Re: [Xen-devel] [PATCH V3 6/8] iommu: Add of_xlate callback

[Jan Beulich <jbeulich@xxxxxxxx>]

On 20.08.2019 20:09, Oleksandr Tyshchenko wrote:
> --- a/xen/include/xen/iommu.h
> +++ b/xen/include/xen/iommu.h
> @@ -240,6 +240,16 @@ struct iommu_ops {
>       int __must_check (*iotlb_flush_all)(struct domain *d);
>       int (*get_reserved_device_memory)(iommu_grdm_t *, void *);
>       void (*dump_p2m_table)(struct domain *d);
> +
> +#ifdef CONFIG_HAS_DEVICE_TREE
> +    /*
> +     * All IOMMU drivers which support generic IOMMU DT bindings should use
> +     * this callback. This is a way for the framework to provide the driver
> +     * with DT IOMMU specifier which describes the IOMMU master interfaces of
> +     * that device (device IDs, etc).
> +     */
> +    int (*of_xlate)(device_t *dev, struct dt_phandle_args *args);
> +#endif
>   };
I think this should be folded into the first patch using it. Doing
so may also answer my question of what "of" here stands for.

Jan

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