diff options
| -rw-r--r-- | block/block-backend.c | 8 | ||||
| -rw-r--r-- | include/sysemu/block-backend.h | 1 |
2 files changed, 9 insertions, 0 deletions
diff --git a/block/block-backend.c b/block/block-backend.c index deb55c272e..6140d133e2 100644 --- a/block/block-backend.c +++ b/block/block-backend.c @@ -870,6 +870,14 @@ int blk_insert_bs(BlockBackend *blk, BlockDriverState *bs, Error **errp) } /* + * Change BlockDriverState associated with @blk. + */ +int blk_replace_bs(BlockBackend *blk, BlockDriverState *new_bs, Error **errp) +{ + return bdrv_replace_child_bs(blk->root, new_bs, errp); +} + +/* * Sets the permission bitmasks that the user of the BlockBackend needs. */ int blk_set_perm(BlockBackend *blk, uint64_t perm, uint64_t shared_perm, diff --git a/include/sysemu/block-backend.h b/include/sysemu/block-backend.h index 9ac5f7bbd3..29d4fdbf63 100644 --- a/include/sysemu/block-backend.h +++ b/include/sysemu/block-backend.h @@ -102,6 +102,7 @@ BlockBackend *blk_by_public(BlockBackendPublic *public); BlockDriverState *blk_bs(BlockBackend *blk); void blk_remove_bs(BlockBackend *blk); int blk_insert_bs(BlockBackend *blk, BlockDriverState *bs, Error **errp); +int blk_replace_bs(BlockBackend *blk, BlockDriverState *new_bs, Error **errp); bool bdrv_has_blk(BlockDriverState *bs); bool bdrv_is_root_node(BlockDriverState *bs); int blk_set_perm(BlockBackend *blk, uint64_t perm, uint64_t shared_perm, |