diff --git a/hw/xen/xen_pt_config_init.c b/hw/xen/xen_pt_config_init.c
index bff0962795..4758514ddf 100644
--- a/hw/xen/xen_pt_config_init.c
+++ b/hw/xen/xen_pt_config_init.c
@@ -2032,12 +2032,16 @@ void xen_pt_config_init(XenPCIPassthroughState *s, Error **errp)
             }
         }
 
-        /*
-         * By default we will trap up to 0x40 in the cfg space.
-         * If an intel device is pass through we need to trap 0xfc,
-         * therefore the size should be 0xff.
-         */
         if (xen_pt_emu_reg_grps[i].grp_id == XEN_PCI_INTEL_OPREGION) {
+            if (!is_igd_vga_passthrough(&s->real_device) ||
+                s->real_device.vendor_id != PCI_VENDOR_ID_INTEL) {
+                continue;
+            }
+            /*
+             * By default we will trap up to 0x40 in the cfg space.
+             * If an intel device is pass through we need to trap 0xfc,
+             * therefore the size should be 0xff.
+             */
             reg_grp_offset = XEN_PCI_INTEL_OPREGION;
         }