From: Asias He <asias.hejun@gmail.com>
Date: Fri, 24 Aug 2012 11:29:40 +0000 (+0800)
Subject: kvm tools: Export DISPLAY ENV as our default host ip address
X-Git-Tag: next-20120904~31^2~4^2~1
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=ce3450f368855f270a8877650844077479737de5;p=karo-tx-linux.git

kvm tools: Export DISPLAY ENV as our default host ip address

It is useful to run a X program in guest and display it on host.

1) Make host's x server listen to localhost:6000
   host_shell$ socat -d -d TCP-LISTEN:6000,fork,bind=localhost \
               UNIX-CONNECT:/tmp/.X11-unix/X0

2) Start the guest and run X program
   host_shell$ lkvm run -k /boot/bzImage
  guest_shell$ xlogo

Signed-off-by: Asias He <asias.hejun@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
---

diff --git a/tools/kvm/guest/init.c b/tools/kvm/guest/init.c
index 6a2e1cdbb0d3..44e7db811c47 100644
--- a/tools/kvm/guest/init.c
+++ b/tools/kvm/guest/init.c
@@ -12,7 +12,7 @@
 static int run_process(char *filename)
 {
 	char *new_argv[] = { filename, NULL };
-	char *new_env[] = { "TERM=linux", NULL };
+	char *new_env[] = { "TERM=linux", "DISPLAY=192.168.33.1:0", NULL };
 
 	return execve(filename, new_argv, new_env);
 }