Re: [PATCH v5 03/23] iommu/vt-d: add a flag for pasid table bound status

[Lu Baolu]

Hi again,

On 05/12/2018 04:53 AM, Jacob Pan wrote:
> Adding a flag in device domain into to track whether a guest or
> user PASID table is bound to a device.
>
> Signed-off-by: Jacob Pan <jacob.jun.pan@xxxxxxxxxxxxxxx>
> ---
>  include/linux/intel-iommu.h | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/include/linux/intel-iommu.h b/include/linux/intel-iommu.h
> index 304afae..ddc7d79 100644
> --- a/include/linux/intel-iommu.h
> +++ b/include/linux/intel-iommu.h
> @@ -473,6 +473,7 @@ struct device_domain_info {
>  	u8 pri_enabled:1;
>  	u8 ats_supported:1;
>  	u8 ats_enabled:1;
> +	u8 pasid_table_bound:1;

Can you please add some comments here? So that, people can
understand the purpose for this bit exactly.

Best regards,
Lu Baolu

>  	u8 ats_qdep;
>  	u64 fault_mask;	/* selected IOMMU faults to be reported */
>  	struct device *dev; /* it's NULL for PCIe-to-PCI bridge */