vmstate: Add support for multiplying size for a constant

When the size that we want to transmit is in another field, but in an
unit different that bytes

Signed-off-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/savevm.c b/savevm.c
index 1125ef2d5..17a6c9705 100644
--- a/savevm.c
+++ b/savevm.c
@@ -1147,6 +1147,9 @@ int vmstate_load_state(QEMUFile *f, const VMStateDescription *vmsd,
 
             if (field->flags & VMS_VBUFFER) {
                 size = *(int32_t *)(opaque+field->size_offset);
+                if (field->flags & VMS_MULTIPLY) {
+                    size *= field->size;
+                }
             }
             if (field->flags & VMS_ARRAY) {
                 n_elems = field->num;
@@ -1200,6 +1203,9 @@ void vmstate_save_state(QEMUFile *f, const VMStateDescription *vmsd,
 
             if (field->flags & VMS_VBUFFER) {
                 size = *(int32_t *)(opaque+field->size_offset);
+                if (field->flags & VMS_MULTIPLY) {
+                    size *= field->size;
+                }
             }
             if (field->flags & VMS_ARRAY) {
                 n_elems = field->num;