diff --git a/25941-pygrub_always_append_--args.patch b/25941-pygrub_always_append_--args.patch
new file mode 100644
index 0000000..9161b54
--- /dev/null
+++ b/25941-pygrub_always_append_--args.patch
@@ -0,0 +1,44 @@
+changeset:   25941:795c493fe561
+user:        Olaf Hering <olaf@aepfle.de>
+date:        Tue Sep 25 11:03:51 2012 +0100
+files:       tools/pygrub/src/pygrub
+description:
+pygrub: always append --args
+
+If a bootloader entry in menu.lst has no additional kernel command line
+options listed and the domU.cfg has 'bootargs="--args=something"' the
+additional arguments from the config file are not passed to the kernel.
+The reason for that incorrect behaviour is that run_grub appends arg
+only if the parsed config file has arguments listed.
+
+Fix this by appending args from image section and the config file separatly.
+To avoid adding to a NoneType initialize grubcfg['args'] to an empty string.
+This does not change behaviour but simplifies the code which appends the
+string.
+
+Signed-off-by: Olaf Hering <olaf@aepfle.de>
+Acked-by: Ian Campbell <ian.campbell@citrix.com>
+Committed-by: Ian Campbell <ian.campbell@citrix.com>
+
+
+diff -r c8d65d91a6f2 -r 795c493fe561 tools/pygrub/src/pygrub
+--- a/tools/pygrub/src/pygrub	Tue Sep 25 08:38:14 2012 +0200
++++ b/tools/pygrub/src/pygrub	Tue Sep 25 11:03:51 2012 +0100
+@@ -615,13 +615,15 @@ def run_grub(file, entry, fs, arg):
+     except IndexError:
+         img = g.cf.images[0]
+ 
+-    grubcfg = { "kernel": None, "ramdisk": None, "args": None }
++    grubcfg = { "kernel": None, "ramdisk": None, "args": "" }
+ 
+     grubcfg["kernel"] = img.kernel[1]
+     if img.initrd:
+         grubcfg["ramdisk"] = img.initrd[1]
+     if img.args:
+-        grubcfg["args"] = img.args + " " + arg
++        grubcfg["args"] += img.args
++    if arg:
++        grubcfg["args"] += " " + args
+ 
+     return grubcfg
+ 
diff --git a/xen.changes b/xen.changes
index d965a26..dcab324 100644
--- a/xen.changes
+++ b/xen.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Tue Sep 25 14:24:29 CEST 2012 - ohering@suse.de
+
+- pygrub: always append --args
+  25941-pygrub_always_append_--args.patch
+
 -------------------------------------------------------------------
 Mon Sep 24 16:41:58 CEST 2012 - ohering@suse.de
 
diff --git a/xen.spec b/xen.spec
index a9462f1..77256e9 100644
--- a/xen.spec
+++ b/xen.spec
@@ -185,6 +185,7 @@ Patch25866:     25866-sercon-ns16550-pci-irq.patch
 Patch25867:     25867-sercon-ns16550-parse.patch
 Patch25874:     25874-x86-EFI-chain-cfg.patch
 Patch25909:     25909-xenpm-consistent.patch
+Patch25941:     25941-pygrub_always_append_--args.patch
 # Upstream qemu patches
 # Our patches
 Patch301:       xend-config.diff
@@ -668,6 +669,7 @@ tar xfj %{SOURCE6} -C $RPM_BUILD_DIR/%{xen_build_dir}/tools
 %patch25867 -p1
 %patch25874 -p1
 %patch25909 -p1
+%patch25941 -p1
 # Qemu
 # Our patches
 %patch301 -p1