[Qemu-discuss] Can`t find the 2nd hot added device in QEMU

[Cao jin]

Hi there,
    I find a "problem" when I test device hot add in qemu monitor.
    Here is the test step I did:

    1. start qemu: ./qemu-system-x86_64 -M q35 -device 
ioh3420,bus=pcie.0,addr=1a.0,port=1,id=bridge1,chassis=1 -hda 
somelinuximg.qcow2 -smp 2 --enable-kvm -m 1024 --monitor stdio

    2. device_add e1000,bus=bridge1,addr=00.0,id=net1,multifunction=on, 
then I can see the NIC in VM shell via lspci & ifconfig, like following:
    $lspci -t
    -[0000:00]-+-00.0
               +-01.0
               +-02.0
               +-1a.0-[01]----00.0
               +-1f.0
               +-1f.2
               \-1f.3

    3. device_add e1000,bus=bridge1,addr=01.0,id=net2,multifunction=on, 
then I think I should see this net2 NIC in the VM, but actually not. the 
lspci -t output is the same as step2, but I can see this device via 
"info pci"

    Could anyone give a hint why I can`t see the 2nd added device?

    Thanks in advance!
--
Yours Sincerely,

Cao Jin