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/** @file
MM driver instance of SmiHandlerProfile Library.
Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>
Copyright (c) Microsoft Corporation.
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include <PiMm.h>
#include <Library/SmiHandlerProfileLib.h>
#include <Library/MmServicesTableLib.h>
#include <Guid/SmiHandlerProfile.h>
SMI_HANDLER_PROFILE_PROTOCOL *mSmiHandlerProfile;
/**
This function is called by SmmChildDispatcher module to report
a new SMI handler is registered, to SmmCore.
@param HandlerGuid The GUID to identify the type of the handler.
For the SmmChildDispatch protocol, the HandlerGuid
must be the GUID of SmmChildDispatch protocol.
@param Handler The SMI handler.
@param CallerAddress The address of the module who registers the SMI handler.
@param Context The context of the SMI handler.
For the SmmChildDispatch protocol, the Context
must match the one defined for SmmChildDispatch protocol.
@param ContextSize The size of the context in bytes.
For the SmmChildDispatch protocol, the Context
must match the one defined for SmmChildDispatch protocol.
@retval EFI_SUCCESS The information is recorded.
@retval EFI_UNSUPPORTED The feature is unsupported.
@retval EFI_OUT_OF_RESOURCES There is no enough resource to record the information.
**/
EFI_STATUS
EFIAPI
SmiHandlerProfileRegisterHandler (
IN EFI_GUID *HandlerGuid,
IN EFI_SMM_HANDLER_ENTRY_POINT2 Handler,
IN PHYSICAL_ADDRESS CallerAddress,
IN VOID *Context, OPTIONAL
IN UINTN ContextSize OPTIONAL
)
{
if (mSmiHandlerProfile != NULL) {
return mSmiHandlerProfile->RegisterHandler (mSmiHandlerProfile, HandlerGuid, Handler, CallerAddress, Context, ContextSize);
}
return EFI_UNSUPPORTED;
}
/**
This function is called by SmmChildDispatcher module to report
an existing SMI handler is unregistered, to SmmCore.
@param HandlerGuid The GUID to identify the type of the handler.
For the SmmChildDispatch protocol, the HandlerGuid
must be the GUID of SmmChildDispatch protocol.
@param Handler The SMI handler.
@param Context The context of the SMI handler.
If it is NOT NULL, it will be used to check what is registered.
@param ContextSize The size of the context in bytes.
If Context is NOT NULL, it will be used to check what is registered.
@retval EFI_SUCCESS The original record is removed.
@retval EFI_UNSUPPORTED The feature is unsupported.
@retval EFI_NOT_FOUND There is no record for the HandlerGuid and handler.
**/
EFI_STATUS
EFIAPI
SmiHandlerProfileUnregisterHandler (
IN EFI_GUID *HandlerGuid,
IN EFI_SMM_HANDLER_ENTRY_POINT2 Handler,
IN VOID *Context, OPTIONAL
IN UINTN ContextSize OPTIONAL
)
{
if (mSmiHandlerProfile != NULL) {
return mSmiHandlerProfile->UnregisterHandler (mSmiHandlerProfile, HandlerGuid, Handler, Context, ContextSize);
}
return EFI_UNSUPPORTED;
}
/**
The common constructor function for SMI handler profile.
@retval EFI_SUCCESS The constructor always returns EFI_SUCCESS.
**/
EFI_STATUS
MmSmiHandlerProfileLibInitialization (
VOID
)
{
gMmst->MmLocateProtocol (
&gSmiHandlerProfileGuid,
NULL,
(VOID **) &mSmiHandlerProfile
);
return EFI_SUCCESS;
}
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