ArmVirtPkg/MemoryInitPei/MemoryInitPeim.c

   1 /** @file
   2
   3   Copyright (c) 2011, ARM Limited. All rights reserved.
   4   Copyright (c) 2022, Google LLC. All rights reserved.
   5
   6   SPDX-License-Identifier: BSD-2-Clause-Patent
   7
   8 **/
   9
  10 #include <PiPei.h>
  11 #include <Library/ArmPlatformLib.h>
  12 #include <Library/DebugLib.h>
  13 #include <Library/HobLib.h>
  14 #include <Library/PeimEntryPoint.h>
  15 #include <Library/PeiServicesLib.h>
  16 #include <Library/PcdLib.h>
  17 #include <Guid/MemoryTypeInformation.h>
  18
  19 EFI_STATUS
  20 EFIAPI
  21 MemoryPeim (
  22   IN EFI_PHYSICAL_ADDRESS  UefiMemoryBase,
  23   IN UINT64                UefiMemorySize
  24   );
  25
  26 /**
  27   Build the memory type information HOB that describes how many pages of each
  28   type to preallocate when initializing the GCD memory map.
  29 **/
  30 VOID
  31 EFIAPI
  32 BuildMemoryTypeInformationHob (
  33   VOID
  34   )
  35 {
  36   EFI_MEMORY_TYPE_INFORMATION  Info[10];
  37
  38   Info[0].Type          = EfiACPIReclaimMemory;
  39   Info[0].NumberOfPages = FixedPcdGet32 (PcdMemoryTypeEfiACPIReclaimMemory);
  40   Info[1].Type          = EfiACPIMemoryNVS;
  41   Info[1].NumberOfPages = FixedPcdGet32 (PcdMemoryTypeEfiACPIMemoryNVS);
  42   Info[2].Type          = EfiReservedMemoryType;
  43   Info[2].NumberOfPages = FixedPcdGet32 (PcdMemoryTypeEfiReservedMemoryType);
  44   Info[3].Type          = EfiRuntimeServicesData;
  45   Info[3].NumberOfPages = FixedPcdGet32 (PcdMemoryTypeEfiRuntimeServicesData);
  46   Info[4].Type          = EfiRuntimeServicesCode;
  47   Info[4].NumberOfPages = FixedPcdGet32 (PcdMemoryTypeEfiRuntimeServicesCode);
  48   Info[5].Type          = EfiBootServicesCode;
  49   Info[5].NumberOfPages = FixedPcdGet32 (PcdMemoryTypeEfiBootServicesCode);
  50   Info[6].Type          = EfiBootServicesData;
  51   Info[6].NumberOfPages = FixedPcdGet32 (PcdMemoryTypeEfiBootServicesData);
  52   Info[7].Type          = EfiLoaderCode;
  53   Info[7].NumberOfPages = FixedPcdGet32 (PcdMemoryTypeEfiLoaderCode);
  54   Info[8].Type          = EfiLoaderData;
  55   Info[8].NumberOfPages = FixedPcdGet32 (PcdMemoryTypeEfiLoaderData);
  56
  57   // Terminator for the list
  58   Info[9].Type          = EfiMaxMemoryType;
  59   Info[9].NumberOfPages = 0;
  60
  61   BuildGuidDataHob (&gEfiMemoryTypeInformationGuid, &Info, sizeof (Info));
  62 }
  63
  64 /**
  65   Module entry point.
  66
  67   @param[in]    FileHandle    Handle of the file being invoked.
  68   @param[in]    PeiServices   Describes the list of possible PEI Services.
  69
  70   @return       EFI_SUCCESS unless the operation failed.
  71 **/
  72 EFI_STATUS
  73 EFIAPI
  74 InitializeMemory (
  75   IN       EFI_PEI_FILE_HANDLE  FileHandle,
  76   IN CONST EFI_PEI_SERVICES     **PeiServices
  77   )
  78 {
  79   UINTN       UefiMemoryBase;
  80   EFI_STATUS  Status;
  81
  82   ASSERT (FixedPcdGet64 (PcdSystemMemoryBase) < (UINT64)MAX_ALLOC_ADDRESS);
  83
  84   //
  85   // Put the permanent PEI memory in the first 128 MiB of DRAM so that
  86   // it is covered by the statically configured ID map.
  87   //
  88   UefiMemoryBase = (UINTN)FixedPcdGet64 (PcdSystemMemoryBase) + SIZE_128MB
  89                    - FixedPcdGet32 (PcdSystemMemoryUefiRegionSize);
  90
  91   Status = PeiServicesInstallPeiMemory (
  92              UefiMemoryBase,
  93              FixedPcdGet32 (PcdSystemMemoryUefiRegionSize)
  94              );
  95   ASSERT_EFI_ERROR (Status);
  96
  97   Status = MemoryPeim (
  98              UefiMemoryBase,
  99              FixedPcdGet32 (PcdSystemMemoryUefiRegionSize)
 100              );
 101   ASSERT_EFI_ERROR (Status);
 102
 103   return Status;
 104 }