From: Adam Jones <adam@yggdrasl.demon.co.uk>
To: linux-kernel@vger.kernel.org
Subject: Re: kernel: padlock: VIA PadLock not detected.
Date: Tue, 23 May 2006 20:41:19 +0100 [thread overview]
Message-ID: <adam.20060523194119$0db7@samael.haus> (raw)
In-Reply-To: 20060523164634.GC9829@dantooine
In a futile gesture against entropy, markus reichelt wrote:
> I get the following message on a Nehemiah system. Any ideas about
> that?
> kernel: CPU0: Centaur VIA Nehemiah stepping 01
> kernel: padlock: VIA PadLock not detected
>
> cat /proc/cpuinfo
[...]
> flags : fpu de tsc msr cx8 mtrr pge cmov mmx fxsr sse
> fxsr_opt
I believe the padlock support was only added in later steppings of the
Nehemiah core. My Nehemiah system here supports it:
cat /proc/cpuinfo
processor : 0
vendor_id : CentaurHauls
cpu family : 6
model : 9
model name : VIA Nehemiah
stepping : 8
cpu MHz : 997.000
cache size : 64 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr cx8 sep mtrr pge cmov pat mmx fxsr sse rng rng_en ace ace_en
bogomips : 2007.25
(Note the rng* and ace* flags)
According to a VIA press release here:
http://www.linuxdevices.com/sponsors/SP2782600871-NS4520757633.html
only stepping 8 or later CPUs support these instructions.
--
Adam Jones (adam@yggdrasl.demon.co.uk)(http://www.yggdrasl.demon.co.uk/)
.oO("It's not like it's sigfile fodder or anything..." )
PGP public key: http://www.yggdrasl.demon.co.uk/pubkey.asc
prev parent reply other threads:[~2006-05-23 20:00 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-05-23 16:46 kernel: padlock: VIA PadLock not detected markus reichelt
2006-05-23 19:41 ` Adam Jones [this message]
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