Support mailbox scratch register bit for security override

- Added new mailbox scratch reg 3 bit 6 for security override
- Trace propagation of this bit across the chips

Change-Id: Ib353a1856dc68566cb090163fab532d7a4607073
RTC: 170650
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/39527
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Reviewed-by: Michael Baiocchi <mbaiocch@us.ibm.com>
Tested-by: Jenkins OP Build CI <op-jenkins+hostboot@us.ibm.com>
Reviewed-by: Stephen M. Cprek <smcprek@us.ibm.com>
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>

3 files changed, 18 insertions, 7 deletions

diff --git a/src/include/usr/initservice/mboxRegs.H b/src/include/usr/initservice/mboxRegs.H
index 2b645fe1e..cde76b1e9 100644
--- a/src/include/usr/initservice/mboxRegs.H
+++ b/src/include/usr/initservice/mboxRegs.H
@@ -82,13 +82,14 @@ namespace SPLESS
         uint32_t data32;
         struct
         {
-            uint32_t istepMode       :1;   //0
-            uint32_t goToRuntime     :1;   //1
-            uint32_t isMpipl         :1;   //2
-            uint32_t fspAttached     :1;   //3
-            uint32_t reserved1       :1;   //4
-            uint32_t sbeInternalFFDC :1;   //5
-            uint32_t reserved2       :26;  //6:31
+            uint32_t istepMode        :1;   //0
+            uint32_t goToRuntime      :1;   //1
+            uint32_t isMpipl          :1;   //2
+            uint32_t fspAttached      :1;   //3
+            uint32_t reserved1        :1;   //4
+            uint32_t sbeInternalFFDC  :1;   //5
+            uint32_t overrideSecurity :1;   //6
+            uint32_t reserved2        :25;  //7:31
         } PACKED;
     };
 
diff --git a/src/usr/isteps/istep08/call_host_slave_sbe_config.C b/src/usr/isteps/istep08/call_host_slave_sbe_config.C
index 0b1d54db4..9280500e8 100644
--- a/src/usr/isteps/istep08/call_host_slave_sbe_config.C
+++ b/src/usr/isteps/istep08/call_host_slave_sbe_config.C
@@ -103,6 +103,11 @@ void* call_host_slave_sbe_config(void *io_pArgs)
     l_sys->setAttr<ATTR_BOOT_FLAGS>(l_scratch3.data32);
 
     TRACFCOMP( ISTEPS_TRACE::g_trac_isteps_trace, "ATTR_BOOT_FLAGS=%.8X", l_scratch3.data32 );
+    if(l_scratch3.overrideSecurity)
+    {
+        TRACFCOMP( ISTEPS_TRACE::g_trac_isteps_trace, INFO_MRK
+            "WARNING: Requesting security disable on non-master processors.");
+    }
 
     // grab the boot flags from the master proc
     INITSERVICE::SPLESS::MboxScratch5_t l_scratch5;
diff --git a/src/usr/targeting/targetservicestart.C b/src/usr/targeting/targetservicestart.C
index df962c78c..8b5ab04b3 100755
--- a/src/usr/targeting/targetservicestart.C
+++ b/src/usr/targeting/targetservicestart.C
@@ -135,6 +135,11 @@ static void initTargeting(errlHndl_t& io_pError)
     {
         l_isIstepMode = true;
     }
+    if(l_scratch3.overrideSecurity)
+    {
+        TARG_INF("WARNING: External tool asked master proc to disable "
+            "security.");
+    }
 
     AttrRP::init(io_pError, l_isMpipl);