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Diffstat (limited to 'qapi-schema.json')
-rw-r--r-- | qapi-schema.json | 49 |
1 files changed, 48 insertions, 1 deletions
diff --git a/qapi-schema.json b/qapi-schema.json index 661f82b033..ddc878390e 100644 --- a/qapi-schema.json +++ b/qapi-schema.json @@ -1,6 +1,53 @@ # -*- Mode: Python -*- +## +# = Introduction +# +# This document describes all commands currently supported by QMP. +# +# Most of the time their usage is exactly the same as in the user Monitor, this +# means that any other document which also describe commands (the manpage, +# QEMU's manual, etc) can and should be consulted. +# +# QMP has two types of commands: regular and query commands. Regular commands +# usually change the Virtual Machine's state someway, while query commands just +# return information. The sections below are divided accordingly. +# +# It's important to observe that all communication examples are formatted in +# a reader-friendly way, so that they're easier to understand. However, in real +# protocol usage, they're emitted as a single line. +# +# Also, the following notation is used to denote data flow: +# +# Example: +# +# | -> data issued by the Client +# | <- Server data response # -# QAPI Schema +# Please, refer to the QMP specification (docs/qmp-spec.txt) for +# detailed information on the Server command and response formats. +# +# = Stability Considerations +# +# The current QMP command set (described in this file) may be useful for a +# number of use cases, however it's limited and several commands have bad +# defined semantics, specially with regard to command completion. +# +# These problems are going to be solved incrementally in the next QEMU releases +# and we're going to establish a deprecation policy for badly defined commands. +# +# If you're planning to adopt QMP, please observe the following: +# +# 1. The deprecation policy will take effect and be documented soon, please +# check the documentation of each used command as soon as a new release of +# QEMU is available +# +# 2. DO NOT rely on anything which is not explicit documented +# +# 3. Errors, in special, are not documented. Applications should NOT check +# for specific errors classes or data (it's strongly recommended to only +# check for the "error" key) +# +## # QAPI common definitions { 'include': 'qapi/common.json' } |