is it possible to modify a q35 machine to add more components?

[babas24]

Is it possible to add more devices to a q35 machine under proxmox like using qemu
for adding an other controler 'pci' model='pcie-root-port' model name='ioh3420

does any one try this?
is there any documentation somewhere

 

[leesteken]

You can put additional parameters for QEMU/KVM in the args: setting in the VM configuration file. See the QEMU website or use the kvm --help command for more information about the QEMU/KVM virtualization system used by Proxmox VE.

EDIT: You'll probably want to do something like args: -device ioh3420. You can use kvm -device ioh3420,help to see all options for that virtual device.