Add build_tag to xip image header

When releasing an image to FW, we would like
to keep track of which release tag was used
to build this image. Later on, that release tag
can be used to rebuild the same image.

Change-Id: I734b9a642e1b1c0a63a1cc25ab9c61beb35b25f3
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/26930
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Tested-by: PPE CI <ppe-ci+hostboot@us.ibm.com>
Tested-by: Hostboot CI <hostboot-ci+hostboot@us.ibm.com>
Reviewed-by: Martin Peschke <mpeschke@de.ibm.com>
Reviewed-by: Claus M. Olsen <cmolsen@us.ibm.com>
Reviewed-by: Sachin Gupta <sgupta2m@in.ibm.com>
Reviewed-by: Prachi Gupta <pragupta@us.ibm.com>
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/26933
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins OP Build CI <op-jenkins+hostboot@us.ibm.com>
Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>

src/import/chips/p9/xip/p9_xip_image.c

@@ -5,7 +5,7 @@
 /*                                                                        */
 /* OpenPOWER HostBoot Project                                             */
 /*                                                                        */
-/* Contributors Listed Below - COPYRIGHT 2015,2016                        */
+/* Contributors Listed Below - COPYRIGHT 2015,2017                        */
 /* [+] International Business Machines Corp.                              */
 /*                                                                        */
 /*                                                                        */
@@ -1474,6 +1474,7 @@ xipHeaderFind(void* i_image, const char* i_id, P9XipItem* o_item)
         HEADER_TOC(image_size, iv_imageSize, P9_XIP_UINT32),
         HEADER_TOC(build_date, iv_buildDate, P9_XIP_UINT32),
         HEADER_TOC(build_time, iv_buildTime, P9_XIP_UINT32),
+        HEADER_TOC(build_tag,  iv_buildTag,  P9_XIP_STRING),
 
         HEADER_TOC(header_version, iv_headerVersion, P9_XIP_UINT8),
         HEADER_TOC(toc_normalized, iv_normalized,    P9_XIP_UINT8),
@@ -3068,10 +3069,7 @@ p9_xip_translate_header(P9XipHeader* o_dest, const P9XipHeader* i_src)
     o_dest->iv_kernelAddr   = htobe64(i_src->iv_kernelAddr);
     o_dest->iv_linkAddress = htobe64(i_src->iv_linkAddress);
 
-    for (i = 0; i < 3; i++)
-    {
-        o_dest->iv_reserved64[i] = 0;
-    }
+    memset(o_dest->iv_reserved64, 0, sizeof(i_src->iv_reserved64));
 
     for (i = 0, destSection = o_dest->iv_section,
          srcSection = i_src->iv_section;
@@ -3084,28 +3082,23 @@ p9_xip_translate_header(P9XipHeader* o_dest, const P9XipHeader* i_src)
     o_dest->iv_imageSize = htobe32(i_src->iv_imageSize);
     o_dest->iv_buildDate = htobe32(i_src->iv_buildDate);
     o_dest->iv_buildTime = htobe32(i_src->iv_buildTime);
+    memcpy(o_dest->iv_buildTag, i_src->iv_buildTag,
+           sizeof(i_src->iv_buildTag));
 
-    for (i = 0; i < 5; i++)
-    {
-        o_dest->iv_reserved32[i] = 0;
-    }
+    o_dest->iv_reserved32 = 0;
 
     o_dest->iv_headerVersion = i_src->iv_headerVersion;
     o_dest->iv_normalized = i_src->iv_normalized;
     o_dest->iv_tocSorted = i_src->iv_tocSorted;
 
-    for (i = 0; i < 3; i++)
-    {
-        o_dest->iv_reserved8[i] = 0;
-    }
+    memset(o_dest->iv_reserved8, 0, sizeof(i_src->iv_reserved8));
 
     memcpy(o_dest->iv_buildUser, i_src->iv_buildUser,
            sizeof(i_src->iv_buildUser));
     memcpy(o_dest->iv_buildHost, i_src->iv_buildHost,
            sizeof(i_src->iv_buildHost));
     memcpy(o_dest->iv_reservedChar, i_src->iv_reservedChar,
            sizeof(i_src->iv_reservedChar));
-
 #else
 
     if (o_dest != i_src)

src/import/chips/p9/xip/p9_xip_image.h

@@ -391,8 +391,11 @@ typedef struct
     /// Build time generated by `date +%H%M`, e.g., 0756
     uint32_t iv_buildTime;
 
+    /// Build tag, generated when releasing this image to fw
+    char iv_buildTag[16];
+
     /// Reserved for future expansion
-    uint32_t iv_reserved32[5];
+    uint32_t iv_reserved32;
 
     //////////////////////////////////////////////////////////////////////
     // Other Information - 1-byte aligned; 8 entries
@@ -422,7 +425,6 @@ typedef struct
 
     /// Reserved for future expansion
     char iv_reservedChar[8];
-
 } P9XipHeader;