tests/device-plug: Add memory unplug request test for spapr

We can easily test this, just like PCI. On x86 ACPI, we need guest
interaction to make it work, so it is not that easy to test. We might
add tests for that later on.

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>
Message-Id: <20190218092202.26683-7-david@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

tests/device-plug-test.c

@@ -116,6 +116,22 @@ static void test_spapr_cpu_unplug_request(void)
     qtest_quit(qtest);
 }
 
+static void test_spapr_memory_unplug_request(void)
+{
+    QTestState *qtest;
+
+    qtest = qtest_initf("-m 256M,slots=1,maxmem=768M "
+                        "-object memory-backend-ram,id=mem0,size=512M "
+                        "-device pc-dimm,id=dev0,memdev=mem0");
+
+    /* 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();
@@ -138,6 +154,8 @@ int main(int argc, char **argv)
     if (!strcmp(arch, "ppc64")) {
         qtest_add_func("/device-plug/spapr-cpu-unplug-request",
                        test_spapr_cpu_unplug_request);
+        qtest_add_func("/device-plug/spapr-memory-unplug-request",
+                       test_spapr_memory_unplug_request);
     }
 
     return g_test_run();