virtio additions

This patchset updates kvm repository with Rusty's/Anthony's virtio implementation along with already sent tx performance bug fix and new module reload fixes.
The first 9 patches are Rusty's and Anthony's work and are pending in Rusty's tree.

This code together with the userspace patches able to do 800Mbps for network rx/tx.
Enjoy [with the courtesy of Anthony & Rusty],
Dor

-------------------------------------------------------------------------
This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005.
http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/