Allow selecting which machine spec to run with QEMU
Allow selecting which machine spec to run with QEMU

stryan/redox,stryan/redox,imp/redox,nounoursheureux/redox,vvlevchenko/redox,vvlevchenko/redox,nxnfufunezn/redox,achanda/redox,stryan/redox,imp/redox,tedsta/redox,tedsta/redox,achanda/redox,nounoursheureux/redox,tedsta/redox,tedsta/redox,bheesham/redox,stryan/redox,achanda/redox,vvlevchenko/redox,bheesham/redox,nounoursheureux/redox,nxnfufunezn/redox,imp/redox,bheesham/redox,nxnfufunezn/redox,bheesham/redox