+typedef enum
+{
+ SVM_FIFO_FULL = -2,
+} svm_fifo_err_t;
+
+typedef struct svm_fifo_segment_
+{
+ u8 *data;
+ u32 len;
+} svm_fifo_segment_t;
+
+#if SVM_FIFO_TRACE
+#define svm_fifo_trace_add(_f, _s, _l, _t) \
+{ \
+ svm_fifo_trace_elem_t *trace_elt; \
+ vec_add2(_f->trace, trace_elt, 1); \
+ trace_elt->offset = _s; \
+ trace_elt->len = _l; \
+ trace_elt->action = _t; \
+}
+#else
+#define svm_fifo_trace_add(_f, _s, _l, _t)
+#endif
+
+u8 *svm_fifo_dump_trace (u8 * s, svm_fifo_t * f);
+u8 *svm_fifo_replay (u8 * s, svm_fifo_t * f, u8 no_read, u8 verbose);
+