linux-kernel - Re: [PATCH net V2 0/4] Fix various issue of vhost

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Date:   Wed, 12 Dec 2018 15:31:34 -0800 (PST)
From:   David Miller <davem@...emloft.net>
To:     jasowang@...hat.com
Cc:     mst@...hat.com, kvm@...r.kernel.org,
        virtualization@...ts.linux-foundation.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH net V2 0/4] Fix various issue of vhost

From: Jason Wang <jasowang@...hat.com>
Date: Wed, 12 Dec 2018 18:08:15 +0800

> This series tries to fix various issues of vhost:
> 
> - Patch 1 adds a missing write barrier between used idx updating and
>   logging.
> - Patch 2-3 brings back the protection of device IOTLB through vq
>   mutex, this fixes possible use after free in device IOTLB entries.
> - Patch 4-7 fixes the diry page logging when device IOTLB is
>   enabled. We should done through GPA instead of GIOVA, this was done
>   through intorudce HVA->GPA reverse mapping and convert HVA to GPA
>   during logging dirty pages.
> 
> Please consider them for -stable.
> 
> Thanks
> 
> Changes from V1:
> - silent compiler warning for 32bit.
> - use mutex_trylock() on slowpath instead of mutex_lock() even on fast
>   path.

Hello Jason.

Look like Michael wants you to split out patch #4 and target
net-next with it.

So please do that and respin the first 3 patches here with Michael's
ACKs.

Thanks.