Re: [PATCH 1/3] x86, mm: Include the entire kernel memory map in trampoline_pgd

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>>> "H. Peter Anvin" <hpa@xxxxxxxxx> 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@xxxxxxxx> 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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