[Intel-gfx] [PATCH 09/10] vfio: Make vfio_container optionally compiled

Jason Gunthorpe jgg at nvidia.com
Tue Nov 1 12:56:09 UTC 2022


On Tue, Nov 01, 2022 at 08:41:56AM +0000, Tian, Kevin wrote:
> > From: Jason Gunthorpe <jgg at nvidia.com>
> > Sent: Wednesday, October 26, 2022 2:51 AM
> > 
> >  if VFIO
> > +config VFIO_CONTAINER
> > +	bool "Support for the VFIO container /dev/vfio/vfio"
> > +	select VFIO_IOMMU_TYPE1 if MMU && (X86 || S390 || ARM ||
> > ARM64)
> > +	default y
> > +	help
> > +	  The VFIO container is the classic interface to VFIO for establishing
> > +	  mappings. If N is selected here then IOMMUFD must be used the
> 
> establishing IOMMU mappings.
> 
> s/used the manage/used to manage/

Done

> > +if VFIO_CONTAINER
> >  config VFIO_IOMMU_TYPE1
> >  	tristate
> > -	default n
> > +	default MMU && (X86 || S390 || ARM || ARM64)
> 
> there are already same conditions for selecting TYPE1 from
> VFIO_CONTAINER. what does duplicating conditions here
> bring to us?

Yah, we can leave this out - this is just the more normal way to
approach this kconfig trick, AFAICT

Thanks,
Jason


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