Subject: [RFC PATCH 4/7] iommu: provide helper function to configure an IOMMU for an of master

From: [email-masked] (jroedel at suse.de)
Date: Tue, 2 Sep 2014 22:59:41 +0200

On Tue, Sep 02, 2014 at 04:01:32PM +0200, Arnd Bergmann wrote:
> This is an artifact of the API being single-instance at the moment.
> We might not in fact need it, I was just trying to think of things
> that naturally fit in there and that are probably already linked
> together in the individual iommu drivers.

I am not sure what you mean by single-instance. Is it that currently the
API only supports one type of iommu_ops per bus? That should be fine as
long as there is only one type of IOMMU on the bus.

Besides that, it is a feature of the IOMMU-API to hide the details about
all the hardware IOMMUs in the system from its users.

	Joerg