Re: [tip:perf/core] x86, tracing, perf: Add trace point for MSR accesses

From	Andi Kleen <ak@linux.intel.com>
Newsgroups	linux.kernel
Subject	Re: [tip:perf/core] x86, tracing, perf: Add trace point for MSR accesses
Date	2015-12-04 23:20 +0100
Message-ID	<qC6RP-bp-13@gated-at.bofh.it> (permalink)
References	<qB45H-ml-1@gated-at.bofh.it> <qBXlw-2ur-15@gated-at.bofh.it> <qBXvc-2xR-17@gated-at.bofh.it> <qC3hf-6hF-5@gated-at.bofh.it> <qC3qV-6kU-5@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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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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Thread

[PATCH 3/4] x86: Add trace point for MSR accesses Andi Kleen <andi@firstfloor.org> - 2015-12-02 02:10 +0100
  Re: [PATCH 3/4] x86: Add trace point for MSR accesses Steven Rostedt <rostedt@goodmis.org> - 2015-12-02 03:10 +0100
  [tip:perf/core] x86, tracing, perf:   Add trace point for MSR accesses tip-bot for Andi Kleen <tipbot@zytor.com> - 2015-12-04 13:10 +0100
    Re: [tip:perf/core] x86, tracing, perf: Add trace point for MSR  accesses Borislav Petkov <bp@alien8.de> - 2015-12-04 13:20 +0100
      Re: [tip:perf/core] x86, tracing, perf: Add trace point for MSR  accesses Andi Kleen <ak@linux.intel.com> - 2015-12-04 19:30 +0100
        Re: [tip:perf/core] x86, tracing, perf: Add trace point for MSR  accesses Borislav Petkov <bp@alien8.de> - 2015-12-04 19:40 +0100
          Re: [tip:perf/core] x86, tracing, perf: Add trace point for MSR  accesses Andi Kleen <ak@linux.intel.com> - 2015-12-04 23:20 +0100
            Re: [tip:perf/core] x86, tracing, perf: Add trace point for MSR  accesses Borislav Petkov <bp@alien8.de> - 2015-12-04 23:30 +0100
          Re: [tip:perf/core] x86, tracing, perf: Add trace point for MSR accesses "H. Peter Anvin" <hpa@zytor.com> - 2015-12-04 23:40 +0100
            Re: [tip:perf/core] x86, tracing, perf: Add trace point for MSR  accesses Borislav Petkov <bp@alien8.de> - 2015-12-04 23:50 +0100
              Re: [tip:perf/core] x86, tracing, perf: Add trace point for MSR accesses "H. Peter Anvin" <hpa@zytor.com> - 2015-12-05 00:00 +0100
  [tip:perf/core] x86, tracing, perf:   Add trace point for MSR accesses tip-bot for Andi Kleen <tipbot@zytor.com> - 2015-12-06 14:30 +0100

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