1 | /** @file
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2 | Definitions to install Multiple Processor PPI.
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3 |
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4 | Copyright (c) 2015 - 2023, Intel Corporation. All rights reserved.<BR>
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5 | SPDX-License-Identifier: BSD-2-Clause-Patent
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6 |
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7 | **/
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8 |
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9 | #ifndef _CPU_MP_PEI_H_
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10 | #define _CPU_MP_PEI_H_
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11 |
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12 | #include <PiPei.h>
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13 |
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14 | #include <Ppi/MpServices.h>
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15 | #include <Ppi/SecPlatformInformation.h>
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16 | #include <Ppi/SecPlatformInformation2.h>
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17 | #include <Ppi/EndOfPeiPhase.h>
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18 | #include <Ppi/MpServices2.h>
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19 |
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20 | #include <Library/BaseLib.h>
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21 | #include <Library/DebugLib.h>
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22 | #include <Library/HobLib.h>
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23 | #include <Library/LocalApicLib.h>
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24 | #include <Library/PeimEntryPoint.h>
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25 | #include <Library/PeiServicesLib.h>
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26 | #include <Library/ReportStatusCodeLib.h>
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27 | #include <Library/CpuExceptionHandlerLib.h>
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28 | #include <Library/MpInitLib.h>
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29 | #include <Library/BaseMemoryLib.h>
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30 | #include <Library/MemoryAllocationLib.h>
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31 | #include <Library/CpuPageTableLib.h>
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32 |
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33 | #include <Guid/MpInformation2.h>
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34 |
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35 | #include <Register/Cpuid.h>
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36 |
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37 | extern EFI_PEI_PPI_DESCRIPTOR mPeiCpuMpPpiDesc;
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38 |
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39 | /**
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40 | This service retrieves the number of logical processor in the platform
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41 | and the number of those logical processors that are enabled on this boot.
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42 | This service may only be called from the BSP.
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43 |
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44 | This function is used to retrieve the following information:
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45 | - The number of logical processors that are present in the system.
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46 | - The number of enabled logical processors in the system at the instant
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47 | this call is made.
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48 |
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49 | Because MP Service Ppi provides services to enable and disable processors
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50 | dynamically, the number of enabled logical processors may vary during the
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51 | course of a boot session.
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52 |
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53 | If this service is called from an AP, then EFI_DEVICE_ERROR is returned.
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54 | If NumberOfProcessors or NumberOfEnabledProcessors is NULL, then
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55 | EFI_INVALID_PARAMETER is returned. Otherwise, the total number of processors
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56 | is returned in NumberOfProcessors, the number of currently enabled processor
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57 | is returned in NumberOfEnabledProcessors, and EFI_SUCCESS is returned.
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58 |
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59 | @param[in] PeiServices An indirect pointer to the PEI Services Table
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60 | published by the PEI Foundation.
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61 | @param[in] This Pointer to this instance of the PPI.
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62 | @param[out] NumberOfProcessors Pointer to the total number of logical processors in
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63 | the system, including the BSP and disabled APs.
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64 | @param[out] NumberOfEnabledProcessors
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65 | Number of processors in the system that are enabled.
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66 |
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67 | @retval EFI_SUCCESS The number of logical processors and enabled
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68 | logical processors was retrieved.
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69 | @retval EFI_DEVICE_ERROR The calling processor is an AP.
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70 | @retval EFI_INVALID_PARAMETER NumberOfProcessors is NULL.
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71 | NumberOfEnabledProcessors is NULL.
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72 | **/
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73 | EFI_STATUS
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74 | EFIAPI
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75 | PeiGetNumberOfProcessors (
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76 | IN CONST EFI_PEI_SERVICES **PeiServices,
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77 | IN EFI_PEI_MP_SERVICES_PPI *This,
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78 | OUT UINTN *NumberOfProcessors,
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79 | OUT UINTN *NumberOfEnabledProcessors
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80 | );
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81 |
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82 | /**
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83 | Gets detailed MP-related information on the requested processor at the
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84 | instant this call is made. This service may only be called from the BSP.
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85 |
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86 | This service retrieves detailed MP-related information about any processor
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87 | on the platform. Note the following:
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88 | - The processor information may change during the course of a boot session.
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89 | - The information presented here is entirely MP related.
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90 |
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91 | Information regarding the number of caches and their sizes, frequency of operation,
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92 | slot numbers is all considered platform-related information and is not provided
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93 | by this service.
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94 |
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95 | @param[in] PeiServices An indirect pointer to the PEI Services Table
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96 | published by the PEI Foundation.
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97 | @param[in] This Pointer to this instance of the PPI.
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98 | @param[in] ProcessorNumber Pointer to the total number of logical processors in
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99 | the system, including the BSP and disabled APs.
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100 | @param[out] ProcessorInfoBuffer Number of processors in the system that are enabled.
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101 |
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102 | @retval EFI_SUCCESS Processor information was returned.
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103 | @retval EFI_DEVICE_ERROR The calling processor is an AP.
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104 | @retval EFI_INVALID_PARAMETER ProcessorInfoBuffer is NULL.
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105 | @retval EFI_NOT_FOUND The processor with the handle specified by
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106 | ProcessorNumber does not exist in the platform.
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107 | **/
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108 | EFI_STATUS
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109 | EFIAPI
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110 | PeiGetProcessorInfo (
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111 | IN CONST EFI_PEI_SERVICES **PeiServices,
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112 | IN EFI_PEI_MP_SERVICES_PPI *This,
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113 | IN UINTN ProcessorNumber,
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114 | OUT EFI_PROCESSOR_INFORMATION *ProcessorInfoBuffer
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115 | );
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116 |
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117 | /**
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118 | This service executes a caller provided function on all enabled APs. APs can
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119 | run either simultaneously or one at a time in sequence. This service supports
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120 | both blocking requests only. This service may only
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121 | be called from the BSP.
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122 |
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123 | This function is used to dispatch all the enabled APs to the function specified
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124 | by Procedure. If any enabled AP is busy, then EFI_NOT_READY is returned
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125 | immediately and Procedure is not started on any AP.
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126 |
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127 | If SingleThread is TRUE, all the enabled APs execute the function specified by
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128 | Procedure one by one, in ascending order of processor handle number. Otherwise,
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129 | all the enabled APs execute the function specified by Procedure simultaneously.
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130 |
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131 | If the timeout specified by TimeoutInMicroSeconds expires before all APs return
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132 | from Procedure, then Procedure on the failed APs is terminated. All enabled APs
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133 | are always available for further calls to EFI_PEI_MP_SERVICES_PPI.StartupAllAPs()
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134 | and EFI_PEI_MP_SERVICES_PPI.StartupThisAP(). If FailedCpuList is not NULL, its
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135 | content points to the list of processor handle numbers in which Procedure was
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136 | terminated.
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137 |
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138 | Note: It is the responsibility of the consumer of the EFI_PEI_MP_SERVICES_PPI.StartupAllAPs()
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139 | to make sure that the nature of the code that is executed on the BSP and the
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140 | dispatched APs is well controlled. The MP Services Ppi does not guarantee
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141 | that the Procedure function is MP-safe. Hence, the tasks that can be run in
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142 | parallel are limited to certain independent tasks and well-controlled exclusive
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143 | code. PEI services and Ppis may not be called by APs unless otherwise
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144 | specified.
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145 |
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146 | In blocking execution mode, BSP waits until all APs finish or
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147 | TimeoutInMicroSeconds expires.
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148 |
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149 | @param[in] PeiServices An indirect pointer to the PEI Services Table
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150 | published by the PEI Foundation.
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151 | @param[in] This A pointer to the EFI_PEI_MP_SERVICES_PPI instance.
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152 | @param[in] Procedure A pointer to the function to be run on enabled APs of
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153 | the system.
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154 | @param[in] SingleThread If TRUE, then all the enabled APs execute the function
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155 | specified by Procedure one by one, in ascending order
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156 | of processor handle number. If FALSE, then all the
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157 | enabled APs execute the function specified by Procedure
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158 | simultaneously.
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159 | @param[in] TimeoutInMicroSeconds
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160 | Indicates the time limit in microseconds for APs to
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161 | return from Procedure, for blocking mode only. Zero
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162 | means infinity. If the timeout expires before all APs
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163 | return from Procedure, then Procedure on the failed APs
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164 | is terminated. All enabled APs are available for next
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165 | function assigned by EFI_PEI_MP_SERVICES_PPI.StartupAllAPs()
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166 | or EFI_PEI_MP_SERVICES_PPI.StartupThisAP(). If the
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167 | timeout expires in blocking mode, BSP returns
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168 | EFI_TIMEOUT.
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169 | @param[in] ProcedureArgument The parameter passed into Procedure for all APs.
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170 |
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171 | @retval EFI_SUCCESS In blocking mode, all APs have finished before the
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172 | timeout expired.
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173 | @retval EFI_DEVICE_ERROR Caller processor is AP.
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174 | @retval EFI_NOT_STARTED No enabled APs exist in the system.
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175 | @retval EFI_NOT_READY Any enabled APs are busy.
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176 | @retval EFI_TIMEOUT In blocking mode, the timeout expired before all
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177 | enabled APs have finished.
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178 | @retval EFI_INVALID_PARAMETER Procedure is NULL.
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179 | **/
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180 | EFI_STATUS
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181 | EFIAPI
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182 | PeiStartupAllAPs (
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183 | IN CONST EFI_PEI_SERVICES **PeiServices,
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184 | IN EFI_PEI_MP_SERVICES_PPI *This,
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185 | IN EFI_AP_PROCEDURE Procedure,
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186 | IN BOOLEAN SingleThread,
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187 | IN UINTN TimeoutInMicroSeconds,
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188 | IN VOID *ProcedureArgument OPTIONAL
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189 | );
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190 |
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191 | /**
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192 | This service lets the caller get one enabled AP to execute a caller-provided
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193 | function. The caller can request the BSP to wait for the completion
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194 | of the AP. This service may only be called from the BSP.
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195 |
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196 | This function is used to dispatch one enabled AP to the function specified by
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197 | Procedure passing in the argument specified by ProcedureArgument.
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198 | The execution is in blocking mode. The BSP waits until the AP finishes or
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199 | TimeoutInMicroSecondss expires.
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200 |
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201 | If the timeout specified by TimeoutInMicroseconds expires before the AP returns
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202 | from Procedure, then execution of Procedure by the AP is terminated. The AP is
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203 | available for subsequent calls to EFI_PEI_MP_SERVICES_PPI.StartupAllAPs() and
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204 | EFI_PEI_MP_SERVICES_PPI.StartupThisAP().
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205 |
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206 | @param[in] PeiServices An indirect pointer to the PEI Services Table
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207 | published by the PEI Foundation.
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208 | @param[in] This A pointer to the EFI_PEI_MP_SERVICES_PPI instance.
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209 | @param[in] Procedure A pointer to the function to be run on enabled APs of
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210 | the system.
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211 | @param[in] ProcessorNumber The handle number of the AP. The range is from 0 to the
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212 | total number of logical processors minus 1. The total
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213 | number of logical processors can be retrieved by
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214 | EFI_PEI_MP_SERVICES_PPI.GetNumberOfProcessors().
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215 | @param[in] TimeoutInMicroseconds
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216 | Indicates the time limit in microseconds for APs to
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217 | return from Procedure, for blocking mode only. Zero
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218 | means infinity. If the timeout expires before all APs
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219 | return from Procedure, then Procedure on the failed APs
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220 | is terminated. All enabled APs are available for next
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221 | function assigned by EFI_PEI_MP_SERVICES_PPI.StartupAllAPs()
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222 | or EFI_PEI_MP_SERVICES_PPI.StartupThisAP(). If the
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223 | timeout expires in blocking mode, BSP returns
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224 | EFI_TIMEOUT.
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225 | @param[in] ProcedureArgument The parameter passed into Procedure for all APs.
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226 |
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227 | @retval EFI_SUCCESS In blocking mode, specified AP finished before the
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228 | timeout expires.
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229 | @retval EFI_DEVICE_ERROR The calling processor is an AP.
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230 | @retval EFI_TIMEOUT In blocking mode, the timeout expired before the
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231 | specified AP has finished.
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232 | @retval EFI_NOT_FOUND The processor with the handle specified by
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233 | ProcessorNumber does not exist.
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234 | @retval EFI_INVALID_PARAMETER ProcessorNumber specifies the BSP or disabled AP.
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235 | @retval EFI_INVALID_PARAMETER Procedure is NULL.
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236 | **/
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237 | EFI_STATUS
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238 | EFIAPI
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239 | PeiStartupThisAP (
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240 | IN CONST EFI_PEI_SERVICES **PeiServices,
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241 | IN EFI_PEI_MP_SERVICES_PPI *This,
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242 | IN EFI_AP_PROCEDURE Procedure,
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243 | IN UINTN ProcessorNumber,
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244 | IN UINTN TimeoutInMicroseconds,
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245 | IN VOID *ProcedureArgument OPTIONAL
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246 | );
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247 |
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248 | /**
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249 | This service switches the requested AP to be the BSP from that point onward.
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250 | This service changes the BSP for all purposes. This call can only be performed
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251 | by the current BSP.
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252 |
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253 | This service switches the requested AP to be the BSP from that point onward.
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254 | This service changes the BSP for all purposes. The new BSP can take over the
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255 | execution of the old BSP and continue seamlessly from where the old one left
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256 | off.
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257 |
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258 | If the BSP cannot be switched prior to the return from this service, then
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259 | EFI_UNSUPPORTED must be returned.
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260 |
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261 | @param[in] PeiServices An indirect pointer to the PEI Services Table
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262 | published by the PEI Foundation.
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263 | @param[in] This A pointer to the EFI_PEI_MP_SERVICES_PPI instance.
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264 | @param[in] ProcessorNumber The handle number of the AP. The range is from 0 to the
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265 | total number of logical processors minus 1. The total
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266 | number of logical processors can be retrieved by
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267 | EFI_PEI_MP_SERVICES_PPI.GetNumberOfProcessors().
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268 | @param[in] EnableOldBSP If TRUE, then the old BSP will be listed as an enabled
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269 | AP. Otherwise, it will be disabled.
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270 |
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271 | @retval EFI_SUCCESS BSP successfully switched.
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272 | @retval EFI_UNSUPPORTED Switching the BSP cannot be completed prior to this
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273 | service returning.
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274 | @retval EFI_UNSUPPORTED Switching the BSP is not supported.
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275 | @retval EFI_DEVICE_ERROR The calling processor is an AP.
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276 | @retval EFI_NOT_FOUND The processor with the handle specified by
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277 | ProcessorNumber does not exist.
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278 | @retval EFI_INVALID_PARAMETER ProcessorNumber specifies the current BSP or a disabled
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279 | AP.
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280 | @retval EFI_NOT_READY The specified AP is busy.
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281 | **/
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282 | EFI_STATUS
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283 | EFIAPI
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284 | PeiSwitchBSP (
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285 | IN CONST EFI_PEI_SERVICES **PeiServices,
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286 | IN EFI_PEI_MP_SERVICES_PPI *This,
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287 | IN UINTN ProcessorNumber,
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288 | IN BOOLEAN EnableOldBSP
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289 | );
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290 |
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291 | /**
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292 | This service lets the caller enable or disable an AP from this point onward.
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293 | This service may only be called from the BSP.
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294 |
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295 | This service allows the caller enable or disable an AP from this point onward.
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296 | The caller can optionally specify the health status of the AP by Health. If
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297 | an AP is being disabled, then the state of the disabled AP is implementation
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298 | dependent. If an AP is enabled, then the implementation must guarantee that a
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299 | complete initialization sequence is performed on the AP, so the AP is in a state
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300 | that is compatible with an MP operating system.
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301 |
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302 | If the enable or disable AP operation cannot be completed prior to the return
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303 | from this service, then EFI_UNSUPPORTED must be returned.
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304 |
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305 | @param[in] PeiServices An indirect pointer to the PEI Services Table
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306 | published by the PEI Foundation.
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307 | @param[in] This A pointer to the EFI_PEI_MP_SERVICES_PPI instance.
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308 | @param[in] ProcessorNumber The handle number of the AP. The range is from 0 to the
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309 | total number of logical processors minus 1. The total
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310 | number of logical processors can be retrieved by
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311 | EFI_PEI_MP_SERVICES_PPI.GetNumberOfProcessors().
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312 | @param[in] EnableAP Specifies the new state for the processor for enabled,
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313 | FALSE for disabled.
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314 | @param[in] HealthFlag If not NULL, a pointer to a value that specifies the
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315 | new health status of the AP. This flag corresponds to
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316 | StatusFlag defined in EFI_PEI_MP_SERVICES_PPI.GetProcessorInfo().
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317 | Only the PROCESSOR_HEALTH_STATUS_BIT is used. All other
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318 | bits are ignored. If it is NULL, this parameter is
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319 | ignored.
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320 |
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321 | @retval EFI_SUCCESS The specified AP was enabled or disabled successfully.
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322 | @retval EFI_UNSUPPORTED Enabling or disabling an AP cannot be completed prior
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323 | to this service returning.
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324 | @retval EFI_UNSUPPORTED Enabling or disabling an AP is not supported.
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325 | @retval EFI_DEVICE_ERROR The calling processor is an AP.
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326 | @retval EFI_NOT_FOUND Processor with the handle specified by ProcessorNumber
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327 | does not exist.
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328 | @retval EFI_INVALID_PARAMETER ProcessorNumber specifies the BSP.
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329 | **/
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330 | EFI_STATUS
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331 | EFIAPI
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332 | PeiEnableDisableAP (
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333 | IN CONST EFI_PEI_SERVICES **PeiServices,
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334 | IN EFI_PEI_MP_SERVICES_PPI *This,
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335 | IN UINTN ProcessorNumber,
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336 | IN BOOLEAN EnableAP,
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337 | IN UINT32 *HealthFlag OPTIONAL
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338 | );
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339 |
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340 | /**
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341 | This return the handle number for the calling processor. This service may be
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342 | called from the BSP and APs.
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343 |
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344 | This service returns the processor handle number for the calling processor.
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345 | The returned value is in the range from 0 to the total number of logical
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346 | processors minus 1. The total number of logical processors can be retrieved
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347 | with EFI_PEI_MP_SERVICES_PPI.GetNumberOfProcessors(). This service may be
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348 | called from the BSP and APs. If ProcessorNumber is NULL, then EFI_INVALID_PARAMETER
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349 | is returned. Otherwise, the current processors handle number is returned in
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350 | ProcessorNumber, and EFI_SUCCESS is returned.
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351 |
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352 | @param[in] PeiServices An indirect pointer to the PEI Services Table
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353 | published by the PEI Foundation.
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354 | @param[in] This A pointer to the EFI_PEI_MP_SERVICES_PPI instance.
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355 | @param[out] ProcessorNumber The handle number of the AP. The range is from 0 to the
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356 | total number of logical processors minus 1. The total
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357 | number of logical processors can be retrieved by
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358 | EFI_PEI_MP_SERVICES_PPI.GetNumberOfProcessors().
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359 |
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360 | @retval EFI_SUCCESS The current processor handle number was returned in
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361 | ProcessorNumber.
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362 | @retval EFI_INVALID_PARAMETER ProcessorNumber is NULL.
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363 | **/
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364 | EFI_STATUS
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365 | EFIAPI
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366 | PeiWhoAmI (
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367 | IN CONST EFI_PEI_SERVICES **PeiServices,
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368 | IN EFI_PEI_MP_SERVICES_PPI *This,
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369 | OUT UINTN *ProcessorNumber
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370 | );
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371 |
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372 | /**
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373 | Collects BIST data from PPI.
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374 |
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375 | This function collects BIST data from Sec Platform Information2 PPI
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376 | or SEC Platform Information PPI.
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377 |
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378 | @param PeiServices Pointer to PEI Services Table
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379 |
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380 | **/
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381 | VOID
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382 | CollectBistDataFromPpi (
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383 | IN CONST EFI_PEI_SERVICES **PeiServices
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384 | );
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385 |
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386 | /**
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387 | Implementation of the PlatformInformation2 service in EFI_SEC_PLATFORM_INFORMATION2_PPI.
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388 |
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389 | @param PeiServices The pointer to the PEI Services Table.
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390 | @param StructureSize The pointer to the variable describing size of the input buffer.
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391 | @param PlatformInformationRecord2 The pointer to the EFI_SEC_PLATFORM_INFORMATION_RECORD2.
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392 |
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393 | @retval EFI_SUCCESS The data was successfully returned.
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394 | @retval EFI_BUFFER_TOO_SMALL The buffer was too small. The current buffer size needed to
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395 | hold the record is returned in StructureSize.
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396 |
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397 | **/
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398 | EFI_STATUS
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399 | EFIAPI
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400 | SecPlatformInformation2 (
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401 | IN CONST EFI_PEI_SERVICES **PeiServices,
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402 | IN OUT UINT64 *StructureSize,
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403 | OUT EFI_SEC_PLATFORM_INFORMATION_RECORD2 *PlatformInformationRecord2
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404 | );
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405 |
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406 | /**
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407 | Migrates the Global Descriptor Table (GDT) to permanent memory.
|
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408 |
|
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409 | @retval EFI_SUCCESS The GDT was migrated successfully.
|
---|
410 | @retval EFI_OUT_OF_RESOURCES The GDT could not be migrated due to lack of available memory.
|
---|
411 |
|
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412 | **/
|
---|
413 | EFI_STATUS
|
---|
414 | MigrateGdt (
|
---|
415 | VOID
|
---|
416 | );
|
---|
417 |
|
---|
418 | /**
|
---|
419 | Initializes MP and exceptions handlers.
|
---|
420 |
|
---|
421 | @param PeiServices The pointer to the PEI Services Table.
|
---|
422 |
|
---|
423 | @retval EFI_SUCCESS MP was successfully initialized.
|
---|
424 | @retval others Error occurred in MP initialization.
|
---|
425 |
|
---|
426 | **/
|
---|
427 | EFI_STATUS
|
---|
428 | InitializeCpuMpWorker (
|
---|
429 | IN CONST EFI_PEI_SERVICES **PeiServices
|
---|
430 | );
|
---|
431 |
|
---|
432 | /**
|
---|
433 | Enable/setup stack guard for each processor if PcdCpuStackGuard is set to TRUE.
|
---|
434 |
|
---|
435 | Doing this in the memory-discovered callback is to make sure the Stack Guard
|
---|
436 | feature to cover as most PEI code as possible.
|
---|
437 |
|
---|
438 | @param[in] PeiServices General purpose services available to every PEIM.
|
---|
439 | @param[in] NotifyDescriptor The notification structure this PEIM registered on install.
|
---|
440 | @param[in] Ppi The memory discovered PPI. Not used.
|
---|
441 |
|
---|
442 | @retval EFI_SUCCESS The function completed successfully.
|
---|
443 | @retval others There's error in MP initialization.
|
---|
444 | **/
|
---|
445 | EFI_STATUS
|
---|
446 | EFIAPI
|
---|
447 | MemoryDiscoveredPpiNotifyCallback (
|
---|
448 | IN EFI_PEI_SERVICES **PeiServices,
|
---|
449 | IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,
|
---|
450 | IN VOID *Ppi
|
---|
451 | );
|
---|
452 |
|
---|
453 | extern EFI_PEI_NOTIFY_DESCRIPTOR mPostMemNotifyList[];
|
---|
454 |
|
---|
455 | #endif
|
---|