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Move runas handling from vl.c to OS specific files.
[mirror_qemu.git] / vl.c
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 <sys/times.h>
38 #include <sys/wait.h>
39 #include <termios.h>
40 #include <sys/mman.h>
41 #include <sys/ioctl.h>
42 #include <sys/resource.h>
43 #include <sys/socket.h>
44 #include <netinet/in.h>
45 #include <net/if.h>
46 #include <arpa/inet.h>
47 #include <dirent.h>
48 #include <netdb.h>
49 #include <sys/select.h>
50 #ifdef CONFIG_BSD
51 #include <sys/stat.h>
52 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
53 #include <libutil.h>
54 #include <sys/sysctl.h>
55 #else
56 #include <util.h>
57 #endif
58 #else
59 #ifdef __linux__
60 #include <pty.h>
61 #include <malloc.h>
62 #include <sys/prctl.h>
63
64 #include <linux/ppdev.h>
65 #include <linux/parport.h>
66 #endif
67 #ifdef __sun__
68 #include <sys/stat.h>
69 #include <sys/ethernet.h>
70 #include <sys/sockio.h>
71 #include <netinet/arp.h>
72 #include <netinet/in_systm.h>
73 #include <netinet/ip.h>
74 #include <netinet/ip_icmp.h> // must come after ip.h
75 #include <netinet/udp.h>
76 #include <netinet/tcp.h>
77 #include <net/if.h>
78 #include <syslog.h>
79 #include <stropts.h>
80 /* See MySQL bug #7156 (http://bugs.mysql.com/bug.php?id=7156) for
81 discussion about Solaris header problems */
82 extern int madvise(caddr_t, size_t, int);
83 #endif
84 #endif
85 #endif
86
87 #if defined(__OpenBSD__)
88 #include <util.h>
89 #endif
90
91 #if defined(CONFIG_VDE)
92 #include <libvdeplug.h>
93 #endif
94
95 #ifdef _WIN32
96 #include <windows.h>
97 #endif
98
99 #ifdef CONFIG_SDL
100 #if defined(__APPLE__) || defined(main)
101 #include <SDL.h>
102 int qemu_main(int argc, char **argv, char **envp);
103 int main(int argc, char **argv)
104 {
105 return qemu_main(argc, argv, NULL);
106 }
107 #undef main
108 #define main qemu_main
109 #endif
110 #endif /* CONFIG_SDL */
111
112 #ifdef CONFIG_COCOA
113 #undef main
114 #define main qemu_main
115 #endif /* CONFIG_COCOA */
116
117 #include "hw/hw.h"
118 #include "hw/boards.h"
119 #include "hw/usb.h"
120 #include "hw/pcmcia.h"
121 #include "hw/pc.h"
122 #include "hw/isa.h"
123 #include "hw/baum.h"
124 #include "hw/bt.h"
125 #include "hw/watchdog.h"
126 #include "hw/smbios.h"
127 #include "hw/xen.h"
128 #include "hw/qdev.h"
129 #include "hw/loader.h"
130 #include "bt-host.h"
131 #include "net.h"
132 #include "net/slirp.h"
133 #include "monitor.h"
134 #include "console.h"
135 #include "sysemu.h"
136 #include "gdbstub.h"
137 #include "qemu-timer.h"
138 #include "qemu-char.h"
139 #include "cache-utils.h"
140 #include "block.h"
141 #include "block_int.h"
142 #include "block-migration.h"
143 #include "dma.h"
144 #include "audio/audio.h"
145 #include "migration.h"
146 #include "kvm.h"
147 #include "qemu-option.h"
148 #include "qemu-config.h"
149 #include "qemu-objects.h"
150 #include "qemu-options.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 /***********************************************************/
1501 /* machine registration */
1502
1503 static QEMUMachine *first_machine = NULL;
1504 QEMUMachine *current_machine = NULL;
1505
1506 int qemu_register_machine(QEMUMachine *m)
1507 {
1508 QEMUMachine **pm;
1509 pm = &first_machine;
1510 while (*pm != NULL)
1511 pm = &(*pm)->next;
1512 m->next = NULL;
1513 *pm = m;
1514 return 0;
1515 }
1516
1517 static QEMUMachine *find_machine(const char *name)
1518 {
1519 QEMUMachine *m;
1520
1521 for(m = first_machine; m != NULL; m = m->next) {
1522 if (!strcmp(m->name, name))
1523 return m;
1524 if (m->alias && !strcmp(m->alias, name))
1525 return m;
1526 }
1527 return NULL;
1528 }
1529
1530 static QEMUMachine *find_default_machine(void)
1531 {
1532 QEMUMachine *m;
1533
1534 for(m = first_machine; m != NULL; m = m->next) {
1535 if (m->is_default) {
1536 return m;
1537 }
1538 }
1539 return NULL;
1540 }
1541
1542 /***********************************************************/
1543 /* main execution loop */
1544
1545 static void gui_update(void *opaque)
1546 {
1547 uint64_t interval = GUI_REFRESH_INTERVAL;
1548 DisplayState *ds = opaque;
1549 DisplayChangeListener *dcl = ds->listeners;
1550
1551 qemu_flush_coalesced_mmio_buffer();
1552 dpy_refresh(ds);
1553
1554 while (dcl != NULL) {
1555 if (dcl->gui_timer_interval &&
1556 dcl->gui_timer_interval < interval)
1557 interval = dcl->gui_timer_interval;
1558 dcl = dcl->next;
1559 }
1560 qemu_mod_timer(ds->gui_timer, interval + qemu_get_clock(rt_clock));
1561 }
1562
1563 static void nographic_update(void *opaque)
1564 {
1565 uint64_t interval = GUI_REFRESH_INTERVAL;
1566
1567 qemu_flush_coalesced_mmio_buffer();
1568 qemu_mod_timer(nographic_timer, interval + qemu_get_clock(rt_clock));
1569 }
1570
1571 struct vm_change_state_entry {
1572 VMChangeStateHandler *cb;
1573 void *opaque;
1574 QLIST_ENTRY (vm_change_state_entry) entries;
1575 };
1576
1577 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1578
1579 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1580 void *opaque)
1581 {
1582 VMChangeStateEntry *e;
1583
1584 e = qemu_mallocz(sizeof (*e));
1585
1586 e->cb = cb;
1587 e->opaque = opaque;
1588 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1589 return e;
1590 }
1591
1592 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1593 {
1594 QLIST_REMOVE (e, entries);
1595 qemu_free (e);
1596 }
1597
1598 void vm_state_notify(int running, int reason)
1599 {
1600 VMChangeStateEntry *e;
1601
1602 for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
1603 e->cb(e->opaque, running, reason);
1604 }
1605 }
1606
1607 void vm_start(void)
1608 {
1609 if (!vm_running) {
1610 cpu_enable_ticks();
1611 vm_running = 1;
1612 vm_state_notify(1, 0);
1613 resume_all_vcpus();
1614 monitor_protocol_event(QEVENT_RESUME, NULL);
1615 }
1616 }
1617
1618 /* reset/shutdown handler */
1619
1620 typedef struct QEMUResetEntry {
1621 QTAILQ_ENTRY(QEMUResetEntry) entry;
1622 QEMUResetHandler *func;
1623 void *opaque;
1624 } QEMUResetEntry;
1625
1626 static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
1627 QTAILQ_HEAD_INITIALIZER(reset_handlers);
1628 static int reset_requested;
1629 static int shutdown_requested;
1630 static int powerdown_requested;
1631 int debug_requested;
1632 int vmstop_requested;
1633
1634 int qemu_shutdown_requested(void)
1635 {
1636 int r = shutdown_requested;
1637 shutdown_requested = 0;
1638 return r;
1639 }
1640
1641 int qemu_reset_requested(void)
1642 {
1643 int r = reset_requested;
1644 reset_requested = 0;
1645 return r;
1646 }
1647
1648 int qemu_powerdown_requested(void)
1649 {
1650 int r = powerdown_requested;
1651 powerdown_requested = 0;
1652 return r;
1653 }
1654
1655 static int qemu_debug_requested(void)
1656 {
1657 int r = debug_requested;
1658 debug_requested = 0;
1659 return r;
1660 }
1661
1662 static int qemu_vmstop_requested(void)
1663 {
1664 int r = vmstop_requested;
1665 vmstop_requested = 0;
1666 return r;
1667 }
1668
1669 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
1670 {
1671 QEMUResetEntry *re = qemu_mallocz(sizeof(QEMUResetEntry));
1672
1673 re->func = func;
1674 re->opaque = opaque;
1675 QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
1676 }
1677
1678 void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
1679 {
1680 QEMUResetEntry *re;
1681
1682 QTAILQ_FOREACH(re, &reset_handlers, entry) {
1683 if (re->func == func && re->opaque == opaque) {
1684 QTAILQ_REMOVE(&reset_handlers, re, entry);
1685 qemu_free(re);
1686 return;
1687 }
1688 }
1689 }
1690
1691 void qemu_system_reset(void)
1692 {
1693 QEMUResetEntry *re, *nre;
1694
1695 /* reset all devices */
1696 QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
1697 re->func(re->opaque);
1698 }
1699 monitor_protocol_event(QEVENT_RESET, NULL);
1700 cpu_synchronize_all_post_reset();
1701 }
1702
1703 void qemu_system_reset_request(void)
1704 {
1705 if (no_reboot) {
1706 shutdown_requested = 1;
1707 } else {
1708 reset_requested = 1;
1709 }
1710 qemu_notify_event();
1711 }
1712
1713 void qemu_system_shutdown_request(void)
1714 {
1715 shutdown_requested = 1;
1716 qemu_notify_event();
1717 }
1718
1719 void qemu_system_powerdown_request(void)
1720 {
1721 powerdown_requested = 1;
1722 qemu_notify_event();
1723 }
1724
1725 void main_loop_wait(int nonblocking)
1726 {
1727 IOHandlerRecord *ioh;
1728 fd_set rfds, wfds, xfds;
1729 int ret, nfds;
1730 struct timeval tv;
1731 int timeout;
1732
1733 if (nonblocking)
1734 timeout = 0;
1735 else {
1736 timeout = qemu_calculate_timeout();
1737 qemu_bh_update_timeout(&timeout);
1738 }
1739
1740 os_host_main_loop_wait(&timeout);
1741
1742 /* poll any events */
1743 /* XXX: separate device handlers from system ones */
1744 nfds = -1;
1745 FD_ZERO(&rfds);
1746 FD_ZERO(&wfds);
1747 FD_ZERO(&xfds);
1748 QLIST_FOREACH(ioh, &io_handlers, next) {
1749 if (ioh->deleted)
1750 continue;
1751 if (ioh->fd_read &&
1752 (!ioh->fd_read_poll ||
1753 ioh->fd_read_poll(ioh->opaque) != 0)) {
1754 FD_SET(ioh->fd, &rfds);
1755 if (ioh->fd > nfds)
1756 nfds = ioh->fd;
1757 }
1758 if (ioh->fd_write) {
1759 FD_SET(ioh->fd, &wfds);
1760 if (ioh->fd > nfds)
1761 nfds = ioh->fd;
1762 }
1763 }
1764
1765 tv.tv_sec = timeout / 1000;
1766 tv.tv_usec = (timeout % 1000) * 1000;
1767
1768 slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
1769
1770 qemu_mutex_unlock_iothread();
1771 ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
1772 qemu_mutex_lock_iothread();
1773 if (ret > 0) {
1774 IOHandlerRecord *pioh;
1775
1776 QLIST_FOREACH_SAFE(ioh, &io_handlers, next, pioh) {
1777 if (ioh->deleted) {
1778 QLIST_REMOVE(ioh, next);
1779 qemu_free(ioh);
1780 continue;
1781 }
1782 if (ioh->fd_read && FD_ISSET(ioh->fd, &rfds)) {
1783 ioh->fd_read(ioh->opaque);
1784 }
1785 if (ioh->fd_write && FD_ISSET(ioh->fd, &wfds)) {
1786 ioh->fd_write(ioh->opaque);
1787 }
1788 }
1789 }
1790
1791 slirp_select_poll(&rfds, &wfds, &xfds, (ret < 0));
1792
1793 qemu_run_all_timers();
1794
1795 /* Check bottom-halves last in case any of the earlier events triggered
1796 them. */
1797 qemu_bh_poll();
1798
1799 }
1800
1801 static int vm_can_run(void)
1802 {
1803 if (powerdown_requested)
1804 return 0;
1805 if (reset_requested)
1806 return 0;
1807 if (shutdown_requested)
1808 return 0;
1809 if (debug_requested)
1810 return 0;
1811 return 1;
1812 }
1813
1814 qemu_irq qemu_system_powerdown;
1815
1816 static void main_loop(void)
1817 {
1818 int r;
1819
1820 qemu_main_loop_start();
1821
1822 for (;;) {
1823 do {
1824 bool nonblocking = false;
1825 #ifdef CONFIG_PROFILER
1826 int64_t ti;
1827 #endif
1828 #ifndef CONFIG_IOTHREAD
1829 nonblocking = tcg_cpu_exec();
1830 #endif
1831 #ifdef CONFIG_PROFILER
1832 ti = profile_getclock();
1833 #endif
1834 main_loop_wait(nonblocking);
1835 #ifdef CONFIG_PROFILER
1836 dev_time += profile_getclock() - ti;
1837 #endif
1838 } while (vm_can_run());
1839
1840 if ((r = qemu_debug_requested())) {
1841 vm_stop(r);
1842 }
1843 if (qemu_shutdown_requested()) {
1844 monitor_protocol_event(QEVENT_SHUTDOWN, NULL);
1845 if (no_shutdown) {
1846 vm_stop(0);
1847 no_shutdown = 0;
1848 } else
1849 break;
1850 }
1851 if (qemu_reset_requested()) {
1852 pause_all_vcpus();
1853 qemu_system_reset();
1854 resume_all_vcpus();
1855 }
1856 if (qemu_powerdown_requested()) {
1857 monitor_protocol_event(QEVENT_POWERDOWN, NULL);
1858 qemu_irq_raise(qemu_system_powerdown);
1859 }
1860 if ((r = qemu_vmstop_requested())) {
1861 vm_stop(r);
1862 }
1863 }
1864 pause_all_vcpus();
1865 }
1866
1867 static void version(void)
1868 {
1869 printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
1870 }
1871
1872 static void help(int exitcode)
1873 {
1874 const char *options_help =
1875 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
1876 opt_help
1877 #define DEFHEADING(text) stringify(text) "\n"
1878 #include "qemu-options.def"
1879 #undef DEF
1880 #undef DEFHEADING
1881 #undef GEN_DOCS
1882 ;
1883 version();
1884 printf("usage: %s [options] [disk_image]\n"
1885 "\n"
1886 "'disk_image' is a raw hard disk image for IDE hard disk 0\n"
1887 "\n"
1888 "%s\n"
1889 "During emulation, the following keys are useful:\n"
1890 "ctrl-alt-f toggle full screen\n"
1891 "ctrl-alt-n switch to virtual console 'n'\n"
1892 "ctrl-alt toggle mouse and keyboard grab\n"
1893 "\n"
1894 "When using -nographic, press 'ctrl-a h' to get some help.\n",
1895 "qemu",
1896 options_help);
1897 exit(exitcode);
1898 }
1899
1900 #define HAS_ARG 0x0001
1901
1902 typedef struct QEMUOption {
1903 const char *name;
1904 int flags;
1905 int index;
1906 uint32_t arch_mask;
1907 } QEMUOption;
1908
1909 static const QEMUOption qemu_options[] = {
1910 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1911 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
1912 { option, opt_arg, opt_enum, arch_mask },
1913 #define DEFHEADING(text)
1914 #include "qemu-options.def"
1915 #undef DEF
1916 #undef DEFHEADING
1917 #undef GEN_DOCS
1918 { NULL },
1919 };
1920 static void select_vgahw (const char *p)
1921 {
1922 const char *opts;
1923
1924 default_vga = 0;
1925 vga_interface_type = VGA_NONE;
1926 if (strstart(p, "std", &opts)) {
1927 vga_interface_type = VGA_STD;
1928 } else if (strstart(p, "cirrus", &opts)) {
1929 vga_interface_type = VGA_CIRRUS;
1930 } else if (strstart(p, "vmware", &opts)) {
1931 vga_interface_type = VGA_VMWARE;
1932 } else if (strstart(p, "xenfb", &opts)) {
1933 vga_interface_type = VGA_XENFB;
1934 } else if (!strstart(p, "none", &opts)) {
1935 invalid_vga:
1936 fprintf(stderr, "Unknown vga type: %s\n", p);
1937 exit(1);
1938 }
1939 while (*opts) {
1940 const char *nextopt;
1941
1942 if (strstart(opts, ",retrace=", &nextopt)) {
1943 opts = nextopt;
1944 if (strstart(opts, "dumb", &nextopt))
1945 vga_retrace_method = VGA_RETRACE_DUMB;
1946 else if (strstart(opts, "precise", &nextopt))
1947 vga_retrace_method = VGA_RETRACE_PRECISE;
1948 else goto invalid_vga;
1949 } else goto invalid_vga;
1950 opts = nextopt;
1951 }
1952 }
1953
1954 static int balloon_parse(const char *arg)
1955 {
1956 QemuOpts *opts;
1957
1958 if (strcmp(arg, "none") == 0) {
1959 return 0;
1960 }
1961
1962 if (!strncmp(arg, "virtio", 6)) {
1963 if (arg[6] == ',') {
1964 /* have params -> parse them */
1965 opts = qemu_opts_parse(&qemu_device_opts, arg+7, 0);
1966 if (!opts)
1967 return -1;
1968 } else {
1969 /* create empty opts */
1970 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
1971 }
1972 qemu_opt_set(opts, "driver", "virtio-balloon-pci");
1973 return 0;
1974 }
1975
1976 return -1;
1977 }
1978
1979 char *qemu_find_file(int type, const char *name)
1980 {
1981 int len;
1982 const char *subdir;
1983 char *buf;
1984
1985 /* If name contains path separators then try it as a straight path. */
1986 if ((strchr(name, '/') || strchr(name, '\\'))
1987 && access(name, R_OK) == 0) {
1988 return qemu_strdup(name);
1989 }
1990 switch (type) {
1991 case QEMU_FILE_TYPE_BIOS:
1992 subdir = "";
1993 break;
1994 case QEMU_FILE_TYPE_KEYMAP:
1995 subdir = "keymaps/";
1996 break;
1997 default:
1998 abort();
1999 }
2000 len = strlen(data_dir) + strlen(name) + strlen(subdir) + 2;
2001 buf = qemu_mallocz(len);
2002 snprintf(buf, len, "%s/%s%s", data_dir, subdir, name);
2003 if (access(buf, R_OK)) {
2004 qemu_free(buf);
2005 return NULL;
2006 }
2007 return buf;
2008 }
2009
2010 static int device_help_func(QemuOpts *opts, void *opaque)
2011 {
2012 return qdev_device_help(opts);
2013 }
2014
2015 static int device_init_func(QemuOpts *opts, void *opaque)
2016 {
2017 DeviceState *dev;
2018
2019 dev = qdev_device_add(opts);
2020 if (!dev)
2021 return -1;
2022 return 0;
2023 }
2024
2025 static int chardev_init_func(QemuOpts *opts, void *opaque)
2026 {
2027 CharDriverState *chr;
2028
2029 chr = qemu_chr_open_opts(opts, NULL);
2030 if (!chr)
2031 return -1;
2032 return 0;
2033 }
2034
2035 #ifdef CONFIG_LINUX
2036 static int fsdev_init_func(QemuOpts *opts, void *opaque)
2037 {
2038 int ret;
2039 ret = qemu_fsdev_add(opts);
2040
2041 return ret;
2042 }
2043 #endif
2044
2045 static int mon_init_func(QemuOpts *opts, void *opaque)
2046 {
2047 CharDriverState *chr;
2048 const char *chardev;
2049 const char *mode;
2050 int flags;
2051
2052 mode = qemu_opt_get(opts, "mode");
2053 if (mode == NULL) {
2054 mode = "readline";
2055 }
2056 if (strcmp(mode, "readline") == 0) {
2057 flags = MONITOR_USE_READLINE;
2058 } else if (strcmp(mode, "control") == 0) {
2059 flags = MONITOR_USE_CONTROL;
2060 } else {
2061 fprintf(stderr, "unknown monitor mode \"%s\"\n", mode);
2062 exit(1);
2063 }
2064
2065 if (qemu_opt_get_bool(opts, "default", 0))
2066 flags |= MONITOR_IS_DEFAULT;
2067
2068 chardev = qemu_opt_get(opts, "chardev");
2069 chr = qemu_chr_find(chardev);
2070 if (chr == NULL) {
2071 fprintf(stderr, "chardev \"%s\" not found\n", chardev);
2072 exit(1);
2073 }
2074
2075 monitor_init(chr, flags);
2076 return 0;
2077 }
2078
2079 static void monitor_parse(const char *optarg, const char *mode)
2080 {
2081 static int monitor_device_index = 0;
2082 QemuOpts *opts;
2083 const char *p;
2084 char label[32];
2085 int def = 0;
2086
2087 if (strstart(optarg, "chardev:", &p)) {
2088 snprintf(label, sizeof(label), "%s", p);
2089 } else {
2090 snprintf(label, sizeof(label), "compat_monitor%d",
2091 monitor_device_index);
2092 if (monitor_device_index == 0) {
2093 def = 1;
2094 }
2095 opts = qemu_chr_parse_compat(label, optarg);
2096 if (!opts) {
2097 fprintf(stderr, "parse error: %s\n", optarg);
2098 exit(1);
2099 }
2100 }
2101
2102 opts = qemu_opts_create(&qemu_mon_opts, label, 1);
2103 if (!opts) {
2104 fprintf(stderr, "duplicate chardev: %s\n", label);
2105 exit(1);
2106 }
2107 qemu_opt_set(opts, "mode", mode);
2108 qemu_opt_set(opts, "chardev", label);
2109 if (def)
2110 qemu_opt_set(opts, "default", "on");
2111 monitor_device_index++;
2112 }
2113
2114 struct device_config {
2115 enum {
2116 DEV_USB, /* -usbdevice */
2117 DEV_BT, /* -bt */
2118 DEV_SERIAL, /* -serial */
2119 DEV_PARALLEL, /* -parallel */
2120 DEV_VIRTCON, /* -virtioconsole */
2121 DEV_DEBUGCON, /* -debugcon */
2122 } type;
2123 const char *cmdline;
2124 QTAILQ_ENTRY(device_config) next;
2125 };
2126 QTAILQ_HEAD(, device_config) device_configs = QTAILQ_HEAD_INITIALIZER(device_configs);
2127
2128 static void add_device_config(int type, const char *cmdline)
2129 {
2130 struct device_config *conf;
2131
2132 conf = qemu_mallocz(sizeof(*conf));
2133 conf->type = type;
2134 conf->cmdline = cmdline;
2135 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2136 }
2137
2138 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2139 {
2140 struct device_config *conf;
2141 int rc;
2142
2143 QTAILQ_FOREACH(conf, &device_configs, next) {
2144 if (conf->type != type)
2145 continue;
2146 rc = func(conf->cmdline);
2147 if (0 != rc)
2148 return rc;
2149 }
2150 return 0;
2151 }
2152
2153 static int serial_parse(const char *devname)
2154 {
2155 static int index = 0;
2156 char label[32];
2157
2158 if (strcmp(devname, "none") == 0)
2159 return 0;
2160 if (index == MAX_SERIAL_PORTS) {
2161 fprintf(stderr, "qemu: too many serial ports\n");
2162 exit(1);
2163 }
2164 snprintf(label, sizeof(label), "serial%d", index);
2165 serial_hds[index] = qemu_chr_open(label, devname, NULL);
2166 if (!serial_hds[index]) {
2167 fprintf(stderr, "qemu: could not open serial device '%s': %s\n",
2168 devname, strerror(errno));
2169 return -1;
2170 }
2171 index++;
2172 return 0;
2173 }
2174
2175 static int parallel_parse(const char *devname)
2176 {
2177 static int index = 0;
2178 char label[32];
2179
2180 if (strcmp(devname, "none") == 0)
2181 return 0;
2182 if (index == MAX_PARALLEL_PORTS) {
2183 fprintf(stderr, "qemu: too many parallel ports\n");
2184 exit(1);
2185 }
2186 snprintf(label, sizeof(label), "parallel%d", index);
2187 parallel_hds[index] = qemu_chr_open(label, devname, NULL);
2188 if (!parallel_hds[index]) {
2189 fprintf(stderr, "qemu: could not open parallel device '%s': %s\n",
2190 devname, strerror(errno));
2191 return -1;
2192 }
2193 index++;
2194 return 0;
2195 }
2196
2197 static int virtcon_parse(const char *devname)
2198 {
2199 static int index = 0;
2200 char label[32];
2201 QemuOpts *bus_opts, *dev_opts;
2202
2203 if (strcmp(devname, "none") == 0)
2204 return 0;
2205 if (index == MAX_VIRTIO_CONSOLES) {
2206 fprintf(stderr, "qemu: too many virtio consoles\n");
2207 exit(1);
2208 }
2209
2210 bus_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2211 qemu_opt_set(bus_opts, "driver", "virtio-serial");
2212
2213 dev_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2214 qemu_opt_set(dev_opts, "driver", "virtconsole");
2215
2216 snprintf(label, sizeof(label), "virtcon%d", index);
2217 virtcon_hds[index] = qemu_chr_open(label, devname, NULL);
2218 if (!virtcon_hds[index]) {
2219 fprintf(stderr, "qemu: could not open virtio console '%s': %s\n",
2220 devname, strerror(errno));
2221 return -1;
2222 }
2223 qemu_opt_set(dev_opts, "chardev", label);
2224
2225 index++;
2226 return 0;
2227 }
2228
2229 static int debugcon_parse(const char *devname)
2230 {
2231 QemuOpts *opts;
2232
2233 if (!qemu_chr_open("debugcon", devname, NULL)) {
2234 exit(1);
2235 }
2236 opts = qemu_opts_create(&qemu_device_opts, "debugcon", 1);
2237 if (!opts) {
2238 fprintf(stderr, "qemu: already have a debugcon device\n");
2239 exit(1);
2240 }
2241 qemu_opt_set(opts, "driver", "isa-debugcon");
2242 qemu_opt_set(opts, "chardev", "debugcon");
2243 return 0;
2244 }
2245
2246 static const QEMUOption *lookup_opt(int argc, char **argv,
2247 const char **poptarg, int *poptind)
2248 {
2249 const QEMUOption *popt;
2250 int optind = *poptind;
2251 char *r = argv[optind];
2252 const char *optarg;
2253
2254 loc_set_cmdline(argv, optind, 1);
2255 optind++;
2256 /* Treat --foo the same as -foo. */
2257 if (r[1] == '-')
2258 r++;
2259 popt = qemu_options;
2260 for(;;) {
2261 if (!popt->name) {
2262 error_report("invalid option");
2263 exit(1);
2264 }
2265 if (!strcmp(popt->name, r + 1))
2266 break;
2267 popt++;
2268 }
2269 if (popt->flags & HAS_ARG) {
2270 if (optind >= argc) {
2271 error_report("requires an argument");
2272 exit(1);
2273 }
2274 optarg = argv[optind++];
2275 loc_set_cmdline(argv, optind - 2, 2);
2276 } else {
2277 optarg = NULL;
2278 }
2279
2280 *poptarg = optarg;
2281 *poptind = optind;
2282
2283 return popt;
2284 }
2285
2286 int main(int argc, char **argv, char **envp)
2287 {
2288 const char *gdbstub_dev = NULL;
2289 int i;
2290 int snapshot, linux_boot;
2291 const char *icount_option = NULL;
2292 const char *initrd_filename;
2293 const char *kernel_filename, *kernel_cmdline;
2294 char boot_devices[33] = "cad"; /* default to HD->floppy->CD-ROM */
2295 DisplayState *ds;
2296 DisplayChangeListener *dcl;
2297 int cyls, heads, secs, translation;
2298 QemuOpts *hda_opts = NULL, *opts;
2299 int optind;
2300 const char *optarg;
2301 const char *loadvm = NULL;
2302 QEMUMachine *machine;
2303 const char *cpu_model;
2304 #ifndef _WIN32
2305 int fds[2];
2306 #endif
2307 int tb_size;
2308 const char *pid_file = NULL;
2309 const char *incoming = NULL;
2310 #ifndef _WIN32
2311 int fd = 0;
2312 const char *chroot_dir = NULL;
2313 #endif
2314 int show_vnc_port = 0;
2315 int defconfig = 1;
2316
2317 error_set_progname(argv[0]);
2318
2319 init_clocks();
2320
2321 qemu_cache_utils_init(envp);
2322
2323 QLIST_INIT (&vm_change_state_head);
2324 os_setup_early_signal_handling();
2325
2326 module_call_init(MODULE_INIT_MACHINE);
2327 machine = find_default_machine();
2328 cpu_model = NULL;
2329 initrd_filename = NULL;
2330 ram_size = 0;
2331 snapshot = 0;
2332 kernel_filename = NULL;
2333 kernel_cmdline = "";
2334 cyls = heads = secs = 0;
2335 translation = BIOS_ATA_TRANSLATION_AUTO;
2336
2337 for (i = 0; i < MAX_NODES; i++) {
2338 node_mem[i] = 0;
2339 node_cpumask[i] = 0;
2340 }
2341
2342 nb_numa_nodes = 0;
2343 nb_nics = 0;
2344
2345 tb_size = 0;
2346 autostart= 1;
2347
2348 /* first pass of option parsing */
2349 optind = 1;
2350 while (optind < argc) {
2351 if (argv[optind][0] != '-') {
2352 /* disk image */
2353 optind++;
2354 continue;
2355 } else {
2356 const QEMUOption *popt;
2357
2358 popt = lookup_opt(argc, argv, &optarg, &optind);
2359 switch (popt->index) {
2360 case QEMU_OPTION_nodefconfig:
2361 defconfig=0;
2362 break;
2363 }
2364 }
2365 }
2366
2367 if (defconfig) {
2368 int ret;
2369
2370 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2371 if (ret < 0 && ret != -ENOENT) {
2372 exit(1);
2373 }
2374
2375 ret = qemu_read_config_file(arch_config_name);
2376 if (ret < 0 && ret != -ENOENT) {
2377 exit(1);
2378 }
2379 }
2380 cpudef_init();
2381
2382 /* second pass of option parsing */
2383 optind = 1;
2384 for(;;) {
2385 if (optind >= argc)
2386 break;
2387 if (argv[optind][0] != '-') {
2388 hda_opts = drive_add(argv[optind++], HD_ALIAS, 0);
2389 } else {
2390 const QEMUOption *popt;
2391
2392 popt = lookup_opt(argc, argv, &optarg, &optind);
2393 if (!(popt->arch_mask & arch_type)) {
2394 printf("Option %s not supported for this target\n", popt->name);
2395 exit(1);
2396 }
2397 switch(popt->index) {
2398 case QEMU_OPTION_M:
2399 machine = find_machine(optarg);
2400 if (!machine) {
2401 QEMUMachine *m;
2402 printf("Supported machines are:\n");
2403 for(m = first_machine; m != NULL; m = m->next) {
2404 if (m->alias)
2405 printf("%-10s %s (alias of %s)\n",
2406 m->alias, m->desc, m->name);
2407 printf("%-10s %s%s\n",
2408 m->name, m->desc,
2409 m->is_default ? " (default)" : "");
2410 }
2411 exit(*optarg != '?');
2412 }
2413 break;
2414 case QEMU_OPTION_cpu:
2415 /* hw initialization will check this */
2416 if (*optarg == '?') {
2417 list_cpus(stdout, &fprintf, optarg);
2418 exit(0);
2419 } else {
2420 cpu_model = optarg;
2421 }
2422 break;
2423 case QEMU_OPTION_initrd:
2424 initrd_filename = optarg;
2425 break;
2426 case QEMU_OPTION_hda:
2427 if (cyls == 0)
2428 hda_opts = drive_add(optarg, HD_ALIAS, 0);
2429 else
2430 hda_opts = drive_add(optarg, HD_ALIAS
2431 ",cyls=%d,heads=%d,secs=%d%s",
2432 0, cyls, heads, secs,
2433 translation == BIOS_ATA_TRANSLATION_LBA ?
2434 ",trans=lba" :
2435 translation == BIOS_ATA_TRANSLATION_NONE ?
2436 ",trans=none" : "");
2437 break;
2438 case QEMU_OPTION_hdb:
2439 case QEMU_OPTION_hdc:
2440 case QEMU_OPTION_hdd:
2441 drive_add(optarg, HD_ALIAS, popt->index - QEMU_OPTION_hda);
2442 break;
2443 case QEMU_OPTION_drive:
2444 drive_add(NULL, "%s", optarg);
2445 break;
2446 case QEMU_OPTION_set:
2447 if (qemu_set_option(optarg) != 0)
2448 exit(1);
2449 break;
2450 case QEMU_OPTION_global:
2451 if (qemu_global_option(optarg) != 0)
2452 exit(1);
2453 break;
2454 case QEMU_OPTION_mtdblock:
2455 drive_add(optarg, MTD_ALIAS);
2456 break;
2457 case QEMU_OPTION_sd:
2458 drive_add(optarg, SD_ALIAS);
2459 break;
2460 case QEMU_OPTION_pflash:
2461 drive_add(optarg, PFLASH_ALIAS);
2462 break;
2463 case QEMU_OPTION_snapshot:
2464 snapshot = 1;
2465 break;
2466 case QEMU_OPTION_hdachs:
2467 {
2468 const char *p;
2469 p = optarg;
2470 cyls = strtol(p, (char **)&p, 0);
2471 if (cyls < 1 || cyls > 16383)
2472 goto chs_fail;
2473 if (*p != ',')
2474 goto chs_fail;
2475 p++;
2476 heads = strtol(p, (char **)&p, 0);
2477 if (heads < 1 || heads > 16)
2478 goto chs_fail;
2479 if (*p != ',')
2480 goto chs_fail;
2481 p++;
2482 secs = strtol(p, (char **)&p, 0);
2483 if (secs < 1 || secs > 63)
2484 goto chs_fail;
2485 if (*p == ',') {
2486 p++;
2487 if (!strcmp(p, "none"))
2488 translation = BIOS_ATA_TRANSLATION_NONE;
2489 else if (!strcmp(p, "lba"))
2490 translation = BIOS_ATA_TRANSLATION_LBA;
2491 else if (!strcmp(p, "auto"))
2492 translation = BIOS_ATA_TRANSLATION_AUTO;
2493 else
2494 goto chs_fail;
2495 } else if (*p != '\0') {
2496 chs_fail:
2497 fprintf(stderr, "qemu: invalid physical CHS format\n");
2498 exit(1);
2499 }
2500 if (hda_opts != NULL) {
2501 char num[16];
2502 snprintf(num, sizeof(num), "%d", cyls);
2503 qemu_opt_set(hda_opts, "cyls", num);
2504 snprintf(num, sizeof(num), "%d", heads);
2505 qemu_opt_set(hda_opts, "heads", num);
2506 snprintf(num, sizeof(num), "%d", secs);
2507 qemu_opt_set(hda_opts, "secs", num);
2508 if (translation == BIOS_ATA_TRANSLATION_LBA)
2509 qemu_opt_set(hda_opts, "trans", "lba");
2510 if (translation == BIOS_ATA_TRANSLATION_NONE)
2511 qemu_opt_set(hda_opts, "trans", "none");
2512 }
2513 }
2514 break;
2515 case QEMU_OPTION_numa:
2516 if (nb_numa_nodes >= MAX_NODES) {
2517 fprintf(stderr, "qemu: too many NUMA nodes\n");
2518 exit(1);
2519 }
2520 numa_add(optarg);
2521 break;
2522 case QEMU_OPTION_nographic:
2523 display_type = DT_NOGRAPHIC;
2524 break;
2525 #ifdef CONFIG_CURSES
2526 case QEMU_OPTION_curses:
2527 display_type = DT_CURSES;
2528 break;
2529 #endif
2530 case QEMU_OPTION_portrait:
2531 graphic_rotate = 1;
2532 break;
2533 case QEMU_OPTION_kernel:
2534 kernel_filename = optarg;
2535 break;
2536 case QEMU_OPTION_append:
2537 kernel_cmdline = optarg;
2538 break;
2539 case QEMU_OPTION_cdrom:
2540 drive_add(optarg, CDROM_ALIAS);
2541 break;
2542 case QEMU_OPTION_boot:
2543 {
2544 static const char * const params[] = {
2545 "order", "once", "menu", NULL
2546 };
2547 char buf[sizeof(boot_devices)];
2548 char *standard_boot_devices;
2549 int legacy = 0;
2550
2551 if (!strchr(optarg, '=')) {
2552 legacy = 1;
2553 pstrcpy(buf, sizeof(buf), optarg);
2554 } else if (check_params(buf, sizeof(buf), params, optarg) < 0) {
2555 fprintf(stderr,
2556 "qemu: unknown boot parameter '%s' in '%s'\n",
2557 buf, optarg);
2558 exit(1);
2559 }
2560
2561 if (legacy ||
2562 get_param_value(buf, sizeof(buf), "order", optarg)) {
2563 validate_bootdevices(buf);
2564 pstrcpy(boot_devices, sizeof(boot_devices), buf);
2565 }
2566 if (!legacy) {
2567 if (get_param_value(buf, sizeof(buf),
2568 "once", optarg)) {
2569 validate_bootdevices(buf);
2570 standard_boot_devices = qemu_strdup(boot_devices);
2571 pstrcpy(boot_devices, sizeof(boot_devices), buf);
2572 qemu_register_reset(restore_boot_devices,
2573 standard_boot_devices);
2574 }
2575 if (get_param_value(buf, sizeof(buf),
2576 "menu", optarg)) {
2577 if (!strcmp(buf, "on")) {
2578 boot_menu = 1;
2579 } else if (!strcmp(buf, "off")) {
2580 boot_menu = 0;
2581 } else {
2582 fprintf(stderr,
2583 "qemu: invalid option value '%s'\n",
2584 buf);
2585 exit(1);
2586 }
2587 }
2588 }
2589 }
2590 break;
2591 case QEMU_OPTION_fda:
2592 case QEMU_OPTION_fdb:
2593 drive_add(optarg, FD_ALIAS, popt->index - QEMU_OPTION_fda);
2594 break;
2595 case QEMU_OPTION_no_fd_bootchk:
2596 fd_bootchk = 0;
2597 break;
2598 case QEMU_OPTION_netdev:
2599 if (net_client_parse(&qemu_netdev_opts, optarg) == -1) {
2600 exit(1);
2601 }
2602 break;
2603 case QEMU_OPTION_net:
2604 if (net_client_parse(&qemu_net_opts, optarg) == -1) {
2605 exit(1);
2606 }
2607 break;
2608 #ifdef CONFIG_SLIRP
2609 case QEMU_OPTION_tftp:
2610 legacy_tftp_prefix = optarg;
2611 break;
2612 case QEMU_OPTION_bootp:
2613 legacy_bootp_filename = optarg;
2614 break;
2615 case QEMU_OPTION_redir:
2616 if (net_slirp_redir(optarg) < 0)
2617 exit(1);
2618 break;
2619 #endif
2620 case QEMU_OPTION_bt:
2621 add_device_config(DEV_BT, optarg);
2622 break;
2623 case QEMU_OPTION_audio_help:
2624 if (!(audio_available())) {
2625 printf("Option %s not supported for this target\n", popt->name);
2626 exit(1);
2627 }
2628 AUD_help ();
2629 exit (0);
2630 break;
2631 case QEMU_OPTION_soundhw:
2632 if (!(audio_available())) {
2633 printf("Option %s not supported for this target\n", popt->name);
2634 exit(1);
2635 }
2636 select_soundhw (optarg);
2637 break;
2638 case QEMU_OPTION_h:
2639 help(0);
2640 break;
2641 case QEMU_OPTION_version:
2642 version();
2643 exit(0);
2644 break;
2645 case QEMU_OPTION_m: {
2646 uint64_t value;
2647 char *ptr;
2648
2649 value = strtoul(optarg, &ptr, 10);
2650 switch (*ptr) {
2651 case 0: case 'M': case 'm':
2652 value <<= 20;
2653 break;
2654 case 'G': case 'g':
2655 value <<= 30;
2656 break;
2657 default:
2658 fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
2659 exit(1);
2660 }
2661
2662 /* On 32-bit hosts, QEMU is limited by virtual address space */
2663 if (value > (2047 << 20) && HOST_LONG_BITS == 32) {
2664 fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
2665 exit(1);
2666 }
2667 if (value != (uint64_t)(ram_addr_t)value) {
2668 fprintf(stderr, "qemu: ram size too large\n");
2669 exit(1);
2670 }
2671 ram_size = value;
2672 break;
2673 }
2674 case QEMU_OPTION_mempath:
2675 mem_path = optarg;
2676 break;
2677 #ifdef MAP_POPULATE
2678 case QEMU_OPTION_mem_prealloc:
2679 mem_prealloc = 1;
2680 break;
2681 #endif
2682 case QEMU_OPTION_d:
2683 set_cpu_log(optarg);
2684 break;
2685 case QEMU_OPTION_s:
2686 gdbstub_dev = "tcp::" DEFAULT_GDBSTUB_PORT;
2687 break;
2688 case QEMU_OPTION_gdb:
2689 gdbstub_dev = optarg;
2690 break;
2691 case QEMU_OPTION_L:
2692 data_dir = optarg;
2693 break;
2694 case QEMU_OPTION_bios:
2695 bios_name = optarg;
2696 break;
2697 case QEMU_OPTION_singlestep:
2698 singlestep = 1;
2699 break;
2700 case QEMU_OPTION_S:
2701 autostart = 0;
2702 break;
2703 case QEMU_OPTION_k:
2704 keyboard_layout = optarg;
2705 break;
2706 case QEMU_OPTION_localtime:
2707 rtc_utc = 0;
2708 break;
2709 case QEMU_OPTION_vga:
2710 select_vgahw (optarg);
2711 break;
2712 case QEMU_OPTION_g:
2713 {
2714 const char *p;
2715 int w, h, depth;
2716 p = optarg;
2717 w = strtol(p, (char **)&p, 10);
2718 if (w <= 0) {
2719 graphic_error:
2720 fprintf(stderr, "qemu: invalid resolution or depth\n");
2721 exit(1);
2722 }
2723 if (*p != 'x')
2724 goto graphic_error;
2725 p++;
2726 h = strtol(p, (char **)&p, 10);
2727 if (h <= 0)
2728 goto graphic_error;
2729 if (*p == 'x') {
2730 p++;
2731 depth = strtol(p, (char **)&p, 10);
2732 if (depth != 8 && depth != 15 && depth != 16 &&
2733 depth != 24 && depth != 32)
2734 goto graphic_error;
2735 } else if (*p == '\0') {
2736 depth = graphic_depth;
2737 } else {
2738 goto graphic_error;
2739 }
2740
2741 graphic_width = w;
2742 graphic_height = h;
2743 graphic_depth = depth;
2744 }
2745 break;
2746 case QEMU_OPTION_echr:
2747 {
2748 char *r;
2749 term_escape_char = strtol(optarg, &r, 0);
2750 if (r == optarg)
2751 printf("Bad argument to echr\n");
2752 break;
2753 }
2754 case QEMU_OPTION_monitor:
2755 monitor_parse(optarg, "readline");
2756 default_monitor = 0;
2757 break;
2758 case QEMU_OPTION_qmp:
2759 monitor_parse(optarg, "control");
2760 default_monitor = 0;
2761 break;
2762 case QEMU_OPTION_mon:
2763 opts = qemu_opts_parse(&qemu_mon_opts, optarg, 1);
2764 if (!opts) {
2765 exit(1);
2766 }
2767 default_monitor = 0;
2768 break;
2769 case QEMU_OPTION_chardev:
2770 opts = qemu_opts_parse(&qemu_chardev_opts, optarg, 1);
2771 if (!opts) {
2772 exit(1);
2773 }
2774 break;
2775 #ifdef CONFIG_LINUX
2776 case QEMU_OPTION_fsdev:
2777 opts = qemu_opts_parse(&qemu_fsdev_opts, optarg, 1);
2778 if (!opts) {
2779 fprintf(stderr, "parse error: %s\n", optarg);
2780 exit(1);
2781 }
2782 break;
2783 case QEMU_OPTION_virtfs: {
2784 char *arg_fsdev = NULL;
2785 char *arg_9p = NULL;
2786 int len = 0;
2787
2788 opts = qemu_opts_parse(&qemu_virtfs_opts, optarg, 1);
2789 if (!opts) {
2790 fprintf(stderr, "parse error: %s\n", optarg);
2791 exit(1);
2792 }
2793
2794 len = strlen(",id=,path=");
2795 len += strlen(qemu_opt_get(opts, "fstype"));
2796 len += strlen(qemu_opt_get(opts, "mount_tag"));
2797 len += strlen(qemu_opt_get(opts, "path"));
2798 arg_fsdev = qemu_malloc((len + 1) * sizeof(*arg_fsdev));
2799
2800 if (!arg_fsdev) {
2801 fprintf(stderr, "No memory to parse -fsdev for %s\n",
2802 optarg);
2803 exit(1);
2804 }
2805
2806 sprintf(arg_fsdev, "%s,id=%s,path=%s",
2807 qemu_opt_get(opts, "fstype"),
2808 qemu_opt_get(opts, "mount_tag"),
2809 qemu_opt_get(opts, "path"));
2810
2811 len = strlen("virtio-9p-pci,fsdev=,mount_tag=");
2812 len += 2*strlen(qemu_opt_get(opts, "mount_tag"));
2813 arg_9p = qemu_malloc((len + 1) * sizeof(*arg_9p));
2814
2815 if (!arg_9p) {
2816 fprintf(stderr, "No memory to parse -device for %s\n",
2817 optarg);
2818 exit(1);
2819 }
2820
2821 sprintf(arg_9p, "virtio-9p-pci,fsdev=%s,mount_tag=%s",
2822 qemu_opt_get(opts, "mount_tag"),
2823 qemu_opt_get(opts, "mount_tag"));
2824
2825 if (!qemu_opts_parse(&qemu_fsdev_opts, arg_fsdev, 1)) {
2826 fprintf(stderr, "parse error [fsdev]: %s\n", optarg);
2827 exit(1);
2828 }
2829
2830 if (!qemu_opts_parse(&qemu_device_opts, arg_9p, 1)) {
2831 fprintf(stderr, "parse error [device]: %s\n", optarg);
2832 exit(1);
2833 }
2834
2835 qemu_free(arg_fsdev);
2836 qemu_free(arg_9p);
2837 break;
2838 }
2839 #endif
2840 case QEMU_OPTION_serial:
2841 add_device_config(DEV_SERIAL, optarg);
2842 default_serial = 0;
2843 if (strncmp(optarg, "mon:", 4) == 0) {
2844 default_monitor = 0;
2845 }
2846 break;
2847 case QEMU_OPTION_watchdog:
2848 if (watchdog) {
2849 fprintf(stderr,
2850 "qemu: only one watchdog option may be given\n");
2851 return 1;
2852 }
2853 watchdog = optarg;
2854 break;
2855 case QEMU_OPTION_watchdog_action:
2856 if (select_watchdog_action(optarg) == -1) {
2857 fprintf(stderr, "Unknown -watchdog-action parameter\n");
2858 exit(1);
2859 }
2860 break;
2861 case QEMU_OPTION_virtiocon:
2862 add_device_config(DEV_VIRTCON, optarg);
2863 default_virtcon = 0;
2864 if (strncmp(optarg, "mon:", 4) == 0) {
2865 default_monitor = 0;
2866 }
2867 break;
2868 case QEMU_OPTION_parallel:
2869 add_device_config(DEV_PARALLEL, optarg);
2870 default_parallel = 0;
2871 if (strncmp(optarg, "mon:", 4) == 0) {
2872 default_monitor = 0;
2873 }
2874 break;
2875 case QEMU_OPTION_debugcon:
2876 add_device_config(DEV_DEBUGCON, optarg);
2877 break;
2878 case QEMU_OPTION_loadvm:
2879 loadvm = optarg;
2880 break;
2881 case QEMU_OPTION_full_screen:
2882 full_screen = 1;
2883 break;
2884 #ifdef CONFIG_SDL
2885 case QEMU_OPTION_no_frame:
2886 no_frame = 1;
2887 break;
2888 case QEMU_OPTION_alt_grab:
2889 alt_grab = 1;
2890 break;
2891 case QEMU_OPTION_ctrl_grab:
2892 ctrl_grab = 1;
2893 break;
2894 case QEMU_OPTION_no_quit:
2895 no_quit = 1;
2896 break;
2897 case QEMU_OPTION_sdl:
2898 display_type = DT_SDL;
2899 break;
2900 #endif
2901 case QEMU_OPTION_pidfile:
2902 pid_file = optarg;
2903 break;
2904 case QEMU_OPTION_win2k_hack:
2905 win2k_install_hack = 1;
2906 break;
2907 case QEMU_OPTION_rtc_td_hack:
2908 rtc_td_hack = 1;
2909 break;
2910 case QEMU_OPTION_acpitable:
2911 do_acpitable_option(optarg);
2912 break;
2913 case QEMU_OPTION_smbios:
2914 do_smbios_option(optarg);
2915 break;
2916 case QEMU_OPTION_enable_kvm:
2917 kvm_allowed = 1;
2918 break;
2919 case QEMU_OPTION_usb:
2920 usb_enabled = 1;
2921 break;
2922 case QEMU_OPTION_usbdevice:
2923 usb_enabled = 1;
2924 add_device_config(DEV_USB, optarg);
2925 break;
2926 case QEMU_OPTION_device:
2927 if (!qemu_opts_parse(&qemu_device_opts, optarg, 1)) {
2928 exit(1);
2929 }
2930 break;
2931 case QEMU_OPTION_smp:
2932 smp_parse(optarg);
2933 if (smp_cpus < 1) {
2934 fprintf(stderr, "Invalid number of CPUs\n");
2935 exit(1);
2936 }
2937 if (max_cpus < smp_cpus) {
2938 fprintf(stderr, "maxcpus must be equal to or greater than "
2939 "smp\n");
2940 exit(1);
2941 }
2942 if (max_cpus > 255) {
2943 fprintf(stderr, "Unsupported number of maxcpus\n");
2944 exit(1);
2945 }
2946 break;
2947 case QEMU_OPTION_vnc:
2948 display_type = DT_VNC;
2949 vnc_display = optarg;
2950 break;
2951 case QEMU_OPTION_no_acpi:
2952 acpi_enabled = 0;
2953 break;
2954 case QEMU_OPTION_no_hpet:
2955 no_hpet = 1;
2956 break;
2957 case QEMU_OPTION_balloon:
2958 if (balloon_parse(optarg) < 0) {
2959 fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
2960 exit(1);
2961 }
2962 break;
2963 case QEMU_OPTION_no_reboot:
2964 no_reboot = 1;
2965 break;
2966 case QEMU_OPTION_no_shutdown:
2967 no_shutdown = 1;
2968 break;
2969 case QEMU_OPTION_show_cursor:
2970 cursor_hide = 0;
2971 break;
2972 case QEMU_OPTION_uuid:
2973 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
2974 fprintf(stderr, "Fail to parse UUID string."
2975 " Wrong format.\n");
2976 exit(1);
2977 }
2978 break;
2979 #ifndef _WIN32
2980 case QEMU_OPTION_daemonize:
2981 daemonize = 1;
2982 break;
2983 #endif
2984 case QEMU_OPTION_option_rom:
2985 if (nb_option_roms >= MAX_OPTION_ROMS) {
2986 fprintf(stderr, "Too many option ROMs\n");
2987 exit(1);
2988 }
2989 option_rom[nb_option_roms] = optarg;
2990 nb_option_roms++;
2991 break;
2992 case QEMU_OPTION_semihosting:
2993 semihosting_enabled = 1;
2994 break;
2995 case QEMU_OPTION_name:
2996 qemu_name = qemu_strdup(optarg);
2997 {
2998 char *p = strchr(qemu_name, ',');
2999 if (p != NULL) {
3000 *p++ = 0;
3001 if (strncmp(p, "process=", 8)) {
3002 fprintf(stderr, "Unknown subargument %s to -name", p);
3003 exit(1);
3004 }
3005 p += 8;
3006 set_proc_name(p);
3007 }
3008 }
3009 break;
3010 case QEMU_OPTION_prom_env:
3011 if (nb_prom_envs >= MAX_PROM_ENVS) {
3012 fprintf(stderr, "Too many prom variables\n");
3013 exit(1);
3014 }
3015 prom_envs[nb_prom_envs] = optarg;
3016 nb_prom_envs++;
3017 break;
3018 case QEMU_OPTION_old_param:
3019 old_param = 1;
3020 break;
3021 case QEMU_OPTION_clock:
3022 configure_alarms(optarg);
3023 break;
3024 case QEMU_OPTION_startdate:
3025 configure_rtc_date_offset(optarg, 1);
3026 break;
3027 case QEMU_OPTION_rtc:
3028 opts = qemu_opts_parse(&qemu_rtc_opts, optarg, 0);
3029 if (!opts) {
3030 exit(1);
3031 }
3032 configure_rtc(opts);
3033 break;
3034 case QEMU_OPTION_tb_size:
3035 tb_size = strtol(optarg, NULL, 0);
3036 if (tb_size < 0)
3037 tb_size = 0;
3038 break;
3039 case QEMU_OPTION_icount:
3040 icount_option = optarg;
3041 break;
3042 case QEMU_OPTION_incoming:
3043 incoming = optarg;
3044 break;
3045 case QEMU_OPTION_nodefaults:
3046 default_serial = 0;
3047 default_parallel = 0;
3048 default_virtcon = 0;
3049 default_monitor = 0;
3050 default_vga = 0;
3051 default_net = 0;
3052 default_floppy = 0;
3053 default_cdrom = 0;
3054 default_sdcard = 0;
3055 break;
3056 #ifndef _WIN32
3057 case QEMU_OPTION_chroot:
3058 chroot_dir = optarg;
3059 break;
3060 #endif
3061 case QEMU_OPTION_xen_domid:
3062 if (!(xen_available())) {
3063 printf("Option %s not supported for this target\n", popt->name);
3064 exit(1);
3065 }
3066 xen_domid = atoi(optarg);
3067 break;
3068 case QEMU_OPTION_xen_create:
3069 if (!(xen_available())) {
3070 printf("Option %s not supported for this target\n", popt->name);
3071 exit(1);
3072 }
3073 xen_mode = XEN_CREATE;
3074 break;
3075 case QEMU_OPTION_xen_attach:
3076 if (!(xen_available())) {
3077 printf("Option %s not supported for this target\n", popt->name);
3078 exit(1);
3079 }
3080 xen_mode = XEN_ATTACH;
3081 break;
3082 case QEMU_OPTION_readconfig:
3083 {
3084 int ret = qemu_read_config_file(optarg);
3085 if (ret < 0) {
3086 fprintf(stderr, "read config %s: %s\n", optarg,
3087 strerror(-ret));
3088 exit(1);
3089 }
3090 break;
3091 }
3092 case QEMU_OPTION_writeconfig:
3093 {
3094 FILE *fp;
3095 if (strcmp(optarg, "-") == 0) {
3096 fp = stdout;
3097 } else {
3098 fp = fopen(optarg, "w");
3099 if (fp == NULL) {
3100 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
3101 exit(1);
3102 }
3103 }
3104 qemu_config_write(fp);
3105 fclose(fp);
3106 break;
3107 }
3108 default:
3109 os_parse_cmd_args(popt->index, optarg);
3110 }
3111 }
3112 }
3113 loc_set_none();
3114
3115 /* If no data_dir is specified then try to find it relative to the
3116 executable path. */
3117 if (!data_dir) {
3118 data_dir = os_find_datadir(argv[0]);
3119 }
3120 /* If all else fails use the install patch specified when building. */
3121 if (!data_dir) {
3122 data_dir = CONFIG_QEMU_DATADIR;
3123 }
3124
3125 /*
3126 * Default to max_cpus = smp_cpus, in case the user doesn't
3127 * specify a max_cpus value.
3128 */
3129 if (!max_cpus)
3130 max_cpus = smp_cpus;
3131
3132 machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
3133 if (smp_cpus > machine->max_cpus) {
3134 fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
3135 "supported by machine `%s' (%d)\n", smp_cpus, machine->name,
3136 machine->max_cpus);
3137 exit(1);
3138 }
3139
3140 qemu_opts_foreach(&qemu_device_opts, default_driver_check, NULL, 0);
3141 qemu_opts_foreach(&qemu_global_opts, default_driver_check, NULL, 0);
3142
3143 if (machine->no_serial) {
3144 default_serial = 0;
3145 }
3146 if (machine->no_parallel) {
3147 default_parallel = 0;
3148 }
3149 if (!machine->use_virtcon) {
3150 default_virtcon = 0;
3151 }
3152 if (machine->no_vga) {
3153 default_vga = 0;
3154 }
3155 if (machine->no_floppy) {
3156 default_floppy = 0;
3157 }
3158 if (machine->no_cdrom) {
3159 default_cdrom = 0;
3160 }
3161 if (machine->no_sdcard) {
3162 default_sdcard = 0;
3163 }
3164
3165 if (display_type == DT_NOGRAPHIC) {
3166 if (default_parallel)
3167 add_device_config(DEV_PARALLEL, "null");
3168 if (default_serial && default_monitor) {
3169 add_device_config(DEV_SERIAL, "mon:stdio");
3170 } else if (default_virtcon && default_monitor) {
3171 add_device_config(DEV_VIRTCON, "mon:stdio");
3172 } else {
3173 if (default_serial)
3174 add_device_config(DEV_SERIAL, "stdio");
3175 if (default_virtcon)
3176 add_device_config(DEV_VIRTCON, "stdio");
3177 if (default_monitor)
3178 monitor_parse("stdio", "readline");
3179 }
3180 } else {
3181 if (default_serial)
3182 add_device_config(DEV_SERIAL, "vc:80Cx24C");
3183 if (default_parallel)
3184 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
3185 if (default_monitor)
3186 monitor_parse("vc:80Cx24C", "readline");
3187 if (default_virtcon)
3188 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
3189 }
3190 if (default_vga)
3191 vga_interface_type = VGA_CIRRUS;
3192
3193 socket_init();
3194
3195 if (qemu_opts_foreach(&qemu_chardev_opts, chardev_init_func, NULL, 1) != 0)
3196 exit(1);
3197 #ifdef CONFIG_LINUX
3198 if (qemu_opts_foreach(&qemu_fsdev_opts, fsdev_init_func, NULL, 1) != 0) {
3199 exit(1);
3200 }
3201 #endif
3202
3203 #ifndef _WIN32
3204 if (daemonize) {
3205 pid_t pid;
3206
3207 if (pipe(fds) == -1)
3208 exit(1);
3209
3210 pid = fork();
3211 if (pid > 0) {
3212 uint8_t status;
3213 ssize_t len;
3214
3215 close(fds[1]);
3216
3217 again:
3218 len = read(fds[0], &status, 1);
3219 if (len == -1 && (errno == EINTR))
3220 goto again;
3221
3222 if (len != 1)
3223 exit(1);
3224 else if (status == 1) {
3225 fprintf(stderr, "Could not acquire pidfile: %s\n", strerror(errno));
3226 exit(1);
3227 } else
3228 exit(0);
3229 } else if (pid < 0)
3230 exit(1);
3231
3232 close(fds[0]);
3233 qemu_set_cloexec(fds[1]);
3234
3235 setsid();
3236
3237 pid = fork();
3238 if (pid > 0)
3239 exit(0);
3240 else if (pid < 0)
3241 exit(1);
3242
3243 umask(027);
3244
3245 signal(SIGTSTP, SIG_IGN);
3246 signal(SIGTTOU, SIG_IGN);
3247 signal(SIGTTIN, SIG_IGN);
3248 }
3249 #endif
3250
3251 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
3252 #ifndef _WIN32
3253 if (daemonize) {
3254 uint8_t status = 1;
3255 if (write(fds[1], &status, 1) != 1) {
3256 perror("daemonize. Writing to pipe\n");
3257 }
3258 } else
3259 #endif
3260 fprintf(stderr, "Could not acquire pid file: %s\n", strerror(errno));
3261 exit(1);
3262 }
3263
3264 if (kvm_allowed) {
3265 int ret = kvm_init(smp_cpus);
3266 if (ret < 0) {
3267 if (!kvm_available()) {
3268 printf("KVM not supported for this target\n");
3269 } else {
3270 fprintf(stderr, "failed to initialize KVM: %s\n", strerror(-ret));
3271 }
3272 exit(1);
3273 }
3274 }
3275
3276 if (qemu_init_main_loop()) {
3277 fprintf(stderr, "qemu_init_main_loop failed\n");
3278 exit(1);
3279 }
3280 linux_boot = (kernel_filename != NULL);
3281
3282 if (!linux_boot && *kernel_cmdline != '\0') {
3283 fprintf(stderr, "-append only allowed with -kernel option\n");
3284 exit(1);
3285 }
3286
3287 if (!linux_boot && initrd_filename != NULL) {
3288 fprintf(stderr, "-initrd only allowed with -kernel option\n");
3289 exit(1);
3290 }
3291
3292 #ifndef _WIN32
3293 /* Win32 doesn't support line-buffering and requires size >= 2 */
3294 setvbuf(stdout, NULL, _IOLBF, 0);
3295 #endif
3296
3297 if (init_timer_alarm() < 0) {
3298 fprintf(stderr, "could not initialize alarm timer\n");
3299 exit(1);
3300 }
3301 configure_icount(icount_option);
3302
3303 if (net_init_clients() < 0) {
3304 exit(1);
3305 }
3306
3307 /* init the bluetooth world */
3308 if (foreach_device_config(DEV_BT, bt_parse))
3309 exit(1);
3310
3311 /* init the memory */
3312 if (ram_size == 0)
3313 ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
3314
3315 /* init the dynamic translator */
3316 cpu_exec_init_all(tb_size * 1024 * 1024);
3317
3318 bdrv_init_with_whitelist();
3319
3320 blk_mig_init();
3321
3322 if (default_cdrom) {
3323 /* we always create the cdrom drive, even if no disk is there */
3324 drive_add(NULL, CDROM_ALIAS);
3325 }
3326
3327 if (default_floppy) {
3328 /* we always create at least one floppy */
3329 drive_add(NULL, FD_ALIAS, 0);
3330 }
3331
3332 if (default_sdcard) {
3333 /* we always create one sd slot, even if no card is in it */
3334 drive_add(NULL, SD_ALIAS);
3335 }
3336
3337 /* open the virtual block devices */
3338 if (snapshot)
3339 qemu_opts_foreach(&qemu_drive_opts, drive_enable_snapshot, NULL, 0);
3340 if (qemu_opts_foreach(&qemu_drive_opts, drive_init_func, machine, 1) != 0)
3341 exit(1);
3342
3343 register_savevm_live("ram", 0, 3, NULL, ram_save_live, NULL,
3344 ram_load, NULL);
3345
3346 if (nb_numa_nodes > 0) {
3347 int i;
3348
3349 if (nb_numa_nodes > smp_cpus) {
3350 nb_numa_nodes = smp_cpus;
3351 }
3352
3353 /* If no memory size if given for any node, assume the default case
3354 * and distribute the available memory equally across all nodes
3355 */
3356 for (i = 0; i < nb_numa_nodes; i++) {
3357 if (node_mem[i] != 0)
3358 break;
3359 }
3360 if (i == nb_numa_nodes) {
3361 uint64_t usedmem = 0;
3362
3363 /* On Linux, the each node's border has to be 8MB aligned,
3364 * the final node gets the rest.
3365 */
3366 for (i = 0; i < nb_numa_nodes - 1; i++) {
3367 node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1);
3368 usedmem += node_mem[i];
3369 }
3370 node_mem[i] = ram_size - usedmem;
3371 }
3372
3373 for (i = 0; i < nb_numa_nodes; i++) {
3374 if (node_cpumask[i] != 0)
3375 break;
3376 }
3377 /* assigning the VCPUs round-robin is easier to implement, guest OSes
3378 * must cope with this anyway, because there are BIOSes out there in
3379 * real machines which also use this scheme.
3380 */
3381 if (i == nb_numa_nodes) {
3382 for (i = 0; i < smp_cpus; i++) {
3383 node_cpumask[i % nb_numa_nodes] |= 1 << i;
3384 }
3385 }
3386 }
3387
3388 if (qemu_opts_foreach(&qemu_mon_opts, mon_init_func, NULL, 1) != 0) {
3389 exit(1);
3390 }
3391
3392 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
3393 exit(1);
3394 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
3395 exit(1);
3396 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
3397 exit(1);
3398 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
3399 exit(1);
3400
3401 module_call_init(MODULE_INIT_DEVICE);
3402
3403 if (qemu_opts_foreach(&qemu_device_opts, device_help_func, NULL, 0) != 0)
3404 exit(0);
3405
3406 if (watchdog) {
3407 i = select_watchdog(watchdog);
3408 if (i > 0)
3409 exit (i == 1 ? 1 : 0);
3410 }
3411
3412 if (machine->compat_props) {
3413 qdev_prop_register_global_list(machine->compat_props);
3414 }
3415 qemu_add_globals();
3416
3417 machine->init(ram_size, boot_devices,
3418 kernel_filename, kernel_cmdline, initrd_filename, cpu_model);
3419
3420 cpu_synchronize_all_post_init();
3421
3422 /* must be after terminal init, SDL library changes signal handlers */
3423 os_setup_signal_handling();
3424
3425 set_numa_modes();
3426
3427 current_machine = machine;
3428
3429 /* init USB devices */
3430 if (usb_enabled) {
3431 if (foreach_device_config(DEV_USB, usb_parse) < 0)
3432 exit(1);
3433 }
3434
3435 /* init generic devices */
3436 if (qemu_opts_foreach(&qemu_device_opts, device_init_func, NULL, 1) != 0)
3437 exit(1);
3438
3439 net_check_clients();
3440
3441 /* just use the first displaystate for the moment */
3442 ds = get_displaystate();
3443
3444 if (display_type == DT_DEFAULT) {
3445 #if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
3446 display_type = DT_SDL;
3447 #else
3448 display_type = DT_VNC;
3449 vnc_display = "localhost:0,to=99";
3450 show_vnc_port = 1;
3451 #endif
3452 }
3453
3454
3455 switch (display_type) {
3456 case DT_NOGRAPHIC:
3457 break;
3458 #if defined(CONFIG_CURSES)
3459 case DT_CURSES:
3460 curses_display_init(ds, full_screen);
3461 break;
3462 #endif
3463 #if defined(CONFIG_SDL)
3464 case DT_SDL:
3465 sdl_display_init(ds, full_screen, no_frame);
3466 break;
3467 #elif defined(CONFIG_COCOA)
3468 case DT_SDL:
3469 cocoa_display_init(ds, full_screen);
3470 break;
3471 #endif
3472 case DT_VNC:
3473 vnc_display_init(ds);
3474 if (vnc_display_open(ds, vnc_display) < 0)
3475 exit(1);
3476
3477 if (show_vnc_port) {
3478 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
3479 }
3480 break;
3481 default:
3482 break;
3483 }
3484 dpy_resize(ds);
3485
3486 dcl = ds->listeners;
3487 while (dcl != NULL) {
3488 if (dcl->dpy_refresh != NULL) {
3489 ds->gui_timer = qemu_new_timer(rt_clock, gui_update, ds);
3490 qemu_mod_timer(ds->gui_timer, qemu_get_clock(rt_clock));
3491 break;
3492 }
3493 dcl = dcl->next;
3494 }
3495
3496 if (display_type == DT_NOGRAPHIC || display_type == DT_VNC) {
3497 nographic_timer = qemu_new_timer(rt_clock, nographic_update, NULL);
3498 qemu_mod_timer(nographic_timer, qemu_get_clock(rt_clock));
3499 }
3500
3501 text_consoles_set_display(ds);
3502
3503 if (gdbstub_dev && gdbserver_start(gdbstub_dev) < 0) {
3504 fprintf(stderr, "qemu: could not open gdbserver on device '%s'\n",
3505 gdbstub_dev);
3506 exit(1);
3507 }
3508
3509 qdev_machine_creation_done();
3510
3511 if (rom_load_all() != 0) {
3512 fprintf(stderr, "rom loading failed\n");
3513 exit(1);
3514 }
3515
3516 qemu_system_reset();
3517 if (loadvm) {
3518 if (load_vmstate(loadvm) < 0) {
3519 autostart = 0;
3520 }
3521 }
3522
3523 if (incoming) {
3524 qemu_start_incoming_migration(incoming);
3525 } else if (autostart) {
3526 vm_start();
3527 }
3528
3529 #ifndef _WIN32
3530 if (daemonize) {
3531 uint8_t status = 0;
3532 ssize_t len;
3533
3534 again1:
3535 len = write(fds[1], &status, 1);
3536 if (len == -1 && (errno == EINTR))
3537 goto again1;
3538
3539 if (len != 1)
3540 exit(1);
3541
3542 if (chdir("/")) {
3543 perror("not able to chdir to /");
3544 exit(1);
3545 }
3546 TFR(fd = qemu_open("/dev/null", O_RDWR));
3547 if (fd == -1)
3548 exit(1);
3549 }
3550
3551 if (chroot_dir) {
3552 if (chroot(chroot_dir) < 0) {
3553 fprintf(stderr, "chroot failed\n");
3554 exit(1);
3555 }
3556 if (chdir("/")) {
3557 perror("not able to chdir to /");
3558 exit(1);
3559 }
3560 }
3561
3562 os_change_process_uid();
3563
3564 if (daemonize) {
3565 dup2(fd, 0);
3566 dup2(fd, 1);
3567 dup2(fd, 2);
3568
3569 close(fd);
3570 }
3571 #endif
3572
3573 main_loop();
3574 quit_timers();
3575 net_cleanup();
3576
3577 return 0;
3578 }
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