/** @file\r
*\r
-* Copyright (c) 2011, ARM Limited. All rights reserved.\r
+* Copyright (c) 2011-2015, ARM Limited. All rights reserved.\r
*\r
* This program and the accompanying materials\r
* are licensed and made available under the terms and conditions of the BSD License\r
\r
#include <PiPei.h>\r
\r
+#include <Library/ArmMmuLib.h>\r
#include <Library/ArmPlatformLib.h>\r
#include <Library/DebugLib.h>\r
#include <Library/HobLib.h>\r
VOID\r
);\r
\r
+STATIC\r
VOID\r
InitMmu (\r
- VOID\r
+ IN ARM_MEMORY_REGION_DESCRIPTOR *MemoryTable\r
)\r
{\r
- ARM_MEMORY_REGION_DESCRIPTOR *MemoryTable;\r
+\r
VOID *TranslationTableBase;\r
UINTN TranslationTableSize;\r
RETURN_STATUS Status;\r
\r
- // Get Virtual Memory Map from the Platform Library\r
- ArmPlatformGetVirtualMemoryMap (&MemoryTable);\r
-\r
//Note: Because we called PeiServicesInstallPeiMemory() before to call InitMmu() the MMU Page Table resides in\r
// DRAM (even at the top of DRAM as it is the first permanent memory allocation)\r
Status = ArmConfigureMmu (MemoryTable, &TranslationTableBase, &TranslationTableSize);\r
IN UINT64 UefiMemorySize\r
)\r
{\r
- EFI_RESOURCE_ATTRIBUTE_TYPE ResourceAttributes;\r
- UINT64 ResourceLength;\r
- EFI_PEI_HOB_POINTERS NextHob;\r
- EFI_PHYSICAL_ADDRESS FdTop;\r
- EFI_PHYSICAL_ADDRESS SystemMemoryTop;\r
- EFI_PHYSICAL_ADDRESS ResourceTop;\r
- BOOLEAN Found;\r
+ ARM_MEMORY_REGION_DESCRIPTOR *MemoryTable;\r
+ EFI_RESOURCE_ATTRIBUTE_TYPE ResourceAttributes;\r
+ EFI_PEI_HOB_POINTERS NextHob;\r
+ BOOLEAN Found;\r
+\r
+ // Get Virtual Memory Map from the Platform Library\r
+ ArmPlatformGetVirtualMemoryMap (&MemoryTable);\r
\r
// Ensure PcdSystemMemorySize has been set\r
- ASSERT (PcdGet32 (PcdSystemMemorySize) != 0);\r
+ ASSERT (PcdGet64 (PcdSystemMemorySize) != 0);\r
\r
//\r
// Now, the permanent memory has been installed, we can call AllocatePages()\r
ResourceAttributes = (\r
EFI_RESOURCE_ATTRIBUTE_PRESENT |\r
EFI_RESOURCE_ATTRIBUTE_INITIALIZED |\r
- EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |\r
EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |\r
EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |\r
EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE |\r
EFI_RESOURCE_ATTRIBUTE_TESTED\r
);\r
\r
- // Reserved the memory space occupied by the firmware volume\r
- BuildResourceDescriptorHob (\r
- EFI_RESOURCE_SYSTEM_MEMORY,\r
- ResourceAttributes,\r
- PcdGet32 (PcdSystemMemoryBase),\r
- PcdGet32 (PcdSystemMemorySize)\r
- );\r
-\r
- SystemMemoryTop = (EFI_PHYSICAL_ADDRESS)PcdGet32 (PcdSystemMemoryBase) + (EFI_PHYSICAL_ADDRESS)PcdGet32 (PcdSystemMemorySize);\r
- FdTop = (EFI_PHYSICAL_ADDRESS)PcdGet32(PcdFdBaseAddress) + (EFI_PHYSICAL_ADDRESS)PcdGet32(PcdFdSize);\r
-\r
- // EDK2 does not have the concept of boot firmware copied into DRAM. To avoid the DXE\r
- // core to overwrite this area we must mark the region with the attribute non-present\r
- if ((PcdGet32 (PcdFdBaseAddress) >= PcdGet32 (PcdSystemMemoryBase)) && (FdTop <= SystemMemoryTop)) {\r
- Found = FALSE;\r
-\r
- // Search for System Memory Hob that contains the firmware\r
- NextHob.Raw = GetHobList ();\r
- while ((NextHob.Raw = GetNextHob (EFI_HOB_TYPE_RESOURCE_DESCRIPTOR, NextHob.Raw)) != NULL) {\r
- if ((NextHob.ResourceDescriptor->ResourceType == EFI_RESOURCE_SYSTEM_MEMORY) &&\r
- (PcdGet32(PcdFdBaseAddress) >= NextHob.ResourceDescriptor->PhysicalStart) &&\r
- (FdTop <= NextHob.ResourceDescriptor->PhysicalStart + NextHob.ResourceDescriptor->ResourceLength))\r
- {\r
- ResourceAttributes = NextHob.ResourceDescriptor->ResourceAttribute;\r
- ResourceLength = NextHob.ResourceDescriptor->ResourceLength;\r
- ResourceTop = NextHob.ResourceDescriptor->PhysicalStart + ResourceLength;\r
-\r
- if (PcdGet32(PcdFdBaseAddress) == NextHob.ResourceDescriptor->PhysicalStart) {\r
- if (SystemMemoryTop == FdTop) {\r
- NextHob.ResourceDescriptor->ResourceAttribute = ResourceAttributes & ~EFI_RESOURCE_ATTRIBUTE_PRESENT;\r
- } else {\r
- // Create the System Memory HOB for the firmware with the non-present attribute\r
- BuildResourceDescriptorHob (EFI_RESOURCE_SYSTEM_MEMORY,\r
- ResourceAttributes & ~EFI_RESOURCE_ATTRIBUTE_PRESENT,\r
- PcdGet32(PcdFdBaseAddress),\r
- PcdGet32(PcdFdSize));\r
-\r
- // Top of the FD is system memory available for UEFI\r
- NextHob.ResourceDescriptor->PhysicalStart += PcdGet32(PcdFdSize);\r
- NextHob.ResourceDescriptor->ResourceLength -= PcdGet32(PcdFdSize);\r
- }\r
- } else {\r
- // Create the System Memory HOB for the firmware with the non-present attribute\r
- BuildResourceDescriptorHob (EFI_RESOURCE_SYSTEM_MEMORY,\r
- ResourceAttributes & ~EFI_RESOURCE_ATTRIBUTE_PRESENT,\r
- PcdGet32(PcdFdBaseAddress),\r
- PcdGet32(PcdFdSize));\r
-\r
- // Update the HOB\r
- NextHob.ResourceDescriptor->ResourceLength = PcdGet32(PcdFdBaseAddress) - NextHob.ResourceDescriptor->PhysicalStart;\r
-\r
- // If there is some memory available on the top of the FD then create a HOB\r
- if (FdTop < NextHob.ResourceDescriptor->PhysicalStart + ResourceLength) {\r
- // Create the System Memory HOB for the remaining region (top of the FD)\r
- BuildResourceDescriptorHob (EFI_RESOURCE_SYSTEM_MEMORY,\r
- ResourceAttributes,\r
- FdTop,\r
- ResourceTop - FdTop);\r
- }\r
- }\r
- Found = TRUE;\r
- break;\r
- }\r
- NextHob.Raw = GET_NEXT_HOB (NextHob);\r
+ //\r
+ // Check if the resource for the main system memory has been declared\r
+ //\r
+ Found = FALSE;\r
+ NextHob.Raw = GetHobList ();\r
+ while ((NextHob.Raw = GetNextHob (EFI_HOB_TYPE_RESOURCE_DESCRIPTOR, NextHob.Raw)) != NULL) {\r
+ if ((NextHob.ResourceDescriptor->ResourceType == EFI_RESOURCE_SYSTEM_MEMORY) &&\r
+ (PcdGet64 (PcdSystemMemoryBase) >= NextHob.ResourceDescriptor->PhysicalStart) &&\r
+ (NextHob.ResourceDescriptor->PhysicalStart + NextHob.ResourceDescriptor->ResourceLength <= PcdGet64 (PcdSystemMemoryBase) + PcdGet64 (PcdSystemMemorySize)))\r
+ {\r
+ Found = TRUE;\r
+ break;\r
}\r
+ NextHob.Raw = GET_NEXT_HOB (NextHob);\r
+ }\r
\r
- ASSERT(Found);\r
+ if (!Found) {\r
+ // Reserved the memory space occupied by the firmware volume\r
+ BuildResourceDescriptorHob (\r
+ EFI_RESOURCE_SYSTEM_MEMORY,\r
+ ResourceAttributes,\r
+ PcdGet64 (PcdSystemMemoryBase),\r
+ PcdGet64 (PcdSystemMemorySize)\r
+ );\r
}\r
\r
// Build Memory Allocation Hob\r
- InitMmu ();\r
+ InitMmu (MemoryTable);\r
\r
if (FeaturePcdGet (PcdPrePiProduceMemoryTypeInformationHob)) {\r
// Optional feature that helps prevent EFI memory map fragmentation.\r
projects / mirror_edk2.git / blobdiff