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MdeModulePkg: Process Sys Prep load options in BdsDxe driver.

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Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>
Reviewed-by: Eric Dong <eric.dong@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17403 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Ruiyu Ni
2015-05-11 06:33:45 +00:00
committed by niruiyu
parent 573b8a86d0
commit 1634214dbb
8 changed files with 1160 additions and 1027 deletions
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159
MdeModulePkg/Library/UefiBootManagerLib/BmMisc.c
View File

@@ -120,146 +120,6 @@ BmMatchDevicePaths (
return FALSE;
}
/**
Get the headers (dos, image, optional header) from an image
@param Device SimpleFileSystem device handle
@param FileName File name for the image
@param DosHeader Pointer to dos header
@param Hdr The buffer in which to return the PE32, PE32+, or TE header.
@retval EFI_SUCCESS Successfully get the machine type.
@retval EFI_NOT_FOUND The file is not found.
@retval EFI_LOAD_ERROR File is not a valid image file.
**/
EFI_STATUS
BmGetImageHeader (
IN EFI_HANDLE Device,
IN CHAR16 *FileName,
OUT EFI_IMAGE_DOS_HEADER *DosHeader,
OUT EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Hdr
)
{
EFI_STATUS Status;
EFI_SIMPLE_FILE_SYSTEM_PROTOCOL *Volume;
EFI_FILE_HANDLE Root;
EFI_FILE_HANDLE ThisFile;
UINTN BufferSize;
UINT64 FileSize;
EFI_FILE_INFO *Info;
Root = NULL;
ThisFile = NULL;
//
// Handle the file system interface to the device
//
Status = gBS->HandleProtocol (
Device,
&gEfiSimpleFileSystemProtocolGuid,
(VOID *) &Volume
);
if (EFI_ERROR (Status)) {
goto Done;
}
Status = Volume->OpenVolume (
Volume,
&Root
);
if (EFI_ERROR (Status)) {
Root = NULL;
goto Done;
}
ASSERT (Root != NULL);
Status = Root->Open (Root, &ThisFile, FileName, EFI_FILE_MODE_READ, 0);
if (EFI_ERROR (Status)) {
goto Done;
}
ASSERT (ThisFile != NULL);
//
// Get file size
//
BufferSize = SIZE_OF_EFI_FILE_INFO + 200;
do {
Info = NULL;
Status = gBS->AllocatePool (EfiBootServicesData, BufferSize, (VOID **) &Info);
if (EFI_ERROR (Status)) {
goto Done;
}
Status = ThisFile->GetInfo (
ThisFile,
&gEfiFileInfoGuid,
&BufferSize,
Info
);
if (!EFI_ERROR (Status)) {
break;
}
if (Status != EFI_BUFFER_TOO_SMALL) {
FreePool (Info);
goto Done;
}
FreePool (Info);
} while (TRUE);
FileSize = Info->FileSize;
FreePool (Info);
//
// Read dos header
//
BufferSize = sizeof (EFI_IMAGE_DOS_HEADER);
Status = ThisFile->Read (ThisFile, &BufferSize, DosHeader);
if (EFI_ERROR (Status) ||
BufferSize < sizeof (EFI_IMAGE_DOS_HEADER) ||
FileSize <= DosHeader->e_lfanew ||
DosHeader->e_magic != EFI_IMAGE_DOS_SIGNATURE) {
Status = EFI_LOAD_ERROR;
goto Done;
}
//
// Move to PE signature
//
Status = ThisFile->SetPosition (ThisFile, DosHeader->e_lfanew);
if (EFI_ERROR (Status)) {
Status = EFI_LOAD_ERROR;
goto Done;
}
//
// Read and check PE signature
//
BufferSize = sizeof (EFI_IMAGE_OPTIONAL_HEADER_UNION);
Status = ThisFile->Read (ThisFile, &BufferSize, Hdr.Pe32);
if (EFI_ERROR (Status) ||
BufferSize < sizeof (EFI_IMAGE_OPTIONAL_HEADER_UNION) ||
Hdr.Pe32->Signature != EFI_IMAGE_NT_SIGNATURE) {
Status = EFI_LOAD_ERROR;
goto Done;
}
//
// Check PE32 or PE32+ magic
//
if (Hdr.Pe32->OptionalHeader.Magic != EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC &&
Hdr.Pe32->OptionalHeader.Magic != EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC) {
Status = EFI_LOAD_ERROR;
goto Done;
}
Done:
if (ThisFile != NULL) {
ThisFile->Close (ThisFile);
}
if (Root != NULL) {
Root->Close (Root);
}
return Status;
}
/**
This routine adjust the memory information for different memory type and
save them into the variables for next boot.
@@ -505,3 +365,22 @@ BmSetVariableAndReportStatusCodeOnError (
return Status;
}
/**
Print the device path info.
@param DevicePath The device path need to print.
**/
VOID
BmPrintDp (
EFI_DEVICE_PATH_PROTOCOL *DevicePath
)
{
CHAR16 *Str;
Str = ConvertDevicePathToText (DevicePath, FALSE, FALSE);
DEBUG ((EFI_D_INFO, "%s", Str));
if (Str != NULL) {
FreePool (Str);
}
}