1 /**@file 2 3 Copyright (c) 2006, Intel Corporation. All rights reserved.<BR> 4 This program and the accompanying materials 5 are licensed and made available under the terms and conditions of the BSD License 6 which accompanies this distribution. The full text of the license may be found at 7 http://opensource.org/licenses/bsd-license.php 8 9 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 10 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 11 12 Module Name: 13 WinNtFwh.c 14 15 Abstract: 16 PEIM to abstract construction of firmware volume in a Windows NT environment. 17 18 Revision History 19 20 **/ 21 22 // 23 // The package level header files this module uses 24 // 25 #include <PiPei.h> 26 #include <WinNtPeim.h> 27 // 28 // The protocols, PPI and GUID defintions for this module 29 // 30 #include <Ppi/NtFwh.h> 31 // 32 // The Library classes this module consumes 33 // 34 #include <Library/DebugLib.h> 35 #include <Library/PeimEntryPoint.h> 36 #include <Library/HobLib.h> 37 #include <Library/PcdLib.h> 38 39 EFI_STATUS 40 EFIAPI 41 PeimInitializeWinNtFwh ( 42 IN EFI_FFS_FILE_HEADER *FfsHeader, 43 IN EFI_PEI_SERVICES **PeiServices 44 ) 45 /*++ 46 47 Routine Description: 48 Perform a call-back into the SEC simulator to get address of the Firmware Hub 49 50 Arguments: 51 FfsHeader - Ffs Header available to every PEIM 52 PeiServices - General purpose services available to every PEIM. 53 54 Returns: 55 None 56 57 --*/ 58 { 59 EFI_STATUS Status; 60 EFI_PEI_PPI_DESCRIPTOR *PpiDescriptor; 61 NT_FWH_PPI *FwhPpi; 62 EFI_PHYSICAL_ADDRESS FdBase; 63 EFI_FIRMWARE_VOLUME_HEADER *FvHeader; 64 UINT64 FdSize; 65 UINTN Index; 66 67 DEBUG ((EFI_D_ERROR, "NT 32 Firmware Volume PEIM Loaded\n")); 68 69 // 70 // Get the Fwh Information PPI 71 // 72 Status = (**PeiServices).LocatePpi ( 73 (const EFI_PEI_SERVICES **)PeiServices, 74 &gNtFwhPpiGuid, // GUID 75 0, // INSTANCE 76 &PpiDescriptor, // EFI_PEI_PPI_DESCRIPTOR 77 (VOID**)&FwhPpi // PPI 78 ); 79 ASSERT_EFI_ERROR (Status); 80 81 Index = 0; 82 do { 83 // 84 // Get information about all the FD's in the system 85 // 86 Status = FwhPpi->NtFwh (Index, &FdBase, &FdSize); 87 if (!EFI_ERROR (Status)) { 88 // 89 // Assume the FD starts with an FV header 90 // 91 FvHeader = (EFI_FIRMWARE_VOLUME_HEADER *) (UINTN) FdBase; 92 93 // 94 // Make an FV Hob for the first FV in the FD 95 // 96 BuildFvHob (FdBase, FvHeader->FvLength); 97 98 if (Index == 0) { 99 // 100 // Assume the first FD was produced by the NT32.DSC 101 // All these strange offests are needed to keep in 102 // sync with the FlashMap and NT32.dsc file 103 // 104 BuildResourceDescriptorHob ( 105 EFI_RESOURCE_FIRMWARE_DEVICE, 106 (EFI_RESOURCE_ATTRIBUTE_PRESENT | EFI_RESOURCE_ATTRIBUTE_INITIALIZED | EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE), 107 FdBase, 108 ( 109 FvHeader->FvLength + 110 PcdGet32 (PcdFlashNvStorageVariableSize) + 111 PcdGet32 (PcdFlashNvStorageFtwWorkingSize) + 112 PcdGet32 (PcdFlashNvStorageFtwSpareSize) + 113 PcdGet32 (PcdWinNtFlashNvStorageEventLogSize) 114 ) 115 ); 116 // 117 // Hard code the address of the spare block and variable services. 118 // Assume it's a hard coded offset from FV0 in FD0. 119 // 120 FdSize = 121 PcdGet32 (PcdFlashNvStorageVariableSize) + 122 PcdGet32 (PcdFlashNvStorageFtwWorkingSize) + 123 PcdGet32 (PcdFlashNvStorageFtwSpareSize) + 124 PcdGet32 (PcdWinNtFlashNvStorageEventLogSize); 125 126 BuildFvHob (FdBase + PcdGet32 (PcdWinNtFlashNvStorageVariableBase), FdSize); 127 } else { 128 // 129 // For other FD's just map them in. 130 // 131 BuildResourceDescriptorHob ( 132 EFI_RESOURCE_FIRMWARE_DEVICE, 133 (EFI_RESOURCE_ATTRIBUTE_PRESENT | EFI_RESOURCE_ATTRIBUTE_INITIALIZED | EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE), 134 FdBase, 135 FdSize 136 ); 137 } 138 } 139 140 Index++; 141 } while (!EFI_ERROR (Status)); 142 143 return Status; 144 } 145
