xen-image-minimal: fix aarch64 build for non-qemuboot-enabled machines

The qemuboot device tree generation task in qemuboot-xen-dtb.bbclass
requires the QB_SYSTEM_NAME variable to be set to identify the Qemu
binary to use. Skip the task if it is not set.

Reported-and-tested-by: Jon Mason <jdmason@kudzu.us>
Signed-off-by: Christopher Clark <christopher.clark@starlab.io>
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/classes/qemuboot-xen-dtb.bbclass b/classes/qemuboot-xen-dtb.bbclass
index 08f9b02e..2d37e913 100644
--- a/classes/qemuboot-xen-dtb.bbclass
+++ b/classes/qemuboot-xen-dtb.bbclass
@@ -176,7 +176,7 @@ do_write_xen_qemuboot_dtb() {
     # Not all architectures qemuboot with a device tree binary, so check
     # to see if one is needed. This allows this bbclass file to be used
     # in the same image recipe for multiple architectures.
-    if [ -n "${QB_DTB}" ] ; then
+    if [ -n "${QB_DTB}" ] && [ -n "${QB_SYSTEM_NAME}" ] ; then
         generate_xen_qemuboot_dtb
     fi
 }