mirror of https://github.com/acidanthera/audk.git
167 lines
5.0 KiB
C
167 lines
5.0 KiB
C
/** @file
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*
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* Copyright (c) 2011-2015, ARM Limited. All rights reserved.
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*
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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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*
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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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**/
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#ifndef __LINUX_LOADER_H__
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#define __LINUX_LOADER_H__
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#include <Library/BdsLib.h>
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#include <Library/DebugLib.h>
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#include <Library/HiiLib.h>
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#include <Library/MemoryAllocationLib.h>
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#include <Library/PerformanceLib.h>
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#include <Library/PrintLib.h>
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#include <Library/ShellLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/UefiLib.h>
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#include <Protocol/EfiShellParameters.h>
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#include <Protocol/EfiShell.h>
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#include <libfdt.h>
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//
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// Definitions
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//
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#define MAX_MSG_LEN 80
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#define LINUX_UIMAGE_SIGNATURE 0x56190527
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#define LINUX_KERNEL_MAX_OFFSET (SystemMemoryBase + PcdGet32(PcdArmLinuxKernelMaxOffset))
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#define LINUX_ATAG_MAX_OFFSET (SystemMemoryBase + PcdGet32(PcdArmLinuxAtagMaxOffset))
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#define LINUX_FDT_MAX_OFFSET (SystemMemoryBase + PcdGet32(PcdArmLinuxFdtMaxOffset))
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#define ARM_FDT_MACHINE_TYPE 0xFFFFFFFF
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// Additional size that could be used for FDT entries added by the UEFI OS Loader
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// Estimation based on: EDID (300bytes) + bootargs (200bytes) + initrd region (20bytes)
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// + system memory region (20bytes) + mp_core entries (200 bytes)
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#define FDT_ADDITIONAL_ENTRIES_SIZE 0x300
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//
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// Global variables
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//
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extern CONST EFI_GUID mLinuxLoaderHiiGuid;
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extern EFI_HANDLE mLinuxLoaderHiiHandle;
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//
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// Local Types
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//
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typedef struct _SYSTEM_MEMORY_RESOURCE {
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LIST_ENTRY Link; // This attribute must be the first entry of this structure (to avoid pointer computation)
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EFI_PHYSICAL_ADDRESS PhysicalStart;
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UINT64 ResourceLength;
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} SYSTEM_MEMORY_RESOURCE;
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typedef VOID (*LINUX_KERNEL)(UINT32 Zero, UINT32 Arch, UINTN ParametersBase);
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//
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// Functions
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//
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EFI_STATUS
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PrintHii (
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IN CONST CHAR8 *Language OPTIONAL,
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IN CONST EFI_STRING_ID HiiFormatStringId,
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...
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);
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VOID
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PrintHelp (
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IN CONST CHAR8 *Language OPTIONAL
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);
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EFI_STATUS
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ProcessShellParameters (
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OUT CHAR16 **KernelPath,
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OUT CHAR16 **FdtPath,
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OUT CHAR16 **InitrdPath,
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OUT CHAR16 **LinuxCommandLine,
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OUT UINTN *AtagMachineType
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);
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EFI_STATUS
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ProcessAppCommandLine (
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OUT CHAR16 **KernelTextDevicePath,
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OUT CHAR16 **FdtTextDevicePath,
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OUT CHAR16 **InitrdTextDevicePath,
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OUT CHAR16 **LinuxCommandLine,
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OUT UINTN *AtagMachineType
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);
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VOID
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PrintPerformance (
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VOID
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);
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EFI_STATUS
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GetSystemMemoryResources (
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IN LIST_ENTRY *ResourceList
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);
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EFI_STATUS
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PrepareFdt (
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IN EFI_PHYSICAL_ADDRESS SystemMemoryBase,
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IN CONST CHAR8* CommandLineArguments,
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IN EFI_PHYSICAL_ADDRESS InitrdImage,
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IN UINTN InitrdImageSize,
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IN OUT EFI_PHYSICAL_ADDRESS *FdtBlobBase,
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IN OUT UINTN *FdtBlobSize
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);
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/**
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Start a Linux kernel from a Device Path
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@param SystemMemoryBase Base of the system memory
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@param LinuxKernel Device Path to the Linux Kernel
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@param Parameters Linux kernel arguments
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@param Fdt Device Path to the Flat Device Tree
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@param MachineType ARM machine type value
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@retval EFI_SUCCESS All drivers have been connected
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@retval EFI_NOT_FOUND The Linux kernel Device Path has not been found
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@retval EFI_OUT_OF_RESOURCES There is not enough resource memory to store the matching results.
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@retval RETURN_UNSUPPORTED ATAG is not support by this architecture
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**/
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EFI_STATUS
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BootLinuxAtag (
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IN EFI_PHYSICAL_ADDRESS SystemMemoryBase,
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IN EFI_DEVICE_PATH_PROTOCOL* LinuxKernelDevicePath,
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IN EFI_DEVICE_PATH_PROTOCOL* InitrdDevicePath,
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IN CONST CHAR8* CommandLineArguments,
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IN UINTN MachineType
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);
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/**
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Start a Linux kernel from a Device Path
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@param[in] LinuxKernelDevicePath Device Path to the Linux Kernel
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@param[in] InitrdDevicePath Device Path to the Initrd
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@param[in] Arguments Linux kernel arguments
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@retval EFI_SUCCESS All drivers have been connected
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@retval EFI_NOT_FOUND The Linux kernel Device Path has not been found
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@retval EFI_OUT_OF_RESOURCES There is not enough resource memory to store the matching results.
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**/
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EFI_STATUS
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BootLinuxFdt (
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IN EFI_PHYSICAL_ADDRESS SystemMemoryBase,
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IN EFI_DEVICE_PATH_PROTOCOL* LinuxKernelDevicePath,
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IN EFI_DEVICE_PATH_PROTOCOL* InitrdDevicePath,
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IN EFI_DEVICE_PATH_PROTOCOL* FdtDevicePath,
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IN CONST CHAR8* Arguments
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);
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#endif /* __LINUX_LOADER_H__ */
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