From b47d3af7559b6fe17a2a86a1f0bf69f386873753 Mon Sep 17 00:00:00 2001
From: Juan Quintela <quintela@redhat.com>
Date: Mon, 11 Jan 2016 12:40:22 +0000
Subject: vmstate: Introduce VMSTATE_VARRAY_MULTPLY

This allows to send a partial array where the size is another
structure field multiplied by a constant.

Signed-off-by: Juan Quintela <quintela@redhat.com>
[PMM: updated to current master]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
---
 migration/vmstate.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'migration')

diff --git a/migration/vmstate.c b/migration/vmstate.c
index f70fe59a3c..a7ad7f2216 100644
--- a/migration/vmstate.c
+++ b/migration/vmstate.c
@@ -28,6 +28,10 @@ static int vmstate_n_elems(void *opaque, VMStateField *field)
         n_elems = *(uint8_t *)(opaque+field->num_offset);
     }
 
+    if (field->flags & VMS_MULTIPLY_ELEMENTS) {
+        n_elems *= field->num;
+    }
+
     return n_elems;
 }
 
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