[Qemu-devel] Re: [PATCH RFC] virtio: add features qdev property

[Gerd Hoffmann]

On 12/13/09 21:43, Michael S. Tsirkin wrote:
> Add features property to virtio. This makes it
> possible to e.g. define machine without indirect
> buffer support, which is required for 0.10
> compatibility. or without hardware checksum
> support, which is required for 0.11 compatibility.

I'd suggest to add flags for the individual features to the drivers 
which actually use it instead, so you'll have

  -device virtio-net-pci,hw-checksum=0

and

  -device virtio-blk-pci,indirect-buffers=0

cheers,
  Gerd