qemu-img info provides only pretty general information about an image. For any image format, there might be specific options which cannot be represented in a universal way; for instance, qcow2 provides the compatibility and lazy_refcount options whose values are certainly interesting but currently cannot be output by qemu-img info.
Therefore, this series adds a new ImageInfoSpecific union type to ImageInfo and BlockDriverInfo which may be used by block drivers as a template for new types dedicated to the specific information they can provide. It also adds support to qemu-img info and qemu-io -c info to print the content of these specific structures. v2: - following Eric's recommendation: changed the representation of the format specific information from an uninterpreted blobbed string to a union of format specific types Max Reitz (6): qapi: Add ImageInfoSpecific type block: Add ImageInfoSpecific to BlockDriverInfo block/qapi: Human-readable ImageInfoSpecific dump qcow2: Add support for ImageInfoSpecific qemu-iotests: Discard specific info in _img_info qemu-iotests: Additional info from qemu-img info block.c | 3 +- block/mirror.c | 6 +- block/qapi.c | 127 ++++++++++++++++++++++++++++++++++++++++++- block/qcow2.c | 12 ++++ include/block/block.h | 2 + include/block/qapi.h | 2 + qapi-schema.json | 34 +++++++++++- qemu-img.c | 3 +- qemu-io-cmds.c | 9 ++- tests/qemu-iotests/064 | 72 ++++++++++++++++++++++++ tests/qemu-iotests/064.out | 22 ++++++++ tests/qemu-iotests/common.rc | 19 ++++++- tests/qemu-iotests/group | 1 + 13 files changed, 304 insertions(+), 8 deletions(-) create mode 100755 tests/qemu-iotests/064 create mode 100644 tests/qemu-iotests/064.out -- 1.8.3.1