Hi Vaibhav,
identity mappings no longer useful.According to this article http://geezer.osdevbrasil.net/osd/mem/index.htm#identity - "The page table entries used to identity-map kernel memory can be deleted once paging and virtual addresses are enabled." Can somebody please explain?
I don't have a good idea on this. But my guess is, these entries has to there to enable MMU. Because after enabling it you are still in the same address space. Basically kernel needs an x to x translation(identity mapping) before kernel do the jump to the virtual space (0xc000 0000), after that those entries are not needed any more. Will wait for our kernel experts comments.
Thanks Vaibhav Jain
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