Add a basic test of the vfio-user PCI client implementation.
Co-authored-by: John Levon <john.levon@nutanix.com>
Signed-off-by: Mark Cave-Ayland <mark.caveayland@nutanix.com>
Signed-off-by: John Levon <john.levon@nutanix.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250911210905.2070474-1-john.levon@nutanix.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>