On Tue, Apr 23, 2024, Sean Christopherson wrote: > Oof, and doesn't SNP support effectively *require* version 2? I.e. shouldn't > the KVM patch[*] that adds support for the AP reset MSR protocol bump the version? > The GHCB spec very cleary states that that's v2+. Ah, the SNP series does bump the max version one patch later, presumably after all mandatory features for v2 are implemented.