[PATCH 3/5] migration: Disallow xbzrle with postcopy

[Peter Xu]

It's not supported since the 1st day, as ram_load_postcopy does not handle
RAM_SAVE_FLAG_XBZRLE.  Mark it disabled explicitly.

Signed-off-by: Peter Xu <pet...@redhat.com>
---
 migration/migration.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/migration/migration.c b/migration/migration.c
index bb8bbddfe4..fb4066dfb4 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -1268,6 +1268,11 @@ static bool migrate_caps_check(bool *cap_list,
             error_setg(errp, "Postcopy is not compatible with ignore-shared");
             return false;
         }
+
+        if (cap_list[MIGRATION_CAPABILITY_XBZRLE]) {
+            error_setg(errp, "Postcopy is not compatible with xbzrle");
+            return false;
+        }
     }
 
     if (cap_list[MIGRATION_CAPABILITY_BACKGROUND_SNAPSHOT]) {
-- 
2.32.0