MdeModulePkg/Include/Guid/PeiPerformanceHob.h

   1 /** @file
   2   This file defines performance guid for the performance entry in the HOB list,
   3   and define the PEI Performance HOB data structures.
   4   This hob can be used to store the boot performance data of pei phase.
   5
   6 Copyright (c) 2006 - 2009, Intel Corporation. <BR>
   7 All rights reserved. This program and the accompanying materials
   8 are licensed and made available under the terms and conditions of the BSD License
   9 which accompanies this distribution.  The full text of the license may be found at
  10 http://opensource.org/licenses/bsd-license.php
  11
  12 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  13 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  14
  15 **/
  16
  17 #ifndef __PEI_PERFORMANCE_HOB_H__
  18 #define __PEI_PERFORMANCE_HOB_H__
  19
  20 //
  21 // This is the GUID of PEI performance HOB
  22 //
  23 #define PEI_PERFORMANCE_HOB_GUID \
  24   { 0xec4df5af, 0x4395, 0x4cc9, { 0x94, 0xde, 0x77, 0x50, 0x6d, 0x12, 0xc7, 0xb8 } }
  25
  26 //
  27 // PEI_PERFORMANCE_STRING_SIZE must be a multiple of 8.
  28 //
  29 #define PEI_PERFORMANCE_STRING_SIZE     8
  30 #define PEI_PERFORMANCE_STRING_LENGTH   (PEI_PERFORMANCE_STRING_SIZE - 1)
  31
  32 typedef struct {
  33   EFI_PHYSICAL_ADDRESS  Handle;
  34   CHAR8                 Token[PEI_PERFORMANCE_STRING_SIZE];   ///> Measured token string name
  35   CHAR8                 Module[PEI_PERFORMANCE_STRING_SIZE];  ///> Module string name
  36   UINT64                StartTimeStamp;                       ///> Start time point
  37   UINT64                EndTimeStamp;                         ///> End time point
  38 } PEI_PERFORMANCE_LOG_ENTRY;
  39
  40 //
  41 // The header must be aligned at 8 bytes.
  42 //
  43 typedef struct {
  44   UINT32                NumberOfEntries;  ///> The number of all performance log entries
  45   UINT32                Reserved;
  46 } PEI_PERFORMANCE_LOG_HEADER;
  47
  48
  49 extern EFI_GUID gPeiPerformanceHobGuid;
  50
  51 #endif