Re: [PATCHv7 00/14] mm, x86/cc: Implement support for unaccepted memory

Dave Hansen
2022-06-24T17:10:04Z

On 6/24/22 10:06, Marc Orr wrote:
> I think Peter's point is a little more nuanced than that. Once lazy
> accept goes into the guest firmware -- without the feature negotiation
> that Peter is suggesting -- cloud providers now have a bookkeeping
> problem. Which images have kernels that can boot from a guest firmware
> that doesn't pre-validate all the guest memory?

Hold on a sec though...

Is this a matter of

can boot from a guest firmware that doesn't pre-validate all the
guest memory?

or

can boot from a guest firmware that doesn't pre-validate all the
guest memory ... with access to all of that guest's RAM?

In other words, are we talking about "fails to boot" or "can't see all
the RAM"?