From: Christoph Hellwig <hch@infradead.org>
To: Lu Baolu <baolu.lu@linux.intel.com>
Cc: David Woodhouse <dwmw2@infradead.org>,
Joerg Roedel <joro@8bytes.org>,
ashok.raj@intel.com, jacob.jun.pan@intel.com, alan.cox@intel.com,
kevin.tian@intel.com, mika.westerberg@linux.intel.com,
pengfei.xu@intel.com, iommu@lists.linux-foundation.org,
linux-kernel@vger.kernel.org,
Jacob Pan <jacob.jun.pan@linux.intel.com>
Subject: Re: [PATCH v1 4/9] iommu/vt-d: Add bounce buffer API for domain map/unmap
Date: Tue, 12 Mar 2019 09:38:45 -0700 [thread overview]
Message-ID: <20190312163845.GA13141@infradead.org> (raw)
In-Reply-To: <20190312060005.12189-5-baolu.lu@linux.intel.com>
On Tue, Mar 12, 2019 at 02:00:00PM +0800, Lu Baolu wrote:
> This adds the APIs for bounce buffer specified domain
> map() and unmap(). The start and end partial pages will
> be mapped with bounce buffered pages instead. This will
> enhance the security of DMA buffer by isolating the DMA
> attacks from malicious devices.
Please reuse the swiotlb code instead of reinventing it.
next prev parent reply other threads:[~2019-03-12 16:38 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-12 5:59 [PATCH v1 0/9] Bounce buffer for untrusted devices Lu Baolu
2019-03-12 5:59 ` [PATCH v1 1/9] iommu/vt-d: Add trace events for domain map/unmap Lu Baolu
2019-03-12 5:59 ` [PATCH v1 2/9] iommu/vt-d: Add helpers for domain mapping/unmapping Lu Baolu
2019-03-12 5:59 ` [PATCH v1 3/9] iommu/vt-d: Add address walk helper Lu Baolu
[not found] ` <20190312060005.12189-1-baolu.lu-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2019-03-12 6:00 ` [PATCH v1 4/9] iommu/vt-d: Add bounce buffer API for domain map/unmap Lu Baolu
2019-03-12 16:38 ` Christoph Hellwig [this message]
2019-03-13 2:04 ` Lu Baolu
[not found] ` <e653341d-e001-7262-740b-2262842be06d-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2019-03-13 2:31 ` Lu Baolu
[not found] ` <c9fe7879-569e-b4f4-d6ec-47ab7e6fd443-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2019-03-13 16:10 ` Christoph Hellwig
[not found] ` <20190313161029.GA23513-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2019-03-14 1:01 ` Lu Baolu
2019-03-19 7:59 ` Lu Baolu
2019-03-19 11:21 ` Robin Murphy
2019-03-12 6:00 ` [PATCH v1 5/9] iommu/vt-d: Add bounce buffer API for dma sync Lu Baolu
2019-03-12 6:00 ` [PATCH v1 6/9] iommu/vt-d: Check whether device requires bounce buffer Lu Baolu
2019-03-12 6:00 ` [PATCH v1 7/9] iommu/vt-d: Add dma sync ops for untrusted devices Lu Baolu
2019-03-12 6:00 ` [PATCH v1 8/9] iommu/vt-d: Flush IOTLB for untrusted device in time Lu Baolu
2019-03-12 6:00 ` [PATCH v1 9/9] iommu/vt-d: Use bounce buffer for untrusted devices Lu Baolu
2019-03-12 6:07 ` [PATCH v1 0/9] Bounce " Lu Baolu
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