"liyu@WAN" <[email protected]> writes:
>
> I can not understand this. I search intel developer mannal. but
> nothing to help.
> Who can tell me why?
bit 0 is the present bit which needs to be set on the PGD, otherwise
the CPU will ignore it. A clearer way to write this would have been
__pgd(__pa(pmd) | _PAGE_PRESENT)
-Andi
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