linux-user: Support for restarting system calls for OpenRISC targets
[qemu.git] / tests / drive_del-test.c
1 /*
2 * blockdev.c test cases
3 *
4 * Copyright (C) 2013-2014 Red Hat Inc.
5 *
6 * Authors:
7 * Stefan Hajnoczi <stefanha@redhat.com>
8 *
9 * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
10 * See the COPYING.LIB file in the top-level directory.
11 */
12
13 #include "qemu/osdep.h"
14 #include <glib.h>
15 #include "libqtest.h"
16
17 static void drive_add(void)
18 {
19 char *resp = hmp("drive_add 0 if=none,id=drive0");
20
21 g_assert_cmpstr(resp, ==, "OK\r\n");
22 g_free(resp);
23 }
24
25 static void drive_del(void)
26 {
27 char *resp = hmp("drive_del drive0");
28
29 g_assert_cmpstr(resp, ==, "");
30 g_free(resp);
31 }
32
33 static void device_del(void)
34 {
35 QDict *response;
36
37 /* Complication: ignore DEVICE_DELETED event */
38 qmp_discard_response("{'execute': 'device_del',"
39 " 'arguments': { 'id': 'dev0' } }");
40 response = qmp_receive();
41 g_assert(response);
42 g_assert(qdict_haskey(response, "return"));
43 QDECREF(response);
44 }
45
46 static void test_drive_without_dev(void)
47 {
48 /* Start with an empty drive */
49 qtest_start("-drive if=none,id=drive0");
50
51 /* Delete the drive */
52 drive_del();
53
54 /* Ensure re-adding the drive works - there should be no duplicate ID error
55 * because the old drive must be gone.
56 */
57 drive_add();
58
59 qtest_end();
60 }
61
62 static void test_after_failed_device_add(void)
63 {
64 QDict *response;
65 QDict *error;
66
67 qtest_start("-drive if=none,id=drive0");
68
69 /* Make device_add fail. If this leaks the virtio-blk-pci device then a
70 * reference to drive0 will also be held (via qdev properties).
71 */
72 response = qmp("{'execute': 'device_add',"
73 " 'arguments': {"
74 " 'driver': 'virtio-blk-pci',"
75 " 'drive': 'drive0'"
76 "}}");
77 g_assert(response);
78 error = qdict_get_qdict(response, "error");
79 g_assert_cmpstr(qdict_get_try_str(error, "class"), ==, "GenericError");
80 QDECREF(response);
81
82 /* Delete the drive */
83 drive_del();
84
85 /* Try to re-add the drive. This fails with duplicate IDs if a leaked
86 * virtio-blk-pci exists that holds a reference to the old drive0.
87 */
88 drive_add();
89
90 qtest_end();
91 }
92
93 static void test_drive_del_device_del(void)
94 {
95 /* Start with a drive used by a device that unplugs instantaneously */
96 qtest_start("-drive if=none,id=drive0,file=/dev/null,format=raw"
97 " -device virtio-scsi-pci"
98 " -device scsi-hd,drive=drive0,id=dev0");
99
100 /*
101 * Delete the drive, and then the device
102 * Doing it in this order takes notoriously tricky special paths
103 */
104 drive_del();
105 device_del();
106
107 qtest_end();
108 }
109
110 int main(int argc, char **argv)
111 {
112 const char *arch = qtest_get_arch();
113
114 g_test_init(&argc, &argv, NULL);
115
116 qtest_add_func("/drive_del/without-dev", test_drive_without_dev);
117
118 /* TODO I guess any arch with PCI would do */
119 if (!strcmp(arch, "i386") || !strcmp(arch, "x86_64")) {
120 qtest_add_func("/drive_del/after_failed_device_add",
121 test_after_failed_device_add);
122 qtest_add_func("/blockdev/drive_del_device_del",
123 test_drive_del_device_del);
124 }
125
126 return g_test_run();
127 }