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a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1742995244; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=CDklKuC5L3JF0nZoxxdQAyPqUBGCqrBeyCpp179htLk=; b=XL1RN+gs5gLFk9oR865L0wumkaD1Bi7hr0/cQII07QllYL8UMn1vO8L4KqtscYxOYfRqwS rhIqiEVafrFyt1huR8BF565TAb3ymmWf/vwnDQJxYjNkDV0drBZZx+piaONG3JkrmETMkh w7/m9NhB57yCudk+9BvdgQn0jX+80fg= X-MC-Unique: f--zVQavMda1ntyJxu0LLA-1 X-Mimecast-MFC-AGG-ID: f--zVQavMda1ntyJxu0LLA_1742995239 From: Cindy Lu To: lulu@redhat.com, mst@redhat.com, jasowang@redhat.com, qemu-devel@nongnu.org Subject: [PATCH v5 1/4] vhost_vdpa : Add a new parameter to enable check mac address Date: Wed, 26 Mar 2025 21:19:30 +0800 Message-ID: <20250326132021.1215568-2-lulu@redhat.com> In-Reply-To: <20250326132021.1215568-1-lulu@redhat.com> References: <20250326132021.1215568-1-lulu@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.0 on 10.30.177.15 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; 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charset="utf-8" When using a VDPA device, it's important to ensure that the MAC address is correctly set. Add a new parameter in qemu cmdline to enable this check, default value is false The usage is: .... -netdev type=3Dvhost-vdpa,vhostdev=3D/dev/vhost-vdpa-0,id=3Dvhost-vdpa0,che= ck-mac=3Dtrue\ -device virtio-net-pci,netdev=3Dvhost-vdpa0\ .... Signed-off-by: Cindy Lu --- include/net/net.h | 1 + net/vhost-vdpa.c | 4 ++++ qapi/net.json | 5 +++++ 3 files changed, 10 insertions(+) diff --git a/include/net/net.h b/include/net/net.h index cdd5b109b0..fac1951b6e 100644 --- a/include/net/net.h +++ b/include/net/net.h @@ -112,6 +112,7 @@ struct NetClientState { bool is_netdev; bool do_not_pad; /* do not pad to the minimum ethernet frame length */ bool is_datapath; + bool check_mac; QTAILQ_HEAD(, NetFilterState) filters; }; =20 diff --git a/net/vhost-vdpa.c b/net/vhost-vdpa.c index 7ca8b46eee..ba1da31741 100644 --- a/net/vhost-vdpa.c +++ b/net/vhost-vdpa.c @@ -1870,6 +1870,8 @@ int net_init_vhost_vdpa(const Netdev *netdev, const c= har *name, iova_range, features, shared, errp); if (!ncs[i]) goto err; + + ncs[i]->check_mac =3D opts->check_mac; } =20 if (has_cvq) { @@ -1882,6 +1884,8 @@ int net_init_vhost_vdpa(const Netdev *netdev, const c= har *name, errp); if (!nc) goto err; + + nc->check_mac =3D opts->check_mac; } =20 return 0; diff --git a/qapi/net.json b/qapi/net.json index 310cc4fd19..a5c70d1df8 100644 --- a/qapi/net.json +++ b/qapi/net.json @@ -510,6 +510,10 @@ # @queues: number of queues to be created for multiqueue vhost-vdpa # (default: 1) # +# @check-mac: Enable the check for whether the device's MAC address +# and the MAC in QEMU command line are acceptable for booting. +# (default: false) +# # @x-svq: Start device with (experimental) shadow virtqueue. (Since # 7.1) (default: false) # @@ -524,6 +528,7 @@ '*vhostdev': 'str', '*vhostfd': 'str', '*queues': 'int', + '*check-mac': 'bool', '*x-svq': {'type': 'bool', 'features' : [ 'unstable'] } } } =20 ## --=20 2.45.0