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Fix error handling in qemu_read_config_file
[qemu.git] / vl.c
blob328395e3dda7e657a4c9306322a9aaab263c53ad
1 /*
2 * QEMU System Emulator
3 *
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24 #include <unistd.h>
25 #include <fcntl.h>
26 #include <signal.h>
27 #include <time.h>
28 #include <errno.h>
29 #include <sys/time.h>
30 #include <zlib.h>
31
32 /* Needed early for CONFIG_BSD etc. */
33 #include "config-host.h"
34
35 #ifndef _WIN32
36 #include <libgen.h>
37 #include <pwd.h>
38 #include <sys/times.h>
39 #include <sys/wait.h>
40 #include <termios.h>
41 #include <sys/mman.h>
42 #include <sys/ioctl.h>
43 #include <sys/resource.h>
44 #include <sys/socket.h>
45 #include <netinet/in.h>
46 #include <net/if.h>
47 #include <arpa/inet.h>
48 #include <dirent.h>
49 #include <netdb.h>
50 #include <sys/select.h>
51 #ifdef CONFIG_BSD
52 #include <sys/stat.h>
53 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
54 #include <libutil.h>
55 #include <sys/sysctl.h>
56 #else
57 #include <util.h>
58 #endif
59 #else
60 #ifdef __linux__
61 #include <pty.h>
62 #include <malloc.h>
63 #include <sys/prctl.h>
64
65 #include <linux/ppdev.h>
66 #include <linux/parport.h>
67 #endif
68 #ifdef __sun__
69 #include <sys/stat.h>
70 #include <sys/ethernet.h>
71 #include <sys/sockio.h>
72 #include <netinet/arp.h>
73 #include <netinet/in.h>
74 #include <netinet/in_systm.h>
75 #include <netinet/ip.h>
76 #include <netinet/ip_icmp.h> // must come after ip.h
77 #include <netinet/udp.h>
78 #include <netinet/tcp.h>
79 #include <net/if.h>
80 #include <syslog.h>
81 #include <stropts.h>
82 /* See MySQL bug #7156 (http://bugs.mysql.com/bug.php?id=7156) for
83 discussion about Solaris header problems */
84 extern int madvise(caddr_t, size_t, int);
85 #endif
86 #endif
87 #endif
88
89 #if defined(__OpenBSD__)
90 #include <util.h>
91 #endif
92
93 #if defined(CONFIG_VDE)
94 #include <libvdeplug.h>
95 #endif
96
97 #ifdef _WIN32
98 #include <windows.h>
99 #endif
100
101 #ifdef CONFIG_SDL
102 #if defined(__APPLE__) || defined(main)
103 #include <SDL.h>
104 int qemu_main(int argc, char **argv, char **envp);
105 int main(int argc, char **argv)
106 {
107 return qemu_main(argc, argv, NULL);
108 }
109 #undef main
110 #define main qemu_main
111 #endif
112 #endif /* CONFIG_SDL */
113
114 #ifdef CONFIG_COCOA
115 #undef main
116 #define main qemu_main
117 #endif /* CONFIG_COCOA */
118
119 #include "hw/hw.h"
120 #include "hw/boards.h"
121 #include "hw/usb.h"
122 #include "hw/pcmcia.h"
123 #include "hw/pc.h"
124 #include "hw/isa.h"
125 #include "hw/baum.h"
126 #include "hw/bt.h"
127 #include "hw/watchdog.h"
128 #include "hw/smbios.h"
129 #include "hw/xen.h"
130 #include "hw/qdev.h"
131 #include "hw/loader.h"
132 #include "bt-host.h"
133 #include "net.h"
134 #include "net/slirp.h"
135 #include "monitor.h"
136 #include "console.h"
137 #include "sysemu.h"
138 #include "gdbstub.h"
139 #include "qemu-timer.h"
140 #include "qemu-char.h"
141 #include "cache-utils.h"
142 #include "block.h"
143 #include "block_int.h"
144 #include "block-migration.h"
145 #include "dma.h"
146 #include "audio/audio.h"
147 #include "migration.h"
148 #include "kvm.h"
149 #include "qemu-option.h"
150 #include "qemu-config.h"
151 #include "qemu-objects.h"
152 #ifdef CONFIG_LINUX
153 #include "fsdev/qemu-fsdev.h"
154 #endif
155
156 #include "disas.h"
157
158 #include "qemu_socket.h"
159
160 #include "slirp/libslirp.h"
161
162 #include "qemu-queue.h"
163 #include "cpus.h"
164 #include "arch_init.h"
165
166 //#define DEBUG_NET
167 //#define DEBUG_SLIRP
168
169 #define DEFAULT_RAM_SIZE 128
170
171 #define MAX_VIRTIO_CONSOLES 1
172
173 static const char *data_dir;
174 const char *bios_name = NULL;
175 /* Note: drives_table[MAX_DRIVES] is a dummy block driver if none available
176 to store the VM snapshots */
177 struct drivelist drives = QTAILQ_HEAD_INITIALIZER(drives);
178 struct driveoptlist driveopts = QTAILQ_HEAD_INITIALIZER(driveopts);
179 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
180 DisplayType display_type = DT_DEFAULT;
181 const char* keyboard_layout = NULL;
182 ram_addr_t ram_size;
183 const char *mem_path = NULL;
184 #ifdef MAP_POPULATE
185 int mem_prealloc = 0; /* force preallocation of physical target memory */
186 #endif
187 int nb_nics;
188 NICInfo nd_table[MAX_NICS];
189 int vm_running;
190 int autostart;
191 static int rtc_utc = 1;
192 static int rtc_date_offset = -1; /* -1 means no change */
193 QEMUClock *rtc_clock;
194 int vga_interface_type = VGA_NONE;
195 static int full_screen = 0;
196 #ifdef CONFIG_SDL
197 static int no_frame = 0;
198 #endif
199 int no_quit = 0;
200 CharDriverState *serial_hds[MAX_SERIAL_PORTS];
201 CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
202 CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES];
203 int win2k_install_hack = 0;
204 int rtc_td_hack = 0;
205 int usb_enabled = 0;
206 int singlestep = 0;
207 int smp_cpus = 1;
208 int max_cpus = 0;
209 int smp_cores = 1;
210 int smp_threads = 1;
211 const char *vnc_display;
212 int acpi_enabled = 1;
213 int no_hpet = 0;
214 int fd_bootchk = 1;
215 int no_reboot = 0;
216 int no_shutdown = 0;
217 int cursor_hide = 1;
218 int graphic_rotate = 0;
219 uint8_t irq0override = 1;
220 #ifndef _WIN32
221 int daemonize = 0;
222 #endif
223 const char *watchdog;
224 const char *option_rom[MAX_OPTION_ROMS];
225 int nb_option_roms;
226 int semihosting_enabled = 0;
227 int old_param = 0;
228 const char *qemu_name;
229 int alt_grab = 0;
230 int ctrl_grab = 0;
231 unsigned int nb_prom_envs = 0;
232 const char *prom_envs[MAX_PROM_ENVS];
233 int boot_menu;
234
235 int nb_numa_nodes;
236 uint64_t node_mem[MAX_NODES];
237 uint64_t node_cpumask[MAX_NODES];
238
239 static QEMUTimer *nographic_timer;
240
241 uint8_t qemu_uuid[16];
242
243 static QEMUBootSetHandler *boot_set_handler;
244 static void *boot_set_opaque;
245
246 int kvm_allowed = 0;
247 uint32_t xen_domid;
248 enum xen_mode xen_mode = XEN_EMULATE;
249
250 static int default_serial = 1;
251 static int default_parallel = 1;
252 static int default_virtcon = 1;
253 static int default_monitor = 1;
254 static int default_vga = 1;
255 static int default_floppy = 1;
256 static int default_cdrom = 1;
257 static int default_sdcard = 1;
258
259 static struct {
260 const char *driver;
261 int *flag;
262 } default_list[] = {
263 { .driver = "isa-serial", .flag = &default_serial },
264 { .driver = "isa-parallel", .flag = &default_parallel },
265 { .driver = "isa-fdc", .flag = &default_floppy },
266 { .driver = "ide-drive", .flag = &default_cdrom },
267 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
268 { .driver = "virtio-serial-s390", .flag = &default_virtcon },
269 { .driver = "virtio-serial", .flag = &default_virtcon },
270 { .driver = "VGA", .flag = &default_vga },
271 { .driver = "cirrus-vga", .flag = &default_vga },
272 { .driver = "vmware-svga", .flag = &default_vga },
273 };
274
275 static int default_driver_check(QemuOpts *opts, void *opaque)
276 {
277 const char *driver = qemu_opt_get(opts, "driver");
278 int i;
279
280 if (!driver)
281 return 0;
282 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
283 if (strcmp(default_list[i].driver, driver) != 0)
284 continue;
285 *(default_list[i].flag) = 0;
286 }
287 return 0;
288 }
289
290 /***********************************************************/
291
292 static void set_proc_name(const char *s)
293 {
294 #if defined(__linux__) && defined(PR_SET_NAME)
295 char name[16];
296 if (!s)
297 return;
298 name[sizeof(name) - 1] = 0;
299 strncpy(name, s, sizeof(name));
300 /* Could rewrite argv[0] too, but that's a bit more complicated.
301 This simple way is enough for `top'. */
302 prctl(PR_SET_NAME, name);
303 #endif
304 }
305
306 /***********************************************************/
307 /* real time host monotonic timer */
308
309 /* compute with 96 bit intermediate result: (a*b)/c */
310 uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
311 {
312 union {
313 uint64_t ll;
314 struct {
315 #ifdef HOST_WORDS_BIGENDIAN
316 uint32_t high, low;
317 #else
318 uint32_t low, high;
319 #endif
320 } l;
321 } u, res;
322 uint64_t rl, rh;
323
324 u.ll = a;
325 rl = (uint64_t)u.l.low * (uint64_t)b;
326 rh = (uint64_t)u.l.high * (uint64_t)b;
327 rh += (rl >> 32);
328 res.l.high = rh / c;
329 res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
330 return res.ll;
331 }
332
333 /***********************************************************/
334 /* host time/date access */
335 void qemu_get_timedate(struct tm *tm, int offset)
336 {
337 time_t ti;
338 struct tm *ret;
339
340 time(&ti);
341 ti += offset;
342 if (rtc_date_offset == -1) {
343 if (rtc_utc)
344 ret = gmtime(&ti);
345 else
346 ret = localtime(&ti);
347 } else {
348 ti -= rtc_date_offset;
349 ret = gmtime(&ti);
350 }
351
352 memcpy(tm, ret, sizeof(struct tm));
353 }
354
355 int qemu_timedate_diff(struct tm *tm)
356 {
357 time_t seconds;
358
359 if (rtc_date_offset == -1)
360 if (rtc_utc)
361 seconds = mktimegm(tm);
362 else
363 seconds = mktime(tm);
364 else
365 seconds = mktimegm(tm) + rtc_date_offset;
366
367 return seconds - time(NULL);
368 }
369
370 void rtc_change_mon_event(struct tm *tm)
371 {
372 QObject *data;
373
374 data = qobject_from_jsonf("{ 'offset': %d }", qemu_timedate_diff(tm));
375 monitor_protocol_event(QEVENT_RTC_CHANGE, data);
376 qobject_decref(data);
377 }
378
379 static void configure_rtc_date_offset(const char *startdate, int legacy)
380 {
381 time_t rtc_start_date;
382 struct tm tm;
383
384 if (!strcmp(startdate, "now") && legacy) {
385 rtc_date_offset = -1;
386 } else {
387 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
388 &tm.tm_year,
389 &tm.tm_mon,
390 &tm.tm_mday,
391 &tm.tm_hour,
392 &tm.tm_min,
393 &tm.tm_sec) == 6) {
394 /* OK */
395 } else if (sscanf(startdate, "%d-%d-%d",
396 &tm.tm_year,
397 &tm.tm_mon,
398 &tm.tm_mday) == 3) {
399 tm.tm_hour = 0;
400 tm.tm_min = 0;
401 tm.tm_sec = 0;
402 } else {
403 goto date_fail;
404 }
405 tm.tm_year -= 1900;
406 tm.tm_mon--;
407 rtc_start_date = mktimegm(&tm);
408 if (rtc_start_date == -1) {
409 date_fail:
410 fprintf(stderr, "Invalid date format. Valid formats are:\n"
411 "'2006-06-17T16:01:21' or '2006-06-17'\n");
412 exit(1);
413 }
414 rtc_date_offset = time(NULL) - rtc_start_date;
415 }
416 }
417
418 static void configure_rtc(QemuOpts *opts)
419 {
420 const char *value;
421
422 value = qemu_opt_get(opts, "base");
423 if (value) {
424 if (!strcmp(value, "utc")) {
425 rtc_utc = 1;
426 } else if (!strcmp(value, "localtime")) {
427 rtc_utc = 0;
428 } else {
429 configure_rtc_date_offset(value, 0);
430 }
431 }
432 value = qemu_opt_get(opts, "clock");
433 if (value) {
434 if (!strcmp(value, "host")) {
435 rtc_clock = host_clock;
436 } else if (!strcmp(value, "vm")) {
437 rtc_clock = vm_clock;
438 } else {
439 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
440 exit(1);
441 }
442 }
443 value = qemu_opt_get(opts, "driftfix");
444 if (value) {
445 if (!strcmp(value, "slew")) {
446 rtc_td_hack = 1;
447 } else if (!strcmp(value, "none")) {
448 rtc_td_hack = 0;
449 } else {
450 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
451 exit(1);
452 }
453 }
454 }
455
456 /***********************************************************/
457 /* Bluetooth support */
458 static int nb_hcis;
459 static int cur_hci;
460 static struct HCIInfo *hci_table[MAX_NICS];
461
462 static struct bt_vlan_s {
463 struct bt_scatternet_s net;
464 int id;
465 struct bt_vlan_s *next;
466 } *first_bt_vlan;
467
468 /* find or alloc a new bluetooth "VLAN" */
469 static struct bt_scatternet_s *qemu_find_bt_vlan(int id)
470 {
471 struct bt_vlan_s **pvlan, *vlan;
472 for (vlan = first_bt_vlan; vlan != NULL; vlan = vlan->next) {
473 if (vlan->id == id)
474 return &vlan->net;
475 }
476 vlan = qemu_mallocz(sizeof(struct bt_vlan_s));
477 vlan->id = id;
478 pvlan = &first_bt_vlan;
479 while (*pvlan != NULL)
480 pvlan = &(*pvlan)->next;
481 *pvlan = vlan;
482 return &vlan->net;
483 }
484
485 static void null_hci_send(struct HCIInfo *hci, const uint8_t *data, int len)
486 {
487 }
488
489 static int null_hci_addr_set(struct HCIInfo *hci, const uint8_t *bd_addr)
490 {
491 return -ENOTSUP;
492 }
493
494 static struct HCIInfo null_hci = {
495 .cmd_send = null_hci_send,
496 .sco_send = null_hci_send,
497 .acl_send = null_hci_send,
498 .bdaddr_set = null_hci_addr_set,
499 };
500
501 struct HCIInfo *qemu_next_hci(void)
502 {
503 if (cur_hci == nb_hcis)
504 return &null_hci;
505
506 return hci_table[cur_hci++];
507 }
508
509 static struct HCIInfo *hci_init(const char *str)
510 {
511 char *endp;
512 struct bt_scatternet_s *vlan = 0;
513
514 if (!strcmp(str, "null"))
515 /* null */
516 return &null_hci;
517 else if (!strncmp(str, "host", 4) && (str[4] == '\0' || str[4] == ':'))
518 /* host[:hciN] */
519 return bt_host_hci(str[4] ? str + 5 : "hci0");
520 else if (!strncmp(str, "hci", 3)) {
521 /* hci[,vlan=n] */
522 if (str[3]) {
523 if (!strncmp(str + 3, ",vlan=", 6)) {
524 vlan = qemu_find_bt_vlan(strtol(str + 9, &endp, 0));
525 if (*endp)
526 vlan = 0;
527 }
528 } else
529 vlan = qemu_find_bt_vlan(0);
530 if (vlan)
531 return bt_new_hci(vlan);
532 }
533
534 fprintf(stderr, "qemu: Unknown bluetooth HCI `%s'.\n", str);
535
536 return 0;
537 }
538
539 static int bt_hci_parse(const char *str)
540 {
541 struct HCIInfo *hci;
542 bdaddr_t bdaddr;
543
544 if (nb_hcis >= MAX_NICS) {
545 fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
546 return -1;
547 }
548
549 hci = hci_init(str);
550 if (!hci)
551 return -1;
552
553 bdaddr.b[0] = 0x52;
554 bdaddr.b[1] = 0x54;
555 bdaddr.b[2] = 0x00;
556 bdaddr.b[3] = 0x12;
557 bdaddr.b[4] = 0x34;
558 bdaddr.b[5] = 0x56 + nb_hcis;
559 hci->bdaddr_set(hci, bdaddr.b);
560
561 hci_table[nb_hcis++] = hci;
562
563 return 0;
564 }
565
566 static void bt_vhci_add(int vlan_id)
567 {
568 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
569
570 if (!vlan->slave)
571 fprintf(stderr, "qemu: warning: adding a VHCI to "
572 "an empty scatternet %i\n", vlan_id);
573
574 bt_vhci_init(bt_new_hci(vlan));
575 }
576
577 static struct bt_device_s *bt_device_add(const char *opt)
578 {
579 struct bt_scatternet_s *vlan;
580 int vlan_id = 0;
581 char *endp = strstr(opt, ",vlan=");
582 int len = (endp ? endp - opt : strlen(opt)) + 1;
583 char devname[10];
584
585 pstrcpy(devname, MIN(sizeof(devname), len), opt);
586
587 if (endp) {
588 vlan_id = strtol(endp + 6, &endp, 0);
589 if (*endp) {
590 fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
591 return 0;
592 }
593 }
594
595 vlan = qemu_find_bt_vlan(vlan_id);
596
597 if (!vlan->slave)
598 fprintf(stderr, "qemu: warning: adding a slave device to "
599 "an empty scatternet %i\n", vlan_id);
600
601 if (!strcmp(devname, "keyboard"))
602 return bt_keyboard_init(vlan);
603
604 fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
605 return 0;
606 }
607
608 static int bt_parse(const char *opt)
609 {
610 const char *endp, *p;
611 int vlan;
612
613 if (strstart(opt, "hci", &endp)) {
614 if (!*endp || *endp == ',') {
615 if (*endp)
616 if (!strstart(endp, ",vlan=", 0))
617 opt = endp + 1;
618
619 return bt_hci_parse(opt);
620 }
621 } else if (strstart(opt, "vhci", &endp)) {
622 if (!*endp || *endp == ',') {
623 if (*endp) {
624 if (strstart(endp, ",vlan=", &p)) {
625 vlan = strtol(p, (char **) &endp, 0);
626 if (*endp) {
627 fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
628 return 1;
629 }
630 } else {
631 fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1);
632 return 1;
633 }
634 } else
635 vlan = 0;
636
637 bt_vhci_add(vlan);
638 return 0;
639 }
640 } else if (strstart(opt, "device:", &endp))
641 return !bt_device_add(endp);
642
643 fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
644 return 1;
645 }
646
647 /***********************************************************/
648 /* QEMU Block devices */
649
650 #define HD_ALIAS "index=%d,media=disk"
651 #define CDROM_ALIAS "index=2,media=cdrom"
652 #define FD_ALIAS "index=%d,if=floppy"
653 #define PFLASH_ALIAS "if=pflash"
654 #define MTD_ALIAS "if=mtd"
655 #define SD_ALIAS "index=0,if=sd"
656
657 QemuOpts *drive_add(const char *file, const char *fmt, ...)
658 {
659 va_list ap;
660 char optstr[1024];
661 QemuOpts *opts;
662
663 va_start(ap, fmt);
664 vsnprintf(optstr, sizeof(optstr), fmt, ap);
665 va_end(ap);
666
667 opts = qemu_opts_parse(&qemu_drive_opts, optstr, 0);
668 if (!opts) {
669 return NULL;
670 }
671 if (file)
672 qemu_opt_set(opts, "file", file);
673 return opts;
674 }
675
676 DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit)
677 {
678 DriveInfo *dinfo;
679
680 /* seek interface, bus and unit */
681
682 QTAILQ_FOREACH(dinfo, &drives, next) {
683 if (dinfo->type == type &&
684 dinfo->bus == bus &&
685 dinfo->unit == unit)
686 return dinfo;
687 }
688
689 return NULL;
690 }
691
692 DriveInfo *drive_get_by_id(const char *id)
693 {
694 DriveInfo *dinfo;
695
696 QTAILQ_FOREACH(dinfo, &drives, next) {
697 if (strcmp(id, dinfo->id))
698 continue;
699 return dinfo;
700 }
701 return NULL;
702 }
703
704 int drive_get_max_bus(BlockInterfaceType type)
705 {
706 int max_bus;
707 DriveInfo *dinfo;
708
709 max_bus = -1;
710 QTAILQ_FOREACH(dinfo, &drives, next) {
711 if(dinfo->type == type &&
712 dinfo->bus > max_bus)
713 max_bus = dinfo->bus;
714 }
715 return max_bus;
716 }
717
718 const char *drive_get_serial(BlockDriverState *bdrv)
719 {
720 DriveInfo *dinfo;
721
722 QTAILQ_FOREACH(dinfo, &drives, next) {
723 if (dinfo->bdrv == bdrv)
724 return dinfo->serial;
725 }
726
727 return "\0";
728 }
729
730 BlockInterfaceErrorAction drive_get_on_error(
731 BlockDriverState *bdrv, int is_read)
732 {
733 DriveInfo *dinfo;
734
735 QTAILQ_FOREACH(dinfo, &drives, next) {
736 if (dinfo->bdrv == bdrv)
737 return is_read ? dinfo->on_read_error : dinfo->on_write_error;
738 }
739
740 return is_read ? BLOCK_ERR_REPORT : BLOCK_ERR_STOP_ENOSPC;
741 }
742
743 static void bdrv_format_print(void *opaque, const char *name)
744 {
745 fprintf(stderr, " %s", name);
746 }
747
748 void drive_uninit(DriveInfo *dinfo)
749 {
750 qemu_opts_del(dinfo->opts);
751 bdrv_delete(dinfo->bdrv);
752 QTAILQ_REMOVE(&drives, dinfo, next);
753 qemu_free(dinfo);
754 }
755
756 static int parse_block_error_action(const char *buf, int is_read)
757 {
758 if (!strcmp(buf, "ignore")) {
759 return BLOCK_ERR_IGNORE;
760 } else if (!is_read && !strcmp(buf, "enospc")) {
761 return BLOCK_ERR_STOP_ENOSPC;
762 } else if (!strcmp(buf, "stop")) {
763 return BLOCK_ERR_STOP_ANY;
764 } else if (!strcmp(buf, "report")) {
765 return BLOCK_ERR_REPORT;
766 } else {
767 fprintf(stderr, "qemu: '%s' invalid %s error action\n",
768 buf, is_read ? "read" : "write");
769 return -1;
770 }
771 }
772
773 DriveInfo *drive_init(QemuOpts *opts, void *opaque,
774 int *fatal_error)
775 {
776 const char *buf;
777 const char *file = NULL;
778 char devname[128];
779 const char *serial;
780 const char *mediastr = "";
781 BlockInterfaceType type;
782 enum { MEDIA_DISK, MEDIA_CDROM } media;
783 int bus_id, unit_id;
784 int cyls, heads, secs, translation;
785 BlockDriver *drv = NULL;
786 QEMUMachine *machine = opaque;
787 int max_devs;
788 int index;
789 int ro = 0;
790 int bdrv_flags = 0;
791 int on_read_error, on_write_error;
792 const char *devaddr;
793 DriveInfo *dinfo;
794 int snapshot = 0;
795
796 *fatal_error = 1;
797
798 translation = BIOS_ATA_TRANSLATION_AUTO;
799
800 if (machine && machine->use_scsi) {
801 type = IF_SCSI;
802 max_devs = MAX_SCSI_DEVS;
803 pstrcpy(devname, sizeof(devname), "scsi");
804 } else {
805 type = IF_IDE;
806 max_devs = MAX_IDE_DEVS;
807 pstrcpy(devname, sizeof(devname), "ide");
808 }
809 media = MEDIA_DISK;
810
811 /* extract parameters */
812 bus_id = qemu_opt_get_number(opts, "bus", 0);
813 unit_id = qemu_opt_get_number(opts, "unit", -1);
814 index = qemu_opt_get_number(opts, "index", -1);
815
816 cyls = qemu_opt_get_number(opts, "cyls", 0);
817 heads = qemu_opt_get_number(opts, "heads", 0);
818 secs = qemu_opt_get_number(opts, "secs", 0);
819
820 snapshot = qemu_opt_get_bool(opts, "snapshot", 0);
821 ro = qemu_opt_get_bool(opts, "readonly", 0);
822
823 file = qemu_opt_get(opts, "file");
824 serial = qemu_opt_get(opts, "serial");
825
826 if ((buf = qemu_opt_get(opts, "if")) != NULL) {
827 pstrcpy(devname, sizeof(devname), buf);
828 if (!strcmp(buf, "ide")) {
829 type = IF_IDE;
830 max_devs = MAX_IDE_DEVS;
831 } else if (!strcmp(buf, "scsi")) {
832 type = IF_SCSI;
833 max_devs = MAX_SCSI_DEVS;
834 } else if (!strcmp(buf, "floppy")) {
835 type = IF_FLOPPY;
836 max_devs = 0;
837 } else if (!strcmp(buf, "pflash")) {
838 type = IF_PFLASH;
839 max_devs = 0;
840 } else if (!strcmp(buf, "mtd")) {
841 type = IF_MTD;
842 max_devs = 0;
843 } else if (!strcmp(buf, "sd")) {
844 type = IF_SD;
845 max_devs = 0;
846 } else if (!strcmp(buf, "virtio")) {
847 type = IF_VIRTIO;
848 max_devs = 0;
849 } else if (!strcmp(buf, "xen")) {
850 type = IF_XEN;
851 max_devs = 0;
852 } else if (!strcmp(buf, "none")) {
853 type = IF_NONE;
854 max_devs = 0;
855 } else {
856 fprintf(stderr, "qemu: unsupported bus type '%s'\n", buf);
857 return NULL;
858 }
859 }
860
861 if (cyls || heads || secs) {
862 if (cyls < 1 || (type == IF_IDE && cyls > 16383)) {
863 fprintf(stderr, "qemu: '%s' invalid physical cyls number\n", buf);
864 return NULL;
865 }
866 if (heads < 1 || (type == IF_IDE && heads > 16)) {
867 fprintf(stderr, "qemu: '%s' invalid physical heads number\n", buf);
868 return NULL;
869 }
870 if (secs < 1 || (type == IF_IDE && secs > 63)) {
871 fprintf(stderr, "qemu: '%s' invalid physical secs number\n", buf);
872 return NULL;
873 }
874 }
875
876 if ((buf = qemu_opt_get(opts, "trans")) != NULL) {
877 if (!cyls) {
878 fprintf(stderr,
879 "qemu: '%s' trans must be used with cyls,heads and secs\n",
880 buf);
881 return NULL;
882 }
883 if (!strcmp(buf, "none"))
884 translation = BIOS_ATA_TRANSLATION_NONE;
885 else if (!strcmp(buf, "lba"))
886 translation = BIOS_ATA_TRANSLATION_LBA;
887 else if (!strcmp(buf, "auto"))
888 translation = BIOS_ATA_TRANSLATION_AUTO;
889 else {
890 fprintf(stderr, "qemu: '%s' invalid translation type\n", buf);
891 return NULL;
892 }
893 }
894
895 if ((buf = qemu_opt_get(opts, "media")) != NULL) {
896 if (!strcmp(buf, "disk")) {
897 media = MEDIA_DISK;
898 } else if (!strcmp(buf, "cdrom")) {
899 if (cyls || secs || heads) {
900 fprintf(stderr,
901 "qemu: '%s' invalid physical CHS format\n", buf);
902 return NULL;
903 }
904 media = MEDIA_CDROM;
905 } else {
906 fprintf(stderr, "qemu: '%s' invalid media\n", buf);
907 return NULL;
908 }
909 }
910
911 if ((buf = qemu_opt_get(opts, "cache")) != NULL) {
912 if (!strcmp(buf, "off") || !strcmp(buf, "none")) {
913 bdrv_flags |= BDRV_O_NOCACHE;
914 } else if (!strcmp(buf, "writeback")) {
915 bdrv_flags |= BDRV_O_CACHE_WB;
916 } else if (!strcmp(buf, "writethrough")) {
917 /* this is the default */
918 } else {
919 fprintf(stderr, "qemu: invalid cache option\n");
920 return NULL;
921 }
922 }
923
924 #ifdef CONFIG_LINUX_AIO
925 if ((buf = qemu_opt_get(opts, "aio")) != NULL) {
926 if (!strcmp(buf, "native")) {
927 bdrv_flags |= BDRV_O_NATIVE_AIO;
928 } else if (!strcmp(buf, "threads")) {
929 /* this is the default */
930 } else {
931 fprintf(stderr, "qemu: invalid aio option\n");
932 return NULL;
933 }
934 }
935 #endif
936
937 if ((buf = qemu_opt_get(opts, "format")) != NULL) {
938 if (strcmp(buf, "?") == 0) {
939 fprintf(stderr, "qemu: Supported formats:");
940 bdrv_iterate_format(bdrv_format_print, NULL);
941 fprintf(stderr, "\n");
942 return NULL;
943 }
944 drv = bdrv_find_whitelisted_format(buf);
945 if (!drv) {
946 fprintf(stderr, "qemu: '%s' invalid format\n", buf);
947 return NULL;
948 }
949 }
950
951 on_write_error = BLOCK_ERR_STOP_ENOSPC;
952 if ((buf = qemu_opt_get(opts, "werror")) != NULL) {
953 if (type != IF_IDE && type != IF_SCSI && type != IF_VIRTIO) {
954 fprintf(stderr, "werror is no supported by this format\n");
955 return NULL;
956 }
957
958 on_write_error = parse_block_error_action(buf, 0);
959 if (on_write_error < 0) {
960 return NULL;
961 }
962 }
963
964 on_read_error = BLOCK_ERR_REPORT;
965 if ((buf = qemu_opt_get(opts, "rerror")) != NULL) {
966 if (type != IF_IDE && type != IF_VIRTIO) {
967 fprintf(stderr, "rerror is no supported by this format\n");
968 return NULL;
969 }
970
971 on_read_error = parse_block_error_action(buf, 1);
972 if (on_read_error < 0) {
973 return NULL;
974 }
975 }
976
977 if ((devaddr = qemu_opt_get(opts, "addr")) != NULL) {
978 if (type != IF_VIRTIO) {
979 fprintf(stderr, "addr is not supported\n");
980 return NULL;
981 }
982 }
983
984 /* compute bus and unit according index */
985
986 if (index != -1) {
987 if (bus_id != 0 || unit_id != -1) {
988 fprintf(stderr,
989 "qemu: index cannot be used with bus and unit\n");
990 return NULL;
991 }
992 if (max_devs == 0)
993 {
994 unit_id = index;
995 bus_id = 0;
996 } else {
997 unit_id = index % max_devs;
998 bus_id = index / max_devs;
999 }
1000 }
1001
1002 /* if user doesn't specify a unit_id,
1003 * try to find the first free
1004 */
1005
1006 if (unit_id == -1) {
1007 unit_id = 0;
1008 while (drive_get(type, bus_id, unit_id) != NULL) {
1009 unit_id++;
1010 if (max_devs && unit_id >= max_devs) {
1011 unit_id -= max_devs;
1012 bus_id++;
1013 }
1014 }
1015 }
1016
1017 /* check unit id */
1018
1019 if (max_devs && unit_id >= max_devs) {
1020 fprintf(stderr, "qemu: unit %d too big (max is %d)\n",
1021 unit_id, max_devs - 1);
1022 return NULL;
1023 }
1024
1025 /*
1026 * ignore multiple definitions
1027 */
1028
1029 if (drive_get(type, bus_id, unit_id) != NULL) {
1030 *fatal_error = 0;
1031 return NULL;
1032 }
1033
1034 /* init */
1035
1036 dinfo = qemu_mallocz(sizeof(*dinfo));
1037 if ((buf = qemu_opts_id(opts)) != NULL) {
1038 dinfo->id = qemu_strdup(buf);
1039 } else {
1040 /* no id supplied -> create one */
1041 dinfo->id = qemu_mallocz(32);
1042 if (type == IF_IDE || type == IF_SCSI)
1043 mediastr = (media == MEDIA_CDROM) ? "-cd" : "-hd";
1044 if (max_devs)
1045 snprintf(dinfo->id, 32, "%s%i%s%i",
1046 devname, bus_id, mediastr, unit_id);
1047 else
1048 snprintf(dinfo->id, 32, "%s%s%i",
1049 devname, mediastr, unit_id);
1050 }
1051 dinfo->bdrv = bdrv_new(dinfo->id);
1052 dinfo->devaddr = devaddr;
1053 dinfo->type = type;
1054 dinfo->bus = bus_id;
1055 dinfo->unit = unit_id;
1056 dinfo->on_read_error = on_read_error;
1057 dinfo->on_write_error = on_write_error;
1058 dinfo->opts = opts;
1059 if (serial)
1060 strncpy(dinfo->serial, serial, sizeof(serial));
1061 QTAILQ_INSERT_TAIL(&drives, dinfo, next);
1062
1063 switch(type) {
1064 case IF_IDE:
1065 case IF_SCSI:
1066 case IF_XEN:
1067 case IF_NONE:
1068 switch(media) {
1069 case MEDIA_DISK:
1070 if (cyls != 0) {
1071 bdrv_set_geometry_hint(dinfo->bdrv, cyls, heads, secs);
1072 bdrv_set_translation_hint(dinfo->bdrv, translation);
1073 }
1074 break;
1075 case MEDIA_CDROM:
1076 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_CDROM);
1077 break;
1078 }
1079 break;
1080 case IF_SD:
1081 /* FIXME: This isn't really a floppy, but it's a reasonable
1082 approximation. */
1083 case IF_FLOPPY:
1084 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_FLOPPY);
1085 break;
1086 case IF_PFLASH:
1087 case IF_MTD:
1088 break;
1089 case IF_VIRTIO:
1090 /* add virtio block device */
1091 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
1092 qemu_opt_set(opts, "driver", "virtio-blk-pci");
1093 qemu_opt_set(opts, "drive", dinfo->id);
1094 if (devaddr)
1095 qemu_opt_set(opts, "addr", devaddr);
1096 break;
1097 case IF_COUNT:
1098 abort();
1099 }
1100 if (!file) {
1101 *fatal_error = 0;
1102 return NULL;
1103 }
1104 if (snapshot) {
1105 /* always use write-back with snapshot */
1106 bdrv_flags &= ~BDRV_O_CACHE_MASK;
1107 bdrv_flags |= (BDRV_O_SNAPSHOT|BDRV_O_CACHE_WB);
1108 }
1109
1110 if (media == MEDIA_CDROM) {
1111 /* CDROM is fine for any interface, don't check. */
1112 ro = 1;
1113 } else if (ro == 1) {
1114 if (type != IF_SCSI && type != IF_VIRTIO && type != IF_FLOPPY) {
1115 fprintf(stderr, "qemu: readonly flag not supported for drive with this interface\n");
1116 return NULL;
1117 }
1118 }
1119
1120 bdrv_flags |= ro ? 0 : BDRV_O_RDWR;
1121
1122 if (bdrv_open(dinfo->bdrv, file, bdrv_flags, drv) < 0) {
1123 fprintf(stderr, "qemu: could not open disk image %s: %s\n",
1124 file, strerror(errno));
1125 return NULL;
1126 }
1127
1128 if (bdrv_key_required(dinfo->bdrv))
1129 autostart = 0;
1130 *fatal_error = 0;
1131 return dinfo;
1132 }
1133
1134 static int drive_init_func(QemuOpts *opts, void *opaque)
1135 {
1136 QEMUMachine *machine = opaque;
1137 int fatal_error = 0;
1138
1139 if (drive_init(opts, machine, &fatal_error) == NULL) {
1140 if (fatal_error)
1141 return 1;
1142 }
1143 return 0;
1144 }
1145
1146 static int drive_enable_snapshot(QemuOpts *opts, void *opaque)
1147 {
1148 if (NULL == qemu_opt_get(opts, "snapshot")) {
1149 qemu_opt_set(opts, "snapshot", "on");
1150 }
1151 return 0;
1152 }
1153
1154 void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
1155 {
1156 boot_set_handler = func;
1157 boot_set_opaque = opaque;
1158 }
1159
1160 int qemu_boot_set(const char *boot_devices)
1161 {
1162 if (!boot_set_handler) {
1163 return -EINVAL;
1164 }
1165 return boot_set_handler(boot_set_opaque, boot_devices);
1166 }
1167
1168 static void validate_bootdevices(char *devices)
1169 {
1170 /* We just do some generic consistency checks */
1171 const char *p;
1172 int bitmap = 0;
1173
1174 for (p = devices; *p != '\0'; p++) {
1175 /* Allowed boot devices are:
1176 * a-b: floppy disk drives
1177 * c-f: IDE disk drives
1178 * g-m: machine implementation dependant drives
1179 * n-p: network devices
1180 * It's up to each machine implementation to check if the given boot
1181 * devices match the actual hardware implementation and firmware
1182 * features.
1183 */
1184 if (*p < 'a' || *p > 'p') {
1185 fprintf(stderr, "Invalid boot device '%c'\n", *p);
1186 exit(1);
1187 }
1188 if (bitmap & (1 << (*p - 'a'))) {
1189 fprintf(stderr, "Boot device '%c' was given twice\n", *p);
1190 exit(1);
1191 }
1192 bitmap |= 1 << (*p - 'a');
1193 }
1194 }
1195
1196 static void restore_boot_devices(void *opaque)
1197 {
1198 char *standard_boot_devices = opaque;
1199 static int first = 1;
1200
1201 /* Restore boot order and remove ourselves after the first boot */
1202 if (first) {
1203 first = 0;
1204 return;
1205 }
1206
1207 qemu_boot_set(standard_boot_devices);
1208
1209 qemu_unregister_reset(restore_boot_devices, standard_boot_devices);
1210 qemu_free(standard_boot_devices);
1211 }
1212
1213 static void numa_add(const char *optarg)
1214 {
1215 char option[128];
1216 char *endptr;
1217 unsigned long long value, endvalue;
1218 int nodenr;
1219
1220 optarg = get_opt_name(option, 128, optarg, ',') + 1;
1221 if (!strcmp(option, "node")) {
1222 if (get_param_value(option, 128, "nodeid", optarg) == 0) {
1223 nodenr = nb_numa_nodes;
1224 } else {
1225 nodenr = strtoull(option, NULL, 10);
1226 }
1227
1228 if (get_param_value(option, 128, "mem", optarg) == 0) {
1229 node_mem[nodenr] = 0;
1230 } else {
1231 value = strtoull(option, &endptr, 0);
1232 switch (*endptr) {
1233 case 0: case 'M': case 'm':
1234 value <<= 20;
1235 break;
1236 case 'G': case 'g':
1237 value <<= 30;
1238 break;
1239 }
1240 node_mem[nodenr] = value;
1241 }
1242 if (get_param_value(option, 128, "cpus", optarg) == 0) {
1243 node_cpumask[nodenr] = 0;
1244 } else {
1245 value = strtoull(option, &endptr, 10);
1246 if (value >= 64) {
1247 value = 63;
1248 fprintf(stderr, "only 64 CPUs in NUMA mode supported.\n");
1249 } else {
1250 if (*endptr == '-') {
1251 endvalue = strtoull(endptr+1, &endptr, 10);
1252 if (endvalue >= 63) {
1253 endvalue = 62;
1254 fprintf(stderr,
1255 "only 63 CPUs in NUMA mode supported.\n");
1256 }
1257 value = (2ULL << endvalue) - (1ULL << value);
1258 } else {
1259 value = 1ULL << value;
1260 }
1261 }
1262 node_cpumask[nodenr] = value;
1263 }
1264 nb_numa_nodes++;
1265 }
1266 return;
1267 }
1268
1269 static void smp_parse(const char *optarg)
1270 {
1271 int smp, sockets = 0, threads = 0, cores = 0;
1272 char *endptr;
1273 char option[128];
1274
1275 smp = strtoul(optarg, &endptr, 10);
1276 if (endptr != optarg) {
1277 if (*endptr == ',') {
1278 endptr++;
1279 }
1280 }
1281 if (get_param_value(option, 128, "sockets", endptr) != 0)
1282 sockets = strtoull(option, NULL, 10);
1283 if (get_param_value(option, 128, "cores", endptr) != 0)
1284 cores = strtoull(option, NULL, 10);
1285 if (get_param_value(option, 128, "threads", endptr) != 0)
1286 threads = strtoull(option, NULL, 10);
1287 if (get_param_value(option, 128, "maxcpus", endptr) != 0)
1288 max_cpus = strtoull(option, NULL, 10);
1289
1290 /* compute missing values, prefer sockets over cores over threads */
1291 if (smp == 0 || sockets == 0) {
1292 sockets = sockets > 0 ? sockets : 1;
1293 cores = cores > 0 ? cores : 1;
1294 threads = threads > 0 ? threads : 1;
1295 if (smp == 0) {
1296 smp = cores * threads * sockets;
1297 }
1298 } else {
1299 if (cores == 0) {
1300 threads = threads > 0 ? threads : 1;
1301 cores = smp / (sockets * threads);
1302 } else {
1303 if (sockets) {
1304 threads = smp / (cores * sockets);
1305 }
1306 }
1307 }
1308 smp_cpus = smp;
1309 smp_cores = cores > 0 ? cores : 1;
1310 smp_threads = threads > 0 ? threads : 1;
1311 if (max_cpus == 0)
1312 max_cpus = smp_cpus;
1313 }
1314
1315 /***********************************************************/
1316 /* USB devices */
1317
1318 static int usb_device_add(const char *devname, int is_hotplug)
1319 {
1320 const char *p;
1321 USBDevice *dev = NULL;
1322
1323 if (!usb_enabled)
1324 return -1;
1325
1326 /* drivers with .usbdevice_name entry in USBDeviceInfo */
1327 dev = usbdevice_create(devname);
1328 if (dev)
1329 goto done;
1330
1331 /* the other ones */
1332 if (strstart(devname, "host:", &p)) {
1333 dev = usb_host_device_open(p);
1334 } else if (!strcmp(devname, "bt") || strstart(devname, "bt:", &p)) {
1335 dev = usb_bt_init(devname[2] ? hci_init(p) :
1336 bt_new_hci(qemu_find_bt_vlan(0)));
1337 } else {
1338 return -1;
1339 }
1340 if (!dev)
1341 return -1;
1342
1343 done:
1344 return 0;
1345 }
1346
1347 static int usb_device_del(const char *devname)
1348 {
1349 int bus_num, addr;
1350 const char *p;
1351
1352 if (strstart(devname, "host:", &p))
1353 return usb_host_device_close(p);
1354
1355 if (!usb_enabled)
1356 return -1;
1357
1358 p = strchr(devname, '.');
1359 if (!p)
1360 return -1;
1361 bus_num = strtoul(devname, NULL, 0);
1362 addr = strtoul(p + 1, NULL, 0);
1363
1364 return usb_device_delete_addr(bus_num, addr);
1365 }
1366
1367 static int usb_parse(const char *cmdline)
1368 {
1369 int r;
1370 r = usb_device_add(cmdline, 0);
1371 if (r < 0) {
1372 fprintf(stderr, "qemu: could not add USB device '%s'\n", cmdline);
1373 }
1374 return r;
1375 }
1376
1377 void do_usb_add(Monitor *mon, const QDict *qdict)
1378 {
1379 const char *devname = qdict_get_str(qdict, "devname");
1380 if (usb_device_add(devname, 1) < 0) {
1381 error_report("could not add USB device '%s'", devname);
1382 }
1383 }
1384
1385 void do_usb_del(Monitor *mon, const QDict *qdict)
1386 {
1387 const char *devname = qdict_get_str(qdict, "devname");
1388 if (usb_device_del(devname) < 0) {
1389 error_report("could not delete USB device '%s'", devname);
1390 }
1391 }
1392
1393 /***********************************************************/
1394 /* PCMCIA/Cardbus */
1395
1396 static struct pcmcia_socket_entry_s {
1397 PCMCIASocket *socket;
1398 struct pcmcia_socket_entry_s *next;
1399 } *pcmcia_sockets = 0;
1400
1401 void pcmcia_socket_register(PCMCIASocket *socket)
1402 {
1403 struct pcmcia_socket_entry_s *entry;
1404
1405 entry = qemu_malloc(sizeof(struct pcmcia_socket_entry_s));
1406 entry->socket = socket;
1407 entry->next = pcmcia_sockets;
1408 pcmcia_sockets = entry;
1409 }
1410
1411 void pcmcia_socket_unregister(PCMCIASocket *socket)
1412 {
1413 struct pcmcia_socket_entry_s *entry, **ptr;
1414
1415 ptr = &pcmcia_sockets;
1416 for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
1417 if (entry->socket == socket) {
1418 *ptr = entry->next;
1419 qemu_free(entry);
1420 }
1421 }
1422
1423 void pcmcia_info(Monitor *mon)
1424 {
1425 struct pcmcia_socket_entry_s *iter;
1426
1427 if (!pcmcia_sockets)
1428 monitor_printf(mon, "No PCMCIA sockets\n");
1429
1430 for (iter = pcmcia_sockets; iter; iter = iter->next)
1431 monitor_printf(mon, "%s: %s\n", iter->socket->slot_string,
1432 iter->socket->attached ? iter->socket->card_string :
1433 "Empty");
1434 }
1435
1436 /***********************************************************/
1437 /* I/O handling */
1438
1439 typedef struct IOHandlerRecord {
1440 int fd;
1441 IOCanReadHandler *fd_read_poll;
1442 IOHandler *fd_read;
1443 IOHandler *fd_write;
1444 int deleted;
1445 void *opaque;
1446 /* temporary data */
1447 struct pollfd *ufd;
1448 QLIST_ENTRY(IOHandlerRecord) next;
1449 } IOHandlerRecord;
1450
1451 static QLIST_HEAD(, IOHandlerRecord) io_handlers =
1452 QLIST_HEAD_INITIALIZER(io_handlers);
1453
1454
1455 /* XXX: fd_read_poll should be suppressed, but an API change is
1456 necessary in the character devices to suppress fd_can_read(). */
1457 int qemu_set_fd_handler2(int fd,
1458 IOCanReadHandler *fd_read_poll,
1459 IOHandler *fd_read,
1460 IOHandler *fd_write,
1461 void *opaque)
1462 {
1463 IOHandlerRecord *ioh;
1464
1465 if (!fd_read && !fd_write) {
1466 QLIST_FOREACH(ioh, &io_handlers, next) {
1467 if (ioh->fd == fd) {
1468 ioh->deleted = 1;
1469 break;
1470 }
1471 }
1472 } else {
1473 QLIST_FOREACH(ioh, &io_handlers, next) {
1474 if (ioh->fd == fd)
1475 goto found;
1476 }
1477 ioh = qemu_mallocz(sizeof(IOHandlerRecord));
1478 QLIST_INSERT_HEAD(&io_handlers, ioh, next);
1479 found:
1480 ioh->fd = fd;
1481 ioh->fd_read_poll = fd_read_poll;
1482 ioh->fd_read = fd_read;
1483 ioh->fd_write = fd_write;
1484 ioh->opaque = opaque;
1485 ioh->deleted = 0;
1486 }
1487 return 0;
1488 }
1489
1490 int qemu_set_fd_handler(int fd,
1491 IOHandler *fd_read,
1492 IOHandler *fd_write,
1493 void *opaque)
1494 {
1495 return qemu_set_fd_handler2(fd, NULL, fd_read, fd_write, opaque);
1496 }
1497
1498 #ifdef _WIN32
1499 /***********************************************************/
1500 /* Polling handling */
1501
1502 typedef struct PollingEntry {
1503 PollingFunc *func;
1504 void *opaque;
1505 struct PollingEntry *next;
1506 } PollingEntry;
1507
1508 static PollingEntry *first_polling_entry;
1509
1510 int qemu_add_polling_cb(PollingFunc *func, void *opaque)
1511 {
1512 PollingEntry **ppe, *pe;
1513 pe = qemu_mallocz(sizeof(PollingEntry));
1514 pe->func = func;
1515 pe->opaque = opaque;
1516 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next);
1517 *ppe = pe;
1518 return 0;
1519 }
1520
1521 void qemu_del_polling_cb(PollingFunc *func, void *opaque)
1522 {
1523 PollingEntry **ppe, *pe;
1524 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next) {
1525 pe = *ppe;
1526 if (pe->func == func && pe->opaque == opaque) {
1527 *ppe = pe->next;
1528 qemu_free(pe);
1529 break;
1530 }
1531 }
1532 }
1533
1534 /***********************************************************/
1535 /* Wait objects support */
1536 typedef struct WaitObjects {
1537 int num;
1538 HANDLE events[MAXIMUM_WAIT_OBJECTS + 1];
1539 WaitObjectFunc *func[MAXIMUM_WAIT_OBJECTS + 1];
1540 void *opaque[MAXIMUM_WAIT_OBJECTS + 1];
1541 } WaitObjects;
1542
1543 static WaitObjects wait_objects = {0};
1544
1545 int qemu_add_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
1546 {
1547 WaitObjects *w = &wait_objects;
1548
1549 if (w->num >= MAXIMUM_WAIT_OBJECTS)
1550 return -1;
1551 w->events[w->num] = handle;
1552 w->func[w->num] = func;
1553 w->opaque[w->num] = opaque;
1554 w->num++;
1555 return 0;
1556 }
1557
1558 void qemu_del_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
1559 {
1560 int i, found;
1561 WaitObjects *w = &wait_objects;
1562
1563 found = 0;
1564 for (i = 0; i < w->num; i++) {
1565 if (w->events[i] == handle)
1566 found = 1;
1567 if (found) {
1568 w->events[i] = w->events[i + 1];
1569 w->func[i] = w->func[i + 1];
1570 w->opaque[i] = w->opaque[i + 1];
1571 }
1572 }
1573 if (found)
1574 w->num--;
1575 }
1576 #endif
1577
1578 /***********************************************************/
1579 /* machine registration */
1580
1581 static QEMUMachine *first_machine = NULL;
1582 QEMUMachine *current_machine = NULL;
1583
1584 int qemu_register_machine(QEMUMachine *m)
1585 {
1586 QEMUMachine **pm;
1587 pm = &first_machine;
1588 while (*pm != NULL)
1589 pm = &(*pm)->next;
1590 m->next = NULL;
1591 *pm = m;
1592 return 0;
1593 }
1594
1595 static QEMUMachine *find_machine(const char *name)
1596 {
1597 QEMUMachine *m;
1598
1599 for(m = first_machine; m != NULL; m = m->next) {
1600 if (!strcmp(m->name, name))
1601 return m;
1602 if (m->alias && !strcmp(m->alias, name))
1603 return m;
1604 }
1605 return NULL;
1606 }
1607
1608 static QEMUMachine *find_default_machine(void)
1609 {
1610 QEMUMachine *m;
1611
1612 for(m = first_machine; m != NULL; m = m->next) {
1613 if (m->is_default) {
1614 return m;
1615 }
1616 }
1617 return NULL;
1618 }
1619
1620 /***********************************************************/
1621 /* main execution loop */
1622
1623 static void gui_update(void *opaque)
1624 {
1625 uint64_t interval = GUI_REFRESH_INTERVAL;
1626 DisplayState *ds = opaque;
1627 DisplayChangeListener *dcl = ds->listeners;
1628
1629 qemu_flush_coalesced_mmio_buffer();
1630 dpy_refresh(ds);
1631
1632 while (dcl != NULL) {
1633 if (dcl->gui_timer_interval &&
1634 dcl->gui_timer_interval < interval)
1635 interval = dcl->gui_timer_interval;
1636 dcl = dcl->next;
1637 }
1638 qemu_mod_timer(ds->gui_timer, interval + qemu_get_clock(rt_clock));
1639 }
1640
1641 static void nographic_update(void *opaque)
1642 {
1643 uint64_t interval = GUI_REFRESH_INTERVAL;
1644
1645 qemu_flush_coalesced_mmio_buffer();
1646 qemu_mod_timer(nographic_timer, interval + qemu_get_clock(rt_clock));
1647 }
1648
1649 struct vm_change_state_entry {
1650 VMChangeStateHandler *cb;
1651 void *opaque;
1652 QLIST_ENTRY (vm_change_state_entry) entries;
1653 };
1654
1655 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1656
1657 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1658 void *opaque)
1659 {
1660 VMChangeStateEntry *e;
1661
1662 e = qemu_mallocz(sizeof (*e));
1663
1664 e->cb = cb;
1665 e->opaque = opaque;
1666 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1667 return e;
1668 }
1669
1670 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1671 {
1672 QLIST_REMOVE (e, entries);
1673 qemu_free (e);
1674 }
1675
1676 void vm_state_notify(int running, int reason)
1677 {
1678 VMChangeStateEntry *e;
1679
1680 for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
1681 e->cb(e->opaque, running, reason);
1682 }
1683 }
1684
1685 void vm_start(void)
1686 {
1687 if (!vm_running) {
1688 cpu_enable_ticks();
1689 vm_running = 1;
1690 vm_state_notify(1, 0);
1691 resume_all_vcpus();
1692 monitor_protocol_event(QEVENT_RESUME, NULL);
1693 }
1694 }
1695
1696 /* reset/shutdown handler */
1697
1698 typedef struct QEMUResetEntry {
1699 QTAILQ_ENTRY(QEMUResetEntry) entry;
1700 QEMUResetHandler *func;
1701 void *opaque;
1702 } QEMUResetEntry;
1703
1704 static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
1705 QTAILQ_HEAD_INITIALIZER(reset_handlers);
1706 static int reset_requested;
1707 static int shutdown_requested;
1708 static int powerdown_requested;
1709 int debug_requested;
1710 int vmstop_requested;
1711
1712 int qemu_shutdown_requested(void)
1713 {
1714 int r = shutdown_requested;
1715 shutdown_requested = 0;
1716 return r;
1717 }
1718
1719 int qemu_reset_requested(void)
1720 {
1721 int r = reset_requested;
1722 reset_requested = 0;
1723 return r;
1724 }
1725
1726 int qemu_powerdown_requested(void)
1727 {
1728 int r = powerdown_requested;
1729 powerdown_requested = 0;
1730 return r;
1731 }
1732
1733 static int qemu_debug_requested(void)
1734 {
1735 int r = debug_requested;
1736 debug_requested = 0;
1737 return r;
1738 }
1739
1740 static int qemu_vmstop_requested(void)
1741 {
1742 int r = vmstop_requested;
1743 vmstop_requested = 0;
1744 return r;
1745 }
1746
1747 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
1748 {
1749 QEMUResetEntry *re = qemu_mallocz(sizeof(QEMUResetEntry));
1750
1751 re->func = func;
1752 re->opaque = opaque;
1753 QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
1754 }
1755
1756 void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
1757 {
1758 QEMUResetEntry *re;
1759
1760 QTAILQ_FOREACH(re, &reset_handlers, entry) {
1761 if (re->func == func && re->opaque == opaque) {
1762 QTAILQ_REMOVE(&reset_handlers, re, entry);
1763 qemu_free(re);
1764 return;
1765 }
1766 }
1767 }
1768
1769 void qemu_system_reset(void)
1770 {
1771 QEMUResetEntry *re, *nre;
1772
1773 /* reset all devices */
1774 QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
1775 re->func(re->opaque);
1776 }
1777 monitor_protocol_event(QEVENT_RESET, NULL);
1778 cpu_synchronize_all_post_reset();
1779 }
1780
1781 void qemu_system_reset_request(void)
1782 {
1783 if (no_reboot) {
1784 shutdown_requested = 1;
1785 } else {
1786 reset_requested = 1;
1787 }
1788 qemu_notify_event();
1789 }
1790
1791 void qemu_system_shutdown_request(void)
1792 {
1793 shutdown_requested = 1;
1794 qemu_notify_event();
1795 }
1796
1797 void qemu_system_powerdown_request(void)
1798 {
1799 powerdown_requested = 1;
1800 qemu_notify_event();
1801 }
1802
1803 #ifdef _WIN32
1804 static void host_main_loop_wait(int *timeout)
1805 {
1806 int ret, ret2, i;
1807 PollingEntry *pe;
1808
1809
1810 /* XXX: need to suppress polling by better using win32 events */
1811 ret = 0;
1812 for(pe = first_polling_entry; pe != NULL; pe = pe->next) {
1813 ret |= pe->func(pe->opaque);
1814 }
1815 if (ret == 0) {
1816 int err;
1817 WaitObjects *w = &wait_objects;
1818
1819 ret = WaitForMultipleObjects(w->num, w->events, FALSE, *timeout);
1820 if (WAIT_OBJECT_0 + 0 <= ret && ret <= WAIT_OBJECT_0 + w->num - 1) {
1821 if (w->func[ret - WAIT_OBJECT_0])
1822 w->func[ret - WAIT_OBJECT_0](w->opaque[ret - WAIT_OBJECT_0]);
1823
1824 /* Check for additional signaled events */
1825 for(i = (ret - WAIT_OBJECT_0 + 1); i < w->num; i++) {
1826
1827 /* Check if event is signaled */
1828 ret2 = WaitForSingleObject(w->events[i], 0);
1829 if(ret2 == WAIT_OBJECT_0) {
1830 if (w->func[i])
1831 w->func[i](w->opaque[i]);
1832 } else if (ret2 == WAIT_TIMEOUT) {
1833 } else {
1834 err = GetLastError();
1835 fprintf(stderr, "WaitForSingleObject error %d %d\n", i, err);
1836 }
1837 }
1838 } else if (ret == WAIT_TIMEOUT) {
1839 } else {
1840 err = GetLastError();
1841 fprintf(stderr, "WaitForMultipleObjects error %d %d\n", ret, err);
1842 }
1843 }
1844
1845 *timeout = 0;
1846 }
1847 #else
1848 static void host_main_loop_wait(int *timeout)
1849 {
1850 }
1851 #endif
1852
1853 void main_loop_wait(int nonblocking)
1854 {
1855 IOHandlerRecord *ioh;
1856 fd_set rfds, wfds, xfds;
1857 int ret, nfds;
1858 struct timeval tv;
1859 int timeout;
1860
1861 if (nonblocking)
1862 timeout = 0;
1863 else {
1864 timeout = qemu_calculate_timeout();
1865 qemu_bh_update_timeout(&timeout);
1866 }
1867
1868 host_main_loop_wait(&timeout);
1869
1870 /* poll any events */
1871 /* XXX: separate device handlers from system ones */
1872 nfds = -1;
1873 FD_ZERO(&rfds);
1874 FD_ZERO(&wfds);
1875 FD_ZERO(&xfds);
1876 QLIST_FOREACH(ioh, &io_handlers, next) {
1877 if (ioh->deleted)
1878 continue;
1879 if (ioh->fd_read &&
1880 (!ioh->fd_read_poll ||
1881 ioh->fd_read_poll(ioh->opaque) != 0)) {
1882 FD_SET(ioh->fd, &rfds);
1883 if (ioh->fd > nfds)
1884 nfds = ioh->fd;
1885 }
1886 if (ioh->fd_write) {
1887 FD_SET(ioh->fd, &wfds);
1888 if (ioh->fd > nfds)
1889 nfds = ioh->fd;
1890 }
1891 }
1892
1893 tv.tv_sec = timeout / 1000;
1894 tv.tv_usec = (timeout % 1000) * 1000;
1895
1896 slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
1897
1898 qemu_mutex_unlock_iothread();
1899 ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
1900 qemu_mutex_lock_iothread();
1901 if (ret > 0) {
1902 IOHandlerRecord *pioh;
1903
1904 QLIST_FOREACH_SAFE(ioh, &io_handlers, next, pioh) {
1905 if (ioh->deleted) {
1906 QLIST_REMOVE(ioh, next);
1907 qemu_free(ioh);
1908 continue;
1909 }
1910 if (ioh->fd_read && FD_ISSET(ioh->fd, &rfds)) {
1911 ioh->fd_read(ioh->opaque);
1912 }
1913 if (ioh->fd_write && FD_ISSET(ioh->fd, &wfds)) {
1914 ioh->fd_write(ioh->opaque);
1915 }
1916 }
1917 }
1918
1919 slirp_select_poll(&rfds, &wfds, &xfds, (ret < 0));
1920
1921 qemu_run_all_timers();
1922
1923 /* Check bottom-halves last in case any of the earlier events triggered
1924 them. */
1925 qemu_bh_poll();
1926
1927 }
1928
1929 static int vm_can_run(void)
1930 {
1931 if (powerdown_requested)
1932 return 0;
1933 if (reset_requested)
1934 return 0;
1935 if (shutdown_requested)
1936 return 0;
1937 if (debug_requested)
1938 return 0;
1939 return 1;
1940 }
1941
1942 qemu_irq qemu_system_powerdown;
1943
1944 static void main_loop(void)
1945 {
1946 int r;
1947
1948 qemu_main_loop_start();
1949
1950 for (;;) {
1951 do {
1952 bool nonblocking = false;
1953 #ifdef CONFIG_PROFILER
1954 int64_t ti;
1955 #endif
1956 #ifndef CONFIG_IOTHREAD
1957 nonblocking = tcg_cpu_exec();
1958 #endif
1959 #ifdef CONFIG_PROFILER
1960 ti = profile_getclock();
1961 #endif
1962 main_loop_wait(nonblocking);
1963 #ifdef CONFIG_PROFILER
1964 dev_time += profile_getclock() - ti;
1965 #endif
1966 } while (vm_can_run());
1967
1968 if ((r = qemu_debug_requested())) {
1969 vm_stop(r);
1970 }
1971 if (qemu_shutdown_requested()) {
1972 monitor_protocol_event(QEVENT_SHUTDOWN, NULL);
1973 if (no_shutdown) {
1974 vm_stop(0);
1975 no_shutdown = 0;
1976 } else
1977 break;
1978 }
1979 if (qemu_reset_requested()) {
1980 pause_all_vcpus();
1981 qemu_system_reset();
1982 resume_all_vcpus();
1983 }
1984 if (qemu_powerdown_requested()) {
1985 monitor_protocol_event(QEVENT_POWERDOWN, NULL);
1986 qemu_irq_raise(qemu_system_powerdown);
1987 }
1988 if ((r = qemu_vmstop_requested())) {
1989 vm_stop(r);
1990 }
1991 }
1992 pause_all_vcpus();
1993 }
1994
1995 static void version(void)
1996 {
1997 printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
1998 }
1999
2000 static void help(int exitcode)
2001 {
2002 const char *options_help =
2003 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
2004 opt_help
2005 #define DEFHEADING(text) stringify(text) "\n"
2006 #include "qemu-options.h"
2007 #undef DEF
2008 #undef DEFHEADING
2009 #undef GEN_DOCS
2010 ;
2011 version();
2012 printf("usage: %s [options] [disk_image]\n"
2013 "\n"
2014 "'disk_image' is a raw hard disk image for IDE hard disk 0\n"
2015 "\n"
2016 "%s\n"
2017 "During emulation, the following keys are useful:\n"
2018 "ctrl-alt-f toggle full screen\n"
2019 "ctrl-alt-n switch to virtual console 'n'\n"
2020 "ctrl-alt toggle mouse and keyboard grab\n"
2021 "\n"
2022 "When using -nographic, press 'ctrl-a h' to get some help.\n",
2023 "qemu",
2024 options_help);
2025 exit(exitcode);
2026 }
2027
2028 #define HAS_ARG 0x0001
2029
2030 enum {
2031 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
2032 opt_enum,
2033 #define DEFHEADING(text)
2034 #include "qemu-options.h"
2035 #undef DEF
2036 #undef DEFHEADING
2037 #undef GEN_DOCS
2038 };
2039
2040 typedef struct QEMUOption {
2041 const char *name;
2042 int flags;
2043 int index;
2044 uint32_t arch_mask;
2045 } QEMUOption;
2046
2047 static const QEMUOption qemu_options[] = {
2048 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
2049 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
2050 { option, opt_arg, opt_enum, arch_mask },
2051 #define DEFHEADING(text)
2052 #include "qemu-options.h"
2053 #undef DEF
2054 #undef DEFHEADING
2055 #undef GEN_DOCS
2056 { NULL },
2057 };
2058 static void select_vgahw (const char *p)
2059 {
2060 const char *opts;
2061
2062 default_vga = 0;
2063 vga_interface_type = VGA_NONE;
2064 if (strstart(p, "std", &opts)) {
2065 vga_interface_type = VGA_STD;
2066 } else if (strstart(p, "cirrus", &opts)) {
2067 vga_interface_type = VGA_CIRRUS;
2068 } else if (strstart(p, "vmware", &opts)) {
2069 vga_interface_type = VGA_VMWARE;
2070 } else if (strstart(p, "xenfb", &opts)) {
2071 vga_interface_type = VGA_XENFB;
2072 } else if (!strstart(p, "none", &opts)) {
2073 invalid_vga:
2074 fprintf(stderr, "Unknown vga type: %s\n", p);
2075 exit(1);
2076 }
2077 while (*opts) {
2078 const char *nextopt;
2079
2080 if (strstart(opts, ",retrace=", &nextopt)) {
2081 opts = nextopt;
2082 if (strstart(opts, "dumb", &nextopt))
2083 vga_retrace_method = VGA_RETRACE_DUMB;
2084 else if (strstart(opts, "precise", &nextopt))
2085 vga_retrace_method = VGA_RETRACE_PRECISE;
2086 else goto invalid_vga;
2087 } else goto invalid_vga;
2088 opts = nextopt;
2089 }
2090 }
2091
2092 static int balloon_parse(const char *arg)
2093 {
2094 QemuOpts *opts;
2095
2096 if (strcmp(arg, "none") == 0) {
2097 return 0;
2098 }
2099
2100 if (!strncmp(arg, "virtio", 6)) {
2101 if (arg[6] == ',') {
2102 /* have params -> parse them */
2103 opts = qemu_opts_parse(&qemu_device_opts, arg+7, 0);
2104 if (!opts)
2105 return -1;
2106 } else {
2107 /* create empty opts */
2108 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2109 }
2110 qemu_opt_set(opts, "driver", "virtio-balloon-pci");
2111 return 0;
2112 }
2113
2114 return -1;
2115 }
2116
2117 #ifdef _WIN32
2118 static BOOL WINAPI qemu_ctrl_handler(DWORD type)
2119 {
2120 exit(STATUS_CONTROL_C_EXIT);
2121 return TRUE;
2122 }
2123 #endif
2124
2125 #ifndef _WIN32
2126
2127 static void termsig_handler(int signal)
2128 {
2129 qemu_system_shutdown_request();
2130 }
2131
2132 static void sigchld_handler(int signal)
2133 {
2134 waitpid(-1, NULL, WNOHANG);
2135 }
2136
2137 static void sighandler_setup(void)
2138 {
2139 struct sigaction act;
2140
2141 memset(&act, 0, sizeof(act));
2142 act.sa_handler = termsig_handler;
2143 sigaction(SIGINT, &act, NULL);
2144 sigaction(SIGHUP, &act, NULL);
2145 sigaction(SIGTERM, &act, NULL);
2146
2147 act.sa_handler = sigchld_handler;
2148 act.sa_flags = SA_NOCLDSTOP;
2149 sigaction(SIGCHLD, &act, NULL);
2150 }
2151
2152 #endif
2153
2154 #ifdef _WIN32
2155 /* Look for support files in the same directory as the executable. */
2156 static char *find_datadir(const char *argv0)
2157 {
2158 char *p;
2159 char buf[MAX_PATH];
2160 DWORD len;
2161
2162 len = GetModuleFileName(NULL, buf, sizeof(buf) - 1);
2163 if (len == 0) {
2164 return NULL;
2165 }
2166
2167 buf[len] = 0;
2168 p = buf + len - 1;
2169 while (p != buf && *p != '\\')
2170 p--;
2171 *p = 0;
2172 if (access(buf, R_OK) == 0) {
2173 return qemu_strdup(buf);
2174 }
2175 return NULL;
2176 }
2177 #else /* !_WIN32 */
2178
2179 /* Find a likely location for support files using the location of the binary.
2180 For installed binaries this will be "$bindir/../share/qemu". When
2181 running from the build tree this will be "$bindir/../pc-bios". */
2182 #define SHARE_SUFFIX "/share/qemu"
2183 #define BUILD_SUFFIX "/pc-bios"
2184 static char *find_datadir(const char *argv0)
2185 {
2186 char *dir;
2187 char *p = NULL;
2188 char *res;
2189 char buf[PATH_MAX];
2190 size_t max_len;
2191
2192 #if defined(__linux__)
2193 {
2194 int len;
2195 len = readlink("/proc/self/exe", buf, sizeof(buf) - 1);
2196 if (len > 0) {
2197 buf[len] = 0;
2198 p = buf;
2199 }
2200 }
2201 #elif defined(__FreeBSD__)
2202 {
2203 static int mib[4] = {CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, -1};
2204 size_t len = sizeof(buf) - 1;
2205
2206 *buf = '\0';
2207 if (!sysctl(mib, sizeof(mib)/sizeof(*mib), buf, &len, NULL, 0) &&
2208 *buf) {
2209 buf[sizeof(buf) - 1] = '\0';
2210 p = buf;
2211 }
2212 }
2213 #endif
2214 /* If we don't have any way of figuring out the actual executable
2215 location then try argv[0]. */
2216 if (!p) {
2217 p = realpath(argv0, buf);
2218 if (!p) {
2219 return NULL;
2220 }
2221 }
2222 dir = dirname(p);
2223 dir = dirname(dir);
2224
2225 max_len = strlen(dir) +
2226 MAX(strlen(SHARE_SUFFIX), strlen(BUILD_SUFFIX)) + 1;
2227 res = qemu_mallocz(max_len);
2228 snprintf(res, max_len, "%s%s", dir, SHARE_SUFFIX);
2229 if (access(res, R_OK)) {
2230 snprintf(res, max_len, "%s%s", dir, BUILD_SUFFIX);
2231 if (access(res, R_OK)) {
2232 qemu_free(res);
2233 res = NULL;
2234 }
2235 }
2236
2237 return res;
2238 }
2239 #undef SHARE_SUFFIX
2240 #undef BUILD_SUFFIX
2241 #endif
2242
2243 char *qemu_find_file(int type, const char *name)
2244 {
2245 int len;
2246 const char *subdir;
2247 char *buf;
2248
2249 /* If name contains path separators then try it as a straight path. */
2250 if ((strchr(name, '/') || strchr(name, '\\'))
2251 && access(name, R_OK) == 0) {
2252 return qemu_strdup(name);
2253 }
2254 switch (type) {
2255 case QEMU_FILE_TYPE_BIOS:
2256 subdir = "";
2257 break;
2258 case QEMU_FILE_TYPE_KEYMAP:
2259 subdir = "keymaps/";
2260 break;
2261 default:
2262 abort();
2263 }
2264 len = strlen(data_dir) + strlen(name) + strlen(subdir) + 2;
2265 buf = qemu_mallocz(len);
2266 snprintf(buf, len, "%s/%s%s", data_dir, subdir, name);
2267 if (access(buf, R_OK)) {
2268 qemu_free(buf);
2269 return NULL;
2270 }
2271 return buf;
2272 }
2273
2274 static int device_help_func(QemuOpts *opts, void *opaque)
2275 {
2276 return qdev_device_help(opts);
2277 }
2278
2279 static int device_init_func(QemuOpts *opts, void *opaque)
2280 {
2281 DeviceState *dev;
2282
2283 dev = qdev_device_add(opts);
2284 if (!dev)
2285 return -1;
2286 return 0;
2287 }
2288
2289 static int chardev_init_func(QemuOpts *opts, void *opaque)
2290 {
2291 CharDriverState *chr;
2292
2293 chr = qemu_chr_open_opts(opts, NULL);
2294 if (!chr)
2295 return -1;
2296 return 0;
2297 }
2298
2299 #ifdef CONFIG_LINUX
2300 static int fsdev_init_func(QemuOpts *opts, void *opaque)
2301 {
2302 int ret;
2303 ret = qemu_fsdev_add(opts);
2304
2305 return ret;
2306 }
2307 #endif
2308
2309 static int mon_init_func(QemuOpts *opts, void *opaque)
2310 {
2311 CharDriverState *chr;
2312 const char *chardev;
2313 const char *mode;
2314 int flags;
2315
2316 mode = qemu_opt_get(opts, "mode");
2317 if (mode == NULL) {
2318 mode = "readline";
2319 }
2320 if (strcmp(mode, "readline") == 0) {
2321 flags = MONITOR_USE_READLINE;
2322 } else if (strcmp(mode, "control") == 0) {
2323 flags = MONITOR_USE_CONTROL;
2324 } else {
2325 fprintf(stderr, "unknown monitor mode \"%s\"\n", mode);
2326 exit(1);
2327 }
2328
2329 if (qemu_opt_get_bool(opts, "default", 0))
2330 flags |= MONITOR_IS_DEFAULT;
2331
2332 chardev = qemu_opt_get(opts, "chardev");
2333 chr = qemu_chr_find(chardev);
2334 if (chr == NULL) {
2335 fprintf(stderr, "chardev \"%s\" not found\n", chardev);
2336 exit(1);
2337 }
2338
2339 monitor_init(chr, flags);
2340 return 0;
2341 }
2342
2343 static void monitor_parse(const char *optarg, const char *mode)
2344 {
2345 static int monitor_device_index = 0;
2346 QemuOpts *opts;
2347 const char *p;
2348 char label[32];
2349 int def = 0;
2350
2351 if (strstart(optarg, "chardev:", &p)) {
2352 snprintf(label, sizeof(label), "%s", p);
2353 } else {
2354 snprintf(label, sizeof(label), "compat_monitor%d",
2355 monitor_device_index);
2356 if (monitor_device_index == 0) {
2357 def = 1;
2358 }
2359 opts = qemu_chr_parse_compat(label, optarg);
2360 if (!opts) {
2361 fprintf(stderr, "parse error: %s\n", optarg);
2362 exit(1);
2363 }
2364 }
2365
2366 opts = qemu_opts_create(&qemu_mon_opts, label, 1);
2367 if (!opts) {
2368 fprintf(stderr, "duplicate chardev: %s\n", label);
2369 exit(1);
2370 }
2371 qemu_opt_set(opts, "mode", mode);
2372 qemu_opt_set(opts, "chardev", label);
2373 if (def)
2374 qemu_opt_set(opts, "default", "on");
2375 monitor_device_index++;
2376 }
2377
2378 struct device_config {
2379 enum {
2380 DEV_USB, /* -usbdevice */
2381 DEV_BT, /* -bt */
2382 DEV_SERIAL, /* -serial */
2383 DEV_PARALLEL, /* -parallel */
2384 DEV_VIRTCON, /* -virtioconsole */
2385 DEV_DEBUGCON, /* -debugcon */
2386 } type;
2387 const char *cmdline;
2388 QTAILQ_ENTRY(device_config) next;
2389 };
2390 QTAILQ_HEAD(, device_config) device_configs = QTAILQ_HEAD_INITIALIZER(device_configs);
2391
2392 static void add_device_config(int type, const char *cmdline)
2393 {
2394 struct device_config *conf;
2395
2396 conf = qemu_mallocz(sizeof(*conf));
2397 conf->type = type;
2398 conf->cmdline = cmdline;
2399 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2400 }
2401
2402 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2403 {
2404 struct device_config *conf;
2405 int rc;
2406
2407 QTAILQ_FOREACH(conf, &device_configs, next) {
2408 if (conf->type != type)
2409 continue;
2410 rc = func(conf->cmdline);
2411 if (0 != rc)
2412 return rc;
2413 }
2414 return 0;
2415 }
2416
2417 static int serial_parse(const char *devname)
2418 {
2419 static int index = 0;
2420 char label[32];
2421
2422 if (strcmp(devname, "none") == 0)
2423 return 0;
2424 if (index == MAX_SERIAL_PORTS) {
2425 fprintf(stderr, "qemu: too many serial ports\n");
2426 exit(1);
2427 }
2428 snprintf(label, sizeof(label), "serial%d", index);
2429 serial_hds[index] = qemu_chr_open(label, devname, NULL);
2430 if (!serial_hds[index]) {
2431 fprintf(stderr, "qemu: could not open serial device '%s': %s\n",
2432 devname, strerror(errno));
2433 return -1;
2434 }
2435 index++;
2436 return 0;
2437 }
2438
2439 static int parallel_parse(const char *devname)
2440 {
2441 static int index = 0;
2442 char label[32];
2443
2444 if (strcmp(devname, "none") == 0)
2445 return 0;
2446 if (index == MAX_PARALLEL_PORTS) {
2447 fprintf(stderr, "qemu: too many parallel ports\n");
2448 exit(1);
2449 }
2450 snprintf(label, sizeof(label), "parallel%d", index);
2451 parallel_hds[index] = qemu_chr_open(label, devname, NULL);
2452 if (!parallel_hds[index]) {
2453 fprintf(stderr, "qemu: could not open parallel device '%s': %s\n",
2454 devname, strerror(errno));
2455 return -1;
2456 }
2457 index++;
2458 return 0;
2459 }
2460
2461 static int virtcon_parse(const char *devname)
2462 {
2463 static int index = 0;
2464 char label[32];
2465 QemuOpts *bus_opts, *dev_opts;
2466
2467 if (strcmp(devname, "none") == 0)
2468 return 0;
2469 if (index == MAX_VIRTIO_CONSOLES) {
2470 fprintf(stderr, "qemu: too many virtio consoles\n");
2471 exit(1);
2472 }
2473
2474 bus_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2475 qemu_opt_set(bus_opts, "driver", "virtio-serial");
2476
2477 dev_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2478 qemu_opt_set(dev_opts, "driver", "virtconsole");
2479
2480 snprintf(label, sizeof(label), "virtcon%d", index);
2481 virtcon_hds[index] = qemu_chr_open(label, devname, NULL);
2482 if (!virtcon_hds[index]) {
2483 fprintf(stderr, "qemu: could not open virtio console '%s': %s\n",
2484 devname, strerror(errno));
2485 return -1;
2486 }
2487 qemu_opt_set(dev_opts, "chardev", label);
2488
2489 index++;
2490 return 0;
2491 }
2492
2493 static int debugcon_parse(const char *devname)
2494 {
2495 QemuOpts *opts;
2496
2497 if (!qemu_chr_open("debugcon", devname, NULL)) {
2498 exit(1);
2499 }
2500 opts = qemu_opts_create(&qemu_device_opts, "debugcon", 1);
2501 if (!opts) {
2502 fprintf(stderr, "qemu: already have a debugcon device\n");
2503 exit(1);
2504 }
2505 qemu_opt_set(opts, "driver", "isa-debugcon");
2506 qemu_opt_set(opts, "chardev", "debugcon");
2507 return 0;
2508 }
2509
2510 static const QEMUOption *lookup_opt(int argc, char **argv,
2511 const char **poptarg, int *poptind)
2512 {
2513 const QEMUOption *popt;
2514 int optind = *poptind;
2515 char *r = argv[optind];
2516 const char *optarg;
2517
2518 loc_set_cmdline(argv, optind, 1);
2519 optind++;
2520 /* Treat --foo the same as -foo. */
2521 if (r[1] == '-')
2522 r++;
2523 popt = qemu_options;
2524 for(;;) {
2525 if (!popt->name) {
2526 error_report("invalid option");
2527 exit(1);
2528 }
2529 if (!strcmp(popt->name, r + 1))
2530 break;
2531 popt++;
2532 }
2533 if (popt->flags & HAS_ARG) {
2534 if (optind >= argc) {
2535 error_report("requires an argument");
2536 exit(1);
2537 }
2538 optarg = argv[optind++];
2539 loc_set_cmdline(argv, optind - 2, 2);
2540 } else {
2541 optarg = NULL;
2542 }
2543
2544 *poptarg = optarg;
2545 *poptind = optind;
2546
2547 return popt;
2548 }
2549
2550 int main(int argc, char **argv, char **envp)
2551 {
2552 const char *gdbstub_dev = NULL;
2553 int i;
2554 int snapshot, linux_boot;
2555 const char *icount_option = NULL;
2556 const char *initrd_filename;
2557 const char *kernel_filename, *kernel_cmdline;
2558 char boot_devices[33] = "cad"; /* default to HD->floppy->CD-ROM */
2559 DisplayState *ds;
2560 DisplayChangeListener *dcl;
2561 int cyls, heads, secs, translation;
2562 QemuOpts *hda_opts = NULL, *opts;
2563 int optind;
2564 const char *optarg;
2565 const char *loadvm = NULL;
2566 QEMUMachine *machine;
2567 const char *cpu_model;
2568 #ifndef _WIN32
2569 int fds[2];
2570 #endif
2571 int tb_size;
2572 const char *pid_file = NULL;
2573 const char *incoming = NULL;
2574 #ifndef _WIN32
2575 int fd = 0;
2576 struct passwd *pwd = NULL;
2577 const char *chroot_dir = NULL;
2578 const char *run_as = NULL;
2579 #endif
2580 int show_vnc_port = 0;
2581 int defconfig = 1;
2582
2583 error_set_progname(argv[0]);
2584
2585 init_clocks();
2586
2587 qemu_cache_utils_init(envp);
2588
2589 QLIST_INIT (&vm_change_state_head);
2590 #ifndef _WIN32
2591 {
2592 struct sigaction act;
2593 sigfillset(&act.sa_mask);
2594 act.sa_flags = 0;
2595 act.sa_handler = SIG_IGN;
2596 sigaction(SIGPIPE, &act, NULL);
2597 }
2598 #else
2599 SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE);
2600 /* Note: cpu_interrupt() is currently not SMP safe, so we force
2601 QEMU to run on a single CPU */
2602 {
2603 HANDLE h;
2604 DWORD mask, smask;
2605 int i;
2606 h = GetCurrentProcess();
2607 if (GetProcessAffinityMask(h, &mask, &smask)) {
2608 for(i = 0; i < 32; i++) {
2609 if (mask & (1 << i))
2610 break;
2611 }
2612 if (i != 32) {
2613 mask = 1 << i;
2614 SetProcessAffinityMask(h, mask);
2615 }
2616 }
2617 }
2618 #endif
2619
2620 module_call_init(MODULE_INIT_MACHINE);
2621 machine = find_default_machine();
2622 cpu_model = NULL;
2623 initrd_filename = NULL;
2624 ram_size = 0;
2625 snapshot = 0;
2626 kernel_filename = NULL;
2627 kernel_cmdline = "";
2628 cyls = heads = secs = 0;
2629 translation = BIOS_ATA_TRANSLATION_AUTO;
2630
2631 for (i = 0; i < MAX_NODES; i++) {
2632 node_mem[i] = 0;
2633 node_cpumask[i] = 0;
2634 }
2635
2636 nb_numa_nodes = 0;
2637 nb_nics = 0;
2638
2639 tb_size = 0;
2640 autostart= 1;
2641
2642 /* first pass of option parsing */
2643 optind = 1;
2644 while (optind < argc) {
2645 if (argv[optind][0] != '-') {
2646 /* disk image */
2647 optind++;
2648 continue;
2649 } else {
2650 const QEMUOption *popt;
2651
2652 popt = lookup_opt(argc, argv, &optarg, &optind);
2653 switch (popt->index) {
2654 case QEMU_OPTION_nodefconfig:
2655 defconfig=0;
2656 break;
2657 }
2658 }
2659 }
2660
2661 if (defconfig) {
2662 int ret;
2663
2664 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2665 if (ret < 0 && ret != -ENOENT) {
2666 exit(1);
2667 }
2668
2669 ret = qemu_read_config_file(arch_config_name);
2670 if (ret < 0 && ret != -ENOENT) {
2671 exit(1);
2672 }
2673 }
2674 cpudef_init();
2675
2676 /* second pass of option parsing */
2677 optind = 1;
2678 for(;;) {
2679 if (optind >= argc)
2680 break;
2681 if (argv[optind][0] != '-') {
2682 hda_opts = drive_add(argv[optind++], HD_ALIAS, 0);
2683 } else {
2684 const QEMUOption *popt;
2685
2686 popt = lookup_opt(argc, argv, &optarg, &optind);
2687 if (!(popt->arch_mask & arch_type)) {
2688 printf("Option %s not supported for this target\n", popt->name);
2689 exit(1);
2690 }
2691 switch(popt->index) {
2692 case QEMU_OPTION_M:
2693 machine = find_machine(optarg);
2694 if (!machine) {
2695 QEMUMachine *m;
2696 printf("Supported machines are:\n");
2697 for(m = first_machine; m != NULL; m = m->next) {
2698 if (m->alias)
2699 printf("%-10s %s (alias of %s)\n",
2700 m->alias, m->desc, m->name);
2701 printf("%-10s %s%s\n",
2702 m->name, m->desc,
2703 m->is_default ? " (default)" : "");
2704 }
2705 exit(*optarg != '?');
2706 }
2707 break;
2708 case QEMU_OPTION_cpu:
2709 /* hw initialization will check this */
2710 if (*optarg == '?') {
2711 list_cpus(stdout, &fprintf, optarg);
2712 exit(0);
2713 } else {
2714 cpu_model = optarg;
2715 }
2716 break;
2717 case QEMU_OPTION_initrd:
2718 initrd_filename = optarg;
2719 break;
2720 case QEMU_OPTION_hda:
2721 if (cyls == 0)
2722 hda_opts = drive_add(optarg, HD_ALIAS, 0);
2723 else
2724 hda_opts = drive_add(optarg, HD_ALIAS
2725 ",cyls=%d,heads=%d,secs=%d%s",
2726 0, cyls, heads, secs,
2727 translation == BIOS_ATA_TRANSLATION_LBA ?
2728 ",trans=lba" :
2729 translation == BIOS_ATA_TRANSLATION_NONE ?
2730 ",trans=none" : "");
2731 break;
2732 case QEMU_OPTION_hdb:
2733 case QEMU_OPTION_hdc:
2734 case QEMU_OPTION_hdd:
2735 drive_add(optarg, HD_ALIAS, popt->index - QEMU_OPTION_hda);
2736 break;
2737 case QEMU_OPTION_drive:
2738 drive_add(NULL, "%s", optarg);
2739 break;
2740 case QEMU_OPTION_set:
2741 if (qemu_set_option(optarg) != 0)
2742 exit(1);
2743 break;
2744 case QEMU_OPTION_global:
2745 if (qemu_global_option(optarg) != 0)
2746 exit(1);
2747 break;
2748 case QEMU_OPTION_mtdblock:
2749 drive_add(optarg, MTD_ALIAS);
2750 break;
2751 case QEMU_OPTION_sd:
2752 drive_add(optarg, SD_ALIAS);
2753 break;
2754 case QEMU_OPTION_pflash:
2755 drive_add(optarg, PFLASH_ALIAS);
2756 break;
2757 case QEMU_OPTION_snapshot:
2758 snapshot = 1;
2759 break;
2760 case QEMU_OPTION_hdachs:
2761 {
2762 const char *p;
2763 p = optarg;
2764 cyls = strtol(p, (char **)&p, 0);
2765 if (cyls < 1 || cyls > 16383)
2766 goto chs_fail;
2767 if (*p != ',')
2768 goto chs_fail;
2769 p++;
2770 heads = strtol(p, (char **)&p, 0);
2771 if (heads < 1 || heads > 16)
2772 goto chs_fail;
2773 if (*p != ',')
2774 goto chs_fail;
2775 p++;
2776 secs = strtol(p, (char **)&p, 0);
2777 if (secs < 1 || secs > 63)
2778 goto chs_fail;
2779 if (*p == ',') {
2780 p++;
2781 if (!strcmp(p, "none"))
2782 translation = BIOS_ATA_TRANSLATION_NONE;
2783 else if (!strcmp(p, "lba"))
2784 translation = BIOS_ATA_TRANSLATION_LBA;
2785 else if (!strcmp(p, "auto"))
2786 translation = BIOS_ATA_TRANSLATION_AUTO;
2787 else
2788 goto chs_fail;
2789 } else if (*p != '\0') {
2790 chs_fail:
2791 fprintf(stderr, "qemu: invalid physical CHS format\n");
2792 exit(1);
2793 }
2794 if (hda_opts != NULL) {
2795 char num[16];
2796 snprintf(num, sizeof(num), "%d", cyls);
2797 qemu_opt_set(hda_opts, "cyls", num);
2798 snprintf(num, sizeof(num), "%d", heads);
2799 qemu_opt_set(hda_opts, "heads", num);
2800 snprintf(num, sizeof(num), "%d", secs);
2801 qemu_opt_set(hda_opts, "secs", num);
2802 if (translation == BIOS_ATA_TRANSLATION_LBA)
2803 qemu_opt_set(hda_opts, "trans", "lba");
2804 if (translation == BIOS_ATA_TRANSLATION_NONE)
2805 qemu_opt_set(hda_opts, "trans", "none");
2806 }
2807 }
2808 break;
2809 case QEMU_OPTION_numa:
2810 if (nb_numa_nodes >= MAX_NODES) {
2811 fprintf(stderr, "qemu: too many NUMA nodes\n");
2812 exit(1);
2813 }
2814 numa_add(optarg);
2815 break;
2816 case QEMU_OPTION_nographic:
2817 display_type = DT_NOGRAPHIC;
2818 break;
2819 #ifdef CONFIG_CURSES
2820 case QEMU_OPTION_curses:
2821 display_type = DT_CURSES;
2822 break;
2823 #endif
2824 case QEMU_OPTION_portrait:
2825 graphic_rotate = 1;
2826 break;
2827 case QEMU_OPTION_kernel:
2828 kernel_filename = optarg;
2829 break;
2830 case QEMU_OPTION_append:
2831 kernel_cmdline = optarg;
2832 break;
2833 case QEMU_OPTION_cdrom:
2834 drive_add(optarg, CDROM_ALIAS);
2835 break;
2836 case QEMU_OPTION_boot:
2837 {
2838 static const char * const params[] = {
2839 "order", "once", "menu", NULL
2840 };
2841 char buf[sizeof(boot_devices)];
2842 char *standard_boot_devices;
2843 int legacy = 0;
2844
2845 if (!strchr(optarg, '=')) {
2846 legacy = 1;
2847 pstrcpy(buf, sizeof(buf), optarg);
2848 } else if (check_params(buf, sizeof(buf), params, optarg) < 0) {
2849 fprintf(stderr,
2850 "qemu: unknown boot parameter '%s' in '%s'\n",
2851 buf, optarg);
2852 exit(1);
2853 }
2854
2855 if (legacy ||
2856 get_param_value(buf, sizeof(buf), "order", optarg)) {
2857 validate_bootdevices(buf);
2858 pstrcpy(boot_devices, sizeof(boot_devices), buf);
2859 }
2860 if (!legacy) {
2861 if (get_param_value(buf, sizeof(buf),
2862 "once", optarg)) {
2863 validate_bootdevices(buf);
2864 standard_boot_devices = qemu_strdup(boot_devices);
2865 pstrcpy(boot_devices, sizeof(boot_devices), buf);
2866 qemu_register_reset(restore_boot_devices,
2867 standard_boot_devices);
2868 }
2869 if (get_param_value(buf, sizeof(buf),
2870 "menu", optarg)) {
2871 if (!strcmp(buf, "on")) {
2872 boot_menu = 1;
2873 } else if (!strcmp(buf, "off")) {
2874 boot_menu = 0;
2875 } else {
2876 fprintf(stderr,
2877 "qemu: invalid option value '%s'\n",
2878 buf);
2879 exit(1);
2880 }
2881 }
2882 }
2883 }
2884 break;
2885 case QEMU_OPTION_fda:
2886 case QEMU_OPTION_fdb:
2887 drive_add(optarg, FD_ALIAS, popt->index - QEMU_OPTION_fda);
2888 break;
2889 case QEMU_OPTION_no_fd_bootchk:
2890 fd_bootchk = 0;
2891 break;
2892 case QEMU_OPTION_netdev:
2893 if (net_client_parse(&qemu_netdev_opts, optarg) == -1) {
2894 exit(1);
2895 }
2896 break;
2897 case QEMU_OPTION_net:
2898 if (net_client_parse(&qemu_net_opts, optarg) == -1) {
2899 exit(1);
2900 }
2901 break;
2902 #ifdef CONFIG_SLIRP
2903 case QEMU_OPTION_tftp:
2904 legacy_tftp_prefix = optarg;
2905 break;
2906 case QEMU_OPTION_bootp:
2907 legacy_bootp_filename = optarg;
2908 break;
2909 #ifndef _WIN32
2910 case QEMU_OPTION_smb:
2911 if (net_slirp_smb(optarg) < 0)
2912 exit(1);
2913 break;
2914 #endif
2915 case QEMU_OPTION_redir:
2916 if (net_slirp_redir(optarg) < 0)
2917 exit(1);
2918 break;
2919 #endif
2920 case QEMU_OPTION_bt:
2921 add_device_config(DEV_BT, optarg);
2922 break;
2923 case QEMU_OPTION_audio_help:
2924 if (!(audio_available())) {
2925 printf("Option %s not supported for this target\n", popt->name);
2926 exit(1);
2927 }
2928 AUD_help ();
2929 exit (0);
2930 break;
2931 case QEMU_OPTION_soundhw:
2932 if (!(audio_available())) {
2933 printf("Option %s not supported for this target\n", popt->name);
2934 exit(1);
2935 }
2936 select_soundhw (optarg);
2937 break;
2938 case QEMU_OPTION_h:
2939 help(0);
2940 break;
2941 case QEMU_OPTION_version:
2942 version();
2943 exit(0);
2944 break;
2945 case QEMU_OPTION_m: {
2946 uint64_t value;
2947 char *ptr;
2948
2949 value = strtoul(optarg, &ptr, 10);
2950 switch (*ptr) {
2951 case 0: case 'M': case 'm':
2952 value <<= 20;
2953 break;
2954 case 'G': case 'g':
2955 value <<= 30;
2956 break;
2957 default:
2958 fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
2959 exit(1);
2960 }
2961
2962 /* On 32-bit hosts, QEMU is limited by virtual address space */
2963 if (value > (2047 << 20) && HOST_LONG_BITS == 32) {
2964 fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
2965 exit(1);
2966 }
2967 if (value != (uint64_t)(ram_addr_t)value) {
2968 fprintf(stderr, "qemu: ram size too large\n");
2969 exit(1);
2970 }
2971 ram_size = value;
2972 break;
2973 }
2974 case QEMU_OPTION_mempath:
2975 mem_path = optarg;
2976 break;
2977 #ifdef MAP_POPULATE
2978 case QEMU_OPTION_mem_prealloc:
2979 mem_prealloc = 1;
2980 break;
2981 #endif
2982 case QEMU_OPTION_d:
2983 set_cpu_log(optarg);
2984 break;
2985 case QEMU_OPTION_s:
2986 gdbstub_dev = "tcp::" DEFAULT_GDBSTUB_PORT;
2987 break;
2988 case QEMU_OPTION_gdb:
2989 gdbstub_dev = optarg;
2990 break;
2991 case QEMU_OPTION_L:
2992 data_dir = optarg;
2993 break;
2994 case QEMU_OPTION_bios:
2995 bios_name = optarg;
2996 break;
2997 case QEMU_OPTION_singlestep:
2998 singlestep = 1;
2999 break;
3000 case QEMU_OPTION_S:
3001 autostart = 0;
3002 break;
3003 case QEMU_OPTION_k:
3004 keyboard_layout = optarg;
3005 break;
3006 case QEMU_OPTION_localtime:
3007 rtc_utc = 0;
3008 break;
3009 case QEMU_OPTION_vga:
3010 select_vgahw (optarg);
3011 break;
3012 case QEMU_OPTION_g:
3013 {
3014 const char *p;
3015 int w, h, depth;
3016 p = optarg;
3017 w = strtol(p, (char **)&p, 10);
3018 if (w <= 0) {
3019 graphic_error:
3020 fprintf(stderr, "qemu: invalid resolution or depth\n");
3021 exit(1);
3022 }
3023 if (*p != 'x')
3024 goto graphic_error;
3025 p++;
3026 h = strtol(p, (char **)&p, 10);
3027 if (h <= 0)
3028 goto graphic_error;
3029 if (*p == 'x') {
3030 p++;
3031 depth = strtol(p, (char **)&p, 10);
3032 if (depth != 8 && depth != 15 && depth != 16 &&
3033 depth != 24 && depth != 32)
3034 goto graphic_error;
3035 } else if (*p == '\0') {
3036 depth = graphic_depth;
3037 } else {
3038 goto graphic_error;
3039 }
3040
3041 graphic_width = w;
3042 graphic_height = h;
3043 graphic_depth = depth;
3044 }
3045 break;
3046 case QEMU_OPTION_echr:
3047 {
3048 char *r;
3049 term_escape_char = strtol(optarg, &r, 0);
3050 if (r == optarg)
3051 printf("Bad argument to echr\n");
3052 break;
3053 }
3054 case QEMU_OPTION_monitor:
3055 monitor_parse(optarg, "readline");
3056 default_monitor = 0;
3057 break;
3058 case QEMU_OPTION_qmp:
3059 monitor_parse(optarg, "control");
3060 default_monitor = 0;
3061 break;
3062 case QEMU_OPTION_mon:
3063 opts = qemu_opts_parse(&qemu_mon_opts, optarg, 1);
3064 if (!opts) {
3065 exit(1);
3066 }
3067 default_monitor = 0;
3068 break;
3069 case QEMU_OPTION_chardev:
3070 opts = qemu_opts_parse(&qemu_chardev_opts, optarg, 1);
3071 if (!opts) {
3072 exit(1);
3073 }
3074 break;
3075 #ifdef CONFIG_LINUX
3076 case QEMU_OPTION_fsdev:
3077 opts = qemu_opts_parse(&qemu_fsdev_opts, optarg, 1);
3078 if (!opts) {
3079 fprintf(stderr, "parse error: %s\n", optarg);
3080 exit(1);
3081 }
3082 break;
3083 case QEMU_OPTION_virtfs: {
3084 char *arg_fsdev = NULL;
3085 char *arg_9p = NULL;
3086 int len = 0;
3087
3088 opts = qemu_opts_parse(&qemu_virtfs_opts, optarg, 1);
3089 if (!opts) {
3090 fprintf(stderr, "parse error: %s\n", optarg);
3091 exit(1);
3092 }
3093
3094 len = strlen(",id=,path=");
3095 len += strlen(qemu_opt_get(opts, "fstype"));
3096 len += strlen(qemu_opt_get(opts, "mount_tag"));
3097 len += strlen(qemu_opt_get(opts, "path"));
3098 arg_fsdev = qemu_malloc((len + 1) * sizeof(*arg_fsdev));
3099
3100 if (!arg_fsdev) {
3101 fprintf(stderr, "No memory to parse -fsdev for %s\n",
3102 optarg);
3103 exit(1);
3104 }
3105
3106 sprintf(arg_fsdev, "%s,id=%s,path=%s",
3107 qemu_opt_get(opts, "fstype"),
3108 qemu_opt_get(opts, "mount_tag"),
3109 qemu_opt_get(opts, "path"));
3110
3111 len = strlen("virtio-9p-pci,fsdev=,mount_tag=");
3112 len += 2*strlen(qemu_opt_get(opts, "mount_tag"));
3113 arg_9p = qemu_malloc((len + 1) * sizeof(*arg_9p));
3114
3115 if (!arg_9p) {
3116 fprintf(stderr, "No memory to parse -device for %s\n",
3117 optarg);
3118 exit(1);
3119 }
3120
3121 sprintf(arg_9p, "virtio-9p-pci,fsdev=%s,mount_tag=%s",
3122 qemu_opt_get(opts, "mount_tag"),
3123 qemu_opt_get(opts, "mount_tag"));
3124
3125 if (!qemu_opts_parse(&qemu_fsdev_opts, arg_fsdev, 1)) {
3126 fprintf(stderr, "parse error [fsdev]: %s\n", optarg);
3127 exit(1);
3128 }
3129
3130 if (!qemu_opts_parse(&qemu_device_opts, arg_9p, 1)) {
3131 fprintf(stderr, "parse error [device]: %s\n", optarg);
3132 exit(1);
3133 }
3134
3135 qemu_free(arg_fsdev);
3136 qemu_free(arg_9p);
3137 break;
3138 }
3139 #endif
3140 case QEMU_OPTION_serial:
3141 add_device_config(DEV_SERIAL, optarg);
3142 default_serial = 0;
3143 if (strncmp(optarg, "mon:", 4) == 0) {
3144 default_monitor = 0;
3145 }
3146 break;
3147 case QEMU_OPTION_watchdog:
3148 if (watchdog) {
3149 fprintf(stderr,
3150 "qemu: only one watchdog option may be given\n");
3151 return 1;
3152 }
3153 watchdog = optarg;
3154 break;
3155 case QEMU_OPTION_watchdog_action:
3156 if (select_watchdog_action(optarg) == -1) {
3157 fprintf(stderr, "Unknown -watchdog-action parameter\n");
3158 exit(1);
3159 }
3160 break;
3161 case QEMU_OPTION_virtiocon:
3162 add_device_config(DEV_VIRTCON, optarg);
3163 default_virtcon = 0;
3164 if (strncmp(optarg, "mon:", 4) == 0) {
3165 default_monitor = 0;
3166 }
3167 break;
3168 case QEMU_OPTION_parallel:
3169 add_device_config(DEV_PARALLEL, optarg);
3170 default_parallel = 0;
3171 if (strncmp(optarg, "mon:", 4) == 0) {
3172 default_monitor = 0;
3173 }
3174 break;
3175 case QEMU_OPTION_debugcon:
3176 add_device_config(DEV_DEBUGCON, optarg);
3177 break;
3178 case QEMU_OPTION_loadvm:
3179 loadvm = optarg;
3180 break;
3181 case QEMU_OPTION_full_screen:
3182 full_screen = 1;
3183 break;
3184 #ifdef CONFIG_SDL
3185 case QEMU_OPTION_no_frame:
3186 no_frame = 1;
3187 break;
3188 case QEMU_OPTION_alt_grab:
3189 alt_grab = 1;
3190 break;
3191 case QEMU_OPTION_ctrl_grab:
3192 ctrl_grab = 1;
3193 break;
3194 case QEMU_OPTION_no_quit:
3195 no_quit = 1;
3196 break;
3197 case QEMU_OPTION_sdl:
3198 display_type = DT_SDL;
3199 break;
3200 #endif
3201 case QEMU_OPTION_pidfile:
3202 pid_file = optarg;
3203 break;
3204 case QEMU_OPTION_win2k_hack:
3205 win2k_install_hack = 1;
3206 break;
3207 case QEMU_OPTION_rtc_td_hack:
3208 rtc_td_hack = 1;
3209 break;
3210 case QEMU_OPTION_acpitable:
3211 do_acpitable_option(optarg);
3212 break;
3213 case QEMU_OPTION_smbios:
3214 do_smbios_option(optarg);
3215 break;
3216 case QEMU_OPTION_enable_kvm:
3217 kvm_allowed = 1;
3218 break;
3219 case QEMU_OPTION_usb:
3220 usb_enabled = 1;
3221 break;
3222 case QEMU_OPTION_usbdevice:
3223 usb_enabled = 1;
3224 add_device_config(DEV_USB, optarg);
3225 break;
3226 case QEMU_OPTION_device:
3227 if (!qemu_opts_parse(&qemu_device_opts, optarg, 1)) {
3228 exit(1);
3229 }
3230 break;
3231 case QEMU_OPTION_smp:
3232 smp_parse(optarg);
3233 if (smp_cpus < 1) {
3234 fprintf(stderr, "Invalid number of CPUs\n");
3235 exit(1);
3236 }
3237 if (max_cpus < smp_cpus) {
3238 fprintf(stderr, "maxcpus must be equal to or greater than "
3239 "smp\n");
3240 exit(1);
3241 }
3242 if (max_cpus > 255) {
3243 fprintf(stderr, "Unsupported number of maxcpus\n");
3244 exit(1);
3245 }
3246 break;
3247 case QEMU_OPTION_vnc:
3248 display_type = DT_VNC;
3249 vnc_display = optarg;
3250 break;
3251 case QEMU_OPTION_no_acpi:
3252 acpi_enabled = 0;
3253 break;
3254 case QEMU_OPTION_no_hpet:
3255 no_hpet = 1;
3256 break;
3257 case QEMU_OPTION_balloon:
3258 if (balloon_parse(optarg) < 0) {
3259 fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
3260 exit(1);
3261 }
3262 break;
3263 case QEMU_OPTION_no_reboot:
3264 no_reboot = 1;
3265 break;
3266 case QEMU_OPTION_no_shutdown:
3267 no_shutdown = 1;
3268 break;
3269 case QEMU_OPTION_show_cursor:
3270 cursor_hide = 0;
3271 break;
3272 case QEMU_OPTION_uuid:
3273 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
3274 fprintf(stderr, "Fail to parse UUID string."
3275 " Wrong format.\n");
3276 exit(1);
3277 }
3278 break;
3279 #ifndef _WIN32
3280 case QEMU_OPTION_daemonize:
3281 daemonize = 1;
3282 break;
3283 #endif
3284 case QEMU_OPTION_option_rom:
3285 if (nb_option_roms >= MAX_OPTION_ROMS) {
3286 fprintf(stderr, "Too many option ROMs\n");
3287 exit(1);
3288 }
3289 option_rom[nb_option_roms] = optarg;
3290 nb_option_roms++;
3291 break;
3292 case QEMU_OPTION_semihosting:
3293 semihosting_enabled = 1;
3294 break;
3295 case QEMU_OPTION_name:
3296 qemu_name = qemu_strdup(optarg);
3297 {
3298 char *p = strchr(qemu_name, ',');
3299 if (p != NULL) {
3300 *p++ = 0;
3301 if (strncmp(p, "process=", 8)) {
3302 fprintf(stderr, "Unknown subargument %s to -name", p);
3303 exit(1);
3304 }
3305 p += 8;
3306 set_proc_name(p);
3307 }
3308 }
3309 break;
3310 case QEMU_OPTION_prom_env:
3311 if (nb_prom_envs >= MAX_PROM_ENVS) {
3312 fprintf(stderr, "Too many prom variables\n");
3313 exit(1);
3314 }
3315 prom_envs[nb_prom_envs] = optarg;
3316 nb_prom_envs++;
3317 break;
3318 case QEMU_OPTION_old_param:
3319 old_param = 1;
3320 break;
3321 case QEMU_OPTION_clock:
3322 configure_alarms(optarg);
3323 break;
3324 case QEMU_OPTION_startdate:
3325 configure_rtc_date_offset(optarg, 1);
3326 break;
3327 case QEMU_OPTION_rtc:
3328 opts = qemu_opts_parse(&qemu_rtc_opts, optarg, 0);
3329 if (!opts) {
3330 exit(1);
3331 }
3332 configure_rtc(opts);
3333 break;
3334 case QEMU_OPTION_tb_size:
3335 tb_size = strtol(optarg, NULL, 0);
3336 if (tb_size < 0)
3337 tb_size = 0;
3338 break;
3339 case QEMU_OPTION_icount:
3340 icount_option = optarg;
3341 break;
3342 case QEMU_OPTION_incoming:
3343 incoming = optarg;
3344 break;
3345 case QEMU_OPTION_nodefaults:
3346 default_serial = 0;
3347 default_parallel = 0;
3348 default_virtcon = 0;
3349 default_monitor = 0;
3350 default_vga = 0;
3351 default_net = 0;
3352 default_floppy = 0;
3353 default_cdrom = 0;
3354 default_sdcard = 0;
3355 break;
3356 #ifndef _WIN32
3357 case QEMU_OPTION_chroot:
3358 chroot_dir = optarg;
3359 break;
3360 case QEMU_OPTION_runas:
3361 run_as = optarg;
3362 break;
3363 #endif
3364 case QEMU_OPTION_xen_domid:
3365 if (!(xen_available())) {
3366 printf("Option %s not supported for this target\n", popt->name);
3367 exit(1);
3368 }
3369 xen_domid = atoi(optarg);
3370 break;
3371 case QEMU_OPTION_xen_create:
3372 if (!(xen_available())) {
3373 printf("Option %s not supported for this target\n", popt->name);
3374 exit(1);
3375 }
3376 xen_mode = XEN_CREATE;
3377 break;
3378 case QEMU_OPTION_xen_attach:
3379 if (!(xen_available())) {
3380 printf("Option %s not supported for this target\n", popt->name);
3381 exit(1);
3382 }
3383 xen_mode = XEN_ATTACH;
3384 break;
3385 case QEMU_OPTION_readconfig:
3386 {
3387 int ret = qemu_read_config_file(optarg);
3388 if (ret < 0) {
3389 fprintf(stderr, "read config %s: %s\n", optarg,
3390 strerror(-ret));
3391 exit(1);
3392 }
3393 break;
3394 }
3395 case QEMU_OPTION_writeconfig:
3396 {
3397 FILE *fp;
3398 if (strcmp(optarg, "-") == 0) {
3399 fp = stdout;
3400 } else {
3401 fp = fopen(optarg, "w");
3402 if (fp == NULL) {
3403 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
3404 exit(1);
3405 }
3406 }
3407 qemu_config_write(fp);
3408 fclose(fp);
3409 break;
3410 }
3411 }
3412 }
3413 }
3414 loc_set_none();
3415
3416 /* If no data_dir is specified then try to find it relative to the
3417 executable path. */
3418 if (!data_dir) {
3419 data_dir = find_datadir(argv[0]);
3420 }
3421 /* If all else fails use the install patch specified when building. */
3422 if (!data_dir) {
3423 data_dir = CONFIG_QEMU_SHAREDIR;
3424 }
3425
3426 /*
3427 * Default to max_cpus = smp_cpus, in case the user doesn't
3428 * specify a max_cpus value.
3429 */
3430 if (!max_cpus)
3431 max_cpus = smp_cpus;
3432
3433 machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
3434 if (smp_cpus > machine->max_cpus) {
3435 fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
3436 "supported by machine `%s' (%d)\n", smp_cpus, machine->name,
3437 machine->max_cpus);
3438 exit(1);
3439 }
3440
3441 qemu_opts_foreach(&qemu_device_opts, default_driver_check, NULL, 0);
3442 qemu_opts_foreach(&qemu_global_opts, default_driver_check, NULL, 0);
3443
3444 if (machine->no_serial) {
3445 default_serial = 0;
3446 }
3447 if (machine->no_parallel) {
3448 default_parallel = 0;
3449 }
3450 if (!machine->use_virtcon) {
3451 default_virtcon = 0;
3452 }
3453 if (machine->no_vga) {
3454 default_vga = 0;
3455 }
3456 if (machine->no_floppy) {
3457 default_floppy = 0;
3458 }
3459 if (machine->no_cdrom) {
3460 default_cdrom = 0;
3461 }
3462 if (machine->no_sdcard) {
3463 default_sdcard = 0;
3464 }
3465
3466 if (display_type == DT_NOGRAPHIC) {
3467 if (default_parallel)
3468 add_device_config(DEV_PARALLEL, "null");
3469 if (default_serial && default_monitor) {
3470 add_device_config(DEV_SERIAL, "mon:stdio");
3471 } else if (default_virtcon && default_monitor) {
3472 add_device_config(DEV_VIRTCON, "mon:stdio");
3473 } else {
3474 if (default_serial)
3475 add_device_config(DEV_SERIAL, "stdio");
3476 if (default_virtcon)
3477 add_device_config(DEV_VIRTCON, "stdio");
3478 if (default_monitor)
3479 monitor_parse("stdio", "readline");
3480 }
3481 } else {
3482 if (default_serial)
3483 add_device_config(DEV_SERIAL, "vc:80Cx24C");
3484 if (default_parallel)
3485 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
3486 if (default_monitor)
3487 monitor_parse("vc:80Cx24C", "readline");
3488 if (default_virtcon)
3489 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
3490 }
3491 if (default_vga)
3492 vga_interface_type = VGA_CIRRUS;
3493
3494 socket_init();
3495
3496 if (qemu_opts_foreach(&qemu_chardev_opts, chardev_init_func, NULL, 1) != 0)
3497 exit(1);
3498 #ifdef CONFIG_LINUX
3499 if (qemu_opts_foreach(&qemu_fsdev_opts, fsdev_init_func, NULL, 1) != 0) {
3500 exit(1);
3501 }
3502 #endif
3503
3504 #ifndef _WIN32
3505 if (daemonize) {
3506 pid_t pid;
3507
3508 if (pipe(fds) == -1)
3509 exit(1);
3510
3511 pid = fork();
3512 if (pid > 0) {
3513 uint8_t status;
3514 ssize_t len;
3515
3516 close(fds[1]);
3517
3518 again:
3519 len = read(fds[0], &status, 1);
3520 if (len == -1 && (errno == EINTR))
3521 goto again;
3522
3523 if (len != 1)
3524 exit(1);
3525 else if (status == 1) {
3526 fprintf(stderr, "Could not acquire pidfile: %s\n", strerror(errno));
3527 exit(1);
3528 } else
3529 exit(0);
3530 } else if (pid < 0)
3531 exit(1);
3532
3533 close(fds[0]);
3534 qemu_set_cloexec(fds[1]);
3535
3536 setsid();
3537
3538 pid = fork();
3539 if (pid > 0)
3540 exit(0);
3541 else if (pid < 0)
3542 exit(1);
3543
3544 umask(027);
3545
3546 signal(SIGTSTP, SIG_IGN);
3547 signal(SIGTTOU, SIG_IGN);
3548 signal(SIGTTIN, SIG_IGN);
3549 }
3550 #endif
3551
3552 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
3553 #ifndef _WIN32
3554 if (daemonize) {
3555 uint8_t status = 1;
3556 if (write(fds[1], &status, 1) != 1) {
3557 perror("daemonize. Writing to pipe\n");
3558 }
3559 } else
3560 #endif
3561 fprintf(stderr, "Could not acquire pid file: %s\n", strerror(errno));
3562 exit(1);
3563 }
3564
3565 if (kvm_allowed) {
3566 int ret = kvm_init(smp_cpus);
3567 if (ret < 0) {
3568 if (!kvm_available()) {
3569 printf("KVM not supported for this target\n");
3570 } else {
3571 fprintf(stderr, "failed to initialize KVM: %s\n", strerror(-ret));
3572 }
3573 exit(1);
3574 }
3575 }
3576
3577 if (qemu_init_main_loop()) {
3578 fprintf(stderr, "qemu_init_main_loop failed\n");
3579 exit(1);
3580 }
3581 linux_boot = (kernel_filename != NULL);
3582
3583 if (!linux_boot && *kernel_cmdline != '\0') {
3584 fprintf(stderr, "-append only allowed with -kernel option\n");
3585 exit(1);
3586 }
3587
3588 if (!linux_boot && initrd_filename != NULL) {
3589 fprintf(stderr, "-initrd only allowed with -kernel option\n");
3590 exit(1);
3591 }
3592
3593 #ifndef _WIN32
3594 /* Win32 doesn't support line-buffering and requires size >= 2 */
3595 setvbuf(stdout, NULL, _IOLBF, 0);
3596 #endif
3597
3598 if (init_timer_alarm() < 0) {
3599 fprintf(stderr, "could not initialize alarm timer\n");
3600 exit(1);
3601 }
3602 configure_icount(icount_option);
3603
3604 if (net_init_clients() < 0) {
3605 exit(1);
3606 }
3607
3608 /* init the bluetooth world */
3609 if (foreach_device_config(DEV_BT, bt_parse))
3610 exit(1);
3611
3612 /* init the memory */
3613 if (ram_size == 0)
3614 ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
3615
3616 /* init the dynamic translator */
3617 cpu_exec_init_all(tb_size * 1024 * 1024);
3618
3619 bdrv_init_with_whitelist();
3620
3621 blk_mig_init();
3622
3623 if (default_cdrom) {
3624 /* we always create the cdrom drive, even if no disk is there */
3625 drive_add(NULL, CDROM_ALIAS);
3626 }
3627
3628 if (default_floppy) {
3629 /* we always create at least one floppy */
3630 drive_add(NULL, FD_ALIAS, 0);
3631 }
3632
3633 if (default_sdcard) {
3634 /* we always create one sd slot, even if no card is in it */
3635 drive_add(NULL, SD_ALIAS);
3636 }
3637
3638 /* open the virtual block devices */
3639 if (snapshot)
3640 qemu_opts_foreach(&qemu_drive_opts, drive_enable_snapshot, NULL, 0);
3641 if (qemu_opts_foreach(&qemu_drive_opts, drive_init_func, machine, 1) != 0)
3642 exit(1);
3643
3644 register_savevm_live("ram", 0, 3, NULL, ram_save_live, NULL,
3645 ram_load, NULL);
3646
3647 if (nb_numa_nodes > 0) {
3648 int i;
3649
3650 if (nb_numa_nodes > smp_cpus) {
3651 nb_numa_nodes = smp_cpus;
3652 }
3653
3654 /* If no memory size if given for any node, assume the default case
3655 * and distribute the available memory equally across all nodes
3656 */
3657 for (i = 0; i < nb_numa_nodes; i++) {
3658 if (node_mem[i] != 0)
3659 break;
3660 }
3661 if (i == nb_numa_nodes) {
3662 uint64_t usedmem = 0;
3663
3664 /* On Linux, the each node's border has to be 8MB aligned,
3665 * the final node gets the rest.
3666 */
3667 for (i = 0; i < nb_numa_nodes - 1; i++) {
3668 node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1);
3669 usedmem += node_mem[i];
3670 }
3671 node_mem[i] = ram_size - usedmem;
3672 }
3673
3674 for (i = 0; i < nb_numa_nodes; i++) {
3675 if (node_cpumask[i] != 0)
3676 break;
3677 }
3678 /* assigning the VCPUs round-robin is easier to implement, guest OSes
3679 * must cope with this anyway, because there are BIOSes out there in
3680 * real machines which also use this scheme.
3681 */
3682 if (i == nb_numa_nodes) {
3683 for (i = 0; i < smp_cpus; i++) {
3684 node_cpumask[i % nb_numa_nodes] |= 1 << i;
3685 }
3686 }
3687 }
3688
3689 if (qemu_opts_foreach(&qemu_mon_opts, mon_init_func, NULL, 1) != 0) {
3690 exit(1);
3691 }
3692
3693 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
3694 exit(1);
3695 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
3696 exit(1);
3697 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
3698 exit(1);
3699 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
3700 exit(1);
3701
3702 module_call_init(MODULE_INIT_DEVICE);
3703
3704 if (qemu_opts_foreach(&qemu_device_opts, device_help_func, NULL, 0) != 0)
3705 exit(0);
3706
3707 if (watchdog) {
3708 i = select_watchdog(watchdog);
3709 if (i > 0)
3710 exit (i == 1 ? 1 : 0);
3711 }
3712
3713 if (machine->compat_props) {
3714 qdev_prop_register_global_list(machine->compat_props);
3715 }
3716 qemu_add_globals();
3717
3718 machine->init(ram_size, boot_devices,
3719 kernel_filename, kernel_cmdline, initrd_filename, cpu_model);
3720
3721 cpu_synchronize_all_post_init();
3722
3723 #ifndef _WIN32
3724 /* must be after terminal init, SDL library changes signal handlers */
3725 sighandler_setup();
3726 #endif
3727
3728 set_numa_modes();
3729
3730 current_machine = machine;
3731
3732 /* init USB devices */
3733 if (usb_enabled) {
3734 if (foreach_device_config(DEV_USB, usb_parse) < 0)
3735 exit(1);
3736 }
3737
3738 /* init generic devices */
3739 if (qemu_opts_foreach(&qemu_device_opts, device_init_func, NULL, 1) != 0)
3740 exit(1);
3741
3742 net_check_clients();
3743
3744 /* just use the first displaystate for the moment */
3745 ds = get_displaystate();
3746
3747 if (display_type == DT_DEFAULT) {
3748 #if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
3749 display_type = DT_SDL;
3750 #else
3751 display_type = DT_VNC;
3752 vnc_display = "localhost:0,to=99";
3753 show_vnc_port = 1;
3754 #endif
3755 }
3756
3757
3758 switch (display_type) {
3759 case DT_NOGRAPHIC:
3760 break;
3761 #if defined(CONFIG_CURSES)
3762 case DT_CURSES:
3763 curses_display_init(ds, full_screen);
3764 break;
3765 #endif
3766 #if defined(CONFIG_SDL)
3767 case DT_SDL:
3768 sdl_display_init(ds, full_screen, no_frame);
3769 break;
3770 #elif defined(CONFIG_COCOA)
3771 case DT_SDL:
3772 cocoa_display_init(ds, full_screen);
3773 break;
3774 #endif
3775 case DT_VNC:
3776 vnc_display_init(ds);
3777 if (vnc_display_open(ds, vnc_display) < 0)
3778 exit(1);
3779
3780 if (show_vnc_port) {
3781 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
3782 }
3783 break;
3784 default:
3785 break;
3786 }
3787 dpy_resize(ds);
3788
3789 dcl = ds->listeners;
3790 while (dcl != NULL) {
3791 if (dcl->dpy_refresh != NULL) {
3792 ds->gui_timer = qemu_new_timer(rt_clock, gui_update, ds);
3793 qemu_mod_timer(ds->gui_timer, qemu_get_clock(rt_clock));
3794 }
3795 dcl = dcl->next;
3796 }
3797
3798 if (display_type == DT_NOGRAPHIC || display_type == DT_VNC) {
3799 nographic_timer = qemu_new_timer(rt_clock, nographic_update, NULL);
3800 qemu_mod_timer(nographic_timer, qemu_get_clock(rt_clock));
3801 }
3802
3803 text_consoles_set_display(ds);
3804
3805 if (gdbstub_dev && gdbserver_start(gdbstub_dev) < 0) {
3806 fprintf(stderr, "qemu: could not open gdbserver on device '%s'\n",
3807 gdbstub_dev);
3808 exit(1);
3809 }
3810
3811 qdev_machine_creation_done();
3812
3813 if (rom_load_all() != 0) {
3814 fprintf(stderr, "rom loading failed\n");
3815 exit(1);
3816 }
3817
3818 qemu_system_reset();
3819 if (loadvm) {
3820 if (load_vmstate(loadvm) < 0) {
3821 autostart = 0;
3822 }
3823 }
3824
3825 if (incoming) {
3826 qemu_start_incoming_migration(incoming);
3827 } else if (autostart) {
3828 vm_start();
3829 }
3830
3831 #ifndef _WIN32
3832 if (daemonize) {
3833 uint8_t status = 0;
3834 ssize_t len;
3835
3836 again1:
3837 len = write(fds[1], &status, 1);
3838 if (len == -1 && (errno == EINTR))
3839 goto again1;
3840
3841 if (len != 1)
3842 exit(1);
3843
3844 if (chdir("/")) {
3845 perror("not able to chdir to /");
3846 exit(1);
3847 }
3848 TFR(fd = qemu_open("/dev/null", O_RDWR));
3849 if (fd == -1)
3850 exit(1);
3851 }
3852
3853 if (run_as) {
3854 pwd = getpwnam(run_as);
3855 if (!pwd) {
3856 fprintf(stderr, "User \"%s\" doesn't exist\n", run_as);
3857 exit(1);
3858 }
3859 }
3860
3861 if (chroot_dir) {
3862 if (chroot(chroot_dir) < 0) {
3863 fprintf(stderr, "chroot failed\n");
3864 exit(1);
3865 }
3866 if (chdir("/")) {
3867 perror("not able to chdir to /");
3868 exit(1);
3869 }
3870 }
3871
3872 if (run_as) {
3873 if (setgid(pwd->pw_gid) < 0) {
3874 fprintf(stderr, "Failed to setgid(%d)\n", pwd->pw_gid);
3875 exit(1);
3876 }
3877 if (setuid(pwd->pw_uid) < 0) {
3878 fprintf(stderr, "Failed to setuid(%d)\n", pwd->pw_uid);
3879 exit(1);
3880 }
3881 if (setuid(0) != -1) {
3882 fprintf(stderr, "Dropping privileges failed\n");
3883 exit(1);
3884 }
3885 }
3886
3887 if (daemonize) {
3888 dup2(fd, 0);
3889 dup2(fd, 1);
3890 dup2(fd, 2);
3891
3892 close(fd);
3893 }
3894 #endif
3895
3896 main_loop();
3897 quit_timers();
3898 net_cleanup();
3899
3900 return 0;
3901 }
QEmu