From cb938db96ef65769daaad88e5cf153d5f748f48a Mon Sep 17 00:00:00 2001
From: Pekka Enberg <penberg@kernel.org>
Date: Tue, 4 Jan 2011 19:30:06 +0200
Subject: [PATCH] kvm: Make virtio block device read-only

Signed-off-by: Pekka Enberg <penberg@kernel.org>
---
 blk-virtio.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/blk-virtio.c b/blk-virtio.c
index c484ca2..9b7190e 100644
--- a/blk-virtio.c
+++ b/blk-virtio.c
@@ -33,6 +33,7 @@ static struct device device = {
 		.blk_size		= 4096,
 	},
 	.host_features		= (1UL << VIRTIO_BLK_F_GEOMETRY)
+				| (1UL << VIRTIO_BLK_F_RO)
 				| (1UL << VIRTIO_BLK_F_BLK_SIZE),
 };