Changing NIC PCI Bus address

[Vladislav Solovei]

Hello.

It is possible to change PCI bus address for NIC in Proxmox?
I mean, these values (on example): -device virtio-net-pci...,netdev=net0,bus=pci.0,addr=0x12

 

[dcsapak]

no but why do you want to change those?

 

[Vladislav Solovei]

no but why do you want to change those?

I am trying to migrate some Windows VM's to Proxmox.
The network interface had a different address (pci.0, addr=0x3).
MAC address and network device type left same.
After the migration, the address changed to pci.0, addr=0x12, and the previously configured network connection (manually configured) disappeared in Windows, instead of it a different connection appeared (Local area connection # 2) with default settings (dhcp)...

 

[Christian Steineder]

This is another use case for us:
We also need this feature for migrating an appliance where licenses are bound to the bus order.

 

[pieteras.meyer]

Im also looking for this solution,

tried below in vm config file, while trying to add a interface from DPDK bridge ( ovs or vpp) vhost-user interfaces

Like from below
https://access.redhat.com/documenta...ion_pci_devices_to_kvm_guest_virtual_machines

<address type='pci' domain='0x0000' bus='0x10' slot='0x00' function='0x0' multifunction='on'/>
<address type='pci' domain='0x0000' bus='0x10' slot='0x00' function='0x1'/>

Below is what I would add to vm.conf file but not sure how to add the slot and function to the config file

args: -chardev socket,id=char1,path=/var/run/vpp/vhost-200-e1,server=on -netdev type=vhost-user,id=net0,chardev=char1,vhostforce=on,queues=10 -device virtio-net-pci,bus=pci.0,addr=0x12,mac=52:54:00:21:42:D3,netdev=net0,mq=on,packed=on,vectors=22,mrg_rxbuf=on,rx_queue_size=1024,tx_queue_size=1024 -chardev socket,id=char2,path=/var/run/vpp/vhost-200-e2,server=on -netdev type=vhost-user,id=net1,chardev=char2,vhostforce=on,queues=10 -device virtio-net-pci,bus=pci.0,addr=0x12,mac=52:54:00:21:42:D4,netdev=net1,mq=on,packed=on,vectors=22,mrg_rxbuf=on,rx_queue_size=1024,tx_queue_size=1024

 

[fknorn]

Hello.

It is possible to change PCI bus address for NIC in Proxmox?
I mean, these values (on example): -device virtio-net-pci...,netdev=net0,bus=pci.0,addr=0x12

This is another use case for us:
We also need this feature for migrating an appliance where licenses are bound to the bus order.

Im also looking for this solution,

tried below in vm config file, while trying to add a interface from DPDK bridge ( ovs or vpp) vhost-user interfaces

Like from below
https://access.redhat.com/documenta...ion_pci_devices_to_kvm_guest_virtual_machines

<address type='pci' domain='0x0000' bus='0x10' slot='0x00' function='0x0' multifunction='on'/>
<address type='pci' domain='0x0000' bus='0x10' slot='0x00' function='0x1'/>

Below is what I would add to vm.conf file but not sure how to add the slot and function to the config file

args: -chardev socket,id=char1,path=/var/run/vpp/vhost-200-e1,server=on -netdev type=vhost-user,id=net0,chardev=char1,vhostforce=on,queues=10 -device virtio-net-pci,bus=pci.0,addr=0x12,mac=52:54:00:21:42:D3,netdev=net0,mq=on,packed=on,vectors=22,mrg_rxbuf=on,rx_queue_size=1024,tx_queue_size=1024 -chardev socket,id=char2,path=/var/run/vpp/vhost-200-e2,server=on -netdev type=vhost-user,id=net1,chardev=char2,vhostforce=on,queues=10 -device virtio-net-pci,bus=pci.0,addr=0x12,mac=52:54:00:21:42:D4,netdev=net1,mq=on,packed=on,vectors=22,mrg_rxbuf=on,rx_queue_size=1024,tx_queue_size=1024

@pieteras.meyer @Christian St. @vladislv - did you get anywhere with this? Did you manage to customise the bus address? Trying to achieve this too but am struggeling... thanks!

I always get something along the lines of "addr" and "bus" property not being defined in schema... Thanks for any pointers!