Merge remote-tracking branch 'remotes/berrange/tags/pull-qio-2017-10-04-1' into staging

[qemu.git] / qapi / common.json

# -*- Mode: Python -*-

##
# = Common data types
##

##
# @QapiErrorClass:
#
# QEMU error classes
#
# @GenericError: this is used for errors that don't require a specific error
#                class. This should be the default case for most errors
#
# @CommandNotFound: the requested command has not been found
#
# @DeviceNotActive: a device has failed to be become active
#
# @DeviceNotFound: the requested device has not been found
#
# @KVMMissingCap: the requested operation can't be fulfilled because a
#                 required KVM capability is missing
#
# Since: 1.2
##
{ 'enum': 'QapiErrorClass',
  # Keep this in sync with ErrorClass in error.h
  'data': [ 'GenericError', 'CommandNotFound',
            'DeviceNotActive', 'DeviceNotFound', 'KVMMissingCap' ] }

##
# @IoOperationType:
#
# An enumeration of the I/O operation types
#
# @read: read operation
#
# @write: write operation
#
# Since: 2.1
##
{ 'enum': 'IoOperationType',
  'data': [ 'read', 'write' ] }

##
# @OnOffAuto:
#
# An enumeration of three options: on, off, and auto
#
# @auto: QEMU selects the value between on and off
#
# @on: Enabled
#
# @off: Disabled
#
# Since: 2.2
##
{ 'enum': 'OnOffAuto',
  'data': [ 'auto', 'on', 'off' ] }

##
# @OnOffSplit:
#
# An enumeration of three values: on, off, and split
#
# @on: Enabled
#
# @off: Disabled
#
# @split: Mixed
#
# Since: 2.6
##
{ 'enum': 'OnOffSplit',
  'data': [ 'on', 'off', 'split' ] }

##
# @String:
#
# A fat type wrapping 'str', to be embedded in lists.
#
# Since: 1.2
##
{ 'struct': 'String',
  'data': {
    'str': 'str' } }

##
# @StrOrNull:
#
# This is a string value or the explicit lack of a string (null
# pointer in C).  Intended for cases when 'optional absent' already
# has a different meaning.
#
# @s: the string value
# @n: no string value
#
# Since: 2.10
##
{ 'alternate': 'StrOrNull',
  'data': { 's': 'str',
            'n': 'null' } }