IntelSiliconPkg/Feature/VTd/PlatformVTdInfoSamplePei/PlatformVTdInfoSamplePei.c

   1 /** @file
   2   Platform VTd Info Sample PEI driver.
   3
   4   Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>
   5   This program and the accompanying materials
   6   are licensed and made available under the terms and conditions of the BSD License
   7   which accompanies this distribution.  The full text of the license may be found at
   8   http://opensource.org/licenses/bsd-license.php
   9
  10   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12
  13 **/
  14
  15 #include <PiPei.h>
  16
  17 #include <Ppi/VTdInfo.h>
  18
  19 #include <Library/PeiServicesLib.h>
  20 #include <Library/DebugLib.h>
  21
  22 typedef struct {
  23   UINT64                                  Revision;
  24   UINT8                                   HostAddressWidth;
  25   UINT8                                   Reserved[3];
  26   UINT32                                  VTdEngineCount;
  27   UINT64                                  VTdEngineAddress[2];
  28 } MY_VTD_INFO_PPI;
  29
  30 MY_VTD_INFO_PPI  mPlatformVTdSample = {
  31   EDKII_VTD_INFO_PPI_REVISION,
  32   0x26,
  33   {0},
  34   2,
  35   {0xFED90000, 0xFED91000},
  36 };
  37
  38 EFI_PEI_PPI_DESCRIPTOR mPlatformVTdInfoSampleDesc = {
  39   (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
  40   &gEdkiiVTdInfoPpiGuid,
  41   &mPlatformVTdSample
  42 };
  43
  44 /**
  45   Platform VTd Info sample driver.
  46
  47   @param[in] FileHandle  Handle of the file being invoked.
  48   @param[in] PeiServices Describes the list of possible PEI Services.
  49
  50   @retval EFI_SUCCESS if it completed successfully.
  51 **/
  52 EFI_STATUS
  53 EFIAPI
  54 PlatformVTdInfoSampleInitialize (
  55   IN       EFI_PEI_FILE_HANDLE  FileHandle,
  56   IN CONST EFI_PEI_SERVICES     **PeiServices
  57   )
  58 {
  59   EFI_STATUS  Status;
  60
  61   Status = PeiServicesInstallPpi (&mPlatformVTdInfoSampleDesc);
  62   ASSERT_EFI_ERROR (Status);
  63
  64   return Status;
  65 }