Pull VFIO updates from Alex Williamson:

 - Expose and allow R/W access to the PCIe DVSEC capability through
   vfio-pci, as we already do with the legacy vendor capability
   (K V P Satyanarayana)

 - Fix kernel-doc issues with structure definitions (Simon Horman)

 - Clarify ordering of operations relative to the kvm-vfio device for
   driver dependencies against the kvm pointer (Yi Liu)

* tag 'vfio-v6.4-rc1' of https://github.com/awilliam/linux-vfio:
  docs: kvm: vfio: Suggest KVM_DEV_VFIO_GROUP_ADD vs VFIO_GROUP_GET_DEVICE_FD ordering
  vfio: correct kdoc for ops structures
  vfio/pci: Add DVSEC PCI Extended Config Capability to user visible list.