" kernel_irqchip=on|off controls accelerated irqchip support\n"
" kernel_irqchip=on|off|split controls accelerated irqchip support (default=off)\n"
" vmport=on|off|auto controls emulation of vmport (default: auto)\n"
- " kvm_shadow_mem=size of KVM shadow MMU\n"
+ " kvm_shadow_mem=size of KVM shadow MMU in bytes\n"
" dump-guest-core=on|off include guest memory in a core dump (default=on)\n"
" mem-merge=on|off controls memory merge support (default: on)\n"
- " iommu=on|off controls emulated Intel IOMMU (VT-d) support (default=off)\n"
" igd-passthru=on|off controls IGD GFX passthrough support (default=off)\n"
" aes-key-wrap=on|off controls support for AES key wrapping (default=on)\n"
" dea-key-wrap=on|off controls support for DEA key wrapping (default=on)\n"
Enables or disables memory merge support. This feature, when supported by
the host, de-duplicates identical memory pages among VMs instances
(enabled by default).
-@item iommu=on|off
-Enables or disables emulated Intel IOMMU (VT-d) support. The default is off.
@item aes-key-wrap=on|off
Enables or disables AES key wrapping support on s390-ccw hosts. This feature
controls whether AES wrapping keys will be created to allow
@var{discard} is one of "ignore" (or "off") or "unmap" (or "on") and controls whether @dfn{discard} (also known as @dfn{trim} or @dfn{unmap}) requests are ignored or passed to the filesystem. Some machine types may not support discard requests.
@item format=@var{format}
Specify which disk @var{format} will be used rather than detecting
-the format. Can be used to specifiy format=raw to avoid interpreting
+the format. Can be used to specify format=raw to avoid interpreting
an untrusted format header.
@item serial=@var{serial}
This option specifies the serial number to assign to the device.
@item 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
+will be used rather than detecting the format. Can be used to specify
@code{format=raw} to avoid interpreting an untrusted format header.
@item host:@var{bus}.@var{addr}
DEF("display", HAS_ARG, QEMU_OPTION_display,
"-display sdl[,frame=on|off][,alt_grab=on|off][,ctrl_grab=on|off]\n"
- " [,window_close=on|off]|curses|none|\n"
- " gtk[,grab_on_hover=on|off]|\n"
- " vnc=<display>[,<optargs>]\n"
- " select display type\n", QEMU_ARCH_ALL)
+ " [,window_close=on|off][,gl=on|off]|curses|none|\n"
+ "-display gtk[,grab_on_hover=on|off][,gl=on|off]|\n"
+ "-display vnc=<display>[,<optargs>]\n"
+ "-display curses\n"
+ "-display none"
+ " select display type\n"
+ "The default display is equivalent to\n"
+#if defined(CONFIG_GTK)
+ "\t\"-display gtk\"\n"
+#elif defined(CONFIG_SDL)
+ "\t\"-display sdl\"\n"
+#elif defined(CONFIG_COCOA)
+ "\t\"-display cocoa\"\n"
+#elif defined(CONFIG_VNC)
+ "\t\"-vnc localhost:0,to=99,id=default\"\n"
+#else
+ "\t\"-display none\"\n"
+#endif
+ , QEMU_ARCH_ALL)
STEXI
@item -display @var{type}
@findex -display
ETEXI
DEF("curses", 0, QEMU_OPTION_curses,
- "-curses use a curses/ncurses interface instead of SDL\n",
+ "-curses shorthand for -display curses\n",
QEMU_ARCH_ALL)
STEXI
@item -curses
ETEXI
DEF("sdl", 0, QEMU_OPTION_sdl,
- "-sdl enable SDL\n", QEMU_ARCH_ALL)
+ "-sdl shorthand for -display sdl\n", QEMU_ARCH_ALL)
STEXI
@item -sdl
@findex -sdl
Set the initial graphical resolution and depth (PPC, SPARC only).
ETEXI
-DEF("input-linux", 1, QEMU_OPTION_input_linux,
- "-input-linux <evdev>\n"
- " Use input device.\n", QEMU_ARCH_ALL)
-STEXI
-@item -input-linux @var{dev}
-@findex -input-linux
-Use input device.
-ETEXI
-
DEF("vnc", HAS_ARG, QEMU_OPTION_vnc ,
- "-vnc display start a VNC server on display\n", QEMU_ARCH_ALL)
+ "-vnc <display> shorthand for -display vnc=<display>\n", QEMU_ARCH_ALL)
STEXI
@item -vnc @var{display}[,@var{option}[,@var{option}[,...]]]
@findex -vnc
@table @option
+@item to=@var{L}
+
+With this option, QEMU will try next available VNC @var{display}s, until the
+number @var{L}, if the origianlly defined "-vnc @var{display}" is not
+available, e.g. port 5900+@var{display} is already used by another
+application. By default, to=0.
+
@item @var{host}:@var{d}
TCP connections will only be allowed from @var{host} on display @var{d}.
allows everybody connect unconditionally. Doesn't conform to the rfb
spec but is traditional QEMU behavior.
+@item key-delay-ms
+
+Set keyboard delay, for key down and key up events, in milliseconds.
+Default is 1. Keyboards are low-bandwidth devices, so this slowdown
+can help the device and guest to keep up and not lose events in case
+events are arriving in bulk. Possible causes for the latter are flaky
+network connections, or scripts for automated testing.
+
@end table
ETEXI
DEF("netdev", HAS_ARG, QEMU_OPTION_netdev,
#ifdef CONFIG_SLIRP
- "-netdev user,id=str[,net=addr[/mask]][,host=addr][,ip6-net=addr[/int]]\n"
- " [,ip6-host=addr][,restrict=on|off][,hostname=host][,dhcpstart=addr]\n"
- " [,dns=addr][,ip6-dns=addr][,dnssearch=domain][,tftp=dir]\n"
+ "-netdev user,id=str[,ipv4[=on|off]][,net=addr[/mask]][,host=addr]\n"
+ " [,ipv6[=on|off]][,ipv6-net=addr[/int]][,ipv6-host=addr]\n"
+ " [,restrict=on|off][,hostname=host][,dhcpstart=addr]\n"
+ " [,dns=addr][,ipv6-dns=addr][,dnssearch=domain][,tftp=dir]\n"
" [,bootfile=f][,hostfwd=rule][,guestfwd=rule]"
#ifndef _WIN32
"[,smb=dir[,smbserver=addr]]\n"
"-netdev tap,id=str[,fd=h][,fds=x:y:...:z][,ifname=name][,script=file][,downscript=dfile]\n"
" [,helper=helper][,sndbuf=nbytes][,vnet_hdr=on|off][,vhost=on|off]\n"
" [,vhostfd=h][,vhostfds=x:y:...:z][,vhostforce=on|off][,queues=n]\n"
+ " [,poll-us=n]\n"
" configure a host TAP network backend with ID 'str'\n"
" use network scripts 'file' (default=" DEFAULT_NETWORK_SCRIPT ")\n"
" to configure it and 'dfile' (default=" DEFAULT_NETWORK_DOWN_SCRIPT ")\n"
" use 'vhostfd=h' to connect to an already opened vhost net device\n"
" use 'vhostfds=x:y:...:z to connect to multiple already opened vhost net devices\n"
" use 'queues=n' to specify the number of queues to be created for multiqueue TAP\n"
+ " use 'poll-us=n' to speciy the maximum number of microseconds that could be\n"
+ " spent on busy polling for vhost net\n"
"-netdev bridge,id=str[,br=bridge][,helper=helper]\n"
" configure a host TAP network backend with ID 'str' that is\n"
" connected to a bridge (default=" DEFAULT_BRIDGE_INTERFACE ")\n"
@itemx name=@var{name}
Assign symbolic name for use in monitor commands.
+@option{ipv4} and @option{ipv6} specify that either IPv4 or IPv6 must
+be enabled. If neither is specified both protocols are enabled.
+
@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
Specify the guest-visible address of the host. Default is the 2nd IP in the
guest network, i.e. x.x.x.2.
-@item ip6-net=@var{addr}[/@var{int}]
-Set IPv6 network address the guest will see. Optionally specify the prefix
-size, as number of valid top-most bits. Default is fec0::/64.
+@item ipv6-net=@var{addr}[/@var{int}]
+Set IPv6 network address the guest will see (default is fec0::/64). The
+network prefix is given in the usual hexadecimal IPv6 address
+notation. The prefix size is optional, and is given as the number of
+valid top-most bits (default is 64).
-@item ip6-host=@var{addr}
+@item ipv6-host=@var{addr}
Specify the guest-visible IPv6 address of the host. Default is the 2nd IPv6 in
the guest network, i.e. xxxx::2.
be different from the host address. Default is the 3rd IP in the guest network,
i.e. x.x.x.3.
-@item ip6-dns=@var{addr}
+@item ipv6-dns=@var{addr}
Specify the guest-visible address of the IPv6 virtual nameserver. The address
must be different from the host address. Default is the 3rd IP in the guest
network, i.e. xxxx::3.
DEF("fw_cfg", HAS_ARG, QEMU_OPTION_fwcfg,
"-fw_cfg [name=]<name>,file=<file>\n"
- " add named fw_cfg entry from file\n"
+ " add named fw_cfg entry with contents from file\n"
"-fw_cfg [name=]<name>,string=<str>\n"
- " add named fw_cfg entry from string\n",
+ " add named fw_cfg entry with contents from string\n",
QEMU_ARCH_ALL)
STEXI
+
@item -fw_cfg [name=]@var{name},file=@var{file}
@findex -fw_cfg
-Add named fw_cfg entry from file. @var{name} determines the name of
-the entry in the fw_cfg file directory exposed to the guest.
+Add named fw_cfg entry with contents from file @var{file}.
@item -fw_cfg [name=]@var{name},string=@var{str}
-Add named fw_cfg entry from string.
+Add named fw_cfg entry with contents from string @var{str}.
+
+The terminating NUL character of the contents of @var{str} will not be
+included as part of the fw_cfg item data. To insert contents with
+embedded NUL characters, you have to use the @var{file} parameter.
+
+The fw_cfg entries are passed by QEMU through to the guest.
+
+Example:
+@example
+ -fw_cfg name=opt/com.mycompany/blob,file=./my_blob.bin
+@end example
+creates an fw_cfg entry named opt/com.mycompany/blob with contents
+from ./my_blob.bin.
+
ETEXI
DEF("serial", HAS_ARG, QEMU_OPTION_serial, \
@item -L @var{path}
@findex -L
Set the directory for the BIOS, VGA BIOS and keymaps.
+
+To list all the data directories, use @code{-L help}.
ETEXI
DEF("bios", HAS_ARG, QEMU_OPTION_bios, \
STEXI
HXCOMM This line is not accurate, as some sub-options are backend-specific but
HXCOMM HX does not support conditional compilation of text.
-@item -trace [events=@var{file}][,file=@var{file}]
+@item -trace [[enable=]@var{pattern}][,events=@var{file}][,file=@var{file}]
@findex -trace
-
-Specify tracing options.
-
-@table @option
-@item [enable=]@var{pattern}
-Immediately enable events matching @var{pattern}.
-The file must contain one event name (as listed in the @file{trace-events} file)
-per line; globbing patterns are accepted too. This option is only
-available if QEMU has been compiled with the @var{simple}, @var{stderr}
-or @var{ftrace} tracing backend. To specify multiple events or patterns,
-specify the @option{-trace} option multiple times.
-
-Use @code{-trace help} to print a list of names of trace points.
-
-@item events=@var{file}
-Immediately enable events listed in @var{file}.
-The file must contain one event name (as listed in the @file{trace-events} file)
-per line; globbing patterns are accepted too. This option is only
-available if QEMU has been compiled with the @var{simple}, @var{stderr} or
-@var{ftrace} tracing backend.
-
-@item file=@var{file}
-Log output traces to @var{file}.
-This option is only available if QEMU has been compiled with
-the @var{simple} tracing backend.
-@end table
+@include qemu-option-trace.texi
ETEXI
HXCOMM Internal use
@option{tx}: the filter is attached to the transmit queue of the netdev,
where it will receive packets sent by the netdev.
+@item -object filter-mirror,id=@var{id},netdev=@var{netdevid},outdev=@var{chardevid}[,queue=@var{all|rx|tx}]
+
+filter-mirror on netdev @var{netdevid},mirror net packet to chardev
+@var{chardevid}
+
+@item -object filter-redirector,id=@var{id},netdev=@var{netdevid},indev=@var{chardevid},
+outdev=@var{chardevid}[,queue=@var{all|rx|tx}]
+
+filter-redirector on netdev @var{netdevid},redirect filter's net packet to chardev
+@var{chardevid},and redirect indev's packet to filter.
+Create a filter-redirector we need to differ outdev id from indev id, id can not
+be the same. we can just use indev or outdev, but at least one of indev or outdev
+need to be specified.
+
@item -object filter-dump,id=@var{id},netdev=@var{dev},file=@var{filename}][,maxlen=@var{len}]
Dump the network traffic on netdev @var{dev} to the file specified by
the AES-256 decryption key. This key should be 32-bytes long and be
base64 encoded. The @var{iv} parameter provides the random initialization
vector used for encryption of this particular secret and should be a
-base64 encrypted string of the 32-byte IV.
+base64 encrypted string of the 16-byte IV.
The simplest (insecure) usage is to provide the secret inline
projects / mirror_qemu.git / blobdiff