diff options
| -rw-r--r-- | ArmPlatformPkg/MemoryInitPei/MemoryInitPeiLib.c | 69 |
1 files changed, 0 insertions, 69 deletions
diff --git a/ArmPlatformPkg/MemoryInitPei/MemoryInitPeiLib.c b/ArmPlatformPkg/MemoryInitPei/MemoryInitPeiLib.c index 2feb11f21d..d03214b5df 100644 --- a/ArmPlatformPkg/MemoryInitPei/MemoryInitPeiLib.c +++ b/ArmPlatformPkg/MemoryInitPei/MemoryInitPeiLib.c @@ -70,11 +70,7 @@ MemoryPeim ( {
ARM_MEMORY_REGION_DESCRIPTOR *MemoryTable;
EFI_RESOURCE_ATTRIBUTE_TYPE ResourceAttributes;
- UINT64 ResourceLength;
EFI_PEI_HOB_POINTERS NextHob;
- EFI_PHYSICAL_ADDRESS FdTop;
- EFI_PHYSICAL_ADDRESS SystemMemoryTop;
- EFI_PHYSICAL_ADDRESS ResourceTop;
BOOLEAN Found;
// Get Virtual Memory Map from the Platform Library
@@ -121,71 +117,6 @@ MemoryPeim ( );
}
- //
- // Reserved the memory space occupied by the firmware volume
- //
-
- SystemMemoryTop = (EFI_PHYSICAL_ADDRESS)PcdGet64 (PcdSystemMemoryBase) + (EFI_PHYSICAL_ADDRESS)PcdGet64 (PcdSystemMemorySize);
- FdTop = (EFI_PHYSICAL_ADDRESS)PcdGet64 (PcdFdBaseAddress) + (EFI_PHYSICAL_ADDRESS)PcdGet32 (PcdFdSize);
-
- // EDK2 does not have the concept of boot firmware copied into DRAM. To avoid the DXE
- // core to overwrite this area we must mark the region with the attribute non-present
- if ((PcdGet64 (PcdFdBaseAddress) >= PcdGet64 (PcdSystemMemoryBase)) && (FdTop <= SystemMemoryTop)) {
- Found = FALSE;
-
- // Search for System Memory Hob that contains the firmware
- NextHob.Raw = GetHobList ();
- while ((NextHob.Raw = GetNextHob (EFI_HOB_TYPE_RESOURCE_DESCRIPTOR, NextHob.Raw)) != NULL) {
- if ((NextHob.ResourceDescriptor->ResourceType == EFI_RESOURCE_SYSTEM_MEMORY) &&
- (PcdGet64 (PcdFdBaseAddress) >= NextHob.ResourceDescriptor->PhysicalStart) &&
- (FdTop <= NextHob.ResourceDescriptor->PhysicalStart + NextHob.ResourceDescriptor->ResourceLength))
- {
- ResourceAttributes = NextHob.ResourceDescriptor->ResourceAttribute;
- ResourceLength = NextHob.ResourceDescriptor->ResourceLength;
- ResourceTop = NextHob.ResourceDescriptor->PhysicalStart + ResourceLength;
-
- if (PcdGet64 (PcdFdBaseAddress) == NextHob.ResourceDescriptor->PhysicalStart) {
- if (SystemMemoryTop == FdTop) {
- NextHob.ResourceDescriptor->ResourceAttribute = ResourceAttributes & ~EFI_RESOURCE_ATTRIBUTE_PRESENT;
- } else {
- // Create the System Memory HOB for the firmware with the non-present attribute
- BuildResourceDescriptorHob (EFI_RESOURCE_SYSTEM_MEMORY,
- ResourceAttributes & ~EFI_RESOURCE_ATTRIBUTE_PRESENT,
- PcdGet64 (PcdFdBaseAddress),
- PcdGet32 (PcdFdSize));
-
- // Top of the FD is system memory available for UEFI
- NextHob.ResourceDescriptor->PhysicalStart += PcdGet32(PcdFdSize);
- NextHob.ResourceDescriptor->ResourceLength -= PcdGet32(PcdFdSize);
- }
- } else {
- // Create the System Memory HOB for the firmware with the non-present attribute
- BuildResourceDescriptorHob (EFI_RESOURCE_SYSTEM_MEMORY,
- ResourceAttributes & ~EFI_RESOURCE_ATTRIBUTE_PRESENT,
- PcdGet64 (PcdFdBaseAddress),
- PcdGet32 (PcdFdSize));
-
- // Update the HOB
- NextHob.ResourceDescriptor->ResourceLength = PcdGet64 (PcdFdBaseAddress) - NextHob.ResourceDescriptor->PhysicalStart;
-
- // If there is some memory available on the top of the FD then create a HOB
- if (FdTop < NextHob.ResourceDescriptor->PhysicalStart + ResourceLength) {
- // Create the System Memory HOB for the remaining region (top of the FD)
- BuildResourceDescriptorHob (EFI_RESOURCE_SYSTEM_MEMORY,
- ResourceAttributes,
- FdTop,
- ResourceTop - FdTop);
- }
- }
- Found = TRUE;
- break;
- }
- NextHob.Raw = GET_NEXT_HOB (NextHob);
- }
-
- ASSERT(Found);
- }
-
// Build Memory Allocation Hob
InitMmu (MemoryTable);
|