projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| 529a5a86 MK |
1 | /** @file\r |
| 2 | Agent Module to load other modules to deploy SMM Entry Vector for X86 CPU.\r | |
| 3 | \r | |
| 4a68176c | 4 | Copyright (c) 2009 - 2022, Intel Corporation. All rights reserved.<BR>\r |
| 241f9149 LD |
5 | Copyright (c) 2017, AMD Incorporated. All rights reserved.<BR>\r |
| 6 | \r | |
| 0acd8697 | 7 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
| 529a5a86 MK |
8 | \r |
| 9 | **/\r | |
| 10 | \r | |
| 11 | #ifndef _CPU_PISMMCPUDXESMM_H_\r | |
| 12 | #define _CPU_PISMMCPUDXESMM_H_\r | |
| 13 | \r | |
| 14 | #include <PiSmm.h>\r | |
| 15 | \r | |
| 16 | #include <Protocol/MpService.h>\r | |
| 17 | #include <Protocol/SmmConfiguration.h>\r | |
| 18 | #include <Protocol/SmmCpu.h>\r | |
| 19 | #include <Protocol/SmmAccess2.h>\r | |
| 529a5a86 MK |
20 | #include <Protocol/SmmReadyToLock.h>\r |
| 21 | #include <Protocol/SmmCpuService.h>\r | |
| 827330cc | 22 | #include <Protocol/SmmMemoryAttribute.h>\r |
| 51dd408a | 23 | #include <Protocol/MmMp.h>\r |
| 529a5a86 MK |
24 | \r |
| 25 | #include <Guid/AcpiS3Context.h>\r | |
| 8a2e1a9d | 26 | #include <Guid/MemoryAttributesTable.h>\r |
| 717fb604 | 27 | #include <Guid/PiSmmMemoryAttributesTable.h>\r |
| 529a5a86 MK |
28 | \r |
| 29 | #include <Library/BaseLib.h>\r | |
| 30 | #include <Library/IoLib.h>\r | |
| 31 | #include <Library/TimerLib.h>\r | |
| 529a5a86 MK |
32 | #include <Library/SynchronizationLib.h>\r |
| 33 | #include <Library/DebugLib.h>\r | |
| 34 | #include <Library/BaseMemoryLib.h>\r | |
| 35 | #include <Library/PcdLib.h>\r | |
| 529a5a86 MK |
36 | #include <Library/MtrrLib.h>\r |
| 37 | #include <Library/SmmCpuPlatformHookLib.h>\r | |
| 38 | #include <Library/SmmServicesTableLib.h>\r | |
| 39 | #include <Library/MemoryAllocationLib.h>\r | |
| 40 | #include <Library/UefiBootServicesTableLib.h>\r | |
| 41 | #include <Library/UefiRuntimeServicesTableLib.h>\r | |
| 42 | #include <Library/DebugAgentLib.h>\r | |
| 8a2e1a9d | 43 | #include <Library/UefiLib.h>\r |
| 529a5a86 MK |
44 | #include <Library/HobLib.h>\r |
| 45 | #include <Library/LocalApicLib.h>\r | |
| 86d41c07 | 46 | #include <Library/CpuLib.h>\r |
| 529a5a86 MK |
47 | #include <Library/UefiCpuLib.h>\r |
| 48 | #include <Library/CpuExceptionHandlerLib.h>\r | |
| 49 | #include <Library/ReportStatusCodeLib.h>\r | |
| 50 | #include <Library/SmmCpuFeaturesLib.h>\r | |
| 51 | #include <Library/PeCoffGetEntryPointLib.h>\r | |
| 93324390 | 52 | #include <Library/RegisterCpuFeaturesLib.h>\r |
| 529a5a86 MK |
53 | \r |
| 54 | #include <AcpiCpuData.h>\r | |
| 55 | #include <CpuHotPlugData.h>\r | |
| 56 | \r | |
| 01acb06c RN |
57 | #include <Register/Intel/Cpuid.h>\r |
| 58 | #include <Register/Intel/Msr.h>\r | |
| 529a5a86 MK |
59 | \r |
| 60 | #include "CpuService.h"\r | |
| 61 | #include "SmmProfile.h"\r | |
| 62 | \r | |
| 3eb69b08 JY |
63 | //\r |
| 64 | // CET definition\r | |
| 65 | //\r | |
| 66 | #define CPUID_CET_SS BIT7\r | |
| 67 | #define CPUID_CET_IBT BIT20\r | |
| 68 | \r | |
| 69 | #define CR4_CET_ENABLE BIT23\r | |
| 70 | \r | |
| 71 | #define MSR_IA32_S_CET 0x6A2\r | |
| 72 | #define MSR_IA32_PL0_SSP 0x6A4\r | |
| 73 | #define MSR_IA32_INTERRUPT_SSP_TABLE_ADDR 0x6A8\r | |
| 74 | \r | |
| 75 | typedef union {\r | |
| 76 | struct {\r | |
| 77 | // enable shadow stacks\r | |
| 053e878b | 78 | UINT32 SH_STK_ENP : 1;\r |
| 3eb69b08 | 79 | // enable the WRSS{D,Q}W instructions.\r |
| 053e878b | 80 | UINT32 WR_SHSTK_EN : 1;\r |
| 3eb69b08 | 81 | // enable tracking of indirect call/jmp targets to be ENDBRANCH instruction.\r |
| 053e878b | 82 | UINT32 ENDBR_EN : 1;\r |
| 3eb69b08 | 83 | // enable legacy compatibility treatment for indirect call/jmp tracking.\r |
| 053e878b | 84 | UINT32 LEG_IW_EN : 1;\r |
| 3eb69b08 | 85 | // enable use of no-track prefix on indirect call/jmp.\r |
| 053e878b | 86 | UINT32 NO_TRACK_EN : 1;\r |
| 3eb69b08 | 87 | // disable suppression of CET indirect branch tracking on legacy compatibility.\r |
| 053e878b MK |
88 | UINT32 SUPPRESS_DIS : 1;\r |
| 89 | UINT32 RSVD : 4;\r | |
| 3eb69b08 JY |
90 | // indirect branch tracking is suppressed.\r |
| 91 | // This bit can be written to 1 only if TRACKER is written as IDLE.\r | |
| 053e878b | 92 | UINT32 SUPPRESS : 1;\r |
| 3eb69b08 JY |
93 | // Value of the endbranch state machine\r |
| 94 | // Values: IDLE (0), WAIT_FOR_ENDBRANCH(1).\r | |
| 053e878b | 95 | UINT32 TRACKER : 1;\r |
| 3eb69b08 JY |
96 | // linear address of a bitmap in memory indicating valid\r |
| 97 | // pages as target of CALL/JMP_indirect that do not land on ENDBRANCH when CET is enabled\r | |
| 98 | // and not suppressed. Valid when ENDBR_EN is 1. Must be machine canonical when written on\r | |
| 99 | // parts that support 64 bit mode. On parts that do not support 64 bit mode, the bits 63:32 are\r | |
| 100 | // reserved and must be 0. This value is extended by 12 bits at the low end to form the base address\r | |
| 101 | // (this automatically aligns the address on a 4-Kbyte boundary).\r | |
| 053e878b MK |
102 | UINT32 EB_LEG_BITMAP_BASE_low : 12;\r |
| 103 | UINT32 EB_LEG_BITMAP_BASE_high : 32;\r | |
| 3eb69b08 | 104 | } Bits;\r |
| 053e878b | 105 | UINT64 Uint64;\r |
| 3eb69b08 JY |
106 | } MSR_IA32_CET;\r |
| 107 | \r | |
| 529a5a86 MK |
108 | //\r |
| 109 | // MSRs required for configuration of SMM Code Access Check\r | |
| 110 | //\r | |
| 053e878b MK |
111 | #define EFI_MSR_SMM_MCA_CAP 0x17D\r |
| 112 | #define SMM_CODE_ACCESS_CHK_BIT BIT58\r | |
| 529a5a86 | 113 | \r |
| 053e878b MK |
114 | #define SMM_FEATURE_CONTROL_LOCK_BIT BIT0\r |
| 115 | #define SMM_CODE_CHK_EN_BIT BIT2\r | |
| 529a5a86 MK |
116 | \r |
| 117 | ///\r | |
| 118 | /// Page Table Entry\r | |
| 119 | ///\r | |
| 053e878b MK |
120 | #define IA32_PG_P BIT0\r |
| 121 | #define IA32_PG_RW BIT1\r | |
| 122 | #define IA32_PG_U BIT2\r | |
| 123 | #define IA32_PG_WT BIT3\r | |
| 124 | #define IA32_PG_CD BIT4\r | |
| 125 | #define IA32_PG_A BIT5\r | |
| 126 | #define IA32_PG_D BIT6\r | |
| 127 | #define IA32_PG_PS BIT7\r | |
| 128 | #define IA32_PG_PAT_2M BIT12\r | |
| 129 | #define IA32_PG_PAT_4K IA32_PG_PS\r | |
| 130 | #define IA32_PG_PMNT BIT62\r | |
| 131 | #define IA32_PG_NX BIT63\r | |
| 132 | \r | |
| 133 | #define PAGE_ATTRIBUTE_BITS (IA32_PG_D | IA32_PG_A | IA32_PG_U | IA32_PG_RW | IA32_PG_P)\r | |
| 881520ea JY |
134 | //\r |
| 135 | // Bits 1, 2, 5, 6 are reserved in the IA32 PAE PDPTE\r | |
| 136 | // X64 PAE PDPTE does not have such restriction\r | |
| 137 | //\r | |
| 053e878b | 138 | #define IA32_PAE_PDPTE_ATTRIBUTE_BITS (IA32_PG_P)\r |
| 881520ea | 139 | \r |
| 053e878b | 140 | #define PAGE_PROGATE_BITS (IA32_PG_NX | PAGE_ATTRIBUTE_BITS)\r |
| 717fb604 JY |
141 | \r |
| 142 | #define PAGING_4K_MASK 0xFFF\r | |
| 143 | #define PAGING_2M_MASK 0x1FFFFF\r | |
| 144 | #define PAGING_1G_MASK 0x3FFFFFFF\r | |
| 145 | \r | |
| 146 | #define PAGING_PAE_INDEX_MASK 0x1FF\r | |
| 147 | \r | |
| 053e878b MK |
148 | #define PAGING_4K_ADDRESS_MASK_64 0x000FFFFFFFFFF000ull\r |
| 149 | #define PAGING_2M_ADDRESS_MASK_64 0x000FFFFFFFE00000ull\r | |
| 150 | #define PAGING_1G_ADDRESS_MASK_64 0x000FFFFFC0000000ull\r | |
| 717fb604 | 151 | \r |
| 053e878b | 152 | #define SMRR_MAX_ADDRESS BASE_4GB\r |
| 7ed6f781 | 153 | \r |
| 717fb604 JY |
154 | typedef enum {\r |
| 155 | PageNone,\r | |
| 156 | Page4K,\r | |
| 157 | Page2M,\r | |
| 158 | Page1G,\r | |
| 159 | } PAGE_ATTRIBUTE;\r | |
| 160 | \r | |
| 161 | typedef struct {\r | |
| 053e878b MK |
162 | PAGE_ATTRIBUTE Attribute;\r |
| 163 | UINT64 Length;\r | |
| 164 | UINT64 AddressMask;\r | |
| 717fb604 JY |
165 | } PAGE_ATTRIBUTE_TABLE;\r |
| 166 | \r | |
| 529a5a86 MK |
167 | //\r |
| 168 | // Size of Task-State Segment defined in IA32 Manual\r | |
| 169 | //\r | |
| 053e878b MK |
170 | #define TSS_SIZE 104\r |
| 171 | #define EXCEPTION_TSS_SIZE (TSS_SIZE + 4) // Add 4 bytes SSP\r | |
| 172 | #define TSS_X64_IST1_OFFSET 36\r | |
| 173 | #define TSS_IA32_CR3_OFFSET 28\r | |
| 174 | #define TSS_IA32_ESP_OFFSET 56\r | |
| 175 | #define TSS_IA32_SSP_OFFSET 104\r | |
| 529a5a86 | 176 | \r |
| 053e878b | 177 | #define CR0_WP BIT16\r |
| 717fb604 | 178 | \r |
| 529a5a86 MK |
179 | //\r |
| 180 | // Code select value\r | |
| 181 | //\r | |
| 053e878b MK |
182 | #define PROTECT_MODE_CODE_SEGMENT 0x08\r |
| 183 | #define LONG_MODE_CODE_SEGMENT 0x38\r | |
| 529a5a86 MK |
184 | \r |
| 185 | //\r | |
| 186 | // The size 0x20 must be bigger than\r | |
| 187 | // the size of template code of SmmInit. Currently,\r | |
| 188 | // the size of SmmInit requires the 0x16 Bytes buffer\r | |
| 189 | // at least.\r | |
| 190 | //\r | |
| 191 | #define BACK_BUF_SIZE 0x20\r | |
| 192 | \r | |
| 053e878b | 193 | #define EXCEPTION_VECTOR_NUMBER 0x20\r |
| 529a5a86 | 194 | \r |
| 053e878b | 195 | #define INVALID_APIC_ID 0xFFFFFFFFFFFFFFFFULL\r |
| 529a5a86 | 196 | \r |
| 053e878b MK |
197 | typedef UINT32 SMM_CPU_ARRIVAL_EXCEPTIONS;\r |
| 198 | #define ARRIVAL_EXCEPTION_BLOCKED 0x1\r | |
| 199 | #define ARRIVAL_EXCEPTION_DELAYED 0x2\r | |
| 200 | #define ARRIVAL_EXCEPTION_SMI_DISABLED 0x4\r | |
| 529a5a86 | 201 | \r |
| 51dd408a ED |
202 | //\r |
| 203 | // Wrapper used to convert EFI_AP_PROCEDURE2 and EFI_AP_PROCEDURE.\r | |
| 204 | //\r | |
| 205 | typedef struct {\r | |
| 053e878b MK |
206 | EFI_AP_PROCEDURE Procedure;\r |
| 207 | VOID *ProcedureArgument;\r | |
| 51dd408a ED |
208 | } PROCEDURE_WRAPPER;\r |
| 209 | \r | |
| 210 | #define PROCEDURE_TOKEN_SIGNATURE SIGNATURE_32 ('P', 'R', 'T', 'S')\r | |
| 211 | \r | |
| 212 | typedef struct {\r | |
| 053e878b MK |
213 | UINTN Signature;\r |
| 214 | LIST_ENTRY Link;\r | |
| 51dd408a | 215 | \r |
| 053e878b MK |
216 | SPIN_LOCK *SpinLock;\r |
| 217 | volatile UINT32 RunningApCount;\r | |
| 51dd408a ED |
218 | } PROCEDURE_TOKEN;\r |
| 219 | \r | |
| 220 | #define PROCEDURE_TOKEN_FROM_LINK(a) CR (a, PROCEDURE_TOKEN, Link, PROCEDURE_TOKEN_SIGNATURE)\r | |
| 221 | \r | |
| 9caaa79d ED |
222 | #define TOKEN_BUFFER_SIGNATURE SIGNATURE_32 ('T', 'K', 'B', 'S')\r |
| 223 | \r | |
| 224 | typedef struct {\r | |
| 053e878b MK |
225 | UINTN Signature;\r |
| 226 | LIST_ENTRY Link;\r | |
| 9caaa79d | 227 | \r |
| 053e878b | 228 | UINT8 *Buffer;\r |
| 9caaa79d ED |
229 | } TOKEN_BUFFER;\r |
| 230 | \r | |
| 231 | #define TOKEN_BUFFER_FROM_LINK(a) CR (a, TOKEN_BUFFER, Link, TOKEN_BUFFER_SIGNATURE)\r | |
| 232 | \r | |
| 529a5a86 MK |
233 | //\r |
| 234 | // Private structure for the SMM CPU module that is stored in DXE Runtime memory\r | |
| 235 | // Contains the SMM Configuration Protocols that is produced.\r | |
| 236 | // Contains a mix of DXE and SMM contents. All the fields must be used properly.\r | |
| 237 | //\r | |
| 238 | #define SMM_CPU_PRIVATE_DATA_SIGNATURE SIGNATURE_32 ('s', 'c', 'p', 'u')\r | |
| 239 | \r | |
| 240 | typedef struct {\r | |
| 053e878b | 241 | UINTN Signature;\r |
| 529a5a86 | 242 | \r |
| 053e878b | 243 | EFI_HANDLE SmmCpuHandle;\r |
| 529a5a86 | 244 | \r |
| 053e878b MK |
245 | EFI_PROCESSOR_INFORMATION *ProcessorInfo;\r |
| 246 | SMM_CPU_OPERATION *Operation;\r | |
| 247 | UINTN *CpuSaveStateSize;\r | |
| 248 | VOID **CpuSaveState;\r | |
| 529a5a86 | 249 | \r |
| 053e878b MK |
250 | EFI_SMM_RESERVED_SMRAM_REGION SmmReservedSmramRegion[1];\r |
| 251 | EFI_SMM_ENTRY_CONTEXT SmmCoreEntryContext;\r | |
| 252 | EFI_SMM_ENTRY_POINT SmmCoreEntry;\r | |
| 529a5a86 | 253 | \r |
| 053e878b | 254 | EFI_SMM_CONFIGURATION_PROTOCOL SmmConfiguration;\r |
| 51dd408a | 255 | \r |
| 053e878b MK |
256 | PROCEDURE_WRAPPER *ApWrapperFunc;\r |
| 257 | LIST_ENTRY TokenList;\r | |
| 258 | LIST_ENTRY *FirstFreeToken;\r | |
| 529a5a86 MK |
259 | } SMM_CPU_PRIVATE_DATA;\r |
| 260 | \r | |
| 261 | extern SMM_CPU_PRIVATE_DATA *gSmmCpuPrivate;\r | |
| 053e878b MK |
262 | extern CPU_HOT_PLUG_DATA mCpuHotPlugData;\r |
| 263 | extern UINTN mMaxNumberOfCpus;\r | |
| 264 | extern UINTN mNumberOfCpus;\r | |
| 265 | extern EFI_SMM_CPU_PROTOCOL mSmmCpu;\r | |
| 266 | extern EFI_MM_MP_PROTOCOL mSmmMp;\r | |
| 7b475490 | 267 | extern BOOLEAN m5LevelPagingNeeded;\r |
| 529a5a86 MK |
268 | \r |
| 269 | ///\r | |
| 270 | /// The mode of the CPU at the time an SMI occurs\r | |
| 271 | ///\r | |
| 272 | extern UINT8 mSmmSaveStateRegisterLma;\r | |
| 273 | \r | |
| 529a5a86 MK |
274 | //\r |
| 275 | // SMM CPU Protocol function prototypes.\r | |
| 276 | //\r | |
| 277 | \r | |
| 278 | /**\r | |
| 279 | Read information from the CPU save state.\r | |
| 280 | \r | |
| 281 | @param This EFI_SMM_CPU_PROTOCOL instance\r | |
| 282 | @param Width The number of bytes to read from the CPU save state.\r | |
| 283 | @param Register Specifies the CPU register to read form the save state.\r | |
| 284 | @param CpuIndex Specifies the zero-based index of the CPU save state\r | |
| 285 | @param Buffer Upon return, this holds the CPU register value read from the save state.\r | |
| 286 | \r | |
| 287 | @retval EFI_SUCCESS The register was read from Save State\r | |
| 288 | @retval EFI_NOT_FOUND The register is not defined for the Save State of Processor\r | |
| ef62da4f | 289 | @retval EFI_INVALID_PARAMETER This or Buffer is NULL.\r |
| 529a5a86 MK |
290 | \r |
| 291 | **/\r | |
| 292 | EFI_STATUS\r | |
| 293 | EFIAPI\r | |
| 294 | SmmReadSaveState (\r | |
| 053e878b MK |
295 | IN CONST EFI_SMM_CPU_PROTOCOL *This,\r |
| 296 | IN UINTN Width,\r | |
| 297 | IN EFI_SMM_SAVE_STATE_REGISTER Register,\r | |
| 298 | IN UINTN CpuIndex,\r | |
| 299 | OUT VOID *Buffer\r | |
| 529a5a86 MK |
300 | );\r |
| 301 | \r | |
| 302 | /**\r | |
| 303 | Write data to the CPU save state.\r | |
| 304 | \r | |
| 305 | @param This EFI_SMM_CPU_PROTOCOL instance\r | |
| 306 | @param Width The number of bytes to read from the CPU save state.\r | |
| 307 | @param Register Specifies the CPU register to write to the save state.\r | |
| 308 | @param CpuIndex Specifies the zero-based index of the CPU save state\r | |
| 309 | @param Buffer Upon entry, this holds the new CPU register value.\r | |
| 310 | \r | |
| 311 | @retval EFI_SUCCESS The register was written from Save State\r | |
| 312 | @retval EFI_NOT_FOUND The register is not defined for the Save State of Processor\r | |
| ef62da4f | 313 | @retval EFI_INVALID_PARAMETER ProcessorIndex or Width is not correct\r |
| 529a5a86 MK |
314 | \r |
| 315 | **/\r | |
| 316 | EFI_STATUS\r | |
| 317 | EFIAPI\r | |
| 318 | SmmWriteSaveState (\r | |
| 053e878b MK |
319 | IN CONST EFI_SMM_CPU_PROTOCOL *This,\r |
| 320 | IN UINTN Width,\r | |
| 321 | IN EFI_SMM_SAVE_STATE_REGISTER Register,\r | |
| 322 | IN UINTN CpuIndex,\r | |
| 323 | IN CONST VOID *Buffer\r | |
| 529a5a86 MK |
324 | );\r |
| 325 | \r | |
| 326 | /**\r | |
| 327 | Read a CPU Save State register on the target processor.\r | |
| 328 | \r | |
| 329 | This function abstracts the differences that whether the CPU Save State register is in the\r | |
| 330 | IA32 CPU Save State Map or X64 CPU Save State Map.\r | |
| 331 | \r | |
| 332 | This function supports reading a CPU Save State register in SMBase relocation handler.\r | |
| 333 | \r | |
| 334 | @param[in] CpuIndex Specifies the zero-based index of the CPU save state.\r | |
| 335 | @param[in] RegisterIndex Index into mSmmCpuWidthOffset[] look up table.\r | |
| 336 | @param[in] Width The number of bytes to read from the CPU save state.\r | |
| 337 | @param[out] Buffer Upon return, this holds the CPU register value read from the save state.\r | |
| 338 | \r | |
| 339 | @retval EFI_SUCCESS The register was read from Save State.\r | |
| 340 | @retval EFI_NOT_FOUND The register is not defined for the Save State of Processor.\r | |
| a7d8e28b | 341 | @retval EFI_INVALID_PARAMETER Buffer is NULL, or Width does not meet requirement per Register type.\r |
| 529a5a86 MK |
342 | \r |
| 343 | **/\r | |
| 344 | EFI_STATUS\r | |
| 345 | EFIAPI\r | |
| 346 | ReadSaveStateRegister (\r | |
| 347 | IN UINTN CpuIndex,\r | |
| 348 | IN EFI_SMM_SAVE_STATE_REGISTER Register,\r | |
| 349 | IN UINTN Width,\r | |
| 350 | OUT VOID *Buffer\r | |
| 351 | );\r | |
| 352 | \r | |
| 353 | /**\r | |
| 354 | Write value to a CPU Save State register on the target processor.\r | |
| 355 | \r | |
| 356 | This function abstracts the differences that whether the CPU Save State register is in the\r | |
| 357 | IA32 CPU Save State Map or X64 CPU Save State Map.\r | |
| 358 | \r | |
| 359 | This function supports writing a CPU Save State register in SMBase relocation handler.\r | |
| 360 | \r | |
| 361 | @param[in] CpuIndex Specifies the zero-based index of the CPU save state.\r | |
| 362 | @param[in] RegisterIndex Index into mSmmCpuWidthOffset[] look up table.\r | |
| 363 | @param[in] Width The number of bytes to read from the CPU save state.\r | |
| 364 | @param[in] Buffer Upon entry, this holds the new CPU register value.\r | |
| 365 | \r | |
| 366 | @retval EFI_SUCCESS The register was written to Save State.\r | |
| 367 | @retval EFI_NOT_FOUND The register is not defined for the Save State of Processor.\r | |
| ef62da4f | 368 | @retval EFI_INVALID_PARAMETER ProcessorIndex or Width is not correct.\r |
| 529a5a86 MK |
369 | \r |
| 370 | **/\r | |
| 371 | EFI_STATUS\r | |
| 372 | EFIAPI\r | |
| 373 | WriteSaveStateRegister (\r | |
| 374 | IN UINTN CpuIndex,\r | |
| 375 | IN EFI_SMM_SAVE_STATE_REGISTER Register,\r | |
| 376 | IN UINTN Width,\r | |
| 377 | IN CONST VOID *Buffer\r | |
| 378 | );\r | |
| 379 | \r | |
| 053e878b MK |
380 | extern CONST UINT8 gcSmmInitTemplate[];\r |
| 381 | extern CONST UINT16 gcSmmInitSize;\r | |
| 382 | X86_ASSEMBLY_PATCH_LABEL gPatchSmmCr0;\r | |
| 383 | extern UINT32 mSmmCr0;\r | |
| 384 | X86_ASSEMBLY_PATCH_LABEL gPatchSmmCr3;\r | |
| 385 | extern UINT32 mSmmCr4;\r | |
| 386 | X86_ASSEMBLY_PATCH_LABEL gPatchSmmCr4;\r | |
| 387 | X86_ASSEMBLY_PATCH_LABEL gPatchSmmInitStack;\r | |
| 388 | X86_ASSEMBLY_PATCH_LABEL mPatchCetSupported;\r | |
| 389 | extern BOOLEAN mCetSupported;\r | |
| 529a5a86 MK |
390 | \r |
| 391 | /**\r | |
| 392 | Semaphore operation for all processor relocate SMMBase.\r | |
| 393 | **/\r | |
| 394 | VOID\r | |
| 395 | EFIAPI\r | |
| 396 | SmmRelocationSemaphoreComplete (\r | |
| 397 | VOID\r | |
| 398 | );\r | |
| 399 | \r | |
| 400 | ///\r | |
| 401 | /// The type of SMM CPU Information\r | |
| 402 | ///\r | |
| 403 | typedef struct {\r | |
| 053e878b MK |
404 | SPIN_LOCK *Busy;\r |
| 405 | volatile EFI_AP_PROCEDURE2 Procedure;\r | |
| 406 | volatile VOID *Parameter;\r | |
| 407 | volatile UINT32 *Run;\r | |
| 408 | volatile BOOLEAN *Present;\r | |
| 409 | PROCEDURE_TOKEN *Token;\r | |
| 410 | EFI_STATUS *Status;\r | |
| 529a5a86 MK |
411 | } SMM_CPU_DATA_BLOCK;\r |
| 412 | \r | |
| 413 | typedef enum {\r | |
| 414 | SmmCpuSyncModeTradition,\r | |
| 415 | SmmCpuSyncModeRelaxedAp,\r | |
| 416 | SmmCpuSyncModeMax\r | |
| 417 | } SMM_CPU_SYNC_MODE;\r | |
| 418 | \r | |
| 419 | typedef struct {\r | |
| 420 | //\r | |
| 421 | // Pointer to an array. The array should be located immediately after this structure\r | |
| 422 | // so that UC cache-ability can be set together.\r | |
| 423 | //\r | |
| 424 | SMM_CPU_DATA_BLOCK *CpuData;\r | |
| fe3a75bc | 425 | volatile UINT32 *Counter;\r |
| 529a5a86 | 426 | volatile UINT32 BspIndex;\r |
| fe3a75bc JF |
427 | volatile BOOLEAN *InsideSmm;\r |
| 428 | volatile BOOLEAN *AllCpusInSync;\r | |
| 529a5a86 MK |
429 | volatile SMM_CPU_SYNC_MODE EffectiveSyncMode;\r |
| 430 | volatile BOOLEAN SwitchBsp;\r | |
| 431 | volatile BOOLEAN *CandidateBsp;\r | |
| 4a68176c | 432 | volatile BOOLEAN AllApArrivedWithException;\r |
| 51dd408a ED |
433 | EFI_AP_PROCEDURE StartupProcedure;\r |
| 434 | VOID *StartupProcArgs;\r | |
| 529a5a86 MK |
435 | } SMM_DISPATCHER_MP_SYNC_DATA;\r |
| 436 | \r | |
| 053e878b | 437 | #define SMM_PSD_OFFSET 0xfb00\r |
| 529a5a86 | 438 | \r |
| 1d648531 JF |
439 | ///\r |
| 440 | /// All global semaphores' pointer\r | |
| 441 | ///\r | |
| 442 | typedef struct {\r | |
| 053e878b MK |
443 | volatile UINT32 *Counter;\r |
| 444 | volatile BOOLEAN *InsideSmm;\r | |
| 445 | volatile BOOLEAN *AllCpusInSync;\r | |
| 446 | SPIN_LOCK *PFLock;\r | |
| 447 | SPIN_LOCK *CodeAccessCheckLock;\r | |
| 1d648531 JF |
448 | } SMM_CPU_SEMAPHORE_GLOBAL;\r |
| 449 | \r | |
| 4e920581 JF |
450 | ///\r |
| 451 | /// All semaphores for each processor\r | |
| 452 | ///\r | |
| 453 | typedef struct {\r | |
| 053e878b MK |
454 | SPIN_LOCK *Busy;\r |
| 455 | volatile UINT32 *Run;\r | |
| 456 | volatile BOOLEAN *Present;\r | |
| 457 | SPIN_LOCK *Token;\r | |
| 4e920581 JF |
458 | } SMM_CPU_SEMAPHORE_CPU;\r |
| 459 | \r | |
| 1d648531 JF |
460 | ///\r |
| 461 | /// All semaphores' information\r | |
| 462 | ///\r | |
| 463 | typedef struct {\r | |
| 053e878b MK |
464 | SMM_CPU_SEMAPHORE_GLOBAL SemaphoreGlobal;\r |
| 465 | SMM_CPU_SEMAPHORE_CPU SemaphoreCpu;\r | |
| 1d648531 JF |
466 | } SMM_CPU_SEMAPHORES;\r |
| 467 | \r | |
| 053e878b MK |
468 | extern IA32_DESCRIPTOR gcSmiGdtr;\r |
| 469 | extern EFI_PHYSICAL_ADDRESS mGdtBuffer;\r | |
| 470 | extern UINTN mGdtBufferSize;\r | |
| 471 | extern IA32_DESCRIPTOR gcSmiIdtr;\r | |
| 472 | extern VOID *gcSmiIdtrPtr;\r | |
| 473 | extern UINT64 gPhyMask;\r | |
| 474 | extern SMM_DISPATCHER_MP_SYNC_DATA *mSmmMpSyncData;\r | |
| 475 | extern UINTN mSmmStackArrayBase;\r | |
| 476 | extern UINTN mSmmStackArrayEnd;\r | |
| 477 | extern UINTN mSmmStackSize;\r | |
| 478 | extern EFI_SMM_CPU_SERVICE_PROTOCOL mSmmCpuService;\r | |
| 479 | extern IA32_DESCRIPTOR gcSmiInitGdtr;\r | |
| 480 | extern SMM_CPU_SEMAPHORES mSmmCpuSemaphores;\r | |
| 481 | extern UINTN mSemaphoreSize;\r | |
| 482 | extern SPIN_LOCK *mPFLock;\r | |
| 483 | extern SPIN_LOCK *mConfigSmmCodeAccessCheckLock;\r | |
| 484 | extern EFI_SMRAM_DESCRIPTOR *mSmmCpuSmramRanges;\r | |
| 485 | extern UINTN mSmmCpuSmramRangeCount;\r | |
| 486 | extern UINT8 mPhysicalAddressBits;\r | |
| 529a5a86 | 487 | \r |
| 241f9149 LD |
488 | //\r |
| 489 | // Copy of the PcdPteMemoryEncryptionAddressOrMask\r | |
| 490 | //\r | |
| 491 | extern UINT64 mAddressEncMask;\r | |
| 492 | \r | |
| 529a5a86 MK |
493 | /**\r |
| 494 | Create 4G PageTable in SMRAM.\r | |
| 495 | \r | |
| 717fb604 | 496 | @param[in] Is32BitPageTable Whether the page table is 32-bit PAE\r |
| 529a5a86 MK |
497 | @return PageTable Address\r |
| 498 | \r | |
| 499 | **/\r | |
| 500 | UINT32\r | |
| 501 | Gen4GPageTable (\r | |
| 053e878b | 502 | IN BOOLEAN Is32BitPageTable\r |
| 529a5a86 MK |
503 | );\r |
| 504 | \r | |
| 529a5a86 MK |
505 | /**\r |
| 506 | Initialize global data for MP synchronization.\r | |
| 507 | \r | |
| 3eb69b08 JY |
508 | @param Stacks Base address of SMI stack buffer for all processors.\r |
| 509 | @param StackSize Stack size for each processor in SMM.\r | |
| 510 | @param ShadowStackSize Shadow Stack size for each processor in SMM.\r | |
| 529a5a86 MK |
511 | \r |
| 512 | **/\r | |
| 513 | UINT32\r | |
| 514 | InitializeMpServiceData (\r | |
| 053e878b MK |
515 | IN VOID *Stacks,\r |
| 516 | IN UINTN StackSize,\r | |
| 517 | IN UINTN ShadowStackSize\r | |
| 529a5a86 MK |
518 | );\r |
| 519 | \r | |
| 520 | /**\r | |
| 521 | Initialize Timer for SMM AP Sync.\r | |
| 522 | \r | |
| 523 | **/\r | |
| 524 | VOID\r | |
| 525 | InitializeSmmTimer (\r | |
| 526 | VOID\r | |
| 527 | );\r | |
| 528 | \r | |
| 529 | /**\r | |
| 530 | Start Timer for SMM AP Sync.\r | |
| 531 | \r | |
| 532 | **/\r | |
| 533 | UINT64\r | |
| 534 | EFIAPI\r | |
| 535 | StartSyncTimer (\r | |
| 536 | VOID\r | |
| 537 | );\r | |
| 538 | \r | |
| 539 | /**\r | |
| 540 | Check if the SMM AP Sync timer is timeout.\r | |
| 541 | \r | |
| 542 | @param Timer The start timer from the begin.\r | |
| 543 | \r | |
| 544 | **/\r | |
| 545 | BOOLEAN\r | |
| 546 | EFIAPI\r | |
| 547 | IsSyncTimerTimeout (\r | |
| 053e878b | 548 | IN UINT64 Timer\r |
| 529a5a86 MK |
549 | );\r |
| 550 | \r | |
| 551 | /**\r | |
| 552 | Initialize IDT for SMM Stack Guard.\r | |
| 553 | \r | |
| 554 | **/\r | |
| 555 | VOID\r | |
| 556 | EFIAPI\r | |
| 557 | InitializeIDTSmmStackGuard (\r | |
| 558 | VOID\r | |
| 559 | );\r | |
| 560 | \r | |
| 455b0347 S |
561 | /**\r |
| 562 | Initialize IDT IST Field.\r | |
| 563 | \r | |
| 564 | @param[in] ExceptionType Exception type.\r | |
| 565 | @param[in] Ist IST value.\r | |
| 566 | \r | |
| 567 | **/\r | |
| 568 | VOID\r | |
| 569 | EFIAPI\r | |
| 570 | InitializeIdtIst (\r | |
| 053e878b MK |
571 | IN EFI_EXCEPTION_TYPE ExceptionType,\r |
| 572 | IN UINT8 Ist\r | |
| 455b0347 S |
573 | );\r |
| 574 | \r | |
| fe5f1949 JY |
575 | /**\r |
| 576 | Initialize Gdt for all processors.\r | |
| 717fb604 | 577 | \r |
| fe5f1949 JY |
578 | @param[in] Cr3 CR3 value.\r |
| 579 | @param[out] GdtStepSize The step size for GDT table.\r | |
| 580 | \r | |
| 581 | @return GdtBase for processor 0.\r | |
| 582 | GdtBase for processor X is: GdtBase + (GdtStepSize * X)\r | |
| 583 | **/\r | |
| 584 | VOID *\r | |
| 585 | InitGdt (\r | |
| 586 | IN UINTN Cr3,\r | |
| 587 | OUT UINTN *GdtStepSize\r | |
| 588 | );\r | |
| 589 | \r | |
| 529a5a86 MK |
590 | /**\r |
| 591 | \r | |
| 592 | Register the SMM Foundation entry point.\r | |
| 593 | \r | |
| 594 | @param This Pointer to EFI_SMM_CONFIGURATION_PROTOCOL instance\r | |
| 595 | @param SmmEntryPoint SMM Foundation EntryPoint\r | |
| 596 | \r | |
| 597 | @retval EFI_SUCCESS Successfully to register SMM foundation entry point\r | |
| 598 | \r | |
| 599 | **/\r | |
| 600 | EFI_STATUS\r | |
| 601 | EFIAPI\r | |
| 602 | RegisterSmmEntry (\r | |
| 603 | IN CONST EFI_SMM_CONFIGURATION_PROTOCOL *This,\r | |
| 604 | IN EFI_SMM_ENTRY_POINT SmmEntryPoint\r | |
| 605 | );\r | |
| 606 | \r | |
| 607 | /**\r | |
| 608 | Create PageTable for SMM use.\r | |
| 609 | \r | |
| 610 | @return PageTable Address\r | |
| 611 | \r | |
| 612 | **/\r | |
| 613 | UINT32\r | |
| 614 | SmmInitPageTable (\r | |
| 615 | VOID\r | |
| 616 | );\r | |
| 617 | \r | |
| 618 | /**\r | |
| 619 | Schedule a procedure to run on the specified CPU.\r | |
| 620 | \r | |
| 621 | @param Procedure The address of the procedure to run\r | |
| 622 | @param CpuIndex Target CPU number\r | |
| 623 | @param ProcArguments The parameter to pass to the procedure\r | |
| 624 | \r | |
| 625 | @retval EFI_INVALID_PARAMETER CpuNumber not valid\r | |
| 626 | @retval EFI_INVALID_PARAMETER CpuNumber specifying BSP\r | |
| 627 | @retval EFI_INVALID_PARAMETER The AP specified by CpuNumber did not enter SMM\r | |
| 628 | @retval EFI_INVALID_PARAMETER The AP specified by CpuNumber is busy\r | |
| 629 | @retval EFI_SUCCESS - The procedure has been successfully scheduled\r | |
| 630 | \r | |
| 631 | **/\r | |
| 632 | EFI_STATUS\r | |
| 633 | EFIAPI\r | |
| 634 | SmmStartupThisAp (\r | |
| 053e878b MK |
635 | IN EFI_AP_PROCEDURE Procedure,\r |
| 636 | IN UINTN CpuIndex,\r | |
| 637 | IN OUT VOID *ProcArguments OPTIONAL\r | |
| 529a5a86 MK |
638 | );\r |
| 639 | \r | |
| 640 | /**\r | |
| 641 | Schedule a procedure to run on the specified CPU in a blocking fashion.\r | |
| 642 | \r | |
| 643 | @param Procedure The address of the procedure to run\r | |
| 644 | @param CpuIndex Target CPU Index\r | |
| 645 | @param ProcArguments The parameter to pass to the procedure\r | |
| 646 | \r | |
| 647 | @retval EFI_INVALID_PARAMETER CpuNumber not valid\r | |
| 648 | @retval EFI_INVALID_PARAMETER CpuNumber specifying BSP\r | |
| 649 | @retval EFI_INVALID_PARAMETER The AP specified by CpuNumber did not enter SMM\r | |
| 650 | @retval EFI_INVALID_PARAMETER The AP specified by CpuNumber is busy\r | |
| 651 | @retval EFI_SUCCESS The procedure has been successfully scheduled\r | |
| 652 | \r | |
| 653 | **/\r | |
| 654 | EFI_STATUS\r | |
| 655 | EFIAPI\r | |
| 656 | SmmBlockingStartupThisAp (\r | |
| 053e878b MK |
657 | IN EFI_AP_PROCEDURE Procedure,\r |
| 658 | IN UINTN CpuIndex,\r | |
| 659 | IN OUT VOID *ProcArguments OPTIONAL\r | |
| 529a5a86 MK |
660 | );\r |
| 661 | \r | |
| e4435f71 JY |
662 | /**\r |
| 663 | This function sets the attributes for the memory region specified by BaseAddress and\r | |
| 664 | Length from their current attributes to the attributes specified by Attributes.\r | |
| 665 | \r | |
| 666 | @param[in] BaseAddress The physical address that is the start address of a memory region.\r | |
| 667 | @param[in] Length The size in bytes of the memory region.\r | |
| 668 | @param[in] Attributes The bit mask of attributes to set for the memory region.\r | |
| 669 | \r | |
| 670 | @retval EFI_SUCCESS The attributes were set for the memory region.\r | |
| 671 | @retval EFI_ACCESS_DENIED The attributes for the memory resource range specified by\r | |
| 672 | BaseAddress and Length cannot be modified.\r | |
| 673 | @retval EFI_INVALID_PARAMETER Length is zero.\r | |
| 674 | Attributes specified an illegal combination of attributes that\r | |
| 675 | cannot be set together.\r | |
| 676 | @retval EFI_OUT_OF_RESOURCES There are not enough system resources to modify the attributes of\r | |
| 677 | the memory resource range.\r | |
| 678 | @retval EFI_UNSUPPORTED The processor does not support one or more bytes of the memory\r | |
| 679 | resource range specified by BaseAddress and Length.\r | |
| 680 | The bit mask of attributes is not support for the memory resource\r | |
| 681 | range specified by BaseAddress and Length.\r | |
| 682 | \r | |
| 683 | **/\r | |
| 684 | EFI_STATUS\r | |
| e4435f71 | 685 | SmmSetMemoryAttributes (\r |
| 053e878b MK |
686 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r |
| 687 | IN UINT64 Length,\r | |
| 688 | IN UINT64 Attributes\r | |
| e4435f71 JY |
689 | );\r |
| 690 | \r | |
| 691 | /**\r | |
| 692 | This function clears the attributes for the memory region specified by BaseAddress and\r | |
| 693 | Length from their current attributes to the attributes specified by Attributes.\r | |
| 694 | \r | |
| 695 | @param[in] BaseAddress The physical address that is the start address of a memory region.\r | |
| 696 | @param[in] Length The size in bytes of the memory region.\r | |
| 697 | @param[in] Attributes The bit mask of attributes to clear for the memory region.\r | |
| 698 | \r | |
| 699 | @retval EFI_SUCCESS The attributes were cleared for the memory region.\r | |
| 700 | @retval EFI_ACCESS_DENIED The attributes for the memory resource range specified by\r | |
| 701 | BaseAddress and Length cannot be modified.\r | |
| 702 | @retval EFI_INVALID_PARAMETER Length is zero.\r | |
| 703 | Attributes specified an illegal combination of attributes that\r | |
| 704 | cannot be set together.\r | |
| 705 | @retval EFI_OUT_OF_RESOURCES There are not enough system resources to modify the attributes of\r | |
| 706 | the memory resource range.\r | |
| 707 | @retval EFI_UNSUPPORTED The processor does not support one or more bytes of the memory\r | |
| 708 | resource range specified by BaseAddress and Length.\r | |
| 709 | The bit mask of attributes is not support for the memory resource\r | |
| 710 | range specified by BaseAddress and Length.\r | |
| 711 | \r | |
| 712 | **/\r | |
| 713 | EFI_STATUS\r | |
| e4435f71 | 714 | SmmClearMemoryAttributes (\r |
| 053e878b MK |
715 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r |
| 716 | IN UINT64 Length,\r | |
| 717 | IN UINT64 Attributes\r | |
| e4435f71 JY |
718 | );\r |
| 719 | \r | |
| 529a5a86 MK |
720 | /**\r |
| 721 | Initialize MP synchronization data.\r | |
| 722 | \r | |
| 723 | **/\r | |
| 724 | VOID\r | |
| 725 | EFIAPI\r | |
| 726 | InitializeMpSyncData (\r | |
| 727 | VOID\r | |
| 728 | );\r | |
| 729 | \r | |
| 730 | /**\r | |
| 731 | \r | |
| 732 | Find out SMRAM information including SMRR base and SMRR size.\r | |
| 733 | \r | |
| 734 | @param SmrrBase SMRR base\r | |
| 735 | @param SmrrSize SMRR size\r | |
| 736 | \r | |
| 737 | **/\r | |
| 738 | VOID\r | |
| 739 | FindSmramInfo (\r | |
| 053e878b MK |
740 | OUT UINT32 *SmrrBase,\r |
| 741 | OUT UINT32 *SmrrSize\r | |
| 529a5a86 MK |
742 | );\r |
| 743 | \r | |
| 744 | /**\r | |
| 0bdc9e75 | 745 | Relocate SmmBases for each processor.\r |
| 529a5a86 | 746 | \r |
| 0bdc9e75 | 747 | Execute on first boot and all S3 resumes\r |
| 529a5a86 MK |
748 | \r |
| 749 | **/\r | |
| 750 | VOID\r | |
| 0bdc9e75 SZ |
751 | EFIAPI\r |
| 752 | SmmRelocateBases (\r | |
| 529a5a86 MK |
753 | VOID\r |
| 754 | );\r | |
| 755 | \r | |
| 756 | /**\r | |
| 757 | Page Fault handler for SMM use.\r | |
| 758 | \r | |
| 759 | @param InterruptType Defines the type of interrupt or exception that\r | |
| 760 | occurred on the processor.This parameter is processor architecture specific.\r | |
| 761 | @param SystemContext A pointer to the processor context when\r | |
| 762 | the interrupt occurred on the processor.\r | |
| 763 | **/\r | |
| 764 | VOID\r | |
| 765 | EFIAPI\r | |
| 766 | SmiPFHandler (\r | |
| 053e878b MK |
767 | IN EFI_EXCEPTION_TYPE InterruptType,\r |
| 768 | IN EFI_SYSTEM_CONTEXT SystemContext\r | |
| 529a5a86 MK |
769 | );\r |
| 770 | \r | |
| 771 | /**\r | |
| 772 | Perform the remaining tasks.\r | |
| 773 | \r | |
| 774 | **/\r | |
| 775 | VOID\r | |
| 776 | PerformRemainingTasks (\r | |
| 777 | VOID\r | |
| 778 | );\r | |
| 779 | \r | |
| 9f419739 JY |
780 | /**\r |
| 781 | Perform the pre tasks.\r | |
| 782 | \r | |
| 783 | **/\r | |
| 784 | VOID\r | |
| 785 | PerformPreTasks (\r | |
| 786 | VOID\r | |
| 787 | );\r | |
| 788 | \r | |
| 529a5a86 MK |
789 | /**\r |
| 790 | Initialize MSR spin lock by MSR index.\r | |
| 791 | \r | |
| 792 | @param MsrIndex MSR index value.\r | |
| 793 | \r | |
| 794 | **/\r | |
| 795 | VOID\r | |
| 796 | InitMsrSpinLockByIndex (\r | |
| 053e878b | 797 | IN UINT32 MsrIndex\r |
| 529a5a86 MK |
798 | );\r |
| 799 | \r | |
| 800 | /**\r | |
| 801 | Hook return address of SMM Save State so that semaphore code\r | |
| 802 | can be executed immediately after AP exits SMM to indicate to\r | |
| 803 | the BSP that an AP has exited SMM after SMBASE relocation.\r | |
| 804 | \r | |
| 805 | @param[in] CpuIndex The processor index.\r | |
| 806 | @param[in] RebasedFlag A pointer to a flag that is set to TRUE\r | |
| 807 | immediately after AP exits SMM.\r | |
| 808 | \r | |
| 809 | **/\r | |
| 810 | VOID\r | |
| 811 | SemaphoreHook (\r | |
| 812 | IN UINTN CpuIndex,\r | |
| 813 | IN volatile BOOLEAN *RebasedFlag\r | |
| 814 | );\r | |
| 815 | \r | |
| 816 | /**\r | |
| 817 | Configure SMM Code Access Check feature for all processors.\r | |
| 818 | SMM Feature Control MSR will be locked after configuration.\r | |
| 819 | **/\r | |
| 820 | VOID\r | |
| 821 | ConfigSmmCodeAccessCheck (\r | |
| 822 | VOID\r | |
| 823 | );\r | |
| 824 | \r | |
| 825 | /**\r | |
| 826 | Hook the code executed immediately after an RSM instruction on the currently\r | |
| 827 | executing CPU. The mode of code executed immediately after RSM must be\r | |
| 828 | detected, and the appropriate hook must be selected. Always clear the auto\r | |
| 829 | HALT restart flag if it is set.\r | |
| 830 | \r | |
| 831 | @param[in] CpuIndex The processor index for the currently\r | |
| 832 | executing CPU.\r | |
| 833 | @param[in] CpuState Pointer to SMRAM Save State Map for the\r | |
| 834 | currently executing CPU.\r | |
| 835 | @param[in] NewInstructionPointer32 Instruction pointer to use if resuming to\r | |
| 836 | 32-bit mode from 64-bit SMM.\r | |
| 837 | @param[in] NewInstructionPointer Instruction pointer to use if resuming to\r | |
| 838 | same mode as SMM.\r | |
| 839 | \r | |
| 840 | @retval The value of the original instruction pointer before it was hooked.\r | |
| 841 | \r | |
| 842 | **/\r | |
| 843 | UINT64\r | |
| 844 | EFIAPI\r | |
| 845 | HookReturnFromSmm (\r | |
| 846 | IN UINTN CpuIndex,\r | |
| 847 | SMRAM_SAVE_STATE_MAP *CpuState,\r | |
| 848 | UINT64 NewInstructionPointer32,\r | |
| 849 | UINT64 NewInstructionPointer\r | |
| 850 | );\r | |
| 851 | \r | |
| 852 | /**\r | |
| 853 | Get the size of the SMI Handler in bytes.\r | |
| 854 | \r | |
| 855 | @retval The size, in bytes, of the SMI Handler.\r | |
| 856 | \r | |
| 857 | **/\r | |
| 858 | UINTN\r | |
| 859 | EFIAPI\r | |
| 860 | GetSmiHandlerSize (\r | |
| 861 | VOID\r | |
| 862 | );\r | |
| 863 | \r | |
| 864 | /**\r | |
| 865 | Install the SMI handler for the CPU specified by CpuIndex. This function\r | |
| 866 | is called by the CPU that was elected as monarch during System Management\r | |
| 867 | Mode initialization.\r | |
| 868 | \r | |
| 869 | @param[in] CpuIndex The index of the CPU to install the custom SMI handler.\r | |
| 870 | The value must be between 0 and the NumberOfCpus field\r | |
| 871 | in the System Management System Table (SMST).\r | |
| 872 | @param[in] SmBase The SMBASE address for the CPU specified by CpuIndex.\r | |
| 873 | @param[in] SmiStack The stack to use when an SMI is processed by the\r | |
| 874 | the CPU specified by CpuIndex.\r | |
| 875 | @param[in] StackSize The size, in bytes, if the stack used when an SMI is\r | |
| 876 | processed by the CPU specified by CpuIndex.\r | |
| 877 | @param[in] GdtBase The base address of the GDT to use when an SMI is\r | |
| 878 | processed by the CPU specified by CpuIndex.\r | |
| 879 | @param[in] GdtSize The size, in bytes, of the GDT used when an SMI is\r | |
| 880 | processed by the CPU specified by CpuIndex.\r | |
| 881 | @param[in] IdtBase The base address of the IDT to use when an SMI is\r | |
| 882 | processed by the CPU specified by CpuIndex.\r | |
| 883 | @param[in] IdtSize The size, in bytes, of the IDT used when an SMI is\r | |
| 884 | processed by the CPU specified by CpuIndex.\r | |
| 885 | @param[in] Cr3 The base address of the page tables to use when an SMI\r | |
| 886 | is processed by the CPU specified by CpuIndex.\r | |
| 887 | **/\r | |
| 888 | VOID\r | |
| 889 | EFIAPI\r | |
| 890 | InstallSmiHandler (\r | |
| 891 | IN UINTN CpuIndex,\r | |
| 892 | IN UINT32 SmBase,\r | |
| 893 | IN VOID *SmiStack,\r | |
| 894 | IN UINTN StackSize,\r | |
| 895 | IN UINTN GdtBase,\r | |
| 896 | IN UINTN GdtSize,\r | |
| 897 | IN UINTN IdtBase,\r | |
| 898 | IN UINTN IdtSize,\r | |
| 899 | IN UINT32 Cr3\r | |
| 900 | );\r | |
| 901 | \r | |
| 902 | /**\r | |
| 903 | Search module name by input IP address and output it.\r | |
| 904 | \r | |
| 905 | @param CallerIpAddress Caller instruction pointer.\r | |
| 906 | \r | |
| 907 | **/\r | |
| 908 | VOID\r | |
| 909 | DumpModuleInfoByIp (\r | |
| 053e878b | 910 | IN UINTN CallerIpAddress\r |
| 529a5a86 | 911 | );\r |
| 21c17193 | 912 | \r |
| 717fb604 JY |
913 | /**\r |
| 914 | This function sets memory attribute according to MemoryAttributesTable.\r | |
| 915 | **/\r | |
| 916 | VOID\r | |
| 917 | SetMemMapAttributes (\r | |
| 918 | VOID\r | |
| 919 | );\r | |
| 920 | \r | |
| d2fc7711 JY |
921 | /**\r |
| 922 | This function sets UEFI memory attribute according to UEFI memory map.\r | |
| 923 | **/\r | |
| 924 | VOID\r | |
| 925 | SetUefiMemMapAttributes (\r | |
| 926 | VOID\r | |
| 927 | );\r | |
| 928 | \r | |
| 929 | /**\r | |
| 930 | Return if the Address is forbidden as SMM communication buffer.\r | |
| 931 | \r | |
| 932 | @param[in] Address the address to be checked\r | |
| 933 | \r | |
| 934 | @return TRUE The address is forbidden as SMM communication buffer.\r | |
| 935 | @return FALSE The address is allowed as SMM communication buffer.\r | |
| 936 | **/\r | |
| 937 | BOOLEAN\r | |
| 938 | IsSmmCommBufferForbiddenAddress (\r | |
| 939 | IN UINT64 Address\r | |
| 940 | );\r | |
| 941 | \r | |
| 942 | /**\r | |
| 943 | This function caches the UEFI memory map information.\r | |
| 944 | **/\r | |
| 945 | VOID\r | |
| 946 | GetUefiMemoryMap (\r | |
| 947 | VOID\r | |
| 948 | );\r | |
| 949 | \r | |
| 717fb604 JY |
950 | /**\r |
| 951 | This function sets memory attribute for page table.\r | |
| 952 | **/\r | |
| 953 | VOID\r | |
| 954 | SetPageTableAttributes (\r | |
| 955 | VOID\r | |
| 956 | );\r | |
| 957 | \r | |
| 717fb604 JY |
958 | /**\r |
| 959 | This function sets the attributes for the memory region specified by BaseAddress and\r | |
| 960 | Length from their current attributes to the attributes specified by Attributes.\r | |
| 961 | \r | |
| 7b475490 DT |
962 | @param[in] PageTableBase The page table base.\r |
| 963 | @param[in] EnablePML5Paging If PML5 paging is enabled.\r | |
| 717fb604 JY |
964 | @param[in] BaseAddress The physical address that is the start address of a memory region.\r |
| 965 | @param[in] Length The size in bytes of the memory region.\r | |
| 966 | @param[in] Attributes The bit mask of attributes to set for the memory region.\r | |
| 967 | @param[out] IsSplitted TRUE means page table splitted. FALSE means page table not splitted.\r | |
| 968 | \r | |
| 969 | @retval EFI_SUCCESS The attributes were set for the memory region.\r | |
| 970 | @retval EFI_ACCESS_DENIED The attributes for the memory resource range specified by\r | |
| 971 | BaseAddress and Length cannot be modified.\r | |
| 972 | @retval EFI_INVALID_PARAMETER Length is zero.\r | |
| 973 | Attributes specified an illegal combination of attributes that\r | |
| 974 | cannot be set together.\r | |
| 975 | @retval EFI_OUT_OF_RESOURCES There are not enough system resources to modify the attributes of\r | |
| 976 | the memory resource range.\r | |
| 977 | @retval EFI_UNSUPPORTED The processor does not support one or more bytes of the memory\r | |
| 978 | resource range specified by BaseAddress and Length.\r | |
| 979 | The bit mask of attributes is not support for the memory resource\r | |
| 980 | range specified by BaseAddress and Length.\r | |
| 981 | \r | |
| 982 | **/\r | |
| 983 | EFI_STATUS\r | |
| 717fb604 | 984 | SmmSetMemoryAttributesEx (\r |
| 7b475490 DT |
985 | IN UINTN PageTableBase,\r |
| 986 | IN BOOLEAN EnablePML5Paging,\r | |
| 053e878b MK |
987 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r |
| 988 | IN UINT64 Length,\r | |
| 989 | IN UINT64 Attributes,\r | |
| 990 | OUT BOOLEAN *IsSplitted OPTIONAL\r | |
| 717fb604 JY |
991 | );\r |
| 992 | \r | |
| 993 | /**\r | |
| 994 | This function clears the attributes for the memory region specified by BaseAddress and\r | |
| 995 | Length from their current attributes to the attributes specified by Attributes.\r | |
| 996 | \r | |
| 7b475490 DT |
997 | @param[in] PageTableBase The page table base.\r |
| 998 | @param[in] EnablePML5Paging If PML5 paging is enabled.\r | |
| 717fb604 JY |
999 | @param[in] BaseAddress The physical address that is the start address of a memory region.\r |
| 1000 | @param[in] Length The size in bytes of the memory region.\r | |
| 1001 | @param[in] Attributes The bit mask of attributes to clear for the memory region.\r | |
| 1002 | @param[out] IsSplitted TRUE means page table splitted. FALSE means page table not splitted.\r | |
| 1003 | \r | |
| 1004 | @retval EFI_SUCCESS The attributes were cleared for the memory region.\r | |
| 1005 | @retval EFI_ACCESS_DENIED The attributes for the memory resource range specified by\r | |
| 1006 | BaseAddress and Length cannot be modified.\r | |
| 1007 | @retval EFI_INVALID_PARAMETER Length is zero.\r | |
| 1008 | Attributes specified an illegal combination of attributes that\r | |
| 1009 | cannot be set together.\r | |
| 1010 | @retval EFI_OUT_OF_RESOURCES There are not enough system resources to modify the attributes of\r | |
| 1011 | the memory resource range.\r | |
| 1012 | @retval EFI_UNSUPPORTED The processor does not support one or more bytes of the memory\r | |
| 1013 | resource range specified by BaseAddress and Length.\r | |
| 1014 | The bit mask of attributes is not support for the memory resource\r | |
| 1015 | range specified by BaseAddress and Length.\r | |
| 1016 | \r | |
| 1017 | **/\r | |
| 1018 | EFI_STATUS\r | |
| 717fb604 | 1019 | SmmClearMemoryAttributesEx (\r |
| 7b475490 DT |
1020 | IN UINTN PageTableBase,\r |
| 1021 | IN BOOLEAN EnablePML5Paging,\r | |
| 053e878b MK |
1022 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r |
| 1023 | IN UINT64 Length,\r | |
| 1024 | IN UINT64 Attributes,\r | |
| 1025 | OUT BOOLEAN *IsSplitted OPTIONAL\r | |
| 717fb604 JY |
1026 | );\r |
| 1027 | \r | |
| 21c17193 JY |
1028 | /**\r |
| 1029 | This API provides a way to allocate memory for page table.\r | |
| 1030 | \r | |
| 1031 | This API can be called more once to allocate memory for page tables.\r | |
| 1032 | \r | |
| 1033 | Allocates the number of 4KB pages of type EfiRuntimeServicesData and returns a pointer to the\r | |
| 1034 | allocated buffer. The buffer returned is aligned on a 4KB boundary. If Pages is 0, then NULL\r | |
| 1035 | is returned. If there is not enough memory remaining to satisfy the request, then NULL is\r | |
| 1036 | returned.\r | |
| 1037 | \r | |
| 1038 | @param Pages The number of 4 KB pages to allocate.\r | |
| 1039 | \r | |
| 1040 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
| 1041 | \r | |
| 1042 | **/\r | |
| 1043 | VOID *\r | |
| 1044 | AllocatePageTableMemory (\r | |
| 053e878b | 1045 | IN UINTN Pages\r |
| 21c17193 JY |
1046 | );\r |
| 1047 | \r | |
| 717fb604 JY |
1048 | /**\r |
| 1049 | Allocate pages for code.\r | |
| 1050 | \r | |
| 1051 | @param[in] Pages Number of pages to be allocated.\r | |
| 1052 | \r | |
| 1053 | @return Allocated memory.\r | |
| 1054 | **/\r | |
| 1055 | VOID *\r | |
| 1056 | AllocateCodePages (\r | |
| 053e878b | 1057 | IN UINTN Pages\r |
| 717fb604 JY |
1058 | );\r |
| 1059 | \r | |
| 1060 | /**\r | |
| 1061 | Allocate aligned pages for code.\r | |
| 1062 | \r | |
| 1063 | @param[in] Pages Number of pages to be allocated.\r | |
| 1064 | @param[in] Alignment The requested alignment of the allocation.\r | |
| 1065 | Must be a power of two.\r | |
| 1066 | If Alignment is zero, then byte alignment is used.\r | |
| 1067 | \r | |
| 1068 | @return Allocated memory.\r | |
| 1069 | **/\r | |
| 1070 | VOID *\r | |
| 1071 | AllocateAlignedCodePages (\r | |
| 053e878b MK |
1072 | IN UINTN Pages,\r |
| 1073 | IN UINTN Alignment\r | |
| 717fb604 JY |
1074 | );\r |
| 1075 | \r | |
| 0bdc9e75 SZ |
1076 | //\r |
| 1077 | // S3 related global variable and function prototype.\r | |
| 1078 | //\r | |
| 1079 | \r | |
| 053e878b | 1080 | extern BOOLEAN mSmmS3Flag;\r |
| 0bdc9e75 SZ |
1081 | \r |
| 1082 | /**\r | |
| 1083 | Initialize SMM S3 resume state structure used during S3 Resume.\r | |
| 1084 | \r | |
| 1085 | @param[in] Cr3 The base address of the page tables to use in SMM.\r | |
| 1086 | \r | |
| 1087 | **/\r | |
| 1088 | VOID\r | |
| 1089 | InitSmmS3ResumeState (\r | |
| 1090 | IN UINT32 Cr3\r | |
| 1091 | );\r | |
| 1092 | \r | |
| 1093 | /**\r | |
| 1094 | Get ACPI CPU data.\r | |
| 1095 | \r | |
| 1096 | **/\r | |
| 1097 | VOID\r | |
| 1098 | GetAcpiCpuData (\r | |
| 1099 | VOID\r | |
| 1100 | );\r | |
| 1101 | \r | |
| 1102 | /**\r | |
| 1103 | Restore SMM Configuration in S3 boot path.\r | |
| 1104 | \r | |
| 1105 | **/\r | |
| 1106 | VOID\r | |
| 1107 | RestoreSmmConfigurationInS3 (\r | |
| 1108 | VOID\r | |
| 1109 | );\r | |
| 1110 | \r | |
| b10d5ddc SZ |
1111 | /**\r |
| 1112 | Get ACPI S3 enable flag.\r | |
| 1113 | \r | |
| 1114 | **/\r | |
| 1115 | VOID\r | |
| 1116 | GetAcpiS3EnableFlag (\r | |
| 1117 | VOID\r | |
| 1118 | );\r | |
| 1119 | \r | |
| 4a0f88dd JF |
1120 | /**\r |
| 1121 | Transfer AP to safe hlt-loop after it finished restore CPU features on S3 patch.\r | |
| 1122 | \r | |
| 672b80c8 MK |
1123 | @param[in] ApHltLoopCode The address of the safe hlt-loop function.\r |
| 1124 | @param[in] TopOfStack A pointer to the new stack to use for the ApHltLoopCode.\r | |
| 1125 | @param[in] NumberToFinishAddress Address of Semaphore of APs finish count.\r | |
| 4a0f88dd JF |
1126 | \r |
| 1127 | **/\r | |
| 1128 | VOID\r | |
| 1129 | TransferApToSafeState (\r | |
| 672b80c8 MK |
1130 | IN UINTN ApHltLoopCode,\r |
| 1131 | IN UINTN TopOfStack,\r | |
| 1132 | IN UINTN NumberToFinishAddress\r | |
| 4a0f88dd JF |
1133 | );\r |
| 1134 | \r | |
| 3eb69b08 JY |
1135 | /**\r |
| 1136 | Set ShadowStack memory.\r | |
| 1137 | \r | |
| 1138 | @param[in] Cr3 The page table base address.\r | |
| 1139 | @param[in] BaseAddress The physical address that is the start address of a memory region.\r | |
| 1140 | @param[in] Length The size in bytes of the memory region.\r | |
| 1141 | \r | |
| 1142 | @retval EFI_SUCCESS The shadow stack memory is set.\r | |
| 1143 | **/\r | |
| 1144 | EFI_STATUS\r | |
| 1145 | SetShadowStack (\r | |
| 053e878b MK |
1146 | IN UINTN Cr3,\r |
| 1147 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r | |
| 1148 | IN UINT64 Length\r | |
| 3eb69b08 JY |
1149 | );\r |
| 1150 | \r | |
| 1151 | /**\r | |
| 1152 | Set not present memory.\r | |
| 1153 | \r | |
| 1154 | @param[in] Cr3 The page table base address.\r | |
| 1155 | @param[in] BaseAddress The physical address that is the start address of a memory region.\r | |
| 1156 | @param[in] Length The size in bytes of the memory region.\r | |
| 1157 | \r | |
| 1158 | @retval EFI_SUCCESS The not present memory is set.\r | |
| 1159 | **/\r | |
| 1160 | EFI_STATUS\r | |
| 1161 | SetNotPresentPage (\r | |
| 053e878b MK |
1162 | IN UINTN Cr3,\r |
| 1163 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r | |
| 1164 | IN UINT64 Length\r | |
| 3eb69b08 JY |
1165 | );\r |
| 1166 | \r | |
| 1167 | /**\r | |
| 1168 | Initialize the shadow stack related data structure.\r | |
| 1169 | \r | |
| 1170 | @param CpuIndex The index of CPU.\r | |
| 1171 | @param ShadowStack The bottom of the shadow stack for this CPU.\r | |
| 1172 | **/\r | |
| 1173 | VOID\r | |
| 1174 | InitShadowStack (\r | |
| 1175 | IN UINTN CpuIndex,\r | |
| 1176 | IN VOID *ShadowStack\r | |
| 1177 | );\r | |
| 1178 | \r | |
| 827330cc JW |
1179 | /**\r |
| 1180 | This function set given attributes of the memory region specified by\r | |
| 1181 | BaseAddress and Length.\r | |
| 1182 | \r | |
| 1183 | @param This The EDKII_SMM_MEMORY_ATTRIBUTE_PROTOCOL instance.\r | |
| 1184 | @param BaseAddress The physical address that is the start address of\r | |
| 1185 | a memory region.\r | |
| 1186 | @param Length The size in bytes of the memory region.\r | |
| 1187 | @param Attributes The bit mask of attributes to set for the memory\r | |
| 1188 | region.\r | |
| 1189 | \r | |
| 1190 | @retval EFI_SUCCESS The attributes were set for the memory region.\r | |
| 1191 | @retval EFI_INVALID_PARAMETER Length is zero.\r | |
| 1192 | Attributes specified an illegal combination of\r | |
| 1193 | attributes that cannot be set together.\r | |
| 1194 | @retval EFI_UNSUPPORTED The processor does not support one or more\r | |
| 1195 | bytes of the memory resource range specified\r | |
| 1196 | by BaseAddress and Length.\r | |
| aae02dcc | 1197 | The bit mask of attributes is not supported for\r |
| 827330cc JW |
1198 | the memory resource range specified by\r |
| 1199 | BaseAddress and Length.\r | |
| 1200 | \r | |
| 1201 | **/\r | |
| 1202 | EFI_STATUS\r | |
| 1203 | EFIAPI\r | |
| 1204 | EdkiiSmmSetMemoryAttributes (\r | |
| 053e878b MK |
1205 | IN EDKII_SMM_MEMORY_ATTRIBUTE_PROTOCOL *This,\r |
| 1206 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r | |
| 1207 | IN UINT64 Length,\r | |
| 1208 | IN UINT64 Attributes\r | |
| 827330cc JW |
1209 | );\r |
| 1210 | \r | |
| 1211 | /**\r | |
| 1212 | This function clears given attributes of the memory region specified by\r | |
| 1213 | BaseAddress and Length.\r | |
| 1214 | \r | |
| 1215 | @param This The EDKII_SMM_MEMORY_ATTRIBUTE_PROTOCOL instance.\r | |
| 1216 | @param BaseAddress The physical address that is the start address of\r | |
| 1217 | a memory region.\r | |
| 1218 | @param Length The size in bytes of the memory region.\r | |
| aae02dcc | 1219 | @param Attributes The bit mask of attributes to clear for the memory\r |
| 827330cc JW |
1220 | region.\r |
| 1221 | \r | |
| aae02dcc | 1222 | @retval EFI_SUCCESS The attributes were cleared for the memory region.\r |
| 827330cc JW |
1223 | @retval EFI_INVALID_PARAMETER Length is zero.\r |
| 1224 | Attributes specified an illegal combination of\r | |
| aae02dcc | 1225 | attributes that cannot be cleared together.\r |
| 827330cc JW |
1226 | @retval EFI_UNSUPPORTED The processor does not support one or more\r |
| 1227 | bytes of the memory resource range specified\r | |
| 1228 | by BaseAddress and Length.\r | |
| aae02dcc | 1229 | The bit mask of attributes is not supported for\r |
| 827330cc JW |
1230 | the memory resource range specified by\r |
| 1231 | BaseAddress and Length.\r | |
| 1232 | \r | |
| 1233 | **/\r | |
| 1234 | EFI_STATUS\r | |
| 1235 | EFIAPI\r | |
| 1236 | EdkiiSmmClearMemoryAttributes (\r | |
| 053e878b MK |
1237 | IN EDKII_SMM_MEMORY_ATTRIBUTE_PROTOCOL *This,\r |
| 1238 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r | |
| 1239 | IN UINT64 Length,\r | |
| 1240 | IN UINT64 Attributes\r | |
| 827330cc JW |
1241 | );\r |
| 1242 | \r | |
| 1243 | /**\r | |
| aae02dcc | 1244 | This function retrieves the attributes of the memory region specified by\r |
| 827330cc JW |
1245 | BaseAddress and Length. If different attributes are got from different part\r |
| 1246 | of the memory region, EFI_NO_MAPPING will be returned.\r | |
| 1247 | \r | |
| 1248 | @param This The EDKII_SMM_MEMORY_ATTRIBUTE_PROTOCOL instance.\r | |
| 1249 | @param BaseAddress The physical address that is the start address of\r | |
| 1250 | a memory region.\r | |
| 1251 | @param Length The size in bytes of the memory region.\r | |
| 1252 | @param Attributes Pointer to attributes returned.\r | |
| 1253 | \r | |
| 1254 | @retval EFI_SUCCESS The attributes got for the memory region.\r | |
| 1255 | @retval EFI_INVALID_PARAMETER Length is zero.\r | |
| 1256 | Attributes is NULL.\r | |
| 1257 | @retval EFI_NO_MAPPING Attributes are not consistent cross the memory\r | |
| 1258 | region.\r | |
| 1259 | @retval EFI_UNSUPPORTED The processor does not support one or more\r | |
| 1260 | bytes of the memory resource range specified\r | |
| 1261 | by BaseAddress and Length.\r | |
| 827330cc JW |
1262 | \r |
| 1263 | **/\r | |
| 1264 | EFI_STATUS\r | |
| 1265 | EFIAPI\r | |
| 1266 | EdkiiSmmGetMemoryAttributes (\r | |
| 053e878b MK |
1267 | IN EDKII_SMM_MEMORY_ATTRIBUTE_PROTOCOL *This,\r |
| 1268 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r | |
| 1269 | IN UINT64 Length,\r | |
| 1270 | IN UINT64 *Attributes\r | |
| 827330cc JW |
1271 | );\r |
| 1272 | \r | |
| e21e355e LG |
1273 | /**\r |
| 1274 | This function fixes up the address of the global variable or function\r | |
| ef62da4f | 1275 | referred in SmmInit assembly files to be the absolute address.\r |
| e21e355e LG |
1276 | **/\r |
| 1277 | VOID\r | |
| 1278 | EFIAPI\r | |
| 1279 | PiSmmCpuSmmInitFixupAddress (\r | |
| 053e878b | 1280 | );\r |
| e21e355e LG |
1281 | \r |
| 1282 | /**\r | |
| 1283 | This function fixes up the address of the global variable or function\r | |
| ef62da4f | 1284 | referred in SmiEntry assembly files to be the absolute address.\r |
| e21e355e LG |
1285 | **/\r |
| 1286 | VOID\r | |
| 1287 | EFIAPI\r | |
| 1288 | PiSmmCpuSmiEntryFixupAddress (\r | |
| 053e878b | 1289 | );\r |
| e21e355e | 1290 | \r |
| 37f9fea5 VN |
1291 | /**\r |
| 1292 | This function reads CR2 register when on-demand paging is enabled\r | |
| 1293 | for 64 bit and no action for 32 bit.\r | |
| 1294 | \r | |
| 1295 | @param[out] *Cr2 Pointer to variable to hold CR2 register value.\r | |
| 1296 | **/\r | |
| 1297 | VOID\r | |
| 1298 | SaveCr2 (\r | |
| 1299 | OUT UINTN *Cr2\r | |
| 1300 | );\r | |
| 1301 | \r | |
| 1302 | /**\r | |
| 1303 | This function writes into CR2 register when on-demand paging is enabled\r | |
| 1304 | for 64 bit and no action for 32 bit.\r | |
| 1305 | \r | |
| 1306 | @param[in] Cr2 Value to write into CR2 register.\r | |
| 1307 | **/\r | |
| 1308 | VOID\r | |
| 1309 | RestoreCr2 (\r | |
| 1310 | IN UINTN Cr2\r | |
| 1311 | );\r | |
| 1312 | \r | |
| 51dd408a ED |
1313 | /**\r |
| 1314 | Schedule a procedure to run on the specified CPU.\r | |
| 1315 | \r | |
| 1316 | @param[in] Procedure The address of the procedure to run\r | |
| 1317 | @param[in] CpuIndex Target CPU Index\r | |
| 1318 | @param[in,out] ProcArguments The parameter to pass to the procedure\r | |
| 1319 | @param[in,out] Token This is an optional parameter that allows the caller to execute the\r | |
| 1320 | procedure in a blocking or non-blocking fashion. If it is NULL the\r | |
| 1321 | call is blocking, and the call will not return until the AP has\r | |
| 1322 | completed the procedure. If the token is not NULL, the call will\r | |
| 1323 | return immediately. The caller can check whether the procedure has\r | |
| 1324 | completed with CheckOnProcedure or WaitForProcedure.\r | |
| 1325 | @param[in] TimeoutInMicroseconds Indicates the time limit in microseconds for the APs to finish\r | |
| 1326 | execution of Procedure, either for blocking or non-blocking mode.\r | |
| 1327 | Zero means infinity. If the timeout expires before all APs return\r | |
| 1328 | from Procedure, then Procedure on the failed APs is terminated. If\r | |
| 1329 | the timeout expires in blocking mode, the call returns EFI_TIMEOUT.\r | |
| 1330 | If the timeout expires in non-blocking mode, the timeout determined\r | |
| 1331 | can be through CheckOnProcedure or WaitForProcedure.\r | |
| 1332 | Note that timeout support is optional. Whether an implementation\r | |
| 1333 | supports this feature can be determined via the Attributes data\r | |
| 1334 | member.\r | |
| 073f2ced | 1335 | @param[in,out] CpuStatus This optional pointer may be used to get the status code returned\r |
| 51dd408a ED |
1336 | by Procedure when it completes execution on the target AP, or with\r |
| 1337 | EFI_TIMEOUT if the Procedure fails to complete within the optional\r | |
| 1338 | timeout. The implementation will update this variable with\r | |
| 1339 | EFI_NOT_READY prior to starting Procedure on the target AP.\r | |
| 1340 | \r | |
| 1341 | @retval EFI_INVALID_PARAMETER CpuNumber not valid\r | |
| 1342 | @retval EFI_INVALID_PARAMETER CpuNumber specifying BSP\r | |
| 1343 | @retval EFI_INVALID_PARAMETER The AP specified by CpuNumber did not enter SMM\r | |
| 1344 | @retval EFI_INVALID_PARAMETER The AP specified by CpuNumber is busy\r | |
| 1345 | @retval EFI_SUCCESS The procedure has been successfully scheduled\r | |
| 1346 | \r | |
| 1347 | **/\r | |
| 1348 | EFI_STATUS\r | |
| 1349 | InternalSmmStartupThisAp (\r | |
| 053e878b MK |
1350 | IN EFI_AP_PROCEDURE2 Procedure,\r |
| 1351 | IN UINTN CpuIndex,\r | |
| 1352 | IN OUT VOID *ProcArguments OPTIONAL,\r | |
| 1353 | IN OUT MM_COMPLETION *Token,\r | |
| 1354 | IN UINTN TimeoutInMicroseconds,\r | |
| 1355 | IN OUT EFI_STATUS *CpuStatus\r | |
| 51dd408a ED |
1356 | );\r |
| 1357 | \r | |
| 1358 | /**\r | |
| 1359 | Checks whether the input token is the current used token.\r | |
| 1360 | \r | |
| 1361 | @param[in] Token This parameter describes the token that was passed into DispatchProcedure or\r | |
| 1362 | BroadcastProcedure.\r | |
| 1363 | \r | |
| 1364 | @retval TRUE The input token is the current used token.\r | |
| 1365 | @retval FALSE The input token is not the current used token.\r | |
| 1366 | **/\r | |
| 1367 | BOOLEAN\r | |
| 1368 | IsTokenInUse (\r | |
| 053e878b | 1369 | IN SPIN_LOCK *Token\r |
| 51dd408a ED |
1370 | );\r |
| 1371 | \r | |
| 1372 | /**\r | |
| 1373 | Checks status of specified AP.\r | |
| 1374 | \r | |
| 1375 | This function checks whether the specified AP has finished the task assigned\r | |
| 1376 | by StartupThisAP(), and whether timeout expires.\r | |
| 1377 | \r | |
| 1378 | @param[in] Token This parameter describes the token that was passed into DispatchProcedure or\r | |
| 1379 | BroadcastProcedure.\r | |
| 1380 | \r | |
| 1381 | @retval EFI_SUCCESS Specified AP has finished task assigned by StartupThisAPs().\r | |
| 1382 | @retval EFI_NOT_READY Specified AP has not finished task and timeout has not expired.\r | |
| 1383 | **/\r | |
| 1384 | EFI_STATUS\r | |
| 1385 | IsApReady (\r | |
| 1386 | IN SPIN_LOCK *Token\r | |
| 1387 | );\r | |
| 1388 | \r | |
| 1389 | /**\r | |
| 1390 | Check whether it is an present AP.\r | |
| 1391 | \r | |
| 1392 | @param CpuIndex The AP index which calls this function.\r | |
| 1393 | \r | |
| 1394 | @retval TRUE It's a present AP.\r | |
| 1395 | @retval TRUE This is not an AP or it is not present.\r | |
| 1396 | \r | |
| 1397 | **/\r | |
| 1398 | BOOLEAN\r | |
| 1399 | IsPresentAp (\r | |
| 053e878b | 1400 | IN UINTN CpuIndex\r |
| 51dd408a ED |
1401 | );\r |
| 1402 | \r | |
| 1403 | /**\r | |
| 1404 | Worker function to execute a caller provided function on all enabled APs.\r | |
| 1405 | \r | |
| 1406 | @param[in] Procedure A pointer to the function to be run on\r | |
| 1407 | enabled APs of the system.\r | |
| 1408 | @param[in] TimeoutInMicroseconds Indicates the time limit in microseconds for\r | |
| 1409 | APs to return from Procedure, either for\r | |
| 1410 | blocking or non-blocking mode.\r | |
| 5ed4c46f | 1411 | @param[in,out] ProcedureArguments The parameter passed into Procedure for\r |
| 51dd408a ED |
1412 | all APs.\r |
| 1413 | @param[in,out] Token This is an optional parameter that allows the caller to execute the\r | |
| 1414 | procedure in a blocking or non-blocking fashion. If it is NULL the\r | |
| 1415 | call is blocking, and the call will not return until the AP has\r | |
| 1416 | completed the procedure. If the token is not NULL, the call will\r | |
| 1417 | return immediately. The caller can check whether the procedure has\r | |
| 1418 | completed with CheckOnProcedure or WaitForProcedure.\r | |
| 1419 | @param[in,out] CPUStatus This optional pointer may be used to get the status code returned\r | |
| 1420 | by Procedure when it completes execution on the target AP, or with\r | |
| 1421 | EFI_TIMEOUT if the Procedure fails to complete within the optional\r | |
| 1422 | timeout. The implementation will update this variable with\r | |
| 1423 | EFI_NOT_READY prior to starting Procedure on the target AP.\r | |
| 1424 | \r | |
| 1425 | @retval EFI_SUCCESS In blocking mode, all APs have finished before\r | |
| 1426 | the timeout expired.\r | |
| 1427 | @retval EFI_SUCCESS In non-blocking mode, function has been dispatched\r | |
| 1428 | to all enabled APs.\r | |
| 1429 | @retval others Failed to Startup all APs.\r | |
| 1430 | \r | |
| 1431 | **/\r | |
| 1432 | EFI_STATUS\r | |
| 1433 | InternalSmmStartupAllAPs (\r | |
| 053e878b MK |
1434 | IN EFI_AP_PROCEDURE2 Procedure,\r |
| 1435 | IN UINTN TimeoutInMicroseconds,\r | |
| 1436 | IN OUT VOID *ProcedureArguments OPTIONAL,\r | |
| 1437 | IN OUT MM_COMPLETION *Token,\r | |
| 1438 | IN OUT EFI_STATUS *CPUStatus\r | |
| 51dd408a ED |
1439 | );\r |
| 1440 | \r | |
| 1441 | /**\r | |
| 1442 | \r | |
| 1443 | Register the SMM Foundation entry point.\r | |
| 1444 | \r | |
| 1445 | @param[in] Procedure A pointer to the code stream to be run on the designated target AP\r | |
| 1446 | of the system. Type EFI_AP_PROCEDURE is defined below in Volume 2\r | |
| 1447 | with the related definitions of\r | |
| 1448 | EFI_MP_SERVICES_PROTOCOL.StartupAllAPs.\r | |
| 1449 | If caller may pass a value of NULL to deregister any existing\r | |
| 1450 | startup procedure.\r | |
| 1451 | @param[in,out] ProcedureArguments Allows the caller to pass a list of parameters to the code that is\r | |
| 1452 | run by the AP. It is an optional common mailbox between APs and\r | |
| 1453 | the caller to share information\r | |
| 1454 | \r | |
| 1455 | @retval EFI_SUCCESS The Procedure has been set successfully.\r | |
| 1456 | @retval EFI_INVALID_PARAMETER The Procedure is NULL but ProcedureArguments not NULL.\r | |
| 1457 | \r | |
| 1458 | **/\r | |
| 1459 | EFI_STATUS\r | |
| 1460 | RegisterStartupProcedure (\r | |
| 053e878b MK |
1461 | IN EFI_AP_PROCEDURE Procedure,\r |
| 1462 | IN OUT VOID *ProcedureArguments OPTIONAL\r | |
| 51dd408a ED |
1463 | );\r |
| 1464 | \r | |
| 1465 | /**\r | |
| 1466 | Allocate buffer for SpinLock and Wrapper function buffer.\r | |
| 1467 | \r | |
| 1468 | **/\r | |
| 1469 | VOID\r | |
| 1470 | InitializeDataForMmMp (\r | |
| 1471 | VOID\r | |
| 1472 | );\r | |
| 1473 | \r | |
| 79186ddc RN |
1474 | /**\r |
| 1475 | Return whether access to non-SMRAM is restricted.\r | |
| 1476 | \r | |
| 1477 | @retval TRUE Access to non-SMRAM is restricted.\r | |
| 1478 | @retval FALSE Access to non-SMRAM is not restricted.\r | |
| 9c33f16f | 1479 | **/\r |
| 79186ddc RN |
1480 | BOOLEAN\r |
| 1481 | IsRestrictedMemoryAccess (\r | |
| 1482 | VOID\r | |
| 1483 | );\r | |
| 1484 | \r | |
| 4a68176c LZ |
1485 | /**\r |
| 1486 | Choose blocking or non-blocking mode to Wait for all APs.\r | |
| 1487 | \r | |
| 1488 | @param[in] This A pointer to the EDKII_SMM_CPU_RENDEZVOUS_PROTOCOL instance.\r | |
| 1489 | @param[in] BlockingMode Blocking or non-blocking mode.\r | |
| 1490 | \r | |
| 1491 | @retval EFI_SUCCESS All APs have arrived SMM mode except SMI disabled APs.\r | |
| 1492 | @retval EFI_TIMEOUT There are APs not in SMM mode in given timeout constraint.\r | |
| 1493 | \r | |
| 1494 | **/\r | |
| 1495 | EFI_STATUS\r | |
| 1496 | EFIAPI\r | |
| 1497 | SmmCpuRendezvous (\r | |
| 1498 | IN EDKII_SMM_CPU_RENDEZVOUS_PROTOCOL *This,\r | |
| 1499 | IN BOOLEAN BlockingMode\r | |
| 1500 | );\r | |
| 1501 | \r | |
| 1502 | /**\r | |
| 1503 | Insure when this function returns, no AP will execute normal mode code before entering SMM, except SMI disabled APs.\r | |
| 1504 | \r | |
| 1505 | **/\r | |
| 1506 | VOID\r | |
| 1507 | SmmWaitForApArrival (\r | |
| 1508 | VOID\r | |
| 1509 | );\r | |
| 1510 | \r | |
| 529a5a86 | 1511 | #endif\r |