Re: swsusp vs pgdir

[Pavel Machek]

Hi!

> > We test that CPU has PSE feature. That means kernel is mapped using
> > 4MB page tables, and I do not have to care about page tables at
> > all.
> 
> Just enlighten me please: How do these 4Mb page tables work ? The pgdir
> entries contain special bits ? Then you at least must make sure the

The pgdir contains special bits, and there are no other levels of page
tables.

Now, I'm apparently rewriting swapper_pg_dir with itself (same
data). That's not too clean, but CPUs do not notice it...

> swapper_pgdir is left intact. This is the case ? (I also suppose you
> mean the entire linear mapping, not just the kernel, is mapped with
> 4M pages)

Yes.
								Pavel
-- 
When do you have a heart between your knees?
[Johanka's followup: and *two* hearts?]
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