How to access physical memory
scwsy00 at gmail.com
Mon Dec 24 03:24:12 UTC 2018
Hi I'm the new here . And I have some questions with pmap.
See `*pml4` is the physical address of a page with some flag. And then
updated the address to the Direct Map Space. Then We calculate the offset
of the real pdp we need .
How could it access to `*pdp`? it is a virtual addr in Direct Map Space.
Why don't change the physical space directly since we have the physical
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