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security/tpm: Fix TCPA log feature

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Until now the TCPA log wasn't working correctly.

* Refactor TCPA log code.
* Add TCPA log dump fucntion.
* Make TCPA log available in bootblock.
* Fix TCPA log formatting.
* Add x86 and Cavium memory for early log.

Change-Id: Ic93133531b84318f48940d34bded48cbae739c44
Signed-off-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/29563
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
This commit is contained in:
Philipp Deppenwiese
2018-11-10 00:35:02 +01:00
parent 7a732b4781
commit c9b7d1fb57
20 changed files with 376 additions and 92 deletions
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13
util/cbmem/cbmem.c
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@ -690,8 +690,6 @@ static void dump_tcpa_log(void)
const struct tcpa_table *tclt_p;
size_t size;
struct mapping tcpa_mapping;
char log_string[TCPA_LOG_STRING_LENGTH];
char hash[TCPA_FORMAT_HASH_LENGTH];
if (tcpa_log.tag != LB_TAG_TCPA_LOG) {
fprintf(stderr, "No tcpa log found in coreboot table.\n");
@ -716,13 +714,12 @@ static void dump_tcpa_log(void)
for (i = 0; i < tclt_p->num_entries; i++) {
const struct tcpa_entry *tce = &tclt_p->entries[i];
memset(log_string, 0, TCPA_LOG_STRING_LENGTH);
for (j = 0; j < tce->digest_length; j++)
sprintf((char *)&(hash[j * 2]), "%02x", tce->digest[j]);
printf(" PCR-%u ", tce->pcr);
snprintf(log_string, TCPA_LOG_STRING_LENGTH, "%u %s 00 [%s]\n",
tce->pcr, hash, tce->name);
printf("%s", log_string);
for (j = 0; j < tce->digest_length; j++)
printf("%02x", tce->digest[j]);
printf(" %s [%s]\n", tce->digest_type, tce->name);
}
unmap_memory(&tcpa_mapping);