diff options
| author | Jens Freimann <jfreimann@redhat.com> | 2019-10-29 12:49:02 +0100 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2019-10-29 18:55:26 -0400 |
| commit | c7e0acd5a3f87d4aabb7a702aff87f83fc3ce151 (patch) | |
| tree | 0868e8d6d33b26c4259d0331a85658f815ba0300 /migration/migration.h | |
| parent | a1190ab628c0e2816eae42786cd7396d6638aa48 (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 'migration/migration.h')
| -rw-r--r-- | migration/migration.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/migration/migration.h b/migration/migration.h index 4f2fe193dc..79b3dda146 100644 --- a/migration/migration.h +++ b/migration/migration.h @@ -206,6 +206,9 @@ struct MigrationState /* Flag set once the migration thread called bdrv_inactivate_all */ bool block_inactive; + /* Migration is waiting for guest to unplug device */ + QemuSemaphore wait_unplug_sem; + /* Migration is paused due to pause-before-switchover */ QemuSemaphore pause_sem; |