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Add performance optimization for Tcg/TrEE. 

Add error check for Tcg/TrEE Pei/Dxe driver to avoid unnecessary hardware check for performance optimization.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: "Yao, Jiewen" <jiewen.yao@intel.com>
Reviewed-by: "Zeng, Star" <star.zeng@intel.com>


git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17004 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Yao, Jiewen 2015-03-04 01:15:08 +00:00 committed by jyao1
parent 4c9ed23eb6
commit 3dd05ac3e6
5 changed files with 38 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
SecurityPkg/SecurityPkg.dec
View File

@ -192,6 +192,7 @@
# [Error.gEfiSecurityPkgTokenSpaceGuid]
# 0x80000001 | Invalid value provided.
# 0x80000002 | Reserved bits must be set to zero.
# 0x80000003 | Incorrect progress or error code provided.
#
[PcdsFixedAtBuild, PcdsPatchableInModule]

9
SecurityPkg/Tcg/TcgDxe/TcgDxe.c
View File

@ -1355,6 +1355,11 @@ DriverEntry (
return EFI_UNSUPPORTED;
}
if (GetFirstGuidHob (&gTpmErrorHobGuid) != NULL) {
DEBUG ((EFI_D_ERROR, "TPM error!\n"));
return EFI_DEVICE_ERROR;
}
mTcgDxeData.TpmHandle = (TIS_TPM_HANDLE)(UINTN)TPM_BASE_ADDRESS;
Status = TisPcRequestUseTpm (mTcgDxeData.TpmHandle);
if (EFI_ERROR (Status)) {
@ -1362,10 +1367,6 @@ DriverEntry (
return Status;
}
if (GetFirstGuidHob (&gTpmErrorHobGuid) != NULL) {
mTcgDxeData.BsCap.TPMPresentFlag = FALSE;
}
Status = GetTpmStatus (&mTcgDxeData.BsCap.TPMDeactivatedFlag);
if (EFI_ERROR (Status)) {
DEBUG ((

13
SecurityPkg/Tcg/TcgPei/TcgPei.c
View File

@ -752,6 +752,11 @@ PeimEntryMA (
return EFI_UNSUPPORTED;
}
if (GetFirstGuidHob (&gTpmErrorHobGuid) != NULL) {
DEBUG ((EFI_D_ERROR, "TPM error!\n"));
return EFI_DEVICE_ERROR;
}
//
// Initialize TPM device
//
@ -808,6 +813,14 @@ PeimEntryMA (
}
Done:
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_ERROR, "TPM error! Build Hob\n"));
BuildGuidHob (&gTpmErrorHobGuid,0);
REPORT_STATUS_CODE (
EFI_ERROR_CODE | EFI_ERROR_MINOR,
(PcdGet32 (PcdStatusCodeSubClassTpmDevice) | EFI_P_EC_INTERFACE_ERROR)
);
}
//
// Always intall TpmInitializationDonePpi no matter success or fail.
// Other driver can know TPM initialization state by TpmInitializedPpi.

11
SecurityPkg/Tcg/TrEEDxe/TrEEDxe.c
View File

@ -1815,16 +1815,17 @@ DriverEntry (
return EFI_UNSUPPORTED;
}
if (GetFirstGuidHob (&gTpmErrorHobGuid) != NULL) {
DEBUG ((EFI_D_ERROR, "TPM2 error!\n"));
return EFI_DEVICE_ERROR;
}
Status = Tpm2RequestUseTpm ();
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_ERROR, "TPM not detected!\n"));
DEBUG ((EFI_D_ERROR, "TPM2 not detected!\n"));
return Status;
}
if (GetFirstGuidHob (&gTpmErrorHobGuid) != NULL) {
mTcgDxeData.BsCap.TrEEPresentFlag = FALSE;
}
//
// Fill information
//

13
SecurityPkg/Tcg/TrEEPei/TrEEPei.c
View File

@ -636,6 +636,11 @@ PeimEntryMA (
return EFI_UNSUPPORTED;
}
if (GetFirstGuidHob (&gTpmErrorHobGuid) != NULL) {
DEBUG ((EFI_D_ERROR, "TPM2 error!\n"));
return EFI_DEVICE_ERROR;
}
Status = PeiServicesGetBootMode (&BootMode);
ASSERT_EFI_ERROR (Status);
@ -701,6 +706,14 @@ PeimEntryMA (
}
Done:
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_ERROR, "TPM2 error! Build Hob\n"));
BuildGuidHob (&gTpmErrorHobGuid,0);
REPORT_STATUS_CODE (
EFI_ERROR_CODE | EFI_ERROR_MINOR,
(PcdGet32 (PcdStatusCodeSubClassTpmDevice) | EFI_P_EC_INTERFACE_ERROR)
);
}
//
// Always intall TpmInitializationDonePpi no matter success or fail.
// Other driver can know TPM initialization state by TpmInitializedPpi.