Re: [PATCH -v2] EFI: Runtime services virtual mapping

From: H. Peter Anvin
Date: Wed Oct 02 2013 - 11:44:40 EST


On 10/02/2013 03:04 AM, Borislav Petkov wrote:
> When we start allocating from -4G, i.e. 0xffffffff00000000, I think we
> want to do it bottom-up so that 0xffffffff00000000 is the *last*, i.e.
> lowest address. Because we link the kernel text at 0xffffffff81000000 by
> default, which would mean, if -4G was the first address, we'll have only
> 2G:

Right.

-hpa


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