->opaque);
1772 }
1773 monitor_protocol_event(QEVENT_RESET, NULL);
1774 cpu_synchronize_all_post_reset();
1775 }
1776
1777 void qemu_system_reset_request(void)
1778 {
1779 if (no_reboot) {
1780 shutdown_requested = 1;
1781 } else {
1782 reset_requested = 1;
1783 }
1784 qemu_notify_event();
1785 }
1786
1787 void qemu_system_shutdown_request(void)
1788 {
1789 shutdown_requested = 1;
1790 qemu_notify_event();
1791 }
1792
1793 void qemu_system_powerdown_request(void)
1794 {
1795 powerdown_requested = 1;
1796 qemu_notify_event();
1797 }
1798
1799 void qemu_system_exit_request(void)
1800 {
1801 exit_requested = 1;
1802 qemu_notify_event();
1803 }
1804
1805 #ifdef _WIN32
1806 static void host_main_loop_wait(int *timeout)
1807 {
1808 int ret, ret2, i;
1809 PollingEntry *pe;
1810
1811
1812 /* XXX: need to suppress polling by better using win32 events */
1813 ret = 0;
1814 for(pe = first_polling_entry; pe != NULL; pe = pe->next) {
1815 ret |= pe->func(pe->opaque);
1816 }
1817 if (ret == 0) {
1818 int err;
1819 WaitObjects *w = &wait_objects;
1820
1821 ret = WaitForMultipleObjects(w->num, w->events, FALSE, *timeout);
1822 if (WAIT_OBJECT_0 + 0 <= ret && ret <= WAIT_OBJECT_0 + w->num - 1) {
1823 if (w->func[ret - WAIT_OBJECT_0])
1824 w->func[ret - WAIT_OBJECT_0](w->opaque[ret - WAIT_OBJECT_0]);
1825
1826 /* Check for additional signaled events */
1827 for(i = (ret - WAIT_OBJECT_0 + 1); i < w->num; i++) {
1828
1829 /* Check if event is signaled */
1830 ret2 = WaitForSingleObject(w->events[i], 0);
1831 if(ret2 == WAIT_OBJECT_0) {
1832 if (w->func[i])
1833 w->func[i](w->opaque[i]);
1834 } else if (ret2 == WAIT_TIMEOUT) {
1835 } else {
1836 err = GetLastError();
1837 fprintf(stderr, "WaitForSingleObject error %d %d\n", i, err);
1838 }
1839 }
1840 } else if (ret == WAIT_TIMEOUT) {
1841 } else {
1842 err = GetLastError();
1843 fprintf(stderr, "WaitForMultipleObjects error %d %d\n", ret, err);
1844 }
1845 }
1846
1847 *timeout = 0;
1848 }
1849 #else
1850 static void host_main_loop_wait(int *timeout)
1851 {
1852 }
1853 #endif
1854
1855 void main_loop_wait(int nonblocking)
1856 {
1857 IOHandlerRecord *ioh;
1858 fd_set rfds, wfds, xfds;
1859 int ret, nfds;
1860 struct timeval tv;
1861 int timeout;
1862
1863 if (nonblocking)
1864 timeout = 0;
1865 else {
1866 timeout = qemu_calculate_timeout();
1867 qemu_bh_update_timeout(&timeout);
1868 }
1869
1870 host_main_loop_wait(&timeout);
1871
1872 /* poll any events */
1873 /* XXX: separate device handlers from system ones */
1874 nfds = -1;
1875 FD_ZERO(&rfds);
1876 FD_ZERO(&wfds);
1877 FD_ZERO(&xfds);
1878 QLIST_FOREACH(ioh, &io_handlers, next) {
1879 if (ioh->deleted)
1880 continue;
1881 if (ioh->fd_read &&
1882 (!ioh->fd_read_poll ||
1883 ioh->fd_read_poll(ioh->opaque) != 0)) {
1884 FD_SET(ioh->fd, &rfds);
1885 if (ioh->fd > nfds)
1886 nfds = ioh->fd;
1887 }
1888 if (ioh->fd_write) {
1889 FD_SET(ioh->fd, &wfds);
1890 if (ioh->fd > nfds)
1891 nfds = ioh->fd;
1892 }
1893 }
1894
1895 tv.tv_sec = timeout / 1000;
1896 tv.tv_usec = (timeout % 1000) * 1000;
1897
1898 slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
1899
1900 qemu_mutex_unlock_iothread();
1901 ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
1902 qemu_mutex_lock_iothread();
1903 if (ret > 0) {
1904 IOHandlerRecord *pioh;
1905
1906 QLIST_FOREACH_SAFE(ioh, &io_handlers, next, pioh) {
1907 if (ioh->deleted) {
1908 QLIST_REMOVE(ioh, next);
1909 qemu_free(ioh);
1910 continue;
1911 }
1912 if (ioh->fd_read && FD_ISSET(ioh->fd, &rfds)) {
1913 ioh->fd_read(ioh->opaque);
1914 }
1915 if (ioh->fd_write && FD_ISSET(ioh->fd, &wfds)) {
1916 ioh->fd_write(ioh->opaque);
1917 }
1918 }
1919 }
1920
1921 slirp_select_poll(&rfds, &wfds, &xfds, (ret < 0));
1922
1923 qemu_run_all_timers();
1924
1925 /* Check bottom-halves last in case any of the earlier events triggered
1926 them. */
1927 qemu_bh_poll();
1928
1929 }
1930
1931 static int vm_can_run(void)
1932 {
1933 if (powerdown_requested)
1934 return 0;
1935 if (reset_requested)
1936 return 0;
1937 if (shutdown_requested)
1938 return 0;
1939 if (debug_requested)
1940 return 0;
1941 if (exit_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 if (qemu_exit_requested()) {
1996 exit(0);
1997 }
1998 }
1999 pause_all_vcpus();
2000 }
2001
2002 static void version(void)
2003 {
2004 printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
2005 }
2006
2007 static void help(int exitcode)
2008 {
2009 const char *options_help =
2010 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
2011 opt_help
2012 #define DEFHEADING(text) stringify(text) "\n"
2013 #include "qemu-options.h"
2014 #undef DEF
2015 #undef DEFHEADING
2016 #undef GEN_DOCS
2017 ;
2018 version();
2019 printf("usage: %s [options] [disk_image]\n"
2020 "\n"
2021 "'disk_image' is a raw hard disk image for IDE hard disk 0\n"
2022 "\n"
2023 "%s\n"
2024 "During emulation, the following keys are useful:\n"
2025 "ctrl-alt-f toggle full screen\n"
2026 "ctrl-alt-n switch to virtual console 'n'\n"
2027 "ctrl-alt toggle mouse and keyboard grab\n"
2028 "\n"
2029 "When using -nographic, press 'ctrl-a h' to get some help.\n",
2030 "qemu",
2031 options_help);
2032 exit(exitcode);
2033 }
2034
2035 #define HAS_ARG 0x0001
2036
2037 enum {
2038 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
2039 opt_enum,
2040 #define DEFHEADING(text)
2041 #include "qemu-options.h"
2042 #undef DEF
2043 #undef DEFHEADING
2044 #undef GEN_DOCS
2045 };
2046
2047 typedef struct QEMUOption {
2048 const char *name;
2049 int flags;
2050 int index;
2051 uint32_t arch_mask;
2052 } QEMUOption;
2053
2054 static const QEMUOption qemu_options[] = {
2055 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
2056 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
2057 { option, opt_arg, opt_enum, arch_mask },
2058 #define DEFHEADING(text)
2059 #include "qemu-options.h"
2060 #undef DEF
2061 #undef DEFHEADING
2062 #undef GEN_DOCS
2063 { NULL },
2064 };
2065 static void select_vgahw (const char *p)
2066 {
2067 const char *opts;
2068
2069 default_vga = 0;
2070 vga_interface_type = VGA_NONE;
2071 if (strstart(p, "std", &opts)) {
2072 vga_interface_type = VGA_STD;
2073 } else if (strstart(p, "cirrus", &opts)) {
2074 vga_interface_type = VGA_CIRRUS;
2075 } else if (strstart(p, "vmware", &opts)) {
2076 vga_interface_type = VGA_VMWARE;
2077 } else if (strstart(p, "xenfb", &opts)) {
2078 vga_interface_type = VGA_XENFB;
2079 } else if (!strstart(p, "none", &opts)) {
2080 invalid_vga:
2081 fprintf(stderr, "Unknown vga type: %s\n", p);
2082 exit(1);
2083 }
2084 while (*opts) {
2085 const char *nextopt;
2086
2087 if (strstart(opts, ",retrace=", &nextopt)) {
2088 opts = nextopt;
2089 if (strstart(opts, "dumb", &nextopt))
2090 vga_retrace_method = VGA_RETRACE_DUMB;
2091 else if (strstart(opts, "precise", &nextopt))
2092 vga_retrace_method = VGA_RETRACE_PRECISE;
2093 else goto invalid_vga;
2094 } else goto invalid_vga;
2095 opts = nextopt;
2096 }
2097 }
2098
2099 static int balloon_parse(const char *arg)
2100 {
2101 QemuOpts *opts;
2102
2103 if (strcmp(arg, "none") == 0) {
2104 return 0;
2105 }
2106
2107 if (!strncmp(arg, "virtio", 6)) {
2108 if (arg[6] == ',') {
2109 /* have params -> parse them */
2110 opts = qemu_opts_parse(&qemu_device_opts, arg+7, 0);
2111 if (!opts)
2112 return -1;
2113 } else {
2114 /* create empty opts */
2115 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2116 }
2117 qemu_opt_set(opts, "driver", "virtio-balloon-pci");
2118 return 0;
2119 }
2120
2121 return -1;
2122 }
2123
2124 #ifdef _WIN32
2125 static BOOL WINAPI qemu_ctrl_handler(DWORD type)
2126 {
2127 exit(STATUS_CONTROL_C_EXIT);
2128 return TRUE;
2129 }
2130 #endif
2131
2132 #ifndef _WIN32
2133
2134 static void termsig_handler(int signal)
2135 {
2136 qemu_system_shutdown_request();
2137 }
2138
2139 static void sigchld_handler(int signal)
2140 {
2141 waitpid(-1, NULL, WNOHANG);
2142 }
2143
2144 static void sighandler_setup(void)
2145 {
2146 struct sigaction act;
2147
2148 memset(&act, 0, sizeof(act));
2149 act.sa_handler = termsig_handler;
2150 sigaction(SIGINT, &act, NULL);
2151 sigaction(SIGHUP, &act, NULL);
2152 sigaction(SIGTERM, &act, NULL);
2153
2154 act.sa_handler = sigchld_handler;
2155 act.sa_flags = SA_NOCLDSTOP;
2156 sigaction(SIGCHLD, &act, NULL);
2157 }
2158
2159 #endif
2160
2161 #ifdef _WIN32
2162 /* Look for support files in the same directory as the executable. */
2163 static char *find_datadir(const char *argv0)
2164 {
2165 char *p;
2166 char buf[MAX_PATH];
2167 DWORD len;
2168
2169 len = GetModuleFileName(NULL, buf, sizeof(buf) - 1);
2170 if (len == 0) {
2171 return NULL;
2172 }
2173
2174 buf[len] = 0;
2175 p = buf + len - 1;
2176 while (p != buf && *p != '\\')
2177 p--;
2178 *p = 0;
2179 if (access(buf, R_OK) == 0) {
2180 return qemu_strdup(buf);
2181 }
2182 return NULL;
2183 }
2184 #else /* !_WIN32 */
2185
2186 /* Find a likely location for support files using the location of the binary.
2187 For installed binaries this will be "$bindir/../share/qemu". When
2188 running from the build tree this will be "$bindir/../pc-bios". */
2189 #define SHARE_SUFFIX "/share/qemu"
2190 #define BUILD_SUFFIX "/pc-bios"
2191 static char *find_datadir(const char *argv0)
2192 {
2193 char *dir;
2194 char *p = NULL;
2195 char *res;
2196 char buf[PATH_MAX];
2197 size_t max_len;
2198
2199 #if defined(__linux__)
2200 {
2201 int len;
2202 len = readlink("/proc/self/exe", buf, sizeof(buf) - 1);
2203 if (len > 0) {
2204 buf[len] = 0;
2205 p = buf;
2206 }
2207 }
2208 #elif defined(__FreeBSD__)
2209 {
2210 static int mib[4] = {CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, -1};
2211 size_t len = sizeof(buf) - 1;
2212
2213 *buf = '\0';
2214 if (!sysctl(mib, sizeof(mib)/sizeof(*mib), buf, &len, NULL, 0) &&
2215 *buf) {
2216 buf[sizeof(buf) - 1] = '\0';
2217 p = buf;
2218 }
2219 }
2220 #endif
2221 /* If we don't have any way of figuring out the actual executable
2222 location then try argv[0]. */
2223 if (!p) {
2224 p = realpath(argv0, buf);
2225 if (!p) {
2226 return NULL;
2227 }
2228 }
2229 dir = dirname(p);
2230 dir = dirname(dir);
2231
2232 max_len = strlen(dir) +
2233 MAX(strlen(SHARE_SUFFIX), strlen(BUILD_SUFFIX)) + 1;
2234 res = qemu_mallocz(max_len);
2235 snprintf(res, max_len, "%s%s", dir, SHARE_SUFFIX);
2236 if (access(res, R_OK)) {
2237 snprintf(res, max_len, "%s%s", dir, BUILD_SUFFIX);
2238 if (access(res, R_OK)) {
2239 qemu_free(res);
2240 res = NULL;
2241 }
2242 }
2243
2244 return res;
2245 }
2246 #undef SHARE_SUFFIX
2247 #undef BUILD_SUFFIX
2248 #endif
2249
2250 char *qemu_find_file(int type, const char *name)
2251 {
2252 int len;
2253 const char *subdir;
2254 char *buf;
2255
2256 /* If name contains path separators then try it as a straight path. */
2257 if ((strchr(name, '/') || strchr(name, '\\'))
2258 && access(name, R_OK) == 0) {
2259 return qemu_strdup(name);
2260 }
2261 switch (type) {
2262 case QEMU_FILE_TYPE_BIOS:
2263 subdir = "";
2264 break;
2265 case QEMU_FILE_TYPE_KEYMAP:
2266 subdir = "keymaps/";
2267 break;
2268 default:
2269 abort();
2270 }
2271 len = strlen(data_dir) + strlen(name) + strlen(subdir) + 2;
2272 buf = qemu_mallocz(len);
2273 snprintf(buf, len, "%s/%s%s", data_dir, subdir, name);
2274 if (access(buf, R_OK)) {
2275 qemu_free(buf);
2276 return NULL;
2277 }
2278 return buf;
2279 }
2280
2281 static int device_help_func(QemuOpts *opts, void *opaque)
2282 {
2283 return qdev_device_help(opts);
2284 }
2285
2286 static int device_init_func(QemuOpts *opts, void *opaque)
2287 {
2288 DeviceState *dev;
2289
2290 dev = qdev_device_add(opts);
2291 if (!dev)
2292 return -1;
2293 return 0;
2294 }
2295
2296 static int chardev_init_func(QemuOpts *opts, void *opaque)
2297 {
2298 CharDriverState *chr;
2299
2300 chr = qemu_chr_open_opts(opts, NULL);
2301 if (!chr)
2302 return -1;
2303 return 0;
2304 }
2305
2306 static int mon_init_func(QemuOpts *opts, void *opaque)
2307 {
2308 CharDriverState *chr;
2309 const char *chardev;
2310 const char *mode;
2311 int flags;
2312
2313 mode = qemu_opt_get(opts, "mode");
2314 if (mode == NULL) {
2315 mode = "readline";
2316 }
2317 if (strcmp(mode, "readline") == 0) {
2318 flags = MONITOR_USE_READLINE;
2319 } else if (strcmp(mode, "control") == 0) {
2320 flags = MONITOR_USE_CONTROL;
2321 } else {
2322 fprintf(stderr, "unknown monitor mode \"%s\"\n", mode);
2323 exit(1);
2324 }
2325
2326 if (qemu_opt_get_bool(opts, "default", 0))
2327 flags |= MONITOR_IS_DEFAULT;
2328
2329 chardev = qemu_opt_get(opts, "chardev");
2330 chr = qemu_chr_find(chardev);
2331 if (chr == NULL) {
2332 fprintf(stderr, "chardev \"%s\" not found\n", chardev);
2333 exit(1);
2334 }
2335
2336 monitor_init(chr, flags);
2337 return 0;
2338 }
2339
2340 static void monitor_parse(const char *optarg, const char *mode)
2341 {
2342 static int monitor_device_index = 0;
2343 QemuOpts *opts;
2344 const char *p;
2345 char label[32];
2346 int def = 0;
2347
2348 if (strstart(optarg, "chardev:", &p)) {
2349 snprintf(label, sizeof(label), "%s", p);
2350 } else {
2351 snprintf(label, sizeof(label), "compat_monitor%d",
2352 monitor_device_index);
2353 if (monitor_device_index == 0) {
2354 def = 1;
2355 }
2356 opts = qemu_chr_parse_compat(label, optarg);
2357 if (!opts) {
2358 fprintf(stderr, "parse error: %s\n", optarg);
2359 exit(1);
2360 }
2361 }
2362
2363 opts = qemu_opts_create(&qemu_mon_opts, label, 1);
2364 if (!opts) {
2365 fprintf(stderr, "duplicate chardev: %s\n", label);
2366 exit(1);
2367 }
2368 qemu_opt_set(opts, "mode", mode);
2369 qemu_opt_set(opts, "chardev", label);
2370 if (def)
2371 qemu_opt_set(opts, "default", "on");
2372 monitor_device_index++;
2373 }
2374
2375 struct device_config {
2376 enum {
2377 DEV_USB, /* -usbdevice */
2378 DEV_BT, /* -bt */
2379 DEV_SERIAL, /* -serial */
2380 DEV_PARALLEL, /* -parallel */
2381 DEV_VIRTCON, /* -virtioconsole */
2382 DEV_DEBUGCON, /* -debugcon */
2383 } type;
2384 const char *cmdline;
2385 QTAILQ_ENTRY(device_config) next;
2386 };
2387 QTAILQ_HEAD(, device_config) device_configs = QTAILQ_HEAD_INITIALIZER(device_configs);
2388
2389 static void add_device_config(int type, const char *cmdline)
2390 {
2391 struct device_config *conf;
2392
2393 conf = qemu_mallocz(sizeof(*conf));
2394 conf->type = type;
2395 conf->cmdline = cmdline;
2396 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2397 }
2398
2399 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2400 {
2401 struct device_config *conf;
2402 int rc;
2403
2404 QTAILQ_FOREACH(conf, &device_configs, next) {
2405 if (conf->type != type)
2406 continue;
2407 rc = func(conf->cmdline);
2408 if (0 != rc)
2409 return rc;
2410 }
2411 return 0;
2412 }
2413
2414 static int serial_parse(const char *devname)
2415 {
2416 static int index = 0;
2417 char label[32];
2418
2419 if (strcmp(devname, "none") == 0)
2420 return 0;
2421 if (index == MAX_SERIAL_PORTS) {
2422 fprintf(stderr, "qemu: too many serial ports\n");
2423 exit(1);
2424 }
2425 snprintf(label, sizeof(label), "serial%d", index);
2426 serial_hds[index] = qemu_chr_open(label, devname, NULL);
2427 if (!serial_hds[index]) {
2428 fprintf(stderr, "qemu: could not open serial device '%s': %s\n",
2429 devname, strerror(errno));
2430 return -1;
2431 }
2432 index++;
2433 return 0;
2434 }
2435
2436 static int parallel_parse(const char *devname)
2437 {
2438 static int index = 0;
2439 char label[32];
2440
2441 if (strcmp(devname, "none") == 0)
2442 return 0;
2443 if (index == MAX_PARALLEL_PORTS) {
2444 fprintf(stderr, "qemu: too many parallel ports\n");
2445 exit(1);
2446 }
2447 snprintf(label, sizeof(label), "parallel%d", index);
2448 parallel_hds[index] = qemu_chr_open(label, devname, NULL);
2449 if (!parallel_hds[index]) {
2450 fprintf(stderr, "qemu: could not open parallel device '%s': %s\n",
2451 devname, strerror(errno));
2452 return -1;
2453 }
2454 index++;
2455 return 0;
2456 }
2457
2458 static int virtcon_parse(const char *devname)
2459 {
2460 static int index = 0;
2461 char label[32];
2462 QemuOpts *bus_opts, *dev_opts;
2463
2464 if (strcmp(devname, "none") == 0)
2465 return 0;
2466 if (index == MAX_VIRTIO_CONSOLES) {
2467 fprintf(stderr, "qemu: too many virtio consoles\n");
2468 exit(1);
2469 }
2470
2471 bus_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2472 qemu_opt_set(bus_opts, "driver", "virtio-serial");
2473
2474 dev_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2475 qemu_opt_set(dev_opts, "driver", "virtconsole");
2476
2477 snprintf(label, sizeof(label), "virtcon%d", index);
2478 virtcon_hds[index] = qemu_chr_open(label, devname, NULL);
2479 if (!virtcon_hds[index]) {
2480 fprintf(stderr, "qemu: could not open virtio console '%s': %s\n",
2481 devname, strerror(errno));
2482 return -1;
2483 }
2484 qemu_opt_set(dev_opts, "chardev", label);
2485
2486 index++;
2487 return 0;
2488 }
2489
2490 static int debugcon_parse(const char *devname)
2491 {
2492 QemuOpts *opts;
2493
2494 if (!qemu_chr_open("debugcon", devname, NULL)) {
2495 exit(1);
2496 }
2497 opts = qemu_opts_create(&qemu_device_opts, "debugcon", 1);
2498 if (!opts) {
2499 fprintf(stderr, "qemu: already have a debugcon device\n");
2500 exit(1);
2501 }
2502 qemu_opt_set(opts, "driver", "isa-debugcon");
2503 qemu_opt_set(opts, "chardev", "debugcon");
2504 return 0;
2505 }
2506
2507 static const QEMUOption *lookup_opt(int argc, char **argv,
2508 const char **poptarg, int *poptind)
2509 {
2510 const QEMUOption *popt;
2511 int optind = *poptind;
2512 char *r = argv[optind];
2513 const char *optarg;
2514
2515 loc_set_cmdline(argv, optind, 1);
2516 optind++;
2517 /* Treat --foo the same as -foo. */
2518 if (r[1] == '-')
2519 r++;
2520 popt = qemu_options;
2521 for(;;) {
2522 if (!popt->name) {
2523 error_report("invalid option");
2524 exit(1);
2525 }
2526 if (!strcmp(popt->name, r + 1))
2527 break;
2528 popt++;
2529 }
2530 if (popt->flags & HAS_ARG) {
2531 if (optind >= argc) {
2532 error_report("requires an argument");
2533 exit(1);
2534 }
2535 optarg = argv[optind++];
2536 loc_set_cmdline(argv, optind - 2, 2);
2537 } else {
2538 optarg = NULL;
2539 }
2540
2541 *poptarg = optarg;
2542 *poptind = optind;
2543
2544 return popt;
2545 }
2546
2547 int main(int argc, char **argv, char **envp)
2548 {
2549 const char *gdbstub_dev = NULL;
2550 int i;
2551 int snapshot, linux_boot;
2552 const char *icount_option = NULL;
2553 const char *initrd_filename;
2554 const char *kernel_filename, *kernel_cmdline;
2555 char boot_devices[33] = "cad"; /* default to HD->floppy->CD-ROM */
2556 DisplayState *ds;
2557 DisplayChangeListener *dcl;
2558 int cyls, heads, secs, translation;
2559 QemuOpts *hda_opts = NULL, *opts;
2560 int optind;
2561 const char *optarg;
2562 const char *loadvm = NULL;
2563 QEMUMachine *machine;
2564 const char *cpu_model;
2565 #ifndef _WIN32
2566 int fds[2];
2567 #endif
2568 int tb_size;
2569 const char *pid_file = NULL;
2570 const char *incoming = NULL;
2571 #ifndef _WIN32
2572 int fd = 0;
2573 struct passwd *pwd = NULL;
2574 const char *chroot_dir = NULL;
2575 const char *run_as = NULL;
2576 #endif
2577 int show_vnc_port = 0;
2578 int defconfig = 1;
2579
2580 error_set_progname(argv[0]);
2581
2582 init_clocks();
2583
2584 qemu_cache_utils_init(envp);
2585
2586 QLIST_INIT (&vm_change_state_head);
2587 #ifndef _WIN32
2588 {
2589 struct sigaction act;
2590 sigfillset(&act.sa_mask);
2591 act.sa_flags = 0;
2592 act.sa_handler = SIG_IGN;
2593 sigaction(SIGPIPE, &act, NULL);
2594 }
2595 #else
2596 SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE);
2597 /* Note: cpu_interrupt() is currently not SMP safe, so we force
2598 QEMU to run on a single CPU */
2599 {
2600 HANDLE h;
2601 DWORD mask, smask;
2602 int i;
2603 h = GetCurrentProcess();
2604 if (GetProcessAffinityMask(h, &mask, &smask)) {
2605 for(i = 0; i < 32; i++) {
2606 if (mask & (1 << i))
2607 break;
2608 }
2609 if (i != 32) {
2610 mask = 1 << i;
2611 SetProcessAffinityMask(h, mask);
2612 }
2613 }
2614 }
2615 #endif
2616
2617 module_call_init(MODULE_INIT_MACHINE);
2618 machine = find_default_machine();
2619 cpu_model = NULL;
2620 initrd_filename = NULL;
2621 ram_size = 0;
2622 snapshot = 0;
2623 kernel_filename = NULL;
2624 kernel_cmdline = "";
2625 cyls = heads = secs = 0;
2626 translation = BIOS_ATA_TRANSLATION_AUTO;
2627
2628 for (i = 0; i < MAX_NODES; i++) {
2629 node_mem[i] = 0;
2630 node_cpumask[i] = 0;
2631 }
2632
2633 nb_numa_nodes = 0;
2634 nb_nics = 0;
2635
2636 tb_size = 0;
2637 autostart= 1;
2638
2639 /* first pass of option parsing */
2640 optind = 1;
2641 while (optind < argc) {
2642 if (argv[optind][0] != '-') {
2643 /* disk image */
2644 optind++;
2645 continue;
2646 } else {
2647 const QEMUOption *popt;
2648
2649 popt = lookup_opt(argc, argv, &optarg, &optind);
2650 switch (popt->index) {
2651 case QEMU_OPTION_nodefconfig:
2652 defconfig=0;
2653 break;
2654 }
2655 }
2656 }
2657
2658 if (defconfig) {
2659 int ret;
2660
2661 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2662 if (ret == -EINVAL) {
2663 exit(1);
2664 }
2665
2666 ret = qemu_read_config_file(arch_config_name);
2667 if (ret == -EINVAL) {
2668 exit(1);
2669 }
2670 }
2671 cpudef_init();
2672
2673 /* second pass of option parsing */
2674 optind = 1;
2675 for(;;) {
2676 if (optind >= argc)
2677 break;
2678 if (argv[optind][0] != '-') {
2679 hda_opts = drive_add(argv[optind++], HD_ALIAS, 0);
2680 } else {
2681 const QEMUOption *popt;
2682
2683 popt = lookup_opt(argc, argv, &optarg, &optind);
2684 if (!(popt->arch_mask & arch_type)) {
2685 printf("Option %s not supported for this target\n", popt->name);
2686 exit(1);
2687 }
2688 switch(popt->index) {
2689 case QEMU_OPTION_M:
2690 machine = find_machine(optarg);
2691 if (!machine) {
2692 QEMUMachine *m;
2693 printf("Supported machines are:\n");
2694 for(m = first_machine; m != NULL; m = m->next) {
2695 if (m->alias)
2696 printf("%-10s %s (alias of %s)\n",
2697 m->alias, m->desc, m->name);
2698 printf("%-10s %s%s\n",
2699 m->name, m->desc,
2700 m->is_default ? " (default)" : "");
2701 }
2702 exit(*optarg != '?');
2703 }
2704 break;
2705 case QEMU_OPTION_cpu:
2706 /* hw initialization will check this */
2707 if (*optarg == '?') {
2708 /* XXX: implement xxx_cpu_list for targets that still miss it */
2709 #if defined(cpu_list_id)
2710 cpu_list_id(stdout, &fprintf, optarg);
2711 #elif defined(cpu_list)
2712 cpu_list(stdout, &fprintf); /* deprecated */
2713 #endif
2714 exit(0);
2715 } else {
2716 cpu_model = optarg;
2717 }
2718 break;
2719 case QEMU_OPTION_initrd:
2720 initrd_filename = optarg;
2721 break;
2722 case QEMU_OPTION_hda:
2723 if (cyls == 0)
2724 hda_opts = drive_add(optarg, HD_ALIAS, 0);
2725 else
2726 hda_opts = drive_add(optarg, HD_ALIAS
2727 ",cyls=%d,heads=%d,secs=%d%s",
2728 0, cyls, heads, secs,
2729 translation == BIOS_ATA_TRANSLATION_LBA ?
2730 ",trans=lba" :
2731 translation == BIOS_ATA_TRANSLATION_NONE ?
2732 ",trans=none" : "");
2733 break;
2734 case QEMU_OPTION_hdb:
2735 case QEMU_OPTION_hdc:
2736 case QEMU_OPTION_hdd:
2737 drive_add(optarg, HD_ALIAS, popt->index - QEMU_OPTION_hda);
2738 break;
2739 case QEMU_OPTION_drive:
2740 drive_add(NULL, "%s", optarg);
2741 break;
2742 case QEMU_OPTION_set:
2743 if (qemu_set_option(optarg) != 0)
2744 exit(1);
2745 break;
2746 case QEMU_OPTION_global:
2747 if (qemu_global_option(optarg) != 0)
2748 exit(1);
2749 break;
2750 case QEMU_OPTION_mtdblock:
2751 drive_add(optarg, MTD_ALIAS);
2752 break;
2753 case QEMU_OPTION_sd:
2754 drive_add(optarg, SD_ALIAS);
2755 break;
2756 case QEMU_OPTION_pflash:
2757 drive_add(optarg, PFLASH_ALIAS);
2758 break;
2759 case QEMU_OPTION_snapshot:
2760 snapshot = 1;
2761 break;
2762 case QEMU_OPTION_hdachs:
2763 {
2764 const char *p;
2765 p = optarg;
2766 cyls = strtol(p, (char **)&p, 0);
2767 if (cyls < 1 || cyls > 16383)
2768 goto chs_fail;
2769 if (*p != ',')
2770 goto chs_fail;
2771 p++;
2772 heads = strtol(p, (char **)&p, 0);
2773 if (heads < 1 || heads > 16)
2774 goto chs_fail;
2775 if (*p != ',')
2776 goto chs_fail;
2777 p++;
2778 secs = strtol(p, (char **)&p, 0);
2779 if (secs < 1 || secs > 63)
2780 goto chs_fail;
2781 if (*p == ',') {
2782 p++;
2783 if (!strcmp(p, "none"))
2784 translation = BIOS_ATA_TRANSLATION_NONE;
2785 else if (!strcmp(p, "lba"))
2786 translation = BIOS_ATA_TRANSLATION_LBA;
2787 else if (!strcmp(p, "auto"))
2788 translation = BIOS_ATA_TRANSLATION_AUTO;
2789 else
2790 goto chs_fail;
2791 } else if (*p != '\0') {
2792 chs_fail:
2793 fprintf(stderr, "qemu: invalid physical CHS format\n");
2794 exit(1);
2795 }
2796 if (hda_opts != NULL) {
2797 char num[16];
2798 snprintf(num, sizeof(num), "%d", cyls);
2799 qemu_opt_set(hda_opts, "cyls", num);
2800 snprintf(num, sizeof(num), "%d", heads);
2801 qemu_opt_set(hda_opts, "heads", num);
2802 snprintf(num, sizeof(num), "%d", secs);
2803 qemu_opt_set(hda_opts, "secs", num);
2804 if (translation == BIOS_ATA_TRANSLATION_LBA)
2805 qemu_opt_set(hda_opts, "trans", "lba");
2806 if (translation == BIOS_ATA_TRANSLATION_NONE)
2807 qemu_opt_set(hda_opts, "trans", "none");
2808 }
2809 }
2810 break;
2811 case QEMU_OPTION_numa:
2812 if (nb_numa_nodes >= MAX_NODES) {
2813 fprintf(stderr, "qemu: too many NUMA nodes\n");
2814 exit(1);
2815 }
2816 numa_add(optarg);
2817 break;
2818 case QEMU_OPTION_nographic:
2819 display_type = DT_NOGRAPHIC;
2820 break;
2821 #ifdef CONFIG_CURSES
2822 case QEMU_OPTION_curses:
2823 display_type = DT_CURSES;
2824 break;
2825 #endif
2826 case QEMU_OPTION_portrait:
2827 graphic_rotate = 1;
2828 break;
2829 case QEMU_OPTION_kernel:
2830 kernel_filename = optarg;
2831 break;
2832 case QEMU_OPTION_append:
2833 kernel_cmdline = optarg;
2834 break;
2835 case QEMU_OPTION_cdrom:
2836 drive_add(optarg, CDROM_ALIAS);
2837 break;
2838 case QEMU_OPTION_boot:
2839 {
2840 static const char * const params[] = {
2841 "order", "once", "menu", NULL
2842 };
2843 char buf[sizeof(boot_devices)];
2844 char *standard_boot_devices;
2845 int legacy = 0;
2846
2847 if (!strchr(optarg, '=')) {
2848 legacy = 1;
2849 pstrcpy(buf, sizeof(buf), optarg);
2850 } else if (check_params(buf, sizeof(buf), params, optarg) < 0) {
2851 fprintf(stderr,
2852 "qemu: unknown boot parameter '%s' in '%s'\n",
2853 buf, optarg);
2854 exit(1);
2855 }
2856
2857 if (legacy ||
2858 get_param_value(buf, sizeof(buf), "order", optarg)) {
2859 validate_bootdevices(buf);
2860 pstrcpy(boot_devices, sizeof(boot_devices), buf);
2861 }
2862 if (!legacy) {
2863 if (get_param_value(buf, sizeof(buf),
2864 "once", optarg)) {
2865 validate_bootdevices(buf);
2866 standard_boot_devices = qemu_strdup(boot_devices);
2867 pstrcpy(boot_devices, sizeof(boot_devices), buf);
2868 qemu_register_reset(restore_boot_devices,
2869 standard_boot_devices);
2870 }
2871 if (get_param_value(buf, sizeof(buf),
2872 "menu", optarg)) {
2873 if (!strcmp(buf, "on")) {
2874 boot_menu = 1;
2875 } else if (!strcmp(buf, "off")) {
2876 boot_menu = 0;
2877 } else {
2878 fprintf(stderr,
2879 "qemu: invalid option value '%s'\n",
2880 buf);
2881 exit(1);
2882 }
2883 }
2884 }
2885 }
2886 break;
2887 case QEMU_OPTION_fda:
2888 case QEMU_OPTION_fdb:
2889 drive_add(optarg, FD_ALIAS, popt->index - QEMU_OPTION_fda);
2890 break;
2891 case QEMU_OPTION_no_fd_bootchk:
2892 fd_bootchk = 0;
2893 break;
2894 case QEMU_OPTION_netdev:
2895 if (net_client_parse(&qemu_netdev_opts, optarg) == -1) {
2896 exit(1);
2897 }
2898 break;
2899 case QEMU_OPTION_net:
2900 if (net_client_parse(&qemu_net_opts, optarg) == -1) {
2901 exit(1);
2902 }
2903 break;
2904 #ifdef CONFIG_SLIRP
2905 case QEMU_OPTION_tftp:
2906 legacy_tftp_prefix = optarg;
2907 break;
2908 case QEMU_OPTION_bootp:
2909 legacy_bootp_filename = optarg;
2910 break;
2911 #ifndef _WIN32
2912 case QEMU_OPTION_smb:
2913 if (net_slirp_smb(optarg) < 0)
2914 exit(1);
2915 break;
2916 #endif
2917 case QEMU_OPTION_redir:
2918 if (net_slirp_redir(optarg) < 0)
2919 exit(1);
2920 break;
2921 #endif
2922 case QEMU_OPTION_bt:
2923 add_device_config(DEV_BT, optarg);
2924 break;
2925 case QEMU_OPTION_audio_help:
2926 if (!(audio_available())) {
2927 printf("Option %s not supported for this target\n", popt->name);
2928 exit(1);
2929 }
2930 AUD_help ();
2931 exit (0);
2932 break;
2933 case QEMU_OPTION_soundhw:
2934 if (!(audio_available())) {
2935 printf("Option %s not supported for this target\n", popt->name);
2936 exit(1);
2937 }
2938 select_soundhw (optarg);
2939 break;
2940 case QEMU_OPTION_h:
2941 help(0);
2942 break;
2943 case QEMU_OPTION_version:
2944 version();
2945 exit(0);
2946 break;
2947 case QEMU_OPTION_m: {
2948 uint64_t value;
2949 char *ptr;
2950
2951 value = strtoul(optarg, &ptr, 10);
2952 switch (*ptr) {
2953 case 0: case 'M': case 'm':
2954 value <<= 20;
2955 break;
2956 case 'G': case 'g':
2957 value <<= 30;
2958 break;
2959 default:
2960 fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
2961 exit(1);
2962 }
2963
2964 /* On 32-bit hosts, QEMU is limited by virtual address space */
2965 if (value > (2047 << 20) && HOST_LONG_BITS == 32) {
2966 fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
2967 exit(1);
2968 }
2969 if (value != (uint64_t)(ram_addr_t)value) {
2970 fprintf(stderr, "qemu: ram size too large\n");
2971 exit(1);
2972 }
2973 ram_size = value;
2974 break;
2975 }
2976 case QEMU_OPTION_mempath:
2977 mem_path = optarg;
2978 break;
2979 #ifdef MAP_POPULATE
2980 case QEMU_OPTION_mem_prealloc:
2981 mem_prealloc = 1;
2982 break;
2983 #endif
2984 case QEMU_OPTION_d:
2985 set_cpu_log(optarg);
2986 break;
2987 case QEMU_OPTION_s:
2988 gdbstub_dev = "tcp::" DEFAULT_GDBSTUB_PORT;
2989 break;
2990 case QEMU_OPTION_gdb:
2991 gdbstub_dev = optarg;
2992 break;
2993 case QEMU_OPTION_L:
2994 data_dir = optarg;
2995 break;
2996 case QEMU_OPTION_bios:
2997 bios_name = optarg;
2998 break;
2999 case QEMU_OPTION_singlestep:
3000 singlestep = 1;
3001 break;
3002 case QEMU_OPTION_S:
3003 autostart = 0;
3004 break;
3005 case QEMU_OPTION_k:
3006 keyboard_layout = optarg;
3007 break;
3008 case QEMU_OPTION_localtime:
3009 rtc_utc = 0;
3010 break;
3011 case QEMU_OPTION_vga:
3012 select_vgahw (optarg);
3013 break;
3014 case QEMU_OPTION_g:
3015 {
3016 const char *p;
3017 int w, h, depth;
3018 p = optarg;
3019 w = strtol(p, (char **)&p, 10);
3020 if (w <= 0) {
3021 graphic_error:
3022 fprintf(stderr, "qemu: invalid resolution or depth\n");
3023 exit(1);
3024 }
3025 if (*p != 'x')
3026 goto graphic_error;
3027 p++;
3028 h = strtol(p, (char **)&p, 10);
3029 if (h <= 0)
3030 goto graphic_error;
3031 if (*p == 'x') {
3032 p++;
3033 depth = strtol(p, (char **)&p, 10);
3034 if (depth != 8 && depth != 15 && depth != 16 &&
3035 depth != 24 && depth != 32)
3036 goto graphic_error;
3037 } else if (*p == '\0') {
3038 depth = graphic_depth;
3039 } else {
3040 goto graphic_error;
3041 }
3042
3043 graphic_width = w;
3044 graphic_height = h;
3045 graphic_depth = depth;
3046 }
3047 break;
3048 case QEMU_OPTION_echr:
3049 {
3050 char *r;
3051 term_escape_char = strtol(optarg, &r, 0);
3052 if (r == optarg)
3053 printf("Bad argument to echr\n");
3054 break;
3055 }
3056 case QEMU_OPTION_monitor:
3057 monitor_parse(optarg, "readline");
3058 default_monitor = 0;
3059 break;
3060 case QEMU_OPTION_qmp:
3061 monitor_parse(optarg, "control");
3062 default_monitor = 0;
3063 break;
3064 case QEMU_OPTION_mon:
3065 opts = qemu_opts_parse(&qemu_mon_opts, optarg, 1);
3066 if (!opts) {
3067 exit(1);
3068 }
3069 default_monitor = 0;
3070 break;
3071 case QEMU_OPTION_chardev:
3072 opts = qemu_opts_parse(&qemu_chardev_opts, optarg, 1);
3073 if (!opts) {
3074 exit(1);
3075 }
3076 break;
3077 case QEMU_OPTION_serial:
3078 add_device_config(DEV_SERIAL, optarg);
3079 default_serial = 0;
3080 if (strncmp(optarg, "mon:", 4) == 0) {
3081 default_monitor = 0;
3082 }
3083 break;
3084 case QEMU_OPTION_watchdog:
3085 if (watchdog) {
3086 fprintf(stderr,
3087 "qemu: only one watchdog option may be given\n");
3088 return 1;
3089 }
3090 watchdog = optarg;
3091 break;
3092 case QEMU_OPTION_watchdog_action:
3093 if (select_watchdog_action(optarg) == -1) {
3094 fprintf(stderr, "Unknown -watchdog-action parameter\n");
3095 exit(1);
3096 }
3097 break;
3098 case QEMU_OPTION_virtiocon:
3099 add_device_config(DEV_VIRTCON, optarg);
3100 default_virtcon = 0;
3101 if (strncmp(optarg, "mon:", 4) == 0) {
3102 default_monitor = 0;
3103 }
3104 break;
3105 case QEMU_OPTION_parallel:
3106 add_device_config(DEV_PARALLEL, optarg);
3107 default_parallel = 0;
3108 if (strncmp(optarg, "mon:", 4) == 0) {
3109 default_monitor = 0;
3110 }
3111 break;
3112 case QEMU_OPTION_debugcon:
3113 add_device_config(DEV_DEBUGCON, optarg);
3114 break;
3115 case QEMU_OPTION_loadvm:
3116 loadvm = optarg;
3117 break;
3118 case QEMU_OPTION_full_screen:
3119 full_screen = 1;
3120 break;
3121 #ifdef CONFIG_SDL
3122 case QEMU_OPTION_no_frame:
3123 no_frame = 1;
3124 break;
3125 case QEMU_OPTION_alt_grab:
3126 alt_grab = 1;
3127 break;
3128 case QEMU_OPTION_ctrl_grab:
3129 ctrl_grab = 1;
3130 break;
3131 case QEMU_OPTION_no_quit:
3132 no_quit = 1;
3133 break;
3134 case QEMU_OPTION_sdl:
3135 display_type = DT_SDL;
3136 break;
3137 #endif
3138 case QEMU_OPTION_pidfile:
3139 pid_file = optarg;
3140 break;
3141 case QEMU_OPTION_win2k_hack:
3142 win2k_install_hack = 1;
3143 break;
3144 case QEMU_OPTION_rtc_td_hack:
3145 rtc_td_hack = 1;
3146 break;
3147 case QEMU_OPTION_acpitable:
3148 do_acpitable_option(optarg);
3149 break;
3150 case QEMU_OPTION_smbios:
3151 do_smbios_option(optarg);
3152 break;
3153 case QEMU_OPTION_enable_kvm:
3154 kvm_allowed = 1;
3155 break;
3156 case QEMU_OPTION_usb:
3157 usb_enabled = 1;
3158 break;
3159 case QEMU_OPTION_usbdevice:
3160 usb_enabled = 1;
3161 add_device_config(DEV_USB, optarg);
3162 break;
3163 case QEMU_OPTION_device:
3164 if (!qemu_opts_parse(&qemu_device_opts, optarg, 1)) {
3165 exit(1);
3166 }
3167 break;
3168 case QEMU_OPTION_smp:
3169 smp_parse(optarg);
3170 if (smp_cpus < 1) {
3171 fprintf(stderr, "Invalid number of CPUs\n");
3172 exit(1);
3173 }
3174 if (max_cpus < smp_cpus) {
3175 fprintf(stderr, "maxcpus must be equal to or greater than "
3176 "smp\n");
3177 exit(1);
3178 }
3179 if (max_cpus > 255) {
3180 fprintf(stderr, "Unsupported number of maxcpus\n");
3181 exit(1);
3182 }
3183 break;
3184 case QEMU_OPTION_vnc:
3185 display_type = DT_VNC;
3186 vnc_display = optarg;
3187 break;
3188 case QEMU_OPTION_no_acpi:
3189 acpi_enabled = 0;
3190 break;
3191 case QEMU_OPTION_no_hpet:
3192 no_hpet = 1;
3193 break;
3194 case QEMU_OPTION_balloon:
3195 if (balloon_parse(optarg) < 0) {
3196 fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
3197 exit(1);
3198 }
3199 break;
3200 case QEMU_OPTION_no_reboot:
3201 no_reboot = 1;
3202 break;
3203 case QEMU_OPTION_no_shutdown:
3204 no_shutdown = 1;
3205 break;
3206 case QEMU_OPTION_show_cursor:
3207 cursor_hide = 0;
3208 break;
3209 case QEMU_OPTION_uuid:
3210 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
3211 fprintf(stderr, "Fail to parse UUID string."
3212 " Wrong format.\n");
3213 exit(1);
3214 }
3215 break;
3216 #ifndef _WIN32
3217 case QEMU_OPTION_daemonize:
3218 daemonize = 1;
3219 break;
3220 #endif
3221 case QEMU_OPTION_option_rom:
3222 if (nb_option_roms >= MAX_OPTION_ROMS) {
3223 fprintf(stderr, "Too many option ROMs\n");
3224 exit(1);
3225 }
3226 option_rom[nb_option_roms] = optarg;
3227 nb_option_roms++;
3228 break;
3229 case QEMU_OPTION_semihosting:
3230 semihosting_enabled = 1;
3231 break;
3232 case QEMU_OPTION_name:
3233 qemu_name = qemu_strdup(optarg);
3234 {
3235 char *p = strchr(qemu_name, ',');
3236 if (p != NULL) {
3237 *p++ = 0;
3238 if (strncmp(p, "process=", 8)) {
3239 fprintf(stderr, "Unknown subargument %s to -name", p);
3240 exit(1);
3241 }
3242 p += 8;
3243 set_proc_name(p);
3244 }
3245 }
3246 break;
3247 case QEMU_OPTION_prom_env:
3248 if (nb_prom_envs >= MAX_PROM_ENVS) {
3249 fprintf(stderr, "Too many prom variables\n");
3250 exit(1);
3251 }
3252 prom_envs[nb_prom_envs] = optarg;
3253 nb_prom_envs++;
3254 break;
3255 case QEMU_OPTION_old_param:
3256 old_param = 1;
3257 break;
3258 case QEMU_OPTION_clock:
3259 configure_alarms(optarg);
3260 break;
3261 case QEMU_OPTION_startdate:
3262 configure_rtc_date_offset(optarg, 1);
3263 break;
3264 case QEMU_OPTION_rtc:
3265 opts = qemu_opts_parse(&qemu_rtc_opts, optarg, 0);
3266 if (!opts) {
3267 exit(1);
3268 }
3269 configure_rtc(opts);
3270 break;
3271 case QEMU_OPTION_tb_size:
3272 tb_size = strtol(optarg, NULL, 0);
3273 if (tb_size < 0)
3274 tb_size = 0;
3275 break;
3276 case QEMU_OPTION_icount:
3277 icount_option = optarg;
3278 break;
3279 case QEMU_OPTION_incoming:
3280 incoming = optarg;
3281 break;
3282 case QEMU_OPTION_nodefaults:
3283 default_serial = 0;
3284 default_parallel = 0;
3285 default_virtcon = 0;
3286 default_monitor = 0;
3287 default_vga = 0;
3288 default_net = 0;
3289 default_floppy = 0;
3290 default_cdrom = 0;
3291 default_sdcard = 0;
3292 break;
3293 #ifndef _WIN32
3294 case QEMU_OPTION_chroot:
3295 chroot_dir = optarg;
3296 break;
3297 case QEMU_OPTION_runas:
3298 run_as = optarg;
3299 break;
3300 #endif
3301 case QEMU_OPTION_xen_domid:
3302 if (!(xen_available())) {
3303 printf("Option %s not supported for this target\n", popt->name);
3304 exit(1);
3305 }
3306 xen_domid = atoi(optarg);
3307 break;
3308 case QEMU_OPTION_xen_create:
3309 if (!(xen_available())) {
3310 printf("Option %s not supported for this target\n", popt->name);
3311 exit(1);
3312 }
3313 xen_mode = XEN_CREATE;
3314 break;
3315 case QEMU_OPTION_xen_attach:
3316 if (!(xen_available())) {
3317 printf("Option %s not supported for this target\n", popt->name);
3318 exit(1);
3319 }
3320 xen_mode = XEN_ATTACH;
3321 break;
3322 case QEMU_OPTION_readconfig:
3323 {
3324 int ret = qemu_read_config_file(optarg);
3325 if (ret < 0) {
3326 fprintf(stderr, "read config %s: %s\n", optarg,
3327 strerror(-ret));
3328 exit(1);
3329 }
3330 break;
3331 }
3332 case QEMU_OPTION_writeconfig:
3333 {
3334 FILE *fp;
3335 if (strcmp(optarg, "-") == 0) {
3336 fp = stdout;
3337 } else {
3338 fp = fopen(optarg, "w");
3339 if (fp == NULL) {
3340 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
3341 exit(1);
3342 }
3343 }
3344 qemu_config_write(fp);
3345 fclose(fp);
3346 break;
3347 }
3348 }
3349 }
3350 }
3351 loc_set_none();
3352
3353 /* If no data_dir is specified then try to find it relative to the
3354 executable path. */
3355 if (!data_dir) {
3356 data_dir = find_datadir(argv[0]);
3357 }
3358 /* If all else fails use the install patch specified when building. */
3359 if (!data_dir) {
3360 data_dir = CONFIG_QEMU_SHAREDIR;
3361 }
3362
3363 /*
3364 * Default to max_cpus = smp_cpus, in case the user doesn't
3365 * specify a max_cpus value.
3366 */
3367 if (!max_cpus)
3368 max_cpus = smp_cpus;
3369
3370 machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
3371 if (smp_cpus > machine->max_cpus) {
3372 fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
3373 "supported by machine `%s' (%d)\n", smp_cpus, machine->name,
3374 machine->max_cpus);
3375 exit(1);
3376 }
3377
3378 qemu_opts_foreach(&qemu_device_opts, default_driver_check, NULL, 0);
3379 qemu_opts_foreach(&qemu_global_opts, default_driver_check, NULL, 0);
3380
3381 if (machine->no_serial) {
3382 default_serial = 0;
3383 }
3384 if (machine->no_parallel) {
3385 default_parallel = 0;
3386 }
3387 if (!machine->use_virtcon) {
3388 default_virtcon = 0;
3389 }
3390 if (machine->no_vga) {
3391 default_vga = 0;
3392 }
3393 if (machine->no_floppy) {
3394 default_floppy = 0;
3395 }
3396 if (machine->no_cdrom) {
3397 default_cdrom = 0;
3398 }
3399 if (machine->no_sdcard) {
3400 default_sdcard = 0;
3401 }
3402
3403 if (display_type == DT_NOGRAPHIC) {
3404 if (default_parallel)
3405 add_device_config(DEV_PARALLEL, "null");
3406 if (default_serial && default_monitor) {
3407 add_device_config(DEV_SERIAL, "mon:stdio");
3408 } else if (default_virtcon && default_monitor) {
3409 add_device_config(DEV_VIRTCON, "mon:stdio");
3410 } else {
3411 if (default_serial)
3412 add_device_config(DEV_SERIAL, "stdio");
3413 if (default_virtcon)
3414 add_device_config(DEV_VIRTCON, "stdio");
3415 if (default_monitor)
3416 monitor_parse("stdio", "readline");
3417 }
3418 } else {
3419 if (default_serial)
3420 add_device_config(DEV_SERIAL, "vc:80Cx24C");
3421 if (default_parallel)
3422 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
3423 if (default_monitor)
3424 monitor_parse("vc:80Cx24C", "readline");
3425 if (default_virtcon)
3426 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
3427 }
3428 if (default_vga)
3429 vga_interface_type = VGA_CIRRUS;
3430
3431 if (qemu_opts_foreach(&qemu_chardev_opts, chardev_init_func, NULL, 1) != 0)
3432 exit(1);
3433
3434 #ifndef _WIN32
3435 if (daemonize) {
3436 pid_t pid;
3437
3438 if (pipe(fds) == -1)
3439 exit(1);
3440
3441 pid = fork();
3442 if (pid > 0) {
3443 uint8_t status;
3444 ssize_t len;
3445
3446 close(fds[1]);
3447
3448 again:
3449 len = read(fds[0], &status, 1);
3450 if (len == -1 && (errno == EINTR))
3451 goto again;
3452
3453 if (len != 1)
3454 exit(1);
3455 else if (status == 1) {
3456 fprintf(stderr, "Could not acquire pidfile: %s\n", strerror(errno));
3457 exit(1);
3458 } else
3459 exit(0);
3460 } else if (pid < 0)
3461 exit(1);
3462
3463 close(fds[0]);
3464 qemu_set_cloexec(fds[1]);
3465
3466 setsid();
3467
3468 pid = fork();
3469 if (pid > 0)
3470 exit(0);
3471 else if (pid < 0)
3472 exit(1);
3473
3474 umask(027);
3475
3476 signal(SIGTSTP, SIG_IGN);
3477 signal(SIGTTOU, SIG_IGN);
3478 signal(SIGTTIN, SIG_IGN);
3479 }
3480 #endif
3481
3482 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
3483 #ifndef _WIN32
3484 if (daemonize) {
3485 uint8_t status = 1;
3486 if (write(fds[1], &status, 1) != 1) {
3487 perror("daemonize. Writing to pipe\n");
3488 }
3489 } else
3490 #endif
3491 fprintf(stderr, "Could not acquire pid file: %s\n", strerror(errno));
3492 exit(1);
3493 }
3494
3495 if (kvm_allowed) {
3496 int ret = kvm_init(smp_cpus);
3497 if (ret < 0) {
3498 if (!kvm_available()) {
3499 printf("KVM not supported for this target\n");
3500 } else {
3501 fprintf(stderr, "failed to initialize KVM: %s\n", strerror(-ret));
3502 }
3503 exit(1);
3504 }
3505 }
3506
3507 if (qemu_init_main_loop()) {
3508 fprintf(stderr, "qemu_init_main_loop failed\n");
3509 exit(1);
3510 }
3511 linux_boot = (kernel_filename != NULL);
3512
3513 if (!linux_boot && *kernel_cmdline != '\0') {
3514 fprintf(stderr, "-append only allowed with -kernel option\n");
3515 exit(1);
3516 }
3517
3518 if (!linux_boot && initrd_filename != NULL) {
3519 fprintf(stderr, "-initrd only allowed with -kernel option\n");
3520 exit(1);
3521 }
3522
3523 #ifndef _WIN32
3524 /* Win32 doesn't support line-buffering and requires size >= 2 */
3525 setvbuf(stdout, NULL, _IOLBF, 0);
3526 #endif
3527
3528 if (init_timer_alarm() < 0) {
3529 fprintf(stderr, "could not initialize alarm timer\n");
3530 exit(1);
3531 }
3532 configure_icount(icount_option);
3533
3534 socket_init();
3535
3536 if (net_init_clients() < 0) {
3537 exit(1);
3538 }
3539
3540 /* init the bluetooth world */
3541 if (foreach_device_config(DEV_BT, bt_parse))
3542 exit(1);
3543
3544 /* init the memory */
3545 if (ram_size == 0)
3546 ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
3547
3548 /* init the dynamic translator */
3549 cpu_exec_init_all(tb_size * 1024 * 1024);
3550
3551 bdrv_init_with_whitelist();
3552
3553 blk_mig_init();
3554
3555 if (default_cdrom) {
3556 /* we always create the cdrom drive, even if no disk is there */
3557 drive_add(NULL, CDROM_ALIAS);
3558 }
3559
3560 if (default_floppy) {
3561 /* we always create at least one floppy */
3562 drive_add(NULL, FD_ALIAS, 0);
3563 }
3564
3565 if (default_sdcard) {
3566 /* we always create one sd slot, even if no card is in it */
3567 drive_add(NULL, SD_ALIAS);
3568 }
3569
3570 /* open the virtual block devices */
3571 if (snapshot)
3572 qemu_opts_foreach(&qemu_drive_opts, drive_enable_snapshot, NULL, 0);
3573 if (qemu_opts_foreach(&qemu_drive_opts, drive_init_func, machine, 1) != 0)
3574 exit(1);
3575
3576 register_savevm_live("ram", 0, 3, NULL, ram_save_live, NULL,
3577 ram_load, NULL);
3578
3579 if (nb_numa_nodes > 0) {
3580 int i;
3581
3582 if (nb_numa_nodes > smp_cpus) {
3583 nb_numa_nodes = smp_cpus;
3584 }
3585
3586 /* If no memory size if given for any node, assume the default case
3587 * and distribute the available memory equally across all nodes
3588 */
3589 for (i = 0; i < nb_numa_nodes; i++) {
3590 if (node_mem[i] != 0)
3591 break;
3592 }
3593 if (i == nb_numa_nodes) {
3594 uint64_t usedmem = 0;
3595
3596 /* On Linux, the each node's border has to be 8MB aligned,
3597 * the final node gets the rest.
3598 */
3599 for (i = 0; i < nb_numa_nodes - 1; i++) {
3600 node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1);
3601 usedmem += node_mem[i];
3602 }
3603 node_mem[i] = ram_size - usedmem;
3604 }
3605
3606 for (i = 0; i < nb_numa_nodes; i++) {
3607 if (node_cpumask[i] != 0)
3608 break;
3609 }
3610 /* assigning the VCPUs round-robin is easier to implement, guest OSes
3611 * must cope with this anyway, because there are BIOSes out there in
3612 * real machines which also use this scheme.
3613 */
3614 if (i == nb_numa_nodes) {
3615 for (i = 0; i < smp_cpus; i++) {
3616 node_cpumask[i % nb_numa_nodes] |= 1 << i;
3617 }
3618 }
3619 }
3620
3621 if (qemu_opts_foreach(&qemu_mon_opts, mon_init_func, NULL, 1) != 0) {
3622 exit(1);
3623 }
3624
3625 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
3626 exit(1);
3627 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
3628 exit(1);
3629 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
3630 exit(1);
3631 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
3632 exit(1);
3633
3634 module_call_init(MODULE_INIT_DEVICE);
3635
3636 if (qemu_opts_foreach(&qemu_device_opts, device_help_func, NULL, 0) != 0)
3637 exit(0);
3638
3639 if (watchdog) {
3640 i = select_watchdog(watchdog);
3641 if (i > 0)
3642 exit (i == 1 ? 1 : 0);
3643 }
3644
3645 if (machine->compat_props) {
3646 qdev_prop_register_global_list(machine->compat_props);
3647 }
3648 qemu_add_globals();
3649
3650 machine->init(ram_size, boot_devices,
3651 kernel_filename, kernel_cmdline, initrd_filename, cpu_model);
3652
3653 cpu_synchronize_all_post_init();
3654
3655 #ifndef _WIN32
3656 /* must be after terminal init, SDL library changes signal handlers */
3657 sighandler_setup();
3658 #endif
3659
3660 set_numa_modes();
3661
3662 current_machine = machine;
3663
3664 /* init USB devices */
3665 if (usb_enabled) {
3666 if (foreach_device_config(DEV_USB, usb_parse) < 0)
3667 exit(1);
3668 }
3669
3670 /* init generic devices */
3671 if (qemu_opts_foreach(&qemu_device_opts, device_init_func, NULL, 1) != 0)
3672 exit(1);
3673
3674 net_check_clients();
3675
3676 /* just use the first displaystate for the moment */
3677 ds = get_displaystate();
3678
3679 if (display_type == DT_DEFAULT) {
3680 #if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
3681 display_type = DT_SDL;
3682 #else
3683 display_type = DT_VNC;
3684 vnc_display = "localhost:0,to=99";
3685 show_vnc_port = 1;
3686 #endif
3687 }
3688
3689
3690 switch (display_type) {
3691 case DT_NOGRAPHIC:
3692 break;
3693 #if defined(CONFIG_CURSES)
3694 case DT_CURSES:
3695 curses_display_init(ds, full_screen);
3696 break;
3697 #endif
3698 #if defined(CONFIG_SDL)
3699 case DT_SDL:
3700 sdl_display_init(ds, full_screen, no_frame);
3701 break;
3702 #elif defined(CONFIG_COCOA)
3703 case DT_SDL:
3704 cocoa_display_init(ds, full_screen);
3705 break;
3706 #endif
3707 case DT_VNC:
3708 vnc_display_init(ds);
3709 if (vnc_display_open(ds, vnc_display) < 0)
3710 exit(1);
3711
3712 if (show_vnc_port) {
3713 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
3714 }
3715 break;
3716 default:
3717 break;
3718 }
3719 dpy_resize(ds);
3720
3721 dcl = ds->listeners;
3722 while (dcl != NULL) {
3723 if (dcl->dpy_refresh != NULL) {
3724 ds->gui_timer = qemu_new_timer(rt_clock, gui_update, ds);
3725 qemu_mod_timer(ds->gui_timer, qemu_get_clock(rt_clock));
3726 }
3727 dcl = dcl->next;
3728 }
3729
3730 if (display_type == DT_NOGRAPHIC || display_type == DT_VNC) {
3731 nographic_timer = qemu_new_timer(rt_clock, nographic_update, NULL);
3732 qemu_mod_timer(nographic_timer, qemu_get_clock(rt_clock));
3733 }
3734
3735 text_consoles_set_display(ds);
3736
3737 if (gdbstub_dev && gdbserver_start(gdbstub_dev) < 0) {
3738 fprintf(stderr, "qemu: could not open gdbserver on device '%s'\n",
3739 gdbstub_dev);
3740 exit(1);
3741 }
3742
3743 qdev_machine_creation_done();
3744
3745 if (rom_load_all() != 0) {
3746 fprintf(stderr, "rom loading failed\n");
3747 exit(1);
3748 }
3749
3750 qemu_system_reset();
3751 if (loadvm) {
3752 if (load_vmstate(loadvm) < 0) {
3753 autostart = 0;
3754 }
3755 }
3756
3757 if (incoming) {
3758 qemu_start_incoming_migration(incoming);
3759 } else if (autostart) {
3760 vm_start();
3761 }
3762
3763 #ifndef _WIN32
3764 if (daemonize) {
3765 uint8_t status = 0;
3766 ssize_t len;
3767
3768 again1:
3769 len = write(fds[1], &status, 1);
3770 if (len == -1 && (errno == EINTR))
3771 goto again1;
3772
3773 if (len != 1)
3774 exit(1);
3775
3776 if (chdir("/")) {
3777 perror("not able to chdir to /");
3778 exit(1);
3779 }
3780 TFR(fd = qemu_open("/dev/null", O_RDWR));
3781 if (fd == -1)
3782 exit(1);
3783 }
3784
3785 if (run_as) {
3786 pwd = getpwnam(run_as);
3787 if (!pwd) {
3788 fprintf(stderr, "User \"%s\" doesn't exist\n", run_as);
3789 exit(1);
3790 }
3791 }
3792
3793 if (chroot_dir) {
3794 if (chroot(chroot_dir) < 0) {
3795 fprintf(stderr, "chroot failed\n");
3796 exit(1);
3797 }
3798 if (chdir("/")) {
3799 perror("not able to chdir to /");
3800 exit(1);
3801 }
3802 }
3803
3804 if (run_as) {
3805 if (setgid(pwd->pw_gid) < 0) {
3806 fprintf(stderr, "Failed to setgid(%d)\n", pwd->pw_gid);
3807 exit(1);
3808 }
3809 if (setuid(pwd->pw_uid) < 0) {
3810 fprintf(stderr, "Failed to setuid(%d)\n", pwd->pw_uid);
3811 exit(1);
3812 }
3813 if (setuid(0) != -1) {
3814 fprintf(stderr, "Dropping privileges failed\n");
3815 exit(1);
3816 }
3817 }
3818
3819 if (daemonize) {
3820 dup2(fd, 0);
3821 dup2(fd, 1);
3822 dup2(fd, 2);
3823
3824 close(fd);
3825 }
3826 #endif
3827
3828 main_loop();
3829 quit_timers();
3830 net_cleanup();
3831
3832 return 0;
3833 }
Anthony Liguori's QEMU queue