Re: [Qemu-devel] [PATCH 1/3] Device isolation group infrastructure (v3)

[Benjamin Herrenschmidt]

On Wed, 2012-02-08 at 16:27 +0100, Joerg Roedel wrote:
> Again, device grouping is done by the IOMMU drivers, so this all
> belongs
> into the generic iommu-code rather than the driver core.

Except that there isn't really a "generic iommu code"... discovery,
initialization & matching of iommu vs. devices etc... that's all
implemented in the arch specific iommu code.

Cheers,
Ben.
  
> I think it makes sense to introduce a device->iommu pointer which
> depends on CONFIG_IOMMU_API and put the group information into it.
> This also has the benefit that we can consolidate all the
> device->arch.iommu pointers into device->iommu as well.
> 
>