diff options
Diffstat (limited to 'ArmVirtPkg')
| -rw-r--r-- | ArmVirtPkg/MemoryInitPei/MemoryInitPeim.c | 104 | ||||
| -rw-r--r-- | ArmVirtPkg/MemoryInitPei/MemoryInitPeim.inf | 59 |
2 files changed, 163 insertions, 0 deletions
diff --git a/ArmVirtPkg/MemoryInitPei/MemoryInitPeim.c b/ArmVirtPkg/MemoryInitPei/MemoryInitPeim.c new file mode 100644 index 0000000000..ef88a9df1d --- /dev/null +++ b/ArmVirtPkg/MemoryInitPei/MemoryInitPeim.c @@ -0,0 +1,104 @@ +/** @file
+
+ Copyright (c) 2011, ARM Limited. All rights reserved.
+ Copyright (c) 2022, Google LLC. All rights reserved.
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <PiPei.h>
+#include <Library/ArmPlatformLib.h>
+#include <Library/DebugLib.h>
+#include <Library/HobLib.h>
+#include <Library/PeimEntryPoint.h>
+#include <Library/PeiServicesLib.h>
+#include <Library/PcdLib.h>
+#include <Guid/MemoryTypeInformation.h>
+
+EFI_STATUS
+EFIAPI
+MemoryPeim (
+ IN EFI_PHYSICAL_ADDRESS UefiMemoryBase,
+ IN UINT64 UefiMemorySize
+ );
+
+/**
+ Build the memory type information HOB that describes how many pages of each
+ type to preallocate when initializing the GCD memory map.
+**/
+VOID
+EFIAPI
+BuildMemoryTypeInformationHob (
+ VOID
+ )
+{
+ EFI_MEMORY_TYPE_INFORMATION Info[10];
+
+ Info[0].Type = EfiACPIReclaimMemory;
+ Info[0].NumberOfPages = FixedPcdGet32 (PcdMemoryTypeEfiACPIReclaimMemory);
+ Info[1].Type = EfiACPIMemoryNVS;
+ Info[1].NumberOfPages = FixedPcdGet32 (PcdMemoryTypeEfiACPIMemoryNVS);
+ Info[2].Type = EfiReservedMemoryType;
+ Info[2].NumberOfPages = FixedPcdGet32 (PcdMemoryTypeEfiReservedMemoryType);
+ Info[3].Type = EfiRuntimeServicesData;
+ Info[3].NumberOfPages = FixedPcdGet32 (PcdMemoryTypeEfiRuntimeServicesData);
+ Info[4].Type = EfiRuntimeServicesCode;
+ Info[4].NumberOfPages = FixedPcdGet32 (PcdMemoryTypeEfiRuntimeServicesCode);
+ Info[5].Type = EfiBootServicesCode;
+ Info[5].NumberOfPages = FixedPcdGet32 (PcdMemoryTypeEfiBootServicesCode);
+ Info[6].Type = EfiBootServicesData;
+ Info[6].NumberOfPages = FixedPcdGet32 (PcdMemoryTypeEfiBootServicesData);
+ Info[7].Type = EfiLoaderCode;
+ Info[7].NumberOfPages = FixedPcdGet32 (PcdMemoryTypeEfiLoaderCode);
+ Info[8].Type = EfiLoaderData;
+ Info[8].NumberOfPages = FixedPcdGet32 (PcdMemoryTypeEfiLoaderData);
+
+ // Terminator for the list
+ Info[9].Type = EfiMaxMemoryType;
+ Info[9].NumberOfPages = 0;
+
+ BuildGuidDataHob (&gEfiMemoryTypeInformationGuid, &Info, sizeof (Info));
+}
+
+/**
+ Module entry point.
+
+ @param[in] FileHandle Handle of the file being invoked.
+ @param[in] PeiServices Describes the list of possible PEI Services.
+
+ @return EFI_SUCCESS unless the operation failed.
+**/
+EFI_STATUS
+EFIAPI
+InitializeMemory (
+ IN EFI_PEI_FILE_HANDLE FileHandle,
+ IN CONST EFI_PEI_SERVICES **PeiServices
+ )
+{
+ UINTN UefiMemoryBase;
+ EFI_STATUS Status;
+
+ ASSERT (FixedPcdGet64 (PcdSystemMemoryBase) < (UINT64)MAX_ALLOC_ADDRESS);
+
+ //
+ // Put the permanent PEI memory in the first 128 MiB of DRAM so that
+ // it is covered by the statically configured ID map.
+ //
+ UefiMemoryBase = (UINTN)FixedPcdGet64 (PcdSystemMemoryBase) + SIZE_128MB
+ - FixedPcdGet32 (PcdSystemMemoryUefiRegionSize);
+
+ Status = PeiServicesInstallPeiMemory (
+ UefiMemoryBase,
+ FixedPcdGet32 (PcdSystemMemoryUefiRegionSize)
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ Status = MemoryPeim (
+ UefiMemoryBase,
+ FixedPcdGet32 (PcdSystemMemoryUefiRegionSize)
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ return Status;
+}
diff --git a/ArmVirtPkg/MemoryInitPei/MemoryInitPeim.inf b/ArmVirtPkg/MemoryInitPei/MemoryInitPeim.inf new file mode 100644 index 0000000000..2039f71a0e --- /dev/null +++ b/ArmVirtPkg/MemoryInitPei/MemoryInitPeim.inf @@ -0,0 +1,59 @@ +## @file
+# Implementation of MemoryInitPeim that uses the first 128 MiB at the base of
+# DRAM as permanent PEI memory
+#
+# Copyright (c) 2011-2014, ARM Ltd. All rights reserved.<BR>
+# Copyright (c) 2022, Google LLC. All rights reserved.<BR>
+#
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+
+[Defines]
+ INF_VERSION = 1.27
+ BASE_NAME = MemoryInit
+ FILE_GUID = 0fbffd44-f98f-4e1c-9922-e9b21f13c3f8
+ MODULE_TYPE = PEIM
+ VERSION_STRING = 1.0
+ ENTRY_POINT = InitializeMemory
+
+[Sources]
+ MemoryInitPeim.c
+
+[Packages]
+ MdePkg/MdePkg.dec
+ MdeModulePkg/MdeModulePkg.dec
+ EmbeddedPkg/EmbeddedPkg.dec
+ ArmPkg/ArmPkg.dec
+ ArmPlatformPkg/ArmPlatformPkg.dec
+
+[LibraryClasses]
+ PeimEntryPoint
+ DebugLib
+ HobLib
+ ArmLib
+ ArmPlatformLib
+ MemoryInitPeiLib
+
+[Guids]
+ gEfiMemoryTypeInformationGuid
+
+[FeaturePcd]
+ gEmbeddedTokenSpaceGuid.PcdPrePiProduceMemoryTypeInformationHob
+
+[FixedPcd]
+ gArmTokenSpaceGuid.PcdSystemMemoryBase
+ gArmPlatformTokenSpaceGuid.PcdSystemMemoryUefiRegionSize
+
+ gEmbeddedTokenSpaceGuid.PcdMemoryTypeEfiACPIReclaimMemory
+ gEmbeddedTokenSpaceGuid.PcdMemoryTypeEfiACPIMemoryNVS
+ gEmbeddedTokenSpaceGuid.PcdMemoryTypeEfiReservedMemoryType
+ gEmbeddedTokenSpaceGuid.PcdMemoryTypeEfiRuntimeServicesData
+ gEmbeddedTokenSpaceGuid.PcdMemoryTypeEfiRuntimeServicesCode
+ gEmbeddedTokenSpaceGuid.PcdMemoryTypeEfiBootServicesCode
+ gEmbeddedTokenSpaceGuid.PcdMemoryTypeEfiBootServicesData
+ gEmbeddedTokenSpaceGuid.PcdMemoryTypeEfiLoaderCode
+ gEmbeddedTokenSpaceGuid.PcdMemoryTypeEfiLoaderData
+
+[Depex]
+ TRUE
|