dev-virtio: don't set the 9p default root

It is better to force users to explicitly set this argument, since
it is unlikely that we will find one safe option for all users.

Change-Id: I612520a44efd205a029a40cd13402584d16e1d88
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/22828
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Bobby R. Bruce <bbruce@ucdavis.edu>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Jason Lowe-Power <jason@lowepower.com>

diff --git a/src/dev/virtio/VirtIO9P.py b/src/dev/virtio/VirtIO9P.py
index 55008ae9f3a22e68e4ec4ee790ac8064954eecde..7c5e132d6457bebf72ae806270e0a18960e7cb24 100644 (file)
--- a/src/dev/virtio/VirtIO9P.py
+++ b/src/dev/virtio/VirtIO9P.py
@@ -60,7 +60,7 @@ class VirtIO9PDiod(VirtIO9PProxy):
     cxx_header = 'dev/virtio/fs9p.hh'
 
     diod = Param.String("diod", "Path to diod, optionally in PATH")
-    root = Param.String("/tmp", "Path to export through diod")
+    root = Param.String("Path to export through diod")
     socketPath = Param.String("Unused socket to diod")
 
 class VirtIO9PSocket(VirtIO9PProxy):