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Add a new capability to ensure the iothreads feature exists for the qemu emulator being run - requires the "query-iothreads" QMP command. Using the domain XML add correspoding command argument in order to generate the threads. The iothreads will use a name space "iothread#" where, the future patch to add support for using an iothread to a disk definition to merely define which of the available threads to use. Add tests to ensure the xml/argv processing is correct. Note that no change was made to qemuargv2xmltest.c as processing the -object element would require knowing more than just iothreads.
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>
Description
Libvirt provides a portable, long term stable C API for managing the
virtualization technologies provided by many operating systems. It
includes support for QEMU, KVM, Xen, LXC, bhyve, Virtuozzo, VMware
vCenter and ESX, VMware Desktop, Hyper-V, VirtualBox and the POWER
Hypervisor.
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