@@ -779,6 +779,28 @@ int drm_gem_dmabuf_mmap(struct dma_buf *dma_buf, struct vm_area_struct *vma)
 }
 EXPORT_SYMBOL(drm_gem_dmabuf_mmap);
 
+/**
+ * drm_gem_dmabuf_get_uuid - dma_buf get_uuid implementation for GEM
+ * @dma_buf: buffer to query
+ * @uuid: uuid outparam
+ *
+ * Queries the buffer's virtio UUID. This can be used as the
+ * &dma_buf_ops.get_uuid callback. Calls into &drm_driver.gem_prime_get_uuid.
+ *
+ * Returns 0 on success or a negative error code on failure.
+ */
+int drm_gem_dmabuf_get_uuid(struct dma_buf *dma_buf, uuid_t *uuid)
+{
+	struct drm_gem_object *obj = dma_buf->priv;
+	struct drm_device *dev = obj->dev;
+
+	if (!dev->driver->gem_prime_get_uuid)
+		return -ENODEV;
+
+	return dev->driver->gem_prime_get_uuid(obj, uuid);
+}
+EXPORT_SYMBOL(drm_gem_dmabuf_get_uuid);
+
 static const struct dma_buf_ops drm_gem_prime_dmabuf_ops =  {
 	.cache_sgt_mapping = true,
 	.attach = drm_gem_map_attach,

@@ -789,6 +811,7 @@ static const struct dma_buf_ops drm_gem_prime_dmabuf_ops =  {
 	.mmap = drm_gem_dmabuf_mmap,
 	.vmap = drm_gem_dmabuf_vmap,
 	.vunmap = drm_gem_dmabuf_vunmap,
+	.get_uuid = drm_gem_dmabuf_get_uuid,
 };
 
 /**

@@ -29,6 +29,7 @@
 
 #include <linux/list.h>
 #include <linux/irqreturn.h>
+#include <linux/uuid.h>
 
 #include <drm/drm_device.h>
 

@@ -639,6 +640,15 @@ struct drm_driver {
 	int (*gem_prime_mmap)(struct drm_gem_object *obj,
 				struct vm_area_struct *vma);
 
+	/**
+	 * @gem_prime_get_uuid
+	 *
+	 * get_uuid hook for GEM drivers. Retrieves the virtio uuid of the
+	 * given GEM buffer.
+	 */
+	int (*gem_prime_get_uuid)(struct drm_gem_object *obj,
+				  uuid_t *uuid);
+
 	/**
 	 * @dumb_create:
 	 *