Re: [PATCH 05/12] i386: During page table initialization always set the leaf page table entries.
- From: Andi Kleen <ak@xxxxxxx>
- Date: Mon, 30 Apr 2007 18:21:42 +0200
On Monday 30 April 2007 18:03:27 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.
I hadn't but i merged it now into the original patch thanks
-Andi
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
- References:
- [PATCH 0/12] Early USB debug port and i386 boot cleanups
- From: Eric W. Biederman
- [PATCH 04/12] i386 voyager: Use modern techniques to setup and teardown low identiy mappings.
- From: Eric W. Biederman
- [PATCH 05/12] i386: During page table initialization always set the leaf page table entries.
- From: Eric W. Biederman
- [PATCH 0/12] Early USB debug port and i386 boot cleanups
- Prev by Date: Re: [patches] [PATCH] [8/35] x86_64: a memcpy that tries to reducecache pressure
- Next by Date: Re: [PATCH] change global zonelist order v4 [1/2] change zonelist ordering.
- Previous by thread: Re: [PATCH 06/12] i386: Minimum cpu detection cleanups.
- Next by thread: Re: [PATCH 05/12] i386: During page table initialization always set the leaf page table entries.
- Index(es):