Vlv2TbltDevicePkg/Feature/Capsule/SystemFirmwareDescriptor/SystemFirmwareDescriptorPei.c

   1 /** @file
   2   System Firmware descriptor producer.
   3
   4   Copyright (c) 2016, 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 #include <Library/PcdLib.h>
  17 #include <Library/PeiServicesLib.h>
  18 #include <Library/DebugLib.h>
  19 #include <Protocol/FirmwareManagement.h>
  20 #include <Guid/EdkiiSystemFmpCapsule.h>
  21
  22 /**
  23   Entrypoint for SystemFirmwareDescriptor PEIM.
  24
  25   @param[in]  FileHandle  Handle of the file being invoked.
  26   @param[in]  PeiServices Describes the list of possible PEI Services.
  27
  28   @retval EFI_SUCCESS            PPI successfully installed.
  29 **/
  30 EFI_STATUS
  31 EFIAPI
  32 SystemFirmwareDescriptorPeimEntry (
  33   IN EFI_PEI_FILE_HANDLE     FileHandle,
  34   IN CONST EFI_PEI_SERVICES  **PeiServices
  35   )
  36 {
  37   EFI_STATUS                              Status;
  38   EDKII_SYSTEM_FIRMWARE_IMAGE_DESCRIPTOR  *Descriptor;
  39   UINTN                                   Size;
  40   UINTN                                   Index;
  41   UINT32                                  AuthenticationStatus;
  42
  43   //
  44   // Search RAW section.
  45   //
  46   Index = 0;
  47   while (TRUE) {
  48     Status = PeiServicesFfsFindSectionData3(EFI_SECTION_RAW, Index, FileHandle, (VOID **)&Descriptor, &AuthenticationStatus);
  49     if (EFI_ERROR(Status)) {
  50       // Should not happen, must something wrong in FDF.
  51       ASSERT(FALSE);
  52       return EFI_NOT_FOUND;
  53     }
  54     if (Descriptor->Signature == EDKII_SYSTEM_FIRMWARE_IMAGE_DESCRIPTOR_SIGNATURE) {
  55       break;
  56     }
  57     Index++;
  58   }
  59
  60   DEBUG((DEBUG_INFO, "EDKII_SYSTEM_FIRMWARE_IMAGE_DESCRIPTOR size - 0x%x\n", Descriptor->Length));
  61
  62   Size = Descriptor->Length;
  63   PcdSetPtrS (PcdEdkiiSystemFirmwareImageDescriptor, &Size, Descriptor);
  64
  65   return EFI_SUCCESS;
  66 }