make init_raster wait for flr to avoid race with xenvm

diff --git a/target/generic/target_xenclient_skeleton/usr/bin/init_raster b/target/generic/target_xenclient_skeleton/usr/bin/init_raster
index 3a4605c4b3512b1f51903f5d81de5fd4b69e2cea..58af8cb7fa5e63c8ecb4c3b0e29874d4e66094be 100755 (executable)
--- 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))