Re: [Xen-devel] [PATCH v2 0/4] x86/pvh: implement iommu_inclusive_mapping for PVH Dom0

[Roger Pau Monne <roger.pau@xxxxxxxxxx>]

On Thu, Aug 17, 2017 at 03:10:44AM +0000, Tian, Kevin wrote:
> > From: Roger Pau Monne
> > Sent: Saturday, August 12, 2017 12:43 AM
> > 
> > Hello,
> > 
> > Currently iommu_inclusive_mapping is not working for PVH Dom0, this
> 
> not working for all platforms or only older boxes? The subject indicates
> the former while the later description seems the latter...

It would be probably best to write it as:

"Currently iommu_inclusive_mapping is not implemented for PVH Dom0",
rather than "not working".

iommu_inclusive_mapping is only used when !need_iommu(d), and PVH Dom0
requires an iommu, so this condition is never going to be true.

Roger.

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