Re: [PATCH 05/12] i386: During page table initialization always setthe leaf page table entries.
From: Jeremy Fitzhardinge
Date: Mon Apr 30 2007 - 12:34:26 EST
Eric W. Biederman wrote:
> If we don't set the leaf page table entries it is quite possible that
> will inherit and incorrect page table entry from the initial boot
> page table setup in head.S. So we need to redo the effort here,
> so we pick up PSE, PGE and the like.
> Hypervisors like Xen require that their page tables be read-only,
> which is slightly incompatible with our low identity mappings, however
> I discussed this with Jeremy he has modified the Xen early set_pte
> function to avoid problems in this area.
> Andi I sent this once a part of the discussion on this issue so
> you may already have this patch in your queue.
> Signed-off-by: Eric W. Biederman <ebiederm@xxxxxxxxxxxx>
Acked-by: Jeremy Fitzhardinge <jeremy@xxxxxxxxxxxxx>
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