PHYSICAL_PAGE_MASK vs. PAGE_MASK

[Timur Tabi <timur.tabi@xxxxxxxxxxx>]

Can someone tell me the difference between PHYSICAL_PAGE_MASK and 
PAGE_MASK?  Why was PHYSICAL_PAGE_MASK created?  And why is it not 
defined for i386 platforms?

--
Timur Tabi
Staff Software Engineer
timur.tabi@xxxxxxxxxxx

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