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
];
210 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
;
263 enum xen_mode xen_mode
= XEN_EMULATE
;
266 #define SIG_IPI (SIGRTMIN+4)
268 #define SIG_IPI SIGUSR1
271 static int default_serial
= 1;
272 static int default_parallel
= 1;
273 static int default_virtcon
= 1;
274 static int default_monitor
= 1;
275 static int default_vga
= 1;
276 static int default_floppy
= 1;
277 static int default_cdrom
= 1;
278 static int default_sdcard
= 1;
284 { .driver
= "isa-serial", .flag
= &default_serial
},
285 { .driver
= "isa-parallel", .flag
= &default_parallel
},
286 { .driver
= "isa-fdc", .flag
= &default_floppy
},
287 { .driver
= "ide-drive", .flag
= &default_cdrom
},
288 { .driver
= "virtio-serial-pci", .flag
= &default_virtcon
},
289 { .driver
= "virtio-serial-s390", .flag
= &default_virtcon
},
290 { .driver
= "virtio-serial", .flag
= &default_virtcon
},
291 { .driver
= "VGA", .flag
= &default_vga
},
292 { .driver
= "cirrus-vga", .flag
= &default_vga
},
293 { .driver
= "vmware-svga", .flag
= &default_vga
},
296 static int default_driver_check(QemuOpts
*opts
, void *opaque
)
298 const char *driver
= qemu_opt_get(opts
, "driver");
303 for (i
= 0; i
< ARRAY_SIZE(default_list
); i
++) {
304 if (strcmp(default_list
[i
].driver
, driver
) != 0)
306 *(default_list
[i
].flag
) = 0;
311 /***********************************************************/
312 /* x86 ISA bus support */
314 target_phys_addr_t isa_mem_base
= 0;
317 /***********************************************************/
318 void hw_error(const char *fmt
, ...)
324 fprintf(stderr
, "qemu: hardware error: ");
325 vfprintf(stderr
, fmt
, ap
);
326 fprintf(stderr
, "\n");
327 for(env
= first_cpu
; env
!= NULL
; env
= env
->next_cpu
) {
328 fprintf(stderr
, "CPU #%d:\n", env
->cpu_index
);
330 cpu_dump_state(env
, stderr
, fprintf
, X86_DUMP_FPU
);
332 cpu_dump_state(env
, stderr
, fprintf
, 0);
339 static void set_proc_name(const char *s
)
341 #if defined(__linux__) && defined(PR_SET_NAME)
345 name
[sizeof(name
) - 1] = 0;
346 strncpy(name
, s
, sizeof(name
));
347 /* Could rewrite argv[0] too, but that's a bit more complicated.
348 This simple way is enough for `top'. */
349 prctl(PR_SET_NAME
, name
);
356 static QEMUBalloonEvent
*qemu_balloon_event
;
357 void *qemu_balloon_event_opaque
;
359 void qemu_add_balloon_handler(QEMUBalloonEvent
*func
, void *opaque
)
361 qemu_balloon_event
= func
;
362 qemu_balloon_event_opaque
= opaque
;
365 int qemu_balloon(ram_addr_t target
, MonitorCompletion cb
, void *opaque
)
367 if (qemu_balloon_event
) {
368 qemu_balloon_event(qemu_balloon_event_opaque
, target
, cb
, opaque
);
375 int qemu_balloon_status(MonitorCompletion cb
, void *opaque
)
377 if (qemu_balloon_event
) {
378 qemu_balloon_event(qemu_balloon_event_opaque
, 0, cb
, opaque
);
386 /***********************************************************/
387 /* real time host monotonic timer */
389 /* compute with 96 bit intermediate result: (a*b)/c */
390 uint64_t muldiv64(uint64_t a
, uint32_t b
, uint32_t c
)
395 #ifdef HOST_WORDS_BIGENDIAN
405 rl
= (uint64_t)u
.l
.low
* (uint64_t)b
;
406 rh
= (uint64_t)u
.l
.high
* (uint64_t)b
;
409 res
.l
.low
= (((rh
% c
) << 32) + (rl
& 0xffffffff)) / c
;
413 /***********************************************************/
414 /* host time/date access */
415 void qemu_get_timedate(struct tm
*tm
, int offset
)
422 if (rtc_date_offset
== -1) {
426 ret
= localtime(&ti
);
428 ti
-= rtc_date_offset
;
432 memcpy(tm
, ret
, sizeof(struct tm
));
435 int qemu_timedate_diff(struct tm
*tm
)
439 if (rtc_date_offset
== -1)
441 seconds
= mktimegm(tm
);
443 seconds
= mktime(tm
);
445 seconds
= mktimegm(tm
) + rtc_date_offset
;
447 return seconds
- time(NULL
);
450 void rtc_change_mon_event(struct tm
*tm
)
454 data
= qobject_from_jsonf("{ 'offset': %d }", qemu_timedate_diff(tm
));
455 monitor_protocol_event(QEVENT_RTC_CHANGE
, data
);
456 qobject_decref(data
);
459 static void configure_rtc_date_offset(const char *startdate
, int legacy
)
461 time_t rtc_start_date
;
464 if (!strcmp(startdate
, "now") && legacy
) {
465 rtc_date_offset
= -1;
467 if (sscanf(startdate
, "%d-%d-%dT%d:%d:%d",
475 } else if (sscanf(startdate
, "%d-%d-%d",
487 rtc_start_date
= mktimegm(&tm
);
488 if (rtc_start_date
== -1) {
490 fprintf(stderr
, "Invalid date format. Valid formats are:\n"
491 "'2006-06-17T16:01:21' or '2006-06-17'\n");
494 rtc_date_offset
= time(NULL
) - rtc_start_date
;
498 static void configure_rtc(QemuOpts
*opts
)
502 value
= qemu_opt_get(opts
, "base");
504 if (!strcmp(value
, "utc")) {
506 } else if (!strcmp(value
, "localtime")) {
509 configure_rtc_date_offset(value
, 0);
512 value
= qemu_opt_get(opts
, "clock");
514 if (!strcmp(value
, "host")) {
515 rtc_clock
= host_clock
;
516 } else if (!strcmp(value
, "vm")) {
517 rtc_clock
= vm_clock
;
519 fprintf(stderr
, "qemu: invalid option value '%s'\n", value
);
524 value
= qemu_opt_get(opts
, "driftfix");
526 if (!strcmp(value
, "slew")) {
528 } else if (!strcmp(value
, "none")) {
531 fprintf(stderr
, "qemu: invalid option value '%s'\n", value
);
539 static void socket_cleanup(void)
544 static int socket_init(void)
549 ret
= WSAStartup(MAKEWORD(2,2), &Data
);
551 err
= WSAGetLastError();
552 fprintf(stderr
, "WSAStartup: %d\n", err
);
555 atexit(socket_cleanup
);
560 /***********************************************************/
561 /* Bluetooth support */
564 static struct HCIInfo
*hci_table
[MAX_NICS
];
566 static struct bt_vlan_s
{
567 struct bt_scatternet_s net
;
569 struct bt_vlan_s
*next
;
572 /* find or alloc a new bluetooth "VLAN" */
573 static struct bt_scatternet_s
*qemu_find_bt_vlan(int id
)
575 struct bt_vlan_s
**pvlan
, *vlan
;
576 for (vlan
= first_bt_vlan
; vlan
!= NULL
; vlan
= vlan
->next
) {
580 vlan
= qemu_mallocz(sizeof(struct bt_vlan_s
));
582 pvlan
= &first_bt_vlan
;
583 while (*pvlan
!= NULL
)
584 pvlan
= &(*pvlan
)->next
;
589 static void null_hci_send(struct HCIInfo
*hci
, const uint8_t *data
, int len
)
593 static int null_hci_addr_set(struct HCIInfo
*hci
, const uint8_t *bd_addr
)
598 static struct HCIInfo null_hci
= {
599 .cmd_send
= null_hci_send
,
600 .sco_send
= null_hci_send
,
601 .acl_send
= null_hci_send
,
602 .bdaddr_set
= null_hci_addr_set
,
605 struct HCIInfo
*qemu_next_hci(void)
607 if (cur_hci
== nb_hcis
)
610 return hci_table
[cur_hci
++];
613 static struct HCIInfo
*hci_init(const char *str
)
616 struct bt_scatternet_s
*vlan
= 0;
618 if (!strcmp(str
, "null"))
621 else if (!strncmp(str
, "host", 4) && (str
[4] == '\0' || str
[4] == ':'))
623 return bt_host_hci(str
[4] ? str
+ 5 : "hci0");
624 else if (!strncmp(str
, "hci", 3)) {
627 if (!strncmp(str
+ 3, ",vlan=", 6)) {
628 vlan
= qemu_find_bt_vlan(strtol(str
+ 9, &endp
, 0));
633 vlan
= qemu_find_bt_vlan(0);
635 return bt_new_hci(vlan
);
638 fprintf(stderr
, "qemu: Unknown bluetooth HCI `%s'.\n", str
);
643 static int bt_hci_parse(const char *str
)
648 if (nb_hcis
>= MAX_NICS
) {
649 fprintf(stderr
, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS
);
662 bdaddr
.b
[5] = 0x56 + nb_hcis
;
663 hci
->bdaddr_set(hci
, bdaddr
.b
);
665 hci_table
[nb_hcis
++] = hci
;
670 static void bt_vhci_add(int vlan_id
)
672 struct bt_scatternet_s
*vlan
= qemu_find_bt_vlan(vlan_id
);
675 fprintf(stderr
, "qemu: warning: adding a VHCI to "
676 "an empty scatternet %i\n", vlan_id
);
678 bt_vhci_init(bt_new_hci(vlan
));
681 static struct bt_device_s
*bt_device_add(const char *opt
)
683 struct bt_scatternet_s
*vlan
;
685 char *endp
= strstr(opt
, ",vlan=");
686 int len
= (endp
? endp
- opt
: strlen(opt
)) + 1;
689 pstrcpy(devname
, MIN(sizeof(devname
), len
), opt
);
692 vlan_id
= strtol(endp
+ 6, &endp
, 0);
694 fprintf(stderr
, "qemu: unrecognised bluetooth vlan Id\n");
699 vlan
= qemu_find_bt_vlan(vlan_id
);
702 fprintf(stderr
, "qemu: warning: adding a slave device to "
703 "an empty scatternet %i\n", vlan_id
);
705 if (!strcmp(devname
, "keyboard"))
706 return bt_keyboard_init(vlan
);
708 fprintf(stderr
, "qemu: unsupported bluetooth device `%s'\n", devname
);
712 static int bt_parse(const char *opt
)
714 const char *endp
, *p
;
717 if (strstart(opt
, "hci", &endp
)) {
718 if (!*endp
|| *endp
== ',') {
720 if (!strstart(endp
, ",vlan=", 0))
723 return bt_hci_parse(opt
);
725 } else if (strstart(opt
, "vhci", &endp
)) {
726 if (!*endp
|| *endp
== ',') {
728 if (strstart(endp
, ",vlan=", &p
)) {
729 vlan
= strtol(p
, (char **) &endp
, 0);
731 fprintf(stderr
, "qemu: bad scatternet '%s'\n", p
);
735 fprintf(stderr
, "qemu: bad parameter '%s'\n", endp
+ 1);
744 } else if (strstart(opt
, "device:", &endp
))
745 return !bt_device_add(endp
);
747 fprintf(stderr
, "qemu: bad bluetooth parameter '%s'\n", opt
);
751 /***********************************************************/
752 /* QEMU Block devices */
754 #define HD_ALIAS "index=%d,media=disk"
755 #define CDROM_ALIAS "index=2,media=cdrom"
756 #define FD_ALIAS "index=%d,if=floppy"
757 #define PFLASH_ALIAS "if=pflash"
758 #define MTD_ALIAS "if=mtd"
759 #define SD_ALIAS "index=0,if=sd"
761 QemuOpts
*drive_add(const char *file
, const char *fmt
, ...)
768 vsnprintf(optstr
, sizeof(optstr
), fmt
, ap
);
771 opts
= qemu_opts_parse(&qemu_drive_opts
, optstr
, 0);
773 fprintf(stderr
, "%s: huh? duplicate? (%s)\n",
774 __FUNCTION__
, optstr
);
778 qemu_opt_set(opts
, "file", file
);
782 DriveInfo
*drive_get(BlockInterfaceType type
, int bus
, int unit
)
786 /* seek interface, bus and unit */
788 QTAILQ_FOREACH(dinfo
, &drives
, next
) {
789 if (dinfo
->type
== type
&&
798 DriveInfo
*drive_get_by_id(const char *id
)
802 QTAILQ_FOREACH(dinfo
, &drives
, next
) {
803 if (strcmp(id
, dinfo
->id
))
810 int drive_get_max_bus(BlockInterfaceType type
)
816 QTAILQ_FOREACH(dinfo
, &drives
, next
) {
817 if(dinfo
->type
== type
&&
818 dinfo
->bus
> max_bus
)
819 max_bus
= dinfo
->bus
;
824 const char *drive_get_serial(BlockDriverState
*bdrv
)
828 QTAILQ_FOREACH(dinfo
, &drives
, next
) {
829 if (dinfo
->bdrv
== bdrv
)
830 return dinfo
->serial
;
836 BlockInterfaceErrorAction
drive_get_on_error(
837 BlockDriverState
*bdrv
, int is_read
)
841 QTAILQ_FOREACH(dinfo
, &drives
, next
) {
842 if (dinfo
->bdrv
== bdrv
)
843 return is_read
? dinfo
->on_read_error
: dinfo
->on_write_error
;
846 return is_read
? BLOCK_ERR_REPORT
: BLOCK_ERR_STOP_ENOSPC
;
849 static void bdrv_format_print(void *opaque
, const char *name
)
851 fprintf(stderr
, " %s", name
);
854 void drive_uninit(DriveInfo
*dinfo
)
856 qemu_opts_del(dinfo
->opts
);
857 bdrv_delete(dinfo
->bdrv
);
858 QTAILQ_REMOVE(&drives
, dinfo
, next
);
862 static int parse_block_error_action(const char *buf
, int is_read
)
864 if (!strcmp(buf
, "ignore")) {
865 return BLOCK_ERR_IGNORE
;
866 } else if (!is_read
&& !strcmp(buf
, "enospc")) {
867 return BLOCK_ERR_STOP_ENOSPC
;
868 } else if (!strcmp(buf
, "stop")) {
869 return BLOCK_ERR_STOP_ANY
;
870 } else if (!strcmp(buf
, "report")) {
871 return BLOCK_ERR_REPORT
;
873 fprintf(stderr
, "qemu: '%s' invalid %s error action\n",
874 buf
, is_read
? "read" : "write");
879 DriveInfo
*drive_init(QemuOpts
*opts
, void *opaque
,
883 const char *file
= NULL
;
886 const char *mediastr
= "";
887 BlockInterfaceType type
;
888 enum { MEDIA_DISK
, MEDIA_CDROM
} media
;
890 int cyls
, heads
, secs
, translation
;
891 BlockDriver
*drv
= NULL
;
892 QEMUMachine
*machine
= opaque
;
899 int on_read_error
, on_write_error
;
906 translation
= BIOS_ATA_TRANSLATION_AUTO
;
909 if (machine
&& machine
->use_scsi
) {
911 max_devs
= MAX_SCSI_DEVS
;
912 pstrcpy(devname
, sizeof(devname
), "scsi");
915 max_devs
= MAX_IDE_DEVS
;
916 pstrcpy(devname
, sizeof(devname
), "ide");
920 /* extract parameters */
921 bus_id
= qemu_opt_get_number(opts
, "bus", 0);
922 unit_id
= qemu_opt_get_number(opts
, "unit", -1);
923 index
= qemu_opt_get_number(opts
, "index", -1);
925 cyls
= qemu_opt_get_number(opts
, "cyls", 0);
926 heads
= qemu_opt_get_number(opts
, "heads", 0);
927 secs
= qemu_opt_get_number(opts
, "secs", 0);
929 snapshot
= qemu_opt_get_bool(opts
, "snapshot", 0);
930 ro
= qemu_opt_get_bool(opts
, "readonly", 0);
932 file
= qemu_opt_get(opts
, "file");
933 serial
= qemu_opt_get(opts
, "serial");
935 if ((buf
= qemu_opt_get(opts
, "if")) != NULL
) {
936 pstrcpy(devname
, sizeof(devname
), buf
);
937 if (!strcmp(buf
, "ide")) {
939 max_devs
= MAX_IDE_DEVS
;
940 } else if (!strcmp(buf
, "scsi")) {
942 max_devs
= MAX_SCSI_DEVS
;
943 } else if (!strcmp(buf
, "floppy")) {
946 } else if (!strcmp(buf
, "pflash")) {
949 } else if (!strcmp(buf
, "mtd")) {
952 } else if (!strcmp(buf
, "sd")) {
955 } else if (!strcmp(buf
, "virtio")) {
958 } else if (!strcmp(buf
, "xen")) {
961 } else if (!strcmp(buf
, "none")) {
965 fprintf(stderr
, "qemu: unsupported bus type '%s'\n", buf
);
970 if (cyls
|| heads
|| secs
) {
971 if (cyls
< 1 || (type
== IF_IDE
&& cyls
> 16383)) {
972 fprintf(stderr
, "qemu: '%s' invalid physical cyls number\n", buf
);
975 if (heads
< 1 || (type
== IF_IDE
&& heads
> 16)) {
976 fprintf(stderr
, "qemu: '%s' invalid physical heads number\n", buf
);
979 if (secs
< 1 || (type
== IF_IDE
&& secs
> 63)) {
980 fprintf(stderr
, "qemu: '%s' invalid physical secs number\n", buf
);
985 if ((buf
= qemu_opt_get(opts
, "trans")) != NULL
) {
988 "qemu: '%s' trans must be used with cyls,heads and secs\n",
992 if (!strcmp(buf
, "none"))
993 translation
= BIOS_ATA_TRANSLATION_NONE
;
994 else if (!strcmp(buf
, "lba"))
995 translation
= BIOS_ATA_TRANSLATION_LBA
;
996 else if (!strcmp(buf
, "auto"))
997 translation
= BIOS_ATA_TRANSLATION_AUTO
;
999 fprintf(stderr
, "qemu: '%s' invalid translation type\n", buf
);
1004 if ((buf
= qemu_opt_get(opts
, "media")) != NULL
) {
1005 if (!strcmp(buf
, "disk")) {
1007 } else if (!strcmp(buf
, "cdrom")) {
1008 if (cyls
|| secs
|| heads
) {
1010 "qemu: '%s' invalid physical CHS format\n", buf
);
1013 media
= MEDIA_CDROM
;
1015 fprintf(stderr
, "qemu: '%s' invalid media\n", buf
);
1020 if ((buf
= qemu_opt_get(opts
, "cache")) != NULL
) {
1021 if (!strcmp(buf
, "off") || !strcmp(buf
, "none"))
1023 else if (!strcmp(buf
, "writethrough"))
1025 else if (!strcmp(buf
, "writeback"))
1028 fprintf(stderr
, "qemu: invalid cache option\n");
1033 #ifdef CONFIG_LINUX_AIO
1034 if ((buf
= qemu_opt_get(opts
, "aio")) != NULL
) {
1035 if (!strcmp(buf
, "threads"))
1037 else if (!strcmp(buf
, "native"))
1040 fprintf(stderr
, "qemu: invalid aio option\n");
1046 if ((buf
= qemu_opt_get(opts
, "format")) != NULL
) {
1047 if (strcmp(buf
, "?") == 0) {
1048 fprintf(stderr
, "qemu: Supported formats:");
1049 bdrv_iterate_format(bdrv_format_print
, NULL
);
1050 fprintf(stderr
, "\n");
1053 drv
= bdrv_find_whitelisted_format(buf
);
1055 fprintf(stderr
, "qemu: '%s' invalid format\n", buf
);
1060 on_write_error
= BLOCK_ERR_STOP_ENOSPC
;
1061 if ((buf
= qemu_opt_get(opts
, "werror")) != NULL
) {
1062 if (type
!= IF_IDE
&& type
!= IF_SCSI
&& type
!= IF_VIRTIO
) {
1063 fprintf(stderr
, "werror is no supported by this format\n");
1067 on_write_error
= parse_block_error_action(buf
, 0);
1068 if (on_write_error
< 0) {
1073 on_read_error
= BLOCK_ERR_REPORT
;
1074 if ((buf
= qemu_opt_get(opts
, "rerror")) != NULL
) {
1075 if (type
!= IF_IDE
&& type
!= IF_VIRTIO
) {
1076 fprintf(stderr
, "rerror is no supported by this format\n");
1080 on_read_error
= parse_block_error_action(buf
, 1);
1081 if (on_read_error
< 0) {
1086 if ((devaddr
= qemu_opt_get(opts
, "addr")) != NULL
) {
1087 if (type
!= IF_VIRTIO
) {
1088 fprintf(stderr
, "addr is not supported\n");
1093 /* compute bus and unit according index */
1096 if (bus_id
!= 0 || unit_id
!= -1) {
1098 "qemu: index cannot be used with bus and unit\n");
1106 unit_id
= index
% max_devs
;
1107 bus_id
= index
/ max_devs
;
1111 /* if user doesn't specify a unit_id,
1112 * try to find the first free
1115 if (unit_id
== -1) {
1117 while (drive_get(type
, bus_id
, unit_id
) != NULL
) {
1119 if (max_devs
&& unit_id
>= max_devs
) {
1120 unit_id
-= max_devs
;
1128 if (max_devs
&& unit_id
>= max_devs
) {
1129 fprintf(stderr
, "qemu: unit %d too big (max is %d)\n",
1130 unit_id
, max_devs
- 1);
1135 * ignore multiple definitions
1138 if (drive_get(type
, bus_id
, unit_id
) != NULL
) {
1145 dinfo
= qemu_mallocz(sizeof(*dinfo
));
1146 if ((buf
= qemu_opts_id(opts
)) != NULL
) {
1147 dinfo
->id
= qemu_strdup(buf
);
1149 /* no id supplied -> create one */
1150 dinfo
->id
= qemu_mallocz(32);
1151 if (type
== IF_IDE
|| type
== IF_SCSI
)
1152 mediastr
= (media
== MEDIA_CDROM
) ? "-cd" : "-hd";
1154 snprintf(dinfo
->id
, 32, "%s%i%s%i",
1155 devname
, bus_id
, mediastr
, unit_id
);
1157 snprintf(dinfo
->id
, 32, "%s%s%i",
1158 devname
, mediastr
, unit_id
);
1160 dinfo
->bdrv
= bdrv_new(dinfo
->id
);
1161 dinfo
->devaddr
= devaddr
;
1163 dinfo
->bus
= bus_id
;
1164 dinfo
->unit
= unit_id
;
1165 dinfo
->on_read_error
= on_read_error
;
1166 dinfo
->on_write_error
= on_write_error
;
1169 strncpy(dinfo
->serial
, serial
, sizeof(serial
));
1170 QTAILQ_INSERT_TAIL(&drives
, dinfo
, next
);
1180 bdrv_set_geometry_hint(dinfo
->bdrv
, cyls
, heads
, secs
);
1181 bdrv_set_translation_hint(dinfo
->bdrv
, translation
);
1185 bdrv_set_type_hint(dinfo
->bdrv
, BDRV_TYPE_CDROM
);
1190 /* FIXME: This isn't really a floppy, but it's a reasonable
1193 bdrv_set_type_hint(dinfo
->bdrv
, BDRV_TYPE_FLOPPY
);
1199 /* add virtio block device */
1200 opts
= qemu_opts_create(&qemu_device_opts
, NULL
, 0);
1201 qemu_opt_set(opts
, "driver", "virtio-blk-pci");
1202 qemu_opt_set(opts
, "drive", dinfo
->id
);
1204 qemu_opt_set(opts
, "addr", devaddr
);
1215 bdrv_flags
|= BDRV_O_SNAPSHOT
;
1216 cache
= 2; /* always use write-back with snapshot */
1218 if (cache
== 0) /* no caching */
1219 bdrv_flags
|= BDRV_O_NOCACHE
;
1220 else if (cache
== 2) /* write-back */
1221 bdrv_flags
|= BDRV_O_CACHE_WB
;
1224 bdrv_flags
|= BDRV_O_NATIVE_AIO
;
1226 bdrv_flags
&= ~BDRV_O_NATIVE_AIO
;
1230 if (type
!= IF_SCSI
&& type
!= IF_VIRTIO
&& type
!= IF_FLOPPY
) {
1231 fprintf(stderr
, "qemu: readonly flag not supported for drive with this interface\n");
1236 * cdrom is read-only. Set it now, after above interface checking
1237 * since readonly attribute not explicitly required, so no error.
1239 if (media
== MEDIA_CDROM
) {
1242 bdrv_flags
|= ro
? 0 : BDRV_O_RDWR
;
1244 if (bdrv_open2(dinfo
->bdrv
, file
, bdrv_flags
, drv
) < 0) {
1245 fprintf(stderr
, "qemu: could not open disk image %s: %s\n",
1246 file
, strerror(errno
));
1250 if (bdrv_key_required(dinfo
->bdrv
))
1256 static int drive_init_func(QemuOpts
*opts
, void *opaque
)
1258 QEMUMachine
*machine
= opaque
;
1259 int fatal_error
= 0;
1261 if (drive_init(opts
, machine
, &fatal_error
) == NULL
) {
1268 static int drive_enable_snapshot(QemuOpts
*opts
, void *opaque
)
1270 if (NULL
== qemu_opt_get(opts
, "snapshot")) {
1271 qemu_opt_set(opts
, "snapshot", "on");
1276 void qemu_register_boot_set(QEMUBootSetHandler
*func
, void *opaque
)
1278 boot_set_handler
= func
;
1279 boot_set_opaque
= opaque
;
1282 int qemu_boot_set(const char *boot_devices
)
1284 if (!boot_set_handler
) {
1287 return boot_set_handler(boot_set_opaque
, boot_devices
);
1290 static int parse_bootdevices(char *devices
)
1292 /* We just do some generic consistency checks */
1296 for (p
= devices
; *p
!= '\0'; p
++) {
1297 /* Allowed boot devices are:
1298 * a-b: floppy disk drives
1299 * c-f: IDE disk drives
1300 * g-m: machine implementation dependant drives
1301 * n-p: network devices
1302 * It's up to each machine implementation to check if the given boot
1303 * devices match the actual hardware implementation and firmware
1306 if (*p
< 'a' || *p
> 'p') {
1307 fprintf(stderr
, "Invalid boot device '%c'\n", *p
);
1310 if (bitmap
& (1 << (*p
- 'a'))) {
1311 fprintf(stderr
, "Boot device '%c' was given twice\n", *p
);
1314 bitmap
|= 1 << (*p
- 'a');
1319 static void restore_boot_devices(void *opaque
)
1321 char *standard_boot_devices
= opaque
;
1323 qemu_boot_set(standard_boot_devices
);
1325 qemu_unregister_reset(restore_boot_devices
, standard_boot_devices
);
1326 qemu_free(standard_boot_devices
);
1329 static void numa_add(const char *optarg
)
1333 unsigned long long value
, endvalue
;
1336 optarg
= get_opt_name(option
, 128, optarg
, ',') + 1;
1337 if (!strcmp(option
, "node")) {
1338 if (get_param_value(option
, 128, "nodeid", optarg
) == 0) {
1339 nodenr
= nb_numa_nodes
;
1341 nodenr
= strtoull(option
, NULL
, 10);
1344 if (get_param_value(option
, 128, "mem", optarg
) == 0) {
1345 node_mem
[nodenr
] = 0;
1347 value
= strtoull(option
, &endptr
, 0);
1349 case 0: case 'M': case 'm':
1356 node_mem
[nodenr
] = value
;
1358 if (get_param_value(option
, 128, "cpus", optarg
) == 0) {
1359 node_cpumask
[nodenr
] = 0;
1361 value
= strtoull(option
, &endptr
, 10);
1364 fprintf(stderr
, "only 64 CPUs in NUMA mode supported.\n");
1366 if (*endptr
== '-') {
1367 endvalue
= strtoull(endptr
+1, &endptr
, 10);
1368 if (endvalue
>= 63) {
1371 "only 63 CPUs in NUMA mode supported.\n");
1373 value
= (2ULL << endvalue
) - (1ULL << value
);
1375 value
= 1ULL << value
;
1378 node_cpumask
[nodenr
] = value
;
1385 static void smp_parse(const char *optarg
)
1387 int smp
, sockets
= 0, threads
= 0, cores
= 0;
1391 smp
= strtoul(optarg
, &endptr
, 10);
1392 if (endptr
!= optarg
) {
1393 if (*endptr
== ',') {
1397 if (get_param_value(option
, 128, "sockets", endptr
) != 0)
1398 sockets
= strtoull(option
, NULL
, 10);
1399 if (get_param_value(option
, 128, "cores", endptr
) != 0)
1400 cores
= strtoull(option
, NULL
, 10);
1401 if (get_param_value(option
, 128, "threads", endptr
) != 0)
1402 threads
= strtoull(option
, NULL
, 10);
1403 if (get_param_value(option
, 128, "maxcpus", endptr
) != 0)
1404 max_cpus
= strtoull(option
, NULL
, 10);
1406 /* compute missing values, prefer sockets over cores over threads */
1407 if (smp
== 0 || sockets
== 0) {
1408 sockets
= sockets
> 0 ? sockets
: 1;
1409 cores
= cores
> 0 ? cores
: 1;
1410 threads
= threads
> 0 ? threads
: 1;
1412 smp
= cores
* threads
* sockets
;
1416 threads
= threads
> 0 ? threads
: 1;
1417 cores
= smp
/ (sockets
* threads
);
1420 threads
= smp
/ (cores
* sockets
);
1425 smp_cores
= cores
> 0 ? cores
: 1;
1426 smp_threads
= threads
> 0 ? threads
: 1;
1428 max_cpus
= smp_cpus
;
1431 /***********************************************************/
1434 static int usb_device_add(const char *devname
, int is_hotplug
)
1437 USBDevice
*dev
= NULL
;
1442 /* drivers with .usbdevice_name entry in USBDeviceInfo */
1443 dev
= usbdevice_create(devname
);
1447 /* the other ones */
1448 if (strstart(devname
, "host:", &p
)) {
1449 dev
= usb_host_device_open(p
);
1450 } else if (!strcmp(devname
, "bt") || strstart(devname
, "bt:", &p
)) {
1451 dev
= usb_bt_init(devname
[2] ? hci_init(p
) :
1452 bt_new_hci(qemu_find_bt_vlan(0)));
1463 static int usb_device_del(const char *devname
)
1468 if (strstart(devname
, "host:", &p
))
1469 return usb_host_device_close(p
);
1474 p
= strchr(devname
, '.');
1477 bus_num
= strtoul(devname
, NULL
, 0);
1478 addr
= strtoul(p
+ 1, NULL
, 0);
1480 return usb_device_delete_addr(bus_num
, addr
);
1483 static int usb_parse(const char *cmdline
)
1486 r
= usb_device_add(cmdline
, 0);
1488 fprintf(stderr
, "qemu: could not add USB device '%s'\n", cmdline
);
1493 void do_usb_add(Monitor
*mon
, const QDict
*qdict
)
1495 const char *devname
= qdict_get_str(qdict
, "devname");
1496 if (usb_device_add(devname
, 1) < 0) {
1497 error_report("could not add USB device '%s'", devname
);
1501 void do_usb_del(Monitor
*mon
, const QDict
*qdict
)
1503 const char *devname
= qdict_get_str(qdict
, "devname");
1504 if (usb_device_del(devname
) < 0) {
1505 error_report("could not delete USB device '%s'", devname
);
1509 /***********************************************************/
1510 /* PCMCIA/Cardbus */
1512 static struct pcmcia_socket_entry_s
{
1513 PCMCIASocket
*socket
;
1514 struct pcmcia_socket_entry_s
*next
;
1515 } *pcmcia_sockets
= 0;
1517 void pcmcia_socket_register(PCMCIASocket
*socket
)
1519 struct pcmcia_socket_entry_s
*entry
;
1521 entry
= qemu_malloc(sizeof(struct pcmcia_socket_entry_s
));
1522 entry
->socket
= socket
;
1523 entry
->next
= pcmcia_sockets
;
1524 pcmcia_sockets
= entry
;
1527 void pcmcia_socket_unregister(PCMCIASocket
*socket
)
1529 struct pcmcia_socket_entry_s
*entry
, **ptr
;
1531 ptr
= &pcmcia_sockets
;
1532 for (entry
= *ptr
; entry
; ptr
= &entry
->next
, entry
= *ptr
)
1533 if (entry
->socket
== socket
) {
1539 void pcmcia_info(Monitor
*mon
)
1541 struct pcmcia_socket_entry_s
*iter
;
1543 if (!pcmcia_sockets
)
1544 monitor_printf(mon
, "No PCMCIA sockets\n");
1546 for (iter
= pcmcia_sockets
; iter
; iter
= iter
->next
)
1547 monitor_printf(mon
, "%s: %s\n", iter
->socket
->slot_string
,
1548 iter
->socket
->attached
? iter
->socket
->card_string
:
1552 /***********************************************************/
1555 typedef struct IOHandlerRecord
{
1557 IOCanReadHandler
*fd_read_poll
;
1559 IOHandler
*fd_write
;
1562 /* temporary data */
1564 QLIST_ENTRY(IOHandlerRecord
) next
;
1567 static QLIST_HEAD(, IOHandlerRecord
) io_handlers
=
1568 QLIST_HEAD_INITIALIZER(io_handlers
);
1571 /* XXX: fd_read_poll should be suppressed, but an API change is
1572 necessary in the character devices to suppress fd_can_read(). */
1573 int qemu_set_fd_handler2(int fd
,
1574 IOCanReadHandler
*fd_read_poll
,
1576 IOHandler
*fd_write
,
1579 IOHandlerRecord
*ioh
;
1581 if (!fd_read
&& !fd_write
) {
1582 QLIST_FOREACH(ioh
, &io_handlers
, next
) {
1583 if (ioh
->fd
== fd
) {
1589 QLIST_FOREACH(ioh
, &io_handlers
, next
) {
1593 ioh
= qemu_mallocz(sizeof(IOHandlerRecord
));
1594 QLIST_INSERT_HEAD(&io_handlers
, ioh
, next
);
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 QLIST_FOREACH(ioh
, &io_handlers
, 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 QLIST_FOREACH_SAFE(ioh
, &io_handlers
, next
, pioh
) {
2845 QLIST_REMOVE(ioh
, next
);
2849 if (ioh
->fd_read
&& FD_ISSET(ioh
->fd
, &rfds
)) {
2850 ioh
->fd_read(ioh
->opaque
);
2852 if (ioh
->fd_write
&& FD_ISSET(ioh
->fd
, &wfds
)) {
2853 ioh
->fd_write(ioh
->opaque
);
2858 slirp_select_poll(&rfds
, &wfds
, &xfds
, (ret
< 0));
2860 qemu_run_all_timers();
2862 /* Check bottom-halves last in case any of the earlier events triggered
2868 static int qemu_cpu_exec(CPUState
*env
)
2871 #ifdef CONFIG_PROFILER
2875 #ifdef CONFIG_PROFILER
2876 ti
= profile_getclock();
2881 qemu_icount
-= (env
->icount_decr
.u16
.low
+ env
->icount_extra
);
2882 env
->icount_decr
.u16
.low
= 0;
2883 env
->icount_extra
= 0;
2884 count
= qemu_icount_round (qemu_next_deadline());
2885 qemu_icount
+= count
;
2886 decr
= (count
> 0xffff) ? 0xffff : count
;
2888 env
->icount_decr
.u16
.low
= decr
;
2889 env
->icount_extra
= count
;
2891 ret
= cpu_exec(env
);
2892 #ifdef CONFIG_PROFILER
2893 qemu_time
+= profile_getclock() - ti
;
2896 /* Fold pending instructions back into the
2897 instruction counter, and clear the interrupt flag. */
2898 qemu_icount
-= (env
->icount_decr
.u16
.low
2899 + env
->icount_extra
);
2900 env
->icount_decr
.u32
= 0;
2901 env
->icount_extra
= 0;
2906 static bool tcg_cpu_exec(void)
2910 if (next_cpu
== NULL
)
2911 next_cpu
= first_cpu
;
2912 for (; next_cpu
!= NULL
; next_cpu
= next_cpu
->next_cpu
) {
2913 CPUState
*env
= cur_cpu
= next_cpu
;
2915 qemu_clock_enable(vm_clock
,
2916 (cur_cpu
->singlestep_enabled
& SSTEP_NOTIMER
) == 0);
2918 if (qemu_alarm_pending())
2920 if (cpu_can_run(env
))
2921 ret
= qemu_cpu_exec(env
);
2925 if (ret
== EXCP_DEBUG
) {
2926 gdb_set_stop_cpu(env
);
2927 debug_requested
= EXCP_DEBUG
;
2931 return tcg_has_work();
2934 static void set_numa_modes(void)
2939 for (env
= first_cpu
; env
!= NULL
; env
= env
->next_cpu
) {
2940 for (i
= 0; i
< nb_numa_nodes
; i
++) {
2941 if (node_cpumask
[i
] & (1 << env
->cpu_index
)) {
2948 static int vm_can_run(void)
2950 if (powerdown_requested
)
2952 if (reset_requested
)
2954 if (shutdown_requested
)
2956 if (debug_requested
)
2961 qemu_irq qemu_system_powerdown
;
2963 static void main_loop(void)
2967 #ifdef CONFIG_IOTHREAD
2968 qemu_system_ready
= 1;
2969 qemu_cond_broadcast(&qemu_system_cond
);
2974 bool nonblocking
= false;
2975 #ifdef CONFIG_PROFILER
2978 #ifndef CONFIG_IOTHREAD
2979 nonblocking
= tcg_cpu_exec();
2981 #ifdef CONFIG_PROFILER
2982 ti
= profile_getclock();
2984 main_loop_wait(nonblocking
);
2985 #ifdef CONFIG_PROFILER
2986 dev_time
+= profile_getclock() - ti
;
2988 } while (vm_can_run());
2990 if ((r
= qemu_debug_requested())) {
2993 if (qemu_shutdown_requested()) {
2994 monitor_protocol_event(QEVENT_SHUTDOWN
, NULL
);
3001 if (qemu_reset_requested()) {
3003 qemu_system_reset();
3006 if (qemu_powerdown_requested()) {
3007 monitor_protocol_event(QEVENT_POWERDOWN
, NULL
);
3008 qemu_irq_raise(qemu_system_powerdown
);
3010 if ((r
= qemu_vmstop_requested())) {
3017 static void version(void)
3019 printf("QEMU PC emulator version " QEMU_VERSION QEMU_PKGVERSION
", Copyright (c) 2003-2008 Fabrice Bellard\n");
3022 static void help(int exitcode
)
3024 const char *options_help
=
3025 #define DEF(option, opt_arg, opt_enum, opt_help) \
3027 #define DEFHEADING(text) stringify(text) "\n"
3028 #include "qemu-options.h"
3034 printf("usage: %s [options] [disk_image]\n"
3036 "'disk_image' is a raw hard image image for IDE hard disk 0\n"
3039 "During emulation, the following keys are useful:\n"
3040 "ctrl-alt-f toggle full screen\n"
3041 "ctrl-alt-n switch to virtual console 'n'\n"
3042 "ctrl-alt toggle mouse and keyboard grab\n"
3044 "When using -nographic, press 'ctrl-a h' to get some help.\n",
3050 #define HAS_ARG 0x0001
3053 #define DEF(option, opt_arg, opt_enum, opt_help) \
3055 #define DEFHEADING(text)
3056 #include "qemu-options.h"
3062 typedef struct QEMUOption
{
3068 static const QEMUOption qemu_options
[] = {
3069 { "h", 0, QEMU_OPTION_h
},
3070 #define DEF(option, opt_arg, opt_enum, opt_help) \
3071 { option, opt_arg, opt_enum },
3072 #define DEFHEADING(text)
3073 #include "qemu-options.h"
3081 struct soundhw soundhw
[] = {
3082 #ifdef HAS_AUDIO_CHOICE
3083 #if defined(TARGET_I386) || defined(TARGET_MIPS)
3089 { .init_isa
= pcspk_audio_init
}
3096 "Creative Sound Blaster 16",
3099 { .init_isa
= SB16_init
}
3103 #ifdef CONFIG_CS4231A
3109 { .init_isa
= cs4231a_init
}
3117 "Yamaha YMF262 (OPL3)",
3119 "Yamaha YM3812 (OPL2)",
3123 { .init_isa
= Adlib_init
}
3130 "Gravis Ultrasound GF1",
3133 { .init_isa
= GUS_init
}
3140 "Intel 82801AA AC97 Audio",
3143 { .init_pci
= ac97_init
}
3147 #ifdef CONFIG_ES1370
3150 "ENSONIQ AudioPCI ES1370",
3153 { .init_pci
= es1370_init
}
3157 #endif /* HAS_AUDIO_CHOICE */
3159 { NULL
, NULL
, 0, 0, { NULL
} }
3162 static void select_soundhw (const char *optarg
)
3166 if (*optarg
== '?') {
3169 printf ("Valid sound card names (comma separated):\n");
3170 for (c
= soundhw
; c
->name
; ++c
) {
3171 printf ("%-11s %s\n", c
->name
, c
->descr
);
3173 printf ("\n-soundhw all will enable all of the above\n");
3174 exit (*optarg
!= '?');
3182 if (!strcmp (optarg
, "all")) {
3183 for (c
= soundhw
; c
->name
; ++c
) {
3191 e
= strchr (p
, ',');
3192 l
= !e
? strlen (p
) : (size_t) (e
- p
);
3194 for (c
= soundhw
; c
->name
; ++c
) {
3195 if (!strncmp (c
->name
, p
, l
) && !c
->name
[l
]) {
3204 "Unknown sound card name (too big to show)\n");
3207 fprintf (stderr
, "Unknown sound card name `%.*s'\n",
3212 p
+= l
+ (e
!= NULL
);
3216 goto show_valid_cards
;
3221 static void select_vgahw (const char *p
)
3226 vga_interface_type
= VGA_NONE
;
3227 if (strstart(p
, "std", &opts
)) {
3228 vga_interface_type
= VGA_STD
;
3229 } else if (strstart(p
, "cirrus", &opts
)) {
3230 vga_interface_type
= VGA_CIRRUS
;
3231 } else if (strstart(p
, "vmware", &opts
)) {
3232 vga_interface_type
= VGA_VMWARE
;
3233 } else if (strstart(p
, "xenfb", &opts
)) {
3234 vga_interface_type
= VGA_XENFB
;
3235 } else if (!strstart(p
, "none", &opts
)) {
3237 fprintf(stderr
, "Unknown vga type: %s\n", p
);
3241 const char *nextopt
;
3243 if (strstart(opts
, ",retrace=", &nextopt
)) {
3245 if (strstart(opts
, "dumb", &nextopt
))
3246 vga_retrace_method
= VGA_RETRACE_DUMB
;
3247 else if (strstart(opts
, "precise", &nextopt
))
3248 vga_retrace_method
= VGA_RETRACE_PRECISE
;
3249 else goto invalid_vga
;
3250 } else goto invalid_vga
;
3256 static int balloon_parse(const char *arg
)
3260 if (strcmp(arg
, "none") == 0) {
3264 if (!strncmp(arg
, "virtio", 6)) {
3265 if (arg
[6] == ',') {
3266 /* have params -> parse them */
3267 opts
= qemu_opts_parse(&qemu_device_opts
, arg
+7, 0);
3271 /* create empty opts */
3272 opts
= qemu_opts_create(&qemu_device_opts
, NULL
, 0);
3274 qemu_opt_set(opts
, "driver", "virtio-balloon-pci");
3283 static BOOL WINAPI
qemu_ctrl_handler(DWORD type
)
3285 exit(STATUS_CONTROL_C_EXIT
);
3290 int qemu_uuid_parse(const char *str
, uint8_t *uuid
)
3294 if(strlen(str
) != 36)
3297 ret
= sscanf(str
, UUID_FMT
, &uuid
[0], &uuid
[1], &uuid
[2], &uuid
[3],
3298 &uuid
[4], &uuid
[5], &uuid
[6], &uuid
[7], &uuid
[8], &uuid
[9],
3299 &uuid
[10], &uuid
[11], &uuid
[12], &uuid
[13], &uuid
[14], &uuid
[15]);
3305 smbios_add_field(1, offsetof(struct smbios_type_1
, uuid
), 16, uuid
);
3313 static void termsig_handler(int signal
)
3315 qemu_system_shutdown_request();
3318 static void sigchld_handler(int signal
)
3320 waitpid(-1, NULL
, WNOHANG
);
3323 static void sighandler_setup(void)
3325 struct sigaction act
;
3327 memset(&act
, 0, sizeof(act
));
3328 act
.sa_handler
= termsig_handler
;
3329 sigaction(SIGINT
, &act
, NULL
);
3330 sigaction(SIGHUP
, &act
, NULL
);
3331 sigaction(SIGTERM
, &act
, NULL
);
3333 act
.sa_handler
= sigchld_handler
;
3334 act
.sa_flags
= SA_NOCLDSTOP
;
3335 sigaction(SIGCHLD
, &act
, NULL
);
3341 /* Look for support files in the same directory as the executable. */
3342 static char *find_datadir(const char *argv0
)
3348 len
= GetModuleFileName(NULL
, buf
, sizeof(buf
) - 1);
3355 while (p
!= buf
&& *p
!= '\\')
3358 if (access(buf
, R_OK
) == 0) {
3359 return qemu_strdup(buf
);
3365 /* Find a likely location for support files using the location of the binary.
3366 For installed binaries this will be "$bindir/../share/qemu". When
3367 running from the build tree this will be "$bindir/../pc-bios". */
3368 #define SHARE_SUFFIX "/share/qemu"
3369 #define BUILD_SUFFIX "/pc-bios"
3370 static char *find_datadir(const char *argv0
)
3378 #if defined(__linux__)
3381 len
= readlink("/proc/self/exe", buf
, sizeof(buf
) - 1);
3387 #elif defined(__FreeBSD__)
3390 len
= readlink("/proc/curproc/file", buf
, sizeof(buf
) - 1);
3397 /* If we don't have any way of figuring out the actual executable
3398 location then try argv[0]. */
3400 p
= realpath(argv0
, buf
);
3408 max_len
= strlen(dir
) +
3409 MAX(strlen(SHARE_SUFFIX
), strlen(BUILD_SUFFIX
)) + 1;
3410 res
= qemu_mallocz(max_len
);
3411 snprintf(res
, max_len
, "%s%s", dir
, SHARE_SUFFIX
);
3412 if (access(res
, R_OK
)) {
3413 snprintf(res
, max_len
, "%s%s", dir
, BUILD_SUFFIX
);
3414 if (access(res
, R_OK
)) {
3426 char *qemu_find_file(int type
, const char *name
)
3432 /* If name contains path separators then try it as a straight path. */
3433 if ((strchr(name
, '/') || strchr(name
, '\\'))
3434 && access(name
, R_OK
) == 0) {
3435 return qemu_strdup(name
);
3438 case QEMU_FILE_TYPE_BIOS
:
3441 case QEMU_FILE_TYPE_KEYMAP
:
3442 subdir
= "keymaps/";
3447 len
= strlen(data_dir
) + strlen(name
) + strlen(subdir
) + 2;
3448 buf
= qemu_mallocz(len
);
3449 snprintf(buf
, len
, "%s/%s%s", data_dir
, subdir
, name
);
3450 if (access(buf
, R_OK
)) {
3457 static int device_help_func(QemuOpts
*opts
, void *opaque
)
3459 return qdev_device_help(opts
);
3462 static int device_init_func(QemuOpts
*opts
, void *opaque
)
3466 dev
= qdev_device_add(opts
);
3472 static int chardev_init_func(QemuOpts
*opts
, void *opaque
)
3474 CharDriverState
*chr
;
3476 chr
= qemu_chr_open_opts(opts
, NULL
);
3482 static int mon_init_func(QemuOpts
*opts
, void *opaque
)
3484 CharDriverState
*chr
;
3485 const char *chardev
;
3489 mode
= qemu_opt_get(opts
, "mode");
3493 if (strcmp(mode
, "readline") == 0) {
3494 flags
= MONITOR_USE_READLINE
;
3495 } else if (strcmp(mode
, "control") == 0) {
3496 flags
= MONITOR_USE_CONTROL
;
3498 fprintf(stderr
, "unknown monitor mode \"%s\"\n", mode
);
3502 if (qemu_opt_get_bool(opts
, "default", 0))
3503 flags
|= MONITOR_IS_DEFAULT
;
3505 chardev
= qemu_opt_get(opts
, "chardev");
3506 chr
= qemu_chr_find(chardev
);
3508 fprintf(stderr
, "chardev \"%s\" not found\n", chardev
);
3512 monitor_init(chr
, flags
);
3516 static void monitor_parse(const char *optarg
, const char *mode
)
3518 static int monitor_device_index
= 0;
3524 if (strstart(optarg
, "chardev:", &p
)) {
3525 snprintf(label
, sizeof(label
), "%s", p
);
3527 if (monitor_device_index
) {
3528 snprintf(label
, sizeof(label
), "monitor%d",
3529 monitor_device_index
);
3531 snprintf(label
, sizeof(label
), "monitor");
3534 opts
= qemu_chr_parse_compat(label
, optarg
);
3536 fprintf(stderr
, "parse error: %s\n", optarg
);
3541 opts
= qemu_opts_create(&qemu_mon_opts
, label
, 1);
3543 fprintf(stderr
, "duplicate chardev: %s\n", label
);
3546 qemu_opt_set(opts
, "mode", mode
);
3547 qemu_opt_set(opts
, "chardev", label
);
3549 qemu_opt_set(opts
, "default", "on");
3550 monitor_device_index
++;
3553 struct device_config
{
3555 DEV_USB
, /* -usbdevice */
3557 DEV_SERIAL
, /* -serial */
3558 DEV_PARALLEL
, /* -parallel */
3559 DEV_VIRTCON
, /* -virtioconsole */
3560 DEV_DEBUGCON
, /* -debugcon */
3562 const char *cmdline
;
3563 QTAILQ_ENTRY(device_config
) next
;
3565 QTAILQ_HEAD(, device_config
) device_configs
= QTAILQ_HEAD_INITIALIZER(device_configs
);
3567 static void add_device_config(int type
, const char *cmdline
)
3569 struct device_config
*conf
;
3571 conf
= qemu_mallocz(sizeof(*conf
));
3573 conf
->cmdline
= cmdline
;
3574 QTAILQ_INSERT_TAIL(&device_configs
, conf
, next
);
3577 static int foreach_device_config(int type
, int (*func
)(const char *cmdline
))
3579 struct device_config
*conf
;
3582 QTAILQ_FOREACH(conf
, &device_configs
, next
) {
3583 if (conf
->type
!= type
)
3585 rc
= func(conf
->cmdline
);
3592 static int serial_parse(const char *devname
)
3594 static int index
= 0;
3597 if (strcmp(devname
, "none") == 0)
3599 if (index
== MAX_SERIAL_PORTS
) {
3600 fprintf(stderr
, "qemu: too many serial ports\n");
3603 snprintf(label
, sizeof(label
), "serial%d", index
);
3604 serial_hds
[index
] = qemu_chr_open(label
, devname
, NULL
);
3605 if (!serial_hds
[index
]) {
3606 fprintf(stderr
, "qemu: could not open serial device '%s': %s\n",
3607 devname
, strerror(errno
));
3614 static int parallel_parse(const char *devname
)
3616 static int index
= 0;
3619 if (strcmp(devname
, "none") == 0)
3621 if (index
== MAX_PARALLEL_PORTS
) {
3622 fprintf(stderr
, "qemu: too many parallel ports\n");
3625 snprintf(label
, sizeof(label
), "parallel%d", index
);
3626 parallel_hds
[index
] = qemu_chr_open(label
, devname
, NULL
);
3627 if (!parallel_hds
[index
]) {
3628 fprintf(stderr
, "qemu: could not open parallel device '%s': %s\n",
3629 devname
, strerror(errno
));
3636 static int virtcon_parse(const char *devname
)
3638 static int index
= 0;
3640 QemuOpts
*bus_opts
, *dev_opts
;
3642 if (strcmp(devname
, "none") == 0)
3644 if (index
== MAX_VIRTIO_CONSOLES
) {
3645 fprintf(stderr
, "qemu: too many virtio consoles\n");
3649 bus_opts
= qemu_opts_create(&qemu_device_opts
, NULL
, 0);
3650 qemu_opt_set(bus_opts
, "driver", "virtio-serial");
3652 dev_opts
= qemu_opts_create(&qemu_device_opts
, NULL
, 0);
3653 qemu_opt_set(dev_opts
, "driver", "virtconsole");
3655 snprintf(label
, sizeof(label
), "virtcon%d", index
);
3656 virtcon_hds
[index
] = qemu_chr_open(label
, devname
, NULL
);
3657 if (!virtcon_hds
[index
]) {
3658 fprintf(stderr
, "qemu: could not open virtio console '%s': %s\n",
3659 devname
, strerror(errno
));
3662 qemu_opt_set(dev_opts
, "chardev", label
);
3668 static int debugcon_parse(const char *devname
)
3672 if (!qemu_chr_open("debugcon", devname
, NULL
)) {
3675 opts
= qemu_opts_create(&qemu_device_opts
, "debugcon", 1);
3677 fprintf(stderr
, "qemu: already have a debugcon device\n");
3680 qemu_opt_set(opts
, "driver", "isa-debugcon");
3681 qemu_opt_set(opts
, "chardev", "debugcon");
3685 static const QEMUOption
*lookup_opt(int argc
, char **argv
,
3686 const char **poptarg
, int *poptind
)
3688 const QEMUOption
*popt
;
3689 int optind
= *poptind
;
3690 char *r
= argv
[optind
];
3693 loc_set_cmdline(argv
, optind
, 1);
3695 /* Treat --foo the same as -foo. */
3698 popt
= qemu_options
;
3701 error_report("invalid option");
3704 if (!strcmp(popt
->name
, r
+ 1))
3708 if (popt
->flags
& HAS_ARG
) {
3709 if (optind
>= argc
) {
3710 error_report("requires an argument");
3713 optarg
= argv
[optind
++];
3714 loc_set_cmdline(argv
, optind
- 2, 2);
3725 int main(int argc
, char **argv
, char **envp
)
3727 const char *gdbstub_dev
= NULL
;
3728 uint32_t boot_devices_bitmap
= 0;
3730 int snapshot
, linux_boot
, net_boot
;
3731 const char *icount_option
= NULL
;
3732 const char *initrd_filename
;
3733 const char *kernel_filename
, *kernel_cmdline
;
3734 char boot_devices
[33] = "cad"; /* default to HD->floppy->CD-ROM */
3736 DisplayChangeListener
*dcl
;
3737 int cyls
, heads
, secs
, translation
;
3738 QemuOpts
*hda_opts
= NULL
, *opts
;
3741 const char *loadvm
= NULL
;
3742 QEMUMachine
*machine
;
3743 const char *cpu_model
;
3748 const char *pid_file
= NULL
;
3749 const char *incoming
= NULL
;
3752 struct passwd
*pwd
= NULL
;
3753 const char *chroot_dir
= NULL
;
3754 const char *run_as
= NULL
;
3756 int show_vnc_port
= 0;
3759 error_set_progname(argv
[0]);
3763 qemu_cache_utils_init(envp
);
3765 QLIST_INIT (&vm_change_state_head
);
3768 struct sigaction act
;
3769 sigfillset(&act
.sa_mask
);
3771 act
.sa_handler
= SIG_IGN
;
3772 sigaction(SIGPIPE
, &act
, NULL
);
3775 SetConsoleCtrlHandler(qemu_ctrl_handler
, TRUE
);
3776 /* Note: cpu_interrupt() is currently not SMP safe, so we force
3777 QEMU to run on a single CPU */
3782 h
= GetCurrentProcess();
3783 if (GetProcessAffinityMask(h
, &mask
, &smask
)) {
3784 for(i
= 0; i
< 32; i
++) {
3785 if (mask
& (1 << i
))
3790 SetProcessAffinityMask(h
, mask
);
3796 module_call_init(MODULE_INIT_MACHINE
);
3797 machine
= find_default_machine();
3799 initrd_filename
= NULL
;
3802 kernel_filename
= NULL
;
3803 kernel_cmdline
= "";
3804 cyls
= heads
= secs
= 0;
3805 translation
= BIOS_ATA_TRANSLATION_AUTO
;
3807 for (i
= 0; i
< MAX_NODES
; i
++) {
3809 node_cpumask
[i
] = 0;
3818 /* first pass of option parsing */
3820 while (optind
< argc
) {
3821 if (argv
[optind
][0] != '-') {
3826 const QEMUOption
*popt
;
3828 popt
= lookup_opt(argc
, argv
, &optarg
, &optind
);
3829 switch (popt
->index
) {
3830 case QEMU_OPTION_nodefconfig
:
3841 fname
= CONFIG_QEMU_CONFDIR
"/qemu.conf";
3842 fp
= fopen(fname
, "r");
3844 if (qemu_config_parse(fp
, fname
) != 0) {
3850 fname
= CONFIG_QEMU_CONFDIR
"/target-" TARGET_ARCH
".conf";
3851 fp
= fopen(fname
, "r");
3853 if (qemu_config_parse(fp
, fname
) != 0) {
3859 #if defined(cpudef_setup)
3860 cpudef_setup(); /* parse cpu definitions in target config file */
3863 /* second pass of option parsing */
3868 if (argv
[optind
][0] != '-') {
3869 hda_opts
= drive_add(argv
[optind
++], HD_ALIAS
, 0);
3871 const QEMUOption
*popt
;
3873 popt
= lookup_opt(argc
, argv
, &optarg
, &optind
);
3874 switch(popt
->index
) {
3876 machine
= find_machine(optarg
);
3879 printf("Supported machines are:\n");
3880 for(m
= first_machine
; m
!= NULL
; m
= m
->next
) {
3882 printf("%-10s %s (alias of %s)\n",
3883 m
->alias
, m
->desc
, m
->name
);
3884 printf("%-10s %s%s\n",
3886 m
->is_default
? " (default)" : "");
3888 exit(*optarg
!= '?');
3891 case QEMU_OPTION_cpu
:
3892 /* hw initialization will check this */
3893 if (*optarg
== '?') {
3894 /* XXX: implement xxx_cpu_list for targets that still miss it */
3895 #if defined(cpu_list_id)
3896 cpu_list_id(stdout
, &fprintf
, optarg
);
3897 #elif defined(cpu_list)
3898 cpu_list(stdout
, &fprintf
); /* deprecated */
3905 case QEMU_OPTION_initrd
:
3906 initrd_filename
= optarg
;
3908 case QEMU_OPTION_hda
:
3910 hda_opts
= drive_add(optarg
, HD_ALIAS
, 0);
3912 hda_opts
= drive_add(optarg
, HD_ALIAS
3913 ",cyls=%d,heads=%d,secs=%d%s",
3914 0, cyls
, heads
, secs
,
3915 translation
== BIOS_ATA_TRANSLATION_LBA
?
3917 translation
== BIOS_ATA_TRANSLATION_NONE
?
3918 ",trans=none" : "");
3920 case QEMU_OPTION_hdb
:
3921 case QEMU_OPTION_hdc
:
3922 case QEMU_OPTION_hdd
:
3923 drive_add(optarg
, HD_ALIAS
, popt
->index
- QEMU_OPTION_hda
);
3925 case QEMU_OPTION_drive
:
3926 drive_add(NULL
, "%s", optarg
);
3928 case QEMU_OPTION_set
:
3929 if (qemu_set_option(optarg
) != 0)
3932 case QEMU_OPTION_global
:
3933 if (qemu_global_option(optarg
) != 0)
3936 case QEMU_OPTION_mtdblock
:
3937 drive_add(optarg
, MTD_ALIAS
);
3939 case QEMU_OPTION_sd
:
3940 drive_add(optarg
, SD_ALIAS
);
3942 case QEMU_OPTION_pflash
:
3943 drive_add(optarg
, PFLASH_ALIAS
);
3945 case QEMU_OPTION_snapshot
:
3948 case QEMU_OPTION_hdachs
:
3952 cyls
= strtol(p
, (char **)&p
, 0);
3953 if (cyls
< 1 || cyls
> 16383)
3958 heads
= strtol(p
, (char **)&p
, 0);
3959 if (heads
< 1 || heads
> 16)
3964 secs
= strtol(p
, (char **)&p
, 0);
3965 if (secs
< 1 || secs
> 63)
3969 if (!strcmp(p
, "none"))
3970 translation
= BIOS_ATA_TRANSLATION_NONE
;
3971 else if (!strcmp(p
, "lba"))
3972 translation
= BIOS_ATA_TRANSLATION_LBA
;
3973 else if (!strcmp(p
, "auto"))
3974 translation
= BIOS_ATA_TRANSLATION_AUTO
;
3977 } else if (*p
!= '\0') {
3979 fprintf(stderr
, "qemu: invalid physical CHS format\n");
3982 if (hda_opts
!= NULL
) {
3984 snprintf(num
, sizeof(num
), "%d", cyls
);
3985 qemu_opt_set(hda_opts
, "cyls", num
);
3986 snprintf(num
, sizeof(num
), "%d", heads
);
3987 qemu_opt_set(hda_opts
, "heads", num
);
3988 snprintf(num
, sizeof(num
), "%d", secs
);
3989 qemu_opt_set(hda_opts
, "secs", num
);
3990 if (translation
== BIOS_ATA_TRANSLATION_LBA
)
3991 qemu_opt_set(hda_opts
, "trans", "lba");
3992 if (translation
== BIOS_ATA_TRANSLATION_NONE
)
3993 qemu_opt_set(hda_opts
, "trans", "none");
3997 case QEMU_OPTION_numa
:
3998 if (nb_numa_nodes
>= MAX_NODES
) {
3999 fprintf(stderr
, "qemu: too many NUMA nodes\n");
4004 case QEMU_OPTION_nographic
:
4005 display_type
= DT_NOGRAPHIC
;
4007 #ifdef CONFIG_CURSES
4008 case QEMU_OPTION_curses
:
4009 display_type
= DT_CURSES
;
4012 case QEMU_OPTION_portrait
:
4015 case QEMU_OPTION_kernel
:
4016 kernel_filename
= optarg
;
4018 case QEMU_OPTION_append
:
4019 kernel_cmdline
= optarg
;
4021 case QEMU_OPTION_cdrom
:
4022 drive_add(optarg
, CDROM_ALIAS
);
4024 case QEMU_OPTION_boot
:
4026 static const char * const params
[] = {
4027 "order", "once", "menu", NULL
4029 char buf
[sizeof(boot_devices
)];
4030 char *standard_boot_devices
;
4033 if (!strchr(optarg
, '=')) {
4035 pstrcpy(buf
, sizeof(buf
), optarg
);
4036 } else if (check_params(buf
, sizeof(buf
), params
, optarg
) < 0) {
4038 "qemu: unknown boot parameter '%s' in '%s'\n",
4044 get_param_value(buf
, sizeof(buf
), "order", optarg
)) {
4045 boot_devices_bitmap
= parse_bootdevices(buf
);
4046 pstrcpy(boot_devices
, sizeof(boot_devices
), buf
);
4049 if (get_param_value(buf
, sizeof(buf
),
4051 boot_devices_bitmap
|= parse_bootdevices(buf
);
4052 standard_boot_devices
= qemu_strdup(boot_devices
);
4053 pstrcpy(boot_devices
, sizeof(boot_devices
), buf
);
4054 qemu_register_reset(restore_boot_devices
,
4055 standard_boot_devices
);
4057 if (get_param_value(buf
, sizeof(buf
),
4059 if (!strcmp(buf
, "on")) {
4061 } else if (!strcmp(buf
, "off")) {
4065 "qemu: invalid option value '%s'\n",
4073 case QEMU_OPTION_fda
:
4074 case QEMU_OPTION_fdb
:
4075 drive_add(optarg
, FD_ALIAS
, popt
->index
- QEMU_OPTION_fda
);
4078 case QEMU_OPTION_no_fd_bootchk
:
4082 case QEMU_OPTION_netdev
:
4083 if (net_client_parse(&qemu_netdev_opts
, optarg
) == -1) {
4087 case QEMU_OPTION_net
:
4088 if (net_client_parse(&qemu_net_opts
, optarg
) == -1) {
4093 case QEMU_OPTION_tftp
:
4094 legacy_tftp_prefix
= optarg
;
4096 case QEMU_OPTION_bootp
:
4097 legacy_bootp_filename
= optarg
;
4100 case QEMU_OPTION_smb
:
4101 if (net_slirp_smb(optarg
) < 0)
4105 case QEMU_OPTION_redir
:
4106 if (net_slirp_redir(optarg
) < 0)
4110 case QEMU_OPTION_bt
:
4111 add_device_config(DEV_BT
, optarg
);
4114 case QEMU_OPTION_audio_help
:
4118 case QEMU_OPTION_soundhw
:
4119 select_soundhw (optarg
);
4125 case QEMU_OPTION_version
:
4129 case QEMU_OPTION_m
: {
4133 value
= strtoul(optarg
, &ptr
, 10);
4135 case 0: case 'M': case 'm':
4142 fprintf(stderr
, "qemu: invalid ram size: %s\n", optarg
);
4146 /* On 32-bit hosts, QEMU is limited by virtual address space */
4147 if (value
> (2047 << 20) && HOST_LONG_BITS
== 32) {
4148 fprintf(stderr
, "qemu: at most 2047 MB RAM can be simulated\n");
4151 if (value
!= (uint64_t)(ram_addr_t
)value
) {
4152 fprintf(stderr
, "qemu: ram size too large\n");
4158 case QEMU_OPTION_mempath
:
4162 case QEMU_OPTION_mem_prealloc
:
4169 const CPULogItem
*item
;
4171 mask
= cpu_str_to_log_mask(optarg
);
4173 printf("Log items (comma separated):\n");
4174 for(item
= cpu_log_items
; item
->mask
!= 0; item
++) {
4175 printf("%-10s %s\n", item
->name
, item
->help
);
4183 gdbstub_dev
= "tcp::" DEFAULT_GDBSTUB_PORT
;
4185 case QEMU_OPTION_gdb
:
4186 gdbstub_dev
= optarg
;
4191 case QEMU_OPTION_bios
:
4194 case QEMU_OPTION_singlestep
:
4201 keyboard_layout
= optarg
;
4203 case QEMU_OPTION_localtime
:
4206 case QEMU_OPTION_vga
:
4207 select_vgahw (optarg
);
4209 #if defined(TARGET_PPC) || defined(TARGET_SPARC)
4215 w
= strtol(p
, (char **)&p
, 10);
4218 fprintf(stderr
, "qemu: invalid resolution or depth\n");
4224 h
= strtol(p
, (char **)&p
, 10);
4229 depth
= strtol(p
, (char **)&p
, 10);
4230 if (depth
!= 8 && depth
!= 15 && depth
!= 16 &&
4231 depth
!= 24 && depth
!= 32)
4233 } else if (*p
== '\0') {
4234 depth
= graphic_depth
;
4241 graphic_depth
= depth
;
4245 case QEMU_OPTION_echr
:
4248 term_escape_char
= strtol(optarg
, &r
, 0);
4250 printf("Bad argument to echr\n");
4253 case QEMU_OPTION_monitor
:
4254 monitor_parse(optarg
, "readline");
4255 default_monitor
= 0;
4257 case QEMU_OPTION_qmp
:
4258 monitor_parse(optarg
, "control");
4259 default_monitor
= 0;
4261 case QEMU_OPTION_mon
:
4262 opts
= qemu_opts_parse(&qemu_mon_opts
, optarg
, 1);
4264 fprintf(stderr
, "parse error: %s\n", optarg
);
4267 default_monitor
= 0;
4269 case QEMU_OPTION_chardev
:
4270 opts
= qemu_opts_parse(&qemu_chardev_opts
, optarg
, 1);
4272 fprintf(stderr
, "parse error: %s\n", optarg
);
4276 case QEMU_OPTION_serial
:
4277 add_device_config(DEV_SERIAL
, optarg
);
4279 if (strncmp(optarg
, "mon:", 4) == 0) {
4280 default_monitor
= 0;
4283 case QEMU_OPTION_watchdog
:
4286 "qemu: only one watchdog option may be given\n");
4291 case QEMU_OPTION_watchdog_action
:
4292 if (select_watchdog_action(optarg
) == -1) {
4293 fprintf(stderr
, "Unknown -watchdog-action parameter\n");
4297 case QEMU_OPTION_virtiocon
:
4298 add_device_config(DEV_VIRTCON
, optarg
);
4299 default_virtcon
= 0;
4300 if (strncmp(optarg
, "mon:", 4) == 0) {
4301 default_monitor
= 0;
4304 case QEMU_OPTION_parallel
:
4305 add_device_config(DEV_PARALLEL
, optarg
);
4306 default_parallel
= 0;
4307 if (strncmp(optarg
, "mon:", 4) == 0) {
4308 default_monitor
= 0;
4311 case QEMU_OPTION_debugcon
:
4312 add_device_config(DEV_DEBUGCON
, optarg
);
4314 case QEMU_OPTION_loadvm
:
4317 case QEMU_OPTION_full_screen
:
4321 case QEMU_OPTION_no_frame
:
4324 case QEMU_OPTION_alt_grab
:
4327 case QEMU_OPTION_ctrl_grab
:
4330 case QEMU_OPTION_no_quit
:
4333 case QEMU_OPTION_sdl
:
4334 display_type
= DT_SDL
;
4337 case QEMU_OPTION_pidfile
:
4341 case QEMU_OPTION_win2k_hack
:
4342 win2k_install_hack
= 1;
4344 case QEMU_OPTION_rtc_td_hack
:
4347 case QEMU_OPTION_acpitable
:
4348 if(acpi_table_add(optarg
) < 0) {
4349 fprintf(stderr
, "Wrong acpi table provided\n");
4353 case QEMU_OPTION_smbios
:
4354 if(smbios_entry_add(optarg
) < 0) {
4355 fprintf(stderr
, "Wrong smbios provided\n");
4361 case QEMU_OPTION_enable_kvm
:
4365 case QEMU_OPTION_usb
:
4368 case QEMU_OPTION_usbdevice
:
4370 add_device_config(DEV_USB
, optarg
);
4372 case QEMU_OPTION_device
:
4373 if (!qemu_opts_parse(&qemu_device_opts
, optarg
, 1)) {
4377 case QEMU_OPTION_smp
:
4380 fprintf(stderr
, "Invalid number of CPUs\n");
4383 if (max_cpus
< smp_cpus
) {
4384 fprintf(stderr
, "maxcpus must be equal to or greater than "
4388 if (max_cpus
> 255) {
4389 fprintf(stderr
, "Unsupported number of maxcpus\n");
4393 case QEMU_OPTION_vnc
:
4394 display_type
= DT_VNC
;
4395 vnc_display
= optarg
;
4398 case QEMU_OPTION_no_acpi
:
4401 case QEMU_OPTION_no_hpet
:
4404 case QEMU_OPTION_balloon
:
4405 if (balloon_parse(optarg
) < 0) {
4406 fprintf(stderr
, "Unknown -balloon argument %s\n", optarg
);
4411 case QEMU_OPTION_no_reboot
:
4414 case QEMU_OPTION_no_shutdown
:
4417 case QEMU_OPTION_show_cursor
:
4420 case QEMU_OPTION_uuid
:
4421 if(qemu_uuid_parse(optarg
, qemu_uuid
) < 0) {
4422 fprintf(stderr
, "Fail to parse UUID string."
4423 " Wrong format.\n");
4428 case QEMU_OPTION_daemonize
:
4432 case QEMU_OPTION_option_rom
:
4433 if (nb_option_roms
>= MAX_OPTION_ROMS
) {
4434 fprintf(stderr
, "Too many option ROMs\n");
4437 option_rom
[nb_option_roms
] = optarg
;
4440 #if defined(TARGET_ARM) || defined(TARGET_M68K)
4441 case QEMU_OPTION_semihosting
:
4442 semihosting_enabled
= 1;
4445 case QEMU_OPTION_name
:
4446 qemu_name
= qemu_strdup(optarg
);
4448 char *p
= strchr(qemu_name
, ',');
4451 if (strncmp(p
, "process=", 8)) {
4452 fprintf(stderr
, "Unknown subargument %s to -name", p
);
4460 #if defined(TARGET_SPARC) || defined(TARGET_PPC)
4461 case QEMU_OPTION_prom_env
:
4462 if (nb_prom_envs
>= MAX_PROM_ENVS
) {
4463 fprintf(stderr
, "Too many prom variables\n");
4466 prom_envs
[nb_prom_envs
] = optarg
;
4471 case QEMU_OPTION_old_param
:
4475 case QEMU_OPTION_clock
:
4476 configure_alarms(optarg
);
4478 case QEMU_OPTION_startdate
:
4479 configure_rtc_date_offset(optarg
, 1);
4481 case QEMU_OPTION_rtc
:
4482 opts
= qemu_opts_parse(&qemu_rtc_opts
, optarg
, 0);
4484 fprintf(stderr
, "parse error: %s\n", optarg
);
4487 configure_rtc(opts
);
4489 case QEMU_OPTION_tb_size
:
4490 tb_size
= strtol(optarg
, NULL
, 0);
4494 case QEMU_OPTION_icount
:
4495 icount_option
= optarg
;
4497 case QEMU_OPTION_incoming
:
4500 case QEMU_OPTION_nodefaults
:
4502 default_parallel
= 0;
4503 default_virtcon
= 0;
4504 default_monitor
= 0;
4512 case QEMU_OPTION_chroot
:
4513 chroot_dir
= optarg
;
4515 case QEMU_OPTION_runas
:
4520 case QEMU_OPTION_xen_domid
:
4521 xen_domid
= atoi(optarg
);
4523 case QEMU_OPTION_xen_create
:
4524 xen_mode
= XEN_CREATE
;
4526 case QEMU_OPTION_xen_attach
:
4527 xen_mode
= XEN_ATTACH
;
4530 case QEMU_OPTION_readconfig
:
4533 fp
= fopen(optarg
, "r");
4535 fprintf(stderr
, "open %s: %s\n", optarg
, strerror(errno
));
4538 if (qemu_config_parse(fp
, optarg
) != 0) {
4544 case QEMU_OPTION_writeconfig
:
4547 if (strcmp(optarg
, "-") == 0) {
4550 fp
= fopen(optarg
, "w");
4552 fprintf(stderr
, "open %s: %s\n", optarg
, strerror(errno
));
4556 qemu_config_write(fp
);
4565 /* If no data_dir is specified then try to find it relative to the
4568 data_dir
= find_datadir(argv
[0]);
4570 /* If all else fails use the install patch specified when building. */
4572 data_dir
= CONFIG_QEMU_SHAREDIR
;
4576 * Default to max_cpus = smp_cpus, in case the user doesn't
4577 * specify a max_cpus value.
4580 max_cpus
= smp_cpus
;
4582 machine
->max_cpus
= machine
->max_cpus
?: 1; /* Default to UP */
4583 if (smp_cpus
> machine
->max_cpus
) {
4584 fprintf(stderr
, "Number of SMP cpus requested (%d), exceeds max cpus "
4585 "supported by machine `%s' (%d)\n", smp_cpus
, machine
->name
,
4590 qemu_opts_foreach(&qemu_device_opts
, default_driver_check
, NULL
, 0);
4591 qemu_opts_foreach(&qemu_global_opts
, default_driver_check
, NULL
, 0);
4593 if (machine
->no_serial
) {
4596 if (machine
->no_parallel
) {
4597 default_parallel
= 0;
4599 if (!machine
->use_virtcon
) {
4600 default_virtcon
= 0;
4602 if (machine
->no_vga
) {
4605 if (machine
->no_floppy
) {
4608 if (machine
->no_cdrom
) {
4611 if (machine
->no_sdcard
) {
4615 if (display_type
== DT_NOGRAPHIC
) {
4616 if (default_parallel
)
4617 add_device_config(DEV_PARALLEL
, "null");
4618 if (default_serial
&& default_monitor
) {
4619 add_device_config(DEV_SERIAL
, "mon:stdio");
4620 } else if (default_virtcon
&& default_monitor
) {
4621 add_device_config(DEV_VIRTCON
, "mon:stdio");
4624 add_device_config(DEV_SERIAL
, "stdio");
4625 if (default_virtcon
)
4626 add_device_config(DEV_VIRTCON
, "stdio");
4627 if (default_monitor
)
4628 monitor_parse("stdio", "readline");
4632 add_device_config(DEV_SERIAL
, "vc:80Cx24C");
4633 if (default_parallel
)
4634 add_device_config(DEV_PARALLEL
, "vc:80Cx24C");
4635 if (default_monitor
)
4636 monitor_parse("vc:80Cx24C", "readline");
4637 if (default_virtcon
)
4638 add_device_config(DEV_VIRTCON
, "vc:80Cx24C");
4641 vga_interface_type
= VGA_CIRRUS
;
4643 if (qemu_opts_foreach(&qemu_chardev_opts
, chardev_init_func
, NULL
, 1) != 0)
4650 if (pipe(fds
) == -1)
4661 len
= read(fds
[0], &status
, 1);
4662 if (len
== -1 && (errno
== EINTR
))
4667 else if (status
== 1) {
4668 fprintf(stderr
, "Could not acquire pidfile: %s\n", strerror(errno
));
4676 qemu_set_cloexec(fds
[1]);
4688 signal(SIGTSTP
, SIG_IGN
);
4689 signal(SIGTTOU
, SIG_IGN
);
4690 signal(SIGTTIN
, SIG_IGN
);
4694 if (pid_file
&& qemu_create_pidfile(pid_file
) != 0) {
4698 if (write(fds
[1], &status
, 1) != 1) {
4699 perror("daemonize. Writing to pipe\n");
4703 fprintf(stderr
, "Could not acquire pid file: %s\n", strerror(errno
));
4707 if (kvm_enabled()) {
4710 ret
= kvm_init(smp_cpus
);
4712 fprintf(stderr
, "failed to initialize KVM\n");
4717 if (qemu_init_main_loop()) {
4718 fprintf(stderr
, "qemu_init_main_loop failed\n");
4721 linux_boot
= (kernel_filename
!= NULL
);
4723 if (!linux_boot
&& *kernel_cmdline
!= '\0') {
4724 fprintf(stderr
, "-append only allowed with -kernel option\n");
4728 if (!linux_boot
&& initrd_filename
!= NULL
) {
4729 fprintf(stderr
, "-initrd only allowed with -kernel option\n");
4734 /* Win32 doesn't support line-buffering and requires size >= 2 */
4735 setvbuf(stdout
, NULL
, _IOLBF
, 0);
4738 if (init_timer_alarm() < 0) {
4739 fprintf(stderr
, "could not initialize alarm timer\n");
4742 configure_icount(icount_option
);
4748 if (net_init_clients() < 0) {
4752 net_boot
= (boot_devices_bitmap
>> ('n' - 'a')) & 0xF;
4753 net_set_boot_mask(net_boot
);
4755 /* init the bluetooth world */
4756 if (foreach_device_config(DEV_BT
, bt_parse
))
4759 /* init the memory */
4761 ram_size
= DEFAULT_RAM_SIZE
* 1024 * 1024;
4763 /* init the dynamic translator */
4764 cpu_exec_init_all(tb_size
* 1024 * 1024);
4766 bdrv_init_with_whitelist();
4770 if (default_cdrom
) {
4771 /* we always create the cdrom drive, even if no disk is there */
4772 drive_add(NULL
, CDROM_ALIAS
);
4775 if (default_floppy
) {
4776 /* we always create at least one floppy */
4777 drive_add(NULL
, FD_ALIAS
, 0);
4780 if (default_sdcard
) {
4781 /* we always create one sd slot, even if no card is in it */
4782 drive_add(NULL
, SD_ALIAS
);
4785 /* open the virtual block devices */
4787 qemu_opts_foreach(&qemu_drive_opts
, drive_enable_snapshot
, NULL
, 0);
4788 if (qemu_opts_foreach(&qemu_drive_opts
, drive_init_func
, machine
, 1) != 0)
4791 register_savevm_live("ram", 0, 3, NULL
, ram_save_live
, NULL
,
4794 if (nb_numa_nodes
> 0) {
4797 if (nb_numa_nodes
> smp_cpus
) {
4798 nb_numa_nodes
= smp_cpus
;
4801 /* If no memory size if given for any node, assume the default case
4802 * and distribute the available memory equally across all nodes
4804 for (i
= 0; i
< nb_numa_nodes
; i
++) {
4805 if (node_mem
[i
] != 0)
4808 if (i
== nb_numa_nodes
) {
4809 uint64_t usedmem
= 0;
4811 /* On Linux, the each node's border has to be 8MB aligned,
4812 * the final node gets the rest.
4814 for (i
= 0; i
< nb_numa_nodes
- 1; i
++) {
4815 node_mem
[i
] = (ram_size
/ nb_numa_nodes
) & ~((1 << 23UL) - 1);
4816 usedmem
+= node_mem
[i
];
4818 node_mem
[i
] = ram_size
- usedmem
;
4821 for (i
= 0; i
< nb_numa_nodes
; i
++) {
4822 if (node_cpumask
[i
] != 0)
4825 /* assigning the VCPUs round-robin is easier to implement, guest OSes
4826 * must cope with this anyway, because there are BIOSes out there in
4827 * real machines which also use this scheme.
4829 if (i
== nb_numa_nodes
) {
4830 for (i
= 0; i
< smp_cpus
; i
++) {
4831 node_cpumask
[i
% nb_numa_nodes
] |= 1 << i
;
4836 if (foreach_device_config(DEV_SERIAL
, serial_parse
) < 0)
4838 if (foreach_device_config(DEV_PARALLEL
, parallel_parse
) < 0)
4840 if (foreach_device_config(DEV_VIRTCON
, virtcon_parse
) < 0)
4842 if (foreach_device_config(DEV_DEBUGCON
, debugcon_parse
) < 0)
4845 module_call_init(MODULE_INIT_DEVICE
);
4847 if (qemu_opts_foreach(&qemu_device_opts
, device_help_func
, NULL
, 0) != 0)
4851 i
= select_watchdog(watchdog
);
4853 exit (i
== 1 ? 1 : 0);
4856 if (machine
->compat_props
) {
4857 qdev_prop_register_global_list(machine
->compat_props
);
4861 machine
->init(ram_size
, boot_devices
,
4862 kernel_filename
, kernel_cmdline
, initrd_filename
, cpu_model
);
4864 cpu_synchronize_all_post_init();
4867 /* must be after terminal init, SDL library changes signal handlers */
4873 current_machine
= machine
;
4875 /* init USB devices */
4877 if (foreach_device_config(DEV_USB
, usb_parse
) < 0)
4881 /* init generic devices */
4882 if (qemu_opts_foreach(&qemu_device_opts
, device_init_func
, NULL
, 1) != 0)
4885 net_check_clients();
4887 /* just use the first displaystate for the moment */
4888 ds
= get_displaystate();
4890 if (display_type
== DT_DEFAULT
) {
4891 #if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
4892 display_type
= DT_SDL
;
4894 display_type
= DT_VNC
;
4895 vnc_display
= "localhost:0,to=99";
4901 switch (display_type
) {
4904 #if defined(CONFIG_CURSES)
4906 curses_display_init(ds
, full_screen
);
4909 #if defined(CONFIG_SDL)
4911 sdl_display_init(ds
, full_screen
, no_frame
);
4913 #elif defined(CONFIG_COCOA)
4915 cocoa_display_init(ds
, full_screen
);
4919 vnc_display_init(ds
);
4920 if (vnc_display_open(ds
, vnc_display
) < 0)
4923 if (show_vnc_port
) {
4924 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds
));
4932 dcl
= ds
->listeners
;
4933 while (dcl
!= NULL
) {
4934 if (dcl
->dpy_refresh
!= NULL
) {
4935 ds
->gui_timer
= qemu_new_timer(rt_clock
, gui_update
, ds
);
4936 qemu_mod_timer(ds
->gui_timer
, qemu_get_clock(rt_clock
));
4941 if (display_type
== DT_NOGRAPHIC
|| display_type
== DT_VNC
) {
4942 nographic_timer
= qemu_new_timer(rt_clock
, nographic_update
, NULL
);
4943 qemu_mod_timer(nographic_timer
, qemu_get_clock(rt_clock
));
4946 text_consoles_set_display(ds
);
4948 if (qemu_opts_foreach(&qemu_mon_opts
, mon_init_func
, NULL
, 1) != 0)
4951 if (gdbstub_dev
&& gdbserver_start(gdbstub_dev
) < 0) {
4952 fprintf(stderr
, "qemu: could not open gdbserver on device '%s'\n",
4957 qdev_machine_creation_done();
4959 if (rom_load_all() != 0) {
4960 fprintf(stderr
, "rom loading failed\n");
4964 qemu_system_reset();
4966 if (load_vmstate(loadvm
) < 0) {
4972 qemu_start_incoming_migration(incoming
);
4973 } else if (autostart
) {
4983 len
= write(fds
[1], &status
, 1);
4984 if (len
== -1 && (errno
== EINTR
))
4991 perror("not able to chdir to /");
4994 TFR(fd
= qemu_open("/dev/null", O_RDWR
));
5000 pwd
= getpwnam(run_as
);
5002 fprintf(stderr
, "User \"%s\" doesn't exist\n", run_as
);
5008 if (chroot(chroot_dir
) < 0) {
5009 fprintf(stderr
, "chroot failed\n");
5013 perror("not able to chdir to /");
5019 if (setgid(pwd
->pw_gid
) < 0) {
5020 fprintf(stderr
, "Failed to setgid(%d)\n", pwd
->pw_gid
);
5023 if (setuid(pwd
->pw_uid
) < 0) {
5024 fprintf(stderr
, "Failed to setuid(%d)\n", pwd
->pw_uid
);
5027 if (setuid(0) != -1) {
5028 fprintf(stderr
, "Dropping privileges failed\n");