Merge tag 'migration-20231017-pull-request' of https://gitlab.com/juan.quintela/qemu into staging

Migration Pull request (20231017)

Hi

Same that yesterday one, except:
- rebased to latest (clean rebase)
- fixed 64 bits read on big endian host

CI: https://gitlab.com/juan.quintela/qemu/-/pipelines/1039214198

Please, apply.

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# gpg:                using RSA key 1899FF8EDEBF58CCEE034B82F487EF185872D723
# gpg: Good signature from "Juan Quintela <quintela@redhat.com>" [full]
# gpg:                 aka "Juan Quintela <quintela@trasno.org>" [full]
# Primary key fingerprint: 1899 FF8E DEBF 58CC EE03  4B82 F487 EF18 5872 D723

* tag 'migration-20231017-pull-request' of https://gitlab.com/juan.quintela/qemu: (38 commits)
  migration/multifd: Clarify Error usage in multifd_channel_connect
  migration/multifd: Unify multifd_send_thread error paths
  migration/multifd: Remove direct "socket" references
  migration/ram: Merge save_zero_page functions
  migration/ram: Move xbzrle zero page handling into save_zero_page
  migration/ram: Stop passing QEMUFile around in save_zero_page
  migration/ram: Remove RAMState from xbzrle_cache_zero_page
  migration/ram: Refactor precopy ram loading code
  multifd: reset next_packet_len after sending pages
  multifd: fix counters in multifd_send_thread
  migration: check for rate_limit_max for RATE_LIMIT_DISABLED
  migration: Improve json and formatting
  migration/rdma: Remove all "ret" variables that are used only once
  migration/rdma: Declare for index variables local
  migration/rdma: Use i as for index instead of idx
  migration/rdma: Check sooner if we are in postcopy for save_page()
  migration/rdma: Remove qemu_ prefix from exported functions
  migration/rdma: Move rdma constants from qemu-file.h to rdma.h
  qemu-file: Remove QEMUFileHooks
  migration/rdma: Create rdma_control_save_page()
  ...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

1 files changed, 14 insertions, 0 deletions

diff --git a/migration/migration-hmp-cmds.c b/migration/migration-hmp-cmds.c
index 5b25ba24f7..d206700a43 100644
--- a/migration/migration-hmp-cmds.c
+++ b/migration/migration-hmp-cmds.c
@@ -321,6 +321,10 @@ void hmp_info_migrate_parameters(Monitor *mon, const QDict *qdict)
         monitor_printf(mon, "%s: %" PRIu64 " bytes/second\n",
             MigrationParameter_str(MIGRATION_PARAMETER_MAX_BANDWIDTH),
             params->max_bandwidth);
+        assert(params->has_avail_switchover_bandwidth);
+        monitor_printf(mon, "%s: %" PRIu64 " bytes/second\n",
+            MigrationParameter_str(MIGRATION_PARAMETER_AVAIL_SWITCHOVER_BANDWIDTH),
+            params->avail_switchover_bandwidth);
         assert(params->has_downtime_limit);
         monitor_printf(mon, "%s: %" PRIu64 " ms\n",
             MigrationParameter_str(MIGRATION_PARAMETER_DOWNTIME_LIMIT),
@@ -574,6 +578,16 @@ void hmp_migrate_set_parameter(Monitor *mon, const QDict *qdict)
         }
         p->max_bandwidth = valuebw;
         break;
+    case MIGRATION_PARAMETER_AVAIL_SWITCHOVER_BANDWIDTH:
+        p->has_avail_switchover_bandwidth = true;
+        ret = qemu_strtosz_MiB(valuestr, NULL, &valuebw);
+        if (ret < 0 || valuebw > INT64_MAX
+            || (size_t)valuebw != valuebw) {
+            error_setg(&err, "Invalid size %s", valuestr);
+            break;
+        }
+        p->avail_switchover_bandwidth = valuebw;
+        break;
     case MIGRATION_PARAMETER_DOWNTIME_LIMIT:
         p->has_downtime_limit = true;
         visit_type_size(v, param, &p->downtime_limit, &err);