4 * Copyright (c) 2003-2008 Fabrice Bellard
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:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
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
32 /* Needed early for CONFIG_BSD etc. */
33 #include "config-host.h"
38 #include <sys/times.h>
42 #include <sys/ioctl.h>
43 #include <sys/resource.h>
44 #include <sys/socket.h>
45 #include <netinet/in.h>
47 #include <arpa/inet.h>
50 #include <sys/select.h>
53 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
55 #include <sys/sysctl.h>
63 #include <sys/prctl.h>
65 #include <linux/ppdev.h>
66 #include <linux/parport.h>
70 #include <sys/ethernet.h>
71 #include <sys/sockio.h>
72 #include <netinet/arp.h>
73 #include <netinet/in_systm.h>
74 #include <netinet/ip.h>
75 #include <netinet/ip_icmp.h> // must come after ip.h
76 #include <netinet/udp.h>
77 #include <netinet/tcp.h>
81 /* See MySQL bug #7156 (http://bugs.mysql.com/bug.php?id=7156) for
82 discussion about Solaris header problems */
83 extern int madvise(caddr_t, size_t, int);
88 #if defined(__OpenBSD__)
92 #if defined(CONFIG_VDE)
93 #include <libvdeplug.h>
101 #if defined(__APPLE__) || defined(main)
103 int qemu_main(int argc, char **argv, char **envp);
104 int main(int argc, char **argv)
106 return qemu_main(argc, argv, NULL);
109 #define main qemu_main
111 #endif /* CONFIG_SDL */
115 #define main qemu_main
116 #endif /* CONFIG_COCOA */
119 #include "hw/boards.h"
121 #include "hw/pcmcia.h"
126 #include "hw/watchdog.h"
127 #include "hw/smbios.h"
130 #include "hw/loader.h"
133 #include "net/slirp.h"
138 #include "qemu-timer.h"
139 #include "qemu-char.h"
140 #include "cache-utils.h"
142 #include "block_int.h"
143 #include "block-migration.h"
145 #include "audio/audio.h"
146 #include "migration.h"
148 #include "qemu-option.h"
149 #include "qemu-config.h"
150 #include "qemu-objects.h"
152 #include "fsdev/qemu-fsdev.h"
157 #include "qemu_socket.h"
159 #include "slirp/libslirp.h"
161 #include "qemu-queue.h"
163 #include "arch_init.h"
166 //#define DEBUG_SLIRP
168 #define DEFAULT_RAM_SIZE 128
170 #define MAX_VIRTIO_CONSOLES 1
172 static const char *data_dir;
173 const char *bios_name = NULL;
174 /* Note: drives_table[MAX_DRIVES] is a dummy block driver if none available
175 to store the VM snapshots */
176 struct drivelist drives = QTAILQ_HEAD_INITIALIZER(drives);
177 struct driveoptlist driveopts = QTAILQ_HEAD_INITIALIZER(driveopts);
178 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
179 DisplayType display_type = DT_DEFAULT;
180 const char* keyboard_layout = NULL;
182 const char *mem_path = NULL;
184 int mem_prealloc = 0; /* force preallocation of physical target memory */
187 NICInfo nd_table[MAX_NICS];
190 static int rtc_utc = 1;
191 static int rtc_date_offset = -1; /* -1 means no change */
192 QEMUClock *rtc_clock;
193 int vga_interface_type = VGA_NONE;
194 static int full_screen = 0;
196 static int no_frame = 0;
199 CharDriverState *serial_hds[MAX_SERIAL_PORTS];
200 CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
201 CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES];
202 int win2k_install_hack = 0;
210 const char *vnc_display;
211 int acpi_enabled = 1;
217 int graphic_rotate = 0;
218 uint8_t irq0override = 1;
222 const char *watchdog;
223 const char *option_rom[MAX_OPTION_ROMS];
225 int semihosting_enabled = 0;
227 const char *qemu_name;
230 unsigned int nb_prom_envs = 0;
231 const char *prom_envs[MAX_PROM_ENVS];
235 uint64_t node_mem[MAX_NODES];
236 uint64_t node_cpumask[MAX_NODES];
238 static QEMUTimer *nographic_timer;
240 uint8_t qemu_uuid[16];
242 static QEMUBootSetHandler *boot_set_handler;
243 static void *boot_set_opaque;
247 enum xen_mode xen_mode = XEN_EMULATE;
249 static int default_serial = 1;
250 static int default_parallel = 1;
251 static int default_virtcon = 1;
252 static int default_monitor = 1;
253 static int default_vga = 1;
254 static int default_floppy = 1;
255 static int default_cdrom = 1;
256 static int default_sdcard = 1;
262 { .driver = "isa-serial", .flag = &default_serial },
263 { .driver = "isa-parallel", .flag = &default_parallel },
264 { .driver = "isa-fdc", .flag = &default_floppy },
265 { .driver = "ide-drive", .flag = &default_cdrom },
266 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
267 { .driver = "virtio-serial-s390", .flag = &default_virtcon },
268 { .driver = "virtio-serial", .flag = &default_virtcon },
269 { .driver = "VGA", .flag = &default_vga },
270 { .driver = "cirrus-vga", .flag = &default_vga },
271 { .driver = "vmware-svga", .flag = &default_vga },
274 static int default_driver_check(QemuOpts *opts, void *opaque)
276 const char *driver = qemu_opt_get(opts, "driver");
281 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
282 if (strcmp(default_list[i].driver, driver) != 0)
284 *(default_list[i].flag) = 0;
289 /***********************************************************/
291 static void set_proc_name(const char *s)
293 #if defined(__linux__) && defined(PR_SET_NAME)
297 name[sizeof(name) - 1] = 0;
298 strncpy(name, s, sizeof(name));
299 /* Could rewrite argv[0] too, but that's a bit more complicated.
300 This simple way is enough for `top'. */
301 prctl(PR_SET_NAME, name);
305 /***********************************************************/
306 /* real time host monotonic timer */
308 /* compute with 96 bit intermediate result: (a*b)/c */
309 uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
314 #ifdef HOST_WORDS_BIGENDIAN
324 rl = (uint64_t)u.l.low * (uint64_t)b;
325 rh = (uint64_t)u.l.high * (uint64_t)b;
328 res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
332 /***********************************************************/
333 /* host time/date access */
334 void qemu_get_timedate(struct tm *tm, int offset)
341 if (rtc_date_offset == -1) {
345 ret = localtime(&ti);
347 ti -= rtc_date_offset;
351 memcpy(tm, ret, sizeof(struct tm));
354 int qemu_timedate_diff(struct tm *tm)
358 if (rtc_date_offset == -1)
360 seconds = mktimegm(tm);
362 seconds = mktime(tm);
364 seconds = mktimegm(tm) + rtc_date_offset;
366 return seconds - time(NULL);
369 void rtc_change_mon_event(struct tm *tm)
373 data = qobject_from_jsonf("{ 'offset': %d }", qemu_timedate_diff(tm));
374 monitor_protocol_event(QEVENT_RTC_CHANGE, data);
375 qobject_decref(data);
378 static void configure_rtc_date_offset(const char *startdate, int legacy)
380 time_t rtc_start_date;
383 if (!strcmp(startdate, "now") && legacy) {
384 rtc_date_offset = -1;
386 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
394 } else if (sscanf(startdate, "%d-%d-%d",
406 rtc_start_date = mktimegm(&tm);
407 if (rtc_start_date == -1) {
409 fprintf(stderr, "Invalid date format. Valid formats are:\n"
410 "'2006-06-17T16:01:21' or '2006-06-17'\n");
413 rtc_date_offset = time(NULL) - rtc_start_date;
417 static void configure_rtc(QemuOpts *opts)
421 value = qemu_opt_get(opts, "base");
423 if (!strcmp(value, "utc")) {
425 } else if (!strcmp(value, "localtime")) {
428 configure_rtc_date_offset(value, 0);
431 value = qemu_opt_get(opts, "clock");
433 if (!strcmp(value, "host")) {
434 rtc_clock = host_clock;
435 } else if (!strcmp(value, "vm")) {
436 rtc_clock = vm_clock;
438 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
442 value = qemu_opt_get(opts, "driftfix");
444 if (!strcmp(value, "slew")) {
446 } else if (!strcmp(value, "none")) {
449 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
455 /***********************************************************/
456 /* Bluetooth support */
459 static struct HCIInfo *hci_table[MAX_NICS];
461 static struct bt_vlan_s {
462 struct bt_scatternet_s net;
464 struct bt_vlan_s *next;
467 /* find or alloc a new bluetooth "VLAN" */
468 static struct bt_scatternet_s *qemu_find_bt_vlan(int id)
470 struct bt_vlan_s **pvlan, *vlan;
471 for (vlan = first_bt_vlan; vlan != NULL; vlan = vlan->next) {
475 vlan = qemu_mallocz(sizeof(struct bt_vlan_s));
477 pvlan = &first_bt_vlan;
478 while (*pvlan != NULL)
479 pvlan = &(*pvlan)->next;
484 static void null_hci_send(struct HCIInfo *hci, const uint8_t *data, int len)
488 static int null_hci_addr_set(struct HCIInfo *hci, const uint8_t *bd_addr)
493 static struct HCIInfo null_hci = {
494 .cmd_send = null_hci_send,
495 .sco_send = null_hci_send,
496 .acl_send = null_hci_send,
497 .bdaddr_set = null_hci_addr_set,
500 struct HCIInfo *qemu_next_hci(void)
502 if (cur_hci == nb_hcis)
505 return hci_table[cur_hci++];
508 static struct HCIInfo *hci_init(const char *str)
511 struct bt_scatternet_s *vlan = 0;
513 if (!strcmp(str, "null"))
516 else if (!strncmp(str, "host", 4) && (str[4] == '\0' || str[4] == ':'))
518 return bt_host_hci(str[4] ? str + 5 : "hci0");
519 else if (!strncmp(str, "hci", 3)) {
522 if (!strncmp(str + 3, ",vlan=", 6)) {
523 vlan = qemu_find_bt_vlan(strtol(str + 9, &endp, 0));
528 vlan = qemu_find_bt_vlan(0);
530 return bt_new_hci(vlan);
533 fprintf(stderr, "qemu: Unknown bluetooth HCI `%s'.\n", str);
538 static int bt_hci_parse(const char *str)
543 if (nb_hcis >= MAX_NICS) {
544 fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
557 bdaddr.b[5] = 0x56 + nb_hcis;
558 hci->bdaddr_set(hci, bdaddr.b);
560 hci_table[nb_hcis++] = hci;
565 static void bt_vhci_add(int vlan_id)
567 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
570 fprintf(stderr, "qemu: warning: adding a VHCI to "
571 "an empty scatternet %i\n", vlan_id);
573 bt_vhci_init(bt_new_hci(vlan));
576 static struct bt_device_s *bt_device_add(const char *opt)
578 struct bt_scatternet_s *vlan;
580 char *endp = strstr(opt, ",vlan=");
581 int len = (endp ? endp - opt : strlen(opt)) + 1;
584 pstrcpy(devname, MIN(sizeof(devname), len), opt);
587 vlan_id = strtol(endp + 6, &endp, 0);
589 fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
594 vlan = qemu_find_bt_vlan(vlan_id);
597 fprintf(stderr, "qemu: warning: adding a slave device to "
598 "an empty scatternet %i\n", vlan_id);
600 if (!strcmp(devname, "keyboard"))
601 return bt_keyboard_init(vlan);
603 fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
607 static int bt_parse(const char *opt)
609 const char *endp, *p;
612 if (strstart(opt, "hci", &endp)) {
613 if (!*endp || *endp == ',') {
615 if (!strstart(endp, ",vlan=", 0))
618 return bt_hci_parse(opt);
620 } else if (strstart(opt, "vhci", &endp)) {
621 if (!*endp || *endp == ',') {
623 if (strstart(endp, ",vlan=", &p)) {
624 vlan = strtol(p, (char **) &endp, 0);
626 fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
630 fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1);
639 } else if (strstart(opt, "device:", &endp))
640 return !bt_device_add(endp);
642 fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
646 /***********************************************************/
647 /* QEMU Block devices */
649 #define HD_ALIAS "index=%d,media=disk"
650 #define CDROM_ALIAS "index=2,media=cdrom"
651 #define FD_ALIAS "index=%d,if=floppy"
652 #define PFLASH_ALIAS "if=pflash"
653 #define MTD_ALIAS "if=mtd"
654 #define SD_ALIAS "index=0,if=sd"
656 QemuOpts *drive_add(const char *file, const char *fmt, ...)
663 vsnprintf(optstr, sizeof(optstr), fmt, ap);
666 opts = qemu_opts_parse(&qemu_drive_opts, optstr, 0);
671 qemu_opt_set(opts, "file", file);
675 DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit)
679 /* seek interface, bus and unit */
681 QTAILQ_FOREACH(dinfo, &drives, next) {
682 if (dinfo->type == type &&
691 DriveInfo *drive_get_by_id(const char *id)
695 QTAILQ_FOREACH(dinfo, &drives, next) {
696 if (strcmp(id, dinfo->id))
703 int drive_get_max_bus(BlockInterfaceType type)
709 QTAILQ_FOREACH(dinfo, &drives, next) {
710 if(dinfo->type == type &&
711 dinfo->bus > max_bus)
712 max_bus = dinfo->bus;
717 const char *drive_get_serial(BlockDriverState *bdrv)
721 QTAILQ_FOREACH(dinfo, &drives, next) {
722 if (dinfo->bdrv == bdrv)
723 return dinfo->serial;
729 BlockInterfaceErrorAction drive_get_on_error(
730 BlockDriverState *bdrv, int is_read)
734 QTAILQ_FOREACH(dinfo, &drives, next) {
735 if (dinfo->bdrv == bdrv)
736 return is_read ? dinfo->on_read_error : dinfo->on_write_error;
739 return is_read ? BLOCK_ERR_REPORT : BLOCK_ERR_STOP_ENOSPC;
742 static void bdrv_format_print(void *opaque, const char *name)
744 fprintf(stderr, " %s", name);
747 void drive_uninit(DriveInfo *dinfo)
749 qemu_opts_del(dinfo->opts);
750 bdrv_delete(dinfo->bdrv);
751 QTAILQ_REMOVE(&drives, dinfo, next);
755 static int parse_block_error_action(const char *buf, int is_read)
757 if (!strcmp(buf, "ignore")) {
758 return BLOCK_ERR_IGNORE;
759 } else if (!is_read && !strcmp(buf, "enospc")) {
760 return BLOCK_ERR_STOP_ENOSPC;
761 } else if (!strcmp(buf, "stop")) {
762 return BLOCK_ERR_STOP_ANY;
763 } else if (!strcmp(buf, "report")) {
764 return BLOCK_ERR_REPORT;
766 fprintf(stderr, "qemu: '%s' invalid %s error action\n",
767 buf, is_read ? "read" : "write");
772 DriveInfo *drive_init(QemuOpts *opts, void *opaque,
776 const char *file = NULL;
779 const char *mediastr = "";
780 BlockInterfaceType type;
781 enum { MEDIA_DISK, MEDIA_CDROM } media;
783 int cyls, heads, secs, translation;
784 BlockDriver *drv = NULL;
785 QEMUMachine *machine = opaque;
790 int on_read_error, on_write_error;
797 translation = BIOS_ATA_TRANSLATION_AUTO;
799 if (machine && machine->use_scsi) {
801 max_devs = MAX_SCSI_DEVS;
802 pstrcpy(devname, sizeof(devname), "scsi");
805 max_devs = MAX_IDE_DEVS;
806 pstrcpy(devname, sizeof(devname), "ide");
810 /* extract parameters */
811 bus_id = qemu_opt_get_number(opts, "bus", 0);
812 unit_id = qemu_opt_get_number(opts, "unit", -1);
813 index = qemu_opt_get_number(opts, "index", -1);
815 cyls = qemu_opt_get_number(opts, "cyls", 0);
816 heads = qemu_opt_get_number(opts, "heads", 0);
817 secs = qemu_opt_get_number(opts, "secs", 0);
819 snapshot = qemu_opt_get_bool(opts, "snapshot", 0);
820 ro = qemu_opt_get_bool(opts, "readonly", 0);
822 file = qemu_opt_get(opts, "file");
823 serial = qemu_opt_get(opts, "serial");
825 if ((buf = qemu_opt_get(opts, "if")) != NULL) {
826 pstrcpy(devname, sizeof(devname), buf);
827 if (!strcmp(buf, "ide")) {
829 max_devs = MAX_IDE_DEVS;
830 } else if (!strcmp(buf, "scsi")) {
832 max_devs = MAX_SCSI_DEVS;
833 } else if (!strcmp(buf, "floppy")) {
836 } else if (!strcmp(buf, "pflash")) {
839 } else if (!strcmp(buf, "mtd")) {
842 } else if (!strcmp(buf, "sd")) {
845 } else if (!strcmp(buf, "virtio")) {
848 } else if (!strcmp(buf, "xen")) {
851 } else if (!strcmp(buf, "none")) {
855 fprintf(stderr, "qemu: unsupported bus type '%s'\n", buf);
860 if (cyls || heads || secs) {
861 if (cyls < 1 || (type == IF_IDE && cyls > 16383)) {
862 fprintf(stderr, "qemu: '%s' invalid physical cyls number\n", buf);
865 if (heads < 1 || (type == IF_IDE && heads > 16)) {
866 fprintf(stderr, "qemu: '%s' invalid physical heads number\n", buf);
869 if (secs < 1 || (type == IF_IDE && secs > 63)) {
870 fprintf(stderr, "qemu: '%s' invalid physical secs number\n", buf);
875 if ((buf = qemu_opt_get(opts, "trans")) != NULL) {
878 "qemu: '%s' trans must be used with cyls,heads and secs\n",
882 if (!strcmp(buf, "none"))
883 translation = BIOS_ATA_TRANSLATION_NONE;
884 else if (!strcmp(buf, "lba"))
885 translation = BIOS_ATA_TRANSLATION_LBA;
886 else if (!strcmp(buf, "auto"))
887 translation = BIOS_ATA_TRANSLATION_AUTO;
889 fprintf(stderr, "qemu: '%s' invalid translation type\n", buf);
894 if ((buf = qemu_opt_get(opts, "media")) != NULL) {
895 if (!strcmp(buf, "disk")) {
897 } else if (!strcmp(buf, "cdrom")) {
898 if (cyls || secs || heads) {
900 "qemu: '%s' invalid physical CHS format\n", buf);
905 fprintf(stderr, "qemu: '%s' invalid media\n", buf);
910 if ((buf = qemu_opt_get(opts, "cache")) != NULL) {
911 if (!strcmp(buf, "off") || !strcmp(buf, "none")) {
912 bdrv_flags |= BDRV_O_NOCACHE;
913 } else if (!strcmp(buf, "writeback")) {
914 bdrv_flags |= BDRV_O_CACHE_WB;
915 } else if (!strcmp(buf, "unsafe")) {
916 bdrv_flags |= BDRV_O_CACHE_WB;
917 bdrv_flags |= BDRV_O_NO_FLUSH;
918 } else if (!strcmp(buf, "writethrough")) {
919 /* this is the default */
921 fprintf(stderr, "qemu: invalid cache option\n");
926 #ifdef CONFIG_LINUX_AIO
927 if ((buf = qemu_opt_get(opts, "aio")) != NULL) {
928 if (!strcmp(buf, "native")) {
929 bdrv_flags |= BDRV_O_NATIVE_AIO;
930 } else if (!strcmp(buf, "threads")) {
931 /* this is the default */
933 fprintf(stderr, "qemu: invalid aio option\n");
939 if ((buf = qemu_opt_get(opts, "format")) != NULL) {
940 if (strcmp(buf, "?") == 0) {
941 fprintf(stderr, "qemu: Supported formats:");
942 bdrv_iterate_format(bdrv_format_print, NULL);
943 fprintf(stderr, "\n");
946 drv = bdrv_find_whitelisted_format(buf);
948 fprintf(stderr, "qemu: '%s' invalid format\n", buf);
953 on_write_error = BLOCK_ERR_STOP_ENOSPC;
954 if ((buf = qemu_opt_get(opts, "werror")) != NULL) {
955 if (type != IF_IDE && type != IF_SCSI && type != IF_VIRTIO && type != IF_NONE) {
956 fprintf(stderr, "werror is no supported by this format\n");
960 on_write_error = parse_block_error_action(buf, 0);
961 if (on_write_error < 0) {
966 on_read_error = BLOCK_ERR_REPORT;
967 if ((buf = qemu_opt_get(opts, "rerror")) != NULL) {
968 if (type != IF_IDE && type != IF_VIRTIO && type != IF_NONE) {
969 fprintf(stderr, "rerror is no supported by this format\n");
973 on_read_error = parse_block_error_action(buf, 1);
974 if (on_read_error < 0) {
979 if ((devaddr = qemu_opt_get(opts, "addr")) != NULL) {
980 if (type != IF_VIRTIO) {
981 fprintf(stderr, "addr is not supported\n");
986 /* compute bus and unit according index */
989 if (bus_id != 0 || unit_id != -1) {
991 "qemu: index cannot be used with bus and unit\n");
999 unit_id = index % max_devs;
1000 bus_id = index / max_devs;
1004 /* if user doesn't specify a unit_id,
1005 * try to find the first free
1008 if (unit_id == -1) {
1010 while (drive_get(type, bus_id, unit_id) != NULL) {
1012 if (max_devs && unit_id >= max_devs) {
1013 unit_id -= max_devs;
1021 if (max_devs && unit_id >= max_devs) {
1022 fprintf(stderr, "qemu: unit %d too big (max is %d)\n",
1023 unit_id, max_devs - 1);
1028 * ignore multiple definitions
1031 if (drive_get(type, bus_id, unit_id) != NULL) {
1038 dinfo = qemu_mallocz(sizeof(*dinfo));
1039 if ((buf = qemu_opts_id(opts)) != NULL) {
1040 dinfo->id = qemu_strdup(buf);
1042 /* no id supplied -> create one */
1043 dinfo->id = qemu_mallocz(32);
1044 if (type == IF_IDE || type == IF_SCSI)
1045 mediastr = (media == MEDIA_CDROM) ? "-cd" : "-hd";
1047 snprintf(dinfo->id, 32, "%s%i%s%i",
1048 devname, bus_id, mediastr, unit_id);
1050 snprintf(dinfo->id, 32, "%s%s%i",
1051 devname, mediastr, unit_id);
1053 dinfo->bdrv = bdrv_new(dinfo->id);
1054 dinfo->devaddr = devaddr;
1056 dinfo->bus = bus_id;
1057 dinfo->unit = unit_id;
1058 dinfo->on_read_error = on_read_error;
1059 dinfo->on_write_error = on_write_error;
1062 strncpy(dinfo->serial, serial, sizeof(serial));
1063 QTAILQ_INSERT_TAIL(&drives, dinfo, next);
1073 bdrv_set_geometry_hint(dinfo->bdrv, cyls, heads, secs);
1074 bdrv_set_translation_hint(dinfo->bdrv, translation);
1078 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_CDROM);
1083 /* FIXME: This isn't really a floppy, but it's a reasonable
1086 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_FLOPPY);
1092 /* add virtio block device */
1093 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
1094 qemu_opt_set(opts, "driver", "virtio-blk-pci");
1095 qemu_opt_set(opts, "drive", dinfo->id);
1097 qemu_opt_set(opts, "addr", devaddr);
1107 /* always use cache=unsafe with snapshot */
1108 bdrv_flags &= ~BDRV_O_CACHE_MASK;
1109 bdrv_flags |= (BDRV_O_SNAPSHOT|BDRV_O_CACHE_WB|BDRV_O_NO_FLUSH);
1112 if (media == MEDIA_CDROM) {
1113 /* CDROM is fine for any interface, don't check. */
1115 } else if (ro == 1) {
1116 if (type != IF_SCSI && type != IF_VIRTIO && type != IF_FLOPPY && type != IF_NONE) {
1117 fprintf(stderr, "qemu: readonly flag not supported for drive with this interface\n");
1122 bdrv_flags |= ro ? 0 : BDRV_O_RDWR;
1124 if (bdrv_open(dinfo->bdrv, file, bdrv_flags, drv) < 0) {
1125 fprintf(stderr, "qemu: could not open disk image %s: %s\n",
1126 file, strerror(errno));
1130 if (bdrv_key_required(dinfo->bdrv))
1136 static int drive_init_func(QemuOpts *opts, void *opaque)
1138 QEMUMachine *machine = opaque;
1139 int fatal_error = 0;
1141 if (drive_init(opts, machine, &fatal_error) == NULL) {
1148 static int drive_enable_snapshot(QemuOpts *opts, void *opaque)
1150 if (NULL == qemu_opt_get(opts, "snapshot")) {
1151 qemu_opt_set(opts, "snapshot", "on");
1156 void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
1158 boot_set_handler = func;
1159 boot_set_opaque = opaque;
1162 int qemu_boot_set(const char *boot_devices)
1164 if (!boot_set_handler) {
1167 return boot_set_handler(boot_set_opaque, boot_devices);
1170 static void validate_bootdevices(char *devices)
1172 /* We just do some generic consistency checks */
1176 for (p = devices; *p != '\0'; p++) {
1177 /* Allowed boot devices are:
1178 * a-b: floppy disk drives
1179 * c-f: IDE disk drives
1180 * g-m: machine implementation dependant drives
1181 * n-p: network devices
1182 * It's up to each machine implementation to check if the given boot
1183 * devices match the actual hardware implementation and firmware
1186 if (*p < 'a' || *p > 'p') {
1187 fprintf(stderr, "Invalid boot device '%c'\n", *p);
1190 if (bitmap & (1 << (*p - 'a'))) {
1191 fprintf(stderr, "Boot device '%c' was given twice\n", *p);
1194 bitmap |= 1 << (*p - 'a');
1198 static void restore_boot_devices(void *opaque)
1200 char *standard_boot_devices = opaque;
1201 static int first = 1;
1203 /* Restore boot order and remove ourselves after the first boot */
1209 qemu_boot_set(standard_boot_devices);
1211 qemu_unregister_reset(restore_boot_devices, standard_boot_devices);
1212 qemu_free(standard_boot_devices);
1215 static void numa_add(const char *optarg)
1219 unsigned long long value, endvalue;
1222 optarg = get_opt_name(option, 128, optarg, ',') + 1;
1223 if (!strcmp(option, "node")) {
1224 if (get_param_value(option, 128, "nodeid", optarg) == 0) {
1225 nodenr = nb_numa_nodes;
1227 nodenr = strtoull(option, NULL, 10);
1230 if (get_param_value(option, 128, "mem", optarg) == 0) {
1231 node_mem[nodenr] = 0;
1233 value = strtoull(option, &endptr, 0);
1235 case 0: case 'M': case 'm':
1242 node_mem[nodenr] = value;
1244 if (get_param_value(option, 128, "cpus", optarg) == 0) {
1245 node_cpumask[nodenr] = 0;
1247 value = strtoull(option, &endptr, 10);
1250 fprintf(stderr, "only 64 CPUs in NUMA mode supported.\n");
1252 if (*endptr == '-') {
1253 endvalue = strtoull(endptr+1, &endptr, 10);
1254 if (endvalue >= 63) {
1257 "only 63 CPUs in NUMA mode supported.\n");
1259 value = (2ULL << endvalue) - (1ULL << value);
1261 value = 1ULL << value;
1264 node_cpumask[nodenr] = value;
1271 static void smp_parse(const char *optarg)
1273 int smp, sockets = 0, threads = 0, cores = 0;
1277 smp = strtoul(optarg, &endptr, 10);
1278 if (endptr != optarg) {
1279 if (*endptr == ',') {
1283 if (get_param_value(option, 128, "sockets", endptr) != 0)
1284 sockets = strtoull(option, NULL, 10);
1285 if (get_param_value(option, 128, "cores", endptr) != 0)
1286 cores = strtoull(option, NULL, 10);
1287 if (get_param_value(option, 128, "threads", endptr) != 0)
1288 threads = strtoull(option, NULL, 10);
1289 if (get_param_value(option, 128, "maxcpus", endptr) != 0)
1290 max_cpus = strtoull(option, NULL, 10);
1292 /* compute missing values, prefer sockets over cores over threads */
1293 if (smp == 0 || sockets == 0) {
1294 sockets = sockets > 0 ? sockets : 1;
1295 cores = cores > 0 ? cores : 1;
1296 threads = threads > 0 ? threads : 1;
1298 smp = cores * threads * sockets;
1302 threads = threads > 0 ? threads : 1;
1303 cores = smp / (sockets * threads);
1306 threads = smp / (cores * sockets);
1311 smp_cores = cores > 0 ? cores : 1;
1312 smp_threads = threads > 0 ? threads : 1;
1314 max_cpus = smp_cpus;
1317 /***********************************************************/
1320 static int usb_device_add(const char *devname, int is_hotplug)
1323 USBDevice *dev = NULL;
1328 /* drivers with .usbdevice_name entry in USBDeviceInfo */
1329 dev = usbdevice_create(devname);
1333 /* the other ones */
1334 if (strstart(devname, "host:", &p)) {
1335 dev = usb_host_device_open(p);
1336 } else if (!strcmp(devname, "bt") || strstart(devname, "bt:", &p)) {
1337 dev = usb_bt_init(devname[2] ? hci_init(p) :
1338 bt_new_hci(qemu_find_bt_vlan(0)));
1349 static int usb_device_del(const char *devname)
1354 if (strstart(devname, "host:", &p))
1355 return usb_host_device_close(p);
1360 p = strchr(devname, '.');
1363 bus_num = strtoul(devname, NULL, 0);
1364 addr = strtoul(p + 1, NULL, 0);
1366 return usb_device_delete_addr(bus_num, addr);
1369 static int usb_parse(const char *cmdline)
1372 r = usb_device_add(cmdline, 0);
1374 fprintf(stderr, "qemu: could not add USB device '%s'\n", cmdline);
1379 void do_usb_add(Monitor *mon, const QDict *qdict)
1381 const char *devname = qdict_get_str(qdict, "devname");
1382 if (usb_device_add(devname, 1) < 0) {
1383 error_report("could not add USB device '%s'", devname);
1387 void do_usb_del(Monitor *mon, const QDict *qdict)
1389 const char *devname = qdict_get_str(qdict, "devname");
1390 if (usb_device_del(devname) < 0) {
1391 error_report("could not delete USB device '%s'", devname);
1395 /***********************************************************/
1396 /* PCMCIA/Cardbus */
1398 static struct pcmcia_socket_entry_s {
1399 PCMCIASocket *socket;
1400 struct pcmcia_socket_entry_s *next;
1401 } *pcmcia_sockets = 0;
1403 void pcmcia_socket_register(PCMCIASocket *socket)
1405 struct pcmcia_socket_entry_s *entry;
1407 entry = qemu_malloc(sizeof(struct pcmcia_socket_entry_s));
1408 entry->socket = socket;
1409 entry->next = pcmcia_sockets;
1410 pcmcia_sockets = entry;
1413 void pcmcia_socket_unregister(PCMCIASocket *socket)
1415 struct pcmcia_socket_entry_s *entry, **ptr;
1417 ptr = &pcmcia_sockets;
1418 for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
1419 if (entry->socket == socket) {
1425 void pcmcia_info(Monitor *mon)
1427 struct pcmcia_socket_entry_s *iter;
1429 if (!pcmcia_sockets)
1430 monitor_printf(mon, "No PCMCIA sockets\n");
1432 for (iter = pcmcia_sockets; iter; iter = iter->next)
1433 monitor_printf(mon, "%s: %s\n", iter->socket->slot_string,
1434 iter->socket->attached ? iter->socket->card_string :
1438 /***********************************************************/
1441 typedef struct IOHandlerRecord {
1443 IOCanReadHandler *fd_read_poll;
1445 IOHandler *fd_write;
1448 /* temporary data */
1450 QLIST_ENTRY(IOHandlerRecord) next;
1453 static QLIST_HEAD(, IOHandlerRecord) io_handlers =
1454 QLIST_HEAD_INITIALIZER(io_handlers);
1457 /* XXX: fd_read_poll should be suppressed, but an API change is
1458 necessary in the character devices to suppress fd_can_read(). */
1459 int qemu_set_fd_handler2(int fd,
1460 IOCanReadHandler *fd_read_poll,
1462 IOHandler *fd_write,
1465 IOHandlerRecord *ioh;
1467 if (!fd_read && !fd_write) {
1468 QLIST_FOREACH(ioh, &io_handlers, next) {
1469 if (ioh->fd == fd) {
1475 QLIST_FOREACH(ioh, &io_handlers, next) {
1479 ioh = qemu_mallocz(sizeof(IOHandlerRecord));
1480 QLIST_INSERT_HEAD(&io_handlers, ioh, next);
1483 ioh->fd_read_poll = fd_read_poll;
1484 ioh->fd_read = fd_read;
1485 ioh->fd_write = fd_write;
1486 ioh->opaque = opaque;
1492 int qemu_set_fd_handler(int fd,
1494 IOHandler *fd_write,
1497 return qemu_set_fd_handler2(fd, NULL, fd_read, fd_write, opaque);
1500 /***********************************************************/
1501 /* machine registration */
1503 static QEMUMachine *first_machine = NULL;
1504 QEMUMachine *current_machine = NULL;
1506 int qemu_register_machine(QEMUMachine *m)
1509 pm = &first_machine;
1517 static QEMUMachine *find_machine(const char *name)
1521 for(m = first_machine; m != NULL; m = m->next) {
1522 if (!strcmp(m->name, name))
1524 if (m->alias && !strcmp(m->alias, name))
1530 static QEMUMachine *find_default_machine(void)
1534 for(m = first_machine; m != NULL; m = m->next) {
1535 if (m->is_default) {
1542 /***********************************************************/
1543 /* main execution loop */
1545 static void gui_update(void *opaque)
1547 uint64_t interval = GUI_REFRESH_INTERVAL;
1548 DisplayState *ds = opaque;
1549 DisplayChangeListener *dcl = ds->listeners;
1551 qemu_flush_coalesced_mmio_buffer();
1554 while (dcl != NULL) {
1555 if (dcl->gui_timer_interval &&
1556 dcl->gui_timer_interval < interval)
1557 interval = dcl->gui_timer_interval;
1560 qemu_mod_timer(ds->gui_timer, interval + qemu_get_clock(rt_clock));
1563 static void nographic_update(void *opaque)
1565 uint64_t interval = GUI_REFRESH_INTERVAL;
1567 qemu_flush_coalesced_mmio_buffer();
1568 qemu_mod_timer(nographic_timer, interval + qemu_get_clock(rt_clock));
1571 struct vm_change_state_entry {
1572 VMChangeStateHandler *cb;
1574 QLIST_ENTRY (vm_change_state_entry) entries;
1577 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1579 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1582 VMChangeStateEntry *e;
1584 e = qemu_mallocz(sizeof (*e));
1588 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1592 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1594 QLIST_REMOVE (e, entries);
1598 void vm_state_notify(int running, int reason)
1600 VMChangeStateEntry *e;
1602 for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
1603 e->cb(e->opaque, running, reason);
1612 vm_state_notify(1, 0);
1614 monitor_protocol_event(QEVENT_RESUME, NULL);
1618 /* reset/shutdown handler */
1620 typedef struct QEMUResetEntry {
1621 QTAILQ_ENTRY(QEMUResetEntry) entry;
1622 QEMUResetHandler *func;
1626 static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
1627 QTAILQ_HEAD_INITIALIZER(reset_handlers);
1628 static int reset_requested;
1629 static int shutdown_requested;
1630 static int powerdown_requested;
1631 int debug_requested;
1632 int vmstop_requested;
1634 int qemu_shutdown_requested(void)
1636 int r = shutdown_requested;
1637 shutdown_requested = 0;
1641 int qemu_reset_requested(void)
1643 int r = reset_requested;
1644 reset_requested = 0;
1648 int qemu_powerdown_requested(void)
1650 int r = powerdown_requested;
1651 powerdown_requested = 0;
1655 static int qemu_debug_requested(void)
1657 int r = debug_requested;
1658 debug_requested = 0;
1662 static int qemu_vmstop_requested(void)
1664 int r = vmstop_requested;
1665 vmstop_requested = 0;
1669 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
1671 QEMUResetEntry *re = qemu_mallocz(sizeof(QEMUResetEntry));
1674 re->opaque = opaque;
1675 QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
1678 void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
1682 QTAILQ_FOREACH(re, &reset_handlers, entry) {
1683 if (re->func == func && re->opaque == opaque) {
1684 QTAILQ_REMOVE(&reset_handlers, re, entry);
1691 void qemu_system_reset(void)
1693 QEMUResetEntry *re, *nre;
1695 /* reset all devices */
1696 QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
1697 re->func(re->opaque);
1699 monitor_protocol_event(QEVENT_RESET, NULL);
1700 cpu_synchronize_all_post_reset();
1703 void qemu_system_reset_request(void)
1706 shutdown_requested = 1;
1708 reset_requested = 1;
1710 qemu_notify_event();
1713 void qemu_system_shutdown_request(void)
1715 shutdown_requested = 1;
1716 qemu_notify_event();
1719 void qemu_system_powerdown_request(void)
1721 powerdown_requested = 1;
1722 qemu_notify_event();
1725 void main_loop_wait(int nonblocking)
1727 IOHandlerRecord *ioh;
1728 fd_set rfds, wfds, xfds;
1736 timeout = qemu_calculate_timeout();
1737 qemu_bh_update_timeout(&timeout);
1740 os_host_main_loop_wait(&timeout);
1742 /* poll any events */
1743 /* XXX: separate device handlers from system ones */
1748 QLIST_FOREACH(ioh, &io_handlers, next) {
1752 (!ioh->fd_read_poll ||
1753 ioh->fd_read_poll(ioh->opaque) != 0)) {
1754 FD_SET(ioh->fd, &rfds);
1758 if (ioh->fd_write) {
1759 FD_SET(ioh->fd, &wfds);
1765 tv.tv_sec = timeout / 1000;
1766 tv.tv_usec = (timeout % 1000) * 1000;
1768 slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
1770 qemu_mutex_unlock_iothread();
1771 ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
1772 qemu_mutex_lock_iothread();
1774 IOHandlerRecord *pioh;
1776 QLIST_FOREACH_SAFE(ioh, &io_handlers, next, pioh) {
1778 QLIST_REMOVE(ioh, next);
1782 if (ioh->fd_read && FD_ISSET(ioh->fd, &rfds)) {
1783 ioh->fd_read(ioh->opaque);
1785 if (ioh->fd_write && FD_ISSET(ioh->fd, &wfds)) {
1786 ioh->fd_write(ioh->opaque);
1791 slirp_select_poll(&rfds, &wfds, &xfds, (ret < 0));
1793 qemu_run_all_timers();
1795 /* Check bottom-halves last in case any of the earlier events triggered
1801 static int vm_can_run(void)
1803 if (powerdown_requested)
1805 if (reset_requested)
1807 if (shutdown_requested)
1809 if (debug_requested)
1814 qemu_irq qemu_system_powerdown;
1816 static void main_loop(void)
1820 qemu_main_loop_start();
1824 bool nonblocking = false;
1825 #ifdef CONFIG_PROFILER
1828 #ifndef CONFIG_IOTHREAD
1829 nonblocking = tcg_cpu_exec();
1831 #ifdef CONFIG_PROFILER
1832 ti = profile_getclock();
1834 main_loop_wait(nonblocking);
1835 #ifdef CONFIG_PROFILER
1836 dev_time += profile_getclock() - ti;
1838 } while (vm_can_run());
1840 if ((r = qemu_debug_requested())) {
1843 if (qemu_shutdown_requested()) {
1844 monitor_protocol_event(QEVENT_SHUTDOWN, NULL);
1851 if (qemu_reset_requested()) {
1853 qemu_system_reset();
1856 if (qemu_powerdown_requested()) {
1857 monitor_protocol_event(QEVENT_POWERDOWN, NULL);
1858 qemu_irq_raise(qemu_system_powerdown);
1860 if ((r = qemu_vmstop_requested())) {
1867 static void version(void)
1869 printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
1872 static void help(int exitcode)
1874 const char *options_help =
1875 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
1877 #define DEFHEADING(text) stringify(text) "\n"
1878 #include "qemu-options.h"
1884 printf("usage: %s [options] [disk_image]\n"
1886 "'disk_image' is a raw hard disk image for IDE hard disk 0\n"
1889 "During emulation, the following keys are useful:\n"
1890 "ctrl-alt-f toggle full screen\n"
1891 "ctrl-alt-n switch to virtual console 'n'\n"
1892 "ctrl-alt toggle mouse and keyboard grab\n"
1894 "When using -nographic, press 'ctrl-a h' to get some help.\n",
1900 #define HAS_ARG 0x0001
1903 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
1905 #define DEFHEADING(text)
1906 #include "qemu-options.h"
1912 typedef struct QEMUOption {
1919 static const QEMUOption qemu_options[] = {
1920 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1921 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
1922 { option, opt_arg, opt_enum, arch_mask },
1923 #define DEFHEADING(text)
1924 #include "qemu-options.h"
1930 static void select_vgahw (const char *p)
1935 vga_interface_type = VGA_NONE;
1936 if (strstart(p, "std", &opts)) {
1937 vga_interface_type = VGA_STD;
1938 } else if (strstart(p, "cirrus", &opts)) {
1939 vga_interface_type = VGA_CIRRUS;
1940 } else if (strstart(p, "vmware", &opts)) {
1941 vga_interface_type = VGA_VMWARE;
1942 } else if (strstart(p, "xenfb", &opts)) {
1943 vga_interface_type = VGA_XENFB;
1944 } else if (!strstart(p, "none", &opts)) {
1946 fprintf(stderr, "Unknown vga type: %s\n", p);
1950 const char *nextopt;
1952 if (strstart(opts, ",retrace=", &nextopt)) {
1954 if (strstart(opts, "dumb", &nextopt))
1955 vga_retrace_method = VGA_RETRACE_DUMB;
1956 else if (strstart(opts, "precise", &nextopt))
1957 vga_retrace_method = VGA_RETRACE_PRECISE;
1958 else goto invalid_vga;
1959 } else goto invalid_vga;
1964 static int balloon_parse(const char *arg)
1968 if (strcmp(arg, "none") == 0) {
1972 if (!strncmp(arg, "virtio", 6)) {
1973 if (arg[6] == ',') {
1974 /* have params -> parse them */
1975 opts = qemu_opts_parse(&qemu_device_opts, arg+7, 0);
1979 /* create empty opts */
1980 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
1982 qemu_opt_set(opts, "driver", "virtio-balloon-pci");
1991 static void termsig_handler(int signal)
1993 qemu_system_shutdown_request();
1996 static void sigchld_handler(int signal)
1998 waitpid(-1, NULL, WNOHANG);
2001 static void sighandler_setup(void)
2003 struct sigaction act;
2005 memset(&act, 0, sizeof(act));
2006 act.sa_handler = termsig_handler;
2007 sigaction(SIGINT, &act, NULL);
2008 sigaction(SIGHUP, &act, NULL);
2009 sigaction(SIGTERM, &act, NULL);
2011 act.sa_handler = sigchld_handler;
2012 act.sa_flags = SA_NOCLDSTOP;
2013 sigaction(SIGCHLD, &act, NULL);
2019 /* Look for support files in the same directory as the executable. */
2020 static char *find_datadir(const char *argv0)
2026 len = GetModuleFileName(NULL, buf, sizeof(buf) - 1);
2033 while (p != buf && *p != '\\')
2036 if (access(buf, R_OK) == 0) {
2037 return qemu_strdup(buf);
2043 /* Find a likely location for support files using the location of the binary.
2044 For installed binaries this will be "$bindir/../share/qemu". When
2045 running from the build tree this will be "$bindir/../pc-bios". */
2046 #define SHARE_SUFFIX "/share/qemu"
2047 #define BUILD_SUFFIX "/pc-bios"
2048 static char *find_datadir(const char *argv0)
2056 #if defined(__linux__)
2059 len = readlink("/proc/self/exe", buf, sizeof(buf) - 1);
2065 #elif defined(__FreeBSD__)
2067 static int mib[4] = {CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, -1};
2068 size_t len = sizeof(buf) - 1;
2071 if (!sysctl(mib, sizeof(mib)/sizeof(*mib), buf, &len, NULL, 0) &&
2073 buf[sizeof(buf) - 1] = '\0';
2078 /* If we don't have any way of figuring out the actual executable
2079 location then try argv[0]. */
2081 p = realpath(argv0, buf);
2089 max_len = strlen(dir) +
2090 MAX(strlen(SHARE_SUFFIX), strlen(BUILD_SUFFIX)) + 1;
2091 res = qemu_mallocz(max_len);
2092 snprintf(res, max_len, "%s%s", dir, SHARE_SUFFIX);
2093 if (access(res, R_OK)) {
2094 snprintf(res, max_len, "%s%s", dir, BUILD_SUFFIX);
2095 if (access(res, R_OK)) {
2107 char *qemu_find_file(int type, const char *name)
2113 /* If name contains path separators then try it as a straight path. */
2114 if ((strchr(name, '/') || strchr(name, '\\'))
2115 && access(name, R_OK) == 0) {
2116 return qemu_strdup(name);
2119 case QEMU_FILE_TYPE_BIOS:
2122 case QEMU_FILE_TYPE_KEYMAP:
2123 subdir = "keymaps/";
2128 len = strlen(data_dir) + strlen(name) + strlen(subdir) + 2;
2129 buf = qemu_mallocz(len);
2130 snprintf(buf, len, "%s/%s%s", data_dir, subdir, name);
2131 if (access(buf, R_OK)) {
2138 static int device_help_func(QemuOpts *opts, void *opaque)
2140 return qdev_device_help(opts);
2143 static int device_init_func(QemuOpts *opts, void *opaque)
2147 dev = qdev_device_add(opts);
2153 static int chardev_init_func(QemuOpts *opts, void *opaque)
2155 CharDriverState *chr;
2157 chr = qemu_chr_open_opts(opts, NULL);
2164 static int fsdev_init_func(QemuOpts *opts, void *opaque)
2167 ret = qemu_fsdev_add(opts);
2173 static int mon_init_func(QemuOpts *opts, void *opaque)
2175 CharDriverState *chr;
2176 const char *chardev;
2180 mode = qemu_opt_get(opts, "mode");
2184 if (strcmp(mode, "readline") == 0) {
2185 flags = MONITOR_USE_READLINE;
2186 } else if (strcmp(mode, "control") == 0) {
2187 flags = MONITOR_USE_CONTROL;
2189 fprintf(stderr, "unknown monitor mode \"%s\"\n", mode);
2193 if (qemu_opt_get_bool(opts, "default", 0))
2194 flags |= MONITOR_IS_DEFAULT;
2196 chardev = qemu_opt_get(opts, "chardev");
2197 chr = qemu_chr_find(chardev);
2199 fprintf(stderr, "chardev \"%s\" not found\n", chardev);
2203 monitor_init(chr, flags);
2207 static void monitor_parse(const char *optarg, const char *mode)
2209 static int monitor_device_index = 0;
2215 if (strstart(optarg, "chardev:", &p)) {
2216 snprintf(label, sizeof(label), "%s", p);
2218 snprintf(label, sizeof(label), "compat_monitor%d",
2219 monitor_device_index);
2220 if (monitor_device_index == 0) {
2223 opts = qemu_chr_parse_compat(label, optarg);
2225 fprintf(stderr, "parse error: %s\n", optarg);
2230 opts = qemu_opts_create(&qemu_mon_opts, label, 1);
2232 fprintf(stderr, "duplicate chardev: %s\n", label);
2235 qemu_opt_set(opts, "mode", mode);
2236 qemu_opt_set(opts, "chardev", label);
2238 qemu_opt_set(opts, "default", "on");
2239 monitor_device_index++;
2242 struct device_config {
2244 DEV_USB, /* -usbdevice */
2246 DEV_SERIAL, /* -serial */
2247 DEV_PARALLEL, /* -parallel */
2248 DEV_VIRTCON, /* -virtioconsole */
2249 DEV_DEBUGCON, /* -debugcon */
2251 const char *cmdline;
2252 QTAILQ_ENTRY(device_config) next;
2254 QTAILQ_HEAD(, device_config) device_configs = QTAILQ_HEAD_INITIALIZER(device_configs);
2256 static void add_device_config(int type, const char *cmdline)
2258 struct device_config *conf;
2260 conf = qemu_mallocz(sizeof(*conf));
2262 conf->cmdline = cmdline;
2263 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2266 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2268 struct device_config *conf;
2271 QTAILQ_FOREACH(conf, &device_configs, next) {
2272 if (conf->type != type)
2274 rc = func(conf->cmdline);
2281 static int serial_parse(const char *devname)
2283 static int index = 0;
2286 if (strcmp(devname, "none") == 0)
2288 if (index == MAX_SERIAL_PORTS) {
2289 fprintf(stderr, "qemu: too many serial ports\n");
2292 snprintf(label, sizeof(label), "serial%d", index);
2293 serial_hds[index] = qemu_chr_open(label, devname, NULL);
2294 if (!serial_hds[index]) {
2295 fprintf(stderr, "qemu: could not open serial device '%s': %s\n",
2296 devname, strerror(errno));
2303 static int parallel_parse(const char *devname)
2305 static int index = 0;
2308 if (strcmp(devname, "none") == 0)
2310 if (index == MAX_PARALLEL_PORTS) {
2311 fprintf(stderr, "qemu: too many parallel ports\n");
2314 snprintf(label, sizeof(label), "parallel%d", index);
2315 parallel_hds[index] = qemu_chr_open(label, devname, NULL);
2316 if (!parallel_hds[index]) {
2317 fprintf(stderr, "qemu: could not open parallel device '%s': %s\n",
2318 devname, strerror(errno));
2325 static int virtcon_parse(const char *devname)
2327 static int index = 0;
2329 QemuOpts *bus_opts, *dev_opts;
2331 if (strcmp(devname, "none") == 0)
2333 if (index == MAX_VIRTIO_CONSOLES) {
2334 fprintf(stderr, "qemu: too many virtio consoles\n");
2338 bus_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2339 qemu_opt_set(bus_opts, "driver", "virtio-serial");
2341 dev_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2342 qemu_opt_set(dev_opts, "driver", "virtconsole");
2344 snprintf(label, sizeof(label), "virtcon%d", index);
2345 virtcon_hds[index] = qemu_chr_open(label, devname, NULL);
2346 if (!virtcon_hds[index]) {
2347 fprintf(stderr, "qemu: could not open virtio console '%s': %s\n",
2348 devname, strerror(errno));
2351 qemu_opt_set(dev_opts, "chardev", label);
2357 static int debugcon_parse(const char *devname)
2361 if (!qemu_chr_open("debugcon", devname, NULL)) {
2364 opts = qemu_opts_create(&qemu_device_opts, "debugcon", 1);
2366 fprintf(stderr, "qemu: already have a debugcon device\n");
2369 qemu_opt_set(opts, "driver", "isa-debugcon");
2370 qemu_opt_set(opts, "chardev", "debugcon");
2374 static const QEMUOption *lookup_opt(int argc, char **argv,
2375 const char **poptarg, int *poptind)
2377 const QEMUOption *popt;
2378 int optind = *poptind;
2379 char *r = argv[optind];
2382 loc_set_cmdline(argv, optind, 1);
2384 /* Treat --foo the same as -foo. */
2387 popt = qemu_options;
2390 error_report("invalid option");
2393 if (!strcmp(popt->name, r + 1))
2397 if (popt->flags & HAS_ARG) {
2398 if (optind >= argc) {
2399 error_report("requires an argument");
2402 optarg = argv[optind++];
2403 loc_set_cmdline(argv, optind - 2, 2);
2414 int main(int argc, char **argv, char **envp)
2416 const char *gdbstub_dev = NULL;
2418 int snapshot, linux_boot;
2419 const char *icount_option = NULL;
2420 const char *initrd_filename;
2421 const char *kernel_filename, *kernel_cmdline;
2422 char boot_devices[33] = "cad"; /* default to HD->floppy->CD-ROM */
2424 DisplayChangeListener *dcl;
2425 int cyls, heads, secs, translation;
2426 QemuOpts *hda_opts = NULL, *opts;
2429 const char *loadvm = NULL;
2430 QEMUMachine *machine;
2431 const char *cpu_model;
2436 const char *pid_file = NULL;
2437 const char *incoming = NULL;
2440 struct passwd *pwd = NULL;
2441 const char *chroot_dir = NULL;
2442 const char *run_as = NULL;
2444 int show_vnc_port = 0;
2447 error_set_progname(argv[0]);
2451 qemu_cache_utils_init(envp);
2453 QLIST_INIT (&vm_change_state_head);
2454 os_setup_early_signal_handling();
2456 module_call_init(MODULE_INIT_MACHINE);
2457 machine = find_default_machine();
2459 initrd_filename = NULL;
2462 kernel_filename = NULL;
2463 kernel_cmdline = "";
2464 cyls = heads = secs = 0;
2465 translation = BIOS_ATA_TRANSLATION_AUTO;
2467 for (i = 0; i < MAX_NODES; i++) {
2469 node_cpumask[i] = 0;
2478 /* first pass of option parsing */
2480 while (optind < argc) {
2481 if (argv[optind][0] != '-') {
2486 const QEMUOption *popt;
2488 popt = lookup_opt(argc, argv, &optarg, &optind);
2489 switch (popt->index) {
2490 case QEMU_OPTION_nodefconfig:
2500 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2501 if (ret < 0 && ret != -ENOENT) {
2505 ret = qemu_read_config_file(arch_config_name);
2506 if (ret < 0 && ret != -ENOENT) {
2512 /* second pass of option parsing */
2517 if (argv[optind][0] != '-') {
2518 hda_opts = drive_add(argv[optind++], HD_ALIAS, 0);
2520 const QEMUOption *popt;
2522 popt = lookup_opt(argc, argv, &optarg, &optind);
2523 if (!(popt->arch_mask & arch_type)) {
2524 printf("Option %s not supported for this target\n", popt->name);
2527 switch(popt->index) {
2529 machine = find_machine(optarg);
2532 printf("Supported machines are:\n");
2533 for(m = first_machine; m != NULL; m = m->next) {
2535 printf("%-10s %s (alias of %s)\n",
2536 m->alias, m->desc, m->name);
2537 printf("%-10s %s%s\n",
2539 m->is_default ? " (default)" : "");
2541 exit(*optarg != '?');
2544 case QEMU_OPTION_cpu:
2545 /* hw initialization will check this */
2546 if (*optarg == '?') {
2547 list_cpus(stdout, &fprintf, optarg);
2553 case QEMU_OPTION_initrd:
2554 initrd_filename = optarg;
2556 case QEMU_OPTION_hda:
2558 hda_opts = drive_add(optarg, HD_ALIAS, 0);
2560 hda_opts = drive_add(optarg, HD_ALIAS
2561 ",cyls=%d,heads=%d,secs=%d%s",
2562 0, cyls, heads, secs,
2563 translation == BIOS_ATA_TRANSLATION_LBA ?
2565 translation == BIOS_ATA_TRANSLATION_NONE ?
2566 ",trans=none" : "");
2568 case QEMU_OPTION_hdb:
2569 case QEMU_OPTION_hdc:
2570 case QEMU_OPTION_hdd:
2571 drive_add(optarg, HD_ALIAS, popt->index - QEMU_OPTION_hda);
2573 case QEMU_OPTION_drive:
2574 drive_add(NULL, "%s", optarg);
2576 case QEMU_OPTION_set:
2577 if (qemu_set_option(optarg) != 0)
2580 case QEMU_OPTION_global:
2581 if (qemu_global_option(optarg) != 0)
2584 case QEMU_OPTION_mtdblock:
2585 drive_add(optarg, MTD_ALIAS);
2587 case QEMU_OPTION_sd:
2588 drive_add(optarg, SD_ALIAS);
2590 case QEMU_OPTION_pflash:
2591 drive_add(optarg, PFLASH_ALIAS);
2593 case QEMU_OPTION_snapshot:
2596 case QEMU_OPTION_hdachs:
2600 cyls = strtol(p, (char **)&p, 0);
2601 if (cyls < 1 || cyls > 16383)
2606 heads = strtol(p, (char **)&p, 0);
2607 if (heads < 1 || heads > 16)
2612 secs = strtol(p, (char **)&p, 0);
2613 if (secs < 1 || secs > 63)
2617 if (!strcmp(p, "none"))
2618 translation = BIOS_ATA_TRANSLATION_NONE;
2619 else if (!strcmp(p, "lba"))
2620 translation = BIOS_ATA_TRANSLATION_LBA;
2621 else if (!strcmp(p, "auto"))
2622 translation = BIOS_ATA_TRANSLATION_AUTO;
2625 } else if (*p != '\0') {
2627 fprintf(stderr, "qemu: invalid physical CHS format\n");
2630 if (hda_opts != NULL) {
2632 snprintf(num, sizeof(num), "%d", cyls);
2633 qemu_opt_set(hda_opts, "cyls", num);
2634 snprintf(num, sizeof(num), "%d", heads);
2635 qemu_opt_set(hda_opts, "heads", num);
2636 snprintf(num, sizeof(num), "%d", secs);
2637 qemu_opt_set(hda_opts, "secs", num);
2638 if (translation == BIOS_ATA_TRANSLATION_LBA)
2639 qemu_opt_set(hda_opts, "trans", "lba");
2640 if (translation == BIOS_ATA_TRANSLATION_NONE)
2641 qemu_opt_set(hda_opts, "trans", "none");
2645 case QEMU_OPTION_numa:
2646 if (nb_numa_nodes >= MAX_NODES) {
2647 fprintf(stderr, "qemu: too many NUMA nodes\n");
2652 case QEMU_OPTION_nographic:
2653 display_type = DT_NOGRAPHIC;
2655 #ifdef CONFIG_CURSES
2656 case QEMU_OPTION_curses:
2657 display_type = DT_CURSES;
2660 case QEMU_OPTION_portrait:
2663 case QEMU_OPTION_kernel:
2664 kernel_filename = optarg;
2666 case QEMU_OPTION_append:
2667 kernel_cmdline = optarg;
2669 case QEMU_OPTION_cdrom:
2670 drive_add(optarg, CDROM_ALIAS);
2672 case QEMU_OPTION_boot:
2674 static const char * const params[] = {
2675 "order", "once", "menu", NULL
2677 char buf[sizeof(boot_devices)];
2678 char *standard_boot_devices;
2681 if (!strchr(optarg, '=')) {
2683 pstrcpy(buf, sizeof(buf), optarg);
2684 } else if (check_params(buf, sizeof(buf), params, optarg) < 0) {
2686 "qemu: unknown boot parameter '%s' in '%s'\n",
2692 get_param_value(buf, sizeof(buf), "order", optarg)) {
2693 validate_bootdevices(buf);
2694 pstrcpy(boot_devices, sizeof(boot_devices), buf);
2697 if (get_param_value(buf, sizeof(buf),
2699 validate_bootdevices(buf);
2700 standard_boot_devices = qemu_strdup(boot_devices);
2701 pstrcpy(boot_devices, sizeof(boot_devices), buf);
2702 qemu_register_reset(restore_boot_devices,
2703 standard_boot_devices);
2705 if (get_param_value(buf, sizeof(buf),
2707 if (!strcmp(buf, "on")) {
2709 } else if (!strcmp(buf, "off")) {
2713 "qemu: invalid option value '%s'\n",
2721 case QEMU_OPTION_fda:
2722 case QEMU_OPTION_fdb:
2723 drive_add(optarg, FD_ALIAS, popt->index - QEMU_OPTION_fda);
2725 case QEMU_OPTION_no_fd_bootchk:
2728 case QEMU_OPTION_netdev:
2729 if (net_client_parse(&qemu_netdev_opts, optarg) == -1) {
2733 case QEMU_OPTION_net:
2734 if (net_client_parse(&qemu_net_opts, optarg) == -1) {
2739 case QEMU_OPTION_tftp:
2740 legacy_tftp_prefix = optarg;
2742 case QEMU_OPTION_bootp:
2743 legacy_bootp_filename = optarg;
2746 case QEMU_OPTION_smb:
2747 if (net_slirp_smb(optarg) < 0)
2751 case QEMU_OPTION_redir:
2752 if (net_slirp_redir(optarg) < 0)
2756 case QEMU_OPTION_bt:
2757 add_device_config(DEV_BT, optarg);
2759 case QEMU_OPTION_audio_help:
2760 if (!(audio_available())) {
2761 printf("Option %s not supported for this target\n", popt->name);
2767 case QEMU_OPTION_soundhw:
2768 if (!(audio_available())) {
2769 printf("Option %s not supported for this target\n", popt->name);
2772 select_soundhw (optarg);
2777 case QEMU_OPTION_version:
2781 case QEMU_OPTION_m: {
2785 value = strtoul(optarg, &ptr, 10);
2787 case 0: case 'M': case 'm':
2794 fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
2798 /* On 32-bit hosts, QEMU is limited by virtual address space */
2799 if (value > (2047 << 20) && HOST_LONG_BITS == 32) {
2800 fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
2803 if (value != (uint64_t)(ram_addr_t)value) {
2804 fprintf(stderr, "qemu: ram size too large\n");
2810 case QEMU_OPTION_mempath:
2814 case QEMU_OPTION_mem_prealloc:
2819 set_cpu_log(optarg);
2822 gdbstub_dev = "tcp::" DEFAULT_GDBSTUB_PORT;
2824 case QEMU_OPTION_gdb:
2825 gdbstub_dev = optarg;
2830 case QEMU_OPTION_bios:
2833 case QEMU_OPTION_singlestep:
2840 keyboard_layout = optarg;
2842 case QEMU_OPTION_localtime:
2845 case QEMU_OPTION_vga:
2846 select_vgahw (optarg);
2853 w = strtol(p, (char **)&p, 10);
2856 fprintf(stderr, "qemu: invalid resolution or depth\n");
2862 h = strtol(p, (char **)&p, 10);
2867 depth = strtol(p, (char **)&p, 10);
2868 if (depth != 8 && depth != 15 && depth != 16 &&
2869 depth != 24 && depth != 32)
2871 } else if (*p == '\0') {
2872 depth = graphic_depth;
2879 graphic_depth = depth;
2882 case QEMU_OPTION_echr:
2885 term_escape_char = strtol(optarg, &r, 0);
2887 printf("Bad argument to echr\n");
2890 case QEMU_OPTION_monitor:
2891 monitor_parse(optarg, "readline");
2892 default_monitor = 0;
2894 case QEMU_OPTION_qmp:
2895 monitor_parse(optarg, "control");
2896 default_monitor = 0;
2898 case QEMU_OPTION_mon:
2899 opts = qemu_opts_parse(&qemu_mon_opts, optarg, 1);
2903 default_monitor = 0;
2905 case QEMU_OPTION_chardev:
2906 opts = qemu_opts_parse(&qemu_chardev_opts, optarg, 1);
2912 case QEMU_OPTION_fsdev:
2913 opts = qemu_opts_parse(&qemu_fsdev_opts, optarg, 1);
2915 fprintf(stderr, "parse error: %s\n", optarg);
2919 case QEMU_OPTION_virtfs: {
2920 char *arg_fsdev = NULL;
2921 char *arg_9p = NULL;
2924 opts = qemu_opts_parse(&qemu_virtfs_opts, optarg, 1);
2926 fprintf(stderr, "parse error: %s\n", optarg);
2930 len = strlen(",id=,path=");
2931 len += strlen(qemu_opt_get(opts, "fstype"));
2932 len += strlen(qemu_opt_get(opts, "mount_tag"));
2933 len += strlen(qemu_opt_get(opts, "path"));
2934 arg_fsdev = qemu_malloc((len + 1) * sizeof(*arg_fsdev));
2937 fprintf(stderr, "No memory to parse -fsdev for %s\n",
2942 sprintf(arg_fsdev, "%s,id=%s,path=%s",
2943 qemu_opt_get(opts, "fstype"),
2944 qemu_opt_get(opts, "mount_tag"),
2945 qemu_opt_get(opts, "path"));
2947 len = strlen("virtio-9p-pci,fsdev=,mount_tag=");
2948 len += 2*strlen(qemu_opt_get(opts, "mount_tag"));
2949 arg_9p = qemu_malloc((len + 1) * sizeof(*arg_9p));
2952 fprintf(stderr, "No memory to parse -device for %s\n",
2957 sprintf(arg_9p, "virtio-9p-pci,fsdev=%s,mount_tag=%s",
2958 qemu_opt_get(opts, "mount_tag"),
2959 qemu_opt_get(opts, "mount_tag"));
2961 if (!qemu_opts_parse(&qemu_fsdev_opts, arg_fsdev, 1)) {
2962 fprintf(stderr, "parse error [fsdev]: %s\n", optarg);
2966 if (!qemu_opts_parse(&qemu_device_opts, arg_9p, 1)) {
2967 fprintf(stderr, "parse error [device]: %s\n", optarg);
2971 qemu_free(arg_fsdev);
2976 case QEMU_OPTION_serial:
2977 add_device_config(DEV_SERIAL, optarg);
2979 if (strncmp(optarg, "mon:", 4) == 0) {
2980 default_monitor = 0;
2983 case QEMU_OPTION_watchdog:
2986 "qemu: only one watchdog option may be given\n");
2991 case QEMU_OPTION_watchdog_action:
2992 if (select_watchdog_action(optarg) == -1) {
2993 fprintf(stderr, "Unknown -watchdog-action parameter\n");
2997 case QEMU_OPTION_virtiocon:
2998 add_device_config(DEV_VIRTCON, optarg);
2999 default_virtcon = 0;
3000 if (strncmp(optarg, "mon:", 4) == 0) {
3001 default_monitor = 0;
3004 case QEMU_OPTION_parallel:
3005 add_device_config(DEV_PARALLEL, optarg);
3006 default_parallel = 0;
3007 if (strncmp(optarg, "mon:", 4) == 0) {
3008 default_monitor = 0;
3011 case QEMU_OPTION_debugcon:
3012 add_device_config(DEV_DEBUGCON, optarg);
3014 case QEMU_OPTION_loadvm:
3017 case QEMU_OPTION_full_screen:
3021 case QEMU_OPTION_no_frame:
3024 case QEMU_OPTION_alt_grab:
3027 case QEMU_OPTION_ctrl_grab:
3030 case QEMU_OPTION_no_quit:
3033 case QEMU_OPTION_sdl:
3034 display_type = DT_SDL;
3037 case QEMU_OPTION_pidfile:
3040 case QEMU_OPTION_win2k_hack:
3041 win2k_install_hack = 1;
3043 case QEMU_OPTION_rtc_td_hack:
3046 case QEMU_OPTION_acpitable:
3047 do_acpitable_option(optarg);
3049 case QEMU_OPTION_smbios:
3050 do_smbios_option(optarg);
3052 case QEMU_OPTION_enable_kvm:
3055 case QEMU_OPTION_usb:
3058 case QEMU_OPTION_usbdevice:
3060 add_device_config(DEV_USB, optarg);
3062 case QEMU_OPTION_device:
3063 if (!qemu_opts_parse(&qemu_device_opts, optarg, 1)) {
3067 case QEMU_OPTION_smp:
3070 fprintf(stderr, "Invalid number of CPUs\n");
3073 if (max_cpus < smp_cpus) {
3074 fprintf(stderr, "maxcpus must be equal to or greater than "
3078 if (max_cpus > 255) {
3079 fprintf(stderr, "Unsupported number of maxcpus\n");
3083 case QEMU_OPTION_vnc:
3084 display_type = DT_VNC;
3085 vnc_display = optarg;
3087 case QEMU_OPTION_no_acpi:
3090 case QEMU_OPTION_no_hpet:
3093 case QEMU_OPTION_balloon:
3094 if (balloon_parse(optarg) < 0) {
3095 fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
3099 case QEMU_OPTION_no_reboot:
3102 case QEMU_OPTION_no_shutdown:
3105 case QEMU_OPTION_show_cursor:
3108 case QEMU_OPTION_uuid:
3109 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
3110 fprintf(stderr, "Fail to parse UUID string."
3111 " Wrong format.\n");
3116 case QEMU_OPTION_daemonize:
3120 case QEMU_OPTION_option_rom:
3121 if (nb_option_roms >= MAX_OPTION_ROMS) {
3122 fprintf(stderr, "Too many option ROMs\n");
3125 option_rom[nb_option_roms] = optarg;
3128 case QEMU_OPTION_semihosting:
3129 semihosting_enabled = 1;
3131 case QEMU_OPTION_name:
3132 qemu_name = qemu_strdup(optarg);
3134 char *p = strchr(qemu_name, ',');
3137 if (strncmp(p, "process=", 8)) {
3138 fprintf(stderr, "Unknown subargument %s to -name", p);
3146 case QEMU_OPTION_prom_env:
3147 if (nb_prom_envs >= MAX_PROM_ENVS) {
3148 fprintf(stderr, "Too many prom variables\n");
3151 prom_envs[nb_prom_envs] = optarg;
3154 case QEMU_OPTION_old_param:
3157 case QEMU_OPTION_clock:
3158 configure_alarms(optarg);
3160 case QEMU_OPTION_startdate:
3161 configure_rtc_date_offset(optarg, 1);
3163 case QEMU_OPTION_rtc:
3164 opts = qemu_opts_parse(&qemu_rtc_opts, optarg, 0);
3168 configure_rtc(opts);
3170 case QEMU_OPTION_tb_size:
3171 tb_size = strtol(optarg, NULL, 0);
3175 case QEMU_OPTION_icount:
3176 icount_option = optarg;
3178 case QEMU_OPTION_incoming:
3181 case QEMU_OPTION_nodefaults:
3183 default_parallel = 0;
3184 default_virtcon = 0;
3185 default_monitor = 0;
3193 case QEMU_OPTION_chroot:
3194 chroot_dir = optarg;
3196 case QEMU_OPTION_runas:
3200 case QEMU_OPTION_xen_domid:
3201 if (!(xen_available())) {
3202 printf("Option %s not supported for this target\n", popt->name);
3205 xen_domid = atoi(optarg);
3207 case QEMU_OPTION_xen_create:
3208 if (!(xen_available())) {
3209 printf("Option %s not supported for this target\n", popt->name);
3212 xen_mode = XEN_CREATE;
3214 case QEMU_OPTION_xen_attach:
3215 if (!(xen_available())) {
3216 printf("Option %s not supported for this target\n", popt->name);
3219 xen_mode = XEN_ATTACH;
3221 case QEMU_OPTION_readconfig:
3223 int ret = qemu_read_config_file(optarg);
3225 fprintf(stderr, "read config %s: %s\n", optarg,
3231 case QEMU_OPTION_writeconfig:
3234 if (strcmp(optarg, "-") == 0) {
3237 fp = fopen(optarg, "w");
3239 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
3243 qemu_config_write(fp);
3252 /* If no data_dir is specified then try to find it relative to the
3255 data_dir = find_datadir(argv[0]);
3257 /* If all else fails use the install patch specified when building. */
3259 data_dir = CONFIG_QEMU_DATADIR;
3263 * Default to max_cpus = smp_cpus, in case the user doesn't
3264 * specify a max_cpus value.
3267 max_cpus = smp_cpus;
3269 machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
3270 if (smp_cpus > machine->max_cpus) {
3271 fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
3272 "supported by machine `%s' (%d)\n", smp_cpus, machine->name,
3277 qemu_opts_foreach(&qemu_device_opts, default_driver_check, NULL, 0);
3278 qemu_opts_foreach(&qemu_global_opts, default_driver_check, NULL, 0);
3280 if (machine->no_serial) {
3283 if (machine->no_parallel) {
3284 default_parallel = 0;
3286 if (!machine->use_virtcon) {
3287 default_virtcon = 0;
3289 if (machine->no_vga) {
3292 if (machine->no_floppy) {
3295 if (machine->no_cdrom) {
3298 if (machine->no_sdcard) {
3302 if (display_type == DT_NOGRAPHIC) {
3303 if (default_parallel)
3304 add_device_config(DEV_PARALLEL, "null");
3305 if (default_serial && default_monitor) {
3306 add_device_config(DEV_SERIAL, "mon:stdio");
3307 } else if (default_virtcon && default_monitor) {
3308 add_device_config(DEV_VIRTCON, "mon:stdio");
3311 add_device_config(DEV_SERIAL, "stdio");
3312 if (default_virtcon)
3313 add_device_config(DEV_VIRTCON, "stdio");
3314 if (default_monitor)
3315 monitor_parse("stdio", "readline");
3319 add_device_config(DEV_SERIAL, "vc:80Cx24C");
3320 if (default_parallel)
3321 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
3322 if (default_monitor)
3323 monitor_parse("vc:80Cx24C", "readline");
3324 if (default_virtcon)
3325 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
3328 vga_interface_type = VGA_CIRRUS;
3332 if (qemu_opts_foreach(&qemu_chardev_opts, chardev_init_func, NULL, 1) != 0)
3335 if (qemu_opts_foreach(&qemu_fsdev_opts, fsdev_init_func, NULL, 1) != 0) {
3344 if (pipe(fds) == -1)
3355 len = read(fds[0], &status, 1);
3356 if (len == -1 && (errno == EINTR))
3361 else if (status == 1) {
3362 fprintf(stderr, "Could not acquire pidfile: %s\n", strerror(errno));
3370 qemu_set_cloexec(fds[1]);
3382 signal(SIGTSTP, SIG_IGN);
3383 signal(SIGTTOU, SIG_IGN);
3384 signal(SIGTTIN, SIG_IGN);
3388 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
3392 if (write(fds[1], &status, 1) != 1) {
3393 perror("daemonize. Writing to pipe\n");
3397 fprintf(stderr, "Could not acquire pid file: %s\n", strerror(errno));
3402 int ret = kvm_init(smp_cpus);
3404 if (!kvm_available()) {
3405 printf("KVM not supported for this target\n");
3407 fprintf(stderr, "failed to initialize KVM: %s\n", strerror(-ret));
3413 if (qemu_init_main_loop()) {
3414 fprintf(stderr, "qemu_init_main_loop failed\n");
3417 linux_boot = (kernel_filename != NULL);
3419 if (!linux_boot && *kernel_cmdline != '\0') {
3420 fprintf(stderr, "-append only allowed with -kernel option\n");
3424 if (!linux_boot && initrd_filename != NULL) {
3425 fprintf(stderr, "-initrd only allowed with -kernel option\n");
3430 /* Win32 doesn't support line-buffering and requires size >= 2 */
3431 setvbuf(stdout, NULL, _IOLBF, 0);
3434 if (init_timer_alarm() < 0) {
3435 fprintf(stderr, "could not initialize alarm timer\n");
3438 configure_icount(icount_option);
3440 if (net_init_clients() < 0) {
3444 /* init the bluetooth world */
3445 if (foreach_device_config(DEV_BT, bt_parse))
3448 /* init the memory */
3450 ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
3452 /* init the dynamic translator */
3453 cpu_exec_init_all(tb_size * 1024 * 1024);
3455 bdrv_init_with_whitelist();
3459 if (default_cdrom) {
3460 /* we always create the cdrom drive, even if no disk is there */
3461 drive_add(NULL, CDROM_ALIAS);
3464 if (default_floppy) {
3465 /* we always create at least one floppy */
3466 drive_add(NULL, FD_ALIAS, 0);
3469 if (default_sdcard) {
3470 /* we always create one sd slot, even if no card is in it */
3471 drive_add(NULL, SD_ALIAS);
3474 /* open the virtual block devices */
3476 qemu_opts_foreach(&qemu_drive_opts, drive_enable_snapshot, NULL, 0);
3477 if (qemu_opts_foreach(&qemu_drive_opts, drive_init_func, machine, 1) != 0)
3480 register_savevm_live("ram", 0, 3, NULL, ram_save_live, NULL,
3483 if (nb_numa_nodes > 0) {
3486 if (nb_numa_nodes > smp_cpus) {
3487 nb_numa_nodes = smp_cpus;
3490 /* If no memory size if given for any node, assume the default case
3491 * and distribute the available memory equally across all nodes
3493 for (i = 0; i < nb_numa_nodes; i++) {
3494 if (node_mem[i] != 0)
3497 if (i == nb_numa_nodes) {
3498 uint64_t usedmem = 0;
3500 /* On Linux, the each node's border has to be 8MB aligned,
3501 * the final node gets the rest.
3503 for (i = 0; i < nb_numa_nodes - 1; i++) {
3504 node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1);
3505 usedmem += node_mem[i];
3507 node_mem[i] = ram_size - usedmem;
3510 for (i = 0; i < nb_numa_nodes; i++) {
3511 if (node_cpumask[i] != 0)
3514 /* assigning the VCPUs round-robin is easier to implement, guest OSes
3515 * must cope with this anyway, because there are BIOSes out there in
3516 * real machines which also use this scheme.
3518 if (i == nb_numa_nodes) {
3519 for (i = 0; i < smp_cpus; i++) {
3520 node_cpumask[i % nb_numa_nodes] |= 1 << i;
3525 if (qemu_opts_foreach(&qemu_mon_opts, mon_init_func, NULL, 1) != 0) {
3529 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
3531 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
3533 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
3535 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
3538 module_call_init(MODULE_INIT_DEVICE);
3540 if (qemu_opts_foreach(&qemu_device_opts, device_help_func, NULL, 0) != 0)
3544 i = select_watchdog(watchdog);
3546 exit (i == 1 ? 1 : 0);
3549 if (machine->compat_props) {
3550 qdev_prop_register_global_list(machine->compat_props);
3554 machine->init(ram_size, boot_devices,
3555 kernel_filename, kernel_cmdline, initrd_filename, cpu_model);
3557 cpu_synchronize_all_post_init();
3560 /* must be after terminal init, SDL library changes signal handlers */
3566 current_machine = machine;
3568 /* init USB devices */
3570 if (foreach_device_config(DEV_USB, usb_parse) < 0)
3574 /* init generic devices */
3575 if (qemu_opts_foreach(&qemu_device_opts, device_init_func, NULL, 1) != 0)
3578 net_check_clients();
3580 /* just use the first displaystate for the moment */
3581 ds = get_displaystate();
3583 if (display_type == DT_DEFAULT) {
3584 #if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
3585 display_type = DT_SDL;
3587 display_type = DT_VNC;
3588 vnc_display = "localhost:0,to=99";
3594 switch (display_type) {
3597 #if defined(CONFIG_CURSES)
3599 curses_display_init(ds, full_screen);
3602 #if defined(CONFIG_SDL)
3604 sdl_display_init(ds, full_screen, no_frame);
3606 #elif defined(CONFIG_COCOA)
3608 cocoa_display_init(ds, full_screen);
3612 vnc_display_init(ds);
3613 if (vnc_display_open(ds, vnc_display) < 0)
3616 if (show_vnc_port) {
3617 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
3625 dcl = ds->listeners;
3626 while (dcl != NULL) {
3627 if (dcl->dpy_refresh != NULL) {
3628 ds->gui_timer = qemu_new_timer(rt_clock, gui_update, ds);
3629 qemu_mod_timer(ds->gui_timer, qemu_get_clock(rt_clock));
3635 if (display_type == DT_NOGRAPHIC || display_type == DT_VNC) {
3636 nographic_timer = qemu_new_timer(rt_clock, nographic_update, NULL);
3637 qemu_mod_timer(nographic_timer, qemu_get_clock(rt_clock));
3640 text_consoles_set_display(ds);
3642 if (gdbstub_dev && gdbserver_start(gdbstub_dev) < 0) {
3643 fprintf(stderr, "qemu: could not open gdbserver on device '%s'\n",
3648 qdev_machine_creation_done();
3650 if (rom_load_all() != 0) {
3651 fprintf(stderr, "rom loading failed\n");
3655 qemu_system_reset();
3657 if (load_vmstate(loadvm) < 0) {
3663 qemu_start_incoming_migration(incoming);
3664 } else if (autostart) {
3674 len = write(fds[1], &status, 1);
3675 if (len == -1 && (errno == EINTR))
3682 perror("not able to chdir to /");
3685 TFR(fd = qemu_open("/dev/null", O_RDWR));
3691 pwd = getpwnam(run_as);
3693 fprintf(stderr, "User \"%s\" doesn't exist\n", run_as);
3699 if (chroot(chroot_dir) < 0) {
3700 fprintf(stderr, "chroot failed\n");
3704 perror("not able to chdir to /");
3710 if (setgid(pwd->pw_gid) < 0) {
3711 fprintf(stderr, "Failed to setgid(%d)\n", pwd->pw_gid);
3714 if (setuid(pwd->pw_uid) < 0) {
3715 fprintf(stderr, "Failed to setuid(%d)\n", pwd->pw_uid);
3718 if (setuid(0) != -1) {
3719 fprintf(stderr, "Dropping privileges failed\n");