audk/MdeModulePkg/Include/Guid/PiSmmMemoryAttributesTable.h

46 lines
1.5 KiB
C

/** @file
Define the GUID of the EDKII PI SMM memory attribute table, which
is published by PI SMM Core.
Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef _PI_SMM_MEMORY_ATTRIBUTES_TABLE_H_
#define _PI_SMM_MEMORY_ATTRIBUTES_TABLE_H_
#define EDKII_PI_SMM_MEMORY_ATTRIBUTES_TABLE_GUID {\
0x6b9fd3f7, 0x16df, 0x45e8, {0xbd, 0x39, 0xb9, 0x4a, 0x66, 0x54, 0x1a, 0x5d} \
}
//
// The PI SMM memory attribute table contains the SMM memory map for SMM image.
//
// This table is installed to SMST as SMM configuration table.
//
// This table is published at gEfiSmmEndOfDxeProtocolGuid notification, because
// there should be no more SMM driver loaded after that. The EfiRuntimeServicesCode
// region should not be changed any more.
//
// This table is published, if and only if all SMM PE/COFF have aligned section
// as specified in UEFI specification Section 2.3. For example, IA32/X64 alignment is 4KiB.
//
// If this table is published, the EfiRuntimeServicesCode contains code only
// and it is EFI_MEMORY_RO; the EfiRuntimeServicesData contains data only
// and it is EFI_MEMORY_XP.
//
typedef struct {
UINT32 Version;
UINT32 NumberOfEntries;
UINT32 DescriptorSize;
UINT32 Reserved;
// EFI_MEMORY_DESCRIPTOR Entry[1];
} EDKII_PI_SMM_MEMORY_ATTRIBUTES_TABLE;
#define EDKII_PI_SMM_MEMORY_ATTRIBUTES_TABLE_VERSION 0x00000001
extern EFI_GUID gEdkiiPiSmmMemoryAttributesTableGuid;
#endif