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Migration: Emit event at start of pass

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Emit an event each time we sync the dirty bitmap on the source;
this helps libvirt use postcopy by giving it a kick when it
might be a good idea to start the postcopy.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Amit Shah <amit.shah@redhat.com>
Message-Id: <1450266458-3178-5-git-send-email-dgilbert@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
This commit is contained in:
Dr. David Alan Gilbert 2015-12-16 11:47:36 +00:00 • committed by Amit Shah
parent 6ba996bb45
commit 4addcd4fdc
3 changed files with 31 additions and 0 deletions
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13
qapi/event.json
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@ -254,6 +254,19 @@
{ 'event': 'MIGRATION',
'data': {'status': 'MigrationStatus'}}
##
# @MIGRATION_PASS
#
# Emitted from the source side of a migration at the start of each pass
# (when it syncs the dirty bitmap)
#
# @pass: An incrementing count (starting at 1 on the first pass)
#
# Since: 2.6
##
{ 'event': 'MIGRATION_PASS',
'data': { 'pass': 'int' } }
##
# @ACPI_DEVICE_OST
#