mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-11-24 11:45:27 +01:00
80 lines
2.8 KiB
C
80 lines
2.8 KiB
C
/** @file
|
|
EFI SMM Base2 Protocol as defined in the PI 1.2 specification.
|
|
|
|
This protocol is utilized by all SMM drivers to locate the SMM infrastructure services and determine
|
|
whether the driver is being invoked inside SMRAM or outside of SMRAM.
|
|
|
|
Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>
|
|
SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
|
|
**/
|
|
|
|
#ifndef _SMM_BASE2_H_
|
|
#define _SMM_BASE2_H_
|
|
|
|
#include <Pi/PiSmmCis.h>
|
|
#include <Protocol/MmBase.h>
|
|
|
|
#define EFI_SMM_BASE2_PROTOCOL_GUID EFI_MM_BASE_PROTOCOL_GUID
|
|
|
|
typedef struct _EFI_SMM_BASE2_PROTOCOL EFI_SMM_BASE2_PROTOCOL;
|
|
|
|
/**
|
|
Service to indicate whether the driver is currently executing in the SMM Initialization phase.
|
|
|
|
This service is used to indicate whether the driver is currently executing in the SMM Initialization
|
|
phase. For SMM drivers, this will return TRUE in InSmram while inside the driver's entry point and
|
|
otherwise FALSE. For combination SMM/DXE drivers, this will return FALSE in the DXE launch. For the
|
|
SMM launch, it behaves as an SMM driver.
|
|
|
|
@param[in] This The EFI_SMM_BASE2_PROTOCOL instance.
|
|
@param[out] InSmram Pointer to a Boolean which, on return, indicates that the driver is
|
|
currently executing inside of SMRAM (TRUE) or outside of SMRAM (FALSE).
|
|
|
|
@retval EFI_SUCCESS The call returned successfully.
|
|
@retval EFI_INVALID_PARAMETER InSmram was NULL.
|
|
**/
|
|
typedef
|
|
EFI_STATUS
|
|
(EFIAPI *EFI_SMM_INSIDE_OUT2)(
|
|
IN CONST EFI_SMM_BASE2_PROTOCOL *This,
|
|
OUT BOOLEAN *InSmram
|
|
)
|
|
;
|
|
|
|
/**
|
|
Returns the location of the System Management Service Table (SMST).
|
|
|
|
This function returns the location of the System Management Service Table (SMST). The use of the
|
|
API is such that a driver can discover the location of the SMST in its entry point and then cache it in
|
|
some driver global variable so that the SMST can be invoked in subsequent handlers.
|
|
|
|
@param[in] This The EFI_SMM_BASE2_PROTOCOL instance.
|
|
@param[in,out] Smst On return, points to a pointer to the System Management Service Table (SMST).
|
|
|
|
@retval EFI_SUCCESS The operation was successful.
|
|
@retval EFI_INVALID_PARAMETER Smst was invalid.
|
|
@retval EFI_UNSUPPORTED Not in SMM.
|
|
**/
|
|
typedef
|
|
EFI_STATUS
|
|
(EFIAPI *EFI_SMM_GET_SMST_LOCATION2)(
|
|
IN CONST EFI_SMM_BASE2_PROTOCOL *This,
|
|
IN OUT EFI_SMM_SYSTEM_TABLE2 **Smst
|
|
)
|
|
;
|
|
|
|
///
|
|
/// EFI SMM Base2 Protocol is utilized by all SMM drivers to locate the SMM infrastructure
|
|
/// services and determine whether the driver is being invoked inside SMRAM or outside of SMRAM.
|
|
///
|
|
struct _EFI_SMM_BASE2_PROTOCOL {
|
|
EFI_SMM_INSIDE_OUT2 InSmm;
|
|
EFI_SMM_GET_SMST_LOCATION2 GetSmstLocation;
|
|
};
|
|
|
|
extern EFI_GUID gEfiSmmBase2ProtocolGuid;
|
|
|
|
#endif
|
|
|