[RFC PATCH v2 4/6] target/riscv: Add default value for misa property

[LIU Zhiwei <zhiwei_liu@linux.alibaba.com>]

Before this patch,
"
qemu-system-riscv64 -device rv64-riscv-cpu,v=true,help

...
v=<bool>               - Vector operations
...

"

After this patch,
"
v=<bool>               - Vector operations (default: false)
"

Signed-off-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>
---
 target/riscv/cpu.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c
index c2f102fae1..38838cd2c0 100644
--- a/target/riscv/cpu.c
+++ b/target/riscv/cpu.c
@@ -1728,6 +1728,7 @@ static void riscv_cpu_add_misa_properties(Object *cpu_obj)
     int i;
 
     for (i = 0; i < ARRAY_SIZE(misa_ext_cfgs); i++) {
+        ObjectProperty *op;
         RISCVCPUMisaExtConfig *misa_cfg = &misa_ext_cfgs[i];
         int bit = misa_cfg->misa_bit;
 
@@ -1739,14 +1740,13 @@ static void riscv_cpu_add_misa_properties(Object *cpu_obj)
             continue;
         }
 
-        object_property_add(cpu_obj, misa_cfg->name, "bool",
-                            cpu_get_misa_ext_cfg,
-                            cpu_set_misa_ext_cfg,
-                            NULL, (void *)misa_cfg);
+        op = object_property_add(cpu_obj, misa_cfg->name, "bool",
+                                 cpu_get_misa_ext_cfg,
+                                 cpu_set_misa_ext_cfg,
+                                 NULL, (void *)misa_cfg);
         object_property_set_description(cpu_obj, misa_cfg->name,
                                         misa_cfg->description);
-        object_property_set_bool(cpu_obj, misa_cfg->name,
-                                 misa_cfg->enabled, NULL);
+        object_property_set_default_bool(op, misa_cfg->enabled);
     }
 }
 
-- 
2.17.1