[PULL 1/2] tests/acpi: unit test exercising global pci hotplug off for i440fx

["Michael S. Tsirkin" <mst@redhat.com>]

From: Ani Sinha <ani@anisinha.ca>

This change adds a unit test to exercise the case when hotplug is disabled
both for pci root bus and the pci bridges by passing the following two
switches to qemu:

  -global PIIX4_PM.acpi-root-pci-hotplug=off
  -global PIIX4_PM.acpi-pci-hotplug-with-bridge-support=off

bios-tables-test-allowed-diff.h documents the fact that a new DSDT acpi gold
master binary blob we need to be added to test this. We will do the actual
addition in the next patch in the series.

Signed-off-by: Ani Sinha <ani@anisinha.ca>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20200929123011.31836-2-ani@anisinha.ca>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 tests/qtest/bios-tables-test-allowed-diff.h |  1 +
 tests/qtest/bios-tables-test.c              | 17 +++++++++++++++++
 2 files changed, 18 insertions(+)

diff --git a/tests/qtest/bios-tables-test-allowed-diff.h b/tests/qtest/bios-tables-test-allowed-diff.h
index dfb8523c8b..dea61d94f1 100644
--- a/tests/qtest/bios-tables-test-allowed-diff.h
+++ b/tests/qtest/bios-tables-test-allowed-diff.h
@@ -1 +1,2 @@
 /* List of comma-separated changed AML files to ignore */
+"tests/data/acpi/pc/DSDT.hpbrroot",
diff --git a/tests/qtest/bios-tables-test.c b/tests/qtest/bios-tables-test.c
index 3c09b844f9..b514b70b62 100644
--- a/tests/qtest/bios-tables-test.c
+++ b/tests/qtest/bios-tables-test.c
@@ -770,6 +770,21 @@ static void test_acpi_piix4_no_bridge_hotplug(void)
     free_test_data(&data);
 }
 
+static void test_acpi_piix4_no_acpi_pci_hotplug(void)
+{
+    test_data data;
+
+    memset(&data, 0, sizeof(data));
+    data.machine = MACHINE_PC;
+    data.variant = ".hpbrroot";
+    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-root-pci-hotplug=off "
+                  "-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;
@@ -1192,6 +1207,8 @@ int main(int argc, char *argv[])
                        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/piix4/pci-hotplug/off",
+                       test_acpi_piix4_no_acpi_pci_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);
-- 
MST