[PATCH v3 4/8] sandbox: add tests for UCLASS_SM

[Alexey Romanov]

This patchs adds simple tests for Secure Monitor uclass.

Signed-off-by: Alexey Romanov <avromanov at salutedevices.com>
Reviewed-by: Simon Glass <sjg at chromium.org>
---
 test/dm/Makefile |  1 +
 test/dm/sm.c     | 65 ++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 66 insertions(+)
 create mode 100644 test/dm/sm.c

diff --git a/test/dm/Makefile b/test/dm/Makefile
index 7a79b6e1a2..30550a62ad 100644
--- a/test/dm/Makefile
+++ b/test/dm/Makefile
@@ -107,6 +107,7 @@ obj-$(CONFIG_DM_SPI) += spi.o
 obj-$(CONFIG_SPMI) += spmi.o
 obj-y += syscon.o
 obj-$(CONFIG_RESET_SYSCON) += syscon-reset.o
+obj-$(CONFIG_SM) += sm.o
 obj-$(CONFIG_SYSINFO) += sysinfo.o
 obj-$(CONFIG_SYSINFO_GPIO) += sysinfo-gpio.o
 obj-$(CONFIG_UT_DM) += tag.o
diff --git a/test/dm/sm.c b/test/dm/sm.c
new file mode 100644
index 0000000000..7ebb0c9c85
--- /dev/null
+++ b/test/dm/sm.c
@@ -0,0 +1,65 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2023 SberDevices, Inc.
+ *
+ * Author: Alexey Romanov <avromanov at salutedevices.com>
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <sm.h>
+#include <sandbox-sm.h>
+#include <asm/ptrace.h>
+#include <dm/device-internal.h>
+#include <dm/test.h>
+#include <test/ut.h>
+#include <linux/sizes.h>
+
+static int dm_test_sm(struct unit_test_state *uts)
+{
+	struct udevice *dev;
+	struct pt_regs regs;
+	char buffer[128] = { 0 };
+	char test_string[] = "secure-monitor";
+	int ret, val;
+
+	ut_assertok(uclass_get_device_by_name(UCLASS_SM,
+		"secure-monitor", &dev));
+
+	ret = sm_call(dev, SANDBOX_SMC_CMD_COUNT, NULL, &regs);
+	ut_asserteq(ret, -EINVAL);
+
+	ret = sm_call(dev, SANDBOX_SMC_CMD_COMMON, &val, &regs);
+	ut_asserteq(ret, 0);
+	ut_asserteq(val, 0);
+
+	ret = sm_call_write(dev, buffer, sizeof(buffer),
+		SANDBOX_SMC_CMD_COUNT, &regs);
+	ut_asserteq(ret, -EINVAL);
+
+	ret = sm_call_write(dev, buffer, SZ_4K + 1,
+		SANDBOX_SMC_CMD_WRITE_MEM, &regs);
+	ut_asserteq(ret, -EINVAL);
+
+	ret = sm_call_write(dev, buffer, sizeof(buffer),
+		SANDBOX_SMC_CMD_COUNT, &regs);
+	ut_asserteq(ret, -EINVAL);
+
+	ret = sm_call_write(dev, buffer, SZ_4K + 1,
+		SANDBOX_SMC_CMD_READ_MEM, &regs);
+	ut_asserteq(ret, -EINVAL);
+
+	ret = sm_call_write(dev, test_string, sizeof(test_string),
+		SANDBOX_SMC_CMD_WRITE_MEM, &regs);
+	ut_asserteq(ret, sizeof(test_string));
+
+	ret = sm_call_read(dev, buffer, sizeof(buffer),
+		SANDBOX_SMC_CMD_READ_MEM, &regs);
+	ut_asserteq(ret, sizeof(buffer));
+
+	ut_asserteq_str(buffer, test_string);
+
+	return 0;
+}
+
+DM_TEST(dm_test_sm, UT_TESTF_SCAN_FDT);
-- 
2.25.1