Re: [PATCH 1/1] x86: Exclude E820_RESERVED regions and memory holesabove 4 GB from direct mapping.

[Yinghai Lu]

On Fri, Dec 16, 2011 at 9:54 AM, H. Peter Anvin <hpa@xxxxxxxxx> wrote:

>
> For 2 - why can't we simply make the invariant that E820_RAM is mapped and
> nothing else, with the sole exceptions being the 1 MiB (fixed MTRR)?

Yes, we could do that. but need to track mapped area in simple way.
like later memory hotadd or remove to update those tracking.

Thanks

Yinghai
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