commit e092daacee330b8f758bceaf1e9a0ccfec2e00c8
Author: Jim Fehlig <jfehlig@suse.com>
Date:   Fri Jan 17 10:36:32 2020 -0700

    lib: Prohibit parallel connections with tunneled migration
    
    As discussed on the developer list, parallel migration connections
    are not compatible with tunneled migration
    
    https://www.redhat.com/archives/libvir-list/2020-January/msg00463.html
    
    Prohibit the concurrent use of parallel and tunneled migration options.
    
    Signed-off-by: Jim Fehlig <jfehlig@suse.com>
    Reviewed-by: Ján Tomko <jtomko@redhat.com>

Index: libvirt-6.0.0/src/libvirt-domain.c
===================================================================
--- libvirt-6.0.0.orig/src/libvirt-domain.c
+++ libvirt-6.0.0/src/libvirt-domain.c
@@ -3548,6 +3548,10 @@ virDomainMigrate(virDomainPtr domain,
                              VIR_MIGRATE_NON_SHARED_INC,
                              error);
 
+    VIR_EXCLUSIVE_FLAGS_GOTO(VIR_MIGRATE_TUNNELLED,
+                             VIR_MIGRATE_PARALLEL,
+                             error);
+
     if (flags & VIR_MIGRATE_OFFLINE) {
         if (!VIR_DRV_SUPPORTS_FEATURE(domain->conn->driver, domain->conn,
                                       VIR_DRV_FEATURE_MIGRATION_OFFLINE)) {
@@ -3703,6 +3707,10 @@ virDomainMigrate2(virDomainPtr domain,
                              VIR_MIGRATE_NON_SHARED_INC,
                              error);
 
+    VIR_EXCLUSIVE_FLAGS_GOTO(VIR_MIGRATE_TUNNELLED,
+                             VIR_MIGRATE_PARALLEL,
+                             error);
+
     if (flags & VIR_MIGRATE_OFFLINE) {
         if (!VIR_DRV_SUPPORTS_FEATURE(domain->conn->driver, domain->conn,
                                       VIR_DRV_FEATURE_MIGRATION_OFFLINE)) {
@@ -4089,6 +4097,10 @@ virDomainMigrateToURI(virDomainPtr domai
     virCheckReadOnlyGoto(domain->conn->flags, error);
     virCheckNonNullArgGoto(duri, error);
 
+    VIR_EXCLUSIVE_FLAGS_GOTO(VIR_MIGRATE_TUNNELLED,
+                             VIR_MIGRATE_PARALLEL,
+                             error);
+
     if (virDomainMigrateUnmanagedCheckCompat(domain, flags) < 0)
         goto error;
 
@@ -4161,6 +4173,10 @@ virDomainMigrateToURI2(virDomainPtr doma
     virCheckDomainReturn(domain, -1);
     virCheckReadOnlyGoto(domain->conn->flags, error);
 
+    VIR_EXCLUSIVE_FLAGS_GOTO(VIR_MIGRATE_TUNNELLED,
+                             VIR_MIGRATE_PARALLEL,
+                             error);
+
     if (virDomainMigrateUnmanagedCheckCompat(domain, flags) < 0)
         goto error;
 
@@ -4234,6 +4250,10 @@ virDomainMigrateToURI3(virDomainPtr doma
     virCheckDomainReturn(domain, -1);
     virCheckReadOnlyGoto(domain->conn->flags, error);
 
+    VIR_EXCLUSIVE_FLAGS_GOTO(VIR_MIGRATE_TUNNELLED,
+                             VIR_MIGRATE_PARALLEL,
+                             error);
+
     if (virDomainMigrateUnmanagedCheckCompat(domain, flags) < 0)
         goto error;