QEMU-GA - Online Linux Manual PageSection : 8
Updated : Jan 31, 2023
Source : 7.2.0
Note : QEMU
NAMEqemu-ga − QEMU Guest Agent
SYNOPSISqemu−ga [OPTIONS]
DESCRIPTIONThe 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 /etc/qemu/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 −m, −−method=METHOD  Transport method: one of unix−listen, virtio−serial, or isa−serial, or vsock−listen (virtio−serial is the default). −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). Socket addresses for vsock−listen are written as <cid>:<port>​. −l, −−logfile=PATH  Set log file path (default is stderr). −f, −−pidfile=PATH  Specify pid file (default is /var/run/qemu−ga.pid). −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 /etc/qemu/fsfreeze−hook). If using −F with an argument, do not follow −F with a space (for example: −F/var/run/fsfreezehook.sh). −t, −−statedir=PATH  Specify the directory to store state information (absolute paths only, default is /var/run). −v, −−verbose  Log extra debugging information. −V, −−version  Print version information and exit. −d, −−daemon  Daemonize after startup (detach from terminal). −b, −−block−rpcs=LIST  Comma−separated list of RPCs to disable (no spaces, use help to list available RPCs). −D, −−dump−conf  Dump the configuration in a format compatible with qemu−ga.conf and exit. −h, −−help  Display this help and exit.
FILESThe 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 block−rpcs string list
SEE ALSOqemu(1)
AUTHORMichael Roth <mdroth@linux.vnet.ibm.com>
COPYRIGHT2023, The QEMU Project Developers 0
Johanes Gumabo
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