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/*
* blockdev.c test cases
*
* Copyright (C) 2013-2014 Red Hat Inc.
*
* Authors:
* Stefan Hajnoczi <stefanha@redhat.com>
*
* This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
* See the COPYING.LIB file in the top-level directory.
*/
#include "qemu/osdep.h"
#include "libqtest.h"
#include "libqos/virtio.h"
#include "qapi/qmp/qdict.h"
static void drive_add(void)
{
char *resp = hmp("drive_add 0 if=none,id=drive0");
g_assert_cmpstr(resp, ==, "OK\r\n");
g_free(resp);
}
static void drive_del(void)
{
char *resp = hmp("drive_del drive0");
g_assert_cmpstr(resp, ==, "");
g_free(resp);
}
static void device_del(void)
{
QDict *response;
/* Complication: ignore DEVICE_DELETED event */
qmp_discard_response("{'execute': 'device_del',"
" 'arguments': { 'id': 'dev0' } }");
response = qmp_receive();
g_assert(response);
g_assert(qdict_haskey(response, "return"));
QDECREF(response);
}
static void test_drive_without_dev(void)
{
/* Start with an empty drive */
qtest_start("-drive if=none,id=drive0");
/* Delete the drive */
drive_del();
/* Ensure re-adding the drive works - there should be no duplicate ID error
* because the old drive must be gone.
*/
drive_add();
qtest_end();
}
static void test_after_failed_device_add(void)
{
QDict *response;
QDict *error;
qtest_start("-drive if=none,id=drive0");
/* Make device_add fail. If this leaks the virtio-blk device then a
* reference to drive0 will also be held (via qdev properties).
*/
response = qmp("{'execute': 'device_add',"
" 'arguments': {"
" 'driver': 'virtio-blk-%s',"
" 'drive': 'drive0'"
"}}", qvirtio_get_dev_type());
g_assert(response);
error = qdict_get_qdict(response, "error");
g_assert_cmpstr(qdict_get_try_str(error, "class"), ==, "GenericError");
QDECREF(response);
/* Delete the drive */
drive_del();
/* Try to re-add the drive. This fails with duplicate IDs if a leaked
* virtio-blk device exists that holds a reference to the old drive0.
*/
drive_add();
qtest_end();
}
static void test_drive_del_device_del(void)
{
char *args;
/* Start with a drive used by a device that unplugs instantaneously */
args = g_strdup_printf("-drive if=none,id=drive0,file=null-co://,format=raw"
" -device virtio-scsi-%s"
" -device scsi-hd,drive=drive0,id=dev0",
qvirtio_get_dev_type());
qtest_start(args);
/*
* Delete the drive, and then the device
* Doing it in this order takes notoriously tricky special paths
*/
drive_del();
device_del();
qtest_end();
g_free(args);
}
int main(int argc, char **argv)
{
const char *arch = qtest_get_arch();
g_test_init(&argc, &argv, NULL);
qtest_add_func("/drive_del/without-dev", test_drive_without_dev);
/* TODO I guess any arch with a hot-pluggable virtio bus would do */
if (!strcmp(arch, "i386") || !strcmp(arch, "x86_64") ||
!strcmp(arch, "ppc") || !strcmp(arch, "ppc64") ||
!strcmp(arch, "s390x")) {
qtest_add_func("/drive_del/after_failed_device_add",
test_after_failed_device_add);
qtest_add_func("/blockdev/drive_del_device_del",
test_drive_del_device_del);
}
return g_test_run();
}
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