Update the interrupt routing for the Slave proc

During Hostboot we route all interrupts to the master proc.
During the MPIPL we send a PSU chip op to the SBE, if the slave
isnt set up to route to the master proc then we get a xstop.
This fix makes sure we update the slave proc's interrupt routing
on the MPIPL path

Change-Id: I41e2728e049128e631537fe016d4402264739f23
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/40181
Reviewed-by: William G. Hoffa <wghoffa@us.ibm.com>
Reviewed-by: Martin Gloff <mgloff@us.ibm.com>
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins OP Build CI <op-jenkins+hostboot@us.ibm.com>
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>

1 files changed, 13 insertions, 0 deletions

diff --git a/src/usr/intr/intrrp.C b/src/usr/intr/intrrp.C
index f30d26b4b..b70569297 100644
--- a/src/usr/intr/intrrp.C
+++ b/src/usr/intr/intrrp.C
@@ -177,6 +177,19 @@ errlHndl_t IntrRp::resetIntpForMpipl()
             break;
         }
 
+        //Hostboot routes all interrupts to the master proc. This gets set up during istep 8
+        //of a normal IPL but later the Hypervisor will reset the routing. During an mpipl,
+        //istep 8 wont get ran so we need to set the routing up now.
+        for(ChipList_t::iterator targ_itr = iv_chipList.begin();
+        targ_itr != iv_chipList.end(); ++targ_itr)
+        {
+            if (*targ_itr != iv_masterHdlr)
+            {
+                TRACDCOMP(g_trac_intr, "IntrRp::resetIntpForMpipl() Setting up Slave Proc Interrupt Routing for proc %lx", get_huid((*targ_itr)->proc));
+                enableSlaveProcInterruptRouting(*targ_itr);
+            }
+        }
+
         //Clear out the mask list because pq state buffer gets cleared after
         //resetting the XIVE Interrupt unit
         iv_maskList.clear();