diff options
Diffstat (limited to 'Silicon/AMD/Styx/Library/MemoryInitPei/MemoryInitPeiLib.c')
| -rw-r--r-- | Silicon/AMD/Styx/Library/MemoryInitPei/MemoryInitPeiLib.c | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/Silicon/AMD/Styx/Library/MemoryInitPei/MemoryInitPeiLib.c b/Silicon/AMD/Styx/Library/MemoryInitPei/MemoryInitPeiLib.c new file mode 100644 index 0000000000..70821d1b12 --- /dev/null +++ b/Silicon/AMD/Styx/Library/MemoryInitPei/MemoryInitPeiLib.c @@ -0,0 +1,185 @@ +/** @file
+
+ Copyright (c) 2011-2014, ARM Limited. All rights reserved.<BR>
+ Copyright (c) 2014 - 2016 AMD Inc. All rights reserved.<BR>
+
+ This program and the accompanying materials
+ are licensed and made available under the terms and conditions of the BSD License
+ which accompanies this distribution. The full text of the license may be found at
+ http://opensource.org/licenses/bsd-license.php
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+/**
+ Derived from:
+ ArmPlatformPkg/MemoryInitPei/MemoryInitPeiLib.c
+
+**/
+
+#include <PiPei.h>
+
+#include <Library/ArmMmuLib.h>
+#include <Library/ArmPlatformLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/DebugLib.h>
+#include <Library/HobLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/PcdLib.h>
+
+VOID
+BuildMemoryTypeInformationHob (
+ VOID
+ );
+
+VOID
+InitMmu (
+ VOID
+ )
+{
+ ARM_MEMORY_REGION_DESCRIPTOR *MemoryTable;
+ VOID *TranslationTableBase;
+ UINTN TranslationTableSize;
+ RETURN_STATUS Status;
+
+ // Get Virtual Memory Map from the Platform Library
+ ArmPlatformGetVirtualMemoryMap (&MemoryTable);
+
+ // Note: Because we called PeiServicesInstallPeiMemory() before to call
+ // InitMmu() the MMU Page Table resides in DRAM (even at the top
+ // of DRAM as it is the first permanent memory allocation)
+ Status = ArmConfigureMmu (MemoryTable, &TranslationTableBase, &TranslationTableSize);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((EFI_D_ERROR, "Error: Failed to enable MMU\n"));
+ }
+}
+
+STATIC
+VOID
+MoveNvStoreImage (
+ VOID
+ )
+{
+ VOID *OldBase, *NewBase;
+ UINTN Size;
+
+ //
+ // Move the in-memory image of the NV store firmware volume to a dynamically
+ // allocated buffer. This gets rid of the annoying static memory reservation
+ // at the base of memory where all other UEFI allocations are near the top.
+ //
+ OldBase = (VOID *)FixedPcdGet64 (PcdFlashNvStorageOriginalBase);
+
+ Size = FixedPcdGet32 (PcdFlashNvStorageVariableSize) +
+ FixedPcdGet32 (PcdFlashNvStorageFtwWorkingSize) +
+ FixedPcdGet32 (PcdFlashNvStorageFtwSpareSize);
+
+ NewBase = AllocateAlignedRuntimePages (EFI_SIZE_TO_PAGES (Size), SIZE_64KB);
+ ASSERT (NewBase != NULL);
+
+ CopyMem (NewBase, OldBase, Size);
+
+ DEBUG ((EFI_D_INFO, "%a: Relocating NV store FV from %p to %p\n",
+ __FUNCTION__, OldBase, NewBase));
+
+ PcdSet64 (PcdFlashNvStorageVariableBase64, (UINT64)NewBase);
+
+ PcdSet64 (PcdFlashNvStorageFtwWorkingBase64, (UINT64)NewBase +
+ FixedPcdGet32 (PcdFlashNvStorageVariableSize));
+
+ PcdSet64 (PcdFlashNvStorageFtwSpareBase64, (UINT64)NewBase +
+ FixedPcdGet32 (PcdFlashNvStorageVariableSize) +
+ FixedPcdGet32 (PcdFlashNvStorageFtwWorkingSize));
+}
+
+/*++
+
+Routine Description:
+
+
+
+Arguments:
+
+ FileHandle - Handle of the file being invoked.
+ PeiServices - Describes the list of possible PEI Services.
+
+Returns:
+
+ Status - EFI_SUCCESS if the boot mode could be set
+
+--*/
+EFI_STATUS
+EFIAPI
+MemoryPeim (
+ IN EFI_PHYSICAL_ADDRESS UefiMemoryBase,
+ IN UINT64 UefiMemorySize
+ )
+{
+ UINT64 Base, Size;
+
+ // Ensure PcdSystemMemorySize has been set
+ ASSERT (PcdGet64 (PcdSystemMemorySize) != 0);
+
+ //
+ // Now, the permanent memory has been installed, we can call AllocatePages()
+ //
+
+ Base = PcdGet64 (PcdSystemMemoryBase);
+ Size = PcdGet64 (PcdSystemMemorySize);
+ if (FixedPcdGetBool (PcdTrustedFWSupport)) {
+
+ //
+ // For now, we assume that the trusted firmware region is at the base of
+ // system memory, since that is much easier to deal with.
+ //
+ ASSERT (Base == PcdGet64 (PcdTrustedFWMemoryBase));
+
+ Base += PcdGet64 (PcdTrustedFWMemorySize);
+ Size -= PcdGet64 (PcdTrustedFWMemorySize);
+
+ // Reserved Trusted Firmware region
+ BuildResourceDescriptorHob (
+ EFI_RESOURCE_SYSTEM_MEMORY,
+ ( EFI_RESOURCE_ATTRIBUTE_PRESENT |
+ EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
+ EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |
+ EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |
+ EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE |
+ EFI_RESOURCE_ATTRIBUTE_TESTED ),
+ PcdGet64 (PcdTrustedFWMemoryBase),
+ PcdGet64 (PcdTrustedFWMemorySize)
+ );
+
+ BuildMemoryAllocationHob (
+ PcdGet64 (PcdTrustedFWMemoryBase),
+ PcdGet64 (PcdTrustedFWMemorySize),
+ EfiReservedMemoryType
+ );
+ }
+
+ // Declare system memory
+ BuildResourceDescriptorHob (
+ EFI_RESOURCE_SYSTEM_MEMORY,
+ ( EFI_RESOURCE_ATTRIBUTE_PRESENT |
+ EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
+ EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |
+ EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |
+ EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE |
+ EFI_RESOURCE_ATTRIBUTE_TESTED ),
+ Base,
+ Size
+ );
+
+ // Build Memory Allocation Hob
+ InitMmu ();
+
+ // Optional feature that helps prevent EFI memory map fragmentation.
+ if (FeaturePcdGet (PcdPrePiProduceMemoryTypeInformationHob)) {
+ BuildMemoryTypeInformationHob ();
+ }
+
+ MoveNvStoreImage ();
+
+ return EFI_SUCCESS;
+}
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