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authorAndrey Gruzdev <andrey.gruzdev@virtuozzo.com>2021-01-29 13:14:03 +0300
committerDr. David Alan Gilbert <dgilbert@redhat.com>2021-02-08 11:19:51 +0000
commit6e8c25b4c623f755f588893661fec77ae88e128a (patch)
tree635c5956b219e1d674fa2fe365a10c4a0df4f5ee /qapi/migration.json
parent1dfafcbd39d55b88abc96401642f697db6131ea0 (diff)
migration: introduce 'background-snapshot' migration capability
Add new capability to 'qapi/migration.json' schema. Update migrate_caps_check() to validate enabled capability set against introduced one. Perform checks for required kernel features and compatibility with guest memory backends. Signed-off-by: Andrey Gruzdev <andrey.gruzdev@virtuozzo.com> Reviewed-by: Peter Xu <peterx@redhat.com> Acked-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20210129101407.103458-2-andrey.gruzdev@virtuozzo.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Diffstat (limited to 'qapi/migration.json')
-rw-r--r--qapi/migration.json7
1 files changed, 6 insertions, 1 deletions
diff --git a/qapi/migration.json b/qapi/migration.json
index d1d9632c2a..6c12b368aa 100644
--- a/qapi/migration.json
+++ b/qapi/migration.json
@@ -442,6 +442,11 @@
# @validate-uuid: Send the UUID of the source to allow the destination
# to ensure it is the same. (since 4.2)
#
+# @background-snapshot: If enabled, the migration stream will be a snapshot
+# of the VM exactly at the point when the migration
+# procedure starts. The VM RAM is saved with running VM.
+# (since 6.0)
+#
# Since: 1.2
##
{ 'enum': 'MigrationCapability',
@@ -449,7 +454,7 @@
'compress', 'events', 'postcopy-ram', 'x-colo', 'release-ram',
'block', 'return-path', 'pause-before-switchover', 'multifd',
'dirty-bitmaps', 'postcopy-blocktime', 'late-block-activate',
- 'x-ignore-shared', 'validate-uuid' ] }
+ 'x-ignore-shared', 'validate-uuid', 'background-snapshot'] }
##
# @MigrationCapabilityStatus: