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Date:   Wed, 15 Jun 2022 08:29:52 +0200
From:   Christoph Hellwig <hch@lst.de>
To:     "Tian, Kevin" <kevin.tian@intel.com>
Cc:     Christoph Hellwig <hch@lst.de>,
        Kirti Wankhede <kwankhede@nvidia.com>,
        Tony Krowiak <akrowiak@linux.ibm.com>,
        Halil Pasic <pasic@linux.ibm.com>,
        Jason Herne <jjherne@linux.ibm.com>,
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        <intel-gvt-dev@lists.freedesktop.org>,
        Jason Gunthorpe <jgg@nvidia.com>,
        "kvm@vger.kernel.org" <kvm@vger.kernel.org>
Subject: Re: [PATCH 13/13] vfio/mdev: add mdev available instance checking
 to the core
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On Tue, Jun 14, 2022 at 10:32:11AM +0000, Tian, Kevin wrote:
> > Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
> > [count instances per-parent instead of per-type]
> 
> per-parent counting works only if the parent doesn't have overlapping
> instances between types. This is probably worth a clarification in doc.

Yes.  Two cases right now just have a single type, and the third wants
this per-parent counting.  The original patch from Jason actually got
this wrong.