Re: [RFC PATCH 1/3] Documentation/x86: Add documentation for /proc/cpuinfo feature flags

[gregkh@xxxxxxxxxxxxxxxxxxx]

On Mon, Jun 15, 2020 at 06:31:50PM +0000, Luck, Tony wrote:
> > In general, this should say something along the lines that /proc/cpuinfo
> > shows features which the kernel supports.
> >
> > "For a full list of CPUID flags which the CPU supports, use
> > tools/arch/x86/tools/cpuid/cpuid"
> >
> > :-)
> 
> Dave Hansen had suggested (offline) that we add a cpuid tool to the kernel sources.
> 
> I think that's a lot of (duplicated) work for someone to maintain.  The version of this
> tool at http://www.etallen.com/cpuid.html is close to 10K lines of code.

10k is nothing, have you looked at tools/perf/ ?  :)

greg k-h