Re: Outline for VHOST_USER_PROTOCOL_F_VDPA

[Gerd Hoffmann]

  Hi,

> > Architecturally, I think we can have 3 processes:
> > 
> > VMM -- guest device emulation -- host backend
> > 
> > to me this looks like increasing our defence in depth strength,
> > as opposed to just shifting things around ...
> 
> Cool idea.

Isn't that exactly what we can do once the multi-process qemu patches
did land, at least for block devices?  With "VMM" being main qemu,
"guest device emulation" being offloaded to one (or more) remote qemu
process(es), and qemu-storage-daemon being the host backend?

take care,
  Gerd