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/** @file
Definition of the MEFW global NVS area protocol. This protocol
publishes the address and format of a global ACPI NVS buffer used as a communications
buffer between SMM/DXE/PEI code and ASL code.
@todo The format is derived from the ACPI reference code, version 0.95.
Note: Data structures defined in this protocol are not naturally aligned.
@copyright
Copyright (c) 2012 - 2013 Intel Corporation. All rights reserved
This software and associated documentation (if any) is furnished
under a license and may only be used or copied in accordance
with the terms of the license. Except as permitted by such
license, no part of this software or documentation may be
reproduced, stored in a retrieval system, or transmitted in any
form or by any means without the express written consent of
Intel Corporation.
This file contains a 'Sample Driver' and is licensed as such
under the terms of your license agreement with Intel or your
vendor. This file may be modified by the user, subject to
the additional terms of the license agreement
**/
#ifndef _ME_GLOBAL_NVS_AREA_H_
#define _ME_GLOBAL_NVS_AREA_H_
///
/// Includes
///
///
/// Forward reference for pure ANSI compatability
///
EFI_FORWARD_DECLARATION (ME_GLOBAL_NVS_AREA_PROTOCOL);
///
/// ME Global NVS Area Protocol GUID
///
#define ME_GLOBAL_NVS_AREA_PROTOCOL_GUID \
{ \
0x3bffecfd, 0xd75f, 0x4975, 0xb8, 0x88, 0x39, 0x02, 0xbd, 0x69, 0x00, 0x2b \
}
///
/// Extern the GUID for protocol users.
///
extern EFI_GUID gMeGlobalNvsAreaProtocolGuid;
///
/// Global NVS Area definition
///
#pragma pack(1)
typedef struct {
UINT32 MeNvsRevision; ///< 000 Me NVS Protocol Revision
///
/// PTT Solution
///
UINT8 FTpmSwitch; /// (004) fTPM Solution Method Selection
///
/// PTT Allocated Buffer Address
///
UINT64 PTTAddress; /// (005) PTT Allocated Buffer Address
} ME_GLOBAL_NVS_AREA;
#pragma pack()
///
/// ME Global NVS Area Protocol
///
typedef struct _ME_GLOBAL_NVS_AREA_PROTOCOL {
ME_GLOBAL_NVS_AREA *Area;
} ME_GLOBAL_NVS_AREA_PROTOCOL;
#endif
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