kvm_auth_eretax
bool kvm_auth_eretax(struct kvm_vcpu *vcpu, u64 *elr);
if (esr_iss_is_eretax(esr) && !kvm_auth_eretax(vcpu, &elr)) {
if (!(vcpu_has_ptrauth(vcpu) && kvm_auth_eretax(vcpu, &elr)))