[pentest] Add Ibex FI & SCA tests

This commit adds the following SCA and FI penetration tests:
- ibex.fi.address_translation
- ibex.fi.address_translation_config
- ibex.fi.char.csr_write
- ibex.fi.char.csr_read
- ibex.sca.key_sideloading

The host code is located in lowRISC/ot-sca#350

Signed-off-by: Pascal Nasahl <[email protected]>

sw/device/tests/crypto/cryptotest/firmware/BUILD

@@ -168,12 +168,13 @@ cc_library(
 
 cc_library(
     name = "ibex_fi",
-    srcs = ["ibex_fi.c"],
-    hdrs = [
-        "ibex_fi.h",
-        "status.h",
+    srcs = [
+        "ibex_fi.S",
+        "ibex_fi.c",
     ],
+    hdrs = ["ibex_fi.h"],
     deps = [
+        "//sw/device/lib/base:csr",
         "//sw/device/lib/base:memory",
         "//sw/device/lib/base:status",
         "//sw/device/lib/dif:flash_ctrl",
@@ -191,14 +192,14 @@ cc_library(
 cc_library(
     name = "ibex_sca",
     srcs = ["ibex_sca.c"],
-    hdrs = [
-        "ibex_sca.h",
-        "status.h",
-    ],
+    hdrs = ["ibex_sca.h"],
     deps = [
         "//sw/device/lib/base:memory",
         "//sw/device/lib/base:status",
+        "//sw/device/lib/dif:keymgr",
+        "//sw/device/lib/dif:kmac",
         "//sw/device/lib/runtime:log",
+        "//sw/device/lib/testing:keymgr_testutils",
         "//sw/device/lib/testing/test_framework:ujson_ottf",
         "//sw/device/lib/ujson",
         "//sw/device/sca/lib:sca",

sw/device/tests/crypto/cryptotest/firmware/ibex_fi.S

@@ -0,0 +1,234 @@
+// Copyright lowRISC contributors.
+// Licensed under the Apache License, Version 2.0, see LICENSE for details.
+// SPDX-License-Identifier: Apache-2.0
+
+/**
+ * Increments a value 100 times by 1.
+ *
+ * As this function is targeted by fault injection, the code is unrolled.
+ *
+ * @param a0 initial value which gets incremented.
+ * @return Initial value incremeted 100 times by 1.
+ */
+  .globl increment_100x1
+  .type increment_100x1, @function
+  .balign 256
+increment_100x1:
+  // a0: init value
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  addi a0, a0, 1
+  ret
+
+
+/**
+ * Increments a value 100 times by 10.
+ *
+ * As this function is targeted by fault injection, the code is unrolled.
+ *
+ * @param a0 initial value which gets incremented.
+ * @return Initial value incremeted 100 times by 10.
+ */
+  .globl increment_100x10
+  .type increment_100x10, @function
+  .balign 256
+increment_100x10:
+  // a0: init value
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  addi a0, a0, 10
+  ret