hw/ppc: include fdt helper routine in a common file

spapr_pci would also be a good candidate but the macro _FDT is
slightly different. It returns and does not exit.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

1 files changed, 23 insertions, 0 deletions

diff --git a/include/hw/ppc/fdt.h b/include/hw/ppc/fdt.h
new file mode 100644
index 0000000000..fff3e1b577
--- /dev/null
+++ b/include/hw/ppc/fdt.h
@@ -0,0 +1,23 @@
+/*
+ * QEMU PowerPC helper routines for the device tree.
+ *
+ * Copyright (C) 2016 IBM Corp.
+ *
+ * This code is licensed under the GPL version 2 or later. See the
+ * COPYING file in the top-level directory.
+ */
+
+#ifndef PPC_FDT_H
+#define PPC_FDT_H
+
+#define _FDT(exp)                               \
+    do { \
+        int ret = (exp);                                           \
+        if (ret < 0) {                                             \
+            fprintf(stderr, "qemu: error creating device tree: %s: %s\n", \
+                    #exp, fdt_strerror(ret));                      \
+            exit(1);                                               \
+        }                                                          \
+    } while (0)
+
+#endif /* PPC_FDT_H */