mirror of https://github.com/acidanthera/audk.git
139 lines
3.9 KiB
C
139 lines
3.9 KiB
C
/**@file
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Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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Module Name:
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WinNtFwh.c
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Abstract:
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PEIM to abstract construction of firmware volume in a Windows NT environment.
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Revision History
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**/
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//
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// The package level header files this module uses
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//
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#include <PiPei.h>
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#include <WinNtPeim.h>
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//
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// The protocols, PPI and GUID defintions for this module
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//
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#include <Ppi/NtFwh.h>
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//
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// The Library classes this module consumes
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//
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#include <Library/DebugLib.h>
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#include <Library/PeimEntryPoint.h>
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#include <Library/HobLib.h>
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#include <Library/PcdLib.h>
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EFI_STATUS
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EFIAPI
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PeimInitializeWinNtFwh (
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IN EFI_FFS_FILE_HEADER *FfsHeader,
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IN EFI_PEI_SERVICES **PeiServices
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)
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/*++
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Routine Description:
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Perform a call-back into the SEC simulator to get address of the Firmware Hub
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Arguments:
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FfsHeader - Ffs Header available to every PEIM
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PeiServices - General purpose services available to every PEIM.
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Returns:
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None
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--*/
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{
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EFI_STATUS Status;
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EFI_PEI_PPI_DESCRIPTOR *PpiDescriptor;
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NT_FWH_PPI *FwhPpi;
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EFI_PHYSICAL_ADDRESS FdBase;
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EFI_FIRMWARE_VOLUME_HEADER *FvHeader;
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UINT64 FdSize;
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UINTN Index;
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DEBUG ((EFI_D_ERROR, "NT 32 Firmware Volume PEIM Loaded\n"));
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//
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// Get the Fwh Information PPI
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//
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Status = (**PeiServices).LocatePpi (
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(const EFI_PEI_SERVICES **)PeiServices,
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&gNtFwhPpiGuid, // GUID
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0, // INSTANCE
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&PpiDescriptor, // EFI_PEI_PPI_DESCRIPTOR
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(VOID**)&FwhPpi // PPI
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);
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ASSERT_EFI_ERROR (Status);
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Index = 0;
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do {
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//
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// Get information about all the FD's in the system
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//
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Status = FwhPpi->NtFwh (Index, &FdBase, &FdSize);
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if (!EFI_ERROR (Status)) {
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//
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// Assume the FD starts with an FV header
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//
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FvHeader = (EFI_FIRMWARE_VOLUME_HEADER *) (UINTN) FdBase;
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//
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// Make an FV Hob for the first FV in the FD
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//
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BuildFvHob (FdBase, FvHeader->FvLength);
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if (Index == 0) {
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//
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// Assume the first FD was produced by the NT32.DSC
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// All these strange offests are needed to keep in
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// sync with the FlashMap and NT32.dsc file
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//
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BuildResourceDescriptorHob (
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EFI_RESOURCE_FIRMWARE_DEVICE,
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(EFI_RESOURCE_ATTRIBUTE_PRESENT | EFI_RESOURCE_ATTRIBUTE_INITIALIZED | EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE),
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FdBase,
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(
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FvHeader->FvLength +
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PcdGet32 (PcdFlashNvStorageVariableSize) +
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PcdGet32 (PcdFlashNvStorageFtwWorkingSize) +
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PcdGet32 (PcdFlashNvStorageFtwSpareSize) +
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PcdGet32 (PcdWinNtFlashNvStorageEventLogSize)
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)
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);
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//
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// Hard code the address of the spare block and variable services.
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// Assume it's a hard coded offset from FV0 in FD0.
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//
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FdSize =
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PcdGet32 (PcdFlashNvStorageVariableSize) +
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PcdGet32 (PcdFlashNvStorageFtwWorkingSize) +
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PcdGet32 (PcdFlashNvStorageFtwSpareSize) +
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PcdGet32 (PcdWinNtFlashNvStorageEventLogSize);
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BuildFvHob (FdBase + PcdGet32 (PcdWinNtFlashNvStorageVariableBase), FdSize);
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} else {
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//
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// For other FD's just map them in.
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//
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BuildResourceDescriptorHob (
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EFI_RESOURCE_FIRMWARE_DEVICE,
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(EFI_RESOURCE_ATTRIBUTE_PRESENT | EFI_RESOURCE_ATTRIBUTE_INITIALIZED | EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE),
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FdBase,
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FdSize
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);
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}
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}
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Index++;
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} while (!EFI_ERROR (Status));
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return Status;
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}
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