From mboxrd@z Thu Jan  1 00:00:00 1970
From: Christoph Hellwig <hch-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
Subject: Re: [PATCH v2 00/10] iommu/vt-d: Bounce buffer for untrusted devices
Date: Tue, 26 Mar 2019 23:48:23 -0700
Message-ID: <20190327064823.GA13309@infradead.org>
References: <20190327063506.32564-1-baolu.lu@linux.intel.com>
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To: Lu Baolu <baolu.lu-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
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On Wed, Mar 27, 2019 at 02:34:56PM +0800, Lu Baolu wrote:
>   - During the v1 review cycle, we discussed the possibility
>     of reusing swiotlb code to avoid code dumplication, but
>     we found the swiotlb implementations are not ready for the
>     use of bounce page pool.
>     https://lkml.org/lkml/2019/3/19/259

So make it ready.  You too can contribute to common code.  Robin
also explicitly asked to make the bounce policy iommu-subsystem wide.