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");