[edk2-devel] [PATCH 3/3] OvmfPkg: Delete SecMeasurementLibTdx

Min Xu posted 3 patches 3 years, 8 months ago
[edk2-devel] [PATCH 3/3] OvmfPkg: Delete SecMeasurementLibTdx
Posted by Min Xu 3 years, 8 months ago
From: Min M Xu <min.m.xu@intel.com>

The feature of SecMeasurementLibTdx is replaced by SecTpmMeasurementLibTdx
(which is in SecurityPkg). So SecMeasurementLibTdx is deleted.

Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Min Xu <min.m.xu@intel.com>
---
 OvmfPkg/Include/Library/SecMeasurementLib.h   |  46 ---
 .../SecMeasurementLib/SecMeasurementLibTdx.c  | 340 ------------------
 .../SecMeasurementLibTdx.inf                  |  30 --
 OvmfPkg/OvmfPkg.dec                           |   4 -
 4 files changed, 420 deletions(-)
 delete mode 100644 OvmfPkg/Include/Library/SecMeasurementLib.h
 delete mode 100644 OvmfPkg/Library/SecMeasurementLib/SecMeasurementLibTdx.c
 delete mode 100644 OvmfPkg/Library/SecMeasurementLib/SecMeasurementLibTdx.inf

diff --git a/OvmfPkg/Include/Library/SecMeasurementLib.h b/OvmfPkg/Include/Library/SecMeasurementLib.h
deleted file mode 100644
index ca7a7dc3a9b2..000000000000
--- a/OvmfPkg/Include/Library/SecMeasurementLib.h
+++ /dev/null
@@ -1,46 +0,0 @@
-/** @file
-
-  Copyright (c) 2021, Intel Corporation. All rights reserved.<BR>
-
-  SPDX-License-Identifier: BSD-2-Clause-Patent
-
-**/
-
-#ifndef SEC_MEASUREMENT_LIB_H_
-#define SEC_MEASUREMENT_LIB_H_
-
-/**
-  Measure the Hoblist passed from the VMM.
-
-  @param[in] VmmHobList    The Hoblist pass the firmware
-
-  @retval EFI_SUCCESS           Fv image is measured successfully
-                                or it has been already measured.
-  @retval Others                Other errors as indicated
-**/
-EFI_STATUS
-EFIAPI
-MeasureHobList (
-  IN CONST VOID  *VmmHobList
-  );
-
-/**
-  Measure FV image.
-
-  @param[in]  FvBase            Base address of FV image.
-  @param[in]  FvLength          Length of FV image.
-  @param[in]  PcrIndex          Index of PCR
-
-  @retval EFI_SUCCESS           Fv image is measured successfully
-                                or it has been already measured.
-  @retval Others                Other errors as indicated
-**/
-EFI_STATUS
-EFIAPI
-MeasureFvImage (
-  IN EFI_PHYSICAL_ADDRESS  FvBase,
-  IN UINT64                FvLength,
-  IN UINT8                 PcrIndex
-  );
-
-#endif
diff --git a/OvmfPkg/Library/SecMeasurementLib/SecMeasurementLibTdx.c b/OvmfPkg/Library/SecMeasurementLib/SecMeasurementLibTdx.c
deleted file mode 100644
index 274fda1e563e..000000000000
--- a/OvmfPkg/Library/SecMeasurementLib/SecMeasurementLibTdx.c
+++ /dev/null
@@ -1,340 +0,0 @@
-/** @file
-*
-*  Copyright (c) 2021, Intel Corporation. All rights reserved.<BR>
-*  SPDX-License-Identifier: BSD-2-Clause-Patent
-*
-**/
-
-#include <PiPei.h>
-#include <Guid/CcEventHob.h>
-#include <Library/BaseMemoryLib.h>
-#include <Library/DebugLib.h>
-#include <Library/HashLib.h>
-#include <Library/HobLib.h>
-#include <Library/PrintLib.h>
-#include <IndustryStandard/Tpm20.h>
-#include <Protocol/CcMeasurement.h>
-#include <Library/SecMeasurementLib.h>
-
-#pragma pack(1)
-
-typedef struct {
-  UINT32           count;
-  TPMI_ALG_HASH    hashAlg;
-  BYTE             sha384[SHA384_DIGEST_SIZE];
-} TDX_DIGEST_VALUE;
-
-#define HANDOFF_TABLE_DESC  "TdxTable"
-typedef struct {
-  UINT8                      TableDescriptionSize;
-  UINT8                      TableDescription[sizeof (HANDOFF_TABLE_DESC)];
-  UINT64                     NumberOfTables;
-  EFI_CONFIGURATION_TABLE    TableEntry[1];
-} TDX_HANDOFF_TABLE_POINTERS2;
-
-#define FV_HANDOFF_TABLE_DESC  "Fv(XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX)"
-typedef struct {
-  UINT8                   BlobDescriptionSize;
-  UINT8                   BlobDescription[sizeof (FV_HANDOFF_TABLE_DESC)];
-  EFI_PHYSICAL_ADDRESS    BlobBase;
-  UINT64                  BlobLength;
-} FV_HANDOFF_TABLE_POINTERS2;
-
-#pragma pack()
-
-#define INVALID_PCR2MR_INDEX  0xFF
-
-/**
-    RTMR[0]  => PCR[1,7]
-    RTMR[1]  => PCR[2,3,4,5]
-    RTMR[2]  => PCR[8~15]
-    RTMR[3]  => NA
-  Note:
-    PCR[0] is mapped to MRTD and should not appear here.
-    PCR[6] is reserved for OEM. It is not used.
-**/
-UINT8
-GetMappedRtmrIndex (
-  UINT32  PCRIndex
-  )
-{
-  UINT8  RtmrIndex;
-
-  if ((PCRIndex == 6) || (PCRIndex == 0) || (PCRIndex > 15)) {
-    DEBUG ((DEBUG_ERROR, "Invalid PCRIndex(%d) map to MR Index.\n", PCRIndex));
-    ASSERT (FALSE);
-    return INVALID_PCR2MR_INDEX;
-  }
-
-  RtmrIndex = 0;
-  if ((PCRIndex == 1) || (PCRIndex == 7)) {
-    RtmrIndex = 0;
-  } else if ((PCRIndex >= 2) && (PCRIndex < 6)) {
-    RtmrIndex = 1;
-  } else if ((PCRIndex >= 8) && (PCRIndex <= 15)) {
-    RtmrIndex = 2;
-  }
-
-  return RtmrIndex;
-}
-
-/**
-  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
-  @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
-TdxMeasureAndLogData (
-  IN UINT32  PcrIndex,
-  IN UINT32  EventType,
-  IN VOID    *EventLog,
-  IN UINT32  LogLen,
-  IN VOID    *HashData,
-  IN UINT64  HashDataLen
-  )
-{
-  EFI_STATUS          Status;
-  UINT32              RtmrIndex;
-  VOID                *EventHobData;
-  TCG_PCR_EVENT2      *TcgPcrEvent2;
-  UINT8               *DigestBuffer;
-  TDX_DIGEST_VALUE    *TdxDigest;
-  TPML_DIGEST_VALUES  DigestList;
-  UINT8               *Ptr;
-
-  RtmrIndex = GetMappedRtmrIndex (PcrIndex);
-  if (RtmrIndex == INVALID_PCR2MR_INDEX) {
-    return EFI_INVALID_PARAMETER;
-  }
-
-  DEBUG ((DEBUG_INFO, "Creating TdTcg2PcrEvent PCR[%d]/RTMR[%d] EventType 0x%x\n", PcrIndex, RtmrIndex, EventType));
-
-  Status = HashAndExtend (
-             RtmrIndex,
-             (VOID *)HashData,
-             HashDataLen,
-             &DigestList
-             );
-
-  if (EFI_ERROR (Status)) {
-    DEBUG ((DEBUG_INFO, "Failed to HashAndExtend. %r\n", Status));
-    return Status;
-  }
-
-  //
-  // Use TDX_DIGEST_VALUE in the GUID HOB DataLength calculation
-  // to reserve enough buffer to hold TPML_DIGEST_VALUES compact binary
-  // which is limited to a SHA384 digest list
-  //
-  EventHobData = BuildGuidHob (
-                   &gCcEventEntryHobGuid,
-                   sizeof (TcgPcrEvent2->PCRIndex) + sizeof (TcgPcrEvent2->EventType) +
-                   sizeof (TDX_DIGEST_VALUE) +
-                   sizeof (TcgPcrEvent2->EventSize) + LogLen
-                   );
-
-  if (EventHobData == NULL) {
-    return EFI_OUT_OF_RESOURCES;
-  }
-
-  Ptr = (UINT8 *)EventHobData;
-  //
-  // Initialize PcrEvent data now
-  //
-  RtmrIndex++;
-  CopyMem (Ptr, &RtmrIndex, sizeof (UINT32));
-  Ptr += sizeof (UINT32);
-  CopyMem (Ptr, &EventType, sizeof (TCG_EVENTTYPE));
-  Ptr += sizeof (TCG_EVENTTYPE);
-
-  DigestBuffer = Ptr;
-
-  TdxDigest          = (TDX_DIGEST_VALUE *)DigestBuffer;
-  TdxDigest->count   = 1;
-  TdxDigest->hashAlg = TPM_ALG_SHA384;
-  CopyMem (
-    TdxDigest->sha384,
-    DigestList.digests[0].digest.sha384,
-    SHA384_DIGEST_SIZE
-    );
-
-  Ptr += sizeof (TDX_DIGEST_VALUE);
-
-  CopyMem (Ptr, &LogLen, sizeof (UINT32));
-  Ptr += sizeof (UINT32);
-  CopyMem (Ptr, EventLog, LogLen);
-  Ptr += LogLen;
-
-  Status = EFI_SUCCESS;
-  return Status;
-}
-
-/**
-  Measure the Hoblist passed from the VMM.
-
-  @param[in] VmmHobList    The Hoblist pass the firmware
-
-  @retval EFI_SUCCESS           Fv image is measured successfully
-                                or it has been already measured.
-  @retval Others                Other errors as indicated
-**/
-EFI_STATUS
-EFIAPI
-MeasureHobList (
-  IN CONST VOID  *VmmHobList
-  )
-{
-  EFI_PEI_HOB_POINTERS         Hob;
-  TDX_HANDOFF_TABLE_POINTERS2  HandoffTables;
-  EFI_STATUS                   Status;
-
-  if (!TdIsEnabled ()) {
-    ASSERT (FALSE);
-    return EFI_UNSUPPORTED;
-  }
-
-  Hob.Raw = (UINT8 *)VmmHobList;
-
-  //
-  // Parse the HOB list until end of list.
-  //
-  while (!END_OF_HOB_LIST (Hob)) {
-    Hob.Raw = GET_NEXT_HOB (Hob);
-  }
-
-  //
-  // Init the log event for HOB measurement
-  //
-
-  HandoffTables.TableDescriptionSize = sizeof (HandoffTables.TableDescription);
-  CopyMem (HandoffTables.TableDescription, HANDOFF_TABLE_DESC, sizeof (HandoffTables.TableDescription));
-  HandoffTables.NumberOfTables = 1;
-  CopyGuid (&(HandoffTables.TableEntry[0].VendorGuid), &gUefiOvmfPkgTokenSpaceGuid);
-  HandoffTables.TableEntry[0].VendorTable = (VOID *)VmmHobList;
-
-  Status = TdxMeasureAndLogData (
-             1,                                              // PCRIndex
-             EV_EFI_HANDOFF_TABLES2,                         // EventType
-             (VOID *)&HandoffTables,                         // EventData
-             sizeof (HandoffTables),                         // EventSize
-             (UINT8 *)(UINTN)VmmHobList,                     // HashData
-             (UINTN)((UINT8 *)Hob.Raw - (UINT8 *)VmmHobList) // HashDataLen
-             );
-
-  if (EFI_ERROR (Status)) {
-    ASSERT (FALSE);
-  }
-
-  return Status;
-}
-
-/**
-  Get the FvName from the FV header.
-
-  Causion: The FV is untrusted input.
-
-  @param[in]  FvBase            Base address of FV image.
-  @param[in]  FvLength          Length of FV image.
-
-  @return FvName pointer
-  @retval NULL   FvName is NOT found
-**/
-VOID *
-GetFvName (
-  IN EFI_PHYSICAL_ADDRESS  FvBase,
-  IN UINT64                FvLength
-  )
-{
-  EFI_FIRMWARE_VOLUME_HEADER      *FvHeader;
-  EFI_FIRMWARE_VOLUME_EXT_HEADER  *FvExtHeader;
-
-  if (FvBase >= MAX_ADDRESS) {
-    return NULL;
-  }
-
-  if (FvLength >= MAX_ADDRESS - FvBase) {
-    return NULL;
-  }
-
-  if (FvLength < sizeof (EFI_FIRMWARE_VOLUME_HEADER)) {
-    return NULL;
-  }
-
-  FvHeader = (EFI_FIRMWARE_VOLUME_HEADER *)(UINTN)FvBase;
-  if (FvHeader->ExtHeaderOffset < sizeof (EFI_FIRMWARE_VOLUME_HEADER)) {
-    return NULL;
-  }
-
-  if (FvHeader->ExtHeaderOffset + sizeof (EFI_FIRMWARE_VOLUME_EXT_HEADER) > FvLength) {
-    return NULL;
-  }
-
-  FvExtHeader = (EFI_FIRMWARE_VOLUME_EXT_HEADER *)(UINTN)(FvBase + FvHeader->ExtHeaderOffset);
-
-  return &FvExtHeader->FvName;
-}
-
-/**
-  Measure FV image.
-
-  @param[in]  FvBase            Base address of FV image.
-  @param[in]  FvLength          Length of FV image.
-  @param[in]  PcrIndex          Index of PCR
-
-  @retval EFI_SUCCESS           Fv image is measured successfully
-                                or it has been already measured.
-  @retval EFI_OUT_OF_RESOURCES  No enough memory to log the new event.
-  @retval EFI_DEVICE_ERROR      The command was unsuccessful.
-
-**/
-EFI_STATUS
-EFIAPI
-MeasureFvImage (
-  IN EFI_PHYSICAL_ADDRESS  FvBase,
-  IN UINT64                FvLength,
-  IN UINT8                 PcrIndex
-  )
-{
-  EFI_STATUS                  Status;
-  FV_HANDOFF_TABLE_POINTERS2  FvBlob2;
-  VOID                        *FvName;
-
-  //
-  // Init the log event for FV measurement
-  //
-  FvBlob2.BlobDescriptionSize = sizeof (FvBlob2.BlobDescription);
-  CopyMem (FvBlob2.BlobDescription, FV_HANDOFF_TABLE_DESC, sizeof (FvBlob2.BlobDescription));
-  FvName = GetFvName (FvBase, FvLength);
-  if (FvName != NULL) {
-    AsciiSPrint ((CHAR8 *)FvBlob2.BlobDescription, sizeof (FvBlob2.BlobDescription), "Fv(%g)", FvName);
-  }
-
-  FvBlob2.BlobBase   = FvBase;
-  FvBlob2.BlobLength = FvLength;
-
-  Status = TdxMeasureAndLogData (
-             1,                              // PCRIndex
-             EV_EFI_PLATFORM_FIRMWARE_BLOB2, // EventType
-             (VOID *)&FvBlob2,               // EventData
-             sizeof (FvBlob2),               // EventSize
-             (UINT8 *)(UINTN)FvBase,         // HashData
-             (UINTN)(FvLength)               // HashDataLen
-             );
-
-  if (EFI_ERROR (Status)) {
-    DEBUG ((DEBUG_ERROR, "The FV which failed to be measured starts at: 0x%x\n", FvBase));
-    ASSERT (FALSE);
-  }
-
-  return Status;
-}
diff --git a/OvmfPkg/Library/SecMeasurementLib/SecMeasurementLibTdx.inf b/OvmfPkg/Library/SecMeasurementLib/SecMeasurementLibTdx.inf
deleted file mode 100644
index 6215df5af8fc..000000000000
--- a/OvmfPkg/Library/SecMeasurementLib/SecMeasurementLibTdx.inf
+++ /dev/null
@@ -1,30 +0,0 @@
-#/** @file
-#
-#  Copyright (c) 2021, Intel Corporation. All rights reserved.<BR>
-#  SPDX-License-Identifier: BSD-2-Clause-Patent
-#
-#**/
-
-[Defines]
-  INF_VERSION                    = 0x00010005
-  BASE_NAME                      = SecMeasurementLibTdx
-  FILE_GUID                      = 3e3fc69d-e834-40e9-96ed-e1e721f41883
-  MODULE_TYPE                    = BASE
-  VERSION_STRING                 = 1.0
-  LIBRARY_CLASS                  = SecMeasurementLib
-
-[Sources]
-  SecMeasurementLibTdx.c
-
-[Packages]
-  MdePkg/MdePkg.dec
-  OvmfPkg/OvmfPkg.dec
-  CryptoPkg/CryptoPkg.dec
-  SecurityPkg/SecurityPkg.dec
-
-[Guids]
-  gCcEventEntryHobGuid
-  gUefiOvmfPkgTokenSpaceGuid
-
-[LibraryClasses]
-  HashLib
diff --git a/OvmfPkg/OvmfPkg.dec b/OvmfPkg/OvmfPkg.dec
index 5fe487f82d1a..7b114a5e63b2 100644
--- a/OvmfPkg/OvmfPkg.dec
+++ b/OvmfPkg/OvmfPkg.dec
@@ -125,10 +125,6 @@
   #
   PeilessStartupLib|Include/Library/PeilessStartupLib.h
 
-  ##  @libraryclass  SecMeasurementLib
-  #
-  SecMeasurementLib|Include/Library/SecMeasurementLib.h
-
 [Guids]
   gUefiOvmfPkgTokenSpaceGuid            = {0x93bb96af, 0xb9f2, 0x4eb8, {0x94, 0x62, 0xe0, 0xba, 0x74, 0x56, 0x42, 0x36}}
   gEfiXenInfoGuid                       = {0xd3b46f3b, 0xd441, 0x1244, {0x9a, 0x12, 0x0, 0x12, 0x27, 0x3f, 0xc1, 0x4d}}
-- 
2.29.2.windows.2



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