Re: [PATCH v4 10/15] intel-iommu: Implement IOMMU_ATTR_MAX_IOVA get_attr() attribute

[Avihai Horon <avihaih@nvidia.com>]

On 23/06/2023 0:48, Joao Martins wrote:
> External email: Use caution opening links or attachments
>
>
> From: Avihai Horon <avihaih@nvidia.com>
>
> Implement get_attr() method and use the address width property to report
> the IOMMU_ATTR_MAX_IOVA attribute.

Nit: get_attr() method was already implemented in patch #6.
Maybe just "Use address width property to report IOMMU_ATTR_MAX_IOVA 
attribute"?

Thanks.

>
> Signed-off-by: Avihai Horon <avihaih@nvidia.com>
> Signed-off-by: Joao Martins <joao.m.martins@oracle.com>
> ---
>   hw/i386/intel_iommu.c | 7 +++++++
>   1 file changed, 7 insertions(+)
>
> diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c
> index ed2a46e008df..989993e303a6 100644
> --- a/hw/i386/intel_iommu.c
> +++ b/hw/i386/intel_iommu.c
> @@ -3876,6 +3876,13 @@ static int vtd_iommu_get_attr(IOMMUMemoryRegion *iommu_mr,
>           *enabled = s->dma_translation;
>           break;
>       }
> +    case IOMMU_ATTR_MAX_IOVA:
> +    {
> +        hwaddr *max_iova = (hwaddr *)(uintptr_t) data;
> +
> +        *max_iova = MAKE_64BIT_MASK(0, s->aw_bits);;
> +        break;
> +    }
>       default:
>           ret = -EINVAL;
>           break;
> --
> 2.17.2
>