From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jacob Gorm Hansen <jacobg@diku.dk>
Subject: Re: L1 page tables and get_pfn_type_batch()
Date: Tue, 16 Aug 2005 14:01:53 +0200
Message-ID: <4301D5B1.1070504@diku.dk>
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To: "Aaron J. Marks" <ajmarks@seas.upenn.edu>
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Aaron J. Marks wrote:
> hi all,
> 
> i have two questions regarding the page tables of domains.
> 
> 1. get_pfn_type_batch() seems to have a single-page limit. ie, trying to
> get pfn types for an array larger than a page fails. why the restriction?
> 
> 2. L1 page tables seem to contain mfns of not only L2 pages, but "normal"
> pages as well. can anyone explain this?

I am just guessing, but perhaps you are confusing Xen's (weird) notion
of what is L1 and what is L2. In Xen, the top-level page directory
(assuming two-level page tables) is considered L2, and the leaf page
tables are considered L1.

Jacob