From 6b2844c6b241b6f64746c4c42ace7910d247baed Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <eelco.dolstra@logicblox.com>
Date: Sun, 12 Sep 2010 22:56:54 +0000
Subject: [PATCH] * Mount /proc/xen.

svn path=/nixos/trunk/; revision=23741
---
 modules/virtualisation/xen.nix | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/modules/virtualisation/xen.nix b/modules/virtualisation/xen.nix
index 5e8bb902b2a7..b2218fb3fddd 100644
--- a/modules/virtualisation/xen.nix
+++ b/modules/virtualisation/xen.nix
@@ -71,6 +71,15 @@ let cfg = config.virtualisation.xen; in
         echo "${toString cfg.bootParams}" > $out/xen-params
       '';
 
+    # Mount the /proc/xen pseudo-filesystem.
+    system.activationScripts.xen = noDepEntry
+      ''
+        if [ -d /proc/xen ]; then
+            ${pkgs.sysvtools}/bin/mountpoint -q /proc/xen || \
+                ${pkgs.utillinux}/bin/mount -t xenfs none /proc/xen
+        fi
+      '';
+
   };
 
 }