[patch v3 16/16] btrace, x86: restrict to Atom

Metzger, Markus T markus.t.metzger@intel.com
Thu Oct 4 07:51:00 GMT 2012

> -----Original Message-----
> From: Mark Kettenis [mailto:mark.kettenis@xs4all.nl]
> Sent: Monday, October 01, 2012 9:24 PM
> To: Metzger, Markus T


> > The cpuid check is simple and reliable. Anything else will be more
> > complicated and also less straight-forward to understand.
> But what if btrace support shows up for other CPUs, or if a next
> generation Atom shows up that has a different cpuid?

For every new cpu that supports branch tracing, we will test it and send out a patch adding the new cpuid. This will be part of the general enabling for new cpus, e.g. new instructions or registers.

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