include::meta/VK_EXT_pci_bus_info.txt[]

*Last Modified Date*::
    2018-12-10
*IP Status*::
    No known IP claims.
*Contributors*::
  - Matthaeus G. Chajdas, AMD
  - Daniel Rakos, AMD

This extension adds a new query to obtain PCI bus information about a
physical device.

Not all physical devices have PCI bus information, either due to the device
not being connected to the system through a PCI interface or due to platform
specific restrictions and policies.
Thus this extension is only expected to be supported by physical devices
which can provide the information.

As a consequence, applications should always check for the presence of the
extension string for each individual physical device for which they intend
to issue the new query for and should not have any assumptions about the
availability of the extension on any given platform.

=== New Object Types

None.

=== New Enum Constants

  * Extending elink:VkStructureType:
  ** ename:VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PCI_BUS_INFO_PROPERTIES_EXT

=== New Enums

None.

=== New Structures

  * slink:VkPhysicalDevicePCIBusInfoPropertiesEXT

=== New Functions

None.

=== Issues

None.

=== Examples

None.

=== Version History

  * Revision 2, 2018-12-10 (Daniel Rakos)
    - Changed all members of the new structure to have the uint32_t type
  * Revision 1, 2018-10-11 (Daniel Rakos)
    - Initial revision