Messages in this thread | | | Subject | Re: How to ensure that different peripherals getting different IOVA address in kernel? | From | Jiang Liu <> | Date | Wed, 23 Sep 2015 10:42:14 +0800 |
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On 2015/9/23 9:55, chenfeng wrote: > Hi all, > > In IOMMU architecture , how to make two different peripherals share the same page table ? > > In other words , is there a mechanism or structure to make two peripherals get completely different address. > > eg: > > peri-A、peri-B and peri-C share the same iova address 0-1G for some performance requests. > > So the A,B,C need to use the same IOVA generator to ensure this,but I don't find an architecture to make this. > > Any help will be appreciated. Hi Chenfeng, Seems IOMMU group may help you, please take a look at Documentation/vfio.txt. Thanks! Gerry
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