[libvirt-users] can't up the eth in the vm and access to network

[guan qin]

Hi，the libvirt version is 0.8.3, I just used  "apt-get install libvirt-bin"
to install it under debian6.0.1a.
Is it  necessary to install 0.8.4 or higher version ?

Best regards,
qinguan


在 2011年5月3日 下午4:28，Osier Yang <jyang at redhat.com>写道：

> 于 2011年05月03日 15:38, guan qin 写道:
> > Thanks a lot for your reply sincerely!
> > Actually ,if I do as what
> > http://www.linux-kvm.org/page/How_to_assign_devices_with_VT-d_in_KVMsaid,:
> > "
> > # echo "8086 10b9" > /sys/bus/pci/drivers/pci-stub/new_id
> > # echo 0000:01:00.0 > /sys/bus/pci/devices/0000:01:00.0/driver/unbind
> > # echo 0000:01:00.0 > /sys/bus/pci/drivers/pci-stub/bind
> > "
> > Then I can assign a NIC to the VM ,and the VM also can use the NIC to
> > access the network.
> > But , according the libvirt guide that
> > http://libvirt.org/formatdomain.html#elementsUSB shows:
> > "
> > When |managed| is "yes" for a PCI device, it is detached from the host
> > before being passed on to the guest.
> > "
> > So should I still "unbind " the device from the host OS driver first ?
> > If that ,What's the "detached" meaning ? thanks.
> > best regards,
> > qinguan
>
> libvirt trys to detach the PCI device from host as preparation when
> starting up the domain, and it also binds the device to pci_stub
> driver, so it's strange that you need to do it manually? what's
> your libvirt version?
>
> > 在 2011年5月3日 上午8:47，David White <dwhite at speakeasy.net
> > <mailto:dwhite at speakeasy.net>>写道：
> >
> >
> >     did you 'unbind' the device from the host OS driver?
> >
> >
> >     On 05/01/2011 01:38 AM, guan qin wrote:
> >>     Hi,
> >>
> >>     I encounter a problem that the eth can't be up in the VM by using
> >>     VT-d.
> >>     I boot the VM using "virsh create vt_d.xml".
> >>     The VM could recongize the NIC which was assigned .then I do in VM
> >>     as follows:
> >>     #cat /sys/class/net/eth0/operstate
> >>     down
> >>     #ifconfig eth0 up
> >>     #cat /sys/class/net/eth0/operstate
> >>     down
> >>     #ficonfig eth 10.100.0.5
> >>     #cat /sys/class/net/eth0/operstate
> >>     down
> >>     more system information is attached.(uname 、ifconfig 、lspci、
> >>     cmdline...)
> >>
> >>     I can't figure out the reason why the eth is still down? can
> >>     anyone help me ?
> >>
> >>     best regards,
> >>     qinguan
> >>
> >>
> >>
> >>     vt_d.xml:
> >>     <domain type='kvm'>
> >>     <name>test</name>
> >>     <description>just test using sriov!</description>
> >>     <os>
> >>     <type>hvm</type>
> >>     <boot dev='hd'/>
> >>     </os>
> >>     <memory>524288</memory>
> >>     <currentMemory>524288</currentMemory>
> >>     <on_poweroff>destroy</on_poweroff>
> >>     <on_reboot>restart</on_reboot>
> >>     <on_crash>restart</on_crash>
> >>
> >>     <features><pae/><acpi/><apic/></features>
> >>     <clock offset='utc'/>
> >>     <devices>
> >>     <input type='mouse' bus='usb'/>
> >>     <disk type='file' device='disk'>
> >>     <source file='/home/qinguan/exp/ubuntu_1.img'/>
> >>     <target dev='hda' bus='virtio'/>
> >>     </disk>
> >>     <emulator>/usr/bin/kvm</emulator>
> >>     <graphics type='vnc' port='-1'/>
> >>     <hostdev mode='subsystem' type='pci' managed='yes'>
> >>     <source>
> >>     <address bus='0x0' slot='0x19' function='0x0'/>
> >>     </source>
> >>     </hostdev>
> >>     </devices>
> >>     </domain>
> >>
> >>
> >>     _______________________________________________
> >>     libvirt-users mailing list
> >>     libvirt-users at redhat.com  <mailto:libvirt-users at redhat.com>
> >>     https://www.redhat.com/mailman/listinfo/libvirt-users
> >
> >
> >
> >
> > _______________________________________________
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>
>
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