[libvirt] [PATCH v2 17/20] qemu: Always send persistent XML during migration

[Jiri Denemark]

When persistent migration of a transient domain is requested but no
custom XML is passed to the migration API we would just let the
destination daemon make a persistent definition from the live definition
itself. This is not a problem now, but once the destination daemon
starts replacing the original CPU definition with the one from migration
cookie before starting a domain, it would need to add more ugly hacks to
reverse the operation. Let's just always send the persistent definition
in the cookie to make things a bit cleaner.

Signed-off-by: Jiri Denemark <jdenemar at redhat.com>
---

Notes:
    Version 2:
    - new patch (separated from the original 13/15)

 src/qemu/qemu_migration.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
index 2cd862875..40564ac63 100644
--- a/src/qemu/qemu_migration.c
+++ b/src/qemu/qemu_migration.c
@@ -3644,8 +3644,9 @@ qemuMigrationRun(virQEMUDriverPtr driver,
             if (!(persistDef = qemuMigrationPrepareDef(driver, persist_xml,
                                                        NULL, NULL)))
                 goto cleanup;
-        } else if (vm->newDef) {
-            if (!(persistDef = qemuDomainDefCopy(driver, vm->newDef,
+        } else {
+            virDomainDefPtr def = vm->newDef ? vm->newDef : vm->def;
+            if (!(persistDef = qemuDomainDefCopy(driver, def,
                                                  VIR_DOMAIN_XML_SECURE |
                                                  VIR_DOMAIN_XML_MIGRATABLE)))
                 goto cleanup;
-- 
2.13.0