" dea-key-wrap=on|off controls support for DEA key wrapping (default=on)\n"
" suppress-vmdesc=on|off disables self-describing migration (default=off)\n"
" nvdimm=on|off controls NVDIMM support (default=off)\n"
- " enforce-config-section=on|off enforce configuration section migration (default=off)\n"
" memory-encryption=@var{} memory encryption object to use (default=none)\n"
" hmat=on|off controls ACPI HMAT support (default=off)\n",
QEMU_ARCH_ALL)
``nvdimm=on|off``
Enables or disables NVDIMM support. The default is off.
- ``enforce-config-section=on|off``
- If ``enforce-config-section`` is set to on, force migration code
- to send configuration section even if the machine-type sets the
- ``migration.send-configuration`` property to off. NOTE: this
- parameter is deprecated. Please use ``-global``
- ``migration.send-configuration``\ =on\|off instead.
-
``memory-encryption=``
Memory encryption object to use. The default is none.
``-fda file``
\
``-fdb file``
- Use file as floppy disk 0/1 image (see
- :ref:`disk_005fimages`).
+ Use file as floppy disk 0/1 image (see the :ref:`disk images` chapter in
+ the System Emulation Users Guide).
ERST
DEF("hda", HAS_ARG, QEMU_OPTION_hda,
``-hdc file``
\
``-hdd file``
- Use file as hard disk 0, 1, 2 or 3 image (see
- :ref:`disk_005fimages`).
+ Use file as hard disk 0, 1, 2 or 3 image (see the :ref:`disk images`
+ chapter in the System Emulation Users Guide).
ERST
DEF("cdrom", HAS_ARG, QEMU_OPTION_cdrom,
The path to the image file in the local filesystem
``aio``
- Specifies the AIO backend (threads/native, default: threads)
+ Specifies the AIO backend (threads/native/io_uring,
+ default: threads)
``locking``
Specifies whether the image file is protected with Linux OFD
"-drive [file=file][,if=type][,bus=n][,unit=m][,media=d][,index=i]\n"
" [,cache=writethrough|writeback|none|directsync|unsafe][,format=f]\n"
" [,snapshot=on|off][,rerror=ignore|stop|report]\n"
- " [,werror=ignore|stop|report|enospc][,id=name][,aio=threads|native]\n"
+ " [,werror=ignore|stop|report|enospc][,id=name]\n"
+ " [,aio=threads|native|io_uring]\n"
" [,readonly=on|off][,copy-on-read=on|off]\n"
" [,discard=ignore|unmap][,detect-zeroes=on|off|unmap]\n"
" [[,bps=b]|[[,bps_rd=r][,bps_wr=w]]]\n"
In addition, it knows the following options:
``file=file``
- This option defines which disk image (see
- :ref:`disk_005fimages`) to use with this drive. If
- the filename contains comma, you must double it (for instance,
+ This option defines which disk image (see the :ref:`disk images`
+ chapter in the System Emulation Users Guide) to use with this drive.
+ If the filename contains comma, you must double it (for instance,
"file=my,,file" to use file "my,file").
Special files such as iSCSI devices can be specified using
The default mode is ``cache=writeback``.
``aio=aio``
- aio is "threads", or "native" and selects between pthread based
- disk I/O and native Linux AIO.
+ aio is "threads", "native", or "io_uring" and selects between pthread
+ based disk I/O, native Linux AIO, or Linux io_uring API.
``format=format``
Specify which disk format will be used rather than detecting the
``-snapshot``
Write to temporary files instead of disk image files. In this case,
the raw disk image you use is not written back. You can however
- force the write back by pressing C-a s (see
- :ref:`disk_005fimages`).
+ force the write back by pressing C-a s (see the :ref:`disk images`
+ chapter in the System Emulation Users Guide).
ERST
DEF("fsdev", HAS_ARG, QEMU_OPTION_fsdev,
"-fsdev local,id=id,path=path,security_model=mapped-xattr|mapped-file|passthrough|none\n"
- " [,writeout=immediate][,readonly][,fmode=fmode][,dmode=dmode]\n"
+ " [,writeout=immediate][,readonly=on][,fmode=fmode][,dmode=dmode]\n"
" [[,throttling.bps-total=b]|[[,throttling.bps-read=r][,throttling.bps-write=w]]]\n"
" [[,throttling.iops-total=i]|[[,throttling.iops-read=r][,throttling.iops-write=w]]]\n"
" [[,throttling.bps-total-max=bm]|[[,throttling.bps-read-max=rm][,throttling.bps-write-max=wm]]]\n"
" [[,throttling.iops-total-max=im]|[[,throttling.iops-read-max=irm][,throttling.iops-write-max=iwm]]]\n"
" [[,throttling.iops-size=is]]\n"
- "-fsdev proxy,id=id,socket=socket[,writeout=immediate][,readonly]\n"
- "-fsdev proxy,id=id,sock_fd=sock_fd[,writeout=immediate][,readonly]\n"
+ "-fsdev proxy,id=id,socket=socket[,writeout=immediate][,readonly=on]\n"
+ "-fsdev proxy,id=id,sock_fd=sock_fd[,writeout=immediate][,readonly=on]\n"
"-fsdev synth,id=id\n",
QEMU_ARCH_ALL)
SRST
-``-fsdev local,id=id,path=path,security_model=security_model [,writeout=writeout][,readonly][,fmode=fmode][,dmode=dmode] [,throttling.option=value[,throttling.option=value[,...]]]``
+``-fsdev local,id=id,path=path,security_model=security_model [,writeout=writeout][,readonly=on][,fmode=fmode][,dmode=dmode] [,throttling.option=value[,throttling.option=value[,...]]]``
\
-``-fsdev proxy,id=id,socket=socket[,writeout=writeout][,readonly]``
+``-fsdev proxy,id=id,socket=socket[,writeout=writeout][,readonly=on]``
\
-``-fsdev proxy,id=id,sock_fd=sock_fd[,writeout=writeout][,readonly]``
+``-fsdev proxy,id=id,sock_fd=sock_fd[,writeout=writeout][,readonly=on]``
\
-``-fsdev synth,id=id[,readonly]``
+``-fsdev synth,id=id[,readonly=on]``
Define a new file system device. Valid options are:
``local``
guest only when the data has been reported as written by the
storage subsystem.
- ``readonly``
+ ``readonly=on``
Enables exporting 9p share as a readonly mount for guests. By
default read-write access is given.
DEF("virtfs", HAS_ARG, QEMU_OPTION_virtfs,
"-virtfs local,path=path,mount_tag=tag,security_model=mapped-xattr|mapped-file|passthrough|none\n"
- " [,id=id][,writeout=immediate][,readonly][,fmode=fmode][,dmode=dmode][,multidevs=remap|forbid|warn]\n"
- "-virtfs proxy,mount_tag=tag,socket=socket[,id=id][,writeout=immediate][,readonly]\n"
- "-virtfs proxy,mount_tag=tag,sock_fd=sock_fd[,id=id][,writeout=immediate][,readonly]\n"
- "-virtfs synth,mount_tag=tag[,id=id][,readonly]\n",
+ " [,id=id][,writeout=immediate][,readonly=on][,fmode=fmode][,dmode=dmode][,multidevs=remap|forbid|warn]\n"
+ "-virtfs proxy,mount_tag=tag,socket=socket[,id=id][,writeout=immediate][,readonly=on]\n"
+ "-virtfs proxy,mount_tag=tag,sock_fd=sock_fd[,id=id][,writeout=immediate][,readonly=on]\n"
+ "-virtfs synth,mount_tag=tag[,id=id][,readonly=on]\n",
QEMU_ARCH_ALL)
SRST
-``-virtfs local,path=path,mount_tag=mount_tag ,security_model=security_model[,writeout=writeout][,readonly] [,fmode=fmode][,dmode=dmode][,multidevs=multidevs]``
+``-virtfs local,path=path,mount_tag=mount_tag ,security_model=security_model[,writeout=writeout][,readonly=on] [,fmode=fmode][,dmode=dmode][,multidevs=multidevs]``
\
-``-virtfs proxy,socket=socket,mount_tag=mount_tag [,writeout=writeout][,readonly]``
+``-virtfs proxy,socket=socket,mount_tag=mount_tag [,writeout=writeout][,readonly=on]``
\
-``-virtfs proxy,sock_fd=sock_fd,mount_tag=mount_tag [,writeout=writeout][,readonly]``
+``-virtfs proxy,sock_fd=sock_fd,mount_tag=mount_tag [,writeout=writeout][,readonly=on]``
\
``-virtfs synth,mount_tag=mount_tag``
Define a new virtual filesystem device and expose it to the guest using
guest only when the data has been reported as written by the
storage subsystem.
- ``readonly``
+ ``readonly=on``
Enables exporting 9p share as a readonly mount for guests. By
default read-write access is given.
SRST
``-usbdevice devname``
Add the USB device devname. Note that this option is deprecated,
- please use ``-device usb-...`` instead. See
- :ref:`usb_005fdevices`.
+ please use ``-device usb-...`` instead. See the chapter about
+ :ref:`Connecting USB devices` in the System Emulation Users Guide.
``mouse``
Virtual Mouse. This will override the PS/2 mouse emulation when
connections.
The password must be set separately using the ``set_password``
- command in the :ref:`pcsys_005fmonitor`. The
+ command in the :ref:`QEMU monitor`. The
syntax to change your password is:
``set_password <protocol> <password>`` where <protocol> could be
either "vnc" or "spice".
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_005fsecurity` section for details on
- using SASL authentication.
+ :ref:`VNC security` section in the System Emulation Users Guide
+ for details on using SASL authentication.
``sasl-authz=ID``
Provides the ID of the QAuthZ authorization object against which
-serial chardev:char1
When you're using a multiplexed character device, some escape
- sequences are interpreted in the input. See :ref:`mux_005fkeys`.
+ sequences are interpreted in the input. See the chapter about
+ :ref:`keys in the character backend multiplexer` in the
+ System Emulation Users Guide for more details.
Note that some other command line options may implicitly create
multiplexed character backends; for instance ``-serial mon:stdio``
QEMU_ARCH_ALL)
SRST
``-gdb dev``
- Accept a gdb connection on device dev (see
- :ref:`gdb_005fusage`). Note that this option does not pause QEMU
+ Accept a gdb connection on device dev (see the :ref:`GDB usage` chapter
+ in the System Emulation Users Guide). Note that this option does not pause QEMU
execution -- if you want QEMU to not start the guest until you
connect with gdb and issue a ``continue`` command, you will need to
also pass the ``-S`` option to QEMU.
SRST
``-s``
Shorthand for -gdb tcp::1234, i.e. open a gdbserver on TCP port 1234
- (see :ref:`gdb_005fusage`).
+ (see the :ref:`GDB usage` chapter in the System Emulation Users Guide).
ERST
DEF("d", HAS_ARG, QEMU_OPTION_d, \
Enable FIPS 140-2 compliance mode.
ERST
-HXCOMM Deprecated by -accel tcg
-DEF("no-kvm", 0, QEMU_OPTION_no_kvm, "", QEMU_ARCH_I386)
-
DEF("msg", HAS_ARG, QEMU_OPTION_msg,
"-msg [timestamp[=on|off]][,guest-name=[on|off]]\n"
" control error message format\n"
projects / mirror_qemu.git / blobdiff