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[Xen-devel] pagetable handling in xen

To: xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-devel] pagetable handling in xen
From: "Aaron J. Marks" <ajmarks@xxxxxxxxxxxxxx>
Date: Mon, 24 Oct 2005 15:46:52 -0400 (EDT)
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i'm trying to understand how xen handles pagetables, but i'm a bit
confused:

1. where is a new domain's memory mapping initialized in xen?
2. what're the differences between idle_pg_table and linear_pg_table and
are they indexed by guest linear page #s or hardware page #s?
3. [this is more of an affirmation, than a question] xen can't arbitrarily
access *any* physical page because it doesn't map all of physical
memory (eg, like linux does from PAGE_OFFSET)?

thanks,
-A.

--
Aaron Marks
Distributed Systems Lab
University of Pennsylvania
www.cis.upenn.edu/~ajmarks

"Strange women lying in ponds distributing swords is no basis
 for a system of government."


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