# Data Object - VirtualPCIPassthroughDeviceBackingInfo(vim.vm.device.VirtualPCIPassthrough.DeviceBackingInfo)

Property of
  VirtualSriovEthernetCardSriovBackingInfo
Extends
  VirtualDeviceDeviceBackingInfo
Since
  vSphere API 4.0

## Data Object Description

The VirtualPCIPassthrough.DeviceBackingInfo data object type contains information about the backing that maps the virtual device onto a physical device.

Properties

Name | Type | Description
--- | --- | ---
deviceId | xsd:string | The device ID of this PCI. You must use the device ID retrieved from the vSphere host (HostPciDevice.deviceId), converted as is to a string.
id | xsd:string | The name ID of this PCI, composed of "bus:slot.function".
systemId | xsd:string | The ID of the system the PCI device is attached to.
vendorId | xsd:short | The vendor ID for this PCI device. You must use the vendor ID retrieved from the vSphere host (HostPciDevice.vendorId).
Properties inherited from VirtualDeviceDeviceBackingInfo
deviceName, useAutoDetect
Properties inherited from VirtualDeviceBackingInfo
None
Properties inherited from DynamicData
None

Show WSDL type definition
<complexType xmlns="http://www.w3.org/2001/XMLSchema" xmlns:vim25="urn:vim25" name="VirtualPCIPassthroughDeviceBackingInfo"> <complexContent> <extension base="vim25:VirtualDeviceDeviceBackingInfo"> <sequence> <element name="id" type="xsd:string"/> <element name="deviceId" type="xsd:string"/> <element name="systemId" type="xsd:string"/> <element name="vendorId" type="xsd:short"/> </sequence> </extension> </complexContent> </complexType>