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Tsirkin" , Gautam Dawar , Lei Yang , Laurent Vivier , alvaro.karsz@solid-run.com, Jason Wang Subject: [PATCH] vdpa: declare SVQ support for VIRTIO_NET_F_HOST_USO Date: Wed, 22 Mar 2023 11:29:52 +0100 Message-Id: <20230322102952.819291-1-eperezma@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.1 on 10.11.54.2 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.133.124; envelope-from=eperezma@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1679481013108100003 At the moment qemu block the migration as long as the vdpa device offers features not supported by SVQ. VIRTIO_NET_F_HOST_USO is not even offered to the guest, since qemu emulated devices does not support it, and we know for sure it will require no changes on SVQ code when supported. For that reason, lift the block on this feature. In a future this blocker could be smarter, and ignore features that are never offered to the guest either because is disabled in the cmdline (like mq=3Doff) or it is not even supported. Tested-by: Alvaro Karsz Signed-off-by: Eugenio P=C3=A9rez --- net/vhost-vdpa.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/vhost-vdpa.c b/net/vhost-vdpa.c index 99904a0da7..ff67babd23 100644 --- a/net/vhost-vdpa.c +++ b/net/vhost-vdpa.c @@ -103,6 +103,7 @@ static const uint64_t vdpa_svq_device_features =3D BIT_ULL(VIRTIO_NET_F_CTRL_MAC_ADDR) | /* VHOST_F_LOG_ALL is exposed by SVQ */ BIT_ULL(VHOST_F_LOG_ALL) | + BIT_ULL(VIRTIO_NET_F_HOST_USO) | BIT_ULL(VIRTIO_NET_F_RSC_EXT) | BIT_ULL(VIRTIO_NET_F_STANDBY); =20 --=20 2.31.1