-[0000:00]-+-00.0  Intel Corporation 82G33/G31/P35/P31 Express DRAM Controller
           +-01.0  Red Hat, Inc. QXL paravirtual graphic card
           +-02.0-[01]----00.0  Red Hat, Inc. Virtio 1.0 network device
           +-02.1-[02]----00.0  Red Hat, Inc. QEMU XHCI Host Controller
           +-02.2-[03]----00.0  Red Hat, Inc. Virtio 1.0 console
           +-02.3-[04]----00.0  Red Hat, Inc. Virtio 1.0 block device
           +-02.4-[05]----00.0  Red Hat, Inc. Virtio 1.0 memory balloon
           +-02.5-[06]----00.0  Red Hat, Inc. Virtio 1.0 RNG
           +-02.6-[07]--
           +-02.7-[08]--
           +-03.0-[09]--
           +-03.1-[0a]--
           +-03.2-[0b]--
           +-03.3-[0c]--
           +-03.4-[0d]--
           +-03.5-[0e]--
           +-1b.0  Intel Corporation 82801I (ICH9 Family) HD Audio Controller
           +-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