Re: [PATCHv6 02/15] mm: Add support for unaccepted memory

[Gupta, Pankaj]

> On Thu, May 19, 2022 at 12:43:15PM +0200, Gupta, Pankaj wrote:
> > If both Intel TDX and AMD SEV-SNP requires the memory to be accepted before
> > it can be used by the guest. In what other use cases (apart from memory
> > hotplug), the lazy memory acceptance will be useful?
>
> It is nothing to do with hotplug.
>
> Any memory has to be accepted before it can be used inside the TDX or
> SEV-SNP guest. It can happen upfront, before kernel gets control (like by
> firmware) or by kernel. The idea is to accept small portion of the memory
> upfront and leave the rest to the kernel. The reason why delaying
> acceptance make sense is boot time. We want the guest to start doing
> useful stuff as fast as possible.

o.k. That answers my question. Thank you!

Best regards,
Pankaj