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. -- Kirill A. Shutemov
