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diff --git a/docs/interop/qemu-ga.rst b/docs/interop/qemu-ga.rst new file mode 100644 index 0000000000..1313a4ae1c --- /dev/null +++ b/docs/interop/qemu-ga.rst @@ -0,0 +1,133 @@ +QEMU Guest Agent +================ + +Synopsis +-------- + +**qemu-ga** [*OPTIONS*] + +Description +----------- + +The QEMU Guest Agent is a daemon intended to be run within virtual +machines. It allows the hypervisor host to perform various operations +in the guest, such as: + +- get information from the guest +- set the guest's system time +- read/write a file +- sync and freeze the filesystems +- suspend the guest +- reconfigure guest local processors +- set user's password +- ... + +qemu-ga will read a system configuration file on startup (located at +|CONFDIR|\ ``/qemu-ga.conf`` by default), then parse remaining +configuration options on the command line. For the same key, the last +option wins, but the lists accumulate (see below for configuration +file format). + +Options +------- + +.. program:: qemu-ga + +.. option:: -m, --method=METHOD + + Transport method: one of ``unix-listen``, ``virtio-serial``, or + ``isa-serial`` (``virtio-serial`` is the default). + +.. option:: -p, --path=PATH + + Device/socket path (the default for virtio-serial is + ``/dev/virtio-ports/org.qemu.guest_agent.0``, + the default for isa-serial is ``/dev/ttyS0``) + +.. option:: -l, --logfile=PATH + + Set log file path (default is stderr). + +.. option:: -f, --pidfile=PATH + + Specify pid file (default is ``/var/run/qemu-ga.pid``). + +.. option:: -F, --fsfreeze-hook=PATH + + Enable fsfreeze hook. Accepts an optional argument that specifies + script to run on freeze/thaw. Script will be called with + 'freeze'/'thaw' arguments accordingly (default is + |CONFDIR|\ ``/fsfreeze-hook``). If using -F with an argument, do + not follow -F with a space (for example: + ``-F/var/run/fsfreezehook.sh``). + +.. option:: -t, --statedir=PATH + + Specify the directory to store state information (absolute paths only, + default is ``/var/run``). + +.. option:: -v, --verbose + + Log extra debugging information. + +.. option:: -V, --version + + Print version information and exit. + +.. option:: -d, --daemon + + Daemonize after startup (detach from terminal). + +.. option:: -b, --blacklist=LIST + + Comma-separated list of RPCs to disable (no spaces, ``?`` to list + available RPCs). + +.. option:: -D, --dump-conf + + Dump the configuration in a format compatible with ``qemu-ga.conf`` + and exit. + +.. option:: -h, --help + + Display this help and exit. + +Files +----- + + +The syntax of the ``qemu-ga.conf`` configuration file follows the +Desktop Entry Specification, here is a quick summary: it consists of +groups of key-value pairs, interspersed with comments. + +:: + + # qemu-ga configuration sample + [general] + daemonize = 0 + pidfile = /var/run/qemu-ga.pid + verbose = 0 + method = virtio-serial + path = /dev/virtio-ports/org.qemu.guest_agent.0 + statedir = /var/run + +The list of keys follows the command line options: + +============= =========== +Key Key type +============= =========== +daemon boolean +method string +path string +logfile string +pidfile string +fsfreeze-hook string +statedir string +verbose boolean +blacklist string list +============= =========== + +See also +-------- + +:manpage:`qemu(1)` |