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-rw-r--r--config/arm.mk6
1 files changed, 6 insertions, 0 deletions
diff --git a/config/arm.mk b/config/arm.mk
index f64f0c1c83..f20fd2db0b 100644
--- a/config/arm.mk
+++ b/config/arm.mk
@@ -16,3 +16,9 @@ LDFLAGS_DIRECT_Linux = _linux
LDFLAGS_DIRECT += -marmelf$(LDFLAGS_DIRECT_$(XEN_OS))_eabi
CONFIG_LOAD_ADDRESS ?= 0x80000000
+
+# XXX: When running on the model there is no bootloader to provide a
+# device tree. It must be linked into Xen.
+ifndef CONFIG_DTB_FILE
+$(error CONFIG_DTB_FILE must be set to the absolute filename of a DTB)
+endif