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- /*++ @file
- Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
- Portions copyright (c) 2011, Apple Inc. All rights reserved.
- SPDX-License-Identifier: BSD-2-Clause-Patent
- **/
- #include "PiPei.h"
- #include <Ppi/EmuThunk.h>
- #include <Library/DebugLib.h>
- #include <Library/PeimEntryPoint.h>
- #include <Library/HobLib.h>
- #include <Library/PeiServicesLib.h>
- #include <Library/PeiServicesTablePointerLib.h>
- #include <Library/PcdLib.h>
- EFI_STATUS
- EFIAPI
- PeimInitializeFirmwareVolumePei (
- IN EFI_PEI_FILE_HANDLE FileHandle,
- IN CONST EFI_PEI_SERVICES **PeiServices
- )
- /*++
- Routine Description:
- Perform a call-back into the SEC simulator to get address of the Firmware Hub
- Arguments:
- FfsHeader - Ffs Header available to every PEIM
- PeiServices - General purpose services available to every PEIM.
- Returns:
- None
- **/
- {
- EFI_STATUS Status;
- EFI_PEI_PPI_DESCRIPTOR *PpiDescriptor;
- EMU_THUNK_PPI *Thunk;
- EFI_PHYSICAL_ADDRESS FdBase;
- EFI_PHYSICAL_ADDRESS FdFixUp;
- EFI_FIRMWARE_VOLUME_HEADER *FvHeader;
- UINT64 FdSize;
- UINTN Index;
- DEBUG ((DEBUG_ERROR, "Unix Firmware Volume PEIM Loaded\n"));
- //
- // Get the Fwh Information PPI
- //
- Status = PeiServicesLocatePpi (
- &gEmuThunkPpiGuid, // GUID
- 0, // INSTANCE
- &PpiDescriptor, // EFI_PEI_PPI_DESCRIPTOR
- (VOID **)&Thunk // PPI
- );
- ASSERT_EFI_ERROR (Status);
- Index = 0;
- do {
- //
- // Get information about all the FD's in the system
- //
- Status = Thunk->FirmwareDevices (Index, &FdBase, &FdSize, &FdFixUp);
- if (!EFI_ERROR (Status)) {
- //
- // Assume the FD starts with an FV header
- //
- FvHeader = (EFI_FIRMWARE_VOLUME_HEADER *)(UINTN)FdBase;
- //
- // Make an FV Hob for the first FV in the FD
- //
- BuildFvHob (FdBase, FvHeader->FvLength);
- if (Index == 0) {
- //
- // Assume the first FD was produced by the NT32.DSC
- // All these strange offests are needed to keep in
- // sync with the FlashMap and NT32.dsc file
- //
- BuildResourceDescriptorHob (
- EFI_RESOURCE_FIRMWARE_DEVICE,
- (EFI_RESOURCE_ATTRIBUTE_PRESENT | EFI_RESOURCE_ATTRIBUTE_INITIALIZED | EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE),
- FdBase,
- (
- FvHeader->FvLength +
- PcdGet32 (PcdFlashNvStorageVariableSize) +
- PcdGet32 (PcdFlashNvStorageFtwWorkingSize) +
- PcdGet32 (PcdFlashNvStorageFtwSpareSize) +
- PcdGet32 (PcdEmuFlashNvStorageEventLogSize)
- )
- );
- //
- // Hard code the address of the spare block and variable services.
- // Assume it's a hard coded offset from FV0 in FD0.
- //
- FdSize =
- PcdGet32 (PcdFlashNvStorageVariableSize) +
- PcdGet32 (PcdFlashNvStorageFtwWorkingSize) +
- PcdGet32 (PcdFlashNvStorageFtwSpareSize) +
- PcdGet32 (PcdEmuFlashNvStorageEventLogSize);
- BuildFvHob (FdFixUp + PcdGet64 (PcdEmuFlashNvStorageVariableBase), FdSize);
- } else {
- //
- // For other FD's just map them in.
- //
- BuildResourceDescriptorHob (
- EFI_RESOURCE_FIRMWARE_DEVICE,
- (EFI_RESOURCE_ATTRIBUTE_PRESENT | EFI_RESOURCE_ATTRIBUTE_INITIALIZED | EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE),
- FdBase,
- FdSize
- );
- }
- }
- Index++;
- } while (!EFI_ERROR (Status));
- return Status;
- }
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