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

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

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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