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→Guest Operating System Virtualization
The following figure provides an illustration of guest OS based virtualization.
[[Image:guest_os_diagram.jpg|center|thumb|100px|Sunflowers]] As outlined in the above diagram, the guest operating systems operate in virtual machines with in the virtualization application which in turn runs on top of the host operating system in the same way as any other application. Clearly, with these levels of indirection between the guest operating systems and the host hardware this approach is not amongst the fasted of virtualization solutions. It does, however, have the advantages that no changes are necessary to the host or guest operating systems and no special CPU virtualization support is needed. == Shared Kernel Virtualization ==
