tests/qtest: failover: check missing guest feature

If QEMU provides the VIRTIO_NET_F_STANDBY feature but the guest doesn't
the primary device must be kept hidden

Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Message-Id: <20220203141537.972317-5-lvivier@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>

1 files changed, 33 insertions, 0 deletions

diff --git a/tests/qtest/virtio-net-failover.c b/tests/qtest/virtio-net-failover.c
index 4236796368..cbd8585fa8 100644
--- a/tests/qtest/virtio-net-failover.c
+++ b/tests/qtest/virtio-net-failover.c
@@ -404,6 +404,38 @@ static void test_enabled(void)
     machine_stop(qts);
 }
 
+static void test_guest_off(void)
+{
+    QTestState *qts;
+    QVirtioPCIDevice *vdev;
+    uint64_t features;
+
+    qts = machine_start(BASE_MACHINE
+                     "-netdev user,id=hs0 "
+                     "-device virtio-net,bus=root0,id=standby0,"
+                     "failover=on,netdev=hs0,mac="MAC_STANDBY0" "
+                     "-netdev user,id=hs1 "
+                     "-device virtio-net,bus=root1,id=primary0,"
+                     "failover_pair_id=standby0,netdev=hs1,mac="MAC_PRIMARY0" ",
+                     2);
+
+    check_one_card(qts, true, "standby0", MAC_STANDBY0);
+    check_one_card(qts, false, "primary0", MAC_PRIMARY0);
+
+    features = ~(QVIRTIO_F_BAD_FEATURE |
+                 (1ull << VIRTIO_RING_F_INDIRECT_DESC) |
+                 (1ull << VIRTIO_RING_F_EVENT_IDX) |
+                 (1ull << VIRTIO_NET_F_STANDBY));
+
+    vdev = start_virtio_net_internal(qts, 1, 0, &features);
+
+    check_one_card(qts, true, "standby0", MAC_STANDBY0);
+    check_one_card(qts, false, "primary0", MAC_PRIMARY0);
+
+    qos_object_destroy((QOSGraphObject *)vdev);
+    machine_stop(qts);
+}
+
 static void test_hotplug_1(void)
 {
     QTestState *qts;
@@ -1351,6 +1383,7 @@ int main(int argc, char **argv)
                    test_on_mismatch);
     qtest_add_func("failover-virtio-net/params/off", test_off);
     qtest_add_func("failover-virtio-net/params/enabled", test_enabled);
+    qtest_add_func("failover-virtio-net/params/guest_off", test_guest_off);
 
     /* hotplug tests */
     qtest_add_func("failover-virtio-net/hotplug/1", test_hotplug_1);