Re: [PATCH 0/3 v5] e820: Fix handling of NvDIMM chips

From: Andy Lutomirski
Date: Thu Mar 05 2015 - 18:07:05 EST


On Thu, Mar 5, 2015 at 2:48 PM, H. Peter Anvin <hpa@xxxxxxxxx> wrote:
> Seriously, if type 12 is the de facto standard for NvDIMMs, I think we
> should add it. The documented ACPI method of using flags was doomed
> from the start.

I think it's a de facto standard that type 12 means "nvdimm". I don't
think there's any kind of standard as to whether that means that it's
permissible to touch that memory or that nvdimm means type 12.

I have no problem w/ the resource name saying "nvdimm", but I do
object to autoloading anything as a result.

(There is no type 12 on EFI, nor will there ever be, since there is no
e820 at all on EFI.)

--Andy

>
> -hpa
>



--
Andy Lutomirski
AMA Capital Management, LLC
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