Re: Potential project on implementing AMD SEV emulation in QEMU

Hi Tom,

On Thu, 17 Apr 2025 at 22:14, Tom Lendacky <[email protected]> wrote:
>
> On 4/17/25 10:26, Stefano Garzarella wrote:
> > Hi Tom,
>
> Hi Stefano,
>
> > yesterday in the Coconut-SVSM community call we talked about a
> > potential project with the University of Pisa to emulate AMD
> > SEV/SEV-ES/SEV-SNP support in QEMU.
> >
> > Joerg rightly suggested having a step-by-step approach, supporting SEV
> > initially, as supporting SEV-SNP directly might be too much for a
> > master's thesis (about 6 months of work).
> >
> > We wondered if you knew of any attempts already made in this regard,
>
> Nothing that I'm aware of.
>
> > but especially if you think it's a feasible thing.
>
> Anything is possible I guess, but I'm not sure what it would take to
> accomplish that. Attestation would tell you if you're on real hardware
> vs emulated hardware.

As I wrote to Dionna, I did not explain the ultimate goal well:
Test/develop SVSM and guest OS interaction without having the hardware in place.

So that's why IMO it's perfectly fine for attestation to be
unsuccessful, plus I don't think it's even necessary to implement any
encryption.

Thanks,
Stefano