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.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>
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);
89 #if defined(__OpenBSD__)
93 #if defined(CONFIG_VDE)
94 #include <libvdeplug.h>
102 #if defined(__APPLE__) || defined(main)
104 int qemu_main(int argc, char **argv, char **envp);
105 int main(int argc, char **argv)
107 return qemu_main(argc, argv, NULL);
110 #define main qemu_main
112 #endif /* CONFIG_SDL */
116 #define main qemu_main
117 #endif /* CONFIG_COCOA */
120 #include "hw/boards.h"
122 #include "hw/pcmcia.h"
127 #include "hw/watchdog.h"
128 #include "hw/smbios.h"
131 #include "hw/loader.h"
134 #include "net/slirp.h"
139 #include "qemu-timer.h"
140 #include "qemu-char.h"
141 #include "cache-utils.h"
143 #include "block_int.h"
144 #include "block-migration.h"
146 #include "audio/audio.h"
147 #include "migration.h"
149 #include "qemu-option.h"
150 #include "qemu-config.h"
151 #include "qemu-objects.h"
155 #include "qemu_socket.h"
157 #include "slirp/libslirp.h"
159 #include "qemu-queue.h"
161 #include "arch_init.h"
164 //#define DEBUG_SLIRP
166 #define DEFAULT_RAM_SIZE 128
168 #define MAX_VIRTIO_CONSOLES 1
170 static const char *data_dir;
171 const char *bios_name = NULL;
172 /* Note: drives_table[MAX_DRIVES] is a dummy block driver if none available
173 to store the VM snapshots */
174 struct drivelist drives = QTAILQ_HEAD_INITIALIZER(drives);
175 struct driveoptlist driveopts = QTAILQ_HEAD_INITIALIZER(driveopts);
176 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
177 DisplayType display_type = DT_DEFAULT;
178 const char* keyboard_layout = NULL;
180 const char *mem_path = NULL;
182 int mem_prealloc = 0; /* force preallocation of physical target memory */
185 NICInfo nd_table[MAX_NICS];
188 static int rtc_utc = 1;
189 static int rtc_date_offset = -1; /* -1 means no change */
190 QEMUClock *rtc_clock;
191 int vga_interface_type = VGA_NONE;
192 static int full_screen = 0;
194 static int no_frame = 0;
197 CharDriverState *serial_hds[MAX_SERIAL_PORTS];
198 CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
199 CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES];
200 int win2k_install_hack = 0;
208 const char *vnc_display;
209 int acpi_enabled = 1;
215 int graphic_rotate = 0;
216 uint8_t irq0override = 1;
220 const char *watchdog;
221 const char *option_rom[MAX_OPTION_ROMS];
223 int semihosting_enabled = 0;
225 const char *qemu_name;
228 unsigned int nb_prom_envs = 0;
229 const char *prom_envs[MAX_PROM_ENVS];
233 uint64_t node_mem[MAX_NODES];
234 uint64_t node_cpumask[MAX_NODES];
236 static QEMUTimer *nographic_timer;
238 uint8_t qemu_uuid[16];
240 static QEMUBootSetHandler *boot_set_handler;
241 static void *boot_set_opaque;
245 enum xen_mode xen_mode = XEN_EMULATE;
247 static int default_serial = 1;
248 static int default_parallel = 1;
249 static int default_virtcon = 1;
250 static int default_monitor = 1;
251 static int default_vga = 1;
252 static int default_floppy = 1;
253 static int default_cdrom = 1;
254 static int default_sdcard = 1;
260 { .driver = "isa-serial", .flag = &default_serial },
261 { .driver = "isa-parallel", .flag = &default_parallel },
262 { .driver = "isa-fdc", .flag = &default_floppy },
263 { .driver = "ide-drive", .flag = &default_cdrom },
264 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
265 { .driver = "virtio-serial-s390", .flag = &default_virtcon },
266 { .driver = "virtio-serial", .flag = &default_virtcon },
267 { .driver = "VGA", .flag = &default_vga },
268 { .driver = "cirrus-vga", .flag = &default_vga },
269 { .driver = "vmware-svga", .flag = &default_vga },
272 static int default_driver_check(QemuOpts *opts, void *opaque)
274 const char *driver = qemu_opt_get(opts, "driver");
279 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
280 if (strcmp(default_list[i].driver, driver) != 0)
282 *(default_list[i].flag) = 0;
287 /***********************************************************/
289 static void set_proc_name(const char *s)
291 #if defined(__linux__) && defined(PR_SET_NAME)
295 name[sizeof(name) - 1] = 0;
296 strncpy(name, s, sizeof(name));
297 /* Could rewrite argv[0] too, but that's a bit more complicated.
298 This simple way is enough for `top'. */
299 prctl(PR_SET_NAME, name);
303 /***********************************************************/
304 /* real time host monotonic timer */
306 /* compute with 96 bit intermediate result: (a*b)/c */
307 uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
312 #ifdef HOST_WORDS_BIGENDIAN
322 rl = (uint64_t)u.l.low * (uint64_t)b;
323 rh = (uint64_t)u.l.high * (uint64_t)b;
326 res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
330 /***********************************************************/
331 /* host time/date access */
332 void qemu_get_timedate(struct tm *tm, int offset)
339 if (rtc_date_offset == -1) {
343 ret = localtime(&ti);
345 ti -= rtc_date_offset;
349 memcpy(tm, ret, sizeof(struct tm));
352 int qemu_timedate_diff(struct tm *tm)
356 if (rtc_date_offset == -1)
358 seconds = mktimegm(tm);
360 seconds = mktime(tm);
362 seconds = mktimegm(tm) + rtc_date_offset;
364 return seconds - time(NULL);
367 void rtc_change_mon_event(struct tm *tm)
371 data = qobject_from_jsonf("{ 'offset': %d }", qemu_timedate_diff(tm));
372 monitor_protocol_event(QEVENT_RTC_CHANGE, data);
373 qobject_decref(data);
376 static void configure_rtc_date_offset(const char *startdate, int legacy)
378 time_t rtc_start_date;
381 if (!strcmp(startdate, "now") && legacy) {
382 rtc_date_offset = -1;
384 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
392 } else if (sscanf(startdate, "%d-%d-%d",
404 rtc_start_date = mktimegm(&tm);
405 if (rtc_start_date == -1) {
407 fprintf(stderr, "Invalid date format. Valid formats are:\n"
408 "'2006-06-17T16:01:21' or '2006-06-17'\n");
411 rtc_date_offset = time(NULL) - rtc_start_date;
415 static void configure_rtc(QemuOpts *opts)
419 value = qemu_opt_get(opts, "base");
421 if (!strcmp(value, "utc")) {
423 } else if (!strcmp(value, "localtime")) {
426 configure_rtc_date_offset(value, 0);
429 value = qemu_opt_get(opts, "clock");
431 if (!strcmp(value, "host")) {
432 rtc_clock = host_clock;
433 } else if (!strcmp(value, "vm")) {
434 rtc_clock = vm_clock;
436 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
440 value = qemu_opt_get(opts, "driftfix");
442 if (!strcmp(value, "slew")) {
444 } else if (!strcmp(value, "none")) {
447 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
453 /***********************************************************/
454 /* Bluetooth support */
457 static struct HCIInfo *hci_table[MAX_NICS];
459 static struct bt_vlan_s {
460 struct bt_scatternet_s net;
462 struct bt_vlan_s *next;
465 /* find or alloc a new bluetooth "VLAN" */
466 static struct bt_scatternet_s *qemu_find_bt_vlan(int id)
468 struct bt_vlan_s **pvlan, *vlan;
469 for (vlan = first_bt_vlan; vlan != NULL; vlan = vlan->next) {
473 vlan = qemu_mallocz(sizeof(struct bt_vlan_s));
475 pvlan = &first_bt_vlan;
476 while (*pvlan != NULL)
477 pvlan = &(*pvlan)->next;
482 static void null_hci_send(struct HCIInfo *hci, const uint8_t *data, int len)
486 static int null_hci_addr_set(struct HCIInfo *hci, const uint8_t *bd_addr)
491 static struct HCIInfo null_hci = {
492 .cmd_send = null_hci_send,
493 .sco_send = null_hci_send,
494 .acl_send = null_hci_send,
495 .bdaddr_set = null_hci_addr_set,
498 struct HCIInfo *qemu_next_hci(void)
500 if (cur_hci == nb_hcis)
503 return hci_table[cur_hci++];
506 static struct HCIInfo *hci_init(const char *str)
509 struct bt_scatternet_s *vlan = 0;
511 if (!strcmp(str, "null"))
514 else if (!strncmp(str, "host", 4) && (str[4] == '\0' || str[4] == ':'))
516 return bt_host_hci(str[4] ? str + 5 : "hci0");
517 else if (!strncmp(str, "hci", 3)) {
520 if (!strncmp(str + 3, ",vlan=", 6)) {
521 vlan = qemu_find_bt_vlan(strtol(str + 9, &endp, 0));
526 vlan = qemu_find_bt_vlan(0);
528 return bt_new_hci(vlan);
531 fprintf(stderr, "qemu: Unknown bluetooth HCI `%s'.\n", str);
536 static int bt_hci_parse(const char *str)
541 if (nb_hcis >= MAX_NICS) {
542 fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
555 bdaddr.b[5] = 0x56 + nb_hcis;
556 hci->bdaddr_set(hci, bdaddr.b);
558 hci_table[nb_hcis++] = hci;
563 static void bt_vhci_add(int vlan_id)
565 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
568 fprintf(stderr, "qemu: warning: adding a VHCI to "
569 "an empty scatternet %i\n", vlan_id);
571 bt_vhci_init(bt_new_hci(vlan));
574 static struct bt_device_s *bt_device_add(const char *opt)
576 struct bt_scatternet_s *vlan;
578 char *endp = strstr(opt, ",vlan=");
579 int len = (endp ? endp - opt : strlen(opt)) + 1;
582 pstrcpy(devname, MIN(sizeof(devname), len), opt);
585 vlan_id = strtol(endp + 6, &endp, 0);
587 fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
592 vlan = qemu_find_bt_vlan(vlan_id);
595 fprintf(stderr, "qemu: warning: adding a slave device to "
596 "an empty scatternet %i\n", vlan_id);
598 if (!strcmp(devname, "keyboard"))
599 return bt_keyboard_init(vlan);
601 fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
605 static int bt_parse(const char *opt)
607 const char *endp, *p;
610 if (strstart(opt, "hci", &endp)) {
611 if (!*endp || *endp == ',') {
613 if (!strstart(endp, ",vlan=", 0))
616 return bt_hci_parse(opt);
618 } else if (strstart(opt, "vhci", &endp)) {
619 if (!*endp || *endp == ',') {
621 if (strstart(endp, ",vlan=", &p)) {
622 vlan = strtol(p, (char **) &endp, 0);
624 fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
628 fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1);
637 } else if (strstart(opt, "device:", &endp))
638 return !bt_device_add(endp);
640 fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
644 /***********************************************************/
645 /* QEMU Block devices */
647 #define HD_ALIAS "index=%d,media=disk"
648 #define CDROM_ALIAS "index=2,media=cdrom"
649 #define FD_ALIAS "index=%d,if=floppy"
650 #define PFLASH_ALIAS "if=pflash"
651 #define MTD_ALIAS "if=mtd"
652 #define SD_ALIAS "index=0,if=sd"
654 QemuOpts *drive_add(const char *file, const char *fmt, ...)
661 vsnprintf(optstr, sizeof(optstr), fmt, ap);
664 opts = qemu_opts_parse(&qemu_drive_opts, optstr, 0);
669 qemu_opt_set(opts, "file", file);
673 DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit)
677 /* seek interface, bus and unit */
679 QTAILQ_FOREACH(dinfo, &drives, next) {
680 if (dinfo->type == type &&
689 DriveInfo *drive_get_by_id(const char *id)
693 QTAILQ_FOREACH(dinfo, &drives, next) {
694 if (strcmp(id, dinfo->id))
701 int drive_get_max_bus(BlockInterfaceType type)
707 QTAILQ_FOREACH(dinfo, &drives, next) {
708 if(dinfo->type == type &&
709 dinfo->bus > max_bus)
710 max_bus = dinfo->bus;
715 const char *drive_get_serial(BlockDriverState *bdrv)
719 QTAILQ_FOREACH(dinfo, &drives, next) {
720 if (dinfo->bdrv == bdrv)
721 return dinfo->serial;
727 BlockInterfaceErrorAction drive_get_on_error(
728 BlockDriverState *bdrv, int is_read)
732 QTAILQ_FOREACH(dinfo, &drives, next) {
733 if (dinfo->bdrv == bdrv)
734 return is_read ? dinfo->on_read_error : dinfo->on_write_error;
737 return is_read ? BLOCK_ERR_REPORT : BLOCK_ERR_STOP_ENOSPC;
740 static void bdrv_format_print(void *opaque, const char *name)
742 fprintf(stderr, " %s", name);
745 void drive_uninit(DriveInfo *dinfo)
747 qemu_opts_del(dinfo->opts);
748 bdrv_delete(dinfo->bdrv);
749 QTAILQ_REMOVE(&drives, dinfo, next);
753 static int parse_block_error_action(const char *buf, int is_read)
755 if (!strcmp(buf, "ignore")) {
756 return BLOCK_ERR_IGNORE;
757 } else if (!is_read && !strcmp(buf, "enospc")) {
758 return BLOCK_ERR_STOP_ENOSPC;
759 } else if (!strcmp(buf, "stop")) {
760 return BLOCK_ERR_STOP_ANY;
761 } else if (!strcmp(buf, "report")) {
762 return BLOCK_ERR_REPORT;
764 fprintf(stderr, "qemu: '%s' invalid %s error action\n",
765 buf, is_read ? "read" : "write");
770 DriveInfo *drive_init(QemuOpts *opts, void *opaque,
774 const char *file = NULL;
777 const char *mediastr = "";
778 BlockInterfaceType type;
779 enum { MEDIA_DISK, MEDIA_CDROM } media;
781 int cyls, heads, secs, translation;
782 BlockDriver *drv = NULL;
783 QEMUMachine *machine = opaque;
788 int on_read_error, on_write_error;
795 translation = BIOS_ATA_TRANSLATION_AUTO;
797 if (machine && machine->use_scsi) {
799 max_devs = MAX_SCSI_DEVS;
800 pstrcpy(devname, sizeof(devname), "scsi");
803 max_devs = MAX_IDE_DEVS;
804 pstrcpy(devname, sizeof(devname), "ide");
808 /* extract parameters */
809 bus_id = qemu_opt_get_number(opts, "bus", 0);
810 unit_id = qemu_opt_get_number(opts, "unit", -1);
811 index = qemu_opt_get_number(opts, "index", -1);
813 cyls = qemu_opt_get_number(opts, "cyls", 0);
814 heads = qemu_opt_get_number(opts, "heads", 0);
815 secs = qemu_opt_get_number(opts, "secs", 0);
817 snapshot = qemu_opt_get_bool(opts, "snapshot", 0);
818 ro = qemu_opt_get_bool(opts, "readonly", 0);
820 file = qemu_opt_get(opts, "file");
821 serial = qemu_opt_get(opts, "serial");
823 if ((buf = qemu_opt_get(opts, "if")) != NULL) {
824 pstrcpy(devname, sizeof(devname), buf);
825 if (!strcmp(buf, "ide")) {
827 max_devs = MAX_IDE_DEVS;
828 } else if (!strcmp(buf, "scsi")) {
830 max_devs = MAX_SCSI_DEVS;
831 } else if (!strcmp(buf, "floppy")) {
834 } else if (!strcmp(buf, "pflash")) {
837 } else if (!strcmp(buf, "mtd")) {
840 } else if (!strcmp(buf, "sd")) {
843 } else if (!strcmp(buf, "virtio")) {
846 } else if (!strcmp(buf, "xen")) {
849 } else if (!strcmp(buf, "none")) {
853 fprintf(stderr, "qemu: unsupported bus type '%s'\n", buf);
858 if (cyls || heads || secs) {
859 if (cyls < 1 || (type == IF_IDE && cyls > 16383)) {
860 fprintf(stderr, "qemu: '%s' invalid physical cyls number\n", buf);
863 if (heads < 1 || (type == IF_IDE && heads > 16)) {
864 fprintf(stderr, "qemu: '%s' invalid physical heads number\n", buf);
867 if (secs < 1 || (type == IF_IDE && secs > 63)) {
868 fprintf(stderr, "qemu: '%s' invalid physical secs number\n", buf);
873 if ((buf = qemu_opt_get(opts, "trans")) != NULL) {
876 "qemu: '%s' trans must be used with cyls,heads and secs\n",
880 if (!strcmp(buf, "none"))
881 translation = BIOS_ATA_TRANSLATION_NONE;
882 else if (!strcmp(buf, "lba"))
883 translation = BIOS_ATA_TRANSLATION_LBA;
884 else if (!strcmp(buf, "auto"))
885 translation = BIOS_ATA_TRANSLATION_AUTO;
887 fprintf(stderr, "qemu: '%s' invalid translation type\n", buf);
892 if ((buf = qemu_opt_get(opts, "media")) != NULL) {
893 if (!strcmp(buf, "disk")) {
895 } else if (!strcmp(buf, "cdrom")) {
896 if (cyls || secs || heads) {
898 "qemu: '%s' invalid physical CHS format\n", buf);
903 fprintf(stderr, "qemu: '%s' invalid media\n", buf);
908 if ((buf = qemu_opt_get(opts, "cache")) != NULL) {
909 if (!strcmp(buf, "off") || !strcmp(buf, "none")) {
910 bdrv_flags |= BDRV_O_NOCACHE;
911 } else if (!strcmp(buf, "writeback")) {
912 bdrv_flags |= BDRV_O_CACHE_WB;
913 } else if (!strcmp(buf, "writethrough")) {
914 /* this is the default */
916 fprintf(stderr, "qemu: invalid cache option\n");
921 #ifdef CONFIG_LINUX_AIO
922 if ((buf = qemu_opt_get(opts, "aio")) != NULL) {
923 if (!strcmp(buf, "native")) {
924 bdrv_flags |= BDRV_O_NATIVE_AIO;
925 } else if (!strcmp(buf, "threads")) {
926 /* this is the default */
928 fprintf(stderr, "qemu: invalid aio option\n");
934 if ((buf = qemu_opt_get(opts, "format")) != NULL) {
935 if (strcmp(buf, "?") == 0) {
936 fprintf(stderr, "qemu: Supported formats:");
937 bdrv_iterate_format(bdrv_format_print, NULL);
938 fprintf(stderr, "\n");
941 drv = bdrv_find_whitelisted_format(buf);
943 fprintf(stderr, "qemu: '%s' invalid format\n", buf);
948 on_write_error = BLOCK_ERR_STOP_ENOSPC;
949 if ((buf = qemu_opt_get(opts, "werror")) != NULL) {
950 if (type != IF_IDE && type != IF_SCSI && type != IF_VIRTIO) {
951 fprintf(stderr, "werror is no supported by this format\n");
955 on_write_error = parse_block_error_action(buf, 0);
956 if (on_write_error < 0) {
961 on_read_error = BLOCK_ERR_REPORT;
962 if ((buf = qemu_opt_get(opts, "rerror")) != NULL) {
963 if (type != IF_IDE && type != IF_VIRTIO) {
964 fprintf(stderr, "rerror is no supported by this format\n");
968 on_read_error = parse_block_error_action(buf, 1);
969 if (on_read_error < 0) {
974 if ((devaddr = qemu_opt_get(opts, "addr")) != NULL) {
975 if (type != IF_VIRTIO) {
976 fprintf(stderr, "addr is not supported\n");
981 /* compute bus and unit according index */
984 if (bus_id != 0 || unit_id != -1) {
986 "qemu: index cannot be used with bus and unit\n");
994 unit_id = index % max_devs;
995 bus_id = index / max_devs;
999 /* if user doesn't specify a unit_id,
1000 * try to find the first free
1003 if (unit_id == -1) {
1005 while (drive_get(type, bus_id, unit_id) != NULL) {
1007 if (max_devs && unit_id >= max_devs) {
1008 unit_id -= max_devs;
1016 if (max_devs && unit_id >= max_devs) {
1017 fprintf(stderr, "qemu: unit %d too big (max is %d)\n",
1018 unit_id, max_devs - 1);
1023 * ignore multiple definitions
1026 if (drive_get(type, bus_id, unit_id) != NULL) {
1033 dinfo = qemu_mallocz(sizeof(*dinfo));
1034 if ((buf = qemu_opts_id(opts)) != NULL) {
1035 dinfo->id = qemu_strdup(buf);
1037 /* no id supplied -> create one */
1038 dinfo->id = qemu_mallocz(32);
1039 if (type == IF_IDE || type == IF_SCSI)
1040 mediastr = (media == MEDIA_CDROM) ? "-cd" : "-hd";
1042 snprintf(dinfo->id, 32, "%s%i%s%i",
1043 devname, bus_id, mediastr, unit_id);
1045 snprintf(dinfo->id, 32, "%s%s%i",
1046 devname, mediastr, unit_id);
1048 dinfo->bdrv = bdrv_new(dinfo->id);
1049 dinfo->devaddr = devaddr;
1051 dinfo->bus = bus_id;
1052 dinfo->unit = unit_id;
1053 dinfo->on_read_error = on_read_error;
1054 dinfo->on_write_error = on_write_error;
1057 strncpy(dinfo->serial, serial, sizeof(serial));
1058 QTAILQ_INSERT_TAIL(&drives, dinfo, next);
1068 bdrv_set_geometry_hint(dinfo->bdrv, cyls, heads, secs);
1069 bdrv_set_translation_hint(dinfo->bdrv, translation);
1073 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_CDROM);
1078 /* FIXME: This isn't really a floppy, but it's a reasonable
1081 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_FLOPPY);
1087 /* add virtio block device */
1088 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
1089 qemu_opt_set(opts, "driver", "virtio-blk-pci");
1090 qemu_opt_set(opts, "drive", dinfo->id);
1092 qemu_opt_set(opts, "addr", devaddr);
1102 /* always use write-back with snapshot */
1103 bdrv_flags &= ~BDRV_O_CACHE_MASK;
1104 bdrv_flags |= (BDRV_O_SNAPSHOT|BDRV_O_CACHE_WB);
1107 if (media == MEDIA_CDROM) {
1108 /* CDROM is fine for any interface, don't check. */
1110 } else if (ro == 1) {
1111 if (type != IF_SCSI && type != IF_VIRTIO && type != IF_FLOPPY) {
1112 fprintf(stderr, "qemu: readonly flag not supported for drive with this interface\n");
1117 bdrv_flags |= ro ? 0 : BDRV_O_RDWR;
1119 if (bdrv_open(dinfo->bdrv, file, bdrv_flags, drv) < 0) {
1120 fprintf(stderr, "qemu: could not open disk image %s: %s\n",
1121 file, strerror(errno));
1125 if (bdrv_key_required(dinfo->bdrv))
1131 static int drive_init_func(QemuOpts *opts, void *opaque)
1133 QEMUMachine *machine = opaque;
1134 int fatal_error = 0;
1136 if (drive_init(opts, machine, &fatal_error) == NULL) {
1143 static int drive_enable_snapshot(QemuOpts *opts, void *opaque)
1145 if (NULL == qemu_opt_get(opts, "snapshot")) {
1146 qemu_opt_set(opts, "snapshot", "on");
1151 void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
1153 boot_set_handler = func;
1154 boot_set_opaque = opaque;
1157 int qemu_boot_set(const char *boot_devices)
1159 if (!boot_set_handler) {
1162 return boot_set_handler(boot_set_opaque, boot_devices);
1165 static void validate_bootdevices(char *devices)
1167 /* We just do some generic consistency checks */
1171 for (p = devices; *p != '\0'; p++) {
1172 /* Allowed boot devices are:
1173 * a-b: floppy disk drives
1174 * c-f: IDE disk drives
1175 * g-m: machine implementation dependant drives
1176 * n-p: network devices
1177 * It's up to each machine implementation to check if the given boot
1178 * devices match the actual hardware implementation and firmware
1181 if (*p < 'a' || *p > 'p') {
1182 fprintf(stderr, "Invalid boot device '%c'\n", *p);
1185 if (bitmap & (1 << (*p - 'a'))) {
1186 fprintf(stderr, "Boot device '%c' was given twice\n", *p);
1189 bitmap |= 1 << (*p - 'a');
1193 static void restore_boot_devices(void *opaque)
1195 char *standard_boot_devices = opaque;
1197 qemu_boot_set(standard_boot_devices);
1199 qemu_unregister_reset(restore_boot_devices, standard_boot_devices);
1200 qemu_free(standard_boot_devices);
1203 static void numa_add(const char *optarg)
1207 unsigned long long value, endvalue;
1210 optarg = get_opt_name(option, 128, optarg, ',') + 1;
1211 if (!strcmp(option, "node")) {
1212 if (get_param_value(option, 128, "nodeid", optarg) == 0) {
1213 nodenr = nb_numa_nodes;
1215 nodenr = strtoull(option, NULL, 10);
1218 if (get_param_value(option, 128, "mem", optarg) == 0) {
1219 node_mem[nodenr] = 0;
1221 value = strtoull(option, &endptr, 0);
1223 case 0: case 'M': case 'm':
1230 node_mem[nodenr] = value;
1232 if (get_param_value(option, 128, "cpus", optarg) == 0) {
1233 node_cpumask[nodenr] = 0;
1235 value = strtoull(option, &endptr, 10);
1238 fprintf(stderr, "only 64 CPUs in NUMA mode supported.\n");
1240 if (*endptr == '-') {
1241 endvalue = strtoull(endptr+1, &endptr, 10);
1242 if (endvalue >= 63) {
1245 "only 63 CPUs in NUMA mode supported.\n");
1247 value = (2ULL << endvalue) - (1ULL << value);
1249 value = 1ULL << value;
1252 node_cpumask[nodenr] = value;
1259 static void smp_parse(const char *optarg)
1261 int smp, sockets = 0, threads = 0, cores = 0;
1265 smp = strtoul(optarg, &endptr, 10);
1266 if (endptr != optarg) {
1267 if (*endptr == ',') {
1271 if (get_param_value(option, 128, "sockets", endptr) != 0)
1272 sockets = strtoull(option, NULL, 10);
1273 if (get_param_value(option, 128, "cores", endptr) != 0)
1274 cores = strtoull(option, NULL, 10);
1275 if (get_param_value(option, 128, "threads", endptr) != 0)
1276 threads = strtoull(option, NULL, 10);
1277 if (get_param_value(option, 128, "maxcpus", endptr) != 0)
1278 max_cpus = strtoull(option, NULL, 10);
1280 /* compute missing values, prefer sockets over cores over threads */
1281 if (smp == 0 || sockets == 0) {
1282 sockets = sockets > 0 ? sockets : 1;
1283 cores = cores > 0 ? cores : 1;
1284 threads = threads > 0 ? threads : 1;
1286 smp = cores * threads * sockets;
1290 threads = threads > 0 ? threads : 1;
1291 cores = smp / (sockets * threads);
1294 threads = smp / (cores * sockets);
1299 smp_cores = cores > 0 ? cores : 1;
1300 smp_threads = threads > 0 ? threads : 1;
1302 max_cpus = smp_cpus;
1305 /***********************************************************/
1308 static int usb_device_add(const char *devname, int is_hotplug)
1311 USBDevice *dev = NULL;
1316 /* drivers with .usbdevice_name entry in USBDeviceInfo */
1317 dev = usbdevice_create(devname);
1321 /* the other ones */
1322 if (strstart(devname, "host:", &p)) {
1323 dev = usb_host_device_open(p);
1324 } else if (!strcmp(devname, "bt") || strstart(devname, "bt:", &p)) {
1325 dev = usb_bt_init(devname[2] ? hci_init(p) :
1326 bt_new_hci(qemu_find_bt_vlan(0)));
1337 static int usb_device_del(const char *devname)
1342 if (strstart(devname, "host:", &p))
1343 return usb_host_device_close(p);
1348 p = strchr(devname, '.');
1351 bus_num = strtoul(devname, NULL, 0);
1352 addr = strtoul(p + 1, NULL, 0);
1354 return usb_device_delete_addr(bus_num, addr);
1357 static int usb_parse(const char *cmdline)
1360 r = usb_device_add(cmdline, 0);
1362 fprintf(stderr, "qemu: could not add USB device '%s'\n", cmdline);
1367 void do_usb_add(Monitor *mon, const QDict *qdict)
1369 const char *devname = qdict_get_str(qdict, "devname");
1370 if (usb_device_add(devname, 1) < 0) {
1371 error_report("could not add USB device '%s'", devname);
1375 void do_usb_del(Monitor *mon, const QDict *qdict)
1377 const char *devname = qdict_get_str(qdict, "devname");
1378 if (usb_device_del(devname) < 0) {
1379 error_report("could not delete USB device '%s'", devname);
1383 /***********************************************************/
1384 /* PCMCIA/Cardbus */
1386 static struct pcmcia_socket_entry_s {
1387 PCMCIASocket *socket;
1388 struct pcmcia_socket_entry_s *next;
1389 } *pcmcia_sockets = 0;
1391 void pcmcia_socket_register(PCMCIASocket *socket)
1393 struct pcmcia_socket_entry_s *entry;
1395 entry = qemu_malloc(sizeof(struct pcmcia_socket_entry_s));
1396 entry->socket = socket;
1397 entry->next = pcmcia_sockets;
1398 pcmcia_sockets = entry;
1401 void pcmcia_socket_unregister(PCMCIASocket *socket)
1403 struct pcmcia_socket_entry_s *entry, **ptr;
1405 ptr = &pcmcia_sockets;
1406 for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
1407 if (entry->socket == socket) {
1413 void pcmcia_info(Monitor *mon)
1415 struct pcmcia_socket_entry_s *iter;
1417 if (!pcmcia_sockets)
1418 monitor_printf(mon, "No PCMCIA sockets\n");
1420 for (iter = pcmcia_sockets; iter; iter = iter->next)
1421 monitor_printf(mon, "%s: %s\n", iter->socket->slot_string,
1422 iter->socket->attached ? iter->socket->card_string :
1426 /***********************************************************/
1429 typedef struct IOHandlerRecord {
1431 IOCanReadHandler *fd_read_poll;
1433 IOHandler *fd_write;
1436 /* temporary data */
1438 QLIST_ENTRY(IOHandlerRecord) next;
1441 static QLIST_HEAD(, IOHandlerRecord) io_handlers =
1442 QLIST_HEAD_INITIALIZER(io_handlers);
1445 /* XXX: fd_read_poll should be suppressed, but an API change is
1446 necessary in the character devices to suppress fd_can_read(). */
1447 int qemu_set_fd_handler2(int fd,
1448 IOCanReadHandler *fd_read_poll,
1450 IOHandler *fd_write,
1453 IOHandlerRecord *ioh;
1455 if (!fd_read && !fd_write) {
1456 QLIST_FOREACH(ioh, &io_handlers, next) {
1457 if (ioh->fd == fd) {
1463 QLIST_FOREACH(ioh, &io_handlers, next) {
1467 ioh = qemu_mallocz(sizeof(IOHandlerRecord));
1468 QLIST_INSERT_HEAD(&io_handlers, ioh, next);
1471 ioh->fd_read_poll = fd_read_poll;
1472 ioh->fd_read = fd_read;
1473 ioh->fd_write = fd_write;
1474 ioh->opaque = opaque;
1480 int qemu_set_fd_handler(int fd,
1482 IOHandler *fd_write,
1485 return qemu_set_fd_handler2(fd, NULL, fd_read, fd_write, opaque);
1489 /***********************************************************/
1490 /* Polling handling */
1492 typedef struct PollingEntry {
1495 struct PollingEntry *next;
1498 static PollingEntry *first_polling_entry;
1500 int qemu_add_polling_cb(PollingFunc *func, void *opaque)
1502 PollingEntry **ppe, *pe;
1503 pe = qemu_mallocz(sizeof(PollingEntry));
1505 pe->opaque = opaque;
1506 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next);
1511 void qemu_del_polling_cb(PollingFunc *func, void *opaque)
1513 PollingEntry **ppe, *pe;
1514 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next) {
1516 if (pe->func == func && pe->opaque == opaque) {
1524 /***********************************************************/
1525 /* Wait objects support */
1526 typedef struct WaitObjects {
1528 HANDLE events[MAXIMUM_WAIT_OBJECTS + 1];
1529 WaitObjectFunc *func[MAXIMUM_WAIT_OBJECTS + 1];
1530 void *opaque[MAXIMUM_WAIT_OBJECTS + 1];
1533 static WaitObjects wait_objects = {0};
1535 int qemu_add_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
1537 WaitObjects *w = &wait_objects;
1539 if (w->num >= MAXIMUM_WAIT_OBJECTS)
1541 w->events[w->num] = handle;
1542 w->func[w->num] = func;
1543 w->opaque[w->num] = opaque;
1548 void qemu_del_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
1551 WaitObjects *w = &wait_objects;
1554 for (i = 0; i < w->num; i++) {
1555 if (w->events[i] == handle)
1558 w->events[i] = w->events[i + 1];
1559 w->func[i] = w->func[i + 1];
1560 w->opaque[i] = w->opaque[i + 1];
1568 /***********************************************************/
1569 /* machine registration */
1571 static QEMUMachine *first_machine = NULL;
1572 QEMUMachine *current_machine = NULL;
1574 int qemu_register_machine(QEMUMachine *m)
1577 pm = &first_machine;
1585 static QEMUMachine *find_machine(const char *name)
1589 for(m = first_machine; m != NULL; m = m->next) {
1590 if (!strcmp(m->name, name))
1592 if (m->alias && !strcmp(m->alias, name))
1598 static QEMUMachine *find_default_machine(void)
1602 for(m = first_machine; m != NULL; m = m->next) {
1603 if (m->is_default) {
1610 /***********************************************************/
1611 /* main execution loop */
1613 static void gui_update(void *opaque)
1615 uint64_t interval = GUI_REFRESH_INTERVAL;
1616 DisplayState *ds = opaque;
1617 DisplayChangeListener *dcl = ds->listeners;
1619 qemu_flush_coalesced_mmio_buffer();
1622 while (dcl != NULL) {
1623 if (dcl->gui_timer_interval &&
1624 dcl->gui_timer_interval < interval)
1625 interval = dcl->gui_timer_interval;
1628 qemu_mod_timer(ds->gui_timer, interval + qemu_get_clock(rt_clock));
1631 static void nographic_update(void *opaque)
1633 uint64_t interval = GUI_REFRESH_INTERVAL;
1635 qemu_flush_coalesced_mmio_buffer();
1636 qemu_mod_timer(nographic_timer, interval + qemu_get_clock(rt_clock));
1639 struct vm_change_state_entry {
1640 VMChangeStateHandler *cb;
1642 QLIST_ENTRY (vm_change_state_entry) entries;
1645 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1647 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1650 VMChangeStateEntry *e;
1652 e = qemu_mallocz(sizeof (*e));
1656 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1660 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1662 QLIST_REMOVE (e, entries);
1666 void vm_state_notify(int running, int reason)
1668 VMChangeStateEntry *e;
1670 for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
1671 e->cb(e->opaque, running, reason);
1680 vm_state_notify(1, 0);
1685 /* reset/shutdown handler */
1687 typedef struct QEMUResetEntry {
1688 QTAILQ_ENTRY(QEMUResetEntry) entry;
1689 QEMUResetHandler *func;
1693 static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
1694 QTAILQ_HEAD_INITIALIZER(reset_handlers);
1695 static int reset_requested;
1696 static int shutdown_requested;
1697 static int powerdown_requested;
1698 int debug_requested;
1699 int vmstop_requested;
1700 static int exit_requested;
1702 int qemu_shutdown_requested(void)
1704 int r = shutdown_requested;
1705 shutdown_requested = 0;
1709 int qemu_reset_requested(void)
1711 int r = reset_requested;
1712 reset_requested = 0;
1716 int qemu_powerdown_requested(void)
1718 int r = powerdown_requested;
1719 powerdown_requested = 0;
1723 int qemu_exit_requested(void)
1725 /* just return it, we'll exit() anyway */
1726 return exit_requested;
1729 static int qemu_debug_requested(void)
1731 int r = debug_requested;
1732 debug_requested = 0;
1736 static int qemu_vmstop_requested(void)
1738 int r = vmstop_requested;
1739 vmstop_requested = 0;
1743 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
1745 QEMUResetEntry *re = qemu_mallocz(sizeof(QEMUResetEntry));
1748 re->opaque = opaque;
1749 QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
1752 void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
1756 QTAILQ_FOREACH(re, &reset_handlers, entry) {
1757 if (re->func == func && re->opaque == opaque) {
1758 QTAILQ_REMOVE(&reset_handlers, re, entry);
1765 void qemu_system_reset(void)
1767 QEMUResetEntry *re, *nre;
1769 /* reset all devices */
1770 QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
1771 re->func(re->opaque);
1773 monitor_protocol_event(QEVENT_RESET, NULL);
1774 cpu_synchronize_all_post_reset();
1777 void qemu_system_reset_request(void)
1780 shutdown_requested = 1;
1782 reset_requested = 1;
1784 qemu_notify_event();
1787 void qemu_system_shutdown_request(void)
1789 shutdown_requested = 1;
1790 qemu_notify_event();
1793 void qemu_system_powerdown_request(void)
1795 powerdown_requested = 1;
1796 qemu_notify_event();
1799 void qemu_system_exit_request(void)
1802 qemu_notify_event();
1806 static void host_main_loop_wait(int *timeout)
1812 /* XXX: need to suppress polling by better using win32 events */
1814 for(pe = first_polling_entry; pe != NULL; pe = pe->next) {
1815 ret |= pe->func(pe->opaque);
1819 WaitObjects *w = &wait_objects;
1821 ret = WaitForMultipleObjects(w->num, w->events, FALSE, *timeout);
1822 if (WAIT_OBJECT_0 + 0 <= ret && ret <= WAIT_OBJECT_0 + w->num - 1) {
1823 if (w->func[ret - WAIT_OBJECT_0])
1824 w->func[ret - WAIT_OBJECT_0](w->opaque[ret - WAIT_OBJECT_0]);
1826 /* Check for additional signaled events */
1827 for(i = (ret - WAIT_OBJECT_0 + 1); i < w->num; i++) {
1829 /* Check if event is signaled */
1830 ret2 = WaitForSingleObject(w->events[i], 0);
1831 if(ret2 == WAIT_OBJECT_0) {
1833 w->func[i](w->opaque[i]);
1834 } else if (ret2 == WAIT_TIMEOUT) {
1836 err = GetLastError();
1837 fprintf(stderr, "WaitForSingleObject error %d %d\n", i, err);
1840 } else if (ret == WAIT_TIMEOUT) {
1842 err = GetLastError();
1843 fprintf(stderr, "WaitForMultipleObjects error %d %d\n", ret, err);
1850 static void host_main_loop_wait(int *timeout)
1855 void main_loop_wait(int nonblocking)
1857 IOHandlerRecord *ioh;
1858 fd_set rfds, wfds, xfds;
1866 timeout = qemu_calculate_timeout();
1867 qemu_bh_update_timeout(&timeout);
1870 host_main_loop_wait(&timeout);
1872 /* poll any events */
1873 /* XXX: separate device handlers from system ones */
1878 QLIST_FOREACH(ioh, &io_handlers, next) {
1882 (!ioh->fd_read_poll ||
1883 ioh->fd_read_poll(ioh->opaque) != 0)) {
1884 FD_SET(ioh->fd, &rfds);
1888 if (ioh->fd_write) {
1889 FD_SET(ioh->fd, &wfds);
1895 tv.tv_sec = timeout / 1000;
1896 tv.tv_usec = (timeout % 1000) * 1000;
1898 slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
1900 qemu_mutex_unlock_iothread();
1901 ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
1902 qemu_mutex_lock_iothread();
1904 IOHandlerRecord *pioh;
1906 QLIST_FOREACH_SAFE(ioh, &io_handlers, next, pioh) {
1908 QLIST_REMOVE(ioh, next);
1912 if (ioh->fd_read && FD_ISSET(ioh->fd, &rfds)) {
1913 ioh->fd_read(ioh->opaque);
1915 if (ioh->fd_write && FD_ISSET(ioh->fd, &wfds)) {
1916 ioh->fd_write(ioh->opaque);
1921 slirp_select_poll(&rfds, &wfds, &xfds, (ret < 0));
1923 qemu_run_all_timers();
1925 /* Check bottom-halves last in case any of the earlier events triggered
1931 static int vm_can_run(void)
1933 if (powerdown_requested)
1935 if (reset_requested)
1937 if (shutdown_requested)
1939 if (debug_requested)
1946 qemu_irq qemu_system_powerdown;
1948 static void main_loop(void)
1952 qemu_main_loop_start();
1956 bool nonblocking = false;
1957 #ifdef CONFIG_PROFILER
1960 #ifndef CONFIG_IOTHREAD
1961 nonblocking = tcg_cpu_exec();
1963 #ifdef CONFIG_PROFILER
1964 ti = profile_getclock();
1966 main_loop_wait(nonblocking);
1967 #ifdef CONFIG_PROFILER
1968 dev_time += profile_getclock() - ti;
1970 } while (vm_can_run());
1972 if ((r = qemu_debug_requested())) {
1975 if (qemu_shutdown_requested()) {
1976 monitor_protocol_event(QEVENT_SHUTDOWN, NULL);
1983 if (qemu_reset_requested()) {
1985 qemu_system_reset();
1988 if (qemu_powerdown_requested()) {
1989 monitor_protocol_event(QEVENT_POWERDOWN, NULL);
1990 qemu_irq_raise(qemu_system_powerdown);
1992 if ((r = qemu_vmstop_requested())) {
1995 if (qemu_exit_requested()) {
2002 static void version(void)
2004 printf("QEMU PC emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
2007 static void help(int exitcode)
2009 const char *options_help =
2010 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
2012 #define DEFHEADING(text) stringify(text) "\n"
2013 #include "qemu-options.h"
2019 printf("usage: %s [options] [disk_image]\n"
2021 "'disk_image' is a raw hard image image for IDE hard disk 0\n"
2024 "During emulation, the following keys are useful:\n"
2025 "ctrl-alt-f toggle full screen\n"
2026 "ctrl-alt-n switch to virtual console 'n'\n"
2027 "ctrl-alt toggle mouse and keyboard grab\n"
2029 "When using -nographic, press 'ctrl-a h' to get some help.\n",
2035 #define HAS_ARG 0x0001
2038 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
2040 #define DEFHEADING(text)
2041 #include "qemu-options.h"
2047 typedef struct QEMUOption {
2054 static const QEMUOption qemu_options[] = {
2055 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
2056 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
2057 { option, opt_arg, opt_enum, arch_mask },
2058 #define DEFHEADING(text)
2059 #include "qemu-options.h"
2065 static void select_vgahw (const char *p)
2070 vga_interface_type = VGA_NONE;
2071 if (strstart(p, "std", &opts)) {
2072 vga_interface_type = VGA_STD;
2073 } else if (strstart(p, "cirrus", &opts)) {
2074 vga_interface_type = VGA_CIRRUS;
2075 } else if (strstart(p, "vmware", &opts)) {
2076 vga_interface_type = VGA_VMWARE;
2077 } else if (strstart(p, "xenfb", &opts)) {
2078 vga_interface_type = VGA_XENFB;
2079 } else if (!strstart(p, "none", &opts)) {
2081 fprintf(stderr, "Unknown vga type: %s\n", p);
2085 const char *nextopt;
2087 if (strstart(opts, ",retrace=", &nextopt)) {
2089 if (strstart(opts, "dumb", &nextopt))
2090 vga_retrace_method = VGA_RETRACE_DUMB;
2091 else if (strstart(opts, "precise", &nextopt))
2092 vga_retrace_method = VGA_RETRACE_PRECISE;
2093 else goto invalid_vga;
2094 } else goto invalid_vga;
2099 static int balloon_parse(const char *arg)
2103 if (strcmp(arg, "none") == 0) {
2107 if (!strncmp(arg, "virtio", 6)) {
2108 if (arg[6] == ',') {
2109 /* have params -> parse them */
2110 opts = qemu_opts_parse(&qemu_device_opts, arg+7, 0);
2114 /* create empty opts */
2115 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2117 qemu_opt_set(opts, "driver", "virtio-balloon-pci");
2125 static BOOL WINAPI qemu_ctrl_handler(DWORD type)
2127 exit(STATUS_CONTROL_C_EXIT);
2134 static void termsig_handler(int signal)
2136 qemu_system_shutdown_request();
2139 static void sigchld_handler(int signal)
2141 waitpid(-1, NULL, WNOHANG);
2144 static void sighandler_setup(void)
2146 struct sigaction act;
2148 memset(&act, 0, sizeof(act));
2149 act.sa_handler = termsig_handler;
2150 sigaction(SIGINT, &act, NULL);
2151 sigaction(SIGHUP, &act, NULL);
2152 sigaction(SIGTERM, &act, NULL);
2154 act.sa_handler = sigchld_handler;
2155 act.sa_flags = SA_NOCLDSTOP;
2156 sigaction(SIGCHLD, &act, NULL);
2162 /* Look for support files in the same directory as the executable. */
2163 static char *find_datadir(const char *argv0)
2169 len = GetModuleFileName(NULL, buf, sizeof(buf) - 1);
2176 while (p != buf && *p != '\\')
2179 if (access(buf, R_OK) == 0) {
2180 return qemu_strdup(buf);
2186 /* Find a likely location for support files using the location of the binary.
2187 For installed binaries this will be "$bindir/../share/qemu". When
2188 running from the build tree this will be "$bindir/../pc-bios". */
2189 #define SHARE_SUFFIX "/share/qemu"
2190 #define BUILD_SUFFIX "/pc-bios"
2191 static char *find_datadir(const char *argv0)
2199 #if defined(__linux__)
2202 len = readlink("/proc/self/exe", buf, sizeof(buf) - 1);
2208 #elif defined(__FreeBSD__)
2210 static int mib[4] = {CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, -1};
2211 size_t len = sizeof(buf) - 1;
2214 if (!sysctl(mib, sizeof(mib)/sizeof(*mib), buf, &len, NULL, 0) &&
2216 buf[sizeof(buf) - 1] = '\0';
2221 /* If we don't have any way of figuring out the actual executable
2222 location then try argv[0]. */
2224 p = realpath(argv0, buf);
2232 max_len = strlen(dir) +
2233 MAX(strlen(SHARE_SUFFIX), strlen(BUILD_SUFFIX)) + 1;
2234 res = qemu_mallocz(max_len);
2235 snprintf(res, max_len, "%s%s", dir, SHARE_SUFFIX);
2236 if (access(res, R_OK)) {
2237 snprintf(res, max_len, "%s%s", dir, BUILD_SUFFIX);
2238 if (access(res, R_OK)) {
2250 char *qemu_find_file(int type, const char *name)
2256 /* If name contains path separators then try it as a straight path. */
2257 if ((strchr(name, '/') || strchr(name, '\\'))
2258 && access(name, R_OK) == 0) {
2259 return qemu_strdup(name);
2262 case QEMU_FILE_TYPE_BIOS:
2265 case QEMU_FILE_TYPE_KEYMAP:
2266 subdir = "keymaps/";
2271 len = strlen(data_dir) + strlen(name) + strlen(subdir) + 2;
2272 buf = qemu_mallocz(len);
2273 snprintf(buf, len, "%s/%s%s", data_dir, subdir, name);
2274 if (access(buf, R_OK)) {
2281 static int device_help_func(QemuOpts *opts, void *opaque)
2283 return qdev_device_help(opts);
2286 static int device_init_func(QemuOpts *opts, void *opaque)
2290 dev = qdev_device_add(opts);
2296 static int chardev_init_func(QemuOpts *opts, void *opaque)
2298 CharDriverState *chr;
2300 chr = qemu_chr_open_opts(opts, NULL);
2306 static int mon_init_func(QemuOpts *opts, void *opaque)
2308 CharDriverState *chr;
2309 const char *chardev;
2313 mode = qemu_opt_get(opts, "mode");
2317 if (strcmp(mode, "readline") == 0) {
2318 flags = MONITOR_USE_READLINE;
2319 } else if (strcmp(mode, "control") == 0) {
2320 flags = MONITOR_USE_CONTROL;
2322 fprintf(stderr, "unknown monitor mode \"%s\"\n", mode);
2326 if (qemu_opt_get_bool(opts, "default", 0))
2327 flags |= MONITOR_IS_DEFAULT;
2329 chardev = qemu_opt_get(opts, "chardev");
2330 chr = qemu_chr_find(chardev);
2332 fprintf(stderr, "chardev \"%s\" not found\n", chardev);
2336 monitor_init(chr, flags);
2340 static void monitor_parse(const char *optarg, const char *mode)
2342 static int monitor_device_index = 0;
2348 if (strstart(optarg, "chardev:", &p)) {
2349 snprintf(label, sizeof(label), "%s", p);
2351 snprintf(label, sizeof(label), "compat_monitor%d",
2352 monitor_device_index);
2353 if (monitor_device_index == 0) {
2356 opts = qemu_chr_parse_compat(label, optarg);
2358 fprintf(stderr, "parse error: %s\n", optarg);
2363 opts = qemu_opts_create(&qemu_mon_opts, label, 1);
2365 fprintf(stderr, "duplicate chardev: %s\n", label);
2368 qemu_opt_set(opts, "mode", mode);
2369 qemu_opt_set(opts, "chardev", label);
2371 qemu_opt_set(opts, "default", "on");
2372 monitor_device_index++;
2375 struct device_config {
2377 DEV_USB, /* -usbdevice */
2379 DEV_SERIAL, /* -serial */
2380 DEV_PARALLEL, /* -parallel */
2381 DEV_VIRTCON, /* -virtioconsole */
2382 DEV_DEBUGCON, /* -debugcon */
2384 const char *cmdline;
2385 QTAILQ_ENTRY(device_config) next;
2387 QTAILQ_HEAD(, device_config) device_configs = QTAILQ_HEAD_INITIALIZER(device_configs);
2389 static void add_device_config(int type, const char *cmdline)
2391 struct device_config *conf;
2393 conf = qemu_mallocz(sizeof(*conf));
2395 conf->cmdline = cmdline;
2396 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2399 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2401 struct device_config *conf;
2404 QTAILQ_FOREACH(conf, &device_configs, next) {
2405 if (conf->type != type)
2407 rc = func(conf->cmdline);
2414 static int serial_parse(const char *devname)
2416 static int index = 0;
2419 if (strcmp(devname, "none") == 0)
2421 if (index == MAX_SERIAL_PORTS) {
2422 fprintf(stderr, "qemu: too many serial ports\n");
2425 snprintf(label, sizeof(label), "serial%d", index);
2426 serial_hds[index] = qemu_chr_open(label, devname, NULL);
2427 if (!serial_hds[index]) {
2428 fprintf(stderr, "qemu: could not open serial device '%s': %s\n",
2429 devname, strerror(errno));
2436 static int parallel_parse(const char *devname)
2438 static int index = 0;
2441 if (strcmp(devname, "none") == 0)
2443 if (index == MAX_PARALLEL_PORTS) {
2444 fprintf(stderr, "qemu: too many parallel ports\n");
2447 snprintf(label, sizeof(label), "parallel%d", index);
2448 parallel_hds[index] = qemu_chr_open(label, devname, NULL);
2449 if (!parallel_hds[index]) {
2450 fprintf(stderr, "qemu: could not open parallel device '%s': %s\n",
2451 devname, strerror(errno));
2458 static int virtcon_parse(const char *devname)
2460 static int index = 0;
2462 QemuOpts *bus_opts, *dev_opts;
2464 if (strcmp(devname, "none") == 0)
2466 if (index == MAX_VIRTIO_CONSOLES) {
2467 fprintf(stderr, "qemu: too many virtio consoles\n");
2471 bus_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2472 qemu_opt_set(bus_opts, "driver", "virtio-serial");
2474 dev_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2475 qemu_opt_set(dev_opts, "driver", "virtconsole");
2477 snprintf(label, sizeof(label), "virtcon%d", index);
2478 virtcon_hds[index] = qemu_chr_open(label, devname, NULL);
2479 if (!virtcon_hds[index]) {
2480 fprintf(stderr, "qemu: could not open virtio console '%s': %s\n",
2481 devname, strerror(errno));
2484 qemu_opt_set(dev_opts, "chardev", label);
2490 static int debugcon_parse(const char *devname)
2494 if (!qemu_chr_open("debugcon", devname, NULL)) {
2497 opts = qemu_opts_create(&qemu_device_opts, "debugcon", 1);
2499 fprintf(stderr, "qemu: already have a debugcon device\n");
2502 qemu_opt_set(opts, "driver", "isa-debugcon");
2503 qemu_opt_set(opts, "chardev", "debugcon");
2507 static const QEMUOption *lookup_opt(int argc, char **argv,
2508 const char **poptarg, int *poptind)
2510 const QEMUOption *popt;
2511 int optind = *poptind;
2512 char *r = argv[optind];
2515 loc_set_cmdline(argv, optind, 1);
2517 /* Treat --foo the same as -foo. */
2520 popt = qemu_options;
2523 error_report("invalid option");
2526 if (!strcmp(popt->name, r + 1))
2530 if (popt->flags & HAS_ARG) {
2531 if (optind >= argc) {
2532 error_report("requires an argument");
2535 optarg = argv[optind++];
2536 loc_set_cmdline(argv, optind - 2, 2);
2547 int main(int argc, char **argv, char **envp)
2549 const char *gdbstub_dev = NULL;
2551 int snapshot, linux_boot;
2552 const char *icount_option = NULL;
2553 const char *initrd_filename;
2554 const char *kernel_filename, *kernel_cmdline;
2555 char boot_devices[33] = "cad"; /* default to HD->floppy->CD-ROM */
2557 DisplayChangeListener *dcl;
2558 int cyls, heads, secs, translation;
2559 QemuOpts *hda_opts = NULL, *opts;
2562 const char *loadvm = NULL;
2563 QEMUMachine *machine;
2564 const char *cpu_model;
2569 const char *pid_file = NULL;
2570 const char *incoming = NULL;
2573 struct passwd *pwd = NULL;
2574 const char *chroot_dir = NULL;
2575 const char *run_as = NULL;
2577 int show_vnc_port = 0;
2580 error_set_progname(argv[0]);
2584 qemu_cache_utils_init(envp);
2586 QLIST_INIT (&vm_change_state_head);
2589 struct sigaction act;
2590 sigfillset(&act.sa_mask);
2592 act.sa_handler = SIG_IGN;
2593 sigaction(SIGPIPE, &act, NULL);
2596 SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE);
2597 /* Note: cpu_interrupt() is currently not SMP safe, so we force
2598 QEMU to run on a single CPU */
2603 h = GetCurrentProcess();
2604 if (GetProcessAffinityMask(h, &mask, &smask)) {
2605 for(i = 0; i < 32; i++) {
2606 if (mask & (1 << i))
2611 SetProcessAffinityMask(h, mask);
2617 module_call_init(MODULE_INIT_MACHINE);
2618 machine = find_default_machine();
2620 initrd_filename = NULL;
2623 kernel_filename = NULL;
2624 kernel_cmdline = "";
2625 cyls = heads = secs = 0;
2626 translation = BIOS_ATA_TRANSLATION_AUTO;
2628 for (i = 0; i < MAX_NODES; i++) {
2630 node_cpumask[i] = 0;
2639 /* first pass of option parsing */
2641 while (optind < argc) {
2642 if (argv[optind][0] != '-') {
2647 const QEMUOption *popt;
2649 popt = lookup_opt(argc, argv, &optarg, &optind);
2650 switch (popt->index) {
2651 case QEMU_OPTION_nodefconfig:
2661 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2662 if (ret == -EINVAL) {
2666 ret = qemu_read_config_file(arch_config_name);
2667 if (ret == -EINVAL) {
2673 /* second pass of option parsing */
2678 if (argv[optind][0] != '-') {
2679 hda_opts = drive_add(argv[optind++], HD_ALIAS, 0);
2681 const QEMUOption *popt;
2683 popt = lookup_opt(argc, argv, &optarg, &optind);
2684 if (!(popt->arch_mask & arch_type)) {
2685 printf("Option %s not supported for this target\n", popt->name);
2688 switch(popt->index) {
2690 machine = find_machine(optarg);
2693 printf("Supported machines are:\n");
2694 for(m = first_machine; m != NULL; m = m->next) {
2696 printf("%-10s %s (alias of %s)\n",
2697 m->alias, m->desc, m->name);
2698 printf("%-10s %s%s\n",
2700 m->is_default ? " (default)" : "");
2702 exit(*optarg != '?');
2705 case QEMU_OPTION_cpu:
2706 /* hw initialization will check this */
2707 if (*optarg == '?') {
2708 /* XXX: implement xxx_cpu_list for targets that still miss it */
2709 #if defined(cpu_list_id)
2710 cpu_list_id(stdout, &fprintf, optarg);
2711 #elif defined(cpu_list)
2712 cpu_list(stdout, &fprintf); /* deprecated */
2719 case QEMU_OPTION_initrd:
2720 initrd_filename = optarg;
2722 case QEMU_OPTION_hda:
2724 hda_opts = drive_add(optarg, HD_ALIAS, 0);
2726 hda_opts = drive_add(optarg, HD_ALIAS
2727 ",cyls=%d,heads=%d,secs=%d%s",
2728 0, cyls, heads, secs,
2729 translation == BIOS_ATA_TRANSLATION_LBA ?
2731 translation == BIOS_ATA_TRANSLATION_NONE ?
2732 ",trans=none" : "");
2734 case QEMU_OPTION_hdb:
2735 case QEMU_OPTION_hdc:
2736 case QEMU_OPTION_hdd:
2737 drive_add(optarg, HD_ALIAS, popt->index - QEMU_OPTION_hda);
2739 case QEMU_OPTION_drive:
2740 drive_add(NULL, "%s", optarg);
2742 case QEMU_OPTION_set:
2743 if (qemu_set_option(optarg) != 0)
2746 case QEMU_OPTION_global:
2747 if (qemu_global_option(optarg) != 0)
2750 case QEMU_OPTION_mtdblock:
2751 drive_add(optarg, MTD_ALIAS);
2753 case QEMU_OPTION_sd:
2754 drive_add(optarg, SD_ALIAS);
2756 case QEMU_OPTION_pflash:
2757 drive_add(optarg, PFLASH_ALIAS);
2759 case QEMU_OPTION_snapshot:
2762 case QEMU_OPTION_hdachs:
2766 cyls = strtol(p, (char **)&p, 0);
2767 if (cyls < 1 || cyls > 16383)
2772 heads = strtol(p, (char **)&p, 0);
2773 if (heads < 1 || heads > 16)
2778 secs = strtol(p, (char **)&p, 0);
2779 if (secs < 1 || secs > 63)
2783 if (!strcmp(p, "none"))
2784 translation = BIOS_ATA_TRANSLATION_NONE;
2785 else if (!strcmp(p, "lba"))
2786 translation = BIOS_ATA_TRANSLATION_LBA;
2787 else if (!strcmp(p, "auto"))
2788 translation = BIOS_ATA_TRANSLATION_AUTO;
2791 } else if (*p != '\0') {
2793 fprintf(stderr, "qemu: invalid physical CHS format\n");
2796 if (hda_opts != NULL) {
2798 snprintf(num, sizeof(num), "%d", cyls);
2799 qemu_opt_set(hda_opts, "cyls", num);
2800 snprintf(num, sizeof(num), "%d", heads);
2801 qemu_opt_set(hda_opts, "heads", num);
2802 snprintf(num, sizeof(num), "%d", secs);
2803 qemu_opt_set(hda_opts, "secs", num);
2804 if (translation == BIOS_ATA_TRANSLATION_LBA)
2805 qemu_opt_set(hda_opts, "trans", "lba");
2806 if (translation == BIOS_ATA_TRANSLATION_NONE)
2807 qemu_opt_set(hda_opts, "trans", "none");
2811 case QEMU_OPTION_numa:
2812 if (nb_numa_nodes >= MAX_NODES) {
2813 fprintf(stderr, "qemu: too many NUMA nodes\n");
2818 case QEMU_OPTION_nographic:
2819 display_type = DT_NOGRAPHIC;
2821 #ifdef CONFIG_CURSES
2822 case QEMU_OPTION_curses:
2823 display_type = DT_CURSES;
2826 case QEMU_OPTION_portrait:
2829 case QEMU_OPTION_kernel:
2830 kernel_filename = optarg;
2832 case QEMU_OPTION_append:
2833 kernel_cmdline = optarg;
2835 case QEMU_OPTION_cdrom:
2836 drive_add(optarg, CDROM_ALIAS);
2838 case QEMU_OPTION_boot:
2840 static const char * const params[] = {
2841 "order", "once", "menu", NULL
2843 char buf[sizeof(boot_devices)];
2844 char *standard_boot_devices;
2847 if (!strchr(optarg, '=')) {
2849 pstrcpy(buf, sizeof(buf), optarg);
2850 } else if (check_params(buf, sizeof(buf), params, optarg) < 0) {
2852 "qemu: unknown boot parameter '%s' in '%s'\n",
2858 get_param_value(buf, sizeof(buf), "order", optarg)) {
2859 validate_bootdevices(buf);
2860 pstrcpy(boot_devices, sizeof(boot_devices), buf);
2863 if (get_param_value(buf, sizeof(buf),
2865 validate_bootdevices(buf);
2866 standard_boot_devices = qemu_strdup(boot_devices);
2867 pstrcpy(boot_devices, sizeof(boot_devices), buf);
2868 qemu_register_reset(restore_boot_devices,
2869 standard_boot_devices);
2871 if (get_param_value(buf, sizeof(buf),
2873 if (!strcmp(buf, "on")) {
2875 } else if (!strcmp(buf, "off")) {
2879 "qemu: invalid option value '%s'\n",
2887 case QEMU_OPTION_fda:
2888 case QEMU_OPTION_fdb:
2889 drive_add(optarg, FD_ALIAS, popt->index - QEMU_OPTION_fda);
2891 case QEMU_OPTION_no_fd_bootchk:
2894 case QEMU_OPTION_netdev:
2895 if (net_client_parse(&qemu_netdev_opts, optarg) == -1) {
2899 case QEMU_OPTION_net:
2900 if (net_client_parse(&qemu_net_opts, optarg) == -1) {
2905 case QEMU_OPTION_tftp:
2906 legacy_tftp_prefix = optarg;
2908 case QEMU_OPTION_bootp:
2909 legacy_bootp_filename = optarg;
2912 case QEMU_OPTION_smb:
2913 if (net_slirp_smb(optarg) < 0)
2917 case QEMU_OPTION_redir:
2918 if (net_slirp_redir(optarg) < 0)
2922 case QEMU_OPTION_bt:
2923 add_device_config(DEV_BT, optarg);
2925 case QEMU_OPTION_audio_help:
2926 if (!(audio_available())) {
2927 printf("Option %s not supported for this target\n", popt->name);
2933 case QEMU_OPTION_soundhw:
2934 if (!(audio_available())) {
2935 printf("Option %s not supported for this target\n", popt->name);
2938 select_soundhw (optarg);
2943 case QEMU_OPTION_version:
2947 case QEMU_OPTION_m: {
2951 value = strtoul(optarg, &ptr, 10);
2953 case 0: case 'M': case 'm':
2960 fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
2964 /* On 32-bit hosts, QEMU is limited by virtual address space */
2965 if (value > (2047 << 20) && HOST_LONG_BITS == 32) {
2966 fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
2969 if (value != (uint64_t)(ram_addr_t)value) {
2970 fprintf(stderr, "qemu: ram size too large\n");
2976 case QEMU_OPTION_mempath:
2980 case QEMU_OPTION_mem_prealloc:
2985 set_cpu_log(optarg);
2988 gdbstub_dev = "tcp::" DEFAULT_GDBSTUB_PORT;
2990 case QEMU_OPTION_gdb:
2991 gdbstub_dev = optarg;
2996 case QEMU_OPTION_bios:
2999 case QEMU_OPTION_singlestep:
3006 keyboard_layout = optarg;
3008 case QEMU_OPTION_localtime:
3011 case QEMU_OPTION_vga:
3012 select_vgahw (optarg);
3019 w = strtol(p, (char **)&p, 10);
3022 fprintf(stderr, "qemu: invalid resolution or depth\n");
3028 h = strtol(p, (char **)&p, 10);
3033 depth = strtol(p, (char **)&p, 10);
3034 if (depth != 8 && depth != 15 && depth != 16 &&
3035 depth != 24 && depth != 32)
3037 } else if (*p == '\0') {
3038 depth = graphic_depth;
3045 graphic_depth = depth;
3048 case QEMU_OPTION_echr:
3051 term_escape_char = strtol(optarg, &r, 0);
3053 printf("Bad argument to echr\n");
3056 case QEMU_OPTION_monitor:
3057 monitor_parse(optarg, "readline");
3058 default_monitor = 0;
3060 case QEMU_OPTION_qmp:
3061 monitor_parse(optarg, "control");
3062 default_monitor = 0;
3064 case QEMU_OPTION_mon:
3065 opts = qemu_opts_parse(&qemu_mon_opts, optarg, 1);
3069 default_monitor = 0;
3071 case QEMU_OPTION_chardev:
3072 opts = qemu_opts_parse(&qemu_chardev_opts, optarg, 1);
3077 case QEMU_OPTION_serial:
3078 add_device_config(DEV_SERIAL, optarg);
3080 if (strncmp(optarg, "mon:", 4) == 0) {
3081 default_monitor = 0;
3084 case QEMU_OPTION_watchdog:
3087 "qemu: only one watchdog option may be given\n");
3092 case QEMU_OPTION_watchdog_action:
3093 if (select_watchdog_action(optarg) == -1) {
3094 fprintf(stderr, "Unknown -watchdog-action parameter\n");
3098 case QEMU_OPTION_virtiocon:
3099 add_device_config(DEV_VIRTCON, optarg);
3100 default_virtcon = 0;
3101 if (strncmp(optarg, "mon:", 4) == 0) {
3102 default_monitor = 0;
3105 case QEMU_OPTION_parallel:
3106 add_device_config(DEV_PARALLEL, optarg);
3107 default_parallel = 0;
3108 if (strncmp(optarg, "mon:", 4) == 0) {
3109 default_monitor = 0;
3112 case QEMU_OPTION_debugcon:
3113 add_device_config(DEV_DEBUGCON, optarg);
3115 case QEMU_OPTION_loadvm:
3118 case QEMU_OPTION_full_screen:
3122 case QEMU_OPTION_no_frame:
3125 case QEMU_OPTION_alt_grab:
3128 case QEMU_OPTION_ctrl_grab:
3131 case QEMU_OPTION_no_quit:
3134 case QEMU_OPTION_sdl:
3135 display_type = DT_SDL;
3138 case QEMU_OPTION_pidfile:
3141 case QEMU_OPTION_win2k_hack:
3142 win2k_install_hack = 1;
3144 case QEMU_OPTION_rtc_td_hack:
3147 case QEMU_OPTION_acpitable:
3148 do_acpitable_option(optarg);
3150 case QEMU_OPTION_smbios:
3151 do_smbios_option(optarg);
3153 case QEMU_OPTION_enable_kvm:
3156 case QEMU_OPTION_usb:
3159 case QEMU_OPTION_usbdevice:
3161 add_device_config(DEV_USB, optarg);
3163 case QEMU_OPTION_device:
3164 if (!qemu_opts_parse(&qemu_device_opts, optarg, 1)) {
3168 case QEMU_OPTION_smp:
3171 fprintf(stderr, "Invalid number of CPUs\n");
3174 if (max_cpus < smp_cpus) {
3175 fprintf(stderr, "maxcpus must be equal to or greater than "
3179 if (max_cpus > 255) {
3180 fprintf(stderr, "Unsupported number of maxcpus\n");
3184 case QEMU_OPTION_vnc:
3185 display_type = DT_VNC;
3186 vnc_display = optarg;
3188 case QEMU_OPTION_no_acpi:
3191 case QEMU_OPTION_no_hpet:
3194 case QEMU_OPTION_balloon:
3195 if (balloon_parse(optarg) < 0) {
3196 fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
3200 case QEMU_OPTION_no_reboot:
3203 case QEMU_OPTION_no_shutdown:
3206 case QEMU_OPTION_show_cursor:
3209 case QEMU_OPTION_uuid:
3210 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
3211 fprintf(stderr, "Fail to parse UUID string."
3212 " Wrong format.\n");
3217 case QEMU_OPTION_daemonize:
3221 case QEMU_OPTION_option_rom:
3222 if (nb_option_roms >= MAX_OPTION_ROMS) {
3223 fprintf(stderr, "Too many option ROMs\n");
3226 option_rom[nb_option_roms] = optarg;
3229 case QEMU_OPTION_semihosting:
3230 semihosting_enabled = 1;
3232 case QEMU_OPTION_name:
3233 qemu_name = qemu_strdup(optarg);
3235 char *p = strchr(qemu_name, ',');
3238 if (strncmp(p, "process=", 8)) {
3239 fprintf(stderr, "Unknown subargument %s to -name", p);
3247 case QEMU_OPTION_prom_env:
3248 if (nb_prom_envs >= MAX_PROM_ENVS) {
3249 fprintf(stderr, "Too many prom variables\n");
3252 prom_envs[nb_prom_envs] = optarg;
3255 case QEMU_OPTION_old_param:
3258 case QEMU_OPTION_clock:
3259 configure_alarms(optarg);
3261 case QEMU_OPTION_startdate:
3262 configure_rtc_date_offset(optarg, 1);
3264 case QEMU_OPTION_rtc:
3265 opts = qemu_opts_parse(&qemu_rtc_opts, optarg, 0);
3269 configure_rtc(opts);
3271 case QEMU_OPTION_tb_size:
3272 tb_size = strtol(optarg, NULL, 0);
3276 case QEMU_OPTION_icount:
3277 icount_option = optarg;
3279 case QEMU_OPTION_incoming:
3282 case QEMU_OPTION_nodefaults:
3284 default_parallel = 0;
3285 default_virtcon = 0;
3286 default_monitor = 0;
3294 case QEMU_OPTION_chroot:
3295 chroot_dir = optarg;
3297 case QEMU_OPTION_runas:
3301 case QEMU_OPTION_xen_domid:
3302 if (!(xen_available())) {
3303 printf("Option %s not supported for this target\n", popt->name);
3306 xen_domid = atoi(optarg);
3308 case QEMU_OPTION_xen_create:
3309 if (!(xen_available())) {
3310 printf("Option %s not supported for this target\n", popt->name);
3313 xen_mode = XEN_CREATE;
3315 case QEMU_OPTION_xen_attach:
3316 if (!(xen_available())) {
3317 printf("Option %s not supported for this target\n", popt->name);
3320 xen_mode = XEN_ATTACH;
3322 case QEMU_OPTION_readconfig:
3324 int ret = qemu_read_config_file(optarg);
3326 fprintf(stderr, "read config %s: %s\n", optarg,
3332 case QEMU_OPTION_writeconfig:
3335 if (strcmp(optarg, "-") == 0) {
3338 fp = fopen(optarg, "w");
3340 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
3344 qemu_config_write(fp);
3353 /* If no data_dir is specified then try to find it relative to the
3356 data_dir = find_datadir(argv[0]);
3358 /* If all else fails use the install patch specified when building. */
3360 data_dir = CONFIG_QEMU_SHAREDIR;
3364 * Default to max_cpus = smp_cpus, in case the user doesn't
3365 * specify a max_cpus value.
3368 max_cpus = smp_cpus;
3370 machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
3371 if (smp_cpus > machine->max_cpus) {
3372 fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
3373 "supported by machine `%s' (%d)\n", smp_cpus, machine->name,
3378 qemu_opts_foreach(&qemu_device_opts, default_driver_check, NULL, 0);
3379 qemu_opts_foreach(&qemu_global_opts, default_driver_check, NULL, 0);
3381 if (machine->no_serial) {
3384 if (machine->no_parallel) {
3385 default_parallel = 0;
3387 if (!machine->use_virtcon) {
3388 default_virtcon = 0;
3390 if (machine->no_vga) {
3393 if (machine->no_floppy) {
3396 if (machine->no_cdrom) {
3399 if (machine->no_sdcard) {
3403 if (display_type == DT_NOGRAPHIC) {
3404 if (default_parallel)
3405 add_device_config(DEV_PARALLEL, "null");
3406 if (default_serial && default_monitor) {
3407 add_device_config(DEV_SERIAL, "mon:stdio");
3408 } else if (default_virtcon && default_monitor) {
3409 add_device_config(DEV_VIRTCON, "mon:stdio");
3412 add_device_config(DEV_SERIAL, "stdio");
3413 if (default_virtcon)
3414 add_device_config(DEV_VIRTCON, "stdio");
3415 if (default_monitor)
3416 monitor_parse("stdio", "readline");
3420 add_device_config(DEV_SERIAL, "vc:80Cx24C");
3421 if (default_parallel)
3422 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
3423 if (default_monitor)
3424 monitor_parse("vc:80Cx24C", "readline");
3425 if (default_virtcon)
3426 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
3429 vga_interface_type = VGA_CIRRUS;
3431 if (qemu_opts_foreach(&qemu_chardev_opts, chardev_init_func, NULL, 1) != 0)
3438 if (pipe(fds) == -1)
3449 len = read(fds[0], &status, 1);
3450 if (len == -1 && (errno == EINTR))
3455 else if (status == 1) {
3456 fprintf(stderr, "Could not acquire pidfile: %s\n", strerror(errno));
3464 qemu_set_cloexec(fds[1]);
3476 signal(SIGTSTP, SIG_IGN);
3477 signal(SIGTTOU, SIG_IGN);
3478 signal(SIGTTIN, SIG_IGN);
3482 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
3486 if (write(fds[1], &status, 1) != 1) {
3487 perror("daemonize. Writing to pipe\n");
3491 fprintf(stderr, "Could not acquire pid file: %s\n", strerror(errno));
3496 int ret = kvm_init(smp_cpus);
3498 if (!kvm_available()) {
3499 printf("KVM not supported for this target\n");
3501 fprintf(stderr, "failed to initialize KVM: %s\n", strerror(-ret));
3507 if (qemu_init_main_loop()) {
3508 fprintf(stderr, "qemu_init_main_loop failed\n");
3511 linux_boot = (kernel_filename != NULL);
3513 if (!linux_boot && *kernel_cmdline != '\0') {
3514 fprintf(stderr, "-append only allowed with -kernel option\n");
3518 if (!linux_boot && initrd_filename != NULL) {
3519 fprintf(stderr, "-initrd only allowed with -kernel option\n");
3524 /* Win32 doesn't support line-buffering and requires size >= 2 */
3525 setvbuf(stdout, NULL, _IOLBF, 0);
3528 if (init_timer_alarm() < 0) {
3529 fprintf(stderr, "could not initialize alarm timer\n");
3532 configure_icount(icount_option);
3536 if (net_init_clients() < 0) {
3540 /* init the bluetooth world */
3541 if (foreach_device_config(DEV_BT, bt_parse))
3544 /* init the memory */
3546 ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
3548 /* init the dynamic translator */
3549 cpu_exec_init_all(tb_size * 1024 * 1024);
3551 bdrv_init_with_whitelist();
3555 if (default_cdrom) {
3556 /* we always create the cdrom drive, even if no disk is there */
3557 drive_add(NULL, CDROM_ALIAS);
3560 if (default_floppy) {
3561 /* we always create at least one floppy */
3562 drive_add(NULL, FD_ALIAS, 0);
3565 if (default_sdcard) {
3566 /* we always create one sd slot, even if no card is in it */
3567 drive_add(NULL, SD_ALIAS);
3570 /* open the virtual block devices */
3572 qemu_opts_foreach(&qemu_drive_opts, drive_enable_snapshot, NULL, 0);
3573 if (qemu_opts_foreach(&qemu_drive_opts, drive_init_func, machine, 1) != 0)
3576 register_savevm_live("ram", 0, 3, NULL, ram_save_live, NULL,
3579 if (nb_numa_nodes > 0) {
3582 if (nb_numa_nodes > smp_cpus) {
3583 nb_numa_nodes = smp_cpus;
3586 /* If no memory size if given for any node, assume the default case
3587 * and distribute the available memory equally across all nodes
3589 for (i = 0; i < nb_numa_nodes; i++) {
3590 if (node_mem[i] != 0)
3593 if (i == nb_numa_nodes) {
3594 uint64_t usedmem = 0;
3596 /* On Linux, the each node's border has to be 8MB aligned,
3597 * the final node gets the rest.
3599 for (i = 0; i < nb_numa_nodes - 1; i++) {
3600 node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1);
3601 usedmem += node_mem[i];
3603 node_mem[i] = ram_size - usedmem;
3606 for (i = 0; i < nb_numa_nodes; i++) {
3607 if (node_cpumask[i] != 0)
3610 /* assigning the VCPUs round-robin is easier to implement, guest OSes
3611 * must cope with this anyway, because there are BIOSes out there in
3612 * real machines which also use this scheme.
3614 if (i == nb_numa_nodes) {
3615 for (i = 0; i < smp_cpus; i++) {
3616 node_cpumask[i % nb_numa_nodes] |= 1 << i;
3621 if (qemu_opts_foreach(&qemu_mon_opts, mon_init_func, NULL, 1) != 0) {
3625 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
3627 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
3629 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
3631 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
3634 module_call_init(MODULE_INIT_DEVICE);
3636 if (qemu_opts_foreach(&qemu_device_opts, device_help_func, NULL, 0) != 0)
3640 i = select_watchdog(watchdog);
3642 exit (i == 1 ? 1 : 0);
3645 if (machine->compat_props) {
3646 qdev_prop_register_global_list(machine->compat_props);
3650 machine->init(ram_size, boot_devices,
3651 kernel_filename, kernel_cmdline, initrd_filename, cpu_model);
3653 cpu_synchronize_all_post_init();
3656 /* must be after terminal init, SDL library changes signal handlers */
3662 current_machine = machine;
3664 /* init USB devices */
3666 if (foreach_device_config(DEV_USB, usb_parse) < 0)
3670 /* init generic devices */
3671 if (qemu_opts_foreach(&qemu_device_opts, device_init_func, NULL, 1) != 0)
3674 net_check_clients();
3676 /* just use the first displaystate for the moment */
3677 ds = get_displaystate();
3679 if (display_type == DT_DEFAULT) {
3680 #if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
3681 display_type = DT_SDL;
3683 display_type = DT_VNC;
3684 vnc_display = "localhost:0,to=99";
3690 switch (display_type) {
3693 #if defined(CONFIG_CURSES)
3695 curses_display_init(ds, full_screen);
3698 #if defined(CONFIG_SDL)
3700 sdl_display_init(ds, full_screen, no_frame);
3702 #elif defined(CONFIG_COCOA)
3704 cocoa_display_init(ds, full_screen);
3708 vnc_display_init(ds);
3709 if (vnc_display_open(ds, vnc_display) < 0)
3712 if (show_vnc_port) {
3713 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
3721 dcl = ds->listeners;
3722 while (dcl != NULL) {
3723 if (dcl->dpy_refresh != NULL) {
3724 ds->gui_timer = qemu_new_timer(rt_clock, gui_update, ds);
3725 qemu_mod_timer(ds->gui_timer, qemu_get_clock(rt_clock));
3730 if (display_type == DT_NOGRAPHIC || display_type == DT_VNC) {
3731 nographic_timer = qemu_new_timer(rt_clock, nographic_update, NULL);
3732 qemu_mod_timer(nographic_timer, qemu_get_clock(rt_clock));
3735 text_consoles_set_display(ds);
3737 if (gdbstub_dev && gdbserver_start(gdbstub_dev) < 0) {
3738 fprintf(stderr, "qemu: could not open gdbserver on device '%s'\n",
3743 qdev_machine_creation_done();
3745 if (rom_load_all() != 0) {
3746 fprintf(stderr, "rom loading failed\n");
3750 qemu_system_reset();
3752 if (load_vmstate(loadvm) < 0) {
3758 qemu_start_incoming_migration(incoming);
3759 } else if (autostart) {
3769 len = write(fds[1], &status, 1);
3770 if (len == -1 && (errno == EINTR))
3777 perror("not able to chdir to /");
3780 TFR(fd = qemu_open("/dev/null", O_RDWR));
3786 pwd = getpwnam(run_as);
3788 fprintf(stderr, "User \"%s\" doesn't exist\n", run_as);
3794 if (chroot(chroot_dir) < 0) {
3795 fprintf(stderr, "chroot failed\n");
3799 perror("not able to chdir to /");
3805 if (setgid(pwd->pw_gid) < 0) {
3806 fprintf(stderr, "Failed to setgid(%d)\n", pwd->pw_gid);
3809 if (setuid(pwd->pw_uid) < 0) {
3810 fprintf(stderr, "Failed to setuid(%d)\n", pwd->pw_uid);
3813 if (setuid(0) != -1) {
3814 fprintf(stderr, "Dropping privileges failed\n");