diff options
Diffstat (limited to 'src/security/tpm/tss/vendor/cr50/cr50.c')
-rw-r--r-- | src/security/tpm/tss/vendor/cr50/cr50.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/src/security/tpm/tss/vendor/cr50/cr50.c b/src/security/tpm/tss/vendor/cr50/cr50.c index 90f796379c..450ad97fe5 100644 --- a/src/security/tpm/tss/vendor/cr50/cr50.c +++ b/src/security/tpm/tss/vendor/cr50/cr50.c @@ -52,3 +52,19 @@ uint32_t tlcl_cr50_enable_update(uint16_t timeout_ms, *num_restored_headers = response->vcr.num_restored_headers; return TPM_SUCCESS; } + +uint32_t tlcl_cr50_get_recovery_button(uint8_t *recovery_button_state) +{ + struct tpm2_response *response; + uint16_t sub_command = TPM2_CR50_SUB_CMD_GET_REC_BTN; + + printk(BIOS_INFO, "Checking cr50 for recovery request\n"); + + response = tpm_process_command(TPM2_CR50_VENDOR_COMMAND, &sub_command); + + if (!response || response->hdr.tpm_code) + return TPM_E_INTERNAL_INCONSISTENCY; + + *recovery_button_state = response->vcr.recovery_button_state; + return TPM_SUCCESS; +} |