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virtio-9p: Add P9_TCREATE support
[qemu/aliguori-queue.git] / vl.c
blob37f46b6a5be6187bfd2c0b3acfa555a187f7a735
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 #ifdef CONFIG_LINUX
153 #include "fsdev/qemu-fsdev.h"
154 #endif
155
156 #include "disas.h"
157
158 #include "qemu_socket.h"
159
160 #include "slirp/libslirp.h"
161
162 #include "qemu-queue.h"
163 #include "cpus.h"
164 #include "arch_init.h"
165
166 //#define DEBUG_NET
167 //#define DEBUG_SLIRP
168
169 #define DEFAULT_RAM_SIZE 128
170
171 #define MAX_VIRTIO_CONSOLES 1
172
173 static const char *data_dir;
174 const char *bios_name = NULL;
175 /* Note: drives_table[MAX_DRIVES] is a dummy block driver if none available
176 to store the VM snapshots */
177 struct drivelist drives = QTAILQ_HEAD_INITIALIZER(drives);
178 struct driveoptlist driveopts = QTAILQ_HEAD_INITIALIZER(driveopts);
179 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
180 DisplayType display_type = DT_DEFAULT;
181 const char* keyboard_layout = NULL;
182 ram_addr_t ram_size;
183 const char *mem_path = NULL;
184 #ifdef MAP_POPULATE
185 int mem_prealloc = 0; /* force preallocation of physical target memory */
186 #endif
187 int nb_nics;
188 NICInfo nd_table[MAX_NICS];
189 int vm_running;
190 int autostart;
191 static int rtc_utc = 1;
192 static int rtc_date_offset = -1; /* -1 means no change */
193 QEMUClock *rtc_clock;
194 int vga_interface_type = VGA_NONE;
195 static int full_screen = 0;
196 #ifdef CONFIG_SDL
197 static int no_frame = 0;
198 #endif
199 int no_quit = 0;
200 CharDriverState *serial_hds[MAX_SERIAL_PORTS];
201 CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
202 CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES];
203 int win2k_install_hack = 0;
204 int rtc_td_hack = 0;
205 int usb_enabled = 0;
206 int singlestep = 0;
207 int smp_cpus = 1;
208 int max_cpus = 0;
209 int smp_cores = 1;
210 int smp_threads = 1;
211 const char *vnc_display;
212 int acpi_enabled = 1;
213 int no_hpet = 0;
214 int fd_bootchk = 1;
215 int no_reboot = 0;
216 int no_shutdown = 0;
217 int cursor_hide = 1;
218 int graphic_rotate = 0;
219 uint8_t irq0override = 1;
220 #ifndef _WIN32
221 int daemonize = 0;
222 #endif
223 const char *watchdog;
224 const char *option_rom[MAX_OPTION_ROMS];
225 int nb_option_roms;
226 int semihosting_enabled = 0;
227 int old_param = 0;
228 const char *qemu_name;
229 int alt_grab = 0;
230 int ctrl_grab = 0;
231 unsigned int nb_prom_envs = 0;
232 const char *prom_envs[MAX_PROM_ENVS];
233 int boot_menu;
234
235 int nb_numa_nodes;
236 uint64_t node_mem[MAX_NODES];
237 uint64_t node_cpumask[MAX_NODES];
238
239 static QEMUTimer *nographic_timer;
240
241 uint8_t qemu_uuid[16];
242
243 static QEMUBootSetHandler *boot_set_handler;
244 static void *boot_set_opaque;
245
246 int kvm_allowed = 0;
247 uint32_t xen_domid;
248 enum xen_mode xen_mode = XEN_EMULATE;
249
250 static int default_serial = 1;
251 static int default_parallel = 1;
252 static int default_virtcon = 1;
253 static int default_monitor = 1;
254 static int default_vga = 1;
255 static int default_floppy = 1;
256 static int default_cdrom = 1;
257 static int default_sdcard = 1;
258
259 static struct {
260 const char *driver;
261 int *flag;
262 } default_list[] = {
263 { .driver = "isa-serial", .flag = &default_serial },
264 { .driver = "isa-parallel", .flag = &default_parallel },
265 { .driver = "isa-fdc", .flag = &default_floppy },
266 { .driver = "ide-drive", .flag = &default_cdrom },
267 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
268 { .driver = "virtio-serial-s390", .flag = &default_virtcon },
269 { .driver = "virtio-serial", .flag = &default_virtcon },
270 { .driver = "VGA", .flag = &default_vga },
271 { .driver = "cirrus-vga", .flag = &default_vga },
272 { .driver = "vmware-svga", .flag = &default_vga },
273 };
274
275 static int default_driver_check(QemuOpts *opts, void *opaque)
276 {
277 const char *driver = qemu_opt_get(opts, "driver");
278 int i;
279
280 if (!driver)
281 return 0;
282 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
283 if (strcmp(default_list[i].driver, driver) != 0)
284 continue;
285 *(default_list[i].flag) = 0;
286 }
287 return 0;
288 }
289
290 /***********************************************************/
291
292 static void set_proc_name(const char *s)
293 {
294 #if defined(__linux__) && defined(PR_SET_NAME)
295 char name[16];
296 if (!s)
297 return;
298 name[sizeof(name) - 1] = 0;
299 strncpy(name, s, sizeof(name));
300 /* Could rewrite argv[0] too, but that's a bit more complicated.
301 This simple way is enough for `top'. */
302 prctl(PR_SET_NAME, name);
303 #endif
304 }
305
306 /***********************************************************/
307 /* real time host monotonic timer */
308
309 /* compute with 96 bit intermediate result: (a*b)/c */
310 uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
311 {
312 union {
313 uint64_t ll;
314 struct {
315 #ifdef HOST_WORDS_BIGENDIAN
316 uint32_t high, low;
317 #else
318 uint32_t low, high;
319 #endif
320 } l;
321 } u, res;
322 uint64_t rl, rh;
323
324 u.ll = a;
325 rl = (uint64_t)u.l.low * (uint64_t)b;
326 rh = (uint64_t)u.l.high * (uint64_t)b;
327 rh += (rl >> 32);
328 res.l.high = rh / c;
329 res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
330 return res.ll;
331 }
332
333 /***********************************************************/
334 /* host time/date access */
335 void qemu_get_timedate(struct tm *tm, int offset)
336 {
337 time_t ti;
338 struct tm *ret;
339
340 time(&ti);
341 ti += offset;
342 if (rtc_date_offset == -1) {
343 if (rtc_utc)
344 ret = gmtime(&ti);
345 else
346 ret = localtime(&ti);
347 } else {
348 ti -= rtc_date_offset;
349 ret = gmtime(&ti);
350 }
351
352 memcpy(tm, ret, sizeof(struct tm));
353 }
354
355 int qemu_timedate_diff(struct tm *tm)
356 {
357 time_t seconds;
358
359 if (rtc_date_offset == -1)
360 if (rtc_utc)
361 seconds = mktimegm(tm);
362 else
363 seconds = mktime(tm);
364 else
365 seconds = mktimegm(tm) + rtc_date_offset;
366
367 return seconds - time(NULL);
368 }
369
370 void rtc_change_mon_event(struct tm *tm)
371 {
372 QObject *data;
373
374 data = qobject_from_jsonf("{ 'offset': %d }", qemu_timedate_diff(tm));
375 monitor_protocol_event(QEVENT_RTC_CHANGE, data);
376 qobject_decref(data);
377 }
378
379 static void configure_rtc_date_offset(const char *startdate, int legacy)
380 {
381 time_t rtc_start_date;
382 struct tm tm;
383
384 if (!strcmp(startdate, "now") && legacy) {
385 rtc_date_offset = -1;
386 } else {
387 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
388 &tm.tm_year,
389 &tm.tm_mon,
390 &tm.tm_mday,
391 &tm.tm_hour,
392 &tm.tm_min,
393 &tm.tm_sec) == 6) {
394 /* OK */
395 } else if (sscanf(startdate, "%d-%d-%d",
396 &tm.tm_year,
397 &tm.tm_mon,
398 &tm.tm_mday) == 3) {
399 tm.tm_hour = 0;
400 tm.tm_min = 0;
401 tm.tm_sec = 0;
402 } else {
403 goto date_fail;
404 }
405 tm.tm_year -= 1900;
406 tm.tm_mon--;
407 rtc_start_date = mktimegm(&tm);
408 if (rtc_start_date == -1) {
409 date_fail:
410 fprintf(stderr, "Invalid date format. Valid formats are:\n"
411 "'2006-06-17T16:01:21' or '2006-06-17'\n");
412 exit(1);
413 }
414 rtc_date_offset = time(NULL) - rtc_start_date;
415 }
416 }
417
418 static void configure_rtc(QemuOpts *opts)
419 {
420 const char *value;
421
422 value = qemu_opt_get(opts, "base");
423 if (value) {
424 if (!strcmp(value, "utc")) {
425 rtc_utc = 1;
426 } else if (!strcmp(value, "localtime")) {
427 rtc_utc = 0;
428 } else {
429 configure_rtc_date_offset(value, 0);
430 }
431 }
432 value = qemu_opt_get(opts, "clock");
433 if (value) {
434 if (!strcmp(value, "host")) {
435 rtc_clock = host_clock;
436 } else if (!strcmp(value, "vm")) {
437 rtc_clock = vm_clock;
438 } else {
439 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
440 exit(1);
441 }
442 }
443 value = qemu_opt_get(opts, "driftfix");
444 if (value) {
445 if (!strcmp(value, "slew")) {
446 rtc_td_hack = 1;
447 } else if (!strcmp(value, "none")) {
448 rtc_td_hack = 0;
449 } else {
450 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
451 exit(1);
452 }
453 }
454 }
455
456 /***********************************************************/
457 /* Bluetooth support */
458 static int nb_hcis;
459 static int cur_hci;
460 static struct HCIInfo *hci_table[MAX_NICS];
461
462 static struct bt_vlan_s {
463 struct bt_scatternet_s net;
464 int id;
465 struct bt_vlan_s *next;
466 } *first_bt_vlan;
467
468 /* find or alloc a new bluetooth "VLAN" */
469 static struct bt_scatternet_s *qemu_find_bt_vlan(int id)
470 {
471 struct bt_vlan_s **pvlan, *vlan;
472 for (vlan = first_bt_vlan; vlan != NULL; vlan = vlan->next) {
473 if (vlan->id == id)
474 return &vlan->net;
475 }
476 vlan = qemu_mallocz(sizeof(struct bt_vlan_s));
477 vlan->id = id;
478 pvlan = &first_bt_vlan;
479 while (*pvlan != NULL)
480 pvlan = &(*pvlan)->next;
481 *pvlan = vlan;
482 return &vlan->net;
483 }
484
485 static void null_hci_send(struct HCIInfo *hci, const uint8_t *data, int len)
486 {
487 }
488
489 static int null_hci_addr_set(struct HCIInfo *hci, const uint8_t *bd_addr)
490 {
491 return -ENOTSUP;
492 }
493
494 static struct HCIInfo null_hci = {
495 .cmd_send = null_hci_send,
496 .sco_send = null_hci_send,
497 .acl_send = null_hci_send,
498 .bdaddr_set = null_hci_addr_set,
499 };
500
501 struct HCIInfo *qemu_next_hci(void)
502 {
503 if (cur_hci == nb_hcis)
504 return &null_hci;
505
506 return hci_table[cur_hci++];
507 }
508
509 static struct HCIInfo *hci_init(const char *str)
510 {
511 char *endp;
512 struct bt_scatternet_s *vlan = 0;
513
514 if (!strcmp(str, "null"))
515 /* null */
516 return &null_hci;
517 else if (!strncmp(str, "host", 4) && (str[4] == '\0' || str[4] == ':'))
518 /* host[:hciN] */
519 return bt_host_hci(str[4] ? str + 5 : "hci0");
520 else if (!strncmp(str, "hci", 3)) {
521 /* hci[,vlan=n] */
522 if (str[3]) {
523 if (!strncmp(str + 3, ",vlan=", 6)) {
524 vlan = qemu_find_bt_vlan(strtol(str + 9, &endp, 0));
525 if (*endp)
526 vlan = 0;
527 }
528 } else
529 vlan = qemu_find_bt_vlan(0);
530 if (vlan)
531 return bt_new_hci(vlan);
532 }
533
534 fprintf(stderr, "qemu: Unknown bluetooth HCI `%s'.\n", str);
535
536 return 0;
537 }
538
539 static int bt_hci_parse(const char *str)
540 {
541 struct HCIInfo *hci;
542 bdaddr_t bdaddr;
543
544 if (nb_hcis >= MAX_NICS) {
545 fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
546 return -1;
547 }
548
549 hci = hci_init(str);
550 if (!hci)
551 return -1;
552
553 bdaddr.b[0] = 0x52;
554 bdaddr.b[1] = 0x54;
555 bdaddr.b[2] = 0x00;
556 bdaddr.b[3] = 0x12;
557 bdaddr.b[4] = 0x34;
558 bdaddr.b[5] = 0x56 + nb_hcis;
559 hci->bdaddr_set(hci, bdaddr.b);
560
561 hci_table[nb_hcis++] = hci;
562
563 return 0;
564 }
565
566 static void bt_vhci_add(int vlan_id)
567 {
568 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
569
570 if (!vlan->slave)
571 fprintf(stderr, "qemu: warning: adding a VHCI to "
572 "an empty scatternet %i\n", vlan_id);
573
574 bt_vhci_init(bt_new_hci(vlan));
575 }
576
577 static struct bt_device_s *bt_device_add(const char *opt)
578 {
579 struct bt_scatternet_s *vlan;
580 int vlan_id = 0;
581 char *endp = strstr(opt, ",vlan=");
582 int len = (endp ? endp - opt : strlen(opt)) + 1;
583 char devname[10];
584
585 pstrcpy(devname, MIN(sizeof(devname), len), opt);
586
587 if (endp) {
588 vlan_id = strtol(endp + 6, &endp, 0);
589 if (*endp) {
590 fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
591 return 0;
592 }
593 }
594
595 vlan = qemu_find_bt_vlan(vlan_id);
596
597 if (!vlan->slave)
598 fprintf(stderr, "qemu: warning: adding a slave device to "
599 "an empty scatternet %i\n", vlan_id);
600
601 if (!strcmp(devname, "keyboard"))
602 return bt_keyboard_init(vlan);
603
604 fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
605 return 0;
606 }
607
608 static int bt_parse(const char *opt)
609 {
610 const char *endp, *p;
611 int vlan;
612
613 if (strstart(opt, "hci", &endp)) {
614 if (!*endp || *endp == ',') {
615 if (*endp)
616 if (!strstart(endp, ",vlan=", 0))
617 opt = endp + 1;
618
619 return bt_hci_parse(opt);
620 }
621 } else if (strstart(opt, "vhci", &endp)) {
622 if (!*endp || *endp == ',') {
623 if (*endp) {
624 if (strstart(endp, ",vlan=", &p)) {
625 vlan = strtol(p, (char **) &endp, 0);
626 if (*endp) {
627 fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
628 return 1;
629 }
630 } else {
631 fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1);
632 return 1;
633 }
634 } else
635 vlan = 0;
636
637 bt_vhci_add(vlan);
638 return 0;
639 }
640 } else if (strstart(opt, "device:", &endp))
641 return !bt_device_add(endp);
642
643 fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
644 return 1;
645 }
646
647 /***********************************************************/
648 /* QEMU Block devices */
649
650 #define HD_ALIAS "index=%d,media=disk"
651 #define CDROM_ALIAS "index=2,media=cdrom"
652 #define FD_ALIAS "index=%d,if=floppy"
653 #define PFLASH_ALIAS "if=pflash"
654 #define MTD_ALIAS "if=mtd"
655 #define SD_ALIAS "index=0,if=sd"
656
657 QemuOpts *drive_add(const char *file, const char *fmt, ...)
658 {
659 va_list ap;
660 char optstr[1024];
661 QemuOpts *opts;
662
663 va_start(ap, fmt);
664 vsnprintf(optstr, sizeof(optstr), fmt, ap);
665 va_end(ap);
666
667 opts = qemu_opts_parse(&qemu_drive_opts, optstr, 0);
668 if (!opts) {
669 return NULL;
670 }
671 if (file)
672 qemu_opt_set(opts, "file", file);
673 return opts;
674 }
675
676 DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit)
677 {
678 DriveInfo *dinfo;
679
680 /* seek interface, bus and unit */
681
682 QTAILQ_FOREACH(dinfo, &drives, next) {
683 if (dinfo->type == type &&
684 dinfo->bus == bus &&
685 dinfo->unit == unit)
686 return dinfo;
687 }
688
689 return NULL;
690 }
691
692 DriveInfo *drive_get_by_id(const char *id)
693 {
694 DriveInfo *dinfo;
695
696 QTAILQ_FOREACH(dinfo, &drives, next) {
697 if (strcmp(id, dinfo->id))
698 continue;
699 return dinfo;
700 }
701 return NULL;
702 }
703
704 int drive_get_max_bus(BlockInterfaceType type)
705 {
706 int max_bus;
707 DriveInfo *dinfo;
708
709 max_bus = -1;
710 QTAILQ_FOREACH(dinfo, &drives, next) {
711 if(dinfo->type == type &&
712 dinfo->bus > max_bus)
713 max_bus = dinfo->bus;
714 }
715 return max_bus;
716 }
717
718 const char *drive_get_serial(BlockDriverState *bdrv)
719 {
720 DriveInfo *dinfo;
721
722 QTAILQ_FOREACH(dinfo, &drives, next) {
723 if (dinfo->bdrv == bdrv)
724 return dinfo->serial;
725 }
726
727 return "\0";
728 }
729
730 BlockInterfaceErrorAction drive_get_on_error(
731 BlockDriverState *bdrv, int is_read)
732 {
733 DriveInfo *dinfo;
734
735 QTAILQ_FOREACH(dinfo, &drives, next) {
736 if (dinfo->bdrv == bdrv)
737 return is_read ? dinfo->on_read_error : dinfo->on_write_error;
738 }
739
740 return is_read ? BLOCK_ERR_REPORT : BLOCK_ERR_STOP_ENOSPC;
741 }
742
743 static void bdrv_format_print(void *opaque, const char *name)
744 {
745 fprintf(stderr, " %s", name);
746 }
747
748 void drive_uninit(DriveInfo *dinfo)
749 {
750 qemu_opts_del(dinfo->opts);
751 bdrv_delete(dinfo->bdrv);
752 QTAILQ_REMOVE(&drives, dinfo, next);
753 qemu_free(dinfo);
754 }
755
756 static int parse_block_error_action(const char *buf, int is_read)
757 {
758 if (!strcmp(buf, "ignore")) {
759 return BLOCK_ERR_IGNORE;
760 } else if (!is_read && !strcmp(buf, "enospc")) {
761 return BLOCK_ERR_STOP_ENOSPC;
762 } else if (!strcmp(buf, "stop")) {
763 return BLOCK_ERR_STOP_ANY;
764 } else if (!strcmp(buf, "report")) {
765 return BLOCK_ERR_REPORT;
766 } else {
767 fprintf(stderr, "qemu: '%s' invalid %s error action\n",
768 buf, is_read ? "read" : "write");
769 return -1;
770 }
771 }
772
773 DriveInfo *drive_init(QemuOpts *opts, void *opaque,
774 int *fatal_error)
775 {
776 const char *buf;
777 const char *file = NULL;
778 char devname[128];
779 const char *serial;
780 const char *mediastr = "";
781 BlockInterfaceType type;
782 enum { MEDIA_DISK, MEDIA_CDROM } media;
783 int bus_id, unit_id;
784 int cyls, heads, secs, translation;
785 BlockDriver *drv = NULL;
786 QEMUMachine *machine = opaque;
787 int max_devs;
788 int index;
789 int ro = 0;
790 int bdrv_flags = 0;
791 int on_read_error, on_write_error;
792 const char *devaddr;
793 DriveInfo *dinfo;
794 int snapshot = 0;
795
796 *fatal_error = 1;
797
798 translation = BIOS_ATA_TRANSLATION_AUTO;
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 bdrv_flags |= BDRV_O_NOCACHE;
914 } else if (!strcmp(buf, "writeback")) {
915 bdrv_flags |= BDRV_O_CACHE_WB;
916 } else if (!strcmp(buf, "writethrough")) {
917 /* this is the default */
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, "native")) {
927 bdrv_flags |= BDRV_O_NATIVE_AIO;
928 } else if (!strcmp(buf, "threads")) {
929 /* this is the default */
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 if (snapshot) {
1105 /* always use write-back with snapshot */
1106 bdrv_flags &= ~BDRV_O_CACHE_MASK;
1107 bdrv_flags |= (BDRV_O_SNAPSHOT|BDRV_O_CACHE_WB);
1108 }
1109
1110 if (media == MEDIA_CDROM) {
1111 /* CDROM is fine for any interface, don't check. */
1112 ro = 1;
1113 } else if (ro == 1) {
1114 if (type != IF_SCSI && type != IF_VIRTIO && type != IF_FLOPPY) {
1115 fprintf(stderr, "qemu: readonly flag not supported for drive with this interface\n");
1116 return NULL;
1117 }
1118 }
1119
1120 bdrv_flags |= ro ? 0 : BDRV_O_RDWR;
1121
1122 if (bdrv_open(dinfo->bdrv, file, bdrv_flags, drv) < 0) {
1123 fprintf(stderr, "qemu: could not open disk image %s: %s\n",
1124 file, strerror(errno));
1125 return NULL;
1126 }
1127
1128 if (bdrv_key_required(dinfo->bdrv))
1129 autostart = 0;
1130 *fatal_error = 0;
1131 return dinfo;
1132 }
1133
1134 static int drive_init_func(QemuOpts *opts, void *opaque)
1135 {
1136 QEMUMachine *machine = opaque;
1137 int fatal_error = 0;
1138
1139 if (drive_init(opts, machine, &fatal_error) == NULL) {
1140 if (fatal_error)
1141 return 1;
1142 }
1143 return 0;
1144 }
1145
1146 static int drive_enable_snapshot(QemuOpts *opts, void *opaque)
1147 {
1148 if (NULL == qemu_opt_get(opts, "snapshot")) {
1149 qemu_opt_set(opts, "snapshot", "on");
1150 }
1151 return 0;
1152 }
1153
1154 void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
1155 {
1156 boot_set_handler = func;
1157 boot_set_opaque = opaque;
1158 }
1159
1160 int qemu_boot_set(const char *boot_devices)
1161 {
1162 if (!boot_set_handler) {
1163 return -EINVAL;
1164 }
1165 return boot_set_handler(boot_set_opaque, boot_devices);
1166 }
1167
1168 static void validate_bootdevices(char *devices)
1169 {
1170 /* We just do some generic consistency checks */
1171 const char *p;
1172 int bitmap = 0;
1173
1174 for (p = devices; *p != '\0'; p++) {
1175 /* Allowed boot devices are:
1176 * a-b: floppy disk drives
1177 * c-f: IDE disk drives
1178 * g-m: machine implementation dependant drives
1179 * n-p: network devices
1180 * It's up to each machine implementation to check if the given boot
1181 * devices match the actual hardware implementation and firmware
1182 * features.
1183 */
1184 if (*p < 'a' || *p > 'p') {
1185 fprintf(stderr, "Invalid boot device '%c'\n", *p);
1186 exit(1);
1187 }
1188 if (bitmap & (1 << (*p - 'a'))) {
1189 fprintf(stderr, "Boot device '%c' was given twice\n", *p);
1190 exit(1);
1191 }
1192 bitmap |= 1 << (*p - 'a');
1193 }
1194 }
1195
1196 static void restore_boot_devices(void *opaque)
1197 {
1198 char *standard_boot_devices = opaque;
1199 static int first = 1;
1200
1201 /* Restore boot order and remove ourselves after the first boot */
1202 if (first) {
1203 first = 0;
1204 return;
1205 }
1206
1207 qemu_boot_set(standard_boot_devices);
1208
1209 qemu_unregister_reset(restore_boot_devices, standard_boot_devices);
1210 qemu_free(standard_boot_devices);
1211 }
1212
1213 static void numa_add(const char *optarg)
1214 {
1215 char option[128];
1216 char *endptr;
1217 unsigned long long value, endvalue;
1218 int nodenr;
1219
1220 optarg = get_opt_name(option, 128, optarg, ',') + 1;
1221 if (!strcmp(option, "node")) {
1222 if (get_param_value(option, 128, "nodeid", optarg) == 0) {
1223 nodenr = nb_numa_nodes;
1224 } else {
1225 nodenr = strtoull(option, NULL, 10);
1226 }
1227
1228 if (get_param_value(option, 128, "mem", optarg) == 0) {
1229 node_mem[nodenr] = 0;
1230 } else {
1231 value = strtoull(option, &endptr, 0);
1232 switch (*endptr) {
1233 case 0: case 'M': case 'm':
1234 value <<= 20;
1235 break;
1236 case 'G': case 'g':
1237 value <<= 30;
1238 break;
1239 }
1240 node_mem[nodenr] = value;
1241 }
1242 if (get_param_value(option, 128, "cpus", optarg) == 0) {
1243 node_cpumask[nodenr] = 0;
1244 } else {
1245 value = strtoull(option, &endptr, 10);
1246 if (value >= 64) {
1247 value = 63;
1248 fprintf(stderr, "only 64 CPUs in NUMA mode supported.\n");
1249 } else {
1250 if (*endptr == '-') {
1251 endvalue = strtoull(endptr+1, &endptr, 10);
1252 if (endvalue >= 63) {
1253 endvalue = 62;
1254 fprintf(stderr,
1255 "only 63 CPUs in NUMA mode supported.\n");
1256 }
1257 value = (2ULL << endvalue) - (1ULL << value);
1258 } else {
1259 value = 1ULL << value;
1260 }
1261 }
1262 node_cpumask[nodenr] = value;
1263 }
1264 nb_numa_nodes++;
1265 }
1266 return;
1267 }
1268
1269 static void smp_parse(const char *optarg)
1270 {
1271 int smp, sockets = 0, threads = 0, cores = 0;
1272 char *endptr;
1273 char option[128];
1274
1275 smp = strtoul(optarg, &endptr, 10);
1276 if (endptr != optarg) {
1277 if (*endptr == ',') {
1278 endptr++;
1279 }
1280 }
1281 if (get_param_value(option, 128, "sockets", endptr) != 0)
1282 sockets = strtoull(option, NULL, 10);
1283 if (get_param_value(option, 128, "cores", endptr) != 0)
1284 cores = strtoull(option, NULL, 10);
1285 if (get_param_value(option, 128, "threads", endptr) != 0)
1286 threads = strtoull(option, NULL, 10);
1287 if (get_param_value(option, 128, "maxcpus", endptr) != 0)
1288 max_cpus = strtoull(option, NULL, 10);
1289
1290 /* compute missing values, prefer sockets over cores over threads */
1291 if (smp == 0 || sockets == 0) {
1292 sockets = sockets > 0 ? sockets : 1;
1293 cores = cores > 0 ? cores : 1;
1294 threads = threads > 0 ? threads : 1;
1295 if (smp == 0) {
1296 smp = cores * threads * sockets;
1297 }
1298 } else {
1299 if (cores == 0) {
1300 threads = threads > 0 ? threads : 1;
1301 cores = smp / (sockets * threads);
1302 } else {
1303 if (sockets) {
1304 threads = smp / (cores * sockets);
1305 }
1306 }
1307 }
1308 smp_cpus = smp;
1309 smp_cores = cores > 0 ? cores : 1;
1310 smp_threads = threads > 0 ? threads : 1;
1311 if (max_cpus == 0)
1312 max_cpus = smp_cpus;
1313 }
1314
1315 /***********************************************************/
1316 /* USB devices */
1317
1318 static int usb_device_add(const char *devname, int is_hotplug)
1319 {
1320 const char *p;
1321 USBDevice *dev = NULL;
1322
1323 if (!usb_enabled)
1324 return -1;
1325
1326 /* drivers with .usbdevice_name entry in USBDeviceInfo */
1327 dev = usbdevice_create(devname);
1328 if (dev)
1329 goto done;
1330
1331 /* the other ones */
1332 if (strstart(devname, "host:", &p)) {
1333 dev = usb_host_device_open(p);
1334 } else if (!strcmp(devname, "bt") || strstart(devname, "bt:", &p)) {
1335 dev = usb_bt_init(devname[2] ? hci_init(p) :
1336 bt_new_hci(qemu_find_bt_vlan(0)));
1337 } else {
1338 return -1;
1339 }
1340 if (!dev)
1341 return -1;
1342
1343 done:
1344 return 0;
1345 }
1346
1347 static int usb_device_del(const char *devname)
1348 {
1349 int bus_num, addr;
1350 const char *p;
1351
1352 if (strstart(devname, "host:", &p))
1353 return usb_host_device_close(p);
1354
1355 if (!usb_enabled)
1356 return -1;
1357
1358 p = strchr(devname, '.');
1359 if (!p)
1360 return -1;
1361 bus_num = strtoul(devname, NULL, 0);
1362 addr = strtoul(p + 1, NULL, 0);
1363
1364 return usb_device_delete_addr(bus_num, addr);
1365 }
1366
1367 static int usb_parse(const char *cmdline)
1368 {
1369 int r;
1370 r = usb_device_add(cmdline, 0);
1371 if (r < 0) {
1372 fprintf(stderr, "qemu: could not add USB device '%s'\n", cmdline);
1373 }
1374 return r;
1375 }
1376
1377 void do_usb_add(Monitor *mon, const QDict *qdict)
1378 {
1379 const char *devname = qdict_get_str(qdict, "devname");
1380 if (usb_device_add(devname, 1) < 0) {
1381 error_report("could not add USB device '%s'", devname);
1382 }
1383 }
1384
1385 void do_usb_del(Monitor *mon, const QDict *qdict)
1386 {
1387 const char *devname = qdict_get_str(qdict, "devname");
1388 if (usb_device_del(devname) < 0) {
1389 error_report("could not delete USB device '%s'", devname);
1390 }
1391 }
1392
1393 /***********************************************************/
1394 /* PCMCIA/Cardbus */
1395
1396 static struct pcmcia_socket_entry_s {
1397 PCMCIASocket *socket;
1398 struct pcmcia_socket_entry_s *next;
1399 } *pcmcia_sockets = 0;
1400
1401 void pcmcia_socket_register(PCMCIASocket *socket)
1402 {
1403 struct pcmcia_socket_entry_s *entry;
1404
1405 entry = qemu_malloc(sizeof(struct pcmcia_socket_entry_s));
1406 entry->socket = socket;
1407 entry->next = pcmcia_sockets;
1408 pcmcia_sockets = entry;
1409 }
1410
1411 void pcmcia_socket_unregister(PCMCIASocket *socket)
1412 {
1413 struct pcmcia_socket_entry_s *entry, **ptr;
1414
1415 ptr = &pcmcia_sockets;
1416 for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
1417 if (entry->socket == socket) {
1418 *ptr = entry->next;
1419 qemu_free(entry);
1420 }
1421 }
1422
1423 void pcmcia_info(Monitor *mon)
1424 {
1425 struct pcmcia_socket_entry_s *iter;
1426
1427 if (!pcmcia_sockets)
1428 monitor_printf(mon, "No PCMCIA sockets\n");
1429
1430 for (iter = pcmcia_sockets; iter; iter = iter->next)
1431 monitor_printf(mon, "%s: %s\n", iter->socket->slot_string,
1432 iter->socket->attached ? iter->socket->card_string :
1433 "Empty");
1434 }
1435
1436 /***********************************************************/
1437 /* I/O handling */
1438
1439 typedef struct IOHandlerRecord {
1440 int fd;
1441 IOCanReadHandler *fd_read_poll;
1442 IOHandler *fd_read;
1443 IOHandler *fd_write;
1444 int deleted;
1445 void *opaque;
1446 /* temporary data */
1447 struct pollfd *ufd;
1448 QLIST_ENTRY(IOHandlerRecord) next;
1449 } IOHandlerRecord;
1450
1451 static QLIST_HEAD(, IOHandlerRecord) io_handlers =
1452 QLIST_HEAD_INITIALIZER(io_handlers);
1453
1454
1455 /* XXX: fd_read_poll should be suppressed, but an API change is
1456 necessary in the character devices to suppress fd_can_read(). */
1457 int qemu_set_fd_handler2(int fd,
1458 IOCanReadHandler *fd_read_poll,
1459 IOHandler *fd_read,
1460 IOHandler *fd_write,
1461 void *opaque)
1462 {
1463 IOHandlerRecord *ioh;
1464
1465 if (!fd_read && !fd_write) {
1466 QLIST_FOREACH(ioh, &io_handlers, next) {
1467 if (ioh->fd == fd) {
1468 ioh->deleted = 1;
1469 break;
1470 }
1471 }
1472 } else {
1473 QLIST_FOREACH(ioh, &io_handlers, next) {
1474 if (ioh->fd == fd)
1475 goto found;
1476 }
1477 ioh = qemu_mallocz(sizeof(IOHandlerRecord));
1478 QLIST_INSERT_HEAD(&io_handlers, ioh, next);
1479 found:
1480 ioh->fd = fd;
1481 ioh->fd_read_poll = fd_read_poll;
1482 ioh->fd_read = fd_read;
1483 ioh->fd_write = fd_write;
1484 ioh->opaque = opaque;
1485 ioh->deleted = 0;
1486 }
1487 return 0;
1488 }
1489
1490 int qemu_set_fd_handler(int fd,
1491 IOHandler *fd_read,
1492 IOHandler *fd_write,
1493 void *opaque)
1494 {
1495 return qemu_set_fd_handler2(fd, NULL, fd_read, fd_write, opaque);
1496 }
1497
1498 #ifdef _WIN32
1499 /***********************************************************/
1500 /* Polling handling */
1501
1502 typedef struct PollingEntry {
1503 PollingFunc *func;
1504 void *opaque;
1505 struct PollingEntry *next;
1506 } PollingEntry;
1507
1508 static PollingEntry *first_polling_entry;
1509
1510 int qemu_add_polling_cb(PollingFunc *func, void *opaque)
1511 {
1512 PollingEntry **ppe, *pe;
1513 pe = qemu_mallocz(sizeof(PollingEntry));
1514 pe->func = func;
1515 pe->opaque = opaque;
1516 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next);
1517 *ppe = pe;
1518 return 0;
1519 }
1520
1521 void qemu_del_polling_cb(PollingFunc *func, void *opaque)
1522 {
1523 PollingEntry **ppe, *pe;
1524 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next) {
1525 pe = *ppe;
1526 if (pe->func == func && pe->opaque == opaque) {
1527 *ppe = pe->next;
1528 qemu_free(pe);
1529 break;
1530 }
1531 }
1532 }
1533
1534 /***********************************************************/
1535 /* Wait objects support */
1536 typedef struct WaitObjects {
1537 int num;
1538 HANDLE events[MAXIMUM_WAIT_OBJECTS + 1];
1539 WaitObjectFunc *func[MAXIMUM_WAIT_OBJECTS + 1];
1540 void *opaque[MAXIMUM_WAIT_OBJECTS + 1];
1541 } WaitObjects;
1542
1543 static WaitObjects wait_objects = {0};
1544
1545 int qemu_add_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
1546 {
1547 WaitObjects *w = &wait_objects;
1548
1549 if (w->num >= MAXIMUM_WAIT_OBJECTS)
1550 return -1;
1551 w->events[w->num] = handle;
1552 w->func[w->num] = func;
1553 w->opaque[w->num] = opaque;
1554 w->num++;
1555 return 0;
1556 }
1557
1558 void qemu_del_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
1559 {
1560 int i, found;
1561 WaitObjects *w = &wait_objects;
1562
1563 found = 0;
1564 for (i = 0; i < w->num; i++) {
1565 if (w->events[i] == handle)
1566 found = 1;
1567 if (found) {
1568 w->events[i] = w->events[i + 1];
1569 w->func[i] = w->func[i + 1];
1570 w->opaque[i] = w->opaque[i + 1];
1571 }
1572 }
1573 if (found)
1574 w->num--;
1575 }
1576 #endif
1577
1578 /***********************************************************/
1579 /* machine registration */
1580
1581 static QEMUMachine *first_machine = NULL;
1582 QEMUMachine *current_machine = NULL;
1583
1584 int qemu_register_machine(QEMUMachine *m)
1585 {
1586 QEMUMachine **pm;
1587 pm = &first_machine;
1588 while (*pm != NULL)
1589 pm = &(*pm)->next;
1590 m->next = NULL;
1591 *pm = m;
1592 return 0;
1593 }
1594
1595 static QEMUMachine *find_machine(const char *name)
1596 {
1597 QEMUMachine *m;
1598
1599 for(m = first_machine; m != NULL; m = m->next) {
1600 if (!strcmp(m->name, name))
1601 return m;
1602 if (m->alias && !strcmp(m->alias, name))
1603 return m;
1604 }
1605 return NULL;
1606 }
1607
1608 static QEMUMachine *find_default_machine(void)
1609 {
1610 QEMUMachine *m;
1611
1612 for(m = first_machine; m != NULL; m = m->next) {
1613 if (m->is_default) {
1614 return m;
1615 }
1616 }
1617 return NULL;
1618 }
1619
1620 /***********************************************************/
1621 /* main execution loop */
1622
1623 static void gui_update(void *opaque)
1624 {
1625 uint64_t interval = GUI_REFRESH_INTERVAL;
1626 DisplayState *ds = opaque;
1627 DisplayChangeListener *dcl = ds->listeners;
1628
1629 qemu_flush_coalesced_mmio_buffer();
1630 dpy_refresh(ds);
1631
1632 while (dcl != NULL) {
1633 if (dcl->gui_timer_interval &&
1634 dcl->gui_timer_interval < interval)
1635 interval = dcl->gui_timer_interval;
1636 dcl = dcl->next;
1637 }
1638 qemu_mod_timer(ds->gui_timer, interval + qemu_get_clock(rt_clock));
1639 }
1640
1641 static void nographic_update(void *opaque)
1642 {
1643 uint64_t interval = GUI_REFRESH_INTERVAL;
1644
1645 qemu_flush_coalesced_mmio_buffer();
1646 qemu_mod_timer(nographic_timer, interval + qemu_get_clock(rt_clock));
1647 }
1648
1649 struct vm_change_state_entry {
1650 VMChangeStateHandler *cb;
1651 void *opaque;
1652 QLIST_ENTRY (vm_change_state_entry) entries;
1653 };
1654
1655 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1656
1657 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1658 void *opaque)
1659 {
1660 VMChangeStateEntry *e;
1661
1662 e = qemu_mallocz(sizeof (*e));
1663
1664 e->cb = cb;
1665 e->opaque = opaque;
1666 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1667 return e;
1668 }
1669
1670 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1671 {
1672 QLIST_REMOVE (e, entries);
1673 qemu_free (e);
1674 }
1675
1676 void vm_state_notify(int running, int reason)
1677 {
1678 VMChangeStateEntry *e;
1679
1680 for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
1681 e->cb(e->opaque, running, reason);
1682 }
1683 }
1684
1685 void vm_start(void)
1686 {
1687 if (!vm_running) {
1688 cpu_enable_ticks();
1689 vm_running = 1;
1690 vm_state_notify(1, 0);
1691 resume_all_vcpus();
1692 }
1693 }
1694
1695 /* reset/shutdown handler */
1696
1697 typedef struct QEMUResetEntry {
1698 QTAILQ_ENTRY(QEMUResetEntry) entry;
1699 QEMUResetHandler *func;
1700 void *opaque;
1701 } QEMUResetEntry;
1702
1703 static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
1704 QTAILQ_HEAD_INITIALIZER(reset_handlers);
1705 static int reset_requested;
1706 static int shutdown_requested;
1707 static int powerdown_requested;
1708 int debug_requested;
1709 int vmstop_requested;
1710 static int exit_requested;
1711
1712 int qemu_shutdown_requested(void)
1713 {
1714 int r = shutdown_requested;
1715 shutdown_requested = 0;
1716 return r;
1717 }
1718
1719 int qemu_reset_requested(void)
1720 {
1721 int r = reset_requested;
1722 reset_requested = 0;
1723 return r;
1724 }
1725
1726 int qemu_powerdown_requested(void)
1727 {
1728 int r = powerdown_requested;
1729 powerdown_requested = 0;
1730 return r;
1731 }
1732
1733 int qemu_exit_requested(void)
1734 {
1735 /* just return it, we'll exit() anyway */
1736 return exit_requested;
1737 }
1738
1739 static int qemu_debug_requested(void)
1740 {
1741 int r = debug_requested;
1742 debug_requested = 0;
1743 return r;
1744 }
1745
1746 static int qemu_vmstop_requested(void)
1747 {
1748 int r = vmstop_requested;
1749 vmstop_requested = 0;
1750 return r;
1751 }
1752
1753 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
1754 {
1755 QEMUResetEntry *re = qemu_mallocz(sizeof(QEMUResetEntry));
1756
1757 re->func = func;
1758 re->opaque = opaque;
1759 QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
1760 }
1761
1762 void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
1763 {
1764 QEMUResetEntry *re;
1765
1766 QTAILQ_FOREACH(re, &reset_handlers, entry) {
1767 if (re->func == func && re->opaque == opaque) {
1768 QTAILQ_REMOVE(&reset_handlers, re, entry);
1769 qemu_free(re);
1770 return;
1771 }
1772 }
1773 }
1774
1775 void qemu_system_reset(void)
1776 {
1777 QEMUResetEntry *re, *nre;
1778
1779 /* reset all devices */
1780 QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
1781 re->func(re->opaque);
1782 }
1783 monitor_protocol_event(QEVENT_RESET, NULL);
1784 cpu_synchronize_all_post_reset();
1785 }
1786
1787 void qemu_system_reset_request(void)
1788 {
1789 if (no_reboot) {
1790 shutdown_requested = 1;
1791 } else {
1792 reset_requested = 1;
1793 }
1794 qemu_notify_event();
1795 }
1796
1797 void qemu_system_shutdown_request(void)
1798 {
1799 shutdown_requested = 1;
1800 qemu_notify_event();
1801 }
1802
1803 void qemu_system_powerdown_request(void)
1804 {
1805 powerdown_requested = 1;
1806 qemu_notify_event();
1807 }
1808
1809 void qemu_system_exit_request(void)
1810 {
1811 exit_requested = 1;
1812 qemu_notify_event();
1813 }
1814
1815 #ifdef _WIN32
1816 static void host_main_loop_wait(int *timeout)
1817 {
1818 int ret, ret2, i;
1819 PollingEntry *pe;
1820
1821
1822 /* XXX: need to suppress polling by better using win32 events */
1823 ret = 0;
1824 for(pe = first_polling_entry; pe != NULL; pe = pe->next) {
1825 ret |= pe->func(pe->opaque);
1826 }
1827 if (ret == 0) {
1828 int err;
1829 WaitObjects *w = &wait_objects;
1830
1831 ret = WaitForMultipleObjects(w->num, w->events, FALSE, *timeout);
1832 if (WAIT_OBJECT_0 + 0 <= ret && ret <= WAIT_OBJECT_0 + w->num - 1) {
1833 if (w->func[ret - WAIT_OBJECT_0])
1834 w->func[ret - WAIT_OBJECT_0](w->opaque[ret - WAIT_OBJECT_0]);
1835
1836 /* Check for additional signaled events */
1837 for(i = (ret - WAIT_OBJECT_0 + 1); i < w->num; i++) {
1838
1839 /* Check if event is signaled */
1840 ret2 = WaitForSingleObject(w->events[i], 0);
1841 if(ret2 == WAIT_OBJECT_0) {
1842 if (w->func[i])
1843 w->func[i](w->opaque[i]);
1844 } else if (ret2 == WAIT_TIMEOUT) {
1845 } else {
1846 err = GetLastError();
1847 fprintf(stderr, "WaitForSingleObject error %d %d\n", i, err);
1848 }
1849 }
1850 } else if (ret == WAIT_TIMEOUT) {
1851 } else {
1852 err = GetLastError();
1853 fprintf(stderr, "WaitForMultipleObjects error %d %d\n", ret, err);
1854 }
1855 }
1856
1857 *timeout = 0;
1858 }
1859 #else
1860 static void host_main_loop_wait(int *timeout)
1861 {
1862 }
1863 #endif
1864
1865 void main_loop_wait(int nonblocking)
1866 {
1867 IOHandlerRecord *ioh;
1868 fd_set rfds, wfds, xfds;
1869 int ret, nfds;
1870 struct timeval tv;
1871 int timeout;
1872
1873 if (nonblocking)
1874 timeout = 0;
1875 else {
1876 timeout = qemu_calculate_timeout();
1877 qemu_bh_update_timeout(&timeout);
1878 }
1879
1880 host_main_loop_wait(&timeout);
1881
1882 /* poll any events */
1883 /* XXX: separate device handlers from system ones */
1884 nfds = -1;
1885 FD_ZERO(&rfds);
1886 FD_ZERO(&wfds);
1887 FD_ZERO(&xfds);
1888 QLIST_FOREACH(ioh, &io_handlers, next) {
1889 if (ioh->deleted)
1890 continue;
1891 if (ioh->fd_read &&
1892 (!ioh->fd_read_poll ||
1893 ioh->fd_read_poll(ioh->opaque) != 0)) {
1894 FD_SET(ioh->fd, &rfds);
1895 if (ioh->fd > nfds)
1896 nfds = ioh->fd;
1897 }
1898 if (ioh->fd_write) {
1899 FD_SET(ioh->fd, &wfds);
1900 if (ioh->fd > nfds)
1901 nfds = ioh->fd;
1902 }
1903 }
1904
1905 tv.tv_sec = timeout / 1000;
1906 tv.tv_usec = (timeout % 1000) * 1000;
1907
1908 slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
1909
1910 qemu_mutex_unlock_iothread();
1911 ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
1912 qemu_mutex_lock_iothread();
1913 if (ret > 0) {
1914 IOHandlerRecord *pioh;
1915
1916 QLIST_FOREACH_SAFE(ioh, &io_handlers, next, pioh) {
1917 if (ioh->deleted) {
1918 QLIST_REMOVE(ioh, next);
1919 qemu_free(ioh);
1920 continue;
1921 }
1922 if (ioh->fd_read && FD_ISSET(ioh->fd, &rfds)) {
1923 ioh->fd_read(ioh->opaque);
1924 }
1925 if (ioh->fd_write && FD_ISSET(ioh->fd, &wfds)) {
1926 ioh->fd_write(ioh->opaque);
1927 }
1928 }
1929 }
1930
1931 slirp_select_poll(&rfds, &wfds, &xfds, (ret < 0));
1932
1933 qemu_run_all_timers();
1934
1935 /* Check bottom-halves last in case any of the earlier events triggered
1936 them. */
1937 qemu_bh_poll();
1938
1939 }
1940
1941 static int vm_can_run(void)
1942 {
1943 if (powerdown_requested)
1944 return 0;
1945 if (reset_requested)
1946 return 0;
1947 if (shutdown_requested)
1948 return 0;
1949 if (debug_requested)
1950 return 0;
1951 if (exit_requested)
1952 return 0;
1953 return 1;
1954 }
1955
1956 qemu_irq qemu_system_powerdown;
1957
1958 static void main_loop(void)
1959 {
1960 int r;
1961
1962 qemu_main_loop_start();
1963
1964 for (;;) {
1965 do {
1966 bool nonblocking = false;
1967 #ifdef CONFIG_PROFILER
1968 int64_t ti;
1969 #endif
1970 #ifndef CONFIG_IOTHREAD
1971 nonblocking = tcg_cpu_exec();
1972 #endif
1973 #ifdef CONFIG_PROFILER
1974 ti = profile_getclock();
1975 #endif
1976 main_loop_wait(nonblocking);
1977 #ifdef CONFIG_PROFILER
1978 dev_time += profile_getclock() - ti;
1979 #endif
1980 } while (vm_can_run());
1981
1982 if ((r = qemu_debug_requested())) {
1983 vm_stop(r);
1984 }
1985 if (qemu_shutdown_requested()) {
1986 monitor_protocol_event(QEVENT_SHUTDOWN, NULL);
1987 if (no_shutdown) {
1988 vm_stop(0);
1989 no_shutdown = 0;
1990 } else
1991 break;
1992 }
1993 if (qemu_reset_requested()) {
1994 pause_all_vcpus();
1995 qemu_system_reset();
1996 resume_all_vcpus();
1997 }
1998 if (qemu_powerdown_requested()) {
1999 monitor_protocol_event(QEVENT_POWERDOWN, NULL);
2000 qemu_irq_raise(qemu_system_powerdown);
2001 }
2002 if ((r = qemu_vmstop_requested())) {
2003 vm_stop(r);
2004 }
2005 if (qemu_exit_requested()) {
2006 exit(0);
2007 }
2008 }
2009 pause_all_vcpus();
2010 }
2011
2012 static void version(void)
2013 {
2014 printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
2015 }
2016
2017 static void help(int exitcode)
2018 {
2019 const char *options_help =
2020 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
2021 opt_help
2022 #define DEFHEADING(text) stringify(text) "\n"
2023 #include "qemu-options.h"
2024 #undef DEF
2025 #undef DEFHEADING
2026 #undef GEN_DOCS
2027 ;
2028 version();
2029 printf("usage: %s [options] [disk_image]\n"
2030 "\n"
2031 "'disk_image' is a raw hard disk image for IDE hard disk 0\n"
2032 "\n"
2033 "%s\n"
2034 "During emulation, the following keys are useful:\n"
2035 "ctrl-alt-f toggle full screen\n"
2036 "ctrl-alt-n switch to virtual console 'n'\n"
2037 "ctrl-alt toggle mouse and keyboard grab\n"
2038 "\n"
2039 "When using -nographic, press 'ctrl-a h' to get some help.\n",
2040 "qemu",
2041 options_help);
2042 exit(exitcode);
2043 }
2044
2045 #define HAS_ARG 0x0001
2046
2047 enum {
2048 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
2049 opt_enum,
2050 #define DEFHEADING(text)
2051 #include "qemu-options.h"
2052 #undef DEF
2053 #undef DEFHEADING
2054 #undef GEN_DOCS
2055 };
2056
2057 typedef struct QEMUOption {
2058 const char *name;
2059 int flags;
2060 int index;
2061 uint32_t arch_mask;
2062 } QEMUOption;
2063
2064 static const QEMUOption qemu_options[] = {
2065 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
2066 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
2067 { option, opt_arg, opt_enum, arch_mask },
2068 #define DEFHEADING(text)
2069 #include "qemu-options.h"
2070 #undef DEF
2071 #undef DEFHEADING
2072 #undef GEN_DOCS
2073 { NULL },
2074 };
2075 static void select_vgahw (const char *p)
2076 {
2077 const char *opts;
2078
2079 default_vga = 0;
2080 vga_interface_type = VGA_NONE;
2081 if (strstart(p, "std", &opts)) {
2082 vga_interface_type = VGA_STD;
2083 } else if (strstart(p, "cirrus", &opts)) {
2084 vga_interface_type = VGA_CIRRUS;
2085 } else if (strstart(p, "vmware", &opts)) {
2086 vga_interface_type = VGA_VMWARE;
2087 } else if (strstart(p, "xenfb", &opts)) {
2088 vga_interface_type = VGA_XENFB;
2089 } else if (!strstart(p, "none", &opts)) {
2090 invalid_vga:
2091 fprintf(stderr, "Unknown vga type: %s\n", p);
2092 exit(1);
2093 }
2094 while (*opts) {
2095 const char *nextopt;
2096
2097 if (strstart(opts, ",retrace=", &nextopt)) {
2098 opts = nextopt;
2099 if (strstart(opts, "dumb", &nextopt))
2100 vga_retrace_method = VGA_RETRACE_DUMB;
2101 else if (strstart(opts, "precise", &nextopt))
2102 vga_retrace_method = VGA_RETRACE_PRECISE;
2103 else goto invalid_vga;
2104 } else goto invalid_vga;
2105 opts = nextopt;
2106 }
2107 }
2108
2109 static int balloon_parse(const char *arg)
2110 {
2111 QemuOpts *opts;
2112
2113 if (strcmp(arg, "none") == 0) {
2114 return 0;
2115 }
2116
2117 if (!strncmp(arg, "virtio", 6)) {
2118 if (arg[6] == ',') {
2119 /* have params -> parse them */
2120 opts = qemu_opts_parse(&qemu_device_opts, arg+7, 0);
2121 if (!opts)
2122 return -1;
2123 } else {
2124 /* create empty opts */
2125 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2126 }
2127 qemu_opt_set(opts, "driver", "virtio-balloon-pci");
2128 return 0;
2129 }
2130
2131 return -1;
2132 }
2133
2134 #ifdef _WIN32
2135 static BOOL WINAPI qemu_ctrl_handler(DWORD type)
2136 {
2137 exit(STATUS_CONTROL_C_EXIT);
2138 return TRUE;
2139 }
2140 #endif
2141
2142 #ifndef _WIN32
2143
2144 static void termsig_handler(int signal)
2145 {
2146 qemu_system_shutdown_request();
2147 }
2148
2149 static void sigchld_handler(int signal)
2150 {
2151 waitpid(-1, NULL, WNOHANG);
2152 }
2153
2154 static void sighandler_setup(void)
2155 {
2156 struct sigaction act;
2157
2158 memset(&act, 0, sizeof(act));
2159 act.sa_handler = termsig_handler;
2160 sigaction(SIGINT, &act, NULL);
2161 sigaction(SIGHUP, &act, NULL);
2162 sigaction(SIGTERM, &act, NULL);
2163
2164 act.sa_handler = sigchld_handler;
2165 act.sa_flags = SA_NOCLDSTOP;
2166 sigaction(SIGCHLD, &act, NULL);
2167 }
2168
2169 #endif
2170
2171 #ifdef _WIN32
2172 /* Look for support files in the same directory as the executable. */
2173 static char *find_datadir(const char *argv0)
2174 {
2175 char *p;
2176 char buf[MAX_PATH];
2177 DWORD len;
2178
2179 len = GetModuleFileName(NULL, buf, sizeof(buf) - 1);
2180 if (len == 0) {
2181 return NULL;
2182 }
2183
2184 buf[len] = 0;
2185 p = buf + len - 1;
2186 while (p != buf && *p != '\\')
2187 p--;
2188 *p = 0;
2189 if (access(buf, R_OK) == 0) {
2190 return qemu_strdup(buf);
2191 }
2192 return NULL;
2193 }
2194 #else /* !_WIN32 */
2195
2196 /* Find a likely location for support files using the location of the binary.
2197 For installed binaries this will be "$bindir/../share/qemu". When
2198 running from the build tree this will be "$bindir/../pc-bios". */
2199 #define SHARE_SUFFIX "/share/qemu"
2200 #define BUILD_SUFFIX "/pc-bios"
2201 static char *find_datadir(const char *argv0)
2202 {
2203 char *dir;
2204 char *p = NULL;
2205 char *res;
2206 char buf[PATH_MAX];
2207 size_t max_len;
2208
2209 #if defined(__linux__)
2210 {
2211 int len;
2212 len = readlink("/proc/self/exe", buf, sizeof(buf) - 1);
2213 if (len > 0) {
2214 buf[len] = 0;
2215 p = buf;
2216 }
2217 }
2218 #elif defined(__FreeBSD__)
2219 {
2220 static int mib[4] = {CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, -1};
2221 size_t len = sizeof(buf) - 1;
2222
2223 *buf = '\0';
2224 if (!sysctl(mib, sizeof(mib)/sizeof(*mib), buf, &len, NULL, 0) &&
2225 *buf) {
2226 buf[sizeof(buf) - 1] = '\0';
2227 p = buf;
2228 }
2229 }
2230 #endif
2231 /* If we don't have any way of figuring out the actual executable
2232 location then try argv[0]. */
2233 if (!p) {
2234 p = realpath(argv0, buf);
2235 if (!p) {
2236 return NULL;
2237 }
2238 }
2239 dir = dirname(p);
2240 dir = dirname(dir);
2241
2242 max_len = strlen(dir) +
2243 MAX(strlen(SHARE_SUFFIX), strlen(BUILD_SUFFIX)) + 1;
2244 res = qemu_mallocz(max_len);
2245 snprintf(res, max_len, "%s%s", dir, SHARE_SUFFIX);
2246 if (access(res, R_OK)) {
2247 snprintf(res, max_len, "%s%s", dir, BUILD_SUFFIX);
2248 if (access(res, R_OK)) {
2249 qemu_free(res);
2250 res = NULL;
2251 }
2252 }
2253
2254 return res;
2255 }
2256 #undef SHARE_SUFFIX
2257 #undef BUILD_SUFFIX
2258 #endif
2259
2260 char *qemu_find_file(int type, const char *name)
2261 {
2262 int len;
2263 const char *subdir;
2264 char *buf;
2265
2266 /* If name contains path separators then try it as a straight path. */
2267 if ((strchr(name, '/') || strchr(name, '\\'))
2268 && access(name, R_OK) == 0) {
2269 return qemu_strdup(name);
2270 }
2271 switch (type) {
2272 case QEMU_FILE_TYPE_BIOS:
2273 subdir = "";
2274 break;
2275 case QEMU_FILE_TYPE_KEYMAP:
2276 subdir = "keymaps/";
2277 break;
2278 default:
2279 abort();
2280 }
2281 len = strlen(data_dir) + strlen(name) + strlen(subdir) + 2;
2282 buf = qemu_mallocz(len);
2283 snprintf(buf, len, "%s/%s%s", data_dir, subdir, name);
2284 if (access(buf, R_OK)) {
2285 qemu_free(buf);
2286 return NULL;
2287 }
2288 return buf;
2289 }
2290
2291 static int device_help_func(QemuOpts *opts, void *opaque)
2292 {
2293 return qdev_device_help(opts);
2294 }
2295
2296 static int device_init_func(QemuOpts *opts, void *opaque)
2297 {
2298 DeviceState *dev;
2299
2300 dev = qdev_device_add(opts);
2301 if (!dev)
2302 return -1;
2303 return 0;
2304 }
2305
2306 static int chardev_init_func(QemuOpts *opts, void *opaque)
2307 {
2308 CharDriverState *chr;
2309
2310 chr = qemu_chr_open_opts(opts, NULL);
2311 if (!chr)
2312 return -1;
2313 return 0;
2314 }
2315
2316 #ifdef CONFIG_LINUX
2317 static int fsdev_init_func(QemuOpts *opts, void *opaque)
2318 {
2319 int ret;
2320 ret = qemu_fsdev_add(opts);
2321
2322 return ret;
2323 }
2324 #endif
2325
2326 static int mon_init_func(QemuOpts *opts, void *opaque)
2327 {
2328 CharDriverState *chr;
2329 const char *chardev;
2330 const char *mode;
2331 int flags;
2332
2333 mode = qemu_opt_get(opts, "mode");
2334 if (mode == NULL) {
2335 mode = "readline";
2336 }
2337 if (strcmp(mode, "readline") == 0) {
2338 flags = MONITOR_USE_READLINE;
2339 } else if (strcmp(mode, "control") == 0) {
2340 flags = MONITOR_USE_CONTROL;
2341 } else {
2342 fprintf(stderr, "unknown monitor mode \"%s\"\n", mode);
2343 exit(1);
2344 }
2345
2346 if (qemu_opt_get_bool(opts, "default", 0))
2347 flags |= MONITOR_IS_DEFAULT;
2348
2349 chardev = qemu_opt_get(opts, "chardev");
2350 chr = qemu_chr_find(chardev);
2351 if (chr == NULL) {
2352 fprintf(stderr, "chardev \"%s\" not found\n", chardev);
2353 exit(1);
2354 }
2355
2356 monitor_init(chr, flags);
2357 return 0;
2358 }
2359
2360 static void monitor_parse(const char *optarg, const char *mode)
2361 {
2362 static int monitor_device_index = 0;
2363 QemuOpts *opts;
2364 const char *p;
2365 char label[32];
2366 int def = 0;
2367
2368 if (strstart(optarg, "chardev:", &p)) {
2369 snprintf(label, sizeof(label), "%s", p);
2370 } else {
2371 snprintf(label, sizeof(label), "compat_monitor%d",
2372 monitor_device_index);
2373 if (monitor_device_index == 0) {
2374 def = 1;
2375 }
2376 opts = qemu_chr_parse_compat(label, optarg);
2377 if (!opts) {
2378 fprintf(stderr, "parse error: %s\n", optarg);
2379 exit(1);
2380 }
2381 }
2382
2383 opts = qemu_opts_create(&qemu_mon_opts, label, 1);
2384 if (!opts) {
2385 fprintf(stderr, "duplicate chardev: %s\n", label);
2386 exit(1);
2387 }
2388 qemu_opt_set(opts, "mode", mode);
2389 qemu_opt_set(opts, "chardev", label);
2390 if (def)
2391 qemu_opt_set(opts, "default", "on");
2392 monitor_device_index++;
2393 }
2394
2395 struct device_config {
2396 enum {
2397 DEV_USB, /* -usbdevice */
2398 DEV_BT, /* -bt */
2399 DEV_SERIAL, /* -serial */
2400 DEV_PARALLEL, /* -parallel */
2401 DEV_VIRTCON, /* -virtioconsole */
2402 DEV_DEBUGCON, /* -debugcon */
2403 } type;
2404 const char *cmdline;
2405 QTAILQ_ENTRY(device_config) next;
2406 };
2407 QTAILQ_HEAD(, device_config) device_configs = QTAILQ_HEAD_INITIALIZER(device_configs);
2408
2409 static void add_device_config(int type, const char *cmdline)
2410 {
2411 struct device_config *conf;
2412
2413 conf = qemu_mallocz(sizeof(*conf));
2414 conf->type = type;
2415 conf->cmdline = cmdline;
2416 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2417 }
2418
2419 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2420 {
2421 struct device_config *conf;
2422 int rc;
2423
2424 QTAILQ_FOREACH(conf, &device_configs, next) {
2425 if (conf->type != type)
2426 continue;
2427 rc = func(conf->cmdline);
2428 if (0 != rc)
2429 return rc;
2430 }
2431 return 0;
2432 }
2433
2434 static int serial_parse(const char *devname)
2435 {
2436 static int index = 0;
2437 char label[32];
2438
2439 if (strcmp(devname, "none") == 0)
2440 return 0;
2441 if (index == MAX_SERIAL_PORTS) {
2442 fprintf(stderr, "qemu: too many serial ports\n");
2443 exit(1);
2444 }
2445 snprintf(label, sizeof(label), "serial%d", index);
2446 serial_hds[index] = qemu_chr_open(label, devname, NULL);
2447 if (!serial_hds[index]) {
2448 fprintf(stderr, "qemu: could not open serial device '%s': %s\n",
2449 devname, strerror(errno));
2450 return -1;
2451 }
2452 index++;
2453 return 0;
2454 }
2455
2456 static int parallel_parse(const char *devname)
2457 {
2458 static int index = 0;
2459 char label[32];
2460
2461 if (strcmp(devname, "none") == 0)
2462 return 0;
2463 if (index == MAX_PARALLEL_PORTS) {
2464 fprintf(stderr, "qemu: too many parallel ports\n");
2465 exit(1);
2466 }
2467 snprintf(label, sizeof(label), "parallel%d", index);
2468 parallel_hds[index] = qemu_chr_open(label, devname, NULL);
2469 if (!parallel_hds[index]) {
2470 fprintf(stderr, "qemu: could not open parallel device '%s': %s\n",
2471 devname, strerror(errno));
2472 return -1;
2473 }
2474 index++;
2475 return 0;
2476 }
2477
2478 static int virtcon_parse(const char *devname)
2479 {
2480 static int index = 0;
2481 char label[32];
2482 QemuOpts *bus_opts, *dev_opts;
2483
2484 if (strcmp(devname, "none") == 0)
2485 return 0;
2486 if (index == MAX_VIRTIO_CONSOLES) {
2487 fprintf(stderr, "qemu: too many virtio consoles\n");
2488 exit(1);
2489 }
2490
2491 bus_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2492 qemu_opt_set(bus_opts, "driver", "virtio-serial");
2493
2494 dev_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2495 qemu_opt_set(dev_opts, "driver", "virtconsole");
2496
2497 snprintf(label, sizeof(label), "virtcon%d", index);
2498 virtcon_hds[index] = qemu_chr_open(label, devname, NULL);
2499 if (!virtcon_hds[index]) {
2500 fprintf(stderr, "qemu: could not open virtio console '%s': %s\n",
2501 devname, strerror(errno));
2502 return -1;
2503 }
2504 qemu_opt_set(dev_opts, "chardev", label);
2505
2506 index++;
2507 return 0;
2508 }
2509
2510 static int debugcon_parse(const char *devname)
2511 {
2512 QemuOpts *opts;
2513
2514 if (!qemu_chr_open("debugcon", devname, NULL)) {
2515 exit(1);
2516 }
2517 opts = qemu_opts_create(&qemu_device_opts, "debugcon", 1);
2518 if (!opts) {
2519 fprintf(stderr, "qemu: already have a debugcon device\n");
2520 exit(1);
2521 }
2522 qemu_opt_set(opts, "driver", "isa-debugcon");
2523 qemu_opt_set(opts, "chardev", "debugcon");
2524 return 0;
2525 }
2526
2527 static const QEMUOption *lookup_opt(int argc, char **argv,
2528 const char **poptarg, int *poptind)
2529 {
2530 const QEMUOption *popt;
2531 int optind = *poptind;
2532 char *r = argv[optind];
2533 const char *optarg;
2534
2535 loc_set_cmdline(argv, optind, 1);
2536 optind++;
2537 /* Treat --foo the same as -foo. */
2538 if (r[1] == '-')
2539 r++;
2540 popt = qemu_options;
2541 for(;;) {
2542 if (!popt->name) {
2543 error_report("invalid option");
2544 exit(1);
2545 }
2546 if (!strcmp(popt->name, r + 1))
2547 break;
2548 popt++;
2549 }
2550 if (popt->flags & HAS_ARG) {
2551 if (optind >= argc) {
2552 error_report("requires an argument");
2553 exit(1);
2554 }
2555 optarg = argv[optind++];
2556 loc_set_cmdline(argv, optind - 2, 2);
2557 } else {
2558 optarg = NULL;
2559 }
2560
2561 *poptarg = optarg;
2562 *poptind = optind;
2563
2564 return popt;
2565 }
2566
2567 int main(int argc, char **argv, char **envp)
2568 {
2569 const char *gdbstub_dev = NULL;
2570 int i;
2571 int snapshot, linux_boot;
2572 const char *icount_option = NULL;
2573 const char *initrd_filename;
2574 const char *kernel_filename, *kernel_cmdline;
2575 char boot_devices[33] = "cad"; /* default to HD->floppy->CD-ROM */
2576 DisplayState *ds;
2577 DisplayChangeListener *dcl;
2578 int cyls, heads, secs, translation;
2579 QemuOpts *hda_opts = NULL, *opts;
2580 int optind;
2581 const char *optarg;
2582 const char *loadvm = NULL;
2583 QEMUMachine *machine;
2584 const char *cpu_model;
2585 #ifndef _WIN32
2586 int fds[2];
2587 #endif
2588 int tb_size;
2589 const char *pid_file = NULL;
2590 const char *incoming = NULL;
2591 #ifndef _WIN32
2592 int fd = 0;
2593 struct passwd *pwd = NULL;
2594 const char *chroot_dir = NULL;
2595 const char *run_as = NULL;
2596 #endif
2597 int show_vnc_port = 0;
2598 int defconfig = 1;
2599
2600 error_set_progname(argv[0]);
2601
2602 init_clocks();
2603
2604 qemu_cache_utils_init(envp);
2605
2606 QLIST_INIT (&vm_change_state_head);
2607 #ifndef _WIN32
2608 {
2609 struct sigaction act;
2610 sigfillset(&act.sa_mask);
2611 act.sa_flags = 0;
2612 act.sa_handler = SIG_IGN;
2613 sigaction(SIGPIPE, &act, NULL);
2614 }
2615 #else
2616 SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE);
2617 /* Note: cpu_interrupt() is currently not SMP safe, so we force
2618 QEMU to run on a single CPU */
2619 {
2620 HANDLE h;
2621 DWORD mask, smask;
2622 int i;
2623 h = GetCurrentProcess();
2624 if (GetProcessAffinityMask(h, &mask, &smask)) {
2625 for(i = 0; i < 32; i++) {
2626 if (mask & (1 << i))
2627 break;
2628 }
2629 if (i != 32) {
2630 mask = 1 << i;
2631 SetProcessAffinityMask(h, mask);
2632 }
2633 }
2634 }
2635 #endif
2636
2637 module_call_init(MODULE_INIT_MACHINE);
2638 machine = find_default_machine();
2639 cpu_model = NULL;
2640 initrd_filename = NULL;
2641 ram_size = 0;
2642 snapshot = 0;
2643 kernel_filename = NULL;
2644 kernel_cmdline = "";
2645 cyls = heads = secs = 0;
2646 translation = BIOS_ATA_TRANSLATION_AUTO;
2647
2648 for (i = 0; i < MAX_NODES; i++) {
2649 node_mem[i] = 0;
2650 node_cpumask[i] = 0;
2651 }
2652
2653 nb_numa_nodes = 0;
2654 nb_nics = 0;
2655
2656 tb_size = 0;
2657 autostart= 1;
2658
2659 /* first pass of option parsing */
2660 optind = 1;
2661 while (optind < argc) {
2662 if (argv[optind][0] != '-') {
2663 /* disk image */
2664 optind++;
2665 continue;
2666 } else {
2667 const QEMUOption *popt;
2668
2669 popt = lookup_opt(argc, argv, &optarg, &optind);
2670 switch (popt->index) {
2671 case QEMU_OPTION_nodefconfig:
2672 defconfig=0;
2673 break;
2674 }
2675 }
2676 }
2677
2678 if (defconfig) {
2679 int ret;
2680
2681 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2682 if (ret == -EINVAL) {
2683 exit(1);
2684 }
2685
2686 ret = qemu_read_config_file(arch_config_name);
2687 if (ret == -EINVAL) {
2688 exit(1);
2689 }
2690 }
2691 cpudef_init();
2692
2693 /* second pass of option parsing */
2694 optind = 1;
2695 for(;;) {
2696 if (optind >= argc)
2697 break;
2698 if (argv[optind][0] != '-') {
2699 hda_opts = drive_add(argv[optind++], HD_ALIAS, 0);
2700 } else {
2701 const QEMUOption *popt;
2702
2703 popt = lookup_opt(argc, argv, &optarg, &optind);
2704 if (!(popt->arch_mask & arch_type)) {
2705 printf("Option %s not supported for this target\n", popt->name);
2706 exit(1);
2707 }
2708 switch(popt->index) {
2709 case QEMU_OPTION_M:
2710 machine = find_machine(optarg);
2711 if (!machine) {
2712 QEMUMachine *m;
2713 printf("Supported machines are:\n");
2714 for(m = first_machine; m != NULL; m = m->next) {
2715 if (m->alias)
2716 printf("%-10s %s (alias of %s)\n",
2717 m->alias, m->desc, m->name);
2718 printf("%-10s %s%s\n",
2719 m->name, m->desc,
2720 m->is_default ? " (default)" : "");
2721 }
2722 exit(*optarg != '?');
2723 }
2724 break;
2725 case QEMU_OPTION_cpu:
2726 /* hw initialization will check this */
2727 if (*optarg == '?') {
2728 /* XXX: implement xxx_cpu_list for targets that still miss it */
2729 #if defined(cpu_list_id)
2730 cpu_list_id(stdout, &fprintf, optarg);
2731 #elif defined(cpu_list)
2732 cpu_list(stdout, &fprintf); /* deprecated */
2733 #endif
2734 exit(0);
2735 } else {
2736 cpu_model = optarg;
2737 }
2738 break;
2739 case QEMU_OPTION_initrd:
2740 initrd_filename = optarg;
2741 break;
2742 case QEMU_OPTION_hda:
2743 if (cyls == 0)
2744 hda_opts = drive_add(optarg, HD_ALIAS, 0);
2745 else
2746 hda_opts = drive_add(optarg, HD_ALIAS
2747 ",cyls=%d,heads=%d,secs=%d%s",
2748 0, cyls, heads, secs,
2749 translation == BIOS_ATA_TRANSLATION_LBA ?
2750 ",trans=lba" :
2751 translation == BIOS_ATA_TRANSLATION_NONE ?
2752 ",trans=none" : "");
2753 break;
2754 case QEMU_OPTION_hdb:
2755 case QEMU_OPTION_hdc:
2756 case QEMU_OPTION_hdd:
2757 drive_add(optarg, HD_ALIAS, popt->index - QEMU_OPTION_hda);
2758 break;
2759 case QEMU_OPTION_drive:
2760 drive_add(NULL, "%s", optarg);
2761 break;
2762 case QEMU_OPTION_set:
2763 if (qemu_set_option(optarg) != 0)
2764 exit(1);
2765 break;
2766 case QEMU_OPTION_global:
2767 if (qemu_global_option(optarg) != 0)
2768 exit(1);
2769 break;
2770 case QEMU_OPTION_mtdblock:
2771 drive_add(optarg, MTD_ALIAS);
2772 break;
2773 case QEMU_OPTION_sd:
2774 drive_add(optarg, SD_ALIAS);
2775 break;
2776 case QEMU_OPTION_pflash:
2777 drive_add(optarg, PFLASH_ALIAS);
2778 break;
2779 case QEMU_OPTION_snapshot:
2780 snapshot = 1;
2781 break;
2782 case QEMU_OPTION_hdachs:
2783 {
2784 const char *p;
2785 p = optarg;
2786 cyls = strtol(p, (char **)&p, 0);
2787 if (cyls < 1 || cyls > 16383)
2788 goto chs_fail;
2789 if (*p != ',')
2790 goto chs_fail;
2791 p++;
2792 heads = strtol(p, (char **)&p, 0);
2793 if (heads < 1 || heads > 16)
2794 goto chs_fail;
2795 if (*p != ',')
2796 goto chs_fail;
2797 p++;
2798 secs = strtol(p, (char **)&p, 0);
2799 if (secs < 1 || secs > 63)
2800 goto chs_fail;
2801 if (*p == ',') {
2802 p++;
2803 if (!strcmp(p, "none"))
2804 translation = BIOS_ATA_TRANSLATION_NONE;
2805 else if (!strcmp(p, "lba"))
2806 translation = BIOS_ATA_TRANSLATION_LBA;
2807 else if (!strcmp(p, "auto"))
2808 translation = BIOS_ATA_TRANSLATION_AUTO;
2809 else
2810 goto chs_fail;
2811 } else if (*p != '\0') {
2812 chs_fail:
2813 fprintf(stderr, "qemu: invalid physical CHS format\n");
2814 exit(1);
2815 }
2816 if (hda_opts != NULL) {
2817 char num[16];
2818 snprintf(num, sizeof(num), "%d", cyls);
2819 qemu_opt_set(hda_opts, "cyls", num);
2820 snprintf(num, sizeof(num), "%d", heads);
2821 qemu_opt_set(hda_opts, "heads", num);
2822 snprintf(num, sizeof(num), "%d", secs);
2823 qemu_opt_set(hda_opts, "secs", num);
2824 if (translation == BIOS_ATA_TRANSLATION_LBA)
2825 qemu_opt_set(hda_opts, "trans", "lba");
2826 if (translation == BIOS_ATA_TRANSLATION_NONE)
2827 qemu_opt_set(hda_opts, "trans", "none");
2828 }
2829 }
2830 break;
2831 case QEMU_OPTION_numa:
2832 if (nb_numa_nodes >= MAX_NODES) {
2833 fprintf(stderr, "qemu: too many NUMA nodes\n");
2834 exit(1);
2835 }
2836 numa_add(optarg);
2837 break;
2838 case QEMU_OPTION_nographic:
2839 display_type = DT_NOGRAPHIC;
2840 break;
2841 #ifdef CONFIG_CURSES
2842 case QEMU_OPTION_curses:
2843 display_type = DT_CURSES;
2844 break;
2845 #endif
2846 case QEMU_OPTION_portrait:
2847 graphic_rotate = 1;
2848 break;
2849 case QEMU_OPTION_kernel:
2850 kernel_filename = optarg;
2851 break;
2852 case QEMU_OPTION_append:
2853 kernel_cmdline = optarg;
2854 break;
2855 case QEMU_OPTION_cdrom:
2856 drive_add(optarg, CDROM_ALIAS);
2857 break;
2858 case QEMU_OPTION_boot:
2859 {
2860 static const char * const params[] = {
2861 "order", "once", "menu", NULL
2862 };
2863 char buf[sizeof(boot_devices)];
2864 char *standard_boot_devices;
2865 int legacy = 0;
2866
2867 if (!strchr(optarg, '=')) {
2868 legacy = 1;
2869 pstrcpy(buf, sizeof(buf), optarg);
2870 } else if (check_params(buf, sizeof(buf), params, optarg) < 0) {
2871 fprintf(stderr,
2872 "qemu: unknown boot parameter '%s' in '%s'\n",
2873 buf, optarg);
2874 exit(1);
2875 }
2876
2877 if (legacy ||
2878 get_param_value(buf, sizeof(buf), "order", optarg)) {
2879 validate_bootdevices(buf);
2880 pstrcpy(boot_devices, sizeof(boot_devices), buf);
2881 }
2882 if (!legacy) {
2883 if (get_param_value(buf, sizeof(buf),
2884 "once", optarg)) {
2885 validate_bootdevices(buf);
2886 standard_boot_devices = qemu_strdup(boot_devices);
2887 pstrcpy(boot_devices, sizeof(boot_devices), buf);
2888 qemu_register_reset(restore_boot_devices,
2889 standard_boot_devices);
2890 }
2891 if (get_param_value(buf, sizeof(buf),
2892 "menu", optarg)) {
2893 if (!strcmp(buf, "on")) {
2894 boot_menu = 1;
2895 } else if (!strcmp(buf, "off")) {
2896 boot_menu = 0;
2897 } else {
2898 fprintf(stderr,
2899 "qemu: invalid option value '%s'\n",
2900 buf);
2901 exit(1);
2902 }
2903 }
2904 }
2905 }
2906 break;
2907 case QEMU_OPTION_fda:
2908 case QEMU_OPTION_fdb:
2909 drive_add(optarg, FD_ALIAS, popt->index - QEMU_OPTION_fda);
2910 break;
2911 case QEMU_OPTION_no_fd_bootchk:
2912 fd_bootchk = 0;
2913 break;
2914 case QEMU_OPTION_netdev:
2915 if (net_client_parse(&qemu_netdev_opts, optarg) == -1) {
2916 exit(1);
2917 }
2918 break;
2919 case QEMU_OPTION_net:
2920 if (net_client_parse(&qemu_net_opts, optarg) == -1) {
2921 exit(1);
2922 }
2923 break;
2924 #ifdef CONFIG_SLIRP
2925 case QEMU_OPTION_tftp:
2926 legacy_tftp_prefix = optarg;
2927 break;
2928 case QEMU_OPTION_bootp:
2929 legacy_bootp_filename = optarg;
2930 break;
2931 #ifndef _WIN32
2932 case QEMU_OPTION_smb:
2933 if (net_slirp_smb(optarg) < 0)
2934 exit(1);
2935 break;
2936 #endif
2937 case QEMU_OPTION_redir:
2938 if (net_slirp_redir(optarg) < 0)
2939 exit(1);
2940 break;
2941 #endif
2942 case QEMU_OPTION_bt:
2943 add_device_config(DEV_BT, optarg);
2944 break;
2945 case QEMU_OPTION_audio_help:
2946 if (!(audio_available())) {
2947 printf("Option %s not supported for this target\n", popt->name);
2948 exit(1);
2949 }
2950 AUD_help ();
2951 exit (0);
2952 break;
2953 case QEMU_OPTION_soundhw:
2954 if (!(audio_available())) {
2955 printf("Option %s not supported for this target\n", popt->name);
2956 exit(1);
2957 }
2958 select_soundhw (optarg);
2959 break;
2960 case QEMU_OPTION_h:
2961 help(0);
2962 break;
2963 case QEMU_OPTION_version:
2964 version();
2965 exit(0);
2966 break;
2967 case QEMU_OPTION_m: {
2968 uint64_t value;
2969 char *ptr;
2970
2971 value = strtoul(optarg, &ptr, 10);
2972 switch (*ptr) {
2973 case 0: case 'M': case 'm':
2974 value <<= 20;
2975 break;
2976 case 'G': case 'g':
2977 value <<= 30;
2978 break;
2979 default:
2980 fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
2981 exit(1);
2982 }
2983
2984 /* On 32-bit hosts, QEMU is limited by virtual address space */
2985 if (value > (2047 << 20) && HOST_LONG_BITS == 32) {
2986 fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
2987 exit(1);
2988 }
2989 if (value != (uint64_t)(ram_addr_t)value) {
2990 fprintf(stderr, "qemu: ram size too large\n");
2991 exit(1);
2992 }
2993 ram_size = value;
2994 break;
2995 }
2996 case QEMU_OPTION_mempath:
2997 mem_path = optarg;
2998 break;
2999 #ifdef MAP_POPULATE
3000 case QEMU_OPTION_mem_prealloc:
3001 mem_prealloc = 1;
3002 break;
3003 #endif
3004 case QEMU_OPTION_d:
3005 set_cpu_log(optarg);
3006 break;
3007 case QEMU_OPTION_s:
3008 gdbstub_dev = "tcp::" DEFAULT_GDBSTUB_PORT;
3009 break;
3010 case QEMU_OPTION_gdb:
3011 gdbstub_dev = optarg;
3012 break;
3013 case QEMU_OPTION_L:
3014 data_dir = optarg;
3015 break;
3016 case QEMU_OPTION_bios:
3017 bios_name = optarg;
3018 break;
3019 case QEMU_OPTION_singlestep:
3020 singlestep = 1;
3021 break;
3022 case QEMU_OPTION_S:
3023 autostart = 0;
3024 break;
3025 case QEMU_OPTION_k:
3026 keyboard_layout = optarg;
3027 break;
3028 case QEMU_OPTION_localtime:
3029 rtc_utc = 0;
3030 break;
3031 case QEMU_OPTION_vga:
3032 select_vgahw (optarg);
3033 break;
3034 case QEMU_OPTION_g:
3035 {
3036 const char *p;
3037 int w, h, depth;
3038 p = optarg;
3039 w = strtol(p, (char **)&p, 10);
3040 if (w <= 0) {
3041 graphic_error:
3042 fprintf(stderr, "qemu: invalid resolution or depth\n");
3043 exit(1);
3044 }
3045 if (*p != 'x')
3046 goto graphic_error;
3047 p++;
3048 h = strtol(p, (char **)&p, 10);
3049 if (h <= 0)
3050 goto graphic_error;
3051 if (*p == 'x') {
3052 p++;
3053 depth = strtol(p, (char **)&p, 10);
3054 if (depth != 8 && depth != 15 && depth != 16 &&
3055 depth != 24 && depth != 32)
3056 goto graphic_error;
3057 } else if (*p == '\0') {
3058 depth = graphic_depth;
3059 } else {
3060 goto graphic_error;
3061 }
3062
3063 graphic_width = w;
3064 graphic_height = h;
3065 graphic_depth = depth;
3066 }
3067 break;
3068 case QEMU_OPTION_echr:
3069 {
3070 char *r;
3071 term_escape_char = strtol(optarg, &r, 0);
3072 if (r == optarg)
3073 printf("Bad argument to echr\n");
3074 break;
3075 }
3076 case QEMU_OPTION_monitor:
3077 monitor_parse(optarg, "readline");
3078 default_monitor = 0;
3079 break;
3080 case QEMU_OPTION_qmp:
3081 monitor_parse(optarg, "control");
3082 default_monitor = 0;
3083 break;
3084 case QEMU_OPTION_mon:
3085 opts = qemu_opts_parse(&qemu_mon_opts, optarg, 1);
3086 if (!opts) {
3087 exit(1);
3088 }
3089 default_monitor = 0;
3090 break;
3091 case QEMU_OPTION_chardev:
3092 opts = qemu_opts_parse(&qemu_chardev_opts, optarg, 1);
3093 if (!opts) {
3094 exit(1);
3095 }
3096 break;
3097 #ifdef CONFIG_LINUX
3098 case QEMU_OPTION_fsdev:
3099 opts = qemu_opts_parse(&qemu_fsdev_opts, optarg, 1);
3100 if (!opts) {
3101 fprintf(stderr, "parse error: %s\n", optarg);
3102 exit(1);
3103 }
3104 break;
3105 #endif
3106 case QEMU_OPTION_serial:
3107 add_device_config(DEV_SERIAL, optarg);
3108 default_serial = 0;
3109 if (strncmp(optarg, "mon:", 4) == 0) {
3110 default_monitor = 0;
3111 }
3112 break;
3113 case QEMU_OPTION_watchdog:
3114 if (watchdog) {
3115 fprintf(stderr,
3116 "qemu: only one watchdog option may be given\n");
3117 return 1;
3118 }
3119 watchdog = optarg;
3120 break;
3121 case QEMU_OPTION_watchdog_action:
3122 if (select_watchdog_action(optarg) == -1) {
3123 fprintf(stderr, "Unknown -watchdog-action parameter\n");
3124 exit(1);
3125 }
3126 break;
3127 case QEMU_OPTION_virtiocon:
3128 add_device_config(DEV_VIRTCON, optarg);
3129 default_virtcon = 0;
3130 if (strncmp(optarg, "mon:", 4) == 0) {
3131 default_monitor = 0;
3132 }
3133 break;
3134 case QEMU_OPTION_parallel:
3135 add_device_config(DEV_PARALLEL, optarg);
3136 default_parallel = 0;
3137 if (strncmp(optarg, "mon:", 4) == 0) {
3138 default_monitor = 0;
3139 }
3140 break;
3141 case QEMU_OPTION_debugcon:
3142 add_device_config(DEV_DEBUGCON, optarg);
3143 break;
3144 case QEMU_OPTION_loadvm:
3145 loadvm = optarg;
3146 break;
3147 case QEMU_OPTION_full_screen:
3148 full_screen = 1;
3149 break;
3150 #ifdef CONFIG_SDL
3151 case QEMU_OPTION_no_frame:
3152 no_frame = 1;
3153 break;
3154 case QEMU_OPTION_alt_grab:
3155 alt_grab = 1;
3156 break;
3157 case QEMU_OPTION_ctrl_grab:
3158 ctrl_grab = 1;
3159 break;
3160 case QEMU_OPTION_no_quit:
3161 no_quit = 1;
3162 break;
3163 case QEMU_OPTION_sdl:
3164 display_type = DT_SDL;
3165 break;
3166 #endif
3167 case QEMU_OPTION_pidfile:
3168 pid_file = optarg;
3169 break;
3170 case QEMU_OPTION_win2k_hack:
3171 win2k_install_hack = 1;
3172 break;
3173 case QEMU_OPTION_rtc_td_hack:
3174 rtc_td_hack = 1;
3175 break;
3176 case QEMU_OPTION_acpitable:
3177 do_acpitable_option(optarg);
3178 break;
3179 case QEMU_OPTION_smbios:
3180 do_smbios_option(optarg);
3181 break;
3182 case QEMU_OPTION_enable_kvm:
3183 kvm_allowed = 1;
3184 break;
3185 case QEMU_OPTION_usb:
3186 usb_enabled = 1;
3187 break;
3188 case QEMU_OPTION_usbdevice:
3189 usb_enabled = 1;
3190 add_device_config(DEV_USB, optarg);
3191 break;
3192 case QEMU_OPTION_device:
3193 if (!qemu_opts_parse(&qemu_device_opts, optarg, 1)) {
3194 exit(1);
3195 }
3196 break;
3197 case QEMU_OPTION_smp:
3198 smp_parse(optarg);
3199 if (smp_cpus < 1) {
3200 fprintf(stderr, "Invalid number of CPUs\n");
3201 exit(1);
3202 }
3203 if (max_cpus < smp_cpus) {
3204 fprintf(stderr, "maxcpus must be equal to or greater than "
3205 "smp\n");
3206 exit(1);
3207 }
3208 if (max_cpus > 255) {
3209 fprintf(stderr, "Unsupported number of maxcpus\n");
3210 exit(1);
3211 }
3212 break;
3213 case QEMU_OPTION_vnc:
3214 display_type = DT_VNC;
3215 vnc_display = optarg;
3216 break;
3217 case QEMU_OPTION_no_acpi:
3218 acpi_enabled = 0;
3219 break;
3220 case QEMU_OPTION_no_hpet:
3221 no_hpet = 1;
3222 break;
3223 case QEMU_OPTION_balloon:
3224 if (balloon_parse(optarg) < 0) {
3225 fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
3226 exit(1);
3227 }
3228 break;
3229 case QEMU_OPTION_no_reboot:
3230 no_reboot = 1;
3231 break;
3232 case QEMU_OPTION_no_shutdown:
3233 no_shutdown = 1;
3234 break;
3235 case QEMU_OPTION_show_cursor:
3236 cursor_hide = 0;
3237 break;
3238 case QEMU_OPTION_uuid:
3239 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
3240 fprintf(stderr, "Fail to parse UUID string."
3241 " Wrong format.\n");
3242 exit(1);
3243 }
3244 break;
3245 #ifndef _WIN32
3246 case QEMU_OPTION_daemonize:
3247 daemonize = 1;
3248 break;
3249 #endif
3250 case QEMU_OPTION_option_rom:
3251 if (nb_option_roms >= MAX_OPTION_ROMS) {
3252 fprintf(stderr, "Too many option ROMs\n");
3253 exit(1);
3254 }
3255 option_rom[nb_option_roms] = optarg;
3256 nb_option_roms++;
3257 break;
3258 case QEMU_OPTION_semihosting:
3259 semihosting_enabled = 1;
3260 break;
3261 case QEMU_OPTION_name:
3262 qemu_name = qemu_strdup(optarg);
3263 {
3264 char *p = strchr(qemu_name, ',');
3265 if (p != NULL) {
3266 *p++ = 0;
3267 if (strncmp(p, "process=", 8)) {
3268 fprintf(stderr, "Unknown subargument %s to -name", p);
3269 exit(1);
3270 }
3271 p += 8;
3272 set_proc_name(p);
3273 }
3274 }
3275 break;
3276 case QEMU_OPTION_prom_env:
3277 if (nb_prom_envs >= MAX_PROM_ENVS) {
3278 fprintf(stderr, "Too many prom variables\n");
3279 exit(1);
3280 }
3281 prom_envs[nb_prom_envs] = optarg;
3282 nb_prom_envs++;
3283 break;
3284 case QEMU_OPTION_old_param:
3285 old_param = 1;
3286 break;
3287 case QEMU_OPTION_clock:
3288 configure_alarms(optarg);
3289 break;
3290 case QEMU_OPTION_startdate:
3291 configure_rtc_date_offset(optarg, 1);
3292 break;
3293 case QEMU_OPTION_rtc:
3294 opts = qemu_opts_parse(&qemu_rtc_opts, optarg, 0);
3295 if (!opts) {
3296 exit(1);
3297 }
3298 configure_rtc(opts);
3299 break;
3300 case QEMU_OPTION_tb_size:
3301 tb_size = strtol(optarg, NULL, 0);
3302 if (tb_size < 0)
3303 tb_size = 0;
3304 break;
3305 case QEMU_OPTION_icount:
3306 icount_option = optarg;
3307 break;
3308 case QEMU_OPTION_incoming:
3309 incoming = optarg;
3310 break;
3311 case QEMU_OPTION_nodefaults:
3312 default_serial = 0;
3313 default_parallel = 0;
3314 default_virtcon = 0;
3315 default_monitor = 0;
3316 default_vga = 0;
3317 default_net = 0;
3318 default_floppy = 0;
3319 default_cdrom = 0;
3320 default_sdcard = 0;
3321 break;
3322 #ifndef _WIN32
3323 case QEMU_OPTION_chroot:
3324 chroot_dir = optarg;
3325 break;
3326 case QEMU_OPTION_runas:
3327 run_as = optarg;
3328 break;
3329 #endif
3330 case QEMU_OPTION_xen_domid:
3331 if (!(xen_available())) {
3332 printf("Option %s not supported for this target\n", popt->name);
3333 exit(1);
3334 }
3335 xen_domid = atoi(optarg);
3336 break;
3337 case QEMU_OPTION_xen_create:
3338 if (!(xen_available())) {
3339 printf("Option %s not supported for this target\n", popt->name);
3340 exit(1);
3341 }
3342 xen_mode = XEN_CREATE;
3343 break;
3344 case QEMU_OPTION_xen_attach:
3345 if (!(xen_available())) {
3346 printf("Option %s not supported for this target\n", popt->name);
3347 exit(1);
3348 }
3349 xen_mode = XEN_ATTACH;
3350 break;
3351 case QEMU_OPTION_readconfig:
3352 {
3353 int ret = qemu_read_config_file(optarg);
3354 if (ret < 0) {
3355 fprintf(stderr, "read config %s: %s\n", optarg,
3356 strerror(-ret));
3357 exit(1);
3358 }
3359 break;
3360 }
3361 case QEMU_OPTION_writeconfig:
3362 {
3363 FILE *fp;
3364 if (strcmp(optarg, "-") == 0) {
3365 fp = stdout;
3366 } else {
3367 fp = fopen(optarg, "w");
3368 if (fp == NULL) {
3369 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
3370 exit(1);
3371 }
3372 }
3373 qemu_config_write(fp);
3374 fclose(fp);
3375 break;
3376 }
3377 }
3378 }
3379 }
3380 loc_set_none();
3381
3382 /* If no data_dir is specified then try to find it relative to the
3383 executable path. */
3384 if (!data_dir) {
3385 data_dir = find_datadir(argv[0]);
3386 }
3387 /* If all else fails use the install patch specified when building. */
3388 if (!data_dir) {
3389 data_dir = CONFIG_QEMU_SHAREDIR;
3390 }
3391
3392 /*
3393 * Default to max_cpus = smp_cpus, in case the user doesn't
3394 * specify a max_cpus value.
3395 */
3396 if (!max_cpus)
3397 max_cpus = smp_cpus;
3398
3399 machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
3400 if (smp_cpus > machine->max_cpus) {
3401 fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
3402 "supported by machine `%s' (%d)\n", smp_cpus, machine->name,
3403 machine->max_cpus);
3404 exit(1);
3405 }
3406
3407 qemu_opts_foreach(&qemu_device_opts, default_driver_check, NULL, 0);
3408 qemu_opts_foreach(&qemu_global_opts, default_driver_check, NULL, 0);
3409
3410 if (machine->no_serial) {
3411 default_serial = 0;
3412 }
3413 if (machine->no_parallel) {
3414 default_parallel = 0;
3415 }
3416 if (!machine->use_virtcon) {
3417 default_virtcon = 0;
3418 }
3419 if (machine->no_vga) {
3420 default_vga = 0;
3421 }
3422 if (machine->no_floppy) {
3423 default_floppy = 0;
3424 }
3425 if (machine->no_cdrom) {
3426 default_cdrom = 0;
3427 }
3428 if (machine->no_sdcard) {
3429 default_sdcard = 0;
3430 }
3431
3432 if (display_type == DT_NOGRAPHIC) {
3433 if (default_parallel)
3434 add_device_config(DEV_PARALLEL, "null");
3435 if (default_serial && default_monitor) {
3436 add_device_config(DEV_SERIAL, "mon:stdio");
3437 } else if (default_virtcon && default_monitor) {
3438 add_device_config(DEV_VIRTCON, "mon:stdio");
3439 } else {
3440 if (default_serial)
3441 add_device_config(DEV_SERIAL, "stdio");
3442 if (default_virtcon)
3443 add_device_config(DEV_VIRTCON, "stdio");
3444 if (default_monitor)
3445 monitor_parse("stdio", "readline");
3446 }
3447 } else {
3448 if (default_serial)
3449 add_device_config(DEV_SERIAL, "vc:80Cx24C");
3450 if (default_parallel)
3451 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
3452 if (default_monitor)
3453 monitor_parse("vc:80Cx24C", "readline");
3454 if (default_virtcon)
3455 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
3456 }
3457 if (default_vga)
3458 vga_interface_type = VGA_CIRRUS;
3459
3460 if (qemu_opts_foreach(&qemu_chardev_opts, chardev_init_func, NULL, 1) != 0)
3461 exit(1);
3462 #ifdef CONFIG_LINUX
3463 if (qemu_opts_foreach(&qemu_fsdev_opts, fsdev_init_func, NULL, 1) != 0) {
3464 exit(1);
3465 }
3466 #endif
3467
3468 #ifndef _WIN32
3469 if (daemonize) {
3470 pid_t pid;
3471
3472 if (pipe(fds) == -1)
3473 exit(1);
3474
3475 pid = fork();
3476 if (pid > 0) {
3477 uint8_t status;
3478 ssize_t len;
3479
3480 close(fds[1]);
3481
3482 again:
3483 len = read(fds[0], &status, 1);
3484 if (len == -1 && (errno == EINTR))
3485 goto again;
3486
3487 if (len != 1)
3488 exit(1);
3489 else if (status == 1) {
3490 fprintf(stderr, "Could not acquire pidfile: %s\n", strerror(errno));
3491 exit(1);
3492 } else
3493 exit(0);
3494 } else if (pid < 0)
3495 exit(1);
3496
3497 close(fds[0]);
3498 qemu_set_cloexec(fds[1]);
3499
3500 setsid();
3501
3502 pid = fork();
3503 if (pid > 0)
3504 exit(0);
3505 else if (pid < 0)
3506 exit(1);
3507
3508 umask(027);
3509
3510 signal(SIGTSTP, SIG_IGN);
3511 signal(SIGTTOU, SIG_IGN);
3512 signal(SIGTTIN, SIG_IGN);
3513 }
3514 #endif
3515
3516 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
3517 #ifndef _WIN32
3518 if (daemonize) {
3519 uint8_t status = 1;
3520 if (write(fds[1], &status, 1) != 1) {
3521 perror("daemonize. Writing to pipe\n");
3522 }
3523 } else
3524 #endif
3525 fprintf(stderr, "Could not acquire pid file: %s\n", strerror(errno));
3526 exit(1);
3527 }
3528
3529 if (kvm_allowed) {
3530 int ret = kvm_init(smp_cpus);
3531 if (ret < 0) {
3532 if (!kvm_available()) {
3533 printf("KVM not supported for this target\n");
3534 } else {
3535 fprintf(stderr, "failed to initialize KVM: %s\n", strerror(-ret));
3536 }
3537 exit(1);
3538 }
3539 }
3540
3541 if (qemu_init_main_loop()) {
3542 fprintf(stderr, "qemu_init_main_loop failed\n");
3543 exit(1);
3544 }
3545 linux_boot = (kernel_filename != NULL);
3546
3547 if (!linux_boot && *kernel_cmdline != '\0') {
3548 fprintf(stderr, "-append only allowed with -kernel option\n");
3549 exit(1);
3550 }
3551
3552 if (!linux_boot && initrd_filename != NULL) {
3553 fprintf(stderr, "-initrd only allowed with -kernel option\n");
3554 exit(1);
3555 }
3556
3557 #ifndef _WIN32
3558 /* Win32 doesn't support line-buffering and requires size >= 2 */
3559 setvbuf(stdout, NULL, _IOLBF, 0);
3560 #endif
3561
3562 if (init_timer_alarm() < 0) {
3563 fprintf(stderr, "could not initialize alarm timer\n");
3564 exit(1);
3565 }
3566 configure_icount(icount_option);
3567
3568 socket_init();
3569
3570 if (net_init_clients() < 0) {
3571 exit(1);
3572 }
3573
3574 /* init the bluetooth world */
3575 if (foreach_device_config(DEV_BT, bt_parse))
3576 exit(1);
3577
3578 /* init the memory */
3579 if (ram_size == 0)
3580 ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
3581
3582 /* init the dynamic translator */
3583 cpu_exec_init_all(tb_size * 1024 * 1024);
3584
3585 bdrv_init_with_whitelist();
3586
3587 blk_mig_init();
3588
3589 if (default_cdrom) {
3590 /* we always create the cdrom drive, even if no disk is there */
3591 drive_add(NULL, CDROM_ALIAS);
3592 }
3593
3594 if (default_floppy) {
3595 /* we always create at least one floppy */
3596 drive_add(NULL, FD_ALIAS, 0);
3597 }
3598
3599 if (default_sdcard) {
3600 /* we always create one sd slot, even if no card is in it */
3601 drive_add(NULL, SD_ALIAS);
3602 }
3603
3604 /* open the virtual block devices */
3605 if (snapshot)
3606 qemu_opts_foreach(&qemu_drive_opts, drive_enable_snapshot, NULL, 0);
3607 if (qemu_opts_foreach(&qemu_drive_opts, drive_init_func, machine, 1) != 0)
3608 exit(1);
3609
3610 register_savevm_live("ram", 0, 3, NULL, ram_save_live, NULL,
3611 ram_load, NULL);
3612
3613 if (nb_numa_nodes > 0) {
3614 int i;
3615
3616 if (nb_numa_nodes > smp_cpus) {
3617 nb_numa_nodes = smp_cpus;
3618 }
3619
3620 /* If no memory size if given for any node, assume the default case
3621 * and distribute the available memory equally across all nodes
3622 */
3623 for (i = 0; i < nb_numa_nodes; i++) {
3624 if (node_mem[i] != 0)
3625 break;
3626 }
3627 if (i == nb_numa_nodes) {
3628 uint64_t usedmem = 0;
3629
3630 /* On Linux, the each node's border has to be 8MB aligned,
3631 * the final node gets the rest.
3632 */
3633 for (i = 0; i < nb_numa_nodes - 1; i++) {
3634 node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1);
3635 usedmem += node_mem[i];
3636 }
3637 node_mem[i] = ram_size - usedmem;
3638 }
3639
3640 for (i = 0; i < nb_numa_nodes; i++) {
3641 if (node_cpumask[i] != 0)
3642 break;
3643 }
3644 /* assigning the VCPUs round-robin is easier to implement, guest OSes
3645 * must cope with this anyway, because there are BIOSes out there in
3646 * real machines which also use this scheme.
3647 */
3648 if (i == nb_numa_nodes) {
3649 for (i = 0; i < smp_cpus; i++) {
3650 node_cpumask[i % nb_numa_nodes] |= 1 << i;
3651 }
3652 }
3653 }
3654
3655 if (qemu_opts_foreach(&qemu_mon_opts, mon_init_func, NULL, 1) != 0) {
3656 exit(1);
3657 }
3658
3659 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
3660 exit(1);
3661 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
3662 exit(1);
3663 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
3664 exit(1);
3665 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
3666 exit(1);
3667
3668 module_call_init(MODULE_INIT_DEVICE);
3669
3670 if (qemu_opts_foreach(&qemu_device_opts, device_help_func, NULL, 0) != 0)
3671 exit(0);
3672
3673 if (watchdog) {
3674 i = select_watchdog(watchdog);
3675 if (i > 0)
3676 exit (i == 1 ? 1 : 0);
3677 }
3678
3679 if (machine->compat_props) {
3680 qdev_prop_register_global_list(machine->compat_props);
3681 }
3682 qemu_add_globals();
3683
3684 machine->init(ram_size, boot_devices,
3685 kernel_filename, kernel_cmdline, initrd_filename, cpu_model);
3686
3687 cpu_synchronize_all_post_init();
3688
3689 #ifndef _WIN32
3690 /* must be after terminal init, SDL library changes signal handlers */
3691 sighandler_setup();
3692 #endif
3693
3694 set_numa_modes();
3695
3696 current_machine = machine;
3697
3698 /* init USB devices */
3699 if (usb_enabled) {
3700 if (foreach_device_config(DEV_USB, usb_parse) < 0)
3701 exit(1);
3702 }
3703
3704 /* init generic devices */
3705 if (qemu_opts_foreach(&qemu_device_opts, device_init_func, NULL, 1) != 0)
3706 exit(1);
3707
3708 net_check_clients();
3709
3710 /* just use the first displaystate for the moment */
3711 ds = get_displaystate();
3712
3713 if (display_type == DT_DEFAULT) {
3714 #if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
3715 display_type = DT_SDL;
3716 #else
3717 display_type = DT_VNC;
3718 vnc_display = "localhost:0,to=99";
3719 show_vnc_port = 1;
3720 #endif
3721 }
3722
3723
3724 switch (display_type) {
3725 case DT_NOGRAPHIC:
3726 break;
3727 #if defined(CONFIG_CURSES)
3728 case DT_CURSES:
3729 curses_display_init(ds, full_screen);
3730 break;
3731 #endif
3732 #if defined(CONFIG_SDL)
3733 case DT_SDL:
3734 sdl_display_init(ds, full_screen, no_frame);
3735 break;
3736 #elif defined(CONFIG_COCOA)
3737 case DT_SDL:
3738 cocoa_display_init(ds, full_screen);
3739 break;
3740 #endif
3741 case DT_VNC:
3742 vnc_display_init(ds);
3743 if (vnc_display_open(ds, vnc_display) < 0)
3744 exit(1);
3745
3746 if (show_vnc_port) {
3747 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
3748 }
3749 break;
3750 default:
3751 break;
3752 }
3753 dpy_resize(ds);
3754
3755 dcl = ds->listeners;
3756 while (dcl != NULL) {
3757 if (dcl->dpy_refresh != NULL) {
3758 ds->gui_timer = qemu_new_timer(rt_clock, gui_update, ds);
3759 qemu_mod_timer(ds->gui_timer, qemu_get_clock(rt_clock));
3760 }
3761 dcl = dcl->next;
3762 }
3763
3764 if (display_type == DT_NOGRAPHIC || display_type == DT_VNC) {
3765 nographic_timer = qemu_new_timer(rt_clock, nographic_update, NULL);
3766 qemu_mod_timer(nographic_timer, qemu_get_clock(rt_clock));
3767 }
3768
3769 text_consoles_set_display(ds);
3770
3771 if (gdbstub_dev && gdbserver_start(gdbstub_dev) < 0) {
3772 fprintf(stderr, "qemu: could not open gdbserver on device '%s'\n",
3773 gdbstub_dev);
3774 exit(1);
3775 }
3776
3777 qdev_machine_creation_done();
3778
3779 if (rom_load_all() != 0) {
3780 fprintf(stderr, "rom loading failed\n");
3781 exit(1);
3782 }
3783
3784 qemu_system_reset();
3785 if (loadvm) {
3786 if (load_vmstate(loadvm) < 0) {
3787 autostart = 0;
3788 }
3789 }
3790
3791 if (incoming) {
3792 qemu_start_incoming_migration(incoming);
3793 } else if (autostart) {
3794 vm_start();
3795 }
3796
3797 #ifndef _WIN32
3798 if (daemonize) {
3799 uint8_t status = 0;
3800 ssize_t len;
3801
3802 again1:
3803 len = write(fds[1], &status, 1);
3804 if (len == -1 && (errno == EINTR))
3805 goto again1;
3806
3807 if (len != 1)
3808 exit(1);
3809
3810 if (chdir("/")) {
3811 perror("not able to chdir to /");
3812 exit(1);
3813 }
3814 TFR(fd = qemu_open("/dev/null", O_RDWR));
3815 if (fd == -1)
3816 exit(1);
3817 }
3818
3819 if (run_as) {
3820 pwd = getpwnam(run_as);
3821 if (!pwd) {
3822 fprintf(stderr, "User \"%s\" doesn't exist\n", run_as);
3823 exit(1);
3824 }
3825 }
3826
3827 if (chroot_dir) {
3828 if (chroot(chroot_dir) < 0) {
3829 fprintf(stderr, "chroot failed\n");
3830 exit(1);
3831 }
3832 if (chdir("/")) {
3833 perror("not able to chdir to /");
3834 exit(1);
3835 }
3836 }
3837
3838 if (run_as) {
3839 if (setgid(pwd->pw_gid) < 0) {
3840 fprintf(stderr, "Failed to setgid(%d)\n", pwd->pw_gid);
3841 exit(1);
3842 }
3843 if (setuid(pwd->pw_uid) < 0) {
3844 fprintf(stderr, "Failed to setuid(%d)\n", pwd->pw_uid);
3845 exit(1);
3846 }
3847 if (setuid(0) != -1) {
3848 fprintf(stderr, "Dropping privileges failed\n");
3849 exit(1);
3850 }
3851 }
3852
3853 if (daemonize) {
3854 dup2(fd, 0);
3855 dup2(fd, 1);
3856 dup2(fd, 2);
3857
3858 close(fd);
3859 }
3860 #endif
3861
3862 main_loop();
3863 quit_timers();
3864 net_cleanup();
3865
3866 return 0;
3867 }
Anthony Liguori's QEMU queue