-------- Original message -------- Subject: Re: [libvirt-users] Can I configure cores instead of CPU's From: Todd And Margo Chester <toddandmargo(a)gmail.com&gt; To: &quot;libvirt-users(a)redhat.com&quot; <libvirt-users(a)redhat.com&gt; CC: Hi All, Scientific Linux 6.1 x64 qemu-kvm-0.12.1.2-2.160.el6_1.2.x86_64 My XP-Pro guest will only let me use two CPUs. Is there a way I can tell Virt-Manager to use one CPU with six cores instead of four separate CPUs? I can manually insert things with virsh edit KVM-WinXP Currently, I have: <vcpu>6</vcpu> I found an example of a run string: -smp 2,sockets=2,cores=1,threads=1 But I will be darned if I can figure out the virsh xml syntax. Many thanks, -T

Yes under advanced in cpu in virt manager are socket /core settings. i use a fedora virt manager to connect to sl61 libvirt. more options that way.