1 files changed, 12 insertions, 0 deletions
diff --git a/server/red_memslots.c b/server/red_memslots.c
index 1b3ec622..841ea4c0 100644
--- a/server/red_memslots.c
+++ b/server/red_memslots.c
@@ -118,6 +118,18 @@ unsigned long get_virt(RedMemSlotInfo *info, QXLPHYSICAL addr, uint32_t add_size
         *error = 1;
         return 0;
     }
+    {
+        static int memset_test = -1;
+        uint8_t *start = (uint8_t *)h_virt;
+
+        if (memset_test == -1) {
+            memset_test = (getenv("SPICE_GET_VIRT_MEMSET") != NULL);
+        }
+
+        if (memset_test > 0) {
+            memmove(start, start, add_size);
+        }
+    }
 
     return h_virt;
 }