From: Leo Yan <leo.yan@linaro.org>
To: Marc Zyngier <marc.zyngier@arm.com>
Cc: stable@vger.kernel.org,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
John Stultz <john.stultz@linaro.org>,
Dmitry Shmidt <dimitrysh@google.com>,
Mark Rutland <Mark.Rutland@arm.com>
Subject: Re: [RESEND PATCH] arm64: arch_timer: Workaround for Cortex-A73 erratum 858921
Date: Fri, 1 Sep 2017 10:01:40 +0800 [thread overview]
Message-ID: <20170901020140.GB516@leoy-ThinkPad-T440> (raw)
In-Reply-To: <74f476e9-a71f-9294-6c19-56cf967f1e2f@arm.com>
On Thu, Aug 31, 2017 at 09:30:29AM +0100, Marc Zyngier wrote:
> Hi Leo,
>
> On 31/08/17 01:30, Leo Yan wrote:
> > Hi Marc,
> >
> > On Wed, Aug 30, 2017 at 09:46:26AM +0100, Marc Zyngier wrote:
> >
> > [...]
> >
> >> Then these systems are completely broken if they use a Cortex-A73.
> >> Either they run mainline (which will be just fine), or they get a fully
> >> backported workaround infrastructure.
> >
> > Yeah, we should do right thing.
> >
> > Have ARM kernel team ported this patch series (or is in planning)? I
> > also will check with Linaro kernel team as well, I just want to avoid
> > duplicate efforts if these patches have been back ported. Otherwise, I
> > will backport the patch series.
> I have no plan to backport this to older kernels. This is new HW that
> didn't exist (or wasn't publicly available) when 4.4/4.9 were released,
> so 4.12 is effectively the first kernel I intend to support this erratum on.
>
> If you have an interest in running older kernels on this HW, you'll have
> to do the backport yourself. Please make sure you Cc both Mark and
> myself on the patches.
Sure, will do this.
Thanks,
Leo Yan
prev parent reply other threads:[~2017-09-01 2:01 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-30 5:06 [RESEND PATCH] arm64: arch_timer: Workaround for Cortex-A73 erratum 858921 Leo Yan
2017-08-30 6:03 ` Greg Kroah-Hartman
2017-08-30 6:12 ` Leo Yan
2017-08-30 8:02 ` Marc Zyngier
2017-08-30 8:20 ` Leo Yan
2017-08-30 8:46 ` Marc Zyngier
2017-08-31 0:30 ` Leo Yan
2017-08-31 8:30 ` Marc Zyngier
2017-09-01 2:01 ` Leo Yan [this message]
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