RE: [PATCH v2 22/22] intel_iommu: modify x-scalable-mode to be string option

[Liu, Yi L]

> From:  Peter Xu < address@hidden>
> Sent: Friday, April 3, 2020 10:49 PM
> To: Liu, Yi L <address@hidden>
> Subject: Re: [PATCH v2 22/22] intel_iommu: modify x-scalable-mode to be string
> option
> 
> On Sun, Mar 29, 2020 at 09:25:01PM -0700, Liu Yi L wrote:
> > Intel VT-d 3.0 introduces scalable mode, and it has a bunch of
> > capabilities related to scalable mode translation, thus there are multiple
> combinations.
> > While this vIOMMU implementation wants simplify it for user by
> > providing typical combinations. User could config it by
> > "x-scalable-mode" option. The usage is as below:
> >
> > "-device intel-iommu,x-scalable-mode=["legacy"|"modern"|"off"]"
> >
> >  - "legacy": gives support for SL page table
> >  - "modern": gives support for FL page table, pasid, virtual command
> >  - "off": no scalable mode support
> >  -  if not configured, means no scalable mode support, if not proper
> >     configured, will throw error
> >
> > Note: this patch is supposed to be merged when  the whole vSVA patch
> > series were merged.
> >
> > Cc: Kevin Tian <address@hidden>
> > Cc: Jacob Pan <address@hidden>
> > Cc: Peter Xu <address@hidden>
> > Cc: Yi Sun <address@hidden>
> > Cc: Paolo Bonzini <address@hidden>
> > Cc: Richard Henderson <address@hidden>
> > Cc: Eduardo Habkost <address@hidden>
> > Signed-off-by: Liu Yi L <address@hidden>
> > Signed-off-by: Yi Sun <address@hidden>
> 
> Reviewed-by: Peter Xu <address@hidden>
thanks for your help. :-)

Regards,
Yi Liu