Messages in this thread | | | From | Casey Leedom <> | Subject | Re: DMA error when sg->offset value is greater than PAGE_SIZE in Intel IOMMU | Date | Wed, 27 Sep 2017 17:30:08 +0000 |
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| From: Robin Murphy <robin.murphy@arm.com> | Sent: Wednesday, September 27, 2017 10:18 AM | | From my experience, in general terms each scatterlist segment | represents some contiguous quantity of pages, of which sg->page is the | first, while sg->length and sg->offset describe the specific bounds of | that segment's data. ...
Okay, thanks Robin. That'll help me in my reviews of your and Ashok's suggested changes to the Intel I/O MMU __domain_mapping() routine.
Casey
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