Re: [virtio-comment] [PATCH v1 1/8] admin: Add theory of operation for device migration

[Jason Wang <jasowang@redhat.com>]

On Fri, Nov 24, 2023 at 7:38âPM Michael S. Tsirkin <mst@redhat.com> wrote:
>
> On Fri, Nov 24, 2023 at 11:07:53AM +0800, Jason Wang wrote:
> > How TDISP/attestation is related to a specific device driver? How can
> > a legacy DPDK driver break things like attestation here?
> >
> > > Hence it is not applicable.
> >
> > Wow. The legacy tunnel was just invented by you for just several
> > months and soon became a second-class citizen in the proposal here?
>
> Legacy is not going to be a 1st class citizen and that was a
> concious decision the TC made.
> In particular we know straight
> away that there is no way to make them safely work
> while preserving assumptions confidential computing
> guests make (which I guess is what you mean here).

Probably, but I think we need to support its migration without TD.

> The whole point of isolating legacy mess in the special
> commands was so we don't try to support them going forward,
> don't try to add new features for legacy interfaces please.

Thanks


>
> --
> MST
>