src/share/vm/trace/trace.xml

*** 476,485 ****
--- 476,495 ----
             has_thread="true" has_stacktrace="true"  is_instant="true">
        <value type="UINT" field="gcId"  label="Pending GC ID" relation="GC_ID" />
        <value type="BYTES64" field="size" label="Allocation Size" />
      </event>
  
+     <event id="G1HeapRegionTypeChange" path="vm/gc/detailed/g1_heap_region_type_change" label="G1 Heap Region Type Change"
+            description="Information about a G1 heap region type change." is_instant="true">
+       <value type="UINT" field="index" label="Index" />
+       <value type="G1HEAPREGIONTYPE" field="from" label="From Type" />
+       <value type="G1HEAPREGIONTYPE" field="to" label="To Type" />
+       <value type="ADDRESS" field="start" label="Start" />
+       <value type="BYTES64" field="used" label="Used" />
+       <value type="UINT" field="allocContext" label="Allocation Context" />
+     </event>
+ 
      <!-- Compiler events -->
  
      <event id="Compilation" path="vm/compiler/compilation" label="Compilation"
           has_thread="true" is_requestable="false" is_constant="false">
        <value type="METHOD" field="method" label="Java Method"/>