1 /*
2 * Copyright (c) 2020 Intel Corporation
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6
7 #include <zephyr/kernel.h>
8 #include <zephyr/ztest.h>
9
10 #include <zephyr/drivers/virtualization/ivshmem.h>
11
ZTEST(ivshmem,test_ivshmem_plain)12 ZTEST(ivshmem, test_ivshmem_plain)
13 {
14 const struct device *ivshmem;
15 uintptr_t mem;
16 size_t size;
17 uint32_t id;
18 uint32_t *area_to_rw;
19 uint16_t vectors;
20 int ret;
21
22 ivshmem = DEVICE_DT_GET_ONE(qemu_ivshmem);
23 zassert_true(device_is_ready(ivshmem), "ivshmem device is not ready");
24
25 size = ivshmem_get_mem(ivshmem, &mem);
26 zassert_not_equal(size, 0, "Size cannot not be 0");
27 zassert_not_null((void *)mem, "Shared memory cannot be null");
28
29 id = ivshmem_get_id(ivshmem);
30 zassert_equal(id, 0, "ID should be 0 on ivshmem-plain");
31
32 area_to_rw = (uint32_t *)mem;
33
34 *area_to_rw = 8108; /* some data */
35 zassert_equal(*area_to_rw, 8108,
36 "Could not r/w to the shared memory");
37
38 /* Quickly verifying that non-plain features return proper code */
39 vectors = ivshmem_get_vectors(ivshmem);
40 zassert_equal(vectors, 0, "ivshmem-plain cannot have vectors");
41
42 ret = z_impl_ivshmem_int_peer(ivshmem, 0, 0);
43 zassert_equal(ret, -ENOSYS,
44 "interrupting peers should not be supported");
45
46 ret = ivshmem_register_handler(ivshmem, NULL, 0);
47 zassert_equal(ret, -ENOSYS,
48 "registering handlers should not be supported");
49 }
50
test_is_usermode(void)51 static void test_is_usermode(void)
52 {
53 zassert_true(k_is_user_context(), "thread left in kernel mode");
54 }
55
ZTEST(ivshmem,test_quit_kernel)56 ZTEST(ivshmem, test_quit_kernel)
57 {
58 #ifdef CONFIG_USERSPACE
59 k_thread_user_mode_enter((k_thread_entry_t)test_is_usermode,
60 NULL, NULL, NULL);
61 #else
62 ztest_test_skip();
63 #endif
64 }
65
66 ZTEST_SUITE(ivshmem, NULL, NULL, NULL, NULL, NULL);
67
