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Introduce OS specific cmdline argument handling and move SMB arg to os-posix.c
[qemu.git] / vl.c
blobb08b5adf9a37276eaf2a4bceb073de271570bb3b
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 #include "qemu-options.h"
152 #ifdef CONFIG_LINUX
153 #include "fsdev/qemu-fsdev.h"
154 #endif
155
156 #include "disas.h"
157
158 #include "qemu_socket.h"
159
160 #include "slirp/libslirp.h"
161
162 #include "qemu-queue.h"
163 #include "cpus.h"
164 #include "arch_init.h"
165
166 //#define DEBUG_NET
167 //#define DEBUG_SLIRP
168
169 #define DEFAULT_RAM_SIZE 128
170
171 #define MAX_VIRTIO_CONSOLES 1
172
173 static const char *data_dir;
174 const char *bios_name = NULL;
175 /* Note: drives_table[MAX_DRIVES] is a dummy block driver if none available
176 to store the VM snapshots */
177 struct drivelist drives = QTAILQ_HEAD_INITIALIZER(drives);
178 struct driveoptlist driveopts = QTAILQ_HEAD_INITIALIZER(driveopts);
179 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
180 DisplayType display_type = DT_DEFAULT;
181 const char* keyboard_layout = NULL;
182 ram_addr_t ram_size;
183 const char *mem_path = NULL;
184 #ifdef MAP_POPULATE
185 int mem_prealloc = 0; /* force preallocation of physical target memory */
186 #endif
187 int nb_nics;
188 NICInfo nd_table[MAX_NICS];
189 int vm_running;
190 int autostart;
191 static int rtc_utc = 1;
192 static int rtc_date_offset = -1; /* -1 means no change */
193 QEMUClock *rtc_clock;
194 int vga_interface_type = VGA_NONE;
195 static int full_screen = 0;
196 #ifdef CONFIG_SDL
197 static int no_frame = 0;
198 #endif
199 int no_quit = 0;
200 CharDriverState *serial_hds[MAX_SERIAL_PORTS];
201 CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
202 CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES];
203 int win2k_install_hack = 0;
204 int rtc_td_hack = 0;
205 int usb_enabled = 0;
206 int singlestep = 0;
207 int smp_cpus = 1;
208 int max_cpus = 0;
209 int smp_cores = 1;
210 int smp_threads = 1;
211 const char *vnc_display;
212 int acpi_enabled = 1;
213 int no_hpet = 0;
214 int fd_bootchk = 1;
215 int no_reboot = 0;
216 int no_shutdown = 0;
217 int cursor_hide = 1;
218 int graphic_rotate = 0;
219 uint8_t irq0override = 1;
220 #ifndef _WIN32
221 int daemonize = 0;
222 #endif
223 const char *watchdog;
224 const char *option_rom[MAX_OPTION_ROMS];
225 int nb_option_roms;
226 int semihosting_enabled = 0;
227 int old_param = 0;
228 const char *qemu_name;
229 int alt_grab = 0;
230 int ctrl_grab = 0;
231 unsigned int nb_prom_envs = 0;
232 const char *prom_envs[MAX_PROM_ENVS];
233 int boot_menu;
234
235 int nb_numa_nodes;
236 uint64_t node_mem[MAX_NODES];
237 uint64_t node_cpumask[MAX_NODES];
238
239 static QEMUTimer *nographic_timer;
240
241 uint8_t qemu_uuid[16];
242
243 static QEMUBootSetHandler *boot_set_handler;
244 static void *boot_set_opaque;
245
246 int kvm_allowed = 0;
247 uint32_t xen_domid;
248 enum xen_mode xen_mode = XEN_EMULATE;
249
250 static int default_serial = 1;
251 static int default_parallel = 1;
252 static int default_virtcon = 1;
253 static int default_monitor = 1;
254 static int default_vga = 1;
255 static int default_floppy = 1;
256 static int default_cdrom = 1;
257 static int default_sdcard = 1;
258
259 static struct {
260 const char *driver;
261 int *flag;
262 } default_list[] = {
263 { .driver = "isa-serial", .flag = &default_serial },
264 { .driver = "isa-parallel", .flag = &default_parallel },
265 { .driver = "isa-fdc", .flag = &default_floppy },
266 { .driver = "ide-drive", .flag = &default_cdrom },
267 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
268 { .driver = "virtio-serial-s390", .flag = &default_virtcon },
269 { .driver = "virtio-serial", .flag = &default_virtcon },
270 { .driver = "VGA", .flag = &default_vga },
271 { .driver = "cirrus-vga", .flag = &default_vga },
272 { .driver = "vmware-svga", .flag = &default_vga },
273 };
274
275 static int default_driver_check(QemuOpts *opts, void *opaque)
276 {
277 const char *driver = qemu_opt_get(opts, "driver");
278 int i;
279
280 if (!driver)
281 return 0;
282 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
283 if (strcmp(default_list[i].driver, driver) != 0)
284 continue;
285 *(default_list[i].flag) = 0;
286 }
287 return 0;
288 }
289
290 /***********************************************************/
291
292 static void set_proc_name(const char *s)
293 {
294 #if defined(__linux__) && defined(PR_SET_NAME)
295 char name[16];
296 if (!s)
297 return;
298 name[sizeof(name) - 1] = 0;
299 strncpy(name, s, sizeof(name));
300 /* Could rewrite argv[0] too, but that's a bit more complicated.
301 This simple way is enough for `top'. */
302 prctl(PR_SET_NAME, name);
303 #endif
304 }
305
306 /***********************************************************/
307 /* real time host monotonic timer */
308
309 /* compute with 96 bit intermediate result: (a*b)/c */
310 uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
311 {
312 union {
313 uint64_t ll;
314 struct {
315 #ifdef HOST_WORDS_BIGENDIAN
316 uint32_t high, low;
317 #else
318 uint32_t low, high;
319 #endif
320 } l;
321 } u, res;
322 uint64_t rl, rh;
323
324 u.ll = a;
325 rl = (uint64_t)u.l.low * (uint64_t)b;
326 rh = (uint64_t)u.l.high * (uint64_t)b;
327 rh += (rl >> 32);
328 res.l.high = rh / c;
329 res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
330 return res.ll;
331 }
332
333 /***********************************************************/
334 /* host time/date access */
335 void qemu_get_timedate(struct tm *tm, int offset)
336 {
337 time_t ti;
338 struct tm *ret;
339
340 time(&ti);
341 ti += offset;
342 if (rtc_date_offset == -1) {
343 if (rtc_utc)
344 ret = gmtime(&ti);
345 else
346 ret = localtime(&ti);
347 } else {
348 ti -= rtc_date_offset;
349 ret = gmtime(&ti);
350 }
351
352 memcpy(tm, ret, sizeof(struct tm));
353 }
354
355 int qemu_timedate_diff(struct tm *tm)
356 {
357 time_t seconds;
358
359 if (rtc_date_offset == -1)
360 if (rtc_utc)
361 seconds = mktimegm(tm);
362 else
363 seconds = mktime(tm);
364 else
365 seconds = mktimegm(tm) + rtc_date_offset;
366
367 return seconds - time(NULL);
368 }
369
370 void rtc_change_mon_event(struct tm *tm)
371 {
372 QObject *data;
373
374 data = qobject_from_jsonf("{ 'offset': %d }", qemu_timedate_diff(tm));
375 monitor_protocol_event(QEVENT_RTC_CHANGE, data);
376 qobject_decref(data);
377 }
378
379 static void configure_rtc_date_offset(const char *startdate, int legacy)
380 {
381 time_t rtc_start_date;
382 struct tm tm;
383
384 if (!strcmp(startdate, "now") && legacy) {
385 rtc_date_offset = -1;
386 } else {
387 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
388 &tm.tm_year,
389 &tm.tm_mon,
390 &tm.tm_mday,
391 &tm.tm_hour,
392 &tm.tm_min,
393 &tm.tm_sec) == 6) {
394 /* OK */
395 } else if (sscanf(startdate, "%d-%d-%d",
396 &tm.tm_year,
397 &tm.tm_mon,
398 &tm.tm_mday) == 3) {
399 tm.tm_hour = 0;
400 tm.tm_min = 0;
401 tm.tm_sec = 0;
402 } else {
403 goto date_fail;
404 }
405 tm.tm_year -= 1900;
406 tm.tm_mon--;
407 rtc_start_date = mktimegm(&tm);
408 if (rtc_start_date == -1) {
409 date_fail:
410 fprintf(stderr, "Invalid date format. Valid formats are:\n"
411 "'2006-06-17T16:01:21' or '2006-06-17'\n");
412 exit(1);
413 }
414 rtc_date_offset = time(NULL) - rtc_start_date;
415 }
416 }
417
418 static void configure_rtc(QemuOpts *opts)
419 {
420 const char *value;
421
422 value = qemu_opt_get(opts, "base");
423 if (value) {
424 if (!strcmp(value, "utc")) {
425 rtc_utc = 1;
426 } else if (!strcmp(value, "localtime")) {
427 rtc_utc = 0;
428 } else {
429 configure_rtc_date_offset(value, 0);
430 }
431 }
432 value = qemu_opt_get(opts, "clock");
433 if (value) {
434 if (!strcmp(value, "host")) {
435 rtc_clock = host_clock;
436 } else if (!strcmp(value, "vm")) {
437 rtc_clock = vm_clock;
438 } else {
439 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
440 exit(1);
441 }
442 }
443 value = qemu_opt_get(opts, "driftfix");
444 if (value) {
445 if (!strcmp(value, "slew")) {
446 rtc_td_hack = 1;
447 } else if (!strcmp(value, "none")) {
448 rtc_td_hack = 0;
449 } else {
450 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
451 exit(1);
452 }
453 }
454 }
455
456 /***********************************************************/
457 /* Bluetooth support */
458 static int nb_hcis;
459 static int cur_hci;
460 static struct HCIInfo *hci_table[MAX_NICS];
461
462 static struct bt_vlan_s {
463 struct bt_scatternet_s net;
464 int id;
465 struct bt_vlan_s *next;
466 } *first_bt_vlan;
467
468 /* find or alloc a new bluetooth "VLAN" */
469 static struct bt_scatternet_s *qemu_find_bt_vlan(int id)
470 {
471 struct bt_vlan_s **pvlan, *vlan;
472 for (vlan = first_bt_vlan; vlan != NULL; vlan = vlan->next) {
473 if (vlan->id == id)
474 return &vlan->net;
475 }
476 vlan = qemu_mallocz(sizeof(struct bt_vlan_s));
477 vlan->id = id;
478 pvlan = &first_bt_vlan;
479 while (*pvlan != NULL)
480 pvlan = &(*pvlan)->next;
481 *pvlan = vlan;
482 return &vlan->net;
483 }
484
485 static void null_hci_send(struct HCIInfo *hci, const uint8_t *data, int len)
486 {
487 }
488
489 static int null_hci_addr_set(struct HCIInfo *hci, const uint8_t *bd_addr)
490 {
491 return -ENOTSUP;
492 }
493
494 static struct HCIInfo null_hci = {
495 .cmd_send = null_hci_send,
496 .sco_send = null_hci_send,
497 .acl_send = null_hci_send,
498 .bdaddr_set = null_hci_addr_set,
499 };
500
501 struct HCIInfo *qemu_next_hci(void)
502 {
503 if (cur_hci == nb_hcis)
504 return &null_hci;
505
506 return hci_table[cur_hci++];
507 }
508
509 static struct HCIInfo *hci_init(const char *str)
510 {
511 char *endp;
512 struct bt_scatternet_s *vlan = 0;
513
514 if (!strcmp(str, "null"))
515 /* null */
516 return &null_hci;
517 else if (!strncmp(str, "host", 4) && (str[4] == '\0' || str[4] == ':'))
518 /* host[:hciN] */
519 return bt_host_hci(str[4] ? str + 5 : "hci0");
520 else if (!strncmp(str, "hci", 3)) {
521 /* hci[,vlan=n] */
522 if (str[3]) {
523 if (!strncmp(str + 3, ",vlan=", 6)) {
524 vlan = qemu_find_bt_vlan(strtol(str + 9, &endp, 0));
525 if (*endp)
526 vlan = 0;
527 }
528 } else
529 vlan = qemu_find_bt_vlan(0);
530 if (vlan)
531 return bt_new_hci(vlan);
532 }
533
534 fprintf(stderr, "qemu: Unknown bluetooth HCI `%s'.\n", str);
535
536 return 0;
537 }
538
539 static int bt_hci_parse(const char *str)
540 {
541 struct HCIInfo *hci;
542 bdaddr_t bdaddr;
543
544 if (nb_hcis >= MAX_NICS) {
545 fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
546 return -1;
547 }
548
549 hci = hci_init(str);
550 if (!hci)
551 return -1;
552
553 bdaddr.b[0] = 0x52;
554 bdaddr.b[1] = 0x54;
555 bdaddr.b[2] = 0x00;
556 bdaddr.b[3] = 0x12;
557 bdaddr.b[4] = 0x34;
558 bdaddr.b[5] = 0x56 + nb_hcis;
559 hci->bdaddr_set(hci, bdaddr.b);
560
561 hci_table[nb_hcis++] = hci;
562
563 return 0;
564 }
565
566 static void bt_vhci_add(int vlan_id)
567 {
568 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
569
570 if (!vlan->slave)
571 fprintf(stderr, "qemu: warning: adding a VHCI to "
572 "an empty scatternet %i\n", vlan_id);
573
574 bt_vhci_init(bt_new_hci(vlan));
575 }
576
577 static struct bt_device_s *bt_device_add(const char *opt)
578 {
579 struct bt_scatternet_s *vlan;
580 int vlan_id = 0;
581 char *endp = strstr(opt, ",vlan=");
582 int len = (endp ? endp - opt : strlen(opt)) + 1;
583 char devname[10];
584
585 pstrcpy(devname, MIN(sizeof(devname), len), opt);
586
587 if (endp) {
588 vlan_id = strtol(endp + 6, &endp, 0);
589 if (*endp) {
590 fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
591 return 0;
592 }
593 }
594
595 vlan = qemu_find_bt_vlan(vlan_id);
596
597 if (!vlan->slave)
598 fprintf(stderr, "qemu: warning: adding a slave device to "
599 "an empty scatternet %i\n", vlan_id);
600
601 if (!strcmp(devname, "keyboard"))
602 return bt_keyboard_init(vlan);
603
604 fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
605 return 0;
606 }
607
608 static int bt_parse(const char *opt)
609 {
610 const char *endp, *p;
611 int vlan;
612
613 if (strstart(opt, "hci", &endp)) {
614 if (!*endp || *endp == ',') {
615 if (*endp)
616 if (!strstart(endp, ",vlan=", 0))
617 opt = endp + 1;
618
619 return bt_hci_parse(opt);
620 }
621 } else if (strstart(opt, "vhci", &endp)) {
622 if (!*endp || *endp == ',') {
623 if (*endp) {
624 if (strstart(endp, ",vlan=", &p)) {
625 vlan = strtol(p, (char **) &endp, 0);
626 if (*endp) {
627 fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
628 return 1;
629 }
630 } else {
631 fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1);
632 return 1;
633 }
634 } else
635 vlan = 0;
636
637 bt_vhci_add(vlan);
638 return 0;
639 }
640 } else if (strstart(opt, "device:", &endp))
641 return !bt_device_add(endp);
642
643 fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
644 return 1;
645 }
646
647 /***********************************************************/
648 /* QEMU Block devices */
649
650 #define HD_ALIAS "index=%d,media=disk"
651 #define CDROM_ALIAS "index=2,media=cdrom"
652 #define FD_ALIAS "index=%d,if=floppy"
653 #define PFLASH_ALIAS "if=pflash"
654 #define MTD_ALIAS "if=mtd"
655 #define SD_ALIAS "index=0,if=sd"
656
657 QemuOpts *drive_add(const char *file, const char *fmt, ...)
658 {
659 va_list ap;
660 char optstr[1024];
661 QemuOpts *opts;
662
663 va_start(ap, fmt);
664 vsnprintf(optstr, sizeof(optstr), fmt, ap);
665 va_end(ap);
666
667 opts = qemu_opts_parse(&qemu_drive_opts, optstr, 0);
668 if (!opts) {
669 return NULL;
670 }
671 if (file)
672 qemu_opt_set(opts, "file", file);
673 return opts;
674 }
675
676 DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit)
677 {
678 DriveInfo *dinfo;
679
680 /* seek interface, bus and unit */
681
682 QTAILQ_FOREACH(dinfo, &drives, next) {
683 if (dinfo->type == type &&
684 dinfo->bus == bus &&
685 dinfo->unit == unit)
686 return dinfo;
687 }
688
689 return NULL;
690 }
691
692 DriveInfo *drive_get_by_id(const char *id)
693 {
694 DriveInfo *dinfo;
695
696 QTAILQ_FOREACH(dinfo, &drives, next) {
697 if (strcmp(id, dinfo->id))
698 continue;
699 return dinfo;
700 }
701 return NULL;
702 }
703
704 int drive_get_max_bus(BlockInterfaceType type)
705 {
706 int max_bus;
707 DriveInfo *dinfo;
708
709 max_bus = -1;
710 QTAILQ_FOREACH(dinfo, &drives, next) {
711 if(dinfo->type == type &&
712 dinfo->bus > max_bus)
713 max_bus = dinfo->bus;
714 }
715 return max_bus;
716 }
717
718 const char *drive_get_serial(BlockDriverState *bdrv)
719 {
720 DriveInfo *dinfo;
721
722 QTAILQ_FOREACH(dinfo, &drives, next) {
723 if (dinfo->bdrv == bdrv)
724 return dinfo->serial;
725 }
726
727 return "\0";
728 }
729
730 BlockInterfaceErrorAction drive_get_on_error(
731 BlockDriverState *bdrv, int is_read)
732 {
733 DriveInfo *dinfo;
734
735 QTAILQ_FOREACH(dinfo, &drives, next) {
736 if (dinfo->bdrv == bdrv)
737 return is_read ? dinfo->on_read_error : dinfo->on_write_error;
738 }
739
740 return is_read ? BLOCK_ERR_REPORT : BLOCK_ERR_STOP_ENOSPC;
741 }
742
743 static void bdrv_format_print(void *opaque, const char *name)
744 {
745 fprintf(stderr, " %s", name);
746 }
747
748 void drive_uninit(DriveInfo *dinfo)
749 {
750 qemu_opts_del(dinfo->opts);
751 bdrv_delete(dinfo->bdrv);
752 QTAILQ_REMOVE(&drives, dinfo, next);
753 qemu_free(dinfo);
754 }
755
756 static int parse_block_error_action(const char *buf, int is_read)
757 {
758 if (!strcmp(buf, "ignore")) {
759 return BLOCK_ERR_IGNORE;
760 } else if (!is_read && !strcmp(buf, "enospc")) {
761 return BLOCK_ERR_STOP_ENOSPC;
762 } else if (!strcmp(buf, "stop")) {
763 return BLOCK_ERR_STOP_ANY;
764 } else if (!strcmp(buf, "report")) {
765 return BLOCK_ERR_REPORT;
766 } else {
767 fprintf(stderr, "qemu: '%s' invalid %s error action\n",
768 buf, is_read ? "read" : "write");
769 return -1;
770 }
771 }
772
773 DriveInfo *drive_init(QemuOpts *opts, void *opaque,
774 int *fatal_error)
775 {
776 const char *buf;
777 const char *file = NULL;
778 char devname[128];
779 const char *serial;
780 const char *mediastr = "";
781 BlockInterfaceType type;
782 enum { MEDIA_DISK, MEDIA_CDROM } media;
783 int bus_id, unit_id;
784 int cyls, heads, secs, translation;
785 BlockDriver *drv = NULL;
786 QEMUMachine *machine = opaque;
787 int max_devs;
788 int index;
789 int ro = 0;
790 int bdrv_flags = 0;
791 int on_read_error, on_write_error;
792 const char *devaddr;
793 DriveInfo *dinfo;
794 int snapshot = 0;
795
796 *fatal_error = 1;
797
798 translation = BIOS_ATA_TRANSLATION_AUTO;
799
800 if (machine && machine->use_scsi) {
801 type = IF_SCSI;
802 max_devs = MAX_SCSI_DEVS;
803 pstrcpy(devname, sizeof(devname), "scsi");
804 } else {
805 type = IF_IDE;
806 max_devs = MAX_IDE_DEVS;
807 pstrcpy(devname, sizeof(devname), "ide");
808 }
809 media = MEDIA_DISK;
810
811 /* extract parameters */
812 bus_id = qemu_opt_get_number(opts, "bus", 0);
813 unit_id = qemu_opt_get_number(opts, "unit", -1);
814 index = qemu_opt_get_number(opts, "index", -1);
815
816 cyls = qemu_opt_get_number(opts, "cyls", 0);
817 heads = qemu_opt_get_number(opts, "heads", 0);
818 secs = qemu_opt_get_number(opts, "secs", 0);
819
820 snapshot = qemu_opt_get_bool(opts, "snapshot", 0);
821 ro = qemu_opt_get_bool(opts, "readonly", 0);
822
823 file = qemu_opt_get(opts, "file");
824 serial = qemu_opt_get(opts, "serial");
825
826 if ((buf = qemu_opt_get(opts, "if")) != NULL) {
827 pstrcpy(devname, sizeof(devname), buf);
828 if (!strcmp(buf, "ide")) {
829 type = IF_IDE;
830 max_devs = MAX_IDE_DEVS;
831 } else if (!strcmp(buf, "scsi")) {
832 type = IF_SCSI;
833 max_devs = MAX_SCSI_DEVS;
834 } else if (!strcmp(buf, "floppy")) {
835 type = IF_FLOPPY;
836 max_devs = 0;
837 } else if (!strcmp(buf, "pflash")) {
838 type = IF_PFLASH;
839 max_devs = 0;
840 } else if (!strcmp(buf, "mtd")) {
841 type = IF_MTD;
842 max_devs = 0;
843 } else if (!strcmp(buf, "sd")) {
844 type = IF_SD;
845 max_devs = 0;
846 } else if (!strcmp(buf, "virtio")) {
847 type = IF_VIRTIO;
848 max_devs = 0;
849 } else if (!strcmp(buf, "xen")) {
850 type = IF_XEN;
851 max_devs = 0;
852 } else if (!strcmp(buf, "none")) {
853 type = IF_NONE;
854 max_devs = 0;
855 } else {
856 fprintf(stderr, "qemu: unsupported bus type '%s'\n", buf);
857 return NULL;
858 }
859 }
860
861 if (cyls || heads || secs) {
862 if (cyls < 1 || (type == IF_IDE && cyls > 16383)) {
863 fprintf(stderr, "qemu: '%s' invalid physical cyls number\n", buf);
864 return NULL;
865 }
866 if (heads < 1 || (type == IF_IDE && heads > 16)) {
867 fprintf(stderr, "qemu: '%s' invalid physical heads number\n", buf);
868 return NULL;
869 }
870 if (secs < 1 || (type == IF_IDE && secs > 63)) {
871 fprintf(stderr, "qemu: '%s' invalid physical secs number\n", buf);
872 return NULL;
873 }
874 }
875
876 if ((buf = qemu_opt_get(opts, "trans")) != NULL) {
877 if (!cyls) {
878 fprintf(stderr,
879 "qemu: '%s' trans must be used with cyls,heads and secs\n",
880 buf);
881 return NULL;
882 }
883 if (!strcmp(buf, "none"))
884 translation = BIOS_ATA_TRANSLATION_NONE;
885 else if (!strcmp(buf, "lba"))
886 translation = BIOS_ATA_TRANSLATION_LBA;
887 else if (!strcmp(buf, "auto"))
888 translation = BIOS_ATA_TRANSLATION_AUTO;
889 else {
890 fprintf(stderr, "qemu: '%s' invalid translation type\n", buf);
891 return NULL;
892 }
893 }
894
895 if ((buf = qemu_opt_get(opts, "media")) != NULL) {
896 if (!strcmp(buf, "disk")) {
897 media = MEDIA_DISK;
898 } else if (!strcmp(buf, "cdrom")) {
899 if (cyls || secs || heads) {
900 fprintf(stderr,
901 "qemu: '%s' invalid physical CHS format\n", buf);
902 return NULL;
903 }
904 media = MEDIA_CDROM;
905 } else {
906 fprintf(stderr, "qemu: '%s' invalid media\n", buf);
907 return NULL;
908 }
909 }
910
911 if ((buf = qemu_opt_get(opts, "cache")) != NULL) {
912 if (!strcmp(buf, "off") || !strcmp(buf, "none")) {
913 bdrv_flags |= BDRV_O_NOCACHE;
914 } else if (!strcmp(buf, "writeback")) {
915 bdrv_flags |= BDRV_O_CACHE_WB;
916 } else if (!strcmp(buf, "unsafe")) {
917 bdrv_flags |= BDRV_O_CACHE_WB;
918 bdrv_flags |= BDRV_O_NO_FLUSH;
919 } else if (!strcmp(buf, "writethrough")) {
920 /* this is the default */
921 } else {
922 fprintf(stderr, "qemu: invalid cache option\n");
923 return NULL;
924 }
925 }
926
927 #ifdef CONFIG_LINUX_AIO
928 if ((buf = qemu_opt_get(opts, "aio")) != NULL) {
929 if (!strcmp(buf, "native")) {
930 bdrv_flags |= BDRV_O_NATIVE_AIO;
931 } else if (!strcmp(buf, "threads")) {
932 /* this is the default */
933 } else {
934 fprintf(stderr, "qemu: invalid aio option\n");
935 return NULL;
936 }
937 }
938 #endif
939
940 if ((buf = qemu_opt_get(opts, "format")) != NULL) {
941 if (strcmp(buf, "?") == 0) {
942 fprintf(stderr, "qemu: Supported formats:");
943 bdrv_iterate_format(bdrv_format_print, NULL);
944 fprintf(stderr, "\n");
945 return NULL;
946 }
947 drv = bdrv_find_whitelisted_format(buf);
948 if (!drv) {
949 fprintf(stderr, "qemu: '%s' invalid format\n", buf);
950 return NULL;
951 }
952 }
953
954 on_write_error = BLOCK_ERR_STOP_ENOSPC;
955 if ((buf = qemu_opt_get(opts, "werror")) != NULL) {
956 if (type != IF_IDE && type != IF_SCSI && type != IF_VIRTIO && type != IF_NONE) {
957 fprintf(stderr, "werror is no supported by this format\n");
958 return NULL;
959 }
960
961 on_write_error = parse_block_error_action(buf, 0);
962 if (on_write_error < 0) {
963 return NULL;
964 }
965 }
966
967 on_read_error = BLOCK_ERR_REPORT;
968 if ((buf = qemu_opt_get(opts, "rerror")) != NULL) {
969 if (type != IF_IDE && type != IF_VIRTIO && type != IF_NONE) {
970 fprintf(stderr, "rerror is no supported by this format\n");
971 return NULL;
972 }
973
974 on_read_error = parse_block_error_action(buf, 1);
975 if (on_read_error < 0) {
976 return NULL;
977 }
978 }
979
980 if ((devaddr = qemu_opt_get(opts, "addr")) != NULL) {
981 if (type != IF_VIRTIO) {
982 fprintf(stderr, "addr is not supported\n");
983 return NULL;
984 }
985 }
986
987 /* compute bus and unit according index */
988
989 if (index != -1) {
990 if (bus_id != 0 || unit_id != -1) {
991 fprintf(stderr,
992 "qemu: index cannot be used with bus and unit\n");
993 return NULL;
994 }
995 if (max_devs == 0)
996 {
997 unit_id = index;
998 bus_id = 0;
999 } else {
1000 unit_id = index % max_devs;
1001 bus_id = index / max_devs;
1002 }
1003 }
1004
1005 /* if user doesn't specify a unit_id,
1006 * try to find the first free
1007 */
1008
1009 if (unit_id == -1) {
1010 unit_id = 0;
1011 while (drive_get(type, bus_id, unit_id) != NULL) {
1012 unit_id++;
1013 if (max_devs && unit_id >= max_devs) {
1014 unit_id -= max_devs;
1015 bus_id++;
1016 }
1017 }
1018 }
1019
1020 /* check unit id */
1021
1022 if (max_devs && unit_id >= max_devs) {
1023 fprintf(stderr, "qemu: unit %d too big (max is %d)\n",
1024 unit_id, max_devs - 1);
1025 return NULL;
1026 }
1027
1028 /*
1029 * ignore multiple definitions
1030 */
1031
1032 if (drive_get(type, bus_id, unit_id) != NULL) {
1033 *fatal_error = 0;
1034 return NULL;
1035 }
1036
1037 /* init */
1038
1039 dinfo = qemu_mallocz(sizeof(*dinfo));
1040 if ((buf = qemu_opts_id(opts)) != NULL) {
1041 dinfo->id = qemu_strdup(buf);
1042 } else {
1043 /* no id supplied -> create one */
1044 dinfo->id = qemu_mallocz(32);
1045 if (type == IF_IDE || type == IF_SCSI)
1046 mediastr = (media == MEDIA_CDROM) ? "-cd" : "-hd";
1047 if (max_devs)
1048 snprintf(dinfo->id, 32, "%s%i%s%i",
1049 devname, bus_id, mediastr, unit_id);
1050 else
1051 snprintf(dinfo->id, 32, "%s%s%i",
1052 devname, mediastr, unit_id);
1053 }
1054 dinfo->bdrv = bdrv_new(dinfo->id);
1055 dinfo->devaddr = devaddr;
1056 dinfo->type = type;
1057 dinfo->bus = bus_id;
1058 dinfo->unit = unit_id;
1059 dinfo->on_read_error = on_read_error;
1060 dinfo->on_write_error = on_write_error;
1061 dinfo->opts = opts;
1062 if (serial)
1063 strncpy(dinfo->serial, serial, sizeof(serial));
1064 QTAILQ_INSERT_TAIL(&drives, dinfo, next);
1065
1066 switch(type) {
1067 case IF_IDE:
1068 case IF_SCSI:
1069 case IF_XEN:
1070 case IF_NONE:
1071 switch(media) {
1072 case MEDIA_DISK:
1073 if (cyls != 0) {
1074 bdrv_set_geometry_hint(dinfo->bdrv, cyls, heads, secs);
1075 bdrv_set_translation_hint(dinfo->bdrv, translation);
1076 }
1077 break;
1078 case MEDIA_CDROM:
1079 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_CDROM);
1080 break;
1081 }
1082 break;
1083 case IF_SD:
1084 /* FIXME: This isn't really a floppy, but it's a reasonable
1085 approximation. */
1086 case IF_FLOPPY:
1087 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_FLOPPY);
1088 break;
1089 case IF_PFLASH:
1090 case IF_MTD:
1091 break;
1092 case IF_VIRTIO:
1093 /* add virtio block device */
1094 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
1095 qemu_opt_set(opts, "driver", "virtio-blk-pci");
1096 qemu_opt_set(opts, "drive", dinfo->id);
1097 if (devaddr)
1098 qemu_opt_set(opts, "addr", devaddr);
1099 break;
1100 case IF_COUNT:
1101 abort();
1102 }
1103 if (!file) {
1104 *fatal_error = 0;
1105 return NULL;
1106 }
1107 if (snapshot) {
1108 /* always use cache=unsafe with snapshot */
1109 bdrv_flags &= ~BDRV_O_CACHE_MASK;
1110 bdrv_flags |= (BDRV_O_SNAPSHOT|BDRV_O_CACHE_WB|BDRV_O_NO_FLUSH);
1111 }
1112
1113 if (media == MEDIA_CDROM) {
1114 /* CDROM is fine for any interface, don't check. */
1115 ro = 1;
1116 } else if (ro == 1) {
1117 if (type != IF_SCSI && type != IF_VIRTIO && type != IF_FLOPPY && type != IF_NONE) {
1118 fprintf(stderr, "qemu: readonly flag not supported for drive with this interface\n");
1119 return NULL;
1120 }
1121 }
1122
1123 bdrv_flags |= ro ? 0 : BDRV_O_RDWR;
1124
1125 if (bdrv_open(dinfo->bdrv, file, bdrv_flags, drv) < 0) {
1126 fprintf(stderr, "qemu: could not open disk image %s: %s\n",
1127 file, strerror(errno));
1128 return NULL;
1129 }
1130
1131 if (bdrv_key_required(dinfo->bdrv))
1132 autostart = 0;
1133 *fatal_error = 0;
1134 return dinfo;
1135 }
1136
1137 static int drive_init_func(QemuOpts *opts, void *opaque)
1138 {
1139 QEMUMachine *machine = opaque;
1140 int fatal_error = 0;
1141
1142 if (drive_init(opts, machine, &fatal_error) == NULL) {
1143 if (fatal_error)
1144 return 1;
1145 }
1146 return 0;
1147 }
1148
1149 static int drive_enable_snapshot(QemuOpts *opts, void *opaque)
1150 {
1151 if (NULL == qemu_opt_get(opts, "snapshot")) {
1152 qemu_opt_set(opts, "snapshot", "on");
1153 }
1154 return 0;
1155 }
1156
1157 void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
1158 {
1159 boot_set_handler = func;
1160 boot_set_opaque = opaque;
1161 }
1162
1163 int qemu_boot_set(const char *boot_devices)
1164 {
1165 if (!boot_set_handler) {
1166 return -EINVAL;
1167 }
1168 return boot_set_handler(boot_set_opaque, boot_devices);
1169 }
1170
1171 static void validate_bootdevices(char *devices)
1172 {
1173 /* We just do some generic consistency checks */
1174 const char *p;
1175 int bitmap = 0;
1176
1177 for (p = devices; *p != '\0'; p++) {
1178 /* Allowed boot devices are:
1179 * a-b: floppy disk drives
1180 * c-f: IDE disk drives
1181 * g-m: machine implementation dependant drives
1182 * n-p: network devices
1183 * It's up to each machine implementation to check if the given boot
1184 * devices match the actual hardware implementation and firmware
1185 * features.
1186 */
1187 if (*p < 'a' || *p > 'p') {
1188 fprintf(stderr, "Invalid boot device '%c'\n", *p);
1189 exit(1);
1190 }
1191 if (bitmap & (1 << (*p - 'a'))) {
1192 fprintf(stderr, "Boot device '%c' was given twice\n", *p);
1193 exit(1);
1194 }
1195 bitmap |= 1 << (*p - 'a');
1196 }
1197 }
1198
1199 static void restore_boot_devices(void *opaque)
1200 {
1201 char *standard_boot_devices = opaque;
1202 static int first = 1;
1203
1204 /* Restore boot order and remove ourselves after the first boot */
1205 if (first) {
1206 first = 0;
1207 return;
1208 }
1209
1210 qemu_boot_set(standard_boot_devices);
1211
1212 qemu_unregister_reset(restore_boot_devices, standard_boot_devices);
1213 qemu_free(standard_boot_devices);
1214 }
1215
1216 static void numa_add(const char *optarg)
1217 {
1218 char option[128];
1219 char *endptr;
1220 unsigned long long value, endvalue;
1221 int nodenr;
1222
1223 optarg = get_opt_name(option, 128, optarg, ',') + 1;
1224 if (!strcmp(option, "node")) {
1225 if (get_param_value(option, 128, "nodeid", optarg) == 0) {
1226 nodenr = nb_numa_nodes;
1227 } else {
1228 nodenr = strtoull(option, NULL, 10);
1229 }
1230
1231 if (get_param_value(option, 128, "mem", optarg) == 0) {
1232 node_mem[nodenr] = 0;
1233 } else {
1234 value = strtoull(option, &endptr, 0);
1235 switch (*endptr) {
1236 case 0: case 'M': case 'm':
1237 value <<= 20;
1238 break;
1239 case 'G': case 'g':
1240 value <<= 30;
1241 break;
1242 }
1243 node_mem[nodenr] = value;
1244 }
1245 if (get_param_value(option, 128, "cpus", optarg) == 0) {
1246 node_cpumask[nodenr] = 0;
1247 } else {
1248 value = strtoull(option, &endptr, 10);
1249 if (value >= 64) {
1250 value = 63;
1251 fprintf(stderr, "only 64 CPUs in NUMA mode supported.\n");
1252 } else {
1253 if (*endptr == '-') {
1254 endvalue = strtoull(endptr+1, &endptr, 10);
1255 if (endvalue >= 63) {
1256 endvalue = 62;
1257 fprintf(stderr,
1258 "only 63 CPUs in NUMA mode supported.\n");
1259 }
1260 value = (2ULL << endvalue) - (1ULL << value);
1261 } else {
1262 value = 1ULL << value;
1263 }
1264 }
1265 node_cpumask[nodenr] = value;
1266 }
1267 nb_numa_nodes++;
1268 }
1269 return;
1270 }
1271
1272 static void smp_parse(const char *optarg)
1273 {
1274 int smp, sockets = 0, threads = 0, cores = 0;
1275 char *endptr;
1276 char option[128];
1277
1278 smp = strtoul(optarg, &endptr, 10);
1279 if (endptr != optarg) {
1280 if (*endptr == ',') {
1281 endptr++;
1282 }
1283 }
1284 if (get_param_value(option, 128, "sockets", endptr) != 0)
1285 sockets = strtoull(option, NULL, 10);
1286 if (get_param_value(option, 128, "cores", endptr) != 0)
1287 cores = strtoull(option, NULL, 10);
1288 if (get_param_value(option, 128, "threads", endptr) != 0)
1289 threads = strtoull(option, NULL, 10);
1290 if (get_param_value(option, 128, "maxcpus", endptr) != 0)
1291 max_cpus = strtoull(option, NULL, 10);
1292
1293 /* compute missing values, prefer sockets over cores over threads */
1294 if (smp == 0 || sockets == 0) {
1295 sockets = sockets > 0 ? sockets : 1;
1296 cores = cores > 0 ? cores : 1;
1297 threads = threads > 0 ? threads : 1;
1298 if (smp == 0) {
1299 smp = cores * threads * sockets;
1300 }
1301 } else {
1302 if (cores == 0) {
1303 threads = threads > 0 ? threads : 1;
1304 cores = smp / (sockets * threads);
1305 } else {
1306 if (sockets) {
1307 threads = smp / (cores * sockets);
1308 }
1309 }
1310 }
1311 smp_cpus = smp;
1312 smp_cores = cores > 0 ? cores : 1;
1313 smp_threads = threads > 0 ? threads : 1;
1314 if (max_cpus == 0)
1315 max_cpus = smp_cpus;
1316 }
1317
1318 /***********************************************************/
1319 /* USB devices */
1320
1321 static int usb_device_add(const char *devname, int is_hotplug)
1322 {
1323 const char *p;
1324 USBDevice *dev = NULL;
1325
1326 if (!usb_enabled)
1327 return -1;
1328
1329 /* drivers with .usbdevice_name entry in USBDeviceInfo */
1330 dev = usbdevice_create(devname);
1331 if (dev)
1332 goto done;
1333
1334 /* the other ones */
1335 if (strstart(devname, "host:", &p)) {
1336 dev = usb_host_device_open(p);
1337 } else if (!strcmp(devname, "bt") || strstart(devname, "bt:", &p)) {
1338 dev = usb_bt_init(devname[2] ? hci_init(p) :
1339 bt_new_hci(qemu_find_bt_vlan(0)));
1340 } else {
1341 return -1;
1342 }
1343 if (!dev)
1344 return -1;
1345
1346 done:
1347 return 0;
1348 }
1349
1350 static int usb_device_del(const char *devname)
1351 {
1352 int bus_num, addr;
1353 const char *p;
1354
1355 if (strstart(devname, "host:", &p))
1356 return usb_host_device_close(p);
1357
1358 if (!usb_enabled)
1359 return -1;
1360
1361 p = strchr(devname, '.');
1362 if (!p)
1363 return -1;
1364 bus_num = strtoul(devname, NULL, 0);
1365 addr = strtoul(p + 1, NULL, 0);
1366
1367 return usb_device_delete_addr(bus_num, addr);
1368 }
1369
1370 static int usb_parse(const char *cmdline)
1371 {
1372 int r;
1373 r = usb_device_add(cmdline, 0);
1374 if (r < 0) {
1375 fprintf(stderr, "qemu: could not add USB device '%s'\n", cmdline);
1376 }
1377 return r;
1378 }
1379
1380 void do_usb_add(Monitor *mon, const QDict *qdict)
1381 {
1382 const char *devname = qdict_get_str(qdict, "devname");
1383 if (usb_device_add(devname, 1) < 0) {
1384 error_report("could not add USB device '%s'", devname);
1385 }
1386 }
1387
1388 void do_usb_del(Monitor *mon, const QDict *qdict)
1389 {
1390 const char *devname = qdict_get_str(qdict, "devname");
1391 if (usb_device_del(devname) < 0) {
1392 error_report("could not delete USB device '%s'", devname);
1393 }
1394 }
1395
1396 /***********************************************************/
1397 /* PCMCIA/Cardbus */
1398
1399 static struct pcmcia_socket_entry_s {
1400 PCMCIASocket *socket;
1401 struct pcmcia_socket_entry_s *next;
1402 } *pcmcia_sockets = 0;
1403
1404 void pcmcia_socket_register(PCMCIASocket *socket)
1405 {
1406 struct pcmcia_socket_entry_s *entry;
1407
1408 entry = qemu_malloc(sizeof(struct pcmcia_socket_entry_s));
1409 entry->socket = socket;
1410 entry->next = pcmcia_sockets;
1411 pcmcia_sockets = entry;
1412 }
1413
1414 void pcmcia_socket_unregister(PCMCIASocket *socket)
1415 {
1416 struct pcmcia_socket_entry_s *entry, **ptr;
1417
1418 ptr = &pcmcia_sockets;
1419 for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
1420 if (entry->socket == socket) {
1421 *ptr = entry->next;
1422 qemu_free(entry);
1423 }
1424 }
1425
1426 void pcmcia_info(Monitor *mon)
1427 {
1428 struct pcmcia_socket_entry_s *iter;
1429
1430 if (!pcmcia_sockets)
1431 monitor_printf(mon, "No PCMCIA sockets\n");
1432
1433 for (iter = pcmcia_sockets; iter; iter = iter->next)
1434 monitor_printf(mon, "%s: %s\n", iter->socket->slot_string,
1435 iter->socket->attached ? iter->socket->card_string :
1436 "Empty");
1437 }
1438
1439 /***********************************************************/
1440 /* I/O handling */
1441
1442 typedef struct IOHandlerRecord {
1443 int fd;
1444 IOCanReadHandler *fd_read_poll;
1445 IOHandler *fd_read;
1446 IOHandler *fd_write;
1447 int deleted;
1448 void *opaque;
1449 /* temporary data */
1450 struct pollfd *ufd;
1451 QLIST_ENTRY(IOHandlerRecord) next;
1452 } IOHandlerRecord;
1453
1454 static QLIST_HEAD(, IOHandlerRecord) io_handlers =
1455 QLIST_HEAD_INITIALIZER(io_handlers);
1456
1457
1458 /* XXX: fd_read_poll should be suppressed, but an API change is
1459 necessary in the character devices to suppress fd_can_read(). */
1460 int qemu_set_fd_handler2(int fd,
1461 IOCanReadHandler *fd_read_poll,
1462 IOHandler *fd_read,
1463 IOHandler *fd_write,
1464 void *opaque)
1465 {
1466 IOHandlerRecord *ioh;
1467
1468 if (!fd_read && !fd_write) {
1469 QLIST_FOREACH(ioh, &io_handlers, next) {
1470 if (ioh->fd == fd) {
1471 ioh->deleted = 1;
1472 break;
1473 }
1474 }
1475 } else {
1476 QLIST_FOREACH(ioh, &io_handlers, next) {
1477 if (ioh->fd == fd)
1478 goto found;
1479 }
1480 ioh = qemu_mallocz(sizeof(IOHandlerRecord));
1481 QLIST_INSERT_HEAD(&io_handlers, ioh, next);
1482 found:
1483 ioh->fd = fd;
1484 ioh->fd_read_poll = fd_read_poll;
1485 ioh->fd_read = fd_read;
1486 ioh->fd_write = fd_write;
1487 ioh->opaque = opaque;
1488 ioh->deleted = 0;
1489 }
1490 return 0;
1491 }
1492
1493 int qemu_set_fd_handler(int fd,
1494 IOHandler *fd_read,
1495 IOHandler *fd_write,
1496 void *opaque)
1497 {
1498 return qemu_set_fd_handler2(fd, NULL, fd_read, fd_write, opaque);
1499 }
1500
1501 /***********************************************************/
1502 /* machine registration */
1503
1504 static QEMUMachine *first_machine = NULL;
1505 QEMUMachine *current_machine = NULL;
1506
1507 int qemu_register_machine(QEMUMachine *m)
1508 {
1509 QEMUMachine **pm;
1510 pm = &first_machine;
1511 while (*pm != NULL)
1512 pm = &(*pm)->next;
1513 m->next = NULL;
1514 *pm = m;
1515 return 0;
1516 }
1517
1518 static QEMUMachine *find_machine(const char *name)
1519 {
1520 QEMUMachine *m;
1521
1522 for(m = first_machine; m != NULL; m = m->next) {
1523 if (!strcmp(m->name, name))
1524 return m;
1525 if (m->alias && !strcmp(m->alias, name))
1526 return m;
1527 }
1528 return NULL;
1529 }
1530
1531 static QEMUMachine *find_default_machine(void)
1532 {
1533 QEMUMachine *m;
1534
1535 for(m = first_machine; m != NULL; m = m->next) {
1536 if (m->is_default) {
1537 return m;
1538 }
1539 }
1540 return NULL;
1541 }
1542
1543 /***********************************************************/
1544 /* main execution loop */
1545
1546 static void gui_update(void *opaque)
1547 {
1548 uint64_t interval = GUI_REFRESH_INTERVAL;
1549 DisplayState *ds = opaque;
1550 DisplayChangeListener *dcl = ds->listeners;
1551
1552 qemu_flush_coalesced_mmio_buffer();
1553 dpy_refresh(ds);
1554
1555 while (dcl != NULL) {
1556 if (dcl->gui_timer_interval &&
1557 dcl->gui_timer_interval < interval)
1558 interval = dcl->gui_timer_interval;
1559 dcl = dcl->next;
1560 }
1561 qemu_mod_timer(ds->gui_timer, interval + qemu_get_clock(rt_clock));
1562 }
1563
1564 static void nographic_update(void *opaque)
1565 {
1566 uint64_t interval = GUI_REFRESH_INTERVAL;
1567
1568 qemu_flush_coalesced_mmio_buffer();
1569 qemu_mod_timer(nographic_timer, interval + qemu_get_clock(rt_clock));
1570 }
1571
1572 struct vm_change_state_entry {
1573 VMChangeStateHandler *cb;
1574 void *opaque;
1575 QLIST_ENTRY (vm_change_state_entry) entries;
1576 };
1577
1578 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1579
1580 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1581 void *opaque)
1582 {
1583 VMChangeStateEntry *e;
1584
1585 e = qemu_mallocz(sizeof (*e));
1586
1587 e->cb = cb;
1588 e->opaque = opaque;
1589 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1590 return e;
1591 }
1592
1593 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1594 {
1595 QLIST_REMOVE (e, entries);
1596 qemu_free (e);
1597 }
1598
1599 void vm_state_notify(int running, int reason)
1600 {
1601 VMChangeStateEntry *e;
1602
1603 for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
1604 e->cb(e->opaque, running, reason);
1605 }
1606 }
1607
1608 void vm_start(void)
1609 {
1610 if (!vm_running) {
1611 cpu_enable_ticks();
1612 vm_running = 1;
1613 vm_state_notify(1, 0);
1614 resume_all_vcpus();
1615 monitor_protocol_event(QEVENT_RESUME, NULL);
1616 }
1617 }
1618
1619 /* reset/shutdown handler */
1620
1621 typedef struct QEMUResetEntry {
1622 QTAILQ_ENTRY(QEMUResetEntry) entry;
1623 QEMUResetHandler *func;
1624 void *opaque;
1625 } QEMUResetEntry;
1626
1627 static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
1628 QTAILQ_HEAD_INITIALIZER(reset_handlers);
1629 static int reset_requested;
1630 static int shutdown_requested;
1631 static int powerdown_requested;
1632 int debug_requested;
1633 int vmstop_requested;
1634
1635 int qemu_shutdown_requested(void)
1636 {
1637 int r = shutdown_requested;
1638 shutdown_requested = 0;
1639 return r;
1640 }
1641
1642 int qemu_reset_requested(void)
1643 {
1644 int r = reset_requested;
1645 reset_requested = 0;
1646 return r;
1647 }
1648
1649 int qemu_powerdown_requested(void)
1650 {
1651 int r = powerdown_requested;
1652 powerdown_requested = 0;
1653 return r;
1654 }
1655
1656 static int qemu_debug_requested(void)
1657 {
1658 int r = debug_requested;
1659 debug_requested = 0;
1660 return r;
1661 }
1662
1663 static int qemu_vmstop_requested(void)
1664 {
1665 int r = vmstop_requested;
1666 vmstop_requested = 0;
1667 return r;
1668 }
1669
1670 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
1671 {
1672 QEMUResetEntry *re = qemu_mallocz(sizeof(QEMUResetEntry));
1673
1674 re->func = func;
1675 re->opaque = opaque;
1676 QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
1677 }
1678
1679 void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
1680 {
1681 QEMUResetEntry *re;
1682
1683 QTAILQ_FOREACH(re, &reset_handlers, entry) {
1684 if (re->func == func && re->opaque == opaque) {
1685 QTAILQ_REMOVE(&reset_handlers, re, entry);
1686 qemu_free(re);
1687 return;
1688 }
1689 }
1690 }
1691
1692 void qemu_system_reset(void)
1693 {
1694 QEMUResetEntry *re, *nre;
1695
1696 /* reset all devices */
1697 QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
1698 re->func(re->opaque);
1699 }
1700 monitor_protocol_event(QEVENT_RESET, NULL);
1701 cpu_synchronize_all_post_reset();
1702 }
1703
1704 void qemu_system_reset_request(void)
1705 {
1706 if (no_reboot) {
1707 shutdown_requested = 1;
1708 } else {
1709 reset_requested = 1;
1710 }
1711 qemu_notify_event();
1712 }
1713
1714 void qemu_system_shutdown_request(void)
1715 {
1716 shutdown_requested = 1;
1717 qemu_notify_event();
1718 }
1719
1720 void qemu_system_powerdown_request(void)
1721 {
1722 powerdown_requested = 1;
1723 qemu_notify_event();
1724 }
1725
1726 void main_loop_wait(int nonblocking)
1727 {
1728 IOHandlerRecord *ioh;
1729 fd_set rfds, wfds, xfds;
1730 int ret, nfds;
1731 struct timeval tv;
1732 int timeout;
1733
1734 if (nonblocking)
1735 timeout = 0;
1736 else {
1737 timeout = qemu_calculate_timeout();
1738 qemu_bh_update_timeout(&timeout);
1739 }
1740
1741 os_host_main_loop_wait(&timeout);
1742
1743 /* poll any events */
1744 /* XXX: separate device handlers from system ones */
1745 nfds = -1;
1746 FD_ZERO(&rfds);
1747 FD_ZERO(&wfds);
1748 FD_ZERO(&xfds);
1749 QLIST_FOREACH(ioh, &io_handlers, next) {
1750 if (ioh->deleted)
1751 continue;
1752 if (ioh->fd_read &&
1753 (!ioh->fd_read_poll ||
1754 ioh->fd_read_poll(ioh->opaque) != 0)) {
1755 FD_SET(ioh->fd, &rfds);
1756 if (ioh->fd > nfds)
1757 nfds = ioh->fd;
1758 }
1759 if (ioh->fd_write) {
1760 FD_SET(ioh->fd, &wfds);
1761 if (ioh->fd > nfds)
1762 nfds = ioh->fd;
1763 }
1764 }
1765
1766 tv.tv_sec = timeout / 1000;
1767 tv.tv_usec = (timeout % 1000) * 1000;
1768
1769 slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
1770
1771 qemu_mutex_unlock_iothread();
1772 ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
1773 qemu_mutex_lock_iothread();
1774 if (ret > 0) {
1775 IOHandlerRecord *pioh;
1776
1777 QLIST_FOREACH_SAFE(ioh, &io_handlers, next, pioh) {
1778 if (ioh->deleted) {
1779 QLIST_REMOVE(ioh, next);
1780 qemu_free(ioh);
1781 continue;
1782 }
1783 if (ioh->fd_read && FD_ISSET(ioh->fd, &rfds)) {
1784 ioh->fd_read(ioh->opaque);
1785 }
1786 if (ioh->fd_write && FD_ISSET(ioh->fd, &wfds)) {
1787 ioh->fd_write(ioh->opaque);
1788 }
1789 }
1790 }
1791
1792 slirp_select_poll(&rfds, &wfds, &xfds, (ret < 0));
1793
1794 qemu_run_all_timers();
1795
1796 /* Check bottom-halves last in case any of the earlier events triggered
1797 them. */
1798 qemu_bh_poll();
1799
1800 }
1801
1802 static int vm_can_run(void)
1803 {
1804 if (powerdown_requested)
1805 return 0;
1806 if (reset_requested)
1807 return 0;
1808 if (shutdown_requested)
1809 return 0;
1810 if (debug_requested)
1811 return 0;
1812 return 1;
1813 }
1814
1815 qemu_irq qemu_system_powerdown;
1816
1817 static void main_loop(void)
1818 {
1819 int r;
1820
1821 qemu_main_loop_start();
1822
1823 for (;;) {
1824 do {
1825 bool nonblocking = false;
1826 #ifdef CONFIG_PROFILER
1827 int64_t ti;
1828 #endif
1829 #ifndef CONFIG_IOTHREAD
1830 nonblocking = tcg_cpu_exec();
1831 #endif
1832 #ifdef CONFIG_PROFILER
1833 ti = profile_getclock();
1834 #endif
1835 main_loop_wait(nonblocking);
1836 #ifdef CONFIG_PROFILER
1837 dev_time += profile_getclock() - ti;
1838 #endif
1839 } while (vm_can_run());
1840
1841 if ((r = qemu_debug_requested())) {
1842 vm_stop(r);
1843 }
1844 if (qemu_shutdown_requested()) {
1845 monitor_protocol_event(QEVENT_SHUTDOWN, NULL);
1846 if (no_shutdown) {
1847 vm_stop(0);
1848 no_shutdown = 0;
1849 } else
1850 break;
1851 }
1852 if (qemu_reset_requested()) {
1853 pause_all_vcpus();
1854 qemu_system_reset();
1855 resume_all_vcpus();
1856 }
1857 if (qemu_powerdown_requested()) {
1858 monitor_protocol_event(QEVENT_POWERDOWN, NULL);
1859 qemu_irq_raise(qemu_system_powerdown);
1860 }
1861 if ((r = qemu_vmstop_requested())) {
1862 vm_stop(r);
1863 }
1864 }
1865 pause_all_vcpus();
1866 }
1867
1868 static void version(void)
1869 {
1870 printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
1871 }
1872
1873 static void help(int exitcode)
1874 {
1875 const char *options_help =
1876 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
1877 opt_help
1878 #define DEFHEADING(text) stringify(text) "\n"
1879 #include "qemu-options.def"
1880 #undef DEF
1881 #undef DEFHEADING
1882 #undef GEN_DOCS
1883 ;
1884 version();
1885 printf("usage: %s [options] [disk_image]\n"
1886 "\n"
1887 "'disk_image' is a raw hard disk image for IDE hard disk 0\n"
1888 "\n"
1889 "%s\n"
1890 "During emulation, the following keys are useful:\n"
1891 "ctrl-alt-f toggle full screen\n"
1892 "ctrl-alt-n switch to virtual console 'n'\n"
1893 "ctrl-alt toggle mouse and keyboard grab\n"
1894 "\n"
1895 "When using -nographic, press 'ctrl-a h' to get some help.\n",
1896 "qemu",
1897 options_help);
1898 exit(exitcode);
1899 }
1900
1901 #define HAS_ARG 0x0001
1902
1903 typedef struct QEMUOption {
1904 const char *name;
1905 int flags;
1906 int index;
1907 uint32_t arch_mask;
1908 } QEMUOption;
1909
1910 static const QEMUOption qemu_options[] = {
1911 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1912 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
1913 { option, opt_arg, opt_enum, arch_mask },
1914 #define DEFHEADING(text)
1915 #include "qemu-options.def"
1916 #undef DEF
1917 #undef DEFHEADING
1918 #undef GEN_DOCS
1919 { NULL },
1920 };
1921 static void select_vgahw (const char *p)
1922 {
1923 const char *opts;
1924
1925 default_vga = 0;
1926 vga_interface_type = VGA_NONE;
1927 if (strstart(p, "std", &opts)) {
1928 vga_interface_type = VGA_STD;
1929 } else if (strstart(p, "cirrus", &opts)) {
1930 vga_interface_type = VGA_CIRRUS;
1931 } else if (strstart(p, "vmware", &opts)) {
1932 vga_interface_type = VGA_VMWARE;
1933 } else if (strstart(p, "xenfb", &opts)) {
1934 vga_interface_type = VGA_XENFB;
1935 } else if (!strstart(p, "none", &opts)) {
1936 invalid_vga:
1937 fprintf(stderr, "Unknown vga type: %s\n", p);
1938 exit(1);
1939 }
1940 while (*opts) {
1941 const char *nextopt;
1942
1943 if (strstart(opts, ",retrace=", &nextopt)) {
1944 opts = nextopt;
1945 if (strstart(opts, "dumb", &nextopt))
1946 vga_retrace_method = VGA_RETRACE_DUMB;
1947 else if (strstart(opts, "precise", &nextopt))
1948 vga_retrace_method = VGA_RETRACE_PRECISE;
1949 else goto invalid_vga;
1950 } else goto invalid_vga;
1951 opts = nextopt;
1952 }
1953 }
1954
1955 static int balloon_parse(const char *arg)
1956 {
1957 QemuOpts *opts;
1958
1959 if (strcmp(arg, "none") == 0) {
1960 return 0;
1961 }
1962
1963 if (!strncmp(arg, "virtio", 6)) {
1964 if (arg[6] == ',') {
1965 /* have params -> parse them */
1966 opts = qemu_opts_parse(&qemu_device_opts, arg+7, 0);
1967 if (!opts)
1968 return -1;
1969 } else {
1970 /* create empty opts */
1971 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
1972 }
1973 qemu_opt_set(opts, "driver", "virtio-balloon-pci");
1974 return 0;
1975 }
1976
1977 return -1;
1978 }
1979
1980 char *qemu_find_file(int type, const char *name)
1981 {
1982 int len;
1983 const char *subdir;
1984 char *buf;
1985
1986 /* If name contains path separators then try it as a straight path. */
1987 if ((strchr(name, '/') || strchr(name, '\\'))
1988 && access(name, R_OK) == 0) {
1989 return qemu_strdup(name);
1990 }
1991 switch (type) {
1992 case QEMU_FILE_TYPE_BIOS:
1993 subdir = "";
1994 break;
1995 case QEMU_FILE_TYPE_KEYMAP:
1996 subdir = "keymaps/";
1997 break;
1998 default:
1999 abort();
2000 }
2001 len = strlen(data_dir) + strlen(name) + strlen(subdir) + 2;
2002 buf = qemu_mallocz(len);
2003 snprintf(buf, len, "%s/%s%s", data_dir, subdir, name);
2004 if (access(buf, R_OK)) {
2005 qemu_free(buf);
2006 return NULL;
2007 }
2008 return buf;
2009 }
2010
2011 static int device_help_func(QemuOpts *opts, void *opaque)
2012 {
2013 return qdev_device_help(opts);
2014 }
2015
2016 static int device_init_func(QemuOpts *opts, void *opaque)
2017 {
2018 DeviceState *dev;
2019
2020 dev = qdev_device_add(opts);
2021 if (!dev)
2022 return -1;
2023 return 0;
2024 }
2025
2026 static int chardev_init_func(QemuOpts *opts, void *opaque)
2027 {
2028 CharDriverState *chr;
2029
2030 chr = qemu_chr_open_opts(opts, NULL);
2031 if (!chr)
2032 return -1;
2033 return 0;
2034 }
2035
2036 #ifdef CONFIG_LINUX
2037 static int fsdev_init_func(QemuOpts *opts, void *opaque)
2038 {
2039 int ret;
2040 ret = qemu_fsdev_add(opts);
2041
2042 return ret;
2043 }
2044 #endif
2045
2046 static int mon_init_func(QemuOpts *opts, void *opaque)
2047 {
2048 CharDriverState *chr;
2049 const char *chardev;
2050 const char *mode;
2051 int flags;
2052
2053 mode = qemu_opt_get(opts, "mode");
2054 if (mode == NULL) {
2055 mode = "readline";
2056 }
2057 if (strcmp(mode, "readline") == 0) {
2058 flags = MONITOR_USE_READLINE;
2059 } else if (strcmp(mode, "control") == 0) {
2060 flags = MONITOR_USE_CONTROL;
2061 } else {
2062 fprintf(stderr, "unknown monitor mode \"%s\"\n", mode);
2063 exit(1);
2064 }
2065
2066 if (qemu_opt_get_bool(opts, "default", 0))
2067 flags |= MONITOR_IS_DEFAULT;
2068
2069 chardev = qemu_opt_get(opts, "chardev");
2070 chr = qemu_chr_find(chardev);
2071 if (chr == NULL) {
2072 fprintf(stderr, "chardev \"%s\" not found\n", chardev);
2073 exit(1);
2074 }
2075
2076 monitor_init(chr, flags);
2077 return 0;
2078 }
2079
2080 static void monitor_parse(const char *optarg, const char *mode)
2081 {
2082 static int monitor_device_index = 0;
2083 QemuOpts *opts;
2084 const char *p;
2085 char label[32];
2086 int def = 0;
2087
2088 if (strstart(optarg, "chardev:", &p)) {
2089 snprintf(label, sizeof(label), "%s", p);
2090 } else {
2091 snprintf(label, sizeof(label), "compat_monitor%d",
2092 monitor_device_index);
2093 if (monitor_device_index == 0) {
2094 def = 1;
2095 }
2096 opts = qemu_chr_parse_compat(label, optarg);
2097 if (!opts) {
2098 fprintf(stderr, "parse error: %s\n", optarg);
2099 exit(1);
2100 }
2101 }
2102
2103 opts = qemu_opts_create(&qemu_mon_opts, label, 1);
2104 if (!opts) {
2105 fprintf(stderr, "duplicate chardev: %s\n", label);
2106 exit(1);
2107 }
2108 qemu_opt_set(opts, "mode", mode);
2109 qemu_opt_set(opts, "chardev", label);
2110 if (def)
2111 qemu_opt_set(opts, "default", "on");
2112 monitor_device_index++;
2113 }
2114
2115 struct device_config {
2116 enum {
2117 DEV_USB, /* -usbdevice */
2118 DEV_BT, /* -bt */
2119 DEV_SERIAL, /* -serial */
2120 DEV_PARALLEL, /* -parallel */
2121 DEV_VIRTCON, /* -virtioconsole */
2122 DEV_DEBUGCON, /* -debugcon */
2123 } type;
2124 const char *cmdline;
2125 QTAILQ_ENTRY(device_config) next;
2126 };
2127 QTAILQ_HEAD(, device_config) device_configs = QTAILQ_HEAD_INITIALIZER(device_configs);
2128
2129 static void add_device_config(int type, const char *cmdline)
2130 {
2131 struct device_config *conf;
2132
2133 conf = qemu_mallocz(sizeof(*conf));
2134 conf->type = type;
2135 conf->cmdline = cmdline;
2136 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2137 }
2138
2139 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2140 {
2141 struct device_config *conf;
2142 int rc;
2143
2144 QTAILQ_FOREACH(conf, &device_configs, next) {
2145 if (conf->type != type)
2146 continue;
2147 rc = func(conf->cmdline);
2148 if (0 != rc)
2149 return rc;
2150 }
2151 return 0;
2152 }
2153
2154 static int serial_parse(const char *devname)
2155 {
2156 static int index = 0;
2157 char label[32];
2158
2159 if (strcmp(devname, "none") == 0)
2160 return 0;
2161 if (index == MAX_SERIAL_PORTS) {
2162 fprintf(stderr, "qemu: too many serial ports\n");
2163 exit(1);
2164 }
2165 snprintf(label, sizeof(label), "serial%d", index);
2166 serial_hds[index] = qemu_chr_open(label, devname, NULL);
2167 if (!serial_hds[index]) {
2168 fprintf(stderr, "qemu: could not open serial device '%s': %s\n",
2169 devname, strerror(errno));
2170 return -1;
2171 }
2172 index++;
2173 return 0;
2174 }
2175
2176 static int parallel_parse(const char *devname)
2177 {
2178 static int index = 0;
2179 char label[32];
2180
2181 if (strcmp(devname, "none") == 0)
2182 return 0;
2183 if (index == MAX_PARALLEL_PORTS) {
2184 fprintf(stderr, "qemu: too many parallel ports\n");
2185 exit(1);
2186 }
2187 snprintf(label, sizeof(label), "parallel%d", index);
2188 parallel_hds[index] = qemu_chr_open(label, devname, NULL);
2189 if (!parallel_hds[index]) {
2190 fprintf(stderr, "qemu: could not open parallel device '%s': %s\n",
2191 devname, strerror(errno));
2192 return -1;
2193 }
2194 index++;
2195 return 0;
2196 }
2197
2198 static int virtcon_parse(const char *devname)
2199 {
2200 static int index = 0;
2201 char label[32];
2202 QemuOpts *bus_opts, *dev_opts;
2203
2204 if (strcmp(devname, "none") == 0)
2205 return 0;
2206 if (index == MAX_VIRTIO_CONSOLES) {
2207 fprintf(stderr, "qemu: too many virtio consoles\n");
2208 exit(1);
2209 }
2210
2211 bus_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2212 qemu_opt_set(bus_opts, "driver", "virtio-serial");
2213
2214 dev_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2215 qemu_opt_set(dev_opts, "driver", "virtconsole");
2216
2217 snprintf(label, sizeof(label), "virtcon%d", index);
2218 virtcon_hds[index] = qemu_chr_open(label, devname, NULL);
2219 if (!virtcon_hds[index]) {
2220 fprintf(stderr, "qemu: could not open virtio console '%s': %s\n",
2221 devname, strerror(errno));
2222 return -1;
2223 }
2224 qemu_opt_set(dev_opts, "chardev", label);
2225
2226 index++;
2227 return 0;
2228 }
2229
2230 static int debugcon_parse(const char *devname)
2231 {
2232 QemuOpts *opts;
2233
2234 if (!qemu_chr_open("debugcon", devname, NULL)) {
2235 exit(1);
2236 }
2237 opts = qemu_opts_create(&qemu_device_opts, "debugcon", 1);
2238 if (!opts) {
2239 fprintf(stderr, "qemu: already have a debugcon device\n");
2240 exit(1);
2241 }
2242 qemu_opt_set(opts, "driver", "isa-debugcon");
2243 qemu_opt_set(opts, "chardev", "debugcon");
2244 return 0;
2245 }
2246
2247 static const QEMUOption *lookup_opt(int argc, char **argv,
2248 const char **poptarg, int *poptind)
2249 {
2250 const QEMUOption *popt;
2251 int optind = *poptind;
2252 char *r = argv[optind];
2253 const char *optarg;
2254
2255 loc_set_cmdline(argv, optind, 1);
2256 optind++;
2257 /* Treat --foo the same as -foo. */
2258 if (r[1] == '-')
2259 r++;
2260 popt = qemu_options;
2261 for(;;) {
2262 if (!popt->name) {
2263 error_report("invalid option");
2264 exit(1);
2265 }
2266 if (!strcmp(popt->name, r + 1))
2267 break;
2268 popt++;
2269 }
2270 if (popt->flags & HAS_ARG) {
2271 if (optind >= argc) {
2272 error_report("requires an argument");
2273 exit(1);
2274 }
2275 optarg = argv[optind++];
2276 loc_set_cmdline(argv, optind - 2, 2);
2277 } else {
2278 optarg = NULL;
2279 }
2280
2281 *poptarg = optarg;
2282 *poptind = optind;
2283
2284 return popt;
2285 }
2286
2287 int main(int argc, char **argv, char **envp)
2288 {
2289 const char *gdbstub_dev = NULL;
2290 int i;
2291 int snapshot, linux_boot;
2292 const char *icount_option = NULL;
2293 const char *initrd_filename;
2294 const char *kernel_filename, *kernel_cmdline;
2295 char boot_devices[33] = "cad"; /* default to HD->floppy->CD-ROM */
2296 DisplayState *ds;
2297 DisplayChangeListener *dcl;
2298 int cyls, heads, secs, translation;
2299 QemuOpts *hda_opts = NULL, *opts;
2300 int optind;
2301 const char *optarg;
2302 const char *loadvm = NULL;
2303 QEMUMachine *machine;
2304 const char *cpu_model;
2305 #ifndef _WIN32
2306 int fds[2];
2307 #endif
2308 int tb_size;
2309 const char *pid_file = NULL;
2310 const char *incoming = NULL;
2311 #ifndef _WIN32
2312 int fd = 0;
2313 struct passwd *pwd = NULL;
2314 const char *chroot_dir = NULL;
2315 const char *run_as = NULL;
2316 #endif
2317 int show_vnc_port = 0;
2318 int defconfig = 1;
2319
2320 error_set_progname(argv[0]);
2321
2322 init_clocks();
2323
2324 qemu_cache_utils_init(envp);
2325
2326 QLIST_INIT (&vm_change_state_head);
2327 os_setup_early_signal_handling();
2328
2329 module_call_init(MODULE_INIT_MACHINE);
2330 machine = find_default_machine();
2331 cpu_model = NULL;
2332 initrd_filename = NULL;
2333 ram_size = 0;
2334 snapshot = 0;
2335 kernel_filename = NULL;
2336 kernel_cmdline = "";
2337 cyls = heads = secs = 0;
2338 translation = BIOS_ATA_TRANSLATION_AUTO;
2339
2340 for (i = 0; i < MAX_NODES; i++) {
2341 node_mem[i] = 0;
2342 node_cpumask[i] = 0;
2343 }
2344
2345 nb_numa_nodes = 0;
2346 nb_nics = 0;
2347
2348 tb_size = 0;
2349 autostart= 1;
2350
2351 /* first pass of option parsing */
2352 optind = 1;
2353 while (optind < argc) {
2354 if (argv[optind][0] != '-') {
2355 /* disk image */
2356 optind++;
2357 continue;
2358 } else {
2359 const QEMUOption *popt;
2360
2361 popt = lookup_opt(argc, argv, &optarg, &optind);
2362 switch (popt->index) {
2363 case QEMU_OPTION_nodefconfig:
2364 defconfig=0;
2365 break;
2366 }
2367 }
2368 }
2369
2370 if (defconfig) {
2371 int ret;
2372
2373 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2374 if (ret < 0 && ret != -ENOENT) {
2375 exit(1);
2376 }
2377
2378 ret = qemu_read_config_file(arch_config_name);
2379 if (ret < 0 && ret != -ENOENT) {
2380 exit(1);
2381 }
2382 }
2383 cpudef_init();
2384
2385 /* second pass of option parsing */
2386 optind = 1;
2387 for(;;) {
2388 if (optind >= argc)
2389 break;
2390 if (argv[optind][0] != '-') {
2391 hda_opts = drive_add(argv[optind++], HD_ALIAS, 0);
2392 } else {
2393 const QEMUOption *popt;
2394
2395 popt = lookup_opt(argc, argv, &optarg, &optind);
2396 if (!(popt->arch_mask & arch_type)) {
2397 printf("Option %s not supported for this target\n", popt->name);
2398 exit(1);
2399 }
2400 switch(popt->index) {
2401 case QEMU_OPTION_M:
2402 machine = find_machine(optarg);
2403 if (!machine) {
2404 QEMUMachine *m;
2405 printf("Supported machines are:\n");
2406 for(m = first_machine; m != NULL; m = m->next) {
2407 if (m->alias)
2408 printf("%-10s %s (alias of %s)\n",
2409 m->alias, m->desc, m->name);
2410 printf("%-10s %s%s\n",
2411 m->name, m->desc,
2412 m->is_default ? " (default)" : "");
2413 }
2414 exit(*optarg != '?');
2415 }
2416 break;
2417 case QEMU_OPTION_cpu:
2418 /* hw initialization will check this */
2419 if (*optarg == '?') {
2420 list_cpus(stdout, &fprintf, optarg);
2421 exit(0);
2422 } else {
2423 cpu_model = optarg;
2424 }
2425 break;
2426 case QEMU_OPTION_initrd:
2427 initrd_filename = optarg;
2428 break;
2429 case QEMU_OPTION_hda:
2430 if (cyls == 0)
2431 hda_opts = drive_add(optarg, HD_ALIAS, 0);
2432 else
2433 hda_opts = drive_add(optarg, HD_ALIAS
2434 ",cyls=%d,heads=%d,secs=%d%s",
2435 0, cyls, heads, secs,
2436 translation == BIOS_ATA_TRANSLATION_LBA ?
2437 ",trans=lba" :
2438 translation == BIOS_ATA_TRANSLATION_NONE ?
2439 ",trans=none" : "");
2440 break;
2441 case QEMU_OPTION_hdb:
2442 case QEMU_OPTION_hdc:
2443 case QEMU_OPTION_hdd:
2444 drive_add(optarg, HD_ALIAS, popt->index - QEMU_OPTION_hda);
2445 break;
2446 case QEMU_OPTION_drive:
2447 drive_add(NULL, "%s", optarg);
2448 break;
2449 case QEMU_OPTION_set:
2450 if (qemu_set_option(optarg) != 0)
2451 exit(1);
2452 break;
2453 case QEMU_OPTION_global:
2454 if (qemu_global_option(optarg) != 0)
2455 exit(1);
2456 break;
2457 case QEMU_OPTION_mtdblock:
2458 drive_add(optarg, MTD_ALIAS);
2459 break;
2460 case QEMU_OPTION_sd:
2461 drive_add(optarg, SD_ALIAS);
2462 break;
2463 case QEMU_OPTION_pflash:
2464 drive_add(optarg, PFLASH_ALIAS);
2465 break;
2466 case QEMU_OPTION_snapshot:
2467 snapshot = 1;
2468 break;
2469 case QEMU_OPTION_hdachs:
2470 {
2471 const char *p;
2472 p = optarg;
2473 cyls = strtol(p, (char **)&p, 0);
2474 if (cyls < 1 || cyls > 16383)
2475 goto chs_fail;
2476 if (*p != ',')
2477 goto chs_fail;
2478 p++;
2479 heads = strtol(p, (char **)&p, 0);
2480 if (heads < 1 || heads > 16)
2481 goto chs_fail;
2482 if (*p != ',')
2483 goto chs_fail;
2484 p++;
2485 secs = strtol(p, (char **)&p, 0);
2486 if (secs < 1 || secs > 63)
2487 goto chs_fail;
2488 if (*p == ',') {
2489 p++;
2490 if (!strcmp(p, "none"))
2491 translation = BIOS_ATA_TRANSLATION_NONE;
2492 else if (!strcmp(p, "lba"))
2493 translation = BIOS_ATA_TRANSLATION_LBA;
2494 else if (!strcmp(p, "auto"))
2495 translation = BIOS_ATA_TRANSLATION_AUTO;
2496 else
2497 goto chs_fail;
2498 } else if (*p != '\0') {
2499 chs_fail:
2500 fprintf(stderr, "qemu: invalid physical CHS format\n");
2501 exit(1);
2502 }
2503 if (hda_opts != NULL) {
2504 char num[16];
2505 snprintf(num, sizeof(num), "%d", cyls);
2506 qemu_opt_set(hda_opts, "cyls", num);
2507 snprintf(num, sizeof(num), "%d", heads);
2508 qemu_opt_set(hda_opts, "heads", num);
2509 snprintf(num, sizeof(num), "%d", secs);
2510 qemu_opt_set(hda_opts, "secs", num);
2511 if (translation == BIOS_ATA_TRANSLATION_LBA)
2512 qemu_opt_set(hda_opts, "trans", "lba");
2513 if (translation == BIOS_ATA_TRANSLATION_NONE)
2514 qemu_opt_set(hda_opts, "trans", "none");
2515 }
2516 }
2517 break;
2518 case QEMU_OPTION_numa:
2519 if (nb_numa_nodes >= MAX_NODES) {
2520 fprintf(stderr, "qemu: too many NUMA nodes\n");
2521 exit(1);
2522 }
2523 numa_add(optarg);
2524 break;
2525 case QEMU_OPTION_nographic:
2526 display_type = DT_NOGRAPHIC;
2527 break;
2528 #ifdef CONFIG_CURSES
2529 case QEMU_OPTION_curses:
2530 display_type = DT_CURSES;
2531 break;
2532 #endif
2533 case QEMU_OPTION_portrait:
2534 graphic_rotate = 1;
2535 break;
2536 case QEMU_OPTION_kernel:
2537 kernel_filename = optarg;
2538 break;
2539 case QEMU_OPTION_append:
2540 kernel_cmdline = optarg;
2541 break;
2542 case QEMU_OPTION_cdrom:
2543 drive_add(optarg, CDROM_ALIAS);
2544 break;
2545 case QEMU_OPTION_boot:
2546 {
2547 static const char * const params[] = {
2548 "order", "once", "menu", NULL
2549 };
2550 char buf[sizeof(boot_devices)];
2551 char *standard_boot_devices;
2552 int legacy = 0;
2553
2554 if (!strchr(optarg, '=')) {
2555 legacy = 1;
2556 pstrcpy(buf, sizeof(buf), optarg);
2557 } else if (check_params(buf, sizeof(buf), params, optarg) < 0) {
2558 fprintf(stderr,
2559 "qemu: unknown boot parameter '%s' in '%s'\n",
2560 buf, optarg);
2561 exit(1);
2562 }
2563
2564 if (legacy ||
2565 get_param_value(buf, sizeof(buf), "order", optarg)) {
2566 validate_bootdevices(buf);
2567 pstrcpy(boot_devices, sizeof(boot_devices), buf);
2568 }
2569 if (!legacy) {
2570 if (get_param_value(buf, sizeof(buf),
2571 "once", optarg)) {
2572 validate_bootdevices(buf);
2573 standard_boot_devices = qemu_strdup(boot_devices);
2574 pstrcpy(boot_devices, sizeof(boot_devices), buf);
2575 qemu_register_reset(restore_boot_devices,
2576 standard_boot_devices);
2577 }
2578 if (get_param_value(buf, sizeof(buf),
2579 "menu", optarg)) {
2580 if (!strcmp(buf, "on")) {
2581 boot_menu = 1;
2582 } else if (!strcmp(buf, "off")) {
2583 boot_menu = 0;
2584 } else {
2585 fprintf(stderr,
2586 "qemu: invalid option value '%s'\n",
2587 buf);
2588 exit(1);
2589 }
2590 }
2591 }
2592 }
2593 break;
2594 case QEMU_OPTION_fda:
2595 case QEMU_OPTION_fdb:
2596 drive_add(optarg, FD_ALIAS, popt->index - QEMU_OPTION_fda);
2597 break;
2598 case QEMU_OPTION_no_fd_bootchk:
2599 fd_bootchk = 0;
2600 break;
2601 case QEMU_OPTION_netdev:
2602 if (net_client_parse(&qemu_netdev_opts, optarg) == -1) {
2603 exit(1);
2604 }
2605 break;
2606 case QEMU_OPTION_net:
2607 if (net_client_parse(&qemu_net_opts, optarg) == -1) {
2608 exit(1);
2609 }
2610 break;
2611 #ifdef CONFIG_SLIRP
2612 case QEMU_OPTION_tftp:
2613 legacy_tftp_prefix = optarg;
2614 break;
2615 case QEMU_OPTION_bootp:
2616 legacy_bootp_filename = optarg;
2617 break;
2618 case QEMU_OPTION_redir:
2619 if (net_slirp_redir(optarg) < 0)
2620 exit(1);
2621 break;
2622 #endif
2623 case QEMU_OPTION_bt:
2624 add_device_config(DEV_BT, optarg);
2625 break;
2626 case QEMU_OPTION_audio_help:
2627 if (!(audio_available())) {
2628 printf("Option %s not supported for this target\n", popt->name);
2629 exit(1);
2630 }
2631 AUD_help ();
2632 exit (0);
2633 break;
2634 case QEMU_OPTION_soundhw:
2635 if (!(audio_available())) {
2636 printf("Option %s not supported for this target\n", popt->name);
2637 exit(1);
2638 }
2639 select_soundhw (optarg);
2640 break;
2641 case QEMU_OPTION_h:
2642 help(0);
2643 break;
2644 case QEMU_OPTION_version:
2645 version();
2646 exit(0);
2647 break;
2648 case QEMU_OPTION_m: {
2649 uint64_t value;
2650 char *ptr;
2651
2652 value = strtoul(optarg, &ptr, 10);
2653 switch (*ptr) {
2654 case 0: case 'M': case 'm':
2655 value <<= 20;
2656 break;
2657 case 'G': case 'g':
2658 value <<= 30;
2659 break;
2660 default:
2661 fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
2662 exit(1);
2663 }
2664
2665 /* On 32-bit hosts, QEMU is limited by virtual address space */
2666 if (value > (2047 << 20) && HOST_LONG_BITS == 32) {
2667 fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
2668 exit(1);
2669 }
2670 if (value != (uint64_t)(ram_addr_t)value) {
2671 fprintf(stderr, "qemu: ram size too large\n");
2672 exit(1);
2673 }
2674 ram_size = value;
2675 break;
2676 }
2677 case QEMU_OPTION_mempath:
2678 mem_path = optarg;
2679 break;
2680 #ifdef MAP_POPULATE
2681 case QEMU_OPTION_mem_prealloc:
2682 mem_prealloc = 1;
2683 break;
2684 #endif
2685 case QEMU_OPTION_d:
2686 set_cpu_log(optarg);
2687 break;
2688 case QEMU_OPTION_s:
2689 gdbstub_dev = "tcp::" DEFAULT_GDBSTUB_PORT;
2690 break;
2691 case QEMU_OPTION_gdb:
2692 gdbstub_dev = optarg;
2693 break;
2694 case QEMU_OPTION_L:
2695 data_dir = optarg;
2696 break;
2697 case QEMU_OPTION_bios:
2698 bios_name = optarg;
2699 break;
2700 case QEMU_OPTION_singlestep:
2701 singlestep = 1;
2702 break;
2703 case QEMU_OPTION_S:
2704 autostart = 0;
2705 break;
2706 case QEMU_OPTION_k:
2707 keyboard_layout = optarg;
2708 break;
2709 case QEMU_OPTION_localtime:
2710 rtc_utc = 0;
2711 break;
2712 case QEMU_OPTION_vga:
2713 select_vgahw (optarg);
2714 break;
2715 case QEMU_OPTION_g:
2716 {
2717 const char *p;
2718 int w, h, depth;
2719 p = optarg;
2720 w = strtol(p, (char **)&p, 10);
2721 if (w <= 0) {
2722 graphic_error:
2723 fprintf(stderr, "qemu: invalid resolution or depth\n");
2724 exit(1);
2725 }
2726 if (*p != 'x')
2727 goto graphic_error;
2728 p++;
2729 h = strtol(p, (char **)&p, 10);
2730 if (h <= 0)
2731 goto graphic_error;
2732 if (*p == 'x') {
2733 p++;
2734 depth = strtol(p, (char **)&p, 10);
2735 if (depth != 8 && depth != 15 && depth != 16 &&
2736 depth != 24 && depth != 32)
2737 goto graphic_error;
2738 } else if (*p == '\0') {
2739 depth = graphic_depth;
2740 } else {
2741 goto graphic_error;
2742 }
2743
2744 graphic_width = w;
2745 graphic_height = h;
2746 graphic_depth = depth;
2747 }
2748 break;
2749 case QEMU_OPTION_echr:
2750 {
2751 char *r;
2752 term_escape_char = strtol(optarg, &r, 0);
2753 if (r == optarg)
2754 printf("Bad argument to echr\n");
2755 break;
2756 }
2757 case QEMU_OPTION_monitor:
2758 monitor_parse(optarg, "readline");
2759 default_monitor = 0;
2760 break;
2761 case QEMU_OPTION_qmp:
2762 monitor_parse(optarg, "control");
2763 default_monitor = 0;
2764 break;
2765 case QEMU_OPTION_mon:
2766 opts = qemu_opts_parse(&qemu_mon_opts, optarg, 1);
2767 if (!opts) {
2768 exit(1);
2769 }
2770 default_monitor = 0;
2771 break;
2772 case QEMU_OPTION_chardev:
2773 opts = qemu_opts_parse(&qemu_chardev_opts, optarg, 1);
2774 if (!opts) {
2775 exit(1);
2776 }
2777 break;
2778 #ifdef CONFIG_LINUX
2779 case QEMU_OPTION_fsdev:
2780 opts = qemu_opts_parse(&qemu_fsdev_opts, optarg, 1);
2781 if (!opts) {
2782 fprintf(stderr, "parse error: %s\n", optarg);
2783 exit(1);
2784 }
2785 break;
2786 case QEMU_OPTION_virtfs: {
2787 char *arg_fsdev = NULL;
2788 char *arg_9p = NULL;
2789 int len = 0;
2790
2791 opts = qemu_opts_parse(&qemu_virtfs_opts, optarg, 1);
2792 if (!opts) {
2793 fprintf(stderr, "parse error: %s\n", optarg);
2794 exit(1);
2795 }
2796
2797 len = strlen(",id=,path=");
2798 len += strlen(qemu_opt_get(opts, "fstype"));
2799 len += strlen(qemu_opt_get(opts, "mount_tag"));
2800 len += strlen(qemu_opt_get(opts, "path"));
2801 arg_fsdev = qemu_malloc((len + 1) * sizeof(*arg_fsdev));
2802
2803 if (!arg_fsdev) {
2804 fprintf(stderr, "No memory to parse -fsdev for %s\n",
2805 optarg);
2806 exit(1);
2807 }
2808
2809 sprintf(arg_fsdev, "%s,id=%s,path=%s",
2810 qemu_opt_get(opts, "fstype"),
2811 qemu_opt_get(opts, "mount_tag"),
2812 qemu_opt_get(opts, "path"));
2813
2814 len = strlen("virtio-9p-pci,fsdev=,mount_tag=");
2815 len += 2*strlen(qemu_opt_get(opts, "mount_tag"));
2816 arg_9p = qemu_malloc((len + 1) * sizeof(*arg_9p));
2817
2818 if (!arg_9p) {
2819 fprintf(stderr, "No memory to parse -device for %s\n",
2820 optarg);
2821 exit(1);
2822 }
2823
2824 sprintf(arg_9p, "virtio-9p-pci,fsdev=%s,mount_tag=%s",
2825 qemu_opt_get(opts, "mount_tag"),
2826 qemu_opt_get(opts, "mount_tag"));
2827
2828 if (!qemu_opts_parse(&qemu_fsdev_opts, arg_fsdev, 1)) {
2829 fprintf(stderr, "parse error [fsdev]: %s\n", optarg);
2830 exit(1);
2831 }
2832
2833 if (!qemu_opts_parse(&qemu_device_opts, arg_9p, 1)) {
2834 fprintf(stderr, "parse error [device]: %s\n", optarg);
2835 exit(1);
2836 }
2837
2838 qemu_free(arg_fsdev);
2839 qemu_free(arg_9p);
2840 break;
2841 }
2842 #endif
2843 case QEMU_OPTION_serial:
2844 add_device_config(DEV_SERIAL, optarg);
2845 default_serial = 0;
2846 if (strncmp(optarg, "mon:", 4) == 0) {
2847 default_monitor = 0;
2848 }
2849 break;
2850 case QEMU_OPTION_watchdog:
2851 if (watchdog) {
2852 fprintf(stderr,
2853 "qemu: only one watchdog option may be given\n");
2854 return 1;
2855 }
2856 watchdog = optarg;
2857 break;
2858 case QEMU_OPTION_watchdog_action:
2859 if (select_watchdog_action(optarg) == -1) {
2860 fprintf(stderr, "Unknown -watchdog-action parameter\n");
2861 exit(1);
2862 }
2863 break;
2864 case QEMU_OPTION_virtiocon:
2865 add_device_config(DEV_VIRTCON, optarg);
2866 default_virtcon = 0;
2867 if (strncmp(optarg, "mon:", 4) == 0) {
2868 default_monitor = 0;
2869 }
2870 break;
2871 case QEMU_OPTION_parallel:
2872 add_device_config(DEV_PARALLEL, optarg);
2873 default_parallel = 0;
2874 if (strncmp(optarg, "mon:", 4) == 0) {
2875 default_monitor = 0;
2876 }
2877 break;
2878 case QEMU_OPTION_debugcon:
2879 add_device_config(DEV_DEBUGCON, optarg);
2880 break;
2881 case QEMU_OPTION_loadvm:
2882 loadvm = optarg;
2883 break;
2884 case QEMU_OPTION_full_screen:
2885 full_screen = 1;
2886 break;
2887 #ifdef CONFIG_SDL
2888 case QEMU_OPTION_no_frame:
2889 no_frame = 1;
2890 break;
2891 case QEMU_OPTION_alt_grab:
2892 alt_grab = 1;
2893 break;
2894 case QEMU_OPTION_ctrl_grab:
2895 ctrl_grab = 1;
2896 break;
2897 case QEMU_OPTION_no_quit:
2898 no_quit = 1;
2899 break;
2900 case QEMU_OPTION_sdl:
2901 display_type = DT_SDL;
2902 break;
2903 #endif
2904 case QEMU_OPTION_pidfile:
2905 pid_file = optarg;
2906 break;
2907 case QEMU_OPTION_win2k_hack:
2908 win2k_install_hack = 1;
2909 break;
2910 case QEMU_OPTION_rtc_td_hack:
2911 rtc_td_hack = 1;
2912 break;
2913 case QEMU_OPTION_acpitable:
2914 do_acpitable_option(optarg);
2915 break;
2916 case QEMU_OPTION_smbios:
2917 do_smbios_option(optarg);
2918 break;
2919 case QEMU_OPTION_enable_kvm:
2920 kvm_allowed = 1;
2921 break;
2922 case QEMU_OPTION_usb:
2923 usb_enabled = 1;
2924 break;
2925 case QEMU_OPTION_usbdevice:
2926 usb_enabled = 1;
2927 add_device_config(DEV_USB, optarg);
2928 break;
2929 case QEMU_OPTION_device:
2930 if (!qemu_opts_parse(&qemu_device_opts, optarg, 1)) {
2931 exit(1);
2932 }
2933 break;
2934 case QEMU_OPTION_smp:
2935 smp_parse(optarg);
2936 if (smp_cpus < 1) {
2937 fprintf(stderr, "Invalid number of CPUs\n");
2938 exit(1);
2939 }
2940 if (max_cpus < smp_cpus) {
2941 fprintf(stderr, "maxcpus must be equal to or greater than "
2942 "smp\n");
2943 exit(1);
2944 }
2945 if (max_cpus > 255) {
2946 fprintf(stderr, "Unsupported number of maxcpus\n");
2947 exit(1);
2948 }
2949 break;
2950 case QEMU_OPTION_vnc:
2951 display_type = DT_VNC;
2952 vnc_display = optarg;
2953 break;
2954 case QEMU_OPTION_no_acpi:
2955 acpi_enabled = 0;
2956 break;
2957 case QEMU_OPTION_no_hpet:
2958 no_hpet = 1;
2959 break;
2960 case QEMU_OPTION_balloon:
2961 if (balloon_parse(optarg) < 0) {
2962 fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
2963 exit(1);
2964 }
2965 break;
2966 case QEMU_OPTION_no_reboot:
2967 no_reboot = 1;
2968 break;
2969 case QEMU_OPTION_no_shutdown:
2970 no_shutdown = 1;
2971 break;
2972 case QEMU_OPTION_show_cursor:
2973 cursor_hide = 0;
2974 break;
2975 case QEMU_OPTION_uuid:
2976 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
2977 fprintf(stderr, "Fail to parse UUID string."
2978 " Wrong format.\n");
2979 exit(1);
2980 }
2981 break;
2982 #ifndef _WIN32
2983 case QEMU_OPTION_daemonize:
2984 daemonize = 1;
2985 break;
2986 #endif
2987 case QEMU_OPTION_option_rom:
2988 if (nb_option_roms >= MAX_OPTION_ROMS) {
2989 fprintf(stderr, "Too many option ROMs\n");
2990 exit(1);
2991 }
2992 option_rom[nb_option_roms] = optarg;
2993 nb_option_roms++;
2994 break;
2995 case QEMU_OPTION_semihosting:
2996 semihosting_enabled = 1;
2997 break;
2998 case QEMU_OPTION_name:
2999 qemu_name = qemu_strdup(optarg);
3000 {
3001 char *p = strchr(qemu_name, ',');
3002 if (p != NULL) {
3003 *p++ = 0;
3004 if (strncmp(p, "process=", 8)) {
3005 fprintf(stderr, "Unknown subargument %s to -name", p);
3006 exit(1);
3007 }
3008 p += 8;
3009 set_proc_name(p);
3010 }
3011 }
3012 break;
3013 case QEMU_OPTION_prom_env:
3014 if (nb_prom_envs >= MAX_PROM_ENVS) {
3015 fprintf(stderr, "Too many prom variables\n");
3016 exit(1);
3017 }
3018 prom_envs[nb_prom_envs] = optarg;
3019 nb_prom_envs++;
3020 break;
3021 case QEMU_OPTION_old_param:
3022 old_param = 1;
3023 break;
3024 case QEMU_OPTION_clock:
3025 configure_alarms(optarg);
3026 break;
3027 case QEMU_OPTION_startdate:
3028 configure_rtc_date_offset(optarg, 1);
3029 break;
3030 case QEMU_OPTION_rtc:
3031 opts = qemu_opts_parse(&qemu_rtc_opts, optarg, 0);
3032 if (!opts) {
3033 exit(1);
3034 }
3035 configure_rtc(opts);
3036 break;
3037 case QEMU_OPTION_tb_size:
3038 tb_size = strtol(optarg, NULL, 0);
3039 if (tb_size < 0)
3040 tb_size = 0;
3041 break;
3042 case QEMU_OPTION_icount:
3043 icount_option = optarg;
3044 break;
3045 case QEMU_OPTION_incoming:
3046 incoming = optarg;
3047 break;
3048 case QEMU_OPTION_nodefaults:
3049 default_serial = 0;
3050 default_parallel = 0;
3051 default_virtcon = 0;
3052 default_monitor = 0;
3053 default_vga = 0;
3054 default_net = 0;
3055 default_floppy = 0;
3056 default_cdrom = 0;
3057 default_sdcard = 0;
3058 break;
3059 #ifndef _WIN32
3060 case QEMU_OPTION_chroot:
3061 chroot_dir = optarg;
3062 break;
3063 case QEMU_OPTION_runas:
3064 run_as = optarg;
3065 break;
3066 #endif
3067 case QEMU_OPTION_xen_domid:
3068 if (!(xen_available())) {
3069 printf("Option %s not supported for this target\n", popt->name);
3070 exit(1);
3071 }
3072 xen_domid = atoi(optarg);
3073 break;
3074 case QEMU_OPTION_xen_create:
3075 if (!(xen_available())) {
3076 printf("Option %s not supported for this target\n", popt->name);
3077 exit(1);
3078 }
3079 xen_mode = XEN_CREATE;
3080 break;
3081 case QEMU_OPTION_xen_attach:
3082 if (!(xen_available())) {
3083 printf("Option %s not supported for this target\n", popt->name);
3084 exit(1);
3085 }
3086 xen_mode = XEN_ATTACH;
3087 break;
3088 case QEMU_OPTION_readconfig:
3089 {
3090 int ret = qemu_read_config_file(optarg);
3091 if (ret < 0) {
3092 fprintf(stderr, "read config %s: %s\n", optarg,
3093 strerror(-ret));
3094 exit(1);
3095 }
3096 break;
3097 }
3098 case QEMU_OPTION_writeconfig:
3099 {
3100 FILE *fp;
3101 if (strcmp(optarg, "-") == 0) {
3102 fp = stdout;
3103 } else {
3104 fp = fopen(optarg, "w");
3105 if (fp == NULL) {
3106 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
3107 exit(1);
3108 }
3109 }
3110 qemu_config_write(fp);
3111 fclose(fp);
3112 break;
3113 }
3114 default:
3115 os_parse_cmd_args(popt->index, optarg);
3116 }
3117 }
3118 }
3119 loc_set_none();
3120
3121 /* If no data_dir is specified then try to find it relative to the
3122 executable path. */
3123 if (!data_dir) {
3124 data_dir = os_find_datadir(argv[0]);
3125 }
3126 /* If all else fails use the install patch specified when building. */
3127 if (!data_dir) {
3128 data_dir = CONFIG_QEMU_DATADIR;
3129 }
3130
3131 /*
3132 * Default to max_cpus = smp_cpus, in case the user doesn't
3133 * specify a max_cpus value.
3134 */
3135 if (!max_cpus)
3136 max_cpus = smp_cpus;
3137
3138 machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
3139 if (smp_cpus > machine->max_cpus) {
3140 fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
3141 "supported by machine `%s' (%d)\n", smp_cpus, machine->name,
3142 machine->max_cpus);
3143 exit(1);
3144 }
3145
3146 qemu_opts_foreach(&qemu_device_opts, default_driver_check, NULL, 0);
3147 qemu_opts_foreach(&qemu_global_opts, default_driver_check, NULL, 0);
3148
3149 if (machine->no_serial) {
3150 default_serial = 0;
3151 }
3152 if (machine->no_parallel) {
3153 default_parallel = 0;
3154 }
3155 if (!machine->use_virtcon) {
3156 default_virtcon = 0;
3157 }
3158 if (machine->no_vga) {
3159 default_vga = 0;
3160 }
3161 if (machine->no_floppy) {
3162 default_floppy = 0;
3163 }
3164 if (machine->no_cdrom) {
3165 default_cdrom = 0;
3166 }
3167 if (machine->no_sdcard) {
3168 default_sdcard = 0;
3169 }
3170
3171 if (display_type == DT_NOGRAPHIC) {
3172 if (default_parallel)
3173 add_device_config(DEV_PARALLEL, "null");
3174 if (default_serial && default_monitor) {
3175 add_device_config(DEV_SERIAL, "mon:stdio");
3176 } else if (default_virtcon && default_monitor) {
3177 add_device_config(DEV_VIRTCON, "mon:stdio");
3178 } else {
3179 if (default_serial)
3180 add_device_config(DEV_SERIAL, "stdio");
3181 if (default_virtcon)
3182 add_device_config(DEV_VIRTCON, "stdio");
3183 if (default_monitor)
3184 monitor_parse("stdio", "readline");
3185 }
3186 } else {
3187 if (default_serial)
3188 add_device_config(DEV_SERIAL, "vc:80Cx24C");
3189 if (default_parallel)
3190 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
3191 if (default_monitor)
3192 monitor_parse("vc:80Cx24C", "readline");
3193 if (default_virtcon)
3194 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
3195 }
3196 if (default_vga)
3197 vga_interface_type = VGA_CIRRUS;
3198
3199 socket_init();
3200
3201 if (qemu_opts_foreach(&qemu_chardev_opts, chardev_init_func, NULL, 1) != 0)
3202 exit(1);
3203 #ifdef CONFIG_LINUX
3204 if (qemu_opts_foreach(&qemu_fsdev_opts, fsdev_init_func, NULL, 1) != 0) {
3205 exit(1);
3206 }
3207 #endif
3208
3209 #ifndef _WIN32
3210 if (daemonize) {
3211 pid_t pid;
3212
3213 if (pipe(fds) == -1)
3214 exit(1);
3215
3216 pid = fork();
3217 if (pid > 0) {
3218 uint8_t status;
3219 ssize_t len;
3220
3221 close(fds[1]);
3222
3223 again:
3224 len = read(fds[0], &status, 1);
3225 if (len == -1 && (errno == EINTR))
3226 goto again;
3227
3228 if (len != 1)
3229 exit(1);
3230 else if (status == 1) {
3231 fprintf(stderr, "Could not acquire pidfile: %s\n", strerror(errno));
3232 exit(1);
3233 } else
3234 exit(0);
3235 } else if (pid < 0)
3236 exit(1);
3237
3238 close(fds[0]);
3239 qemu_set_cloexec(fds[1]);
3240
3241 setsid();
3242
3243 pid = fork();
3244 if (pid > 0)
3245 exit(0);
3246 else if (pid < 0)
3247 exit(1);
3248
3249 umask(027);
3250
3251 signal(SIGTSTP, SIG_IGN);
3252 signal(SIGTTOU, SIG_IGN);
3253 signal(SIGTTIN, SIG_IGN);
3254 }
3255 #endif
3256
3257 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
3258 #ifndef _WIN32
3259 if (daemonize) {
3260 uint8_t status = 1;
3261 if (write(fds[1], &status, 1) != 1) {
3262 perror("daemonize. Writing to pipe\n");
3263 }
3264 } else
3265 #endif
3266 fprintf(stderr, "Could not acquire pid file: %s\n", strerror(errno));
3267 exit(1);
3268 }
3269
3270 if (kvm_allowed) {
3271 int ret = kvm_init(smp_cpus);
3272 if (ret < 0) {
3273 if (!kvm_available()) {
3274 printf("KVM not supported for this target\n");
3275 } else {
3276 fprintf(stderr, "failed to initialize KVM: %s\n", strerror(-ret));
3277 }
3278 exit(1);
3279 }
3280 }
3281
3282 if (qemu_init_main_loop()) {
3283 fprintf(stderr, "qemu_init_main_loop failed\n");
3284 exit(1);
3285 }
3286 linux_boot = (kernel_filename != NULL);
3287
3288 if (!linux_boot && *kernel_cmdline != '\0') {
3289 fprintf(stderr, "-append only allowed with -kernel option\n");
3290 exit(1);
3291 }
3292
3293 if (!linux_boot && initrd_filename != NULL) {
3294 fprintf(stderr, "-initrd only allowed with -kernel option\n");
3295 exit(1);
3296 }
3297
3298 #ifndef _WIN32
3299 /* Win32 doesn't support line-buffering and requires size >= 2 */
3300 setvbuf(stdout, NULL, _IOLBF, 0);
3301 #endif
3302
3303 if (init_timer_alarm() < 0) {
3304 fprintf(stderr, "could not initialize alarm timer\n");
3305 exit(1);
3306 }
3307 configure_icount(icount_option);
3308
3309 if (net_init_clients() < 0) {
3310 exit(1);
3311 }
3312
3313 /* init the bluetooth world */
3314 if (foreach_device_config(DEV_BT, bt_parse))
3315 exit(1);
3316
3317 /* init the memory */
3318 if (ram_size == 0)
3319 ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
3320
3321 /* init the dynamic translator */
3322 cpu_exec_init_all(tb_size * 1024 * 1024);
3323
3324 bdrv_init_with_whitelist();
3325
3326 blk_mig_init();
3327
3328 if (default_cdrom) {
3329 /* we always create the cdrom drive, even if no disk is there */
3330 drive_add(NULL, CDROM_ALIAS);
3331 }
3332
3333 if (default_floppy) {
3334 /* we always create at least one floppy */
3335 drive_add(NULL, FD_ALIAS, 0);
3336 }
3337
3338 if (default_sdcard) {
3339 /* we always create one sd slot, even if no card is in it */
3340 drive_add(NULL, SD_ALIAS);
3341 }
3342
3343 /* open the virtual block devices */
3344 if (snapshot)
3345 qemu_opts_foreach(&qemu_drive_opts, drive_enable_snapshot, NULL, 0);
3346 if (qemu_opts_foreach(&qemu_drive_opts, drive_init_func, machine, 1) != 0)
3347 exit(1);
3348
3349 register_savevm_live("ram", 0, 3, NULL, ram_save_live, NULL,
3350 ram_load, NULL);
3351
3352 if (nb_numa_nodes > 0) {
3353 int i;
3354
3355 if (nb_numa_nodes > smp_cpus) {
3356 nb_numa_nodes = smp_cpus;
3357 }
3358
3359 /* If no memory size if given for any node, assume the default case
3360 * and distribute the available memory equally across all nodes
3361 */
3362 for (i = 0; i < nb_numa_nodes; i++) {
3363 if (node_mem[i] != 0)
3364 break;
3365 }
3366 if (i == nb_numa_nodes) {
3367 uint64_t usedmem = 0;
3368
3369 /* On Linux, the each node's border has to be 8MB aligned,
3370 * the final node gets the rest.
3371 */
3372 for (i = 0; i < nb_numa_nodes - 1; i++) {
3373 node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1);
3374 usedmem += node_mem[i];
3375 }
3376 node_mem[i] = ram_size - usedmem;
3377 }
3378
3379 for (i = 0; i < nb_numa_nodes; i++) {
3380 if (node_cpumask[i] != 0)
3381 break;
3382 }
3383 /* assigning the VCPUs round-robin is easier to implement, guest OSes
3384 * must cope with this anyway, because there are BIOSes out there in
3385 * real machines which also use this scheme.
3386 */
3387 if (i == nb_numa_nodes) {
3388 for (i = 0; i < smp_cpus; i++) {
3389 node_cpumask[i % nb_numa_nodes] |= 1 << i;
3390 }
3391 }
3392 }
3393
3394 if (qemu_opts_foreach(&qemu_mon_opts, mon_init_func, NULL, 1) != 0) {
3395 exit(1);
3396 }
3397
3398 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
3399 exit(1);
3400 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
3401 exit(1);
3402 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
3403 exit(1);
3404 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
3405 exit(1);
3406
3407 module_call_init(MODULE_INIT_DEVICE);
3408
3409 if (qemu_opts_foreach(&qemu_device_opts, device_help_func, NULL, 0) != 0)
3410 exit(0);
3411
3412 if (watchdog) {
3413 i = select_watchdog(watchdog);
3414 if (i > 0)
3415 exit (i == 1 ? 1 : 0);
3416 }
3417
3418 if (machine->compat_props) {
3419 qdev_prop_register_global_list(machine->compat_props);
3420 }
3421 qemu_add_globals();
3422
3423 machine->init(ram_size, boot_devices,
3424 kernel_filename, kernel_cmdline, initrd_filename, cpu_model);
3425
3426 cpu_synchronize_all_post_init();
3427
3428 /* must be after terminal init, SDL library changes signal handlers */
3429 os_setup_signal_handling();
3430
3431 set_numa_modes();
3432
3433 current_machine = machine;
3434
3435 /* init USB devices */
3436 if (usb_enabled) {
3437 if (foreach_device_config(DEV_USB, usb_parse) < 0)
3438 exit(1);
3439 }
3440
3441 /* init generic devices */
3442 if (qemu_opts_foreach(&qemu_device_opts, device_init_func, NULL, 1) != 0)
3443 exit(1);
3444
3445 net_check_clients();
3446
3447 /* just use the first displaystate for the moment */
3448 ds = get_displaystate();
3449
3450 if (display_type == DT_DEFAULT) {
3451 #if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
3452 display_type = DT_SDL;
3453 #else
3454 display_type = DT_VNC;
3455 vnc_display = "localhost:0,to=99";
3456 show_vnc_port = 1;
3457 #endif
3458 }
3459
3460
3461 switch (display_type) {
3462 case DT_NOGRAPHIC:
3463 break;
3464 #if defined(CONFIG_CURSES)
3465 case DT_CURSES:
3466 curses_display_init(ds, full_screen);
3467 break;
3468 #endif
3469 #if defined(CONFIG_SDL)
3470 case DT_SDL:
3471 sdl_display_init(ds, full_screen, no_frame);
3472 break;
3473 #elif defined(CONFIG_COCOA)
3474 case DT_SDL:
3475 cocoa_display_init(ds, full_screen);
3476 break;
3477 #endif
3478 case DT_VNC:
3479 vnc_display_init(ds);
3480 if (vnc_display_open(ds, vnc_display) < 0)
3481 exit(1);
3482
3483 if (show_vnc_port) {
3484 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
3485 }
3486 break;
3487 default:
3488 break;
3489 }
3490 dpy_resize(ds);
3491
3492 dcl = ds->listeners;
3493 while (dcl != NULL) {
3494 if (dcl->dpy_refresh != NULL) {
3495 ds->gui_timer = qemu_new_timer(rt_clock, gui_update, ds);
3496 qemu_mod_timer(ds->gui_timer, qemu_get_clock(rt_clock));
3497 break;
3498 }
3499 dcl = dcl->next;
3500 }
3501
3502 if (display_type == DT_NOGRAPHIC || display_type == DT_VNC) {
3503 nographic_timer = qemu_new_timer(rt_clock, nographic_update, NULL);
3504 qemu_mod_timer(nographic_timer, qemu_get_clock(rt_clock));
3505 }
3506
3507 text_consoles_set_display(ds);
3508
3509 if (gdbstub_dev && gdbserver_start(gdbstub_dev) < 0) {
3510 fprintf(stderr, "qemu: could not open gdbserver on device '%s'\n",
3511 gdbstub_dev);
3512 exit(1);
3513 }
3514
3515 qdev_machine_creation_done();
3516
3517 if (rom_load_all() != 0) {
3518 fprintf(stderr, "rom loading failed\n");
3519 exit(1);
3520 }
3521
3522 qemu_system_reset();
3523 if (loadvm) {
3524 if (load_vmstate(loadvm) < 0) {
3525 autostart = 0;
3526 }
3527 }
3528
3529 if (incoming) {
3530 qemu_start_incoming_migration(incoming);
3531 } else if (autostart) {
3532 vm_start();
3533 }
3534
3535 #ifndef _WIN32
3536 if (daemonize) {
3537 uint8_t status = 0;
3538 ssize_t len;
3539
3540 again1:
3541 len = write(fds[1], &status, 1);
3542 if (len == -1 && (errno == EINTR))
3543 goto again1;
3544
3545 if (len != 1)
3546 exit(1);
3547
3548 if (chdir("/")) {
3549 perror("not able to chdir to /");
3550 exit(1);
3551 }
3552 TFR(fd = qemu_open("/dev/null", O_RDWR));
3553 if (fd == -1)
3554 exit(1);
3555 }
3556
3557 if (run_as) {
3558 pwd = getpwnam(run_as);
3559 if (!pwd) {
3560 fprintf(stderr, "User \"%s\" doesn't exist\n", run_as);
3561 exit(1);
3562 }
3563 }
3564
3565 if (chroot_dir) {
3566 if (chroot(chroot_dir) < 0) {
3567 fprintf(stderr, "chroot failed\n");
3568 exit(1);
3569 }
3570 if (chdir("/")) {
3571 perror("not able to chdir to /");
3572 exit(1);
3573 }
3574 }
3575
3576 if (run_as) {
3577 if (setgid(pwd->pw_gid) < 0) {
3578 fprintf(stderr, "Failed to setgid(%d)\n", pwd->pw_gid);
3579 exit(1);
3580 }
3581 if (setuid(pwd->pw_uid) < 0) {
3582 fprintf(stderr, "Failed to setuid(%d)\n", pwd->pw_uid);
3583 exit(1);
3584 }
3585 if (setuid(0) != -1) {
3586 fprintf(stderr, "Dropping privileges failed\n");
3587 exit(1);
3588 }
3589 }
3590
3591 if (daemonize) {
3592 dup2(fd, 0);
3593 dup2(fd, 1);
3594 dup2(fd, 2);
3595
3596 close(fd);
3597 }
3598 #endif
3599
3600 main_loop();
3601 quit_timers();
3602 net_cleanup();
3603
3604 return 0;
3605 }
QEmu