Re: [Qemu-devel] q35 : virtio-serial on pci bridge : bus not found

[Gonglei <arei.gonglei@huawei.com>]

On 2014/8/12 18:51, Alexandre DERUMIER wrote:

> Hi, I can't use virtio-serial, with q35 machine, on a pci bridge (other devices works fine).
> 
> 
> Is it a known bug ?
> 

No, you should lay 'kvm: -device virtio-serial,id=spice,bus=pci.0' before
"-readconfig /usr/share/qemu-server/pve-q35.cfg",which can assure
the bus pci.0 has been created.

Best regards,
-Gonglei

> 
> error message:
> ---------------
> kvm: -device virtio-serial,id=spice,bus=pci.0,addr=0x9: Bus 'pci.0' not found
> 
> 
> architecture is:
> 
> pcie.0
>    --->pcidmi (i82801b11-bridge)
>          ------->pci.0 (pci-bridge)
> 
> 
> 
> /usr/bin/kvm -id 600 -chardev socket,id=qmp,path=/var/run/qemu-server/600.qmp,server,nowait 
> -mon chardev=qmp,mode=control -vnc unix:/var/run/qemu-server/600.vnc,x509,password
> -pidfile /var/run/qemu-server/600.pid -daemonize -name tankrechner -smp sockets=1,cores=1 
> -nodefaults -boot menu=on -vga qxl -cpu kvm64,+lahf_lm,+x2apic,+sep
> -spice tls-port=61002,addr=127.0.0.1,tls-ciphers=DES-CBC3-SHA,seamless-migration=on
> -device virtio-serial,id=spice,bus=pci.0,addr=0x9 
> -chardev spicevmc,id=vdagent,name=vdagent 
> -device virtserialport,chardev=vdagent,name=com.redhat.spice.0 
> -m 1024 
> -readconfig /usr/share/qemu-server/pve-q35.cfg
> -device piix3-usb-uhci,id=uhci,bus=pci.0,addr=0x1.0x2 
> -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 
> -drive if=none,id=drive-ide2,media=cdrom,aio=native 
> -device ide-cd,bus=ide.1,unit=0,drive=drive-ide2,id=ide2,bootindex=200 
> -drive file=/mnt/vmfs-hdd-r5_3x698/images/600/vm-600-disk-1.raw,if=none,id=drive-virtio0,format=raw,aio=native,cache=none
> -device virtio-blk-pci,drive=drive-virtio0,id=virtio0,bus=pci.0,addr=0xa,bootindex=100
> -netdev type=tap,id=net0,ifname=tap600i0,script=/var/lib/qemu-server/pve-bridge,vhost=on
> -device virtio-net-pci,mac=EA:07:3A:31:12:7F,netdev=net0,bus=pci.0,addr=0x12,id=net0,bootindex=300
> -rtc driftfix=slew,base=localtime 
> -machine type=q35
> 
> 
> with pve-q35.cfg
> 
> [device "ehci"]
>   driver = "ich9-usb-ehci1"
>   multifunction = "on"
>   bus = "pcie.0"
>   addr = "1d.7"
> 
> [device "uhci-1"]
>   driver = "ich9-usb-uhci1"
>   multifunction = "on"
>   bus = "pcie.0"
>   addr = "1d.0"
>   masterbus = "ehci.0"
>   firstport = "0"
> 
> [device "uhci-2"]
>   driver = "ich9-usb-uhci2"
>   multifunction = "on"
>   bus = "pcie.0"
>   addr = "1d.1"
>   masterbus = "ehci.0"
>   firstport = "2"
> 
> [device "uhci-3"]
>   driver = "ich9-usb-uhci3"
>   multifunction = "on"
>   bus = "pcie.0"
>   addr = "1d.2"
>   masterbus = "ehci.0"
>   firstport = "4"
> 
> [device "ehci-2"]
>   driver = "ich9-usb-ehci2"
>   multifunction = "on"
>   bus = "pcie.0"
>   addr = "1a.7"
> 
> [device "uhci-4"]
>   driver = "ich9-usb-uhci4"
>   multifunction = "on"
>   bus = "pcie.0"
>   addr = "1a.0"
>   masterbus = "ehci-2.0"
>   firstport = "0"
> 
> [device "uhci-5"]
>   driver = "ich9-usb-uhci5"
>   multifunction = "on"
>   bus = "pcie.0"
>   addr = "1a.1"
>   masterbus = "ehci-2.0"
>   firstport = "2"
> 
> [device "uhci-6"]
>   driver = "ich9-usb-uhci6"
>   multifunction = "on"
>   bus = "pcie.0"
>   addr = "1a.2"
>   masterbus = "ehci-2.0"
>   firstport = "4"
> 
> [device "audio0"]
>   driver = "ich9-intel-hda"
>   bus = "pcie.0"
>   addr = "1b.0"
> 
> 
> [device "ich9-pcie-port-1"]
>   driver = "ioh3420"
>   multifunction = "on"
>   bus = "pcie.0"
>   addr = "1c.0"
>   port = "1"
>   chassis = "1"
> 
> [device "ich9-pcie-port-2"]
>   driver = "ioh3420"
>   multifunction = "on"
>   bus = "pcie.0"
>   addr = "1c.1"
>   port = "2"
>   chassis = "2"
> 
> [device "ich9-pcie-port-3"]
>   driver = "ioh3420"
>   multifunction = "on"
>   bus = "pcie.0"
>   addr = "1c.2"
>   port = "3"
>   chassis = "3"
> 
> [device "ich9-pcie-port-4"]
>   driver = "ioh3420"
>   multifunction = "on"
>   bus = "pcie.0"
>   addr = "1c.3"
>   port = "4"
>   chassis = "4"
> [device "pcidmi"}
>   driver = "i82801b11-bridge"
>   bus = "pcie.0"
>   addr = "1e.0"
> 
> [device "pci.0"]
>   driver = "pci-bridge"
>   bus = "pcidmi"
>   addr = "1.0"
>   chassis_nr = "1"
> 
> [device "pci.1"]
>   driver = "pci-bridge"
>   bus = "pcidmi"
>   addr = "2.0"
>   chassis_nr = "2"
> 
> [device "pci.2"]
>   driver = "pci-bridge"
>   bus = "pcidmi"
>   addr = "3.0"
>   chassis_nr = "3"
> 
>