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

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Message-ID: <cc5e477f-b452-ce6f-d412-46ff8a4cfa5d@redhat.com>
Date:   Thu, 13 Dec 2018 10:42:02 +0800
From:   Jason Wang <jasowang@...hat.com>
To:     David Miller <davem@...emloft.net>
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


On 2018/12/13 上午7:31, David Miller wrote:
> 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.


Yes, will send V3.

Thanks