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/** @file
Emulator Thunk to abstract OS services from pure EFI code
Copyright (c) 2008 - 2011, Apple Inc. All rights reserved.<BR>
Copyright (c) 2022, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef __EMU_THUNK_PPI_H__
#define __EMU_THUNK_PPI_H__
#define EMU_THUNK_PPI_GUID \
{ 0xB958B78C, 0x1D3E, 0xEE40, { 0x8B, 0xF4, 0xF0, 0x63, 0x2D, 0x06, 0x39, 0x16 } }
/*++
Routine Description:
This service is called from Index == 0 until it returns EFI_UNSUPPORTED.
It allows discontinuous memory regions to be supported by the emulator.
Arguments:
Index - Which memory region to use
MemoryBase - Return Base address of memory region
MemorySize - Return size in bytes of the memory region
Returns:
EFI_SUCCESS - If memory region was mapped
EFI_UNSUPPORTED - If Index is not supported
**/
typedef
EFI_STATUS
(EFIAPI *EMU_PEI_AUTOSCAN)(
IN UINTN Index,
OUT EFI_PHYSICAL_ADDRESS *MemoryBase,
OUT UINT64 *MemorySize
);
/*++
Routine Description:
Return the FD Size and base address. Since the FD is loaded from a
file into host memory only the SEC will know it's address.
Arguments:
Index - Which FD, starts at zero.
FdSize - Size of the FD in bytes
FdBase - Start address of the FD. Assume it points to an FV Header
FixUp - Difference between actual FD address and build address
Returns:
EFI_SUCCESS - Return the Base address and size of the FV
EFI_UNSUPPORTED - Index does nto map to an FD in the system
**/
typedef
EFI_STATUS
(EFIAPI *EMU_PEI_FD_INFORMATION)(
IN UINTN Index,
IN OUT EFI_PHYSICAL_ADDRESS *FdBase,
IN OUT UINT64 *FdSize,
IN OUT EFI_PHYSICAL_ADDRESS *FixUp
);
/*++
Routine Description:
Export of EMU_THUNK_PROTOCOL from the SEC.
Returns:
EFI_SUCCESS - Data returned
**/
typedef
VOID *
(EFIAPI *EMU_PEI_THUNK_INTERFACE)(
VOID
);
/*++
Routine Description:
Loads and relocates a PE/COFF image into memory.
Arguments:
Pe32Data - The base address of the PE/COFF file that is to be loaded and relocated
ImageAddress - The base address of the relocated PE/COFF image
ImageSize - The size of the relocated PE/COFF image
EntryPoint - The entry point of the relocated PE/COFF image
Returns:
EFI_SUCCESS - The file was loaded and relocated
EFI_OUT_OF_RESOURCES - There was not enough memory to load and relocate the PE/COFF file
**/
typedef
EFI_STATUS
(EFIAPI *EMU_PEI_LOAD_FILE)(
VOID *Pe32Data,
EFI_PHYSICAL_ADDRESS *ImageAddress,
UINT64 *ImageSize,
EFI_PHYSICAL_ADDRESS *EntryPoint
);
typedef struct {
EMU_PEI_AUTOSCAN MemoryAutoScan;
EMU_PEI_FD_INFORMATION FirmwareDevices;
EMU_PEI_THUNK_INTERFACE Thunk;
UINTN PersistentMemorySize;
UINT8 PersistentMemory[0];
} EMU_THUNK_PPI;
extern EFI_GUID gEmuThunkPpiGuid;
#endif
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