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Remove BdsLibConnectConsoleVariableWithoutDispatch() and enhance BdsLibConnectDevicePath() to only call gDS->Dispatch() when the current TPL is TPL_APPLICATION 

Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>
Reviewed-by: Chao B Zhang <chao.b.zhang@intel.com>

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@14211 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
niruiyu 2013-03-19 07:10:51 +00:00
parent 9fc9446897
commit 37406c34c3
4 changed files with 90 additions and 218 deletions
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26
IntelFrameworkModulePkg/Include/Library/GenericBdsLib.h
View File

@ -4,7 +4,7 @@
2) BDS boot device connect interface.
3) BDS Misc interfaces for mainting boot variable, ouput string.
Copyright (c) 2004 - 2012, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2004 - 2013, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials are licensed and made available under
the terms and conditions of the BSD License that accompanies this distribution.
The full text of the license may be found at
@ -531,30 +531,6 @@ BdsLibConnectConsoleVariable (
IN CHAR16 *ConVarName
);
/**
Connect the console device base on the variable ConVarName, if
device path of the ConVarName is multi-instance device path and
anyone of the instances is connected success, then this function
will return success.
Dispatch service is not called when the handle associate with one
device path node can not be created successfully. Here no driver
dependency is assumed exist, so need not to call this service.
@param ConVarName Console related variable name, ConIn, ConOut,
ErrOut.
@retval EFI_NOT_FOUND There is not any console devices connected
success
@retval EFI_SUCCESS Success connect any one instance of the console
device path base on the variable ConVarName.
**/
EFI_STATUS
EFIAPI
BdsLibConnectConsoleVariableWithOutDispatch (
IN CHAR16 *ConVarName
);
//
// Bds device path related lib functions
//

49
IntelFrameworkModulePkg/Library/GenericBdsLib/BdsConnect.c
View File

@ -1,7 +1,7 @@
/** @file
BDS Lib functions which relate with connect the device
Copyright (c) 2004 - 2012, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2004 - 2013, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
@ -65,17 +65,14 @@ BdsLibGenericConnectAll (
BdsLibConnectAllConsoles ();
}
/**
This function will create all handles associate with every device
path node. If the handle associate with one device path node can not
be created successfully, Dispatch service which load the missing drivers
is called according to input parameter, since in some cases no driver
dependency is assumed exist, so may need not to call this service.
be created successfully, then still give chance to do the dispatch,
which load the missing drivers if possible.
@param DevicePathToConnect The device path which will be connected, it can be
a multi-instance device path
@param NeedDispatch Whether requires dispatch service during connection
@retval EFI_SUCCESS All handles associate with every device path node
have been created
@ -85,9 +82,9 @@ BdsLibGenericConnectAll (
**/
EFI_STATUS
ConnectDevicePathInternal (
IN EFI_DEVICE_PATH_PROTOCOL *DevicePathToConnect,
IN BOOLEAN NeedDispatch
EFIAPI
BdsLibConnectDevicePath (
IN EFI_DEVICE_PATH_PROTOCOL *DevicePathToConnect
)
{
EFI_STATUS Status;
@ -99,11 +96,14 @@ ConnectDevicePathInternal (
EFI_HANDLE Handle;
EFI_HANDLE PreviousHandle;
UINTN Size;
EFI_TPL CurrentTpl;
if (DevicePathToConnect == NULL) {
return EFI_SUCCESS;
}
CurrentTpl = EfiGetCurrentTpl ();
DevicePath = DuplicateDevicePath (DevicePathToConnect);
if (DevicePath == NULL) {
return EFI_OUT_OF_RESOURCES;
@ -152,7 +152,10 @@ ConnectDevicePathInternal (
// Status == EFI_SUCCESS means a driver was dispatched
// Status == EFI_NOT_FOUND means no new drivers were dispatched
//
if (NeedDispatch) {
if (CurrentTpl == TPL_APPLICATION) {
//
// Dispatch calls LoadImage/StartImage which cannot run at TPL > TPL_APPLICATION
//
Status = gDS->Dispatch ();
} else {
//
@ -199,32 +202,6 @@ ConnectDevicePathInternal (
return Status;
}
/**
This function will create all handles associate with every device
path node. If the handle associate with one device path node can not
be created successfully, then still give chance to do the dispatch,
which load the missing drivers if possible.
@param DevicePathToConnect The device path which will be connected, it can be
a multi-instance device path
@retval EFI_SUCCESS All handles associate with every device path node
have been created
@retval EFI_OUT_OF_RESOURCES There is no resource to create new handles
@retval EFI_NOT_FOUND Create the handle associate with one device path
node failed
**/
EFI_STATUS
EFIAPI
BdsLibConnectDevicePath (
IN EFI_DEVICE_PATH_PROTOCOL *DevicePathToConnect
)
{
return ConnectDevicePathInternal(DevicePathToConnect, TRUE);
}
/**
This function will connect all current system handles recursively.

207
IntelFrameworkModulePkg/Library/GenericBdsLib/BdsConsole.c
View File

@ -181,114 +181,6 @@ UpdateSystemTableConsole (
return FALSE;
}
/**
Connect the console device base on the variable ConVarName, if
device path of the ConVarName is multi-instance device path and
anyone of the instances is connected success, this function will
return success.
Dispatch service is called basing on input when the handle associate
with one device path node can not be created successfully. Since in
some cases we assume driver dependency does not exist and do not
need to call this service.
@param ConVarName Console related variable name, ConIn, ConOut,
ErrOut.
@param NeedDispatch Whether requires dispatch service during connection
@retval EFI_NOT_FOUND There is not any console devices connected
success
@retval EFI_SUCCESS Success connect any one instance of the console
device path base on the variable ConVarName.
**/
EFI_STATUS
ConnectConsoleVariableInternal (
IN CHAR16 *ConVarName,
IN BOOLEAN NeedDispatch
)
{
EFI_STATUS Status;
EFI_DEVICE_PATH_PROTOCOL *StartDevicePath;
UINTN VariableSize;
EFI_DEVICE_PATH_PROTOCOL *Instance;
EFI_DEVICE_PATH_PROTOCOL *Next;
EFI_DEVICE_PATH_PROTOCOL *CopyOfDevicePath;
UINTN Size;
BOOLEAN DeviceExist;
Status = EFI_SUCCESS;
DeviceExist = FALSE;
//
// Check if the console variable exist
//
StartDevicePath = BdsLibGetVariableAndSize (
ConVarName,
&gEfiGlobalVariableGuid,
&VariableSize
);
if (StartDevicePath == NULL) {
return EFI_UNSUPPORTED;
}
CopyOfDevicePath = StartDevicePath;
do {
//
// Check every instance of the console variable
//
Instance = GetNextDevicePathInstance (&CopyOfDevicePath, &Size);
if (Instance == NULL) {
FreePool (StartDevicePath);
return EFI_UNSUPPORTED;
}
Next = Instance;
while (!IsDevicePathEndType (Next)) {
Next = NextDevicePathNode (Next);
}
SetDevicePathEndNode (Next);
//
// Connect the USB console
// USB console device path is a short-form device path that
// starts with the first element being a USB WWID
// or a USB Class device path
//
if ((DevicePathType (Instance) == MESSAGING_DEVICE_PATH) &&
((DevicePathSubType (Instance) == MSG_USB_CLASS_DP)
|| (DevicePathSubType (Instance) == MSG_USB_WWID_DP)
)) {
Status = BdsLibConnectUsbDevByShortFormDP (0xFF, Instance);
if (!EFI_ERROR (Status)) {
DeviceExist = TRUE;
}
} else {
//
// Connect the instance device path
//
Status = ConnectDevicePathInternal (Instance, NeedDispatch);
if (EFI_ERROR (Status)) {
//
// Delete the instance from the console varialbe
//
BdsLibUpdateConsoleVariable (ConVarName, NULL, Instance);
} else {
DeviceExist = TRUE;
}
}
FreePool(Instance);
} while (CopyOfDevicePath != NULL);
FreePool (StartDevicePath);
if (!DeviceExist) {
return EFI_NOT_FOUND;
}
return EFI_SUCCESS;
}
/**
This function update console variable based on ConVarName, it can
add or remove one specific console device path from the variable
@ -447,35 +339,86 @@ BdsLibConnectConsoleVariable (
IN CHAR16 *ConVarName
)
{
return ConnectConsoleVariableInternal(ConVarName, TRUE);
}
EFI_STATUS Status;
EFI_DEVICE_PATH_PROTOCOL *StartDevicePath;
UINTN VariableSize;
EFI_DEVICE_PATH_PROTOCOL *Instance;
EFI_DEVICE_PATH_PROTOCOL *Next;
EFI_DEVICE_PATH_PROTOCOL *CopyOfDevicePath;
UINTN Size;
BOOLEAN DeviceExist;
/**
Connect the console device base on the variable ConVarName, if
device path of the ConVarName is multi-instance device path and
anyone of the instances is connected success, then this function
will return success.
Dispatch service is not called when the handle associate with one
device path node can not be created successfully. Here no driver
dependency is assumed exist, so need not to call this service.
Status = EFI_SUCCESS;
DeviceExist = FALSE;
//
// Check if the console variable exist
//
StartDevicePath = BdsLibGetVariableAndSize (
ConVarName,
&gEfiGlobalVariableGuid,
&VariableSize
);
if (StartDevicePath == NULL) {
return EFI_UNSUPPORTED;
}
@param ConVarName Console related variable name, ConIn, ConOut,
ErrOut.
CopyOfDevicePath = StartDevicePath;
do {
//
// Check every instance of the console variable
//
Instance = GetNextDevicePathInstance (&CopyOfDevicePath, &Size);
if (Instance == NULL) {
FreePool (StartDevicePath);
return EFI_UNSUPPORTED;
}
Next = Instance;
while (!IsDevicePathEndType (Next)) {
Next = NextDevicePathNode (Next);
}
@retval EFI_NOT_FOUND There is not any console devices connected
success
@retval EFI_SUCCESS Success connect any one instance of the console
device path base on the variable ConVarName.
SetDevicePathEndNode (Next);
//
// Connect the USB console
// USB console device path is a short-form device path that
// starts with the first element being a USB WWID
// or a USB Class device path
//
if ((DevicePathType (Instance) == MESSAGING_DEVICE_PATH) &&
((DevicePathSubType (Instance) == MSG_USB_CLASS_DP)
|| (DevicePathSubType (Instance) == MSG_USB_WWID_DP)
)) {
Status = BdsLibConnectUsbDevByShortFormDP (0xFF, Instance);
if (!EFI_ERROR (Status)) {
DeviceExist = TRUE;
}
} else {
//
// Connect the instance device path
//
Status = BdsLibConnectDevicePath (Instance);
**/
EFI_STATUS
EFIAPI
BdsLibConnectConsoleVariableWithOutDispatch (
IN CHAR16 *ConVarName
)
{
return ConnectConsoleVariableInternal(ConVarName, FALSE);
if (EFI_ERROR (Status)) {
//
// Delete the instance from the console varialbe
//
BdsLibUpdateConsoleVariable (ConVarName, NULL, Instance);
} else {
DeviceExist = TRUE;
}
}
FreePool(Instance);
} while (CopyOfDevicePath != NULL);
FreePool (StartDevicePath);
if (!DeviceExist) {
return EFI_NOT_FOUND;
}
return EFI_SUCCESS;
}
/**

26
IntelFrameworkModulePkg/Library/GenericBdsLib/InternalBdsLib.h
View File

@ -1,7 +1,7 @@
/** @file
BDS library definition, include the file and data structure
Copyright (c) 2004 - 2012, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2004 - 2013, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
@ -158,28 +158,4 @@ ValidateOption (
UINTN VariableSize
);
/**
This function will create all handles associate with every device
path node. If the handle associate with one device path node can not
be created successfully, Dispatch service which load the missing drivers
is called basing on input parameter, since in some cases no driver
dependency is assumed exist, so may need not to call this service.
@param DevicePathToConnect The device path which will be connected, it can be
a multi-instance device path
@param NeedDispatch Whether requires dispatch service during connection
@retval EFI_SUCCESS All handles associate with every device path node
have been created
@retval EFI_OUT_OF_RESOURCES There is no resource to create new handles
@retval EFI_NOT_FOUND Create the handle associate with one device path
node failed
**/
EFI_STATUS
ConnectDevicePathInternal (
IN EFI_DEVICE_PATH_PROTOCOL *DevicePathToConnect,
IN BOOLEAN NeedDispatch
);
#endif // _BDS_LIB_H_