Base Support for Secure ROM verification

This change adds the basic structure needed to call and
implement a verifcation of a signed container via the
loaded/initliaized Secure ROM device.

Change-Id: Ieada4eb0b557fc556cd12647a698bbfa16aba278
RTC:64764
Reviewed-on: http://gfw160.austin.ibm.com:8080/gerrit/4958
Tested-by: Jenkins Server
Reviewed-by: A. Patrick Williams III <iawillia@us.ibm.com>

1 files changed, 51 insertions, 0 deletions

diff --git a/src/usr/secureboot/base/rom_entry.S b/src/usr/secureboot/base/rom_entry.S
new file mode 100644
index 000000000..f2d67e3f1
--- /dev/null
+++ b/src/usr/secureboot/base/rom_entry.S
@@ -0,0 +1,51 @@
+# IBM_PROLOG_BEGIN_TAG
+# This is an automatically generated prolog.
+#
+# $Source: src/usr/secureboot/base/rom_entry.S $
+#
+# 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
+.include "kernel/ppcconsts.S"
+
+.section .text
+
+.global call_rom_verify
+.global call_rom_SHA512
+
+call_rom_verify:
+call_rom_SHA512:
+
+call_rom_entry:
+    std r2, 40(r1)
+    mflr r0
+    std r0, 16(r1)
+    stdu r1, -128(r1)
+    li r2, 0
+    mtctr r3
+    mr r3, r4
+    mr r4, r5
+    mr r5, r6
+    mr r6, r7
+    mr r7, r8
+    bctrl
+    addi r1, r1, 128
+    ld r2, 40(r1)
+    ld r0, 16(r1)
+    mtlr r0
+    blr
+