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[ADL][RPL] Initialize TPM and Measured boot with btg profile 0 

TPM is intialized by ACM with profiles 3 & 5.
This patch enables the TPM in bootloader when boot guard
is not enabled. HAVE_MEASURED_BOOT in platform
board config controls the TPM in SBL.

Signed-off-by: Subash Lakkimsetti <subash.lakkimsetti@intel.com>
This commit is contained in:
Lakkimsetti, Subash 2022-08-22 13:14:36 -07:00 committed by Guo Dong
parent c3e42632ba
commit 13f05b3e89
1 changed files with 21 additions and 14 deletions
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35
Platform/AlderlakeBoardPkg/Library/Stage1BBoardInitLib/Stage1BBoardInitLib.c
View File

@ -338,7 +338,8 @@ PlatformFeaturesInit (
HeciBaseAddress = MeGetHeciMmPciAddress (0, 0);
GetBootGuardInfo (HeciBaseAddress, &PlatformData->BtGuardInfo);
DEBUG ((DEBUG_INFO, "GetPlatformDataPtr is copied 0x%08X \n", PlatformData));
if (!PlatformData->BtGuardInfo.MeasuredBoot) {
if ((PlatformData->BtGuardInfo.MeasuredBoot) && (!PlatformData->BtGuardInfo.BypassTpmInit)) {
// Disable the measured boot when TPM init is not succesful by ACM
LdrFeatures &= ~FEATURE_MEASURED_BOOT;
}
if (!PlatformData->BtGuardInfo.VerifiedBoot) {
@ -365,26 +366,34 @@ TpmInitialize (
BootMode = GetBootMode();
PlatformData = (PLATFORM_DATA *)GetPlatformDataPtr ();
if((PlatformData != NULL) && PlatformData->BtGuardInfo.MeasuredBoot &&
(!PlatformData->BtGuardInfo.DisconnectAllTpms) &&
((PlatformData->BtGuardInfo.TpmType == dTpm20) || (PlatformData->BtGuardInfo.TpmType == Ptt))){
// As per PC Client spec, SRTM should perform a host platform reset
if (PlatformData->BtGuardInfo.TpmStartupFailureOnS3) {
ResetSystem(EfiResetCold);
CpuDeadLoop ();
if ((PlatformData != NULL) && MEASURED_BOOT_ENABLED() &&
(!PlatformData->BtGuardInfo.DisconnectAllTpms)) {
if ((PlatformData->BtGuardInfo.MeasuredBoot) &&
((PlatformData->BtGuardInfo.TpmType == dTpm20) || (PlatformData->BtGuardInfo.TpmType == Ptt))) {
// As per PC Client spec, SRTM should perform a host platform reset
if (PlatformData->BtGuardInfo.TpmStartupFailureOnS3) {
ResetSystem(EfiResetCold);
CpuDeadLoop ();
}
// TPM is initialized in by ACM.
Status = TpmInit(PlatformData->BtGuardInfo.BypassTpmInit, BootMode);
} else {
// Initialize TPM if it has not already been initialized by BootGuard component (i.e. ACM)
Status = TpmInit(FALSE, BootMode);
}
// Initialize TPM if it has not already been initialized by BootGuard component (i.e. ACM)
Status = TpmInit(PlatformData->BtGuardInfo.BypassTpmInit, BootMode);
if (EFI_ERROR (Status)) {
CpuHalt ("Tpm Initialization failed !!\n");
} else {
if (BootMode != BOOT_ON_S3_RESUME) {
// Create and add BootGuard Event logs in TCG Event log
CreateTpmEventLog (PlatformData->BtGuardInfo.TpmType);
}
}
}
} else {
DisableTpm();
Features = GetFeatureCfg ();
@ -569,9 +578,7 @@ DEBUG_CODE_END();
case PreTempRamExit:
break;
case PostTempRamExit:
if (MEASURED_BOOT_ENABLED()) {
TpmInitialize();
}
TpmInitialize();
break;
default:
break;