From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id 3BBD781901 for ; Mon, 26 Dec 2016 17:51:24 -0800 (PST) Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga103.jf.intel.com with ESMTP; 26 Dec 2016 17:51:23 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.33,414,1477983600"; d="scan'208";a="1076528036" Received: from czhan46-mobl.ccr.corp.intel.com ([10.239.196.84]) by orsmga001.jf.intel.com with ESMTP; 26 Dec 2016 17:51:22 -0800 From: "Zhang, Chao B" To: edk2-devel@lists.01.org Cc: jiewen.yao@intel.com, star.zeng@intel.com, Chao Zhang Date: Tue, 27 Dec 2016 09:51:21 +0800 Message-Id: <1482803481-1108-1-git-send-email-chao.b.zhang@intel.com> X-Mailer: git-send-email 1.9.5.msysgit.1 Subject: [PATCH] SecurityPkg: Tcg2Smm: TPM2 Vendor specific HID X-BeenThere: edk2-devel@lists.01.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: EDK II Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 27 Dec 2016 01:51:24 -0000 Update TPM2 HID using vendor ManufacturerID & FirmwareVersion1. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Chao Zhang --- .../Library/Tpm2CommandLib/Tpm2Capability.c | 4 +- SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.c | 102 +++++++++++++++++++++ SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.h | 10 +- SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.inf | 2 +- SecurityPkg/Tcg/Tcg2Smm/Tpm.asl | 10 +- 5 files changed, 122 insertions(+), 6 deletions(-) diff --git a/SecurityPkg/Library/Tpm2CommandLib/Tpm2Capability.c b/SecurityPkg/Library/Tpm2CommandLib/Tpm2Capability.c index 9aab17f..79e80fb 100644 --- a/SecurityPkg/Library/Tpm2CommandLib/Tpm2Capability.c +++ b/SecurityPkg/Library/Tpm2CommandLib/Tpm2Capability.c @@ -1,7 +1,7 @@ /** @file Implement TPM2 Capability related command. -Copyright (c) 2013, Intel Corporation. All rights reserved.
+Copyright (c) 2013 - 2016, Intel Corporation. All rights reserved.
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 @@ -189,7 +189,7 @@ Tpm2GetCapabilityManufactureID ( if (EFI_ERROR (Status)) { return Status; } - *ManufactureId = SwapBytes32 (TpmCap.data.tpmProperties.tpmProperty->value); + *ManufactureId = TpmCap.data.tpmProperties.tpmProperty->value; return EFI_SUCCESS; } diff --git a/SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.c b/SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.c index d02123d..addb302 100644 --- a/SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.c +++ b/SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.c @@ -303,6 +303,103 @@ UpdatePPVersion ( } /** + Patch TPM2 device HID string. The initial string tag in TPM2 ACPI table is "NNN0000". + + @param[in, out] Table The TPM2 SSDT ACPI table. + + @return HID Update status. + +**/ +EFI_STATUS +UpdateHID ( + EFI_ACPI_DESCRIPTION_HEADER *Table + ) +{ + EFI_STATUS Status; + UINT8 *DataPtr; + CHAR8 HID[TPM_HID_ACPI_SIZE]; + UINT32 ManufacturerID; + UINT32 FirmwareVersion1; + UINT32 FirmwareVersion2; + BOOLEAN PnpHID; + + PnpHID = TRUE; + + // + // Initialize HID with Default PNP string + // + ZeroMem(HID, TPM_HID_ACPI_SIZE); + CopyMem(HID, TPM_HID_TAG, TPM_HID_PNP_SIZE); + + // + // Get Manufacturer ID + // + Status = Tpm2GetCapabilityManufactureID(&ManufacturerID); + if (!EFI_ERROR(Status)) { + DEBUG((EFI_D_INFO, "TPM_PT_VENDOR_STRING_1 0x%08x\n", ManufacturerID)); + // + // ManfacturerID defined in TCG Vendor ID Registry + // may tailed with 0x00 or 0x20 + // + if ((ManufacturerID >> 24) == 0x00 || ((ManufacturerID >> 24) == 0x20)) { + // + // HID containing PNP ID "NNN####" + // NNN is uppercase letter for Vendor ID specified by manufacturer + // + CopyMem(HID, &ManufacturerID, 3); + } else { + // + // HID containing ACP ID "NNNN####" + // NNNN is uppercase letter for Vendor ID specified by manufacturer + // + CopyMem(HID, &ManufacturerID, 4); + PnpHID = FALSE; + } + } else { + DEBUG ((EFI_D_ERROR, "Get TPM_PT_VENDOR_STRING_1 failed %x!\n", Status)); + } + + Status = Tpm2GetCapabilityFirmwareVersion(&FirmwareVersion1, &FirmwareVersion2); + if (!EFI_ERROR(Status)) { + DEBUG((EFI_D_INFO, "TPM_PT_FIRMWARE_VERSION_1 0x%x\n", FirmwareVersion1)); + DEBUG((EFI_D_INFO, "TPM_PT_FIRMWARE_VERSION_2 0x%x\n", FirmwareVersion2)); + // + // #### is Firmware Version 1 + // + if (PnpHID) { + AsciiSPrint(HID + 3, TPM_HID_PNP_SIZE - 3, "%02d%02d", ((FirmwareVersion1 & 0xFFFF0000) >> 16), (FirmwareVersion1 && 0x0000FFFF)); + } else { + AsciiSPrint(HID + 4, TPM_HID_ACPI_SIZE - 4, "%02d%02d", ((FirmwareVersion1 & 0xFFFF0000) >> 16), (FirmwareVersion1 && 0x0000FFFF)); + } + + } else { + DEBUG ((EFI_D_ERROR, "Get TPM_PT_FIRMWARE_VERSION_X failed %x!\n", Status)); + } + + // + // Patch HID in ASL code before loading the SSDT. + // + for (DataPtr = (UINT8 *)(Table + 1); + DataPtr <= (UINT8 *) ((UINT8 *) Table + Table->Length - TPM_HID_PNP_SIZE); + DataPtr += 1) { + if (AsciiStrCmp((CHAR8 *)DataPtr, TPM_HID_TAG) == 0) { + if (PnpHID) { + CopyMem(DataPtr, HID, TPM_HID_PNP_SIZE); + } else { + // + // NOOP will be patched to '\0' + // + CopyMem(DataPtr, HID, TPM_HID_ACPI_SIZE); + } + DEBUG((EFI_D_INFO, "TPM2 ACPI _HID updated to %a\n", HID)); + return Status; + } + } + + return EFI_NOT_FOUND; +} + +/** Initialize and publish TPM items in ACPI table. @retval EFI_SUCCESS The TCG ACPI table is published successfully. @@ -336,6 +433,11 @@ PublishAcpiTable ( ASSERT_EFI_ERROR (Status); // + // Update Table version before measuring it to PCR + // + Status = UpdateHID(Table); + + // // Measure to PCR[0] with event EV_POST_CODE ACPI DATA // TpmMeasureAndLogData( diff --git a/SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.h b/SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.h index 0b09032..18e8bfc 100644 --- a/SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.h +++ b/SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.h @@ -35,9 +35,10 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. #include #include #include -#include +#include #include #include +#include #include @@ -94,4 +95,11 @@ typedef struct { #define PHYSICAL_PRESENCE_VERSION_TAG "$PV" #define PHYSICAL_PRESENCE_VERSION_SIZE 4 +// +// PNP _HID for TPM2 device +// +#define TPM_HID_TAG "NNN0000" +#define TPM_HID_PNP_SIZE 8 +#define TPM_HID_ACPI_SIZE 9 + #endif // __TCG_SMM_H__ diff --git a/SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.inf b/SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.inf index 0de4fce..8c823d6 100644 --- a/SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.inf +++ b/SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.inf @@ -48,7 +48,7 @@ DebugLib DxeServicesLib TpmMeasurementLib - Tpm2DeviceLib + Tpm2CommandLib Tcg2PhysicalPresenceLib IoLib diff --git a/SecurityPkg/Tcg/Tcg2Smm/Tpm.asl b/SecurityPkg/Tcg/Tcg2Smm/Tpm.asl index 2083a3e..4128684 100644 --- a/SecurityPkg/Tcg/Tcg2Smm/Tpm.asl +++ b/SecurityPkg/Tcg/Tcg2Smm/Tpm.asl @@ -30,8 +30,14 @@ DefinitionBlock ( // // TCG2 // - Name (_HID, "MSFT0101") - + Name (_HID, "NNN0000") + // + // Reserve 1 more byte for ACPI HID + // + Noop + + Name (_CID, "MSFT0101") + // // Readable name of this device, don't know if this way is correct yet // -- 1.9.5.msysgit.1