diff --git a/zephyr/test/CMakeLists.txt b/zephyr/test/CMakeLists.txt
index 767d0984d1c5..e67d481b9dd0 100644
--- a/zephyr/test/CMakeLists.txt
+++ b/zephyr/test/CMakeLists.txt
@@ -1,7 +1,10 @@
 if (CONFIG_SOF_BOOT_TEST)
-       zephyr_library_sources_ifdef(CONFIG_VIRTUAL_HEAP
-               vmh.c
-       )
+	zephyr_library_sources_ifdef(CONFIG_VIRTUAL_HEAP
+		vmh.c
+	)
+	zephyr_library_sources_ifdef(CONFIG_USERSPACE
+		userspace/ksem.c
+	)
 endif()
 
 if (CONFIG_SOF_BOOT_TEST_STANDALONE)
diff --git a/zephyr/test/userspace/ksem.c b/zephyr/test/userspace/ksem.c
new file mode 100644
index 000000000000..d8f9e6f71666
--- /dev/null
+++ b/zephyr/test/userspace/ksem.c
@@ -0,0 +1,62 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/*
+ * Copyright(c) 2025 Intel Corporation.
+ */
+
+#include <sof/boot_test.h>
+
+#include <zephyr/kernel.h>
+#include <zephyr/ztest.h>
+#include <zephyr/logging/log.h>
+
+LOG_MODULE_DECLARE(sof_boot_test, LOG_LEVEL_DBG);
+
+#define USER_STACKSIZE	2048
+
+static struct k_thread user_thread;
+static K_THREAD_STACK_DEFINE(user_stack, USER_STACKSIZE);
+K_SEM_DEFINE(user_sem, 0, 1);
+
+static void user_function(void *p1, void *p2, void *p3)
+{
+	__ASSERT(k_is_user_context(), "isn't user");
+	LOG_INF("SOF thread %s (%s)",
+	       k_is_user_context() ? "UserSpace!" : "privileged mode.",
+	       CONFIG_BOARD_TARGET);
+}
+
+static void user_sem_function(void *p1, void *p2, void *p3)
+{
+	__ASSERT(k_is_user_context(), "isn't user");
+	LOG_INF("SOF thread %s (%s)",
+	       k_is_user_context() ? "UserSpace!" : "privileged mode.",
+	       CONFIG_BOARD_TARGET);
+	k_sem_give(&user_sem);
+}
+
+static void test_user_thread(void)
+{
+	k_thread_create(&user_thread, user_stack, USER_STACKSIZE,
+			user_function, NULL, NULL, NULL,
+			-1, K_USER, K_MSEC(0));
+	k_thread_join(&user_thread, K_FOREVER);
+}
+
+static void test_user_thread_with_sem(void)
+{
+	/* Start in 10ms to have time to grant the thread access to the semaphore */
+	k_thread_create(&user_thread, user_stack, USER_STACKSIZE,
+			user_sem_function, NULL, NULL, NULL,
+			-1, K_USER, K_MSEC(10));
+	k_thread_access_grant(&user_thread, &user_sem);
+	k_sem_take(&user_sem, K_FOREVER);
+	k_thread_join(&user_thread, K_FOREVER);
+}
+
+ZTEST(sof_boot, user_space)
+{
+	test_user_thread();
+	test_user_thread_with_sem();
+
+	ztest_test_pass();
+}