Some knowledge about the ix86 paging mechanism will be helpfull (i think
mandatory) to proceed with this document. I have seen a lot of good documents
from Intel, that are really usefull. I will try to link them in the
It is not necessary to enable paging and segmentation in ix86 architecture. But enabling them provides lot of functionality like segment wise protection and virtual memory. So paging is enabled linux and is done in the early boot process itself.