Hi Matt,
On Tue, 29 Mar 2022 at 19:41, Matthew Garrett wrote:
>
> We're still trying to come to a conclusion about the most maintainable
> approach to getting DRTM implementations like Intel TXT working on UEFI
> platforms under Linux. I'm going to try to summarise the situation here
> - I'm not
On Wed, Mar 30, 2022 at 09:02:18AM +0200, Ard Biesheuvel wrote:
> Wouldn't it be better for the secure launch kernel to boot the EFI
> entrypoint directly? As it happens, I just completed a PoC last week
> for a minimal implementation of EFI (in Rust) that only carries the
> pieces that the EFI st
On Wed, 30 Mar 2022 at 09:11, Matthew Garrett wrote:
>
> On Wed, Mar 30, 2022 at 09:02:18AM +0200, Ard Biesheuvel wrote:
>
> > Wouldn't it be better for the secure launch kernel to boot the EFI
> > entrypoint directly? As it happens, I just completed a PoC last week
> > for a minimal implementatio
On Wed, Mar 30, 2022 at 09:12:19AM +0200, Ard Biesheuvel wrote:
> On Wed, 30 Mar 2022 at 09:11, Matthew Garrett wrote:
> > The EFI stub carries out a bunch of actions that have meaningful
> > security impact, and that's material that should be measured. Having the
> > secure launch kernel execute
On Wed, 30 Mar 2022 at 09:19, Matthew Garrett wrote:
>
> On Wed, Mar 30, 2022 at 09:12:19AM +0200, Ard Biesheuvel wrote:
> > On Wed, 30 Mar 2022 at 09:11, Matthew Garrett wrote:
> > > The EFI stub carries out a bunch of actions that have meaningful
> > > security impact, and that's material that
On Wed, Mar 30, 2022 at 09:23:17AM +0200, Ard Biesheuvel wrote:
> On Wed, 30 Mar 2022 at 09:19, Matthew Garrett wrote:
> > From a conceptual perspective we've thought of the EFI stub as being
> > logically part of the bootloader rather than the early kernel, and the
> > bootloader is a point where
On Wed, 30 Mar 2022 at 09:27, Matthew Garrett wrote:
>
> On Wed, Mar 30, 2022 at 09:23:17AM +0200, Ard Biesheuvel wrote:
> > On Wed, 30 Mar 2022 at 09:19, Matthew Garrett wrote:
> > > From a conceptual perspective we've thought of the EFI stub as being
> > > logically part of the bootloader rathe
On Wed, 2022-03-30 at 09:39 +0200, Ard Biesheuvel wrote:
> On Wed, 30 Mar 2022 at 09:27, Matthew Garrett
> wrote:
> > On Wed, Mar 30, 2022 at 09:23:17AM +0200, Ard Biesheuvel wrote:
> > > On Wed, 30 Mar 2022 at 09:19, Matthew Garrett <
> > > mj...@srcf.ucam.org> wrote:
> > > > From a conceptual pe
Greetings Matthew,
First thank you to you and James for taking time out of your busy
schedules to sit down with us and work through all of this.
Hey Ard,
On 3/30/22 03:02, Ard Biesheuvel wrote:>> 1) From an EFI maintainer
perspective, is making the contract between
>> the boot stub and the kerne
