Secure Boot: Implement Centaur SCOM cache

This change implements a Centaur SCOM cache for sensitive SCOM registers.  The
cache is initialized and enabled before the first Centaur SCOM, and disabled
just prior to locking down the Centaur configuration.  Once the Centaur has been
locked down, the real register values are compared to the cache entries, and the
Centaur is deconfigured (not garded) on any mismatch in assumptions.

RTC: 187288
Change-Id: I7b13bfd7eb6b427aba115d6944958bf55e171008
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/57532
Reviewed-by: ILYA SMIRNOV <ismirno@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: Jenkins OP HW <op-hw-jenkins+hostboot@us.ibm.com>
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Reviewed-by: Michael Baiocchi <mbaiocch@us.ibm.com>
Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>

1 files changed, 6 insertions, 2 deletions

diff --git a/src/usr/scom/plugins/scomUdParserFactory.H b/src/usr/scom/plugins/scomUdParserFactory.H
index 2763e0f32..adc291882 100644
--- a/src/usr/scom/plugins/scomUdParserFactory.H
+++ b/src/usr/scom/plugins/scomUdParserFactory.H
@@ -5,7 +5,7 @@
 /*                                                                        */
 /* OpenPOWER HostBoot Project                                             */
 /*                                                                        */
-/* Contributors Listed Below - COPYRIGHT 2016,2017                        */
+/* Contributors Listed Below - COPYRIGHT 2016,2018                        */
 /* [+] International Business Machines Corp.                              */
 /*                                                                        */
 /*                                                                        */
@@ -27,6 +27,7 @@
 
 #include "errludparserfactory.H"
 #include "errludP_scom.H"
+#include "errludP_cache.H"
 
 namespace SCOM
 {
@@ -37,7 +38,10 @@ namespace SCOM
             UserDetailsParserFactory()
             {
                 registerParser<SCOM::UdParserPib>
-                (SCOM_UDT_PIB);
+                    (SCOM_UDT_PIB);
+                registerParser<
+                   ::SECUREBOOT::CENTAUR_SECURITY::UdParserCentaurCacheMismatch>
+                        (SCOM_UDT_CENTAUR_CACHE_MISMATCH);
             }