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-rw-r--r--hw/core/machine.c4
-rw-r--r--migration/options.c2
-rw-r--r--qapi/migration.json6
3 files changed, 7 insertions, 5 deletions
diff --git a/hw/core/machine.c b/hw/core/machine.c
index 9ac5d5389a..0e9d646b61 100644
--- a/hw/core/machine.c
+++ b/hw/core/machine.c
@@ -32,7 +32,9 @@
 #include "hw/virtio/virtio-net.h"
 #include "audio/audio.h"
 
-GlobalProperty hw_compat_8_2[] = {};
+GlobalProperty hw_compat_8_2[] = {
+    { "migration", "zero-page-detection", "legacy"},
+};
 const size_t hw_compat_8_2_len = G_N_ELEMENTS(hw_compat_8_2);
 
 GlobalProperty hw_compat_8_1[] = {
diff --git a/migration/options.c b/migration/options.c
index 8f2a3a2fa5..9ed2fe4bee 100644
--- a/migration/options.c
+++ b/migration/options.c
@@ -181,7 +181,7 @@ Property migration_properties[] = {
                       MIG_MODE_NORMAL),
     DEFINE_PROP_ZERO_PAGE_DETECTION("zero-page-detection", MigrationState,
                        parameters.zero_page_detection,
-                       ZERO_PAGE_DETECTION_LEGACY),
+                       ZERO_PAGE_DETECTION_MULTIFD),
 
     /* Migration capabilities */
     DEFINE_PROP_MIG_CAP("x-xbzrle", MIGRATION_CAPABILITY_XBZRLE),
diff --git a/qapi/migration.json b/qapi/migration.json
index 2684e4e9ac..aa1b39bce1 100644
--- a/qapi/migration.json
+++ b/qapi/migration.json
@@ -909,7 +909,7 @@
 #        (Since 8.2)
 #
 # @zero-page-detection: Whether and how to detect zero pages.
-#     See description in @ZeroPageDetection.  Default is 'legacy'.
+#     See description in @ZeroPageDetection.  Default is 'multifd'.
 #     (since 9.0)
 #
 # Features:
@@ -1106,7 +1106,7 @@
 #        (Since 8.2)
 #
 # @zero-page-detection: Whether and how to detect zero pages.
-#     See description in @ZeroPageDetection.  Default is 'legacy'.
+#     See description in @ZeroPageDetection.  Default is 'multifd'.
 #     (since 9.0)
 #
 # Features:
@@ -1339,7 +1339,7 @@
 #        (Since 8.2)
 #
 # @zero-page-detection: Whether and how to detect zero pages.
-#     See description in @ZeroPageDetection.  Default is 'legacy'.
+#     See description in @ZeroPageDetection.  Default is 'multifd'.
 #     (since 9.0)
 #
 # Features: