On 2/20/20 6:28 AM, Kevin Wolf wrote:
Am 20.02.2020 um 12:58 hat Max Reitz geschrieben:
On 14.01.20 09:22, Andrey Shinkevich wrote:
The information about QCOW2 metadata allocations in an image ELF-file is
helpful for finding issues with the image data integrity.
Sorry that I’m replying only so late – but I don’t know why we need this
in qemu, and this cover letter doesn’t provide a justification. I mean,
it isn’t too complex (from the diffstat), but wouldn’t it be better to
just have a script for this?
Specifically, we could extend tests/qemu-iotests/qcow2.py. This seems to
be debugging output that would be in line with what the script is
already used for.
I also just discovered GNU poke, http://jemarch.net/poke, which is an
arbitrary binary-format editor with a fairly good example of how it can
be used to inspect ELF files. I'm wondering if it would be easier to
write a pickle describing the qcow2 format that would make it easier to
do interactive browsing/editing of a qcow2 file, at the expense of
having to depend on poke (which has not yet hit the 1.0 release and is
not yet bundled for Fedora).
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3226
Virtualization: qemu.org | libvirt.org
