Re: [RFC PATCH v6 03/20] iommu/arm-smmu: add IOMMU_CAP_NOEXEC to the ARM SMMU driver

[Alex Williamson]

On Mon, 2014-06-16 at 16:04 +0100, Will Deacon wrote:
> On Thu, Jun 05, 2014 at 06:03:11PM +0100, Antonios Motakis wrote:
> > The ARM SMMU supports the IOMMU_NOEXEC protection flag. Add the
> > corresponding IOMMU capability.
> > 
> > Signed-off-by: Antonios Motakis <a.motakis@xxxxxxxxxxxxxxxxxxxxxx>
> > ---
> >  drivers/iommu/arm-smmu.c | 2 ++
> >  1 file changed, 2 insertions(+)
> > 
> > diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
> > index d5a2200..15ab2af 100644
> > --- a/drivers/iommu/arm-smmu.c
> > +++ b/drivers/iommu/arm-smmu.c
> > @@ -1544,6 +1544,8 @@ static int arm_smmu_domain_has_cap(struct iommu_domain *domain,
> >  	if (smmu_domain->root_cfg.smmu->features & ARM_SMMU_FEAT_COHERENT_WALK)
> >  		caps |= IOMMU_CAP_CACHE_COHERENCY;
> >  
> > +	caps |= IOMMU_CAP_NOEXEC;
> > +
> 
> Just initialise caps to IOMMU_CAP_NOEXEC.

No, it shouldn't be a bitmap in the first place.  Thanks,

Alex

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/