From 433b31ddeeeb5f521b2159c0ae317a16129aac0a Mon Sep 17 00:00:00 2001
From: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Date: Thu, 18 Sep 2014 17:58:01 +0000
Subject: [PATCH] ArmPlatformPkg/ArmVirtualizationPkg: Add PlatformPeiLib
 library

This is a fork of the ARM PlatformPeiLib for virtual machines. The main
purpose of having this specific implementation is that it allows us to
preserve the device tree blob if it was passed to us in system DRAM.

Contributed-under: TianoCore Contribution Agreement 1.0
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Olivier Martin <olivier.martin@arm.com>



git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16136 6f19259b-4bc3-4df7-8a09-765794883524
---
 .../Library/PlatformPeiLib/PlatformPeiLib.c   | 47 ++++++++++++++++++
 .../Library/PlatformPeiLib/PlatformPeiLib.inf | 48 +++++++++++++++++++
 2 files changed, 95 insertions(+)
 create mode 100644 ArmPlatformPkg/ArmVirtualizationPkg/Library/PlatformPeiLib/PlatformPeiLib.c
 create mode 100644 ArmPlatformPkg/ArmVirtualizationPkg/Library/PlatformPeiLib/PlatformPeiLib.inf

diff --git a/ArmPlatformPkg/ArmVirtualizationPkg/Library/PlatformPeiLib/PlatformPeiLib.c b/ArmPlatformPkg/ArmVirtualizationPkg/Library/PlatformPeiLib/PlatformPeiLib.c
new file mode 100644
index 0000000000..41d506cf71
--- /dev/null
+++ b/ArmPlatformPkg/ArmVirtualizationPkg/Library/PlatformPeiLib/PlatformPeiLib.c
@@ -0,0 +1,47 @@
+/** @file
+*
+*  Copyright (c) 2011-2012, ARM Limited. All rights reserved.
+*  Copyright (c) 2014, Linaro Limited. All rights reserved.
+*
+*  This program and the accompanying materials
+*  are licensed and made available under the terms and conditions of the BSD License
+*  which accompanies this distribution.  The full text of the license may be found at
+*  http://opensource.org/licenses/bsd-license.php
+*
+*  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+*  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+*
+**/
+
+#include <PiPei.h>
+
+#include <Library/MemoryAllocationLib.h>
+#include <Library/DebugLib.h>
+#include <Library/HobLib.h>
+#include <Library/PcdLib.h>
+#include <libfdt.h>
+
+EFI_STATUS
+EFIAPI
+PlatformPeim (
+  VOID
+  )
+{
+  VOID               *Base;
+  VOID               *NewBase;
+  UINTN              FdtSize;
+
+  Base = (VOID*)(UINTN)FixedPcdGet64 (PcdDeviceTreeInitialBaseAddress);
+  ASSERT (fdt_check_header (Base) == 0);
+
+  FdtSize = fdt_totalsize (Base);
+  NewBase = AllocatePages (EFI_SIZE_TO_PAGES (FdtSize));
+  ASSERT (NewBase != NULL);
+
+  CopyMem (NewBase, Base, FdtSize);
+  PcdSet64 (PcdDeviceTreeBaseAddress, (UINT64)(UINTN)NewBase);
+
+  BuildFvHob (PcdGet32(PcdFvBaseAddress), PcdGet32(PcdFvSize));
+
+  return EFI_SUCCESS;
+}
diff --git a/ArmPlatformPkg/ArmVirtualizationPkg/Library/PlatformPeiLib/PlatformPeiLib.inf b/ArmPlatformPkg/ArmVirtualizationPkg/Library/PlatformPeiLib/PlatformPeiLib.inf
new file mode 100644
index 0000000000..e544b528d2
--- /dev/null
+++ b/ArmPlatformPkg/ArmVirtualizationPkg/Library/PlatformPeiLib/PlatformPeiLib.inf
@@ -0,0 +1,48 @@
+#/** @file
+#
+#  Copyright (c) 2011-2012, ARM Limited. All rights reserved.
+#  Copyright (c) 2014, Linaro Limited. All rights reserved.
+#
+#  This program and the accompanying materials
+#  are licensed and made available under the terms and conditions of the BSD License
+#  which accompanies this distribution.  The full text of the license may be found at
+#  http://opensource.org/licenses/bsd-license.php
+#
+#  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+#
+#**/
+
+[Defines]
+  INF_VERSION                    = 0x00010005
+  BASE_NAME                      = PlatformPeiLib
+  FILE_GUID                      = 59C11815-F8DA-4F49-B4FB-EC1E41ED1F06
+  MODULE_TYPE                    = SEC
+  VERSION_STRING                 = 1.0
+  LIBRARY_CLASS                  = PlatformPeiLib
+
+[Sources]
+  PlatformPeiLib.c
+
+[Packages]
+  ArmPkg/ArmPkg.dec
+  ArmPlatformPkg/ArmVirtualizationPkg/ArmVirtualizationPkg.dec
+  MdePkg/MdePkg.dec
+  MdeModulePkg/MdeModulePkg.dec
+  EmbeddedPkg/EmbeddedPkg.dec
+
+[LibraryClasses]
+  DebugLib
+  HobLib
+  FdtLib
+
+[FixedPcd]
+  gArmTokenSpaceGuid.PcdFvBaseAddress
+  gArmTokenSpaceGuid.PcdFvSize
+  gArmVirtualizationTokenSpaceGuid.PcdDeviceTreeInitialBaseAddress
+
+[Pcd]
+  gArmVirtualizationTokenSpaceGuid.PcdDeviceTreeBaseAddress
+
+[Depex]
+  gEfiPeiMemoryDiscoveredPpiGuid
-- 
2.39.2