Re: [PATCH v3 0/5] x86: Show in sysfs if a memory node is able to do encryption

Mike Rapoport
2021-12-07T07:25:23Z

Hi Richard,

On Mon, Dec 06, 2021 at 07:58:10PM +0000, Richard Hughes wrote:
> On Sun, 5 Dec 2021 at 06:04, Mike Rapoport <rppt@kernel.org> wrote:
> > On Fri, Dec 03, 2021 at 04:21:43PM -0300, Martin Fernandez wrote:
> > > fwupd project plans to use it as part of a check to see if the users
> > > have properly configured memory hardware encryption capabilities.
> > I'm missing a description about *how* the new APIs/ABIs are going to be
> > used.
>
> We're planning to use this feature in the Host Security ID checks done
> at every boot. Please see
> https://fwupd.github.io/libfwupdplugin/hsi.html for details. I'm happy
> to answer questions or concerns. Thanks!

Can you please describe the actual check for the memory encryption and how
it would impact the HSI rating?

I wonder, for example, why did you choose per-node reporting rather than
per-region as described in UEFI spec.

--
Sincerely yours,
Mike.