xen: make it easy to override hypervisor config

The hypervisor is now configured with Kconfig like busybox and the
kernel. This makes Xen behave like the busybox recipe by taking a
defconfig if the user has one provided with a bbappend.

Signed-off-by: Doug Goldstein <cardoe@cardoe.com>
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/recipes-extended/xen/xen.inc b/recipes-extended/xen/xen.inc
index c9ed73f0..1f70b3fd 100644
--- a/recipes-extended/xen/xen.inc
+++ b/recipes-extended/xen/xen.inc
@@ -841,6 +841,9 @@ do_stubs() {
 
 addtask stubs after do_configure before do_compile
 
+# Allow all hypervisor settings in a defconfig
+EXTRA_OEMAKE += "XEN_CONFIG_EXPERT=y"
+
 do_configure() {
 
     #./configure --enable-xsmpolicy does not set XSM_ENABLE must be done manually
@@ -848,6 +851,11 @@ do_configure() {
         echo "XSM_ENABLE := y" > ${S}/.config
     fi
 
+    if [ -f "${WORKDIR}/defconfig" ]; then
+        cp "${WORKDIR}/defconfig" "${B}/xen/.config" || \
+        bbfatal "Unable to copy defconfig to .config"
+    fi
+
     # do configure
     oe_runconf
 }