Re: Marking a physical page as uncacheable

Timur Tabi
2000-07-20T16:16:45Z

** Reply to message from Manfred Spraul <manfred@colorfullife.com> on Thu, 20
Jul 2000 18:16:56 +0200

> You could use ClearPageReserved() + ioremap(), but ioremap() is limited
> to the first 4 GB.

The 4GB limit is okay for now.

What does ClearPageReserved do? Does it make the kernel think that the page is
part of high memory?