?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
vl.c: Remove double include of netinet/in.h for Solaris
[qemu/qemu-dev-zwu.git] / vl.c
bloba9be190bf996a32a9c1dbc5d97c83484c6615c31
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_systm.h>
74 #include <netinet/ip.h>
75 #include <netinet/ip_icmp.h> // must come after ip.h
76 #include <netinet/udp.h>
77 #include <netinet/tcp.h>
78 #include <net/if.h>
79 #include <syslog.h>
80 #include <stropts.h>
81 /* See MySQL bug #7156 (http://bugs.mysql.com/bug.php?id=7156) for
82 discussion about Solaris header problems */
83 extern int madvise(caddr_t, size_t, int);
84 #endif
85 #endif
86 #endif
87
88 #if defined(__OpenBSD__)
89 #include <util.h>
90 #endif
91
92 #if defined(CONFIG_VDE)
93 #include <libvdeplug.h>
94 #endif
95
96 #ifdef _WIN32
97 #include <windows.h>
98 #endif
99
100 #ifdef CONFIG_SDL
101 #if defined(__APPLE__) || defined(main)
102 #include <SDL.h>
103 int qemu_main(int argc, char **argv, char **envp);
104 int main(int argc, char **argv)
105 {
106 return qemu_main(argc, argv, NULL);
107 }
108 #undef main
109 #define main qemu_main
110 #endif
111 #endif /* CONFIG_SDL */
112
113 #ifdef CONFIG_COCOA
114 #undef main
115 #define main qemu_main
116 #endif /* CONFIG_COCOA */
117
118 #include "hw/hw.h"
119 #include "hw/boards.h"
120 #include "hw/usb.h"
121 #include "hw/pcmcia.h"
122 #include "hw/pc.h"
123 #include "hw/isa.h"
124 #include "hw/baum.h"
125 #include "hw/bt.h"
126 #include "hw/watchdog.h"
127 #include "hw/smbios.h"
128 #include "hw/xen.h"
129 #include "hw/qdev.h"
130 #include "hw/loader.h"
131 #include "bt-host.h"
132 #include "net.h"
133 #include "net/slirp.h"
134 #include "monitor.h"
135 #include "console.h"
136 #include "sysemu.h"
137 #include "gdbstub.h"
138 #include "qemu-timer.h"
139 #include "qemu-char.h"
140 #include "cache-utils.h"
141 #include "block.h"
142 #include "block_int.h"
143 #include "block-migration.h"
144 #include "dma.h"
145 #include "audio/audio.h"
146 #include "migration.h"
147 #include "kvm.h"
148 #include "qemu-option.h"
149 #include "qemu-config.h"
150 #include "qemu-objects.h"
151 #ifdef CONFIG_LINUX
152 #include "fsdev/qemu-fsdev.h"
153 #endif
154
155 #include "disas.h"
156
157 #include "qemu_socket.h"
158
159 #include "slirp/libslirp.h"
160
161 #include "qemu-queue.h"
162 #include "cpus.h"
163 #include "arch_init.h"
164
165 //#define DEBUG_NET
166 //#define DEBUG_SLIRP
167
168 #define DEFAULT_RAM_SIZE 128
169
170 #define MAX_VIRTIO_CONSOLES 1
171
172 static const char *data_dir;
173 const char *bios_name = NULL;
174 /* Note: drives_table[MAX_DRIVES] is a dummy block driver if none available
175 to store the VM snapshots */
176 struct drivelist drives = QTAILQ_HEAD_INITIALIZER(drives);
177 struct driveoptlist driveopts = QTAILQ_HEAD_INITIALIZER(driveopts);
178 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
179 DisplayType display_type = DT_DEFAULT;
180 const char* keyboard_layout = NULL;
181 ram_addr_t ram_size;
182 const char *mem_path = NULL;
183 #ifdef MAP_POPULATE
184 int mem_prealloc = 0; /* force preallocation of physical target memory */
185 #endif
186 int nb_nics;
187 NICInfo nd_table[MAX_NICS];
188 int vm_running;
189 int autostart;
190 static int rtc_utc = 1;
191 static int rtc_date_offset = -1; /* -1 means no change */
192 QEMUClock *rtc_clock;
193 int vga_interface_type = VGA_NONE;
194 static int full_screen = 0;
195 #ifdef CONFIG_SDL
196 static int no_frame = 0;
197 #endif
198 int no_quit = 0;
199 CharDriverState *serial_hds[MAX_SERIAL_PORTS];
200 CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
201 CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES];
202 int win2k_install_hack = 0;
203 int rtc_td_hack = 0;
204 int usb_enabled = 0;
205 int singlestep = 0;
206 int smp_cpus = 1;
207 int max_cpus = 0;
208 int smp_cores = 1;
209 int smp_threads = 1;
210 const char *vnc_display;
211 int acpi_enabled = 1;
212 int no_hpet = 0;
213 int fd_bootchk = 1;
214 int no_reboot = 0;
215 int no_shutdown = 0;
216 int cursor_hide = 1;
217 int graphic_rotate = 0;
218 uint8_t irq0override = 1;
219 #ifndef _WIN32
220 int daemonize = 0;
221 #endif
222 const char *watchdog;
223 const char *option_rom[MAX_OPTION_ROMS];
224 int nb_option_roms;
225 int semihosting_enabled = 0;
226 int old_param = 0;
227 const char *qemu_name;
228 int alt_grab = 0;
229 int ctrl_grab = 0;
230 unsigned int nb_prom_envs = 0;
231 const char *prom_envs[MAX_PROM_ENVS];
232 int boot_menu;
233
234 int nb_numa_nodes;
235 uint64_t node_mem[MAX_NODES];
236 uint64_t node_cpumask[MAX_NODES];
237
238 static QEMUTimer *nographic_timer;
239
240 uint8_t qemu_uuid[16];
241
242 static QEMUBootSetHandler *boot_set_handler;
243 static void *boot_set_opaque;
244
245 int kvm_allowed = 0;
246 uint32_t xen_domid;
247 enum xen_mode xen_mode = XEN_EMULATE;
248
249 static int default_serial = 1;
250 static int default_parallel = 1;
251 static int default_virtcon = 1;
252 static int default_monitor = 1;
253 static int default_vga = 1;
254 static int default_floppy = 1;
255 static int default_cdrom = 1;
256 static int default_sdcard = 1;
257
258 static struct {
259 const char *driver;
260 int *flag;
261 } default_list[] = {
262 { .driver = "isa-serial", .flag = &default_serial },
263 { .driver = "isa-parallel", .flag = &default_parallel },
264 { .driver = "isa-fdc", .flag = &default_floppy },
265 { .driver = "ide-drive", .flag = &default_cdrom },
266 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
267 { .driver = "virtio-serial-s390", .flag = &default_virtcon },
268 { .driver = "virtio-serial", .flag = &default_virtcon },
269 { .driver = "VGA", .flag = &default_vga },
270 { .driver = "cirrus-vga", .flag = &default_vga },
271 { .driver = "vmware-svga", .flag = &default_vga },
272 };
273
274 static int default_driver_check(QemuOpts *opts, void *opaque)
275 {
276 const char *driver = qemu_opt_get(opts, "driver");
277 int i;
278
279 if (!driver)
280 return 0;
281 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
282 if (strcmp(default_list[i].driver, driver) != 0)
283 continue;
284 *(default_list[i].flag) = 0;
285 }
286 return 0;
287 }
288
289 /***********************************************************/
290
291 static void set_proc_name(const char *s)
292 {
293 #if defined(__linux__) && defined(PR_SET_NAME)
294 char name[16];
295 if (!s)
296 return;
297 name[sizeof(name) - 1] = 0;
298 strncpy(name, s, sizeof(name));
299 /* Could rewrite argv[0] too, but that's a bit more complicated.
300 This simple way is enough for `top'. */
301 prctl(PR_SET_NAME, name);
302 #endif
303 }
304
305 /***********************************************************/
306 /* real time host monotonic timer */
307
308 /* compute with 96 bit intermediate result: (a*b)/c */
309 uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
310 {
311 union {
312 uint64_t ll;
313 struct {
314 #ifdef HOST_WORDS_BIGENDIAN
315 uint32_t high, low;
316 #else
317 uint32_t low, high;
318 #endif
319 } l;
320 } u, res;
321 uint64_t rl, rh;
322
323 u.ll = a;
324 rl = (uint64_t)u.l.low * (uint64_t)b;
325 rh = (uint64_t)u.l.high * (uint64_t)b;
326 rh += (rl >> 32);
327 res.l.high = rh / c;
328 res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
329 return res.ll;
330 }
331
332 /***********************************************************/
333 /* host time/date access */
334 void qemu_get_timedate(struct tm *tm, int offset)
335 {
336 time_t ti;
337 struct tm *ret;
338
339 time(&ti);
340 ti += offset;
341 if (rtc_date_offset == -1) {
342 if (rtc_utc)
343 ret = gmtime(&ti);
344 else
345 ret = localtime(&ti);
346 } else {
347 ti -= rtc_date_offset;
348 ret = gmtime(&ti);
349 }
350
351 memcpy(tm, ret, sizeof(struct tm));
352 }
353
354 int qemu_timedate_diff(struct tm *tm)
355 {
356 time_t seconds;
357
358 if (rtc_date_offset == -1)
359 if (rtc_utc)
360 seconds = mktimegm(tm);
361 else
362 seconds = mktime(tm);
363 else
364 seconds = mktimegm(tm) + rtc_date_offset;
365
366 return seconds - time(NULL);
367 }
368
369 void rtc_change_mon_event(struct tm *tm)
370 {
371 QObject *data;
372
373 data = qobject_from_jsonf("{ 'offset': %d }", qemu_timedate_diff(tm));
374 monitor_protocol_event(QEVENT_RTC_CHANGE, data);
375 qobject_decref(data);
376 }
377
378 static void configure_rtc_date_offset(const char *startdate, int legacy)
379 {
380 time_t rtc_start_date;
381 struct tm tm;
382
383 if (!strcmp(startdate, "now") && legacy) {
384 rtc_date_offset = -1;
385 } else {
386 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
387 &tm.tm_year,
388 &tm.tm_mon,
389 &tm.tm_mday,
390 &tm.tm_hour,
391 &tm.tm_min,
392 &tm.tm_sec) == 6) {
393 /* OK */
394 } else if (sscanf(startdate, "%d-%d-%d",
395 &tm.tm_year,
396 &tm.tm_mon,
397 &tm.tm_mday) == 3) {
398 tm.tm_hour = 0;
399 tm.tm_min = 0;
400 tm.tm_sec = 0;
401 } else {
402 goto date_fail;
403 }
404 tm.tm_year -= 1900;
405 tm.tm_mon--;
406 rtc_start_date = mktimegm(&tm);
407 if (rtc_start_date == -1) {
408 date_fail:
409 fprintf(stderr, "Invalid date format. Valid formats are:\n"
410 "'2006-06-17T16:01:21' or '2006-06-17'\n");
411 exit(1);
412 }
413 rtc_date_offset = time(NULL) - rtc_start_date;
414 }
415 }
416
417 static void configure_rtc(QemuOpts *opts)
418 {
419 const char *value;
420
421 value = qemu_opt_get(opts, "base");
422 if (value) {
423 if (!strcmp(value, "utc")) {
424 rtc_utc = 1;
425 } else if (!strcmp(value, "localtime")) {
426 rtc_utc = 0;
427 } else {
428 configure_rtc_date_offset(value, 0);
429 }
430 }
431 value = qemu_opt_get(opts, "clock");
432 if (value) {
433 if (!strcmp(value, "host")) {
434 rtc_clock = host_clock;
435 } else if (!strcmp(value, "vm")) {
436 rtc_clock = vm_clock;
437 } else {
438 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
439 exit(1);
440 }
441 }
442 value = qemu_opt_get(opts, "driftfix");
443 if (value) {
444 if (!strcmp(value, "slew")) {
445 rtc_td_hack = 1;
446 } else if (!strcmp(value, "none")) {
447 rtc_td_hack = 0;
448 } else {
449 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
450 exit(1);
451 }
452 }
453 }
454
455 /***********************************************************/
456 /* Bluetooth support */
457 static int nb_hcis;
458 static int cur_hci;
459 static struct HCIInfo *hci_table[MAX_NICS];
460
461 static struct bt_vlan_s {
462 struct bt_scatternet_s net;
463 int id;
464 struct bt_vlan_s *next;
465 } *first_bt_vlan;
466
467 /* find or alloc a new bluetooth "VLAN" */
468 static struct bt_scatternet_s *qemu_find_bt_vlan(int id)
469 {
470 struct bt_vlan_s **pvlan, *vlan;
471 for (vlan = first_bt_vlan; vlan != NULL; vlan = vlan->next) {
472 if (vlan->id == id)
473 return &vlan->net;
474 }
475 vlan = qemu_mallocz(sizeof(struct bt_vlan_s));
476 vlan->id = id;
477 pvlan = &first_bt_vlan;
478 while (*pvlan != NULL)
479 pvlan = &(*pvlan)->next;
480 *pvlan = vlan;
481 return &vlan->net;
482 }
483
484 static void null_hci_send(struct HCIInfo *hci, const uint8_t *data, int len)
485 {
486 }
487
488 static int null_hci_addr_set(struct HCIInfo *hci, const uint8_t *bd_addr)
489 {
490 return -ENOTSUP;
491 }
492
493 static struct HCIInfo null_hci = {
494 .cmd_send = null_hci_send,
495 .sco_send = null_hci_send,
496 .acl_send = null_hci_send,
497 .bdaddr_set = null_hci_addr_set,
498 };
499
500 struct HCIInfo *qemu_next_hci(void)
501 {
502 if (cur_hci == nb_hcis)
503 return &null_hci;
504
505 return hci_table[cur_hci++];
506 }
507
508 static struct HCIInfo *hci_init(const char *str)
509 {
510 char *endp;
511 struct bt_scatternet_s *vlan = 0;
512
513 if (!strcmp(str, "null"))
514 /* null */
515 return &null_hci;
516 else if (!strncmp(str, "host", 4) && (str[4] == '\0' || str[4] == ':'))
517 /* host[:hciN] */
518 return bt_host_hci(str[4] ? str + 5 : "hci0");
519 else if (!strncmp(str, "hci", 3)) {
520 /* hci[,vlan=n] */
521 if (str[3]) {
522 if (!strncmp(str + 3, ",vlan=", 6)) {
523 vlan = qemu_find_bt_vlan(strtol(str + 9, &endp, 0));
524 if (*endp)
525 vlan = 0;
526 }
527 } else
528 vlan = qemu_find_bt_vlan(0);
529 if (vlan)
530 return bt_new_hci(vlan);
531 }
532
533 fprintf(stderr, "qemu: Unknown bluetooth HCI `%s'.\n", str);
534
535 return 0;
536 }
537
538 static int bt_hci_parse(const char *str)
539 {
540 struct HCIInfo *hci;
541 bdaddr_t bdaddr;
542
543 if (nb_hcis >= MAX_NICS) {
544 fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
545 return -1;
546 }
547
548 hci = hci_init(str);
549 if (!hci)
550 return -1;
551
552 bdaddr.b[0] = 0x52;
553 bdaddr.b[1] = 0x54;
554 bdaddr.b[2] = 0x00;
555 bdaddr.b[3] = 0x12;
556 bdaddr.b[4] = 0x34;
557 bdaddr.b[5] = 0x56 + nb_hcis;
558 hci->bdaddr_set(hci, bdaddr.b);
559
560 hci_table[nb_hcis++] = hci;
561
562 return 0;
563 }
564
565 static void bt_vhci_add(int vlan_id)
566 {
567 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
568
569 if (!vlan->slave)
570 fprintf(stderr, "qemu: warning: adding a VHCI to "
571 "an empty scatternet %i\n", vlan_id);
572
573 bt_vhci_init(bt_new_hci(vlan));
574 }
575
576 static struct bt_device_s *bt_device_add(const char *opt)
577 {
578 struct bt_scatternet_s *vlan;
579 int vlan_id = 0;
580 char *endp = strstr(opt, ",vlan=");
581 int len = (endp ? endp - opt : strlen(opt)) + 1;
582 char devname[10];
583
584 pstrcpy(devname, MIN(sizeof(devname), len), opt);
585
586 if (endp) {
587 vlan_id = strtol(endp + 6, &endp, 0);
588 if (*endp) {
589 fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
590 return 0;
591 }
592 }
593
594 vlan = qemu_find_bt_vlan(vlan_id);
595
596 if (!vlan->slave)
597 fprintf(stderr, "qemu: warning: adding a slave device to "
598 "an empty scatternet %i\n", vlan_id);
599
600 if (!strcmp(devname, "keyboard"))
601 return bt_keyboard_init(vlan);
602
603 fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
604 return 0;
605 }
606
607 static int bt_parse(const char *opt)
608 {
609 const char *endp, *p;
610 int vlan;
611
612 if (strstart(opt, "hci", &endp)) {
613 if (!*endp || *endp == ',') {
614 if (*endp)
615 if (!strstart(endp, ",vlan=", 0))
616 opt = endp + 1;
617
618 return bt_hci_parse(opt);
619 }
620 } else if (strstart(opt, "vhci", &endp)) {
621 if (!*endp || *endp == ',') {
622 if (*endp) {
623 if (strstart(endp, ",vlan=", &p)) {
624 vlan = strtol(p, (char **) &endp, 0);
625 if (*endp) {
626 fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
627 return 1;
628 }
629 } else {
630 fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1);
631 return 1;
632 }
633 } else
634 vlan = 0;
635
636 bt_vhci_add(vlan);
637 return 0;
638 }
639 } else if (strstart(opt, "device:", &endp))
640 return !bt_device_add(endp);
641
642 fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
643 return 1;
644 }
645
646 /***********************************************************/
647 /* QEMU Block devices */
648
649 #define HD_ALIAS "index=%d,media=disk"
650 #define CDROM_ALIAS "index=2,media=cdrom"
651 #define FD_ALIAS "index=%d,if=floppy"
652 #define PFLASH_ALIAS "if=pflash"
653 #define MTD_ALIAS "if=mtd"
654 #define SD_ALIAS "index=0,if=sd"
655
656 QemuOpts *drive_add(const char *file, const char *fmt, ...)
657 {
658 va_list ap;
659 char optstr[1024];
660 QemuOpts *opts;
661
662 va_start(ap, fmt);
663 vsnprintf(optstr, sizeof(optstr), fmt, ap);
664 va_end(ap);
665
666 opts = qemu_opts_parse(&qemu_drive_opts, optstr, 0);
667 if (!opts) {
668 return NULL;
669 }
670 if (file)
671 qemu_opt_set(opts, "file", file);
672 return opts;
673 }
674
675 DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit)
676 {
677 DriveInfo *dinfo;
678
679 /* seek interface, bus and unit */
680
681 QTAILQ_FOREACH(dinfo, &drives, next) {
682 if (dinfo->type == type &&
683 dinfo->bus == bus &&
684 dinfo->unit == unit)
685 return dinfo;
686 }
687
688 return NULL;
689 }
690
691 DriveInfo *drive_get_by_id(const char *id)
692 {
693 DriveInfo *dinfo;
694
695 QTAILQ_FOREACH(dinfo, &drives, next) {
696 if (strcmp(id, dinfo->id))
697 continue;
698 return dinfo;
699 }
700 return NULL;
701 }
702
703 int drive_get_max_bus(BlockInterfaceType type)
704 {
705 int max_bus;
706 DriveInfo *dinfo;
707
708 max_bus = -1;
709 QTAILQ_FOREACH(dinfo, &drives, next) {
710 if(dinfo->type == type &&
711 dinfo->bus > max_bus)
712 max_bus = dinfo->bus;
713 }
714 return max_bus;
715 }
716
717 const char *drive_get_serial(BlockDriverState *bdrv)
718 {
719 DriveInfo *dinfo;
720
721 QTAILQ_FOREACH(dinfo, &drives, next) {
722 if (dinfo->bdrv == bdrv)
723 return dinfo->serial;
724 }
725
726 return "\0";
727 }
728
729 BlockInterfaceErrorAction drive_get_on_error(
730 BlockDriverState *bdrv, int is_read)
731 {
732 DriveInfo *dinfo;
733
734 QTAILQ_FOREACH(dinfo, &drives, next) {
735 if (dinfo->bdrv == bdrv)
736 return is_read ? dinfo->on_read_error : dinfo->on_write_error;
737 }
738
739 return is_read ? BLOCK_ERR_REPORT : BLOCK_ERR_STOP_ENOSPC;
740 }
741
742 static void bdrv_format_print(void *opaque, const char *name)
743 {
744 fprintf(stderr, " %s", name);
745 }
746
747 void drive_uninit(DriveInfo *dinfo)
748 {
749 qemu_opts_del(dinfo->opts);
750 bdrv_delete(dinfo->bdrv);
751 QTAILQ_REMOVE(&drives, dinfo, next);
752 qemu_free(dinfo);
753 }
754
755 static int parse_block_error_action(const char *buf, int is_read)
756 {
757 if (!strcmp(buf, "ignore")) {
758 return BLOCK_ERR_IGNORE;
759 } else if (!is_read && !strcmp(buf, "enospc")) {
760 return BLOCK_ERR_STOP_ENOSPC;
761 } else if (!strcmp(buf, "stop")) {
762 return BLOCK_ERR_STOP_ANY;
763 } else if (!strcmp(buf, "report")) {
764 return BLOCK_ERR_REPORT;
765 } else {
766 fprintf(stderr, "qemu: '%s' invalid %s error action\n",
767 buf, is_read ? "read" : "write");
768 return -1;
769 }
770 }
771
772 DriveInfo *drive_init(QemuOpts *opts, void *opaque,
773 int *fatal_error)
774 {
775 const char *buf;
776 const char *file = NULL;
777 char devname[128];
778 const char *serial;
779 const char *mediastr = "";
780 BlockInterfaceType type;
781 enum { MEDIA_DISK, MEDIA_CDROM } media;
782 int bus_id, unit_id;
783 int cyls, heads, secs, translation;
784 BlockDriver *drv = NULL;
785 QEMUMachine *machine = opaque;
786 int max_devs;
787 int index;
788 int ro = 0;
789 int bdrv_flags = 0;
790 int on_read_error, on_write_error;
791 const char *devaddr;
792 DriveInfo *dinfo;
793 int snapshot = 0;
794
795 *fatal_error = 1;
796
797 translation = BIOS_ATA_TRANSLATION_AUTO;
798
799 if (machine && machine->use_scsi) {
800 type = IF_SCSI;
801 max_devs = MAX_SCSI_DEVS;
802 pstrcpy(devname, sizeof(devname), "scsi");
803 } else {
804 type = IF_IDE;
805 max_devs = MAX_IDE_DEVS;
806 pstrcpy(devname, sizeof(devname), "ide");
807 }
808 media = MEDIA_DISK;
809
810 /* extract parameters */
811 bus_id = qemu_opt_get_number(opts, "bus", 0);
812 unit_id = qemu_opt_get_number(opts, "unit", -1);
813 index = qemu_opt_get_number(opts, "index", -1);
814
815 cyls = qemu_opt_get_number(opts, "cyls", 0);
816 heads = qemu_opt_get_number(opts, "heads", 0);
817 secs = qemu_opt_get_number(opts, "secs", 0);
818
819 snapshot = qemu_opt_get_bool(opts, "snapshot", 0);
820 ro = qemu_opt_get_bool(opts, "readonly", 0);
821
822 file = qemu_opt_get(opts, "file");
823 serial = qemu_opt_get(opts, "serial");
824
825 if ((buf = qemu_opt_get(opts, "if")) != NULL) {
826 pstrcpy(devname, sizeof(devname), buf);
827 if (!strcmp(buf, "ide")) {
828 type = IF_IDE;
829 max_devs = MAX_IDE_DEVS;
830 } else if (!strcmp(buf, "scsi")) {
831 type = IF_SCSI;
832 max_devs = MAX_SCSI_DEVS;
833 } else if (!strcmp(buf, "floppy")) {
834 type = IF_FLOPPY;
835 max_devs = 0;
836 } else if (!strcmp(buf, "pflash")) {
837 type = IF_PFLASH;
838 max_devs = 0;
839 } else if (!strcmp(buf, "mtd")) {
840 type = IF_MTD;
841 max_devs = 0;
842 } else if (!strcmp(buf, "sd")) {
843 type = IF_SD;
844 max_devs = 0;
845 } else if (!strcmp(buf, "virtio")) {
846 type = IF_VIRTIO;
847 max_devs = 0;
848 } else if (!strcmp(buf, "xen")) {
849 type = IF_XEN;
850 max_devs = 0;
851 } else if (!strcmp(buf, "none")) {
852 type = IF_NONE;
853 max_devs = 0;
854 } else {
855 fprintf(stderr, "qemu: unsupported bus type '%s'\n", buf);
856 return NULL;
857 }
858 }
859
860 if (cyls || heads || secs) {
861 if (cyls < 1 || (type == IF_IDE && cyls > 16383)) {
862 fprintf(stderr, "qemu: '%s' invalid physical cyls number\n", buf);
863 return NULL;
864 }
865 if (heads < 1 || (type == IF_IDE && heads > 16)) {
866 fprintf(stderr, "qemu: '%s' invalid physical heads number\n", buf);
867 return NULL;
868 }
869 if (secs < 1 || (type == IF_IDE && secs > 63)) {
870 fprintf(stderr, "qemu: '%s' invalid physical secs number\n", buf);
871 return NULL;
872 }
873 }
874
875 if ((buf = qemu_opt_get(opts, "trans")) != NULL) {
876 if (!cyls) {
877 fprintf(stderr,
878 "qemu: '%s' trans must be used with cyls,heads and secs\n",
879 buf);
880 return NULL;
881 }
882 if (!strcmp(buf, "none"))
883 translation = BIOS_ATA_TRANSLATION_NONE;
884 else if (!strcmp(buf, "lba"))
885 translation = BIOS_ATA_TRANSLATION_LBA;
886 else if (!strcmp(buf, "auto"))
887 translation = BIOS_ATA_TRANSLATION_AUTO;
888 else {
889 fprintf(stderr, "qemu: '%s' invalid translation type\n", buf);
890 return NULL;
891 }
892 }
893
894 if ((buf = qemu_opt_get(opts, "media")) != NULL) {
895 if (!strcmp(buf, "disk")) {
896 media = MEDIA_DISK;
897 } else if (!strcmp(buf, "cdrom")) {
898 if (cyls || secs || heads) {
899 fprintf(stderr,
900 "qemu: '%s' invalid physical CHS format\n", buf);
901 return NULL;
902 }
903 media = MEDIA_CDROM;
904 } else {
905 fprintf(stderr, "qemu: '%s' invalid media\n", buf);
906 return NULL;
907 }
908 }
909
910 if ((buf = qemu_opt_get(opts, "cache")) != NULL) {
911 if (!strcmp(buf, "off") || !strcmp(buf, "none")) {
912 bdrv_flags |= BDRV_O_NOCACHE;
913 } else if (!strcmp(buf, "writeback")) {
914 bdrv_flags |= BDRV_O_CACHE_WB;
915 } else if (!strcmp(buf, "unsafe")) {
916 bdrv_flags |= BDRV_O_CACHE_WB;
917 bdrv_flags |= BDRV_O_NO_FLUSH;
918 } else if (!strcmp(buf, "writethrough")) {
919 /* this is the default */
920 } else {
921 fprintf(stderr, "qemu: invalid cache option\n");
922 return NULL;
923 }
924 }
925
926 #ifdef CONFIG_LINUX_AIO
927 if ((buf = qemu_opt_get(opts, "aio")) != NULL) {
928 if (!strcmp(buf, "native")) {
929 bdrv_flags |= BDRV_O_NATIVE_AIO;
930 } else if (!strcmp(buf, "threads")) {
931 /* this is the default */
932 } else {
933 fprintf(stderr, "qemu: invalid aio option\n");
934 return NULL;
935 }
936 }
937 #endif
938
939 if ((buf = qemu_opt_get(opts, "format")) != NULL) {
940 if (strcmp(buf, "?") == 0) {
941 fprintf(stderr, "qemu: Supported formats:");
942 bdrv_iterate_format(bdrv_format_print, NULL);
943 fprintf(stderr, "\n");
944 return NULL;
945 }
946 drv = bdrv_find_whitelisted_format(buf);
947 if (!drv) {
948 fprintf(stderr, "qemu: '%s' invalid format\n", buf);
949 return NULL;
950 }
951 }
952
953 on_write_error = BLOCK_ERR_STOP_ENOSPC;
954 if ((buf = qemu_opt_get(opts, "werror")) != NULL) {
955 if (type != IF_IDE && type != IF_SCSI && type != IF_VIRTIO && type != IF_NONE) {
956 fprintf(stderr, "werror is no supported by this format\n");
957 return NULL;
958 }
959
960 on_write_error = parse_block_error_action(buf, 0);
961 if (on_write_error < 0) {
962 return NULL;
963 }
964 }
965
966 on_read_error = BLOCK_ERR_REPORT;
967 if ((buf = qemu_opt_get(opts, "rerror")) != NULL) {
968 if (type != IF_IDE && type != IF_VIRTIO && type != IF_NONE) {
969 fprintf(stderr, "rerror is no supported by this format\n");
970 return NULL;
971 }
972
973 on_read_error = parse_block_error_action(buf, 1);
974 if (on_read_error < 0) {
975 return NULL;
976 }
977 }
978
979 if ((devaddr = qemu_opt_get(opts, "addr")) != NULL) {
980 if (type != IF_VIRTIO) {
981 fprintf(stderr, "addr is not supported\n");
982 return NULL;
983 }
984 }
985
986 /* compute bus and unit according index */
987
988 if (index != -1) {
989 if (bus_id != 0 || unit_id != -1) {
990 fprintf(stderr,
991 "qemu: index cannot be used with bus and unit\n");
992 return NULL;
993 }
994 if (max_devs == 0)
995 {
996 unit_id = index;
997 bus_id = 0;
998 } else {
999 unit_id = index % max_devs;
1000 bus_id = index / max_devs;
1001 }
1002 }
1003
1004 /* if user doesn't specify a unit_id,
1005 * try to find the first free
1006 */
1007
1008 if (unit_id == -1) {
1009 unit_id = 0;
1010 while (drive_get(type, bus_id, unit_id) != NULL) {
1011 unit_id++;
1012 if (max_devs && unit_id >= max_devs) {
1013 unit_id -= max_devs;
1014 bus_id++;
1015 }
1016 }
1017 }
1018
1019 /* check unit id */
1020
1021 if (max_devs && unit_id >= max_devs) {
1022 fprintf(stderr, "qemu: unit %d too big (max is %d)\n",
1023 unit_id, max_devs - 1);
1024 return NULL;
1025 }
1026
1027 /*
1028 * ignore multiple definitions
1029 */
1030
1031 if (drive_get(type, bus_id, unit_id) != NULL) {
1032 *fatal_error = 0;
1033 return NULL;
1034 }
1035
1036 /* init */
1037
1038 dinfo = qemu_mallocz(sizeof(*dinfo));
1039 if ((buf = qemu_opts_id(opts)) != NULL) {
1040 dinfo->id = qemu_strdup(buf);
1041 } else {
1042 /* no id supplied -> create one */
1043 dinfo->id = qemu_mallocz(32);
1044 if (type == IF_IDE || type == IF_SCSI)
1045 mediastr = (media == MEDIA_CDROM) ? "-cd" : "-hd";
1046 if (max_devs)
1047 snprintf(dinfo->id, 32, "%s%i%s%i",
1048 devname, bus_id, mediastr, unit_id);
1049 else
1050 snprintf(dinfo->id, 32, "%s%s%i",
1051 devname, mediastr, unit_id);
1052 }
1053 dinfo->bdrv = bdrv_new(dinfo->id);
1054 dinfo->devaddr = devaddr;
1055 dinfo->type = type;
1056 dinfo->bus = bus_id;
1057 dinfo->unit = unit_id;
1058 dinfo->on_read_error = on_read_error;
1059 dinfo->on_write_error = on_write_error;
1060 dinfo->opts = opts;
1061 if (serial)
1062 strncpy(dinfo->serial, serial, sizeof(serial));
1063 QTAILQ_INSERT_TAIL(&drives, dinfo, next);
1064
1065 switch(type) {
1066 case IF_IDE:
1067 case IF_SCSI:
1068 case IF_XEN:
1069 case IF_NONE:
1070 switch(media) {
1071 case MEDIA_DISK:
1072 if (cyls != 0) {
1073 bdrv_set_geometry_hint(dinfo->bdrv, cyls, heads, secs);
1074 bdrv_set_translation_hint(dinfo->bdrv, translation);
1075 }
1076 break;
1077 case MEDIA_CDROM:
1078 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_CDROM);
1079 break;
1080 }
1081 break;
1082 case IF_SD:
1083 /* FIXME: This isn't really a floppy, but it's a reasonable
1084 approximation. */
1085 case IF_FLOPPY:
1086 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_FLOPPY);
1087 break;
1088 case IF_PFLASH:
1089 case IF_MTD:
1090 break;
1091 case IF_VIRTIO:
1092 /* add virtio block device */
1093 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
1094 qemu_opt_set(opts, "driver", "virtio-blk-pci");
1095 qemu_opt_set(opts, "drive", dinfo->id);
1096 if (devaddr)
1097 qemu_opt_set(opts, "addr", devaddr);
1098 break;
1099 case IF_COUNT:
1100 abort();
1101 }
1102 if (!file) {
1103 *fatal_error = 0;
1104 return NULL;
1105 }
1106 if (snapshot) {
1107 /* always use cache=unsafe with snapshot */
1108 bdrv_flags &= ~BDRV_O_CACHE_MASK;
1109 bdrv_flags |= (BDRV_O_SNAPSHOT|BDRV_O_CACHE_WB|BDRV_O_NO_FLUSH);
1110 }
1111
1112 if (media == MEDIA_CDROM) {
1113 /* CDROM is fine for any interface, don't check. */
1114 ro = 1;
1115 } else if (ro == 1) {
1116 if (type != IF_SCSI && type != IF_VIRTIO && type != IF_FLOPPY && type != IF_NONE) {
1117 fprintf(stderr, "qemu: readonly flag not supported for drive with this interface\n");
1118 return NULL;
1119 }
1120 }
1121
1122 bdrv_flags |= ro ? 0 : BDRV_O_RDWR;
1123
1124 if (bdrv_open(dinfo->bdrv, file, bdrv_flags, drv) < 0) {
1125 fprintf(stderr, "qemu: could not open disk image %s: %s\n",
1126 file, strerror(errno));
1127 return NULL;
1128 }
1129
1130 if (bdrv_key_required(dinfo->bdrv))
1131 autostart = 0;
1132 *fatal_error = 0;
1133 return dinfo;
1134 }
1135
1136 static int drive_init_func(QemuOpts *opts, void *opaque)
1137 {
1138 QEMUMachine *machine = opaque;
1139 int fatal_error = 0;
1140
1141 if (drive_init(opts, machine, &fatal_error) == NULL) {
1142 if (fatal_error)
1143 return 1;
1144 }
1145 return 0;
1146 }
1147
1148 static int drive_enable_snapshot(QemuOpts *opts, void *opaque)
1149 {
1150 if (NULL == qemu_opt_get(opts, "snapshot")) {
1151 qemu_opt_set(opts, "snapshot", "on");
1152 }
1153 return 0;
1154 }
1155
1156 void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
1157 {
1158 boot_set_handler = func;
1159 boot_set_opaque = opaque;
1160 }
1161
1162 int qemu_boot_set(const char *boot_devices)
1163 {
1164 if (!boot_set_handler) {
1165 return -EINVAL;
1166 }
1167 return boot_set_handler(boot_set_opaque, boot_devices);
1168 }
1169
1170 static void validate_bootdevices(char *devices)
1171 {
1172 /* We just do some generic consistency checks */
1173 const char *p;
1174 int bitmap = 0;
1175
1176 for (p = devices; *p != '\0'; p++) {
1177 /* Allowed boot devices are:
1178 * a-b: floppy disk drives
1179 * c-f: IDE disk drives
1180 * g-m: machine implementation dependant drives
1181 * n-p: network devices
1182 * It's up to each machine implementation to check if the given boot
1183 * devices match the actual hardware implementation and firmware
1184 * features.
1185 */
1186 if (*p < 'a' || *p > 'p') {
1187 fprintf(stderr, "Invalid boot device '%c'\n", *p);
1188 exit(1);
1189 }
1190 if (bitmap & (1 << (*p - 'a'))) {
1191 fprintf(stderr, "Boot device '%c' was given twice\n", *p);
1192 exit(1);
1193 }
1194 bitmap |= 1 << (*p - 'a');
1195 }
1196 }
1197
1198 static void restore_boot_devices(void *opaque)
1199 {
1200 char *standard_boot_devices = opaque;
1201 static int first = 1;
1202
1203 /* Restore boot order and remove ourselves after the first boot */
1204 if (first) {
1205 first = 0;
1206 return;
1207 }
1208
1209 qemu_boot_set(standard_boot_devices);
1210
1211 qemu_unregister_reset(restore_boot_devices, standard_boot_devices);
1212 qemu_free(standard_boot_devices);
1213 }
1214
1215 static void numa_add(const char *optarg)
1216 {
1217 char option[128];
1218 char *endptr;
1219 unsigned long long value, endvalue;
1220 int nodenr;
1221
1222 optarg = get_opt_name(option, 128, optarg, ',') + 1;
1223 if (!strcmp(option, "node")) {
1224 if (get_param_value(option, 128, "nodeid", optarg) == 0) {
1225 nodenr = nb_numa_nodes;
1226 } else {
1227 nodenr = strtoull(option, NULL, 10);
1228 }
1229
1230 if (get_param_value(option, 128, "mem", optarg) == 0) {
1231 node_mem[nodenr] = 0;
1232 } else {
1233 value = strtoull(option, &endptr, 0);
1234 switch (*endptr) {
1235 case 0: case 'M': case 'm':
1236 value <<= 20;
1237 break;
1238 case 'G': case 'g':
1239 value <<= 30;
1240 break;
1241 }
1242 node_mem[nodenr] = value;
1243 }
1244 if (get_param_value(option, 128, "cpus", optarg) == 0) {
1245 node_cpumask[nodenr] = 0;
1246 } else {
1247 value = strtoull(option, &endptr, 10);
1248 if (value >= 64) {
1249 value = 63;
1250 fprintf(stderr, "only 64 CPUs in NUMA mode supported.\n");
1251 } else {
1252 if (*endptr == '-') {
1253 endvalue = strtoull(endptr+1, &endptr, 10);
1254 if (endvalue >= 63) {
1255 endvalue = 62;
1256 fprintf(stderr,
1257 "only 63 CPUs in NUMA mode supported.\n");
1258 }
1259 value = (2ULL << endvalue) - (1ULL << value);
1260 } else {
1261 value = 1ULL << value;
1262 }
1263 }
1264 node_cpumask[nodenr] = value;
1265 }
1266 nb_numa_nodes++;
1267 }
1268 return;
1269 }
1270
1271 static void smp_parse(const char *optarg)
1272 {
1273 int smp, sockets = 0, threads = 0, cores = 0;
1274 char *endptr;
1275 char option[128];
1276
1277 smp = strtoul(optarg, &endptr, 10);
1278 if (endptr != optarg) {
1279 if (*endptr == ',') {
1280 endptr++;
1281 }
1282 }
1283 if (get_param_value(option, 128, "sockets", endptr) != 0)
1284 sockets = strtoull(option, NULL, 10);
1285 if (get_param_value(option, 128, "cores", endptr) != 0)
1286 cores = strtoull(option, NULL, 10);
1287 if (get_param_value(option, 128, "threads", endptr) != 0)
1288 threads = strtoull(option, NULL, 10);
1289 if (get_param_value(option, 128, "maxcpus", endptr) != 0)
1290 max_cpus = strtoull(option, NULL, 10);
1291
1292 /* compute missing values, prefer sockets over cores over threads */
1293 if (smp == 0 || sockets == 0) {
1294 sockets = sockets > 0 ? sockets : 1;
1295 cores = cores > 0 ? cores : 1;
1296 threads = threads > 0 ? threads : 1;
1297 if (smp == 0) {
1298 smp = cores * threads * sockets;
1299 }
1300 } else {
1301 if (cores == 0) {
1302 threads = threads > 0 ? threads : 1;
1303 cores = smp / (sockets * threads);
1304 } else {
1305 if (sockets) {
1306 threads = smp / (cores * sockets);
1307 }
1308 }
1309 }
1310 smp_cpus = smp;
1311 smp_cores = cores > 0 ? cores : 1;
1312 smp_threads = threads > 0 ? threads : 1;
1313 if (max_cpus == 0)
1314 max_cpus = smp_cpus;
1315 }
1316
1317 /***********************************************************/
1318 /* USB devices */
1319
1320 static int usb_device_add(const char *devname, int is_hotplug)
1321 {
1322 const char *p;
1323 USBDevice *dev = NULL;
1324
1325 if (!usb_enabled)
1326 return -1;
1327
1328 /* drivers with .usbdevice_name entry in USBDeviceInfo */
1329 dev = usbdevice_create(devname);
1330 if (dev)
1331 goto done;
1332
1333 /* the other ones */
1334 if (strstart(devname, "host:", &p)) {
1335 dev = usb_host_device_open(p);
1336 } else if (!strcmp(devname, "bt") || strstart(devname, "bt:", &p)) {
1337 dev = usb_bt_init(devname[2] ? hci_init(p) :
1338 bt_new_hci(qemu_find_bt_vlan(0)));
1339 } else {
1340 return -1;
1341 }
1342 if (!dev)
1343 return -1;
1344
1345 done:
1346 return 0;
1347 }
1348
1349 static int usb_device_del(const char *devname)
1350 {
1351 int bus_num, addr;
1352 const char *p;
1353
1354 if (strstart(devname, "host:", &p))
1355 return usb_host_device_close(p);
1356
1357 if (!usb_enabled)
1358 return -1;
1359
1360 p = strchr(devname, '.');
1361 if (!p)
1362 return -1;
1363 bus_num = strtoul(devname, NULL, 0);
1364 addr = strtoul(p + 1, NULL, 0);
1365
1366 return usb_device_delete_addr(bus_num, addr);
1367 }
1368
1369 static int usb_parse(const char *cmdline)
1370 {
1371 int r;
1372 r = usb_device_add(cmdline, 0);
1373 if (r < 0) {
1374 fprintf(stderr, "qemu: could not add USB device '%s'\n", cmdline);
1375 }
1376 return r;
1377 }
1378
1379 void do_usb_add(Monitor *mon, const QDict *qdict)
1380 {
1381 const char *devname = qdict_get_str(qdict, "devname");
1382 if (usb_device_add(devname, 1) < 0) {
1383 error_report("could not add USB device '%s'", devname);
1384 }
1385 }
1386
1387 void do_usb_del(Monitor *mon, const QDict *qdict)
1388 {
1389 const char *devname = qdict_get_str(qdict, "devname");
1390 if (usb_device_del(devname) < 0) {
1391 error_report("could not delete USB device '%s'", devname);
1392 }
1393 }
1394
1395 /***********************************************************/
1396 /* PCMCIA/Cardbus */
1397
1398 static struct pcmcia_socket_entry_s {
1399 PCMCIASocket *socket;
1400 struct pcmcia_socket_entry_s *next;
1401 } *pcmcia_sockets = 0;
1402
1403 void pcmcia_socket_register(PCMCIASocket *socket)
1404 {
1405 struct pcmcia_socket_entry_s *entry;
1406
1407 entry = qemu_malloc(sizeof(struct pcmcia_socket_entry_s));
1408 entry->socket = socket;
1409 entry->next = pcmcia_sockets;
1410 pcmcia_sockets = entry;
1411 }
1412
1413 void pcmcia_socket_unregister(PCMCIASocket *socket)
1414 {
1415 struct pcmcia_socket_entry_s *entry, **ptr;
1416
1417 ptr = &pcmcia_sockets;
1418 for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
1419 if (entry->socket == socket) {
1420 *ptr = entry->next;
1421 qemu_free(entry);
1422 }
1423 }
1424
1425 void pcmcia_info(Monitor *mon)
1426 {
1427 struct pcmcia_socket_entry_s *iter;
1428
1429 if (!pcmcia_sockets)
1430 monitor_printf(mon, "No PCMCIA sockets\n");
1431
1432 for (iter = pcmcia_sockets; iter; iter = iter->next)
1433 monitor_printf(mon, "%s: %s\n", iter->socket->slot_string,
1434 iter->socket->attached ? iter->socket->card_string :
1435 "Empty");
1436 }
1437
1438 /***********************************************************/
1439 /* I/O handling */
1440
1441 typedef struct IOHandlerRecord {
1442 int fd;
1443 IOCanReadHandler *fd_read_poll;
1444 IOHandler *fd_read;
1445 IOHandler *fd_write;
1446 int deleted;
1447 void *opaque;
1448 /* temporary data */
1449 struct pollfd *ufd;
1450 QLIST_ENTRY(IOHandlerRecord) next;
1451 } IOHandlerRecord;
1452
1453 static QLIST_HEAD(, IOHandlerRecord) io_handlers =
1454 QLIST_HEAD_INITIALIZER(io_handlers);
1455
1456
1457 /* XXX: fd_read_poll should be suppressed, but an API change is
1458 necessary in the character devices to suppress fd_can_read(). */
1459 int qemu_set_fd_handler2(int fd,
1460 IOCanReadHandler *fd_read_poll,
1461 IOHandler *fd_read,
1462 IOHandler *fd_write,
1463 void *opaque)
1464 {
1465 IOHandlerRecord *ioh;
1466
1467 if (!fd_read && !fd_write) {
1468 QLIST_FOREACH(ioh, &io_handlers, next) {
1469 if (ioh->fd == fd) {
1470 ioh->deleted = 1;
1471 break;
1472 }
1473 }
1474 } else {
1475 QLIST_FOREACH(ioh, &io_handlers, next) {
1476 if (ioh->fd == fd)
1477 goto found;
1478 }
1479 ioh = qemu_mallocz(sizeof(IOHandlerRecord));
1480 QLIST_INSERT_HEAD(&io_handlers, ioh, next);
1481 found:
1482 ioh->fd = fd;
1483 ioh->fd_read_poll = fd_read_poll;
1484 ioh->fd_read = fd_read;
1485 ioh->fd_write = fd_write;
1486 ioh->opaque = opaque;
1487 ioh->deleted = 0;
1488 }
1489 return 0;
1490 }
1491
1492 int qemu_set_fd_handler(int fd,
1493 IOHandler *fd_read,
1494 IOHandler *fd_write,
1495 void *opaque)
1496 {
1497 return qemu_set_fd_handler2(fd, NULL, fd_read, fd_write, opaque);
1498 }
1499
1500 #ifdef _WIN32
1501 /***********************************************************/
1502 /* Polling handling */
1503
1504 typedef struct PollingEntry {
1505 PollingFunc *func;
1506 void *opaque;
1507 struct PollingEntry *next;
1508 } PollingEntry;
1509
1510 static PollingEntry *first_polling_entry;
1511
1512 int qemu_add_polling_cb(PollingFunc *func, void *opaque)
1513 {
1514 PollingEntry **ppe, *pe;
1515 pe = qemu_mallocz(sizeof(PollingEntry));
1516 pe->func = func;
1517 pe->opaque = opaque;
1518 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next);
1519 *ppe = pe;
1520 return 0;
1521 }
1522
1523 void qemu_del_polling_cb(PollingFunc *func, void *opaque)
1524 {
1525 PollingEntry **ppe, *pe;
1526 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next) {
1527 pe = *ppe;
1528 if (pe->func == func && pe->opaque == opaque) {
1529 *ppe = pe->next;
1530 qemu_free(pe);
1531 break;
1532 }
1533 }
1534 }
1535
1536 /***********************************************************/
1537 /* Wait objects support */
1538 typedef struct WaitObjects {
1539 int num;
1540 HANDLE events[MAXIMUM_WAIT_OBJECTS + 1];
1541 WaitObjectFunc *func[MAXIMUM_WAIT_OBJECTS + 1];
1542 void *opaque[MAXIMUM_WAIT_OBJECTS + 1];
1543 } WaitObjects;
1544
1545 static WaitObjects wait_objects = {0};
1546
1547 int qemu_add_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
1548 {
1549 WaitObjects *w = &wait_objects;
1550
1551 if (w->num >= MAXIMUM_WAIT_OBJECTS)
1552 return -1;
1553 w->events[w->num] = handle;
1554 w->func[w->num] = func;
1555 w->opaque[w->num] = opaque;
1556 w->num++;
1557 return 0;
1558 }
1559
1560 void qemu_del_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
1561 {
1562 int i, found;
1563 WaitObjects *w = &wait_objects;
1564
1565 found = 0;
1566 for (i = 0; i < w->num; i++) {
1567 if (w->events[i] == handle)
1568 found = 1;
1569 if (found) {
1570 w->events[i] = w->events[i + 1];
1571 w->func[i] = w->func[i + 1];
1572 w->opaque[i] = w->opaque[i + 1];
1573 }
1574 }
1575 if (found)
1576 w->num--;
1577 }
1578 #endif
1579
1580 /***********************************************************/
1581 /* machine registration */
1582
1583 static QEMUMachine *first_machine = NULL;
1584 QEMUMachine *current_machine = NULL;
1585
1586 int qemu_register_machine(QEMUMachine *m)
1587 {
1588 QEMUMachine **pm;
1589 pm = &first_machine;
1590 while (*pm != NULL)
1591 pm = &(*pm)->next;
1592 m->next = NULL;
1593 *pm = m;
1594 return 0;
1595 }
1596
1597 static QEMUMachine *find_machine(const char *name)
1598 {
1599 QEMUMachine *m;
1600
1601 for(m = first_machine; m != NULL; m = m->next) {
1602 if (!strcmp(m->name, name))
1603 return m;
1604 if (m->alias && !strcmp(m->alias, name))
1605 return m;
1606 }
1607 return NULL;
1608 }
1609
1610 static QEMUMachine *find_default_machine(void)
1611 {
1612 QEMUMachine *m;
1613
1614 for(m = first_machine; m != NULL; m = m->next) {
1615 if (m->is_default) {
1616 return m;
1617 }
1618 }
1619 return NULL;
1620 }
1621
1622 /***********************************************************/
1623 /* main execution loop */
1624
1625 static void gui_update(void *opaque)
1626 {
1627 uint64_t interval = GUI_REFRESH_INTERVAL;
1628 DisplayState *ds = opaque;
1629 DisplayChangeListener *dcl = ds->listeners;
1630
1631 qemu_flush_coalesced_mmio_buffer();
1632 dpy_refresh(ds);
1633
1634 while (dcl != NULL) {
1635 if (dcl->gui_timer_interval &&
1636 dcl->gui_timer_interval < interval)
1637 interval = dcl->gui_timer_interval;
1638 dcl = dcl->next;
1639 }
1640 qemu_mod_timer(ds->gui_timer, interval + qemu_get_clock(rt_clock));
1641 }
1642
1643 static void nographic_update(void *opaque)
1644 {
1645 uint64_t interval = GUI_REFRESH_INTERVAL;
1646
1647 qemu_flush_coalesced_mmio_buffer();
1648 qemu_mod_timer(nographic_timer, interval + qemu_get_clock(rt_clock));
1649 }
1650
1651 struct vm_change_state_entry {
1652 VMChangeStateHandler *cb;
1653 void *opaque;
1654 QLIST_ENTRY (vm_change_state_entry) entries;
1655 };
1656
1657 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1658
1659 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1660 void *opaque)
1661 {
1662 VMChangeStateEntry *e;
1663
1664 e = qemu_mallocz(sizeof (*e));
1665
1666 e->cb = cb;
1667 e->opaque = opaque;
1668 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1669 return e;
1670 }
1671
1672 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1673 {
1674 QLIST_REMOVE (e, entries);
1675 qemu_free (e);
1676 }
1677
1678 void vm_state_notify(int running, int reason)
1679 {
1680 VMChangeStateEntry *e;
1681
1682 for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
1683 e->cb(e->opaque, running, reason);
1684 }
1685 }
1686
1687 void vm_start(void)
1688 {
1689 if (!vm_running) {
1690 cpu_enable_ticks();
1691 vm_running = 1;
1692 vm_state_notify(1, 0);
1693 resume_all_vcpus();
1694 monitor_protocol_event(QEVENT_RESUME, NULL);
1695 }
1696 }
1697
1698 /* reset/shutdown handler */
1699
1700 typedef struct QEMUResetEntry {
1701 QTAILQ_ENTRY(QEMUResetEntry) entry;
1702 QEMUResetHandler *func;
1703 void *opaque;
1704 } QEMUResetEntry;
1705
1706 static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
1707 QTAILQ_HEAD_INITIALIZER(reset_handlers);
1708 static int reset_requested;
1709 static int shutdown_requested;
1710 static int powerdown_requested;
1711 int debug_requested;
1712 int vmstop_requested;
1713
1714 int qemu_shutdown_requested(void)
1715 {
1716 int r = shutdown_requested;
1717 shutdown_requested = 0;
1718 return r;
1719 }
1720
1721 int qemu_reset_requested(void)
1722 {
1723 int r = reset_requested;
1724 reset_requested = 0;
1725 return r;
1726 }
1727
1728 int qemu_powerdown_requested(void)
1729 {
1730 int r = powerdown_requested;
1731 powerdown_requested = 0;
1732 return r;
1733 }
1734
1735 static int qemu_debug_requested(void)
1736 {
1737 int r = debug_requested;
1738 debug_requested = 0;
1739 return r;
1740 }
1741
1742 static int qemu_vmstop_requested(void)
1743 {
1744 int r = vmstop_requested;
1745 vmstop_requested = 0;
1746 return r;
1747 }
1748
1749 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
1750 {
1751 QEMUResetEntry *re = qemu_mallocz(sizeof(QEMUResetEntry));
1752
1753 re->func = func;
1754 re->opaque = opaque;
1755 QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
1756 }
1757
1758 void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
1759 {
1760 QEMUResetEntry *re;
1761
1762 QTAILQ_FOREACH(re, &reset_handlers, entry) {
1763 if (re->func == func && re->opaque == opaque) {
1764 QTAILQ_REMOVE(&reset_handlers, re, entry);
1765 qemu_free(re);
1766 return;
1767 }
1768 }
1769 }
1770
1771 void qemu_system_reset(void)
1772 {
1773 QEMUResetEntry *re, *nre;
1774
1775 /* reset all devices */
1776 QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
1777 re->func(re->opaque);
1778 }
1779 monitor_protocol_event(QEVENT_RESET, NULL);
1780 cpu_synchronize_all_post_reset();
1781 }
1782
1783 void qemu_system_reset_request(void)
1784 {
1785 if (no_reboot) {
1786 shutdown_requested = 1;
1787 } else {
1788 reset_requested = 1;
1789 }
1790 qemu_notify_event();
1791 }
1792
1793 void qemu_system_shutdown_request(void)
1794 {
1795 shutdown_requested = 1;
1796 qemu_notify_event();
1797 }
1798
1799 void qemu_system_powerdown_request(void)
1800 {
1801 powerdown_requested = 1;
1802 qemu_notify_event();
1803 }
1804
1805 #ifdef _WIN32
1806 static void host_main_loop_wait(int *timeout)
1807 {
1808 int ret, ret2, i;
1809 PollingEntry *pe;
1810
1811
1812 /* XXX: need to suppress polling by better using win32 events */
1813 ret = 0;
1814 for(pe = first_polling_entry; pe != NULL; pe = pe->next) {
1815 ret |= pe->func(pe->opaque);
1816 }
1817 if (ret == 0) {
1818 int err;
1819 WaitObjects *w = &wait_objects;
1820
1821 ret = WaitForMultipleObjects(w->num, w->events, FALSE, *timeout);
1822 if (WAIT_OBJECT_0 + 0 <= ret && ret <= WAIT_OBJECT_0 + w->num - 1) {
1823 if (w->func[ret - WAIT_OBJECT_0])
1824 w->func[ret - WAIT_OBJECT_0](w->opaque[ret - WAIT_OBJECT_0]);
1825
1826 /* Check for additional signaled events */
1827 for(i = (ret - WAIT_OBJECT_0 + 1); i < w->num; i++) {
1828
1829 /* Check if event is signaled */
1830 ret2 = WaitForSingleObject(w->events[i], 0);
1831 if(ret2 == WAIT_OBJECT_0) {
1832 if (w->func[i])
1833 w->func[i](w->opaque[i]);
1834 } else if (ret2 == WAIT_TIMEOUT) {
1835 } else {
1836 err = GetLastError();
1837 fprintf(stderr, "WaitForSingleObject error %d %d\n", i, err);
1838 }
1839 }
1840 } else if (ret == WAIT_TIMEOUT) {
1841 } else {
1842 err = GetLastError();
1843 fprintf(stderr, "WaitForMultipleObjects error %d %d\n", ret, err);
1844 }
1845 }
1846
1847 *timeout = 0;
1848 }
1849 #else
1850 static void host_main_loop_wait(int *timeout)
1851 {
1852 }
1853 #endif
1854
1855 void main_loop_wait(int nonblocking)
1856 {
1857 IOHandlerRecord *ioh;
1858 fd_set rfds, wfds, xfds;
1859 int ret, nfds;
1860 struct timeval tv;
1861 int timeout;
1862
1863 if (nonblocking)
1864 timeout = 0;
1865 else {
1866 timeout = qemu_calculate_timeout();
1867 qemu_bh_update_timeout(&timeout);
1868 }
1869
1870 host_main_loop_wait(&timeout);
1871
1872 /* poll any events */
1873 /* XXX: separate device handlers from system ones */
1874 nfds = -1;
1875 FD_ZERO(&rfds);
1876 FD_ZERO(&wfds);
1877 FD_ZERO(&xfds);
1878 QLIST_FOREACH(ioh, &io_handlers, next) {
1879 if (ioh->deleted)
1880 continue;
1881 if (ioh->fd_read &&
1882 (!ioh->fd_read_poll ||
1883 ioh->fd_read_poll(ioh->opaque) != 0)) {
1884 FD_SET(ioh->fd, &rfds);
1885 if (ioh->fd > nfds)
1886 nfds = ioh->fd;
1887 }
1888 if (ioh->fd_write) {
1889 FD_SET(ioh->fd, &wfds);
1890 if (ioh->fd > nfds)
1891 nfds = ioh->fd;
1892 }
1893 }
1894
1895 tv.tv_sec = timeout / 1000;
1896 tv.tv_usec = (timeout % 1000) * 1000;
1897
1898 slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
1899
1900 qemu_mutex_unlock_iothread();
1901 ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
1902 qemu_mutex_lock_iothread();
1903 if (ret > 0) {
1904 IOHandlerRecord *pioh;
1905
1906 QLIST_FOREACH_SAFE(ioh, &io_handlers, next, pioh) {
1907 if (ioh->deleted) {
1908 QLIST_REMOVE(ioh, next);
1909 qemu_free(ioh);
1910 continue;
1911 }
1912 if (ioh->fd_read && FD_ISSET(ioh->fd, &rfds)) {
1913 ioh->fd_read(ioh->opaque);
1914 }
1915 if (ioh->fd_write && FD_ISSET(ioh->fd, &wfds)) {
1916 ioh->fd_write(ioh->opaque);
1917 }
1918 }
1919 }
1920
1921 slirp_select_poll(&rfds, &wfds, &xfds, (ret < 0));
1922
1923 qemu_run_all_timers();
1924
1925 /* Check bottom-halves last in case any of the earlier events triggered
1926 them. */
1927 qemu_bh_poll();
1928
1929 }
1930
1931 static int vm_can_run(void)
1932 {
1933 if (powerdown_requested)
1934 return 0;
1935 if (reset_requested)
1936 return 0;
1937 if (shutdown_requested)
1938 return 0;
1939 if (debug_requested)
1940 return 0;
1941 return 1;
1942 }
1943
1944 qemu_irq qemu_system_powerdown;
1945
1946 static void main_loop(void)
1947 {
1948 int r;
1949
1950 qemu_main_loop_start();
1951
1952 for (;;) {
1953 do {
1954 bool nonblocking = false;
1955 #ifdef CONFIG_PROFILER
1956 int64_t ti;
1957 #endif
1958 #ifndef CONFIG_IOTHREAD
1959 nonblocking = tcg_cpu_exec();
1960 #endif
1961 #ifdef CONFIG_PROFILER
1962 ti = profile_getclock();
1963 #endif
1964 main_loop_wait(nonblocking);
1965 #ifdef CONFIG_PROFILER
1966 dev_time += profile_getclock() - ti;
1967 #endif
1968 } while (vm_can_run());
1969
1970 if ((r = qemu_debug_requested())) {
1971 vm_stop(r);
1972 }
1973 if (qemu_shutdown_requested()) {
1974 monitor_protocol_event(QEVENT_SHUTDOWN, NULL);
1975 if (no_shutdown) {
1976 vm_stop(0);
1977 no_shutdown = 0;
1978 } else
1979 break;
1980 }
1981 if (qemu_reset_requested()) {
1982 pause_all_vcpus();
1983 qemu_system_reset();
1984 resume_all_vcpus();
1985 }
1986 if (qemu_powerdown_requested()) {
1987 monitor_protocol_event(QEVENT_POWERDOWN, NULL);
1988 qemu_irq_raise(qemu_system_powerdown);
1989 }
1990 if ((r = qemu_vmstop_requested())) {
1991 vm_stop(r);
1992 }
1993 }
1994 pause_all_vcpus();
1995 }
1996
1997 static void version(void)
1998 {
1999 printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
2000 }
2001
2002 static void help(int exitcode)
2003 {
2004 const char *options_help =
2005 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
2006 opt_help
2007 #define DEFHEADING(text) stringify(text) "\n"
2008 #include "qemu-options.h"
2009 #undef DEF
2010 #undef DEFHEADING
2011 #undef GEN_DOCS
2012 ;
2013 version();
2014 printf("usage: %s [options] [disk_image]\n"
2015 "\n"
2016 "'disk_image' is a raw hard disk image for IDE hard disk 0\n"
2017 "\n"
2018 "%s\n"
2019 "During emulation, the following keys are useful:\n"
2020 "ctrl-alt-f toggle full screen\n"
2021 "ctrl-alt-n switch to virtual console 'n'\n"
2022 "ctrl-alt toggle mouse and keyboard grab\n"
2023 "\n"
2024 "When using -nographic, press 'ctrl-a h' to get some help.\n",
2025 "qemu",
2026 options_help);
2027 exit(exitcode);
2028 }
2029
2030 #define HAS_ARG 0x0001
2031
2032 enum {
2033 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
2034 opt_enum,
2035 #define DEFHEADING(text)
2036 #include "qemu-options.h"
2037 #undef DEF
2038 #undef DEFHEADING
2039 #undef GEN_DOCS
2040 };
2041
2042 typedef struct QEMUOption {
2043 const char *name;
2044 int flags;
2045 int index;
2046 uint32_t arch_mask;
2047 } QEMUOption;
2048
2049 static const QEMUOption qemu_options[] = {
2050 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
2051 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
2052 { option, opt_arg, opt_enum, arch_mask },
2053 #define DEFHEADING(text)
2054 #include "qemu-options.h"
2055 #undef DEF
2056 #undef DEFHEADING
2057 #undef GEN_DOCS
2058 { NULL },
2059 };
2060 static void select_vgahw (const char *p)
2061 {
2062 const char *opts;
2063
2064 default_vga = 0;
2065 vga_interface_type = VGA_NONE;
2066 if (strstart(p, "std", &opts)) {
2067 vga_interface_type = VGA_STD;
2068 } else if (strstart(p, "cirrus", &opts)) {
2069 vga_interface_type = VGA_CIRRUS;
2070 } else if (strstart(p, "vmware", &opts)) {
2071 vga_interface_type = VGA_VMWARE;
2072 } else if (strstart(p, "xenfb", &opts)) {
2073 vga_interface_type = VGA_XENFB;
2074 } else if (!strstart(p, "none", &opts)) {
2075 invalid_vga:
2076 fprintf(stderr, "Unknown vga type: %s\n", p);
2077 exit(1);
2078 }
2079 while (*opts) {
2080 const char *nextopt;
2081
2082 if (strstart(opts, ",retrace=", &nextopt)) {
2083 opts = nextopt;
2084 if (strstart(opts, "dumb", &nextopt))
2085 vga_retrace_method = VGA_RETRACE_DUMB;
2086 else if (strstart(opts, "precise", &nextopt))
2087 vga_retrace_method = VGA_RETRACE_PRECISE;
2088 else goto invalid_vga;
2089 } else goto invalid_vga;
2090 opts = nextopt;
2091 }
2092 }
2093
2094 static int balloon_parse(const char *arg)
2095 {
2096 QemuOpts *opts;
2097
2098 if (strcmp(arg, "none") == 0) {
2099 return 0;
2100 }
2101
2102 if (!strncmp(arg, "virtio", 6)) {
2103 if (arg[6] == ',') {
2104 /* have params -> parse them */
2105 opts = qemu_opts_parse(&qemu_device_opts, arg+7, 0);
2106 if (!opts)
2107 return -1;
2108 } else {
2109 /* create empty opts */
2110 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2111 }
2112 qemu_opt_set(opts, "driver", "virtio-balloon-pci");
2113 return 0;
2114 }
2115
2116 return -1;
2117 }
2118
2119 #ifdef _WIN32
2120 static BOOL WINAPI qemu_ctrl_handler(DWORD type)
2121 {
2122 exit(STATUS_CONTROL_C_EXIT);
2123 return TRUE;
2124 }
2125 #endif
2126
2127 #ifndef _WIN32
2128
2129 static void termsig_handler(int signal)
2130 {
2131 qemu_system_shutdown_request();
2132 }
2133
2134 static void sigchld_handler(int signal)
2135 {
2136 waitpid(-1, NULL, WNOHANG);
2137 }
2138
2139 static void sighandler_setup(void)
2140 {
2141 struct sigaction act;
2142
2143 memset(&act, 0, sizeof(act));
2144 act.sa_handler = termsig_handler;
2145 sigaction(SIGINT, &act, NULL);
2146 sigaction(SIGHUP, &act, NULL);
2147 sigaction(SIGTERM, &act, NULL);
2148
2149 act.sa_handler = sigchld_handler;
2150 act.sa_flags = SA_NOCLDSTOP;
2151 sigaction(SIGCHLD, &act, NULL);
2152 }
2153
2154 #endif
2155
2156 #ifdef _WIN32
2157 /* Look for support files in the same directory as the executable. */
2158 static char *find_datadir(const char *argv0)
2159 {
2160 char *p;
2161 char buf[MAX_PATH];
2162 DWORD len;
2163
2164 len = GetModuleFileName(NULL, buf, sizeof(buf) - 1);
2165 if (len == 0) {
2166 return NULL;
2167 }
2168
2169 buf[len] = 0;
2170 p = buf + len - 1;
2171 while (p != buf && *p != '\\')
2172 p--;
2173 *p = 0;
2174 if (access(buf, R_OK) == 0) {
2175 return qemu_strdup(buf);
2176 }
2177 return NULL;
2178 }
2179 #else /* !_WIN32 */
2180
2181 /* Find a likely location for support files using the location of the binary.
2182 For installed binaries this will be "$bindir/../share/qemu". When
2183 running from the build tree this will be "$bindir/../pc-bios". */
2184 #define SHARE_SUFFIX "/share/qemu"
2185 #define BUILD_SUFFIX "/pc-bios"
2186 static char *find_datadir(const char *argv0)
2187 {
2188 char *dir;
2189 char *p = NULL;
2190 char *res;
2191 char buf[PATH_MAX];
2192 size_t max_len;
2193
2194 #if defined(__linux__)
2195 {
2196 int len;
2197 len = readlink("/proc/self/exe", buf, sizeof(buf) - 1);
2198 if (len > 0) {
2199 buf[len] = 0;
2200 p = buf;
2201 }
2202 }
2203 #elif defined(__FreeBSD__)
2204 {
2205 static int mib[4] = {CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, -1};
2206 size_t len = sizeof(buf) - 1;
2207
2208 *buf = '\0';
2209 if (!sysctl(mib, sizeof(mib)/sizeof(*mib), buf, &len, NULL, 0) &&
2210 *buf) {
2211 buf[sizeof(buf) - 1] = '\0';
2212 p = buf;
2213 }
2214 }
2215 #endif
2216 /* If we don't have any way of figuring out the actual executable
2217 location then try argv[0]. */
2218 if (!p) {
2219 p = realpath(argv0, buf);
2220 if (!p) {
2221 return NULL;
2222 }
2223 }
2224 dir = dirname(p);
2225 dir = dirname(dir);
2226
2227 max_len = strlen(dir) +
2228 MAX(strlen(SHARE_SUFFIX), strlen(BUILD_SUFFIX)) + 1;
2229 res = qemu_mallocz(max_len);
2230 snprintf(res, max_len, "%s%s", dir, SHARE_SUFFIX);
2231 if (access(res, R_OK)) {
2232 snprintf(res, max_len, "%s%s", dir, BUILD_SUFFIX);
2233 if (access(res, R_OK)) {
2234 qemu_free(res);
2235 res = NULL;
2236 }
2237 }
2238
2239 return res;
2240 }
2241 #undef SHARE_SUFFIX
2242 #undef BUILD_SUFFIX
2243 #endif
2244
2245 char *qemu_find_file(int type, const char *name)
2246 {
2247 int len;
2248 const char *subdir;
2249 char *buf;
2250
2251 /* If name contains path separators then try it as a straight path. */
2252 if ((strchr(name, '/') || strchr(name, '\\'))
2253 && access(name, R_OK) == 0) {
2254 return qemu_strdup(name);
2255 }
2256 switch (type) {
2257 case QEMU_FILE_TYPE_BIOS:
2258 subdir = "";
2259 break;
2260 case QEMU_FILE_TYPE_KEYMAP:
2261 subdir = "keymaps/";
2262 break;
2263 default:
2264 abort();
2265 }
2266 len = strlen(data_dir) + strlen(name) + strlen(subdir) + 2;
2267 buf = qemu_mallocz(len);
2268 snprintf(buf, len, "%s/%s%s", data_dir, subdir, name);
2269 if (access(buf, R_OK)) {
2270 qemu_free(buf);
2271 return NULL;
2272 }
2273 return buf;
2274 }
2275
2276 static int device_help_func(QemuOpts *opts, void *opaque)
2277 {
2278 return qdev_device_help(opts);
2279 }
2280
2281 static int device_init_func(QemuOpts *opts, void *opaque)
2282 {
2283 DeviceState *dev;
2284
2285 dev = qdev_device_add(opts);
2286 if (!dev)
2287 return -1;
2288 return 0;
2289 }
2290
2291 static int chardev_init_func(QemuOpts *opts, void *opaque)
2292 {
2293 CharDriverState *chr;
2294
2295 chr = qemu_chr_open_opts(opts, NULL);
2296 if (!chr)
2297 return -1;
2298 return 0;
2299 }
2300
2301 #ifdef CONFIG_LINUX
2302 static int fsdev_init_func(QemuOpts *opts, void *opaque)
2303 {
2304 int ret;
2305 ret = qemu_fsdev_add(opts);
2306
2307 return ret;
2308 }
2309 #endif
2310
2311 static int mon_init_func(QemuOpts *opts, void *opaque)
2312 {
2313 CharDriverState *chr;
2314 const char *chardev;
2315 const char *mode;
2316 int flags;
2317
2318 mode = qemu_opt_get(opts, "mode");
2319 if (mode == NULL) {
2320 mode = "readline";
2321 }
2322 if (strcmp(mode, "readline") == 0) {
2323 flags = MONITOR_USE_READLINE;
2324 } else if (strcmp(mode, "control") == 0) {
2325 flags = MONITOR_USE_CONTROL;
2326 } else {
2327 fprintf(stderr, "unknown monitor mode \"%s\"\n", mode);
2328 exit(1);
2329 }
2330
2331 if (qemu_opt_get_bool(opts, "default", 0))
2332 flags |= MONITOR_IS_DEFAULT;
2333
2334 chardev = qemu_opt_get(opts, "chardev");
2335 chr = qemu_chr_find(chardev);
2336 if (chr == NULL) {
2337 fprintf(stderr, "chardev \"%s\" not found\n", chardev);
2338 exit(1);
2339 }
2340
2341 monitor_init(chr, flags);
2342 return 0;
2343 }
2344
2345 static void monitor_parse(const char *optarg, const char *mode)
2346 {
2347 static int monitor_device_index = 0;
2348 QemuOpts *opts;
2349 const char *p;
2350 char label[32];
2351 int def = 0;
2352
2353 if (strstart(optarg, "chardev:", &p)) {
2354 snprintf(label, sizeof(label), "%s", p);
2355 } else {
2356 snprintf(label, sizeof(label), "compat_monitor%d",
2357 monitor_device_index);
2358 if (monitor_device_index == 0) {
2359 def = 1;
2360 }
2361 opts = qemu_chr_parse_compat(label, optarg);
2362 if (!opts) {
2363 fprintf(stderr, "parse error: %s\n", optarg);
2364 exit(1);
2365 }
2366 }
2367
2368 opts = qemu_opts_create(&qemu_mon_opts, label, 1);
2369 if (!opts) {
2370 fprintf(stderr, "duplicate chardev: %s\n", label);
2371 exit(1);
2372 }
2373 qemu_opt_set(opts, "mode", mode);
2374 qemu_opt_set(opts, "chardev", label);
2375 if (def)
2376 qemu_opt_set(opts, "default", "on");
2377 monitor_device_index++;
2378 }
2379
2380 struct device_config {
2381 enum {
2382 DEV_USB, /* -usbdevice */
2383 DEV_BT, /* -bt */
2384 DEV_SERIAL, /* -serial */
2385 DEV_PARALLEL, /* -parallel */
2386 DEV_VIRTCON, /* -virtioconsole */
2387 DEV_DEBUGCON, /* -debugcon */
2388 } type;
2389 const char *cmdline;
2390 QTAILQ_ENTRY(device_config) next;
2391 };
2392 QTAILQ_HEAD(, device_config) device_configs = QTAILQ_HEAD_INITIALIZER(device_configs);
2393
2394 static void add_device_config(int type, const char *cmdline)
2395 {
2396 struct device_config *conf;
2397
2398 conf = qemu_mallocz(sizeof(*conf));
2399 conf->type = type;
2400 conf->cmdline = cmdline;
2401 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2402 }
2403
2404 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2405 {
2406 struct device_config *conf;
2407 int rc;
2408
2409 QTAILQ_FOREACH(conf, &device_configs, next) {
2410 if (conf->type != type)
2411 continue;
2412 rc = func(conf->cmdline);
2413 if (0 != rc)
2414 return rc;
2415 }
2416 return 0;
2417 }
2418
2419 static int serial_parse(const char *devname)
2420 {
2421 static int index = 0;
2422 char label[32];
2423
2424 if (strcmp(devname, "none") == 0)
2425 return 0;
2426 if (index == MAX_SERIAL_PORTS) {
2427 fprintf(stderr, "qemu: too many serial ports\n");
2428 exit(1);
2429 }
2430 snprintf(label, sizeof(label), "serial%d", index);
2431 serial_hds[index] = qemu_chr_open(label, devname, NULL);
2432 if (!serial_hds[index]) {
2433 fprintf(stderr, "qemu: could not open serial device '%s': %s\n",
2434 devname, strerror(errno));
2435 return -1;
2436 }
2437 index++;
2438 return 0;
2439 }
2440
2441 static int parallel_parse(const char *devname)
2442 {
2443 static int index = 0;
2444 char label[32];
2445
2446 if (strcmp(devname, "none") == 0)
2447 return 0;
2448 if (index == MAX_PARALLEL_PORTS) {
2449 fprintf(stderr, "qemu: too many parallel ports\n");
2450 exit(1);
2451 }
2452 snprintf(label, sizeof(label), "parallel%d", index);
2453 parallel_hds[index] = qemu_chr_open(label, devname, NULL);
2454 if (!parallel_hds[index]) {
2455 fprintf(stderr, "qemu: could not open parallel device '%s': %s\n",
2456 devname, strerror(errno));
2457 return -1;
2458 }
2459 index++;
2460 return 0;
2461 }
2462
2463 static int virtcon_parse(const char *devname)
2464 {
2465 static int index = 0;
2466 char label[32];
2467 QemuOpts *bus_opts, *dev_opts;
2468
2469 if (strcmp(devname, "none") == 0)
2470 return 0;
2471 if (index == MAX_VIRTIO_CONSOLES) {
2472 fprintf(stderr, "qemu: too many virtio consoles\n");
2473 exit(1);
2474 }
2475
2476 bus_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2477 qemu_opt_set(bus_opts, "driver", "virtio-serial");
2478
2479 dev_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2480 qemu_opt_set(dev_opts, "driver", "virtconsole");
2481
2482 snprintf(label, sizeof(label), "virtcon%d", index);
2483 virtcon_hds[index] = qemu_chr_open(label, devname, NULL);
2484 if (!virtcon_hds[index]) {
2485 fprintf(stderr, "qemu: could not open virtio console '%s': %s\n",
2486 devname, strerror(errno));
2487 return -1;
2488 }
2489 qemu_opt_set(dev_opts, "chardev", label);
2490
2491 index++;
2492 return 0;
2493 }
2494
2495 static int debugcon_parse(const char *devname)
2496 {
2497 QemuOpts *opts;
2498
2499 if (!qemu_chr_open("debugcon", devname, NULL)) {
2500 exit(1);
2501 }
2502 opts = qemu_opts_create(&qemu_device_opts, "debugcon", 1);
2503 if (!opts) {
2504 fprintf(stderr, "qemu: already have a debugcon device\n");
2505 exit(1);
2506 }
2507 qemu_opt_set(opts, "driver", "isa-debugcon");
2508 qemu_opt_set(opts, "chardev", "debugcon");
2509 return 0;
2510 }
2511
2512 static const QEMUOption *lookup_opt(int argc, char **argv,
2513 const char **poptarg, int *poptind)
2514 {
2515 const QEMUOption *popt;
2516 int optind = *poptind;
2517 char *r = argv[optind];
2518 const char *optarg;
2519
2520 loc_set_cmdline(argv, optind, 1);
2521 optind++;
2522 /* Treat --foo the same as -foo. */
2523 if (r[1] == '-')
2524 r++;
2525 popt = qemu_options;
2526 for(;;) {
2527 if (!popt->name) {
2528 error_report("invalid option");
2529 exit(1);
2530 }
2531 if (!strcmp(popt->name, r + 1))
2532 break;
2533 popt++;
2534 }
2535 if (popt->flags & HAS_ARG) {
2536 if (optind >= argc) {
2537 error_report("requires an argument");
2538 exit(1);
2539 }
2540 optarg = argv[optind++];
2541 loc_set_cmdline(argv, optind - 2, 2);
2542 } else {
2543 optarg = NULL;
2544 }
2545
2546 *poptarg = optarg;
2547 *poptind = optind;
2548
2549 return popt;
2550 }
2551
2552 int main(int argc, char **argv, char **envp)
2553 {
2554 const char *gdbstub_dev = NULL;
2555 int i;
2556 int snapshot, linux_boot;
2557 const char *icount_option = NULL;
2558 const char *initrd_filename;
2559 const char *kernel_filename, *kernel_cmdline;
2560 char boot_devices[33] = "cad"; /* default to HD->floppy->CD-ROM */
2561 DisplayState *ds;
2562 DisplayChangeListener *dcl;
2563 int cyls, heads, secs, translation;
2564 QemuOpts *hda_opts = NULL, *opts;
2565 int optind;
2566 const char *optarg;
2567 const char *loadvm = NULL;
2568 QEMUMachine *machine;
2569 const char *cpu_model;
2570 #ifndef _WIN32
2571 int fds[2];
2572 #endif
2573 int tb_size;
2574 const char *pid_file = NULL;
2575 const char *incoming = NULL;
2576 #ifndef _WIN32
2577 int fd = 0;
2578 struct passwd *pwd = NULL;
2579 const char *chroot_dir = NULL;
2580 const char *run_as = NULL;
2581 #endif
2582 int show_vnc_port = 0;
2583 int defconfig = 1;
2584
2585 error_set_progname(argv[0]);
2586
2587 init_clocks();
2588
2589 qemu_cache_utils_init(envp);
2590
2591 QLIST_INIT (&vm_change_state_head);
2592 #ifndef _WIN32
2593 {
2594 struct sigaction act;
2595 sigfillset(&act.sa_mask);
2596 act.sa_flags = 0;
2597 act.sa_handler = SIG_IGN;
2598 sigaction(SIGPIPE, &act, NULL);
2599 }
2600 #else
2601 SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE);
2602 /* Note: cpu_interrupt() is currently not SMP safe, so we force
2603 QEMU to run on a single CPU */
2604 {
2605 HANDLE h;
2606 DWORD mask, smask;
2607 int i;
2608 h = GetCurrentProcess();
2609 if (GetProcessAffinityMask(h, &mask, &smask)) {
2610 for(i = 0; i < 32; i++) {
2611 if (mask & (1 << i))
2612 break;
2613 }
2614 if (i != 32) {
2615 mask = 1 << i;
2616 SetProcessAffinityMask(h, mask);
2617 }
2618 }
2619 }
2620 #endif
2621
2622 module_call_init(MODULE_INIT_MACHINE);
2623 machine = find_default_machine();
2624 cpu_model = NULL;
2625 initrd_filename = NULL;
2626 ram_size = 0;
2627 snapshot = 0;
2628 kernel_filename = NULL;
2629 kernel_cmdline = "";
2630 cyls = heads = secs = 0;
2631 translation = BIOS_ATA_TRANSLATION_AUTO;
2632
2633 for (i = 0; i < MAX_NODES; i++) {
2634 node_mem[i] = 0;
2635 node_cpumask[i] = 0;
2636 }
2637
2638 nb_numa_nodes = 0;
2639 nb_nics = 0;
2640
2641 tb_size = 0;
2642 autostart= 1;
2643
2644 /* first pass of option parsing */
2645 optind = 1;
2646 while (optind < argc) {
2647 if (argv[optind][0] != '-') {
2648 /* disk image */
2649 optind++;
2650 continue;
2651 } else {
2652 const QEMUOption *popt;
2653
2654 popt = lookup_opt(argc, argv, &optarg, &optind);
2655 switch (popt->index) {
2656 case QEMU_OPTION_nodefconfig:
2657 defconfig=0;
2658 break;
2659 }
2660 }
2661 }
2662
2663 if (defconfig) {
2664 int ret;
2665
2666 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2667 if (ret < 0 && ret != -ENOENT) {
2668 exit(1);
2669 }
2670
2671 ret = qemu_read_config_file(arch_config_name);
2672 if (ret < 0 && ret != -ENOENT) {
2673 exit(1);
2674 }
2675 }
2676 cpudef_init();
2677
2678 /* second pass of option parsing */
2679 optind = 1;
2680 for(;;) {
2681 if (optind >= argc)
2682 break;
2683 if (argv[optind][0] != '-') {
2684 hda_opts = drive_add(argv[optind++], HD_ALIAS, 0);
2685 } else {
2686 const QEMUOption *popt;
2687
2688 popt = lookup_opt(argc, argv, &optarg, &optind);
2689 if (!(popt->arch_mask & arch_type)) {
2690 printf("Option %s not supported for this target\n", popt->name);
2691 exit(1);
2692 }
2693 switch(popt->index) {
2694 case QEMU_OPTION_M:
2695 machine = find_machine(optarg);
2696 if (!machine) {
2697 QEMUMachine *m;
2698 printf("Supported machines are:\n");
2699 for(m = first_machine; m != NULL; m = m->next) {
2700 if (m->alias)
2701 printf("%-10s %s (alias of %s)\n",
2702 m->alias, m->desc, m->name);
2703 printf("%-10s %s%s\n",
2704 m->name, m->desc,
2705 m->is_default ? " (default)" : "");
2706 }
2707 exit(*optarg != '?');
2708 }
2709 break;
2710 case QEMU_OPTION_cpu:
2711 /* hw initialization will check this */
2712 if (*optarg == '?') {
2713 list_cpus(stdout, &fprintf, optarg);
2714 exit(0);
2715 } else {
2716 cpu_model = optarg;
2717 }
2718 break;
2719 case QEMU_OPTION_initrd:
2720 initrd_filename = optarg;
2721 break;
2722 case QEMU_OPTION_hda:
2723 if (cyls == 0)
2724 hda_opts = drive_add(optarg, HD_ALIAS, 0);
2725 else
2726 hda_opts = drive_add(optarg, HD_ALIAS
2727 ",cyls=%d,heads=%d,secs=%d%s",
2728 0, cyls, heads, secs,
2729 translation == BIOS_ATA_TRANSLATION_LBA ?
2730 ",trans=lba" :
2731 translation == BIOS_ATA_TRANSLATION_NONE ?
2732 ",trans=none" : "");
2733 break;
2734 case QEMU_OPTION_hdb:
2735 case QEMU_OPTION_hdc:
2736 case QEMU_OPTION_hdd:
2737 drive_add(optarg, HD_ALIAS, popt->index - QEMU_OPTION_hda);
2738 break;
2739 case QEMU_OPTION_drive:
2740 drive_add(NULL, "%s", optarg);
2741 break;
2742 case QEMU_OPTION_set:
2743 if (qemu_set_option(optarg) != 0)
2744 exit(1);
2745 break;
2746 case QEMU_OPTION_global:
2747 if (qemu_global_option(optarg) != 0)
2748 exit(1);
2749 break;
2750 case QEMU_OPTION_mtdblock:
2751 drive_add(optarg, MTD_ALIAS);
2752 break;
2753 case QEMU_OPTION_sd:
2754 drive_add(optarg, SD_ALIAS);
2755 break;
2756 case QEMU_OPTION_pflash:
2757 drive_add(optarg, PFLASH_ALIAS);
2758 break;
2759 case QEMU_OPTION_snapshot:
2760 snapshot = 1;
2761 break;
2762 case QEMU_OPTION_hdachs:
2763 {
2764 const char *p;
2765 p = optarg;
2766 cyls = strtol(p, (char **)&p, 0);
2767 if (cyls < 1 || cyls > 16383)
2768 goto chs_fail;
2769 if (*p != ',')
2770 goto chs_fail;
2771 p++;
2772 heads = strtol(p, (char **)&p, 0);
2773 if (heads < 1 || heads > 16)
2774 goto chs_fail;
2775 if (*p != ',')
2776 goto chs_fail;
2777 p++;
2778 secs = strtol(p, (char **)&p, 0);
2779 if (secs < 1 || secs > 63)
2780 goto chs_fail;
2781 if (*p == ',') {
2782 p++;
2783 if (!strcmp(p, "none"))
2784 translation = BIOS_ATA_TRANSLATION_NONE;
2785 else if (!strcmp(p, "lba"))
2786 translation = BIOS_ATA_TRANSLATION_LBA;
2787 else if (!strcmp(p, "auto"))
2788 translation = BIOS_ATA_TRANSLATION_AUTO;
2789 else
2790 goto chs_fail;
2791 } else if (*p != '\0') {
2792 chs_fail:
2793 fprintf(stderr, "qemu: invalid physical CHS format\n");
2794 exit(1);
2795 }
2796 if (hda_opts != NULL) {
2797 char num[16];
2798 snprintf(num, sizeof(num), "%d", cyls);
2799 qemu_opt_set(hda_opts, "cyls", num);
2800 snprintf(num, sizeof(num), "%d", heads);
2801 qemu_opt_set(hda_opts, "heads", num);
2802 snprintf(num, sizeof(num), "%d", secs);
2803 qemu_opt_set(hda_opts, "secs", num);
2804 if (translation == BIOS_ATA_TRANSLATION_LBA)
2805 qemu_opt_set(hda_opts, "trans", "lba");
2806 if (translation == BIOS_ATA_TRANSLATION_NONE)
2807 qemu_opt_set(hda_opts, "trans", "none");
2808 }
2809 }
2810 break;
2811 case QEMU_OPTION_numa:
2812 if (nb_numa_nodes >= MAX_NODES) {
2813 fprintf(stderr, "qemu: too many NUMA nodes\n");
2814 exit(1);
2815 }
2816 numa_add(optarg);
2817 break;
2818 case QEMU_OPTION_nographic:
2819 display_type = DT_NOGRAPHIC;
2820 break;
2821 #ifdef CONFIG_CURSES
2822 case QEMU_OPTION_curses:
2823 display_type = DT_CURSES;
2824 break;
2825 #endif
2826 case QEMU_OPTION_portrait:
2827 graphic_rotate = 1;
2828 break;
2829 case QEMU_OPTION_kernel:
2830 kernel_filename = optarg;
2831 break;
2832 case QEMU_OPTION_append:
2833 kernel_cmdline = optarg;
2834 break;
2835 case QEMU_OPTION_cdrom:
2836 drive_add(optarg, CDROM_ALIAS);
2837 break;
2838 case QEMU_OPTION_boot:
2839 {
2840 static const char * const params[] = {
2841 "order", "once", "menu", NULL
2842 };
2843 char buf[sizeof(boot_devices)];
2844 char *standard_boot_devices;
2845 int legacy = 0;
2846
2847 if (!strchr(optarg, '=')) {
2848 legacy = 1;
2849 pstrcpy(buf, sizeof(buf), optarg);
2850 } else if (check_params(buf, sizeof(buf), params, optarg) < 0) {
2851 fprintf(stderr,
2852 "qemu: unknown boot parameter '%s' in '%s'\n",
2853 buf, optarg);
2854 exit(1);
2855 }
2856
2857 if (legacy ||
2858 get_param_value(buf, sizeof(buf), "order", optarg)) {
2859 validate_bootdevices(buf);
2860 pstrcpy(boot_devices, sizeof(boot_devices), buf);
2861 }
2862 if (!legacy) {
2863 if (get_param_value(buf, sizeof(buf),
2864 "once", optarg)) {
2865 validate_bootdevices(buf);
2866 standard_boot_devices = qemu_strdup(boot_devices);
2867 pstrcpy(boot_devices, sizeof(boot_devices), buf);
2868 qemu_register_reset(restore_boot_devices,
2869 standard_boot_devices);
2870 }
2871 if (get_param_value(buf, sizeof(buf),
2872 "menu", optarg)) {
2873 if (!strcmp(buf, "on")) {
2874 boot_menu = 1;
2875 } else if (!strcmp(buf, "off")) {
2876 boot_menu = 0;
2877 } else {
2878 fprintf(stderr,
2879 "qemu: invalid option value '%s'\n",
2880 buf);
2881 exit(1);
2882 }
2883 }
2884 }
2885 }
2886 break;
2887 case QEMU_OPTION_fda:
2888 case QEMU_OPTION_fdb:
2889 drive_add(optarg, FD_ALIAS, popt->index - QEMU_OPTION_fda);
2890 break;
2891 case QEMU_OPTION_no_fd_bootchk:
2892 fd_bootchk = 0;
2893 break;
2894 case QEMU_OPTION_netdev:
2895 if (net_client_parse(&qemu_netdev_opts, optarg) == -1) {
2896 exit(1);
2897 }
2898 break;
2899 case QEMU_OPTION_net:
2900 if (net_client_parse(&qemu_net_opts, optarg) == -1) {
2901 exit(1);
2902 }
2903 break;
2904 #ifdef CONFIG_SLIRP
2905 case QEMU_OPTION_tftp:
2906 legacy_tftp_prefix = optarg;
2907 break;
2908 case QEMU_OPTION_bootp:
2909 legacy_bootp_filename = optarg;
2910 break;
2911 #ifndef _WIN32
2912 case QEMU_OPTION_smb:
2913 if (net_slirp_smb(optarg) < 0)
2914 exit(1);
2915 break;
2916 #endif
2917 case QEMU_OPTION_redir:
2918 if (net_slirp_redir(optarg) < 0)
2919 exit(1);
2920 break;
2921 #endif
2922 case QEMU_OPTION_bt:
2923 add_device_config(DEV_BT, optarg);
2924 break;
2925 case QEMU_OPTION_audio_help:
2926 if (!(audio_available())) {
2927 printf("Option %s not supported for this target\n", popt->name);
2928 exit(1);
2929 }
2930 AUD_help ();
2931 exit (0);
2932 break;
2933 case QEMU_OPTION_soundhw:
2934 if (!(audio_available())) {
2935 printf("Option %s not supported for this target\n", popt->name);
2936 exit(1);
2937 }
2938 select_soundhw (optarg);
2939 break;
2940 case QEMU_OPTION_h:
2941 help(0);
2942 break;
2943 case QEMU_OPTION_version:
2944 version();
2945 exit(0);
2946 break;
2947 case QEMU_OPTION_m: {
2948 uint64_t value;
2949 char *ptr;
2950
2951 value = strtoul(optarg, &ptr, 10);
2952 switch (*ptr) {
2953 case 0: case 'M': case 'm':
2954 value <<= 20;
2955 break;
2956 case 'G': case 'g':
2957 value <<= 30;
2958 break;
2959 default:
2960 fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
2961 exit(1);
2962 }
2963
2964 /* On 32-bit hosts, QEMU is limited by virtual address space */
2965 if (value > (2047 << 20) && HOST_LONG_BITS == 32) {
2966 fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
2967 exit(1);
2968 }
2969 if (value != (uint64_t)(ram_addr_t)value) {
2970 fprintf(stderr, "qemu: ram size too large\n");
2971 exit(1);
2972 }
2973 ram_size = value;
2974 break;
2975 }
2976 case QEMU_OPTION_mempath:
2977 mem_path = optarg;
2978 break;
2979 #ifdef MAP_POPULATE
2980 case QEMU_OPTION_mem_prealloc:
2981 mem_prealloc = 1;
2982 break;
2983 #endif
2984 case QEMU_OPTION_d:
2985 set_cpu_log(optarg);
2986 break;
2987 case QEMU_OPTION_s:
2988 gdbstub_dev = "tcp::" DEFAULT_GDBSTUB_PORT;
2989 break;
2990 case QEMU_OPTION_gdb:
2991 gdbstub_dev = optarg;
2992 break;
2993 case QEMU_OPTION_L:
2994 data_dir = optarg;
2995 break;
2996 case QEMU_OPTION_bios:
2997 bios_name = optarg;
2998 break;
2999 case QEMU_OPTION_singlestep:
3000 singlestep = 1;
3001 break;
3002 case QEMU_OPTION_S:
3003 autostart = 0;
3004 break;
3005 case QEMU_OPTION_k:
3006 keyboard_layout = optarg;
3007 break;
3008 case QEMU_OPTION_localtime:
3009 rtc_utc = 0;
3010 break;
3011 case QEMU_OPTION_vga:
3012 select_vgahw (optarg);
3013 break;
3014 case QEMU_OPTION_g:
3015 {
3016 const char *p;
3017 int w, h, depth;
3018 p = optarg;
3019 w = strtol(p, (char **)&p, 10);
3020 if (w <= 0) {
3021 graphic_error:
3022 fprintf(stderr, "qemu: invalid resolution or depth\n");
3023 exit(1);
3024 }
3025 if (*p != 'x')
3026 goto graphic_error;
3027 p++;
3028 h = strtol(p, (char **)&p, 10);
3029 if (h <= 0)
3030 goto graphic_error;
3031 if (*p == 'x') {
3032 p++;
3033 depth = strtol(p, (char **)&p, 10);
3034 if (depth != 8 && depth != 15 && depth != 16 &&
3035 depth != 24 && depth != 32)
3036 goto graphic_error;
3037 } else if (*p == '\0') {
3038 depth = graphic_depth;
3039 } else {
3040 goto graphic_error;
3041 }
3042
3043 graphic_width = w;
3044 graphic_height = h;
3045 graphic_depth = depth;
3046 }
3047 break;
3048 case QEMU_OPTION_echr:
3049 {
3050 char *r;
3051 term_escape_char = strtol(optarg, &r, 0);
3052 if (r == optarg)
3053 printf("Bad argument to echr\n");
3054 break;
3055 }
3056 case QEMU_OPTION_monitor:
3057 monitor_parse(optarg, "readline");
3058 default_monitor = 0;
3059 break;
3060 case QEMU_OPTION_qmp:
3061 monitor_parse(optarg, "control");
3062 default_monitor = 0;
3063 break;
3064 case QEMU_OPTION_mon:
3065 opts = qemu_opts_parse(&qemu_mon_opts, optarg, 1);
3066 if (!opts) {
3067 exit(1);
3068 }
3069 default_monitor = 0;
3070 break;
3071 case QEMU_OPTION_chardev:
3072 opts = qemu_opts_parse(&qemu_chardev_opts, optarg, 1);
3073 if (!opts) {
3074 exit(1);
3075 }
3076 break;
3077 #ifdef CONFIG_LINUX
3078 case QEMU_OPTION_fsdev:
3079 opts = qemu_opts_parse(&qemu_fsdev_opts, optarg, 1);
3080 if (!opts) {
3081 fprintf(stderr, "parse error: %s\n", optarg);
3082 exit(1);
3083 }
3084 break;
3085 case QEMU_OPTION_virtfs: {
3086 char *arg_fsdev = NULL;
3087 char *arg_9p = NULL;
3088 int len = 0;
3089
3090 opts = qemu_opts_parse(&qemu_virtfs_opts, optarg, 1);
3091 if (!opts) {
3092 fprintf(stderr, "parse error: %s\n", optarg);
3093 exit(1);
3094 }
3095
3096 len = strlen(",id=,path=");
3097 len += strlen(qemu_opt_get(opts, "fstype"));
3098 len += strlen(qemu_opt_get(opts, "mount_tag"));
3099 len += strlen(qemu_opt_get(opts, "path"));
3100 arg_fsdev = qemu_malloc((len + 1) * sizeof(*arg_fsdev));
3101
3102 if (!arg_fsdev) {
3103 fprintf(stderr, "No memory to parse -fsdev for %s\n",
3104 optarg);
3105 exit(1);
3106 }
3107
3108 sprintf(arg_fsdev, "%s,id=%s,path=%s",
3109 qemu_opt_get(opts, "fstype"),
3110 qemu_opt_get(opts, "mount_tag"),
3111 qemu_opt_get(opts, "path"));
3112
3113 len = strlen("virtio-9p-pci,fsdev=,mount_tag=");
3114 len += 2*strlen(qemu_opt_get(opts, "mount_tag"));
3115 arg_9p = qemu_malloc((len + 1) * sizeof(*arg_9p));
3116
3117 if (!arg_9p) {
3118 fprintf(stderr, "No memory to parse -device for %s\n",
3119 optarg);
3120 exit(1);
3121 }
3122
3123 sprintf(arg_9p, "virtio-9p-pci,fsdev=%s,mount_tag=%s",
3124 qemu_opt_get(opts, "mount_tag"),
3125 qemu_opt_get(opts, "mount_tag"));
3126
3127 if (!qemu_opts_parse(&qemu_fsdev_opts, arg_fsdev, 1)) {
3128 fprintf(stderr, "parse error [fsdev]: %s\n", optarg);
3129 exit(1);
3130 }
3131
3132 if (!qemu_opts_parse(&qemu_device_opts, arg_9p, 1)) {
3133 fprintf(stderr, "parse error [device]: %s\n", optarg);
3134 exit(1);
3135 }
3136
3137 qemu_free(arg_fsdev);
3138 qemu_free(arg_9p);
3139 break;
3140 }
3141 #endif
3142 case QEMU_OPTION_serial:
3143 add_device_config(DEV_SERIAL, optarg);
3144 default_serial = 0;
3145 if (strncmp(optarg, "mon:", 4) == 0) {
3146 default_monitor = 0;
3147 }
3148 break;
3149 case QEMU_OPTION_watchdog:
3150 if (watchdog) {
3151 fprintf(stderr,
3152 "qemu: only one watchdog option may be given\n");
3153 return 1;
3154 }
3155 watchdog = optarg;
3156 break;
3157 case QEMU_OPTION_watchdog_action:
3158 if (select_watchdog_action(optarg) == -1) {
3159 fprintf(stderr, "Unknown -watchdog-action parameter\n");
3160 exit(1);
3161 }
3162 break;
3163 case QEMU_OPTION_virtiocon:
3164 add_device_config(DEV_VIRTCON, optarg);
3165 default_virtcon = 0;
3166 if (strncmp(optarg, "mon:", 4) == 0) {
3167 default_monitor = 0;
3168 }
3169 break;
3170 case QEMU_OPTION_parallel:
3171 add_device_config(DEV_PARALLEL, optarg);
3172 default_parallel = 0;
3173 if (strncmp(optarg, "mon:", 4) == 0) {
3174 default_monitor = 0;
3175 }
3176 break;
3177 case QEMU_OPTION_debugcon:
3178 add_device_config(DEV_DEBUGCON, optarg);
3179 break;
3180 case QEMU_OPTION_loadvm:
3181 loadvm = optarg;
3182 break;
3183 case QEMU_OPTION_full_screen:
3184 full_screen = 1;
3185 break;
3186 #ifdef CONFIG_SDL
3187 case QEMU_OPTION_no_frame:
3188 no_frame = 1;
3189 break;
3190 case QEMU_OPTION_alt_grab:
3191 alt_grab = 1;
3192 break;
3193 case QEMU_OPTION_ctrl_grab:
3194 ctrl_grab = 1;
3195 break;
3196 case QEMU_OPTION_no_quit:
3197 no_quit = 1;
3198 break;
3199 case QEMU_OPTION_sdl:
3200 display_type = DT_SDL;
3201 break;
3202 #endif
3203 case QEMU_OPTION_pidfile:
3204 pid_file = optarg;
3205 break;
3206 case QEMU_OPTION_win2k_hack:
3207 win2k_install_hack = 1;
3208 break;
3209 case QEMU_OPTION_rtc_td_hack:
3210 rtc_td_hack = 1;
3211 break;
3212 case QEMU_OPTION_acpitable:
3213 do_acpitable_option(optarg);
3214 break;
3215 case QEMU_OPTION_smbios:
3216 do_smbios_option(optarg);
3217 break;
3218 case QEMU_OPTION_enable_kvm:
3219 kvm_allowed = 1;
3220 break;
3221 case QEMU_OPTION_usb:
3222 usb_enabled = 1;
3223 break;
3224 case QEMU_OPTION_usbdevice:
3225 usb_enabled = 1;
3226 add_device_config(DEV_USB, optarg);
3227 break;
3228 case QEMU_OPTION_device:
3229 if (!qemu_opts_parse(&qemu_device_opts, optarg, 1)) {
3230 exit(1);
3231 }
3232 break;
3233 case QEMU_OPTION_smp:
3234 smp_parse(optarg);
3235 if (smp_cpus < 1) {
3236 fprintf(stderr, "Invalid number of CPUs\n");
3237 exit(1);
3238 }
3239 if (max_cpus < smp_cpus) {
3240 fprintf(stderr, "maxcpus must be equal to or greater than "
3241 "smp\n");
3242 exit(1);
3243 }
3244 if (max_cpus > 255) {
3245 fprintf(stderr, "Unsupported number of maxcpus\n");
3246 exit(1);
3247 }
3248 break;
3249 case QEMU_OPTION_vnc:
3250 display_type = DT_VNC;
3251 vnc_display = optarg;
3252 break;
3253 case QEMU_OPTION_no_acpi:
3254 acpi_enabled = 0;
3255 break;
3256 case QEMU_OPTION_no_hpet:
3257 no_hpet = 1;
3258 break;
3259 case QEMU_OPTION_balloon:
3260 if (balloon_parse(optarg) < 0) {
3261 fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
3262 exit(1);
3263 }
3264 break;
3265 case QEMU_OPTION_no_reboot:
3266 no_reboot = 1;
3267 break;
3268 case QEMU_OPTION_no_shutdown:
3269 no_shutdown = 1;
3270 break;
3271 case QEMU_OPTION_show_cursor:
3272 cursor_hide = 0;
3273 break;
3274 case QEMU_OPTION_uuid:
3275 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
3276 fprintf(stderr, "Fail to parse UUID string."
3277 " Wrong format.\n");
3278 exit(1);
3279 }
3280 break;
3281 #ifndef _WIN32
3282 case QEMU_OPTION_daemonize:
3283 daemonize = 1;
3284 break;
3285 #endif
3286 case QEMU_OPTION_option_rom:
3287 if (nb_option_roms >= MAX_OPTION_ROMS) {
3288 fprintf(stderr, "Too many option ROMs\n");
3289 exit(1);
3290 }
3291 option_rom[nb_option_roms] = optarg;
3292 nb_option_roms++;
3293 break;
3294 case QEMU_OPTION_semihosting:
3295 semihosting_enabled = 1;
3296 break;
3297 case QEMU_OPTION_name:
3298 qemu_name = qemu_strdup(optarg);
3299 {
3300 char *p = strchr(qemu_name, ',');
3301 if (p != NULL) {
3302 *p++ = 0;
3303 if (strncmp(p, "process=", 8)) {
3304 fprintf(stderr, "Unknown subargument %s to -name", p);
3305 exit(1);
3306 }
3307 p += 8;
3308 set_proc_name(p);
3309 }
3310 }
3311 break;
3312 case QEMU_OPTION_prom_env:
3313 if (nb_prom_envs >= MAX_PROM_ENVS) {
3314 fprintf(stderr, "Too many prom variables\n");
3315 exit(1);
3316 }
3317 prom_envs[nb_prom_envs] = optarg;
3318 nb_prom_envs++;
3319 break;
3320 case QEMU_OPTION_old_param:
3321 old_param = 1;
3322 break;
3323 case QEMU_OPTION_clock:
3324 configure_alarms(optarg);
3325 break;
3326 case QEMU_OPTION_startdate:
3327 configure_rtc_date_offset(optarg, 1);
3328 break;
3329 case QEMU_OPTION_rtc:
3330 opts = qemu_opts_parse(&qemu_rtc_opts, optarg, 0);
3331 if (!opts) {
3332 exit(1);
3333 }
3334 configure_rtc(opts);
3335 break;
3336 case QEMU_OPTION_tb_size:
3337 tb_size = strtol(optarg, NULL, 0);
3338 if (tb_size < 0)
3339 tb_size = 0;
3340 break;
3341 case QEMU_OPTION_icount:
3342 icount_option = optarg;
3343 break;
3344 case QEMU_OPTION_incoming:
3345 incoming = optarg;
3346 break;
3347 case QEMU_OPTION_nodefaults:
3348 default_serial = 0;
3349 default_parallel = 0;
3350 default_virtcon = 0;
3351 default_monitor = 0;
3352 default_vga = 0;
3353 default_net = 0;
3354 default_floppy = 0;
3355 default_cdrom = 0;
3356 default_sdcard = 0;
3357 break;
3358 #ifndef _WIN32
3359 case QEMU_OPTION_chroot:
3360 chroot_dir = optarg;
3361 break;
3362 case QEMU_OPTION_runas:
3363 run_as = optarg;
3364 break;
3365 #endif
3366 case QEMU_OPTION_xen_domid:
3367 if (!(xen_available())) {
3368 printf("Option %s not supported for this target\n", popt->name);
3369 exit(1);
3370 }
3371 xen_domid = atoi(optarg);
3372 break;
3373 case QEMU_OPTION_xen_create:
3374 if (!(xen_available())) {
3375 printf("Option %s not supported for this target\n", popt->name);
3376 exit(1);
3377 }
3378 xen_mode = XEN_CREATE;
3379 break;
3380 case QEMU_OPTION_xen_attach:
3381 if (!(xen_available())) {
3382 printf("Option %s not supported for this target\n", popt->name);
3383 exit(1);
3384 }
3385 xen_mode = XEN_ATTACH;
3386 break;
3387 case QEMU_OPTION_readconfig:
3388 {
3389 int ret = qemu_read_config_file(optarg);
3390 if (ret < 0) {
3391 fprintf(stderr, "read config %s: %s\n", optarg,
3392 strerror(-ret));
3393 exit(1);
3394 }
3395 break;
3396 }
3397 case QEMU_OPTION_writeconfig:
3398 {
3399 FILE *fp;
3400 if (strcmp(optarg, "-") == 0) {
3401 fp = stdout;
3402 } else {
3403 fp = fopen(optarg, "w");
3404 if (fp == NULL) {
3405 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
3406 exit(1);
3407 }
3408 }
3409 qemu_config_write(fp);
3410 fclose(fp);
3411 break;
3412 }
3413 }
3414 }
3415 }
3416 loc_set_none();
3417
3418 /* If no data_dir is specified then try to find it relative to the
3419 executable path. */
3420 if (!data_dir) {
3421 data_dir = find_datadir(argv[0]);
3422 }
3423 /* If all else fails use the install patch specified when building. */
3424 if (!data_dir) {
3425 data_dir = CONFIG_QEMU_DATADIR;
3426 }
3427
3428 /*
3429 * Default to max_cpus = smp_cpus, in case the user doesn't
3430 * specify a max_cpus value.
3431 */
3432 if (!max_cpus)
3433 max_cpus = smp_cpus;
3434
3435 machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
3436 if (smp_cpus > machine->max_cpus) {
3437 fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
3438 "supported by machine `%s' (%d)\n", smp_cpus, machine->name,
3439 machine->max_cpus);
3440 exit(1);
3441 }
3442
3443 qemu_opts_foreach(&qemu_device_opts, default_driver_check, NULL, 0);
3444 qemu_opts_foreach(&qemu_global_opts, default_driver_check, NULL, 0);
3445
3446 if (machine->no_serial) {
3447 default_serial = 0;
3448 }
3449 if (machine->no_parallel) {
3450 default_parallel = 0;
3451 }
3452 if (!machine->use_virtcon) {
3453 default_virtcon = 0;
3454 }
3455 if (machine->no_vga) {
3456 default_vga = 0;
3457 }
3458 if (machine->no_floppy) {
3459 default_floppy = 0;
3460 }
3461 if (machine->no_cdrom) {
3462 default_cdrom = 0;
3463 }
3464 if (machine->no_sdcard) {
3465 default_sdcard = 0;
3466 }
3467
3468 if (display_type == DT_NOGRAPHIC) {
3469 if (default_parallel)
3470 add_device_config(DEV_PARALLEL, "null");
3471 if (default_serial && default_monitor) {
3472 add_device_config(DEV_SERIAL, "mon:stdio");
3473 } else if (default_virtcon && default_monitor) {
3474 add_device_config(DEV_VIRTCON, "mon:stdio");
3475 } else {
3476 if (default_serial)
3477 add_device_config(DEV_SERIAL, "stdio");
3478 if (default_virtcon)
3479 add_device_config(DEV_VIRTCON, "stdio");
3480 if (default_monitor)
3481 monitor_parse("stdio", "readline");
3482 }
3483 } else {
3484 if (default_serial)
3485 add_device_config(DEV_SERIAL, "vc:80Cx24C");
3486 if (default_parallel)
3487 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
3488 if (default_monitor)
3489 monitor_parse("vc:80Cx24C", "readline");
3490 if (default_virtcon)
3491 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
3492 }
3493 if (default_vga)
3494 vga_interface_type = VGA_CIRRUS;
3495
3496 socket_init();
3497
3498 if (qemu_opts_foreach(&qemu_chardev_opts, chardev_init_func, NULL, 1) != 0)
3499 exit(1);
3500 #ifdef CONFIG_LINUX
3501 if (qemu_opts_foreach(&qemu_fsdev_opts, fsdev_init_func, NULL, 1) != 0) {
3502 exit(1);
3503 }
3504 #endif
3505
3506 #ifndef _WIN32
3507 if (daemonize) {
3508 pid_t pid;
3509
3510 if (pipe(fds) == -1)
3511 exit(1);
3512
3513 pid = fork();
3514 if (pid > 0) {
3515 uint8_t status;
3516 ssize_t len;
3517
3518 close(fds[1]);
3519
3520 again:
3521 len = read(fds[0], &status, 1);
3522 if (len == -1 && (errno == EINTR))
3523 goto again;
3524
3525 if (len != 1)
3526 exit(1);
3527 else if (status == 1) {
3528 fprintf(stderr, "Could not acquire pidfile: %s\n", strerror(errno));
3529 exit(1);
3530 } else
3531 exit(0);
3532 } else if (pid < 0)
3533 exit(1);
3534
3535 close(fds[0]);
3536 qemu_set_cloexec(fds[1]);
3537
3538 setsid();
3539
3540 pid = fork();
3541 if (pid > 0)
3542 exit(0);
3543 else if (pid < 0)
3544 exit(1);
3545
3546 umask(027);
3547
3548 signal(SIGTSTP, SIG_IGN);
3549 signal(SIGTTOU, SIG_IGN);
3550 signal(SIGTTIN, SIG_IGN);
3551 }
3552 #endif
3553
3554 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
3555 #ifndef _WIN32
3556 if (daemonize) {
3557 uint8_t status = 1;
3558 if (write(fds[1], &status, 1) != 1) {
3559 perror("daemonize. Writing to pipe\n");
3560 }
3561 } else
3562 #endif
3563 fprintf(stderr, "Could not acquire pid file: %s\n", strerror(errno));
3564 exit(1);
3565 }
3566
3567 if (kvm_allowed) {
3568 int ret = kvm_init(smp_cpus);
3569 if (ret < 0) {
3570 if (!kvm_available()) {
3571 printf("KVM not supported for this target\n");
3572 } else {
3573 fprintf(stderr, "failed to initialize KVM: %s\n", strerror(-ret));
3574 }
3575 exit(1);
3576 }
3577 }
3578
3579 if (qemu_init_main_loop()) {
3580 fprintf(stderr, "qemu_init_main_loop failed\n");
3581 exit(1);
3582 }
3583 linux_boot = (kernel_filename != NULL);
3584
3585 if (!linux_boot && *kernel_cmdline != '\0') {
3586 fprintf(stderr, "-append only allowed with -kernel option\n");
3587 exit(1);
3588 }
3589
3590 if (!linux_boot && initrd_filename != NULL) {
3591 fprintf(stderr, "-initrd only allowed with -kernel option\n");
3592 exit(1);
3593 }
3594
3595 #ifndef _WIN32
3596 /* Win32 doesn't support line-buffering and requires size >= 2 */
3597 setvbuf(stdout, NULL, _IOLBF, 0);
3598 #endif
3599
3600 if (init_timer_alarm() < 0) {
3601 fprintf(stderr, "could not initialize alarm timer\n");
3602 exit(1);
3603 }
3604 configure_icount(icount_option);
3605
3606 if (net_init_clients() < 0) {
3607 exit(1);
3608 }
3609
3610 /* init the bluetooth world */
3611 if (foreach_device_config(DEV_BT, bt_parse))
3612 exit(1);
3613
3614 /* init the memory */
3615 if (ram_size == 0)
3616 ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
3617
3618 /* init the dynamic translator */
3619 cpu_exec_init_all(tb_size * 1024 * 1024);
3620
3621 bdrv_init_with_whitelist();
3622
3623 blk_mig_init();
3624
3625 if (default_cdrom) {
3626 /* we always create the cdrom drive, even if no disk is there */
3627 drive_add(NULL, CDROM_ALIAS);
3628 }
3629
3630 if (default_floppy) {
3631 /* we always create at least one floppy */
3632 drive_add(NULL, FD_ALIAS, 0);
3633 }
3634
3635 if (default_sdcard) {
3636 /* we always create one sd slot, even if no card is in it */
3637 drive_add(NULL, SD_ALIAS);
3638 }
3639
3640 /* open the virtual block devices */
3641 if (snapshot)
3642 qemu_opts_foreach(&qemu_drive_opts, drive_enable_snapshot, NULL, 0);
3643 if (qemu_opts_foreach(&qemu_drive_opts, drive_init_func, machine, 1) != 0)
3644 exit(1);
3645
3646 register_savevm_live("ram", 0, 3, NULL, ram_save_live, NULL,
3647 ram_load, NULL);
3648
3649 if (nb_numa_nodes > 0) {
3650 int i;
3651
3652 if (nb_numa_nodes > smp_cpus) {
3653 nb_numa_nodes = smp_cpus;
3654 }
3655
3656 /* If no memory size if given for any node, assume the default case
3657 * and distribute the available memory equally across all nodes
3658 */
3659 for (i = 0; i < nb_numa_nodes; i++) {
3660 if (node_mem[i] != 0)
3661 break;
3662 }
3663 if (i == nb_numa_nodes) {
3664 uint64_t usedmem = 0;
3665
3666 /* On Linux, the each node's border has to be 8MB aligned,
3667 * the final node gets the rest.
3668 */
3669 for (i = 0; i < nb_numa_nodes - 1; i++) {
3670 node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1);
3671 usedmem += node_mem[i];
3672 }
3673 node_mem[i] = ram_size - usedmem;
3674 }
3675
3676 for (i = 0; i < nb_numa_nodes; i++) {
3677 if (node_cpumask[i] != 0)
3678 break;
3679 }
3680 /* assigning the VCPUs round-robin is easier to implement, guest OSes
3681 * must cope with this anyway, because there are BIOSes out there in
3682 * real machines which also use this scheme.
3683 */
3684 if (i == nb_numa_nodes) {
3685 for (i = 0; i < smp_cpus; i++) {
3686 node_cpumask[i % nb_numa_nodes] |= 1 << i;
3687 }
3688 }
3689 }
3690
3691 if (qemu_opts_foreach(&qemu_mon_opts, mon_init_func, NULL, 1) != 0) {
3692 exit(1);
3693 }
3694
3695 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
3696 exit(1);
3697 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
3698 exit(1);
3699 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
3700 exit(1);
3701 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
3702 exit(1);
3703
3704 module_call_init(MODULE_INIT_DEVICE);
3705
3706 if (qemu_opts_foreach(&qemu_device_opts, device_help_func, NULL, 0) != 0)
3707 exit(0);
3708
3709 if (watchdog) {
3710 i = select_watchdog(watchdog);
3711 if (i > 0)
3712 exit (i == 1 ? 1 : 0);
3713 }
3714
3715 if (machine->compat_props) {
3716 qdev_prop_register_global_list(machine->compat_props);
3717 }
3718 qemu_add_globals();
3719
3720 machine->init(ram_size, boot_devices,
3721 kernel_filename, kernel_cmdline, initrd_filename, cpu_model);
3722
3723 cpu_synchronize_all_post_init();
3724
3725 #ifndef _WIN32
3726 /* must be after terminal init, SDL library changes signal handlers */
3727 sighandler_setup();
3728 #endif
3729
3730 set_numa_modes();
3731
3732 current_machine = machine;
3733
3734 /* init USB devices */
3735 if (usb_enabled) {
3736 if (foreach_device_config(DEV_USB, usb_parse) < 0)
3737 exit(1);
3738 }
3739
3740 /* init generic devices */
3741 if (qemu_opts_foreach(&qemu_device_opts, device_init_func, NULL, 1) != 0)
3742 exit(1);
3743
3744 net_check_clients();
3745
3746 /* just use the first displaystate for the moment */
3747 ds = get_displaystate();
3748
3749 if (display_type == DT_DEFAULT) {
3750 #if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
3751 display_type = DT_SDL;
3752 #else
3753 display_type = DT_VNC;
3754 vnc_display = "localhost:0,to=99";
3755 show_vnc_port = 1;
3756 #endif
3757 }
3758
3759
3760 switch (display_type) {
3761 case DT_NOGRAPHIC:
3762 break;
3763 #if defined(CONFIG_CURSES)
3764 case DT_CURSES:
3765 curses_display_init(ds, full_screen);
3766 break;
3767 #endif
3768 #if defined(CONFIG_SDL)
3769 case DT_SDL:
3770 sdl_display_init(ds, full_screen, no_frame);
3771 break;
3772 #elif defined(CONFIG_COCOA)
3773 case DT_SDL:
3774 cocoa_display_init(ds, full_screen);
3775 break;
3776 #endif
3777 case DT_VNC:
3778 vnc_display_init(ds);
3779 if (vnc_display_open(ds, vnc_display) < 0)
3780 exit(1);
3781
3782 if (show_vnc_port) {
3783 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
3784 }
3785 break;
3786 default:
3787 break;
3788 }
3789 dpy_resize(ds);
3790
3791 dcl = ds->listeners;
3792 while (dcl != NULL) {
3793 if (dcl->dpy_refresh != NULL) {
3794 ds->gui_timer = qemu_new_timer(rt_clock, gui_update, ds);
3795 qemu_mod_timer(ds->gui_timer, qemu_get_clock(rt_clock));
3796 break;
3797 }
3798 dcl = dcl->next;
3799 }
3800
3801 if (display_type == DT_NOGRAPHIC || display_type == DT_VNC) {
3802 nographic_timer = qemu_new_timer(rt_clock, nographic_update, NULL);
3803 qemu_mod_timer(nographic_timer, qemu_get_clock(rt_clock));
3804 }
3805
3806 text_consoles_set_display(ds);
3807
3808 if (gdbstub_dev && gdbserver_start(gdbstub_dev) < 0) {
3809 fprintf(stderr, "qemu: could not open gdbserver on device '%s'\n",
3810 gdbstub_dev);
3811 exit(1);
3812 }
3813
3814 qdev_machine_creation_done();
3815
3816 if (rom_load_all() != 0) {
3817 fprintf(stderr, "rom loading failed\n");
3818 exit(1);
3819 }
3820
3821 qemu_system_reset();
3822 if (loadvm) {
3823 if (load_vmstate(loadvm) < 0) {
3824 autostart = 0;
3825 }
3826 }
3827
3828 if (incoming) {
3829 qemu_start_incoming_migration(incoming);
3830 } else if (autostart) {
3831 vm_start();
3832 }
3833
3834 #ifndef _WIN32
3835 if (daemonize) {
3836 uint8_t status = 0;
3837 ssize_t len;
3838
3839 again1:
3840 len = write(fds[1], &status, 1);
3841 if (len == -1 && (errno == EINTR))
3842 goto again1;
3843
3844 if (len != 1)
3845 exit(1);
3846
3847 if (chdir("/")) {
3848 perror("not able to chdir to /");
3849 exit(1);
3850 }
3851 TFR(fd = qemu_open("/dev/null", O_RDWR));
3852 if (fd == -1)
3853 exit(1);
3854 }
3855
3856 if (run_as) {
3857 pwd = getpwnam(run_as);
3858 if (!pwd) {
3859 fprintf(stderr, "User \"%s\" doesn't exist\n", run_as);
3860 exit(1);
3861 }
3862 }
3863
3864 if (chroot_dir) {
3865 if (chroot(chroot_dir) < 0) {
3866 fprintf(stderr, "chroot failed\n");
3867 exit(1);
3868 }
3869 if (chdir("/")) {
3870 perror("not able to chdir to /");
3871 exit(1);
3872 }
3873 }
3874
3875 if (run_as) {
3876 if (setgid(pwd->pw_gid) < 0) {
3877 fprintf(stderr, "Failed to setgid(%d)\n", pwd->pw_gid);
3878 exit(1);
3879 }
3880 if (setuid(pwd->pw_uid) < 0) {
3881 fprintf(stderr, "Failed to setuid(%d)\n", pwd->pw_uid);
3882 exit(1);
3883 }
3884 if (setuid(0) != -1) {
3885 fprintf(stderr, "Dropping privileges failed\n");
3886 exit(1);
3887 }
3888 }
3889
3890 if (daemonize) {
3891 dup2(fd, 0);
3892 dup2(fd, 1);
3893 dup2(fd, 2);
3894
3895 close(fd);
3896 }
3897 #endif
3898
3899 main_loop();
3900 quit_timers();
3901 net_cleanup();
3902
3903 return 0;
3904 }
Zhi Yong Wu's QEmu Source Tree - dev