> > He demonstrated the usage of his code in one of the emails he sent out > initially. Did you go over that, and what (or how many) step would you > use with the current code to do the same thing? -- So is this patch set adding layers and abstractions to help the User ? If the idea is to share some memory across multiple devices, I guess you can achieve the same by calling the map function provided by iommu module and sharing the mapped address to the 10's or 100's of devices to access the buffers. You would only need a dedicated virtual pool per IOMMU device to manage its virtual memory allocations. Hari -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>