From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
To: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Cc: Julien Grall <julien.grall@linaro.org>, <ian.campbell@citrix.com>,
<patches@linaro.org>, <linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>, <xen-devel@lists.xen.org>,
<konrad.wilk@oracle.com>
Subject: Re: [PATCH v2] xen/arm: disable cpuidle and cpufreq when linux is running as dom0
Date: Sun, 21 Jul 2013 16:38:43 +0100 [thread overview]
Message-ID: <alpine.DEB.2.02.1307211638260.4893@kaball.uk.xensource.com> (raw)
In-Reply-To: <alpine.DEB.2.02.1307211508520.4893@kaball.uk.xensource.com>
On Sun, 21 Jul 2013, Stefano Stabellini wrote:
> On Fri, 19 Jul 2013, Julien Grall wrote:
> > When linux is running as dom0, Xen doesn't show the physical cpu but a
> > virtual CPU.
> > On some ARM SOC (for instance the exynos 5250), linux registers callbacks
> > for cpuidle and cpufreq. When these callbacks are called, they will modify
> > directly the physical cpu not the virtual one. It can impact the whole board
> > instead of only dom0.
> >
> > Signed-off-by: Julien Grall <julien.grall@linaro.org>
> >
>
> Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
I added the patch to my queue
prev parent reply other threads:[~2013-07-21 15:38 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-19 11:27 Julien Grall
2013-07-19 13:50 ` Konrad Rzeszutek Wilk
2013-07-21 14:09 ` Stefano Stabellini
2013-07-21 15:38 ` Stefano Stabellini [this message]
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