From 6dcf40809e60e1589f0262bedcabbca78060cce0 Mon Sep 17 00:00:00 2001
From: Mark McLoughlin <markmc@redhat.com>
Date: Thu, 11 Dec 2008 09:36:59 +0000
Subject: [PATCH] Virtio: enable VIRTIO_ZERO_COPY

Fixes an oops in the bounce buffer malloc in virtqueue_pop()
I have seen twice so far. We still need to track this down,
but it's very hard to reproduce.

Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
---
 hw/virtio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/virtio.c b/hw/virtio.c
index 16356e897a..1d06fcc91e 100644
--- a/hw/virtio.c
+++ b/hw/virtio.c
@@ -16,7 +16,7 @@
 #include "virtio.h"
 #include "sysemu.h"
 
-//#define VIRTIO_ZERO_COPY
+#define VIRTIO_ZERO_COPY
 
 /* from Linux's linux/virtio_pci.h */
 
-- 
2.11.4.GIT