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shim/tpm: fix trigger failure caused by NULL arguments

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Certain AMI BIOS (Intel NUC5i3MYBE BIOS version 0037) may make the strict
check on the last 3 arguments passed to get_event_log() and don't expect
NULL pointers are passed. In order to work around this failure
(EFI_INVALID_PARAMETER), pass them even though we really don't use it.

Signed-off-by: Lans Zhang <jia.zhang@windriver.com>
This commit is contained in:
Lans Zhang 2016-11-16 15:28:08 +08:00 committed by Peter Jones
parent 1ee26db0db
commit 7bfcd70801
1 changed files with 6 additions and 2 deletions
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tpm.c
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@ -71,9 +71,13 @@ static BOOLEAN tpm2_present(efi_tpm2_protocol_t *tpm)
*/ */
static EFI_STATUS trigger_tcg2_final_events_table(efi_tpm2_protocol_t *tpm2) static EFI_STATUS trigger_tcg2_final_events_table(efi_tpm2_protocol_t *tpm2)
{ {
EFI_PHYSICAL_ADDRESS start;
EFI_PHYSICAL_ADDRESS end;
BOOLEAN truncated;
return uefi_call_wrapper(tpm2->get_event_log, 5, tpm2, return uefi_call_wrapper(tpm2->get_event_log, 5, tpm2,
EFI_TCG2_EVENT_LOG_FORMAT_TCG_2, NULL, EFI_TCG2_EVENT_LOG_FORMAT_TCG_2, &start,
NULL, NULL); &end, &truncated);
} }
EFI_STATUS tpm_log_event(EFI_PHYSICAL_ADDRESS buf, UINTN size, UINT8 pcr, EFI_STATUS tpm_log_event(EFI_PHYSICAL_ADDRESS buf, UINTN size, UINT8 pcr,