[Qemu-devel] [PATCH 2/3] pc: Improve error message when die-id is omitted

[Eduardo Habkost <ehabkost@redhat.com>]

The error message when die-id is omitted doesn't make sense:

  $ qemu-system-x86_64 -smp 1,sockets=6,maxcpus=6 \
    -device qemu64-x86_64-cpu,socket-id=1,core-id=0,thread-id=0
  qemu-system-x86_64: -device qemu64-x86_64-cpu,socket-id=1,core-id=0,thread-id=0: \
    Invalid CPU die-id: 4294967295 must be in range 0:0

Fix it, so it will now read:

  qemu-system-x86_64: -device qemu64-x86_64-cpu,socket-id=1,core-id=0,thread-id=0: \
    CPU die-id is not set

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
---
 hw/i386/pc.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index 24b03bb49c..fb4ac5ca90 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -2410,6 +2410,10 @@ static void pc_cpu_pre_plug(HotplugHandler *hotplug_dev,
             error_setg(errp, "Invalid CPU socket-id: %u must be in range 0:%u",
                        cpu->socket_id, max_socket);
             return;
+        }
+        if (cpu->die_id < 0) {
+            error_setg(errp, "CPU die-id is not set");
+            return;
         } else if (cpu->die_id > pcms->smp_dies - 1) {
             error_setg(errp, "Invalid CPU die-id: %u must be in range 0:%u",
                        cpu->die_id, pcms->smp_dies - 1);
-- 
2.21.0