-[0000:00]-+-00.0  Intel Corporation 82G33/G31/P35/P31 Express DRAM Controller
           +-01.0  Red Hat, Inc. Virtio GPU
           +-02.0-[01-02]----00.0-[02]----01.0  Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) High Definition Audio Controller
           +-02.1-[03]----00.0  Red Hat, Inc. Virtio network device
           +-02.2-[04]----00.0  Red Hat, Inc. Virtio SCSI
           +-02.3-[05]----00.0  NEC Corporation uPD720200 USB 3.0 Host Controller
           +-02.4-[06]----00.0  Red Hat, Inc. Virtio console
           +-02.5-[07]----00.0  Red Hat, Inc. Virtio memory balloon
           +-02.6-[08]--
           +-1f.0  Intel Corporation 82801IB (ICH9) LPC Interface Controller
           +-1f.2  Intel Corporation 82801IR/IO/IH (ICH9R/DO/DH) 6 port SATA Controller [AHCI mode]
           \-1f.3  Intel Corporation 82801I (ICH9 Family) SMBus Controller