diff options
Diffstat (limited to 'SecurityPkg')
| -rw-r--r-- | SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.c b/SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.c index b4974755b2..1c2d8ba389 100644 --- a/SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.c +++ b/SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.c @@ -50,18 +50,27 @@ GetPtpInterface ( InterfaceId.Uint32 = MmioRead32 ((UINTN)&((PTP_CRB_REGISTERS *)Register)->InterfaceId);
InterfaceCapability.Uint32 = MmioRead32 ((UINTN)&((PTP_FIFO_REGISTERS *)Register)->InterfaceCapability);
+ if (InterfaceId.Bits.InterfaceType == PTP_INTERFACE_IDENTIFIER_INTERFACE_TYPE_TIS) {
+ return PtpInterfaceTis;
+ }
+
if ((InterfaceId.Bits.InterfaceType == PTP_INTERFACE_IDENTIFIER_INTERFACE_TYPE_CRB) &&
(InterfaceId.Bits.InterfaceVersion == PTP_INTERFACE_IDENTIFIER_INTERFACE_VERSION_CRB) &&
(InterfaceId.Bits.CapCRB != 0)) {
return PtpInterfaceCrb;
}
+
if ((InterfaceId.Bits.InterfaceType == PTP_INTERFACE_IDENTIFIER_INTERFACE_TYPE_FIFO) &&
(InterfaceId.Bits.InterfaceVersion == PTP_INTERFACE_IDENTIFIER_INTERFACE_VERSION_FIFO) &&
(InterfaceId.Bits.CapFIFO != 0) &&
(InterfaceCapability.Bits.InterfaceVersion == INTERFACE_CAPABILITY_INTERFACE_VERSION_PTP)) {
return PtpInterfaceFifo;
}
- return PtpInterfaceTis;
+
+ //
+ // No Ptp interface available
+ //
+ return PtpInterfaceMax;
}
EFI_TPM2_ACPI_TABLE mTpm2AcpiTemplate = {
@@ -400,6 +409,7 @@ PublishTpm2 ( case PtpInterfaceTis:
break;
default:
+ DEBUG((EFI_D_ERROR, "TPM2 InterfaceType get error! %d\n", InterfaceType));
break;
}
|