Archipelago » qemu

@table @option

@item help or ? [@var{cmd}]

Show the help for all commands or just for command @var{cmd}.

@item commit

Commit changes to the disk images (if -snapshot is used).

@item info @var{subcommand}

Show various information about the system state.

@table @option

@item info version

show the version of QEMU

@item info network

show the various VLANs and the associated devices

@item info chardev

show the character devices

@item info block

show the block devices

@item info block

show block device statistics

@item info registers

show the cpu registers

@item info cpus

show infos for each CPU

@item info history

show the command line history

@item info irq

show the interrupts statistics (if available)

@item info pic

show i8259 (PIC) state

@item info pci

show emulated PCI device info

@item info tlb

show virtual to physical memory mappings (i386 only)

@item info mem

show the active virtual memory mappings (i386 only)

@item info hpet

show state of HPET (i386 only)

@item info kqemu

show KQEMU information

@item info kvm

show KVM information

@item info usb

show USB devices plugged on the virtual USB hub

@item info usbhost

show all USB host devices

@item info profile

show profiling information

@item info capture

show information about active capturing

@item info snapshots

show list of VM snapshots

@item info status

show the current VM status (running|paused)

@item info pcmcia

show guest PCMCIA status

@item info mice

show which guest mouse is receiving events

@item info vnc

show the vnc server status

@item info name

show the current VM name

@item info uuid

show the current VM UUID

@item info cpustats

show CPU statistics

@item info slirp

show SLIRP statistics (if available)

@item info migrate

show migration status

@item info balloon

show balloon information

@end table

@item q or quit

Quit the emulator.

@item eject [-f] @var{device}

Eject a removable medium (use -f to force it).

@item change @var{device} @var{setting}

Change the configuration of a device.

@table @option

@item change @var{diskdevice} @var{filename} [@var{format}]

Change the medium for a removable disk device to point to @var{filename}. eg

@example

(qemu) change ide1-cd0 /path/to/some.iso

@end example

@var{format} is optional.

@item change vnc @var{display},@var{options}

Change the configuration of the VNC server. The valid syntax for @var{display}

and @var{options} are described at @ref{sec_invocation}. eg

@example

(qemu) change vnc localhost:1

@end example

@item change vnc password [@var{password}]

Change the password associated with the VNC server. If the new password is not

supplied, the monitor will prompt for it to be entered. VNC passwords are only

significant up to 8 letters. eg

@example

(qemu) change vnc password

Password: ********

@end example

@end table

@item acl @var{subcommand} @var{aclname} @var{match} @var{index}

Manage access control lists for network services. There are currently

two named access control lists, @var{vnc.x509dname} and @var{vnc.username}

matching on the x509 client certificate distinguished name, and SASL

username respectively.

@table @option

@item acl show <aclname>

list all the match rules in the access control list, and the default

policy

@item acl policy <aclname> @code{allow|deny}

set the default access control list policy, used in the event that

none of the explicit rules match. The default policy at startup is

always @code{deny}

@item acl allow <aclname> <match> [<index>]

add a match to the access control list, allowing access. The match will

normally be an exact username or x509 distinguished name, but can

optionally include wildcard globs. eg @code{*@@EXAMPLE.COM} to allow

all users in the @code{EXAMPLE.COM} kerberos realm. The match will

normally be appended to the end of the ACL, but can be inserted

earlier in the list if the optional @code{index} parameter is supplied.

@item acl deny <aclname> <match> [<index>]

add a match to the access control list, denying access. The match will

normally be an exact username or x509 distinguished name, but can

optionally include wildcard globs. eg @code{*@@EXAMPLE.COM} to allow

all users in the @code{EXAMPLE.COM} kerberos realm. The match will

normally be appended to the end of the ACL, but can be inserted

earlier in the list if the optional @code{index} parameter is supplied.

@item acl remove <aclname> <match>

remove the specified match rule from the access control list.

@item acl reset <aclname>

remove all matches from the access control list, and set the default

policy back to @code{deny}.

@end table

@item screendump @var{filename}

Save screen into PPM image @var{filename}.

@item logfile @var{filename}

Output logs to @var{filename}.

@item log @var{item1}[,...]

Activate logging of the specified items to @file{/tmp/qemu.log}.

@item savevm [@var{tag}|@var{id}]

Create a snapshot of the whole virtual machine. If @var{tag} is

provided, it is used as human readable identifier. If there is already

a snapshot with the same tag or ID, it is replaced. More info at

@ref{vm_snapshots}.

@item loadvm @var{tag}|@var{id}

Set the whole virtual machine to the snapshot identified by the tag

@var{tag} or the unique snapshot ID @var{id}.

@item delvm @var{tag}|@var{id}

Delete the snapshot identified by @var{tag} or @var{id}.

@item singlestep [off]

Run the emulation in single step mode.

If called with option off, the emulation returns to normal mode.

@item stop

Stop emulation.

@item c or cont

Resume emulation.

@item gdbserver [@var{port}]

Start gdbserver session (default @var{port}=1234)

@item x/fmt @var{addr}

Virtual memory dump starting at @var{addr}.

@item xp /@var{fmt} @var{addr}

Physical memory dump starting at @var{addr}.

@var{fmt} is a format which tells the command how to format the

data. Its syntax is: @option{/@{count@}@{format@}@{size@}}

@table @var

@item count

is the number of items to be dumped.

@item format

can be x (hex), d (signed decimal), u (unsigned decimal), o (octal),

c (char) or i (asm instruction).

@item size

can be b (8 bits), h (16 bits), w (32 bits) or g (64 bits). On x86,

@code{h} or @code{w} can be specified with the @code{i} format to

respectively select 16 or 32 bit code instruction size.

@end table

Examples:

@itemize

@item

Dump 10 instructions at the current instruction pointer:

@example

(qemu) x/10i $eip

0x90107063:  ret

0x90107064:  sti

0x90107065:  lea    0x0(%esi,1),%esi

0x90107069:  lea    0x0(%edi,1),%edi

0x90107070:  ret

0x90107071:  jmp    0x90107080

0x90107073:  nop

0x90107074:  nop

0x90107075:  nop

0x90107076:  nop

@end example

@item

Dump 80 16 bit values at the start of the video memory.

@smallexample

(qemu) xp/80hx 0xb8000

0x000b8000: 0x0b50 0x0b6c 0x0b65 0x0b78 0x0b38 0x0b36 0x0b2f 0x0b42

0x000b8010: 0x0b6f 0x0b63 0x0b68 0x0b73 0x0b20 0x0b56 0x0b47 0x0b41

0x000b8020: 0x0b42 0x0b69 0x0b6f 0x0b73 0x0b20 0x0b63 0x0b75 0x0b72

0x000b8030: 0x0b72 0x0b65 0x0b6e 0x0b74 0x0b2d 0x0b63 0x0b76 0x0b73

0x000b8040: 0x0b20 0x0b30 0x0b35 0x0b20 0x0b4e 0x0b6f 0x0b76 0x0b20

0x000b8050: 0x0b32 0x0b30 0x0b30 0x0b33 0x0720 0x0720 0x0720 0x0720

0x000b8060: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720

0x000b8070: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720

0x000b8080: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720

0x000b8090: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720

@end smallexample

@end itemize

@item p or print/@var{fmt} @var{expr}

Print expression value. Only the @var{format} part of @var{fmt} is

used.

@item sendkey @var{keys}

Send @var{keys} to the emulator. @var{keys} could be the name of the

key or @code{#} followed by the raw value in either decimal or hexadecimal

format. Use @code{-} to press several keys simultaneously. Example:

@example

sendkey ctrl-alt-f1

@end example

This command is useful to send keys that your graphical user interface

intercepts at low level, such as @code{ctrl-alt-f1} in X Window.

@item system_reset

Reset the system.

@item system_powerdown

Power down the system (if supported).

@item sum @var{addr} @var{size}

Compute the checksum of a memory region.

@item usb_add @var{devname}

Add the USB device @var{devname}.  For details of available devices see

@ref{usb_devices}

@item usb_del @var{devname}

Remove the USB device @var{devname} from the QEMU virtual USB

hub. @var{devname} has the syntax @code{bus.addr}. Use the monitor

command @code{info usb} to see the devices you can remove.

@item mouse_move @var{dx} @var{dy} [@var{dz}]

Move the active mouse to the specified coordinates @var{dx} @var{dy}

with optional scroll axis @var{dz}.

@item mouse_button @var{val}

Change the active mouse button state @var{val} (1=L, 2=M, 4=R).

@item mouse_set @var{index}

Set which mouse device receives events at given @var{index}, index

can be obtained with

@example

info mice

@end example

@item wavcapture @var{filename} [@var{frequency} [@var{bits} [@var{channels}]]]

Capture audio into @var{filename}. Using sample rate @var{frequency}

bits per sample @var{bits} and number of channels @var{channels}.

Defaults:

@itemize @minus

@item Sample rate = 44100 Hz - CD quality

@item Bits = 16

@item Number of channels = 2 - Stereo

@end itemize

@item stopcapture @var{index}

Stop capture with a given @var{index}, index can be obtained with

@example

info capture

@end example

@item memsave @var{addr} @var{size} @var{file}

save to disk virtual memory dump starting at @var{addr} of size @var{size}.

@item pmemsave @var{addr} @var{size} @var{file}

save to disk physical memory dump starting at @var{addr} of size @var{size}.

@item boot_set @var{bootdevicelist}

Define new values for the boot device list. Those values will override

the values specified on the command line through the @code{-boot} option.

The values that can be specified here depend on the machine type, but are

the same that can be specified in the @code{-boot} command line option.

@item nmi @var{cpu}

Inject an NMI on the given CPU.

@item migrate [-d] @var{uri}

Migrate to @var{uri} (using -d to not wait for completion).

@item migrate_cancel

Cancel the current VM migration.

@item migrate_set_speed @var{value}

Set maximum speed to @var{value} (in bytes) for migrations.

@item balloon @var{value}

Request VM to change its memory allocation to @var{value} (in MB).

@item set_link @var{name} [up|down]

Set link @var{name} up or down.

@end table