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Wed, 17 Mar 2021 03:51:49 +0000 (UTC) Date: Tue, 16 Mar 2021 23:51:49 -0400 (EDT) From: Jason Wang To: Masahiro Yamada Message-ID: <1545258633.64106634.1615953109176.JavaMail.zimbra@redhat.com> In-Reply-To: References: Subject: Re: Question about two option formats for netdev MIME-Version: 1.0 X-Originating-IP: [10.72.12.188, 10.4.195.15] Thread-Topic: Question about two option formats for netdev Thread-Index: i4xJcaBcX4UGu5T0BXY27TzphkXwsw== X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=jasowang@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Received-SPF: pass client-ip=170.10.133.124; envelope-from=jasowang@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -29 X-Spam_score: -3.0 X-Spam_bar: --- X-Spam_report: (-3.0 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.25, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Thomas Huth , qemu-arm@nongnu.org, qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" ----- =E5=8E=9F=E5=A7=8B=E9=82=AE=E4=BB=B6 ----- > Hi. >=20 > I have a question about adding > a network device. >=20 >=20 > qemu-system-arm -machine vexpress-a9 \ > -net nic,model=3Dlan9118 -net user ... >=20 > works for me, but 'man qemu-system-arm' > says this is "Legacy option". >=20 >=20 > Is there any new (or recommended) form > to use a lan9118 device? Have you tried to use the "-nic" option[1]? [1] https://www.qemu.org/2018/05/31/nic-parameter/ Thanks >=20 >=20 > If I understand correctly, >=20 > -netdev user,id=3D \ > -device ,netdev=3D >=20 > is the new option form. >=20 > For example, I can use the new form > for virtio-net-device. >=20 >=20 > But, it does not work for lan9118, > and actually I cannot see lan9118 in > "qemu-system-arm -machine vexpress-a9 -device help". >=20 >=20 > So, the two options are different worlds, > we need to choose appropriate form > to use a particular device, correct? >=20 >=20 >=20 >=20 > -- > Best Regards > Masahiro Yamada >=20 >=20