Hi Laurent, On Mon, Jan 26, 2015 at 03:03:57PM +0200, Laurent Pinchart wrote: > On Monday 26 January 2015 12:00:59 Joerg Roedel wrote: > > My plan is to make IOMMU groups mandatory. I am currently preparing and > > RFC patch-set to introduce default-domains (which will be per group). So > > when all IOMMU drivers are converted to make use of default domains the > > iommu groups will be mandatory. > > Could the default domain policy be configured by the IOMMU driver ? The ipmmu- > vmsa driver supports four domains only, and serves up to 32 masters, with one > group per master. A default of one domain per group wouldn't be usable. I guess this limitation is a property of the iommu hardware. I currently have no support for this in the patch-set, but I think it is easy (and the best way) to support a model where we have only one default domain for all groups. This is not in the patch set right now, but will be added at some point. Joerg -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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