UefiCpuPkg/Include/Register/Cpuid.h

   1 /** @file
   2 CPUID Definitions.
   3
   4 CPUID definitions based on contents of the Intel(R) 64 and IA-32 Architectures
   5 Software Developer's Manual, Volume 2A, CPUID instruction.
   6
   7 Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
   8 This program and the accompanying materials
   9 are licensed and made available under the terms and conditions of the BSD License
  10 which accompanies this distribution.  The full text of the license may be found at
  11 http://opensource.org/licenses/bsd-license.php
  12
  13 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  14 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  15
  16 **/
  17
  18 #ifndef __CPUID_H__
  19 #define __CPUID_H__
  20
  21 //
  22 // Definitions for CPUID instruction
  23 //
  24 #define CPUID_SIGNATURE                         0x0
  25
  26 #define CPUID_VERSION_INFO                      0x1
  27
  28 #define CPUID_CACHE_INFO                        0x2
  29
  30 #define CPUID_SERIAL_NUMBER                     0x3
  31
  32 #define CPUID_CACHE_PARAMS                      0x4
  33
  34 #define CPUID_MONITOR_MWAIT                     0x5
  35
  36 #define CPUID_EXTENDED_TOPOLOGY                 0xB
  37 #define   CPUID_EXTENDED_TOPOLOGY_LEVEL_TYPE_INVALID  0x0
  38 #define   CPUID_EXTENDED_TOPOLOGY_LEVEL_TYPE_SMT      0x1
  39 #define   CPUID_EXTENDED_TOPOLOGY_LEVEL_TYPE_CORE     0x2
  40
  41 #define CPUID_EXTENDED_FUNCTION                 0x80000000
  42
  43 #define CPUID_EXTENDED_CPU_SIG                  0x80000001
  44
  45 #define CPUID_BRAND_STRING1                     0x80000002
  46
  47 #define CPUID_BRAND_STRING2                     0x80000003
  48
  49 #define CPUID_BRAND_STRING3                     0x80000004
  50
  51 #define CPUID_VIR_PHY_ADDRESS_SIZE              0x80000008
  52
  53 #endif