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-rwxr-xr-xutil/mma/mma_get_result.sh81
1 files changed, 81 insertions, 0 deletions
diff --git a/util/mma/mma_get_result.sh b/util/mma/mma_get_result.sh
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+++ b/util/mma/mma_get_result.sh
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+#!/bin/bash
+
+#
+# This file is part of the coreboot project.
+#
+# Copyright (C) 2015 Intel Corporation.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; version 2 of the License.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc.
+#
+
+mma_results_op_bin="${1}"
+mma_results_op_bin_tmp="${mma_results_op_bin}".tmp
+mma_cbmem_id="0x4d4d4144"
+
+show_usage() {
+ printf "usage: $(basename "${0}") <output_results.bin>\n"
+ printf "pass path of a bin file where you want to save results.\n"
+}
+
+#
+# main entry point
+#
+
+main() {
+ if [ ! "${mma_results_op_bin}" ];then
+ show_usage
+ exit -1
+ fi
+
+ printf "Reading cbmem ...\n"
+ cbmem -r ${mma_cbmem_id} > "${mma_results_op_bin_tmp}" || \
+ {
+ printf "error in executing cbmem utility\n" ;
+ exit -1;
+ }
+
+ #format of o/p is :
+ # <mma_signature><mma_test_header+data>
+ #
+ # where,
+ # <mma_signature> is 32bit length string "MMAD"
+ #
+ # <mma_test_header+data> is the FULL HOB which coreboot
+ # receives from FSP
+ # <mma_test_header> is 22 bytes long at the start of the HOB.
+ # MMA data starts right after 26 bytes
+ # 26 bytes = (4 bytes of "MMAD"
+ # + 22 bytes of mma_test_header)
+ #
+
+ mma_signature=$(dd if="${mma_results_op_bin_tmp}" bs=1 count=4 )
+
+ if [[ ${mma_signature} != "MMAD" ]];then
+ printf "MMA signature mismatch" > "${mma_results_op_bin}"
+ rm -r "${mma_results_op_bin_tmp}"
+ cbmem -l >> "${mma_results_op_bin}"
+ printf "MMA signature mismatch\n"
+ exit -1
+ fi
+
+ dd if="${mma_results_op_bin_tmp}" of="${mma_results_op_bin}" bs=1 skip=26 || \
+ {
+ printf "error in generating "${mma_results_op_bin}"\n" ;
+ exit -1;
+ }
+ rm -r "${mma_results_op_bin_tmp}"
+ printf "MMA data saved to "${mma_results_op_bin}"\n"
+}
+
+main "$@"