[libvirt] [Qemu-devel] [PATCH for-4.0 v4 0/2] virtio: Provide version-specific variants of virtio PCI devices

[Gerd Hoffmann]

  Hi,

>   -device virtio-blk-pci-non-transitional \
>   -device virtio-net-pci-non-transitional \
>   -device virtio-gpu-pci-non-transitional \
> 
> and you wouldn't have to question why you can use the
> non-transitional variant for pretty much everything, except for the
> few cases where you can't - for no apparent reason...

Well, there are no variants, only a single virtio-$foo-pci* device.  So
you don't have to worry about picking one of the available variants,
there is no choice in the first place.

When adding an virtio-gpu-pci-non-transitional variant we'll create
confusion too, because it wouldn't be a real variant.  We would have two
100% identical devices then, and people will probably wonder why they
exist and what the difference is ...

So I can't see how this would be so much better.  We have to document
the mess no matter what.

cheers,
  Gerd