> This is an illusion ensured by the MMU (aside from security).
Even in places where DMA is fully warranted, IOMMU gets shoe-horned in. I don't think there's any running away from costs to be paid for security (not the least for power-efficiency reasons).
Even in places where DMA is fully warranted, IOMMU gets shoe-horned in. I don't think there's any running away from costs to be paid for security (not the least for power-efficiency reasons).