diff options
Diffstat (limited to 'roms/edk2/EmbeddedPkg/Application/AndroidFastboot/Arm')
| -rw-r--r-- | roms/edk2/EmbeddedPkg/Application/AndroidFastboot/Arm/BootAndroidBootImg.c | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/roms/edk2/EmbeddedPkg/Application/AndroidFastboot/Arm/BootAndroidBootImg.c b/roms/edk2/EmbeddedPkg/Application/AndroidFastboot/Arm/BootAndroidBootImg.c new file mode 100644 index 000000000..fe05878b4 --- /dev/null +++ b/roms/edk2/EmbeddedPkg/Application/AndroidFastboot/Arm/BootAndroidBootImg.c @@ -0,0 +1,178 @@ +/** @file
+
+ Copyright (c) 2013-2015, ARM Ltd. All rights reserved.<BR>
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "AndroidFastbootApp.h"
+
+#include <Protocol/DevicePath.h>
+#include <Protocol/LoadedImage.h>
+
+#include <Library/DevicePathLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/UefiLib.h>
+
+// Device Path representing an image in memory
+#pragma pack(1)
+typedef struct {
+ MEMMAP_DEVICE_PATH Node1;
+ EFI_DEVICE_PATH_PROTOCOL End;
+} MEMORY_DEVICE_PATH;
+#pragma pack()
+
+STATIC CONST MEMORY_DEVICE_PATH MemoryDevicePathTemplate =
+{
+ {
+ {
+ HARDWARE_DEVICE_PATH,
+ HW_MEMMAP_DP,
+ {
+ (UINT8)(sizeof (MEMMAP_DEVICE_PATH)),
+ (UINT8)((sizeof (MEMMAP_DEVICE_PATH)) >> 8),
+ },
+ }, // Header
+ 0, // StartingAddress (set at runtime)
+ 0 // EndingAddress (set at runtime)
+ }, // Node1
+ {
+ END_DEVICE_PATH_TYPE,
+ END_ENTIRE_DEVICE_PATH_SUBTYPE,
+ { sizeof (EFI_DEVICE_PATH_PROTOCOL), 0 }
+ } // End
+};
+
+
+/**
+ Start an EFI Application from a Device Path
+
+ @param ParentImageHandle Handle of the calling image
+ @param DevicePath Location of the EFI Application
+
+ @retval EFI_SUCCESS All drivers have been connected
+ @retval EFI_NOT_FOUND The Linux kernel Device Path has not been found
+ @retval EFI_OUT_OF_RESOURCES There is not enough resource memory to store the matching results.
+
+**/
+STATIC
+EFI_STATUS
+StartEfiApplication (
+ IN EFI_HANDLE ParentImageHandle,
+ IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,
+ IN UINTN LoadOptionsSize,
+ IN VOID* LoadOptions
+ )
+{
+ EFI_STATUS Status;
+ EFI_HANDLE ImageHandle;
+ EFI_LOADED_IMAGE_PROTOCOL* LoadedImage;
+
+ // Load the image from the device path with Boot Services function
+ Status = gBS->LoadImage (TRUE, ParentImageHandle, DevicePath, NULL, 0,
+ &ImageHandle);
+ if (EFI_ERROR (Status)) {
+ //
+ // With EFI_SECURITY_VIOLATION retval, the Image was loaded and an ImageHandle was created
+ // with a valid EFI_LOADED_IMAGE_PROTOCOL, but the image can not be started right now.
+ // If the caller doesn't have the option to defer the execution of an image, we should
+ // unload image for the EFI_SECURITY_VIOLATION to avoid resource leak.
+ //
+ if (Status == EFI_SECURITY_VIOLATION) {
+ gBS->UnloadImage (ImageHandle);
+ }
+ return Status;
+ }
+
+ // Passed LoadOptions to the EFI Application
+ if (LoadOptionsSize != 0) {
+ Status = gBS->HandleProtocol (ImageHandle, &gEfiLoadedImageProtocolGuid,
+ (VOID **) &LoadedImage);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ LoadedImage->LoadOptionsSize = LoadOptionsSize;
+ LoadedImage->LoadOptions = LoadOptions;
+ }
+
+ // Before calling the image, enable the Watchdog Timer for the 5 Minute period
+ gBS->SetWatchdogTimer (5 * 60, 0x0000, 0x00, NULL);
+ // Start the image
+ Status = gBS->StartImage (ImageHandle, NULL, NULL);
+ // Clear the Watchdog Timer after the image returns
+ gBS->SetWatchdogTimer (0x0000, 0x0000, 0x0000, NULL);
+
+ return Status;
+}
+
+EFI_STATUS
+BootAndroidBootImg (
+ IN UINTN BufferSize,
+ IN VOID *Buffer
+ )
+{
+ EFI_STATUS Status;
+ CHAR8 KernelArgs[ANDROID_BOOTIMG_KERNEL_ARGS_SIZE];
+ VOID *Kernel;
+ UINTN KernelSize;
+ VOID *Ramdisk;
+ UINTN RamdiskSize;
+ MEMORY_DEVICE_PATH KernelDevicePath;
+ CHAR16 *LoadOptions, *NewLoadOptions;
+
+ 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;
+
+ // Initialize Linux command line
+ LoadOptions = CatSPrint (NULL, L"%a", KernelArgs);
+ if (LoadOptions == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ if (RamdiskSize != 0) {
+ NewLoadOptions = CatSPrint (LoadOptions, L" initrd=0x%x,0x%x",
+ (UINTN)Ramdisk, RamdiskSize);
+ FreePool (LoadOptions);
+ if (NewLoadOptions == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+ LoadOptions = NewLoadOptions;
+ }
+
+ Status = StartEfiApplication (gImageHandle,
+ (EFI_DEVICE_PATH_PROTOCOL *) &KernelDevicePath,
+ StrSize (LoadOptions),
+ LoadOptions);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((EFI_D_ERROR, "Couldn't Boot Linux: %d\n", Status));
+ Status = EFI_DEVICE_ERROR;
+ goto FreeLoadOptions;
+ }
+
+ // 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;
+
+FreeLoadOptions:
+ FreePool (LoadOptions);
+ return Status;
+}
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