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

[H. Peter Anvin]

On 10/02/2013 11:42 AM, Borislav Petkov wrote:
> 
> Yes, so the alignment has to be such that both PA and VA are the same
> amount of 4K pages away from the next 2M boundary, to put it bluntly.
> 
> I have a couple of ideas on how to do that.
> 

It's pretty straightforward - just drop the starting address to proper
alignment after you subtract the size.

	-hpa


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