[PATCH 0/2] dump-guest-memory: Add blocker for migration

[Peter Xu]

Both dump-guest-memory and live migration have vm state cached internally.
Allowing them to happen together means the vm state can be messed up.  Simply
block live migration for dump-guest-memory.

One trivial thing to mention is we should still allow dump-guest-memory even if
-only-migratable is specified, because that flag should majorly be used to
guarantee not adding devices that will block migration by accident.  Dump guest
memory is not like that - it'll only block for the seconds when it's dumping.

Thanks,

Peter Xu (2):
  migration: Add migrate_add_blocker_internal()
  dump-guest-memory: Block live migration

 dump/dump.c                 | 20 +++++++++++++++-----
 include/migration/blocker.h | 16 ++++++++++++++++
 include/sysemu/dump.h       |  1 +
 migration/migration.c       | 21 +++++++++++++--------
 4 files changed, 45 insertions(+), 13 deletions(-)

-- 
2.31.1