On Tue, Apr 16, 2024, Paolo Bonzini wrote: > SEV-SNP defines PFERR_GUEST_ENC_MASK (bit 34) in page-fault error bits to > represent the guest page is encrypted. Use the bit to designate that the > page fault is private and that it requires looking up memory attributes. > > The vendor kvm page fault handler should set PFERR_GUEST_ENC_MASK bit based > on their fault information. It may or may not use the hardware value > directly or parse the hardware value to set the bit. > > Based on a patch by Isaku Yamahata. > > Signed-off-by: Paolo Bonzini <pbonzini@xxxxxxxxxx> I would also prefer this one be dropped in favor of PFERR_PRIVATE_ACCESS. Ah, I assume that's your plan, as you have d8783aeebd40 ("[TO SQUASH] KVM: x86/mmu: Use synthetic page fault error code to indicate private faults") in kvm-coco-queue.