Re: [PATCH v8 2/5] iommu: Add new iommu op to get iommu hardware information

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On Thu, Aug 17, 2023 at 07:24:44AM +0000, Tian, Kevin wrote:
> 
> > From: Liu, Yi L <yi.l.liu@xxxxxxxxx>
> > Sent: Wednesday, August 16, 2023 8:14 PM
> >
> > Different IOMMU hardware would have different hardware information. So
> > the
> > information reported differs as well. To let the external user understand
> > the difference. enum iommu_hw_info_type is defined. For the iommu
> 
> s/difference. enum/difference, enum/
> 
> > + * @hw_info: IOMMU hardware information. The type of the returned data
> > is
> > + *           marked by the output type of this op. Type is one of
> > + *           enum iommu_hw_info_type defined in
> > include/uapi/linux/iommufd.h.
> > + *           The drivers that support this op should define a unique type
> > + *           in include/uapi/linux/iommufd.h. The data buffer returned by this
> > + *           op is allocated in the IOMMU driver and the caller should free it
> > + *           after use. Return the data buffer if success, or ERR_PTR on
> > + *           failure.
> 
> simplified as:
> 
>  @hw_info: report iommu hardware information. The data buffer returned by
>            this op is allocated in the iommu driver and freed by the caller
>            after use. The information type is one of enum iommu_hw_info_type
>            defined in include/uapi/linux/iommufd.h.
> 
> Reviewed-by: Kevin Tian <kevin.tian@xxxxxxxxx>

Done. Thanks!



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