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ArmPkg/BdsLib: Added support to change the given DevicePath of a Boot Entry

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Some boot entries might not have a EFI Device Path FilePath
attached to it (eg: EFI device Path for removable device path).
This patch allows a support loader to edit the EFI Device Path
and for instance add \EFI\BOOT\BOOT(ARM|AA64).EFI

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Olivier Martin <olivier.martin@arm.com>



git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16930 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Olivier Martin
2015-02-25 19:04:59 +00:00
committed by oliviermartin
parent b097a180b8
commit df320b1084
2 changed files with 51 additions and 26 deletions
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29
ArmPkg/Library/BdsLib/BdsInternal.h
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@@ -1,6 +1,6 @@
/** @file
*
* Copyright (c) 2011-2012, ARM Limited. All rights reserved.
* Copyright (c) 2011-2015, ARM Limited. All rights reserved.
*
* This program and the accompanying materials
* are licensed and made available under the terms and conditions of the BSD License
@@ -45,14 +45,39 @@
#include <Uefi.h>
/**
* Check if the file loader can support this device path.
*
* @param DevicePath EFI Device Path of the image to load.
* This device path generally comes from the boot entry (ie: Boot####).
* @param Handle Handle of the driver supporting the device path
* @param RemainingDevicePath Part of the EFI Device Path that has not been resolved during
* the Device Path discovery
*/
typedef BOOLEAN (*BDS_FILE_LOADER_SUPPORT) (
IN EFI_DEVICE_PATH *DevicePath,
IN EFI_HANDLE Handle,
IN EFI_DEVICE_PATH *RemainingDevicePath
);
/**
* Function to load an image from a given Device Path for a
* specific support (FileSystem, TFTP, PXE, ...)
*
* @param DevicePath EFI Device Path of the image to load.
* This device path generally comes from the boot entry (ie: Boot####).
* This path is also defined as 'OUT' as there are some device paths that
* might not be completed such as EFI path for removable device. In these
* cases, it is expected the loader to add \EFI\BOOT\BOOT(ARM|AA64).EFI
* @param Handle Handle of the driver supporting the device path
* @param RemainingDevicePath Part of the EFI Device Path that has not been resolved during
* the Device Path discovery
* @param Type Define where the image should be loaded (see EFI_ALLOCATE_TYPE definition)
* @param Image Base Address of the image has been loaded
* @param ImageSize Size of the image that has been loaded
*/
typedef EFI_STATUS (*BDS_FILE_LOADER_LOAD_IMAGE) (
IN EFI_DEVICE_PATH *DevicePath,
IN OUT EFI_DEVICE_PATH **DevicePath,
IN EFI_HANDLE Handle,
IN EFI_DEVICE_PATH *RemainingDevicePath,
IN EFI_ALLOCATE_TYPE Type,