diff options
| author | tgingold <tgingold@6f19259b-4bc3-4df7-8a09-765794883524> | 2007-02-12 23:39:38 +0000 |
|---|---|---|
| committer | tgingold <tgingold@6f19259b-4bc3-4df7-8a09-765794883524> | 2007-02-12 23:39:38 +0000 |
| commit | 8033e9314810ae2e7544bd35fa30451f0a8b7d16 (patch) | |
| tree | 257aba484c1394ee5a03a538865ed3b44d388f27 /EdkModulePkg/Library/EdkGenericBdsLib/BdsBoot.c | |
| parent | 15f83a8852a33624902bf4476a20ac9e5f3adae5 (diff) | |
| download | edk2-platforms-8033e9314810ae2e7544bd35fa30451f0a8b7d16.tar.xz | |
EdkGenericBdsLib added
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2367 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'EdkModulePkg/Library/EdkGenericBdsLib/BdsBoot.c')
| -rw-r--r-- | EdkModulePkg/Library/EdkGenericBdsLib/BdsBoot.c | 1097 |
1 files changed, 1097 insertions, 0 deletions
diff --git a/EdkModulePkg/Library/EdkGenericBdsLib/BdsBoot.c b/EdkModulePkg/Library/EdkGenericBdsLib/BdsBoot.c new file mode 100644 index 0000000000..755c042706 --- /dev/null +++ b/EdkModulePkg/Library/EdkGenericBdsLib/BdsBoot.c @@ -0,0 +1,1097 @@ +/*++
+
+Copyright (c) 2006, Intel Corporation
+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.
+
+Module Name:
+
+ BdsBoot.c
+
+Abstract:
+
+ BDS Lib functions which relate with create or process the boot
+ option.
+
+--*/
+#include "Performance.h"
+
+BOOLEAN mEnumBootDevice = FALSE;
+
+EFI_STATUS
+BdsLibDoLegacyBoot (
+ IN BDS_COMMON_OPTION *Option
+ )
+/*++
+
+Routine Description:
+
+ Boot the legacy system with the boot option
+
+Arguments:
+
+ Option - The legacy boot option which have BBS device path
+
+Returns:
+
+ EFI_UNSUPPORTED - There is no legacybios protocol, do not support
+ legacy boot.
+
+ EFI_STATUS - Return the status of LegacyBios->LegacyBoot ().
+
+--*/
+{
+ EFI_STATUS Status;
+ EFI_LEGACY_BIOS_PROTOCOL *LegacyBios;
+
+ Status = gBS->LocateProtocol (&gEfiLegacyBiosProtocolGuid, NULL, + (void **)&LegacyBios);
+ if (EFI_ERROR (Status)) {
+ //
+ // If no LegacyBios protocol we do not support legacy boot
+ //
+ return EFI_UNSUPPORTED;
+ }
+ //
+ // Notes: if we seperate the int 19, then we don't need to refresh BBS
+ //
+ BdsRefreshBbsTableForBoot (Option);
+
+ //
+ // Write boot to OS performance data to a file
+ //
+ PERF_CODE (
+ WriteBootToOsPerformanceData ();
+ );
+
+
+ DEBUG ((EFI_D_INFO | EFI_D_LOAD, "Legacy Boot: %S\n", Option->Description));
+ return LegacyBios->LegacyBoot (
+ LegacyBios,
+ (BBS_BBS_DEVICE_PATH *) Option->DevicePath,
+ Option->LoadOptionsSize,
+ Option->LoadOptions
+ );
+}
+
+EFI_STATUS
+BdsLibBootViaBootOption (
+ IN BDS_COMMON_OPTION * Option,
+ IN EFI_DEVICE_PATH_PROTOCOL * DevicePath,
+ OUT UINTN *ExitDataSize,
+ OUT CHAR16 **ExitData OPTIONAL
+ )
+/*++
+
+Routine Description:
+
+ Process the boot option follow the EFI 1.1 specification and
+ special treat the legacy boot option with BBS_DEVICE_PATH.
+
+Arguments:
+
+ Option - The boot option need to be processed
+
+ DevicePath - The device path which describe where to load
+ the boot image or the legcy BBS device path
+ to boot the legacy OS
+
+ ExitDataSize - Returned directly from gBS->StartImage ()
+
+ ExitData - Returned directly from gBS->StartImage ()
+
+Returns:
+
+ EFI_SUCCESS - Status from gBS->StartImage (),
+ or BdsBootByDiskSignatureAndPartition ()
+
+ EFI_NOT_FOUND - If the Device Path is not found in the system
+
+--*/
+{
+ EFI_STATUS Status;
+ EFI_HANDLE Handle;
+ EFI_HANDLE ImageHandle;
+ EFI_DEVICE_PATH_PROTOCOL *TempDevicePath;
+ EFI_DEVICE_PATH_PROTOCOL *FilePath;
+ EFI_LOADED_IMAGE_PROTOCOL *ImageInfo;
+ EFI_ACPI_S3_SAVE_PROTOCOL *AcpiS3Save;
+ EFI_BLOCK_IO_PROTOCOL *BlkIo;
+ VOID *Buffer;
+
+ *ExitDataSize = 0;
+ *ExitData = NULL;
+
+ //
+ // Notes: put EFI64 ROM Shadow Solution
+ //
+ EFI64_SHADOW_ALL_LEGACY_ROM ();
+
+ //
+ // Notes: this code can be remove after the s3 script table
+ // hook on the event EFI_EVENT_SIGNAL_READY_TO_BOOT or
+ // EFI_EVENT_SIGNAL_LEGACY_BOOT
+ //
+ Status = gBS->LocateProtocol (&gEfiAcpiS3SaveProtocolGuid, NULL, + (VOID **)&AcpiS3Save);
+ if (!EFI_ERROR (Status)) {
+ AcpiS3Save->S3Save (AcpiS3Save, NULL);
+ }
+ //
+ // If it's Device Path that starts with a hard drive path,
+ // this routine will do the booting.
+ //
+ Status = BdsBootByDiskSignatureAndPartition (
+ Option,
+ (HARDDRIVE_DEVICE_PATH *) DevicePath,
+ Option->LoadOptionsSize,
+ Option->LoadOptions,
+ ExitDataSize,
+ ExitData
+ );
+ if (!EFI_ERROR (Status)) {
+ //
+ // If we found a disk signature and partition device path return success
+ //
+ return EFI_SUCCESS;
+ }
+
+ EfiSignalEventReadyToBoot ();
+
+ //
+ // Set Boot Current
+ //
+ gRT->SetVariable (
+ L"BootCurrent",
+ &gEfiGlobalVariableGuid,
+ EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
+ sizeof (UINT16),
+ &Option->BootCurrent
+ );
+
+ if ((DevicePathType (Option->DevicePath) == BBS_DEVICE_PATH) &&
+ (DevicePathSubType (Option->DevicePath) == BBS_BBS_DP)
+ ) {
+ //
+ // Check to see if we should legacy BOOT. If yes then do the legacy boot
+ //
+ return BdsLibDoLegacyBoot (Option);
+ }
+
+ DEBUG ((EFI_D_INFO | EFI_D_LOAD, "Booting EFI 1.1 way %S\n", Option->Description));
+
+ Status = gBS->LoadImage (
+ TRUE,
+ mBdsImageHandle,
+ DevicePath,
+ NULL,
+ 0,
+ &ImageHandle
+ );
+
+ //
+ // If we didn't find an image, we may need to load the default
+ // boot behavior for the device.
+ //
+ if (EFI_ERROR (Status)) {
+ //
+ // Find a Simple File System protocol on the device path. If the remaining
+ // device path is set to end then no Files are being specified, so try
+ // the removable media file name.
+ //
+ TempDevicePath = DevicePath;
+ Status = gBS->LocateDevicePath (
+ &gEfiSimpleFileSystemProtocolGuid,
+ &TempDevicePath,
+ &Handle
+ );
+ if (!EFI_ERROR (Status) && IsDevicePathEnd (TempDevicePath)) {
+ FilePath = FileDevicePath (Handle, EFI_REMOVABLE_MEDIA_FILE_NAME);
+ if (FilePath) {
+ //
+ // Issue a dummy read to the device to check for media change.
+ // When the removable media is changed, any Block IO read/write will
+ // cause the BlockIo protocol be reinstalled and EFI_MEDIA_CHANGED is
+ // returned. After the Block IO protocol is reinstalled, subsequent
+ // Block IO read/write will success.
+ //
+ Status = gBS->HandleProtocol (
+ Handle,
+ &gEfiBlockIoProtocolGuid,
+ (VOID **) &BlkIo
+ );
+ if (!EFI_ERROR (Status)) {
+ Buffer = AllocatePool (BlkIo->Media->BlockSize);
+ if (Buffer != NULL) {
+ BlkIo->ReadBlocks (
+ BlkIo,
+ BlkIo->Media->MediaId,
+ 0,
+ BlkIo->Media->BlockSize,
+ Buffer
+ );
+ gBS->FreePool (Buffer);
+ }
+ }
+
+ Status = gBS->LoadImage (
+ TRUE,
+ mBdsImageHandle,
+ FilePath,
+ NULL,
+ 0,
+ &ImageHandle
+ );
+ if (EFI_ERROR (Status)) {
+ //
+ // The DevicePath failed, and it's not a valid
+ // removable media device.
+ //
+ goto Done;
+ }
+ }
+ } else {
+ Status = EFI_NOT_FOUND;
+ }
+ }
+
+ if (EFI_ERROR (Status)) {
+ //
+ // It there is any error from the Boot attempt exit now.
+ //
+ goto Done;
+ }
+ //
+ // Provide the image with it's load options
+ //
+ Status = gBS->HandleProtocol (ImageHandle, &gEfiLoadedImageProtocolGuid, + (VOID **) &ImageInfo);
+ ASSERT_EFI_ERROR (Status);
+
+ if (Option->LoadOptionsSize != 0) {
+ ImageInfo->LoadOptionsSize = Option->LoadOptionsSize;
+ ImageInfo->LoadOptions = Option->LoadOptions;
+ }
+ //
+ // Before calling the image, enable the Watchdog Timer for
+ // the 5 Minute period
+ //
+ gBS->SetWatchdogTimer (5 * 60, 0x0000, 0x00, NULL);
+
+ Status = gBS->StartImage (ImageHandle, ExitDataSize, ExitData);
+ DEBUG ((EFI_D_INFO | EFI_D_LOAD, "Image Return Status = %r\n", Status));
+
+ //
+ // Clear the Watchdog Timer after the image returns
+ //
+ gBS->SetWatchdogTimer (0x0000, 0x0000, 0x0000, NULL);
+
+Done:
+ //
+ // Clear Boot Current
+ //
+ gRT->SetVariable (
+ L"BootCurrent",
+ &gEfiGlobalVariableGuid,
+ EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
+ 0,
+ &Option->BootCurrent
+ );
+
+ return Status;
+}
+
+EFI_STATUS
+BdsBootByDiskSignatureAndPartition (
+ IN BDS_COMMON_OPTION * Option,
+ IN HARDDRIVE_DEVICE_PATH * HardDriveDevicePath,
+ IN UINT32 LoadOptionsSize,
+ IN VOID *LoadOptions,
+ OUT UINTN *ExitDataSize,
+ OUT CHAR16 **ExitData OPTIONAL
+ )
+/*++
+
+Routine Description:
+
+ Check to see if a hard ware device path was passed in. If it was then search
+ all the block IO devices for the passed in hard drive device path.
+
+Arguments:
+
+ Option - The current processing boot option.
+
+ HardDriveDevicePath - EFI Device Path to boot, if it starts with a hard
+ drive device path.
+
+ LoadOptionsSize - Passed into gBS->StartImage ()
+ via the loaded image protocol.
+
+ LoadOptions - Passed into gBS->StartImage ()
+ via the loaded image protocol.
+
+ ExitDataSize - returned directly from gBS->StartImage ()
+
+ ExitData - returned directly from gBS->StartImage ()
+
+Returns:
+
+ EFI_SUCCESS - Status from gBS->StartImage (),
+ or BootByDiskSignatureAndPartition ()
+
+ EFI_NOT_FOUND - If the Device Path is not found in the system
+
+--*/
+{
+ EFI_STATUS Status;
+ UINTN BlockIoHandleCount;
+ EFI_HANDLE *BlockIoBuffer;
+ EFI_DEVICE_PATH_PROTOCOL *BlockIoDevicePath;
+ EFI_DEVICE_PATH_PROTOCOL *BlockIoHdDevicePath;
+ HARDDRIVE_DEVICE_PATH *TmpHdPath;
+ EFI_DEVICE_PATH_PROTOCOL *DevicePath;
+ EFI_DEVICE_PATH_PROTOCOL *NewDevicePath;
+ UINTN Index;
+ BOOLEAN DevicePathMatch;
+ HARDDRIVE_DEVICE_PATH *TempPath;
+
+ *ExitDataSize = 0;
+ *ExitData = NULL;
+
+ if ( !((DevicePathType (&HardDriveDevicePath->Header) == MEDIA_DEVICE_PATH) &&
+ (DevicePathSubType (&HardDriveDevicePath->Header) == MEDIA_HARDDRIVE_DP))
+ ) {
+ //
+ // If the HardDriveDevicePath does not start with a Hard Drive Device Path
+ // exit.
+ //
+ return EFI_NOT_FOUND;
+ }
+ //
+ // The boot device have already been connected
+ //
+ Status = gBS->LocateHandleBuffer (ByProtocol, &gEfiBlockIoProtocolGuid, NULL, &BlockIoHandleCount, &BlockIoBuffer);
+ if (EFI_ERROR (Status) || BlockIoHandleCount == 0) {
+ //
+ // If there was an error or there are no device handles that support
+ // the BLOCK_IO Protocol, then return.
+ //
+ return EFI_NOT_FOUND;
+ }
+ //
+ // Loop through all the device handles that support the BLOCK_IO Protocol
+ //
+ for (Index = 0; Index < BlockIoHandleCount; Index++) {
+
+ Status = gBS->HandleProtocol (BlockIoBuffer[Index], &gEfiDevicePathProtocolGuid, (VOID *) &BlockIoDevicePath);
+ if (EFI_ERROR (Status) || BlockIoDevicePath == NULL) {
+ continue;
+ }
+ //
+ // Make PreviousDevicePath == the device path node before the end node
+ //
+ DevicePath = BlockIoDevicePath;
+ BlockIoHdDevicePath = NULL;
+
+ //
+ // find HardDriver device path node
+ //
+ while (!IsDevicePathEnd (DevicePath)) {
+ if ((DevicePathType (DevicePath) == MEDIA_DEVICE_PATH) &&
+ (DevicePathSubType (DevicePath) == MEDIA_HARDDRIVE_DP)
+ ) {
+ BlockIoHdDevicePath = DevicePath;
+ break;
+ }
+
+ DevicePath = NextDevicePathNode (DevicePath);
+ }
+
+ if (BlockIoHdDevicePath == NULL) {
+ continue;
+ }
+ //
+ // See if the harddrive device path in blockio matches the orig Hard Drive Node
+ //
+ DevicePathMatch = FALSE;
+
+ TmpHdPath = (HARDDRIVE_DEVICE_PATH *) BlockIoHdDevicePath;
+ TempPath = (HARDDRIVE_DEVICE_PATH *) BdsLibUnpackDevicePath ((EFI_DEVICE_PATH_PROTOCOL *) HardDriveDevicePath);
+
+ //
+ // Only several fields will be checked. NOT whole NODE
+ //
+ if ( TmpHdPath->PartitionNumber == TempPath->PartitionNumber &&
+ TmpHdPath->MBRType == TempPath->MBRType &&
+ TmpHdPath->SignatureType == TempPath->SignatureType &&
+ CompareGuid ((EFI_GUID *) TmpHdPath->Signature, (EFI_GUID *) TempPath->Signature)) {
+ //
+ // Get the matched device path
+ //
+ DevicePathMatch = TRUE;
+ }
+ //
+ // Only do the boot, when devicepath match
+ //
+ if (DevicePathMatch) {
+ //
+ // Combine the Block IO and Hard Drive Device path together and try
+ // to boot from it.
+ //
+ DevicePath = NextDevicePathNode ((EFI_DEVICE_PATH_PROTOCOL *) HardDriveDevicePath);
+ NewDevicePath = AppendDevicePath (BlockIoDevicePath, DevicePath);
+
+ //
+ // Recursive boot with new device path
+ //
+ Status = BdsLibBootViaBootOption (Option, NewDevicePath, ExitDataSize, ExitData);
+ if (!EFI_ERROR (Status)) {
+ break;
+ }
+ }
+ }
+
+ gBS->FreePool (BlockIoBuffer);
+ return Status;
+}
+
+EFI_STATUS
+BdsLibDeleteOptionFromHandle (
+ IN EFI_HANDLE Handle
+ )
+/*++
+
+Routine Description:
+
+ Delete the boot option associated with the handle passed in
+
+Arguments:
+
+ Handle - The handle which present the device path to create boot option
+
+Returns:
+
+ EFI_SUCCESS - Delete the boot option success
+
+ EFI_NOT_FOUND - If the Device Path is not found in the system
+
+ EFI_OUT_OF_RESOURCES - Lack of memory resource
+
+ Other - Error return value from SetVariable()
+
+--*/
+{
+ UINT16 *BootOrder;
+ UINT8 *BootOptionVar;
+ UINTN BootOrderSize;
+ UINTN BootOptionSize;
+ EFI_STATUS Status;
+ UINTN Index;
+ UINT16 BootOption[BOOT_OPTION_MAX_CHAR];
+ UINTN DevicePathSize;
+ UINTN OptionDevicePathSize;
+ EFI_DEVICE_PATH_PROTOCOL *DevicePath;
+ EFI_DEVICE_PATH_PROTOCOL *OptionDevicePath;
+ UINT8 *TempPtr;
+ CHAR16 *Description;
+
+ Status = EFI_SUCCESS;
+ BootOrder = NULL;
+ BootOrderSize = 0;
+
+ BootOrder = BdsLibGetVariableAndSize (
+ L"BootOrder",
+ &gEfiGlobalVariableGuid,
+ &BootOrderSize
+ );
+ if (NULL == BootOrder) {
+ return EFI_NOT_FOUND;
+ }
+
+ DevicePath = DevicePathFromHandle (Handle);
+ if (DevicePath == NULL) {
+ return EFI_NOT_FOUND;
+ }
+ DevicePathSize = GetDevicePathSize (DevicePath);
+
+ Index = 0;
+ while (Index < BootOrderSize / sizeof (UINT16)) {
+ UnicodeSPrint (BootOption, sizeof (BootOption), L"Boot%04x", BootOrder[Index]);
+ BootOptionVar = BdsLibGetVariableAndSize (
+ BootOption,
+ &gEfiGlobalVariableGuid,
+ &BootOptionSize
+ );
+ if (NULL == BootOptionVar) {
+ gBS->FreePool (BootOrder);
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ TempPtr = BootOptionVar;
+ TempPtr += sizeof (UINT32) + sizeof (UINT16);
+ Description = (CHAR16 *) TempPtr;
+ TempPtr += StrSize ((CHAR16 *) TempPtr);
+ OptionDevicePath = (EFI_DEVICE_PATH_PROTOCOL *) TempPtr;
+ OptionDevicePathSize = GetDevicePathSize (OptionDevicePath);
+
+ //
+ // Check whether the device path match
+ //
+ if ((OptionDevicePathSize == DevicePathSize) &&
+ (CompareMem (DevicePath, OptionDevicePath, DevicePathSize) == 0)) {
+ BdsDeleteBootOption (BootOrder[Index], BootOrder, &BootOrderSize);
+ gBS->FreePool (BootOptionVar);
+ break;
+ }
+
+ gBS->FreePool (BootOptionVar);
+ Index++;
+ }
+
+ Status = gRT->SetVariable (
+ L"BootOrder",
+ &gEfiGlobalVariableGuid,
+ EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE,
+ BootOrderSize,
+ BootOrder
+ );
+
+ gBS->FreePool (BootOrder);
+
+ return Status;
+}
+
+EFI_STATUS
+BdsDeleteAllInvalidEfiBootOption (
+ VOID
+ )
+/*++
+
+Routine Description:
+
+ Delete all invalid EFI boot options. The probable invalid boot option could
+ be Removable media or Network boot device.
+
+Arguments:
+
+ VOID
+
+Returns:
+
+ EFI_SUCCESS - Delete all invalid boot option success
+
+ EFI_NOT_FOUND - Variable "BootOrder" is not found
+
+ EFI_OUT_OF_RESOURCES - Lack of memory resource
+
+ Other - Error return value from SetVariable()
+
+--*/
+{
+ UINT16 *BootOrder;
+ UINT8 *BootOptionVar;
+ UINTN BootOrderSize;
+ UINTN BootOptionSize;
+ EFI_STATUS Status;
+ UINTN Index;
+ UINTN Index2;
+ UINT16 BootOption[BOOT_OPTION_MAX_CHAR];
+ UINTN OptionDevicePathSize;
+ EFI_DEVICE_PATH_PROTOCOL *TempDevicePath;
+ EFI_DEVICE_PATH_PROTOCOL *LastDeviceNode;
+ EFI_DEVICE_PATH_PROTOCOL *OptionDevicePath;
+ UINT8 *TempPtr;
+ CHAR16 *Description;
+ EFI_HANDLE Handle;
+ BOOLEAN NeedDelete;
+
+ Status = EFI_SUCCESS;
+ BootOrder = NULL;
+ BootOrderSize = 0;
+
+ BootOrder = BdsLibGetVariableAndSize (
+ L"BootOrder",
+ &gEfiGlobalVariableGuid,
+ &BootOrderSize
+ );
+ if (NULL == BootOrder) {
+ return EFI_NOT_FOUND;
+ }
+
+ Index = 0;
+ while (Index < BootOrderSize / sizeof (UINT16)) {
+ UnicodeSPrint (BootOption, sizeof (BootOption), L"Boot%04x", BootOrder[Index]);
+ BootOptionVar = BdsLibGetVariableAndSize (
+ BootOption,
+ &gEfiGlobalVariableGuid,
+ &BootOptionSize
+ );
+ if (NULL == BootOptionVar) {
+ gBS->FreePool (BootOrder);
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ TempPtr = BootOptionVar;
+ TempPtr += sizeof (UINT32) + sizeof (UINT16);
+ Description = (CHAR16 *) TempPtr;
+ TempPtr += StrSize ((CHAR16 *) TempPtr);
+ OptionDevicePath = (EFI_DEVICE_PATH_PROTOCOL *) TempPtr;
+ OptionDevicePathSize = GetDevicePathSize (OptionDevicePath);
+
+ //
+ // Skip legacy boot option (BBS boot device)
+ //
+ if ((DevicePathType (OptionDevicePath) == BBS_DEVICE_PATH) &&
+ (DevicePathSubType (OptionDevicePath) == BBS_BBS_DP)) {
+ gBS->FreePool (BootOptionVar);
+ Index++;
+ continue;
+ }
+
+ TempDevicePath = OptionDevicePath;
+ LastDeviceNode = OptionDevicePath;
+ while (!EfiIsDevicePathEnd (TempDevicePath)) {
+ LastDeviceNode = TempDevicePath;
+ TempDevicePath = EfiNextDevicePathNode (TempDevicePath);
+ }
+ //
+ // Skip the boot option that point to a file, since the device path in
+ // removable media boot option doesn't contains a file name.
+ //
+ if (((DevicePathType (LastDeviceNode) == MEDIA_DEVICE_PATH) &&
+ (DevicePathSubType (LastDeviceNode) == MEDIA_FILEPATH_DP)) ||
+ //
+ // Skip boot option for internal Shell, it's always valid
+ //
+ (EfiGetNameGuidFromFwVolDevicePathNode ((MEDIA_FW_VOL_FILEPATH_DEVICE_PATH *) LastDeviceNode) != NULL)) {
+ gBS->FreePool (BootOptionVar);
+ Index++;
+ continue;
+ }
+
+ NeedDelete = TRUE;
+ //
+ // Check if it's a valid boot option for removable media
+ //
+ TempDevicePath = OptionDevicePath;
+ Status = gBS->LocateDevicePath (
+ &gEfiSimpleFileSystemProtocolGuid,
+ &TempDevicePath,
+ &Handle
+ );
+ if (!EFI_ERROR (Status)) {
+ NeedDelete = FALSE;
+ }
+ //
+ // Check if it's a valid boot option for network boot device
+ //
+ TempDevicePath = OptionDevicePath;
+ Status = gBS->LocateDevicePath (
+ &gEfiLoadFileProtocolGuid,
+ &TempDevicePath,
+ &Handle
+ );
+ if (!EFI_ERROR (Status)) {
+ NeedDelete = FALSE;
+ }
+
+ if (NeedDelete) {
+ //
+ // Delete this invalid boot option "Boot####"
+ //
+ Status = gRT->SetVariable (
+ BootOption,
+ &gEfiGlobalVariableGuid,
+ EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE,
+ 0,
+ NULL
+ );
+ //
+ // Mark this boot option in boot order as deleted
+ //
+ BootOrder[Index] = 0xffff;
+ }
+
+ gBS->FreePool (BootOptionVar);
+ Index++;
+ }
+
+ //
+ // Adjust boot order array
+ //
+ Index2 = 0;
+ for (Index = 0; Index < BootOrderSize / sizeof (UINT16); Index++) {
+ if (BootOrder[Index] != 0xffff) {
+ BootOrder[Index2] = BootOrder[Index];
+ Index2 ++;
+ }
+ }
+ Status = gRT->SetVariable (
+ L"BootOrder",
+ &gEfiGlobalVariableGuid,
+ EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE,
+ Index2 * sizeof (UINT16),
+ BootOrder
+ );
+
+ gBS->FreePool (BootOrder);
+
+ return Status;
+}
+
+EFI_STATUS
+BdsLibEnumerateAllBootOption (
+ IN OUT LIST_ENTRY *BdsBootOptionList
+ )
+/*++
+
+Routine Description:
+
+ This function will enumerate all possible boot device in the system,
+ it will only excute once of every boot.
+
+Arguments:
+
+ BdsBootOptionList - The header of the link list which indexed all
+ current boot options
+
+Returns:
+
+ EFI_SUCCESS - Finished all the boot device enumerate and create
+ the boot option base on that boot device
+
+--*/
+{
+ EFI_STATUS Status;
+ UINT16 BootOptionNumber;
+ UINTN NumberFileSystemHandles;
+ EFI_HANDLE *FileSystemHandles;
+ EFI_BLOCK_IO_PROTOCOL *BlkIo;
+ UINTN Index;
+ UINTN NumberLoadFileHandles;
+ EFI_HANDLE *LoadFileHandles;
+ VOID *ProtocolInstance;
+ EFI_FIRMWARE_VOLUME_PROTOCOL *Fv;
+ UINTN FvHandleCount;
+ EFI_HANDLE *FvHandleBuffer;
+ EFI_FV_FILETYPE Type;
+ UINTN Size;
+ EFI_FV_FILE_ATTRIBUTES Attributes;
+ UINT32 AuthenticationStatus;
+ EFI_DEVICE_PATH_PROTOCOL *FilePath;
+ EFI_HANDLE ImageHandle;
+ EFI_LOADED_IMAGE_PROTOCOL *ImageInfo;
+ BOOLEAN NeedDelete;
+
+ BootOptionNumber = 0;
+
+ //
+ // If the boot device enumerate happened, just get the boot
+ // device from the boot order variable
+ //
+ if (mEnumBootDevice) {
+ BdsLibBuildOptionFromVar (BdsBootOptionList, L"BootOrder");
+ return EFI_SUCCESS;
+ }
+ //
+ // Notes: this dirty code is to get the legacy boot option from the
+ // BBS table and create to variable as the EFI boot option, it should
+ // be removed after the CSM can provide legacy boot option directly
+ //
+ REFRESH_LEGACY_BOOT_OPTIONS;
+
+ //
+ // Delete invalid boot option
+ //
+ BdsDeleteAllInvalidEfiBootOption ();
+ //
+ // Parse removable media
+ //
+ gBS->LocateHandleBuffer (
+ ByProtocol,
+ &gEfiSimpleFileSystemProtocolGuid,
+ NULL,
+ &NumberFileSystemHandles,
+ &FileSystemHandles
+ );
+ for (Index = 0; Index < NumberFileSystemHandles; Index++) {
+ Status = gBS->HandleProtocol (
+ FileSystemHandles[Index],
+ &gEfiBlockIoProtocolGuid,
+ (VOID **) &BlkIo
+ );
+ if (!EFI_ERROR (Status)) {
+ if (!BlkIo->Media->RemovableMedia) {
+ //
+ // If the file system handle supports a BlkIo protocol,
+ // skip the removable media devices
+ //
+ continue;
+ }
+ }
+
+ //
+ // Do the removable Media thing. \EFI\BOOT\boot{machinename}.EFI
+ // machinename is ia32, ia64, x64, ...
+ //
+ FilePath = FileDevicePath (FileSystemHandles[Index], EFI_REMOVABLE_MEDIA_FILE_NAME);
+ NeedDelete = TRUE;
+ Status = gBS->LoadImage (
+ TRUE,
+ mBdsImageHandle,
+ FilePath,
+ NULL,
+ 0,
+ &ImageHandle
+ );
+ if (!EFI_ERROR(Status)) {
+ //
+ // Verify the image is a EFI application (and not a driver)
+ //
+ Status = gBS->HandleProtocol (ImageHandle, &gEfiLoadedImageProtocolGuid, (VOID **) &ImageInfo);
+ ASSERT (!EFI_ERROR(Status));
+
+ if (ImageInfo->ImageCodeType == EfiLoaderCode) {
+ NeedDelete = FALSE;
+ }
+ }
+
+ if (NeedDelete) {
+ //
+ // No such file or the file is not a EFI application, delete this boot option
+ //
+ BdsLibDeleteOptionFromHandle (FileSystemHandles[Index]);
+ } else {
+ BdsLibBuildOptionFromHandle (FileSystemHandles[Index], BdsBootOptionList);
+ BootOptionNumber++;
+ }
+ }
+
+ if (NumberFileSystemHandles) {
+ gBS->FreePool (FileSystemHandles);
+ }
+ //
+ // Parse Network Boot Device
+ //
+ gBS->LocateHandleBuffer (
+ ByProtocol,
+ &gEfiSimpleNetworkProtocolGuid,
+ NULL,
+ &NumberLoadFileHandles,
+ &LoadFileHandles
+ );
+ for (Index = 0; Index < NumberLoadFileHandles; Index++) {
+ Status = gBS->HandleProtocol (
+ LoadFileHandles[Index],
+ &gEfiLoadFileProtocolGuid,
+ (VOID **) &ProtocolInstance
+ );
+ if (EFI_ERROR (Status)) {
+ continue;
+ }
+
+ BdsLibBuildOptionFromHandle (LoadFileHandles[Index], BdsBootOptionList);
+ BootOptionNumber++;
+ }
+
+ if (NumberLoadFileHandles) {
+ gBS->FreePool (LoadFileHandles);
+ }
+ //
+ // Check if we have on flash shell
+ //
+ gBS->LocateHandleBuffer (
+ ByProtocol,
+ &gEfiFirmwareVolumeProtocolGuid,
+ NULL,
+ &FvHandleCount,
+ &FvHandleBuffer
+ );
+ for (Index = 0; Index < FvHandleCount; Index++) {
+ gBS->HandleProtocol (
+ FvHandleBuffer[Index],
+ &gEfiFirmwareVolumeProtocolGuid,
+ (VOID **) &Fv
+ );
+
+ Status = Fv->ReadFile (
+ Fv,
+ &gEfiShellFileGuid,
+ NULL,
+ &Size,
+ &Type,
+ &Attributes,
+ &AuthenticationStatus
+ );
+ if (EFI_ERROR (Status)) {
+ //
+ // Skip if no shell file in the FV
+ //
+ continue;
+ }
+ //
+ // Build the shell boot option
+ //
+ BdsLibBuildOptionFromShell (FvHandleBuffer[Index], BdsBootOptionList);
+ BootOptionNumber++;
+ }
+
+ if (FvHandleCount) {
+ gBS->FreePool (FvHandleBuffer);
+ }
+ //
+ // Make sure every boot only have one time
+ // boot device enumerate
+ //
+ BdsLibBuildOptionFromVar (BdsBootOptionList, L"BootOrder");
+ mEnumBootDevice = TRUE;
+
+ return EFI_SUCCESS;
+}
+
+VOID
+BdsLibBuildOptionFromHandle (
+ IN EFI_HANDLE Handle,
+ IN LIST_ENTRY *BdsBootOptionList
+ )
+/*++
+
+Routine Description:
+
+ Build the boot option with the handle parsed in
+
+Arguments:
+
+ Handle - The handle which present the device path to create boot option
+
+ BdsBootOptionList - The header of the link list which indexed all current
+ boot options
+
+Returns:
+
+ VOID
+
+--*/
+{
+ EFI_DEVICE_PATH_PROTOCOL *DevicePath;
+ CHAR16 *TempString;
+
+ DevicePath = DevicePathFromHandle (Handle);
+ TempString = DevicePathToStr (DevicePath);
+
+ //
+ // Create and register new boot option
+ //
+ BdsLibRegisterNewOption (BdsBootOptionList, DevicePath, TempString, L"BootOrder");
+}
+
+VOID
+BdsLibBuildOptionFromShell (
+ IN EFI_HANDLE Handle,
+ IN OUT LIST_ENTRY *BdsBootOptionList
+ )
+/*++
+
+Routine Description:
+
+ Build the on flash shell boot option with the handle parsed in
+
+Arguments:
+
+ Handle - The handle which present the device path to create on flash shell
+ boot option
+
+ BdsBootOptionList - The header of the link list which indexed all current
+ boot options
+
+Returns:
+
+ None
+
+--*/
+{
+ EFI_DEVICE_PATH_PROTOCOL *DevicePath;
+ MEDIA_FW_VOL_FILEPATH_DEVICE_PATH ShellNode;
+
+ DevicePath = DevicePathFromHandle (Handle);
+
+ //
+ // Build the shell device path
+ //
+ EfiInitializeFwVolDevicepathNode (&ShellNode, &gEfiShellFileGuid);
+ DevicePath = AppendDevicePathNode (DevicePath, (EFI_DEVICE_PATH_PROTOCOL *) &ShellNode);
+
+ //
+ // Create and register the shell boot option
+ //
+ BdsLibRegisterNewOption (BdsBootOptionList, DevicePath, L"Internal EFI Shell", L"BootOrder");
+
+}
+
+VOID
+BdsLibBootNext (
+ VOID
+ )
+/*++
+
+Routine Description:
+
+ Boot from the EFI1.1 spec defined "BootNext" variable
+
+Arguments:
+
+ None
+
+Returns:
+
+ None
+
+--*/
+{
+ UINT16 *BootNext;
+ UINTN BootNextSize;
+ CHAR16 Buffer[20];
+ BDS_COMMON_OPTION *BootOption;
+ LIST_ENTRY TempList;
+ UINTN ExitDataSize;
+ CHAR16 *ExitData;
+
+ //
+ // Init the boot option name buffer and temp link list
+ //
+ InitializeListHead (&TempList);
+ ZeroMem (Buffer, sizeof (Buffer));
+
+ BootNext = BdsLibGetVariableAndSize (
+ L"BootNext",
+ &gEfiGlobalVariableGuid,
+ &BootNextSize
+ );
+
+ //
+ // Clear the boot next variable first
+ //
+ if (BootNext != NULL) {
+ gRT->SetVariable (
+ L"BootNext",
+ &gEfiGlobalVariableGuid,
+ EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE,
+ 0,
+ BootNext
+ );
+
+ //
+ // Start to build the boot option and try to boot
+ //
+ UnicodeSPrint (Buffer, sizeof (Buffer), L"Boot%04x", *BootNext);
+ BootOption = BdsLibVariableToOption (&TempList, Buffer);
+ BdsLibConnectDevicePath (BootOption->DevicePath);
+ BdsLibBootViaBootOption (BootOption, BootOption->DevicePath, &ExitDataSize, &ExitData);
+ }
+
+}
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