EFI_STATUS
BootOptionStart (
IN BDS_LOAD_OPTION *BootOption
)
{
EFI_STATUS Status;
EFI_DEVICE_PATH_FROM_TEXT_PROTOCOL* EfiDevicePathFromTextProtocol;
UINT32 LoaderType;
ARM_BDS_LOADER_OPTIONAL_DATA* OptionalData;
ARM_BDS_LINUX_ARGUMENTS* LinuxArguments;
EFI_DEVICE_PATH_PROTOCOL* FdtDevicePath;
EFI_DEVICE_PATH_PROTOCOL* DefaultFdtDevicePath;
UINTN FdtDevicePathSize;
UINTN CmdLineSize;
UINTN InitrdSize;
EFI_DEVICE_PATH* Initrd;
UINT16 LoadOptionIndexSize;
if (IS_ARM_BDS_BOOTENTRY (BootOption)) {
Status = EFI_UNSUPPORTED;
OptionalData = BootOption->OptionalData;
LoaderType = ReadUnaligned32 ((CONST UINT32*)&OptionalData->Header.LoaderType);
if (LoaderType == BDS_LOADER_EFI_APPLICATION) {
if ((BootOption->Attributes & LOAD_OPTION_CATEGORY) == LOAD_OPTION_CATEGORY_APP) {
// Need to connect every drivers to ensure no dependencies are missing for the application
BdsConnectAllDrivers ();
}
Status = BdsStartEfiApplication (gImageHandle, BootOption->FilePathList, 0, NULL);
} else if (LoaderType == BDS_LOADER_KERNEL_LINUX_ATAG) {
LinuxArguments = &(OptionalData->Arguments.LinuxArguments);
CmdLineSize = ReadUnaligned16 ((CONST UINT16*)&LinuxArguments->CmdLineSize);
InitrdSize = ReadUnaligned16 ((CONST UINT16*)&LinuxArguments->InitrdSize);
if (InitrdSize > 0) {
Initrd = GetAlignedDevicePath ((EFI_DEVICE_PATH*)((UINTN)(LinuxArguments + 1) + CmdLineSize));
} else {
Initrd = NULL;
}
Status = BdsBootLinuxAtag (BootOption->FilePathList,
Initrd, // Initrd
(CHAR8*)(LinuxArguments + 1)); // CmdLine
} else if (LoaderType == BDS_LOADER_KERNEL_LINUX_FDT) {
LinuxArguments = &(OptionalData->Arguments.LinuxArguments);
CmdLineSize = ReadUnaligned16 ((CONST UINT16*)&LinuxArguments->CmdLineSize);
InitrdSize = ReadUnaligned16 ((CONST UINT16*)&LinuxArguments->InitrdSize);
if (InitrdSize > 0) {
Initrd = GetAlignedDevicePath ((EFI_DEVICE_PATH*)((UINTN)(LinuxArguments + 1) + CmdLineSize));
} else {
Initrd = NULL;
}
// Get the default FDT device path
Status = gBS->LocateProtocol (&gEfiDevicePathFromTextProtocolGuid, NULL, (VOID **)&EfiDevicePathFromTextProtocol);
ASSERT_EFI_ERROR(Status);
DefaultFdtDevicePath = EfiDevicePathFromTextProtocol->ConvertTextToDevicePath ((CHAR16*)PcdGetPtr(PcdFdtDevicePath));
// Get the FDT device path
FdtDevicePathSize = GetDevicePathSize (DefaultFdtDevicePath);
Status = GetEnvironmentVariable ((CHAR16 *)L"Fdt", &gArmGlobalVariableGuid,
DefaultFdtDevicePath, &FdtDevicePathSize, (VOID **)&FdtDevicePath);
ASSERT_EFI_ERROR(Status);
Status = BdsBootLinuxFdt (BootOption->FilePathList,
Initrd, // Initrd
(CHAR8*)(LinuxArguments + 1),
FdtDevicePath);
FreePool (DefaultFdtDevicePath);
FreePool (FdtDevicePath);
}
} else {
// Connect all the drivers if the EFI Application is not a EFI OS Loader
if ((BootOption->Attributes & LOAD_OPTION_CATEGORY) == LOAD_OPTION_CATEGORY_APP) {
BdsConnectAllDrivers ();
}
// Set BootCurrent variable
LoadOptionIndexSize = sizeof(UINT16);
gRT->SetVariable (L"BootCurrent", &gEfiGlobalVariableGuid,
EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
LoadOptionIndexSize, &(BootOption->LoadOptionIndex));
Status = BdsStartEfiApplication (gImageHandle, BootOption->FilePathList, BootOption->OptionalDataSize, BootOption->OptionalData);
// Clear BootCurrent variable
LoadOptionIndexSize = sizeof(UINT16);
gRT->SetVariable (L"BootCurrent", &gEfiGlobalVariableGuid,
EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
0, NULL);
}
return Status;
}
EFI_STATUS
BootAndroidBootImg (
IN UINTN BufferSize,
IN VOID *Buffer
)
{
EFI_STATUS Status;
CHAR8 KernelArgs[BOOTIMG_KERNEL_ARGS_SIZE];
VOID *Kernel;
UINTN KernelSize;
VOID *Ramdisk;
UINTN RamdiskSize;
MEMORY_DEVICE_PATH KernelDevicePath;
MEMORY_DEVICE_PATH* RamdiskDevicePath;
Status = ParseAndroidBootImg (
Buffer,
&Kernel,
&KernelSize,
&Ramdisk,
&RamdiskSize,
KernelArgs
);
if (EFI_ERROR (Status)) {
return Status;
}
KernelDevicePath = MemoryDevicePathTemplate;
// Have to cast to UINTN before casting to EFI_PHYSICAL_ADDRESS in order to
// appease GCC.
KernelDevicePath.Node1.StartingAddress = (EFI_PHYSICAL_ADDRESS)(UINTN) Kernel;
KernelDevicePath.Node1.EndingAddress = (EFI_PHYSICAL_ADDRESS)(UINTN) Kernel + KernelSize;
RamdiskDevicePath = NULL;
if (RamdiskSize != 0) {
RamdiskDevicePath = (MEMORY_DEVICE_PATH*)DuplicateDevicePath ((EFI_DEVICE_PATH_PROTOCOL*) &MemoryDevicePathTemplate);
RamdiskDevicePath->Node1.StartingAddress = (EFI_PHYSICAL_ADDRESS)(UINTN) Ramdisk;
RamdiskDevicePath->Node1.EndingAddress = ((EFI_PHYSICAL_ADDRESS)(UINTN) Ramdisk) + RamdiskSize;
}
Status = BdsBootLinuxFdt (
(EFI_DEVICE_PATH_PROTOCOL *) &KernelDevicePath,
(EFI_DEVICE_PATH_PROTOCOL *) RamdiskDevicePath,
KernelArgs
);
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_ERROR, "Couldn't Boot Linux: %d\n", Status));
return EFI_DEVICE_ERROR;
}
if (RamdiskDevicePath) {
FreePool (RamdiskDevicePath);
}
// If we got here we do a confused face because BootLinuxFdt returned,
// reporting success.
DEBUG ((EFI_D_ERROR, "WARNING: BdsBootLinuxFdt returned EFI_SUCCESS.\n"));
return EFI_SUCCESS;
}
EFI_STATUS
BootOptionStart (
IN BDS_LOAD_OPTION *BootOption
)
{
EFI_STATUS Status;
UINT32 LoaderType;
ARM_BDS_LOADER_OPTIONAL_DATA* OptionalData;
ARM_BDS_LINUX_ARGUMENTS* LinuxArguments;
UINTN CmdLineSize;
UINTN InitrdSize;
EFI_DEVICE_PATH* Initrd;
UINT16 LoadOptionIndexSize;
if (IS_ARM_BDS_BOOTENTRY (BootOption)) {
Status = EFI_UNSUPPORTED;
OptionalData = BootOption->OptionalData;
LoaderType = ReadUnaligned32 ((CONST UINT32*)&OptionalData->Header.LoaderType);
if (LoaderType == BDS_LOADER_EFI_APPLICATION) {
if ((BootOption->Attributes & LOAD_OPTION_CATEGORY) == LOAD_OPTION_CATEGORY_APP) {
// Need to connect every drivers to ensure no dependencies are missing for the application
BdsConnectAllDrivers ();
}
Status = BdsStartEfiApplication (gImageHandle, BootOption->FilePathList, 0, NULL);
} else if (LoaderType == BDS_LOADER_KERNEL_LINUX_ATAG) {
LinuxArguments = &(OptionalData->Arguments.LinuxArguments);
CmdLineSize = ReadUnaligned16 ((CONST UINT16*)&LinuxArguments->CmdLineSize);
InitrdSize = ReadUnaligned16 ((CONST UINT16*)&LinuxArguments->InitrdSize);
if (InitrdSize > 0) {
Initrd = GetAlignedDevicePath ((EFI_DEVICE_PATH*)((UINTN)(LinuxArguments + 1) + CmdLineSize));
} else {
Initrd = NULL;
}
Status = BdsBootLinuxAtag (BootOption->FilePathList,
Initrd, // Initrd
(CHAR8*)(LinuxArguments + 1)); // CmdLine
} else if (LoaderType == BDS_LOADER_KERNEL_LINUX_FDT) {
LinuxArguments = &(OptionalData->Arguments.LinuxArguments);
CmdLineSize = ReadUnaligned16 ((CONST UINT16*)&LinuxArguments->CmdLineSize);
InitrdSize = ReadUnaligned16 ((CONST UINT16*)&LinuxArguments->InitrdSize);
if (InitrdSize > 0) {
Initrd = GetAlignedDevicePath ((EFI_DEVICE_PATH*)((UINTN)(LinuxArguments + 1) + CmdLineSize));
} else {
Initrd = NULL;
}
Status = BdsBootLinuxFdt (
BootOption->FilePathList,
Initrd,
(CHAR8*)(LinuxArguments + 1)
);
}
} else {
// Connect all the drivers if the EFI Application is not a EFI OS Loader
if ((BootOption->Attributes & LOAD_OPTION_CATEGORY) == LOAD_OPTION_CATEGORY_APP) {
BdsConnectAllDrivers ();
}
// Set BootCurrent variable
LoadOptionIndexSize = sizeof(UINT16);
gRT->SetVariable (L"BootCurrent", &gEfiGlobalVariableGuid,
EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
LoadOptionIndexSize, &(BootOption->LoadOptionIndex));
Status = BdsStartEfiApplication (gImageHandle, BootOption->FilePathList, BootOption->OptionalDataSize, BootOption->OptionalData);
// Clear BootCurrent variable
LoadOptionIndexSize = sizeof(UINT16);
gRT->SetVariable (L"BootCurrent", &gEfiGlobalVariableGuid,
EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
0, NULL);
}
return Status;
}
