7 The QEMU Monitor Protocol (QMP) allows applications to communicate with
10 QMP is JSON[1] based and has the following features:
12 - Lightweight, text-based, easy to parse data format
13 - Asynchronous events support
16 For more information, please, refer to the following files:
18 o qmp-spec.txt QEMU Monitor Protocol current specification
19 o qmp-events.txt List of available asynchronous events
21 There are also two simple Python scripts available:
24 o vm-info Show some information about the Virtual Machine
26 [1] http://www.json.org
31 To enable QMP, QEMU has to be started in "control mode". There are
32 two ways of doing this, the simplest one is using the the '-qmp'
37 $ qemu [...] -qmp tcp:localhost:4444,server
39 Will start QEMU in control mode, waiting for a client TCP connection
40 on localhost port 4444.
42 It is also possible to use the '-mon' command-line option to have
43 more complex combinations. Please, refer to the QEMU's manpage for
49 To manually test QMP one can connect with telnet and issue commands:
51 $ telnet localhost 4444
53 Connected to localhost.
54 Escape character is '^]'.
55 {"QMP": {"version": {"qemu": "0.12.50", "package": ""}, "capabilities": []}}
56 { "execute": "qmp_capabilities" }
58 { "execute": "query-version" }
59 {"return": {"qemu": "0.12.50", "package": ""}}
64 http://www.linux-kvm.org/page/MonitorProtocol
65 Luiz Fernando N. Capitulino <lcapitulino@redhat.com>