Messages in this thread | | | Date | Mon, 08 Oct 2012 07:43:41 +0100 | From | "Jan Beulich" <> | Subject | Re: [PATCH 1/3] x86, mm: Include the entire kernel memory map in trampoline_pgd |
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>>> "H. Peter Anvin" <hpa@zytor.com> 10/07/12 12:27 PM >>> >Actually, no, because we may need to double-map in the low address space per discussion at LPC.
Now this I don't follow (due to lack of context), but it would of course be relevant for determining the need eventual further adjustments to the patch we're discussing here.
Jan
>Jan Beulich <jbeulich@suse.com> wrote: > >>>On 10/04/2012 11:39 PM, Jan Beulich wrote: >>I understand all that, but here we're talking about a true 1:1 mapping >>(i.e. in the lower half of the virtual address space), as opposed to >>the >>direct mapping (in the upper half). We can obviously use all of the >>lower >>half for this purpose.
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