diff options
Diffstat (limited to 'drivers/char/tpm/tpm.c')
| -rw-r--r-- | drivers/char/tpm/tpm.c | 30 |
1 files changed, 23 insertions, 7 deletions
diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c index b6c4a32..9bd4668 100644 --- a/drivers/char/tpm/tpm.c +++ b/drivers/char/tpm/tpm.c @@ -611,15 +611,31 @@ duration: } EXPORT_SYMBOL_GPL(tpm_get_timeouts); -void tpm_continue_selftest(struct tpm_chip *chip) +#define TPM_ORD_CONTINUE_SELFTEST 83 +#define CONTINUE_SELFTEST_RESULT_SIZE 10 + +static struct tpm_input_header continue_selftest_header = { + .tag = TPM_TAG_RQU_COMMAND, + .length = cpu_to_be32(10), + .ordinal = cpu_to_be32(TPM_ORD_CONTINUE_SELFTEST), +}; + +/** + * tpm_continue_selftest -- run TPM's selftest + * @chip: TPM chip to use + * + * Returns 0 on success, < 0 in case of fatal error or a value > 0 representing + * a TPM error code. + */ +int tpm_continue_selftest(struct tpm_chip *chip) { - u8 data[] = { - 0, 193, /* TPM_TAG_RQU_COMMAND */ - 0, 0, 0, 10, /* length */ - 0, 0, 0, 83, /* TPM_ORD_ContinueSelfTest */ - }; + int rc; + struct tpm_cmd_t cmd; - tpm_transmit(chip, data, sizeof(data)); + cmd.header.in = continue_selftest_header; + rc = transmit_cmd(chip, &cmd, CONTINUE_SELFTEST_RESULT_SIZE, + "continue selftest"); + return rc; } EXPORT_SYMBOL_GPL(tpm_continue_selftest); |
