> From: Lu Baolu <[email protected]>
> Sent: Tuesday, June 14, 2022 11:44 AM
>
> This allows the upper layers to set a domain to a PASID of a device
> if the PASID feature is supported by the IOMMU hardware. The typical
> use cases are, for example, kernel DMA with PASID and hardware
> assisted mediated device drivers.
>
why is it not part of the series for those use cases? There is no consumer
of added callbacks in this patch...
> +/* PCI domain-subdevice relationship */
> +struct subdev_domain_info {
> + struct list_head link_domain; /* link to domain siblings */
> + struct device *dev; /* physical device derived from */
> + ioasid_t pasid; /* PASID on physical device */
> +};
> +
It's not subdev. Just dev+pasid in iommu's context.
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