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Date:   Fri, 15 Jun 2018 14:29:43 +0300
From:   "Michael S. Tsirkin" <mst@redhat.com>
To:     Wei Wang <wei.w.wang@intel.com>
Cc:     virtio-dev@lists.oasis-open.org, linux-kernel@vger.kernel.org,
        virtualization@lists.linux-foundation.org, kvm@vger.kernel.org,
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        torvalds@linux-foundation.org, pbonzini@redhat.com,
        liliang.opensource@gmail.com, yang.zhang.wz@gmail.com,
        quan.xu0@gmail.com, nilal@redhat.com, riel@redhat.com,
        peterx@redhat.com
Subject: Re: [PATCH v33 0/4] Virtio-balloon: support free page reporting
Message-ID: <20180615142610-mutt-send-email-mst@kernel.org>
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On Fri, Jun 15, 2018 at 12:43:09PM +0800, Wei Wang wrote:
>       - remove the cmd id related interface. Now host can just send a free
>         page hint command to the guest (via the host_cmd config register)
>         to start the reporting.

Here we go again. And what if reporting was already started previously?
I don't think it's a good idea to tweak the host/guest interface yet
again.

-- 
MST