xref: /kvm-unit-tests/lib/migrate.c (revision 956004acda727b12b14ef0b5283984754ee7616d)

/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Migration-related functions
 *
 * Copyright IBM Corp. 2022
 * Author: Nico Boehr <nrb@linux.ibm.com>
 */
#include <libcflat.h>
#include "migrate.h"

/*
 * Initiate migration and wait for it to complete.
 */
void migrate(void)
{
	puts("Now migrate the VM, then press a key to continue...\n");
	(void)getchar();
	report_info("Migration complete");
}

/*
 * Like migrate() but suppress output and logs, useful for intensive
 * migration stress testing without polluting logs. Test cases should
 * provide relevant information about migration in failure reports.
 */
void migrate_quiet(void)
{
	puts("Now migrate the VM (quiet)\n");
	(void)getchar();
}

/*
 * Initiate migration and wait for it to complete.
 * If this function is called more than once, it is a no-op.
 */
void migrate_once(void)
{
	static bool migrated;

	if (migrated)
		return;
	migrated = true;

	migrate();
}

/*
 * When the test has been started in migration mode, but the test case is
 * skipped and no migration point is reached, this can be used to tell the
 * harness not to mark it as a failure to migrate.
 */
void migrate_skip(void)
{
	static bool did_migrate_skip;

	if (did_migrate_skip)
		return;
	did_migrate_skip = true;

	puts("Skipped VM migration (quiet)\n");
	(void)getchar();
}

void migrate_begin_continuous(void)
{
	puts("Begin continuous migration\n");
	(void)getchar();
}

void migrate_end_continuous(void)
{
	/*
	 * Migration can split this output between source and dest QEMU
	 * output files, print twice and match once to always cope with
	 * a split.
	 */
	puts("End continuous migration\n");
	puts("End continuous migration (quiet)\n");
	(void)getchar();
}