diff --git a/hw/s390x/s390-pci-bus.c b/hw/s390x/s390-pci-bus.c
index 77a50cab36..10da87458e 100644
--- a/hw/s390x/s390-pci-bus.c
+++ b/hw/s390x/s390-pci-bus.c
@@ -816,6 +816,11 @@ static void s390_pcihost_hot_plug(HotplugHandler *hotplug_dev,
         PCIBridge *pb = PCI_BRIDGE(dev);
         PCIDevice *pdev = PCI_DEVICE(dev);
 
+        if (pdev->cap_present & QEMU_PCI_CAP_MULTIFUNCTION) {
+            error_setg(errp, "multifunction not supported in s390");
+            return;
+        }
+
         pci_bridge_map_irq(pb, dev->id, s390_pci_map_irq);
         pci_setup_iommu(&pb->sec_bus, s390_pci_dma_iommu, s);
 
@@ -835,6 +840,11 @@ static void s390_pcihost_hot_plug(HotplugHandler *hotplug_dev,
     } else if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) {
         pdev = PCI_DEVICE(dev);
 
+        if (pdev->cap_present & QEMU_PCI_CAP_MULTIFUNCTION) {
+            error_setg(errp, "multifunction not supported in s390");
+            return;
+        }
+
         if (!dev->id) {
             /* In the case the PCI device does not define an id */
             /* we generate one based on the PCI address         */
diff --git a/target/s390x/cpu_features.h b/target/s390x/cpu_features.h
index e306aa7ab2..968b12fdfe 100644
--- a/target/s390x/cpu_features.h
+++ b/target/s390x/cpu_features.h
@@ -78,6 +78,7 @@ typedef enum {
     S390_FEAT_GROUP_MSA_EXT_6,
     S390_FEAT_GROUP_MSA_EXT_7,
     S390_FEAT_GROUP_MSA_EXT_8,
+    S390_FEAT_GROUP_MULTIPLE_EPOCH_PTFF,
     S390_FEAT_GROUP_MAX,
 } S390FeatGroup;