Date: Sun, 07 Mar 2010 09:59:07 -0800 From: David Ehrmann <ehrmann@gmail.com> To: Norikatsu Shigemura <nork@FreeBSD.org> Cc: freebsd-current@freebsd.org, Julian Elischer <julian@elischer.org> Subject: Re: Core i5 AES acceleration Message-ID: <4B93E96B.8090002@gmail.com> In-Reply-To: <20100307184422.7007747d.nork@FreeBSD.org> References: <4B934015.8000908@gmail.com> <4B934354.4030002@elischer.org> <20100307184422.7007747d.nork@FreeBSD.org>
next in thread | previous in thread | raw e-mail | index | archive | help
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@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.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?4B93E96B.8090002>