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blockdev: Belatedly remove MAX_DRIVES
[qemu.git] / vl.c
blobf8d3034ec893ee1c4a81e6f790d02a973cb6f09d
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 struct drivelist drives = QTAILQ_HEAD_INITIALIZER(drives);
176 struct driveoptlist driveopts = QTAILQ_HEAD_INITIALIZER(driveopts);
177 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
178 DisplayType display_type = DT_DEFAULT;
179 const char* keyboard_layout = NULL;
180 ram_addr_t ram_size;
181 const char *mem_path = NULL;
182 #ifdef MAP_POPULATE
183 int mem_prealloc = 0; /* force preallocation of physical target memory */
184 #endif
185 int nb_nics;
186 NICInfo nd_table[MAX_NICS];
187 int vm_running;
188 int autostart;
189 static int rtc_utc = 1;
190 static int rtc_date_offset = -1; /* -1 means no change */
191 QEMUClock *rtc_clock;
192 int vga_interface_type = VGA_NONE;
193 static int full_screen = 0;
194 #ifdef CONFIG_SDL
195 static int no_frame = 0;
196 #endif
197 int no_quit = 0;
198 CharDriverState *serial_hds[MAX_SERIAL_PORTS];
199 CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
200 CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES];
201 int win2k_install_hack = 0;
202 int rtc_td_hack = 0;
203 int usb_enabled = 0;
204 int singlestep = 0;
205 int smp_cpus = 1;
206 int max_cpus = 0;
207 int smp_cores = 1;
208 int smp_threads = 1;
209 const char *vnc_display;
210 int acpi_enabled = 1;
211 int no_hpet = 0;
212 int fd_bootchk = 1;
213 int no_reboot = 0;
214 int no_shutdown = 0;
215 int cursor_hide = 1;
216 int graphic_rotate = 0;
217 uint8_t irq0override = 1;
218 #ifndef _WIN32
219 int daemonize = 0;
220 #endif
221 const char *watchdog;
222 const char *option_rom[MAX_OPTION_ROMS];
223 int nb_option_roms;
224 int semihosting_enabled = 0;
225 int old_param = 0;
226 const char *qemu_name;
227 int alt_grab = 0;
228 int ctrl_grab = 0;
229 unsigned int nb_prom_envs = 0;
230 const char *prom_envs[MAX_PROM_ENVS];
231 int boot_menu;
232
233 int nb_numa_nodes;
234 uint64_t node_mem[MAX_NODES];
235 uint64_t node_cpumask[MAX_NODES];
236
237 static QEMUTimer *nographic_timer;
238
239 uint8_t qemu_uuid[16];
240
241 static QEMUBootSetHandler *boot_set_handler;
242 static void *boot_set_opaque;
243
244 int kvm_allowed = 0;
245 uint32_t xen_domid;
246 enum xen_mode xen_mode = XEN_EMULATE;
247
248 static int default_serial = 1;
249 static int default_parallel = 1;
250 static int default_virtcon = 1;
251 static int default_monitor = 1;
252 static int default_vga = 1;
253 static int default_floppy = 1;
254 static int default_cdrom = 1;
255 static int default_sdcard = 1;
256
257 static struct {
258 const char *driver;
259 int *flag;
260 } default_list[] = {
261 { .driver = "isa-serial", .flag = &default_serial },
262 { .driver = "isa-parallel", .flag = &default_parallel },
263 { .driver = "isa-fdc", .flag = &default_floppy },
264 { .driver = "ide-drive", .flag = &default_cdrom },
265 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
266 { .driver = "virtio-serial-s390", .flag = &default_virtcon },
267 { .driver = "virtio-serial", .flag = &default_virtcon },
268 { .driver = "VGA", .flag = &default_vga },
269 { .driver = "cirrus-vga", .flag = &default_vga },
270 { .driver = "vmware-svga", .flag = &default_vga },
271 };
272
273 static int default_driver_check(QemuOpts *opts, void *opaque)
274 {
275 const char *driver = qemu_opt_get(opts, "driver");
276 int i;
277
278 if (!driver)
279 return 0;
280 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
281 if (strcmp(default_list[i].driver, driver) != 0)
282 continue;
283 *(default_list[i].flag) = 0;
284 }
285 return 0;
286 }
287
288 /***********************************************************/
289
290 static void set_proc_name(const char *s)
291 {
292 #if defined(__linux__) && defined(PR_SET_NAME)
293 char name[16];
294 if (!s)
295 return;
296 name[sizeof(name) - 1] = 0;
297 strncpy(name, s, sizeof(name));
298 /* Could rewrite argv[0] too, but that's a bit more complicated.
299 This simple way is enough for `top'. */
300 prctl(PR_SET_NAME, name);
301 #endif
302 }
303
304 /***********************************************************/
305 /* real time host monotonic timer */
306
307 /* compute with 96 bit intermediate result: (a*b)/c */
308 uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
309 {
310 union {
311 uint64_t ll;
312 struct {
313 #ifdef HOST_WORDS_BIGENDIAN
314 uint32_t high, low;
315 #else
316 uint32_t low, high;
317 #endif
318 } l;
319 } u, res;
320 uint64_t rl, rh;
321
322 u.ll = a;
323 rl = (uint64_t)u.l.low * (uint64_t)b;
324 rh = (uint64_t)u.l.high * (uint64_t)b;
325 rh += (rl >> 32);
326 res.l.high = rh / c;
327 res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
328 return res.ll;
329 }
330
331 /***********************************************************/
332 /* host time/date access */
333 void qemu_get_timedate(struct tm *tm, int offset)
334 {
335 time_t ti;
336 struct tm *ret;
337
338 time(&ti);
339 ti += offset;
340 if (rtc_date_offset == -1) {
341 if (rtc_utc)
342 ret = gmtime(&ti);
343 else
344 ret = localtime(&ti);
345 } else {
346 ti -= rtc_date_offset;
347 ret = gmtime(&ti);
348 }
349
350 memcpy(tm, ret, sizeof(struct tm));
351 }
352
353 int qemu_timedate_diff(struct tm *tm)
354 {
355 time_t seconds;
356
357 if (rtc_date_offset == -1)
358 if (rtc_utc)
359 seconds = mktimegm(tm);
360 else
361 seconds = mktime(tm);
362 else
363 seconds = mktimegm(tm) + rtc_date_offset;
364
365 return seconds - time(NULL);
366 }
367
368 void rtc_change_mon_event(struct tm *tm)
369 {
370 QObject *data;
371
372 data = qobject_from_jsonf("{ 'offset': %d }", qemu_timedate_diff(tm));
373 monitor_protocol_event(QEVENT_RTC_CHANGE, data);
374 qobject_decref(data);
375 }
376
377 static void configure_rtc_date_offset(const char *startdate, int legacy)
378 {
379 time_t rtc_start_date;
380 struct tm tm;
381
382 if (!strcmp(startdate, "now") && legacy) {
383 rtc_date_offset = -1;
384 } else {
385 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
386 &tm.tm_year,
387 &tm.tm_mon,
388 &tm.tm_mday,
389 &tm.tm_hour,
390 &tm.tm_min,
391 &tm.tm_sec) == 6) {
392 /* OK */
393 } else if (sscanf(startdate, "%d-%d-%d",
394 &tm.tm_year,
395 &tm.tm_mon,
396 &tm.tm_mday) == 3) {
397 tm.tm_hour = 0;
398 tm.tm_min = 0;
399 tm.tm_sec = 0;
400 } else {
401 goto date_fail;
402 }
403 tm.tm_year -= 1900;
404 tm.tm_mon--;
405 rtc_start_date = mktimegm(&tm);
406 if (rtc_start_date == -1) {
407 date_fail:
408 fprintf(stderr, "Invalid date format. Valid formats are:\n"
409 "'2006-06-17T16:01:21' or '2006-06-17'\n");
410 exit(1);
411 }
412 rtc_date_offset = time(NULL) - rtc_start_date;
413 }
414 }
415
416 static void configure_rtc(QemuOpts *opts)
417 {
418 const char *value;
419
420 value = qemu_opt_get(opts, "base");
421 if (value) {
422 if (!strcmp(value, "utc")) {
423 rtc_utc = 1;
424 } else if (!strcmp(value, "localtime")) {
425 rtc_utc = 0;
426 } else {
427 configure_rtc_date_offset(value, 0);
428 }
429 }
430 value = qemu_opt_get(opts, "clock");
431 if (value) {
432 if (!strcmp(value, "host")) {
433 rtc_clock = host_clock;
434 } else if (!strcmp(value, "vm")) {
435 rtc_clock = vm_clock;
436 } else {
437 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
438 exit(1);
439 }
440 }
441 value = qemu_opt_get(opts, "driftfix");
442 if (value) {
443 if (!strcmp(value, "slew")) {
444 rtc_td_hack = 1;
445 } else if (!strcmp(value, "none")) {
446 rtc_td_hack = 0;
447 } else {
448 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
449 exit(1);
450 }
451 }
452 }
453
454 /***********************************************************/
455 /* Bluetooth support */
456 static int nb_hcis;
457 static int cur_hci;
458 static struct HCIInfo *hci_table[MAX_NICS];
459
460 static struct bt_vlan_s {
461 struct bt_scatternet_s net;
462 int id;
463 struct bt_vlan_s *next;
464 } *first_bt_vlan;
465
466 /* find or alloc a new bluetooth "VLAN" */
467 static struct bt_scatternet_s *qemu_find_bt_vlan(int id)
468 {
469 struct bt_vlan_s **pvlan, *vlan;
470 for (vlan = first_bt_vlan; vlan != NULL; vlan = vlan->next) {
471 if (vlan->id == id)
472 return &vlan->net;
473 }
474 vlan = qemu_mallocz(sizeof(struct bt_vlan_s));
475 vlan->id = id;
476 pvlan = &first_bt_vlan;
477 while (*pvlan != NULL)
478 pvlan = &(*pvlan)->next;
479 *pvlan = vlan;
480 return &vlan->net;
481 }
482
483 static void null_hci_send(struct HCIInfo *hci, const uint8_t *data, int len)
484 {
485 }
486
487 static int null_hci_addr_set(struct HCIInfo *hci, const uint8_t *bd_addr)
488 {
489 return -ENOTSUP;
490 }
491
492 static struct HCIInfo null_hci = {
493 .cmd_send = null_hci_send,
494 .sco_send = null_hci_send,
495 .acl_send = null_hci_send,
496 .bdaddr_set = null_hci_addr_set,
497 };
498
499 struct HCIInfo *qemu_next_hci(void)
500 {
501 if (cur_hci == nb_hcis)
502 return &null_hci;
503
504 return hci_table[cur_hci++];
505 }
506
507 static struct HCIInfo *hci_init(const char *str)
508 {
509 char *endp;
510 struct bt_scatternet_s *vlan = 0;
511
512 if (!strcmp(str, "null"))
513 /* null */
514 return &null_hci;
515 else if (!strncmp(str, "host", 4) && (str[4] == '\0' || str[4] == ':'))
516 /* host[:hciN] */
517 return bt_host_hci(str[4] ? str + 5 : "hci0");
518 else if (!strncmp(str, "hci", 3)) {
519 /* hci[,vlan=n] */
520 if (str[3]) {
521 if (!strncmp(str + 3, ",vlan=", 6)) {
522 vlan = qemu_find_bt_vlan(strtol(str + 9, &endp, 0));
523 if (*endp)
524 vlan = 0;
525 }
526 } else
527 vlan = qemu_find_bt_vlan(0);
528 if (vlan)
529 return bt_new_hci(vlan);
530 }
531
532 fprintf(stderr, "qemu: Unknown bluetooth HCI `%s'.\n", str);
533
534 return 0;
535 }
536
537 static int bt_hci_parse(const char *str)
538 {
539 struct HCIInfo *hci;
540 bdaddr_t bdaddr;
541
542 if (nb_hcis >= MAX_NICS) {
543 fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
544 return -1;
545 }
546
547 hci = hci_init(str);
548 if (!hci)
549 return -1;
550
551 bdaddr.b[0] = 0x52;
552 bdaddr.b[1] = 0x54;
553 bdaddr.b[2] = 0x00;
554 bdaddr.b[3] = 0x12;
555 bdaddr.b[4] = 0x34;
556 bdaddr.b[5] = 0x56 + nb_hcis;
557 hci->bdaddr_set(hci, bdaddr.b);
558
559 hci_table[nb_hcis++] = hci;
560
561 return 0;
562 }
563
564 static void bt_vhci_add(int vlan_id)
565 {
566 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
567
568 if (!vlan->slave)
569 fprintf(stderr, "qemu: warning: adding a VHCI to "
570 "an empty scatternet %i\n", vlan_id);
571
572 bt_vhci_init(bt_new_hci(vlan));
573 }
574
575 static struct bt_device_s *bt_device_add(const char *opt)
576 {
577 struct bt_scatternet_s *vlan;
578 int vlan_id = 0;
579 char *endp = strstr(opt, ",vlan=");
580 int len = (endp ? endp - opt : strlen(opt)) + 1;
581 char devname[10];
582
583 pstrcpy(devname, MIN(sizeof(devname), len), opt);
584
585 if (endp) {
586 vlan_id = strtol(endp + 6, &endp, 0);
587 if (*endp) {
588 fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
589 return 0;
590 }
591 }
592
593 vlan = qemu_find_bt_vlan(vlan_id);
594
595 if (!vlan->slave)
596 fprintf(stderr, "qemu: warning: adding a slave device to "
597 "an empty scatternet %i\n", vlan_id);
598
599 if (!strcmp(devname, "keyboard"))
600 return bt_keyboard_init(vlan);
601
602 fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
603 return 0;
604 }
605
606 static int bt_parse(const char *opt)
607 {
608 const char *endp, *p;
609 int vlan;
610
611 if (strstart(opt, "hci", &endp)) {
612 if (!*endp || *endp == ',') {
613 if (*endp)
614 if (!strstart(endp, ",vlan=", 0))
615 opt = endp + 1;
616
617 return bt_hci_parse(opt);
618 }
619 } else if (strstart(opt, "vhci", &endp)) {
620 if (!*endp || *endp == ',') {
621 if (*endp) {
622 if (strstart(endp, ",vlan=", &p)) {
623 vlan = strtol(p, (char **) &endp, 0);
624 if (*endp) {
625 fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
626 return 1;
627 }
628 } else {
629 fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1);
630 return 1;
631 }
632 } else
633 vlan = 0;
634
635 bt_vhci_add(vlan);
636 return 0;
637 }
638 } else if (strstart(opt, "device:", &endp))
639 return !bt_device_add(endp);
640
641 fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
642 return 1;
643 }
644
645 /***********************************************************/
646 /* QEMU Block devices */
647
648 #define HD_ALIAS "index=%d,media=disk"
649 #define CDROM_ALIAS "index=2,media=cdrom"
650 #define FD_ALIAS "index=%d,if=floppy"
651 #define PFLASH_ALIAS "if=pflash"
652 #define MTD_ALIAS "if=mtd"
653 #define SD_ALIAS "index=0,if=sd"
654
655 QemuOpts *drive_add(const char *file, const char *fmt, ...)
656 {
657 va_list ap;
658 char optstr[1024];
659 QemuOpts *opts;
660
661 va_start(ap, fmt);
662 vsnprintf(optstr, sizeof(optstr), fmt, ap);
663 va_end(ap);
664
665 opts = qemu_opts_parse(&qemu_drive_opts, optstr, 0);
666 if (!opts) {
667 return NULL;
668 }
669 if (file)
670 qemu_opt_set(opts, "file", file);
671 return opts;
672 }
673
674 DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit)
675 {
676 DriveInfo *dinfo;
677
678 /* seek interface, bus and unit */
679
680 QTAILQ_FOREACH(dinfo, &drives, next) {
681 if (dinfo->type == type &&
682 dinfo->bus == bus &&
683 dinfo->unit == unit)
684 return dinfo;
685 }
686
687 return NULL;
688 }
689
690 DriveInfo *drive_get_by_id(const char *id)
691 {
692 DriveInfo *dinfo;
693
694 QTAILQ_FOREACH(dinfo, &drives, next) {
695 if (strcmp(id, dinfo->id))
696 continue;
697 return dinfo;
698 }
699 return NULL;
700 }
701
702 int drive_get_max_bus(BlockInterfaceType type)
703 {
704 int max_bus;
705 DriveInfo *dinfo;
706
707 max_bus = -1;
708 QTAILQ_FOREACH(dinfo, &drives, next) {
709 if(dinfo->type == type &&
710 dinfo->bus > max_bus)
711 max_bus = dinfo->bus;
712 }
713 return max_bus;
714 }
715
716 const char *drive_get_serial(BlockDriverState *bdrv)
717 {
718 DriveInfo *dinfo;
719
720 QTAILQ_FOREACH(dinfo, &drives, next) {
721 if (dinfo->bdrv == bdrv)
722 return dinfo->serial;
723 }
724
725 return "\0";
726 }
727
728 BlockInterfaceErrorAction drive_get_on_error(
729 BlockDriverState *bdrv, int is_read)
730 {
731 DriveInfo *dinfo;
732
733 QTAILQ_FOREACH(dinfo, &drives, next) {
734 if (dinfo->bdrv == bdrv)
735 return is_read ? dinfo->on_read_error : dinfo->on_write_error;
736 }
737
738 return is_read ? BLOCK_ERR_REPORT : BLOCK_ERR_STOP_ENOSPC;
739 }
740
741 static void bdrv_format_print(void *opaque, const char *name)
742 {
743 fprintf(stderr, " %s", name);
744 }
745
746 void drive_uninit(DriveInfo *dinfo)
747 {
748 qemu_opts_del(dinfo->opts);
749 bdrv_delete(dinfo->bdrv);
750 QTAILQ_REMOVE(&drives, dinfo, next);
751 qemu_free(dinfo);
752 }
753
754 static int parse_block_error_action(const char *buf, int is_read)
755 {
756 if (!strcmp(buf, "ignore")) {
757 return BLOCK_ERR_IGNORE;
758 } else if (!is_read && !strcmp(buf, "enospc")) {
759 return BLOCK_ERR_STOP_ENOSPC;
760 } else if (!strcmp(buf, "stop")) {
761 return BLOCK_ERR_STOP_ANY;
762 } else if (!strcmp(buf, "report")) {
763 return BLOCK_ERR_REPORT;
764 } else {
765 fprintf(stderr, "qemu: '%s' invalid %s error action\n",
766 buf, is_read ? "read" : "write");
767 return -1;
768 }
769 }
770
771 DriveInfo *drive_init(QemuOpts *opts, void *opaque,
772 int *fatal_error)
773 {
774 const char *buf;
775 const char *file = NULL;
776 char devname[128];
777 const char *serial;
778 const char *mediastr = "";
779 BlockInterfaceType type;
780 enum { MEDIA_DISK, MEDIA_CDROM } media;
781 int bus_id, unit_id;
782 int cyls, heads, secs, translation;
783 BlockDriver *drv = NULL;
784 QEMUMachine *machine = opaque;
785 int max_devs;
786 int index;
787 int ro = 0;
788 int bdrv_flags = 0;
789 int on_read_error, on_write_error;
790 const char *devaddr;
791 DriveInfo *dinfo;
792 int snapshot = 0;
793
794 *fatal_error = 1;
795
796 translation = BIOS_ATA_TRANSLATION_AUTO;
797
798 if (machine && machine->use_scsi) {
799 type = IF_SCSI;
800 max_devs = MAX_SCSI_DEVS;
801 pstrcpy(devname, sizeof(devname), "scsi");
802 } else {
803 type = IF_IDE;
804 max_devs = MAX_IDE_DEVS;
805 pstrcpy(devname, sizeof(devname), "ide");
806 }
807 media = MEDIA_DISK;
808
809 /* extract parameters */
810 bus_id = qemu_opt_get_number(opts, "bus", 0);
811 unit_id = qemu_opt_get_number(opts, "unit", -1);
812 index = qemu_opt_get_number(opts, "index", -1);
813
814 cyls = qemu_opt_get_number(opts, "cyls", 0);
815 heads = qemu_opt_get_number(opts, "heads", 0);
816 secs = qemu_opt_get_number(opts, "secs", 0);
817
818 snapshot = qemu_opt_get_bool(opts, "snapshot", 0);
819 ro = qemu_opt_get_bool(opts, "readonly", 0);
820
821 file = qemu_opt_get(opts, "file");
822 serial = qemu_opt_get(opts, "serial");
823
824 if ((buf = qemu_opt_get(opts, "if")) != NULL) {
825 pstrcpy(devname, sizeof(devname), buf);
826 if (!strcmp(buf, "ide")) {
827 type = IF_IDE;
828 max_devs = MAX_IDE_DEVS;
829 } else if (!strcmp(buf, "scsi")) {
830 type = IF_SCSI;
831 max_devs = MAX_SCSI_DEVS;
832 } else if (!strcmp(buf, "floppy")) {
833 type = IF_FLOPPY;
834 max_devs = 0;
835 } else if (!strcmp(buf, "pflash")) {
836 type = IF_PFLASH;
837 max_devs = 0;
838 } else if (!strcmp(buf, "mtd")) {
839 type = IF_MTD;
840 max_devs = 0;
841 } else if (!strcmp(buf, "sd")) {
842 type = IF_SD;
843 max_devs = 0;
844 } else if (!strcmp(buf, "virtio")) {
845 type = IF_VIRTIO;
846 max_devs = 0;
847 } else if (!strcmp(buf, "xen")) {
848 type = IF_XEN;
849 max_devs = 0;
850 } else if (!strcmp(buf, "none")) {
851 type = IF_NONE;
852 max_devs = 0;
853 } else {
854 fprintf(stderr, "qemu: unsupported bus type '%s'\n", buf);
855 return NULL;
856 }
857 }
858
859 if (cyls || heads || secs) {
860 if (cyls < 1 || (type == IF_IDE && cyls > 16383)) {
861 fprintf(stderr, "qemu: '%s' invalid physical cyls number\n", buf);
862 return NULL;
863 }
864 if (heads < 1 || (type == IF_IDE && heads > 16)) {
865 fprintf(stderr, "qemu: '%s' invalid physical heads number\n", buf);
866 return NULL;
867 }
868 if (secs < 1 || (type == IF_IDE && secs > 63)) {
869 fprintf(stderr, "qemu: '%s' invalid physical secs number\n", buf);
870 return NULL;
871 }
872 }
873
874 if ((buf = qemu_opt_get(opts, "trans")) != NULL) {
875 if (!cyls) {
876 fprintf(stderr,
877 "qemu: '%s' trans must be used with cyls,heads and secs\n",
878 buf);
879 return NULL;
880 }
881 if (!strcmp(buf, "none"))
882 translation = BIOS_ATA_TRANSLATION_NONE;
883 else if (!strcmp(buf, "lba"))
884 translation = BIOS_ATA_TRANSLATION_LBA;
885 else if (!strcmp(buf, "auto"))
886 translation = BIOS_ATA_TRANSLATION_AUTO;
887 else {
888 fprintf(stderr, "qemu: '%s' invalid translation type\n", buf);
889 return NULL;
890 }
891 }
892
893 if ((buf = qemu_opt_get(opts, "media")) != NULL) {
894 if (!strcmp(buf, "disk")) {
895 media = MEDIA_DISK;
896 } else if (!strcmp(buf, "cdrom")) {
897 if (cyls || secs || heads) {
898 fprintf(stderr,
899 "qemu: '%s' invalid physical CHS format\n", buf);
900 return NULL;
901 }
902 media = MEDIA_CDROM;
903 } else {
904 fprintf(stderr, "qemu: '%s' invalid media\n", buf);
905 return NULL;
906 }
907 }
908
909 if ((buf = qemu_opt_get(opts, "cache")) != NULL) {
910 if (!strcmp(buf, "off") || !strcmp(buf, "none")) {
911 bdrv_flags |= BDRV_O_NOCACHE;
912 } else if (!strcmp(buf, "writeback")) {
913 bdrv_flags |= BDRV_O_CACHE_WB;
914 } else if (!strcmp(buf, "unsafe")) {
915 bdrv_flags |= BDRV_O_CACHE_WB;
916 bdrv_flags |= BDRV_O_NO_FLUSH;
917 } else if (!strcmp(buf, "writethrough")) {
918 /* this is the default */
919 } else {
920 fprintf(stderr, "qemu: invalid cache option\n");
921 return NULL;
922 }
923 }
924
925 #ifdef CONFIG_LINUX_AIO
926 if ((buf = qemu_opt_get(opts, "aio")) != NULL) {
927 if (!strcmp(buf, "native")) {
928 bdrv_flags |= BDRV_O_NATIVE_AIO;
929 } else if (!strcmp(buf, "threads")) {
930 /* this is the default */
931 } else {
932 fprintf(stderr, "qemu: invalid aio option\n");
933 return NULL;
934 }
935 }
936 #endif
937
938 if ((buf = qemu_opt_get(opts, "format")) != NULL) {
939 if (strcmp(buf, "?") == 0) {
940 fprintf(stderr, "qemu: Supported formats:");
941 bdrv_iterate_format(bdrv_format_print, NULL);
942 fprintf(stderr, "\n");
943 return NULL;
944 }
945 drv = bdrv_find_whitelisted_format(buf);
946 if (!drv) {
947 fprintf(stderr, "qemu: '%s' invalid format\n", buf);
948 return NULL;
949 }
950 }
951
952 on_write_error = BLOCK_ERR_STOP_ENOSPC;
953 if ((buf = qemu_opt_get(opts, "werror")) != NULL) {
954 if (type != IF_IDE && type != IF_SCSI && type != IF_VIRTIO && type != IF_NONE) {
955 fprintf(stderr, "werror is no supported by this format\n");
956 return NULL;
957 }
958
959 on_write_error = parse_block_error_action(buf, 0);
960 if (on_write_error < 0) {
961 return NULL;
962 }
963 }
964
965 on_read_error = BLOCK_ERR_REPORT;
966 if ((buf = qemu_opt_get(opts, "rerror")) != NULL) {
967 if (type != IF_IDE && type != IF_VIRTIO && type != IF_NONE) {
968 fprintf(stderr, "rerror is no supported by this format\n");
969 return NULL;
970 }
971
972 on_read_error = parse_block_error_action(buf, 1);
973 if (on_read_error < 0) {
974 return NULL;
975 }
976 }
977
978 if ((devaddr = qemu_opt_get(opts, "addr")) != NULL) {
979 if (type != IF_VIRTIO) {
980 fprintf(stderr, "addr is not supported\n");
981 return NULL;
982 }
983 }
984
985 /* compute bus and unit according index */
986
987 if (index != -1) {
988 if (bus_id != 0 || unit_id != -1) {
989 fprintf(stderr,
990 "qemu: index cannot be used with bus and unit\n");
991 return NULL;
992 }
993 if (max_devs == 0)
994 {
995 unit_id = index;
996 bus_id = 0;
997 } else {
998 unit_id = index % max_devs;
999 bus_id = index / max_devs;
1000 }
1001 }
1002
1003 /* if user doesn't specify a unit_id,
1004 * try to find the first free
1005 */
1006
1007 if (unit_id == -1) {
1008 unit_id = 0;
1009 while (drive_get(type, bus_id, unit_id) != NULL) {
1010 unit_id++;
1011 if (max_devs && unit_id >= max_devs) {
1012 unit_id -= max_devs;
1013 bus_id++;
1014 }
1015 }
1016 }
1017
1018 /* check unit id */
1019
1020 if (max_devs && unit_id >= max_devs) {
1021 fprintf(stderr, "qemu: unit %d too big (max is %d)\n",
1022 unit_id, max_devs - 1);
1023 return NULL;
1024 }
1025
1026 /*
1027 * ignore multiple definitions
1028 */
1029
1030 if (drive_get(type, bus_id, unit_id) != NULL) {
1031 *fatal_error = 0;
1032 return NULL;
1033 }
1034
1035 /* init */
1036
1037 dinfo = qemu_mallocz(sizeof(*dinfo));
1038 if ((buf = qemu_opts_id(opts)) != NULL) {
1039 dinfo->id = qemu_strdup(buf);
1040 } else {
1041 /* no id supplied -> create one */
1042 dinfo->id = qemu_mallocz(32);
1043 if (type == IF_IDE || type == IF_SCSI)
1044 mediastr = (media == MEDIA_CDROM) ? "-cd" : "-hd";
1045 if (max_devs)
1046 snprintf(dinfo->id, 32, "%s%i%s%i",
1047 devname, bus_id, mediastr, unit_id);
1048 else
1049 snprintf(dinfo->id, 32, "%s%s%i",
1050 devname, mediastr, unit_id);
1051 }
1052 dinfo->bdrv = bdrv_new(dinfo->id);
1053 dinfo->devaddr = devaddr;
1054 dinfo->type = type;
1055 dinfo->bus = bus_id;
1056 dinfo->unit = unit_id;
1057 dinfo->on_read_error = on_read_error;
1058 dinfo->on_write_error = on_write_error;
1059 dinfo->opts = opts;
1060 if (serial)
1061 strncpy(dinfo->serial, serial, sizeof(serial));
1062 QTAILQ_INSERT_TAIL(&drives, dinfo, next);
1063
1064 switch(type) {
1065 case IF_IDE:
1066 case IF_SCSI:
1067 case IF_XEN:
1068 case IF_NONE:
1069 switch(media) {
1070 case MEDIA_DISK:
1071 if (cyls != 0) {
1072 bdrv_set_geometry_hint(dinfo->bdrv, cyls, heads, secs);
1073 bdrv_set_translation_hint(dinfo->bdrv, translation);
1074 }
1075 break;
1076 case MEDIA_CDROM:
1077 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_CDROM);
1078 break;
1079 }
1080 break;
1081 case IF_SD:
1082 /* FIXME: This isn't really a floppy, but it's a reasonable
1083 approximation. */
1084 case IF_FLOPPY:
1085 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_FLOPPY);
1086 break;
1087 case IF_PFLASH:
1088 case IF_MTD:
1089 break;
1090 case IF_VIRTIO:
1091 /* add virtio block device */
1092 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
1093 qemu_opt_set(opts, "driver", "virtio-blk-pci");
1094 qemu_opt_set(opts, "drive", dinfo->id);
1095 if (devaddr)
1096 qemu_opt_set(opts, "addr", devaddr);
1097 break;
1098 case IF_COUNT:
1099 abort();
1100 }
1101 if (!file) {
1102 *fatal_error = 0;
1103 return NULL;
1104 }
1105 if (snapshot) {
1106 /* always use cache=unsafe with snapshot */
1107 bdrv_flags &= ~BDRV_O_CACHE_MASK;
1108 bdrv_flags |= (BDRV_O_SNAPSHOT|BDRV_O_CACHE_WB|BDRV_O_NO_FLUSH);
1109 }
1110
1111 if (media == MEDIA_CDROM) {
1112 /* CDROM is fine for any interface, don't check. */
1113 ro = 1;
1114 } else if (ro == 1) {
1115 if (type != IF_SCSI && type != IF_VIRTIO && type != IF_FLOPPY && type != IF_NONE) {
1116 fprintf(stderr, "qemu: readonly flag not supported for drive with this interface\n");
1117 return NULL;
1118 }
1119 }
1120
1121 bdrv_flags |= ro ? 0 : BDRV_O_RDWR;
1122
1123 if (bdrv_open(dinfo->bdrv, file, bdrv_flags, drv) < 0) {
1124 fprintf(stderr, "qemu: could not open disk image %s: %s\n",
1125 file, strerror(errno));
1126 return NULL;
1127 }
1128
1129 if (bdrv_key_required(dinfo->bdrv))
1130 autostart = 0;
1131 *fatal_error = 0;
1132 return dinfo;
1133 }
1134
1135 static int drive_init_func(QemuOpts *opts, void *opaque)
1136 {
1137 QEMUMachine *machine = opaque;
1138 int fatal_error = 0;
1139
1140 if (drive_init(opts, machine, &fatal_error) == NULL) {
1141 if (fatal_error)
1142 return 1;
1143 }
1144 return 0;
1145 }
1146
1147 static int drive_enable_snapshot(QemuOpts *opts, void *opaque)
1148 {
1149 if (NULL == qemu_opt_get(opts, "snapshot")) {
1150 qemu_opt_set(opts, "snapshot", "on");
1151 }
1152 return 0;
1153 }
1154
1155 void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
1156 {
1157 boot_set_handler = func;
1158 boot_set_opaque = opaque;
1159 }
1160
1161 int qemu_boot_set(const char *boot_devices)
1162 {
1163 if (!boot_set_handler) {
1164 return -EINVAL;
1165 }
1166 return boot_set_handler(boot_set_opaque, boot_devices);
1167 }
1168
1169 static void validate_bootdevices(char *devices)
1170 {
1171 /* We just do some generic consistency checks */
1172 const char *p;
1173 int bitmap = 0;
1174
1175 for (p = devices; *p != '\0'; p++) {
1176 /* Allowed boot devices are:
1177 * a-b: floppy disk drives
1178 * c-f: IDE disk drives
1179 * g-m: machine implementation dependant drives
1180 * n-p: network devices
1181 * It's up to each machine implementation to check if the given boot
1182 * devices match the actual hardware implementation and firmware
1183 * features.
1184 */
1185 if (*p < 'a' || *p > 'p') {
1186 fprintf(stderr, "Invalid boot device '%c'\n", *p);
1187 exit(1);
1188 }
1189 if (bitmap & (1 << (*p - 'a'))) {
1190 fprintf(stderr, "Boot device '%c' was given twice\n", *p);
1191 exit(1);
1192 }
1193 bitmap |= 1 << (*p - 'a');
1194 }
1195 }
1196
1197 static void restore_boot_devices(void *opaque)
1198 {
1199 char *standard_boot_devices = opaque;
1200 static int first = 1;
1201
1202 /* Restore boot order and remove ourselves after the first boot */
1203 if (first) {
1204 first = 0;
1205 return;
1206 }
1207
1208 qemu_boot_set(standard_boot_devices);
1209
1210 qemu_unregister_reset(restore_boot_devices, standard_boot_devices);
1211 qemu_free(standard_boot_devices);
1212 }
1213
1214 static void numa_add(const char *optarg)
1215 {
1216 char option[128];
1217 char *endptr;
1218 unsigned long long value, endvalue;
1219 int nodenr;
1220
1221 optarg = get_opt_name(option, 128, optarg, ',') + 1;
1222 if (!strcmp(option, "node")) {
1223 if (get_param_value(option, 128, "nodeid", optarg) == 0) {
1224 nodenr = nb_numa_nodes;
1225 } else {
1226 nodenr = strtoull(option, NULL, 10);
1227 }
1228
1229 if (get_param_value(option, 128, "mem", optarg) == 0) {
1230 node_mem[nodenr] = 0;
1231 } else {
1232 value = strtoull(option, &endptr, 0);
1233 switch (*endptr) {
1234 case 0: case 'M': case 'm':
1235 value <<= 20;
1236 break;
1237 case 'G': case 'g':
1238 value <<= 30;
1239 break;
1240 }
1241 node_mem[nodenr] = value;
1242 }
1243 if (get_param_value(option, 128, "cpus", optarg) == 0) {
1244 node_cpumask[nodenr] = 0;
1245 } else {
1246 value = strtoull(option, &endptr, 10);
1247 if (value >= 64) {
1248 value = 63;
1249 fprintf(stderr, "only 64 CPUs in NUMA mode supported.\n");
1250 } else {
1251 if (*endptr == '-') {
1252 endvalue = strtoull(endptr+1, &endptr, 10);
1253 if (endvalue >= 63) {
1254 endvalue = 62;
1255 fprintf(stderr,
1256 "only 63 CPUs in NUMA mode supported.\n");
1257 }
1258 value = (2ULL << endvalue) - (1ULL << value);
1259 } else {
1260 value = 1ULL << value;
1261 }
1262 }
1263 node_cpumask[nodenr] = value;
1264 }
1265 nb_numa_nodes++;
1266 }
1267 return;
1268 }
1269
1270 static void smp_parse(const char *optarg)
1271 {
1272 int smp, sockets = 0, threads = 0, cores = 0;
1273 char *endptr;
1274 char option[128];
1275
1276 smp = strtoul(optarg, &endptr, 10);
1277 if (endptr != optarg) {
1278 if (*endptr == ',') {
1279 endptr++;
1280 }
1281 }
1282 if (get_param_value(option, 128, "sockets", endptr) != 0)
1283 sockets = strtoull(option, NULL, 10);
1284 if (get_param_value(option, 128, "cores", endptr) != 0)
1285 cores = strtoull(option, NULL, 10);
1286 if (get_param_value(option, 128, "threads", endptr) != 0)
1287 threads = strtoull(option, NULL, 10);
1288 if (get_param_value(option, 128, "maxcpus", endptr) != 0)
1289 max_cpus = strtoull(option, NULL, 10);
1290
1291 /* compute missing values, prefer sockets over cores over threads */
1292 if (smp == 0 || sockets == 0) {
1293 sockets = sockets > 0 ? sockets : 1;
1294 cores = cores > 0 ? cores : 1;
1295 threads = threads > 0 ? threads : 1;
1296 if (smp == 0) {
1297 smp = cores * threads * sockets;
1298 }
1299 } else {
1300 if (cores == 0) {
1301 threads = threads > 0 ? threads : 1;
1302 cores = smp / (sockets * threads);
1303 } else {
1304 if (sockets) {
1305 threads = smp / (cores * sockets);
1306 }
1307 }
1308 }
1309 smp_cpus = smp;
1310 smp_cores = cores > 0 ? cores : 1;
1311 smp_threads = threads > 0 ? threads : 1;
1312 if (max_cpus == 0)
1313 max_cpus = smp_cpus;
1314 }
1315
1316 /***********************************************************/
1317 /* USB devices */
1318
1319 static int usb_device_add(const char *devname, int is_hotplug)
1320 {
1321 const char *p;
1322 USBDevice *dev = NULL;
1323
1324 if (!usb_enabled)
1325 return -1;
1326
1327 /* drivers with .usbdevice_name entry in USBDeviceInfo */
1328 dev = usbdevice_create(devname);
1329 if (dev)
1330 goto done;
1331
1332 /* the other ones */
1333 if (strstart(devname, "host:", &p)) {
1334 dev = usb_host_device_open(p);
1335 } else if (!strcmp(devname, "bt") || strstart(devname, "bt:", &p)) {
1336 dev = usb_bt_init(devname[2] ? hci_init(p) :
1337 bt_new_hci(qemu_find_bt_vlan(0)));
1338 } else {
1339 return -1;
1340 }
1341 if (!dev)
1342 return -1;
1343
1344 done:
1345 return 0;
1346 }
1347
1348 static int usb_device_del(const char *devname)
1349 {
1350 int bus_num, addr;
1351 const char *p;
1352
1353 if (strstart(devname, "host:", &p))
1354 return usb_host_device_close(p);
1355
1356 if (!usb_enabled)
1357 return -1;
1358
1359 p = strchr(devname, '.');
1360 if (!p)
1361 return -1;
1362 bus_num = strtoul(devname, NULL, 0);
1363 addr = strtoul(p + 1, NULL, 0);
1364
1365 return usb_device_delete_addr(bus_num, addr);
1366 }
1367
1368 static int usb_parse(const char *cmdline)
1369 {
1370 int r;
1371 r = usb_device_add(cmdline, 0);
1372 if (r < 0) {
1373 fprintf(stderr, "qemu: could not add USB device '%s'\n", cmdline);
1374 }
1375 return r;
1376 }
1377
1378 void do_usb_add(Monitor *mon, const QDict *qdict)
1379 {
1380 const char *devname = qdict_get_str(qdict, "devname");
1381 if (usb_device_add(devname, 1) < 0) {
1382 error_report("could not add USB device '%s'", devname);
1383 }
1384 }
1385
1386 void do_usb_del(Monitor *mon, const QDict *qdict)
1387 {
1388 const char *devname = qdict_get_str(qdict, "devname");
1389 if (usb_device_del(devname) < 0) {
1390 error_report("could not delete USB device '%s'", devname);
1391 }
1392 }
1393
1394 /***********************************************************/
1395 /* PCMCIA/Cardbus */
1396
1397 static struct pcmcia_socket_entry_s {
1398 PCMCIASocket *socket;
1399 struct pcmcia_socket_entry_s *next;
1400 } *pcmcia_sockets = 0;
1401
1402 void pcmcia_socket_register(PCMCIASocket *socket)
1403 {
1404 struct pcmcia_socket_entry_s *entry;
1405
1406 entry = qemu_malloc(sizeof(struct pcmcia_socket_entry_s));
1407 entry->socket = socket;
1408 entry->next = pcmcia_sockets;
1409 pcmcia_sockets = entry;
1410 }
1411
1412 void pcmcia_socket_unregister(PCMCIASocket *socket)
1413 {
1414 struct pcmcia_socket_entry_s *entry, **ptr;
1415
1416 ptr = &pcmcia_sockets;
1417 for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
1418 if (entry->socket == socket) {
1419 *ptr = entry->next;
1420 qemu_free(entry);
1421 }
1422 }
1423
1424 void pcmcia_info(Monitor *mon)
1425 {
1426 struct pcmcia_socket_entry_s *iter;
1427
1428 if (!pcmcia_sockets)
1429 monitor_printf(mon, "No PCMCIA sockets\n");
1430
1431 for (iter = pcmcia_sockets; iter; iter = iter->next)
1432 monitor_printf(mon, "%s: %s\n", iter->socket->slot_string,
1433 iter->socket->attached ? iter->socket->card_string :
1434 "Empty");
1435 }
1436
1437 /***********************************************************/
1438 /* I/O handling */
1439
1440 typedef struct IOHandlerRecord {
1441 int fd;
1442 IOCanReadHandler *fd_read_poll;
1443 IOHandler *fd_read;
1444 IOHandler *fd_write;
1445 int deleted;
1446 void *opaque;
1447 /* temporary data */
1448 struct pollfd *ufd;
1449 QLIST_ENTRY(IOHandlerRecord) next;
1450 } IOHandlerRecord;
1451
1452 static QLIST_HEAD(, IOHandlerRecord) io_handlers =
1453 QLIST_HEAD_INITIALIZER(io_handlers);
1454
1455
1456 /* XXX: fd_read_poll should be suppressed, but an API change is
1457 necessary in the character devices to suppress fd_can_read(). */
1458 int qemu_set_fd_handler2(int fd,
1459 IOCanReadHandler *fd_read_poll,
1460 IOHandler *fd_read,
1461 IOHandler *fd_write,
1462 void *opaque)
1463 {
1464 IOHandlerRecord *ioh;
1465
1466 if (!fd_read && !fd_write) {
1467 QLIST_FOREACH(ioh, &io_handlers, next) {
1468 if (ioh->fd == fd) {
1469 ioh->deleted = 1;
1470 break;
1471 }
1472 }
1473 } else {
1474 QLIST_FOREACH(ioh, &io_handlers, next) {
1475 if (ioh->fd == fd)
1476 goto found;
1477 }
1478 ioh = qemu_mallocz(sizeof(IOHandlerRecord));
1479 QLIST_INSERT_HEAD(&io_handlers, ioh, next);
1480 found:
1481 ioh->fd = fd;
1482 ioh->fd_read_poll = fd_read_poll;
1483 ioh->fd_read = fd_read;
1484 ioh->fd_write = fd_write;
1485 ioh->opaque = opaque;
1486 ioh->deleted = 0;
1487 }
1488 return 0;
1489 }
1490
1491 int qemu_set_fd_handler(int fd,
1492 IOHandler *fd_read,
1493 IOHandler *fd_write,
1494 void *opaque)
1495 {
1496 return qemu_set_fd_handler2(fd, NULL, fd_read, fd_write, opaque);
1497 }
1498
1499 #ifdef _WIN32
1500 /***********************************************************/
1501 /* Polling handling */
1502
1503 typedef struct PollingEntry {
1504 PollingFunc *func;
1505 void *opaque;
1506 struct PollingEntry *next;
1507 } PollingEntry;
1508
1509 static PollingEntry *first_polling_entry;
1510
1511 int qemu_add_polling_cb(PollingFunc *func, void *opaque)
1512 {
1513 PollingEntry **ppe, *pe;
1514 pe = qemu_mallocz(sizeof(PollingEntry));
1515 pe->func = func;
1516 pe->opaque = opaque;
1517 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next);
1518 *ppe = pe;
1519 return 0;
1520 }
1521
1522 void qemu_del_polling_cb(PollingFunc *func, void *opaque)
1523 {
1524 PollingEntry **ppe, *pe;
1525 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next) {
1526 pe = *ppe;
1527 if (pe->func == func && pe->opaque == opaque) {
1528 *ppe = pe->next;
1529 qemu_free(pe);
1530 break;
1531 }
1532 }
1533 }
1534
1535 /***********************************************************/
1536 /* Wait objects support */
1537 typedef struct WaitObjects {
1538 int num;
1539 HANDLE events[MAXIMUM_WAIT_OBJECTS + 1];
1540 WaitObjectFunc *func[MAXIMUM_WAIT_OBJECTS + 1];
1541 void *opaque[MAXIMUM_WAIT_OBJECTS + 1];
1542 } WaitObjects;
1543
1544 static WaitObjects wait_objects = {0};
1545
1546 int qemu_add_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
1547 {
1548 WaitObjects *w = &wait_objects;
1549
1550 if (w->num >= MAXIMUM_WAIT_OBJECTS)
1551 return -1;
1552 w->events[w->num] = handle;
1553 w->func[w->num] = func;
1554 w->opaque[w->num] = opaque;
1555 w->num++;
1556 return 0;
1557 }
1558
1559 void qemu_del_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
1560 {
1561 int i, found;
1562 WaitObjects *w = &wait_objects;
1563
1564 found = 0;
1565 for (i = 0; i < w->num; i++) {
1566 if (w->events[i] == handle)
1567 found = 1;
1568 if (found) {
1569 w->events[i] = w->events[i + 1];
1570 w->func[i] = w->func[i + 1];
1571 w->opaque[i] = w->opaque[i + 1];
1572 }
1573 }
1574 if (found)
1575 w->num--;
1576 }
1577 #endif
1578
1579 /***********************************************************/
1580 /* machine registration */
1581
1582 static QEMUMachine *first_machine = NULL;
1583 QEMUMachine *current_machine = NULL;
1584
1585 int qemu_register_machine(QEMUMachine *m)
1586 {
1587 QEMUMachine **pm;
1588 pm = &first_machine;
1589 while (*pm != NULL)
1590 pm = &(*pm)->next;
1591 m->next = NULL;
1592 *pm = m;
1593 return 0;
1594 }
1595
1596 static QEMUMachine *find_machine(const char *name)
1597 {
1598 QEMUMachine *m;
1599
1600 for(m = first_machine; m != NULL; m = m->next) {
1601 if (!strcmp(m->name, name))
1602 return m;
1603 if (m->alias && !strcmp(m->alias, name))
1604 return m;
1605 }
1606 return NULL;
1607 }
1608
1609 static QEMUMachine *find_default_machine(void)
1610 {
1611 QEMUMachine *m;
1612
1613 for(m = first_machine; m != NULL; m = m->next) {
1614 if (m->is_default) {
1615 return m;
1616 }
1617 }
1618 return NULL;
1619 }
1620
1621 /***********************************************************/
1622 /* main execution loop */
1623
1624 static void gui_update(void *opaque)
1625 {
1626 uint64_t interval = GUI_REFRESH_INTERVAL;
1627 DisplayState *ds = opaque;
1628 DisplayChangeListener *dcl = ds->listeners;
1629
1630 qemu_flush_coalesced_mmio_buffer();
1631 dpy_refresh(ds);
1632
1633 while (dcl != NULL) {
1634 if (dcl->gui_timer_interval &&
1635 dcl->gui_timer_interval < interval)
1636 interval = dcl->gui_timer_interval;
1637 dcl = dcl->next;
1638 }
1639 qemu_mod_timer(ds->gui_timer, interval + qemu_get_clock(rt_clock));
1640 }
1641
1642 static void nographic_update(void *opaque)
1643 {
1644 uint64_t interval = GUI_REFRESH_INTERVAL;
1645
1646 qemu_flush_coalesced_mmio_buffer();
1647 qemu_mod_timer(nographic_timer, interval + qemu_get_clock(rt_clock));
1648 }
1649
1650 struct vm_change_state_entry {
1651 VMChangeStateHandler *cb;
1652 void *opaque;
1653 QLIST_ENTRY (vm_change_state_entry) entries;
1654 };
1655
1656 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1657
1658 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1659 void *opaque)
1660 {
1661 VMChangeStateEntry *e;
1662
1663 e = qemu_mallocz(sizeof (*e));
1664
1665 e->cb = cb;
1666 e->opaque = opaque;
1667 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1668 return e;
1669 }
1670
1671 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1672 {
1673 QLIST_REMOVE (e, entries);
1674 qemu_free (e);
1675 }
1676
1677 void vm_state_notify(int running, int reason)
1678 {
1679 VMChangeStateEntry *e;
1680
1681 for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
1682 e->cb(e->opaque, running, reason);
1683 }
1684 }
1685
1686 void vm_start(void)
1687 {
1688 if (!vm_running) {
1689 cpu_enable_ticks();
1690 vm_running = 1;
1691 vm_state_notify(1, 0);
1692 resume_all_vcpus();
1693 monitor_protocol_event(QEVENT_RESUME, NULL);
1694 }
1695 }
1696
1697 /* reset/shutdown handler */
1698
1699 typedef struct QEMUResetEntry {
1700 QTAILQ_ENTRY(QEMUResetEntry) entry;
1701 QEMUResetHandler *func;
1702 void *opaque;
1703 } QEMUResetEntry;
1704
1705 static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
1706 QTAILQ_HEAD_INITIALIZER(reset_handlers);
1707 static int reset_requested;
1708 static int shutdown_requested;
1709 static int powerdown_requested;
1710 int debug_requested;
1711 int vmstop_requested;
1712
1713 int qemu_shutdown_requested(void)
1714 {
1715 int r = shutdown_requested;
1716 shutdown_requested = 0;
1717 return r;
1718 }
1719
1720 int qemu_reset_requested(void)
1721 {
1722 int r = reset_requested;
1723 reset_requested = 0;
1724 return r;
1725 }
1726
1727 int qemu_powerdown_requested(void)
1728 {
1729 int r = powerdown_requested;
1730 powerdown_requested = 0;
1731 return r;
1732 }
1733
1734 static int qemu_debug_requested(void)
1735 {
1736 int r = debug_requested;
1737 debug_requested = 0;
1738 return r;
1739 }
1740
1741 static int qemu_vmstop_requested(void)
1742 {
1743 int r = vmstop_requested;
1744 vmstop_requested = 0;
1745 return r;
1746 }
1747
1748 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
1749 {
1750 QEMUResetEntry *re = qemu_mallocz(sizeof(QEMUResetEntry));
1751
1752 re->func = func;
1753 re->opaque = opaque;
1754 QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
1755 }
1756
1757 void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
1758 {
1759 QEMUResetEntry *re;
1760
1761 QTAILQ_FOREACH(re, &reset_handlers, entry) {
1762 if (re->func == func && re->opaque == opaque) {
1763 QTAILQ_REMOVE(&reset_handlers, re, entry);
1764 qemu_free(re);
1765 return;
1766 }
1767 }
1768 }
1769
1770 void qemu_system_reset(void)
1771 {
1772 QEMUResetEntry *re, *nre;
1773
1774 /* reset all devices */
1775 QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
1776 re->func(re->opaque);
1777 }
1778 monitor_protocol_event(QEVENT_RESET, NULL);
1779 cpu_synchronize_all_post_reset();
1780 }
1781
1782 void qemu_system_reset_request(void)
1783 {
1784 if (no_reboot) {
1785 shutdown_requested = 1;
1786 } else {
1787 reset_requested = 1;
1788 }
1789 qemu_notify_event();
1790 }
1791
1792 void qemu_system_shutdown_request(void)
1793 {
1794 shutdown_requested = 1;
1795 qemu_notify_event();
1796 }
1797
1798 void qemu_system_powerdown_request(void)
1799 {
1800 powerdown_requested = 1;
1801 qemu_notify_event();
1802 }
1803
1804 #ifdef _WIN32
1805 static void host_main_loop_wait(int *timeout)
1806 {
1807 int ret, ret2, i;
1808 PollingEntry *pe;
1809
1810
1811 /* XXX: need to suppress polling by better using win32 events */
1812 ret = 0;
1813 for(pe = first_polling_entry; pe != NULL; pe = pe->next) {
1814 ret |= pe->func(pe->opaque);
1815 }
1816 if (ret == 0) {
1817 int err;
1818 WaitObjects *w = &wait_objects;
1819
1820 ret = WaitForMultipleObjects(w->num, w->events, FALSE, *timeout);
1821 if (WAIT_OBJECT_0 + 0 <= ret && ret <= WAIT_OBJECT_0 + w->num - 1) {
1822 if (w->func[ret - WAIT_OBJECT_0])
1823 w->func[ret - WAIT_OBJECT_0](w->opaque[ret - WAIT_OBJECT_0]);
1824
1825 /* Check for additional signaled events */
1826 for(i = (ret - WAIT_OBJECT_0 + 1); i < w->num; i++) {
1827
1828 /* Check if event is signaled */
1829 ret2 = WaitForSingleObject(w->events[i], 0);
1830 if(ret2 == WAIT_OBJECT_0) {
1831 if (w->func[i])
1832 w->func[i](w->opaque[i]);
1833 } else if (ret2 == WAIT_TIMEOUT) {
1834 } else {
1835 err = GetLastError();
1836 fprintf(stderr, "WaitForSingleObject error %d %d\n", i, err);
1837 }
1838 }
1839 } else if (ret == WAIT_TIMEOUT) {
1840 } else {
1841 err = GetLastError();
1842 fprintf(stderr, "WaitForMultipleObjects error %d %d\n", ret, err);
1843 }
1844 }
1845
1846 *timeout = 0;
1847 }
1848 #else
1849 static void host_main_loop_wait(int *timeout)
1850 {
1851 }
1852 #endif
1853
1854 void main_loop_wait(int nonblocking)
1855 {
1856 IOHandlerRecord *ioh;
1857 fd_set rfds, wfds, xfds;
1858 int ret, nfds;
1859 struct timeval tv;
1860 int timeout;
1861
1862 if (nonblocking)
1863 timeout = 0;
1864 else {
1865 timeout = qemu_calculate_timeout();
1866 qemu_bh_update_timeout(&timeout);
1867 }
1868
1869 host_main_loop_wait(&timeout);
1870
1871 /* poll any events */
1872 /* XXX: separate device handlers from system ones */
1873 nfds = -1;
1874 FD_ZERO(&rfds);
1875 FD_ZERO(&wfds);
1876 FD_ZERO(&xfds);
1877 QLIST_FOREACH(ioh, &io_handlers, next) {
1878 if (ioh->deleted)
1879 continue;
1880 if (ioh->fd_read &&
1881 (!ioh->fd_read_poll ||
1882 ioh->fd_read_poll(ioh->opaque) != 0)) {
1883 FD_SET(ioh->fd, &rfds);
1884 if (ioh->fd > nfds)
1885 nfds = ioh->fd;
1886 }
1887 if (ioh->fd_write) {
1888 FD_SET(ioh->fd, &wfds);
1889 if (ioh->fd > nfds)
1890 nfds = ioh->fd;
1891 }
1892 }
1893
1894 tv.tv_sec = timeout / 1000;
1895 tv.tv_usec = (timeout % 1000) * 1000;
1896
1897 slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
1898
1899 qemu_mutex_unlock_iothread();
1900 ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
1901 qemu_mutex_lock_iothread();
1902 if (ret > 0) {
1903 IOHandlerRecord *pioh;
1904
1905 QLIST_FOREACH_SAFE(ioh, &io_handlers, next, pioh) {
1906 if (ioh->deleted) {
1907 QLIST_REMOVE(ioh, next);
1908 qemu_free(ioh);
1909 continue;
1910 }
1911 if (ioh->fd_read && FD_ISSET(ioh->fd, &rfds)) {
1912 ioh->fd_read(ioh->opaque);
1913 }
1914 if (ioh->fd_write && FD_ISSET(ioh->fd, &wfds)) {
1915 ioh->fd_write(ioh->opaque);
1916 }
1917 }
1918 }
1919
1920 slirp_select_poll(&rfds, &wfds, &xfds, (ret < 0));
1921
1922 qemu_run_all_timers();
1923
1924 /* Check bottom-halves last in case any of the earlier events triggered
1925 them. */
1926 qemu_bh_poll();
1927
1928 }
1929
1930 static int vm_can_run(void)
1931 {
1932 if (powerdown_requested)
1933 return 0;
1934 if (reset_requested)
1935 return 0;
1936 if (shutdown_requested)
1937 return 0;
1938 if (debug_requested)
1939 return 0;
1940 return 1;
1941 }
1942
1943 qemu_irq qemu_system_powerdown;
1944
1945 static void main_loop(void)
1946 {
1947 int r;
1948
1949 qemu_main_loop_start();
1950
1951 for (;;) {
1952 do {
1953 bool nonblocking = false;
1954 #ifdef CONFIG_PROFILER
1955 int64_t ti;
1956 #endif
1957 #ifndef CONFIG_IOTHREAD
1958 nonblocking = tcg_cpu_exec();
1959 #endif
1960 #ifdef CONFIG_PROFILER
1961 ti = profile_getclock();
1962 #endif
1963 main_loop_wait(nonblocking);
1964 #ifdef CONFIG_PROFILER
1965 dev_time += profile_getclock() - ti;
1966 #endif
1967 } while (vm_can_run());
1968
1969 if ((r = qemu_debug_requested())) {
1970 vm_stop(r);
1971 }
1972 if (qemu_shutdown_requested()) {
1973 monitor_protocol_event(QEVENT_SHUTDOWN, NULL);
1974 if (no_shutdown) {
1975 vm_stop(0);
1976 no_shutdown = 0;
1977 } else
1978 break;
1979 }
1980 if (qemu_reset_requested()) {
1981 pause_all_vcpus();
1982 qemu_system_reset();
1983 resume_all_vcpus();
1984 }
1985 if (qemu_powerdown_requested()) {
1986 monitor_protocol_event(QEVENT_POWERDOWN, NULL);
1987 qemu_irq_raise(qemu_system_powerdown);
1988 }
1989 if ((r = qemu_vmstop_requested())) {
1990 vm_stop(r);
1991 }
1992 }
1993 pause_all_vcpus();
1994 }
1995
1996 static void version(void)
1997 {
1998 printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
1999 }
2000
2001 static void help(int exitcode)
2002 {
2003 const char *options_help =
2004 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
2005 opt_help
2006 #define DEFHEADING(text) stringify(text) "\n"
2007 #include "qemu-options.h"
2008 #undef DEF
2009 #undef DEFHEADING
2010 #undef GEN_DOCS
2011 ;
2012 version();
2013 printf("usage: %s [options] [disk_image]\n"
2014 "\n"
2015 "'disk_image' is a raw hard disk image for IDE hard disk 0\n"
2016 "\n"
2017 "%s\n"
2018 "During emulation, the following keys are useful:\n"
2019 "ctrl-alt-f toggle full screen\n"
2020 "ctrl-alt-n switch to virtual console 'n'\n"
2021 "ctrl-alt toggle mouse and keyboard grab\n"
2022 "\n"
2023 "When using -nographic, press 'ctrl-a h' to get some help.\n",
2024 "qemu",
2025 options_help);
2026 exit(exitcode);
2027 }
2028
2029 #define HAS_ARG 0x0001
2030
2031 enum {
2032 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
2033 opt_enum,
2034 #define DEFHEADING(text)
2035 #include "qemu-options.h"
2036 #undef DEF
2037 #undef DEFHEADING
2038 #undef GEN_DOCS
2039 };
2040
2041 typedef struct QEMUOption {
2042 const char *name;
2043 int flags;
2044 int index;
2045 uint32_t arch_mask;
2046 } QEMUOption;
2047
2048 static const QEMUOption qemu_options[] = {
2049 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
2050 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
2051 { option, opt_arg, opt_enum, arch_mask },
2052 #define DEFHEADING(text)
2053 #include "qemu-options.h"
2054 #undef DEF
2055 #undef DEFHEADING
2056 #undef GEN_DOCS
2057 { NULL },
2058 };
2059 static void select_vgahw (const char *p)
2060 {
2061 const char *opts;
2062
2063 default_vga = 0;
2064 vga_interface_type = VGA_NONE;
2065 if (strstart(p, "std", &opts)) {
2066 vga_interface_type = VGA_STD;
2067 } else if (strstart(p, "cirrus", &opts)) {
2068 vga_interface_type = VGA_CIRRUS;
2069 } else if (strstart(p, "vmware", &opts)) {
2070 vga_interface_type = VGA_VMWARE;
2071 } else if (strstart(p, "xenfb", &opts)) {
2072 vga_interface_type = VGA_XENFB;
2073 } else if (!strstart(p, "none", &opts)) {
2074 invalid_vga:
2075 fprintf(stderr, "Unknown vga type: %s\n", p);
2076 exit(1);
2077 }
2078 while (*opts) {
2079 const char *nextopt;
2080
2081 if (strstart(opts, ",retrace=", &nextopt)) {
2082 opts = nextopt;
2083 if (strstart(opts, "dumb", &nextopt))
2084 vga_retrace_method = VGA_RETRACE_DUMB;
2085 else if (strstart(opts, "precise", &nextopt))
2086 vga_retrace_method = VGA_RETRACE_PRECISE;
2087 else goto invalid_vga;
2088 } else goto invalid_vga;
2089 opts = nextopt;
2090 }
2091 }
2092
2093 static int balloon_parse(const char *arg)
2094 {
2095 QemuOpts *opts;
2096
2097 if (strcmp(arg, "none") == 0) {
2098 return 0;
2099 }
2100
2101 if (!strncmp(arg, "virtio", 6)) {
2102 if (arg[6] == ',') {
2103 /* have params -> parse them */
2104 opts = qemu_opts_parse(&qemu_device_opts, arg+7, 0);
2105 if (!opts)
2106 return -1;
2107 } else {
2108 /* create empty opts */
2109 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2110 }
2111 qemu_opt_set(opts, "driver", "virtio-balloon-pci");
2112 return 0;
2113 }
2114
2115 return -1;
2116 }
2117
2118 #ifdef _WIN32
2119 static BOOL WINAPI qemu_ctrl_handler(DWORD type)
2120 {
2121 exit(STATUS_CONTROL_C_EXIT);
2122 return TRUE;
2123 }
2124 #endif
2125
2126 #ifndef _WIN32
2127
2128 static void termsig_handler(int signal)
2129 {
2130 qemu_system_shutdown_request();
2131 }
2132
2133 static void sigchld_handler(int signal)
2134 {
2135 waitpid(-1, NULL, WNOHANG);
2136 }
2137
2138 static void sighandler_setup(void)
2139 {
2140 struct sigaction act;
2141
2142 memset(&act, 0, sizeof(act));
2143 act.sa_handler = termsig_handler;
2144 sigaction(SIGINT, &act, NULL);
2145 sigaction(SIGHUP, &act, NULL);
2146 sigaction(SIGTERM, &act, NULL);
2147
2148 act.sa_handler = sigchld_handler;
2149 act.sa_flags = SA_NOCLDSTOP;
2150 sigaction(SIGCHLD, &act, NULL);
2151 }
2152
2153 #endif
2154
2155 #ifdef _WIN32
2156 /* Look for support files in the same directory as the executable. */
2157 static char *find_datadir(const char *argv0)
2158 {
2159 char *p;
2160 char buf[MAX_PATH];
2161 DWORD len;
2162
2163 len = GetModuleFileName(NULL, buf, sizeof(buf) - 1);
2164 if (len == 0) {
2165 return NULL;
2166 }
2167
2168 buf[len] = 0;
2169 p = buf + len - 1;
2170 while (p != buf && *p != '\\')
2171 p--;
2172 *p = 0;
2173 if (access(buf, R_OK) == 0) {
2174 return qemu_strdup(buf);
2175 }
2176 return NULL;
2177 }
2178 #else /* !_WIN32 */
2179
2180 /* Find a likely location for support files using the location of the binary.
2181 For installed binaries this will be "$bindir/../share/qemu". When
2182 running from the build tree this will be "$bindir/../pc-bios". */
2183 #define SHARE_SUFFIX "/share/qemu"
2184 #define BUILD_SUFFIX "/pc-bios"
2185 static char *find_datadir(const char *argv0)
2186 {
2187 char *dir;
2188 char *p = NULL;
2189 char *res;
2190 char buf[PATH_MAX];
2191 size_t max_len;
2192
2193 #if defined(__linux__)
2194 {
2195 int len;
2196 len = readlink("/proc/self/exe", buf, sizeof(buf) - 1);
2197 if (len > 0) {
2198 buf[len] = 0;
2199 p = buf;
2200 }
2201 }
2202 #elif defined(__FreeBSD__)
2203 {
2204 static int mib[4] = {CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, -1};
2205 size_t len = sizeof(buf) - 1;
2206
2207 *buf = '\0';
2208 if (!sysctl(mib, sizeof(mib)/sizeof(*mib), buf, &len, NULL, 0) &&
2209 *buf) {
2210 buf[sizeof(buf) - 1] = '\0';
2211 p = buf;
2212 }
2213 }
2214 #endif
2215 /* If we don't have any way of figuring out the actual executable
2216 location then try argv[0]. */
2217 if (!p) {
2218 p = realpath(argv0, buf);
2219 if (!p) {
2220 return NULL;
2221 }
2222 }
2223 dir = dirname(p);
2224 dir = dirname(dir);
2225
2226 max_len = strlen(dir) +
2227 MAX(strlen(SHARE_SUFFIX), strlen(BUILD_SUFFIX)) + 1;
2228 res = qemu_mallocz(max_len);
2229 snprintf(res, max_len, "%s%s", dir, SHARE_SUFFIX);
2230 if (access(res, R_OK)) {
2231 snprintf(res, max_len, "%s%s", dir, BUILD_SUFFIX);
2232 if (access(res, R_OK)) {
2233 qemu_free(res);
2234 res = NULL;
2235 }
2236 }
2237
2238 return res;
2239 }
2240 #undef SHARE_SUFFIX
2241 #undef BUILD_SUFFIX
2242 #endif
2243
2244 char *qemu_find_file(int type, const char *name)
2245 {
2246 int len;
2247 const char *subdir;
2248 char *buf;
2249
2250 /* If name contains path separators then try it as a straight path. */
2251 if ((strchr(name, '/') || strchr(name, '\\'))
2252 && access(name, R_OK) == 0) {
2253 return qemu_strdup(name);
2254 }
2255 switch (type) {
2256 case QEMU_FILE_TYPE_BIOS:
2257 subdir = "";
2258 break;
2259 case QEMU_FILE_TYPE_KEYMAP:
2260 subdir = "keymaps/";
2261 break;
2262 default:
2263 abort();
2264 }
2265 len = strlen(data_dir) + strlen(name) + strlen(subdir) + 2;
2266 buf = qemu_mallocz(len);
2267 snprintf(buf, len, "%s/%s%s", data_dir, subdir, name);
2268 if (access(buf, R_OK)) {
2269 qemu_free(buf);
2270 return NULL;
2271 }
2272 return buf;
2273 }
2274
2275 static int device_help_func(QemuOpts *opts, void *opaque)
2276 {
2277 return qdev_device_help(opts);
2278 }
2279
2280 static int device_init_func(QemuOpts *opts, void *opaque)
2281 {
2282 DeviceState *dev;
2283
2284 dev = qdev_device_add(opts);
2285 if (!dev)
2286 return -1;
2287 return 0;
2288 }
2289
2290 static int chardev_init_func(QemuOpts *opts, void *opaque)
2291 {
2292 CharDriverState *chr;
2293
2294 chr = qemu_chr_open_opts(opts, NULL);
2295 if (!chr)
2296 return -1;
2297 return 0;
2298 }
2299
2300 #ifdef CONFIG_LINUX
2301 static int fsdev_init_func(QemuOpts *opts, void *opaque)
2302 {
2303 int ret;
2304 ret = qemu_fsdev_add(opts);
2305
2306 return ret;
2307 }
2308 #endif
2309
2310 static int mon_init_func(QemuOpts *opts, void *opaque)
2311 {
2312 CharDriverState *chr;
2313 const char *chardev;
2314 const char *mode;
2315 int flags;
2316
2317 mode = qemu_opt_get(opts, "mode");
2318 if (mode == NULL) {
2319 mode = "readline";
2320 }
2321 if (strcmp(mode, "readline") == 0) {
2322 flags = MONITOR_USE_READLINE;
2323 } else if (strcmp(mode, "control") == 0) {
2324 flags = MONITOR_USE_CONTROL;
2325 } else {
2326 fprintf(stderr, "unknown monitor mode \"%s\"\n", mode);
2327 exit(1);
2328 }
2329
2330 if (qemu_opt_get_bool(opts, "default", 0))
2331 flags |= MONITOR_IS_DEFAULT;
2332
2333 chardev = qemu_opt_get(opts, "chardev");
2334 chr = qemu_chr_find(chardev);
2335 if (chr == NULL) {
2336 fprintf(stderr, "chardev \"%s\" not found\n", chardev);
2337 exit(1);
2338 }
2339
2340 monitor_init(chr, flags);
2341 return 0;
2342 }
2343
2344 static void monitor_parse(const char *optarg, const char *mode)
2345 {
2346 static int monitor_device_index = 0;
2347 QemuOpts *opts;
2348 const char *p;
2349 char label[32];
2350 int def = 0;
2351
2352 if (strstart(optarg, "chardev:", &p)) {
2353 snprintf(label, sizeof(label), "%s", p);
2354 } else {
2355 snprintf(label, sizeof(label), "compat_monitor%d",
2356 monitor_device_index);
2357 if (monitor_device_index == 0) {
2358 def = 1;
2359 }
2360 opts = qemu_chr_parse_compat(label, optarg);
2361 if (!opts) {
2362 fprintf(stderr, "parse error: %s\n", optarg);
2363 exit(1);
2364 }
2365 }
2366
2367 opts = qemu_opts_create(&qemu_mon_opts, label, 1);
2368 if (!opts) {
2369 fprintf(stderr, "duplicate chardev: %s\n", label);
2370 exit(1);
2371 }
2372 qemu_opt_set(opts, "mode", mode);
2373 qemu_opt_set(opts, "chardev", label);
2374 if (def)
2375 qemu_opt_set(opts, "default", "on");
2376 monitor_device_index++;
2377 }
2378
2379 struct device_config {
2380 enum {
2381 DEV_USB, /* -usbdevice */
2382 DEV_BT, /* -bt */
2383 DEV_SERIAL, /* -serial */
2384 DEV_PARALLEL, /* -parallel */
2385 DEV_VIRTCON, /* -virtioconsole */
2386 DEV_DEBUGCON, /* -debugcon */
2387 } type;
2388 const char *cmdline;
2389 QTAILQ_ENTRY(device_config) next;
2390 };
2391 QTAILQ_HEAD(, device_config) device_configs = QTAILQ_HEAD_INITIALIZER(device_configs);
2392
2393 static void add_device_config(int type, const char *cmdline)
2394 {
2395 struct device_config *conf;
2396
2397 conf = qemu_mallocz(sizeof(*conf));
2398 conf->type = type;
2399 conf->cmdline = cmdline;
2400 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2401 }
2402
2403 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2404 {
2405 struct device_config *conf;
2406 int rc;
2407
2408 QTAILQ_FOREACH(conf, &device_configs, next) {
2409 if (conf->type != type)
2410 continue;
2411 rc = func(conf->cmdline);
2412 if (0 != rc)
2413 return rc;
2414 }
2415 return 0;
2416 }
2417
2418 static int serial_parse(const char *devname)
2419 {
2420 static int index = 0;
2421 char label[32];
2422
2423 if (strcmp(devname, "none") == 0)
2424 return 0;
2425 if (index == MAX_SERIAL_PORTS) {
2426 fprintf(stderr, "qemu: too many serial ports\n");
2427 exit(1);
2428 }
2429 snprintf(label, sizeof(label), "serial%d", index);
2430 serial_hds[index] = qemu_chr_open(label, devname, NULL);
2431 if (!serial_hds[index]) {
2432 fprintf(stderr, "qemu: could not open serial device '%s': %s\n",
2433 devname, strerror(errno));
2434 return -1;
2435 }
2436 index++;
2437 return 0;
2438 }
2439
2440 static int parallel_parse(const char *devname)
2441 {
2442 static int index = 0;
2443 char label[32];
2444
2445 if (strcmp(devname, "none") == 0)
2446 return 0;
2447 if (index == MAX_PARALLEL_PORTS) {
2448 fprintf(stderr, "qemu: too many parallel ports\n");
2449 exit(1);
2450 }
2451 snprintf(label, sizeof(label), "parallel%d", index);
2452 parallel_hds[index] = qemu_chr_open(label, devname, NULL);
2453 if (!parallel_hds[index]) {
2454 fprintf(stderr, "qemu: could not open parallel device '%s': %s\n",
2455 devname, strerror(errno));
2456 return -1;
2457 }
2458 index++;
2459 return 0;
2460 }
2461
2462 static int virtcon_parse(const char *devname)
2463 {
2464 static int index = 0;
2465 char label[32];
2466 QemuOpts *bus_opts, *dev_opts;
2467
2468 if (strcmp(devname, "none") == 0)
2469 return 0;
2470 if (index == MAX_VIRTIO_CONSOLES) {
2471 fprintf(stderr, "qemu: too many virtio consoles\n");
2472 exit(1);
2473 }
2474
2475 bus_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2476 qemu_opt_set(bus_opts, "driver", "virtio-serial");
2477
2478 dev_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2479 qemu_opt_set(dev_opts, "driver", "virtconsole");
2480
2481 snprintf(label, sizeof(label), "virtcon%d", index);
2482 virtcon_hds[index] = qemu_chr_open(label, devname, NULL);
2483 if (!virtcon_hds[index]) {
2484 fprintf(stderr, "qemu: could not open virtio console '%s': %s\n",
2485 devname, strerror(errno));
2486 return -1;
2487 }
2488 qemu_opt_set(dev_opts, "chardev", label);
2489
2490 index++;
2491 return 0;
2492 }
2493
2494 static int debugcon_parse(const char *devname)
2495 {
2496 QemuOpts *opts;
2497
2498 if (!qemu_chr_open("debugcon", devname, NULL)) {
2499 exit(1);
2500 }
2501 opts = qemu_opts_create(&qemu_device_opts, "debugcon", 1);
2502 if (!opts) {
2503 fprintf(stderr, "qemu: already have a debugcon device\n");
2504 exit(1);
2505 }
2506 qemu_opt_set(opts, "driver", "isa-debugcon");
2507 qemu_opt_set(opts, "chardev", "debugcon");
2508 return 0;
2509 }
2510
2511 static const QEMUOption *lookup_opt(int argc, char **argv,
2512 const char **poptarg, int *poptind)
2513 {
2514 const QEMUOption *popt;
2515 int optind = *poptind;
2516 char *r = argv[optind];
2517 const char *optarg;
2518
2519 loc_set_cmdline(argv, optind, 1);
2520 optind++;
2521 /* Treat --foo the same as -foo. */
2522 if (r[1] == '-')
2523 r++;
2524 popt = qemu_options;
2525 for(;;) {
2526 if (!popt->name) {
2527 error_report("invalid option");
2528 exit(1);
2529 }
2530 if (!strcmp(popt->name, r + 1))
2531 break;
2532 popt++;
2533 }
2534 if (popt->flags & HAS_ARG) {
2535 if (optind >= argc) {
2536 error_report("requires an argument");
2537 exit(1);
2538 }
2539 optarg = argv[optind++];
2540 loc_set_cmdline(argv, optind - 2, 2);
2541 } else {
2542 optarg = NULL;
2543 }
2544
2545 *poptarg = optarg;
2546 *poptind = optind;
2547
2548 return popt;
2549 }
2550
2551 int main(int argc, char **argv, char **envp)
2552 {
2553 const char *gdbstub_dev = NULL;
2554 int i;
2555 int snapshot, linux_boot;
2556 const char *icount_option = NULL;
2557 const char *initrd_filename;
2558 const char *kernel_filename, *kernel_cmdline;
2559 char boot_devices[33] = "cad"; /* default to HD->floppy->CD-ROM */
2560 DisplayState *ds;
2561 DisplayChangeListener *dcl;
2562 int cyls, heads, secs, translation;
2563 QemuOpts *hda_opts = NULL, *opts;
2564 int optind;
2565 const char *optarg;
2566 const char *loadvm = NULL;
2567 QEMUMachine *machine;
2568 const char *cpu_model;
2569 #ifndef _WIN32
2570 int fds[2];
2571 #endif
2572 int tb_size;
2573 const char *pid_file = NULL;
2574 const char *incoming = NULL;
2575 #ifndef _WIN32
2576 int fd = 0;
2577 struct passwd *pwd = NULL;
2578 const char *chroot_dir = NULL;
2579 const char *run_as = NULL;
2580 #endif
2581 int show_vnc_port = 0;
2582 int defconfig = 1;
2583
2584 error_set_progname(argv[0]);
2585
2586 init_clocks();
2587
2588 qemu_cache_utils_init(envp);
2589
2590 QLIST_INIT (&vm_change_state_head);
2591 #ifndef _WIN32
2592 {
2593 struct sigaction act;
2594 sigfillset(&act.sa_mask);
2595 act.sa_flags = 0;
2596 act.sa_handler = SIG_IGN;
2597 sigaction(SIGPIPE, &act, NULL);
2598 }
2599 #else
2600 SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE);
2601 /* Note: cpu_interrupt() is currently not SMP safe, so we force
2602 QEMU to run on a single CPU */
2603 {
2604 HANDLE h;
2605 DWORD mask, smask;
2606 int i;
2607 h = GetCurrentProcess();
2608 if (GetProcessAffinityMask(h, &mask, &smask)) {
2609 for(i = 0; i < 32; i++) {
2610 if (mask & (1 << i))
2611 break;
2612 }
2613 if (i != 32) {
2614 mask = 1 << i;
2615 SetProcessAffinityMask(h, mask);
2616 }
2617 }
2618 }
2619 #endif
2620
2621 module_call_init(MODULE_INIT_MACHINE);
2622 machine = find_default_machine();
2623 cpu_model = NULL;
2624 initrd_filename = NULL;
2625 ram_size = 0;
2626 snapshot = 0;
2627 kernel_filename = NULL;
2628 kernel_cmdline = "";
2629 cyls = heads = secs = 0;
2630 translation = BIOS_ATA_TRANSLATION_AUTO;
2631
2632 for (i = 0; i < MAX_NODES; i++) {
2633 node_mem[i] = 0;
2634 node_cpumask[i] = 0;
2635 }
2636
2637 nb_numa_nodes = 0;
2638 nb_nics = 0;
2639
2640 tb_size = 0;
2641 autostart= 1;
2642
2643 /* first pass of option parsing */
2644 optind = 1;
2645 while (optind < argc) {
2646 if (argv[optind][0] != '-') {
2647 /* disk image */
2648 optind++;
2649 continue;
2650 } else {
2651 const QEMUOption *popt;
2652
2653 popt = lookup_opt(argc, argv, &optarg, &optind);
2654 switch (popt->index) {
2655 case QEMU_OPTION_nodefconfig:
2656 defconfig=0;
2657 break;
2658 }
2659 }
2660 }
2661
2662 if (defconfig) {
2663 int ret;
2664
2665 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2666 if (ret < 0 && ret != -ENOENT) {
2667 exit(1);
2668 }
2669
2670 ret = qemu_read_config_file(arch_config_name);
2671 if (ret < 0 && ret != -ENOENT) {
2672 exit(1);
2673 }
2674 }
2675 cpudef_init();
2676
2677 /* second pass of option parsing */
2678 optind = 1;
2679 for(;;) {
2680 if (optind >= argc)
2681 break;
2682 if (argv[optind][0] != '-') {
2683 hda_opts = drive_add(argv[optind++], HD_ALIAS, 0);
2684 } else {
2685 const QEMUOption *popt;
2686
2687 popt = lookup_opt(argc, argv, &optarg, &optind);
2688 if (!(popt->arch_mask & arch_type)) {
2689 printf("Option %s not supported for this target\n", popt->name);
2690 exit(1);
2691 }
2692 switch(popt->index) {
2693 case QEMU_OPTION_M:
2694 machine = find_machine(optarg);
2695 if (!machine) {
2696 QEMUMachine *m;
2697 printf("Supported machines are:\n");
2698 for(m = first_machine; m != NULL; m = m->next) {
2699 if (m->alias)
2700 printf("%-10s %s (alias of %s)\n",
2701 m->alias, m->desc, m->name);
2702 printf("%-10s %s%s\n",
2703 m->name, m->desc,
2704 m->is_default ? " (default)" : "");
2705 }
2706 exit(*optarg != '?');
2707 }
2708 break;
2709 case QEMU_OPTION_cpu:
2710 /* hw initialization will check this */
2711 if (*optarg == '?') {
2712 list_cpus(stdout, &fprintf, optarg);
2713 exit(0);
2714 } else {
2715 cpu_model = optarg;
2716 }
2717 break;
2718 case QEMU_OPTION_initrd:
2719 initrd_filename = optarg;
2720 break;
2721 case QEMU_OPTION_hda:
2722 if (cyls == 0)
2723 hda_opts = drive_add(optarg, HD_ALIAS, 0);
2724 else
2725 hda_opts = drive_add(optarg, HD_ALIAS
2726 ",cyls=%d,heads=%d,secs=%d%s",
2727 0, cyls, heads, secs,
2728 translation == BIOS_ATA_TRANSLATION_LBA ?
2729 ",trans=lba" :
2730 translation == BIOS_ATA_TRANSLATION_NONE ?
2731 ",trans=none" : "");
2732 break;
2733 case QEMU_OPTION_hdb:
2734 case QEMU_OPTION_hdc:
2735 case QEMU_OPTION_hdd:
2736 drive_add(optarg, HD_ALIAS, popt->index - QEMU_OPTION_hda);
2737 break;
2738 case QEMU_OPTION_drive:
2739 drive_add(NULL, "%s", optarg);
2740 break;
2741 case QEMU_OPTION_set:
2742 if (qemu_set_option(optarg) != 0)
2743 exit(1);
2744 break;
2745 case QEMU_OPTION_global:
2746 if (qemu_global_option(optarg) != 0)
2747 exit(1);
2748 break;
2749 case QEMU_OPTION_mtdblock:
2750 drive_add(optarg, MTD_ALIAS);
2751 break;
2752 case QEMU_OPTION_sd:
2753 drive_add(optarg, SD_ALIAS);
2754 break;
2755 case QEMU_OPTION_pflash:
2756 drive_add(optarg, PFLASH_ALIAS);
2757 break;
2758 case QEMU_OPTION_snapshot:
2759 snapshot = 1;
2760 break;
2761 case QEMU_OPTION_hdachs:
2762 {
2763 const char *p;
2764 p = optarg;
2765 cyls = strtol(p, (char **)&p, 0);
2766 if (cyls < 1 || cyls > 16383)
2767 goto chs_fail;
2768 if (*p != ',')
2769 goto chs_fail;
2770 p++;
2771 heads = strtol(p, (char **)&p, 0);
2772 if (heads < 1 || heads > 16)
2773 goto chs_fail;
2774 if (*p != ',')
2775 goto chs_fail;
2776 p++;
2777 secs = strtol(p, (char **)&p, 0);
2778 if (secs < 1 || secs > 63)
2779 goto chs_fail;
2780 if (*p == ',') {
2781 p++;
2782 if (!strcmp(p, "none"))
2783 translation = BIOS_ATA_TRANSLATION_NONE;
2784 else if (!strcmp(p, "lba"))
2785 translation = BIOS_ATA_TRANSLATION_LBA;
2786 else if (!strcmp(p, "auto"))
2787 translation = BIOS_ATA_TRANSLATION_AUTO;
2788 else
2789 goto chs_fail;
2790 } else if (*p != '\0') {
2791 chs_fail:
2792 fprintf(stderr, "qemu: invalid physical CHS format\n");
2793 exit(1);
2794 }
2795 if (hda_opts != NULL) {
2796 char num[16];
2797 snprintf(num, sizeof(num), "%d", cyls);
2798 qemu_opt_set(hda_opts, "cyls", num);
2799 snprintf(num, sizeof(num), "%d", heads);
2800 qemu_opt_set(hda_opts, "heads", num);
2801 snprintf(num, sizeof(num), "%d", secs);
2802 qemu_opt_set(hda_opts, "secs", num);
2803 if (translation == BIOS_ATA_TRANSLATION_LBA)
2804 qemu_opt_set(hda_opts, "trans", "lba");
2805 if (translation == BIOS_ATA_TRANSLATION_NONE)
2806 qemu_opt_set(hda_opts, "trans", "none");
2807 }
2808 }
2809 break;
2810 case QEMU_OPTION_numa:
2811 if (nb_numa_nodes >= MAX_NODES) {
2812 fprintf(stderr, "qemu: too many NUMA nodes\n");
2813 exit(1);
2814 }
2815 numa_add(optarg);
2816 break;
2817 case QEMU_OPTION_nographic:
2818 display_type = DT_NOGRAPHIC;
2819 break;
2820 #ifdef CONFIG_CURSES
2821 case QEMU_OPTION_curses:
2822 display_type = DT_CURSES;
2823 break;
2824 #endif
2825 case QEMU_OPTION_portrait:
2826 graphic_rotate = 1;
2827 break;
2828 case QEMU_OPTION_kernel:
2829 kernel_filename = optarg;
2830 break;
2831 case QEMU_OPTION_append:
2832 kernel_cmdline = optarg;
2833 break;
2834 case QEMU_OPTION_cdrom:
2835 drive_add(optarg, CDROM_ALIAS);
2836 break;
2837 case QEMU_OPTION_boot:
2838 {
2839 static const char * const params[] = {
2840 "order", "once", "menu", NULL
2841 };
2842 char buf[sizeof(boot_devices)];
2843 char *standard_boot_devices;
2844 int legacy = 0;
2845
2846 if (!strchr(optarg, '=')) {
2847 legacy = 1;
2848 pstrcpy(buf, sizeof(buf), optarg);
2849 } else if (check_params(buf, sizeof(buf), params, optarg) < 0) {
2850 fprintf(stderr,
2851 "qemu: unknown boot parameter '%s' in '%s'\n",
2852 buf, optarg);
2853 exit(1);
2854 }
2855
2856 if (legacy ||
2857 get_param_value(buf, sizeof(buf), "order", optarg)) {
2858 validate_bootdevices(buf);
2859 pstrcpy(boot_devices, sizeof(boot_devices), buf);
2860 }
2861 if (!legacy) {
2862 if (get_param_value(buf, sizeof(buf),
2863 "once", optarg)) {
2864 validate_bootdevices(buf);
2865 standard_boot_devices = qemu_strdup(boot_devices);
2866 pstrcpy(boot_devices, sizeof(boot_devices), buf);
2867 qemu_register_reset(restore_boot_devices,
2868 standard_boot_devices);
2869 }
2870 if (get_param_value(buf, sizeof(buf),
2871 "menu", optarg)) {
2872 if (!strcmp(buf, "on")) {
2873 boot_menu = 1;
2874 } else if (!strcmp(buf, "off")) {
2875 boot_menu = 0;
2876 } else {
2877 fprintf(stderr,
2878 "qemu: invalid option value '%s'\n",
2879 buf);
2880 exit(1);
2881 }
2882 }
2883 }
2884 }
2885 break;
2886 case QEMU_OPTION_fda:
2887 case QEMU_OPTION_fdb:
2888 drive_add(optarg, FD_ALIAS, popt->index - QEMU_OPTION_fda);
2889 break;
2890 case QEMU_OPTION_no_fd_bootchk:
2891 fd_bootchk = 0;
2892 break;
2893 case QEMU_OPTION_netdev:
2894 if (net_client_parse(&qemu_netdev_opts, optarg) == -1) {
2895 exit(1);
2896 }
2897 break;
2898 case QEMU_OPTION_net:
2899 if (net_client_parse(&qemu_net_opts, optarg) == -1) {
2900 exit(1);
2901 }
2902 break;
2903 #ifdef CONFIG_SLIRP
2904 case QEMU_OPTION_tftp:
2905 legacy_tftp_prefix = optarg;
2906 break;
2907 case QEMU_OPTION_bootp:
2908 legacy_bootp_filename = optarg;
2909 break;
2910 #ifndef _WIN32
2911 case QEMU_OPTION_smb:
2912 if (net_slirp_smb(optarg) < 0)
2913 exit(1);
2914 break;
2915 #endif
2916 case QEMU_OPTION_redir:
2917 if (net_slirp_redir(optarg) < 0)
2918 exit(1);
2919 break;
2920 #endif
2921 case QEMU_OPTION_bt:
2922 add_device_config(DEV_BT, optarg);
2923 break;
2924 case QEMU_OPTION_audio_help:
2925 if (!(audio_available())) {
2926 printf("Option %s not supported for this target\n", popt->name);
2927 exit(1);
2928 }
2929 AUD_help ();
2930 exit (0);
2931 break;
2932 case QEMU_OPTION_soundhw:
2933 if (!(audio_available())) {
2934 printf("Option %s not supported for this target\n", popt->name);
2935 exit(1);
2936 }
2937 select_soundhw (optarg);
2938 break;
2939 case QEMU_OPTION_h:
2940 help(0);
2941 break;
2942 case QEMU_OPTION_version:
2943 version();
2944 exit(0);
2945 break;
2946 case QEMU_OPTION_m: {
2947 uint64_t value;
2948 char *ptr;
2949
2950 value = strtoul(optarg, &ptr, 10);
2951 switch (*ptr) {
2952 case 0: case 'M': case 'm':
2953 value <<= 20;
2954 break;
2955 case 'G': case 'g':
2956 value <<= 30;
2957 break;
2958 default:
2959 fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
2960 exit(1);
2961 }
2962
2963 /* On 32-bit hosts, QEMU is limited by virtual address space */
2964 if (value > (2047 << 20) && HOST_LONG_BITS == 32) {
2965 fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
2966 exit(1);
2967 }
2968 if (value != (uint64_t)(ram_addr_t)value) {
2969 fprintf(stderr, "qemu: ram size too large\n");
2970 exit(1);
2971 }
2972 ram_size = value;
2973 break;
2974 }
2975 case QEMU_OPTION_mempath:
2976 mem_path = optarg;
2977 break;
2978 #ifdef MAP_POPULATE
2979 case QEMU_OPTION_mem_prealloc:
2980 mem_prealloc = 1;
2981 break;
2982 #endif
2983 case QEMU_OPTION_d:
2984 set_cpu_log(optarg);
2985 break;
2986 case QEMU_OPTION_s:
2987 gdbstub_dev = "tcp::" DEFAULT_GDBSTUB_PORT;
2988 break;
2989 case QEMU_OPTION_gdb:
2990 gdbstub_dev = optarg;
2991 break;
2992 case QEMU_OPTION_L:
2993 data_dir = optarg;
2994 break;
2995 case QEMU_OPTION_bios:
2996 bios_name = optarg;
2997 break;
2998 case QEMU_OPTION_singlestep:
2999 singlestep = 1;
3000 break;
3001 case QEMU_OPTION_S:
3002 autostart = 0;
3003 break;
3004 case QEMU_OPTION_k:
3005 keyboard_layout = optarg;
3006 break;
3007 case QEMU_OPTION_localtime:
3008 rtc_utc = 0;
3009 break;
3010 case QEMU_OPTION_vga:
3011 select_vgahw (optarg);
3012 break;
3013 case QEMU_OPTION_g:
3014 {
3015 const char *p;
3016 int w, h, depth;
3017 p = optarg;
3018 w = strtol(p, (char **)&p, 10);
3019 if (w <= 0) {
3020 graphic_error:
3021 fprintf(stderr, "qemu: invalid resolution or depth\n");
3022 exit(1);
3023 }
3024 if (*p != 'x')
3025 goto graphic_error;
3026 p++;
3027 h = strtol(p, (char **)&p, 10);
3028 if (h <= 0)
3029 goto graphic_error;
3030 if (*p == 'x') {
3031 p++;
3032 depth = strtol(p, (char **)&p, 10);
3033 if (depth != 8 && depth != 15 && depth != 16 &&
3034 depth != 24 && depth != 32)
3035 goto graphic_error;
3036 } else if (*p == '\0') {
3037 depth = graphic_depth;
3038 } else {
3039 goto graphic_error;
3040 }
3041
3042 graphic_width = w;
3043 graphic_height = h;
3044 graphic_depth = depth;
3045 }
3046 break;
3047 case QEMU_OPTION_echr:
3048 {
3049 char *r;
3050 term_escape_char = strtol(optarg, &r, 0);
3051 if (r == optarg)
3052 printf("Bad argument to echr\n");
3053 break;
3054 }
3055 case QEMU_OPTION_monitor:
3056 monitor_parse(optarg, "readline");
3057 default_monitor = 0;
3058 break;
3059 case QEMU_OPTION_qmp:
3060 monitor_parse(optarg, "control");
3061 default_monitor = 0;
3062 break;
3063 case QEMU_OPTION_mon:
3064 opts = qemu_opts_parse(&qemu_mon_opts, optarg, 1);
3065 if (!opts) {
3066 exit(1);
3067 }
3068 default_monitor = 0;
3069 break;
3070 case QEMU_OPTION_chardev:
3071 opts = qemu_opts_parse(&qemu_chardev_opts, optarg, 1);
3072 if (!opts) {
3073 exit(1);
3074 }
3075 break;
3076 #ifdef CONFIG_LINUX
3077 case QEMU_OPTION_fsdev:
3078 opts = qemu_opts_parse(&qemu_fsdev_opts, optarg, 1);
3079 if (!opts) {
3080 fprintf(stderr, "parse error: %s\n", optarg);
3081 exit(1);
3082 }
3083 break;
3084 case QEMU_OPTION_virtfs: {
3085 char *arg_fsdev = NULL;
3086 char *arg_9p = NULL;
3087 int len = 0;
3088
3089 opts = qemu_opts_parse(&qemu_virtfs_opts, optarg, 1);
3090 if (!opts) {
3091 fprintf(stderr, "parse error: %s\n", optarg);
3092 exit(1);
3093 }
3094
3095 len = strlen(",id=,path=");
3096 len += strlen(qemu_opt_get(opts, "fstype"));
3097 len += strlen(qemu_opt_get(opts, "mount_tag"));
3098 len += strlen(qemu_opt_get(opts, "path"));
3099 arg_fsdev = qemu_malloc((len + 1) * sizeof(*arg_fsdev));
3100
3101 if (!arg_fsdev) {
3102 fprintf(stderr, "No memory to parse -fsdev for %s\n",
3103 optarg);
3104 exit(1);
3105 }
3106
3107 sprintf(arg_fsdev, "%s,id=%s,path=%s",
3108 qemu_opt_get(opts, "fstype"),
3109 qemu_opt_get(opts, "mount_tag"),
3110 qemu_opt_get(opts, "path"));
3111
3112 len = strlen("virtio-9p-pci,fsdev=,mount_tag=");
3113 len += 2*strlen(qemu_opt_get(opts, "mount_tag"));
3114 arg_9p = qemu_malloc((len + 1) * sizeof(*arg_9p));
3115
3116 if (!arg_9p) {
3117 fprintf(stderr, "No memory to parse -device for %s\n",
3118 optarg);
3119 exit(1);
3120 }
3121
3122 sprintf(arg_9p, "virtio-9p-pci,fsdev=%s,mount_tag=%s",
3123 qemu_opt_get(opts, "mount_tag"),
3124 qemu_opt_get(opts, "mount_tag"));
3125
3126 if (!qemu_opts_parse(&qemu_fsdev_opts, arg_fsdev, 1)) {
3127 fprintf(stderr, "parse error [fsdev]: %s\n", optarg);
3128 exit(1);
3129 }
3130
3131 if (!qemu_opts_parse(&qemu_device_opts, arg_9p, 1)) {
3132 fprintf(stderr, "parse error [device]: %s\n", optarg);
3133 exit(1);
3134 }
3135
3136 qemu_free(arg_fsdev);
3137 qemu_free(arg_9p);
3138 break;
3139 }
3140 #endif
3141 case QEMU_OPTION_serial:
3142 add_device_config(DEV_SERIAL, optarg);
3143 default_serial = 0;
3144 if (strncmp(optarg, "mon:", 4) == 0) {
3145 default_monitor = 0;
3146 }
3147 break;
3148 case QEMU_OPTION_watchdog:
3149 if (watchdog) {
3150 fprintf(stderr,
3151 "qemu: only one watchdog option may be given\n");
3152 return 1;
3153 }
3154 watchdog = optarg;
3155 break;
3156 case QEMU_OPTION_watchdog_action:
3157 if (select_watchdog_action(optarg) == -1) {
3158 fprintf(stderr, "Unknown -watchdog-action parameter\n");
3159 exit(1);
3160 }
3161 break;
3162 case QEMU_OPTION_virtiocon:
3163 add_device_config(DEV_VIRTCON, optarg);
3164 default_virtcon = 0;
3165 if (strncmp(optarg, "mon:", 4) == 0) {
3166 default_monitor = 0;
3167 }
3168 break;
3169 case QEMU_OPTION_parallel:
3170 add_device_config(DEV_PARALLEL, optarg);
3171 default_parallel = 0;
3172 if (strncmp(optarg, "mon:", 4) == 0) {
3173 default_monitor = 0;
3174 }
3175 break;
3176 case QEMU_OPTION_debugcon:
3177 add_device_config(DEV_DEBUGCON, optarg);
3178 break;
3179 case QEMU_OPTION_loadvm:
3180 loadvm = optarg;
3181 break;
3182 case QEMU_OPTION_full_screen:
3183 full_screen = 1;
3184 break;
3185 #ifdef CONFIG_SDL
3186 case QEMU_OPTION_no_frame:
3187 no_frame = 1;
3188 break;
3189 case QEMU_OPTION_alt_grab:
3190 alt_grab = 1;
3191 break;
3192 case QEMU_OPTION_ctrl_grab:
3193 ctrl_grab = 1;
3194 break;
3195 case QEMU_OPTION_no_quit:
3196 no_quit = 1;
3197 break;
3198 case QEMU_OPTION_sdl:
3199 display_type = DT_SDL;
3200 break;
3201 #endif
3202 case QEMU_OPTION_pidfile:
3203 pid_file = optarg;
3204 break;
3205 case QEMU_OPTION_win2k_hack:
3206 win2k_install_hack = 1;
3207 break;
3208 case QEMU_OPTION_rtc_td_hack:
3209 rtc_td_hack = 1;
3210 break;
3211 case QEMU_OPTION_acpitable:
3212 do_acpitable_option(optarg);
3213 break;
3214 case QEMU_OPTION_smbios:
3215 do_smbios_option(optarg);
3216 break;
3217 case QEMU_OPTION_enable_kvm:
3218 kvm_allowed = 1;
3219 break;
3220 case QEMU_OPTION_usb:
3221 usb_enabled = 1;
3222 break;
3223 case QEMU_OPTION_usbdevice:
3224 usb_enabled = 1;
3225 add_device_config(DEV_USB, optarg);
3226 break;
3227 case QEMU_OPTION_device:
3228 if (!qemu_opts_parse(&qemu_device_opts, optarg, 1)) {
3229 exit(1);
3230 }
3231 break;
3232 case QEMU_OPTION_smp:
3233 smp_parse(optarg);
3234 if (smp_cpus < 1) {
3235 fprintf(stderr, "Invalid number of CPUs\n");
3236 exit(1);
3237 }
3238 if (max_cpus < smp_cpus) {
3239 fprintf(stderr, "maxcpus must be equal to or greater than "
3240 "smp\n");
3241 exit(1);
3242 }
3243 if (max_cpus > 255) {
3244 fprintf(stderr, "Unsupported number of maxcpus\n");
3245 exit(1);
3246 }
3247 break;
3248 case QEMU_OPTION_vnc:
3249 display_type = DT_VNC;
3250 vnc_display = optarg;
3251 break;
3252 case QEMU_OPTION_no_acpi:
3253 acpi_enabled = 0;
3254 break;
3255 case QEMU_OPTION_no_hpet:
3256 no_hpet = 1;
3257 break;
3258 case QEMU_OPTION_balloon:
3259 if (balloon_parse(optarg) < 0) {
3260 fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
3261 exit(1);
3262 }
3263 break;
3264 case QEMU_OPTION_no_reboot:
3265 no_reboot = 1;
3266 break;
3267 case QEMU_OPTION_no_shutdown:
3268 no_shutdown = 1;
3269 break;
3270 case QEMU_OPTION_show_cursor:
3271 cursor_hide = 0;
3272 break;
3273 case QEMU_OPTION_uuid:
3274 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
3275 fprintf(stderr, "Fail to parse UUID string."
3276 " Wrong format.\n");
3277 exit(1);
3278 }
3279 break;
3280 #ifndef _WIN32
3281 case QEMU_OPTION_daemonize:
3282 daemonize = 1;
3283 break;
3284 #endif
3285 case QEMU_OPTION_option_rom:
3286 if (nb_option_roms >= MAX_OPTION_ROMS) {
3287 fprintf(stderr, "Too many option ROMs\n");
3288 exit(1);
3289 }
3290 option_rom[nb_option_roms] = optarg;
3291 nb_option_roms++;
3292 break;
3293 case QEMU_OPTION_semihosting:
3294 semihosting_enabled = 1;
3295 break;
3296 case QEMU_OPTION_name:
3297 qemu_name = qemu_strdup(optarg);
3298 {
3299 char *p = strchr(qemu_name, ',');
3300 if (p != NULL) {
3301 *p++ = 0;
3302 if (strncmp(p, "process=", 8)) {
3303 fprintf(stderr, "Unknown subargument %s to -name", p);
3304 exit(1);
3305 }
3306 p += 8;
3307 set_proc_name(p);
3308 }
3309 }
3310 break;
3311 case QEMU_OPTION_prom_env:
3312 if (nb_prom_envs >= MAX_PROM_ENVS) {
3313 fprintf(stderr, "Too many prom variables\n");
3314 exit(1);
3315 }
3316 prom_envs[nb_prom_envs] = optarg;
3317 nb_prom_envs++;
3318 break;
3319 case QEMU_OPTION_old_param:
3320 old_param = 1;
3321 break;
3322 case QEMU_OPTION_clock:
3323 configure_alarms(optarg);
3324 break;
3325 case QEMU_OPTION_startdate:
3326 configure_rtc_date_offset(optarg, 1);
3327 break;
3328 case QEMU_OPTION_rtc:
3329 opts = qemu_opts_parse(&qemu_rtc_opts, optarg, 0);
3330 if (!opts) {
3331 exit(1);
3332 }
3333 configure_rtc(opts);
3334 break;
3335 case QEMU_OPTION_tb_size:
3336 tb_size = strtol(optarg, NULL, 0);
3337 if (tb_size < 0)
3338 tb_size = 0;
3339 break;
3340 case QEMU_OPTION_icount:
3341 icount_option = optarg;
3342 break;
3343 case QEMU_OPTION_incoming:
3344 incoming = optarg;
3345 break;
3346 case QEMU_OPTION_nodefaults:
3347 default_serial = 0;
3348 default_parallel = 0;
3349 default_virtcon = 0;
3350 default_monitor = 0;
3351 default_vga = 0;
3352 default_net = 0;
3353 default_floppy = 0;
3354 default_cdrom = 0;
3355 default_sdcard = 0;
3356 break;
3357 #ifndef _WIN32
3358 case QEMU_OPTION_chroot:
3359 chroot_dir = optarg;
3360 break;
3361 case QEMU_OPTION_runas:
3362 run_as = optarg;
3363 break;
3364 #endif
3365 case QEMU_OPTION_xen_domid:
3366 if (!(xen_available())) {
3367 printf("Option %s not supported for this target\n", popt->name);
3368 exit(1);
3369 }
3370 xen_domid = atoi(optarg);
3371 break;
3372 case QEMU_OPTION_xen_create:
3373 if (!(xen_available())) {
3374 printf("Option %s not supported for this target\n", popt->name);
3375 exit(1);
3376 }
3377 xen_mode = XEN_CREATE;
3378 break;
3379 case QEMU_OPTION_xen_attach:
3380 if (!(xen_available())) {
3381 printf("Option %s not supported for this target\n", popt->name);
3382 exit(1);
3383 }
3384 xen_mode = XEN_ATTACH;
3385 break;
3386 case QEMU_OPTION_readconfig:
3387 {
3388 int ret = qemu_read_config_file(optarg);
3389 if (ret < 0) {
3390 fprintf(stderr, "read config %s: %s\n", optarg,
3391 strerror(-ret));
3392 exit(1);
3393 }
3394 break;
3395 }
3396 case QEMU_OPTION_writeconfig:
3397 {
3398 FILE *fp;
3399 if (strcmp(optarg, "-") == 0) {
3400 fp = stdout;
3401 } else {
3402 fp = fopen(optarg, "w");
3403 if (fp == NULL) {
3404 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
3405 exit(1);
3406 }
3407 }
3408 qemu_config_write(fp);
3409 fclose(fp);
3410 break;
3411 }
3412 }
3413 }
3414 }
3415 loc_set_none();
3416
3417 /* If no data_dir is specified then try to find it relative to the
3418 executable path. */
3419 if (!data_dir) {
3420 data_dir = find_datadir(argv[0]);
3421 }
3422 /* If all else fails use the install patch specified when building. */
3423 if (!data_dir) {
3424 data_dir = CONFIG_QEMU_SHAREDIR;
3425 }
3426
3427 /*
3428 * Default to max_cpus = smp_cpus, in case the user doesn't
3429 * specify a max_cpus value.
3430 */
3431 if (!max_cpus)
3432 max_cpus = smp_cpus;
3433
3434 machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
3435 if (smp_cpus > machine->max_cpus) {
3436 fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
3437 "supported by machine `%s' (%d)\n", smp_cpus, machine->name,
3438 machine->max_cpus);
3439 exit(1);
3440 }
3441
3442 qemu_opts_foreach(&qemu_device_opts, default_driver_check, NULL, 0);
3443 qemu_opts_foreach(&qemu_global_opts, default_driver_check, NULL, 0);
3444
3445 if (machine->no_serial) {
3446 default_serial = 0;
3447 }
3448 if (machine->no_parallel) {
3449 default_parallel = 0;
3450 }
3451 if (!machine->use_virtcon) {
3452 default_virtcon = 0;
3453 }
3454 if (machine->no_vga) {
3455 default_vga = 0;
3456 }
3457 if (machine->no_floppy) {
3458 default_floppy = 0;
3459 }
3460 if (machine->no_cdrom) {
3461 default_cdrom = 0;
3462 }
3463 if (machine->no_sdcard) {
3464 default_sdcard = 0;
3465 }
3466
3467 if (display_type == DT_NOGRAPHIC) {
3468 if (default_parallel)
3469 add_device_config(DEV_PARALLEL, "null");
3470 if (default_serial && default_monitor) {
3471 add_device_config(DEV_SERIAL, "mon:stdio");
3472 } else if (default_virtcon && default_monitor) {
3473 add_device_config(DEV_VIRTCON, "mon:stdio");
3474 } else {
3475 if (default_serial)
3476 add_device_config(DEV_SERIAL, "stdio");
3477 if (default_virtcon)
3478 add_device_config(DEV_VIRTCON, "stdio");
3479 if (default_monitor)
3480 monitor_parse("stdio", "readline");
3481 }
3482 } else {
3483 if (default_serial)
3484 add_device_config(DEV_SERIAL, "vc:80Cx24C");
3485 if (default_parallel)
3486 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
3487 if (default_monitor)
3488 monitor_parse("vc:80Cx24C", "readline");
3489 if (default_virtcon)
3490 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
3491 }
3492 if (default_vga)
3493 vga_interface_type = VGA_CIRRUS;
3494
3495 socket_init();
3496
3497 if (qemu_opts_foreach(&qemu_chardev_opts, chardev_init_func, NULL, 1) != 0)
3498 exit(1);
3499 #ifdef CONFIG_LINUX
3500 if (qemu_opts_foreach(&qemu_fsdev_opts, fsdev_init_func, NULL, 1) != 0) {
3501 exit(1);
3502 }
3503 #endif
3504
3505 #ifndef _WIN32
3506 if (daemonize) {
3507 pid_t pid;
3508
3509 if (pipe(fds) == -1)
3510 exit(1);
3511
3512 pid = fork();
3513 if (pid > 0) {
3514 uint8_t status;
3515 ssize_t len;
3516
3517 close(fds[1]);
3518
3519 again:
3520 len = read(fds[0], &status, 1);
3521 if (len == -1 && (errno == EINTR))
3522 goto again;
3523
3524 if (len != 1)
3525 exit(1);
3526 else if (status == 1) {
3527 fprintf(stderr, "Could not acquire pidfile: %s\n", strerror(errno));
3528 exit(1);
3529 } else
3530 exit(0);
3531 } else if (pid < 0)
3532 exit(1);
3533
3534 close(fds[0]);
3535 qemu_set_cloexec(fds[1]);
3536
3537 setsid();
3538
3539 pid = fork();
3540 if (pid > 0)
3541 exit(0);
3542 else if (pid < 0)
3543 exit(1);
3544
3545 umask(027);
3546
3547 signal(SIGTSTP, SIG_IGN);
3548 signal(SIGTTOU, SIG_IGN);
3549 signal(SIGTTIN, SIG_IGN);
3550 }
3551 #endif
3552
3553 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
3554 #ifndef _WIN32
3555 if (daemonize) {
3556 uint8_t status = 1;
3557 if (write(fds[1], &status, 1) != 1) {
3558 perror("daemonize. Writing to pipe\n");
3559 }
3560 } else
3561 #endif
3562 fprintf(stderr, "Could not acquire pid file: %s\n", strerror(errno));
3563 exit(1);
3564 }
3565
3566 if (kvm_allowed) {
3567 int ret = kvm_init(smp_cpus);
3568 if (ret < 0) {
3569 if (!kvm_available()) {
3570 printf("KVM not supported for this target\n");
3571 } else {
3572 fprintf(stderr, "failed to initialize KVM: %s\n", strerror(-ret));
3573 }
3574 exit(1);
3575 }
3576 }
3577
3578 if (qemu_init_main_loop()) {
3579 fprintf(stderr, "qemu_init_main_loop failed\n");
3580 exit(1);
3581 }
3582 linux_boot = (kernel_filename != NULL);
3583
3584 if (!linux_boot && *kernel_cmdline != '\0') {
3585 fprintf(stderr, "-append only allowed with -kernel option\n");
3586 exit(1);
3587 }
3588
3589 if (!linux_boot && initrd_filename != NULL) {
3590 fprintf(stderr, "-initrd only allowed with -kernel option\n");
3591 exit(1);
3592 }
3593
3594 #ifndef _WIN32
3595 /* Win32 doesn't support line-buffering and requires size >= 2 */
3596 setvbuf(stdout, NULL, _IOLBF, 0);
3597 #endif
3598
3599 if (init_timer_alarm() < 0) {
3600 fprintf(stderr, "could not initialize alarm timer\n");
3601 exit(1);
3602 }
3603 configure_icount(icount_option);
3604
3605 if (net_init_clients() < 0) {
3606 exit(1);
3607 }
3608
3609 /* init the bluetooth world */
3610 if (foreach_device_config(DEV_BT, bt_parse))
3611 exit(1);
3612
3613 /* init the memory */
3614 if (ram_size == 0)
3615 ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
3616
3617 /* init the dynamic translator */
3618 cpu_exec_init_all(tb_size * 1024 * 1024);
3619
3620 bdrv_init_with_whitelist();
3621
3622 blk_mig_init();
3623
3624 if (default_cdrom) {
3625 /* we always create the cdrom drive, even if no disk is there */
3626 drive_add(NULL, CDROM_ALIAS);
3627 }
3628
3629 if (default_floppy) {
3630 /* we always create at least one floppy */
3631 drive_add(NULL, FD_ALIAS, 0);
3632 }
3633
3634 if (default_sdcard) {
3635 /* we always create one sd slot, even if no card is in it */
3636 drive_add(NULL, SD_ALIAS);
3637 }
3638
3639 /* open the virtual block devices */
3640 if (snapshot)
3641 qemu_opts_foreach(&qemu_drive_opts, drive_enable_snapshot, NULL, 0);
3642 if (qemu_opts_foreach(&qemu_drive_opts, drive_init_func, machine, 1) != 0)
3643 exit(1);
3644
3645 register_savevm_live("ram", 0, 3, NULL, ram_save_live, NULL,
3646 ram_load, NULL);
3647
3648 if (nb_numa_nodes > 0) {
3649 int i;
3650
3651 if (nb_numa_nodes > smp_cpus) {
3652 nb_numa_nodes = smp_cpus;
3653 }
3654
3655 /* If no memory size if given for any node, assume the default case
3656 * and distribute the available memory equally across all nodes
3657 */
3658 for (i = 0; i < nb_numa_nodes; i++) {
3659 if (node_mem[i] != 0)
3660 break;
3661 }
3662 if (i == nb_numa_nodes) {
3663 uint64_t usedmem = 0;
3664
3665 /* On Linux, the each node's border has to be 8MB aligned,
3666 * the final node gets the rest.
3667 */
3668 for (i = 0; i < nb_numa_nodes - 1; i++) {
3669 node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1);
3670 usedmem += node_mem[i];
3671 }
3672 node_mem[i] = ram_size - usedmem;
3673 }
3674
3675 for (i = 0; i < nb_numa_nodes; i++) {
3676 if (node_cpumask[i] != 0)
3677 break;
3678 }
3679 /* assigning the VCPUs round-robin is easier to implement, guest OSes
3680 * must cope with this anyway, because there are BIOSes out there in
3681 * real machines which also use this scheme.
3682 */
3683 if (i == nb_numa_nodes) {
3684 for (i = 0; i < smp_cpus; i++) {
3685 node_cpumask[i % nb_numa_nodes] |= 1 << i;
3686 }
3687 }
3688 }
3689
3690 if (qemu_opts_foreach(&qemu_mon_opts, mon_init_func, NULL, 1) != 0) {
3691 exit(1);
3692 }
3693
3694 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
3695 exit(1);
3696 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
3697 exit(1);
3698 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
3699 exit(1);
3700 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
3701 exit(1);
3702
3703 module_call_init(MODULE_INIT_DEVICE);
3704
3705 if (qemu_opts_foreach(&qemu_device_opts, device_help_func, NULL, 0) != 0)
3706 exit(0);
3707
3708 if (watchdog) {
3709 i = select_watchdog(watchdog);
3710 if (i > 0)
3711 exit (i == 1 ? 1 : 0);
3712 }
3713
3714 if (machine->compat_props) {
3715 qdev_prop_register_global_list(machine->compat_props);
3716 }
3717 qemu_add_globals();
3718
3719 machine->init(ram_size, boot_devices,
3720 kernel_filename, kernel_cmdline, initrd_filename, cpu_model);
3721
3722 cpu_synchronize_all_post_init();
3723
3724 #ifndef _WIN32
3725 /* must be after terminal init, SDL library changes signal handlers */
3726 sighandler_setup();
3727 #endif
3728
3729 set_numa_modes();
3730
3731 current_machine = machine;
3732
3733 /* init USB devices */
3734 if (usb_enabled) {
3735 if (foreach_device_config(DEV_USB, usb_parse) < 0)
3736 exit(1);
3737 }
3738
3739 /* init generic devices */
3740 if (qemu_opts_foreach(&qemu_device_opts, device_init_func, NULL, 1) != 0)
3741 exit(1);
3742
3743 net_check_clients();
3744
3745 /* just use the first displaystate for the moment */
3746 ds = get_displaystate();
3747
3748 if (display_type == DT_DEFAULT) {
3749 #if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
3750 display_type = DT_SDL;
3751 #else
3752 display_type = DT_VNC;
3753 vnc_display = "localhost:0,to=99";
3754 show_vnc_port = 1;
3755 #endif
3756 }
3757
3758
3759 switch (display_type) {
3760 case DT_NOGRAPHIC:
3761 break;
3762 #if defined(CONFIG_CURSES)
3763 case DT_CURSES:
3764 curses_display_init(ds, full_screen);
3765 break;
3766 #endif
3767 #if defined(CONFIG_SDL)
3768 case DT_SDL:
3769 sdl_display_init(ds, full_screen, no_frame);
3770 break;
3771 #elif defined(CONFIG_COCOA)
3772 case DT_SDL:
3773 cocoa_display_init(ds, full_screen);
3774 break;
3775 #endif
3776 case DT_VNC:
3777 vnc_display_init(ds);
3778 if (vnc_display_open(ds, vnc_display) < 0)
3779 exit(1);
3780
3781 if (show_vnc_port) {
3782 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
3783 }
3784 break;
3785 default:
3786 break;
3787 }
3788 dpy_resize(ds);
3789
3790 dcl = ds->listeners;
3791 while (dcl != NULL) {
3792 if (dcl->dpy_refresh != NULL) {
3793 ds->gui_timer = qemu_new_timer(rt_clock, gui_update, ds);
3794 qemu_mod_timer(ds->gui_timer, qemu_get_clock(rt_clock));
3795 }
3796 dcl = dcl->next;
3797 }
3798
3799 if (display_type == DT_NOGRAPHIC || display_type == DT_VNC) {
3800 nographic_timer = qemu_new_timer(rt_clock, nographic_update, NULL);
3801 qemu_mod_timer(nographic_timer, qemu_get_clock(rt_clock));
3802 }
3803
3804 text_consoles_set_display(ds);
3805
3806 if (gdbstub_dev && gdbserver_start(gdbstub_dev) < 0) {
3807 fprintf(stderr, "qemu: could not open gdbserver on device '%s'\n",
3808 gdbstub_dev);
3809 exit(1);
3810 }
3811
3812 qdev_machine_creation_done();
3813
3814 if (rom_load_all() != 0) {
3815 fprintf(stderr, "rom loading failed\n");
3816 exit(1);
3817 }
3818
3819 qemu_system_reset();
3820 if (loadvm) {
3821 if (load_vmstate(loadvm) < 0) {
3822 autostart = 0;
3823 }
3824 }
3825
3826 if (incoming) {
3827 qemu_start_incoming_migration(incoming);
3828 } else if (autostart) {
3829 vm_start();
3830 }
3831
3832 #ifndef _WIN32
3833 if (daemonize) {
3834 uint8_t status = 0;
3835 ssize_t len;
3836
3837 again1:
3838 len = write(fds[1], &status, 1);
3839 if (len == -1 && (errno == EINTR))
3840 goto again1;
3841
3842 if (len != 1)
3843 exit(1);
3844
3845 if (chdir("/")) {
3846 perror("not able to chdir to /");
3847 exit(1);
3848 }
3849 TFR(fd = qemu_open("/dev/null", O_RDWR));
3850 if (fd == -1)
3851 exit(1);
3852 }
3853
3854 if (run_as) {
3855 pwd = getpwnam(run_as);
3856 if (!pwd) {
3857 fprintf(stderr, "User \"%s\" doesn't exist\n", run_as);
3858 exit(1);
3859 }
3860 }
3861
3862 if (chroot_dir) {
3863 if (chroot(chroot_dir) < 0) {
3864 fprintf(stderr, "chroot failed\n");
3865 exit(1);
3866 }
3867 if (chdir("/")) {
3868 perror("not able to chdir to /");
3869 exit(1);
3870 }
3871 }
3872
3873 if (run_as) {
3874 if (setgid(pwd->pw_gid) < 0) {
3875 fprintf(stderr, "Failed to setgid(%d)\n", pwd->pw_gid);
3876 exit(1);
3877 }
3878 if (setuid(pwd->pw_uid) < 0) {
3879 fprintf(stderr, "Failed to setuid(%d)\n", pwd->pw_uid);
3880 exit(1);
3881 }
3882 if (setuid(0) != -1) {
3883 fprintf(stderr, "Dropping privileges failed\n");
3884 exit(1);
3885 }
3886 }
3887
3888 if (daemonize) {
3889 dup2(fd, 0);
3890 dup2(fd, 1);
3891 dup2(fd, 2);
3892
3893 close(fd);
3894 }
3895 #endif
3896
3897 main_loop();
3898 quit_timers();
3899 net_cleanup();
3900
3901 return 0;
3902 }
QEmu