We warn when a -drive isn't supported by the machine type (commit a66c9dc):
$ qemu-system-x86_64 -S -display none -drive if=mtd Warning: Orphaned drive without device: id=mtd0,file=,if=mtd,bus=0,unit=0 Improve this to point to the offending bit of configuration: qemu-system-x86_64: -drive if=mtd: warning: machine type does not support this drive Especially nice when it's hidden behind -readconfig foo.cfg: qemu-system-x86_64:foo.cfg:140: warning: machine type does not support this drive Signed-off-by: Markus Armbruster <arm...@redhat.com> --- blockdev.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/blockdev.c b/blockdev.c index 245e1e1..a597a66 100644 --- a/blockdev.c +++ b/blockdev.c @@ -231,6 +231,7 @@ bool drive_check_orphaned(void) { BlockBackend *blk; DriveInfo *dinfo; + Location loc; bool rs = false; for (blk = blk_next(NULL); blk; blk = blk_next(blk)) { @@ -239,10 +240,10 @@ bool drive_check_orphaned(void) /* Unless this is a default drive, this may be an oversight. */ if (!blk_get_attached_dev(blk) && !dinfo->is_default && dinfo->type != IF_NONE) { - fprintf(stderr, "Warning: Orphaned drive without device: " - "id=%s,file=%s,if=%s,bus=%d,unit=%d\n", - blk_name(blk), blk_bs(blk) ? blk_bs(blk)->filename : "", - if_name[dinfo->type], dinfo->bus, dinfo->unit); + loc_push_none(&loc); + qemu_opts_loc_restore(dinfo->opts); + error_report("warning: machine type does not support this drive"); + loc_pop(&loc); rs = true; } } -- 2.7.4