Messages in this thread | | | Date | Tue, 12 Mar 2019 09:38:45 -0700 | From | Christoph Hellwig <> | Subject | Re: [PATCH v1 4/9] iommu/vt-d: Add bounce buffer API for domain map/unmap |
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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.
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