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/** @file
GUIDs used for SMRAM CPU DATA Variable to keep 2 locations for copying data from
regular memory to SMM memory
@copyright
Copyright (c) 2011 - 2012 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 'Framework Code' and is licensed as such
under the terms of your license agreement with Intel or your
vendor. This file may not be modified, except as allowed by
additional terms of your license agreement.
**/
#ifndef _SMRAM_CPU_DATA_VARIABLE_H_
#define _SMRAM_CPU_DATA_VARIABLE_H_
///
/// CPU Driver will maintain ACPI CPU DATA in regular memory,
/// 1. CpuInitDxe driver will allocate SMM memory, and normal memory
/// 2. Save both location in SMRAM_CPU_DATA_VARIABLE
/// 3. Issue SMM_FROM_CPU_DRIVER_SAVE_INFO SW SMI to ask SMM driver to
/// copy data to SMRAM with signature.
/// 4. In S3 path, CPUS3 retrieves data by search signature in SMRAM.
///
#define SMRAM_CPU_DATA_VARIABLE_GUID \
{ \
0x429501d9, 0xe447, 0x40f4, 0x86, 0x7b, 0x75, 0xc9, 0x3a, 0x1d, 0xb5, 0x4e \
}
#define SMRAM_CPU_DATA_VARIABLE L"SmramCpuDataVar"
typedef struct {
EFI_PHYSICAL_ADDRESS LockBoxData;
EFI_PHYSICAL_ADDRESS SmramCpuData;
UINT64 LockBoxSize;
} SMRAM_CPU_DATA_ADDRESS;
extern EFI_GUID gSmramCpuDataVariableGuid;
#endif
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