Re: [PATCH] x86/efi: Access EFI MMIO data as unencrypted when SEV is active

[Borislav Petkov]

On Tue, Jul 03, 2018 at 04:16:57PM -0500, Brijesh Singh wrote:
> I agree with Ard, it may be good idea to extend the UEFI spec to
> include encryption information. Having this information may be helpful
> in some cases, e.g if we ever need to map a specific non IO memory as
> unencrypted. So far we have not seen the need for it. But I will ask AMD
> folks working closely with UEFI committee to float this and submit it as
> enhancement in Tianocore BZ.

Except that if the IO memory handling unencrypted changes in future
incarnations, the changes to the spec become moot. I'm just saying...

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