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