We can easily test this, just like PCI. On s390x, cpu unplug is not
supported. On x86 ACPI, cpu unplug requires guest interaction to work, so
it can't be tested that easily. We might add tests for ACPI later.

Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
---
 tests/device-plug-test.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/tests/device-plug-test.c b/tests/device-plug-test.c
index d1a6c94af2..0262ad6be6 100644
--- a/tests/device-plug-test.c
+++ b/tests/device-plug-test.c
@@ -101,6 +101,21 @@ static void test_ccw_unplug(void)
     qtest_quit(qtest);
 }
 
+static void test_spapr_cpu_unplug_request(void)
+{
+    QTestState *qtest;
+
+    qtest = qtest_initf("-cpu power9_v2.0 -smp 1,maxcpus=2 "
+                        "-device power9_v2.0-spapr-cpu-core,core-id=1,id=dev0");
+
+    /* similar to test_pci_unplug_request */
+    device_del_request(qtest, "dev0");
+    system_reset(qtest);
+    wait_device_deleted_event(qtest, "dev0");
+
+    qtest_quit(qtest);
+}
+
 int main(int argc, char **argv)
 {
     const char *arch = qtest_get_arch();
@@ -120,5 +135,10 @@ int main(int argc, char **argv)
                        test_ccw_unplug);
     }
 
+    if (!strcmp(arch, "ppc64")) {
+        qtest_add_func("/device-plug/spapr-cpu-unplug-request",
+                       test_spapr_cpu_unplug_request);
+    }
+
     return g_test_run();
 }
-- 
2.17.2