diff options
Diffstat (limited to 'src/security/intel/txt')
| -rw-r--r-- | src/security/intel/txt/ramstage.c | 30 |
1 files changed, 14 insertions, 16 deletions
diff --git a/src/security/intel/txt/ramstage.c b/src/security/intel/txt/ramstage.c index c33af893ac..cbc3a41bb7 100644 --- a/src/security/intel/txt/ramstage.c +++ b/src/security/intel/txt/ramstage.c @@ -89,23 +89,21 @@ static void check_secrets_txt(void *unused) if (status & ACMSTS_TXT_DISABLED) return; - /* Check for fatal ACM error and TXT reset */ - if (get_wake_error_status()) { - /* - * Check if secrets bit needs to be reset. Only platforms that support - * CONFIG(PLATFORM_HAS_DRAM_CLEAR) will be able to run this code. - * Assume all memory really was cleared. - * - * TXT will issue a platform reset to come up sober. - */ - if (intel_txt_memory_has_secrets()) { - printk(BIOS_INFO, "TEE-TXT: Wiping TEE...\n"); - intel_txt_run_bios_acm(ACMINPUT_CLEAR_SECRETS); + /* + * Check if secrets bit needs to be reset. Only platforms that support + * CONFIG(PLATFORM_HAS_DRAM_CLEAR) will be able to run this code. + * On some platforms FSP-M takes care of the DRAM clearing. + * Assume all memory really was cleared. + * + * TXT will issue a platform reset to come up sober. + */ + if (intel_txt_memory_has_secrets()) { + printk(BIOS_INFO, "TEE-TXT: Wiping TEE...\n"); + intel_txt_run_bios_acm(ACMINPUT_CLEAR_SECRETS); - /* Should never reach this point ... */ - intel_txt_log_acm_error(read32((void *)TXT_BIOSACM_ERRORCODE)); - die("Waiting for platform reset...\n"); - } + /* Should never reach this point ... */ + intel_txt_log_acm_error(read32((void *)TXT_BIOSACM_ERRORCODE)); + die("Waiting for platform reset...\n"); } } |