Class CIM_BIOSService
extends CIM_Service

A class derived from Service that provides the controls to manage the system BIOS configuration of a managed computer system or device. This service exposes functionality to retrieve BIOS configuration data or attributes, set BIOS attribute values, and restore a default configuration of attribute values for a given computer system.

Table of Contents
Hierarchy
Direct Known Subclasses
Class Qualifiers
Class Properties
Class Methods

Class Hierarchy

Direct Known Subclasses

Class Qualifiers

Name	Data Type	Value
Description	string	A class derived from Service that provides the controls to manage the system BIOS configuration of a managed computer system or device. This service exposes functionality to retrieve BIOS configuration data or attributes, set BIOS attribute values, and restore a default configuration of attribute values for a given computer system.
UMLPackagePath	string	CIM::System::BIOS
Version	string	2.22.0

Class Properties

Inherited Properties

Name	Data Type	Class Origin
Caption	string	CIM_ManagedElement
CommunicationStatus	uint16	CIM_ManagedSystemElement
CreationClassName	string	CIM_Service
Description	string	CIM_ManagedElement
DetailedStatus	uint16	CIM_ManagedSystemElement
ElementName	string	CIM_ManagedElement
EnabledDefault	uint16	CIM_EnabledLogicalElement
EnabledState	uint16	CIM_EnabledLogicalElement
Generation	uint64	CIM_ManagedElement
HealthState	uint16	CIM_ManagedSystemElement
InstallDate	datetime	CIM_ManagedSystemElement
InstanceID	string	CIM_ManagedElement
LoSID	string	CIM_Service
LoSOrgID	string	CIM_Service
Name	string	CIM_Service
OperatingStatus	uint16	CIM_ManagedSystemElement
OtherEnabledState	string	CIM_EnabledLogicalElement
PrimaryOwnerContact	string	CIM_Service
PrimaryOwnerName	string	CIM_Service
PrimaryStatus	uint16	CIM_ManagedSystemElement
RequestedState	uint16	CIM_EnabledLogicalElement
Started	boolean	CIM_Service
StartMode	string	CIM_Service
Status	string	CIM_ManagedSystemElement
SystemCreationClassName	string	CIM_Service
SystemName	string	CIM_Service
TimeOfLastStateChange	datetime	CIM_EnabledLogicalElement
TransitioningToState	uint16	CIM_EnabledLogicalElement
AvailableRequestedStates	uint16[]	CIM_EnabledLogicalElement
OperationalStatus	uint16[]	CIM_ManagedSystemElement
StatusDescriptions	string[]	CIM_ManagedSystemElement

Class Methods

Local Class Methods

SetBIOSAttribute (uint32)

Method Qualifiers (SetBIOSAttribute)

Name	Data Type	Value
Description	string	This method is called to modify instances of BIOSAttribute associated with this BIOSService.If this method is not supported by the implementation, 1 (Not Supported) shall be returned. If the method is supported, but has not completed due to an unspecified error, 2 (Error) shall be returned. If the method is supported and has completed successfully, 0 (Completed with No Error) shall be returned. The method may return an instance of CIM_Error.
ValueMap	string	0, 1, 2, .., 32768..65535
Values	string	Completed with No Error, Not Supported, Error, DMTF Reserved, Vendor Reserved

Method Parameters (SetBIOSAttribute)

Name	Type	Qualifiers
Name	Type	Name	Data Type	Value
AttributeName	string
		Description	string	A reference to a BIOSAttribute specified by AttributeName of the BIOSAttribute to be modified.
		IN	boolean	true
		Required	boolean	true
AuthorizationToken	string
		Description	string	When required, a token to modify BIOSAttribute values for this computer system. This is usually the BIOS administrator password. If this is a password, the PasswordEncoding parameter shall be used to denote the format of the password string. For example: the CIM_SharedCredential subclass may be utilized. In that case, the CIM_SharedCredential.Secret might be required and if is not specified this method would return 6 Invalid Parameter. The CIM_SharedCredential.Algorithm property might also be specified based on the property CIM_BIOSServiceCapabilities.SupportedPasswordAlgorithms.
		EmbeddedInstance	string	CIM_Credential
		IN	boolean	true
PasswordEncoding	uint32
		Description	string	PasswordEncoding specifies encoding tag used to denote the format the password string is being passed into the BIOS. "kbd" denotes a string in hexadecimal format containing keyboard scan code input. An example of a password structured in this format would be "321539191E1F1F11181320", which is the representation of "my password" in US English keyboard scan codes. "ascii" denotes clear text that shall comply with the ASCII character set. Character encodings from " " (decimal 32) to "~" (decimal 126) are supported. An example would be "my password"."pin" denotes that only numeric input in ASCII text is allowed for the password instance. An example would be "1234".
		IN	boolean	true
		ValueMap	string	2, 3, 4, 5, .., 32768..65535
		Values	string	ascii, kbd, pin, UTF16, DMTF Reserved, Vendor Reserved
SetResult	uint32
		Description	string	Invoking the SetBIOSAttribute may result in a set to CurrentValue property or the PendingValue property. SetResult returns the result of invoking the SetBIOSAttribute method when the method return code is 0 completed with no error.
		IN	boolean	false
		OUT	boolean	true
		ValueMap	string	2, 3, .., 32768..65535
		Values	string	Set CurrentValue property, Set PendingValue property, DMTF Reserved, Vendor Reserved
AttributeValue	string[]
		Description	string	A new value to assign to the specified BIOSAttribute. A value of NULL indicates the factory default value for the BIOSAttribute is requested. If this value is valid, it will be applied to the CurrentValue or PendingValue property of the specified BIOSAttribute depending on the system BIOS implementation and any requirements for a system restart.
		IN	boolean	true
		Required	boolean	true
TargetBIOS	REF CIM_BIOSElement
		Description	string	If supplied, TargetBIOS references the scoping instance of CIM_BIOSElement in which the operation is targeted. If TargetBIOS is not supplied, the target of the operation shall be the current instance of CIM_BIOSElement associated to the CIM_ComputerSystem hosting the service.
		IN	boolean	true

SetBIOSAttributeEmbeddedInstance (uint32)

Method Qualifiers (SetBIOSAttributeEmbeddedInstance)

Name	Data Type	Value
Description	string	This method is called to modify instances of BIOSAttribute associated with this BIOSService using an embedded instance If this method is not supported by the implementation, 1 (Not Supported) shall be returned. If the method is supported, but has not completed due to an unspecified error, 2 (Error) shall be returned. If the method is supported and has completed successfully, 0 (Completed with No Error) shall be returned. The method may return an instance of CIM_Error.
ValueMap	string	0, 1, 2, .., 32768..65535
Values	string	Completed with No Error, Not Supported, Error, DMTF Reserved, Vendor Reserved

Method Parameters (SetBIOSAttributeEmbeddedInstance)

Name	Type	Qualifiers
Name	Type	Name	Data Type	Value
AttributeConfig	string
		Description	string	AttributeConfig is the input required to modify the value of a BIOSAttribute. The CIM_BIOSAttribute.AttributeName and the CIM_BIOSAttribute.CurrentValue properties are Required for this operation. If both properties are not specified the service shall return 6 Invalid Parameter.
		EmbeddedInstance	string	CIM_BIOSAttribute
		IN	boolean	true
		Required	boolean	true
AuthorizationToken	string
		Description	string	When required, a token to modify BIOSAttribute values for this computer system. This is usually the BIOS administrator password. If this is a password, the PasswordEncoding parameter shall be used to denote the format of the password string. For example: the CIM_SharedCredential subclass may be utilized. In that case, the CIM_SharedCredential.Secret might be required and if is not specified this method would return 6 Invalid Parameter. The CIM_SharedCredential.Algorithm property might also be specified based on the property CIM_BIOSServiceCapabilities.SupportedPasswordAlgorithms.
		EmbeddedInstance	string	CIM_Credential
		IN	boolean	true
PasswordEncoding	uint32
		Description	string	PasswordEncoding specifies encoding tag used to denote the format the password string is being passed into the BIOS. This property is applicable if the AuthorizationToken parameter includes a password. "kbd" denotes a string in hexadecimal format containing keyboard scan code input. An example of a password structured in this format would be "321539191E1F1F11181320", which is the representation of "my password" in US English keyboard scan codes. "ascii" denotes clear text that shall comply with the ASCII character set. Character encodings from " " (decimal 32) to "~" (decimal 126) are supported. An example would be "my password"."pin" denotes that only numeric input in ASCII text is allowed for the password instance. An example would be "1234".
		IN	boolean	true
		ValueMap	string	2, 3, 4, 5, .., 32768..65535
		Values	string	ascii, kbd, pin, UTF16, DMTF Reserved, Vendor Reserved
SetResult	uint32
		Description	string	Invoking the SetBIOSAttributeEmbeddedInstance may result in a set to CurrentValue property or the PendingValue property. SetResult returns the result of invoking the SetBIOSAttributeEmbeddedInstance method when the method return code is 0 completed with no error.
		IN	boolean	false
		OUT	boolean	true
		ValueMap	string	2, 3, .., 32768..65535
		Values	string	Set CurrentValue property, Set PendingValue property, DMTF Reserved, Vendor Reserved
TargetBIOS	REF CIM_BIOSElement
		Description	string	If supplied, TargetBIOS references the scoping instance of CIM_BIOSElement in which the operation is targeted. If TargetBIOS is not supplied, the target of the operation shall be the current instance of CIM_BIOSElement associated to the CIM_ComputerSystem hosting the service.
		IN	boolean	true

ReadRawBIOSData (uint32)

Method Qualifiers (ReadRawBIOSData)

Name	Data Type	Value
Description	string	This method provides the ability to perform raw reads of BIOS configuration storage area. The method will return the lesser of the number of bytes specified by the NumberOfBytes parameter and the actual number of bytes available between Offset and the end of the BIOS area, starting at specified by the Offset parameter arereturned in the Data parameter.
ValueMap	string	0, 1, 2, .., 65536..4294967295
Values	string	Completed with No Error, Not Supported, Unknown/Unspecified Error, DMTF Reserved, Vendor Reserved

Method Parameters (ReadRawBIOSData)

Name	Type	Qualifiers
Name	Type	Name	Data Type	Value
NumberOfBytes	uint32
		Description	string	On input, specifies the number of bytes to read. On output, specifies the number of bytes read.
		IN	boolean	true
		OUT	boolean	true
		Required	boolean	true
Offset	uint32
		Description	string	Specifies initial offset to start reading from.
		IN	boolean	true
		Required	boolean	true
Data	uint8[]
		Description	string	Buffer to contain read data.
		IN	boolean	false
		OctetString	boolean	true
		OUT	boolean	true
TargetBIOS	REF CIM_BIOSElement
		Description	string	If supplied, TargetBIOS references the scoping instance of CIM_BIOSElement in which the operation is targeted. If TargetBIOS is not supplied, the target of the operation shall be the current instance of CIM_BIOSElement associated to the CIM_ComputerSystem hosting the service.
		IN	boolean	true

WriteRawBIOSData (uint32)

Method Qualifiers (WriteRawBIOSData)

Name	Data Type	Value
Description	string	This method provides the ability to perform raw writes of BIOS configuration storage area. The number of bytes specified by the Length parameter will be written from the Data parameter specified by the Offset parameter. If the number of bytes to write as indicated by the NumberOfBytes parameter exceeds the number of bytes from Offset to the end of the BIOS area, the method shall return 2.
ValueMap	string	0, 1, 2, .., 65536..4294967295
Values	string	Completed with No Error, Not Supported, Unknown/Unspecified Error, DMTF Reserved, Vendor Reserved

Method Parameters (WriteRawBIOSData)

Name	Type	Qualifiers
Name	Type	Name	Data Type	Value
AuthorizationToken	string
		Description	string	A token required to modify BIOSAttribute values for this computer system. This is usually the BIOS administrator password. For example: the CIM_SharedCredential subclass may be utilized. In that case, the CIM_SharedCredential.Secret might be required and if is not specified this method would return 6 Invalid Parameter. The CIM_SharedCredential.Algorithm property might also be specified based on the propertyCIM_BIOSServiceCapabilities.SupportedPasswordAlgorithms.
		EmbeddedInstance	string	CIM_Credential
		IN	boolean	true
NumberOfBytes	uint32
		Description	string	On input, specifies the number of bytes of data to write. On output, specifies the number of bytes written.
		IN	boolean	true
		OUT	boolean	true
		Required	boolean	true
Offset	uint32
		Description	string	Specifies initial offset to start reading from.
		IN	boolean	true
		Required	boolean	true
PasswordEncoding	uint32
		Description	string	PasswordEncoding specifies encoding tag used to denote the format the password string is being passed into the BIOS. This property is applicable if the AuthorizationToken parameter includes a password. "kbd" denotes a string in hexadecimal format containing keyboard scan code input. An example of a password structured in this format would be "321539191E1F1F11181320", which is the representation of "my password" in US English keyboard scan codes. "ascii" denotes clear text that shall comply with the ASCII character set. Character encodings from " " (decimal 32) to "~" (decimal 126) are supported. An example would be "my password"."pin" denotes that only numeric input in ASCII text is allowed for the password instance. An example would be "1234".
		IN	boolean	true
		ValueMap	string	2, 3, 4, 5, .., 32768..65535
		Values	string	ascii, kbd, pin, UTF16, DMTF Reserved, Vendor Reserved
Data	uint8[]
		Description	string	Buffer containing data to write.
		IN	boolean	true
		OctetString	boolean	true
TargetBIOS	REF CIM_BIOSElement
		Description	string	If supplied, TargetBIOS references the scoping instance of CIM_BIOSElement in which the operation is targeted. If TargetBIOS is not supplied, the target of the operation shall be the current instance of CIM_BIOSElement associated to the CIM_ComputerSystem hosting the service.
		IN	boolean	true

SetBIOSAttributes (uint32)

Method Qualifiers (SetBIOSAttributes)

Name	Data Type	Value
Description	string	This method is called to modify a group of BIOSAttribute instances associated with this BIOSService. If the method is not supported by the implementation, 1 (Not Supported) shall be returned. If the method is supported, but has not completed due to an unspecified error, 2 (Error) shall be returned. If the method is supported and has completed successfully, 0 (Completed with No Error) shall be returned; SetResult[] should be inspected to determine if individual BIOS Attribute values have been set. The method may return an instance of CIM_Error.
ValueMap	string	0, 1, 2, .., 32768..65535
Values	string	Completed with No Error, Not Supported, Error, DMTF Reserved, Vendor Reserved

Method Parameters (SetBIOSAttributes)

Name	Type	Qualifiers
Name	Type	Name	Data Type	Value
AuthorizationToken	string
		Description	string	When required, a token to modify BIOSAttribute values for this computer system. This is usually the BIOS administrator password. If this is a password, the PasswordEncoding parameter shall be used to denote the format of the password string. For example: the CIM_SharedCredential subclass may be utilized. In that case, the CIM_SharedCredential.Secret might be required and if is not specified this method would return 6 Invalid Parameter. The CIM_SharedCredential.Algorithm property might also be specified based on the propertyCIM_BIOSServiceCapabilities.SupportedPasswordAlgorithms.
		EmbeddedInstance	string	CIM_Credential
		IN	boolean	true
CollectionElementName	string
		Description	string	If supplied, the ConcreteCollection containing the BIOS Attributes to be modified, as specified by the ConcreteCollection.ElementName property. The value of ConcreteCollection.ElementName supplied for this parameter must be unique within the scope of the instantiating Namespace; if the value is not unique, this parameter shall not be supplied. If BIOS Attributes represented by the AttributeName[] parameter are not members of this collection, the SetResult parameter that corresponds to these BIOS Attributes shall return 5 (No Attempt to Set Value due to Error). If CollectionElementName is not specified, the BIOS Attributes represented by the AttributeName[] parameter can be members of any collection or associated with no collection at all.
		IN	boolean	true
PasswordEncoding	uint32
		Description	string	PasswordEncoding specifies encoding tag used to denote the format the password string is being passed into the BIOS. "kbd" denotes a string in hexadecimal format containing keyboard scan code input. An example of a password structured in this format would be "321539191E1F1F11181320", which is the representation of "my password" in US English keyboard scan codes. "ascii" denotes clear text that shall comply with the ASCII character set. Character encodings from " " (decimal 32) to "~" (decimal 126) are supported. An example would be "my password"."pin" denotes that only numeric input in ASCII text is allowed for the password instance. An example would be "1234".
		IN	boolean	true
		ValueMap	string	2, 3, 4, 5, .., 32768..65535
		Values	string	ascii, kbd, pin, UTF16, DMTF Reserved, Vendor Reserved
AttributeName	string[]
		ArrayType	string	Indexed
		Description	string	The BIOS Attribute names representing the BIOS Attributes to be modified, as specified by BIOSAttribute.AttributeName properties. The specified BIOS Attributes must already exist. The values of BIOSAttribute.AttributeName supplied for this parameter must be unique within the scope of the instantiating Namespace. The BIOS Attribute name members of this array must correspond with array members of the values represented by the AttributeValue[] parameter. If more than one value is specified for a particular BIOS Attribute, this parameter shall contain multiple identical array entries describing the BIOS Attribute name that corresponds with each respective BIOS Attribute value specified by the AttributeValue[] parameter.
		IN	boolean	true
		ModelCorrespondence	string	CIM_BIOSAttribute.AttributeName, CIM_BIOSService.SetBIOSAttributes.AttributeValue
		Required	boolean	true
AttributeValue	string[]
		ArrayType	string	Indexed
		Description	string	New values to assign to the BIOS Attributes specified in the AttributeName[] parameter. The BIOS Attribute value members of this array must correspond with the array members of the names represented by the AttributeName[] parameter. If more than one value is specified for a particular BIOS Attribute, this parameter shall contain an entry for each BIOS Attribute value. A value of NULL indicates the factory default values for the BIOSAttribute is requested. If this value is valid, it will be applied to the CurrentValue or PendingValue property of the specified BIOSAttribute depending on the system BIOS implementation and any requirements for a system restart. The result of applying the values are described in the corresponding array entries of the SetResult[] parameter.
		IN	boolean	true
		ModelCorrespondence	string	CIM_BIOSAttribute.CurrentValue, CIM_BIOSAttribute.PendingValue, CIM_BIOSService.SetBIOSAttributes.AttributeName, CIM_BIOSService.SetBIOSAttributes.SetResult
		Required	boolean	true
SetResult	uint32[]
		ArrayType	string	Indexed
		Description	string	Invoking SetBIOSAttributes may result in new values for BIOS Attributes specified in the AttributeName[] parameter. SetResult returns the results of invoking this method for each specified attribute value. Each array element of SetResult contains the result of setting the new value that corresponds with each respective BIOS Attribute value specified by the AttributeValue[] parameter. If the BIOSAttribute.CurrentValue property is set to the new value, 2 (Set CurrentValue Property) shall be returned. If the BIOSAttribute.PendingValue property is set to the new value, 3 (Set PendingValue Property) shall be returned. If an unspecified error occurred while setting the value, 4 (Error Setting Value) shall be returned. If there was no attempt to set the value due to a prior unspecified error, 5 (No Attempt to Set Value due to Error) shall be returned. If a previously set value was rolled-back to its original value due to a prior unspecified error, 6 (Value Rolled-Back) shall be returned.
		IN	boolean	false
		ModelCorrespondence	string	CIM_BIOSAttribute.CurrentValue, CIM_BIOSAttribute.PendingValue, CIM_BIOSService.SetBIOSAttributes.AttributeName, CIM_BIOSService.SetBIOSAttributes.AttributeValue
		OUT	boolean	true
		ValueMap	string	2, 3, 4, 5, 6, .., 32768..65535
		Values	string	Set CurrentValue Property, Set PendingValue Property, Error Setting Value, No Attempt to Set Value due to Error, Value Rolled-Back, DMTF Reserved, Vendor Reserved
TargetBIOS	REF CIM_BIOSElement
		Description	string	If supplied, TargetBIOS references the scoping instance of CIM_BIOSElement in which the operation is targeted. If TargetBIOS is not supplied, the target of the operation shall be the current instance of CIM_BIOSElement associated to the CIM_ComputerSystem hosting the service.
		IN	boolean	true

Inherited Class Methods

Name	Return Type	Class Origin
ChangeAffectedElementsAssignedSequence	uint32	CIM_Service
RequestStateChange	uint32	CIM_EnabledLogicalElement
StartService	uint32	CIM_Service
StopService	uint32	CIM_Service

Class CIM_BIOSServiceextends CIM_Service

Table of Contents Hierarchy Direct Known Subclasses Class Qualifiers Class Properties Class Methods