Hypervisor (Xen & KVM) Pinning

Xen
># xm vcpu-list
># xm vcpu-pin green1 0-2

KVM
># taskset 0x00000003 qemu-system-x86_64 -hda green1.img -m 2048
># ps -eo pid,comm  | grep qemu
7532 qemu-system-x86

Current affinity mask
># taskset -p 7532

List current affinity list
># taskset -c -p 7532

Modify an already running KVM process
># taskset -p 0x00000001 7532

Can I using virsh command to pin core in KVM??

References
1. Pinning KVM, http://www.linux-kvm.com/content/tip-running-your-vm-specific-cpus
2. Xen VCPU Pinning Defaults Aren't Ideal, http://www.thefraggle.com/2009/09/01/xen-vcpu-pinning-defaults-arent-ideal/ 
3.