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401702d92e
Since 1.2.8 it's possible to use OVMF on domains. Moreover, it's possible to have libvirt create NVRAM file per domain. Later, when domain is undefined, the file is removed too. However, things are a bit complicated when domain's transient. There's no undefine to transient domains. There are two options: 1) leave the file behind and let mgmt app remove it. 2) remove it automatically as domain dies. But, in some scenarios mgmt app may want to preserve the file, copy it somewhere safe, and then copy it back when the domain is starting again. And this wouldn't be possible with case 2). So, even though case 1) leaves some files behind (possibly undeleted for a long time), the files themselves are small (128K each). And data loss is worse than full disk, isn't it? Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
LibVirt : simple API for virtualization
Libvirt is a C toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes). It is free software
available under the GNU Lesser General Public License. Virtualization of
the Linux Operating System means the ability to run multiple instances of
Operating Systems concurrently on a single hardware system where the basic
resources are driven by a Linux instance. The library aim at providing
long term stable C API initially for the Xen paravirtualization but
should be able to integrate other virtualization mechanisms if needed.
Daniel Veillard <veillard@redhat.com>