/** @file\r
*\r
* Copyright (c) 2011, ARM Limited. All rights reserved.\r
-* \r
-* This program and the accompanying materials \r
-* are licensed and made available under the terms and conditions of the BSD License \r
-* which accompanies this distribution. The full text of the license may be found at \r
-* http://opensource.org/licenses/bsd-license.php \r
*\r
-* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
-* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
+* This program and the accompanying materials\r
+* are licensed and made available under the terms and conditions of the BSD License\r
+* which accompanies this distribution. The full text of the license may be found at\r
+* http://opensource.org/licenses/bsd-license.php\r
+*\r
+* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
*\r
**/\r
\r
Info[7].NumberOfPages = PcdGet32 (PcdMemoryTypeEfiLoaderCode);\r
Info[8].Type = EfiLoaderData;\r
Info[8].NumberOfPages = PcdGet32 (PcdMemoryTypeEfiLoaderData);\r
- \r
+\r
// Terminator for the list\r
Info[9].Type = EfiMaxMemoryType;\r
Info[9].NumberOfPages = 0;\r
\r
Routine Description:\r
\r
- \r
+\r
\r
Arguments:\r
\r
FileHandle - Handle of the file being invoked.\r
PeiServices - Describes the list of possible PEI Services.\r
- \r
+\r
Returns:\r
\r
Status - EFI_SUCCESS if the boot mode could be set\r
)\r
{\r
EFI_STATUS Status;\r
- EFI_RESOURCE_ATTRIBUTE_TYPE Attributes;\r
- ARM_SYSTEM_MEMORY_REGION_DESCRIPTOR* EfiMemoryMap;\r
- UINTN Index;\r
- UINTN SystemMemoryTop;\r
+ UINTN SystemMemoryBase;\r
+ UINT64 SystemMemoryTop;\r
+ UINTN FdBase;\r
+ UINTN FdTop;\r
UINTN UefiMemoryBase;\r
- UINTN UefiMemorySize;\r
\r
- DEBUG ((EFI_D_ERROR, "Memory Init PEIM Loaded\n"));\r
+ DEBUG ((EFI_D_LOAD | EFI_D_INFO, "Memory Init PEIM Loaded\n"));\r
\r
// Ensure PcdSystemMemorySize has been set\r
- ASSERT (FixedPcdGet32 (PcdSystemMemorySize) != 0);\r
-\r
- SystemMemoryTop = (UINTN)FixedPcdGet32 (PcdSystemMemoryBase) + (UINTN)FixedPcdGet32 (PcdSystemMemorySize);\r
+ ASSERT (PcdGet64 (PcdSystemMemorySize) != 0);\r
+ ASSERT (PcdGet64 (PcdSystemMemoryBase) < (UINT64)MAX_ADDRESS);\r
\r
- //\r
- // Initialize the System Memory (DRAM)\r
- //\r
- if (FeaturePcdGet(PcdStandalone)) {\r
- // In case of a standalone version, the DRAM is already initialized\r
- ArmPlatformInitializeSystemMemory();\r
+ SystemMemoryBase = (UINTN)PcdGet64 (PcdSystemMemoryBase);\r
+ SystemMemoryTop = SystemMemoryBase + PcdGet64 (PcdSystemMemorySize);\r
+ if (SystemMemoryTop - 1 > MAX_ADDRESS) {\r
+ SystemMemoryTop = (UINT64)MAX_ADDRESS + 1;\r
}\r
+ FdBase = (UINTN)PcdGet64 (PcdFdBaseAddress);\r
+ FdTop = FdBase + (UINTN)PcdGet32 (PcdFdSize);\r
\r
//\r
// Declare the UEFI memory to PEI\r
//\r
- if (FeaturePcdGet(PcdStandalone)) {\r
- // In case of standalone UEFI, we set the UEFI memory region at the top of the DRAM\r
- UefiMemoryBase = SystemMemoryTop - FixedPcdGet32 (PcdSystemMemoryUefiRegionSize);\r
+\r
+ // In case the firmware has been shadowed in the System Memory\r
+ if ((FdBase >= SystemMemoryBase) && (FdTop <= SystemMemoryTop)) {\r
+ // Check if there is enough space between the top of the system memory and the top of the\r
+ // firmware to place the UEFI memory (for PEI & DXE phases)\r
+ if (SystemMemoryTop - FdTop >= FixedPcdGet32 (PcdSystemMemoryUefiRegionSize)) {\r
+ UefiMemoryBase = SystemMemoryTop - FixedPcdGet32 (PcdSystemMemoryUefiRegionSize);\r
+ } else {\r
+ // Check there is enough space for the UEFI memory\r
+ ASSERT (SystemMemoryBase + FixedPcdGet32 (PcdSystemMemoryUefiRegionSize) <= FdBase);\r
+\r
+ UefiMemoryBase = FdBase - FixedPcdGet32 (PcdSystemMemoryUefiRegionSize);\r
+ }\r
} else {\r
- // In case of a non standalone UEFI, we set the UEFI memory below the Firmware Volume\r
- UefiMemoryBase = FixedPcdGet32 (PcdNormalFdBaseAddress) - FixedPcdGet32 (PcdSystemMemoryUefiRegionSize);\r
+ // Check the Firmware does not overlapped with the system memory\r
+ ASSERT ((FdBase < SystemMemoryBase) || (FdBase >= SystemMemoryTop));\r
+ ASSERT ((FdTop <= SystemMemoryBase) || (FdTop > SystemMemoryTop));\r
+\r
+ UefiMemoryBase = SystemMemoryTop - FixedPcdGet32 (PcdSystemMemoryUefiRegionSize);\r
}\r
- Status = PeiServicesInstallPeiMemory (UefiMemoryBase,FixedPcdGet32 (PcdSystemMemoryUefiRegionSize));\r
+\r
+ Status = PeiServicesInstallPeiMemory (UefiMemoryBase, FixedPcdGet32 (PcdSystemMemoryUefiRegionSize));\r
ASSERT_EFI_ERROR (Status);\r
\r
// Initialize MMU and Memory HOBs (Resource Descriptor HOBs)\r