diff options
Diffstat (limited to 'src/drivers')
-rw-r--r-- | src/drivers/intel/fsp1_1/romstage.c | 10 | ||||
-rw-r--r-- | src/drivers/tpm/Kconfig | 7 | ||||
-rw-r--r-- | src/drivers/tpm/Makefile.inc | 1 | ||||
-rw-r--r-- | src/drivers/tpm/tpm.c | 35 |
4 files changed, 43 insertions, 10 deletions
diff --git a/src/drivers/intel/fsp1_1/romstage.c b/src/drivers/intel/fsp1_1/romstage.c index 0320bf5724..51f9a75373 100644 --- a/src/drivers/intel/fsp1_1/romstage.c +++ b/src/drivers/intel/fsp1_1/romstage.c @@ -37,7 +37,6 @@ #include <stage_cache.h> #include <string.h> #include <timestamp.h> -#include <security/tpm/tspi.h> #include <vendorcode/google/chromeos/chromeos.h> asmlinkage void *romstage_main(FSP_INFO_HEADER *fih) @@ -167,15 +166,6 @@ void romstage_common(struct romstage_params *params) if (romstage_handoff_init( params->power_state->prev_sleep_state == ACPI_S3) < 0) hard_reset(); - - /* - * Initialize the TPM, unless the TPM was already initialized - * in verstage and used to verify romstage. - */ - if ((IS_ENABLED(CONFIG_TPM1) || IS_ENABLED(CONFIG_TPM2)) && - !IS_ENABLED(CONFIG_VBOOT_STARTS_IN_BOOTBLOCK)) - tpm_setup(params->power_state->prev_sleep_state == - ACPI_S3); } void after_cache_as_ram_stage(void) diff --git a/src/drivers/tpm/Kconfig b/src/drivers/tpm/Kconfig new file mode 100644 index 0000000000..8508210fc6 --- /dev/null +++ b/src/drivers/tpm/Kconfig @@ -0,0 +1,7 @@ +config TPM_INIT + bool + default y if TPM1 || TPM2 + depends on !VBOOT + help + This driver automatically initializes the TPM if vboot is not used. + The TPM driver init is done during the ramstage chip init phase. diff --git a/src/drivers/tpm/Makefile.inc b/src/drivers/tpm/Makefile.inc new file mode 100644 index 0000000000..4e80600ddf --- /dev/null +++ b/src/drivers/tpm/Makefile.inc @@ -0,0 +1 @@ +ramstage-$(CONFIG_TPM_INIT) += tpm.c diff --git a/src/drivers/tpm/tpm.c b/src/drivers/tpm/tpm.c new file mode 100644 index 0000000000..e4a81c3da4 --- /dev/null +++ b/src/drivers/tpm/tpm.c @@ -0,0 +1,35 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2018 Facebook 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 <types.h> +#include <stddef.h> +#include <bootstate.h> +#include <security/tpm/tspi.h> + +#if IS_ENABLED(CONFIG_ARCH_X86) +#include <arch/acpi.h> +#endif + +static void init_tpm_dev(void *unused) +{ +#if IS_ENABLED(CONFIG_ARCH_X86) + int s3resume = acpi_is_wakeup_s3(); + tpm_setup(s3resume); +#else + tpm_setup(false); +#endif +} + +BOOT_STATE_INIT_ENTRY(BS_DEV_INIT, BS_ON_ENTRY, init_tpm_dev, NULL); |