2 files changed, 20 insertions, 2 deletions
diff --git a/src/import/chips/p9/procedures/ppe/pk/ppe42/ppe42_exceptions.S b/src/import/chips/p9/procedures/ppe/pk/ppe42/ppe42_exceptions.S
index 5efb2073..ce463ebb 100644
--- a/src/import/chips/p9/procedures/ppe/pk/ppe42/ppe42_exceptions.S
+++ b/src/import/chips/p9/procedures/ppe/pk/ppe42/ppe42_exceptions.S
@@ -58,6 +58,8 @@ __vectors:
         ### will be forwarded to the program exception handler.
 __machine_check:
 
+        PPE_CAPTURE_INTERRUPT_FFDC
+
         PPE42_MACHINE_CHECK_HANDLER
 
         ############################################################
@@ -89,6 +91,8 @@ __system_reset:
         .org __vectors + 0x0060
 __data_storage:
 
+        PPE_CAPTURE_INTERRUPT_FFDC
+
         PPE42_DATA_STORAGE_HANDLER
 
         ############################################################
@@ -98,6 +102,8 @@ __data_storage:
         .org __vectors + 0x0080
 __instruction_storage:
 
+        PPE_CAPTURE_INTERRUPT_FFDC
+
         PPE42_INSTRUCTION_STORAGE_HANDLER
 
 
@@ -116,8 +122,9 @@ __external_interrupt_vector:
         .org __vectors + 0x00C0
 __alignment_exception:
 
-        PPE42_ALIGNMENT_HANDLER
+        PPE_CAPTURE_INTERRUPT_FFDC
 
+        PPE42_ALIGNMENT_HANDLER
 
         ############################################################
         # 0x00E0 : Program Interrupt
@@ -126,8 +133,10 @@ __alignment_exception:
         .org __vectors + 0x00E0
 
 __program_exception:
-        _pk_panic   PPE42_ILLEGAL_INSTRUCTION
 
+        PPE_CAPTURE_INTERRUPT_FFDC
+
+        _pk_panic   PPE42_ILLEGAL_INSTRUCTION
 
         ############################################################
         # 0x0100 : DEC Interrupts
diff --git a/src/import/chips/p9/procedures/ppe/pk/ppe42/ppe42_irq.h b/src/import/chips/p9/procedures/ppe/pk/ppe42/ppe42_irq.h
index ae899359..7bda9846 100644
--- a/src/import/chips/p9/procedures/ppe/pk/ppe42/ppe42_irq.h
+++ b/src/import/chips/p9/procedures/ppe/pk/ppe42/ppe42_irq.h
@@ -53,6 +53,15 @@
 //  bytes (8 instructions) to an unhandled exception, so any redefinition
 //  would most likely be a branch to an application-defined handler.
 
+// Empty PPE FFDC Handler plugged here, dependent platform needs to plug it in,
+// if specific registers are required to be saved-off during the interupt
+// execution
+// by Default it will not generate any branch instruction in the pk interrupt
+// vector table
+#ifndef PPE_CAPTURE_INTERRUPT_FFDC
+    #define PPE_CAPTURE_INTERRUPT_FFDC
+#endif
+
 #ifndef PPE42_MACHINE_CHECK_HANDLER
     #define PPE42_MACHINE_CHECK_HANDLER PK_PANIC( PPE42_MACHINE_CHECK_PANIC)
 #endif