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tcg/arm: use ext* ops in qemu_ld
[qemu/aliguori-queue.git] / vl.c
blob2f6c167253e5da54a8ace03273a5779bcea98d01
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 cache;
787 int aio = 0;
788 int ro = 0;
789 int bdrv_flags;
790 int on_read_error, on_write_error;
791 const char *devaddr;
792 DriveInfo *dinfo;
793 int snapshot = 0;
794
795 *fatal_error = 1;
796
797 translation = BIOS_ATA_TRANSLATION_AUTO;
798 cache = 1;
799
800 if (machine && machine->use_scsi) {
801 type = IF_SCSI;
802 max_devs = MAX_SCSI_DEVS;
803 pstrcpy(devname, sizeof(devname), "scsi");
804 } else {
805 type = IF_IDE;
806 max_devs = MAX_IDE_DEVS;
807 pstrcpy(devname, sizeof(devname), "ide");
808 }
809 media = MEDIA_DISK;
810
811 /* extract parameters */
812 bus_id = qemu_opt_get_number(opts, "bus", 0);
813 unit_id = qemu_opt_get_number(opts, "unit", -1);
814 index = qemu_opt_get_number(opts, "index", -1);
815
816 cyls = qemu_opt_get_number(opts, "cyls", 0);
817 heads = qemu_opt_get_number(opts, "heads", 0);
818 secs = qemu_opt_get_number(opts, "secs", 0);
819
820 snapshot = qemu_opt_get_bool(opts, "snapshot", 0);
821 ro = qemu_opt_get_bool(opts, "readonly", 0);
822
823 file = qemu_opt_get(opts, "file");
824 serial = qemu_opt_get(opts, "serial");
825
826 if ((buf = qemu_opt_get(opts, "if")) != NULL) {
827 pstrcpy(devname, sizeof(devname), buf);
828 if (!strcmp(buf, "ide")) {
829 type = IF_IDE;
830 max_devs = MAX_IDE_DEVS;
831 } else if (!strcmp(buf, "scsi")) {
832 type = IF_SCSI;
833 max_devs = MAX_SCSI_DEVS;
834 } else if (!strcmp(buf, "floppy")) {
835 type = IF_FLOPPY;
836 max_devs = 0;
837 } else if (!strcmp(buf, "pflash")) {
838 type = IF_PFLASH;
839 max_devs = 0;
840 } else if (!strcmp(buf, "mtd")) {
841 type = IF_MTD;
842 max_devs = 0;
843 } else if (!strcmp(buf, "sd")) {
844 type = IF_SD;
845 max_devs = 0;
846 } else if (!strcmp(buf, "virtio")) {
847 type = IF_VIRTIO;
848 max_devs = 0;
849 } else if (!strcmp(buf, "xen")) {
850 type = IF_XEN;
851 max_devs = 0;
852 } else if (!strcmp(buf, "none")) {
853 type = IF_NONE;
854 max_devs = 0;
855 } else {
856 fprintf(stderr, "qemu: unsupported bus type '%s'\n", buf);
857 return NULL;
858 }
859 }
860
861 if (cyls || heads || secs) {
862 if (cyls < 1 || (type == IF_IDE && cyls > 16383)) {
863 fprintf(stderr, "qemu: '%s' invalid physical cyls number\n", buf);
864 return NULL;
865 }
866 if (heads < 1 || (type == IF_IDE && heads > 16)) {
867 fprintf(stderr, "qemu: '%s' invalid physical heads number\n", buf);
868 return NULL;
869 }
870 if (secs < 1 || (type == IF_IDE && secs > 63)) {
871 fprintf(stderr, "qemu: '%s' invalid physical secs number\n", buf);
872 return NULL;
873 }
874 }
875
876 if ((buf = qemu_opt_get(opts, "trans")) != NULL) {
877 if (!cyls) {
878 fprintf(stderr,
879 "qemu: '%s' trans must be used with cyls,heads and secs\n",
880 buf);
881 return NULL;
882 }
883 if (!strcmp(buf, "none"))
884 translation = BIOS_ATA_TRANSLATION_NONE;
885 else if (!strcmp(buf, "lba"))
886 translation = BIOS_ATA_TRANSLATION_LBA;
887 else if (!strcmp(buf, "auto"))
888 translation = BIOS_ATA_TRANSLATION_AUTO;
889 else {
890 fprintf(stderr, "qemu: '%s' invalid translation type\n", buf);
891 return NULL;
892 }
893 }
894
895 if ((buf = qemu_opt_get(opts, "media")) != NULL) {
896 if (!strcmp(buf, "disk")) {
897 media = MEDIA_DISK;
898 } else if (!strcmp(buf, "cdrom")) {
899 if (cyls || secs || heads) {
900 fprintf(stderr,
901 "qemu: '%s' invalid physical CHS format\n", buf);
902 return NULL;
903 }
904 media = MEDIA_CDROM;
905 } else {
906 fprintf(stderr, "qemu: '%s' invalid media\n", buf);
907 return NULL;
908 }
909 }
910
911 if ((buf = qemu_opt_get(opts, "cache")) != NULL) {
912 if (!strcmp(buf, "off") || !strcmp(buf, "none"))
913 cache = 0;
914 else if (!strcmp(buf, "writethrough"))
915 cache = 1;
916 else if (!strcmp(buf, "writeback"))
917 cache = 2;
918 else {
919 fprintf(stderr, "qemu: invalid cache option\n");
920 return NULL;
921 }
922 }
923
924 #ifdef CONFIG_LINUX_AIO
925 if ((buf = qemu_opt_get(opts, "aio")) != NULL) {
926 if (!strcmp(buf, "threads"))
927 aio = 0;
928 else if (!strcmp(buf, "native"))
929 aio = 1;
930 else {
931 fprintf(stderr, "qemu: invalid aio option\n");
932 return NULL;
933 }
934 }
935 #endif
936
937 if ((buf = qemu_opt_get(opts, "format")) != NULL) {
938 if (strcmp(buf, "?") == 0) {
939 fprintf(stderr, "qemu: Supported formats:");
940 bdrv_iterate_format(bdrv_format_print, NULL);
941 fprintf(stderr, "\n");
942 return NULL;
943 }
944 drv = bdrv_find_whitelisted_format(buf);
945 if (!drv) {
946 fprintf(stderr, "qemu: '%s' invalid format\n", buf);
947 return NULL;
948 }
949 }
950
951 on_write_error = BLOCK_ERR_STOP_ENOSPC;
952 if ((buf = qemu_opt_get(opts, "werror")) != NULL) {
953 if (type != IF_IDE && type != IF_SCSI && type != IF_VIRTIO) {
954 fprintf(stderr, "werror is no supported by this format\n");
955 return NULL;
956 }
957
958 on_write_error = parse_block_error_action(buf, 0);
959 if (on_write_error < 0) {
960 return NULL;
961 }
962 }
963
964 on_read_error = BLOCK_ERR_REPORT;
965 if ((buf = qemu_opt_get(opts, "rerror")) != NULL) {
966 if (type != IF_IDE && type != IF_VIRTIO) {
967 fprintf(stderr, "rerror is no supported by this format\n");
968 return NULL;
969 }
970
971 on_read_error = parse_block_error_action(buf, 1);
972 if (on_read_error < 0) {
973 return NULL;
974 }
975 }
976
977 if ((devaddr = qemu_opt_get(opts, "addr")) != NULL) {
978 if (type != IF_VIRTIO) {
979 fprintf(stderr, "addr is not supported\n");
980 return NULL;
981 }
982 }
983
984 /* compute bus and unit according index */
985
986 if (index != -1) {
987 if (bus_id != 0 || unit_id != -1) {
988 fprintf(stderr,
989 "qemu: index cannot be used with bus and unit\n");
990 return NULL;
991 }
992 if (max_devs == 0)
993 {
994 unit_id = index;
995 bus_id = 0;
996 } else {
997 unit_id = index % max_devs;
998 bus_id = index / max_devs;
999 }
1000 }
1001
1002 /* if user doesn't specify a unit_id,
1003 * try to find the first free
1004 */
1005
1006 if (unit_id == -1) {
1007 unit_id = 0;
1008 while (drive_get(type, bus_id, unit_id) != NULL) {
1009 unit_id++;
1010 if (max_devs && unit_id >= max_devs) {
1011 unit_id -= max_devs;
1012 bus_id++;
1013 }
1014 }
1015 }
1016
1017 /* check unit id */
1018
1019 if (max_devs && unit_id >= max_devs) {
1020 fprintf(stderr, "qemu: unit %d too big (max is %d)\n",
1021 unit_id, max_devs - 1);
1022 return NULL;
1023 }
1024
1025 /*
1026 * ignore multiple definitions
1027 */
1028
1029 if (drive_get(type, bus_id, unit_id) != NULL) {
1030 *fatal_error = 0;
1031 return NULL;
1032 }
1033
1034 /* init */
1035
1036 dinfo = qemu_mallocz(sizeof(*dinfo));
1037 if ((buf = qemu_opts_id(opts)) != NULL) {
1038 dinfo->id = qemu_strdup(buf);
1039 } else {
1040 /* no id supplied -> create one */
1041 dinfo->id = qemu_mallocz(32);
1042 if (type == IF_IDE || type == IF_SCSI)
1043 mediastr = (media == MEDIA_CDROM) ? "-cd" : "-hd";
1044 if (max_devs)
1045 snprintf(dinfo->id, 32, "%s%i%s%i",
1046 devname, bus_id, mediastr, unit_id);
1047 else
1048 snprintf(dinfo->id, 32, "%s%s%i",
1049 devname, mediastr, unit_id);
1050 }
1051 dinfo->bdrv = bdrv_new(dinfo->id);
1052 dinfo->devaddr = devaddr;
1053 dinfo->type = type;
1054 dinfo->bus = bus_id;
1055 dinfo->unit = unit_id;
1056 dinfo->on_read_error = on_read_error;
1057 dinfo->on_write_error = on_write_error;
1058 dinfo->opts = opts;
1059 if (serial)
1060 strncpy(dinfo->serial, serial, sizeof(serial));
1061 QTAILQ_INSERT_TAIL(&drives, dinfo, next);
1062
1063 switch(type) {
1064 case IF_IDE:
1065 case IF_SCSI:
1066 case IF_XEN:
1067 case IF_NONE:
1068 switch(media) {
1069 case MEDIA_DISK:
1070 if (cyls != 0) {
1071 bdrv_set_geometry_hint(dinfo->bdrv, cyls, heads, secs);
1072 bdrv_set_translation_hint(dinfo->bdrv, translation);
1073 }
1074 break;
1075 case MEDIA_CDROM:
1076 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_CDROM);
1077 break;
1078 }
1079 break;
1080 case IF_SD:
1081 /* FIXME: This isn't really a floppy, but it's a reasonable
1082 approximation. */
1083 case IF_FLOPPY:
1084 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_FLOPPY);
1085 break;
1086 case IF_PFLASH:
1087 case IF_MTD:
1088 break;
1089 case IF_VIRTIO:
1090 /* add virtio block device */
1091 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
1092 qemu_opt_set(opts, "driver", "virtio-blk-pci");
1093 qemu_opt_set(opts, "drive", dinfo->id);
1094 if (devaddr)
1095 qemu_opt_set(opts, "addr", devaddr);
1096 break;
1097 case IF_COUNT:
1098 abort();
1099 }
1100 if (!file) {
1101 *fatal_error = 0;
1102 return NULL;
1103 }
1104 bdrv_flags = 0;
1105 if (snapshot) {
1106 bdrv_flags |= BDRV_O_SNAPSHOT;
1107 cache = 2; /* always use write-back with snapshot */
1108 }
1109 if (cache == 0) /* no caching */
1110 bdrv_flags |= BDRV_O_NOCACHE;
1111 else if (cache == 2) /* write-back */
1112 bdrv_flags |= BDRV_O_CACHE_WB;
1113
1114 if (aio == 1) {
1115 bdrv_flags |= BDRV_O_NATIVE_AIO;
1116 } else {
1117 bdrv_flags &= ~BDRV_O_NATIVE_AIO;
1118 }
1119
1120 if (media == MEDIA_CDROM) {
1121 /* CDROM is fine for any interface, don't check. */
1122 ro = 1;
1123 } else if (ro == 1) {
1124 if (type != IF_SCSI && type != IF_VIRTIO && type != IF_FLOPPY) {
1125 fprintf(stderr, "qemu: readonly flag not supported for drive with this interface\n");
1126 return NULL;
1127 }
1128 }
1129
1130 bdrv_flags |= ro ? 0 : BDRV_O_RDWR;
1131
1132 if (bdrv_open2(dinfo->bdrv, file, bdrv_flags, drv) < 0) {
1133 fprintf(stderr, "qemu: could not open disk image %s: %s\n",
1134 file, strerror(errno));
1135 return NULL;
1136 }
1137
1138 if (bdrv_key_required(dinfo->bdrv))
1139 autostart = 0;
1140 *fatal_error = 0;
1141 return dinfo;
1142 }
1143
1144 static int drive_init_func(QemuOpts *opts, void *opaque)
1145 {
1146 QEMUMachine *machine = opaque;
1147 int fatal_error = 0;
1148
1149 if (drive_init(opts, machine, &fatal_error) == NULL) {
1150 if (fatal_error)
1151 return 1;
1152 }
1153 return 0;
1154 }
1155
1156 static int drive_enable_snapshot(QemuOpts *opts, void *opaque)
1157 {
1158 if (NULL == qemu_opt_get(opts, "snapshot")) {
1159 qemu_opt_set(opts, "snapshot", "on");
1160 }
1161 return 0;
1162 }
1163
1164 void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
1165 {
1166 boot_set_handler = func;
1167 boot_set_opaque = opaque;
1168 }
1169
1170 int qemu_boot_set(const char *boot_devices)
1171 {
1172 if (!boot_set_handler) {
1173 return -EINVAL;
1174 }
1175 return boot_set_handler(boot_set_opaque, boot_devices);
1176 }
1177
1178 static void validate_bootdevices(char *devices)
1179 {
1180 /* We just do some generic consistency checks */
1181 const char *p;
1182 int bitmap = 0;
1183
1184 for (p = devices; *p != '\0'; p++) {
1185 /* Allowed boot devices are:
1186 * a-b: floppy disk drives
1187 * c-f: IDE disk drives
1188 * g-m: machine implementation dependant drives
1189 * n-p: network devices
1190 * It's up to each machine implementation to check if the given boot
1191 * devices match the actual hardware implementation and firmware
1192 * features.
1193 */
1194 if (*p < 'a' || *p > 'p') {
1195 fprintf(stderr, "Invalid boot device '%c'\n", *p);
1196 exit(1);
1197 }
1198 if (bitmap & (1 << (*p - 'a'))) {
1199 fprintf(stderr, "Boot device '%c' was given twice\n", *p);
1200 exit(1);
1201 }
1202 bitmap |= 1 << (*p - 'a');
1203 }
1204 }
1205
1206 static void restore_boot_devices(void *opaque)
1207 {
1208 char *standard_boot_devices = opaque;
1209
1210 qemu_boot_set(standard_boot_devices);
1211
1212 qemu_unregister_reset(restore_boot_devices, standard_boot_devices);
1213 qemu_free(standard_boot_devices);
1214 }
1215
1216 static void numa_add(const char *optarg)
1217 {
1218 char option[128];
1219 char *endptr;
1220 unsigned long long value, endvalue;
1221 int nodenr;
1222
1223 optarg = get_opt_name(option, 128, optarg, ',') + 1;
1224 if (!strcmp(option, "node")) {
1225 if (get_param_value(option, 128, "nodeid", optarg) == 0) {
1226 nodenr = nb_numa_nodes;
1227 } else {
1228 nodenr = strtoull(option, NULL, 10);
1229 }
1230
1231 if (get_param_value(option, 128, "mem", optarg) == 0) {
1232 node_mem[nodenr] = 0;
1233 } else {
1234 value = strtoull(option, &endptr, 0);
1235 switch (*endptr) {
1236 case 0: case 'M': case 'm':
1237 value <<= 20;
1238 break;
1239 case 'G': case 'g':
1240 value <<= 30;
1241 break;
1242 }
1243 node_mem[nodenr] = value;
1244 }
1245 if (get_param_value(option, 128, "cpus", optarg) == 0) {
1246 node_cpumask[nodenr] = 0;
1247 } else {
1248 value = strtoull(option, &endptr, 10);
1249 if (value >= 64) {
1250 value = 63;
1251 fprintf(stderr, "only 64 CPUs in NUMA mode supported.\n");
1252 } else {
1253 if (*endptr == '-') {
1254 endvalue = strtoull(endptr+1, &endptr, 10);
1255 if (endvalue >= 63) {
1256 endvalue = 62;
1257 fprintf(stderr,
1258 "only 63 CPUs in NUMA mode supported.\n");
1259 }
1260 value = (2ULL << endvalue) - (1ULL << value);
1261 } else {
1262 value = 1ULL << value;
1263 }
1264 }
1265 node_cpumask[nodenr] = value;
1266 }
1267 nb_numa_nodes++;
1268 }
1269 return;
1270 }
1271
1272 static void smp_parse(const char *optarg)
1273 {
1274 int smp, sockets = 0, threads = 0, cores = 0;
1275 char *endptr;
1276 char option[128];
1277
1278 smp = strtoul(optarg, &endptr, 10);
1279 if (endptr != optarg) {
1280 if (*endptr == ',') {
1281 endptr++;
1282 }
1283 }
1284 if (get_param_value(option, 128, "sockets", endptr) != 0)
1285 sockets = strtoull(option, NULL, 10);
1286 if (get_param_value(option, 128, "cores", endptr) != 0)
1287 cores = strtoull(option, NULL, 10);
1288 if (get_param_value(option, 128, "threads", endptr) != 0)
1289 threads = strtoull(option, NULL, 10);
1290 if (get_param_value(option, 128, "maxcpus", endptr) != 0)
1291 max_cpus = strtoull(option, NULL, 10);
1292
1293 /* compute missing values, prefer sockets over cores over threads */
1294 if (smp == 0 || sockets == 0) {
1295 sockets = sockets > 0 ? sockets : 1;
1296 cores = cores > 0 ? cores : 1;
1297 threads = threads > 0 ? threads : 1;
1298 if (smp == 0) {
1299 smp = cores * threads * sockets;
1300 }
1301 } else {
1302 if (cores == 0) {
1303 threads = threads > 0 ? threads : 1;
1304 cores = smp / (sockets * threads);
1305 } else {
1306 if (sockets) {
1307 threads = smp / (cores * sockets);
1308 }
1309 }
1310 }
1311 smp_cpus = smp;
1312 smp_cores = cores > 0 ? cores : 1;
1313 smp_threads = threads > 0 ? threads : 1;
1314 if (max_cpus == 0)
1315 max_cpus = smp_cpus;
1316 }
1317
1318 /***********************************************************/
1319 /* USB devices */
1320
1321 static int usb_device_add(const char *devname, int is_hotplug)
1322 {
1323 const char *p;
1324 USBDevice *dev = NULL;
1325
1326 if (!usb_enabled)
1327 return -1;
1328
1329 /* drivers with .usbdevice_name entry in USBDeviceInfo */
1330 dev = usbdevice_create(devname);
1331 if (dev)
1332 goto done;
1333
1334 /* the other ones */
1335 if (strstart(devname, "host:", &p)) {
1336 dev = usb_host_device_open(p);
1337 } else if (!strcmp(devname, "bt") || strstart(devname, "bt:", &p)) {
1338 dev = usb_bt_init(devname[2] ? hci_init(p) :
1339 bt_new_hci(qemu_find_bt_vlan(0)));
1340 } else {
1341 return -1;
1342 }
1343 if (!dev)
1344 return -1;
1345
1346 done:
1347 return 0;
1348 }
1349
1350 static int usb_device_del(const char *devname)
1351 {
1352 int bus_num, addr;
1353 const char *p;
1354
1355 if (strstart(devname, "host:", &p))
1356 return usb_host_device_close(p);
1357
1358 if (!usb_enabled)
1359 return -1;
1360
1361 p = strchr(devname, '.');
1362 if (!p)
1363 return -1;
1364 bus_num = strtoul(devname, NULL, 0);
1365 addr = strtoul(p + 1, NULL, 0);
1366
1367 return usb_device_delete_addr(bus_num, addr);
1368 }
1369
1370 static int usb_parse(const char *cmdline)
1371 {
1372 int r;
1373 r = usb_device_add(cmdline, 0);
1374 if (r < 0) {
1375 fprintf(stderr, "qemu: could not add USB device '%s'\n", cmdline);
1376 }
1377 return r;
1378 }
1379
1380 void do_usb_add(Monitor *mon, const QDict *qdict)
1381 {
1382 const char *devname = qdict_get_str(qdict, "devname");
1383 if (usb_device_add(devname, 1) < 0) {
1384 error_report("could not add USB device '%s'", devname);
1385 }
1386 }
1387
1388 void do_usb_del(Monitor *mon, const QDict *qdict)
1389 {
1390 const char *devname = qdict_get_str(qdict, "devname");
1391 if (usb_device_del(devname) < 0) {
1392 error_report("could not delete USB device '%s'", devname);
1393 }
1394 }
1395
1396 /***********************************************************/
1397 /* PCMCIA/Cardbus */
1398
1399 static struct pcmcia_socket_entry_s {
1400 PCMCIASocket *socket;
1401 struct pcmcia_socket_entry_s *next;
1402 } *pcmcia_sockets = 0;
1403
1404 void pcmcia_socket_register(PCMCIASocket *socket)
1405 {
1406 struct pcmcia_socket_entry_s *entry;
1407
1408 entry = qemu_malloc(sizeof(struct pcmcia_socket_entry_s));
1409 entry->socket = socket;
1410 entry->next = pcmcia_sockets;
1411 pcmcia_sockets = entry;
1412 }
1413
1414 void pcmcia_socket_unregister(PCMCIASocket *socket)
1415 {
1416 struct pcmcia_socket_entry_s *entry, **ptr;
1417
1418 ptr = &pcmcia_sockets;
1419 for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
1420 if (entry->socket == socket) {
1421 *ptr = entry->next;
1422 qemu_free(entry);
1423 }
1424 }
1425
1426 void pcmcia_info(Monitor *mon)
1427 {
1428 struct pcmcia_socket_entry_s *iter;
1429
1430 if (!pcmcia_sockets)
1431 monitor_printf(mon, "No PCMCIA sockets\n");
1432
1433 for (iter = pcmcia_sockets; iter; iter = iter->next)
1434 monitor_printf(mon, "%s: %s\n", iter->socket->slot_string,
1435 iter->socket->attached ? iter->socket->card_string :
1436 "Empty");
1437 }
1438
1439 /***********************************************************/
1440 /* I/O handling */
1441
1442 typedef struct IOHandlerRecord {
1443 int fd;
1444 IOCanReadHandler *fd_read_poll;
1445 IOHandler *fd_read;
1446 IOHandler *fd_write;
1447 int deleted;
1448 void *opaque;
1449 /* temporary data */
1450 struct pollfd *ufd;
1451 QLIST_ENTRY(IOHandlerRecord) next;
1452 } IOHandlerRecord;
1453
1454 static QLIST_HEAD(, IOHandlerRecord) io_handlers =
1455 QLIST_HEAD_INITIALIZER(io_handlers);
1456
1457
1458 /* XXX: fd_read_poll should be suppressed, but an API change is
1459 necessary in the character devices to suppress fd_can_read(). */
1460 int qemu_set_fd_handler2(int fd,
1461 IOCanReadHandler *fd_read_poll,
1462 IOHandler *fd_read,
1463 IOHandler *fd_write,
1464 void *opaque)
1465 {
1466 IOHandlerRecord *ioh;
1467
1468 if (!fd_read && !fd_write) {
1469 QLIST_FOREACH(ioh, &io_handlers, next) {
1470 if (ioh->fd == fd) {
1471 ioh->deleted = 1;
1472 break;
1473 }
1474 }
1475 } else {
1476 QLIST_FOREACH(ioh, &io_handlers, next) {
1477 if (ioh->fd == fd)
1478 goto found;
1479 }
1480 ioh = qemu_mallocz(sizeof(IOHandlerRecord));
1481 QLIST_INSERT_HEAD(&io_handlers, ioh, next);
1482 found:
1483 ioh->fd = fd;
1484 ioh->fd_read_poll = fd_read_poll;
1485 ioh->fd_read = fd_read;
1486 ioh->fd_write = fd_write;
1487 ioh->opaque = opaque;
1488 ioh->deleted = 0;
1489 }
1490 return 0;
1491 }
1492
1493 int qemu_set_fd_handler(int fd,
1494 IOHandler *fd_read,
1495 IOHandler *fd_write,
1496 void *opaque)
1497 {
1498 return qemu_set_fd_handler2(fd, NULL, fd_read, fd_write, opaque);
1499 }
1500
1501 #ifdef _WIN32
1502 /***********************************************************/
1503 /* Polling handling */
1504
1505 typedef struct PollingEntry {
1506 PollingFunc *func;
1507 void *opaque;
1508 struct PollingEntry *next;
1509 } PollingEntry;
1510
1511 static PollingEntry *first_polling_entry;
1512
1513 int qemu_add_polling_cb(PollingFunc *func, void *opaque)
1514 {
1515 PollingEntry **ppe, *pe;
1516 pe = qemu_mallocz(sizeof(PollingEntry));
1517 pe->func = func;
1518 pe->opaque = opaque;
1519 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next);
1520 *ppe = pe;
1521 return 0;
1522 }
1523
1524 void qemu_del_polling_cb(PollingFunc *func, void *opaque)
1525 {
1526 PollingEntry **ppe, *pe;
1527 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next) {
1528 pe = *ppe;
1529 if (pe->func == func && pe->opaque == opaque) {
1530 *ppe = pe->next;
1531 qemu_free(pe);
1532 break;
1533 }
1534 }
1535 }
1536
1537 /***********************************************************/
1538 /* Wait objects support */
1539 typedef struct WaitObjects {
1540 int num;
1541 HANDLE events[MAXIMUM_WAIT_OBJECTS + 1];
1542 WaitObjectFunc *func[MAXIMUM_WAIT_OBJECTS + 1];
1543 void *opaque[MAXIMUM_WAIT_OBJECTS + 1];
1544 } WaitObjects;
1545
1546 static WaitObjects wait_objects = {0};
1547
1548 int qemu_add_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
1549 {
1550 WaitObjects *w = &wait_objects;
1551
1552 if (w->num >= MAXIMUM_WAIT_OBJECTS)
1553 return -1;
1554 w->events[w->num] = handle;
1555 w->func[w->num] = func;
1556 w->opaque[w->num] = opaque;
1557 w->num++;
1558 return 0;
1559 }
1560
1561 void qemu_del_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
1562 {
1563 int i, found;
1564 WaitObjects *w = &wait_objects;
1565
1566 found = 0;
1567 for (i = 0; i < w->num; i++) {
1568 if (w->events[i] == handle)
1569 found = 1;
1570 if (found) {
1571 w->events[i] = w->events[i + 1];
1572 w->func[i] = w->func[i + 1];
1573 w->opaque[i] = w->opaque[i + 1];
1574 }
1575 }
1576 if (found)
1577 w->num--;
1578 }
1579 #endif
1580
1581 /***********************************************************/
1582 /* machine registration */
1583
1584 static QEMUMachine *first_machine = NULL;
1585 QEMUMachine *current_machine = NULL;
1586
1587 int qemu_register_machine(QEMUMachine *m)
1588 {
1589 QEMUMachine **pm;
1590 pm = &first_machine;
1591 while (*pm != NULL)
1592 pm = &(*pm)->next;
1593 m->next = NULL;
1594 *pm = m;
1595 return 0;
1596 }
1597
1598 static QEMUMachine *find_machine(const char *name)
1599 {
1600 QEMUMachine *m;
1601
1602 for(m = first_machine; m != NULL; m = m->next) {
1603 if (!strcmp(m->name, name))
1604 return m;
1605 if (m->alias && !strcmp(m->alias, name))
1606 return m;
1607 }
1608 return NULL;
1609 }
1610
1611 static QEMUMachine *find_default_machine(void)
1612 {
1613 QEMUMachine *m;
1614
1615 for(m = first_machine; m != NULL; m = m->next) {
1616 if (m->is_default) {
1617 return m;
1618 }
1619 }
1620 return NULL;
1621 }
1622
1623 /***********************************************************/
1624 /* main execution loop */
1625
1626 static void gui_update(void *opaque)
1627 {
1628 uint64_t interval = GUI_REFRESH_INTERVAL;
1629 DisplayState *ds = opaque;
1630 DisplayChangeListener *dcl = ds->listeners;
1631
1632 qemu_flush_coalesced_mmio_buffer();
1633 dpy_refresh(ds);
1634
1635 while (dcl != NULL) {
1636 if (dcl->gui_timer_interval &&
1637 dcl->gui_timer_interval < interval)
1638 interval = dcl->gui_timer_interval;
1639 dcl = dcl->next;
1640 }
1641 qemu_mod_timer(ds->gui_timer, interval + qemu_get_clock(rt_clock));
1642 }
1643
1644 static void nographic_update(void *opaque)
1645 {
1646 uint64_t interval = GUI_REFRESH_INTERVAL;
1647
1648 qemu_flush_coalesced_mmio_buffer();
1649 qemu_mod_timer(nographic_timer, interval + qemu_get_clock(rt_clock));
1650 }
1651
1652 struct vm_change_state_entry {
1653 VMChangeStateHandler *cb;
1654 void *opaque;
1655 QLIST_ENTRY (vm_change_state_entry) entries;
1656 };
1657
1658 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1659
1660 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1661 void *opaque)
1662 {
1663 VMChangeStateEntry *e;
1664
1665 e = qemu_mallocz(sizeof (*e));
1666
1667 e->cb = cb;
1668 e->opaque = opaque;
1669 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1670 return e;
1671 }
1672
1673 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1674 {
1675 QLIST_REMOVE (e, entries);
1676 qemu_free (e);
1677 }
1678
1679 void vm_state_notify(int running, int reason)
1680 {
1681 VMChangeStateEntry *e;
1682
1683 for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
1684 e->cb(e->opaque, running, reason);
1685 }
1686 }
1687
1688 void vm_start(void)
1689 {
1690 if (!vm_running) {
1691 cpu_enable_ticks();
1692 vm_running = 1;
1693 vm_state_notify(1, 0);
1694 resume_all_vcpus();
1695 }
1696 }
1697
1698 /* reset/shutdown handler */
1699
1700 typedef struct QEMUResetEntry {
1701 QTAILQ_ENTRY(QEMUResetEntry) entry;
1702 QEMUResetHandler *func;
1703 void *opaque;
1704 } QEMUResetEntry;
1705
1706 static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
1707 QTAILQ_HEAD_INITIALIZER(reset_handlers);
1708 static int reset_requested;
1709 static int shutdown_requested;
1710 static int powerdown_requested;
1711 int debug_requested;
1712 int vmstop_requested;
1713
1714 int qemu_shutdown_requested(void)
1715 {
1716 int r = shutdown_requested;
1717 shutdown_requested = 0;
1718 return r;
1719 }
1720
1721 int qemu_reset_requested(void)
1722 {
1723 int r = reset_requested;
1724 reset_requested = 0;
1725 return r;
1726 }
1727
1728 int qemu_powerdown_requested(void)
1729 {
1730 int r = powerdown_requested;
1731 powerdown_requested = 0;
1732 return r;
1733 }
1734
1735 static int qemu_debug_requested(void)
1736 {
1737 int r = debug_requested;
1738 debug_requested = 0;
1739 return r;
1740 }
1741
1742 static int qemu_vmstop_requested(void)
1743 {
1744 int r = vmstop_requested;
1745 vmstop_requested = 0;
1746 return r;
1747 }
1748
1749 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
1750 {
1751 QEMUResetEntry *re = qemu_mallocz(sizeof(QEMUResetEntry));
1752
1753 re->func = func;
1754 re->opaque = opaque;
1755 QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
1756 }
1757
1758 void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
1759 {
1760 QEMUResetEntry *re;
1761
1762 QTAILQ_FOREACH(re, &reset_handlers, entry) {
1763 if (re->func == func && re->opaque == opaque) {
1764 QTAILQ_REMOVE(&reset_handlers, re, entry);
1765 qemu_free(re);
1766 return;
1767 }
1768 }
1769 }
1770
1771 void qemu_system_reset(void)
1772 {
1773 QEMUResetEntry *re, *nre;
1774
1775 /* reset all devices */
1776 QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
1777 re->func(re->opaque);
1778 }
1779 monitor_protocol_event(QEVENT_RESET, NULL);
1780 cpu_synchronize_all_post_reset();
1781 }
1782
1783 void qemu_system_reset_request(void)
1784 {
1785 if (no_reboot) {
1786 shutdown_requested = 1;
1787 } else {
1788 reset_requested = 1;
1789 }
1790 qemu_notify_event();
1791 }
1792
1793 void qemu_system_shutdown_request(void)
1794 {
1795 shutdown_requested = 1;
1796 qemu_notify_event();
1797 }
1798
1799 void qemu_system_powerdown_request(void)
1800 {
1801 powerdown_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 return 1;
1942 }
1943
1944 qemu_irq qemu_system_powerdown;
1945
1946 static void main_loop(void)
1947 {
1948 int r;
1949
1950 qemu_main_loop_start();
1951
1952 for (;;) {
1953 do {
1954 bool nonblocking = false;
1955 #ifdef CONFIG_PROFILER
1956 int64_t ti;
1957 #endif
1958 #ifndef CONFIG_IOTHREAD
1959 nonblocking = tcg_cpu_exec();
1960 #endif
1961 #ifdef CONFIG_PROFILER
1962 ti = profile_getclock();
1963 #endif
1964 main_loop_wait(nonblocking);
1965 #ifdef CONFIG_PROFILER
1966 dev_time += profile_getclock() - ti;
1967 #endif
1968 } while (vm_can_run());
1969
1970 if ((r = qemu_debug_requested())) {
1971 vm_stop(r);
1972 }
1973 if (qemu_shutdown_requested()) {
1974 monitor_protocol_event(QEVENT_SHUTDOWN, NULL);
1975 if (no_shutdown) {
1976 vm_stop(0);
1977 no_shutdown = 0;
1978 } else
1979 break;
1980 }
1981 if (qemu_reset_requested()) {
1982 pause_all_vcpus();
1983 qemu_system_reset();
1984 resume_all_vcpus();
1985 }
1986 if (qemu_powerdown_requested()) {
1987 monitor_protocol_event(QEVENT_POWERDOWN, NULL);
1988 qemu_irq_raise(qemu_system_powerdown);
1989 }
1990 if ((r = qemu_vmstop_requested())) {
1991 vm_stop(r);
1992 }
1993 }
1994 pause_all_vcpus();
1995 }
1996
1997 static void version(void)
1998 {
1999 printf("QEMU PC emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
2000 }
2001
2002 static void help(int exitcode)
2003 {
2004 const char *options_help =
2005 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
2006 opt_help
2007 #define DEFHEADING(text) stringify(text) "\n"
2008 #include "qemu-options.h"
2009 #undef DEF
2010 #undef DEFHEADING
2011 #undef GEN_DOCS
2012 ;
2013 version();
2014 printf("usage: %s [options] [disk_image]\n"
2015 "\n"
2016 "'disk_image' is a raw hard image image for IDE hard disk 0\n"
2017 "\n"
2018 "%s\n"
2019 "During emulation, the following keys are useful:\n"
2020 "ctrl-alt-f toggle full screen\n"
2021 "ctrl-alt-n switch to virtual console 'n'\n"
2022 "ctrl-alt toggle mouse and keyboard grab\n"
2023 "\n"
2024 "When using -nographic, press 'ctrl-a h' to get some help.\n",
2025 "qemu",
2026 options_help);
2027 exit(exitcode);
2028 }
2029
2030 #define HAS_ARG 0x0001
2031
2032 enum {
2033 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
2034 opt_enum,
2035 #define DEFHEADING(text)
2036 #include "qemu-options.h"
2037 #undef DEF
2038 #undef DEFHEADING
2039 #undef GEN_DOCS
2040 };
2041
2042 typedef struct QEMUOption {
2043 const char *name;
2044 int flags;
2045 int index;
2046 uint32_t arch_mask;
2047 } QEMUOption;
2048
2049 static const QEMUOption qemu_options[] = {
2050 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
2051 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
2052 { option, opt_arg, opt_enum, arch_mask },
2053 #define DEFHEADING(text)
2054 #include "qemu-options.h"
2055 #undef DEF
2056 #undef DEFHEADING
2057 #undef GEN_DOCS
2058 { NULL },
2059 };
2060 static void select_vgahw (const char *p)
2061 {
2062 const char *opts;
2063
2064 default_vga = 0;
2065 vga_interface_type = VGA_NONE;
2066 if (strstart(p, "std", &opts)) {
2067 vga_interface_type = VGA_STD;
2068 } else if (strstart(p, "cirrus", &opts)) {
2069 vga_interface_type = VGA_CIRRUS;
2070 } else if (strstart(p, "vmware", &opts)) {
2071 vga_interface_type = VGA_VMWARE;
2072 } else if (strstart(p, "xenfb", &opts)) {
2073 vga_interface_type = VGA_XENFB;
2074 } else if (!strstart(p, "none", &opts)) {
2075 invalid_vga:
2076 fprintf(stderr, "Unknown vga type: %s\n", p);
2077 exit(1);
2078 }
2079 while (*opts) {
2080 const char *nextopt;
2081
2082 if (strstart(opts, ",retrace=", &nextopt)) {
2083 opts = nextopt;
2084 if (strstart(opts, "dumb", &nextopt))
2085 vga_retrace_method = VGA_RETRACE_DUMB;
2086 else if (strstart(opts, "precise", &nextopt))
2087 vga_retrace_method = VGA_RETRACE_PRECISE;
2088 else goto invalid_vga;
2089 } else goto invalid_vga;
2090 opts = nextopt;
2091 }
2092 }
2093
2094 static int balloon_parse(const char *arg)
2095 {
2096 QemuOpts *opts;
2097
2098 if (strcmp(arg, "none") == 0) {
2099 return 0;
2100 }
2101
2102 if (!strncmp(arg, "virtio", 6)) {
2103 if (arg[6] == ',') {
2104 /* have params -> parse them */
2105 opts = qemu_opts_parse(&qemu_device_opts, arg+7, 0);
2106 if (!opts)
2107 return -1;
2108 } else {
2109 /* create empty opts */
2110 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2111 }
2112 qemu_opt_set(opts, "driver", "virtio-balloon-pci");
2113 return 0;
2114 }
2115
2116 return -1;
2117 }
2118
2119 #ifdef _WIN32
2120 static BOOL WINAPI qemu_ctrl_handler(DWORD type)
2121 {
2122 exit(STATUS_CONTROL_C_EXIT);
2123 return TRUE;
2124 }
2125 #endif
2126
2127 #ifndef _WIN32
2128
2129 static void termsig_handler(int signal)
2130 {
2131 qemu_system_shutdown_request();
2132 }
2133
2134 static void sigchld_handler(int signal)
2135 {
2136 waitpid(-1, NULL, WNOHANG);
2137 }
2138
2139 static void sighandler_setup(void)
2140 {
2141 struct sigaction act;
2142
2143 memset(&act, 0, sizeof(act));
2144 act.sa_handler = termsig_handler;
2145 sigaction(SIGINT, &act, NULL);
2146 sigaction(SIGHUP, &act, NULL);
2147 sigaction(SIGTERM, &act, NULL);
2148
2149 act.sa_handler = sigchld_handler;
2150 act.sa_flags = SA_NOCLDSTOP;
2151 sigaction(SIGCHLD, &act, NULL);
2152 }
2153
2154 #endif
2155
2156 #ifdef _WIN32
2157 /* Look for support files in the same directory as the executable. */
2158 static char *find_datadir(const char *argv0)
2159 {
2160 char *p;
2161 char buf[MAX_PATH];
2162 DWORD len;
2163
2164 len = GetModuleFileName(NULL, buf, sizeof(buf) - 1);
2165 if (len == 0) {
2166 return NULL;
2167 }
2168
2169 buf[len] = 0;
2170 p = buf + len - 1;
2171 while (p != buf && *p != '\\')
2172 p--;
2173 *p = 0;
2174 if (access(buf, R_OK) == 0) {
2175 return qemu_strdup(buf);
2176 }
2177 return NULL;
2178 }
2179 #else /* !_WIN32 */
2180
2181 /* Find a likely location for support files using the location of the binary.
2182 For installed binaries this will be "$bindir/../share/qemu". When
2183 running from the build tree this will be "$bindir/../pc-bios". */
2184 #define SHARE_SUFFIX "/share/qemu"
2185 #define BUILD_SUFFIX "/pc-bios"
2186 static char *find_datadir(const char *argv0)
2187 {
2188 char *dir;
2189 char *p = NULL;
2190 char *res;
2191 char buf[PATH_MAX];
2192 size_t max_len;
2193
2194 #if defined(__linux__)
2195 {
2196 int len;
2197 len = readlink("/proc/self/exe", buf, sizeof(buf) - 1);
2198 if (len > 0) {
2199 buf[len] = 0;
2200 p = buf;
2201 }
2202 }
2203 #elif defined(__FreeBSD__)
2204 {
2205 static int mib[4] = {CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, -1};
2206 size_t len = sizeof(buf) - 1;
2207
2208 *buf = '\0';
2209 if (!sysctl(mib, sizeof(mib)/sizeof(*mib), buf, &len, NULL, 0) &&
2210 *buf) {
2211 buf[sizeof(buf) - 1] = '\0';
2212 p = buf;
2213 }
2214 }
2215 #endif
2216 /* If we don't have any way of figuring out the actual executable
2217 location then try argv[0]. */
2218 if (!p) {
2219 p = realpath(argv0, buf);
2220 if (!p) {
2221 return NULL;
2222 }
2223 }
2224 dir = dirname(p);
2225 dir = dirname(dir);
2226
2227 max_len = strlen(dir) +
2228 MAX(strlen(SHARE_SUFFIX), strlen(BUILD_SUFFIX)) + 1;
2229 res = qemu_mallocz(max_len);
2230 snprintf(res, max_len, "%s%s", dir, SHARE_SUFFIX);
2231 if (access(res, R_OK)) {
2232 snprintf(res, max_len, "%s%s", dir, BUILD_SUFFIX);
2233 if (access(res, R_OK)) {
2234 qemu_free(res);
2235 res = NULL;
2236 }
2237 }
2238
2239 return res;
2240 }
2241 #undef SHARE_SUFFIX
2242 #undef BUILD_SUFFIX
2243 #endif
2244
2245 char *qemu_find_file(int type, const char *name)
2246 {
2247 int len;
2248 const char *subdir;
2249 char *buf;
2250
2251 /* If name contains path separators then try it as a straight path. */
2252 if ((strchr(name, '/') || strchr(name, '\\'))
2253 && access(name, R_OK) == 0) {
2254 return qemu_strdup(name);
2255 }
2256 switch (type) {
2257 case QEMU_FILE_TYPE_BIOS:
2258 subdir = "";
2259 break;
2260 case QEMU_FILE_TYPE_KEYMAP:
2261 subdir = "keymaps/";
2262 break;
2263 default:
2264 abort();
2265 }
2266 len = strlen(data_dir) + strlen(name) + strlen(subdir) + 2;
2267 buf = qemu_mallocz(len);
2268 snprintf(buf, len, "%s/%s%s", data_dir, subdir, name);
2269 if (access(buf, R_OK)) {
2270 qemu_free(buf);
2271 return NULL;
2272 }
2273 return buf;
2274 }
2275
2276 static int device_help_func(QemuOpts *opts, void *opaque)
2277 {
2278 return qdev_device_help(opts);
2279 }
2280
2281 static int device_init_func(QemuOpts *opts, void *opaque)
2282 {
2283 DeviceState *dev;
2284
2285 dev = qdev_device_add(opts);
2286 if (!dev)
2287 return -1;
2288 return 0;
2289 }
2290
2291 static int chardev_init_func(QemuOpts *opts, void *opaque)
2292 {
2293 CharDriverState *chr;
2294
2295 chr = qemu_chr_open_opts(opts, NULL);
2296 if (!chr)
2297 return -1;
2298 return 0;
2299 }
2300
2301 static int mon_init_func(QemuOpts *opts, void *opaque)
2302 {
2303 CharDriverState *chr;
2304 const char *chardev;
2305 const char *mode;
2306 int flags;
2307
2308 mode = qemu_opt_get(opts, "mode");
2309 if (mode == NULL) {
2310 mode = "readline";
2311 }
2312 if (strcmp(mode, "readline") == 0) {
2313 flags = MONITOR_USE_READLINE;
2314 } else if (strcmp(mode, "control") == 0) {
2315 flags = MONITOR_USE_CONTROL;
2316 } else {
2317 fprintf(stderr, "unknown monitor mode \"%s\"\n", mode);
2318 exit(1);
2319 }
2320
2321 if (qemu_opt_get_bool(opts, "default", 0))
2322 flags |= MONITOR_IS_DEFAULT;
2323
2324 chardev = qemu_opt_get(opts, "chardev");
2325 chr = qemu_chr_find(chardev);
2326 if (chr == NULL) {
2327 fprintf(stderr, "chardev \"%s\" not found\n", chardev);
2328 exit(1);
2329 }
2330
2331 monitor_init(chr, flags);
2332 return 0;
2333 }
2334
2335 static void monitor_parse(const char *optarg, const char *mode)
2336 {
2337 static int monitor_device_index = 0;
2338 QemuOpts *opts;
2339 const char *p;
2340 char label[32];
2341 int def = 0;
2342
2343 if (strstart(optarg, "chardev:", &p)) {
2344 snprintf(label, sizeof(label), "%s", p);
2345 } else {
2346 if (monitor_device_index) {
2347 snprintf(label, sizeof(label), "monitor%d",
2348 monitor_device_index);
2349 } else {
2350 snprintf(label, sizeof(label), "monitor");
2351 def = 1;
2352 }
2353 opts = qemu_chr_parse_compat(label, optarg);
2354 if (!opts) {
2355 fprintf(stderr, "parse error: %s\n", optarg);
2356 exit(1);
2357 }
2358 }
2359
2360 opts = qemu_opts_create(&qemu_mon_opts, label, 1);
2361 if (!opts) {
2362 fprintf(stderr, "duplicate chardev: %s\n", label);
2363 exit(1);
2364 }
2365 qemu_opt_set(opts, "mode", mode);
2366 qemu_opt_set(opts, "chardev", label);
2367 if (def)
2368 qemu_opt_set(opts, "default", "on");
2369 monitor_device_index++;
2370 }
2371
2372 struct device_config {
2373 enum {
2374 DEV_USB, /* -usbdevice */
2375 DEV_BT, /* -bt */
2376 DEV_SERIAL, /* -serial */
2377 DEV_PARALLEL, /* -parallel */
2378 DEV_VIRTCON, /* -virtioconsole */
2379 DEV_DEBUGCON, /* -debugcon */
2380 } type;
2381 const char *cmdline;
2382 QTAILQ_ENTRY(device_config) next;
2383 };
2384 QTAILQ_HEAD(, device_config) device_configs = QTAILQ_HEAD_INITIALIZER(device_configs);
2385
2386 static void add_device_config(int type, const char *cmdline)
2387 {
2388 struct device_config *conf;
2389
2390 conf = qemu_mallocz(sizeof(*conf));
2391 conf->type = type;
2392 conf->cmdline = cmdline;
2393 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2394 }
2395
2396 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2397 {
2398 struct device_config *conf;
2399 int rc;
2400
2401 QTAILQ_FOREACH(conf, &device_configs, next) {
2402 if (conf->type != type)
2403 continue;
2404 rc = func(conf->cmdline);
2405 if (0 != rc)
2406 return rc;
2407 }
2408 return 0;
2409 }
2410
2411 static int serial_parse(const char *devname)
2412 {
2413 static int index = 0;
2414 char label[32];
2415
2416 if (strcmp(devname, "none") == 0)
2417 return 0;
2418 if (index == MAX_SERIAL_PORTS) {
2419 fprintf(stderr, "qemu: too many serial ports\n");
2420 exit(1);
2421 }
2422 snprintf(label, sizeof(label), "serial%d", index);
2423 serial_hds[index] = qemu_chr_open(label, devname, NULL);
2424 if (!serial_hds[index]) {
2425 fprintf(stderr, "qemu: could not open serial device '%s': %s\n",
2426 devname, strerror(errno));
2427 return -1;
2428 }
2429 index++;
2430 return 0;
2431 }
2432
2433 static int parallel_parse(const char *devname)
2434 {
2435 static int index = 0;
2436 char label[32];
2437
2438 if (strcmp(devname, "none") == 0)
2439 return 0;
2440 if (index == MAX_PARALLEL_PORTS) {
2441 fprintf(stderr, "qemu: too many parallel ports\n");
2442 exit(1);
2443 }
2444 snprintf(label, sizeof(label), "parallel%d", index);
2445 parallel_hds[index] = qemu_chr_open(label, devname, NULL);
2446 if (!parallel_hds[index]) {
2447 fprintf(stderr, "qemu: could not open parallel device '%s': %s\n",
2448 devname, strerror(errno));
2449 return -1;
2450 }
2451 index++;
2452 return 0;
2453 }
2454
2455 static int virtcon_parse(const char *devname)
2456 {
2457 static int index = 0;
2458 char label[32];
2459 QemuOpts *bus_opts, *dev_opts;
2460
2461 if (strcmp(devname, "none") == 0)
2462 return 0;
2463 if (index == MAX_VIRTIO_CONSOLES) {
2464 fprintf(stderr, "qemu: too many virtio consoles\n");
2465 exit(1);
2466 }
2467
2468 bus_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2469 qemu_opt_set(bus_opts, "driver", "virtio-serial");
2470
2471 dev_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2472 qemu_opt_set(dev_opts, "driver", "virtconsole");
2473
2474 snprintf(label, sizeof(label), "virtcon%d", index);
2475 virtcon_hds[index] = qemu_chr_open(label, devname, NULL);
2476 if (!virtcon_hds[index]) {
2477 fprintf(stderr, "qemu: could not open virtio console '%s': %s\n",
2478 devname, strerror(errno));
2479 return -1;
2480 }
2481 qemu_opt_set(dev_opts, "chardev", label);
2482
2483 index++;
2484 return 0;
2485 }
2486
2487 static int debugcon_parse(const char *devname)
2488 {
2489 QemuOpts *opts;
2490
2491 if (!qemu_chr_open("debugcon", devname, NULL)) {
2492 exit(1);
2493 }
2494 opts = qemu_opts_create(&qemu_device_opts, "debugcon", 1);
2495 if (!opts) {
2496 fprintf(stderr, "qemu: already have a debugcon device\n");
2497 exit(1);
2498 }
2499 qemu_opt_set(opts, "driver", "isa-debugcon");
2500 qemu_opt_set(opts, "chardev", "debugcon");
2501 return 0;
2502 }
2503
2504 static const QEMUOption *lookup_opt(int argc, char **argv,
2505 const char **poptarg, int *poptind)
2506 {
2507 const QEMUOption *popt;
2508 int optind = *poptind;
2509 char *r = argv[optind];
2510 const char *optarg;
2511
2512 loc_set_cmdline(argv, optind, 1);
2513 optind++;
2514 /* Treat --foo the same as -foo. */
2515 if (r[1] == '-')
2516 r++;
2517 popt = qemu_options;
2518 for(;;) {
2519 if (!popt->name) {
2520 error_report("invalid option");
2521 exit(1);
2522 }
2523 if (!strcmp(popt->name, r + 1))
2524 break;
2525 popt++;
2526 }
2527 if (popt->flags & HAS_ARG) {
2528 if (optind >= argc) {
2529 error_report("requires an argument");
2530 exit(1);
2531 }
2532 optarg = argv[optind++];
2533 loc_set_cmdline(argv, optind - 2, 2);
2534 } else {
2535 optarg = NULL;
2536 }
2537
2538 *poptarg = optarg;
2539 *poptind = optind;
2540
2541 return popt;
2542 }
2543
2544 int main(int argc, char **argv, char **envp)
2545 {
2546 const char *gdbstub_dev = NULL;
2547 int i;
2548 int snapshot, linux_boot;
2549 const char *icount_option = NULL;
2550 const char *initrd_filename;
2551 const char *kernel_filename, *kernel_cmdline;
2552 char boot_devices[33] = "cad"; /* default to HD->floppy->CD-ROM */
2553 DisplayState *ds;
2554 DisplayChangeListener *dcl;
2555 int cyls, heads, secs, translation;
2556 QemuOpts *hda_opts = NULL, *opts;
2557 int optind;
2558 const char *optarg;
2559 const char *loadvm = NULL;
2560 QEMUMachine *machine;
2561 const char *cpu_model;
2562 #ifndef _WIN32
2563 int fds[2];
2564 #endif
2565 int tb_size;
2566 const char *pid_file = NULL;
2567 const char *incoming = NULL;
2568 #ifndef _WIN32
2569 int fd = 0;
2570 struct passwd *pwd = NULL;
2571 const char *chroot_dir = NULL;
2572 const char *run_as = NULL;
2573 #endif
2574 int show_vnc_port = 0;
2575 int defconfig = 1;
2576
2577 error_set_progname(argv[0]);
2578
2579 init_clocks();
2580
2581 qemu_cache_utils_init(envp);
2582
2583 QLIST_INIT (&vm_change_state_head);
2584 #ifndef _WIN32
2585 {
2586 struct sigaction act;
2587 sigfillset(&act.sa_mask);
2588 act.sa_flags = 0;
2589 act.sa_handler = SIG_IGN;
2590 sigaction(SIGPIPE, &act, NULL);
2591 }
2592 #else
2593 SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE);
2594 /* Note: cpu_interrupt() is currently not SMP safe, so we force
2595 QEMU to run on a single CPU */
2596 {
2597 HANDLE h;
2598 DWORD mask, smask;
2599 int i;
2600 h = GetCurrentProcess();
2601 if (GetProcessAffinityMask(h, &mask, &smask)) {
2602 for(i = 0; i < 32; i++) {
2603 if (mask & (1 << i))
2604 break;
2605 }
2606 if (i != 32) {
2607 mask = 1 << i;
2608 SetProcessAffinityMask(h, mask);
2609 }
2610 }
2611 }
2612 #endif
2613
2614 module_call_init(MODULE_INIT_MACHINE);
2615 machine = find_default_machine();
2616 cpu_model = NULL;
2617 initrd_filename = NULL;
2618 ram_size = 0;
2619 snapshot = 0;
2620 kernel_filename = NULL;
2621 kernel_cmdline = "";
2622 cyls = heads = secs = 0;
2623 translation = BIOS_ATA_TRANSLATION_AUTO;
2624
2625 for (i = 0; i < MAX_NODES; i++) {
2626 node_mem[i] = 0;
2627 node_cpumask[i] = 0;
2628 }
2629
2630 nb_numa_nodes = 0;
2631 nb_nics = 0;
2632
2633 tb_size = 0;
2634 autostart= 1;
2635
2636 /* first pass of option parsing */
2637 optind = 1;
2638 while (optind < argc) {
2639 if (argv[optind][0] != '-') {
2640 /* disk image */
2641 optind++;
2642 continue;
2643 } else {
2644 const QEMUOption *popt;
2645
2646 popt = lookup_opt(argc, argv, &optarg, &optind);
2647 switch (popt->index) {
2648 case QEMU_OPTION_nodefconfig:
2649 defconfig=0;
2650 break;
2651 }
2652 }
2653 }
2654
2655 if (defconfig) {
2656 const char *fname;
2657 FILE *fp;
2658
2659 fname = CONFIG_QEMU_CONFDIR "/qemu.conf";
2660 fp = fopen(fname, "r");
2661 if (fp) {
2662 if (qemu_config_parse(fp, fname) != 0) {
2663 exit(1);
2664 }
2665 fclose(fp);
2666 }
2667
2668 fname = arch_config_name;
2669 fp = fopen(fname, "r");
2670 if (fp) {
2671 if (qemu_config_parse(fp, fname) != 0) {
2672 exit(1);
2673 }
2674 fclose(fp);
2675 }
2676 }
2677 cpudef_init();
2678
2679 /* second pass of option parsing */
2680 optind = 1;
2681 for(;;) {
2682 if (optind >= argc)
2683 break;
2684 if (argv[optind][0] != '-') {
2685 hda_opts = drive_add(argv[optind++], HD_ALIAS, 0);
2686 } else {
2687 const QEMUOption *popt;
2688
2689 popt = lookup_opt(argc, argv, &optarg, &optind);
2690 if (!(popt->arch_mask & arch_type)) {
2691 printf("Option %s not supported for this target\n", popt->name);
2692 exit(1);
2693 }
2694 switch(popt->index) {
2695 case QEMU_OPTION_M:
2696 machine = find_machine(optarg);
2697 if (!machine) {
2698 QEMUMachine *m;
2699 printf("Supported machines are:\n");
2700 for(m = first_machine; m != NULL; m = m->next) {
2701 if (m->alias)
2702 printf("%-10s %s (alias of %s)\n",
2703 m->alias, m->desc, m->name);
2704 printf("%-10s %s%s\n",
2705 m->name, m->desc,
2706 m->is_default ? " (default)" : "");
2707 }
2708 exit(*optarg != '?');
2709 }
2710 break;
2711 case QEMU_OPTION_cpu:
2712 /* hw initialization will check this */
2713 if (*optarg == '?') {
2714 /* XXX: implement xxx_cpu_list for targets that still miss it */
2715 #if defined(cpu_list_id)
2716 cpu_list_id(stdout, &fprintf, optarg);
2717 #elif defined(cpu_list)
2718 cpu_list(stdout, &fprintf); /* deprecated */
2719 #endif
2720 exit(0);
2721 } else {
2722 cpu_model = optarg;
2723 }
2724 break;
2725 case QEMU_OPTION_initrd:
2726 initrd_filename = optarg;
2727 break;
2728 case QEMU_OPTION_hda:
2729 if (cyls == 0)
2730 hda_opts = drive_add(optarg, HD_ALIAS, 0);
2731 else
2732 hda_opts = drive_add(optarg, HD_ALIAS
2733 ",cyls=%d,heads=%d,secs=%d%s",
2734 0, cyls, heads, secs,
2735 translation == BIOS_ATA_TRANSLATION_LBA ?
2736 ",trans=lba" :
2737 translation == BIOS_ATA_TRANSLATION_NONE ?
2738 ",trans=none" : "");
2739 break;
2740 case QEMU_OPTION_hdb:
2741 case QEMU_OPTION_hdc:
2742 case QEMU_OPTION_hdd:
2743 drive_add(optarg, HD_ALIAS, popt->index - QEMU_OPTION_hda);
2744 break;
2745 case QEMU_OPTION_drive:
2746 drive_add(NULL, "%s", optarg);
2747 break;
2748 case QEMU_OPTION_set:
2749 if (qemu_set_option(optarg) != 0)
2750 exit(1);
2751 break;
2752 case QEMU_OPTION_global:
2753 if (qemu_global_option(optarg) != 0)
2754 exit(1);
2755 break;
2756 case QEMU_OPTION_mtdblock:
2757 drive_add(optarg, MTD_ALIAS);
2758 break;
2759 case QEMU_OPTION_sd:
2760 drive_add(optarg, SD_ALIAS);
2761 break;
2762 case QEMU_OPTION_pflash:
2763 drive_add(optarg, PFLASH_ALIAS);
2764 break;
2765 case QEMU_OPTION_snapshot:
2766 snapshot = 1;
2767 break;
2768 case QEMU_OPTION_hdachs:
2769 {
2770 const char *p;
2771 p = optarg;
2772 cyls = strtol(p, (char **)&p, 0);
2773 if (cyls < 1 || cyls > 16383)
2774 goto chs_fail;
2775 if (*p != ',')
2776 goto chs_fail;
2777 p++;
2778 heads = strtol(p, (char **)&p, 0);
2779 if (heads < 1 || heads > 16)
2780 goto chs_fail;
2781 if (*p != ',')
2782 goto chs_fail;
2783 p++;
2784 secs = strtol(p, (char **)&p, 0);
2785 if (secs < 1 || secs > 63)
2786 goto chs_fail;
2787 if (*p == ',') {
2788 p++;
2789 if (!strcmp(p, "none"))
2790 translation = BIOS_ATA_TRANSLATION_NONE;
2791 else if (!strcmp(p, "lba"))
2792 translation = BIOS_ATA_TRANSLATION_LBA;
2793 else if (!strcmp(p, "auto"))
2794 translation = BIOS_ATA_TRANSLATION_AUTO;
2795 else
2796 goto chs_fail;
2797 } else if (*p != '\0') {
2798 chs_fail:
2799 fprintf(stderr, "qemu: invalid physical CHS format\n");
2800 exit(1);
2801 }
2802 if (hda_opts != NULL) {
2803 char num[16];
2804 snprintf(num, sizeof(num), "%d", cyls);
2805 qemu_opt_set(hda_opts, "cyls", num);
2806 snprintf(num, sizeof(num), "%d", heads);
2807 qemu_opt_set(hda_opts, "heads", num);
2808 snprintf(num, sizeof(num), "%d", secs);
2809 qemu_opt_set(hda_opts, "secs", num);
2810 if (translation == BIOS_ATA_TRANSLATION_LBA)
2811 qemu_opt_set(hda_opts, "trans", "lba");
2812 if (translation == BIOS_ATA_TRANSLATION_NONE)
2813 qemu_opt_set(hda_opts, "trans", "none");
2814 }
2815 }
2816 break;
2817 case QEMU_OPTION_numa:
2818 if (nb_numa_nodes >= MAX_NODES) {
2819 fprintf(stderr, "qemu: too many NUMA nodes\n");
2820 exit(1);
2821 }
2822 numa_add(optarg);
2823 break;
2824 case QEMU_OPTION_nographic:
2825 display_type = DT_NOGRAPHIC;
2826 break;
2827 #ifdef CONFIG_CURSES
2828 case QEMU_OPTION_curses:
2829 display_type = DT_CURSES;
2830 break;
2831 #endif
2832 case QEMU_OPTION_portrait:
2833 graphic_rotate = 1;
2834 break;
2835 case QEMU_OPTION_kernel:
2836 kernel_filename = optarg;
2837 break;
2838 case QEMU_OPTION_append:
2839 kernel_cmdline = optarg;
2840 break;
2841 case QEMU_OPTION_cdrom:
2842 drive_add(optarg, CDROM_ALIAS);
2843 break;
2844 case QEMU_OPTION_boot:
2845 {
2846 static const char * const params[] = {
2847 "order", "once", "menu", NULL
2848 };
2849 char buf[sizeof(boot_devices)];
2850 char *standard_boot_devices;
2851 int legacy = 0;
2852
2853 if (!strchr(optarg, '=')) {
2854 legacy = 1;
2855 pstrcpy(buf, sizeof(buf), optarg);
2856 } else if (check_params(buf, sizeof(buf), params, optarg) < 0) {
2857 fprintf(stderr,
2858 "qemu: unknown boot parameter '%s' in '%s'\n",
2859 buf, optarg);
2860 exit(1);
2861 }
2862
2863 if (legacy ||
2864 get_param_value(buf, sizeof(buf), "order", optarg)) {
2865 validate_bootdevices(buf);
2866 pstrcpy(boot_devices, sizeof(boot_devices), buf);
2867 }
2868 if (!legacy) {
2869 if (get_param_value(buf, sizeof(buf),
2870 "once", optarg)) {
2871 validate_bootdevices(buf);
2872 standard_boot_devices = qemu_strdup(boot_devices);
2873 pstrcpy(boot_devices, sizeof(boot_devices), buf);
2874 qemu_register_reset(restore_boot_devices,
2875 standard_boot_devices);
2876 }
2877 if (get_param_value(buf, sizeof(buf),
2878 "menu", optarg)) {
2879 if (!strcmp(buf, "on")) {
2880 boot_menu = 1;
2881 } else if (!strcmp(buf, "off")) {
2882 boot_menu = 0;
2883 } else {
2884 fprintf(stderr,
2885 "qemu: invalid option value '%s'\n",
2886 buf);
2887 exit(1);
2888 }
2889 }
2890 }
2891 }
2892 break;
2893 case QEMU_OPTION_fda:
2894 case QEMU_OPTION_fdb:
2895 drive_add(optarg, FD_ALIAS, popt->index - QEMU_OPTION_fda);
2896 break;
2897 case QEMU_OPTION_no_fd_bootchk:
2898 fd_bootchk = 0;
2899 break;
2900 case QEMU_OPTION_netdev:
2901 if (net_client_parse(&qemu_netdev_opts, optarg) == -1) {
2902 exit(1);
2903 }
2904 break;
2905 case QEMU_OPTION_net:
2906 if (net_client_parse(&qemu_net_opts, optarg) == -1) {
2907 exit(1);
2908 }
2909 break;
2910 #ifdef CONFIG_SLIRP
2911 case QEMU_OPTION_tftp:
2912 legacy_tftp_prefix = optarg;
2913 break;
2914 case QEMU_OPTION_bootp:
2915 legacy_bootp_filename = optarg;
2916 break;
2917 #ifndef _WIN32
2918 case QEMU_OPTION_smb:
2919 if (net_slirp_smb(optarg) < 0)
2920 exit(1);
2921 break;
2922 #endif
2923 case QEMU_OPTION_redir:
2924 if (net_slirp_redir(optarg) < 0)
2925 exit(1);
2926 break;
2927 #endif
2928 case QEMU_OPTION_bt:
2929 add_device_config(DEV_BT, optarg);
2930 break;
2931 case QEMU_OPTION_audio_help:
2932 if (!(audio_available())) {
2933 printf("Option %s not supported for this target\n", popt->name);
2934 exit(1);
2935 }
2936 AUD_help ();
2937 exit (0);
2938 break;
2939 case QEMU_OPTION_soundhw:
2940 if (!(audio_available())) {
2941 printf("Option %s not supported for this target\n", popt->name);
2942 exit(1);
2943 }
2944 select_soundhw (optarg);
2945 break;
2946 case QEMU_OPTION_h:
2947 help(0);
2948 break;
2949 case QEMU_OPTION_version:
2950 version();
2951 exit(0);
2952 break;
2953 case QEMU_OPTION_m: {
2954 uint64_t value;
2955 char *ptr;
2956
2957 value = strtoul(optarg, &ptr, 10);
2958 switch (*ptr) {
2959 case 0: case 'M': case 'm':
2960 value <<= 20;
2961 break;
2962 case 'G': case 'g':
2963 value <<= 30;
2964 break;
2965 default:
2966 fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
2967 exit(1);
2968 }
2969
2970 /* On 32-bit hosts, QEMU is limited by virtual address space */
2971 if (value > (2047 << 20) && HOST_LONG_BITS == 32) {
2972 fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
2973 exit(1);
2974 }
2975 if (value != (uint64_t)(ram_addr_t)value) {
2976 fprintf(stderr, "qemu: ram size too large\n");
2977 exit(1);
2978 }
2979 ram_size = value;
2980 break;
2981 }
2982 case QEMU_OPTION_mempath:
2983 mem_path = optarg;
2984 break;
2985 #ifdef MAP_POPULATE
2986 case QEMU_OPTION_mem_prealloc:
2987 mem_prealloc = 1;
2988 break;
2989 #endif
2990 case QEMU_OPTION_d:
2991 set_cpu_log(optarg);
2992 break;
2993 case QEMU_OPTION_s:
2994 gdbstub_dev = "tcp::" DEFAULT_GDBSTUB_PORT;
2995 break;
2996 case QEMU_OPTION_gdb:
2997 gdbstub_dev = optarg;
2998 break;
2999 case QEMU_OPTION_L:
3000 data_dir = optarg;
3001 break;
3002 case QEMU_OPTION_bios:
3003 bios_name = optarg;
3004 break;
3005 case QEMU_OPTION_singlestep:
3006 singlestep = 1;
3007 break;
3008 case QEMU_OPTION_S:
3009 autostart = 0;
3010 break;
3011 case QEMU_OPTION_k:
3012 keyboard_layout = optarg;
3013 break;
3014 case QEMU_OPTION_localtime:
3015 rtc_utc = 0;
3016 break;
3017 case QEMU_OPTION_vga:
3018 select_vgahw (optarg);
3019 break;
3020 case QEMU_OPTION_g:
3021 {
3022 const char *p;
3023 int w, h, depth;
3024 p = optarg;
3025 w = strtol(p, (char **)&p, 10);
3026 if (w <= 0) {
3027 graphic_error:
3028 fprintf(stderr, "qemu: invalid resolution or depth\n");
3029 exit(1);
3030 }
3031 if (*p != 'x')
3032 goto graphic_error;
3033 p++;
3034 h = strtol(p, (char **)&p, 10);
3035 if (h <= 0)
3036 goto graphic_error;
3037 if (*p == 'x') {
3038 p++;
3039 depth = strtol(p, (char **)&p, 10);
3040 if (depth != 8 && depth != 15 && depth != 16 &&
3041 depth != 24 && depth != 32)
3042 goto graphic_error;
3043 } else if (*p == '\0') {
3044 depth = graphic_depth;
3045 } else {
3046 goto graphic_error;
3047 }
3048
3049 graphic_width = w;
3050 graphic_height = h;
3051 graphic_depth = depth;
3052 }
3053 break;
3054 case QEMU_OPTION_echr:
3055 {
3056 char *r;
3057 term_escape_char = strtol(optarg, &r, 0);
3058 if (r == optarg)
3059 printf("Bad argument to echr\n");
3060 break;
3061 }
3062 case QEMU_OPTION_monitor:
3063 monitor_parse(optarg, "readline");
3064 default_monitor = 0;
3065 break;
3066 case QEMU_OPTION_qmp:
3067 monitor_parse(optarg, "control");
3068 default_monitor = 0;
3069 break;
3070 case QEMU_OPTION_mon:
3071 opts = qemu_opts_parse(&qemu_mon_opts, optarg, 1);
3072 if (!opts) {
3073 exit(1);
3074 }
3075 default_monitor = 0;
3076 break;
3077 case QEMU_OPTION_chardev:
3078 opts = qemu_opts_parse(&qemu_chardev_opts, optarg, 1);
3079 if (!opts) {
3080 exit(1);
3081 }
3082 break;
3083 case QEMU_OPTION_serial:
3084 add_device_config(DEV_SERIAL, optarg);
3085 default_serial = 0;
3086 if (strncmp(optarg, "mon:", 4) == 0) {
3087 default_monitor = 0;
3088 }
3089 break;
3090 case QEMU_OPTION_watchdog:
3091 if (watchdog) {
3092 fprintf(stderr,
3093 "qemu: only one watchdog option may be given\n");
3094 return 1;
3095 }
3096 watchdog = optarg;
3097 break;
3098 case QEMU_OPTION_watchdog_action:
3099 if (select_watchdog_action(optarg) == -1) {
3100 fprintf(stderr, "Unknown -watchdog-action parameter\n");
3101 exit(1);
3102 }
3103 break;
3104 case QEMU_OPTION_virtiocon:
3105 add_device_config(DEV_VIRTCON, optarg);
3106 default_virtcon = 0;
3107 if (strncmp(optarg, "mon:", 4) == 0) {
3108 default_monitor = 0;
3109 }
3110 break;
3111 case QEMU_OPTION_parallel:
3112 add_device_config(DEV_PARALLEL, optarg);
3113 default_parallel = 0;
3114 if (strncmp(optarg, "mon:", 4) == 0) {
3115 default_monitor = 0;
3116 }
3117 break;
3118 case QEMU_OPTION_debugcon:
3119 add_device_config(DEV_DEBUGCON, optarg);
3120 break;
3121 case QEMU_OPTION_loadvm:
3122 loadvm = optarg;
3123 break;
3124 case QEMU_OPTION_full_screen:
3125 full_screen = 1;
3126 break;
3127 #ifdef CONFIG_SDL
3128 case QEMU_OPTION_no_frame:
3129 no_frame = 1;
3130 break;
3131 case QEMU_OPTION_alt_grab:
3132 alt_grab = 1;
3133 break;
3134 case QEMU_OPTION_ctrl_grab:
3135 ctrl_grab = 1;
3136 break;
3137 case QEMU_OPTION_no_quit:
3138 no_quit = 1;
3139 break;
3140 case QEMU_OPTION_sdl:
3141 display_type = DT_SDL;
3142 break;
3143 #endif
3144 case QEMU_OPTION_pidfile:
3145 pid_file = optarg;
3146 break;
3147 case QEMU_OPTION_win2k_hack:
3148 win2k_install_hack = 1;
3149 break;
3150 case QEMU_OPTION_rtc_td_hack:
3151 rtc_td_hack = 1;
3152 break;
3153 case QEMU_OPTION_acpitable:
3154 do_acpitable_option(optarg);
3155 break;
3156 case QEMU_OPTION_smbios:
3157 do_smbios_option(optarg);
3158 break;
3159 case QEMU_OPTION_enable_kvm:
3160 if (!(kvm_available())) {
3161 printf("Option %s not supported for this target\n", popt->name);
3162 exit(1);
3163 }
3164 kvm_allowed = 1;
3165 break;
3166 case QEMU_OPTION_usb:
3167 usb_enabled = 1;
3168 break;
3169 case QEMU_OPTION_usbdevice:
3170 usb_enabled = 1;
3171 add_device_config(DEV_USB, optarg);
3172 break;
3173 case QEMU_OPTION_device:
3174 if (!qemu_opts_parse(&qemu_device_opts, optarg, 1)) {
3175 exit(1);
3176 }
3177 break;
3178 case QEMU_OPTION_smp:
3179 smp_parse(optarg);
3180 if (smp_cpus < 1) {
3181 fprintf(stderr, "Invalid number of CPUs\n");
3182 exit(1);
3183 }
3184 if (max_cpus < smp_cpus) {
3185 fprintf(stderr, "maxcpus must be equal to or greater than "
3186 "smp\n");
3187 exit(1);
3188 }
3189 if (max_cpus > 255) {
3190 fprintf(stderr, "Unsupported number of maxcpus\n");
3191 exit(1);
3192 }
3193 break;
3194 case QEMU_OPTION_vnc:
3195 display_type = DT_VNC;
3196 vnc_display = optarg;
3197 break;
3198 case QEMU_OPTION_no_acpi:
3199 acpi_enabled = 0;
3200 break;
3201 case QEMU_OPTION_no_hpet:
3202 no_hpet = 1;
3203 break;
3204 case QEMU_OPTION_balloon:
3205 if (balloon_parse(optarg) < 0) {
3206 fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
3207 exit(1);
3208 }
3209 break;
3210 case QEMU_OPTION_no_reboot:
3211 no_reboot = 1;
3212 break;
3213 case QEMU_OPTION_no_shutdown:
3214 no_shutdown = 1;
3215 break;
3216 case QEMU_OPTION_show_cursor:
3217 cursor_hide = 0;
3218 break;
3219 case QEMU_OPTION_uuid:
3220 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
3221 fprintf(stderr, "Fail to parse UUID string."
3222 " Wrong format.\n");
3223 exit(1);
3224 }
3225 break;
3226 #ifndef _WIN32
3227 case QEMU_OPTION_daemonize:
3228 daemonize = 1;
3229 break;
3230 #endif
3231 case QEMU_OPTION_option_rom:
3232 if (nb_option_roms >= MAX_OPTION_ROMS) {
3233 fprintf(stderr, "Too many option ROMs\n");
3234 exit(1);
3235 }
3236 option_rom[nb_option_roms] = optarg;
3237 nb_option_roms++;
3238 break;
3239 case QEMU_OPTION_semihosting:
3240 semihosting_enabled = 1;
3241 break;
3242 case QEMU_OPTION_name:
3243 qemu_name = qemu_strdup(optarg);
3244 {
3245 char *p = strchr(qemu_name, ',');
3246 if (p != NULL) {
3247 *p++ = 0;
3248 if (strncmp(p, "process=", 8)) {
3249 fprintf(stderr, "Unknown subargument %s to -name", p);
3250 exit(1);
3251 }
3252 p += 8;
3253 set_proc_name(p);
3254 }
3255 }
3256 break;
3257 case QEMU_OPTION_prom_env:
3258 if (nb_prom_envs >= MAX_PROM_ENVS) {
3259 fprintf(stderr, "Too many prom variables\n");
3260 exit(1);
3261 }
3262 prom_envs[nb_prom_envs] = optarg;
3263 nb_prom_envs++;
3264 break;
3265 case QEMU_OPTION_old_param:
3266 old_param = 1;
3267 break;
3268 case QEMU_OPTION_clock:
3269 configure_alarms(optarg);
3270 break;
3271 case QEMU_OPTION_startdate:
3272 configure_rtc_date_offset(optarg, 1);
3273 break;
3274 case QEMU_OPTION_rtc:
3275 opts = qemu_opts_parse(&qemu_rtc_opts, optarg, 0);
3276 if (!opts) {
3277 exit(1);
3278 }
3279 configure_rtc(opts);
3280 break;
3281 case QEMU_OPTION_tb_size:
3282 tb_size = strtol(optarg, NULL, 0);
3283 if (tb_size < 0)
3284 tb_size = 0;
3285 break;
3286 case QEMU_OPTION_icount:
3287 icount_option = optarg;
3288 break;
3289 case QEMU_OPTION_incoming:
3290 incoming = optarg;
3291 break;
3292 case QEMU_OPTION_nodefaults:
3293 default_serial = 0;
3294 default_parallel = 0;
3295 default_virtcon = 0;
3296 default_monitor = 0;
3297 default_vga = 0;
3298 default_net = 0;
3299 default_floppy = 0;
3300 default_cdrom = 0;
3301 default_sdcard = 0;
3302 break;
3303 #ifndef _WIN32
3304 case QEMU_OPTION_chroot:
3305 chroot_dir = optarg;
3306 break;
3307 case QEMU_OPTION_runas:
3308 run_as = optarg;
3309 break;
3310 #endif
3311 case QEMU_OPTION_xen_domid:
3312 if (!(xen_available())) {
3313 printf("Option %s not supported for this target\n", popt->name);
3314 exit(1);
3315 }
3316 xen_domid = atoi(optarg);
3317 break;
3318 case QEMU_OPTION_xen_create:
3319 if (!(xen_available())) {
3320 printf("Option %s not supported for this target\n", popt->name);
3321 exit(1);
3322 }
3323 xen_mode = XEN_CREATE;
3324 break;
3325 case QEMU_OPTION_xen_attach:
3326 if (!(xen_available())) {
3327 printf("Option %s not supported for this target\n", popt->name);
3328 exit(1);
3329 }
3330 xen_mode = XEN_ATTACH;
3331 break;
3332 case QEMU_OPTION_readconfig:
3333 {
3334 FILE *fp;
3335 fp = fopen(optarg, "r");
3336 if (fp == NULL) {
3337 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
3338 exit(1);
3339 }
3340 if (qemu_config_parse(fp, optarg) != 0) {
3341 exit(1);
3342 }
3343 fclose(fp);
3344 break;
3345 }
3346 case QEMU_OPTION_writeconfig:
3347 {
3348 FILE *fp;
3349 if (strcmp(optarg, "-") == 0) {
3350 fp = stdout;
3351 } else {
3352 fp = fopen(optarg, "w");
3353 if (fp == NULL) {
3354 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
3355 exit(1);
3356 }
3357 }
3358 qemu_config_write(fp);
3359 fclose(fp);
3360 break;
3361 }
3362 }
3363 }
3364 }
3365 loc_set_none();
3366
3367 /* If no data_dir is specified then try to find it relative to the
3368 executable path. */
3369 if (!data_dir) {
3370 data_dir = find_datadir(argv[0]);
3371 }
3372 /* If all else fails use the install patch specified when building. */
3373 if (!data_dir) {
3374 data_dir = CONFIG_QEMU_SHAREDIR;
3375 }
3376
3377 /*
3378 * Default to max_cpus = smp_cpus, in case the user doesn't
3379 * specify a max_cpus value.
3380 */
3381 if (!max_cpus)
3382 max_cpus = smp_cpus;
3383
3384 machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
3385 if (smp_cpus > machine->max_cpus) {
3386 fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
3387 "supported by machine `%s' (%d)\n", smp_cpus, machine->name,
3388 machine->max_cpus);
3389 exit(1);
3390 }
3391
3392 qemu_opts_foreach(&qemu_device_opts, default_driver_check, NULL, 0);
3393 qemu_opts_foreach(&qemu_global_opts, default_driver_check, NULL, 0);
3394
3395 if (machine->no_serial) {
3396 default_serial = 0;
3397 }
3398 if (machine->no_parallel) {
3399 default_parallel = 0;
3400 }
3401 if (!machine->use_virtcon) {
3402 default_virtcon = 0;
3403 }
3404 if (machine->no_vga) {
3405 default_vga = 0;
3406 }
3407 if (machine->no_floppy) {
3408 default_floppy = 0;
3409 }
3410 if (machine->no_cdrom) {
3411 default_cdrom = 0;
3412 }
3413 if (machine->no_sdcard) {
3414 default_sdcard = 0;
3415 }
3416
3417 if (display_type == DT_NOGRAPHIC) {
3418 if (default_parallel)
3419 add_device_config(DEV_PARALLEL, "null");
3420 if (default_serial && default_monitor) {
3421 add_device_config(DEV_SERIAL, "mon:stdio");
3422 } else if (default_virtcon && default_monitor) {
3423 add_device_config(DEV_VIRTCON, "mon:stdio");
3424 } else {
3425 if (default_serial)
3426 add_device_config(DEV_SERIAL, "stdio");
3427 if (default_virtcon)
3428 add_device_config(DEV_VIRTCON, "stdio");
3429 if (default_monitor)
3430 monitor_parse("stdio", "readline");
3431 }
3432 } else {
3433 if (default_serial)
3434 add_device_config(DEV_SERIAL, "vc:80Cx24C");
3435 if (default_parallel)
3436 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
3437 if (default_monitor)
3438 monitor_parse("vc:80Cx24C", "readline");
3439 if (default_virtcon)
3440 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
3441 }
3442 if (default_vga)
3443 vga_interface_type = VGA_CIRRUS;
3444
3445 if (qemu_opts_foreach(&qemu_chardev_opts, chardev_init_func, NULL, 1) != 0)
3446 exit(1);
3447
3448 #ifndef _WIN32
3449 if (daemonize) {
3450 pid_t pid;
3451
3452 if (pipe(fds) == -1)
3453 exit(1);
3454
3455 pid = fork();
3456 if (pid > 0) {
3457 uint8_t status;
3458 ssize_t len;
3459
3460 close(fds[1]);
3461
3462 again:
3463 len = read(fds[0], &status, 1);
3464 if (len == -1 && (errno == EINTR))
3465 goto again;
3466
3467 if (len != 1)
3468 exit(1);
3469 else if (status == 1) {
3470 fprintf(stderr, "Could not acquire pidfile: %s\n", strerror(errno));
3471 exit(1);
3472 } else
3473 exit(0);
3474 } else if (pid < 0)
3475 exit(1);
3476
3477 close(fds[0]);
3478 qemu_set_cloexec(fds[1]);
3479
3480 setsid();
3481
3482 pid = fork();
3483 if (pid > 0)
3484 exit(0);
3485 else if (pid < 0)
3486 exit(1);
3487
3488 umask(027);
3489
3490 signal(SIGTSTP, SIG_IGN);
3491 signal(SIGTTOU, SIG_IGN);
3492 signal(SIGTTIN, SIG_IGN);
3493 }
3494 #endif
3495
3496 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
3497 #ifndef _WIN32
3498 if (daemonize) {
3499 uint8_t status = 1;
3500 if (write(fds[1], &status, 1) != 1) {
3501 perror("daemonize. Writing to pipe\n");
3502 }
3503 } else
3504 #endif
3505 fprintf(stderr, "Could not acquire pid file: %s\n", strerror(errno));
3506 exit(1);
3507 }
3508
3509 if (kvm_enabled()) {
3510 int ret;
3511
3512 ret = kvm_init(smp_cpus);
3513 if (ret < 0) {
3514 fprintf(stderr, "failed to initialize KVM\n");
3515 exit(1);
3516 }
3517 }
3518
3519 if (qemu_init_main_loop()) {
3520 fprintf(stderr, "qemu_init_main_loop failed\n");
3521 exit(1);
3522 }
3523 linux_boot = (kernel_filename != NULL);
3524
3525 if (!linux_boot && *kernel_cmdline != '\0') {
3526 fprintf(stderr, "-append only allowed with -kernel option\n");
3527 exit(1);
3528 }
3529
3530 if (!linux_boot && initrd_filename != NULL) {
3531 fprintf(stderr, "-initrd only allowed with -kernel option\n");
3532 exit(1);
3533 }
3534
3535 #ifndef _WIN32
3536 /* Win32 doesn't support line-buffering and requires size >= 2 */
3537 setvbuf(stdout, NULL, _IOLBF, 0);
3538 #endif
3539
3540 if (init_timer_alarm() < 0) {
3541 fprintf(stderr, "could not initialize alarm timer\n");
3542 exit(1);
3543 }
3544 configure_icount(icount_option);
3545
3546 socket_init();
3547
3548 if (net_init_clients() < 0) {
3549 exit(1);
3550 }
3551
3552 /* init the bluetooth world */
3553 if (foreach_device_config(DEV_BT, bt_parse))
3554 exit(1);
3555
3556 /* init the memory */
3557 if (ram_size == 0)
3558 ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
3559
3560 /* init the dynamic translator */
3561 cpu_exec_init_all(tb_size * 1024 * 1024);
3562
3563 bdrv_init_with_whitelist();
3564
3565 blk_mig_init();
3566
3567 if (default_cdrom) {
3568 /* we always create the cdrom drive, even if no disk is there */
3569 drive_add(NULL, CDROM_ALIAS);
3570 }
3571
3572 if (default_floppy) {
3573 /* we always create at least one floppy */
3574 drive_add(NULL, FD_ALIAS, 0);
3575 }
3576
3577 if (default_sdcard) {
3578 /* we always create one sd slot, even if no card is in it */
3579 drive_add(NULL, SD_ALIAS);
3580 }
3581
3582 /* open the virtual block devices */
3583 if (snapshot)
3584 qemu_opts_foreach(&qemu_drive_opts, drive_enable_snapshot, NULL, 0);
3585 if (qemu_opts_foreach(&qemu_drive_opts, drive_init_func, machine, 1) != 0)
3586 exit(1);
3587
3588 register_savevm_live("ram", 0, 3, NULL, ram_save_live, NULL,
3589 ram_load, NULL);
3590
3591 if (nb_numa_nodes > 0) {
3592 int i;
3593
3594 if (nb_numa_nodes > smp_cpus) {
3595 nb_numa_nodes = smp_cpus;
3596 }
3597
3598 /* If no memory size if given for any node, assume the default case
3599 * and distribute the available memory equally across all nodes
3600 */
3601 for (i = 0; i < nb_numa_nodes; i++) {
3602 if (node_mem[i] != 0)
3603 break;
3604 }
3605 if (i == nb_numa_nodes) {
3606 uint64_t usedmem = 0;
3607
3608 /* On Linux, the each node's border has to be 8MB aligned,
3609 * the final node gets the rest.
3610 */
3611 for (i = 0; i < nb_numa_nodes - 1; i++) {
3612 node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1);
3613 usedmem += node_mem[i];
3614 }
3615 node_mem[i] = ram_size - usedmem;
3616 }
3617
3618 for (i = 0; i < nb_numa_nodes; i++) {
3619 if (node_cpumask[i] != 0)
3620 break;
3621 }
3622 /* assigning the VCPUs round-robin is easier to implement, guest OSes
3623 * must cope with this anyway, because there are BIOSes out there in
3624 * real machines which also use this scheme.
3625 */
3626 if (i == nb_numa_nodes) {
3627 for (i = 0; i < smp_cpus; i++) {
3628 node_cpumask[i % nb_numa_nodes] |= 1 << i;
3629 }
3630 }
3631 }
3632
3633 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
3634 exit(1);
3635 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
3636 exit(1);
3637 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
3638 exit(1);
3639 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
3640 exit(1);
3641
3642 module_call_init(MODULE_INIT_DEVICE);
3643
3644 if (qemu_opts_foreach(&qemu_device_opts, device_help_func, NULL, 0) != 0)
3645 exit(0);
3646
3647 if (watchdog) {
3648 i = select_watchdog(watchdog);
3649 if (i > 0)
3650 exit (i == 1 ? 1 : 0);
3651 }
3652
3653 if (machine->compat_props) {
3654 qdev_prop_register_global_list(machine->compat_props);
3655 }
3656 qemu_add_globals();
3657
3658 machine->init(ram_size, boot_devices,
3659 kernel_filename, kernel_cmdline, initrd_filename, cpu_model);
3660
3661 cpu_synchronize_all_post_init();
3662
3663 #ifndef _WIN32
3664 /* must be after terminal init, SDL library changes signal handlers */
3665 sighandler_setup();
3666 #endif
3667
3668 set_numa_modes();
3669
3670 current_machine = machine;
3671
3672 /* init USB devices */
3673 if (usb_enabled) {
3674 if (foreach_device_config(DEV_USB, usb_parse) < 0)
3675 exit(1);
3676 }
3677
3678 /* init generic devices */
3679 if (qemu_opts_foreach(&qemu_device_opts, device_init_func, NULL, 1) != 0)
3680 exit(1);
3681
3682 net_check_clients();
3683
3684 /* just use the first displaystate for the moment */
3685 ds = get_displaystate();
3686
3687 if (display_type == DT_DEFAULT) {
3688 #if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
3689 display_type = DT_SDL;
3690 #else
3691 display_type = DT_VNC;
3692 vnc_display = "localhost:0,to=99";
3693 show_vnc_port = 1;
3694 #endif
3695 }
3696
3697
3698 switch (display_type) {
3699 case DT_NOGRAPHIC:
3700 break;
3701 #if defined(CONFIG_CURSES)
3702 case DT_CURSES:
3703 curses_display_init(ds, full_screen);
3704 break;
3705 #endif
3706 #if defined(CONFIG_SDL)
3707 case DT_SDL:
3708 sdl_display_init(ds, full_screen, no_frame);
3709 break;
3710 #elif defined(CONFIG_COCOA)
3711 case DT_SDL:
3712 cocoa_display_init(ds, full_screen);
3713 break;
3714 #endif
3715 case DT_VNC:
3716 vnc_display_init(ds);
3717 if (vnc_display_open(ds, vnc_display) < 0)
3718 exit(1);
3719
3720 if (show_vnc_port) {
3721 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
3722 }
3723 break;
3724 default:
3725 break;
3726 }
3727 dpy_resize(ds);
3728
3729 dcl = ds->listeners;
3730 while (dcl != NULL) {
3731 if (dcl->dpy_refresh != NULL) {
3732 ds->gui_timer = qemu_new_timer(rt_clock, gui_update, ds);
3733 qemu_mod_timer(ds->gui_timer, qemu_get_clock(rt_clock));
3734 }
3735 dcl = dcl->next;
3736 }
3737
3738 if (display_type == DT_NOGRAPHIC || display_type == DT_VNC) {
3739 nographic_timer = qemu_new_timer(rt_clock, nographic_update, NULL);
3740 qemu_mod_timer(nographic_timer, qemu_get_clock(rt_clock));
3741 }
3742
3743 text_consoles_set_display(ds);
3744
3745 if (qemu_opts_foreach(&qemu_mon_opts, mon_init_func, NULL, 1) != 0)
3746 exit(1);
3747
3748 if (gdbstub_dev && gdbserver_start(gdbstub_dev) < 0) {
3749 fprintf(stderr, "qemu: could not open gdbserver on device '%s'\n",
3750 gdbstub_dev);
3751 exit(1);
3752 }
3753
3754 qdev_machine_creation_done();
3755
3756 if (rom_load_all() != 0) {
3757 fprintf(stderr, "rom loading failed\n");
3758 exit(1);
3759 }
3760
3761 qemu_system_reset();
3762 if (loadvm) {
3763 if (load_vmstate(loadvm) < 0) {
3764 autostart = 0;
3765 }
3766 }
3767
3768 if (incoming) {
3769 qemu_start_incoming_migration(incoming);
3770 } else if (autostart) {
3771 vm_start();
3772 }
3773
3774 #ifndef _WIN32
3775 if (daemonize) {
3776 uint8_t status = 0;
3777 ssize_t len;
3778
3779 again1:
3780 len = write(fds[1], &status, 1);
3781 if (len == -1 && (errno == EINTR))
3782 goto again1;
3783
3784 if (len != 1)
3785 exit(1);
3786
3787 if (chdir("/")) {
3788 perror("not able to chdir to /");
3789 exit(1);
3790 }
3791 TFR(fd = qemu_open("/dev/null", O_RDWR));
3792 if (fd == -1)
3793 exit(1);
3794 }
3795
3796 if (run_as) {
3797 pwd = getpwnam(run_as);
3798 if (!pwd) {
3799 fprintf(stderr, "User \"%s\" doesn't exist\n", run_as);
3800 exit(1);
3801 }
3802 }
3803
3804 if (chroot_dir) {
3805 if (chroot(chroot_dir) < 0) {
3806 fprintf(stderr, "chroot failed\n");
3807 exit(1);
3808 }
3809 if (chdir("/")) {
3810 perror("not able to chdir to /");
3811 exit(1);
3812 }
3813 }
3814
3815 if (run_as) {
3816 if (setgid(pwd->pw_gid) < 0) {
3817 fprintf(stderr, "Failed to setgid(%d)\n", pwd->pw_gid);
3818 exit(1);
3819 }
3820 if (setuid(pwd->pw_uid) < 0) {
3821 fprintf(stderr, "Failed to setuid(%d)\n", pwd->pw_uid);
3822 exit(1);
3823 }
3824 if (setuid(0) != -1) {
3825 fprintf(stderr, "Dropping privileges failed\n");
3826 exit(1);
3827 }
3828 }
3829
3830 if (daemonize) {
3831 dup2(fd, 0);
3832 dup2(fd, 1);
3833 dup2(fd, 2);
3834
3835 close(fd);
3836 }
3837 #endif
3838
3839 main_loop();
3840 quit_timers();
3841 net_cleanup();
3842
3843 return 0;
3844 }
Anthony Liguori's QEMU queue