1 files changed, 1 insertions, 0 deletions
diff --git a/hw/r2d.c b/hw/r2d.c
index 855aa414ff..58c93e8993 100644
--- a/hw/r2d.c
+++ b/hw/r2d.c
@@ -168,4 +168,5 @@ QEMUMachine r2d_machine = {
     .desc = "r2d-plus board",
     .init = r2d_init,
     .ram_require = SDRAM_SIZE | RAMSIZE_FIXED,
+    .max_cpus = 1,
 };