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Test 067 from qemu-iotests is executing QMP commands to hotplug and hot-unplug disks, devices and blockdevs. Because the power of the text-based test harness is limited, it is actually limiting the checks that it does, for example by skipping DEVICE_DELETED events. tests/qtest already has a similar test, drive_del-test.c. We can merge them, and even reuse some of the existing code in drive_del-test.c. This will improve the quality of the test by covering DEVICE_DELETED events and testing multiple architectures (therefore covering multiple PCI hotplug mechanisms as well as s390x virtio-ccw). The only difference is that the new test will always use null-co:// for the medium rather than qcow2 or raw, but this should be irrelevant for what the test is covering. For example there are no "qemu-img check" runs in 067 that would check that the file is properly closed. The new tests requires PCI hot-plug support, so drive_del-test is moved from qemu-system-ppc to qemu-system-ppc64. Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
345 lines
9.0 KiB
C
345 lines
9.0 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 "libqos/libqtest.h"
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#include "libqos/virtio.h"
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#include "qapi/qmp/qdict.h"
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#include "qapi/qmp/qlist.h"
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static bool look_for_drive0(QTestState *qts, const char *command, const char *key)
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{
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QDict *response;
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QList *ret;
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QListEntry *entry;
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bool found;
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response = qtest_qmp(qts, "{'execute': %s}", command);
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g_assert(response && qdict_haskey(response, "return"));
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ret = qdict_get_qlist(response, "return");
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found = false;
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QLIST_FOREACH_ENTRY(ret, entry) {
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QDict *entry_dict = qobject_to(QDict, entry->value);
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if (!strcmp(qdict_get_str(entry_dict, key), "drive0")) {
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found = true;
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break;
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}
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}
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qobject_unref(response);
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return found;
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}
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static bool has_drive(QTestState *qts)
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{
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return look_for_drive0(qts, "query-block", "device");
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}
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static bool has_blockdev(QTestState *qts)
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{
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return look_for_drive0(qts, "query-named-block-nodes", "node-name");
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}
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static void blockdev_add_with_media(QTestState *qts)
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{
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QDict *response;
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response = qtest_qmp(qts,
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"{ 'execute': 'blockdev-add',"
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" 'arguments': {"
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" 'driver': 'raw',"
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" 'node-name': 'drive0',"
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" 'file': {"
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" 'driver': 'null-co',"
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" 'read-zeroes': true"
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" }"
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" }"
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"}");
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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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g_assert(has_blockdev(qts));
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}
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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_assert(has_drive(qts));
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g_free(resp);
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}
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static void drive_add_with_media(QTestState *qts)
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{
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char *resp = qtest_hmp(qts,
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"drive_add 0 if=none,id=drive0,file=null-co://,"
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"file.read-zeroes=on,format=raw");
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g_assert_cmpstr(resp, ==, "OK\r\n");
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g_assert(has_drive(qts));
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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;
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g_assert(has_drive(qts));
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resp = qtest_hmp(qts, "drive_del drive0");
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g_assert_cmpstr(resp, ==, "");
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g_assert(!has_drive(qts));
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g_free(resp);
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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 device_add(QTestState *qts)
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{
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QDict *response;
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char driver[32];
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snprintf(driver, sizeof(driver), "virtio-blk-%s",
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qvirtio_get_dev_type());
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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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" 'id': 'dev0'"
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"}}", driver);
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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 device_del(QTestState *qts, bool and_reset)
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{
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QDict *response;
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response = qtest_qmp(qts, "{'execute': 'device_del',"
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" 'arguments': { 'id': 'dev0' } }");
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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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if (and_reset) {
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response = qtest_qmp(qts, "{'execute': 'system_reset' }");
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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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qtest_qmp_eventwait(qts, "DEVICE_DELETED");
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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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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_expect_error_and_unref(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, false);
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g_assert(!has_drive(qts));
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qtest_quit(qts);
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}
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static void test_cli_device_del(void)
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{
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QTestState *qts;
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/*
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* -drive/-device and device_del. Start with a drive used by a
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* device that unplugs after reset.
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*/
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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-blk-%s,drive=drive0,id=dev0",
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qvirtio_get_dev_type());
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device_del(qts, true);
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g_assert(!has_drive(qts));
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qtest_quit(qts);
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}
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static void test_empty_device_del(void)
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{
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QTestState *qts;
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/* device_del with no drive plugged. */
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qts = qtest_initf("-device virtio-scsi-%s -device scsi-cd,id=dev0",
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qvirtio_get_dev_type());
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device_del(qts, false);
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qtest_quit(qts);
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}
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static void test_device_add_and_del(void)
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{
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QTestState *qts;
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/*
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* -drive/device_add and device_del. Start with a drive used by a
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* device that unplugs after reset.
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*/
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qts = qtest_init("-drive if=none,id=drive0,file=null-co://,"
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"file.read-zeroes=on,format=raw");
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device_add(qts);
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device_del(qts, true);
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g_assert(!has_drive(qts));
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qtest_quit(qts);
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}
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static void test_drive_add_device_add_and_del(void)
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{
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QTestState *qts;
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qts = qtest_init("");
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/*
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* drive_add/device_add and device_del. The drive is used by a
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* device that unplugs after reset.
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*/
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drive_add_with_media(qts);
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device_add(qts);
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device_del(qts, true);
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g_assert(!has_drive(qts));
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qtest_quit(qts);
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}
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static void test_blockdev_add_device_add_and_del(void)
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{
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QTestState *qts;
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qts = qtest_init("");
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/*
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* blockdev_add/device_add and device_del. The it drive is used by a
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* device that unplugs after reset, but it doesn't go away.
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*/
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blockdev_add_with_media(qts);
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device_add(qts);
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device_del(qts, true);
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g_assert(has_blockdev(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("/drive_del/drive_del_device_del",
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test_drive_del_device_del);
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qtest_add_func("/device_del/drive/cli_device",
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test_cli_device_del);
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qtest_add_func("/device_del/drive/device_add",
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test_device_add_and_del);
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qtest_add_func("/device_del/drive/drive_add_device_add",
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test_drive_add_device_add_and_del);
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qtest_add_func("/device_del/empty",
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test_empty_device_del);
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qtest_add_func("/device_del/blockdev",
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test_blockdev_add_device_add_and_del);
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}
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return g_test_run();
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}
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