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authorJens Freimann <jfreimann@redhat.com>2019-10-29 12:49:02 +0100
committerMichael S. Tsirkin <mst@redhat.com>2019-10-29 18:55:26 -0400
commitc7e0acd5a3f87d4aabb7a702aff87f83fc3ce151 (patch)
tree0868e8d6d33b26c4259d0331a85658f815ba0300 /qapi
parenta1190ab628c0e2816eae42786cd7396d6638aa48 (diff)
migration: add new migration state wait-unplug
This patch adds a new migration state called wait-unplug. It is entered after the SETUP state if failover devices are present. It will transition into ACTIVE once all devices were succesfully unplugged from the guest. So if a guest doesn't respond or takes long to honor the unplug request the user will see the migration state 'wait-unplug'. In the migration thread we query failover devices if they're are still pending the guest unplug. When all are unplugged the migration continues. If one device won't unplug migration will stay in wait_unplug state. Signed-off-by: Jens Freimann <jfreimann@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <20191029114905.6856-9-jfreimann@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'qapi')
-rw-r--r--qapi/migration.json5
1 files changed, 4 insertions, 1 deletions
diff --git a/qapi/migration.json b/qapi/migration.json
index e9e7a97c03..b7348d0c8b 100644
--- a/qapi/migration.json
+++ b/qapi/migration.json
@@ -133,6 +133,9 @@
# @device: During device serialisation when pause-before-switchover is enabled
# (since 2.11)
#
+# @wait-unplug: wait for device unplug request by guest OS to be completed.
+# (since 4.2)
+#
# Since: 2.3
#
##
@@ -140,7 +143,7 @@
'data': [ 'none', 'setup', 'cancelling', 'cancelled',
'active', 'postcopy-active', 'postcopy-paused',
'postcopy-recover', 'completed', 'failed', 'colo',
- 'pre-switchover', 'device' ] }
+ 'pre-switchover', 'device', 'wait-unplug' ] }
##
# @MigrationInfo: