1 files changed, 74 insertions, 0 deletions
diff --git a/SecurityPkg/Library/PeiTpmMeasurementLib/PeiTpmMeasurementLib.c b/SecurityPkg/Library/PeiTpmMeasurementLib/PeiTpmMeasurementLib.c
new file mode 100644
index 0000000000..200e15a294
--- /dev/null
+++ b/SecurityPkg/Library/PeiTpmMeasurementLib/PeiTpmMeasurementLib.c
@@ -0,0 +1,74 @@
+/** @file
+  This library is used by other 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 <Library/BaseMemoryLib.h>
+#include <Library/PeiServicesLib.h>
+#include <Library/PeiServicesTablePointerLib.h>
+#include <Library/DebugLib.h>
+#include <Library/HobLib.h>
+#include <Library/TpmMeasurementLib.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
+
+  @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
+TpmMeasureAndLogData (
+  IN UINT32             PcrIndex,
+  IN UINT32             EventType,
+  IN VOID               *EventLog,
+  IN UINT32             LogLen,
+  IN VOID               *HashData,
+  IN UINT64             HashDataLen
+  )
+{
+  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,
+                     0,
+                     HashData,
+                     (UINTN)HashDataLen,
+                     &TcgEventHdr,
+                     EventLog
+                     );
+  return Status;
+}