On Fri, Apr 26, 2013 at 09:42:31AM -0600, Alex Williamson wrote: > On Fri, 2013-04-26 at 16:02 +1000, David Gibson wrote: > > This patch series represents a second attempt at better integration of > > the vfio code with qemu's handling of guest IOMMUs. It is based on > > Paolo Bonzini's tree at git://github.com/bonzini/qemu.git (iommu > > branch). > > > > ddThis series should open the way for using VFIO with a guest system > > containing an IOMMU by passing guest IOMMU operations through to the > > host IOMMU via VFIO. That's opposed to the present model of having no > > IOMMU in the guest, and simply mapping all guest RAM into the host > > IOMMU. > > > > Patch 1 is just a trivial fix for a build problem introduced in the > > iommu tree. > > I support what this series is trying to achieve, but not how it does it. > vfio needs to be just another driver,
That's a desirable goal, but given vfio has inherently unique
constraints, I'm not sure it's achievable.
> the ugliness and heavy lifting
> should be done in vfio or the common should should be extended to
> generically support the hooks that vfio needs. We can't just drop vfio
> pointers and callbacks into unrelated code. Thanks,
Well, suggest me a way to do it..
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
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