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1d831a32a9
Currently there is no disk IO driver configuration for VMs running on KVM. That's OK for most the cases; however, recently there have been added some quite interesting optimizations with the IO driver io_uring. Note that IO URING requires: Qemu >= 5.0, and Libvirt >= 6.3.0. By using io_uring we can see a massive I/O performance improvement within Virtual Machines running from Local and/or NFS storage. This implementation enhances the KVM disk configuration by adding workflow for setting the disk IO drivers. Additionally, if the Qemu and Libvirt versions matches with the required for having io_uring we are going to set it on the VM. If there is no support for such driver we keep it as it is nowadays, without any IO driver configured. Fixes: #4883