qemu/tests/qtest/migration/compression-tests.c

/*
 * QTest testcases for migration compression
 *
 * Copyright (c) 2016-2018 Red Hat, Inc. and/or its affiliates
 *   based on the vhost-user-test.c that is:
 *      Copyright (c) 2014 Virtual Open Systems Sarl.
 *
 * This work is licensed under the terms of the GNU GPL, version 2 or later.
 * See the COPYING file in the top-level directory.
 *
 */

#include "qemu/osdep.h"
#include "libqtest.h"
#include "migration/framework.h"
#include "migration/migration-qmp.h"
#include "migration/migration-util.h"
#include "qemu/module.h"


static char *tmpfs;

static void set_multifd_compression(QTestState *from, QTestState *to,
                                    const char *method)
{
    migrate_set_parameter_str(from, "multifd-compression", method);
    migrate_set_parameter_str(to, "multifd-compression", method);
}

#ifdef CONFIG_ZSTD
static void *
migrate_hook_start_precopy_tcp_multifd_zstd(QTestState *from,
                                            QTestState *to)
{
    migrate_set_parameter_int(from, "multifd-zstd-level", 2);
    migrate_set_parameter_int(to, "multifd-zstd-level", 2);
    set_multifd_compression(from, to, "zstd");

    return NULL;
}

static void test_multifd_tcp_zstd(char *name, MigrateCommon *args)
{
    args->start_hook = migrate_hook_start_precopy_tcp_multifd_zstd;

    args->start.caps[MIGRATION_CAPABILITY_MULTIFD] = true;

    test_precopy_common(args);
}

static void test_multifd_postcopy_tcp_zstd(char *name, MigrateCommon *args)
{
    args->start_hook = migrate_hook_start_precopy_tcp_multifd_zstd,

    args->start.caps[MIGRATION_CAPABILITY_MULTIFD] = true;
    args->start.caps[MIGRATION_CAPABILITY_POSTCOPY_RAM] = true;

    test_precopy_common(args);
}
#endif /* CONFIG_ZSTD */

#ifdef CONFIG_QATZIP
static void *
migrate_hook_start_precopy_tcp_multifd_qatzip(QTestState *from,
                                              QTestState *to)
{
    migrate_set_parameter_int(from, "multifd-qatzip-level", 2);
    migrate_set_parameter_int(to, "multifd-qatzip-level", 2);
    set_multifd_compression(from, to, "qatzip");

    return NULL;
}

static void test_multifd_tcp_qatzip(char *name, MigrateCommon *args)
{
    args->start_hook = migrate_hook_start_precopy_tcp_multifd_qatzip;

    args->start.caps[MIGRATION_CAPABILITY_MULTIFD] = true;

    test_precopy_common(args);
}
#endif

#ifdef CONFIG_QPL
static void *
migrate_hook_start_precopy_tcp_multifd_qpl(QTestState *from,
                                           QTestState *to)
{
    set_multifd_compression(from, to, "qpl");
    return NULL;
}

static void test_multifd_tcp_qpl(char *name, MigrateCommon *args)
{
    args->start_hook = migrate_hook_start_precopy_tcp_multifd_qpl;

    args->start.caps[MIGRATION_CAPABILITY_MULTIFD] = true;

    test_precopy_common(args);
}
#endif /* CONFIG_QPL */

#ifdef CONFIG_UADK
static void *
migrate_hook_start_precopy_tcp_multifd_uadk(QTestState *from,
                                            QTestState *to)
{
    set_multifd_compression(from, to, "uadk");
    return NULL;
}

static void test_multifd_tcp_uadk(char *name, MigrateCommon *args)
{
    args->start_hook = migrate_hook_start_precopy_tcp_multifd_uadk;

    args->start.caps[MIGRATION_CAPABILITY_MULTIFD] = true;

    test_precopy_common(args);
}
#endif /* CONFIG_UADK */

static void *
migrate_hook_start_xbzrle(QTestState *from,
                          QTestState *to)
{
    migrate_set_parameter_int(from, "xbzrle-cache-size", 33554432);
    return NULL;
}

static void test_precopy_unix_xbzrle(char *name, MigrateCommon *args)
{
    args->start_hook = migrate_hook_start_xbzrle;
    args->iterations = 2;
    /*
     * XBZRLE needs pages to be modified when doing the 2nd+ round
     * iteration to have real data pushed to the stream.
     */
    args->live = true;

    args->start.caps[MIGRATION_CAPABILITY_XBZRLE] = true;

    test_precopy_unix_common(args);
}

static void *
migrate_hook_start_precopy_tcp_multifd_zlib(QTestState *from,
                                            QTestState *to)
{
    /*
     * Overloading this test to also check that set_parameter does not error.
     * This is also done in the tests for the other compression methods.
     */
    migrate_set_parameter_int(from, "multifd-zlib-level", 2);
    migrate_set_parameter_int(to, "multifd-zlib-level", 2);
    set_multifd_compression(from, to, "zlib");

    return NULL;
}

static void test_multifd_tcp_zlib(char *name, MigrateCommon *args)
{
    args->start_hook = migrate_hook_start_precopy_tcp_multifd_zlib;

    args->start.caps[MIGRATION_CAPABILITY_MULTIFD] = true;

    test_precopy_common(args);
}

static void migration_test_add_compression_smoke(MigrationTestEnv *env)
{
    migration_test_add("/migration/multifd/tcp/plain/zlib",
                       test_multifd_tcp_zlib);
}

void migration_test_add_compression(MigrationTestEnv *env)
{
    tmpfs = env->tmpfs;

    migration_test_add_compression_smoke(env);

    if (!env->full_set) {
        return;
    }

#ifdef CONFIG_ZSTD
    migration_test_add("/migration/multifd/tcp/plain/zstd",
                       test_multifd_tcp_zstd);
    if (env->has_uffd) {
        migration_test_add("/migration/multifd+postcopy/tcp/plain/zstd",
                           test_multifd_postcopy_tcp_zstd);
    }
#endif

#ifdef CONFIG_QATZIP
    migration_test_add("/migration/multifd/tcp/plain/qatzip",
                       test_multifd_tcp_qatzip);
#endif

#ifdef CONFIG_QPL
    migration_test_add("/migration/multifd/tcp/plain/qpl",
                       test_multifd_tcp_qpl);
#endif

#ifdef CONFIG_UADK
    migration_test_add("/migration/multifd/tcp/plain/uadk",
                       test_multifd_tcp_uadk);
#endif

    if (g_test_slow()) {
        migration_test_add("/migration/precopy/unix/xbzrle",
                           test_precopy_unix_xbzrle);
    }
}