linux-kernel - Re: [PATCH v2 00/10] iommu/vt-d: Bounce buffer for untrusted devices

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Date:   Fri, 29 Mar 2019 10:33:02 +0800
From:   Lu Baolu <baolu.lu@...ux.intel.com>
To:     Christoph Hellwig <hch@...radead.org>
Cc:     baolu.lu@...ux.intel.com, David Woodhouse <dwmw2@...radead.org>,
        Joerg Roedel <joro@...tes.org>, ashok.raj@...el.com,
        jacob.jun.pan@...el.com, alan.cox@...el.com, kevin.tian@...el.com,
        mika.westerberg@...ux.intel.com, pengfei.xu@...el.com,
        iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 00/10] iommu/vt-d: Bounce buffer for untrusted devices

Hi,

On 3/29/19 12:11 AM, Christoph Hellwig wrote:
> On Thu, Mar 28, 2019 at 02:33:04PM +0800, Lu Baolu wrote:
>> For the swiotlb APIs, I am thinking about keeping current APIs untouched
>> and adding below new ones for bounce page.
> 
> In the lon run I'd like tow avoid duplicate APIs, especially as the
> current low-level swiotlb APIs only two callers.  But please go ahead
> with the new APIs for now, I will try to see if we can do something
> on top later.
> 

Sure.

Best regards,
Lu Baolu