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1 @example
2 @c man begin SYNOPSIS
3 @command{qemu-ga} [@var{OPTIONS}]
4 @c man end
5 @end example
6
7 @c man begin DESCRIPTION
8
9 The QEMU Guest Agent is a daemon intended to be run within virtual
10 machines. It allows the hypervisor host to perform various operations
11 in the guest, such as:
12
13 @itemize
14 @item
15 get information from the guest
16 @item
17 set the guest's system time
18 @item
19 read/write a file
20 @item
21 sync and freeze the filesystems
22 @item
23 suspend the guest
24 @item
25 reconfigure guest local processors
26 @item
27 set user's password
28 @item
29 ...
30 @end itemize
31
32 qemu-ga will read a system configuration file on startup (located at
33 @file{/etc/qemu/qemu-ga.conf} by default), then parse remaining
34 configuration options on the command line. For the same key, the last
35 option wins, but the lists accumulate (see below for configuration
36 file format).
37
38 @c man end
39
40 @c man begin OPTIONS
41 @table @option
42 @item -m, --method=@var{method}
43 Transport method: one of @samp{unix-listen}, @samp{virtio-serial}, or
44 @samp{isa-serial} (@samp{virtio-serial} is the default).
45
46 @item -p, --path=@var{path}
47 Device/socket path (the default for virtio-serial is
48 @samp{/dev/virtio-ports/org.qemu.guest_agent.0},
49 the default for isa-serial is @samp{/dev/ttyS0})
50
51 @item -l, --logfile=@var{path}
52 Set log file path (default is stderr).
53
54 @item -f, --pidfile=@var{path}
55 Specify pid file (default is @samp{/var/run/qemu-ga.pid}).
56
57 @item -F, --fsfreeze-hook=@var{path}
58 Enable fsfreeze hook. Accepts an optional argument that specifies
59 script to run on freeze/thaw. Script will be called with
60 'freeze'/'thaw' arguments accordingly (default is
61 @samp{/etc/qemu/fsfreeze-hook}). If using -F with an argument, do
62 not follow -F with a space (for example:
63 @samp{-F/var/run/fsfreezehook.sh}).
64
65 @item -t, --statedir=@var{path}
66 Specify the directory to store state information (absolute paths only,
67 default is @samp{/var/run}).
68
69 @item -v, --verbose
70 Log extra debugging information.
71
72 @item -V, --version
73 Print version information and exit.
74
75 @item -d, --daemon
76 Daemonize after startup (detach from terminal).
77
78 @item -b, --blacklist=@var{list}
79 Comma-separated list of RPCs to disable (no spaces, @samp{?} to list
80 available RPCs).
81
82 @item -D, --dump-conf
83 Dump the configuration in a format compatible with @file{qemu-ga.conf}
84 and exit.
85
86 @item -h, --help
87 Display this help and exit.
88 @end table
89
90 @c man end
91
92 @c man begin FILES
93
94 The syntax of the @file{qemu-ga.conf} configuration file follows the
95 Desktop Entry Specification, here is a quick summary: it consists of
96 groups of key-value pairs, interspersed with comments.
97
98 @example
99 # qemu-ga configuration sample
100 [general]
101 daemonize = 0
102 pidfile = /var/run/qemu-ga.pid
103 verbose = 0
104 method = virtio-serial
105 path = /dev/virtio-ports/org.qemu.guest_agent.0
106 statedir = /var/run
107 @end example
108
109 The list of keys follows the command line options:
110 @table @option
111 @item daemon= boolean
112 @item method= string
113 @item path= string
114 @item logfile= string
115 @item pidfile= string
116 @item fsfreeze-hook= string
117 @item statedir= string
118 @item verbose= boolean
119 @item blacklist= string list
120 @end table
121
122 @c man end
123
124 @ignore
125
126 @setfilename qemu-ga
127 @settitle QEMU Guest Agent
128
129 @c man begin AUTHOR
130 Michael Roth <mdroth@linux.vnet.ibm.com>
131 @c man end
132
133 @c man begin SEEALSO
134 qemu(1)
135 @c man end
136
137 @end ignore