ab6540d55e
This patch adds an optional command line switch '-trace' to specify the filename to write traces to, when qemu starts. Eg, If compiled with the 'simple' trace backend, [temp@system]$ qemu -trace FILENAME IMAGE Allows the binary traces to be written to FILENAME instead of the option set at config-time. Signed-off-by: Prerna Saxena <prerna@linux.vnet.ibm.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2249 lines
76 KiB
Haxe
2249 lines
76 KiB
Haxe
HXCOMM Use DEFHEADING() to define headings in both help text and texi
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HXCOMM Text between STEXI and ETEXI are copied to texi version and
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HXCOMM discarded from C version
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HXCOMM DEF(option, HAS_ARG/0, opt_enum, opt_help, arch_mask) is used to
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HXCOMM construct option structures, enums and help message for specified
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HXCOMM architectures.
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HXCOMM HXCOMM can be used for comments, discarded from both texi and C
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DEFHEADING(Standard options:)
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STEXI
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@table @option
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ETEXI
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DEF("help", 0, QEMU_OPTION_h,
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"-h or -help display this help and exit\n", QEMU_ARCH_ALL)
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STEXI
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@item -h
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@findex -h
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Display help and exit
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ETEXI
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DEF("version", 0, QEMU_OPTION_version,
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"-version display version information and exit\n", QEMU_ARCH_ALL)
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STEXI
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@item -version
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@findex -version
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Display version information and exit
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ETEXI
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DEF("M", HAS_ARG, QEMU_OPTION_M,
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"-M machine select emulated machine (-M ? for list)\n", QEMU_ARCH_ALL)
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STEXI
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@item -M @var{machine}
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@findex -M
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Select the emulated @var{machine} (@code{-M ?} for list)
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ETEXI
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DEF("cpu", HAS_ARG, QEMU_OPTION_cpu,
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"-cpu cpu select CPU (-cpu ? for list)\n", QEMU_ARCH_ALL)
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STEXI
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@item -cpu @var{model}
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@findex -cpu
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Select CPU model (-cpu ? for list and additional feature selection)
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ETEXI
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DEF("smp", HAS_ARG, QEMU_OPTION_smp,
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"-smp n[,maxcpus=cpus][,cores=cores][,threads=threads][,sockets=sockets]\n"
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" set the number of CPUs to 'n' [default=1]\n"
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" maxcpus= maximum number of total cpus, including\n"
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" offline CPUs for hotplug, etc\n"
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" cores= number of CPU cores on one socket\n"
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" threads= number of threads on one CPU core\n"
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" sockets= number of discrete sockets in the system\n",
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QEMU_ARCH_ALL)
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STEXI
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@item -smp @var{n}[,cores=@var{cores}][,threads=@var{threads}][,sockets=@var{sockets}][,maxcpus=@var{maxcpus}]
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@findex -smp
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Simulate an SMP system with @var{n} CPUs. On the PC target, up to 255
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CPUs are supported. On Sparc32 target, Linux limits the number of usable CPUs
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to 4.
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For the PC target, the number of @var{cores} per socket, the number
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of @var{threads} per cores and the total number of @var{sockets} can be
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specified. Missing values will be computed. If any on the three values is
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given, the total number of CPUs @var{n} can be omitted. @var{maxcpus}
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specifies the maximum number of hotpluggable CPUs.
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ETEXI
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DEF("numa", HAS_ARG, QEMU_OPTION_numa,
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"-numa node[,mem=size][,cpus=cpu[-cpu]][,nodeid=node]\n", QEMU_ARCH_ALL)
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STEXI
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@item -numa @var{opts}
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@findex -numa
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Simulate a multi node NUMA system. If mem and cpus are omitted, resources
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are split equally.
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ETEXI
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DEF("fda", HAS_ARG, QEMU_OPTION_fda,
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"-fda/-fdb file use 'file' as floppy disk 0/1 image\n", QEMU_ARCH_ALL)
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DEF("fdb", HAS_ARG, QEMU_OPTION_fdb, "", QEMU_ARCH_ALL)
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STEXI
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@item -fda @var{file}
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@item -fdb @var{file}
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@findex -fda
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@findex -fdb
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Use @var{file} as floppy disk 0/1 image (@pxref{disk_images}). You can
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use the host floppy by using @file{/dev/fd0} as filename (@pxref{host_drives}).
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ETEXI
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DEF("hda", HAS_ARG, QEMU_OPTION_hda,
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"-hda/-hdb file use 'file' as IDE hard disk 0/1 image\n", QEMU_ARCH_ALL)
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DEF("hdb", HAS_ARG, QEMU_OPTION_hdb, "", QEMU_ARCH_ALL)
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DEF("hdc", HAS_ARG, QEMU_OPTION_hdc,
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"-hdc/-hdd file use 'file' as IDE hard disk 2/3 image\n", QEMU_ARCH_ALL)
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DEF("hdd", HAS_ARG, QEMU_OPTION_hdd, "", QEMU_ARCH_ALL)
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STEXI
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@item -hda @var{file}
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@item -hdb @var{file}
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@item -hdc @var{file}
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@item -hdd @var{file}
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@findex -hda
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@findex -hdb
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@findex -hdc
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@findex -hdd
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Use @var{file} as hard disk 0, 1, 2 or 3 image (@pxref{disk_images}).
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ETEXI
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DEF("cdrom", HAS_ARG, QEMU_OPTION_cdrom,
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"-cdrom file use 'file' as IDE cdrom image (cdrom is ide1 master)\n",
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QEMU_ARCH_ALL)
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STEXI
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@item -cdrom @var{file}
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@findex -cdrom
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Use @var{file} as CD-ROM image (you cannot use @option{-hdc} and
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@option{-cdrom} at the same time). You can use the host CD-ROM by
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using @file{/dev/cdrom} as filename (@pxref{host_drives}).
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ETEXI
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DEF("drive", HAS_ARG, QEMU_OPTION_drive,
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"-drive [file=file][,if=type][,bus=n][,unit=m][,media=d][,index=i]\n"
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" [,cyls=c,heads=h,secs=s[,trans=t]][,snapshot=on|off]\n"
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" [,cache=writethrough|writeback|none|unsafe][,format=f]\n"
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" [,serial=s][,addr=A][,id=name][,aio=threads|native]\n"
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" [,readonly=on|off]\n"
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" use 'file' as a drive image\n", QEMU_ARCH_ALL)
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STEXI
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@item -drive @var{option}[,@var{option}[,@var{option}[,...]]]
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@findex -drive
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Define a new drive. Valid options are:
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@table @option
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@item file=@var{file}
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This option defines which disk image (@pxref{disk_images}) to use with
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this drive. If the filename contains comma, you must double it
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(for instance, "file=my,,file" to use file "my,file").
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@item if=@var{interface}
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This option defines on which type on interface the drive is connected.
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Available types are: ide, scsi, sd, mtd, floppy, pflash, virtio.
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@item bus=@var{bus},unit=@var{unit}
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These options define where is connected the drive by defining the bus number and
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the unit id.
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@item index=@var{index}
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This option defines where is connected the drive by using an index in the list
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of available connectors of a given interface type.
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@item media=@var{media}
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This option defines the type of the media: disk or cdrom.
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@item cyls=@var{c},heads=@var{h},secs=@var{s}[,trans=@var{t}]
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These options have the same definition as they have in @option{-hdachs}.
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@item snapshot=@var{snapshot}
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@var{snapshot} is "on" or "off" and allows to enable snapshot for given drive (see @option{-snapshot}).
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@item cache=@var{cache}
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@var{cache} is "none", "writeback", "unsafe", or "writethrough" and controls how the host cache is used to access block data.
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@item aio=@var{aio}
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@var{aio} is "threads", or "native" and selects between pthread based disk I/O and native Linux AIO.
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@item format=@var{format}
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Specify which disk @var{format} will be used rather than detecting
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the format. Can be used to specifiy format=raw to avoid interpreting
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an untrusted format header.
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@item serial=@var{serial}
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This option specifies the serial number to assign to the device.
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@item addr=@var{addr}
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Specify the controller's PCI address (if=virtio only).
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@end table
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By default, writethrough caching is used for all block device. This means that
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the host page cache will be used to read and write data but write notification
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will be sent to the guest only when the data has been reported as written by
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the storage subsystem.
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Writeback caching will report data writes as completed as soon as the data is
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present in the host page cache. This is safe as long as you trust your host.
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If your host crashes or loses power, then the guest may experience data
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corruption.
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The host page cache can be avoided entirely with @option{cache=none}. This will
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attempt to do disk IO directly to the guests memory. QEMU may still perform
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an internal copy of the data.
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Some block drivers perform badly with @option{cache=writethrough}, most notably,
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qcow2. If performance is more important than correctness,
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@option{cache=writeback} should be used with qcow2.
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In case you don't care about data integrity over host failures, use
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cache=unsafe. This option tells qemu that it never needs to write any data
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to the disk but can instead keeps things in cache. If anything goes wrong,
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like your host losing power, the disk storage getting disconnected accidently,
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etc. you're image will most probably be rendered unusable. When using
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the @option{-snapshot} option, unsafe caching is always used.
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Instead of @option{-cdrom} you can use:
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@example
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qemu -drive file=file,index=2,media=cdrom
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@end example
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Instead of @option{-hda}, @option{-hdb}, @option{-hdc}, @option{-hdd}, you can
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use:
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@example
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qemu -drive file=file,index=0,media=disk
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qemu -drive file=file,index=1,media=disk
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qemu -drive file=file,index=2,media=disk
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qemu -drive file=file,index=3,media=disk
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@end example
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You can connect a CDROM to the slave of ide0:
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@example
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qemu -drive file=file,if=ide,index=1,media=cdrom
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@end example
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If you don't specify the "file=" argument, you define an empty drive:
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@example
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qemu -drive if=ide,index=1,media=cdrom
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@end example
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You can connect a SCSI disk with unit ID 6 on the bus #0:
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@example
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qemu -drive file=file,if=scsi,bus=0,unit=6
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@end example
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Instead of @option{-fda}, @option{-fdb}, you can use:
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@example
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qemu -drive file=file,index=0,if=floppy
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qemu -drive file=file,index=1,if=floppy
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@end example
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By default, @var{interface} is "ide" and @var{index} is automatically
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incremented:
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@example
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qemu -drive file=a -drive file=b"
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@end example
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is interpreted like:
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@example
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qemu -hda a -hdb b
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@end example
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ETEXI
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DEF("set", HAS_ARG, QEMU_OPTION_set,
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"-set group.id.arg=value\n"
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" set <arg> parameter for item <id> of type <group>\n"
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" i.e. -set drive.$id.file=/path/to/image\n", QEMU_ARCH_ALL)
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STEXI
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@item -set
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@findex -set
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TODO
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ETEXI
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DEF("global", HAS_ARG, QEMU_OPTION_global,
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"-global driver.property=value\n"
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" set a global default for a driver property\n",
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QEMU_ARCH_ALL)
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STEXI
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@item -global
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@findex -global
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TODO
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ETEXI
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DEF("mtdblock", HAS_ARG, QEMU_OPTION_mtdblock,
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"-mtdblock file use 'file' as on-board Flash memory image\n",
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QEMU_ARCH_ALL)
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STEXI
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@item -mtdblock @var{file}
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@findex -mtdblock
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Use @var{file} as on-board Flash memory image.
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ETEXI
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DEF("sd", HAS_ARG, QEMU_OPTION_sd,
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"-sd file use 'file' as SecureDigital card image\n", QEMU_ARCH_ALL)
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STEXI
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@item -sd @var{file}
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@findex -sd
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Use @var{file} as SecureDigital card image.
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ETEXI
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DEF("pflash", HAS_ARG, QEMU_OPTION_pflash,
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"-pflash file use 'file' as a parallel flash image\n", QEMU_ARCH_ALL)
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STEXI
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@item -pflash @var{file}
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@findex -pflash
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Use @var{file} as a parallel flash image.
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ETEXI
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DEF("boot", HAS_ARG, QEMU_OPTION_boot,
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"-boot [order=drives][,once=drives][,menu=on|off]\n"
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" 'drives': floppy (a), hard disk (c), CD-ROM (d), network (n)\n",
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QEMU_ARCH_ALL)
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STEXI
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@item -boot [order=@var{drives}][,once=@var{drives}][,menu=on|off]
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@findex -boot
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Specify boot order @var{drives} as a string of drive letters. Valid
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drive letters depend on the target achitecture. The x86 PC uses: a, b
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(floppy 1 and 2), c (first hard disk), d (first CD-ROM), n-p (Etherboot
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from network adapter 1-4), hard disk boot is the default. To apply a
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particular boot order only on the first startup, specify it via
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@option{once}.
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Interactive boot menus/prompts can be enabled via @option{menu=on} as far
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as firmware/BIOS supports them. The default is non-interactive boot.
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@example
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# try to boot from network first, then from hard disk
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qemu -boot order=nc
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# boot from CD-ROM first, switch back to default order after reboot
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qemu -boot once=d
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@end example
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Note: The legacy format '-boot @var{drives}' is still supported but its
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use is discouraged as it may be removed from future versions.
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ETEXI
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DEF("snapshot", 0, QEMU_OPTION_snapshot,
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"-snapshot write to temporary files instead of disk image files\n",
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QEMU_ARCH_ALL)
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STEXI
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@item -snapshot
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@findex -snapshot
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Write to temporary files instead of disk image files. In this case,
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the raw disk image you use is not written back. You can however force
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the write back by pressing @key{C-a s} (@pxref{disk_images}).
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ETEXI
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DEF("m", HAS_ARG, QEMU_OPTION_m,
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"-m megs set virtual RAM size to megs MB [default="
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stringify(DEFAULT_RAM_SIZE) "]\n", QEMU_ARCH_ALL)
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STEXI
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@item -m @var{megs}
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@findex -m
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Set virtual RAM size to @var{megs} megabytes. Default is 128 MiB. Optionally,
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a suffix of ``M'' or ``G'' can be used to signify a value in megabytes or
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gigabytes respectively.
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ETEXI
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DEF("mem-path", HAS_ARG, QEMU_OPTION_mempath,
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"-mem-path FILE provide backing storage for guest RAM\n", QEMU_ARCH_ALL)
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STEXI
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@item -mem-path @var{path}
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Allocate guest RAM from a temporarily created file in @var{path}.
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ETEXI
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|
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#ifdef MAP_POPULATE
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DEF("mem-prealloc", 0, QEMU_OPTION_mem_prealloc,
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"-mem-prealloc preallocate guest memory (use with -mem-path)\n",
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QEMU_ARCH_ALL)
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STEXI
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@item -mem-prealloc
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Preallocate memory when using -mem-path.
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ETEXI
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#endif
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|
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DEF("k", HAS_ARG, QEMU_OPTION_k,
|
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"-k language use keyboard layout (for example 'fr' for French)\n",
|
|
QEMU_ARCH_ALL)
|
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STEXI
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|
@item -k @var{language}
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@findex -k
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|
Use keyboard layout @var{language} (for example @code{fr} for
|
|
French). This option is only needed where it is not easy to get raw PC
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keycodes (e.g. on Macs, with some X11 servers or with a VNC
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display). You don't normally need to use it on PC/Linux or PC/Windows
|
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hosts.
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|
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The available layouts are:
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@example
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ar de-ch es fo fr-ca hu ja mk no pt-br sv
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da en-gb et fr fr-ch is lt nl pl ru th
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de en-us fi fr-be hr it lv nl-be pt sl tr
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@end example
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The default is @code{en-us}.
|
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ETEXI
|
|
|
|
|
|
DEF("audio-help", 0, QEMU_OPTION_audio_help,
|
|
"-audio-help print list of audio drivers and their options\n",
|
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QEMU_ARCH_ALL)
|
|
STEXI
|
|
@item -audio-help
|
|
@findex -audio-help
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|
Will show the audio subsystem help: list of drivers, tunable
|
|
parameters.
|
|
ETEXI
|
|
|
|
DEF("soundhw", HAS_ARG, QEMU_OPTION_soundhw,
|
|
"-soundhw c1,... enable audio support\n"
|
|
" and only specified sound cards (comma separated list)\n"
|
|
" use -soundhw ? to get the list of supported cards\n"
|
|
" use -soundhw all to enable all of them\n", QEMU_ARCH_ALL)
|
|
STEXI
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|
@item -soundhw @var{card1}[,@var{card2},...] or -soundhw all
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|
@findex -soundhw
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|
Enable audio and selected sound hardware. Use ? to print all
|
|
available sound hardware.
|
|
|
|
@example
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qemu -soundhw sb16,adlib disk.img
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qemu -soundhw es1370 disk.img
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qemu -soundhw ac97 disk.img
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qemu -soundhw all disk.img
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qemu -soundhw ?
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@end example
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|
|
|
Note that Linux's i810_audio OSS kernel (for AC97) module might
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require manually specifying clocking.
|
|
|
|
@example
|
|
modprobe i810_audio clocking=48000
|
|
@end example
|
|
ETEXI
|
|
|
|
STEXI
|
|
@end table
|
|
ETEXI
|
|
|
|
DEF("usb", 0, QEMU_OPTION_usb,
|
|
"-usb enable the USB driver (will be the default soon)\n",
|
|
QEMU_ARCH_ALL)
|
|
STEXI
|
|
USB options:
|
|
@table @option
|
|
|
|
@item -usb
|
|
@findex -usb
|
|
Enable the USB driver (will be the default soon)
|
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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
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|
Add the USB device @var{devname}. @xref{usb_devices}.
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|
|
|
@table @option
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|
|
|
@item mouse
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|
Virtual Mouse. This will override the PS/2 mouse emulation when activated.
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|
|
|
@item tablet
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|
Pointer device that uses absolute coordinates (like a touchscreen). This
|
|
means qemu is able to report the mouse position without having to grab the
|
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mouse. Also overrides the PS/2 mouse emulation when activated.
|
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|
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@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
|
|
|
|
DEF("device", HAS_ARG, QEMU_OPTION_device,
|
|
"-device driver[,prop[=value][,...]]\n"
|
|
" add device (based on driver)\n"
|
|
" prop=value,... sets driver properties\n"
|
|
" use -device ? to print all possible drivers\n"
|
|
" use -device driver,? to print all possible properties\n",
|
|
QEMU_ARCH_ALL)
|
|
STEXI
|
|
@item -device @var{driver}[,@var{prop}[=@var{value}][,...]]
|
|
@findex -device
|
|
Add device @var{driver}. @var{prop}=@var{value} sets driver
|
|
properties. Valid properties depend on the driver. To get help on
|
|
possible drivers and properties, use @code{-device ?} and
|
|
@code{-device @var{driver},?}.
|
|
ETEXI
|
|
|
|
DEFHEADING(File system options:)
|
|
|
|
DEF("fsdev", HAS_ARG, QEMU_OPTION_fsdev,
|
|
"-fsdev local,id=id,path=path,security_model=[mapped|passthrough|none]\n",
|
|
QEMU_ARCH_ALL)
|
|
|
|
STEXI
|
|
|
|
The general form of a File system device option is:
|
|
@table @option
|
|
|
|
@item -fsdev @var{fstype} ,id=@var{id} [,@var{options}]
|
|
@findex -fsdev
|
|
Fstype is one of:
|
|
@option{local},
|
|
The specific Fstype will determine the applicable options.
|
|
|
|
Options to each backend are described below.
|
|
|
|
@item -fsdev local ,id=@var{id} ,path=@var{path} ,security_model=@var{security_model}
|
|
|
|
Create a file-system-"device" for local-filesystem.
|
|
|
|
@option{local} is only available on Linux.
|
|
|
|
@option{path} specifies the path to be exported. @option{path} is required.
|
|
|
|
@option{security_model} specifies the security model to be followed.
|
|
@option{security_model} is required.
|
|
|
|
@end table
|
|
ETEXI
|
|
|
|
DEFHEADING(Virtual File system pass-through options:)
|
|
|
|
DEF("virtfs", HAS_ARG, QEMU_OPTION_virtfs,
|
|
"-virtfs local,path=path,mount_tag=tag,security_model=[mapped|passthrough|none]\n",
|
|
QEMU_ARCH_ALL)
|
|
|
|
STEXI
|
|
|
|
The general form of a Virtual File system pass-through option is:
|
|
@table @option
|
|
|
|
@item -virtfs @var{fstype} [,@var{options}]
|
|
@findex -virtfs
|
|
Fstype is one of:
|
|
@option{local},
|
|
The specific Fstype will determine the applicable options.
|
|
|
|
Options to each backend are described below.
|
|
|
|
@item -virtfs local ,path=@var{path} ,mount_tag=@var{mount_tag} ,security_model=@var{security_model}
|
|
|
|
Create a Virtual file-system-pass through for local-filesystem.
|
|
|
|
@option{local} is only available on Linux.
|
|
|
|
@option{path} specifies the path to be exported. @option{path} is required.
|
|
|
|
@option{security_model} specifies the security model to be followed.
|
|
@option{security_model} is required.
|
|
|
|
|
|
@option{mount_tag} specifies the tag with which the exported file is mounted.
|
|
@option{mount_tag} is required.
|
|
|
|
@end table
|
|
ETEXI
|
|
|
|
DEFHEADING()
|
|
|
|
DEF("name", HAS_ARG, QEMU_OPTION_name,
|
|
"-name string1[,process=string2]\n"
|
|
" set the name of the guest\n"
|
|
" string1 sets the window title and string2 the process name (on Linux)\n",
|
|
QEMU_ARCH_ALL)
|
|
STEXI
|
|
@item -name @var{name}
|
|
@findex -name
|
|
Sets the @var{name} of the guest.
|
|
This name will be displayed in the SDL window caption.
|
|
The @var{name} will also be used for the VNC server.
|
|
Also optionally set the top visible process name in Linux.
|
|
ETEXI
|
|
|
|
DEF("uuid", HAS_ARG, QEMU_OPTION_uuid,
|
|
"-uuid %08x-%04x-%04x-%04x-%012x\n"
|
|
" specify machine UUID\n", QEMU_ARCH_ALL)
|
|
STEXI
|
|
@item -uuid @var{uuid}
|
|
@findex -uuid
|
|
Set system UUID.
|
|
ETEXI
|
|
|
|
STEXI
|
|
@end table
|
|
ETEXI
|
|
|
|
DEFHEADING()
|
|
|
|
DEFHEADING(Display options:)
|
|
|
|
STEXI
|
|
@table @option
|
|
ETEXI
|
|
|
|
DEF("nographic", 0, QEMU_OPTION_nographic,
|
|
"-nographic disable graphical output and redirect serial I/Os to console\n",
|
|
QEMU_ARCH_ALL)
|
|
STEXI
|
|
@item -nographic
|
|
@findex -nographic
|
|
Normally, QEMU uses SDL to display the VGA output. With this option,
|
|
you can totally disable graphical output so that QEMU is a simple
|
|
command line application. The emulated serial port is redirected on
|
|
the console. Therefore, you can still use QEMU to debug a Linux kernel
|
|
with a serial console.
|
|
ETEXI
|
|
|
|
#ifdef CONFIG_CURSES
|
|
DEF("curses", 0, QEMU_OPTION_curses,
|
|
"-curses use a curses/ncurses interface instead of SDL\n",
|
|
QEMU_ARCH_ALL)
|
|
#endif
|
|
STEXI
|
|
@item -curses
|
|
@findex curses
|
|
Normally, QEMU uses SDL to display the VGA output. With this option,
|
|
QEMU can display the VGA output when in text mode using a
|
|
curses/ncurses interface. Nothing is displayed in graphical mode.
|
|
ETEXI
|
|
|
|
#ifdef CONFIG_SDL
|
|
DEF("no-frame", 0, QEMU_OPTION_no_frame,
|
|
"-no-frame open SDL window without a frame and window decorations\n",
|
|
QEMU_ARCH_ALL)
|
|
#endif
|
|
STEXI
|
|
@item -no-frame
|
|
@findex -no-frame
|
|
Do not use decorations for SDL windows and start them using the whole
|
|
available screen space. This makes the using QEMU in a dedicated desktop
|
|
workspace more convenient.
|
|
ETEXI
|
|
|
|
#ifdef CONFIG_SDL
|
|
DEF("alt-grab", 0, QEMU_OPTION_alt_grab,
|
|
"-alt-grab use Ctrl-Alt-Shift to grab mouse (instead of Ctrl-Alt)\n",
|
|
QEMU_ARCH_ALL)
|
|
#endif
|
|
STEXI
|
|
@item -alt-grab
|
|
@findex -alt-grab
|
|
Use Ctrl-Alt-Shift to grab mouse (instead of Ctrl-Alt).
|
|
ETEXI
|
|
|
|
#ifdef CONFIG_SDL
|
|
DEF("ctrl-grab", 0, QEMU_OPTION_ctrl_grab,
|
|
"-ctrl-grab use Right-Ctrl to grab mouse (instead of Ctrl-Alt)\n",
|
|
QEMU_ARCH_ALL)
|
|
#endif
|
|
STEXI
|
|
@item -ctrl-grab
|
|
@findex -ctrl-grab
|
|
Use Right-Ctrl to grab mouse (instead of Ctrl-Alt).
|
|
ETEXI
|
|
|
|
#ifdef CONFIG_SDL
|
|
DEF("no-quit", 0, QEMU_OPTION_no_quit,
|
|
"-no-quit disable SDL window close capability\n", QEMU_ARCH_ALL)
|
|
#endif
|
|
STEXI
|
|
@item -no-quit
|
|
@findex -no-quit
|
|
Disable SDL window close capability.
|
|
ETEXI
|
|
|
|
#ifdef CONFIG_SDL
|
|
DEF("sdl", 0, QEMU_OPTION_sdl,
|
|
"-sdl enable SDL\n", QEMU_ARCH_ALL)
|
|
#endif
|
|
STEXI
|
|
@item -sdl
|
|
@findex -sdl
|
|
Enable SDL.
|
|
ETEXI
|
|
|
|
DEF("portrait", 0, QEMU_OPTION_portrait,
|
|
"-portrait rotate graphical output 90 deg left (only PXA LCD)\n",
|
|
QEMU_ARCH_ALL)
|
|
STEXI
|
|
@item -portrait
|
|
@findex -portrait
|
|
Rotate graphical output 90 deg left (only PXA LCD).
|
|
ETEXI
|
|
|
|
DEF("vga", HAS_ARG, QEMU_OPTION_vga,
|
|
"-vga [std|cirrus|vmware|xenfb|none]\n"
|
|
" select video card type\n", QEMU_ARCH_ALL)
|
|
STEXI
|
|
@item -vga @var{type}
|
|
@findex -vga
|
|
Select type of VGA card to emulate. Valid values for @var{type} are
|
|
@table @option
|
|
@item cirrus
|
|
Cirrus Logic GD5446 Video card. All Windows versions starting from
|
|
Windows 95 should recognize and use this graphic card. For optimal
|
|
performances, use 16 bit color depth in the guest and the host OS.
|
|
(This one is the default)
|
|
@item std
|
|
Standard VGA card with Bochs VBE extensions. If your guest OS
|
|
supports the VESA 2.0 VBE extensions (e.g. Windows XP) and if you want
|
|
to use high resolution modes (>= 1280x1024x16) then you should use
|
|
this option.
|
|
@item vmware
|
|
VMWare SVGA-II compatible adapter. Use it if you have sufficiently
|
|
recent XFree86/XOrg server or Windows guest with a driver for this
|
|
card.
|
|
@item none
|
|
Disable VGA card.
|
|
@end table
|
|
ETEXI
|
|
|
|
DEF("full-screen", 0, QEMU_OPTION_full_screen,
|
|
"-full-screen start in full screen\n", QEMU_ARCH_ALL)
|
|
STEXI
|
|
@item -full-screen
|
|
@findex -full-screen
|
|
Start in full screen.
|
|
ETEXI
|
|
|
|
DEF("g", 1, QEMU_OPTION_g ,
|
|
"-g WxH[xDEPTH] Set the initial graphical resolution and depth\n",
|
|
QEMU_ARCH_PPC | QEMU_ARCH_SPARC)
|
|
STEXI
|
|
@item -g @var{width}x@var{height}[x@var{depth}]
|
|
@findex -g
|
|
Set the initial graphical resolution and depth (PPC, SPARC only).
|
|
ETEXI
|
|
|
|
DEF("vnc", HAS_ARG, QEMU_OPTION_vnc ,
|
|
"-vnc display start a VNC server on display\n", QEMU_ARCH_ALL)
|
|
STEXI
|
|
@item -vnc @var{display}[,@var{option}[,@var{option}[,...]]]
|
|
@findex -vnc
|
|
Normally, QEMU uses SDL to display the VGA output. With this option,
|
|
you can have QEMU listen on VNC display @var{display} and redirect the VGA
|
|
display over the VNC session. It is very useful to enable the usb
|
|
tablet device when using this option (option @option{-usbdevice
|
|
tablet}). When using the VNC display, you must use the @option{-k}
|
|
parameter to set the keyboard layout if you are not using en-us. Valid
|
|
syntax for the @var{display} is
|
|
|
|
@table @option
|
|
|
|
@item @var{host}:@var{d}
|
|
|
|
TCP connections will only be allowed from @var{host} on display @var{d}.
|
|
By convention the TCP port is 5900+@var{d}. Optionally, @var{host} can
|
|
be omitted in which case the server will accept connections from any host.
|
|
|
|
@item unix:@var{path}
|
|
|
|
Connections will be allowed over UNIX domain sockets where @var{path} is the
|
|
location of a unix socket to listen for connections on.
|
|
|
|
@item none
|
|
|
|
VNC is initialized but not started. The monitor @code{change} command
|
|
can be used to later start the VNC server.
|
|
|
|
@end table
|
|
|
|
Following the @var{display} value there may be one or more @var{option} flags
|
|
separated by commas. Valid options are
|
|
|
|
@table @option
|
|
|
|
@item reverse
|
|
|
|
Connect to a listening VNC client via a ``reverse'' connection. The
|
|
client is specified by the @var{display}. For reverse network
|
|
connections (@var{host}:@var{d},@code{reverse}), the @var{d} argument
|
|
is a TCP port number, not a display number.
|
|
|
|
@item password
|
|
|
|
Require that password based authentication is used for client connections.
|
|
The password must be set separately using the @code{change} command in the
|
|
@ref{pcsys_monitor}
|
|
|
|
@item tls
|
|
|
|
Require that client use TLS when communicating with the VNC server. This
|
|
uses anonymous TLS credentials so is susceptible to a man-in-the-middle
|
|
attack. It is recommended that this option be combined with either the
|
|
@option{x509} or @option{x509verify} options.
|
|
|
|
@item x509=@var{/path/to/certificate/dir}
|
|
|
|
Valid if @option{tls} is specified. Require that x509 credentials are used
|
|
for negotiating the TLS session. The server will send its x509 certificate
|
|
to the client. It is recommended that a password be set on the VNC server
|
|
to provide authentication of the client when this is used. The path following
|
|
this option specifies where the x509 certificates are to be loaded from.
|
|
See the @ref{vnc_security} section for details on generating certificates.
|
|
|
|
@item x509verify=@var{/path/to/certificate/dir}
|
|
|
|
Valid if @option{tls} is specified. Require that x509 credentials are used
|
|
for negotiating the TLS session. The server will send its x509 certificate
|
|
to the client, and request that the client send its own x509 certificate.
|
|
The server will validate the client's certificate against the CA certificate,
|
|
and reject clients when validation fails. If the certificate authority is
|
|
trusted, this is a sufficient authentication mechanism. You may still wish
|
|
to set a password on the VNC server as a second authentication layer. The
|
|
path following this option specifies where the x509 certificates are to
|
|
be loaded from. See the @ref{vnc_security} section for details on generating
|
|
certificates.
|
|
|
|
@item sasl
|
|
|
|
Require that the client use SASL to authenticate with the VNC server.
|
|
The exact choice of authentication method used is controlled from the
|
|
system / user's SASL configuration file for the 'qemu' service. This
|
|
is typically found in /etc/sasl2/qemu.conf. If running QEMU as an
|
|
unprivileged user, an environment variable SASL_CONF_PATH can be used
|
|
to make it search alternate locations for the service config.
|
|
While some SASL auth methods can also provide data encryption (eg GSSAPI),
|
|
it is recommended that SASL always be combined with the 'tls' and
|
|
'x509' settings to enable use of SSL and server certificates. This
|
|
ensures a data encryption preventing compromise of authentication
|
|
credentials. See the @ref{vnc_security} section for details on using
|
|
SASL authentication.
|
|
|
|
@item acl
|
|
|
|
Turn on access control lists for checking of the x509 client certificate
|
|
and SASL party. For x509 certs, the ACL check is made against the
|
|
certificate's distinguished name. This is something that looks like
|
|
@code{C=GB,O=ACME,L=Boston,CN=bob}. For SASL party, the ACL check is
|
|
made against the username, which depending on the SASL plugin, may
|
|
include a realm component, eg @code{bob} or @code{bob@@EXAMPLE.COM}.
|
|
When the @option{acl} flag is set, the initial access list will be
|
|
empty, with a @code{deny} policy. Thus no one will be allowed to
|
|
use the VNC server until the ACLs have been loaded. This can be
|
|
achieved using the @code{acl} monitor command.
|
|
|
|
@item lossy
|
|
|
|
Enable lossy compression methods (gradient, JPEG, ...). If this
|
|
option is set, VNC client may receive lossy framebuffer updates
|
|
depending on its encoding settings. Enabling this option can save
|
|
a lot of bandwidth at the expense of quality.
|
|
|
|
@end table
|
|
ETEXI
|
|
|
|
STEXI
|
|
@end table
|
|
ETEXI
|
|
|
|
DEFHEADING()
|
|
|
|
DEFHEADING(i386 target only:)
|
|
STEXI
|
|
@table @option
|
|
ETEXI
|
|
|
|
DEF("win2k-hack", 0, QEMU_OPTION_win2k_hack,
|
|
"-win2k-hack use it when installing Windows 2000 to avoid a disk full bug\n",
|
|
QEMU_ARCH_I386)
|
|
STEXI
|
|
@item -win2k-hack
|
|
@findex -win2k-hack
|
|
Use it when installing Windows 2000 to avoid a disk full bug. After
|
|
Windows 2000 is installed, you no longer need this option (this option
|
|
slows down the IDE transfers).
|
|
ETEXI
|
|
|
|
HXCOMM Deprecated by -rtc
|
|
DEF("rtc-td-hack", 0, QEMU_OPTION_rtc_td_hack, "", QEMU_ARCH_I386)
|
|
|
|
DEF("no-fd-bootchk", 0, QEMU_OPTION_no_fd_bootchk,
|
|
"-no-fd-bootchk disable boot signature checking for floppy disks\n",
|
|
QEMU_ARCH_I386)
|
|
STEXI
|
|
@item -no-fd-bootchk
|
|
@findex -no-fd-bootchk
|
|
Disable boot signature checking for floppy disks in Bochs BIOS. It may
|
|
be needed to boot from old floppy disks.
|
|
TODO: check reference to Bochs BIOS.
|
|
ETEXI
|
|
|
|
DEF("no-acpi", 0, QEMU_OPTION_no_acpi,
|
|
"-no-acpi disable ACPI\n", QEMU_ARCH_I386)
|
|
STEXI
|
|
@item -no-acpi
|
|
@findex -no-acpi
|
|
Disable ACPI (Advanced Configuration and Power Interface) support. Use
|
|
it if your guest OS complains about ACPI problems (PC target machine
|
|
only).
|
|
ETEXI
|
|
|
|
DEF("no-hpet", 0, QEMU_OPTION_no_hpet,
|
|
"-no-hpet disable HPET\n", QEMU_ARCH_I386)
|
|
STEXI
|
|
@item -no-hpet
|
|
@findex -no-hpet
|
|
Disable HPET support.
|
|
ETEXI
|
|
|
|
DEF("balloon", HAS_ARG, QEMU_OPTION_balloon,
|
|
"-balloon none disable balloon device\n"
|
|
"-balloon virtio[,addr=str]\n"
|
|
" enable virtio balloon device (default)\n", QEMU_ARCH_ALL)
|
|
STEXI
|
|
@item -balloon none
|
|
@findex -balloon
|
|
Disable balloon device.
|
|
@item -balloon virtio[,addr=@var{addr}]
|
|
Enable virtio balloon device (default), optionally with PCI address
|
|
@var{addr}.
|
|
ETEXI
|
|
|
|
DEF("acpitable", HAS_ARG, QEMU_OPTION_acpitable,
|
|
"-acpitable [sig=str][,rev=n][,oem_id=str][,oem_table_id=str][,oem_rev=n][,asl_compiler_id=str][,asl_compiler_rev=n][,data=file1[:file2]...]\n"
|
|
" ACPI table description\n", QEMU_ARCH_I386)
|
|
STEXI
|
|
@item -acpitable [sig=@var{str}][,rev=@var{n}][,oem_id=@var{str}][,oem_table_id=@var{str}][,oem_rev=@var{n}] [,asl_compiler_id=@var{str}][,asl_compiler_rev=@var{n}][,data=@var{file1}[:@var{file2}]...]
|
|
@findex -acpitable
|
|
Add ACPI table with specified header fields and context from specified files.
|
|
ETEXI
|
|
|
|
DEF("smbios", HAS_ARG, QEMU_OPTION_smbios,
|
|
"-smbios file=binary\n"
|
|
" load SMBIOS entry from binary file\n"
|
|
"-smbios type=0[,vendor=str][,version=str][,date=str][,release=%d.%d]\n"
|
|
" specify SMBIOS type 0 fields\n"
|
|
"-smbios type=1[,manufacturer=str][,product=str][,version=str][,serial=str]\n"
|
|
" [,uuid=uuid][,sku=str][,family=str]\n"
|
|
" specify SMBIOS type 1 fields\n", QEMU_ARCH_I386)
|
|
STEXI
|
|
@item -smbios file=@var{binary}
|
|
@findex -smbios
|
|
Load SMBIOS entry from binary file.
|
|
|
|
@item -smbios type=0[,vendor=@var{str}][,version=@var{str}][,date=@var{str}][,release=@var{%d.%d}]
|
|
@findex -smbios
|
|
Specify SMBIOS type 0 fields
|
|
|
|
@item -smbios type=1[,manufacturer=@var{str}][,product=@var{str}] [,version=@var{str}][,serial=@var{str}][,uuid=@var{uuid}][,sku=@var{str}] [,family=@var{str}]
|
|
Specify SMBIOS type 1 fields
|
|
ETEXI
|
|
|
|
DEFHEADING()
|
|
STEXI
|
|
@end table
|
|
ETEXI
|
|
|
|
DEFHEADING(Network options:)
|
|
STEXI
|
|
@table @option
|
|
ETEXI
|
|
|
|
HXCOMM Legacy slirp options (now moved to -net user):
|
|
#ifdef CONFIG_SLIRP
|
|
DEF("tftp", HAS_ARG, QEMU_OPTION_tftp, "", QEMU_ARCH_ALL)
|
|
DEF("bootp", HAS_ARG, QEMU_OPTION_bootp, "", QEMU_ARCH_ALL)
|
|
DEF("redir", HAS_ARG, QEMU_OPTION_redir, "", QEMU_ARCH_ALL)
|
|
#ifndef _WIN32
|
|
DEF("smb", HAS_ARG, QEMU_OPTION_smb, "", QEMU_ARCH_ALL)
|
|
#endif
|
|
#endif
|
|
|
|
DEF("net", HAS_ARG, QEMU_OPTION_net,
|
|
"-net nic[,vlan=n][,macaddr=mac][,model=type][,name=str][,addr=str][,vectors=v]\n"
|
|
" create a new Network Interface Card and connect it to VLAN 'n'\n"
|
|
#ifdef CONFIG_SLIRP
|
|
"-net user[,vlan=n][,name=str][,net=addr[/mask]][,host=addr][,restrict=y|n]\n"
|
|
" [,hostname=host][,dhcpstart=addr][,dns=addr][,tftp=dir][,bootfile=f]\n"
|
|
" [,hostfwd=rule][,guestfwd=rule]"
|
|
#ifndef _WIN32
|
|
"[,smb=dir[,smbserver=addr]]\n"
|
|
#endif
|
|
" connect the user mode network stack to VLAN 'n', configure its\n"
|
|
" DHCP server and enabled optional services\n"
|
|
#endif
|
|
#ifdef _WIN32
|
|
"-net tap[,vlan=n][,name=str],ifname=name\n"
|
|
" connect the host TAP network interface to VLAN 'n'\n"
|
|
#else
|
|
"-net tap[,vlan=n][,name=str][,fd=h][,ifname=name][,script=file][,downscript=dfile][,sndbuf=nbytes][,vnet_hdr=on|off][,vhost=on|off][,vhostfd=h]\n"
|
|
" connect the host TAP network interface to VLAN 'n' and use the\n"
|
|
" network scripts 'file' (default=" DEFAULT_NETWORK_SCRIPT ")\n"
|
|
" and 'dfile' (default=" DEFAULT_NETWORK_DOWN_SCRIPT ")\n"
|
|
" use '[down]script=no' to disable script execution\n"
|
|
" use 'fd=h' to connect to an already opened TAP interface\n"
|
|
" use 'sndbuf=nbytes' to limit the size of the send buffer (the\n"
|
|
" default of 'sndbuf=1048576' can be disabled using 'sndbuf=0')\n"
|
|
" use vnet_hdr=off to avoid enabling the IFF_VNET_HDR tap flag\n"
|
|
" use vnet_hdr=on to make the lack of IFF_VNET_HDR support an error condition\n"
|
|
" use vhost=on to enable experimental in kernel accelerator\n"
|
|
" use 'vhostfd=h' to connect to an already opened vhost net device\n"
|
|
#endif
|
|
"-net socket[,vlan=n][,name=str][,fd=h][,listen=[host]:port][,connect=host:port]\n"
|
|
" connect the vlan 'n' to another VLAN using a socket connection\n"
|
|
"-net socket[,vlan=n][,name=str][,fd=h][,mcast=maddr:port]\n"
|
|
" connect the vlan 'n' to multicast maddr and port\n"
|
|
#ifdef CONFIG_VDE
|
|
"-net vde[,vlan=n][,name=str][,sock=socketpath][,port=n][,group=groupname][,mode=octalmode]\n"
|
|
" connect the vlan 'n' to port 'n' of a vde switch running\n"
|
|
" on host and listening for incoming connections on 'socketpath'.\n"
|
|
" Use group 'groupname' and mode 'octalmode' to change default\n"
|
|
" ownership and permissions for communication port.\n"
|
|
#endif
|
|
"-net dump[,vlan=n][,file=f][,len=n]\n"
|
|
" dump traffic on vlan 'n' to file 'f' (max n bytes per packet)\n"
|
|
"-net none use it alone to have zero network devices. If no -net option\n"
|
|
" is provided, the default is '-net nic -net user'\n", QEMU_ARCH_ALL)
|
|
DEF("netdev", HAS_ARG, QEMU_OPTION_netdev,
|
|
"-netdev ["
|
|
#ifdef CONFIG_SLIRP
|
|
"user|"
|
|
#endif
|
|
"tap|"
|
|
#ifdef CONFIG_VDE
|
|
"vde|"
|
|
#endif
|
|
"socket],id=str[,option][,option][,...]\n", QEMU_ARCH_ALL)
|
|
STEXI
|
|
@item -net nic[,vlan=@var{n}][,macaddr=@var{mac}][,model=@var{type}] [,name=@var{name}][,addr=@var{addr}][,vectors=@var{v}]
|
|
@findex -net
|
|
Create a new Network Interface Card and connect it to VLAN @var{n} (@var{n}
|
|
= 0 is the default). The NIC is an e1000 by default on the PC
|
|
target. Optionally, the MAC address can be changed to @var{mac}, the
|
|
device address set to @var{addr} (PCI cards only),
|
|
and a @var{name} can be assigned for use in monitor commands.
|
|
Optionally, for PCI cards, you can specify the number @var{v} of MSI-X vectors
|
|
that the card should have; this option currently only affects virtio cards; set
|
|
@var{v} = 0 to disable MSI-X. If no @option{-net} option is specified, a single
|
|
NIC is created. Qemu can emulate several different models of network card.
|
|
Valid values for @var{type} are
|
|
@code{virtio}, @code{i82551}, @code{i82557b}, @code{i82559er},
|
|
@code{ne2k_pci}, @code{ne2k_isa}, @code{pcnet}, @code{rtl8139},
|
|
@code{e1000}, @code{smc91c111}, @code{lance} and @code{mcf_fec}.
|
|
Not all devices are supported on all targets. Use -net nic,model=?
|
|
for a list of available devices for your target.
|
|
|
|
@item -net user[,@var{option}][,@var{option}][,...]
|
|
Use the user mode network stack which requires no administrator
|
|
privilege to run. Valid options are:
|
|
|
|
@table @option
|
|
@item vlan=@var{n}
|
|
Connect user mode stack to VLAN @var{n} (@var{n} = 0 is the default).
|
|
|
|
@item name=@var{name}
|
|
Assign symbolic name for use in monitor commands.
|
|
|
|
@item net=@var{addr}[/@var{mask}]
|
|
Set IP network address the guest will see. Optionally specify the netmask,
|
|
either in the form a.b.c.d or as number of valid top-most bits. Default is
|
|
10.0.2.0/8.
|
|
|
|
@item host=@var{addr}
|
|
Specify the guest-visible address of the host. Default is the 2nd IP in the
|
|
guest network, i.e. x.x.x.2.
|
|
|
|
@item restrict=y|yes|n|no
|
|
If this options is enabled, the guest will be isolated, i.e. it will not be
|
|
able to contact the host and no guest IP packets will be routed over the host
|
|
to the outside. This option does not affect explicitly set forwarding rule.
|
|
|
|
@item hostname=@var{name}
|
|
Specifies the client hostname reported by the builtin DHCP server.
|
|
|
|
@item dhcpstart=@var{addr}
|
|
Specify the first of the 16 IPs the built-in DHCP server can assign. Default
|
|
is the 16th to 31st IP in the guest network, i.e. x.x.x.16 to x.x.x.31.
|
|
|
|
@item dns=@var{addr}
|
|
Specify the guest-visible address of the virtual nameserver. The address must
|
|
be different from the host address. Default is the 3rd IP in the guest network,
|
|
i.e. x.x.x.3.
|
|
|
|
@item tftp=@var{dir}
|
|
When using the user mode network stack, activate a built-in TFTP
|
|
server. The files in @var{dir} will be exposed as the root of a TFTP server.
|
|
The TFTP client on the guest must be configured in binary mode (use the command
|
|
@code{bin} of the Unix TFTP client).
|
|
|
|
@item bootfile=@var{file}
|
|
When using the user mode network stack, broadcast @var{file} as the BOOTP
|
|
filename. In conjunction with @option{tftp}, this can be used to network boot
|
|
a guest from a local directory.
|
|
|
|
Example (using pxelinux):
|
|
@example
|
|
qemu -hda linux.img -boot n -net user,tftp=/path/to/tftp/files,bootfile=/pxelinux.0
|
|
@end example
|
|
|
|
@item smb=@var{dir}[,smbserver=@var{addr}]
|
|
When using the user mode network stack, activate a built-in SMB
|
|
server so that Windows OSes can access to the host files in @file{@var{dir}}
|
|
transparently. The IP address of the SMB server can be set to @var{addr}. By
|
|
default the 4th IP in the guest network is used, i.e. x.x.x.4.
|
|
|
|
In the guest Windows OS, the line:
|
|
@example
|
|
10.0.2.4 smbserver
|
|
@end example
|
|
must be added in the file @file{C:\WINDOWS\LMHOSTS} (for windows 9x/Me)
|
|
or @file{C:\WINNT\SYSTEM32\DRIVERS\ETC\LMHOSTS} (Windows NT/2000).
|
|
|
|
Then @file{@var{dir}} can be accessed in @file{\\smbserver\qemu}.
|
|
|
|
Note that a SAMBA server must be installed on the host OS in
|
|
@file{/usr/sbin/smbd}. QEMU was tested successfully with smbd versions from
|
|
Red Hat 9, Fedora Core 3 and OpenSUSE 11.x.
|
|
|
|
@item hostfwd=[tcp|udp]:[@var{hostaddr}]:@var{hostport}-[@var{guestaddr}]:@var{guestport}
|
|
Redirect incoming TCP or UDP connections to the host port @var{hostport} to
|
|
the guest IP address @var{guestaddr} on guest port @var{guestport}. If
|
|
@var{guestaddr} is not specified, its value is x.x.x.15 (default first address
|
|
given by the built-in DHCP server). By specifying @var{hostaddr}, the rule can
|
|
be bound to a specific host interface. If no connection type is set, TCP is
|
|
used. This option can be given multiple times.
|
|
|
|
For example, to redirect host X11 connection from screen 1 to guest
|
|
screen 0, use the following:
|
|
|
|
@example
|
|
# on the host
|
|
qemu -net user,hostfwd=tcp:127.0.0.1:6001-:6000 [...]
|
|
# this host xterm should open in the guest X11 server
|
|
xterm -display :1
|
|
@end example
|
|
|
|
To redirect telnet connections from host port 5555 to telnet port on
|
|
the guest, use the following:
|
|
|
|
@example
|
|
# on the host
|
|
qemu -net user,hostfwd=tcp::5555-:23 [...]
|
|
telnet localhost 5555
|
|
@end example
|
|
|
|
Then when you use on the host @code{telnet localhost 5555}, you
|
|
connect to the guest telnet server.
|
|
|
|
@item guestfwd=[tcp]:@var{server}:@var{port}-@var{dev}
|
|
Forward guest TCP connections to the IP address @var{server} on port @var{port}
|
|
to the character device @var{dev}. This option can be given multiple times.
|
|
|
|
@end table
|
|
|
|
Note: Legacy stand-alone options -tftp, -bootp, -smb and -redir are still
|
|
processed and applied to -net user. Mixing them with the new configuration
|
|
syntax gives undefined results. Their use for new applications is discouraged
|
|
as they will be removed from future versions.
|
|
|
|
@item -net tap[,vlan=@var{n}][,name=@var{name}][,fd=@var{h}][,ifname=@var{name}] [,script=@var{file}][,downscript=@var{dfile}]
|
|
Connect the host TAP network interface @var{name} to VLAN @var{n}, use
|
|
the network script @var{file} to configure it and the network script
|
|
@var{dfile} to deconfigure it. If @var{name} is not provided, the OS
|
|
automatically provides one. @option{fd}=@var{h} can be used to specify
|
|
the handle of an already opened host TAP interface. The default network
|
|
configure script is @file{/etc/qemu-ifup} and the default network
|
|
deconfigure script is @file{/etc/qemu-ifdown}. Use @option{script=no}
|
|
or @option{downscript=no} to disable script execution. Example:
|
|
|
|
@example
|
|
qemu linux.img -net nic -net tap
|
|
@end example
|
|
|
|
More complicated example (two NICs, each one connected to a TAP device)
|
|
@example
|
|
qemu linux.img -net nic,vlan=0 -net tap,vlan=0,ifname=tap0 \
|
|
-net nic,vlan=1 -net tap,vlan=1,ifname=tap1
|
|
@end example
|
|
|
|
@item -net socket[,vlan=@var{n}][,name=@var{name}][,fd=@var{h}] [,listen=[@var{host}]:@var{port}][,connect=@var{host}:@var{port}]
|
|
|
|
Connect the VLAN @var{n} to a remote VLAN in another QEMU virtual
|
|
machine using a TCP socket connection. If @option{listen} is
|
|
specified, QEMU waits for incoming connections on @var{port}
|
|
(@var{host} is optional). @option{connect} is used to connect to
|
|
another QEMU instance using the @option{listen} option. @option{fd}=@var{h}
|
|
specifies an already opened TCP socket.
|
|
|
|
Example:
|
|
@example
|
|
# launch a first QEMU instance
|
|
qemu linux.img -net nic,macaddr=52:54:00:12:34:56 \
|
|
-net socket,listen=:1234
|
|
# connect the VLAN 0 of this instance to the VLAN 0
|
|
# of the first instance
|
|
qemu linux.img -net nic,macaddr=52:54:00:12:34:57 \
|
|
-net socket,connect=127.0.0.1:1234
|
|
@end example
|
|
|
|
@item -net socket[,vlan=@var{n}][,name=@var{name}][,fd=@var{h}] [,mcast=@var{maddr}:@var{port}]
|
|
|
|
Create a VLAN @var{n} shared with another QEMU virtual
|
|
machines using a UDP multicast socket, effectively making a bus for
|
|
every QEMU with same multicast address @var{maddr} and @var{port}.
|
|
NOTES:
|
|
@enumerate
|
|
@item
|
|
Several QEMU can be running on different hosts and share same bus (assuming
|
|
correct multicast setup for these hosts).
|
|
@item
|
|
mcast support is compatible with User Mode Linux (argument @option{eth@var{N}=mcast}), see
|
|
@url{http://user-mode-linux.sf.net}.
|
|
@item
|
|
Use @option{fd=h} to specify an already opened UDP multicast socket.
|
|
@end enumerate
|
|
|
|
Example:
|
|
@example
|
|
# launch one QEMU instance
|
|
qemu linux.img -net nic,macaddr=52:54:00:12:34:56 \
|
|
-net socket,mcast=230.0.0.1:1234
|
|
# launch another QEMU instance on same "bus"
|
|
qemu linux.img -net nic,macaddr=52:54:00:12:34:57 \
|
|
-net socket,mcast=230.0.0.1:1234
|
|
# launch yet another QEMU instance on same "bus"
|
|
qemu linux.img -net nic,macaddr=52:54:00:12:34:58 \
|
|
-net socket,mcast=230.0.0.1:1234
|
|
@end example
|
|
|
|
Example (User Mode Linux compat.):
|
|
@example
|
|
# launch QEMU instance (note mcast address selected
|
|
# is UML's default)
|
|
qemu linux.img -net nic,macaddr=52:54:00:12:34:56 \
|
|
-net socket,mcast=239.192.168.1:1102
|
|
# launch UML
|
|
/path/to/linux ubd0=/path/to/root_fs eth0=mcast
|
|
@end example
|
|
|
|
@item -net vde[,vlan=@var{n}][,name=@var{name}][,sock=@var{socketpath}] [,port=@var{n}][,group=@var{groupname}][,mode=@var{octalmode}]
|
|
Connect VLAN @var{n} to PORT @var{n} of a vde switch running on host and
|
|
listening for incoming connections on @var{socketpath}. Use GROUP @var{groupname}
|
|
and MODE @var{octalmode} to change default ownership and permissions for
|
|
communication port. This option is available only if QEMU has been compiled
|
|
with vde support enabled.
|
|
|
|
Example:
|
|
@example
|
|
# launch vde switch
|
|
vde_switch -F -sock /tmp/myswitch
|
|
# launch QEMU instance
|
|
qemu linux.img -net nic -net vde,sock=/tmp/myswitch
|
|
@end example
|
|
|
|
@item -net dump[,vlan=@var{n}][,file=@var{file}][,len=@var{len}]
|
|
Dump network traffic on VLAN @var{n} to file @var{file} (@file{qemu-vlan0.pcap} by default).
|
|
At most @var{len} bytes (64k by default) per packet are stored. The file format is
|
|
libpcap, so it can be analyzed with tools such as tcpdump or Wireshark.
|
|
|
|
@item -net none
|
|
Indicate that no network devices should be configured. It is used to
|
|
override the default configuration (@option{-net nic -net user}) which
|
|
is activated if no @option{-net} options are provided.
|
|
|
|
@end table
|
|
ETEXI
|
|
|
|
DEFHEADING()
|
|
|
|
DEFHEADING(Character device options:)
|
|
|
|
DEF("chardev", HAS_ARG, QEMU_OPTION_chardev,
|
|
"-chardev null,id=id[,mux=on|off]\n"
|
|
"-chardev socket,id=id[,host=host],port=host[,to=to][,ipv4][,ipv6][,nodelay]\n"
|
|
" [,server][,nowait][,telnet][,mux=on|off] (tcp)\n"
|
|
"-chardev socket,id=id,path=path[,server][,nowait][,telnet],[mux=on|off] (unix)\n"
|
|
"-chardev udp,id=id[,host=host],port=port[,localaddr=localaddr]\n"
|
|
" [,localport=localport][,ipv4][,ipv6][,mux=on|off]\n"
|
|
"-chardev msmouse,id=id[,mux=on|off]\n"
|
|
"-chardev vc,id=id[[,width=width][,height=height]][[,cols=cols][,rows=rows]]\n"
|
|
" [,mux=on|off]\n"
|
|
"-chardev file,id=id,path=path[,mux=on|off]\n"
|
|
"-chardev pipe,id=id,path=path[,mux=on|off]\n"
|
|
#ifdef _WIN32
|
|
"-chardev console,id=id[,mux=on|off]\n"
|
|
"-chardev serial,id=id,path=path[,mux=on|off]\n"
|
|
#else
|
|
"-chardev pty,id=id[,mux=on|off]\n"
|
|
"-chardev stdio,id=id[,mux=on|off][,signal=on|off]\n"
|
|
#endif
|
|
#ifdef CONFIG_BRLAPI
|
|
"-chardev braille,id=id[,mux=on|off]\n"
|
|
#endif
|
|
#if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
|
|
|| defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__)
|
|
"-chardev tty,id=id,path=path[,mux=on|off]\n"
|
|
#endif
|
|
#if defined(__linux__) || defined(__FreeBSD__) || defined(__DragonFly__)
|
|
"-chardev parport,id=id,path=path[,mux=on|off]\n"
|
|
#endif
|
|
, QEMU_ARCH_ALL
|
|
)
|
|
|
|
STEXI
|
|
|
|
The general form of a character device option is:
|
|
@table @option
|
|
|
|
@item -chardev @var{backend} ,id=@var{id} [,mux=on|off] [,@var{options}]
|
|
@findex -chardev
|
|
Backend is one of:
|
|
@option{null},
|
|
@option{socket},
|
|
@option{udp},
|
|
@option{msmouse},
|
|
@option{vc},
|
|
@option{file},
|
|
@option{pipe},
|
|
@option{console},
|
|
@option{serial},
|
|
@option{pty},
|
|
@option{stdio},
|
|
@option{braille},
|
|
@option{tty},
|
|
@option{parport}.
|
|
The specific backend will determine the applicable options.
|
|
|
|
All devices must have an id, which can be any string up to 127 characters long.
|
|
It is used to uniquely identify this device in other command line directives.
|
|
|
|
A character device may be used in multiplexing mode by multiple front-ends.
|
|
The key sequence of @key{Control-a} and @key{c} will rotate the input focus
|
|
between attached front-ends. Specify @option{mux=on} to enable this mode.
|
|
|
|
Options to each backend are described below.
|
|
|
|
@item -chardev null ,id=@var{id}
|
|
A void device. This device will not emit any data, and will drop any data it
|
|
receives. The null backend does not take any options.
|
|
|
|
@item -chardev socket ,id=@var{id} [@var{TCP options} or @var{unix options}] [,server] [,nowait] [,telnet]
|
|
|
|
Create a two-way stream socket, which can be either a TCP or a unix socket. A
|
|
unix socket will be created if @option{path} is specified. Behaviour is
|
|
undefined if TCP options are specified for a unix socket.
|
|
|
|
@option{server} specifies that the socket shall be a listening socket.
|
|
|
|
@option{nowait} specifies that QEMU should not block waiting for a client to
|
|
connect to a listening socket.
|
|
|
|
@option{telnet} specifies that traffic on the socket should interpret telnet
|
|
escape sequences.
|
|
|
|
TCP and unix socket options are given below:
|
|
|
|
@table @option
|
|
|
|
@item TCP options: port=@var{port} [,host=@var{host}] [,to=@var{to}] [,ipv4] [,ipv6] [,nodelay]
|
|
|
|
@option{host} for a listening socket specifies the local address to be bound.
|
|
For a connecting socket species the remote host to connect to. @option{host} is
|
|
optional for listening sockets. If not specified it defaults to @code{0.0.0.0}.
|
|
|
|
@option{port} for a listening socket specifies the local port to be bound. For a
|
|
connecting socket specifies the port on the remote host to connect to.
|
|
@option{port} can be given as either a port number or a service name.
|
|
@option{port} is required.
|
|
|
|
@option{to} is only relevant to listening sockets. If it is specified, and
|
|
@option{port} cannot be bound, QEMU will attempt to bind to subsequent ports up
|
|
to and including @option{to} until it succeeds. @option{to} must be specified
|
|
as a port number.
|
|
|
|
@option{ipv4} and @option{ipv6} specify that either IPv4 or IPv6 must be used.
|
|
If neither is specified the socket may use either protocol.
|
|
|
|
@option{nodelay} disables the Nagle algorithm.
|
|
|
|
@item unix options: path=@var{path}
|
|
|
|
@option{path} specifies the local path of the unix socket. @option{path} is
|
|
required.
|
|
|
|
@end table
|
|
|
|
@item -chardev udp ,id=@var{id} [,host=@var{host}] ,port=@var{port} [,localaddr=@var{localaddr}] [,localport=@var{localport}] [,ipv4] [,ipv6]
|
|
|
|
Sends all traffic from the guest to a remote host over UDP.
|
|
|
|
@option{host} specifies the remote host to connect to. If not specified it
|
|
defaults to @code{localhost}.
|
|
|
|
@option{port} specifies the port on the remote host to connect to. @option{port}
|
|
is required.
|
|
|
|
@option{localaddr} specifies the local address to bind to. If not specified it
|
|
defaults to @code{0.0.0.0}.
|
|
|
|
@option{localport} specifies the local port to bind to. If not specified any
|
|
available local port will be used.
|
|
|
|
@option{ipv4} and @option{ipv6} specify that either IPv4 or IPv6 must be used.
|
|
If neither is specified the device may use either protocol.
|
|
|
|
@item -chardev msmouse ,id=@var{id}
|
|
|
|
Forward QEMU's emulated msmouse events to the guest. @option{msmouse} does not
|
|
take any options.
|
|
|
|
@item -chardev vc ,id=@var{id} [[,width=@var{width}] [,height=@var{height}]] [[,cols=@var{cols}] [,rows=@var{rows}]]
|
|
|
|
Connect to a QEMU text console. @option{vc} may optionally be given a specific
|
|
size.
|
|
|
|
@option{width} and @option{height} specify the width and height respectively of
|
|
the console, in pixels.
|
|
|
|
@option{cols} and @option{rows} specify that the console be sized to fit a text
|
|
console with the given dimensions.
|
|
|
|
@item -chardev file ,id=@var{id} ,path=@var{path}
|
|
|
|
Log all traffic received from the guest to a file.
|
|
|
|
@option{path} specifies the path of the file to be opened. This file will be
|
|
created if it does not already exist, and overwritten if it does. @option{path}
|
|
is required.
|
|
|
|
@item -chardev pipe ,id=@var{id} ,path=@var{path}
|
|
|
|
Create a two-way connection to the guest. The behaviour differs slightly between
|
|
Windows hosts and other hosts:
|
|
|
|
On Windows, a single duplex pipe will be created at
|
|
@file{\\.pipe\@option{path}}.
|
|
|
|
On other hosts, 2 pipes will be created called @file{@option{path}.in} and
|
|
@file{@option{path}.out}. Data written to @file{@option{path}.in} will be
|
|
received by the guest. Data written by the guest can be read from
|
|
@file{@option{path}.out}. QEMU will not create these fifos, and requires them to
|
|
be present.
|
|
|
|
@option{path} forms part of the pipe path as described above. @option{path} is
|
|
required.
|
|
|
|
@item -chardev console ,id=@var{id}
|
|
|
|
Send traffic from the guest to QEMU's standard output. @option{console} does not
|
|
take any options.
|
|
|
|
@option{console} is only available on Windows hosts.
|
|
|
|
@item -chardev serial ,id=@var{id} ,path=@option{path}
|
|
|
|
Send traffic from the guest to a serial device on the host.
|
|
|
|
@option{serial} is
|
|
only available on Windows hosts.
|
|
|
|
@option{path} specifies the name of the serial device to open.
|
|
|
|
@item -chardev pty ,id=@var{id}
|
|
|
|
Create a new pseudo-terminal on the host and connect to it. @option{pty} does
|
|
not take any options.
|
|
|
|
@option{pty} is not available on Windows hosts.
|
|
|
|
@item -chardev stdio ,id=@var{id} [,signal=on|off]
|
|
Connect to standard input and standard output of the qemu process.
|
|
|
|
@option{signal} controls if signals are enabled on the terminal, that includes
|
|
exiting QEMU with the key sequence @key{Control-c}. This option is enabled by
|
|
default, use @option{signal=off} to disable it.
|
|
|
|
@option{stdio} is not available on Windows hosts.
|
|
|
|
@item -chardev braille ,id=@var{id}
|
|
|
|
Connect to a local BrlAPI server. @option{braille} does not take any options.
|
|
|
|
@item -chardev tty ,id=@var{id} ,path=@var{path}
|
|
|
|
Connect to a local tty device.
|
|
|
|
@option{tty} is only available on Linux, Sun, FreeBSD, NetBSD, OpenBSD and
|
|
DragonFlyBSD hosts.
|
|
|
|
@option{path} specifies the path to the tty. @option{path} is required.
|
|
|
|
@item -chardev parport ,id=@var{id} ,path=@var{path}
|
|
|
|
@option{parport} is only available on Linux, FreeBSD and DragonFlyBSD hosts.
|
|
|
|
Connect to a local parallel port.
|
|
|
|
@option{path} specifies the path to the parallel port device. @option{path} is
|
|
required.
|
|
|
|
@end table
|
|
ETEXI
|
|
|
|
DEFHEADING()
|
|
|
|
DEFHEADING(Bluetooth(R) options:)
|
|
|
|
DEF("bt", HAS_ARG, QEMU_OPTION_bt, \
|
|
"-bt hci,null dumb bluetooth HCI - doesn't respond to commands\n" \
|
|
"-bt hci,host[:id]\n" \
|
|
" use host's HCI with the given name\n" \
|
|
"-bt hci[,vlan=n]\n" \
|
|
" emulate a standard HCI in virtual scatternet 'n'\n" \
|
|
"-bt vhci[,vlan=n]\n" \
|
|
" add host computer to virtual scatternet 'n' using VHCI\n" \
|
|
"-bt device:dev[,vlan=n]\n" \
|
|
" emulate a bluetooth device 'dev' in scatternet 'n'\n",
|
|
QEMU_ARCH_ALL)
|
|
STEXI
|
|
@table @option
|
|
|
|
@item -bt hci[...]
|
|
@findex -bt
|
|
Defines the function of the corresponding Bluetooth HCI. -bt options
|
|
are matched with the HCIs present in the chosen machine type. For
|
|
example when emulating a machine with only one HCI built into it, only
|
|
the first @code{-bt hci[...]} option is valid and defines the HCI's
|
|
logic. The Transport Layer is decided by the machine type. Currently
|
|
the machines @code{n800} and @code{n810} have one HCI and all other
|
|
machines have none.
|
|
|
|
@anchor{bt-hcis}
|
|
The following three types are recognized:
|
|
|
|
@table @option
|
|
@item -bt hci,null
|
|
(default) The corresponding Bluetooth HCI assumes no internal logic
|
|
and will not respond to any HCI commands or emit events.
|
|
|
|
@item -bt hci,host[:@var{id}]
|
|
(@code{bluez} only) The corresponding HCI passes commands / events
|
|
to / from the physical HCI identified by the name @var{id} (default:
|
|
@code{hci0}) on the computer running QEMU. Only available on @code{bluez}
|
|
capable systems like Linux.
|
|
|
|
@item -bt hci[,vlan=@var{n}]
|
|
Add a virtual, standard HCI that will participate in the Bluetooth
|
|
scatternet @var{n} (default @code{0}). Similarly to @option{-net}
|
|
VLANs, devices inside a bluetooth network @var{n} can only communicate
|
|
with other devices in the same network (scatternet).
|
|
@end table
|
|
|
|
@item -bt vhci[,vlan=@var{n}]
|
|
(Linux-host only) Create a HCI in scatternet @var{n} (default 0) attached
|
|
to the host bluetooth stack instead of to the emulated target. This
|
|
allows the host and target machines to participate in a common scatternet
|
|
and communicate. Requires the Linux @code{vhci} driver installed. Can
|
|
be used as following:
|
|
|
|
@example
|
|
qemu [...OPTIONS...] -bt hci,vlan=5 -bt vhci,vlan=5
|
|
@end example
|
|
|
|
@item -bt device:@var{dev}[,vlan=@var{n}]
|
|
Emulate a bluetooth device @var{dev} and place it in network @var{n}
|
|
(default @code{0}). QEMU can only emulate one type of bluetooth devices
|
|
currently:
|
|
|
|
@table @option
|
|
@item keyboard
|
|
Virtual wireless keyboard implementing the HIDP bluetooth profile.
|
|
@end table
|
|
@end table
|
|
ETEXI
|
|
|
|
DEFHEADING()
|
|
|
|
DEFHEADING(Linux/Multiboot boot specific:)
|
|
STEXI
|
|
|
|
When using these options, you can use a given Linux or Multiboot
|
|
kernel without installing it in the disk image. It can be useful
|
|
for easier testing of various kernels.
|
|
|
|
@table @option
|
|
ETEXI
|
|
|
|
DEF("kernel", HAS_ARG, QEMU_OPTION_kernel, \
|
|
"-kernel bzImage use 'bzImage' as kernel image\n", QEMU_ARCH_ALL)
|
|
STEXI
|
|
@item -kernel @var{bzImage}
|
|
@findex -kernel
|
|
Use @var{bzImage} as kernel image. The kernel can be either a Linux kernel
|
|
or in multiboot format.
|
|
ETEXI
|
|
|
|
DEF("append", HAS_ARG, QEMU_OPTION_append, \
|
|
"-append cmdline use 'cmdline' as kernel command line\n", QEMU_ARCH_ALL)
|
|
STEXI
|
|
@item -append @var{cmdline}
|
|
@findex -append
|
|
Use @var{cmdline} as kernel command line
|
|
ETEXI
|
|
|
|
DEF("initrd", HAS_ARG, QEMU_OPTION_initrd, \
|
|
"-initrd file use 'file' as initial ram disk\n", QEMU_ARCH_ALL)
|
|
STEXI
|
|
@item -initrd @var{file}
|
|
@findex -initrd
|
|
Use @var{file} as initial ram disk.
|
|
|
|
@item -initrd "@var{file1} arg=foo,@var{file2}"
|
|
|
|
This syntax is only available with multiboot.
|
|
|
|
Use @var{file1} and @var{file2} as modules and pass arg=foo as parameter to the
|
|
first module.
|
|
ETEXI
|
|
|
|
STEXI
|
|
@end table
|
|
ETEXI
|
|
|
|
DEFHEADING()
|
|
|
|
DEFHEADING(Debug/Expert options:)
|
|
|
|
STEXI
|
|
@table @option
|
|
ETEXI
|
|
|
|
DEF("serial", HAS_ARG, QEMU_OPTION_serial, \
|
|
"-serial dev redirect the serial port to char device 'dev'\n",
|
|
QEMU_ARCH_ALL)
|
|
STEXI
|
|
@item -serial @var{dev}
|
|
@findex -serial
|
|
Redirect the virtual serial port to host character device
|
|
@var{dev}. The default device is @code{vc} in graphical mode and
|
|
@code{stdio} in non graphical mode.
|
|
|
|
This option can be used several times to simulate up to 4 serial
|
|
ports.
|
|
|
|
Use @code{-serial none} to disable all serial ports.
|
|
|
|
Available character devices are:
|
|
@table @option
|
|
@item vc[:@var{W}x@var{H}]
|
|
Virtual console. Optionally, a width and height can be given in pixel with
|
|
@example
|
|
vc:800x600
|
|
@end example
|
|
It is also possible to specify width or height in characters:
|
|
@example
|
|
vc:80Cx24C
|
|
@end example
|
|
@item pty
|
|
[Linux only] Pseudo TTY (a new PTY is automatically allocated)
|
|
@item none
|
|
No device is allocated.
|
|
@item null
|
|
void device
|
|
@item /dev/XXX
|
|
[Linux only] Use host tty, e.g. @file{/dev/ttyS0}. The host serial port
|
|
parameters are set according to the emulated ones.
|
|
@item /dev/parport@var{N}
|
|
[Linux only, parallel port only] Use host parallel port
|
|
@var{N}. Currently SPP and EPP parallel port features can be used.
|
|
@item file:@var{filename}
|
|
Write output to @var{filename}. No character can be read.
|
|
@item stdio
|
|
[Unix only] standard input/output
|
|
@item pipe:@var{filename}
|
|
name pipe @var{filename}
|
|
@item COM@var{n}
|
|
[Windows only] Use host serial port @var{n}
|
|
@item udp:[@var{remote_host}]:@var{remote_port}[@@[@var{src_ip}]:@var{src_port}]
|
|
This implements UDP Net Console.
|
|
When @var{remote_host} or @var{src_ip} are not specified
|
|
they default to @code{0.0.0.0}.
|
|
When not using a specified @var{src_port} a random port is automatically chosen.
|
|
|
|
If you just want a simple readonly console you can use @code{netcat} or
|
|
@code{nc}, by starting qemu with: @code{-serial udp::4555} and nc as:
|
|
@code{nc -u -l -p 4555}. Any time qemu writes something to that port it
|
|
will appear in the netconsole session.
|
|
|
|
If you plan to send characters back via netconsole or you want to stop
|
|
and start qemu a lot of times, you should have qemu use the same
|
|
source port each time by using something like @code{-serial
|
|
udp::4555@@:4556} to qemu. Another approach is to use a patched
|
|
version of netcat which can listen to a TCP port and send and receive
|
|
characters via udp. If you have a patched version of netcat which
|
|
activates telnet remote echo and single char transfer, then you can
|
|
use the following options to step up a netcat redirector to allow
|
|
telnet on port 5555 to access the qemu port.
|
|
@table @code
|
|
@item Qemu Options:
|
|
-serial udp::4555@@:4556
|
|
@item netcat options:
|
|
-u -P 4555 -L 0.0.0.0:4556 -t -p 5555 -I -T
|
|
@item telnet options:
|
|
localhost 5555
|
|
@end table
|
|
|
|
@item tcp:[@var{host}]:@var{port}[,@var{server}][,nowait][,nodelay]
|
|
The TCP Net Console has two modes of operation. It can send the serial
|
|
I/O to a location or wait for a connection from a location. By default
|
|
the TCP Net Console is sent to @var{host} at the @var{port}. If you use
|
|
the @var{server} option QEMU will wait for a client socket application
|
|
to connect to the port before continuing, unless the @code{nowait}
|
|
option was specified. The @code{nodelay} option disables the Nagle buffering
|
|
algorithm. If @var{host} is omitted, 0.0.0.0 is assumed. Only
|
|
one TCP connection at a time is accepted. You can use @code{telnet} to
|
|
connect to the corresponding character device.
|
|
@table @code
|
|
@item Example to send tcp console to 192.168.0.2 port 4444
|
|
-serial tcp:192.168.0.2:4444
|
|
@item Example to listen and wait on port 4444 for connection
|
|
-serial tcp::4444,server
|
|
@item Example to not wait and listen on ip 192.168.0.100 port 4444
|
|
-serial tcp:192.168.0.100:4444,server,nowait
|
|
@end table
|
|
|
|
@item telnet:@var{host}:@var{port}[,server][,nowait][,nodelay]
|
|
The telnet protocol is used instead of raw tcp sockets. The options
|
|
work the same as if you had specified @code{-serial tcp}. The
|
|
difference is that the port acts like a telnet server or client using
|
|
telnet option negotiation. This will also allow you to send the
|
|
MAGIC_SYSRQ sequence if you use a telnet that supports sending the break
|
|
sequence. Typically in unix telnet you do it with Control-] and then
|
|
type "send break" followed by pressing the enter key.
|
|
|
|
@item unix:@var{path}[,server][,nowait]
|
|
A unix domain socket is used instead of a tcp socket. The option works the
|
|
same as if you had specified @code{-serial tcp} except the unix domain socket
|
|
@var{path} is used for connections.
|
|
|
|
@item mon:@var{dev_string}
|
|
This is a special option to allow the monitor to be multiplexed onto
|
|
another serial port. The monitor is accessed with key sequence of
|
|
@key{Control-a} and then pressing @key{c}. See monitor access
|
|
@ref{pcsys_keys} in the -nographic section for more keys.
|
|
@var{dev_string} should be any one of the serial devices specified
|
|
above. An example to multiplex the monitor onto a telnet server
|
|
listening on port 4444 would be:
|
|
@table @code
|
|
@item -serial mon:telnet::4444,server,nowait
|
|
@end table
|
|
|
|
@item braille
|
|
Braille device. This will use BrlAPI to display the braille output on a real
|
|
or fake device.
|
|
|
|
@item msmouse
|
|
Three button serial mouse. Configure the guest to use Microsoft protocol.
|
|
@end table
|
|
ETEXI
|
|
|
|
DEF("parallel", HAS_ARG, QEMU_OPTION_parallel, \
|
|
"-parallel dev redirect the parallel port to char device 'dev'\n",
|
|
QEMU_ARCH_ALL)
|
|
STEXI
|
|
@item -parallel @var{dev}
|
|
@findex -parallel
|
|
Redirect the virtual parallel port to host device @var{dev} (same
|
|
devices as the serial port). On Linux hosts, @file{/dev/parportN} can
|
|
be used to use hardware devices connected on the corresponding host
|
|
parallel port.
|
|
|
|
This option can be used several times to simulate up to 3 parallel
|
|
ports.
|
|
|
|
Use @code{-parallel none} to disable all parallel ports.
|
|
ETEXI
|
|
|
|
DEF("monitor", HAS_ARG, QEMU_OPTION_monitor, \
|
|
"-monitor dev redirect the monitor to char device 'dev'\n",
|
|
QEMU_ARCH_ALL)
|
|
STEXI
|
|
@item -monitor @var{dev}
|
|
@findex -monitor
|
|
Redirect the monitor to host device @var{dev} (same devices as the
|
|
serial port).
|
|
The default device is @code{vc} in graphical mode and @code{stdio} in
|
|
non graphical mode.
|
|
ETEXI
|
|
DEF("qmp", HAS_ARG, QEMU_OPTION_qmp, \
|
|
"-qmp dev like -monitor but opens in 'control' mode\n",
|
|
QEMU_ARCH_ALL)
|
|
STEXI
|
|
@item -qmp @var{dev}
|
|
@findex -qmp
|
|
Like -monitor but opens in 'control' mode.
|
|
ETEXI
|
|
|
|
DEF("mon", HAS_ARG, QEMU_OPTION_mon, \
|
|
"-mon chardev=[name][,mode=readline|control][,default]\n", QEMU_ARCH_ALL)
|
|
STEXI
|
|
@item -mon chardev=[name][,mode=readline|control][,default]
|
|
@findex -mon
|
|
Setup monitor on chardev @var{name}.
|
|
ETEXI
|
|
|
|
DEF("debugcon", HAS_ARG, QEMU_OPTION_debugcon, \
|
|
"-debugcon dev redirect the debug console to char device 'dev'\n",
|
|
QEMU_ARCH_ALL)
|
|
STEXI
|
|
@item -debugcon @var{dev}
|
|
@findex -debugcon
|
|
Redirect the debug console to host device @var{dev} (same devices as the
|
|
serial port). The debug console is an I/O port which is typically port
|
|
0xe9; writing to that I/O port sends output to this device.
|
|
The default device is @code{vc} in graphical mode and @code{stdio} in
|
|
non graphical mode.
|
|
ETEXI
|
|
|
|
DEF("pidfile", HAS_ARG, QEMU_OPTION_pidfile, \
|
|
"-pidfile file write PID to 'file'\n", QEMU_ARCH_ALL)
|
|
STEXI
|
|
@item -pidfile @var{file}
|
|
@findex -pidfile
|
|
Store the QEMU process PID in @var{file}. It is useful if you launch QEMU
|
|
from a script.
|
|
ETEXI
|
|
|
|
DEF("singlestep", 0, QEMU_OPTION_singlestep, \
|
|
"-singlestep always run in singlestep mode\n", QEMU_ARCH_ALL)
|
|
STEXI
|
|
@item -singlestep
|
|
@findex -singlestep
|
|
Run the emulation in single step mode.
|
|
ETEXI
|
|
|
|
DEF("S", 0, QEMU_OPTION_S, \
|
|
"-S freeze CPU at startup (use 'c' to start execution)\n",
|
|
QEMU_ARCH_ALL)
|
|
STEXI
|
|
@item -S
|
|
@findex -S
|
|
Do not start CPU at startup (you must type 'c' in the monitor).
|
|
ETEXI
|
|
|
|
DEF("gdb", HAS_ARG, QEMU_OPTION_gdb, \
|
|
"-gdb dev wait for gdb connection on 'dev'\n", QEMU_ARCH_ALL)
|
|
STEXI
|
|
@item -gdb @var{dev}
|
|
@findex -gdb
|
|
Wait for gdb connection on device @var{dev} (@pxref{gdb_usage}). Typical
|
|
connections will likely be TCP-based, but also UDP, pseudo TTY, or even
|
|
stdio are reasonable use case. The latter is allowing to start qemu from
|
|
within gdb and establish the connection via a pipe:
|
|
@example
|
|
(gdb) target remote | exec qemu -gdb stdio ...
|
|
@end example
|
|
ETEXI
|
|
|
|
DEF("s", 0, QEMU_OPTION_s, \
|
|
"-s shorthand for -gdb tcp::" DEFAULT_GDBSTUB_PORT "\n",
|
|
QEMU_ARCH_ALL)
|
|
STEXI
|
|
@item -s
|
|
@findex -s
|
|
Shorthand for -gdb tcp::1234, i.e. open a gdbserver on TCP port 1234
|
|
(@pxref{gdb_usage}).
|
|
ETEXI
|
|
|
|
DEF("d", HAS_ARG, QEMU_OPTION_d, \
|
|
"-d item1,... output log to /tmp/qemu.log (use -d ? for a list of log items)\n",
|
|
QEMU_ARCH_ALL)
|
|
STEXI
|
|
@item -d
|
|
@findex -d
|
|
Output log in /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)
|
|
STEXI
|
|
@item -L @var{path}
|
|
@findex -L
|
|
Set the directory for the BIOS, VGA BIOS and keymaps.
|
|
ETEXI
|
|
|
|
DEF("bios", HAS_ARG, QEMU_OPTION_bios, \
|
|
"-bios file set the filename for the BIOS\n", QEMU_ARCH_ALL)
|
|
STEXI
|
|
@item -bios @var{file}
|
|
@findex -bios
|
|
Set the filename for the BIOS.
|
|
ETEXI
|
|
|
|
DEF("enable-kvm", 0, QEMU_OPTION_enable_kvm, \
|
|
"-enable-kvm enable KVM full virtualization support\n", QEMU_ARCH_ALL)
|
|
STEXI
|
|
@item -enable-kvm
|
|
@findex -enable-kvm
|
|
Enable KVM full virtualization support. This option is only available
|
|
if KVM support is enabled when compiling.
|
|
ETEXI
|
|
|
|
DEF("xen-domid", HAS_ARG, QEMU_OPTION_xen_domid,
|
|
"-xen-domid id specify xen guest domain id\n", QEMU_ARCH_ALL)
|
|
DEF("xen-create", 0, QEMU_OPTION_xen_create,
|
|
"-xen-create create domain using xen hypercalls, bypassing xend\n"
|
|
" warning: should not be used when xend is in use\n",
|
|
QEMU_ARCH_ALL)
|
|
DEF("xen-attach", 0, QEMU_OPTION_xen_attach,
|
|
"-xen-attach attach to existing xen domain\n"
|
|
" xend will use this when starting qemu\n",
|
|
QEMU_ARCH_ALL)
|
|
STEXI
|
|
@item -xen-domid @var{id}
|
|
@findex -xen-domid
|
|
Specify xen guest domain @var{id} (XEN only).
|
|
@item -xen-create
|
|
@findex -xen-create
|
|
Create domain using xen hypercalls, bypassing xend.
|
|
Warning: should not be used when xend is in use (XEN only).
|
|
@item -xen-attach
|
|
@findex -xen-attach
|
|
Attach to existing xen domain.
|
|
xend will use this when starting qemu (XEN only).
|
|
ETEXI
|
|
|
|
DEF("no-reboot", 0, QEMU_OPTION_no_reboot, \
|
|
"-no-reboot exit instead of rebooting\n", QEMU_ARCH_ALL)
|
|
STEXI
|
|
@item -no-reboot
|
|
@findex -no-reboot
|
|
Exit instead of rebooting.
|
|
ETEXI
|
|
|
|
DEF("no-shutdown", 0, QEMU_OPTION_no_shutdown, \
|
|
"-no-shutdown stop before shutdown\n", QEMU_ARCH_ALL)
|
|
STEXI
|
|
@item -no-shutdown
|
|
@findex -no-shutdown
|
|
Don't exit QEMU on guest shutdown, but instead only stop the emulation.
|
|
This allows for instance switching to monitor to commit changes to the
|
|
disk image.
|
|
ETEXI
|
|
|
|
DEF("loadvm", HAS_ARG, QEMU_OPTION_loadvm, \
|
|
"-loadvm [tag|id]\n" \
|
|
" start right away with a saved state (loadvm in monitor)\n",
|
|
QEMU_ARCH_ALL)
|
|
STEXI
|
|
@item -loadvm @var{file}
|
|
@findex -loadvm
|
|
Start right away with a saved state (@code{loadvm} in monitor)
|
|
ETEXI
|
|
|
|
#ifndef _WIN32
|
|
DEF("daemonize", 0, QEMU_OPTION_daemonize, \
|
|
"-daemonize daemonize QEMU after initializing\n", QEMU_ARCH_ALL)
|
|
#endif
|
|
STEXI
|
|
@item -daemonize
|
|
@findex -daemonize
|
|
Daemonize the QEMU process after initialization. QEMU will not detach from
|
|
standard IO until it is ready to receive connections on any of its devices.
|
|
This option is a useful way for external programs to launch QEMU without having
|
|
to cope with initialization race conditions.
|
|
ETEXI
|
|
|
|
DEF("option-rom", HAS_ARG, QEMU_OPTION_option_rom, \
|
|
"-option-rom rom load a file, rom, into the option ROM space\n",
|
|
QEMU_ARCH_ALL)
|
|
STEXI
|
|
@item -option-rom @var{file}
|
|
@findex -option-rom
|
|
Load the contents of @var{file} as an option ROM.
|
|
This option is useful to load things like EtherBoot.
|
|
ETEXI
|
|
|
|
DEF("clock", HAS_ARG, QEMU_OPTION_clock, \
|
|
"-clock force the use of the given methods for timer alarm.\n" \
|
|
" To see what timers are available use -clock ?\n",
|
|
QEMU_ARCH_ALL)
|
|
STEXI
|
|
@item -clock @var{method}
|
|
@findex -clock
|
|
Force the use of the given methods for timer alarm. To see what timers
|
|
are available use -clock ?.
|
|
ETEXI
|
|
|
|
HXCOMM Options deprecated by -rtc
|
|
DEF("localtime", 0, QEMU_OPTION_localtime, "", QEMU_ARCH_ALL)
|
|
DEF("startdate", HAS_ARG, QEMU_OPTION_startdate, "", QEMU_ARCH_ALL)
|
|
|
|
DEF("rtc", HAS_ARG, QEMU_OPTION_rtc, \
|
|
"-rtc [base=utc|localtime|date][,clock=host|vm][,driftfix=none|slew]\n" \
|
|
" set the RTC base and clock, enable drift fix for clock ticks (x86 only)\n",
|
|
QEMU_ARCH_ALL)
|
|
|
|
STEXI
|
|
|
|
@item -rtc [base=utc|localtime|@var{date}][,clock=host|vm][,driftfix=none|slew]
|
|
@findex -rtc
|
|
Specify @option{base} as @code{utc} or @code{localtime} to let the RTC start at the current
|
|
UTC or local time, respectively. @code{localtime} is required for correct date in
|
|
MS-DOS or Windows. To start at a specific point in time, provide @var{date} in the
|
|
format @code{2006-06-17T16:01:21} or @code{2006-06-17}. The default base is UTC.
|
|
|
|
By default the RTC is driven by the host system time. This allows to use the
|
|
RTC as accurate reference clock inside the guest, specifically if the host
|
|
time is smoothly following an accurate external reference clock, e.g. via NTP.
|
|
If you want to isolate the guest time from the host, even prevent it from
|
|
progressing during suspension, you can set @option{clock} to @code{vm} instead.
|
|
|
|
Enable @option{driftfix} (i386 targets only) if you experience time drift problems,
|
|
specifically with Windows' ACPI HAL. This option will try to figure out how
|
|
many timer interrupts were not processed by the Windows guest and will
|
|
re-inject them.
|
|
ETEXI
|
|
|
|
DEF("icount", HAS_ARG, QEMU_OPTION_icount, \
|
|
"-icount [N|auto]\n" \
|
|
" enable virtual instruction counter with 2^N clock ticks per\n" \
|
|
" instruction\n", QEMU_ARCH_ALL)
|
|
STEXI
|
|
@item -icount [@var{N}|auto]
|
|
@findex -icount
|
|
Enable virtual instruction counter. The virtual cpu will execute one
|
|
instruction every 2^@var{N} ns of virtual time. If @code{auto} is specified
|
|
then the virtual cpu speed will be automatically adjusted to keep virtual
|
|
time within a few seconds of real time.
|
|
|
|
Note that while this option can give deterministic behavior, it does not
|
|
provide cycle accurate emulation. Modern CPUs contain superscalar out of
|
|
order cores with complex cache hierarchies. The number of instructions
|
|
executed often has little or no correlation with actual performance.
|
|
ETEXI
|
|
|
|
DEF("watchdog", HAS_ARG, QEMU_OPTION_watchdog, \
|
|
"-watchdog i6300esb|ib700\n" \
|
|
" enable virtual hardware watchdog [default=none]\n",
|
|
QEMU_ARCH_ALL)
|
|
STEXI
|
|
@item -watchdog @var{model}
|
|
@findex -watchdog
|
|
Create a virtual hardware watchdog device. Once enabled (by a guest
|
|
action), the watchdog must be periodically polled by an agent inside
|
|
the guest or else the guest will be restarted.
|
|
|
|
The @var{model} is the model of hardware watchdog to emulate. Choices
|
|
for model are: @code{ib700} (iBASE 700) which is a very simple ISA
|
|
watchdog with a single timer, or @code{i6300esb} (Intel 6300ESB I/O
|
|
controller hub) which is a much more featureful PCI-based dual-timer
|
|
watchdog. Choose a model for which your guest has drivers.
|
|
|
|
Use @code{-watchdog ?} to list available hardware models. Only one
|
|
watchdog can be enabled for a guest.
|
|
ETEXI
|
|
|
|
DEF("watchdog-action", HAS_ARG, QEMU_OPTION_watchdog_action, \
|
|
"-watchdog-action reset|shutdown|poweroff|pause|debug|none\n" \
|
|
" action when watchdog fires [default=reset]\n",
|
|
QEMU_ARCH_ALL)
|
|
STEXI
|
|
@item -watchdog-action @var{action}
|
|
|
|
The @var{action} controls what QEMU will do when the watchdog timer
|
|
expires.
|
|
The default is
|
|
@code{reset} (forcefully reset the guest).
|
|
Other possible actions are:
|
|
@code{shutdown} (attempt to gracefully shutdown the guest),
|
|
@code{poweroff} (forcefully poweroff the guest),
|
|
@code{pause} (pause the guest),
|
|
@code{debug} (print a debug message and continue), or
|
|
@code{none} (do nothing).
|
|
|
|
Note that the @code{shutdown} action requires that the guest responds
|
|
to ACPI signals, which it may not be able to do in the sort of
|
|
situations where the watchdog would have expired, and thus
|
|
@code{-watchdog-action shutdown} is not recommended for production use.
|
|
|
|
Examples:
|
|
|
|
@table @code
|
|
@item -watchdog i6300esb -watchdog-action pause
|
|
@item -watchdog ib700
|
|
@end table
|
|
ETEXI
|
|
|
|
DEF("echr", HAS_ARG, QEMU_OPTION_echr, \
|
|
"-echr chr set terminal escape character instead of ctrl-a\n",
|
|
QEMU_ARCH_ALL)
|
|
STEXI
|
|
|
|
@item -echr @var{numeric_ascii_value}
|
|
@findex -echr
|
|
Change the escape character used for switching to the monitor when using
|
|
monitor and serial sharing. The default is @code{0x01} when using the
|
|
@code{-nographic} option. @code{0x01} is equal to pressing
|
|
@code{Control-a}. You can select a different character from the ascii
|
|
control keys where 1 through 26 map to Control-a through Control-z. For
|
|
instance you could use the either of the following to change the escape
|
|
character to Control-t.
|
|
@table @code
|
|
@item -echr 0x14
|
|
@item -echr 20
|
|
@end table
|
|
ETEXI
|
|
|
|
DEF("virtioconsole", HAS_ARG, QEMU_OPTION_virtiocon, \
|
|
"-virtioconsole c\n" \
|
|
" set virtio console\n", QEMU_ARCH_ALL)
|
|
STEXI
|
|
@item -virtioconsole @var{c}
|
|
@findex -virtioconsole
|
|
Set virtio console.
|
|
|
|
This option is maintained for backward compatibility.
|
|
|
|
Please use @code{-device virtconsole} for the new way of invocation.
|
|
ETEXI
|
|
|
|
DEF("show-cursor", 0, QEMU_OPTION_show_cursor, \
|
|
"-show-cursor show cursor\n", QEMU_ARCH_ALL)
|
|
STEXI
|
|
@item -show-cursor
|
|
@findex -show-cursor
|
|
Show cursor.
|
|
ETEXI
|
|
|
|
DEF("tb-size", HAS_ARG, QEMU_OPTION_tb_size, \
|
|
"-tb-size n set TB size\n", QEMU_ARCH_ALL)
|
|
STEXI
|
|
@item -tb-size @var{n}
|
|
@findex -tb-size
|
|
Set TB size.
|
|
ETEXI
|
|
|
|
DEF("incoming", HAS_ARG, QEMU_OPTION_incoming, \
|
|
"-incoming p prepare for incoming migration, listen on port p\n",
|
|
QEMU_ARCH_ALL)
|
|
STEXI
|
|
@item -incoming @var{port}
|
|
@findex -incoming
|
|
Prepare for incoming migration, listen on @var{port}.
|
|
ETEXI
|
|
|
|
DEF("nodefaults", 0, QEMU_OPTION_nodefaults, \
|
|
"-nodefaults don't create default devices\n", QEMU_ARCH_ALL)
|
|
STEXI
|
|
@item -nodefaults
|
|
@findex -nodefaults
|
|
Don't create default devices.
|
|
ETEXI
|
|
|
|
#ifndef _WIN32
|
|
DEF("chroot", HAS_ARG, QEMU_OPTION_chroot, \
|
|
"-chroot dir chroot to dir just before starting the VM\n",
|
|
QEMU_ARCH_ALL)
|
|
#endif
|
|
STEXI
|
|
@item -chroot @var{dir}
|
|
@findex -chroot
|
|
Immediately before starting guest execution, chroot to the specified
|
|
directory. Especially useful in combination with -runas.
|
|
ETEXI
|
|
|
|
#ifndef _WIN32
|
|
DEF("runas", HAS_ARG, QEMU_OPTION_runas, \
|
|
"-runas user change to user id user just before starting the VM\n",
|
|
QEMU_ARCH_ALL)
|
|
#endif
|
|
STEXI
|
|
@item -runas @var{user}
|
|
@findex -runas
|
|
Immediately before starting guest execution, drop root privileges, switching
|
|
to the specified user.
|
|
ETEXI
|
|
|
|
DEF("prom-env", HAS_ARG, QEMU_OPTION_prom_env,
|
|
"-prom-env variable=value\n"
|
|
" set OpenBIOS nvram variables\n",
|
|
QEMU_ARCH_PPC | QEMU_ARCH_SPARC)
|
|
STEXI
|
|
@item -prom-env @var{variable}=@var{value}
|
|
@findex -prom-env
|
|
Set OpenBIOS nvram @var{variable} to given @var{value} (PPC, SPARC only).
|
|
ETEXI
|
|
DEF("semihosting", 0, QEMU_OPTION_semihosting,
|
|
"-semihosting semihosting mode\n", QEMU_ARCH_ARM | QEMU_ARCH_M68K)
|
|
STEXI
|
|
@item -semihosting
|
|
@findex -semihosting
|
|
Semihosting mode (ARM, M68K only).
|
|
ETEXI
|
|
DEF("old-param", 0, QEMU_OPTION_old_param,
|
|
"-old-param old param mode\n", QEMU_ARCH_ARM)
|
|
STEXI
|
|
@item -old-param
|
|
@findex -old-param (ARM)
|
|
Old param mode (ARM only).
|
|
ETEXI
|
|
|
|
DEF("readconfig", HAS_ARG, QEMU_OPTION_readconfig,
|
|
"-readconfig <file>\n", QEMU_ARCH_ALL)
|
|
STEXI
|
|
@item -readconfig @var{file}
|
|
@findex -readconfig
|
|
Read device configuration from @var{file}.
|
|
ETEXI
|
|
DEF("writeconfig", HAS_ARG, QEMU_OPTION_writeconfig,
|
|
"-writeconfig <file>\n"
|
|
" read/write config file\n", QEMU_ARCH_ALL)
|
|
STEXI
|
|
@item -writeconfig @var{file}
|
|
@findex -writeconfig
|
|
Write device configuration to @var{file}.
|
|
ETEXI
|
|
DEF("nodefconfig", 0, QEMU_OPTION_nodefconfig,
|
|
"-nodefconfig\n"
|
|
" do not load default config files at startup\n",
|
|
QEMU_ARCH_ALL)
|
|
STEXI
|
|
@item -nodefconfig
|
|
@findex -nodefconfig
|
|
Normally QEMU loads a configuration file from @var{sysconfdir}/qemu.conf and
|
|
@var{sysconfdir}/target-@var{ARCH}.conf on startup. The @code{-nodefconfig}
|
|
option will prevent QEMU from loading these configuration files at startup.
|
|
ETEXI
|
|
#ifdef CONFIG_SIMPLE_TRACE
|
|
DEF("trace", HAS_ARG, QEMU_OPTION_trace,
|
|
"-trace\n"
|
|
" Specify a trace file to log traces to\n",
|
|
QEMU_ARCH_ALL)
|
|
STEXI
|
|
@item -trace
|
|
@findex -trace
|
|
Specify a trace file to log output traces to.
|
|
ETEXI
|
|
#endif
|
|
|
|
HXCOMM This is the last statement. Insert new options before this line!
|
|
STEXI
|
|
@end table
|
|
ETEXI
|