diff --git a/block/blkdebug.c b/block/blkdebug.c
index a1b24b9b0d..b25856c49c 100644
--- a/block/blkdebug.c
+++ b/block/blkdebug.c
@@ -641,6 +641,16 @@ static int coroutine_fn blkdebug_co_pdiscard(BlockDriverState *bs,
return bdrv_co_pdiscard(bs->file->bs, offset, bytes);
}
+static int64_t coroutine_fn blkdebug_co_get_block_status(
+ BlockDriverState *bs, int64_t sector_num, int nb_sectors, int *pnum,
+ BlockDriverState **file)
+{
+ *pnum = nb_sectors;
+ *file = bs->file->bs;
+ return BDRV_BLOCK_RAW | BDRV_BLOCK_OFFSET_VALID |
+ (sector_num << BDRV_SECTOR_BITS);
+}
+
static void blkdebug_close(BlockDriverState *bs)
{
BDRVBlkdebugState *s = bs->opaque;
@@ -915,6 +925,7 @@ static BlockDriver bdrv_blkdebug = {
.bdrv_co_flush_to_disk = blkdebug_co_flush,
.bdrv_co_pwrite_zeroes = blkdebug_co_pwrite_zeroes,
.bdrv_co_pdiscard = blkdebug_co_pdiscard,
+ .bdrv_co_get_block_status = blkdebug_co_get_block_status,
.bdrv_debug_event = blkdebug_debug_event,
.bdrv_debug_breakpoint = blkdebug_debug_breakpoint,
diff --git a/tests/qemu-iotests/177.out b/tests/qemu-iotests/177.out
index fcfbfa3b83..43a777836c 100644
--- a/tests/qemu-iotests/177.out
+++ b/tests/qemu-iotests/177.out
@@ -46,6 +46,9 @@ read 30408704/30408704 bytes at offset 80740352
read 23068672/23068672 bytes at offset 111149056
22 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
Offset Length File
-0 0x8000000 json:{"image": {"driver": "IMGFMT", "file": {"driver": "file", "filename": "TEST_DIR/t.IMGFMT"}}, "driver": "blkdebug", "align": "4k"}
+0 0x800000 TEST_DIR/t.IMGFMT
+0x900000 0x2400000 TEST_DIR/t.IMGFMT
+0x3c00000 0x1100000 TEST_DIR/t.IMGFMT
+0x6a00000 0x1600000 TEST_DIR/t.IMGFMT
No errors were found on the image.
*** done