[dm-crypt] SATA Hardware encryption AES support

Milan Broz gmazyland at gmail.com
Thu Nov 28 14:39:22 CET 2013


On 11/28/2013 01:18 PM, Pelle Svensson wrote:
> Hi,
> 
> Marvel 88SE9230 SATA controller has AES hardware encryption built-in.
> 
> - Will Linux LUKS make use of this if there is support in the kernel driver?
> - If it can't, dose LUKS/dm-crypt by design has any support this type hardware, i.e. can I write a kernel driver?

Short answer - no (for dmcrypt/LUKS).

Encryption on this level is below the dmcrypt layer operates.

So if you need to use this hw layer, you have to modify SATA layer drivers, not dmcrypt.

Milan


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