From f1a03614c5f74927a71365b2c10fd5e8314e5490 Mon Sep 17 00:00:00 2001
From: James Mckenzie <jamesmck@taoand.cam.xci-test.com>
Date: Tue, 8 Dec 2009 02:29:45 +0000
Subject: [PATCH] make init_raster wait for flr to avoid race with xenvm

---
 .../target_xenclient_skeleton/usr/bin/init_raster   | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/target/generic/target_xenclient_skeleton/usr/bin/init_raster b/target/generic/target_xenclient_skeleton/usr/bin/init_raster
index 3a4605c..58af8cb 100755
--- a/target/generic/target_xenclient_skeleton/usr/bin/init_raster
+++ b/target/generic/target_xenclient_skeleton/usr/bin/init_raster
@@ -1,5 +1,18 @@
 #!/bin/sh
 
+WAIT=$1
+
+IGFX="0:2.0"
+CMD="0x4.w"
+
+if [ "${WAIT}" -eq 1 ]; then
+    echo waiting for flr
+    while [ $( setpci -s ${IGFX} ${CMD} ) != '0000' ]; do
+	echo no flr detected
+	sleep 1
+    done
+fi
+
 # Clear vga memory graphic + text
 dd if=/dev/zero of=/dev/mem seek=$((0xa000)) bs=1 count=$((0x2000))
 
-- 
2.39.5