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/*
* Copyright (c) 2017-2018 NVIDIA Corporation. All rights reserved.
*
* 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; either version 2 of the License, or
* (at your option) any later version.
*
* 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.
*/
#include <linux/err.h>
#include <linux/trusty/trusty.h>
#include <linux/trusty/trusty_ipc.h>
#include <linux/ote_protocol.h>
#define OTF_PORT_NAME "com.nvidia.tos.74629d40-1378-4d17-94d0e0af5d861d88"
#define OTF_REPROGRAM_KEYS 5
void trusty_restore_keyslots(void)
{
void *opaque_channel_context = NULL;
int ret = 0;
/* Return if Trusty Device is not enabled */
if (!is_trusty_dev_enabled())
return;
ret = te_open_trusted_session(OTF_PORT_NAME, &opaque_channel_context);
/* Return if this Trusty port or TA is not supported without pr_err */
if (ret == -EOPNOTSUPP)
return;
else if (ret) {
pr_err("%s:ERROR(%d): Failed to open trusted session\n",
__func__, ret);
return;
}
ret = te_launch_trusted_oper(NULL, 0U, OTF_REPROGRAM_KEYS,
opaque_channel_context);
if (ret) {
pr_err("%s:ERROR(%d): Failed to launch operation\n",
__func__, ret);
/* Fall Through */
}
te_close_trusted_session(opaque_channel_context);
}
EXPORT_SYMBOL(trusty_restore_keyslots);
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