ArmPlatformPkg/PrePeiCore: Reverse Stack & PeiTemporary

[mirror_edk2.git] / ArmPlatformPkg / PrePeiCore / MainUniCore.c

/** @file\r
*\r
*  Copyright (c) 2011, ARM Limited. All rights reserved.\r
*\r
*  This program and the accompanying materials\r
*  are licensed and made available under the terms and conditions of the BSD License\r
*  which accompanies this distribution.  The full text of the license may be found at\r
*  http://opensource.org/licenses/bsd-license.php\r
*\r
*  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
*  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
*\r
**/\r
\r
#include <Chipset/ArmV7.h>\r
\r
#include "PrePeiCore.h"\r
\r
VOID\r
EFIAPI\r
SecondaryMain (\r
  IN UINTN MpId\r
  )\r
{\r
  ASSERT(FALSE);\r
}\r
\r
VOID\r
EFIAPI\r
PrimaryMain (\r
  IN  EFI_PEI_CORE_ENTRY_POINT  PeiCoreEntryPoint\r
  )\r
{\r
  EFI_SEC_PEI_HAND_OFF        SecCoreData;\r
\r
\r
  //\r
  // Bind this information into the SEC hand-off state\r
  // Note: this must be in sync with the stuff in the asm file\r
  // Note also:  HOBs (pei temp ram) MUST be above stack\r
  //\r
  SecCoreData.DataSize               = sizeof(EFI_SEC_PEI_HAND_OFF);\r
  SecCoreData.BootFirmwareVolumeBase = (VOID *)(UINTN)PcdGet32 (PcdFvBaseAddress);\r
  SecCoreData.BootFirmwareVolumeSize = PcdGet32 (PcdFvSize);\r
  SecCoreData.TemporaryRamBase       = (VOID *)(UINTN)PcdGet32 (PcdCPUCorePrimaryStackSize); // We consider we run on the primary core (and so we use the first stack)\r
  SecCoreData.TemporaryRamSize       = (UINTN)(UINTN)PcdGet32 (PcdCPUCorePrimaryStackSize);\r
  SecCoreData.PeiTemporaryRamBase    = (VOID *)((UINTN)(SecCoreData.TemporaryRamBase) + (SecCoreData.TemporaryRamSize / 2));\r
  SecCoreData.PeiTemporaryRamSize    = SecCoreData.TemporaryRamSize / 2;\r
  SecCoreData.StackBase              = (VOID *)((UINTN)(SecCoreData.TemporaryRamBase) + (SecCoreData.TemporaryRamSize/2));\r
  SecCoreData.StackSize              = SecCoreData.TemporaryRamSize / 2;\r
\r
  // jump to pei core entry point\r
  (PeiCoreEntryPoint)(&SecCoreData, (VOID *)&gSecPpiTable);\r
}\r