473 static int blkdebug_open(BlockDriverState *bs, QDict *options, int flags,  in blkdebug_open()  argument
476     BDRVBlkdebugState *s = bs->opaque;  in blkdebug_open()
506                                bs, errp);  in blkdebug_open()
513     bs->supported_write_flags = BDRV_REQ_WRITE_UNCHANGED |  in blkdebug_open()
514         (BDRV_REQ_FUA & bs->file->bs->supported_write_flags);  in blkdebug_open()
515     bs->supported_zero_flags = BDRV_REQ_WRITE_UNCHANGED |  in blkdebug_open()
517             bs->file->bs->supported_zero_flags);  in blkdebug_open()
527     align = MAX(s->align, bs->file->bs->bl.request_alignment);  in blkdebug_open()
576     bdrv_debug_event(bs, BLKDBG_NONE);  in blkdebug_open()
590 static int coroutine_fn rule_check(BlockDriverState *bs, uint64_t offset,  in rule_check()  argument
593     BDRVBlkdebugState *s = bs->opaque;  in rule_check()
634 blkdebug_co_preadv(BlockDriverState *bs, int64_t offset, int64_t bytes,  in blkdebug_co_preadv()  argument
640     assert(QEMU_IS_ALIGNED(offset, bs->bl.request_alignment));  in blkdebug_co_preadv()
641     assert(QEMU_IS_ALIGNED(bytes, bs->bl.request_alignment));  in blkdebug_co_preadv()
642     if (bs->bl.max_transfer) {  in blkdebug_co_preadv()
643         assert(bytes <= bs->bl.max_transfer);  in blkdebug_co_preadv()
646     err = rule_check(bs, offset, bytes, BLKDEBUG_IO_TYPE_READ);  in blkdebug_co_preadv()
651     return bdrv_co_preadv(bs->file, offset, bytes, qiov, flags);  in blkdebug_co_preadv()
655 blkdebug_co_pwritev(BlockDriverState *bs, int64_t offset, int64_t bytes,  in blkdebug_co_pwritev()  argument
661     assert(QEMU_IS_ALIGNED(offset, bs->bl.request_alignment));  in blkdebug_co_pwritev()
662     assert(QEMU_IS_ALIGNED(bytes, bs->bl.request_alignment));  in blkdebug_co_pwritev()
663     if (bs->bl.max_transfer) {  in blkdebug_co_pwritev()
664         assert(bytes <= bs->bl.max_transfer);  in blkdebug_co_pwritev()
667     err = rule_check(bs, offset, bytes, BLKDEBUG_IO_TYPE_WRITE);  in blkdebug_co_pwritev()
672     return bdrv_co_pwritev(bs->file, offset, bytes, qiov, flags);  in blkdebug_co_pwritev()
675 static int GRAPH_RDLOCK coroutine_fn blkdebug_co_flush(BlockDriverState *bs)  in blkdebug_co_flush()  argument
677     int err = rule_check(bs, 0, 0, BLKDEBUG_IO_TYPE_FLUSH);  in blkdebug_co_flush()
683     return bdrv_co_flush(bs->file->bs);  in blkdebug_co_flush()
687 blkdebug_co_pwrite_zeroes(BlockDriverState *bs, int64_t offset, int64_t bytes,  in blkdebug_co_pwrite_zeroes()  argument
690     uint32_t align = MAX(bs->bl.request_alignment,  in blkdebug_co_pwrite_zeroes()
691                          bs->bl.pwrite_zeroes_alignment);  in blkdebug_co_pwrite_zeroes()
707     if (bs->bl.max_pwrite_zeroes) {  in blkdebug_co_pwrite_zeroes()
708         assert(bytes <= bs->bl.max_pwrite_zeroes);  in blkdebug_co_pwrite_zeroes()
711     err = rule_check(bs, offset, bytes, BLKDEBUG_IO_TYPE_WRITE_ZEROES);  in blkdebug_co_pwrite_zeroes()
716     return bdrv_co_pwrite_zeroes(bs->file, offset, bytes, flags);  in blkdebug_co_pwrite_zeroes()
720 blkdebug_co_pdiscard(BlockDriverState *bs, int64_t offset, int64_t bytes)  in blkdebug_co_pdiscard()  argument
722     uint32_t align = bs->bl.pdiscard_alignment;  in blkdebug_co_pdiscard()
728     if (bytes < bs->bl.request_alignment) {  in blkdebug_co_pdiscard()
735     assert(QEMU_IS_ALIGNED(offset, bs->bl.request_alignment));  in blkdebug_co_pdiscard()
736     assert(QEMU_IS_ALIGNED(bytes, bs->bl.request_alignment));  in blkdebug_co_pdiscard()
741     if (bs->bl.max_pdiscard) {  in blkdebug_co_pdiscard()
742         assert(bytes <= bs->bl.max_pdiscard);  in blkdebug_co_pdiscard()
745     err = rule_check(bs, offset, bytes, BLKDEBUG_IO_TYPE_DISCARD);  in blkdebug_co_pdiscard()
750     return bdrv_co_pdiscard(bs->file, offset, bytes);  in blkdebug_co_pdiscard()
754 blkdebug_co_block_status(BlockDriverState *bs, bool want_zero, int64_t offset,  in blkdebug_co_block_status()  argument
760     assert(QEMU_IS_ALIGNED(offset | bytes, bs->bl.request_alignment));  in blkdebug_co_block_status()
762     err = rule_check(bs, offset, bytes, BLKDEBUG_IO_TYPE_BLOCK_STATUS);  in blkdebug_co_block_status()
767     assert(bs->file && bs->file->bs);  in blkdebug_co_block_status()
770     *file = bs->file->bs;  in blkdebug_co_block_status()
774 static void blkdebug_close(BlockDriverState *bs)  in blkdebug_close()  argument
776     BDRVBlkdebugState *s = bs->opaque;  in blkdebug_close()
791 static void suspend_request(BlockDriverState *bs, BlkdebugRule *rule)  in suspend_request()  argument
793     BDRVBlkdebugState *s = bs->opaque;  in suspend_request()
810 static void process_rule(BlockDriverState *bs, struct BlkdebugRule *rule,  in process_rule()  argument
813     BDRVBlkdebugState *s = bs->opaque;  in process_rule()
835         suspend_request(bs, rule);  in process_rule()
841 blkdebug_co_debug_event(BlockDriverState *bs, BlkdebugEvent event)  in blkdebug_co_debug_event()  argument
843     BDRVBlkdebugState *s = bs->opaque;  in blkdebug_co_debug_event()
853             process_rule(bs, rule, actions_count, &new_state);  in blkdebug_co_debug_event()
864 static int blkdebug_debug_breakpoint(BlockDriverState *bs, const char *event,  in blkdebug_debug_breakpoint()  argument
867     BDRVBlkdebugState *s = bs->opaque;  in blkdebug_debug_breakpoint()
927 static int blkdebug_debug_resume(BlockDriverState *bs, const char *tag)  in blkdebug_debug_resume()  argument
929     BDRVBlkdebugState *s = bs->opaque;  in blkdebug_debug_resume()
934 static int blkdebug_debug_remove_breakpoint(BlockDriverState *bs,  in blkdebug_debug_remove_breakpoint()  argument
937     BDRVBlkdebugState *s = bs->opaque;  in blkdebug_debug_remove_breakpoint()
957 static bool blkdebug_debug_is_suspended(BlockDriverState *bs, const char *tag)  in blkdebug_debug_is_suspended()  argument
959     BDRVBlkdebugState *s = bs->opaque;  in blkdebug_debug_is_suspended()
972 blkdebug_co_getlength(BlockDriverState *bs)  in blkdebug_co_getlength()  argument
974     return bdrv_co_getlength(bs->file->bs);  in blkdebug_co_getlength()
977 static void GRAPH_RDLOCK blkdebug_refresh_filename(BlockDriverState *bs)  in blkdebug_refresh_filename()  argument
979     BDRVBlkdebugState *s = bs->opaque;  in blkdebug_refresh_filename()
983     if (!bs->file->bs->exact_filename[0]) {  in blkdebug_refresh_filename()
987     for (e = qdict_first(bs->full_open_options); e;  in blkdebug_refresh_filename()
988          e = qdict_next(bs->full_open_options, e))  in blkdebug_refresh_filename()
1001     ret = snprintf(bs->exact_filename, sizeof(bs->exact_filename),  in blkdebug_refresh_filename()
1003                    s->config_file ?: "", bs->file->bs->exact_filename);  in blkdebug_refresh_filename()
1004     if (ret >= sizeof(bs->exact_filename)) {  in blkdebug_refresh_filename()
1006         bs->exact_filename[0] = 0;  in blkdebug_refresh_filename()
1010 static void blkdebug_refresh_limits(BlockDriverState *bs, Error **errp)  in blkdebug_refresh_limits()  argument
1012     BDRVBlkdebugState *s = bs->opaque;  in blkdebug_refresh_limits()
1015         bs->bl.request_alignment = s->align;  in blkdebug_refresh_limits()
1018         bs->bl.max_transfer = s->max_transfer;  in blkdebug_refresh_limits()
1021         bs->bl.pwrite_zeroes_alignment = s->opt_write_zero;  in blkdebug_refresh_limits()
1024         bs->bl.max_pwrite_zeroes = s->max_write_zero;  in blkdebug_refresh_limits()
1027         bs->bl.pdiscard_alignment = s->opt_discard;  in blkdebug_refresh_limits()
1030         bs->bl.max_pdiscard = s->max_discard;  in blkdebug_refresh_limits()
1040 static void blkdebug_child_perm(BlockDriverState *bs, BdrvChild *c,  in blkdebug_child_perm()  argument
1046     BDRVBlkdebugState *s = bs->opaque;  in blkdebug_child_perm()
1048     bdrv_default_perms(bs, c, role, reopen_queue,  in blkdebug_child_perm()