virtio: make virtio device's structures public.

These structures must be made public to avoid two memory allocations for
refactored virtio devices.

Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Message-id: 1363624648-16906-2-git-send-email-fred.konrad@greensocs.com

Changes V4 <- V3:
   * Rebased on current git.

Changes V3 <- V2:
    * Style correction spotted by Andreas (virtio-scsi.h).
    * Style correction for virtio-net.h.

Changes V2 <- V1:
    * Move the dataplane include into the header (virtio-blk).
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

1 files changed, 19 insertions, 0 deletions

diff --git a/hw/virtio-rng.h b/hw/virtio-rng.h
index f42d748eba..3711c97a70 100644
--- a/hw/virtio-rng.h
+++ b/hw/virtio-rng.h
@@ -25,4 +25,23 @@ struct VirtIORNGConf {
     RndRandom *default_backend;
 };
 
+typedef struct VirtIORNG {
+    VirtIODevice vdev;
+
+    DeviceState *qdev;
+
+    /* Only one vq - guest puts buffer(s) on it when it needs entropy */
+    VirtQueue *vq;
+
+    VirtIORNGConf *conf;
+
+    RngBackend *rng;
+
+    /* We purposefully don't migrate this state.  The quota will reset on the
+     * destination as a result.  Rate limiting is host state, not guest state.
+     */
+    QEMUTimer *rate_limit_timer;
+    int64_t quota_remaining;
+} VirtIORNG;
+
 #endif