--- a/src/hotspot/os/aix/os_aix.cpp	Mon Oct 07 17:13:59 2019 -0700
+++ b/src/hotspot/os/aix/os_aix.cpp	Wed Oct 02 10:01:18 2019 +0200
@@ -132,18 +132,6 @@
 #define ERROR_MP_VMGETINFO_CLAIMS_NO_SUPPORT_FOR_64K 103
 
 // excerpts from systemcfg.h that might be missing on older os levels
-#ifndef PV_5_Compat
-  #define PV_5_Compat 0x0F8000   /* Power PC 5 */
-#endif
-#ifndef PV_6
-  #define PV_6 0x100000          /* Power PC 6 */
-#endif
-#ifndef PV_6_1
-  #define PV_6_1 0x100001        /* Power PC 6 DD1.x */
-#endif
-#ifndef PV_6_Compat
-  #define PV_6_Compat 0x108000   /* Power PC 6 */
-#endif
 #ifndef PV_7
   #define PV_7 0x200000          /* Power PC 7 */
 #endif
@@ -156,6 +144,13 @@
 #ifndef PV_8_Compat
   #define PV_8_Compat 0x308000   /* Power PC 8 */
 #endif
+#ifndef PV_9
+  #define PV_9 0x400000          /* Power PC 9 */
+#endif
+#ifndef PV_9_Compat
+  #define PV_9_Compat  0x408000  /* Power PC 9 */
+#endif
+
 
 static address resolve_function_descriptor_to_code_pointer(address p);
 
@@ -1504,6 +1499,9 @@
 void os::get_summary_cpu_info(char* buf, size_t buflen) {
   // read _system_configuration.version
   switch (_system_configuration.version) {
+  case PV_9:
+    strncpy(buf, "Power PC 9", buflen);
+    break;
   case PV_8:
     strncpy(buf, "Power PC 8", buflen);
     break;
@@ -1537,6 +1535,9 @@
   case PV_8_Compat:
     strncpy(buf, "PV_8_Compat", buflen);
     break;
+  case PV_9_Compat:
+    strncpy(buf, "PV_9_Compat", buflen);
+    break;
   default:
     strncpy(buf, "unknown", buflen);
   }