| /*++ | |
| Copyright (c) 2006, Intel Corporation | |
| All rights reserved. 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. | |
| Module Name: | |
| WinNtAutoscan.c | |
| Abstract: | |
| This PEIM to abstract memory auto-scan in a Windows NT environment. | |
| Revision History | |
| --*/ | |
| // | |
| // The package level header files this module uses | |
| // | |
| #include <PiPei.h> | |
| #include <WinNtPeim.h> | |
| // | |
| // The protocols, PPI and GUID defintions for this module | |
| // | |
| #include <Ppi/BaseMemoryTest.h> | |
| #include <Ppi/NtAutoscan.h> | |
| // | |
| // The Library classes this module consumes | |
| // | |
| #include <Library/DebugLib.h> | |
| #include <Library/PeimEntryPoint.h> | |
| #include <Library/HobLib.h> | |
| EFI_STATUS | |
| EFIAPI | |
| PeimInitializeWinNtAutoScan ( | |
| IN EFI_FFS_FILE_HEADER *FfsHeader, | |
| IN EFI_PEI_SERVICES **PeiServices | |
| ) | |
| /*++ | |
| Routine Description: | |
| Perform a call-back into the SEC simulator to get a memory value | |
| Arguments: | |
| FfsHeader - General purpose data available to every PEIM | |
| PeiServices - General purpose services available to every PEIM. | |
| Returns: | |
| None | |
| --*/ | |
| { | |
| EFI_STATUS Status; | |
| EFI_PEI_PPI_DESCRIPTOR *PpiDescriptor; | |
| PEI_NT_AUTOSCAN_PPI *PeiNtService; | |
| UINT64 MemorySize; | |
| EFI_PHYSICAL_ADDRESS MemoryBase; | |
| PEI_BASE_MEMORY_TEST_PPI *MemoryTestPpi; | |
| EFI_PHYSICAL_ADDRESS ErrorAddress; | |
| UINTN Index; | |
| EFI_RESOURCE_ATTRIBUTE_TYPE Attributes; | |
| DEBUG ((EFI_D_ERROR, "NT 32 Autoscan PEIM Loaded\n")); | |
| // | |
| // Get the PEI NT Autoscan PPI | |
| // | |
| Status = (**PeiServices).LocatePpi ( | |
| PeiServices, | |
| &gPeiNtAutoScanPpiGuid, // GUID | |
| 0, // INSTANCE | |
| &PpiDescriptor, // EFI_PEI_PPI_DESCRIPTOR | |
| &PeiNtService // PPI | |
| ); | |
| ASSERT_EFI_ERROR (Status); | |
| // | |
| // Get the Memory Test PPI | |
| // | |
| Status = (**PeiServices).LocatePpi ( | |
| PeiServices, | |
| &gPeiBaseMemoryTestPpiGuid, | |
| 0, | |
| NULL, | |
| &MemoryTestPpi | |
| ); | |
| ASSERT_EFI_ERROR (Status); | |
| Index = 0; | |
| do { | |
| Status = PeiNtService->NtAutoScan (Index, &MemoryBase, &MemorySize); | |
| if (!EFI_ERROR (Status)) { | |
| Attributes = | |
| ( | |
| EFI_RESOURCE_ATTRIBUTE_PRESENT | | |
| EFI_RESOURCE_ATTRIBUTE_INITIALIZED | | |
| EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE | | |
| EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE | | |
| EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE | | |
| EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE | |
| ); | |
| if (Index == 0) { | |
| // | |
| // For the first area register it as PEI tested memory | |
| // | |
| Status = MemoryTestPpi->BaseMemoryTest ( | |
| PeiServices, | |
| MemoryTestPpi, | |
| MemoryBase, | |
| MemorySize, | |
| Quick, | |
| &ErrorAddress | |
| ); | |
| ASSERT_EFI_ERROR (Status); | |
| // | |
| // Register the "tested" memory with the PEI Core | |
| // | |
| Status = (**PeiServices).InstallPeiMemory (PeiServices, MemoryBase, MemorySize); | |
| ASSERT_EFI_ERROR (Status); | |
| Attributes |= EFI_RESOURCE_ATTRIBUTE_TESTED; | |
| } | |
| BuildResourceDescriptorHob ( | |
| EFI_RESOURCE_SYSTEM_MEMORY, | |
| Attributes, | |
| MemoryBase, | |
| MemorySize | |
| ); | |
| } | |
| Index++; | |
| } while (!EFI_ERROR (Status)); | |
| // | |
| // Build the CPU hob with 36-bit addressing and 16-bits of IO space. | |
| // | |
| BuildCpuHob (36, 16); | |
| return Status; | |
| } |