Hi, I'm hoping someone could possibly show me what I may be doing wrong here, and why I'm not seeing the expected results Thanks in advance! Server Information:HP Product Name: ProLiant DL165 G7 Ethernet Card Information: Intel 82599EB 10-Gigabit SFI/SFP+ uname: Linux 3.0.0-16-server x86_64 GNU/Linux OS Release: Ubuntu 11.10 qemu-kvm version 0.14.1+noroms-0ubuntu6.2 First, here's a list of my VFs: # ip link show: 2: eth0: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc mq master bond0 state UP qlen 1000 link/ether 00:1b:21:7d:70:16 brd ff:ff:ff:ff:ff:ff vf 0 MAC 02:22:25:00:00:00 vf 1 MAC 02:22:25:00:00:01 vf 2 MAC 02:22:25:00:00:02 vf 3 MAC 02:22:25:00:00:03 vf 4 MAC 02:22:25:00:00:04 vf 5 MAC 02:22:25:00:00:05 vf 6 MAC 02:22:25:00:00:06 3: eth1: <NO-CARRIER,BROADCAST,MULTICAST,SLAVE,UP> mtu 1500 qdisc mq master bond0 state DOWN qlen 1000 link/ether 00:1b:21:7d:70:16 brd ff:ff:ff:ff:ff:ff vf 0 MAC 02:22:25:01:00:00 vf 1 MAC 02:22:25:01:00:01 vf 2 MAC 02:22:25:01:00:02 vf 3 MAC 02:22:25:01:00:03 vf 4 MAC 02:22:25:01:00:04 vf 5 MAC 02:22:25:01:00:05 vf 6 MAC 02:22:25:01:00:06 # lspci |grep 05 05:00.0 Ethernet controller: Intel Corporation 82576 Gigabit Network Connection (rev 01) 05:00.1 Ethernet controller: Intel Corporation 82576 Gigabit Network Connection (rev 01) 05:10.0 Ethernet controller: Intel Corporation 82576 Virtual Function (rev 01) 05:10.1 Ethernet controller: Intel Corporation 82576 Virtual Function (rev 01) 05:10.2 Ethernet controller: Intel Corporation 82576 Virtual Function (rev 01) 05:10.3 Ethernet controller: Intel Corporation 82576 Virtual Function (rev 01) 05:10.4 Ethernet controller: Intel Corporation 82576 Virtual Function (rev 01) 05:10.5 Ethernet controller: Intel Corporation 82576 Virtual Function (rev 01) 05:10.6 Ethernet controller: Intel Corporation 82576 Virtual Function (rev 01) 05:10.7 Ethernet controller: Intel Corporation 82576 Virtual Function (rev 01) 05:11.0 Ethernet controller: Intel Corporation 82576 Virtual Function (rev 01) 05:11.1 Ethernet controller: Intel Corporation 82576 Virtual Function (rev 01) 05:11.2 Ethernet controller: Intel Corporation 82576 Virtual Function (rev 01) 05:11.3 Ethernet controller: Intel Corporation 82576 Virtual Function (rev 01) 05:11.4 Ethernet controller: Intel Corporation 82576 Virtual Function (rev 01) 05:11.5 Ethernet controller: Intel Corporation 82576 Virtual Function (rev 01) # virsh nodedev-list |grep 05 pci_0000_05_00_0 pci_0000_05_00_1 pci_0000_05_10_0 pci_0000_05_10_1 pci_0000_05_10_2 pci_0000_05_10_3 pci_0000_05_10_4 pci_0000_05_10_5 pci_0000_05_10_6 pci_0000_05_10_7 pci_0000_05_11_0 pci_0000_05_11_1 pci_0000_05_11_2 pci_0000_05_11_3 pci_0000_05_11_4 pci_0000_05_11_5 4 Now detach 05.10.0 and 05.11.0 from the host: # virsh nodedev-dettach pci_0000_05_10_0 Device pci_0000_05_10_0 dettached # virsh nodedev-dettach pci_0000_05_11_0 Device pci_0000_05_11_0 dettached 5. Get the host, slot, function information: # virsh nodedev-dumpxml pci_0000_05_10_0|grep -e bus -e slot -e fun |head -3 <bus>5</bus> <slot>16</slot> <function>0</function> # virsh nodedev-dumpxml pci_0000_05_11_0|grep -e bus -e slot -e fun |head -3 <bus>5</bus> <slot>17</slot> <function>0</function> == GUEST-A == XML: ... <hostdev mode='subsystem' type='pci' managed='yes'> <source> <address domain='0x0000' bus='0x05' slot='0x10' function='0x0'/> </source> <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/> </hostdev> <hostdev mode='subsystem' type='pci' managed='yes'> <source> <address domain='0x0000' bus='0x05' slot='0x11' function='0x0'/> </source> <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/> </hostdev> ... CLI: /usr/bin/kvm -S \ -M pc-0.14 \ -enable-kvm \ -m 256 \ -smp 1,sockets=1,cores=1,threads=1 \ -name GUEST-A \ -uuid 9bac7b2f-dbb4-0f2a-08e6-47018d6630db \ -nodefconfig -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/HOST-A.monitor,server,nowait \ -mon chardev=charmonitor,id=monitor,mode=readline \ -rtc base=utc \ -boot cn \ -drive file=/srv/node/sdc1/HOST-A.raw,if=none,id=drive-virtio-disk0,boot=on,format=raw,cache=none \ -device virtio-blk-pci,bus=pci.0,addr=0x3,drive=drive-virtio-disk0,id=virtio-disk0 \ -chardev pty,id=charserial0 \ -device isa-serial,chardev=charserial0,id=serial0 \ -usb \ -vnc 0.0.0.0:0 \ -vga cirrus \ -device pci-assign,host=05:10.0,id=hostdev0,configfd=20,bus=pci.0,addr=0x4 \ -device pci-assign,host=05:11.0,id=hostdev1,configfd=21,bus=pci.0,addr=0x5 \ -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x6 dmesg: [ 3.072509] igbvf 0000:00:04.0: Intel(R) 82576 Virtual Function [ 3.072514] igbvf 0000:00:04.0: Address: 02:22:25:00:00:00 [ 3.072516] igbvf 0000:00:04.0: MAC: 1 [ 3.241325] igbvf 0000:00:05.0: Intel(R) 82576 Virtual Function [ 3.241329] igbvf 0000:00:05.0: Address: 02:22:25:00:00:04 [ 3.241332] igbvf 0000:00:05.0: MAC: 1 ip link: 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 02:22:25:00:00:00 brd ff:ff:ff:ff:ff:ff 3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 02:22:25:00:00:04 brd ff:ff:ff:ff:ff:ff Expected Results: GUEST-A should have the following assignment: eth0 should = eth0-vf0 (bus:5, slot:10, fun:0), mac: 02:22:25:00:00:00 eth1 should = eth1-vf0 (bus:5, slot:11, fun:0), mac: 02:22:25:01:00:00