Re: [PATCH v3 1/5] iommu: Add DOMAIN_ATTR_SPLIT_TABLES

Will Deacon
2020-01-09T14:36:54Z

On Mon, Dec 16, 2019 at 09:37:47AM -0700, Jordan Crouse wrote:
> Add a new attribute to enable and query the state of split pagetables
> for the domain.
>
> Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
> ---
>
> include/linux/iommu.h | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/include/linux/iommu.h b/include/linux/iommu.h
> index f2223cb..18c861e 100644
> --- a/include/linux/iommu.h
> +++ b/include/linux/iommu.h
> @@ -126,6 +126,7 @@ enum iommu_attr {
> DOMAIN_ATTR_FSL_PAMUV1,
> DOMAIN_ATTR_NESTING, /* two stages of translation */
> DOMAIN_ATTR_DMA_USE_FLUSH_QUEUE,
> + DOMAIN_ATTR_SPLIT_TABLES,
> DOMAIN_ATTR_MAX,
> };

Acked-by: Will Deacon <will@kernel.org>

Although a comment describing what this does wouldn't hurt.

Will