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For s390 we don't want to have a default USB device generated even if QEMU is silently tolerating -usb on the command line. This may change in the future. Another reason to avoid the USB controller is that it implies a PCI bus which might cause a regression at some later point in time. The following change will set the USB controller model to 'none' unless a model or address has been specified, which can be the case if a legacy definition is loaded or the XML writer knows what she/he's doing. Requiring the user to explicitly disable USB on systems not supporting it seems cumbersome. Signed-off-by: Viktor Mihajlovski <mihajlov@linux.vnet.ibm.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>