[libvirt-users] using more than 1 core by a virtual machine

My virtual machine xml file has <vcpu>2</vcpu> clause while the host has 2 physical cpus (cores). Is this enough to cause a VM running 2 endless loop threads to use the 2 cores ? In my case the VM running reports (cat /roc/cpuinfo) that it has 2 vcpus but it uses only 1 core (at a time) because the 'top' at the host shows 100%cpu (out of total 200%) used by the endless loop application Also virsh vcpuinfo <vm> shows only 1 CPU and 1 vcpu any idea ? thanks Zvi Dubitzky Email:dubi@il.ibm.com