Add cpu hotplug testcase support for LoongArch system, it passes to
run with command "make check-qtest-loongarch64" as following:
  qemu:qtest+qtest-loongarch64 / qtest-loongarch64/cpu-plug-test OK 0.38s 1 subtests passed

Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: Thomas Huth <thuth@redhat.com>
---
v2 ... v3:
  1. Remove redundant check with machine type since it is constant
     string.

v1 ... v2:
  1. Call test function add_loongarch_test_case() directly rather than
     qtest_cb_for_every_machine() since compatible machine is not
     supported on LoongArch system.
  2. Add architecture specified test case in separate line.
---
 tests/qtest/cpu-plug-test.c | 24 ++++++++++++++++++++++++
 tests/qtest/meson.build     |  3 ++-
 2 files changed, 26 insertions(+), 1 deletion(-)

diff --git a/tests/qtest/cpu-plug-test.c b/tests/qtest/cpu-plug-test.c
index 6633abfc10..44d704680b 100644
--- a/tests/qtest/cpu-plug-test.c
+++ b/tests/qtest/cpu-plug-test.c
@@ -156,6 +156,28 @@ static void add_s390x_test_case(const char *mname)
     g_free(path);
 }
 
+static void add_loongarch_test_case(const char *mname)
+{
+    char *path;
+    PlugTestData *data;
+
+    data = g_new(PlugTestData, 1);
+    data->machine = g_strdup(mname);
+    data->cpu_model = "la464";
+    data->device_model = g_strdup("la464-loongarch-cpu");
+    data->sockets = 1;
+    data->cores = 3;
+    data->threads = 1;
+    data->maxcpus = data->sockets * data->cores * data->threads;
+
+    path = g_strdup_printf("cpu-plug/%s/device-add/%ux%ux%u&maxcpus=%u",
+                           mname, data->sockets, data->cores,
+                           data->threads, data->maxcpus);
+    qtest_add_data_func_full(path, data, test_plug_with_device_add,
+                             test_data_free);
+    g_free(path);
+}
+
 int main(int argc, char **argv)
 {
     const char *arch = qtest_get_arch();
@@ -168,6 +190,8 @@ int main(int argc, char **argv)
         qtest_cb_for_every_machine(add_pseries_test_case, g_test_quick());
     } else if (g_str_equal(arch, "s390x")) {
         qtest_cb_for_every_machine(add_s390x_test_case, g_test_quick());
+    } else if (g_str_equal(arch, "loongarch64")) {
+        add_loongarch_test_case("virt");
     }
 
     return g_test_run();
diff --git a/tests/qtest/meson.build b/tests/qtest/meson.build
index 5a8c1f102c..788093f744 100644
--- a/tests/qtest/meson.build
+++ b/tests/qtest/meson.build
@@ -149,7 +149,8 @@ qtests_hppa = \
 
 qtests_loongarch64 = qtests_filter + \
   (config_all_devices.has_key('CONFIG_LOONGARCH_VIRT') ? ['numa-test'] : []) + \
-  ['boot-serial-test']
+  ['boot-serial-test',
+   'cpu-plug-test']
 
 qtests_m68k = ['boot-serial-test'] + \
   qtests_filter

base-commit: 4c33c097f3a8a8093bcbaf097c3a178051e51b3e
-- 
2.39.3