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      1 /** @file
      2   Define the GUID of the EDKII PI SMM memory attribute table, which
      3   is published by PI SMM Core.
      4 
      5 Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
      6 This program and the accompanying materials are licensed and made available under
      7 the terms and conditions of the BSD License that accompanies this distribution.
      8 The full text of the license may be found at
      9 http://opensource.org/licenses/bsd-license.php.
     10 
     11 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
     12 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
     13 
     14 **/
     15 
     16 #ifndef _PI_SMM_MEMORY_ATTRIBUTES_TABLE_H_
     17 #define _PI_SMM_MEMORY_ATTRIBUTES_TABLE_H_
     18 
     19 #define EDKII_PI_SMM_MEMORY_ATTRIBUTES_TABLE_GUID {\
     20   0x6b9fd3f7, 0x16df, 0x45e8, {0xbd, 0x39, 0xb9, 0x4a, 0x66, 0x54, 0x1a, 0x5d} \
     21 }
     22 
     23 //
     24 // The PI SMM memory attribute table contains the SMM memory map for SMM image.
     25 //
     26 // This table is installed to SMST as SMM configuration table.
     27 //
     28 // This table is published at gEfiSmmEndOfDxeProtocolGuid notification, because
     29 // there should be no more SMM driver loaded after that. The EfiRuntimeServicesCode
     30 // region should not be changed any more.
     31 //
     32 // This table is published, if and only if all SMM PE/COFF have aligned section
     33 // as specified in UEFI specification Section 2.3. For example, IA32/X64 alignment is 4KiB.
     34 //
     35 // If this table is published, the EfiRuntimeServicesCode contains code only
     36 // and it is EFI_MEMORY_RO; the EfiRuntimeServicesData contains data only
     37 // and it is EFI_MEMORY_XP.
     38 //
     39 typedef struct {
     40   UINT32                Version;
     41   UINT32                NumberOfEntries;
     42   UINT32                DescriptorSize;
     43   UINT32                Reserved;
     44 //EFI_MEMORY_DESCRIPTOR Entry[1];
     45 } EDKII_PI_SMM_MEMORY_ATTRIBUTES_TABLE;
     46 
     47 #define EDKII_PI_SMM_MEMORY_ATTRIBUTES_TABLE_VERSION  0x00000001
     48 
     49 extern EFI_GUID gEdkiiPiSmmMemoryAttributesTableGuid;
     50 
     51 #endif
     52