[libvirt] qemu -numa option and non-contiguous CPU ranges

Hi, I just noticed libvirt tries to use the -numa option in a way that qemu never understood: if a node is configured to have a non-contiguous set of CPUs, it tries to generate a command-line option that looks like: "-numa node,nodeid=...,cpus=0,2,4,mem=..." ^^^^^ But this format was never supported by qemu. This format is even a bit weird, as "," is an option separator, and it is being used as a separator _inside_ an option. My question is: should we support this option format in qemu, or should we change libvirt to use another format (that has yet to be implemented, because currently there's no way to specify a non-contiguous set of CPUs for a NUMA node). Any suggestions? -- Eduardo