Re: Core i5 AES acceleration

Am Sunday 07 March 2010 18:59:07 schrieb David Ehrmann:
> On 3/7/10 1:44 AM, Norikatsu Shigemura wrote:
> > Hi Devid and Julian.
> >
> > On Sat, 06 Mar 2010 22:10:28 -0800
> >
> > Julian Elischer<julian_at_elischer.org>  wrote:
> >> David Ehrmann wrote:
> >>> Does FreeBSD currently support cryptographic acceleration for AES on
> >>> the Core i5 CPU?  I searched, but couldn't find anything, and the
> >>> crypto(4) manpage only lists these divers in "see also:"
> >>
> >> no, but if you write a driver for it we will... :-)
> >> (most things in open source happen because someone needs it.)
> >
> > 	I found Linux's code: http://lwn.net/Articles/311094/
> > 	I think that it looks too easy, maybe, we should implement aesni(4)
> > 	like padlock(4).
> 
> I was thinking that if I did do it, I'd start with padlock as a base.
> It looks like there are maybe 6 new opcodes.  Maybe we could ask the
> contributor of the Linux code (an Intel employee) if he'd be willing to
> also release the code under a BSD license.
> 
> My problem is that I don't have a Core i5 system--I was asking because
> it's an option for my new system--and I'm far from an x86 assembly expert.

I am willing to test - I have a p660

Christof
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