KVM is a Kernel-based Virtual Machine driver.  It relies on Intel VT or AMD-V hardware and does full virtualization.  As of late 2006 it is pretty new code, but it is already available in kernel packages for Open``Su``SE, Debian and RHEL-RT.

More information on KVM can be found on http://kvm.qumranet.com/

Some [[KVM:Performance|performance numbers]] with KVM.