[PATCH 6/9] iommu/arm-smmu: Support buggy implemenations where all config accesses are secure

[Will Deacon]

On Thu, Sep 26, 2013 at 11:36:18PM +0100, Andreas Herrmann wrote:
> In such a case we have to use secure aliases of some non-secure
> registers.
> 
> This behaviour is controlled via a flag in smmu->bugs. It is set
> based on DT information when probing an SMMU device.

:(

I guess my main comment is just some understanding on how things are wired.
It's *just* the configuration access that is secure, right? Device
transactions are non-secure, so the existing TLB invalidation code will work
correctly?

Will