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audk
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1. Add usb LUD support in BDS 

2. Enhance the orignal enumeration logic to check whether a internal shell boot option is valid. 

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5522 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
qhuang8 2008-07-18 10:02:14 +00:00
parent 49f977a048
commit a475bfa225
1 changed files with 36 additions and 6 deletions
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38
MdeModulePkg/Library/GenericBdsLib/BdsBoot.c
View File

@ -182,6 +182,11 @@ BdsLibBootViaBootOption (
//
InitializeListHead (&TempBootLists);
BdsLibRegisterNewOption (&TempBootLists, DevicePath, L"EFI Internal Shell", L"BootOrder");
//
// free the temporary device path created by BdsLibUpdateFvFileDevicePath()
//
gBS->FreePool (DevicePath);
DevicePath = Option->DevicePath;
}
//
@ -1515,9 +1520,19 @@ BdsGetBootTypeFromDevicePath (
break;
case MESSAGING_DEVICE_PATH:
//
// if the device path not only point to driver device, it is not a messaging device path.
// Get the last device path node
//
LastDeviceNode = NextDevicePathNode (TempDevicePath);
if (DevicePathSubType(LastDeviceNode) == MSG_DEVICE_LOGICAL_UNIT_DP) {
//
// if the next node type is Device Logical Unit, which specify the Logical Unit Number (LUN),
// skit it
//
LastDeviceNode = NextDevicePathNode (LastDeviceNode);
}
//
// if the device path not only point to driver device, it is not a messaging device path,
//
if (!IsDevicePathEndType (LastDeviceNode)) {
break;
}
@ -1615,11 +1630,22 @@ BdsLibIsValidEFIBootOptDevicePath (
}
//
// If the boot option point to a internal Shell, it is a valid EFI boot option,
// and assume it is ready to boot now
// Check if it's a valid boot option for internal Shell
//
if (EfiGetNameGuidFromFwVolDevicePathNode ((MEDIA_FW_VOL_FILEPATH_DEVICE_PATH *) LastDeviceNode) != NULL) {
return TRUE;
//
// If the boot option point to Internal FV shell, make sure it is valid
//
TempDevicePath = DevPath;
Status = BdsLibUpdateFvFileDevicePath (&TempDevicePath, &gEfiShellFileGuid);
if (Status == EFI_ALREADY_STARTED) {
return TRUE;
} else {
if (Status == EFI_SUCCESS) {
gBS->FreePool (TempDevicePath);
}
return FALSE;
}
}
//
@ -1825,6 +1851,7 @@ BdsLibUpdateFvFileDevicePath (
// Second, if fail to find, try to enumerate all FV
//
if (!FindFvFile) {
FvHandleBuffer = NULL;
gBS->LocateHandleBuffer (
ByProtocol,
&gEfiFirmwareVolume2ProtocolGuid,
@ -1858,6 +1885,9 @@ BdsLibUpdateFvFileDevicePath (
FoundFvHandle = FvHandleBuffer[Index];
break;
}
if (FvHandleBuffer !=NULL ) {
FreePool (FvHandleBuffer);
}
}
if (FindFvFile) {