diff options
Diffstat (limited to 'qemu-options.hx')
| -rw-r--r-- | qemu-options.hx | 572 |
1 files changed, 281 insertions, 291 deletions
diff --git a/qemu-options.hx b/qemu-options.hx index 27c9e612a3..4bc9c85d9e 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -103,196 +103,6 @@ Simulate a multi node NUMA system. If mem and cpus are omitted, resources are split equally. ETEXI -DEF("fda", HAS_ARG, QEMU_OPTION_fda, - "-fda/-fdb file use 'file' as floppy disk 0/1 image\n", QEMU_ARCH_ALL) -DEF("fdb", HAS_ARG, QEMU_OPTION_fdb, "", QEMU_ARCH_ALL) -STEXI -@item -fda @var{file} -@item -fdb @var{file} -@findex -fda -@findex -fdb -Use @var{file} as floppy disk 0/1 image (@pxref{disk_images}). You can -use the host floppy by using @file{/dev/fd0} as filename (@pxref{host_drives}). -ETEXI - -DEF("hda", HAS_ARG, QEMU_OPTION_hda, - "-hda/-hdb file use 'file' as IDE hard disk 0/1 image\n", QEMU_ARCH_ALL) -DEF("hdb", HAS_ARG, QEMU_OPTION_hdb, "", QEMU_ARCH_ALL) -DEF("hdc", HAS_ARG, QEMU_OPTION_hdc, - "-hdc/-hdd file use 'file' as IDE hard disk 2/3 image\n", QEMU_ARCH_ALL) -DEF("hdd", HAS_ARG, QEMU_OPTION_hdd, "", QEMU_ARCH_ALL) -STEXI -@item -hda @var{file} -@item -hdb @var{file} -@item -hdc @var{file} -@item -hdd @var{file} -@findex -hda -@findex -hdb -@findex -hdc -@findex -hdd -Use @var{file} as hard disk 0, 1, 2 or 3 image (@pxref{disk_images}). -ETEXI - -DEF("cdrom", HAS_ARG, QEMU_OPTION_cdrom, - "-cdrom file use 'file' as IDE cdrom image (cdrom is ide1 master)\n", - QEMU_ARCH_ALL) -STEXI -@item -cdrom @var{file} -@findex -cdrom -Use @var{file} as CD-ROM image (you cannot use @option{-hdc} and -@option{-cdrom} at the same time). You can use the host CD-ROM by -using @file{/dev/cdrom} as filename (@pxref{host_drives}). -ETEXI - -DEF("drive", HAS_ARG, QEMU_OPTION_drive, - "-drive [file=file][,if=type][,bus=n][,unit=m][,media=d][,index=i]\n" - " [,cyls=c,heads=h,secs=s[,trans=t]][,snapshot=on|off]\n" - " [,cache=writethrough|writeback|none|directsync|unsafe][,format=f]\n" - " [,serial=s][,addr=A][,id=name][,aio=threads|native]\n" - " [,readonly=on|off][,copy-on-read=on|off]\n" - " [[,bps=b]|[[,bps_rd=r][,bps_wr=w]]][[,iops=i]|[[,iops_rd=r][,iops_wr=w]]\n" - " use 'file' as a drive image\n", QEMU_ARCH_ALL) -STEXI -@item -drive @var{option}[,@var{option}[,@var{option}[,...]]] -@findex -drive - -Define a new drive. Valid options are: - -@table @option -@item file=@var{file} -This option defines which disk image (@pxref{disk_images}) to use with -this drive. If the filename contains comma, you must double it -(for instance, "file=my,,file" to use file "my,file"). - -Special files such as iSCSI devices can be specified using protocol -specific URLs. See the section for "Device URL Syntax" for more information. -@item if=@var{interface} -This option defines on which type on interface the drive is connected. -Available types are: ide, scsi, sd, mtd, floppy, pflash, virtio. -@item bus=@var{bus},unit=@var{unit} -These options define where is connected the drive by defining the bus number and -the unit id. -@item index=@var{index} -This option defines where is connected the drive by using an index in the list -of available connectors of a given interface type. -@item media=@var{media} -This option defines the type of the media: disk or cdrom. -@item cyls=@var{c},heads=@var{h},secs=@var{s}[,trans=@var{t}] -These options have the same definition as they have in @option{-hdachs}. -@item snapshot=@var{snapshot} -@var{snapshot} is "on" or "off" and allows to enable snapshot for given drive (see @option{-snapshot}). -@item cache=@var{cache} -@var{cache} is "none", "writeback", "unsafe", "directsync" or "writethrough" and controls how the host cache is used to access block data. -@item aio=@var{aio} -@var{aio} is "threads", or "native" and selects between pthread based disk I/O and native Linux AIO. -@item format=@var{format} -Specify which disk @var{format} will be used rather than detecting -the format. Can be used to specifiy format=raw to avoid interpreting -an untrusted format header. -@item serial=@var{serial} -This option specifies the serial number to assign to the device. -@item addr=@var{addr} -Specify the controller's PCI address (if=virtio only). -@item werror=@var{action},rerror=@var{action} -Specify which @var{action} to take on write and read errors. Valid actions are: -"ignore" (ignore the error and try to continue), "stop" (pause QEMU), -"report" (report the error to the guest), "enospc" (pause QEMU only if the -host disk is full; report the error to the guest otherwise). -The default setting is @option{werror=enospc} and @option{rerror=report}. -@item readonly -Open drive @option{file} as read-only. Guest write attempts will fail. -@item copy-on-read=@var{copy-on-read} -@var{copy-on-read} is "on" or "off" and enables whether to copy read backing -file sectors into the image file. -@end table - -By default, the @option{cache=writeback} mode is used. It will report data -writes as completed as soon as the data is present in the host page cache. -This is safe as long as your guest OS makes sure to correctly flush disk caches -where needed. If your guest OS does not handle volatile disk write caches -correctly and your host crashes or loses power, then the guest may experience -data corruption. - -For such guests, you should consider using @option{cache=writethrough}. This -means that the host page cache will be used to read and write data, but write -notification will be sent to the guest only after QEMU has made sure to flush -each write to the disk. Be aware that this has a major impact on performance. - -The host page cache can be avoided entirely with @option{cache=none}. This will -attempt to do disk IO directly to the guest's memory. QEMU may still perform -an internal copy of the data. Note that this is considered a writeback mode and -the guest OS must handle the disk write cache correctly in order to avoid data -corruption on host crashes. - -The host page cache can be avoided while only sending write notifications to -the guest when the data has been flushed to the disk using -@option{cache=directsync}. - -In case you don't care about data integrity over host failures, use -@option{cache=unsafe}. This option tells QEMU that it never needs to write any -data to the disk but can instead keep things in cache. If anything goes wrong, -like your host losing power, the disk storage getting disconnected accidentally, -etc. your image will most probably be rendered unusable. When using -the @option{-snapshot} option, unsafe caching is always used. - -Copy-on-read avoids accessing the same backing file sectors repeatedly and is -useful when the backing file is over a slow network. By default copy-on-read -is off. - -Instead of @option{-cdrom} you can use: -@example -qemu-system-i386 -drive file=file,index=2,media=cdrom -@end example - -Instead of @option{-hda}, @option{-hdb}, @option{-hdc}, @option{-hdd}, you can -use: -@example -qemu-system-i386 -drive file=file,index=0,media=disk -qemu-system-i386 -drive file=file,index=1,media=disk -qemu-system-i386 -drive file=file,index=2,media=disk -qemu-system-i386 -drive file=file,index=3,media=disk -@end example - -You can open an image using pre-opened file descriptors from an fd set: -@example -qemu-system-i386 --add-fd fd=3,set=2,opaque="rdwr:/path/to/file" --add-fd fd=4,set=2,opaque="rdonly:/path/to/file" --drive file=/dev/fdset/2,index=0,media=disk -@end example - -You can connect a CDROM to the slave of ide0: -@example -qemu-system-i386 -drive file=file,if=ide,index=1,media=cdrom -@end example - -If you don't specify the "file=" argument, you define an empty drive: -@example -qemu-system-i386 -drive if=ide,index=1,media=cdrom -@end example - -You can connect a SCSI disk with unit ID 6 on the bus #0: -@example -qemu-system-i386 -drive file=file,if=scsi,bus=0,unit=6 -@end example - -Instead of @option{-fda}, @option{-fdb}, you can use: -@example -qemu-system-i386 -drive file=file,index=0,if=floppy -qemu-system-i386 -drive file=file,index=1,if=floppy -@end example - -By default, @var{interface} is "ide" and @var{index} is automatically -incremented: -@example -qemu-system-i386 -drive file=a -drive file=b" -@end example -is interpreted like: -@example -qemu-system-i386 -hda a -hdb b -@end example -ETEXI - DEF("add-fd", HAS_ARG, QEMU_OPTION_add_fd, "-add-fd fd=fd,set=set[,opaque=opaque]\n" " Add 'fd' to fd 'set'\n", QEMU_ARCH_ALL) @@ -349,31 +159,6 @@ created automatically by the machine model. To create a device which is not created automatically and set properties on it, use -@option{device}. ETEXI -DEF("mtdblock", HAS_ARG, QEMU_OPTION_mtdblock, - "-mtdblock file use 'file' as on-board Flash memory image\n", - QEMU_ARCH_ALL) -STEXI -@item -mtdblock @var{file} -@findex -mtdblock -Use @var{file} as on-board Flash memory image. -ETEXI - -DEF("sd", HAS_ARG, QEMU_OPTION_sd, - "-sd file use 'file' as SecureDigital card image\n", QEMU_ARCH_ALL) -STEXI -@item -sd @var{file} -@findex -sd -Use @var{file} as SecureDigital card image. -ETEXI - -DEF("pflash", HAS_ARG, QEMU_OPTION_pflash, - "-pflash file use 'file' as a parallel flash image\n", QEMU_ARCH_ALL) -STEXI -@item -pflash @var{file} -@findex -pflash -Use @var{file} as a parallel flash image. -ETEXI - DEF("boot", HAS_ARG, QEMU_OPTION_boot, "-boot [order=drives][,once=drives][,menu=on|off]\n" " [,splash=sp_name][,splash-time=sp_time][,reboot-timeout=rb_time]\n" @@ -420,17 +205,6 @@ Note: The legacy format '-boot @var{drives}' is still supported but its use is discouraged as it may be removed from future versions. ETEXI -DEF("snapshot", 0, QEMU_OPTION_snapshot, - "-snapshot write to temporary files instead of disk image files\n", - QEMU_ARCH_ALL) -STEXI -@item -snapshot -@findex -snapshot -Write to temporary files instead of disk image files. In this case, -the raw disk image you use is not written back. You can however force -the write back by pressing @key{C-a s} (@pxref{disk_images}). -ETEXI - DEF("m", HAS_ARG, QEMU_OPTION_m, "-m megs set virtual RAM size to megs MB [default=" stringify(DEFAULT_RAM_SIZE) "]\n", QEMU_ARCH_ALL) @@ -579,73 +353,250 @@ STEXI ETEXI DEFHEADING() -DEFHEADING(USB options:) +DEFHEADING(Block device options:) STEXI @table @option ETEXI -DEF("usb", 0, QEMU_OPTION_usb, - "-usb enable the USB driver (will be the default soon)\n", - QEMU_ARCH_ALL) +DEF("fda", HAS_ARG, QEMU_OPTION_fda, + "-fda/-fdb file use 'file' as floppy disk 0/1 image\n", QEMU_ARCH_ALL) +DEF("fdb", HAS_ARG, QEMU_OPTION_fdb, "", QEMU_ARCH_ALL) STEXI -@item -usb -@findex -usb -Enable the USB driver (will be the default soon) +@item -fda @var{file} +@item -fdb @var{file} +@findex -fda +@findex -fdb +Use @var{file} as floppy disk 0/1 image (@pxref{disk_images}). You can +use the host floppy by using @file{/dev/fd0} as filename (@pxref{host_drives}). ETEXI -DEF("usbdevice", HAS_ARG, QEMU_OPTION_usbdevice, - "-usbdevice name add the host or guest USB device 'name'\n", +DEF("hda", HAS_ARG, QEMU_OPTION_hda, + "-hda/-hdb file use 'file' as IDE hard disk 0/1 image\n", QEMU_ARCH_ALL) +DEF("hdb", HAS_ARG, QEMU_OPTION_hdb, "", QEMU_ARCH_ALL) +DEF("hdc", HAS_ARG, QEMU_OPTION_hdc, + "-hdc/-hdd file use 'file' as IDE hard disk 2/3 image\n", QEMU_ARCH_ALL) +DEF("hdd", HAS_ARG, QEMU_OPTION_hdd, "", QEMU_ARCH_ALL) +STEXI +@item -hda @var{file} +@item -hdb @var{file} +@item -hdc @var{file} +@item -hdd @var{file} +@findex -hda +@findex -hdb +@findex -hdc +@findex -hdd +Use @var{file} as hard disk 0, 1, 2 or 3 image (@pxref{disk_images}). +ETEXI + +DEF("cdrom", HAS_ARG, QEMU_OPTION_cdrom, + "-cdrom file use 'file' as IDE cdrom image (cdrom is ide1 master)\n", QEMU_ARCH_ALL) STEXI +@item -cdrom @var{file} +@findex -cdrom +Use @var{file} as CD-ROM image (you cannot use @option{-hdc} and +@option{-cdrom} at the same time). You can use the host CD-ROM by +using @file{/dev/cdrom} as filename (@pxref{host_drives}). +ETEXI -@item -usbdevice @var{devname} -@findex -usbdevice -Add the USB device @var{devname}. @xref{usb_devices}. +DEF("drive", HAS_ARG, QEMU_OPTION_drive, + "-drive [file=file][,if=type][,bus=n][,unit=m][,media=d][,index=i]\n" + " [,cyls=c,heads=h,secs=s[,trans=t]][,snapshot=on|off]\n" + " [,cache=writethrough|writeback|none|directsync|unsafe][,format=f]\n" + " [,serial=s][,addr=A][,id=name][,aio=threads|native]\n" + " [,readonly=on|off][,copy-on-read=on|off]\n" + " [[,bps=b]|[[,bps_rd=r][,bps_wr=w]]][[,iops=i]|[[,iops_rd=r][,iops_wr=w]]\n" + " use 'file' as a drive image\n", QEMU_ARCH_ALL) +STEXI +@item -drive @var{option}[,@var{option}[,@var{option}[,...]]] +@findex -drive + +Define a new drive. Valid options are: @table @option +@item file=@var{file} +This option defines which disk image (@pxref{disk_images}) to use with +this drive. If the filename contains comma, you must double it +(for instance, "file=my,,file" to use file "my,file"). -@item mouse -Virtual Mouse. This will override the PS/2 mouse emulation when activated. +Special files such as iSCSI devices can be specified using protocol +specific URLs. See the section for "Device URL Syntax" for more information. +@item if=@var{interface} +This option defines on which type on interface the drive is connected. +Available types are: ide, scsi, sd, mtd, floppy, pflash, virtio. +@item bus=@var{bus},unit=@var{unit} +These options define where is connected the drive by defining the bus number and +the unit id. +@item index=@var{index} +This option defines where is connected the drive by using an index in the list +of available connectors of a given interface type. +@item media=@var{media} +This option defines the type of the media: disk or cdrom. +@item cyls=@var{c},heads=@var{h},secs=@var{s}[,trans=@var{t}] +These options have the same definition as they have in @option{-hdachs}. +@item snapshot=@var{snapshot} +@var{snapshot} is "on" or "off" and allows to enable snapshot for given drive (see @option{-snapshot}). +@item cache=@var{cache} +@var{cache} is "none", "writeback", "unsafe", "directsync" or "writethrough" and controls how the host cache is used to access block data. +@item aio=@var{aio} +@var{aio} is "threads", or "native" and selects between pthread based disk I/O and native Linux AIO. +@item format=@var{format} +Specify which disk @var{format} will be used rather than detecting +the format. Can be used to specifiy format=raw to avoid interpreting +an untrusted format header. +@item serial=@var{serial} +This option specifies the serial number to assign to the device. +@item addr=@var{addr} +Specify the controller's PCI address (if=virtio only). +@item werror=@var{action},rerror=@var{action} +Specify which @var{action} to take on write and read errors. Valid actions are: +"ignore" (ignore the error and try to continue), "stop" (pause QEMU), +"report" (report the error to the guest), "enospc" (pause QEMU only if the +host disk is full; report the error to the guest otherwise). +The default setting is @option{werror=enospc} and @option{rerror=report}. +@item readonly +Open drive @option{file} as read-only. Guest write attempts will fail. +@item copy-on-read=@var{copy-on-read} +@var{copy-on-read} is "on" or "off" and enables whether to copy read backing +file sectors into the image file. +@end table -@item tablet -Pointer device that uses absolute coordinates (like a touchscreen). This -means QEMU is able to report the mouse position without having to grab the -mouse. Also overrides the PS/2 mouse emulation when activated. +By default, the @option{cache=writeback} mode is used. It will report data +writes as completed as soon as the data is present in the host page cache. +This is safe as long as your guest OS makes sure to correctly flush disk caches +where needed. If your guest OS does not handle volatile disk write caches +correctly and your host crashes or loses power, then the guest may experience +data corruption. -@item disk:[format=@var{format}]:@var{file} -Mass storage device based on file. The optional @var{format} argument -will be used rather than detecting the format. Can be used to specifiy -@code{format=raw} to avoid interpreting an untrusted format header. +For such guests, you should consider using @option{cache=writethrough}. This +means that the host page cache will be used to read and write data, but write +notification will be sent to the guest only after QEMU has made sure to flush +each write to the disk. Be aware that this has a major impact on performance. -@item host:@var{bus}.@var{addr} -Pass through the host device identified by @var{bus}.@var{addr} (Linux only). +The host page cache can be avoided entirely with @option{cache=none}. This will +attempt to do disk IO directly to the guest's memory. QEMU may still perform +an internal copy of the data. Note that this is considered a writeback mode and +the guest OS must handle the disk write cache correctly in order to avoid data +corruption on host crashes. -@item host:@var{vendor_id}:@var{product_id} -Pass through the host device identified by @var{vendor_id}:@var{product_id} -(Linux only). +The host page cache can be avoided while only sending write notifications to +the guest when the data has been flushed to the disk using +@option{cache=directsync}. -@item serial:[vendorid=@var{vendor_id}][,productid=@var{product_id}]:@var{dev} -Serial converter to host character device @var{dev}, see @code{-serial} for the -available devices. +In case you don't care about data integrity over host failures, use +@option{cache=unsafe}. This option tells QEMU that it never needs to write any +data to the disk but can instead keep things in cache. If anything goes wrong, +like your host losing power, the disk storage getting disconnected accidentally, +etc. your image will most probably be rendered unusable. When using +the @option{-snapshot} option, unsafe caching is always used. -@item braille -Braille device. This will use BrlAPI to display the braille output on a real -or fake device. +Copy-on-read avoids accessing the same backing file sectors repeatedly and is +useful when the backing file is over a slow network. By default copy-on-read +is off. -@item net:@var{options} -Network adapter that supports CDC ethernet and RNDIS protocols. +Instead of @option{-cdrom} you can use: +@example +qemu-system-i386 -drive file=file,index=2,media=cdrom +@end example -@end table +Instead of @option{-hda}, @option{-hdb}, @option{-hdc}, @option{-hdd}, you can +use: +@example +qemu-system-i386 -drive file=file,index=0,media=disk +qemu-system-i386 -drive file=file,index=1,media=disk +qemu-system-i386 -drive file=file,index=2,media=disk +qemu-system-i386 -drive file=file,index=3,media=disk +@end example + +You can open an image using pre-opened file descriptors from an fd set: +@example +qemu-system-i386 +-add-fd fd=3,set=2,opaque="rdwr:/path/to/file" +-add-fd fd=4,set=2,opaque="rdonly:/path/to/file" +-drive file=/dev/fdset/2,index=0,media=disk +@end example + +You can connect a CDROM to the slave of ide0: +@example +qemu-system-i386 -drive file=file,if=ide,index=1,media=cdrom +@end example + +If you don't specify the "file=" argument, you define an empty drive: +@example +qemu-system-i386 -drive if=ide,index=1,media=cdrom +@end example + +You can connect a SCSI disk with unit ID 6 on the bus #0: +@example +qemu-system-i386 -drive file=file,if=scsi,bus=0,unit=6 +@end example + +Instead of @option{-fda}, @option{-fdb}, you can use: +@example +qemu-system-i386 -drive file=file,index=0,if=floppy +qemu-system-i386 -drive file=file,index=1,if=floppy +@end example + +By default, @var{interface} is "ide" and @var{index} is automatically +incremented: +@example +qemu-system-i386 -drive file=a -drive file=b" +@end example +is interpreted like: +@example +qemu-system-i386 -hda a -hdb b +@end example ETEXI +DEF("mtdblock", HAS_ARG, QEMU_OPTION_mtdblock, + "-mtdblock file use 'file' as on-board Flash memory image\n", + QEMU_ARCH_ALL) STEXI -@end table +@item -mtdblock @var{file} +@findex -mtdblock +Use @var{file} as on-board Flash memory image. ETEXI -DEFHEADING() -DEFHEADING(File system options:) +DEF("sd", HAS_ARG, QEMU_OPTION_sd, + "-sd file use 'file' as SecureDigital card image\n", QEMU_ARCH_ALL) STEXI -@table @option +@item -sd @var{file} +@findex -sd +Use @var{file} as SecureDigital card image. +ETEXI + +DEF("pflash", HAS_ARG, QEMU_OPTION_pflash, + "-pflash file use 'file' as a parallel flash image\n", QEMU_ARCH_ALL) +STEXI +@item -pflash @var{file} +@findex -pflash +Use @var{file} as a parallel flash image. +ETEXI + +DEF("snapshot", 0, QEMU_OPTION_snapshot, + "-snapshot write to temporary files instead of disk image files\n", + QEMU_ARCH_ALL) +STEXI +@item -snapshot +@findex -snapshot +Write to temporary files instead of disk image files. In this case, +the raw disk image you use is not written back. You can however force +the write back by pressing @key{C-a s} (@pxref{disk_images}). +ETEXI + +DEF("hdachs", HAS_ARG, QEMU_OPTION_hdachs, \ + "-hdachs c,h,s[,t]\n" \ + " force hard disk 0 physical geometry and the optional BIOS\n" \ + " translation (t=none or lba) (usually QEMU can guess them)\n", + QEMU_ARCH_ALL) +STEXI +@item -hdachs @var{c},@var{h},@var{s},[,@var{t}] +@findex -hdachs +Force hard disk 0 physical geometry (1 <= @var{c} <= 16383, 1 <= +@var{h} <= 16, 1 <= @var{s} <= 63) and optionally force the BIOS +translation mode (@var{t}=none, lba or auto). Usually QEMU can guess +all those parameters. This option is useful for old MS-DOS disk +images. ETEXI DEF("fsdev", HAS_ARG, QEMU_OPTION_fsdev, @@ -710,16 +661,6 @@ Specifies the tag name to be used by the guest to mount this export point ETEXI -STEXI -@end table -ETEXI -DEFHEADING() - -DEFHEADING(Virtual File system pass-through options:) -STEXI -@table @option -ETEXI - DEF("virtfs", HAS_ARG, QEMU_OPTION_virtfs, "-virtfs local,path=path,mount_tag=tag,security_model=[mapped-xattr|mapped-file|passthrough|none]\n" " [,writeout=immediate][,readonly][,socket=socket|sock_fd=sock_fd]\n", @@ -786,6 +727,70 @@ STEXI ETEXI DEFHEADING() +DEFHEADING(USB options:) +STEXI +@table @option +ETEXI + +DEF("usb", 0, QEMU_OPTION_usb, + "-usb enable the USB driver (will be the default soon)\n", + QEMU_ARCH_ALL) +STEXI +@item -usb +@findex -usb +Enable the USB driver (will be the default soon) +ETEXI + +DEF("usbdevice", HAS_ARG, QEMU_OPTION_usbdevice, + "-usbdevice name add the host or guest USB device 'name'\n", + QEMU_ARCH_ALL) +STEXI + +@item -usbdevice @var{devname} +@findex -usbdevice +Add the USB device @var{devname}. @xref{usb_devices}. + +@table @option + +@item mouse +Virtual Mouse. This will override the PS/2 mouse emulation when activated. + +@item tablet +Pointer device that uses absolute coordinates (like a touchscreen). This +means QEMU is able to report the mouse position without having to grab the +mouse. Also overrides the PS/2 mouse emulation when activated. + +@item disk:[format=@var{format}]:@var{file} +Mass storage device based on file. The optional @var{format} argument +will be used rather than detecting the format. Can be used to specifiy +@code{format=raw} to avoid interpreting an untrusted format header. + +@item host:@var{bus}.@var{addr} +Pass through the host device identified by @var{bus}.@var{addr} (Linux only). + +@item host:@var{vendor_id}:@var{product_id} +Pass through the host device identified by @var{vendor_id}:@var{product_id} +(Linux only). + +@item serial:[vendorid=@var{vendor_id}][,productid=@var{product_id}]:@var{dev} +Serial converter to host character device @var{dev}, see @code{-serial} for the +available devices. + +@item braille +Braille device. This will use BrlAPI to display the braille output on a real +or fake device. + +@item net:@var{options} +Network adapter that supports CDC ethernet and RNDIS protocols. + +@end table +ETEXI + +STEXI +@end table +ETEXI +DEFHEADING() + DEFHEADING(Display options:) STEXI @table @option @@ -2525,21 +2530,6 @@ STEXI Output log in @var{logfile} instead of /tmp/qemu.log ETEXI -DEF("hdachs", HAS_ARG, QEMU_OPTION_hdachs, \ - "-hdachs c,h,s[,t]\n" \ - " force hard disk 0 physical geometry and the optional BIOS\n" \ - " translation (t=none or lba) (usually QEMU can guess them)\n", - QEMU_ARCH_ALL) -STEXI -@item -hdachs @var{c},@var{h},@var{s},[,@var{t}] -@findex -hdachs -Force hard disk 0 physical geometry (1 <= @var{c} <= 16383, 1 <= -@var{h} <= 16, 1 <= @var{s} <= 63) and optionally force the BIOS -translation mode (@var{t}=none, lba or auto). Usually QEMU can guess -all those parameters. This option is useful for old MS-DOS disk -images. -ETEXI - DEF("L", HAS_ARG, QEMU_OPTION_L, \ "-L path set the directory for the BIOS, VGA BIOS and keymaps\n", QEMU_ARCH_ALL) |