"For only being a release candidate the Linux 2.6.20 kernel has
already generated quite a bit of attention. On top of adding
asynchronous SCSI scanning, multi-threaded USB probing, and many
driver updates, the Linux 2.6.20 kernel will include a full
virtualization (not para-virtualization) solution. Kernel-based
Virtual Machine (or KVM for short) is a GPL software project that
has been developed and sponsored by Qumranet. In this article we
are offering a brief overview of the Kernel-based Virtual Machine
for Linux as well as offering up in-house performance numbers as we
compare KVM to other virtualization solutions such as QEMU
Accelerator and Xen.
"What has been merged into the Linux 2.6.20 kernel is the device
driver for managing the virtualization hardware..."