Paravirtualization support in Linux 2.6.20

February 5, 2007

Interesting, the newest kernel release includes a paravirtualization layer. From this changelog:

Paravirtualization is the act of running a guest operating system, under control of a host system, where the guest has been ported to a virtual architecture which is almost like the hardware it is actually running on. This technique allows full guest systems to be run in a relatively efficient manner (continue reading this LWN article for more information). This allows to link different hypervisors (lguest/lhype/rustyvisor implements a hypervisor in 6.000 lines; Xen and Vmware will be probably ported to this framework some day). There are limitations like no SMP support yet; this feature will evolve a lot with the time