diff --git a/hw/pci-host/q35.c b/hw/pci-host/q35.c
index d5a657a02a..f3e713318e 100644
--- a/hw/pci-host/q35.c
+++ b/hw/pci-host/q35.c
@@ -662,16 +662,6 @@ static void mch_realize(PCIDevice *d, Error **errp)
                                    OBJECT(&mch->smram));
 }
 
-uint64_t mch_mcfg_base(void)
-{
-    bool ambiguous;
-    Object *o = object_resolve_path_type("", TYPE_MCH_PCI_DEVICE, &ambiguous);
-    if (!o) {
-        return 0;
-    }
-    return MCH_HOST_BRIDGE_PCIEXBAR_DEFAULT;
-}
-
 static Property mch_props[] = {
     DEFINE_PROP_UINT16("extended-tseg-mbytes", MCHPCIState, ext_tseg_mbytes,
                        16),
diff --git a/include/hw/pci-host/q35.h b/include/hw/pci-host/q35.h
index 22fadfa3ed..ddafc3f2e3 100644
--- a/include/hw/pci-host/q35.h
+++ b/include/hw/pci-host/q35.h
@@ -181,8 +181,6 @@ struct Q35PCIHost {
 #define MCH_PCIE_DEV                           1
 #define MCH_PCIE_FUNC                          0
 
-uint64_t mch_mcfg_base(void);
-
 /*
  * Arbitrary but unique BNF number for IOAPIC device.
  *