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/** @file
The entry of the embedded BDS. This BDS does not follow the Boot Manager requirements
of the UEFI specification as it is designed to implement an embedded systmes
propriatary boot scheme.
This template assume a DXE driver produces a SerialIo protocol not using the EFI
driver module and it will attempt to connect a console on top of this.
Copyright (c) 2009 Apple, Inc. All rights reserved.
Portions copyright (c) 2008-2009, Apple Inc. All rights reserved.
This document is the property of Apple, Inc.
It is considered confidential and proprietary.
This document may not be reproduced or transmitted in any form,
in whole or in part, without the express written permission of
Apple, Inc.
**/
#include "BdsEntry.h"
EFI_STATUS
FindApplicationMatchingUiSection (
IN CHAR16 *UiString,
OUT EFI_HANDLE *FvHandle,
OUT EFI_GUID *NameGuid
)
{
EFI_STATUS Status;
EFI_STATUS NextStatus;
UINTN NoHandles;
EFI_HANDLE *Buffer;
UINTN Index;
EFI_FV_FILETYPE FileType;
EFI_FIRMWARE_VOLUME2_PROTOCOL *Fv;
VOID *Key;
EFI_FV_FILE_ATTRIBUTES Attributes;
UINTN Size;
UINTN UiStringLen;
CHAR16 *UiSection;
UINT32 Authentication;
UiStringLen = 0;
if (UiString != NULL) {
DEBUG ((DEBUG_ERROR, "UiString %s\n", UiString));
UiStringLen = StrLen (UiString);
}
Status = gBS->LocateHandleBuffer (ByProtocol, &gEfiFirmwareVolume2ProtocolGuid, NULL, &NoHandles, &Buffer);
if (!EFI_ERROR (Status)) {
for (Index = 0; Index < NoHandles; Index++) {
Status = gBS->HandleProtocol (Buffer[Index], &gEfiFirmwareVolume2ProtocolGuid, (VOID **)&Fv);
if (!EFI_ERROR (Status)) {
Key = AllocatePool (Fv->KeySize);
ASSERT (Key != NULL);
ZeroMem (Key, Fv->KeySize);
FileType = EFI_FV_FILETYPE_APPLICATION;
do {
NextStatus = Fv->GetNextFile (Fv, Key, &FileType, NameGuid, &Attributes, &Size);
if (!EFI_ERROR (NextStatus)) {
if (UiString == NULL) {
//
// If UiString is NULL match first application we find.
//
*FvHandle = Buffer[Index];
FreePool (Key);
return Status;
}
UiSection = NULL;
Status = Fv->ReadSection (
Fv,
NameGuid,
EFI_SECTION_USER_INTERFACE,
0,
(VOID **)&UiSection,
&Size,
&Authentication
);
if (!EFI_ERROR (Status)) {
if (StrnCmp (UiString, UiSection, UiStringLen) == 0) {
//
// We found a UiString match.
//
*FvHandle = Buffer[Index];
FreePool (Key);
FreePool (UiSection);
return Status;
}
FreePool (UiSection);
}
}
} while (!EFI_ERROR (NextStatus));
FreePool (Key);
}
}
FreePool (Buffer);
}
return EFI_NOT_FOUND;
}
EFI_DEVICE_PATH *
FvFileDevicePath (
IN EFI_HANDLE FvHandle,
IN EFI_GUID *NameGuid
)
{
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
MEDIA_FW_VOL_FILEPATH_DEVICE_PATH NewNode;
DevicePath = DevicePathFromHandle (FvHandle);
EfiInitializeFwVolDevicepathNode (&NewNode, NameGuid);
return AppendDevicePathNode (DevicePath, (EFI_DEVICE_PATH_PROTOCOL *)&NewNode);
}
EFI_STATUS
LoadPeCoffSectionFromFv (
IN EFI_HANDLE FvHandle,
IN EFI_GUID *NameGuid
)
{
EFI_STATUS Status;
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
EFI_HANDLE ImageHandle;
DevicePath = FvFileDevicePath (FvHandle, NameGuid);
Status = gBS->LoadImage (TRUE, gImageHandle, DevicePath, NULL, 0, &ImageHandle);
if (!EFI_ERROR (Status)) {
Status = gBS->StartImage (ImageHandle, NULL, NULL);
}
return Status;
}
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