test/dm/sm.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (c) 2023 SberDevices, Inc.
   4  *
   5  * Author: Alexey Romanov <[email protected]>
   6  */
   7
   8 #include <dm.h>
   9 #include <sm.h>
  10 #include <sandbox-sm.h>
  11 #include <asm/ptrace.h>
  12 #include <dm/device-internal.h>
  13 #include <dm/test.h>
  14 #include <test/ut.h>
  15 #include <linux/sizes.h>
  16
  17 static int dm_test_sm(struct unit_test_state *uts)
  18 {
  19         struct udevice *dev;
  20         struct pt_regs regs;
  21         char buffer[128] = { 0 };
  22         char test_string[] = "secure-monitor";
  23         int ret, val;
  24
  25         ut_assertok(uclass_get_device_by_name(UCLASS_SM,
  26                 "secure-monitor", &dev));
  27
  28         ret = sm_call(dev, SANDBOX_SMC_CMD_COUNT, NULL, &regs);
  29         ut_asserteq(ret, -EINVAL);
  30
  31         ret = sm_call(dev, SANDBOX_SMC_CMD_COMMON, &val, &regs);
  32         ut_asserteq(ret, 0);
  33         ut_asserteq(val, 0);
  34
  35         ret = sm_call_write(dev, buffer, sizeof(buffer),
  36                 SANDBOX_SMC_CMD_COUNT, &regs);
  37         ut_asserteq(ret, -EINVAL);
  38
  39         ret = sm_call_write(dev, buffer, SZ_4K + 1,
  40                 SANDBOX_SMC_CMD_WRITE_MEM, &regs);
  41         ut_asserteq(ret, -EINVAL);
  42
  43         ret = sm_call_write(dev, buffer, sizeof(buffer),
  44                 SANDBOX_SMC_CMD_COUNT, &regs);
  45         ut_asserteq(ret, -EINVAL);
  46
  47         ret = sm_call_write(dev, buffer, SZ_4K + 1,
  48                 SANDBOX_SMC_CMD_READ_MEM, &regs);
  49         ut_asserteq(ret, -EINVAL);
  50
  51         ret = sm_call_write(dev, test_string, sizeof(test_string),
  52                 SANDBOX_SMC_CMD_WRITE_MEM, &regs);
  53         ut_asserteq(ret, sizeof(test_string));
  54
  55         ret = sm_call_read(dev, buffer, sizeof(buffer),
  56                 SANDBOX_SMC_CMD_READ_MEM, &regs);
  57         ut_asserteq(ret, sizeof(buffer));
  58
  59         ut_asserteq_str(buffer, test_string);
  60
  61         return 0;
  62 }
  63 DM_TEST(dm_test_sm, UTF_SCAN_FDT);