| Vishal Bhoj | 82c8071 | 2015-12-15 21:13:33 +0530 | [diff] [blame^] | 1 | /**@file
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| 2 |
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| 3 | Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
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| 4 | This program and the accompanying materials
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| 5 | are licensed and made available under the terms and conditions of the BSD License
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| 6 | which accompanies this distribution. The full text of the license may be found at
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| 7 | http://opensource.org/licenses/bsd-license.php
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| 8 |
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| 9 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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| 10 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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| 11 |
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| 12 | Module Name:
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| 13 | WinNtFwh.c
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| 14 |
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| 15 | Abstract:
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| 16 | PEIM to abstract construction of firmware volume in a Windows NT environment.
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| 17 |
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| 18 | Revision History
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| 19 |
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| 20 | **/
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| 21 |
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| 22 | //
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| 23 | // The package level header files this module uses
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| 24 | //
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| 25 | #include <PiPei.h>
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| 26 | #include <WinNtPeim.h>
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| 27 | //
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| 28 | // The protocols, PPI and GUID defintions for this module
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| 29 | //
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| 30 | #include <Ppi/NtFwh.h>
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| 31 | //
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| 32 | // The Library classes this module consumes
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| 33 | //
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| 34 | #include <Library/DebugLib.h>
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| 35 | #include <Library/PeimEntryPoint.h>
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| 36 | #include <Library/HobLib.h>
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| 37 | #include <Library/PcdLib.h>
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| 38 |
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| 39 | EFI_STATUS
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| 40 | EFIAPI
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| 41 | PeimInitializeWinNtFwh (
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| 42 | IN EFI_FFS_FILE_HEADER *FfsHeader,
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| 43 | IN EFI_PEI_SERVICES **PeiServices
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| 44 | )
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| 45 | /*++
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| 46 |
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| 47 | Routine Description:
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| 48 | Perform a call-back into the SEC simulator to get address of the Firmware Hub
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| 49 |
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| 50 | Arguments:
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| 51 | FfsHeader - Ffs Header availible to every PEIM
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| 52 | PeiServices - General purpose services available to every PEIM.
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| 53 |
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| 54 | Returns:
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| 55 | None
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| 56 |
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| 57 | --*/
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| 58 | {
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| 59 | EFI_STATUS Status;
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| 60 | EFI_PEI_PPI_DESCRIPTOR *PpiDescriptor;
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| 61 | NT_FWH_PPI *FwhPpi;
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| 62 | EFI_PHYSICAL_ADDRESS FdBase;
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| 63 | EFI_FIRMWARE_VOLUME_HEADER *FvHeader;
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| 64 | UINT64 FdSize;
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| 65 | UINTN Index;
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| 66 |
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| 67 | DEBUG ((EFI_D_ERROR, "NT 32 Firmware Volume PEIM Loaded\n"));
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| 68 |
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| 69 | //
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| 70 | // Get the Fwh Information PPI
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| 71 | //
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| 72 | Status = (**PeiServices).LocatePpi (
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| 73 | (const EFI_PEI_SERVICES **)PeiServices,
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| 74 | &gNtFwhPpiGuid, // GUID
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| 75 | 0, // INSTANCE
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| 76 | &PpiDescriptor, // EFI_PEI_PPI_DESCRIPTOR
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| 77 | (VOID**)&FwhPpi // PPI
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| 78 | );
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| 79 | ASSERT_EFI_ERROR (Status);
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| 80 |
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| 81 | Index = 0;
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| 82 | do {
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| 83 | //
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| 84 | // Get information about all the FD's in the system
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| 85 | //
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| 86 | Status = FwhPpi->NtFwh (Index, &FdBase, &FdSize);
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| 87 | if (!EFI_ERROR (Status)) {
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| 88 | //
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| 89 | // Assume the FD starts with an FV header
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| 90 | //
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| 91 | FvHeader = (EFI_FIRMWARE_VOLUME_HEADER *) (UINTN) FdBase;
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| 92 |
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| 93 | //
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| 94 | // Make an FV Hob for the first FV in the FD
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| 95 | //
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| 96 | BuildFvHob (FdBase, FvHeader->FvLength);
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| 97 |
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| 98 | if (Index == 0) {
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| 99 | //
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| 100 | // Assume the first FD was produced by the NT32.DSC
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| 101 | // All these strange offests are needed to keep in
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| 102 | // sync with the FlashMap and NT32.dsc file
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| 103 | //
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| 104 | BuildResourceDescriptorHob (
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| 105 | EFI_RESOURCE_FIRMWARE_DEVICE,
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| 106 | (EFI_RESOURCE_ATTRIBUTE_PRESENT | EFI_RESOURCE_ATTRIBUTE_INITIALIZED | EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE),
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| 107 | FdBase,
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| 108 | (
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| 109 | FvHeader->FvLength +
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| 110 | PcdGet32 (PcdFlashNvStorageVariableSize) +
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| 111 | PcdGet32 (PcdFlashNvStorageFtwWorkingSize) +
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| 112 | PcdGet32 (PcdFlashNvStorageFtwSpareSize) +
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| 113 | PcdGet32 (PcdWinNtFlashNvStorageEventLogSize)
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| 114 | )
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| 115 | );
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| 116 | //
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| 117 | // Hard code the address of the spare block and variable services.
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| 118 | // Assume it's a hard coded offset from FV0 in FD0.
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| 119 | //
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| 120 | FdSize =
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| 121 | PcdGet32 (PcdFlashNvStorageVariableSize) +
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| 122 | PcdGet32 (PcdFlashNvStorageFtwWorkingSize) +
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| 123 | PcdGet32 (PcdFlashNvStorageFtwSpareSize) +
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| 124 | PcdGet32 (PcdWinNtFlashNvStorageEventLogSize);
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| 125 |
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| 126 | BuildFvHob (FdBase + PcdGet32 (PcdWinNtFlashNvStorageVariableBase), FdSize);
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| 127 | } else {
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| 128 | //
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| 129 | // For other FD's just map them in.
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| 130 | //
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| 131 | BuildResourceDescriptorHob (
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| 132 | EFI_RESOURCE_FIRMWARE_DEVICE,
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| 133 | (EFI_RESOURCE_ATTRIBUTE_PRESENT | EFI_RESOURCE_ATTRIBUTE_INITIALIZED | EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE),
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| 134 | FdBase,
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| 135 | FdSize
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| 136 | );
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| 137 | }
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| 138 | }
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| 139 |
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| 140 | Index++;
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| 141 | } while (!EFI_ERROR (Status));
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| 142 |
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| 143 | return Status;
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| 144 | }
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