[RFC v5 23/23] vfio-user: add dirty_bitmap stub until it support migration

[John Johnson]

Signed-off-by: John G Johnson <john.g.johnson@oracle.com>
Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com>
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
---
 hw/vfio/user.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/hw/vfio/user.c b/hw/vfio/user.c
index a3e4dc8..eb79785 100644
--- a/hw/vfio/user.c
+++ b/hw/vfio/user.c
@@ -1626,6 +1626,15 @@ static int vfio_user_io_dma_unmap(VFIOContainer 
*container,
                                container->async_ops);
 }
 
+static int vfio_user_io_dirty_bitmap(VFIOContainer *container,
+                        struct vfio_iommu_type1_dirty_bitmap *bitmap,
+                        struct vfio_iommu_type1_dirty_bitmap_get *range)
+{
+
+    /* vfio-user doesn't support migration */
+    return -EINVAL;
+}
+
 static void vfio_user_io_wait_commit(VFIOContainer *container)
 {
     vfio_user_wait_reqs(container->proxy);
@@ -1634,5 +1643,6 @@ static void vfio_user_io_wait_commit(VFIOContainer 
*container)
 VFIOContIO vfio_cont_io_sock = {
     .dma_map = vfio_user_io_dma_map,
     .dma_unmap = vfio_user_io_dma_unmap,
+    .dirty_bitmap = vfio_user_io_dirty_bitmap,
     .wait_commit = vfio_user_io_wait_commit,
 };
-- 
1.8.3.1