vhost-user: send log shm fd along with log_base

Send the shm for the dirty pages logging if the backend supports
VHOST_USER_PROTOCOL_F_LOG_SHMFD. Wait for a reply to make sure
the old log is no longer used.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Thibaut Collet <thibaut.collet@6wind.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/include/hw/virtio/vhost-backend.h b/include/hw/virtio/vhost-backend.h
index c33570a..375625f 100644
--- a/include/hw/virtio/vhost-backend.h
+++ b/include/hw/virtio/vhost-backend.h
@@ -21,6 +21,7 @@ typedef enum VhostBackendType {
 } VhostBackendType;
 
 struct vhost_dev;
+struct vhost_log;
 
 typedef int (*vhost_call)(struct vhost_dev *dev, unsigned long int request,
              void *arg);
@@ -30,7 +31,8 @@ typedef int (*vhost_backend_get_vq_index)(struct vhost_dev *dev, int idx);
 typedef int (*vhost_backend_set_vring_enable)(struct vhost_dev *dev, int enable);
 typedef int (*vhost_backend_memslots_limit)(struct vhost_dev *dev);
 
-typedef int (*vhost_set_log_base_op)(struct vhost_dev *dev, uint64_t base);
+typedef int (*vhost_set_log_base_op)(struct vhost_dev *dev, uint64_t base,
+                                     struct vhost_log *log);
 typedef bool (*vhost_requires_shm_log_op)(struct vhost_dev *dev);
 
 typedef struct VhostOps {