[RFC,21/47] lkl tools: "boot" test
diff mbox series

Message ID 6574e34836110ebc7ce92984f81666632be49873.1571798507.git.thehajime@gmail.com
State Superseded
Headers show
Series
  • [RFC,01/47] asm-generic: atomic64: allow using generic atomic64 on 64bit platforms
Related show

Commit Message

Hajime Tazaki Oct. 23, 2019, 4:37 a.m. UTC
From: Octavian Purdila <tavi.purdila@gmail.com>

Add a simple LKL test applications that starts the kernel and performs
simple tests that minimally exercise the LKL API.

Signed-off-by: Conrad Meyer <cem@FreeBSD.org>
Signed-off-by: David Disseldorp <ddiss@suse.de>
Signed-off-by: H.K. Jerry Chu <hkchu@google.com>
Signed-off-by: Hajime Tazaki <thehajime@gmail.com>
Signed-off-by: Lai Jiangshan <jiangshanlai@gmail.com>
Signed-off-by: Luca Dariz <luca.dariz@gmail.com>
Signed-off-by: Mark Stillwell <mark@stillwell.me>
Signed-off-by: Motomu Utsumi <motomuman@gmail.com>
Signed-off-by: Patrick Collins <pscollins@google.com>
Signed-off-by: Petros Angelatos <petrosagg@gmail.com>
Signed-off-by: Thomas Liebetraut <thomas@tommie-lie.de>
Signed-off-by: Yuan Liu <liuyuan@google.com>
Signed-off-by: Octavian Purdila <tavi.purdila@gmail.com>
---
 tools/lkl/tests/Build             |   3 +
 tools/lkl/tests/boot.c            | 562 ++++++++++++++++++++++++++++++
 tools/lkl/tests/boot.sh           |   9 +
 tools/lkl/tests/cla.c             | 159 +++++++++
 tools/lkl/tests/cla.h             |  33 ++
 tools/lkl/tests/disk.c            | 189 ++++++++++
 tools/lkl/tests/disk.sh           |  70 ++++
 tools/lkl/tests/run.py            | 186 ++++++++++
 tools/lkl/tests/tap13.py          | 209 +++++++++++
 tools/lkl/tests/test.c            | 126 +++++++
 tools/lkl/tests/test.h            |  72 ++++
 tools/lkl/tests/test.sh           | 240 +++++++++++++
 tools/lkl/tests/valgrind.supp     |  85 +++++
 tools/lkl/tests/valgrind2xunit.py |  69 ++++
 14 files changed, 2012 insertions(+)
 create mode 100644 tools/lkl/tests/Build
 create mode 100644 tools/lkl/tests/boot.c
 create mode 100755 tools/lkl/tests/boot.sh
 create mode 100644 tools/lkl/tests/cla.c
 create mode 100644 tools/lkl/tests/cla.h
 create mode 100644 tools/lkl/tests/disk.c
 create mode 100755 tools/lkl/tests/disk.sh
 create mode 100755 tools/lkl/tests/run.py
 create mode 100644 tools/lkl/tests/tap13.py
 create mode 100644 tools/lkl/tests/test.c
 create mode 100644 tools/lkl/tests/test.h
 create mode 100644 tools/lkl/tests/test.sh
 create mode 100644 tools/lkl/tests/valgrind.supp
 create mode 100755 tools/lkl/tests/valgrind2xunit.py

Patch
diff mbox series

diff --git a/tools/lkl/tests/Build b/tools/lkl/tests/Build
new file mode 100644
index 000000000000..ace86a3d3438
--- /dev/null
+++ b/tools/lkl/tests/Build
@@ -0,0 +1,3 @@ 
+boot-y += boot.o test.o
+disk-y += disk.o cla.o test.o
+net-test-y += net-test.o cla.o test.o
diff --git a/tools/lkl/tests/boot.c b/tools/lkl/tests/boot.c
new file mode 100644
index 000000000000..74fba648e558
--- /dev/null
+++ b/tools/lkl/tests/boot.c
@@ -0,0 +1,562 @@ 
+// SPDX-License-Identifier: GPL-2.0
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include <time.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <lkl.h>
+#include <lkl_host.h>
+
+#include <sys/stat.h>
+#include <fcntl.h>
+#if defined(__FreeBSD__)
+#include <net/if.h>
+#include <sys/ioctl.h>
+#elif __linux
+#include <sys/epoll.h>
+#include <sys/ioctl.h>
+#elif __MINGW32__
+#include <windows.h>
+#endif
+
+#include "test.h"
+
+#ifndef __MINGW32__
+#define sleep_ns 87654321
+int lkl_test_nanosleep(void)
+{
+	struct lkl_timespec ts = {
+		.tv_sec = 0,
+		.tv_nsec = sleep_ns,
+	};
+	struct timespec start, stop;
+	long delta;
+	long ret;
+
+	clock_gettime(CLOCK_MONOTONIC, &start);
+	ret = lkl_sys_nanosleep((struct __lkl__kernel_timespec *)&ts, NULL);
+	clock_gettime(CLOCK_MONOTONIC, &stop);
+
+	delta = 1e9*(stop.tv_sec - start.tv_sec) +
+		(stop.tv_nsec - start.tv_nsec);
+
+	lkl_test_logf("sleep %ld, expected sleep %d\n", delta, sleep_ns);
+
+	if (ret == 0 && delta > sleep_ns * 0.9)
+		return TEST_SUCCESS;
+
+	return TEST_FAILURE;
+}
+#endif
+
+LKL_TEST_CALL(getpid, lkl_sys_getpid, 1)
+
+void check_latency(long (*f)(void), long *min, long *max, long *avg)
+{
+	int i;
+	unsigned long long start, stop, sum = 0;
+	static const int count = 1000;
+	long delta;
+
+	*min = 1000000000;
+	*max = -1;
+
+	for (i = 0; i < count; i++) {
+		start = lkl_host_ops.time();
+		f();
+		stop = lkl_host_ops.time();
+		delta = stop - start;
+		if (*min > delta)
+			*min = delta;
+		if (*max < delta)
+			*max = delta;
+		sum += delta;
+	}
+	*avg = sum / count;
+}
+
+static long native_getpid(void)
+{
+#ifdef __MINGW32__
+	GetCurrentProcessId();
+#else
+	getpid();
+#endif
+	return 0;
+}
+
+int lkl_test_syscall_latency(void)
+{
+	long min, max, avg;
+
+	lkl_test_logf("avg/min/max: ");
+
+	check_latency(lkl_sys_getpid, &min, &max, &avg);
+
+	lkl_test_logf("lkl:%ld/%ld/%ld ", avg, min, max);
+
+	check_latency(native_getpid, &min, &max, &avg);
+
+	lkl_test_logf("native:%ld/%ld/%ld\n", avg, min, max);
+
+	return TEST_SUCCESS;
+}
+
+#define access_rights 0721
+
+LKL_TEST_CALL(creat, lkl_sys_creat, 0, "/file", access_rights)
+LKL_TEST_CALL(close, lkl_sys_close, 0, 0);
+LKL_TEST_CALL(failopen, lkl_sys_open, -LKL_ENOENT, "/file2", 0, 0);
+LKL_TEST_CALL(umask, lkl_sys_umask, 022,  0777);
+LKL_TEST_CALL(umask2, lkl_sys_umask, 0777, 0);
+LKL_TEST_CALL(open, lkl_sys_open, 0, "/file", LKL_O_RDWR, 0);
+static const char wrbuf[] = "test";
+LKL_TEST_CALL(write, lkl_sys_write, sizeof(wrbuf), 0, wrbuf, sizeof(wrbuf));
+LKL_TEST_CALL(lseek_cur, lkl_sys_lseek, sizeof(wrbuf), 0, 0, LKL_SEEK_CUR);
+LKL_TEST_CALL(lseek_end, lkl_sys_lseek, sizeof(wrbuf), 0, 0, LKL_SEEK_END);
+LKL_TEST_CALL(lseek_set, lkl_sys_lseek, 0, 0, 0, LKL_SEEK_SET);
+
+int lkl_test_read(void)
+{
+	char buf[10] = { 0, };
+	long ret;
+
+	ret = lkl_sys_read(0, buf, sizeof(buf));
+
+	lkl_test_logf("lkl_sys_read=%ld buf=%s\n", ret, buf);
+
+	if (ret == sizeof(wrbuf) && !strcmp(wrbuf, buf))
+		return TEST_SUCCESS;
+
+	return TEST_FAILURE;
+}
+
+int lkl_test_fstat(void)
+{
+	struct lkl_stat stat;
+	long ret;
+
+	ret = lkl_sys_fstat(0, &stat);
+
+	lkl_test_logf("lkl_sys_fstat=%ld mode=%o size=%zd\n", ret, stat.st_mode,
+		      stat.st_size);
+
+	if (ret == 0 && stat.st_size == sizeof(wrbuf) &&
+	    stat.st_mode == (access_rights | LKL_S_IFREG))
+		return TEST_SUCCESS;
+
+	return TEST_FAILURE;
+}
+
+LKL_TEST_CALL(mkdir, lkl_sys_mkdir, 0, "/mnt", access_rights)
+
+int lkl_test_stat(void)
+{
+	struct lkl_stat stat;
+	long ret;
+
+	ret = lkl_sys_stat("/mnt", &stat);
+
+	lkl_test_logf("lkl_sys_stat(\"/mnt\")=%ld mode=%o\n", ret,
+		      stat.st_mode);
+
+	if (ret == 0 && stat.st_mode == (access_rights | LKL_S_IFDIR))
+		return TEST_SUCCESS;
+
+	return TEST_FAILURE;
+}
+
+static int lkl_test_pipe2(void)
+{
+	int pipe_fds[2];
+	int READ_IDX = 0, WRITE_IDX = 1;
+	const char msg[] = "Hello world!";
+	char str[20];
+	int msg_len_bytes = strlen(msg) + 1;
+	int cmp_res;
+	long ret;
+
+	ret = lkl_sys_pipe2(pipe_fds, LKL_O_NONBLOCK);
+	if (ret) {
+		lkl_test_logf("pipe2: %s\n", lkl_strerror(ret));
+		return TEST_FAILURE;
+	}
+
+	ret = lkl_sys_write(pipe_fds[WRITE_IDX], msg, msg_len_bytes);
+	if (ret != msg_len_bytes) {
+		if (ret < 0)
+			lkl_test_logf("write error: %s\n", lkl_strerror(ret));
+		else
+			lkl_test_logf("short write: %ld\n", ret);
+		return TEST_FAILURE;
+	}
+
+	ret = lkl_sys_read(pipe_fds[READ_IDX], str, msg_len_bytes);
+	if (ret != msg_len_bytes) {
+		if (ret < 0)
+			lkl_test_logf("read error: %s\n", lkl_strerror(ret));
+		else
+			lkl_test_logf("short read: %ld\n", ret);
+		return TEST_FAILURE;
+	}
+
+	cmp_res = memcmp(msg, str, msg_len_bytes);
+	if (cmp_res) {
+		lkl_test_logf("memcmp failed: %d\n", cmp_res);
+		return TEST_FAILURE;
+	}
+
+	ret = lkl_sys_close(pipe_fds[0]);
+	if (ret) {
+		lkl_test_logf("close error: %s\n", lkl_strerror(ret));
+		return TEST_FAILURE;
+	}
+
+	ret = lkl_sys_close(pipe_fds[1]);
+	if (ret) {
+		lkl_test_logf("close error: %s\n", lkl_strerror(ret));
+		return TEST_FAILURE;
+	}
+
+	return TEST_SUCCESS;
+}
+
+static int lkl_test_epoll(void)
+{
+	int epoll_fd, pipe_fds[2];
+	int READ_IDX = 0, WRITE_IDX = 1;
+	struct lkl_epoll_event wait_on, read_result;
+	const char msg[] = "Hello world!";
+	long ret;
+
+	memset(&wait_on, 0, sizeof(wait_on));
+	memset(&read_result, 0, sizeof(read_result));
+
+	ret = lkl_sys_pipe2(pipe_fds, LKL_O_NONBLOCK);
+	if (ret) {
+		lkl_test_logf("pipe2 error: %s\n", lkl_strerror(ret));
+		return TEST_FAILURE;
+	}
+
+	epoll_fd = lkl_sys_epoll_create(1);
+	if (epoll_fd < 0) {
+		lkl_test_logf("epoll_create error: %s\n", lkl_strerror(ret));
+		return TEST_FAILURE;
+	}
+
+	wait_on.events = LKL_POLLIN | LKL_POLLOUT;
+	wait_on.data = pipe_fds[READ_IDX];
+
+	ret = lkl_sys_epoll_ctl(epoll_fd, LKL_EPOLL_CTL_ADD, pipe_fds[READ_IDX],
+				&wait_on);
+	if (ret < 0) {
+		lkl_test_logf("epoll_ctl error: %s\n", lkl_strerror(ret));
+		return TEST_FAILURE;
+	}
+
+	/* Shouldn't be ready before we have written something */
+	ret = lkl_sys_epoll_wait(epoll_fd, &read_result, 1, 0);
+	if (ret != 0) {
+		if (ret < 0)
+			lkl_test_logf("epoll_wait error: %s\n",
+				      lkl_strerror(ret));
+		else
+			lkl_test_logf("epoll_wait: bad event: 0x%lx\n", ret);
+		return TEST_FAILURE;
+	}
+
+	ret = lkl_sys_write(pipe_fds[WRITE_IDX], msg, strlen(msg) + 1);
+	if (ret < 0) {
+		lkl_test_logf("write error: %s\n", lkl_strerror(ret));
+		return TEST_FAILURE;
+	}
+
+	/* We expect exactly 1 fd to be ready immediately */
+	ret = lkl_sys_epoll_wait(epoll_fd, &read_result, 1, 0);
+	if (ret != 1) {
+		if (ret < 0)
+			lkl_test_logf("epoll_wait error: %s\n",
+				      lkl_strerror(ret));
+		else
+			lkl_test_logf("epoll_wait: bad ev no %ld\n", ret);
+		return TEST_FAILURE;
+	}
+
+	/* Already tested reading from pipe2 so no need to do it
+	 * here
+	 */
+
+	return TEST_SUCCESS;
+}
+
+LKL_TEST_CALL(chdir_proc, lkl_sys_chdir, 0, "proc");
+
+static int dir_fd;
+
+static int lkl_test_open_cwd(void)
+{
+	dir_fd = lkl_sys_open(".", LKL_O_RDONLY | LKL_O_DIRECTORY, 0);
+	if (dir_fd < 0) {
+		lkl_test_logf("failed to open current directory: %s\n",
+			      lkl_strerror(dir_fd));
+		return TEST_FAILURE;
+	}
+
+	return TEST_SUCCESS;
+}
+
+/* column where to insert a line break for the list file tests below. */
+#define COL_LINE_BREAK 70
+
+static int lkl_test_getdents64(void)
+{
+	long ret;
+	char buf[1024], *pos;
+	struct lkl_linux_dirent64 *de;
+	int wr;
+
+	de = (struct lkl_linux_dirent64 *)buf;
+	ret = lkl_sys_getdents64(dir_fd, de, sizeof(buf));
+
+	wr = lkl_test_logf("%d ", dir_fd);
+
+	if (ret < 0)
+		return TEST_FAILURE;
+
+	for (pos = buf; pos - buf < ret; pos += de->d_reclen) {
+		de = (struct lkl_linux_dirent64 *)pos;
+
+		wr += lkl_test_logf("%s ", de->d_name);
+		if (wr >= COL_LINE_BREAK) {
+			lkl_test_logf("\n");
+			wr = 0;
+		}
+	}
+
+	return TEST_SUCCESS;
+}
+
+LKL_TEST_CALL(close_dir_fd, lkl_sys_close, 0, dir_fd);
+LKL_TEST_CALL(chdir_root, lkl_sys_chdir, 0, "/");
+LKL_TEST_CALL(mount_fs_proc, lkl_mount_fs, 0, "proc");
+LKL_TEST_CALL(umount_fs_proc, lkl_umount_timeout, 0, "proc", 0, 1000);
+LKL_TEST_CALL(lo_ifup, lkl_if_up, 0, 1);
+
+static int lkl_test_mutex(void)
+{
+	long ret = TEST_SUCCESS;
+	/*
+	 * Can't do much to verify that this works, so we'll just let Valgrind
+	 * warn us on CI if we've made bad memory accesses.
+	 */
+
+	struct lkl_mutex *mutex;
+
+	mutex = lkl_host_ops.mutex_alloc(0);
+	lkl_host_ops.mutex_lock(mutex);
+	lkl_host_ops.mutex_unlock(mutex);
+	lkl_host_ops.mutex_free(mutex);
+
+	mutex = lkl_host_ops.mutex_alloc(1);
+	lkl_host_ops.mutex_lock(mutex);
+	lkl_host_ops.mutex_lock(mutex);
+	lkl_host_ops.mutex_unlock(mutex);
+	lkl_host_ops.mutex_unlock(mutex);
+	lkl_host_ops.mutex_free(mutex);
+
+	return ret;
+}
+
+static int lkl_test_semaphore(void)
+{
+	long ret = TEST_SUCCESS;
+	/*
+	 * Can't do much to verify that this works, so we'll just let Valgrind
+	 * warn us on CI if we've made bad memory accesses.
+	 */
+
+	struct lkl_sem *sem = lkl_host_ops.sem_alloc(1);
+
+	lkl_host_ops.sem_down(sem);
+	lkl_host_ops.sem_up(sem);
+	lkl_host_ops.sem_free(sem);
+
+	return ret;
+}
+
+static int lkl_test_gettid(void)
+{
+	long tid = lkl_host_ops.gettid();
+
+	lkl_test_logf("%ld", tid);
+
+	/* As far as I know, thread IDs are non-zero on all reasonable
+	 * systems.
+	 */
+	if (tid)
+		return TEST_SUCCESS;
+	else
+		return TEST_FAILURE;
+}
+
+static void test_thread(void *data)
+{
+	int *pipe_fds = (int *) data;
+	char tmp[LKL_PIPE_BUF+1];
+	int ret;
+
+	ret = lkl_sys_read(pipe_fds[0], tmp, sizeof(tmp));
+	if (ret < 0)
+		lkl_test_logf("%s: %s\n", __func__, lkl_strerror(ret));
+}
+
+static int lkl_test_syscall_thread(void)
+{
+	int pipe_fds[2];
+	char tmp[LKL_PIPE_BUF+1];
+	long ret;
+	lkl_thread_t tid;
+
+	ret = lkl_sys_pipe2(pipe_fds, 0);
+	if (ret) {
+		lkl_test_logf("pipe2: %s\n", lkl_strerror(ret));
+		return TEST_FAILURE;
+	}
+
+	ret = lkl_sys_fcntl(pipe_fds[0], LKL_F_SETPIPE_SZ, 1);
+	if (ret < 0) {
+		lkl_test_logf("fcntl setpipe_sz: %s\n", lkl_strerror(ret));
+		return TEST_FAILURE;
+	}
+
+	tid = lkl_host_ops.thread_create(test_thread, pipe_fds);
+	if (!tid) {
+		lkl_test_logf("failed to create thread\n");
+		return TEST_FAILURE;
+	}
+
+	ret = lkl_sys_write(pipe_fds[1], tmp, sizeof(tmp));
+	if (ret != sizeof(tmp)) {
+		if (ret < 0)
+			lkl_test_logf("write error: %s\n", lkl_strerror(ret));
+		else
+			lkl_test_logf("short write: %ld\n", ret);
+		return TEST_FAILURE;
+	}
+
+	ret = lkl_host_ops.thread_join(tid);
+	if (ret) {
+		lkl_test_logf("failed to join thread\n");
+		return TEST_FAILURE;
+	}
+
+	return TEST_SUCCESS;
+}
+
+#ifndef __MINGW32__
+static void thread_get_pid(void *unused)
+{
+	lkl_sys_getpid();
+}
+
+static int lkl_test_many_syscall_threads(void)
+{
+	lkl_thread_t tid;
+	int count = 65, ret;
+
+	while (--count > 0) {
+		tid = lkl_host_ops.thread_create(thread_get_pid, NULL);
+		if (!tid) {
+			lkl_test_logf("failed to create thread\n");
+			return TEST_FAILURE;
+		}
+
+		ret = lkl_host_ops.thread_join(tid);
+		if (ret) {
+			lkl_test_logf("failed to join thread\n");
+			return TEST_FAILURE;
+		}
+	}
+
+	return TEST_SUCCESS;
+}
+#endif
+
+static void thread_quit_immediately(void *unused)
+{
+}
+
+static int lkl_test_join(void)
+{
+	lkl_thread_t tid = lkl_host_ops.thread_create(thread_quit_immediately,
+						      NULL);
+	int ret = lkl_host_ops.thread_join(tid);
+
+	if (ret == 0) {
+		lkl_test_logf("joined %ld\n", tid);
+		return TEST_SUCCESS;
+	} else {
+		lkl_test_logf("failed joining %ld\n", tid);
+		return TEST_FAILURE;
+	}
+}
+
+LKL_TEST_CALL(start_kernel, lkl_start_kernel, 0, &lkl_host_ops,
+	     "mem=16M loglevel=8");
+LKL_TEST_CALL(stop_kernel, lkl_sys_halt, 0);
+
+struct lkl_test tests[] = {
+	LKL_TEST(mutex),
+	LKL_TEST(semaphore),
+	LKL_TEST(join),
+	LKL_TEST(start_kernel),
+	LKL_TEST(getpid),
+	LKL_TEST(syscall_latency),
+	LKL_TEST(umask),
+	LKL_TEST(umask2),
+	LKL_TEST(creat),
+	LKL_TEST(close),
+	LKL_TEST(failopen),
+	LKL_TEST(open),
+	LKL_TEST(write),
+	LKL_TEST(lseek_cur),
+	LKL_TEST(lseek_end),
+	LKL_TEST(lseek_set),
+	LKL_TEST(read),
+	LKL_TEST(fstat),
+	LKL_TEST(mkdir),
+	LKL_TEST(stat),
+#ifndef __MINGW32__
+	LKL_TEST(nanosleep),
+#endif
+	LKL_TEST(pipe2),
+	LKL_TEST(epoll),
+	LKL_TEST(mount_fs_proc),
+	LKL_TEST(chdir_proc),
+	LKL_TEST(open_cwd),
+	LKL_TEST(getdents64),
+	LKL_TEST(close_dir_fd),
+	LKL_TEST(chdir_root),
+	LKL_TEST(umount_fs_proc),
+	LKL_TEST(lo_ifup),
+	LKL_TEST(gettid),
+	LKL_TEST(syscall_thread),
+	/*
+	 * Wine has an issue where the FlsCallback is not called when
+	 * the thread terminates which makes testing the automatic
+	 * syscall threads cleanup impossible under wine.
+	 */
+#ifndef __MINGW32__
+	LKL_TEST(many_syscall_threads),
+#endif
+	LKL_TEST(stop_kernel),
+};
+
+int main(int argc, const char **argv)
+{
+	lkl_host_ops.print = lkl_test_log;
+
+	return lkl_test_run(tests, sizeof(tests)/sizeof(struct lkl_test),
+			    "boot");
+}
diff --git a/tools/lkl/tests/boot.sh b/tools/lkl/tests/boot.sh
new file mode 100755
index 000000000000..d985c04b0ac1
--- /dev/null
+++ b/tools/lkl/tests/boot.sh
@@ -0,0 +1,9 @@ 
+#!/usr/bin/env bash
+# SPDX-License-Identifier: GPL-2.0
+
+script_dir=$(cd $(dirname ${BASH_SOURCE:-$0}); pwd)
+source $script_dir/test.sh
+
+lkl_test_plan 1 "boot"
+lkl_test_run 1
+lkl_test_exec $script_dir/boot
diff --git a/tools/lkl/tests/cla.c b/tools/lkl/tests/cla.c
new file mode 100644
index 000000000000..a34badeb5f06
--- /dev/null
+++ b/tools/lkl/tests/cla.c
@@ -0,0 +1,159 @@ 
+// SPDX-License-Identifier: GPL-2.0
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <stdlib.h>
+#ifdef __MINGW32__
+#include <winsock2.h>
+#else
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#endif
+
+#include "cla.h"
+
+static int cl_arg_parse_bool(struct cl_arg *arg, const char *value)
+{
+	*((int *)arg->store) = 1;
+	return 0;
+}
+
+static int cl_arg_parse_str(struct cl_arg *arg, const char *value)
+{
+	*((const char **)arg->store) = value;
+	return 0;
+}
+
+static int cl_arg_parse_int(struct cl_arg *arg, const char *value)
+{
+	errno = 0;
+	*((int *)arg->store) = strtol(value, NULL, 0);
+	return errno == 0;
+}
+
+static int cl_arg_parse_str_set(struct cl_arg *arg, const char *value)
+{
+	const char **set = arg->set;
+	int i;
+
+	for (i = 0; set[i] != NULL; i++) {
+		if (strcmp(set[i], value) == 0) {
+			*((int *)arg->store) = i;
+			return 0;
+		}
+	}
+
+	return -1;
+}
+
+static int cl_arg_parse_ipv4(struct cl_arg *arg, const char *value)
+{
+	unsigned int addr;
+
+	if (!value)
+		return -1;
+
+	addr = inet_addr(value);
+	if (addr == INADDR_NONE)
+		return -1;
+	*((unsigned int *)arg->store) = addr;
+	return 0;
+}
+
+static cl_arg_parser_t parsers[] = {
+	[CL_ARG_BOOL] = cl_arg_parse_bool,
+	[CL_ARG_INT] = cl_arg_parse_int,
+	[CL_ARG_STR] = cl_arg_parse_str,
+	[CL_ARG_STR_SET] = cl_arg_parse_str_set,
+	[CL_ARG_IPV4] = cl_arg_parse_ipv4,
+};
+
+static struct cl_arg *find_short_arg(char name, struct cl_arg *args)
+{
+	struct cl_arg *arg;
+
+	for (arg = args; arg->short_name != 0; arg++) {
+		if (arg->short_name == name)
+			return arg;
+	}
+
+	return NULL;
+}
+
+static struct cl_arg *find_long_arg(const char *name, struct cl_arg *args)
+{
+	struct cl_arg *arg;
+
+	for (arg = args; arg->long_name; arg++) {
+		if (strcmp(arg->long_name, name) == 0)
+			return arg;
+	}
+
+	return NULL;
+}
+
+static void print_help(struct cl_arg *args)
+{
+	struct cl_arg *arg;
+
+	fprintf(stderr, "usage:\n");
+	for (arg = args; arg->long_name; arg++) {
+		fprintf(stderr, "-%c, --%-20s %s", arg->short_name,
+			arg->long_name, arg->help);
+		if (arg->type == CL_ARG_STR_SET) {
+			const char **set = arg->set;
+
+			fprintf(stderr, " [ ");
+			while (*set != NULL)
+				fprintf(stderr, "%s ", *(set++));
+			fprintf(stderr, "]");
+		}
+		fprintf(stderr, "\n");
+	}
+}
+
+int parse_args(int argc, const char **argv, struct cl_arg *args)
+{
+	int i;
+
+	for (i = 1; i < argc; i++) {
+		struct cl_arg *arg = NULL;
+		cl_arg_parser_t parser;
+
+		if (argv[i][0] == '-') {
+			if (argv[i][1] != '-')
+				arg = find_short_arg(argv[i][1], args);
+			else
+				arg = find_long_arg(&argv[i][2], args);
+		}
+
+		if (!arg) {
+			fprintf(stderr, "unknown option '%s'\n", argv[i]);
+			print_help(args);
+			return -1;
+		}
+
+		if (arg->type == CL_ARG_USER || arg->type >= CL_ARG_END)
+			parser = arg->parser;
+		else
+			parser = parsers[arg->type];
+
+		if (!parser) {
+			fprintf(stderr, "can't parse --'%s'/-'%c'\n",
+				arg->long_name, args->short_name);
+			return -1;
+		}
+
+		if (parser(arg, argv[i + 1]) < 0) {
+			fprintf(stderr, "can't parse '%s'\n", argv[i]);
+			print_help(args);
+			return -1;
+		}
+
+		if (arg->has_arg)
+			i++;
+	}
+
+	return 0;
+}
diff --git a/tools/lkl/tests/cla.h b/tools/lkl/tests/cla.h
new file mode 100644
index 000000000000..f8369be02e5a
--- /dev/null
+++ b/tools/lkl/tests/cla.h
@@ -0,0 +1,33 @@ 
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _LKL_TEST_CLA_H
+#define _LKL_TEST_CLA_H
+
+enum cl_arg_type {
+	CL_ARG_USER = 0,
+	CL_ARG_BOOL,
+	CL_ARG_INT,
+	CL_ARG_STR,
+	CL_ARG_STR_SET,
+	CL_ARG_IPV4,
+	CL_ARG_END,
+};
+
+struct cl_arg;
+
+typedef int (*cl_arg_parser_t)(struct cl_arg *arg, const char *value);
+
+struct cl_arg {
+	const char *long_name;
+	char short_name;
+	const char *help;
+	int has_arg;
+	enum cl_arg_type type;
+	void *store;
+	void *set;
+	cl_arg_parser_t parser;
+};
+
+int parse_args(int argc, const char **argv, struct cl_arg *args);
+
+
+#endif /* _LKL_TEST_CLA_H */
diff --git a/tools/lkl/tests/disk.c b/tools/lkl/tests/disk.c
new file mode 100644
index 000000000000..0aa039876b54
--- /dev/null
+++ b/tools/lkl/tests/disk.c
@@ -0,0 +1,189 @@ 
+// SPDX-License-Identifier: GPL-2.0
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include <time.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <lkl.h>
+#include <lkl_host.h>
+#ifndef __MINGW32__
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#else
+#include <windows.h>
+#endif
+
+#include "test.h"
+#include "cla.h"
+
+static struct {
+	int printk;
+	const char *disk;
+	const char *fstype;
+	int partition;
+} cla;
+
+struct cl_arg args[] = {
+	{"disk", 'd', "disk file to use", 1, CL_ARG_STR, &cla.disk},
+	{"partition", 'P', "partition to mount", 1, CL_ARG_INT, &cla.partition},
+	{"type", 't', "filesystem type", 1, CL_ARG_STR, &cla.fstype},
+	{0},
+};
+
+
+static struct lkl_disk disk;
+static int disk_id = -1;
+
+int lkl_test_disk_add(void)
+{
+#ifdef __MINGW32__
+	disk.handle = CreateFile(cla.disk, GENERIC_READ | GENERIC_WRITE,
+			       0, NULL, OPEN_EXISTING, 0, NULL);
+	if (!disk.handle)
+#else
+	disk.fd = open(cla.disk, O_RDWR);
+	if (disk.fd < 0)
+#endif
+		goto out_unlink;
+
+	disk.ops = NULL;
+
+	disk_id = lkl_disk_add(&disk);
+	if (disk_id < 0)
+		goto out_close;
+
+	goto out;
+
+out_close:
+#ifdef __MINGW32__
+	CloseHandle(disk.handle);
+#else
+	close(disk.fd);
+#endif
+
+out_unlink:
+#ifdef __MINGW32__
+	DeleteFile(cla.disk);
+#else
+	unlink(cla.disk);
+#endif
+
+out:
+	lkl_test_logf("disk fd/handle %x disk_id %d", disk.fd, disk_id);
+
+	if (disk_id >= 0)
+		return TEST_SUCCESS;
+
+	return TEST_FAILURE;
+}
+
+int lkl_test_disk_remove(void)
+{
+	int ret;
+
+	ret = lkl_disk_remove(disk);
+
+#ifdef __MINGW32__
+	CloseHandle(disk.handle);
+#else
+	close(disk.fd);
+#endif
+
+	if (ret == 0)
+		return TEST_SUCCESS;
+
+	return TEST_FAILURE;
+}
+
+
+static char mnt_point[32];
+
+LKL_TEST_CALL(mount_dev, lkl_mount_dev, 0, disk_id, cla.partition, cla.fstype,
+	      0, NULL, mnt_point, sizeof(mnt_point))
+
+static int lkl_test_umount_dev(void)
+{
+	long ret, ret2;
+
+	ret = lkl_sys_chdir("/");
+
+	ret2 = lkl_umount_dev(disk_id, cla.partition, 0, 1000);
+
+	lkl_test_logf("%ld %ld", ret, ret2);
+
+	if (!ret && !ret2)
+		return TEST_SUCCESS;
+
+	return TEST_FAILURE;
+}
+
+struct lkl_dir *dir;
+
+static int lkl_test_opendir(void)
+{
+	int err;
+
+	dir = lkl_opendir(mnt_point, &err);
+
+	lkl_test_logf("lkl_opedir(%s) = %d %s\n", mnt_point, err,
+		      lkl_strerror(err));
+
+	if (err == 0)
+		return TEST_SUCCESS;
+
+	return TEST_FAILURE;
+}
+
+static int lkl_test_readdir(void)
+{
+	struct lkl_linux_dirent64 *de = lkl_readdir(dir);
+	int wr = 0;
+
+	while (de) {
+		wr += lkl_test_logf("%s ", de->d_name);
+		if (wr >= 70) {
+			lkl_test_logf("\n");
+			wr = 0;
+			break;
+		}
+		de = lkl_readdir(dir);
+	}
+
+	if (lkl_errdir(dir) == 0)
+		return TEST_SUCCESS;
+
+	return TEST_FAILURE;
+}
+
+LKL_TEST_CALL(closedir, lkl_closedir, 0, dir);
+LKL_TEST_CALL(chdir_mnt_point, lkl_sys_chdir, 0, mnt_point);
+LKL_TEST_CALL(start_kernel, lkl_start_kernel, 0, &lkl_host_ops,
+	     "mem=16M loglevel=8");
+LKL_TEST_CALL(stop_kernel, lkl_sys_halt, 0);
+
+struct lkl_test tests[] = {
+	LKL_TEST(disk_add),
+	LKL_TEST(start_kernel),
+	LKL_TEST(mount_dev),
+	LKL_TEST(chdir_mnt_point),
+	LKL_TEST(opendir),
+	LKL_TEST(readdir),
+	LKL_TEST(closedir),
+	LKL_TEST(umount_dev),
+	LKL_TEST(stop_kernel),
+	LKL_TEST(disk_remove),
+
+};
+
+int main(int argc, const char **argv)
+{
+	if (parse_args(argc, argv, args) < 0)
+		return -1;
+
+	lkl_host_ops.print = lkl_test_log;
+
+	return lkl_test_run(tests, sizeof(tests)/sizeof(struct lkl_test),
+			    "disk %s", cla.fstype);
+}
diff --git a/tools/lkl/tests/disk.sh b/tools/lkl/tests/disk.sh
new file mode 100755
index 000000000000..e2ec6cf69d4b
--- /dev/null
+++ b/tools/lkl/tests/disk.sh
@@ -0,0 +1,70 @@ 
+#!/usr/bin/env bash
+# SPDX-License-Identifier: GPL-2.0
+
+script_dir=$(cd $(dirname ${BASH_SOURCE:-$0}); pwd)
+
+source $script_dir/test.sh
+
+function prepfs()
+{
+    set -e
+
+    file=`mktemp`
+
+    dd if=/dev/zero of=$file bs=1024 count=204800
+
+    yes | mkfs.$1 $file
+
+    if ! [ -z $ANDROID_WDIR ]; then
+        adb shell mkdir -p $ANDROID_WDIR
+        adb push $file $ANDROID_WDIR
+        rm $file
+        file=$ANDROID_WDIR/$(basename $file)
+    fi
+    if ! [ -z $BSD_WDIR ]; then
+        $MYSSH mkdir -p $BSD_WDIR
+        ssh_copy $file $BSD_WDIR
+        rm $file
+        file=$BSD_WDIR/$(basename $file)
+    fi
+
+    export_vars file
+}
+
+function cleanfs()
+{
+    set -e
+
+    if ! [ -z $ANDROID_WDIR ]; then
+        adb shell rm $1
+        adb shell rm $ANDROID_WDIR/disk
+    elif ! [ -z $BSD_WDIR ]; then
+        $MYSSH rm $1
+        $MYSSH rm $BSD_WDIR/disk
+    else
+        rm $1
+    fi
+}
+
+if [ "$1" = "-t" ]; then
+    shift
+    fstype=$1
+    shift
+fi
+
+if [ -z "$fstype" ]; then
+    fstype="ext4"
+fi
+
+if [ -z $(which mkfs.$fstype) ]; then
+    lkl_test_plan 0 "disk $fstype"
+    echo "no mkfs.$fstype command"
+    exit 0
+fi
+
+lkl_test_plan 1 "disk $fstype"
+lkl_test_run 1 prepfs $fstype
+lkl_test_exec $script_dir/disk -d $file -t $fstype $@
+lkl_test_plan 1 "disk $fstype"
+lkl_test_run 1 cleanfs $file
+
diff --git a/tools/lkl/tests/run.py b/tools/lkl/tests/run.py
new file mode 100755
index 000000000000..f21733339fe9
--- /dev/null
+++ b/tools/lkl/tests/run.py
@@ -0,0 +1,186 @@ 
+#!/usr/bin/env python
+# SPDX-License-Identifier: GPL-2.0
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; version 2 of the License
+#
+# Author: Octavian Purdila <tavi@cs.pub.ro>
+#
+
+from __future__ import print_function
+
+import argparse
+import os
+import subprocess
+import sys
+import tap13
+import xml.etree.ElementTree as ET
+
+from junit_xml import TestSuite, TestCase
+
+
+class Reporter(tap13.Reporter):
+    def start(self, obj):
+        if type(obj) is tap13.Test:
+            if obj.result == "*":
+                end='\r'
+            else:
+                end='\n'
+            print("  TEST       %-8s %.50s" %
+                  (obj.result, obj.description + " " + obj.comment), end=end)
+
+        elif type(obj) is tap13.Suite:
+            if obj.tests_planned == 0:
+                status = "skip"
+            else:
+                status = ""
+            print("  SUITE      %-8s %s" % (status, obj.name))
+
+    def end(self, obj):
+        if type(obj) is tap13.Test:
+            if obj.result != "ok":
+                try:
+                    print(obj.yaml["log"], end='')
+                except:
+                    None
+
+
+mydir=os.path.dirname(os.path.realpath(__file__))
+
+tests = [
+    'boot.sh',
+    'disk.sh -t ext4',
+    'disk.sh -t btrfs',
+    'disk.sh -t vfat',
+    'disk.sh -t xfs',
+    'net.sh -b loopback',
+    'net.sh -b tap',
+    'net.sh -b pipe',
+    'net.sh -b raw',
+    'net.sh -b macvtap',
+    'lklfuse.sh -t ext4',
+    'lklfuse.sh -t btrfs',
+    'lklfuse.sh -t vfat',
+    'lklfuse.sh -t xfs',
+    'hijack-test.sh'
+]
+
+parser = argparse.ArgumentParser(description='LKL test runner')
+parser.add_argument('tests', nargs='?', action='append',
+                    help='tests to run %s' % tests)
+parser.add_argument('--junit-dir',
+                    help='directory where to store the juni suites')
+parser.add_argument('--gdb', action='store_true', default=False,
+                    help='run simple tests under gdb; implies --pass-through')
+parser.add_argument('--pass-through', action='store_true',  default=False,
+                    help='run the test without interpeting the test output')
+parser.add_argument('--valgrind', action='store_true', default=False,
+                    help='run simple tests under valgrind')
+
+args = parser.parse_args()
+if args.tests == [None]:
+    args.tests = tests
+
+if args.gdb:
+    args.pass_through=True
+    os.environ['GDB']="yes"
+
+if args.valgrind:
+    os.environ['VALGRIND']="yes"
+
+tap = tap13.Parser(Reporter())
+
+os.environ['PATH'] += ":" + mydir
+
+exit_code = 0
+
+for t in args.tests:
+    if not t:
+        continue
+    if args.pass_through:
+        print(t)
+        if subprocess.call(t, shell=True) != 0:
+            exit_code = 1
+    else:
+        p = subprocess.Popen(t, shell=True, stdout=subprocess.PIPE)
+        tap.parse(p.stdout)
+
+if args.pass_through:
+    sys.exit(exit_code)
+
+suites_count = 0
+tests_total = 0
+tests_not_ok = 0
+tests_ok = 0
+tests_skip = 0
+val_errs = 0
+val_fails = 0
+val_skips = 0
+
+for s in tap.run.suites:
+
+    junit_tests = []
+    suites_count += 1
+
+    for t in s.tests:
+        try:
+            secs = t.yaml["time_us"] / 1000000.0
+        except:
+            secs = 0
+        try:
+            log = t.yaml['log']
+        except:
+            log = ""
+
+        jt = TestCase(t.description, elapsed_sec=secs, stdout=log)
+        if t.result == 'skip':
+            jt.add_skipped_info(output=log)
+        elif t.result == 'not ok':
+            jt.add_error_info(output=log)
+
+        junit_tests.append(jt)
+
+        tests_total += 1
+        if t.result == "ok":
+            tests_ok += 1
+        elif t.result == "not ok":
+            tests_not_ok += 1
+            exit_code = 1
+        elif t.result == "skip":
+            tests_skip += 1
+
+    if args.junit_dir:
+        js = TestSuite(s.name, junit_tests)
+        with open(os.path.join(args.junit_dir, os.path.basename(s.name) + '.xml'), 'w') as f:
+            js.to_file(f, [js])
+
+        if os.getenv('VALGRIND') is not None:
+            val_xml = 'valgrind-%s.xml' % os.path.basename(s.name).replace(' ','-')
+            # skipped tests don't generate xml file
+            if os.path.exists(val_xml) is False:
+                continue
+
+            cmd = 'mv %s %s' % (val_xml, args.junit_dir)
+            subprocess.call(cmd, shell=True, )
+
+            cmd = mydir + '/valgrind2xunit.py ' + val_xml
+            subprocess.call(cmd, shell=True, cwd=args.junit_dir)
+
+            # count valgrind results
+            doc = ET.parse(os.path.join(args.junit_dir, 'valgrind-%s_xunit.xml' \
+                                        % (os.path.basename(s.name).replace(' ','-'))))
+            ts = doc.getroot()
+            val_errs += int(ts.get('errors'))
+            val_fails += int(ts.get('failures'))
+            val_skips += int(ts.get('skip'))
+
+print("Summary: %d suites run, %d tests, %d ok, %d not ok, %d skipped" %
+      (suites_count, tests_total, tests_ok, tests_not_ok, tests_skip))
+
+if os.getenv('VALGRIND') is not None:
+    print(" valgrind (memcheck): %d failures, %d skipped" % (val_fails, val_skips))
+    if val_errs or val_fails:
+        exit_code = 1
+
+sys.exit(exit_code)
diff --git a/tools/lkl/tests/tap13.py b/tools/lkl/tests/tap13.py
new file mode 100644
index 000000000000..65c73cda7ca1
--- /dev/null
+++ b/tools/lkl/tests/tap13.py
@@ -0,0 +1,209 @@ 
+#!/usr/bin/env python
+# SPDX-License-Identifier: GPL-2.0
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; version 2 of the License
+#
+# Author: Octavian Purdila <tavi@cs.pub.ro>
+#
+# Based on TAP13:
+#
+# Copyright 2013, Red Hat, Inc.
+# Author: Josef Skladanka <jskladan@redhat.com>
+#
+from __future__ import print_function
+
+import re
+import sys
+import yamlish
+
+
+class Reporter(object):
+
+    def start(self, obj):
+        None
+
+    def end(self, obj):
+        None
+
+
+class Test(object):
+    def __init__(self, reporter, result, id, description=None, directive=None,
+                 comment=None):
+        self.reporter = reporter
+        self.result = result
+        if directive:
+            self.result = directive.lower()
+        if id:
+            self.id = int(id)
+        else:
+            self.id = None
+        if description:
+            self.description = description
+        else:
+            self.description = ""
+        if comment:
+            self.comment = "# " + comment
+        else:
+            self.comment = ""
+        self.yaml = None
+        self._yaml_buffer = None
+        self.diagnostics = []
+
+        self.reporter.start(self)
+
+    def end(self):
+        if not self.yaml:
+            self.yaml = yamlish.load(self._yaml_buffer)
+            self.reporter.end(self)
+
+
+class Suite(object):
+    def __init__(self, reporter, start, end, explanation):
+        self.reporter = reporter
+        self.tests = []
+        self.name = explanation
+        self.tests_planned = int(end)
+
+        self.__tests_counter = 0
+        self.__tests_base = 0
+
+        self.reporter.start(self)
+
+    def newTest(self, args):
+        try:
+            self.tests[-1].end()
+        except IndexError:
+            None
+
+        if 'id' not in args or not args['id']:
+            args['id'] = self.__tests_counter
+        else:
+            args['id'] = int(args['id']) + self.__tests_base
+
+        if args['id'] < self.__tests_counter:
+            print("error: bad test id %d, fixing it" % (args['id']))
+            args['id'] = self.__tests_counter
+        # according to TAP13 specs, missing tests must be handled as 'not ok'
+        # here we add the missing tests in sequence
+        while args['id'] > (self.__tests_counter + 1):
+            comment = 'test %d not present' % self.__tests_counter
+            self.tests.append(Test(self.reporter, 'not ok',
+                                   self.__tests_counter, comment=comment))
+            self.__tests_counter += 1
+
+        if args['id'] == self.__tests_counter:
+            if args['directive']:
+                self.test().result = args['directive'].lower()
+            else:
+                self.test().result = args['result']
+            self.reporter.start(self.test())
+        else:
+            self.tests.append(Test(self.reporter, **args))
+            self.__tests_counter += 1
+
+    def test(self):
+        return self.tests[-1]
+
+    def end(self, name, planned):
+        if name == self.name:
+            self.tests_planned += int(planned)
+            self.__tests_base = self.__tests_counter
+            return False
+        try:
+            self.test().end()
+        except IndexError:
+            None
+        if len(self.tests) != self.tests_planned:
+            for i in range(len(self.tests), self.tests_planned):
+                self.tests.append(Test(self.reporter, 'not ok', i+1,
+                                       comment='test not present'))
+        return True
+
+
+class Run(object):
+
+    def __init__(self, reporter):
+        self.reporter = reporter
+        self.suites = []
+
+    def suite(self):
+        return self.suites[-1]
+
+    def test(self):
+        return self.suites[-1].tests[-1]
+
+    def newSuite(self, args):
+        new = False
+        try:
+            if self.suite().end(args['explanation'], args['end']):
+                new = True
+        except IndexError:
+            new = True
+        if new:
+            self.suites.append(Suite(self.reporter, **args))
+
+    def newTest(self, args):
+        self.suite().newTest(args)
+
+
+class Parser(object):
+    RE_PLAN = re.compile(r"^\s*(?P<start>\d+)\.\.(?P<end>\d+)\s*(#\s*(?P<explanation>.*))?\s*$")
+    RE_TEST_LINE = re.compile(r"^\s*(?P<result>(not\s+)?ok|[*]+)\s*(?P<id>\d+)?\s*(?P<description>[^#]+)?\s*(#\s*(?P<directive>TODO|SKIP)?\s*(?P<comment>.+)?)?\s*$",  re.IGNORECASE)
+    RE_EXPLANATION = re.compile(r"^\s*#\s*(?P<explanation>.+)?\s*$")
+    RE_YAMLISH_START = re.compile(r"^\s*---.*$")
+    RE_YAMLISH_END = re.compile(r"^\s*\.\.\.\s*$")
+
+    def __init__(self, reporter):
+        self.seek_test = False
+        self.in_test = False
+        self.in_yaml = False
+        self.run = Run(reporter)
+
+    def parse(self, source):
+        # to avoid input buffering
+        while True:
+            line = source.readline()
+            if not line:
+                break
+
+            if self.in_yaml:
+                if Parser.RE_YAMLISH_END.match(line):
+                    self.run.test()._yaml_buffer.append(line.strip())
+                    self.in_yaml = False
+                else:
+                    self.run.test()._yaml_buffer.append(line.rstrip())
+                continue
+
+            line = line.strip()
+
+            if self.in_test:
+                if Parser.RE_EXPLANATION.match(line):
+                    self.run.test().diagnostics.append(line)
+                    continue
+                if Parser.RE_YAMLISH_START.match(line):
+                    self.run.test()._yaml_buffer = [line.strip()]
+                    self.in_yaml = True
+                    continue
+
+            m = Parser.RE_PLAN.match(line)
+            if m:
+                self.seek_test = True
+                args = m.groupdict()
+                self.run.newSuite(args)
+                continue
+
+            if self.seek_test:
+                m = Parser.RE_TEST_LINE.match(line)
+                if m:
+                    args = m.groupdict()
+                    self.run.newTest(args)
+                    self.in_test = True
+                    continue
+
+            print(line)
+        try:
+            self.run.suite().end(None, 0)
+        except IndexError:
+            None
diff --git a/tools/lkl/tests/test.c b/tools/lkl/tests/test.c
new file mode 100644
index 000000000000..3e334d106c48
--- /dev/null
+++ b/tools/lkl/tests/test.c
@@ -0,0 +1,126 @@ 
+// SPDX-License-Identifier: GPL-2.0
+#include <stdio.h>
+#include <stdarg.h>
+#include <time.h>
+
+#include "test.h"
+
+/* circular log buffer */
+
+static char log_buf[0x10000];
+static char *head = log_buf, *tail = log_buf;
+
+static inline void advance(char **ptr)
+{
+	if ((unsigned int)(*ptr - log_buf) >= sizeof(log_buf))
+		*ptr = log_buf;
+	else
+		*ptr = *ptr + 1;
+}
+
+static void log_char(char c)
+{
+	*tail = c;
+	advance(&tail);
+	if (tail == head)
+		advance(&head);
+}
+
+static void print_log(void)
+{
+	char last;
+
+	printf(" log: |\n");
+	last = '\n';
+	while (head != tail) {
+		if (last == '\n')
+			printf("  ");
+		last = *head;
+		putchar(last);
+		advance(&head);
+	}
+	if (last != '\n')
+		putchar('\n');
+}
+
+int lkl_test_run(const struct lkl_test *tests, int nr, const char *fmt, ...)
+{
+	int i, ret, status = TEST_SUCCESS;
+	clock_t start, stop;
+	char name[1024];
+	va_list args;
+
+	va_start(args, fmt);
+	vsnprintf(name, sizeof(name), fmt, args);
+	va_end(args);
+
+	printf("1..%d # %s\n", nr, name);
+	for (i = 1; i <= nr; i++) {
+		const struct lkl_test *t = &tests[i-1];
+		unsigned long delta_us;
+
+		printf("* %d %s\n", i, t->name);
+		fflush(stdout);
+
+		start = clock();
+
+		ret = t->fn(t->arg1, t->arg2, t->arg3);
+
+		stop = clock();
+
+		switch (ret) {
+		case TEST_SUCCESS:
+			printf("ok %d %s\n", i, t->name);
+			break;
+		case TEST_SKIP:
+			printf("ok %d %s # SKIP\n", i, t->name);
+			break;
+		case TEST_BAILOUT:
+			status = TEST_BAILOUT;
+			/* fall through */
+		case TEST_FAILURE:
+		default:
+			if (status != TEST_BAILOUT)
+				status = TEST_FAILURE;
+			printf("not ok %d %s\n", i, t->name);
+		}
+
+		printf(" ---\n");
+		delta_us = (stop - start) * 1000000 / CLOCKS_PER_SEC;
+		printf(" time_us: %ld\n", delta_us);
+		print_log();
+		printf(" ...\n");
+
+		if (status == TEST_BAILOUT) {
+			printf("Bail out!\n");
+			return TEST_FAILURE;
+		}
+
+		fflush(stdout);
+	}
+
+	return status;
+}
+
+
+void lkl_test_log(const char *str, int len)
+{
+	while (len--)
+		log_char(*(str++));
+}
+
+int lkl_test_logf(const char *fmt, ...)
+{
+	char tmp[1024], *c;
+	va_list args;
+	unsigned int n;
+
+	va_start(args, fmt);
+	n = vsnprintf(tmp, sizeof(tmp), fmt, args);
+	va_end(args);
+
+	for (c = tmp; *c != 0; c++)
+		log_char(*c);
+
+	return n > sizeof(tmp) ? sizeof(tmp) : n;
+}
diff --git a/tools/lkl/tests/test.h b/tools/lkl/tests/test.h
new file mode 100644
index 000000000000..f63ad6d419cb
--- /dev/null
+++ b/tools/lkl/tests/test.h
@@ -0,0 +1,72 @@ 
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _LKL_TEST_H
+#define _LKL_TEST_H
+
+#define TEST_SUCCESS	0
+#define TEST_FAILURE	1
+#define TEST_SKIP	2
+#define TEST_TODO	3
+#define TEST_BAILOUT	4
+
+struct lkl_test {
+	const char *name;
+	int (*fn)();
+	void *arg1, *arg2, *arg3;
+};
+
+/**
+ * Simple wrapper to initialize a test entry.
+ * @name - test name, it assume test function is named test_@name
+ * @vargs - arguments to be passed to the function
+ */
+#define LKL_TEST(name, ...) { #name, lkl_test_##name, __VA_ARGS__ }
+
+/**
+ * lkl_test_run - run a test suite
+ *
+ * @tests - the list of tests to run
+ * @nr - number of tests
+ * @fmt - format string to be used for suite name
+ */
+int lkl_test_run(const struct lkl_test *tests, int nr, const char *fmt, ...);
+
+/**
+ * lkl_test_log - store a string in the test log buffer
+ * @str - the string to log (can be non-NULL terminated)
+ * @len - the string length
+ */
+void lkl_test_log(const char *str, int len);
+
+/**
+ * lkl_test_logf - printf like function to store into the test log buffer
+ * @fmt - printf format string
+ * @vargs - arguments to the format string
+ */
+int lkl_test_logf(const char *fmt, ...) __attribute__((format(printf, 1, 2)));
+
+/**
+ * LKL_TEST_CALL - create a test function as for a LKL call
+ *
+ * The test function will be named lkl_test_@name and will return
+ * TEST_SUCCESS if the called functions returns @expect. Otherwise
+ * will return TEST_FAILUIRE.
+ *
+ * @name - test name; must be unique because it is part of the the
+ * test function; the test function will be named
+ * @call - function to call
+ * @expect - expected return value for success
+ * @args - arguments to pass to the LKL call
+ */
+#define LKL_TEST_CALL(name, call, expect, ...)				\
+	static int lkl_test_##name(void)				\
+	{								\
+		long ret;						\
+									\
+		ret = call(__VA_ARGS__);				\
+		lkl_test_logf("%s(%s) = %ld %s\n", #call, #__VA_ARGS__, \
+			ret, ret < 0 ? lkl_strerror(ret) : "");		\
+		return (ret == expect) ? TEST_SUCCESS : TEST_FAILURE;	\
+	}
+
+
+#endif /* _LKL_TEST_H */
diff --git a/tools/lkl/tests/test.sh b/tools/lkl/tests/test.sh
new file mode 100644
index 000000000000..f1500d19de20
--- /dev/null
+++ b/tools/lkl/tests/test.sh
@@ -0,0 +1,240 @@ 
+#!/usr/bin/env bash
+# SPDX-License-Identifier: GPL-2.0
+
+script_dir=$(cd $(dirname ${BASH_SOURCE:-$0}); pwd)
+basedir=$(cd $script_dir/..; pwd)
+source ${script_dir}/autoconf.sh
+
+TEST_SUCCESS=0
+TEST_FAILURE=1
+TEST_SKIP=113
+TEST_TODO=114
+TEST_BAILOUT=115
+
+print_log()
+{
+    echo " log: |"
+    while read line; do
+        echo "  $line"
+    done < $1
+}
+
+export_vars()
+{
+    if [ -z "$var_file" ]; then
+        return
+    fi
+
+    for i in $@; do
+        echo "$i=${!i}" >> $var_file
+    done
+}
+
+lkl_test_run()
+{
+    log_file=$(mktemp)
+    export var_file=$(mktemp)
+
+    tid=$1 && shift && tname=$@
+
+    echo "* $tid $tname"
+
+    start=$(date '+%s%9N')
+    # run in a separate shell to avoid -e terminating us
+    $@ 2>&1 | strings >$log_file
+    exit=${PIPESTATUS[0]}
+    stop=$(date '+%s%9N')
+
+    case $exit in
+    $TEST_SUCCESS)
+        echo "ok $tid $tname"
+        ;;
+    $TEST_SKIP)
+        echo "ok $tid $tname # SKIP"
+        ;;
+    $TEST_BAILOUT)
+        echo "not ok $tid $tname"
+        echo "Bail out!"
+        ;;
+    $TEST_FAILURE|*)
+        echo "not ok $tid $tname"
+        ;;
+    esac
+
+    delta=$(((stop-start)/1000))
+
+    echo " ---"
+    echo " time_us: $delta"
+    print_log $log_file
+    echo -e " ..."
+
+    rm $log_file
+    . $var_file
+    rm $var_file
+
+    return $exit
+}
+
+lkl_test_plan()
+{
+    echo "1..$1 # $2"
+    export suite_name="${2// /\-}"
+}
+
+lkl_test_exec()
+{
+    local SUDO=""
+    local WRAPPER=""
+
+    if [ "$1" = "sudo" ]; then
+        SUDO=sudo
+        shift
+    fi
+
+    local file=$1
+    shift
+
+    if [ -n "$LKL_HOST_CONFIG_NT" ]; then
+        file=$file.exe
+    fi
+
+    if file $file | grep "interpreter /system/bin/linker" ; then
+        adb push "$file" $ANDROID_WDIR
+        if [ -n "$SUDO" ]; then
+            ANDROID_USER=root
+            SUDO=""
+        fi
+        if [ -n "$ANDROID_USER" ]; then
+            SU="su $ANDROID_USER"
+        else
+            SU=""
+        fi
+        WRAPPER="adb shell $SU"
+        file=$ANDROID_WDIR/$(basename $file)
+    elif file $file | grep PE32; then
+        WRAPPER="wine"
+    elif file $file | grep ARM; then
+        WRAPPER="qemu-arm-static"
+    elif file $file | grep "FreeBSD" ; then
+        ssh_copy "$file" $BSD_WDIR
+        if [ -n "$SUDO" ]; then
+            SUDO=""
+        fi
+        WRAPPER="$MYSSH $SU"
+        # ssh will mess up with pipes ('|') so, escape the pipe char.
+        args="${@//\|/\\\|}"
+        set - $BSD_WDIR/$(basename $file) $args
+        file=""
+    elif [ -n "$GDB" ]; then
+        WRAPPER="gdb"
+        args="$@"
+        set - -ex "run $args" -ex quit $file
+        file=""
+    elif [ -n "$VALGRIND" ]; then
+        WRAPPER="valgrind --suppressions=$script_dir/valgrind.supp \
+                  --leak-check=full --show-leak-kinds=all --xml=yes \
+                  --xml-file=valgrind-$suite_name.xml"
+    fi
+
+    $SUDO $WRAPPER $file "$@"
+}
+
+lkl_test_cmd()
+{
+    local WRAPPER=""
+
+    if [ -z "$QUIET" ]; then
+        SHOPTS="-x"
+    fi
+
+    if [ -n "$LKL_HOST_CONFIG_ANDROID" ]; then
+        if [ "$1" = "sudo" ]; then
+            ANDROID_USER=root
+            shift
+        fi
+        if [ -n "$ANDROID_USER" ]; then
+            SU="su $ANDROID_USER"
+        else
+            SU=""
+        fi
+        WRAPPER="adb shell $SU"
+    elif [ -n "$LKL_HOST_CONFIG_BSD" ]; then
+        WRAPPER="$MYSSH $SU"
+    fi
+
+    echo "$@" | $WRAPPER sh $SHOPTS
+}
+
+adb_push()
+{
+    while [ -n "$1" ]; do
+        if [[ "$1" = *.sh ]]; then
+            type="script"
+        else
+            type="file"
+        fi
+
+        dir=$(dirname $1)
+        adb shell mkdir -p $ANDROID_WDIR/$dir
+
+        if [ "$type" = "script" ]; then
+            sed "s/\/usr\/bin\/env bash/\/system\/bin\/sh/" $basedir/$1 | \
+                adb shell cat \> $ANDROID_WDIR/$1
+            adb shell chmod a+x $ANDROID_WDIR/$1
+        else
+            adb push $basedir/$1 $ANDROID_WDIR/$dir
+        fi
+
+        shift
+    done
+}
+
+# XXX: $MYSSH and $MYSCP are defined in a circleci docker image.
+# see the definitions in lkl/lkl-docker:circleci/freebsd11/Dockerfile
+ssh_push()
+{
+    while [ -n "$1" ]; do
+        if [[ "$1" = *.sh ]]; then
+            type="script"
+        else
+            type="file"
+        fi
+
+        dir=$(dirname $1)
+        $MYSSH mkdir -p $BSD_WDIR/$dir
+
+        $MYSCP -P 7722 -r $basedir/$1 root@localhost:$BSD_WDIR/$dir
+        if [ "$type" = "script" ]; then
+            $MYSSH chmod a+x $BSD_WDIR/$1
+        fi
+
+        shift
+    done
+}
+
+ssh_copy()
+{
+    $MYSCP -P 7722 -r $1 root@localhost:$2
+}
+
+lkl_test_android_cleanup()
+{
+    adb shell rm -rf $ANDROID_WDIR
+}
+
+lkl_test_bsd_cleanup()
+{
+    $MYSSH rm -rf $BSD_WDIR
+}
+
+if [ -n "$LKL_HOST_CONFIG_ANDROID" ]; then
+    trap lkl_test_android_cleanup EXIT
+    export ANDROID_WDIR=/data/local/tmp/lkl
+    adb shell mkdir -p $ANDROID_WDIR
+fi
+
+if [ -n "$LKL_HOST_CONFIG_BSD" ]; then
+    trap lkl_test_bsd_cleanup EXIT
+    export BSD_WDIR=/root/lkl
+    $MYSSH mkdir -p $BSD_WDIR
+fi
diff --git a/tools/lkl/tests/valgrind.supp b/tools/lkl/tests/valgrind.supp
new file mode 100644
index 000000000000..5ce717d759fc
--- /dev/null
+++ b/tools/lkl/tests/valgrind.supp
@@ -0,0 +1,85 @@ 
+{
+   <unfinished timer 1>
+   Memcheck:Leak
+   match-leak-kinds: possible
+   ...
+   fun:pthread_create@@GLIBC_2.2.5
+   fun:__start_helper_thread
+   fun:__pthread_once_slow
+   fun:timer_create@@GLIBC_2.3.3
+   fun:timer_alloc
+   fun:clockevent_set_state_oneshot
+   ...
+   fun:__clockevents_switch_state
+   fun:clockevents_switch_state
+   fun:tick_setup_periodic
+   ...
+}
+
+{
+   <pid1 kernel thread>
+   Memcheck:Leak
+   match-leak-kinds: possible
+   ...
+   fun:thread_create
+   fun:copy_thread
+   fun:copy_thread_tls
+   ...
+   fun:rest_init
+   fun:start_kernel
+   fun:lkl_run_kernel
+}
+
+{
+   <xfs uninitialized buf error: delete this once upstream is fixed>
+   Memcheck:Value8
+   fun:crc32_body
+   fun:crc32_le_generic
+   fun:__crc32c_le
+   fun:chksum_update
+   fun:crypto_shash_update
+   fun:crc32c
+   fun:xlog_cksum
+}
+
+{
+   <xfs pwrite64 issue: delete this once upstream is fixed>
+   Memcheck:Param
+   pwrite64(buf)
+   ...
+   fun:blk_request
+   fun:blk_enqueue
+   fun:virtio_process_one
+   fun:virtio_process_queue
+   fun:virtio_write
+   fun:__raw_writel
+   fun:writel
+   fun:vm_notify
+   fun:virtqueue_notify
+   fun:virtio_queue_rq
+   fun:blk_mq_dispatch_rq_list
+   fun:blk_mq_sched_dispatch_requests
+}
+
+{
+   <virtio_net_pipe xmits>
+   Memcheck:Param
+   writev(vector[...])
+   ...
+   fun:fd_net_tx
+   fun:net_enqueue
+   fun:virtio_process_one
+   fun:virtio_process_queue
+   fun:virtio_write
+   fun:__raw_writel
+   fun:writel
+   fun:vm_notify
+   fun:virtqueue_notify
+   fun:virtqueue_kick
+   fun:start_xmit
+   fun:__netdev_start_xmit
+   fun:netdev_start_xmit
+   fun:xmit_one
+   fun:dev_hard_start_xmit
+   fun:sch_direct_xmit
+}
\ No newline at end of file
diff --git a/tools/lkl/tests/valgrind2xunit.py b/tools/lkl/tests/valgrind2xunit.py
new file mode 100755
index 000000000000..ab7c12b83377
--- /dev/null
+++ b/tools/lkl/tests/valgrind2xunit.py
@@ -0,0 +1,69 @@ 
+#!/usr/bin/env python
+# SPDX-License-Identifier: GPL-2.0
+
+##
+## Downloader from
+## http://humdi.net/wiki/tips/valgrind-to-xunit-xml-converter
+##
+
+import xml.etree.ElementTree as ET
+import sys
+import os
+
+fname = sys.argv[1]
+if fname is None:
+    fname = 'valgrind.xml'
+
+doc = ET.parse(fname)
+errors = doc.findall('.//error')
+
+out = open(os.path.splitext(os.path.basename(fname))[0]+'_xunit.xml',"w")
+out.write('<?xml version="1.0" encoding="UTF-8"?>\n')
+out.write('<testsuite name="valgrind" tests="'+str(len(errors))+'" errors="0" failures="'+str(len(errors))+'" skip="0">\n')
+errorcount=0
+for error in errors:
+    errorcount=errorcount+1
+
+    kind = error.find('kind')
+    what = error.find('what')
+    if  what == None:
+        what = error.find('xwhat/text')
+
+    stack = error.find('stack')
+    frames = stack.findall('frame')
+
+    for frame in frames:
+        fi = frame.find('file')
+        li = frame.find('line')
+        if fi != None and li != None:
+            break
+
+    if fi != None and li != None:
+        out.write('    <testcase classname="ValgrindMemoryCheck" name="Memory check '+str(errorcount)+' ('+kind.text+', '+fi.text+':'+li.text+')" time="0">\n')
+    else:
+        out.write('    <testcase classname="ValgrindMemoryCheck" name="Memory check '+str(errorcount)+' ('+kind.text+')" time="0">\n')
+    out.write('        <error type="'+kind.text+'">\n')
+    out.write('  '+what.text+'\n\n')
+
+    for frame in frames:
+        ip = frame.find('ip')
+        fn = frame.find('fn')
+        fi = frame.find('file')
+        li = frame.find('line')
+
+        if fn is None:
+            bodytext = '(unresolved symbol)'
+        else:
+            bodytext = fn.text
+        bodytext = bodytext.replace("&","&amp;")
+        bodytext = bodytext.replace("<","&lt;")
+        bodytext = bodytext.replace(">","&gt;")
+        if fi != None and li != None:
+            out.write('  '+ip.text+': '+bodytext+' ('+fi.text+':'+li.text+')\n')
+        else:
+            out.write('  '+ip.text+': '+bodytext+'\n')
+
+    out.write('        </error>\n')
+    out.write('    </testcase>\n')
+out.write('</testsuite>\n')
+out.close()