mirror of
https://gitlab.com/qemu-project/qemu
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ca1ef1e62e
This patch is to reduce the number of Valgrind report messages about
using uninitialized memory with the null-co driver. It helps to filter
real memory issues and is the same work done for the iotests with the
commit ID a6862418fe.
Suggested-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Message-Id: <1564404360-733987-1-git-send-email-andrey.shinkevich@virtuozzo.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
154 lines
4 KiB
C
154 lines
4 KiB
C
/*
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* blockdev.c test cases
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*
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* Copyright (C) 2013-2014 Red Hat Inc.
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*
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* Authors:
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* Stefan Hajnoczi <stefanha@redhat.com>
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*
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* This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
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* See the COPYING.LIB file in the top-level directory.
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*/
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#include "qemu/osdep.h"
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#include "libqtest.h"
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#include "libqos/virtio.h"
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#include "qapi/qmp/qdict.h"
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/* TODO actually test the results and get rid of this */
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#define qmp_discard_response(q, ...) qobject_unref(qtest_qmp(q, __VA_ARGS__))
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static void drive_add(QTestState *qts)
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{
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char *resp = qtest_hmp(qts, "drive_add 0 if=none,id=drive0");
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g_assert_cmpstr(resp, ==, "OK\r\n");
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g_free(resp);
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}
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static void drive_del(QTestState *qts)
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{
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char *resp = qtest_hmp(qts, "drive_del drive0");
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g_assert_cmpstr(resp, ==, "");
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g_free(resp);
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}
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static void device_del(QTestState *qts)
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{
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QDict *response;
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/* Complication: ignore DEVICE_DELETED event */
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qmp_discard_response(qts, "{'execute': 'device_del',"
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" 'arguments': { 'id': 'dev0' } }");
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response = qtest_qmp_receive(qts);
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g_assert(response);
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g_assert(qdict_haskey(response, "return"));
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qobject_unref(response);
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}
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static void test_drive_without_dev(void)
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{
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QTestState *qts;
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/* Start with an empty drive */
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qts = qtest_init("-drive if=none,id=drive0");
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/* Delete the drive */
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drive_del(qts);
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/* Ensure re-adding the drive works - there should be no duplicate ID error
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* because the old drive must be gone.
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*/
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drive_add(qts);
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qtest_quit(qts);
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}
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/*
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* qvirtio_get_dev_type:
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* Returns: the preferred virtio bus/device type for the current architecture.
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* TODO: delete this
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*/
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static const char *qvirtio_get_dev_type(void)
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{
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const char *arch = qtest_get_arch();
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if (g_str_equal(arch, "arm") || g_str_equal(arch, "aarch64")) {
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return "device"; /* for virtio-mmio */
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} else if (g_str_equal(arch, "s390x")) {
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return "ccw";
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} else {
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return "pci";
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}
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}
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static void test_after_failed_device_add(void)
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{
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char driver[32];
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QDict *response;
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QTestState *qts;
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snprintf(driver, sizeof(driver), "virtio-blk-%s",
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qvirtio_get_dev_type());
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qts = qtest_init("-drive if=none,id=drive0");
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/* Make device_add fail. If this leaks the virtio-blk device then a
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* reference to drive0 will also be held (via qdev properties).
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*/
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response = qtest_qmp(qts, "{'execute': 'device_add',"
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" 'arguments': {"
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" 'driver': %s,"
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" 'drive': 'drive0'"
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"}}", driver);
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g_assert(response);
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qmp_assert_error_class(response, "GenericError");
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/* Delete the drive */
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drive_del(qts);
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/* Try to re-add the drive. This fails with duplicate IDs if a leaked
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* virtio-blk device exists that holds a reference to the old drive0.
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*/
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drive_add(qts);
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qtest_quit(qts);
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}
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static void test_drive_del_device_del(void)
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{
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QTestState *qts;
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/* Start with a drive used by a device that unplugs instantaneously */
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qts = qtest_initf("-drive if=none,id=drive0,file=null-co://,"
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"file.read-zeroes=on,format=raw"
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" -device virtio-scsi-%s"
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" -device scsi-hd,drive=drive0,id=dev0",
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qvirtio_get_dev_type());
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/*
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* Delete the drive, and then the device
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* Doing it in this order takes notoriously tricky special paths
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*/
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drive_del(qts);
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device_del(qts);
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qtest_quit(qts);
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}
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int main(int argc, char **argv)
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{
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g_test_init(&argc, &argv, NULL);
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qtest_add_func("/drive_del/without-dev", test_drive_without_dev);
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if (qvirtio_get_dev_type() != NULL) {
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qtest_add_func("/drive_del/after_failed_device_add",
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test_after_failed_device_add);
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qtest_add_func("/blockdev/drive_del_device_del",
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test_drive_del_device_del);
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}
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return g_test_run();
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}
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