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-rw-r--r--block_int.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/block_int.h b/block_int.h
index 3e4b4a387b..f95c80b906 100644
--- a/block_int.h
+++ b/block_int.h
@@ -158,6 +158,9 @@ struct BlockDriverState {
/* the memory alignment required for the buffers handled by this driver */
int buffer_alignment;
+ /* do we need to tell the quest if we have a volatile write cache? */
+ int enable_write_cache;
+
/* NOTE: the following infos are only hints for real hardware
drivers. They are not used by the block driver */
int cyls, heads, secs, translation;