From: Zhao Liu <zhao1.liu@intel.com>

The support for "parameter=0" SMP configurations is removed, and QEMU
returns error for those cases.

So add the related test cases to ensure parameters can't accept 0.

Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20240308160148.3130837-14-zhao1.liu@linux.intel.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 tests/unit/test-smp-parse.c | 92 +++++++++++++++++++++++++++++++++++++
 1 file changed, 92 insertions(+)

diff --git a/tests/unit/test-smp-parse.c b/tests/unit/test-smp-parse.c
index d39cfdc19b..8994337e12 100644
--- a/tests/unit/test-smp-parse.c
+++ b/tests/unit/test-smp-parse.c
@@ -524,6 +524,91 @@ static const struct SMPTestData data_full_topo_invalid[] = {
     },
 };
 
+static const struct SMPTestData data_zero_topo_invalid[] = {
+    {
+        /*
+         * Test "cpus=0".
+         * config: -smp 0,drawers=1,books=1,sockets=1,dies=1,\
+         *              clusters=1,cores=1,threads=1,maxcpus=1
+         */
+        .config = SMP_CONFIG_WITH_FULL_TOPO(0, 1, 1, 1, 1, 1, 1, 1, 1),
+        .expect_error = "Invalid CPU topology: CPU topology parameters must "
+                        "be greater than zero",
+    }, {
+        /*
+         * Test "drawers=0".
+         * config: -smp 1,drawers=0,books=1,sockets=1,dies=1,\
+         *              clusters=1,cores=1,threads=1,maxcpus=1
+         */
+        .config = SMP_CONFIG_WITH_FULL_TOPO(1, 0, 1, 1, 1, 1, 1, 1, 1),
+        .expect_error = "Invalid CPU topology: CPU topology parameters must "
+                        "be greater than zero",
+    }, {
+        /*
+         * Test "books=0".
+         * config: -smp 1,drawers=1,books=0,sockets=1,dies=1,\
+         *              clusters=1,cores=1,threads=1,maxcpus=1
+         */
+        .config = SMP_CONFIG_WITH_FULL_TOPO(1, 1, 0, 1, 1, 1, 1, 1, 1),
+        .expect_error = "Invalid CPU topology: CPU topology parameters must "
+                        "be greater than zero",
+    }, {
+        /*
+         * Test "sockets=0".
+         * config: -smp 1,drawers=1,books=1,sockets=0,dies=1,\
+         *              clusters=1,cores=1,threads=1,maxcpus=1
+         */
+        .config = SMP_CONFIG_WITH_FULL_TOPO(1, 1, 1, 0, 1, 1, 1, 1, 1),
+        .expect_error = "Invalid CPU topology: CPU topology parameters must "
+                        "be greater than zero",
+    }, {
+        /*
+         * Test "dies=0".
+         * config: -smp 1,drawers=1,books=1,sockets=1,dies=0,\
+         *              clusters=1,cores=1,threads=1,maxcpus=1
+         */
+        .config = SMP_CONFIG_WITH_FULL_TOPO(1, 1, 1, 1, 0, 1, 1, 1, 1),
+        .expect_error = "Invalid CPU topology: CPU topology parameters must "
+                        "be greater than zero",
+    }, {
+        /*
+         * Test "clusters=0".
+         * config: -smp 1,drawers=1,books=1,sockets=1,dies=1,\
+         *              clusters=0,cores=1,threads=1,maxcpus=1
+         */
+        .config = SMP_CONFIG_WITH_FULL_TOPO(1, 1, 1, 1, 1, 0, 1, 1, 1),
+        .expect_error = "Invalid CPU topology: CPU topology parameters must "
+                        "be greater than zero",
+    }, {
+        /*
+         * Test "cores=0".
+         * config: -smp 1,drawers=1,books=1,sockets=1,dies=1,\
+         *              clusters=1,cores=0,threads=1,maxcpus=1
+         */
+        .config = SMP_CONFIG_WITH_FULL_TOPO(1, 1, 1, 1, 1, 1, 0, 1, 1),
+        .expect_error = "Invalid CPU topology: CPU topology parameters must "
+                        "be greater than zero",
+    }, {
+        /*
+         * Test "threads=0".
+         * config: -smp 1,drawers=1,books=1,sockets=1,dies=1,\
+         *              clusters=1,cores=1,threads=0,maxcpus=1
+         */
+        .config = SMP_CONFIG_WITH_FULL_TOPO(1, 1, 1, 1, 1, 1, 1, 0, 1),
+        .expect_error = "Invalid CPU topology: CPU topology parameters must "
+                        "be greater than zero",
+    }, {
+        /*
+         * Test "maxcpus=0".
+         * config: -smp 1,drawers=1,books=1,sockets=1,dies=1,\
+         *              clusters=1,cores=1,threads=1,maxcpus=0
+         */
+        .config = SMP_CONFIG_WITH_FULL_TOPO(1, 1, 1, 1, 1, 1, 1, 1, 0),
+        .expect_error = "Invalid CPU topology: CPU topology parameters must "
+                        "be greater than zero",
+    },
+};
+
 static char *smp_config_to_string(const SMPConfiguration *config)
 {
     return g_strdup_printf(
@@ -1173,6 +1258,13 @@ static void test_full_topo(const void *opaque)
         smp_parse_test(ms, &data, false);
     }
 
+    for (i = 0; i < ARRAY_SIZE(data_zero_topo_invalid); i++) {
+        data = data_zero_topo_invalid[i];
+        unsupported_params_init(mc, &data);
+
+        smp_parse_test(ms, &data, false);
+    }
+
     object_unref(obj);
 }
 
-- 
2.41.0