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53c4f9fa1c
So far, when CPUID data were converted into CPU model and features, the features can only be added to the model. As a result, when a guest asked for something like "qemu64,-svm" it would get a qemu32 plus a bunch of additional features instead. This patch adds support for removing feature from the base model. Selection algorithm remains the same: the best CPU model is the model which requires lowest number of features to be added/removed from it.
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>