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/* SPDX-License-Identifier: GPL-2.0-only */
#include <bootstate.h>
#include <console/console.h>
#include <security/tpm/tss.h>
#include <vb2_api.h>
static void disable_platform_hierarchy(void *unused)
{
tpm_result_t rc;
if (!CONFIG(TPM2))
return;
if (!CONFIG(RESUME_PATH_SAME_AS_BOOT))
return;
rc = tlcl_lib_init();
if (rc != TPM_SUCCESS) {
printk(BIOS_ERR, "tlcl_lib_init() failed: %#x\n", rc);
return;
}
/* In case both families are enabled, but TPM1 is in use. */
if (tlcl_get_family() != TPM_2)
return;
rc = tlcl2_disable_platform_hierarchy();
if (rc != TPM_SUCCESS)
printk(BIOS_ERR, "Platform hierarchy disablement failed: %#x\n",
rc);
}
BOOT_STATE_INIT_ENTRY(BS_OS_RESUME, BS_ON_ENTRY, disable_platform_hierarchy,
NULL);
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