ArmPlatformPkg/PrePi: Add support for PrePi module

[mirror_edk2.git] / ArmPlatformPkg / PrePi / PrePi.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 <PiPei.h>\r
\r
#include <Library/DebugAgentLib.h>\r
#include <Library/PrePiLib.h>\r
#include <Library/IoLib.h>\r
#include <Library/PrintLib.h>\r
#include <Library/PeCoffGetEntryPointLib.h>\r
#include <Library/TimerLib.h>\r
#include <Library/PerformanceLib.h>\r
\r
#include <Ppi/GuidedSectionExtraction.h>\r
#include <Guid/LzmaDecompress.h>\r
\r
#include "PrePi.h"\r
#include "LzmaDecompress.h"\r
\r
VOID\r
PrePiCommonExceptionEntry (\r
  IN UINT32 Entry,\r
  IN UINT32 LR\r
  );\r
\r
EFI_STATUS\r
EFIAPI\r
ExtractGuidedSectionLibConstructor (\r
  VOID\r
  );\r
\r
EFI_STATUS\r
EFIAPI\r
LzmaDecompressLibConstructor (\r
  VOID\r
  );\r
\r
VOID\r
PrePiMain (\r
  IN  UINTN                     UefiMemoryBase,\r
  IN  UINTN                     StackBase,\r
  IN  UINT64                    StartTimeStamp\r
  )\r
{\r
  EFI_HOB_HANDOFF_INFO_TABLE**   PrePiHobBase;\r
  EFI_STATUS                    Status;\r
  CHAR8                         Buffer[100];\r
  UINTN                         CharCount;\r
\r
  // Enable program flow prediction, if supported.\r
  ArmEnableBranchPrediction ();\r
\r
  if (FixedPcdGet32(PcdVFPEnabled)) {\r
    ArmEnableVFP();\r
  }\r
\r
  // Initialize the Serial Port\r
  SerialPortInitialize ();\r
  CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"UEFI firmware built at %a on %a\n\r",__TIME__, __DATE__);\r
  SerialPortWrite ((UINT8 *) Buffer, CharCount);\r
\r
  // Initialize the Debug Agent for Source Level Debugging\r
  InitializeDebugAgent (DEBUG_AGENT_INIT_POSTMEM_SEC, NULL, NULL);\r
  SaveAndSetDebugTimerInterrupt (TRUE);\r
\r
  PrePiHobBase = (EFI_HOB_HANDOFF_INFO_TABLE**)(PcdGet32 (PcdCPUCoresNonSecStackBase) + (PcdGet32 (PcdCPUCoresNonSecStackSize) / 2) - PcdGet32 (PcdHobListPtrGlobalOffset));\r
\r
  // We leave UINT32 at the top of UEFI memory for PcdPrePiHobBase\r
  *PrePiHobBase = HobConstructor (\r
    (VOID*)UefiMemoryBase,\r
    FixedPcdGet32 (PcdSystemMemoryUefiRegionSize),\r
    (VOID*)UefiMemoryBase,\r
    (VOID*)(UefiMemoryBase + FixedPcdGet32 (PcdSystemMemoryUefiRegionSize) - sizeof(UINT32)));\r
\r
  // Initialize MMU and Memory HOBs (Resource Descriptor HOBs)\r
  Status = MemoryPeim (UefiMemoryBase, FixedPcdGet32 (PcdSystemMemoryUefiRegionSize));\r
  ASSERT_EFI_ERROR (Status);\r
\r
  // Create the Stack HOB\r
  BuildStackHob (StackBase, FixedPcdGet32(PcdCPUCoresNonSecStackSize));\r
\r
  // Set the Boot Mode\r
  SetBootMode (ArmPlatformGetBootMode ());\r
\r
  // Initialize Platform HOBs (CpuHob and FvHob)\r
  Status = PlatformPeim ();\r
  ASSERT_EFI_ERROR (Status);\r
\r
  BuildMemoryTypeInformationHob ();\r
\r
  //InitializeDebugAgent (DEBUG_AGENT_INIT_PREMEM_SEC, NULL, NULL);\r
  //SaveAndSetDebugTimerInterrupt (TRUE);\r
\r
  // Now, the HOB List has been initialized, we can register performance information\r
  PERF_START (NULL, "PEI", NULL, StartTimeStamp);\r
\r
  // SEC phase needs to run library constructors by hand.\r
  ExtractGuidedSectionLibConstructor ();\r
  LzmaDecompressLibConstructor ();\r
\r
  // Build HOBs to pass up our version of stuff the DXE Core needs to save space\r
  BuildPeCoffLoaderHob ();\r
  BuildExtractSectionHob (\r
    &gLzmaCustomDecompressGuid,\r
    LzmaGuidedSectionGetInfo,\r
    LzmaGuidedSectionExtraction\r
    );\r
\r
  // Assume the FV that contains the SEC (our code) also contains a compressed FV.\r
  Status = DecompressFirstFv ();\r
  ASSERT_EFI_ERROR (Status);\r
\r
  // Load the DXE Core and transfer control to it\r
  Status = LoadDxeCoreFromFv (NULL, 0);\r
  ASSERT_EFI_ERROR (Status);\r
}\r
\r
VOID\r
CEntryPoint (\r
  IN  UINTN                     CoreId,\r
  IN  UINTN                     UefiMemoryBase,\r
  IN  UINTN                     StackBase\r
  )\r
{\r
  UINT64   StartTimeStamp;\r
\r
  if ((CoreId == 0) && PerformanceMeasurementEnabled ()) {\r
    // Initialize the Timer Library to setup the Timer HW controller\r
    TimerConstructor ();\r
    // We cannot call yet the PerformanceLib because the HOB List has not been initialized\r
    StartTimeStamp = GetPerformanceCounter ();\r
  }\r
\r
  //Clean Data cache\r
  ArmCleanInvalidateDataCache();\r
\r
  //Invalidate instruction cache\r
  ArmInvalidateInstructionCache();\r
\r
  //TODO:Drain Write Buffer\r
\r
  // Enable Instruction & Data caches\r
  ArmEnableDataCache();\r
  ArmEnableInstructionCache();\r
\r
  // Write VBAR - The Vector table must be 32-byte aligned\r
  ASSERT(((UINT32)PrePiVectorTable & ((1 << 5)-1)) == 0);\r
  ArmWriteVBar((UINT32)PrePiVectorTable);\r
\r
  //If not primary Jump to Secondary Main\r
  if(0 == CoreId) {\r
    // Goto primary Main.\r
    PrimaryMain (UefiMemoryBase, StackBase, StartTimeStamp);\r
  } else {\r
    SecondaryMain (CoreId);\r
  }\r
\r
  // DXE Core should always load and never return\r
  ASSERT (FALSE);\r
}\r
\r
VOID\r
PrePiCommonExceptionEntry (\r
  IN UINT32 Entry,\r
  IN UINT32 LR\r
  )\r
{\r
  CHAR8           Buffer[100];\r
  UINTN           CharCount;\r
\r
  switch (Entry) {\r
  case 0:\r
    CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"Reset Exception at 0x%X\n\r",LR);\r
    break;\r
  case 1:\r
    CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"Undefined Exception at 0x%X\n\r",LR);\r
    break;\r
  case 2:\r
    CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"SWI Exception at 0x%X\n\r",LR);\r
    break;\r
  case 3:\r
    CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"PrefetchAbort Exception at 0x%X\n\r",LR);\r
    break;\r
  case 4:\r
    CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"DataAbort Exception at 0x%X\n\r",LR);\r
    break;\r
  case 5:\r
    CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"Reserved Exception at 0x%X\n\r",LR);\r
    break;\r
  case 6:\r
    CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"IRQ Exception at 0x%X\n\r",LR);\r
    break;\r
  case 7:\r
    CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"FIQ Exception at 0x%X\n\r",LR);\r
    break;\r
  default:\r
    CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"Unknown Exception at 0x%X\n\r",LR);\r
    break;\r
  }\r
  SerialPortWrite ((UINT8 *) Buffer, CharCount);\r
  while(1);\r
}\r