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authorVladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>2018-03-13 15:34:00 -0400
committerJohn Snow <jsnow@redhat.com>2018-03-13 17:05:41 -0400
commit4799502640e6a29d37dacb116a590fc03bacbb01 (patch)
treefc0d7233ce4741e9276f200e7d3917cd9c9d5dd4 /include/migration
parent4f43e9535bdd768bff4e30e229404407d44ad4c8 (diff)
migration: introduce postcopy-only pending
There would be savevm states (dirty-bitmap) which can migrate only in postcopy stage. The corresponding pending is introduced here. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-id: 20180313180320.339796-6-vsementsov@virtuozzo.com
Diffstat (limited to 'include/migration')
-rw-r--r--include/migration/register.h17
1 files changed, 15 insertions, 2 deletions
diff --git a/include/migration/register.h b/include/migration/register.h
index f4f7bdc177..9436a87678 100644
--- a/include/migration/register.h
+++ b/include/migration/register.h
@@ -37,8 +37,21 @@ typedef struct SaveVMHandlers {
int (*save_setup)(QEMUFile *f, void *opaque);
void (*save_live_pending)(QEMUFile *f, void *opaque,
uint64_t threshold_size,
- uint64_t *non_postcopiable_pending,
- uint64_t *postcopiable_pending);
+ uint64_t *res_precopy_only,
+ uint64_t *res_compatible,
+ uint64_t *res_postcopy_only);
+ /* Note for save_live_pending:
+ * - res_precopy_only is for data which must be migrated in precopy phase
+ * or in stopped state, in other words - before target vm start
+ * - res_compatible is for data which may be migrated in any phase
+ * - res_postcopy_only is for data which must be migrated in postcopy phase
+ * or in stopped state, in other words - after source vm stop
+ *
+ * Sum of res_postcopy_only, res_compatible and res_postcopy_only is the
+ * whole amount of pending data.
+ */
+
+
LoadStateHandler *load_state;
int (*load_setup)(QEMUFile *f, void *opaque);
int (*load_cleanup)(void *opaque);