1 /*++ @file 2 3 Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR> 4 Portions copyright (c) 2011, Apple Inc. All rights reserved. 5 This program and the accompanying materials 6 are licensed and made available under the terms and conditions of the BSD License 7 which accompanies this distribution. The full text of the license may be found at 8 http://opensource.org/licenses/bsd-license.php 9 10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 12 13 **/ 14 15 #include "PiPei.h" 16 #include <Ppi/EmuThunk.h> 17 #include <Library/DebugLib.h> 18 #include <Library/PeimEntryPoint.h> 19 #include <Library/HobLib.h> 20 #include <Library/PeiServicesLib.h> 21 #include <Library/PeiServicesTablePointerLib.h> 22 #include <Library/PcdLib.h> 23 24 EFI_STATUS 25 EFIAPI 26 PeimInitializeFirmwareVolumePei ( 27 IN EFI_PEI_FILE_HANDLE FileHandle, 28 IN CONST EFI_PEI_SERVICES **PeiServices 29 ) 30 /*++ 31 32 Routine Description: 33 Perform a call-back into the SEC simulator to get address of the Firmware Hub 34 35 Arguments: 36 FfsHeader - Ffs Header availible to every PEIM 37 PeiServices - General purpose services available to every PEIM. 38 39 Returns: 40 None 41 42 **/ 43 { 44 EFI_STATUS Status; 45 EFI_PEI_PPI_DESCRIPTOR *PpiDescriptor; 46 EMU_THUNK_PPI *Thunk; 47 EFI_PHYSICAL_ADDRESS FdBase; 48 EFI_PHYSICAL_ADDRESS FdFixUp; 49 EFI_FIRMWARE_VOLUME_HEADER *FvHeader; 50 UINT64 FdSize; 51 UINTN Index; 52 53 DEBUG ((EFI_D_ERROR, "Unix Firmware Volume PEIM Loaded\n")); 54 55 // 56 // Get the Fwh Information PPI 57 // 58 Status = PeiServicesLocatePpi ( 59 &gEmuThunkPpiGuid, // GUID 60 0, // INSTANCE 61 &PpiDescriptor, // EFI_PEI_PPI_DESCRIPTOR 62 (VOID **)&Thunk // PPI 63 ); 64 ASSERT_EFI_ERROR (Status); 65 66 Index = 0; 67 do { 68 // 69 // Get information about all the FD's in the system 70 // 71 Status = Thunk->FirmwareDevices (Index, &FdBase, &FdSize, &FdFixUp); 72 if (!EFI_ERROR (Status)) { 73 // 74 // Assume the FD starts with an FV header 75 // 76 FvHeader = (EFI_FIRMWARE_VOLUME_HEADER *) (UINTN) FdBase; 77 78 // 79 // Make an FV Hob for the first FV in the FD 80 // 81 BuildFvHob (FdBase, FvHeader->FvLength); 82 83 if (Index == 0) { 84 // 85 // Assume the first FD was produced by the NT32.DSC 86 // All these strange offests are needed to keep in 87 // sync with the FlashMap and NT32.dsc file 88 // 89 BuildResourceDescriptorHob ( 90 EFI_RESOURCE_FIRMWARE_DEVICE, 91 (EFI_RESOURCE_ATTRIBUTE_PRESENT | EFI_RESOURCE_ATTRIBUTE_INITIALIZED | EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE), 92 FdBase, 93 ( 94 FvHeader->FvLength + 95 PcdGet32 (PcdFlashNvStorageVariableSize) + 96 PcdGet32 (PcdFlashNvStorageFtwWorkingSize) + 97 PcdGet32 (PcdFlashNvStorageFtwSpareSize) + 98 PcdGet32 (PcdEmuFlashNvStorageEventLogSize) 99 ) 100 ); 101 102 // 103 // Hard code the address of the spare block and variable services. 104 // Assume it's a hard coded offset from FV0 in FD0. 105 // 106 FdSize = 107 PcdGet32 (PcdFlashNvStorageVariableSize) + 108 PcdGet32 (PcdFlashNvStorageFtwWorkingSize) + 109 PcdGet32 (PcdFlashNvStorageFtwSpareSize) + 110 PcdGet32 (PcdEmuFlashNvStorageEventLogSize); 111 112 BuildFvHob (FdFixUp + PcdGet64 (PcdEmuFlashNvStorageVariableBase), FdSize); 113 } else { 114 // 115 // For other FD's just map them in. 116 // 117 BuildResourceDescriptorHob ( 118 EFI_RESOURCE_FIRMWARE_DEVICE, 119 (EFI_RESOURCE_ATTRIBUTE_PRESENT | EFI_RESOURCE_ATTRIBUTE_INITIALIZED | EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE), 120 FdBase, 121 FdSize 122 ); 123 } 124 } 125 126 Index++; 127 } while (!EFI_ERROR (Status)); 128 129 return Status; 130 } 131
