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Make -acpi-enable a machine specific option
[qemu/aliguori-queue.git] / vl.c
blob96b8d358c1cde8f5dcac3c542ca32ba1a3579925
1 /*
2 * QEMU System Emulator
3 *
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24 #include <unistd.h>
25 #include <fcntl.h>
26 #include <signal.h>
27 #include <time.h>
28 #include <errno.h>
29 #include <sys/time.h>
30 #include <zlib.h>
31
32 /* Needed early for CONFIG_BSD etc. */
33 #include "config-host.h"
34
35 #ifndef _WIN32
36 #include <libgen.h>
37 #include <pwd.h>
38 #include <sys/times.h>
39 #include <sys/wait.h>
40 #include <termios.h>
41 #include <sys/mman.h>
42 #include <sys/ioctl.h>
43 #include <sys/resource.h>
44 #include <sys/socket.h>
45 #include <netinet/in.h>
46 #include <net/if.h>
47 #include <arpa/inet.h>
48 #include <dirent.h>
49 #include <netdb.h>
50 #include <sys/select.h>
51 #ifdef CONFIG_BSD
52 #include <sys/stat.h>
53 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
54 #include <libutil.h>
55 #include <sys/sysctl.h>
56 #else
57 #include <util.h>
58 #endif
59 #else
60 #ifdef __linux__
61 #include <pty.h>
62 #include <malloc.h>
63 #include <sys/prctl.h>
64
65 #include <linux/ppdev.h>
66 #include <linux/parport.h>
67 #endif
68 #ifdef __sun__
69 #include <sys/stat.h>
70 #include <sys/ethernet.h>
71 #include <sys/sockio.h>
72 #include <netinet/arp.h>
73 #include <netinet/in.h>
74 #include <netinet/in_systm.h>
75 #include <netinet/ip.h>
76 #include <netinet/ip_icmp.h> // must come after ip.h
77 #include <netinet/udp.h>
78 #include <netinet/tcp.h>
79 #include <net/if.h>
80 #include <syslog.h>
81 #include <stropts.h>
82 /* See MySQL bug #7156 (http://bugs.mysql.com/bug.php?id=7156) for
83 discussion about Solaris header problems */
84 extern int madvise(caddr_t, size_t, int);
85 #endif
86 #endif
87 #endif
88
89 #if defined(__OpenBSD__)
90 #include <util.h>
91 #endif
92
93 #if defined(CONFIG_VDE)
94 #include <libvdeplug.h>
95 #endif
96
97 #ifdef _WIN32
98 #include <windows.h>
99 #endif
100
101 #ifdef CONFIG_SDL
102 #if defined(__APPLE__) || defined(main)
103 #include <SDL.h>
104 int qemu_main(int argc, char **argv, char **envp);
105 int main(int argc, char **argv)
106 {
107 return qemu_main(argc, argv, NULL);
108 }
109 #undef main
110 #define main qemu_main
111 #endif
112 #endif /* CONFIG_SDL */
113
114 #ifdef CONFIG_COCOA
115 #undef main
116 #define main qemu_main
117 #endif /* CONFIG_COCOA */
118
119 #include "hw/hw.h"
120 #include "hw/boards.h"
121 #include "hw/usb.h"
122 #include "hw/pcmcia.h"
123 #include "hw/pc.h"
124 #include "hw/isa.h"
125 #include "hw/baum.h"
126 #include "hw/bt.h"
127 #include "hw/watchdog.h"
128 #include "hw/smbios.h"
129 #include "hw/xen.h"
130 #include "hw/qdev.h"
131 #include "hw/loader.h"
132 #include "bt-host.h"
133 #include "net.h"
134 #include "net/slirp.h"
135 #include "monitor.h"
136 #include "console.h"
137 #include "sysemu.h"
138 #include "gdbstub.h"
139 #include "qemu-timer.h"
140 #include "qemu-char.h"
141 #include "cache-utils.h"
142 #include "block.h"
143 #include "block_int.h"
144 #include "block-migration.h"
145 #include "dma.h"
146 #include "audio/audio.h"
147 #include "migration.h"
148 #include "kvm.h"
149 #include "qemu-option.h"
150 #include "qemu-config.h"
151 #include "qemu-objects.h"
152 #ifdef CONFIG_LINUX
153 #include "fsdev/qemu-fsdev.h"
154 #endif
155
156 #include "disas.h"
157
158 #include "qemu_socket.h"
159
160 #include "slirp/libslirp.h"
161
162 #include "qemu-queue.h"
163 #include "cpus.h"
164 #include "arch_init.h"
165
166 //#define DEBUG_NET
167 //#define DEBUG_SLIRP
168
169 #define DEFAULT_RAM_SIZE 128
170
171 #define MAX_VIRTIO_CONSOLES 1
172
173 static const char *data_dir;
174 const char *bios_name = NULL;
175 /* Note: drives_table[MAX_DRIVES] is a dummy block driver if none available
176 to store the VM snapshots */
177 struct drivelist drives = QTAILQ_HEAD_INITIALIZER(drives);
178 struct driveoptlist driveopts = QTAILQ_HEAD_INITIALIZER(driveopts);
179 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
180 DisplayType display_type = DT_DEFAULT;
181 const char* keyboard_layout = NULL;
182 ram_addr_t ram_size;
183 const char *mem_path = NULL;
184 #ifdef MAP_POPULATE
185 int mem_prealloc = 0; /* force preallocation of physical target memory */
186 #endif
187 int nb_nics;
188 NICInfo nd_table[MAX_NICS];
189 int vm_running;
190 int autostart;
191 static int rtc_utc = 1;
192 static int rtc_date_offset = -1; /* -1 means no change */
193 QEMUClock *rtc_clock;
194 int vga_interface_type = VGA_NONE;
195 static int full_screen = 0;
196 #ifdef CONFIG_SDL
197 static int no_frame = 0;
198 #endif
199 int no_quit = 0;
200 CharDriverState *serial_hds[MAX_SERIAL_PORTS];
201 CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
202 CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES];
203 int win2k_install_hack = 0;
204 int rtc_td_hack = 0;
205 int usb_enabled = 0;
206 int singlestep = 0;
207 int smp_cpus = 1;
208 int max_cpus = 0;
209 int smp_cores = 1;
210 int smp_threads = 1;
211 const char *vnc_display;
212 static int acpi_enabled = 1;
213 int no_hpet = 0;
214 int fd_bootchk = 1;
215 int no_reboot = 0;
216 int no_shutdown = 0;
217 int cursor_hide = 1;
218 int graphic_rotate = 0;
219 uint8_t irq0override = 1;
220 #ifndef _WIN32
221 int daemonize = 0;
222 #endif
223 const char *watchdog;
224 const char *option_rom[MAX_OPTION_ROMS];
225 int nb_option_roms;
226 int semihosting_enabled = 0;
227 int old_param = 0;
228 const char *qemu_name;
229 int alt_grab = 0;
230 int ctrl_grab = 0;
231 unsigned int nb_prom_envs = 0;
232 const char *prom_envs[MAX_PROM_ENVS];
233 int boot_menu;
234
235 int nb_numa_nodes;
236 uint64_t node_mem[MAX_NODES];
237 uint64_t node_cpumask[MAX_NODES];
238
239 static QEMUTimer *nographic_timer;
240
241 uint8_t qemu_uuid[16];
242
243 static QEMUBootSetHandler *boot_set_handler;
244 static void *boot_set_opaque;
245
246 int kvm_allowed = 0;
247 uint32_t xen_domid;
248 enum xen_mode xen_mode = XEN_EMULATE;
249
250 static int default_serial = 1;
251 static int default_parallel = 1;
252 static int default_virtcon = 1;
253 static int default_monitor = 1;
254 static int default_vga = 1;
255 static int default_floppy = 1;
256 static int default_cdrom = 1;
257 static int default_sdcard = 1;
258
259 static struct {
260 const char *driver;
261 int *flag;
262 } default_list[] = {
263 { .driver = "isa-serial", .flag = &default_serial },
264 { .driver = "isa-parallel", .flag = &default_parallel },
265 { .driver = "isa-fdc", .flag = &default_floppy },
266 { .driver = "ide-drive", .flag = &default_cdrom },
267 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
268 { .driver = "virtio-serial-s390", .flag = &default_virtcon },
269 { .driver = "virtio-serial", .flag = &default_virtcon },
270 { .driver = "VGA", .flag = &default_vga },
271 { .driver = "cirrus-vga", .flag = &default_vga },
272 { .driver = "vmware-svga", .flag = &default_vga },
273 };
274
275 static int default_driver_check(QemuOpts *opts, void *opaque)
276 {
277 const char *driver = qemu_opt_get(opts, "driver");
278 int i;
279
280 if (!driver)
281 return 0;
282 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
283 if (strcmp(default_list[i].driver, driver) != 0)
284 continue;
285 *(default_list[i].flag) = 0;
286 }
287 return 0;
288 }
289
290 /***********************************************************/
291
292 static void set_proc_name(const char *s)
293 {
294 #if defined(__linux__) && defined(PR_SET_NAME)
295 char name[16];
296 if (!s)
297 return;
298 name[sizeof(name) - 1] = 0;
299 strncpy(name, s, sizeof(name));
300 /* Could rewrite argv[0] too, but that's a bit more complicated.
301 This simple way is enough for `top'. */
302 prctl(PR_SET_NAME, name);
303 #endif
304 }
305
306 /***********************************************************/
307 /* real time host monotonic timer */
308
309 /* compute with 96 bit intermediate result: (a*b)/c */
310 uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
311 {
312 union {
313 uint64_t ll;
314 struct {
315 #ifdef HOST_WORDS_BIGENDIAN
316 uint32_t high, low;
317 #else
318 uint32_t low, high;
319 #endif
320 } l;
321 } u, res;
322 uint64_t rl, rh;
323
324 u.ll = a;
325 rl = (uint64_t)u.l.low * (uint64_t)b;
326 rh = (uint64_t)u.l.high * (uint64_t)b;
327 rh += (rl >> 32);
328 res.l.high = rh / c;
329 res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
330 return res.ll;
331 }
332
333 /***********************************************************/
334 /* host time/date access */
335 void qemu_get_timedate(struct tm *tm, int offset)
336 {
337 time_t ti;
338 struct tm *ret;
339
340 time(&ti);
341 ti += offset;
342 if (rtc_date_offset == -1) {
343 if (rtc_utc)
344 ret = gmtime(&ti);
345 else
346 ret = localtime(&ti);
347 } else {
348 ti -= rtc_date_offset;
349 ret = gmtime(&ti);
350 }
351
352 memcpy(tm, ret, sizeof(struct tm));
353 }
354
355 int qemu_timedate_diff(struct tm *tm)
356 {
357 time_t seconds;
358
359 if (rtc_date_offset == -1)
360 if (rtc_utc)
361 seconds = mktimegm(tm);
362 else
363 seconds = mktime(tm);
364 else
365 seconds = mktimegm(tm) + rtc_date_offset;
366
367 return seconds - time(NULL);
368 }
369
370 void rtc_change_mon_event(struct tm *tm)
371 {
372 QObject *data;
373
374 data = qobject_from_jsonf("{ 'offset': %d }", qemu_timedate_diff(tm));
375 monitor_protocol_event(QEVENT_RTC_CHANGE, data);
376 qobject_decref(data);
377 }
378
379 static void configure_rtc_date_offset(const char *startdate, int legacy)
380 {
381 time_t rtc_start_date;
382 struct tm tm;
383
384 if (!strcmp(startdate, "now") && legacy) {
385 rtc_date_offset = -1;
386 } else {
387 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
388 &tm.tm_year,
389 &tm.tm_mon,
390 &tm.tm_mday,
391 &tm.tm_hour,
392 &tm.tm_min,
393 &tm.tm_sec) == 6) {
394 /* OK */
395 } else if (sscanf(startdate, "%d-%d-%d",
396 &tm.tm_year,
397 &tm.tm_mon,
398 &tm.tm_mday) == 3) {
399 tm.tm_hour = 0;
400 tm.tm_min = 0;
401 tm.tm_sec = 0;
402 } else {
403 goto date_fail;
404 }
405 tm.tm_year -= 1900;
406 tm.tm_mon--;
407 rtc_start_date = mktimegm(&tm);
408 if (rtc_start_date == -1) {
409 date_fail:
410 fprintf(stderr, "Invalid date format. Valid formats are:\n"
411 "'2006-06-17T16:01:21' or '2006-06-17'\n");
412 exit(1);
413 }
414 rtc_date_offset = time(NULL) - rtc_start_date;
415 }
416 }
417
418 static void configure_rtc(QemuOpts *opts)
419 {
420 const char *value;
421
422 value = qemu_opt_get(opts, "base");
423 if (value) {
424 if (!strcmp(value, "utc")) {
425 rtc_utc = 1;
426 } else if (!strcmp(value, "localtime")) {
427 rtc_utc = 0;
428 } else {
429 configure_rtc_date_offset(value, 0);
430 }
431 }
432 value = qemu_opt_get(opts, "clock");
433 if (value) {
434 if (!strcmp(value, "host")) {
435 rtc_clock = host_clock;
436 } else if (!strcmp(value, "vm")) {
437 rtc_clock = vm_clock;
438 } else {
439 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
440 exit(1);
441 }
442 }
443 value = qemu_opt_get(opts, "driftfix");
444 if (value) {
445 if (!strcmp(value, "slew")) {
446 rtc_td_hack = 1;
447 } else if (!strcmp(value, "none")) {
448 rtc_td_hack = 0;
449 } else {
450 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
451 exit(1);
452 }
453 }
454 }
455
456 /***********************************************************/
457 /* Bluetooth support */
458 static int nb_hcis;
459 static int cur_hci;
460 static struct HCIInfo *hci_table[MAX_NICS];
461
462 static struct bt_vlan_s {
463 struct bt_scatternet_s net;
464 int id;
465 struct bt_vlan_s *next;
466 } *first_bt_vlan;
467
468 /* find or alloc a new bluetooth "VLAN" */
469 static struct bt_scatternet_s *qemu_find_bt_vlan(int id)
470 {
471 struct bt_vlan_s **pvlan, *vlan;
472 for (vlan = first_bt_vlan; vlan != NULL; vlan = vlan->next) {
473 if (vlan->id == id)
474 return &vlan->net;
475 }
476 vlan = qemu_mallocz(sizeof(struct bt_vlan_s));
477 vlan->id = id;
478 pvlan = &first_bt_vlan;
479 while (*pvlan != NULL)
480 pvlan = &(*pvlan)->next;
481 *pvlan = vlan;
482 return &vlan->net;
483 }
484
485 static void null_hci_send(struct HCIInfo *hci, const uint8_t *data, int len)
486 {
487 }
488
489 static int null_hci_addr_set(struct HCIInfo *hci, const uint8_t *bd_addr)
490 {
491 return -ENOTSUP;
492 }
493
494 static struct HCIInfo null_hci = {
495 .cmd_send = null_hci_send,
496 .sco_send = null_hci_send,
497 .acl_send = null_hci_send,
498 .bdaddr_set = null_hci_addr_set,
499 };
500
501 struct HCIInfo *qemu_next_hci(void)
502 {
503 if (cur_hci == nb_hcis)
504 return &null_hci;
505
506 return hci_table[cur_hci++];
507 }
508
509 static struct HCIInfo *hci_init(const char *str)
510 {
511 char *endp;
512 struct bt_scatternet_s *vlan = 0;
513
514 if (!strcmp(str, "null"))
515 /* null */
516 return &null_hci;
517 else if (!strncmp(str, "host", 4) && (str[4] == '\0' || str[4] == ':'))
518 /* host[:hciN] */
519 return bt_host_hci(str[4] ? str + 5 : "hci0");
520 else if (!strncmp(str, "hci", 3)) {
521 /* hci[,vlan=n] */
522 if (str[3]) {
523 if (!strncmp(str + 3, ",vlan=", 6)) {
524 vlan = qemu_find_bt_vlan(strtol(str + 9, &endp, 0));
525 if (*endp)
526 vlan = 0;
527 }
528 } else
529 vlan = qemu_find_bt_vlan(0);
530 if (vlan)
531 return bt_new_hci(vlan);
532 }
533
534 fprintf(stderr, "qemu: Unknown bluetooth HCI `%s'.\n", str);
535
536 return 0;
537 }
538
539 static int bt_hci_parse(const char *str)
540 {
541 struct HCIInfo *hci;
542 bdaddr_t bdaddr;
543
544 if (nb_hcis >= MAX_NICS) {
545 fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
546 return -1;
547 }
548
549 hci = hci_init(str);
550 if (!hci)
551 return -1;
552
553 bdaddr.b[0] = 0x52;
554 bdaddr.b[1] = 0x54;
555 bdaddr.b[2] = 0x00;
556 bdaddr.b[3] = 0x12;
557 bdaddr.b[4] = 0x34;
558 bdaddr.b[5] = 0x56 + nb_hcis;
559 hci->bdaddr_set(hci, bdaddr.b);
560
561 hci_table[nb_hcis++] = hci;
562
563 return 0;
564 }
565
566 static void bt_vhci_add(int vlan_id)
567 {
568 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
569
570 if (!vlan->slave)
571 fprintf(stderr, "qemu: warning: adding a VHCI to "
572 "an empty scatternet %i\n", vlan_id);
573
574 bt_vhci_init(bt_new_hci(vlan));
575 }
576
577 static struct bt_device_s *bt_device_add(const char *opt)
578 {
579 struct bt_scatternet_s *vlan;
580 int vlan_id = 0;
581 char *endp = strstr(opt, ",vlan=");
582 int len = (endp ? endp - opt : strlen(opt)) + 1;
583 char devname[10];
584
585 pstrcpy(devname, MIN(sizeof(devname), len), opt);
586
587 if (endp) {
588 vlan_id = strtol(endp + 6, &endp, 0);
589 if (*endp) {
590 fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
591 return 0;
592 }
593 }
594
595 vlan = qemu_find_bt_vlan(vlan_id);
596
597 if (!vlan->slave)
598 fprintf(stderr, "qemu: warning: adding a slave device to "
599 "an empty scatternet %i\n", vlan_id);
600
601 if (!strcmp(devname, "keyboard"))
602 return bt_keyboard_init(vlan);
603
604 fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
605 return 0;
606 }
607
608 static int bt_parse(const char *opt)
609 {
610 const char *endp, *p;
611 int vlan;
612
613 if (strstart(opt, "hci", &endp)) {
614 if (!*endp || *endp == ',') {
615 if (*endp)
616 if (!strstart(endp, ",vlan=", 0))
617 opt = endp + 1;
618
619 return bt_hci_parse(opt);
620 }
621 } else if (strstart(opt, "vhci", &endp)) {
622 if (!*endp || *endp == ',') {
623 if (*endp) {
624 if (strstart(endp, ",vlan=", &p)) {
625 vlan = strtol(p, (char **) &endp, 0);
626 if (*endp) {
627 fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
628 return 1;
629 }
630 } else {
631 fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1);
632 return 1;
633 }
634 } else
635 vlan = 0;
636
637 bt_vhci_add(vlan);
638 return 0;
639 }
640 } else if (strstart(opt, "device:", &endp))
641 return !bt_device_add(endp);
642
643 fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
644 return 1;
645 }
646
647 /***********************************************************/
648 /* QEMU Block devices */
649
650 #define HD_ALIAS "index=%d,media=disk"
651 #define CDROM_ALIAS "index=2,media=cdrom"
652 #define FD_ALIAS "index=%d,if=floppy"
653 #define PFLASH_ALIAS "if=pflash"
654 #define MTD_ALIAS "if=mtd"
655 #define SD_ALIAS "index=0,if=sd"
656
657 QemuOpts *drive_add(const char *file, const char *fmt, ...)
658 {
659 va_list ap;
660 char optstr[1024];
661 QemuOpts *opts;
662
663 va_start(ap, fmt);
664 vsnprintf(optstr, sizeof(optstr), fmt, ap);
665 va_end(ap);
666
667 opts = qemu_opts_parse(&qemu_drive_opts, optstr, 0);
668 if (!opts) {
669 return NULL;
670 }
671 if (file)
672 qemu_opt_set(opts, "file", file);
673 return opts;
674 }
675
676 DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit)
677 {
678 DriveInfo *dinfo;
679
680 /* seek interface, bus and unit */
681
682 QTAILQ_FOREACH(dinfo, &drives, next) {
683 if (dinfo->type == type &&
684 dinfo->bus == bus &&
685 dinfo->unit == unit)
686 return dinfo;
687 }
688
689 return NULL;
690 }
691
692 DriveInfo *drive_get_by_id(const char *id)
693 {
694 DriveInfo *dinfo;
695
696 QTAILQ_FOREACH(dinfo, &drives, next) {
697 if (strcmp(id, dinfo->id))
698 continue;
699 return dinfo;
700 }
701 return NULL;
702 }
703
704 int drive_get_max_bus(BlockInterfaceType type)
705 {
706 int max_bus;
707 DriveInfo *dinfo;
708
709 max_bus = -1;
710 QTAILQ_FOREACH(dinfo, &drives, next) {
711 if(dinfo->type == type &&
712 dinfo->bus > max_bus)
713 max_bus = dinfo->bus;
714 }
715 return max_bus;
716 }
717
718 const char *drive_get_serial(BlockDriverState *bdrv)
719 {
720 DriveInfo *dinfo;
721
722 QTAILQ_FOREACH(dinfo, &drives, next) {
723 if (dinfo->bdrv == bdrv)
724 return dinfo->serial;
725 }
726
727 return "\0";
728 }
729
730 BlockInterfaceErrorAction drive_get_on_error(
731 BlockDriverState *bdrv, int is_read)
732 {
733 DriveInfo *dinfo;
734
735 QTAILQ_FOREACH(dinfo, &drives, next) {
736 if (dinfo->bdrv == bdrv)
737 return is_read ? dinfo->on_read_error : dinfo->on_write_error;
738 }
739
740 return is_read ? BLOCK_ERR_REPORT : BLOCK_ERR_STOP_ENOSPC;
741 }
742
743 static void bdrv_format_print(void *opaque, const char *name)
744 {
745 fprintf(stderr, " %s", name);
746 }
747
748 void drive_uninit(DriveInfo *dinfo)
749 {
750 qemu_opts_del(dinfo->opts);
751 bdrv_delete(dinfo->bdrv);
752 QTAILQ_REMOVE(&drives, dinfo, next);
753 qemu_free(dinfo);
754 }
755
756 static int parse_block_error_action(const char *buf, int is_read)
757 {
758 if (!strcmp(buf, "ignore")) {
759 return BLOCK_ERR_IGNORE;
760 } else if (!is_read && !strcmp(buf, "enospc")) {
761 return BLOCK_ERR_STOP_ENOSPC;
762 } else if (!strcmp(buf, "stop")) {
763 return BLOCK_ERR_STOP_ANY;
764 } else if (!strcmp(buf, "report")) {
765 return BLOCK_ERR_REPORT;
766 } else {
767 fprintf(stderr, "qemu: '%s' invalid %s error action\n",
768 buf, is_read ? "read" : "write");
769 return -1;
770 }
771 }
772
773 DriveInfo *drive_init(QemuOpts *opts, void *opaque,
774 int *fatal_error)
775 {
776 const char *buf;
777 const char *file = NULL;
778 char devname[128];
779 const char *serial;
780 const char *mediastr = "";
781 BlockInterfaceType type;
782 enum { MEDIA_DISK, MEDIA_CDROM } media;
783 int bus_id, unit_id;
784 int cyls, heads, secs, translation;
785 BlockDriver *drv = NULL;
786 QEMUMachine *machine = opaque;
787 int max_devs;
788 int index;
789 int ro = 0;
790 int bdrv_flags = 0;
791 int on_read_error, on_write_error;
792 const char *devaddr;
793 DriveInfo *dinfo;
794 int snapshot = 0;
795
796 *fatal_error = 1;
797
798 translation = BIOS_ATA_TRANSLATION_AUTO;
799
800 if (machine && machine->use_scsi) {
801 type = IF_SCSI;
802 max_devs = MAX_SCSI_DEVS;
803 pstrcpy(devname, sizeof(devname), "scsi");
804 } else {
805 type = IF_IDE;
806 max_devs = MAX_IDE_DEVS;
807 pstrcpy(devname, sizeof(devname), "ide");
808 }
809 media = MEDIA_DISK;
810
811 /* extract parameters */
812 bus_id = qemu_opt_get_number(opts, "bus", 0);
813 unit_id = qemu_opt_get_number(opts, "unit", -1);
814 index = qemu_opt_get_number(opts, "index", -1);
815
816 cyls = qemu_opt_get_number(opts, "cyls", 0);
817 heads = qemu_opt_get_number(opts, "heads", 0);
818 secs = qemu_opt_get_number(opts, "secs", 0);
819
820 snapshot = qemu_opt_get_bool(opts, "snapshot", 0);
821 ro = qemu_opt_get_bool(opts, "readonly", 0);
822
823 file = qemu_opt_get(opts, "file");
824 serial = qemu_opt_get(opts, "serial");
825
826 if ((buf = qemu_opt_get(opts, "if")) != NULL) {
827 pstrcpy(devname, sizeof(devname), buf);
828 if (!strcmp(buf, "ide")) {
829 type = IF_IDE;
830 max_devs = MAX_IDE_DEVS;
831 } else if (!strcmp(buf, "scsi")) {
832 type = IF_SCSI;
833 max_devs = MAX_SCSI_DEVS;
834 } else if (!strcmp(buf, "floppy")) {
835 type = IF_FLOPPY;
836 max_devs = 0;
837 } else if (!strcmp(buf, "pflash")) {
838 type = IF_PFLASH;
839 max_devs = 0;
840 } else if (!strcmp(buf, "mtd")) {
841 type = IF_MTD;
842 max_devs = 0;
843 } else if (!strcmp(buf, "sd")) {
844 type = IF_SD;
845 max_devs = 0;
846 } else if (!strcmp(buf, "virtio")) {
847 type = IF_VIRTIO;
848 max_devs = 0;
849 } else if (!strcmp(buf, "xen")) {
850 type = IF_XEN;
851 max_devs = 0;
852 } else if (!strcmp(buf, "none")) {
853 type = IF_NONE;
854 max_devs = 0;
855 } else {
856 fprintf(stderr, "qemu: unsupported bus type '%s'\n", buf);
857 return NULL;
858 }
859 }
860
861 if (cyls || heads || secs) {
862 if (cyls < 1 || (type == IF_IDE && cyls > 16383)) {
863 fprintf(stderr, "qemu: '%s' invalid physical cyls number\n", buf);
864 return NULL;
865 }
866 if (heads < 1 || (type == IF_IDE && heads > 16)) {
867 fprintf(stderr, "qemu: '%s' invalid physical heads number\n", buf);
868 return NULL;
869 }
870 if (secs < 1 || (type == IF_IDE && secs > 63)) {
871 fprintf(stderr, "qemu: '%s' invalid physical secs number\n", buf);
872 return NULL;
873 }
874 }
875
876 if ((buf = qemu_opt_get(opts, "trans")) != NULL) {
877 if (!cyls) {
878 fprintf(stderr,
879 "qemu: '%s' trans must be used with cyls,heads and secs\n",
880 buf);
881 return NULL;
882 }
883 if (!strcmp(buf, "none"))
884 translation = BIOS_ATA_TRANSLATION_NONE;
885 else if (!strcmp(buf, "lba"))
886 translation = BIOS_ATA_TRANSLATION_LBA;
887 else if (!strcmp(buf, "auto"))
888 translation = BIOS_ATA_TRANSLATION_AUTO;
889 else {
890 fprintf(stderr, "qemu: '%s' invalid translation type\n", buf);
891 return NULL;
892 }
893 }
894
895 if ((buf = qemu_opt_get(opts, "media")) != NULL) {
896 if (!strcmp(buf, "disk")) {
897 media = MEDIA_DISK;
898 } else if (!strcmp(buf, "cdrom")) {
899 if (cyls || secs || heads) {
900 fprintf(stderr,
901 "qemu: '%s' invalid physical CHS format\n", buf);
902 return NULL;
903 }
904 media = MEDIA_CDROM;
905 } else {
906 fprintf(stderr, "qemu: '%s' invalid media\n", buf);
907 return NULL;
908 }
909 }
910
911 if ((buf = qemu_opt_get(opts, "cache")) != NULL) {
912 if (!strcmp(buf, "off") || !strcmp(buf, "none")) {
913 bdrv_flags |= BDRV_O_NOCACHE;
914 } else if (!strcmp(buf, "writeback")) {
915 bdrv_flags |= BDRV_O_CACHE_WB;
916 } else if (!strcmp(buf, "unsafe")) {
917 bdrv_flags |= BDRV_O_CACHE_WB;
918 bdrv_flags |= BDRV_O_NO_FLUSH;
919 } else if (!strcmp(buf, "writethrough")) {
920 /* this is the default */
921 } else {
922 fprintf(stderr, "qemu: invalid cache option\n");
923 return NULL;
924 }
925 }
926
927 #ifdef CONFIG_LINUX_AIO
928 if ((buf = qemu_opt_get(opts, "aio")) != NULL) {
929 if (!strcmp(buf, "native")) {
930 bdrv_flags |= BDRV_O_NATIVE_AIO;
931 } else if (!strcmp(buf, "threads")) {
932 /* this is the default */
933 } else {
934 fprintf(stderr, "qemu: invalid aio option\n");
935 return NULL;
936 }
937 }
938 #endif
939
940 if ((buf = qemu_opt_get(opts, "format")) != NULL) {
941 if (strcmp(buf, "?") == 0) {
942 fprintf(stderr, "qemu: Supported formats:");
943 bdrv_iterate_format(bdrv_format_print, NULL);
944 fprintf(stderr, "\n");
945 return NULL;
946 }
947 drv = bdrv_find_whitelisted_format(buf);
948 if (!drv) {
949 fprintf(stderr, "qemu: '%s' invalid format\n", buf);
950 return NULL;
951 }
952 }
953
954 on_write_error = BLOCK_ERR_STOP_ENOSPC;
955 if ((buf = qemu_opt_get(opts, "werror")) != NULL) {
956 if (type != IF_IDE && type != IF_SCSI && type != IF_VIRTIO && type != IF_NONE) {
957 fprintf(stderr, "werror is no supported by this format\n");
958 return NULL;
959 }
960
961 on_write_error = parse_block_error_action(buf, 0);
962 if (on_write_error < 0) {
963 return NULL;
964 }
965 }
966
967 on_read_error = BLOCK_ERR_REPORT;
968 if ((buf = qemu_opt_get(opts, "rerror")) != NULL) {
969 if (type != IF_IDE && type != IF_VIRTIO && type != IF_NONE) {
970 fprintf(stderr, "rerror is no supported by this format\n");
971 return NULL;
972 }
973
974 on_read_error = parse_block_error_action(buf, 1);
975 if (on_read_error < 0) {
976 return NULL;
977 }
978 }
979
980 if ((devaddr = qemu_opt_get(opts, "addr")) != NULL) {
981 if (type != IF_VIRTIO) {
982 fprintf(stderr, "addr is not supported\n");
983 return NULL;
984 }
985 }
986
987 /* compute bus and unit according index */
988
989 if (index != -1) {
990 if (bus_id != 0 || unit_id != -1) {
991 fprintf(stderr,
992 "qemu: index cannot be used with bus and unit\n");
993 return NULL;
994 }
995 if (max_devs == 0)
996 {
997 unit_id = index;
998 bus_id = 0;
999 } else {
1000 unit_id = index % max_devs;
1001 bus_id = index / max_devs;
1002 }
1003 }
1004
1005 /* if user doesn't specify a unit_id,
1006 * try to find the first free
1007 */
1008
1009 if (unit_id == -1) {
1010 unit_id = 0;
1011 while (drive_get(type, bus_id, unit_id) != NULL) {
1012 unit_id++;
1013 if (max_devs && unit_id >= max_devs) {
1014 unit_id -= max_devs;
1015 bus_id++;
1016 }
1017 }
1018 }
1019
1020 /* check unit id */
1021
1022 if (max_devs && unit_id >= max_devs) {
1023 fprintf(stderr, "qemu: unit %d too big (max is %d)\n",
1024 unit_id, max_devs - 1);
1025 return NULL;
1026 }
1027
1028 /*
1029 * ignore multiple definitions
1030 */
1031
1032 if (drive_get(type, bus_id, unit_id) != NULL) {
1033 *fatal_error = 0;
1034 return NULL;
1035 }
1036
1037 /* init */
1038
1039 dinfo = qemu_mallocz(sizeof(*dinfo));
1040 if ((buf = qemu_opts_id(opts)) != NULL) {
1041 dinfo->id = qemu_strdup(buf);
1042 } else {
1043 /* no id supplied -> create one */
1044 dinfo->id = qemu_mallocz(32);
1045 if (type == IF_IDE || type == IF_SCSI)
1046 mediastr = (media == MEDIA_CDROM) ? "-cd" : "-hd";
1047 if (max_devs)
1048 snprintf(dinfo->id, 32, "%s%i%s%i",
1049 devname, bus_id, mediastr, unit_id);
1050 else
1051 snprintf(dinfo->id, 32, "%s%s%i",
1052 devname, mediastr, unit_id);
1053 }
1054 dinfo->bdrv = bdrv_new(dinfo->id);
1055 dinfo->devaddr = devaddr;
1056 dinfo->type = type;
1057 dinfo->bus = bus_id;
1058 dinfo->unit = unit_id;
1059 dinfo->on_read_error = on_read_error;
1060 dinfo->on_write_error = on_write_error;
1061 dinfo->opts = opts;
1062 if (serial)
1063 strncpy(dinfo->serial, serial, sizeof(serial));
1064 QTAILQ_INSERT_TAIL(&drives, dinfo, next);
1065
1066 switch(type) {
1067 case IF_IDE:
1068 case IF_SCSI:
1069 case IF_XEN:
1070 case IF_NONE:
1071 switch(media) {
1072 case MEDIA_DISK:
1073 if (cyls != 0) {
1074 bdrv_set_geometry_hint(dinfo->bdrv, cyls, heads, secs);
1075 bdrv_set_translation_hint(dinfo->bdrv, translation);
1076 }
1077 break;
1078 case MEDIA_CDROM:
1079 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_CDROM);
1080 break;
1081 }
1082 break;
1083 case IF_SD:
1084 /* FIXME: This isn't really a floppy, but it's a reasonable
1085 approximation. */
1086 case IF_FLOPPY:
1087 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_FLOPPY);
1088 break;
1089 case IF_PFLASH:
1090 case IF_MTD:
1091 break;
1092 case IF_VIRTIO:
1093 /* add virtio block device */
1094 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
1095 qemu_opt_set(opts, "driver", "virtio-blk-pci");
1096 qemu_opt_set(opts, "drive", dinfo->id);
1097 if (devaddr)
1098 qemu_opt_set(opts, "addr", devaddr);
1099 break;
1100 case IF_COUNT:
1101 abort();
1102 }
1103 if (!file) {
1104 *fatal_error = 0;
1105 return NULL;
1106 }
1107 if (snapshot) {
1108 /* always use cache=unsafe with snapshot */
1109 bdrv_flags &= ~BDRV_O_CACHE_MASK;
1110 bdrv_flags |= (BDRV_O_SNAPSHOT|BDRV_O_CACHE_WB|BDRV_O_NO_FLUSH);
1111 }
1112
1113 if (media == MEDIA_CDROM) {
1114 /* CDROM is fine for any interface, don't check. */
1115 ro = 1;
1116 } else if (ro == 1) {
1117 if (type != IF_SCSI && type != IF_VIRTIO && type != IF_FLOPPY && type != IF_NONE) {
1118 fprintf(stderr, "qemu: readonly flag not supported for drive with this interface\n");
1119 return NULL;
1120 }
1121 }
1122
1123 bdrv_flags |= ro ? 0 : BDRV_O_RDWR;
1124
1125 if (bdrv_open(dinfo->bdrv, file, bdrv_flags, drv) < 0) {
1126 fprintf(stderr, "qemu: could not open disk image %s: %s\n",
1127 file, strerror(errno));
1128 return NULL;
1129 }
1130
1131 if (bdrv_key_required(dinfo->bdrv))
1132 autostart = 0;
1133 *fatal_error = 0;
1134 return dinfo;
1135 }
1136
1137 static int drive_init_func(QemuOpts *opts, void *opaque)
1138 {
1139 QEMUMachine *machine = opaque;
1140 int fatal_error = 0;
1141
1142 if (drive_init(opts, machine, &fatal_error) == NULL) {
1143 if (fatal_error)
1144 return 1;
1145 }
1146 return 0;
1147 }
1148
1149 static int drive_enable_snapshot(QemuOpts *opts, void *opaque)
1150 {
1151 if (NULL == qemu_opt_get(opts, "snapshot")) {
1152 qemu_opt_set(opts, "snapshot", "on");
1153 }
1154 return 0;
1155 }
1156
1157 void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
1158 {
1159 boot_set_handler = func;
1160 boot_set_opaque = opaque;
1161 }
1162
1163 int qemu_boot_set(const char *boot_devices)
1164 {
1165 if (!boot_set_handler) {
1166 return -EINVAL;
1167 }
1168 return boot_set_handler(boot_set_opaque, boot_devices);
1169 }
1170
1171 static void validate_bootdevices(char *devices)
1172 {
1173 /* We just do some generic consistency checks */
1174 const char *p;
1175 int bitmap = 0;
1176
1177 for (p = devices; *p != '\0'; p++) {
1178 /* Allowed boot devices are:
1179 * a-b: floppy disk drives
1180 * c-f: IDE disk drives
1181 * g-m: machine implementation dependant drives
1182 * n-p: network devices
1183 * It's up to each machine implementation to check if the given boot
1184 * devices match the actual hardware implementation and firmware
1185 * features.
1186 */
1187 if (*p < 'a' || *p > 'p') {
1188 fprintf(stderr, "Invalid boot device '%c'\n", *p);
1189 exit(1);
1190 }
1191 if (bitmap & (1 << (*p - 'a'))) {
1192 fprintf(stderr, "Boot device '%c' was given twice\n", *p);
1193 exit(1);
1194 }
1195 bitmap |= 1 << (*p - 'a');
1196 }
1197 }
1198
1199 static void restore_boot_devices(void *opaque)
1200 {
1201 char *standard_boot_devices = opaque;
1202 static int first = 1;
1203
1204 /* Restore boot order and remove ourselves after the first boot */
1205 if (first) {
1206 first = 0;
1207 return;
1208 }
1209
1210 qemu_boot_set(standard_boot_devices);
1211
1212 qemu_unregister_reset(restore_boot_devices, standard_boot_devices);
1213 qemu_free(standard_boot_devices);
1214 }
1215
1216 static void numa_add(const char *optarg)
1217 {
1218 char option[128];
1219 char *endptr;
1220 unsigned long long value, endvalue;
1221 int nodenr;
1222
1223 optarg = get_opt_name(option, 128, optarg, ',') + 1;
1224 if (!strcmp(option, "node")) {
1225 if (get_param_value(option, 128, "nodeid", optarg) == 0) {
1226 nodenr = nb_numa_nodes;
1227 } else {
1228 nodenr = strtoull(option, NULL, 10);
1229 }
1230
1231 if (get_param_value(option, 128, "mem", optarg) == 0) {
1232 node_mem[nodenr] = 0;
1233 } else {
1234 value = strtoull(option, &endptr, 0);
1235 switch (*endptr) {
1236 case 0: case 'M': case 'm':
1237 value <<= 20;
1238 break;
1239 case 'G': case 'g':
1240 value <<= 30;
1241 break;
1242 }
1243 node_mem[nodenr] = value;
1244 }
1245 if (get_param_value(option, 128, "cpus", optarg) == 0) {
1246 node_cpumask[nodenr] = 0;
1247 } else {
1248 value = strtoull(option, &endptr, 10);
1249 if (value >= 64) {
1250 value = 63;
1251 fprintf(stderr, "only 64 CPUs in NUMA mode supported.\n");
1252 } else {
1253 if (*endptr == '-') {
1254 endvalue = strtoull(endptr+1, &endptr, 10);
1255 if (endvalue >= 63) {
1256 endvalue = 62;
1257 fprintf(stderr,
1258 "only 63 CPUs in NUMA mode supported.\n");
1259 }
1260 value = (2ULL << endvalue) - (1ULL << value);
1261 } else {
1262 value = 1ULL << value;
1263 }
1264 }
1265 node_cpumask[nodenr] = value;
1266 }
1267 nb_numa_nodes++;
1268 }
1269 return;
1270 }
1271
1272 static void smp_parse(const char *optarg)
1273 {
1274 int smp, sockets = 0, threads = 0, cores = 0;
1275 char *endptr;
1276 char option[128];
1277
1278 smp = strtoul(optarg, &endptr, 10);
1279 if (endptr != optarg) {
1280 if (*endptr == ',') {
1281 endptr++;
1282 }
1283 }
1284 if (get_param_value(option, 128, "sockets", endptr) != 0)
1285 sockets = strtoull(option, NULL, 10);
1286 if (get_param_value(option, 128, "cores", endptr) != 0)
1287 cores = strtoull(option, NULL, 10);
1288 if (get_param_value(option, 128, "threads", endptr) != 0)
1289 threads = strtoull(option, NULL, 10);
1290 if (get_param_value(option, 128, "maxcpus", endptr) != 0)
1291 max_cpus = strtoull(option, NULL, 10);
1292
1293 /* compute missing values, prefer sockets over cores over threads */
1294 if (smp == 0 || sockets == 0) {
1295 sockets = sockets > 0 ? sockets : 1;
1296 cores = cores > 0 ? cores : 1;
1297 threads = threads > 0 ? threads : 1;
1298 if (smp == 0) {
1299 smp = cores * threads * sockets;
1300 }
1301 } else {
1302 if (cores == 0) {
1303 threads = threads > 0 ? threads : 1;
1304 cores = smp / (sockets * threads);
1305 } else {
1306 if (sockets) {
1307 threads = smp / (cores * sockets);
1308 }
1309 }
1310 }
1311 smp_cpus = smp;
1312 smp_cores = cores > 0 ? cores : 1;
1313 smp_threads = threads > 0 ? threads : 1;
1314 if (max_cpus == 0)
1315 max_cpus = smp_cpus;
1316 }
1317
1318 /***********************************************************/
1319 /* USB devices */
1320
1321 static int usb_device_add(const char *devname, int is_hotplug)
1322 {
1323 const char *p;
1324 USBDevice *dev = NULL;
1325
1326 if (!usb_enabled)
1327 return -1;
1328
1329 /* drivers with .usbdevice_name entry in USBDeviceInfo */
1330 dev = usbdevice_create(devname);
1331 if (dev)
1332 goto done;
1333
1334 /* the other ones */
1335 if (strstart(devname, "host:", &p)) {
1336 dev = usb_host_device_open(p);
1337 } else if (!strcmp(devname, "bt") || strstart(devname, "bt:", &p)) {
1338 dev = usb_bt_init(devname[2] ? hci_init(p) :
1339 bt_new_hci(qemu_find_bt_vlan(0)));
1340 } else {
1341 return -1;
1342 }
1343 if (!dev)
1344 return -1;
1345
1346 done:
1347 return 0;
1348 }
1349
1350 static int usb_device_del(const char *devname)
1351 {
1352 int bus_num, addr;
1353 const char *p;
1354
1355 if (strstart(devname, "host:", &p))
1356 return usb_host_device_close(p);
1357
1358 if (!usb_enabled)
1359 return -1;
1360
1361 p = strchr(devname, '.');
1362 if (!p)
1363 return -1;
1364 bus_num = strtoul(devname, NULL, 0);
1365 addr = strtoul(p + 1, NULL, 0);
1366
1367 return usb_device_delete_addr(bus_num, addr);
1368 }
1369
1370 static int usb_parse(const char *cmdline)
1371 {
1372 int r;
1373 r = usb_device_add(cmdline, 0);
1374 if (r < 0) {
1375 fprintf(stderr, "qemu: could not add USB device '%s'\n", cmdline);
1376 }
1377 return r;
1378 }
1379
1380 void do_usb_add(Monitor *mon, const QDict *qdict)
1381 {
1382 const char *devname = qdict_get_str(qdict, "devname");
1383 if (usb_device_add(devname, 1) < 0) {
1384 error_report("could not add USB device '%s'", devname);
1385 }
1386 }
1387
1388 void do_usb_del(Monitor *mon, const QDict *qdict)
1389 {
1390 const char *devname = qdict_get_str(qdict, "devname");
1391 if (usb_device_del(devname) < 0) {
1392 error_report("could not delete USB device '%s'", devname);
1393 }
1394 }
1395
1396 /***********************************************************/
1397 /* PCMCIA/Cardbus */
1398
1399 static struct pcmcia_socket_entry_s {
1400 PCMCIASocket *socket;
1401 struct pcmcia_socket_entry_s *next;
1402 } *pcmcia_sockets = 0;
1403
1404 void pcmcia_socket_register(PCMCIASocket *socket)
1405 {
1406 struct pcmcia_socket_entry_s *entry;
1407
1408 entry = qemu_malloc(sizeof(struct pcmcia_socket_entry_s));
1409 entry->socket = socket;
1410 entry->next = pcmcia_sockets;
1411 pcmcia_sockets = entry;
1412 }
1413
1414 void pcmcia_socket_unregister(PCMCIASocket *socket)
1415 {
1416 struct pcmcia_socket_entry_s *entry, **ptr;
1417
1418 ptr = &pcmcia_sockets;
1419 for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
1420 if (entry->socket == socket) {
1421 *ptr = entry->next;
1422 qemu_free(entry);
1423 }
1424 }
1425
1426 void pcmcia_info(Monitor *mon)
1427 {
1428 struct pcmcia_socket_entry_s *iter;
1429
1430 if (!pcmcia_sockets)
1431 monitor_printf(mon, "No PCMCIA sockets\n");
1432
1433 for (iter = pcmcia_sockets; iter; iter = iter->next)
1434 monitor_printf(mon, "%s: %s\n", iter->socket->slot_string,
1435 iter->socket->attached ? iter->socket->card_string :
1436 "Empty");
1437 }
1438
1439 /***********************************************************/
1440 /* I/O handling */
1441
1442 typedef struct IOHandlerRecord {
1443 int fd;
1444 IOCanReadHandler *fd_read_poll;
1445 IOHandler *fd_read;
1446 IOHandler *fd_write;
1447 int deleted;
1448 void *opaque;
1449 /* temporary data */
1450 struct pollfd *ufd;
1451 QLIST_ENTRY(IOHandlerRecord) next;
1452 } IOHandlerRecord;
1453
1454 static QLIST_HEAD(, IOHandlerRecord) io_handlers =
1455 QLIST_HEAD_INITIALIZER(io_handlers);
1456
1457
1458 /* XXX: fd_read_poll should be suppressed, but an API change is
1459 necessary in the character devices to suppress fd_can_read(). */
1460 int qemu_set_fd_handler2(int fd,
1461 IOCanReadHandler *fd_read_poll,
1462 IOHandler *fd_read,
1463 IOHandler *fd_write,
1464 void *opaque)
1465 {
1466 IOHandlerRecord *ioh;
1467
1468 if (!fd_read && !fd_write) {
1469 QLIST_FOREACH(ioh, &io_handlers, next) {
1470 if (ioh->fd == fd) {
1471 ioh->deleted = 1;
1472 break;
1473 }
1474 }
1475 } else {
1476 QLIST_FOREACH(ioh, &io_handlers, next) {
1477 if (ioh->fd == fd)
1478 goto found;
1479 }
1480 ioh = qemu_mallocz(sizeof(IOHandlerRecord));
1481 QLIST_INSERT_HEAD(&io_handlers, ioh, next);
1482 found:
1483 ioh->fd = fd;
1484 ioh->fd_read_poll = fd_read_poll;
1485 ioh->fd_read = fd_read;
1486 ioh->fd_write = fd_write;
1487 ioh->opaque = opaque;
1488 ioh->deleted = 0;
1489 }
1490 return 0;
1491 }
1492
1493 int qemu_set_fd_handler(int fd,
1494 IOHandler *fd_read,
1495 IOHandler *fd_write,
1496 void *opaque)
1497 {
1498 return qemu_set_fd_handler2(fd, NULL, fd_read, fd_write, opaque);
1499 }
1500
1501 #ifdef _WIN32
1502 /***********************************************************/
1503 /* Polling handling */
1504
1505 typedef struct PollingEntry {
1506 PollingFunc *func;
1507 void *opaque;
1508 struct PollingEntry *next;
1509 } PollingEntry;
1510
1511 static PollingEntry *first_polling_entry;
1512
1513 int qemu_add_polling_cb(PollingFunc *func, void *opaque)
1514 {
1515 PollingEntry **ppe, *pe;
1516 pe = qemu_mallocz(sizeof(PollingEntry));
1517 pe->func = func;
1518 pe->opaque = opaque;
1519 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next);
1520 *ppe = pe;
1521 return 0;
1522 }
1523
1524 void qemu_del_polling_cb(PollingFunc *func, void *opaque)
1525 {
1526 PollingEntry **ppe, *pe;
1527 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next) {
1528 pe = *ppe;
1529 if (pe->func == func && pe->opaque == opaque) {
1530 *ppe = pe->next;
1531 qemu_free(pe);
1532 break;
1533 }
1534 }
1535 }
1536
1537 /***********************************************************/
1538 /* Wait objects support */
1539 typedef struct WaitObjects {
1540 int num;
1541 HANDLE events[MAXIMUM_WAIT_OBJECTS + 1];
1542 WaitObjectFunc *func[MAXIMUM_WAIT_OBJECTS + 1];
1543 void *opaque[MAXIMUM_WAIT_OBJECTS + 1];
1544 } WaitObjects;
1545
1546 static WaitObjects wait_objects = {0};
1547
1548 int qemu_add_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
1549 {
1550 WaitObjects *w = &wait_objects;
1551
1552 if (w->num >= MAXIMUM_WAIT_OBJECTS)
1553 return -1;
1554 w->events[w->num] = handle;
1555 w->func[w->num] = func;
1556 w->opaque[w->num] = opaque;
1557 w->num++;
1558 return 0;
1559 }
1560
1561 void qemu_del_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
1562 {
1563 int i, found;
1564 WaitObjects *w = &wait_objects;
1565
1566 found = 0;
1567 for (i = 0; i < w->num; i++) {
1568 if (w->events[i] == handle)
1569 found = 1;
1570 if (found) {
1571 w->events[i] = w->events[i + 1];
1572 w->func[i] = w->func[i + 1];
1573 w->opaque[i] = w->opaque[i + 1];
1574 }
1575 }
1576 if (found)
1577 w->num--;
1578 }
1579 #endif
1580
1581 /***********************************************************/
1582 /* machine registration */
1583
1584 static QEMUMachine *first_machine = NULL;
1585 QEMUMachine *current_machine = NULL;
1586
1587 int qemu_register_machine(QEMUMachine *m)
1588 {
1589 QEMUMachine **pm;
1590 pm = &first_machine;
1591 while (*pm != NULL)
1592 pm = &(*pm)->next;
1593 m->next = NULL;
1594 *pm = m;
1595 return 0;
1596 }
1597
1598 static QEMUMachine *find_machine(const char *name)
1599 {
1600 QEMUMachine *m;
1601
1602 for(m = first_machine; m != NULL; m = m->next) {
1603 if (!strcmp(m->name, name))
1604 return m;
1605 if (m->alias && !strcmp(m->alias, name))
1606 return m;
1607 }
1608 return NULL;
1609 }
1610
1611 static QEMUMachine *find_default_machine(void)
1612 {
1613 QEMUMachine *m;
1614
1615 for(m = first_machine; m != NULL; m = m->next) {
1616 if (m->is_default) {
1617 return m;
1618 }
1619 }
1620 return NULL;
1621 }
1622
1623 /***********************************************************/
1624 /* main execution loop */
1625
1626 static void gui_update(void *opaque)
1627 {
1628 uint64_t interval = GUI_REFRESH_INTERVAL;
1629 DisplayState *ds = opaque;
1630 DisplayChangeListener *dcl = ds->listeners;
1631
1632 qemu_flush_coalesced_mmio_buffer();
1633 dpy_refresh(ds);
1634
1635 while (dcl != NULL) {
1636 if (dcl->gui_timer_interval &&
1637 dcl->gui_timer_interval < interval)
1638 interval = dcl->gui_timer_interval;
1639 dcl = dcl->next;
1640 }
1641 qemu_mod_timer(ds->gui_timer, interval + qemu_get_clock(rt_clock));
1642 }
1643
1644 static void nographic_update(void *opaque)
1645 {
1646 uint64_t interval = GUI_REFRESH_INTERVAL;
1647
1648 qemu_flush_coalesced_mmio_buffer();
1649 qemu_mod_timer(nographic_timer, interval + qemu_get_clock(rt_clock));
1650 }
1651
1652 struct vm_change_state_entry {
1653 VMChangeStateHandler *cb;
1654 void *opaque;
1655 QLIST_ENTRY (vm_change_state_entry) entries;
1656 };
1657
1658 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1659
1660 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1661 void *opaque)
1662 {
1663 VMChangeStateEntry *e;
1664
1665 e = qemu_mallocz(sizeof (*e));
1666
1667 e->cb = cb;
1668 e->opaque = opaque;
1669 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1670 return e;
1671 }
1672
1673 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1674 {
1675 QLIST_REMOVE (e, entries);
1676 qemu_free (e);
1677 }
1678
1679 void vm_state_notify(int running, int reason)
1680 {
1681 VMChangeStateEntry *e;
1682
1683 for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
1684 e->cb(e->opaque, running, reason);
1685 }
1686 }
1687
1688 void vm_start(void)
1689 {
1690 if (!vm_running) {
1691 cpu_enable_ticks();
1692 vm_running = 1;
1693 vm_state_notify(1, 0);
1694 resume_all_vcpus();
1695 monitor_protocol_event(QEVENT_RESUME, NULL);
1696 }
1697 }
1698
1699 /* reset/shutdown handler */
1700
1701 typedef struct QEMUResetEntry {
1702 QTAILQ_ENTRY(QEMUResetEntry) entry;
1703 QEMUResetHandler *func;
1704 void *opaque;
1705 } QEMUResetEntry;
1706
1707 static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
1708 QTAILQ_HEAD_INITIALIZER(reset_handlers);
1709 static int reset_requested;
1710 static int shutdown_requested;
1711 static int powerdown_requested;
1712 int debug_requested;
1713 int vmstop_requested;
1714
1715 int qemu_shutdown_requested(void)
1716 {
1717 int r = shutdown_requested;
1718 shutdown_requested = 0;
1719 return r;
1720 }
1721
1722 int qemu_reset_requested(void)
1723 {
1724 int r = reset_requested;
1725 reset_requested = 0;
1726 return r;
1727 }
1728
1729 int qemu_powerdown_requested(void)
1730 {
1731 int r = powerdown_requested;
1732 powerdown_requested = 0;
1733 return r;
1734 }
1735
1736 static int qemu_debug_requested(void)
1737 {
1738 int r = debug_requested;
1739 debug_requested = 0;
1740 return r;
1741 }
1742
1743 static int qemu_vmstop_requested(void)
1744 {
1745 int r = vmstop_requested;
1746 vmstop_requested = 0;
1747 return r;
1748 }
1749
1750 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
1751 {
1752 QEMUResetEntry *re = qemu_mallocz(sizeof(QEMUResetEntry));
1753
1754 re->func = func;
1755 re->opaque = opaque;
1756 QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
1757 }
1758
1759 void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
1760 {
1761 QEMUResetEntry *re;
1762
1763 QTAILQ_FOREACH(re, &reset_handlers, entry) {
1764 if (re->func == func && re->opaque == opaque) {
1765 QTAILQ_REMOVE(&reset_handlers, re, entry);
1766 qemu_free(re);
1767 return;
1768 }
1769 }
1770 }
1771
1772 void qemu_system_reset(void)
1773 {
1774 QEMUResetEntry *re, *nre;
1775
1776 /* reset all devices */
1777 QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
1778 re->func(re->opaque);
1779 }
1780 monitor_protocol_event(QEVENT_RESET, NULL);
1781 cpu_synchronize_all_post_reset();
1782 }
1783
1784 void qemu_system_reset_request(void)
1785 {
1786 if (no_reboot) {
1787 shutdown_requested = 1;
1788 } else {
1789 reset_requested = 1;
1790 }
1791 qemu_notify_event();
1792 }
1793
1794 void qemu_system_shutdown_request(void)
1795 {
1796 shutdown_requested = 1;
1797 qemu_notify_event();
1798 }
1799
1800 void qemu_system_powerdown_request(void)
1801 {
1802 powerdown_requested = 1;
1803 qemu_notify_event();
1804 }
1805
1806 #ifdef _WIN32
1807 static void host_main_loop_wait(int *timeout)
1808 {
1809 int ret, ret2, i;
1810 PollingEntry *pe;
1811
1812
1813 /* XXX: need to suppress polling by better using win32 events */
1814 ret = 0;
1815 for(pe = first_polling_entry; pe != NULL; pe = pe->next) {
1816 ret |= pe->func(pe->opaque);
1817 }
1818 if (ret == 0) {
1819 int err;
1820 WaitObjects *w = &wait_objects;
1821
1822 ret = WaitForMultipleObjects(w->num, w->events, FALSE, *timeout);
1823 if (WAIT_OBJECT_0 + 0 <= ret && ret <= WAIT_OBJECT_0 + w->num - 1) {
1824 if (w->func[ret - WAIT_OBJECT_0])
1825 w->func[ret - WAIT_OBJECT_0](w->opaque[ret - WAIT_OBJECT_0]);
1826
1827 /* Check for additional signaled events */
1828 for(i = (ret - WAIT_OBJECT_0 + 1); i < w->num; i++) {
1829
1830 /* Check if event is signaled */
1831 ret2 = WaitForSingleObject(w->events[i], 0);
1832 if(ret2 == WAIT_OBJECT_0) {
1833 if (w->func[i])
1834 w->func[i](w->opaque[i]);
1835 } else if (ret2 == WAIT_TIMEOUT) {
1836 } else {
1837 err = GetLastError();
1838 fprintf(stderr, "WaitForSingleObject error %d %d\n", i, err);
1839 }
1840 }
1841 } else if (ret == WAIT_TIMEOUT) {
1842 } else {
1843 err = GetLastError();
1844 fprintf(stderr, "WaitForMultipleObjects error %d %d\n", ret, err);
1845 }
1846 }
1847
1848 *timeout = 0;
1849 }
1850 #else
1851 static void host_main_loop_wait(int *timeout)
1852 {
1853 }
1854 #endif
1855
1856 void main_loop_wait(int nonblocking)
1857 {
1858 IOHandlerRecord *ioh;
1859 fd_set rfds, wfds, xfds;
1860 int ret, nfds;
1861 struct timeval tv;
1862 int timeout;
1863
1864 if (nonblocking)
1865 timeout = 0;
1866 else {
1867 timeout = qemu_calculate_timeout();
1868 qemu_bh_update_timeout(&timeout);
1869 }
1870
1871 host_main_loop_wait(&timeout);
1872
1873 /* poll any events */
1874 /* XXX: separate device handlers from system ones */
1875 nfds = -1;
1876 FD_ZERO(&rfds);
1877 FD_ZERO(&wfds);
1878 FD_ZERO(&xfds);
1879 QLIST_FOREACH(ioh, &io_handlers, next) {
1880 if (ioh->deleted)
1881 continue;
1882 if (ioh->fd_read &&
1883 (!ioh->fd_read_poll ||
1884 ioh->fd_read_poll(ioh->opaque) != 0)) {
1885 FD_SET(ioh->fd, &rfds);
1886 if (ioh->fd > nfds)
1887 nfds = ioh->fd;
1888 }
1889 if (ioh->fd_write) {
1890 FD_SET(ioh->fd, &wfds);
1891 if (ioh->fd > nfds)
1892 nfds = ioh->fd;
1893 }
1894 }
1895
1896 tv.tv_sec = timeout / 1000;
1897 tv.tv_usec = (timeout % 1000) * 1000;
1898
1899 slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
1900
1901 qemu_mutex_unlock_iothread();
1902 ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
1903 qemu_mutex_lock_iothread();
1904 if (ret > 0) {
1905 IOHandlerRecord *pioh;
1906
1907 QLIST_FOREACH_SAFE(ioh, &io_handlers, next, pioh) {
1908 if (ioh->deleted) {
1909 QLIST_REMOVE(ioh, next);
1910 qemu_free(ioh);
1911 continue;
1912 }
1913 if (ioh->fd_read && FD_ISSET(ioh->fd, &rfds)) {
1914 ioh->fd_read(ioh->opaque);
1915 }
1916 if (ioh->fd_write && FD_ISSET(ioh->fd, &wfds)) {
1917 ioh->fd_write(ioh->opaque);
1918 }
1919 }
1920 }
1921
1922 slirp_select_poll(&rfds, &wfds, &xfds, (ret < 0));
1923
1924 qemu_run_all_timers();
1925
1926 /* Check bottom-halves last in case any of the earlier events triggered
1927 them. */
1928 qemu_bh_poll();
1929
1930 }
1931
1932 static int vm_can_run(void)
1933 {
1934 if (powerdown_requested)
1935 return 0;
1936 if (reset_requested)
1937 return 0;
1938 if (shutdown_requested)
1939 return 0;
1940 if (debug_requested)
1941 return 0;
1942 return 1;
1943 }
1944
1945 qemu_irq qemu_system_powerdown;
1946
1947 static void main_loop(void)
1948 {
1949 int r;
1950
1951 qemu_main_loop_start();
1952
1953 for (;;) {
1954 do {
1955 bool nonblocking = false;
1956 #ifdef CONFIG_PROFILER
1957 int64_t ti;
1958 #endif
1959 #ifndef CONFIG_IOTHREAD
1960 nonblocking = tcg_cpu_exec();
1961 #endif
1962 #ifdef CONFIG_PROFILER
1963 ti = profile_getclock();
1964 #endif
1965 main_loop_wait(nonblocking);
1966 #ifdef CONFIG_PROFILER
1967 dev_time += profile_getclock() - ti;
1968 #endif
1969 } while (vm_can_run());
1970
1971 if ((r = qemu_debug_requested())) {
1972 vm_stop(r);
1973 }
1974 if (qemu_shutdown_requested()) {
1975 monitor_protocol_event(QEVENT_SHUTDOWN, NULL);
1976 if (no_shutdown) {
1977 vm_stop(0);
1978 no_shutdown = 0;
1979 } else
1980 break;
1981 }
1982 if (qemu_reset_requested()) {
1983 pause_all_vcpus();
1984 qemu_system_reset();
1985 resume_all_vcpus();
1986 }
1987 if (qemu_powerdown_requested()) {
1988 monitor_protocol_event(QEVENT_POWERDOWN, NULL);
1989 qemu_irq_raise(qemu_system_powerdown);
1990 }
1991 if ((r = qemu_vmstop_requested())) {
1992 vm_stop(r);
1993 }
1994 }
1995 pause_all_vcpus();
1996 }
1997
1998 static void version(void)
1999 {
2000 printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
2001 }
2002
2003 static void help(int exitcode)
2004 {
2005 const char *options_help =
2006 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
2007 opt_help
2008 #define DEFHEADING(text) stringify(text) "\n"
2009 #include "qemu-options.h"
2010 #undef DEF
2011 #undef DEFHEADING
2012 #undef GEN_DOCS
2013 ;
2014 version();
2015 printf("usage: %s [options] [disk_image]\n"
2016 "\n"
2017 "'disk_image' is a raw hard disk image for IDE hard disk 0\n"
2018 "\n"
2019 "%s\n"
2020 "During emulation, the following keys are useful:\n"
2021 "ctrl-alt-f toggle full screen\n"
2022 "ctrl-alt-n switch to virtual console 'n'\n"
2023 "ctrl-alt toggle mouse and keyboard grab\n"
2024 "\n"
2025 "When using -nographic, press 'ctrl-a h' to get some help.\n",
2026 "qemu",
2027 options_help);
2028 exit(exitcode);
2029 }
2030
2031 #define HAS_ARG 0x0001
2032
2033 enum {
2034 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
2035 opt_enum,
2036 #define DEFHEADING(text)
2037 #include "qemu-options.h"
2038 #undef DEF
2039 #undef DEFHEADING
2040 #undef GEN_DOCS
2041 };
2042
2043 typedef struct QEMUOption {
2044 const char *name;
2045 int flags;
2046 int index;
2047 uint32_t arch_mask;
2048 } QEMUOption;
2049
2050 static const QEMUOption qemu_options[] = {
2051 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
2052 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
2053 { option, opt_arg, opt_enum, arch_mask },
2054 #define DEFHEADING(text)
2055 #include "qemu-options.h"
2056 #undef DEF
2057 #undef DEFHEADING
2058 #undef GEN_DOCS
2059 { NULL },
2060 };
2061 static void select_vgahw (const char *p)
2062 {
2063 const char *opts;
2064
2065 default_vga = 0;
2066 vga_interface_type = VGA_NONE;
2067 if (strstart(p, "std", &opts)) {
2068 vga_interface_type = VGA_STD;
2069 } else if (strstart(p, "cirrus", &opts)) {
2070 vga_interface_type = VGA_CIRRUS;
2071 } else if (strstart(p, "vmware", &opts)) {
2072 vga_interface_type = VGA_VMWARE;
2073 } else if (strstart(p, "xenfb", &opts)) {
2074 vga_interface_type = VGA_XENFB;
2075 } else if (!strstart(p, "none", &opts)) {
2076 invalid_vga:
2077 fprintf(stderr, "Unknown vga type: %s\n", p);
2078 exit(1);
2079 }
2080 while (*opts) {
2081 const char *nextopt;
2082
2083 if (strstart(opts, ",retrace=", &nextopt)) {
2084 opts = nextopt;
2085 if (strstart(opts, "dumb", &nextopt))
2086 vga_retrace_method = VGA_RETRACE_DUMB;
2087 else if (strstart(opts, "precise", &nextopt))
2088 vga_retrace_method = VGA_RETRACE_PRECISE;
2089 else goto invalid_vga;
2090 } else goto invalid_vga;
2091 opts = nextopt;
2092 }
2093 }
2094
2095 static int balloon_parse(const char *arg)
2096 {
2097 QemuOpts *opts;
2098
2099 if (strcmp(arg, "none") == 0) {
2100 return 0;
2101 }
2102
2103 if (!strncmp(arg, "virtio", 6)) {
2104 if (arg[6] == ',') {
2105 /* have params -> parse them */
2106 opts = qemu_opts_parse(&qemu_device_opts, arg+7, 0);
2107 if (!opts)
2108 return -1;
2109 } else {
2110 /* create empty opts */
2111 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2112 }
2113 qemu_opt_set(opts, "driver", "virtio-balloon-pci");
2114 return 0;
2115 }
2116
2117 return -1;
2118 }
2119
2120 #ifdef _WIN32
2121 static BOOL WINAPI qemu_ctrl_handler(DWORD type)
2122 {
2123 exit(STATUS_CONTROL_C_EXIT);
2124 return TRUE;
2125 }
2126 #endif
2127
2128 #ifndef _WIN32
2129
2130 static void termsig_handler(int signal)
2131 {
2132 qemu_system_shutdown_request();
2133 }
2134
2135 static void sigchld_handler(int signal)
2136 {
2137 waitpid(-1, NULL, WNOHANG);
2138 }
2139
2140 static void sighandler_setup(void)
2141 {
2142 struct sigaction act;
2143
2144 memset(&act, 0, sizeof(act));
2145 act.sa_handler = termsig_handler;
2146 sigaction(SIGINT, &act, NULL);
2147 sigaction(SIGHUP, &act, NULL);
2148 sigaction(SIGTERM, &act, NULL);
2149
2150 act.sa_handler = sigchld_handler;
2151 act.sa_flags = SA_NOCLDSTOP;
2152 sigaction(SIGCHLD, &act, NULL);
2153 }
2154
2155 #endif
2156
2157 #ifdef _WIN32
2158 /* Look for support files in the same directory as the executable. */
2159 static char *find_datadir(const char *argv0)
2160 {
2161 char *p;
2162 char buf[MAX_PATH];
2163 DWORD len;
2164
2165 len = GetModuleFileName(NULL, buf, sizeof(buf) - 1);
2166 if (len == 0) {
2167 return NULL;
2168 }
2169
2170 buf[len] = 0;
2171 p = buf + len - 1;
2172 while (p != buf && *p != '\\')
2173 p--;
2174 *p = 0;
2175 if (access(buf, R_OK) == 0) {
2176 return qemu_strdup(buf);
2177 }
2178 return NULL;
2179 }
2180 #else /* !_WIN32 */
2181
2182 /* Find a likely location for support files using the location of the binary.
2183 For installed binaries this will be "$bindir/../share/qemu". When
2184 running from the build tree this will be "$bindir/../pc-bios". */
2185 #define SHARE_SUFFIX "/share/qemu"
2186 #define BUILD_SUFFIX "/pc-bios"
2187 static char *find_datadir(const char *argv0)
2188 {
2189 char *dir;
2190 char *p = NULL;
2191 char *res;
2192 char buf[PATH_MAX];
2193 size_t max_len;
2194
2195 #if defined(__linux__)
2196 {
2197 int len;
2198 len = readlink("/proc/self/exe", buf, sizeof(buf) - 1);
2199 if (len > 0) {
2200 buf[len] = 0;
2201 p = buf;
2202 }
2203 }
2204 #elif defined(__FreeBSD__)
2205 {
2206 static int mib[4] = {CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, -1};
2207 size_t len = sizeof(buf) - 1;
2208
2209 *buf = '\0';
2210 if (!sysctl(mib, sizeof(mib)/sizeof(*mib), buf, &len, NULL, 0) &&
2211 *buf) {
2212 buf[sizeof(buf) - 1] = '\0';
2213 p = buf;
2214 }
2215 }
2216 #endif
2217 /* If we don't have any way of figuring out the actual executable
2218 location then try argv[0]. */
2219 if (!p) {
2220 p = realpath(argv0, buf);
2221 if (!p) {
2222 return NULL;
2223 }
2224 }
2225 dir = dirname(p);
2226 dir = dirname(dir);
2227
2228 max_len = strlen(dir) +
2229 MAX(strlen(SHARE_SUFFIX), strlen(BUILD_SUFFIX)) + 1;
2230 res = qemu_mallocz(max_len);
2231 snprintf(res, max_len, "%s%s", dir, SHARE_SUFFIX);
2232 if (access(res, R_OK)) {
2233 snprintf(res, max_len, "%s%s", dir, BUILD_SUFFIX);
2234 if (access(res, R_OK)) {
2235 qemu_free(res);
2236 res = NULL;
2237 }
2238 }
2239
2240 return res;
2241 }
2242 #undef SHARE_SUFFIX
2243 #undef BUILD_SUFFIX
2244 #endif
2245
2246 char *qemu_find_file(int type, const char *name)
2247 {
2248 int len;
2249 const char *subdir;
2250 char *buf;
2251
2252 /* If name contains path separators then try it as a straight path. */
2253 if ((strchr(name, '/') || strchr(name, '\\'))
2254 && access(name, R_OK) == 0) {
2255 return qemu_strdup(name);
2256 }
2257 switch (type) {
2258 case QEMU_FILE_TYPE_BIOS:
2259 subdir = "";
2260 break;
2261 case QEMU_FILE_TYPE_KEYMAP:
2262 subdir = "keymaps/";
2263 break;
2264 default:
2265 abort();
2266 }
2267 len = strlen(data_dir) + strlen(name) + strlen(subdir) + 2;
2268 buf = qemu_mallocz(len);
2269 snprintf(buf, len, "%s/%s%s", data_dir, subdir, name);
2270 if (access(buf, R_OK)) {
2271 qemu_free(buf);
2272 return NULL;
2273 }
2274 return buf;
2275 }
2276
2277 static int device_help_func(QemuOpts *opts, void *opaque)
2278 {
2279 return qdev_device_help(opts);
2280 }
2281
2282 static int device_init_func(QemuOpts *opts, void *opaque)
2283 {
2284 DeviceState *dev;
2285
2286 dev = qdev_device_add(opts);
2287 if (!dev)
2288 return -1;
2289 return 0;
2290 }
2291
2292 static int chardev_init_func(QemuOpts *opts, void *opaque)
2293 {
2294 CharDriverState *chr;
2295
2296 chr = qemu_chr_open_opts(opts, NULL);
2297 if (!chr)
2298 return -1;
2299 return 0;
2300 }
2301
2302 #ifdef CONFIG_LINUX
2303 static int fsdev_init_func(QemuOpts *opts, void *opaque)
2304 {
2305 int ret;
2306 ret = qemu_fsdev_add(opts);
2307
2308 return ret;
2309 }
2310 #endif
2311
2312 static int mon_init_func(QemuOpts *opts, void *opaque)
2313 {
2314 CharDriverState *chr;
2315 const char *chardev;
2316 const char *mode;
2317 int flags;
2318
2319 mode = qemu_opt_get(opts, "mode");
2320 if (mode == NULL) {
2321 mode = "readline";
2322 }
2323 if (strcmp(mode, "readline") == 0) {
2324 flags = MONITOR_USE_READLINE;
2325 } else if (strcmp(mode, "control") == 0) {
2326 flags = MONITOR_USE_CONTROL;
2327 } else {
2328 fprintf(stderr, "unknown monitor mode \"%s\"\n", mode);
2329 exit(1);
2330 }
2331
2332 if (qemu_opt_get_bool(opts, "default", 0))
2333 flags |= MONITOR_IS_DEFAULT;
2334
2335 chardev = qemu_opt_get(opts, "chardev");
2336 chr = qemu_chr_find(chardev);
2337 if (chr == NULL) {
2338 fprintf(stderr, "chardev \"%s\" not found\n", chardev);
2339 exit(1);
2340 }
2341
2342 monitor_init(chr, flags);
2343 return 0;
2344 }
2345
2346 static void monitor_parse(const char *optarg, const char *mode)
2347 {
2348 static int monitor_device_index = 0;
2349 QemuOpts *opts;
2350 const char *p;
2351 char label[32];
2352 int def = 0;
2353
2354 if (strstart(optarg, "chardev:", &p)) {
2355 snprintf(label, sizeof(label), "%s", p);
2356 } else {
2357 snprintf(label, sizeof(label), "compat_monitor%d",
2358 monitor_device_index);
2359 if (monitor_device_index == 0) {
2360 def = 1;
2361 }
2362 opts = qemu_chr_parse_compat(label, optarg);
2363 if (!opts) {
2364 fprintf(stderr, "parse error: %s\n", optarg);
2365 exit(1);
2366 }
2367 }
2368
2369 opts = qemu_opts_create(&qemu_mon_opts, label, 1);
2370 if (!opts) {
2371 fprintf(stderr, "duplicate chardev: %s\n", label);
2372 exit(1);
2373 }
2374 qemu_opt_set(opts, "mode", mode);
2375 qemu_opt_set(opts, "chardev", label);
2376 if (def)
2377 qemu_opt_set(opts, "default", "on");
2378 monitor_device_index++;
2379 }
2380
2381 struct device_config {
2382 enum {
2383 DEV_USB, /* -usbdevice */
2384 DEV_BT, /* -bt */
2385 DEV_SERIAL, /* -serial */
2386 DEV_PARALLEL, /* -parallel */
2387 DEV_VIRTCON, /* -virtioconsole */
2388 DEV_DEBUGCON, /* -debugcon */
2389 } type;
2390 const char *cmdline;
2391 QTAILQ_ENTRY(device_config) next;
2392 };
2393 QTAILQ_HEAD(, device_config) device_configs = QTAILQ_HEAD_INITIALIZER(device_configs);
2394
2395 static void add_device_config(int type, const char *cmdline)
2396 {
2397 struct device_config *conf;
2398
2399 conf = qemu_mallocz(sizeof(*conf));
2400 conf->type = type;
2401 conf->cmdline = cmdline;
2402 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2403 }
2404
2405 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2406 {
2407 struct device_config *conf;
2408 int rc;
2409
2410 QTAILQ_FOREACH(conf, &device_configs, next) {
2411 if (conf->type != type)
2412 continue;
2413 rc = func(conf->cmdline);
2414 if (0 != rc)
2415 return rc;
2416 }
2417 return 0;
2418 }
2419
2420 static int serial_parse(const char *devname)
2421 {
2422 static int index = 0;
2423 char label[32];
2424
2425 if (strcmp(devname, "none") == 0)
2426 return 0;
2427 if (index == MAX_SERIAL_PORTS) {
2428 fprintf(stderr, "qemu: too many serial ports\n");
2429 exit(1);
2430 }
2431 snprintf(label, sizeof(label), "serial%d", index);
2432 serial_hds[index] = qemu_chr_open(label, devname, NULL);
2433 if (!serial_hds[index]) {
2434 fprintf(stderr, "qemu: could not open serial device '%s': %s\n",
2435 devname, strerror(errno));
2436 return -1;
2437 }
2438 index++;
2439 return 0;
2440 }
2441
2442 static int parallel_parse(const char *devname)
2443 {
2444 static int index = 0;
2445 char label[32];
2446
2447 if (strcmp(devname, "none") == 0)
2448 return 0;
2449 if (index == MAX_PARALLEL_PORTS) {
2450 fprintf(stderr, "qemu: too many parallel ports\n");
2451 exit(1);
2452 }
2453 snprintf(label, sizeof(label), "parallel%d", index);
2454 parallel_hds[index] = qemu_chr_open(label, devname, NULL);
2455 if (!parallel_hds[index]) {
2456 fprintf(stderr, "qemu: could not open parallel device '%s': %s\n",
2457 devname, strerror(errno));
2458 return -1;
2459 }
2460 index++;
2461 return 0;
2462 }
2463
2464 static int virtcon_parse(const char *devname)
2465 {
2466 static int index = 0;
2467 char label[32];
2468 QemuOpts *bus_opts, *dev_opts;
2469
2470 if (strcmp(devname, "none") == 0)
2471 return 0;
2472 if (index == MAX_VIRTIO_CONSOLES) {
2473 fprintf(stderr, "qemu: too many virtio consoles\n");
2474 exit(1);
2475 }
2476
2477 bus_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2478 qemu_opt_set(bus_opts, "driver", "virtio-serial");
2479
2480 dev_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2481 qemu_opt_set(dev_opts, "driver", "virtconsole");
2482
2483 snprintf(label, sizeof(label), "virtcon%d", index);
2484 virtcon_hds[index] = qemu_chr_open(label, devname, NULL);
2485 if (!virtcon_hds[index]) {
2486 fprintf(stderr, "qemu: could not open virtio console '%s': %s\n",
2487 devname, strerror(errno));
2488 return -1;
2489 }
2490 qemu_opt_set(dev_opts, "chardev", label);
2491
2492 index++;
2493 return 0;
2494 }
2495
2496 static int debugcon_parse(const char *devname)
2497 {
2498 QemuOpts *opts;
2499
2500 if (!qemu_chr_open("debugcon", devname, NULL)) {
2501 exit(1);
2502 }
2503 opts = qemu_opts_create(&qemu_device_opts, "debugcon", 1);
2504 if (!opts) {
2505 fprintf(stderr, "qemu: already have a debugcon device\n");
2506 exit(1);
2507 }
2508 qemu_opt_set(opts, "driver", "isa-debugcon");
2509 qemu_opt_set(opts, "chardev", "debugcon");
2510 return 0;
2511 }
2512
2513 static const QEMUOption *lookup_opt(int argc, char **argv,
2514 const char **poptarg, int *poptind)
2515 {
2516 const QEMUOption *popt;
2517 int optind = *poptind;
2518 char *r = argv[optind];
2519 const char *optarg;
2520
2521 loc_set_cmdline(argv, optind, 1);
2522 optind++;
2523 /* Treat --foo the same as -foo. */
2524 if (r[1] == '-')
2525 r++;
2526 popt = qemu_options;
2527 for(;;) {
2528 if (!popt->name) {
2529 error_report("invalid option");
2530 exit(1);
2531 }
2532 if (!strcmp(popt->name, r + 1))
2533 break;
2534 popt++;
2535 }
2536 if (popt->flags & HAS_ARG) {
2537 if (optind >= argc) {
2538 error_report("requires an argument");
2539 exit(1);
2540 }
2541 optarg = argv[optind++];
2542 loc_set_cmdline(argv, optind - 2, 2);
2543 } else {
2544 optarg = NULL;
2545 }
2546
2547 *poptarg = optarg;
2548 *poptind = optind;
2549
2550 return popt;
2551 }
2552
2553 static QemuOptDesc common_machine_opts[] = {
2554 COMMON_MACHINE_OPTS(),
2555 { /* end of list */ },
2556 };
2557
2558 int main(int argc, char **argv, char **envp)
2559 {
2560 const char *gdbstub_dev = NULL;
2561 int i;
2562 int snapshot, linux_boot;
2563 const char *icount_option = NULL;
2564 const char *initrd_filename;
2565 const char *kernel_filename, *kernel_cmdline;
2566 char boot_devices[33] = "cad"; /* default to HD->floppy->CD-ROM */
2567 DisplayState *ds;
2568 DisplayChangeListener *dcl;
2569 int cyls, heads, secs, translation;
2570 QemuOpts *hda_opts = NULL, *opts;
2571 int optind;
2572 const char *optarg;
2573 const char *loadvm = NULL;
2574 QEMUMachine *machine;
2575 const char *cpu_model;
2576 #ifndef _WIN32
2577 int fds[2];
2578 #endif
2579 int tb_size;
2580 const char *pid_file = NULL;
2581 const char *incoming = NULL;
2582 #ifndef _WIN32
2583 int fd = 0;
2584 struct passwd *pwd = NULL;
2585 const char *chroot_dir = NULL;
2586 const char *run_as = NULL;
2587 #endif
2588 int show_vnc_port = 0;
2589 int defconfig = 1;
2590
2591 error_set_progname(argv[0]);
2592
2593 init_clocks();
2594
2595 qemu_cache_utils_init(envp);
2596
2597 QLIST_INIT (&vm_change_state_head);
2598 #ifndef _WIN32
2599 {
2600 struct sigaction act;
2601 sigfillset(&act.sa_mask);
2602 act.sa_flags = 0;
2603 act.sa_handler = SIG_IGN;
2604 sigaction(SIGPIPE, &act, NULL);
2605 }
2606 #else
2607 SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE);
2608 /* Note: cpu_interrupt() is currently not SMP safe, so we force
2609 QEMU to run on a single CPU */
2610 {
2611 HANDLE h;
2612 DWORD mask, smask;
2613 int i;
2614 h = GetCurrentProcess();
2615 if (GetProcessAffinityMask(h, &mask, &smask)) {
2616 for(i = 0; i < 32; i++) {
2617 if (mask & (1 << i))
2618 break;
2619 }
2620 if (i != 32) {
2621 mask = 1 << i;
2622 SetProcessAffinityMask(h, mask);
2623 }
2624 }
2625 }
2626 #endif
2627
2628 module_call_init(MODULE_INIT_MACHINE);
2629 machine = find_default_machine();
2630 cpu_model = NULL;
2631 initrd_filename = NULL;
2632 ram_size = 0;
2633 snapshot = 0;
2634 kernel_filename = NULL;
2635 kernel_cmdline = "";
2636 cyls = heads = secs = 0;
2637 translation = BIOS_ATA_TRANSLATION_AUTO;
2638
2639 for (i = 0; i < MAX_NODES; i++) {
2640 node_mem[i] = 0;
2641 node_cpumask[i] = 0;
2642 }
2643
2644 nb_numa_nodes = 0;
2645 nb_nics = 0;
2646
2647 tb_size = 0;
2648 autostart= 1;
2649
2650 /* first pass of option parsing */
2651 optind = 1;
2652 while (optind < argc) {
2653 if (argv[optind][0] != '-') {
2654 /* disk image */
2655 optind++;
2656 continue;
2657 } else {
2658 const QEMUOption *popt;
2659
2660 popt = lookup_opt(argc, argv, &optarg, &optind);
2661 switch (popt->index) {
2662 case QEMU_OPTION_nodefconfig:
2663 defconfig=0;
2664 break;
2665 }
2666 }
2667 }
2668
2669 if (defconfig) {
2670 int ret;
2671
2672 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2673 if (ret < 0 && ret != -ENOENT) {
2674 exit(1);
2675 }
2676
2677 ret = qemu_read_config_file(arch_config_name);
2678 if (ret < 0 && ret != -ENOENT) {
2679 exit(1);
2680 }
2681 }
2682 cpudef_init();
2683
2684 /* second pass of option parsing */
2685 optind = 1;
2686 for(;;) {
2687 if (optind >= argc)
2688 break;
2689 if (argv[optind][0] != '-') {
2690 hda_opts = drive_add(argv[optind++], HD_ALIAS, 0);
2691 } else {
2692 const QEMUOption *popt;
2693
2694 popt = lookup_opt(argc, argv, &optarg, &optind);
2695 if (!(popt->arch_mask & arch_type)) {
2696 printf("Option %s not supported for this target\n", popt->name);
2697 exit(1);
2698 }
2699 switch(popt->index) {
2700 case QEMU_OPTION_M:
2701 machine = find_machine(optarg);
2702 if (!machine) {
2703 QEMUMachine *m;
2704 printf("Supported machines are:\n");
2705 for(m = first_machine; m != NULL; m = m->next) {
2706 if (m->alias)
2707 printf("%-10s %s (alias of %s)\n",
2708 m->alias, m->desc, m->name);
2709 printf("%-10s %s%s\n",
2710 m->name, m->desc,
2711 m->is_default ? " (default)" : "");
2712 }
2713 exit(*optarg != '?');
2714 }
2715 break;
2716 case QEMU_OPTION_cpu:
2717 /* hw initialization will check this */
2718 if (*optarg == '?') {
2719 list_cpus(stdout, &fprintf, optarg);
2720 exit(0);
2721 } else {
2722 cpu_model = optarg;
2723 }
2724 break;
2725 case QEMU_OPTION_initrd:
2726 initrd_filename = optarg;
2727 break;
2728 case QEMU_OPTION_hda:
2729 if (cyls == 0)
2730 hda_opts = drive_add(optarg, HD_ALIAS, 0);
2731 else
2732 hda_opts = drive_add(optarg, HD_ALIAS
2733 ",cyls=%d,heads=%d,secs=%d%s",
2734 0, cyls, heads, secs,
2735 translation == BIOS_ATA_TRANSLATION_LBA ?
2736 ",trans=lba" :
2737 translation == BIOS_ATA_TRANSLATION_NONE ?
2738 ",trans=none" : "");
2739 break;
2740 case QEMU_OPTION_hdb:
2741 case QEMU_OPTION_hdc:
2742 case QEMU_OPTION_hdd:
2743 drive_add(optarg, HD_ALIAS, popt->index - QEMU_OPTION_hda);
2744 break;
2745 case QEMU_OPTION_drive:
2746 drive_add(NULL, "%s", optarg);
2747 break;
2748 case QEMU_OPTION_set:
2749 if (qemu_set_option(optarg) != 0)
2750 exit(1);
2751 break;
2752 case QEMU_OPTION_global:
2753 if (qemu_global_option(optarg) != 0)
2754 exit(1);
2755 break;
2756 case QEMU_OPTION_mtdblock:
2757 drive_add(optarg, MTD_ALIAS);
2758 break;
2759 case QEMU_OPTION_sd:
2760 drive_add(optarg, SD_ALIAS);
2761 break;
2762 case QEMU_OPTION_pflash:
2763 drive_add(optarg, PFLASH_ALIAS);
2764 break;
2765 case QEMU_OPTION_snapshot:
2766 snapshot = 1;
2767 break;
2768 case QEMU_OPTION_hdachs:
2769 {
2770 const char *p;
2771 p = optarg;
2772 cyls = strtol(p, (char **)&p, 0);
2773 if (cyls < 1 || cyls > 16383)
2774 goto chs_fail;
2775 if (*p != ',')
2776 goto chs_fail;
2777 p++;
2778 heads = strtol(p, (char **)&p, 0);
2779 if (heads < 1 || heads > 16)
2780 goto chs_fail;
2781 if (*p != ',')
2782 goto chs_fail;
2783 p++;
2784 secs = strtol(p, (char **)&p, 0);
2785 if (secs < 1 || secs > 63)
2786 goto chs_fail;
2787 if (*p == ',') {
2788 p++;
2789 if (!strcmp(p, "none"))
2790 translation = BIOS_ATA_TRANSLATION_NONE;
2791 else if (!strcmp(p, "lba"))
2792 translation = BIOS_ATA_TRANSLATION_LBA;
2793 else if (!strcmp(p, "auto"))
2794 translation = BIOS_ATA_TRANSLATION_AUTO;
2795 else
2796 goto chs_fail;
2797 } else if (*p != '\0') {
2798 chs_fail:
2799 fprintf(stderr, "qemu: invalid physical CHS format\n");
2800 exit(1);
2801 }
2802 if (hda_opts != NULL) {
2803 char num[16];
2804 snprintf(num, sizeof(num), "%d", cyls);
2805 qemu_opt_set(hda_opts, "cyls", num);
2806 snprintf(num, sizeof(num), "%d", heads);
2807 qemu_opt_set(hda_opts, "heads", num);
2808 snprintf(num, sizeof(num), "%d", secs);
2809 qemu_opt_set(hda_opts, "secs", num);
2810 if (translation == BIOS_ATA_TRANSLATION_LBA)
2811 qemu_opt_set(hda_opts, "trans", "lba");
2812 if (translation == BIOS_ATA_TRANSLATION_NONE)
2813 qemu_opt_set(hda_opts, "trans", "none");
2814 }
2815 }
2816 break;
2817 case QEMU_OPTION_numa:
2818 if (nb_numa_nodes >= MAX_NODES) {
2819 fprintf(stderr, "qemu: too many NUMA nodes\n");
2820 exit(1);
2821 }
2822 numa_add(optarg);
2823 break;
2824 case QEMU_OPTION_nographic:
2825 display_type = DT_NOGRAPHIC;
2826 break;
2827 #ifdef CONFIG_CURSES
2828 case QEMU_OPTION_curses:
2829 display_type = DT_CURSES;
2830 break;
2831 #endif
2832 case QEMU_OPTION_portrait:
2833 graphic_rotate = 1;
2834 break;
2835 case QEMU_OPTION_kernel:
2836 kernel_filename = optarg;
2837 break;
2838 case QEMU_OPTION_append:
2839 kernel_cmdline = optarg;
2840 break;
2841 case QEMU_OPTION_cdrom:
2842 drive_add(optarg, CDROM_ALIAS);
2843 break;
2844 case QEMU_OPTION_boot:
2845 {
2846 static const char * const params[] = {
2847 "order", "once", "menu", NULL
2848 };
2849 char buf[sizeof(boot_devices)];
2850 char *standard_boot_devices;
2851 int legacy = 0;
2852
2853 if (!strchr(optarg, '=')) {
2854 legacy = 1;
2855 pstrcpy(buf, sizeof(buf), optarg);
2856 } else if (check_params(buf, sizeof(buf), params, optarg) < 0) {
2857 fprintf(stderr,
2858 "qemu: unknown boot parameter '%s' in '%s'\n",
2859 buf, optarg);
2860 exit(1);
2861 }
2862
2863 if (legacy ||
2864 get_param_value(buf, sizeof(buf), "order", optarg)) {
2865 validate_bootdevices(buf);
2866 pstrcpy(boot_devices, sizeof(boot_devices), buf);
2867 }
2868 if (!legacy) {
2869 if (get_param_value(buf, sizeof(buf),
2870 "once", optarg)) {
2871 validate_bootdevices(buf);
2872 standard_boot_devices = qemu_strdup(boot_devices);
2873 pstrcpy(boot_devices, sizeof(boot_devices), buf);
2874 qemu_register_reset(restore_boot_devices,
2875 standard_boot_devices);
2876 }
2877 if (get_param_value(buf, sizeof(buf),
2878 "menu", optarg)) {
2879 if (!strcmp(buf, "on")) {
2880 boot_menu = 1;
2881 } else if (!strcmp(buf, "off")) {
2882 boot_menu = 0;
2883 } else {
2884 fprintf(stderr,
2885 "qemu: invalid option value '%s'\n",
2886 buf);
2887 exit(1);
2888 }
2889 }
2890 }
2891 }
2892 break;
2893 case QEMU_OPTION_fda:
2894 case QEMU_OPTION_fdb:
2895 drive_add(optarg, FD_ALIAS, popt->index - QEMU_OPTION_fda);
2896 break;
2897 case QEMU_OPTION_no_fd_bootchk:
2898 fd_bootchk = 0;
2899 break;
2900 case QEMU_OPTION_netdev:
2901 if (net_client_parse(&qemu_netdev_opts, optarg) == -1) {
2902 exit(1);
2903 }
2904 break;
2905 case QEMU_OPTION_net:
2906 if (net_client_parse(&qemu_net_opts, optarg) == -1) {
2907 exit(1);
2908 }
2909 break;
2910 #ifdef CONFIG_SLIRP
2911 case QEMU_OPTION_tftp:
2912 legacy_tftp_prefix = optarg;
2913 break;
2914 case QEMU_OPTION_bootp:
2915 legacy_bootp_filename = optarg;
2916 break;
2917 #ifndef _WIN32
2918 case QEMU_OPTION_smb:
2919 if (net_slirp_smb(optarg) < 0)
2920 exit(1);
2921 break;
2922 #endif
2923 case QEMU_OPTION_redir:
2924 if (net_slirp_redir(optarg) < 0)
2925 exit(1);
2926 break;
2927 #endif
2928 case QEMU_OPTION_bt:
2929 add_device_config(DEV_BT, optarg);
2930 break;
2931 case QEMU_OPTION_audio_help:
2932 if (!(audio_available())) {
2933 printf("Option %s not supported for this target\n", popt->name);
2934 exit(1);
2935 }
2936 AUD_help ();
2937 exit (0);
2938 break;
2939 case QEMU_OPTION_soundhw:
2940 if (!(audio_available())) {
2941 printf("Option %s not supported for this target\n", popt->name);
2942 exit(1);
2943 }
2944 select_soundhw (optarg);
2945 break;
2946 case QEMU_OPTION_h:
2947 help(0);
2948 break;
2949 case QEMU_OPTION_version:
2950 version();
2951 exit(0);
2952 break;
2953 case QEMU_OPTION_m: {
2954 uint64_t value;
2955 char *ptr;
2956
2957 value = strtoul(optarg, &ptr, 10);
2958 switch (*ptr) {
2959 case 0: case 'M': case 'm':
2960 value <<= 20;
2961 break;
2962 case 'G': case 'g':
2963 value <<= 30;
2964 break;
2965 default:
2966 fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
2967 exit(1);
2968 }
2969
2970 /* On 32-bit hosts, QEMU is limited by virtual address space */
2971 if (value > (2047 << 20) && HOST_LONG_BITS == 32) {
2972 fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
2973 exit(1);
2974 }
2975 if (value != (uint64_t)(ram_addr_t)value) {
2976 fprintf(stderr, "qemu: ram size too large\n");
2977 exit(1);
2978 }
2979 ram_size = value;
2980 break;
2981 }
2982 case QEMU_OPTION_mempath:
2983 mem_path = optarg;
2984 break;
2985 #ifdef MAP_POPULATE
2986 case QEMU_OPTION_mem_prealloc:
2987 mem_prealloc = 1;
2988 break;
2989 #endif
2990 case QEMU_OPTION_d:
2991 set_cpu_log(optarg);
2992 break;
2993 case QEMU_OPTION_s:
2994 gdbstub_dev = "tcp::" DEFAULT_GDBSTUB_PORT;
2995 break;
2996 case QEMU_OPTION_gdb:
2997 gdbstub_dev = optarg;
2998 break;
2999 case QEMU_OPTION_L:
3000 data_dir = optarg;
3001 break;
3002 case QEMU_OPTION_bios:
3003 bios_name = optarg;
3004 break;
3005 case QEMU_OPTION_singlestep:
3006 singlestep = 1;
3007 break;
3008 case QEMU_OPTION_S:
3009 autostart = 0;
3010 break;
3011 case QEMU_OPTION_k:
3012 keyboard_layout = optarg;
3013 break;
3014 case QEMU_OPTION_localtime:
3015 rtc_utc = 0;
3016 break;
3017 case QEMU_OPTION_vga:
3018 select_vgahw (optarg);
3019 break;
3020 case QEMU_OPTION_g:
3021 {
3022 const char *p;
3023 int w, h, depth;
3024 p = optarg;
3025 w = strtol(p, (char **)&p, 10);
3026 if (w <= 0) {
3027 graphic_error:
3028 fprintf(stderr, "qemu: invalid resolution or depth\n");
3029 exit(1);
3030 }
3031 if (*p != 'x')
3032 goto graphic_error;
3033 p++;
3034 h = strtol(p, (char **)&p, 10);
3035 if (h <= 0)
3036 goto graphic_error;
3037 if (*p == 'x') {
3038 p++;
3039 depth = strtol(p, (char **)&p, 10);
3040 if (depth != 8 && depth != 15 && depth != 16 &&
3041 depth != 24 && depth != 32)
3042 goto graphic_error;
3043 } else if (*p == '\0') {
3044 depth = graphic_depth;
3045 } else {
3046 goto graphic_error;
3047 }
3048
3049 graphic_width = w;
3050 graphic_height = h;
3051 graphic_depth = depth;
3052 }
3053 break;
3054 case QEMU_OPTION_echr:
3055 {
3056 char *r;
3057 term_escape_char = strtol(optarg, &r, 0);
3058 if (r == optarg)
3059 printf("Bad argument to echr\n");
3060 break;
3061 }
3062 case QEMU_OPTION_monitor:
3063 monitor_parse(optarg, "readline");
3064 default_monitor = 0;
3065 break;
3066 case QEMU_OPTION_qmp:
3067 monitor_parse(optarg, "control");
3068 default_monitor = 0;
3069 break;
3070 case QEMU_OPTION_mon:
3071 opts = qemu_opts_parse(&qemu_mon_opts, optarg, 1);
3072 if (!opts) {
3073 exit(1);
3074 }
3075 default_monitor = 0;
3076 break;
3077 case QEMU_OPTION_chardev:
3078 opts = qemu_opts_parse(&qemu_chardev_opts, optarg, 1);
3079 if (!opts) {
3080 exit(1);
3081 }
3082 break;
3083 #ifdef CONFIG_LINUX
3084 case QEMU_OPTION_fsdev:
3085 opts = qemu_opts_parse(&qemu_fsdev_opts, optarg, 1);
3086 if (!opts) {
3087 fprintf(stderr, "parse error: %s\n", optarg);
3088 exit(1);
3089 }
3090 break;
3091 case QEMU_OPTION_virtfs: {
3092 char *arg_fsdev = NULL;
3093 char *arg_9p = NULL;
3094 int len = 0;
3095
3096 opts = qemu_opts_parse(&qemu_virtfs_opts, optarg, 1);
3097 if (!opts) {
3098 fprintf(stderr, "parse error: %s\n", optarg);
3099 exit(1);
3100 }
3101
3102 len = strlen(",id=,path=");
3103 len += strlen(qemu_opt_get(opts, "fstype"));
3104 len += strlen(qemu_opt_get(opts, "mount_tag"));
3105 len += strlen(qemu_opt_get(opts, "path"));
3106 arg_fsdev = qemu_malloc((len + 1) * sizeof(*arg_fsdev));
3107
3108 if (!arg_fsdev) {
3109 fprintf(stderr, "No memory to parse -fsdev for %s\n",
3110 optarg);
3111 exit(1);
3112 }
3113
3114 sprintf(arg_fsdev, "%s,id=%s,path=%s",
3115 qemu_opt_get(opts, "fstype"),
3116 qemu_opt_get(opts, "mount_tag"),
3117 qemu_opt_get(opts, "path"));
3118
3119 len = strlen("virtio-9p-pci,fsdev=,mount_tag=");
3120 len += 2*strlen(qemu_opt_get(opts, "mount_tag"));
3121 arg_9p = qemu_malloc((len + 1) * sizeof(*arg_9p));
3122
3123 if (!arg_9p) {
3124 fprintf(stderr, "No memory to parse -device for %s\n",
3125 optarg);
3126 exit(1);
3127 }
3128
3129 sprintf(arg_9p, "virtio-9p-pci,fsdev=%s,mount_tag=%s",
3130 qemu_opt_get(opts, "mount_tag"),
3131 qemu_opt_get(opts, "mount_tag"));
3132
3133 if (!qemu_opts_parse(&qemu_fsdev_opts, arg_fsdev, 1)) {
3134 fprintf(stderr, "parse error [fsdev]: %s\n", optarg);
3135 exit(1);
3136 }
3137
3138 if (!qemu_opts_parse(&qemu_device_opts, arg_9p, 1)) {
3139 fprintf(stderr, "parse error [device]: %s\n", optarg);
3140 exit(1);
3141 }
3142
3143 qemu_free(arg_fsdev);
3144 qemu_free(arg_9p);
3145 break;
3146 }
3147 #endif
3148 case QEMU_OPTION_serial:
3149 add_device_config(DEV_SERIAL, optarg);
3150 default_serial = 0;
3151 if (strncmp(optarg, "mon:", 4) == 0) {
3152 default_monitor = 0;
3153 }
3154 break;
3155 case QEMU_OPTION_watchdog:
3156 if (watchdog) {
3157 fprintf(stderr,
3158 "qemu: only one watchdog option may be given\n");
3159 return 1;
3160 }
3161 watchdog = optarg;
3162 break;
3163 case QEMU_OPTION_watchdog_action:
3164 if (select_watchdog_action(optarg) == -1) {
3165 fprintf(stderr, "Unknown -watchdog-action parameter\n");
3166 exit(1);
3167 }
3168 break;
3169 case QEMU_OPTION_virtiocon:
3170 add_device_config(DEV_VIRTCON, optarg);
3171 default_virtcon = 0;
3172 if (strncmp(optarg, "mon:", 4) == 0) {
3173 default_monitor = 0;
3174 }
3175 break;
3176 case QEMU_OPTION_parallel:
3177 add_device_config(DEV_PARALLEL, optarg);
3178 default_parallel = 0;
3179 if (strncmp(optarg, "mon:", 4) == 0) {
3180 default_monitor = 0;
3181 }
3182 break;
3183 case QEMU_OPTION_debugcon:
3184 add_device_config(DEV_DEBUGCON, optarg);
3185 break;
3186 case QEMU_OPTION_loadvm:
3187 loadvm = optarg;
3188 break;
3189 case QEMU_OPTION_full_screen:
3190 full_screen = 1;
3191 break;
3192 #ifdef CONFIG_SDL
3193 case QEMU_OPTION_no_frame:
3194 no_frame = 1;
3195 break;
3196 case QEMU_OPTION_alt_grab:
3197 alt_grab = 1;
3198 break;
3199 case QEMU_OPTION_ctrl_grab:
3200 ctrl_grab = 1;
3201 break;
3202 case QEMU_OPTION_no_quit:
3203 no_quit = 1;
3204 break;
3205 case QEMU_OPTION_sdl:
3206 display_type = DT_SDL;
3207 break;
3208 #endif
3209 case QEMU_OPTION_pidfile:
3210 pid_file = optarg;
3211 break;
3212 case QEMU_OPTION_win2k_hack:
3213 win2k_install_hack = 1;
3214 break;
3215 case QEMU_OPTION_rtc_td_hack:
3216 rtc_td_hack = 1;
3217 break;
3218 case QEMU_OPTION_acpitable:
3219 do_acpitable_option(optarg);
3220 break;
3221 case QEMU_OPTION_smbios:
3222 do_smbios_option(optarg);
3223 break;
3224 case QEMU_OPTION_enable_kvm:
3225 kvm_allowed = 1;
3226 break;
3227 case QEMU_OPTION_usb:
3228 usb_enabled = 1;
3229 break;
3230 case QEMU_OPTION_usbdevice:
3231 usb_enabled = 1;
3232 add_device_config(DEV_USB, optarg);
3233 break;
3234 case QEMU_OPTION_device:
3235 if (!qemu_opts_parse(&qemu_device_opts, optarg, 1)) {
3236 exit(1);
3237 }
3238 break;
3239 case QEMU_OPTION_smp:
3240 smp_parse(optarg);
3241 if (smp_cpus < 1) {
3242 fprintf(stderr, "Invalid number of CPUs\n");
3243 exit(1);
3244 }
3245 if (max_cpus < smp_cpus) {
3246 fprintf(stderr, "maxcpus must be equal to or greater than "
3247 "smp\n");
3248 exit(1);
3249 }
3250 if (max_cpus > 255) {
3251 fprintf(stderr, "Unsupported number of maxcpus\n");
3252 exit(1);
3253 }
3254 break;
3255 case QEMU_OPTION_vnc:
3256 display_type = DT_VNC;
3257 vnc_display = optarg;
3258 break;
3259 case QEMU_OPTION_no_acpi:
3260 acpi_enabled = 0;
3261 break;
3262 case QEMU_OPTION_no_hpet:
3263 no_hpet = 1;
3264 break;
3265 case QEMU_OPTION_balloon:
3266 if (balloon_parse(optarg) < 0) {
3267 fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
3268 exit(1);
3269 }
3270 break;
3271 case QEMU_OPTION_no_reboot:
3272 no_reboot = 1;
3273 break;
3274 case QEMU_OPTION_no_shutdown:
3275 no_shutdown = 1;
3276 break;
3277 case QEMU_OPTION_show_cursor:
3278 cursor_hide = 0;
3279 break;
3280 case QEMU_OPTION_uuid:
3281 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
3282 fprintf(stderr, "Fail to parse UUID string."
3283 " Wrong format.\n");
3284 exit(1);
3285 }
3286 break;
3287 #ifndef _WIN32
3288 case QEMU_OPTION_daemonize:
3289 daemonize = 1;
3290 break;
3291 #endif
3292 case QEMU_OPTION_option_rom:
3293 if (nb_option_roms >= MAX_OPTION_ROMS) {
3294 fprintf(stderr, "Too many option ROMs\n");
3295 exit(1);
3296 }
3297 option_rom[nb_option_roms] = optarg;
3298 nb_option_roms++;
3299 break;
3300 case QEMU_OPTION_semihosting:
3301 semihosting_enabled = 1;
3302 break;
3303 case QEMU_OPTION_name:
3304 qemu_name = qemu_strdup(optarg);
3305 {
3306 char *p = strchr(qemu_name, ',');
3307 if (p != NULL) {
3308 *p++ = 0;
3309 if (strncmp(p, "process=", 8)) {
3310 fprintf(stderr, "Unknown subargument %s to -name", p);
3311 exit(1);
3312 }
3313 p += 8;
3314 set_proc_name(p);
3315 }
3316 }
3317 break;
3318 case QEMU_OPTION_prom_env:
3319 if (nb_prom_envs >= MAX_PROM_ENVS) {
3320 fprintf(stderr, "Too many prom variables\n");
3321 exit(1);
3322 }
3323 prom_envs[nb_prom_envs] = optarg;
3324 nb_prom_envs++;
3325 break;
3326 case QEMU_OPTION_old_param:
3327 old_param = 1;
3328 break;
3329 case QEMU_OPTION_clock:
3330 configure_alarms(optarg);
3331 break;
3332 case QEMU_OPTION_startdate:
3333 configure_rtc_date_offset(optarg, 1);
3334 break;
3335 case QEMU_OPTION_rtc:
3336 opts = qemu_opts_parse(&qemu_rtc_opts, optarg, 0);
3337 if (!opts) {
3338 exit(1);
3339 }
3340 configure_rtc(opts);
3341 break;
3342 case QEMU_OPTION_tb_size:
3343 tb_size = strtol(optarg, NULL, 0);
3344 if (tb_size < 0)
3345 tb_size = 0;
3346 break;
3347 case QEMU_OPTION_icount:
3348 icount_option = optarg;
3349 break;
3350 case QEMU_OPTION_incoming:
3351 incoming = optarg;
3352 break;
3353 case QEMU_OPTION_nodefaults:
3354 default_serial = 0;
3355 default_parallel = 0;
3356 default_virtcon = 0;
3357 default_monitor = 0;
3358 default_vga = 0;
3359 default_net = 0;
3360 default_floppy = 0;
3361 default_cdrom = 0;
3362 default_sdcard = 0;
3363 break;
3364 #ifndef _WIN32
3365 case QEMU_OPTION_chroot:
3366 chroot_dir = optarg;
3367 break;
3368 case QEMU_OPTION_runas:
3369 run_as = optarg;
3370 break;
3371 #endif
3372 case QEMU_OPTION_xen_domid:
3373 if (!(xen_available())) {
3374 printf("Option %s not supported for this target\n", popt->name);
3375 exit(1);
3376 }
3377 xen_domid = atoi(optarg);
3378 break;
3379 case QEMU_OPTION_xen_create:
3380 if (!(xen_available())) {
3381 printf("Option %s not supported for this target\n", popt->name);
3382 exit(1);
3383 }
3384 xen_mode = XEN_CREATE;
3385 break;
3386 case QEMU_OPTION_xen_attach:
3387 if (!(xen_available())) {
3388 printf("Option %s not supported for this target\n", popt->name);
3389 exit(1);
3390 }
3391 xen_mode = XEN_ATTACH;
3392 break;
3393 case QEMU_OPTION_readconfig:
3394 {
3395 int ret = qemu_read_config_file(optarg);
3396 if (ret < 0) {
3397 fprintf(stderr, "read config %s: %s\n", optarg,
3398 strerror(-ret));
3399 exit(1);
3400 }
3401 break;
3402 }
3403 case QEMU_OPTION_writeconfig:
3404 {
3405 FILE *fp;
3406 if (strcmp(optarg, "-") == 0) {
3407 fp = stdout;
3408 } else {
3409 fp = fopen(optarg, "w");
3410 if (fp == NULL) {
3411 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
3412 exit(1);
3413 }
3414 }
3415 qemu_config_write(fp);
3416 fclose(fp);
3417 break;
3418 }
3419 }
3420 }
3421 }
3422 loc_set_none();
3423
3424 /* If no data_dir is specified then try to find it relative to the
3425 executable path. */
3426 if (!data_dir) {
3427 data_dir = find_datadir(argv[0]);
3428 }
3429 /* If all else fails use the install patch specified when building. */
3430 if (!data_dir) {
3431 data_dir = CONFIG_QEMU_SHAREDIR;
3432 }
3433
3434 /*
3435 * Default to max_cpus = smp_cpus, in case the user doesn't
3436 * specify a max_cpus value.
3437 */
3438 if (!max_cpus)
3439 max_cpus = smp_cpus;
3440
3441 machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
3442 if (smp_cpus > machine->max_cpus) {
3443 fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
3444 "supported by machine `%s' (%d)\n", smp_cpus, machine->name,
3445 machine->max_cpus);
3446 exit(1);
3447 }
3448
3449 qemu_opts_foreach(&qemu_device_opts, default_driver_check, NULL, 0);
3450 qemu_opts_foreach(&qemu_global_opts, default_driver_check, NULL, 0);
3451
3452 if (machine->no_serial) {
3453 default_serial = 0;
3454 }
3455 if (machine->no_parallel) {
3456 default_parallel = 0;
3457 }
3458 if (!machine->use_virtcon) {
3459 default_virtcon = 0;
3460 }
3461 if (machine->no_vga) {
3462 default_vga = 0;
3463 }
3464 if (machine->no_floppy) {
3465 default_floppy = 0;
3466 }
3467 if (machine->no_cdrom) {
3468 default_cdrom = 0;
3469 }
3470 if (machine->no_sdcard) {
3471 default_sdcard = 0;
3472 }
3473
3474 if (display_type == DT_NOGRAPHIC) {
3475 if (default_parallel)
3476 add_device_config(DEV_PARALLEL, "null");
3477 if (default_serial && default_monitor) {
3478 add_device_config(DEV_SERIAL, "mon:stdio");
3479 } else if (default_virtcon && default_monitor) {
3480 add_device_config(DEV_VIRTCON, "mon:stdio");
3481 } else {
3482 if (default_serial)
3483 add_device_config(DEV_SERIAL, "stdio");
3484 if (default_virtcon)
3485 add_device_config(DEV_VIRTCON, "stdio");
3486 if (default_monitor)
3487 monitor_parse("stdio", "readline");
3488 }
3489 } else {
3490 if (default_serial)
3491 add_device_config(DEV_SERIAL, "vc:80Cx24C");
3492 if (default_parallel)
3493 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
3494 if (default_monitor)
3495 monitor_parse("vc:80Cx24C", "readline");
3496 if (default_virtcon)
3497 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
3498 }
3499 if (default_vga)
3500 vga_interface_type = VGA_CIRRUS;
3501
3502 socket_init();
3503
3504 if (qemu_opts_foreach(&qemu_chardev_opts, chardev_init_func, NULL, 1) != 0)
3505 exit(1);
3506 #ifdef CONFIG_LINUX
3507 if (qemu_opts_foreach(&qemu_fsdev_opts, fsdev_init_func, NULL, 1) != 0) {
3508 exit(1);
3509 }
3510 #endif
3511
3512 #ifndef _WIN32
3513 if (daemonize) {
3514 pid_t pid;
3515
3516 if (pipe(fds) == -1)
3517 exit(1);
3518
3519 pid = fork();
3520 if (pid > 0) {
3521 uint8_t status;
3522 ssize_t len;
3523
3524 close(fds[1]);
3525
3526 again:
3527 len = read(fds[0], &status, 1);
3528 if (len == -1 && (errno == EINTR))
3529 goto again;
3530
3531 if (len != 1)
3532 exit(1);
3533 else if (status == 1) {
3534 fprintf(stderr, "Could not acquire pidfile: %s\n", strerror(errno));
3535 exit(1);
3536 } else
3537 exit(0);
3538 } else if (pid < 0)
3539 exit(1);
3540
3541 close(fds[0]);
3542 qemu_set_cloexec(fds[1]);
3543
3544 setsid();
3545
3546 pid = fork();
3547 if (pid > 0)
3548 exit(0);
3549 else if (pid < 0)
3550 exit(1);
3551
3552 umask(027);
3553
3554 signal(SIGTSTP, SIG_IGN);
3555 signal(SIGTTOU, SIG_IGN);
3556 signal(SIGTTIN, SIG_IGN);
3557 }
3558 #endif
3559
3560 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
3561 #ifndef _WIN32
3562 if (daemonize) {
3563 uint8_t status = 1;
3564 if (write(fds[1], &status, 1) != 1) {
3565 perror("daemonize. Writing to pipe\n");
3566 }
3567 } else
3568 #endif
3569 fprintf(stderr, "Could not acquire pid file: %s\n", strerror(errno));
3570 exit(1);
3571 }
3572
3573 if (kvm_allowed) {
3574 int ret = kvm_init(smp_cpus);
3575 if (ret < 0) {
3576 if (!kvm_available()) {
3577 printf("KVM not supported for this target\n");
3578 } else {
3579 fprintf(stderr, "failed to initialize KVM: %s\n", strerror(-ret));
3580 }
3581 exit(1);
3582 }
3583 }
3584
3585 if (qemu_init_main_loop()) {
3586 fprintf(stderr, "qemu_init_main_loop failed\n");
3587 exit(1);
3588 }
3589 linux_boot = (kernel_filename != NULL);
3590
3591 if (!linux_boot && *kernel_cmdline != '\0') {
3592 fprintf(stderr, "-append only allowed with -kernel option\n");
3593 exit(1);
3594 }
3595
3596 if (!linux_boot && initrd_filename != NULL) {
3597 fprintf(stderr, "-initrd only allowed with -kernel option\n");
3598 exit(1);
3599 }
3600
3601 #ifndef _WIN32
3602 /* Win32 doesn't support line-buffering and requires size >= 2 */
3603 setvbuf(stdout, NULL, _IOLBF, 0);
3604 #endif
3605
3606 if (init_timer_alarm() < 0) {
3607 fprintf(stderr, "could not initialize alarm timer\n");
3608 exit(1);
3609 }
3610 configure_icount(icount_option);
3611
3612 if (net_init_clients() < 0) {
3613 exit(1);
3614 }
3615
3616 /* init the bluetooth world */
3617 if (foreach_device_config(DEV_BT, bt_parse))
3618 exit(1);
3619
3620 /* init the memory */
3621 if (ram_size == 0)
3622 ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
3623
3624 /* init the dynamic translator */
3625 cpu_exec_init_all(tb_size * 1024 * 1024);
3626
3627 bdrv_init_with_whitelist();
3628
3629 blk_mig_init();
3630
3631 if (default_cdrom) {
3632 /* we always create the cdrom drive, even if no disk is there */
3633 drive_add(NULL, CDROM_ALIAS);
3634 }
3635
3636 if (default_floppy) {
3637 /* we always create at least one floppy */
3638 drive_add(NULL, FD_ALIAS, 0);
3639 }
3640
3641 if (default_sdcard) {
3642 /* we always create one sd slot, even if no card is in it */
3643 drive_add(NULL, SD_ALIAS);
3644 }
3645
3646 /* open the virtual block devices */
3647 if (snapshot)
3648 qemu_opts_foreach(&qemu_drive_opts, drive_enable_snapshot, NULL, 0);
3649 if (qemu_opts_foreach(&qemu_drive_opts, drive_init_func, machine, 1) != 0)
3650 exit(1);
3651
3652 register_savevm_live("ram", 0, 3, NULL, ram_save_live, NULL,
3653 ram_load, NULL);
3654
3655 if (nb_numa_nodes > 0) {
3656 int i;
3657
3658 if (nb_numa_nodes > smp_cpus) {
3659 nb_numa_nodes = smp_cpus;
3660 }
3661
3662 /* If no memory size if given for any node, assume the default case
3663 * and distribute the available memory equally across all nodes
3664 */
3665 for (i = 0; i < nb_numa_nodes; i++) {
3666 if (node_mem[i] != 0)
3667 break;
3668 }
3669 if (i == nb_numa_nodes) {
3670 uint64_t usedmem = 0;
3671
3672 /* On Linux, the each node's border has to be 8MB aligned,
3673 * the final node gets the rest.
3674 */
3675 for (i = 0; i < nb_numa_nodes - 1; i++) {
3676 node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1);
3677 usedmem += node_mem[i];
3678 }
3679 node_mem[i] = ram_size - usedmem;
3680 }
3681
3682 for (i = 0; i < nb_numa_nodes; i++) {
3683 if (node_cpumask[i] != 0)
3684 break;
3685 }
3686 /* assigning the VCPUs round-robin is easier to implement, guest OSes
3687 * must cope with this anyway, because there are BIOSes out there in
3688 * real machines which also use this scheme.
3689 */
3690 if (i == nb_numa_nodes) {
3691 for (i = 0; i < smp_cpus; i++) {
3692 node_cpumask[i % nb_numa_nodes] |= 1 << i;
3693 }
3694 }
3695 }
3696
3697 if (qemu_opts_foreach(&qemu_mon_opts, mon_init_func, NULL, 1) != 0) {
3698 exit(1);
3699 }
3700
3701 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
3702 exit(1);
3703 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
3704 exit(1);
3705 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
3706 exit(1);
3707 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
3708 exit(1);
3709
3710 module_call_init(MODULE_INIT_DEVICE);
3711
3712 if (qemu_opts_foreach(&qemu_device_opts, device_help_func, NULL, 0) != 0)
3713 exit(0);
3714
3715 if (watchdog) {
3716 i = select_watchdog(watchdog);
3717 if (i > 0)
3718 exit (i == 1 ? 1 : 0);
3719 }
3720
3721 if (machine->compat_props) {
3722 qdev_prop_register_global_list(machine->compat_props);
3723 }
3724 qemu_add_globals();
3725
3726 opts = qemu_opts_create(&qemu_machine_opts, NULL, 0);
3727 if (kernel_filename) {
3728 qemu_opt_set(opts, "kernel", kernel_filename);
3729 if (kernel_cmdline) {
3730 qemu_opt_set(opts, "cmdline", kernel_cmdline);
3731 }
3732 if (initrd_filename) {
3733 qemu_opt_set(opts, "initrd", initrd_filename);
3734 }
3735 }
3736
3737 qemu_opt_set(opts, "boot_device", boot_devices);
3738
3739 if (cpu_model) {
3740 qemu_opt_set(opts, "cpu", cpu_model);
3741 }
3742
3743 if (ram_size) {
3744 char buffer[64];
3745 snprintf(buffer, sizeof(buffer),
3746 "%" PRId64, ram_size);
3747 qemu_opt_set(opts, "ram_size", buffer);
3748 }
3749
3750 if (acpi_enabled == 0) {
3751 qemu_opt_set(opts, "acpi", "off");
3752 }
3753
3754 if (machine->opts_desc) {
3755 if (qemu_opts_validate(opts, machine->opts_desc) < 0) {
3756 exit(1);
3757 }
3758 } else {
3759 if (qemu_opts_validate(opts, common_machine_opts) < 0) {
3760 exit(1);
3761 }
3762 }
3763
3764 machine->init(machine, opts);
3765
3766 qemu_opts_del(opts);
3767
3768 cpu_synchronize_all_post_init();
3769
3770 #ifndef _WIN32
3771 /* must be after terminal init, SDL library changes signal handlers */
3772 sighandler_setup();
3773 #endif
3774
3775 set_numa_modes();
3776
3777 current_machine = machine;
3778
3779 /* init USB devices */
3780 if (usb_enabled) {
3781 if (foreach_device_config(DEV_USB, usb_parse) < 0)
3782 exit(1);
3783 }
3784
3785 /* init generic devices */
3786 if (qemu_opts_foreach(&qemu_device_opts, device_init_func, NULL, 1) != 0)
3787 exit(1);
3788
3789 net_check_clients();
3790
3791 /* just use the first displaystate for the moment */
3792 ds = get_displaystate();
3793
3794 if (display_type == DT_DEFAULT) {
3795 #if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
3796 display_type = DT_SDL;
3797 #else
3798 display_type = DT_VNC;
3799 vnc_display = "localhost:0,to=99";
3800 show_vnc_port = 1;
3801 #endif
3802 }
3803
3804
3805 switch (display_type) {
3806 case DT_NOGRAPHIC:
3807 break;
3808 #if defined(CONFIG_CURSES)
3809 case DT_CURSES:
3810 curses_display_init(ds, full_screen);
3811 break;
3812 #endif
3813 #if defined(CONFIG_SDL)
3814 case DT_SDL:
3815 sdl_display_init(ds, full_screen, no_frame);
3816 break;
3817 #elif defined(CONFIG_COCOA)
3818 case DT_SDL:
3819 cocoa_display_init(ds, full_screen);
3820 break;
3821 #endif
3822 case DT_VNC:
3823 vnc_display_init(ds);
3824 if (vnc_display_open(ds, vnc_display) < 0)
3825 exit(1);
3826
3827 if (show_vnc_port) {
3828 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
3829 }
3830 break;
3831 default:
3832 break;
3833 }
3834 dpy_resize(ds);
3835
3836 dcl = ds->listeners;
3837 while (dcl != NULL) {
3838 if (dcl->dpy_refresh != NULL) {
3839 ds->gui_timer = qemu_new_timer(rt_clock, gui_update, ds);
3840 qemu_mod_timer(ds->gui_timer, qemu_get_clock(rt_clock));
3841 }
3842 dcl = dcl->next;
3843 }
3844
3845 if (display_type == DT_NOGRAPHIC || display_type == DT_VNC) {
3846 nographic_timer = qemu_new_timer(rt_clock, nographic_update, NULL);
3847 qemu_mod_timer(nographic_timer, qemu_get_clock(rt_clock));
3848 }
3849
3850 text_consoles_set_display(ds);
3851
3852 if (gdbstub_dev && gdbserver_start(gdbstub_dev) < 0) {
3853 fprintf(stderr, "qemu: could not open gdbserver on device '%s'\n",
3854 gdbstub_dev);
3855 exit(1);
3856 }
3857
3858 qdev_machine_creation_done();
3859
3860 if (rom_load_all() != 0) {
3861 fprintf(stderr, "rom loading failed\n");
3862 exit(1);
3863 }
3864
3865 qemu_system_reset();
3866 if (loadvm) {
3867 if (load_vmstate(loadvm) < 0) {
3868 autostart = 0;
3869 }
3870 }
3871
3872 if (incoming) {
3873 qemu_start_incoming_migration(incoming);
3874 } else if (autostart) {
3875 vm_start();
3876 }
3877
3878 #ifndef _WIN32
3879 if (daemonize) {
3880 uint8_t status = 0;
3881 ssize_t len;
3882
3883 again1:
3884 len = write(fds[1], &status, 1);
3885 if (len == -1 && (errno == EINTR))
3886 goto again1;
3887
3888 if (len != 1)
3889 exit(1);
3890
3891 if (chdir("/")) {
3892 perror("not able to chdir to /");
3893 exit(1);
3894 }
3895 TFR(fd = qemu_open("/dev/null", O_RDWR));
3896 if (fd == -1)
3897 exit(1);
3898 }
3899
3900 if (run_as) {
3901 pwd = getpwnam(run_as);
3902 if (!pwd) {
3903 fprintf(stderr, "User \"%s\" doesn't exist\n", run_as);
3904 exit(1);
3905 }
3906 }
3907
3908 if (chroot_dir) {
3909 if (chroot(chroot_dir) < 0) {
3910 fprintf(stderr, "chroot failed\n");
3911 exit(1);
3912 }
3913 if (chdir("/")) {
3914 perror("not able to chdir to /");
3915 exit(1);
3916 }
3917 }
3918
3919 if (run_as) {
3920 if (setgid(pwd->pw_gid) < 0) {
3921 fprintf(stderr, "Failed to setgid(%d)\n", pwd->pw_gid);
3922 exit(1);
3923 }
3924 if (setuid(pwd->pw_uid) < 0) {
3925 fprintf(stderr, "Failed to setuid(%d)\n", pwd->pw_uid);
3926 exit(1);
3927 }
3928 if (setuid(0) != -1) {
3929 fprintf(stderr, "Dropping privileges failed\n");
3930 exit(1);
3931 }
3932 }
3933
3934 if (daemonize) {
3935 dup2(fd, 0);
3936 dup2(fd, 1);
3937 dup2(fd, 2);
3938
3939 close(fd);
3940 }
3941 #endif
3942
3943 main_loop();
3944 quit_timers();
3945 net_cleanup();
3946
3947 return 0;
3948 }
Anthony Liguori's QEMU queue