linux-kernel - Re: [PATCH v3 0/2] kvm: arm/arm64: Fixes for race conditions

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Message-ID: <20170516132904.GD5259@cbox>
Date:   Tue, 16 May 2017 15:29:04 +0200
From:   Christoffer Dall <cdall@...aro.org>
To:     Suzuki K Poulose <Suzuki.Poulose@....com>
Cc:     christoffer.dall@...aro.org, agraf@...e.de, andreyknvl@...gle.com,
        marc.zyngier@....com, mark.rutland@....com, pbonzini@...hat.com,
        rkrcmar@...hat.com, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, kvmarm@...ts.cs.columbia.edu,
        kvm@...r.kernel.org
Subject: Re: [PATCH v3 0/2] kvm: arm/arm64: Fixes for race conditions

On Tue, May 16, 2017 at 11:01:54AM +0100, Suzuki K Poulose wrote:
> On 16/05/17 10:53, Christoffer Dall wrote:
> >On Tue, May 16, 2017 at 10:34:53AM +0100, Suzuki K Poulose wrote:
> >>The patches fixes race conditions in stage2 pgd accesses.
> >>
> >>Patch 1 is a fix up for the patch which has already been pushed to
> >>kvmarm/master.
> >>
> >>Patch 2 fixes a case where stage2 PGD could be free'd when we release
> >>the kvm->mmu_lock to prevent VCPU starvation.
> >>
> >>Applies on kvmarm/master tree
> >
> >Thanks for the rebase and fix.
> >
> >Applied to master, and for both patches::
> >
> >Reviewed-by: Christoffer Dall <cdall@...aro.org>
> >
> 
> Thanks, I think these fixes needs to go to stable as well. I will wait for
> these to hit mainline and then send a back port.

Agreed, I already added the cc to stable when applying them, so I think
you'll see the report from the stable folks for the parts that don't
apply and can do the backport then.

Thanks,
-Christoffer