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xen-devel
[Xen-devel] RE: The memory type of non-RAM address is WB by default?
Keir Fraser wrote:
> The issue with setting the WB/UC boundary at top of RAM rather than
> at 3.75G is that this boundary is general no more than page-aligned.
> Hence you'd need tens of variable MTRR ranges to express it;
> considerably more than the eight which we supply. This is because of
> the requirement for each such range to be power-of-two sized and
> aligned.
Thanks for the explanation. I understand the situation.
Thanks,
-- Dexuan
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