virtio-iommu: Support migration
Add Migration support. We rely on recently added gtree and qlist migration. We only migrate the domain gtree. The endpoint gtree is re-constructed in a post-load operation. Signed-off-by: NEric Auger <eric.auger@redhat.com> Acked-by: NPeter Xu <peterx@redhat.com> Reviewed-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NMichael S. Tsirkin <mst@redhat.com> Message-Id: <20200214132745.23392-8-eric.auger@redhat.com> Reviewed-by: NMichael S. Tsirkin <mst@redhat.com> Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
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