PvScsiControllerSupported() is called on handles passed in by the ConnectController() boot service and if the handle is the PVSCSI controller, the function would return success. A success return value will attach our driver to the device. Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=2567 Reviewed-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Liran Alon <liran.alon@oracle.com> Message-Id: <20200328200100.60786-5-liran.alon@oracle.com> Reviewed-by: Nikita Leshenko <nikita.leshchenko@oracle.com>