--- /dev/null
+/*++\r
+\r
+Copyright (c) 2006, Intel Corporation \r
+All rights reserved. This program and the accompanying materials \r
+are licensed and made available under the terms and conditions of the BSD License \r
+which accompanies this distribution. The full text of the license may be found at \r
+http://opensource.org/licenses/bsd-license.php \r
+ \r
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
+\r
+Module Name:\r
+\r
+ Cpu.c\r
+\r
+Abstract:\r
+\r
+ Unix Emulation Architectural Protocol Driver as defined in Tiano.\r
+ This CPU module abstracts the interrupt subsystem of a platform and\r
+ the CPU-specific setjump/long pair. Other services are not implemented\r
+ in this driver.\r
+\r
+--*/\r
+\r
+#include "CpuDriver.h"\r
+\r
+#define EFI_CPU_DATA_MAXIMUM_LENGTH 0x100\r
+\r
+EFI_STATUS\r
+EFIAPI\r
+InitializeCpu (\r
+ IN EFI_HANDLE ImageHandle,\r
+ IN EFI_SYSTEM_TABLE *SystemTable\r
+ );\r
+\r
+VOID\r
+EFIAPI\r
+UnixIoProtocolNotifyFunction (\r
+ IN EFI_EVENT Event,\r
+ IN VOID *Context\r
+ );\r
+\r
+typedef union {\r
+ EFI_CPU_DATA_RECORD *DataRecord;\r
+ UINT8 *Raw;\r
+} EFI_CPU_DATA_RECORD_BUFFER;\r
+\r
+EFI_SUBCLASS_TYPE1_HEADER mCpuDataRecordHeader = {\r
+ EFI_PROCESSOR_SUBCLASS_VERSION, // Version\r
+ sizeof (EFI_SUBCLASS_TYPE1_HEADER), // Header Size\r
+ 0, // Instance, Initialize later\r
+ EFI_SUBCLASS_INSTANCE_NON_APPLICABLE, // SubInstance\r
+ 0 // RecordType, Initialize later\r
+};\r
+\r
+//\r
+// Service routines for the driver\r
+//\r
+STATIC\r
+EFI_STATUS\r
+EFIAPI\r
+UnixFlushCpuDataCache (\r
+ IN EFI_CPU_ARCH_PROTOCOL *This,\r
+ IN EFI_PHYSICAL_ADDRESS Start,\r
+ IN UINT64 Length,\r
+ IN EFI_CPU_FLUSH_TYPE FlushType\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+\r
+ This routine would provide support for flushing the CPU data cache.\r
+ In the case of NT emulation environment, this flushing is not necessary and\r
+ is thus not implemented.\r
+\r
+Arguments:\r
+\r
+ Pointer to CPU Architectural Protocol interface\r
+ Start adddress in memory to flush\r
+ Length of memory to flush\r
+ Flush type\r
+\r
+Returns:\r
+\r
+ Status\r
+ EFI_SUCCESS\r
+\r
+--*/\r
+// TODO: This - add argument and description to function comment\r
+// TODO: FlushType - add argument and description to function comment\r
+// TODO: EFI_UNSUPPORTED - add return value to function comment\r
+{\r
+ if (FlushType == EfiCpuFlushTypeWriteBackInvalidate) {\r
+ //\r
+ // Only WB flush is supported. We actually need do nothing on NT emulator\r
+ // environment. Classify this to follow EFI spec\r
+ //\r
+ return EFI_SUCCESS;\r
+ }\r
+ //\r
+ // Other flush types are not supported by NT emulator\r
+ //\r
+ return EFI_UNSUPPORTED;\r
+}\r
+\r
+STATIC\r
+EFI_STATUS\r
+EFIAPI\r
+UnixEnableInterrupt (\r
+ IN EFI_CPU_ARCH_PROTOCOL *This\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+\r
+ This routine provides support for emulation of the interrupt enable of the\r
+ the system. For our purposes, CPU enable is just a BOOLEAN that the Timer \r
+ Architectural Protocol observes in order to defer behaviour while in its\r
+ emulated interrupt, or timer tick.\r
+\r
+Arguments:\r
+\r
+ Pointer to CPU Architectural Protocol interface\r
+\r
+Returns:\r
+\r
+ Status\r
+ EFI_SUCCESS\r
+\r
+--*/\r
+// TODO: This - add argument and description to function comment\r
+{\r
+ CPU_ARCH_PROTOCOL_PRIVATE *Private;\r
+\r
+ Private = CPU_ARCH_PROTOCOL_PRIVATE_DATA_FROM_THIS (This);\r
+ Private->InterruptState = TRUE;\r
+ return EFI_SUCCESS;\r
+}\r
+\r
+STATIC\r
+EFI_STATUS\r
+EFIAPI\r
+UnixDisableInterrupt (\r
+ IN EFI_CPU_ARCH_PROTOCOL *This\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+\r
+ This routine provides support for emulation of the interrupt disable of the\r
+ the system. For our purposes, CPU enable is just a BOOLEAN that the Timer \r
+ Architectural Protocol observes in order to defer behaviour while in its\r
+ emulated interrupt, or timer tick.\r
+\r
+Arguments:\r
+\r
+ Pointer to CPU Architectural Protocol interface\r
+\r
+Returns:\r
+\r
+ Status\r
+ EFI_SUCCESS\r
+\r
+--*/\r
+// TODO: This - add argument and description to function comment\r
+{\r
+ CPU_ARCH_PROTOCOL_PRIVATE *Private;\r
+\r
+ Private = CPU_ARCH_PROTOCOL_PRIVATE_DATA_FROM_THIS (This);\r
+ Private->InterruptState = FALSE;\r
+ return EFI_SUCCESS;\r
+}\r
+\r
+STATIC\r
+EFI_STATUS\r
+EFIAPI\r
+UnixGetInterruptState (\r
+ IN EFI_CPU_ARCH_PROTOCOL *This,\r
+ OUT BOOLEAN *State\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+\r
+ This routine provides support for emulation of the interrupt disable of the\r
+ the system. For our purposes, CPU enable is just a BOOLEAN that the Timer \r
+ Architectural Protocol observes in order to defer behaviour while in its\r
+ emulated interrupt, or timer tick.\r
+\r
+Arguments:\r
+\r
+ Pointer to CPU Architectural Protocol interface\r
+\r
+Returns:\r
+\r
+ Status\r
+ EFI_SUCCESS\r
+\r
+--*/\r
+// TODO: This - add argument and description to function comment\r
+// TODO: State - add argument and description to function comment\r
+// TODO: EFI_INVALID_PARAMETER - add return value to function comment\r
+{\r
+ CPU_ARCH_PROTOCOL_PRIVATE *Private;\r
+\r
+ if (State == NULL) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ Private = CPU_ARCH_PROTOCOL_PRIVATE_DATA_FROM_THIS (This);\r
+ *State = Private->InterruptState;\r
+ return EFI_SUCCESS;\r
+}\r
+\r
+STATIC\r
+EFI_STATUS\r
+EFIAPI\r
+UnixInit (\r
+ IN EFI_CPU_ARCH_PROTOCOL *This,\r
+ IN EFI_CPU_INIT_TYPE InitType\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+\r
+ This routine would support generation of a CPU INIT. At \r
+ present, this code does not provide emulation. \r
+\r
+Arguments:\r
+\r
+ Pointer to CPU Architectural Protocol interface\r
+ INIT Type\r
+\r
+Returns:\r
+\r
+ Status\r
+ EFI_UNSUPPORTED - not yet implemented\r
+\r
+--*/\r
+// TODO: This - add argument and description to function comment\r
+// TODO: InitType - add argument and description to function comment\r
+{\r
+ CPU_ARCH_PROTOCOL_PRIVATE *Private;\r
+\r
+ Private = CPU_ARCH_PROTOCOL_PRIVATE_DATA_FROM_THIS (This);\r
+ return EFI_UNSUPPORTED;\r
+}\r
+\r
+STATIC\r
+EFI_STATUS\r
+EFIAPI\r
+UnixRegisterInterruptHandler (\r
+ IN EFI_CPU_ARCH_PROTOCOL *This,\r
+ IN EFI_EXCEPTION_TYPE InterruptType,\r
+ IN EFI_CPU_INTERRUPT_HANDLER InterruptHandler\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+\r
+ This routine would support registration of an interrupt handler. At \r
+ present, this code does not provide emulation. \r
+\r
+Arguments:\r
+\r
+ Pointer to CPU Architectural Protocol interface\r
+ Pointer to interrupt handlers\r
+ Interrupt type\r
+\r
+Returns:\r
+\r
+ Status\r
+ EFI_UNSUPPORTED - not yet implemented\r
+\r
+--*/\r
+// TODO: This - add argument and description to function comment\r
+// TODO: InterruptType - add argument and description to function comment\r
+// TODO: InterruptHandler - add argument and description to function comment\r
+{\r
+ CPU_ARCH_PROTOCOL_PRIVATE *Private;\r
+\r
+ //\r
+ // Do parameter checking for EFI spec conformance\r
+ //\r
+ if (InterruptType < 0 || InterruptType > 0xff) {\r
+ return EFI_UNSUPPORTED;\r
+ }\r
+ //\r
+ // Do nothing for Nt32 emulation\r
+ //\r
+ Private = CPU_ARCH_PROTOCOL_PRIVATE_DATA_FROM_THIS (This);\r
+ return EFI_UNSUPPORTED;\r
+}\r
+\r
+STATIC\r
+EFI_STATUS\r
+EFIAPI\r
+UnixGetTimerValue (\r
+ IN EFI_CPU_ARCH_PROTOCOL *This,\r
+ IN UINT32 TimerIndex,\r
+ OUT UINT64 *TimerValue,\r
+ OUT UINT64 *TimerPeriod OPTIONAL\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+\r
+ This routine would support querying of an on-CPU timer. At present, \r
+ this code does not provide timer emulation. \r
+\r
+Arguments:\r
+\r
+ This - Pointer to CPU Architectural Protocol interface\r
+ TimerIndex - Index of given CPU timer\r
+ TimerValue - Output of the timer\r
+ TimerPeriod - Output of the timer period\r
+\r
+Returns:\r
+\r
+ EFI_UNSUPPORTED - not yet implemented\r
+ EFI_INVALID_PARAMETER - TimeValue is NULL\r
+\r
+--*/\r
+{\r
+ if (TimerValue == NULL) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+ \r
+ //\r
+ // No timer supported\r
+ //\r
+ return EFI_UNSUPPORTED;\r
+}\r
+\r
+STATIC\r
+EFI_STATUS\r
+EFIAPI\r
+UnixSetMemoryAttributes (\r
+ IN EFI_CPU_ARCH_PROTOCOL *This,\r
+ IN EFI_PHYSICAL_ADDRESS BaseAddress,\r
+ IN UINT64 Length,\r
+ IN UINT64 Attributes\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+\r
+ This routine would support querying of an on-CPU timer. At present, \r
+ this code does not provide timer emulation. \r
+\r
+Arguments:\r
+\r
+ Pointer to CPU Architectural Protocol interface\r
+ Start address of memory region\r
+ The size in bytes of the memory region\r
+ The bit mask of attributes to set for the memory region\r
+\r
+Returns:\r
+\r
+ Status\r
+ EFI_UNSUPPORTED - not yet implemented\r
+\r
+--*/\r
+// TODO: This - add argument and description to function comment\r
+// TODO: BaseAddress - add argument and description to function comment\r
+// TODO: Length - add argument and description to function comment\r
+// TODO: Attributes - add argument and description to function comment\r
+// TODO: EFI_INVALID_PARAMETER - add return value to function comment\r
+{\r
+ CPU_ARCH_PROTOCOL_PRIVATE *Private;\r
+\r
+ //\r
+ // Check for invalid parameter for Spec conformance\r
+ //\r
+ if (Length == 0) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ //\r
+ // Do nothing for Nt32 emulation\r
+ //\r
+ Private = CPU_ARCH_PROTOCOL_PRIVATE_DATA_FROM_THIS (This);\r
+ return EFI_UNSUPPORTED;\r
+}\r
+\r
+\r
+EFI_STATUS\r
+EFIAPI\r
+InitializeCpu (\r
+ IN EFI_HANDLE ImageHandle,\r
+ IN EFI_SYSTEM_TABLE *SystemTable\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+\r
+ Initialize the state information for the CPU Architectural Protocol\r
+\r
+Arguments:\r
+\r
+ ImageHandle of the loaded driver\r
+ Pointer to the System Table\r
+\r
+Returns:\r
+\r
+ Status\r
+\r
+ EFI_SUCCESS - protocol instance can be published \r
+ EFI_OUT_OF_RESOURCES - cannot allocate protocol data structure\r
+ EFI_DEVICE_ERROR - cannot create the thread\r
+\r
+--*/\r
+// TODO: SystemTable - add argument and description to function comment\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_EVENT Event;\r
+ CPU_ARCH_PROTOCOL_PRIVATE *Private;\r
+ VOID *Registration;\r
+\r
+ Status = gBS->AllocatePool (\r
+ EfiBootServicesData,\r
+ sizeof (CPU_ARCH_PROTOCOL_PRIVATE),\r
+ (VOID **)&Private\r
+ );\r
+ ASSERT_EFI_ERROR (Status);\r
+\r
+ Private->Signature = CPU_ARCH_PROT_PRIVATE_SIGNATURE;\r
+ Private->Cpu.FlushDataCache = UnixFlushCpuDataCache;\r
+ Private->Cpu.EnableInterrupt = UnixEnableInterrupt;\r
+ Private->Cpu.DisableInterrupt = UnixDisableInterrupt;\r
+ Private->Cpu.GetInterruptState = UnixGetInterruptState;\r
+ Private->Cpu.Init = UnixInit;\r
+ Private->Cpu.RegisterInterruptHandler = UnixRegisterInterruptHandler;\r
+ Private->Cpu.GetTimerValue = UnixGetTimerValue;\r
+ Private->Cpu.SetMemoryAttributes = UnixSetMemoryAttributes;\r
+\r
+ Private->Cpu.NumberOfTimers = 0;\r
+ Private->Cpu.DmaBufferAlignment = 4;\r
+\r
+ Private->InterruptState = TRUE;\r
+\r
+ Private->CpuIo.Mem.Read = CpuMemoryServiceRead;\r
+ Private->CpuIo.Mem.Write = CpuMemoryServiceWrite;\r
+ Private->CpuIo.Io.Read = CpuIoServiceRead;\r
+ Private->CpuIo.Io.Write = CpuIoServiceWrite;\r
+\r
+\r
+ Private->Handle = NULL;\r
+ Status = gBS->InstallMultipleProtocolInterfaces (\r
+ &Private->Handle,\r
+ &gEfiCpuArchProtocolGuid, &Private->Cpu,\r
+ &gEfiCpuIoProtocolGuid, &Private->CpuIo,\r
+ NULL\r
+ );\r
+ ASSERT_EFI_ERROR (Status);\r
+\r
+ //\r
+ // Install notify function to store processor data to HII database and data hub.\r
+ //\r
+ Status = gBS->CreateEvent (\r
+ EFI_EVENT_NOTIFY_SIGNAL,\r
+ EFI_TPL_CALLBACK,\r
+ UnixIoProtocolNotifyFunction,\r
+ ImageHandle,\r
+ &Event\r
+ );\r
+ ASSERT (!EFI_ERROR (Status));\r
+\r
+ Status = gBS->RegisterProtocolNotify (\r
+ &gEfiUnixIoProtocolGuid,\r
+ Event,\r
+ &Registration\r
+ );\r
+ ASSERT (!EFI_ERROR (Status));\r
+\r
+ //\r
+ // Should be at EFI_D_INFO, but lets us now things are running\r
+ //\r
+ DEBUG ((EFI_D_ERROR, "CPU Architectural Protocol Loaded\n"));\r
+\r
+\r
+ \r
+ return Status;\r
+}\r
+\r
+UINTN\r
+Atoi (\r
+ UINT16 *String\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+ Convert a unicode string to a UINTN\r
+\r
+Arguments:\r
+ String - Unicode string.\r
+\r
+Returns: \r
+ UINTN of the number represented by String. \r
+\r
+--*/\r
+{\r
+ UINTN Number;\r
+ UINT16 *Str;\r
+\r
+ //\r
+ // skip preceeding white space\r
+ //\r
+ Str = String;\r
+ while ((*Str) && (*Str == ' ' || *Str == '"')) {\r
+ Str++;\r
+ }\r
+ //\r
+ // Convert ot a Number\r
+ //\r
+ Number = 0;\r
+ while (*Str != '\0') {\r
+ if ((*Str >= '0') && (*Str <= '9')) {\r
+ Number = (Number * 10) +*Str - '0';\r
+ } else {\r
+ break;\r
+ }\r
+\r
+ Str++;\r
+ }\r
+\r
+ return Number;\r
+}\r
+\r
+VOID\r
+EFIAPI\r
+UnixIoProtocolNotifyFunction (\r
+ IN EFI_EVENT Event,\r
+ IN VOID *Context\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+ This function will log processor version and frequency data to data hub.\r
+\r
+Arguments:\r
+ Event - Event whose notification function is being invoked.\r
+ Context - Pointer to the notification function's context.\r
+\r
+Returns:\r
+ None.\r
+\r
+--*/\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_CPU_DATA_RECORD_BUFFER RecordBuffer;\r
+ EFI_DATA_RECORD_HEADER *Record;\r
+ EFI_SUBCLASS_TYPE1_HEADER *DataHeader;\r
+ UINT32 HeaderSize;\r
+ UINT32 TotalSize;\r
+ UINTN HandleCount;\r
+ UINTN HandleIndex;\r
+ UINT64 MonotonicCount;\r
+ BOOLEAN RecordFound;\r
+ EFI_HANDLE *HandleBuffer;\r
+ EFI_UNIX_IO_PROTOCOL *UnixIo;\r
+ EFI_DATA_HUB_PROTOCOL *DataHub;\r
+ EFI_HII_PROTOCOL *Hii;\r
+ EFI_HII_HANDLE StringHandle;\r
+ EFI_HII_PACKAGES *PackageList;\r
+ STRING_REF Token;\r
+\r
+ DataHub = NULL;\r
+ Token = 0;\r
+ MonotonicCount = 0;\r
+ RecordFound = FALSE;\r
+\r
+ //\r
+ // Retrieve the list of all handles from the handle database\r
+ //\r
+ Status = gBS->LocateHandleBuffer (\r
+ AllHandles,\r
+ &gEfiUnixIoProtocolGuid,\r
+ NULL,\r
+ &HandleCount,\r
+ &HandleBuffer\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ return ;\r
+ }\r
+ //\r
+ // Locate HII protocol\r
+ //\r
+ Status = gBS->LocateProtocol (&gEfiHiiProtocolGuid, NULL, (VOID **)&Hii);\r
+ if (EFI_ERROR (Status)) {\r
+ return ;\r
+ }\r
+ //\r
+ // Locate DataHub protocol.\r
+ //\r
+ Status = gBS->LocateProtocol (&gEfiDataHubProtocolGuid, NULL, (VOID **)&DataHub);\r
+ if (EFI_ERROR (Status)) {\r
+ return ;\r
+ }\r
+ //\r
+ // Initialize data record header\r
+ //\r
+ mCpuDataRecordHeader.Instance = 1;\r
+ HeaderSize = sizeof (EFI_SUBCLASS_TYPE1_HEADER);\r
+\r
+ RecordBuffer.Raw = AllocatePool (HeaderSize + EFI_CPU_DATA_MAXIMUM_LENGTH);\r
+ if (RecordBuffer.Raw == NULL) {\r
+ return ;\r
+ }\r
+\r
+ CopyMem (RecordBuffer.Raw, &mCpuDataRecordHeader, HeaderSize);\r
+\r
+ //\r
+ // Search the Handle array to find the CPU model and speed information\r
+ //\r
+ for (HandleIndex = 0; HandleIndex < HandleCount; HandleIndex++) {\r
+ Status = gBS->OpenProtocol (\r
+ HandleBuffer[HandleIndex],\r
+ &gEfiUnixIoProtocolGuid,\r
+ (VOID **)&UnixIo,\r
+ Context,\r
+ NULL,\r
+ EFI_OPEN_PROTOCOL_GET_PROTOCOL\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ continue;\r
+ }\r
+\r
+ if ((UnixIo->UnixThunk->Signature == EFI_UNIX_THUNK_PROTOCOL_SIGNATURE) &&\r
+ CompareGuid (UnixIo->TypeGuid, &gEfiUnixCPUModelGuid)\r
+ ) {\r
+ //\r
+ // Check if this record has been stored in data hub\r
+ //\r
+ do {\r
+ Status = DataHub->GetNextRecord (DataHub, &MonotonicCount, NULL, &Record);\r
+ if (Record->DataRecordClass == EFI_DATA_RECORD_CLASS_DATA) {\r
+ DataHeader = (EFI_SUBCLASS_TYPE1_HEADER *) (Record + 1);\r
+ if (CompareGuid (&Record->DataRecordGuid, &gEfiProcessorSubClassGuid) &&\r
+ (DataHeader->RecordType == ProcessorVersionRecordType)\r
+ ) {\r
+ RecordFound = TRUE;\r
+ }\r
+ }\r
+ } while (MonotonicCount != 0);\r
+\r
+ if (RecordFound) {\r
+ RecordFound = FALSE;\r
+ continue;\r
+ }\r
+ //\r
+ // Initialize strings to HII database\r
+ //\r
+ PackageList = PreparePackages (1, &gEfiProcessorProducerGuid, STRING_ARRAY_NAME);\r
+\r
+ Status = Hii->NewPack (Hii, PackageList, &StringHandle);\r
+ ASSERT (!EFI_ERROR (Status));\r
+\r
+ gBS->FreePool (PackageList);\r
+\r
+ //\r
+ // Store processor version data record to data hub\r
+ //\r
+ Status = Hii->NewString (Hii, NULL, StringHandle, &Token, UnixIo->EnvString);\r
+ ASSERT (!EFI_ERROR (Status));\r
+\r
+ RecordBuffer.DataRecord->DataRecordHeader.RecordType = ProcessorVersionRecordType;\r
+ RecordBuffer.DataRecord->VariableRecord.ProcessorVersion = Token;\r
+ TotalSize = HeaderSize + sizeof (EFI_PROCESSOR_VERSION_DATA);\r
+\r
+ Status = DataHub->LogData (\r
+ DataHub,\r
+ &gEfiProcessorSubClassGuid,\r
+ &gEfiProcessorProducerGuid,\r
+ EFI_DATA_RECORD_CLASS_DATA,\r
+ RecordBuffer.Raw,\r
+ TotalSize\r
+ );\r
+ }\r
+\r
+ if ((UnixIo->UnixThunk->Signature == EFI_UNIX_THUNK_PROTOCOL_SIGNATURE) &&\r
+ CompareGuid (UnixIo->TypeGuid, &gEfiUnixCPUSpeedGuid)\r
+ ) {\r
+ //\r
+ // Check if this record has been stored in data hub\r
+ //\r
+ do {\r
+ Status = DataHub->GetNextRecord (DataHub, &MonotonicCount, NULL, &Record);\r
+ if (Record->DataRecordClass == EFI_DATA_RECORD_CLASS_DATA) {\r
+ DataHeader = (EFI_SUBCLASS_TYPE1_HEADER *) (Record + 1);\r
+ if (CompareGuid (&Record->DataRecordGuid, &gEfiProcessorSubClassGuid) &&\r
+ (DataHeader->RecordType == ProcessorCoreFrequencyRecordType)\r
+ ) {\r
+ RecordFound = TRUE;\r
+ }\r
+ }\r
+ } while (MonotonicCount != 0);\r
+\r
+ if (RecordFound) {\r
+ RecordFound = FALSE;\r
+ continue;\r
+ }\r
+ //\r
+ // Store CPU frequency data record to data hub\r
+ //\r
+ RecordBuffer.DataRecord->DataRecordHeader.RecordType = ProcessorCoreFrequencyRecordType;\r
+ RecordBuffer.DataRecord->VariableRecord.ProcessorCoreFrequency.Value = (UINT16) Atoi (UnixIo->EnvString);\r
+ RecordBuffer.DataRecord->VariableRecord.ProcessorCoreFrequency.Exponent = 6;\r
+ TotalSize = HeaderSize + sizeof (EFI_PROCESSOR_CORE_FREQUENCY_DATA);\r
+\r
+ Status = DataHub->LogData (\r
+ DataHub,\r
+ &gEfiProcessorSubClassGuid,\r
+ &gEfiProcessorProducerGuid,\r
+ EFI_DATA_RECORD_CLASS_DATA,\r
+ RecordBuffer.Raw,\r
+ TotalSize\r
+ );\r
+\r
+ gBS->FreePool (RecordBuffer.Raw);\r
+ }\r
+\r
+ gBS->CloseProtocol (\r
+ HandleBuffer[HandleIndex],\r
+ &gEfiUnixIoProtocolGuid,\r
+ Context,\r
+ NULL\r
+ );\r
+ }\r
+}\r
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