UEFI - ImageLoad不起作用 - 錯誤=未找到

我試圖從另一個應用程序加載MyHelloWorld應用程序。但是從ImageLoad函數中找不到錯誤，儘管路徑沒問題。UEFI - ImageLoad不起作用 - 錯誤=未找到

MyHelloWorld.efi位於「fsnt0：> project1> MyHelloWorld.efi」。

我錯過了什麼，它沒有找到應用程序？

的應用程序在運行UDK2010 - NT32（開發工具包）

代碼：

/** @file 
    Brief Description of UEFI MyHelloWorld 
    Detailed Description of UEFI MyHelloWorld 
    Copyright for UEFI MyHelloWorld 
    License for UEFI MyHelloWorld 
**/ 

#include <Uefi.h> 
#include <Base.h> 
#include <Protocol/BlockIo.h> 
#include <Protocol/DevicePath.h> 
#include <Protocol/LoadedImage.h> 
#include <Library/UefiApplicationEntryPoint.h> 
#include <Library/UefiLib.h> 
#include <Library/DevicePathLib.h> 

//#define EFI_BLOCK_IO_PROTOCOL_GUID {0x964e5b21,0x6459,0x11d2,0x8e,0x39,0x00,0xa0,0xc9,0x69,0x72,0x3b} 
//static EFI_GUID gEfiBlockIoProtocolGuid = EFI_BLOCK_IO_PROTOCOL_GUID; 

EFI_STATUS Status; 
EFI_SYSTEM_TABLE *gST; 
EFI_BOOT_SERVICES *gBS; 
EFI_RUNTIME_SERVICES *gRT; 

/** 
    as the real entry point for the application. 

    @param[in] ImageHandle The firmware allocated handle for the EFI image. 
    @param[in] SystemTable A pointer to the EFI System Table. 

    @retval EFI_SUCCESS  The entry point is executed successfully. 
    @retval other    Some error occurs when executing this entry point. 

**/ 
EFI_STATUS 
EFIAPI 
UefiMain (
    IN EFI_HANDLE  mBdsImageHandle, 
    IN EFI_SYSTEM_TABLE *SystemTable 
) 
{ 
    UINTN NumberFileSystemHandles; 
    EFI_HANDLE *FileSystemHandles; 
    UINTN Index; 
    EFI_BLOCK_IO* BlkIo; 
    EFI_DEVICE_PATH_PROTOCOL *FilePath; 
    EFI_HANDLE ImageHandle = NULL; 
    EFI_LOADED_IMAGE_PROTOCOL* ImageInfo; 

    gST = SystemTable; 
    gBS = gST -> BootServices; 
    gRT = gST -> RuntimeServices; 

    gBS->LocateHandleBuffer(ByProtocol, 
          &gEfiBlockIoProtocolGuid, 
          NULL, 
          &NumberFileSystemHandles, 
          &FileSystemHandles); 

    Print(L"after LocateHandleBuffer \n"); 
    for(Index = 0; Index<NumberFileSystemHandles; ++Index) { 
     Status = gBS -> HandleProtocol(FileSystemHandles[Index], 
             &gEfiBlockIoProtocolGuid, 
             (VOID**) &BlkIo); 

     Print(L"after HandleProtocol %x - %r\n",FileSystemHandles[Index], Status); 
     if(!EFI_ERROR(Status)) { 
     Print(L"after EFI_ERROR(Status) \n"); 
      if(!BlkIo->Media->RemovableMedia || BlkIo->Media->RemovableMedia) { 
       FilePath = FileDevicePath(FileSystemHandles[Index], 
              L"\\project1\\MyHelloWorld.efi"); 
       Print(L"after FileDevicePath - %x - %x\n",FilePath->Type,FilePath->SubType); 
       Status = gBS -> LoadImage(FALSE, mBdsImageHandle, FilePath, NULL, 0, &ImageHandle); 
       Print(L"after LoadImage - %d - %d - %r \n", ImageHandle, EFI_ERROR(Status), Status); 
       if(!EFI_ERROR(Status)) { 
        Status = gBS -> HandleProtocol(ImageHandle, &gEfiLoadedImageProtocolGuid, 
                (VOID **) &ImageInfo); 
        Print(L"after HandleProtocol \n"); 
        if(!EFI_ERROR(Status)) { 
         if(ImageInfo->ImageCodeType == EfiLoaderCode) { 
          gBS->FreePool(FilePath); 
         } 
        } 
       } 
       Status = gBS -> StartImage(ImageHandle, NULL, NULL); 
       Print(L"after StartImage - %d\n" , EFI_ERROR(Status)); 
       continue; 
      } 
     }  
    } 
    return EFI_SUCCESS; 
}

非常感謝您的幫助！

來源

2013-08-03 GalDude33

-1

LocateHandleBuffer（）填充在第四個參數與字節，不是計數處理計數。

來源

2013-10-30 17:47:22

不，它不是字節數。 UEFI規範明確指出它是第5個參數中返回的句柄數。

來源

2015-02-22 01:41:38 fpmurphy1

UEFI - ImageLoad不起作用 - 錯誤=未找到

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