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Re: [Xen-devel] [RESEND] Question about recursive mappings


On 23 May 2006, at 10:41, Ian Pratt wrote:

Can you explain the pagtable structure a little better please. Does the
L3 contain an entry point at itself (recursive), or at another L3
(foreign)?

I've never come across non-root pagetable linear mappings other than in
the crock that is PAE (3 level) where you have to use 4 entries in an L2
to point to all the L2s due to the limited address space.

And that's something we don't currently support. A slightly more generic linear pagetable logic that would permit us to support linear pagetables on PAE would be a good thing.

 -- Keir


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