From: "Roedel, Joerg" <Joerg.Roedel@amd.com>
To: Avi Kivity <avi@redhat.com>
Cc: Joerg Roedel <joro@8bytes.org>,
Marcelo Tosatti <mtosatti@redhat.com>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 0/2 v2] perf-kvm support for SVM
Date: Mon, 17 Jan 2011 12:34:21 +0100 [thread overview]
Message-ID: <20110117113421.GC31122@amd.com> (raw)
In-Reply-To: <4D3310E3.9020909@redhat.com>
On Sun, Jan 16, 2011 at 10:38:11AM -0500, Avi Kivity wrote:
> On 01/16/2011 05:35 PM, Joerg Roedel wrote:
> > On Sun, Jan 16, 2011 at 12:49:41PM +0200, Avi Kivity wrote:
> > > On 01/14/2011 05:45 PM, Joerg Roedel wrote:
> >
> > >> here is the reworked version of the patch-set. Only patch 1/2 has
> > >> changed and now contains the real fix for the crashes that were seen and
> > >> has an updated log message.
> > >>
> > >
> > > Thanks, applied. 2.6.37 and earlier aren't affected, yes? So I'm
> > > queuing it for 2.6.38 only.
> >
> > I think the problem is there since KVM has lazy state switching. So the
> > fix in patch 1 should make it in all currently maintained stable-trees.
> >
>
> The problem is with load_gs_index(), yes? In 2.6.37 this is called
> before stgi(), so it's protected from nmi.
Ok, you are right :) So the fix is only necessary for 2.6.38.
Joerg
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Registration: Dornach, Landkr. Muenchen; Registerger. Muenchen, HRB Nr. 43632
prev parent reply other threads:[~2011-01-17 11:51 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-14 15:45 [PATCH 0/2 v2] perf-kvm support for SVM Joerg Roedel
2011-01-14 15:45 ` [PATCH 1/2] KVM: SVM: Make sure KERNEL_GS_BASE is valid when loading gs_index Joerg Roedel
2011-01-14 15:45 ` Joerg Roedel
2011-01-14 15:45 ` [PATCH 2/2] KVM: SVM: Add support for perf-kvm Joerg Roedel
2011-01-16 10:49 ` [PATCH 0/2 v2] perf-kvm support for SVM Avi Kivity
2011-01-16 15:35 ` Joerg Roedel
2011-01-16 15:38 ` Avi Kivity
2011-01-17 11:34 ` Roedel, Joerg [this message]
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