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1298daca29
This started as an investigation into an issue where libvirt (using the libxl driver) and the Xen host, like an old couple, could not agree on who is responsible for selecting the VNC port to use. Things usually (and a bit surprisingly) did work because, just like that old couple, they had the same idea on what to do by default. However it was possible that this ended up in a big argument. The problem is that display information exists in two different places: in the vfbs list and in the build info. And for launching the device model, only the latter is used. But that never gets initialized from libvirt. So Xen allows the device model to select a default port while libvirt thinks it has told Xen that this is done by libvirt (though the vfbs config). While fixing that, I made a stab at actually evaluating the configuration of the video device. So that it is now possible to at least decide between a Cirrus or standard VGA emulation and to modify the VRAM within certain limits using libvirt. Signed-off-by: Stefan Bader <stefan.bader@canonical.com> Signed-off-by: Jim Fehlig <jfehlig@suse.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>