Re: Katmai/PIII support

Brian Ristuccia (brianr@osiris.978.org)
Thu, 4 Feb 1999 09:20:06 -0500

On Thu, Feb 04, 1999 at 09:08:00AM +0100, MOLNAR Ingo wrote:
>
> On Wed, 3 Feb 1999, Brian Ristuccia wrote:
>
> > Curious, can the instructions required to retrive the serial number be run
> > from userspace?
>
> i suppose so (of course only if it's not disabled). It's a variation of
> CPUID, so i guess it can be. If you think about copy-protection, you
> definitely want to 'embedd' and inline the querying in the protected
> product as much as possible, which pretty much rules out system-call based
> approaches.
>

Could it be made to cause a trap if it's run while disabled?

You know what I'm thinking :)

-- 
Brian Ristuccia
brianr@osiris.978.org
bristucc@baynetworks.com
bristucc@cs.uml.edu


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