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 | |
| 46 | #include <Library/UefiCpuLib.h>\r | |
| 47 | #include <Library/CpuExceptionHandlerLib.h>\r | |
| 48 | #include <Library/ReportStatusCodeLib.h>\r | |
| 49 | #include <Library/SmmCpuFeaturesLib.h>\r | |
| 50 | #include <Library/PeCoffGetEntryPointLib.h>\r | |
| 93324390 | 51 | #include <Library/RegisterCpuFeaturesLib.h>\r |
| 529a5a86 MK |
52 | \r |
| 53 | #include <AcpiCpuData.h>\r | |
| 54 | #include <CpuHotPlugData.h>\r | |
| 55 | \r | |
| 01acb06c RN |
56 | #include <Register/Intel/Cpuid.h>\r |
| 57 | #include <Register/Intel/Msr.h>\r | |
| 529a5a86 MK |
58 | \r |
| 59 | #include "CpuService.h"\r | |
| 60 | #include "SmmProfile.h"\r | |
| 61 | \r | |
| 3eb69b08 JY |
62 | //\r |
| 63 | // CET definition\r | |
| 64 | //\r | |
| 65 | #define CPUID_CET_SS BIT7\r | |
| 66 | #define CPUID_CET_IBT BIT20\r | |
| 67 | \r | |
| 68 | #define CR4_CET_ENABLE BIT23\r | |
| 69 | \r | |
| 70 | #define MSR_IA32_S_CET 0x6A2\r | |
| 71 | #define MSR_IA32_PL0_SSP 0x6A4\r | |
| 72 | #define MSR_IA32_INTERRUPT_SSP_TABLE_ADDR 0x6A8\r | |
| 73 | \r | |
| 74 | typedef union {\r | |
| 75 | struct {\r | |
| 76 | // enable shadow stacks\r | |
| 053e878b | 77 | UINT32 SH_STK_ENP : 1;\r |
| 3eb69b08 | 78 | // enable the WRSS{D,Q}W instructions.\r |
| 053e878b | 79 | UINT32 WR_SHSTK_EN : 1;\r |
| 3eb69b08 | 80 | // enable tracking of indirect call/jmp targets to be ENDBRANCH instruction.\r |
| 053e878b | 81 | UINT32 ENDBR_EN : 1;\r |
| 3eb69b08 | 82 | // enable legacy compatibility treatment for indirect call/jmp tracking.\r |
| 053e878b | 83 | UINT32 LEG_IW_EN : 1;\r |
| 3eb69b08 | 84 | // enable use of no-track prefix on indirect call/jmp.\r |
| 053e878b | 85 | UINT32 NO_TRACK_EN : 1;\r |
| 3eb69b08 | 86 | // disable suppression of CET indirect branch tracking on legacy compatibility.\r |
| 053e878b MK |
87 | UINT32 SUPPRESS_DIS : 1;\r |
| 88 | UINT32 RSVD : 4;\r | |
| 3eb69b08 JY |
89 | // indirect branch tracking is suppressed.\r |
| 90 | // This bit can be written to 1 only if TRACKER is written as IDLE.\r | |
| 053e878b | 91 | UINT32 SUPPRESS : 1;\r |
| 3eb69b08 JY |
92 | // Value of the endbranch state machine\r |
| 93 | // Values: IDLE (0), WAIT_FOR_ENDBRANCH(1).\r | |
| 053e878b | 94 | UINT32 TRACKER : 1;\r |
| 3eb69b08 JY |
95 | // linear address of a bitmap in memory indicating valid\r |
| 96 | // pages as target of CALL/JMP_indirect that do not land on ENDBRANCH when CET is enabled\r | |
| 97 | // and not suppressed. Valid when ENDBR_EN is 1. Must be machine canonical when written on\r | |
| 98 | // parts that support 64 bit mode. On parts that do not support 64 bit mode, the bits 63:32 are\r | |
| 99 | // reserved and must be 0. This value is extended by 12 bits at the low end to form the base address\r | |
| 100 | // (this automatically aligns the address on a 4-Kbyte boundary).\r | |
| 053e878b MK |
101 | UINT32 EB_LEG_BITMAP_BASE_low : 12;\r |
| 102 | UINT32 EB_LEG_BITMAP_BASE_high : 32;\r | |
| 3eb69b08 | 103 | } Bits;\r |
| 053e878b | 104 | UINT64 Uint64;\r |
| 3eb69b08 JY |
105 | } MSR_IA32_CET;\r |
| 106 | \r | |
| 529a5a86 MK |
107 | //\r |
| 108 | // MSRs required for configuration of SMM Code Access Check\r | |
| 109 | //\r | |
| 053e878b MK |
110 | #define EFI_MSR_SMM_MCA_CAP 0x17D\r |
| 111 | #define SMM_CODE_ACCESS_CHK_BIT BIT58\r | |
| 529a5a86 | 112 | \r |
| 053e878b MK |
113 | #define SMM_FEATURE_CONTROL_LOCK_BIT BIT0\r |
| 114 | #define SMM_CODE_CHK_EN_BIT BIT2\r | |
| 529a5a86 MK |
115 | \r |
| 116 | ///\r | |
| 117 | /// Page Table Entry\r | |
| 118 | ///\r | |
| 053e878b MK |
119 | #define IA32_PG_P BIT0\r |
| 120 | #define IA32_PG_RW BIT1\r | |
| 121 | #define IA32_PG_U BIT2\r | |
| 122 | #define IA32_PG_WT BIT3\r | |
| 123 | #define IA32_PG_CD BIT4\r | |
| 124 | #define IA32_PG_A BIT5\r | |
| 125 | #define IA32_PG_D BIT6\r | |
| 126 | #define IA32_PG_PS BIT7\r | |
| 127 | #define IA32_PG_PAT_2M BIT12\r | |
| 128 | #define IA32_PG_PAT_4K IA32_PG_PS\r | |
| 129 | #define IA32_PG_PMNT BIT62\r | |
| 130 | #define IA32_PG_NX BIT63\r | |
| 131 | \r | |
| 132 | #define PAGE_ATTRIBUTE_BITS (IA32_PG_D | IA32_PG_A | IA32_PG_U | IA32_PG_RW | IA32_PG_P)\r | |
| 881520ea JY |
133 | //\r |
| 134 | // Bits 1, 2, 5, 6 are reserved in the IA32 PAE PDPTE\r | |
| 135 | // X64 PAE PDPTE does not have such restriction\r | |
| 136 | //\r | |
| 053e878b | 137 | #define IA32_PAE_PDPTE_ATTRIBUTE_BITS (IA32_PG_P)\r |
| 881520ea | 138 | \r |
| 053e878b | 139 | #define PAGE_PROGATE_BITS (IA32_PG_NX | PAGE_ATTRIBUTE_BITS)\r |
| 717fb604 JY |
140 | \r |
| 141 | #define PAGING_4K_MASK 0xFFF\r | |
| 142 | #define PAGING_2M_MASK 0x1FFFFF\r | |
| 143 | #define PAGING_1G_MASK 0x3FFFFFFF\r | |
| 144 | \r | |
| 145 | #define PAGING_PAE_INDEX_MASK 0x1FF\r | |
| 146 | \r | |
| 053e878b MK |
147 | #define PAGING_4K_ADDRESS_MASK_64 0x000FFFFFFFFFF000ull\r |
| 148 | #define PAGING_2M_ADDRESS_MASK_64 0x000FFFFFFFE00000ull\r | |
| 149 | #define PAGING_1G_ADDRESS_MASK_64 0x000FFFFFC0000000ull\r | |
| 717fb604 | 150 | \r |
| 053e878b | 151 | #define SMRR_MAX_ADDRESS BASE_4GB\r |
| 7ed6f781 | 152 | \r |
| 717fb604 JY |
153 | typedef enum {\r |
| 154 | PageNone,\r | |
| 155 | Page4K,\r | |
| 156 | Page2M,\r | |
| 157 | Page1G,\r | |
| 158 | } PAGE_ATTRIBUTE;\r | |
| 159 | \r | |
| 160 | typedef struct {\r | |
| 053e878b MK |
161 | PAGE_ATTRIBUTE Attribute;\r |
| 162 | UINT64 Length;\r | |
| 163 | UINT64 AddressMask;\r | |
| 717fb604 JY |
164 | } PAGE_ATTRIBUTE_TABLE;\r |
| 165 | \r | |
| 529a5a86 MK |
166 | //\r |
| 167 | // Size of Task-State Segment defined in IA32 Manual\r | |
| 168 | //\r | |
| 053e878b MK |
169 | #define TSS_SIZE 104\r |
| 170 | #define EXCEPTION_TSS_SIZE (TSS_SIZE + 4) // Add 4 bytes SSP\r | |
| 171 | #define TSS_X64_IST1_OFFSET 36\r | |
| 172 | #define TSS_IA32_CR3_OFFSET 28\r | |
| 173 | #define TSS_IA32_ESP_OFFSET 56\r | |
| 174 | #define TSS_IA32_SSP_OFFSET 104\r | |
| 529a5a86 | 175 | \r |
| 053e878b | 176 | #define CR0_WP BIT16\r |
| 717fb604 | 177 | \r |
| 529a5a86 MK |
178 | //\r |
| 179 | // Code select value\r | |
| 180 | //\r | |
| 053e878b MK |
181 | #define PROTECT_MODE_CODE_SEGMENT 0x08\r |
| 182 | #define LONG_MODE_CODE_SEGMENT 0x38\r | |
| 529a5a86 MK |
183 | \r |
| 184 | //\r | |
| 185 | // The size 0x20 must be bigger than\r | |
| 186 | // the size of template code of SmmInit. Currently,\r | |
| 187 | // the size of SmmInit requires the 0x16 Bytes buffer\r | |
| 188 | // at least.\r | |
| 189 | //\r | |
| 190 | #define BACK_BUF_SIZE 0x20\r | |
| 191 | \r | |
| 053e878b | 192 | #define EXCEPTION_VECTOR_NUMBER 0x20\r |
| 529a5a86 | 193 | \r |
| 053e878b | 194 | #define INVALID_APIC_ID 0xFFFFFFFFFFFFFFFFULL\r |
| 529a5a86 | 195 | \r |
| 053e878b MK |
196 | typedef UINT32 SMM_CPU_ARRIVAL_EXCEPTIONS;\r |
| 197 | #define ARRIVAL_EXCEPTION_BLOCKED 0x1\r | |
| 198 | #define ARRIVAL_EXCEPTION_DELAYED 0x2\r | |
| 199 | #define ARRIVAL_EXCEPTION_SMI_DISABLED 0x4\r | |
| 529a5a86 | 200 | \r |
| 51dd408a ED |
201 | //\r |
| 202 | // Wrapper used to convert EFI_AP_PROCEDURE2 and EFI_AP_PROCEDURE.\r | |
| 203 | //\r | |
| 204 | typedef struct {\r | |
| 053e878b MK |
205 | EFI_AP_PROCEDURE Procedure;\r |
| 206 | VOID *ProcedureArgument;\r | |
| 51dd408a ED |
207 | } PROCEDURE_WRAPPER;\r |
| 208 | \r | |
| 209 | #define PROCEDURE_TOKEN_SIGNATURE SIGNATURE_32 ('P', 'R', 'T', 'S')\r | |
| 210 | \r | |
| 211 | typedef struct {\r | |
| 053e878b MK |
212 | UINTN Signature;\r |
| 213 | LIST_ENTRY Link;\r | |
| 51dd408a | 214 | \r |
| 053e878b MK |
215 | SPIN_LOCK *SpinLock;\r |
| 216 | volatile UINT32 RunningApCount;\r | |
| 51dd408a ED |
217 | } PROCEDURE_TOKEN;\r |
| 218 | \r | |
| 219 | #define PROCEDURE_TOKEN_FROM_LINK(a) CR (a, PROCEDURE_TOKEN, Link, PROCEDURE_TOKEN_SIGNATURE)\r | |
| 220 | \r | |
| 9caaa79d ED |
221 | #define TOKEN_BUFFER_SIGNATURE SIGNATURE_32 ('T', 'K', 'B', 'S')\r |
| 222 | \r | |
| 223 | typedef struct {\r | |
| 053e878b MK |
224 | UINTN Signature;\r |
| 225 | LIST_ENTRY Link;\r | |
| 9caaa79d | 226 | \r |
| 053e878b | 227 | UINT8 *Buffer;\r |
| 9caaa79d ED |
228 | } TOKEN_BUFFER;\r |
| 229 | \r | |
| 230 | #define TOKEN_BUFFER_FROM_LINK(a) CR (a, TOKEN_BUFFER, Link, TOKEN_BUFFER_SIGNATURE)\r | |
| 231 | \r | |
| 529a5a86 MK |
232 | //\r |
| 233 | // Private structure for the SMM CPU module that is stored in DXE Runtime memory\r | |
| 234 | // Contains the SMM Configuration Protocols that is produced.\r | |
| 235 | // Contains a mix of DXE and SMM contents. All the fields must be used properly.\r | |
| 236 | //\r | |
| 237 | #define SMM_CPU_PRIVATE_DATA_SIGNATURE SIGNATURE_32 ('s', 'c', 'p', 'u')\r | |
| 238 | \r | |
| 239 | typedef struct {\r | |
| 053e878b | 240 | UINTN Signature;\r |
| 529a5a86 | 241 | \r |
| 053e878b | 242 | EFI_HANDLE SmmCpuHandle;\r |
| 529a5a86 | 243 | \r |
| 053e878b MK |
244 | EFI_PROCESSOR_INFORMATION *ProcessorInfo;\r |
| 245 | SMM_CPU_OPERATION *Operation;\r | |
| 246 | UINTN *CpuSaveStateSize;\r | |
| 247 | VOID **CpuSaveState;\r | |
| 529a5a86 | 248 | \r |
| 053e878b MK |
249 | EFI_SMM_RESERVED_SMRAM_REGION SmmReservedSmramRegion[1];\r |
| 250 | EFI_SMM_ENTRY_CONTEXT SmmCoreEntryContext;\r | |
| 251 | EFI_SMM_ENTRY_POINT SmmCoreEntry;\r | |
| 529a5a86 | 252 | \r |
| 053e878b | 253 | EFI_SMM_CONFIGURATION_PROTOCOL SmmConfiguration;\r |
| 51dd408a | 254 | \r |
| 053e878b MK |
255 | PROCEDURE_WRAPPER *ApWrapperFunc;\r |
| 256 | LIST_ENTRY TokenList;\r | |
| 257 | LIST_ENTRY *FirstFreeToken;\r | |
| 529a5a86 MK |
258 | } SMM_CPU_PRIVATE_DATA;\r |
| 259 | \r | |
| 260 | extern SMM_CPU_PRIVATE_DATA *gSmmCpuPrivate;\r | |
| 053e878b MK |
261 | extern CPU_HOT_PLUG_DATA mCpuHotPlugData;\r |
| 262 | extern UINTN mMaxNumberOfCpus;\r | |
| 263 | extern UINTN mNumberOfCpus;\r | |
| 264 | extern EFI_SMM_CPU_PROTOCOL mSmmCpu;\r | |
| 265 | extern EFI_MM_MP_PROTOCOL mSmmMp;\r | |
| 266 | extern UINTN mInternalCr3;\r | |
| 529a5a86 MK |
267 | \r |
| 268 | ///\r | |
| 269 | /// The mode of the CPU at the time an SMI occurs\r | |
| 270 | ///\r | |
| 271 | extern UINT8 mSmmSaveStateRegisterLma;\r | |
| 272 | \r | |
| 529a5a86 MK |
273 | //\r |
| 274 | // SMM CPU Protocol function prototypes.\r | |
| 275 | //\r | |
| 276 | \r | |
| 277 | /**\r | |
| 278 | Read information from the CPU save state.\r | |
| 279 | \r | |
| 280 | @param This EFI_SMM_CPU_PROTOCOL instance\r | |
| 281 | @param Width The number of bytes to read from the CPU save state.\r | |
| 282 | @param Register Specifies the CPU register to read form the save state.\r | |
| 283 | @param CpuIndex Specifies the zero-based index of the CPU save state\r | |
| 284 | @param Buffer Upon return, this holds the CPU register value read from the save state.\r | |
| 285 | \r | |
| 286 | @retval EFI_SUCCESS The register was read from Save State\r | |
| 287 | @retval EFI_NOT_FOUND The register is not defined for the Save State of Processor\r | |
| ef62da4f | 288 | @retval EFI_INVALID_PARAMETER This or Buffer is NULL.\r |
| 529a5a86 MK |
289 | \r |
| 290 | **/\r | |
| 291 | EFI_STATUS\r | |
| 292 | EFIAPI\r | |
| 293 | SmmReadSaveState (\r | |
| 053e878b MK |
294 | IN CONST EFI_SMM_CPU_PROTOCOL *This,\r |
| 295 | IN UINTN Width,\r | |
| 296 | IN EFI_SMM_SAVE_STATE_REGISTER Register,\r | |
| 297 | IN UINTN CpuIndex,\r | |
| 298 | OUT VOID *Buffer\r | |
| 529a5a86 MK |
299 | );\r |
| 300 | \r | |
| 301 | /**\r | |
| 302 | Write data to the CPU save state.\r | |
| 303 | \r | |
| 304 | @param This EFI_SMM_CPU_PROTOCOL instance\r | |
| 305 | @param Width The number of bytes to read from the CPU save state.\r | |
| 306 | @param Register Specifies the CPU register to write to the save state.\r | |
| 307 | @param CpuIndex Specifies the zero-based index of the CPU save state\r | |
| 308 | @param Buffer Upon entry, this holds the new CPU register value.\r | |
| 309 | \r | |
| 310 | @retval EFI_SUCCESS The register was written from Save State\r | |
| 311 | @retval EFI_NOT_FOUND The register is not defined for the Save State of Processor\r | |
| ef62da4f | 312 | @retval EFI_INVALID_PARAMETER ProcessorIndex or Width is not correct\r |
| 529a5a86 MK |
313 | \r |
| 314 | **/\r | |
| 315 | EFI_STATUS\r | |
| 316 | EFIAPI\r | |
| 317 | SmmWriteSaveState (\r | |
| 053e878b MK |
318 | IN CONST EFI_SMM_CPU_PROTOCOL *This,\r |
| 319 | IN UINTN Width,\r | |
| 320 | IN EFI_SMM_SAVE_STATE_REGISTER Register,\r | |
| 321 | IN UINTN CpuIndex,\r | |
| 322 | IN CONST VOID *Buffer\r | |
| 529a5a86 MK |
323 | );\r |
| 324 | \r | |
| 325 | /**\r | |
| 326 | Read a CPU Save State register on the target processor.\r | |
| 327 | \r | |
| 328 | This function abstracts the differences that whether the CPU Save State register is in the\r | |
| 329 | IA32 CPU Save State Map or X64 CPU Save State Map.\r | |
| 330 | \r | |
| 331 | This function supports reading a CPU Save State register in SMBase relocation handler.\r | |
| 332 | \r | |
| 333 | @param[in] CpuIndex Specifies the zero-based index of the CPU save state.\r | |
| 334 | @param[in] RegisterIndex Index into mSmmCpuWidthOffset[] look up table.\r | |
| 335 | @param[in] Width The number of bytes to read from the CPU save state.\r | |
| 336 | @param[out] Buffer Upon return, this holds the CPU register value read from the save state.\r | |
| 337 | \r | |
| 338 | @retval EFI_SUCCESS The register was read from Save State.\r | |
| 339 | @retval EFI_NOT_FOUND The register is not defined for the Save State of Processor.\r | |
| a7d8e28b | 340 | @retval EFI_INVALID_PARAMETER Buffer is NULL, or Width does not meet requirement per Register type.\r |
| 529a5a86 MK |
341 | \r |
| 342 | **/\r | |
| 343 | EFI_STATUS\r | |
| 344 | EFIAPI\r | |
| 345 | ReadSaveStateRegister (\r | |
| 346 | IN UINTN CpuIndex,\r | |
| 347 | IN EFI_SMM_SAVE_STATE_REGISTER Register,\r | |
| 348 | IN UINTN Width,\r | |
| 349 | OUT VOID *Buffer\r | |
| 350 | );\r | |
| 351 | \r | |
| 352 | /**\r | |
| 353 | Write value to a CPU Save State register on the target processor.\r | |
| 354 | \r | |
| 355 | This function abstracts the differences that whether the CPU Save State register is in the\r | |
| 356 | IA32 CPU Save State Map or X64 CPU Save State Map.\r | |
| 357 | \r | |
| 358 | This function supports writing a CPU Save State register in SMBase relocation handler.\r | |
| 359 | \r | |
| 360 | @param[in] CpuIndex Specifies the zero-based index of the CPU save state.\r | |
| 361 | @param[in] RegisterIndex Index into mSmmCpuWidthOffset[] look up table.\r | |
| 362 | @param[in] Width The number of bytes to read from the CPU save state.\r | |
| 363 | @param[in] Buffer Upon entry, this holds the new CPU register value.\r | |
| 364 | \r | |
| 365 | @retval EFI_SUCCESS The register was written to Save State.\r | |
| 366 | @retval EFI_NOT_FOUND The register is not defined for the Save State of Processor.\r | |
| ef62da4f | 367 | @retval EFI_INVALID_PARAMETER ProcessorIndex or Width is not correct.\r |
| 529a5a86 MK |
368 | \r |
| 369 | **/\r | |
| 370 | EFI_STATUS\r | |
| 371 | EFIAPI\r | |
| 372 | WriteSaveStateRegister (\r | |
| 373 | IN UINTN CpuIndex,\r | |
| 374 | IN EFI_SMM_SAVE_STATE_REGISTER Register,\r | |
| 375 | IN UINTN Width,\r | |
| 376 | IN CONST VOID *Buffer\r | |
| 377 | );\r | |
| 378 | \r | |
| 053e878b MK |
379 | extern CONST UINT8 gcSmmInitTemplate[];\r |
| 380 | extern CONST UINT16 gcSmmInitSize;\r | |
| 381 | X86_ASSEMBLY_PATCH_LABEL gPatchSmmCr0;\r | |
| 382 | extern UINT32 mSmmCr0;\r | |
| 383 | X86_ASSEMBLY_PATCH_LABEL gPatchSmmCr3;\r | |
| 384 | extern UINT32 mSmmCr4;\r | |
| 385 | X86_ASSEMBLY_PATCH_LABEL gPatchSmmCr4;\r | |
| 386 | X86_ASSEMBLY_PATCH_LABEL gPatchSmmInitStack;\r | |
| 387 | X86_ASSEMBLY_PATCH_LABEL mPatchCetSupported;\r | |
| 388 | extern BOOLEAN mCetSupported;\r | |
| 529a5a86 MK |
389 | \r |
| 390 | /**\r | |
| 391 | Semaphore operation for all processor relocate SMMBase.\r | |
| 392 | **/\r | |
| 393 | VOID\r | |
| 394 | EFIAPI\r | |
| 395 | SmmRelocationSemaphoreComplete (\r | |
| 396 | VOID\r | |
| 397 | );\r | |
| 398 | \r | |
| 399 | ///\r | |
| 400 | /// The type of SMM CPU Information\r | |
| 401 | ///\r | |
| 402 | typedef struct {\r | |
| 053e878b MK |
403 | SPIN_LOCK *Busy;\r |
| 404 | volatile EFI_AP_PROCEDURE2 Procedure;\r | |
| 405 | volatile VOID *Parameter;\r | |
| 406 | volatile UINT32 *Run;\r | |
| 407 | volatile BOOLEAN *Present;\r | |
| 408 | PROCEDURE_TOKEN *Token;\r | |
| 409 | EFI_STATUS *Status;\r | |
| 529a5a86 MK |
410 | } SMM_CPU_DATA_BLOCK;\r |
| 411 | \r | |
| 412 | typedef enum {\r | |
| 413 | SmmCpuSyncModeTradition,\r | |
| 414 | SmmCpuSyncModeRelaxedAp,\r | |
| 415 | SmmCpuSyncModeMax\r | |
| 416 | } SMM_CPU_SYNC_MODE;\r | |
| 417 | \r | |
| 418 | typedef struct {\r | |
| 419 | //\r | |
| 420 | // Pointer to an array. The array should be located immediately after this structure\r | |
| 421 | // so that UC cache-ability can be set together.\r | |
| 422 | //\r | |
| 423 | SMM_CPU_DATA_BLOCK *CpuData;\r | |
| fe3a75bc | 424 | volatile UINT32 *Counter;\r |
| 529a5a86 | 425 | volatile UINT32 BspIndex;\r |
| fe3a75bc JF |
426 | volatile BOOLEAN *InsideSmm;\r |
| 427 | volatile BOOLEAN *AllCpusInSync;\r | |
| 529a5a86 MK |
428 | volatile SMM_CPU_SYNC_MODE EffectiveSyncMode;\r |
| 429 | volatile BOOLEAN SwitchBsp;\r | |
| 430 | volatile BOOLEAN *CandidateBsp;\r | |
| 4a68176c | 431 | volatile BOOLEAN AllApArrivedWithException;\r |
| 51dd408a ED |
432 | EFI_AP_PROCEDURE StartupProcedure;\r |
| 433 | VOID *StartupProcArgs;\r | |
| 529a5a86 MK |
434 | } SMM_DISPATCHER_MP_SYNC_DATA;\r |
| 435 | \r | |
| 053e878b | 436 | #define SMM_PSD_OFFSET 0xfb00\r |
| 529a5a86 | 437 | \r |
| 1d648531 JF |
438 | ///\r |
| 439 | /// All global semaphores' pointer\r | |
| 440 | ///\r | |
| 441 | typedef struct {\r | |
| 053e878b MK |
442 | volatile UINT32 *Counter;\r |
| 443 | volatile BOOLEAN *InsideSmm;\r | |
| 444 | volatile BOOLEAN *AllCpusInSync;\r | |
| 445 | SPIN_LOCK *PFLock;\r | |
| 446 | SPIN_LOCK *CodeAccessCheckLock;\r | |
| 1d648531 JF |
447 | } SMM_CPU_SEMAPHORE_GLOBAL;\r |
| 448 | \r | |
| 4e920581 JF |
449 | ///\r |
| 450 | /// All semaphores for each processor\r | |
| 451 | ///\r | |
| 452 | typedef struct {\r | |
| 053e878b MK |
453 | SPIN_LOCK *Busy;\r |
| 454 | volatile UINT32 *Run;\r | |
| 455 | volatile BOOLEAN *Present;\r | |
| 456 | SPIN_LOCK *Token;\r | |
| 4e920581 JF |
457 | } SMM_CPU_SEMAPHORE_CPU;\r |
| 458 | \r | |
| 1d648531 JF |
459 | ///\r |
| 460 | /// All semaphores' information\r | |
| 461 | ///\r | |
| 462 | typedef struct {\r | |
| 053e878b MK |
463 | SMM_CPU_SEMAPHORE_GLOBAL SemaphoreGlobal;\r |
| 464 | SMM_CPU_SEMAPHORE_CPU SemaphoreCpu;\r | |
| 1d648531 JF |
465 | } SMM_CPU_SEMAPHORES;\r |
| 466 | \r | |
| 053e878b MK |
467 | extern IA32_DESCRIPTOR gcSmiGdtr;\r |
| 468 | extern EFI_PHYSICAL_ADDRESS mGdtBuffer;\r | |
| 469 | extern UINTN mGdtBufferSize;\r | |
| 470 | extern IA32_DESCRIPTOR gcSmiIdtr;\r | |
| 471 | extern VOID *gcSmiIdtrPtr;\r | |
| 472 | extern UINT64 gPhyMask;\r | |
| 473 | extern SMM_DISPATCHER_MP_SYNC_DATA *mSmmMpSyncData;\r | |
| 474 | extern UINTN mSmmStackArrayBase;\r | |
| 475 | extern UINTN mSmmStackArrayEnd;\r | |
| 476 | extern UINTN mSmmStackSize;\r | |
| 477 | extern EFI_SMM_CPU_SERVICE_PROTOCOL mSmmCpuService;\r | |
| 478 | extern IA32_DESCRIPTOR gcSmiInitGdtr;\r | |
| 479 | extern SMM_CPU_SEMAPHORES mSmmCpuSemaphores;\r | |
| 480 | extern UINTN mSemaphoreSize;\r | |
| 481 | extern SPIN_LOCK *mPFLock;\r | |
| 482 | extern SPIN_LOCK *mConfigSmmCodeAccessCheckLock;\r | |
| 483 | extern EFI_SMRAM_DESCRIPTOR *mSmmCpuSmramRanges;\r | |
| 484 | extern UINTN mSmmCpuSmramRangeCount;\r | |
| 485 | extern UINT8 mPhysicalAddressBits;\r | |
| 529a5a86 | 486 | \r |
| 241f9149 LD |
487 | //\r |
| 488 | // Copy of the PcdPteMemoryEncryptionAddressOrMask\r | |
| 489 | //\r | |
| 490 | extern UINT64 mAddressEncMask;\r | |
| 491 | \r | |
| 529a5a86 MK |
492 | /**\r |
| 493 | Create 4G PageTable in SMRAM.\r | |
| 494 | \r | |
| 717fb604 | 495 | @param[in] Is32BitPageTable Whether the page table is 32-bit PAE\r |
| 529a5a86 MK |
496 | @return PageTable Address\r |
| 497 | \r | |
| 498 | **/\r | |
| 499 | UINT32\r | |
| 500 | Gen4GPageTable (\r | |
| 053e878b | 501 | IN BOOLEAN Is32BitPageTable\r |
| 529a5a86 MK |
502 | );\r |
| 503 | \r | |
| 529a5a86 MK |
504 | /**\r |
| 505 | Initialize global data for MP synchronization.\r | |
| 506 | \r | |
| 3eb69b08 JY |
507 | @param Stacks Base address of SMI stack buffer for all processors.\r |
| 508 | @param StackSize Stack size for each processor in SMM.\r | |
| 509 | @param ShadowStackSize Shadow Stack size for each processor in SMM.\r | |
| 529a5a86 MK |
510 | \r |
| 511 | **/\r | |
| 512 | UINT32\r | |
| 513 | InitializeMpServiceData (\r | |
| 053e878b MK |
514 | IN VOID *Stacks,\r |
| 515 | IN UINTN StackSize,\r | |
| 516 | IN UINTN ShadowStackSize\r | |
| 529a5a86 MK |
517 | );\r |
| 518 | \r | |
| 519 | /**\r | |
| 520 | Initialize Timer for SMM AP Sync.\r | |
| 521 | \r | |
| 522 | **/\r | |
| 523 | VOID\r | |
| 524 | InitializeSmmTimer (\r | |
| 525 | VOID\r | |
| 526 | );\r | |
| 527 | \r | |
| 528 | /**\r | |
| 529 | Start Timer for SMM AP Sync.\r | |
| 530 | \r | |
| 531 | **/\r | |
| 532 | UINT64\r | |
| 533 | EFIAPI\r | |
| 534 | StartSyncTimer (\r | |
| 535 | VOID\r | |
| 536 | );\r | |
| 537 | \r | |
| 538 | /**\r | |
| 539 | Check if the SMM AP Sync timer is timeout.\r | |
| 540 | \r | |
| 541 | @param Timer The start timer from the begin.\r | |
| 542 | \r | |
| 543 | **/\r | |
| 544 | BOOLEAN\r | |
| 545 | EFIAPI\r | |
| 546 | IsSyncTimerTimeout (\r | |
| 053e878b | 547 | IN UINT64 Timer\r |
| 529a5a86 MK |
548 | );\r |
| 549 | \r | |
| 550 | /**\r | |
| 551 | Initialize IDT for SMM Stack Guard.\r | |
| 552 | \r | |
| 553 | **/\r | |
| 554 | VOID\r | |
| 555 | EFIAPI\r | |
| 556 | InitializeIDTSmmStackGuard (\r | |
| 557 | VOID\r | |
| 558 | );\r | |
| 559 | \r | |
| 455b0347 S |
560 | /**\r |
| 561 | Initialize IDT IST Field.\r | |
| 562 | \r | |
| 563 | @param[in] ExceptionType Exception type.\r | |
| 564 | @param[in] Ist IST value.\r | |
| 565 | \r | |
| 566 | **/\r | |
| 567 | VOID\r | |
| 568 | EFIAPI\r | |
| 569 | InitializeIdtIst (\r | |
| 053e878b MK |
570 | IN EFI_EXCEPTION_TYPE ExceptionType,\r |
| 571 | IN UINT8 Ist\r | |
| 455b0347 S |
572 | );\r |
| 573 | \r | |
| fe5f1949 JY |
574 | /**\r |
| 575 | Initialize Gdt for all processors.\r | |
| 717fb604 | 576 | \r |
| fe5f1949 JY |
577 | @param[in] Cr3 CR3 value.\r |
| 578 | @param[out] GdtStepSize The step size for GDT table.\r | |
| 579 | \r | |
| 580 | @return GdtBase for processor 0.\r | |
| 581 | GdtBase for processor X is: GdtBase + (GdtStepSize * X)\r | |
| 582 | **/\r | |
| 583 | VOID *\r | |
| 584 | InitGdt (\r | |
| 585 | IN UINTN Cr3,\r | |
| 586 | OUT UINTN *GdtStepSize\r | |
| 587 | );\r | |
| 588 | \r | |
| 529a5a86 MK |
589 | /**\r |
| 590 | \r | |
| 591 | Register the SMM Foundation entry point.\r | |
| 592 | \r | |
| 593 | @param This Pointer to EFI_SMM_CONFIGURATION_PROTOCOL instance\r | |
| 594 | @param SmmEntryPoint SMM Foundation EntryPoint\r | |
| 595 | \r | |
| 596 | @retval EFI_SUCCESS Successfully to register SMM foundation entry point\r | |
| 597 | \r | |
| 598 | **/\r | |
| 599 | EFI_STATUS\r | |
| 600 | EFIAPI\r | |
| 601 | RegisterSmmEntry (\r | |
| 602 | IN CONST EFI_SMM_CONFIGURATION_PROTOCOL *This,\r | |
| 603 | IN EFI_SMM_ENTRY_POINT SmmEntryPoint\r | |
| 604 | );\r | |
| 605 | \r | |
| 606 | /**\r | |
| 607 | Create PageTable for SMM use.\r | |
| 608 | \r | |
| 609 | @return PageTable Address\r | |
| 610 | \r | |
| 611 | **/\r | |
| 612 | UINT32\r | |
| 613 | SmmInitPageTable (\r | |
| 614 | VOID\r | |
| 615 | );\r | |
| 616 | \r | |
| 617 | /**\r | |
| 618 | Schedule a procedure to run on the specified CPU.\r | |
| 619 | \r | |
| 620 | @param Procedure The address of the procedure to run\r | |
| 621 | @param CpuIndex Target CPU number\r | |
| 622 | @param ProcArguments The parameter to pass to the procedure\r | |
| 623 | \r | |
| 624 | @retval EFI_INVALID_PARAMETER CpuNumber not valid\r | |
| 625 | @retval EFI_INVALID_PARAMETER CpuNumber specifying BSP\r | |
| 626 | @retval EFI_INVALID_PARAMETER The AP specified by CpuNumber did not enter SMM\r | |
| 627 | @retval EFI_INVALID_PARAMETER The AP specified by CpuNumber is busy\r | |
| 628 | @retval EFI_SUCCESS - The procedure has been successfully scheduled\r | |
| 629 | \r | |
| 630 | **/\r | |
| 631 | EFI_STATUS\r | |
| 632 | EFIAPI\r | |
| 633 | SmmStartupThisAp (\r | |
| 053e878b MK |
634 | IN EFI_AP_PROCEDURE Procedure,\r |
| 635 | IN UINTN CpuIndex,\r | |
| 636 | IN OUT VOID *ProcArguments OPTIONAL\r | |
| 529a5a86 MK |
637 | );\r |
| 638 | \r | |
| 639 | /**\r | |
| 640 | Schedule a procedure to run on the specified CPU in a blocking fashion.\r | |
| 641 | \r | |
| 642 | @param Procedure The address of the procedure to run\r | |
| 643 | @param CpuIndex Target CPU Index\r | |
| 644 | @param ProcArguments The parameter to pass to the procedure\r | |
| 645 | \r | |
| 646 | @retval EFI_INVALID_PARAMETER CpuNumber not valid\r | |
| 647 | @retval EFI_INVALID_PARAMETER CpuNumber specifying BSP\r | |
| 648 | @retval EFI_INVALID_PARAMETER The AP specified by CpuNumber did not enter SMM\r | |
| 649 | @retval EFI_INVALID_PARAMETER The AP specified by CpuNumber is busy\r | |
| 650 | @retval EFI_SUCCESS The procedure has been successfully scheduled\r | |
| 651 | \r | |
| 652 | **/\r | |
| 653 | EFI_STATUS\r | |
| 654 | EFIAPI\r | |
| 655 | SmmBlockingStartupThisAp (\r | |
| 053e878b MK |
656 | IN EFI_AP_PROCEDURE Procedure,\r |
| 657 | IN UINTN CpuIndex,\r | |
| 658 | IN OUT VOID *ProcArguments OPTIONAL\r | |
| 529a5a86 MK |
659 | );\r |
| 660 | \r | |
| e4435f71 JY |
661 | /**\r |
| 662 | This function sets the attributes for the memory region specified by BaseAddress and\r | |
| 663 | Length from their current attributes to the attributes specified by Attributes.\r | |
| 664 | \r | |
| 665 | @param[in] BaseAddress The physical address that is the start address of a memory region.\r | |
| 666 | @param[in] Length The size in bytes of the memory region.\r | |
| 667 | @param[in] Attributes The bit mask of attributes to set for the memory region.\r | |
| 668 | \r | |
| 669 | @retval EFI_SUCCESS The attributes were set for the memory region.\r | |
| 670 | @retval EFI_ACCESS_DENIED The attributes for the memory resource range specified by\r | |
| 671 | BaseAddress and Length cannot be modified.\r | |
| 672 | @retval EFI_INVALID_PARAMETER Length is zero.\r | |
| 673 | Attributes specified an illegal combination of attributes that\r | |
| 674 | cannot be set together.\r | |
| 675 | @retval EFI_OUT_OF_RESOURCES There are not enough system resources to modify the attributes of\r | |
| 676 | the memory resource range.\r | |
| 677 | @retval EFI_UNSUPPORTED The processor does not support one or more bytes of the memory\r | |
| 678 | resource range specified by BaseAddress and Length.\r | |
| 679 | The bit mask of attributes is not support for the memory resource\r | |
| 680 | range specified by BaseAddress and Length.\r | |
| 681 | \r | |
| 682 | **/\r | |
| 683 | EFI_STATUS\r | |
| 684 | EFIAPI\r | |
| 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 | |
| 714 | EFIAPI\r | |
| 715 | SmmClearMemoryAttributes (\r | |
| 053e878b MK |
716 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r |
| 717 | IN UINT64 Length,\r | |
| 718 | IN UINT64 Attributes\r | |
| e4435f71 JY |
719 | );\r |
| 720 | \r | |
| 529a5a86 MK |
721 | /**\r |
| 722 | Initialize MP synchronization data.\r | |
| 723 | \r | |
| 724 | **/\r | |
| 725 | VOID\r | |
| 726 | EFIAPI\r | |
| 727 | InitializeMpSyncData (\r | |
| 728 | VOID\r | |
| 729 | );\r | |
| 730 | \r | |
| 731 | /**\r | |
| 732 | \r | |
| 733 | Find out SMRAM information including SMRR base and SMRR size.\r | |
| 734 | \r | |
| 735 | @param SmrrBase SMRR base\r | |
| 736 | @param SmrrSize SMRR size\r | |
| 737 | \r | |
| 738 | **/\r | |
| 739 | VOID\r | |
| 740 | FindSmramInfo (\r | |
| 053e878b MK |
741 | OUT UINT32 *SmrrBase,\r |
| 742 | OUT UINT32 *SmrrSize\r | |
| 529a5a86 MK |
743 | );\r |
| 744 | \r | |
| 745 | /**\r | |
| 0bdc9e75 | 746 | Relocate SmmBases for each processor.\r |
| 529a5a86 | 747 | \r |
| 0bdc9e75 | 748 | Execute on first boot and all S3 resumes\r |
| 529a5a86 MK |
749 | \r |
| 750 | **/\r | |
| 751 | VOID\r | |
| 0bdc9e75 SZ |
752 | EFIAPI\r |
| 753 | SmmRelocateBases (\r | |
| 529a5a86 MK |
754 | VOID\r |
| 755 | );\r | |
| 756 | \r | |
| 757 | /**\r | |
| 758 | Page Fault handler for SMM use.\r | |
| 759 | \r | |
| 760 | @param InterruptType Defines the type of interrupt or exception that\r | |
| 761 | occurred on the processor.This parameter is processor architecture specific.\r | |
| 762 | @param SystemContext A pointer to the processor context when\r | |
| 763 | the interrupt occurred on the processor.\r | |
| 764 | **/\r | |
| 765 | VOID\r | |
| 766 | EFIAPI\r | |
| 767 | SmiPFHandler (\r | |
| 053e878b MK |
768 | IN EFI_EXCEPTION_TYPE InterruptType,\r |
| 769 | IN EFI_SYSTEM_CONTEXT SystemContext\r | |
| 529a5a86 MK |
770 | );\r |
| 771 | \r | |
| 772 | /**\r | |
| 773 | Perform the remaining tasks.\r | |
| 774 | \r | |
| 775 | **/\r | |
| 776 | VOID\r | |
| 777 | PerformRemainingTasks (\r | |
| 778 | VOID\r | |
| 779 | );\r | |
| 780 | \r | |
| 9f419739 JY |
781 | /**\r |
| 782 | Perform the pre tasks.\r | |
| 783 | \r | |
| 784 | **/\r | |
| 785 | VOID\r | |
| 786 | PerformPreTasks (\r | |
| 787 | VOID\r | |
| 788 | );\r | |
| 789 | \r | |
| 529a5a86 MK |
790 | /**\r |
| 791 | Initialize MSR spin lock by MSR index.\r | |
| 792 | \r | |
| 793 | @param MsrIndex MSR index value.\r | |
| 794 | \r | |
| 795 | **/\r | |
| 796 | VOID\r | |
| 797 | InitMsrSpinLockByIndex (\r | |
| 053e878b | 798 | IN UINT32 MsrIndex\r |
| 529a5a86 MK |
799 | );\r |
| 800 | \r | |
| 801 | /**\r | |
| 802 | Hook return address of SMM Save State so that semaphore code\r | |
| 803 | can be executed immediately after AP exits SMM to indicate to\r | |
| 804 | the BSP that an AP has exited SMM after SMBASE relocation.\r | |
| 805 | \r | |
| 806 | @param[in] CpuIndex The processor index.\r | |
| 807 | @param[in] RebasedFlag A pointer to a flag that is set to TRUE\r | |
| 808 | immediately after AP exits SMM.\r | |
| 809 | \r | |
| 810 | **/\r | |
| 811 | VOID\r | |
| 812 | SemaphoreHook (\r | |
| 813 | IN UINTN CpuIndex,\r | |
| 814 | IN volatile BOOLEAN *RebasedFlag\r | |
| 815 | );\r | |
| 816 | \r | |
| 817 | /**\r | |
| 818 | Configure SMM Code Access Check feature for all processors.\r | |
| 819 | SMM Feature Control MSR will be locked after configuration.\r | |
| 820 | **/\r | |
| 821 | VOID\r | |
| 822 | ConfigSmmCodeAccessCheck (\r | |
| 823 | VOID\r | |
| 824 | );\r | |
| 825 | \r | |
| 826 | /**\r | |
| 827 | Hook the code executed immediately after an RSM instruction on the currently\r | |
| 828 | executing CPU. The mode of code executed immediately after RSM must be\r | |
| 829 | detected, and the appropriate hook must be selected. Always clear the auto\r | |
| 830 | HALT restart flag if it is set.\r | |
| 831 | \r | |
| 832 | @param[in] CpuIndex The processor index for the currently\r | |
| 833 | executing CPU.\r | |
| 834 | @param[in] CpuState Pointer to SMRAM Save State Map for the\r | |
| 835 | currently executing CPU.\r | |
| 836 | @param[in] NewInstructionPointer32 Instruction pointer to use if resuming to\r | |
| 837 | 32-bit mode from 64-bit SMM.\r | |
| 838 | @param[in] NewInstructionPointer Instruction pointer to use if resuming to\r | |
| 839 | same mode as SMM.\r | |
| 840 | \r | |
| 841 | @retval The value of the original instruction pointer before it was hooked.\r | |
| 842 | \r | |
| 843 | **/\r | |
| 844 | UINT64\r | |
| 845 | EFIAPI\r | |
| 846 | HookReturnFromSmm (\r | |
| 847 | IN UINTN CpuIndex,\r | |
| 848 | SMRAM_SAVE_STATE_MAP *CpuState,\r | |
| 849 | UINT64 NewInstructionPointer32,\r | |
| 850 | UINT64 NewInstructionPointer\r | |
| 851 | );\r | |
| 852 | \r | |
| 853 | /**\r | |
| 854 | Get the size of the SMI Handler in bytes.\r | |
| 855 | \r | |
| 856 | @retval The size, in bytes, of the SMI Handler.\r | |
| 857 | \r | |
| 858 | **/\r | |
| 859 | UINTN\r | |
| 860 | EFIAPI\r | |
| 861 | GetSmiHandlerSize (\r | |
| 862 | VOID\r | |
| 863 | );\r | |
| 864 | \r | |
| 865 | /**\r | |
| 866 | Install the SMI handler for the CPU specified by CpuIndex. This function\r | |
| 867 | is called by the CPU that was elected as monarch during System Management\r | |
| 868 | Mode initialization.\r | |
| 869 | \r | |
| 870 | @param[in] CpuIndex The index of the CPU to install the custom SMI handler.\r | |
| 871 | The value must be between 0 and the NumberOfCpus field\r | |
| 872 | in the System Management System Table (SMST).\r | |
| 873 | @param[in] SmBase The SMBASE address for the CPU specified by CpuIndex.\r | |
| 874 | @param[in] SmiStack The stack to use when an SMI is processed by the\r | |
| 875 | the CPU specified by CpuIndex.\r | |
| 876 | @param[in] StackSize The size, in bytes, if the stack used when an SMI is\r | |
| 877 | processed by the CPU specified by CpuIndex.\r | |
| 878 | @param[in] GdtBase The base address of the GDT to use when an SMI is\r | |
| 879 | processed by the CPU specified by CpuIndex.\r | |
| 880 | @param[in] GdtSize The size, in bytes, of the GDT used when an SMI is\r | |
| 881 | processed by the CPU specified by CpuIndex.\r | |
| 882 | @param[in] IdtBase The base address of the IDT to use when an SMI is\r | |
| 883 | processed by the CPU specified by CpuIndex.\r | |
| 884 | @param[in] IdtSize The size, in bytes, of the IDT used when an SMI is\r | |
| 885 | processed by the CPU specified by CpuIndex.\r | |
| 886 | @param[in] Cr3 The base address of the page tables to use when an SMI\r | |
| 887 | is processed by the CPU specified by CpuIndex.\r | |
| 888 | **/\r | |
| 889 | VOID\r | |
| 890 | EFIAPI\r | |
| 891 | InstallSmiHandler (\r | |
| 892 | IN UINTN CpuIndex,\r | |
| 893 | IN UINT32 SmBase,\r | |
| 894 | IN VOID *SmiStack,\r | |
| 895 | IN UINTN StackSize,\r | |
| 896 | IN UINTN GdtBase,\r | |
| 897 | IN UINTN GdtSize,\r | |
| 898 | IN UINTN IdtBase,\r | |
| 899 | IN UINTN IdtSize,\r | |
| 900 | IN UINT32 Cr3\r | |
| 901 | );\r | |
| 902 | \r | |
| 903 | /**\r | |
| 904 | Search module name by input IP address and output it.\r | |
| 905 | \r | |
| 906 | @param CallerIpAddress Caller instruction pointer.\r | |
| 907 | \r | |
| 908 | **/\r | |
| 909 | VOID\r | |
| 910 | DumpModuleInfoByIp (\r | |
| 053e878b | 911 | IN UINTN CallerIpAddress\r |
| 529a5a86 | 912 | );\r |
| 21c17193 | 913 | \r |
| 717fb604 JY |
914 | /**\r |
| 915 | This function sets memory attribute according to MemoryAttributesTable.\r | |
| 916 | **/\r | |
| 917 | VOID\r | |
| 918 | SetMemMapAttributes (\r | |
| 919 | VOID\r | |
| 920 | );\r | |
| 921 | \r | |
| d2fc7711 JY |
922 | /**\r |
| 923 | This function sets UEFI memory attribute according to UEFI memory map.\r | |
| 924 | **/\r | |
| 925 | VOID\r | |
| 926 | SetUefiMemMapAttributes (\r | |
| 927 | VOID\r | |
| 928 | );\r | |
| 929 | \r | |
| 930 | /**\r | |
| 931 | Return if the Address is forbidden as SMM communication buffer.\r | |
| 932 | \r | |
| 933 | @param[in] Address the address to be checked\r | |
| 934 | \r | |
| 935 | @return TRUE The address is forbidden as SMM communication buffer.\r | |
| 936 | @return FALSE The address is allowed as SMM communication buffer.\r | |
| 937 | **/\r | |
| 938 | BOOLEAN\r | |
| 939 | IsSmmCommBufferForbiddenAddress (\r | |
| 940 | IN UINT64 Address\r | |
| 941 | );\r | |
| 942 | \r | |
| 943 | /**\r | |
| 944 | This function caches the UEFI memory map information.\r | |
| 945 | **/\r | |
| 946 | VOID\r | |
| 947 | GetUefiMemoryMap (\r | |
| 948 | VOID\r | |
| 949 | );\r | |
| 950 | \r | |
| 717fb604 JY |
951 | /**\r |
| 952 | This function sets memory attribute for page table.\r | |
| 953 | **/\r | |
| 954 | VOID\r | |
| 955 | SetPageTableAttributes (\r | |
| 956 | VOID\r | |
| 957 | );\r | |
| 958 | \r | |
| 959 | /**\r | |
| 404250c8 | 960 | Get page table base address and the depth of the page table.\r |
| 717fb604 | 961 | \r |
| 404250c8 SW |
962 | @param[out] Base Page table base address.\r |
| 963 | @param[out] FiveLevels TRUE means 5 level paging. FALSE means 4 level paging.\r | |
| 717fb604 | 964 | **/\r |
| 404250c8 SW |
965 | VOID\r |
| 966 | GetPageTable (\r | |
| 053e878b MK |
967 | OUT UINTN *Base,\r |
| 968 | OUT BOOLEAN *FiveLevels OPTIONAL\r | |
| 717fb604 JY |
969 | );\r |
| 970 | \r | |
| 971 | /**\r | |
| 972 | This function sets the attributes for the memory region specified by BaseAddress and\r | |
| 973 | Length from their current attributes to the attributes specified by Attributes.\r | |
| 974 | \r | |
| 975 | @param[in] BaseAddress The physical address that is the start address of a memory region.\r | |
| 976 | @param[in] Length The size in bytes of the memory region.\r | |
| 977 | @param[in] Attributes The bit mask of attributes to set for the memory region.\r | |
| 978 | @param[out] IsSplitted TRUE means page table splitted. FALSE means page table not splitted.\r | |
| 979 | \r | |
| 980 | @retval EFI_SUCCESS The attributes were set for the memory region.\r | |
| 981 | @retval EFI_ACCESS_DENIED The attributes for the memory resource range specified by\r | |
| 982 | BaseAddress and Length cannot be modified.\r | |
| 983 | @retval EFI_INVALID_PARAMETER Length is zero.\r | |
| 984 | Attributes specified an illegal combination of attributes that\r | |
| 985 | cannot be set together.\r | |
| 986 | @retval EFI_OUT_OF_RESOURCES There are not enough system resources to modify the attributes of\r | |
| 987 | the memory resource range.\r | |
| 988 | @retval EFI_UNSUPPORTED The processor does not support one or more bytes of the memory\r | |
| 989 | resource range specified by BaseAddress and Length.\r | |
| 990 | The bit mask of attributes is not support for the memory resource\r | |
| 991 | range specified by BaseAddress and Length.\r | |
| 992 | \r | |
| 993 | **/\r | |
| 994 | EFI_STATUS\r | |
| 995 | EFIAPI\r | |
| 996 | SmmSetMemoryAttributesEx (\r | |
| 053e878b MK |
997 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r |
| 998 | IN UINT64 Length,\r | |
| 999 | IN UINT64 Attributes,\r | |
| 1000 | OUT BOOLEAN *IsSplitted OPTIONAL\r | |
| 717fb604 JY |
1001 | );\r |
| 1002 | \r | |
| 1003 | /**\r | |
| 1004 | This function clears the attributes for the memory region specified by BaseAddress and\r | |
| 1005 | Length from their current attributes to the attributes specified by Attributes.\r | |
| 1006 | \r | |
| 1007 | @param[in] BaseAddress The physical address that is the start address of a memory region.\r | |
| 1008 | @param[in] Length The size in bytes of the memory region.\r | |
| 1009 | @param[in] Attributes The bit mask of attributes to clear for the memory region.\r | |
| 1010 | @param[out] IsSplitted TRUE means page table splitted. FALSE means page table not splitted.\r | |
| 1011 | \r | |
| 1012 | @retval EFI_SUCCESS The attributes were cleared for the memory region.\r | |
| 1013 | @retval EFI_ACCESS_DENIED The attributes for the memory resource range specified by\r | |
| 1014 | BaseAddress and Length cannot be modified.\r | |
| 1015 | @retval EFI_INVALID_PARAMETER Length is zero.\r | |
| 1016 | Attributes specified an illegal combination of attributes that\r | |
| 1017 | cannot be set together.\r | |
| 1018 | @retval EFI_OUT_OF_RESOURCES There are not enough system resources to modify the attributes of\r | |
| 1019 | the memory resource range.\r | |
| 1020 | @retval EFI_UNSUPPORTED The processor does not support one or more bytes of the memory\r | |
| 1021 | resource range specified by BaseAddress and Length.\r | |
| 1022 | The bit mask of attributes is not support for the memory resource\r | |
| 1023 | range specified by BaseAddress and Length.\r | |
| 1024 | \r | |
| 1025 | **/\r | |
| 1026 | EFI_STATUS\r | |
| 1027 | EFIAPI\r | |
| 1028 | SmmClearMemoryAttributesEx (\r | |
| 053e878b MK |
1029 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r |
| 1030 | IN UINT64 Length,\r | |
| 1031 | IN UINT64 Attributes,\r | |
| 1032 | OUT BOOLEAN *IsSplitted OPTIONAL\r | |
| 717fb604 JY |
1033 | );\r |
| 1034 | \r | |
| 21c17193 JY |
1035 | /**\r |
| 1036 | This API provides a way to allocate memory for page table.\r | |
| 1037 | \r | |
| 1038 | This API can be called more once to allocate memory for page tables.\r | |
| 1039 | \r | |
| 1040 | Allocates the number of 4KB pages of type EfiRuntimeServicesData and returns a pointer to the\r | |
| 1041 | allocated buffer. The buffer returned is aligned on a 4KB boundary. If Pages is 0, then NULL\r | |
| 1042 | is returned. If there is not enough memory remaining to satisfy the request, then NULL is\r | |
| 1043 | returned.\r | |
| 1044 | \r | |
| 1045 | @param Pages The number of 4 KB pages to allocate.\r | |
| 1046 | \r | |
| 1047 | @return A pointer to the allocated buffer or NULL if allocation fails.\r | |
| 1048 | \r | |
| 1049 | **/\r | |
| 1050 | VOID *\r | |
| 1051 | AllocatePageTableMemory (\r | |
| 053e878b | 1052 | IN UINTN Pages\r |
| 21c17193 JY |
1053 | );\r |
| 1054 | \r | |
| 717fb604 JY |
1055 | /**\r |
| 1056 | Allocate pages for code.\r | |
| 1057 | \r | |
| 1058 | @param[in] Pages Number of pages to be allocated.\r | |
| 1059 | \r | |
| 1060 | @return Allocated memory.\r | |
| 1061 | **/\r | |
| 1062 | VOID *\r | |
| 1063 | AllocateCodePages (\r | |
| 053e878b | 1064 | IN UINTN Pages\r |
| 717fb604 JY |
1065 | );\r |
| 1066 | \r | |
| 1067 | /**\r | |
| 1068 | Allocate aligned pages for code.\r | |
| 1069 | \r | |
| 1070 | @param[in] Pages Number of pages to be allocated.\r | |
| 1071 | @param[in] Alignment The requested alignment of the allocation.\r | |
| 1072 | Must be a power of two.\r | |
| 1073 | If Alignment is zero, then byte alignment is used.\r | |
| 1074 | \r | |
| 1075 | @return Allocated memory.\r | |
| 1076 | **/\r | |
| 1077 | VOID *\r | |
| 1078 | AllocateAlignedCodePages (\r | |
| 053e878b MK |
1079 | IN UINTN Pages,\r |
| 1080 | IN UINTN Alignment\r | |
| 717fb604 JY |
1081 | );\r |
| 1082 | \r | |
| 0bdc9e75 SZ |
1083 | //\r |
| 1084 | // S3 related global variable and function prototype.\r | |
| 1085 | //\r | |
| 1086 | \r | |
| 053e878b | 1087 | extern BOOLEAN mSmmS3Flag;\r |
| 0bdc9e75 SZ |
1088 | \r |
| 1089 | /**\r | |
| 1090 | Initialize SMM S3 resume state structure used during S3 Resume.\r | |
| 1091 | \r | |
| 1092 | @param[in] Cr3 The base address of the page tables to use in SMM.\r | |
| 1093 | \r | |
| 1094 | **/\r | |
| 1095 | VOID\r | |
| 1096 | InitSmmS3ResumeState (\r | |
| 1097 | IN UINT32 Cr3\r | |
| 1098 | );\r | |
| 1099 | \r | |
| 1100 | /**\r | |
| 1101 | Get ACPI CPU data.\r | |
| 1102 | \r | |
| 1103 | **/\r | |
| 1104 | VOID\r | |
| 1105 | GetAcpiCpuData (\r | |
| 1106 | VOID\r | |
| 1107 | );\r | |
| 1108 | \r | |
| 1109 | /**\r | |
| 1110 | Restore SMM Configuration in S3 boot path.\r | |
| 1111 | \r | |
| 1112 | **/\r | |
| 1113 | VOID\r | |
| 1114 | RestoreSmmConfigurationInS3 (\r | |
| 1115 | VOID\r | |
| 1116 | );\r | |
| 1117 | \r | |
| b10d5ddc SZ |
1118 | /**\r |
| 1119 | Get ACPI S3 enable flag.\r | |
| 1120 | \r | |
| 1121 | **/\r | |
| 1122 | VOID\r | |
| 1123 | GetAcpiS3EnableFlag (\r | |
| 1124 | VOID\r | |
| 1125 | );\r | |
| 1126 | \r | |
| 4a0f88dd JF |
1127 | /**\r |
| 1128 | Transfer AP to safe hlt-loop after it finished restore CPU features on S3 patch.\r | |
| 1129 | \r | |
| 672b80c8 MK |
1130 | @param[in] ApHltLoopCode The address of the safe hlt-loop function.\r |
| 1131 | @param[in] TopOfStack A pointer to the new stack to use for the ApHltLoopCode.\r | |
| 1132 | @param[in] NumberToFinishAddress Address of Semaphore of APs finish count.\r | |
| 4a0f88dd JF |
1133 | \r |
| 1134 | **/\r | |
| 1135 | VOID\r | |
| 1136 | TransferApToSafeState (\r | |
| 672b80c8 MK |
1137 | IN UINTN ApHltLoopCode,\r |
| 1138 | IN UINTN TopOfStack,\r | |
| 1139 | IN UINTN NumberToFinishAddress\r | |
| 4a0f88dd JF |
1140 | );\r |
| 1141 | \r | |
| 3eb69b08 JY |
1142 | /**\r |
| 1143 | Set ShadowStack memory.\r | |
| 1144 | \r | |
| 1145 | @param[in] Cr3 The page table base address.\r | |
| 1146 | @param[in] BaseAddress The physical address that is the start address of a memory region.\r | |
| 1147 | @param[in] Length The size in bytes of the memory region.\r | |
| 1148 | \r | |
| 1149 | @retval EFI_SUCCESS The shadow stack memory is set.\r | |
| 1150 | **/\r | |
| 1151 | EFI_STATUS\r | |
| 1152 | SetShadowStack (\r | |
| 053e878b MK |
1153 | IN UINTN Cr3,\r |
| 1154 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r | |
| 1155 | IN UINT64 Length\r | |
| 3eb69b08 JY |
1156 | );\r |
| 1157 | \r | |
| 1158 | /**\r | |
| 1159 | Set not present memory.\r | |
| 1160 | \r | |
| 1161 | @param[in] Cr3 The page table base address.\r | |
| 1162 | @param[in] BaseAddress The physical address that is the start address of a memory region.\r | |
| 1163 | @param[in] Length The size in bytes of the memory region.\r | |
| 1164 | \r | |
| 1165 | @retval EFI_SUCCESS The not present memory is set.\r | |
| 1166 | **/\r | |
| 1167 | EFI_STATUS\r | |
| 1168 | SetNotPresentPage (\r | |
| 053e878b MK |
1169 | IN UINTN Cr3,\r |
| 1170 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r | |
| 1171 | IN UINT64 Length\r | |
| 3eb69b08 JY |
1172 | );\r |
| 1173 | \r | |
| 1174 | /**\r | |
| 1175 | Initialize the shadow stack related data structure.\r | |
| 1176 | \r | |
| 1177 | @param CpuIndex The index of CPU.\r | |
| 1178 | @param ShadowStack The bottom of the shadow stack for this CPU.\r | |
| 1179 | **/\r | |
| 1180 | VOID\r | |
| 1181 | InitShadowStack (\r | |
| 1182 | IN UINTN CpuIndex,\r | |
| 1183 | IN VOID *ShadowStack\r | |
| 1184 | );\r | |
| 1185 | \r | |
| 827330cc JW |
1186 | /**\r |
| 1187 | This function set given attributes of the memory region specified by\r | |
| 1188 | BaseAddress and Length.\r | |
| 1189 | \r | |
| 1190 | @param This The EDKII_SMM_MEMORY_ATTRIBUTE_PROTOCOL instance.\r | |
| 1191 | @param BaseAddress The physical address that is the start address of\r | |
| 1192 | a memory region.\r | |
| 1193 | @param Length The size in bytes of the memory region.\r | |
| 1194 | @param Attributes The bit mask of attributes to set for the memory\r | |
| 1195 | region.\r | |
| 1196 | \r | |
| 1197 | @retval EFI_SUCCESS The attributes were set for the memory region.\r | |
| 1198 | @retval EFI_INVALID_PARAMETER Length is zero.\r | |
| 1199 | Attributes specified an illegal combination of\r | |
| 1200 | attributes that cannot be set together.\r | |
| 1201 | @retval EFI_UNSUPPORTED The processor does not support one or more\r | |
| 1202 | bytes of the memory resource range specified\r | |
| 1203 | by BaseAddress and Length.\r | |
| aae02dcc | 1204 | The bit mask of attributes is not supported for\r |
| 827330cc JW |
1205 | the memory resource range specified by\r |
| 1206 | BaseAddress and Length.\r | |
| 1207 | \r | |
| 1208 | **/\r | |
| 1209 | EFI_STATUS\r | |
| 1210 | EFIAPI\r | |
| 1211 | EdkiiSmmSetMemoryAttributes (\r | |
| 053e878b MK |
1212 | IN EDKII_SMM_MEMORY_ATTRIBUTE_PROTOCOL *This,\r |
| 1213 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r | |
| 1214 | IN UINT64 Length,\r | |
| 1215 | IN UINT64 Attributes\r | |
| 827330cc JW |
1216 | );\r |
| 1217 | \r | |
| 1218 | /**\r | |
| 1219 | This function clears given attributes of the memory region specified by\r | |
| 1220 | BaseAddress and Length.\r | |
| 1221 | \r | |
| 1222 | @param This The EDKII_SMM_MEMORY_ATTRIBUTE_PROTOCOL instance.\r | |
| 1223 | @param BaseAddress The physical address that is the start address of\r | |
| 1224 | a memory region.\r | |
| 1225 | @param Length The size in bytes of the memory region.\r | |
| aae02dcc | 1226 | @param Attributes The bit mask of attributes to clear for the memory\r |
| 827330cc JW |
1227 | region.\r |
| 1228 | \r | |
| aae02dcc | 1229 | @retval EFI_SUCCESS The attributes were cleared for the memory region.\r |
| 827330cc JW |
1230 | @retval EFI_INVALID_PARAMETER Length is zero.\r |
| 1231 | Attributes specified an illegal combination of\r | |
| aae02dcc | 1232 | attributes that cannot be cleared together.\r |
| 827330cc JW |
1233 | @retval EFI_UNSUPPORTED The processor does not support one or more\r |
| 1234 | bytes of the memory resource range specified\r | |
| 1235 | by BaseAddress and Length.\r | |
| aae02dcc | 1236 | The bit mask of attributes is not supported for\r |
| 827330cc JW |
1237 | the memory resource range specified by\r |
| 1238 | BaseAddress and Length.\r | |
| 1239 | \r | |
| 1240 | **/\r | |
| 1241 | EFI_STATUS\r | |
| 1242 | EFIAPI\r | |
| 1243 | EdkiiSmmClearMemoryAttributes (\r | |
| 053e878b MK |
1244 | IN EDKII_SMM_MEMORY_ATTRIBUTE_PROTOCOL *This,\r |
| 1245 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r | |
| 1246 | IN UINT64 Length,\r | |
| 1247 | IN UINT64 Attributes\r | |
| 827330cc JW |
1248 | );\r |
| 1249 | \r | |
| 1250 | /**\r | |
| aae02dcc | 1251 | This function retrieves the attributes of the memory region specified by\r |
| 827330cc JW |
1252 | BaseAddress and Length. If different attributes are got from different part\r |
| 1253 | of the memory region, EFI_NO_MAPPING will be returned.\r | |
| 1254 | \r | |
| 1255 | @param This The EDKII_SMM_MEMORY_ATTRIBUTE_PROTOCOL instance.\r | |
| 1256 | @param BaseAddress The physical address that is the start address of\r | |
| 1257 | a memory region.\r | |
| 1258 | @param Length The size in bytes of the memory region.\r | |
| 1259 | @param Attributes Pointer to attributes returned.\r | |
| 1260 | \r | |
| 1261 | @retval EFI_SUCCESS The attributes got for the memory region.\r | |
| 1262 | @retval EFI_INVALID_PARAMETER Length is zero.\r | |
| 1263 | Attributes is NULL.\r | |
| 1264 | @retval EFI_NO_MAPPING Attributes are not consistent cross the memory\r | |
| 1265 | region.\r | |
| 1266 | @retval EFI_UNSUPPORTED The processor does not support one or more\r | |
| 1267 | bytes of the memory resource range specified\r | |
| 1268 | by BaseAddress and Length.\r | |
| 827330cc JW |
1269 | \r |
| 1270 | **/\r | |
| 1271 | EFI_STATUS\r | |
| 1272 | EFIAPI\r | |
| 1273 | EdkiiSmmGetMemoryAttributes (\r | |
| 053e878b MK |
1274 | IN EDKII_SMM_MEMORY_ATTRIBUTE_PROTOCOL *This,\r |
| 1275 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r | |
| 1276 | IN UINT64 Length,\r | |
| 1277 | IN UINT64 *Attributes\r | |
| 827330cc JW |
1278 | );\r |
| 1279 | \r | |
| e21e355e LG |
1280 | /**\r |
| 1281 | This function fixes up the address of the global variable or function\r | |
| ef62da4f | 1282 | referred in SmmInit assembly files to be the absolute address.\r |
| e21e355e LG |
1283 | **/\r |
| 1284 | VOID\r | |
| 1285 | EFIAPI\r | |
| 1286 | PiSmmCpuSmmInitFixupAddress (\r | |
| 053e878b | 1287 | );\r |
| e21e355e LG |
1288 | \r |
| 1289 | /**\r | |
| 1290 | This function fixes up the address of the global variable or function\r | |
| ef62da4f | 1291 | referred in SmiEntry assembly files to be the absolute address.\r |
| e21e355e LG |
1292 | **/\r |
| 1293 | VOID\r | |
| 1294 | EFIAPI\r | |
| 1295 | PiSmmCpuSmiEntryFixupAddress (\r | |
| 053e878b | 1296 | );\r |
| e21e355e | 1297 | \r |
| 37f9fea5 VN |
1298 | /**\r |
| 1299 | This function reads CR2 register when on-demand paging is enabled\r | |
| 1300 | for 64 bit and no action for 32 bit.\r | |
| 1301 | \r | |
| 1302 | @param[out] *Cr2 Pointer to variable to hold CR2 register value.\r | |
| 1303 | **/\r | |
| 1304 | VOID\r | |
| 1305 | SaveCr2 (\r | |
| 1306 | OUT UINTN *Cr2\r | |
| 1307 | );\r | |
| 1308 | \r | |
| 1309 | /**\r | |
| 1310 | This function writes into CR2 register when on-demand paging is enabled\r | |
| 1311 | for 64 bit and no action for 32 bit.\r | |
| 1312 | \r | |
| 1313 | @param[in] Cr2 Value to write into CR2 register.\r | |
| 1314 | **/\r | |
| 1315 | VOID\r | |
| 1316 | RestoreCr2 (\r | |
| 1317 | IN UINTN Cr2\r | |
| 1318 | );\r | |
| 1319 | \r | |
| 51dd408a ED |
1320 | /**\r |
| 1321 | Schedule a procedure to run on the specified CPU.\r | |
| 1322 | \r | |
| 1323 | @param[in] Procedure The address of the procedure to run\r | |
| 1324 | @param[in] CpuIndex Target CPU Index\r | |
| 1325 | @param[in,out] ProcArguments The parameter to pass to the procedure\r | |
| 1326 | @param[in,out] Token This is an optional parameter that allows the caller to execute the\r | |
| 1327 | procedure in a blocking or non-blocking fashion. If it is NULL the\r | |
| 1328 | call is blocking, and the call will not return until the AP has\r | |
| 1329 | completed the procedure. If the token is not NULL, the call will\r | |
| 1330 | return immediately. The caller can check whether the procedure has\r | |
| 1331 | completed with CheckOnProcedure or WaitForProcedure.\r | |
| 1332 | @param[in] TimeoutInMicroseconds Indicates the time limit in microseconds for the APs to finish\r | |
| 1333 | execution of Procedure, either for blocking or non-blocking mode.\r | |
| 1334 | Zero means infinity. If the timeout expires before all APs return\r | |
| 1335 | from Procedure, then Procedure on the failed APs is terminated. If\r | |
| 1336 | the timeout expires in blocking mode, the call returns EFI_TIMEOUT.\r | |
| 1337 | If the timeout expires in non-blocking mode, the timeout determined\r | |
| 1338 | can be through CheckOnProcedure or WaitForProcedure.\r | |
| 1339 | Note that timeout support is optional. Whether an implementation\r | |
| 1340 | supports this feature can be determined via the Attributes data\r | |
| 1341 | member.\r | |
| 073f2ced | 1342 | @param[in,out] CpuStatus This optional pointer may be used to get the status code returned\r |
| 51dd408a ED |
1343 | by Procedure when it completes execution on the target AP, or with\r |
| 1344 | EFI_TIMEOUT if the Procedure fails to complete within the optional\r | |
| 1345 | timeout. The implementation will update this variable with\r | |
| 1346 | EFI_NOT_READY prior to starting Procedure on the target AP.\r | |
| 1347 | \r | |
| 1348 | @retval EFI_INVALID_PARAMETER CpuNumber not valid\r | |
| 1349 | @retval EFI_INVALID_PARAMETER CpuNumber specifying BSP\r | |
| 1350 | @retval EFI_INVALID_PARAMETER The AP specified by CpuNumber did not enter SMM\r | |
| 1351 | @retval EFI_INVALID_PARAMETER The AP specified by CpuNumber is busy\r | |
| 1352 | @retval EFI_SUCCESS The procedure has been successfully scheduled\r | |
| 1353 | \r | |
| 1354 | **/\r | |
| 1355 | EFI_STATUS\r | |
| 1356 | InternalSmmStartupThisAp (\r | |
| 053e878b MK |
1357 | IN EFI_AP_PROCEDURE2 Procedure,\r |
| 1358 | IN UINTN CpuIndex,\r | |
| 1359 | IN OUT VOID *ProcArguments OPTIONAL,\r | |
| 1360 | IN OUT MM_COMPLETION *Token,\r | |
| 1361 | IN UINTN TimeoutInMicroseconds,\r | |
| 1362 | IN OUT EFI_STATUS *CpuStatus\r | |
| 51dd408a ED |
1363 | );\r |
| 1364 | \r | |
| 1365 | /**\r | |
| 1366 | Checks whether the input token is the current used token.\r | |
| 1367 | \r | |
| 1368 | @param[in] Token This parameter describes the token that was passed into DispatchProcedure or\r | |
| 1369 | BroadcastProcedure.\r | |
| 1370 | \r | |
| 1371 | @retval TRUE The input token is the current used token.\r | |
| 1372 | @retval FALSE The input token is not the current used token.\r | |
| 1373 | **/\r | |
| 1374 | BOOLEAN\r | |
| 1375 | IsTokenInUse (\r | |
| 053e878b | 1376 | IN SPIN_LOCK *Token\r |
| 51dd408a ED |
1377 | );\r |
| 1378 | \r | |
| 1379 | /**\r | |
| 1380 | Checks status of specified AP.\r | |
| 1381 | \r | |
| 1382 | This function checks whether the specified AP has finished the task assigned\r | |
| 1383 | by StartupThisAP(), and whether timeout expires.\r | |
| 1384 | \r | |
| 1385 | @param[in] Token This parameter describes the token that was passed into DispatchProcedure or\r | |
| 1386 | BroadcastProcedure.\r | |
| 1387 | \r | |
| 1388 | @retval EFI_SUCCESS Specified AP has finished task assigned by StartupThisAPs().\r | |
| 1389 | @retval EFI_NOT_READY Specified AP has not finished task and timeout has not expired.\r | |
| 1390 | **/\r | |
| 1391 | EFI_STATUS\r | |
| 1392 | IsApReady (\r | |
| 1393 | IN SPIN_LOCK *Token\r | |
| 1394 | );\r | |
| 1395 | \r | |
| 1396 | /**\r | |
| 1397 | Check whether it is an present AP.\r | |
| 1398 | \r | |
| 1399 | @param CpuIndex The AP index which calls this function.\r | |
| 1400 | \r | |
| 1401 | @retval TRUE It's a present AP.\r | |
| 1402 | @retval TRUE This is not an AP or it is not present.\r | |
| 1403 | \r | |
| 1404 | **/\r | |
| 1405 | BOOLEAN\r | |
| 1406 | IsPresentAp (\r | |
| 053e878b | 1407 | IN UINTN CpuIndex\r |
| 51dd408a ED |
1408 | );\r |
| 1409 | \r | |
| 1410 | /**\r | |
| 1411 | Worker function to execute a caller provided function on all enabled APs.\r | |
| 1412 | \r | |
| 1413 | @param[in] Procedure A pointer to the function to be run on\r | |
| 1414 | enabled APs of the system.\r | |
| 1415 | @param[in] TimeoutInMicroseconds Indicates the time limit in microseconds for\r | |
| 1416 | APs to return from Procedure, either for\r | |
| 1417 | blocking or non-blocking mode.\r | |
| 5ed4c46f | 1418 | @param[in,out] ProcedureArguments The parameter passed into Procedure for\r |
| 51dd408a ED |
1419 | all APs.\r |
| 1420 | @param[in,out] Token This is an optional parameter that allows the caller to execute the\r | |
| 1421 | procedure in a blocking or non-blocking fashion. If it is NULL the\r | |
| 1422 | call is blocking, and the call will not return until the AP has\r | |
| 1423 | completed the procedure. If the token is not NULL, the call will\r | |
| 1424 | return immediately. The caller can check whether the procedure has\r | |
| 1425 | completed with CheckOnProcedure or WaitForProcedure.\r | |
| 1426 | @param[in,out] CPUStatus This optional pointer may be used to get the status code returned\r | |
| 1427 | by Procedure when it completes execution on the target AP, or with\r | |
| 1428 | EFI_TIMEOUT if the Procedure fails to complete within the optional\r | |
| 1429 | timeout. The implementation will update this variable with\r | |
| 1430 | EFI_NOT_READY prior to starting Procedure on the target AP.\r | |
| 1431 | \r | |
| 1432 | @retval EFI_SUCCESS In blocking mode, all APs have finished before\r | |
| 1433 | the timeout expired.\r | |
| 1434 | @retval EFI_SUCCESS In non-blocking mode, function has been dispatched\r | |
| 1435 | to all enabled APs.\r | |
| 1436 | @retval others Failed to Startup all APs.\r | |
| 1437 | \r | |
| 1438 | **/\r | |
| 1439 | EFI_STATUS\r | |
| 1440 | InternalSmmStartupAllAPs (\r | |
| 053e878b MK |
1441 | IN EFI_AP_PROCEDURE2 Procedure,\r |
| 1442 | IN UINTN TimeoutInMicroseconds,\r | |
| 1443 | IN OUT VOID *ProcedureArguments OPTIONAL,\r | |
| 1444 | IN OUT MM_COMPLETION *Token,\r | |
| 1445 | IN OUT EFI_STATUS *CPUStatus\r | |
| 51dd408a ED |
1446 | );\r |
| 1447 | \r | |
| 1448 | /**\r | |
| 1449 | \r | |
| 1450 | Register the SMM Foundation entry point.\r | |
| 1451 | \r | |
| 1452 | @param[in] Procedure A pointer to the code stream to be run on the designated target AP\r | |
| 1453 | of the system. Type EFI_AP_PROCEDURE is defined below in Volume 2\r | |
| 1454 | with the related definitions of\r | |
| 1455 | EFI_MP_SERVICES_PROTOCOL.StartupAllAPs.\r | |
| 1456 | If caller may pass a value of NULL to deregister any existing\r | |
| 1457 | startup procedure.\r | |
| 1458 | @param[in,out] ProcedureArguments Allows the caller to pass a list of parameters to the code that is\r | |
| 1459 | run by the AP. It is an optional common mailbox between APs and\r | |
| 1460 | the caller to share information\r | |
| 1461 | \r | |
| 1462 | @retval EFI_SUCCESS The Procedure has been set successfully.\r | |
| 1463 | @retval EFI_INVALID_PARAMETER The Procedure is NULL but ProcedureArguments not NULL.\r | |
| 1464 | \r | |
| 1465 | **/\r | |
| 1466 | EFI_STATUS\r | |
| 1467 | RegisterStartupProcedure (\r | |
| 053e878b MK |
1468 | IN EFI_AP_PROCEDURE Procedure,\r |
| 1469 | IN OUT VOID *ProcedureArguments OPTIONAL\r | |
| 51dd408a ED |
1470 | );\r |
| 1471 | \r | |
| 1472 | /**\r | |
| 1473 | Allocate buffer for SpinLock and Wrapper function buffer.\r | |
| 1474 | \r | |
| 1475 | **/\r | |
| 1476 | VOID\r | |
| 1477 | InitializeDataForMmMp (\r | |
| 1478 | VOID\r | |
| 1479 | );\r | |
| 1480 | \r | |
| 79186ddc RN |
1481 | /**\r |
| 1482 | Return whether access to non-SMRAM is restricted.\r | |
| 1483 | \r | |
| 1484 | @retval TRUE Access to non-SMRAM is restricted.\r | |
| 1485 | @retval FALSE Access to non-SMRAM is not restricted.\r | |
| 9c33f16f | 1486 | **/\r |
| 79186ddc RN |
1487 | BOOLEAN\r |
| 1488 | IsRestrictedMemoryAccess (\r | |
| 1489 | VOID\r | |
| 1490 | );\r | |
| 1491 | \r | |
| 4a68176c LZ |
1492 | /**\r |
| 1493 | Choose blocking or non-blocking mode to Wait for all APs.\r | |
| 1494 | \r | |
| 1495 | @param[in] This A pointer to the EDKII_SMM_CPU_RENDEZVOUS_PROTOCOL instance.\r | |
| 1496 | @param[in] BlockingMode Blocking or non-blocking mode.\r | |
| 1497 | \r | |
| 1498 | @retval EFI_SUCCESS All APs have arrived SMM mode except SMI disabled APs.\r | |
| 1499 | @retval EFI_TIMEOUT There are APs not in SMM mode in given timeout constraint.\r | |
| 1500 | \r | |
| 1501 | **/\r | |
| 1502 | EFI_STATUS\r | |
| 1503 | EFIAPI\r | |
| 1504 | SmmCpuRendezvous (\r | |
| 1505 | IN EDKII_SMM_CPU_RENDEZVOUS_PROTOCOL *This,\r | |
| 1506 | IN BOOLEAN BlockingMode\r | |
| 1507 | );\r | |
| 1508 | \r | |
| 1509 | /**\r | |
| 1510 | Insure when this function returns, no AP will execute normal mode code before entering SMM, except SMI disabled APs.\r | |
| 1511 | \r | |
| 1512 | **/\r | |
| 1513 | VOID\r | |
| 1514 | SmmWaitForApArrival (\r | |
| 1515 | VOID\r | |
| 1516 | );\r | |
| 1517 | \r | |
| 529a5a86 | 1518 | #endif\r |