Using IVS with libvirt (KVM)
Prerequisites
Follow the instructions at the IVS Installation Guide to get IVS installed and running.
Installation
#Install Install the packages required for kvm
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sudo apt-get install kvm libvirt-bin virtinst |
#Remove Remove the bridge created by libvirt
(Do this step only if you are exclusively using xenon for your virtual network topology on this host.)
...
Configure any virtual machines with the following interface statement under <devices> to attach them to the xenon IVS switch.
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sudo virsh edit <vmname> |
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<interface type='ethernet'> <script path='/etc/xenonivs-ifup'/> </interface> |
Here is a full sample of an XML configuration for a VM running on a xenon IVS switch.
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<domain type='kvm'>
<name>newvm2</name>
<uuid>cd4e4b03-487d-6583-0b95-d4a41cc2503b</uuid>
<memory>262144</memory>
<currentMemory>262144</currentMemory>
<vcpu>1</vcpu>
<os>
<type arch='x86_64' machine='pc-1.0'>hvm</type>
<boot dev='hd'/>
</os>
<features>
<acpi/>
</features>
<clock offset='utc'/>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>destroy</on_crash>
<devices>
<emulator>/usr/bin/kvm</emulator>
<disk type='file' device='disk'>
<driver name='qemu' type='qcow2'/>
<source file='/home/administrator/newvm2/tmpRVK6eg.qcow2'/>
<target dev='hda' bus='ide'/>
<address type='drive' controller='0' bus='0' unit='0'/>
</disk>
<controller type='ide' index='0'>
<address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
</controller>
<interface type='ethernet'>
<mac address='52:54:00:d6:48:b1'/>
<script path='/etc/xenonivs-ifup'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
</interface>
<input type='mouse' bus='ps2'/>
<graphics type='vnc' port='-1' autoport='yes' listen='127.0.0.1'>
<listen type='address' address='127.0.0.1'/>
</graphics>
<video>
<model type='cirrus' vram='9216' heads='1'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
</video>
<memballoon model='virtio'>
<address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
</memballoon>
</devices>
</domain>
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After starting your virtual machines, you should be able to see the tap interfaces connected to the switch with xenonivs-ctl show.
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~$ xenonivs-ctl show indigo: kernel lookups: hit=0 missed=390 lost=12 kernel flows=0 ports: 0 indigo (internal) rx: packets=12 bytes=720 errors=0 dropped=0 tx: packets=0 bytes=0 errors=0 dropped=0 1 tap0 rx: packets=35 bytes=4213 errors=0 dropped=0 tx: packets=35 bytes=4402 errors=0 dropped=0 2 tap1 rx: packets=35 bytes=4402 errors=0 dropped=0 tx: packets=35 bytes=4213 errors=0 dropped=0 1023 gre (gre) rx: packets=0 bytes=0 errors=0 dropped=0 tx: packets=0 bytes=0 errors=0 dropped=362 |