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migration: Rename save_live_setup() to save_setup()
[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 <[email protected]>
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 "libqtest.h"
15
16 static void drive_add(void)
17 {
18     char *resp = hmp("drive_add 0 if=none,id=drive0");
19
20     g_assert_cmpstr(resp, ==, "OK\r\n");
21     g_free(resp);
22 }
23
24 static void drive_del(void)
25 {
26     char *resp = hmp("drive_del drive0");
27
28     g_assert_cmpstr(resp, ==, "");
29     g_free(resp);
30 }
31
32 static void device_del(void)
33 {
34     QDict *response;
35
36     /* Complication: ignore DEVICE_DELETED event */
37     qmp_discard_response("{'execute': 'device_del',"
38                          " 'arguments': { 'id': 'dev0' } }");
39     response = qmp_receive();
40     g_assert(response);
41     g_assert(qdict_haskey(response, "return"));
42     QDECREF(response);
43 }
44
45 static void test_drive_without_dev(void)
46 {
47     /* Start with an empty drive */
48     qtest_start("-drive if=none,id=drive0");
49
50     /* Delete the drive */
51     drive_del();
52
53     /* Ensure re-adding the drive works - there should be no duplicate ID error
54      * because the old drive must be gone.
55      */
56     drive_add();
57
58     qtest_end();
59 }
60
61 static void test_after_failed_device_add(void)
62 {
63     QDict *response;
64     QDict *error;
65
66     qtest_start("-drive if=none,id=drive0");
67
68     /* Make device_add fail.  If this leaks the virtio-blk-pci device then a
69      * reference to drive0 will also be held (via qdev properties).
70      */
71     response = qmp("{'execute': 'device_add',"
72                    " 'arguments': {"
73                    "   'driver': 'virtio-blk-pci',"
74                    "   'drive': 'drive0'"
75                    "}}");
76     g_assert(response);
77     error = qdict_get_qdict(response, "error");
78     g_assert_cmpstr(qdict_get_try_str(error, "class"), ==, "GenericError");
79     QDECREF(response);
80
81     /* Delete the drive */
82     drive_del();
83
84     /* Try to re-add the drive.  This fails with duplicate IDs if a leaked
85      * virtio-blk-pci exists that holds a reference to the old drive0.
86      */
87     drive_add();
88
89     qtest_end();
90 }
91
92 static void test_drive_del_device_del(void)
93 {
94     /* Start with a drive used by a device that unplugs instantaneously */
95     qtest_start("-drive if=none,id=drive0,file=null-co://,format=raw"
96                 " -device virtio-scsi-pci"
97                 " -device scsi-hd,drive=drive0,id=dev0");
98
99     /*
100      * Delete the drive, and then the device
101      * Doing it in this order takes notoriously tricky special paths
102      */
103     drive_del();
104     device_del();
105
106     qtest_end();
107 }
108
109 int main(int argc, char **argv)
110 {
111     const char *arch = qtest_get_arch();
112
113     g_test_init(&argc, &argv, NULL);
114
115     qtest_add_func("/drive_del/without-dev", test_drive_without_dev);
116
117     /* TODO I guess any arch with PCI would do */
118     if (!strcmp(arch, "i386") || !strcmp(arch, "x86_64") ||
119         !strcmp(arch, "ppc") || !strcmp(arch, "ppc64")) {
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 }
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