[PATCH v1 2/3] tests/acpi: unit test for 'acpi-pci-hotplug-with-bridge-support' bridge flag

[Ani Sinha <ani@anisinha.ca>]

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
for all the slots of the pci bus.

Tested on the upstream qemu master branch on top of tag v5.1.0

Signed-off-by: Ani Sinha <ani@anisinha.ca>
---
 tests/qtest/bios-tables-test.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/tests/qtest/bios-tables-test.c b/tests/qtest/bios-tables-test.c
index a2c0070306..e52a36e775 100644
--- a/tests/qtest/bios-tables-test.c
+++ b/tests/qtest/bios-tables-test.c
@@ -723,6 +723,20 @@ static void test_acpi_piix4_root_hotplug(void)
     free_test_data(&data);
 }
 
+static void test_acpi_piix4_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;
@@ -1117,6 +1131,7 @@ int main(int argc, char *argv[])
         qtest_add_func("acpi/piix4", test_acpi_piix4_tcg);
         qtest_add_func("acpi/piix4/bridge", test_acpi_piix4_tcg_bridge);
         qtest_add_func("acpi/piix4/hotplug", test_acpi_piix4_root_hotplug);
+        qtest_add_func("acpi/piix4/brhotplug", test_acpi_piix4_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);
-- 
2.17.1