xen_feature
if (!xen_feature(XENFEAT_hvm_callback_vector)) {
if (xen_feature(XENFEAT_##n)) \
KASSERT(xen_feature(XENFEAT_auto_translated_physmap));
KASSERT(xen_feature(XENFEAT_auto_translated_physmap));
KASSERT(!xen_feature(XENFEAT_auto_translated_physmap));
KASSERT(xen_feature(XENFEAT_auto_translated_physmap));
if (xen_feature(XENFEAT_auto_translated_physmap)) {