On Mon, 11/23 22:30, Eric Blake wrote: > On 11/23/2015 10:21 PM, Fam Zheng wrote: > > The added parameter can be used to return the BDS pointer which the > > valid offset is refering to. It's value should be ignored unless > > s/refering/referring/ > > > BDRV_BLOCK_OFFSET_VALID in ret is set. > > > > Until block drivers fill in the right value, let's clear it explicitly > > right before calling .bdrv_get_block_status. > > > > Signed-off-by: Fam Zheng <f...@redhat.com> > > --- > > Reviewed-by: Eric Blake <ebl...@redhat.com> > > Is there ever going to be a need to expose this through QMP, or is this > just used for the qemu-img map subcommand? >
I don't think QMP has exposure of information in block address level; for now it is only used by qemu-img map, which has a "json" output format that can be used by upper layer tools. Thanks, Fam