Re: [PATCH] VFIO driver: Non-privileged user level PCI drivers

[Avi Kivity]

On 06/02/2010 03:19 PM, Joerg Roedel wrote:
> > Yes.  so you do:
> > iommu = open
> > ioctl(dev1, BIND, iommu)
> > ioctl(dev2, BIND, iommu)
> > ioctl(dev3, BIND, iommu)
> > ioctl(dev4, BIND, iommu)
> >
> > No need to add a SHARE ioctl.
> >      
> In my proposal this looks like:
>
>
> dev1 = open();
> ioctl(dev2, SHARE, dev1);
> ioctl(dev3, SHARE, dev1);
> ioctl(dev4, SHARE, dev1);
>
> So we actually save an ioctl.
>    

The problem with this is that it is assymetric, dev1 is treated 
differently from dev[234].  It's an unintuitive API.

--
error compiling committee.c: too many arguments to function

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