diff options
| author | Christian Walter <christian.walter@9elements.com> | 2020-01-28 19:54:33 +0100 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2020-02-04 16:16:20 +0000 |
| commit | c9ac0bcb9827ab2bef5fd7548eb13302cfd9c57d (patch) | |
| tree | 969e2d5887a573df661edfd09a3a86b275682575 /src/security/tpm/tss/tcg-2.0/tss.c | |
| parent | e65f500a0b90ccbf1a172427b7a61a047571ff02 (diff) | |
security/tpm/tss: Add ClearControl Function
Add ClearControl Function which is needed for a follow-up patch.
Change-Id: Ia19185528fd821e420b0bdb424760c93b79523a4
Signed-off-by: Christian Walter <christian.walter@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38617
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
Diffstat (limited to 'src/security/tpm/tss/tcg-2.0/tss.c')
| -rw-r--r-- | src/security/tpm/tss/tcg-2.0/tss.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/src/security/tpm/tss/tcg-2.0/tss.c b/src/security/tpm/tss/tcg-2.0/tss.c index 6bc30966ff..49a6cea083 100644 --- a/src/security/tpm/tss/tcg-2.0/tss.c +++ b/src/security/tpm/tss/tcg-2.0/tss.c @@ -170,6 +170,23 @@ uint32_t tlcl_force_clear(void) return TPM_SUCCESS; } +uint32_t tlcl_clear_control(bool disable) +{ + struct tpm2_response *response; + struct tpm2_clear_control_cmd cc = { + .disable = 0, + }; + + response = tpm_process_command(TPM2_ClearControl, &cc); + printk(BIOS_INFO, "%s: response is %x\n", + __func__, response ? response->hdr.tpm_code : -1); + + if (!response || response->hdr.tpm_code) + return TPM_E_IOERROR; + + return TPM_SUCCESS; +} + static uint8_t tlcl_init_done; /* This function is called directly by vboot, uses vboot return types. */ |