diff options
Diffstat (limited to 'src/drivers')
| -rw-r--r-- | src/drivers/intel/fsp2_0/Kconfig | 11 | ||||
| -rw-r--r-- | src/drivers/intel/fsp2_0/memory_init.c | 13 |
2 files changed, 15 insertions, 9 deletions
diff --git a/src/drivers/intel/fsp2_0/Kconfig b/src/drivers/intel/fsp2_0/Kconfig index 3951e9a959..2b98542057 100644 --- a/src/drivers/intel/fsp2_0/Kconfig +++ b/src/drivers/intel/fsp2_0/Kconfig @@ -159,10 +159,19 @@ config DISPLAY_FSP_VERSION_INFO config FSP2_0_USES_TPM_MRC_HASH bool depends on TPM1 || TPM2 - depends on VBOOT + depends on VBOOT && VBOOT_STARTS_IN_BOOTBLOCK default y if HAS_RECOVERY_MRC_CACHE default n select VBOOT_HAS_REC_HASH_SPACE + help + Store hash of trained recovery MRC cache in NVRAM space in TPM. + Use the hash to validate recovery MRC cache before using it. + This hash needs to be updated every time recovery mode training + is recomputed, or if the hash does not match recovery MRC cache. + Selecting this option requires that TPM already be setup by this + point in time. Thus it is only compatible when the option + VBOOT_STARTS_IN_BOOTBLOCK is selected, which causes verstage and + TPM setup to occur prior to memory initialization. config FSP_PLATFORM_MEMORY_SETTINGS_VERSIONS bool diff --git a/src/drivers/intel/fsp2_0/memory_init.c b/src/drivers/intel/fsp2_0/memory_init.c index 3dafcf8ad9..f7cf0dd42b 100644 --- a/src/drivers/intel/fsp2_0/memory_init.c +++ b/src/drivers/intel/fsp2_0/memory_init.c @@ -33,6 +33,11 @@ #include <vb2_api.h> #include <fsp/memory_init.h> +/* TPM MRC hash functionality depends on vboot starting before memory init. */ +_Static_assert(!CONFIG(FSP2_0_USES_TPM_MRC_HASH) || + CONFIG(VBOOT_STARTS_IN_BOOTBLOCK), + "for TPM MRC hash functionality, vboot must start in bootblock"); + static void save_memory_training_data(bool s3wake, uint32_t fsp_version) { size_t mrc_data_size; @@ -92,14 +97,6 @@ static void do_fsp_post_memory_init(bool s3wake, uint32_t fsp_version) /* Create romstage handof information */ romstage_handoff_init(s3wake); - - /* - * Initialize the TPM, unless the TPM was already initialized - * in verstage and used to verify romstage. - */ - if ((CONFIG(TPM1) || CONFIG(TPM2)) && - !CONFIG(VBOOT_STARTS_IN_BOOTBLOCK)) - tpm_setup(s3wake); } static void fsp_fill_mrc_cache(FSPM_ARCH_UPD *arch_upd, uint32_t fsp_version) |