On Thu, Feb 25, 2021 at 09:33:09PM +0100, Paolo Bonzini wrote:

On 25/02/21 19:18, Ashish Kalra wrote:

quoted

I do believe that some of these alternative SEV live migration support
or Migration helper (MH) solutions will still use SEV PSP migration for
migrating the MH itself, therefore the SEV live migration patches
(currently v10 posted upstream) still make sense and will be used.

I think that since the migration helper (at least for SEV, not -ES) is part
of the attested firmware, it can be started on the destination before the
rest of the VM.

We may also need to transport VMSA(s) securely using the PSP migration
support for SEV-ES live migration with MH.

Thanks,
Ashish