This information can be useful both for debugging and for management tools trying to configure guest devices with the optimal limits (possibly across multiple hosts). There is no reason not to make it available, so just add it both in the monitor (QMP and HMP) and in 'qemu-img info'.
Kevin Wolf (2): block: Expose block limits for images in QMP qemu-img info: Optionally show block limits qapi/block-core.json | 59 ++++++++++++++++++++++++++++ docs/tools/qemu-img.rst | 6 ++- include/block/qapi.h | 2 +- block/qapi.c | 66 ++++++++++++++++++++++++++++++-- qemu-img.c | 15 ++++++-- qemu-img-cmds.hx | 4 +- tests/qemu-iotests/184 | 3 +- tests/qemu-iotests/184.out | 8 ---- tests/qemu-iotests/common.filter | 3 +- 9 files changed, 145 insertions(+), 21 deletions(-) -- 2.51.0