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SubjectRe: 4level page tables for Linux
> after you add the 4level, locking will become
> necessary for the pgd, but it's still not needed
> for the pml4.
> I'm not very excited about changing the naming,
> of the pgd/pmd/pte so I like to keep it like it is now.
> peraphs we could consider pgd4 instead of pml4.
> What does "pml" stands for?

The "pmd" one is certainly nonsense now.
It means "page middle directory".

Numbers for all of them would be easy to deal with.
Like this: pd1, pd2, pd3, pd4...

I'd number going toward the page, because that's
the order in which these things get walked.

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