PeiTcg2PhysicalPresenceLib.c

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#include <PiPei.h>
 
#include <Guid/Tcg2PhysicalPresenceData.h>
#include <Ppi/ReadOnlyVariable2.h>
 
#include <Library/DebugLib.h>
#include <Library/PeiServicesLib.h>
#include <Library/PeiServicesTablePointerLib.h>
#include <Library/Tcg2PhysicalPresenceLib.h>
 
UINT32
EFIAPI
Tcg2PhysicalPresenceLibGetManagementFlags (
  VOID
  )
{
  EFI_STATUS                        Status;
  EFI_PEI_READ_ONLY_VARIABLE2_PPI   *VariablePpi;
  EFI_TCG2_PHYSICAL_PRESENCE_FLAGS  PpiFlags;
  UINTN                             DataSize;
 
  Status = PeiServicesLocatePpi (&gEfiPeiReadOnlyVariable2PpiGuid, 0, NULL, (VOID **)&VariablePpi);
  ASSERT_EFI_ERROR (Status);
 
  DataSize = sizeof (EFI_TCG2_PHYSICAL_PRESENCE_FLAGS);
  Status   = VariablePpi->GetVariable (
                            VariablePpi,
                            TCG2_PHYSICAL_PRESENCE_FLAGS_VARIABLE,
                            &gEfiTcg2PhysicalPresenceGuid,
                            NULL,
                            &DataSize,
                            &PpiFlags
                            );
  if (EFI_ERROR (Status)) {
    PpiFlags.PPFlags = PcdGet32 (PcdTcg2PhysicalPresenceFlags);
  }
 
  return PpiFlags.PPFlags;
}