On 04/09/20 21:39, Andy Lutomirski wrote: > I'm a little concerned that it's actually too clever and that maybe a > more straightforward solution should be investigated. I personally > rather dislike the KVM model in which the guest address space mirrors > the host (QEMU) address space rather than being its own thing. In > particular, the current model means that extra-special-strange > mappings like SEV-encrypted memory are required to be present in the > QEMU page tables in order for the guest to see them. > > (If I had noticed that last bit before it went upstream, I would have > NAKked it. I would still like to see it deprecated and ideally > eventually removed from the kernel. We have absolutely no business > creating incoherent mappings like this.) NACK first and ask second, right Andy? I see that nothing has changed since Alan Cox left Linux. Paolo
