mirror of https://github.com/acidanthera/audk.git
86 lines
2.3 KiB
C
86 lines
2.3 KiB
C
|
/** @file
|
||
|
|
Platform specific TPM2 component for configuring the Platform Hierarchy.
|
||
|
|
|
||
|
|
Copyright (c) 2017 - 2019, Intel Corporation. All rights reserved.<BR>
|
||
|
|
SPDX-License-Identifier: BSD-2-Clause-Patent
|
||
|
|
|
||
|
|
**/
|
||
|
|
|
||
|
|
#include <PiDxe.h>
|
||
|
|
|
||
|
|
#include <Library/DebugLib.h>
|
||
|
|
#include <Library/UefiBootServicesTableLib.h>
|
||
|
|
#include <Library/UefiLib.h>
|
||
|
|
#include <Library/TpmPlatformHierarchyLib.h>
|
||
|
|
#include <Protocol/DxeSmmReadyToLock.h>
|
||
|
|
|
||
|
|
/**
|
||
|
|
This callback function will run at the SmmReadyToLock event.
|
||
|
|
|
||
|
|
Configuration of the TPM's Platform Hierarchy Authorization Value (platformAuth)
|
||
|
|
and Platform Hierarchy Authorization Policy (platformPolicy) can be defined through this function.
|
||
|
|
|
||
|
|
@param Event Pointer to this event
|
||
|
|
@param Context Event hanlder private data
|
||
|
|
**/
|
||
|
|
VOID
|
||
|
|
EFIAPI
|
||
|
|
SmmReadyToLockEventCallBack (
|
||
|
|
IN EFI_EVENT Event,
|
||
|
|
IN VOID *Context
|
||
|
|
)
|
||
|
|
{
|
||
|
|
EFI_STATUS Status;
|
||
|
|
VOID *Interface;
|
||
|
|
|
||
|
|
//
|
||
|
|
// Try to locate it because EfiCreateProtocolNotifyEvent will trigger it once when registration.
|
||
|
|
// Just return if it is not found.
|
||
|
|
//
|
||
|
|
Status = gBS->LocateProtocol (
|
||
|
|
&gEfiDxeSmmReadyToLockProtocolGuid,
|
||
|
|
NULL,
|
||
|
|
&Interface
|
||
|
|
);
|
||
|
|
if (EFI_ERROR (Status)) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
ConfigureTpmPlatformHierarchy ();
|
||
|
|
|
||
|
|
gBS->CloseEvent (Event);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
The driver's entry point. Will register a function for callback during SmmReadyToLock event to
|
||
|
|
configure the TPM's platform authorization.
|
||
|
|
|
||
|
|
@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
|
||
|
|
Tcg2PlatformDxeEntryPoint (
|
||
|
|
IN EFI_HANDLE ImageHandle,
|
||
|
|
IN EFI_SYSTEM_TABLE *SystemTable
|
||
|
|
)
|
||
|
|
{
|
||
|
|
VOID *Registration;
|
||
|
|
EFI_EVENT Event;
|
||
|
|
|
||
|
|
Event = EfiCreateProtocolNotifyEvent (
|
||
|
|
&gEfiDxeSmmReadyToLockProtocolGuid,
|
||
|
|
TPL_CALLBACK,
|
||
|
|
SmmReadyToLockEventCallBack,
|
||
|
|
NULL,
|
||
|
|
&Registration
|
||
|
|
);
|
||
|
|
|
||
|
|
ASSERT (Event != NULL);
|
||
|
|
|
||
|
|
return EFI_SUCCESS;
|
||
|
|
}
|