tests/acpi: unit test for 'acpi-pci-hotplug-with-bridge-support' bridge flag

This change adds a new unit test for the global flag
'acpi-pci-hotplug-with-bridge-support' which is available for cold plugged pci
bridges in i440fx. The flag can be used to turn off ACPI based hotplug support
on all pci bridges.

Signed-off-by: Ani Sinha <ani@anisinha.ca>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20200918084111.15339-8-ani@anisinha.ca>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

1 files changed, 16 insertions, 0 deletions

diff --git a/tests/qtest/bios-tables-test.c b/tests/qtest/bios-tables-test.c
index bc932d0b9f..3c09b844f9 100644
--- a/tests/qtest/bios-tables-test.c
+++ b/tests/qtest/bios-tables-test.c
@@ -756,6 +756,20 @@ static void test_acpi_piix4_no_root_hotplug(void)
     free_test_data(&data);
 }
 
+static void test_acpi_piix4_no_bridge_hotplug(void)
+{
+    test_data data;
+
+    memset(&data, 0, sizeof(data));
+    data.machine = MACHINE_PC;
+    data.variant = ".hpbridge";
+    data.required_struct_types = base_required_struct_types;
+    data.required_struct_types_len = ARRAY_SIZE(base_required_struct_types);
+    test_acpi_one("-global PIIX4_PM.acpi-pci-hotplug-with-bridge-support=off "
+                  "-device pci-bridge,chassis_nr=1", &data);
+    free_test_data(&data);
+}
+
 static void test_acpi_q35_tcg(void)
 {
     test_data data;
@@ -1176,6 +1190,8 @@ int main(int argc, char *argv[])
         qtest_add_func("acpi/piix4/bridge", test_acpi_piix4_tcg_bridge);
         qtest_add_func("acpi/piix4/pci-hotplug/no_root_hotplug",
                        test_acpi_piix4_no_root_hotplug);
+        qtest_add_func("acpi/piix4/pci-hotplug/no_bridge_hotplug",
+                       test_acpi_piix4_no_bridge_hotplug);
         qtest_add_func("acpi/q35", test_acpi_q35_tcg);
         qtest_add_func("acpi/q35/bridge", test_acpi_q35_tcg_bridge);
         qtest_add_func("acpi/q35/mmio64", test_acpi_q35_tcg_mmio64);