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bc230057 ED |
1 | /** @file\r |
2 | Intel Processor Trace feature.\r | |
3 | \r | |
7367cc6c | 4 | Copyright (c) 2017 - 2018, Intel Corporation. All rights reserved.<BR>\r |
0acd8697 | 5 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
bc230057 ED |
6 | \r |
7 | **/\r | |
8 | \r | |
9 | #include "CpuCommonFeatures.h"\r | |
10 | \r | |
bc230057 | 11 | ///\r |
b2b0ffc9 | 12 | /// This macro define the max entries in the Topa table.\r |
7367cc6c LG |
13 | /// Each entry in the table contains some attribute bits, a pointer to an output region, and the size of the region.\r |
14 | /// The last entry in the table may hold a pointer to the next table. This pointer can either point to the top of the\r | |
15 | /// current table (for circular array) or to the base of another table.\r | |
16 | /// At least 2 entries are needed because the list of entries must\r | |
17 | /// be terminated by an entry with the END bit set to 1, so 2\r | |
b2b0ffc9 | 18 | /// entries are required to use a single valid entry.\r |
bc230057 | 19 | ///\r |
053e878b | 20 | #define MAX_TOPA_ENTRY_COUNT 2\r |
bc230057 ED |
21 | \r |
22 | ///\r | |
23 | /// Processor trace output scheme selection.\r | |
24 | ///\r | |
25 | typedef enum {\r | |
330021fa ED |
26 | RtitOutputSchemeSingleRange = 0,\r |
27 | RtitOutputSchemeToPA\r | |
28 | } RTIT_OUTPUT_SCHEME;\r | |
bc230057 ED |
29 | \r |
30 | typedef struct {\r | |
053e878b MK |
31 | BOOLEAN TopaSupported;\r |
32 | BOOLEAN SingleRangeSupported;\r | |
33 | MSR_IA32_RTIT_CTL_REGISTER RtitCtrl;\r | |
34 | MSR_IA32_RTIT_OUTPUT_BASE_REGISTER RtitOutputBase;\r | |
35 | MSR_IA32_RTIT_OUTPUT_MASK_PTRS_REGISTER RtitOutputMaskPtrs;\r | |
bc230057 ED |
36 | } PROC_TRACE_PROCESSOR_DATA;\r |
37 | \r | |
38 | typedef struct {\r | |
053e878b | 39 | UINT32 NumberOfProcessors;\r |
bc230057 | 40 | \r |
053e878b MK |
41 | UINT8 ProcTraceOutputScheme;\r |
42 | UINT32 ProcTraceMemSize;\r | |
bc230057 | 43 | \r |
053e878b MK |
44 | UINTN *ThreadMemRegionTable;\r |
45 | UINTN AllocatedThreads;\r | |
bc230057 | 46 | \r |
053e878b | 47 | UINTN *TopaMemArray;\r |
bc230057 | 48 | \r |
053e878b | 49 | PROC_TRACE_PROCESSOR_DATA *ProcessorData;\r |
bc230057 ED |
50 | } PROC_TRACE_DATA;\r |
51 | \r | |
52 | typedef struct {\r | |
b2b0ffc9 | 53 | RTIT_TOPA_TABLE_ENTRY TopaEntry[MAX_TOPA_ENTRY_COUNT];\r |
bc230057 ED |
54 | } PROC_TRACE_TOPA_TABLE;\r |
55 | \r | |
56 | /**\r | |
57 | Prepares for the data used by CPU feature detection and initialization.\r | |
58 | \r | |
59 | @param[in] NumberOfProcessors The number of CPUs in the platform.\r | |
60 | \r | |
61 | @return Pointer to a buffer of CPU related configuration data.\r | |
62 | \r | |
63 | @note This service could be called by BSP only.\r | |
64 | **/\r | |
65 | VOID *\r | |
66 | EFIAPI\r | |
67 | ProcTraceGetConfigData (\r | |
68 | IN UINTN NumberOfProcessors\r | |
69 | )\r | |
70 | {\r | |
71 | PROC_TRACE_DATA *ConfigData;\r | |
72 | \r | |
73 | ConfigData = AllocateZeroPool (sizeof (PROC_TRACE_DATA) + sizeof (PROC_TRACE_PROCESSOR_DATA) * NumberOfProcessors);\r | |
74 | ASSERT (ConfigData != NULL);\r | |
053e878b | 75 | ConfigData->ProcessorData = (PROC_TRACE_PROCESSOR_DATA *)((UINT8 *)ConfigData + sizeof (PROC_TRACE_DATA));\r |
bc230057 | 76 | \r |
053e878b MK |
77 | ConfigData->NumberOfProcessors = (UINT32)NumberOfProcessors;\r |
78 | ConfigData->ProcTraceMemSize = PcdGet32 (PcdCpuProcTraceMemSize);\r | |
bc230057 ED |
79 | ConfigData->ProcTraceOutputScheme = PcdGet8 (PcdCpuProcTraceOutputScheme);\r |
80 | \r | |
81 | return ConfigData;\r | |
82 | }\r | |
83 | \r | |
84 | /**\r | |
7367cc6c | 85 | Detects if Intel Processor Trace feature supported on current\r |
bc230057 ED |
86 | processor.\r |
87 | \r | |
88 | @param[in] ProcessorNumber The index of the CPU executing this function.\r | |
89 | @param[in] CpuInfo A pointer to the REGISTER_CPU_FEATURE_INFORMATION\r | |
90 | structure for the CPU executing this function.\r | |
91 | @param[in] ConfigData A pointer to the configuration buffer returned\r | |
92 | by CPU_FEATURE_GET_CONFIG_DATA. NULL if\r | |
93 | CPU_FEATURE_GET_CONFIG_DATA was not provided in\r | |
94 | RegisterCpuFeature().\r | |
95 | \r | |
96 | @retval TRUE Processor Trace feature is supported.\r | |
97 | @retval FALSE Processor Trace feature is not supported.\r | |
98 | \r | |
99 | @note This service could be called by BSP/APs.\r | |
100 | **/\r | |
101 | BOOLEAN\r | |
102 | EFIAPI\r | |
103 | ProcTraceSupport (\r | |
104 | IN UINTN ProcessorNumber,\r | |
105 | IN REGISTER_CPU_FEATURE_INFORMATION *CpuInfo,\r | |
106 | IN VOID *ConfigData OPTIONAL\r | |
107 | )\r | |
108 | {\r | |
053e878b MK |
109 | PROC_TRACE_DATA *ProcTraceData;\r |
110 | CPUID_STRUCTURED_EXTENDED_FEATURE_FLAGS_EBX Ebx;\r | |
111 | CPUID_INTEL_PROCESSOR_TRACE_MAIN_LEAF_ECX Ecx;\r | |
bc230057 ED |
112 | \r |
113 | //\r | |
114 | // Check if ProcTraceMemorySize option is enabled (0xFF means disable by user)\r | |
115 | //\r | |
053e878b | 116 | ProcTraceData = (PROC_TRACE_DATA *)ConfigData;\r |
3dcb5325 | 117 | ASSERT (ProcTraceData != NULL);\r |
b2b0ffc9 | 118 | if ((ProcTraceData->ProcTraceMemSize > RtitTopaMemorySize128M) ||\r |
053e878b MK |
119 | (ProcTraceData->ProcTraceOutputScheme > RtitOutputSchemeToPA))\r |
120 | {\r | |
bc230057 ED |
121 | return FALSE;\r |
122 | }\r | |
123 | \r | |
124 | //\r | |
125 | // Check if Processor Trace is supported\r | |
126 | //\r | |
127 | AsmCpuidEx (CPUID_STRUCTURED_EXTENDED_FEATURE_FLAGS, 0, NULL, &Ebx.Uint32, NULL, NULL);\r | |
49fb6057 | 128 | if (Ebx.Bits.IntelProcessorTrace == 0) {\r |
bc230057 ED |
129 | return FALSE;\r |
130 | }\r | |
131 | \r | |
132 | AsmCpuidEx (CPUID_INTEL_PROCESSOR_TRACE, CPUID_INTEL_PROCESSOR_TRACE_MAIN_LEAF, NULL, NULL, &Ecx.Uint32, NULL);\r | |
053e878b MK |
133 | ProcTraceData->ProcessorData[ProcessorNumber].TopaSupported = (BOOLEAN)(Ecx.Bits.RTIT == 1);\r |
134 | ProcTraceData->ProcessorData[ProcessorNumber].SingleRangeSupported = (BOOLEAN)(Ecx.Bits.SingleRangeOutput == 1);\r | |
330021fa | 135 | if ((ProcTraceData->ProcessorData[ProcessorNumber].TopaSupported && (ProcTraceData->ProcTraceOutputScheme == RtitOutputSchemeToPA)) ||\r |
053e878b MK |
136 | (ProcTraceData->ProcessorData[ProcessorNumber].SingleRangeSupported && (ProcTraceData->ProcTraceOutputScheme == RtitOutputSchemeSingleRange)))\r |
137 | {\r | |
138 | ProcTraceData->ProcessorData[ProcessorNumber].RtitCtrl.Uint64 = AsmReadMsr64 (MSR_IA32_RTIT_CTL);\r | |
139 | ProcTraceData->ProcessorData[ProcessorNumber].RtitOutputBase.Uint64 = AsmReadMsr64 (MSR_IA32_RTIT_OUTPUT_BASE);\r | |
49fb6057 | 140 | ProcTraceData->ProcessorData[ProcessorNumber].RtitOutputMaskPtrs.Uint64 = AsmReadMsr64 (MSR_IA32_RTIT_OUTPUT_MASK_PTRS);\r |
bc230057 ED |
141 | return TRUE;\r |
142 | }\r | |
143 | \r | |
144 | return FALSE;\r | |
145 | }\r | |
146 | \r | |
147 | /**\r | |
148 | Initializes Intel Processor Trace feature to specific state.\r | |
149 | \r | |
150 | @param[in] ProcessorNumber The index of the CPU executing this function.\r | |
151 | @param[in] CpuInfo A pointer to the REGISTER_CPU_FEATURE_INFORMATION\r | |
152 | structure for the CPU executing this function.\r | |
153 | @param[in] ConfigData A pointer to the configuration buffer returned\r | |
154 | by CPU_FEATURE_GET_CONFIG_DATA. NULL if\r | |
155 | CPU_FEATURE_GET_CONFIG_DATA was not provided in\r | |
156 | RegisterCpuFeature().\r | |
157 | @param[in] State If TRUE, then the Processor Trace feature must be\r | |
158 | enabled.\r | |
159 | If FALSE, then the Processor Trace feature must be\r | |
160 | disabled.\r | |
161 | \r | |
162 | @retval RETURN_SUCCESS Intel Processor Trace feature is initialized.\r | |
163 | \r | |
164 | **/\r | |
165 | RETURN_STATUS\r | |
166 | EFIAPI\r | |
167 | ProcTraceInitialize (\r | |
168 | IN UINTN ProcessorNumber,\r | |
169 | IN REGISTER_CPU_FEATURE_INFORMATION *CpuInfo,\r | |
4ec586b9 | 170 | IN VOID *ConfigData OPTIONAL,\r |
bc230057 ED |
171 | IN BOOLEAN State\r |
172 | )\r | |
173 | {\r | |
053e878b MK |
174 | UINT32 MemRegionSize;\r |
175 | UINTN Pages;\r | |
176 | UINTN Alignment;\r | |
177 | UINTN MemRegionBaseAddr;\r | |
178 | UINTN *ThreadMemRegionTable;\r | |
179 | UINTN Index;\r | |
180 | UINTN TopaTableBaseAddr;\r | |
181 | UINTN AlignedAddress;\r | |
182 | UINTN *TopaMemArray;\r | |
183 | PROC_TRACE_TOPA_TABLE *TopaTable;\r | |
184 | PROC_TRACE_DATA *ProcTraceData;\r | |
185 | BOOLEAN FirstIn;\r | |
186 | MSR_IA32_RTIT_CTL_REGISTER CtrlReg;\r | |
187 | MSR_IA32_RTIT_STATUS_REGISTER StatusReg;\r | |
188 | MSR_IA32_RTIT_OUTPUT_BASE_REGISTER OutputBaseReg;\r | |
b2b0ffc9 | 189 | MSR_IA32_RTIT_OUTPUT_MASK_PTRS_REGISTER OutputMaskPtrsReg;\r |
053e878b | 190 | RTIT_TOPA_TABLE_ENTRY *TopaEntryPtr;\r |
bc230057 | 191 | \r |
d28daadd ED |
192 | //\r |
193 | // The scope of the MSR_IA32_RTIT_* is core for below processor type, only program\r | |
194 | // MSR_IA32_RTIT_* for thread 0 in each core.\r | |
195 | //\r | |
196 | if (IS_GOLDMONT_PROCESSOR (CpuInfo->DisplayFamily, CpuInfo->DisplayModel) ||\r | |
053e878b MK |
197 | IS_GOLDMONT_PLUS_PROCESSOR (CpuInfo->DisplayFamily, CpuInfo->DisplayModel))\r |
198 | {\r | |
d28daadd ED |
199 | if (CpuInfo->ProcessorInfo.Location.Thread != 0) {\r |
200 | return RETURN_SUCCESS;\r | |
201 | }\r | |
202 | }\r | |
203 | \r | |
053e878b | 204 | ProcTraceData = (PROC_TRACE_DATA *)ConfigData;\r |
3dcb5325 | 205 | ASSERT (ProcTraceData != NULL);\r |
bc230057 | 206 | \r |
bc230057 ED |
207 | //\r |
208 | // Clear MSR_IA32_RTIT_CTL[0] and IA32_RTIT_STS only if MSR_IA32_RTIT_CTL[0]==1b\r | |
209 | //\r | |
49fb6057 | 210 | CtrlReg.Uint64 = ProcTraceData->ProcessorData[ProcessorNumber].RtitCtrl.Uint64;\r |
b2b0ffc9 | 211 | if (CtrlReg.Bits.TraceEn != 0) {\r |
bc230057 ED |
212 | ///\r |
213 | /// Clear bit 0 in MSR IA32_RTIT_CTL (570)\r | |
214 | ///\r | |
b2b0ffc9 | 215 | CtrlReg.Bits.TraceEn = 0;\r |
bc230057 ED |
216 | CPU_REGISTER_TABLE_WRITE64 (\r |
217 | ProcessorNumber,\r | |
218 | Msr,\r | |
219 | MSR_IA32_RTIT_CTL,\r | |
b2b0ffc9 | 220 | CtrlReg.Uint64\r |
bc230057 ED |
221 | );\r |
222 | \r | |
223 | ///\r | |
224 | /// Clear MSR IA32_RTIT_STS (571h) to all zeros\r | |
225 | ///\r | |
b2b0ffc9 | 226 | StatusReg.Uint64 = 0x0;\r |
bc230057 ED |
227 | CPU_REGISTER_TABLE_WRITE64 (\r |
228 | ProcessorNumber,\r | |
229 | Msr,\r | |
230 | MSR_IA32_RTIT_STATUS,\r | |
b2b0ffc9 | 231 | StatusReg.Uint64\r |
bc230057 ED |
232 | );\r |
233 | }\r | |
234 | \r | |
484dc050 SZ |
235 | if (!State) {\r |
236 | return RETURN_SUCCESS;\r | |
237 | }\r | |
238 | \r | |
239 | MemRegionBaseAddr = 0;\r | |
053e878b | 240 | FirstIn = FALSE;\r |
484dc050 SZ |
241 | \r |
242 | if (ProcTraceData->ThreadMemRegionTable == NULL) {\r | |
243 | FirstIn = TRUE;\r | |
244 | DEBUG ((DEBUG_INFO, "Initialize Processor Trace\n"));\r | |
245 | }\r | |
246 | \r | |
247 | ///\r | |
248 | /// Refer to PROC_TRACE_MEM_SIZE Table for Size Encoding\r | |
249 | ///\r | |
053e878b | 250 | MemRegionSize = (UINT32)(1 << (ProcTraceData->ProcTraceMemSize + 12));\r |
484dc050 SZ |
251 | if (FirstIn) {\r |
252 | DEBUG ((DEBUG_INFO, "ProcTrace: MemSize requested: 0x%X \n", MemRegionSize));\r | |
253 | }\r | |
254 | \r | |
bc230057 ED |
255 | if (FirstIn) {\r |
256 | //\r | |
257 | // Let BSP allocate and create the necessary memory region (Aligned to the size of\r | |
258 | // the memory region from setup option(ProcTraceMemSize) which is an integral multiple of 4kB)\r | |
49fb6057 | 259 | // for all the enabled threads to store Processor Trace debug data. Then Configure the trace\r |
bc230057 | 260 | // address base in MSR, IA32_RTIT_OUTPUT_BASE (560h) bits 47:12. Note that all regions must be\r |
49fb6057 | 261 | // aligned based on their size, not just 4K. Thus a 2M region must have bits 20:12 cleared.\r |
bc230057 | 262 | //\r |
053e878b | 263 | ThreadMemRegionTable = (UINTN *)AllocatePool (ProcTraceData->NumberOfProcessors * sizeof (UINTN *));\r |
bc230057 ED |
264 | if (ThreadMemRegionTable == NULL) {\r |
265 | DEBUG ((DEBUG_ERROR, "Allocate ProcTrace ThreadMemRegionTable Failed\n"));\r | |
266 | return RETURN_OUT_OF_RESOURCES;\r | |
267 | }\r | |
053e878b | 268 | \r |
bc230057 ED |
269 | ProcTraceData->ThreadMemRegionTable = ThreadMemRegionTable;\r |
270 | \r | |
271 | for (Index = 0; Index < ProcTraceData->NumberOfProcessors; Index++, ProcTraceData->AllocatedThreads++) {\r | |
053e878b MK |
272 | Pages = EFI_SIZE_TO_PAGES (MemRegionSize);\r |
273 | Alignment = MemRegionSize;\r | |
274 | AlignedAddress = (UINTN)AllocateAlignedReservedPages (Pages, Alignment);\r | |
bc230057 ED |
275 | if (AlignedAddress == 0) {\r |
276 | DEBUG ((DEBUG_ERROR, "ProcTrace: Out of mem, allocated only for %d threads\n", ProcTraceData->AllocatedThreads));\r | |
277 | if (Index == 0) {\r | |
278 | //\r | |
279 | // Could not allocate for BSP even\r | |
280 | //\r | |
053e878b | 281 | FreePool ((VOID *)ThreadMemRegionTable);\r |
bc230057 ED |
282 | ThreadMemRegionTable = NULL;\r |
283 | return RETURN_OUT_OF_RESOURCES;\r | |
284 | }\r | |
053e878b | 285 | \r |
bc230057 ED |
286 | break;\r |
287 | }\r | |
288 | \r | |
289 | ThreadMemRegionTable[Index] = AlignedAddress;\r | |
053e878b | 290 | DEBUG ((DEBUG_INFO, "ProcTrace: PT MemRegionBaseAddr(aligned) for thread %d: 0x%llX \n", Index, (UINT64)ThreadMemRegionTable[Index]));\r |
bc230057 ED |
291 | }\r |
292 | \r | |
293 | DEBUG ((DEBUG_INFO, "ProcTrace: Allocated PT mem for %d thread \n", ProcTraceData->AllocatedThreads));\r | |
49fb6057 SZ |
294 | }\r |
295 | \r | |
296 | if (ProcessorNumber < ProcTraceData->AllocatedThreads) {\r | |
297 | MemRegionBaseAddr = ProcTraceData->ThreadMemRegionTable[ProcessorNumber];\r | |
bc230057 | 298 | } else {\r |
49fb6057 | 299 | return RETURN_SUCCESS;\r |
bc230057 ED |
300 | }\r |
301 | \r | |
302 | ///\r | |
303 | /// Check Processor Trace output scheme: Single Range output or ToPA table\r | |
304 | ///\r | |
305 | \r | |
306 | //\r | |
307 | // Single Range output scheme\r | |
308 | //\r | |
7367cc6c | 309 | if (ProcTraceData->ProcessorData[ProcessorNumber].SingleRangeSupported &&\r |
053e878b MK |
310 | (ProcTraceData->ProcTraceOutputScheme == RtitOutputSchemeSingleRange))\r |
311 | {\r | |
bc230057 ED |
312 | if (FirstIn) {\r |
313 | DEBUG ((DEBUG_INFO, "ProcTrace: Enabling Single Range Output scheme \n"));\r | |
314 | }\r | |
315 | \r | |
316 | //\r | |
317 | // Clear MSR IA32_RTIT_CTL (0x570) ToPA (Bit 8)\r | |
318 | //\r | |
b2b0ffc9 | 319 | CtrlReg.Bits.ToPA = 0;\r |
bc230057 ED |
320 | CPU_REGISTER_TABLE_WRITE64 (\r |
321 | ProcessorNumber,\r | |
322 | Msr,\r | |
323 | MSR_IA32_RTIT_CTL,\r | |
b2b0ffc9 | 324 | CtrlReg.Uint64\r |
bc230057 ED |
325 | );\r |
326 | \r | |
327 | //\r | |
b2b0ffc9 | 328 | // Program MSR IA32_RTIT_OUTPUT_BASE (0x560) bits[63:7] with the allocated Memory Region\r |
bc230057 | 329 | //\r |
053e878b MK |
330 | OutputBaseReg.Uint64 = ProcTraceData->ProcessorData[ProcessorNumber].RtitOutputBase.Uint64;\r |
331 | OutputBaseReg.Bits.Base = (MemRegionBaseAddr >> 7) & 0x01FFFFFF;\r | |
332 | OutputBaseReg.Bits.BaseHi = RShiftU64 ((UINT64)MemRegionBaseAddr, 32) & 0xFFFFFFFF;\r | |
bc230057 ED |
333 | CPU_REGISTER_TABLE_WRITE64 (\r |
334 | ProcessorNumber,\r | |
335 | Msr,\r | |
336 | MSR_IA32_RTIT_OUTPUT_BASE,\r | |
b2b0ffc9 | 337 | OutputBaseReg.Uint64\r |
bc230057 ED |
338 | );\r |
339 | \r | |
340 | //\r | |
341 | // Program the Mask bits for the Memory Region to MSR IA32_RTIT_OUTPUT_MASK_PTRS (561h)\r | |
342 | //\r | |
053e878b | 343 | OutputMaskPtrsReg.Uint64 = ProcTraceData->ProcessorData[ProcessorNumber].RtitOutputMaskPtrs.Uint64;\r |
b2b0ffc9 | 344 | OutputMaskPtrsReg.Bits.MaskOrTableOffset = ((MemRegionSize - 1) >> 7) & 0x01FFFFFF;\r |
053e878b | 345 | OutputMaskPtrsReg.Bits.OutputOffset = RShiftU64 (MemRegionSize - 1, 32) & 0xFFFFFFFF;\r |
bc230057 ED |
346 | CPU_REGISTER_TABLE_WRITE64 (\r |
347 | ProcessorNumber,\r | |
348 | Msr,\r | |
349 | MSR_IA32_RTIT_OUTPUT_MASK_PTRS,\r | |
b2b0ffc9 | 350 | OutputMaskPtrsReg.Uint64\r |
bc230057 | 351 | );\r |
bc230057 ED |
352 | }\r |
353 | \r | |
354 | //\r | |
355 | // ToPA(Table of physical address) scheme\r | |
356 | //\r | |
7367cc6c | 357 | if (ProcTraceData->ProcessorData[ProcessorNumber].TopaSupported &&\r |
053e878b MK |
358 | (ProcTraceData->ProcTraceOutputScheme == RtitOutputSchemeToPA))\r |
359 | {\r | |
bc230057 ED |
360 | //\r |
361 | // Create ToPA structure aligned at 4KB for each logical thread\r | |
362 | // with at least 2 entries by 8 bytes size each. The first entry\r | |
363 | // should have the trace output base address in bits 47:12, 6:9\r | |
364 | // for Size, bits 4,2 and 0 must be cleared. The second entry\r | |
365 | // should have the base address of the table location in bits\r | |
366 | // 47:12, bits 4 and 2 must be cleared and bit 0 must be set.\r | |
367 | //\r | |
368 | if (FirstIn) {\r | |
369 | DEBUG ((DEBUG_INFO, "ProcTrace: Enabling ToPA scheme \n"));\r | |
370 | //\r | |
371 | // Let BSP allocate ToPA table mem for all threads\r | |
372 | //\r | |
053e878b | 373 | TopaMemArray = (UINTN *)AllocatePool (ProcTraceData->AllocatedThreads * sizeof (UINTN *));\r |
bc230057 ED |
374 | if (TopaMemArray == NULL) {\r |
375 | DEBUG ((DEBUG_ERROR, "ProcTrace: Allocate mem for ToPA Failed\n"));\r | |
376 | return RETURN_OUT_OF_RESOURCES;\r | |
377 | }\r | |
053e878b | 378 | \r |
bc230057 ED |
379 | ProcTraceData->TopaMemArray = TopaMemArray;\r |
380 | \r | |
381 | for (Index = 0; Index < ProcTraceData->AllocatedThreads; Index++) {\r | |
053e878b MK |
382 | Pages = EFI_SIZE_TO_PAGES (sizeof (PROC_TRACE_TOPA_TABLE));\r |
383 | Alignment = 0x1000;\r | |
384 | AlignedAddress = (UINTN)AllocateAlignedReservedPages (Pages, Alignment);\r | |
bc230057 ED |
385 | if (AlignedAddress == 0) {\r |
386 | if (Index < ProcTraceData->AllocatedThreads) {\r | |
387 | ProcTraceData->AllocatedThreads = Index;\r | |
388 | }\r | |
053e878b | 389 | \r |
49fb6057 | 390 | DEBUG ((DEBUG_ERROR, "ProcTrace: Out of mem, allocated ToPA mem only for %d threads\n", ProcTraceData->AllocatedThreads));\r |
bc230057 ED |
391 | if (Index == 0) {\r |
392 | //\r | |
49fb6057 | 393 | // Could not allocate for BSP even\r |
bc230057 | 394 | //\r |
053e878b | 395 | FreePool ((VOID *)TopaMemArray);\r |
bc230057 ED |
396 | TopaMemArray = NULL;\r |
397 | return RETURN_OUT_OF_RESOURCES;\r | |
398 | }\r | |
053e878b | 399 | \r |
bc230057 ED |
400 | break;\r |
401 | }\r | |
402 | \r | |
403 | TopaMemArray[Index] = AlignedAddress;\r | |
053e878b | 404 | DEBUG ((DEBUG_INFO, "ProcTrace: Topa table address(aligned) for thread %d is 0x%llX \n", Index, (UINT64)TopaMemArray[Index]));\r |
bc230057 ED |
405 | }\r |
406 | \r | |
407 | DEBUG ((DEBUG_INFO, "ProcTrace: Allocated ToPA mem for %d thread \n", ProcTraceData->AllocatedThreads));\r | |
49fb6057 SZ |
408 | }\r |
409 | \r | |
410 | if (ProcessorNumber < ProcTraceData->AllocatedThreads) {\r | |
411 | TopaTableBaseAddr = ProcTraceData->TopaMemArray[ProcessorNumber];\r | |
bc230057 | 412 | } else {\r |
49fb6057 | 413 | return RETURN_SUCCESS;\r |
bc230057 ED |
414 | }\r |
415 | \r | |
053e878b MK |
416 | TopaTable = (PROC_TRACE_TOPA_TABLE *)TopaTableBaseAddr;\r |
417 | TopaEntryPtr = &TopaTable->TopaEntry[0];\r | |
418 | TopaEntryPtr->Uint64 = 0;\r | |
419 | TopaEntryPtr->Bits.Base = (MemRegionBaseAddr >> 12) & 0x000FFFFF;\r | |
420 | TopaEntryPtr->Bits.BaseHi = RShiftU64 ((UINT64)MemRegionBaseAddr, 32) & 0xFFFFFFFF;\r | |
421 | TopaEntryPtr->Bits.Size = ProcTraceData->ProcTraceMemSize;\r | |
422 | TopaEntryPtr->Bits.END = 0;\r | |
b2b0ffc9 | 423 | \r |
053e878b MK |
424 | TopaEntryPtr = &TopaTable->TopaEntry[1];\r |
425 | TopaEntryPtr->Uint64 = 0;\r | |
426 | TopaEntryPtr->Bits.Base = (TopaTableBaseAddr >> 12) & 0x000FFFFF;\r | |
427 | TopaEntryPtr->Bits.BaseHi = RShiftU64 ((UINT64)TopaTableBaseAddr, 32) & 0xFFFFFFFF;\r | |
428 | TopaEntryPtr->Bits.END = 1;\r | |
bc230057 ED |
429 | \r |
430 | //\r | |
b2b0ffc9 | 431 | // Program the MSR IA32_RTIT_OUTPUT_BASE (0x560) bits[63:7] with ToPA base\r |
bc230057 | 432 | //\r |
053e878b MK |
433 | OutputBaseReg.Uint64 = ProcTraceData->ProcessorData[ProcessorNumber].RtitOutputBase.Uint64;\r |
434 | OutputBaseReg.Bits.Base = (TopaTableBaseAddr >> 7) & 0x01FFFFFF;\r | |
435 | OutputBaseReg.Bits.BaseHi = RShiftU64 ((UINT64)TopaTableBaseAddr, 32) & 0xFFFFFFFF;\r | |
bc230057 ED |
436 | CPU_REGISTER_TABLE_WRITE64 (\r |
437 | ProcessorNumber,\r | |
438 | Msr,\r | |
439 | MSR_IA32_RTIT_OUTPUT_BASE,\r | |
b2b0ffc9 | 440 | OutputBaseReg.Uint64\r |
bc230057 ED |
441 | );\r |
442 | \r | |
443 | //\r | |
444 | // Set the MSR IA32_RTIT_OUTPUT_MASK (0x561) bits[63:7] to 0\r | |
445 | //\r | |
053e878b | 446 | OutputMaskPtrsReg.Uint64 = ProcTraceData->ProcessorData[ProcessorNumber].RtitOutputMaskPtrs.Uint64;\r |
b2b0ffc9 | 447 | OutputMaskPtrsReg.Bits.MaskOrTableOffset = 0;\r |
053e878b | 448 | OutputMaskPtrsReg.Bits.OutputOffset = 0;\r |
bc230057 ED |
449 | CPU_REGISTER_TABLE_WRITE64 (\r |
450 | ProcessorNumber,\r | |
451 | Msr,\r | |
452 | MSR_IA32_RTIT_OUTPUT_MASK_PTRS,\r | |
b2b0ffc9 | 453 | OutputMaskPtrsReg.Uint64\r |
bc230057 ED |
454 | );\r |
455 | //\r | |
456 | // Enable ToPA output scheme by enabling MSR IA32_RTIT_CTL (0x570) ToPA (Bit 8)\r | |
457 | //\r | |
b2b0ffc9 | 458 | CtrlReg.Bits.ToPA = 1;\r |
bc230057 ED |
459 | CPU_REGISTER_TABLE_WRITE64 (\r |
460 | ProcessorNumber,\r | |
461 | Msr,\r | |
462 | MSR_IA32_RTIT_CTL,\r | |
b2b0ffc9 | 463 | CtrlReg.Uint64\r |
bc230057 ED |
464 | );\r |
465 | }\r | |
466 | \r | |
467 | ///\r | |
468 | /// Enable the Processor Trace feature from MSR IA32_RTIT_CTL (570h)\r | |
469 | ///\r | |
053e878b MK |
470 | CtrlReg.Bits.OS = 1;\r |
471 | CtrlReg.Bits.User = 1;\r | |
b2b0ffc9 | 472 | CtrlReg.Bits.BranchEn = 1;\r |
053e878b | 473 | CtrlReg.Bits.TraceEn = 1;\r |
bc230057 ED |
474 | CPU_REGISTER_TABLE_WRITE64 (\r |
475 | ProcessorNumber,\r | |
476 | Msr,\r | |
477 | MSR_IA32_RTIT_CTL,\r | |
b2b0ffc9 | 478 | CtrlReg.Uint64\r |
bc230057 ED |
479 | );\r |
480 | \r | |
481 | return RETURN_SUCCESS;\r | |
482 | }\r |