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