From a9b954f90fd7a3ca07d5d105d43570ffaf06b850 Mon Sep 17 00:00:00 2001 From: Ard Biesheuvel Date: Thu, 27 Apr 2017 11:54:44 +0100 Subject: Marvell/Armada: Add MemoryInitPeiLib that reserves secure region The default MemoryInitPeiLib implementation insists on reserving the region occupied by our own FV, while this is not necessary at all (the compressed payload is uncompressed elsewhere, so the moment we enter DXE core, we don't care about the FV contents in memory) So clone MemoryInitPeiLib and modify it to suit our needs. Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Ard Biesheuvel Signed-off-by: Marcin Wojtas Reviewed-by: Leif Lindholm --- Platform/Marvell/Armada/Armada.dsc.inc | 6 +- .../Armada70x0MemoryInitPeiLib.c | 158 +++++++++++++++++++++ .../Armada70x0MemoryInitPeiLib.inf | 46 ++++++ 3 files changed, 209 insertions(+), 1 deletion(-) create mode 100644 Platform/Marvell/Armada/Library/Armada70x0MemoryInitPeiLib/Armada70x0MemoryInitPeiLib.c create mode 100644 Platform/Marvell/Armada/Library/Armada70x0MemoryInitPeiLib/Armada70x0MemoryInitPeiLib.inf (limited to 'Platform/Marvell/Armada') diff --git a/Platform/Marvell/Armada/Armada.dsc.inc b/Platform/Marvell/Armada/Armada.dsc.inc index 56d8941518..b0a8240207 100644 --- a/Platform/Marvell/Armada/Armada.dsc.inc +++ b/Platform/Marvell/Armada/Armada.dsc.inc @@ -153,7 +153,7 @@ PcdLib|MdePkg/Library/BasePcdLibNull/BasePcdLibNull.inf [LibraryClasses.common.SEC, LibraryClasses.common.PEIM] - MemoryInitPeiLib|ArmPlatformPkg/MemoryInitPei/MemoryInitPeiLib.inf + MemoryInitPeiLib|Platform/Marvell/Armada/Library/Armada70x0MemoryInitPeiLib/Armada70x0MemoryInitPeiLib.inf BaseMemoryLib|MdePkg/Library/BaseMemoryLib/BaseMemoryLib.inf [LibraryClasses.common.DXE_CORE] @@ -364,6 +364,10 @@ gArmTokenSpaceGuid.PcdSystemMemorySize|0x40000000 gArmTokenSpaceGuid.PcdArmScr|0x531 + # Secure region reservation + gMarvellTokenSpaceGuid.PcdSecureRegionBase|0x4000000 + gMarvellTokenSpaceGuid.PcdSecureRegionSize|0x0200000 + # TRNG gMarvellTokenSpaceGuid.PcdEip76TrngBaseAddress|0xF2760000 diff --git a/Platform/Marvell/Armada/Library/Armada70x0MemoryInitPeiLib/Armada70x0MemoryInitPeiLib.c b/Platform/Marvell/Armada/Library/Armada70x0MemoryInitPeiLib/Armada70x0MemoryInitPeiLib.c new file mode 100644 index 0000000000..53119f4150 --- /dev/null +++ b/Platform/Marvell/Armada/Library/Armada70x0MemoryInitPeiLib/Armada70x0MemoryInitPeiLib.c @@ -0,0 +1,158 @@ +/** @file +* +* Copyright (c) 2011-2015, ARM Limited. All rights reserved. +* Copyright (c) 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 +* 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 + +#include +#include +#include +#include +#include + +VOID +BuildMemoryTypeInformationHob ( + VOID + ); + +STATIC +VOID +InitMmu ( + IN ARM_MEMORY_REGION_DESCRIPTOR *MemoryTable + ) +{ + + VOID *TranslationTableBase; + UINTN TranslationTableSize; + RETURN_STATUS Status; + + Status = ArmConfigureMmu (MemoryTable, + &TranslationTableBase, + &TranslationTableSize); + if (EFI_ERROR (Status)) { + DEBUG ((DEBUG_ERROR, "Error: Failed to enable MMU\n")); + } +} + +/*++ + +Routine Description: + + + +Arguments: + + FileHandle - Handle of the file being invoked. + PeiServices - Describes the list of possible PEI Services. + +Returns: + + Status - EFI_SUCCESS if the boot mode could be set + +--*/ +EFI_STATUS +EFIAPI +MemoryPeim ( + IN EFI_PHYSICAL_ADDRESS UefiMemoryBase, + IN UINT64 UefiMemorySize + ) +{ + ARM_MEMORY_REGION_DESCRIPTOR *MemoryTable; + EFI_RESOURCE_ATTRIBUTE_TYPE ResourceAttributes; + UINT64 ResourceLength; + EFI_PEI_HOB_POINTERS NextHob; + EFI_PHYSICAL_ADDRESS SecureTop; + EFI_PHYSICAL_ADDRESS ResourceTop; + + // Get Virtual Memory Map from the Platform Library + ArmPlatformGetVirtualMemoryMap (&MemoryTable); + + SecureTop = (EFI_PHYSICAL_ADDRESS)FixedPcdGet64 (PcdSecureRegionBase) + + FixedPcdGet32 (PcdSecureRegionSize); + + // + // Search for System Memory Hob that covers the secure firmware, + // and punch a hole in it + // + for (NextHob.Raw = GetHobList (); + NextHob.Raw != NULL; + NextHob.Raw = GetNextHob (EFI_HOB_TYPE_RESOURCE_DESCRIPTOR, + NextHob.Raw)) { + + if ((NextHob.ResourceDescriptor->ResourceType == EFI_RESOURCE_SYSTEM_MEMORY) && + (FixedPcdGet64 (PcdSecureRegionBase) >= NextHob.ResourceDescriptor->PhysicalStart) && + (SecureTop <= NextHob.ResourceDescriptor->PhysicalStart + + NextHob.ResourceDescriptor->ResourceLength)) + { + ResourceAttributes = NextHob.ResourceDescriptor->ResourceAttribute; + ResourceLength = NextHob.ResourceDescriptor->ResourceLength; + ResourceTop = NextHob.ResourceDescriptor->PhysicalStart + ResourceLength; + + if (FixedPcdGet64 (PcdSecureRegionBase) == NextHob.ResourceDescriptor->PhysicalStart) { + // + // This region starts right at the start of the reserved region, so we + // can simply move its start pointer and reduce its length by the same + // value + // + NextHob.ResourceDescriptor->PhysicalStart += FixedPcdGet32 (PcdSecureRegionSize); + NextHob.ResourceDescriptor->ResourceLength -= FixedPcdGet32 (PcdSecureRegionSize); + + } else if ((NextHob.ResourceDescriptor->PhysicalStart + + NextHob.ResourceDescriptor->ResourceLength) == SecureTop) { + + // + // This region ends right at the end of the reserved region, so we + // can simply reduce its length by the size of the region. + // + NextHob.ResourceDescriptor->ResourceLength -= FixedPcdGet32 (PcdSecureRegionSize); + + } else { + // + // This region covers the reserved region. So split it into two regions, + // each one touching the reserved region at either end, but not covering + // it. + // + NextHob.ResourceDescriptor->ResourceLength = FixedPcdGet64 (PcdSecureRegionBase) - + NextHob.ResourceDescriptor->PhysicalStart; + + // Create the System Memory HOB for the remaining region (top of the FD) + BuildResourceDescriptorHob (EFI_RESOURCE_SYSTEM_MEMORY, + ResourceAttributes, + SecureTop, + ResourceTop - SecureTop); + } + + // + // Reserve the memory space occupied by the secure firmware + // + BuildResourceDescriptorHob (EFI_RESOURCE_MEMORY_RESERVED, + 0, + FixedPcdGet64 (PcdSecureRegionBase), + FixedPcdGet32 (PcdSecureRegionSize)); + + break; + } + NextHob.Raw = GET_NEXT_HOB (NextHob); + } + + // Build Memory Allocation Hob + InitMmu (MemoryTable); + + if (FeaturePcdGet (PcdPrePiProduceMemoryTypeInformationHob)) { + // Optional feature that helps prevent EFI memory map fragmentation. + BuildMemoryTypeInformationHob (); + } + + return EFI_SUCCESS; +} diff --git a/Platform/Marvell/Armada/Library/Armada70x0MemoryInitPeiLib/Armada70x0MemoryInitPeiLib.inf b/Platform/Marvell/Armada/Library/Armada70x0MemoryInitPeiLib/Armada70x0MemoryInitPeiLib.inf new file mode 100644 index 0000000000..ebaed01689 --- /dev/null +++ b/Platform/Marvell/Armada/Library/Armada70x0MemoryInitPeiLib/Armada70x0MemoryInitPeiLib.inf @@ -0,0 +1,46 @@ +#/** @file +# +# Copyright (c) 2011-2014, ARM Ltd. All rights reserved.
+# Copyright (c) 2017, Linaro Ltd. 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 = 0x00010019 + BASE_NAME = Armada70x0MemoryInitPeiLib + FILE_GUID = abc4e8a7-89a7-4aea-92bc-0e9421c4a473 + MODULE_TYPE = BASE + VERSION_STRING = 1.0 + LIBRARY_CLASS = MemoryInitPeiLib|SEC PEIM + +[Sources] + Armada70x0MemoryInitPeiLib.c + +[Packages] + ArmPkg/ArmPkg.dec + ArmPlatformPkg/ArmPlatformPkg.dec + EmbeddedPkg/EmbeddedPkg.dec + MdeModulePkg/MdeModulePkg.dec + MdePkg/MdePkg.dec + Platform/Marvell/Marvell.dec + +[LibraryClasses] + ArmPlatformLib + DebugLib + HobLib + ArmMmuLib + +[FeaturePcd] + gEmbeddedTokenSpaceGuid.PcdPrePiProduceMemoryTypeInformationHob + +[FixedPcd] + gMarvellTokenSpaceGuid.PcdSecureRegionBase + gMarvellTokenSpaceGuid.PcdSecureRegionSize -- cgit v1.2.3