SecurityPkg: Add TPM PTP support in TCG2 SMM.

[mirror_edk2.git] / SecurityPkg / Tcg / Tcg2Smm / Tcg2Smm.c

diff --git a/SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.c b/SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.c
index 503cc18dd98fef8d4f35bedda3560313c3d170d9..dab1f532cc9a68b9d77d32dc2c49cbded6171f42 100644 (file)
--- a/SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.c
+++ b/SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.c
@@ -9,7 +9,7 @@
 \r
   PhysicalPresenceCallback() and MemoryClearCallback() will receive untrusted input and do some check.\r
 \r
 \r
   PhysicalPresenceCallback() and MemoryClearCallback() will receive untrusted input and do some check.\r
 \r

-Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>\r
+Copyright (c) 2015 - 2016, Intel Corporation. All rights reserved.<BR>\r

 This program and the accompanying materials \r
 are licensed and made available under the terms and conditions of the BSD License \r
 which accompanies this distribution.  The full text of the license may be found at \r
 This program and the accompanying materials \r
 are licensed and made available under the terms and conditions of the BSD License \r
 which accompanies this distribution.  The full text of the license may be found at \r


@@ -22,6 +22,48 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 \r
 #include "Tcg2Smm.h"\r
 \r
 \r
 #include "Tcg2Smm.h"\r
 \r

+typedef enum {\r
+  PtpInterfaceTis,\r
+  PtpInterfaceFifo,\r
+  PtpInterfaceCrb,\r
+  PtpInterfaceMax,\r
+} PTP_INTERFACE_TYPE;\r
+\r
+/**\r
+  Return PTP interface type.\r
+\r
+  @param[in] Register                Pointer to PTP register.\r
+\r
+  @return PTP interface type.\r
+**/\r
+PTP_INTERFACE_TYPE\r
+GetPtpInterface (\r
+  IN VOID *Register\r
+  )\r
+{\r
+  PTP_CRB_INTERFACE_IDENTIFIER  InterfaceId;\r
+  PTP_FIFO_INTERFACE_CAPABILITY InterfaceCapability;\r
+\r
+  //\r
+  // Check interface id\r
+  //\r
+  InterfaceId.Uint32 = MmioRead32 ((UINTN)&((PTP_CRB_REGISTERS *)Register)->InterfaceId);\r
+  InterfaceCapability.Uint32 = MmioRead32 ((UINTN)&((PTP_FIFO_REGISTERS *)Register)->InterfaceCapability);\r
+\r
+  if ((InterfaceId.Bits.InterfaceType == PTP_INTERFACE_IDENTIFIER_INTERFACE_TYPE_CRB) &&\r
+      (InterfaceId.Bits.InterfaceVersion == PTP_INTERFACE_IDENTIFIER_INTERFACE_VERSION_CRB) &&\r
+      (InterfaceId.Bits.CapCRB != 0)) {\r
+    return PtpInterfaceCrb;\r
+  }\r
+  if ((InterfaceId.Bits.InterfaceType == PTP_INTERFACE_IDENTIFIER_INTERFACE_TYPE_FIFO) &&\r
+      (InterfaceId.Bits.InterfaceVersion == PTP_INTERFACE_IDENTIFIER_INTERFACE_VERSION_FIFO) &&\r
+      (InterfaceId.Bits.CapFIFO != 0) &&\r
+      (InterfaceCapability.Bits.InterfaceVersion == INTERFACE_CAPABILITY_INTERFACE_VERSION_PTP)) {\r
+    return PtpInterfaceFifo;\r
+  }\r
+  return PtpInterfaceTis;\r
+}\r
+\r

 EFI_TPM2_ACPI_TABLE  mTpm2AcpiTemplate = {\r
   {\r
     EFI_ACPI_5_0_TRUSTED_COMPUTING_PLATFORM_2_TABLE_SIGNATURE,\r
 EFI_TPM2_ACPI_TABLE  mTpm2AcpiTemplate = {\r
   {\r
     EFI_ACPI_5_0_TRUSTED_COMPUTING_PLATFORM_2_TABLE_SIGNATURE,\r


@@ -288,6 +330,8 @@ PublishTpm2 (
   EFI_ACPI_TABLE_PROTOCOL        *AcpiTable;\r
   UINTN                          TableKey;\r
   UINT64                         OemTableId;\r
   EFI_ACPI_TABLE_PROTOCOL        *AcpiTable;\r
   UINTN                          TableKey;\r
   UINT64                         OemTableId;\r

+  EFI_TPM2_ACPI_CONTROL_AREA     *ControlArea;\r
+  PTP_INTERFACE_TYPE             InterfaceType;\r

 \r
   //\r
   // Measure to PCR[0] with event EV_POST_CODE ACPI DATA\r
 \r
   //\r
   // Measure to PCR[0] with event EV_POST_CODE ACPI DATA\r


@@ -301,6 +345,24 @@ PublishTpm2 (
     sizeof(mTpm2AcpiTemplate)\r
     );\r
 \r
     sizeof(mTpm2AcpiTemplate)\r
     );\r
 \r

+  InterfaceType = GetPtpInterface ((VOID *) (UINTN) PcdGet64 (PcdTpmBaseAddress));\r
+  switch (InterfaceType) {\r
+  case PtpInterfaceCrb:\r
+    mTpm2AcpiTemplate.StartMethod = EFI_TPM2_ACPI_TABLE_START_METHOD_COMMAND_RESPONSE_BUFFER_INTERFACE;\r
+    mTpm2AcpiTemplate.AddressOfControlArea = PcdGet64 (PcdTpmBaseAddress) + 0x40;\r
+    ControlArea = (EFI_TPM2_ACPI_CONTROL_AREA *)(UINTN)mTpm2AcpiTemplate.AddressOfControlArea;\r
+    ControlArea->CommandSize  = 0xF80;\r
+    ControlArea->ResponseSize = 0xF80;\r
+    ControlArea->Command      = PcdGet64 (PcdTpmBaseAddress) + 0x80;\r
+    ControlArea->Response     = PcdGet64 (PcdTpmBaseAddress) + 0x80;\r
+    break;\r
+  case PtpInterfaceFifo:\r
+  case PtpInterfaceTis:\r
+    break;\r
+  default:\r
+    break;\r
+  }\r
+\r

   CopyMem (mTpm2AcpiTemplate.Header.OemId, PcdGetPtr (PcdAcpiDefaultOemId), sizeof (mTpm2AcpiTemplate.Header.OemId));\r
   OemTableId = PcdGet64 (PcdAcpiDefaultOemTableId);\r
   CopyMem (&mTpm2AcpiTemplate.Header.OemTableId, &OemTableId, sizeof (UINT64));\r
   CopyMem (mTpm2AcpiTemplate.Header.OemId, PcdGetPtr (PcdAcpiDefaultOemId), sizeof (mTpm2AcpiTemplate.Header.OemId));\r
   OemTableId = PcdGet64 (PcdAcpiDefaultOemTableId);\r
   CopyMem (&mTpm2AcpiTemplate.Header.OemTableId, &OemTableId, sizeof (UINT64));\r