Siim Põder <s...@p6drad-teel.net> writes: > Are you sure crypto accelerators allow DMA from user memory? I don't > know for sure either, but I would suspect that they would work like any > other device: copy to kernel, DMA to device, DMA back to kernel, copy to > user.
Devices don't care if memory belongs to user or kernel. Unless the kernel restricts the device with an IOMMU; but that is still unusual when it comes to PC's. /Benny
