PeiBoardInitPreMemLib library provides board-specific
initialization functions for the PEI phase.
Cc: Abner Chang <abner.ch...@amd.com>
Cc: Paul Grimes <paul.gri...@amd.com>
Signed-off-by: Abdul Lateef Attar <abdullateef.at...@amd.com>
---
.../AMD/AmdMinBoardPkg/AmdMinBoardPkg.dec | 8 +
.../AMD/AmdMinBoardPkg/AmdMinBoardPkg.dsc | 5 +
.../PeiBoardInitPreMemLib/AmdMemoryInfoHob.h | 50 ++++
.../PeiBoardInitPreMemLib.c | 229 ++++++++++++++++++
.../PeiBoardInitPreMemLib.inf | 45 ++++
.../PeiBoardInitPreMemLib/PeiMemoryInit.c | 198 +++++++++++++++
.../PeiBoardInitPreMemLib/PeiMemoryInit.h | 50 ++++
7 files changed, 585 insertions(+)
create mode 100644
Platform/AMD/AmdMinBoardPkg/Library/PeiBoardInitPreMemLib/AmdMemoryInfoHob.h
create mode 100644
Platform/AMD/AmdMinBoardPkg/Library/PeiBoardInitPreMemLib/PeiBoardInitPreMemLib.c
create mode 100644
Platform/AMD/AmdMinBoardPkg/Library/PeiBoardInitPreMemLib/PeiBoardInitPreMemLib.inf
create mode 100644
Platform/AMD/AmdMinBoardPkg/Library/PeiBoardInitPreMemLib/PeiMemoryInit.c
create mode 100644
Platform/AMD/AmdMinBoardPkg/Library/PeiBoardInitPreMemLib/PeiMemoryInit.h
diff --git a/Platform/AMD/AmdMinBoardPkg/AmdMinBoardPkg.dec
b/Platform/AMD/AmdMinBoardPkg/AmdMinBoardPkg.dec
index 03d1d77c34..98768af210 100644
--- a/Platform/AMD/AmdMinBoardPkg/AmdMinBoardPkg.dec
+++ b/Platform/AMD/AmdMinBoardPkg/AmdMinBoardPkg.dec
@@ -19,6 +19,10 @@
[Guids]
gAmdMinBoardPkgTokenSpaceGuid = {0xd4d23d79, 0x73bf, 0x460a, {0xa1, 0xc7,
0x85, 0xa3, 0xca, 0x71, 0xb9, 0x4c}}
+ gAmdMemoryInfoHobGuid = { 0x1bce3d14, 0xa5fe, 0x4a0b, { 0x9a, 0x8d,
0x69, 0xca, 0x5d, 0x98, 0x38, 0xd3}}
+
+[Ppis]
+ gAmdMemoryInfoHobPpiGuid = { 0xba16e587, 0x1d66, 0x41b7, { 0x9b, 0x52,
0xca, 0x4f, 0x2c, 0xad, 0x0d, 0xc8}}
[PcdsFixedAtBuild, PcdsPatchableInModule, PcdsDynamic, PcdsDynamicEx]
#
@@ -41,3 +45,7 @@
gAmdMinBoardPkgTokenSpaceGuid.PcdAmdFlashFvAdvancedSecuritySize
|0x00000000|UINT32|0x10000008
gAmdMinBoardPkgTokenSpaceGuid.PcdAmdFlashFvAdvancedSecurityOffset
|0x00000000|UINT32|0x10000009
+ # SMRAM size
+ # Holds the SMRAM area size, which is reserved for SMRAM operation
+ # default value 128MB
+ gAmdMinBoardPkgTokenSpaceGuid.PcdAmdSmramAreaSize
|0x08000000|UINT64|0x20000100
diff --git a/Platform/AMD/AmdMinBoardPkg/AmdMinBoardPkg.dsc
b/Platform/AMD/AmdMinBoardPkg/AmdMinBoardPkg.dsc
index be33089a45..7e356a2a67 100644
--- a/Platform/AMD/AmdMinBoardPkg/AmdMinBoardPkg.dsc
+++ b/Platform/AMD/AmdMinBoardPkg/AmdMinBoardPkg.dsc
@@ -22,6 +22,9 @@
MinPlatformPkg/MinPlatformPkg.dec
UefiCpuPkg/UefiCpuPkg.dec
+[PcdsDynamicDefault]
+ gEfiMdePkgTokenSpaceGuid.PcdPciExpressBaseSize|0x10000000
+
[LibraryClasses]
SpcrDeviceLib|AmdMinBoardPkg/Library/SpcrDeviceLib/SpcrDeviceLib.inf
ReportFvLib|AmdMinBoardPkg/Library/PeiReportFvLib/PeiReportFvLib.inf
@@ -38,6 +41,7 @@
[LibraryClasses.common.PEIM]
SetCacheMtrrLib|AmdMinBoardPkg/Library/SetCacheMtrrLib/SetCacheMtrrLib.inf
+
BoardInitLib|AmdMinBoardPkg/Library/PeiBoardInitPreMemLib/PeiBoardInitPreMemLib.inf
[Components]
AmdMinBoardPkg/Library/SpcrDeviceLib/SpcrDeviceLib.inf
@@ -45,6 +49,7 @@
[Components.IA32]
AmdMinBoardPkg/Library/SetCacheMtrrLib/SetCacheMtrrLib.inf
AmdMinBoardPkg/Library/PeiReportFvLib/PeiReportFvLib.inf
+ AmdMinBoardPkg/Library/PeiBoardInitPreMemLib/PeiBoardInitPreMemLib.inf
[Components.X64]
AmdMinBoardPkg/PciHotPlug/PciHotPlugInit.inf
diff --git
a/Platform/AMD/AmdMinBoardPkg/Library/PeiBoardInitPreMemLib/AmdMemoryInfoHob.h
b/Platform/AMD/AmdMinBoardPkg/Library/PeiBoardInitPreMemLib/AmdMemoryInfoHob.h
new file mode 100644
index 0000000000..b596b3bdf3
--- /dev/null
+++
b/Platform/AMD/AmdMinBoardPkg/Library/PeiBoardInitPreMemLib/AmdMemoryInfoHob.h
@@ -0,0 +1,50 @@
+/** @file
+ Defines AMD memory info hob.
+
+ Copyright (C) 2023 - 2024 Advanced Micro Devices, Inc. All rights reserved.
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef AMD_MEMORY_INFO_HOB_H_
+#define AMD_MEMORY_INFO_HOB_H_
+
+#pragma pack (push, 1)
+
+/// Memory descriptor structure for each memory range
+typedef struct {
+ UINT64 Base; ///< Base address of memory rang
+ UINT64 Size; ///< Size of memory rang
+ UINT32 Attribute; ///< Attribute of memory rang
+ UINT32 Reserved; ///< For alignment purpose
+} AMD_MEMORY_RANGE_DESCRIPTOR;
+
+/// Memory info HOB structure
+typedef struct {
+ UINT32 Version; ///< Version of HOB
structure
+ BOOLEAN Reserved1;
+ UINT16 Reserved2;
+ BOOLEAN Reserved3;
+ UINT8 Reserved4;
+ BOOLEAN Reserved5;
+ UINT32 Reserved6;
+ UINT32 Reserved7;
+ UINT32 NumberOfDescriptor; ///< Number of memory
range descriptor
+ AMD_MEMORY_RANGE_DESCRIPTOR Ranges[1]; ///< Memory ranges
array
+} AMD_MEMORY_INFO_HOB;
+
+#pragma pack (pop)
+
+/// Memory attribute in the memory range descriptor = AVAILABLE
+#define AMD_MEMORY_ATTRIBUTE_AVAILABLE 0x1
+
+/// Memory attribute in the memory range descriptor = UMA
+#define AMD_MEMORY_ATTRIBUTE_UMA 0x2
+
+/// Memory attribute in the memory range descriptor = MMIO
+#define AMD_MEMORY_ATTRIBUTE_MMIO 0x3
+
+/// Memory attribute in the memory range descriptor = RESERVED
+#define AMD_MEMORY_ATTRIBUTE_RESERVED 0x4
+
+#endif
diff --git
a/Platform/AMD/AmdMinBoardPkg/Library/PeiBoardInitPreMemLib/PeiBoardInitPreMemLib.c
b/Platform/AMD/AmdMinBoardPkg/Library/PeiBoardInitPreMemLib/PeiBoardInitPreMemLib.c
new file mode 100644
index 0000000000..01e73efa12
--- /dev/null
+++
b/Platform/AMD/AmdMinBoardPkg/Library/PeiBoardInitPreMemLib/PeiBoardInitPreMemLib.c
@@ -0,0 +1,229 @@
+/** @file
+ BoardInitLib library implementation for pre-mem PEI phase.
+
+Copyright (C) 2023 Advanced Micro Devices, Inc. All rights reserved
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <Library/BoardInitLib.h>
+#include <Library/PeiServicesLib.h>
+#include <Library/DebugLib.h>
+#include <Library/PcdLib.h>
+#include "PeiMemoryInit.h"
+
+EFI_PEI_NOTIFY_DESCRIPTOR mNotifyList = {
+ (EFI_PEI_PPI_DESCRIPTOR_NOTIFY_DISPATCH |
EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
+ &gAmdMemoryInfoHobPpiGuid,
+ EndofAmdMemoryInfoHobPpiGuidCallBack
+};
+
+/**
+ Get Pcie base address from MSR and set PcdPciExpressBaseSize
+
+ @retval EFI_SUCCESS PcdPciExpressBaseSize value set successfully.
+**/
+EFI_STATUS
+EFIAPI
+SetPcieBaseSize (
+ VOID
+ )
+{
+ EFI_STATUS Status;
+ UINT64 PcieBaseSize;
+ UINT8 BusRange;
+
+ Status = EFI_SUCCESS;
+
+ // Gather the value of PcdPciExpressBaseSize from MSR
+ BusRange = RShiftU64 (AsmReadMsr64 (0xC0010058), 2) & 0xF;
+ PcieBaseSize = MultU64x64 (LShiftU64 (1, BusRange), SIZE_1MB);
+ PcdSet64S (PcdPciExpressBaseSize, (UINT64)PcieBaseSize);
+ return Status;
+}
+
+/**
+ This board service detects the board type.
+
+ @retval EFI_SUCCESS The board was detected successfully.
+ @retval EFI_NOT_FOUND The board could not be detected.
+**/
+EFI_STATUS
+EFIAPI
+BoardDetect (
+ VOID
+ )
+{
+ return EFI_SUCCESS;
+}
+
+/**
+ This board service initializes board-specific debug devices.
+
+ @retval EFI_SUCCESS Board-specific debug initialization was successful.
+ @retval EFI_NOT_READY The board has not been detected yet.
+**/
+EFI_STATUS
+EFIAPI
+BoardDebugInit (
+ VOID
+ )
+{
+ return EFI_SUCCESS;
+}
+
+/**
+ This board service detects the boot mode.
+
+ @retval EFI_BOOT_MODE The boot mode.
+ @retval EFI_NOT_READY The board has not been detected yet.
+**/
+EFI_BOOT_MODE
+EFIAPI
+BoardBootModeDetect (
+ VOID
+ )
+{
+ return BOOT_WITH_FULL_CONFIGURATION;
+}
+
+/**
+ A hook for board-specific initialization prior to memory initialization.
+
+ @retval EFI_SUCCESS The board initialization was successful.
+ @retval EFI_NOT_READY The board has not been detected yet.
+**/
+EFI_STATUS
+EFIAPI
+BoardInitBeforeMemoryInit (
+ VOID
+ )
+{
+ EFI_STATUS Status;
+
+ Status = PeiServicesNotifyPpi (&mNotifyList);
+ ASSERT_EFI_ERROR (Status);
+ Status = SetPcieBaseSize ();
+ ASSERT_EFI_ERROR (Status);
+ return (Status);
+}
+
+/**
+ A hook for board-specific initialization after memory initialization.
+
+ @retval EFI_SUCCESS The board initialization was successful.
+ @retval EFI_NOT_READY The board has not been detected yet.
+**/
+EFI_STATUS
+EFIAPI
+BoardInitAfterMemoryInit (
+ VOID
+ )
+{
+ return EFI_SUCCESS;
+}
+
+/**
+ A hook for board-specific initialization prior to disabling temporary RAM.
+
+ @retval EFI_SUCCESS The board initialization was successful.
+ @retval EFI_NOT_READY The board has not been detected yet.
+**/
+EFI_STATUS
+EFIAPI
+BoardInitBeforeTempRamExit (
+ VOID
+ )
+{
+ return EFI_SUCCESS;
+}
+
+/**
+ A hook for board-specific initialization after disabling temporary RAM.
+
+ @retval EFI_SUCCESS The board initialization was successful.
+ @retval EFI_NOT_READY The board has not been detected yet.
+**/
+EFI_STATUS
+EFIAPI
+BoardInitAfterTempRamExit (
+ VOID
+ )
+{
+ return EFI_SUCCESS;
+}
+
+/**
+ A hook for board-specific initialization prior to silicon initialization.
+
+ @retval EFI_SUCCESS The board initialization was successful.
+ @retval EFI_NOT_READY The board has not been detected yet.
+**/
+EFI_STATUS
+EFIAPI
+BoardInitBeforeSiliconInit (
+ VOID
+ )
+{
+ return EFI_SUCCESS;
+}
+
+/**
+ A hook for board-specific initialization after silicon initialization.
+
+ @retval EFI_SUCCESS The board initialization was successful.
+ @retval EFI_NOT_READY The board has not been detected yet.
+**/
+EFI_STATUS
+EFIAPI
+BoardInitAfterSiliconInit (
+ VOID
+ )
+{
+ return EFI_SUCCESS;
+}
+
+/**
+ A hook for board-specific initialization after PCI enumeration.
+
+ @retval EFI_SUCCESS The board initialization was successful.
+ @retval EFI_NOT_READY The board has not been detected yet.
+**/
+EFI_STATUS
+EFIAPI
+BoardInitAfterPciEnumeration (
+ VOID
+ )
+{
+ return EFI_SUCCESS;
+}
+
+/**
+ A hook for board-specific functionality for the ReadyToBoot event.
+
+ @retval EFI_SUCCESS The board initialization was successful.
+ @retval EFI_NOT_READY The board has not been detected yet.
+**/
+EFI_STATUS
+EFIAPI
+BoardInitReadyToBoot (
+ VOID
+ )
+{
+ return EFI_SUCCESS;
+}
+
+/**
+ A hook for board-specific functionality for the ExitBootServices event.
+
+ @retval EFI_SUCCESS The board initialization was successful.
+ @retval EFI_NOT_READY The board has not been detected yet.
+**/
+EFI_STATUS
+EFIAPI
+BoardInitEndOfFirmware (
+ VOID
+ )
+{
+ return EFI_SUCCESS;
+}
diff --git
a/Platform/AMD/AmdMinBoardPkg/Library/PeiBoardInitPreMemLib/PeiBoardInitPreMemLib.inf
b/Platform/AMD/AmdMinBoardPkg/Library/PeiBoardInitPreMemLib/PeiBoardInitPreMemLib.inf
new file mode 100644
index 0000000000..5bc19e6834
--- /dev/null
+++
b/Platform/AMD/AmdMinBoardPkg/Library/PeiBoardInitPreMemLib/PeiBoardInitPreMemLib.inf
@@ -0,0 +1,45 @@
+## @file
+# Board Init Library for AMD Platforms.
+#
+# Copyright (C) 2023 Advanced Micro Devices, Inc. All rights reserved
+#
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+
+[Defines]
+ INF_VERSION = 1.29
+ BASE_NAME = PeiBoardInitPreMemLib
+ FILE_GUID = A394D6BE-4433-4564-8FEB-2C90DD9ECE5B
+ MODULE_TYPE = BASE
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = BoardInitLib
+
+[LibraryClasses]
+ BaseLib
+ DebugLib
+ HobLib
+ PcdLib
+
+[Packages]
+ AmdMinBoardPkg/AmdMinBoardPkg.dec
+ MdePkg/MdePkg.dec
+ MinPlatformPkg/MinPlatformPkg.dec
+
+[Sources]
+ AmdMemoryInfoHob.h
+ PeiMemoryInit.h
+ PeiBoardInitPreMemLib.c
+ PeiMemoryInit.c
+
+[Guids]
+ gAmdMemoryInfoHobGuid
+ gEfiSmmSmramMemoryGuid
+
+[Ppis]
+ gAmdMemoryInfoHobPpiGuid ## CONSUMES
+ gPeiPlatformMemorySizePpiGuid ## CONSUMES
+
+[Pcd]
+ gAmdMinBoardPkgTokenSpaceGuid.PcdAmdSmramAreaSize
+ gEfiMdePkgTokenSpaceGuid.PcdPciExpressBaseSize ## CONSUMES
diff --git
a/Platform/AMD/AmdMinBoardPkg/Library/PeiBoardInitPreMemLib/PeiMemoryInit.c
b/Platform/AMD/AmdMinBoardPkg/Library/PeiBoardInitPreMemLib/PeiMemoryInit.c
new file mode 100644
index 0000000000..03f08214e2
--- /dev/null
+++ b/Platform/AMD/AmdMinBoardPkg/Library/PeiBoardInitPreMemLib/PeiMemoryInit.c
@@ -0,0 +1,198 @@
+/** @file
+
+Copyright (C) 2023 - 2024 Advanced Micro Devices, Inc. All rights reserved
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "PeiMemoryInit.h"
+#include "AmdMemoryInfoHob.h"
+
+/**
+ A Callback routine only AmdMemoryInfoHob is ready.
+
+ @param[in] PeiServices General purpose services available to every
PEIM.
+ @param[in] NotifyDescriptor The descriptor for the notification event.
+ @param[in] Ppi The context of the notification.
+
+ @retval EFI_SUCCESS Platform Pre Memory initialization is successful.
+ EFI_STATUS Various failure from underlying routine calls.
+**/
+EFI_STATUS
+EFIAPI
+EndofAmdMemoryInfoHobPpiGuidCallBack (
+ IN EFI_PEI_SERVICES **PeiServices,
+ IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,
+ IN VOID *Ppi
+ )
+{
+ PEI_PLATFORM_MEMORY_SIZE_PPI *PlatformMemorySizePpi;
+ EFI_STATUS Status;
+ UINT64 MemorySize;
+ AMD_MEMORY_INFO_HOB *AmdMemoryInfoHob;
+ AMD_MEMORY_RANGE_DESCRIPTOR *AmdMemoryInfoRange;
+ EFI_HOB_GUID_TYPE *GuidHob;
+ EFI_PEI_HOB_POINTERS Hob;
+ UINTN Index;
+ EFI_SMRAM_HOB_DESCRIPTOR_BLOCK *SmramHobDescriptorBlock;
+ EFI_PHYSICAL_ADDRESS SmramBaseAddress;
+ UINT8 SmramRanges;
+ UINTN DataSize;
+
+ SmramBaseAddress = 0;
+ SmramRanges = 0;
+
+ // Locate AMD_MEMORY_INFO_HOB Guided HOB and retrieve data
+ AmdMemoryInfoHob = NULL;
+ GuidHob = GetFirstGuidHob (&gAmdMemoryInfoHobGuid);
+ if (GuidHob != NULL) {
+ AmdMemoryInfoHob = GET_GUID_HOB_DATA (GuidHob);
+ }
+
+ if (AmdMemoryInfoHob == NULL) {
+ DEBUG ((DEBUG_ERROR, "Error: Could not locate AMD_MEMORY_INFO_HOB.\n"));
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ DEBUG ((DEBUG_INFO, "AMD_MEMORY_INFO_HOB at 0x%X\n", AmdMemoryInfoHob));
+ DEBUG ((DEBUG_INFO, " Version: 0x%X\n", AmdMemoryInfoHob->Version));
+ DEBUG ((DEBUG_INFO, " NumberOfDescriptor: 0x%X\n",
AmdMemoryInfoHob->NumberOfDescriptor));
+
+ //
+ // Build Descriptors
+ //
+ DEBUG ((DEBUG_INFO, "\nAMD HOB Descriptors:"));
+ for (Index = 0; Index < AmdMemoryInfoHob->NumberOfDescriptor; Index++) {
+ AmdMemoryInfoRange = (AMD_MEMORY_RANGE_DESCRIPTOR
*)&(AmdMemoryInfoHob->Ranges[Index]);
+
+ DEBUG ((DEBUG_INFO, "\n Index: %d\n", Index));
+ DEBUG ((DEBUG_INFO, " Base: 0x%lX\n", AmdMemoryInfoRange->Base));
+ DEBUG ((DEBUG_INFO, " Size: 0x%lX\n", AmdMemoryInfoRange->Size));
+ DEBUG ((DEBUG_INFO, " Attribute: 0x%X\n",
AmdMemoryInfoRange->Attribute));
+
+ switch (AmdMemoryInfoRange->Attribute) {
+ case AMD_MEMORY_ATTRIBUTE_AVAILABLE:
+ if (AmdMemoryInfoRange->Base < SIZE_4GB) {
+ SmramRanges = 1u;
+ // Set SMRAM base at heighest range below 4GB
+ SmramBaseAddress = AmdMemoryInfoRange->Base +
AmdMemoryInfoRange->Size - FixedPcdGet32 (PcdAmdSmramAreaSize);
+ BuildResourceDescriptorHob (
+ EFI_RESOURCE_MEMORY_RESERVED,
+ (EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE |
EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE),
+ SmramBaseAddress,
+ FixedPcdGet32 (PcdAmdSmramAreaSize)
+ );
+ DEBUG ((
+ DEBUG_INFO,
+ "SMRAM RESERVED_MEMORY: Base = 0x%lX, Size = 0x%lX\n",
+ SmramBaseAddress,
+ FixedPcdGet32 (PcdAmdSmramAreaSize)
+ ));
+
+ AmdMemoryInfoRange->Size -= FixedPcdGet32 (PcdAmdSmramAreaSize);
+ }
+
+ if (AmdMemoryInfoRange->Size) {
+ BuildResourceDescriptorHob (
+ EFI_RESOURCE_SYSTEM_MEMORY,
+ SYSTEM_MEMORY_ATTRIBUTES,
+ AmdMemoryInfoRange->Base,
+ AmdMemoryInfoRange->Size
+ );
+
+ DEBUG ((
+ DEBUG_INFO,
+ "SYSTEM_MEMORY: Base = 0x%lX, Size = 0x%lX\n",
+ AmdMemoryInfoRange->Base,
+ AmdMemoryInfoRange->Size
+ ));
+ }
+
+ break;
+
+ case AMD_MEMORY_ATTRIBUTE_MMIO:
+ BuildResourceDescriptorHob (
+ EFI_RESOURCE_MEMORY_MAPPED_IO,
+ MEMORY_MAPPED_IO_ATTRIBUTES,
+ AmdMemoryInfoRange->Base,
+ AmdMemoryInfoRange->Size
+ );
+
+ DEBUG ((
+ DEBUG_INFO,
+ "MMIO: Base = 0x%lX, Size = 0x%lX\n",
+ AmdMemoryInfoRange->Base,
+ AmdMemoryInfoRange->Size
+ ));
+ break;
+
+ case AMD_MEMORY_ATTRIBUTE_RESERVED:
+ case AMD_MEMORY_ATTRIBUTE_UMA:
+ default:
+ BuildResourceDescriptorHob (
+ EFI_RESOURCE_MEMORY_RESERVED,
+ 0,
+ AmdMemoryInfoRange->Base,
+ AmdMemoryInfoRange->Size
+ );
+
+ DEBUG ((
+ DEBUG_INFO,
+ "RESERVED_MEMORY: Base = 0x%lX, Size = 0x%lX\n",
+ AmdMemoryInfoRange->Base,
+ AmdMemoryInfoRange->Size
+ ));
+ break;
+ }
+ }
+
+ ASSERT (SmramRanges > 0);
+ DataSize = sizeof (EFI_SMRAM_HOB_DESCRIPTOR_BLOCK);
+ DataSize += ((SmramRanges - 1) * sizeof (EFI_SMRAM_DESCRIPTOR));
+
+ Hob.Raw = BuildGuidHob (
+ &gEfiSmmSmramMemoryGuid,
+ DataSize
+ );
+ ASSERT (Hob.Raw);
+
+ SmramHobDescriptorBlock =
(EFI_SMRAM_HOB_DESCRIPTOR_BLOCK *)(Hob.Raw);
+ SmramHobDescriptorBlock->NumberOfSmmReservedRegions = SmramRanges;
+ SmramHobDescriptorBlock->Descriptor[0].PhysicalStart = SmramBaseAddress;
+ SmramHobDescriptorBlock->Descriptor[0].CpuStart = SmramBaseAddress;
+ SmramHobDescriptorBlock->Descriptor[0].PhysicalSize = FixedPcdGet32
(PcdAmdSmramAreaSize);
+ SmramHobDescriptorBlock->Descriptor[0].RegionState = EFI_SMRAM_CLOSED |
EFI_CACHEABLE;
+
+ Status = PeiServicesLocatePpi (
+ &gPeiPlatformMemorySizePpiGuid,
+ 0,
+ NULL,
+ (VOID **)&PlatformMemorySizePpi
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ Status = PlatformMemorySizePpi->GetPlatformMemorySize (
+ PeiServices,
+ PlatformMemorySizePpi,
+ &MemorySize
+ );
+ if (EFI_ERROR (Status)) {
+ DEBUG ((
+ DEBUG_ERROR,
+ "%a: Error(%r) in getting Platform Memory size.\n",
+ __func__,
+ Status
+ ));
+ return Status;
+ }
+
+ DEBUG ((
+ DEBUG_INFO,
+ "Installing PeiMemory, BaseAddress = 0x%x, Size = 0x%x\n",
+ 0,
+ MemorySize
+ ));
+ Status = PeiServicesInstallPeiMemory (0, MemorySize);
+ ASSERT_EFI_ERROR (Status);
+ return Status;
+}
diff --git
a/Platform/AMD/AmdMinBoardPkg/Library/PeiBoardInitPreMemLib/PeiMemoryInit.h
b/Platform/AMD/AmdMinBoardPkg/Library/PeiBoardInitPreMemLib/PeiMemoryInit.h
new file mode 100644
index 0000000000..726db25543
--- /dev/null
+++ b/Platform/AMD/AmdMinBoardPkg/Library/PeiBoardInitPreMemLib/PeiMemoryInit.h
@@ -0,0 +1,50 @@
+/** @file
+ This file contains definitions required for memory initialization in PEI
phase.
+
+ Copyright (C) 2024 Advanced Micro Devices, Inc. All rights reserved.
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+**/
+
+#ifndef PEI_MEMORY_INIT_PEI_H_
+#define PEI_MEMORY_INIT_PEI_H_
+
+#include <Uefi/UefiBaseType.h>
+#include <Pi/PiPeiCis.h>
+#include <Library/PeiServicesLib.h>
+#include <Ppi/PlatformMemorySize.h>
+#include <Guid/SmramMemoryReserve.h>
+#include <Library/HobLib.h>
+#include <Library/DebugLib.h>
+
+#define SYSTEM_MEMORY_ATTRIBUTES ( \
+ EFI_RESOURCE_ATTRIBUTE_PRESENT | \
+ EFI_RESOURCE_ATTRIBUTE_INITIALIZED | \
+ EFI_RESOURCE_ATTRIBUTE_TESTED | \
+ EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE | \
+ EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE | \
+ EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE | \
+ EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE \
+ )
+
+#define MEMORY_MAPPED_IO_ATTRIBUTES ( \
+ EFI_RESOURCE_ATTRIBUTE_PRESENT | \
+ EFI_RESOURCE_ATTRIBUTE_INITIALIZED | \
+ EFI_RESOURCE_ATTRIBUTE_TESTED | \
+ EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE \
+ )
+
+/**
+ A Callback routine only AmdMemoryInfoHob is ready.
+
+ @retval EFI_SUCCESS Platform Pre Memory initialization is successfull.
+ EFI_STATUS Various failure from underlying routine calls.
+**/
+EFI_STATUS
+EFIAPI
+EndofAmdMemoryInfoHobPpiGuidCallBack (
+ IN EFI_PEI_SERVICES **PeiServices,
+ IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,
+ IN VOID *Ppi
+ );
+
+#endif // PEI_MEMORY_INIT_PEI_H_
--
2.34.1
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