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UefiCpuPkg: Move AsmRelocateApLoopStart from Mpfuncs.nasm to AmdSev.nasm
[mirror_edk2.git] / EmulatorPkg / CpuRuntimeDxe / Cpu.c
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1/*++ @file\r
2 Emu driver to produce CPU Architectural Protocol.\r
3\r
4Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>\r
5Portions copyright (c) 2011 - 2012, Apple Inc. All rights reserved.\r
6SPDX-License-Identifier: BSD-2-Clause-Patent\r
7\r
8**/\r
9\r
10#include "CpuDriver.h"\r
11\r
12UINT64 mTimerPeriod;\r
13\r
14CPU_ARCH_PROTOCOL_PRIVATE mCpuTemplate = {\r
15 CPU_ARCH_PROT_PRIVATE_SIGNATURE,\r
16 NULL,\r
17 {\r
18 EmuFlushCpuDataCache,\r
19 EmuEnableInterrupt,\r
20 EmuDisableInterrupt,\r
21 EmuGetInterruptState,\r
22 EmuInit,\r
23 EmuRegisterInterruptHandler,\r
24 EmuGetTimerValue,\r
25 EmuSetMemoryAttributes,\r
26 0,\r
27 4\r
28 },\r
29 {\r
30 {\r
31 CpuMemoryServiceRead,\r
32 CpuMemoryServiceWrite\r
33 },\r
34 {\r
35 CpuIoServiceRead,\r
36 CpuIoServiceWrite\r
37 }\r
38 },\r
39 TRUE\r
40};\r
41\r
42#define EFI_CPU_DATA_MAXIMUM_LENGTH 0x100\r
43\r
44SMBIOS_TABLE_TYPE4 mCpuSmbiosType4 = {\r
45 { EFI_SMBIOS_TYPE_PROCESSOR_INFORMATION, sizeof (SMBIOS_TABLE_TYPE4), 0 },\r
46 1, // Socket String\r
47 ProcessorOther, // ProcessorType; ///< The enumeration value from PROCESSOR_TYPE_DATA.\r
48 ProcessorFamilyOther, // ProcessorFamily; ///< The enumeration value from PROCESSOR_FAMILY_DATA.\r
49 2, // ProcessorManufacture String;\r
50 { // ProcessorId;\r
51 { // PROCESSOR_SIGNATURE\r
52 0, // ProcessorSteppingId:4;\r
53 0, // ProcessorModel: 4;\r
54 0, // ProcessorFamily: 4;\r
55 0, // ProcessorType: 2;\r
56 0, // ProcessorReserved1: 2;\r
57 0, // ProcessorXModel: 4;\r
58 0, // ProcessorXFamily: 8;\r
59 0, // ProcessorReserved2: 4;\r
60 },\r
61 { // PROCESSOR_FEATURE_FLAGS\r
62 0, // ProcessorFpu :1;\r
63 0, // ProcessorVme :1;\r
64 0, // ProcessorDe :1;\r
65 0, // ProcessorPse :1;\r
66 0, // ProcessorTsc :1;\r
67 0, // ProcessorMsr :1;\r
68 0, // ProcessorPae :1;\r
69 0, // ProcessorMce :1;\r
70 0, // ProcessorCx8 :1;\r
71 0, // ProcessorApic :1;\r
72 0, // ProcessorReserved1 :1;\r
73 0, // ProcessorSep :1;\r
74 0, // ProcessorMtrr :1;\r
75 0, // ProcessorPge :1;\r
76 0, // ProcessorMca :1;\r
77 0, // ProcessorCmov :1;\r
78 0, // ProcessorPat :1;\r
79 0, // ProcessorPse36 :1;\r
80 0, // ProcessorPsn :1;\r
81 0, // ProcessorClfsh :1;\r
82 0, // ProcessorReserved2 :1;\r
83 0, // ProcessorDs :1;\r
84 0, // ProcessorAcpi :1;\r
85 0, // ProcessorMmx :1;\r
86 0, // ProcessorFxsr :1;\r
87 0, // ProcessorSse :1;\r
88 0, // ProcessorSse2 :1;\r
89 0, // ProcessorSs :1;\r
90 0, // ProcessorReserved3 :1;\r
91 0, // ProcessorTm :1;\r
92 0, // ProcessorReserved4 :2;\r
93 }\r
94 },\r
95 3, // ProcessorVersion String;\r
96 { // Voltage;\r
97 1, // ProcessorVoltageCapability5V :1;\r
98 1, // ProcessorVoltageCapability3_3V :1;\r
99 1, // ProcessorVoltageCapability2_9V :1;\r
100 0, // ProcessorVoltageCapabilityReserved :1; ///< Bit 3, must be zero.\r
101 0, // ProcessorVoltageReserved :3; ///< Bits 4-6, must be zero.\r
102 0 // ProcessorVoltageIndicateLegacy :1;\r
103 },\r
104 0, // ExternalClock;\r
105 0, // MaxSpeed;\r
106 0, // CurrentSpeed;\r
107 0x41, // Status;\r
108 ProcessorUpgradeOther, // ProcessorUpgrade; ///< The enumeration value from PROCESSOR_UPGRADE.\r
109 0, // L1CacheHandle;\r
110 0, // L2CacheHandle;\r
111 0, // L3CacheHandle;\r
112 4, // SerialNumber;\r
113 5, // AssetTag;\r
114 6, // PartNumber;\r
115 0, // CoreCount;\r
116 0, // EnabledCoreCount;\r
117 0, // ThreadCount;\r
118 0, // ProcessorCharacteristics;\r
119 0, // ProcessorFamily2;\r
120};\r
121\r
122CHAR8 *mCpuSmbiosType4Strings[] = {\r
123 "Socket",\r
124 "http://www.tianocore.org/edk2/",\r
125 "Emulated Processor",\r
126 "1.0",\r
127 "1.0",\r
128 "1.0",\r
129 NULL\r
130};\r
131\r
132/**\r
133 Create SMBIOS record.\r
134\r
135 Converts a fixed SMBIOS structure and an array of pointers to strings into\r
136 an SMBIOS record where the strings are cat'ed on the end of the fixed record\r
137 and terminated via a double NULL and add to SMBIOS table.\r
138\r
139 SMBIOS_TABLE_TYPE32 gSmbiosType12 = {\r
140 { EFI_SMBIOS_TYPE_SYSTEM_CONFIGURATION_OPTIONS, sizeof (SMBIOS_TABLE_TYPE12), 0 },\r
141 1 // StringCount\r
142 };\r
143 CHAR8 *gSmbiosType12Strings[] = {\r
144 "Not Found",\r
145 NULL\r
146 };\r
147\r
148 ...\r
149 LogSmbiosData (\r
150 (EFI_SMBIOS_TABLE_HEADER*)&gSmbiosType12,\r
151 gSmbiosType12Strings\r
152 );\r
153\r
154 @param Template Fixed SMBIOS structure, required.\r
155 @param StringArray Array of strings to convert to an SMBIOS string pack.\r
156 NULL is OK.\r
157\r
158**/\r
159EFI_STATUS\r
160LogSmbiosData (\r
161 IN EFI_SMBIOS_TABLE_HEADER *Template,\r
162 IN CHAR8 **StringPack\r
163 )\r
164{\r
165 EFI_STATUS Status;\r
166 EFI_SMBIOS_PROTOCOL *Smbios;\r
167 EFI_SMBIOS_HANDLE SmbiosHandle;\r
168 EFI_SMBIOS_TABLE_HEADER *Record;\r
169 UINTN Index;\r
170 UINTN StringSize;\r
171 UINTN Size;\r
172 CHAR8 *Str;\r
173\r
174 //\r
175 // Locate Smbios protocol.\r
176 //\r
177 Status = gBS->LocateProtocol (&gEfiSmbiosProtocolGuid, NULL, (VOID **)&Smbios);\r
178 if (EFI_ERROR (Status)) {\r
179 return Status;\r
180 }\r
181\r
182 // Calculate the size of the fixed record and optional string pack\r
183 Size = Template->Length;\r
184 if (StringPack == NULL) {\r
185 // At least a double null is required\r
186 Size += 2;\r
187 } else {\r
188 for (Index = 0; StringPack[Index] != NULL; Index++) {\r
189 StringSize = AsciiStrSize (StringPack[Index]);\r
190 Size += StringSize;\r
191 }\r
192\r
193 if (StringPack[0] == NULL) {\r
194 // At least a double null is required\r
195 Size += 1;\r
196 }\r
197\r
198 // Don't forget the terminating double null\r
199 Size += 1;\r
200 }\r
201\r
202 // Copy over Template\r
203 Record = (EFI_SMBIOS_TABLE_HEADER *)AllocateZeroPool (Size);\r
204 if (Record == NULL) {\r
205 return EFI_OUT_OF_RESOURCES;\r
206 }\r
207\r
208 CopyMem (Record, Template, Template->Length);\r
209\r
210 // Append string pack\r
211 Str = ((CHAR8 *)Record) + Record->Length;\r
212 for (Index = 0; StringPack[Index] != NULL; Index++) {\r
213 StringSize = AsciiStrSize (StringPack[Index]);\r
214 CopyMem (Str, StringPack[Index], StringSize);\r
215 Str += StringSize;\r
216 }\r
217\r
218 *Str = 0;\r
219\r
220 SmbiosHandle = SMBIOS_HANDLE_PI_RESERVED;\r
221 Status = Smbios->Add (\r
222 Smbios,\r
223 gImageHandle,\r
224 &SmbiosHandle,\r
225 Record\r
226 );\r
227 ASSERT_EFI_ERROR (Status);\r
228\r
229 FreePool (Record);\r
230 return Status;\r
231}\r
232\r
233VOID\r
234CpuUpdateSmbios (\r
235 IN UINTN MaxCpus\r
236 )\r
237{\r
238 mCpuSmbiosType4.CoreCount = (UINT8)MaxCpus;\r
239 mCpuSmbiosType4.EnabledCoreCount = (UINT8)MaxCpus;\r
240 mCpuSmbiosType4.ThreadCount = (UINT8)MaxCpus;\r
241 //\r
242 // The value of 1234 is fake value for CPU frequency\r
243 //\r
244 mCpuSmbiosType4.CurrentSpeed = 1234;\r
245 LogSmbiosData ((EFI_SMBIOS_TABLE_HEADER *)&mCpuSmbiosType4, mCpuSmbiosType4Strings);\r
246}\r
247\r
248//\r
249// Service routines for the driver\r
250//\r
251EFI_STATUS\r
252EFIAPI\r
253EmuFlushCpuDataCache (\r
254 IN EFI_CPU_ARCH_PROTOCOL *This,\r
255 IN EFI_PHYSICAL_ADDRESS Start,\r
256 IN UINT64 Length,\r
257 IN EFI_CPU_FLUSH_TYPE FlushType\r
258 )\r
259{\r
260 if (FlushType == EfiCpuFlushTypeWriteBackInvalidate) {\r
261 //\r
262 // Only WB flush is supported. We actually need do nothing on Emu emulator\r
263 // environment. Classify this to follow EFI spec\r
264 //\r
265 return EFI_SUCCESS;\r
266 }\r
267\r
268 //\r
269 // Other flush types are not supported by Emu emulator\r
270 //\r
271 return EFI_UNSUPPORTED;\r
272}\r
273\r
274EFI_STATUS\r
275EFIAPI\r
276EmuEnableInterrupt (\r
277 IN EFI_CPU_ARCH_PROTOCOL *This\r
278 )\r
279{\r
280 CPU_ARCH_PROTOCOL_PRIVATE *Private;\r
281\r
282 Private = CPU_ARCH_PROTOCOL_PRIVATE_DATA_FROM_THIS (This);\r
283 Private->InterruptState = TRUE;\r
284 gEmuThunk->EnableInterrupt ();\r
285 return EFI_SUCCESS;\r
286}\r
287\r
288EFI_STATUS\r
289EFIAPI\r
290EmuDisableInterrupt (\r
291 IN EFI_CPU_ARCH_PROTOCOL *This\r
292 )\r
293{\r
294 CPU_ARCH_PROTOCOL_PRIVATE *Private;\r
295\r
296 Private = CPU_ARCH_PROTOCOL_PRIVATE_DATA_FROM_THIS (This);\r
297 Private->InterruptState = FALSE;\r
298 gEmuThunk->DisableInterrupt ();\r
299 return EFI_SUCCESS;\r
300}\r
301\r
302EFI_STATUS\r
303EFIAPI\r
304EmuGetInterruptState (\r
305 IN EFI_CPU_ARCH_PROTOCOL *This,\r
306 OUT BOOLEAN *State\r
307 )\r
308{\r
309 CPU_ARCH_PROTOCOL_PRIVATE *Private;\r
310\r
311 if (State == NULL) {\r
312 return EFI_INVALID_PARAMETER;\r
313 }\r
314\r
315 Private = CPU_ARCH_PROTOCOL_PRIVATE_DATA_FROM_THIS (This);\r
316 *State = Private->InterruptState;\r
317 return EFI_SUCCESS;\r
318}\r
319\r
320EFI_STATUS\r
321EFIAPI\r
322EmuInit (\r
323 IN EFI_CPU_ARCH_PROTOCOL *This,\r
324 IN EFI_CPU_INIT_TYPE InitType\r
325 )\r
326{\r
327 return EFI_UNSUPPORTED;\r
328}\r
329\r
330EFI_STATUS\r
331EFIAPI\r
332EmuRegisterInterruptHandler (\r
333 IN EFI_CPU_ARCH_PROTOCOL *This,\r
334 IN EFI_EXCEPTION_TYPE InterruptType,\r
335 IN EFI_CPU_INTERRUPT_HANDLER InterruptHandler\r
336 )\r
337{\r
338 //\r
339 // Do parameter checking for EFI spec conformance\r
340 //\r
341 if ((InterruptType < 0) || (InterruptType > 0xff)) {\r
342 return EFI_UNSUPPORTED;\r
343 }\r
344\r
345 //\r
346 // Do nothing for Emu emulation\r
347 //\r
348 return EFI_UNSUPPORTED;\r
349}\r
350\r
351EFI_STATUS\r
352EFIAPI\r
353EmuGetTimerValue (\r
354 IN EFI_CPU_ARCH_PROTOCOL *This,\r
355 IN UINT32 TimerIndex,\r
356 OUT UINT64 *TimerValue,\r
357 OUT UINT64 *TimerPeriod OPTIONAL\r
358 )\r
359{\r
360 if (TimerValue == NULL) {\r
361 return EFI_INVALID_PARAMETER;\r
362 }\r
363\r
364 if (TimerIndex != 0) {\r
365 return EFI_INVALID_PARAMETER;\r
366 }\r
367\r
368 *TimerValue = gEmuThunk->QueryPerformanceCounter ();\r
369\r
370 if (TimerPeriod != NULL) {\r
371 *TimerPeriod = mTimerPeriod;\r
372 }\r
373\r
374 return EFI_SUCCESS;\r
375}\r
376\r
377EFI_STATUS\r
378EFIAPI\r
379EmuSetMemoryAttributes (\r
380 IN EFI_CPU_ARCH_PROTOCOL *This,\r
381 IN EFI_PHYSICAL_ADDRESS BaseAddress,\r
382 IN UINT64 Length,\r
383 IN UINT64 Attributes\r
384 )\r
385{\r
386 //\r
387 // Check for invalid parameter for Spec conformance\r
388 //\r
389 if (Length == 0) {\r
390 return EFI_INVALID_PARAMETER;\r
391 }\r
392\r
393 //\r
394 // Do nothing for Nt32 emulation\r
395 //\r
396 return EFI_UNSUPPORTED;\r
397}\r
398\r
399/**\r
400 Callback function for idle events.\r
401\r
402 @param Event Event whose notification function is being invoked.\r
403 @param Context The pointer to the notification function's context,\r
404 which is implementation-dependent.\r
405\r
406**/\r
407VOID\r
408EFIAPI\r
409IdleLoopEventCallback (\r
410 IN EFI_EVENT Event,\r
411 IN VOID *Context\r
412 )\r
413{\r
414 gEmuThunk->CpuSleep ();\r
415}\r
416\r
417EFI_STATUS\r
418EFIAPI\r
419InitializeCpu (\r
420 IN EFI_HANDLE ImageHandle,\r
421 IN EFI_SYSTEM_TABLE *SystemTable\r
422 )\r
423{\r
424 EFI_STATUS Status;\r
425 UINT64 Frequency;\r
426 EFI_EVENT IdleLoopEvent;\r
427 UINTN MaxCpu;\r
428\r
429 //\r
430 // Retrieve the frequency of the performance counter in Hz.\r
431 //\r
432 Frequency = gEmuThunk->QueryPerformanceFrequency ();\r
433\r
434 //\r
435 // Convert frequency in Hz to a clock period in femtoseconds.\r
436 //\r
437 mTimerPeriod = DivU64x64Remainder (1000000000000000ULL, Frequency, NULL);\r
438\r
439 CpuMpServicesInit (&MaxCpu);\r
440\r
441 CpuUpdateSmbios (MaxCpu);\r
442\r
443 Status = gBS->CreateEventEx (\r
444 EVT_NOTIFY_SIGNAL,\r
445 TPL_NOTIFY,\r
446 IdleLoopEventCallback,\r
447 NULL,\r
448 &gIdleLoopEventGuid,\r
449 &IdleLoopEvent\r
450 );\r
451 ASSERT_EFI_ERROR (Status);\r
452\r
453 Status = gBS->InstallMultipleProtocolInterfaces (\r
454 &mCpuTemplate.Handle,\r
455 &gEfiCpuArchProtocolGuid,\r
456 &mCpuTemplate.Cpu,\r
457 &gEfiCpuIo2ProtocolGuid,\r
458 &mCpuTemplate.CpuIo,\r
459 NULL\r
460 );\r
461 ASSERT_EFI_ERROR (Status);\r
462\r
463 return Status;\r
464}\r
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