[Qemu-ppc] [PATCH] ppc: virtex_ml507: QEMU_OPTION_dtb support for this machine.

[Efimov Vasily]

Signed-off-by: Efimov Vasily <address@hidden>
---
 hw/ppc/virtex_ml507.c |   13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/hw/ppc/virtex_ml507.c b/hw/ppc/virtex_ml507.c
index 08e77fb..a00f709 100644
--- a/hw/ppc/virtex_ml507.c
+++ b/hw/ppc/virtex_ml507.c
@@ -141,11 +141,18 @@ static int xilinx_load_device_tree(hwaddr addr,
 {
     char *path;
     int fdt_size;
-    void *fdt;
+    void *fdt = 0;
     int r;
+    const char *dtb_filename;
 
-    /* Try the local "ppc.dtb" override.  */
-    fdt = load_device_tree("ppc.dtb", &fdt_size);
+    dtb_filename = qemu_opt_get(qemu_get_machine_opts(), "dtb");
+    if (dtb_filename) {
+        fdt = load_device_tree(dtb_filename, &fdt_size);
+    }
+    if (!fdt) {
+        /* Try the local "ppc.dtb" override.  */
+        fdt = load_device_tree("ppc.dtb", &fdt_size);
+    }
     if (!fdt) {
         path = qemu_find_file(QEMU_FILE_TYPE_BIOS, BINARY_DEVICE_TREE_FILE);
         if (path) {
-- 
1.7.10.4