There are some hardcoded migration blockers in libvirt, like having a net
vhost-vdpa device. While it's true that they cannot be migrated at the moment,
there are plans to be able to migrate them soon.

They'll put a migration blockers in the cases where you cannot migrate them.
Ask qemu about then before rejecting the migration. In case the question is not
possible, assume they're not migratable.

v3:
* Return ok in qemuMonitorJSONGetMigrationBlockers is there are no
  blockers.
* Fix indentation
* Report all blockers instead of only the first.
* Squash some patches
* Move note to function doc.
* s/QEMU_MIGRATION_BLOCKED_REASONS/QEMU_CAPS_MIGRATION_BLOCKED_REASONS/

v2:
* Ask qemu if it has some pending blockers before try the migration

Eugenio Pérez (3):
  qemu_monitor: add support for get qemu migration blockers
  qemu_migration: get migration blockers before hardcoded checks
  qemu_migration: Do not forbid vDPA devices if can query blockers

Jonathon Jongsma (1):
  qemu: introduce capability QEMU_CAPS_MIGRATION_BLOCKED_REASONS

 src/qemu/qemu_capabilities.c                  |  2 +
 src/qemu/qemu_capabilities.h                  |  1 +
 src/qemu/qemu_migration.c                     | 38 +++++++++++++++-
 src/qemu/qemu_monitor.c                       | 11 +++++
 src/qemu/qemu_monitor.h                       |  4 ++
 src/qemu/qemu_monitor_json.c                  | 43 +++++++++++++++++++
 src/qemu/qemu_monitor_json.h                  |  3 ++
 .../caps_6.0.0.aarch64.xml                    |  1 +
 .../qemucapabilitiesdata/caps_6.0.0.s390x.xml |  1 +
 .../caps_6.0.0.x86_64.xml                     |  1 +
 .../caps_6.1.0.x86_64.xml                     |  1 +
 .../caps_6.2.0.aarch64.xml                    |  1 +
 .../qemucapabilitiesdata/caps_6.2.0.ppc64.xml |  1 +
 .../caps_6.2.0.x86_64.xml                     |  1 +
 .../caps_7.0.0.aarch64.xml                    |  1 +
 .../qemucapabilitiesdata/caps_7.0.0.ppc64.xml |  1 +
 .../caps_7.0.0.x86_64.xml                     |  1 +
 .../caps_7.1.0.x86_64.xml                     |  1 +
 18 files changed, 112 insertions(+), 1 deletion(-)

-- 
2.31.1