ArmVirtPkg/PrePi/PrePi.c

   1 /** @file
   2 *
   3 *  Copyright (c) 2011-2014, 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 <PiPei.h>
  16
  17 #include <Library/PrePiLib.h>
  18 #include <Library/PrintLib.h>
  19 #include <Library/PeCoffGetEntryPointLib.h>
  20 #include <Library/PrePiHobListPointerLib.h>
  21 #include <Library/TimerLib.h>
  22 #include <Library/PerformanceLib.h>
  23 #include <Library/CacheMaintenanceLib.h>
  24
  25 #include <Ppi/GuidedSectionExtraction.h>
  26 #include <Ppi/ArmMpCoreInfo.h>
  27 #include <Guid/LzmaDecompress.h>
  28
  29 #include "PrePi.h"
  30 #include "LzmaDecompress.h"
  31
  32 VOID
  33 EFIAPI
  34 ProcessLibraryConstructorList (
  35   VOID
  36   );
  37
  38 VOID
  39 PrePiMain (
  40   IN  UINTN                     UefiMemoryBase,
  41   IN  UINTN                     StacksBase,
  42   IN  UINT64                    StartTimeStamp
  43   )
  44 {
  45   EFI_HOB_HANDOFF_INFO_TABLE*   HobList;
  46   EFI_STATUS                    Status;
  47   CHAR8                         Buffer[100];
  48   UINTN                         CharCount;
  49   UINTN                         StacksSize;
  50
  51   // Initialize the architecture specific bits
  52   ArchInitialize ();
  53
  54   // Declare the PI/UEFI memory region
  55   HobList = HobConstructor (
  56     (VOID*)UefiMemoryBase,
  57     FixedPcdGet32 (PcdSystemMemoryUefiRegionSize),
  58     (VOID*)UefiMemoryBase,
  59     (VOID*)StacksBase  // The top of the UEFI Memory is reserved for the stacks
  60     );
  61   PrePeiSetHobList (HobList);
  62
  63   //
  64   // Ensure that the loaded image is invalidated in the caches, so that any
  65   // modifications we made with the caches and MMU off (such as the applied
  66   // relocations) don't become invisible once we turn them on.
  67   //
  68   InvalidateDataCacheRange((VOID *)(UINTN)PcdGet64 (PcdFdBaseAddress), PcdGet32 (PcdFdSize));
  69
  70   // Initialize MMU and Memory HOBs (Resource Descriptor HOBs)
  71   Status = MemoryPeim (UefiMemoryBase, FixedPcdGet32 (PcdSystemMemoryUefiRegionSize));
  72   ASSERT_EFI_ERROR (Status);
  73
  74   // Initialize the Serial Port
  75   SerialPortInitialize ();
  76   CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"UEFI firmware (version %s built at %a on %a)\n\r",
  77     (CHAR16*)PcdGetPtr(PcdFirmwareVersionString), __TIME__, __DATE__);
  78   SerialPortWrite ((UINT8 *) Buffer, CharCount);
  79
  80   // Create the Stacks HOB (reserve the memory for all stacks)
  81   StacksSize = PcdGet32 (PcdCPUCorePrimaryStackSize);
  82   BuildStackHob (StacksBase, StacksSize);
  83
  84   //TODO: Call CpuPei as a library
  85   BuildCpuHob (PcdGet8 (PcdPrePiCpuMemorySize), PcdGet8 (PcdPrePiCpuIoSize));
  86
  87   // Set the Boot Mode
  88   SetBootMode (ArmPlatformGetBootMode ());
  89
  90   // Initialize Platform HOBs (CpuHob and FvHob)
  91   Status = PlatformPeim ();
  92   ASSERT_EFI_ERROR (Status);
  93
  94   // Now, the HOB List has been initialized, we can register performance information
  95   PERF_START (NULL, "PEI", NULL, StartTimeStamp);
  96
  97   // SEC phase needs to run library constructors by hand.
  98   ProcessLibraryConstructorList ();
  99
 100   // Build HOBs to pass up our version of stuff the DXE Core needs to save space
 101   BuildPeCoffLoaderHob ();
 102   BuildExtractSectionHob (
 103     &gLzmaCustomDecompressGuid,
 104     LzmaGuidedSectionGetInfo,
 105     LzmaGuidedSectionExtraction
 106     );
 107
 108   // Assume the FV that contains the SEC (our code) also contains a compressed FV.
 109   Status = DecompressFirstFv ();
 110   ASSERT_EFI_ERROR (Status);
 111
 112   // Load the DXE Core and transfer control to it
 113   Status = LoadDxeCoreFromFv (NULL, 0);
 114   ASSERT_EFI_ERROR (Status);
 115 }
 116
 117 VOID
 118 CEntryPoint (
 119   IN  UINTN                     MpId,
 120   IN  UINTN                     UefiMemoryBase,
 121   IN  UINTN                     StacksBase
 122   )
 123 {
 124   UINT64   StartTimeStamp;
 125
 126   // Initialize the platform specific controllers
 127   ArmPlatformInitialize (MpId);
 128
 129   if (PerformanceMeasurementEnabled ()) {
 130     // Initialize the Timer Library to setup the Timer HW controller
 131     TimerConstructor ();
 132     // We cannot call yet the PerformanceLib because the HOB List has not been initialized
 133     StartTimeStamp = GetPerformanceCounter ();
 134   } else {
 135     StartTimeStamp = 0;
 136   }
 137
 138   // Data Cache enabled on Primary core when MMU is enabled.
 139   ArmDisableDataCache ();
 140   // Invalidate instruction cache
 141   ArmInvalidateInstructionCache ();
 142   // Enable Instruction Caches on all cores.
 143   ArmEnableInstructionCache ();
 144
 145   PrePiMain (UefiMemoryBase, StacksBase, StartTimeStamp);
 146
 147   // DXE Core should always load and never return
 148   ASSERT (FALSE);
 149 }