I have two VMs on one node. The both use PCI devices, but different. And they can't run at the same time together.
Error from first:
kvm: -device vfio-pci,host=0000:02:00.0,id=hostpci1,bus=ich9-pcie-port-2,addr=0x0: vfio 0000:02:00.0: failed to open /dev/vfio/1: Device or resource busy
TASK...