[PATCH v9 03/15] s390x: protvirt: Add migration blocker

[Janosch Frank]

Migration is not yet supported.

Signed-off-by: Janosch Frank <fran...@linux.ibm.com>
Reviewed-by: David Hildenbrand <da...@redhat.com>
---
 hw/s390x/s390-virtio-ccw.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c
index 9569b777a0e1abd6..deb31e060052d279 100644
--- a/hw/s390x/s390-virtio-ccw.c
+++ b/hw/s390x/s390-virtio-ccw.c
@@ -42,6 +42,9 @@
 #include "hw/s390x/tod.h"
 #include "sysemu/sysemu.h"
 #include "hw/s390x/pv.h"
+#include "migration/blocker.h"
+
+static Error *pv_mig_blocker;
 
 S390CPU *s390_cpu_addr2state(uint16_t cpu_addr)
 {
@@ -321,15 +324,30 @@ static void s390_machine_unprotect(S390CcwMachineState 
*ms)
 {
     s390_pv_vm_disable();
     ms->pv = false;
+    migrate_del_blocker(pv_mig_blocker);
+    error_free_or_abort(&pv_mig_blocker);
 }
 
 static int s390_machine_protect(S390CcwMachineState *ms)
 {
+    Error *local_err = NULL;
     int rc;
 
+    error_setg(&pv_mig_blocker,
+               "protected VMs are currently not migrateable.");
+    rc = migrate_add_blocker(pv_mig_blocker, &local_err);
+    if (local_err) {
+        error_report_err(local_err);
+        error_free_or_abort(&pv_mig_blocker);
+        return rc;
+    }
+
     /* Create SE VM */
     rc = s390_pv_vm_enable();
     if (rc) {
+        error_report_err(local_err);
+        migrate_del_blocker(pv_mig_blocker);
+        error_free_or_abort(&pv_mig_blocker);
         return rc;
     }
 
-- 
2.25.1