-/** @file
-*
-* Copyright (c) 2011, 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"
-
-// Count the number of DevicePath Node
-static UINTN NumberNodeFromDevicePath(
- IN EFI_DEVICE_PATH_PROTOCOL* DevicePath
-) {
- UINTN NumberDevicePathNode = 0;
-
- while (!IsDevicePathEnd (DevicePath)) {
- NumberDevicePathNode++;
- DevicePath = NextDevicePathNode(DevicePath);
- }
- return NumberDevicePathNode;
-}
-
-// Extract the FilePath from the Device Path
-CHAR16* BdsExtractFilePathFromDevicePath(
- IN CONST CHAR16 *StrDevicePath,
- IN UINTN NumberDevicePathNode
-) {
- UINTN Node;
- CHAR16 *Str;
-
- Str = (CHAR16*)StrDevicePath;
- Node = 0;
- while ((Str != NULL) && (*Str != L'\0') && (Node < NumberDevicePathNode)) {
- if ((*Str == L'/') || (*Str == L'\\')) {
- Node++;
- }
- Str++;
- }
-
- if (*Str == L'\0') {
- return NULL;
- } else {
- return Str;
- }
-}
-
-EFI_STATUS
-BdsLoadDevicePath(
- IN EFI_DEVICE_PATH_PROTOCOL* DevicePath,
- OUT EFI_HANDLE *Handle
-) {
- EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath;
- EFI_STATUS Status;
-
- if ((DevicePath == NULL) || (Handle == NULL)) {
- return EFI_INVALID_PARAMETER;
- }
-
- do {
- RemainingDevicePath = DevicePath;
- // The LocateDevicePath() function locates all devices on DevicePath that support Protocol and returns
- // the handle to the device that is closest to DevicePath. On output, the device path pointer is modified
- // to point to the remaining part of the device path
- Status = gBS->LocateDevicePath(&gEfiDevicePathProtocolGuid,&RemainingDevicePath,Handle);
- if (!EFI_ERROR (Status)) {
- // Recursive = FALSE: We do not want to start all the device tree
- Status = gBS->ConnectController (*Handle, NULL, RemainingDevicePath, FALSE);
- }
-
- // We need to check if RemainingDevicePath does not point on the last node. Otherwise, calling
- // NextDevicePathNode() will return an undetermined Device Path Node
- if (!IsDevicePathEnd (RemainingDevicePath)) {
- RemainingDevicePath = NextDevicePathNode (RemainingDevicePath);
- }
- } while (!EFI_ERROR (Status) && !IsDevicePathEnd (RemainingDevicePath));
-
- if (!EFI_ERROR (Status)) {
- // Now, we have got the whole Device Path connected, call again ConnectController to ensure all the supported Driver
- // Binding Protocol are connected (such as DiskIo and SimpleFileSystem)
- RemainingDevicePath = DevicePath;
- Status = gBS->LocateDevicePath(&gEfiDevicePathProtocolGuid,&RemainingDevicePath,Handle);
- if (!EFI_ERROR (Status)) {
- Status = gBS->ConnectController (*Handle, NULL, RemainingDevicePath, FALSE);
- if (EFI_ERROR (Status)) {
- // If the last node is a Memory Map Device Path just return EFI_SUCCESS.
- if ((RemainingDevicePath->Type == HARDWARE_DEVICE_PATH) && (RemainingDevicePath->SubType == HW_MEMMAP_DP)) {
- Status = EFI_SUCCESS;
- }
- }
- }
- } else if (IsDevicePathEnd (RemainingDevicePath)) {
- // Case when the DevicePath contains a MemoryMap Device Path Node and all drivers are connected.
- // Ensure the Device Path exists
- RemainingDevicePath = DevicePath;
- Status = gBS->LocateDevicePath(&gEfiDevicePathProtocolGuid,&RemainingDevicePath,Handle);
- }
-
- return Status;
-}
-
-
-EFI_STATUS
-BdsLoadFilePath (
- IN CONST CHAR16 *DeviceFilePath,
- OUT BDS_FILE *File
-) {
- EFI_DEVICE_PATH_PROTOCOL *DevicePath;
- EFI_DEVICE_PATH_FROM_TEXT_PROTOCOL *EfiDevicePathFromTextProtocol;
- EFI_STATUS Status;
- EFI_HANDLE Handle;
- UINTN NumberDevicePathNode;
- CHAR16 *FilePath;
-
- //Do a sanity check on the Device file path
- if (DeviceFilePath == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- // Convert the Device Path String into Device Path Protocol
- Status = gBS->LocateProtocol(&gEfiDevicePathFromTextProtocolGuid, NULL, (VOID **)&EfiDevicePathFromTextProtocol);
- ASSERT_EFI_ERROR(Status);
- DevicePath = EfiDevicePathFromTextProtocol->ConvertTextToDevicePath(DeviceFilePath);
-
- //Do a sanity check on the Device Path
- if (DevicePath == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- // Count the number of DevicePath Node
- NumberDevicePathNode = NumberNodeFromDevicePath(DevicePath);
- // Extract the FilePath from the Device Path
- FilePath = BdsExtractFilePathFromDevicePath(DeviceFilePath,NumberDevicePathNode);
-
- Status = BdsLoadDevicePath(DevicePath,&Handle);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- //If FilePath == NULL then let consider if a MemoryMap Device Path
- if (FilePath == NULL) {
- // Check if the Node is a MemoryMap Device Path
- Status = BdsLoadFileFromMemMap(Handle,DevicePath,File);
- } else {
- Status = BdsLoadFileFromSimpleFileSystem(Handle,FilePath,File);
- if (EFI_ERROR (Status)) {
- Status = BdsLoadFileFromFirmwareVolume(Handle,FilePath,EFI_FV_FILETYPE_ALL,File);
- }
- }
-
- if (!EFI_ERROR (Status)) {
- File->DevicePath = DevicePath;
- }
-
- return Status;
-}
-
-EFI_STATUS BdsCopyRawFileToRuntimeMemory(
- IN BDS_FILE *File,
- OUT VOID **FileImage,
- OUT UINTN *FileSize
-) {
- if (File == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- if (File->Type == BDS_FILETYPE_FS) {
- return BdsCopyRawFileToRuntimeMemoryFS(File->File.Fs.Handle,FileImage,FileSize);
- } else if (File->Type == BDS_FILETYPE_FV) {
- return BdsCopyRawFileToRuntimeMemoryFV(&(File->File.Fv),FileImage,FileSize);
- } else if (File->Type == BDS_FILETYPE_MEM) {
- return BdsCopyRawFileToRuntimeMemoryMemMap(&(File->File.Mem),FileImage,FileSize);
- } else {
- return EFI_INVALID_PARAMETER;
- }
-}
+/** @file\r
+*\r
+* Copyright (c) 2011-2014, ARM Limited. All rights reserved.\r
+*\r
+* This program and the accompanying materials\r
+* are licensed and made available under the terms and conditions of the BSD License\r
+* which accompanies this distribution. The full text of the license may be found at\r
+* http://opensource.org/licenses/bsd-license.php\r
+*\r
+* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+*\r
+**/\r
+\r
+#include "BdsInternal.h"\r
+\r
+#include <Library/NetLib.h>\r
+\r
+#include <Protocol/Bds.h>\r
+#include <Protocol/UsbIo.h>\r
+#include <Protocol/DiskIo.h>\r
+#include <Protocol/LoadedImage.h>\r
+#include <Protocol/SimpleNetwork.h>\r
+#include <Protocol/Dhcp4.h>\r
+#include <Protocol/Mtftp4.h>\r
+\r
+/* Type and defines to set up the DHCP4 options */\r
+\r
+typedef struct {\r
+ EFI_DHCP4_PACKET_OPTION Head;\r
+ UINT8 Route;\r
+} DHCP4_OPTION;\r
+\r
+#define DHCP_TAG_PARA_LIST 55\r
+#define DHCP_TAG_NETMASK 1\r
+#define DHCP_TAG_ROUTER 3\r
+\r
+/*\r
+ Constant strings and define related to the message indicating the amount of\r
+ progress in the dowloading of a TFTP file.\r
+*/\r
+\r
+// Frame for the progression slider\r
+STATIC CONST CHAR16 mTftpProgressFrame[] = L"[ ]";\r
+\r
+// Number of steps in the progression slider\r
+#define TFTP_PROGRESS_SLIDER_STEPS ((sizeof (mTftpProgressFrame) / sizeof (CHAR16)) - 3)\r
+\r
+// Size in number of characters plus one (final zero) of the message to\r
+// indicate the progress of a tftp download. The format is "[(progress slider:\r
+// 40 characters)] (nb of KBytes downloaded so far: 7 characters) Kb". There\r
+// are thus the number of characters in mTftpProgressFrame[] plus 11 characters\r
+// (2 // spaces, "Kb" and seven characters for the number of KBytes).\r
+#define TFTP_PROGRESS_MESSAGE_SIZE ((sizeof (mTftpProgressFrame) / sizeof (CHAR16)) + 12)\r
+\r
+// String to delete the tftp progress message to be able to update it :\r
+// (TFTP_PROGRESS_MESSAGE_SIZE-1) '\b'\r
+STATIC CONST CHAR16 mTftpProgressDelete[] = L"\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b";\r
+\r
+\r
+// Extract the FilePath from the Device Path\r
+CHAR16*\r
+BdsExtractFilePathFromDevicePath (\r
+ IN CONST CHAR16 *StrDevicePath,\r
+ IN UINTN NumberDevicePathNode\r
+ )\r
+{\r
+ UINTN Node;\r
+ CHAR16 *Str;\r
+\r
+ Str = (CHAR16*)StrDevicePath;\r
+ Node = 0;\r
+ while ((Str != NULL) && (*Str != L'\0') && (Node < NumberDevicePathNode)) {\r
+ if ((*Str == L'/') || (*Str == L'\\')) {\r
+ Node++;\r
+ }\r
+ Str++;\r
+ }\r
+\r
+ if (*Str == L'\0') {\r
+ return NULL;\r
+ } else {\r
+ return Str;\r
+ }\r
+}\r
+\r
+BOOLEAN\r
+BdsIsRemovableUsb (\r
+ IN EFI_DEVICE_PATH* DevicePath\r
+ )\r
+{\r
+ return ((DevicePathType (DevicePath) == MESSAGING_DEVICE_PATH) &&\r
+ ((DevicePathSubType (DevicePath) == MSG_USB_CLASS_DP) ||\r
+ (DevicePathSubType (DevicePath) == MSG_USB_WWID_DP)));\r
+}\r
+\r
+EFI_STATUS\r
+BdsGetDeviceUsb (\r
+ IN EFI_DEVICE_PATH* RemovableDevicePath,\r
+ OUT EFI_HANDLE* DeviceHandle,\r
+ OUT EFI_DEVICE_PATH** NewDevicePath\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ UINTN Index;\r
+ UINTN UsbIoHandleCount;\r
+ EFI_HANDLE *UsbIoBuffer;\r
+ EFI_DEVICE_PATH* UsbIoDevicePath;\r
+ EFI_DEVICE_PATH* TmpDevicePath;\r
+ USB_WWID_DEVICE_PATH* WwidDevicePath1;\r
+ USB_WWID_DEVICE_PATH* WwidDevicePath2;\r
+ USB_CLASS_DEVICE_PATH* UsbClassDevicePath1;\r
+ USB_CLASS_DEVICE_PATH* UsbClassDevicePath2;\r
+\r
+ // Get all the UsbIo handles\r
+ UsbIoHandleCount = 0;\r
+ Status = gBS->LocateHandleBuffer (ByProtocol, &gEfiUsbIoProtocolGuid, NULL, &UsbIoHandleCount, &UsbIoBuffer);\r
+ if (EFI_ERROR (Status) || (UsbIoHandleCount == 0)) {\r
+ return Status;\r
+ }\r
+\r
+ // Check if one of the handles matches the USB description\r
+ for (Index = 0; Index < UsbIoHandleCount; Index++) {\r
+ Status = gBS->HandleProtocol (UsbIoBuffer[Index], &gEfiDevicePathProtocolGuid, (VOID **) &UsbIoDevicePath);\r
+ if (!EFI_ERROR (Status)) {\r
+ TmpDevicePath = UsbIoDevicePath;\r
+ while (!IsDevicePathEnd (TmpDevicePath)) {\r
+ // Check if the Device Path node is a USB Removable device Path node\r
+ if (BdsIsRemovableUsb (TmpDevicePath)) {\r
+ if (TmpDevicePath->SubType == MSG_USB_WWID_DP) {\r
+ WwidDevicePath1 = (USB_WWID_DEVICE_PATH*)RemovableDevicePath;\r
+ WwidDevicePath2 = (USB_WWID_DEVICE_PATH*)TmpDevicePath;\r
+ if ((WwidDevicePath1->VendorId == WwidDevicePath2->VendorId) &&\r
+ (WwidDevicePath1->ProductId == WwidDevicePath2->ProductId) &&\r
+ (CompareMem (WwidDevicePath1+1, WwidDevicePath2+1, DevicePathNodeLength(WwidDevicePath1)-sizeof (USB_WWID_DEVICE_PATH)) == 0))\r
+ {\r
+ *DeviceHandle = UsbIoBuffer[Index];\r
+ // Add the additional original Device Path Nodes (eg: FilePath Device Path Node) to the new Device Path\r
+ *NewDevicePath = AppendDevicePath (UsbIoDevicePath, NextDevicePathNode (RemovableDevicePath));\r
+ return EFI_SUCCESS;\r
+ }\r
+ } else {\r
+ UsbClassDevicePath1 = (USB_CLASS_DEVICE_PATH*)RemovableDevicePath;\r
+ UsbClassDevicePath2 = (USB_CLASS_DEVICE_PATH*)TmpDevicePath;\r
+ if ((UsbClassDevicePath1->VendorId != 0xFFFF) && (UsbClassDevicePath1->VendorId == UsbClassDevicePath2->VendorId) &&\r
+ (UsbClassDevicePath1->ProductId != 0xFFFF) && (UsbClassDevicePath1->ProductId == UsbClassDevicePath2->ProductId) &&\r
+ (UsbClassDevicePath1->DeviceClass != 0xFF) && (UsbClassDevicePath1->DeviceClass == UsbClassDevicePath2->DeviceClass) &&\r
+ (UsbClassDevicePath1->DeviceSubClass != 0xFF) && (UsbClassDevicePath1->DeviceSubClass == UsbClassDevicePath2->DeviceSubClass) &&\r
+ (UsbClassDevicePath1->DeviceProtocol != 0xFF) && (UsbClassDevicePath1->DeviceProtocol == UsbClassDevicePath2->DeviceProtocol))\r
+ {\r
+ *DeviceHandle = UsbIoBuffer[Index];\r
+ // Add the additional original Device Path Nodes (eg: FilePath Device Path Node) to the new Device Path\r
+ *NewDevicePath = AppendDevicePath (UsbIoDevicePath, NextDevicePathNode (RemovableDevicePath));\r
+ return EFI_SUCCESS;\r
+ }\r
+ }\r
+ }\r
+ TmpDevicePath = NextDevicePathNode (TmpDevicePath);\r
+ }\r
+\r
+ }\r
+ }\r
+\r
+ return EFI_NOT_FOUND;\r
+}\r
+\r
+BOOLEAN\r
+BdsIsRemovableHd (\r
+ IN EFI_DEVICE_PATH* DevicePath\r
+ )\r
+{\r
+ return IS_DEVICE_PATH_NODE (DevicePath, MEDIA_DEVICE_PATH, MEDIA_HARDDRIVE_DP);\r
+}\r
+\r
+EFI_STATUS\r
+BdsGetDeviceHd (\r
+ IN EFI_DEVICE_PATH* RemovableDevicePath,\r
+ OUT EFI_HANDLE* DeviceHandle,\r
+ OUT EFI_DEVICE_PATH** NewDevicePath\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ UINTN Index;\r
+ UINTN PartitionHandleCount;\r
+ EFI_HANDLE *PartitionBuffer;\r
+ EFI_DEVICE_PATH* PartitionDevicePath;\r
+ EFI_DEVICE_PATH* TmpDevicePath;\r
+ HARDDRIVE_DEVICE_PATH* HardDriveDevicePath1;\r
+ HARDDRIVE_DEVICE_PATH* HardDriveDevicePath2;\r
+\r
+ // Get all the DiskIo handles\r
+ PartitionHandleCount = 0;\r
+ Status = gBS->LocateHandleBuffer (ByProtocol, &gEfiDiskIoProtocolGuid, NULL, &PartitionHandleCount, &PartitionBuffer);\r
+ if (EFI_ERROR (Status) || (PartitionHandleCount == 0)) {\r
+ return Status;\r
+ }\r
+\r
+ // Check if one of the handles matches the Hard Disk Description\r
+ for (Index = 0; Index < PartitionHandleCount; Index++) {\r
+ Status = gBS->HandleProtocol (PartitionBuffer[Index], &gEfiDevicePathProtocolGuid, (VOID **) &PartitionDevicePath);\r
+ if (!EFI_ERROR (Status)) {\r
+ TmpDevicePath = PartitionDevicePath;\r
+ while (!IsDevicePathEnd (TmpDevicePath)) {\r
+ // Check if the Device Path node is a HD Removable device Path node\r
+ if (BdsIsRemovableHd (TmpDevicePath)) {\r
+ HardDriveDevicePath1 = (HARDDRIVE_DEVICE_PATH*)RemovableDevicePath;\r
+ HardDriveDevicePath2 = (HARDDRIVE_DEVICE_PATH*)TmpDevicePath;\r
+ if ((HardDriveDevicePath1->SignatureType == HardDriveDevicePath2->SignatureType) &&\r
+ (CompareGuid ((EFI_GUID *)HardDriveDevicePath1->Signature, (EFI_GUID *)HardDriveDevicePath2->Signature) == TRUE) &&\r
+ (HardDriveDevicePath1->PartitionNumber == HardDriveDevicePath2->PartitionNumber))\r
+ {\r
+ *DeviceHandle = PartitionBuffer[Index];\r
+ // Add the additional original Device Path Nodes (eg: FilePath Device Path Node) to the new Device Path\r
+ *NewDevicePath = AppendDevicePath (PartitionDevicePath, NextDevicePathNode (RemovableDevicePath));\r
+ return EFI_SUCCESS;\r
+ }\r
+ }\r
+ TmpDevicePath = NextDevicePathNode (TmpDevicePath);\r
+ }\r
+\r
+ }\r
+ }\r
+\r
+ return EFI_NOT_FOUND;\r
+}\r
+\r
+/*BOOLEAN\r
+BdsIsRemovableCdrom (\r
+ IN EFI_DEVICE_PATH* DevicePath\r
+ )\r
+{\r
+ return IS_DEVICE_PATH_NODE (DevicePath, MEDIA_DEVICE_PATH, MEDIA_CDROM_DP);\r
+}\r
+\r
+EFI_STATUS\r
+BdsGetDeviceCdrom (\r
+ IN EFI_DEVICE_PATH* RemovableDevicePath,\r
+ OUT EFI_HANDLE* DeviceHandle,\r
+ OUT EFI_DEVICE_PATH** DevicePath\r
+ )\r
+{\r
+ ASSERT(0);\r
+ return EFI_UNSUPPORTED;\r
+}*/\r
+\r
+typedef BOOLEAN\r
+(*BDS_IS_REMOVABLE) (\r
+ IN EFI_DEVICE_PATH* DevicePath\r
+ );\r
+\r
+typedef EFI_STATUS\r
+(*BDS_GET_DEVICE) (\r
+ IN EFI_DEVICE_PATH* RemovableDevicePath,\r
+ OUT EFI_HANDLE* DeviceHandle,\r
+ OUT EFI_DEVICE_PATH** DevicePath\r
+ );\r
+\r
+typedef struct {\r
+ BDS_IS_REMOVABLE IsRemovable;\r
+ BDS_GET_DEVICE GetDevice;\r
+} BDS_REMOVABLE_DEVICE_SUPPORT;\r
+\r
+BDS_REMOVABLE_DEVICE_SUPPORT RemovableDeviceSupport[] = {\r
+ { BdsIsRemovableUsb, BdsGetDeviceUsb },\r
+ { BdsIsRemovableHd, BdsGetDeviceHd },\r
+ //{ BdsIsRemovableCdrom, BdsGetDeviceCdrom }\r
+};\r
+\r
+STATIC\r
+BOOLEAN\r
+IsRemovableDevice (\r
+ IN EFI_DEVICE_PATH* DevicePath\r
+ )\r
+{\r
+ UINTN Index;\r
+ EFI_DEVICE_PATH* TmpDevicePath;\r
+\r
+ TmpDevicePath = DevicePath;\r
+ while (!IsDevicePathEnd (TmpDevicePath)) {\r
+ for (Index = 0; Index < sizeof (RemovableDeviceSupport) / sizeof (BDS_REMOVABLE_DEVICE_SUPPORT); Index++) {\r
+ if (RemovableDeviceSupport[Index].IsRemovable (TmpDevicePath)) {\r
+ return TRUE;\r
+ }\r
+ }\r
+ TmpDevicePath = NextDevicePathNode (TmpDevicePath);\r
+ }\r
+\r
+ return FALSE;\r
+}\r
+\r
+STATIC\r
+EFI_STATUS\r
+TryRemovableDevice (\r
+ IN EFI_DEVICE_PATH* DevicePath,\r
+ OUT EFI_HANDLE* DeviceHandle,\r
+ OUT EFI_DEVICE_PATH** NewDevicePath\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ UINTN Index;\r
+ EFI_DEVICE_PATH* TmpDevicePath;\r
+ BDS_REMOVABLE_DEVICE_SUPPORT* RemovableDevice;\r
+ EFI_DEVICE_PATH* RemovableDevicePath;\r
+ BOOLEAN RemovableFound;\r
+\r
+ RemovableDevice = NULL;\r
+ RemovableDevicePath = NULL;\r
+ RemovableFound = FALSE;\r
+ TmpDevicePath = DevicePath;\r
+\r
+ while (!IsDevicePathEnd (TmpDevicePath) && !RemovableFound) {\r
+ for (Index = 0; Index < sizeof (RemovableDeviceSupport) / sizeof (BDS_REMOVABLE_DEVICE_SUPPORT); Index++) {\r
+ RemovableDevice = &RemovableDeviceSupport[Index];\r
+ if (RemovableDevice->IsRemovable (TmpDevicePath)) {\r
+ RemovableDevicePath = TmpDevicePath;\r
+ RemovableFound = TRUE;\r
+ break;\r
+ }\r
+ }\r
+ TmpDevicePath = NextDevicePathNode (TmpDevicePath);\r
+ }\r
+\r
+ if (!RemovableFound) {\r
+ return EFI_NOT_FOUND;\r
+ }\r
+\r
+ // Search into the current started drivers\r
+ Status = RemovableDevice->GetDevice (RemovableDevicePath, DeviceHandle, NewDevicePath);\r
+ if (Status == EFI_NOT_FOUND) {\r
+ // Connect all the drivers\r
+ BdsConnectAllDrivers ();\r
+\r
+ // Search again into all the drivers\r
+ Status = RemovableDevice->GetDevice (RemovableDevicePath, DeviceHandle, NewDevicePath);\r
+ }\r
+\r
+ return Status;\r
+}\r
+\r
+STATIC\r
+EFI_STATUS\r
+BdsConnectAndUpdateDevicePath (\r
+ IN OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath,\r
+ OUT EFI_HANDLE *Handle,\r
+ OUT EFI_DEVICE_PATH_PROTOCOL **RemainingDevicePath\r
+ )\r
+{\r
+ EFI_DEVICE_PATH* Remaining;\r
+ EFI_DEVICE_PATH* NewDevicePath;\r
+ EFI_STATUS Status;\r
+ EFI_HANDLE PreviousHandle;\r
+\r
+ if ((DevicePath == NULL) || (*DevicePath == NULL) || (Handle == NULL)) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ PreviousHandle = NULL;\r
+ do {\r
+ Remaining = *DevicePath;\r
+\r
+ // The LocateDevicePath() function locates all devices on DevicePath that support Protocol and returns\r
+ // the handle to the device that is closest to DevicePath. On output, the device path pointer is modified\r
+ // to point to the remaining part of the device path\r
+ Status = gBS->LocateDevicePath (&gEfiDevicePathProtocolGuid, &Remaining, Handle);\r
+\r
+ if (!EFI_ERROR (Status)) {\r
+ if (*Handle == PreviousHandle) {\r
+ //\r
+ // If no forward progress is made try invoking the Dispatcher.\r
+ // A new FV may have been added to the system and new drivers\r
+ // may now be found.\r
+ // Status == EFI_SUCCESS means a driver was dispatched\r
+ // Status == EFI_NOT_FOUND means no new drivers were dispatched\r
+ //\r
+ Status = gDS->Dispatch ();\r
+ }\r
+\r
+ if (!EFI_ERROR (Status)) {\r
+ PreviousHandle = *Handle;\r
+\r
+ // Recursive = FALSE: We do not want to start the whole device tree\r
+ Status = gBS->ConnectController (*Handle, NULL, Remaining, FALSE);\r
+ }\r
+ }\r
+ } while (!EFI_ERROR (Status) && !IsDevicePathEnd (Remaining));\r
+\r
+ if (!EFI_ERROR (Status)) {\r
+ // Now, we have got the whole Device Path connected, call again ConnectController to ensure all the supported Driver\r
+ // Binding Protocol are connected (such as DiskIo and SimpleFileSystem)\r
+ Remaining = *DevicePath;\r
+ Status = gBS->LocateDevicePath (&gEfiDevicePathProtocolGuid, &Remaining, Handle);\r
+ if (!EFI_ERROR (Status)) {\r
+ Status = gBS->ConnectController (*Handle, NULL, Remaining, FALSE);\r
+ if (EFI_ERROR (Status)) {\r
+ // If the last node is a Memory Map Device Path just return EFI_SUCCESS.\r
+ if ((Remaining->Type == HARDWARE_DEVICE_PATH) && (Remaining->SubType == HW_MEMMAP_DP)) {\r
+ Status = EFI_SUCCESS;\r
+ }\r
+ }\r
+ }\r
+ } else if (!IsDevicePathEnd (Remaining) && !IsRemovableDevice (Remaining)) {\r
+\r
+ /*// If the remaining Device Path is a FilePath or MemoryMap then we consider the Device Path has been loaded correctly\r
+ if ((Remaining->Type == MEDIA_DEVICE_PATH) && (Remaining->SubType == MEDIA_FILEPATH_DP)) {\r
+ Status = EFI_SUCCESS;\r
+ } else if ((Remaining->Type == HARDWARE_DEVICE_PATH) && (Remaining->SubType == HW_MEMMAP_DP)) {\r
+ Status = EFI_SUCCESS;\r
+ }*/\r
+\r
+ //TODO: Should we just return success and leave the caller decide if it is the expected RemainingPath\r
+ Status = EFI_SUCCESS;\r
+ } else {\r
+ Status = TryRemovableDevice (*DevicePath, Handle, &NewDevicePath);\r
+ if (!EFI_ERROR (Status)) {\r
+ Status = BdsConnectAndUpdateDevicePath (&NewDevicePath, Handle, RemainingDevicePath);\r
+ *DevicePath = NewDevicePath;\r
+ return Status;\r
+ }\r
+ }\r
+\r
+ if (RemainingDevicePath) {\r
+ *RemainingDevicePath = Remaining;\r
+ }\r
+\r
+ return Status;\r
+}\r
+\r
+/**\r
+ Connect a Device Path and return the handle of the driver that support this DevicePath\r
+\r
+ @param DevicePath Device Path of the File to connect\r
+ @param Handle Handle of the driver that support this DevicePath\r
+ @param RemainingDevicePath Remaining DevicePath nodes that do not match the driver DevicePath\r
+\r
+ @retval EFI_SUCCESS A driver that matches the Device Path has been found\r
+ @retval EFI_NOT_FOUND No handles match the search.\r
+ @retval EFI_INVALID_PARAMETER DevicePath or Handle is NULL\r
+\r
+**/\r
+EFI_STATUS\r
+BdsConnectDevicePath (\r
+ IN EFI_DEVICE_PATH_PROTOCOL* DevicePath,\r
+ OUT EFI_HANDLE *Handle,\r
+ OUT EFI_DEVICE_PATH_PROTOCOL **RemainingDevicePath\r
+ )\r
+{\r
+ return BdsConnectAndUpdateDevicePath (&DevicePath, Handle, RemainingDevicePath);\r
+}\r
+\r
+BOOLEAN\r
+BdsFileSystemSupport (\r
+ IN EFI_DEVICE_PATH *DevicePath,\r
+ IN EFI_HANDLE Handle,\r
+ IN EFI_DEVICE_PATH *RemainingDevicePath\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_SIMPLE_FILE_SYSTEM_PROTOCOL *FsProtocol;\r
+\r
+ Status = gBS->HandleProtocol (Handle, &gEfiSimpleFileSystemProtocolGuid, (VOID **)&FsProtocol);\r
+\r
+ return (!EFI_ERROR (Status) && IS_DEVICE_PATH_NODE (RemainingDevicePath, MEDIA_DEVICE_PATH, MEDIA_FILEPATH_DP));\r
+}\r
+\r
+EFI_STATUS\r
+BdsFileSystemLoadImage (\r
+ IN OUT EFI_DEVICE_PATH **DevicePath,\r
+ IN EFI_HANDLE Handle,\r
+ IN EFI_DEVICE_PATH *RemainingDevicePath,\r
+ IN EFI_ALLOCATE_TYPE Type,\r
+ IN OUT EFI_PHYSICAL_ADDRESS *Image,\r
+ OUT UINTN *ImageSize\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ FILEPATH_DEVICE_PATH *FilePathDevicePath;\r
+ EFI_SIMPLE_FILE_SYSTEM_PROTOCOL *FsProtocol;\r
+ EFI_FILE_PROTOCOL *Fs;\r
+ EFI_FILE_INFO *FileInfo;\r
+ EFI_FILE_PROTOCOL *File;\r
+ UINTN Size;\r
+\r
+ ASSERT (IS_DEVICE_PATH_NODE (RemainingDevicePath, MEDIA_DEVICE_PATH, MEDIA_FILEPATH_DP));\r
+\r
+ FilePathDevicePath = (FILEPATH_DEVICE_PATH*)RemainingDevicePath;\r
+\r
+ Status = gBS->OpenProtocol (\r
+ Handle,\r
+ &gEfiSimpleFileSystemProtocolGuid,\r
+ (VOID**)&FsProtocol,\r
+ gImageHandle,\r
+ Handle,\r
+ EFI_OPEN_PROTOCOL_BY_DRIVER\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
+ // Try to Open the volume and get root directory\r
+ Status = FsProtocol->OpenVolume (FsProtocol, &Fs);\r
+ if (EFI_ERROR (Status)) {\r
+ goto CLOSE_PROTOCOL;\r
+ }\r
+\r
+ Status = Fs->Open (Fs, &File, FilePathDevicePath->PathName, EFI_FILE_MODE_READ, 0);\r
+ if (EFI_ERROR (Status)) {\r
+ goto CLOSE_PROTOCOL;\r
+ }\r
+\r
+ Size = 0;\r
+ File->GetInfo (File, &gEfiFileInfoGuid, &Size, NULL);\r
+ FileInfo = AllocatePool (Size);\r
+ Status = File->GetInfo (File, &gEfiFileInfoGuid, &Size, FileInfo);\r
+ if (EFI_ERROR (Status)) {\r
+ goto CLOSE_FILE;\r
+ }\r
+\r
+ // Get the file size\r
+ Size = FileInfo->FileSize;\r
+ if (ImageSize) {\r
+ *ImageSize = Size;\r
+ }\r
+ FreePool (FileInfo);\r
+\r
+ Status = gBS->AllocatePages (Type, EfiBootServicesCode, EFI_SIZE_TO_PAGES(Size), Image);\r
+ // Try to allocate in any pages if failed to allocate memory at the defined location\r
+ if ((Status == EFI_OUT_OF_RESOURCES) && (Type != AllocateAnyPages)) {\r
+ Status = gBS->AllocatePages (AllocateAnyPages, EfiBootServicesCode, EFI_SIZE_TO_PAGES(Size), Image);\r
+ }\r
+ if (!EFI_ERROR (Status)) {\r
+ Status = File->Read (File, &Size, (VOID*)(UINTN)(*Image));\r
+ }\r
+\r
+CLOSE_FILE:\r
+ File->Close (File);\r
+\r
+CLOSE_PROTOCOL:\r
+ gBS->CloseProtocol (\r
+ Handle,\r
+ &gEfiSimpleFileSystemProtocolGuid,\r
+ gImageHandle,\r
+ Handle);\r
+\r
+ return Status;\r
+}\r
+\r
+BOOLEAN\r
+BdsMemoryMapSupport (\r
+ IN EFI_DEVICE_PATH *DevicePath,\r
+ IN EFI_HANDLE Handle,\r
+ IN EFI_DEVICE_PATH *RemainingDevicePath\r
+ )\r
+{\r
+ return IS_DEVICE_PATH_NODE (DevicePath, HARDWARE_DEVICE_PATH, HW_MEMMAP_DP) ||\r
+ IS_DEVICE_PATH_NODE (RemainingDevicePath, HARDWARE_DEVICE_PATH, HW_MEMMAP_DP);\r
+}\r
+\r
+EFI_STATUS\r
+BdsMemoryMapLoadImage (\r
+ IN OUT EFI_DEVICE_PATH **DevicePath,\r
+ IN EFI_HANDLE Handle,\r
+ IN EFI_DEVICE_PATH *RemainingDevicePath,\r
+ IN EFI_ALLOCATE_TYPE Type,\r
+ IN OUT EFI_PHYSICAL_ADDRESS* Image,\r
+ OUT UINTN *ImageSize\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ MEMMAP_DEVICE_PATH* MemMapPathDevicePath;\r
+ UINTN Size;\r
+\r
+ if (IS_DEVICE_PATH_NODE (RemainingDevicePath, HARDWARE_DEVICE_PATH, HW_MEMMAP_DP)) {\r
+ MemMapPathDevicePath = (MEMMAP_DEVICE_PATH*)RemainingDevicePath;\r
+ } else {\r
+ ASSERT (IS_DEVICE_PATH_NODE (*DevicePath, HARDWARE_DEVICE_PATH, HW_MEMMAP_DP));\r
+ MemMapPathDevicePath = (MEMMAP_DEVICE_PATH*)*DevicePath;\r
+ }\r
+\r
+ Size = MemMapPathDevicePath->EndingAddress - MemMapPathDevicePath->StartingAddress;\r
+ if (Size == 0) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ Status = gBS->AllocatePages (Type, EfiBootServicesCode, EFI_SIZE_TO_PAGES(Size), Image);\r
+ // Try to allocate in any pages if failed to allocate memory at the defined location\r
+ if ((Status == EFI_OUT_OF_RESOURCES) && (Type != AllocateAnyPages)) {\r
+ Status = gBS->AllocatePages (AllocateAnyPages, EfiBootServicesCode, EFI_SIZE_TO_PAGES(Size), Image);\r
+ }\r
+ if (!EFI_ERROR (Status)) {\r
+ CopyMem ((VOID*)(UINTN)(*Image), (CONST VOID*)(UINTN)MemMapPathDevicePath->StartingAddress, Size);\r
+\r
+ if (ImageSize != NULL) {\r
+ *ImageSize = Size;\r
+ }\r
+ }\r
+\r
+ return Status;\r
+}\r
+\r
+BOOLEAN\r
+BdsFirmwareVolumeSupport (\r
+ IN EFI_DEVICE_PATH *DevicePath,\r
+ IN EFI_HANDLE Handle,\r
+ IN EFI_DEVICE_PATH *RemainingDevicePath\r
+ )\r
+{\r
+ return IS_DEVICE_PATH_NODE (RemainingDevicePath, MEDIA_DEVICE_PATH, MEDIA_PIWG_FW_FILE_DP);\r
+}\r
+\r
+EFI_STATUS\r
+BdsFirmwareVolumeLoadImage (\r
+ IN OUT EFI_DEVICE_PATH **DevicePath,\r
+ IN EFI_HANDLE Handle,\r
+ IN EFI_DEVICE_PATH *RemainingDevicePath,\r
+ IN EFI_ALLOCATE_TYPE Type,\r
+ IN OUT EFI_PHYSICAL_ADDRESS* Image,\r
+ OUT UINTN *ImageSize\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_FIRMWARE_VOLUME2_PROTOCOL *FwVol;\r
+ EFI_GUID *FvNameGuid;\r
+ EFI_SECTION_TYPE SectionType;\r
+ EFI_FV_FILETYPE FvType;\r
+ EFI_FV_FILE_ATTRIBUTES Attrib;\r
+ UINT32 AuthenticationStatus;\r
+ VOID* ImageBuffer;\r
+\r
+ ASSERT (IS_DEVICE_PATH_NODE (RemainingDevicePath, MEDIA_DEVICE_PATH, MEDIA_PIWG_FW_FILE_DP));\r
+\r
+ Status = gBS->HandleProtocol (Handle, &gEfiFirmwareVolume2ProtocolGuid, (VOID **)&FwVol);\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
+ FvNameGuid = EfiGetNameGuidFromFwVolDevicePathNode ((CONST MEDIA_FW_VOL_FILEPATH_DEVICE_PATH *)RemainingDevicePath);\r
+ if (FvNameGuid == NULL) {\r
+ Status = EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ SectionType = EFI_SECTION_PE32;\r
+ AuthenticationStatus = 0;\r
+ //Note: ReadSection at the opposite of ReadFile does not allow to pass ImageBuffer == NULL to get the size of the file.\r
+ ImageBuffer = NULL;\r
+ Status = FwVol->ReadSection (\r
+ FwVol,\r
+ FvNameGuid,\r
+ SectionType,\r
+ 0,\r
+ &ImageBuffer,\r
+ ImageSize,\r
+ &AuthenticationStatus\r
+ );\r
+ if (!EFI_ERROR (Status)) {\r
+#if 0\r
+ // In case the buffer has some address requirements, we must copy the buffer to a buffer following the requirements\r
+ if (Type != AllocateAnyPages) {\r
+ Status = gBS->AllocatePages (Type, EfiBootServicesCode, EFI_SIZE_TO_PAGES(*ImageSize),Image);\r
+ if (!EFI_ERROR (Status)) {\r
+ CopyMem ((VOID*)(UINTN)(*Image), ImageBuffer, *ImageSize);\r
+ FreePool (ImageBuffer);\r
+ }\r
+ }\r
+#else\r
+ // We must copy the buffer into a page allocations. Otherwise, the caller could call gBS->FreePages() on the pool allocation\r
+ Status = gBS->AllocatePages (Type, EfiBootServicesCode, EFI_SIZE_TO_PAGES(*ImageSize), Image);\r
+ // Try to allocate in any pages if failed to allocate memory at the defined location\r
+ if ((Status == EFI_OUT_OF_RESOURCES) && (Type != AllocateAnyPages)) {\r
+ Status = gBS->AllocatePages (AllocateAnyPages, EfiBootServicesCode, EFI_SIZE_TO_PAGES(*ImageSize), Image);\r
+ }\r
+ if (!EFI_ERROR (Status)) {\r
+ CopyMem ((VOID*)(UINTN)(*Image), ImageBuffer, *ImageSize);\r
+ FreePool (ImageBuffer);\r
+ }\r
+#endif\r
+ } else {\r
+ // Try a raw file, since a PE32 SECTION does not exist\r
+ Status = FwVol->ReadFile (\r
+ FwVol,\r
+ FvNameGuid,\r
+ NULL,\r
+ ImageSize,\r
+ &FvType,\r
+ &Attrib,\r
+ &AuthenticationStatus\r
+ );\r
+ if (!EFI_ERROR (Status)) {\r
+ Status = gBS->AllocatePages (Type, EfiBootServicesCode, EFI_SIZE_TO_PAGES(*ImageSize), Image);\r
+ // Try to allocate in any pages if failed to allocate memory at the defined location\r
+ if ((Status == EFI_OUT_OF_RESOURCES) && (Type != AllocateAnyPages)) {\r
+ Status = gBS->AllocatePages (AllocateAnyPages, EfiBootServicesCode, EFI_SIZE_TO_PAGES(*ImageSize), Image);\r
+ }\r
+ if (!EFI_ERROR (Status)) {\r
+ Status = FwVol->ReadFile (\r
+ FwVol,\r
+ FvNameGuid,\r
+ (VOID**)Image,\r
+ ImageSize,\r
+ &FvType,\r
+ &Attrib,\r
+ &AuthenticationStatus\r
+ );\r
+ }\r
+ }\r
+ }\r
+ return Status;\r
+}\r
+\r
+BOOLEAN\r
+BdsPxeSupport (\r
+ IN EFI_DEVICE_PATH* DevicePath,\r
+ IN EFI_HANDLE Handle,\r
+ IN EFI_DEVICE_PATH* RemainingDevicePath\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_PXE_BASE_CODE_PROTOCOL* PxeBcProtocol;\r
+\r
+ if (!IsDevicePathEnd (RemainingDevicePath)) {\r
+ return FALSE;\r
+ }\r
+\r
+ Status = gBS->HandleProtocol (Handle, &gEfiPxeBaseCodeProtocolGuid, (VOID **)&PxeBcProtocol);\r
+ if (EFI_ERROR (Status)) {\r
+ return FALSE;\r
+ } else {\r
+ return TRUE;\r
+ }\r
+}\r
+\r
+EFI_STATUS\r
+BdsPxeLoadImage (\r
+ IN OUT EFI_DEVICE_PATH **DevicePath,\r
+ IN EFI_HANDLE Handle,\r
+ IN EFI_DEVICE_PATH *RemainingDevicePath,\r
+ IN EFI_ALLOCATE_TYPE Type,\r
+ IN OUT EFI_PHYSICAL_ADDRESS* Image,\r
+ OUT UINTN *ImageSize\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_LOAD_FILE_PROTOCOL *LoadFileProtocol;\r
+ UINTN BufferSize;\r
+ EFI_PXE_BASE_CODE_PROTOCOL *Pxe;\r
+\r
+ // Get Load File Protocol attached to the PXE protocol\r
+ Status = gBS->HandleProtocol (Handle, &gEfiLoadFileProtocolGuid, (VOID **)&LoadFileProtocol);\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
+ Status = LoadFileProtocol->LoadFile (LoadFileProtocol, RemainingDevicePath, TRUE, &BufferSize, NULL);\r
+ if (Status == EFI_BUFFER_TOO_SMALL) {\r
+ Status = gBS->AllocatePages (Type, EfiBootServicesCode, EFI_SIZE_TO_PAGES(BufferSize), Image);\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
+ Status = LoadFileProtocol->LoadFile (LoadFileProtocol, RemainingDevicePath, TRUE, &BufferSize, (VOID*)(UINTN)(*Image));\r
+ if (!EFI_ERROR (Status) && (ImageSize != NULL)) {\r
+ *ImageSize = BufferSize;\r
+ }\r
+ }\r
+\r
+ if (Status == EFI_ALREADY_STARTED) {\r
+ Status = gBS->LocateProtocol (&gEfiPxeBaseCodeProtocolGuid, NULL, (VOID **)&Pxe);\r
+ if (!EFI_ERROR(Status)) {\r
+ // If PXE is already started, we stop it\r
+ Pxe->Stop (Pxe);\r
+ // And we try again\r
+ return BdsPxeLoadImage (DevicePath, Handle, RemainingDevicePath, Type, Image, ImageSize);\r
+ }\r
+ }\r
+ return Status;\r
+}\r
+\r
+BOOLEAN\r
+BdsTftpSupport (\r
+ IN EFI_DEVICE_PATH *DevicePath,\r
+ IN EFI_HANDLE Handle,\r
+ IN EFI_DEVICE_PATH *RemainingDevicePath\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_DEVICE_PATH *NextDevicePath;\r
+ VOID *Interface;\r
+\r
+ // Validate the Remaining Device Path\r
+ if (IsDevicePathEnd (RemainingDevicePath)) {\r
+ return FALSE;\r
+ }\r
+ if (!IS_DEVICE_PATH_NODE (RemainingDevicePath, MESSAGING_DEVICE_PATH, MSG_IPv4_DP) &&\r
+ !IS_DEVICE_PATH_NODE (RemainingDevicePath, MESSAGING_DEVICE_PATH, MSG_IPv6_DP)) {\r
+ return FALSE;\r
+ }\r
+ NextDevicePath = NextDevicePathNode (RemainingDevicePath);\r
+ if (IsDevicePathEnd (NextDevicePath)) {\r
+ return FALSE;\r
+ }\r
+ if (!IS_DEVICE_PATH_NODE (NextDevicePath, MEDIA_DEVICE_PATH, MEDIA_FILEPATH_DP)) {\r
+ return FALSE;\r
+ }\r
+\r
+ Status = gBS->HandleProtocol (\r
+ Handle, &gEfiDevicePathProtocolGuid,\r
+ &Interface\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ return FALSE;\r
+ }\r
+\r
+ //\r
+ // Check that the controller (identified by its handle "Handle") supports the\r
+ // MTFTPv4 Service Binding Protocol. If it does, it means that it supports the\r
+ // EFI MTFTPv4 Protocol needed to download the image through TFTP.\r
+ //\r
+ Status = gBS->HandleProtocol (\r
+ Handle, &gEfiMtftp4ServiceBindingProtocolGuid,\r
+ &Interface\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ return FALSE;\r
+ }\r
+\r
+ return TRUE;\r
+}\r
+\r
+/**\r
+ Worker function that get the size in numbers of bytes of a file from a TFTP\r
+ server before to download the file.\r
+\r
+ @param[in] Mtftp4 MTFTP4 protocol interface\r
+ @param[in] FilePath Path of the file, Ascii encoded\r
+ @param[out] FileSize Address where to store the file size in number of\r
+ bytes.\r
+\r
+ @retval EFI_SUCCESS The size of the file was returned.\r
+ @retval !EFI_SUCCESS The size of the file was not returned.\r
+\r
+**/\r
+STATIC\r
+EFI_STATUS\r
+Mtftp4GetFileSize (\r
+ IN EFI_MTFTP4_PROTOCOL *Mtftp4,\r
+ IN CHAR8 *FilePath,\r
+ OUT UINT64 *FileSize\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_MTFTP4_OPTION ReqOpt[1];\r
+ EFI_MTFTP4_PACKET *Packet;\r
+ UINT32 PktLen;\r
+ EFI_MTFTP4_OPTION *TableOfOptions;\r
+ EFI_MTFTP4_OPTION *Option;\r
+ UINT32 OptCnt;\r
+ UINT8 OptBuf[128];\r
+\r
+ ReqOpt[0].OptionStr = (UINT8*)"tsize";\r
+ OptBuf[0] = '0';\r
+ OptBuf[1] = 0;\r
+ ReqOpt[0].ValueStr = OptBuf;\r
+\r
+ Status = Mtftp4->GetInfo (\r
+ Mtftp4,\r
+ NULL,\r
+ (UINT8*)FilePath,\r
+ NULL,\r
+ 1,\r
+ ReqOpt,\r
+ &PktLen,\r
+ &Packet\r
+ );\r
+\r
+ if (EFI_ERROR (Status)) {\r
+ goto Error;\r
+ }\r
+\r
+ Status = Mtftp4->ParseOptions (\r
+ Mtftp4,\r
+ PktLen,\r
+ Packet,\r
+ (UINT32 *) &OptCnt,\r
+ &TableOfOptions\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ goto Error;\r
+ }\r
+\r
+ Option = TableOfOptions;\r
+ while (OptCnt != 0) {\r
+ if (AsciiStrnCmp ((CHAR8 *)Option->OptionStr, "tsize", 5) == 0) {\r
+ *FileSize = AsciiStrDecimalToUint64 ((CHAR8 *)Option->ValueStr);\r
+ break;\r
+ }\r
+ OptCnt--;\r
+ Option++;\r
+ }\r
+ FreePool (TableOfOptions);\r
+\r
+ if (OptCnt == 0) {\r
+ Status = EFI_UNSUPPORTED;\r
+ }\r
+\r
+Error :\r
+\r
+ return Status;\r
+}\r
+\r
+/**\r
+ Update the progress of a file download\r
+ This procedure is called each time a new TFTP packet is received.\r
+\r
+ @param[in] This MTFTP4 protocol interface\r
+ @param[in] Token Parameters for the download of the file\r
+ @param[in] PacketLen Length of the packet\r
+ @param[in] Packet Address of the packet\r
+\r
+ @retval EFI_SUCCESS All packets are accepted.\r
+\r
+**/\r
+STATIC\r
+EFI_STATUS\r
+Mtftp4CheckPacket (\r
+ IN EFI_MTFTP4_PROTOCOL *This,\r
+ IN EFI_MTFTP4_TOKEN *Token,\r
+ IN UINT16 PacketLen,\r
+ IN EFI_MTFTP4_PACKET *Packet\r
+ )\r
+{\r
+ BDS_TFTP_CONTEXT *Context;\r
+ CHAR16 Progress[TFTP_PROGRESS_MESSAGE_SIZE];\r
+ UINT64 NbOfKb;\r
+ UINTN Index;\r
+ UINTN LastStep;\r
+ UINTN Step;\r
+ UINT64 LastNbOf50Kb;\r
+ UINT64 NbOf50Kb;\r
+\r
+ if ((NTOHS (Packet->OpCode)) == EFI_MTFTP4_OPCODE_DATA) {\r
+ Context = (BDS_TFTP_CONTEXT*)Token->Context;\r
+\r
+ if (Context->DownloadedNbOfBytes == 0) {\r
+ if (Context->FileSize > 0) {\r
+ Print (L"%s 0 Kb", mTftpProgressFrame);\r
+ } else {\r
+ Print (L" 0 Kb");\r
+ }\r
+ }\r
+\r
+ //\r
+ // The data is the packet are prepended with two UINT16 :\r
+ // . OpCode = EFI_MTFTP4_OPCODE_DATA\r
+ // . Block = the number of this block of data\r
+ //\r
+ Context->DownloadedNbOfBytes += PacketLen - sizeof (Packet->OpCode) - sizeof (Packet->Data.Block);\r
+ NbOfKb = Context->DownloadedNbOfBytes / 1024;\r
+\r
+ Progress[0] = L'\0';\r
+ if (Context->FileSize > 0) {\r
+ LastStep = (Context->LastReportedNbOfBytes * TFTP_PROGRESS_SLIDER_STEPS) / Context->FileSize;\r
+ Step = (Context->DownloadedNbOfBytes * TFTP_PROGRESS_SLIDER_STEPS) / Context->FileSize;\r
+ if (Step > LastStep) {\r
+ Print (mTftpProgressDelete);\r
+ CopyMem (Progress, mTftpProgressFrame, sizeof mTftpProgressFrame);\r
+ for (Index = 1; Index < Step; Index++) {\r
+ Progress[Index] = L'=';\r
+ }\r
+ Progress[Step] = L'>';\r
+\r
+ UnicodeSPrint (\r
+ Progress + (sizeof (mTftpProgressFrame) / sizeof (CHAR16)) - 1,\r
+ sizeof (Progress) - sizeof (mTftpProgressFrame),\r
+ L" %7d Kb",\r
+ NbOfKb\r
+ );\r
+ Context->LastReportedNbOfBytes = Context->DownloadedNbOfBytes;\r
+ }\r
+ } else {\r
+ //\r
+ // Case when we do not know the size of the final file.\r
+ // We print the updated size every 50KB of downloaded data\r
+ //\r
+ LastNbOf50Kb = Context->LastReportedNbOfBytes / (50*1024);\r
+ NbOf50Kb = Context->DownloadedNbOfBytes / (50*1024);\r
+ if (NbOf50Kb > LastNbOf50Kb) {\r
+ Print (L"\b\b\b\b\b\b\b\b\b\b");\r
+ UnicodeSPrint (Progress, sizeof (Progress), L"%7d Kb", NbOfKb);\r
+ Context->LastReportedNbOfBytes = Context->DownloadedNbOfBytes;\r
+ }\r
+ }\r
+ if (Progress[0] != L'\0') {\r
+ Print (L"%s", Progress);\r
+ }\r
+ }\r
+\r
+ return EFI_SUCCESS;\r
+}\r
+\r
+/**\r
+ Download an image from a TFTP server\r
+\r
+ @param[in] DevicePath Device path of the TFTP boot option\r
+ @param[in] ControllerHandle Handle of the network controller\r
+ @param[in] RemainingDevicePath Device path of the TFTP boot option but\r
+ the first node that identifies the network controller\r
+ @param[in] Type Type to allocate memory pages\r
+ @param[out] Image Address of the bufer where the image is stored in\r
+ case of success\r
+ @param[out] ImageSize Size in number of bytes of the i;age in case of\r
+ success\r
+\r
+ @retval EFI_SUCCESS The image was returned.\r
+ @retval !EFI_SUCCESS Something went wrong.\r
+\r
+**/\r
+EFI_STATUS\r
+BdsTftpLoadImage (\r
+ IN OUT EFI_DEVICE_PATH **DevicePath,\r
+ IN EFI_HANDLE ControllerHandle,\r
+ IN EFI_DEVICE_PATH *RemainingDevicePath,\r
+ IN EFI_ALLOCATE_TYPE Type,\r
+ IN OUT EFI_PHYSICAL_ADDRESS *Image,\r
+ OUT UINTN *ImageSize\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_HANDLE Dhcp4ChildHandle;\r
+ EFI_DHCP4_PROTOCOL *Dhcp4;\r
+ BOOLEAN Dhcp4ToStop;\r
+ EFI_HANDLE Mtftp4ChildHandle;\r
+ EFI_MTFTP4_PROTOCOL *Mtftp4;\r
+ DHCP4_OPTION ParaList;\r
+ EFI_DHCP4_PACKET_OPTION *OptionList[2];\r
+ EFI_DHCP4_CONFIG_DATA Dhcp4CfgData;\r
+ EFI_DHCP4_MODE_DATA Dhcp4Mode;\r
+ EFI_MTFTP4_CONFIG_DATA Mtftp4CfgData;\r
+ IPv4_DEVICE_PATH *IPv4DevicePathNode;\r
+ CHAR16 *PathName;\r
+ CHAR8 *AsciiFilePath;\r
+ EFI_MTFTP4_TOKEN Mtftp4Token;\r
+ UINT64 FileSize;\r
+ UINT64 TftpBufferSize;\r
+ BDS_TFTP_CONTEXT *TftpContext;\r
+ UINTN PathNameLen;\r
+\r
+ ASSERT(IS_DEVICE_PATH_NODE (RemainingDevicePath, MESSAGING_DEVICE_PATH, MSG_IPv4_DP));\r
+ IPv4DevicePathNode = (IPv4_DEVICE_PATH*)RemainingDevicePath;\r
+\r
+ Dhcp4ChildHandle = NULL;\r
+ Dhcp4 = NULL;\r
+ Dhcp4ToStop = FALSE;\r
+ Mtftp4ChildHandle = NULL;\r
+ Mtftp4 = NULL;\r
+ AsciiFilePath = NULL;\r
+ TftpContext = NULL;\r
+\r
+ if (!IPv4DevicePathNode->StaticIpAddress) {\r
+ //\r
+ // Using the DHCP4 Service Binding Protocol, create a child handle of the DHCP4 service and\r
+ // install the DHCP4 protocol on it. Then, open the DHCP protocol.\r
+ //\r
+ Status = NetLibCreateServiceChild (\r
+ ControllerHandle,\r
+ gImageHandle,\r
+ &gEfiDhcp4ServiceBindingProtocolGuid,\r
+ &Dhcp4ChildHandle\r
+ );\r
+ if (!EFI_ERROR (Status)) {\r
+ Status = gBS->OpenProtocol (\r
+ Dhcp4ChildHandle,\r
+ &gEfiDhcp4ProtocolGuid,\r
+ (VOID **) &Dhcp4,\r
+ gImageHandle,\r
+ ControllerHandle,\r
+ EFI_OPEN_PROTOCOL_BY_DRIVER\r
+ );\r
+ }\r
+ if (EFI_ERROR (Status)) {\r
+ Print (L"Unable to open DHCP4 protocol\n");\r
+ goto Error;\r
+ }\r
+ }\r
+\r
+ //\r
+ // Using the MTFTP4 Service Binding Protocol, create a child handle of the MTFTP4 service and\r
+ // install the MTFTP4 protocol on it. Then, open the MTFTP4 protocol.\r
+ //\r
+ Status = NetLibCreateServiceChild (\r
+ ControllerHandle,\r
+ gImageHandle,\r
+ &gEfiMtftp4ServiceBindingProtocolGuid,\r
+ &Mtftp4ChildHandle\r
+ );\r
+ if (!EFI_ERROR (Status)) {\r
+ Status = gBS->OpenProtocol (\r
+ Mtftp4ChildHandle,\r
+ &gEfiMtftp4ProtocolGuid,\r
+ (VOID **) &Mtftp4,\r
+ gImageHandle,\r
+ ControllerHandle,\r
+ EFI_OPEN_PROTOCOL_BY_DRIVER\r
+ );\r
+ }\r
+ if (EFI_ERROR (Status)) {\r
+ Print (L"Unable to open MTFTP4 protocol\n");\r
+ goto Error;\r
+ }\r
+\r
+ if (!IPv4DevicePathNode->StaticIpAddress) {\r
+ //\r
+ // Configure the DHCP4, all default settings. It is acceptable for the configuration to\r
+ // fail if the return code is equal to EFI_ACCESS_DENIED which means that the configuration\r
+ // has been done by another instance of the DHCP4 protocol or that the DHCP configuration\r
+ // process has been started but is not completed yet.\r
+ //\r
+ ZeroMem (&Dhcp4CfgData, sizeof (EFI_DHCP4_CONFIG_DATA));\r
+ ParaList.Head.OpCode = DHCP_TAG_PARA_LIST;\r
+ ParaList.Head.Length = 2;\r
+ ParaList.Head.Data[0] = DHCP_TAG_NETMASK;\r
+ ParaList.Route = DHCP_TAG_ROUTER;\r
+ OptionList[0] = &ParaList.Head;\r
+ Dhcp4CfgData.OptionCount = 1;\r
+ Dhcp4CfgData.OptionList = OptionList;\r
+\r
+ Status = Dhcp4->Configure (Dhcp4, &Dhcp4CfgData);\r
+ if (EFI_ERROR (Status)) {\r
+ if (Status != EFI_ACCESS_DENIED) {\r
+ Print (L"Error while configuring the DHCP4 protocol\n");\r
+ goto Error;\r
+ }\r
+ }\r
+\r
+ //\r
+ // Start the DHCP configuration. This may have already been done thus do not leave in error\r
+ // if the return code is EFI_ALREADY_STARTED.\r
+ //\r
+ Status = Dhcp4->Start (Dhcp4, NULL);\r
+ if (EFI_ERROR (Status)) {\r
+ if (Status != EFI_ALREADY_STARTED) {\r
+ Print (L"DHCP configuration failed\n");\r
+ goto Error;\r
+ }\r
+ } else {\r
+ Dhcp4ToStop = TRUE;\r
+ }\r
+\r
+ Status = Dhcp4->GetModeData (Dhcp4, &Dhcp4Mode);\r
+ if (EFI_ERROR (Status)) {\r
+ goto Error;\r
+ }\r
+\r
+ if (Dhcp4Mode.State != Dhcp4Bound) {\r
+ Status = EFI_TIMEOUT;\r
+ Print (L"DHCP configuration failed\n");\r
+ goto Error;\r
+ }\r
+ }\r
+\r
+ //\r
+ // Configure the TFTP4 protocol\r
+ //\r
+\r
+ ZeroMem (&Mtftp4CfgData, sizeof (EFI_MTFTP4_CONFIG_DATA));\r
+ Mtftp4CfgData.UseDefaultSetting = FALSE;\r
+ Mtftp4CfgData.TimeoutValue = 4;\r
+ Mtftp4CfgData.TryCount = 6;\r
+\r
+ if (IPv4DevicePathNode->StaticIpAddress) {\r
+ CopyMem (&Mtftp4CfgData.StationIp , &IPv4DevicePathNode->LocalIpAddress, sizeof (EFI_IPv4_ADDRESS));\r
+ CopyMem (&Mtftp4CfgData.SubnetMask, &IPv4DevicePathNode->SubnetMask, sizeof (EFI_IPv4_ADDRESS));\r
+ CopyMem (&Mtftp4CfgData.GatewayIp , &IPv4DevicePathNode->GatewayIpAddress, sizeof (EFI_IPv4_ADDRESS));\r
+ } else {\r
+ CopyMem (&Mtftp4CfgData.StationIp , &Dhcp4Mode.ClientAddress, sizeof (EFI_IPv4_ADDRESS));\r
+ CopyMem (&Mtftp4CfgData.SubnetMask, &Dhcp4Mode.SubnetMask , sizeof (EFI_IPv4_ADDRESS));\r
+ CopyMem (&Mtftp4CfgData.GatewayIp , &Dhcp4Mode.RouterAddress, sizeof (EFI_IPv4_ADDRESS));\r
+ }\r
+\r
+ CopyMem (&Mtftp4CfgData.ServerIp , &IPv4DevicePathNode->RemoteIpAddress, sizeof (EFI_IPv4_ADDRESS));\r
+\r
+ Status = Mtftp4->Configure (Mtftp4, &Mtftp4CfgData);\r
+ if (EFI_ERROR (Status)) {\r
+ Print (L"Error while configuring the MTFTP4 protocol\n");\r
+ goto Error;\r
+ }\r
+\r
+ // The Device Path might contain multiple FilePath nodes\r
+ PathName = ConvertDevicePathToText ((EFI_DEVICE_PATH_PROTOCOL*)(IPv4DevicePathNode + 1), FALSE, FALSE);\r
+ PathNameLen = StrLen (PathName) + 1;\r
+ AsciiFilePath = AllocatePool (PathNameLen);\r
+ UnicodeStrToAsciiStrS (PathName, AsciiFilePath, PathNameLen);\r
+\r
+ //\r
+ // Try to get the size of the file in bytes from the server. If it fails,\r
+ // start with a 8MB buffer to download the file.\r
+ //\r
+ FileSize = 0;\r
+ if (Mtftp4GetFileSize (Mtftp4, AsciiFilePath, &FileSize) == EFI_SUCCESS) {\r
+ TftpBufferSize = FileSize;\r
+ } else {\r
+ TftpBufferSize = SIZE_16MB;\r
+ }\r
+\r
+ TftpContext = AllocatePool (sizeof (BDS_TFTP_CONTEXT));\r
+ if (TftpContext == NULL) {\r
+ Status = EFI_OUT_OF_RESOURCES;\r
+ goto Error;\r
+ }\r
+ TftpContext->FileSize = FileSize;\r
+\r
+ for (; TftpBufferSize <= FixedPcdGet32 (PcdMaxTftpFileSize);\r
+ TftpBufferSize = (TftpBufferSize + SIZE_16MB) & (~(SIZE_16MB-1))) {\r
+ //\r
+ // Allocate a buffer to hold the whole file.\r
+ //\r
+ Status = gBS->AllocatePages (\r
+ Type,\r
+ EfiBootServicesCode,\r
+ EFI_SIZE_TO_PAGES (TftpBufferSize),\r
+ Image\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ Print (L"Failed to allocate space for image\n");\r
+ goto Error;\r
+ }\r
+\r
+ TftpContext->DownloadedNbOfBytes = 0;\r
+ TftpContext->LastReportedNbOfBytes = 0;\r
+\r
+ ZeroMem (&Mtftp4Token, sizeof (EFI_MTFTP4_TOKEN));\r
+ Mtftp4Token.Filename = (UINT8*)AsciiFilePath;\r
+ Mtftp4Token.BufferSize = TftpBufferSize;\r
+ Mtftp4Token.Buffer = (VOID *)(UINTN)*Image;\r
+ Mtftp4Token.CheckPacket = Mtftp4CheckPacket;\r
+ Mtftp4Token.Context = (VOID*)TftpContext;\r
+\r
+ Print (L"Downloading the file <%a> from the TFTP server\n", AsciiFilePath);\r
+ Status = Mtftp4->ReadFile (Mtftp4, &Mtftp4Token);\r
+ Print (L"\n");\r
+ if (EFI_ERROR (Status)) {\r
+ gBS->FreePages (*Image, EFI_SIZE_TO_PAGES (TftpBufferSize));\r
+ if (Status == EFI_BUFFER_TOO_SMALL) {\r
+ Print (L"Downloading failed, file larger than expected.\n");\r
+ continue;\r
+ } else {\r
+ goto Error;\r
+ }\r
+ }\r
+\r
+ *ImageSize = Mtftp4Token.BufferSize;\r
+ break;\r
+ }\r
+\r
+Error:\r
+ if (Dhcp4ChildHandle != NULL) {\r
+ if (Dhcp4 != NULL) {\r
+ if (Dhcp4ToStop) {\r
+ Dhcp4->Stop (Dhcp4);\r
+ }\r
+ gBS->CloseProtocol (\r
+ Dhcp4ChildHandle,\r
+ &gEfiDhcp4ProtocolGuid,\r
+ gImageHandle,\r
+ ControllerHandle\r
+ );\r
+ }\r
+ NetLibDestroyServiceChild (\r
+ ControllerHandle,\r
+ gImageHandle,\r
+ &gEfiDhcp4ServiceBindingProtocolGuid,\r
+ Dhcp4ChildHandle\r
+ );\r
+ }\r
+\r
+ if (Mtftp4ChildHandle != NULL) {\r
+ if (Mtftp4 != NULL) {\r
+ if (AsciiFilePath != NULL) {\r
+ FreePool (AsciiFilePath);\r
+ }\r
+ if (TftpContext != NULL) {\r
+ FreePool (TftpContext);\r
+ }\r
+ gBS->CloseProtocol (\r
+ Mtftp4ChildHandle,\r
+ &gEfiMtftp4ProtocolGuid,\r
+ gImageHandle,\r
+ ControllerHandle\r
+ );\r
+ }\r
+ NetLibDestroyServiceChild (\r
+ ControllerHandle,\r
+ gImageHandle,\r
+ &gEfiMtftp4ServiceBindingProtocolGuid,\r
+ Mtftp4ChildHandle\r
+ );\r
+ }\r
+\r
+ if (EFI_ERROR (Status)) {\r
+ *Image = 0;\r
+ Print (L"Failed to download the file - Error=%r\n", Status);\r
+ }\r
+\r
+ return Status;\r
+}\r
+\r
+BDS_FILE_LOADER FileLoaders[] = {\r
+ { BdsFileSystemSupport, BdsFileSystemLoadImage },\r
+ { BdsFirmwareVolumeSupport, BdsFirmwareVolumeLoadImage },\r
+ //{ BdsLoadFileSupport, BdsLoadFileLoadImage },\r
+ { BdsMemoryMapSupport, BdsMemoryMapLoadImage },\r
+ { BdsPxeSupport, BdsPxeLoadImage },\r
+ { BdsTftpSupport, BdsTftpLoadImage },\r
+ { NULL, NULL }\r
+};\r
+\r
+EFI_STATUS\r
+BdsLoadImageAndUpdateDevicePath (\r
+ IN OUT EFI_DEVICE_PATH **DevicePath,\r
+ IN EFI_ALLOCATE_TYPE Type,\r
+ IN OUT EFI_PHYSICAL_ADDRESS* Image,\r
+ OUT UINTN *FileSize\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_HANDLE Handle;\r
+ EFI_DEVICE_PATH *RemainingDevicePath;\r
+ BDS_FILE_LOADER* FileLoader;\r
+\r
+ Status = BdsConnectAndUpdateDevicePath (DevicePath, &Handle, &RemainingDevicePath);\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
+ FileLoader = FileLoaders;\r
+ while (FileLoader->Support != NULL) {\r
+ if (FileLoader->Support (*DevicePath, Handle, RemainingDevicePath)) {\r
+ return FileLoader->LoadImage (DevicePath, Handle, RemainingDevicePath, Type, Image, FileSize);\r
+ }\r
+ FileLoader++;\r
+ }\r
+\r
+ return EFI_UNSUPPORTED;\r
+}\r
+\r
+EFI_STATUS\r
+BdsLoadImage (\r
+ IN EFI_DEVICE_PATH *DevicePath,\r
+ IN EFI_ALLOCATE_TYPE Type,\r
+ IN OUT EFI_PHYSICAL_ADDRESS* Image,\r
+ OUT UINTN *FileSize\r
+ )\r
+{\r
+ return BdsLoadImageAndUpdateDevicePath (&DevicePath, Type, Image, FileSize);\r
+}\r
+\r
+/**\r
+ Start an EFI Application from a Device Path\r
+\r
+ @param ParentImageHandle Handle of the calling image\r
+ @param DevicePath Location of the EFI Application\r
+\r
+ @retval EFI_SUCCESS All drivers have been connected\r
+ @retval EFI_NOT_FOUND The Linux kernel Device Path has not been found\r
+ @retval EFI_OUT_OF_RESOURCES There is not enough resource memory to store the matching results.\r
+\r
+**/\r
+EFI_STATUS\r
+BdsStartEfiApplication (\r
+ IN EFI_HANDLE ParentImageHandle,\r
+ IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,\r
+ IN UINTN LoadOptionsSize,\r
+ IN VOID* LoadOptions\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_HANDLE ImageHandle;\r
+ EFI_PHYSICAL_ADDRESS BinaryBuffer;\r
+ UINTN BinarySize;\r
+ EFI_LOADED_IMAGE_PROTOCOL* LoadedImage;\r
+\r
+ // Find the nearest supported file loader\r
+ Status = BdsLoadImageAndUpdateDevicePath (&DevicePath, AllocateAnyPages, &BinaryBuffer, &BinarySize);\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
+ // Load the image from the Buffer with Boot Services function\r
+ Status = gBS->LoadImage (TRUE, ParentImageHandle, DevicePath, (VOID*)(UINTN)BinaryBuffer, BinarySize, &ImageHandle);\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
+ // Passed LoadOptions to the EFI Application\r
+ if (LoadOptionsSize != 0) {\r
+ Status = gBS->HandleProtocol (ImageHandle, &gEfiLoadedImageProtocolGuid, (VOID **) &LoadedImage);\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
+ LoadedImage->LoadOptionsSize = LoadOptionsSize;\r
+ LoadedImage->LoadOptions = LoadOptions;\r
+ }\r
+\r
+ // Before calling the image, enable the Watchdog Timer for the 5 Minute period\r
+ gBS->SetWatchdogTimer (5 * 60, 0x0000, 0x00, NULL);\r
+ // Start the image\r
+ Status = gBS->StartImage (ImageHandle, NULL, NULL);\r
+ // Clear the Watchdog Timer after the image returns\r
+ gBS->SetWatchdogTimer (0x0000, 0x0000, 0x0000, NULL);\r
+\r
+ return Status;\r
+}\r
projects / mirror_edk2.git / blobdiff