回复: [edk2-devel] [PATCH] MdePkg/UefiDevicePathLib: reback the DevicePathUtilitiesStandaloneMm

["gaoliming" <gaoliming@byosoft.com.cn>]

Yanbo:
  Previous change has been reviewed and merged. Please see the detail
https://edk2.groups.io/g/devel/message/91799

Thanks
Liming
> -----邮件原件-----
> 发件人: devel@edk2.groups.io <devel@edk2.groups.io> 代表 Huang, Yanbo
> 发送时间: 2022年8月5日 10:42
> 收件人: devel@edk2.groups.io
> 抄送: Yanbo Huang <yanbo.huang@intel.com>; Michael D Kinney
> <michael.d.kinney@intel.com>; Liming Gao <gaoliming@byosoft.com.cn>;
> Zhiguang Liu <zhiguang.liu@intel.com>
> 主题: [edk2-devel] [PATCH] MdePkg/UefiDevicePathLib: reback the
> DevicePathUtilitiesStandaloneMm
> 
> From: Yanbo Huang <yanbo.huang@intel.com>
> 
> reback the DevicePathUtilitiesStandaloneMm to unblock the downstream
> sync
> 
> Signed-off-by: Yanbo Huang <yanbo.huang@intel.com>
> CC: Michael D Kinney <michael.d.kinney@intel.com>
> CC: Liming Gao <gaoliming@byosoft.com.cn>
> CC: Zhiguang Liu <zhiguang.liu@intel.com>
> 
> ---
>  .../DevicePathUtilitiesStandaloneMm.c         | 39 ++++++++++
>  .../UefiDevicePathLibStandaloneMm.inf         | 75
> +++++++++++++++++++
>  2 files changed, 114 insertions(+)
>  create mode 100644
> MdePkg/Library/UefiDevicePathLib/DevicePathUtilitiesStandaloneMm.c
>  create mode 100644
> MdePkg/Library/UefiDevicePathLib/UefiDevicePathLibStandaloneMm.inf
> 
> diff --git
> a/MdePkg/Library/UefiDevicePathLib/DevicePathUtilitiesStandaloneMm.c
> b/MdePkg/Library/UefiDevicePathLib/DevicePathUtilitiesStandaloneMm.c
> new file mode 100644
> index 0000000000..096f835b90
> --- /dev/null
> +++
> b/MdePkg/Library/UefiDevicePathLib/DevicePathUtilitiesStandaloneMm.c
> @@ -0,0 +1,39 @@
> +/** @file
> +  Device Path services. The thing to remember is device paths are built
out
> of
> +  nodes. The device path is terminated by an end node that is length
> +  sizeof(EFI_DEVICE_PATH_PROTOCOL). That would be why there is
> sizeof(EFI_DEVICE_PATH_PROTOCOL)
> +  all over this file.
> +
> +  The only place where multi-instance device paths are supported is in
> +  environment varibles. Multi-instance device paths should never be
placed
> +  on a Handle.
> +
> +  Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
> +  Copyright (c) Microsoft Corporation.
> +  SPDX-License-Identifier: BSD-2-Clause-Patent
> +
> +**/
> +
> +#include "UefiDevicePathLib.h"
> +
> +/**
> +  Retrieves the device path protocol from a handle.
> +
> +  This function returns the device path protocol from the handle
specified by
> Handle.
> +  If Handle is NULL or Handle does not contain a device path protocol,
then
> NULL
> +  is returned.
> +
> +  @param  Handle                     The handle from which to
> retrieve the device
> +                                     path protocol.
> +
> +  @return The device path protocol from the handle specified by Handle.
> +
> +**/
> +EFI_DEVICE_PATH_PROTOCOL *
> +EFIAPI
> +DevicePathFromHandle (
> +  IN EFI_HANDLE  Handle
> +  )
> +{
> +  return NULL;
> +}
> diff --git
> a/MdePkg/Library/UefiDevicePathLib/UefiDevicePathLibStandaloneMm.inf
> b/MdePkg/Library/UefiDevicePathLib/UefiDevicePathLibStandaloneMm.inf
> new file mode 100644
> index 0000000000..23fedf38b7
> --- /dev/null
> +++
> b/MdePkg/Library/UefiDevicePathLib/UefiDevicePathLibStandaloneMm.inf
> @@ -0,0 +1,75 @@
> +## @file
> +# Instance of Device Path Library based on Memory Allocation Library.
> +#
> +# Device Path Library that layers on top of the Memory Allocation
Library.
> +#
> +# Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>
> +# Copyright (c) Microsoft Corporation.
> +#
> +#  SPDX-License-Identifier: BSD-2-Clause-Patent
> +#
> +#
> +##
> +
> +[Defines]
> +  INF_VERSION                    = 0x00010005
> +  BASE_NAME                      = UefiDevicePathLib
> +  MODULE_UNI_FILE                = UefiDevicePathLib.uni
> +  FILE_GUID                      =
> D8E58437-44D3-4154-B7A7-EB794923EF12
> +  MODULE_TYPE                    = MM_STANDALONE
> +  PI_SPECIFICATION_VERSION       = 0x00010032
> +  VERSION_STRING                 = 1.0
> +  LIBRARY_CLASS                  = DevicePathLib |
> MM_STANDALONE MM_CORE_STANDALONE
> +
> +
> +#
> +#  VALID_ARCHITECTURES           = IA32 X64 EBC
> +#
> +
> +[Sources]
> +  DevicePathUtilities.c
> +  DevicePathUtilitiesStandaloneMm.c
> +  DevicePathToText.c
> +  DevicePathFromText.c
> +  UefiDevicePathLib.c
> +  UefiDevicePathLib.h
> +
> +[Packages]
> +  MdePkg/MdePkg.dec
> +
> +[LibraryClasses]
> +  BaseLib
> +  MemoryAllocationLib
> +  DebugLib
> +  BaseMemoryLib
> +  PcdLib
> +  PrintLib
> +
> +[Guids]
> +  ## SOMETIMES_CONSUMES  ## GUID
> +  gEfiVTUTF8Guid
> +  ## SOMETIMES_CONSUMES  ## GUID
> +  gEfiVT100Guid
> +  ## SOMETIMES_CONSUMES  ## GUID
> +  gEfiVT100PlusGuid
> +  ## SOMETIMES_CONSUMES  ## GUID
> +  gEfiPcAnsiGuid
> +  ## SOMETIMES_CONSUMES  ## GUID
> +  gEfiUartDevicePathGuid
> +  ## SOMETIMES_CONSUMES  ## GUID
> +  gEfiSasDevicePathGuid
> +  ## SOMETIMES_CONSUMES  ## GUID
> +  gEfiVirtualDiskGuid
> +  ## SOMETIMES_CONSUMES  ## GUID
> +  gEfiVirtualCdGuid
> +  ## SOMETIMES_CONSUMES  ## GUID
> +  gEfiPersistentVirtualDiskGuid
> +  ## SOMETIMES_CONSUMES  ## GUID
> +  gEfiPersistentVirtualCdGuid
> +
> +[Protocols]
> +  gEfiDevicePathProtocolGuid                    ##
> SOMETIMES_CONSUMES
> +  gEfiDebugPortProtocolGuid                     ## UNDEFINED
> +
> +[Pcd]
> +  gEfiMdePkgTokenSpaceGuid.PcdMaximumDevicePathNodeCount    ##
> SOMETIMES_CONSUMES
> --
> 2.31.1.windows.1
> 
> 
> 
> 
>