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Add migration capabilities

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The management can query the current migration capabilities using
query-migrate-capabilities QMP command.
The user can use 'info migrate_capabilities' HMP command.
Currently only XBZRLE capability is available.

Signed-off-by: Orit Wasserman <owasserm@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>

Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
This commit is contained in:
Orit Wasserman 2012-08-06 21:42:47 +03:00 • committed by Juan Quintela
parent c03b0aa0ca
commit bbf6da32b5
8 changed files with 140 additions and 0 deletions
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39
qapi-schema.json
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@ -305,6 +305,45 @@
##
{ 'command': 'query-migrate', 'returns': 'MigrationInfo' }
##
# @MigrationCapability
#
# Migration capabilities enumeration
#
# @xbzrle: Migration supports xbzrle (Xor Based Zero Run Length Encoding).
# This feature allows us to minimize migration traffic for certain work
# loads, by sending compressed difference of the pages
#
# Since: 1.2
##
{ 'enum': 'MigrationCapability',
'data': ['xbzrle'] }
##
# @MigrationCapabilityStatus
#
# Migration capability information
#
# @capability: capability enum
#
# @state: capability state bool
#
# Since: 1.2
##
{ 'type': 'MigrationCapabilityStatus',
'data': { 'capability' : 'MigrationCapability', 'state' : 'bool' } }
##
# @query-migrate-capabilities
#
# Returns information about the current migration capabilities status
#
# Returns: @MigrationCapabilitiesStatus
#
# Since: 1.2
##
{ 'command': 'query-migrate-capabilities', 'returns': ['MigrationCapabilityStatus']}
##
# @MouseInfo:
#