diff --git a/hw/sparc64/sun4u.c b/hw/sparc64/sun4u.c
index eae7589462..e2858a0331 100644
--- a/hw/sparc64/sun4u.c
+++ b/hw/sparc64/sun4u.c
@@ -553,6 +553,7 @@ static void sun4uv_init(MemoryRegion *address_space_mem,
                         MachineState *machine,
                         const struct hwdef *hwdef)
 {
+    MachineClass *mc = MACHINE_GET_CLASS(machine);
     SPARCCPU *cpu;
     Nvram *nvram;
     unsigned int i;
@@ -645,15 +646,15 @@ static void sun4uv_init(MemoryRegion *address_space_mem,
         PCIBus *bus;
         nd = &nd_table[i];
 
-        if (!nd->model || strcmp(nd->model, "sunhme") == 0) {
+        if (!nd->model || strcmp(nd->model, mc->default_nic) == 0) {
             if (!onboard_nic) {
                 pci_dev = pci_new_multifunction(PCI_DEVFN(1, 1),
-                                                   true, "sunhme");
+                                                   true, mc->default_nic);
                 bus = pci_busA;
                 memcpy(&macaddr, &nd->macaddr.a, sizeof(MACAddr));
                 onboard_nic = true;
             } else {
-                pci_dev = pci_new(-1, "sunhme");
+                pci_dev = pci_new(-1, mc->default_nic);
                 bus = pci_busB;
             }
         } else {
@@ -816,6 +817,8 @@ static void sun4u_class_init(ObjectClass *oc, void *data)
     mc->default_cpu_type = SPARC_CPU_TYPE_NAME("TI-UltraSparc-IIi");
     mc->ignore_boot_device_suffixes = true;
     mc->default_display = "std";
+    mc->default_nic = "sunhme";
+    mc->no_parallel = !module_object_class_by_name(TYPE_ISA_PARALLEL);
     fwc->get_dev_path = sun4u_fw_dev_path;
 }
 
@@ -840,6 +843,8 @@ static void sun4v_class_init(ObjectClass *oc, void *data)
     mc->default_boot_order = "c";
     mc->default_cpu_type = SPARC_CPU_TYPE_NAME("Sun-UltraSparc-T1");
     mc->default_display = "std";
+    mc->default_nic = "sunhme";
+    mc->no_parallel = !module_object_class_by_name(TYPE_ISA_PARALLEL);
 }
 
 static const TypeInfo sun4v_type = {