On Wed, 2013-12-18 at 13:01 -0800, Greg KH wrote: > On Wed, Dec 18, 2013 at 01:56:32PM -0700, Alex Williamson wrote: > > VFIO currently allocates it's own dynamic chardev range, reserving the > > first minor for the control part of the interface (/dev/vfio/vfio) and > > the remainder for VFIO groups (/dev/vfio/$GROUP). This works, but it > > doesn't support auto loading. For instance when libvirt checks for > > VFIO support it looks for /dev/vfio/vfio, which currently doesn't > > exist unless the vfio module is loaded. By converting the control > > device to a misc driver and reserving a static minor, we can enable > > auto loading. > > > > Reserving the minor is a prerequist to that conversion. Minor 196 > > is unused by anything currently in the kernel. > > > > Suggested-by: Paolo Bonzini <pbonz...@redhat.com> > > Signed-off-by: Alex Williamson <alex.william...@redhat.com> > > --- > > > > v2: Plea for ack edition > > > > As Alan suspected, there's been no response from dev...@lanana.org, > > so there's probably nobody monitoring it anymore. I've done due > > diligence looking at all the callers of misc_register() in linux-next > > and cannot find any conflicts with minor 196. If anyone wants to toss > > me an ack or sign-off I'll be happy to bring this in through my vfio > > tree, otherwise I'd appreciate if someone wants to take it directly. > > Thanks! > > > > Documentation/devices.txt | 1 + > > include/linux/miscdevice.h | 1 + > > 2 files changed, 2 insertions(+) > > Acked-by: Greg Kroah-Hartman <gre...@linuxfoundation.org> > > Feel free to take this through your tree.
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