Re: [PATCH 01/12] UefiPayloadPkg: Add HobLib for UniversalPayload

["Guo Dong" <guo.dong@intel.com>]

Could you add description why you need add new library DxeHobLib + DxeHobListLib for DXE drivers instead of using MdePkg/Library/DxeHobLib/DxeHobLib.inf?
And please check if UefiLib is still required for new DxeHobLib since it is listed in the INF file.

BTW, it looks there are some comments updated in the HobLib from MdePkg. Maybe sync the changes to new Hob.

Thanks,
Guo

> -----Original Message-----
> From: Liu, Zhiguang <zhiguang.liu@intel.com>
> Sent: Sunday, June 20, 2021 8:47 AM
> To: devel@edk2.groups.io
> Cc: Ma, Maurice <maurice.ma@intel.com>; Dong, Guo
> <guo.dong@intel.com>; You, Benjamin <benjamin.you@intel.com>; Ni, Ray
> <ray.ni@intel.com>
> Subject: [PATCH 01/12] UefiPayloadPkg: Add HobLib for UniversalPayload
> 
> For payload entry, use PayloadEntryHobLib as HobLib and payload entry
> should initialize hob base.
> For DxeCore, use new added DxeHobLib as HobLib, and DxeCore will
> initialize hob base.
> For Dxe Driver, use new added DxeHobLib as HobLib, and use DxeHobListLib
> to initialize hob base.
> 
> Cc: Maurice Ma <maurice.ma@intel.com>
> Cc: Guo Dong <guo.dong@intel.com>
> Cc: Benjamin You <benjamin.you@intel.com>
> Signed-off-by: Ray Ni <ray.ni@intel.com>
> Signed-off-by: Zhiguang Liu <zhiguang.liu@intel.com>
> ---
>  UefiPayloadPkg/Include/Library/DxeHobListLib.h                   |  27
> +++++++++++++++++++++++++++
>  UefiPayloadPkg/Library/DxeHobLib/DxeHobLib.inf                   |  40
> ++++++++++++++++++++++++++++++++++++++++
>  UefiPayloadPkg/Library/DxeHobLib/DxeHobLib.uni                   |  17
> +++++++++++++++++
>  UefiPayloadPkg/Library/DxeHobLib/HobLib.c                        | 597
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> +++++++++++++++++
>  UefiPayloadPkg/Library/DxeHobListLib/DxeHobListLib.c             |  66
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> ++++++++
>  UefiPayloadPkg/Library/DxeHobListLib/DxeHobListLib.inf           |  35
> +++++++++++++++++++++++++++++++++++
>  UefiPayloadPkg/Library/DxeHobListLibNull/DxeHobListLibNull.c     |  20
> ++++++++++++++++++++
>  UefiPayloadPkg/Library/DxeHobListLibNull/DxeHobListLibNull.inf   |  28
> ++++++++++++++++++++++++++++
>  UefiPayloadPkg/Library/{HobLib => PayloadEntryHobLib}/Hob.c      |   2 +-
>  UefiPayloadPkg/Library/{HobLib => PayloadEntryHobLib}/HobLib.inf |   2 +-
>  UefiPayloadPkg/UefiPayloadPkg.dsc                                |  15 +++++++++++----
>  11 files changed, 843 insertions(+), 6 deletions(-)
> 
> diff --git a/UefiPayloadPkg/Include/Library/DxeHobListLib.h
> b/UefiPayloadPkg/Include/Library/DxeHobListLib.h
> new file mode 100644
> index 0000000000..7e9b23f6d7
> --- /dev/null
> +++ b/UefiPayloadPkg/Include/Library/DxeHobListLib.h
> @@ -0,0 +1,27 @@
> +/** @file
> 
> +  Provides a service to retrieve a pointer to the start of HOB list.
> 
> +  Only available to DXE module types.
> 
> +
> 
> +  This library does not contain any functions or macros.  It simply exports a
> global
> 
> +  pointer to the start of HOB list as defined in the Platform Initialization
> Driver
> 
> +  Execution Environment Core Interface Specification.  The library
> constructor must
> 
> +  initialize this global pointer to the start of HOB list, so it is available at the
> 
> +  module's entry point.  Since there is overhead in looking up the pointer to
> the start
> 
> +  of HOB list, only those modules that actually require access to the HOB list
> 
> +  should use this library.
> 
> +
> 
> +Copyright (c) 2021, Intel Corporation. All rights reserved.<BR>
> 
> +SPDX-License-Identifier: BSD-2-Clause-Patent
> 
> +
> 
> +**/
> 
> +
> 
> +#ifndef __DXE_HOB_LIST_LIB_H__
> 
> +#define __DXE_HOB_LIST_LIB_H__
> 
> +
> 
> +///
> 
> +/// Cache copy of the start of HOB list
> 
> +///
> 
> +extern VOID  *gHobList;
> 
> +
> 
> +#endif
> 
> +
> 
> diff --git a/UefiPayloadPkg/Library/DxeHobLib/DxeHobLib.inf
> b/UefiPayloadPkg/Library/DxeHobLib/DxeHobLib.inf
> new file mode 100644
> index 0000000000..a146befd25
> --- /dev/null
> +++ b/UefiPayloadPkg/Library/DxeHobLib/DxeHobLib.inf
> @@ -0,0 +1,40 @@
> +## @file
> 
> +# Instance of HOB Library using HOB list from EFI Configuration Table.
> 
> +#
> 
> +# HOB Library implementation that retrieves the HOB List
> 
> +#  from the System Configuration Table in the EFI System Table.
> 
> +#
> 
> +# Copyright (c) 2021, Intel Corporation. All rights reserved.<BR>
> 
> +#
> 
> +#  SPDX-License-Identifier: BSD-2-Clause-Patent
> 
> +#
> 
> +#
> 
> +##
> 
> +
> 
> +[Defines]
> 
> +  INF_VERSION                    = 0x00010005
> 
> +  BASE_NAME                      = DxeHobLib
> 
> +  MODULE_UNI_FILE                = DxeHobLib.uni
> 
> +  FILE_GUID                      = 1a15b8b3-3e8a-4698-87b9-65aad9993b52
> 
> +  MODULE_TYPE                    = DXE_DRIVER
> 
> +  VERSION_STRING                 = 1.0
> 
> +  LIBRARY_CLASS                  = HobLib|DXE_DRIVER DXE_RUNTIME_DRIVER
> SMM_CORE DXE_SMM_DRIVER UEFI_APPLICATION UEFI_DRIVER
> 
> +
> 
> +#
> 
> +#  VALID_ARCHITECTURES           = IA32 X64 EBC
> 
> +#
> 
> +
> 
> +[Sources]
> 
> +  HobLib.c
> 
> +
> 
> +
> 
> +[Packages]
> 
> +  MdePkg/MdePkg.dec
> 
> +  UefiPayloadPkg/UefiPayloadPkg.dec
> 
> +
> 
> +
> 
> +[LibraryClasses]
> 
> +  BaseMemoryLib
> 
> +  DebugLib
> 
> +  UefiLib
> 
> +  DxeHobListLib
> 
> diff --git a/UefiPayloadPkg/Library/DxeHobLib/DxeHobLib.uni
> b/UefiPayloadPkg/Library/DxeHobLib/DxeHobLib.uni
> new file mode 100644
> index 0000000000..f1a18b7984
> --- /dev/null
> +++ b/UefiPayloadPkg/Library/DxeHobLib/DxeHobLib.uni
> @@ -0,0 +1,17 @@
> +// /** @file
> 
> +// Instance of HOB Library using HOB list from EFI Configuration Table.
> 
> +//
> 
> +// HOB Library implementation that retrieves the HOB List
> 
> +// from the System Configuration Table in the EFI System Table.
> 
> +//
> 
> +// Copyright (c) 2021, Intel Corporation. All rights reserved.<BR>
> 
> +//
> 
> +// SPDX-License-Identifier: BSD-2-Clause-Patent
> 
> +//
> 
> +// **/
> 
> +
> 
> +
> 
> +#string STR_MODULE_ABSTRACT             #language en-US "Instance of HOB
> Library using HOB list from EFI Configuration Table"
> 
> +
> 
> +#string STR_MODULE_DESCRIPTION          #language en-US "The HOB Library
> implementation that retrieves the HOB List from the System Configuration
> Table in the EFI System Table."
> 
> +
> 
> diff --git a/UefiPayloadPkg/Library/DxeHobLib/HobLib.c
> b/UefiPayloadPkg/Library/DxeHobLib/HobLib.c
> new file mode 100644
> index 0000000000..8a2e773c59
> --- /dev/null
> +++ b/UefiPayloadPkg/Library/DxeHobLib/HobLib.c
> @@ -0,0 +1,597 @@
> +/** @file
> 
> +  HOB Library implementation for Payload Phase.
> 
> +
> 
> +Copyright (c) 2021, Intel Corporation. All rights reserved.<BR>
> 
> +SPDX-License-Identifier: BSD-2-Clause-Patent
> 
> +
> 
> +**/
> 
> +
> 
> +#include <PiDxe.h>
> 
> +
> 
> +#include <Library/HobLib.h>
> 
> +#include <Library/DebugLib.h>
> 
> +#include <Library/BaseMemoryLib.h>
> 
> +#include <Library/DxeHobListLib.h>
> 
> +
> 
> +/**
> 
> +  Returns the pointer to the HOB list.
> 
> +
> 
> +  This function returns the pointer to first HOB in the list.
> 
> +  For PEI phase, the PEI service GetHobList() can be used to retrieve the
> pointer
> 
> +  to the HOB list.  For the DXE phase, the HOB list pointer can be retrieved
> through
> 
> +  the EFI System Table by looking up theHOB list GUID in the System
> Configuration Table.
> 
> +  Since the System Configuration Table does not exist that the time the DXE
> Core is
> 
> +  launched, the DXE Core uses a global variable from the DXE Core Entry
> Point Library
> 
> +  to manage the pointer to the HOB list.
> 
> +
> 
> +  If the pointer to the HOB list is NULL, then ASSERT().
> 
> +
> 
> +  @return The pointer to the HOB list.
> 
> +
> 
> +**/
> 
> +VOID *
> 
> +EFIAPI
> 
> +GetHobList (
> 
> +  VOID
> 
> +  )
> 
> +{
> 
> +  ASSERT (gHobList != NULL);
> 
> +  return gHobList;
> 
> +}
> 
> +
> 
> +/**
> 
> +  Returns the next instance of a HOB type from the starting HOB.
> 
> +
> 
> +  This function searches the first instance of a HOB type from the starting
> HOB pointer.
> 
> +  If there does not exist such HOB type from the starting HOB pointer, it will
> return NULL.
> 
> +  In contrast with macro GET_NEXT_HOB(), this function does not skip the
> starting HOB pointer
> 
> +  unconditionally: it returns HobStart back if HobStart itself meets the
> requirement;
> 
> +  caller is required to use GET_NEXT_HOB() if it wishes to skip current
> HobStart.
> 
> +
> 
> +  If HobStart is NULL, then ASSERT().
> 
> +
> 
> +  @param  Type          The HOB type to return.
> 
> +  @param  HobStart      The starting HOB pointer to search from.
> 
> +
> 
> +  @return The next instance of a HOB type from the starting HOB.
> 
> +
> 
> +**/
> 
> +VOID *
> 
> +EFIAPI
> 
> +GetNextHob (
> 
> +  IN UINT16                 Type,
> 
> +  IN CONST VOID             *HobStart
> 
> +  )
> 
> +{
> 
> +  EFI_PEI_HOB_POINTERS  Hob;
> 
> +
> 
> +  ASSERT (HobStart != NULL);
> 
> +
> 
> +  Hob.Raw = (UINT8 *) HobStart;
> 
> +  //
> 
> +  // Parse the HOB list until end of list or matching type is found.
> 
> +  //
> 
> +  while (!END_OF_HOB_LIST (Hob)) {
> 
> +    if (Hob.Header->HobType == Type) {
> 
> +      return Hob.Raw;
> 
> +    }
> 
> +    Hob.Raw = GET_NEXT_HOB (Hob);
> 
> +  }
> 
> +  return NULL;
> 
> +}
> 
> +
> 
> +/**
> 
> +  Returns the first instance of a HOB type among the whole HOB list.
> 
> +
> 
> +  This function searches the first instance of a HOB type among the whole
> HOB list.
> 
> +  If there does not exist such HOB type in the HOB list, it will return NULL.
> 
> +
> 
> +  If the pointer to the HOB list is NULL, then ASSERT().
> 
> +
> 
> +  @param  Type          The HOB type to return.
> 
> +
> 
> +  @return The next instance of a HOB type from the starting HOB.
> 
> +
> 
> +**/
> 
> +VOID *
> 
> +EFIAPI
> 
> +GetFirstHob (
> 
> +  IN UINT16                 Type
> 
> +  )
> 
> +{
> 
> +  VOID      *HobList;
> 
> +
> 
> +  HobList = GetHobList ();
> 
> +  return GetNextHob (Type, HobList);
> 
> +}
> 
> +
> 
> +/**
> 
> +  Returns the next instance of the matched GUID HOB from the starting HOB.
> 
> +
> 
> +  This function searches the first instance of a HOB from the starting HOB
> pointer.
> 
> +  Such HOB should satisfy two conditions:
> 
> +  its HOB type is EFI_HOB_TYPE_GUID_EXTENSION, and its GUID Name
> equals to the input Guid.
> 
> +  If such a HOB from the starting HOB pointer does not exist, it will return
> NULL.
> 
> +  Caller is required to apply GET_GUID_HOB_DATA () and
> GET_GUID_HOB_DATA_SIZE ()
> 
> +  to extract the data section and its size information, respectively.
> 
> +  In contrast with macro GET_NEXT_HOB(), this function does not skip the
> starting HOB pointer
> 
> +  unconditionally: it returns HobStart back if HobStart itself meets the
> requirement;
> 
> +  caller is required to use GET_NEXT_HOB() if it wishes to skip current
> HobStart.
> 
> +
> 
> +  If Guid is NULL, then ASSERT().
> 
> +  If HobStart is NULL, then ASSERT().
> 
> +
> 
> +  @param  Guid          The GUID to match with in the HOB list.
> 
> +  @param  HobStart      A pointer to a Guid.
> 
> +
> 
> +  @return The next instance of the matched GUID HOB from the starting
> HOB.
> 
> +
> 
> +**/
> 
> +VOID *
> 
> +EFIAPI
> 
> +GetNextGuidHob (
> 
> +  IN CONST EFI_GUID         *Guid,
> 
> +  IN CONST VOID             *HobStart
> 
> +  )
> 
> +{
> 
> +  EFI_PEI_HOB_POINTERS  GuidHob;
> 
> +
> 
> +  GuidHob.Raw = (UINT8 *) HobStart;
> 
> +  while ((GuidHob.Raw = GetNextHob (EFI_HOB_TYPE_GUID_EXTENSION,
> GuidHob.Raw)) != NULL) {
> 
> +    if (CompareGuid (Guid, &GuidHob.Guid->Name)) {
> 
> +      break;
> 
> +    }
> 
> +    GuidHob.Raw = GET_NEXT_HOB (GuidHob);
> 
> +  }
> 
> +  return GuidHob.Raw;
> 
> +}
> 
> +
> 
> +/**
> 
> +  Returns the first instance of the matched GUID HOB among the whole HOB
> list.
> 
> +
> 
> +  This function searches the first instance of a HOB among the whole HOB list.
> 
> +  Such HOB should satisfy two conditions:
> 
> +  its HOB type is EFI_HOB_TYPE_GUID_EXTENSION and its GUID Name
> equals to the input Guid.
> 
> +  If such a HOB from the starting HOB pointer does not exist, it will return
> NULL.
> 
> +  Caller is required to apply GET_GUID_HOB_DATA () and
> GET_GUID_HOB_DATA_SIZE ()
> 
> +  to extract the data section and its size information, respectively.
> 
> +
> 
> +  If the pointer to the HOB list is NULL, then ASSERT().
> 
> +  If Guid is NULL, then ASSERT().
> 
> +
> 
> +  @param  Guid          The GUID to match with in the HOB list.
> 
> +
> 
> +  @return The first instance of the matched GUID HOB among the whole
> HOB list.
> 
> +
> 
> +**/
> 
> +VOID *
> 
> +EFIAPI
> 
> +GetFirstGuidHob (
> 
> +  IN CONST EFI_GUID         *Guid
> 
> +  )
> 
> +{
> 
> +  VOID      *HobList;
> 
> +
> 
> +  HobList = GetHobList ();
> 
> +  return GetNextGuidHob (Guid, HobList);
> 
> +}
> 
> +
> 
> +/**
> 
> +  Get the system boot mode from the HOB list.
> 
> +
> 
> +  This function returns the system boot mode information from the
> 
> +  PHIT HOB in HOB list.
> 
> +
> 
> +  If the pointer to the HOB list is NULL, then ASSERT().
> 
> +
> 
> +  @param  VOID
> 
> +
> 
> +  @return The Boot Mode.
> 
> +
> 
> +**/
> 
> +EFI_BOOT_MODE
> 
> +EFIAPI
> 
> +GetBootModeHob (
> 
> +  VOID
> 
> +  )
> 
> +{
> 
> +  EFI_HOB_HANDOFF_INFO_TABLE    *HandOffHob;
> 
> +
> 
> +  HandOffHob = (EFI_HOB_HANDOFF_INFO_TABLE *) GetHobList ();
> 
> +
> 
> +  return  HandOffHob->BootMode;
> 
> +}
> 
> +
> 
> +/**
> 
> +  Builds a HOB for a loaded PE32 module.
> 
> +
> 
> +  This function builds a HOB for a loaded PE32 module.
> 
> +  It can only be invoked during PEI phase;
> 
> +  for DXE phase, it will ASSERT() because PEI HOB is read-only for DXE phase.
> 
> +
> 
> +  If ModuleName is NULL, then ASSERT().
> 
> +  If there is no additional space for HOB creation, then ASSERT().
> 
> +
> 
> +  @param  ModuleName              The GUID File Name of the module.
> 
> +  @param  MemoryAllocationModule  The 64 bit physical address of the
> module.
> 
> +  @param  ModuleLength            The length of the module in bytes.
> 
> +  @param  EntryPoint              The 64 bit physical address of the module entry
> point.
> 
> +
> 
> +**/
> 
> +VOID
> 
> +EFIAPI
> 
> +BuildModuleHob (
> 
> +  IN CONST EFI_GUID         *ModuleName,
> 
> +  IN EFI_PHYSICAL_ADDRESS   MemoryAllocationModule,
> 
> +  IN UINT64                 ModuleLength,
> 
> +  IN EFI_PHYSICAL_ADDRESS   EntryPoint
> 
> +  )
> 
> +{
> 
> +  //
> 
> +  // PEI HOB is read only for DXE phase
> 
> +  //
> 
> +  ASSERT (FALSE);
> 
> +}
> 
> +
> 
> +/**
> 
> +  Builds a HOB that describes a chunk of system memory with Owner GUID.
> 
> +
> 
> +  This function builds a HOB that describes a chunk of system memory.
> 
> +  It can only be invoked during PEI phase;
> 
> +  for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.
> 
> +
> 
> +  If there is no additional space for HOB creation, then ASSERT().
> 
> +
> 
> +  @param  ResourceType        The type of resource described by this HOB.
> 
> +  @param  ResourceAttribute   The resource attributes of the memory
> described by this HOB.
> 
> +  @param  PhysicalStart       The 64 bit physical address of memory described
> by this HOB.
> 
> +  @param  NumberOfBytes       The length of the memory described by this
> HOB in bytes.
> 
> +  @param  OwnerGUID           GUID for the owner of this resource.
> 
> +
> 
> +**/
> 
> +VOID
> 
> +EFIAPI
> 
> +BuildResourceDescriptorWithOwnerHob (
> 
> +  IN EFI_RESOURCE_TYPE            ResourceType,
> 
> +  IN EFI_RESOURCE_ATTRIBUTE_TYPE  ResourceAttribute,
> 
> +  IN EFI_PHYSICAL_ADDRESS         PhysicalStart,
> 
> +  IN UINT64                       NumberOfBytes,
> 
> +  IN EFI_GUID                     *OwnerGUID
> 
> +  )
> 
> +{
> 
> +  //
> 
> +  // PEI HOB is read only for DXE phase
> 
> +  //
> 
> +  ASSERT (FALSE);
> 
> +}
> 
> +
> 
> +/**
> 
> +  Builds a HOB that describes a chunk of system memory.
> 
> +
> 
> +  This function builds a HOB that describes a chunk of system memory.
> 
> +  It can only be invoked during PEI phase;
> 
> +  for DXE phase, it will ASSERT() because PEI HOB is read-only for DXE phase.
> 
> +
> 
> +  If there is no additional space for HOB creation, then ASSERT().
> 
> +
> 
> +  @param  ResourceType        The type of resource described by this HOB.
> 
> +  @param  ResourceAttribute   The resource attributes of the memory
> described by this HOB.
> 
> +  @param  PhysicalStart       The 64 bit physical address of memory described
> by this HOB.
> 
> +  @param  NumberOfBytes       The length of the memory described by this
> HOB in bytes.
> 
> +
> 
> +**/
> 
> +VOID
> 
> +EFIAPI
> 
> +BuildResourceDescriptorHob (
> 
> +  IN EFI_RESOURCE_TYPE            ResourceType,
> 
> +  IN EFI_RESOURCE_ATTRIBUTE_TYPE  ResourceAttribute,
> 
> +  IN EFI_PHYSICAL_ADDRESS         PhysicalStart,
> 
> +  IN UINT64                       NumberOfBytes
> 
> +  )
> 
> +{
> 
> +  //
> 
> +  // PEI HOB is read only for DXE phase
> 
> +  //
> 
> +  ASSERT (FALSE);
> 
> +}
> 
> +
> 
> +/**
> 
> +  Builds a customized HOB tagged with a GUID for identification and returns
> 
> +  the start address of GUID HOB data.
> 
> +
> 
> +  This function builds a customized HOB tagged with a GUID for identification
> 
> +  and returns the start address of GUID HOB data so that caller can fill the
> customized data.
> 
> +  The HOB Header and Name field is already stripped.
> 
> +  It can only be invoked during PEI phase.
> 
> +  For DXE phase, it will ASSERT() because PEI HOB is read-only for DXE phase.
> 
> +
> 
> +  If Guid is NULL, then ASSERT().
> 
> +  If there is no additional space for HOB creation, then ASSERT().
> 
> +  If DataLength > (0xFFF8 - sizeof (EFI_HOB_GUID_TYPE)), then ASSERT().
> 
> +  HobLength is UINT16 and multiples of 8 bytes, so the max HobLength is
> 0xFFF8.
> 
> +
> 
> +  @param  Guid          The GUID to tag the customized HOB.
> 
> +  @param  DataLength    The size of the data payload for the GUID HOB.
> 
> +
> 
> +  @retval  NULL         The GUID HOB could not be allocated.
> 
> +  @retval  others       The start address of GUID HOB data.
> 
> +
> 
> +**/
> 
> +VOID *
> 
> +EFIAPI
> 
> +BuildGuidHob (
> 
> +  IN CONST EFI_GUID              *Guid,
> 
> +  IN UINTN                       DataLength
> 
> +  )
> 
> +{
> 
> +  //
> 
> +  // PEI HOB is read only for DXE phase
> 
> +  //
> 
> +  ASSERT (FALSE);
> 
> +  return NULL;
> 
> +}
> 
> +
> 
> +/**
> 
> +  Builds a customized HOB tagged with a GUID for identification, copies the
> input data to the HOB
> 
> +  data field, and returns the start address of the GUID HOB data.
> 
> +
> 
> +  This function builds a customized HOB tagged with a GUID for identification
> and copies the input
> 
> +  data to the HOB data field and returns the start address of the GUID HOB
> data.  It can only be
> 
> +  invoked during PEI phase; for DXE phase, it will ASSERT() because PEI HOB
> is read-only for DXE phase.
> 
> +  The HOB Header and Name field is already stripped.
> 
> +  It can only be invoked during PEI phase.
> 
> +  For DXE phase, it will ASSERT() because PEI HOB is read-only for DXE phase.
> 
> +
> 
> +  If Guid is NULL, then ASSERT().
> 
> +  If Data is NULL and DataLength > 0, then ASSERT().
> 
> +  If there is no additional space for HOB creation, then ASSERT().
> 
> +  If DataLength > (0xFFF8 - sizeof (EFI_HOB_GUID_TYPE)), then ASSERT().
> 
> +  HobLength is UINT16 and multiples of 8 bytes, so the max HobLength is
> 0xFFF8.
> 
> +
> 
> +  @param  Guid          The GUID to tag the customized HOB.
> 
> +  @param  Data          The data to be copied into the data field of the GUID
> HOB.
> 
> +  @param  DataLength    The size of the data payload for the GUID HOB.
> 
> +
> 
> +  @retval  NULL         The GUID HOB could not be allocated.
> 
> +  @retval  others       The start address of GUID HOB data.
> 
> +
> 
> +**/
> 
> +VOID *
> 
> +EFIAPI
> 
> +BuildGuidDataHob (
> 
> +  IN CONST EFI_GUID              *Guid,
> 
> +  IN VOID                        *Data,
> 
> +  IN UINTN                       DataLength
> 
> +  )
> 
> +{
> 
> +  //
> 
> +  // PEI HOB is read only for DXE phase
> 
> +  //
> 
> +  ASSERT (FALSE);
> 
> +  return NULL;
> 
> +}
> 
> +
> 
> +/**
> 
> +  Builds a Firmware Volume HOB.
> 
> +
> 
> +  This function builds a Firmware Volume HOB.
> 
> +  It can only be invoked during PEI phase;
> 
> +  for DXE phase, it will ASSERT() because PEI HOB is read-only for DXE phase.
> 
> +
> 
> +  If there is no additional space for HOB creation, then ASSERT().
> 
> +  If the FvImage buffer is not at its required alignment, then ASSERT().
> 
> +
> 
> +  @param  BaseAddress   The base address of the Firmware Volume.
> 
> +  @param  Length        The size of the Firmware Volume in bytes.
> 
> +
> 
> +**/
> 
> +VOID
> 
> +EFIAPI
> 
> +BuildFvHob (
> 
> +  IN EFI_PHYSICAL_ADDRESS        BaseAddress,
> 
> +  IN UINT64                      Length
> 
> +  )
> 
> +{
> 
> +  //
> 
> +  // PEI HOB is read only for DXE phase
> 
> +  //
> 
> +  ASSERT (FALSE);
> 
> +}
> 
> +
> 
> +/**
> 
> +  Builds a EFI_HOB_TYPE_FV2 HOB.
> 
> +
> 
> +  This function builds a EFI_HOB_TYPE_FV2 HOB.
> 
> +  It can only be invoked during PEI phase;
> 
> +  for DXE phase, it will ASSERT() because PEI HOB is read-only for DXE phase.
> 
> +
> 
> +  If there is no additional space for HOB creation, then ASSERT().
> 
> +  If the FvImage buffer is not at its required alignment, then ASSERT().
> 
> +
> 
> +  @param  BaseAddress   The base address of the Firmware Volume.
> 
> +  @param  Length        The size of the Firmware Volume in bytes.
> 
> +  @param  FvName        The name of the Firmware Volume.
> 
> +  @param  FileName      The name of the file.
> 
> +
> 
> +**/
> 
> +VOID
> 
> +EFIAPI
> 
> +BuildFv2Hob (
> 
> +  IN          EFI_PHYSICAL_ADDRESS        BaseAddress,
> 
> +  IN          UINT64                      Length,
> 
> +  IN CONST    EFI_GUID                    *FvName,
> 
> +  IN CONST    EFI_GUID                    *FileName
> 
> +  )
> 
> +{
> 
> +  ASSERT (FALSE);
> 
> +}
> 
> +
> 
> +/**
> 
> +  Builds a EFI_HOB_TYPE_FV3 HOB.
> 
> +
> 
> +  This function builds a EFI_HOB_TYPE_FV3 HOB.
> 
> +  It can only be invoked during PEI phase;
> 
> +  for DXE phase, it will ASSERT() since PEI HOB is read-only for DXE phase.
> 
> +
> 
> +  If there is no additional space for HOB creation, then ASSERT().
> 
> +  If the FvImage buffer is not at its required alignment, then ASSERT().
> 
> +
> 
> +  @param BaseAddress            The base address of the Firmware Volume.
> 
> +  @param Length                 The size of the Firmware Volume in bytes.
> 
> +  @param AuthenticationStatus   The authentication status.
> 
> +  @param ExtractedFv            TRUE if the FV was extracted as a file within
> 
> +                                another firmware volume. FALSE otherwise.
> 
> +  @param FvName                 The name of the Firmware Volume.
> 
> +                                Valid only if IsExtractedFv is TRUE.
> 
> +  @param FileName               The name of the file.
> 
> +                                Valid only if IsExtractedFv is TRUE.
> 
> +
> 
> +**/
> 
> +VOID
> 
> +EFIAPI
> 
> +BuildFv3Hob (
> 
> +  IN          EFI_PHYSICAL_ADDRESS        BaseAddress,
> 
> +  IN          UINT64                      Length,
> 
> +  IN          UINT32                      AuthenticationStatus,
> 
> +  IN          BOOLEAN                     ExtractedFv,
> 
> +  IN CONST    EFI_GUID                    *FvName, OPTIONAL
> 
> +  IN CONST    EFI_GUID                    *FileName OPTIONAL
> 
> +  )
> 
> +{
> 
> +  ASSERT (FALSE);
> 
> +}
> 
> +
> 
> +/**
> 
> +  Builds a Capsule Volume HOB.
> 
> +
> 
> +  This function builds a Capsule Volume HOB.
> 
> +  It can only be invoked during PEI phase;
> 
> +  for DXE phase, it will ASSERT() because PEI HOB is read-only for DXE phase.
> 
> +
> 
> +  If the platform does not support Capsule Volume HOBs, then ASSERT().
> 
> +  If there is no additional space for HOB creation, then ASSERT().
> 
> +
> 
> +  @param  BaseAddress   The base address of the Capsule Volume.
> 
> +  @param  Length        The size of the Capsule Volume in bytes.
> 
> +
> 
> +**/
> 
> +VOID
> 
> +EFIAPI
> 
> +BuildCvHob (
> 
> +  IN EFI_PHYSICAL_ADDRESS        BaseAddress,
> 
> +  IN UINT64                      Length
> 
> +  )
> 
> +{
> 
> +  //
> 
> +  // PEI HOB is read only for DXE phase
> 
> +  //
> 
> +  ASSERT (FALSE);
> 
> +}
> 
> +
> 
> +/**
> 
> +  Builds a HOB for the CPU.
> 
> +
> 
> +  This function builds a HOB for the CPU.
> 
> +  It can only be invoked during PEI phase;
> 
> +  for DXE phase, it will ASSERT() because PEI HOB is read-only for DXE phase.
> 
> +
> 
> +  If there is no additional space for HOB creation, then ASSERT().
> 
> +
> 
> +  @param  SizeOfMemorySpace   The maximum physical memory
> addressability of the processor.
> 
> +  @param  SizeOfIoSpace       The maximum physical I/O addressability of the
> processor.
> 
> +
> 
> +**/
> 
> +VOID
> 
> +EFIAPI
> 
> +BuildCpuHob (
> 
> +  IN UINT8                       SizeOfMemorySpace,
> 
> +  IN UINT8                       SizeOfIoSpace
> 
> +  )
> 
> +{
> 
> +  //
> 
> +  // PEI HOB is read only for DXE phase
> 
> +  //
> 
> +  ASSERT (FALSE);
> 
> +}
> 
> +
> 
> +/**
> 
> +  Builds a HOB for the Stack.
> 
> +
> 
> +  This function builds a HOB for the stack.
> 
> +  It can only be invoked during PEI phase;
> 
> +  for DXE phase, it will ASSERT() because PEI HOB is read-only for DXE phase.
> 
> +
> 
> +  If there is no additional space for HOB creation, then ASSERT().
> 
> +
> 
> +  @param  BaseAddress   The 64 bit physical address of the Stack.
> 
> +  @param  Length        The length of the stack in bytes.
> 
> +
> 
> +**/
> 
> +VOID
> 
> +EFIAPI
> 
> +BuildStackHob (
> 
> +  IN EFI_PHYSICAL_ADDRESS        BaseAddress,
> 
> +  IN UINT64                      Length
> 
> +  )
> 
> +{
> 
> +  //
> 
> +  // PEI HOB is read only for DXE phase
> 
> +  //
> 
> +  ASSERT (FALSE);
> 
> +}
> 
> +
> 
> +/**
> 
> +  Builds a HOB for the BSP store.
> 
> +
> 
> +  This function builds a HOB for BSP store.
> 
> +  It can only be invoked during PEI phase;
> 
> +  for DXE phase, it will ASSERT() because PEI HOB is read-only for DXE phase.
> 
> +
> 
> +  If there is no additional space for HOB creation, then ASSERT().
> 
> +
> 
> +  @param  BaseAddress   The 64 bit physical address of the BSP.
> 
> +  @param  Length        The length of the BSP store in bytes.
> 
> +  @param  MemoryType    Type of memory allocated by this HOB.
> 
> +
> 
> +**/
> 
> +VOID
> 
> +EFIAPI
> 
> +BuildBspStoreHob (
> 
> +  IN EFI_PHYSICAL_ADDRESS        BaseAddress,
> 
> +  IN UINT64                      Length,
> 
> +  IN EFI_MEMORY_TYPE             MemoryType
> 
> +  )
> 
> +{
> 
> +  //
> 
> +  // PEI HOB is read only for DXE phase
> 
> +  //
> 
> +  ASSERT (FALSE);
> 
> +}
> 
> +
> 
> +/**
> 
> +  Builds a HOB for the memory allocation.
> 
> +
> 
> +  This function builds a HOB for the memory allocation.
> 
> +  It can only be invoked during PEI phase;
> 
> +  for DXE phase, it will ASSERT() because PEI HOB is read-only for DXE phase.
> 
> +
> 
> +  If there is no additional space for HOB creation, then ASSERT().
> 
> +
> 
> +  @param  BaseAddress   The 64 bit physical address of the memory.
> 
> +  @param  Length        The length of the memory allocation in bytes.
> 
> +  @param  MemoryType    Type of memory allocated by this HOB.
> 
> +
> 
> +**/
> 
> +VOID
> 
> +EFIAPI
> 
> +BuildMemoryAllocationHob (
> 
> +  IN EFI_PHYSICAL_ADDRESS        BaseAddress,
> 
> +  IN UINT64                      Length,
> 
> +  IN EFI_MEMORY_TYPE             MemoryType
> 
> +  )
> 
> +{
> 
> +  //
> 
> +  // PEI HOB is read only for DXE phase
> 
> +  //
> 
> +  ASSERT (FALSE);
> 
> +}
> 
> diff --git a/UefiPayloadPkg/Library/DxeHobListLib/DxeHobListLib.c
> b/UefiPayloadPkg/Library/DxeHobListLib/DxeHobListLib.c
> new file mode 100644
> index 0000000000..8bb31b3f9c
> --- /dev/null
> +++ b/UefiPayloadPkg/Library/DxeHobListLib/DxeHobListLib.c
> @@ -0,0 +1,66 @@
> +/** @file
> 
> +  This library retrieve the EFI_BOOT_SERVICES pointer from EFI system table
> in
> 
> +  library's constructor.
> 
> +
> 
> +  Copyright (c) 2021, Intel Corporation. All rights reserved.<BR>
> 
> +  SPDX-License-Identifier: BSD-2-Clause-Patent
> 
> +
> 
> +**/
> 
> +
> 
> +
> 
> +#include <Uefi.h>
> 
> +
> 
> +VOID  *gHobList = NULL;
> 
> +
> 
> +/**
> 
> +  Local implementation of GUID comparasion that doesn't depend on
> DebugLib::ASSERT().
> 
> +
> 
> +  This function compares Guid1 to Guid2.  If the GUIDs are identical then
> TRUE is returned.
> 
> +  If there are any bit differences in the two GUIDs, then FALSE is returned.
> 
> +
> 
> +  @param  Guid1       A pointer to a 128 bit GUID.
> 
> +  @param  Guid2       A pointer to a 128 bit GUID.
> 
> +
> 
> +  @retval TRUE        Guid1 and Guid2 are identical.
> 
> +  @retval FALSE       Guid1 and Guid2 are not identical.
> 
> +**/
> 
> +BOOLEAN
> 
> +LocalCompareGuid (
> 
> +  IN CONST GUID  *Guid1,
> 
> +  IN CONST GUID  *Guid2
> 
> +  )
> 
> +{
> 
> +  UINT64  *Left;
> 
> +  UINT64  *Right;
> 
> +
> 
> +  Left  = (UINT64 *) Guid1;
> 
> +  Right = (UINT64 *) Guid2;
> 
> +
> 
> +  return (BOOLEAN) (Left[0] == Right[0] && Left[1] == Right[1]);
> 
> +}
> 
> +
> 
> +/**
> 
> +  @param  ImageHandle   The firmware allocated handle for the EFI image.
> 
> +  @param  SystemTable   A pointer to the EFI System Table.
> 
> +
> 
> +  @retval EFI_SUCCESS   The constructor always returns EFI_SUCCESS.
> 
> +
> 
> +**/
> 
> +EFI_STATUS
> 
> +EFIAPI
> 
> +DxeHobListLibConstructor (
> 
> +  IN EFI_HANDLE        ImageHandle,
> 
> +  IN EFI_SYSTEM_TABLE  *SystemTable
> 
> +  )
> 
> +{
> 
> +  UINTN             Index;
> 
> +
> 
> +  for (Index = 0; Index < SystemTable->NumberOfTableEntries; Index++) {
> 
> +    if (LocalCompareGuid (&gEfiHobListGuid, &SystemTable-
> >ConfigurationTable[Index].VendorGuid)) {
> 
> +      gHobList = SystemTable->ConfigurationTable[Index].VendorTable;
> 
> +      return EFI_SUCCESS;
> 
> +    }
> 
> +  }
> 
> +
> 
> +  return EFI_NOT_FOUND;
> 
> +}
> 
> diff --git a/UefiPayloadPkg/Library/DxeHobListLib/DxeHobListLib.inf
> b/UefiPayloadPkg/Library/DxeHobListLib/DxeHobListLib.inf
> new file mode 100644
> index 0000000000..1115949556
> --- /dev/null
> +++ b/UefiPayloadPkg/Library/DxeHobListLib/DxeHobListLib.inf
> @@ -0,0 +1,35 @@
> +## @file
> 
> +# UEFI Boot Services Table Library implementation.
> 
> +#
> 
> +# Copyright (c) 2021, Intel Corporation. All rights reserved.<BR>
> 
> +#
> 
> +#  SPDX-License-Identifier: BSD-2-Clause-Patent
> 
> +#
> 
> +#
> 
> +##
> 
> +
> 
> +[Defines]
> 
> +  INF_VERSION                    = 0x00010005
> 
> +  BASE_NAME                      = UefiPayloadInitHobLib
> 
> +  FILE_GUID                      = ff5c7a21-ab7a-4366-8616-11c6e53247b6
> 
> +  MODULE_TYPE                    = UEFI_DRIVER
> 
> +  VERSION_STRING                 = 1.0
> 
> +  LIBRARY_CLASS                  = DxeHobListLib|DXE_DRIVER
> DXE_RUNTIME_DRIVER DXE_SMM_DRIVER UEFI_APPLICATION
> UEFI_DRIVER SMM_CORE
> 
> +
> 
> +  CONSTRUCTOR                    = DxeHobListLibConstructor
> 
> +
> 
> +#
> 
> +#  VALID_ARCHITECTURES           = IA32 X64 EBC
> 
> +#
> 
> +
> 
> +[Sources]
> 
> +  DxeHobListLib.c
> 
> +
> 
> +[Packages]
> 
> +  MdePkg/MdePkg.dec
> 
> +  UefiPayloadPkg/UefiPayloadPkg.dec
> 
> +
> 
> +[Guids]
> 
> +  gEfiHobListGuid                               ## CONSUMES
> 
> +
> 
> +
> 
> diff --git a/UefiPayloadPkg/Library/DxeHobListLibNull/DxeHobListLibNull.c
> b/UefiPayloadPkg/Library/DxeHobListLibNull/DxeHobListLibNull.c
> new file mode 100644
> index 0000000000..92d3e17ef0
> --- /dev/null
> +++ b/UefiPayloadPkg/Library/DxeHobListLibNull/DxeHobListLibNull.c
> @@ -0,0 +1,20 @@
> +/** @file
> 
> +  This library retrieve the EFI_BOOT_SERVICES pointer from EFI system table
> in
> 
> +  library's constructor.
> 
> +
> 
> +  Copyright (c) 2021, Intel Corporation. All rights reserved.<BR>
> 
> +  SPDX-License-Identifier: BSD-2-Clause-Patent
> 
> +
> 
> +**/
> 
> +
> 
> +
> 
> +#include <Uefi.h>
> 
> +
> 
> +EFI_STATUS
> 
> +EFIAPI
> 
> +DxeHobListLibNullConstructor (
> 
> +  VOID
> 
> +  )
> 
> +{
> 
> +  return EFI_SUCCESS;
> 
> +}
> 
> diff --git a/UefiPayloadPkg/Library/DxeHobListLibNull/DxeHobListLibNull.inf
> b/UefiPayloadPkg/Library/DxeHobListLibNull/DxeHobListLibNull.inf
> new file mode 100644
> index 0000000000..f17e5ebdbd
> --- /dev/null
> +++ b/UefiPayloadPkg/Library/DxeHobListLibNull/DxeHobListLibNull.inf
> @@ -0,0 +1,28 @@
> +## @file
> 
> +# UEFI Boot Services Table Library implementation.
> 
> +#
> 
> +# Copyright (c) 2021, Intel Corporation. All rights reserved.<BR>
> 
> +#
> 
> +#  SPDX-License-Identifier: BSD-2-Clause-Patent
> 
> +#
> 
> +#
> 
> +##
> 
> +
> 
> +[Defines]
> 
> +  INF_VERSION                    = 0x00010005
> 
> +  BASE_NAME                      = DxeHobListLibNull
> 
> +  MODULE_TYPE                    = BASE
> 
> +  FILE_GUID                      = 060876c2-0e4e-4c63-8996-6af3710cfa64
> 
> +  VERSION_STRING                 = 1.0
> 
> +  LIBRARY_CLASS                  = DxeHobListLib
> 
> +  CONSTRUCTOR                    = DxeHobListLibNullConstructor
> 
> +
> 
> +#
> 
> +#  VALID_ARCHITECTURES           = IA32 X64 EBC
> 
> +#
> 
> +
> 
> +[Packages]
> 
> +  MdePkg/MdePkg.dec
> 
> +
> 
> +[Sources]
> 
> +  DxeHobListLibNull.c
> 
> diff --git a/UefiPayloadPkg/Library/HobLib/Hob.c
> b/UefiPayloadPkg/Library/PayloadEntryHobLib/Hob.c
> similarity index 96%
> rename from UefiPayloadPkg/Library/HobLib/Hob.c
> rename to UefiPayloadPkg/Library/PayloadEntryHobLib/Hob.c
> index c0b4cc0b0f..23a749edf1 100644
> --- a/UefiPayloadPkg/Library/HobLib/Hob.c
> +++ b/UefiPayloadPkg/Library/PayloadEntryHobLib/Hob.c
> @@ -1,7 +1,7 @@
>  /** @file
> 
> 
> 
>    Copyright (c) 2010, Apple Inc. All rights reserved.<BR>
> 
> -  Copyright (c) 2017 - 2020, Intel Corporation. All rights reserved.<BR>
> 
> +  Copyright (c) 2017 - 2021, Intel Corporation. All rights reserved.<BR>
> 
> 
> 
>    SPDX-License-Identifier: BSD-2-Clause-Patent
> 
> 
> 
> diff --git a/UefiPayloadPkg/Library/HobLib/HobLib.inf
> b/UefiPayloadPkg/Library/PayloadEntryHobLib/HobLib.inf
> similarity index 87%
> rename from UefiPayloadPkg/Library/HobLib/HobLib.inf
> rename to UefiPayloadPkg/Library/PayloadEntryHobLib/HobLib.inf
> index 030e22a810..cbb4f02efc 100644
> --- a/UefiPayloadPkg/Library/HobLib/HobLib.inf
> +++ b/UefiPayloadPkg/Library/PayloadEntryHobLib/HobLib.inf
> @@ -1,6 +1,6 @@
>  #/** @file
> 
>  #
> 
> -#  Copyright (c) 2018 - 2020, Intel Corporation. All rights reserved.<BR>
> 
> +#  Copyright (c) 2018 - 2021, Intel Corporation. All rights reserved.<BR>
> 
>  #  Copyright (c) 2008 - 2010, Apple Inc. All rights reserved.<BR>
> 
>  #
> 
>  #  SPDX-License-Identifier: BSD-2-Clause-Patent
> 
> diff --git a/UefiPayloadPkg/UefiPayloadPkg.dsc
> b/UefiPayloadPkg/UefiPayloadPkg.dsc
> index 21b360256b..d8277efccd 100644
> --- a/UefiPayloadPkg/UefiPayloadPkg.dsc
> +++ b/UefiPayloadPkg/UefiPayloadPkg.dsc
> @@ -27,6 +27,7 @@
> 
> 
>    DEFINE SOURCE_DEBUG_ENABLE          = FALSE
> 
>    DEFINE PS2_KEYBOARD_ENABLE          = FALSE
> 
> +  DEFINE UNIVERSAL_PAYLOAD            = FALSE
> 
> 
> 
>    #
> 
>    # SBL:      UEFI payload for Slim Bootloader
> 
> @@ -146,6 +147,13 @@
> 
> PeCoffGetEntryPointLib|MdePkg/Library/BasePeCoffGetEntryPointLib/Base
> PeCoffGetEntryPointLib.inf
> 
> 
> CacheMaintenanceLib|MdePkg/Library/BaseCacheMaintenanceLib/BaseCac
> heMaintenanceLib.inf
> 
>    SafeIntLib|MdePkg/Library/BaseSafeIntLib/BaseSafeIntLib.inf
> 
> +  DxeHobListLib|UefiPayloadPkg/Library/DxeHobListLib/DxeHobListLib.inf
> 
> +
> 
> +!if $(UNIVERSAL_PAYLOAD) == TRUE
> 
> +  HobLib|UefiPayloadPkg/Library/DxeHobLib/DxeHobLib.inf
> 
> +!else
> 
> +  HobLib|MdePkg/Library/DxeHobLib/DxeHobLib.inf
> 
> +!endif
> 
> 
> 
>    #
> 
>    # UEFI & PI
> 
> @@ -221,10 +229,12 @@
> 
> VariablePolicyHelperLib|MdeModulePkg/Library/VariablePolicyHelperLib/Va
> riablePolicyHelperLib.inf
> 
> 
> 
>  [LibraryClasses.common.SEC]
> 
> -  HobLib|UefiPayloadPkg/Library/HobLib/HobLib.inf
> 
> +  HobLib|UefiPayloadPkg/Library/PayloadEntryHobLib/HobLib.inf
> 
>    PcdLib|MdePkg/Library/BasePcdLibNull/BasePcdLibNull.inf
> 
> +
> DxeHobListLib|UefiPayloadPkg/Library/DxeHobListLibNull/DxeHobListLibNull
> .inf
> 
> 
> 
>  [LibraryClasses.common.DXE_CORE]
> 
> +
> DxeHobListLib|UefiPayloadPkg/Library/DxeHobListLibNull/DxeHobListLibNull
> .inf
> 
>    PcdLib|MdePkg/Library/BasePcdLibNull/BasePcdLibNull.inf
> 
>    HobLib|MdePkg/Library/DxeCoreHobLib/DxeCoreHobLib.inf
> 
> 
> MemoryAllocationLib|MdeModulePkg/Library/DxeCoreMemoryAllocationLi
> b/DxeCoreMemoryAllocationLib.inf
> 
> @@ -238,7 +248,6 @@
> 
> 
>  [LibraryClasses.common.DXE_DRIVER]
> 
>    PcdLib|MdePkg/Library/DxePcdLib/DxePcdLib.inf
> 
> -  HobLib|MdePkg/Library/DxeHobLib/DxeHobLib.inf
> 
> 
> MemoryAllocationLib|MdePkg/Library/UefiMemoryAllocationLib/UefiMemo
> ryAllocationLib.inf
> 
> 
> ExtractGuidedSectionLib|MdePkg/Library/DxeExtractGuidedSectionLib/DxeE
> xtractGuidedSectionLib.inf
> 
> 
> ReportStatusCodeLib|MdeModulePkg/Library/DxeReportStatusCodeLib/Dx
> eReportStatusCodeLib.inf
> 
> @@ -251,7 +260,6 @@
> 
> 
>  [LibraryClasses.common.DXE_RUNTIME_DRIVER]
> 
>    PcdLib|MdePkg/Library/DxePcdLib/DxePcdLib.inf
> 
> -  HobLib|MdePkg/Library/DxeHobLib/DxeHobLib.inf
> 
> 
> MemoryAllocationLib|MdePkg/Library/UefiMemoryAllocationLib/UefiMemo
> ryAllocationLib.inf
> 
> 
> ReportStatusCodeLib|MdeModulePkg/Library/RuntimeDxeReportStatusCod
> eLib/RuntimeDxeReportStatusCodeLib.inf
> 
> 
> VariablePolicyLib|MdeModulePkg/Library/VariablePolicyLib/VariablePolicyLi
> bRuntimeDxe.inf
> 
> @@ -260,7 +268,6 @@
>    PcdLib|MdePkg/Library/DxePcdLib/DxePcdLib.inf
> 
> 
> MemoryAllocationLib|MdePkg/Library/UefiMemoryAllocationLib/UefiMemo
> ryAllocationLib.inf
> 
> 
> ReportStatusCodeLib|MdeModulePkg/Library/DxeReportStatusCodeLib/Dx
> eReportStatusCodeLib.inf
> 
> -  HobLib|MdePkg/Library/DxeHobLib/DxeHobLib.inf
> 
> 
> 
> 
> ##########################################################
> ######################
> 
>  #
> 
> --
> 2.16.2.windows.1