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d10cfaec3b
Currently, if there's an error opening /dev/vhost-net (e.g. because it doesn't exist) but it's not required we proceed with vhostfd array filled with -1 and vhostfdSize unchanged. Later, when constructing the qemu command line only non-negative items within vhostfd array are taken into account. This means, vhostfdSize may be greater than the actual count of non-negative items in vhostfd array. This results in improper command line arguments being generated, e.g.: -netdev tap,fd=21,id=hostnet0,vhost=on,vhostfd=(null)
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>