Description of problem:
This bug is similar with bug 890117 but for different devices. In this bug I listed the non-default devices like usb device,virtio-serial, virtio balloon, qxl vga type, etc.
Create separate bugs because tracking all devices in one bug maybe a little muddle,huge and hard to set the priority.
Of course any suggestions or method to track multiple devices issue are welcomed.
Version-Release number of selected component (if applicable):
RHEL6.4 host:
kernel2.6.32-348.el6.x86_64
qemu-kvm-0.12.1.2-2.346.el6.x86_64
RHEL6.2-z host:
kernel-2.6.32-220.30.1.el6.x86_64
qemu-kvm-0.12.1.2-2.209.el6_2.5.x86_64
How reproducible:
Always
Steps to Reproduce:
1. Boot a guest on rhel6.2 host and attach as more devices as possible that 6.2 supported.
# /usr/libexec/qemu-kvm -S -enable-kvm -m 1024 -smp 1,sockets=1,cores=1,threads=1 -name rhel6.1-64 -uuid 69f4aa4b-a575-348e-934b-0c27f138c735 -device sga -monitor stdio -rtc base=utc -no-shutdown -boot order=nc,menu=on -drive file=/home/disk.qcow2,if=none,id=drive-ide0-0-0,format=qcow2,cache=none -device ide-drive,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0 -drive file=/home/boot.iso,id=drive-cdrom,format=raw,if=none,werror=stop,rerror=stop,media=cdrom -device ide-drive,drive=drive-cdrom,id=cdrom -netdev tap,id=hostnet0 -device rtl8139,netdev=hostnet0,id=net0,mac=52:54:00:8a:36:ae,bus=pci.0,addr=0x3 -netdev tap,id=hostnet1 -device e1000,netdev=hostnet1,id=net1,mac=52:54:00:8a:36:20,bus=pci.0,addr=0x4 -netdev tap,id=hostnet2 -device virtio-net-pci,netdev=hostnet2,id=net2,mac=52:54:00:8a:36:20,bus=pci.0,addr=0x5 -chardev pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 -device intel-hda,id=sound0,bus=pci.0,addr=0x6 -device hda-duplex,id=sound0-codec0,bus=sound0.0,cad=0 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x7 -device virtio-serial-pci,id=virtio-serial0,max_ports=16,bus=pci.0,addr=0x8 -chardev socket,id=channel0,host=127.0.0.1,port=12345,server,nowait -device virtserialport,bus=virtio-serial0.0,nr=1,chardev=channel0,id=channel0,name=com.redhat.rhevm.vdsm -chardev spicevmc,id=charchannel1,name=vdagent -device virtserialport,bus=virtio-serial0.0,nr=2,chardev=charchannel1,id=channel1,name=com.redhat.spice.0 -k en-us -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -device usb-tablet,id=input0 -device usb-hub,bus=usb.0,port=2,id=hub -device usb-storage,bus=usb.0,port=2.4,drive=drive-usb-2-0,id=usb-2-0,removable=on -drive file=/home/usb.qcow2,if=none,id=drive-usb-2-0,media=disk,format=qcow2,cache=none,werror=stop,rerror=stop,aio=threads -device usb-kbd,id=kbd,port=2.1 -device usb-mouse,id=mouse,port=2.2 -device usb-ehci,id=ehci,bus=pci.0,addr=0x9 -device usb-storage,drive=drive-usb-0-0,id=usb-0-0,removable=on,bus=ehci.0,port=1 -drive file=/home/usb-2.qcow2,if=none,id=drive-usb-0-0,media=disk,format=qcow2,cache=none,werror=stop,rerror=stop,aio=native -drive file=/home/disk-2.qcow2,if=none,id=drive-virtio0,format=qcow2,cache=none,rerror=stop,werror=stop -device virtio-blk-pci,bus=pci.0,addr=0xa,drive=drive-virtio0,id=virtio0 -drive file=/home/floppy.img,if=none,id=drive-fdc0-0-0,readonly=on,format=raw -global isa-fdc.driveA=drive-fdc0-0-0 -vnc :10 -vga std -watchdog i6300esb -watchdog-action pause
2. On rhel6.2-z host:
(qemu) info qtree
3. Boot guest on rhel6.4 host with the command line in step 1 but append "-M rhel6.2.0"
4. On rhel6.4 host:
(qemu)info qtree
5. Compare the output on step 2 and step 4.
Actual results:
Lot's of properties are different, some properties showing up on 6.4 host but not on 6.2 host.
Some property values are changed on 6.4 host.
Here only highlight some of them, for detail please check attachment.
(*Blue* front means "properties exists on 6.4 but not on 6.2;
*Red* front means "property value changed on rhel6.4 host")
Highlight:
(1)virtio block device:
On rhel6.4 host with -M rhel6.2.0: "dev-prop: ioeventfd = off"
On rhel6.2 host: dev-prop: ioeventfd = on
(2) For virtio serial devices:
On rhel6.4 host:
spicevmc serialport:
dev-prop-int: guest_connected: 0
dev-prop-int: host_connected: 0
another serial port for transferring data:
dev-prop-int: guest_connected: 0
dev-prop-int: host_connected: 0
But on rhel6.2 host:
spicevmc serialport:
dev-prop-int: guest_connected: 1
dev-prop-int: host_connected: 1
another serial port for transferring data:
dev-prop-int: guest_connected: 1
dev-prop-int: host_connected: 0
(3)Please check attachment for rhel6.4 host, lot's of properties showing up on rhel6.4 host, I marked them with blue front.
Expected results:
Additional info: