Subject: Re: [Qemu-devel] security implications of caching with virtio pmem
 (was Re: [PATCH v3 0/5] kvm "virtio pmem" device)
To:     Dave Chinner <david@fromorbit.com>,
        Pankaj Gupta <pagupta@redhat.com>
Cc:     "Michael S. Tsirkin" <mst@redhat.com>, dchinner@redhat.com,
        jack@suse.cz, kvm@vger.kernel.org, linux-nvdimm@ml01.01.org,
        jasowang@redhat.com, qemu-devel@nongnu.org,
        virtualization@lists.linux-foundation.org,
        adilger kernel <adilger.kernel@dilger.ca>, zwisler@kernel.org,
        Andrea Arcangeli <aarcange@redhat.com>,
        dave jiang <dave.jiang@intel.com>,
        darrick wong <darrick.wong@oracle.com>,
        vishal l verma <vishal.l.verma@intel.com>,
        willy@infradead.org, hch@infradead.org, linux-acpi@vger.kernel.org,
        jmoyer@redhat.com, nilal@redhat.com, riel@surriel.com,
        stefanha@redhat.com, imammedo@redhat.com,
        dan j williams <dan.j.williams@intel.com>,
        lcapitulino@redhat.com, kwolf@redhat.com,
        linux-ext4@vger.kernel.org, tytso@mit.edu,
        xiaoguangrong eric <xiaoguangrong.eric@gmail.com>,
        rjw@rjwysocki.net, linux-kernel@vger.kernel.org,
        linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org,
        pbonzini@redhat.com
References: <20190109144736.17452-1-pagupta@redhat.com>
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From:   David Hildenbrand <david@redhat.com>
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Message-ID: <b2be7796-9dee-b9fd-87e5-1ae570aa7db6@redhat.com>
Date:   Mon, 11 Feb 2019 23:58:15 +0100
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On 11.02.19 23:29, Dave Chinner wrote:
> On Mon, Feb 11, 2019 at 02:29:46AM -0500, Pankaj Gupta wrote:
>> Hello Dave,
>> Are we okay with this?
> 
> Sure.
> 
> I'm not sure I agree with all the analysis presented, but, well, I
> haven't looked any deeper because I'm tired of being shouted at and
> being called argumentative for daring to ask hard questions about
> this topic....

I think if you have concerns, they should definitely be discussed.
Making people frustrated that review code is not what we want. Not at all.

I suggest that Pankaj properly documents what we found out so far about
security concerns and properly describes intended use cases and answers
other questions you had in the cover letter / documentation of the
follow up series.

Thanks Dave!

> 
> Cheers,
> 
> Dave.
> 


-- 

Thanks,

David / dhildenb