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Add the following FAQ: ### My system's Kernel DMA Protection is off. Can DMA-remapping for a specific device be turned on? Yes. DMA remapping for a specific device can be turned on independent from Kernel DMA Protection. (i.e. if the driver opts in and VT-d is turned on, then DMA remapping will be enabled for the devices driver, even if Kernel DMA Protection is off). Kernel DMA Protection is a policy that allows/disallows devices to perform DMA, based on their remapping state/capabilities.