Re: [tip:perf/core] x86, tracing, perf: Add trace point for MSR accesses
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- Subject: Re: [tip:perf/core] x86, tracing, perf: Add trace point for MSR accesses
- From: Andi Kleen <ak@xxxxxxxxxxxxxxx>
- Date: Fri, 4 Dec 2015 14:18:56 -0800
- Cc: Ingo Molnar <mingo@xxxxxxxxxx>, linux-tip-commits@xxxxxxxxxxxxxxx, vincent.weaver@xxxxxxxxx, eranian@xxxxxxxxxx, hpa@xxxxxxxxx, efault@xxxxxx, peterz@xxxxxxxxxxxxx, jolsa@xxxxxxxxxx, torvalds@xxxxxxxxxxxxxxxxxxxx, tglx@xxxxxxxxxxxxx, rostedt@xxxxxxxxxxx, acme@xxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx
- In-reply-to: <20151204183017.GO21177@pd.tnic>
- User-agent: Mutt/1.5.24 (2015-08-30)
On Fri, Dec 04, 2015 at 07:30:17PM +0100, Borislav Petkov wrote:
> On Fri, Dec 04, 2015 at 10:28:02AM -0800, Andi Kleen wrote:
> > Because making them GPL would prevent any non GPL driver from
> > using MSRs with tracing compiled in, which doesn't make any sense.
>
> I know what EXPORT_SYMBOL_GPL means - I'm questioning the need of making
> them available to non-GPL drivers.
MSRs are not a GPLed facility.
-Andi
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