On 07/07/2011 03:13 AM, Stefan Hajnoczi wrote: > On Wed, Jul 6, 2011 at 3:03 PM, Eric Blake <ebl...@redhat.com> wrote: >> In other words, it looks like we are stuck with updating XML to track >> new file names any time we take a snapshot. > > Yes, but QEMU's snapshot_blkdev command takes a filename argument so > at least you get to specify that new filename.
Well, the best thing (from libvirt's point of view) would be if snapshot_blkdev took a single string argument, which is either a /path/to/filename (and qemu does open()) or fd:name notation (to refer to a previously-named fd passed via the getfd monitor command, so that libvirt does open()). This would make SELinux integration easier, as one of the sVirt goals is to get to the point where we can use SELinux to forbid qemu from open()ing files on NFS shares, while still permitting all other operations on already-open fds passed in from libvirt. -- Eric Blake ebl...@redhat.com +1-801-349-2682 Libvirt virtualization library http://libvirt.org
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