diff options
| author | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2017-11-20 10:51:19 +0000 |
|---|---|---|
| committer | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2017-11-26 10:26:55 +0000 |
| commit | 8c3be6b7a28b6f033c236c38c2ed63ec8f9c0947 (patch) | |
| tree | 6953225607abe73953361fd5378739ffed5cb77b /Platform/ARM/Library/BdsLib/BdsAppLoader.c | |
| parent | 4591a21d5a8e43ecdbcd13c12c90f5e46dd5dab3 (diff) | |
| download | edk2-platforms-8c3be6b7a28b6f033c236c38c2ed63ec8f9c0947.tar.xz | |
Platform/ARM: import BdsLib from ArmPkg
We are about to migrate the only remaining user of the deprecated ARM
BdsLib, i.e., FdtPlatformDxe, into Platform/ARM. So create our own
copy of BdsLib, allowing us to finally remove it from upstream EDK2.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
Diffstat (limited to 'Platform/ARM/Library/BdsLib/BdsAppLoader.c')
| -rw-r--r-- | Platform/ARM/Library/BdsLib/BdsAppLoader.c | 253 |
1 files changed, 253 insertions, 0 deletions
diff --git a/Platform/ARM/Library/BdsLib/BdsAppLoader.c b/Platform/ARM/Library/BdsLib/BdsAppLoader.c new file mode 100644 index 0000000000..1f208f8dd7 --- /dev/null +++ b/Platform/ARM/Library/BdsLib/BdsAppLoader.c @@ -0,0 +1,253 @@ +/** @file
+*
+* 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
+* which accompanies this distribution. The full text of the license may be found at
+* http://opensource.org/licenses/bsd-license.php
+*
+* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+*
+**/
+
+#include "BdsInternal.h"
+
+/**
+ Locate an EFI application in a the Firmware Volumes by its Name
+
+ @param EfiAppGuid Guid of the EFI Application into the Firmware Volume
+ @param DevicePath EFI Device Path of the EFI application
+
+ @return EFI_SUCCESS The function completed successfully.
+ @return EFI_NOT_FOUND The protocol could not be located.
+ @return EFI_OUT_OF_RESOURCES There are not enough resources to find the protocol.
+
+**/
+EFI_STATUS
+LocateEfiApplicationInFvByName (
+ IN CONST CHAR16* EfiAppName,
+ OUT EFI_DEVICE_PATH **DevicePath
+ )
+{
+ VOID *Key;
+ EFI_STATUS Status, FileStatus;
+ EFI_GUID NameGuid;
+ EFI_FV_FILETYPE FileType;
+ EFI_FV_FILE_ATTRIBUTES Attributes;
+ UINTN Size;
+ UINTN UiStringLen;
+ CHAR16 *UiSection;
+ UINT32 Authentication;
+ EFI_DEVICE_PATH *FvDevicePath;
+ MEDIA_FW_VOL_FILEPATH_DEVICE_PATH FileDevicePath;
+ EFI_HANDLE *HandleBuffer;
+ UINTN NumberOfHandles;
+ UINTN Index;
+ EFI_FIRMWARE_VOLUME2_PROTOCOL *FvInstance;
+
+ ASSERT (DevicePath != NULL);
+
+ // Length of FilePath
+ UiStringLen = StrLen (EfiAppName);
+
+ // Locate all the Firmware Volume protocols.
+ Status = gBS->LocateHandleBuffer (
+ ByProtocol,
+ &gEfiFirmwareVolume2ProtocolGuid,
+ NULL,
+ &NumberOfHandles,
+ &HandleBuffer
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ *DevicePath = NULL;
+
+ // Looking for FV with ACPI storage file
+ for (Index = 0; Index < NumberOfHandles; Index++) {
+ //
+ // Get the protocol on this handle
+ // This should not fail because of LocateHandleBuffer
+ //
+ Status = gBS->HandleProtocol (
+ HandleBuffer[Index],
+ &gEfiFirmwareVolume2ProtocolGuid,
+ (VOID**) &FvInstance
+ );
+ if (EFI_ERROR (Status)) {
+ goto FREE_HANDLE_BUFFER;
+ }
+
+ // Allocate Key
+ Key = AllocatePool (FvInstance->KeySize);
+ ASSERT (Key != NULL);
+ ZeroMem (Key, FvInstance->KeySize);
+
+ do {
+ // Search in all files
+ FileType = EFI_FV_FILETYPE_ALL;
+
+ Status = FvInstance->GetNextFile (FvInstance, Key, &FileType, &NameGuid, &Attributes, &Size);
+ if (!EFI_ERROR (Status)) {
+ UiSection = NULL;
+ FileStatus = FvInstance->ReadSection (
+ FvInstance,
+ &NameGuid,
+ EFI_SECTION_USER_INTERFACE,
+ 0,
+ (VOID **)&UiSection,
+ &Size,
+ &Authentication
+ );
+ if (!EFI_ERROR (FileStatus)) {
+ if (StrnCmp (EfiAppName, UiSection, UiStringLen) == 0) {
+ //
+ // We found a UiString match.
+ //
+ Status = gBS->HandleProtocol (HandleBuffer[Index], &gEfiDevicePathProtocolGuid, (VOID **)&FvDevicePath);
+
+ // Generate the Device Path for the file
+ EfiInitializeFwVolDevicepathNode (&FileDevicePath, &NameGuid);
+ *DevicePath = AppendDevicePathNode (FvDevicePath, (EFI_DEVICE_PATH_PROTOCOL *)&FileDevicePath);
+ ASSERT (*DevicePath != NULL);
+
+ FreePool (Key);
+ FreePool (UiSection);
+ FreePool (HandleBuffer);
+ return FileStatus;
+ }
+ FreePool (UiSection);
+ }
+ }
+ } while (!EFI_ERROR (Status));
+
+ FreePool (Key);
+ }
+
+FREE_HANDLE_BUFFER:
+ FreePool (HandleBuffer);
+ return EFI_NOT_FOUND;
+}
+
+/**
+ Locate an EFI application in a the Firmware Volumes by its GUID
+
+ @param EfiAppGuid Guid of the EFI Application into the Firmware Volume
+ @param DevicePath EFI Device Path of the EFI application
+
+ @return EFI_SUCCESS The function completed successfully.
+ @return EFI_NOT_FOUND The protocol could not be located.
+ @return EFI_OUT_OF_RESOURCES There are not enough resources to find the protocol.
+
+**/
+EFI_STATUS
+LocateEfiApplicationInFvByGuid (
+ IN CONST EFI_GUID *EfiAppGuid,
+ OUT EFI_DEVICE_PATH **DevicePath
+ )
+{
+ EFI_STATUS Status;
+ EFI_DEVICE_PATH *FvDevicePath;
+ EFI_HANDLE *HandleBuffer;
+ UINTN NumberOfHandles;
+ UINTN Index;
+ EFI_FIRMWARE_VOLUME2_PROTOCOL *FvInstance;
+ EFI_FV_FILE_ATTRIBUTES Attributes;
+ UINT32 AuthenticationStatus;
+ EFI_FV_FILETYPE Type;
+ UINTN Size;
+ CHAR16 *UiSection;
+ MEDIA_FW_VOL_FILEPATH_DEVICE_PATH FvFileDevicePath;
+
+ ASSERT (DevicePath != NULL);
+
+ // Locate all the Firmware Volume protocols.
+ Status = gBS->LocateHandleBuffer (
+ ByProtocol,
+ &gEfiFirmwareVolume2ProtocolGuid,
+ NULL,
+ &NumberOfHandles,
+ &HandleBuffer
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ *DevicePath = NULL;
+
+ // Looking for FV with ACPI storage file
+ for (Index = 0; Index < NumberOfHandles; Index++) {
+ //
+ // Get the protocol on this handle
+ // This should not fail because of LocateHandleBuffer
+ //
+ Status = gBS->HandleProtocol (
+ HandleBuffer[Index],
+ &gEfiFirmwareVolume2ProtocolGuid,
+ (VOID**) &FvInstance
+ );
+ if (EFI_ERROR (Status)) {
+ goto FREE_HANDLE_BUFFER;
+ }
+
+ Status = FvInstance->ReadFile (
+ FvInstance,
+ EfiAppGuid,
+ NULL,
+ &Size,
+ &Type,
+ &Attributes,
+ &AuthenticationStatus
+ );
+ if (EFI_ERROR (Status)) {
+ //
+ // Skip if no EFI application file in the FV
+ //
+ continue;
+ } else {
+ UiSection = NULL;
+ Status = FvInstance->ReadSection (
+ FvInstance,
+ EfiAppGuid,
+ EFI_SECTION_USER_INTERFACE,
+ 0,
+ (VOID **)&UiSection,
+ &Size,
+ &AuthenticationStatus
+ );
+ if (!EFI_ERROR (Status)) {
+ //
+ // Create the EFI Device Path for the application using the Filename of the application
+ //
+ *DevicePath = FileDevicePath (HandleBuffer[Index], UiSection);
+ } else {
+ Status = gBS->HandleProtocol (HandleBuffer[Index], &gEfiDevicePathProtocolGuid, (VOID**)&FvDevicePath);
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Create the EFI Device Path for the application using the EFI GUID of the application
+ //
+ EfiInitializeFwVolDevicepathNode (&FvFileDevicePath, EfiAppGuid);
+
+ *DevicePath = AppendDevicePathNode (FvDevicePath, (EFI_DEVICE_PATH_PROTOCOL *)&FvFileDevicePath);
+ ASSERT (*DevicePath != NULL);
+ }
+ break;
+ }
+ }
+
+FREE_HANDLE_BUFFER:
+ //
+ // Free any allocated buffers
+ //
+ FreePool (HandleBuffer);
+
+ if (*DevicePath == NULL) {
+ return EFI_NOT_FOUND;
+ } else {
+ return EFI_SUCCESS;
+ }
+}
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