linux-kernel - Re: [PATCH] powercap/rapl: Do not load in virtualized environments

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Message-ID: <573C3D19.8060400@redhat.com>
Date:	Wed, 18 May 2016 05:59:53 -0400
From:	Prarit Bhargava <prarit@...hat.com>
To:	"Rafael J. Wysocki" <rafael@...nel.org>
CC:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
	Jacob Jun Pan <jacob.jun.pan@...el.com>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>
Subject: Re: [PATCH] powercap/rapl: Do not load in virtualized environments



On 05/17/2016 08:50 PM, Rafael J. Wysocki wrote:
> On Tue, May 17, 2016 at 1:34 PM, Prarit Bhargava <prarit@...hat.com> wrote:
>> intel_rapl is currently not supported in virtualized environments.  When
>> booting the warning message
>>
>> intel_rapl: no valid rapl domains found in package 0
> 
> You seem to be saying that this message is problematic for some
> reason, so why is it?

It is a loud warning message that comes up for every cpu.  The virt boot is
essentially silent *except* for the above messages.

P.