diff --git a/src/conf/capabilities.c b/src/conf/capabilities.c
index 32badee7b3..02298e40a3 100644
--- a/src/conf/capabilities.c
+++ b/src/conf/capabilities.c
@@ -811,9 +811,10 @@ virCapsHostNUMACellCPUFormat(virBuffer *buf,
                 return -1;
 
             virBufferAsprintf(&childBuf,
-                              " socket_id='%d' die_id='%d' core_id='%d' siblings='%s'",
+                              " socket_id='%d' die_id='%d' cluster_id='%d' core_id='%d' siblings='%s'",
                               cpus[j].socket_id,
                               cpus[j].die_id,
+                              cpus[j].cluster_id,
                               cpus[j].core_id,
                               siblings);
         }
@@ -1453,6 +1454,7 @@ virCapabilitiesFillCPUInfo(int cpu_id G_GNUC_UNUSED,
 
     if (virHostCPUGetSocket(cpu_id, &cpu->socket_id) < 0 ||
         virHostCPUGetDie(cpu_id, &cpu->die_id) < 0 ||
+        virHostCPUGetCluster(cpu_id, &cpu->cluster_id) < 0 ||
         virHostCPUGetCore(cpu_id, &cpu->core_id) < 0)
         return -1;
 
@@ -1712,6 +1714,7 @@ virCapabilitiesHostNUMAInitFake(virCapsHostNUMA *caps)
                     if (tmp) {
                         cpus[cid].id = id;
                         cpus[cid].die_id = 0;
+                        cpus[cid].cluster_id = 0;
                         cpus[cid].socket_id = s;
                         cpus[cid].core_id = c;
                         cpus[cid].siblings = virBitmapNewCopy(siblings);
diff --git a/src/conf/capabilities.h b/src/conf/capabilities.h
index 9eaf6e2807..52e395de14 100644
--- a/src/conf/capabilities.h
+++ b/src/conf/capabilities.h
@@ -89,6 +89,7 @@ struct _virCapsHostNUMACellCPU {
     unsigned int id;
     unsigned int socket_id;
     unsigned int die_id;
+    unsigned int cluster_id;
     unsigned int core_id;
     virBitmap *siblings;
 };
diff --git a/src/conf/schemas/capability.rng b/src/conf/schemas/capability.rng
index b1968df258..a1606941e7 100644
--- a/src/conf/schemas/capability.rng
+++ b/src/conf/schemas/capability.rng
@@ -201,6 +201,9 @@
         <attribute name="die_id">
           <ref name="unsignedInt"/>
         </attribute>
+        <attribute name="cluster_id">
+          <ref name="unsignedInt"/>
+        </attribute>
         <attribute name="core_id">
           <ref name="unsignedInt"/>
         </attribute>
diff --git a/src/libvirt_linux.syms b/src/libvirt_linux.syms
index 55649ae39c..004cbfee97 100644
--- a/src/libvirt_linux.syms
+++ b/src/libvirt_linux.syms
@@ -3,6 +3,7 @@
 #
 
 # util/virhostcpu.h
+virHostCPUGetCluster;
 virHostCPUGetCore;
 virHostCPUGetDie;
 virHostCPUGetInfoPopulateLinux;
diff --git a/src/util/virhostcpu.c b/src/util/virhostcpu.c
index 4027547e1e..a3781ca870 100644
--- a/src/util/virhostcpu.c
+++ b/src/util/virhostcpu.c
@@ -232,6 +232,28 @@ virHostCPUGetDie(unsigned int cpu, unsigned int *die)
     return 0;
 }
 
+int
+virHostCPUGetCluster(unsigned int cpu, unsigned int *cluster)
+{
+    int cluster_id;
+    int ret = virFileReadValueInt(&cluster_id,
+                                  "%s/cpu/cpu%u/topology/cluster_id",
+                                  SYSFS_SYSTEM_PATH, cpu);
+
+    if (ret == -1)
+        return -1;
+
+    /* If the file doesn't exists (old kernel) or the value contained
+     * in it is -1 (architecture without CPU clusters), report 0 to
+     * indicate the lack of information */
+    if (ret == -2 || cluster_id < 0)
+        cluster_id = 0;
+
+    *cluster = cluster_id;
+
+    return 0;
+}
+
 int
 virHostCPUGetCore(unsigned int cpu, unsigned int *core)
 {
diff --git a/src/util/virhostcpu.h b/src/util/virhostcpu.h
index 5f0d43e069..d7e09bff22 100644
--- a/src/util/virhostcpu.h
+++ b/src/util/virhostcpu.h
@@ -68,6 +68,7 @@ int virHostCPUStatsAssign(virNodeCPUStatsPtr param,
 #ifdef __linux__
 int virHostCPUGetSocket(unsigned int cpu, unsigned int *socket);
 int virHostCPUGetDie(unsigned int cpu, unsigned int *die);
+int virHostCPUGetCluster(unsigned int cpu, unsigned int *cluster);
 int virHostCPUGetCore(unsigned int cpu, unsigned int *core);
 
 virBitmap *virHostCPUGetSiblingsList(unsigned int cpu);
diff --git a/tests/capabilityschemadata/caps-qemu-kvm.xml b/tests/capabilityschemadata/caps-qemu-kvm.xml
index acdbb362cc..317fa0885f 100644
--- a/tests/capabilityschemadata/caps-qemu-kvm.xml
+++ b/tests/capabilityschemadata/caps-qemu-kvm.xml
@@ -64,14 +64,14 @@
             <sibling id='1' value='21'/>
           </distances>
           <cpus num='8'>
-            <cpu id='0' socket_id='0' die_id='0' core_id='0' siblings='0'/>
-            <cpu id='2' socket_id='0' die_id='0' core_id='1' siblings='2'/>
-            <cpu id='4' socket_id='0' die_id='0' core_id='2' siblings='4'/>
-            <cpu id='6' socket_id='0' die_id='0' core_id='3' siblings='6'/>
-            <cpu id='8' socket_id='0' die_id='0' core_id='4' siblings='8'/>
-            <cpu id='10' socket_id='0' die_id='0' core_id='5' siblings='10'/>
-            <cpu id='12' socket_id='0' die_id='0' core_id='6' siblings='12'/>
-            <cpu id='14' socket_id='0' die_id='0' core_id='7' siblings='14'/>
+            <cpu id='0' socket_id='0' die_id='0' cluster_id='0' core_id='0' siblings='0'/>
+            <cpu id='2' socket_id='0' die_id='0' cluster_id='0' core_id='1' siblings='2'/>
+            <cpu id='4' socket_id='0' die_id='0' cluster_id='0' core_id='2' siblings='4'/>
+            <cpu id='6' socket_id='0' die_id='0' cluster_id='0' core_id='3' siblings='6'/>
+            <cpu id='8' socket_id='0' die_id='0' cluster_id='0' core_id='4' siblings='8'/>
+            <cpu id='10' socket_id='0' die_id='0' cluster_id='0' core_id='5' siblings='10'/>
+            <cpu id='12' socket_id='0' die_id='0' cluster_id='0' core_id='6' siblings='12'/>
+            <cpu id='14' socket_id='0' die_id='0' cluster_id='0' core_id='7' siblings='14'/>
           </cpus>
         </cell>
         <cell id='1'>
@@ -84,14 +84,14 @@
             <sibling id='1' value='10'/>
           </distances>
           <cpus num='8'>
-            <cpu id='1' socket_id='1' die_id='0' core_id='0' siblings='1'/>
-            <cpu id='3' socket_id='1' die_id='0' core_id='1' siblings='3'/>
-            <cpu id='5' socket_id='1' die_id='0' core_id='2' siblings='5'/>
-            <cpu id='7' socket_id='1' die_id='0' core_id='3' siblings='7'/>
-            <cpu id='9' socket_id='1' die_id='0' core_id='4' siblings='9'/>
-            <cpu id='11' socket_id='1' die_id='0' core_id='5' siblings='11'/>
-            <cpu id='13' socket_id='1' die_id='0' core_id='6' siblings='13'/>
-            <cpu id='15' socket_id='1' die_id='0' core_id='7' siblings='15'/>
+            <cpu id='1' socket_id='1' die_id='0' cluster_id='0' core_id='0' siblings='1'/>
+            <cpu id='3' socket_id='1' die_id='0' cluster_id='0' core_id='1' siblings='3'/>
+            <cpu id='5' socket_id='1' die_id='0' cluster_id='0' core_id='2' siblings='5'/>
+            <cpu id='7' socket_id='1' die_id='0' cluster_id='0' core_id='3' siblings='7'/>
+            <cpu id='9' socket_id='1' die_id='0' cluster_id='0' core_id='4' siblings='9'/>
+            <cpu id='11' socket_id='1' die_id='0' cluster_id='0' core_id='5' siblings='11'/>
+            <cpu id='13' socket_id='1' die_id='0' cluster_id='0' core_id='6' siblings='13'/>
+            <cpu id='15' socket_id='1' die_id='0' cluster_id='0' core_id='7' siblings='15'/>
           </cpus>
         </cell>
       </cells>
diff --git a/tests/vircaps2xmldata/vircaps-aarch64-basic-clusters.xml b/tests/vircaps2xmldata/vircaps-aarch64-basic-clusters.xml
index fe61fc42cc..b37c8e7a20 100644
--- a/tests/vircaps2xmldata/vircaps-aarch64-basic-clusters.xml
+++ b/tests/vircaps2xmldata/vircaps-aarch64-basic-clusters.xml
@@ -14,10 +14,10 @@
           <pages unit='KiB' size='2048'>4096</pages>
           <pages unit='KiB' size='1048576'>6144</pages>
           <cpus num='4'>
-            <cpu id='0' socket_id='36' die_id='0' core_id='0' siblings='0-1'/>
-            <cpu id='1' socket_id='36' die_id='0' core_id='0' siblings='0-1'/>
-            <cpu id='2' socket_id='36' die_id='0' core_id='1' siblings='2-3'/>
-            <cpu id='3' socket_id='36' die_id='0' core_id='1' siblings='2-3'/>
+            <cpu id='0' socket_id='36' die_id='0' cluster_id='0' core_id='0' siblings='0-1'/>
+            <cpu id='1' socket_id='36' die_id='0' cluster_id='0' core_id='0' siblings='0-1'/>
+            <cpu id='2' socket_id='36' die_id='0' cluster_id='1' core_id='1' siblings='2-3'/>
+            <cpu id='3' socket_id='36' die_id='0' cluster_id='1' core_id='1' siblings='2-3'/>
           </cpus>
         </cell>
         <cell id='1'>
@@ -26,10 +26,10 @@
           <pages unit='KiB' size='2048'>6144</pages>
           <pages unit='KiB' size='1048576'>8192</pages>
           <cpus num='4'>
-            <cpu id='4' socket_id='3180' die_id='0' core_id='256' siblings='4-5'/>
-            <cpu id='5' socket_id='3180' die_id='0' core_id='256' siblings='4-5'/>
-            <cpu id='6' socket_id='3180' die_id='0' core_id='257' siblings='6-7'/>
-            <cpu id='7' socket_id='3180' die_id='0' core_id='257' siblings='6-7'/>
+            <cpu id='4' socket_id='3180' die_id='0' cluster_id='256' core_id='256' siblings='4-5'/>
+            <cpu id='5' socket_id='3180' die_id='0' cluster_id='256' core_id='256' siblings='4-5'/>
+            <cpu id='6' socket_id='3180' die_id='0' cluster_id='257' core_id='257' siblings='6-7'/>
+            <cpu id='7' socket_id='3180' die_id='0' cluster_id='257' core_id='257' siblings='6-7'/>
           </cpus>
         </cell>
       </cells>
diff --git a/tests/vircaps2xmldata/vircaps-aarch64-basic.xml b/tests/vircaps2xmldata/vircaps-aarch64-basic.xml
index 0a04052c40..5533ae0586 100644
--- a/tests/vircaps2xmldata/vircaps-aarch64-basic.xml
+++ b/tests/vircaps2xmldata/vircaps-aarch64-basic.xml
@@ -16,10 +16,10 @@
           <pages unit='KiB' size='2048'>4096</pages>
           <pages unit='KiB' size='1048576'>6144</pages>
           <cpus num='4'>
-            <cpu id='0' socket_id='0' die_id='0' core_id='0' siblings='0'/>
-            <cpu id='1' socket_id='0' die_id='0' core_id='1' siblings='1'/>
-            <cpu id='2' socket_id='0' die_id='0' core_id='2' siblings='2'/>
-            <cpu id='3' socket_id='0' die_id='0' core_id='3' siblings='3'/>
+            <cpu id='0' socket_id='0' die_id='0' cluster_id='0' core_id='0' siblings='0'/>
+            <cpu id='1' socket_id='0' die_id='0' cluster_id='0' core_id='1' siblings='1'/>
+            <cpu id='2' socket_id='0' die_id='0' cluster_id='0' core_id='2' siblings='2'/>
+            <cpu id='3' socket_id='0' die_id='0' cluster_id='0' core_id='3' siblings='3'/>
           </cpus>
         </cell>
         <cell id='1'>
@@ -28,10 +28,10 @@
           <pages unit='KiB' size='2048'>6144</pages>
           <pages unit='KiB' size='1048576'>8192</pages>
           <cpus num='4'>
-            <cpu id='4' socket_id='1' die_id='0' core_id='4' siblings='4'/>
-            <cpu id='5' socket_id='1' die_id='0' core_id='5' siblings='5'/>
-            <cpu id='6' socket_id='1' die_id='0' core_id='6' siblings='6'/>
-            <cpu id='7' socket_id='1' die_id='0' core_id='7' siblings='7'/>
+            <cpu id='4' socket_id='1' die_id='0' cluster_id='0' core_id='4' siblings='4'/>
+            <cpu id='5' socket_id='1' die_id='0' cluster_id='0' core_id='5' siblings='5'/>
+            <cpu id='6' socket_id='1' die_id='0' cluster_id='0' core_id='6' siblings='6'/>
+            <cpu id='7' socket_id='1' die_id='0' cluster_id='0' core_id='7' siblings='7'/>
           </cpus>
         </cell>
         <cell id='2'>
@@ -40,10 +40,10 @@
           <pages unit='KiB' size='2048'>8192</pages>
           <pages unit='KiB' size='1048576'>10240</pages>
           <cpus num='4'>
-            <cpu id='8' socket_id='2' die_id='0' core_id='8' siblings='8'/>
-            <cpu id='9' socket_id='2' die_id='0' core_id='9' siblings='9'/>
-            <cpu id='10' socket_id='2' die_id='0' core_id='10' siblings='10'/>
-            <cpu id='11' socket_id='2' die_id='0' core_id='11' siblings='11'/>
+            <cpu id='8' socket_id='2' die_id='0' cluster_id='0' core_id='8' siblings='8'/>
+            <cpu id='9' socket_id='2' die_id='0' cluster_id='0' core_id='9' siblings='9'/>
+            <cpu id='10' socket_id='2' die_id='0' cluster_id='0' core_id='10' siblings='10'/>
+            <cpu id='11' socket_id='2' die_id='0' cluster_id='0' core_id='11' siblings='11'/>
           </cpus>
         </cell>
         <cell id='3'>
@@ -52,10 +52,10 @@
           <pages unit='KiB' size='2048'>10240</pages>
           <pages unit='KiB' size='1048576'>12288</pages>
           <cpus num='4'>
-            <cpu id='12' socket_id='3' die_id='0' core_id='12' siblings='12'/>
-            <cpu id='13' socket_id='3' die_id='0' core_id='13' siblings='13'/>
-            <cpu id='14' socket_id='3' die_id='0' core_id='14' siblings='14'/>
-            <cpu id='15' socket_id='3' die_id='0' core_id='15' siblings='15'/>
+            <cpu id='12' socket_id='3' die_id='0' cluster_id='0' core_id='12' siblings='12'/>
+            <cpu id='13' socket_id='3' die_id='0' cluster_id='0' core_id='13' siblings='13'/>
+            <cpu id='14' socket_id='3' die_id='0' cluster_id='0' core_id='14' siblings='14'/>
+            <cpu id='15' socket_id='3' die_id='0' cluster_id='0' core_id='15' siblings='15'/>
           </cpus>
         </cell>
       </cells>
diff --git a/tests/vircaps2xmldata/vircaps-x86_64-basic-dies.xml b/tests/vircaps2xmldata/vircaps-x86_64-basic-dies.xml
index 8a3ca2d13c..c86dc4defc 100644
--- a/tests/vircaps2xmldata/vircaps-x86_64-basic-dies.xml
+++ b/tests/vircaps2xmldata/vircaps-x86_64-basic-dies.xml
@@ -14,18 +14,18 @@
           <pages unit='KiB' size='2048'>4096</pages>
           <pages unit='KiB' size='1048576'>6144</pages>
           <cpus num='12'>
-            <cpu id='0' socket_id='0' die_id='0' core_id='0' siblings='0'/>
-            <cpu id='1' socket_id='0' die_id='0' core_id='1' siblings='1'/>
-            <cpu id='2' socket_id='0' die_id='1' core_id='0' siblings='2'/>
-            <cpu id='3' socket_id='0' die_id='1' core_id='1' siblings='3'/>
-            <cpu id='4' socket_id='0' die_id='2' core_id='0' siblings='4'/>
-            <cpu id='5' socket_id='0' die_id='2' core_id='1' siblings='5'/>
-            <cpu id='6' socket_id='1' die_id='0' core_id='0' siblings='6'/>
-            <cpu id='7' socket_id='1' die_id='0' core_id='1' siblings='7'/>
-            <cpu id='8' socket_id='1' die_id='1' core_id='0' siblings='8'/>
-            <cpu id='9' socket_id='1' die_id='1' core_id='1' siblings='9'/>
-            <cpu id='10' socket_id='1' die_id='2' core_id='0' siblings='10'/>
-            <cpu id='11' socket_id='1' die_id='2' core_id='1' siblings='11'/>
+            <cpu id='0' socket_id='0' die_id='0' cluster_id='0' core_id='0' siblings='0'/>
+            <cpu id='1' socket_id='0' die_id='0' cluster_id='0' core_id='1' siblings='1'/>
+            <cpu id='2' socket_id='0' die_id='1' cluster_id='0' core_id='0' siblings='2'/>
+            <cpu id='3' socket_id='0' die_id='1' cluster_id='0' core_id='1' siblings='3'/>
+            <cpu id='4' socket_id='0' die_id='2' cluster_id='0' core_id='0' siblings='4'/>
+            <cpu id='5' socket_id='0' die_id='2' cluster_id='0' core_id='1' siblings='5'/>
+            <cpu id='6' socket_id='1' die_id='0' cluster_id='0' core_id='0' siblings='6'/>
+            <cpu id='7' socket_id='1' die_id='0' cluster_id='0' core_id='1' siblings='7'/>
+            <cpu id='8' socket_id='1' die_id='1' cluster_id='0' core_id='0' siblings='8'/>
+            <cpu id='9' socket_id='1' die_id='1' cluster_id='0' core_id='1' siblings='9'/>
+            <cpu id='10' socket_id='1' die_id='2' cluster_id='0' core_id='0' siblings='10'/>
+            <cpu id='11' socket_id='1' die_id='2' cluster_id='0' core_id='1' siblings='11'/>
           </cpus>
         </cell>
       </cells>
diff --git a/tests/vircaps2xmldata/vircaps-x86_64-basic.xml b/tests/vircaps2xmldata/vircaps-x86_64-basic.xml
index 4da09f889c..9ae155d571 100644
--- a/tests/vircaps2xmldata/vircaps-x86_64-basic.xml
+++ b/tests/vircaps2xmldata/vircaps-x86_64-basic.xml
@@ -14,10 +14,10 @@
           <pages unit='KiB' size='2048'>4096</pages>
           <pages unit='KiB' size='1048576'>6144</pages>
           <cpus num='4'>
-            <cpu id='0' socket_id='0' die_id='0' core_id='0' siblings='0'/>
-            <cpu id='1' socket_id='0' die_id='0' core_id='1' siblings='1'/>
-            <cpu id='2' socket_id='0' die_id='0' core_id='2' siblings='2'/>
-            <cpu id='3' socket_id='0' die_id='0' core_id='3' siblings='3'/>
+            <cpu id='0' socket_id='0' die_id='0' cluster_id='0' core_id='0' siblings='0'/>
+            <cpu id='1' socket_id='0' die_id='0' cluster_id='0' core_id='1' siblings='1'/>
+            <cpu id='2' socket_id='0' die_id='0' cluster_id='0' core_id='2' siblings='2'/>
+            <cpu id='3' socket_id='0' die_id='0' cluster_id='0' core_id='3' siblings='3'/>
           </cpus>
         </cell>
         <cell id='1'>
@@ -26,10 +26,10 @@
           <pages unit='KiB' size='2048'>6144</pages>
           <pages unit='KiB' size='1048576'>8192</pages>
           <cpus num='4'>
-            <cpu id='4' socket_id='1' die_id='0' core_id='4' siblings='4'/>
-            <cpu id='5' socket_id='1' die_id='0' core_id='5' siblings='5'/>
-            <cpu id='6' socket_id='1' die_id='0' core_id='6' siblings='6'/>
-            <cpu id='7' socket_id='1' die_id='0' core_id='7' siblings='7'/>
+            <cpu id='4' socket_id='1' die_id='0' cluster_id='0' core_id='4' siblings='4'/>
+            <cpu id='5' socket_id='1' die_id='0' cluster_id='0' core_id='5' siblings='5'/>
+            <cpu id='6' socket_id='1' die_id='0' cluster_id='0' core_id='6' siblings='6'/>
+            <cpu id='7' socket_id='1' die_id='0' cluster_id='0' core_id='7' siblings='7'/>
           </cpus>
         </cell>
         <cell id='2'>
@@ -38,10 +38,10 @@
           <pages unit='KiB' size='2048'>8192</pages>
           <pages unit='KiB' size='1048576'>10240</pages>
           <cpus num='4'>
-            <cpu id='8' socket_id='2' die_id='0' core_id='8' siblings='8'/>
-            <cpu id='9' socket_id='2' die_id='0' core_id='9' siblings='9'/>
-            <cpu id='10' socket_id='2' die_id='0' core_id='10' siblings='10'/>
-            <cpu id='11' socket_id='2' die_id='0' core_id='11' siblings='11'/>
+            <cpu id='8' socket_id='2' die_id='0' cluster_id='0' core_id='8' siblings='8'/>
+            <cpu id='9' socket_id='2' die_id='0' cluster_id='0' core_id='9' siblings='9'/>
+            <cpu id='10' socket_id='2' die_id='0' cluster_id='0' core_id='10' siblings='10'/>
+            <cpu id='11' socket_id='2' die_id='0' cluster_id='0' core_id='11' siblings='11'/>
           </cpus>
         </cell>
         <cell id='3'>
@@ -50,10 +50,10 @@
           <pages unit='KiB' size='2048'>10240</pages>
           <pages unit='KiB' size='1048576'>12288</pages>
           <cpus num='4'>
-            <cpu id='12' socket_id='3' die_id='0' core_id='12' siblings='12'/>
-            <cpu id='13' socket_id='3' die_id='0' core_id='13' siblings='13'/>
-            <cpu id='14' socket_id='3' die_id='0' core_id='14' siblings='14'/>
-            <cpu id='15' socket_id='3' die_id='0' core_id='15' siblings='15'/>
+            <cpu id='12' socket_id='3' die_id='0' cluster_id='0' core_id='12' siblings='12'/>
+            <cpu id='13' socket_id='3' die_id='0' cluster_id='0' core_id='13' siblings='13'/>
+            <cpu id='14' socket_id='3' die_id='0' cluster_id='0' core_id='14' siblings='14'/>
+            <cpu id='15' socket_id='3' die_id='0' cluster_id='0' core_id='15' siblings='15'/>
           </cpus>
         </cell>
       </cells>
diff --git a/tests/vircaps2xmldata/vircaps-x86_64-caches.xml b/tests/vircaps2xmldata/vircaps-x86_64-caches.xml
index 28f00c0a90..05b33147b7 100644
--- a/tests/vircaps2xmldata/vircaps-x86_64-caches.xml
+++ b/tests/vircaps2xmldata/vircaps-x86_64-caches.xml
@@ -17,14 +17,14 @@
           <pages unit='KiB' size='2048'>4096</pages>
           <pages unit='KiB' size='1048576'>6144</pages>
           <cpus num='8'>
-            <cpu id='0' socket_id='0' die_id='0' core_id='0' siblings='0,4'/>
-            <cpu id='1' socket_id='0' die_id='0' core_id='1' siblings='1,5'/>
-            <cpu id='2' socket_id='0' die_id='0' core_id='2' siblings='2,6'/>
-            <cpu id='3' socket_id='0' die_id='0' core_id='3' siblings='3,7'/>
-            <cpu id='4' socket_id='0' die_id='0' core_id='0' siblings='0,4'/>
-            <cpu id='5' socket_id='0' die_id='0' core_id='1' siblings='1,5'/>
-            <cpu id='6' socket_id='0' die_id='0' core_id='2' siblings='2,6'/>
-            <cpu id='7' socket_id='0' die_id='0' core_id='3' siblings='3,7'/>
+            <cpu id='0' socket_id='0' die_id='0' cluster_id='0' core_id='0' siblings='0,4'/>
+            <cpu id='1' socket_id='0' die_id='0' cluster_id='0' core_id='1' siblings='1,5'/>
+            <cpu id='2' socket_id='0' die_id='0' cluster_id='0' core_id='2' siblings='2,6'/>
+            <cpu id='3' socket_id='0' die_id='0' cluster_id='0' core_id='3' siblings='3,7'/>
+            <cpu id='4' socket_id='0' die_id='0' cluster_id='0' core_id='0' siblings='0,4'/>
+            <cpu id='5' socket_id='0' die_id='0' cluster_id='0' core_id='1' siblings='1,5'/>
+            <cpu id='6' socket_id='0' die_id='0' cluster_id='0' core_id='2' siblings='2,6'/>
+            <cpu id='7' socket_id='0' die_id='0' cluster_id='0' core_id='3' siblings='3,7'/>
           </cpus>
         </cell>
       </cells>
diff --git a/tests/vircaps2xmldata/vircaps-x86_64-hmat.xml b/tests/vircaps2xmldata/vircaps-x86_64-hmat.xml
index 6fe5751666..2b97354bf3 100644
--- a/tests/vircaps2xmldata/vircaps-x86_64-hmat.xml
+++ b/tests/vircaps2xmldata/vircaps-x86_64-hmat.xml
@@ -25,30 +25,30 @@
             <line value='16' unit='B'/>
           </cache>
           <cpus num='24'>
-            <cpu id='0' socket_id='0' die_id='0' core_id='0' siblings='0'/>
-            <cpu id='1' socket_id='1' die_id='0' core_id='0' siblings='1'/>
-            <cpu id='2' socket_id='2' die_id='0' core_id='0' siblings='2'/>
-            <cpu id='3' socket_id='3' die_id='0' core_id='0' siblings='3'/>
-            <cpu id='4' socket_id='4' die_id='0' core_id='0' siblings='4'/>
-            <cpu id='5' socket_id='5' die_id='0' core_id='0' siblings='5'/>
-            <cpu id='6' socket_id='6' die_id='0' core_id='0' siblings='6'/>
-            <cpu id='7' socket_id='7' die_id='0' core_id='0' siblings='7'/>
-            <cpu id='8' socket_id='8' die_id='0' core_id='0' siblings='8'/>
-            <cpu id='9' socket_id='9' die_id='0' core_id='0' siblings='9'/>
-            <cpu id='10' socket_id='10' die_id='0' core_id='0' siblings='10'/>
-            <cpu id='11' socket_id='11' die_id='0' core_id='0' siblings='11'/>
-            <cpu id='12' socket_id='12' die_id='0' core_id='0' siblings='12'/>
-            <cpu id='13' socket_id='13' die_id='0' core_id='0' siblings='13'/>
-            <cpu id='14' socket_id='14' die_id='0' core_id='0' siblings='14'/>
-            <cpu id='15' socket_id='15' die_id='0' core_id='0' siblings='15'/>
-            <cpu id='16' socket_id='16' die_id='0' core_id='0' siblings='16'/>
-            <cpu id='17' socket_id='17' die_id='0' core_id='0' siblings='17'/>
-            <cpu id='18' socket_id='18' die_id='0' core_id='0' siblings='18'/>
-            <cpu id='19' socket_id='19' die_id='0' core_id='0' siblings='19'/>
-            <cpu id='20' socket_id='20' die_id='0' core_id='0' siblings='20'/>
-            <cpu id='21' socket_id='21' die_id='0' core_id='0' siblings='21'/>
-            <cpu id='22' socket_id='22' die_id='0' core_id='0' siblings='22'/>
-            <cpu id='23' socket_id='23' die_id='0' core_id='0' siblings='23'/>
+            <cpu id='0' socket_id='0' die_id='0' cluster_id='0' core_id='0' siblings='0'/>
+            <cpu id='1' socket_id='1' die_id='0' cluster_id='0' core_id='0' siblings='1'/>
+            <cpu id='2' socket_id='2' die_id='0' cluster_id='0' core_id='0' siblings='2'/>
+            <cpu id='3' socket_id='3' die_id='0' cluster_id='0' core_id='0' siblings='3'/>
+            <cpu id='4' socket_id='4' die_id='0' cluster_id='0' core_id='0' siblings='4'/>
+            <cpu id='5' socket_id='5' die_id='0' cluster_id='0' core_id='0' siblings='5'/>
+            <cpu id='6' socket_id='6' die_id='0' cluster_id='0' core_id='0' siblings='6'/>
+            <cpu id='7' socket_id='7' die_id='0' cluster_id='0' core_id='0' siblings='7'/>
+            <cpu id='8' socket_id='8' die_id='0' cluster_id='0' core_id='0' siblings='8'/>
+            <cpu id='9' socket_id='9' die_id='0' cluster_id='0' core_id='0' siblings='9'/>
+            <cpu id='10' socket_id='10' die_id='0' cluster_id='0' core_id='0' siblings='10'/>
+            <cpu id='11' socket_id='11' die_id='0' cluster_id='0' core_id='0' siblings='11'/>
+            <cpu id='12' socket_id='12' die_id='0' cluster_id='0' core_id='0' siblings='12'/>
+            <cpu id='13' socket_id='13' die_id='0' cluster_id='0' core_id='0' siblings='13'/>
+            <cpu id='14' socket_id='14' die_id='0' cluster_id='0' core_id='0' siblings='14'/>
+            <cpu id='15' socket_id='15' die_id='0' cluster_id='0' core_id='0' siblings='15'/>
+            <cpu id='16' socket_id='16' die_id='0' cluster_id='0' core_id='0' siblings='16'/>
+            <cpu id='17' socket_id='17' die_id='0' cluster_id='0' core_id='0' siblings='17'/>
+            <cpu id='18' socket_id='18' die_id='0' cluster_id='0' core_id='0' siblings='18'/>
+            <cpu id='19' socket_id='19' die_id='0' cluster_id='0' core_id='0' siblings='19'/>
+            <cpu id='20' socket_id='20' die_id='0' cluster_id='0' core_id='0' siblings='20'/>
+            <cpu id='21' socket_id='21' die_id='0' cluster_id='0' core_id='0' siblings='21'/>
+            <cpu id='22' socket_id='22' die_id='0' cluster_id='0' core_id='0' siblings='22'/>
+            <cpu id='23' socket_id='23' die_id='0' cluster_id='0' core_id='0' siblings='23'/>
           </cpus>
         </cell>
         <cell id='1'>
diff --git a/tests/vircaps2xmldata/vircaps-x86_64-resctrl-cdp.xml b/tests/vircaps2xmldata/vircaps-x86_64-resctrl-cdp.xml
index ee26fe9464..167b217d8e 100644
--- a/tests/vircaps2xmldata/vircaps-x86_64-resctrl-cdp.xml
+++ b/tests/vircaps2xmldata/vircaps-x86_64-resctrl-cdp.xml
@@ -17,12 +17,12 @@
           <pages unit='KiB' size='2048'>4096</pages>
           <pages unit='KiB' size='1048576'>6144</pages>
           <cpus num='6'>
-            <cpu id='0' socket_id='0' die_id='0' core_id='0' siblings='0'/>
-            <cpu id='1' socket_id='0' die_id='0' core_id='1' siblings='1'/>
-            <cpu id='2' socket_id='0' die_id='0' core_id='2' siblings='2'/>
-            <cpu id='3' socket_id='0' die_id='0' core_id='3' siblings='3'/>
-            <cpu id='4' socket_id='0' die_id='0' core_id='4' siblings='4'/>
-            <cpu id='5' socket_id='0' die_id='0' core_id='5' siblings='5'/>
+            <cpu id='0' socket_id='0' die_id='0' cluster_id='0' core_id='0' siblings='0'/>
+            <cpu id='1' socket_id='0' die_id='0' cluster_id='0' core_id='1' siblings='1'/>
+            <cpu id='2' socket_id='0' die_id='0' cluster_id='0' core_id='2' siblings='2'/>
+            <cpu id='3' socket_id='0' die_id='0' cluster_id='0' core_id='3' siblings='3'/>
+            <cpu id='4' socket_id='0' die_id='0' cluster_id='0' core_id='4' siblings='4'/>
+            <cpu id='5' socket_id='0' die_id='0' cluster_id='0' core_id='5' siblings='5'/>
           </cpus>
         </cell>
         <cell id='1'>
@@ -31,12 +31,12 @@
           <pages unit='KiB' size='2048'>6144</pages>
           <pages unit='KiB' size='1048576'>8192</pages>
           <cpus num='6'>
-            <cpu id='6' socket_id='1' die_id='0' core_id='0' siblings='6'/>
-            <cpu id='7' socket_id='1' die_id='0' core_id='1' siblings='7'/>
-            <cpu id='8' socket_id='1' die_id='0' core_id='2' siblings='8'/>
-            <cpu id='9' socket_id='1' die_id='0' core_id='3' siblings='9'/>
-            <cpu id='10' socket_id='1' die_id='0' core_id='4' siblings='10'/>
-            <cpu id='11' socket_id='1' die_id='0' core_id='5' siblings='11'/>
+            <cpu id='6' socket_id='1' die_id='0' cluster_id='0' core_id='0' siblings='6'/>
+            <cpu id='7' socket_id='1' die_id='0' cluster_id='0' core_id='1' siblings='7'/>
+            <cpu id='8' socket_id='1' die_id='0' cluster_id='0' core_id='2' siblings='8'/>
+            <cpu id='9' socket_id='1' die_id='0' cluster_id='0' core_id='3' siblings='9'/>
+            <cpu id='10' socket_id='1' die_id='0' cluster_id='0' core_id='4' siblings='10'/>
+            <cpu id='11' socket_id='1' die_id='0' cluster_id='0' core_id='5' siblings='11'/>
           </cpus>
         </cell>
       </cells>
diff --git a/tests/vircaps2xmldata/vircaps-x86_64-resctrl-cmt.xml b/tests/vircaps2xmldata/vircaps-x86_64-resctrl-cmt.xml
index acdd97ec58..311bb58e6a 100644
--- a/tests/vircaps2xmldata/vircaps-x86_64-resctrl-cmt.xml
+++ b/tests/vircaps2xmldata/vircaps-x86_64-resctrl-cmt.xml
@@ -17,12 +17,12 @@
           <pages unit='KiB' size='2048'>4096</pages>
           <pages unit='KiB' size='1048576'>6144</pages>
           <cpus num='6'>
-            <cpu id='0' socket_id='0' die_id='0' core_id='0' siblings='0'/>
-            <cpu id='1' socket_id='0' die_id='0' core_id='1' siblings='1'/>
-            <cpu id='2' socket_id='0' die_id='0' core_id='2' siblings='2'/>
-            <cpu id='3' socket_id='0' die_id='0' core_id='3' siblings='3'/>
-            <cpu id='4' socket_id='0' die_id='0' core_id='4' siblings='4'/>
-            <cpu id='5' socket_id='0' die_id='0' core_id='5' siblings='5'/>
+            <cpu id='0' socket_id='0' die_id='0' cluster_id='0' core_id='0' siblings='0'/>
+            <cpu id='1' socket_id='0' die_id='0' cluster_id='0' core_id='1' siblings='1'/>
+            <cpu id='2' socket_id='0' die_id='0' cluster_id='0' core_id='2' siblings='2'/>
+            <cpu id='3' socket_id='0' die_id='0' cluster_id='0' core_id='3' siblings='3'/>
+            <cpu id='4' socket_id='0' die_id='0' cluster_id='0' core_id='4' siblings='4'/>
+            <cpu id='5' socket_id='0' die_id='0' cluster_id='0' core_id='5' siblings='5'/>
           </cpus>
         </cell>
         <cell id='1'>
@@ -31,12 +31,12 @@
           <pages unit='KiB' size='2048'>6144</pages>
           <pages unit='KiB' size='1048576'>8192</pages>
           <cpus num='6'>
-            <cpu id='6' socket_id='1' die_id='0' core_id='0' siblings='6'/>
-            <cpu id='7' socket_id='1' die_id='0' core_id='1' siblings='7'/>
-            <cpu id='8' socket_id='1' die_id='0' core_id='2' siblings='8'/>
-            <cpu id='9' socket_id='1' die_id='0' core_id='3' siblings='9'/>
-            <cpu id='10' socket_id='1' die_id='0' core_id='4' siblings='10'/>
-            <cpu id='11' socket_id='1' die_id='0' core_id='5' siblings='11'/>
+            <cpu id='6' socket_id='1' die_id='0' cluster_id='0' core_id='0' siblings='6'/>
+            <cpu id='7' socket_id='1' die_id='0' cluster_id='0' core_id='1' siblings='7'/>
+            <cpu id='8' socket_id='1' die_id='0' cluster_id='0' core_id='2' siblings='8'/>
+            <cpu id='9' socket_id='1' die_id='0' cluster_id='0' core_id='3' siblings='9'/>
+            <cpu id='10' socket_id='1' die_id='0' cluster_id='0' core_id='4' siblings='10'/>
+            <cpu id='11' socket_id='1' die_id='0' cluster_id='0' core_id='5' siblings='11'/>
           </cpus>
         </cell>
       </cells>
diff --git a/tests/vircaps2xmldata/vircaps-x86_64-resctrl-fake-feature.xml b/tests/vircaps2xmldata/vircaps-x86_64-resctrl-fake-feature.xml
index 1327d85c98..d85407f0b1 100644
--- a/tests/vircaps2xmldata/vircaps-x86_64-resctrl-fake-feature.xml
+++ b/tests/vircaps2xmldata/vircaps-x86_64-resctrl-fake-feature.xml
@@ -17,12 +17,12 @@
           <pages unit='KiB' size='2048'>4096</pages>
           <pages unit='KiB' size='1048576'>6144</pages>
           <cpus num='6'>
-            <cpu id='0' socket_id='0' die_id='0' core_id='0' siblings='0'/>
-            <cpu id='1' socket_id='0' die_id='0' core_id='1' siblings='1'/>
-            <cpu id='2' socket_id='0' die_id='0' core_id='2' siblings='2'/>
-            <cpu id='3' socket_id='0' die_id='0' core_id='3' siblings='3'/>
-            <cpu id='4' socket_id='0' die_id='0' core_id='4' siblings='4'/>
-            <cpu id='5' socket_id='0' die_id='0' core_id='5' siblings='5'/>
+            <cpu id='0' socket_id='0' die_id='0' cluster_id='0' core_id='0' siblings='0'/>
+            <cpu id='1' socket_id='0' die_id='0' cluster_id='0' core_id='1' siblings='1'/>
+            <cpu id='2' socket_id='0' die_id='0' cluster_id='0' core_id='2' siblings='2'/>
+            <cpu id='3' socket_id='0' die_id='0' cluster_id='0' core_id='3' siblings='3'/>
+            <cpu id='4' socket_id='0' die_id='0' cluster_id='0' core_id='4' siblings='4'/>
+            <cpu id='5' socket_id='0' die_id='0' cluster_id='0' core_id='5' siblings='5'/>
           </cpus>
         </cell>
         <cell id='1'>
@@ -31,12 +31,12 @@
           <pages unit='KiB' size='2048'>6144</pages>
           <pages unit='KiB' size='1048576'>8192</pages>
           <cpus num='6'>
-            <cpu id='6' socket_id='1' die_id='0' core_id='0' siblings='6'/>
-            <cpu id='7' socket_id='1' die_id='0' core_id='1' siblings='7'/>
-            <cpu id='8' socket_id='1' die_id='0' core_id='2' siblings='8'/>
-            <cpu id='9' socket_id='1' die_id='0' core_id='3' siblings='9'/>
-            <cpu id='10' socket_id='1' die_id='0' core_id='4' siblings='10'/>
-            <cpu id='11' socket_id='1' die_id='0' core_id='5' siblings='11'/>
+            <cpu id='6' socket_id='1' die_id='0' cluster_id='0' core_id='0' siblings='6'/>
+            <cpu id='7' socket_id='1' die_id='0' cluster_id='0' core_id='1' siblings='7'/>
+            <cpu id='8' socket_id='1' die_id='0' cluster_id='0' core_id='2' siblings='8'/>
+            <cpu id='9' socket_id='1' die_id='0' cluster_id='0' core_id='3' siblings='9'/>
+            <cpu id='10' socket_id='1' die_id='0' cluster_id='0' core_id='4' siblings='10'/>
+            <cpu id='11' socket_id='1' die_id='0' cluster_id='0' core_id='5' siblings='11'/>
           </cpus>
         </cell>
       </cells>
diff --git a/tests/vircaps2xmldata/vircaps-x86_64-resctrl-skx-twocaches.xml b/tests/vircaps2xmldata/vircaps-x86_64-resctrl-skx-twocaches.xml
index 6769bd0591..eb53eb2142 100644
--- a/tests/vircaps2xmldata/vircaps-x86_64-resctrl-skx-twocaches.xml
+++ b/tests/vircaps2xmldata/vircaps-x86_64-resctrl-skx-twocaches.xml
@@ -17,7 +17,7 @@
           <pages unit='KiB' size='2048'>4096</pages>
           <pages unit='KiB' size='1048576'>6144</pages>
           <cpus num='1'>
-            <cpu id='0' socket_id='0' die_id='0' core_id='0' siblings='0'/>
+            <cpu id='0' socket_id='0' die_id='0' cluster_id='0' core_id='0' siblings='0'/>
           </cpus>
         </cell>
       </cells>
diff --git a/tests/vircaps2xmldata/vircaps-x86_64-resctrl-skx.xml b/tests/vircaps2xmldata/vircaps-x86_64-resctrl-skx.xml
index bc52480905..38ea0bdc27 100644
--- a/tests/vircaps2xmldata/vircaps-x86_64-resctrl-skx.xml
+++ b/tests/vircaps2xmldata/vircaps-x86_64-resctrl-skx.xml
@@ -17,7 +17,7 @@
           <pages unit='KiB' size='2048'>4096</pages>
           <pages unit='KiB' size='1048576'>6144</pages>
           <cpus num='1'>
-            <cpu id='0' socket_id='0' die_id='0' core_id='0' siblings='0'/>
+            <cpu id='0' socket_id='0' die_id='0' cluster_id='0' core_id='0' siblings='0'/>
           </cpus>
         </cell>
       </cells>
diff --git a/tests/vircaps2xmldata/vircaps-x86_64-resctrl.xml b/tests/vircaps2xmldata/vircaps-x86_64-resctrl.xml
index b638bbd1c9..fd854ee91e 100644
--- a/tests/vircaps2xmldata/vircaps-x86_64-resctrl.xml
+++ b/tests/vircaps2xmldata/vircaps-x86_64-resctrl.xml
@@ -17,12 +17,12 @@
           <pages unit='KiB' size='2048'>4096</pages>
           <pages unit='KiB' size='1048576'>6144</pages>
           <cpus num='6'>
-            <cpu id='0' socket_id='0' die_id='0' core_id='0' siblings='0'/>
-            <cpu id='1' socket_id='0' die_id='0' core_id='1' siblings='1'/>
-            <cpu id='2' socket_id='0' die_id='0' core_id='2' siblings='2'/>
-            <cpu id='3' socket_id='0' die_id='0' core_id='3' siblings='3'/>
-            <cpu id='4' socket_id='0' die_id='0' core_id='4' siblings='4'/>
-            <cpu id='5' socket_id='0' die_id='0' core_id='5' siblings='5'/>
+            <cpu id='0' socket_id='0' die_id='0' cluster_id='0' core_id='0' siblings='0'/>
+            <cpu id='1' socket_id='0' die_id='0' cluster_id='0' core_id='1' siblings='1'/>
+            <cpu id='2' socket_id='0' die_id='0' cluster_id='0' core_id='2' siblings='2'/>
+            <cpu id='3' socket_id='0' die_id='0' cluster_id='0' core_id='3' siblings='3'/>
+            <cpu id='4' socket_id='0' die_id='0' cluster_id='0' core_id='4' siblings='4'/>
+            <cpu id='5' socket_id='0' die_id='0' cluster_id='0' core_id='5' siblings='5'/>
           </cpus>
         </cell>
         <cell id='1'>
@@ -31,12 +31,12 @@
           <pages unit='KiB' size='2048'>6144</pages>
           <pages unit='KiB' size='1048576'>8192</pages>
           <cpus num='6'>
-            <cpu id='6' socket_id='1' die_id='0' core_id='0' siblings='6'/>
-            <cpu id='7' socket_id='1' die_id='0' core_id='1' siblings='7'/>
-            <cpu id='8' socket_id='1' die_id='0' core_id='2' siblings='8'/>
-            <cpu id='9' socket_id='1' die_id='0' core_id='3' siblings='9'/>
-            <cpu id='10' socket_id='1' die_id='0' core_id='4' siblings='10'/>
-            <cpu id='11' socket_id='1' die_id='0' core_id='5' siblings='11'/>
+            <cpu id='6' socket_id='1' die_id='0' cluster_id='0' core_id='0' siblings='6'/>
+            <cpu id='7' socket_id='1' die_id='0' cluster_id='0' core_id='1' siblings='7'/>
+            <cpu id='8' socket_id='1' die_id='0' cluster_id='0' core_id='2' siblings='8'/>
+            <cpu id='9' socket_id='1' die_id='0' cluster_id='0' core_id='3' siblings='9'/>
+            <cpu id='10' socket_id='1' die_id='0' cluster_id='0' core_id='4' siblings='10'/>
+            <cpu id='11' socket_id='1' die_id='0' cluster_id='0' core_id='5' siblings='11'/>
           </cpus>
         </cell>
       </cells>