Nt32Pkg/Include/Ppi/NtAutoscan.h

   1 /**@file
   2
   3 Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
   4 SPDX-License-Identifier: BSD-2-Clause-Patent
   5
   6 Module Name:
   7
   8   NtAutoscan.h
   9
  10 Abstract:
  11
  12 Nt Autoscan PPI
  13
  14 **/
  15
  16 #ifndef __NT_PEI_AUTOSCAN_H__
  17 #define __NT_PEI_AUTOSCAN_H__
  18
  19 #include <WinNtDxe.h>
  20
  21 #define PEI_NT_AUTOSCAN_PPI_GUID \
  22   { \
  23     0xdce384d, 0x7c, 0x4ba5, {0x94, 0xbd, 0xf, 0x6e, 0xb6, 0x4d, 0x2a, 0xa9 } \
  24   }
  25
  26 typedef
  27 EFI_STATUS
  28 (EFIAPI *PEI_NT_AUTOSCAN) (
  29   IN  UINTN                 Index,
  30   OUT EFI_PHYSICAL_ADDRESS  * MemoryBase,
  31   OUT UINT64                *MemorySize
  32   );
  33
  34 /*++
  35
  36 Routine Description:
  37   This service is called from Index == 0 until it returns EFI_UNSUPPORTED.
  38   It allows discontinuous memory regions to be supported by the emulator.
  39   It uses gSystemMemory[] and gSystemMemoryCount that were created by
  40   parsing the Windows environment variable EFI_MEMORY_SIZE.
  41   The size comes from the varaible and the address comes from the call to
  42   WinNtOpenFile.
  43
  44 Arguments:
  45   Index      - Which memory region to use
  46   MemoryBase - Return Base address of memory region
  47   MemorySize - Return size in bytes of the memory region
  48
  49 Returns:
  50   EFI_SUCCESS - If memory region was mapped
  51   EFI_UNSUPPORTED - If Index is not supported
  52
  53 --*/
  54 typedef struct {
  55   PEI_NT_AUTOSCAN NtAutoScan;
  56 } PEI_NT_AUTOSCAN_PPI;
  57
  58 extern EFI_GUID gPeiNtAutoScanPpiGuid;
  59
  60 #endif