virtio.h: add new api virtio_has_feature()

virtio_has_feature() can be easily used to heck if the virtio device support a specific feature. Signed-off-by: Bowen Wang <[email protected]>
OpenAMP · Oct 18, 2024 · 3cb3e9c · 3cb3e9c
1 parent d0a1f3d
commit 3cb3e9c
Showing 1 changed file with 17 additions and 0 deletions.
diff --git a/lib/include/openamp/virtio.h b/lib/include/openamp/virtio.h
@@ -505,6 +505,23 @@ static inline int virtio_reset_device(struct virtio_device *vdev)
 	return 0;
 }
 
+/**
+ * @brief Check if the virtio device support a specific feature.
+ *
+ * @param vdev		Pointer to device structure.
+ * @param feature_bit	Feature bit to check.
+ *
+ * @return true if the feature is supported, otherwise false.
+ */
+static inline bool virtio_has_feature(struct virtio_device *vdev,
+				      unsigned int feature_bit)
+{
+	if (!vdev)
+		return false;
+
+	return (vdev->features & (1UL << feature_bit)) != 0;
+}
+
 #if defined __cplusplus
 }
 #endif