34e0bceabf
When booting the kernel via Fastboot, invoke the kernel image directly rather than passing it to the LinuxLoader app. This requires the kernel image to be built with UEFI stub support. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Tested-by: Ryan Harkin <ryan.harkin@linaro.org> Reviewed-by: Ryan Harkin <ryan.harkin@linaro.org>
122 lines
3.5 KiB
C
122 lines
3.5 KiB
C
/** @file
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Copyright (c) 2013-2015, ARM Ltd. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include "AndroidFastbootApp.h"
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#include <Protocol/DevicePath.h>
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#include <Library/BdsLib.h>
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#include <Library/DevicePathLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/UefiLib.h>
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// Device Path representing an image in memory
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#pragma pack(1)
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typedef struct {
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MEMMAP_DEVICE_PATH Node1;
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EFI_DEVICE_PATH_PROTOCOL End;
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} MEMORY_DEVICE_PATH;
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#pragma pack()
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STATIC CONST MEMORY_DEVICE_PATH MemoryDevicePathTemplate =
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{
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{
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{
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HARDWARE_DEVICE_PATH,
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HW_MEMMAP_DP,
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{
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(UINT8)(sizeof (MEMMAP_DEVICE_PATH)),
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(UINT8)((sizeof (MEMMAP_DEVICE_PATH)) >> 8),
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},
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}, // Header
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0, // StartingAddress (set at runtime)
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0 // EndingAddress (set at runtime)
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}, // Node1
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{
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END_DEVICE_PATH_TYPE,
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END_ENTIRE_DEVICE_PATH_SUBTYPE,
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{ sizeof (EFI_DEVICE_PATH_PROTOCOL), 0 }
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} // End
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};
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EFI_STATUS
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BootAndroidBootImg (
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IN UINTN BufferSize,
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IN VOID *Buffer
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)
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{
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EFI_STATUS Status;
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CHAR8 KernelArgs[BOOTIMG_KERNEL_ARGS_SIZE];
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VOID *Kernel;
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UINTN KernelSize;
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VOID *Ramdisk;
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UINTN RamdiskSize;
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MEMORY_DEVICE_PATH KernelDevicePath;
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CHAR16 *LoadOptions, *NewLoadOptions;
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Status = ParseAndroidBootImg (
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Buffer,
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&Kernel,
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&KernelSize,
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&Ramdisk,
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&RamdiskSize,
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KernelArgs
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);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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KernelDevicePath = MemoryDevicePathTemplate;
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// Have to cast to UINTN before casting to EFI_PHYSICAL_ADDRESS in order to
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// appease GCC.
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KernelDevicePath.Node1.StartingAddress = (EFI_PHYSICAL_ADDRESS)(UINTN) Kernel;
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KernelDevicePath.Node1.EndingAddress = (EFI_PHYSICAL_ADDRESS)(UINTN) Kernel + KernelSize;
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// Initialize Linux command line
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LoadOptions = CatSPrint (NULL, L"%a", KernelArgs);
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if (LoadOptions == NULL) {
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return EFI_OUT_OF_RESOURCES;
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}
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if (RamdiskSize != 0) {
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NewLoadOptions = CatSPrint (LoadOptions, L" initrd=0x%x,0x%x",
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(UINTN)Ramdisk, RamdiskSize);
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FreePool (LoadOptions);
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if (NewLoadOptions == NULL) {
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return EFI_OUT_OF_RESOURCES;
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}
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LoadOptions = NewLoadOptions;
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}
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Status = BdsStartEfiApplication (gImageHandle,
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(EFI_DEVICE_PATH_PROTOCOL *) &KernelDevicePath,
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StrSize (LoadOptions),
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LoadOptions);
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if (EFI_ERROR (Status)) {
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DEBUG ((EFI_D_ERROR, "Couldn't Boot Linux: %d\n", Status));
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Status = EFI_DEVICE_ERROR;
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goto FreeLoadOptions;
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}
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// If we got here we do a confused face because BootLinuxFdt returned,
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// reporting success.
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DEBUG ((EFI_D_ERROR, "WARNING: BdsBootLinuxFdt returned EFI_SUCCESS.\n"));
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return EFI_SUCCESS;
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FreeLoadOptions:
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FreePool (LoadOptions);
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return Status;
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}
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