On Tue, May 30, 2023 at 02:16:55PM +0200, Gupta, Pankaj wrote: > > > > Add a #HV exception handler that uses IST stack. > > > > > > > Urgh.. that is entirely insufficient. Like it doesn't even begin to > > start to cover things. > > > > The whole existing VC IST stack abuse is already a nightmare and you're > > duplicating that.. without any explanation for why this would be needed > > and how it is correct. > > > > Please try again. > > #HV handler handles both #NMI & #MCE in the guest and nested #HV is never > raised by the hypervisor. I thought all this confidental computing nonsense was about not trusting the hypervisor, so how come we're now relying on the hypervisor being sane?