[Qemu-devel] [PATCH v3 3/3] fdc-test: introduced qtest no_media_on_start

[Pavel Hrdina <phrdina@redhat.com>]

After guest start DSKCHG bit in DIR register should be set. If there
is no media in drive, this bit should be set all the time.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
---
 tests/fdc-test.c |   29 ++++++++++++++++++++++++++---
 1 files changed, 26 insertions(+), 3 deletions(-)

diff --git a/tests/fdc-test.c b/tests/fdc-test.c
index 5b5dd74..e002c5c 100644
--- a/tests/fdc-test.c
+++ b/tests/fdc-test.c
@@ -108,6 +108,30 @@ static void send_step_pulse(void)
     cyl = (cyl + 1) % 4;
 }
 
+static void test_no_media_on_start(void)
+{
+    uint8_t dir;
+
+    /* Media changed bit must be set all time after start if there is
+     * no media in drive. */
+    dir = inb(FLOPPY_BASE + reg_dir);
+    assert_bit_set(dir, DSKCHG);
+    dir = inb(FLOPPY_BASE + reg_dir);
+    assert_bit_set(dir, DSKCHG);
+    send_step_pulse();
+    send_step_pulse();
+    dir = inb(FLOPPY_BASE + reg_dir);
+    assert_bit_set(dir, DSKCHG);
+    dir = inb(FLOPPY_BASE + reg_dir);
+    assert_bit_set(dir, DSKCHG);
+
+    /* Insert media for other tests. */
+    qmp("{'execute':'change', 'arguments':{ 'device':'floppy0', "
+        "'target': '%s' }}", test_image);
+    qmp(""); /* ignore event (FIXME open -> open transition?!) */
+    qmp(""); /* ignore event */
+}
+
 static void test_media_change(void)
 {
     uint8_t dir;
@@ -177,12 +201,11 @@ int main(int argc, char **argv)
     /* Run the tests */
     g_test_init(&argc, &argv, NULL);
 
-    cmdline = g_strdup_printf("-vnc none "
-        "-drive file=%s,if=floppy,cache=writeback ",
-        test_image);
+    cmdline = g_strdup_printf("-vnc none ");
 
     qtest_start(cmdline);
     qtest_irq_intercept_in(global_qtest, "ioapic");
+    qtest_add_func("/fdc/no_media_on_start", test_no_media_on_start);
     qtest_add_func("/fdc/media_change", test_media_change);
 
     ret = g_test_run();
-- 
1.7.7.6