How to use VFIO to assign a device to nested VM
- Here the vfio-pci device is passed in into the L1 VM
- The L1 VM is setup with
kernel_irqchip=split
- The L0 exposes a virtual IOMMU to the L1 VM
qemu-system-x86_64 \
-machine q35,accel=kvm,kernel_irqchip=split \
-enable-kvm \