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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 ((EFI_D_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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