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9237e9558a
This patch allows for using custom scripts instead of /usr/bin/qemu emulator in domain XML. To do so, one would specify relative path to the custom script in <emulator/>. The path needs to be relative to qemuxml2argvdata directory and it will be transparently made absolute in runtime. The expected command line needs to contain the exact relative path as was used in domain XML. The problem is RelaxNG schema for domain XML only allows for absolute path within <emulator/>. To workaround it, an extra '/' must be added at the beginning of the path. That is, instead of "./qemu.sh" or "../emulator/qemu.sh" one would use "/./qemu.sh" or "/../emulator/qemu.sh". The extra slash is removed before further processing. I don't like this workaround, it's very ugly but it's the best option I was able to come up with. Relaxing domain XML schema is not an option IMO.
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>