Reset.c

Go to the documentation of this file.

 
#include "PeiMain.h"
 
EFI_STATUS
EFIAPI
PeiResetSystem (
  IN CONST EFI_PEI_SERVICES  **PeiServices
  )
{
  EFI_STATUS         Status;
  EFI_PEI_RESET_PPI  *ResetPpi;
 
  //
  // Attempt to use newer ResetSystem2().  If this returns, then ResetSystem2()
  // is not available.
  //
  PeiResetSystem2 (EfiResetCold, EFI_SUCCESS, 0, NULL);
 
  //
  // Look for PEI Reset System PPI
  //
  Status = PeiServicesLocatePpi (
             &gEfiPeiResetPpiGuid,
             0,
             NULL,
             (VOID **)&ResetPpi
             );
  if (!EFI_ERROR (Status)) {
    return ResetPpi->ResetSystem (PeiServices);
  }
 
  //
  // Report Status Code that Reset PPI is not available.
  //
  REPORT_STATUS_CODE (
    EFI_ERROR_CODE | EFI_ERROR_MINOR,
    (EFI_SOFTWARE_PEI_CORE | EFI_SW_PS_EC_RESET_NOT_AVAILABLE)
    );
 
  //
  // No reset PPIs are available yet.
  //
  return EFI_NOT_AVAILABLE_YET;
}
 
VOID
EFIAPI
PeiResetSystem2 (
  IN EFI_RESET_TYPE  ResetType,
  IN EFI_STATUS      ResetStatus,
  IN UINTN           DataSize,
  IN VOID            *ResetData OPTIONAL
  )
{
  EFI_STATUS          Status;
  EFI_PEI_RESET2_PPI  *Reset2Ppi;
 
  //
  // Look for PEI Reset System 2 PPI
  //
  Status = PeiServicesLocatePpi (
             &gEfiPeiReset2PpiGuid,
             0,
             NULL,
             (VOID **)&Reset2Ppi
             );
  if (!EFI_ERROR (Status)) {
    Reset2Ppi->ResetSystem (ResetType, ResetStatus, DataSize, ResetData);
    return;
  }
 
  //
  // Report Status Code that Reset2 PPI is not available.
  //
  REPORT_STATUS_CODE (
    EFI_ERROR_CODE | EFI_ERROR_MINOR,
    (EFI_SOFTWARE_PEI_CORE | EFI_SW_PS_EC_RESET_NOT_AVAILABLE)
    );
}