Messages in this thread | | | From | Adam Jones <> | Subject | Re: kernel: padlock: VIA PadLock not detected. | Date | Tue, 23 May 2006 20:41:19 +0100 |
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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
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