8ae5fc1829
Now that PrePi no longer exposes its internal code via special HOBs, we can remove the special handling of the primary FV, which needed to be reserved so that DXE core could call into the PE/COFF and LZMA libraries in the PrePi module. Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Udit Kumar <udit.kumar@nxp.com> Signed-off-by: Meenakshi Aggarwal <meenakshi.aggarwal@nxp.com> [ardb: updated commit log] Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
130 lines
3.7 KiB
C
130 lines
3.7 KiB
C
/** @file
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*
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* Copyright (c) 2011-2015, ARM Limited. All rights reserved.
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*
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* This program and the accompanying materials
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* are licensed and made available under the terms and conditions of the BSD License
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* which accompanies this distribution. The full text of the license may be found at
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* http://opensource.org/licenses/bsd-license.php
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*
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* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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*
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**/
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#include <PiPei.h>
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#include <Library/ArmMmuLib.h>
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#include <Library/ArmPlatformLib.h>
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#include <Library/DebugLib.h>
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#include <Library/HobLib.h>
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#include <Library/MemoryAllocationLib.h>
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#include <Library/PcdLib.h>
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VOID
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BuildMemoryTypeInformationHob (
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VOID
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);
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STATIC
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VOID
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InitMmu (
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IN ARM_MEMORY_REGION_DESCRIPTOR *MemoryTable
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)
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{
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VOID *TranslationTableBase;
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UINTN TranslationTableSize;
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RETURN_STATUS Status;
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//Note: Because we called PeiServicesInstallPeiMemory() before to call InitMmu() the MMU Page Table resides in
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// DRAM (even at the top of DRAM as it is the first permanent memory allocation)
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Status = ArmConfigureMmu (MemoryTable, &TranslationTableBase, &TranslationTableSize);
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if (EFI_ERROR (Status)) {
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DEBUG ((EFI_D_ERROR, "Error: Failed to enable MMU\n"));
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}
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}
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/*++
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Routine Description:
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Arguments:
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FileHandle - Handle of the file being invoked.
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PeiServices - Describes the list of possible PEI Services.
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Returns:
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Status - EFI_SUCCESS if the boot mode could be set
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--*/
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EFI_STATUS
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EFIAPI
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MemoryPeim (
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IN EFI_PHYSICAL_ADDRESS UefiMemoryBase,
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IN UINT64 UefiMemorySize
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)
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{
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ARM_MEMORY_REGION_DESCRIPTOR *MemoryTable;
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EFI_RESOURCE_ATTRIBUTE_TYPE ResourceAttributes;
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EFI_PEI_HOB_POINTERS NextHob;
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BOOLEAN Found;
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// Get Virtual Memory Map from the Platform Library
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ArmPlatformGetVirtualMemoryMap (&MemoryTable);
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// Ensure PcdSystemMemorySize has been set
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ASSERT (PcdGet64 (PcdSystemMemorySize) != 0);
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//
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// Now, the permanent memory has been installed, we can call AllocatePages()
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//
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ResourceAttributes = (
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EFI_RESOURCE_ATTRIBUTE_PRESENT |
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EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
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EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |
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EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |
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EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE |
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EFI_RESOURCE_ATTRIBUTE_TESTED
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);
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//
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// Check if the resource for the main system memory has been declared
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//
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Found = FALSE;
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NextHob.Raw = GetHobList ();
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while ((NextHob.Raw = GetNextHob (EFI_HOB_TYPE_RESOURCE_DESCRIPTOR, NextHob.Raw)) != NULL) {
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if ((NextHob.ResourceDescriptor->ResourceType == EFI_RESOURCE_SYSTEM_MEMORY) &&
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(PcdGet64 (PcdSystemMemoryBase) >= NextHob.ResourceDescriptor->PhysicalStart) &&
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(NextHob.ResourceDescriptor->PhysicalStart + NextHob.ResourceDescriptor->ResourceLength <= PcdGet64 (PcdSystemMemoryBase) + PcdGet64 (PcdSystemMemorySize)))
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{
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Found = TRUE;
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break;
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}
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NextHob.Raw = GET_NEXT_HOB (NextHob);
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}
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if (!Found) {
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// Reserved the memory space occupied by the firmware volume
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BuildResourceDescriptorHob (
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EFI_RESOURCE_SYSTEM_MEMORY,
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ResourceAttributes,
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PcdGet64 (PcdSystemMemoryBase),
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PcdGet64 (PcdSystemMemorySize)
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);
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}
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// Build Memory Allocation Hob
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InitMmu (MemoryTable);
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if (FeaturePcdGet (PcdPrePiProduceMemoryTypeInformationHob)) {
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// Optional feature that helps prevent EFI memory map fragmentation.
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BuildMemoryTypeInformationHob ();
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}
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return EFI_SUCCESS;
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}
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