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Date:   Tue, 6 Dec 2022 23:35:31 -0800
From:   Christoph Hellwig <hch@infradead.org>
To:     Alvaro Karsz <alvaro.karsz@solid-run.com>
Cc:     virtualization@lists.linux-foundation.org,
        linux-block@vger.kernel.org, dm-devel@redhat.com,
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        Jason Wang <jasowang@redhat.com>,
        Paolo Bonzini <pbonzini@redhat.com>,
        Stefan Hajnoczi <stefanha@redhat.com>,
        Jens Axboe <axboe@kernel.dk>
Subject: Re: [PATCH v3] virtio_blk: add VIRTIO_BLK_F_LIFETIME feature support
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References: <20221205162035.2261037-1-alvaro.karsz@solid-run.com>
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This just seems like a horrible interface.  And virtio-blk should be
a simple passthrough and not grow tons of side-band crap like this.

If you want to pass through random misc information use virtio-scsi
or nvme with shadow doorbell buffers.