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Date: Sat, 9 Oct 2021 09:32:47 +0800
From: "Longpeng(Mike)" <longpeng2@...wei.com>
To: <andraprs@...zon.com>, <lexnv@...zon.com>, <alcioa@...zon.com>
CC: <arei.gonglei@...wei.com>, <gregkh@...uxfoundation.org>,
<kamal@...onical.com>, <pbonzini@...hat.com>,
<sgarzare@...hat.com>, <stefanha@...hat.com>,
<vkuznets@...hat.com>, <linux-kernel@...r.kernel.org>,
<ne-devel-upstream@...zon.com>, Longpeng <longpeng2@...wei.com>
Subject: [PATCH v3 3/4] nitro_enclaves: Add KUnit tests setup for the misc device functionality
From: Longpeng <longpeng2@...wei.com>
Add the initial setup for the KUnit tests that will target the Nitro
Enclaves misc device functionality.
Signed-off-by: Longpeng <longpeng2@...wei.com>
---
Changes v2 -> v3:
- update the commit title and commit message. [Andra]
- use "misc_dev"/"misc device"/"MISC_DEV" to be more specific. [Andra]
---
drivers/virt/nitro_enclaves/Kconfig | 9 +++++++++
drivers/virt/nitro_enclaves/ne_misc_dev.c | 27 ++++++++++++++++++++++++++
drivers/virt/nitro_enclaves/ne_misc_dev_test.c | 17 ++++++++++++++++
3 files changed, 53 insertions(+)
create mode 100644 drivers/virt/nitro_enclaves/ne_misc_dev_test.c
diff --git a/drivers/virt/nitro_enclaves/Kconfig b/drivers/virt/nitro_enclaves/Kconfig
index 8c9387a..90802b1 100644
--- a/drivers/virt/nitro_enclaves/Kconfig
+++ b/drivers/virt/nitro_enclaves/Kconfig
@@ -18,3 +18,12 @@ config NITRO_ENCLAVES
To compile this driver as a module, choose M here.
The module will be called nitro_enclaves.
+
+config NITRO_ENCLAVES_MISC_DEV_TEST
+ bool "Tests for the misc device functionality of the Nitro enclaves"
+ depends on NITRO_ENCLAVES && KUNIT=y
+ help
+ Enable KUnit tests for the misc device functionality of the Nitro
+ Enclaves. Select this option only if you will boot the kernel for
+ the purpose of running unit tests (e.g. under UML or qemu). If
+ unsure, say N.
diff --git a/drivers/virt/nitro_enclaves/ne_misc_dev.c b/drivers/virt/nitro_enclaves/ne_misc_dev.c
index a8fa56b..f895fc3 100644
--- a/drivers/virt/nitro_enclaves/ne_misc_dev.c
+++ b/drivers/virt/nitro_enclaves/ne_misc_dev.c
@@ -1756,8 +1756,33 @@ static long ne_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
return 0;
}
+#if defined(CONFIG_NITRO_ENCLAVES_MISC_DEV_TEST)
+#include "ne_misc_dev_test.c"
+
+static inline int ne_misc_dev_test_init(void)
+{
+ return __kunit_test_suites_init(ne_misc_dev_test_suites);
+}
+
+static inline void ne_misc_dev_test_exit(void)
+{
+ __kunit_test_suites_exit(ne_misc_dev_test_suites);
+}
+#else
+static inline int ne_misc_dev_test_init(void)
+{
+ return 0;
+}
+
+static inline void ne_misc_dev_test_exit(void)
+{
+}
+#endif
+
static int __init ne_init(void)
{
+ ne_misc_dev_test_init();
+
mutex_init(&ne_cpu_pool.mutex);
return pci_register_driver(&ne_pci_driver);
@@ -1768,6 +1793,8 @@ static void __exit ne_exit(void)
pci_unregister_driver(&ne_pci_driver);
ne_teardown_cpu_pool();
+
+ ne_misc_dev_test_exit();
}
module_init(ne_init);
diff --git a/drivers/virt/nitro_enclaves/ne_misc_dev_test.c b/drivers/virt/nitro_enclaves/ne_misc_dev_test.c
new file mode 100644
index 0000000..bcb755e
--- /dev/null
+++ b/drivers/virt/nitro_enclaves/ne_misc_dev_test.c
@@ -0,0 +1,17 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <kunit/test.h>
+
+static struct kunit_case ne_misc_dev_test_cases[] = {
+ {}
+};
+
+static struct kunit_suite ne_misc_dev_test_suite = {
+ .name = "ne_misc_dev_test",
+ .test_cases = ne_misc_dev_test_cases,
+};
+
+static struct kunit_suite *ne_misc_dev_test_suites[] = {
+ &ne_misc_dev_test_suite,
+ NULL
+};
--
1.8.3.1
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