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diff --git a/QMP/README b/QMP/README index 50c31f20c9..09e7053753 100644 --- a/QMP/README +++ b/QMP/README @@ -4,45 +4,57 @@ Introduction ------------- -The QEMU Monitor Protocol (QMP) is a JSON[1] based protocol for QEMU. +The QEMU Monitor Protocol (QMP) allows applications to communicate with +QEMU's Monitor. -By using it applications can control QEMU in reliable and "parseable" way, -QMP also provides asynchronous events support. +QMP is JSON[1] based and has the following features: + +- Lightweight, text-based, easy to parse data format +- Asynchronous events support +- Stability For more information, please, refer to the following files: -o qmp-spec.txt QEMU Monitor Protocol current draft specification +o qmp-spec.txt QEMU Monitor Protocol current specification o qmp-events.txt List of available asynchronous events There are also two simple Python scripts available: o qmp-shell A shell -o vm-info Show some informations about the Virtal Machine +o vm-info Show some information about the Virtual Machine [1] http://www.json.org Usage ----- -To enable QMP, QEMU has to be started in "control mode". This is done -by passing the flag "control" to the "-monitor" command-line option. +To enable QMP, QEMU has to be started in "control mode". There are +two ways of doing this, the simplest one is using the the '-qmp' +command-line option. For example: -$ qemu [...] -monitor control,tcp:localhost:4444,server +$ qemu [...] -qmp tcp:localhost:4444,server Will start QEMU in control mode, waiting for a client TCP connection on localhost port 4444. -To manually test it you can connect with telnet and issue commands: +It is also possible to use the '-mon' command-line option to have +more complex combinations. Please, refer to the QEMU's manpage for +more information. + +Simple Testing +-------------- + +To manually test QMP one can connect with telnet and issue commands: $ telnet localhost 4444 -Trying ::1... +Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. {"QMP": {"capabilities": []}} { "execute": "query-version" } -{"return": "0.11.50"} +{"return": {"qemu": "0.11.50", "package": ""}} Contact ------- |