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/*
* This file is part of the coreboot project.
*
* Copyright 2017 Google Inc.
*
* 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.
*/
#include <bootstate.h>
#include <console/console.h>
#include <security/tpm/tss.h>
#include <vb2_api.h>
static void disable_platform_hierarchy(void *unused)
{
int ret;
if (!IS_ENABLED(CONFIG_TPM2))
return;
if (!IS_ENABLED(CONFIG_RESUME_PATH_SAME_AS_BOOT))
return;
ret = tlcl_lib_init();
if (ret != VB2_SUCCESS) {
printk(BIOS_ERR, "tlcl_lib_init() failed: %x\n", ret);
return;
}
ret = tlcl_disable_platform_hierarchy();
if (ret != TPM_SUCCESS)
printk(BIOS_ERR, "Platform hierarchy disablement failed: %x\n",
ret);
}
BOOT_STATE_INIT_ENTRY(BS_OS_RESUME, BS_ON_ENTRY, disable_platform_hierarchy,
NULL);
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