Create error log and fail if Proc's EC is found to be 0x0

While looking up the SBE version we will look at the processor's
EC level to determine how to lookup the version. If we find that
the EC level is 0 then something went wrong. In HW the register
describing the procs EC will always be fused to some non-zero
so we shouldnt see this in HW , in simics if this happens it is
likely because simics has not implemented this register yet.

Change-Id: I24bc0caaf3d2c9a574943ca07069bd6fb99cf1a6
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/68804
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins OP Build CI <op-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins OP HW <op-hw-jenkins+hostboot@us.ibm.com>
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Reviewed-by: Matt Derksen <mderkse1@us.ibm.com>
Reviewed-by: William G. Hoffa <wghoffa@us.ibm.com>
Reviewed-by: Ilya Smirnov <ismirno@us.ibm.com>
Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>

src/include/usr/sbe/sbereasoncodes.H

@@ -5,7 +5,7 @@
 /*                                                                        */
 /* OpenPOWER HostBoot Project                                             */
 /*                                                                        */
-/* Contributors Listed Below - COPYRIGHT 2013,2017                        */
+/* Contributors Listed Below - COPYRIGHT 2013,2018                        */
 /* [+] International Business Machines Corp.                              */
 /*                                                                        */
 /*                                                                        */
@@ -106,6 +106,7 @@ enum sbeReasonCode
     SBE_MISMATCHED_HW_KEY_HASH          = SBE_COMP_ID | 0x1A,
     SBE_UPDATE_DURING_MPIPL             = SBE_COMP_ID | 0x1B,
     SBE_BOOT_SIDE_DIRTY_BAD_PATH        = SBE_COMP_ID | 0x1C,
+    SBE_UNSUPPORTED_EC                  = SBE_COMP_ID | 0x1D,
 };
 
 };  // end SBE

src/usr/sbe/sbe_update.C

@@ -747,6 +747,33 @@ namespace SBE
 
                 //Walk the TOC and find our current EC
                 ec = i_target->getAttr<TARGETING::ATTR_EC>();
+
+                // If ec == 0 then this indicates simics is not correctly
+                // writing EC to the FSI register we get the EC level from
+                if(ec == 0)
+                {
+                    TRACFCOMP( g_trac_sbe, ERR_MRK"findSBEInPnor: invalid EC found, EC cannot be 0, check simics model" );
+
+                    /*@
+                     * @errortype
+                     * @moduleid          SBE_FIND_IN_PNOR
+                     * @reasoncode        SBE_UNSUPPORTED_EC
+                     * @userdata1         Target Huid
+                     * @userdata2         unused
+                     * @devdesc           EC level says 0, which is invalid
+                     * @custdesc          Chip level is invalid
+                     */
+                    err = new ErrlEntry(ERRL_SEV_UNRECOVERABLE,
+                                        SBE_FIND_IN_PNOR,
+                                        SBE_UNSUPPORTED_EC,
+                                        TARGETING::get_huid(i_target),
+                                        0,
+                                        ERRORLOG::ErrlEntry::ADD_SW_CALLOUT);
+                    err->collectTrace(SBE_COMP_NAME);
+
+                    break;
+                }
+
                 for(uint32_t i=0; i<MAX_SBE_ENTRIES; i++)
                 {
                     if(static_cast<uint32_t>(ec) == sbeToc->entries[i].ec)
@@ -767,7 +794,7 @@ namespace SBE
                     }
                 }
             }
-
+            // IF we failed to find hdr_Ptr then no matching EC found
             if(NULL == hdr_Ptr)
             {
                 //if we get here, it's an error