RE: [PATCH v4 11/13] iommu/vt-d: Add set_dev_pasid callback for nested domain

Tian, Kevin
2024-11-06T08:17:30Z

> From: Liu, Yi L <yi.l.liu@intel.com>
> Sent: Monday, November 4, 2024 9:19 PM
>
> +
> + dev_pasid = domain_add_dev_pasid(domain, dev, pasid);
> + if (IS_ERR(dev_pasid))
> + return PTR_ERR(dev_pasid);
> +
> + ret = domain_setup_nested(iommu, dmar_domain, dev, pasid, old);
> + if (ret)
> + goto out_remove_dev_pasid;
> +
> + domain_remove_dev_pasid(old, dev, pasid);
> +

forgot one thing. Why not required to create a debugfs entry for
nested dev_pasid?