?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
Fix harmless if statement with empty body, spotted by clang
[qemu/aliguori-queue.git] / vl.c
bloba5a0f41729d03172f801c03f99f3cc76d763e313
1 /*
2 * QEMU System Emulator
3 *
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24 #include <unistd.h>
25 #include <fcntl.h>
26 #include <signal.h>
27 #include <time.h>
28 #include <errno.h>
29 #include <sys/time.h>
30 #include <zlib.h>
31
32 /* Needed early for CONFIG_BSD etc. */
33 #include "config-host.h"
34
35 #ifndef _WIN32
36 #include <libgen.h>
37 #include <pwd.h>
38 #include <sys/times.h>
39 #include <sys/wait.h>
40 #include <termios.h>
41 #include <sys/mman.h>
42 #include <sys/ioctl.h>
43 #include <sys/resource.h>
44 #include <sys/socket.h>
45 #include <netinet/in.h>
46 #include <net/if.h>
47 #include <arpa/inet.h>
48 #include <dirent.h>
49 #include <netdb.h>
50 #include <sys/select.h>
51 #ifdef CONFIG_BSD
52 #include <sys/stat.h>
53 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
54 #include <libutil.h>
55 #include <sys/sysctl.h>
56 #else
57 #include <util.h>
58 #endif
59 #else
60 #ifdef __linux__
61 #include <pty.h>
62 #include <malloc.h>
63 #include <sys/prctl.h>
64
65 #include <linux/ppdev.h>
66 #include <linux/parport.h>
67 #endif
68 #ifdef __sun__
69 #include <sys/stat.h>
70 #include <sys/ethernet.h>
71 #include <sys/sockio.h>
72 #include <netinet/arp.h>
73 #include <netinet/in.h>
74 #include <netinet/in_systm.h>
75 #include <netinet/ip.h>
76 #include <netinet/ip_icmp.h> // must come after ip.h
77 #include <netinet/udp.h>
78 #include <netinet/tcp.h>
79 #include <net/if.h>
80 #include <syslog.h>
81 #include <stropts.h>
82 /* See MySQL bug #7156 (http://bugs.mysql.com/bug.php?id=7156) for
83 discussion about Solaris header problems */
84 extern int madvise(caddr_t, size_t, int);
85 #endif
86 #endif
87 #endif
88
89 #if defined(__OpenBSD__)
90 #include <util.h>
91 #endif
92
93 #if defined(CONFIG_VDE)
94 #include <libvdeplug.h>
95 #endif
96
97 #ifdef _WIN32
98 #include <windows.h>
99 #endif
100
101 #ifdef CONFIG_SDL
102 #if defined(__APPLE__) || defined(main)
103 #include <SDL.h>
104 int qemu_main(int argc, char **argv, char **envp);
105 int main(int argc, char **argv)
106 {
107 return qemu_main(argc, argv, NULL);
108 }
109 #undef main
110 #define main qemu_main
111 #endif
112 #endif /* CONFIG_SDL */
113
114 #ifdef CONFIG_COCOA
115 #undef main
116 #define main qemu_main
117 #endif /* CONFIG_COCOA */
118
119 #include "hw/hw.h"
120 #include "hw/boards.h"
121 #include "hw/usb.h"
122 #include "hw/pcmcia.h"
123 #include "hw/pc.h"
124 #include "hw/isa.h"
125 #include "hw/baum.h"
126 #include "hw/bt.h"
127 #include "hw/watchdog.h"
128 #include "hw/smbios.h"
129 #include "hw/xen.h"
130 #include "hw/qdev.h"
131 #include "hw/loader.h"
132 #include "bt-host.h"
133 #include "net.h"
134 #include "net/slirp.h"
135 #include "monitor.h"
136 #include "console.h"
137 #include "sysemu.h"
138 #include "gdbstub.h"
139 #include "qemu-timer.h"
140 #include "qemu-char.h"
141 #include "cache-utils.h"
142 #include "block.h"
143 #include "block_int.h"
144 #include "block-migration.h"
145 #include "dma.h"
146 #include "audio/audio.h"
147 #include "migration.h"
148 #include "kvm.h"
149 #include "qemu-option.h"
150 #include "qemu-config.h"
151 #include "qemu-objects.h"
152
153 #include "disas.h"
154
155 #include "qemu_socket.h"
156
157 #include "slirp/libslirp.h"
158
159 #include "qemu-queue.h"
160 #include "cpus.h"
161 #include "arch_init.h"
162
163 //#define DEBUG_NET
164 //#define DEBUG_SLIRP
165
166 #define DEFAULT_RAM_SIZE 128
167
168 #define MAX_VIRTIO_CONSOLES 1
169
170 static const char *data_dir;
171 const char *bios_name = NULL;
172 /* Note: drives_table[MAX_DRIVES] is a dummy block driver if none available
173 to store the VM snapshots */
174 struct drivelist drives = QTAILQ_HEAD_INITIALIZER(drives);
175 struct driveoptlist driveopts = QTAILQ_HEAD_INITIALIZER(driveopts);
176 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
177 DisplayType display_type = DT_DEFAULT;
178 const char* keyboard_layout = NULL;
179 ram_addr_t ram_size;
180 const char *mem_path = NULL;
181 #ifdef MAP_POPULATE
182 int mem_prealloc = 0; /* force preallocation of physical target memory */
183 #endif
184 int nb_nics;
185 NICInfo nd_table[MAX_NICS];
186 int vm_running;
187 int autostart;
188 static int rtc_utc = 1;
189 static int rtc_date_offset = -1; /* -1 means no change */
190 QEMUClock *rtc_clock;
191 int vga_interface_type = VGA_NONE;
192 static int full_screen = 0;
193 #ifdef CONFIG_SDL
194 static int no_frame = 0;
195 #endif
196 int no_quit = 0;
197 CharDriverState *serial_hds[MAX_SERIAL_PORTS];
198 CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
199 CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES];
200 int win2k_install_hack = 0;
201 int rtc_td_hack = 0;
202 int usb_enabled = 0;
203 int singlestep = 0;
204 int smp_cpus = 1;
205 int max_cpus = 0;
206 int smp_cores = 1;
207 int smp_threads = 1;
208 const char *vnc_display;
209 int acpi_enabled = 1;
210 int no_hpet = 0;
211 int fd_bootchk = 1;
212 int no_reboot = 0;
213 int no_shutdown = 0;
214 int cursor_hide = 1;
215 int graphic_rotate = 0;
216 uint8_t irq0override = 1;
217 #ifndef _WIN32
218 int daemonize = 0;
219 #endif
220 const char *watchdog;
221 const char *option_rom[MAX_OPTION_ROMS];
222 int nb_option_roms;
223 int semihosting_enabled = 0;
224 int old_param = 0;
225 const char *qemu_name;
226 int alt_grab = 0;
227 int ctrl_grab = 0;
228 unsigned int nb_prom_envs = 0;
229 const char *prom_envs[MAX_PROM_ENVS];
230 int boot_menu;
231
232 int nb_numa_nodes;
233 uint64_t node_mem[MAX_NODES];
234 uint64_t node_cpumask[MAX_NODES];
235
236 static QEMUTimer *nographic_timer;
237
238 uint8_t qemu_uuid[16];
239
240 static QEMUBootSetHandler *boot_set_handler;
241 static void *boot_set_opaque;
242
243 int kvm_allowed = 0;
244 uint32_t xen_domid;
245 enum xen_mode xen_mode = XEN_EMULATE;
246
247 static int default_serial = 1;
248 static int default_parallel = 1;
249 static int default_virtcon = 1;
250 static int default_monitor = 1;
251 static int default_vga = 1;
252 static int default_floppy = 1;
253 static int default_cdrom = 1;
254 static int default_sdcard = 1;
255
256 static struct {
257 const char *driver;
258 int *flag;
259 } default_list[] = {
260 { .driver = "isa-serial", .flag = &default_serial },
261 { .driver = "isa-parallel", .flag = &default_parallel },
262 { .driver = "isa-fdc", .flag = &default_floppy },
263 { .driver = "ide-drive", .flag = &default_cdrom },
264 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
265 { .driver = "virtio-serial-s390", .flag = &default_virtcon },
266 { .driver = "virtio-serial", .flag = &default_virtcon },
267 { .driver = "VGA", .flag = &default_vga },
268 { .driver = "cirrus-vga", .flag = &default_vga },
269 { .driver = "vmware-svga", .flag = &default_vga },
270 };
271
272 static int default_driver_check(QemuOpts *opts, void *opaque)
273 {
274 const char *driver = qemu_opt_get(opts, "driver");
275 int i;
276
277 if (!driver)
278 return 0;
279 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
280 if (strcmp(default_list[i].driver, driver) != 0)
281 continue;
282 *(default_list[i].flag) = 0;
283 }
284 return 0;
285 }
286
287 /***********************************************************/
288
289 static void set_proc_name(const char *s)
290 {
291 #if defined(__linux__) && defined(PR_SET_NAME)
292 char name[16];
293 if (!s)
294 return;
295 name[sizeof(name) - 1] = 0;
296 strncpy(name, s, sizeof(name));
297 /* Could rewrite argv[0] too, but that's a bit more complicated.
298 This simple way is enough for `top'. */
299 prctl(PR_SET_NAME, name);
300 #endif
301 }
302
303 /***********************************************************/
304 /* real time host monotonic timer */
305
306 /* compute with 96 bit intermediate result: (a*b)/c */
307 uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
308 {
309 union {
310 uint64_t ll;
311 struct {
312 #ifdef HOST_WORDS_BIGENDIAN
313 uint32_t high, low;
314 #else
315 uint32_t low, high;
316 #endif
317 } l;
318 } u, res;
319 uint64_t rl, rh;
320
321 u.ll = a;
322 rl = (uint64_t)u.l.low * (uint64_t)b;
323 rh = (uint64_t)u.l.high * (uint64_t)b;
324 rh += (rl >> 32);
325 res.l.high = rh / c;
326 res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
327 return res.ll;
328 }
329
330 /***********************************************************/
331 /* host time/date access */
332 void qemu_get_timedate(struct tm *tm, int offset)
333 {
334 time_t ti;
335 struct tm *ret;
336
337 time(&ti);
338 ti += offset;
339 if (rtc_date_offset == -1) {
340 if (rtc_utc)
341 ret = gmtime(&ti);
342 else
343 ret = localtime(&ti);
344 } else {
345 ti -= rtc_date_offset;
346 ret = gmtime(&ti);
347 }
348
349 memcpy(tm, ret, sizeof(struct tm));
350 }
351
352 int qemu_timedate_diff(struct tm *tm)
353 {
354 time_t seconds;
355
356 if (rtc_date_offset == -1)
357 if (rtc_utc)
358 seconds = mktimegm(tm);
359 else
360 seconds = mktime(tm);
361 else
362 seconds = mktimegm(tm) + rtc_date_offset;
363
364 return seconds - time(NULL);
365 }
366
367 void rtc_change_mon_event(struct tm *tm)
368 {
369 QObject *data;
370
371 data = qobject_from_jsonf("{ 'offset': %d }", qemu_timedate_diff(tm));
372 monitor_protocol_event(QEVENT_RTC_CHANGE, data);
373 qobject_decref(data);
374 }
375
376 static void configure_rtc_date_offset(const char *startdate, int legacy)
377 {
378 time_t rtc_start_date;
379 struct tm tm;
380
381 if (!strcmp(startdate, "now") && legacy) {
382 rtc_date_offset = -1;
383 } else {
384 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
385 &tm.tm_year,
386 &tm.tm_mon,
387 &tm.tm_mday,
388 &tm.tm_hour,
389 &tm.tm_min,
390 &tm.tm_sec) == 6) {
391 /* OK */
392 } else if (sscanf(startdate, "%d-%d-%d",
393 &tm.tm_year,
394 &tm.tm_mon,
395 &tm.tm_mday) == 3) {
396 tm.tm_hour = 0;
397 tm.tm_min = 0;
398 tm.tm_sec = 0;
399 } else {
400 goto date_fail;
401 }
402 tm.tm_year -= 1900;
403 tm.tm_mon--;
404 rtc_start_date = mktimegm(&tm);
405 if (rtc_start_date == -1) {
406 date_fail:
407 fprintf(stderr, "Invalid date format. Valid formats are:\n"
408 "'2006-06-17T16:01:21' or '2006-06-17'\n");
409 exit(1);
410 }
411 rtc_date_offset = time(NULL) - rtc_start_date;
412 }
413 }
414
415 static void configure_rtc(QemuOpts *opts)
416 {
417 const char *value;
418
419 value = qemu_opt_get(opts, "base");
420 if (value) {
421 if (!strcmp(value, "utc")) {
422 rtc_utc = 1;
423 } else if (!strcmp(value, "localtime")) {
424 rtc_utc = 0;
425 } else {
426 configure_rtc_date_offset(value, 0);
427 }
428 }
429 value = qemu_opt_get(opts, "clock");
430 if (value) {
431 if (!strcmp(value, "host")) {
432 rtc_clock = host_clock;
433 } else if (!strcmp(value, "vm")) {
434 rtc_clock = vm_clock;
435 } else {
436 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
437 exit(1);
438 }
439 }
440 value = qemu_opt_get(opts, "driftfix");
441 if (value) {
442 if (!strcmp(value, "slew")) {
443 rtc_td_hack = 1;
444 } else if (!strcmp(value, "none")) {
445 rtc_td_hack = 0;
446 } else {
447 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
448 exit(1);
449 }
450 }
451 }
452
453 /***********************************************************/
454 /* Bluetooth support */
455 static int nb_hcis;
456 static int cur_hci;
457 static struct HCIInfo *hci_table[MAX_NICS];
458
459 static struct bt_vlan_s {
460 struct bt_scatternet_s net;
461 int id;
462 struct bt_vlan_s *next;
463 } *first_bt_vlan;
464
465 /* find or alloc a new bluetooth "VLAN" */
466 static struct bt_scatternet_s *qemu_find_bt_vlan(int id)
467 {
468 struct bt_vlan_s **pvlan, *vlan;
469 for (vlan = first_bt_vlan; vlan != NULL; vlan = vlan->next) {
470 if (vlan->id == id)
471 return &vlan->net;
472 }
473 vlan = qemu_mallocz(sizeof(struct bt_vlan_s));
474 vlan->id = id;
475 pvlan = &first_bt_vlan;
476 while (*pvlan != NULL)
477 pvlan = &(*pvlan)->next;
478 *pvlan = vlan;
479 return &vlan->net;
480 }
481
482 static void null_hci_send(struct HCIInfo *hci, const uint8_t *data, int len)
483 {
484 }
485
486 static int null_hci_addr_set(struct HCIInfo *hci, const uint8_t *bd_addr)
487 {
488 return -ENOTSUP;
489 }
490
491 static struct HCIInfo null_hci = {
492 .cmd_send = null_hci_send,
493 .sco_send = null_hci_send,
494 .acl_send = null_hci_send,
495 .bdaddr_set = null_hci_addr_set,
496 };
497
498 struct HCIInfo *qemu_next_hci(void)
499 {
500 if (cur_hci == nb_hcis)
501 return &null_hci;
502
503 return hci_table[cur_hci++];
504 }
505
506 static struct HCIInfo *hci_init(const char *str)
507 {
508 char *endp;
509 struct bt_scatternet_s *vlan = 0;
510
511 if (!strcmp(str, "null"))
512 /* null */
513 return &null_hci;
514 else if (!strncmp(str, "host", 4) && (str[4] == '\0' || str[4] == ':'))
515 /* host[:hciN] */
516 return bt_host_hci(str[4] ? str + 5 : "hci0");
517 else if (!strncmp(str, "hci", 3)) {
518 /* hci[,vlan=n] */
519 if (str[3]) {
520 if (!strncmp(str + 3, ",vlan=", 6)) {
521 vlan = qemu_find_bt_vlan(strtol(str + 9, &endp, 0));
522 if (*endp)
523 vlan = 0;
524 }
525 } else
526 vlan = qemu_find_bt_vlan(0);
527 if (vlan)
528 return bt_new_hci(vlan);
529 }
530
531 fprintf(stderr, "qemu: Unknown bluetooth HCI `%s'.\n", str);
532
533 return 0;
534 }
535
536 static int bt_hci_parse(const char *str)
537 {
538 struct HCIInfo *hci;
539 bdaddr_t bdaddr;
540
541 if (nb_hcis >= MAX_NICS) {
542 fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
543 return -1;
544 }
545
546 hci = hci_init(str);
547 if (!hci)
548 return -1;
549
550 bdaddr.b[0] = 0x52;
551 bdaddr.b[1] = 0x54;
552 bdaddr.b[2] = 0x00;
553 bdaddr.b[3] = 0x12;
554 bdaddr.b[4] = 0x34;
555 bdaddr.b[5] = 0x56 + nb_hcis;
556 hci->bdaddr_set(hci, bdaddr.b);
557
558 hci_table[nb_hcis++] = hci;
559
560 return 0;
561 }
562
563 static void bt_vhci_add(int vlan_id)
564 {
565 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
566
567 if (!vlan->slave)
568 fprintf(stderr, "qemu: warning: adding a VHCI to "
569 "an empty scatternet %i\n", vlan_id);
570
571 bt_vhci_init(bt_new_hci(vlan));
572 }
573
574 static struct bt_device_s *bt_device_add(const char *opt)
575 {
576 struct bt_scatternet_s *vlan;
577 int vlan_id = 0;
578 char *endp = strstr(opt, ",vlan=");
579 int len = (endp ? endp - opt : strlen(opt)) + 1;
580 char devname[10];
581
582 pstrcpy(devname, MIN(sizeof(devname), len), opt);
583
584 if (endp) {
585 vlan_id = strtol(endp + 6, &endp, 0);
586 if (*endp) {
587 fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
588 return 0;
589 }
590 }
591
592 vlan = qemu_find_bt_vlan(vlan_id);
593
594 if (!vlan->slave)
595 fprintf(stderr, "qemu: warning: adding a slave device to "
596 "an empty scatternet %i\n", vlan_id);
597
598 if (!strcmp(devname, "keyboard"))
599 return bt_keyboard_init(vlan);
600
601 fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
602 return 0;
603 }
604
605 static int bt_parse(const char *opt)
606 {
607 const char *endp, *p;
608 int vlan;
609
610 if (strstart(opt, "hci", &endp)) {
611 if (!*endp || *endp == ',') {
612 if (*endp)
613 if (!strstart(endp, ",vlan=", 0))
614 opt = endp + 1;
615
616 return bt_hci_parse(opt);
617 }
618 } else if (strstart(opt, "vhci", &endp)) {
619 if (!*endp || *endp == ',') {
620 if (*endp) {
621 if (strstart(endp, ",vlan=", &p)) {
622 vlan = strtol(p, (char **) &endp, 0);
623 if (*endp) {
624 fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
625 return 1;
626 }
627 } else {
628 fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1);
629 return 1;
630 }
631 } else
632 vlan = 0;
633
634 bt_vhci_add(vlan);
635 return 0;
636 }
637 } else if (strstart(opt, "device:", &endp))
638 return !bt_device_add(endp);
639
640 fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
641 return 1;
642 }
643
644 /***********************************************************/
645 /* QEMU Block devices */
646
647 #define HD_ALIAS "index=%d,media=disk"
648 #define CDROM_ALIAS "index=2,media=cdrom"
649 #define FD_ALIAS "index=%d,if=floppy"
650 #define PFLASH_ALIAS "if=pflash"
651 #define MTD_ALIAS "if=mtd"
652 #define SD_ALIAS "index=0,if=sd"
653
654 QemuOpts *drive_add(const char *file, const char *fmt, ...)
655 {
656 va_list ap;
657 char optstr[1024];
658 QemuOpts *opts;
659
660 va_start(ap, fmt);
661 vsnprintf(optstr, sizeof(optstr), fmt, ap);
662 va_end(ap);
663
664 opts = qemu_opts_parse(&qemu_drive_opts, optstr, 0);
665 if (!opts) {
666 return NULL;
667 }
668 if (file)
669 qemu_opt_set(opts, "file", file);
670 return opts;
671 }
672
673 DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit)
674 {
675 DriveInfo *dinfo;
676
677 /* seek interface, bus and unit */
678
679 QTAILQ_FOREACH(dinfo, &drives, next) {
680 if (dinfo->type == type &&
681 dinfo->bus == bus &&
682 dinfo->unit == unit)
683 return dinfo;
684 }
685
686 return NULL;
687 }
688
689 DriveInfo *drive_get_by_id(const char *id)
690 {
691 DriveInfo *dinfo;
692
693 QTAILQ_FOREACH(dinfo, &drives, next) {
694 if (strcmp(id, dinfo->id))
695 continue;
696 return dinfo;
697 }
698 return NULL;
699 }
700
701 int drive_get_max_bus(BlockInterfaceType type)
702 {
703 int max_bus;
704 DriveInfo *dinfo;
705
706 max_bus = -1;
707 QTAILQ_FOREACH(dinfo, &drives, next) {
708 if(dinfo->type == type &&
709 dinfo->bus > max_bus)
710 max_bus = dinfo->bus;
711 }
712 return max_bus;
713 }
714
715 const char *drive_get_serial(BlockDriverState *bdrv)
716 {
717 DriveInfo *dinfo;
718
719 QTAILQ_FOREACH(dinfo, &drives, next) {
720 if (dinfo->bdrv == bdrv)
721 return dinfo->serial;
722 }
723
724 return "\0";
725 }
726
727 BlockInterfaceErrorAction drive_get_on_error(
728 BlockDriverState *bdrv, int is_read)
729 {
730 DriveInfo *dinfo;
731
732 QTAILQ_FOREACH(dinfo, &drives, next) {
733 if (dinfo->bdrv == bdrv)
734 return is_read ? dinfo->on_read_error : dinfo->on_write_error;
735 }
736
737 return is_read ? BLOCK_ERR_REPORT : BLOCK_ERR_STOP_ENOSPC;
738 }
739
740 static void bdrv_format_print(void *opaque, const char *name)
741 {
742 fprintf(stderr, " %s", name);
743 }
744
745 void drive_uninit(DriveInfo *dinfo)
746 {
747 qemu_opts_del(dinfo->opts);
748 bdrv_delete(dinfo->bdrv);
749 QTAILQ_REMOVE(&drives, dinfo, next);
750 qemu_free(dinfo);
751 }
752
753 static int parse_block_error_action(const char *buf, int is_read)
754 {
755 if (!strcmp(buf, "ignore")) {
756 return BLOCK_ERR_IGNORE;
757 } else if (!is_read && !strcmp(buf, "enospc")) {
758 return BLOCK_ERR_STOP_ENOSPC;
759 } else if (!strcmp(buf, "stop")) {
760 return BLOCK_ERR_STOP_ANY;
761 } else if (!strcmp(buf, "report")) {
762 return BLOCK_ERR_REPORT;
763 } else {
764 fprintf(stderr, "qemu: '%s' invalid %s error action\n",
765 buf, is_read ? "read" : "write");
766 return -1;
767 }
768 }
769
770 DriveInfo *drive_init(QemuOpts *opts, void *opaque,
771 int *fatal_error)
772 {
773 const char *buf;
774 const char *file = NULL;
775 char devname[128];
776 const char *serial;
777 const char *mediastr = "";
778 BlockInterfaceType type;
779 enum { MEDIA_DISK, MEDIA_CDROM } media;
780 int bus_id, unit_id;
781 int cyls, heads, secs, translation;
782 BlockDriver *drv = NULL;
783 QEMUMachine *machine = opaque;
784 int max_devs;
785 int index;
786 int ro = 0;
787 int bdrv_flags = 0;
788 int on_read_error, on_write_error;
789 const char *devaddr;
790 DriveInfo *dinfo;
791 int snapshot = 0;
792
793 *fatal_error = 1;
794
795 translation = BIOS_ATA_TRANSLATION_AUTO;
796
797 if (machine && machine->use_scsi) {
798 type = IF_SCSI;
799 max_devs = MAX_SCSI_DEVS;
800 pstrcpy(devname, sizeof(devname), "scsi");
801 } else {
802 type = IF_IDE;
803 max_devs = MAX_IDE_DEVS;
804 pstrcpy(devname, sizeof(devname), "ide");
805 }
806 media = MEDIA_DISK;
807
808 /* extract parameters */
809 bus_id = qemu_opt_get_number(opts, "bus", 0);
810 unit_id = qemu_opt_get_number(opts, "unit", -1);
811 index = qemu_opt_get_number(opts, "index", -1);
812
813 cyls = qemu_opt_get_number(opts, "cyls", 0);
814 heads = qemu_opt_get_number(opts, "heads", 0);
815 secs = qemu_opt_get_number(opts, "secs", 0);
816
817 snapshot = qemu_opt_get_bool(opts, "snapshot", 0);
818 ro = qemu_opt_get_bool(opts, "readonly", 0);
819
820 file = qemu_opt_get(opts, "file");
821 serial = qemu_opt_get(opts, "serial");
822
823 if ((buf = qemu_opt_get(opts, "if")) != NULL) {
824 pstrcpy(devname, sizeof(devname), buf);
825 if (!strcmp(buf, "ide")) {
826 type = IF_IDE;
827 max_devs = MAX_IDE_DEVS;
828 } else if (!strcmp(buf, "scsi")) {
829 type = IF_SCSI;
830 max_devs = MAX_SCSI_DEVS;
831 } else if (!strcmp(buf, "floppy")) {
832 type = IF_FLOPPY;
833 max_devs = 0;
834 } else if (!strcmp(buf, "pflash")) {
835 type = IF_PFLASH;
836 max_devs = 0;
837 } else if (!strcmp(buf, "mtd")) {
838 type = IF_MTD;
839 max_devs = 0;
840 } else if (!strcmp(buf, "sd")) {
841 type = IF_SD;
842 max_devs = 0;
843 } else if (!strcmp(buf, "virtio")) {
844 type = IF_VIRTIO;
845 max_devs = 0;
846 } else if (!strcmp(buf, "xen")) {
847 type = IF_XEN;
848 max_devs = 0;
849 } else if (!strcmp(buf, "none")) {
850 type = IF_NONE;
851 max_devs = 0;
852 } else {
853 fprintf(stderr, "qemu: unsupported bus type '%s'\n", buf);
854 return NULL;
855 }
856 }
857
858 if (cyls || heads || secs) {
859 if (cyls < 1 || (type == IF_IDE && cyls > 16383)) {
860 fprintf(stderr, "qemu: '%s' invalid physical cyls number\n", buf);
861 return NULL;
862 }
863 if (heads < 1 || (type == IF_IDE && heads > 16)) {
864 fprintf(stderr, "qemu: '%s' invalid physical heads number\n", buf);
865 return NULL;
866 }
867 if (secs < 1 || (type == IF_IDE && secs > 63)) {
868 fprintf(stderr, "qemu: '%s' invalid physical secs number\n", buf);
869 return NULL;
870 }
871 }
872
873 if ((buf = qemu_opt_get(opts, "trans")) != NULL) {
874 if (!cyls) {
875 fprintf(stderr,
876 "qemu: '%s' trans must be used with cyls,heads and secs\n",
877 buf);
878 return NULL;
879 }
880 if (!strcmp(buf, "none"))
881 translation = BIOS_ATA_TRANSLATION_NONE;
882 else if (!strcmp(buf, "lba"))
883 translation = BIOS_ATA_TRANSLATION_LBA;
884 else if (!strcmp(buf, "auto"))
885 translation = BIOS_ATA_TRANSLATION_AUTO;
886 else {
887 fprintf(stderr, "qemu: '%s' invalid translation type\n", buf);
888 return NULL;
889 }
890 }
891
892 if ((buf = qemu_opt_get(opts, "media")) != NULL) {
893 if (!strcmp(buf, "disk")) {
894 media = MEDIA_DISK;
895 } else if (!strcmp(buf, "cdrom")) {
896 if (cyls || secs || heads) {
897 fprintf(stderr,
898 "qemu: '%s' invalid physical CHS format\n", buf);
899 return NULL;
900 }
901 media = MEDIA_CDROM;
902 } else {
903 fprintf(stderr, "qemu: '%s' invalid media\n", buf);
904 return NULL;
905 }
906 }
907
908 if ((buf = qemu_opt_get(opts, "cache")) != NULL) {
909 if (!strcmp(buf, "off") || !strcmp(buf, "none")) {
910 bdrv_flags |= BDRV_O_NOCACHE;
911 } else if (!strcmp(buf, "writeback")) {
912 bdrv_flags |= BDRV_O_CACHE_WB;
913 } else if (!strcmp(buf, "writethrough")) {
914 /* this is the default */
915 } else {
916 fprintf(stderr, "qemu: invalid cache option\n");
917 return NULL;
918 }
919 }
920
921 #ifdef CONFIG_LINUX_AIO
922 if ((buf = qemu_opt_get(opts, "aio")) != NULL) {
923 if (!strcmp(buf, "native")) {
924 bdrv_flags |= BDRV_O_NATIVE_AIO;
925 } else if (!strcmp(buf, "threads")) {
926 /* this is the default */
927 } else {
928 fprintf(stderr, "qemu: invalid aio option\n");
929 return NULL;
930 }
931 }
932 #endif
933
934 if ((buf = qemu_opt_get(opts, "format")) != NULL) {
935 if (strcmp(buf, "?") == 0) {
936 fprintf(stderr, "qemu: Supported formats:");
937 bdrv_iterate_format(bdrv_format_print, NULL);
938 fprintf(stderr, "\n");
939 return NULL;
940 }
941 drv = bdrv_find_whitelisted_format(buf);
942 if (!drv) {
943 fprintf(stderr, "qemu: '%s' invalid format\n", buf);
944 return NULL;
945 }
946 }
947
948 on_write_error = BLOCK_ERR_STOP_ENOSPC;
949 if ((buf = qemu_opt_get(opts, "werror")) != NULL) {
950 if (type != IF_IDE && type != IF_SCSI && type != IF_VIRTIO) {
951 fprintf(stderr, "werror is no supported by this format\n");
952 return NULL;
953 }
954
955 on_write_error = parse_block_error_action(buf, 0);
956 if (on_write_error < 0) {
957 return NULL;
958 }
959 }
960
961 on_read_error = BLOCK_ERR_REPORT;
962 if ((buf = qemu_opt_get(opts, "rerror")) != NULL) {
963 if (type != IF_IDE && type != IF_VIRTIO) {
964 fprintf(stderr, "rerror is no supported by this format\n");
965 return NULL;
966 }
967
968 on_read_error = parse_block_error_action(buf, 1);
969 if (on_read_error < 0) {
970 return NULL;
971 }
972 }
973
974 if ((devaddr = qemu_opt_get(opts, "addr")) != NULL) {
975 if (type != IF_VIRTIO) {
976 fprintf(stderr, "addr is not supported\n");
977 return NULL;
978 }
979 }
980
981 /* compute bus and unit according index */
982
983 if (index != -1) {
984 if (bus_id != 0 || unit_id != -1) {
985 fprintf(stderr,
986 "qemu: index cannot be used with bus and unit\n");
987 return NULL;
988 }
989 if (max_devs == 0)
990 {
991 unit_id = index;
992 bus_id = 0;
993 } else {
994 unit_id = index % max_devs;
995 bus_id = index / max_devs;
996 }
997 }
998
999 /* if user doesn't specify a unit_id,
1000 * try to find the first free
1001 */
1002
1003 if (unit_id == -1) {
1004 unit_id = 0;
1005 while (drive_get(type, bus_id, unit_id) != NULL) {
1006 unit_id++;
1007 if (max_devs && unit_id >= max_devs) {
1008 unit_id -= max_devs;
1009 bus_id++;
1010 }
1011 }
1012 }
1013
1014 /* check unit id */
1015
1016 if (max_devs && unit_id >= max_devs) {
1017 fprintf(stderr, "qemu: unit %d too big (max is %d)\n",
1018 unit_id, max_devs - 1);
1019 return NULL;
1020 }
1021
1022 /*
1023 * ignore multiple definitions
1024 */
1025
1026 if (drive_get(type, bus_id, unit_id) != NULL) {
1027 *fatal_error = 0;
1028 return NULL;
1029 }
1030
1031 /* init */
1032
1033 dinfo = qemu_mallocz(sizeof(*dinfo));
1034 if ((buf = qemu_opts_id(opts)) != NULL) {
1035 dinfo->id = qemu_strdup(buf);
1036 } else {
1037 /* no id supplied -> create one */
1038 dinfo->id = qemu_mallocz(32);
1039 if (type == IF_IDE || type == IF_SCSI)
1040 mediastr = (media == MEDIA_CDROM) ? "-cd" : "-hd";
1041 if (max_devs)
1042 snprintf(dinfo->id, 32, "%s%i%s%i",
1043 devname, bus_id, mediastr, unit_id);
1044 else
1045 snprintf(dinfo->id, 32, "%s%s%i",
1046 devname, mediastr, unit_id);
1047 }
1048 dinfo->bdrv = bdrv_new(dinfo->id);
1049 dinfo->devaddr = devaddr;
1050 dinfo->type = type;
1051 dinfo->bus = bus_id;
1052 dinfo->unit = unit_id;
1053 dinfo->on_read_error = on_read_error;
1054 dinfo->on_write_error = on_write_error;
1055 dinfo->opts = opts;
1056 if (serial)
1057 strncpy(dinfo->serial, serial, sizeof(serial));
1058 QTAILQ_INSERT_TAIL(&drives, dinfo, next);
1059
1060 switch(type) {
1061 case IF_IDE:
1062 case IF_SCSI:
1063 case IF_XEN:
1064 case IF_NONE:
1065 switch(media) {
1066 case MEDIA_DISK:
1067 if (cyls != 0) {
1068 bdrv_set_geometry_hint(dinfo->bdrv, cyls, heads, secs);
1069 bdrv_set_translation_hint(dinfo->bdrv, translation);
1070 }
1071 break;
1072 case MEDIA_CDROM:
1073 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_CDROM);
1074 break;
1075 }
1076 break;
1077 case IF_SD:
1078 /* FIXME: This isn't really a floppy, but it's a reasonable
1079 approximation. */
1080 case IF_FLOPPY:
1081 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_FLOPPY);
1082 break;
1083 case IF_PFLASH:
1084 case IF_MTD:
1085 break;
1086 case IF_VIRTIO:
1087 /* add virtio block device */
1088 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
1089 qemu_opt_set(opts, "driver", "virtio-blk-pci");
1090 qemu_opt_set(opts, "drive", dinfo->id);
1091 if (devaddr)
1092 qemu_opt_set(opts, "addr", devaddr);
1093 break;
1094 case IF_COUNT:
1095 abort();
1096 }
1097 if (!file) {
1098 *fatal_error = 0;
1099 return NULL;
1100 }
1101 if (snapshot) {
1102 /* always use write-back with snapshot */
1103 bdrv_flags &= ~BDRV_O_CACHE_MASK;
1104 bdrv_flags |= (BDRV_O_SNAPSHOT|BDRV_O_CACHE_WB);
1105 }
1106
1107 if (media == MEDIA_CDROM) {
1108 /* CDROM is fine for any interface, don't check. */
1109 ro = 1;
1110 } else if (ro == 1) {
1111 if (type != IF_SCSI && type != IF_VIRTIO && type != IF_FLOPPY) {
1112 fprintf(stderr, "qemu: readonly flag not supported for drive with this interface\n");
1113 return NULL;
1114 }
1115 }
1116
1117 bdrv_flags |= ro ? 0 : BDRV_O_RDWR;
1118
1119 if (bdrv_open(dinfo->bdrv, file, bdrv_flags, drv) < 0) {
1120 fprintf(stderr, "qemu: could not open disk image %s: %s\n",
1121 file, strerror(errno));
1122 return NULL;
1123 }
1124
1125 if (bdrv_key_required(dinfo->bdrv))
1126 autostart = 0;
1127 *fatal_error = 0;
1128 return dinfo;
1129 }
1130
1131 static int drive_init_func(QemuOpts *opts, void *opaque)
1132 {
1133 QEMUMachine *machine = opaque;
1134 int fatal_error = 0;
1135
1136 if (drive_init(opts, machine, &fatal_error) == NULL) {
1137 if (fatal_error)
1138 return 1;
1139 }
1140 return 0;
1141 }
1142
1143 static int drive_enable_snapshot(QemuOpts *opts, void *opaque)
1144 {
1145 if (NULL == qemu_opt_get(opts, "snapshot")) {
1146 qemu_opt_set(opts, "snapshot", "on");
1147 }
1148 return 0;
1149 }
1150
1151 void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
1152 {
1153 boot_set_handler = func;
1154 boot_set_opaque = opaque;
1155 }
1156
1157 int qemu_boot_set(const char *boot_devices)
1158 {
1159 if (!boot_set_handler) {
1160 return -EINVAL;
1161 }
1162 return boot_set_handler(boot_set_opaque, boot_devices);
1163 }
1164
1165 static void validate_bootdevices(char *devices)
1166 {
1167 /* We just do some generic consistency checks */
1168 const char *p;
1169 int bitmap = 0;
1170
1171 for (p = devices; *p != '\0'; p++) {
1172 /* Allowed boot devices are:
1173 * a-b: floppy disk drives
1174 * c-f: IDE disk drives
1175 * g-m: machine implementation dependant drives
1176 * n-p: network devices
1177 * It's up to each machine implementation to check if the given boot
1178 * devices match the actual hardware implementation and firmware
1179 * features.
1180 */
1181 if (*p < 'a' || *p > 'p') {
1182 fprintf(stderr, "Invalid boot device '%c'\n", *p);
1183 exit(1);
1184 }
1185 if (bitmap & (1 << (*p - 'a'))) {
1186 fprintf(stderr, "Boot device '%c' was given twice\n", *p);
1187 exit(1);
1188 }
1189 bitmap |= 1 << (*p - 'a');
1190 }
1191 }
1192
1193 static void restore_boot_devices(void *opaque)
1194 {
1195 char *standard_boot_devices = opaque;
1196
1197 qemu_boot_set(standard_boot_devices);
1198
1199 qemu_unregister_reset(restore_boot_devices, standard_boot_devices);
1200 qemu_free(standard_boot_devices);
1201 }
1202
1203 static void numa_add(const char *optarg)
1204 {
1205 char option[128];
1206 char *endptr;
1207 unsigned long long value, endvalue;
1208 int nodenr;
1209
1210 optarg = get_opt_name(option, 128, optarg, ',') + 1;
1211 if (!strcmp(option, "node")) {
1212 if (get_param_value(option, 128, "nodeid", optarg) == 0) {
1213 nodenr = nb_numa_nodes;
1214 } else {
1215 nodenr = strtoull(option, NULL, 10);
1216 }
1217
1218 if (get_param_value(option, 128, "mem", optarg) == 0) {
1219 node_mem[nodenr] = 0;
1220 } else {
1221 value = strtoull(option, &endptr, 0);
1222 switch (*endptr) {
1223 case 0: case 'M': case 'm':
1224 value <<= 20;
1225 break;
1226 case 'G': case 'g':
1227 value <<= 30;
1228 break;
1229 }
1230 node_mem[nodenr] = value;
1231 }
1232 if (get_param_value(option, 128, "cpus", optarg) == 0) {
1233 node_cpumask[nodenr] = 0;
1234 } else {
1235 value = strtoull(option, &endptr, 10);
1236 if (value >= 64) {
1237 value = 63;
1238 fprintf(stderr, "only 64 CPUs in NUMA mode supported.\n");
1239 } else {
1240 if (*endptr == '-') {
1241 endvalue = strtoull(endptr+1, &endptr, 10);
1242 if (endvalue >= 63) {
1243 endvalue = 62;
1244 fprintf(stderr,
1245 "only 63 CPUs in NUMA mode supported.\n");
1246 }
1247 value = (2ULL << endvalue) - (1ULL << value);
1248 } else {
1249 value = 1ULL << value;
1250 }
1251 }
1252 node_cpumask[nodenr] = value;
1253 }
1254 nb_numa_nodes++;
1255 }
1256 return;
1257 }
1258
1259 static void smp_parse(const char *optarg)
1260 {
1261 int smp, sockets = 0, threads = 0, cores = 0;
1262 char *endptr;
1263 char option[128];
1264
1265 smp = strtoul(optarg, &endptr, 10);
1266 if (endptr != optarg) {
1267 if (*endptr == ',') {
1268 endptr++;
1269 }
1270 }
1271 if (get_param_value(option, 128, "sockets", endptr) != 0)
1272 sockets = strtoull(option, NULL, 10);
1273 if (get_param_value(option, 128, "cores", endptr) != 0)
1274 cores = strtoull(option, NULL, 10);
1275 if (get_param_value(option, 128, "threads", endptr) != 0)
1276 threads = strtoull(option, NULL, 10);
1277 if (get_param_value(option, 128, "maxcpus", endptr) != 0)
1278 max_cpus = strtoull(option, NULL, 10);
1279
1280 /* compute missing values, prefer sockets over cores over threads */
1281 if (smp == 0 || sockets == 0) {
1282 sockets = sockets > 0 ? sockets : 1;
1283 cores = cores > 0 ? cores : 1;
1284 threads = threads > 0 ? threads : 1;
1285 if (smp == 0) {
1286 smp = cores * threads * sockets;
1287 }
1288 } else {
1289 if (cores == 0) {
1290 threads = threads > 0 ? threads : 1;
1291 cores = smp / (sockets * threads);
1292 } else {
1293 if (sockets) {
1294 threads = smp / (cores * sockets);
1295 }
1296 }
1297 }
1298 smp_cpus = smp;
1299 smp_cores = cores > 0 ? cores : 1;
1300 smp_threads = threads > 0 ? threads : 1;
1301 if (max_cpus == 0)
1302 max_cpus = smp_cpus;
1303 }
1304
1305 /***********************************************************/
1306 /* USB devices */
1307
1308 static int usb_device_add(const char *devname, int is_hotplug)
1309 {
1310 const char *p;
1311 USBDevice *dev = NULL;
1312
1313 if (!usb_enabled)
1314 return -1;
1315
1316 /* drivers with .usbdevice_name entry in USBDeviceInfo */
1317 dev = usbdevice_create(devname);
1318 if (dev)
1319 goto done;
1320
1321 /* the other ones */
1322 if (strstart(devname, "host:", &p)) {
1323 dev = usb_host_device_open(p);
1324 } else if (!strcmp(devname, "bt") || strstart(devname, "bt:", &p)) {
1325 dev = usb_bt_init(devname[2] ? hci_init(p) :
1326 bt_new_hci(qemu_find_bt_vlan(0)));
1327 } else {
1328 return -1;
1329 }
1330 if (!dev)
1331 return -1;
1332
1333 done:
1334 return 0;
1335 }
1336
1337 static int usb_device_del(const char *devname)
1338 {
1339 int bus_num, addr;
1340 const char *p;
1341
1342 if (strstart(devname, "host:", &p))
1343 return usb_host_device_close(p);
1344
1345 if (!usb_enabled)
1346 return -1;
1347
1348 p = strchr(devname, '.');
1349 if (!p)
1350 return -1;
1351 bus_num = strtoul(devname, NULL, 0);
1352 addr = strtoul(p + 1, NULL, 0);
1353
1354 return usb_device_delete_addr(bus_num, addr);
1355 }
1356
1357 static int usb_parse(const char *cmdline)
1358 {
1359 int r;
1360 r = usb_device_add(cmdline, 0);
1361 if (r < 0) {
1362 fprintf(stderr, "qemu: could not add USB device '%s'\n", cmdline);
1363 }
1364 return r;
1365 }
1366
1367 void do_usb_add(Monitor *mon, const QDict *qdict)
1368 {
1369 const char *devname = qdict_get_str(qdict, "devname");
1370 if (usb_device_add(devname, 1) < 0) {
1371 error_report("could not add USB device '%s'", devname);
1372 }
1373 }
1374
1375 void do_usb_del(Monitor *mon, const QDict *qdict)
1376 {
1377 const char *devname = qdict_get_str(qdict, "devname");
1378 if (usb_device_del(devname) < 0) {
1379 error_report("could not delete USB device '%s'", devname);
1380 }
1381 }
1382
1383 /***********************************************************/
1384 /* PCMCIA/Cardbus */
1385
1386 static struct pcmcia_socket_entry_s {
1387 PCMCIASocket *socket;
1388 struct pcmcia_socket_entry_s *next;
1389 } *pcmcia_sockets = 0;
1390
1391 void pcmcia_socket_register(PCMCIASocket *socket)
1392 {
1393 struct pcmcia_socket_entry_s *entry;
1394
1395 entry = qemu_malloc(sizeof(struct pcmcia_socket_entry_s));
1396 entry->socket = socket;
1397 entry->next = pcmcia_sockets;
1398 pcmcia_sockets = entry;
1399 }
1400
1401 void pcmcia_socket_unregister(PCMCIASocket *socket)
1402 {
1403 struct pcmcia_socket_entry_s *entry, **ptr;
1404
1405 ptr = &pcmcia_sockets;
1406 for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
1407 if (entry->socket == socket) {
1408 *ptr = entry->next;
1409 qemu_free(entry);
1410 }
1411 }
1412
1413 void pcmcia_info(Monitor *mon)
1414 {
1415 struct pcmcia_socket_entry_s *iter;
1416
1417 if (!pcmcia_sockets)
1418 monitor_printf(mon, "No PCMCIA sockets\n");
1419
1420 for (iter = pcmcia_sockets; iter; iter = iter->next)
1421 monitor_printf(mon, "%s: %s\n", iter->socket->slot_string,
1422 iter->socket->attached ? iter->socket->card_string :
1423 "Empty");
1424 }
1425
1426 /***********************************************************/
1427 /* I/O handling */
1428
1429 typedef struct IOHandlerRecord {
1430 int fd;
1431 IOCanReadHandler *fd_read_poll;
1432 IOHandler *fd_read;
1433 IOHandler *fd_write;
1434 int deleted;
1435 void *opaque;
1436 /* temporary data */
1437 struct pollfd *ufd;
1438 QLIST_ENTRY(IOHandlerRecord) next;
1439 } IOHandlerRecord;
1440
1441 static QLIST_HEAD(, IOHandlerRecord) io_handlers =
1442 QLIST_HEAD_INITIALIZER(io_handlers);
1443
1444
1445 /* XXX: fd_read_poll should be suppressed, but an API change is
1446 necessary in the character devices to suppress fd_can_read(). */
1447 int qemu_set_fd_handler2(int fd,
1448 IOCanReadHandler *fd_read_poll,
1449 IOHandler *fd_read,
1450 IOHandler *fd_write,
1451 void *opaque)
1452 {
1453 IOHandlerRecord *ioh;
1454
1455 if (!fd_read && !fd_write) {
1456 QLIST_FOREACH(ioh, &io_handlers, next) {
1457 if (ioh->fd == fd) {
1458 ioh->deleted = 1;
1459 break;
1460 }
1461 }
1462 } else {
1463 QLIST_FOREACH(ioh, &io_handlers, next) {
1464 if (ioh->fd == fd)
1465 goto found;
1466 }
1467 ioh = qemu_mallocz(sizeof(IOHandlerRecord));
1468 QLIST_INSERT_HEAD(&io_handlers, ioh, next);
1469 found:
1470 ioh->fd = fd;
1471 ioh->fd_read_poll = fd_read_poll;
1472 ioh->fd_read = fd_read;
1473 ioh->fd_write = fd_write;
1474 ioh->opaque = opaque;
1475 ioh->deleted = 0;
1476 }
1477 return 0;
1478 }
1479
1480 int qemu_set_fd_handler(int fd,
1481 IOHandler *fd_read,
1482 IOHandler *fd_write,
1483 void *opaque)
1484 {
1485 return qemu_set_fd_handler2(fd, NULL, fd_read, fd_write, opaque);
1486 }
1487
1488 #ifdef _WIN32
1489 /***********************************************************/
1490 /* Polling handling */
1491
1492 typedef struct PollingEntry {
1493 PollingFunc *func;
1494 void *opaque;
1495 struct PollingEntry *next;
1496 } PollingEntry;
1497
1498 static PollingEntry *first_polling_entry;
1499
1500 int qemu_add_polling_cb(PollingFunc *func, void *opaque)
1501 {
1502 PollingEntry **ppe, *pe;
1503 pe = qemu_mallocz(sizeof(PollingEntry));
1504 pe->func = func;
1505 pe->opaque = opaque;
1506 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next);
1507 *ppe = pe;
1508 return 0;
1509 }
1510
1511 void qemu_del_polling_cb(PollingFunc *func, void *opaque)
1512 {
1513 PollingEntry **ppe, *pe;
1514 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next) {
1515 pe = *ppe;
1516 if (pe->func == func && pe->opaque == opaque) {
1517 *ppe = pe->next;
1518 qemu_free(pe);
1519 break;
1520 }
1521 }
1522 }
1523
1524 /***********************************************************/
1525 /* Wait objects support */
1526 typedef struct WaitObjects {
1527 int num;
1528 HANDLE events[MAXIMUM_WAIT_OBJECTS + 1];
1529 WaitObjectFunc *func[MAXIMUM_WAIT_OBJECTS + 1];
1530 void *opaque[MAXIMUM_WAIT_OBJECTS + 1];
1531 } WaitObjects;
1532
1533 static WaitObjects wait_objects = {0};
1534
1535 int qemu_add_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
1536 {
1537 WaitObjects *w = &wait_objects;
1538
1539 if (w->num >= MAXIMUM_WAIT_OBJECTS)
1540 return -1;
1541 w->events[w->num] = handle;
1542 w->func[w->num] = func;
1543 w->opaque[w->num] = opaque;
1544 w->num++;
1545 return 0;
1546 }
1547
1548 void qemu_del_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
1549 {
1550 int i, found;
1551 WaitObjects *w = &wait_objects;
1552
1553 found = 0;
1554 for (i = 0; i < w->num; i++) {
1555 if (w->events[i] == handle)
1556 found = 1;
1557 if (found) {
1558 w->events[i] = w->events[i + 1];
1559 w->func[i] = w->func[i + 1];
1560 w->opaque[i] = w->opaque[i + 1];
1561 }
1562 }
1563 if (found)
1564 w->num--;
1565 }
1566 #endif
1567
1568 /***********************************************************/
1569 /* machine registration */
1570
1571 static QEMUMachine *first_machine = NULL;
1572 QEMUMachine *current_machine = NULL;
1573
1574 int qemu_register_machine(QEMUMachine *m)
1575 {
1576 QEMUMachine **pm;
1577 pm = &first_machine;
1578 while (*pm != NULL)
1579 pm = &(*pm)->next;
1580 m->next = NULL;
1581 *pm = m;
1582 return 0;
1583 }
1584
1585 static QEMUMachine *find_machine(const char *name)
1586 {
1587 QEMUMachine *m;
1588
1589 for(m = first_machine; m != NULL; m = m->next) {
1590 if (!strcmp(m->name, name))
1591 return m;
1592 if (m->alias && !strcmp(m->alias, name))
1593 return m;
1594 }
1595 return NULL;
1596 }
1597
1598 static QEMUMachine *find_default_machine(void)
1599 {
1600 QEMUMachine *m;
1601
1602 for(m = first_machine; m != NULL; m = m->next) {
1603 if (m->is_default) {
1604 return m;
1605 }
1606 }
1607 return NULL;
1608 }
1609
1610 /***********************************************************/
1611 /* main execution loop */
1612
1613 static void gui_update(void *opaque)
1614 {
1615 uint64_t interval = GUI_REFRESH_INTERVAL;
1616 DisplayState *ds = opaque;
1617 DisplayChangeListener *dcl = ds->listeners;
1618
1619 qemu_flush_coalesced_mmio_buffer();
1620 dpy_refresh(ds);
1621
1622 while (dcl != NULL) {
1623 if (dcl->gui_timer_interval &&
1624 dcl->gui_timer_interval < interval)
1625 interval = dcl->gui_timer_interval;
1626 dcl = dcl->next;
1627 }
1628 qemu_mod_timer(ds->gui_timer, interval + qemu_get_clock(rt_clock));
1629 }
1630
1631 static void nographic_update(void *opaque)
1632 {
1633 uint64_t interval = GUI_REFRESH_INTERVAL;
1634
1635 qemu_flush_coalesced_mmio_buffer();
1636 qemu_mod_timer(nographic_timer, interval + qemu_get_clock(rt_clock));
1637 }
1638
1639 struct vm_change_state_entry {
1640 VMChangeStateHandler *cb;
1641 void *opaque;
1642 QLIST_ENTRY (vm_change_state_entry) entries;
1643 };
1644
1645 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1646
1647 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1648 void *opaque)
1649 {
1650 VMChangeStateEntry *e;
1651
1652 e = qemu_mallocz(sizeof (*e));
1653
1654 e->cb = cb;
1655 e->opaque = opaque;
1656 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1657 return e;
1658 }
1659
1660 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1661 {
1662 QLIST_REMOVE (e, entries);
1663 qemu_free (e);
1664 }
1665
1666 void vm_state_notify(int running, int reason)
1667 {
1668 VMChangeStateEntry *e;
1669
1670 for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
1671 e->cb(e->opaque, running, reason);
1672 }
1673 }
1674
1675 void vm_start(void)
1676 {
1677 if (!vm_running) {
1678 cpu_enable_ticks();
1679 vm_running = 1;
1680 vm_state_notify(1, 0);
1681 resume_all_vcpus();
1682 }
1683 }
1684
1685 /* reset/shutdown handler */
1686
1687 typedef struct QEMUResetEntry {
1688 QTAILQ_ENTRY(QEMUResetEntry) entry;
1689 QEMUResetHandler *func;
1690 void *opaque;
1691 } QEMUResetEntry;
1692
1693 static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
1694 QTAILQ_HEAD_INITIALIZER(reset_handlers);
1695 static int reset_requested;
1696 static int shutdown_requested;
1697 static int powerdown_requested;
1698 int debug_requested;
1699 int vmstop_requested;
1700
1701 int qemu_shutdown_requested(void)
1702 {
1703 int r = shutdown_requested;
1704 shutdown_requested = 0;
1705 return r;
1706 }
1707
1708 int qemu_reset_requested(void)
1709 {
1710 int r = reset_requested;
1711 reset_requested = 0;
1712 return r;
1713 }
1714
1715 int qemu_powerdown_requested(void)
1716 {
1717 int r = powerdown_requested;
1718 powerdown_requested = 0;
1719 return r;
1720 }
1721
1722 static int qemu_debug_requested(void)
1723 {
1724 int r = debug_requested;
1725 debug_requested = 0;
1726 return r;
1727 }
1728
1729 static int qemu_vmstop_requested(void)
1730 {
1731 int r = vmstop_requested;
1732 vmstop_requested = 0;
1733 return r;
1734 }
1735
1736 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
1737 {
1738 QEMUResetEntry *re = qemu_mallocz(sizeof(QEMUResetEntry));
1739
1740 re->func = func;
1741 re->opaque = opaque;
1742 QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
1743 }
1744
1745 void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
1746 {
1747 QEMUResetEntry *re;
1748
1749 QTAILQ_FOREACH(re, &reset_handlers, entry) {
1750 if (re->func == func && re->opaque == opaque) {
1751 QTAILQ_REMOVE(&reset_handlers, re, entry);
1752 qemu_free(re);
1753 return;
1754 }
1755 }
1756 }
1757
1758 void qemu_system_reset(void)
1759 {
1760 QEMUResetEntry *re, *nre;
1761
1762 /* reset all devices */
1763 QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
1764 re->func(re->opaque);
1765 }
1766 monitor_protocol_event(QEVENT_RESET, NULL);
1767 cpu_synchronize_all_post_reset();
1768 }
1769
1770 void qemu_system_reset_request(void)
1771 {
1772 if (no_reboot) {
1773 shutdown_requested = 1;
1774 } else {
1775 reset_requested = 1;
1776 }
1777 qemu_notify_event();
1778 }
1779
1780 void qemu_system_shutdown_request(void)
1781 {
1782 shutdown_requested = 1;
1783 qemu_notify_event();
1784 }
1785
1786 void qemu_system_powerdown_request(void)
1787 {
1788 powerdown_requested = 1;
1789 qemu_notify_event();
1790 }
1791
1792 #ifdef _WIN32
1793 static void host_main_loop_wait(int *timeout)
1794 {
1795 int ret, ret2, i;
1796 PollingEntry *pe;
1797
1798
1799 /* XXX: need to suppress polling by better using win32 events */
1800 ret = 0;
1801 for(pe = first_polling_entry; pe != NULL; pe = pe->next) {
1802 ret |= pe->func(pe->opaque);
1803 }
1804 if (ret == 0) {
1805 int err;
1806 WaitObjects *w = &wait_objects;
1807
1808 ret = WaitForMultipleObjects(w->num, w->events, FALSE, *timeout);
1809 if (WAIT_OBJECT_0 + 0 <= ret && ret <= WAIT_OBJECT_0 + w->num - 1) {
1810 if (w->func[ret - WAIT_OBJECT_0])
1811 w->func[ret - WAIT_OBJECT_0](w->opaque[ret - WAIT_OBJECT_0]);
1812
1813 /* Check for additional signaled events */
1814 for(i = (ret - WAIT_OBJECT_0 + 1); i < w->num; i++) {
1815
1816 /* Check if event is signaled */
1817 ret2 = WaitForSingleObject(w->events[i], 0);
1818 if(ret2 == WAIT_OBJECT_0) {
1819 if (w->func[i])
1820 w->func[i](w->opaque[i]);
1821 } else if (ret2 == WAIT_TIMEOUT) {
1822 } else {
1823 err = GetLastError();
1824 fprintf(stderr, "WaitForSingleObject error %d %d\n", i, err);
1825 }
1826 }
1827 } else if (ret == WAIT_TIMEOUT) {
1828 } else {
1829 err = GetLastError();
1830 fprintf(stderr, "WaitForMultipleObjects error %d %d\n", ret, err);
1831 }
1832 }
1833
1834 *timeout = 0;
1835 }
1836 #else
1837 static void host_main_loop_wait(int *timeout)
1838 {
1839 }
1840 #endif
1841
1842 void main_loop_wait(int nonblocking)
1843 {
1844 IOHandlerRecord *ioh;
1845 fd_set rfds, wfds, xfds;
1846 int ret, nfds;
1847 struct timeval tv;
1848 int timeout;
1849
1850 if (nonblocking)
1851 timeout = 0;
1852 else {
1853 timeout = qemu_calculate_timeout();
1854 qemu_bh_update_timeout(&timeout);
1855 }
1856
1857 host_main_loop_wait(&timeout);
1858
1859 /* poll any events */
1860 /* XXX: separate device handlers from system ones */
1861 nfds = -1;
1862 FD_ZERO(&rfds);
1863 FD_ZERO(&wfds);
1864 FD_ZERO(&xfds);
1865 QLIST_FOREACH(ioh, &io_handlers, next) {
1866 if (ioh->deleted)
1867 continue;
1868 if (ioh->fd_read &&
1869 (!ioh->fd_read_poll ||
1870 ioh->fd_read_poll(ioh->opaque) != 0)) {
1871 FD_SET(ioh->fd, &rfds);
1872 if (ioh->fd > nfds)
1873 nfds = ioh->fd;
1874 }
1875 if (ioh->fd_write) {
1876 FD_SET(ioh->fd, &wfds);
1877 if (ioh->fd > nfds)
1878 nfds = ioh->fd;
1879 }
1880 }
1881
1882 tv.tv_sec = timeout / 1000;
1883 tv.tv_usec = (timeout % 1000) * 1000;
1884
1885 slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
1886
1887 qemu_mutex_unlock_iothread();
1888 ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
1889 qemu_mutex_lock_iothread();
1890 if (ret > 0) {
1891 IOHandlerRecord *pioh;
1892
1893 QLIST_FOREACH_SAFE(ioh, &io_handlers, next, pioh) {
1894 if (ioh->deleted) {
1895 QLIST_REMOVE(ioh, next);
1896 qemu_free(ioh);
1897 continue;
1898 }
1899 if (ioh->fd_read && FD_ISSET(ioh->fd, &rfds)) {
1900 ioh->fd_read(ioh->opaque);
1901 }
1902 if (ioh->fd_write && FD_ISSET(ioh->fd, &wfds)) {
1903 ioh->fd_write(ioh->opaque);
1904 }
1905 }
1906 }
1907
1908 slirp_select_poll(&rfds, &wfds, &xfds, (ret < 0));
1909
1910 qemu_run_all_timers();
1911
1912 /* Check bottom-halves last in case any of the earlier events triggered
1913 them. */
1914 qemu_bh_poll();
1915
1916 }
1917
1918 static int vm_can_run(void)
1919 {
1920 if (powerdown_requested)
1921 return 0;
1922 if (reset_requested)
1923 return 0;
1924 if (shutdown_requested)
1925 return 0;
1926 if (debug_requested)
1927 return 0;
1928 return 1;
1929 }
1930
1931 qemu_irq qemu_system_powerdown;
1932
1933 static void main_loop(void)
1934 {
1935 int r;
1936
1937 qemu_main_loop_start();
1938
1939 for (;;) {
1940 do {
1941 bool nonblocking = false;
1942 #ifdef CONFIG_PROFILER
1943 int64_t ti;
1944 #endif
1945 #ifndef CONFIG_IOTHREAD
1946 nonblocking = tcg_cpu_exec();
1947 #endif
1948 #ifdef CONFIG_PROFILER
1949 ti = profile_getclock();
1950 #endif
1951 main_loop_wait(nonblocking);
1952 #ifdef CONFIG_PROFILER
1953 dev_time += profile_getclock() - ti;
1954 #endif
1955 } while (vm_can_run());
1956
1957 if ((r = qemu_debug_requested())) {
1958 vm_stop(r);
1959 }
1960 if (qemu_shutdown_requested()) {
1961 monitor_protocol_event(QEVENT_SHUTDOWN, NULL);
1962 if (no_shutdown) {
1963 vm_stop(0);
1964 no_shutdown = 0;
1965 } else
1966 break;
1967 }
1968 if (qemu_reset_requested()) {
1969 pause_all_vcpus();
1970 qemu_system_reset();
1971 resume_all_vcpus();
1972 }
1973 if (qemu_powerdown_requested()) {
1974 monitor_protocol_event(QEVENT_POWERDOWN, NULL);
1975 qemu_irq_raise(qemu_system_powerdown);
1976 }
1977 if ((r = qemu_vmstop_requested())) {
1978 vm_stop(r);
1979 }
1980 }
1981 pause_all_vcpus();
1982 }
1983
1984 static void version(void)
1985 {
1986 printf("QEMU PC emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
1987 }
1988
1989 static void help(int exitcode)
1990 {
1991 const char *options_help =
1992 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
1993 opt_help
1994 #define DEFHEADING(text) stringify(text) "\n"
1995 #include "qemu-options.h"
1996 #undef DEF
1997 #undef DEFHEADING
1998 #undef GEN_DOCS
1999 ;
2000 version();
2001 printf("usage: %s [options] [disk_image]\n"
2002 "\n"
2003 "'disk_image' is a raw hard image image for IDE hard disk 0\n"
2004 "\n"
2005 "%s\n"
2006 "During emulation, the following keys are useful:\n"
2007 "ctrl-alt-f toggle full screen\n"
2008 "ctrl-alt-n switch to virtual console 'n'\n"
2009 "ctrl-alt toggle mouse and keyboard grab\n"
2010 "\n"
2011 "When using -nographic, press 'ctrl-a h' to get some help.\n",
2012 "qemu",
2013 options_help);
2014 exit(exitcode);
2015 }
2016
2017 #define HAS_ARG 0x0001
2018
2019 enum {
2020 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
2021 opt_enum,
2022 #define DEFHEADING(text)
2023 #include "qemu-options.h"
2024 #undef DEF
2025 #undef DEFHEADING
2026 #undef GEN_DOCS
2027 };
2028
2029 typedef struct QEMUOption {
2030 const char *name;
2031 int flags;
2032 int index;
2033 uint32_t arch_mask;
2034 } QEMUOption;
2035
2036 static const QEMUOption qemu_options[] = {
2037 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
2038 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
2039 { option, opt_arg, opt_enum, arch_mask },
2040 #define DEFHEADING(text)
2041 #include "qemu-options.h"
2042 #undef DEF
2043 #undef DEFHEADING
2044 #undef GEN_DOCS
2045 { NULL },
2046 };
2047 static void select_vgahw (const char *p)
2048 {
2049 const char *opts;
2050
2051 default_vga = 0;
2052 vga_interface_type = VGA_NONE;
2053 if (strstart(p, "std", &opts)) {
2054 vga_interface_type = VGA_STD;
2055 } else if (strstart(p, "cirrus", &opts)) {
2056 vga_interface_type = VGA_CIRRUS;
2057 } else if (strstart(p, "vmware", &opts)) {
2058 vga_interface_type = VGA_VMWARE;
2059 } else if (strstart(p, "xenfb", &opts)) {
2060 vga_interface_type = VGA_XENFB;
2061 } else if (!strstart(p, "none", &opts)) {
2062 invalid_vga:
2063 fprintf(stderr, "Unknown vga type: %s\n", p);
2064 exit(1);
2065 }
2066 while (*opts) {
2067 const char *nextopt;
2068
2069 if (strstart(opts, ",retrace=", &nextopt)) {
2070 opts = nextopt;
2071 if (strstart(opts, "dumb", &nextopt))
2072 vga_retrace_method = VGA_RETRACE_DUMB;
2073 else if (strstart(opts, "precise", &nextopt))
2074 vga_retrace_method = VGA_RETRACE_PRECISE;
2075 else goto invalid_vga;
2076 } else goto invalid_vga;
2077 opts = nextopt;
2078 }
2079 }
2080
2081 static int balloon_parse(const char *arg)
2082 {
2083 QemuOpts *opts;
2084
2085 if (strcmp(arg, "none") == 0) {
2086 return 0;
2087 }
2088
2089 if (!strncmp(arg, "virtio", 6)) {
2090 if (arg[6] == ',') {
2091 /* have params -> parse them */
2092 opts = qemu_opts_parse(&qemu_device_opts, arg+7, 0);
2093 if (!opts)
2094 return -1;
2095 } else {
2096 /* create empty opts */
2097 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2098 }
2099 qemu_opt_set(opts, "driver", "virtio-balloon-pci");
2100 return 0;
2101 }
2102
2103 return -1;
2104 }
2105
2106 #ifdef _WIN32
2107 static BOOL WINAPI qemu_ctrl_handler(DWORD type)
2108 {
2109 exit(STATUS_CONTROL_C_EXIT);
2110 return TRUE;
2111 }
2112 #endif
2113
2114 #ifndef _WIN32
2115
2116 static void termsig_handler(int signal)
2117 {
2118 qemu_system_shutdown_request();
2119 }
2120
2121 static void sigchld_handler(int signal)
2122 {
2123 waitpid(-1, NULL, WNOHANG);
2124 }
2125
2126 static void sighandler_setup(void)
2127 {
2128 struct sigaction act;
2129
2130 memset(&act, 0, sizeof(act));
2131 act.sa_handler = termsig_handler;
2132 sigaction(SIGINT, &act, NULL);
2133 sigaction(SIGHUP, &act, NULL);
2134 sigaction(SIGTERM, &act, NULL);
2135
2136 act.sa_handler = sigchld_handler;
2137 act.sa_flags = SA_NOCLDSTOP;
2138 sigaction(SIGCHLD, &act, NULL);
2139 }
2140
2141 #endif
2142
2143 #ifdef _WIN32
2144 /* Look for support files in the same directory as the executable. */
2145 static char *find_datadir(const char *argv0)
2146 {
2147 char *p;
2148 char buf[MAX_PATH];
2149 DWORD len;
2150
2151 len = GetModuleFileName(NULL, buf, sizeof(buf) - 1);
2152 if (len == 0) {
2153 return NULL;
2154 }
2155
2156 buf[len] = 0;
2157 p = buf + len - 1;
2158 while (p != buf && *p != '\\')
2159 p--;
2160 *p = 0;
2161 if (access(buf, R_OK) == 0) {
2162 return qemu_strdup(buf);
2163 }
2164 return NULL;
2165 }
2166 #else /* !_WIN32 */
2167
2168 /* Find a likely location for support files using the location of the binary.
2169 For installed binaries this will be "$bindir/../share/qemu". When
2170 running from the build tree this will be "$bindir/../pc-bios". */
2171 #define SHARE_SUFFIX "/share/qemu"
2172 #define BUILD_SUFFIX "/pc-bios"
2173 static char *find_datadir(const char *argv0)
2174 {
2175 char *dir;
2176 char *p = NULL;
2177 char *res;
2178 char buf[PATH_MAX];
2179 size_t max_len;
2180
2181 #if defined(__linux__)
2182 {
2183 int len;
2184 len = readlink("/proc/self/exe", buf, sizeof(buf) - 1);
2185 if (len > 0) {
2186 buf[len] = 0;
2187 p = buf;
2188 }
2189 }
2190 #elif defined(__FreeBSD__)
2191 {
2192 static int mib[4] = {CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, -1};
2193 size_t len = sizeof(buf) - 1;
2194
2195 *buf = '\0';
2196 if (!sysctl(mib, sizeof(mib)/sizeof(*mib), buf, &len, NULL, 0) &&
2197 *buf) {
2198 buf[sizeof(buf) - 1] = '\0';
2199 p = buf;
2200 }
2201 }
2202 #endif
2203 /* If we don't have any way of figuring out the actual executable
2204 location then try argv[0]. */
2205 if (!p) {
2206 p = realpath(argv0, buf);
2207 if (!p) {
2208 return NULL;
2209 }
2210 }
2211 dir = dirname(p);
2212 dir = dirname(dir);
2213
2214 max_len = strlen(dir) +
2215 MAX(strlen(SHARE_SUFFIX), strlen(BUILD_SUFFIX)) + 1;
2216 res = qemu_mallocz(max_len);
2217 snprintf(res, max_len, "%s%s", dir, SHARE_SUFFIX);
2218 if (access(res, R_OK)) {
2219 snprintf(res, max_len, "%s%s", dir, BUILD_SUFFIX);
2220 if (access(res, R_OK)) {
2221 qemu_free(res);
2222 res = NULL;
2223 }
2224 }
2225
2226 return res;
2227 }
2228 #undef SHARE_SUFFIX
2229 #undef BUILD_SUFFIX
2230 #endif
2231
2232 char *qemu_find_file(int type, const char *name)
2233 {
2234 int len;
2235 const char *subdir;
2236 char *buf;
2237
2238 /* If name contains path separators then try it as a straight path. */
2239 if ((strchr(name, '/') || strchr(name, '\\'))
2240 && access(name, R_OK) == 0) {
2241 return qemu_strdup(name);
2242 }
2243 switch (type) {
2244 case QEMU_FILE_TYPE_BIOS:
2245 subdir = "";
2246 break;
2247 case QEMU_FILE_TYPE_KEYMAP:
2248 subdir = "keymaps/";
2249 break;
2250 default:
2251 abort();
2252 }
2253 len = strlen(data_dir) + strlen(name) + strlen(subdir) + 2;
2254 buf = qemu_mallocz(len);
2255 snprintf(buf, len, "%s/%s%s", data_dir, subdir, name);
2256 if (access(buf, R_OK)) {
2257 qemu_free(buf);
2258 return NULL;
2259 }
2260 return buf;
2261 }
2262
2263 static int device_help_func(QemuOpts *opts, void *opaque)
2264 {
2265 return qdev_device_help(opts);
2266 }
2267
2268 static int device_init_func(QemuOpts *opts, void *opaque)
2269 {
2270 DeviceState *dev;
2271
2272 dev = qdev_device_add(opts);
2273 if (!dev)
2274 return -1;
2275 return 0;
2276 }
2277
2278 static int chardev_init_func(QemuOpts *opts, void *opaque)
2279 {
2280 CharDriverState *chr;
2281
2282 chr = qemu_chr_open_opts(opts, NULL);
2283 if (!chr)
2284 return -1;
2285 return 0;
2286 }
2287
2288 static int mon_init_func(QemuOpts *opts, void *opaque)
2289 {
2290 CharDriverState *chr;
2291 const char *chardev;
2292 const char *mode;
2293 int flags;
2294
2295 mode = qemu_opt_get(opts, "mode");
2296 if (mode == NULL) {
2297 mode = "readline";
2298 }
2299 if (strcmp(mode, "readline") == 0) {
2300 flags = MONITOR_USE_READLINE;
2301 } else if (strcmp(mode, "control") == 0) {
2302 flags = MONITOR_USE_CONTROL;
2303 } else {
2304 fprintf(stderr, "unknown monitor mode \"%s\"\n", mode);
2305 exit(1);
2306 }
2307
2308 if (qemu_opt_get_bool(opts, "default", 0))
2309 flags |= MONITOR_IS_DEFAULT;
2310
2311 chardev = qemu_opt_get(opts, "chardev");
2312 chr = qemu_chr_find(chardev);
2313 if (chr == NULL) {
2314 fprintf(stderr, "chardev \"%s\" not found\n", chardev);
2315 exit(1);
2316 }
2317
2318 monitor_init(chr, flags);
2319 return 0;
2320 }
2321
2322 static void monitor_parse(const char *optarg, const char *mode)
2323 {
2324 static int monitor_device_index = 0;
2325 QemuOpts *opts;
2326 const char *p;
2327 char label[32];
2328 int def = 0;
2329
2330 if (strstart(optarg, "chardev:", &p)) {
2331 snprintf(label, sizeof(label), "%s", p);
2332 } else {
2333 if (monitor_device_index) {
2334 snprintf(label, sizeof(label), "monitor%d",
2335 monitor_device_index);
2336 } else {
2337 snprintf(label, sizeof(label), "monitor");
2338 def = 1;
2339 }
2340 opts = qemu_chr_parse_compat(label, optarg);
2341 if (!opts) {
2342 fprintf(stderr, "parse error: %s\n", optarg);
2343 exit(1);
2344 }
2345 }
2346
2347 opts = qemu_opts_create(&qemu_mon_opts, label, 1);
2348 if (!opts) {
2349 fprintf(stderr, "duplicate chardev: %s\n", label);
2350 exit(1);
2351 }
2352 qemu_opt_set(opts, "mode", mode);
2353 qemu_opt_set(opts, "chardev", label);
2354 if (def)
2355 qemu_opt_set(opts, "default", "on");
2356 monitor_device_index++;
2357 }
2358
2359 struct device_config {
2360 enum {
2361 DEV_USB, /* -usbdevice */
2362 DEV_BT, /* -bt */
2363 DEV_SERIAL, /* -serial */
2364 DEV_PARALLEL, /* -parallel */
2365 DEV_VIRTCON, /* -virtioconsole */
2366 DEV_DEBUGCON, /* -debugcon */
2367 } type;
2368 const char *cmdline;
2369 QTAILQ_ENTRY(device_config) next;
2370 };
2371 QTAILQ_HEAD(, device_config) device_configs = QTAILQ_HEAD_INITIALIZER(device_configs);
2372
2373 static void add_device_config(int type, const char *cmdline)
2374 {
2375 struct device_config *conf;
2376
2377 conf = qemu_mallocz(sizeof(*conf));
2378 conf->type = type;
2379 conf->cmdline = cmdline;
2380 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2381 }
2382
2383 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2384 {
2385 struct device_config *conf;
2386 int rc;
2387
2388 QTAILQ_FOREACH(conf, &device_configs, next) {
2389 if (conf->type != type)
2390 continue;
2391 rc = func(conf->cmdline);
2392 if (0 != rc)
2393 return rc;
2394 }
2395 return 0;
2396 }
2397
2398 static int serial_parse(const char *devname)
2399 {
2400 static int index = 0;
2401 char label[32];
2402
2403 if (strcmp(devname, "none") == 0)
2404 return 0;
2405 if (index == MAX_SERIAL_PORTS) {
2406 fprintf(stderr, "qemu: too many serial ports\n");
2407 exit(1);
2408 }
2409 snprintf(label, sizeof(label), "serial%d", index);
2410 serial_hds[index] = qemu_chr_open(label, devname, NULL);
2411 if (!serial_hds[index]) {
2412 fprintf(stderr, "qemu: could not open serial device '%s': %s\n",
2413 devname, strerror(errno));
2414 return -1;
2415 }
2416 index++;
2417 return 0;
2418 }
2419
2420 static int parallel_parse(const char *devname)
2421 {
2422 static int index = 0;
2423 char label[32];
2424
2425 if (strcmp(devname, "none") == 0)
2426 return 0;
2427 if (index == MAX_PARALLEL_PORTS) {
2428 fprintf(stderr, "qemu: too many parallel ports\n");
2429 exit(1);
2430 }
2431 snprintf(label, sizeof(label), "parallel%d", index);
2432 parallel_hds[index] = qemu_chr_open(label, devname, NULL);
2433 if (!parallel_hds[index]) {
2434 fprintf(stderr, "qemu: could not open parallel device '%s': %s\n",
2435 devname, strerror(errno));
2436 return -1;
2437 }
2438 index++;
2439 return 0;
2440 }
2441
2442 static int virtcon_parse(const char *devname)
2443 {
2444 static int index = 0;
2445 char label[32];
2446 QemuOpts *bus_opts, *dev_opts;
2447
2448 if (strcmp(devname, "none") == 0)
2449 return 0;
2450 if (index == MAX_VIRTIO_CONSOLES) {
2451 fprintf(stderr, "qemu: too many virtio consoles\n");
2452 exit(1);
2453 }
2454
2455 bus_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2456 qemu_opt_set(bus_opts, "driver", "virtio-serial");
2457
2458 dev_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2459 qemu_opt_set(dev_opts, "driver", "virtconsole");
2460
2461 snprintf(label, sizeof(label), "virtcon%d", index);
2462 virtcon_hds[index] = qemu_chr_open(label, devname, NULL);
2463 if (!virtcon_hds[index]) {
2464 fprintf(stderr, "qemu: could not open virtio console '%s': %s\n",
2465 devname, strerror(errno));
2466 return -1;
2467 }
2468 qemu_opt_set(dev_opts, "chardev", label);
2469
2470 index++;
2471 return 0;
2472 }
2473
2474 static int debugcon_parse(const char *devname)
2475 {
2476 QemuOpts *opts;
2477
2478 if (!qemu_chr_open("debugcon", devname, NULL)) {
2479 exit(1);
2480 }
2481 opts = qemu_opts_create(&qemu_device_opts, "debugcon", 1);
2482 if (!opts) {
2483 fprintf(stderr, "qemu: already have a debugcon device\n");
2484 exit(1);
2485 }
2486 qemu_opt_set(opts, "driver", "isa-debugcon");
2487 qemu_opt_set(opts, "chardev", "debugcon");
2488 return 0;
2489 }
2490
2491 static const QEMUOption *lookup_opt(int argc, char **argv,
2492 const char **poptarg, int *poptind)
2493 {
2494 const QEMUOption *popt;
2495 int optind = *poptind;
2496 char *r = argv[optind];
2497 const char *optarg;
2498
2499 loc_set_cmdline(argv, optind, 1);
2500 optind++;
2501 /* Treat --foo the same as -foo. */
2502 if (r[1] == '-')
2503 r++;
2504 popt = qemu_options;
2505 for(;;) {
2506 if (!popt->name) {
2507 error_report("invalid option");
2508 exit(1);
2509 }
2510 if (!strcmp(popt->name, r + 1))
2511 break;
2512 popt++;
2513 }
2514 if (popt->flags & HAS_ARG) {
2515 if (optind >= argc) {
2516 error_report("requires an argument");
2517 exit(1);
2518 }
2519 optarg = argv[optind++];
2520 loc_set_cmdline(argv, optind - 2, 2);
2521 } else {
2522 optarg = NULL;
2523 }
2524
2525 *poptarg = optarg;
2526 *poptind = optind;
2527
2528 return popt;
2529 }
2530
2531 int main(int argc, char **argv, char **envp)
2532 {
2533 const char *gdbstub_dev = NULL;
2534 int i;
2535 int snapshot, linux_boot;
2536 const char *icount_option = NULL;
2537 const char *initrd_filename;
2538 const char *kernel_filename, *kernel_cmdline;
2539 char boot_devices[33] = "cad"; /* default to HD->floppy->CD-ROM */
2540 DisplayState *ds;
2541 DisplayChangeListener *dcl;
2542 int cyls, heads, secs, translation;
2543 QemuOpts *hda_opts = NULL, *opts;
2544 int optind;
2545 const char *optarg;
2546 const char *loadvm = NULL;
2547 QEMUMachine *machine;
2548 const char *cpu_model;
2549 #ifndef _WIN32
2550 int fds[2];
2551 #endif
2552 int tb_size;
2553 const char *pid_file = NULL;
2554 const char *incoming = NULL;
2555 #ifndef _WIN32
2556 int fd = 0;
2557 struct passwd *pwd = NULL;
2558 const char *chroot_dir = NULL;
2559 const char *run_as = NULL;
2560 #endif
2561 int show_vnc_port = 0;
2562 int defconfig = 1;
2563
2564 error_set_progname(argv[0]);
2565
2566 init_clocks();
2567
2568 qemu_cache_utils_init(envp);
2569
2570 QLIST_INIT (&vm_change_state_head);
2571 #ifndef _WIN32
2572 {
2573 struct sigaction act;
2574 sigfillset(&act.sa_mask);
2575 act.sa_flags = 0;
2576 act.sa_handler = SIG_IGN;
2577 sigaction(SIGPIPE, &act, NULL);
2578 }
2579 #else
2580 SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE);
2581 /* Note: cpu_interrupt() is currently not SMP safe, so we force
2582 QEMU to run on a single CPU */
2583 {
2584 HANDLE h;
2585 DWORD mask, smask;
2586 int i;
2587 h = GetCurrentProcess();
2588 if (GetProcessAffinityMask(h, &mask, &smask)) {
2589 for(i = 0; i < 32; i++) {
2590 if (mask & (1 << i))
2591 break;
2592 }
2593 if (i != 32) {
2594 mask = 1 << i;
2595 SetProcessAffinityMask(h, mask);
2596 }
2597 }
2598 }
2599 #endif
2600
2601 module_call_init(MODULE_INIT_MACHINE);
2602 machine = find_default_machine();
2603 cpu_model = NULL;
2604 initrd_filename = NULL;
2605 ram_size = 0;
2606 snapshot = 0;
2607 kernel_filename = NULL;
2608 kernel_cmdline = "";
2609 cyls = heads = secs = 0;
2610 translation = BIOS_ATA_TRANSLATION_AUTO;
2611
2612 for (i = 0; i < MAX_NODES; i++) {
2613 node_mem[i] = 0;
2614 node_cpumask[i] = 0;
2615 }
2616
2617 nb_numa_nodes = 0;
2618 nb_nics = 0;
2619
2620 tb_size = 0;
2621 autostart= 1;
2622
2623 /* first pass of option parsing */
2624 optind = 1;
2625 while (optind < argc) {
2626 if (argv[optind][0] != '-') {
2627 /* disk image */
2628 optind++;
2629 continue;
2630 } else {
2631 const QEMUOption *popt;
2632
2633 popt = lookup_opt(argc, argv, &optarg, &optind);
2634 switch (popt->index) {
2635 case QEMU_OPTION_nodefconfig:
2636 defconfig=0;
2637 break;
2638 }
2639 }
2640 }
2641
2642 if (defconfig) {
2643 int ret;
2644
2645 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2646 if (ret == -EINVAL) {
2647 exit(1);
2648 }
2649
2650 ret = qemu_read_config_file(arch_config_name);
2651 if (ret == -EINVAL) {
2652 exit(1);
2653 }
2654 }
2655 cpudef_init();
2656
2657 /* second pass of option parsing */
2658 optind = 1;
2659 for(;;) {
2660 if (optind >= argc)
2661 break;
2662 if (argv[optind][0] != '-') {
2663 hda_opts = drive_add(argv[optind++], HD_ALIAS, 0);
2664 } else {
2665 const QEMUOption *popt;
2666
2667 popt = lookup_opt(argc, argv, &optarg, &optind);
2668 if (!(popt->arch_mask & arch_type)) {
2669 printf("Option %s not supported for this target\n", popt->name);
2670 exit(1);
2671 }
2672 switch(popt->index) {
2673 case QEMU_OPTION_M:
2674 machine = find_machine(optarg);
2675 if (!machine) {
2676 QEMUMachine *m;
2677 printf("Supported machines are:\n");
2678 for(m = first_machine; m != NULL; m = m->next) {
2679 if (m->alias)
2680 printf("%-10s %s (alias of %s)\n",
2681 m->alias, m->desc, m->name);
2682 printf("%-10s %s%s\n",
2683 m->name, m->desc,
2684 m->is_default ? " (default)" : "");
2685 }
2686 exit(*optarg != '?');
2687 }
2688 break;
2689 case QEMU_OPTION_cpu:
2690 /* hw initialization will check this */
2691 if (*optarg == '?') {
2692 /* XXX: implement xxx_cpu_list for targets that still miss it */
2693 #if defined(cpu_list_id)
2694 cpu_list_id(stdout, &fprintf, optarg);
2695 #elif defined(cpu_list)
2696 cpu_list(stdout, &fprintf); /* deprecated */
2697 #endif
2698 exit(0);
2699 } else {
2700 cpu_model = optarg;
2701 }
2702 break;
2703 case QEMU_OPTION_initrd:
2704 initrd_filename = optarg;
2705 break;
2706 case QEMU_OPTION_hda:
2707 if (cyls == 0)
2708 hda_opts = drive_add(optarg, HD_ALIAS, 0);
2709 else
2710 hda_opts = drive_add(optarg, HD_ALIAS
2711 ",cyls=%d,heads=%d,secs=%d%s",
2712 0, cyls, heads, secs,
2713 translation == BIOS_ATA_TRANSLATION_LBA ?
2714 ",trans=lba" :
2715 translation == BIOS_ATA_TRANSLATION_NONE ?
2716 ",trans=none" : "");
2717 break;
2718 case QEMU_OPTION_hdb:
2719 case QEMU_OPTION_hdc:
2720 case QEMU_OPTION_hdd:
2721 drive_add(optarg, HD_ALIAS, popt->index - QEMU_OPTION_hda);
2722 break;
2723 case QEMU_OPTION_drive:
2724 drive_add(NULL, "%s", optarg);
2725 break;
2726 case QEMU_OPTION_set:
2727 if (qemu_set_option(optarg) != 0)
2728 exit(1);
2729 break;
2730 case QEMU_OPTION_global:
2731 if (qemu_global_option(optarg) != 0)
2732 exit(1);
2733 break;
2734 case QEMU_OPTION_mtdblock:
2735 drive_add(optarg, MTD_ALIAS);
2736 break;
2737 case QEMU_OPTION_sd:
2738 drive_add(optarg, SD_ALIAS);
2739 break;
2740 case QEMU_OPTION_pflash:
2741 drive_add(optarg, PFLASH_ALIAS);
2742 break;
2743 case QEMU_OPTION_snapshot:
2744 snapshot = 1;
2745 break;
2746 case QEMU_OPTION_hdachs:
2747 {
2748 const char *p;
2749 p = optarg;
2750 cyls = strtol(p, (char **)&p, 0);
2751 if (cyls < 1 || cyls > 16383)
2752 goto chs_fail;
2753 if (*p != ',')
2754 goto chs_fail;
2755 p++;
2756 heads = strtol(p, (char **)&p, 0);
2757 if (heads < 1 || heads > 16)
2758 goto chs_fail;
2759 if (*p != ',')
2760 goto chs_fail;
2761 p++;
2762 secs = strtol(p, (char **)&p, 0);
2763 if (secs < 1 || secs > 63)
2764 goto chs_fail;
2765 if (*p == ',') {
2766 p++;
2767 if (!strcmp(p, "none"))
2768 translation = BIOS_ATA_TRANSLATION_NONE;
2769 else if (!strcmp(p, "lba"))
2770 translation = BIOS_ATA_TRANSLATION_LBA;
2771 else if (!strcmp(p, "auto"))
2772 translation = BIOS_ATA_TRANSLATION_AUTO;
2773 else
2774 goto chs_fail;
2775 } else if (*p != '\0') {
2776 chs_fail:
2777 fprintf(stderr, "qemu: invalid physical CHS format\n");
2778 exit(1);
2779 }
2780 if (hda_opts != NULL) {
2781 char num[16];
2782 snprintf(num, sizeof(num), "%d", cyls);
2783 qemu_opt_set(hda_opts, "cyls", num);
2784 snprintf(num, sizeof(num), "%d", heads);
2785 qemu_opt_set(hda_opts, "heads", num);
2786 snprintf(num, sizeof(num), "%d", secs);
2787 qemu_opt_set(hda_opts, "secs", num);
2788 if (translation == BIOS_ATA_TRANSLATION_LBA)
2789 qemu_opt_set(hda_opts, "trans", "lba");
2790 if (translation == BIOS_ATA_TRANSLATION_NONE)
2791 qemu_opt_set(hda_opts, "trans", "none");
2792 }
2793 }
2794 break;
2795 case QEMU_OPTION_numa:
2796 if (nb_numa_nodes >= MAX_NODES) {
2797 fprintf(stderr, "qemu: too many NUMA nodes\n");
2798 exit(1);
2799 }
2800 numa_add(optarg);
2801 break;
2802 case QEMU_OPTION_nographic:
2803 display_type = DT_NOGRAPHIC;
2804 break;
2805 #ifdef CONFIG_CURSES
2806 case QEMU_OPTION_curses:
2807 display_type = DT_CURSES;
2808 break;
2809 #endif
2810 case QEMU_OPTION_portrait:
2811 graphic_rotate = 1;
2812 break;
2813 case QEMU_OPTION_kernel:
2814 kernel_filename = optarg;
2815 break;
2816 case QEMU_OPTION_append:
2817 kernel_cmdline = optarg;
2818 break;
2819 case QEMU_OPTION_cdrom:
2820 drive_add(optarg, CDROM_ALIAS);
2821 break;
2822 case QEMU_OPTION_boot:
2823 {
2824 static const char * const params[] = {
2825 "order", "once", "menu", NULL
2826 };
2827 char buf[sizeof(boot_devices)];
2828 char *standard_boot_devices;
2829 int legacy = 0;
2830
2831 if (!strchr(optarg, '=')) {
2832 legacy = 1;
2833 pstrcpy(buf, sizeof(buf), optarg);
2834 } else if (check_params(buf, sizeof(buf), params, optarg) < 0) {
2835 fprintf(stderr,
2836 "qemu: unknown boot parameter '%s' in '%s'\n",
2837 buf, optarg);
2838 exit(1);
2839 }
2840
2841 if (legacy ||
2842 get_param_value(buf, sizeof(buf), "order", optarg)) {
2843 validate_bootdevices(buf);
2844 pstrcpy(boot_devices, sizeof(boot_devices), buf);
2845 }
2846 if (!legacy) {
2847 if (get_param_value(buf, sizeof(buf),
2848 "once", optarg)) {
2849 validate_bootdevices(buf);
2850 standard_boot_devices = qemu_strdup(boot_devices);
2851 pstrcpy(boot_devices, sizeof(boot_devices), buf);
2852 qemu_register_reset(restore_boot_devices,
2853 standard_boot_devices);
2854 }
2855 if (get_param_value(buf, sizeof(buf),
2856 "menu", optarg)) {
2857 if (!strcmp(buf, "on")) {
2858 boot_menu = 1;
2859 } else if (!strcmp(buf, "off")) {
2860 boot_menu = 0;
2861 } else {
2862 fprintf(stderr,
2863 "qemu: invalid option value '%s'\n",
2864 buf);
2865 exit(1);
2866 }
2867 }
2868 }
2869 }
2870 break;
2871 case QEMU_OPTION_fda:
2872 case QEMU_OPTION_fdb:
2873 drive_add(optarg, FD_ALIAS, popt->index - QEMU_OPTION_fda);
2874 break;
2875 case QEMU_OPTION_no_fd_bootchk:
2876 fd_bootchk = 0;
2877 break;
2878 case QEMU_OPTION_netdev:
2879 if (net_client_parse(&qemu_netdev_opts, optarg) == -1) {
2880 exit(1);
2881 }
2882 break;
2883 case QEMU_OPTION_net:
2884 if (net_client_parse(&qemu_net_opts, optarg) == -1) {
2885 exit(1);
2886 }
2887 break;
2888 #ifdef CONFIG_SLIRP
2889 case QEMU_OPTION_tftp:
2890 legacy_tftp_prefix = optarg;
2891 break;
2892 case QEMU_OPTION_bootp:
2893 legacy_bootp_filename = optarg;
2894 break;
2895 #ifndef _WIN32
2896 case QEMU_OPTION_smb:
2897 if (net_slirp_smb(optarg) < 0)
2898 exit(1);
2899 break;
2900 #endif
2901 case QEMU_OPTION_redir:
2902 if (net_slirp_redir(optarg) < 0)
2903 exit(1);
2904 break;
2905 #endif
2906 case QEMU_OPTION_bt:
2907 add_device_config(DEV_BT, optarg);
2908 break;
2909 case QEMU_OPTION_audio_help:
2910 if (!(audio_available())) {
2911 printf("Option %s not supported for this target\n", popt->name);
2912 exit(1);
2913 }
2914 AUD_help ();
2915 exit (0);
2916 break;
2917 case QEMU_OPTION_soundhw:
2918 if (!(audio_available())) {
2919 printf("Option %s not supported for this target\n", popt->name);
2920 exit(1);
2921 }
2922 select_soundhw (optarg);
2923 break;
2924 case QEMU_OPTION_h:
2925 help(0);
2926 break;
2927 case QEMU_OPTION_version:
2928 version();
2929 exit(0);
2930 break;
2931 case QEMU_OPTION_m: {
2932 uint64_t value;
2933 char *ptr;
2934
2935 value = strtoul(optarg, &ptr, 10);
2936 switch (*ptr) {
2937 case 0: case 'M': case 'm':
2938 value <<= 20;
2939 break;
2940 case 'G': case 'g':
2941 value <<= 30;
2942 break;
2943 default:
2944 fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
2945 exit(1);
2946 }
2947
2948 /* On 32-bit hosts, QEMU is limited by virtual address space */
2949 if (value > (2047 << 20) && HOST_LONG_BITS == 32) {
2950 fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
2951 exit(1);
2952 }
2953 if (value != (uint64_t)(ram_addr_t)value) {
2954 fprintf(stderr, "qemu: ram size too large\n");
2955 exit(1);
2956 }
2957 ram_size = value;
2958 break;
2959 }
2960 case QEMU_OPTION_mempath:
2961 mem_path = optarg;
2962 break;
2963 #ifdef MAP_POPULATE
2964 case QEMU_OPTION_mem_prealloc:
2965 mem_prealloc = 1;
2966 break;
2967 #endif
2968 case QEMU_OPTION_d:
2969 set_cpu_log(optarg);
2970 break;
2971 case QEMU_OPTION_s:
2972 gdbstub_dev = "tcp::" DEFAULT_GDBSTUB_PORT;
2973 break;
2974 case QEMU_OPTION_gdb:
2975 gdbstub_dev = optarg;
2976 break;
2977 case QEMU_OPTION_L:
2978 data_dir = optarg;
2979 break;
2980 case QEMU_OPTION_bios:
2981 bios_name = optarg;
2982 break;
2983 case QEMU_OPTION_singlestep:
2984 singlestep = 1;
2985 break;
2986 case QEMU_OPTION_S:
2987 autostart = 0;
2988 break;
2989 case QEMU_OPTION_k:
2990 keyboard_layout = optarg;
2991 break;
2992 case QEMU_OPTION_localtime:
2993 rtc_utc = 0;
2994 break;
2995 case QEMU_OPTION_vga:
2996 select_vgahw (optarg);
2997 break;
2998 case QEMU_OPTION_g:
2999 {
3000 const char *p;
3001 int w, h, depth;
3002 p = optarg;
3003 w = strtol(p, (char **)&p, 10);
3004 if (w <= 0) {
3005 graphic_error:
3006 fprintf(stderr, "qemu: invalid resolution or depth\n");
3007 exit(1);
3008 }
3009 if (*p != 'x')
3010 goto graphic_error;
3011 p++;
3012 h = strtol(p, (char **)&p, 10);
3013 if (h <= 0)
3014 goto graphic_error;
3015 if (*p == 'x') {
3016 p++;
3017 depth = strtol(p, (char **)&p, 10);
3018 if (depth != 8 && depth != 15 && depth != 16 &&
3019 depth != 24 && depth != 32)
3020 goto graphic_error;
3021 } else if (*p == '\0') {
3022 depth = graphic_depth;
3023 } else {
3024 goto graphic_error;
3025 }
3026
3027 graphic_width = w;
3028 graphic_height = h;
3029 graphic_depth = depth;
3030 }
3031 break;
3032 case QEMU_OPTION_echr:
3033 {
3034 char *r;
3035 term_escape_char = strtol(optarg, &r, 0);
3036 if (r == optarg)
3037 printf("Bad argument to echr\n");
3038 break;
3039 }
3040 case QEMU_OPTION_monitor:
3041 monitor_parse(optarg, "readline");
3042 default_monitor = 0;
3043 break;
3044 case QEMU_OPTION_qmp:
3045 monitor_parse(optarg, "control");
3046 default_monitor = 0;
3047 break;
3048 case QEMU_OPTION_mon:
3049 opts = qemu_opts_parse(&qemu_mon_opts, optarg, 1);
3050 if (!opts) {
3051 exit(1);
3052 }
3053 default_monitor = 0;
3054 break;
3055 case QEMU_OPTION_chardev:
3056 opts = qemu_opts_parse(&qemu_chardev_opts, optarg, 1);
3057 if (!opts) {
3058 exit(1);
3059 }
3060 break;
3061 case QEMU_OPTION_serial:
3062 add_device_config(DEV_SERIAL, optarg);
3063 default_serial = 0;
3064 if (strncmp(optarg, "mon:", 4) == 0) {
3065 default_monitor = 0;
3066 }
3067 break;
3068 case QEMU_OPTION_watchdog:
3069 if (watchdog) {
3070 fprintf(stderr,
3071 "qemu: only one watchdog option may be given\n");
3072 return 1;
3073 }
3074 watchdog = optarg;
3075 break;
3076 case QEMU_OPTION_watchdog_action:
3077 if (select_watchdog_action(optarg) == -1) {
3078 fprintf(stderr, "Unknown -watchdog-action parameter\n");
3079 exit(1);
3080 }
3081 break;
3082 case QEMU_OPTION_virtiocon:
3083 add_device_config(DEV_VIRTCON, optarg);
3084 default_virtcon = 0;
3085 if (strncmp(optarg, "mon:", 4) == 0) {
3086 default_monitor = 0;
3087 }
3088 break;
3089 case QEMU_OPTION_parallel:
3090 add_device_config(DEV_PARALLEL, optarg);
3091 default_parallel = 0;
3092 if (strncmp(optarg, "mon:", 4) == 0) {
3093 default_monitor = 0;
3094 }
3095 break;
3096 case QEMU_OPTION_debugcon:
3097 add_device_config(DEV_DEBUGCON, optarg);
3098 break;
3099 case QEMU_OPTION_loadvm:
3100 loadvm = optarg;
3101 break;
3102 case QEMU_OPTION_full_screen:
3103 full_screen = 1;
3104 break;
3105 #ifdef CONFIG_SDL
3106 case QEMU_OPTION_no_frame:
3107 no_frame = 1;
3108 break;
3109 case QEMU_OPTION_alt_grab:
3110 alt_grab = 1;
3111 break;
3112 case QEMU_OPTION_ctrl_grab:
3113 ctrl_grab = 1;
3114 break;
3115 case QEMU_OPTION_no_quit:
3116 no_quit = 1;
3117 break;
3118 case QEMU_OPTION_sdl:
3119 display_type = DT_SDL;
3120 break;
3121 #endif
3122 case QEMU_OPTION_pidfile:
3123 pid_file = optarg;
3124 break;
3125 case QEMU_OPTION_win2k_hack:
3126 win2k_install_hack = 1;
3127 break;
3128 case QEMU_OPTION_rtc_td_hack:
3129 rtc_td_hack = 1;
3130 break;
3131 case QEMU_OPTION_acpitable:
3132 do_acpitable_option(optarg);
3133 break;
3134 case QEMU_OPTION_smbios:
3135 do_smbios_option(optarg);
3136 break;
3137 case QEMU_OPTION_enable_kvm:
3138 kvm_allowed = 1;
3139 break;
3140 case QEMU_OPTION_usb:
3141 usb_enabled = 1;
3142 break;
3143 case QEMU_OPTION_usbdevice:
3144 usb_enabled = 1;
3145 add_device_config(DEV_USB, optarg);
3146 break;
3147 case QEMU_OPTION_device:
3148 if (!qemu_opts_parse(&qemu_device_opts, optarg, 1)) {
3149 exit(1);
3150 }
3151 break;
3152 case QEMU_OPTION_smp:
3153 smp_parse(optarg);
3154 if (smp_cpus < 1) {
3155 fprintf(stderr, "Invalid number of CPUs\n");
3156 exit(1);
3157 }
3158 if (max_cpus < smp_cpus) {
3159 fprintf(stderr, "maxcpus must be equal to or greater than "
3160 "smp\n");
3161 exit(1);
3162 }
3163 if (max_cpus > 255) {
3164 fprintf(stderr, "Unsupported number of maxcpus\n");
3165 exit(1);
3166 }
3167 break;
3168 case QEMU_OPTION_vnc:
3169 display_type = DT_VNC;
3170 vnc_display = optarg;
3171 break;
3172 case QEMU_OPTION_no_acpi:
3173 acpi_enabled = 0;
3174 break;
3175 case QEMU_OPTION_no_hpet:
3176 no_hpet = 1;
3177 break;
3178 case QEMU_OPTION_balloon:
3179 if (balloon_parse(optarg) < 0) {
3180 fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
3181 exit(1);
3182 }
3183 break;
3184 case QEMU_OPTION_no_reboot:
3185 no_reboot = 1;
3186 break;
3187 case QEMU_OPTION_no_shutdown:
3188 no_shutdown = 1;
3189 break;
3190 case QEMU_OPTION_show_cursor:
3191 cursor_hide = 0;
3192 break;
3193 case QEMU_OPTION_uuid:
3194 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
3195 fprintf(stderr, "Fail to parse UUID string."
3196 " Wrong format.\n");
3197 exit(1);
3198 }
3199 break;
3200 #ifndef _WIN32
3201 case QEMU_OPTION_daemonize:
3202 daemonize = 1;
3203 break;
3204 #endif
3205 case QEMU_OPTION_option_rom:
3206 if (nb_option_roms >= MAX_OPTION_ROMS) {
3207 fprintf(stderr, "Too many option ROMs\n");
3208 exit(1);
3209 }
3210 option_rom[nb_option_roms] = optarg;
3211 nb_option_roms++;
3212 break;
3213 case QEMU_OPTION_semihosting:
3214 semihosting_enabled = 1;
3215 break;
3216 case QEMU_OPTION_name:
3217 qemu_name = qemu_strdup(optarg);
3218 {
3219 char *p = strchr(qemu_name, ',');
3220 if (p != NULL) {
3221 *p++ = 0;
3222 if (strncmp(p, "process=", 8)) {
3223 fprintf(stderr, "Unknown subargument %s to -name", p);
3224 exit(1);
3225 }
3226 p += 8;
3227 set_proc_name(p);
3228 }
3229 }
3230 break;
3231 case QEMU_OPTION_prom_env:
3232 if (nb_prom_envs >= MAX_PROM_ENVS) {
3233 fprintf(stderr, "Too many prom variables\n");
3234 exit(1);
3235 }
3236 prom_envs[nb_prom_envs] = optarg;
3237 nb_prom_envs++;
3238 break;
3239 case QEMU_OPTION_old_param:
3240 old_param = 1;
3241 break;
3242 case QEMU_OPTION_clock:
3243 configure_alarms(optarg);
3244 break;
3245 case QEMU_OPTION_startdate:
3246 configure_rtc_date_offset(optarg, 1);
3247 break;
3248 case QEMU_OPTION_rtc:
3249 opts = qemu_opts_parse(&qemu_rtc_opts, optarg, 0);
3250 if (!opts) {
3251 exit(1);
3252 }
3253 configure_rtc(opts);
3254 break;
3255 case QEMU_OPTION_tb_size:
3256 tb_size = strtol(optarg, NULL, 0);
3257 if (tb_size < 0)
3258 tb_size = 0;
3259 break;
3260 case QEMU_OPTION_icount:
3261 icount_option = optarg;
3262 break;
3263 case QEMU_OPTION_incoming:
3264 incoming = optarg;
3265 break;
3266 case QEMU_OPTION_nodefaults:
3267 default_serial = 0;
3268 default_parallel = 0;
3269 default_virtcon = 0;
3270 default_monitor = 0;
3271 default_vga = 0;
3272 default_net = 0;
3273 default_floppy = 0;
3274 default_cdrom = 0;
3275 default_sdcard = 0;
3276 break;
3277 #ifndef _WIN32
3278 case QEMU_OPTION_chroot:
3279 chroot_dir = optarg;
3280 break;
3281 case QEMU_OPTION_runas:
3282 run_as = optarg;
3283 break;
3284 #endif
3285 case QEMU_OPTION_xen_domid:
3286 if (!(xen_available())) {
3287 printf("Option %s not supported for this target\n", popt->name);
3288 exit(1);
3289 }
3290 xen_domid = atoi(optarg);
3291 break;
3292 case QEMU_OPTION_xen_create:
3293 if (!(xen_available())) {
3294 printf("Option %s not supported for this target\n", popt->name);
3295 exit(1);
3296 }
3297 xen_mode = XEN_CREATE;
3298 break;
3299 case QEMU_OPTION_xen_attach:
3300 if (!(xen_available())) {
3301 printf("Option %s not supported for this target\n", popt->name);
3302 exit(1);
3303 }
3304 xen_mode = XEN_ATTACH;
3305 break;
3306 case QEMU_OPTION_readconfig:
3307 {
3308 int ret = qemu_read_config_file(optarg);
3309 if (ret < 0) {
3310 fprintf(stderr, "read config %s: %s\n", optarg,
3311 strerror(-ret));
3312 exit(1);
3313 }
3314 break;
3315 }
3316 case QEMU_OPTION_writeconfig:
3317 {
3318 FILE *fp;
3319 if (strcmp(optarg, "-") == 0) {
3320 fp = stdout;
3321 } else {
3322 fp = fopen(optarg, "w");
3323 if (fp == NULL) {
3324 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
3325 exit(1);
3326 }
3327 }
3328 qemu_config_write(fp);
3329 fclose(fp);
3330 break;
3331 }
3332 }
3333 }
3334 }
3335 loc_set_none();
3336
3337 /* If no data_dir is specified then try to find it relative to the
3338 executable path. */
3339 if (!data_dir) {
3340 data_dir = find_datadir(argv[0]);
3341 }
3342 /* If all else fails use the install patch specified when building. */
3343 if (!data_dir) {
3344 data_dir = CONFIG_QEMU_SHAREDIR;
3345 }
3346
3347 /*
3348 * Default to max_cpus = smp_cpus, in case the user doesn't
3349 * specify a max_cpus value.
3350 */
3351 if (!max_cpus)
3352 max_cpus = smp_cpus;
3353
3354 machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
3355 if (smp_cpus > machine->max_cpus) {
3356 fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
3357 "supported by machine `%s' (%d)\n", smp_cpus, machine->name,
3358 machine->max_cpus);
3359 exit(1);
3360 }
3361
3362 qemu_opts_foreach(&qemu_device_opts, default_driver_check, NULL, 0);
3363 qemu_opts_foreach(&qemu_global_opts, default_driver_check, NULL, 0);
3364
3365 if (machine->no_serial) {
3366 default_serial = 0;
3367 }
3368 if (machine->no_parallel) {
3369 default_parallel = 0;
3370 }
3371 if (!machine->use_virtcon) {
3372 default_virtcon = 0;
3373 }
3374 if (machine->no_vga) {
3375 default_vga = 0;
3376 }
3377 if (machine->no_floppy) {
3378 default_floppy = 0;
3379 }
3380 if (machine->no_cdrom) {
3381 default_cdrom = 0;
3382 }
3383 if (machine->no_sdcard) {
3384 default_sdcard = 0;
3385 }
3386
3387 if (display_type == DT_NOGRAPHIC) {
3388 if (default_parallel)
3389 add_device_config(DEV_PARALLEL, "null");
3390 if (default_serial && default_monitor) {
3391 add_device_config(DEV_SERIAL, "mon:stdio");
3392 } else if (default_virtcon && default_monitor) {
3393 add_device_config(DEV_VIRTCON, "mon:stdio");
3394 } else {
3395 if (default_serial)
3396 add_device_config(DEV_SERIAL, "stdio");
3397 if (default_virtcon)
3398 add_device_config(DEV_VIRTCON, "stdio");
3399 if (default_monitor)
3400 monitor_parse("stdio", "readline");
3401 }
3402 } else {
3403 if (default_serial)
3404 add_device_config(DEV_SERIAL, "vc:80Cx24C");
3405 if (default_parallel)
3406 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
3407 if (default_monitor)
3408 monitor_parse("vc:80Cx24C", "readline");
3409 if (default_virtcon)
3410 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
3411 }
3412 if (default_vga)
3413 vga_interface_type = VGA_CIRRUS;
3414
3415 if (qemu_opts_foreach(&qemu_chardev_opts, chardev_init_func, NULL, 1) != 0)
3416 exit(1);
3417
3418 #ifndef _WIN32
3419 if (daemonize) {
3420 pid_t pid;
3421
3422 if (pipe(fds) == -1)
3423 exit(1);
3424
3425 pid = fork();
3426 if (pid > 0) {
3427 uint8_t status;
3428 ssize_t len;
3429
3430 close(fds[1]);
3431
3432 again:
3433 len = read(fds[0], &status, 1);
3434 if (len == -1 && (errno == EINTR))
3435 goto again;
3436
3437 if (len != 1)
3438 exit(1);
3439 else if (status == 1) {
3440 fprintf(stderr, "Could not acquire pidfile: %s\n", strerror(errno));
3441 exit(1);
3442 } else
3443 exit(0);
3444 } else if (pid < 0)
3445 exit(1);
3446
3447 close(fds[0]);
3448 qemu_set_cloexec(fds[1]);
3449
3450 setsid();
3451
3452 pid = fork();
3453 if (pid > 0)
3454 exit(0);
3455 else if (pid < 0)
3456 exit(1);
3457
3458 umask(027);
3459
3460 signal(SIGTSTP, SIG_IGN);
3461 signal(SIGTTOU, SIG_IGN);
3462 signal(SIGTTIN, SIG_IGN);
3463 }
3464 #endif
3465
3466 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
3467 #ifndef _WIN32
3468 if (daemonize) {
3469 uint8_t status = 1;
3470 if (write(fds[1], &status, 1) != 1) {
3471 perror("daemonize. Writing to pipe\n");
3472 }
3473 } else
3474 #endif
3475 fprintf(stderr, "Could not acquire pid file: %s\n", strerror(errno));
3476 exit(1);
3477 }
3478
3479 if (kvm_allowed) {
3480 int ret = kvm_init(smp_cpus);
3481 if (ret < 0) {
3482 if (!kvm_available()) {
3483 printf("KVM not supported for this target\n");
3484 } else {
3485 fprintf(stderr, "failed to initialize KVM: %s\n", strerror(-ret));
3486 }
3487 exit(1);
3488 }
3489 }
3490
3491 if (qemu_init_main_loop()) {
3492 fprintf(stderr, "qemu_init_main_loop failed\n");
3493 exit(1);
3494 }
3495 linux_boot = (kernel_filename != NULL);
3496
3497 if (!linux_boot && *kernel_cmdline != '\0') {
3498 fprintf(stderr, "-append only allowed with -kernel option\n");
3499 exit(1);
3500 }
3501
3502 if (!linux_boot && initrd_filename != NULL) {
3503 fprintf(stderr, "-initrd only allowed with -kernel option\n");
3504 exit(1);
3505 }
3506
3507 #ifndef _WIN32
3508 /* Win32 doesn't support line-buffering and requires size >= 2 */
3509 setvbuf(stdout, NULL, _IOLBF, 0);
3510 #endif
3511
3512 if (init_timer_alarm() < 0) {
3513 fprintf(stderr, "could not initialize alarm timer\n");
3514 exit(1);
3515 }
3516 configure_icount(icount_option);
3517
3518 socket_init();
3519
3520 if (net_init_clients() < 0) {
3521 exit(1);
3522 }
3523
3524 /* init the bluetooth world */
3525 if (foreach_device_config(DEV_BT, bt_parse))
3526 exit(1);
3527
3528 /* init the memory */
3529 if (ram_size == 0)
3530 ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
3531
3532 /* init the dynamic translator */
3533 cpu_exec_init_all(tb_size * 1024 * 1024);
3534
3535 bdrv_init_with_whitelist();
3536
3537 blk_mig_init();
3538
3539 if (default_cdrom) {
3540 /* we always create the cdrom drive, even if no disk is there */
3541 drive_add(NULL, CDROM_ALIAS);
3542 }
3543
3544 if (default_floppy) {
3545 /* we always create at least one floppy */
3546 drive_add(NULL, FD_ALIAS, 0);
3547 }
3548
3549 if (default_sdcard) {
3550 /* we always create one sd slot, even if no card is in it */
3551 drive_add(NULL, SD_ALIAS);
3552 }
3553
3554 /* open the virtual block devices */
3555 if (snapshot)
3556 qemu_opts_foreach(&qemu_drive_opts, drive_enable_snapshot, NULL, 0);
3557 if (qemu_opts_foreach(&qemu_drive_opts, drive_init_func, machine, 1) != 0)
3558 exit(1);
3559
3560 register_savevm_live("ram", 0, 3, NULL, ram_save_live, NULL,
3561 ram_load, NULL);
3562
3563 if (nb_numa_nodes > 0) {
3564 int i;
3565
3566 if (nb_numa_nodes > smp_cpus) {
3567 nb_numa_nodes = smp_cpus;
3568 }
3569
3570 /* If no memory size if given for any node, assume the default case
3571 * and distribute the available memory equally across all nodes
3572 */
3573 for (i = 0; i < nb_numa_nodes; i++) {
3574 if (node_mem[i] != 0)
3575 break;
3576 }
3577 if (i == nb_numa_nodes) {
3578 uint64_t usedmem = 0;
3579
3580 /* On Linux, the each node's border has to be 8MB aligned,
3581 * the final node gets the rest.
3582 */
3583 for (i = 0; i < nb_numa_nodes - 1; i++) {
3584 node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1);
3585 usedmem += node_mem[i];
3586 }
3587 node_mem[i] = ram_size - usedmem;
3588 }
3589
3590 for (i = 0; i < nb_numa_nodes; i++) {
3591 if (node_cpumask[i] != 0)
3592 break;
3593 }
3594 /* assigning the VCPUs round-robin is easier to implement, guest OSes
3595 * must cope with this anyway, because there are BIOSes out there in
3596 * real machines which also use this scheme.
3597 */
3598 if (i == nb_numa_nodes) {
3599 for (i = 0; i < smp_cpus; i++) {
3600 node_cpumask[i % nb_numa_nodes] |= 1 << i;
3601 }
3602 }
3603 }
3604
3605 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
3606 exit(1);
3607 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
3608 exit(1);
3609 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
3610 exit(1);
3611 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
3612 exit(1);
3613
3614 module_call_init(MODULE_INIT_DEVICE);
3615
3616 if (qemu_opts_foreach(&qemu_device_opts, device_help_func, NULL, 0) != 0)
3617 exit(0);
3618
3619 if (watchdog) {
3620 i = select_watchdog(watchdog);
3621 if (i > 0)
3622 exit (i == 1 ? 1 : 0);
3623 }
3624
3625 if (machine->compat_props) {
3626 qdev_prop_register_global_list(machine->compat_props);
3627 }
3628 qemu_add_globals();
3629
3630 machine->init(ram_size, boot_devices,
3631 kernel_filename, kernel_cmdline, initrd_filename, cpu_model);
3632
3633 cpu_synchronize_all_post_init();
3634
3635 #ifndef _WIN32
3636 /* must be after terminal init, SDL library changes signal handlers */
3637 sighandler_setup();
3638 #endif
3639
3640 set_numa_modes();
3641
3642 current_machine = machine;
3643
3644 /* init USB devices */
3645 if (usb_enabled) {
3646 if (foreach_device_config(DEV_USB, usb_parse) < 0)
3647 exit(1);
3648 }
3649
3650 /* init generic devices */
3651 if (qemu_opts_foreach(&qemu_device_opts, device_init_func, NULL, 1) != 0)
3652 exit(1);
3653
3654 net_check_clients();
3655
3656 /* just use the first displaystate for the moment */
3657 ds = get_displaystate();
3658
3659 if (display_type == DT_DEFAULT) {
3660 #if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
3661 display_type = DT_SDL;
3662 #else
3663 display_type = DT_VNC;
3664 vnc_display = "localhost:0,to=99";
3665 show_vnc_port = 1;
3666 #endif
3667 }
3668
3669
3670 switch (display_type) {
3671 case DT_NOGRAPHIC:
3672 break;
3673 #if defined(CONFIG_CURSES)
3674 case DT_CURSES:
3675 curses_display_init(ds, full_screen);
3676 break;
3677 #endif
3678 #if defined(CONFIG_SDL)
3679 case DT_SDL:
3680 sdl_display_init(ds, full_screen, no_frame);
3681 break;
3682 #elif defined(CONFIG_COCOA)
3683 case DT_SDL:
3684 cocoa_display_init(ds, full_screen);
3685 break;
3686 #endif
3687 case DT_VNC:
3688 vnc_display_init(ds);
3689 if (vnc_display_open(ds, vnc_display) < 0)
3690 exit(1);
3691
3692 if (show_vnc_port) {
3693 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
3694 }
3695 break;
3696 default:
3697 break;
3698 }
3699 dpy_resize(ds);
3700
3701 dcl = ds->listeners;
3702 while (dcl != NULL) {
3703 if (dcl->dpy_refresh != NULL) {
3704 ds->gui_timer = qemu_new_timer(rt_clock, gui_update, ds);
3705 qemu_mod_timer(ds->gui_timer, qemu_get_clock(rt_clock));
3706 }
3707 dcl = dcl->next;
3708 }
3709
3710 if (display_type == DT_NOGRAPHIC || display_type == DT_VNC) {
3711 nographic_timer = qemu_new_timer(rt_clock, nographic_update, NULL);
3712 qemu_mod_timer(nographic_timer, qemu_get_clock(rt_clock));
3713 }
3714
3715 text_consoles_set_display(ds);
3716
3717 if (qemu_opts_foreach(&qemu_mon_opts, mon_init_func, NULL, 1) != 0)
3718 exit(1);
3719
3720 if (gdbstub_dev && gdbserver_start(gdbstub_dev) < 0) {
3721 fprintf(stderr, "qemu: could not open gdbserver on device '%s'\n",
3722 gdbstub_dev);
3723 exit(1);
3724 }
3725
3726 qdev_machine_creation_done();
3727
3728 if (rom_load_all() != 0) {
3729 fprintf(stderr, "rom loading failed\n");
3730 exit(1);
3731 }
3732
3733 qemu_system_reset();
3734 if (loadvm) {
3735 if (load_vmstate(loadvm) < 0) {
3736 autostart = 0;
3737 }
3738 }
3739
3740 if (incoming) {
3741 qemu_start_incoming_migration(incoming);
3742 } else if (autostart) {
3743 vm_start();
3744 }
3745
3746 #ifndef _WIN32
3747 if (daemonize) {
3748 uint8_t status = 0;
3749 ssize_t len;
3750
3751 again1:
3752 len = write(fds[1], &status, 1);
3753 if (len == -1 && (errno == EINTR))
3754 goto again1;
3755
3756 if (len != 1)
3757 exit(1);
3758
3759 if (chdir("/")) {
3760 perror("not able to chdir to /");
3761 exit(1);
3762 }
3763 TFR(fd = qemu_open("/dev/null", O_RDWR));
3764 if (fd == -1)
3765 exit(1);
3766 }
3767
3768 if (run_as) {
3769 pwd = getpwnam(run_as);
3770 if (!pwd) {
3771 fprintf(stderr, "User \"%s\" doesn't exist\n", run_as);
3772 exit(1);
3773 }
3774 }
3775
3776 if (chroot_dir) {
3777 if (chroot(chroot_dir) < 0) {
3778 fprintf(stderr, "chroot failed\n");
3779 exit(1);
3780 }
3781 if (chdir("/")) {
3782 perror("not able to chdir to /");
3783 exit(1);
3784 }
3785 }
3786
3787 if (run_as) {
3788 if (setgid(pwd->pw_gid) < 0) {
3789 fprintf(stderr, "Failed to setgid(%d)\n", pwd->pw_gid);
3790 exit(1);
3791 }
3792 if (setuid(pwd->pw_uid) < 0) {
3793 fprintf(stderr, "Failed to setuid(%d)\n", pwd->pw_uid);
3794 exit(1);
3795 }
3796 if (setuid(0) != -1) {
3797 fprintf(stderr, "Dropping privileges failed\n");
3798 exit(1);
3799 }
3800 }
3801
3802 if (daemonize) {
3803 dup2(fd, 0);
3804 dup2(fd, 1);
3805 dup2(fd, 2);
3806
3807 close(fd);
3808 }
3809 #endif
3810
3811 main_loop();
3812 quit_timers();
3813 net_cleanup();
3814
3815 return 0;
3816 }
Anthony Liguori's QEMU queue