ArmPlatformPkg/PrePeiCore/MainUniCore.c

   1 /** @file
   2 *
   3 *  Copyright (c) 2011, ARM Limited. All rights reserved.
   4 *
   5 *  This program and the accompanying materials
   6 *  are licensed and made available under the terms and conditions of the BSD License
   7 *  which accompanies this distribution.  The full text of the license may be found at
   8 *  http://opensource.org/licenses/bsd-license.php
   9 *
  10 *  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11 *  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12 *
  13 **/
  14
  15 #include <Chipset/ArmV7.h>
  16
  17 #include "PrePeiCore.h"
  18
  19 VOID
  20 EFIAPI
  21 SecondaryMain (
  22   IN UINTN MpId
  23   )
  24 {
  25   ASSERT(FALSE);
  26 }
  27
  28 VOID
  29 EFIAPI
  30 PrimaryMain (
  31   IN  EFI_PEI_CORE_ENTRY_POINT  PeiCoreEntryPoint
  32   )
  33 {
  34   EFI_SEC_PEI_HAND_OFF        SecCoreData;
  35   UINTN                       PpiListSize;
  36   EFI_PEI_PPI_DESCRIPTOR      *PpiList;
  37   UINTN                       TemporaryRamBase;
  38   UINTN                       TemporaryRamSize;
  39
  40   CreatePpiList (&PpiListSize, &PpiList);
  41
  42   // Adjust the Temporary Ram as the new Ppi List (Common + Platform Ppi Lists) is created at
  43   // the base of the primary core stack
  44   PpiListSize = ALIGN_VALUE(PpiListSize, 0x4);
  45   TemporaryRamBase = (UINTN)PcdGet32 (PcdCPUCoresStackBase) + PpiListSize;
  46   TemporaryRamSize = (UINTN)PcdGet32 (PcdCPUCorePrimaryStackSize) - PpiListSize;
  47
  48   //
  49   // Bind this information into the SEC hand-off state
  50   // Note: this must be in sync with the stuff in the asm file
  51   // Note also:  HOBs (pei temp ram) MUST be above stack
  52   //
  53   SecCoreData.DataSize               = sizeof(EFI_SEC_PEI_HAND_OFF);
  54   SecCoreData.BootFirmwareVolumeBase = (VOID *)(UINTN)PcdGet32 (PcdFvBaseAddress);
  55   SecCoreData.BootFirmwareVolumeSize = PcdGet32 (PcdFvSize);
  56   SecCoreData.TemporaryRamBase       = (VOID *)TemporaryRamBase; // We run on the primary core (and so we use the first stack)
  57   SecCoreData.TemporaryRamSize       = TemporaryRamSize;
  58   SecCoreData.PeiTemporaryRamBase    = SecCoreData.TemporaryRamBase;
  59   SecCoreData.PeiTemporaryRamSize    = SecCoreData.TemporaryRamSize / 2;
  60   SecCoreData.StackBase              = (VOID *)((UINTN)(SecCoreData.TemporaryRamBase) + (SecCoreData.TemporaryRamSize/2));
  61   SecCoreData.StackSize              = SecCoreData.TemporaryRamSize / 2;
  62
  63   // Jump to PEI core entry point
  64   (PeiCoreEntryPoint)(&SecCoreData, PpiList);
  65 }