Re: [RFC PATCH 0/8] x86_64: Harden compressed kernel, part 1

Greg KH
2022-08-04T11:22:12Z

On Thu, Aug 04, 2022 at 01:41:58PM +0300, Evgeniy Baskov wrote:
> On 2022-08-03 17:05, Dave Hansen wrote:
> >
> > That shows me that it's _possible_ to build a more strict PE loader that
> > wouldn't load Linux. But, in practice is anyone using a more strict PE
> > loader? Does anyone actually want that in practice? Or, again, is this
> > more strict PE loader just an academic demonstration?
> >
> > The README starts:
> >
> > This branch demonstrates...
> >
> > That doesn't seem like something that's _important_ to deal with.
> > Sounds like a proof-of-concept.
> >
> > Don't get me wrong, I'm all for improving thing, even if the benefits
> > are far off. But, let's not fool ourselves.
>
> We have commercial closed-source UEFI firmware implementation at ISP RAS
> that follows the behavior of the secure_pe branch. That firmware is used
> as a part of [1].
>
> [1] https://www.ispras.ru/en/technologies/asperitas/

Are there any plans on getting those changes merged back upstream to the
main UEFI codebase so that others can test this type of functionality
out?

thanks,

greg k-h