Re: [PATCH 2/2] arm64/efi: Don't pad between EFI_MEMORY_RUNTIME regions

From: H. Peter Anvin
Date: Tue Sep 29 2015 - 20:56:49 EST

On 09/29/2015 07:36 AM, Matt Fleming wrote:
> That's a pretty good summary for x86. I think specifically the reason
> we map the EFI memmap entries "backwards" (entry N has higher VA than
> entry N+1) is because the code was easier to write that way, but
> you'll know better than me ;-)

There were two reasons:

1. The code was easier to write.
2. Windows did it that way.

Windows apparently broke and was changed due to this feature, too.


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