mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-12-19 15:37:40 +01:00
79 lines
2.6 KiB
C
79 lines
2.6 KiB
C
/** @file
|
|
EFI SMM Configuration Protocol as defined in the PI 1.2 specification.
|
|
|
|
This protocol is used to:
|
|
1) report the portions of SMRAM regions which cannot be used for the SMRAM heap.
|
|
2) register the SMM Foundation entry point with the processor code. The entry
|
|
point will be invoked by the SMM processor entry code.
|
|
|
|
Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>
|
|
SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
|
|
**/
|
|
|
|
#ifndef _SMM_CONFIGURATION_H_
|
|
#define _SMM_CONFIGURATION_H_
|
|
|
|
#include <Protocol/MmConfiguration.h>
|
|
#include <Pi/PiSmmCis.h>
|
|
|
|
#define EFI_SMM_CONFIGURATION_PROTOCOL_GUID EFI_MM_CONFIGURATION_PROTOCOL_GUID
|
|
|
|
///
|
|
/// Structure describing a SMRAM region which cannot be used for the SMRAM heap.
|
|
///
|
|
typedef struct _EFI_SMM_RESERVED_SMRAM_REGION {
|
|
///
|
|
/// Starting address of the reserved SMRAM area, as it appears while SMRAM is open.
|
|
/// Ignored if SmramReservedSize is 0.
|
|
///
|
|
EFI_PHYSICAL_ADDRESS SmramReservedStart;
|
|
///
|
|
/// Number of bytes occupied by the reserved SMRAM area. A size of zero indicates the
|
|
/// last SMRAM area.
|
|
///
|
|
UINT64 SmramReservedSize;
|
|
} EFI_SMM_RESERVED_SMRAM_REGION;
|
|
|
|
typedef struct _EFI_SMM_CONFIGURATION_PROTOCOL EFI_SMM_CONFIGURATION_PROTOCOL;
|
|
|
|
/**
|
|
Register the SMM Foundation entry point.
|
|
|
|
This function registers the SMM Foundation entry point with the processor code. This entry point
|
|
will be invoked by the SMM Processor entry code.
|
|
|
|
@param[in] This The EFI_SMM_CONFIGURATION_PROTOCOL instance.
|
|
@param[in] SmmEntryPoint SMM Foundation entry point.
|
|
|
|
@retval EFI_SUCCESS Success to register SMM Entry Point.
|
|
@retval EFI_INVALID_PARAMETER SmmEntryPoint is NULL.
|
|
**/
|
|
typedef
|
|
EFI_STATUS
|
|
(EFIAPI *EFI_SMM_REGISTER_SMM_ENTRY)(
|
|
IN CONST EFI_SMM_CONFIGURATION_PROTOCOL *This,
|
|
IN EFI_SMM_ENTRY_POINT SmmEntryPoint
|
|
);
|
|
|
|
///
|
|
/// The EFI SMM Configuration Protocol is a mandatory protocol published by a DXE CPU driver to
|
|
/// indicate which areas within SMRAM are reserved for use by the CPU for any purpose,
|
|
/// such as stack, save state or SMM entry point.
|
|
///
|
|
/// The RegisterSmmEntry() function allows the SMM IPL DXE driver to register the SMM
|
|
/// Foundation entry point with the SMM entry vector code.
|
|
///
|
|
struct _EFI_SMM_CONFIGURATION_PROTOCOL {
|
|
///
|
|
/// A pointer to an array SMRAM ranges used by the initial SMM entry code.
|
|
///
|
|
EFI_SMM_RESERVED_SMRAM_REGION *SmramReservedRegions;
|
|
EFI_SMM_REGISTER_SMM_ENTRY RegisterSmmEntry;
|
|
};
|
|
|
|
extern EFI_GUID gEfiSmmConfigurationProtocolGuid;
|
|
|
|
#endif
|
|
|