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MdeModulePkg/CapsuleApp: Add a function used to get next DevicePath 

BZ:https://bugzilla.tianocore.org/show_bug.cgi?id=1482

Add a new function to support Capsule-on-Disk feature.
This function is used to get next full DevicePath from a load option.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao Wu <hao.a.wu@intel.com>
Cc: Zhang Chao B <chao.b.zhang@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Chen A Chen <chen.a.chen@intel.com>
Reviewed-by: Jian J Wang <jian.j.wang@intel.com>
This commit is contained in:
Chen A Chen 2019-01-28 08:56:55 +08:00 committed by Liming Gao
parent 1cf40fbcf6
commit b4e1ad87d0
2 changed files with 43 additions and 2 deletions
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21
MdeModulePkg/Include/Library/UefiBootManagerLib.h
View File

@ -1,7 +1,7 @@
/** @file
Provide Boot Manager related library APIs.
Copyright (c) 2011 - 2018, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2011 - 2019, Intel Corporation. All rights reserved.<BR>
(C) Copyright 2015-2016 Hewlett Packard Enterprise Development LP<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
@ -445,6 +445,25 @@ EfiBootManagerGetBootManagerMenu (
EFI_BOOT_MANAGER_LOAD_OPTION *BootOption
);
/**
Get the next possible full path pointing to the load option.
The routine doesn't guarantee the returned full path points to an existing
file, and it also doesn't guarantee the existing file is a valid load option.
BmGetNextLoadOptionBuffer() guarantees.
@param FilePath The device path pointing to a load option.
It could be a short-form device path.
@param FullPath The full path returned by the routine in last call.
Set to NULL in first call.
@return The next possible full path pointing to the load option.
Caller is responsible to free the memory.
**/
EFI_DEVICE_PATH_PROTOCOL *
EfiBootManagerGetNextFullDevicePath (
IN EFI_DEVICE_PATH_PROTOCOL *FilePath,
IN EFI_DEVICE_PATH_PROTOCOL *FullPath
);
/**
Get the load option by its device path.

24
MdeModulePkg/Library/UefiBootManagerLib/BmBoot.c
View File

@ -1,7 +1,7 @@
/** @file
Library functions which relates with booting.
Copyright (c) 2011 - 2018, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2011 - 2019, Intel Corporation. All rights reserved.<BR>
(C) Copyright 2015-2016 Hewlett Packard Enterprise Development LP<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
@ -2457,3 +2457,25 @@ EfiBootManagerGetBootManagerMenu (
}
}
/**
Get the next possible full path pointing to the load option.
The routine doesn't guarantee the returned full path points to an existing
file, and it also doesn't guarantee the existing file is a valid load option.
BmGetNextLoadOptionBuffer() guarantees.
@param FilePath The device path pointing to a load option.
It could be a short-form device path.
@param FullPath The full path returned by the routine in last call.
Set to NULL in first call.
@return The next possible full path pointing to the load option.
Caller is responsible to free the memory.
**/
EFI_DEVICE_PATH_PROTOCOL *
EfiBootManagerGetNextFullDevicePath (
IN EFI_DEVICE_PATH_PROTOCOL *FilePath,
IN EFI_DEVICE_PATH_PROTOCOL *FullPath
)
{
return BmGetNextLoadOptionDevicePath(FilePath, FullPath);
}