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 Signed-off-by: Ard Biesheuvel <ard.biesheu...@linaro.org> --- Removed the 'Reviewed-by: Laszlo Ersek <ler...@redhat.com>' as this module was changed to load the device tree from PcdDeviceTreeInitialBaseAddress, but store the new offset in PcdDeviceTreeBaseAddress (as before). .../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 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 -- 1.8.3.2 ------------------------------------------------------------------------------ Slashdot TV. Video for Nerds. Stuff that matters. http://tv.slashdot.org/ _______________________________________________ edk2-devel mailing list edk2-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/edk2-devel
