I have inherited a Xen setup. The dom0 and domU's are all linux. dom0 has 8 cores (or CPUs, I'm not sure). We want to run more stuff on one domU. I want to make it a multicore CPU, ie so that the domU will see 2 cores.
How do I do this in xen?
I don't care about forcing it to run on 2 specific CPUs (if that's an acceptable solution, that's fine). We're using a generic domU kernel (from somewhere). I don't know if this kernel can support multicore cpus (or if that's even an issue), it's relatively recent, 2.6.26.