[sw, tests] Adding test to verify ROM interface to KMAC
When the system has booted checks that the KMAC block has received the request to hash the contents of the ROM and returned the digests. These are compared against the expected digests stored in the ROM. They are accessed by reading the ROM_CTRL expected and computed digest registers.
Signed-off-by: Dave Williams <dave.williams@ensilica.com>
diff --git a/hw/top_earlgrey/data/chip_testplan.hjson b/hw/top_earlgrey/data/chip_testplan.hjson
index ee8ce36..7f4140f 100644
--- a/hw/top_earlgrey/data/chip_testplan.hjson
+++ b/hw/top_earlgrey/data/chip_testplan.hjson
@@ -1687,7 +1687,7 @@
X-ref'ed with ROM_CTRL test/env.
'''
milestone: V2
- tests: []
+ tests: ["chip_sw_kmac_app_rom_test"]
}
{
name: chip_sw_kmac_entropy
diff --git a/hw/top_earlgrey/dv/chip_sim_cfg.hjson b/hw/top_earlgrey/dv/chip_sim_cfg.hjson
index b60163b..01e130a 100644
--- a/hw/top_earlgrey/dv/chip_sim_cfg.hjson
+++ b/hw/top_earlgrey/dv/chip_sim_cfg.hjson
@@ -306,6 +306,12 @@
sw_images: ["sw/device/tests/kmac_mode_kmac_test:1"]
en_run_modes: ["sw_test_mode"]
}
+ {
+ name: chip_sw_kmac_app_rom_test
+ uvm_test_seq: chip_sw_base_vseq
+ sw_images: ["sw/device/tests/kmac_app_rom_test:1"]
+ en_run_modes: ["sw_test_mode"]
+ }
{
name: chip_sw_coremark
diff --git a/sw/device/tests/kmac_app_rom_test.c b/sw/device/tests/kmac_app_rom_test.c
new file mode 100644
index 0000000..47355a5
--- /dev/null
+++ b/sw/device/tests/kmac_app_rom_test.c
@@ -0,0 +1,34 @@
+// Copyright lowRISC contributors.
+// Licensed under the Apache License, Version 2.0, see LICENSE for details.
+// SPDX-License-Identifier: Apache-2.0
+
+#include "sw/device/lib/base/mmio.h"
+#include "sw/device/lib/dif/dif_rom_ctrl.h"
+#include "sw/device/lib/runtime/log.h"
+#include "sw/device/lib/testing/check.h"
+#include "sw/device/lib/testing/test_framework/ottf.h"
+
+#include "hw/top_earlgrey/sw/autogen/top_earlgrey.h"
+
+static dif_rom_ctrl_t rom_ctrl;
+
+const test_config_t kTestConfig;
+
+bool test_main(void) {
+ dif_rom_ctrl_digest_t computed_digest;
+ dif_rom_ctrl_digest_t expected_digest;
+
+ // initialize rom_ctrl
+ mmio_region_t rom_ctrl_reg =
+ mmio_region_from_addr(TOP_EARLGREY_ROM_CTRL_REGS_BASE_ADDR);
+ CHECK_DIF_OK(dif_rom_ctrl_init(rom_ctrl_reg, &rom_ctrl));
+
+ // get computed and expected digests and check that they match
+ CHECK_DIF_OK(dif_rom_ctrl_get_digest(&rom_ctrl, &computed_digest));
+ CHECK_DIF_OK(dif_rom_ctrl_get_expected_digest(&rom_ctrl, &expected_digest));
+ CHECK_BUFFER(computed_digest.digest, expected_digest.digest,
+ ROM_CTRL_DIGEST_MULTIREG_COUNT,
+ "Mismatch between computed and expected digest.");
+
+ return true;
+}
diff --git a/sw/device/tests/meson.build b/sw/device/tests/meson.build
index 422ea49..27dada5 100644
--- a/sw/device/tests/meson.build
+++ b/sw/device/tests/meson.build
@@ -495,6 +495,25 @@
}
}
+kmac_app_rom_test_lib = declare_dependency(
+ link_with: static_library(
+ 'kmac_app_rom_test_lib',
+ sources: [
+ hw_ip_rom_ctrl_reg_h,
+ 'kmac_app_rom_test.c',
+ ],
+ dependencies: [
+ sw_lib_dif_rom_ctrl,
+ sw_lib_runtime_log,
+ sw_lib_mmio,
+ ],
+ ),
+)
+sw_tests += {
+ 'kmac_app_rom_test': {
+ 'library': kmac_app_rom_test_lib,
+ }
+}
# Lifecycle Controller Tests
lc_ctrl_otp_hw_cfg_test_lib = declare_dependency(
