From a63be426f8e327181dda369348eae2768439536b Mon Sep 17 00:00:00 2001
From: Alexei Fedorov <Alexei.Fedorov@arm.com>
Date: Thu, 8 Jun 2017 15:40:09 +0100
Subject: [PATCH] ArmPlatformPkg: Store initial timer value

This commit adds support for storing initial timer value
logged at the beginning of firmware image execution.
This timer value is required for firmware basic boot performance
data record referenced by Firmware Performance Data Table (FPDT).

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Alexei Fedorov <Alxei.Fedorov@arm.com>
Signed-off-by: Evan Lloyd <evan.lloyd@arm.com>
Reviewed-by: Graeme Gregory <graeme.gregory@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
---
 ArmPlatformPkg/PrePi/PeiMPCore.inf  |  3 ++-
 ArmPlatformPkg/PrePi/PeiUniCore.inf |  3 ++-
 ArmPlatformPkg/PrePi/PrePi.c        | 10 +++++++++-
 3 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/ArmPlatformPkg/PrePi/PeiMPCore.inf b/ArmPlatformPkg/PrePi/PeiMPCore.inf
index 4ce4a52784..636049d4f4 100644
--- a/ArmPlatformPkg/PrePi/PeiMPCore.inf
+++ b/ArmPlatformPkg/PrePi/PeiMPCore.inf
@@ -1,7 +1,7 @@
 #/** @file
 #
 #  (C) Copyright 2015 Hewlett-Packard Development Company, L.P.<BR>
-#  Copyright (c) 2011-2014, ARM Ltd. All rights reserved.<BR>
+#  Copyright (c) 2011-2017, ARM Ltd. All rights reserved.<BR>
 #
 #  This program and the accompanying materials
 #  are licensed and made available under the terms and conditions of the BSD License
@@ -68,6 +68,7 @@
 
 [Guids]
   gArmMpCoreInfoGuid
+  gEfiFirmwarePerformanceGuid
 
 [FeaturePcd]
   gEmbeddedTokenSpaceGuid.PcdPrePiProduceMemoryTypeInformationHob
diff --git a/ArmPlatformPkg/PrePi/PeiUniCore.inf b/ArmPlatformPkg/PrePi/PeiUniCore.inf
index 85114af7d1..f37ddec9d1 100644
--- a/ArmPlatformPkg/PrePi/PeiUniCore.inf
+++ b/ArmPlatformPkg/PrePi/PeiUniCore.inf
@@ -1,7 +1,7 @@
 #/** @file
 #
 #  (C) Copyright 2015 Hewlett-Packard Development Company, L.P.<BR>
-#  Copyright (c) 2011-2014, ARM Ltd. All rights reserved.<BR>
+#  Copyright (c) 2011-2017, ARM Ltd. All rights reserved.<BR>
 #
 #  This program and the accompanying materials
 #  are licensed and made available under the terms and conditions of the BSD License
@@ -67,6 +67,7 @@
 
 [Guids]
   gArmMpCoreInfoGuid
+  gEfiFirmwarePerformanceGuid
 
 [FeaturePcd]
   gEmbeddedTokenSpaceGuid.PcdPrePiProduceMemoryTypeInformationHob
diff --git a/ArmPlatformPkg/PrePi/PrePi.c b/ArmPlatformPkg/PrePi/PrePi.c
index e548ccace0..e5016ea453 100644
--- a/ArmPlatformPkg/PrePi/PrePi.c
+++ b/ArmPlatformPkg/PrePi/PrePi.c
@@ -1,6 +1,6 @@
 /** @file
 *
-*  Copyright (c) 2011-2014, ARM Limited. All rights reserved.
+*  Copyright (c) 2011-2017, ARM Limited. All rights reserved.
 *
 *  This program and the accompanying materials
 *  are licensed and made available under the terms and conditions of the BSD License
@@ -24,6 +24,7 @@
 
 #include <Ppi/GuidedSectionExtraction.h>
 #include <Ppi/ArmMpCoreInfo.h>
+#include <Ppi/SecPerformance.h>
 #include <Guid/LzmaDecompress.h>
 
 #include "PrePi.h"
@@ -86,6 +87,7 @@ PrePiMain (
   CHAR8                         Buffer[100];
   UINTN                         CharCount;
   UINTN                         StacksSize;
+  FIRMWARE_SEC_PERFORMANCE      Performance;
 
   // If ensure the FD is either part of the System Memory or totally outside of the System Memory (XIP)
   ASSERT (IS_XIP() ||
@@ -146,6 +148,12 @@ PrePiMain (
     }
   }
 
+  // Store timer value logged at the beginning of firmware image execution
+  Performance.ResetEnd = GetTimeInNanoSecond (StartTimeStamp);
+
+  // Build SEC Performance Data Hob
+  BuildGuidDataHob (&gEfiFirmwarePerformanceGuid, &Performance, sizeof (Performance));
+
   // Set the Boot Mode
   SetBootMode (ArmPlatformGetBootMode ());