diff options
Diffstat (limited to 'block')
| -rw-r--r-- | block/vhdx.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/block/vhdx.c b/block/vhdx.c index bec10bd09c..46d504c96c 100644 --- a/block/vhdx.c +++ b/block/vhdx.c @@ -1774,7 +1774,7 @@ static int vhdx_create(const char *filename, QemuOpts *opts, Error **errp) log_size = qemu_opt_get_size_del(opts, VHDX_BLOCK_OPT_LOG_SIZE, 0); block_size = qemu_opt_get_size_del(opts, VHDX_BLOCK_OPT_BLOCK_SIZE, 0); type = qemu_opt_get_del(opts, BLOCK_OPT_SUBFMT); - use_zero_blocks = qemu_opt_get_bool_del(opts, VHDX_BLOCK_OPT_ZERO, false); + use_zero_blocks = qemu_opt_get_bool_del(opts, VHDX_BLOCK_OPT_ZERO, true); if (image_size > VHDX_MAX_IMAGE_SIZE) { error_setg_errno(errp, EINVAL, "Image size too large; max of 64TB"); @@ -1936,7 +1936,9 @@ static QemuOptsList vhdx_create_opts = { { .name = VHDX_BLOCK_OPT_ZERO, .type = QEMU_OPT_BOOL, - .help = "Force use of payload blocks of type 'ZERO'. Non-standard." + .help = "Force use of payload blocks of type 'ZERO'. "\ + "Non-standard, but default. Do not set to 'off' when "\ + "using 'qemu-img convert' with subformat=dynamic." }, { NULL } } |