/** @file
  This file defines performance guid for the performance entry in the HOB list, 
  and define the PEI Performance HOB data structures. 
  This hob can be used to store the boot performance data of pei phase.

Copyright (c) 2006 - 2009, Intel Corporation. <BR>
All rights reserved. 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 __PEI_PERFORMANCE_HOB_H__
#define __PEI_PERFORMANCE_HOB_H__

//
// This is the GUID of PEI performance HOB
//
#define PEI_PERFORMANCE_HOB_GUID \
  { 0xec4df5af, 0x4395, 0x4cc9, { 0x94, 0xde, 0x77, 0x50, 0x6d, 0x12, 0xc7, 0xb8 } }

//
// PEI_PERFORMANCE_STRING_SIZE must be a multiple of 8.
//
#define PEI_PERFORMANCE_STRING_SIZE     8
#define PEI_PERFORMANCE_STRING_LENGTH   (PEI_PERFORMANCE_STRING_SIZE - 1)

typedef struct {
  EFI_PHYSICAL_ADDRESS  Handle;
  CHAR8                 Token[PEI_PERFORMANCE_STRING_SIZE];   ///> Measured token string name 
  CHAR8                 Module[PEI_PERFORMANCE_STRING_SIZE];  ///> Module string name
  UINT64                StartTimeStamp;                       ///> Start time point
  UINT64                EndTimeStamp;                         ///> End time point
} PEI_PERFORMANCE_LOG_ENTRY;

//
// The header must be aligned at 8 bytes.
// 
typedef struct {
  UINT32                NumberOfEntries;  ///> The number of all performance log entries
  UINT32                Reserved;
} PEI_PERFORMANCE_LOG_HEADER;


extern EFI_GUID gPeiPerformanceHobGuid;

#endif