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vhost-net: fix reversed logic in mask notifiers
[qemu/qemu-dev-zwu.git] / vl.c
blob37bc64fdfa08271c43063abd20ef9db45cf90fd2
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 #include "hw/device-assignment.h"
153 #ifdef CONFIG_LINUX
154 #include "fsdev/qemu-fsdev.h"
155 #endif
156
157 #include "disas.h"
158
159 #include "qemu_socket.h"
160
161 #include "slirp/libslirp.h"
162
163 #include "qemu-queue.h"
164 #include "cpus.h"
165 #include "arch_init.h"
166
167 //#define DEBUG_NET
168 //#define DEBUG_SLIRP
169
170 #define DEFAULT_RAM_SIZE 128
171
172 #define MAX_VIRTIO_CONSOLES 1
173
174 static const char *data_dir;
175 const char *bios_name = NULL;
176 /* Note: drives_table[MAX_DRIVES] is a dummy block driver if none available
177 to store the VM snapshots */
178 struct drivelist drives = QTAILQ_HEAD_INITIALIZER(drives);
179 struct driveoptlist driveopts = QTAILQ_HEAD_INITIALIZER(driveopts);
180 DriveInfo *extboot_drive = NULL;
181 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
182 DisplayType display_type = DT_DEFAULT;
183 const char* keyboard_layout = NULL;
184 ram_addr_t ram_size;
185 const char *mem_path = NULL;
186 #ifdef MAP_POPULATE
187 int mem_prealloc = 0; /* force preallocation of physical target memory */
188 #endif
189 int nb_nics;
190 NICInfo nd_table[MAX_NICS];
191 int vm_running;
192 int autostart;
193 static int rtc_utc = 1;
194 static int rtc_date_offset = -1; /* -1 means no change */
195 QEMUClock *rtc_clock;
196 int vga_interface_type = VGA_NONE;
197 static int full_screen = 0;
198 #ifdef CONFIG_SDL
199 static int no_frame = 0;
200 #endif
201 int no_quit = 0;
202 CharDriverState *serial_hds[MAX_SERIAL_PORTS];
203 CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
204 CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES];
205 int win2k_install_hack = 0;
206 int rtc_td_hack = 0;
207 int usb_enabled = 0;
208 int singlestep = 0;
209 const char *assigned_devices[MAX_DEV_ASSIGN_CMDLINE];
210 int assigned_devices_index;
211 int smp_cpus = 1;
212 int max_cpus = 0;
213 int smp_cores = 1;
214 int smp_threads = 1;
215 const char *vnc_display;
216 int acpi_enabled = 1;
217 #ifdef TARGET_I386
218 int no_hpet = 0;
219 #endif
220 int fd_bootchk = 1;
221 int no_reboot = 0;
222 int no_shutdown = 0;
223 int cursor_hide = 1;
224 int graphic_rotate = 0;
225 uint8_t irq0override = 1;
226 #ifndef _WIN32
227 int daemonize = 0;
228 #endif
229 const char *watchdog;
230 const char *option_rom[MAX_OPTION_ROMS];
231 int nb_option_roms;
232 int semihosting_enabled = 0;
233 int time_drift_fix = 0;
234 unsigned int kvm_shadow_memory = 0;
235 int old_param = 0;
236 const char *qemu_name;
237 int alt_grab = 0;
238 int ctrl_grab = 0;
239 unsigned int nb_prom_envs = 0;
240 const char *prom_envs[MAX_PROM_ENVS];
241 const char *nvram = NULL;
242 int boot_menu;
243
244 int nb_numa_nodes;
245 uint64_t node_mem[MAX_NODES];
246 uint64_t node_cpumask[MAX_NODES];
247
248 static QEMUTimer *nographic_timer;
249
250 uint8_t qemu_uuid[16];
251
252 static QEMUBootSetHandler *boot_set_handler;
253 static void *boot_set_opaque;
254
255 int kvm_allowed = 1;
256 uint32_t xen_domid;
257 enum xen_mode xen_mode = XEN_EMULATE;
258
259 static int default_serial = 1;
260 static int default_parallel = 1;
261 static int default_virtcon = 1;
262 static int default_monitor = 1;
263 static int default_vga = 1;
264 static int default_floppy = 1;
265 static int default_cdrom = 1;
266 static int default_sdcard = 1;
267
268 static struct {
269 const char *driver;
270 int *flag;
271 } default_list[] = {
272 { .driver = "isa-serial", .flag = &default_serial },
273 { .driver = "isa-parallel", .flag = &default_parallel },
274 { .driver = "isa-fdc", .flag = &default_floppy },
275 { .driver = "ide-drive", .flag = &default_cdrom },
276 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
277 { .driver = "virtio-serial-s390", .flag = &default_virtcon },
278 { .driver = "virtio-serial", .flag = &default_virtcon },
279 { .driver = "VGA", .flag = &default_vga },
280 { .driver = "cirrus-vga", .flag = &default_vga },
281 { .driver = "vmware-svga", .flag = &default_vga },
282 };
283
284 static int default_driver_check(QemuOpts *opts, void *opaque)
285 {
286 const char *driver = qemu_opt_get(opts, "driver");
287 int i;
288
289 if (!driver)
290 return 0;
291 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
292 if (strcmp(default_list[i].driver, driver) != 0)
293 continue;
294 *(default_list[i].flag) = 0;
295 }
296 return 0;
297 }
298
299 /***********************************************************/
300
301 static void set_proc_name(const char *s)
302 {
303 #if defined(__linux__) && defined(PR_SET_NAME)
304 char name[16];
305 if (!s)
306 return;
307 name[sizeof(name) - 1] = 0;
308 strncpy(name, s, sizeof(name));
309 /* Could rewrite argv[0] too, but that's a bit more complicated.
310 This simple way is enough for `top'. */
311 prctl(PR_SET_NAME, name);
312 #endif
313 }
314
315 /***********************************************************/
316 /* real time host monotonic timer */
317
318 /* compute with 96 bit intermediate result: (a*b)/c */
319 uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
320 {
321 union {
322 uint64_t ll;
323 struct {
324 #ifdef HOST_WORDS_BIGENDIAN
325 uint32_t high, low;
326 #else
327 uint32_t low, high;
328 #endif
329 } l;
330 } u, res;
331 uint64_t rl, rh;
332
333 u.ll = a;
334 rl = (uint64_t)u.l.low * (uint64_t)b;
335 rh = (uint64_t)u.l.high * (uint64_t)b;
336 rh += (rl >> 32);
337 res.l.high = rh / c;
338 res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
339 return res.ll;
340 }
341
342 /***********************************************************/
343 /* host time/date access */
344 void qemu_get_timedate(struct tm *tm, int offset)
345 {
346 time_t ti;
347 struct tm *ret;
348
349 time(&ti);
350 ti += offset;
351 if (rtc_date_offset == -1) {
352 if (rtc_utc)
353 ret = gmtime(&ti);
354 else
355 ret = localtime(&ti);
356 } else {
357 ti -= rtc_date_offset;
358 ret = gmtime(&ti);
359 }
360
361 memcpy(tm, ret, sizeof(struct tm));
362 }
363
364 int qemu_timedate_diff(struct tm *tm)
365 {
366 time_t seconds;
367
368 if (rtc_date_offset == -1)
369 if (rtc_utc)
370 seconds = mktimegm(tm);
371 else
372 seconds = mktime(tm);
373 else
374 seconds = mktimegm(tm) + rtc_date_offset;
375
376 return seconds - time(NULL);
377 }
378
379 void rtc_change_mon_event(struct tm *tm)
380 {
381 QObject *data;
382
383 data = qobject_from_jsonf("{ 'offset': %d }", qemu_timedate_diff(tm));
384 monitor_protocol_event(QEVENT_RTC_CHANGE, data);
385 qobject_decref(data);
386 }
387
388 static void configure_rtc_date_offset(const char *startdate, int legacy)
389 {
390 time_t rtc_start_date;
391 struct tm tm;
392
393 if (!strcmp(startdate, "now") && legacy) {
394 rtc_date_offset = -1;
395 } else {
396 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
397 &tm.tm_year,
398 &tm.tm_mon,
399 &tm.tm_mday,
400 &tm.tm_hour,
401 &tm.tm_min,
402 &tm.tm_sec) == 6) {
403 /* OK */
404 } else if (sscanf(startdate, "%d-%d-%d",
405 &tm.tm_year,
406 &tm.tm_mon,
407 &tm.tm_mday) == 3) {
408 tm.tm_hour = 0;
409 tm.tm_min = 0;
410 tm.tm_sec = 0;
411 } else {
412 goto date_fail;
413 }
414 tm.tm_year -= 1900;
415 tm.tm_mon--;
416 rtc_start_date = mktimegm(&tm);
417 if (rtc_start_date == -1) {
418 date_fail:
419 fprintf(stderr, "Invalid date format. Valid formats are:\n"
420 "'2006-06-17T16:01:21' or '2006-06-17'\n");
421 exit(1);
422 }
423 rtc_date_offset = time(NULL) - rtc_start_date;
424 }
425 }
426
427 static void configure_rtc(QemuOpts *opts)
428 {
429 const char *value;
430
431 value = qemu_opt_get(opts, "base");
432 if (value) {
433 if (!strcmp(value, "utc")) {
434 rtc_utc = 1;
435 } else if (!strcmp(value, "localtime")) {
436 rtc_utc = 0;
437 } else {
438 configure_rtc_date_offset(value, 0);
439 }
440 }
441 value = qemu_opt_get(opts, "clock");
442 if (value) {
443 if (!strcmp(value, "host")) {
444 rtc_clock = host_clock;
445 } else if (!strcmp(value, "vm")) {
446 rtc_clock = vm_clock;
447 } else {
448 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
449 exit(1);
450 }
451 }
452 value = qemu_opt_get(opts, "driftfix");
453 if (value) {
454 if (!strcmp(value, "slew")) {
455 rtc_td_hack = 1;
456 } else if (!strcmp(value, "none")) {
457 rtc_td_hack = 0;
458 } else {
459 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
460 exit(1);
461 }
462 }
463 }
464
465 /***********************************************************/
466 /* Bluetooth support */
467 static int nb_hcis;
468 static int cur_hci;
469 static struct HCIInfo *hci_table[MAX_NICS];
470
471 static struct bt_vlan_s {
472 struct bt_scatternet_s net;
473 int id;
474 struct bt_vlan_s *next;
475 } *first_bt_vlan;
476
477 /* find or alloc a new bluetooth "VLAN" */
478 static struct bt_scatternet_s *qemu_find_bt_vlan(int id)
479 {
480 struct bt_vlan_s **pvlan, *vlan;
481 for (vlan = first_bt_vlan; vlan != NULL; vlan = vlan->next) {
482 if (vlan->id == id)
483 return &vlan->net;
484 }
485 vlan = qemu_mallocz(sizeof(struct bt_vlan_s));
486 vlan->id = id;
487 pvlan = &first_bt_vlan;
488 while (*pvlan != NULL)
489 pvlan = &(*pvlan)->next;
490 *pvlan = vlan;
491 return &vlan->net;
492 }
493
494 static void null_hci_send(struct HCIInfo *hci, const uint8_t *data, int len)
495 {
496 }
497
498 static int null_hci_addr_set(struct HCIInfo *hci, const uint8_t *bd_addr)
499 {
500 return -ENOTSUP;
501 }
502
503 static struct HCIInfo null_hci = {
504 .cmd_send = null_hci_send,
505 .sco_send = null_hci_send,
506 .acl_send = null_hci_send,
507 .bdaddr_set = null_hci_addr_set,
508 };
509
510 struct HCIInfo *qemu_next_hci(void)
511 {
512 if (cur_hci == nb_hcis)
513 return &null_hci;
514
515 return hci_table[cur_hci++];
516 }
517
518 static struct HCIInfo *hci_init(const char *str)
519 {
520 char *endp;
521 struct bt_scatternet_s *vlan = 0;
522
523 if (!strcmp(str, "null"))
524 /* null */
525 return &null_hci;
526 else if (!strncmp(str, "host", 4) && (str[4] == '\0' || str[4] == ':'))
527 /* host[:hciN] */
528 return bt_host_hci(str[4] ? str + 5 : "hci0");
529 else if (!strncmp(str, "hci", 3)) {
530 /* hci[,vlan=n] */
531 if (str[3]) {
532 if (!strncmp(str + 3, ",vlan=", 6)) {
533 vlan = qemu_find_bt_vlan(strtol(str + 9, &endp, 0));
534 if (*endp)
535 vlan = 0;
536 }
537 } else
538 vlan = qemu_find_bt_vlan(0);
539 if (vlan)
540 return bt_new_hci(vlan);
541 }
542
543 fprintf(stderr, "qemu: Unknown bluetooth HCI `%s'.\n", str);
544
545 return 0;
546 }
547
548 static int bt_hci_parse(const char *str)
549 {
550 struct HCIInfo *hci;
551 bdaddr_t bdaddr;
552
553 if (nb_hcis >= MAX_NICS) {
554 fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
555 return -1;
556 }
557
558 hci = hci_init(str);
559 if (!hci)
560 return -1;
561
562 bdaddr.b[0] = 0x52;
563 bdaddr.b[1] = 0x54;
564 bdaddr.b[2] = 0x00;
565 bdaddr.b[3] = 0x12;
566 bdaddr.b[4] = 0x34;
567 bdaddr.b[5] = 0x56 + nb_hcis;
568 hci->bdaddr_set(hci, bdaddr.b);
569
570 hci_table[nb_hcis++] = hci;
571
572 return 0;
573 }
574
575 static void bt_vhci_add(int vlan_id)
576 {
577 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
578
579 if (!vlan->slave)
580 fprintf(stderr, "qemu: warning: adding a VHCI to "
581 "an empty scatternet %i\n", vlan_id);
582
583 bt_vhci_init(bt_new_hci(vlan));
584 }
585
586 static struct bt_device_s *bt_device_add(const char *opt)
587 {
588 struct bt_scatternet_s *vlan;
589 int vlan_id = 0;
590 char *endp = strstr(opt, ",vlan=");
591 int len = (endp ? endp - opt : strlen(opt)) + 1;
592 char devname[10];
593
594 pstrcpy(devname, MIN(sizeof(devname), len), opt);
595
596 if (endp) {
597 vlan_id = strtol(endp + 6, &endp, 0);
598 if (*endp) {
599 fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
600 return 0;
601 }
602 }
603
604 vlan = qemu_find_bt_vlan(vlan_id);
605
606 if (!vlan->slave)
607 fprintf(stderr, "qemu: warning: adding a slave device to "
608 "an empty scatternet %i\n", vlan_id);
609
610 if (!strcmp(devname, "keyboard"))
611 return bt_keyboard_init(vlan);
612
613 fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
614 return 0;
615 }
616
617 static int bt_parse(const char *opt)
618 {
619 const char *endp, *p;
620 int vlan;
621
622 if (strstart(opt, "hci", &endp)) {
623 if (!*endp || *endp == ',') {
624 if (*endp)
625 if (!strstart(endp, ",vlan=", 0))
626 opt = endp + 1;
627
628 return bt_hci_parse(opt);
629 }
630 } else if (strstart(opt, "vhci", &endp)) {
631 if (!*endp || *endp == ',') {
632 if (*endp) {
633 if (strstart(endp, ",vlan=", &p)) {
634 vlan = strtol(p, (char **) &endp, 0);
635 if (*endp) {
636 fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
637 return 1;
638 }
639 } else {
640 fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1);
641 return 1;
642 }
643 } else
644 vlan = 0;
645
646 bt_vhci_add(vlan);
647 return 0;
648 }
649 } else if (strstart(opt, "device:", &endp))
650 return !bt_device_add(endp);
651
652 fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
653 return 1;
654 }
655
656 /***********************************************************/
657 /* QEMU Block devices */
658
659 #define HD_ALIAS "index=%d,media=disk"
660 #define CDROM_ALIAS "index=2,media=cdrom"
661 #define FD_ALIAS "index=%d,if=floppy"
662 #define PFLASH_ALIAS "if=pflash"
663 #define MTD_ALIAS "if=mtd"
664 #define SD_ALIAS "index=0,if=sd"
665
666 QemuOpts *drive_add(const char *file, const char *fmt, ...)
667 {
668 va_list ap;
669 char optstr[1024];
670 QemuOpts *opts;
671
672 va_start(ap, fmt);
673 vsnprintf(optstr, sizeof(optstr), fmt, ap);
674 va_end(ap);
675
676 opts = qemu_opts_parse(&qemu_drive_opts, optstr, 0);
677 if (!opts) {
678 return NULL;
679 }
680 if (file)
681 qemu_opt_set(opts, "file", file);
682 return opts;
683 }
684
685 DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit)
686 {
687 DriveInfo *dinfo;
688
689 /* seek interface, bus and unit */
690
691 QTAILQ_FOREACH(dinfo, &drives, next) {
692 if (dinfo->type == type &&
693 dinfo->bus == bus &&
694 dinfo->unit == unit)
695 return dinfo;
696 }
697
698 return NULL;
699 }
700
701 DriveInfo *drive_get_by_id(const char *id)
702 {
703 DriveInfo *dinfo;
704
705 QTAILQ_FOREACH(dinfo, &drives, next) {
706 if (strcmp(id, dinfo->id))
707 continue;
708 return dinfo;
709 }
710 return NULL;
711 }
712
713 int drive_get_max_bus(BlockInterfaceType type)
714 {
715 int max_bus;
716 DriveInfo *dinfo;
717
718 max_bus = -1;
719 QTAILQ_FOREACH(dinfo, &drives, next) {
720 if(dinfo->type == type &&
721 dinfo->bus > max_bus)
722 max_bus = dinfo->bus;
723 }
724 return max_bus;
725 }
726
727 const char *drive_get_serial(BlockDriverState *bdrv)
728 {
729 DriveInfo *dinfo;
730
731 QTAILQ_FOREACH(dinfo, &drives, next) {
732 if (dinfo->bdrv == bdrv)
733 return dinfo->serial;
734 }
735
736 return "\0";
737 }
738
739 BlockInterfaceErrorAction drive_get_on_error(
740 BlockDriverState *bdrv, int is_read)
741 {
742 DriveInfo *dinfo;
743
744 QTAILQ_FOREACH(dinfo, &drives, next) {
745 if (dinfo->bdrv == bdrv)
746 return is_read ? dinfo->on_read_error : dinfo->on_write_error;
747 }
748
749 return is_read ? BLOCK_ERR_REPORT : BLOCK_ERR_STOP_ENOSPC;
750 }
751
752 static void bdrv_format_print(void *opaque, const char *name)
753 {
754 fprintf(stderr, " %s", name);
755 }
756
757 void drive_uninit(DriveInfo *dinfo)
758 {
759 qemu_opts_del(dinfo->opts);
760 bdrv_delete(dinfo->bdrv);
761 QTAILQ_REMOVE(&drives, dinfo, next);
762 qemu_free(dinfo);
763 }
764
765 static int parse_block_error_action(const char *buf, int is_read)
766 {
767 if (!strcmp(buf, "ignore")) {
768 return BLOCK_ERR_IGNORE;
769 } else if (!is_read && !strcmp(buf, "enospc")) {
770 return BLOCK_ERR_STOP_ENOSPC;
771 } else if (!strcmp(buf, "stop")) {
772 return BLOCK_ERR_STOP_ANY;
773 } else if (!strcmp(buf, "report")) {
774 return BLOCK_ERR_REPORT;
775 } else {
776 fprintf(stderr, "qemu: '%s' invalid %s error action\n",
777 buf, is_read ? "read" : "write");
778 return -1;
779 }
780 }
781
782 DriveInfo *drive_init(QemuOpts *opts, void *opaque,
783 int *fatal_error)
784 {
785 const char *buf;
786 const char *file = NULL;
787 char devname[128];
788 const char *serial;
789 const char *mediastr = "";
790 BlockInterfaceType type;
791 enum { MEDIA_DISK, MEDIA_CDROM } media;
792 int bus_id, unit_id;
793 int cyls, heads, secs, translation;
794 BlockDriver *drv = NULL;
795 QEMUMachine *machine = opaque;
796 int max_devs;
797 int index;
798 int ro = 0;
799 int bdrv_flags = 0;
800 int on_read_error, on_write_error;
801 const char *devaddr;
802 DriveInfo *dinfo;
803 int is_extboot = 0;
804 int snapshot = 0;
805
806 *fatal_error = 1;
807
808 translation = BIOS_ATA_TRANSLATION_AUTO;
809
810 if (machine && machine->use_scsi) {
811 type = IF_SCSI;
812 max_devs = MAX_SCSI_DEVS;
813 pstrcpy(devname, sizeof(devname), "scsi");
814 } else {
815 type = IF_IDE;
816 max_devs = MAX_IDE_DEVS;
817 pstrcpy(devname, sizeof(devname), "ide");
818 }
819 media = MEDIA_DISK;
820
821 /* extract parameters */
822 bus_id = qemu_opt_get_number(opts, "bus", 0);
823 unit_id = qemu_opt_get_number(opts, "unit", -1);
824 index = qemu_opt_get_number(opts, "index", -1);
825
826 cyls = qemu_opt_get_number(opts, "cyls", 0);
827 heads = qemu_opt_get_number(opts, "heads", 0);
828 secs = qemu_opt_get_number(opts, "secs", 0);
829
830 snapshot = qemu_opt_get_bool(opts, "snapshot", 0);
831 ro = qemu_opt_get_bool(opts, "readonly", 0);
832
833 file = qemu_opt_get(opts, "file");
834 serial = qemu_opt_get(opts, "serial");
835
836 if ((buf = qemu_opt_get(opts, "if")) != NULL) {
837 pstrcpy(devname, sizeof(devname), buf);
838 if (!strcmp(buf, "ide")) {
839 type = IF_IDE;
840 max_devs = MAX_IDE_DEVS;
841 } else if (!strcmp(buf, "scsi")) {
842 type = IF_SCSI;
843 max_devs = MAX_SCSI_DEVS;
844 } else if (!strcmp(buf, "floppy")) {
845 type = IF_FLOPPY;
846 max_devs = 0;
847 } else if (!strcmp(buf, "pflash")) {
848 type = IF_PFLASH;
849 max_devs = 0;
850 } else if (!strcmp(buf, "mtd")) {
851 type = IF_MTD;
852 max_devs = 0;
853 } else if (!strcmp(buf, "sd")) {
854 type = IF_SD;
855 max_devs = 0;
856 } else if (!strcmp(buf, "virtio")) {
857 type = IF_VIRTIO;
858 max_devs = 0;
859 } else if (!strcmp(buf, "xen")) {
860 type = IF_XEN;
861 max_devs = 0;
862 } else if (!strcmp(buf, "none")) {
863 type = IF_NONE;
864 max_devs = 0;
865 } else {
866 fprintf(stderr, "qemu: unsupported bus type '%s'\n", buf);
867 return NULL;
868 }
869 }
870
871 if (cyls || heads || secs) {
872 if (cyls < 1 || (type == IF_IDE && cyls > 16383)) {
873 fprintf(stderr, "qemu: '%s' invalid physical cyls number\n", buf);
874 return NULL;
875 }
876 if (heads < 1 || (type == IF_IDE && heads > 16)) {
877 fprintf(stderr, "qemu: '%s' invalid physical heads number\n", buf);
878 return NULL;
879 }
880 if (secs < 1 || (type == IF_IDE && secs > 63)) {
881 fprintf(stderr, "qemu: '%s' invalid physical secs number\n", buf);
882 return NULL;
883 }
884 }
885
886 if ((buf = qemu_opt_get(opts, "trans")) != NULL) {
887 if (!cyls) {
888 fprintf(stderr,
889 "qemu: '%s' trans must be used with cyls,heads and secs\n",
890 buf);
891 return NULL;
892 }
893 if (!strcmp(buf, "none"))
894 translation = BIOS_ATA_TRANSLATION_NONE;
895 else if (!strcmp(buf, "lba"))
896 translation = BIOS_ATA_TRANSLATION_LBA;
897 else if (!strcmp(buf, "auto"))
898 translation = BIOS_ATA_TRANSLATION_AUTO;
899 else {
900 fprintf(stderr, "qemu: '%s' invalid translation type\n", buf);
901 return NULL;
902 }
903 }
904
905 if ((buf = qemu_opt_get(opts, "media")) != NULL) {
906 if (!strcmp(buf, "disk")) {
907 media = MEDIA_DISK;
908 } else if (!strcmp(buf, "cdrom")) {
909 if (cyls || secs || heads) {
910 fprintf(stderr,
911 "qemu: '%s' invalid physical CHS format\n", buf);
912 return NULL;
913 }
914 media = MEDIA_CDROM;
915 } else {
916 fprintf(stderr, "qemu: '%s' invalid media\n", buf);
917 return NULL;
918 }
919 }
920
921 if ((buf = qemu_opt_get(opts, "cache")) != NULL) {
922 if (!strcmp(buf, "off") || !strcmp(buf, "none")) {
923 bdrv_flags |= BDRV_O_NOCACHE;
924 } else if (!strcmp(buf, "writeback")) {
925 bdrv_flags |= BDRV_O_CACHE_WB;
926 } else if (!strcmp(buf, "writethrough")) {
927 /* this is the default */
928 } else {
929 fprintf(stderr, "qemu: invalid cache option\n");
930 return NULL;
931 }
932 }
933
934 #ifdef CONFIG_LINUX_AIO
935 if ((buf = qemu_opt_get(opts, "aio")) != NULL) {
936 if (!strcmp(buf, "native")) {
937 bdrv_flags |= BDRV_O_NATIVE_AIO;
938 } else if (!strcmp(buf, "threads")) {
939 /* this is the default */
940 } else {
941 fprintf(stderr, "qemu: invalid aio option\n");
942 return NULL;
943 }
944 }
945 #endif
946
947 if ((buf = qemu_opt_get(opts, "format")) != NULL) {
948 if (strcmp(buf, "?") == 0) {
949 fprintf(stderr, "qemu: Supported formats:");
950 bdrv_iterate_format(bdrv_format_print, NULL);
951 fprintf(stderr, "\n");
952 return NULL;
953 }
954 drv = bdrv_find_whitelisted_format(buf);
955 if (!drv) {
956 fprintf(stderr, "qemu: '%s' invalid format\n", buf);
957 return NULL;
958 }
959 }
960
961 is_extboot = qemu_opt_get_bool(opts, "boot", 0);
962 if (is_extboot && extboot_drive) {
963 fprintf(stderr, "qemu: two bootable drives specified\n");
964 return NULL;
965 }
966
967 on_write_error = BLOCK_ERR_STOP_ENOSPC;
968 if ((buf = qemu_opt_get(opts, "werror")) != NULL) {
969 if (type != IF_IDE && type != IF_SCSI && type != IF_VIRTIO) {
970 fprintf(stderr, "werror is no supported by this format\n");
971 return NULL;
972 }
973
974 on_write_error = parse_block_error_action(buf, 0);
975 if (on_write_error < 0) {
976 return NULL;
977 }
978 }
979
980 on_read_error = BLOCK_ERR_REPORT;
981 if ((buf = qemu_opt_get(opts, "rerror")) != NULL) {
982 if (type != IF_IDE && type != IF_VIRTIO) {
983 fprintf(stderr, "rerror is no supported by this format\n");
984 return NULL;
985 }
986
987 on_read_error = parse_block_error_action(buf, 1);
988 if (on_read_error < 0) {
989 return NULL;
990 }
991 }
992
993 if ((devaddr = qemu_opt_get(opts, "addr")) != NULL) {
994 if (type != IF_VIRTIO) {
995 fprintf(stderr, "addr is not supported\n");
996 return NULL;
997 }
998 }
999
1000 /* compute bus and unit according index */
1001
1002 if (index != -1) {
1003 if (bus_id != 0 || unit_id != -1) {
1004 fprintf(stderr,
1005 "qemu: index cannot be used with bus and unit\n");
1006 return NULL;
1007 }
1008 if (max_devs == 0)
1009 {
1010 unit_id = index;
1011 bus_id = 0;
1012 } else {
1013 unit_id = index % max_devs;
1014 bus_id = index / max_devs;
1015 }
1016 }
1017
1018 /* if user doesn't specify a unit_id,
1019 * try to find the first free
1020 */
1021
1022 if (unit_id == -1) {
1023 unit_id = 0;
1024 while (drive_get(type, bus_id, unit_id) != NULL) {
1025 unit_id++;
1026 if (max_devs && unit_id >= max_devs) {
1027 unit_id -= max_devs;
1028 bus_id++;
1029 }
1030 }
1031 }
1032
1033 /* check unit id */
1034
1035 if (max_devs && unit_id >= max_devs) {
1036 fprintf(stderr, "qemu: unit %d too big (max is %d)\n",
1037 unit_id, max_devs - 1);
1038 return NULL;
1039 }
1040
1041 /*
1042 * ignore multiple definitions
1043 */
1044
1045 if (drive_get(type, bus_id, unit_id) != NULL) {
1046 *fatal_error = 0;
1047 return NULL;
1048 }
1049
1050 /* init */
1051
1052 dinfo = qemu_mallocz(sizeof(*dinfo));
1053 if ((buf = qemu_opts_id(opts)) != NULL) {
1054 dinfo->id = qemu_strdup(buf);
1055 } else {
1056 /* no id supplied -> create one */
1057 dinfo->id = qemu_mallocz(32);
1058 if (type == IF_IDE || type == IF_SCSI)
1059 mediastr = (media == MEDIA_CDROM) ? "-cd" : "-hd";
1060 if (max_devs)
1061 snprintf(dinfo->id, 32, "%s%i%s%i",
1062 devname, bus_id, mediastr, unit_id);
1063 else
1064 snprintf(dinfo->id, 32, "%s%s%i",
1065 devname, mediastr, unit_id);
1066 }
1067 dinfo->bdrv = bdrv_new(dinfo->id);
1068 dinfo->devaddr = devaddr;
1069 dinfo->type = type;
1070 dinfo->bus = bus_id;
1071 dinfo->unit = unit_id;
1072 dinfo->on_read_error = on_read_error;
1073 dinfo->on_write_error = on_write_error;
1074 dinfo->opts = opts;
1075 if (serial)
1076 strncpy(dinfo->serial, serial, sizeof(serial));
1077 QTAILQ_INSERT_TAIL(&drives, dinfo, next);
1078 if (is_extboot) {
1079 extboot_drive = dinfo;
1080 }
1081
1082 switch(type) {
1083 case IF_IDE:
1084 case IF_SCSI:
1085 case IF_XEN:
1086 case IF_NONE:
1087 switch(media) {
1088 case MEDIA_DISK:
1089 if (cyls != 0) {
1090 bdrv_set_geometry_hint(dinfo->bdrv, cyls, heads, secs);
1091 bdrv_set_translation_hint(dinfo->bdrv, translation);
1092 }
1093 break;
1094 case MEDIA_CDROM:
1095 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_CDROM);
1096 break;
1097 }
1098 break;
1099 case IF_SD:
1100 /* FIXME: This isn't really a floppy, but it's a reasonable
1101 approximation. */
1102 case IF_FLOPPY:
1103 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_FLOPPY);
1104 break;
1105 case IF_PFLASH:
1106 case IF_MTD:
1107 break;
1108 case IF_VIRTIO:
1109 /* add virtio block device */
1110 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
1111 qemu_opt_set(opts, "driver", "virtio-blk-pci");
1112 qemu_opt_set(opts, "drive", dinfo->id);
1113 if (devaddr)
1114 qemu_opt_set(opts, "addr", devaddr);
1115 break;
1116 case IF_COUNT:
1117 abort();
1118 }
1119 if (!file) {
1120 *fatal_error = 0;
1121 return NULL;
1122 }
1123 if (snapshot) {
1124 /* always use write-back with snapshot */
1125 bdrv_flags &= ~BDRV_O_CACHE_MASK;
1126 bdrv_flags |= (BDRV_O_SNAPSHOT|BDRV_O_CACHE_WB);
1127 }
1128
1129 if (media == MEDIA_CDROM) {
1130 /* CDROM is fine for any interface, don't check. */
1131 ro = 1;
1132 } else if (ro == 1) {
1133 if (type != IF_SCSI && type != IF_VIRTIO && type != IF_FLOPPY) {
1134 fprintf(stderr, "qemu: readonly flag not supported for drive with this interface\n");
1135 return NULL;
1136 }
1137 }
1138
1139 bdrv_flags |= ro ? 0 : BDRV_O_RDWR;
1140
1141 if (bdrv_open(dinfo->bdrv, file, bdrv_flags, drv) < 0) {
1142 fprintf(stderr, "qemu: could not open disk image %s: %s\n",
1143 file, strerror(errno));
1144 return NULL;
1145 }
1146
1147 if (bdrv_key_required(dinfo->bdrv))
1148 autostart = 0;
1149 *fatal_error = 0;
1150 return dinfo;
1151 }
1152
1153 static int drive_init_func(QemuOpts *opts, void *opaque)
1154 {
1155 QEMUMachine *machine = opaque;
1156 int fatal_error = 0;
1157
1158 if (drive_init(opts, machine, &fatal_error) == NULL) {
1159 if (fatal_error)
1160 return 1;
1161 }
1162 return 0;
1163 }
1164
1165 static int drive_enable_snapshot(QemuOpts *opts, void *opaque)
1166 {
1167 if (NULL == qemu_opt_get(opts, "snapshot")) {
1168 qemu_opt_set(opts, "snapshot", "on");
1169 }
1170 return 0;
1171 }
1172
1173 void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
1174 {
1175 boot_set_handler = func;
1176 boot_set_opaque = opaque;
1177 }
1178
1179 int qemu_boot_set(const char *boot_devices)
1180 {
1181 if (!boot_set_handler) {
1182 return -EINVAL;
1183 }
1184 return boot_set_handler(boot_set_opaque, boot_devices);
1185 }
1186
1187 static void validate_bootdevices(char *devices)
1188 {
1189 /* We just do some generic consistency checks */
1190 const char *p;
1191 int bitmap = 0;
1192
1193 for (p = devices; *p != '\0'; p++) {
1194 /* Allowed boot devices are:
1195 * a-b: floppy disk drives
1196 * c-f: IDE disk drives
1197 * g-m: machine implementation dependant drives
1198 * n-p: network devices
1199 * It's up to each machine implementation to check if the given boot
1200 * devices match the actual hardware implementation and firmware
1201 * features.
1202 */
1203 if (*p < 'a' || *p > 'p') {
1204 fprintf(stderr, "Invalid boot device '%c'\n", *p);
1205 exit(1);
1206 }
1207 if (bitmap & (1 << (*p - 'a'))) {
1208 fprintf(stderr, "Boot device '%c' was given twice\n", *p);
1209 exit(1);
1210 }
1211 bitmap |= 1 << (*p - 'a');
1212 }
1213 }
1214
1215 static void restore_boot_devices(void *opaque)
1216 {
1217 char *standard_boot_devices = opaque;
1218 static int first = 1;
1219
1220 /* Restore boot order and remove ourselves after the first boot */
1221 if (first) {
1222 first = 0;
1223 return;
1224 }
1225
1226 qemu_boot_set(standard_boot_devices);
1227
1228 qemu_unregister_reset(restore_boot_devices, standard_boot_devices);
1229 qemu_free(standard_boot_devices);
1230 }
1231
1232 static void numa_add(const char *optarg)
1233 {
1234 char option[128];
1235 char *endptr;
1236 unsigned long long value, endvalue;
1237 int nodenr;
1238
1239 optarg = get_opt_name(option, 128, optarg, ',') + 1;
1240 if (!strcmp(option, "node")) {
1241 if (get_param_value(option, 128, "nodeid", optarg) == 0) {
1242 nodenr = nb_numa_nodes;
1243 } else {
1244 nodenr = strtoull(option, NULL, 10);
1245 }
1246
1247 if (get_param_value(option, 128, "mem", optarg) == 0) {
1248 node_mem[nodenr] = 0;
1249 } else {
1250 value = strtoull(option, &endptr, 0);
1251 switch (*endptr) {
1252 case 0: case 'M': case 'm':
1253 value <<= 20;
1254 break;
1255 case 'G': case 'g':
1256 value <<= 30;
1257 break;
1258 }
1259 node_mem[nodenr] = value;
1260 }
1261 if (get_param_value(option, 128, "cpus", optarg) == 0) {
1262 node_cpumask[nodenr] = 0;
1263 } else {
1264 value = strtoull(option, &endptr, 10);
1265 if (value >= 64) {
1266 value = 63;
1267 fprintf(stderr, "only 64 CPUs in NUMA mode supported.\n");
1268 } else {
1269 if (*endptr == '-') {
1270 endvalue = strtoull(endptr+1, &endptr, 10);
1271 if (endvalue >= 63) {
1272 endvalue = 62;
1273 fprintf(stderr,
1274 "only 63 CPUs in NUMA mode supported.\n");
1275 }
1276 value = (2ULL << endvalue) - (1ULL << value);
1277 } else {
1278 value = 1ULL << value;
1279 }
1280 }
1281 node_cpumask[nodenr] = value;
1282 }
1283 nb_numa_nodes++;
1284 }
1285 return;
1286 }
1287
1288 static void smp_parse(const char *optarg)
1289 {
1290 int smp, sockets = 0, threads = 0, cores = 0;
1291 char *endptr;
1292 char option[128];
1293
1294 smp = strtoul(optarg, &endptr, 10);
1295 if (endptr != optarg) {
1296 if (*endptr == ',') {
1297 endptr++;
1298 }
1299 }
1300 if (get_param_value(option, 128, "sockets", endptr) != 0)
1301 sockets = strtoull(option, NULL, 10);
1302 if (get_param_value(option, 128, "cores", endptr) != 0)
1303 cores = strtoull(option, NULL, 10);
1304 if (get_param_value(option, 128, "threads", endptr) != 0)
1305 threads = strtoull(option, NULL, 10);
1306 if (get_param_value(option, 128, "maxcpus", endptr) != 0)
1307 max_cpus = strtoull(option, NULL, 10);
1308
1309 /* compute missing values, prefer sockets over cores over threads */
1310 if (smp == 0 || sockets == 0) {
1311 sockets = sockets > 0 ? sockets : 1;
1312 cores = cores > 0 ? cores : 1;
1313 threads = threads > 0 ? threads : 1;
1314 if (smp == 0) {
1315 smp = cores * threads * sockets;
1316 }
1317 } else {
1318 if (cores == 0) {
1319 threads = threads > 0 ? threads : 1;
1320 cores = smp / (sockets * threads);
1321 } else {
1322 if (sockets) {
1323 threads = smp / (cores * sockets);
1324 }
1325 }
1326 }
1327 smp_cpus = smp;
1328 smp_cores = cores > 0 ? cores : 1;
1329 smp_threads = threads > 0 ? threads : 1;
1330 if (max_cpus == 0)
1331 max_cpus = smp_cpus;
1332 }
1333
1334 /***********************************************************/
1335 /* USB devices */
1336
1337 static int usb_device_add(const char *devname, int is_hotplug)
1338 {
1339 const char *p;
1340 USBDevice *dev = NULL;
1341
1342 if (!usb_enabled)
1343 return -1;
1344
1345 /* drivers with .usbdevice_name entry in USBDeviceInfo */
1346 dev = usbdevice_create(devname);
1347 if (dev)
1348 goto done;
1349
1350 /* the other ones */
1351 if (strstart(devname, "host:", &p)) {
1352 dev = usb_host_device_open(p);
1353 } else if (!strcmp(devname, "bt") || strstart(devname, "bt:", &p)) {
1354 dev = usb_bt_init(devname[2] ? hci_init(p) :
1355 bt_new_hci(qemu_find_bt_vlan(0)));
1356 } else {
1357 return -1;
1358 }
1359 if (!dev)
1360 return -1;
1361
1362 done:
1363 return 0;
1364 }
1365
1366 static int usb_device_del(const char *devname)
1367 {
1368 int bus_num, addr;
1369 const char *p;
1370
1371 if (strstart(devname, "host:", &p))
1372 return usb_host_device_close(p);
1373
1374 if (!usb_enabled)
1375 return -1;
1376
1377 p = strchr(devname, '.');
1378 if (!p)
1379 return -1;
1380 bus_num = strtoul(devname, NULL, 0);
1381 addr = strtoul(p + 1, NULL, 0);
1382
1383 return usb_device_delete_addr(bus_num, addr);
1384 }
1385
1386 static int usb_parse(const char *cmdline)
1387 {
1388 int r;
1389 r = usb_device_add(cmdline, 0);
1390 if (r < 0) {
1391 fprintf(stderr, "qemu: could not add USB device '%s'\n", cmdline);
1392 }
1393 return r;
1394 }
1395
1396 void do_usb_add(Monitor *mon, const QDict *qdict)
1397 {
1398 const char *devname = qdict_get_str(qdict, "devname");
1399 if (usb_device_add(devname, 1) < 0) {
1400 error_report("could not add USB device '%s'", devname);
1401 }
1402 }
1403
1404 void do_usb_del(Monitor *mon, const QDict *qdict)
1405 {
1406 const char *devname = qdict_get_str(qdict, "devname");
1407 if (usb_device_del(devname) < 0) {
1408 error_report("could not delete USB device '%s'", devname);
1409 }
1410 }
1411
1412 /***********************************************************/
1413 /* PCMCIA/Cardbus */
1414
1415 static struct pcmcia_socket_entry_s {
1416 PCMCIASocket *socket;
1417 struct pcmcia_socket_entry_s *next;
1418 } *pcmcia_sockets = 0;
1419
1420 void pcmcia_socket_register(PCMCIASocket *socket)
1421 {
1422 struct pcmcia_socket_entry_s *entry;
1423
1424 entry = qemu_malloc(sizeof(struct pcmcia_socket_entry_s));
1425 entry->socket = socket;
1426 entry->next = pcmcia_sockets;
1427 pcmcia_sockets = entry;
1428 }
1429
1430 void pcmcia_socket_unregister(PCMCIASocket *socket)
1431 {
1432 struct pcmcia_socket_entry_s *entry, **ptr;
1433
1434 ptr = &pcmcia_sockets;
1435 for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
1436 if (entry->socket == socket) {
1437 *ptr = entry->next;
1438 qemu_free(entry);
1439 }
1440 }
1441
1442 void pcmcia_info(Monitor *mon)
1443 {
1444 struct pcmcia_socket_entry_s *iter;
1445
1446 if (!pcmcia_sockets)
1447 monitor_printf(mon, "No PCMCIA sockets\n");
1448
1449 for (iter = pcmcia_sockets; iter; iter = iter->next)
1450 monitor_printf(mon, "%s: %s\n", iter->socket->slot_string,
1451 iter->socket->attached ? iter->socket->card_string :
1452 "Empty");
1453 }
1454
1455 /***********************************************************/
1456 /* I/O handling */
1457
1458 typedef struct IOHandlerRecord {
1459 int fd;
1460 IOCanReadHandler *fd_read_poll;
1461 IOHandler *fd_read;
1462 IOHandler *fd_write;
1463 int deleted;
1464 void *opaque;
1465 /* temporary data */
1466 struct pollfd *ufd;
1467 QLIST_ENTRY(IOHandlerRecord) next;
1468 } IOHandlerRecord;
1469
1470 static QLIST_HEAD(, IOHandlerRecord) io_handlers =
1471 QLIST_HEAD_INITIALIZER(io_handlers);
1472
1473
1474 /* XXX: fd_read_poll should be suppressed, but an API change is
1475 necessary in the character devices to suppress fd_can_read(). */
1476 int qemu_set_fd_handler2(int fd,
1477 IOCanReadHandler *fd_read_poll,
1478 IOHandler *fd_read,
1479 IOHandler *fd_write,
1480 void *opaque)
1481 {
1482 IOHandlerRecord *ioh;
1483
1484 if (!fd_read && !fd_write) {
1485 QLIST_FOREACH(ioh, &io_handlers, next) {
1486 if (ioh->fd == fd) {
1487 ioh->deleted = 1;
1488 break;
1489 }
1490 }
1491 } else {
1492 QLIST_FOREACH(ioh, &io_handlers, next) {
1493 if (ioh->fd == fd)
1494 goto found;
1495 }
1496 ioh = qemu_mallocz(sizeof(IOHandlerRecord));
1497 QLIST_INSERT_HEAD(&io_handlers, ioh, next);
1498 found:
1499 ioh->fd = fd;
1500 ioh->fd_read_poll = fd_read_poll;
1501 ioh->fd_read = fd_read;
1502 ioh->fd_write = fd_write;
1503 ioh->opaque = opaque;
1504 ioh->deleted = 0;
1505 }
1506 qemu_notify_event();
1507 return 0;
1508 }
1509
1510 int qemu_set_fd_handler(int fd,
1511 IOHandler *fd_read,
1512 IOHandler *fd_write,
1513 void *opaque)
1514 {
1515 return qemu_set_fd_handler2(fd, NULL, fd_read, fd_write, opaque);
1516 }
1517
1518 #ifdef _WIN32
1519 /***********************************************************/
1520 /* Polling handling */
1521
1522 typedef struct PollingEntry {
1523 PollingFunc *func;
1524 void *opaque;
1525 struct PollingEntry *next;
1526 } PollingEntry;
1527
1528 static PollingEntry *first_polling_entry;
1529
1530 int qemu_add_polling_cb(PollingFunc *func, void *opaque)
1531 {
1532 PollingEntry **ppe, *pe;
1533 pe = qemu_mallocz(sizeof(PollingEntry));
1534 pe->func = func;
1535 pe->opaque = opaque;
1536 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next);
1537 *ppe = pe;
1538 return 0;
1539 }
1540
1541 void qemu_del_polling_cb(PollingFunc *func, void *opaque)
1542 {
1543 PollingEntry **ppe, *pe;
1544 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next) {
1545 pe = *ppe;
1546 if (pe->func == func && pe->opaque == opaque) {
1547 *ppe = pe->next;
1548 qemu_free(pe);
1549 break;
1550 }
1551 }
1552 }
1553
1554 /***********************************************************/
1555 /* Wait objects support */
1556 typedef struct WaitObjects {
1557 int num;
1558 HANDLE events[MAXIMUM_WAIT_OBJECTS + 1];
1559 WaitObjectFunc *func[MAXIMUM_WAIT_OBJECTS + 1];
1560 void *opaque[MAXIMUM_WAIT_OBJECTS + 1];
1561 } WaitObjects;
1562
1563 static WaitObjects wait_objects = {0};
1564
1565 int qemu_add_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
1566 {
1567 WaitObjects *w = &wait_objects;
1568
1569 if (w->num >= MAXIMUM_WAIT_OBJECTS)
1570 return -1;
1571 w->events[w->num] = handle;
1572 w->func[w->num] = func;
1573 w->opaque[w->num] = opaque;
1574 w->num++;
1575 return 0;
1576 }
1577
1578 void qemu_del_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
1579 {
1580 int i, found;
1581 WaitObjects *w = &wait_objects;
1582
1583 found = 0;
1584 for (i = 0; i < w->num; i++) {
1585 if (w->events[i] == handle)
1586 found = 1;
1587 if (found) {
1588 w->events[i] = w->events[i + 1];
1589 w->func[i] = w->func[i + 1];
1590 w->opaque[i] = w->opaque[i + 1];
1591 }
1592 }
1593 if (found)
1594 w->num--;
1595 }
1596 #endif
1597
1598 /***********************************************************/
1599 /* machine registration */
1600
1601 static QEMUMachine *first_machine = NULL;
1602 QEMUMachine *current_machine = NULL;
1603
1604 int qemu_register_machine(QEMUMachine *m)
1605 {
1606 QEMUMachine **pm;
1607 pm = &first_machine;
1608 while (*pm != NULL)
1609 pm = &(*pm)->next;
1610 m->next = NULL;
1611 *pm = m;
1612 return 0;
1613 }
1614
1615 static QEMUMachine *find_machine(const char *name)
1616 {
1617 QEMUMachine *m;
1618
1619 for(m = first_machine; m != NULL; m = m->next) {
1620 if (!strcmp(m->name, name))
1621 return m;
1622 if (m->alias && !strcmp(m->alias, name))
1623 return m;
1624 }
1625 return NULL;
1626 }
1627
1628 static QEMUMachine *find_default_machine(void)
1629 {
1630 QEMUMachine *m;
1631
1632 for(m = first_machine; m != NULL; m = m->next) {
1633 if (m->is_default) {
1634 return m;
1635 }
1636 }
1637 return NULL;
1638 }
1639
1640 /***********************************************************/
1641 /* main execution loop */
1642
1643 static void gui_update(void *opaque)
1644 {
1645 uint64_t interval = GUI_REFRESH_INTERVAL;
1646 DisplayState *ds = opaque;
1647 DisplayChangeListener *dcl = ds->listeners;
1648
1649 qemu_flush_coalesced_mmio_buffer();
1650 dpy_refresh(ds);
1651
1652 while (dcl != NULL) {
1653 if (dcl->gui_timer_interval &&
1654 dcl->gui_timer_interval < interval)
1655 interval = dcl->gui_timer_interval;
1656 dcl = dcl->next;
1657 }
1658 qemu_mod_timer(ds->gui_timer, interval + qemu_get_clock(rt_clock));
1659 }
1660
1661 static void nographic_update(void *opaque)
1662 {
1663 uint64_t interval = GUI_REFRESH_INTERVAL;
1664
1665 qemu_flush_coalesced_mmio_buffer();
1666 qemu_mod_timer(nographic_timer, interval + qemu_get_clock(rt_clock));
1667 }
1668
1669 struct vm_change_state_entry {
1670 VMChangeStateHandler *cb;
1671 void *opaque;
1672 QLIST_ENTRY (vm_change_state_entry) entries;
1673 };
1674
1675 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1676
1677 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1678 void *opaque)
1679 {
1680 VMChangeStateEntry *e;
1681
1682 e = qemu_mallocz(sizeof (*e));
1683
1684 e->cb = cb;
1685 e->opaque = opaque;
1686 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1687 return e;
1688 }
1689
1690 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1691 {
1692 QLIST_REMOVE (e, entries);
1693 qemu_free (e);
1694 }
1695
1696 void vm_state_notify(int running, int reason)
1697 {
1698 VMChangeStateEntry *e;
1699
1700 for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
1701 e->cb(e->opaque, running, reason);
1702 }
1703 }
1704
1705 void vm_start(void)
1706 {
1707 if (!vm_running) {
1708 cpu_enable_ticks();
1709 vm_running = 1;
1710 vm_state_notify(1, 0);
1711 resume_all_vcpus();
1712 monitor_protocol_event(QEVENT_RESUME, NULL);
1713 }
1714 }
1715
1716 /* reset/shutdown handler */
1717
1718 typedef struct QEMUResetEntry {
1719 QTAILQ_ENTRY(QEMUResetEntry) entry;
1720 QEMUResetHandler *func;
1721 void *opaque;
1722 } QEMUResetEntry;
1723
1724 static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
1725 QTAILQ_HEAD_INITIALIZER(reset_handlers);
1726 static int reset_requested;
1727 static int shutdown_requested;
1728 static int powerdown_requested;
1729 int debug_requested;
1730 int vmstop_requested;
1731
1732 int qemu_no_shutdown(void)
1733 {
1734 int r = no_shutdown;
1735 no_shutdown = 0;
1736 return r;
1737 }
1738
1739 int qemu_shutdown_requested(void)
1740 {
1741 int r = shutdown_requested;
1742 shutdown_requested = 0;
1743 return r;
1744 }
1745
1746 int qemu_reset_requested(void)
1747 {
1748 int r = reset_requested;
1749 reset_requested = 0;
1750 return r;
1751 }
1752
1753 int qemu_powerdown_requested(void)
1754 {
1755 int r = powerdown_requested;
1756 powerdown_requested = 0;
1757 return r;
1758 }
1759
1760 static int qemu_debug_requested(void)
1761 {
1762 int r = debug_requested;
1763 debug_requested = 0;
1764 return r;
1765 }
1766
1767 static int qemu_vmstop_requested(void)
1768 {
1769 int r = vmstop_requested;
1770 vmstop_requested = 0;
1771 return r;
1772 }
1773
1774 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
1775 {
1776 QEMUResetEntry *re = qemu_mallocz(sizeof(QEMUResetEntry));
1777
1778 re->func = func;
1779 re->opaque = opaque;
1780 QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
1781 }
1782
1783 void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
1784 {
1785 QEMUResetEntry *re;
1786
1787 QTAILQ_FOREACH(re, &reset_handlers, entry) {
1788 if (re->func == func && re->opaque == opaque) {
1789 QTAILQ_REMOVE(&reset_handlers, re, entry);
1790 qemu_free(re);
1791 return;
1792 }
1793 }
1794 }
1795
1796 void qemu_system_reset(void)
1797 {
1798 QEMUResetEntry *re, *nre;
1799
1800 /* reset all devices */
1801 QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
1802 re->func(re->opaque);
1803 }
1804 monitor_protocol_event(QEVENT_RESET, NULL);
1805 cpu_synchronize_all_post_reset();
1806 }
1807
1808 void qemu_system_reset_request(void)
1809 {
1810 if (no_reboot) {
1811 shutdown_requested = 1;
1812 } else {
1813 reset_requested = 1;
1814 }
1815 if (cpu_single_env) {
1816 cpu_single_env->stopped = 1;
1817 }
1818 qemu_notify_event();
1819 }
1820
1821 void qemu_system_shutdown_request(void)
1822 {
1823 shutdown_requested = 1;
1824 qemu_notify_event();
1825 }
1826
1827 void qemu_system_powerdown_request(void)
1828 {
1829 powerdown_requested = 1;
1830 qemu_notify_event();
1831 }
1832
1833 #ifdef _WIN32
1834 static void host_main_loop_wait(int *timeout)
1835 {
1836 int ret, ret2, i;
1837 PollingEntry *pe;
1838
1839
1840 /* XXX: need to suppress polling by better using win32 events */
1841 ret = 0;
1842 for(pe = first_polling_entry; pe != NULL; pe = pe->next) {
1843 ret |= pe->func(pe->opaque);
1844 }
1845 if (ret == 0) {
1846 int err;
1847 WaitObjects *w = &wait_objects;
1848
1849 ret = WaitForMultipleObjects(w->num, w->events, FALSE, *timeout);
1850 if (WAIT_OBJECT_0 + 0 <= ret && ret <= WAIT_OBJECT_0 + w->num - 1) {
1851 if (w->func[ret - WAIT_OBJECT_0])
1852 w->func[ret - WAIT_OBJECT_0](w->opaque[ret - WAIT_OBJECT_0]);
1853
1854 /* Check for additional signaled events */
1855 for(i = (ret - WAIT_OBJECT_0 + 1); i < w->num; i++) {
1856
1857 /* Check if event is signaled */
1858 ret2 = WaitForSingleObject(w->events[i], 0);
1859 if(ret2 == WAIT_OBJECT_0) {
1860 if (w->func[i])
1861 w->func[i](w->opaque[i]);
1862 } else if (ret2 == WAIT_TIMEOUT) {
1863 } else {
1864 err = GetLastError();
1865 fprintf(stderr, "WaitForSingleObject error %d %d\n", i, err);
1866 }
1867 }
1868 } else if (ret == WAIT_TIMEOUT) {
1869 } else {
1870 err = GetLastError();
1871 fprintf(stderr, "WaitForMultipleObjects error %d %d\n", ret, err);
1872 }
1873 }
1874
1875 *timeout = 0;
1876 }
1877 #else
1878 static void host_main_loop_wait(int *timeout)
1879 {
1880 }
1881 #endif
1882
1883 void main_loop_wait(int nonblocking)
1884 {
1885 IOHandlerRecord *ioh;
1886 fd_set rfds, wfds, xfds;
1887 int ret, nfds;
1888 struct timeval tv;
1889 int timeout;
1890
1891 if (nonblocking)
1892 timeout = 0;
1893 else {
1894 timeout = qemu_calculate_timeout();
1895 qemu_bh_update_timeout(&timeout);
1896 }
1897
1898 host_main_loop_wait(&timeout);
1899
1900 /* poll any events */
1901 /* XXX: separate device handlers from system ones */
1902 nfds = -1;
1903 FD_ZERO(&rfds);
1904 FD_ZERO(&wfds);
1905 FD_ZERO(&xfds);
1906 QLIST_FOREACH(ioh, &io_handlers, next) {
1907 if (ioh->deleted)
1908 continue;
1909 if (ioh->fd_read &&
1910 (!ioh->fd_read_poll ||
1911 ioh->fd_read_poll(ioh->opaque) != 0)) {
1912 FD_SET(ioh->fd, &rfds);
1913 if (ioh->fd > nfds)
1914 nfds = ioh->fd;
1915 }
1916 if (ioh->fd_write) {
1917 FD_SET(ioh->fd, &wfds);
1918 if (ioh->fd > nfds)
1919 nfds = ioh->fd;
1920 }
1921 }
1922
1923 tv.tv_sec = timeout / 1000;
1924 tv.tv_usec = (timeout % 1000) * 1000;
1925
1926 slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
1927
1928 qemu_mutex_unlock_iothread();
1929 ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
1930 qemu_mutex_lock_iothread();
1931 if (ret > 0) {
1932 IOHandlerRecord *pioh;
1933
1934 QLIST_FOREACH_SAFE(ioh, &io_handlers, next, pioh) {
1935 if (ioh->deleted) {
1936 QLIST_REMOVE(ioh, next);
1937 qemu_free(ioh);
1938 continue;
1939 }
1940 if (ioh->fd_read && FD_ISSET(ioh->fd, &rfds)) {
1941 ioh->fd_read(ioh->opaque);
1942 if (!(ioh->fd_read_poll && ioh->fd_read_poll(ioh->opaque)))
1943 FD_CLR(ioh->fd, &rfds);
1944 }
1945 if (ioh->fd_write && FD_ISSET(ioh->fd, &wfds)) {
1946 ioh->fd_write(ioh->opaque);
1947 }
1948 }
1949 }
1950
1951 slirp_select_poll(&rfds, &wfds, &xfds, (ret < 0));
1952
1953 qemu_run_all_timers();
1954
1955 /* Check bottom-halves last in case any of the earlier events triggered
1956 them. */
1957 qemu_bh_poll();
1958
1959 }
1960
1961 static int vm_can_run(void)
1962 {
1963 if (powerdown_requested)
1964 return 0;
1965 if (reset_requested)
1966 return 0;
1967 if (shutdown_requested)
1968 return 0;
1969 if (debug_requested)
1970 return 0;
1971 return 1;
1972 }
1973
1974 qemu_irq qemu_system_powerdown;
1975
1976 static void main_loop(void)
1977 {
1978 int r;
1979
1980 if (kvm_enabled()) {
1981 kvm_main_loop();
1982 cpu_disable_ticks();
1983 return;
1984 }
1985
1986 qemu_main_loop_start();
1987
1988 for (;;) {
1989 do {
1990 bool nonblocking = false;
1991 #ifdef CONFIG_PROFILER
1992 int64_t ti;
1993 #endif
1994 #ifndef CONFIG_IOTHREAD
1995 nonblocking = tcg_cpu_exec();
1996 #endif
1997 #ifdef CONFIG_PROFILER
1998 ti = profile_getclock();
1999 #endif
2000 main_loop_wait(nonblocking);
2001 #ifdef CONFIG_PROFILER
2002 dev_time += profile_getclock() - ti;
2003 #endif
2004 } while (vm_can_run());
2005
2006 if ((r = qemu_debug_requested())) {
2007 vm_stop(r);
2008 }
2009 if (qemu_shutdown_requested()) {
2010 monitor_protocol_event(QEVENT_SHUTDOWN, NULL);
2011 if (no_shutdown) {
2012 vm_stop(0);
2013 no_shutdown = 0;
2014 } else
2015 break;
2016 }
2017 if (qemu_reset_requested()) {
2018 pause_all_vcpus();
2019 qemu_system_reset();
2020 resume_all_vcpus();
2021 }
2022 if (qemu_powerdown_requested()) {
2023 monitor_protocol_event(QEVENT_POWERDOWN, NULL);
2024 qemu_irq_raise(qemu_system_powerdown);
2025 }
2026 if ((r = qemu_vmstop_requested())) {
2027 vm_stop(r);
2028 }
2029 }
2030 pause_all_vcpus();
2031 }
2032
2033 static void version(void)
2034 {
2035 printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
2036 }
2037
2038 static void help(int exitcode)
2039 {
2040 const char *options_help =
2041 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
2042 opt_help
2043 #define DEFHEADING(text) stringify(text) "\n"
2044 #include "qemu-options.h"
2045 #undef DEF
2046 #undef DEFHEADING
2047 #undef GEN_DOCS
2048 ;
2049 version();
2050 printf("usage: %s [options] [disk_image]\n"
2051 "\n"
2052 "'disk_image' is a raw hard disk image for IDE hard disk 0\n"
2053 "\n"
2054 "%s\n"
2055 "During emulation, the following keys are useful:\n"
2056 "ctrl-alt-f toggle full screen\n"
2057 "ctrl-alt-n switch to virtual console 'n'\n"
2058 "ctrl-alt toggle mouse and keyboard grab\n"
2059 "\n"
2060 "When using -nographic, press 'ctrl-a h' to get some help.\n",
2061 "qemu",
2062 options_help);
2063 exit(exitcode);
2064 }
2065
2066 #define HAS_ARG 0x0001
2067
2068 enum {
2069 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
2070 opt_enum,
2071 #define DEFHEADING(text)
2072 #include "qemu-options.h"
2073 #undef DEF
2074 #undef DEFHEADING
2075 #undef GEN_DOCS
2076 };
2077
2078 typedef struct QEMUOption {
2079 const char *name;
2080 int flags;
2081 int index;
2082 uint32_t arch_mask;
2083 } QEMUOption;
2084
2085 static const QEMUOption qemu_options[] = {
2086 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
2087 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
2088 { option, opt_arg, opt_enum, arch_mask },
2089 #define DEFHEADING(text)
2090 #include "qemu-options.h"
2091 #undef DEF
2092 #undef DEFHEADING
2093 #undef GEN_DOCS
2094 { NULL },
2095 };
2096 static void select_vgahw (const char *p)
2097 {
2098 const char *opts;
2099
2100 default_vga = 0;
2101 vga_interface_type = VGA_NONE;
2102 if (strstart(p, "std", &opts)) {
2103 vga_interface_type = VGA_STD;
2104 } else if (strstart(p, "cirrus", &opts)) {
2105 vga_interface_type = VGA_CIRRUS;
2106 } else if (strstart(p, "vmware", &opts)) {
2107 vga_interface_type = VGA_VMWARE;
2108 } else if (strstart(p, "xenfb", &opts)) {
2109 vga_interface_type = VGA_XENFB;
2110 } else if (!strstart(p, "none", &opts)) {
2111 invalid_vga:
2112 fprintf(stderr, "Unknown vga type: %s\n", p);
2113 exit(1);
2114 }
2115 while (*opts) {
2116 const char *nextopt;
2117
2118 if (strstart(opts, ",retrace=", &nextopt)) {
2119 opts = nextopt;
2120 if (strstart(opts, "dumb", &nextopt))
2121 vga_retrace_method = VGA_RETRACE_DUMB;
2122 else if (strstart(opts, "precise", &nextopt))
2123 vga_retrace_method = VGA_RETRACE_PRECISE;
2124 else goto invalid_vga;
2125 } else goto invalid_vga;
2126 opts = nextopt;
2127 }
2128 }
2129
2130 static int balloon_parse(const char *arg)
2131 {
2132 QemuOpts *opts;
2133
2134 if (strcmp(arg, "none") == 0) {
2135 return 0;
2136 }
2137
2138 if (!strncmp(arg, "virtio", 6)) {
2139 if (arg[6] == ',') {
2140 /* have params -> parse them */
2141 opts = qemu_opts_parse(&qemu_device_opts, arg+7, 0);
2142 if (!opts)
2143 return -1;
2144 } else {
2145 /* create empty opts */
2146 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2147 }
2148 qemu_opt_set(opts, "driver", "virtio-balloon-pci");
2149 return 0;
2150 }
2151
2152 return -1;
2153 }
2154
2155 #ifdef _WIN32
2156 static BOOL WINAPI qemu_ctrl_handler(DWORD type)
2157 {
2158 exit(STATUS_CONTROL_C_EXIT);
2159 return TRUE;
2160 }
2161 #endif
2162
2163 #ifndef _WIN32
2164
2165 static void termsig_handler(int signal)
2166 {
2167 qemu_system_shutdown_request();
2168 }
2169
2170 static void sigchld_handler(int signal)
2171 {
2172 waitpid(-1, NULL, WNOHANG);
2173 }
2174
2175 static void sighandler_setup(void)
2176 {
2177 struct sigaction act;
2178
2179 memset(&act, 0, sizeof(act));
2180 act.sa_handler = termsig_handler;
2181 sigaction(SIGINT, &act, NULL);
2182 sigaction(SIGHUP, &act, NULL);
2183 sigaction(SIGTERM, &act, NULL);
2184
2185 act.sa_handler = sigchld_handler;
2186 act.sa_flags = SA_NOCLDSTOP;
2187 sigaction(SIGCHLD, &act, NULL);
2188 }
2189
2190 #endif
2191
2192 #ifdef _WIN32
2193 /* Look for support files in the same directory as the executable. */
2194 static char *find_datadir(const char *argv0)
2195 {
2196 char *p;
2197 char buf[MAX_PATH];
2198 DWORD len;
2199
2200 len = GetModuleFileName(NULL, buf, sizeof(buf) - 1);
2201 if (len == 0) {
2202 return NULL;
2203 }
2204
2205 buf[len] = 0;
2206 p = buf + len - 1;
2207 while (p != buf && *p != '\\')
2208 p--;
2209 *p = 0;
2210 if (access(buf, R_OK) == 0) {
2211 return qemu_strdup(buf);
2212 }
2213 return NULL;
2214 }
2215 #else /* !_WIN32 */
2216
2217 /* Find a likely location for support files using the location of the binary.
2218 For installed binaries this will be "$bindir/../share/qemu". When
2219 running from the build tree this will be "$bindir/../pc-bios". */
2220 #define SHARE_SUFFIX "/share/qemu"
2221 #define BUILD_SUFFIX "/pc-bios"
2222 static char *find_datadir(const char *argv0)
2223 {
2224 char *dir;
2225 char *p = NULL;
2226 char *res;
2227 char buf[PATH_MAX];
2228 size_t max_len;
2229
2230 #if defined(__linux__)
2231 {
2232 int len;
2233 len = readlink("/proc/self/exe", buf, sizeof(buf) - 1);
2234 if (len > 0) {
2235 buf[len] = 0;
2236 p = buf;
2237 }
2238 }
2239 #elif defined(__FreeBSD__)
2240 {
2241 static int mib[4] = {CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, -1};
2242 size_t len = sizeof(buf) - 1;
2243
2244 *buf = '\0';
2245 if (!sysctl(mib, sizeof(mib)/sizeof(*mib), buf, &len, NULL, 0) &&
2246 *buf) {
2247 buf[sizeof(buf) - 1] = '\0';
2248 p = buf;
2249 }
2250 }
2251 #endif
2252 /* If we don't have any way of figuring out the actual executable
2253 location then try argv[0]. */
2254 if (!p) {
2255 p = realpath(argv0, buf);
2256 if (!p) {
2257 return NULL;
2258 }
2259 }
2260 dir = dirname(p);
2261 dir = dirname(dir);
2262
2263 max_len = strlen(dir) +
2264 MAX(strlen(SHARE_SUFFIX), strlen(BUILD_SUFFIX)) + 1;
2265 res = qemu_mallocz(max_len);
2266 snprintf(res, max_len, "%s%s", dir, SHARE_SUFFIX);
2267 if (access(res, R_OK)) {
2268 snprintf(res, max_len, "%s%s", dir, BUILD_SUFFIX);
2269 if (access(res, R_OK)) {
2270 qemu_free(res);
2271 res = NULL;
2272 }
2273 }
2274
2275 return res;
2276 }
2277 #undef SHARE_SUFFIX
2278 #undef BUILD_SUFFIX
2279 #endif
2280
2281 char *qemu_find_file(int type, const char *name)
2282 {
2283 int len;
2284 const char *subdir;
2285 char *buf;
2286
2287 /* If name contains path separators then try it as a straight path. */
2288 if ((strchr(name, '/') || strchr(name, '\\'))
2289 && access(name, R_OK) == 0) {
2290 return qemu_strdup(name);
2291 }
2292 switch (type) {
2293 case QEMU_FILE_TYPE_BIOS:
2294 subdir = "";
2295 break;
2296 case QEMU_FILE_TYPE_KEYMAP:
2297 subdir = "keymaps/";
2298 break;
2299 default:
2300 abort();
2301 }
2302 len = strlen(data_dir) + strlen(name) + strlen(subdir) + 2;
2303 buf = qemu_mallocz(len);
2304 snprintf(buf, len, "%s/%s%s", data_dir, subdir, name);
2305 if (access(buf, R_OK)) {
2306 qemu_free(buf);
2307 return NULL;
2308 }
2309 return buf;
2310 }
2311
2312 static int device_help_func(QemuOpts *opts, void *opaque)
2313 {
2314 return qdev_device_help(opts);
2315 }
2316
2317 static int device_init_func(QemuOpts *opts, void *opaque)
2318 {
2319 DeviceState *dev;
2320
2321 dev = qdev_device_add(opts);
2322 if (!dev)
2323 return -1;
2324 return 0;
2325 }
2326
2327 static int chardev_init_func(QemuOpts *opts, void *opaque)
2328 {
2329 CharDriverState *chr;
2330
2331 chr = qemu_chr_open_opts(opts, NULL);
2332 if (!chr)
2333 return -1;
2334 return 0;
2335 }
2336
2337 #ifdef CONFIG_LINUX
2338 static int fsdev_init_func(QemuOpts *opts, void *opaque)
2339 {
2340 int ret;
2341 ret = qemu_fsdev_add(opts);
2342
2343 return ret;
2344 }
2345 #endif
2346
2347 static int mon_init_func(QemuOpts *opts, void *opaque)
2348 {
2349 CharDriverState *chr;
2350 const char *chardev;
2351 const char *mode;
2352 int flags;
2353
2354 mode = qemu_opt_get(opts, "mode");
2355 if (mode == NULL) {
2356 mode = "readline";
2357 }
2358 if (strcmp(mode, "readline") == 0) {
2359 flags = MONITOR_USE_READLINE;
2360 } else if (strcmp(mode, "control") == 0) {
2361 flags = MONITOR_USE_CONTROL;
2362 } else {
2363 fprintf(stderr, "unknown monitor mode \"%s\"\n", mode);
2364 exit(1);
2365 }
2366
2367 if (qemu_opt_get_bool(opts, "default", 0))
2368 flags |= MONITOR_IS_DEFAULT;
2369
2370 chardev = qemu_opt_get(opts, "chardev");
2371 chr = qemu_chr_find(chardev);
2372 if (chr == NULL) {
2373 fprintf(stderr, "chardev \"%s\" not found\n", chardev);
2374 exit(1);
2375 }
2376
2377 monitor_init(chr, flags);
2378 return 0;
2379 }
2380
2381 static void monitor_parse(const char *optarg, const char *mode)
2382 {
2383 static int monitor_device_index = 0;
2384 QemuOpts *opts;
2385 const char *p;
2386 char label[32];
2387 int def = 0;
2388
2389 if (strstart(optarg, "chardev:", &p)) {
2390 snprintf(label, sizeof(label), "%s", p);
2391 } else {
2392 snprintf(label, sizeof(label), "compat_monitor%d",
2393 monitor_device_index);
2394 if (monitor_device_index == 0) {
2395 def = 1;
2396 }
2397 opts = qemu_chr_parse_compat(label, optarg);
2398 if (!opts) {
2399 fprintf(stderr, "parse error: %s\n", optarg);
2400 exit(1);
2401 }
2402 }
2403
2404 opts = qemu_opts_create(&qemu_mon_opts, label, 1);
2405 if (!opts) {
2406 fprintf(stderr, "duplicate chardev: %s\n", label);
2407 exit(1);
2408 }
2409 qemu_opt_set(opts, "mode", mode);
2410 qemu_opt_set(opts, "chardev", label);
2411 if (def)
2412 qemu_opt_set(opts, "default", "on");
2413 monitor_device_index++;
2414 }
2415
2416 struct device_config {
2417 enum {
2418 DEV_USB, /* -usbdevice */
2419 DEV_BT, /* -bt */
2420 DEV_SERIAL, /* -serial */
2421 DEV_PARALLEL, /* -parallel */
2422 DEV_VIRTCON, /* -virtioconsole */
2423 DEV_DEBUGCON, /* -debugcon */
2424 } type;
2425 const char *cmdline;
2426 QTAILQ_ENTRY(device_config) next;
2427 };
2428 QTAILQ_HEAD(, device_config) device_configs = QTAILQ_HEAD_INITIALIZER(device_configs);
2429
2430 static void add_device_config(int type, const char *cmdline)
2431 {
2432 struct device_config *conf;
2433
2434 conf = qemu_mallocz(sizeof(*conf));
2435 conf->type = type;
2436 conf->cmdline = cmdline;
2437 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2438 }
2439
2440 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2441 {
2442 struct device_config *conf;
2443 int rc;
2444
2445 QTAILQ_FOREACH(conf, &device_configs, next) {
2446 if (conf->type != type)
2447 continue;
2448 rc = func(conf->cmdline);
2449 if (0 != rc)
2450 return rc;
2451 }
2452 return 0;
2453 }
2454
2455 static int serial_parse(const char *devname)
2456 {
2457 static int index = 0;
2458 char label[32];
2459
2460 if (strcmp(devname, "none") == 0)
2461 return 0;
2462 if (index == MAX_SERIAL_PORTS) {
2463 fprintf(stderr, "qemu: too many serial ports\n");
2464 exit(1);
2465 }
2466 snprintf(label, sizeof(label), "serial%d", index);
2467 serial_hds[index] = qemu_chr_open(label, devname, NULL);
2468 if (!serial_hds[index]) {
2469 fprintf(stderr, "qemu: could not open serial device '%s': %s\n",
2470 devname, strerror(errno));
2471 return -1;
2472 }
2473 index++;
2474 return 0;
2475 }
2476
2477 static int parallel_parse(const char *devname)
2478 {
2479 static int index = 0;
2480 char label[32];
2481
2482 if (strcmp(devname, "none") == 0)
2483 return 0;
2484 if (index == MAX_PARALLEL_PORTS) {
2485 fprintf(stderr, "qemu: too many parallel ports\n");
2486 exit(1);
2487 }
2488 snprintf(label, sizeof(label), "parallel%d", index);
2489 parallel_hds[index] = qemu_chr_open(label, devname, NULL);
2490 if (!parallel_hds[index]) {
2491 fprintf(stderr, "qemu: could not open parallel device '%s': %s\n",
2492 devname, strerror(errno));
2493 return -1;
2494 }
2495 index++;
2496 return 0;
2497 }
2498
2499 static int virtcon_parse(const char *devname)
2500 {
2501 static int index = 0;
2502 char label[32];
2503 QemuOpts *bus_opts, *dev_opts;
2504
2505 if (strcmp(devname, "none") == 0)
2506 return 0;
2507 if (index == MAX_VIRTIO_CONSOLES) {
2508 fprintf(stderr, "qemu: too many virtio consoles\n");
2509 exit(1);
2510 }
2511
2512 bus_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2513 qemu_opt_set(bus_opts, "driver", "virtio-serial");
2514
2515 dev_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2516 qemu_opt_set(dev_opts, "driver", "virtconsole");
2517
2518 snprintf(label, sizeof(label), "virtcon%d", index);
2519 virtcon_hds[index] = qemu_chr_open(label, devname, NULL);
2520 if (!virtcon_hds[index]) {
2521 fprintf(stderr, "qemu: could not open virtio console '%s': %s\n",
2522 devname, strerror(errno));
2523 return -1;
2524 }
2525 qemu_opt_set(dev_opts, "chardev", label);
2526
2527 index++;
2528 return 0;
2529 }
2530
2531 static int debugcon_parse(const char *devname)
2532 {
2533 QemuOpts *opts;
2534
2535 if (!qemu_chr_open("debugcon", devname, NULL)) {
2536 exit(1);
2537 }
2538 opts = qemu_opts_create(&qemu_device_opts, "debugcon", 1);
2539 if (!opts) {
2540 fprintf(stderr, "qemu: already have a debugcon device\n");
2541 exit(1);
2542 }
2543 qemu_opt_set(opts, "driver", "isa-debugcon");
2544 qemu_opt_set(opts, "chardev", "debugcon");
2545 return 0;
2546 }
2547
2548 static const QEMUOption *lookup_opt(int argc, char **argv,
2549 const char **poptarg, int *poptind)
2550 {
2551 const QEMUOption *popt;
2552 int optind = *poptind;
2553 char *r = argv[optind];
2554 const char *optarg;
2555
2556 loc_set_cmdline(argv, optind, 1);
2557 optind++;
2558 /* Treat --foo the same as -foo. */
2559 if (r[1] == '-')
2560 r++;
2561 popt = qemu_options;
2562 for(;;) {
2563 if (!popt->name) {
2564 error_report("invalid option");
2565 exit(1);
2566 }
2567 if (!strcmp(popt->name, r + 1))
2568 break;
2569 popt++;
2570 }
2571 if (popt->flags & HAS_ARG) {
2572 if (optind >= argc) {
2573 error_report("requires an argument");
2574 exit(1);
2575 }
2576 optarg = argv[optind++];
2577 loc_set_cmdline(argv, optind - 2, 2);
2578 } else {
2579 optarg = NULL;
2580 }
2581
2582 *poptarg = optarg;
2583 *poptind = optind;
2584
2585 return popt;
2586 }
2587
2588 int main(int argc, char **argv, char **envp)
2589 {
2590 const char *gdbstub_dev = NULL;
2591 int i;
2592 int snapshot, linux_boot;
2593 const char *icount_option = NULL;
2594 const char *initrd_filename;
2595 const char *kernel_filename, *kernel_cmdline;
2596 char boot_devices[33] = "cad"; /* default to HD->floppy->CD-ROM */
2597 DisplayState *ds;
2598 DisplayChangeListener *dcl;
2599 int cyls, heads, secs, translation;
2600 QemuOpts *hda_opts = NULL, *opts;
2601 int optind;
2602 const char *optarg;
2603 const char *loadvm = NULL;
2604 QEMUMachine *machine;
2605 const char *cpu_model;
2606 #ifndef _WIN32
2607 int fds[2];
2608 #endif
2609 int tb_size;
2610 const char *pid_file = NULL;
2611 const char *incoming = NULL;
2612 #ifndef _WIN32
2613 int fd = 0;
2614 struct passwd *pwd = NULL;
2615 const char *chroot_dir = NULL;
2616 const char *run_as = NULL;
2617 #endif
2618 int show_vnc_port = 0;
2619 int defconfig = 1;
2620
2621 error_set_progname(argv[0]);
2622
2623 init_clocks();
2624
2625 qemu_cache_utils_init(envp);
2626
2627 QLIST_INIT (&vm_change_state_head);
2628 #ifndef _WIN32
2629 {
2630 struct sigaction act;
2631 sigfillset(&act.sa_mask);
2632 act.sa_flags = 0;
2633 act.sa_handler = SIG_IGN;
2634 sigaction(SIGPIPE, &act, NULL);
2635 }
2636 #else
2637 SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE);
2638 /* Note: cpu_interrupt() is currently not SMP safe, so we force
2639 QEMU to run on a single CPU */
2640 {
2641 HANDLE h;
2642 DWORD mask, smask;
2643 int i;
2644 h = GetCurrentProcess();
2645 if (GetProcessAffinityMask(h, &mask, &smask)) {
2646 for(i = 0; i < 32; i++) {
2647 if (mask & (1 << i))
2648 break;
2649 }
2650 if (i != 32) {
2651 mask = 1 << i;
2652 SetProcessAffinityMask(h, mask);
2653 }
2654 }
2655 }
2656 #endif
2657
2658 module_call_init(MODULE_INIT_MACHINE);
2659 machine = find_default_machine();
2660 cpu_model = NULL;
2661 initrd_filename = NULL;
2662 ram_size = 0;
2663 snapshot = 0;
2664 kernel_filename = NULL;
2665 kernel_cmdline = "";
2666 cyls = heads = secs = 0;
2667 translation = BIOS_ATA_TRANSLATION_AUTO;
2668
2669 for (i = 0; i < MAX_NODES; i++) {
2670 node_mem[i] = 0;
2671 node_cpumask[i] = 0;
2672 }
2673
2674 assigned_devices_index = 0;
2675
2676 nb_numa_nodes = 0;
2677 nb_nics = 0;
2678
2679 tb_size = 0;
2680 autostart= 1;
2681
2682 /* first pass of option parsing */
2683 optind = 1;
2684 while (optind < argc) {
2685 if (argv[optind][0] != '-') {
2686 /* disk image */
2687 optind++;
2688 continue;
2689 } else {
2690 const QEMUOption *popt;
2691
2692 popt = lookup_opt(argc, argv, &optarg, &optind);
2693 switch (popt->index) {
2694 case QEMU_OPTION_nodefconfig:
2695 defconfig=0;
2696 break;
2697 }
2698 }
2699 }
2700
2701 if (defconfig) {
2702 int ret;
2703
2704 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2705 if (ret < 0 && ret != -ENOENT) {
2706 exit(1);
2707 }
2708
2709 ret = qemu_read_config_file(arch_config_name);
2710 if (ret < 0 && ret != -ENOENT) {
2711 exit(1);
2712 }
2713 }
2714 cpudef_init();
2715
2716 /* second pass of option parsing */
2717 optind = 1;
2718 for(;;) {
2719 if (optind >= argc)
2720 break;
2721 if (argv[optind][0] != '-') {
2722 hda_opts = drive_add(argv[optind++], HD_ALIAS, 0);
2723 } else {
2724 const QEMUOption *popt;
2725
2726 popt = lookup_opt(argc, argv, &optarg, &optind);
2727 if (!(popt->arch_mask & arch_type)) {
2728 printf("Option %s not supported for this target\n", popt->name);
2729 exit(1);
2730 }
2731 switch(popt->index) {
2732 case QEMU_OPTION_M:
2733 machine = find_machine(optarg);
2734 if (!machine) {
2735 QEMUMachine *m;
2736 printf("Supported machines are:\n");
2737 for(m = first_machine; m != NULL; m = m->next) {
2738 if (m->alias)
2739 printf("%-10s %s (alias of %s)\n",
2740 m->alias, m->desc, m->name);
2741 printf("%-10s %s%s\n",
2742 m->name, m->desc,
2743 m->is_default ? " (default)" : "");
2744 }
2745 exit(*optarg != '?');
2746 }
2747 break;
2748 case QEMU_OPTION_cpu:
2749 /* hw initialization will check this */
2750 if (*optarg == '?') {
2751 list_cpus(stdout, &fprintf, optarg);
2752 exit(0);
2753 } else {
2754 cpu_model = optarg;
2755 }
2756 break;
2757 case QEMU_OPTION_initrd:
2758 initrd_filename = optarg;
2759 break;
2760 case QEMU_OPTION_hda:
2761 if (cyls == 0)
2762 hda_opts = drive_add(optarg, HD_ALIAS, 0);
2763 else
2764 hda_opts = drive_add(optarg, HD_ALIAS
2765 ",cyls=%d,heads=%d,secs=%d%s",
2766 0, cyls, heads, secs,
2767 translation == BIOS_ATA_TRANSLATION_LBA ?
2768 ",trans=lba" :
2769 translation == BIOS_ATA_TRANSLATION_NONE ?
2770 ",trans=none" : "");
2771 break;
2772 case QEMU_OPTION_hdb:
2773 case QEMU_OPTION_hdc:
2774 case QEMU_OPTION_hdd:
2775 drive_add(optarg, HD_ALIAS, popt->index - QEMU_OPTION_hda);
2776 break;
2777 case QEMU_OPTION_drive:
2778 drive_add(NULL, "%s", optarg);
2779 break;
2780 case QEMU_OPTION_set:
2781 if (qemu_set_option(optarg) != 0)
2782 exit(1);
2783 break;
2784 case QEMU_OPTION_global:
2785 if (qemu_global_option(optarg) != 0)
2786 exit(1);
2787 break;
2788 case QEMU_OPTION_mtdblock:
2789 drive_add(optarg, MTD_ALIAS);
2790 break;
2791 case QEMU_OPTION_sd:
2792 drive_add(optarg, SD_ALIAS);
2793 break;
2794 case QEMU_OPTION_pflash:
2795 drive_add(optarg, PFLASH_ALIAS);
2796 break;
2797 case QEMU_OPTION_snapshot:
2798 snapshot = 1;
2799 break;
2800 case QEMU_OPTION_hdachs:
2801 {
2802 const char *p;
2803 p = optarg;
2804 cyls = strtol(p, (char **)&p, 0);
2805 if (cyls < 1 || cyls > 16383)
2806 goto chs_fail;
2807 if (*p != ',')
2808 goto chs_fail;
2809 p++;
2810 heads = strtol(p, (char **)&p, 0);
2811 if (heads < 1 || heads > 16)
2812 goto chs_fail;
2813 if (*p != ',')
2814 goto chs_fail;
2815 p++;
2816 secs = strtol(p, (char **)&p, 0);
2817 if (secs < 1 || secs > 63)
2818 goto chs_fail;
2819 if (*p == ',') {
2820 p++;
2821 if (!strcmp(p, "none"))
2822 translation = BIOS_ATA_TRANSLATION_NONE;
2823 else if (!strcmp(p, "lba"))
2824 translation = BIOS_ATA_TRANSLATION_LBA;
2825 else if (!strcmp(p, "auto"))
2826 translation = BIOS_ATA_TRANSLATION_AUTO;
2827 else
2828 goto chs_fail;
2829 } else if (*p != '\0') {
2830 chs_fail:
2831 fprintf(stderr, "qemu: invalid physical CHS format\n");
2832 exit(1);
2833 }
2834 if (hda_opts != NULL) {
2835 char num[16];
2836 snprintf(num, sizeof(num), "%d", cyls);
2837 qemu_opt_set(hda_opts, "cyls", num);
2838 snprintf(num, sizeof(num), "%d", heads);
2839 qemu_opt_set(hda_opts, "heads", num);
2840 snprintf(num, sizeof(num), "%d", secs);
2841 qemu_opt_set(hda_opts, "secs", num);
2842 if (translation == BIOS_ATA_TRANSLATION_LBA)
2843 qemu_opt_set(hda_opts, "trans", "lba");
2844 if (translation == BIOS_ATA_TRANSLATION_NONE)
2845 qemu_opt_set(hda_opts, "trans", "none");
2846 }
2847 }
2848 break;
2849 case QEMU_OPTION_numa:
2850 if (nb_numa_nodes >= MAX_NODES) {
2851 fprintf(stderr, "qemu: too many NUMA nodes\n");
2852 exit(1);
2853 }
2854 numa_add(optarg);
2855 break;
2856 case QEMU_OPTION_nographic:
2857 display_type = DT_NOGRAPHIC;
2858 break;
2859 #ifdef CONFIG_CURSES
2860 case QEMU_OPTION_curses:
2861 display_type = DT_CURSES;
2862 break;
2863 #endif
2864 case QEMU_OPTION_portrait:
2865 graphic_rotate = 1;
2866 break;
2867 case QEMU_OPTION_kernel:
2868 kernel_filename = optarg;
2869 break;
2870 case QEMU_OPTION_append:
2871 kernel_cmdline = optarg;
2872 break;
2873 case QEMU_OPTION_cdrom:
2874 drive_add(optarg, CDROM_ALIAS);
2875 break;
2876 case QEMU_OPTION_boot:
2877 {
2878 static const char * const params[] = {
2879 "order", "once", "menu", NULL
2880 };
2881 char buf[sizeof(boot_devices)];
2882 char *standard_boot_devices;
2883 int legacy = 0;
2884
2885 if (!strchr(optarg, '=')) {
2886 legacy = 1;
2887 pstrcpy(buf, sizeof(buf), optarg);
2888 } else if (check_params(buf, sizeof(buf), params, optarg) < 0) {
2889 fprintf(stderr,
2890 "qemu: unknown boot parameter '%s' in '%s'\n",
2891 buf, optarg);
2892 exit(1);
2893 }
2894
2895 if (legacy ||
2896 get_param_value(buf, sizeof(buf), "order", optarg)) {
2897 validate_bootdevices(buf);
2898 pstrcpy(boot_devices, sizeof(boot_devices), buf);
2899 }
2900 if (!legacy) {
2901 if (get_param_value(buf, sizeof(buf),
2902 "once", optarg)) {
2903 validate_bootdevices(buf);
2904 standard_boot_devices = qemu_strdup(boot_devices);
2905 pstrcpy(boot_devices, sizeof(boot_devices), buf);
2906 qemu_register_reset(restore_boot_devices,
2907 standard_boot_devices);
2908 }
2909 if (get_param_value(buf, sizeof(buf),
2910 "menu", optarg)) {
2911 if (!strcmp(buf, "on")) {
2912 boot_menu = 1;
2913 } else if (!strcmp(buf, "off")) {
2914 boot_menu = 0;
2915 } else {
2916 fprintf(stderr,
2917 "qemu: invalid option value '%s'\n",
2918 buf);
2919 exit(1);
2920 }
2921 }
2922 }
2923 }
2924 break;
2925 case QEMU_OPTION_fda:
2926 case QEMU_OPTION_fdb:
2927 drive_add(optarg, FD_ALIAS, popt->index - QEMU_OPTION_fda);
2928 break;
2929 case QEMU_OPTION_no_fd_bootchk:
2930 fd_bootchk = 0;
2931 break;
2932 case QEMU_OPTION_netdev:
2933 if (net_client_parse(&qemu_netdev_opts, optarg) == -1) {
2934 exit(1);
2935 }
2936 break;
2937 case QEMU_OPTION_net:
2938 if (net_client_parse(&qemu_net_opts, optarg) == -1) {
2939 exit(1);
2940 }
2941 break;
2942 #ifdef CONFIG_SLIRP
2943 case QEMU_OPTION_tftp:
2944 legacy_tftp_prefix = optarg;
2945 break;
2946 case QEMU_OPTION_bootp:
2947 legacy_bootp_filename = optarg;
2948 break;
2949 #ifndef _WIN32
2950 case QEMU_OPTION_smb:
2951 if (net_slirp_smb(optarg) < 0)
2952 exit(1);
2953 break;
2954 #endif
2955 case QEMU_OPTION_redir:
2956 if (net_slirp_redir(optarg) < 0)
2957 exit(1);
2958 break;
2959 #endif
2960 case QEMU_OPTION_bt:
2961 add_device_config(DEV_BT, optarg);
2962 break;
2963 case QEMU_OPTION_audio_help:
2964 if (!(audio_available())) {
2965 printf("Option %s not supported for this target\n", popt->name);
2966 exit(1);
2967 }
2968 AUD_help ();
2969 exit (0);
2970 break;
2971 case QEMU_OPTION_soundhw:
2972 if (!(audio_available())) {
2973 printf("Option %s not supported for this target\n", popt->name);
2974 exit(1);
2975 }
2976 select_soundhw (optarg);
2977 break;
2978 case QEMU_OPTION_h:
2979 help(0);
2980 break;
2981 case QEMU_OPTION_version:
2982 version();
2983 exit(0);
2984 break;
2985 case QEMU_OPTION_m: {
2986 uint64_t value;
2987 char *ptr;
2988
2989 value = strtoul(optarg, &ptr, 10);
2990 switch (*ptr) {
2991 case 0: case 'M': case 'm':
2992 value <<= 20;
2993 break;
2994 case 'G': case 'g':
2995 value <<= 30;
2996 break;
2997 default:
2998 fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
2999 exit(1);
3000 }
3001
3002 /* On 32-bit hosts, QEMU is limited by virtual address space */
3003 if (value > (2047 << 20) && HOST_LONG_BITS == 32) {
3004 fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
3005 exit(1);
3006 }
3007 if (value != (uint64_t)(ram_addr_t)value) {
3008 fprintf(stderr, "qemu: ram size too large\n");
3009 exit(1);
3010 }
3011 ram_size = value;
3012 break;
3013 }
3014 case QEMU_OPTION_mempath:
3015 mem_path = optarg;
3016 break;
3017 #ifdef MAP_POPULATE
3018 case QEMU_OPTION_mem_prealloc:
3019 mem_prealloc = 1;
3020 break;
3021 #endif
3022 case QEMU_OPTION_d:
3023 set_cpu_log(optarg);
3024 break;
3025 case QEMU_OPTION_s:
3026 gdbstub_dev = "tcp::" DEFAULT_GDBSTUB_PORT;
3027 break;
3028 case QEMU_OPTION_gdb:
3029 gdbstub_dev = optarg;
3030 break;
3031 case QEMU_OPTION_L:
3032 data_dir = optarg;
3033 break;
3034 case QEMU_OPTION_bios:
3035 bios_name = optarg;
3036 break;
3037 case QEMU_OPTION_singlestep:
3038 singlestep = 1;
3039 break;
3040 case QEMU_OPTION_S:
3041 autostart = 0;
3042 break;
3043 case QEMU_OPTION_k:
3044 keyboard_layout = optarg;
3045 break;
3046 case QEMU_OPTION_localtime:
3047 rtc_utc = 0;
3048 break;
3049 case QEMU_OPTION_vga:
3050 select_vgahw (optarg);
3051 break;
3052 case QEMU_OPTION_g:
3053 {
3054 const char *p;
3055 int w, h, depth;
3056 p = optarg;
3057 w = strtol(p, (char **)&p, 10);
3058 if (w <= 0) {
3059 graphic_error:
3060 fprintf(stderr, "qemu: invalid resolution or depth\n");
3061 exit(1);
3062 }
3063 if (*p != 'x')
3064 goto graphic_error;
3065 p++;
3066 h = strtol(p, (char **)&p, 10);
3067 if (h <= 0)
3068 goto graphic_error;
3069 if (*p == 'x') {
3070 p++;
3071 depth = strtol(p, (char **)&p, 10);
3072 if (depth != 8 && depth != 15 && depth != 16 &&
3073 depth != 24 && depth != 32)
3074 goto graphic_error;
3075 } else if (*p == '\0') {
3076 depth = graphic_depth;
3077 } else {
3078 goto graphic_error;
3079 }
3080
3081 graphic_width = w;
3082 graphic_height = h;
3083 graphic_depth = depth;
3084 }
3085 break;
3086 case QEMU_OPTION_echr:
3087 {
3088 char *r;
3089 term_escape_char = strtol(optarg, &r, 0);
3090 if (r == optarg)
3091 printf("Bad argument to echr\n");
3092 break;
3093 }
3094 case QEMU_OPTION_monitor:
3095 monitor_parse(optarg, "readline");
3096 default_monitor = 0;
3097 break;
3098 case QEMU_OPTION_qmp:
3099 monitor_parse(optarg, "control");
3100 default_monitor = 0;
3101 break;
3102 case QEMU_OPTION_mon:
3103 opts = qemu_opts_parse(&qemu_mon_opts, optarg, 1);
3104 if (!opts) {
3105 exit(1);
3106 }
3107 default_monitor = 0;
3108 break;
3109 case QEMU_OPTION_chardev:
3110 opts = qemu_opts_parse(&qemu_chardev_opts, optarg, 1);
3111 if (!opts) {
3112 exit(1);
3113 }
3114 break;
3115 #ifdef CONFIG_LINUX
3116 case QEMU_OPTION_fsdev:
3117 opts = qemu_opts_parse(&qemu_fsdev_opts, optarg, 1);
3118 if (!opts) {
3119 fprintf(stderr, "parse error: %s\n", optarg);
3120 exit(1);
3121 }
3122 break;
3123 case QEMU_OPTION_virtfs: {
3124 char *arg_fsdev = NULL;
3125 char *arg_9p = NULL;
3126 int len = 0;
3127
3128 opts = qemu_opts_parse(&qemu_virtfs_opts, optarg, 1);
3129 if (!opts) {
3130 fprintf(stderr, "parse error: %s\n", optarg);
3131 exit(1);
3132 }
3133
3134 len = strlen(",id=,path=");
3135 len += strlen(qemu_opt_get(opts, "fstype"));
3136 len += strlen(qemu_opt_get(opts, "mount_tag"));
3137 len += strlen(qemu_opt_get(opts, "path"));
3138 arg_fsdev = qemu_malloc((len + 1) * sizeof(*arg_fsdev));
3139
3140 if (!arg_fsdev) {
3141 fprintf(stderr, "No memory to parse -fsdev for %s\n",
3142 optarg);
3143 exit(1);
3144 }
3145
3146 sprintf(arg_fsdev, "%s,id=%s,path=%s",
3147 qemu_opt_get(opts, "fstype"),
3148 qemu_opt_get(opts, "mount_tag"),
3149 qemu_opt_get(opts, "path"));
3150
3151 len = strlen("virtio-9p-pci,fsdev=,mount_tag=");
3152 len += 2*strlen(qemu_opt_get(opts, "mount_tag"));
3153 arg_9p = qemu_malloc((len + 1) * sizeof(*arg_9p));
3154
3155 if (!arg_9p) {
3156 fprintf(stderr, "No memory to parse -device for %s\n",
3157 optarg);
3158 exit(1);
3159 }
3160
3161 sprintf(arg_9p, "virtio-9p-pci,fsdev=%s,mount_tag=%s",
3162 qemu_opt_get(opts, "mount_tag"),
3163 qemu_opt_get(opts, "mount_tag"));
3164
3165 if (!qemu_opts_parse(&qemu_fsdev_opts, arg_fsdev, 1)) {
3166 fprintf(stderr, "parse error [fsdev]: %s\n", optarg);
3167 exit(1);
3168 }
3169
3170 if (!qemu_opts_parse(&qemu_device_opts, arg_9p, 1)) {
3171 fprintf(stderr, "parse error [device]: %s\n", optarg);
3172 exit(1);
3173 }
3174
3175 qemu_free(arg_fsdev);
3176 qemu_free(arg_9p);
3177 break;
3178 }
3179 #endif
3180 case QEMU_OPTION_serial:
3181 add_device_config(DEV_SERIAL, optarg);
3182 default_serial = 0;
3183 if (strncmp(optarg, "mon:", 4) == 0) {
3184 default_monitor = 0;
3185 }
3186 break;
3187 case QEMU_OPTION_watchdog:
3188 if (watchdog) {
3189 fprintf(stderr,
3190 "qemu: only one watchdog option may be given\n");
3191 return 1;
3192 }
3193 watchdog = optarg;
3194 break;
3195 case QEMU_OPTION_watchdog_action:
3196 if (select_watchdog_action(optarg) == -1) {
3197 fprintf(stderr, "Unknown -watchdog-action parameter\n");
3198 exit(1);
3199 }
3200 break;
3201 case QEMU_OPTION_virtiocon:
3202 add_device_config(DEV_VIRTCON, optarg);
3203 default_virtcon = 0;
3204 if (strncmp(optarg, "mon:", 4) == 0) {
3205 default_monitor = 0;
3206 }
3207 break;
3208 case QEMU_OPTION_parallel:
3209 add_device_config(DEV_PARALLEL, optarg);
3210 default_parallel = 0;
3211 if (strncmp(optarg, "mon:", 4) == 0) {
3212 default_monitor = 0;
3213 }
3214 break;
3215 case QEMU_OPTION_debugcon:
3216 add_device_config(DEV_DEBUGCON, optarg);
3217 break;
3218 case QEMU_OPTION_loadvm:
3219 loadvm = optarg;
3220 break;
3221 case QEMU_OPTION_full_screen:
3222 full_screen = 1;
3223 break;
3224 #ifdef CONFIG_SDL
3225 case QEMU_OPTION_no_frame:
3226 no_frame = 1;
3227 break;
3228 case QEMU_OPTION_alt_grab:
3229 alt_grab = 1;
3230 break;
3231 case QEMU_OPTION_ctrl_grab:
3232 ctrl_grab = 1;
3233 break;
3234 case QEMU_OPTION_no_quit:
3235 no_quit = 1;
3236 break;
3237 case QEMU_OPTION_sdl:
3238 display_type = DT_SDL;
3239 break;
3240 #endif
3241 case QEMU_OPTION_pidfile:
3242 pid_file = optarg;
3243 break;
3244 case QEMU_OPTION_win2k_hack:
3245 win2k_install_hack = 1;
3246 break;
3247 case QEMU_OPTION_rtc_td_hack:
3248 rtc_td_hack = 1;
3249 break;
3250 case QEMU_OPTION_acpitable:
3251 do_acpitable_option(optarg);
3252 break;
3253 case QEMU_OPTION_smbios:
3254 do_smbios_option(optarg);
3255 break;
3256 #ifdef KVM_UPSTREAM
3257 case QEMU_OPTION_enable_kvm:
3258 kvm_allowed = 1;
3259 #endif
3260 break;
3261 case QEMU_OPTION_no_kvm:
3262 kvm_allowed = 0;
3263 break;
3264 case QEMU_OPTION_no_kvm_irqchip: {
3265 kvm_irqchip = 0;
3266 kvm_pit = 0;
3267 break;
3268 }
3269 case QEMU_OPTION_no_kvm_pit: {
3270 kvm_pit = 0;
3271 break;
3272 }
3273 case QEMU_OPTION_no_kvm_pit_reinjection: {
3274 kvm_pit_reinject = 0;
3275 break;
3276 }
3277 case QEMU_OPTION_enable_nesting: {
3278 kvm_nested = 1;
3279 break;
3280 }
3281 #if defined(TARGET_I386) || defined(TARGET_X86_64) || defined(TARGET_IA64) || defined(__linux__)
3282 case QEMU_OPTION_pcidevice:
3283 if (assigned_devices_index >= MAX_DEV_ASSIGN_CMDLINE) {
3284 fprintf(stderr, "Too many assigned devices\n");
3285 exit(1);
3286 }
3287 assigned_devices[assigned_devices_index] = optarg;
3288 assigned_devices_index++;
3289 break;
3290 #endif
3291 case QEMU_OPTION_usb:
3292 usb_enabled = 1;
3293 break;
3294 case QEMU_OPTION_usbdevice:
3295 usb_enabled = 1;
3296 add_device_config(DEV_USB, optarg);
3297 break;
3298 case QEMU_OPTION_device:
3299 if (!qemu_opts_parse(&qemu_device_opts, optarg, 1)) {
3300 exit(1);
3301 }
3302 break;
3303 case QEMU_OPTION_smp:
3304 smp_parse(optarg);
3305 if (smp_cpus < 1) {
3306 fprintf(stderr, "Invalid number of CPUs\n");
3307 exit(1);
3308 }
3309 if (max_cpus < smp_cpus) {
3310 fprintf(stderr, "maxcpus must be equal to or greater than "
3311 "smp\n");
3312 exit(1);
3313 }
3314 if (max_cpus > 255) {
3315 fprintf(stderr, "Unsupported number of maxcpus\n");
3316 exit(1);
3317 }
3318 break;
3319 case QEMU_OPTION_vnc:
3320 display_type = DT_VNC;
3321 vnc_display = optarg;
3322 break;
3323 case QEMU_OPTION_no_acpi:
3324 acpi_enabled = 0;
3325 break;
3326 case QEMU_OPTION_no_hpet:
3327 no_hpet = 1;
3328 break;
3329 case QEMU_OPTION_balloon:
3330 if (balloon_parse(optarg) < 0) {
3331 fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
3332 exit(1);
3333 }
3334 break;
3335 case QEMU_OPTION_no_reboot:
3336 no_reboot = 1;
3337 break;
3338 case QEMU_OPTION_no_shutdown:
3339 no_shutdown = 1;
3340 break;
3341 case QEMU_OPTION_show_cursor:
3342 cursor_hide = 0;
3343 break;
3344 case QEMU_OPTION_uuid:
3345 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
3346 fprintf(stderr, "Fail to parse UUID string."
3347 " Wrong format.\n");
3348 exit(1);
3349 }
3350 break;
3351 #ifndef _WIN32
3352 case QEMU_OPTION_daemonize:
3353 daemonize = 1;
3354 break;
3355 #endif
3356 case QEMU_OPTION_option_rom:
3357 if (nb_option_roms >= MAX_OPTION_ROMS) {
3358 fprintf(stderr, "Too many option ROMs\n");
3359 exit(1);
3360 }
3361 option_rom[nb_option_roms] = optarg;
3362 nb_option_roms++;
3363 break;
3364 case QEMU_OPTION_semihosting:
3365 semihosting_enabled = 1;
3366 break;
3367 case QEMU_OPTION_tdf:
3368 time_drift_fix = 1;
3369 break;
3370 case QEMU_OPTION_kvm_shadow_memory:
3371 kvm_shadow_memory = (int64_t)atoi(optarg) * 1024 * 1024 / 4096;
3372 break;
3373 case QEMU_OPTION_name:
3374 qemu_name = qemu_strdup(optarg);
3375 {
3376 char *p = strchr(qemu_name, ',');
3377 if (p != NULL) {
3378 *p++ = 0;
3379 if (strncmp(p, "process=", 8)) {
3380 fprintf(stderr, "Unknown subargument %s to -name", p);
3381 exit(1);
3382 }
3383 p += 8;
3384 set_proc_name(p);
3385 }
3386 }
3387 break;
3388 case QEMU_OPTION_prom_env:
3389 if (nb_prom_envs >= MAX_PROM_ENVS) {
3390 fprintf(stderr, "Too many prom variables\n");
3391 exit(1);
3392 }
3393 prom_envs[nb_prom_envs] = optarg;
3394 nb_prom_envs++;
3395 break;
3396 case QEMU_OPTION_old_param:
3397 old_param = 1;
3398 break;
3399 case QEMU_OPTION_clock:
3400 configure_alarms(optarg);
3401 break;
3402 case QEMU_OPTION_startdate:
3403 configure_rtc_date_offset(optarg, 1);
3404 break;
3405 case QEMU_OPTION_rtc:
3406 opts = qemu_opts_parse(&qemu_rtc_opts, optarg, 0);
3407 if (!opts) {
3408 exit(1);
3409 }
3410 configure_rtc(opts);
3411 break;
3412 case QEMU_OPTION_tb_size:
3413 tb_size = strtol(optarg, NULL, 0);
3414 if (tb_size < 0)
3415 tb_size = 0;
3416 break;
3417 case QEMU_OPTION_icount:
3418 icount_option = optarg;
3419 break;
3420 case QEMU_OPTION_incoming:
3421 incoming = optarg;
3422 break;
3423 case QEMU_OPTION_nodefaults:
3424 default_serial = 0;
3425 default_parallel = 0;
3426 default_virtcon = 0;
3427 default_monitor = 0;
3428 default_vga = 0;
3429 default_net = 0;
3430 default_floppy = 0;
3431 default_cdrom = 0;
3432 default_sdcard = 0;
3433 break;
3434 #ifndef _WIN32
3435 case QEMU_OPTION_chroot:
3436 chroot_dir = optarg;
3437 break;
3438 case QEMU_OPTION_runas:
3439 run_as = optarg;
3440 break;
3441 case QEMU_OPTION_nvram:
3442 nvram = optarg;
3443 break;
3444 #endif
3445 case QEMU_OPTION_xen_domid:
3446 if (!(xen_available())) {
3447 printf("Option %s not supported for this target\n", popt->name);
3448 exit(1);
3449 }
3450 xen_domid = atoi(optarg);
3451 break;
3452 case QEMU_OPTION_xen_create:
3453 if (!(xen_available())) {
3454 printf("Option %s not supported for this target\n", popt->name);
3455 exit(1);
3456 }
3457 xen_mode = XEN_CREATE;
3458 break;
3459 case QEMU_OPTION_xen_attach:
3460 if (!(xen_available())) {
3461 printf("Option %s not supported for this target\n", popt->name);
3462 exit(1);
3463 }
3464 xen_mode = XEN_ATTACH;
3465 break;
3466 case QEMU_OPTION_readconfig:
3467 {
3468 int ret = qemu_read_config_file(optarg);
3469 if (ret < 0) {
3470 fprintf(stderr, "read config %s: %s\n", optarg,
3471 strerror(-ret));
3472 exit(1);
3473 }
3474 break;
3475 }
3476 case QEMU_OPTION_writeconfig:
3477 {
3478 FILE *fp;
3479 if (strcmp(optarg, "-") == 0) {
3480 fp = stdout;
3481 } else {
3482 fp = fopen(optarg, "w");
3483 if (fp == NULL) {
3484 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
3485 exit(1);
3486 }
3487 }
3488 qemu_config_write(fp);
3489 fclose(fp);
3490 break;
3491 }
3492 }
3493 }
3494 }
3495 loc_set_none();
3496
3497 /* If no data_dir is specified then try to find it relative to the
3498 executable path. */
3499 if (!data_dir) {
3500 data_dir = find_datadir(argv[0]);
3501 }
3502 /* If all else fails use the install patch specified when building. */
3503 if (!data_dir) {
3504 data_dir = CONFIG_QEMU_SHAREDIR;
3505 }
3506
3507 /*
3508 * Default to max_cpus = smp_cpus, in case the user doesn't
3509 * specify a max_cpus value.
3510 */
3511 if (!max_cpus)
3512 max_cpus = smp_cpus;
3513
3514 machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
3515 if (smp_cpus > machine->max_cpus) {
3516 fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
3517 "supported by machine `%s' (%d)\n", smp_cpus, machine->name,
3518 machine->max_cpus);
3519 exit(1);
3520 }
3521
3522 qemu_opts_foreach(&qemu_device_opts, default_driver_check, NULL, 0);
3523 qemu_opts_foreach(&qemu_global_opts, default_driver_check, NULL, 0);
3524
3525 if (machine->no_serial) {
3526 default_serial = 0;
3527 }
3528 if (machine->no_parallel) {
3529 default_parallel = 0;
3530 }
3531 if (!machine->use_virtcon) {
3532 default_virtcon = 0;
3533 }
3534 if (machine->no_vga) {
3535 default_vga = 0;
3536 }
3537 if (machine->no_floppy) {
3538 default_floppy = 0;
3539 }
3540 if (machine->no_cdrom) {
3541 default_cdrom = 0;
3542 }
3543 if (machine->no_sdcard) {
3544 default_sdcard = 0;
3545 }
3546
3547 if (display_type == DT_NOGRAPHIC) {
3548 if (default_parallel)
3549 add_device_config(DEV_PARALLEL, "null");
3550 if (default_serial && default_monitor) {
3551 add_device_config(DEV_SERIAL, "mon:stdio");
3552 } else if (default_virtcon && default_monitor) {
3553 add_device_config(DEV_VIRTCON, "mon:stdio");
3554 } else {
3555 if (default_serial)
3556 add_device_config(DEV_SERIAL, "stdio");
3557 if (default_virtcon)
3558 add_device_config(DEV_VIRTCON, "stdio");
3559 if (default_monitor)
3560 monitor_parse("stdio", "readline");
3561 }
3562 } else {
3563 if (default_serial)
3564 add_device_config(DEV_SERIAL, "vc:80Cx24C");
3565 if (default_parallel)
3566 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
3567 if (default_monitor)
3568 monitor_parse("vc:80Cx24C", "readline");
3569 if (default_virtcon)
3570 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
3571 }
3572 if (default_vga)
3573 vga_interface_type = VGA_CIRRUS;
3574
3575 socket_init();
3576
3577 if (qemu_opts_foreach(&qemu_chardev_opts, chardev_init_func, NULL, 1) != 0)
3578 exit(1);
3579 #ifdef CONFIG_LINUX
3580 if (qemu_opts_foreach(&qemu_fsdev_opts, fsdev_init_func, NULL, 1) != 0) {
3581 exit(1);
3582 }
3583 #endif
3584
3585 #ifndef _WIN32
3586 if (daemonize) {
3587 pid_t pid;
3588
3589 if (pipe(fds) == -1)
3590 exit(1);
3591
3592 pid = fork();
3593 if (pid > 0) {
3594 uint8_t status;
3595 ssize_t len;
3596
3597 close(fds[1]);
3598
3599 again:
3600 len = read(fds[0], &status, 1);
3601 if (len == -1 && (errno == EINTR))
3602 goto again;
3603
3604 if (len != 1)
3605 exit(1);
3606 else if (status == 1) {
3607 fprintf(stderr, "Could not acquire pidfile: %s\n", strerror(errno));
3608 exit(1);
3609 } else
3610 exit(0);
3611 } else if (pid < 0)
3612 exit(1);
3613
3614 close(fds[0]);
3615 qemu_set_cloexec(fds[1]);
3616
3617 setsid();
3618
3619 pid = fork();
3620 if (pid > 0)
3621 exit(0);
3622 else if (pid < 0)
3623 exit(1);
3624
3625 umask(027);
3626
3627 signal(SIGTSTP, SIG_IGN);
3628 signal(SIGTTOU, SIG_IGN);
3629 signal(SIGTTIN, SIG_IGN);
3630 }
3631 #endif
3632
3633 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
3634 #ifndef _WIN32
3635 if (daemonize) {
3636 uint8_t status = 1;
3637 if (write(fds[1], &status, 1) != 1) {
3638 perror("daemonize. Writing to pipe\n");
3639 }
3640 } else
3641 #endif
3642 fprintf(stderr, "Could not acquire pid file: %s\n", strerror(errno));
3643 exit(1);
3644 }
3645
3646 if (kvm_allowed) {
3647 int ret = kvm_init(smp_cpus);
3648 if (ret < 0) {
3649 #if defined(KVM_UPSTREAM) || defined(CONFIG_NO_CPU_EMULATION)
3650 if (!kvm_available()) {
3651 printf("KVM not supported for this target\n");
3652 } else {
3653 fprintf(stderr, "failed to initialize KVM: %s\n", strerror(-ret));
3654 }
3655 exit(1);
3656 #endif
3657 #ifdef CONFIG_KVM
3658 fprintf(stderr, "Could not initialize KVM, will disable KVM support\n");
3659 kvm_allowed = 0;
3660 #endif
3661 }
3662 }
3663
3664 if (qemu_init_main_loop()) {
3665 fprintf(stderr, "qemu_init_main_loop failed\n");
3666 exit(1);
3667 }
3668 linux_boot = (kernel_filename != NULL);
3669
3670 if (!linux_boot && *kernel_cmdline != '\0') {
3671 fprintf(stderr, "-append only allowed with -kernel option\n");
3672 exit(1);
3673 }
3674
3675 if (!linux_boot && initrd_filename != NULL) {
3676 fprintf(stderr, "-initrd only allowed with -kernel option\n");
3677 exit(1);
3678 }
3679
3680 #ifndef _WIN32
3681 /* Win32 doesn't support line-buffering and requires size >= 2 */
3682 setvbuf(stdout, NULL, _IOLBF, 0);
3683 #endif
3684
3685 if (init_timer_alarm() < 0) {
3686 fprintf(stderr, "could not initialize alarm timer\n");
3687 exit(1);
3688 }
3689 configure_icount(icount_option);
3690
3691 if (net_init_clients() < 0) {
3692 exit(1);
3693 }
3694
3695 /* init the bluetooth world */
3696 if (foreach_device_config(DEV_BT, bt_parse))
3697 exit(1);
3698
3699 /* init the memory */
3700 if (ram_size == 0)
3701 ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
3702
3703 /* init the dynamic translator */
3704 cpu_exec_init_all(tb_size * 1024 * 1024);
3705
3706 bdrv_init_with_whitelist();
3707
3708 blk_mig_init();
3709
3710 if (default_cdrom) {
3711 /* we always create the cdrom drive, even if no disk is there */
3712 drive_add(NULL, CDROM_ALIAS);
3713 }
3714
3715 if (default_floppy) {
3716 /* we always create at least one floppy */
3717 drive_add(NULL, FD_ALIAS, 0);
3718 }
3719
3720 if (default_sdcard) {
3721 /* we always create one sd slot, even if no card is in it */
3722 drive_add(NULL, SD_ALIAS);
3723 }
3724
3725 /* open the virtual block devices */
3726 if (snapshot)
3727 qemu_opts_foreach(&qemu_drive_opts, drive_enable_snapshot, NULL, 0);
3728 if (qemu_opts_foreach(&qemu_drive_opts, drive_init_func, machine, 1) != 0)
3729 exit(1);
3730
3731 register_savevm_live("ram", 0, 3, NULL, ram_save_live, NULL,
3732 ram_load, NULL);
3733
3734 if (nb_numa_nodes > 0) {
3735 int i;
3736
3737 if (nb_numa_nodes > smp_cpus) {
3738 nb_numa_nodes = smp_cpus;
3739 }
3740
3741 /* If no memory size if given for any node, assume the default case
3742 * and distribute the available memory equally across all nodes
3743 */
3744 for (i = 0; i < nb_numa_nodes; i++) {
3745 if (node_mem[i] != 0)
3746 break;
3747 }
3748 if (i == nb_numa_nodes) {
3749 uint64_t usedmem = 0;
3750
3751 /* On Linux, the each node's border has to be 8MB aligned,
3752 * the final node gets the rest.
3753 */
3754 for (i = 0; i < nb_numa_nodes - 1; i++) {
3755 node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1);
3756 usedmem += node_mem[i];
3757 }
3758 node_mem[i] = ram_size - usedmem;
3759 }
3760
3761 for (i = 0; i < nb_numa_nodes; i++) {
3762 if (node_cpumask[i] != 0)
3763 break;
3764 }
3765 /* assigning the VCPUs round-robin is easier to implement, guest OSes
3766 * must cope with this anyway, because there are BIOSes out there in
3767 * real machines which also use this scheme.
3768 */
3769 if (i == nb_numa_nodes) {
3770 for (i = 0; i < smp_cpus; i++) {
3771 node_cpumask[i % nb_numa_nodes] |= 1 << i;
3772 }
3773 }
3774 }
3775
3776 if (qemu_opts_foreach(&qemu_mon_opts, mon_init_func, NULL, 1) != 0) {
3777 exit(1);
3778 }
3779
3780 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
3781 exit(1);
3782 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
3783 exit(1);
3784 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
3785 exit(1);
3786 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
3787 exit(1);
3788
3789 module_call_init(MODULE_INIT_DEVICE);
3790
3791 if (qemu_opts_foreach(&qemu_device_opts, device_help_func, NULL, 0) != 0)
3792 exit(0);
3793
3794 if (watchdog) {
3795 i = select_watchdog(watchdog);
3796 if (i > 0)
3797 exit (i == 1 ? 1 : 0);
3798 }
3799
3800 if (machine->compat_props) {
3801 qdev_prop_register_global_list(machine->compat_props);
3802 }
3803 qemu_add_globals();
3804
3805 machine->init(ram_size, boot_devices,
3806 kernel_filename, kernel_cmdline, initrd_filename, cpu_model);
3807
3808 cpu_synchronize_all_post_init();
3809
3810 #ifndef _WIN32
3811 /* must be after terminal init, SDL library changes signal handlers */
3812 sighandler_setup();
3813 #endif
3814
3815 set_numa_modes();
3816
3817 current_machine = machine;
3818
3819 /* init USB devices */
3820 if (usb_enabled) {
3821 if (foreach_device_config(DEV_USB, usb_parse) < 0)
3822 exit(1);
3823 }
3824
3825 /* init generic devices */
3826 if (qemu_opts_foreach(&qemu_device_opts, device_init_func, NULL, 1) != 0)
3827 exit(1);
3828
3829 net_check_clients();
3830
3831 /* just use the first displaystate for the moment */
3832 ds = get_displaystate();
3833
3834 if (display_type == DT_DEFAULT) {
3835 #if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
3836 display_type = DT_SDL;
3837 #else
3838 display_type = DT_VNC;
3839 vnc_display = "localhost:0,to=99";
3840 show_vnc_port = 1;
3841 #endif
3842 }
3843
3844
3845 switch (display_type) {
3846 case DT_NOGRAPHIC:
3847 break;
3848 #if defined(CONFIG_CURSES)
3849 case DT_CURSES:
3850 curses_display_init(ds, full_screen);
3851 break;
3852 #endif
3853 #if defined(CONFIG_SDL)
3854 case DT_SDL:
3855 sdl_display_init(ds, full_screen, no_frame);
3856 break;
3857 #elif defined(CONFIG_COCOA)
3858 case DT_SDL:
3859 cocoa_display_init(ds, full_screen);
3860 break;
3861 #endif
3862 case DT_VNC:
3863 vnc_display_init(ds);
3864 if (vnc_display_open(ds, vnc_display) < 0)
3865 exit(1);
3866
3867 if (show_vnc_port) {
3868 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
3869 }
3870 break;
3871 default:
3872 break;
3873 }
3874 dpy_resize(ds);
3875
3876 dcl = ds->listeners;
3877 while (dcl != NULL) {
3878 if (dcl->dpy_refresh != NULL) {
3879 ds->gui_timer = qemu_new_timer(rt_clock, gui_update, ds);
3880 qemu_mod_timer(ds->gui_timer, qemu_get_clock(rt_clock));
3881 }
3882 dcl = dcl->next;
3883 }
3884
3885 if (display_type == DT_NOGRAPHIC || display_type == DT_VNC) {
3886 nographic_timer = qemu_new_timer(rt_clock, nographic_update, NULL);
3887 qemu_mod_timer(nographic_timer, qemu_get_clock(rt_clock));
3888 }
3889
3890 text_consoles_set_display(ds);
3891
3892 if (gdbstub_dev && gdbserver_start(gdbstub_dev) < 0) {
3893 fprintf(stderr, "qemu: could not open gdbserver on device '%s'\n",
3894 gdbstub_dev);
3895 exit(1);
3896 }
3897
3898 qdev_machine_creation_done();
3899
3900 if (rom_load_all() != 0) {
3901 fprintf(stderr, "rom loading failed\n");
3902 exit(1);
3903 }
3904
3905 qemu_system_reset();
3906 if (loadvm) {
3907 if (load_vmstate(loadvm) < 0) {
3908 autostart = 0;
3909 }
3910 }
3911
3912 if (incoming) {
3913 qemu_start_incoming_migration(incoming);
3914 } else if (autostart) {
3915 vm_start();
3916 }
3917
3918 #ifndef _WIN32
3919 if (daemonize) {
3920 uint8_t status = 0;
3921 ssize_t len;
3922
3923 again1:
3924 len = write(fds[1], &status, 1);
3925 if (len == -1 && (errno == EINTR))
3926 goto again1;
3927
3928 if (len != 1)
3929 exit(1);
3930
3931 if (chdir("/")) {
3932 perror("not able to chdir to /");
3933 exit(1);
3934 }
3935 TFR(fd = qemu_open("/dev/null", O_RDWR));
3936 if (fd == -1)
3937 exit(1);
3938 }
3939
3940 if (run_as) {
3941 pwd = getpwnam(run_as);
3942 if (!pwd) {
3943 fprintf(stderr, "User \"%s\" doesn't exist\n", run_as);
3944 exit(1);
3945 }
3946 }
3947
3948 if (chroot_dir) {
3949 if (chroot(chroot_dir) < 0) {
3950 fprintf(stderr, "chroot failed\n");
3951 exit(1);
3952 }
3953 if (chdir("/")) {
3954 perror("not able to chdir to /");
3955 exit(1);
3956 }
3957 }
3958
3959 if (run_as) {
3960 if (setgid(pwd->pw_gid) < 0) {
3961 fprintf(stderr, "Failed to setgid(%d)\n", pwd->pw_gid);
3962 exit(1);
3963 }
3964 if (setuid(pwd->pw_uid) < 0) {
3965 fprintf(stderr, "Failed to setuid(%d)\n", pwd->pw_uid);
3966 exit(1);
3967 }
3968 if (setuid(0) != -1) {
3969 fprintf(stderr, "Dropping privileges failed\n");
3970 exit(1);
3971 }
3972 }
3973
3974 if (daemonize) {
3975 dup2(fd, 0);
3976 dup2(fd, 1);
3977 dup2(fd, 2);
3978
3979 close(fd);
3980 }
3981 #endif
3982
3983 main_loop();
3984 quit_timers();
3985 net_cleanup();
3986
3987 return 0;
3988 }
Zhi Yong Wu's QEmu Source Tree - dev