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__)
62 #include <sys/prctl.h>
64 #include <linux/ppdev.h>
65 #include <linux/parport.h>
69 #include <sys/ethernet.h>
70 #include <sys/sockio.h>
71 #include <netinet/arp.h>
72 #include <netinet/in.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"
123 #include "hw/audiodev.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"
150 #include "qemu-option.h"
151 #include "qemu-config.h"
152 #include "qemu-objects.h"
156 #include "exec-all.h"
158 #include "qemu_socket.h"
160 #include "slirp/libslirp.h"
162 #include "qemu-queue.h"
165 //#define DEBUG_SLIRP
167 #define DEFAULT_RAM_SIZE 128
169 #define MAX_VIRTIO_CONSOLES 1
171 static const char *data_dir;
172 const char *bios_name = NULL;
173 /* Note: drives_table[MAX_DRIVES] is a dummy block driver if none available
174 to store the VM snapshots */
175 struct drivelist drives = QTAILQ_HEAD_INITIALIZER(drives);
176 struct driveoptlist driveopts = QTAILQ_HEAD_INITIALIZER(driveopts);
177 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
178 DisplayType display_type = DT_DEFAULT;
179 const char* keyboard_layout = NULL;
181 const char *mem_path = NULL;
183 int mem_prealloc = 0; /* force preallocation of physical target memory */
186 NICInfo nd_table[MAX_NICS];
189 static int rtc_utc = 1;
190 static int rtc_date_offset = -1; /* -1 means no change */
191 QEMUClock *rtc_clock;
192 int vga_interface_type = VGA_NONE;
194 int graphic_width = 1024;
195 int graphic_height = 768;
196 int graphic_depth = 8;
198 int graphic_width = 800;
199 int graphic_height = 600;
200 int graphic_depth = 15;
202 static int full_screen = 0;
204 static int no_frame = 0;
207 CharDriverState *serial_hds[MAX_SERIAL_PORTS];
208 CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
209 CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES];
211 int win2k_install_hack = 0;
220 const char *vnc_display;
221 int acpi_enabled = 1;
227 int graphic_rotate = 0;
228 uint8_t irq0override = 1;
232 const char *watchdog;
233 const char *option_rom[MAX_OPTION_ROMS];
235 int semihosting_enabled = 0;
239 const char *qemu_name;
242 #if defined(TARGET_SPARC) || defined(TARGET_PPC)
243 unsigned int nb_prom_envs = 0;
244 const char *prom_envs[MAX_PROM_ENVS];
249 uint64_t node_mem[MAX_NODES];
250 uint64_t node_cpumask[MAX_NODES];
252 static CPUState *cur_cpu;
253 static CPUState *next_cpu;
254 static QEMUTimer *nographic_timer;
256 uint8_t qemu_uuid[16];
258 static QEMUBootSetHandler *boot_set_handler;
259 static void *boot_set_opaque;
262 #define SIG_IPI (SIGRTMIN+4)
264 #define SIG_IPI SIGUSR1
267 static int default_serial = 1;
268 static int default_parallel = 1;
269 static int default_virtcon = 1;
270 static int default_monitor = 1;
271 static int default_vga = 1;
272 static int default_floppy = 1;
273 static int default_cdrom = 1;
274 static int default_sdcard = 1;
280 { .driver = "isa-serial", .flag = &default_serial },
281 { .driver = "isa-parallel", .flag = &default_parallel },
282 { .driver = "isa-fdc", .flag = &default_floppy },
283 { .driver = "ide-drive", .flag = &default_cdrom },
284 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
285 { .driver = "virtio-serial-s390", .flag = &default_virtcon },
286 { .driver = "virtio-serial", .flag = &default_virtcon },
287 { .driver = "VGA", .flag = &default_vga },
288 { .driver = "cirrus-vga", .flag = &default_vga },
289 { .driver = "vmware-svga", .flag = &default_vga },
292 static int default_driver_check(QemuOpts *opts, void *opaque)
294 const char *driver = qemu_opt_get(opts, "driver");
299 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
300 if (strcmp(default_list[i].driver, driver) != 0)
302 *(default_list[i].flag) = 0;
307 /***********************************************************/
308 /* x86 ISA bus support */
310 target_phys_addr_t isa_mem_base = 0;
313 /***********************************************************/
314 void hw_error(const char *fmt, ...)
320 fprintf(stderr, "qemu: hardware error: ");
321 vfprintf(stderr, fmt, ap);
322 fprintf(stderr, "\n");
323 for(env = first_cpu; env != NULL; env = env->next_cpu) {
324 fprintf(stderr, "CPU #%d:\n", env->cpu_index);
326 cpu_dump_state(env, stderr, fprintf, X86_DUMP_FPU);
328 cpu_dump_state(env, stderr, fprintf, 0);
335 static void set_proc_name(const char *s)
337 #if defined(__linux__) && defined(PR_SET_NAME)
341 name[sizeof(name) - 1] = 0;
342 strncpy(name, s, sizeof(name));
343 /* Could rewrite argv[0] too, but that's a bit more complicated.
344 This simple way is enough for `top'. */
345 prctl(PR_SET_NAME, name);
352 static QEMUBalloonEvent *qemu_balloon_event;
353 void *qemu_balloon_event_opaque;
355 void qemu_add_balloon_handler(QEMUBalloonEvent *func, void *opaque)
357 qemu_balloon_event = func;
358 qemu_balloon_event_opaque = opaque;
361 int qemu_balloon(ram_addr_t target, MonitorCompletion cb, void *opaque)
363 if (qemu_balloon_event) {
364 qemu_balloon_event(qemu_balloon_event_opaque, target, cb, opaque);
371 int qemu_balloon_status(MonitorCompletion cb, void *opaque)
373 if (qemu_balloon_event) {
374 qemu_balloon_event(qemu_balloon_event_opaque, 0, cb, opaque);
382 /***********************************************************/
383 /* real time host monotonic timer */
385 /* compute with 96 bit intermediate result: (a*b)/c */
386 uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
391 #ifdef HOST_WORDS_BIGENDIAN
401 rl = (uint64_t)u.l.low * (uint64_t)b;
402 rh = (uint64_t)u.l.high * (uint64_t)b;
405 res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
409 /***********************************************************/
410 /* host time/date access */
411 void qemu_get_timedate(struct tm *tm, int offset)
418 if (rtc_date_offset == -1) {
422 ret = localtime(&ti);
424 ti -= rtc_date_offset;
428 memcpy(tm, ret, sizeof(struct tm));
431 int qemu_timedate_diff(struct tm *tm)
435 if (rtc_date_offset == -1)
437 seconds = mktimegm(tm);
439 seconds = mktime(tm);
441 seconds = mktimegm(tm) + rtc_date_offset;
443 return seconds - time(NULL);
446 void rtc_change_mon_event(struct tm *tm)
450 data = qobject_from_jsonf("{ 'offset': %d }", qemu_timedate_diff(tm));
451 monitor_protocol_event(QEVENT_RTC_CHANGE, data);
452 qobject_decref(data);
455 static void configure_rtc_date_offset(const char *startdate, int legacy)
457 time_t rtc_start_date;
460 if (!strcmp(startdate, "now") && legacy) {
461 rtc_date_offset = -1;
463 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
471 } else if (sscanf(startdate, "%d-%d-%d",
483 rtc_start_date = mktimegm(&tm);
484 if (rtc_start_date == -1) {
486 fprintf(stderr, "Invalid date format. Valid formats are:\n"
487 "'2006-06-17T16:01:21' or '2006-06-17'\n");
490 rtc_date_offset = time(NULL) - rtc_start_date;
494 static void configure_rtc(QemuOpts *opts)
498 value = qemu_opt_get(opts, "base");
500 if (!strcmp(value, "utc")) {
502 } else if (!strcmp(value, "localtime")) {
505 configure_rtc_date_offset(value, 0);
508 value = qemu_opt_get(opts, "clock");
510 if (!strcmp(value, "host")) {
511 rtc_clock = host_clock;
512 } else if (!strcmp(value, "vm")) {
513 rtc_clock = vm_clock;
515 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
519 #ifdef CONFIG_TARGET_I386
520 value = qemu_opt_get(opts, "driftfix");
522 if (!strcmp(buf, "slew")) {
524 } else if (!strcmp(buf, "none")) {
527 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
535 static void socket_cleanup(void)
540 static int socket_init(void)
545 ret = WSAStartup(MAKEWORD(2,2), &Data);
547 err = WSAGetLastError();
548 fprintf(stderr, "WSAStartup: %d\n", err);
551 atexit(socket_cleanup);
556 /***********************************************************/
557 /* Bluetooth support */
560 static struct HCIInfo *hci_table[MAX_NICS];
562 static struct bt_vlan_s {
563 struct bt_scatternet_s net;
565 struct bt_vlan_s *next;
568 /* find or alloc a new bluetooth "VLAN" */
569 static struct bt_scatternet_s *qemu_find_bt_vlan(int id)
571 struct bt_vlan_s **pvlan, *vlan;
572 for (vlan = first_bt_vlan; vlan != NULL; vlan = vlan->next) {
576 vlan = qemu_mallocz(sizeof(struct bt_vlan_s));
578 pvlan = &first_bt_vlan;
579 while (*pvlan != NULL)
580 pvlan = &(*pvlan)->next;
585 static void null_hci_send(struct HCIInfo *hci, const uint8_t *data, int len)
589 static int null_hci_addr_set(struct HCIInfo *hci, const uint8_t *bd_addr)
594 static struct HCIInfo null_hci = {
595 .cmd_send = null_hci_send,
596 .sco_send = null_hci_send,
597 .acl_send = null_hci_send,
598 .bdaddr_set = null_hci_addr_set,
601 struct HCIInfo *qemu_next_hci(void)
603 if (cur_hci == nb_hcis)
606 return hci_table[cur_hci++];
609 static struct HCIInfo *hci_init(const char *str)
612 struct bt_scatternet_s *vlan = 0;
614 if (!strcmp(str, "null"))
617 else if (!strncmp(str, "host", 4) && (str[4] == '\0' || str[4] == ':'))
619 return bt_host_hci(str[4] ? str + 5 : "hci0");
620 else if (!strncmp(str, "hci", 3)) {
623 if (!strncmp(str + 3, ",vlan=", 6)) {
624 vlan = qemu_find_bt_vlan(strtol(str + 9, &endp, 0));
629 vlan = qemu_find_bt_vlan(0);
631 return bt_new_hci(vlan);
634 fprintf(stderr, "qemu: Unknown bluetooth HCI `%s'.\n", str);
639 static int bt_hci_parse(const char *str)
644 if (nb_hcis >= MAX_NICS) {
645 fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
658 bdaddr.b[5] = 0x56 + nb_hcis;
659 hci->bdaddr_set(hci, bdaddr.b);
661 hci_table[nb_hcis++] = hci;
666 static void bt_vhci_add(int vlan_id)
668 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
671 fprintf(stderr, "qemu: warning: adding a VHCI to "
672 "an empty scatternet %i\n", vlan_id);
674 bt_vhci_init(bt_new_hci(vlan));
677 static struct bt_device_s *bt_device_add(const char *opt)
679 struct bt_scatternet_s *vlan;
681 char *endp = strstr(opt, ",vlan=");
682 int len = (endp ? endp - opt : strlen(opt)) + 1;
685 pstrcpy(devname, MIN(sizeof(devname), len), opt);
688 vlan_id = strtol(endp + 6, &endp, 0);
690 fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
695 vlan = qemu_find_bt_vlan(vlan_id);
698 fprintf(stderr, "qemu: warning: adding a slave device to "
699 "an empty scatternet %i\n", vlan_id);
701 if (!strcmp(devname, "keyboard"))
702 return bt_keyboard_init(vlan);
704 fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
708 static int bt_parse(const char *opt)
710 const char *endp, *p;
713 if (strstart(opt, "hci", &endp)) {
714 if (!*endp || *endp == ',') {
716 if (!strstart(endp, ",vlan=", 0))
719 return bt_hci_parse(opt);
721 } else if (strstart(opt, "vhci", &endp)) {
722 if (!*endp || *endp == ',') {
724 if (strstart(endp, ",vlan=", &p)) {
725 vlan = strtol(p, (char **) &endp, 0);
727 fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
731 fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1);
740 } else if (strstart(opt, "device:", &endp))
741 return !bt_device_add(endp);
743 fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
747 /***********************************************************/
748 /* QEMU Block devices */
750 #define HD_ALIAS "index=%d,media=disk"
751 #define CDROM_ALIAS "index=2,media=cdrom"
752 #define FD_ALIAS "index=%d,if=floppy"
753 #define PFLASH_ALIAS "if=pflash"
754 #define MTD_ALIAS "if=mtd"
755 #define SD_ALIAS "index=0,if=sd"
757 QemuOpts *drive_add(const char *file, const char *fmt, ...)
764 vsnprintf(optstr, sizeof(optstr), fmt, ap);
767 opts = qemu_opts_parse(&qemu_drive_opts, optstr, 0);
769 fprintf(stderr, "%s: huh? duplicate? (%s)\n",
770 __FUNCTION__, optstr);
774 qemu_opt_set(opts, "file", file);
778 DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit)
782 /* seek interface, bus and unit */
784 QTAILQ_FOREACH(dinfo, &drives, next) {
785 if (dinfo->type == type &&
794 DriveInfo *drive_get_by_id(const char *id)
798 QTAILQ_FOREACH(dinfo, &drives, next) {
799 if (strcmp(id, dinfo->id))
806 int drive_get_max_bus(BlockInterfaceType type)
812 QTAILQ_FOREACH(dinfo, &drives, next) {
813 if(dinfo->type == type &&
814 dinfo->bus > max_bus)
815 max_bus = dinfo->bus;
820 const char *drive_get_serial(BlockDriverState *bdrv)
824 QTAILQ_FOREACH(dinfo, &drives, next) {
825 if (dinfo->bdrv == bdrv)
826 return dinfo->serial;
832 BlockInterfaceErrorAction drive_get_on_error(
833 BlockDriverState *bdrv, int is_read)
837 QTAILQ_FOREACH(dinfo, &drives, next) {
838 if (dinfo->bdrv == bdrv)
839 return is_read ? dinfo->on_read_error : dinfo->on_write_error;
842 return is_read ? BLOCK_ERR_REPORT : BLOCK_ERR_STOP_ENOSPC;
845 static void bdrv_format_print(void *opaque, const char *name)
847 fprintf(stderr, " %s", name);
850 void drive_uninit(DriveInfo *dinfo)
852 qemu_opts_del(dinfo->opts);
853 bdrv_delete(dinfo->bdrv);
854 QTAILQ_REMOVE(&drives, dinfo, next);
858 static int parse_block_error_action(const char *buf, int is_read)
860 if (!strcmp(buf, "ignore")) {
861 return BLOCK_ERR_IGNORE;
862 } else if (!is_read && !strcmp(buf, "enospc")) {
863 return BLOCK_ERR_STOP_ENOSPC;
864 } else if (!strcmp(buf, "stop")) {
865 return BLOCK_ERR_STOP_ANY;
866 } else if (!strcmp(buf, "report")) {
867 return BLOCK_ERR_REPORT;
869 fprintf(stderr, "qemu: '%s' invalid %s error action\n",
870 buf, is_read ? "read" : "write");
875 DriveInfo *drive_init(QemuOpts *opts, void *opaque,
879 const char *file = NULL;
882 const char *mediastr = "";
883 BlockInterfaceType type;
884 enum { MEDIA_DISK, MEDIA_CDROM } media;
886 int cyls, heads, secs, translation;
887 BlockDriver *drv = NULL;
888 QEMUMachine *machine = opaque;
895 int on_read_error, on_write_error;
902 translation = BIOS_ATA_TRANSLATION_AUTO;
905 if (machine && machine->use_scsi) {
907 max_devs = MAX_SCSI_DEVS;
908 pstrcpy(devname, sizeof(devname), "scsi");
911 max_devs = MAX_IDE_DEVS;
912 pstrcpy(devname, sizeof(devname), "ide");
916 /* extract parameters */
917 bus_id = qemu_opt_get_number(opts, "bus", 0);
918 unit_id = qemu_opt_get_number(opts, "unit", -1);
919 index = qemu_opt_get_number(opts, "index", -1);
921 cyls = qemu_opt_get_number(opts, "cyls", 0);
922 heads = qemu_opt_get_number(opts, "heads", 0);
923 secs = qemu_opt_get_number(opts, "secs", 0);
925 snapshot = qemu_opt_get_bool(opts, "snapshot", 0);
926 ro = qemu_opt_get_bool(opts, "readonly", 0);
928 file = qemu_opt_get(opts, "file");
929 serial = qemu_opt_get(opts, "serial");
931 if ((buf = qemu_opt_get(opts, "if")) != NULL) {
932 pstrcpy(devname, sizeof(devname), buf);
933 if (!strcmp(buf, "ide")) {
935 max_devs = MAX_IDE_DEVS;
936 } else if (!strcmp(buf, "scsi")) {
938 max_devs = MAX_SCSI_DEVS;
939 } else if (!strcmp(buf, "floppy")) {
942 } else if (!strcmp(buf, "pflash")) {
945 } else if (!strcmp(buf, "mtd")) {
948 } else if (!strcmp(buf, "sd")) {
951 } else if (!strcmp(buf, "virtio")) {
954 } else if (!strcmp(buf, "xen")) {
957 } else if (!strcmp(buf, "none")) {
961 fprintf(stderr, "qemu: unsupported bus type '%s'\n", buf);
966 if (cyls || heads || secs) {
967 if (cyls < 1 || (type == IF_IDE && cyls > 16383)) {
968 fprintf(stderr, "qemu: '%s' invalid physical cyls number\n", buf);
971 if (heads < 1 || (type == IF_IDE && heads > 16)) {
972 fprintf(stderr, "qemu: '%s' invalid physical heads number\n", buf);
975 if (secs < 1 || (type == IF_IDE && secs > 63)) {
976 fprintf(stderr, "qemu: '%s' invalid physical secs number\n", buf);
981 if ((buf = qemu_opt_get(opts, "trans")) != NULL) {
984 "qemu: '%s' trans must be used with cyls,heads and secs\n",
988 if (!strcmp(buf, "none"))
989 translation = BIOS_ATA_TRANSLATION_NONE;
990 else if (!strcmp(buf, "lba"))
991 translation = BIOS_ATA_TRANSLATION_LBA;
992 else if (!strcmp(buf, "auto"))
993 translation = BIOS_ATA_TRANSLATION_AUTO;
995 fprintf(stderr, "qemu: '%s' invalid translation type\n", buf);
1000 if ((buf = qemu_opt_get(opts, "media")) != NULL) {
1001 if (!strcmp(buf, "disk")) {
1003 } else if (!strcmp(buf, "cdrom")) {
1004 if (cyls || secs || heads) {
1006 "qemu: '%s' invalid physical CHS format\n", buf);
1009 media = MEDIA_CDROM;
1011 fprintf(stderr, "qemu: '%s' invalid media\n", buf);
1016 if ((buf = qemu_opt_get(opts, "cache")) != NULL) {
1017 if (!strcmp(buf, "off") || !strcmp(buf, "none"))
1019 else if (!strcmp(buf, "writethrough"))
1021 else if (!strcmp(buf, "writeback"))
1024 fprintf(stderr, "qemu: invalid cache option\n");
1029 #ifdef CONFIG_LINUX_AIO
1030 if ((buf = qemu_opt_get(opts, "aio")) != NULL) {
1031 if (!strcmp(buf, "threads"))
1033 else if (!strcmp(buf, "native"))
1036 fprintf(stderr, "qemu: invalid aio option\n");
1042 if ((buf = qemu_opt_get(opts, "format")) != NULL) {
1043 if (strcmp(buf, "?") == 0) {
1044 fprintf(stderr, "qemu: Supported formats:");
1045 bdrv_iterate_format(bdrv_format_print, NULL);
1046 fprintf(stderr, "\n");
1049 drv = bdrv_find_whitelisted_format(buf);
1051 fprintf(stderr, "qemu: '%s' invalid format\n", buf);
1056 on_write_error = BLOCK_ERR_STOP_ENOSPC;
1057 if ((buf = qemu_opt_get(opts, "werror")) != NULL) {
1058 if (type != IF_IDE && type != IF_SCSI && type != IF_VIRTIO) {
1059 fprintf(stderr, "werror is no supported by this format\n");
1063 on_write_error = parse_block_error_action(buf, 0);
1064 if (on_write_error < 0) {
1069 on_read_error = BLOCK_ERR_REPORT;
1070 if ((buf = qemu_opt_get(opts, "rerror")) != NULL) {
1071 if (type != IF_IDE && type != IF_VIRTIO) {
1072 fprintf(stderr, "rerror is no supported by this format\n");
1076 on_read_error = parse_block_error_action(buf, 1);
1077 if (on_read_error < 0) {
1082 if ((devaddr = qemu_opt_get(opts, "addr")) != NULL) {
1083 if (type != IF_VIRTIO) {
1084 fprintf(stderr, "addr is not supported\n");
1089 /* compute bus and unit according index */
1092 if (bus_id != 0 || unit_id != -1) {
1094 "qemu: index cannot be used with bus and unit\n");
1102 unit_id = index % max_devs;
1103 bus_id = index / max_devs;
1107 /* if user doesn't specify a unit_id,
1108 * try to find the first free
1111 if (unit_id == -1) {
1113 while (drive_get(type, bus_id, unit_id) != NULL) {
1115 if (max_devs && unit_id >= max_devs) {
1116 unit_id -= max_devs;
1124 if (max_devs && unit_id >= max_devs) {
1125 fprintf(stderr, "qemu: unit %d too big (max is %d)\n",
1126 unit_id, max_devs - 1);
1131 * ignore multiple definitions
1134 if (drive_get(type, bus_id, unit_id) != NULL) {
1141 dinfo = qemu_mallocz(sizeof(*dinfo));
1142 if ((buf = qemu_opts_id(opts)) != NULL) {
1143 dinfo->id = qemu_strdup(buf);
1145 /* no id supplied -> create one */
1146 dinfo->id = qemu_mallocz(32);
1147 if (type == IF_IDE || type == IF_SCSI)
1148 mediastr = (media == MEDIA_CDROM) ? "-cd" : "-hd";
1150 snprintf(dinfo->id, 32, "%s%i%s%i",
1151 devname, bus_id, mediastr, unit_id);
1153 snprintf(dinfo->id, 32, "%s%s%i",
1154 devname, mediastr, unit_id);
1156 dinfo->bdrv = bdrv_new(dinfo->id);
1157 dinfo->devaddr = devaddr;
1159 dinfo->bus = bus_id;
1160 dinfo->unit = unit_id;
1161 dinfo->on_read_error = on_read_error;
1162 dinfo->on_write_error = on_write_error;
1165 strncpy(dinfo->serial, serial, sizeof(serial));
1166 QTAILQ_INSERT_TAIL(&drives, dinfo, next);
1176 bdrv_set_geometry_hint(dinfo->bdrv, cyls, heads, secs);
1177 bdrv_set_translation_hint(dinfo->bdrv, translation);
1181 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_CDROM);
1186 /* FIXME: This isn't really a floppy, but it's a reasonable
1189 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_FLOPPY);
1195 /* add virtio block device */
1196 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
1197 qemu_opt_set(opts, "driver", "virtio-blk-pci");
1198 qemu_opt_set(opts, "drive", dinfo->id);
1200 qemu_opt_set(opts, "addr", devaddr);
1211 bdrv_flags |= BDRV_O_SNAPSHOT;
1212 cache = 2; /* always use write-back with snapshot */
1214 if (cache == 0) /* no caching */
1215 bdrv_flags |= BDRV_O_NOCACHE;
1216 else if (cache == 2) /* write-back */
1217 bdrv_flags |= BDRV_O_CACHE_WB;
1220 bdrv_flags |= BDRV_O_NATIVE_AIO;
1222 bdrv_flags &= ~BDRV_O_NATIVE_AIO;
1226 if (type != IF_SCSI && type != IF_VIRTIO && type != IF_FLOPPY) {
1227 fprintf(stderr, "qemu: readonly flag not supported for drive with this interface\n");
1232 * cdrom is read-only. Set it now, after above interface checking
1233 * since readonly attribute not explicitly required, so no error.
1235 if (media == MEDIA_CDROM) {
1238 bdrv_flags |= ro ? 0 : BDRV_O_RDWR;
1240 if (bdrv_open2(dinfo->bdrv, file, bdrv_flags, drv) < 0) {
1241 fprintf(stderr, "qemu: could not open disk image %s: %s\n",
1242 file, strerror(errno));
1246 if (bdrv_key_required(dinfo->bdrv))
1252 static int drive_init_func(QemuOpts *opts, void *opaque)
1254 QEMUMachine *machine = opaque;
1255 int fatal_error = 0;
1257 if (drive_init(opts, machine, &fatal_error) == NULL) {
1264 static int drive_enable_snapshot(QemuOpts *opts, void *opaque)
1266 if (NULL == qemu_opt_get(opts, "snapshot")) {
1267 qemu_opt_set(opts, "snapshot", "on");
1272 void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
1274 boot_set_handler = func;
1275 boot_set_opaque = opaque;
1278 int qemu_boot_set(const char *boot_devices)
1280 if (!boot_set_handler) {
1283 return boot_set_handler(boot_set_opaque, boot_devices);
1286 static int parse_bootdevices(char *devices)
1288 /* We just do some generic consistency checks */
1292 for (p = devices; *p != '\0'; p++) {
1293 /* Allowed boot devices are:
1294 * a-b: floppy disk drives
1295 * c-f: IDE disk drives
1296 * g-m: machine implementation dependant drives
1297 * n-p: network devices
1298 * It's up to each machine implementation to check if the given boot
1299 * devices match the actual hardware implementation and firmware
1302 if (*p < 'a' || *p > 'p') {
1303 fprintf(stderr, "Invalid boot device '%c'\n", *p);
1306 if (bitmap & (1 << (*p - 'a'))) {
1307 fprintf(stderr, "Boot device '%c' was given twice\n", *p);
1310 bitmap |= 1 << (*p - 'a');
1315 static void restore_boot_devices(void *opaque)
1317 char *standard_boot_devices = opaque;
1319 qemu_boot_set(standard_boot_devices);
1321 qemu_unregister_reset(restore_boot_devices, standard_boot_devices);
1322 qemu_free(standard_boot_devices);
1325 static void numa_add(const char *optarg)
1329 unsigned long long value, endvalue;
1332 optarg = get_opt_name(option, 128, optarg, ',') + 1;
1333 if (!strcmp(option, "node")) {
1334 if (get_param_value(option, 128, "nodeid", optarg) == 0) {
1335 nodenr = nb_numa_nodes;
1337 nodenr = strtoull(option, NULL, 10);
1340 if (get_param_value(option, 128, "mem", optarg) == 0) {
1341 node_mem[nodenr] = 0;
1343 value = strtoull(option, &endptr, 0);
1345 case 0: case 'M': case 'm':
1352 node_mem[nodenr] = value;
1354 if (get_param_value(option, 128, "cpus", optarg) == 0) {
1355 node_cpumask[nodenr] = 0;
1357 value = strtoull(option, &endptr, 10);
1360 fprintf(stderr, "only 64 CPUs in NUMA mode supported.\n");
1362 if (*endptr == '-') {
1363 endvalue = strtoull(endptr+1, &endptr, 10);
1364 if (endvalue >= 63) {
1367 "only 63 CPUs in NUMA mode supported.\n");
1369 value = (2ULL << endvalue) - (1ULL << value);
1371 value = 1ULL << value;
1374 node_cpumask[nodenr] = value;
1381 static void smp_parse(const char *optarg)
1383 int smp, sockets = 0, threads = 0, cores = 0;
1387 smp = strtoul(optarg, &endptr, 10);
1388 if (endptr != optarg) {
1389 if (*endptr == ',') {
1393 if (get_param_value(option, 128, "sockets", endptr) != 0)
1394 sockets = strtoull(option, NULL, 10);
1395 if (get_param_value(option, 128, "cores", endptr) != 0)
1396 cores = strtoull(option, NULL, 10);
1397 if (get_param_value(option, 128, "threads", endptr) != 0)
1398 threads = strtoull(option, NULL, 10);
1399 if (get_param_value(option, 128, "maxcpus", endptr) != 0)
1400 max_cpus = strtoull(option, NULL, 10);
1402 /* compute missing values, prefer sockets over cores over threads */
1403 if (smp == 0 || sockets == 0) {
1404 sockets = sockets > 0 ? sockets : 1;
1405 cores = cores > 0 ? cores : 1;
1406 threads = threads > 0 ? threads : 1;
1408 smp = cores * threads * sockets;
1412 threads = threads > 0 ? threads : 1;
1413 cores = smp / (sockets * threads);
1416 threads = smp / (cores * sockets);
1421 smp_cores = cores > 0 ? cores : 1;
1422 smp_threads = threads > 0 ? threads : 1;
1424 max_cpus = smp_cpus;
1427 /***********************************************************/
1430 static int usb_device_add(const char *devname, int is_hotplug)
1433 USBDevice *dev = NULL;
1438 /* drivers with .usbdevice_name entry in USBDeviceInfo */
1439 dev = usbdevice_create(devname);
1443 /* the other ones */
1444 if (strstart(devname, "host:", &p)) {
1445 dev = usb_host_device_open(p);
1446 } else if (!strcmp(devname, "bt") || strstart(devname, "bt:", &p)) {
1447 dev = usb_bt_init(devname[2] ? hci_init(p) :
1448 bt_new_hci(qemu_find_bt_vlan(0)));
1459 static int usb_device_del(const char *devname)
1464 if (strstart(devname, "host:", &p))
1465 return usb_host_device_close(p);
1470 p = strchr(devname, '.');
1473 bus_num = strtoul(devname, NULL, 0);
1474 addr = strtoul(p + 1, NULL, 0);
1476 return usb_device_delete_addr(bus_num, addr);
1479 static int usb_parse(const char *cmdline)
1482 r = usb_device_add(cmdline, 0);
1484 fprintf(stderr, "qemu: could not add USB device '%s'\n", cmdline);
1489 void do_usb_add(Monitor *mon, const QDict *qdict)
1491 const char *devname = qdict_get_str(qdict, "devname");
1492 if (usb_device_add(devname, 1) < 0) {
1493 error_report("could not add USB device '%s'", devname);
1497 void do_usb_del(Monitor *mon, const QDict *qdict)
1499 const char *devname = qdict_get_str(qdict, "devname");
1500 if (usb_device_del(devname) < 0) {
1501 error_report("could not delete USB device '%s'", devname);
1505 /***********************************************************/
1506 /* PCMCIA/Cardbus */
1508 static struct pcmcia_socket_entry_s {
1509 PCMCIASocket *socket;
1510 struct pcmcia_socket_entry_s *next;
1511 } *pcmcia_sockets = 0;
1513 void pcmcia_socket_register(PCMCIASocket *socket)
1515 struct pcmcia_socket_entry_s *entry;
1517 entry = qemu_malloc(sizeof(struct pcmcia_socket_entry_s));
1518 entry->socket = socket;
1519 entry->next = pcmcia_sockets;
1520 pcmcia_sockets = entry;
1523 void pcmcia_socket_unregister(PCMCIASocket *socket)
1525 struct pcmcia_socket_entry_s *entry, **ptr;
1527 ptr = &pcmcia_sockets;
1528 for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
1529 if (entry->socket == socket) {
1535 void pcmcia_info(Monitor *mon)
1537 struct pcmcia_socket_entry_s *iter;
1539 if (!pcmcia_sockets)
1540 monitor_printf(mon, "No PCMCIA sockets\n");
1542 for (iter = pcmcia_sockets; iter; iter = iter->next)
1543 monitor_printf(mon, "%s: %s\n", iter->socket->slot_string,
1544 iter->socket->attached ? iter->socket->card_string :
1548 /***********************************************************/
1551 typedef struct IOHandlerRecord {
1553 IOCanRWHandler *fd_read_poll;
1555 IOHandler *fd_write;
1558 /* temporary data */
1560 struct IOHandlerRecord *next;
1563 static IOHandlerRecord *first_io_handler;
1565 /* XXX: fd_read_poll should be suppressed, but an API change is
1566 necessary in the character devices to suppress fd_can_read(). */
1567 int qemu_set_fd_handler2(int fd,
1568 IOCanRWHandler *fd_read_poll,
1570 IOHandler *fd_write,
1573 IOHandlerRecord **pioh, *ioh;
1575 if (!fd_read && !fd_write) {
1576 pioh = &first_io_handler;
1581 if (ioh->fd == fd) {
1588 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
1592 ioh = qemu_mallocz(sizeof(IOHandlerRecord));
1593 ioh->next = first_io_handler;
1594 first_io_handler = ioh;
1597 ioh->fd_read_poll = fd_read_poll;
1598 ioh->fd_read = fd_read;
1599 ioh->fd_write = fd_write;
1600 ioh->opaque = opaque;
1606 int qemu_set_fd_handler(int fd,
1608 IOHandler *fd_write,
1611 return qemu_set_fd_handler2(fd, NULL, fd_read, fd_write, opaque);
1615 /***********************************************************/
1616 /* Polling handling */
1618 typedef struct PollingEntry {
1621 struct PollingEntry *next;
1624 static PollingEntry *first_polling_entry;
1626 int qemu_add_polling_cb(PollingFunc *func, void *opaque)
1628 PollingEntry **ppe, *pe;
1629 pe = qemu_mallocz(sizeof(PollingEntry));
1631 pe->opaque = opaque;
1632 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next);
1637 void qemu_del_polling_cb(PollingFunc *func, void *opaque)
1639 PollingEntry **ppe, *pe;
1640 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next) {
1642 if (pe->func == func && pe->opaque == opaque) {
1650 /***********************************************************/
1651 /* Wait objects support */
1652 typedef struct WaitObjects {
1654 HANDLE events[MAXIMUM_WAIT_OBJECTS + 1];
1655 WaitObjectFunc *func[MAXIMUM_WAIT_OBJECTS + 1];
1656 void *opaque[MAXIMUM_WAIT_OBJECTS + 1];
1659 static WaitObjects wait_objects = {0};
1661 int qemu_add_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
1663 WaitObjects *w = &wait_objects;
1665 if (w->num >= MAXIMUM_WAIT_OBJECTS)
1667 w->events[w->num] = handle;
1668 w->func[w->num] = func;
1669 w->opaque[w->num] = opaque;
1674 void qemu_del_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
1677 WaitObjects *w = &wait_objects;
1680 for (i = 0; i < w->num; i++) {
1681 if (w->events[i] == handle)
1684 w->events[i] = w->events[i + 1];
1685 w->func[i] = w->func[i + 1];
1686 w->opaque[i] = w->opaque[i + 1];
1694 /***********************************************************/
1695 /* ram save/restore */
1697 #define RAM_SAVE_FLAG_FULL 0x01 /* Obsolete, not used anymore */
1698 #define RAM_SAVE_FLAG_COMPRESS 0x02
1699 #define RAM_SAVE_FLAG_MEM_SIZE 0x04
1700 #define RAM_SAVE_FLAG_PAGE 0x08
1701 #define RAM_SAVE_FLAG_EOS 0x10
1703 static int is_dup_page(uint8_t *page, uint8_t ch)
1705 uint32_t val = ch << 24 | ch << 16 | ch << 8 | ch;
1706 uint32_t *array = (uint32_t *)page;
1709 for (i = 0; i < (TARGET_PAGE_SIZE / 4); i++) {
1710 if (array[i] != val)
1717 static int ram_save_block(QEMUFile *f)
1719 static ram_addr_t current_addr = 0;
1720 ram_addr_t saved_addr = current_addr;
1721 ram_addr_t addr = 0;
1724 while (addr < last_ram_offset) {
1725 if (cpu_physical_memory_get_dirty(current_addr, MIGRATION_DIRTY_FLAG)) {
1728 cpu_physical_memory_reset_dirty(current_addr,
1729 current_addr + TARGET_PAGE_SIZE,
1730 MIGRATION_DIRTY_FLAG);
1732 p = qemu_get_ram_ptr(current_addr);
1734 if (is_dup_page(p, *p)) {
1735 qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_COMPRESS);
1736 qemu_put_byte(f, *p);
1738 qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_PAGE);
1739 qemu_put_buffer(f, p, TARGET_PAGE_SIZE);
1745 addr += TARGET_PAGE_SIZE;
1746 current_addr = (saved_addr + addr) % last_ram_offset;
1752 static uint64_t bytes_transferred;
1754 static ram_addr_t ram_save_remaining(void)
1757 ram_addr_t count = 0;
1759 for (addr = 0; addr < last_ram_offset; addr += TARGET_PAGE_SIZE) {
1760 if (cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG))
1767 uint64_t ram_bytes_remaining(void)
1769 return ram_save_remaining() * TARGET_PAGE_SIZE;
1772 uint64_t ram_bytes_transferred(void)
1774 return bytes_transferred;
1777 uint64_t ram_bytes_total(void)
1779 return last_ram_offset;
1782 static int ram_save_live(Monitor *mon, QEMUFile *f, int stage, void *opaque)
1785 uint64_t bytes_transferred_last;
1787 uint64_t expected_time = 0;
1790 cpu_physical_memory_set_dirty_tracking(0);
1794 if (cpu_physical_sync_dirty_bitmap(0, TARGET_PHYS_ADDR_MAX) != 0) {
1795 qemu_file_set_error(f);
1800 bytes_transferred = 0;
1802 /* Make sure all dirty bits are set */
1803 for (addr = 0; addr < last_ram_offset; addr += TARGET_PAGE_SIZE) {
1804 if (!cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG))
1805 cpu_physical_memory_set_dirty(addr);
1808 /* Enable dirty memory tracking */
1809 cpu_physical_memory_set_dirty_tracking(1);
1811 qemu_put_be64(f, last_ram_offset | RAM_SAVE_FLAG_MEM_SIZE);
1814 bytes_transferred_last = bytes_transferred;
1815 bwidth = qemu_get_clock_ns(rt_clock);
1817 while (!qemu_file_rate_limit(f)) {
1820 ret = ram_save_block(f);
1821 bytes_transferred += ret * TARGET_PAGE_SIZE;
1822 if (ret == 0) /* no more blocks */
1826 bwidth = qemu_get_clock_ns(rt_clock) - bwidth;
1827 bwidth = (bytes_transferred - bytes_transferred_last) / bwidth;
1829 /* if we haven't transferred anything this round, force expected_time to a
1830 * a very high value, but without crashing */
1834 /* try transferring iterative blocks of memory */
1836 /* flush all remaining blocks regardless of rate limiting */
1837 while (ram_save_block(f) != 0) {
1838 bytes_transferred += TARGET_PAGE_SIZE;
1840 cpu_physical_memory_set_dirty_tracking(0);
1843 qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
1845 expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth;
1847 return (stage == 2) && (expected_time <= migrate_max_downtime());
1850 static int ram_load(QEMUFile *f, void *opaque, int version_id)
1855 if (version_id != 3)
1859 addr = qemu_get_be64(f);
1861 flags = addr & ~TARGET_PAGE_MASK;
1862 addr &= TARGET_PAGE_MASK;
1864 if (flags & RAM_SAVE_FLAG_MEM_SIZE) {
1865 if (addr != last_ram_offset)
1869 if (flags & RAM_SAVE_FLAG_COMPRESS) {
1870 uint8_t ch = qemu_get_byte(f);
1871 memset(qemu_get_ram_ptr(addr), ch, TARGET_PAGE_SIZE);
1874 (!kvm_enabled() || kvm_has_sync_mmu())) {
1875 madvise(qemu_get_ram_ptr(addr), TARGET_PAGE_SIZE, MADV_DONTNEED);
1878 } else if (flags & RAM_SAVE_FLAG_PAGE) {
1879 qemu_get_buffer(f, qemu_get_ram_ptr(addr), TARGET_PAGE_SIZE);
1881 if (qemu_file_has_error(f)) {
1884 } while (!(flags & RAM_SAVE_FLAG_EOS));
1889 void qemu_service_io(void)
1891 qemu_notify_event();
1894 /***********************************************************/
1895 /* machine registration */
1897 static QEMUMachine *first_machine = NULL;
1898 QEMUMachine *current_machine = NULL;
1900 int qemu_register_machine(QEMUMachine *m)
1903 pm = &first_machine;
1911 static QEMUMachine *find_machine(const char *name)
1915 for(m = first_machine; m != NULL; m = m->next) {
1916 if (!strcmp(m->name, name))
1918 if (m->alias && !strcmp(m->alias, name))
1924 static QEMUMachine *find_default_machine(void)
1928 for(m = first_machine; m != NULL; m = m->next) {
1929 if (m->is_default) {
1936 /***********************************************************/
1937 /* main execution loop */
1939 static void gui_update(void *opaque)
1941 uint64_t interval = GUI_REFRESH_INTERVAL;
1942 DisplayState *ds = opaque;
1943 DisplayChangeListener *dcl = ds->listeners;
1945 qemu_flush_coalesced_mmio_buffer();
1948 while (dcl != NULL) {
1949 if (dcl->gui_timer_interval &&
1950 dcl->gui_timer_interval < interval)
1951 interval = dcl->gui_timer_interval;
1954 qemu_mod_timer(ds->gui_timer, interval + qemu_get_clock(rt_clock));
1957 static void nographic_update(void *opaque)
1959 uint64_t interval = GUI_REFRESH_INTERVAL;
1961 qemu_flush_coalesced_mmio_buffer();
1962 qemu_mod_timer(nographic_timer, interval + qemu_get_clock(rt_clock));
1965 void cpu_synchronize_all_states(void)
1969 for (cpu = first_cpu; cpu; cpu = cpu->next_cpu) {
1970 cpu_synchronize_state(cpu);
1974 void cpu_synchronize_all_post_reset(void)
1978 for (cpu = first_cpu; cpu; cpu = cpu->next_cpu) {
1979 cpu_synchronize_post_reset(cpu);
1983 void cpu_synchronize_all_post_init(void)
1987 for (cpu = first_cpu; cpu; cpu = cpu->next_cpu) {
1988 cpu_synchronize_post_init(cpu);
1992 struct vm_change_state_entry {
1993 VMChangeStateHandler *cb;
1995 QLIST_ENTRY (vm_change_state_entry) entries;
1998 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
2000 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
2003 VMChangeStateEntry *e;
2005 e = qemu_mallocz(sizeof (*e));
2009 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
2013 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
2015 QLIST_REMOVE (e, entries);
2019 static void vm_state_notify(int running, int reason)
2021 VMChangeStateEntry *e;
2023 for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
2024 e->cb(e->opaque, running, reason);
2028 static void resume_all_vcpus(void);
2029 static void pause_all_vcpus(void);
2036 vm_state_notify(1, 0);
2041 /* reset/shutdown handler */
2043 typedef struct QEMUResetEntry {
2044 QTAILQ_ENTRY(QEMUResetEntry) entry;
2045 QEMUResetHandler *func;
2049 static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
2050 QTAILQ_HEAD_INITIALIZER(reset_handlers);
2051 static int reset_requested;
2052 static int shutdown_requested;
2053 static int powerdown_requested;
2054 static int debug_requested;
2055 static int vmstop_requested;
2057 int qemu_shutdown_requested(void)
2059 int r = shutdown_requested;
2060 shutdown_requested = 0;
2064 int qemu_reset_requested(void)
2066 int r = reset_requested;
2067 reset_requested = 0;
2071 int qemu_powerdown_requested(void)
2073 int r = powerdown_requested;
2074 powerdown_requested = 0;
2078 static int qemu_debug_requested(void)
2080 int r = debug_requested;
2081 debug_requested = 0;
2085 static int qemu_vmstop_requested(void)
2087 int r = vmstop_requested;
2088 vmstop_requested = 0;
2092 static void do_vm_stop(int reason)
2095 cpu_disable_ticks();
2098 vm_state_notify(0, reason);
2099 monitor_protocol_event(QEVENT_STOP, NULL);
2103 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
2105 QEMUResetEntry *re = qemu_mallocz(sizeof(QEMUResetEntry));
2108 re->opaque = opaque;
2109 QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
2112 void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
2116 QTAILQ_FOREACH(re, &reset_handlers, entry) {
2117 if (re->func == func && re->opaque == opaque) {
2118 QTAILQ_REMOVE(&reset_handlers, re, entry);
2125 void qemu_system_reset(void)
2127 QEMUResetEntry *re, *nre;
2129 /* reset all devices */
2130 QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
2131 re->func(re->opaque);
2133 monitor_protocol_event(QEVENT_RESET, NULL);
2134 cpu_synchronize_all_post_reset();
2137 void qemu_system_reset_request(void)
2140 shutdown_requested = 1;
2142 reset_requested = 1;
2144 qemu_notify_event();
2147 void qemu_system_shutdown_request(void)
2149 shutdown_requested = 1;
2150 qemu_notify_event();
2153 void qemu_system_powerdown_request(void)
2155 powerdown_requested = 1;
2156 qemu_notify_event();
2159 static int cpu_can_run(CPUState *env)
2170 static int cpu_has_work(CPUState *env)
2178 if (qemu_cpu_has_work(env))
2183 static int tcg_has_work(void)
2187 for (env = first_cpu; env != NULL; env = env->next_cpu)
2188 if (cpu_has_work(env))
2194 static int io_thread_fd = -1;
2196 static void qemu_event_increment(void)
2198 /* Write 8 bytes to be compatible with eventfd. */
2199 static uint64_t val = 1;
2202 if (io_thread_fd == -1)
2206 ret = write(io_thread_fd, &val, sizeof(val));
2207 } while (ret < 0 && errno == EINTR);
2209 /* EAGAIN is fine, a read must be pending. */
2210 if (ret < 0 && errno != EAGAIN) {
2211 fprintf(stderr, "qemu_event_increment: write() filed: %s\n",
2217 static void qemu_event_read(void *opaque)
2219 int fd = (unsigned long)opaque;
2223 /* Drain the notify pipe. For eventfd, only 8 bytes will be read. */
2225 len = read(fd, buffer, sizeof(buffer));
2226 } while ((len == -1 && errno == EINTR) || len == sizeof(buffer));
2229 static int qemu_event_init(void)
2234 err = qemu_eventfd(fds);
2238 err = fcntl_setfl(fds[0], O_NONBLOCK);
2242 err = fcntl_setfl(fds[1], O_NONBLOCK);
2246 qemu_set_fd_handler2(fds[0], NULL, qemu_event_read, NULL,
2247 (void *)(unsigned long)fds[0]);
2249 io_thread_fd = fds[1];
2258 HANDLE qemu_event_handle;
2260 static void dummy_event_handler(void *opaque)
2264 static int qemu_event_init(void)
2266 qemu_event_handle = CreateEvent(NULL, FALSE, FALSE, NULL);
2267 if (!qemu_event_handle) {
2268 fprintf(stderr, "Failed CreateEvent: %ld\n", GetLastError());
2271 qemu_add_wait_object(qemu_event_handle, dummy_event_handler, NULL);
2275 static void qemu_event_increment(void)
2277 if (!SetEvent(qemu_event_handle)) {
2278 fprintf(stderr, "qemu_event_increment: SetEvent failed: %ld\n",
2285 #ifndef CONFIG_IOTHREAD
2286 static int qemu_init_main_loop(void)
2288 return qemu_event_init();
2291 void qemu_init_vcpu(void *_env)
2293 CPUState *env = _env;
2295 env->nr_cores = smp_cores;
2296 env->nr_threads = smp_threads;
2302 int qemu_cpu_self(void *env)
2307 static void resume_all_vcpus(void)
2311 static void pause_all_vcpus(void)
2315 void qemu_cpu_kick(void *env)
2320 void qemu_notify_event(void)
2322 CPUState *env = cpu_single_env;
2324 qemu_event_increment ();
2328 if (next_cpu && env != next_cpu) {
2333 void qemu_mutex_lock_iothread(void) {}
2334 void qemu_mutex_unlock_iothread(void) {}
2336 void vm_stop(int reason)
2341 #else /* CONFIG_IOTHREAD */
2343 #include "qemu-thread.h"
2345 QemuMutex qemu_global_mutex;
2346 static QemuMutex qemu_fair_mutex;
2348 static QemuThread io_thread;
2350 static QemuThread *tcg_cpu_thread;
2351 static QemuCond *tcg_halt_cond;
2353 static int qemu_system_ready;
2355 static QemuCond qemu_cpu_cond;
2357 static QemuCond qemu_system_cond;
2358 static QemuCond qemu_pause_cond;
2360 static void tcg_block_io_signals(void);
2361 static void kvm_block_io_signals(CPUState *env);
2362 static void unblock_io_signals(void);
2364 static int qemu_init_main_loop(void)
2368 ret = qemu_event_init();
2372 qemu_cond_init(&qemu_pause_cond);
2373 qemu_mutex_init(&qemu_fair_mutex);
2374 qemu_mutex_init(&qemu_global_mutex);
2375 qemu_mutex_lock(&qemu_global_mutex);
2377 unblock_io_signals();
2378 qemu_thread_self(&io_thread);
2383 static void qemu_wait_io_event_common(CPUState *env)
2388 qemu_cond_signal(&qemu_pause_cond);
2392 static void qemu_wait_io_event(CPUState *env)
2394 while (!tcg_has_work())
2395 qemu_cond_timedwait(env->halt_cond, &qemu_global_mutex, 1000);
2397 qemu_mutex_unlock(&qemu_global_mutex);
2400 * Users of qemu_global_mutex can be starved, having no chance
2401 * to acquire it since this path will get to it first.
2402 * So use another lock to provide fairness.
2404 qemu_mutex_lock(&qemu_fair_mutex);
2405 qemu_mutex_unlock(&qemu_fair_mutex);
2407 qemu_mutex_lock(&qemu_global_mutex);
2408 qemu_wait_io_event_common(env);
2411 static void qemu_kvm_eat_signal(CPUState *env, int timeout)
2418 ts.tv_sec = timeout / 1000;
2419 ts.tv_nsec = (timeout % 1000) * 1000000;
2421 sigemptyset(&waitset);
2422 sigaddset(&waitset, SIG_IPI);
2424 qemu_mutex_unlock(&qemu_global_mutex);
2425 r = sigtimedwait(&waitset, &siginfo, &ts);
2427 qemu_mutex_lock(&qemu_global_mutex);
2429 if (r == -1 && !(e == EAGAIN || e == EINTR)) {
2430 fprintf(stderr, "sigtimedwait: %s\n", strerror(e));
2435 static void qemu_kvm_wait_io_event(CPUState *env)
2437 while (!cpu_has_work(env))
2438 qemu_cond_timedwait(env->halt_cond, &qemu_global_mutex, 1000);
2440 qemu_kvm_eat_signal(env, 0);
2441 qemu_wait_io_event_common(env);
2444 static int qemu_cpu_exec(CPUState *env);
2446 static void *kvm_cpu_thread_fn(void *arg)
2448 CPUState *env = arg;
2450 qemu_thread_self(env->thread);
2454 kvm_block_io_signals(env);
2456 /* signal CPU creation */
2457 qemu_mutex_lock(&qemu_global_mutex);
2459 qemu_cond_signal(&qemu_cpu_cond);
2461 /* and wait for machine initialization */
2462 while (!qemu_system_ready)
2463 qemu_cond_timedwait(&qemu_system_cond, &qemu_global_mutex, 100);
2466 if (cpu_can_run(env))
2468 qemu_kvm_wait_io_event(env);
2474 static bool tcg_cpu_exec(void);
2476 static void *tcg_cpu_thread_fn(void *arg)
2478 CPUState *env = arg;
2480 tcg_block_io_signals();
2481 qemu_thread_self(env->thread);
2483 /* signal CPU creation */
2484 qemu_mutex_lock(&qemu_global_mutex);
2485 for (env = first_cpu; env != NULL; env = env->next_cpu)
2487 qemu_cond_signal(&qemu_cpu_cond);
2489 /* and wait for machine initialization */
2490 while (!qemu_system_ready)
2491 qemu_cond_timedwait(&qemu_system_cond, &qemu_global_mutex, 100);
2495 qemu_wait_io_event(cur_cpu);
2501 void qemu_cpu_kick(void *_env)
2503 CPUState *env = _env;
2504 qemu_cond_broadcast(env->halt_cond);
2506 qemu_thread_signal(env->thread, SIG_IPI);
2509 int qemu_cpu_self(void *_env)
2511 CPUState *env = _env;
2514 qemu_thread_self(&this);
2516 return qemu_thread_equal(&this, env->thread);
2519 static void cpu_signal(int sig)
2522 cpu_exit(cpu_single_env);
2525 static void tcg_block_io_signals(void)
2528 struct sigaction sigact;
2531 sigaddset(&set, SIGUSR2);
2532 sigaddset(&set, SIGIO);
2533 sigaddset(&set, SIGALRM);
2534 sigaddset(&set, SIGCHLD);
2535 pthread_sigmask(SIG_BLOCK, &set, NULL);
2538 sigaddset(&set, SIG_IPI);
2539 pthread_sigmask(SIG_UNBLOCK, &set, NULL);
2541 memset(&sigact, 0, sizeof(sigact));
2542 sigact.sa_handler = cpu_signal;
2543 sigaction(SIG_IPI, &sigact, NULL);
2546 static void dummy_signal(int sig)
2550 static void kvm_block_io_signals(CPUState *env)
2554 struct sigaction sigact;
2557 sigaddset(&set, SIGUSR2);
2558 sigaddset(&set, SIGIO);
2559 sigaddset(&set, SIGALRM);
2560 sigaddset(&set, SIGCHLD);
2561 sigaddset(&set, SIG_IPI);
2562 pthread_sigmask(SIG_BLOCK, &set, NULL);
2564 pthread_sigmask(SIG_BLOCK, NULL, &set);
2565 sigdelset(&set, SIG_IPI);
2567 memset(&sigact, 0, sizeof(sigact));
2568 sigact.sa_handler = dummy_signal;
2569 sigaction(SIG_IPI, &sigact, NULL);
2571 r = kvm_set_signal_mask(env, &set);
2573 fprintf(stderr, "kvm_set_signal_mask: %s\n", strerror(r));
2578 static void unblock_io_signals(void)
2583 sigaddset(&set, SIGUSR2);
2584 sigaddset(&set, SIGIO);
2585 sigaddset(&set, SIGALRM);
2586 pthread_sigmask(SIG_UNBLOCK, &set, NULL);
2589 sigaddset(&set, SIG_IPI);
2590 pthread_sigmask(SIG_BLOCK, &set, NULL);
2593 static void qemu_signal_lock(unsigned int msecs)
2595 qemu_mutex_lock(&qemu_fair_mutex);
2597 while (qemu_mutex_trylock(&qemu_global_mutex)) {
2598 qemu_thread_signal(tcg_cpu_thread, SIG_IPI);
2599 if (!qemu_mutex_timedlock(&qemu_global_mutex, msecs))
2602 qemu_mutex_unlock(&qemu_fair_mutex);
2605 void qemu_mutex_lock_iothread(void)
2607 if (kvm_enabled()) {
2608 qemu_mutex_lock(&qemu_fair_mutex);
2609 qemu_mutex_lock(&qemu_global_mutex);
2610 qemu_mutex_unlock(&qemu_fair_mutex);
2612 qemu_signal_lock(100);
2615 void qemu_mutex_unlock_iothread(void)
2617 qemu_mutex_unlock(&qemu_global_mutex);
2620 static int all_vcpus_paused(void)
2622 CPUState *penv = first_cpu;
2627 penv = (CPUState *)penv->next_cpu;
2633 static void pause_all_vcpus(void)
2635 CPUState *penv = first_cpu;
2639 qemu_thread_signal(penv->thread, SIG_IPI);
2640 qemu_cpu_kick(penv);
2641 penv = (CPUState *)penv->next_cpu;
2644 while (!all_vcpus_paused()) {
2645 qemu_cond_timedwait(&qemu_pause_cond, &qemu_global_mutex, 100);
2648 qemu_thread_signal(penv->thread, SIG_IPI);
2649 penv = (CPUState *)penv->next_cpu;
2654 static void resume_all_vcpus(void)
2656 CPUState *penv = first_cpu;
2661 qemu_thread_signal(penv->thread, SIG_IPI);
2662 qemu_cpu_kick(penv);
2663 penv = (CPUState *)penv->next_cpu;
2667 static void tcg_init_vcpu(void *_env)
2669 CPUState *env = _env;
2670 /* share a single thread for all cpus with TCG */
2671 if (!tcg_cpu_thread) {
2672 env->thread = qemu_mallocz(sizeof(QemuThread));
2673 env->halt_cond = qemu_mallocz(sizeof(QemuCond));
2674 qemu_cond_init(env->halt_cond);
2675 qemu_thread_create(env->thread, tcg_cpu_thread_fn, env);
2676 while (env->created == 0)
2677 qemu_cond_timedwait(&qemu_cpu_cond, &qemu_global_mutex, 100);
2678 tcg_cpu_thread = env->thread;
2679 tcg_halt_cond = env->halt_cond;
2681 env->thread = tcg_cpu_thread;
2682 env->halt_cond = tcg_halt_cond;
2686 static void kvm_start_vcpu(CPUState *env)
2688 env->thread = qemu_mallocz(sizeof(QemuThread));
2689 env->halt_cond = qemu_mallocz(sizeof(QemuCond));
2690 qemu_cond_init(env->halt_cond);
2691 qemu_thread_create(env->thread, kvm_cpu_thread_fn, env);
2692 while (env->created == 0)
2693 qemu_cond_timedwait(&qemu_cpu_cond, &qemu_global_mutex, 100);
2696 void qemu_init_vcpu(void *_env)
2698 CPUState *env = _env;
2700 env->nr_cores = smp_cores;
2701 env->nr_threads = smp_threads;
2703 kvm_start_vcpu(env);
2708 void qemu_notify_event(void)
2710 qemu_event_increment();
2713 static void qemu_system_vmstop_request(int reason)
2715 vmstop_requested = reason;
2716 qemu_notify_event();
2719 void vm_stop(int reason)
2722 qemu_thread_self(&me);
2724 if (!qemu_thread_equal(&me, &io_thread)) {
2725 qemu_system_vmstop_request(reason);
2727 * FIXME: should not return to device code in case
2728 * vm_stop() has been requested.
2730 if (cpu_single_env) {
2731 cpu_exit(cpu_single_env);
2732 cpu_single_env->stop = 1;
2743 static void host_main_loop_wait(int *timeout)
2749 /* XXX: need to suppress polling by better using win32 events */
2751 for(pe = first_polling_entry; pe != NULL; pe = pe->next) {
2752 ret |= pe->func(pe->opaque);
2756 WaitObjects *w = &wait_objects;
2758 ret = WaitForMultipleObjects(w->num, w->events, FALSE, *timeout);
2759 if (WAIT_OBJECT_0 + 0 <= ret && ret <= WAIT_OBJECT_0 + w->num - 1) {
2760 if (w->func[ret - WAIT_OBJECT_0])
2761 w->func[ret - WAIT_OBJECT_0](w->opaque[ret - WAIT_OBJECT_0]);
2763 /* Check for additional signaled events */
2764 for(i = (ret - WAIT_OBJECT_0 + 1); i < w->num; i++) {
2766 /* Check if event is signaled */
2767 ret2 = WaitForSingleObject(w->events[i], 0);
2768 if(ret2 == WAIT_OBJECT_0) {
2770 w->func[i](w->opaque[i]);
2771 } else if (ret2 == WAIT_TIMEOUT) {
2773 err = GetLastError();
2774 fprintf(stderr, "WaitForSingleObject error %d %d\n", i, err);
2777 } else if (ret == WAIT_TIMEOUT) {
2779 err = GetLastError();
2780 fprintf(stderr, "WaitForMultipleObjects error %d %d\n", ret, err);
2787 static void host_main_loop_wait(int *timeout)
2792 void main_loop_wait(int nonblocking)
2794 IOHandlerRecord *ioh;
2795 fd_set rfds, wfds, xfds;
2803 timeout = qemu_calculate_timeout();
2804 qemu_bh_update_timeout(&timeout);
2807 host_main_loop_wait(&timeout);
2809 /* poll any events */
2810 /* XXX: separate device handlers from system ones */
2815 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
2819 (!ioh->fd_read_poll ||
2820 ioh->fd_read_poll(ioh->opaque) != 0)) {
2821 FD_SET(ioh->fd, &rfds);
2825 if (ioh->fd_write) {
2826 FD_SET(ioh->fd, &wfds);
2832 tv.tv_sec = timeout / 1000;
2833 tv.tv_usec = (timeout % 1000) * 1000;
2835 slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
2837 qemu_mutex_unlock_iothread();
2838 ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
2839 qemu_mutex_lock_iothread();
2841 IOHandlerRecord **pioh;
2843 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
2844 if (!ioh->deleted && ioh->fd_read && FD_ISSET(ioh->fd, &rfds)) {
2845 ioh->fd_read(ioh->opaque);
2847 if (!ioh->deleted && ioh->fd_write && FD_ISSET(ioh->fd, &wfds)) {
2848 ioh->fd_write(ioh->opaque);
2852 /* remove deleted IO handlers */
2853 pioh = &first_io_handler;
2864 slirp_select_poll(&rfds, &wfds, &xfds, (ret < 0));
2866 qemu_run_all_timers();
2868 /* Check bottom-halves last in case any of the earlier events triggered
2874 static int qemu_cpu_exec(CPUState *env)
2877 #ifdef CONFIG_PROFILER
2881 #ifdef CONFIG_PROFILER
2882 ti = profile_getclock();
2887 qemu_icount -= (env->icount_decr.u16.low + env->icount_extra);
2888 env->icount_decr.u16.low = 0;
2889 env->icount_extra = 0;
2890 count = qemu_icount_round (qemu_next_deadline());
2891 qemu_icount += count;
2892 decr = (count > 0xffff) ? 0xffff : count;
2894 env->icount_decr.u16.low = decr;
2895 env->icount_extra = count;
2897 ret = cpu_exec(env);
2898 #ifdef CONFIG_PROFILER
2899 qemu_time += profile_getclock() - ti;
2902 /* Fold pending instructions back into the
2903 instruction counter, and clear the interrupt flag. */
2904 qemu_icount -= (env->icount_decr.u16.low
2905 + env->icount_extra);
2906 env->icount_decr.u32 = 0;
2907 env->icount_extra = 0;
2912 static bool tcg_cpu_exec(void)
2916 if (next_cpu == NULL)
2917 next_cpu = first_cpu;
2918 for (; next_cpu != NULL; next_cpu = next_cpu->next_cpu) {
2919 CPUState *env = cur_cpu = next_cpu;
2921 qemu_clock_enable(vm_clock,
2922 (cur_cpu->singlestep_enabled & SSTEP_NOTIMER) == 0);
2924 if (qemu_alarm_pending())
2926 if (cpu_can_run(env))
2927 ret = qemu_cpu_exec(env);
2931 if (ret == EXCP_DEBUG) {
2932 gdb_set_stop_cpu(env);
2933 debug_requested = 1;
2937 return tcg_has_work();
2940 static int vm_can_run(void)
2942 if (powerdown_requested)
2944 if (reset_requested)
2946 if (shutdown_requested)
2948 if (debug_requested)
2953 qemu_irq qemu_system_powerdown;
2955 static void main_loop(void)
2959 #ifdef CONFIG_IOTHREAD
2960 qemu_system_ready = 1;
2961 qemu_cond_broadcast(&qemu_system_cond);
2966 bool nonblocking = false;
2967 #ifdef CONFIG_PROFILER
2970 #ifndef CONFIG_IOTHREAD
2971 nonblocking = tcg_cpu_exec();
2973 #ifdef CONFIG_PROFILER
2974 ti = profile_getclock();
2976 main_loop_wait(nonblocking);
2977 #ifdef CONFIG_PROFILER
2978 dev_time += profile_getclock() - ti;
2980 } while (vm_can_run());
2982 if (qemu_debug_requested()) {
2983 vm_stop(EXCP_DEBUG);
2985 if (qemu_shutdown_requested()) {
2986 monitor_protocol_event(QEVENT_SHUTDOWN, NULL);
2993 if (qemu_reset_requested()) {
2995 qemu_system_reset();
2998 if (qemu_powerdown_requested()) {
2999 monitor_protocol_event(QEVENT_POWERDOWN, NULL);
3000 qemu_irq_raise(qemu_system_powerdown);
3002 if ((r = qemu_vmstop_requested())) {
3009 static void version(void)
3011 printf("QEMU PC emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
3014 static void help(int exitcode)
3016 const char *options_help =
3017 #define DEF(option, opt_arg, opt_enum, opt_help) \
3019 #define DEFHEADING(text) stringify(text) "\n"
3020 #include "qemu-options.h"
3026 printf("usage: %s [options] [disk_image]\n"
3028 "'disk_image' is a raw hard image image for IDE hard disk 0\n"
3031 "During emulation, the following keys are useful:\n"
3032 "ctrl-alt-f toggle full screen\n"
3033 "ctrl-alt-n switch to virtual console 'n'\n"
3034 "ctrl-alt toggle mouse and keyboard grab\n"
3036 "When using -nographic, press 'ctrl-a h' to get some help.\n",
3042 #define HAS_ARG 0x0001
3045 #define DEF(option, opt_arg, opt_enum, opt_help) \
3047 #define DEFHEADING(text)
3048 #include "qemu-options.h"
3054 typedef struct QEMUOption {
3060 static const QEMUOption qemu_options[] = {
3061 { "h", 0, QEMU_OPTION_h },
3062 #define DEF(option, opt_arg, opt_enum, opt_help) \
3063 { option, opt_arg, opt_enum },
3064 #define DEFHEADING(text)
3065 #include "qemu-options.h"
3073 struct soundhw soundhw[] = {
3074 #ifdef HAS_AUDIO_CHOICE
3075 #if defined(TARGET_I386) || defined(TARGET_MIPS)
3081 { .init_isa = pcspk_audio_init }
3088 "Creative Sound Blaster 16",
3091 { .init_isa = SB16_init }
3095 #ifdef CONFIG_CS4231A
3101 { .init_isa = cs4231a_init }
3109 "Yamaha YMF262 (OPL3)",
3111 "Yamaha YM3812 (OPL2)",
3115 { .init_isa = Adlib_init }
3122 "Gravis Ultrasound GF1",
3125 { .init_isa = GUS_init }
3132 "Intel 82801AA AC97 Audio",
3135 { .init_pci = ac97_init }
3139 #ifdef CONFIG_ES1370
3142 "ENSONIQ AudioPCI ES1370",
3145 { .init_pci = es1370_init }
3149 #endif /* HAS_AUDIO_CHOICE */
3151 { NULL, NULL, 0, 0, { NULL } }
3154 static void select_soundhw (const char *optarg)
3158 if (*optarg == '?') {
3161 printf ("Valid sound card names (comma separated):\n");
3162 for (c = soundhw; c->name; ++c) {
3163 printf ("%-11s %s\n", c->name, c->descr);
3165 printf ("\n-soundhw all will enable all of the above\n");
3166 exit (*optarg != '?');
3174 if (!strcmp (optarg, "all")) {
3175 for (c = soundhw; c->name; ++c) {
3183 e = strchr (p, ',');
3184 l = !e ? strlen (p) : (size_t) (e - p);
3186 for (c = soundhw; c->name; ++c) {
3187 if (!strncmp (c->name, p, l) && !c->name[l]) {
3196 "Unknown sound card name (too big to show)\n");
3199 fprintf (stderr, "Unknown sound card name `%.*s'\n",
3204 p += l + (e != NULL);
3208 goto show_valid_cards;
3213 static void select_vgahw (const char *p)
3218 vga_interface_type = VGA_NONE;
3219 if (strstart(p, "std", &opts)) {
3220 vga_interface_type = VGA_STD;
3221 } else if (strstart(p, "cirrus", &opts)) {
3222 vga_interface_type = VGA_CIRRUS;
3223 } else if (strstart(p, "vmware", &opts)) {
3224 vga_interface_type = VGA_VMWARE;
3225 } else if (strstart(p, "xenfb", &opts)) {
3226 vga_interface_type = VGA_XENFB;
3227 } else if (!strstart(p, "none", &opts)) {
3229 fprintf(stderr, "Unknown vga type: %s\n", p);
3233 const char *nextopt;
3235 if (strstart(opts, ",retrace=", &nextopt)) {
3237 if (strstart(opts, "dumb", &nextopt))
3238 vga_retrace_method = VGA_RETRACE_DUMB;
3239 else if (strstart(opts, "precise", &nextopt))
3240 vga_retrace_method = VGA_RETRACE_PRECISE;
3241 else goto invalid_vga;
3242 } else goto invalid_vga;
3248 static int balloon_parse(const char *arg)
3252 if (strcmp(arg, "none") == 0) {
3256 if (!strncmp(arg, "virtio", 6)) {
3257 if (arg[6] == ',') {
3258 /* have params -> parse them */
3259 opts = qemu_opts_parse(&qemu_device_opts, arg+7, 0);
3263 /* create empty opts */
3264 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
3266 qemu_opt_set(opts, "driver", "virtio-balloon-pci");
3275 static BOOL WINAPI qemu_ctrl_handler(DWORD type)
3277 exit(STATUS_CONTROL_C_EXIT);
3282 int qemu_uuid_parse(const char *str, uint8_t *uuid)
3286 if(strlen(str) != 36)
3289 ret = sscanf(str, UUID_FMT, &uuid[0], &uuid[1], &uuid[2], &uuid[3],
3290 &uuid[4], &uuid[5], &uuid[6], &uuid[7], &uuid[8], &uuid[9],
3291 &uuid[10], &uuid[11], &uuid[12], &uuid[13], &uuid[14], &uuid[15]);
3297 smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 16, uuid);
3305 static void termsig_handler(int signal)
3307 qemu_system_shutdown_request();
3310 static void sigchld_handler(int signal)
3312 waitpid(-1, NULL, WNOHANG);
3315 static void sighandler_setup(void)
3317 struct sigaction act;
3319 memset(&act, 0, sizeof(act));
3320 act.sa_handler = termsig_handler;
3321 sigaction(SIGINT, &act, NULL);
3322 sigaction(SIGHUP, &act, NULL);
3323 sigaction(SIGTERM, &act, NULL);
3325 act.sa_handler = sigchld_handler;
3326 act.sa_flags = SA_NOCLDSTOP;
3327 sigaction(SIGCHLD, &act, NULL);
3333 /* Look for support files in the same directory as the executable. */
3334 static char *find_datadir(const char *argv0)
3340 len = GetModuleFileName(NULL, buf, sizeof(buf) - 1);
3347 while (p != buf && *p != '\\')
3350 if (access(buf, R_OK) == 0) {
3351 return qemu_strdup(buf);
3357 /* Find a likely location for support files using the location of the binary.
3358 For installed binaries this will be "$bindir/../share/qemu". When
3359 running from the build tree this will be "$bindir/../pc-bios". */
3360 #define SHARE_SUFFIX "/share/qemu"
3361 #define BUILD_SUFFIX "/pc-bios"
3362 static char *find_datadir(const char *argv0)
3370 #if defined(__linux__)
3373 len = readlink("/proc/self/exe", buf, sizeof(buf) - 1);
3379 #elif defined(__FreeBSD__)
3382 len = readlink("/proc/curproc/file", buf, sizeof(buf) - 1);
3389 /* If we don't have any way of figuring out the actual executable
3390 location then try argv[0]. */
3392 p = realpath(argv0, buf);
3400 max_len = strlen(dir) +
3401 MAX(strlen(SHARE_SUFFIX), strlen(BUILD_SUFFIX)) + 1;
3402 res = qemu_mallocz(max_len);
3403 snprintf(res, max_len, "%s%s", dir, SHARE_SUFFIX);
3404 if (access(res, R_OK)) {
3405 snprintf(res, max_len, "%s%s", dir, BUILD_SUFFIX);
3406 if (access(res, R_OK)) {
3418 char *qemu_find_file(int type, const char *name)
3424 /* If name contains path separators then try it as a straight path. */
3425 if ((strchr(name, '/') || strchr(name, '\\'))
3426 && access(name, R_OK) == 0) {
3427 return qemu_strdup(name);
3430 case QEMU_FILE_TYPE_BIOS:
3433 case QEMU_FILE_TYPE_KEYMAP:
3434 subdir = "keymaps/";
3439 len = strlen(data_dir) + strlen(name) + strlen(subdir) + 2;
3440 buf = qemu_mallocz(len);
3441 snprintf(buf, len, "%s/%s%s", data_dir, subdir, name);
3442 if (access(buf, R_OK)) {
3449 static int device_help_func(QemuOpts *opts, void *opaque)
3451 return qdev_device_help(opts);
3454 static int device_init_func(QemuOpts *opts, void *opaque)
3458 dev = qdev_device_add(opts);
3464 static int chardev_init_func(QemuOpts *opts, void *opaque)
3466 CharDriverState *chr;
3468 chr = qemu_chr_open_opts(opts, NULL);
3474 static int mon_init_func(QemuOpts *opts, void *opaque)
3476 CharDriverState *chr;
3477 const char *chardev;
3481 mode = qemu_opt_get(opts, "mode");
3485 if (strcmp(mode, "readline") == 0) {
3486 flags = MONITOR_USE_READLINE;
3487 } else if (strcmp(mode, "control") == 0) {
3488 flags = MONITOR_USE_CONTROL;
3490 fprintf(stderr, "unknown monitor mode \"%s\"\n", mode);
3494 if (qemu_opt_get_bool(opts, "default", 0))
3495 flags |= MONITOR_IS_DEFAULT;
3497 chardev = qemu_opt_get(opts, "chardev");
3498 chr = qemu_chr_find(chardev);
3500 fprintf(stderr, "chardev \"%s\" not found\n", chardev);
3504 monitor_init(chr, flags);
3508 static void monitor_parse(const char *optarg, const char *mode)
3510 static int monitor_device_index = 0;
3516 if (strstart(optarg, "chardev:", &p)) {
3517 snprintf(label, sizeof(label), "%s", p);
3519 if (monitor_device_index) {
3520 snprintf(label, sizeof(label), "monitor%d",
3521 monitor_device_index);
3523 snprintf(label, sizeof(label), "monitor");
3526 opts = qemu_chr_parse_compat(label, optarg);
3528 fprintf(stderr, "parse error: %s\n", optarg);
3533 opts = qemu_opts_create(&qemu_mon_opts, label, 1);
3535 fprintf(stderr, "duplicate chardev: %s\n", label);
3538 qemu_opt_set(opts, "mode", mode);
3539 qemu_opt_set(opts, "chardev", label);
3541 qemu_opt_set(opts, "default", "on");
3542 monitor_device_index++;
3545 struct device_config {
3547 DEV_USB, /* -usbdevice */
3549 DEV_SERIAL, /* -serial */
3550 DEV_PARALLEL, /* -parallel */
3551 DEV_VIRTCON, /* -virtioconsole */
3552 DEV_DEBUGCON, /* -debugcon */
3554 const char *cmdline;
3555 QTAILQ_ENTRY(device_config) next;
3557 QTAILQ_HEAD(, device_config) device_configs = QTAILQ_HEAD_INITIALIZER(device_configs);
3559 static void add_device_config(int type, const char *cmdline)
3561 struct device_config *conf;
3563 conf = qemu_mallocz(sizeof(*conf));
3565 conf->cmdline = cmdline;
3566 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
3569 static int foreach_device_config(int type, int (*func)(const char *cmdline))
3571 struct device_config *conf;
3574 QTAILQ_FOREACH(conf, &device_configs, next) {
3575 if (conf->type != type)
3577 rc = func(conf->cmdline);
3584 static int serial_parse(const char *devname)
3586 static int index = 0;
3589 if (strcmp(devname, "none") == 0)
3591 if (index == MAX_SERIAL_PORTS) {
3592 fprintf(stderr, "qemu: too many serial ports\n");
3595 snprintf(label, sizeof(label), "serial%d", index);
3596 serial_hds[index] = qemu_chr_open(label, devname, NULL);
3597 if (!serial_hds[index]) {
3598 fprintf(stderr, "qemu: could not open serial device '%s': %s\n",
3599 devname, strerror(errno));
3606 static int parallel_parse(const char *devname)
3608 static int index = 0;
3611 if (strcmp(devname, "none") == 0)
3613 if (index == MAX_PARALLEL_PORTS) {
3614 fprintf(stderr, "qemu: too many parallel ports\n");
3617 snprintf(label, sizeof(label), "parallel%d", index);
3618 parallel_hds[index] = qemu_chr_open(label, devname, NULL);
3619 if (!parallel_hds[index]) {
3620 fprintf(stderr, "qemu: could not open parallel device '%s': %s\n",
3621 devname, strerror(errno));
3628 static int virtcon_parse(const char *devname)
3630 static int index = 0;
3632 QemuOpts *bus_opts, *dev_opts;
3634 if (strcmp(devname, "none") == 0)
3636 if (index == MAX_VIRTIO_CONSOLES) {
3637 fprintf(stderr, "qemu: too many virtio consoles\n");
3641 bus_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
3642 qemu_opt_set(bus_opts, "driver", "virtio-serial");
3644 dev_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
3645 qemu_opt_set(dev_opts, "driver", "virtconsole");
3647 snprintf(label, sizeof(label), "virtcon%d", index);
3648 virtcon_hds[index] = qemu_chr_open(label, devname, NULL);
3649 if (!virtcon_hds[index]) {
3650 fprintf(stderr, "qemu: could not open virtio console '%s': %s\n",
3651 devname, strerror(errno));
3654 qemu_opt_set(dev_opts, "chardev", label);
3660 static int debugcon_parse(const char *devname)
3664 if (!qemu_chr_open("debugcon", devname, NULL)) {
3667 opts = qemu_opts_create(&qemu_device_opts, "debugcon", 1);
3669 fprintf(stderr, "qemu: already have a debugcon device\n");
3672 qemu_opt_set(opts, "driver", "isa-debugcon");
3673 qemu_opt_set(opts, "chardev", "debugcon");
3677 static const QEMUOption *lookup_opt(int argc, char **argv,
3678 const char **poptarg, int *poptind)
3680 const QEMUOption *popt;
3681 int optind = *poptind;
3682 char *r = argv[optind];
3685 loc_set_cmdline(argv, optind, 1);
3687 /* Treat --foo the same as -foo. */
3690 popt = qemu_options;
3693 error_report("invalid option");
3696 if (!strcmp(popt->name, r + 1))
3700 if (popt->flags & HAS_ARG) {
3701 if (optind >= argc) {
3702 error_report("requires an argument");
3705 optarg = argv[optind++];
3706 loc_set_cmdline(argv, optind - 2, 2);
3717 int main(int argc, char **argv, char **envp)
3719 const char *gdbstub_dev = NULL;
3720 uint32_t boot_devices_bitmap = 0;
3722 int snapshot, linux_boot, net_boot;
3723 const char *icount_option = NULL;
3724 const char *initrd_filename;
3725 const char *kernel_filename, *kernel_cmdline;
3726 char boot_devices[33] = "cad"; /* default to HD->floppy->CD-ROM */
3728 DisplayChangeListener *dcl;
3729 int cyls, heads, secs, translation;
3730 QemuOpts *hda_opts = NULL, *opts;
3733 const char *loadvm = NULL;
3734 QEMUMachine *machine;
3735 const char *cpu_model;
3740 const char *pid_file = NULL;
3741 const char *incoming = NULL;
3744 struct passwd *pwd = NULL;
3745 const char *chroot_dir = NULL;
3746 const char *run_as = NULL;
3749 int show_vnc_port = 0;
3752 error_set_progname(argv[0]);
3756 qemu_cache_utils_init(envp);
3758 QLIST_INIT (&vm_change_state_head);
3761 struct sigaction act;
3762 sigfillset(&act.sa_mask);
3764 act.sa_handler = SIG_IGN;
3765 sigaction(SIGPIPE, &act, NULL);
3768 SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE);
3769 /* Note: cpu_interrupt() is currently not SMP safe, so we force
3770 QEMU to run on a single CPU */
3775 h = GetCurrentProcess();
3776 if (GetProcessAffinityMask(h, &mask, &smask)) {
3777 for(i = 0; i < 32; i++) {
3778 if (mask & (1 << i))
3783 SetProcessAffinityMask(h, mask);
3789 module_call_init(MODULE_INIT_MACHINE);
3790 machine = find_default_machine();
3792 initrd_filename = NULL;
3795 kernel_filename = NULL;
3796 kernel_cmdline = "";
3797 cyls = heads = secs = 0;
3798 translation = BIOS_ATA_TRANSLATION_AUTO;
3800 for (i = 0; i < MAX_NODES; i++) {
3802 node_cpumask[i] = 0;
3811 /* first pass of option parsing */
3813 while (optind < argc) {
3814 if (argv[optind][0] != '-') {
3819 const QEMUOption *popt;
3821 popt = lookup_opt(argc, argv, &optarg, &optind);
3822 switch (popt->index) {
3823 case QEMU_OPTION_nodefconfig:
3834 fname = CONFIG_QEMU_CONFDIR "/qemu.conf";
3835 fp = fopen(fname, "r");
3837 if (qemu_config_parse(fp, fname) != 0) {
3843 fname = CONFIG_QEMU_CONFDIR "/target-" TARGET_ARCH ".conf";
3844 fp = fopen(fname, "r");
3846 if (qemu_config_parse(fp, fname) != 0) {
3852 #if defined(cpudef_setup)
3853 cpudef_setup(); /* parse cpu definitions in target config file */
3856 /* second pass of option parsing */
3861 if (argv[optind][0] != '-') {
3862 hda_opts = drive_add(argv[optind++], HD_ALIAS, 0);
3864 const QEMUOption *popt;
3866 popt = lookup_opt(argc, argv, &optarg, &optind);
3867 switch(popt->index) {
3869 machine = find_machine(optarg);
3872 printf("Supported machines are:\n");
3873 for(m = first_machine; m != NULL; m = m->next) {
3875 printf("%-10s %s (alias of %s)\n",
3876 m->alias, m->desc, m->name);
3877 printf("%-10s %s%s\n",
3879 m->is_default ? " (default)" : "");
3881 exit(*optarg != '?');
3884 case QEMU_OPTION_cpu:
3885 /* hw initialization will check this */
3886 if (*optarg == '?') {
3887 /* XXX: implement xxx_cpu_list for targets that still miss it */
3888 #if defined(cpu_list_id)
3889 cpu_list_id(stdout, &fprintf, optarg);
3890 #elif defined(cpu_list)
3891 cpu_list(stdout, &fprintf); /* deprecated */
3898 case QEMU_OPTION_initrd:
3899 initrd_filename = optarg;
3901 case QEMU_OPTION_hda:
3903 hda_opts = drive_add(optarg, HD_ALIAS, 0);
3905 hda_opts = drive_add(optarg, HD_ALIAS
3906 ",cyls=%d,heads=%d,secs=%d%s",
3907 0, cyls, heads, secs,
3908 translation == BIOS_ATA_TRANSLATION_LBA ?
3910 translation == BIOS_ATA_TRANSLATION_NONE ?
3911 ",trans=none" : "");
3913 case QEMU_OPTION_hdb:
3914 case QEMU_OPTION_hdc:
3915 case QEMU_OPTION_hdd:
3916 drive_add(optarg, HD_ALIAS, popt->index - QEMU_OPTION_hda);
3918 case QEMU_OPTION_drive:
3919 drive_add(NULL, "%s", optarg);
3921 case QEMU_OPTION_set:
3922 if (qemu_set_option(optarg) != 0)
3925 case QEMU_OPTION_global:
3926 if (qemu_global_option(optarg) != 0)
3929 case QEMU_OPTION_mtdblock:
3930 drive_add(optarg, MTD_ALIAS);
3932 case QEMU_OPTION_sd:
3933 drive_add(optarg, SD_ALIAS);
3935 case QEMU_OPTION_pflash:
3936 drive_add(optarg, PFLASH_ALIAS);
3938 case QEMU_OPTION_snapshot:
3941 case QEMU_OPTION_hdachs:
3945 cyls = strtol(p, (char **)&p, 0);
3946 if (cyls < 1 || cyls > 16383)
3951 heads = strtol(p, (char **)&p, 0);
3952 if (heads < 1 || heads > 16)
3957 secs = strtol(p, (char **)&p, 0);
3958 if (secs < 1 || secs > 63)
3962 if (!strcmp(p, "none"))
3963 translation = BIOS_ATA_TRANSLATION_NONE;
3964 else if (!strcmp(p, "lba"))
3965 translation = BIOS_ATA_TRANSLATION_LBA;
3966 else if (!strcmp(p, "auto"))
3967 translation = BIOS_ATA_TRANSLATION_AUTO;
3970 } else if (*p != '\0') {
3972 fprintf(stderr, "qemu: invalid physical CHS format\n");
3975 if (hda_opts != NULL) {
3977 snprintf(num, sizeof(num), "%d", cyls);
3978 qemu_opt_set(hda_opts, "cyls", num);
3979 snprintf(num, sizeof(num), "%d", heads);
3980 qemu_opt_set(hda_opts, "heads", num);
3981 snprintf(num, sizeof(num), "%d", secs);
3982 qemu_opt_set(hda_opts, "secs", num);
3983 if (translation == BIOS_ATA_TRANSLATION_LBA)
3984 qemu_opt_set(hda_opts, "trans", "lba");
3985 if (translation == BIOS_ATA_TRANSLATION_NONE)
3986 qemu_opt_set(hda_opts, "trans", "none");
3990 case QEMU_OPTION_numa:
3991 if (nb_numa_nodes >= MAX_NODES) {
3992 fprintf(stderr, "qemu: too many NUMA nodes\n");
3997 case QEMU_OPTION_nographic:
3998 display_type = DT_NOGRAPHIC;
4000 #ifdef CONFIG_CURSES
4001 case QEMU_OPTION_curses:
4002 display_type = DT_CURSES;
4005 case QEMU_OPTION_portrait:
4008 case QEMU_OPTION_kernel:
4009 kernel_filename = optarg;
4011 case QEMU_OPTION_append:
4012 kernel_cmdline = optarg;
4014 case QEMU_OPTION_cdrom:
4015 drive_add(optarg, CDROM_ALIAS);
4017 case QEMU_OPTION_boot:
4019 static const char * const params[] = {
4020 "order", "once", "menu", NULL
4022 char buf[sizeof(boot_devices)];
4023 char *standard_boot_devices;
4026 if (!strchr(optarg, '=')) {
4028 pstrcpy(buf, sizeof(buf), optarg);
4029 } else if (check_params(buf, sizeof(buf), params, optarg) < 0) {
4031 "qemu: unknown boot parameter '%s' in '%s'\n",
4037 get_param_value(buf, sizeof(buf), "order", optarg)) {
4038 boot_devices_bitmap = parse_bootdevices(buf);
4039 pstrcpy(boot_devices, sizeof(boot_devices), buf);
4042 if (get_param_value(buf, sizeof(buf),
4044 boot_devices_bitmap |= parse_bootdevices(buf);
4045 standard_boot_devices = qemu_strdup(boot_devices);
4046 pstrcpy(boot_devices, sizeof(boot_devices), buf);
4047 qemu_register_reset(restore_boot_devices,
4048 standard_boot_devices);
4050 if (get_param_value(buf, sizeof(buf),
4052 if (!strcmp(buf, "on")) {
4054 } else if (!strcmp(buf, "off")) {
4058 "qemu: invalid option value '%s'\n",
4066 case QEMU_OPTION_fda:
4067 case QEMU_OPTION_fdb:
4068 drive_add(optarg, FD_ALIAS, popt->index - QEMU_OPTION_fda);
4071 case QEMU_OPTION_no_fd_bootchk:
4075 case QEMU_OPTION_netdev:
4076 if (net_client_parse(&qemu_netdev_opts, optarg) == -1) {
4080 case QEMU_OPTION_net:
4081 if (net_client_parse(&qemu_net_opts, optarg) == -1) {
4086 case QEMU_OPTION_tftp:
4087 legacy_tftp_prefix = optarg;
4089 case QEMU_OPTION_bootp:
4090 legacy_bootp_filename = optarg;
4093 case QEMU_OPTION_smb:
4094 if (net_slirp_smb(optarg) < 0)
4098 case QEMU_OPTION_redir:
4099 if (net_slirp_redir(optarg) < 0)
4103 case QEMU_OPTION_bt:
4104 add_device_config(DEV_BT, optarg);
4107 case QEMU_OPTION_audio_help:
4111 case QEMU_OPTION_soundhw:
4112 select_soundhw (optarg);
4118 case QEMU_OPTION_version:
4122 case QEMU_OPTION_m: {
4126 value = strtoul(optarg, &ptr, 10);
4128 case 0: case 'M': case 'm':
4135 fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
4139 /* On 32-bit hosts, QEMU is limited by virtual address space */
4140 if (value > (2047 << 20) && HOST_LONG_BITS == 32) {
4141 fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
4144 if (value != (uint64_t)(ram_addr_t)value) {
4145 fprintf(stderr, "qemu: ram size too large\n");
4151 case QEMU_OPTION_mempath:
4155 case QEMU_OPTION_mem_prealloc:
4162 const CPULogItem *item;
4164 mask = cpu_str_to_log_mask(optarg);
4166 printf("Log items (comma separated):\n");
4167 for(item = cpu_log_items; item->mask != 0; item++) {
4168 printf("%-10s %s\n", item->name, item->help);
4176 gdbstub_dev = "tcp::" DEFAULT_GDBSTUB_PORT;
4178 case QEMU_OPTION_gdb:
4179 gdbstub_dev = optarg;
4184 case QEMU_OPTION_bios:
4187 case QEMU_OPTION_singlestep:
4194 keyboard_layout = optarg;
4196 case QEMU_OPTION_localtime:
4199 case QEMU_OPTION_vga:
4200 select_vgahw (optarg);
4202 #if defined(TARGET_PPC) || defined(TARGET_SPARC)
4208 w = strtol(p, (char **)&p, 10);
4211 fprintf(stderr, "qemu: invalid resolution or depth\n");
4217 h = strtol(p, (char **)&p, 10);
4222 depth = strtol(p, (char **)&p, 10);
4223 if (depth != 8 && depth != 15 && depth != 16 &&
4224 depth != 24 && depth != 32)
4226 } else if (*p == '\0') {
4227 depth = graphic_depth;
4234 graphic_depth = depth;
4238 case QEMU_OPTION_echr:
4241 term_escape_char = strtol(optarg, &r, 0);
4243 printf("Bad argument to echr\n");
4246 case QEMU_OPTION_monitor:
4247 monitor_parse(optarg, "readline");
4248 default_monitor = 0;
4250 case QEMU_OPTION_qmp:
4251 monitor_parse(optarg, "control");
4252 default_monitor = 0;
4254 case QEMU_OPTION_mon:
4255 opts = qemu_opts_parse(&qemu_mon_opts, optarg, 1);
4257 fprintf(stderr, "parse error: %s\n", optarg);
4260 default_monitor = 0;
4262 case QEMU_OPTION_chardev:
4263 opts = qemu_opts_parse(&qemu_chardev_opts, optarg, 1);
4265 fprintf(stderr, "parse error: %s\n", optarg);
4269 case QEMU_OPTION_serial:
4270 add_device_config(DEV_SERIAL, optarg);
4272 if (strncmp(optarg, "mon:", 4) == 0) {
4273 default_monitor = 0;
4276 case QEMU_OPTION_watchdog:
4279 "qemu: only one watchdog option may be given\n");
4284 case QEMU_OPTION_watchdog_action:
4285 if (select_watchdog_action(optarg) == -1) {
4286 fprintf(stderr, "Unknown -watchdog-action parameter\n");
4290 case QEMU_OPTION_virtiocon:
4291 add_device_config(DEV_VIRTCON, optarg);
4292 default_virtcon = 0;
4293 if (strncmp(optarg, "mon:", 4) == 0) {
4294 default_monitor = 0;
4297 case QEMU_OPTION_parallel:
4298 add_device_config(DEV_PARALLEL, optarg);
4299 default_parallel = 0;
4300 if (strncmp(optarg, "mon:", 4) == 0) {
4301 default_monitor = 0;
4304 case QEMU_OPTION_debugcon:
4305 add_device_config(DEV_DEBUGCON, optarg);
4307 case QEMU_OPTION_loadvm:
4310 case QEMU_OPTION_full_screen:
4314 case QEMU_OPTION_no_frame:
4317 case QEMU_OPTION_alt_grab:
4320 case QEMU_OPTION_ctrl_grab:
4323 case QEMU_OPTION_no_quit:
4326 case QEMU_OPTION_sdl:
4327 display_type = DT_SDL;
4330 case QEMU_OPTION_pidfile:
4334 case QEMU_OPTION_win2k_hack:
4335 win2k_install_hack = 1;
4337 case QEMU_OPTION_rtc_td_hack:
4340 case QEMU_OPTION_acpitable:
4341 if(acpi_table_add(optarg) < 0) {
4342 fprintf(stderr, "Wrong acpi table provided\n");
4346 case QEMU_OPTION_smbios:
4347 if(smbios_entry_add(optarg) < 0) {
4348 fprintf(stderr, "Wrong smbios provided\n");
4354 case QEMU_OPTION_enable_kvm:
4358 case QEMU_OPTION_usb:
4361 case QEMU_OPTION_usbdevice:
4363 add_device_config(DEV_USB, optarg);
4365 case QEMU_OPTION_device:
4366 if (!qemu_opts_parse(&qemu_device_opts, optarg, 1)) {
4370 case QEMU_OPTION_smp:
4373 fprintf(stderr, "Invalid number of CPUs\n");
4376 if (max_cpus < smp_cpus) {
4377 fprintf(stderr, "maxcpus must be equal to or greater than "
4381 if (max_cpus > 255) {
4382 fprintf(stderr, "Unsupported number of maxcpus\n");
4386 case QEMU_OPTION_vnc:
4387 display_type = DT_VNC;
4388 vnc_display = optarg;
4391 case QEMU_OPTION_no_acpi:
4394 case QEMU_OPTION_no_hpet:
4397 case QEMU_OPTION_balloon:
4398 if (balloon_parse(optarg) < 0) {
4399 fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
4404 case QEMU_OPTION_no_reboot:
4407 case QEMU_OPTION_no_shutdown:
4410 case QEMU_OPTION_show_cursor:
4413 case QEMU_OPTION_uuid:
4414 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
4415 fprintf(stderr, "Fail to parse UUID string."
4416 " Wrong format.\n");
4421 case QEMU_OPTION_daemonize:
4425 case QEMU_OPTION_option_rom:
4426 if (nb_option_roms >= MAX_OPTION_ROMS) {
4427 fprintf(stderr, "Too many option ROMs\n");
4430 option_rom[nb_option_roms] = optarg;
4433 #if defined(TARGET_ARM) || defined(TARGET_M68K)
4434 case QEMU_OPTION_semihosting:
4435 semihosting_enabled = 1;
4438 case QEMU_OPTION_name:
4439 qemu_name = qemu_strdup(optarg);
4441 char *p = strchr(qemu_name, ',');
4444 if (strncmp(p, "process=", 8)) {
4445 fprintf(stderr, "Unknown subargument %s to -name", p);
4453 #if defined(TARGET_SPARC) || defined(TARGET_PPC)
4454 case QEMU_OPTION_prom_env:
4455 if (nb_prom_envs >= MAX_PROM_ENVS) {
4456 fprintf(stderr, "Too many prom variables\n");
4459 prom_envs[nb_prom_envs] = optarg;
4464 case QEMU_OPTION_old_param:
4468 case QEMU_OPTION_clock:
4469 configure_alarms(optarg);
4471 case QEMU_OPTION_startdate:
4472 configure_rtc_date_offset(optarg, 1);
4474 case QEMU_OPTION_rtc:
4475 opts = qemu_opts_parse(&qemu_rtc_opts, optarg, 0);
4477 fprintf(stderr, "parse error: %s\n", optarg);
4480 configure_rtc(opts);
4482 case QEMU_OPTION_tb_size:
4483 tb_size = strtol(optarg, NULL, 0);
4487 case QEMU_OPTION_icount:
4488 icount_option = optarg;
4490 case QEMU_OPTION_incoming:
4493 case QEMU_OPTION_nodefaults:
4495 default_parallel = 0;
4496 default_virtcon = 0;
4497 default_monitor = 0;
4505 case QEMU_OPTION_chroot:
4506 chroot_dir = optarg;
4508 case QEMU_OPTION_runas:
4513 case QEMU_OPTION_xen_domid:
4514 xen_domid = atoi(optarg);
4516 case QEMU_OPTION_xen_create:
4517 xen_mode = XEN_CREATE;
4519 case QEMU_OPTION_xen_attach:
4520 xen_mode = XEN_ATTACH;
4523 case QEMU_OPTION_readconfig:
4526 fp = fopen(optarg, "r");
4528 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
4531 if (qemu_config_parse(fp, optarg) != 0) {
4537 case QEMU_OPTION_writeconfig:
4540 if (strcmp(optarg, "-") == 0) {
4543 fp = fopen(optarg, "w");
4545 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
4549 qemu_config_write(fp);
4558 /* If no data_dir is specified then try to find it relative to the
4561 data_dir = find_datadir(argv[0]);
4563 /* If all else fails use the install patch specified when building. */
4565 data_dir = CONFIG_QEMU_SHAREDIR;
4569 * Default to max_cpus = smp_cpus, in case the user doesn't
4570 * specify a max_cpus value.
4573 max_cpus = smp_cpus;
4575 machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
4576 if (smp_cpus > machine->max_cpus) {
4577 fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
4578 "supported by machine `%s' (%d)\n", smp_cpus, machine->name,
4583 qemu_opts_foreach(&qemu_device_opts, default_driver_check, NULL, 0);
4584 qemu_opts_foreach(&qemu_global_opts, default_driver_check, NULL, 0);
4586 if (machine->no_serial) {
4589 if (machine->no_parallel) {
4590 default_parallel = 0;
4592 if (!machine->use_virtcon) {
4593 default_virtcon = 0;
4595 if (machine->no_vga) {
4598 if (machine->no_floppy) {
4601 if (machine->no_cdrom) {
4604 if (machine->no_sdcard) {
4608 if (display_type == DT_NOGRAPHIC) {
4609 if (default_parallel)
4610 add_device_config(DEV_PARALLEL, "null");
4611 if (default_serial && default_monitor) {
4612 add_device_config(DEV_SERIAL, "mon:stdio");
4613 } else if (default_virtcon && default_monitor) {
4614 add_device_config(DEV_VIRTCON, "mon:stdio");
4617 add_device_config(DEV_SERIAL, "stdio");
4618 if (default_virtcon)
4619 add_device_config(DEV_VIRTCON, "stdio");
4620 if (default_monitor)
4621 monitor_parse("stdio", "readline");
4625 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4626 if (default_parallel)
4627 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4628 if (default_monitor)
4629 monitor_parse("vc:80Cx24C", "readline");
4630 if (default_virtcon)
4631 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
4634 vga_interface_type = VGA_CIRRUS;
4636 if (qemu_opts_foreach(&qemu_chardev_opts, chardev_init_func, NULL, 1) != 0)
4643 if (pipe(fds) == -1)
4654 len = read(fds[0], &status, 1);
4655 if (len == -1 && (errno == EINTR))
4660 else if (status == 1) {
4661 fprintf(stderr, "Could not acquire pidfile: %s\n", strerror(errno));
4669 qemu_set_cloexec(fds[1]);
4681 signal(SIGTSTP, SIG_IGN);
4682 signal(SIGTTOU, SIG_IGN);
4683 signal(SIGTTIN, SIG_IGN);
4687 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
4691 if (write(fds[1], &status, 1) != 1) {
4692 perror("daemonize. Writing to pipe\n");
4696 fprintf(stderr, "Could not acquire pid file: %s\n", strerror(errno));
4700 if (kvm_enabled()) {
4703 ret = kvm_init(smp_cpus);
4705 fprintf(stderr, "failed to initialize KVM\n");
4710 if (qemu_init_main_loop()) {
4711 fprintf(stderr, "qemu_init_main_loop failed\n");
4714 linux_boot = (kernel_filename != NULL);
4716 if (!linux_boot && *kernel_cmdline != '\0') {
4717 fprintf(stderr, "-append only allowed with -kernel option\n");
4721 if (!linux_boot && initrd_filename != NULL) {
4722 fprintf(stderr, "-initrd only allowed with -kernel option\n");
4727 /* Win32 doesn't support line-buffering and requires size >= 2 */
4728 setvbuf(stdout, NULL, _IOLBF, 0);
4731 if (init_timer_alarm() < 0) {
4732 fprintf(stderr, "could not initialize alarm timer\n");
4735 configure_icount(icount_option);
4741 if (net_init_clients() < 0) {
4745 net_boot = (boot_devices_bitmap >> ('n' - 'a')) & 0xF;
4746 net_set_boot_mask(net_boot);
4748 /* init the bluetooth world */
4749 if (foreach_device_config(DEV_BT, bt_parse))
4752 /* init the memory */
4754 ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
4756 /* init the dynamic translator */
4757 cpu_exec_init_all(tb_size * 1024 * 1024);
4759 bdrv_init_with_whitelist();
4763 if (default_cdrom) {
4764 /* we always create the cdrom drive, even if no disk is there */
4765 drive_add(NULL, CDROM_ALIAS);
4768 if (default_floppy) {
4769 /* we always create at least one floppy */
4770 drive_add(NULL, FD_ALIAS, 0);
4773 if (default_sdcard) {
4774 /* we always create one sd slot, even if no card is in it */
4775 drive_add(NULL, SD_ALIAS);
4778 /* open the virtual block devices */
4780 qemu_opts_foreach(&qemu_drive_opts, drive_enable_snapshot, NULL, 0);
4781 if (qemu_opts_foreach(&qemu_drive_opts, drive_init_func, machine, 1) != 0)
4784 register_savevm_live("ram", 0, 3, NULL, ram_save_live, NULL,
4787 if (nb_numa_nodes > 0) {
4790 if (nb_numa_nodes > smp_cpus) {
4791 nb_numa_nodes = smp_cpus;
4794 /* If no memory size if given for any node, assume the default case
4795 * and distribute the available memory equally across all nodes
4797 for (i = 0; i < nb_numa_nodes; i++) {
4798 if (node_mem[i] != 0)
4801 if (i == nb_numa_nodes) {
4802 uint64_t usedmem = 0;
4804 /* On Linux, the each node's border has to be 8MB aligned,
4805 * the final node gets the rest.
4807 for (i = 0; i < nb_numa_nodes - 1; i++) {
4808 node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1);
4809 usedmem += node_mem[i];
4811 node_mem[i] = ram_size - usedmem;
4814 for (i = 0; i < nb_numa_nodes; i++) {
4815 if (node_cpumask[i] != 0)
4818 /* assigning the VCPUs round-robin is easier to implement, guest OSes
4819 * must cope with this anyway, because there are BIOSes out there in
4820 * real machines which also use this scheme.
4822 if (i == nb_numa_nodes) {
4823 for (i = 0; i < smp_cpus; i++) {
4824 node_cpumask[i % nb_numa_nodes] |= 1 << i;
4829 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4831 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4833 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
4835 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4838 module_call_init(MODULE_INIT_DEVICE);
4840 if (qemu_opts_foreach(&qemu_device_opts, device_help_func, NULL, 0) != 0)
4844 i = select_watchdog(watchdog);
4846 exit (i == 1 ? 1 : 0);
4849 if (machine->compat_props) {
4850 qdev_prop_register_global_list(machine->compat_props);
4854 machine->init(ram_size, boot_devices,
4855 kernel_filename, kernel_cmdline, initrd_filename, cpu_model);
4857 cpu_synchronize_all_post_init();
4860 /* must be after terminal init, SDL library changes signal handlers */
4864 for (env = first_cpu; env != NULL; env = env->next_cpu) {
4865 for (i = 0; i < nb_numa_nodes; i++) {
4866 if (node_cpumask[i] & (1 << env->cpu_index)) {
4872 current_machine = machine;
4874 /* init USB devices */
4876 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4880 /* init generic devices */
4881 if (qemu_opts_foreach(&qemu_device_opts, device_init_func, NULL, 1) != 0)
4884 net_check_clients();
4886 /* just use the first displaystate for the moment */
4887 ds = get_displaystate();
4889 if (display_type == DT_DEFAULT) {
4890 #if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
4891 display_type = DT_SDL;
4893 display_type = DT_VNC;
4894 vnc_display = "localhost:0,to=99";
4900 switch (display_type) {
4903 #if defined(CONFIG_CURSES)
4905 curses_display_init(ds, full_screen);
4908 #if defined(CONFIG_SDL)
4910 sdl_display_init(ds, full_screen, no_frame);
4912 #elif defined(CONFIG_COCOA)
4914 cocoa_display_init(ds, full_screen);
4918 vnc_display_init(ds);
4919 if (vnc_display_open(ds, vnc_display) < 0)
4922 if (show_vnc_port) {
4923 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
4931 dcl = ds->listeners;
4932 while (dcl != NULL) {
4933 if (dcl->dpy_refresh != NULL) {
4934 ds->gui_timer = qemu_new_timer(rt_clock, gui_update, ds);
4935 qemu_mod_timer(ds->gui_timer, qemu_get_clock(rt_clock));
4940 if (display_type == DT_NOGRAPHIC || display_type == DT_VNC) {
4941 nographic_timer = qemu_new_timer(rt_clock, nographic_update, NULL);
4942 qemu_mod_timer(nographic_timer, qemu_get_clock(rt_clock));
4945 text_consoles_set_display(ds);
4947 if (qemu_opts_foreach(&qemu_mon_opts, mon_init_func, NULL, 1) != 0)
4950 if (gdbstub_dev && gdbserver_start(gdbstub_dev) < 0) {
4951 fprintf(stderr, "qemu: could not open gdbserver on device '%s'\n",
4956 qdev_machine_creation_done();
4958 if (rom_load_all() != 0) {
4959 fprintf(stderr, "rom loading failed\n");
4963 qemu_system_reset();
4965 if (load_vmstate(loadvm) < 0) {
4971 qemu_start_incoming_migration(incoming);
4972 } else if (autostart) {
4982 len = write(fds[1], &status, 1);
4983 if (len == -1 && (errno == EINTR))
4990 perror("not able to chdir to /");
4993 TFR(fd = qemu_open("/dev/null", O_RDWR));
4999 pwd = getpwnam(run_as);
5001 fprintf(stderr, "User \"%s\" doesn't exist\n", run_as);
5007 if (chroot(chroot_dir) < 0) {
5008 fprintf(stderr, "chroot failed\n");
5012 perror("not able to chdir to /");
5018 if (setgid(pwd->pw_gid) < 0) {
5019 fprintf(stderr, "Failed to setgid(%d)\n", pwd->pw_gid);
5022 if (setuid(pwd->pw_uid) < 0) {
5023 fprintf(stderr, "Failed to setuid(%d)\n", pwd->pw_uid);
5026 if (setuid(0) != -1) {
5027 fprintf(stderr, "Dropping privileges failed\n");