PeiTpmMeasurementLib.c

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#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>
 
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;
}