HXCOMM Use DEFHEADING() to define headings in both help text and texi
HXCOMM Text between STEXI and ETEXI are copied to texi version and
HXCOMM discarded from C version
-HXCOMM DEF(option, HAS_ARG/0, opt_enum, opt_help) is used to construct
-HXCOMM option structures, enums and help message.
+HXCOMM DEF(option, HAS_ARG/0, opt_enum, opt_help, arch_mask) is used to
+HXCOMM construct option structures, enums and help message for specified
+HXCOMM architectures.
HXCOMM HXCOMM can be used for comments, discarded from both texi and C
DEFHEADING(Standard options:)
ETEXI
DEF("help", 0, QEMU_OPTION_h,
- "-h or -help display this help and exit\n")
+ "-h or -help display this help and exit\n", QEMU_ARCH_ALL)
STEXI
@item -h
+@findex -h
Display help and exit
ETEXI
DEF("version", 0, QEMU_OPTION_version,
- "-version display version information and exit\n")
+ "-version display version information and exit\n", QEMU_ARCH_ALL)
STEXI
@item -version
+@findex -version
Display version information and exit
ETEXI
DEF("M", HAS_ARG, QEMU_OPTION_M,
- "-M machine select emulated machine (-M ? for list)\n")
+ "-M machine select emulated machine (-M ? for list)\n", QEMU_ARCH_ALL)
STEXI
@item -M @var{machine}
+@findex -M
Select the emulated @var{machine} (@code{-M ?} for list)
ETEXI
DEF("cpu", HAS_ARG, QEMU_OPTION_cpu,
- "-cpu cpu select CPU (-cpu ? for list)\n")
+ "-cpu cpu select CPU (-cpu ? for list)\n", QEMU_ARCH_ALL)
STEXI
@item -cpu @var{model}
+@findex -cpu
Select CPU model (-cpu ? for list and additional feature selection)
ETEXI
"-smp n[,maxcpus=cpus][,cores=cores][,threads=threads][,sockets=sockets]\n"
" set the number of CPUs to 'n' [default=1]\n"
" maxcpus= maximum number of total cpus, including\n"
- " offline CPUs for hotplug etc.\n"
+ " offline CPUs for hotplug, etc\n"
" cores= number of CPU cores on one socket\n"
" threads= number of threads on one CPU core\n"
- " sockets= number of discrete sockets in the system\n")
+ " sockets= number of discrete sockets in the system\n",
+ QEMU_ARCH_ALL)
STEXI
@item -smp @var{n}[,cores=@var{cores}][,threads=@var{threads}][,sockets=@var{sockets}][,maxcpus=@var{maxcpus}]
+@findex -smp
Simulate an SMP system with @var{n} CPUs. On the PC target, up to 255
CPUs are supported. On Sparc32 target, Linux limits the number of usable CPUs
to 4.
ETEXI
DEF("numa", HAS_ARG, QEMU_OPTION_numa,
- "-numa node[,mem=size][,cpus=cpu[-cpu]][,nodeid=node]\n")
+ "-numa node[,mem=size][,cpus=cpu[-cpu]][,nodeid=node]\n", QEMU_ARCH_ALL)
STEXI
@item -numa @var{opts}
+@findex -numa
Simulate a multi node NUMA system. If mem and cpus are omitted, resources
are split equally.
ETEXI
DEF("fda", HAS_ARG, QEMU_OPTION_fda,
- "-fda/-fdb file use 'file' as floppy disk 0/1 image\n")
-DEF("fdb", HAS_ARG, QEMU_OPTION_fdb, "")
+ "-fda/-fdb file use 'file' as floppy disk 0/1 image\n", QEMU_ARCH_ALL)
+DEF("fdb", HAS_ARG, QEMU_OPTION_fdb, "", QEMU_ARCH_ALL)
STEXI
@item -fda @var{file}
@item -fdb @var{file}
+@findex -fda
+@findex -fdb
Use @var{file} as floppy disk 0/1 image (@pxref{disk_images}). You can
use the host floppy by using @file{/dev/fd0} as filename (@pxref{host_drives}).
ETEXI
DEF("hda", HAS_ARG, QEMU_OPTION_hda,
- "-hda/-hdb file use 'file' as IDE hard disk 0/1 image\n")
-DEF("hdb", HAS_ARG, QEMU_OPTION_hdb, "")
+ "-hda/-hdb file use 'file' as IDE hard disk 0/1 image\n", QEMU_ARCH_ALL)
+DEF("hdb", HAS_ARG, QEMU_OPTION_hdb, "", QEMU_ARCH_ALL)
DEF("hdc", HAS_ARG, QEMU_OPTION_hdc,
- "-hdc/-hdd file use 'file' as IDE hard disk 2/3 image\n")
-DEF("hdd", HAS_ARG, QEMU_OPTION_hdd, "")
+ "-hdc/-hdd file use 'file' as IDE hard disk 2/3 image\n", QEMU_ARCH_ALL)
+DEF("hdd", HAS_ARG, QEMU_OPTION_hdd, "", QEMU_ARCH_ALL)
STEXI
@item -hda @var{file}
@item -hdb @var{file}
@item -hdc @var{file}
@item -hdd @var{file}
+@findex -hda
+@findex -hdb
+@findex -hdc
+@findex -hdd
Use @var{file} as hard disk 0, 1, 2 or 3 image (@pxref{disk_images}).
ETEXI
DEF("cdrom", HAS_ARG, QEMU_OPTION_cdrom,
- "-cdrom file use 'file' as IDE cdrom image (cdrom is ide1 master)\n")
+ "-cdrom file use 'file' as IDE cdrom image (cdrom is ide1 master)\n",
+ QEMU_ARCH_ALL)
STEXI
@item -cdrom @var{file}
+@findex -cdrom
Use @var{file} as CD-ROM image (you cannot use @option{-hdc} and
@option{-cdrom} at the same time). You can use the host CD-ROM by
using @file{/dev/cdrom} as filename (@pxref{host_drives}).
DEF("drive", HAS_ARG, QEMU_OPTION_drive,
"-drive [file=file][,if=type][,bus=n][,unit=m][,media=d][,index=i]\n"
" [,cyls=c,heads=h,secs=s[,trans=t]][,snapshot=on|off]\n"
- " [,cache=writethrough|writeback|none][,format=f][,serial=s]\n"
- " [,addr=A][,id=name][,aio=threads|native]\n"
- " use 'file' as a drive image\n")
-DEF("set", HAS_ARG, QEMU_OPTION_set,
- "-set group.id.arg=value\n"
- " set <arg> parameter for item <id> of type <group>\n"
- " i.e. -set drive.$id.file=/path/to/image\n")
-DEF("global", HAS_ARG, QEMU_OPTION_global,
- "-global driver.property=value\n"
- " set a global default for a driver property\n")
+ " [,cache=writethrough|writeback|none|unsafe][,format=f]\n"
+ " [,serial=s][,addr=A][,id=name][,aio=threads|native]\n"
+ " [,readonly=on|off]\n"
+ " use 'file' as a drive image\n", QEMU_ARCH_ALL)
STEXI
@item -drive @var{option}[,@var{option}[,@var{option}[,...]]]
+@findex -drive
Define a new drive. Valid options are:
@item snapshot=@var{snapshot}
@var{snapshot} is "on" or "off" and allows to enable snapshot for given drive (see @option{-snapshot}).
@item cache=@var{cache}
-@var{cache} is "none", "writeback", or "writethrough" and controls how the host cache is used to access block data.
+@var{cache} is "none", "writeback", "unsafe", or "writethrough" and controls how the host cache is used to access block data.
@item aio=@var{aio}
@var{aio} is "threads", or "native" and selects between pthread based disk I/O and native Linux AIO.
@item format=@var{format}
Writeback caching will report data writes as completed as soon as the data is
present in the host page cache. This is safe as long as you trust your host.
If your host crashes or loses power, then the guest may experience data
-corruption. When using the @option{-snapshot} option, writeback caching is
-used by default.
+corruption.
The host page cache can be avoided entirely with @option{cache=none}. This will
attempt to do disk IO directly to the guests memory. QEMU may still perform
qcow2. If performance is more important than correctness,
@option{cache=writeback} should be used with qcow2.
+In case you don't care about data integrity over host failures, use
+cache=unsafe. This option tells qemu that it never needs to write any data
+to the disk but can instead keeps things in cache. If anything goes wrong,
+like your host losing power, the disk storage getting disconnected accidently,
+etc. you're image will most probably be rendered unusable. When using
+the @option{-snapshot} option, unsafe caching is always used.
+
Instead of @option{-cdrom} you can use:
@example
qemu -drive file=file,index=2,media=cdrom
@end example
ETEXI
-DEF("mtdblock", HAS_ARG, QEMU_OPTION_mtdblock,
- "-mtdblock file use 'file' as on-board Flash memory image\n")
+DEF("set", HAS_ARG, QEMU_OPTION_set,
+ "-set group.id.arg=value\n"
+ " set <arg> parameter for item <id> of type <group>\n"
+ " i.e. -set drive.$id.file=/path/to/image\n", QEMU_ARCH_ALL)
STEXI
+@item -set
+@findex -set
+TODO
+ETEXI
+DEF("global", HAS_ARG, QEMU_OPTION_global,
+ "-global driver.property=value\n"
+ " set a global default for a driver property\n",
+ QEMU_ARCH_ALL)
+STEXI
+@item -global
+@findex -global
+TODO
+ETEXI
+
+DEF("mtdblock", HAS_ARG, QEMU_OPTION_mtdblock,
+ "-mtdblock file use 'file' as on-board Flash memory image\n",
+ QEMU_ARCH_ALL)
+STEXI
@item -mtdblock @var{file}
+@findex -mtdblock
Use @var{file} as on-board Flash memory image.
ETEXI
DEF("sd", HAS_ARG, QEMU_OPTION_sd,
- "-sd file use 'file' as SecureDigital card image\n")
+ "-sd file use 'file' as SecureDigital card image\n", QEMU_ARCH_ALL)
STEXI
@item -sd @var{file}
+@findex -sd
Use @var{file} as SecureDigital card image.
ETEXI
DEF("pflash", HAS_ARG, QEMU_OPTION_pflash,
- "-pflash file use 'file' as a parallel flash image\n")
+ "-pflash file use 'file' as a parallel flash image\n", QEMU_ARCH_ALL)
STEXI
@item -pflash @var{file}
+@findex -pflash
Use @var{file} as a parallel flash image.
ETEXI
DEF("boot", HAS_ARG, QEMU_OPTION_boot,
"-boot [order=drives][,once=drives][,menu=on|off]\n"
- " 'drives': floppy (a), hard disk (c), CD-ROM (d), network (n)\n")
+ " 'drives': floppy (a), hard disk (c), CD-ROM (d), network (n)\n",
+ QEMU_ARCH_ALL)
STEXI
@item -boot [order=@var{drives}][,once=@var{drives}][,menu=on|off]
-
+@findex -boot
Specify boot order @var{drives} as a string of drive letters. Valid
drive letters depend on the target achitecture. The x86 PC uses: a, b
(floppy 1 and 2), c (first hard disk), d (first CD-ROM), n-p (Etherboot
ETEXI
DEF("snapshot", 0, QEMU_OPTION_snapshot,
- "-snapshot write to temporary files instead of disk image files\n")
+ "-snapshot write to temporary files instead of disk image files\n",
+ QEMU_ARCH_ALL)
STEXI
@item -snapshot
+@findex -snapshot
Write to temporary files instead of disk image files. In this case,
the raw disk image you use is not written back. You can however force
the write back by pressing @key{C-a s} (@pxref{disk_images}).
ETEXI
DEF("m", HAS_ARG, QEMU_OPTION_m,
- "-m megs set virtual RAM size to megs MB [default=%d]\n")
+ "-m megs set virtual RAM size to megs MB [default="
+ stringify(DEFAULT_RAM_SIZE) "]\n", QEMU_ARCH_ALL)
STEXI
@item -m @var{megs}
+@findex -m
Set virtual RAM size to @var{megs} megabytes. Default is 128 MiB. Optionally,
a suffix of ``M'' or ``G'' can be used to signify a value in megabytes or
gigabytes respectively.
ETEXI
+DEF("mem-path", HAS_ARG, QEMU_OPTION_mempath,
+ "-mem-path FILE provide backing storage for guest RAM\n", QEMU_ARCH_ALL)
+STEXI
+@item -mem-path @var{path}
+Allocate guest RAM from a temporarily created file in @var{path}.
+ETEXI
+
+#ifdef MAP_POPULATE
+DEF("mem-prealloc", 0, QEMU_OPTION_mem_prealloc,
+ "-mem-prealloc preallocate guest memory (use with -mem-path)\n",
+ QEMU_ARCH_ALL)
+STEXI
+@item -mem-prealloc
+Preallocate memory when using -mem-path.
+ETEXI
+#endif
+
DEF("k", HAS_ARG, QEMU_OPTION_k,
- "-k language use keyboard layout (for example 'fr' for French)\n")
+ "-k language use keyboard layout (for example 'fr' for French)\n",
+ QEMU_ARCH_ALL)
STEXI
@item -k @var{language}
-
+@findex -k
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
keycodes (e.g. on Macs, with some X11 servers or with a VNC
ETEXI
-#ifdef HAS_AUDIO
DEF("audio-help", 0, QEMU_OPTION_audio_help,
- "-audio-help print list of audio drivers and their options\n")
-#endif
+ "-audio-help print list of audio drivers and their options\n",
+ QEMU_ARCH_ALL)
STEXI
@item -audio-help
-
+@findex -audio-help
Will show the audio subsystem help: list of drivers, tunable
parameters.
ETEXI
-#ifdef HAS_AUDIO
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")
-#endif
+ " use -soundhw all to enable all of them\n", QEMU_ARCH_ALL)
STEXI
@item -soundhw @var{card1}[,@var{card2},...] or -soundhw all
-
+@findex -soundhw
Enable audio and selected sound hardware. Use ? to print all
available sound hardware.
ETEXI
DEF("usb", 0, QEMU_OPTION_usb,
- "-usb enable the USB driver (will be the default soon)\n")
+ "-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)
ETEXI
DEF("usbdevice", HAS_ARG, QEMU_OPTION_usbdevice,
- "-usbdevice name add the host or guest USB device 'name'\n")
+ "-usbdevice name add the host or guest USB device 'name'\n",
+ QEMU_ARCH_ALL)
STEXI
@item -usbdevice @var{devname}
+@findex -usbdevice
Add the USB device @var{devname}. @xref{usb_devices}.
@table @option
ETEXI
DEF("device", HAS_ARG, QEMU_OPTION_device,
- "-device driver[,options] add device\n")
+ "-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] set the name of the guest\n"
- " string1 sets the window title and string2 the process name (on Linux)\n")
+ "-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.
ETEXI
DEF("uuid", HAS_ARG, QEMU_OPTION_uuid,
- "-uuid %%08x-%%04x-%%04x-%%04x-%%012x\n"
- " specify machine UUID\n")
+ "-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
ETEXI
DEF("nographic", 0, QEMU_OPTION_nographic,
- "-nographic disable graphical output and redirect serial I/Os to console\n")
+ "-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
#ifdef CONFIG_CURSES
DEF("curses", 0, QEMU_OPTION_curses,
- "-curses use a curses/ncurses interface instead of SDL\n")
+ "-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.
#ifdef CONFIG_SDL
DEF("no-frame", 0, QEMU_OPTION_no_frame,
- "-no-frame open SDL window without a frame and window decorations\n")
+ "-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.
#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")
+ "-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")
+ "-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")
+ "-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")
+ "-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")
+ "-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")
+ " 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
ETEXI
DEF("full-screen", 0, QEMU_OPTION_full_screen,
- "-full-screen start in full screen\n")
+ "-full-screen start in full screen\n", QEMU_ARCH_ALL)
STEXI
@item -full-screen
+@findex -full-screen
Start in full screen.
ETEXI
-#if defined(TARGET_PPC) || defined(TARGET_SPARC)
DEF("g", 1, QEMU_OPTION_g ,
- "-g WxH[xDEPTH] Set the initial graphical resolution and depth\n")
-#endif
+ "-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")
+ "-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
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
DEFHEADING()
-#ifdef TARGET_I386
DEFHEADING(i386 target only:)
-#endif
STEXI
@table @option
ETEXI
-#ifdef TARGET_I386
DEF("win2k-hack", 0, QEMU_OPTION_win2k_hack,
- "-win2k-hack use it when installing Windows 2000 to avoid a disk full bug\n")
-#endif
+ "-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
-#ifdef TARGET_I386
HXCOMM Deprecated by -rtc
-DEF("rtc-td-hack", 0, QEMU_OPTION_rtc_td_hack, "")
-#endif
+DEF("rtc-td-hack", 0, QEMU_OPTION_rtc_td_hack, "", QEMU_ARCH_I386)
-#ifdef TARGET_I386
DEF("no-fd-bootchk", 0, QEMU_OPTION_no_fd_bootchk,
- "-no-fd-bootchk disable boot signature checking for floppy disks\n")
-#endif
+ "-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
-#ifdef TARGET_I386
DEF("no-acpi", 0, QEMU_OPTION_no_acpi,
- "-no-acpi disable ACPI\n")
-#endif
+ "-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
-#ifdef TARGET_I386
DEF("no-hpet", 0, QEMU_OPTION_no_hpet,
- "-no-hpet disable HPET\n")
-#endif
+ "-no-hpet disable HPET\n", QEMU_ARCH_I386)
STEXI
@item -no-hpet
+@findex -no-hpet
Disable HPET support.
ETEXI
-#ifdef TARGET_I386
DEF("balloon", HAS_ARG, QEMU_OPTION_balloon,
"-balloon none disable balloon device\n"
"-balloon virtio[,addr=str]\n"
- " enable virtio balloon device (default)\n")
-#endif
+ " 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
-#ifdef TARGET_I386
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")
-#endif
+ " 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
-#ifdef TARGET_I386
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"
+ " 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")
-#endif
+ " 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}]
+@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
-#ifdef TARGET_I386
DEFHEADING()
-#endif
STEXI
@end table
ETEXI
HXCOMM Legacy slirp options (now moved to -net user):
#ifdef CONFIG_SLIRP
-DEF("tftp", HAS_ARG, QEMU_OPTION_tftp, "")
-DEF("bootp", HAS_ARG, QEMU_OPTION_bootp, "")
-DEF("redir", HAS_ARG, QEMU_OPTION_redir, "")
+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, "")
+DEF("smb", HAS_ARG, QEMU_OPTION_smb, "", QEMU_ARCH_ALL)
#endif
#endif
"-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]\n"
+ "-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=%s)\n"
- " and 'dfile' (default=%s);\n"
- " use '[down]script=no' to disable script execution;\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; use\n"
- " vnet_hdr=on to make the lack of IFF_VNET_HDR support an error condition\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"
#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")
+ "-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
#ifdef CONFIG_VDE
"vde|"
#endif
- "socket],id=str[,option][,option][,...]\n")
+ "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}]
+@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
@example
# on the host
-qemu -net user,hostfwd=tcp:5555::23 [...]
+qemu -net user,hostfwd=tcp::5555-:23 [...]
telnet localhost 5555
@end example
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}]
+@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
-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}]
+@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
-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}]
+@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
/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}]
+@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
DEFHEADING(Character device options:)
DEF("chardev", HAS_ARG, QEMU_OPTION_chardev,
- "-chardev null,id=id\n"
+ "-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] (tcp)\n"
- "-chardev socket,id=id,path=path[,server][,nowait][,telnet] (unix)\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]\n"
- "-chardev msmouse,id=id\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"
- "-chardev file,id=id,path=path\n"
- "-chardev pipe,id=id,path=path\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\n"
- "-chardev serial,id=id,path=path\n"
+ "-chardev console,id=id[,mux=on|off]\n"
+ "-chardev serial,id=id,path=path[,mux=on|off]\n"
#else
- "-chardev pty,id=id\n"
- "-chardev stdio,id=id\n"
+ "-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\n"
+ "-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\n"
+ "-chardev tty,id=id,path=path[,mux=on|off]\n"
#endif
#if defined(__linux__) || defined(__FreeBSD__) || defined(__DragonFly__)
- "-chardev parport,id=id,path=path\n"
+ "-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} [,@var{options}]
-
+@item -chardev @var{backend} ,id=@var{id} [,mux=on|off] [,@var{options}]
+@findex -chardev
Backend is one of:
@option{null},
@option{socket},
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}
@table @option
-@item TCP options: port=@var{host} [,host=@var{host}] [,to=@var{to}] [,ipv4] [,ipv6] [,nodelay]
+@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
@option{pty} is not available on Windows hosts.
-@item -chardev stdio ,id=@var{id}
+@item -chardev stdio ,id=@var{id} [,signal=on|off]
Connect to standard input and standard output of the qemu process.
-@option{stdio} does not take any options. @option{stdio} is not available on
-Windows hosts.
+
+@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}
"-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")
+ " 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
ETEXI
DEF("kernel", HAS_ARG, QEMU_OPTION_kernel, \
- "-kernel bzImage use 'bzImage' as kernel image\n")
+ "-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")
+ "-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")
+ "-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}"
ETEXI
DEF("serial", HAS_ARG, QEMU_OPTION_serial, \
- "-serial dev redirect the serial port to char device 'dev'\n")
+ "-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.
ETEXI
DEF("parallel", HAS_ARG, QEMU_OPTION_parallel, \
- "-parallel dev redirect the parallel port to char device 'dev'\n")
+ "-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
ETEXI
DEF("monitor", HAS_ARG, QEMU_OPTION_monitor, \
- "-monitor dev redirect the monitor to char device 'dev'\n")
+ "-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")
+ "-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")
+ "-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")
+ "-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")
+ "-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")
+ "-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
ETEXI
DEF("s", 0, QEMU_OPTION_s, \
- "-s shorthand for -gdb tcp::%s\n")
+ "-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 %s (use -d ? for a list of log items)\n")
+ "-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")
+ " 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
ETEXI
DEF("L", HAS_ARG, QEMU_OPTION_L, \
- "-L path set the directory for the BIOS, VGA BIOS and keymaps\n")
+ "-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")
+ "-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
-#ifdef CONFIG_KVM
DEF("enable-kvm", 0, QEMU_OPTION_enable_kvm, \
- "-enable-kvm enable KVM full virtualization support\n")
-#endif
+ "-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
-#ifdef CONFIG_XEN
DEF("xen-domid", HAS_ARG, QEMU_OPTION_xen_domid,
- "-xen-domid id specify xen guest domain id\n")
+ "-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")
+ " 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")
-#endif
+ " 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")
+ "-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")
+ "-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.
DEF("loadvm", HAS_ARG, QEMU_OPTION_loadvm, \
"-loadvm [tag|id]\n" \
- " start right away with a saved state (loadvm in monitor)\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")
+ "-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
ETEXI
DEF("option-rom", HAS_ARG, QEMU_OPTION_option_rom, \
- "-option-rom rom load a file, rom, into the option ROM space\n")
+ "-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")
+ " 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, "")
-DEF("startdate", HAS_ARG, QEMU_OPTION_startdate, "")
+DEF("localtime", 0, QEMU_OPTION_localtime, "", QEMU_ARCH_ALL)
+DEF("startdate", HAS_ARG, QEMU_OPTION_startdate, "", QEMU_ARCH_ALL)
-#ifdef TARGET_I386
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\n")
-#else
-DEF("rtc", HAS_ARG, QEMU_OPTION_rtc, \
- "-rtc [base=utc|localtime|date][,clock=host|vm]\n" \
- " set the RTC base and clock\n")
-#endif
+ " 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
DEF("icount", HAS_ARG, QEMU_OPTION_icount, \
"-icount [N|auto]\n" \
" enable virtual instruction counter with 2^N clock ticks per\n" \
- " instruction\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
DEF("watchdog", HAS_ARG, QEMU_OPTION_watchdog, \
"-watchdog i6300esb|ib700\n" \
- " enable virtual hardware watchdog [default=none]\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.
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")
+ " action when watchdog fires [default=reset]\n",
+ QEMU_ARCH_ALL)
STEXI
@item -watchdog-action @var{action}
ETEXI
DEF("echr", HAS_ARG, QEMU_OPTION_echr, \
- "-echr chr set terminal escape character instead of ctrl-a\n")
+ "-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
DEF("virtioconsole", HAS_ARG, QEMU_OPTION_virtiocon, \
"-virtioconsole c\n" \
- " set virtio console\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")
+ "-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")
+ "-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")
+ "-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")
+ "-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")
+ "-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")
+ "-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
-STEXI
-@end table
-ETEXI
-
-#if defined(TARGET_SPARC) || defined(TARGET_PPC)
DEF("prom-env", HAS_ARG, QEMU_OPTION_prom_env,
"-prom-env variable=value\n"
- " set OpenBIOS nvram variables\n")
-#endif
-#if defined(TARGET_ARM) || defined(TARGET_M68K)
+ " 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")
-#endif
-#if defined(TARGET_ARM)
+ "-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")
-#endif
+ "-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")
+ "-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")
+ " 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
projects / qemu.git / blobdiff