It is not useful if we only have one management CPU.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>

---

Changes in v4: None
Changes in v3:
- use management cpu count + 1 for the min_cpus

Changes in v2:
- update the file header to indicate at least 2 harts are created

 hw/riscv/sifive_u.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/hw/riscv/sifive_u.c b/hw/riscv/sifive_u.c
index 0e5bbe7..a36cd77 100644
--- a/hw/riscv/sifive_u.c
+++ b/hw/riscv/sifive_u.c
@@ -10,8 +10,8 @@
  * 1) CLINT (Core Level Interruptor)
  * 2) PLIC (Platform Level Interrupt Controller)
  *
- * This board currently generates devicetree dynamically that indicates at most
- * five harts.
+ * This board currently generates devicetree dynamically that indicates at least
+ * two harts and up to five harts.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms and conditions of the GNU General Public License,
@@ -485,6 +485,7 @@ static void riscv_sifive_u_machine_init(MachineClass *mc)
     mc->desc = "RISC-V Board compatible with SiFive U SDK";
     mc->init = riscv_sifive_u_init;
     mc->max_cpus = SIFIVE_U_MANAGEMENT_CPU_COUNT + SIFIVE_U_COMPUTE_CPU_COUNT;
+    mc->min_cpus = SIFIVE_U_MANAGEMENT_CPU_COUNT + 1;
 }
 
 DEFINE_MACHINE("sifive_u", riscv_sifive_u_machine_init)
-- 
2.7.4