1. A system for controlled memory view switching, said system comprising: a memory module comprising a shared address space between a first memory view and a second memory view; a virtual machine monitor (VMM) to maintain a list of Controlled View Switch (CVS) descriptors; and a processor to receive a memory view switch request and to execute an instruction to save processor state information and switch from said first memory view to said second memory view, wherein said second memory view is specified by an extended page table pointer (EPTP) provided by one of said CVS descriptors.