tests/x86: Use 'pc' machine type for old hardware tests

For tests that rely on old hardware, e.g. floppies or IDE drives,
explicitly select the 'pc' machine type.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20220215162537.605030-2-dgilbert@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>

tests/qtest/fdc-test.c

@@ -598,7 +598,7 @@ int main(int argc, char **argv)
     /* Run the tests */
     g_test_init(&argc, &argv, NULL);
 
-    qtest_start("-device floppy,id=floppy0");
+    qtest_start("-machine pc -device floppy,id=floppy0");
     qtest_irq_intercept_in(global_qtest, "ioapic");
     qtest_add_func("/fdc/cmos", test_cmos);
     qtest_add_func("/fdc/no_media_on_start", test_no_media_on_start);

tests/qtest/hd-geo-test.c

@@ -178,9 +178,15 @@ static int append_arg(int argc, char *argv[], int argv_sz, char *arg)
 
 static int setup_common(char *argv[], int argv_sz)
 {
+    int new_argc;
     memset(cur_ide, 0, sizeof(cur_ide));
-    return append_arg(0, argv, argv_sz,
-                      g_strdup("-nodefaults"));
+    new_argc = append_arg(0, argv, argv_sz,
+                          g_strdup("-nodefaults"));
+    new_argc = append_arg(new_argc, argv, argv_sz,
+                          g_strdup("-machine"));
+    new_argc = append_arg(new_argc, argv, argv_sz,
+                          g_strdup("pc"));
+    return new_argc;
 }
 
 static void setup_mbr(int img_idx, MBRcontents mbr)
@@ -697,7 +703,7 @@ static void test_override(TestArgs *args, CHSResult expected[])
 
     joined_args = g_strjoinv(" ", args->argv);
 
-    qts = qtest_init(joined_args);
+    qts = qtest_initf("-machine pc %s", joined_args);
     fw_cfg = pc_fw_cfg_init(qts);
 
     read_bootdevices(fw_cfg, expected);

tests/qtest/i440fx-test.c

@@ -35,7 +35,7 @@ static QPCIBus *test_start_get_bus(const TestData *s)
 {
     char *cmdline;
 
-    cmdline = g_strdup_printf("-smp %d", s->num_cpus);
+    cmdline = g_strdup_printf("-machine pc -smp %d", s->num_cpus);
     qtest_start(cmdline);
     g_free(cmdline);
     return qpci_new_pc(global_qtest, NULL);

tests/qtest/ide-test.c

@@ -128,10 +128,11 @@ static char debug_path[] = "/tmp/qtest-blkdebug.XXXXXX";
 static QTestState *ide_test_start(const char *cmdline_fmt, ...)
 {
     QTestState *qts;
+    g_autofree char *full_fmt = g_strdup_printf("-machine pc %s", cmdline_fmt);
     va_list ap;
 
     va_start(ap, cmdline_fmt);
-    qts = qtest_vinitf(cmdline_fmt, ap);
+    qts = qtest_vinitf(full_fmt, ap);
     va_end(ap);
 
     pc_alloc_init(&guest_malloc, qts, 0);