Secureboot memory layout support.

    * Start kernel in 1/4 cache mode per Secureboot.
    * Copy Secureboot header for base image for later use.
    * Blind-purge bottom half of cache.
    * Add bottom of cache into memory maps for 1/2 cache mode.

RTC: 64762
Change-Id: I1b45f30a2d45c9709d4fd486cfe0ca2ce86b051c
Reviewed-on: http://gfw160.austin.ibm.com:8080/gerrit/3773
Reviewed-by: Michael Baiocchi <baiocchi@us.ibm.com>
Tested-by: Jenkins Server
Reviewed-by: ADAM R. MUHLE <armuhle@us.ibm.com>
Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>
Reviewed-by: A. Patrick Williams III <iawillia@us.ibm.com>

1 files changed, 53 insertions, 0 deletions

diff --git a/src/usr/secureboot/header.H b/src/usr/secureboot/header.H
new file mode 100644
index 000000000..4b905044a
--- /dev/null
+++ b/src/usr/secureboot/header.H
@@ -0,0 +1,53 @@
+/* IBM_PROLOG_BEGIN_TAG                                                   */
+/* This is an automatically generated prolog.                             */
+/*                                                                        */
+/* $Source: src/usr/secureboot/header.H $                                 */
+/*                                                                        */
+/* IBM CONFIDENTIAL                                                       */
+/*                                                                        */
+/* COPYRIGHT International Business Machines Corp. 2013                   */
+/*                                                                        */
+/* p1                                                                     */
+/*                                                                        */
+/* Object Code Only (OCO) source materials                                */
+/* Licensed Internal Code Source Materials                                */
+/* IBM HostBoot Licensed Internal Code                                    */
+/*                                                                        */
+/* The source code for this program is not published or otherwise         */
+/* divested of its trade secrets, irrespective of what has been           */
+/* deposited with the U.S. Copyright Office.                              */
+/*                                                                        */
+/* Origin: 30                                                             */
+/*                                                                        */
+/* IBM_PROLOG_END_TAG                                                     */
+#ifndef __SECUREBOOT_HEADER_H
+#define __SECUREBOOT_HEADER_H
+
+#include <stdint.h>
+
+/** @file header.H
+ *
+ *  @brief Classes for manipulating Secureboot headers.
+ */
+
+namespace SECUREBOOT
+{
+    /** @class Header
+     *  @brief Class for storing the original Secureboot header for later use.
+     */
+    class Header
+    {
+        public:
+            Header() : iv_data(NULL) {};
+            ~Header() {};
+
+            /** @brief Extract header from original HRMOR - 1 page address. */
+            void loadBaseHeader();
+
+        private:
+            /** Copy of the original secureboot header for the base image. */
+            void* iv_data;
+    };
+};
+
+#endif