qapi: Add VFIO devices migration stats in Migration stats

Added amount of bytes transferred to the VM at destination by all VFIO
devices

Signed-off-by: Kirti Wankhede <kwankhede@nvidia.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>

1 files changed, 17 insertions, 0 deletions

diff --git a/migration/migration.c b/migration/migration.c
index 9bb4fee5ac..3263aa55a9 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -57,6 +57,10 @@
 #include "qemu/queue.h"
 #include "multifd.h"
 
+#ifdef CONFIG_VFIO
+#include "hw/vfio/vfio-common.h"
+#endif
+
 #define MAX_THROTTLE  (128 << 20)      /* Migration transfer speed throttling */
 
 /* Amount of time to allocate to each "chunk" of bandwidth-throttled
@@ -1037,6 +1041,17 @@ static void populate_disk_info(MigrationInfo *info)
     }
 }
 
+static void populate_vfio_info(MigrationInfo *info)
+{
+#ifdef CONFIG_VFIO
+    if (vfio_mig_active()) {
+        info->has_vfio = true;
+        info->vfio = g_malloc0(sizeof(*info->vfio));
+        info->vfio->transferred = vfio_mig_bytes_transferred();
+    }
+#endif
+}
+
 static void fill_source_migration_info(MigrationInfo *info)
 {
     MigrationState *s = migrate_get_current();
@@ -1061,6 +1076,7 @@ static void fill_source_migration_info(MigrationInfo *info)
         populate_time_info(info, s);
         populate_ram_info(info, s);
         populate_disk_info(info);
+        populate_vfio_info(info);
         break;
     case MIGRATION_STATUS_COLO:
         info->has_status = true;
@@ -1069,6 +1085,7 @@ static void fill_source_migration_info(MigrationInfo *info)
     case MIGRATION_STATUS_COMPLETED:
         populate_time_info(info, s);
         populate_ram_info(info, s);
+        populate_vfio_info(info);
         break;
     case MIGRATION_STATUS_FAILED:
         info->has_status = true;