[RESEND,v2,0/2] Enfore multifd and postcopy preempt setting

Message

Wang, Wei W June 6, 2023, 10:19 a.m. UTC

Setting the cap/params of multifd and postcopy preempt is expected
to be done before incoming starts, as the number of multifd channels or
postcopy ram channels is used by qemu_start_incoming_migration (to
listen on the number of pending connections).

Enfocre the cap/params of multifd and postcopy preempt to be set
before incoming. If not, disable the feature and return with error
messages to remind users to adjust the commands. Fix the
qtest/migration-test to do so.

v2 RESEND change:
- Only patch commit change with more explanations

Wei Wang (2):
  migration: enfocre multifd and postcopy preempt to be set before
    incoming
  qtest/migration-tests.c: use "-incoming defer" for postcopy tests

 migration/options.c          | 36 +++++++++++++++++++++++++++++++-----
 tests/qtest/migration-test.c | 10 ++++++++--
 2 files changed, 39 insertions(+), 7 deletions(-)