CryptoPkg/Library/BaseCryptLib/Hash/CryptDispatchApPei.c

   1 /** @file
   2   Dispatch Block to Aps in Pei phase for parallelhash algorithm.
   3
   4 Copyright (c) 2022, Intel Corporation. All rights reserved.<BR>
   5 SPDX-License-Identifier: BSD-2-Clause-Patent
   6
   7 **/
   8
   9 #include "CryptParallelHash.h"
  10 #include <Library/PeiServicesTablePointerLib.h>
  11 #include <PiPei.h>
  12 #include <Ppi/MpServices.h>
  13 #include <Library/PeiServicesLib.h>
  14
  15 /**
  16   Dispatch the block task to each AP in PEI phase.
  17
  18 **/
  19 VOID
  20 EFIAPI
  21 DispatchBlockToAp (
  22   VOID
  23   )
  24 {
  25   EFI_STATUS               Status;
  26   CONST EFI_PEI_SERVICES   **PeiServices;
  27   EFI_PEI_MP_SERVICES_PPI  *MpServicesPpi;
  28
  29   PeiServices = GetPeiServicesTablePointer ();
  30   Status      = (*PeiServices)->LocatePpi (
  31                                   PeiServices,
  32                                   &gEfiPeiMpServicesPpiGuid,
  33                                   0,
  34                                   NULL,
  35                                   (VOID **)&MpServicesPpi
  36                                   );
  37   if (EFI_ERROR (Status)) {
  38     //
  39     // Failed to locate MpServices Ppi, do parallel hash by one core.
  40     //
  41     DEBUG ((DEBUG_ERROR, "[DispatchBlockToApPei] Failed to locate MpServices Ppi. Status = %r\n", Status));
  42     return;
  43   }
  44
  45   Status = MpServicesPpi->StartupAllAPs (
  46                             (CONST EFI_PEI_SERVICES **)PeiServices,
  47                             MpServicesPpi,
  48                             ParallelHashApExecute,
  49                             FALSE,
  50                             0,
  51                             NULL
  52                             );
  53   return;
  54 }