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authorOlivier Martin <olivier.martin@arm.com>2015-02-25 19:04:59 +0000
committeroliviermartin <oliviermartin@Edk2>2015-02-25 19:04:59 +0000
commitdf320b1084907173f100208c06d00b05f4d52b2b (patch)
tree106be61d74ae91eaccb4f87d4e4d1a2374fedb3a /ArmPkg/Library
parentb097a180b88b1f2e26a3589ba7fc635df81b4524 (diff)
downloadedk2-platforms-df320b1084907173f100208c06d00b05f4d52b2b.tar.xz
ArmPkg/BdsLib: Added support to change the given DevicePath of a Boot Entry
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
Diffstat (limited to 'ArmPkg/Library')
-rw-r--r--ArmPkg/Library/BdsLib/BdsFilePath.c48
-rw-r--r--ArmPkg/Library/BdsLib/BdsInternal.h29
2 files changed, 51 insertions, 26 deletions
diff --git a/ArmPkg/Library/BdsLib/BdsFilePath.c b/ArmPkg/Library/BdsLib/BdsFilePath.c
index 924c61ed34..a0a949d014 100644
--- a/ArmPkg/Library/BdsLib/BdsFilePath.c
+++ b/ArmPkg/Library/BdsLib/BdsFilePath.c
@@ -467,7 +467,7 @@ BdsFileSystemSupport (
EFI_STATUS
BdsFileSystemLoadImage (
- 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,
@@ -560,9 +560,9 @@ BdsMemoryMapSupport (
EFI_STATUS
BdsMemoryMapLoadImage (
- IN EFI_DEVICE_PATH *DevicePath,
- IN EFI_HANDLE Handle,
- IN EFI_DEVICE_PATH *RemainingDevicePath,
+ IN OUT EFI_DEVICE_PATH **DevicePath,
+ IN EFI_HANDLE Handle,
+ IN EFI_DEVICE_PATH *RemainingDevicePath,
IN EFI_ALLOCATE_TYPE Type,
IN OUT EFI_PHYSICAL_ADDRESS* Image,
OUT UINTN *ImageSize
@@ -575,8 +575,8 @@ BdsMemoryMapLoadImage (
if (IS_DEVICE_PATH_NODE (RemainingDevicePath, HARDWARE_DEVICE_PATH, HW_MEMMAP_DP)) {
MemMapPathDevicePath = (MEMMAP_DEVICE_PATH*)RemainingDevicePath;
} else {
- ASSERT (IS_DEVICE_PATH_NODE (DevicePath, HARDWARE_DEVICE_PATH, HW_MEMMAP_DP));
- MemMapPathDevicePath = (MEMMAP_DEVICE_PATH*)DevicePath;
+ ASSERT (IS_DEVICE_PATH_NODE (*DevicePath, HARDWARE_DEVICE_PATH, HW_MEMMAP_DP));
+ MemMapPathDevicePath = (MEMMAP_DEVICE_PATH*)*DevicePath;
}
Size = MemMapPathDevicePath->EndingAddress - MemMapPathDevicePath->StartingAddress;
@@ -612,9 +612,9 @@ BdsFirmwareVolumeSupport (
EFI_STATUS
BdsFirmwareVolumeLoadImage (
- IN EFI_DEVICE_PATH *DevicePath,
- IN EFI_HANDLE Handle,
- IN EFI_DEVICE_PATH *RemainingDevicePath,
+ IN OUT EFI_DEVICE_PATH **DevicePath,
+ IN EFI_HANDLE Handle,
+ IN EFI_DEVICE_PATH *RemainingDevicePath,
IN EFI_ALLOCATE_TYPE Type,
IN OUT EFI_PHYSICAL_ADDRESS* Image,
OUT UINTN *ImageSize
@@ -733,12 +733,12 @@ BdsPxeSupport (
EFI_STATUS
BdsPxeLoadImage (
- IN EFI_DEVICE_PATH* DevicePath,
- IN EFI_HANDLE Handle,
- IN EFI_DEVICE_PATH* RemainingDevicePath,
- IN EFI_ALLOCATE_TYPE Type,
- IN OUT EFI_PHYSICAL_ADDRESS *Image,
- OUT UINTN *ImageSize
+ IN OUT EFI_DEVICE_PATH **DevicePath,
+ IN EFI_HANDLE Handle,
+ IN EFI_DEVICE_PATH *RemainingDevicePath,
+ IN EFI_ALLOCATE_TYPE Type,
+ IN OUT EFI_PHYSICAL_ADDRESS* Image,
+ OUT UINTN *ImageSize
)
{
EFI_STATUS Status;
@@ -752,14 +752,14 @@ BdsPxeLoadImage (
return Status;
}
- Status = LoadFileProtocol->LoadFile (LoadFileProtocol, DevicePath, TRUE, &BufferSize, NULL);
+ Status = LoadFileProtocol->LoadFile (LoadFileProtocol, *DevicePath, TRUE, &BufferSize, NULL);
if (Status == EFI_BUFFER_TOO_SMALL) {
Status = gBS->AllocatePages (Type, EfiBootServicesCode, EFI_SIZE_TO_PAGES(BufferSize), Image);
if (EFI_ERROR (Status)) {
return Status;
}
- Status = LoadFileProtocol->LoadFile (LoadFileProtocol, DevicePath, TRUE, &BufferSize, (VOID*)(UINTN)(*Image));
+ Status = LoadFileProtocol->LoadFile (LoadFileProtocol, *DevicePath, TRUE, &BufferSize, (VOID*)(UINTN)(*Image));
if (!EFI_ERROR (Status) && (ImageSize != NULL)) {
*ImageSize = BufferSize;
}
@@ -1018,12 +1018,12 @@ Mtftp4CheckPacket (
**/
EFI_STATUS
BdsTftpLoadImage (
- IN EFI_DEVICE_PATH* DevicePath,
- IN EFI_HANDLE ControllerHandle,
- IN EFI_DEVICE_PATH* RemainingDevicePath,
- IN EFI_ALLOCATE_TYPE Type,
- IN OUT EFI_PHYSICAL_ADDRESS *Image,
- OUT UINTN *ImageSize
+ IN OUT EFI_DEVICE_PATH **DevicePath,
+ IN EFI_HANDLE ControllerHandle,
+ IN EFI_DEVICE_PATH *RemainingDevicePath,
+ IN EFI_ALLOCATE_TYPE Type,
+ IN OUT EFI_PHYSICAL_ADDRESS *Image,
+ OUT UINTN *ImageSize
)
{
EFI_STATUS Status;
@@ -1340,7 +1340,7 @@ BdsLoadImageAndUpdateDevicePath (
FileLoader = FileLoaders;
while (FileLoader->Support != NULL) {
if (FileLoader->Support (*DevicePath, Handle, RemainingDevicePath)) {
- return FileLoader->LoadImage (*DevicePath, Handle, RemainingDevicePath, Type, Image, FileSize);
+ return FileLoader->LoadImage (DevicePath, Handle, RemainingDevicePath, Type, Image, FileSize);
}
FileLoader++;
}
diff --git a/ArmPkg/Library/BdsLib/BdsInternal.h b/ArmPkg/Library/BdsLib/BdsInternal.h
index 602fd8dcf3..a29d8ccd8b 100644
--- a/ArmPkg/Library/BdsLib/BdsInternal.h
+++ b/ArmPkg/Library/BdsLib/BdsInternal.h
@@ -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,