1 files changed, 68 insertions, 0 deletions
diff --git a/tests/tpm_lite/tpmtest_timing.c b/tests/tpm_lite/tpmtest_timing.c
new file mode 100644
index 00000000..677b533b
--- /dev/null
+++ b/tests/tpm_lite/tpmtest_timing.c
@@ -0,0 +1,68 @@
+/* Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+/* Timing test for various TPM operations.  This is mostly a sanity check to
+ * make sure the part doesn't have ridicolously bad timing on simple
+ * operations.
+ */
+
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <sys/time.h>
+#include <time.h>
+
+#include "tlcl.h"
+#include "tlcl_tests.h"
+#include "utility.h"
+
+/* Runs [op] and ensures it returns success and doesn't run longer than
+ * [time_limit] in milliseconds.
+ */
+#define TTPM_CHECK(op, time_limit) do {                                 \
+    struct timeval before, after;                                       \
+    int time;                                                           \
+    uint32_t __result;                                                  \
+    gettimeofday(&before, NULL);                                        \
+    __result = op;                                                      \
+    if (__result != TPM_SUCCESS) {                                      \
+      printf(#op ": error 0x%x\n", __result);                           \
+      errors++;                                                          \
+    }                                                                   \
+    gettimeofday(&after, NULL);                                         \
+    time = (int) ((after.tv_sec - before.tv_sec) * 1000 +               \
+                  (after.tv_usec - before.tv_usec) / 1000);             \
+    printf(#op ": %d ms\n", time);                                      \
+    if (time > time_limit) {                                            \
+      printf(#op " exceeded " #time_limit " ms\n");                     \
+      time_limit_exceeded = 1;                                          \
+    }                                                                   \
+  } while (0)
+
+int main(int argc, char** argv) {
+  uint32_t x;
+  uint8_t in[20], out[20];
+  int time_limit_exceeded = 0;
+  int errors = 0;
+
+  TlclLibInit();
+  TTPM_CHECK(0, 50);
+  TTPM_CHECK(TlclStartupIfNeeded(), 50);
+  TTPM_CHECK(TlclContinueSelfTest(), 100);
+  TTPM_CHECK(TlclSelfTestFull(), 1000);
+  TTPM_CHECK(TlclAssertPhysicalPresence(), 100);
+  TTPM_CHECK(TlclWrite(INDEX0, (uint8_t*) &x, sizeof(x)), 100);
+  TTPM_CHECK(TlclRead(INDEX0, (uint8_t*) &x, sizeof(x)), 100);
+  TTPM_CHECK(TlclExtend(0, in, out), 200);
+  TTPM_CHECK(TlclSetGlobalLock(), 50);
+  TTPM_CHECK(TlclLockPhysicalPresence(), 100);
+  if (time_limit_exceeded || errors > 0) {
+    printf("TEST FAILED\n");
+    exit(1);
+  } else {
+    printf("TEST SUCCEEDED\n");
+    return 0;
+  }
+}