I have 2x GPUs and an LSI HBA successfully passing through to VMs so I know IOMMU is configured properly and working. SR-IOV is turned on in the MB EUFI BIOS along with the other required settings IOMMU etc.
here is my /etc/modules
vfio
vfio_iommu_type1
vfio_pci
vfio_virqfd
here is the...