explicit virtio-blk-pci (cache=writeback, discard=unmap, detect-zeroes=unmap, aio=threads), virtio-net-pci, virtio-rng-pci for guest entropy. hard-require /dev/kvm and always pass -cpu host; drop the tcg fallback since this host always has kvm.
explicit virtio-blk-pci (cache=writeback, discard=unmap, detect-zeroes=unmap, aio=threads), virtio-net-pci, virtio-rng-pci for guest entropy. hard-require /dev/kvm and always pass -cpu host; drop the tcg fallback since this host always has kvm.