On Wed, 5 Jul 2023 13:26:32 +0100 Daniel P. Berrangé <berrange@xxxxxxxxxx> wrote: [...] > > > I rather think mgmt apps need to explicitly opt-in to async teardown, > > > so they're aware that they need to take account of delayed RAM > > > availablity in their accounting / guest placement logic. > > > > what would you think about enabling it by default only for guests that > > are capable to run in Secure Execution mode? > > IIUC, that's basically /all/ guests if running on new enough hardware > with prot_virt=1 enabled on the host OS, so will still present challenges > to mgmt apps needing to be aware of this behaviour AFAICS. I think there is some fencing still? I don't think it's automatic > > > With regards, > Daniel