linux-kernel - Re: [PATCH 2/2] powercap/rapl: reduce warning level

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Message-ID: <1941240.Fj2gxPBr2R@vostro.rjw.lan>
Date:	Thu, 16 Jun 2016 16:01:13 +0200
From:	"Rafael J. Wysocki" <rjw@...ysocki.net>
To:	Jacob Pan <jacob.jun.pan@...ux.intel.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Rafael Wysocki <rafael.j.wysocki@...el.com>,
	Linux PM <linux-pm@...r.kernel.org>,
	Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
	Prarit Bhargava <prarit@...hat.com>
Subject: Re: [PATCH 2/2] powercap/rapl: reduce warning level

On Monday, May 23, 2016 09:45:43 AM Jacob Pan wrote:
> Since RAPL interface is not architectual, its enumeration depends on poking
> MSRs instead of using CPUID method.
> 
> In KVM guest, RAPL driver probe will fail and emit the following message
> for every CPU: no valid rapl domains found in package
> 
> This patch limit the warning to debug only. Still return ENODEV so that RAPL
> does not run on KVM guest.
> 
> Signed-off-by: Jacob Pan <jacob.jun.pan@...ux.intel.com>

Applied, thanks!