1 files changed, 1 insertions, 0 deletions
diff --git a/block.h b/block.h
index 12053d9f1e..99d3a1e17b 100644
--- a/block.h
+++ b/block.h
@@ -78,6 +78,7 @@ int bdrv_pwrite(BlockDriverState *bs, int64_t offset,
 int bdrv_truncate(BlockDriverState *bs, int64_t offset);
 int64_t bdrv_getlength(BlockDriverState *bs);
 void bdrv_get_geometry(BlockDriverState *bs, uint64_t *nb_sectors_ptr);
+void bdrv_guess_geometry(BlockDriverState *bs, int *pcyls, int *pheads, int *psecs);
 int bdrv_commit(BlockDriverState *bs);
 /* async block I/O */
 typedef struct BlockDriverAIOCB BlockDriverAIOCB;