Five minutes after pushing eperezma's patches that query QEMU for migration blockers, I realized that the query would be called during "offline migration" (when there is no QEMU process running). So the 1st patch moves the query down so it will only be called during live migration. The 2nd patch takes advantage of this new query to skip the hardcoded check the makes any vfio assigned device a migration blocker. Once QEMU and the kernel get migration of (some) vfio devices sorted out, libvirt will allow migration of domains with those devices. Laine Stump (2): qemu: don't try to query QEMU about migration blockers during offline migration qemu: skip hardcoded hostdev migration check if QEMU can do it for us src/qemu/qemu_migration.c | 45 ++++++++++++++++++++++----------------- 1 file changed, 26 insertions(+), 19 deletions(-) -- 2.35.3