linux-kernel - Re: [PATCH] intel_pstate: Fix MSR_CONFIG_TDP_x addressing in core_get_max

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Message-ID: <1741569.1V1Ap4DoMu@vostro.rjw.lan>
Date:	Sat, 09 Jul 2016 02:45:20 +0200
From:	"Rafael J. Wysocki" <rjw@...ysocki.net>
To:	Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
Cc:	Jan Kiszka <jan.kiszka@...mens.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
	Linux PM list <linux-pm@...r.kernel.org>
Subject: Re: [PATCH] intel_pstate: Fix MSR_CONFIG_TDP_x addressing in core_get_max_pstate

On Friday, July 08, 2016 12:39:07 PM Srinivas Pandruvada wrote:
> On Fri, 2016-07-08 at 20:42 +0200, Jan Kiszka wrote:
> > If MSR_CONFIG_TDP_CONTROL is locked, we currently try to address some
> > MSR 0x80000648 or so. Mask out the relevant level bits 0 and 1.
> > 
> > Found while running over the Jailhouse hypervisor which became upset
> > about this strange MSR index.
> > 
> > Signed-off-by: Jan Kiszka <jan.kiszka@...mens.com>
> Acked-by: Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>

OK

Should this go into stable?  Which series if so?

Thanks,
Rafael