Re: [PATCH v3 0/7] Introduce multifd zero page checking.

Needs a rebase. But let me have a look at the QAPI schema changes first.

[PATCH v3 0/7] Introduce multifd zero page checking.

v3 update: * Change "zero" to "zero-pages" and use type size for "zero-bytes". * Fixed ZeroPageDetection interface description. * Move zero page unit tests to its own path. * Removed some asserts. * Added backward compatibility support for migration 9.0 -> 8.2. * Removed fields "zero" and "normal"