Migration Pull [dropped fabiano's patch on modifying cpu model for arm migration tests for now] - Fabiano's patchset to fix migration state references in BHs - Fabiano's new 'n-1' migration test for CI - Het's fix on making "uri" optional in QMP migrate cmd - Markus's HMP leak fix reported by Coverity - Paolo's cleanup on uffd to replace u64 usage - Peter's small migration cleanup series all over the places