tests: bios-tables-test: add support for testing bridges

Adds alternative ACPI table blob selection for testing
non default QEMU configurations. If blob file for test
variant is not present, fallback to default blob.

With this change implement testing with a coldplugged
bridge.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

1 files changed, 40 insertions, 5 deletions

diff --git a/tests/bios-tables-test.c b/tests/bios-tables-test.c
index 4d0fa84..735ac61 100644
--- a/tests/bios-tables-test.c
+++ b/tests/bios-tables-test.c
@@ -40,6 +40,7 @@ typedef struct {
 
 typedef struct {
     const char *machine;
+    const char *variant;
     uint32_t rsdp_addr;
     AcpiRsdpDescriptor rsdp_table;
     AcpiRsdtDescriptorRev1 rsdt_table;
@@ -396,13 +397,14 @@ static void dump_aml_files(test_data *data, bool rebuild)
     int i;
 
     for (i = 0; i < data->tables->len; ++i) {
+        const char *ext = data->variant ? data->variant : "";
         sdt = &g_array_index(data->tables, AcpiSdtTable, i);
         g_assert(sdt->aml);
 
         if (rebuild) {
             uint32_t signature = cpu_to_le32(sdt->header.signature);
-            aml_file = g_strdup_printf("%s/%s/%.4s", data_dir, data->machine,
-                                       (gchar *)&signature);
+            aml_file = g_strdup_printf("%s/%s/%.4s%s", data_dir, data->machine,
+                                       (gchar *)&signature, ext);
             fd = g_open(aml_file, O_WRONLY|O_TRUNC|O_CREAT,
                         S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH);
         } else {
@@ -509,7 +511,7 @@ static GArray *load_expected_aml(test_data *data)
 {
     int i;
     AcpiSdtTable *sdt;
-    gchar *aml_file;
+    gchar *aml_file = NULL;
     GError *error = NULL;
     gboolean ret;
 
@@ -517,6 +519,7 @@ static GArray *load_expected_aml(test_data *data)
     for (i = 0; i < data->tables->len; ++i) {
         AcpiSdtTable exp_sdt;
         uint32_t signature;
+        const char *ext = data->variant ? data->variant : "";
 
         sdt = &g_array_index(data->tables, AcpiSdtTable, i);
 
@@ -524,8 +527,15 @@ static GArray *load_expected_aml(test_data *data)
         exp_sdt.header.signature = sdt->header.signature;
 
         signature = cpu_to_le32(sdt->header.signature);
-        aml_file = g_strdup_printf("%s/%s/%.4s", data_dir, data->machine,
-                                   (gchar *)&signature);
+
+try_again:
+        aml_file = g_strdup_printf("%s/%s/%.4s%s", data_dir, data->machine,
+                                   (gchar *)&signature, ext);
+        if (data->variant && !g_file_test(aml_file, G_FILE_TEST_EXISTS)) {
+            g_free(aml_file);
+            ext = "";
+            goto try_again;
+        }
         exp_sdt.aml_file = aml_file;
         g_assert(g_file_test(aml_file, G_FILE_TEST_EXISTS));
         ret = g_file_get_contents(aml_file, &exp_sdt.aml,
@@ -778,6 +788,17 @@ static void test_acpi_piix4_tcg(void)
     free_test_data(&data);
 }
 
+static void test_acpi_piix4_tcg_bridge(void)
+{
+    test_data data;
+
+    memset(&data, 0, sizeof(data));
+    data.machine = MACHINE_PC;
+    data.variant = ".bridge";
+    test_acpi_one("-machine accel=tcg -device pci-bridge,chassis_nr=1", &data);
+    free_test_data(&data);
+}
+
 static void test_acpi_q35_tcg(void)
 {
     test_data data;
@@ -788,6 +809,18 @@ static void test_acpi_q35_tcg(void)
     free_test_data(&data);
 }
 
+static void test_acpi_q35_tcg_bridge(void)
+{
+    test_data data;
+
+    memset(&data, 0, sizeof(data));
+    data.machine = MACHINE_Q35;
+    data.variant = ".bridge";
+    test_acpi_one("-machine q35,accel=tcg -device pci-bridge,chassis_nr=1",
+                  &data);
+    free_test_data(&data);
+}
+
 int main(int argc, char *argv[])
 {
     const char *arch = qtest_get_arch();
@@ -805,7 +838,9 @@ int main(int argc, char *argv[])
 
     if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) {
         qtest_add_func("acpi/piix4/tcg", test_acpi_piix4_tcg);
+        qtest_add_func("acpi/piix4/tcg/bridge", test_acpi_piix4_tcg_bridge);
         qtest_add_func("acpi/q35/tcg", test_acpi_q35_tcg);
+        qtest_add_func("acpi/q35/tcg/bridge", test_acpi_q35_tcg_bridge);
     }
     ret = g_test_run();
     unlink(disk);