diff --git a/src/conf/numa_conf.c b/src/conf/numa_conf.c
index 57da215aed..5c123b96b7 100644
--- a/src/conf/numa_conf.c
+++ b/src/conf/numa_conf.c
@@ -847,6 +847,23 @@ virDomainNumaGetCPUCountTotal(virDomainNumaPtr numa)
     return ret;
 }
 
+unsigned int
+virDomainNumaGetMaxCPUID(virDomainNumaPtr numa)
+{
+    size_t i;
+    unsigned int ret = 0;
+
+    for (i = 0; i < numa->nmem_nodes; i++) {
+        int bit;
+
+        bit = virBitmapLastSetBit(virDomainNumaGetNodeCpumask(numa, i));
+        if (bit > ret)
+            ret = bit;
+    }
+
+    return ret;
+}
+
 
 virDomainNumaPtr
 virDomainNumaNew(void)
diff --git a/src/conf/numa_conf.h b/src/conf/numa_conf.h
index 6739065339..90deacbd34 100644
--- a/src/conf/numa_conf.h
+++ b/src/conf/numa_conf.h
@@ -99,6 +99,9 @@ unsigned long long virDomainNumaGetNodeMemorySize(virDomainNumaPtr numa,
 unsigned long long virDomainNumaGetMemorySize(virDomainNumaPtr numa)
     ATTRIBUTE_NONNULL(1);
 
+unsigned int
+virDomainNumaGetMaxCPUID(virDomainNumaPtr numa);
+
 /*
  * Formatters
  */
diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index 5d320b7306..e5d8437adf 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -679,6 +679,7 @@ virNodeDeviceObjUnlock;
 virDomainNumaCheckABIStability;
 virDomainNumaEquals;
 virDomainNumaFree;
+virDomainNumaGetMaxCPUID;
 virDomainNumaGetMemorySize;
 virDomainNumaGetNodeCount;
 virDomainNumaGetNodeCpumask;