From: Jiewen Yao <jiewen.yao@intel.com>
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2376
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Chasel Chiu <chasel.chiu@intel.com>
Cc: Nate DeSimone <nathaniel.l.desimone@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Cc: Qi Zhang <qi1.zhang@intel.com>
Signed-off-by: Jiewen Yao <jiewen.yao@intel.com>
---
.../BaseFspMeasurementLib.inf | 54 ++++
.../BaseFspMeasurementLib/FspMeasurementLib.c | 248 ++++++++++++++++++
2 files changed, 302 insertions(+)
create mode 100644 IntelFsp2WrapperPkg/Library/BaseFspMeasurementLib/BaseFspMeasurementLib.inf
create mode 100644 IntelFsp2WrapperPkg/Library/BaseFspMeasurementLib/FspMeasurementLib.c
diff --git a/IntelFsp2WrapperPkg/Library/BaseFspMeasurementLib/BaseFspMeasurementLib.inf b/IntelFsp2WrapperPkg/Library/BaseFspMeasurementLib/BaseFspMeasurementLib.inf
new file mode 100644
index 0000000000..9c0dd9fb40
--- /dev/null
+++ b/IntelFsp2WrapperPkg/Library/BaseFspMeasurementLib/BaseFspMeasurementLib.inf
@@ -0,0 +1,54 @@
+## @file
+# Provides FSP measurement functions.
+#
+# This library provides MeasureFspFirmwareBlob() to measure FSP binary.
+#
+# Copyright (c) 2020, Intel Corporation. All rights reserved.<BR>
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = FspMeasurementLib
+ FILE_GUID = 9A62C49D-C45A-4322-9F3C-45958DF0056B
+ MODULE_TYPE = BASE
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = FspMeasurementLib
+
+#
+# The following information is for reference only and not required by the build tools.
+#
+# VALID_ARCHITECTURES = IA32 X64
+#
+
+[Sources]
+ FspMeasurementLib.c
+
+[Packages]
+ MdePkg/MdePkg.dec
+ MdeModulePkg/MdeModulePkg.dec
+ SecurityPkg/SecurityPkg.dec
+ IntelFsp2Pkg/IntelFsp2Pkg.dec
+ IntelFsp2WrapperPkg/IntelFsp2WrapperPkg.dec
+
+[LibraryClasses]
+ BaseLib
+ BaseMemoryLib
+ DebugLib
+ PrintLib
+ PcdLib
+ PeiServicesLib
+ PeiServicesTablePointerLib
+ FspWrapperApiLib
+ FvEventLogRecordLib
+ HashLib
+
+[Ppis]
+ gEdkiiTcgPpiGuid ## CONSUMES
+
+[Pcd]
+ gIntelFsp2WrapperTokenSpaceGuid.PcdFspMeasurementConfig ## CONSUMES
+ gIntelFsp2WrapperTokenSpaceGuid.PcdFspmBaseAddress ## CONSUMES
+ gEfiMdeModulePkgTokenSpaceGuid.PcdTcgPfpMeasurementRevision ## CONSUMES
+
diff --git a/IntelFsp2WrapperPkg/Library/BaseFspMeasurementLib/FspMeasurementLib.c b/IntelFsp2WrapperPkg/Library/BaseFspMeasurementLib/FspMeasurementLib.c
new file mode 100644
index 0000000000..adb4393426
--- /dev/null
+++ b/IntelFsp2WrapperPkg/Library/BaseFspMeasurementLib/FspMeasurementLib.c
@@ -0,0 +1,248 @@
+/** @file
+ This library is used by FSP modules to measure data to TPM.
+
+Copyright (c) 2020, Intel Corporation. All rights reserved. <BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <PiPei.h>
+#include <Uefi.h>
+
+#include <Library/BaseMemoryLib.h>
+#include <Library/PeiServicesLib.h>
+#include <Library/PeiServicesTablePointerLib.h>
+#include <Library/PcdLib.h>
+#include <Library/PrintLib.h>
+#include <Library/DebugLib.h>
+#include <Library/FspWrapperApiLib.h>
+#include <Library/TpmMeasurementLib.h>
+#include <Library/FspMeasurementLib.h>
+#include <Library/FvEventLogRecordLib.h>
+#include <Library/HashLib.h>
+
+#include <Ppi/Tcg.h>
+#include <IndustryStandard/UefiTcgPlatform.h>
+
+/**
+ Tpm measure and log data, and extend the measurement result into a specific PCR.
+
+ @param[in] PcrIndex PCR Index.
+ @param[in] EventType Event type.
+ @param[in] EventLog Measurement event log.
+ @param[in] LogLen Event log length in bytes.
+ @param[in] HashData The start of the data buffer to be hashed, extended.
+ @param[in] HashDataLen The length, in bytes, of the buffer referenced by HashData
+ @param[in] Flags Bitmap providing additional information.
+
+ @retval EFI_SUCCESS Operation completed successfully.
+ @retval EFI_UNSUPPORTED TPM device not available.
+ @retval EFI_OUT_OF_RESOURCES Out of memory.
+ @retval EFI_DEVICE_ERROR The operation was unsuccessful.
+**/
+EFI_STATUS
+EFIAPI
+TpmMeasureAndLogDataWithFlags (
+ IN UINT32 PcrIndex,
+ IN UINT32 EventType,
+ IN VOID *EventLog,
+ IN UINT32 LogLen,
+ IN VOID *HashData,
+ IN UINT64 HashDataLen,
+ IN UINT64 Flags
+ )
+{
+ EFI_STATUS Status;
+ EDKII_TCG_PPI *TcgPpi;
+ TCG_PCR_EVENT_HDR TcgEventHdr;
+
+ Status = PeiServicesLocatePpi(
+ &gEdkiiTcgPpiGuid,
+ 0,
+ NULL,
+ (VOID**)&TcgPpi
+ );
+ if (EFI_ERROR(Status)) {
+ return Status;
+ }
+
+ TcgEventHdr.PCRIndex = PcrIndex;
+ TcgEventHdr.EventType = EventType;
+ TcgEventHdr.EventSize = LogLen;
+
+ Status = TcgPpi->HashLogExtendEvent (
+ TcgPpi,
+ Flags,
+ HashData,
+ (UINTN)HashDataLen,
+ &TcgEventHdr,
+ EventLog
+ );
+ return Status;
+}
+
+/**
+ Measure a FSP FirmwareBlob.
+
+ @param[in] Description Description for this FirmwareBlob.
+ @param[in] FirmwareBlobBase Base address of this FirmwareBlob.
+ @param[in] FirmwareBlobLength Size in bytes of this FirmwareBlob.
+ @param[in] CfgRegionOffset Configuration region offset in bytes.
+ @param[in] CfgRegionSize Configuration region in bytes.
+
+ @retval EFI_SUCCESS Operation completed successfully.
+ @retval EFI_UNSUPPORTED TPM device not available.
+ @retval EFI_OUT_OF_RESOURCES Out of memory.
+ @retval EFI_DEVICE_ERROR The operation was unsuccessful.
+**/
+STATIC
+EFI_STATUS
+EFIAPI
+MeasureFspFirmwareBlobWithCfg (
+ IN CHAR8 *Description OPTIONAL,
+ IN EFI_PHYSICAL_ADDRESS FirmwareBlobBase,
+ IN UINT64 FirmwareBlobLength,
+ IN UINT32 CfgRegionOffset,
+ IN UINT32 CfgRegionSize
+ )
+{
+ EFI_PLATFORM_FIRMWARE_BLOB FvBlob, UpdBlob;
+ PLATFORM_FIRMWARE_BLOB2_STRUCT FvBlob2, UpdBlob2;
+ VOID *FvName;
+ UINT32 FvEventType;
+ VOID *FvEventLog, *UpdEventLog;
+ UINT32 FvEventLogSize, UpdEventLogSize;
+ EFI_STATUS Status;
+ HASH_HANDLE HashHandle;
+ UINT8 *HashBase;
+ UINTN HashSize;
+ TPML_DIGEST_VALUES DigestList;
+
+ FvName = TpmMeasurementGetFvName (FirmwareBlobBase, FirmwareBlobLength);
+
+ if (((Description != NULL) || (FvName != NULL)) &&
+ (PcdGet32(PcdTcgPfpMeasurementRevision) >= TCG_EfiSpecIDEventStruct_SPEC_ERRATA_TPM2_REV_105)) {
+ if (Description != NULL) {
+ AsciiSPrint((CHAR8*)FvBlob2.BlobDescription, sizeof(FvBlob2.BlobDescription), "%a", Description);
+ AsciiSPrint((CHAR8*)UpdBlob2.BlobDescription, sizeof(UpdBlob2.BlobDescription), "%aUDP", Description);
+ } else {
+ AsciiSPrint((CHAR8*)FvBlob2.BlobDescription, sizeof(FvBlob2.BlobDescription), "Fv(%g)", FvName);
+ AsciiSPrint((CHAR8*)UpdBlob2.BlobDescription, sizeof(UpdBlob2.BlobDescription), "(%g)UDP", FvName);
+ }
+
+ FvBlob2.BlobDescriptionSize = sizeof(FvBlob2.BlobDescription);
+ FvBlob2.BlobBase = FirmwareBlobBase;
+ FvBlob2.BlobLength = FirmwareBlobLength;
+ FvEventType = EV_EFI_PLATFORM_FIRMWARE_BLOB2;
+ FvEventLog = &FvBlob2;
+ FvEventLogSize = sizeof(FvBlob2);
+
+ UpdBlob2.BlobDescriptionSize = sizeof(UpdBlob2.BlobDescription);
+ UpdBlob2.BlobBase = CfgRegionOffset;
+ UpdBlob2.BlobLength = CfgRegionSize;
+ UpdEventLog = &UpdBlob2;
+ UpdEventLogSize = sizeof(UpdBlob2);
+ } else {
+ FvBlob.BlobBase = FirmwareBlobBase;
+ FvBlob.BlobLength = FirmwareBlobLength;
+ FvEventType = EV_EFI_PLATFORM_FIRMWARE_BLOB;
+ FvEventLog = &FvBlob;
+ FvEventLogSize = sizeof(FvBlob);
+
+ UpdBlob.BlobBase = CfgRegionOffset;
+ UpdBlob.BlobLength = CfgRegionSize;
+ UpdEventLog = &UpdBlob;
+ UpdEventLogSize = sizeof(UpdBlob);
+ }
+
+ /** Initialize a SHA hash context. **/
+ Status = HashStart (&HashHandle);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_ERROR, "HashStart failed - %r\n", Status));
+ return Status;
+ }
+
+ /** Hash FSP binary before UDP **/
+ HashBase = (UINT8 *) (UINTN) FirmwareBlobBase;
+ HashSize = (UINTN) CfgRegionOffset;
+ Status = HashUpdate (HashHandle, HashBase, HashSize);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_ERROR, "HashUpdate failed - %r\n", Status));
+ return Status;
+ }
+
+ /** Hash FSP binary after UDP **/
+ HashBase = (UINT8 *) (UINTN) FirmwareBlobBase + CfgRegionOffset + CfgRegionSize;
+ HashSize = (UINTN)(FirmwareBlobLength - CfgRegionOffset - CfgRegionSize);
+ Status = HashUpdate (HashHandle, HashBase, HashSize);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_ERROR, "HashUpdate failed - %r\n", Status));
+ return Status;
+ }
+
+ /** Finalize the SHA hash. **/
+ Status = HashCompleteAndExtend (HashHandle, 0, NULL, 0, &DigestList);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_ERROR, "HashCompleteAndExtend failed - %r\n", Status));
+ return Status;
+ }
+
+ Status = TpmMeasureAndLogDataWithFlags (
+ 0,
+ FvEventType,
+ FvEventLog,
+ FvEventLogSize,
+ (UINT8 *) &DigestList,
+ (UINTN) sizeof(DigestList),
+ EDKII_TCG_PRE_HASH_LOG_ONLY
+ );
+
+ Status = TpmMeasureAndLogData (
+ 1,
+ EV_PLATFORM_CONFIG_FLAGS,
+ UpdEventLog,
+ UpdEventLogSize,
+ (UINT8 *) (UINTN) FirmwareBlobBase + CfgRegionOffset,
+ CfgRegionSize
+ );
+
+ return Status;
+}
+
+/**
+ Measure a FSP FirmwareBlob.
+
+ @param[in] PcrIndex PCR Index.
+ @param[in] Description Description for this FirmwareBlob.
+ @param[in] FirmwareBlobBase Base address of this FirmwareBlob.
+ @param[in] FirmwareBlobLength Size in bytes of this FirmwareBlob.
+
+ @retval EFI_SUCCESS Operation completed successfully.
+ @retval EFI_UNSUPPORTED TPM device not available.
+ @retval EFI_OUT_OF_RESOURCES Out of memory.
+ @retval EFI_DEVICE_ERROR The operation was unsuccessful.
+**/
+EFI_STATUS
+EFIAPI
+MeasureFspFirmwareBlob (
+ IN UINT32 PcrIndex,
+ IN CHAR8 *Description OPTIONAL,
+ IN EFI_PHYSICAL_ADDRESS FirmwareBlobBase,
+ IN UINT64 FirmwareBlobLength
+ )
+{
+ UINT32 FspMeasureMask;
+ FSP_INFO_HEADER *FspHeaderPtr;
+
+ FspMeasureMask = PcdGet32 (PcdFspMeasurementConfig);
+ if ((FspMeasureMask & FSP_MEASURE_FSPUPD) != 0) {
+ FspHeaderPtr = (FSP_INFO_HEADER *) FspFindFspHeader (FirmwareBlobBase);
+ if (FspHeaderPtr != NULL) {
+ return MeasureFspFirmwareBlobWithCfg(Description, FirmwareBlobBase, FirmwareBlobLength,
+ FspHeaderPtr->CfgRegionOffset, FspHeaderPtr->CfgRegionSize);
+ }
+ }
+
+ return MeasureFirmwareBlob (PcrIndex, Description, FirmwareBlobBase, FirmwareBlobLength);
+}
+
--
2.26.2.windows.1
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Reviewed-by: Chasel Chiu <chasel.chiu@intel.com>
> -----Original Message-----
> From: Zhang, Qi1 <qi1.zhang@intel.com>
> Sent: Friday, August 14, 2020 2:32 PM
> To: devel@edk2.groups.io
> Cc: Yao, Jiewen <jiewen.yao@intel.com>; Chiu, Chasel
> <chasel.chiu@intel.com>; Desimone, Nathaniel L
> <nathaniel.l.desimone@intel.com>; Zeng, Star <star.zeng@intel.com>; Zhang,
> Qi1 <qi1.zhang@intel.com>
> Subject: [PATCH v3 3/8] IntelFsp2WrapperPkg/FspMeasurementLib: Add
> BaseFspMeasurementLib.
>
> From: Jiewen Yao <jiewen.yao@intel.com>
>
> REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2376
>
> Cc: Jiewen Yao <jiewen.yao@intel.com>
> Cc: Chasel Chiu <chasel.chiu@intel.com>
> Cc: Nate DeSimone <nathaniel.l.desimone@intel.com>
> Cc: Star Zeng <star.zeng@intel.com>
> Cc: Qi Zhang <qi1.zhang@intel.com>
> Signed-off-by: Jiewen Yao <jiewen.yao@intel.com>
> ---
> .../BaseFspMeasurementLib.inf | 54 ++++
> .../BaseFspMeasurementLib/FspMeasurementLib.c | 248
> ++++++++++++++++++
> 2 files changed, 302 insertions(+)
> create mode 100644
> IntelFsp2WrapperPkg/Library/BaseFspMeasurementLib/BaseFspMeasuremen
> tLib.inf
> create mode 100644
> IntelFsp2WrapperPkg/Library/BaseFspMeasurementLib/FspMeasurementLib.
> c
>
> diff --git
> a/IntelFsp2WrapperPkg/Library/BaseFspMeasurementLib/BaseFspMeasurem
> entLib.inf
> b/IntelFsp2WrapperPkg/Library/BaseFspMeasurementLib/BaseFspMeasurem
> entLib.inf
> new file mode 100644
> index 0000000000..9c0dd9fb40
> --- /dev/null
> +++
> b/IntelFsp2WrapperPkg/Library/BaseFspMeasurementLib/BaseFspMeasurem
> entLib.inf
> @@ -0,0 +1,54 @@
> +## @file
>
> +# Provides FSP measurement functions.
>
> +#
>
> +# This library provides MeasureFspFirmwareBlob() to measure FSP binary.
>
> +#
>
> +# Copyright (c) 2020, Intel Corporation. All rights reserved.<BR>
>
> +# SPDX-License-Identifier: BSD-2-Clause-Patent
>
> +#
>
> +##
>
> +
>
> +[Defines]
>
> + INF_VERSION = 0x00010005
>
> + BASE_NAME = FspMeasurementLib
>
> + FILE_GUID =
> 9A62C49D-C45A-4322-9F3C-45958DF0056B
>
> + MODULE_TYPE = BASE
>
> + VERSION_STRING = 1.0
>
> + LIBRARY_CLASS = FspMeasurementLib
>
> +
>
> +#
>
> +# The following information is for reference only and not required by the
> build tools.
>
> +#
>
> +# VALID_ARCHITECTURES = IA32 X64
>
> +#
>
> +
>
> +[Sources]
>
> + FspMeasurementLib.c
>
> +
>
> +[Packages]
>
> + MdePkg/MdePkg.dec
>
> + MdeModulePkg/MdeModulePkg.dec
>
> + SecurityPkg/SecurityPkg.dec
>
> + IntelFsp2Pkg/IntelFsp2Pkg.dec
>
> + IntelFsp2WrapperPkg/IntelFsp2WrapperPkg.dec
>
> +
>
> +[LibraryClasses]
>
> + BaseLib
>
> + BaseMemoryLib
>
> + DebugLib
>
> + PrintLib
>
> + PcdLib
>
> + PeiServicesLib
>
> + PeiServicesTablePointerLib
>
> + FspWrapperApiLib
>
> + FvEventLogRecordLib
>
> + HashLib
>
> +
>
> +[Ppis]
>
> + gEdkiiTcgPpiGuid
> ## CONSUMES
>
> +
>
> +[Pcd]
>
> + gIntelFsp2WrapperTokenSpaceGuid.PcdFspMeasurementConfig
> ## CONSUMES
>
> + gIntelFsp2WrapperTokenSpaceGuid.PcdFspmBaseAddress
> ## CONSUMES
>
> + gEfiMdeModulePkgTokenSpaceGuid.PcdTcgPfpMeasurementRevision
> ## CONSUMES
>
> +
>
> diff --git
> a/IntelFsp2WrapperPkg/Library/BaseFspMeasurementLib/FspMeasurementLi
> b.c
> b/IntelFsp2WrapperPkg/Library/BaseFspMeasurementLib/FspMeasurementLi
> b.c
> new file mode 100644
> index 0000000000..adb4393426
> --- /dev/null
> +++
> b/IntelFsp2WrapperPkg/Library/BaseFspMeasurementLib/FspMeasurementLi
> b.c
> @@ -0,0 +1,248 @@
> +/** @file
>
> + This library is used by FSP modules to measure data to TPM.
>
> +
>
> +Copyright (c) 2020, Intel Corporation. All rights reserved. <BR>
>
> +SPDX-License-Identifier: BSD-2-Clause-Patent
>
> +
>
> +**/
>
> +
>
> +#include <PiPei.h>
>
> +#include <Uefi.h>
>
> +
>
> +#include <Library/BaseMemoryLib.h>
>
> +#include <Library/PeiServicesLib.h>
>
> +#include <Library/PeiServicesTablePointerLib.h>
>
> +#include <Library/PcdLib.h>
>
> +#include <Library/PrintLib.h>
>
> +#include <Library/DebugLib.h>
>
> +#include <Library/FspWrapperApiLib.h>
>
> +#include <Library/TpmMeasurementLib.h>
>
> +#include <Library/FspMeasurementLib.h>
>
> +#include <Library/FvEventLogRecordLib.h>
>
> +#include <Library/HashLib.h>
>
> +
>
> +#include <Ppi/Tcg.h>
>
> +#include <IndustryStandard/UefiTcgPlatform.h>
>
> +
>
> +/**
>
> + Tpm measure and log data, and extend the measurement result into a
> specific PCR.
>
> +
>
> + @param[in] PcrIndex PCR Index.
>
> + @param[in] EventType Event type.
>
> + @param[in] EventLog Measurement event log.
>
> + @param[in] LogLen Event log length in bytes.
>
> + @param[in] HashData The start of the data buffer to be
> hashed, extended.
>
> + @param[in] HashDataLen The length, in bytes, of the buffer
> referenced by HashData
>
> + @param[in] Flags Bitmap providing additional
> information.
>
> +
>
> + @retval EFI_SUCCESS Operation completed successfully.
>
> + @retval EFI_UNSUPPORTED TPM device not available.
>
> + @retval EFI_OUT_OF_RESOURCES Out of memory.
>
> + @retval EFI_DEVICE_ERROR The operation was unsuccessful.
>
> +**/
>
> +EFI_STATUS
>
> +EFIAPI
>
> +TpmMeasureAndLogDataWithFlags (
>
> + IN UINT32 PcrIndex,
>
> + IN UINT32 EventType,
>
> + IN VOID *EventLog,
>
> + IN UINT32 LogLen,
>
> + IN VOID *HashData,
>
> + IN UINT64 HashDataLen,
>
> + IN UINT64 Flags
>
> + )
>
> +{
>
> + EFI_STATUS Status;
>
> + EDKII_TCG_PPI *TcgPpi;
>
> + TCG_PCR_EVENT_HDR TcgEventHdr;
>
> +
>
> + Status = PeiServicesLocatePpi(
>
> + &gEdkiiTcgPpiGuid,
>
> + 0,
>
> + NULL,
>
> + (VOID**)&TcgPpi
>
> + );
>
> + if (EFI_ERROR(Status)) {
>
> + return Status;
>
> + }
>
> +
>
> + TcgEventHdr.PCRIndex = PcrIndex;
>
> + TcgEventHdr.EventType = EventType;
>
> + TcgEventHdr.EventSize = LogLen;
>
> +
>
> + Status = TcgPpi->HashLogExtendEvent (
>
> + TcgPpi,
>
> + Flags,
>
> + HashData,
>
> + (UINTN)HashDataLen,
>
> + &TcgEventHdr,
>
> + EventLog
>
> + );
>
> + return Status;
>
> +}
>
> +
>
> +/**
>
> + Measure a FSP FirmwareBlob.
>
> +
>
> + @param[in] Description Description for this
> FirmwareBlob.
>
> + @param[in] FirmwareBlobBase Base address of this
> FirmwareBlob.
>
> + @param[in] FirmwareBlobLength Size in bytes of this
> FirmwareBlob.
>
> + @param[in] CfgRegionOffset Configuration region offset in
> bytes.
>
> + @param[in] CfgRegionSize Configuration region in bytes.
>
> +
>
> + @retval EFI_SUCCESS Operation completed successfully.
>
> + @retval EFI_UNSUPPORTED TPM device not available.
>
> + @retval EFI_OUT_OF_RESOURCES Out of memory.
>
> + @retval EFI_DEVICE_ERROR The operation was unsuccessful.
>
> +**/
>
> +STATIC
>
> +EFI_STATUS
>
> +EFIAPI
>
> +MeasureFspFirmwareBlobWithCfg (
>
> + IN CHAR8 *Description OPTIONAL,
>
> + IN EFI_PHYSICAL_ADDRESS FirmwareBlobBase,
>
> + IN UINT64 FirmwareBlobLength,
>
> + IN UINT32 CfgRegionOffset,
>
> + IN UINT32 CfgRegionSize
>
> + )
>
> +{
>
> + EFI_PLATFORM_FIRMWARE_BLOB FvBlob, UpdBlob;
>
> + PLATFORM_FIRMWARE_BLOB2_STRUCT FvBlob2, UpdBlob2;
>
> + VOID *FvName;
>
> + UINT32 FvEventType;
>
> + VOID *FvEventLog, *UpdEventLog;
>
> + UINT32 FvEventLogSize,
> UpdEventLogSize;
>
> + EFI_STATUS Status;
>
> + HASH_HANDLE HashHandle;
>
> + UINT8 *HashBase;
>
> + UINTN HashSize;
>
> + TPML_DIGEST_VALUES DigestList;
>
> +
>
> + FvName = TpmMeasurementGetFvName (FirmwareBlobBase,
> FirmwareBlobLength);
>
> +
>
> + if (((Description != NULL) || (FvName != NULL)) &&
>
> + (PcdGet32(PcdTcgPfpMeasurementRevision) >=
> TCG_EfiSpecIDEventStruct_SPEC_ERRATA_TPM2_REV_105)) {
>
> + if (Description != NULL) {
>
> + AsciiSPrint((CHAR8*)FvBlob2.BlobDescription,
> sizeof(FvBlob2.BlobDescription), "%a", Description);
>
> + AsciiSPrint((CHAR8*)UpdBlob2.BlobDescription,
> sizeof(UpdBlob2.BlobDescription), "%aUDP", Description);
>
> + } else {
>
> + AsciiSPrint((CHAR8*)FvBlob2.BlobDescription,
> sizeof(FvBlob2.BlobDescription), "Fv(%g)", FvName);
>
> + AsciiSPrint((CHAR8*)UpdBlob2.BlobDescription,
> sizeof(UpdBlob2.BlobDescription), "(%g)UDP", FvName);
>
> + }
>
> +
>
> + FvBlob2.BlobDescriptionSize = sizeof(FvBlob2.BlobDescription);
>
> + FvBlob2.BlobBase = FirmwareBlobBase;
>
> + FvBlob2.BlobLength = FirmwareBlobLength;
>
> + FvEventType = EV_EFI_PLATFORM_FIRMWARE_BLOB2;
>
> + FvEventLog = &FvBlob2;
>
> + FvEventLogSize = sizeof(FvBlob2);
>
> +
>
> + UpdBlob2.BlobDescriptionSize = sizeof(UpdBlob2.BlobDescription);
>
> + UpdBlob2.BlobBase = CfgRegionOffset;
>
> + UpdBlob2.BlobLength = CfgRegionSize;
>
> + UpdEventLog = &UpdBlob2;
>
> + UpdEventLogSize = sizeof(UpdBlob2);
>
> + } else {
>
> + FvBlob.BlobBase = FirmwareBlobBase;
>
> + FvBlob.BlobLength = FirmwareBlobLength;
>
> + FvEventType = EV_EFI_PLATFORM_FIRMWARE_BLOB;
>
> + FvEventLog = &FvBlob;
>
> + FvEventLogSize = sizeof(FvBlob);
>
> +
>
> + UpdBlob.BlobBase = CfgRegionOffset;
>
> + UpdBlob.BlobLength = CfgRegionSize;
>
> + UpdEventLog = &UpdBlob;
>
> + UpdEventLogSize = sizeof(UpdBlob);
>
> + }
>
> +
>
> + /** Initialize a SHA hash context. **/
>
> + Status = HashStart (&HashHandle);
>
> + if (EFI_ERROR (Status)) {
>
> + DEBUG ((DEBUG_ERROR, "HashStart failed - %r\n", Status));
>
> + return Status;
>
> + }
>
> +
>
> + /** Hash FSP binary before UDP **/
>
> + HashBase = (UINT8 *) (UINTN) FirmwareBlobBase;
>
> + HashSize = (UINTN) CfgRegionOffset;
>
> + Status = HashUpdate (HashHandle, HashBase, HashSize);
>
> + if (EFI_ERROR (Status)) {
>
> + DEBUG ((DEBUG_ERROR, "HashUpdate failed - %r\n", Status));
>
> + return Status;
>
> + }
>
> +
>
> + /** Hash FSP binary after UDP **/
>
> + HashBase = (UINT8 *) (UINTN) FirmwareBlobBase + CfgRegionOffset +
> CfgRegionSize;
>
> + HashSize = (UINTN)(FirmwareBlobLength - CfgRegionOffset -
> CfgRegionSize);
>
> + Status = HashUpdate (HashHandle, HashBase, HashSize);
>
> + if (EFI_ERROR (Status)) {
>
> + DEBUG ((DEBUG_ERROR, "HashUpdate failed - %r\n", Status));
>
> + return Status;
>
> + }
>
> +
>
> + /** Finalize the SHA hash. **/
>
> + Status = HashCompleteAndExtend (HashHandle, 0, NULL, 0, &DigestList);
>
> + if (EFI_ERROR (Status)) {
>
> + DEBUG ((DEBUG_ERROR, "HashCompleteAndExtend failed - %r\n",
> Status));
>
> + return Status;
>
> + }
>
> +
>
> + Status = TpmMeasureAndLogDataWithFlags (
>
> + 0,
>
> + FvEventType,
>
> + FvEventLog,
>
> + FvEventLogSize,
>
> + (UINT8 *) &DigestList,
>
> + (UINTN) sizeof(DigestList),
>
> + EDKII_TCG_PRE_HASH_LOG_ONLY
>
> + );
>
> +
>
> + Status = TpmMeasureAndLogData (
>
> + 1,
>
> + EV_PLATFORM_CONFIG_FLAGS,
>
> + UpdEventLog,
>
> + UpdEventLogSize,
>
> + (UINT8 *) (UINTN) FirmwareBlobBase + CfgRegionOffset,
>
> + CfgRegionSize
>
> + );
>
> +
>
> + return Status;
>
> +}
>
> +
>
> +/**
>
> + Measure a FSP FirmwareBlob.
>
> +
>
> + @param[in] PcrIndex PCR Index.
>
> + @param[in] Description Description for this
> FirmwareBlob.
>
> + @param[in] FirmwareBlobBase Base address of this
> FirmwareBlob.
>
> + @param[in] FirmwareBlobLength Size in bytes of this
> FirmwareBlob.
>
> +
>
> + @retval EFI_SUCCESS Operation completed successfully.
>
> + @retval EFI_UNSUPPORTED TPM device not available.
>
> + @retval EFI_OUT_OF_RESOURCES Out of memory.
>
> + @retval EFI_DEVICE_ERROR The operation was unsuccessful.
>
> +**/
>
> +EFI_STATUS
>
> +EFIAPI
>
> +MeasureFspFirmwareBlob (
>
> + IN UINT32 PcrIndex,
>
> + IN CHAR8 *Description OPTIONAL,
>
> + IN EFI_PHYSICAL_ADDRESS FirmwareBlobBase,
>
> + IN UINT64 FirmwareBlobLength
>
> + )
>
> +{
>
> + UINT32 FspMeasureMask;
>
> + FSP_INFO_HEADER *FspHeaderPtr;
>
> +
>
> + FspMeasureMask = PcdGet32 (PcdFspMeasurementConfig);
>
> + if ((FspMeasureMask & FSP_MEASURE_FSPUPD) != 0) {
>
> + FspHeaderPtr = (FSP_INFO_HEADER *) FspFindFspHeader
> (FirmwareBlobBase);
>
> + if (FspHeaderPtr != NULL) {
>
> + return MeasureFspFirmwareBlobWithCfg(Description,
> FirmwareBlobBase, FirmwareBlobLength,
>
> +
> FspHeaderPtr->CfgRegionOffset, FspHeaderPtr->CfgRegionSize);
>
> + }
>
> + }
>
> +
>
> + return MeasureFirmwareBlob (PcrIndex, Description, FirmwareBlobBase,
> FirmwareBlobLength);
>
> +}
>
> +
>
> --
> 2.26.2.windows.1
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