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SecurityPkg: Add TPM PTP detection in Tpm12SubmitCommand.

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Previously, we only add PTP detection in Tpm12RequestUseTpm,
because RequestUseTpm does not check TPM command.
This patch also adds similar check in Tpm12SubmitCommand.
PTP device does not accept TPM12 command, so that it can
return error on PTP device, instead of wait till timeout.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: "Yao, Jiewen" <jiewen.yao@intel.com>
Reviewed-by: "Zhang, Chao B" <chao.b.zhang@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19755 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Yao, Jiewen 2016-01-27 12:15:59 +00:00 committed by jyao1
parent 1a4acc1136
commit e4780913e5
1 changed files with 58 additions and 41 deletions
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99
SecurityPkg/Library/Tpm12DeviceLibDTpm/Tpm12Tis.c
View File

@ -57,6 +57,44 @@ Tpm12TisPcPresenceCheck (
return (BOOLEAN)(RegRead != (UINT8)-1);
}
/**
Return PTP interface type.
@param[in] Register Pointer to PTP register.
@return PTP interface type.
**/
PTP_INTERFACE_TYPE
Tpm12GetPtpInterface (
IN VOID *Register
)
{
PTP_CRB_INTERFACE_IDENTIFIER InterfaceId;
PTP_FIFO_INTERFACE_CAPABILITY InterfaceCapability;
if (!Tpm12TisPcPresenceCheck (Register)) {
return PtpInterfaceMax;
}
//
// Check interface id
//
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_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;
}
/**
Check whether the value of a TPM chip register satisfies the input BIT setting.
@ -393,51 +431,30 @@ Tpm12SubmitCommand (
IN UINT8 *OutputParameterBlock
)
{
return Tpm12TisTpmCommand (
(TIS_PC_REGISTERS_PTR) (UINTN) PcdGet64 (PcdTpmBaseAddress),
InputParameterBlock,
InputParameterBlockSize,
OutputParameterBlock,
OutputParameterBlockSize
);
}
PTP_INTERFACE_TYPE PtpInterface;
/**
Return PTP interface type.
@param[in] Register Pointer to PTP register.
@return PTP interface type.
**/
PTP_INTERFACE_TYPE
Tpm12GetPtpInterface (
IN VOID *Register
)
{
PTP_CRB_INTERFACE_IDENTIFIER InterfaceId;
PTP_FIFO_INTERFACE_CAPABILITY InterfaceCapability;
if (!Tpm12TisPcPresenceCheck (Register)) {
return PtpInterfaceMax;
}
//
// Check interface id
// Special handle for TPM1.2 to check PTP too, because PTP/TIS share same register address.
//
InterfaceId.Uint32 = MmioRead32 ((UINTN)&((PTP_CRB_REGISTERS *)Register)->InterfaceId);
InterfaceCapability.Uint32 = MmioRead32 ((UINTN)&((PTP_FIFO_REGISTERS *)Register)->InterfaceCapability);
PtpInterface = Tpm12GetPtpInterface ((VOID *) (UINTN) PcdGet64 (PcdTpmBaseAddress));
switch (PtpInterface) {
case PtpInterfaceFifo:
case PtpInterfaceTis:
return Tpm12TisTpmCommand (
(TIS_PC_REGISTERS_PTR) (UINTN) PcdGet64 (PcdTpmBaseAddress),
InputParameterBlock,
InputParameterBlockSize,
OutputParameterBlock,
OutputParameterBlockSize
);
case PtpInterfaceCrb:
//
// No need to support CRB because it is only accept TPM2 command.
//
default:
return EFI_DEVICE_ERROR;
}
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;
}
/**