vmstate: add no_migrate flag to VMStateDescription

This allows to easily tag devices as non-migratable,
so any attempt to migrate a virtual machine with the
device in question active will make migration fail.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/hw/hw.h b/hw/hw.h
index 9dd7096..df6ca65 100644
--- a/hw/hw.h
+++ b/hw/hw.h
@@ -324,6 +324,7 @@ typedef struct VMStateSubsection {
 
 struct VMStateDescription {
     const char *name;
+    int unmigratable;
     int version_id;
     int minimum_version_id;
     int minimum_version_id_old;