SecurityPkg: Add TPM PTP support in TCG2 SMM.

TPM2 hardware may support PTP FIFO/TIS interface
or PTP CRB interface. The original ACPI table only
handles PTP FIFO/TIS interface. This patch adds
PTP CRB interface support.
The current logic is that SMM driver will runtime
detect TPM device interface (CRB or FIFO/TIS) and
publish TPM2 table based on result.

It is compatible for old TPM2 FIFO/TIS device and
new TPM2 CRB device.

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@19741 6f19259b-4bc3-4df7-8a09-765794883524

SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.c

@@ -9,7 +9,7 @@
 
   PhysicalPresenceCallback() and MemoryClearCallback() will receive untrusted input and do some check.
 
-Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2015 - 2016, Intel Corporation. All rights reserved.<BR>
 This program and the accompanying materials 
 are licensed and made available under the terms and conditions of the BSD License 
 which accompanies this distribution.  The full text of the license may be found at 
@@ -22,6 +22,48 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 
 #include "Tcg2Smm.h"
 
+typedef enum {
+  PtpInterfaceTis,
+  PtpInterfaceFifo,
+  PtpInterfaceCrb,
+  PtpInterfaceMax,
+} PTP_INTERFACE_TYPE;
+
+/**
+  Return PTP interface type.
+
+  @param[in] Register                Pointer to PTP register.
+
+  @return PTP interface type.
+**/
+PTP_INTERFACE_TYPE
+GetPtpInterface (
+  IN VOID *Register
+  )
+{
+  PTP_CRB_INTERFACE_IDENTIFIER  InterfaceId;
+  PTP_FIFO_INTERFACE_CAPABILITY InterfaceCapability;
+
+  //
+  // 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;
+}
+
 EFI_TPM2_ACPI_TABLE  mTpm2AcpiTemplate = {
   {
     EFI_ACPI_5_0_TRUSTED_COMPUTING_PLATFORM_2_TABLE_SIGNATURE,
@@ -288,6 +330,8 @@ PublishTpm2 (
   EFI_ACPI_TABLE_PROTOCOL        *AcpiTable;
   UINTN                          TableKey;
   UINT64                         OemTableId;
+  EFI_TPM2_ACPI_CONTROL_AREA     *ControlArea;
+  PTP_INTERFACE_TYPE             InterfaceType;
 
   //
   // Measure to PCR[0] with event EV_POST_CODE ACPI DATA
@@ -301,6 +345,24 @@ PublishTpm2 (
     sizeof(mTpm2AcpiTemplate)
     );
 
+  InterfaceType = GetPtpInterface ((VOID *) (UINTN) PcdGet64 (PcdTpmBaseAddress));
+  switch (InterfaceType) {
+  case PtpInterfaceCrb:
+    mTpm2AcpiTemplate.StartMethod = EFI_TPM2_ACPI_TABLE_START_METHOD_COMMAND_RESPONSE_BUFFER_INTERFACE;
+    mTpm2AcpiTemplate.AddressOfControlArea = PcdGet64 (PcdTpmBaseAddress) + 0x40;
+    ControlArea = (EFI_TPM2_ACPI_CONTROL_AREA *)(UINTN)mTpm2AcpiTemplate.AddressOfControlArea;
+    ControlArea->CommandSize  = 0xF80;
+    ControlArea->ResponseSize = 0xF80;
+    ControlArea->Command      = PcdGet64 (PcdTpmBaseAddress) + 0x80;
+    ControlArea->Response     = PcdGet64 (PcdTpmBaseAddress) + 0x80;
+    break;
+  case PtpInterfaceFifo:
+  case PtpInterfaceTis:
+    break;
+  default:
+    break;
+  }
+
   CopyMem (mTpm2AcpiTemplate.Header.OemId, PcdGetPtr (PcdAcpiDefaultOemId), sizeof (mTpm2AcpiTemplate.Header.OemId));
   OemTableId = PcdGet64 (PcdAcpiDefaultOemTableId);
   CopyMem (&mTpm2AcpiTemplate.Header.OemTableId, &OemTableId, sizeof (UINT64));

SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.h

@@ -1,7 +1,7 @@
 /** @file
   The header file for Tcg2 SMM driver.
   
-Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2015 - 2016, Intel Corporation. All rights reserved.<BR>
 This program and the accompanying materials 
 are licensed and made available under the terms and conditions of the BSD License 
 which accompanies this distribution.  The full text of the license may be found at 
@@ -37,6 +37,9 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 #include <Library/TpmMeasurementLib.h>
 #include <Library/Tpm2DeviceLib.h>
 #include <Library/Tcg2PhysicalPresenceLib.h>
+#include <Library/IoLib.h>
+
+#include <IndustryStandard/TpmPtp.h>
 
 #pragma pack(1)
 typedef struct {

SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.inf

@@ -9,7 +9,7 @@
 #  This driver will have external input - variable and ACPINvs data in SMM mode.
 #  This external input must be validated carefully to avoid security issue.
 #
-# Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2015 - 2016, Intel Corporation. All rights reserved.<BR>
 # This program and the accompanying materials
 # are licensed and made available under the terms and conditions of the BSD License
 # which accompanies this distribution. The full text of the license may be found at
@@ -50,6 +50,7 @@
   TpmMeasurementLib
   Tpm2DeviceLib
   Tcg2PhysicalPresenceLib
+  IoLib
 
 [Guids]
   ## SOMETIMES_PRODUCES ## Variable:L"MemoryOverwriteRequestControl"
@@ -70,6 +71,7 @@
   gEfiMdeModulePkgTokenSpaceGuid.PcdAcpiDefaultOemRevision      ## SOMETIMES_CONSUMES
   gEfiMdeModulePkgTokenSpaceGuid.PcdAcpiDefaultCreatorId        ## SOMETIMES_CONSUMES
   gEfiMdeModulePkgTokenSpaceGuid.PcdAcpiDefaultCreatorRevision  ## SOMETIMES_CONSUMES
+  gEfiSecurityPkgTokenSpaceGuid.PcdTpmBaseAddress               ## CONSUMES
 
 [Depex]
   gEfiAcpiTableProtocolGuid AND

SecurityPkg/Tcg/Tcg2Smm/Tpm.asl

@@ -2,7 +2,7 @@
   The TPM2 definition block in ACPI table for TCG2 physical presence  
   and MemoryClear.
 
-Copyright (c) 2015 - 2016, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
 This program and the accompanying materials 
 are licensed and made available under the terms and conditions of the BSD License 
 which accompanies this distribution.  The full text of the license may be found at