migrate_start_postcopy: Command to trigger transition to postcopy

[mirror_qemu.git] / qmp-commands.hx

diff --git a/qmp-commands.hx b/qmp-commands.hx
index 2b52980cfc2f80904a3c7375a382b638e8a51161..7f85d4046c1fcec7d225b7f8d32376593c7b6a29 100644 (file)
--- a/qmp-commands.hx
+++ b/qmp-commands.hx
@@ -717,6 +717,25 @@ Example:
 <- { "return": {} }
 
 EQMP
+    {
+        .name       = "migrate-start-postcopy",
+        .args_type  = "",
+        .mhandler.cmd_new = qmp_marshal_migrate_start_postcopy,
+    },
+
+SQMP
+migrate-start-postcopy
+----------------------
+
+Switch an in-progress migration to postcopy mode. Ignored after the end of
+migration (or once already in postcopy).
+
+Example:
+-> { "execute": "migrate-start-postcopy" }
+<- { "return": {} }
+
+EQMP
+
     {
         .name       = "query-migrate-cache-size",
         .args_type  = "",
@@ -2520,8 +2539,8 @@ Each json-object contain the following:
     - "wr_total_time_ns": total time spend on writes in nano-seconds (json-int)
     - "rd_total_time_ns": total time spend on reads in nano-seconds (json-int)
     - "flush_total_time_ns": total time spend on cache flushes in nano-seconds (json-int)
-    - "wr_highest_offset": Highest offset of a sector written since the
-                           BlockDriverState has been opened (json-int)
+    - "wr_highest_offset": The offset after the greatest byte written to the
+                           BlockDriverState since it has been opened (json-int)
     - "rd_merged": number of read requests that have been merged into
                    another request (json-int)
     - "wr_merged": number of write requests that have been merged into