mirror of https://github.com/acidanthera/audk.git
106 lines
4.4 KiB
C
106 lines
4.4 KiB
C
/** @file
|
|
The internal header file that declared a data structure that is shared
|
|
between the SMM IPL and the SMM Core.
|
|
|
|
Copyright (c) 2009 - 2010, 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
|
|
http://opensource.org/licenses/bsd-license.php
|
|
|
|
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
|
|
|
**/
|
|
|
|
#ifndef _PI_SMM_CORE_PRIVATE_DATA_H_
|
|
#define _PI_SMM_CORE_PRIVATE_DATA_H_
|
|
|
|
///
|
|
/// Signature for the private structure shared between the SMM IPL and the SMM Core
|
|
///
|
|
#define SMM_CORE_PRIVATE_DATA_SIGNATURE SIGNATURE_32 ('s', 'm', 'm', 'c')
|
|
|
|
///
|
|
/// Private structure that is used to share information between the SMM IPL and
|
|
/// the SMM Core. This structure is allocated from memory of type EfiRuntimeServicesData.
|
|
/// Since runtime memory types are converted to available memory when a legacy boot
|
|
/// is performed, the SMM Core must access any fields of this structure if a legacy
|
|
/// boot is performed. As a result, the SMM IPL must create an event notification
|
|
/// for the Legacy Boot event and notify the SMM Core that a legacy boot is being
|
|
/// performed. The SMM Core can then use this information to filter accesses to
|
|
/// thos structure.
|
|
///
|
|
typedef struct {
|
|
UINTN Signature;
|
|
|
|
///
|
|
/// The ImageHandle passed into the entry point of the SMM IPL. This ImageHandle
|
|
/// is used by the SMM Core to fill in the ParentImageHandle field of the Loaded
|
|
/// Image Protocol for each SMM Driver that is dispatched by the SMM Core.
|
|
///
|
|
EFI_HANDLE SmmIplImageHandle;
|
|
|
|
///
|
|
/// The number of SMRAM ranges passed from the SMM IPL to the SMM Core. The SMM
|
|
/// Core uses these ranges of SMRAM to initialize the SMM Core memory manager.
|
|
///
|
|
UINTN SmramRangeCount;
|
|
|
|
///
|
|
/// A table of SMRAM ranges passed from the SMM IPL to the SMM Core. The SMM
|
|
/// Core uses these ranges of SMRAM to initialize the SMM Core memory manager.
|
|
///
|
|
EFI_SMRAM_DESCRIPTOR *SmramRanges;
|
|
|
|
///
|
|
/// The SMM Foundation Entry Point. The SMM Core fills in this field when the
|
|
/// SMM Core is initialized. The SMM IPL is responsbile for registering this entry
|
|
/// point with the SMM Configuration Protocol. The SMM Configuration Protocol may
|
|
/// not be available at the time the SMM IPL and SMM Core are started, so the SMM IPL
|
|
/// sets up a protocol notification on the SMM Configuration Protocol and registers
|
|
/// the SMM Foundation Entry Point as soon as the SMM Configuration Protocol is
|
|
/// available.
|
|
///
|
|
EFI_SMM_ENTRY_POINT SmmEntryPoint;
|
|
|
|
///
|
|
/// Boolean flag set to TRUE while an SMI is being processed by the SMM Core.
|
|
///
|
|
BOOLEAN SmmEntryPointRegistered;
|
|
|
|
///
|
|
/// Boolean flag set to TRUE while an SMI is being processed by the SMM Core.
|
|
///
|
|
BOOLEAN InSmm;
|
|
|
|
///
|
|
/// This field is set by the SMM Core then the SMM Core is initialized. This field is
|
|
/// used by the SMM Base 2 Protocol and SMM Communication Protocol implementations in
|
|
/// the SMM IPL.
|
|
///
|
|
EFI_SMM_SYSTEM_TABLE2 *Smst;
|
|
|
|
///
|
|
/// This field is used by the SMM Communicatioon Protocol to pass a buffer into
|
|
/// a software SMI handler and for the software SMI handler to pass a buffer back to
|
|
/// the caller of the SMM Communication Protocol.
|
|
///
|
|
VOID *CommunicationBuffer;
|
|
|
|
///
|
|
/// This field is used by the SMM Communicatioon Protocol to pass the size of a buffer,
|
|
/// in bytes, into a software SMI handler and for the software SMI handler to pass the
|
|
/// size, in bytes, of a buffer back to the caller of the SMM Communication Protocol.
|
|
///
|
|
UINTN BufferSize;
|
|
|
|
///
|
|
/// This field is used by the SMM Communication Protocol to pass the return status from
|
|
/// a software SMI handler back to the caller of the SMM Communication Protocol.
|
|
///
|
|
EFI_STATUS ReturnStatus;
|
|
} SMM_CORE_PRIVATE_DATA;
|
|
|
|
#endif
|