StandaloneMmPkg/Library/StandaloneMmCoreEntryPoint/X64/StandaloneMmCoreEntryPoint.c

   1 /** @file
   2   Entry point to the Standalone Mm Core.
   3
   4 Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
   5 Copyright (c) Microsoft Corporation.
   6 SPDX-License-Identifier: BSD-2-Clause-Patent
   7
   8 **/
   9
  10 #include <PiMm.h>
  11
  12 #include <Library/StandaloneMmCoreEntryPoint.h>
  13 #include <Library/DebugLib.h>
  14 #include <Library/BaseLib.h>
  15
  16 //
  17 // Cache copy of HobList pointer.
  18 //
  19 VOID  *gHobList = NULL;
  20
  21 /**
  22   The entry point of PE/COFF Image for the STANDALONE MM Core.
  23
  24   This function is the entry point for the STANDALONE MM Core. This function is required to call
  25   ProcessModuleEntryPointList() and ProcessModuleEntryPointList() is never expected to return.
  26   The STANDALONE MM Core is responsible for calling ProcessLibraryConstructorList() as soon as the EFI
  27   System Table and the image handle for the STANDALONE MM Core itself have been established.
  28   If ProcessModuleEntryPointList() returns, then ASSERT() and halt the system.
  29
  30   @param  HobStart  Pointer to the beginning of the HOB List passed in from the PEI Phase.
  31
  32 **/
  33 VOID
  34 EFIAPI
  35 _ModuleEntryPoint (
  36   IN VOID  *HobStart
  37   )
  38 {
  39   //
  40   // Cache a pointer to the HobList
  41   //
  42   gHobList = HobStart;
  43
  44   //
  45   // Call the Standalone MM Core entry point
  46   //
  47   ProcessModuleEntryPointList (HobStart);
  48
  49   //
  50   // TODO: Set page table here?? AARCH64 has this step for some reason
  51   //
  52 }
  53
  54 /**
  55   Required by the EBC compiler and identical in functionality to _ModuleEntryPoint().
  56
  57   This function is required to call _ModuleEntryPoint() passing in HobStart.
  58
  59   @param  HobStart  Pointer to the beginning of the HOB List passed in from the PEI Phase.
  60
  61 **/
  62 VOID
  63 EFIAPI
  64 EfiMain (
  65   IN VOID  *HobStart
  66   )
  67 {
  68   _ModuleEntryPoint (HobStart);
  69 }