Github user wido commented on the pull request: https://github.com/apache/cloudstack/pull/977#issuecomment-153312402 @DaanHoogland @ustcweizhou Overall it seems good! It's just hard to test this since it can break migration of VMs and you also have to deal with all the versions of libvirt. But overall I think it's OK. If you can take a look at my comments?
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