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close all the block drivers before the qemu process exits
[qemu.git] / vl.c
blob551138f0ccdeebb164b9b881ffa6bf6138823509
1 /*
2 * QEMU System Emulator
3 *
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24 #include <unistd.h>
25 #include <fcntl.h>
26 #include <signal.h>
27 #include <time.h>
28 #include <errno.h>
29 #include <sys/time.h>
30 #include <zlib.h>
31
32 /* Needed early for CONFIG_BSD etc. */
33 #include "config-host.h"
34
35 #ifndef _WIN32
36 #include <libgen.h>
37 #include <pwd.h>
38 #include <sys/times.h>
39 #include <sys/wait.h>
40 #include <termios.h>
41 #include <sys/mman.h>
42 #include <sys/ioctl.h>
43 #include <sys/resource.h>
44 #include <sys/socket.h>
45 #include <netinet/in.h>
46 #include <net/if.h>
47 #include <arpa/inet.h>
48 #include <dirent.h>
49 #include <netdb.h>
50 #include <sys/select.h>
51 #ifdef CONFIG_BSD
52 #include <sys/stat.h>
53 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
54 #include <libutil.h>
55 #include <sys/sysctl.h>
56 #else
57 #include <util.h>
58 #endif
59 #else
60 #ifdef __linux__
61 #include <pty.h>
62 #include <malloc.h>
63 #include <sys/prctl.h>
64
65 #include <linux/ppdev.h>
66 #include <linux/parport.h>
67 #endif
68 #ifdef __sun__
69 #include <sys/stat.h>
70 #include <sys/ethernet.h>
71 #include <sys/sockio.h>
72 #include <netinet/arp.h>
73 #include <netinet/in.h>
74 #include <netinet/in_systm.h>
75 #include <netinet/ip.h>
76 #include <netinet/ip_icmp.h> // must come after ip.h
77 #include <netinet/udp.h>
78 #include <netinet/tcp.h>
79 #include <net/if.h>
80 #include <syslog.h>
81 #include <stropts.h>
82 /* See MySQL bug #7156 (http://bugs.mysql.com/bug.php?id=7156) for
83 discussion about Solaris header problems */
84 extern int madvise(caddr_t, size_t, int);
85 #endif
86 #endif
87 #endif
88
89 #if defined(__OpenBSD__)
90 #include <util.h>
91 #endif
92
93 #if defined(CONFIG_VDE)
94 #include <libvdeplug.h>
95 #endif
96
97 #ifdef _WIN32
98 #include <windows.h>
99 #endif
100
101 #ifdef CONFIG_SDL
102 #if defined(__APPLE__) || defined(main)
103 #include <SDL.h>
104 int qemu_main(int argc, char **argv, char **envp);
105 int main(int argc, char **argv)
106 {
107 return qemu_main(argc, argv, NULL);
108 }
109 #undef main
110 #define main qemu_main
111 #endif
112 #endif /* CONFIG_SDL */
113
114 #ifdef CONFIG_COCOA
115 #undef main
116 #define main qemu_main
117 #endif /* CONFIG_COCOA */
118
119 #include "hw/hw.h"
120 #include "hw/boards.h"
121 #include "hw/usb.h"
122 #include "hw/pcmcia.h"
123 #include "hw/pc.h"
124 #include "hw/isa.h"
125 #include "hw/baum.h"
126 #include "hw/bt.h"
127 #include "hw/watchdog.h"
128 #include "hw/smbios.h"
129 #include "hw/xen.h"
130 #include "hw/qdev.h"
131 #include "hw/loader.h"
132 #include "bt-host.h"
133 #include "net.h"
134 #include "net/slirp.h"
135 #include "monitor.h"
136 #include "console.h"
137 #include "sysemu.h"
138 #include "gdbstub.h"
139 #include "qemu-timer.h"
140 #include "qemu-char.h"
141 #include "cache-utils.h"
142 #include "block.h"
143 #include "block_int.h"
144 #include "block-migration.h"
145 #include "dma.h"
146 #include "audio/audio.h"
147 #include "migration.h"
148 #include "kvm.h"
149 #include "qemu-option.h"
150 #include "qemu-config.h"
151 #include "qemu-objects.h"
152 #ifdef CONFIG_LINUX
153 #include "fsdev/qemu-fsdev.h"
154 #endif
155
156 #include "disas.h"
157
158 #include "qemu_socket.h"
159
160 #include "slirp/libslirp.h"
161
162 #include "qemu-queue.h"
163 #include "cpus.h"
164 #include "arch_init.h"
165
166 //#define DEBUG_NET
167 //#define DEBUG_SLIRP
168
169 #define DEFAULT_RAM_SIZE 128
170
171 #define MAX_VIRTIO_CONSOLES 1
172
173 static const char *data_dir;
174 const char *bios_name = NULL;
175 struct drivelist drives = QTAILQ_HEAD_INITIALIZER(drives);
176 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
177 DisplayType display_type = DT_DEFAULT;
178 const char* keyboard_layout = NULL;
179 ram_addr_t ram_size;
180 const char *mem_path = NULL;
181 #ifdef MAP_POPULATE
182 int mem_prealloc = 0; /* force preallocation of physical target memory */
183 #endif
184 int nb_nics;
185 NICInfo nd_table[MAX_NICS];
186 int vm_running;
187 int autostart;
188 static int rtc_utc = 1;
189 static int rtc_date_offset = -1; /* -1 means no change */
190 QEMUClock *rtc_clock;
191 int vga_interface_type = VGA_NONE;
192 static int full_screen = 0;
193 #ifdef CONFIG_SDL
194 static int no_frame = 0;
195 #endif
196 int no_quit = 0;
197 CharDriverState *serial_hds[MAX_SERIAL_PORTS];
198 CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
199 CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES];
200 int win2k_install_hack = 0;
201 int rtc_td_hack = 0;
202 int usb_enabled = 0;
203 int singlestep = 0;
204 int smp_cpus = 1;
205 int max_cpus = 0;
206 int smp_cores = 1;
207 int smp_threads = 1;
208 const char *vnc_display;
209 int acpi_enabled = 1;
210 int no_hpet = 0;
211 int fd_bootchk = 1;
212 int no_reboot = 0;
213 int no_shutdown = 0;
214 int cursor_hide = 1;
215 int graphic_rotate = 0;
216 uint8_t irq0override = 1;
217 #ifndef _WIN32
218 int daemonize = 0;
219 #endif
220 const char *watchdog;
221 const char *option_rom[MAX_OPTION_ROMS];
222 int nb_option_roms;
223 int semihosting_enabled = 0;
224 int old_param = 0;
225 const char *qemu_name;
226 int alt_grab = 0;
227 int ctrl_grab = 0;
228 unsigned int nb_prom_envs = 0;
229 const char *prom_envs[MAX_PROM_ENVS];
230 int boot_menu;
231
232 int nb_numa_nodes;
233 uint64_t node_mem[MAX_NODES];
234 uint64_t node_cpumask[MAX_NODES];
235
236 static QEMUTimer *nographic_timer;
237
238 uint8_t qemu_uuid[16];
239
240 static QEMUBootSetHandler *boot_set_handler;
241 static void *boot_set_opaque;
242
243 int kvm_allowed = 0;
244 uint32_t xen_domid;
245 enum xen_mode xen_mode = XEN_EMULATE;
246
247 static int default_serial = 1;
248 static int default_parallel = 1;
249 static int default_virtcon = 1;
250 static int default_monitor = 1;
251 static int default_vga = 1;
252 static int default_floppy = 1;
253 static int default_cdrom = 1;
254 static int default_sdcard = 1;
255
256 static struct {
257 const char *driver;
258 int *flag;
259 } default_list[] = {
260 { .driver = "isa-serial", .flag = &default_serial },
261 { .driver = "isa-parallel", .flag = &default_parallel },
262 { .driver = "isa-fdc", .flag = &default_floppy },
263 { .driver = "ide-drive", .flag = &default_cdrom },
264 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
265 { .driver = "virtio-serial-s390", .flag = &default_virtcon },
266 { .driver = "virtio-serial", .flag = &default_virtcon },
267 { .driver = "VGA", .flag = &default_vga },
268 { .driver = "cirrus-vga", .flag = &default_vga },
269 { .driver = "vmware-svga", .flag = &default_vga },
270 };
271
272 static int default_driver_check(QemuOpts *opts, void *opaque)
273 {
274 const char *driver = qemu_opt_get(opts, "driver");
275 int i;
276
277 if (!driver)
278 return 0;
279 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
280 if (strcmp(default_list[i].driver, driver) != 0)
281 continue;
282 *(default_list[i].flag) = 0;
283 }
284 return 0;
285 }
286
287 /***********************************************************/
288
289 static void set_proc_name(const char *s)
290 {
291 #if defined(__linux__) && defined(PR_SET_NAME)
292 char name[16];
293 if (!s)
294 return;
295 name[sizeof(name) - 1] = 0;
296 strncpy(name, s, sizeof(name));
297 /* Could rewrite argv[0] too, but that's a bit more complicated.
298 This simple way is enough for `top'. */
299 prctl(PR_SET_NAME, name);
300 #endif
301 }
302
303 /***********************************************************/
304 /* real time host monotonic timer */
305
306 /* compute with 96 bit intermediate result: (a*b)/c */
307 uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
308 {
309 union {
310 uint64_t ll;
311 struct {
312 #ifdef HOST_WORDS_BIGENDIAN
313 uint32_t high, low;
314 #else
315 uint32_t low, high;
316 #endif
317 } l;
318 } u, res;
319 uint64_t rl, rh;
320
321 u.ll = a;
322 rl = (uint64_t)u.l.low * (uint64_t)b;
323 rh = (uint64_t)u.l.high * (uint64_t)b;
324 rh += (rl >> 32);
325 res.l.high = rh / c;
326 res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
327 return res.ll;
328 }
329
330 /***********************************************************/
331 /* host time/date access */
332 void qemu_get_timedate(struct tm *tm, int offset)
333 {
334 time_t ti;
335 struct tm *ret;
336
337 time(&ti);
338 ti += offset;
339 if (rtc_date_offset == -1) {
340 if (rtc_utc)
341 ret = gmtime(&ti);
342 else
343 ret = localtime(&ti);
344 } else {
345 ti -= rtc_date_offset;
346 ret = gmtime(&ti);
347 }
348
349 memcpy(tm, ret, sizeof(struct tm));
350 }
351
352 int qemu_timedate_diff(struct tm *tm)
353 {
354 time_t seconds;
355
356 if (rtc_date_offset == -1)
357 if (rtc_utc)
358 seconds = mktimegm(tm);
359 else
360 seconds = mktime(tm);
361 else
362 seconds = mktimegm(tm) + rtc_date_offset;
363
364 return seconds - time(NULL);
365 }
366
367 void rtc_change_mon_event(struct tm *tm)
368 {
369 QObject *data;
370
371 data = qobject_from_jsonf("{ 'offset': %d }", qemu_timedate_diff(tm));
372 monitor_protocol_event(QEVENT_RTC_CHANGE, data);
373 qobject_decref(data);
374 }
375
376 static void configure_rtc_date_offset(const char *startdate, int legacy)
377 {
378 time_t rtc_start_date;
379 struct tm tm;
380
381 if (!strcmp(startdate, "now") && legacy) {
382 rtc_date_offset = -1;
383 } else {
384 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
385 &tm.tm_year,
386 &tm.tm_mon,
387 &tm.tm_mday,
388 &tm.tm_hour,
389 &tm.tm_min,
390 &tm.tm_sec) == 6) {
391 /* OK */
392 } else if (sscanf(startdate, "%d-%d-%d",
393 &tm.tm_year,
394 &tm.tm_mon,
395 &tm.tm_mday) == 3) {
396 tm.tm_hour = 0;
397 tm.tm_min = 0;
398 tm.tm_sec = 0;
399 } else {
400 goto date_fail;
401 }
402 tm.tm_year -= 1900;
403 tm.tm_mon--;
404 rtc_start_date = mktimegm(&tm);
405 if (rtc_start_date == -1) {
406 date_fail:
407 fprintf(stderr, "Invalid date format. Valid formats are:\n"
408 "'2006-06-17T16:01:21' or '2006-06-17'\n");
409 exit(1);
410 }
411 rtc_date_offset = time(NULL) - rtc_start_date;
412 }
413 }
414
415 static void configure_rtc(QemuOpts *opts)
416 {
417 const char *value;
418
419 value = qemu_opt_get(opts, "base");
420 if (value) {
421 if (!strcmp(value, "utc")) {
422 rtc_utc = 1;
423 } else if (!strcmp(value, "localtime")) {
424 rtc_utc = 0;
425 } else {
426 configure_rtc_date_offset(value, 0);
427 }
428 }
429 value = qemu_opt_get(opts, "clock");
430 if (value) {
431 if (!strcmp(value, "host")) {
432 rtc_clock = host_clock;
433 } else if (!strcmp(value, "vm")) {
434 rtc_clock = vm_clock;
435 } else {
436 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
437 exit(1);
438 }
439 }
440 value = qemu_opt_get(opts, "driftfix");
441 if (value) {
442 if (!strcmp(value, "slew")) {
443 rtc_td_hack = 1;
444 } else if (!strcmp(value, "none")) {
445 rtc_td_hack = 0;
446 } else {
447 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
448 exit(1);
449 }
450 }
451 }
452
453 /***********************************************************/
454 /* Bluetooth support */
455 static int nb_hcis;
456 static int cur_hci;
457 static struct HCIInfo *hci_table[MAX_NICS];
458
459 static struct bt_vlan_s {
460 struct bt_scatternet_s net;
461 int id;
462 struct bt_vlan_s *next;
463 } *first_bt_vlan;
464
465 /* find or alloc a new bluetooth "VLAN" */
466 static struct bt_scatternet_s *qemu_find_bt_vlan(int id)
467 {
468 struct bt_vlan_s **pvlan, *vlan;
469 for (vlan = first_bt_vlan; vlan != NULL; vlan = vlan->next) {
470 if (vlan->id == id)
471 return &vlan->net;
472 }
473 vlan = qemu_mallocz(sizeof(struct bt_vlan_s));
474 vlan->id = id;
475 pvlan = &first_bt_vlan;
476 while (*pvlan != NULL)
477 pvlan = &(*pvlan)->next;
478 *pvlan = vlan;
479 return &vlan->net;
480 }
481
482 static void null_hci_send(struct HCIInfo *hci, const uint8_t *data, int len)
483 {
484 }
485
486 static int null_hci_addr_set(struct HCIInfo *hci, const uint8_t *bd_addr)
487 {
488 return -ENOTSUP;
489 }
490
491 static struct HCIInfo null_hci = {
492 .cmd_send = null_hci_send,
493 .sco_send = null_hci_send,
494 .acl_send = null_hci_send,
495 .bdaddr_set = null_hci_addr_set,
496 };
497
498 struct HCIInfo *qemu_next_hci(void)
499 {
500 if (cur_hci == nb_hcis)
501 return &null_hci;
502
503 return hci_table[cur_hci++];
504 }
505
506 static struct HCIInfo *hci_init(const char *str)
507 {
508 char *endp;
509 struct bt_scatternet_s *vlan = 0;
510
511 if (!strcmp(str, "null"))
512 /* null */
513 return &null_hci;
514 else if (!strncmp(str, "host", 4) && (str[4] == '\0' || str[4] == ':'))
515 /* host[:hciN] */
516 return bt_host_hci(str[4] ? str + 5 : "hci0");
517 else if (!strncmp(str, "hci", 3)) {
518 /* hci[,vlan=n] */
519 if (str[3]) {
520 if (!strncmp(str + 3, ",vlan=", 6)) {
521 vlan = qemu_find_bt_vlan(strtol(str + 9, &endp, 0));
522 if (*endp)
523 vlan = 0;
524 }
525 } else
526 vlan = qemu_find_bt_vlan(0);
527 if (vlan)
528 return bt_new_hci(vlan);
529 }
530
531 fprintf(stderr, "qemu: Unknown bluetooth HCI `%s'.\n", str);
532
533 return 0;
534 }
535
536 static int bt_hci_parse(const char *str)
537 {
538 struct HCIInfo *hci;
539 bdaddr_t bdaddr;
540
541 if (nb_hcis >= MAX_NICS) {
542 fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
543 return -1;
544 }
545
546 hci = hci_init(str);
547 if (!hci)
548 return -1;
549
550 bdaddr.b[0] = 0x52;
551 bdaddr.b[1] = 0x54;
552 bdaddr.b[2] = 0x00;
553 bdaddr.b[3] = 0x12;
554 bdaddr.b[4] = 0x34;
555 bdaddr.b[5] = 0x56 + nb_hcis;
556 hci->bdaddr_set(hci, bdaddr.b);
557
558 hci_table[nb_hcis++] = hci;
559
560 return 0;
561 }
562
563 static void bt_vhci_add(int vlan_id)
564 {
565 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
566
567 if (!vlan->slave)
568 fprintf(stderr, "qemu: warning: adding a VHCI to "
569 "an empty scatternet %i\n", vlan_id);
570
571 bt_vhci_init(bt_new_hci(vlan));
572 }
573
574 static struct bt_device_s *bt_device_add(const char *opt)
575 {
576 struct bt_scatternet_s *vlan;
577 int vlan_id = 0;
578 char *endp = strstr(opt, ",vlan=");
579 int len = (endp ? endp - opt : strlen(opt)) + 1;
580 char devname[10];
581
582 pstrcpy(devname, MIN(sizeof(devname), len), opt);
583
584 if (endp) {
585 vlan_id = strtol(endp + 6, &endp, 0);
586 if (*endp) {
587 fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
588 return 0;
589 }
590 }
591
592 vlan = qemu_find_bt_vlan(vlan_id);
593
594 if (!vlan->slave)
595 fprintf(stderr, "qemu: warning: adding a slave device to "
596 "an empty scatternet %i\n", vlan_id);
597
598 if (!strcmp(devname, "keyboard"))
599 return bt_keyboard_init(vlan);
600
601 fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
602 return 0;
603 }
604
605 static int bt_parse(const char *opt)
606 {
607 const char *endp, *p;
608 int vlan;
609
610 if (strstart(opt, "hci", &endp)) {
611 if (!*endp || *endp == ',') {
612 if (*endp)
613 if (!strstart(endp, ",vlan=", 0))
614 opt = endp + 1;
615
616 return bt_hci_parse(opt);
617 }
618 } else if (strstart(opt, "vhci", &endp)) {
619 if (!*endp || *endp == ',') {
620 if (*endp) {
621 if (strstart(endp, ",vlan=", &p)) {
622 vlan = strtol(p, (char **) &endp, 0);
623 if (*endp) {
624 fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
625 return 1;
626 }
627 } else {
628 fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1);
629 return 1;
630 }
631 } else
632 vlan = 0;
633
634 bt_vhci_add(vlan);
635 return 0;
636 }
637 } else if (strstart(opt, "device:", &endp))
638 return !bt_device_add(endp);
639
640 fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
641 return 1;
642 }
643
644 /***********************************************************/
645 /* QEMU Block devices */
646
647 #define HD_ALIAS "index=%d,media=disk"
648 #define CDROM_ALIAS "index=2,media=cdrom"
649 #define FD_ALIAS "index=%d,if=floppy"
650 #define PFLASH_ALIAS "if=pflash"
651 #define MTD_ALIAS "if=mtd"
652 #define SD_ALIAS "index=0,if=sd"
653
654 QemuOpts *drive_add(const char *file, const char *fmt, ...)
655 {
656 va_list ap;
657 char optstr[1024];
658 QemuOpts *opts;
659
660 va_start(ap, fmt);
661 vsnprintf(optstr, sizeof(optstr), fmt, ap);
662 va_end(ap);
663
664 opts = qemu_opts_parse(&qemu_drive_opts, optstr, 0);
665 if (!opts) {
666 return NULL;
667 }
668 if (file)
669 qemu_opt_set(opts, "file", file);
670 return opts;
671 }
672
673 DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit)
674 {
675 DriveInfo *dinfo;
676
677 /* seek interface, bus and unit */
678
679 QTAILQ_FOREACH(dinfo, &drives, next) {
680 if (dinfo->type == type &&
681 dinfo->bus == bus &&
682 dinfo->unit == unit)
683 return dinfo;
684 }
685
686 return NULL;
687 }
688
689 DriveInfo *drive_get_by_id(const char *id)
690 {
691 DriveInfo *dinfo;
692
693 QTAILQ_FOREACH(dinfo, &drives, next) {
694 if (strcmp(id, dinfo->id))
695 continue;
696 return dinfo;
697 }
698 return NULL;
699 }
700
701 int drive_get_max_bus(BlockInterfaceType type)
702 {
703 int max_bus;
704 DriveInfo *dinfo;
705
706 max_bus = -1;
707 QTAILQ_FOREACH(dinfo, &drives, next) {
708 if(dinfo->type == type &&
709 dinfo->bus > max_bus)
710 max_bus = dinfo->bus;
711 }
712 return max_bus;
713 }
714
715 const char *drive_get_serial(BlockDriverState *bdrv)
716 {
717 DriveInfo *dinfo;
718
719 QTAILQ_FOREACH(dinfo, &drives, next) {
720 if (dinfo->bdrv == bdrv)
721 return dinfo->serial;
722 }
723
724 return "\0";
725 }
726
727 BlockInterfaceErrorAction drive_get_on_error(
728 BlockDriverState *bdrv, int is_read)
729 {
730 DriveInfo *dinfo;
731
732 QTAILQ_FOREACH(dinfo, &drives, next) {
733 if (dinfo->bdrv == bdrv)
734 return is_read ? dinfo->on_read_error : dinfo->on_write_error;
735 }
736
737 return is_read ? BLOCK_ERR_REPORT : BLOCK_ERR_STOP_ENOSPC;
738 }
739
740 static void bdrv_format_print(void *opaque, const char *name)
741 {
742 fprintf(stderr, " %s", name);
743 }
744
745 void drive_uninit(DriveInfo *dinfo)
746 {
747 qemu_opts_del(dinfo->opts);
748 bdrv_delete(dinfo->bdrv);
749 QTAILQ_REMOVE(&drives, dinfo, next);
750 qemu_free(dinfo);
751 }
752
753 static int parse_block_error_action(const char *buf, int is_read)
754 {
755 if (!strcmp(buf, "ignore")) {
756 return BLOCK_ERR_IGNORE;
757 } else if (!is_read && !strcmp(buf, "enospc")) {
758 return BLOCK_ERR_STOP_ENOSPC;
759 } else if (!strcmp(buf, "stop")) {
760 return BLOCK_ERR_STOP_ANY;
761 } else if (!strcmp(buf, "report")) {
762 return BLOCK_ERR_REPORT;
763 } else {
764 fprintf(stderr, "qemu: '%s' invalid %s error action\n",
765 buf, is_read ? "read" : "write");
766 return -1;
767 }
768 }
769
770 DriveInfo *drive_init(QemuOpts *opts, void *opaque,
771 int *fatal_error)
772 {
773 const char *buf;
774 const char *file = NULL;
775 char devname[128];
776 const char *serial;
777 const char *mediastr = "";
778 BlockInterfaceType type;
779 enum { MEDIA_DISK, MEDIA_CDROM } media;
780 int bus_id, unit_id;
781 int cyls, heads, secs, translation;
782 BlockDriver *drv = NULL;
783 QEMUMachine *machine = opaque;
784 int max_devs;
785 int index;
786 int ro = 0;
787 int bdrv_flags = 0;
788 int on_read_error, on_write_error;
789 const char *devaddr;
790 DriveInfo *dinfo;
791 int snapshot = 0;
792 int ret;
793
794 *fatal_error = 1;
795
796 translation = BIOS_ATA_TRANSLATION_AUTO;
797
798 if (machine && machine->use_scsi) {
799 type = IF_SCSI;
800 max_devs = MAX_SCSI_DEVS;
801 pstrcpy(devname, sizeof(devname), "scsi");
802 } else {
803 type = IF_IDE;
804 max_devs = MAX_IDE_DEVS;
805 pstrcpy(devname, sizeof(devname), "ide");
806 }
807 media = MEDIA_DISK;
808
809 /* extract parameters */
810 bus_id = qemu_opt_get_number(opts, "bus", 0);
811 unit_id = qemu_opt_get_number(opts, "unit", -1);
812 index = qemu_opt_get_number(opts, "index", -1);
813
814 cyls = qemu_opt_get_number(opts, "cyls", 0);
815 heads = qemu_opt_get_number(opts, "heads", 0);
816 secs = qemu_opt_get_number(opts, "secs", 0);
817
818 snapshot = qemu_opt_get_bool(opts, "snapshot", 0);
819 ro = qemu_opt_get_bool(opts, "readonly", 0);
820
821 file = qemu_opt_get(opts, "file");
822 serial = qemu_opt_get(opts, "serial");
823
824 if ((buf = qemu_opt_get(opts, "if")) != NULL) {
825 pstrcpy(devname, sizeof(devname), buf);
826 if (!strcmp(buf, "ide")) {
827 type = IF_IDE;
828 max_devs = MAX_IDE_DEVS;
829 } else if (!strcmp(buf, "scsi")) {
830 type = IF_SCSI;
831 max_devs = MAX_SCSI_DEVS;
832 } else if (!strcmp(buf, "floppy")) {
833 type = IF_FLOPPY;
834 max_devs = 0;
835 } else if (!strcmp(buf, "pflash")) {
836 type = IF_PFLASH;
837 max_devs = 0;
838 } else if (!strcmp(buf, "mtd")) {
839 type = IF_MTD;
840 max_devs = 0;
841 } else if (!strcmp(buf, "sd")) {
842 type = IF_SD;
843 max_devs = 0;
844 } else if (!strcmp(buf, "virtio")) {
845 type = IF_VIRTIO;
846 max_devs = 0;
847 } else if (!strcmp(buf, "xen")) {
848 type = IF_XEN;
849 max_devs = 0;
850 } else if (!strcmp(buf, "none")) {
851 type = IF_NONE;
852 max_devs = 0;
853 } else {
854 fprintf(stderr, "qemu: unsupported bus type '%s'\n", buf);
855 return NULL;
856 }
857 }
858
859 if (cyls || heads || secs) {
860 if (cyls < 1 || (type == IF_IDE && cyls > 16383)) {
861 fprintf(stderr, "qemu: '%s' invalid physical cyls number\n", buf);
862 return NULL;
863 }
864 if (heads < 1 || (type == IF_IDE && heads > 16)) {
865 fprintf(stderr, "qemu: '%s' invalid physical heads number\n", buf);
866 return NULL;
867 }
868 if (secs < 1 || (type == IF_IDE && secs > 63)) {
869 fprintf(stderr, "qemu: '%s' invalid physical secs number\n", buf);
870 return NULL;
871 }
872 }
873
874 if ((buf = qemu_opt_get(opts, "trans")) != NULL) {
875 if (!cyls) {
876 fprintf(stderr,
877 "qemu: '%s' trans must be used with cyls,heads and secs\n",
878 buf);
879 return NULL;
880 }
881 if (!strcmp(buf, "none"))
882 translation = BIOS_ATA_TRANSLATION_NONE;
883 else if (!strcmp(buf, "lba"))
884 translation = BIOS_ATA_TRANSLATION_LBA;
885 else if (!strcmp(buf, "auto"))
886 translation = BIOS_ATA_TRANSLATION_AUTO;
887 else {
888 fprintf(stderr, "qemu: '%s' invalid translation type\n", buf);
889 return NULL;
890 }
891 }
892
893 if ((buf = qemu_opt_get(opts, "media")) != NULL) {
894 if (!strcmp(buf, "disk")) {
895 media = MEDIA_DISK;
896 } else if (!strcmp(buf, "cdrom")) {
897 if (cyls || secs || heads) {
898 fprintf(stderr,
899 "qemu: '%s' invalid physical CHS format\n", buf);
900 return NULL;
901 }
902 media = MEDIA_CDROM;
903 } else {
904 fprintf(stderr, "qemu: '%s' invalid media\n", buf);
905 return NULL;
906 }
907 }
908
909 if ((buf = qemu_opt_get(opts, "cache")) != NULL) {
910 if (!strcmp(buf, "off") || !strcmp(buf, "none")) {
911 bdrv_flags |= BDRV_O_NOCACHE;
912 } else if (!strcmp(buf, "writeback")) {
913 bdrv_flags |= BDRV_O_CACHE_WB;
914 } else if (!strcmp(buf, "unsafe")) {
915 bdrv_flags |= BDRV_O_CACHE_WB;
916 bdrv_flags |= BDRV_O_NO_FLUSH;
917 } else if (!strcmp(buf, "writethrough")) {
918 /* this is the default */
919 } else {
920 fprintf(stderr, "qemu: invalid cache option\n");
921 return NULL;
922 }
923 }
924
925 #ifdef CONFIG_LINUX_AIO
926 if ((buf = qemu_opt_get(opts, "aio")) != NULL) {
927 if (!strcmp(buf, "native")) {
928 bdrv_flags |= BDRV_O_NATIVE_AIO;
929 } else if (!strcmp(buf, "threads")) {
930 /* this is the default */
931 } else {
932 fprintf(stderr, "qemu: invalid aio option\n");
933 return NULL;
934 }
935 }
936 #endif
937
938 if ((buf = qemu_opt_get(opts, "format")) != NULL) {
939 if (strcmp(buf, "?") == 0) {
940 fprintf(stderr, "qemu: Supported formats:");
941 bdrv_iterate_format(bdrv_format_print, NULL);
942 fprintf(stderr, "\n");
943 return NULL;
944 }
945 drv = bdrv_find_whitelisted_format(buf);
946 if (!drv) {
947 fprintf(stderr, "qemu: '%s' invalid format\n", buf);
948 return NULL;
949 }
950 }
951
952 on_write_error = BLOCK_ERR_STOP_ENOSPC;
953 if ((buf = qemu_opt_get(opts, "werror")) != NULL) {
954 if (type != IF_IDE && type != IF_SCSI && type != IF_VIRTIO && type != IF_NONE) {
955 fprintf(stderr, "werror is no supported by this format\n");
956 return NULL;
957 }
958
959 on_write_error = parse_block_error_action(buf, 0);
960 if (on_write_error < 0) {
961 return NULL;
962 }
963 }
964
965 on_read_error = BLOCK_ERR_REPORT;
966 if ((buf = qemu_opt_get(opts, "rerror")) != NULL) {
967 if (type != IF_IDE && type != IF_VIRTIO && type != IF_NONE) {
968 fprintf(stderr, "rerror is no supported by this format\n");
969 return NULL;
970 }
971
972 on_read_error = parse_block_error_action(buf, 1);
973 if (on_read_error < 0) {
974 return NULL;
975 }
976 }
977
978 if ((devaddr = qemu_opt_get(opts, "addr")) != NULL) {
979 if (type != IF_VIRTIO) {
980 fprintf(stderr, "addr is not supported\n");
981 return NULL;
982 }
983 }
984
985 /* compute bus and unit according index */
986
987 if (index != -1) {
988 if (bus_id != 0 || unit_id != -1) {
989 fprintf(stderr,
990 "qemu: index cannot be used with bus and unit\n");
991 return NULL;
992 }
993 if (max_devs == 0)
994 {
995 unit_id = index;
996 bus_id = 0;
997 } else {
998 unit_id = index % max_devs;
999 bus_id = index / max_devs;
1000 }
1001 }
1002
1003 /* if user doesn't specify a unit_id,
1004 * try to find the first free
1005 */
1006
1007 if (unit_id == -1) {
1008 unit_id = 0;
1009 while (drive_get(type, bus_id, unit_id) != NULL) {
1010 unit_id++;
1011 if (max_devs && unit_id >= max_devs) {
1012 unit_id -= max_devs;
1013 bus_id++;
1014 }
1015 }
1016 }
1017
1018 /* check unit id */
1019
1020 if (max_devs && unit_id >= max_devs) {
1021 fprintf(stderr, "qemu: unit %d too big (max is %d)\n",
1022 unit_id, max_devs - 1);
1023 return NULL;
1024 }
1025
1026 /*
1027 * ignore multiple definitions
1028 */
1029
1030 if (drive_get(type, bus_id, unit_id) != NULL) {
1031 *fatal_error = 0;
1032 return NULL;
1033 }
1034
1035 /* init */
1036
1037 dinfo = qemu_mallocz(sizeof(*dinfo));
1038 if ((buf = qemu_opts_id(opts)) != NULL) {
1039 dinfo->id = qemu_strdup(buf);
1040 } else {
1041 /* no id supplied -> create one */
1042 dinfo->id = qemu_mallocz(32);
1043 if (type == IF_IDE || type == IF_SCSI)
1044 mediastr = (media == MEDIA_CDROM) ? "-cd" : "-hd";
1045 if (max_devs)
1046 snprintf(dinfo->id, 32, "%s%i%s%i",
1047 devname, bus_id, mediastr, unit_id);
1048 else
1049 snprintf(dinfo->id, 32, "%s%s%i",
1050 devname, mediastr, unit_id);
1051 }
1052 dinfo->bdrv = bdrv_new(dinfo->id);
1053 dinfo->devaddr = devaddr;
1054 dinfo->type = type;
1055 dinfo->bus = bus_id;
1056 dinfo->unit = unit_id;
1057 dinfo->on_read_error = on_read_error;
1058 dinfo->on_write_error = on_write_error;
1059 dinfo->opts = opts;
1060 if (serial)
1061 strncpy(dinfo->serial, serial, sizeof(serial));
1062 QTAILQ_INSERT_TAIL(&drives, dinfo, next);
1063
1064 switch(type) {
1065 case IF_IDE:
1066 case IF_SCSI:
1067 case IF_XEN:
1068 case IF_NONE:
1069 switch(media) {
1070 case MEDIA_DISK:
1071 if (cyls != 0) {
1072 bdrv_set_geometry_hint(dinfo->bdrv, cyls, heads, secs);
1073 bdrv_set_translation_hint(dinfo->bdrv, translation);
1074 }
1075 break;
1076 case MEDIA_CDROM:
1077 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_CDROM);
1078 break;
1079 }
1080 break;
1081 case IF_SD:
1082 /* FIXME: This isn't really a floppy, but it's a reasonable
1083 approximation. */
1084 case IF_FLOPPY:
1085 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_FLOPPY);
1086 break;
1087 case IF_PFLASH:
1088 case IF_MTD:
1089 break;
1090 case IF_VIRTIO:
1091 /* add virtio block device */
1092 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
1093 qemu_opt_set(opts, "driver", "virtio-blk-pci");
1094 qemu_opt_set(opts, "drive", dinfo->id);
1095 if (devaddr)
1096 qemu_opt_set(opts, "addr", devaddr);
1097 break;
1098 case IF_COUNT:
1099 abort();
1100 }
1101 if (!file) {
1102 *fatal_error = 0;
1103 return NULL;
1104 }
1105 if (snapshot) {
1106 /* always use cache=unsafe with snapshot */
1107 bdrv_flags &= ~BDRV_O_CACHE_MASK;
1108 bdrv_flags |= (BDRV_O_SNAPSHOT|BDRV_O_CACHE_WB|BDRV_O_NO_FLUSH);
1109 }
1110
1111 if (media == MEDIA_CDROM) {
1112 /* CDROM is fine for any interface, don't check. */
1113 ro = 1;
1114 } else if (ro == 1) {
1115 if (type != IF_SCSI && type != IF_VIRTIO && type != IF_FLOPPY && type != IF_NONE) {
1116 fprintf(stderr, "qemu: readonly flag not supported for drive with this interface\n");
1117 return NULL;
1118 }
1119 }
1120
1121 bdrv_flags |= ro ? 0 : BDRV_O_RDWR;
1122
1123 ret = bdrv_open(dinfo->bdrv, file, bdrv_flags, drv);
1124 if (ret < 0) {
1125 fprintf(stderr, "qemu: could not open disk image %s: %s\n",
1126 file, strerror(-ret));
1127 return NULL;
1128 }
1129
1130 if (bdrv_key_required(dinfo->bdrv))
1131 autostart = 0;
1132 *fatal_error = 0;
1133 return dinfo;
1134 }
1135
1136 static int drive_init_func(QemuOpts *opts, void *opaque)
1137 {
1138 QEMUMachine *machine = opaque;
1139 int fatal_error = 0;
1140
1141 if (drive_init(opts, machine, &fatal_error) == NULL) {
1142 if (fatal_error)
1143 return 1;
1144 }
1145 return 0;
1146 }
1147
1148 static int drive_enable_snapshot(QemuOpts *opts, void *opaque)
1149 {
1150 if (NULL == qemu_opt_get(opts, "snapshot")) {
1151 qemu_opt_set(opts, "snapshot", "on");
1152 }
1153 return 0;
1154 }
1155
1156 void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
1157 {
1158 boot_set_handler = func;
1159 boot_set_opaque = opaque;
1160 }
1161
1162 int qemu_boot_set(const char *boot_devices)
1163 {
1164 if (!boot_set_handler) {
1165 return -EINVAL;
1166 }
1167 return boot_set_handler(boot_set_opaque, boot_devices);
1168 }
1169
1170 static void validate_bootdevices(char *devices)
1171 {
1172 /* We just do some generic consistency checks */
1173 const char *p;
1174 int bitmap = 0;
1175
1176 for (p = devices; *p != '\0'; p++) {
1177 /* Allowed boot devices are:
1178 * a-b: floppy disk drives
1179 * c-f: IDE disk drives
1180 * g-m: machine implementation dependant drives
1181 * n-p: network devices
1182 * It's up to each machine implementation to check if the given boot
1183 * devices match the actual hardware implementation and firmware
1184 * features.
1185 */
1186 if (*p < 'a' || *p > 'p') {
1187 fprintf(stderr, "Invalid boot device '%c'\n", *p);
1188 exit(1);
1189 }
1190 if (bitmap & (1 << (*p - 'a'))) {
1191 fprintf(stderr, "Boot device '%c' was given twice\n", *p);
1192 exit(1);
1193 }
1194 bitmap |= 1 << (*p - 'a');
1195 }
1196 }
1197
1198 static void restore_boot_devices(void *opaque)
1199 {
1200 char *standard_boot_devices = opaque;
1201 static int first = 1;
1202
1203 /* Restore boot order and remove ourselves after the first boot */
1204 if (first) {
1205 first = 0;
1206 return;
1207 }
1208
1209 qemu_boot_set(standard_boot_devices);
1210
1211 qemu_unregister_reset(restore_boot_devices, standard_boot_devices);
1212 qemu_free(standard_boot_devices);
1213 }
1214
1215 static void numa_add(const char *optarg)
1216 {
1217 char option[128];
1218 char *endptr;
1219 unsigned long long value, endvalue;
1220 int nodenr;
1221
1222 optarg = get_opt_name(option, 128, optarg, ',') + 1;
1223 if (!strcmp(option, "node")) {
1224 if (get_param_value(option, 128, "nodeid", optarg) == 0) {
1225 nodenr = nb_numa_nodes;
1226 } else {
1227 nodenr = strtoull(option, NULL, 10);
1228 }
1229
1230 if (get_param_value(option, 128, "mem", optarg) == 0) {
1231 node_mem[nodenr] = 0;
1232 } else {
1233 value = strtoull(option, &endptr, 0);
1234 switch (*endptr) {
1235 case 0: case 'M': case 'm':
1236 value <<= 20;
1237 break;
1238 case 'G': case 'g':
1239 value <<= 30;
1240 break;
1241 }
1242 node_mem[nodenr] = value;
1243 }
1244 if (get_param_value(option, 128, "cpus", optarg) == 0) {
1245 node_cpumask[nodenr] = 0;
1246 } else {
1247 value = strtoull(option, &endptr, 10);
1248 if (value >= 64) {
1249 value = 63;
1250 fprintf(stderr, "only 64 CPUs in NUMA mode supported.\n");
1251 } else {
1252 if (*endptr == '-') {
1253 endvalue = strtoull(endptr+1, &endptr, 10);
1254 if (endvalue >= 63) {
1255 endvalue = 62;
1256 fprintf(stderr,
1257 "only 63 CPUs in NUMA mode supported.\n");
1258 }
1259 value = (2ULL << endvalue) - (1ULL << value);
1260 } else {
1261 value = 1ULL << value;
1262 }
1263 }
1264 node_cpumask[nodenr] = value;
1265 }
1266 nb_numa_nodes++;
1267 }
1268 return;
1269 }
1270
1271 static void smp_parse(const char *optarg)
1272 {
1273 int smp, sockets = 0, threads = 0, cores = 0;
1274 char *endptr;
1275 char option[128];
1276
1277 smp = strtoul(optarg, &endptr, 10);
1278 if (endptr != optarg) {
1279 if (*endptr == ',') {
1280 endptr++;
1281 }
1282 }
1283 if (get_param_value(option, 128, "sockets", endptr) != 0)
1284 sockets = strtoull(option, NULL, 10);
1285 if (get_param_value(option, 128, "cores", endptr) != 0)
1286 cores = strtoull(option, NULL, 10);
1287 if (get_param_value(option, 128, "threads", endptr) != 0)
1288 threads = strtoull(option, NULL, 10);
1289 if (get_param_value(option, 128, "maxcpus", endptr) != 0)
1290 max_cpus = strtoull(option, NULL, 10);
1291
1292 /* compute missing values, prefer sockets over cores over threads */
1293 if (smp == 0 || sockets == 0) {
1294 sockets = sockets > 0 ? sockets : 1;
1295 cores = cores > 0 ? cores : 1;
1296 threads = threads > 0 ? threads : 1;
1297 if (smp == 0) {
1298 smp = cores * threads * sockets;
1299 }
1300 } else {
1301 if (cores == 0) {
1302 threads = threads > 0 ? threads : 1;
1303 cores = smp / (sockets * threads);
1304 } else {
1305 if (sockets) {
1306 threads = smp / (cores * sockets);
1307 }
1308 }
1309 }
1310 smp_cpus = smp;
1311 smp_cores = cores > 0 ? cores : 1;
1312 smp_threads = threads > 0 ? threads : 1;
1313 if (max_cpus == 0)
1314 max_cpus = smp_cpus;
1315 }
1316
1317 /***********************************************************/
1318 /* USB devices */
1319
1320 static int usb_device_add(const char *devname)
1321 {
1322 const char *p;
1323 USBDevice *dev = NULL;
1324
1325 if (!usb_enabled)
1326 return -1;
1327
1328 /* drivers with .usbdevice_name entry in USBDeviceInfo */
1329 dev = usbdevice_create(devname);
1330 if (dev)
1331 goto done;
1332
1333 /* the other ones */
1334 if (strstart(devname, "host:", &p)) {
1335 dev = usb_host_device_open(p);
1336 } else if (!strcmp(devname, "bt") || strstart(devname, "bt:", &p)) {
1337 dev = usb_bt_init(devname[2] ? hci_init(p) :
1338 bt_new_hci(qemu_find_bt_vlan(0)));
1339 } else {
1340 return -1;
1341 }
1342 if (!dev)
1343 return -1;
1344
1345 done:
1346 return 0;
1347 }
1348
1349 static int usb_device_del(const char *devname)
1350 {
1351 int bus_num, addr;
1352 const char *p;
1353
1354 if (strstart(devname, "host:", &p))
1355 return usb_host_device_close(p);
1356
1357 if (!usb_enabled)
1358 return -1;
1359
1360 p = strchr(devname, '.');
1361 if (!p)
1362 return -1;
1363 bus_num = strtoul(devname, NULL, 0);
1364 addr = strtoul(p + 1, NULL, 0);
1365
1366 return usb_device_delete_addr(bus_num, addr);
1367 }
1368
1369 static int usb_parse(const char *cmdline)
1370 {
1371 int r;
1372 r = usb_device_add(cmdline);
1373 if (r < 0) {
1374 fprintf(stderr, "qemu: could not add USB device '%s'\n", cmdline);
1375 }
1376 return r;
1377 }
1378
1379 void do_usb_add(Monitor *mon, const QDict *qdict)
1380 {
1381 const char *devname = qdict_get_str(qdict, "devname");
1382 if (usb_device_add(devname) < 0) {
1383 error_report("could not add USB device '%s'", devname);
1384 }
1385 }
1386
1387 void do_usb_del(Monitor *mon, const QDict *qdict)
1388 {
1389 const char *devname = qdict_get_str(qdict, "devname");
1390 if (usb_device_del(devname) < 0) {
1391 error_report("could not delete USB device '%s'", devname);
1392 }
1393 }
1394
1395 /***********************************************************/
1396 /* PCMCIA/Cardbus */
1397
1398 static struct pcmcia_socket_entry_s {
1399 PCMCIASocket *socket;
1400 struct pcmcia_socket_entry_s *next;
1401 } *pcmcia_sockets = 0;
1402
1403 void pcmcia_socket_register(PCMCIASocket *socket)
1404 {
1405 struct pcmcia_socket_entry_s *entry;
1406
1407 entry = qemu_malloc(sizeof(struct pcmcia_socket_entry_s));
1408 entry->socket = socket;
1409 entry->next = pcmcia_sockets;
1410 pcmcia_sockets = entry;
1411 }
1412
1413 void pcmcia_socket_unregister(PCMCIASocket *socket)
1414 {
1415 struct pcmcia_socket_entry_s *entry, **ptr;
1416
1417 ptr = &pcmcia_sockets;
1418 for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
1419 if (entry->socket == socket) {
1420 *ptr = entry->next;
1421 qemu_free(entry);
1422 }
1423 }
1424
1425 void pcmcia_info(Monitor *mon)
1426 {
1427 struct pcmcia_socket_entry_s *iter;
1428
1429 if (!pcmcia_sockets)
1430 monitor_printf(mon, "No PCMCIA sockets\n");
1431
1432 for (iter = pcmcia_sockets; iter; iter = iter->next)
1433 monitor_printf(mon, "%s: %s\n", iter->socket->slot_string,
1434 iter->socket->attached ? iter->socket->card_string :
1435 "Empty");
1436 }
1437
1438 /***********************************************************/
1439 /* I/O handling */
1440
1441 typedef struct IOHandlerRecord {
1442 int fd;
1443 IOCanReadHandler *fd_read_poll;
1444 IOHandler *fd_read;
1445 IOHandler *fd_write;
1446 int deleted;
1447 void *opaque;
1448 /* temporary data */
1449 struct pollfd *ufd;
1450 QLIST_ENTRY(IOHandlerRecord) next;
1451 } IOHandlerRecord;
1452
1453 static QLIST_HEAD(, IOHandlerRecord) io_handlers =
1454 QLIST_HEAD_INITIALIZER(io_handlers);
1455
1456
1457 /* XXX: fd_read_poll should be suppressed, but an API change is
1458 necessary in the character devices to suppress fd_can_read(). */
1459 int qemu_set_fd_handler2(int fd,
1460 IOCanReadHandler *fd_read_poll,
1461 IOHandler *fd_read,
1462 IOHandler *fd_write,
1463 void *opaque)
1464 {
1465 IOHandlerRecord *ioh;
1466
1467 if (!fd_read && !fd_write) {
1468 QLIST_FOREACH(ioh, &io_handlers, next) {
1469 if (ioh->fd == fd) {
1470 ioh->deleted = 1;
1471 break;
1472 }
1473 }
1474 } else {
1475 QLIST_FOREACH(ioh, &io_handlers, next) {
1476 if (ioh->fd == fd)
1477 goto found;
1478 }
1479 ioh = qemu_mallocz(sizeof(IOHandlerRecord));
1480 QLIST_INSERT_HEAD(&io_handlers, ioh, next);
1481 found:
1482 ioh->fd = fd;
1483 ioh->fd_read_poll = fd_read_poll;
1484 ioh->fd_read = fd_read;
1485 ioh->fd_write = fd_write;
1486 ioh->opaque = opaque;
1487 ioh->deleted = 0;
1488 }
1489 return 0;
1490 }
1491
1492 int qemu_set_fd_handler(int fd,
1493 IOHandler *fd_read,
1494 IOHandler *fd_write,
1495 void *opaque)
1496 {
1497 return qemu_set_fd_handler2(fd, NULL, fd_read, fd_write, opaque);
1498 }
1499
1500 #ifdef _WIN32
1501 /***********************************************************/
1502 /* Polling handling */
1503
1504 typedef struct PollingEntry {
1505 PollingFunc *func;
1506 void *opaque;
1507 struct PollingEntry *next;
1508 } PollingEntry;
1509
1510 static PollingEntry *first_polling_entry;
1511
1512 int qemu_add_polling_cb(PollingFunc *func, void *opaque)
1513 {
1514 PollingEntry **ppe, *pe;
1515 pe = qemu_mallocz(sizeof(PollingEntry));
1516 pe->func = func;
1517 pe->opaque = opaque;
1518 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next);
1519 *ppe = pe;
1520 return 0;
1521 }
1522
1523 void qemu_del_polling_cb(PollingFunc *func, void *opaque)
1524 {
1525 PollingEntry **ppe, *pe;
1526 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next) {
1527 pe = *ppe;
1528 if (pe->func == func && pe->opaque == opaque) {
1529 *ppe = pe->next;
1530 qemu_free(pe);
1531 break;
1532 }
1533 }
1534 }
1535
1536 /***********************************************************/
1537 /* Wait objects support */
1538 typedef struct WaitObjects {
1539 int num;
1540 HANDLE events[MAXIMUM_WAIT_OBJECTS + 1];
1541 WaitObjectFunc *func[MAXIMUM_WAIT_OBJECTS + 1];
1542 void *opaque[MAXIMUM_WAIT_OBJECTS + 1];
1543 } WaitObjects;
1544
1545 static WaitObjects wait_objects = {0};
1546
1547 int qemu_add_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
1548 {
1549 WaitObjects *w = &wait_objects;
1550
1551 if (w->num >= MAXIMUM_WAIT_OBJECTS)
1552 return -1;
1553 w->events[w->num] = handle;
1554 w->func[w->num] = func;
1555 w->opaque[w->num] = opaque;
1556 w->num++;
1557 return 0;
1558 }
1559
1560 void qemu_del_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
1561 {
1562 int i, found;
1563 WaitObjects *w = &wait_objects;
1564
1565 found = 0;
1566 for (i = 0; i < w->num; i++) {
1567 if (w->events[i] == handle)
1568 found = 1;
1569 if (found) {
1570 w->events[i] = w->events[i + 1];
1571 w->func[i] = w->func[i + 1];
1572 w->opaque[i] = w->opaque[i + 1];
1573 }
1574 }
1575 if (found)
1576 w->num--;
1577 }
1578 #endif
1579
1580 /***********************************************************/
1581 /* machine registration */
1582
1583 static QEMUMachine *first_machine = NULL;
1584 QEMUMachine *current_machine = NULL;
1585
1586 int qemu_register_machine(QEMUMachine *m)
1587 {
1588 QEMUMachine **pm;
1589 pm = &first_machine;
1590 while (*pm != NULL)
1591 pm = &(*pm)->next;
1592 m->next = NULL;
1593 *pm = m;
1594 return 0;
1595 }
1596
1597 static QEMUMachine *find_machine(const char *name)
1598 {
1599 QEMUMachine *m;
1600
1601 for(m = first_machine; m != NULL; m = m->next) {
1602 if (!strcmp(m->name, name))
1603 return m;
1604 if (m->alias && !strcmp(m->alias, name))
1605 return m;
1606 }
1607 return NULL;
1608 }
1609
1610 static QEMUMachine *find_default_machine(void)
1611 {
1612 QEMUMachine *m;
1613
1614 for(m = first_machine; m != NULL; m = m->next) {
1615 if (m->is_default) {
1616 return m;
1617 }
1618 }
1619 return NULL;
1620 }
1621
1622 /***********************************************************/
1623 /* main execution loop */
1624
1625 static void gui_update(void *opaque)
1626 {
1627 uint64_t interval = GUI_REFRESH_INTERVAL;
1628 DisplayState *ds = opaque;
1629 DisplayChangeListener *dcl = ds->listeners;
1630
1631 qemu_flush_coalesced_mmio_buffer();
1632 dpy_refresh(ds);
1633
1634 while (dcl != NULL) {
1635 if (dcl->gui_timer_interval &&
1636 dcl->gui_timer_interval < interval)
1637 interval = dcl->gui_timer_interval;
1638 dcl = dcl->next;
1639 }
1640 qemu_mod_timer(ds->gui_timer, interval + qemu_get_clock(rt_clock));
1641 }
1642
1643 static void nographic_update(void *opaque)
1644 {
1645 uint64_t interval = GUI_REFRESH_INTERVAL;
1646
1647 qemu_flush_coalesced_mmio_buffer();
1648 qemu_mod_timer(nographic_timer, interval + qemu_get_clock(rt_clock));
1649 }
1650
1651 struct vm_change_state_entry {
1652 VMChangeStateHandler *cb;
1653 void *opaque;
1654 QLIST_ENTRY (vm_change_state_entry) entries;
1655 };
1656
1657 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1658
1659 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1660 void *opaque)
1661 {
1662 VMChangeStateEntry *e;
1663
1664 e = qemu_mallocz(sizeof (*e));
1665
1666 e->cb = cb;
1667 e->opaque = opaque;
1668 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1669 return e;
1670 }
1671
1672 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1673 {
1674 QLIST_REMOVE (e, entries);
1675 qemu_free (e);
1676 }
1677
1678 void vm_state_notify(int running, int reason)
1679 {
1680 VMChangeStateEntry *e;
1681
1682 for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
1683 e->cb(e->opaque, running, reason);
1684 }
1685 }
1686
1687 void vm_start(void)
1688 {
1689 if (!vm_running) {
1690 cpu_enable_ticks();
1691 vm_running = 1;
1692 vm_state_notify(1, 0);
1693 resume_all_vcpus();
1694 monitor_protocol_event(QEVENT_RESUME, NULL);
1695 }
1696 }
1697
1698 /* reset/shutdown handler */
1699
1700 typedef struct QEMUResetEntry {
1701 QTAILQ_ENTRY(QEMUResetEntry) entry;
1702 QEMUResetHandler *func;
1703 void *opaque;
1704 } QEMUResetEntry;
1705
1706 static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
1707 QTAILQ_HEAD_INITIALIZER(reset_handlers);
1708 static int reset_requested;
1709 static int shutdown_requested;
1710 static int powerdown_requested;
1711 int debug_requested;
1712 int vmstop_requested;
1713
1714 int qemu_shutdown_requested(void)
1715 {
1716 int r = shutdown_requested;
1717 shutdown_requested = 0;
1718 return r;
1719 }
1720
1721 int qemu_reset_requested(void)
1722 {
1723 int r = reset_requested;
1724 reset_requested = 0;
1725 return r;
1726 }
1727
1728 int qemu_powerdown_requested(void)
1729 {
1730 int r = powerdown_requested;
1731 powerdown_requested = 0;
1732 return r;
1733 }
1734
1735 static int qemu_debug_requested(void)
1736 {
1737 int r = debug_requested;
1738 debug_requested = 0;
1739 return r;
1740 }
1741
1742 static int qemu_vmstop_requested(void)
1743 {
1744 int r = vmstop_requested;
1745 vmstop_requested = 0;
1746 return r;
1747 }
1748
1749 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
1750 {
1751 QEMUResetEntry *re = qemu_mallocz(sizeof(QEMUResetEntry));
1752
1753 re->func = func;
1754 re->opaque = opaque;
1755 QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
1756 }
1757
1758 void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
1759 {
1760 QEMUResetEntry *re;
1761
1762 QTAILQ_FOREACH(re, &reset_handlers, entry) {
1763 if (re->func == func && re->opaque == opaque) {
1764 QTAILQ_REMOVE(&reset_handlers, re, entry);
1765 qemu_free(re);
1766 return;
1767 }
1768 }
1769 }
1770
1771 void qemu_system_reset(void)
1772 {
1773 QEMUResetEntry *re, *nre;
1774
1775 /* reset all devices */
1776 QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
1777 re->func(re->opaque);
1778 }
1779 monitor_protocol_event(QEVENT_RESET, NULL);
1780 cpu_synchronize_all_post_reset();
1781 }
1782
1783 void qemu_system_reset_request(void)
1784 {
1785 if (no_reboot) {
1786 shutdown_requested = 1;
1787 } else {
1788 reset_requested = 1;
1789 }
1790 qemu_notify_event();
1791 }
1792
1793 void qemu_system_shutdown_request(void)
1794 {
1795 shutdown_requested = 1;
1796 qemu_notify_event();
1797 }
1798
1799 void qemu_system_powerdown_request(void)
1800 {
1801 powerdown_requested = 1;
1802 qemu_notify_event();
1803 }
1804
1805 #ifdef _WIN32
1806 static void host_main_loop_wait(int *timeout)
1807 {
1808 int ret, ret2, i;
1809 PollingEntry *pe;
1810
1811
1812 /* XXX: need to suppress polling by better using win32 events */
1813 ret = 0;
1814 for(pe = first_polling_entry; pe != NULL; pe = pe->next) {
1815 ret |= pe->func(pe->opaque);
1816 }
1817 if (ret == 0) {
1818 int err;
1819 WaitObjects *w = &wait_objects;
1820
1821 ret = WaitForMultipleObjects(w->num, w->events, FALSE, *timeout);
1822 if (WAIT_OBJECT_0 + 0 <= ret && ret <= WAIT_OBJECT_0 + w->num - 1) {
1823 if (w->func[ret - WAIT_OBJECT_0])
1824 w->func[ret - WAIT_OBJECT_0](w->opaque[ret - WAIT_OBJECT_0]);
1825
1826 /* Check for additional signaled events */
1827 for(i = (ret - WAIT_OBJECT_0 + 1); i < w->num; i++) {
1828
1829 /* Check if event is signaled */
1830 ret2 = WaitForSingleObject(w->events[i], 0);
1831 if(ret2 == WAIT_OBJECT_0) {
1832 if (w->func[i])
1833 w->func[i](w->opaque[i]);
1834 } else if (ret2 == WAIT_TIMEOUT) {
1835 } else {
1836 err = GetLastError();
1837 fprintf(stderr, "WaitForSingleObject error %d %d\n", i, err);
1838 }
1839 }
1840 } else if (ret == WAIT_TIMEOUT) {
1841 } else {
1842 err = GetLastError();
1843 fprintf(stderr, "WaitForMultipleObjects error %d %d\n", ret, err);
1844 }
1845 }
1846
1847 *timeout = 0;
1848 }
1849 #else
1850 static void host_main_loop_wait(int *timeout)
1851 {
1852 }
1853 #endif
1854
1855 void main_loop_wait(int nonblocking)
1856 {
1857 IOHandlerRecord *ioh;
1858 fd_set rfds, wfds, xfds;
1859 int ret, nfds;
1860 struct timeval tv;
1861 int timeout;
1862
1863 if (nonblocking)
1864 timeout = 0;
1865 else {
1866 timeout = qemu_calculate_timeout();
1867 qemu_bh_update_timeout(&timeout);
1868 }
1869
1870 host_main_loop_wait(&timeout);
1871
1872 /* poll any events */
1873 /* XXX: separate device handlers from system ones */
1874 nfds = -1;
1875 FD_ZERO(&rfds);
1876 FD_ZERO(&wfds);
1877 FD_ZERO(&xfds);
1878 QLIST_FOREACH(ioh, &io_handlers, next) {
1879 if (ioh->deleted)
1880 continue;
1881 if (ioh->fd_read &&
1882 (!ioh->fd_read_poll ||
1883 ioh->fd_read_poll(ioh->opaque) != 0)) {
1884 FD_SET(ioh->fd, &rfds);
1885 if (ioh->fd > nfds)
1886 nfds = ioh->fd;
1887 }
1888 if (ioh->fd_write) {
1889 FD_SET(ioh->fd, &wfds);
1890 if (ioh->fd > nfds)
1891 nfds = ioh->fd;
1892 }
1893 }
1894
1895 tv.tv_sec = timeout / 1000;
1896 tv.tv_usec = (timeout % 1000) * 1000;
1897
1898 slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
1899
1900 qemu_mutex_unlock_iothread();
1901 ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
1902 qemu_mutex_lock_iothread();
1903 if (ret > 0) {
1904 IOHandlerRecord *pioh;
1905
1906 QLIST_FOREACH_SAFE(ioh, &io_handlers, next, pioh) {
1907 if (ioh->deleted) {
1908 QLIST_REMOVE(ioh, next);
1909 qemu_free(ioh);
1910 continue;
1911 }
1912 if (ioh->fd_read && FD_ISSET(ioh->fd, &rfds)) {
1913 ioh->fd_read(ioh->opaque);
1914 }
1915 if (ioh->fd_write && FD_ISSET(ioh->fd, &wfds)) {
1916 ioh->fd_write(ioh->opaque);
1917 }
1918 }
1919 }
1920
1921 slirp_select_poll(&rfds, &wfds, &xfds, (ret < 0));
1922
1923 qemu_run_all_timers();
1924
1925 /* Check bottom-halves last in case any of the earlier events triggered
1926 them. */
1927 qemu_bh_poll();
1928
1929 }
1930
1931 static int vm_can_run(void)
1932 {
1933 if (powerdown_requested)
1934 return 0;
1935 if (reset_requested)
1936 return 0;
1937 if (shutdown_requested)
1938 return 0;
1939 if (debug_requested)
1940 return 0;
1941 return 1;
1942 }
1943
1944 qemu_irq qemu_system_powerdown;
1945
1946 static void main_loop(void)
1947 {
1948 int r;
1949
1950 qemu_main_loop_start();
1951
1952 for (;;) {
1953 do {
1954 bool nonblocking = false;
1955 #ifdef CONFIG_PROFILER
1956 int64_t ti;
1957 #endif
1958 #ifndef CONFIG_IOTHREAD
1959 nonblocking = tcg_cpu_exec();
1960 #endif
1961 #ifdef CONFIG_PROFILER
1962 ti = profile_getclock();
1963 #endif
1964 main_loop_wait(nonblocking);
1965 #ifdef CONFIG_PROFILER
1966 dev_time += profile_getclock() - ti;
1967 #endif
1968 } while (vm_can_run());
1969
1970 if ((r = qemu_debug_requested())) {
1971 vm_stop(r);
1972 }
1973 if (qemu_shutdown_requested()) {
1974 monitor_protocol_event(QEVENT_SHUTDOWN, NULL);
1975 if (no_shutdown) {
1976 vm_stop(0);
1977 no_shutdown = 0;
1978 } else
1979 break;
1980 }
1981 if (qemu_reset_requested()) {
1982 pause_all_vcpus();
1983 qemu_system_reset();
1984 resume_all_vcpus();
1985 }
1986 if (qemu_powerdown_requested()) {
1987 monitor_protocol_event(QEVENT_POWERDOWN, NULL);
1988 qemu_irq_raise(qemu_system_powerdown);
1989 }
1990 if ((r = qemu_vmstop_requested())) {
1991 vm_stop(r);
1992 }
1993 }
1994 bdrv_close_all();
1995 pause_all_vcpus();
1996 }
1997
1998 static void version(void)
1999 {
2000 printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
2001 }
2002
2003 static void help(int exitcode)
2004 {
2005 const char *options_help =
2006 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
2007 opt_help
2008 #define DEFHEADING(text) stringify(text) "\n"
2009 #include "qemu-options.h"
2010 #undef DEF
2011 #undef DEFHEADING
2012 #undef GEN_DOCS
2013 ;
2014 version();
2015 printf("usage: %s [options] [disk_image]\n"
2016 "\n"
2017 "'disk_image' is a raw hard disk image for IDE hard disk 0\n"
2018 "\n"
2019 "%s\n"
2020 "During emulation, the following keys are useful:\n"
2021 "ctrl-alt-f toggle full screen\n"
2022 "ctrl-alt-n switch to virtual console 'n'\n"
2023 "ctrl-alt toggle mouse and keyboard grab\n"
2024 "\n"
2025 "When using -nographic, press 'ctrl-a h' to get some help.\n",
2026 "qemu",
2027 options_help);
2028 exit(exitcode);
2029 }
2030
2031 #define HAS_ARG 0x0001
2032
2033 enum {
2034 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
2035 opt_enum,
2036 #define DEFHEADING(text)
2037 #include "qemu-options.h"
2038 #undef DEF
2039 #undef DEFHEADING
2040 #undef GEN_DOCS
2041 };
2042
2043 typedef struct QEMUOption {
2044 const char *name;
2045 int flags;
2046 int index;
2047 uint32_t arch_mask;
2048 } QEMUOption;
2049
2050 static const QEMUOption qemu_options[] = {
2051 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
2052 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
2053 { option, opt_arg, opt_enum, arch_mask },
2054 #define DEFHEADING(text)
2055 #include "qemu-options.h"
2056 #undef DEF
2057 #undef DEFHEADING
2058 #undef GEN_DOCS
2059 { NULL },
2060 };
2061 static void select_vgahw (const char *p)
2062 {
2063 const char *opts;
2064
2065 default_vga = 0;
2066 vga_interface_type = VGA_NONE;
2067 if (strstart(p, "std", &opts)) {
2068 vga_interface_type = VGA_STD;
2069 } else if (strstart(p, "cirrus", &opts)) {
2070 vga_interface_type = VGA_CIRRUS;
2071 } else if (strstart(p, "vmware", &opts)) {
2072 vga_interface_type = VGA_VMWARE;
2073 } else if (strstart(p, "xenfb", &opts)) {
2074 vga_interface_type = VGA_XENFB;
2075 } else if (!strstart(p, "none", &opts)) {
2076 invalid_vga:
2077 fprintf(stderr, "Unknown vga type: %s\n", p);
2078 exit(1);
2079 }
2080 while (*opts) {
2081 const char *nextopt;
2082
2083 if (strstart(opts, ",retrace=", &nextopt)) {
2084 opts = nextopt;
2085 if (strstart(opts, "dumb", &nextopt))
2086 vga_retrace_method = VGA_RETRACE_DUMB;
2087 else if (strstart(opts, "precise", &nextopt))
2088 vga_retrace_method = VGA_RETRACE_PRECISE;
2089 else goto invalid_vga;
2090 } else goto invalid_vga;
2091 opts = nextopt;
2092 }
2093 }
2094
2095 static int balloon_parse(const char *arg)
2096 {
2097 QemuOpts *opts;
2098
2099 if (strcmp(arg, "none") == 0) {
2100 return 0;
2101 }
2102
2103 if (!strncmp(arg, "virtio", 6)) {
2104 if (arg[6] == ',') {
2105 /* have params -> parse them */
2106 opts = qemu_opts_parse(&qemu_device_opts, arg+7, 0);
2107 if (!opts)
2108 return -1;
2109 } else {
2110 /* create empty opts */
2111 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2112 }
2113 qemu_opt_set(opts, "driver", "virtio-balloon-pci");
2114 return 0;
2115 }
2116
2117 return -1;
2118 }
2119
2120 #ifdef _WIN32
2121 static BOOL WINAPI qemu_ctrl_handler(DWORD type)
2122 {
2123 exit(STATUS_CONTROL_C_EXIT);
2124 return TRUE;
2125 }
2126 #endif
2127
2128 #ifndef _WIN32
2129
2130 static void termsig_handler(int signal)
2131 {
2132 qemu_system_shutdown_request();
2133 }
2134
2135 static void sigchld_handler(int signal)
2136 {
2137 waitpid(-1, NULL, WNOHANG);
2138 }
2139
2140 static void sighandler_setup(void)
2141 {
2142 struct sigaction act;
2143
2144 memset(&act, 0, sizeof(act));
2145 act.sa_handler = termsig_handler;
2146 sigaction(SIGINT, &act, NULL);
2147 sigaction(SIGHUP, &act, NULL);
2148 sigaction(SIGTERM, &act, NULL);
2149
2150 act.sa_handler = sigchld_handler;
2151 act.sa_flags = SA_NOCLDSTOP;
2152 sigaction(SIGCHLD, &act, NULL);
2153 }
2154
2155 #endif
2156
2157 #ifdef _WIN32
2158 /* Look for support files in the same directory as the executable. */
2159 static char *find_datadir(const char *argv0)
2160 {
2161 char *p;
2162 char buf[MAX_PATH];
2163 DWORD len;
2164
2165 len = GetModuleFileName(NULL, buf, sizeof(buf) - 1);
2166 if (len == 0) {
2167 return NULL;
2168 }
2169
2170 buf[len] = 0;
2171 p = buf + len - 1;
2172 while (p != buf && *p != '\\')
2173 p--;
2174 *p = 0;
2175 if (access(buf, R_OK) == 0) {
2176 return qemu_strdup(buf);
2177 }
2178 return NULL;
2179 }
2180 #else /* !_WIN32 */
2181
2182 /* Find a likely location for support files using the location of the binary.
2183 For installed binaries this will be "$bindir/../share/qemu". When
2184 running from the build tree this will be "$bindir/../pc-bios". */
2185 #define SHARE_SUFFIX "/share/qemu"
2186 #define BUILD_SUFFIX "/pc-bios"
2187 static char *find_datadir(const char *argv0)
2188 {
2189 char *dir;
2190 char *p = NULL;
2191 char *res;
2192 char buf[PATH_MAX];
2193 size_t max_len;
2194
2195 #if defined(__linux__)
2196 {
2197 int len;
2198 len = readlink("/proc/self/exe", buf, sizeof(buf) - 1);
2199 if (len > 0) {
2200 buf[len] = 0;
2201 p = buf;
2202 }
2203 }
2204 #elif defined(__FreeBSD__)
2205 {
2206 static int mib[4] = {CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, -1};
2207 size_t len = sizeof(buf) - 1;
2208
2209 *buf = '\0';
2210 if (!sysctl(mib, sizeof(mib)/sizeof(*mib), buf, &len, NULL, 0) &&
2211 *buf) {
2212 buf[sizeof(buf) - 1] = '\0';
2213 p = buf;
2214 }
2215 }
2216 #endif
2217 /* If we don't have any way of figuring out the actual executable
2218 location then try argv[0]. */
2219 if (!p) {
2220 p = realpath(argv0, buf);
2221 if (!p) {
2222 return NULL;
2223 }
2224 }
2225 dir = dirname(p);
2226 dir = dirname(dir);
2227
2228 max_len = strlen(dir) +
2229 MAX(strlen(SHARE_SUFFIX), strlen(BUILD_SUFFIX)) + 1;
2230 res = qemu_mallocz(max_len);
2231 snprintf(res, max_len, "%s%s", dir, SHARE_SUFFIX);
2232 if (access(res, R_OK)) {
2233 snprintf(res, max_len, "%s%s", dir, BUILD_SUFFIX);
2234 if (access(res, R_OK)) {
2235 qemu_free(res);
2236 res = NULL;
2237 }
2238 }
2239
2240 return res;
2241 }
2242 #undef SHARE_SUFFIX
2243 #undef BUILD_SUFFIX
2244 #endif
2245
2246 char *qemu_find_file(int type, const char *name)
2247 {
2248 int len;
2249 const char *subdir;
2250 char *buf;
2251
2252 /* If name contains path separators then try it as a straight path. */
2253 if ((strchr(name, '/') || strchr(name, '\\'))
2254 && access(name, R_OK) == 0) {
2255 return qemu_strdup(name);
2256 }
2257 switch (type) {
2258 case QEMU_FILE_TYPE_BIOS:
2259 subdir = "";
2260 break;
2261 case QEMU_FILE_TYPE_KEYMAP:
2262 subdir = "keymaps/";
2263 break;
2264 default:
2265 abort();
2266 }
2267 len = strlen(data_dir) + strlen(name) + strlen(subdir) + 2;
2268 buf = qemu_mallocz(len);
2269 snprintf(buf, len, "%s/%s%s", data_dir, subdir, name);
2270 if (access(buf, R_OK)) {
2271 qemu_free(buf);
2272 return NULL;
2273 }
2274 return buf;
2275 }
2276
2277 static int device_help_func(QemuOpts *opts, void *opaque)
2278 {
2279 return qdev_device_help(opts);
2280 }
2281
2282 static int device_init_func(QemuOpts *opts, void *opaque)
2283 {
2284 DeviceState *dev;
2285
2286 dev = qdev_device_add(opts);
2287 if (!dev)
2288 return -1;
2289 return 0;
2290 }
2291
2292 static int chardev_init_func(QemuOpts *opts, void *opaque)
2293 {
2294 CharDriverState *chr;
2295
2296 chr = qemu_chr_open_opts(opts, NULL);
2297 if (!chr)
2298 return -1;
2299 return 0;
2300 }
2301
2302 #ifdef CONFIG_LINUX
2303 static int fsdev_init_func(QemuOpts *opts, void *opaque)
2304 {
2305 int ret;
2306 ret = qemu_fsdev_add(opts);
2307
2308 return ret;
2309 }
2310 #endif
2311
2312 static int mon_init_func(QemuOpts *opts, void *opaque)
2313 {
2314 CharDriverState *chr;
2315 const char *chardev;
2316 const char *mode;
2317 int flags;
2318
2319 mode = qemu_opt_get(opts, "mode");
2320 if (mode == NULL) {
2321 mode = "readline";
2322 }
2323 if (strcmp(mode, "readline") == 0) {
2324 flags = MONITOR_USE_READLINE;
2325 } else if (strcmp(mode, "control") == 0) {
2326 flags = MONITOR_USE_CONTROL;
2327 } else {
2328 fprintf(stderr, "unknown monitor mode \"%s\"\n", mode);
2329 exit(1);
2330 }
2331
2332 if (qemu_opt_get_bool(opts, "default", 0))
2333 flags |= MONITOR_IS_DEFAULT;
2334
2335 chardev = qemu_opt_get(opts, "chardev");
2336 chr = qemu_chr_find(chardev);
2337 if (chr == NULL) {
2338 fprintf(stderr, "chardev \"%s\" not found\n", chardev);
2339 exit(1);
2340 }
2341
2342 monitor_init(chr, flags);
2343 return 0;
2344 }
2345
2346 static void monitor_parse(const char *optarg, const char *mode)
2347 {
2348 static int monitor_device_index = 0;
2349 QemuOpts *opts;
2350 const char *p;
2351 char label[32];
2352 int def = 0;
2353
2354 if (strstart(optarg, "chardev:", &p)) {
2355 snprintf(label, sizeof(label), "%s", p);
2356 } else {
2357 snprintf(label, sizeof(label), "compat_monitor%d",
2358 monitor_device_index);
2359 if (monitor_device_index == 0) {
2360 def = 1;
2361 }
2362 opts = qemu_chr_parse_compat(label, optarg);
2363 if (!opts) {
2364 fprintf(stderr, "parse error: %s\n", optarg);
2365 exit(1);
2366 }
2367 }
2368
2369 opts = qemu_opts_create(&qemu_mon_opts, label, 1);
2370 if (!opts) {
2371 fprintf(stderr, "duplicate chardev: %s\n", label);
2372 exit(1);
2373 }
2374 qemu_opt_set(opts, "mode", mode);
2375 qemu_opt_set(opts, "chardev", label);
2376 if (def)
2377 qemu_opt_set(opts, "default", "on");
2378 monitor_device_index++;
2379 }
2380
2381 struct device_config {
2382 enum {
2383 DEV_USB, /* -usbdevice */
2384 DEV_BT, /* -bt */
2385 DEV_SERIAL, /* -serial */
2386 DEV_PARALLEL, /* -parallel */
2387 DEV_VIRTCON, /* -virtioconsole */
2388 DEV_DEBUGCON, /* -debugcon */
2389 } type;
2390 const char *cmdline;
2391 QTAILQ_ENTRY(device_config) next;
2392 };
2393 QTAILQ_HEAD(, device_config) device_configs = QTAILQ_HEAD_INITIALIZER(device_configs);
2394
2395 static void add_device_config(int type, const char *cmdline)
2396 {
2397 struct device_config *conf;
2398
2399 conf = qemu_mallocz(sizeof(*conf));
2400 conf->type = type;
2401 conf->cmdline = cmdline;
2402 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2403 }
2404
2405 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2406 {
2407 struct device_config *conf;
2408 int rc;
2409
2410 QTAILQ_FOREACH(conf, &device_configs, next) {
2411 if (conf->type != type)
2412 continue;
2413 rc = func(conf->cmdline);
2414 if (0 != rc)
2415 return rc;
2416 }
2417 return 0;
2418 }
2419
2420 static int serial_parse(const char *devname)
2421 {
2422 static int index = 0;
2423 char label[32];
2424
2425 if (strcmp(devname, "none") == 0)
2426 return 0;
2427 if (index == MAX_SERIAL_PORTS) {
2428 fprintf(stderr, "qemu: too many serial ports\n");
2429 exit(1);
2430 }
2431 snprintf(label, sizeof(label), "serial%d", index);
2432 serial_hds[index] = qemu_chr_open(label, devname, NULL);
2433 if (!serial_hds[index]) {
2434 fprintf(stderr, "qemu: could not open serial device '%s': %s\n",
2435 devname, strerror(errno));
2436 return -1;
2437 }
2438 index++;
2439 return 0;
2440 }
2441
2442 static int parallel_parse(const char *devname)
2443 {
2444 static int index = 0;
2445 char label[32];
2446
2447 if (strcmp(devname, "none") == 0)
2448 return 0;
2449 if (index == MAX_PARALLEL_PORTS) {
2450 fprintf(stderr, "qemu: too many parallel ports\n");
2451 exit(1);
2452 }
2453 snprintf(label, sizeof(label), "parallel%d", index);
2454 parallel_hds[index] = qemu_chr_open(label, devname, NULL);
2455 if (!parallel_hds[index]) {
2456 fprintf(stderr, "qemu: could not open parallel device '%s': %s\n",
2457 devname, strerror(errno));
2458 return -1;
2459 }
2460 index++;
2461 return 0;
2462 }
2463
2464 static int virtcon_parse(const char *devname)
2465 {
2466 static int index = 0;
2467 char label[32];
2468 QemuOpts *bus_opts, *dev_opts;
2469
2470 if (strcmp(devname, "none") == 0)
2471 return 0;
2472 if (index == MAX_VIRTIO_CONSOLES) {
2473 fprintf(stderr, "qemu: too many virtio consoles\n");
2474 exit(1);
2475 }
2476
2477 bus_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2478 qemu_opt_set(bus_opts, "driver", "virtio-serial");
2479
2480 dev_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2481 qemu_opt_set(dev_opts, "driver", "virtconsole");
2482
2483 snprintf(label, sizeof(label), "virtcon%d", index);
2484 virtcon_hds[index] = qemu_chr_open(label, devname, NULL);
2485 if (!virtcon_hds[index]) {
2486 fprintf(stderr, "qemu: could not open virtio console '%s': %s\n",
2487 devname, strerror(errno));
2488 return -1;
2489 }
2490 qemu_opt_set(dev_opts, "chardev", label);
2491
2492 index++;
2493 return 0;
2494 }
2495
2496 static int debugcon_parse(const char *devname)
2497 {
2498 QemuOpts *opts;
2499
2500 if (!qemu_chr_open("debugcon", devname, NULL)) {
2501 exit(1);
2502 }
2503 opts = qemu_opts_create(&qemu_device_opts, "debugcon", 1);
2504 if (!opts) {
2505 fprintf(stderr, "qemu: already have a debugcon device\n");
2506 exit(1);
2507 }
2508 qemu_opt_set(opts, "driver", "isa-debugcon");
2509 qemu_opt_set(opts, "chardev", "debugcon");
2510 return 0;
2511 }
2512
2513 static const QEMUOption *lookup_opt(int argc, char **argv,
2514 const char **poptarg, int *poptind)
2515 {
2516 const QEMUOption *popt;
2517 int optind = *poptind;
2518 char *r = argv[optind];
2519 const char *optarg;
2520
2521 loc_set_cmdline(argv, optind, 1);
2522 optind++;
2523 /* Treat --foo the same as -foo. */
2524 if (r[1] == '-')
2525 r++;
2526 popt = qemu_options;
2527 for(;;) {
2528 if (!popt->name) {
2529 error_report("invalid option");
2530 exit(1);
2531 }
2532 if (!strcmp(popt->name, r + 1))
2533 break;
2534 popt++;
2535 }
2536 if (popt->flags & HAS_ARG) {
2537 if (optind >= argc) {
2538 error_report("requires an argument");
2539 exit(1);
2540 }
2541 optarg = argv[optind++];
2542 loc_set_cmdline(argv, optind - 2, 2);
2543 } else {
2544 optarg = NULL;
2545 }
2546
2547 *poptarg = optarg;
2548 *poptind = optind;
2549
2550 return popt;
2551 }
2552
2553 int main(int argc, char **argv, char **envp)
2554 {
2555 const char *gdbstub_dev = NULL;
2556 int i;
2557 int snapshot, linux_boot;
2558 const char *icount_option = NULL;
2559 const char *initrd_filename;
2560 const char *kernel_filename, *kernel_cmdline;
2561 char boot_devices[33] = "cad"; /* default to HD->floppy->CD-ROM */
2562 DisplayState *ds;
2563 DisplayChangeListener *dcl;
2564 int cyls, heads, secs, translation;
2565 QemuOpts *hda_opts = NULL, *opts;
2566 int optind;
2567 const char *optarg;
2568 const char *loadvm = NULL;
2569 QEMUMachine *machine;
2570 const char *cpu_model;
2571 #ifndef _WIN32
2572 int fds[2];
2573 #endif
2574 int tb_size;
2575 const char *pid_file = NULL;
2576 const char *incoming = NULL;
2577 #ifndef _WIN32
2578 int fd = 0;
2579 struct passwd *pwd = NULL;
2580 const char *chroot_dir = NULL;
2581 const char *run_as = NULL;
2582 #endif
2583 int show_vnc_port = 0;
2584 int defconfig = 1;
2585
2586 error_set_progname(argv[0]);
2587
2588 init_clocks();
2589
2590 qemu_cache_utils_init(envp);
2591
2592 QLIST_INIT (&vm_change_state_head);
2593 #ifndef _WIN32
2594 {
2595 struct sigaction act;
2596 sigfillset(&act.sa_mask);
2597 act.sa_flags = 0;
2598 act.sa_handler = SIG_IGN;
2599 sigaction(SIGPIPE, &act, NULL);
2600 }
2601 #else
2602 SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE);
2603 /* Note: cpu_interrupt() is currently not SMP safe, so we force
2604 QEMU to run on a single CPU */
2605 {
2606 HANDLE h;
2607 DWORD mask, smask;
2608 int i;
2609 h = GetCurrentProcess();
2610 if (GetProcessAffinityMask(h, &mask, &smask)) {
2611 for(i = 0; i < 32; i++) {
2612 if (mask & (1 << i))
2613 break;
2614 }
2615 if (i != 32) {
2616 mask = 1 << i;
2617 SetProcessAffinityMask(h, mask);
2618 }
2619 }
2620 }
2621 #endif
2622
2623 module_call_init(MODULE_INIT_MACHINE);
2624 machine = find_default_machine();
2625 cpu_model = NULL;
2626 initrd_filename = NULL;
2627 ram_size = 0;
2628 snapshot = 0;
2629 kernel_filename = NULL;
2630 kernel_cmdline = "";
2631 cyls = heads = secs = 0;
2632 translation = BIOS_ATA_TRANSLATION_AUTO;
2633
2634 for (i = 0; i < MAX_NODES; i++) {
2635 node_mem[i] = 0;
2636 node_cpumask[i] = 0;
2637 }
2638
2639 nb_numa_nodes = 0;
2640 nb_nics = 0;
2641
2642 tb_size = 0;
2643 autostart= 1;
2644
2645 /* first pass of option parsing */
2646 optind = 1;
2647 while (optind < argc) {
2648 if (argv[optind][0] != '-') {
2649 /* disk image */
2650 optind++;
2651 continue;
2652 } else {
2653 const QEMUOption *popt;
2654
2655 popt = lookup_opt(argc, argv, &optarg, &optind);
2656 switch (popt->index) {
2657 case QEMU_OPTION_nodefconfig:
2658 defconfig=0;
2659 break;
2660 }
2661 }
2662 }
2663
2664 if (defconfig) {
2665 int ret;
2666
2667 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2668 if (ret < 0 && ret != -ENOENT) {
2669 exit(1);
2670 }
2671
2672 ret = qemu_read_config_file(arch_config_name);
2673 if (ret < 0 && ret != -ENOENT) {
2674 exit(1);
2675 }
2676 }
2677 cpudef_init();
2678
2679 /* second pass of option parsing */
2680 optind = 1;
2681 for(;;) {
2682 if (optind >= argc)
2683 break;
2684 if (argv[optind][0] != '-') {
2685 hda_opts = drive_add(argv[optind++], HD_ALIAS, 0);
2686 } else {
2687 const QEMUOption *popt;
2688
2689 popt = lookup_opt(argc, argv, &optarg, &optind);
2690 if (!(popt->arch_mask & arch_type)) {
2691 printf("Option %s not supported for this target\n", popt->name);
2692 exit(1);
2693 }
2694 switch(popt->index) {
2695 case QEMU_OPTION_M:
2696 machine = find_machine(optarg);
2697 if (!machine) {
2698 QEMUMachine *m;
2699 printf("Supported machines are:\n");
2700 for(m = first_machine; m != NULL; m = m->next) {
2701 if (m->alias)
2702 printf("%-10s %s (alias of %s)\n",
2703 m->alias, m->desc, m->name);
2704 printf("%-10s %s%s\n",
2705 m->name, m->desc,
2706 m->is_default ? " (default)" : "");
2707 }
2708 exit(*optarg != '?');
2709 }
2710 break;
2711 case QEMU_OPTION_cpu:
2712 /* hw initialization will check this */
2713 if (*optarg == '?') {
2714 list_cpus(stdout, &fprintf, optarg);
2715 exit(0);
2716 } else {
2717 cpu_model = optarg;
2718 }
2719 break;
2720 case QEMU_OPTION_initrd:
2721 initrd_filename = optarg;
2722 break;
2723 case QEMU_OPTION_hda:
2724 if (cyls == 0)
2725 hda_opts = drive_add(optarg, HD_ALIAS, 0);
2726 else
2727 hda_opts = drive_add(optarg, HD_ALIAS
2728 ",cyls=%d,heads=%d,secs=%d%s",
2729 0, cyls, heads, secs,
2730 translation == BIOS_ATA_TRANSLATION_LBA ?
2731 ",trans=lba" :
2732 translation == BIOS_ATA_TRANSLATION_NONE ?
2733 ",trans=none" : "");
2734 break;
2735 case QEMU_OPTION_hdb:
2736 case QEMU_OPTION_hdc:
2737 case QEMU_OPTION_hdd:
2738 drive_add(optarg, HD_ALIAS, popt->index - QEMU_OPTION_hda);
2739 break;
2740 case QEMU_OPTION_drive:
2741 drive_add(NULL, "%s", optarg);
2742 break;
2743 case QEMU_OPTION_set:
2744 if (qemu_set_option(optarg) != 0)
2745 exit(1);
2746 break;
2747 case QEMU_OPTION_global:
2748 if (qemu_global_option(optarg) != 0)
2749 exit(1);
2750 break;
2751 case QEMU_OPTION_mtdblock:
2752 drive_add(optarg, MTD_ALIAS);
2753 break;
2754 case QEMU_OPTION_sd:
2755 drive_add(optarg, SD_ALIAS);
2756 break;
2757 case QEMU_OPTION_pflash:
2758 drive_add(optarg, PFLASH_ALIAS);
2759 break;
2760 case QEMU_OPTION_snapshot:
2761 snapshot = 1;
2762 break;
2763 case QEMU_OPTION_hdachs:
2764 {
2765 const char *p;
2766 p = optarg;
2767 cyls = strtol(p, (char **)&p, 0);
2768 if (cyls < 1 || cyls > 16383)
2769 goto chs_fail;
2770 if (*p != ',')
2771 goto chs_fail;
2772 p++;
2773 heads = strtol(p, (char **)&p, 0);
2774 if (heads < 1 || heads > 16)
2775 goto chs_fail;
2776 if (*p != ',')
2777 goto chs_fail;
2778 p++;
2779 secs = strtol(p, (char **)&p, 0);
2780 if (secs < 1 || secs > 63)
2781 goto chs_fail;
2782 if (*p == ',') {
2783 p++;
2784 if (!strcmp(p, "none"))
2785 translation = BIOS_ATA_TRANSLATION_NONE;
2786 else if (!strcmp(p, "lba"))
2787 translation = BIOS_ATA_TRANSLATION_LBA;
2788 else if (!strcmp(p, "auto"))
2789 translation = BIOS_ATA_TRANSLATION_AUTO;
2790 else
2791 goto chs_fail;
2792 } else if (*p != '\0') {
2793 chs_fail:
2794 fprintf(stderr, "qemu: invalid physical CHS format\n");
2795 exit(1);
2796 }
2797 if (hda_opts != NULL) {
2798 char num[16];
2799 snprintf(num, sizeof(num), "%d", cyls);
2800 qemu_opt_set(hda_opts, "cyls", num);
2801 snprintf(num, sizeof(num), "%d", heads);
2802 qemu_opt_set(hda_opts, "heads", num);
2803 snprintf(num, sizeof(num), "%d", secs);
2804 qemu_opt_set(hda_opts, "secs", num);
2805 if (translation == BIOS_ATA_TRANSLATION_LBA)
2806 qemu_opt_set(hda_opts, "trans", "lba");
2807 if (translation == BIOS_ATA_TRANSLATION_NONE)
2808 qemu_opt_set(hda_opts, "trans", "none");
2809 }
2810 }
2811 break;
2812 case QEMU_OPTION_numa:
2813 if (nb_numa_nodes >= MAX_NODES) {
2814 fprintf(stderr, "qemu: too many NUMA nodes\n");
2815 exit(1);
2816 }
2817 numa_add(optarg);
2818 break;
2819 case QEMU_OPTION_nographic:
2820 display_type = DT_NOGRAPHIC;
2821 break;
2822 #ifdef CONFIG_CURSES
2823 case QEMU_OPTION_curses:
2824 display_type = DT_CURSES;
2825 break;
2826 #endif
2827 case QEMU_OPTION_portrait:
2828 graphic_rotate = 1;
2829 break;
2830 case QEMU_OPTION_kernel:
2831 kernel_filename = optarg;
2832 break;
2833 case QEMU_OPTION_append:
2834 kernel_cmdline = optarg;
2835 break;
2836 case QEMU_OPTION_cdrom:
2837 drive_add(optarg, CDROM_ALIAS);
2838 break;
2839 case QEMU_OPTION_boot:
2840 {
2841 static const char * const params[] = {
2842 "order", "once", "menu", NULL
2843 };
2844 char buf[sizeof(boot_devices)];
2845 char *standard_boot_devices;
2846 int legacy = 0;
2847
2848 if (!strchr(optarg, '=')) {
2849 legacy = 1;
2850 pstrcpy(buf, sizeof(buf), optarg);
2851 } else if (check_params(buf, sizeof(buf), params, optarg) < 0) {
2852 fprintf(stderr,
2853 "qemu: unknown boot parameter '%s' in '%s'\n",
2854 buf, optarg);
2855 exit(1);
2856 }
2857
2858 if (legacy ||
2859 get_param_value(buf, sizeof(buf), "order", optarg)) {
2860 validate_bootdevices(buf);
2861 pstrcpy(boot_devices, sizeof(boot_devices), buf);
2862 }
2863 if (!legacy) {
2864 if (get_param_value(buf, sizeof(buf),
2865 "once", optarg)) {
2866 validate_bootdevices(buf);
2867 standard_boot_devices = qemu_strdup(boot_devices);
2868 pstrcpy(boot_devices, sizeof(boot_devices), buf);
2869 qemu_register_reset(restore_boot_devices,
2870 standard_boot_devices);
2871 }
2872 if (get_param_value(buf, sizeof(buf),
2873 "menu", optarg)) {
2874 if (!strcmp(buf, "on")) {
2875 boot_menu = 1;
2876 } else if (!strcmp(buf, "off")) {
2877 boot_menu = 0;
2878 } else {
2879 fprintf(stderr,
2880 "qemu: invalid option value '%s'\n",
2881 buf);
2882 exit(1);
2883 }
2884 }
2885 }
2886 }
2887 break;
2888 case QEMU_OPTION_fda:
2889 case QEMU_OPTION_fdb:
2890 drive_add(optarg, FD_ALIAS, popt->index - QEMU_OPTION_fda);
2891 break;
2892 case QEMU_OPTION_no_fd_bootchk:
2893 fd_bootchk = 0;
2894 break;
2895 case QEMU_OPTION_netdev:
2896 if (net_client_parse(&qemu_netdev_opts, optarg) == -1) {
2897 exit(1);
2898 }
2899 break;
2900 case QEMU_OPTION_net:
2901 if (net_client_parse(&qemu_net_opts, optarg) == -1) {
2902 exit(1);
2903 }
2904 break;
2905 #ifdef CONFIG_SLIRP
2906 case QEMU_OPTION_tftp:
2907 legacy_tftp_prefix = optarg;
2908 break;
2909 case QEMU_OPTION_bootp:
2910 legacy_bootp_filename = optarg;
2911 break;
2912 #ifndef _WIN32
2913 case QEMU_OPTION_smb:
2914 if (net_slirp_smb(optarg) < 0)
2915 exit(1);
2916 break;
2917 #endif
2918 case QEMU_OPTION_redir:
2919 if (net_slirp_redir(optarg) < 0)
2920 exit(1);
2921 break;
2922 #endif
2923 case QEMU_OPTION_bt:
2924 add_device_config(DEV_BT, optarg);
2925 break;
2926 case QEMU_OPTION_audio_help:
2927 if (!(audio_available())) {
2928 printf("Option %s not supported for this target\n", popt->name);
2929 exit(1);
2930 }
2931 AUD_help ();
2932 exit (0);
2933 break;
2934 case QEMU_OPTION_soundhw:
2935 if (!(audio_available())) {
2936 printf("Option %s not supported for this target\n", popt->name);
2937 exit(1);
2938 }
2939 select_soundhw (optarg);
2940 break;
2941 case QEMU_OPTION_h:
2942 help(0);
2943 break;
2944 case QEMU_OPTION_version:
2945 version();
2946 exit(0);
2947 break;
2948 case QEMU_OPTION_m: {
2949 uint64_t value;
2950 char *ptr;
2951
2952 value = strtoul(optarg, &ptr, 10);
2953 switch (*ptr) {
2954 case 0: case 'M': case 'm':
2955 value <<= 20;
2956 break;
2957 case 'G': case 'g':
2958 value <<= 30;
2959 break;
2960 default:
2961 fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
2962 exit(1);
2963 }
2964
2965 /* On 32-bit hosts, QEMU is limited by virtual address space */
2966 if (value > (2047 << 20) && HOST_LONG_BITS == 32) {
2967 fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
2968 exit(1);
2969 }
2970 if (value != (uint64_t)(ram_addr_t)value) {
2971 fprintf(stderr, "qemu: ram size too large\n");
2972 exit(1);
2973 }
2974 ram_size = value;
2975 break;
2976 }
2977 case QEMU_OPTION_mempath:
2978 mem_path = optarg;
2979 break;
2980 #ifdef MAP_POPULATE
2981 case QEMU_OPTION_mem_prealloc:
2982 mem_prealloc = 1;
2983 break;
2984 #endif
2985 case QEMU_OPTION_d:
2986 set_cpu_log(optarg);
2987 break;
2988 case QEMU_OPTION_s:
2989 gdbstub_dev = "tcp::" DEFAULT_GDBSTUB_PORT;
2990 break;
2991 case QEMU_OPTION_gdb:
2992 gdbstub_dev = optarg;
2993 break;
2994 case QEMU_OPTION_L:
2995 data_dir = optarg;
2996 break;
2997 case QEMU_OPTION_bios:
2998 bios_name = optarg;
2999 break;
3000 case QEMU_OPTION_singlestep:
3001 singlestep = 1;
3002 break;
3003 case QEMU_OPTION_S:
3004 autostart = 0;
3005 break;
3006 case QEMU_OPTION_k:
3007 keyboard_layout = optarg;
3008 break;
3009 case QEMU_OPTION_localtime:
3010 rtc_utc = 0;
3011 break;
3012 case QEMU_OPTION_vga:
3013 select_vgahw (optarg);
3014 break;
3015 case QEMU_OPTION_g:
3016 {
3017 const char *p;
3018 int w, h, depth;
3019 p = optarg;
3020 w = strtol(p, (char **)&p, 10);
3021 if (w <= 0) {
3022 graphic_error:
3023 fprintf(stderr, "qemu: invalid resolution or depth\n");
3024 exit(1);
3025 }
3026 if (*p != 'x')
3027 goto graphic_error;
3028 p++;
3029 h = strtol(p, (char **)&p, 10);
3030 if (h <= 0)
3031 goto graphic_error;
3032 if (*p == 'x') {
3033 p++;
3034 depth = strtol(p, (char **)&p, 10);
3035 if (depth != 8 && depth != 15 && depth != 16 &&
3036 depth != 24 && depth != 32)
3037 goto graphic_error;
3038 } else if (*p == '\0') {
3039 depth = graphic_depth;
3040 } else {
3041 goto graphic_error;
3042 }
3043
3044 graphic_width = w;
3045 graphic_height = h;
3046 graphic_depth = depth;
3047 }
3048 break;
3049 case QEMU_OPTION_echr:
3050 {
3051 char *r;
3052 term_escape_char = strtol(optarg, &r, 0);
3053 if (r == optarg)
3054 printf("Bad argument to echr\n");
3055 break;
3056 }
3057 case QEMU_OPTION_monitor:
3058 monitor_parse(optarg, "readline");
3059 default_monitor = 0;
3060 break;
3061 case QEMU_OPTION_qmp:
3062 monitor_parse(optarg, "control");
3063 default_monitor = 0;
3064 break;
3065 case QEMU_OPTION_mon:
3066 opts = qemu_opts_parse(&qemu_mon_opts, optarg, 1);
3067 if (!opts) {
3068 exit(1);
3069 }
3070 default_monitor = 0;
3071 break;
3072 case QEMU_OPTION_chardev:
3073 opts = qemu_opts_parse(&qemu_chardev_opts, optarg, 1);
3074 if (!opts) {
3075 exit(1);
3076 }
3077 break;
3078 #ifdef CONFIG_LINUX
3079 case QEMU_OPTION_fsdev:
3080 opts = qemu_opts_parse(&qemu_fsdev_opts, optarg, 1);
3081 if (!opts) {
3082 fprintf(stderr, "parse error: %s\n", optarg);
3083 exit(1);
3084 }
3085 break;
3086 case QEMU_OPTION_virtfs: {
3087 char *arg_fsdev = NULL;
3088 char *arg_9p = NULL;
3089 int len = 0;
3090
3091 opts = qemu_opts_parse(&qemu_virtfs_opts, optarg, 1);
3092 if (!opts) {
3093 fprintf(stderr, "parse error: %s\n", optarg);
3094 exit(1);
3095 }
3096
3097 len = strlen(",id=,path=");
3098 len += strlen(qemu_opt_get(opts, "fstype"));
3099 len += strlen(qemu_opt_get(opts, "mount_tag"));
3100 len += strlen(qemu_opt_get(opts, "path"));
3101 arg_fsdev = qemu_malloc((len + 1) * sizeof(*arg_fsdev));
3102
3103 if (!arg_fsdev) {
3104 fprintf(stderr, "No memory to parse -fsdev for %s\n",
3105 optarg);
3106 exit(1);
3107 }
3108
3109 sprintf(arg_fsdev, "%s,id=%s,path=%s",
3110 qemu_opt_get(opts, "fstype"),
3111 qemu_opt_get(opts, "mount_tag"),
3112 qemu_opt_get(opts, "path"));
3113
3114 len = strlen("virtio-9p-pci,fsdev=,mount_tag=");
3115 len += 2*strlen(qemu_opt_get(opts, "mount_tag"));
3116 arg_9p = qemu_malloc((len + 1) * sizeof(*arg_9p));
3117
3118 if (!arg_9p) {
3119 fprintf(stderr, "No memory to parse -device for %s\n",
3120 optarg);
3121 exit(1);
3122 }
3123
3124 sprintf(arg_9p, "virtio-9p-pci,fsdev=%s,mount_tag=%s",
3125 qemu_opt_get(opts, "mount_tag"),
3126 qemu_opt_get(opts, "mount_tag"));
3127
3128 if (!qemu_opts_parse(&qemu_fsdev_opts, arg_fsdev, 1)) {
3129 fprintf(stderr, "parse error [fsdev]: %s\n", optarg);
3130 exit(1);
3131 }
3132
3133 if (!qemu_opts_parse(&qemu_device_opts, arg_9p, 1)) {
3134 fprintf(stderr, "parse error [device]: %s\n", optarg);
3135 exit(1);
3136 }
3137
3138 qemu_free(arg_fsdev);
3139 qemu_free(arg_9p);
3140 break;
3141 }
3142 #endif
3143 case QEMU_OPTION_serial:
3144 add_device_config(DEV_SERIAL, optarg);
3145 default_serial = 0;
3146 if (strncmp(optarg, "mon:", 4) == 0) {
3147 default_monitor = 0;
3148 }
3149 break;
3150 case QEMU_OPTION_watchdog:
3151 if (watchdog) {
3152 fprintf(stderr,
3153 "qemu: only one watchdog option may be given\n");
3154 return 1;
3155 }
3156 watchdog = optarg;
3157 break;
3158 case QEMU_OPTION_watchdog_action:
3159 if (select_watchdog_action(optarg) == -1) {
3160 fprintf(stderr, "Unknown -watchdog-action parameter\n");
3161 exit(1);
3162 }
3163 break;
3164 case QEMU_OPTION_virtiocon:
3165 add_device_config(DEV_VIRTCON, optarg);
3166 default_virtcon = 0;
3167 if (strncmp(optarg, "mon:", 4) == 0) {
3168 default_monitor = 0;
3169 }
3170 break;
3171 case QEMU_OPTION_parallel:
3172 add_device_config(DEV_PARALLEL, optarg);
3173 default_parallel = 0;
3174 if (strncmp(optarg, "mon:", 4) == 0) {
3175 default_monitor = 0;
3176 }
3177 break;
3178 case QEMU_OPTION_debugcon:
3179 add_device_config(DEV_DEBUGCON, optarg);
3180 break;
3181 case QEMU_OPTION_loadvm:
3182 loadvm = optarg;
3183 break;
3184 case QEMU_OPTION_full_screen:
3185 full_screen = 1;
3186 break;
3187 #ifdef CONFIG_SDL
3188 case QEMU_OPTION_no_frame:
3189 no_frame = 1;
3190 break;
3191 case QEMU_OPTION_alt_grab:
3192 alt_grab = 1;
3193 break;
3194 case QEMU_OPTION_ctrl_grab:
3195 ctrl_grab = 1;
3196 break;
3197 case QEMU_OPTION_no_quit:
3198 no_quit = 1;
3199 break;
3200 case QEMU_OPTION_sdl:
3201 display_type = DT_SDL;
3202 break;
3203 #endif
3204 case QEMU_OPTION_pidfile:
3205 pid_file = optarg;
3206 break;
3207 case QEMU_OPTION_win2k_hack:
3208 win2k_install_hack = 1;
3209 break;
3210 case QEMU_OPTION_rtc_td_hack:
3211 rtc_td_hack = 1;
3212 break;
3213 case QEMU_OPTION_acpitable:
3214 do_acpitable_option(optarg);
3215 break;
3216 case QEMU_OPTION_smbios:
3217 do_smbios_option(optarg);
3218 break;
3219 case QEMU_OPTION_enable_kvm:
3220 kvm_allowed = 1;
3221 break;
3222 case QEMU_OPTION_usb:
3223 usb_enabled = 1;
3224 break;
3225 case QEMU_OPTION_usbdevice:
3226 usb_enabled = 1;
3227 add_device_config(DEV_USB, optarg);
3228 break;
3229 case QEMU_OPTION_device:
3230 if (!qemu_opts_parse(&qemu_device_opts, optarg, 1)) {
3231 exit(1);
3232 }
3233 break;
3234 case QEMU_OPTION_smp:
3235 smp_parse(optarg);
3236 if (smp_cpus < 1) {
3237 fprintf(stderr, "Invalid number of CPUs\n");
3238 exit(1);
3239 }
3240 if (max_cpus < smp_cpus) {
3241 fprintf(stderr, "maxcpus must be equal to or greater than "
3242 "smp\n");
3243 exit(1);
3244 }
3245 if (max_cpus > 255) {
3246 fprintf(stderr, "Unsupported number of maxcpus\n");
3247 exit(1);
3248 }
3249 break;
3250 case QEMU_OPTION_vnc:
3251 display_type = DT_VNC;
3252 vnc_display = optarg;
3253 break;
3254 case QEMU_OPTION_no_acpi:
3255 acpi_enabled = 0;
3256 break;
3257 case QEMU_OPTION_no_hpet:
3258 no_hpet = 1;
3259 break;
3260 case QEMU_OPTION_balloon:
3261 if (balloon_parse(optarg) < 0) {
3262 fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
3263 exit(1);
3264 }
3265 break;
3266 case QEMU_OPTION_no_reboot:
3267 no_reboot = 1;
3268 break;
3269 case QEMU_OPTION_no_shutdown:
3270 no_shutdown = 1;
3271 break;
3272 case QEMU_OPTION_show_cursor:
3273 cursor_hide = 0;
3274 break;
3275 case QEMU_OPTION_uuid:
3276 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
3277 fprintf(stderr, "Fail to parse UUID string."
3278 " Wrong format.\n");
3279 exit(1);
3280 }
3281 break;
3282 #ifndef _WIN32
3283 case QEMU_OPTION_daemonize:
3284 daemonize = 1;
3285 break;
3286 #endif
3287 case QEMU_OPTION_option_rom:
3288 if (nb_option_roms >= MAX_OPTION_ROMS) {
3289 fprintf(stderr, "Too many option ROMs\n");
3290 exit(1);
3291 }
3292 option_rom[nb_option_roms] = optarg;
3293 nb_option_roms++;
3294 break;
3295 case QEMU_OPTION_semihosting:
3296 semihosting_enabled = 1;
3297 break;
3298 case QEMU_OPTION_name:
3299 qemu_name = qemu_strdup(optarg);
3300 {
3301 char *p = strchr(qemu_name, ',');
3302 if (p != NULL) {
3303 *p++ = 0;
3304 if (strncmp(p, "process=", 8)) {
3305 fprintf(stderr, "Unknown subargument %s to -name", p);
3306 exit(1);
3307 }
3308 p += 8;
3309 set_proc_name(p);
3310 }
3311 }
3312 break;
3313 case QEMU_OPTION_prom_env:
3314 if (nb_prom_envs >= MAX_PROM_ENVS) {
3315 fprintf(stderr, "Too many prom variables\n");
3316 exit(1);
3317 }
3318 prom_envs[nb_prom_envs] = optarg;
3319 nb_prom_envs++;
3320 break;
3321 case QEMU_OPTION_old_param:
3322 old_param = 1;
3323 break;
3324 case QEMU_OPTION_clock:
3325 configure_alarms(optarg);
3326 break;
3327 case QEMU_OPTION_startdate:
3328 configure_rtc_date_offset(optarg, 1);
3329 break;
3330 case QEMU_OPTION_rtc:
3331 opts = qemu_opts_parse(&qemu_rtc_opts, optarg, 0);
3332 if (!opts) {
3333 exit(1);
3334 }
3335 configure_rtc(opts);
3336 break;
3337 case QEMU_OPTION_tb_size:
3338 tb_size = strtol(optarg, NULL, 0);
3339 if (tb_size < 0)
3340 tb_size = 0;
3341 break;
3342 case QEMU_OPTION_icount:
3343 icount_option = optarg;
3344 break;
3345 case QEMU_OPTION_incoming:
3346 incoming = optarg;
3347 break;
3348 case QEMU_OPTION_nodefaults:
3349 default_serial = 0;
3350 default_parallel = 0;
3351 default_virtcon = 0;
3352 default_monitor = 0;
3353 default_vga = 0;
3354 default_net = 0;
3355 default_floppy = 0;
3356 default_cdrom = 0;
3357 default_sdcard = 0;
3358 break;
3359 #ifndef _WIN32
3360 case QEMU_OPTION_chroot:
3361 chroot_dir = optarg;
3362 break;
3363 case QEMU_OPTION_runas:
3364 run_as = optarg;
3365 break;
3366 #endif
3367 case QEMU_OPTION_xen_domid:
3368 if (!(xen_available())) {
3369 printf("Option %s not supported for this target\n", popt->name);
3370 exit(1);
3371 }
3372 xen_domid = atoi(optarg);
3373 break;
3374 case QEMU_OPTION_xen_create:
3375 if (!(xen_available())) {
3376 printf("Option %s not supported for this target\n", popt->name);
3377 exit(1);
3378 }
3379 xen_mode = XEN_CREATE;
3380 break;
3381 case QEMU_OPTION_xen_attach:
3382 if (!(xen_available())) {
3383 printf("Option %s not supported for this target\n", popt->name);
3384 exit(1);
3385 }
3386 xen_mode = XEN_ATTACH;
3387 break;
3388 case QEMU_OPTION_readconfig:
3389 {
3390 int ret = qemu_read_config_file(optarg);
3391 if (ret < 0) {
3392 fprintf(stderr, "read config %s: %s\n", optarg,
3393 strerror(-ret));
3394 exit(1);
3395 }
3396 break;
3397 }
3398 case QEMU_OPTION_writeconfig:
3399 {
3400 FILE *fp;
3401 if (strcmp(optarg, "-") == 0) {
3402 fp = stdout;
3403 } else {
3404 fp = fopen(optarg, "w");
3405 if (fp == NULL) {
3406 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
3407 exit(1);
3408 }
3409 }
3410 qemu_config_write(fp);
3411 fclose(fp);
3412 break;
3413 }
3414 }
3415 }
3416 }
3417 loc_set_none();
3418
3419 /* If no data_dir is specified then try to find it relative to the
3420 executable path. */
3421 if (!data_dir) {
3422 data_dir = find_datadir(argv[0]);
3423 }
3424 /* If all else fails use the install patch specified when building. */
3425 if (!data_dir) {
3426 data_dir = CONFIG_QEMU_SHAREDIR;
3427 }
3428
3429 /*
3430 * Default to max_cpus = smp_cpus, in case the user doesn't
3431 * specify a max_cpus value.
3432 */
3433 if (!max_cpus)
3434 max_cpus = smp_cpus;
3435
3436 machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
3437 if (smp_cpus > machine->max_cpus) {
3438 fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
3439 "supported by machine `%s' (%d)\n", smp_cpus, machine->name,
3440 machine->max_cpus);
3441 exit(1);
3442 }
3443
3444 qemu_opts_foreach(&qemu_device_opts, default_driver_check, NULL, 0);
3445 qemu_opts_foreach(&qemu_global_opts, default_driver_check, NULL, 0);
3446
3447 if (machine->no_serial) {
3448 default_serial = 0;
3449 }
3450 if (machine->no_parallel) {
3451 default_parallel = 0;
3452 }
3453 if (!machine->use_virtcon) {
3454 default_virtcon = 0;
3455 }
3456 if (machine->no_vga) {
3457 default_vga = 0;
3458 }
3459 if (machine->no_floppy) {
3460 default_floppy = 0;
3461 }
3462 if (machine->no_cdrom) {
3463 default_cdrom = 0;
3464 }
3465 if (machine->no_sdcard) {
3466 default_sdcard = 0;
3467 }
3468
3469 if (display_type == DT_NOGRAPHIC) {
3470 if (default_parallel)
3471 add_device_config(DEV_PARALLEL, "null");
3472 if (default_serial && default_monitor) {
3473 add_device_config(DEV_SERIAL, "mon:stdio");
3474 } else if (default_virtcon && default_monitor) {
3475 add_device_config(DEV_VIRTCON, "mon:stdio");
3476 } else {
3477 if (default_serial)
3478 add_device_config(DEV_SERIAL, "stdio");
3479 if (default_virtcon)
3480 add_device_config(DEV_VIRTCON, "stdio");
3481 if (default_monitor)
3482 monitor_parse("stdio", "readline");
3483 }
3484 } else {
3485 if (default_serial)
3486 add_device_config(DEV_SERIAL, "vc:80Cx24C");
3487 if (default_parallel)
3488 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
3489 if (default_monitor)
3490 monitor_parse("vc:80Cx24C", "readline");
3491 if (default_virtcon)
3492 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
3493 }
3494 if (default_vga)
3495 vga_interface_type = VGA_CIRRUS;
3496
3497 socket_init();
3498
3499 if (qemu_opts_foreach(&qemu_chardev_opts, chardev_init_func, NULL, 1) != 0)
3500 exit(1);
3501 #ifdef CONFIG_LINUX
3502 if (qemu_opts_foreach(&qemu_fsdev_opts, fsdev_init_func, NULL, 1) != 0) {
3503 exit(1);
3504 }
3505 #endif
3506
3507 #ifndef _WIN32
3508 if (daemonize) {
3509 pid_t pid;
3510
3511 if (pipe(fds) == -1)
3512 exit(1);
3513
3514 pid = fork();
3515 if (pid > 0) {
3516 uint8_t status;
3517 ssize_t len;
3518
3519 close(fds[1]);
3520
3521 again:
3522 len = read(fds[0], &status, 1);
3523 if (len == -1 && (errno == EINTR))
3524 goto again;
3525
3526 if (len != 1)
3527 exit(1);
3528 else if (status == 1) {
3529 fprintf(stderr, "Could not acquire pidfile: %s\n", strerror(errno));
3530 exit(1);
3531 } else
3532 exit(0);
3533 } else if (pid < 0)
3534 exit(1);
3535
3536 close(fds[0]);
3537 qemu_set_cloexec(fds[1]);
3538
3539 setsid();
3540
3541 pid = fork();
3542 if (pid > 0)
3543 exit(0);
3544 else if (pid < 0)
3545 exit(1);
3546
3547 umask(027);
3548
3549 signal(SIGTSTP, SIG_IGN);
3550 signal(SIGTTOU, SIG_IGN);
3551 signal(SIGTTIN, SIG_IGN);
3552 }
3553 #endif
3554
3555 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
3556 #ifndef _WIN32
3557 if (daemonize) {
3558 uint8_t status = 1;
3559 if (write(fds[1], &status, 1) != 1) {
3560 perror("daemonize. Writing to pipe\n");
3561 }
3562 } else
3563 #endif
3564 fprintf(stderr, "Could not acquire pid file: %s\n", strerror(errno));
3565 exit(1);
3566 }
3567
3568 if (kvm_allowed) {
3569 int ret = kvm_init(smp_cpus);
3570 if (ret < 0) {
3571 if (!kvm_available()) {
3572 printf("KVM not supported for this target\n");
3573 } else {
3574 fprintf(stderr, "failed to initialize KVM: %s\n", strerror(-ret));
3575 }
3576 exit(1);
3577 }
3578 }
3579
3580 if (qemu_init_main_loop()) {
3581 fprintf(stderr, "qemu_init_main_loop failed\n");
3582 exit(1);
3583 }
3584 linux_boot = (kernel_filename != NULL);
3585
3586 if (!linux_boot && *kernel_cmdline != '\0') {
3587 fprintf(stderr, "-append only allowed with -kernel option\n");
3588 exit(1);
3589 }
3590
3591 if (!linux_boot && initrd_filename != NULL) {
3592 fprintf(stderr, "-initrd only allowed with -kernel option\n");
3593 exit(1);
3594 }
3595
3596 #ifndef _WIN32
3597 /* Win32 doesn't support line-buffering and requires size >= 2 */
3598 setvbuf(stdout, NULL, _IOLBF, 0);
3599 #endif
3600
3601 if (init_timer_alarm() < 0) {
3602 fprintf(stderr, "could not initialize alarm timer\n");
3603 exit(1);
3604 }
3605 configure_icount(icount_option);
3606
3607 if (net_init_clients() < 0) {
3608 exit(1);
3609 }
3610
3611 /* init the bluetooth world */
3612 if (foreach_device_config(DEV_BT, bt_parse))
3613 exit(1);
3614
3615 /* init the memory */
3616 if (ram_size == 0)
3617 ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
3618
3619 /* init the dynamic translator */
3620 cpu_exec_init_all(tb_size * 1024 * 1024);
3621
3622 bdrv_init_with_whitelist();
3623
3624 blk_mig_init();
3625
3626 if (default_cdrom) {
3627 /* we always create the cdrom drive, even if no disk is there */
3628 drive_add(NULL, CDROM_ALIAS);
3629 }
3630
3631 if (default_floppy) {
3632 /* we always create at least one floppy */
3633 drive_add(NULL, FD_ALIAS, 0);
3634 }
3635
3636 if (default_sdcard) {
3637 /* we always create one sd slot, even if no card is in it */
3638 drive_add(NULL, SD_ALIAS);
3639 }
3640
3641 /* open the virtual block devices */
3642 if (snapshot)
3643 qemu_opts_foreach(&qemu_drive_opts, drive_enable_snapshot, NULL, 0);
3644 if (qemu_opts_foreach(&qemu_drive_opts, drive_init_func, machine, 1) != 0)
3645 exit(1);
3646
3647 register_savevm_live("ram", 0, 3, NULL, ram_save_live, NULL,
3648 ram_load, NULL);
3649
3650 if (nb_numa_nodes > 0) {
3651 int i;
3652
3653 if (nb_numa_nodes > smp_cpus) {
3654 nb_numa_nodes = smp_cpus;
3655 }
3656
3657 /* If no memory size if given for any node, assume the default case
3658 * and distribute the available memory equally across all nodes
3659 */
3660 for (i = 0; i < nb_numa_nodes; i++) {
3661 if (node_mem[i] != 0)
3662 break;
3663 }
3664 if (i == nb_numa_nodes) {
3665 uint64_t usedmem = 0;
3666
3667 /* On Linux, the each node's border has to be 8MB aligned,
3668 * the final node gets the rest.
3669 */
3670 for (i = 0; i < nb_numa_nodes - 1; i++) {
3671 node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1);
3672 usedmem += node_mem[i];
3673 }
3674 node_mem[i] = ram_size - usedmem;
3675 }
3676
3677 for (i = 0; i < nb_numa_nodes; i++) {
3678 if (node_cpumask[i] != 0)
3679 break;
3680 }
3681 /* assigning the VCPUs round-robin is easier to implement, guest OSes
3682 * must cope with this anyway, because there are BIOSes out there in
3683 * real machines which also use this scheme.
3684 */
3685 if (i == nb_numa_nodes) {
3686 for (i = 0; i < smp_cpus; i++) {
3687 node_cpumask[i % nb_numa_nodes] |= 1 << i;
3688 }
3689 }
3690 }
3691
3692 if (qemu_opts_foreach(&qemu_mon_opts, mon_init_func, NULL, 1) != 0) {
3693 exit(1);
3694 }
3695
3696 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
3697 exit(1);
3698 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
3699 exit(1);
3700 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
3701 exit(1);
3702 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
3703 exit(1);
3704
3705 module_call_init(MODULE_INIT_DEVICE);
3706
3707 if (qemu_opts_foreach(&qemu_device_opts, device_help_func, NULL, 0) != 0)
3708 exit(0);
3709
3710 if (watchdog) {
3711 i = select_watchdog(watchdog);
3712 if (i > 0)
3713 exit (i == 1 ? 1 : 0);
3714 }
3715
3716 if (machine->compat_props) {
3717 qdev_prop_register_global_list(machine->compat_props);
3718 }
3719 qemu_add_globals();
3720
3721 machine->init(ram_size, boot_devices,
3722 kernel_filename, kernel_cmdline, initrd_filename, cpu_model);
3723
3724 cpu_synchronize_all_post_init();
3725
3726 #ifndef _WIN32
3727 /* must be after terminal init, SDL library changes signal handlers */
3728 sighandler_setup();
3729 #endif
3730
3731 set_numa_modes();
3732
3733 current_machine = machine;
3734
3735 /* init USB devices */
3736 if (usb_enabled) {
3737 if (foreach_device_config(DEV_USB, usb_parse) < 0)
3738 exit(1);
3739 }
3740
3741 /* init generic devices */
3742 if (qemu_opts_foreach(&qemu_device_opts, device_init_func, NULL, 1) != 0)
3743 exit(1);
3744
3745 net_check_clients();
3746
3747 /* just use the first displaystate for the moment */
3748 ds = get_displaystate();
3749
3750 if (display_type == DT_DEFAULT) {
3751 #if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
3752 display_type = DT_SDL;
3753 #else
3754 display_type = DT_VNC;
3755 vnc_display = "localhost:0,to=99";
3756 show_vnc_port = 1;
3757 #endif
3758 }
3759
3760
3761 switch (display_type) {
3762 case DT_NOGRAPHIC:
3763 break;
3764 #if defined(CONFIG_CURSES)
3765 case DT_CURSES:
3766 curses_display_init(ds, full_screen);
3767 break;
3768 #endif
3769 #if defined(CONFIG_SDL)
3770 case DT_SDL:
3771 sdl_display_init(ds, full_screen, no_frame);
3772 break;
3773 #elif defined(CONFIG_COCOA)
3774 case DT_SDL:
3775 cocoa_display_init(ds, full_screen);
3776 break;
3777 #endif
3778 case DT_VNC:
3779 vnc_display_init(ds);
3780 if (vnc_display_open(ds, vnc_display) < 0)
3781 exit(1);
3782
3783 if (show_vnc_port) {
3784 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
3785 }
3786 break;
3787 default:
3788 break;
3789 }
3790 dpy_resize(ds);
3791
3792 dcl = ds->listeners;
3793 while (dcl != NULL) {
3794 if (dcl->dpy_refresh != NULL) {
3795 ds->gui_timer = qemu_new_timer(rt_clock, gui_update, ds);
3796 qemu_mod_timer(ds->gui_timer, qemu_get_clock(rt_clock));
3797 }
3798 dcl = dcl->next;
3799 }
3800
3801 if (display_type == DT_NOGRAPHIC || display_type == DT_VNC) {
3802 nographic_timer = qemu_new_timer(rt_clock, nographic_update, NULL);
3803 qemu_mod_timer(nographic_timer, qemu_get_clock(rt_clock));
3804 }
3805
3806 text_consoles_set_display(ds);
3807
3808 if (gdbstub_dev && gdbserver_start(gdbstub_dev) < 0) {
3809 fprintf(stderr, "qemu: could not open gdbserver on device '%s'\n",
3810 gdbstub_dev);
3811 exit(1);
3812 }
3813
3814 qdev_machine_creation_done();
3815
3816 if (rom_load_all() != 0) {
3817 fprintf(stderr, "rom loading failed\n");
3818 exit(1);
3819 }
3820
3821 qemu_system_reset();
3822 if (loadvm) {
3823 if (load_vmstate(loadvm) < 0) {
3824 autostart = 0;
3825 }
3826 }
3827
3828 if (incoming) {
3829 qemu_start_incoming_migration(incoming);
3830 } else if (autostart) {
3831 vm_start();
3832 }
3833
3834 #ifndef _WIN32
3835 if (daemonize) {
3836 uint8_t status = 0;
3837 ssize_t len;
3838
3839 again1:
3840 len = write(fds[1], &status, 1);
3841 if (len == -1 && (errno == EINTR))
3842 goto again1;
3843
3844 if (len != 1)
3845 exit(1);
3846
3847 if (chdir("/")) {
3848 perror("not able to chdir to /");
3849 exit(1);
3850 }
3851 TFR(fd = qemu_open("/dev/null", O_RDWR));
3852 if (fd == -1)
3853 exit(1);
3854 }
3855
3856 if (run_as) {
3857 pwd = getpwnam(run_as);
3858 if (!pwd) {
3859 fprintf(stderr, "User \"%s\" doesn't exist\n", run_as);
3860 exit(1);
3861 }
3862 }
3863
3864 if (chroot_dir) {
3865 if (chroot(chroot_dir) < 0) {
3866 fprintf(stderr, "chroot failed\n");
3867 exit(1);
3868 }
3869 if (chdir("/")) {
3870 perror("not able to chdir to /");
3871 exit(1);
3872 }
3873 }
3874
3875 if (run_as) {
3876 if (setgid(pwd->pw_gid) < 0) {
3877 fprintf(stderr, "Failed to setgid(%d)\n", pwd->pw_gid);
3878 exit(1);
3879 }
3880 if (setuid(pwd->pw_uid) < 0) {
3881 fprintf(stderr, "Failed to setuid(%d)\n", pwd->pw_uid);
3882 exit(1);
3883 }
3884 if (setuid(0) != -1) {
3885 fprintf(stderr, "Dropping privileges failed\n");
3886 exit(1);
3887 }
3888 }
3889
3890 if (daemonize) {
3891 dup2(fd, 0);
3892 dup2(fd, 1);
3893 dup2(fd, 2);
3894
3895 close(fd);
3896 }
3897 #endif
3898
3899 main_loop();
3900 quit_timers();
3901 net_cleanup();
3902
3903 return 0;
3904 }
QEmu