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doc: update TYPE_MIGRATION documents 

[Peter collected Eduardo's patch comment and formatted into patch]

Suggested-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <1499242883-2184-5-git-send-email-peterx@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
This commit is contained in:
Peter Xu 2017-07-05 16:21:23 +08:00 committed by Dr. David Alan Gilbert
parent 16f7244842
commit c8d3ff384f
1 changed files with 6 additions and 6 deletions
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12
migration/migration.c
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@ -2052,12 +2052,12 @@ static void migration_instance_init(Object *obj)
static const TypeInfo migration_type = {
.name = TYPE_MIGRATION,
/*
* NOTE: "migration" itself is not really a device. We used
* TYPE_DEVICE here only to leverage some existing QDev features
* like "-global" properties, and HW_COMPAT_* fields (which are
* finally applied as global properties as well). If one day the
* global property feature can be migrated from QDev to QObject in
* general, then we can switch to QObject as well.
* NOTE: TYPE_MIGRATION is not really a device, as the object is
* not created using qdev_create(), it is not attached to the qdev
* device tree, and it is never realized.
*
* TODO: Make this TYPE_OBJECT once QOM provides something like
* TYPE_DEVICE's "-global" properties.
*/
.parent = TYPE_DEVICE,
.class_init = migration_class_init,