ArmPlatformPkg/Bds/BootMenu.c
/** @file
*
* Copyright (c) 2011-2013, 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"
#include <Guid/ArmGlobalVariableHob.h>
extern EFI_HANDLE mImageHandle;
extern BDS_LOAD_OPTION_SUPPORT *BdsLoadOptionSupportList;
EFI_STATUS
SelectBootDevice (
OUT BDS_SUPPORTED_DEVICE** SupportedBootDevice
)
{
EFI_STATUS Status;
LIST_ENTRY SupportedDeviceList;
UINTN SupportedDeviceCount;
LIST_ENTRY* Entry;
UINTN SupportedDeviceSelected;
UINTN Index;
//
// List the Boot Devices supported
//
// Start all the drivers first
BdsConnectAllDrivers ();
// List the supported devices
Status = BootDeviceListSupportedInit (&SupportedDeviceList);
ASSERT_EFI_ERROR(Status);
SupportedDeviceCount = 0;
for (Entry = GetFirstNode (&SupportedDeviceList);
!IsNull (&SupportedDeviceList,Entry);
Entry = GetNextNode (&SupportedDeviceList,Entry)
)
{
*SupportedBootDevice = SUPPORTED_BOOT_DEVICE_FROM_LINK(Entry);
Print(L"[%d] %s\n",SupportedDeviceCount+1,(*SupportedBootDevice)->Description);
DEBUG_CODE_BEGIN();
CHAR16* DevicePathTxt;
EFI_DEVICE_PATH_TO_TEXT_PROTOCOL* DevicePathToTextProtocol;
Status = gBS->LocateProtocol (&gEfiDevicePathToTextProtocolGuid, NULL, (VOID **)&DevicePathToTextProtocol);
ASSERT_EFI_ERROR(Status);
DevicePathTxt = DevicePathToTextProtocol->ConvertDevicePathToText ((*SupportedBootDevice)->DevicePathProtocol,TRUE,TRUE);
Print(L"\t- %s\n",DevicePathTxt);
FreePool(DevicePathTxt);
DEBUG_CODE_END();
SupportedDeviceCount++;
}
if (SupportedDeviceCount == 0) {
Print(L"There is no supported device.\n");
Status = EFI_ABORTED;
goto EXIT;
}
//
// Select the Boot Device
//
SupportedDeviceSelected = 0;
while (SupportedDeviceSelected == 0) {
Print(L"Select the Boot Device: ");
Status = GetHIInputInteger (&SupportedDeviceSelected);
if (EFI_ERROR(Status)) {
Status = EFI_ABORTED;
goto EXIT;
} else if ((SupportedDeviceSelected == 0) || (SupportedDeviceSelected > SupportedDeviceCount)) {
Print(L"Invalid input (max %d)\n",SupportedDeviceCount);
SupportedDeviceSelected = 0;
}
}
//
// Get the Device Path for the selected boot device
//
Index = 1;
for (Entry = GetFirstNode (&SupportedDeviceList);
!IsNull (&SupportedDeviceList,Entry);
Entry = GetNextNode (&SupportedDeviceList,Entry)
)
{
if (Index == SupportedDeviceSelected) {
*SupportedBootDevice = SUPPORTED_BOOT_DEVICE_FROM_LINK(Entry);
break;
}
Index++;
}
EXIT:
BootDeviceListSupportedFree (&SupportedDeviceList, *SupportedBootDevice);
return Status;
}
EFI_STATUS
BootMenuAddBootOption (
IN LIST_ENTRY *BootOptionsList
)
{
EFI_STATUS Status;
BDS_SUPPORTED_DEVICE* SupportedBootDevice;
ARM_BDS_LOADER_ARGUMENTS* BootArguments;
CHAR16 BootDescription[BOOT_DEVICE_DESCRIPTION_MAX];
CHAR8 CmdLine[BOOT_DEVICE_OPTION_MAX];
UINT32 Attributes;
ARM_BDS_LOADER_TYPE BootType;
BDS_LOAD_OPTION_ENTRY *BdsLoadOptionEntry;
EFI_DEVICE_PATH *DevicePath;
EFI_DEVICE_PATH_PROTOCOL *DevicePathNodes;
EFI_DEVICE_PATH_PROTOCOL *InitrdPathNodes;
EFI_DEVICE_PATH_PROTOCOL *InitrdPath;
UINTN CmdLineSize;
BOOLEAN InitrdSupport;
UINTN InitrdSize;
Attributes = 0;
SupportedBootDevice = NULL;
// List the Boot Devices supported
Status = SelectBootDevice (&SupportedBootDevice);
if (EFI_ERROR(Status)) {
Status = EFI_ABORTED;
goto EXIT;
}
// Create the specific device path node
Status = SupportedBootDevice->Support->CreateDevicePathNode (L"EFI Application or the kernel", &DevicePathNodes, &BootType, &Attributes);
if (EFI_ERROR(Status)) {
Status = EFI_ABORTED;
goto EXIT;
}
// Append the Device Path to the selected device path
DevicePath = AppendDevicePath (SupportedBootDevice->DevicePathProtocol, (CONST EFI_DEVICE_PATH_PROTOCOL *)DevicePathNodes);
if (DevicePath == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto EXIT;
}
if ((BootType == BDS_LOADER_KERNEL_LINUX_ATAG) || (BootType == BDS_LOADER_KERNEL_LINUX_FDT)) {
Print(L"Add an initrd: ");
Status = GetHIInputBoolean (&InitrdSupport);
if (EFI_ERROR(Status)) {
Status = EFI_ABORTED;
goto EXIT;
}
if (InitrdSupport) {
// Create the specific device path node
Status = SupportedBootDevice->Support->CreateDevicePathNode (L"initrd", &InitrdPathNodes, NULL, NULL);
if (EFI_ERROR(Status) && Status != EFI_NOT_FOUND) { // EFI_NOT_FOUND is returned on empty input string, but we can boot without an initrd
Status = EFI_ABORTED;
goto EXIT;
}
if (InitrdPathNodes != NULL) {
// Append the Device Path to the selected device path
InitrdPath = AppendDevicePath (SupportedBootDevice->DevicePathProtocol, (CONST EFI_DEVICE_PATH_PROTOCOL *)InitrdPathNodes);
if (InitrdPath == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto EXIT;
}
} else {
InitrdPath = NULL;
}
} else {
InitrdPath = NULL;
}
Print(L"Arguments to pass to the binary: ");
Status = GetHIInputAscii (CmdLine,BOOT_DEVICE_OPTION_MAX);
if (EFI_ERROR(Status)) {
Status = EFI_ABORTED;
goto FREE_DEVICE_PATH;
}
CmdLineSize = AsciiStrSize (CmdLine);
InitrdSize = GetDevicePathSize (InitrdPath);
BootArguments = (ARM_BDS_LOADER_ARGUMENTS*)AllocatePool (sizeof(ARM_BDS_LOADER_ARGUMENTS) + CmdLineSize + InitrdSize);
BootArguments->LinuxArguments.CmdLineSize = CmdLineSize;
BootArguments->LinuxArguments.InitrdSize = InitrdSize;
CopyMem ((VOID*)(&BootArguments->LinuxArguments + 1), CmdLine, CmdLineSize);
CopyMem ((VOID*)((UINTN)(&BootArguments->LinuxArguments + 1) + CmdLineSize), InitrdPath, InitrdSize);
} else {
BootArguments = NULL;
}
Print(L"Description for this new Entry: ");
Status = GetHIInputStr (BootDescription, BOOT_DEVICE_DESCRIPTION_MAX);
if (EFI_ERROR(Status)) {
Status = EFI_ABORTED;
goto FREE_DEVICE_PATH;
}
// Create new entry
BdsLoadOptionEntry = (BDS_LOAD_OPTION_ENTRY*)AllocatePool (sizeof(BDS_LOAD_OPTION_ENTRY));
Status = BootOptionCreate (Attributes, BootDescription, DevicePath, BootType, BootArguments, &BdsLoadOptionEntry->BdsLoadOption);
if (!EFI_ERROR(Status)) {
InsertTailList (BootOptionsList, &BdsLoadOptionEntry->Link);
}
FREE_DEVICE_PATH:
FreePool (DevicePath);
EXIT:
if (Status == EFI_ABORTED) {
Print(L"\n");
}
FreePool(SupportedBootDevice);
return Status;
}
STATIC
EFI_STATUS
BootMenuSelectBootOption (
IN LIST_ENTRY* BootOptionsList,
IN CONST CHAR16* InputStatement,
IN BOOLEAN OnlyArmBdsBootEntry,
OUT BDS_LOAD_OPTION_ENTRY** BdsLoadOptionEntry
)
{
EFI_STATUS Status;
LIST_ENTRY* Entry;
BDS_LOAD_OPTION* BdsLoadOption;
UINTN BootOptionSelected;
UINTN BootOptionCount;
UINTN Index;
// Display the list of supported boot devices
BootOptionCount = 0;
for (Entry = GetFirstNode (BootOptionsList);
!IsNull (BootOptionsList,Entry);
Entry = GetNextNode (BootOptionsList, Entry)
)
{
BdsLoadOption = LOAD_OPTION_FROM_LINK(Entry);
if (OnlyArmBdsBootEntry && !IS_ARM_BDS_BOOTENTRY (BdsLoadOption)) {
continue;
}
Print (L"[%d] %s\n", (BootOptionCount + 1), BdsLoadOption->Description);
DEBUG_CODE_BEGIN();
CHAR16* DevicePathTxt;
EFI_DEVICE_PATH_TO_TEXT_PROTOCOL* DevicePathToTextProtocol;
ARM_BDS_LOADER_TYPE LoaderType;
ARM_BDS_LOADER_OPTIONAL_DATA* OptionalData;
Status = gBS->LocateProtocol(&gEfiDevicePathToTextProtocolGuid, NULL, (VOID **)&DevicePathToTextProtocol);
ASSERT_EFI_ERROR(Status);
DevicePathTxt = DevicePathToTextProtocol->ConvertDevicePathToText(BdsLoadOption->FilePathList,TRUE,TRUE);
Print(L"\t- %s\n",DevicePathTxt);
OptionalData = BdsLoadOption->OptionalData;
LoaderType = (ARM_BDS_LOADER_TYPE)ReadUnaligned32 ((CONST UINT32*)&OptionalData->Header.LoaderType);
if ((LoaderType == BDS_LOADER_KERNEL_LINUX_ATAG) || (LoaderType == BDS_LOADER_KERNEL_LINUX_FDT)) {
Print (L"\t- Arguments: %a\n",&OptionalData->Arguments.LinuxArguments + 1);
}
FreePool(DevicePathTxt);
DEBUG_CODE_END();
BootOptionCount++;
}
// Check if a valid boot option(s) is found
if (BootOptionCount == 0) {
if (StrCmp (InputStatement, DELETE_BOOT_ENTRY) == 0) {
Print (L"Nothing to remove!\n");
} else if (StrCmp (InputStatement, UPDATE_BOOT_ENTRY) == 0) {
Print (L"Couldn't find valid boot entries\n");
} else{
Print (L"No supported Boot Entry.\n");
}
return EFI_NOT_FOUND;
}
// Get the index of the boot device to delete
BootOptionSelected = 0;
while (BootOptionSelected == 0) {
Print(InputStatement);
Status = GetHIInputInteger (&BootOptionSelected);
if (EFI_ERROR(Status)) {
return Status;
} else if ((BootOptionSelected == 0) || (BootOptionSelected > BootOptionCount)) {
Print(L"Invalid input (max %d)\n",BootOptionCount);
BootOptionSelected = 0;
}
}
// Get the structure of the Boot device to delete
Index = 1;
for (Entry = GetFirstNode (BootOptionsList);
!IsNull (BootOptionsList, Entry);
Entry = GetNextNode (BootOptionsList,Entry)
)
{
if (Index == BootOptionSelected) {
*BdsLoadOptionEntry = LOAD_OPTION_ENTRY_FROM_LINK(Entry);
break;
}
Index++;
}
return EFI_SUCCESS;
}
EFI_STATUS
BootMenuRemoveBootOption (
IN LIST_ENTRY *BootOptionsList
)
{
EFI_STATUS Status;
BDS_LOAD_OPTION_ENTRY* BootOptionEntry;
Status = BootMenuSelectBootOption (BootOptionsList, DELETE_BOOT_ENTRY, FALSE, &BootOptionEntry);
if (EFI_ERROR(Status)) {
return Status;
}
// If the Boot Option was attached to a list remove it
if (!IsListEmpty (&BootOptionEntry->Link)) {
// Remove the entry from the list
RemoveEntryList (&BootOptionEntry->Link);
}
// Delete the BDS Load option structures
BootOptionDelete (BootOptionEntry->BdsLoadOption);
return EFI_SUCCESS;
}
EFI_STATUS
BootMenuUpdateBootOption (
IN LIST_ENTRY *BootOptionsList
)
{
EFI_STATUS Status;
BDS_LOAD_OPTION_ENTRY *BootOptionEntry;
BDS_LOAD_OPTION *BootOption;
BDS_LOAD_OPTION_SUPPORT* DeviceSupport;
ARM_BDS_LOADER_ARGUMENTS* BootArguments;
CHAR16 BootDescription[BOOT_DEVICE_DESCRIPTION_MAX];
CHAR8 CmdLine[BOOT_DEVICE_OPTION_MAX];
EFI_DEVICE_PATH *DevicePath;
EFI_DEVICE_PATH *TempInitrdPath;
ARM_BDS_LOADER_TYPE BootType;
ARM_BDS_LOADER_OPTIONAL_DATA* OptionalData;
ARM_BDS_LINUX_ARGUMENTS* LinuxArguments;
EFI_DEVICE_PATH *InitrdPathNodes;
EFI_DEVICE_PATH *InitrdPath;
UINTN InitrdSize;
UINTN CmdLineSize;
BOOLEAN InitrdSupport;
Status = BootMenuSelectBootOption (BootOptionsList, UPDATE_BOOT_ENTRY, TRUE, &BootOptionEntry);
if (EFI_ERROR(Status)) {
return Status;
}
BootOption = BootOptionEntry->BdsLoadOption;
// Get the device support for this Boot Option
Status = BootDeviceGetDeviceSupport (BootOption->FilePathList, &DeviceSupport);
if (EFI_ERROR(Status)) {
Print(L"Not possible to retrieve the supported device for the update\n");
return EFI_UNSUPPORTED;
}
Status = DeviceSupport->UpdateDevicePathNode (BootOption->FilePathList, L"EFI Application or the kernel", &DevicePath, NULL, NULL);
if (EFI_ERROR(Status)) {
Status = EFI_ABORTED;
goto EXIT;
}
OptionalData = BootOption->OptionalData;
BootType = (ARM_BDS_LOADER_TYPE)ReadUnaligned32 ((UINT32 *)(&OptionalData->Header.LoaderType));
if ((BootType == BDS_LOADER_KERNEL_LINUX_ATAG) || (BootType == BDS_LOADER_KERNEL_LINUX_FDT)) {
LinuxArguments = &OptionalData->Arguments.LinuxArguments;
CmdLineSize = ReadUnaligned16 ((CONST UINT16*)&LinuxArguments->CmdLineSize);
InitrdSize = ReadUnaligned16 ((CONST UINT16*)&LinuxArguments->InitrdSize);
if (InitrdSize > 0) {
Print(L"Keep the initrd: ");
} else {
Print(L"Add an initrd: ");
}
Status = GetHIInputBoolean (&InitrdSupport);
if (EFI_ERROR(Status)) {
Status = EFI_ABORTED;
goto EXIT;
}
if (InitrdSupport) {
if (InitrdSize > 0) {
// Case we update the initrd device path
Status = DeviceSupport->UpdateDevicePathNode ((EFI_DEVICE_PATH*)((UINTN)(LinuxArguments + 1) + CmdLineSize), L"initrd", &InitrdPath, NULL, NULL);
if (EFI_ERROR(Status) && Status != EFI_NOT_FOUND) {// EFI_NOT_FOUND is returned on empty input string, but we can boot without an initrd
Status = EFI_ABORTED;
goto EXIT;
}
InitrdSize = GetDevicePathSize (InitrdPath);
} else {
// Case we create the initrd device path
Status = DeviceSupport->CreateDevicePathNode (L"initrd", &InitrdPathNodes, NULL, NULL);
if (EFI_ERROR(Status) && Status != EFI_NOT_FOUND) { // EFI_NOT_FOUND is returned on empty input string, but we can boot without an initrd
Status = EFI_ABORTED;
goto EXIT;
}
if (InitrdPathNodes != NULL) {
// Duplicate Linux kernel Device Path
TempInitrdPath = DuplicateDevicePath (BootOption->FilePathList);
// Replace Linux kernel Node by EndNode
SetDevicePathEndNode (GetLastDevicePathNode (TempInitrdPath));
// Append the Device Path to the selected device path
InitrdPath = AppendDevicePath (TempInitrdPath, (CONST EFI_DEVICE_PATH_PROTOCOL *)InitrdPathNodes);
FreePool (TempInitrdPath);
if (InitrdPath == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto EXIT;
}
InitrdSize = GetDevicePathSize (InitrdPath);
} else {
InitrdPath = NULL;
}
}
} else {
InitrdSize = 0;
}
Print(L"Arguments to pass to the binary: ");
if (CmdLineSize > 0) {
AsciiStrnCpy(CmdLine, (CONST CHAR8*)(LinuxArguments + 1), CmdLineSize);
} else {
CmdLine[0] = '\0';
}
Status = EditHIInputAscii (CmdLine, BOOT_DEVICE_OPTION_MAX);
if (EFI_ERROR(Status)) {
Status = EFI_ABORTED;
goto FREE_DEVICE_PATH;
}
CmdLineSize = AsciiStrSize (CmdLine);
BootArguments = (ARM_BDS_LOADER_ARGUMENTS*)AllocatePool(sizeof(ARM_BDS_LOADER_ARGUMENTS) + CmdLineSize + InitrdSize);
BootArguments->LinuxArguments.CmdLineSize = CmdLineSize;
BootArguments->LinuxArguments.InitrdSize = InitrdSize;
CopyMem (&BootArguments->LinuxArguments + 1, CmdLine, CmdLineSize);
CopyMem ((VOID*)((UINTN)(&BootArguments->LinuxArguments + 1) + CmdLineSize), InitrdPath, InitrdSize);
} else {
BootArguments = NULL;
}
Print(L"Description for this new Entry: ");
StrnCpy (BootDescription, BootOption->Description, BOOT_DEVICE_DESCRIPTION_MAX);
Status = EditHIInputStr (BootDescription, BOOT_DEVICE_DESCRIPTION_MAX);
if (EFI_ERROR(Status)) {
Status = EFI_ABORTED;
goto FREE_DEVICE_PATH;
}
// Update the entry
Status = BootOptionUpdate (BootOption, BootOption->Attributes, BootDescription, DevicePath, BootType, BootArguments);
FREE_DEVICE_PATH:
FreePool (DevicePath);
EXIT:
if (Status == EFI_ABORTED) {
Print(L"\n");
}
return Status;
}
EFI_STATUS
UpdateFdtPath (
IN LIST_ENTRY *BootOptionsList
)
{
EFI_STATUS Status;
UINTN FdtDevicePathSize;
BDS_SUPPORTED_DEVICE *SupportedBootDevice;
EFI_DEVICE_PATH_PROTOCOL *FdtDevicePathNodes;
EFI_DEVICE_PATH_PROTOCOL *FdtDevicePath;
Status = SelectBootDevice (&SupportedBootDevice);
if (EFI_ERROR(Status)) {
Status = EFI_ABORTED;
goto EXIT;
}
// Create the specific device path node
Status = SupportedBootDevice->Support->CreateDevicePathNode (L"FDT blob", &FdtDevicePathNodes, NULL, NULL);
if (EFI_ERROR(Status)) {
Status = EFI_ABORTED;
goto EXIT;
}
if (FdtDevicePathNodes != NULL) {
// Append the Device Path node to the select device path
FdtDevicePath = AppendDevicePath (SupportedBootDevice->DevicePathProtocol, FdtDevicePathNodes);
FdtDevicePathSize = GetDevicePathSize (FdtDevicePath);
Status = gRT->SetVariable (
(CHAR16*)L"Fdt",
&gArmGlobalVariableGuid,
EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS,
FdtDevicePathSize,
FdtDevicePath
);
ASSERT_EFI_ERROR(Status);
} else {
gRT->SetVariable (
(CHAR16*)L"Fdt",
&gArmGlobalVariableGuid,
EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS,
0,
NULL
);
ASSERT_EFI_ERROR(Status);
}
EXIT:
if (Status == EFI_ABORTED) {
Print(L"\n");
}
FreePool(SupportedBootDevice);
return Status;
}
struct BOOT_MANAGER_ENTRY {
CONST CHAR16* Description;
EFI_STATUS (*Callback) (IN LIST_ENTRY *BootOptionsList);
} BootManagerEntries[] = {
{ L"Add Boot Device Entry", BootMenuAddBootOption },
{ L"Update Boot Device Entry", BootMenuUpdateBootOption },
{ L"Remove Boot Device Entry", BootMenuRemoveBootOption },
{ L"Update FDT path", UpdateFdtPath },
};
EFI_STATUS
BootMenuManager (
IN LIST_ENTRY *BootOptionsList
)
{
UINTN Index;
UINTN OptionSelected;
UINTN BootManagerEntryCount;
EFI_STATUS Status;
BootManagerEntryCount = sizeof(BootManagerEntries) / sizeof(struct BOOT_MANAGER_ENTRY);
while (TRUE) {
// Display Boot Manager menu
for (Index = 0; Index < BootManagerEntryCount; Index++) {
Print(L"[%d] %s\n",Index+1,BootManagerEntries[Index]);
}
Print(L"[%d] Return to main menu\n",Index+1);
// Select which entry to call
Print(L"Choice: ");
Status = GetHIInputInteger (&OptionSelected);
if (EFI_ERROR(Status) || (OptionSelected == (BootManagerEntryCount+1))) {
if (EFI_ERROR(Status)) {
Print(L"\n");
}
return EFI_SUCCESS;
} else if ((OptionSelected > 0) && (OptionSelected <= BootManagerEntryCount)) {
BootManagerEntries[OptionSelected-1].Callback (BootOptionsList);
}
}
// Should never go here
}
EFI_STATUS
BootShell (
IN LIST_ENTRY *BootOptionsList
)
{
EFI_STATUS Status;
// Start EFI Shell
Status = BdsLoadApplication (mImageHandle, L"Shell", 0, NULL);
if (Status == EFI_NOT_FOUND) {
Print (L"Error: EFI Application not found.\n");
} else if (EFI_ERROR(Status)) {
Print (L"Error: Status Code: 0x%X\n",(UINT32)Status);
}
return Status;
}
struct BOOT_MAIN_ENTRY {
CONST CHAR16* Description;
EFI_STATUS (*Callback) (IN LIST_ENTRY *BootOptionsList);
} BootMainEntries[] = {
{ L"Shell", BootShell },
{ L"Boot Manager", BootMenuManager },
};
EFI_STATUS
BootMenuMain (
VOID
)
{
LIST_ENTRY BootOptionsList;
UINTN OptionCount;
UINTN BootOptionCount;
EFI_STATUS Status;
LIST_ENTRY* Entry;
BDS_LOAD_OPTION* BootOption;
UINTN BootOptionSelected;
UINTN Index;
UINTN BootMainEntryCount;
BootOption = NULL;
BootMainEntryCount = sizeof(BootMainEntries) / sizeof(struct BOOT_MAIN_ENTRY);
while (TRUE) {
// Get Boot#### list
BootOptionList (&BootOptionsList);
OptionCount = 1;
// Display the Boot options
for (Entry = GetFirstNode (&BootOptionsList);
!IsNull (&BootOptionsList,Entry);
Entry = GetNextNode (&BootOptionsList,Entry)
)
{
BootOption = LOAD_OPTION_FROM_LINK(Entry);
Print(L"[%d] %s\n", OptionCount, BootOption->Description);
DEBUG_CODE_BEGIN();
CHAR16* DevicePathTxt;
EFI_DEVICE_PATH_TO_TEXT_PROTOCOL* DevicePathToTextProtocol;
ARM_BDS_LOADER_OPTIONAL_DATA* OptionalData;
UINTN CmdLineSize;
ARM_BDS_LOADER_TYPE LoaderType;
Status = gBS->LocateProtocol (&gEfiDevicePathToTextProtocolGuid, NULL, (VOID **)&DevicePathToTextProtocol);
if (EFI_ERROR(Status)) {
// You must provide an implementation of DevicePathToTextProtocol in your firmware (eg: DevicePathDxe)
DEBUG((EFI_D_ERROR,"Error: Bds requires DevicePathToTextProtocol\n"));
return Status;
}
DevicePathTxt = DevicePathToTextProtocol->ConvertDevicePathToText (BootOption->FilePathList, TRUE, TRUE);
Print(L"\t- %s\n",DevicePathTxt);
// If it is a supported BootEntry then print its details
if (IS_ARM_BDS_BOOTENTRY (BootOption)) {
OptionalData = BootOption->OptionalData;
LoaderType = (ARM_BDS_LOADER_TYPE)ReadUnaligned32 ((CONST UINT32*)&OptionalData->Header.LoaderType);
if ((LoaderType == BDS_LOADER_KERNEL_LINUX_ATAG) || (LoaderType == BDS_LOADER_KERNEL_LINUX_FDT)) {
if (ReadUnaligned16 (&OptionalData->Arguments.LinuxArguments.InitrdSize) > 0) {
CmdLineSize = ReadUnaligned16 (&OptionalData->Arguments.LinuxArguments.CmdLineSize);
DevicePathTxt = DevicePathToTextProtocol->ConvertDevicePathToText (
GetAlignedDevicePath ((EFI_DEVICE_PATH*)((UINTN)(&OptionalData->Arguments.LinuxArguments + 1) + CmdLineSize)), TRUE, TRUE);
Print(L"\t- Initrd: %s\n", DevicePathTxt);
}
Print(L"\t- Arguments: %a\n", (&OptionalData->Arguments.LinuxArguments + 1));
}
switch (LoaderType) {
case BDS_LOADER_EFI_APPLICATION:
Print(L"\t- LoaderType: EFI Application\n");
break;
case BDS_LOADER_KERNEL_LINUX_ATAG:
Print(L"\t- LoaderType: Linux kernel with ATAG support\n");
break;
case BDS_LOADER_KERNEL_LINUX_FDT:
Print(L"\t- LoaderType: Linux kernel with FDT support\n");
break;
default:
Print(L"\t- LoaderType: Not recognized (%d)\n", LoaderType);
}
}
FreePool(DevicePathTxt);
DEBUG_CODE_END();
OptionCount++;
}
BootOptionCount = OptionCount-1;
// Display the hardcoded Boot entries
for (Index = 0; Index < BootMainEntryCount; Index++) {
Print(L"[%d] %s\n",OptionCount,BootMainEntries[Index]);
OptionCount++;
}
// Request the boot entry from the user
BootOptionSelected = 0;
while (BootOptionSelected == 0) {
Print(L"Start: ");
Status = GetHIInputInteger (&BootOptionSelected);
if (EFI_ERROR(Status) || (BootOptionSelected == 0) || (BootOptionSelected > OptionCount)) {
Print(L"Invalid input (max %d)\n",(OptionCount-1));
BootOptionSelected = 0;
}
}
// Start the selected entry
if (BootOptionSelected > BootOptionCount) {
// Start the hardcoded entry
Status = BootMainEntries[BootOptionSelected - BootOptionCount - 1].Callback (&BootOptionsList);
} else {
// Find the selected entry from the Boot#### list
Index = 1;
for (Entry = GetFirstNode (&BootOptionsList);
!IsNull (&BootOptionsList,Entry);
Entry = GetNextNode (&BootOptionsList,Entry)
)
{
if (Index == BootOptionSelected) {
BootOption = LOAD_OPTION_FROM_LINK(Entry);
break;
}
Index++;
}
Status = BootOptionStart (BootOption);
}
}
// Should never go here
}