diff options
| author | Peter Xu <peterx@redhat.com> | 2022-07-07 14:55:11 -0400 |
|---|---|---|
| committer | Dr. David Alan Gilbert <dgilbert@redhat.com> | 2022-07-20 12:15:08 +0100 |
| commit | c8750de11810ddca96026fc0edf87b64c1350f76 (patch) | |
| tree | 86c63105e081e08465ee8d93e849c2275b592f66 /migration/migration.c | |
| parent | d0edb8a173b54cae4571c9040c88cf0c5a1c6e12 (diff) | |
migration: Add property x-postcopy-preempt-break-huge
Add a property field that can conditionally disable the "break sending huge
page" behavior in postcopy preemption. By default it's enabled.
It should only be used for debugging purposes, and we should never remove
the "x-" prefix.
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Manish Mishra <manish.mishra@nutanix.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20220707185511.27366-1-peterx@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Diffstat (limited to 'migration/migration.c')
| -rw-r--r-- | migration/migration.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/migration/migration.c b/migration/migration.c index 427d4de185..864164ad96 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -4363,6 +4363,8 @@ static Property migration_properties[] = { DEFINE_PROP_SIZE("announce-step", MigrationState, parameters.announce_step, DEFAULT_MIGRATE_ANNOUNCE_STEP), + DEFINE_PROP_BOOL("x-postcopy-preempt-break-huge", MigrationState, + postcopy_preempt_break_huge, true), /* Migration capabilities */ DEFINE_PROP_MIG_CAP("x-xbzrle", MIGRATION_CAPABILITY_XBZRLE), |