/** @file Report Status Code Library for DXE Phase. Copyright (c) 2006, Intel Corporation
All rights reserved. This program and the accompanying materials are licensed and made available under the terms and conditions of the BSD License which accompanies this distribution. The full text of the license may be found at http://opensource.org/licenses/bsd-license.php THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. **/ // // Global pointer to the Status Code Protocol // static EFI_STATUS_CODE_PROTOCOL *gStatusCode = NULL; /** Internal worker function that reports a status code through the Status Code Protocol This function checks to see if a Status Code Protocol is present in the handle database. If a Status Code Protocol is not present, then EFI_UNSUPPORTED is returned. If a Status Code Protocol is present, then it is cached in gStatusCode, and the ReportStatusCode() service of the Status Code Protocol is called passing in Type, Value, Instance, CallerId, and Data. The result of this call is returned. @param Type Status code type. @param Value Status code value. @param Instance Status code instance number. @param CallerId Pointer to a GUID that identifies the caller of this function. This is an optional parameter that may be NULL. @param Data Pointer to the extended data buffer. This is an optional parameter that may be NULL. @retval EFI_SUCCESS The status code was reported. @retval EFI_OUT_OF_RESOURCES There were not enough resources to report the status code. @retval EFI_UNSUPPORTED Status Code Protocol is not available. **/ EFI_STATUS InternalReportStatusCode ( IN EFI_STATUS_CODE_TYPE Type, IN EFI_STATUS_CODE_VALUE Value, IN UINT32 Instance, IN EFI_GUID *CallerId OPTIONAL, IN EFI_STATUS_CODE_DATA *Data OPTIONAL ) { EFI_STATUS Status; // // If gStatusCode is NULL, then see if a Status Code Protocol instance is present // in the handle database. // if (gStatusCode == NULL) { Status = gBS->LocateProtocol (&gEfiStatusCodeRuntimeProtocolGuid, NULL, (VOID **)&gStatusCode); if (EFI_ERROR (Status) || gStatusCode == NULL) { return EFI_UNSUPPORTED; } } // // A Status Code Protocol is present in the handle database, so pass in all the // parameters to the ReportStatusCode() service of the Status Code Protocol // return gStatusCode->ReportStatusCode (Type, Value, Instance, CallerId, Data); } /** Computes and returns the size, in bytes, of a device path. @param DevicePath A pointer to a device path. @return The size, in bytes, of DevicePath. **/ UINTN InternalReportStatusCodeDevicePathSize ( IN EFI_DEVICE_PATH_PROTOCOL *DevicePath ) { EFI_DEVICE_PATH_PROTOCOL *Start; if (DevicePath == NULL) { return 0; } // // Search for the end of the device path structure // Start = DevicePath; while (!EfiIsDevicePathEnd (DevicePath)) { DevicePath = EfiNextDevicePathNode (DevicePath); } // // Subtract the start node from the end node and add in the size of the end node // return ((UINTN) DevicePath - (UINTN) Start) + DevicePathNodeLength (DevicePath); } /** Converts a status code to an 8-bit POST code value. Converts the status code specified by CodeType and Value to an 8-bit POST code and returns the 8-bit POST code in PostCode. If CodeType is an EFI_PROGRESS_CODE or CodeType is an EFI_ERROR_CODE, then bits 0..4 of PostCode are set to bits 16..20 of Value, and bits 5..7 of PostCode are set to bits 24..26 of Value., and TRUE is returned. Otherwise, FALSE is returned. If PostCode is NULL, then ASSERT(). @param CodeType The type of status code being converted. @param Value The status code value being converted. @param PostCode A pointer to the 8-bit POST code value to return. @retval TRUE The status code specified by CodeType and Value was converted to an 8-bit POST code and returned in PostCode. @retval FALSE The status code specified by CodeType and Value could not be converted to an 8-bit POST code value. **/ BOOLEAN EFIAPI CodeTypeToPostCode ( IN EFI_STATUS_CODE_TYPE CodeType, IN EFI_STATUS_CODE_VALUE Value, OUT UINT8 *PostCode ) { // // If PostCode is NULL, then ASSERT() // ASSERT (PostCode != NULL); // // Convert Value to an 8 bit post code // if (((CodeType & EFI_STATUS_CODE_TYPE_MASK) == EFI_PROGRESS_CODE) || ((CodeType & EFI_STATUS_CODE_TYPE_MASK) == EFI_ERROR_CODE) ) { *PostCode = (UINT8) (((Value & EFI_STATUS_CODE_CLASS_MASK) >> 24) << 5); *PostCode |= (UINT8) (((Value & EFI_STATUS_CODE_SUBCLASS_MASK) >> 16) & 0x1f); return TRUE; } return FALSE; } /** Extracts ASSERT() information from a status code structure. Converts the status code specified by CodeType, Value, and Data to the ASSERT() arguments specified by Filename, Description, and LineNumber. If CodeType is an EFI_ERROR_CODE, and CodeType has a severity of EFI_ERROR_UNRECOVERED, and Value has an operation mask of EFI_SW_EC_ILLEGAL_SOFTWARE_STATE, extract Filename, Description, and LineNumber from the optional data area of the status code buffer specified by Data. The optional data area of Data contains a Null-terminated ASCII string for the FileName, followed by a Null-terminated ASCII string for the Description, followed by a 32-bit LineNumber. If the ASSERT() information could be extracted from Data, then return TRUE. Otherwise, FALSE is returned. If Data is NULL, then ASSERT(). If Filename is NULL, then ASSERT(). If Description is NULL, then ASSERT(). If LineNumber is NULL, then ASSERT(). @param CodeType The type of status code being converted. @param Value The status code value being converted. @param Data Pointer to status code data buffer. @param Filename Pointer to the source file name that generated the ASSERT(). @param Description Pointer to the description of the ASSERT(). @param LineNumber Pointer to source line number that generated the ASSERT(). @retval TRUE The status code specified by CodeType, Value, and Data was converted ASSERT() arguments specified by Filename, Description, and LineNumber. @retval FALSE The status code specified by CodeType, Value, and Data could not be converted to ASSERT() arguments. **/ BOOLEAN EFIAPI ReportStatusCodeExtractAssertInfo ( IN EFI_STATUS_CODE_TYPE CodeType, IN EFI_STATUS_CODE_VALUE Value, IN EFI_STATUS_CODE_DATA *Data, OUT CHAR8 **Filename, OUT CHAR8 **Description, OUT UINT32 *LineNumber ) { EFI_DEBUG_ASSERT_DATA *AssertData; ASSERT (Data != NULL); ASSERT (Filename != NULL); ASSERT (Description != NULL); ASSERT (LineNumber != NULL); if (((CodeType & EFI_STATUS_CODE_TYPE_MASK) == EFI_ERROR_CODE) && ((CodeType & EFI_STATUS_CODE_SEVERITY_MASK) == EFI_ERROR_UNRECOVERED) && ((Value & EFI_STATUS_CODE_OPERATION_MASK) == EFI_SW_EC_ILLEGAL_SOFTWARE_STATE)) { AssertData = (EFI_DEBUG_ASSERT_DATA *)(Data + 1); *Filename = (CHAR8 *)(AssertData + 1); *Description = *Filename + AsciiStrLen (*Filename) + 1; *LineNumber = AssertData->LineNumber; return TRUE; } return FALSE; } /** Extracts DEBUG() information from a status code structure. Converts the status code specified by Data to the DEBUG() arguments specified by ErrorLevel, Marker, and Format. If type GUID in Data is EFI_STATUS_CODE_DATA_TYPE_DEBUG_GUID, then extract ErrorLevel, Marker, and Format from the optional data area of the status code buffer specified by Data. The optional data area of Data contains a 32-bit ErrorLevel followed by Marker which is 12 UINTN parameters, followed by a Null-terminated ASCII string for the Format. If the DEBUG() information could be extracted from Data, then return TRUE. Otherwise, FALSE is returned. If Data is NULL, then ASSERT(). If ErrorLevel is NULL, then ASSERT(). If Marker is NULL, then ASSERT(). If Format is NULL, then ASSERT(). @param Data Pointer to status code data buffer. @param ErrorLevel Pointer to error level mask for a debug message. @param Marker Pointer to the variable argument list associated with Format. @param Format Pointer to a Null-terminated ASCII format string of a debug message. @retval TRUE The status code specified by Data was converted DEBUG() arguments specified by ErrorLevel, Marker, and Format. @retval FALSE The status code specified by Data could not be converted to DEBUG() arguments. **/ BOOLEAN EFIAPI ReportStatusCodeExtractDebugInfo ( IN EFI_STATUS_CODE_DATA *Data, OUT UINT32 *ErrorLevel, OUT VA_LIST *Marker, OUT CHAR8 **Format ) { EFI_DEBUG_INFO *DebugInfo; ASSERT (Data != NULL); ASSERT (ErrorLevel != NULL); ASSERT (Marker != NULL); ASSERT (Format != NULL); // // If the GUID type is not EFI_STATUS_CODE_DATA_TYPE_DEBUG_GUID then return FALSE // if (!CompareGuid (&Data->Type, &gEfiStatusCodeDataTypeDebugGuid)) { return FALSE; } // // Retrieve the debug information from the status code record // DebugInfo = (EFI_DEBUG_INFO *)(Data + 1); *ErrorLevel = DebugInfo->ErrorLevel; // // The first 12 * UINTN bytes of the string are really an // argument stack to support varargs on the Format string. // *Marker = (VA_LIST) (DebugInfo + 1); *Format = (CHAR8 *)(((UINT64 *)*Marker) + 12); return TRUE; } /** Reports a status code. Reports the status code specified by the parameters Type and Value. Status code also require an instance, caller ID, and extended data. This function passed in a zero instance, NULL extended data, and a caller ID of gEfiCallerIdGuid, which is the GUID for the module. ReportStatusCode()must actively prevent recusrsion. If ReportStatusCode() is called while processing another any other Report Status Code Library function, then ReportStatusCode() must return immediately. @param Type Status code type. @param Value Status code value. @retval EFI_SUCCESS The status code was reported. @retval EFI_DEVICE_ERROR There status code could not be reported due to a device error. @retval EFI_UNSUPPORTED Report status code is not supported **/ EFI_STATUS EFIAPI ReportStatusCode ( IN EFI_STATUS_CODE_TYPE Type, IN EFI_STATUS_CODE_VALUE Value ) { return InternalReportStatusCode (Type, Value, 0, &gEfiCallerIdGuid, NULL); } /** Reports a status code with a Device Path Protocol as the extended data. Allocates and fills in the extended data section of a status code with the Device Path Protocol specified by DevicePath. This function is responsible for allocating a buffer large enough for the standard header and the device path. The standard header is filled in with a GUID of gEfiStatusCodeSpecificDataGuid. The status code is reported with a zero instance and a caller ID of gEfiCallerIdGuid. ReportStatusCodeWithDevicePath()must actively prevent recursion. If ReportStatusCodeWithDevicePath() is called while processing another any other Report Status Code Library function, then ReportStatusCodeWithDevicePath() must return EFI_DEVICE_ERROR immediately. If DevicePath is NULL, then ASSERT(). @param Type Status code type. @param Value Status code value. @param DevicePath Pointer to the Device Path Protocol to be reported. @retval EFI_SUCCESS The status code was reported with the extended data specified by DevicePath. @retval EFI_OUT_OF_RESOURCES There were not enough resources to allocate the extended data section. @retval EFI_UNSUPPORTED Report status code is not supported **/ EFI_STATUS EFIAPI ReportStatusCodeWithDevicePath ( IN EFI_STATUS_CODE_TYPE Type, IN EFI_STATUS_CODE_VALUE Value, IN EFI_DEVICE_PATH_PROTOCOL *DevicePath ) { ASSERT (DevicePath != NULL); return ReportStatusCodeWithExtendedData ( Type, Value, (VOID *)DevicePath, InternalReportStatusCodeDevicePathSize (DevicePath) ); } /** Reports a status code with an extended data buffer. Allocates and fills in the extended data section of a status code with the extended data specified by ExtendedData and ExtendedDataSize. ExtendedData is assumed to be one of the data structures specified in Related Definitions. These data structure do not have the standard header, so this function is responsible for allocating a buffer large enough for the standard header and the extended data passed into this function. The standard header is filled in with a GUID of gEfiStatusCodeSpecificDataGuid. The status code is reported with a zero instance and a caller ID of gEfiCallerIdGuid. ReportStatusCodeWithExtendedData()must actively prevent recursion. If ReportStatusCodeWithExtendedData() is called while processing another any other Report Status Code Library function, then ReportStatusCodeWithExtendedData() must return EFI_DEVICE_ERROR immediately. If ExtendedData is NULL, then ASSERT(). If ExtendedDataSize is 0, then ASSERT(). @param Type Status code type. @param Value Status code value. @param ExtendedData Pointer to the extended data buffer to be reported. @param ExtendedDataSize The size, in bytes, of the extended data buffer to be reported. @retval EFI_SUCCESS The status code was reported with the extended data specified by ExtendedData and ExtendedDataSize. @retval EFI_OUT_OF_RESOURCES There were not enough resources to allocate the extended data section. @retval EFI_UNSUPPORTED Report status code is not supported **/ EFI_STATUS EFIAPI ReportStatusCodeWithExtendedData ( IN EFI_STATUS_CODE_TYPE Type, IN EFI_STATUS_CODE_VALUE Value, IN VOID *ExtendedData, IN UINTN ExtendedDataSize ) { ASSERT (ExtendedData != NULL); ASSERT (ExtendedDataSize != 0); return ReportStatusCodeEx ( Type, Value, 0, NULL, NULL, ExtendedData, ExtendedDataSize ); } /** Reports a status code with full parameters. The function reports a status code. If ExtendedData is NULL and ExtendedDataSize is 0, then an extended data buffer is not reported. If ExtendedData is not NULL and ExtendedDataSize is not 0, then an extended data buffer is allocated. ExtendedData is assumed not have the standard status code header, so this function is responsible for allocating a buffer large enough for the standard header and the extended data passed into this function. The standard header is filled in with a GUID specified by ExtendedDataGuid. If ExtendedDataGuid is NULL, then a GUID of gEfiStatusCodeSpecificDatauid is used. The status code is reported with an instance specified by Instance and a caller ID specified by CallerId. If CallerId is NULL, then a caller ID of gEfiCallerIdGuid is used. ReportStatusCodeEx()must actively prevent recursion. If ReportStatusCodeEx() is called while processing another any other Report Status Code Library function, then ReportStatusCodeEx() must return EFI_DEVICE_ERROR immediately. If ExtendedData is NULL and ExtendedDataSize is not zero, then ASSERT(). If ExtendedData is not NULL and ExtendedDataSize is zero, then ASSERT(). @param Type Status code type. @param Value Status code value. @param Instance Status code instance number. @param CallerId Pointer to a GUID that identifies the caller of this function. If this parameter is NULL, then a caller ID of gEfiCallerIdGuid is used. @param ExtendedDataGuid Pointer to the GUID for the extended data buffer. If this parameter is NULL, then a the status code standard header is filled in with gEfiStatusCodeSpecificDataGuid. @param ExtendedData Pointer to the extended data buffer. This is an optional parameter that may be NULL. @param ExtendedDataSize The size, in bytes, of the extended data buffer. @retval EFI_SUCCESS The status code was reported. @retval EFI_OUT_OF_RESOURCES There were not enough resources to allocate the extended data section if it was specified. @retval EFI_UNSUPPORTED Report status code is not supported **/ EFI_STATUS EFIAPI ReportStatusCodeEx ( IN EFI_STATUS_CODE_TYPE Type, IN EFI_STATUS_CODE_VALUE Value, IN UINT32 Instance, IN EFI_GUID *CallerId OPTIONAL, IN EFI_GUID *ExtendedDataGuid OPTIONAL, IN VOID *ExtendedData OPTIONAL, IN UINTN ExtendedDataSize ) { EFI_STATUS Status; EFI_STATUS_CODE_DATA *StatusCodeData; ASSERT (!((ExtendedData == NULL) && (ExtendedDataSize != 0))); ASSERT (!((ExtendedData != NULL) && (ExtendedDataSize == 0))); // // Allocate space for the Status Code Header and its buffer // StatusCodeData = NULL; gBS->AllocatePool (EfiBootServicesData, sizeof (EFI_STATUS_CODE_DATA) + ExtendedDataSize, (VOID **)&StatusCodeData); if (StatusCodeData == NULL) { return EFI_OUT_OF_RESOURCES; } // // Fill in the extended data header // StatusCodeData->HeaderSize = sizeof (EFI_STATUS_CODE_DATA); StatusCodeData->Size = (UINT16)ExtendedDataSize; if (ExtendedDataGuid == NULL) { ExtendedDataGuid = &gEfiStatusCodeSpecificDataGuid; } CopyGuid (&StatusCodeData->Type, ExtendedDataGuid); // // Fill in the extended data buffer // CopyMem (StatusCodeData + 1, ExtendedData, ExtendedDataSize); // // Report the status code // if (CallerId == NULL) { CallerId = &gEfiCallerIdGuid; } Status = InternalReportStatusCode (Type, Value, Instance, CallerId, StatusCodeData); // // Free the allocated buffer // gBS->FreePool (StatusCodeData); return Status; } /** Returns TRUE if status codes of type EFI_PROGRESS_CODE are enabled This function returns TRUE if the REPORT_STATUS_CODE_PROPERTY_PROGRESS_CODE_ENABLED bit of PcdReportStatusCodeProperyMask is set. Otherwise FALSE is returned. @retval TRUE The REPORT_STATUS_CODE_PROPERTY_PROGRESS_CODE_ENABLED bit of PcdReportStatusCodeProperyMask is set. @retval FALSE The REPORT_STATUS_CODE_PROPERTY_PROGRESS_CODE_ENABLED bit of PcdReportStatusCodeProperyMask is clear. **/ BOOLEAN EFIAPI ReportProgressCodeEnabled ( VOID ) { return ((PcdGet8(PcdReportStatusCodePropertyMask) & REPORT_STATUS_CODE_PROPERTY_PROGRESS_CODE_ENABLED) != 0); } /** Returns TRUE if status codes of type EFI_ERROR_CODE are enabled This function returns TRUE if the REPORT_STATUS_CODE_PROPERTY_ERROR_CODE_ENABLED bit of PcdReportStatusCodeProperyMask is set. Otherwise FALSE is returned. @retval TRUE The REPORT_STATUS_CODE_PROPERTY_ERROR_CODE_ENABLED bit of PcdReportStatusCodeProperyMask is set. @retval FALSE The REPORT_STATUS_CODE_PROPERTY_ERROR_CODE_ENABLED bit of PcdReportStatusCodeProperyMask is clear. **/ BOOLEAN EFIAPI ReportErrorCodeEnabled ( VOID ) { return ((PcdGet8(PcdReportStatusCodePropertyMask) & REPORT_STATUS_CODE_PROPERTY_ERROR_CODE_ENABLED) != 0); } /** Returns TRUE if status codes of type EFI_DEBUG_CODE are enabled This function returns TRUE if the REPORT_STATUS_CODE_PROPERTY_DEBUG_CODE_ENABLED bit of PcdReportStatusCodeProperyMask is set. Otherwise FALSE is returned. @retval TRUE The REPORT_STATUS_CODE_PROPERTY_DEBUG_CODE_ENABLED bit of PcdReportStatusCodeProperyMask is set. @retval FALSE The REPORT_STATUS_CODE_PROPERTY_DEBUG_CODE_ENABLED bit of PcdReportStatusCodeProperyMask is clear. **/ BOOLEAN EFIAPI ReportDebugCodeEnabled ( VOID ) { return ((PcdGet8(PcdReportStatusCodePropertyMask) & REPORT_STATUS_CODE_PROPERTY_DEBUG_CODE_ENABLED) != 0); }