From: Scott Wood <scottwood@freescale.com>
To: Yoder Stuart-B08248 <B08248@freescale.com>
Cc: "agraf@suse.de" <agraf@suse.de>,
"kvm-ppc@vger.kernel.org" <kvm-ppc@vger.kernel.org>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>
Subject: Re: [PATCH] KVM: PPC: emulate dcbst
Date: Wed, 10 Apr 2013 16:03:33 +0000 [thread overview]
Message-ID: <1365609813.8381.4@snotra> (raw)
In-Reply-To: <9F6FE96B71CF29479FF1CDC8046E15035A6DD9@039-SN1MPN1-003.039d.mgd.msft.net> (from B08248@freescale.com on Tue Apr 9 22:20:41 2013)
On 04/09/2013 10:20:41 PM, Yoder Stuart-B08248 wrote:
> > -----Original Message-----
> > From: Yoder Stuart-B08248
> > Sent: Tuesday, April 09, 2013 3:36 PM
> > To: agraf@suse.de
> > Cc: kvm-ppc@vger.kernel.org; kvm@vger.kernel.org; Yoder
> Stuart-B08248
> > Subject: [PATCH] KVM: PPC: emulate dcbst
> >
> > From: Stuart Yoder <stuart.yoder@freescale.com>
> >
> > Signed-off-by: Stuart Yoder <stuart.yoder@freescale.com>
> > ---
>
> One thing I should have mentioned...without this patch
> on the host 64-bit guest kernels are currently broken
> when using -smp. Not sure how far back things are broken,
> the oldest kernel I had a chance to try was like 3.8-rc3.
It's due to dcbst being used on the spin table, which is treated as
emulated MMIO under QEMU.
-Scott
WARNING: multiple messages have this Message-ID (diff)
From: Scott Wood <scottwood@freescale.com>
To: Yoder Stuart-B08248 <B08248@freescale.com>
Cc: "agraf@suse.de" <agraf@suse.de>,
"kvm-ppc@vger.kernel.org" <kvm-ppc@vger.kernel.org>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>
Subject: Re: [PATCH] KVM: PPC: emulate dcbst
Date: Wed, 10 Apr 2013 11:03:33 -0500 [thread overview]
Message-ID: <1365609813.8381.4@snotra> (raw)
In-Reply-To: <9F6FE96B71CF29479FF1CDC8046E15035A6DD9@039-SN1MPN1-003.039d.mgd.msft.net> (from B08248@freescale.com on Tue Apr 9 22:20:41 2013)
On 04/09/2013 10:20:41 PM, Yoder Stuart-B08248 wrote:
> > -----Original Message-----
> > From: Yoder Stuart-B08248
> > Sent: Tuesday, April 09, 2013 3:36 PM
> > To: agraf@suse.de
> > Cc: kvm-ppc@vger.kernel.org; kvm@vger.kernel.org; Yoder
> Stuart-B08248
> > Subject: [PATCH] KVM: PPC: emulate dcbst
> >
> > From: Stuart Yoder <stuart.yoder@freescale.com>
> >
> > Signed-off-by: Stuart Yoder <stuart.yoder@freescale.com>
> > ---
>
> One thing I should have mentioned...without this patch
> on the host 64-bit guest kernels are currently broken
> when using -smp. Not sure how far back things are broken,
> the oldest kernel I had a chance to try was like 3.8-rc3.
It's due to dcbst being used on the spin table, which is treated as
emulated MMIO under QEMU.
-Scott
next prev parent reply other threads:[~2013-04-10 16:03 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-09 20:36 [PATCH] KVM: PPC: emulate dcbst Stuart Yoder
2013-04-09 20:36 ` Stuart Yoder
2013-04-10 3:20 ` Yoder Stuart-B08248
2013-04-10 16:03 ` Scott Wood [this message]
2013-04-10 16:03 ` Scott Wood
2013-04-10 22:02 ` Alexander Graf
2013-04-10 22:02 ` Alexander Graf
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