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8c6d365373
Adjust the device string that is built for vhost-scsi devices so that it can be invoked from hotplug. From the QEMU command line, the file descriptors are expect to be numeric only. However, for hotplug, the file descriptors are expected to begin with at least one alphabetic character else this error occurs: # virsh attach-device guest_0001 ~/vhost.xml error: Failed to attach device from /root/vhost.xml error: internal error: unable to execute QEMU command 'getfd': Parameter 'fdname' expects a name not starting with a digit We also close the file descriptor in this case, so that shutting down the guest cleans up the host cgroup entries and allows future guests to use vhost-scsi devices. (Otherwise the guest will silently end.) Signed-off-by: Eric Farman <farman@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>