Re: Katmai/PIII support

David Taylor (linux-mail@xfiles.nildram.co.uk)
Thu, 4 Feb 1999 17:33:58 +0000 (GMT)

Yeah, if it had to run through a system call, there wouldn't be very much
point in it.. You could edit the system call to return a correctly
formatted random number each time it was called if you wanted :-)

David Taylor
E-Mail: dtaylor@nildram.co.uk.spam
ICQ: 268004
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On Thu, 4 Feb 1999, 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.
>
> -- mingo
>
>
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