1 files changed, 6 insertions, 0 deletions
diff --git a/include/qemu/int128.h b/include/qemu/int128.h
index d4c6e44331..5c9890db8b 100644
--- a/include/qemu/int128.h
+++ b/include/qemu/int128.h
@@ -2,6 +2,7 @@
 #define INT128_H
 
 #ifdef CONFIG_INT128
+#include "qemu/bswap.h"
 
 typedef __int128_t Int128;
 
@@ -137,6 +138,11 @@ static inline void int128_subfrom(Int128 *a, Int128 b)
     *a -= b;
 }
 
+static inline Int128 bswap128(Int128 a)
+{
+    return int128_make128(bswap64(int128_gethi(a)), bswap64(int128_getlo(a)));
+}
+
 #else /* !CONFIG_INT128 */
 
 typedef struct Int128 Int128;