Date: Sat, 4 Feb 2012 14:49:52 +0200 From: Konstantin Belousov <kostikbel@gmail.com> To: Mario Fleischmann <mario@gurgelmail.com> Cc: amd64@freebsd.org Subject: Re: aesni module with AMD CPUs? Message-ID: <20120204124952.GK3283@deviant.kiev.zoral.com.ua> In-Reply-To: <4F2CFFC3.30909@gurgelmail.com> References: <4F2CFFC3.30909@gurgelmail.com>
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[-- Attachment #1 --] On Sat, Feb 04, 2012 at 10:52:03AM +0100, Mario Fleischmann wrote: > Hi Konstantin, > I hope you don't mind me writing to you directly, but I'm having a hard > time finding information on Google. You would get much higher chances of getting response if you post on the public list Cc:ing corresponding developer. Since the question seemingly not contain any sensitive information, and discussion may be useful to the wider audience, I added appropriate ml to Cc:. > > I'm currently in the market for a new system, and I need AES-NI > acceleration with FreeBSD 9.0. I'd like to buy an AMD-FX 4100 CPU, which > supports the AES-NI instruction set. Do you have a reference to the CPU datasheet or programming manual ? > > What I'd like to know is: Does the aesni driver in FreeBSD also support > AMD CPUs? The man page explicitly states the driver is for Intel CPUs, > but since the AES-NI instruction set is licensed by AMD, I think it > should also work with those CPUs? The aesni(4) driver attaches on any CPU that reports AESNI support through the CPUID instruction. If amd implemented bit-to-bit compatible AESNI instruction set and report the capability in CPUID, driver shall just work. I never saw any bulldozer live, so this is the most I can answer to you. > > > A reply would be greatly appreciated, > > Best Regards, > Mario [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (FreeBSD) iEYEARECAAYFAk8tKXAACgkQC3+MBN1Mb4jCbwCgopaSOFCWRkGGRiDSpUJMsLuS Y9QAoOA3PBKdMncjpHyhkwKSuWAR5Xpk =x/9W -----END PGP SIGNATURE-----help
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