Re: [PATCH v2] iommu/dma: Respect IOMMU aperture when allocating

[Joerg Roedel <joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>]

On Tue, Aug 09, 2016 at 05:31:35PM +0100, Robin Murphy wrote:
> Where a device driver has set a 64-bit DMA mask to indicate the absence
> of addressing limitations, we still need to ensure that we don't
> allocate IOVAs beyond the actual input size of the IOMMU. The reported
> aperture is the most reliable way we have of inferring that input
> address size, so use that to enforce a hard upper limit where available.
> 
> Fixes: 0db2e5d18f76 ("iommu: Implement common IOMMU ops for DMA mapping")
> Signed-off-by: Robin Murphy <robin.murphy-5wv7dgnIgG8@public.gmane.org>
> ---
> 
> Now with bonus "not being completely broken" as well as the min()
> change - seems the necessary prototype changes somehow wound up rebased
> into a different patch :/
> 
>  drivers/iommu/dma-iommu.c | 11 +++++++----
>  1 file changed, 7 insertions(+), 4 deletions(-)

Applied, thanks.