Merge remote-tracking branch 'kwolf/for-anthony' into staging

* kwolf/for-anthony: (24 commits)
  block: Factor bdrv_read_unthrottled() out of guess_disk_lchs()
  qtest: Tidy up temporary files properly
  fdc: Drop broken code for user-defined floppy geometry
  fdc_test: introduce test_sense_interrupt
  fdc_test: update media_change test
  fdc: fix interrupt handling
  fdc: rewrite seek and DSKCHG bit handling
  block: introduce bdrv_swap, implement bdrv_append on top of it
  block: copy over job and dirty bitmap fields in bdrv_append
  raw: hook into blkdebug
  blkdebug: optionally tie errors to a specific sector
  blkdebug: store list of active rules
  blkdebug: pass getlength to underlying file
  blkdebug: tiny cleanup
  blkdebug: remove sync i/o events
  sheepdog: traverse pending_list from the first for each time
  sheepdog: split outstanding list into inflight and pending
  sheepdog: make sure we don't free aiocb before sending all requests
  sheepdog: use coroutine based socket functions in coroutine context
  sheepdog: restart I/O when socket becomes ready in do_co_req()
  ...

2 files changed, 57 insertions, 22 deletions

diff --git a/tests/fdc-test.c b/tests/fdc-test.c
index 610e2f1e26..585fb0e343 100644
--- a/tests/fdc-test.c
+++ b/tests/fdc-test.c
@@ -142,7 +142,7 @@ static uint8_t send_read_command(void)
     }
 
     st0 = floppy_recv();
-    if (st0 != 0x40) {
+    if (st0 != 0x60) {
         ret = 1;
     }
 
@@ -156,19 +156,16 @@ static uint8_t send_read_command(void)
     return ret;
 }
 
-static void send_step_pulse(void)
+static void send_step_pulse(int cyl)
 {
     int drive = 0;
     int head = 0;
-    static int cyl = 0;
 
     floppy_send(CMD_SEEK);
     floppy_send(head << 2 | drive);
     g_assert(!get_irq(FLOPPY_IRQ));
     floppy_send(cyl);
     ack_irq();
-
-    cyl = (cyl + 1) % 4;
 }
 
 static uint8_t cmos_read(uint8_t reg)
@@ -195,8 +192,7 @@ static void test_no_media_on_start(void)
     assert_bit_set(dir, DSKCHG);
     dir = inb(FLOPPY_BASE + reg_dir);
     assert_bit_set(dir, DSKCHG);
-    send_step_pulse();
-    send_step_pulse();
+    send_step_pulse(1);
     dir = inb(FLOPPY_BASE + reg_dir);
     assert_bit_set(dir, DSKCHG);
     dir = inb(FLOPPY_BASE + reg_dir);
@@ -227,7 +223,14 @@ static void test_media_change(void)
     dir = inb(FLOPPY_BASE + reg_dir);
     assert_bit_set(dir, DSKCHG);
 
-    send_step_pulse();
+    send_step_pulse(0);
+    dir = inb(FLOPPY_BASE + reg_dir);
+    assert_bit_set(dir, DSKCHG);
+    dir = inb(FLOPPY_BASE + reg_dir);
+    assert_bit_set(dir, DSKCHG);
+
+    /* Step to next track should clear DSKCHG bit. */
+    send_step_pulse(1);
     dir = inb(FLOPPY_BASE + reg_dir);
     assert_bit_clear(dir, DSKCHG);
     dir = inb(FLOPPY_BASE + reg_dir);
@@ -243,11 +246,39 @@ static void test_media_change(void)
     dir = inb(FLOPPY_BASE + reg_dir);
     assert_bit_set(dir, DSKCHG);
 
-    send_step_pulse();
+    send_step_pulse(0);
     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(1);
+    dir = inb(FLOPPY_BASE + reg_dir);
+    assert_bit_set(dir, DSKCHG);
+    dir = inb(FLOPPY_BASE + reg_dir);
+    assert_bit_set(dir, DSKCHG);
+}
+
+static void test_sense_interrupt(void)
+{
+    int drive = 0;
+    int head = 0;
+    int cyl = 0;
+    int ret = 0;
+
+    floppy_send(CMD_SENSE_INT);
+    ret = floppy_recv();
+    g_assert(ret == 0x80);
+
+    floppy_send(CMD_SEEK);
+    floppy_send(head << 2 | drive);
+    g_assert(!get_irq(FLOPPY_IRQ));
+    floppy_send(cyl);
+
+    floppy_send(CMD_SENSE_INT);
+    ret = floppy_recv();
+    g_assert(ret == 0x20);
+    floppy_recv();
 }
 
 /* success if no crash or abort */
@@ -297,6 +328,7 @@ int main(int argc, char **argv)
     qtest_add_func("/fdc/no_media_on_start", test_no_media_on_start);
     qtest_add_func("/fdc/read_without_media", test_read_without_media);
     qtest_add_func("/fdc/media_change", test_media_change);
+    qtest_add_func("/fdc/sense_interrupt", test_sense_interrupt);
     qtest_add_func("/fdc/fuzz-registers", fuzz_registers);
 
     ret = g_test_run();
diff --git a/tests/libqtest.c b/tests/libqtest.c
index 071b6be521..02d039218d 100644
--- a/tests/libqtest.c
+++ b/tests/libqtest.c
@@ -40,6 +40,7 @@ struct QTestState
     bool irq_level[MAX_IRQ];
     GString *rx;
     gchar *pid_file;
+    char *socket_path, *qmp_socket_path;
 };
 
 #define g_assert_no_errno(ret) do { \
@@ -88,8 +89,6 @@ QTestState *qtest_init(const char *extra_args)
 {
     QTestState *s;
     int sock, qmpsock, ret, i;
-    gchar *socket_path;
-    gchar *qmp_socket_path;
     gchar *pid_file;
     gchar *command;
     const char *qemu_binary;
@@ -98,14 +97,14 @@ QTestState *qtest_init(const char *extra_args)
     qemu_binary = getenv("QTEST_QEMU_BINARY");
     g_assert(qemu_binary != NULL);
 
-    socket_path = g_strdup_printf("/tmp/qtest-%d.sock", getpid());
-    qmp_socket_path = g_strdup_printf("/tmp/qtest-%d.qmp", getpid());
-    pid_file = g_strdup_printf("/tmp/qtest-%d.pid", getpid());
-
     s = g_malloc(sizeof(*s));
 
-    sock = init_socket(socket_path);
-    qmpsock = init_socket(qmp_socket_path);
+    s->socket_path = g_strdup_printf("/tmp/qtest-%d.sock", getpid());
+    s->qmp_socket_path = g_strdup_printf("/tmp/qtest-%d.qmp", getpid());
+    pid_file = g_strdup_printf("/tmp/qtest-%d.pid", getpid());
+
+    sock = init_socket(s->socket_path);
+    qmpsock = init_socket(s->qmp_socket_path);
 
     pid = fork();
     if (pid == 0) {
@@ -115,8 +114,8 @@ QTestState *qtest_init(const char *extra_args)
                                   "-qmp unix:%s,nowait "
                                   "-pidfile %s "
                                   "-machine accel=qtest "
-                                  "%s", qemu_binary, socket_path,
-                                  qmp_socket_path, pid_file,
+                                  "%s", qemu_binary, s->socket_path,
+                                  s->qmp_socket_path, pid_file,
                                   extra_args ?: "");
 
         ret = system(command);
@@ -133,9 +132,6 @@ QTestState *qtest_init(const char *extra_args)
         s->irq_level[i] = false;
     }
 
-    g_free(socket_path);
-    g_free(qmp_socket_path);
-
     /* Read the QMP greeting and then do the handshake */
     qtest_qmp(s, "");
     qtest_qmp(s, "{ 'execute': 'qmp_capabilities' }");
@@ -160,6 +156,13 @@ void qtest_quit(QTestState *s)
 
         fclose(f);
     }
+
+    unlink(s->pid_file);
+    unlink(s->socket_path);
+    unlink(s->qmp_socket_path);
+    g_free(s->pid_file);
+    g_free(s->socket_path);
+    g_free(s->qmp_socket_path);
 }
 
 static void socket_sendf(int fd, const char *fmt, va_list ap)