@@ -63,6 +63,11 @@ typedef struct VirtioBusClass VirtioCcwBusClass;
DECLARE_OBJ_CHECKERS(VirtioCcwBusState, VirtioCcwBusClass,
VIRTIO_CCW_BUS, TYPE_VIRTIO_CCW_BUS)
+/*
+ * modules can reference this symbol to avoid being loaded
+ * into system emulators without ccw support
+ */
+extern bool have_virtio_ccw;
struct VirtIOCCWDeviceClass {
CCWDeviceClass parent_class;
@@ -35,6 +35,8 @@
#define NR_CLASSIC_INDICATOR_BITS 64
+bool have_virtio_ccw = true;
+
static int virtio_ccw_dev_post_load(void *opaque, int version_id)
{
VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(opaque);
Introduce a symbol which can be used to prevent ccw modules being loaded into system emulators without ccw support. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> --- hw/s390x/virtio-ccw.h | 5 +++++ hw/s390x/virtio-ccw.c | 2 ++ 2 files changed, 7 insertions(+)