[PATCH] hw/core/machine: Add the missing delimiter in cpu_slot_to_string()

[Yanan Wang]

The expected output string from cpu_slot_to_string() ought to be
like "socket-id: *, die-id: *, core-id: *, thread-id: *", so add
the missing ", " before "die-id". This affects the readability
of the error message.

Fixes: 176d2cda0d ("i386/cpu: Consolidate die-id validity in smp context")
Signed-off-by: Yanan Wang <wangyanan55@huawei.com>
---
 hw/core/machine.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/hw/core/machine.c b/hw/core/machine.c
index b8d95eec32..0a23ae3106 100644
--- a/hw/core/machine.c
+++ b/hw/core/machine.c
@@ -1157,6 +1157,9 @@ static char *cpu_slot_to_string(const CPUArchId *cpu)
         g_string_append_printf(s, "socket-id: %"PRId64, cpu->props.socket_id);
     }
     if (cpu->props.has_die_id) {
+        if (s->len) {
+            g_string_append_printf(s, ", ");
+        }
         g_string_append_printf(s, "die-id: %"PRId64, cpu->props.die_id);
     }
     if (cpu->props.has_core_id) {
-- 
2.19.1