diff mbox

[edk2,v7,22/24] ArmVirtualizationPkg: add PlatformPeiLib library

Message ID 1409918214-29584-23-git-send-email-ard.biesheuvel@linaro.org
State New
Headers show

Commit Message

Ard Biesheuvel Sept. 5, 2014, 11:56 a.m. UTC 
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>
---
 .../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

Comments

Laszlo Ersek Sept. 5, 2014, 11:53 p.m. UTC | #1 
On 09/05/14 13:56, Ard Biesheuvel wrote:
> 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>
> ---
>  .../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

R-b stands


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diff mbox

Patch

diff --git a/ArmPlatformPkg/ArmVirtualizationPkg/Library/PlatformPeiLib/PlatformPeiLib.c b/ArmPlatformPkg/ArmVirtualizationPkg/Library/PlatformPeiLib/PlatformPeiLib.c
new file mode 100644
index 000000000000..41d506cf717f
--- /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 000000000000..e544b528d261
--- /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