1 /** @file 2 Definitions to install Multiple Processor PPI. 3 4 Copyright (c) 2015, Intel Corporation. All rights reserved.<BR> 5 This program and the accompanying materials 6 are licensed and made available under the terms and conditions of the BSD License 7 which accompanies this distribution. The full text of the license may be found at 8 http://opensource.org/licenses/bsd-license.php 9 10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 12 13 **/ 14 15 #ifndef _CPU_MP_PEI_H_ 16 #define _CPU_MP_PEI_H_ 17 18 #include <PiPei.h> 19 20 #include <Ppi/MpServices.h> 21 #include <Ppi/SecPlatformInformation.h> 22 #include <Ppi/SecPlatformInformation2.h> 23 #include <Ppi/EndOfPeiPhase.h> 24 25 #include <Register/Cpuid.h> 26 #include <Register/LocalApic.h> 27 28 #include <Library/BaseLib.h> 29 #include <Library/BaseMemoryLib.h> 30 #include <Library/DebugLib.h> 31 #include <Library/HobLib.h> 32 #include <Library/LocalApicLib.h> 33 #include <Library/MtrrLib.h> 34 #include <Library/PcdLib.h> 35 #include <Library/PeimEntryPoint.h> 36 #include <Library/PeiServicesLib.h> 37 #include <Library/ReportStatusCodeLib.h> 38 #include <Library/SynchronizationLib.h> 39 #include <Library/TimerLib.h> 40 #include <Library/UefiCpuLib.h> 41 #include <Library/CpuLib.h> 42 43 #include "Microcode.h" 44 45 // 46 // AP state 47 // 48 typedef enum { 49 CpuStateIdle, 50 CpuStateBusy, 51 CpuStateDisabled 52 } CPU_STATE; 53 54 #define WAKEUP_AP_SIGNAL SIGNATURE_32 ('S', 'T', 'A', 'P') 55 56 typedef enum { 57 ApInHltLoop = 1, 58 ApInMwaitLoop = 2, 59 ApInRunLoop = 3 60 } AP_LOOP_MODE; 61 62 // 63 // AP reset code information 64 // 65 typedef struct { 66 UINT8 *RendezvousFunnelAddress; 67 UINTN PModeEntryOffset; 68 UINTN LModeEntryOffset; 69 UINTN RendezvousFunnelSize; 70 } MP_ASSEMBLY_ADDRESS_MAP; 71 72 // 73 // CPU exchange information for switch BSP 74 // 75 typedef struct { 76 UINT8 State; // offset 0 77 UINTN StackPointer; // offset 4 / 8 78 IA32_DESCRIPTOR Gdtr; // offset 8 / 16 79 IA32_DESCRIPTOR Idtr; // offset 14 / 26 80 } CPU_EXCHANGE_ROLE_INFO; 81 82 typedef struct _PEI_CPU_MP_DATA PEI_CPU_MP_DATA; 83 84 #pragma pack(1) 85 86 typedef union { 87 struct { 88 UINT32 LimitLow : 16; 89 UINT32 BaseLow : 16; 90 UINT32 BaseMid : 8; 91 UINT32 Type : 4; 92 UINT32 System : 1; 93 UINT32 Dpl : 2; 94 UINT32 Present : 1; 95 UINT32 LimitHigh : 4; 96 UINT32 Software : 1; 97 UINT32 Reserved : 1; 98 UINT32 DefaultSize : 1; 99 UINT32 Granularity : 1; 100 UINT32 BaseHigh : 8; 101 } Bits; 102 UINT64 Uint64; 103 } IA32_GDT; 104 105 // 106 // MP CPU exchange information for AP reset code 107 // This structure is required to be packed because fixed field offsets 108 // into this structure are used in assembly code in this module 109 // 110 typedef struct { 111 UINTN Lock; 112 UINTN StackStart; 113 UINTN StackSize; 114 UINTN CFunction; 115 IA32_DESCRIPTOR GdtrProfile; 116 IA32_DESCRIPTOR IdtrProfile; 117 UINTN BufferStart; 118 UINTN PmodeOffset; 119 UINTN NumApsExecuting; 120 UINTN LmodeOffset; 121 UINTN Cr3; 122 PEI_CPU_MP_DATA *PeiCpuMpData; 123 } MP_CPU_EXCHANGE_INFO; 124 125 #pragma pack() 126 127 typedef struct { 128 UINTN Cr0; 129 UINTN Cr3; 130 UINTN Cr4; 131 UINTN Dr0; 132 UINTN Dr1; 133 UINTN Dr2; 134 UINTN Dr3; 135 UINTN Dr6; 136 UINTN Dr7; 137 } CPU_VOLATILE_REGISTERS; 138 139 typedef struct { 140 volatile UINT32 *StartupApSignal; 141 UINT32 ApicId; 142 EFI_HEALTH_FLAGS Health; 143 CPU_STATE State; 144 BOOLEAN CpuHealthy; 145 CPU_VOLATILE_REGISTERS VolatileRegisters; 146 } PEI_CPU_DATA; 147 148 // 149 // PEI CPU MP Data save in memory 150 // 151 struct _PEI_CPU_MP_DATA { 152 SPIN_LOCK MpLock; 153 UINT32 CpuCount; 154 UINT32 BspNumber; 155 UINTN Buffer; 156 UINTN CpuApStackSize; 157 MP_ASSEMBLY_ADDRESS_MAP AddressMap; 158 UINTN WakeupBuffer; 159 UINTN BackupBuffer; 160 UINTN BackupBufferSize; 161 UINTN ApFunction; 162 UINTN ApFunctionArgument; 163 volatile UINT32 FinishedCount; 164 BOOLEAN EndOfPeiFlag; 165 BOOLEAN InitFlag; 166 BOOLEAN X2ApicEnable; 167 CPU_EXCHANGE_ROLE_INFO BSPInfo; 168 CPU_EXCHANGE_ROLE_INFO APInfo; 169 MTRR_SETTINGS MtrrTable; 170 UINT8 ApLoopMode; 171 UINT8 ApTargetCState; 172 PEI_CPU_DATA *CpuData; 173 volatile MP_CPU_EXCHANGE_INFO *MpCpuExchangeInfo; 174 }; 175 extern EFI_PEI_PPI_DESCRIPTOR mPeiCpuMpPpiDesc; 176 177 178 /** 179 Assembly code to get starting address and size of the rendezvous entry for APs. 180 Information for fixing a jump instruction in the code is also returned. 181 182 @param AddressMap Output buffer for address map information. 183 **/ 184 VOID 185 EFIAPI 186 AsmGetAddressMap ( 187 OUT MP_ASSEMBLY_ADDRESS_MAP *AddressMap 188 ); 189 190 /** 191 Assembly code to load GDT table and update segment accordingly. 192 193 @param Gdtr Pointer to GDT descriptor 194 **/ 195 VOID 196 EFIAPI 197 AsmInitializeGdt ( 198 IN IA32_DESCRIPTOR *Gdtr 199 ); 200 201 /** 202 Get available system memory below 1MB by specified size. 203 204 @param PeiCpuMpData Pointer to PEI CPU MP Data 205 **/ 206 VOID 207 BackupAndPrepareWakeupBuffer( 208 IN PEI_CPU_MP_DATA *PeiCpuMpData 209 ); 210 211 /** 212 Restore wakeup buffer data. 213 214 @param PeiCpuMpData Pointer to PEI CPU MP Data 215 **/ 216 VOID 217 RestoreWakeupBuffer( 218 IN PEI_CPU_MP_DATA *PeiCpuMpData 219 ); 220 221 /** 222 Notify function on End Of Pei PPI. 223 224 On S3 boot, this function will restore wakeup buffer data. 225 On normal boot, this function will flag wakeup buffer to be un-used type. 226 227 @param PeiServices The pointer to the PEI Services Table. 228 @param NotifyDescriptor Address of the notification descriptor data structure. 229 @param Ppi Address of the PPI that was installed. 230 231 @retval EFI_SUCCESS When everything is OK. 232 233 **/ 234 EFI_STATUS 235 EFIAPI 236 CpuMpEndOfPeiCallback ( 237 IN EFI_PEI_SERVICES **PeiServices, 238 IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor, 239 IN VOID *Ppi 240 ); 241 242 /** 243 This function will be called by BSP to wakeup AP. 244 245 @param PeiCpuMpData Pointer to PEI CPU MP Data 246 @param Broadcast TRUE: Send broadcast IPI to all APs 247 FALSE: Send IPI to AP by ApicId 248 @param ProcessorNumber The handle number of specified processor 249 @param Procedure The function to be invoked by AP 250 @param ProcedureArgument The argument to be passed into AP function 251 **/ 252 VOID 253 WakeUpAP ( 254 IN PEI_CPU_MP_DATA *PeiCpuMpData, 255 IN BOOLEAN Broadcast, 256 IN UINTN ProcessorNumber, 257 IN EFI_AP_PROCEDURE Procedure, OPTIONAL 258 IN VOID *ProcedureArgument OPTIONAL 259 ); 260 261 /** 262 Get CPU MP Data pointer from the Guided HOB. 263 264 @return Pointer to Pointer to PEI CPU MP Data 265 **/ 266 PEI_CPU_MP_DATA * 267 GetMpHobData ( 268 VOID 269 ); 270 271 /** 272 Find the current Processor number by APIC ID. 273 274 @param PeiCpuMpData Pointer to PEI CPU MP Data 275 @param ProcessorNumber Return the pocessor number found 276 277 @retval EFI_SUCCESS ProcessorNumber is found and returned. 278 @retval EFI_NOT_FOUND ProcessorNumber is not found. 279 **/ 280 EFI_STATUS 281 GetProcessorNumber ( 282 IN PEI_CPU_MP_DATA *PeiCpuMpData, 283 OUT UINTN *ProcessorNumber 284 ); 285 286 /** 287 Collects BIST data from PPI. 288 289 This function collects BIST data from Sec Platform Information2 PPI 290 or SEC Platform Information PPI. 291 292 @param PeiServices Pointer to PEI Services Table 293 @param PeiCpuMpData Pointer to PEI CPU MP Data 294 295 **/ 296 VOID 297 CollectBistDataFromPpi ( 298 IN CONST EFI_PEI_SERVICES **PeiServices, 299 IN PEI_CPU_MP_DATA *PeiCpuMpData 300 ); 301 302 /** 303 Implementation of the PlatformInformation2 service in EFI_SEC_PLATFORM_INFORMATION2_PPI. 304 305 @param PeiServices The pointer to the PEI Services Table. 306 @param StructureSize The pointer to the variable describing size of the input buffer. 307 @param PlatformInformationRecord2 The pointer to the EFI_SEC_PLATFORM_INFORMATION_RECORD2. 308 309 @retval EFI_SUCCESS The data was successfully returned. 310 @retval EFI_BUFFER_TOO_SMALL The buffer was too small. The current buffer size needed to 311 hold the record is returned in StructureSize. 312 313 **/ 314 EFI_STATUS 315 EFIAPI 316 SecPlatformInformation2 ( 317 IN CONST EFI_PEI_SERVICES **PeiServices, 318 IN OUT UINT64 *StructureSize, 319 OUT EFI_SEC_PLATFORM_INFORMATION_RECORD2 *PlatformInformationRecord2 320 ); 321 322 #endif 323
