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For some machine types ppc64 machines now require that memory sizes are aligned to 256MiB increments (due to the dynamically reconfigurable memory). As now we treat existing configs reasonably in regards to migration, we can round all the sizes unconditionally. The only drawback will be that the memory size of a VM can potentially increase by (256MiB - 1byte) * number_of_NUMA_nodes. Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1249006
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>