On Wed, Jan 18, 2023, Huang, Kai wrote: > On Wed, 2022-12-14 at 13:39 -0600, Michael Roth wrote: > > diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c > > index 91352d692845..7f3e4d91c0c6 100644 > > --- a/arch/x86/kvm/svm/svm.c > > +++ b/arch/x86/kvm/svm/svm.c > > @@ -4694,6 +4694,14 @@ static int svm_vm_init(struct kvm *kvm) > > return 0; > > } > > > > +static int svm_private_mem_enabled(struct kvm *kvm) > > +{ > > + if (sev_guest(kvm)) > > + return kvm->arch.upm_mode ? 1 : 0; > > + > > + return IS_ENABLED(CONFIG_HAVE_KVM_PRIVATE_MEM_TESTING) ? 1 : 0; > > +} > > + > > Is this new callback really needed? Probably not. For anything in this series that gets within spitting distance of CONFIG_HAVE_KVM_PRIVATE_MEM_TESTING, my recommendation is to make a mental note but otherwise ignore things like this for now. I suspect it will be much, much more efficient to sort all of this out when I smush UPM+SNP+TDX together in a few weeks.