From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jason Wang <jasowang@redhat.com>
Subject: Re: [PATCH v7 2/2] s390: virtio: PV needs VIRTIO I/O device protection
Date: Wed, 15 Jul 2020 18:16:59 +0800
Message-ID: <bc5e09ad-faaf-8b38-83e0-5f4a4b1daeb0@redhat.com>
References: <1594801869-13365-1-git-send-email-pmorel@linux.ibm.com>
 <1594801869-13365-3-git-send-email-pmorel@linux.ibm.com>
 <20200715054807-mutt-send-email-mst@kernel.org>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"; Format="flowed"
Content-Transfer-Encoding: base64
Return-path: <virtualization-bounces@lists.linux-foundation.org>
In-Reply-To: <20200715054807-mutt-send-email-mst@kernel.org>
Content-Language: en-US
List-Unsubscribe: <https://lists.linuxfoundation.org/mailman/options/virtualization>,
 <mailto:virtualization-request@lists.linux-foundation.org?subject=unsubscribe>
List-Archive: <http://lists.linuxfoundation.org/pipermail/virtualization/>
List-Post: <mailto:virtualization@lists.linux-foundation.org>
List-Help: <mailto:virtualization-request@lists.linux-foundation.org?subject=help>
List-Subscribe: <https://lists.linuxfoundation.org/mailman/listinfo/virtualization>,
 <mailto:virtualization-request@lists.linux-foundation.org?subject=subscribe>
Errors-To: virtualization-bounces@lists.linux-foundation.org
Sender: "Virtualization" <virtualization-bounces@lists.linux-foundation.org>
To: "Michael S. Tsirkin" <mst@redhat.com>, Pierre Morel <pmorel@linux.ibm.com>
Cc: gor@linux.ibm.com, linux-s390@vger.kernel.org, frankja@linux.ibm.com, kvm@vger.kernel.org, thomas.lendacky@amd.com, hca@linux.ibm.com, cohuck@redhat.com, linuxram@us.ibm.com, linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org, pasic@linux.ibm.com, borntraeger@de.ibm.com, david@gibson.dropbear.id.au
List-Id: virtualization@lists.linuxfoundation.org
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