Nt32Pkg/BootModePei/BootModePei.c

   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   BootMode.c
   9
  10 Abstract:
  11
  12   Tiano PEIM to provide the platform support functionality within Windows
  13
  14 **/
  15
  16
  17
  18 //
  19 // The package level header files this module uses
  20 //
  21 #include <PiPei.h>
  22 //
  23 // The protocols, PPI and GUID defintions for this module
  24 //
  25 #include <Ppi/MasterBootMode.h>
  26 #include <Ppi/BootInRecoveryMode.h>
  27 //
  28 // The Library classes this module consumes
  29 //
  30 #include <Library/DebugLib.h>
  31 #include <Library/PeimEntryPoint.h>
  32
  33
  34 //
  35 // Module globals
  36 //
  37 EFI_PEI_PPI_DESCRIPTOR  mPpiListBootMode = {
  38   (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
  39   &gEfiPeiMasterBootModePpiGuid,
  40   NULL
  41 };
  42
  43 EFI_PEI_PPI_DESCRIPTOR  mPpiListRecoveryBootMode = {
  44   (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
  45   &gEfiPeiBootInRecoveryModePpiGuid,
  46   NULL
  47 };
  48
  49 EFI_STATUS
  50 EFIAPI
  51 InitializeBootMode (
  52   IN       EFI_PEI_FILE_HANDLE  FileHandle,
  53   IN CONST EFI_PEI_SERVICES     **PeiServices
  54   )
  55 /*++
  56
  57 Routine Description:
  58
  59   Peform the boot mode determination logic
  60
  61 Arguments:
  62
  63   FileHandle  - Handle of the file being invoked.
  64   PeiServices - Describes the list of possible PEI Services.
  65
  66 Returns:
  67
  68   Status -  EFI_SUCCESS if the boot mode could be set
  69
  70 --*/
  71 {
  72   EFI_STATUS  Status;
  73   UINTN       BootMode;
  74
  75   DEBUG ((EFI_D_ERROR, "NT32 Boot Mode PEIM Loaded\n"));
  76
  77   //
  78   // Let's assume things are OK if not told otherwise
  79   // Should we read an environment variable in order to easily change this?
  80   //
  81   BootMode  = BOOT_WITH_FULL_CONFIGURATION;
  82
  83   Status    = (**PeiServices).SetBootMode (PeiServices, (UINT8) BootMode);
  84   ASSERT_EFI_ERROR (Status);
  85
  86   Status = (**PeiServices).InstallPpi (PeiServices, &mPpiListBootMode);
  87   ASSERT_EFI_ERROR (Status);
  88
  89   if (BootMode == BOOT_IN_RECOVERY_MODE) {
  90     Status = (**PeiServices).InstallPpi (PeiServices, &mPpiListRecoveryBootMode);
  91     ASSERT_EFI_ERROR (Status);
  92   }
  93
  94   return Status;
  95 }