52 lines
1.3 KiB
Plaintext
52 lines
1.3 KiB
Plaintext
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QEMU Monitor Protocol
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=====================
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Introduction
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-------------
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The QEMU Monitor Protocol (QMP) is a JSON[1] based protocol for QEMU.
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By using it applications can control QEMU in reliable and "parseable" way,
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QMP also provides asynchronous events support.
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For more information, please, refer to the following files:
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o qmp-spec.txt QEMU Monitor Protocol current draft specification
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o qmp-events.txt List of available asynchronous events
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There are also two simple Python scripts available:
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o qmp-shell A shell
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o vm-info Show some informations about the Virtal Machine
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[1] http://www.json.org
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Usage
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-----
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To enable QMP, QEMU has to be started in "control mode". This is done
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by passing the flag "control" to the "-monitor" command-line option.
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For example:
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$ qemu [...] -monitor control,tcp:localhost:4444,server
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Will start QEMU in control mode, waiting for a client TCP connection
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on localhost port 4444.
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To manually test it you can connect with telnet and issue commands:
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$ telnet localhost 4444
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Trying ::1...
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Connected to localhost.
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Escape character is '^]'.
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{"QMP": {"capabilities": []}}
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{ "execute": "query-version" }
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{"return": "0.11.50"}
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Contact
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-------
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http://www.linux-kvm.org/page/MonitorProtocol
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Luiz Fernando N. Capitulino <lcapitulino@redhat.com>
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