The reason to modularize the block layer in QEMU is to allow smaller/minimal installations of QEMU, with two primary use-cases:
1. Allow the split of the QEMU package, bringing less dependencies to a minimal installation. This is particularly important for the case of remote storage drivers, such as Ceph and Gluster, which usually link to and require external libraries and tools.
2. Faster startup of QEMU, with less drivers to load.
Even though we do have support for it, it won't be enabled until we figure out the new packaging layout, being tracked by Bug 1425820.
So there's nothing specific to test here, I suggest a sanity-only test. The real testing will happen once we properly split qemu into multiple packages (bug 1425820 mentioned above).
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.