BeagleBoardPkg/PrePi/PrePi.c

   1 /** @file
   2 *
   3 *  Copyright (c) 2011-2017, ARM Limited. All rights reserved.
   4 *  Copyright (c) 2017, Linaro, Ltd. All rights reserved.
   5 *
   6 *  This program and the accompanying materials
   7 *  are licensed and made available under the terms and conditions of the BSD License
   8 *  which accompanies this distribution.  The full text of the license may be found at
   9 *  http://opensource.org/licenses/bsd-license.php
  10 *
  11 *  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  12 *  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  13 *
  14 **/
  15
  16 #include <PiPei.h>
  17
  18 #include <Library/DebugAgentLib.h>
  19 #include <Library/PrePiLib.h>
  20 #include <Library/PrintLib.h>
  21 #include <Library/PeCoffGetEntryPointLib.h>
  22 #include <Library/PrePiHobListPointerLib.h>
  23 #include <Library/TimerLib.h>
  24 #include <Library/PerformanceLib.h>
  25
  26 #include <Ppi/GuidedSectionExtraction.h>
  27 #include <Ppi/ArmMpCoreInfo.h>
  28 #include <Ppi/SecPerformance.h>
  29 #include <Guid/LzmaDecompress.h>
  30
  31 #include "PrePi.h"
  32 #include "LzmaDecompress.h"
  33
  34 #define IS_XIP() (((UINT64)FixedPcdGet64 (PcdFdBaseAddress) > mSystemMemoryEnd) || \
  35                   ((FixedPcdGet64 (PcdFdBaseAddress) + FixedPcdGet32 (PcdFdSize)) < FixedPcdGet64 (PcdSystemMemoryBase)))
  36
  37 UINT64 mSystemMemoryEnd = FixedPcdGet64(PcdSystemMemoryBase) +
  38                           FixedPcdGet64(PcdSystemMemorySize) - 1;
  39
  40 EFI_STATUS
  41 GetPlatformPpi (
  42   IN  EFI_GUID  *PpiGuid,
  43   OUT VOID      **Ppi
  44   )
  45 {
  46   UINTN                   PpiListSize;
  47   UINTN                   PpiListCount;
  48   EFI_PEI_PPI_DESCRIPTOR  *PpiList;
  49   UINTN                   Index;
  50
  51   PpiListSize = 0;
  52   ArmPlatformGetPlatformPpiList (&PpiListSize, &PpiList);
  53   PpiListCount = PpiListSize / sizeof(EFI_PEI_PPI_DESCRIPTOR);
  54   for (Index = 0; Index < PpiListCount; Index++, PpiList++) {
  55     if (CompareGuid (PpiList->Guid, PpiGuid) == TRUE) {
  56       *Ppi = PpiList->Ppi;
  57       return EFI_SUCCESS;
  58     }
  59   }
  60
  61   return EFI_NOT_FOUND;
  62 }
  63
  64 VOID
  65 PrePiMain (
  66   IN  UINTN                     UefiMemoryBase,
  67   IN  UINTN                     StacksBase,
  68   IN  UINT64                    StartTimeStamp
  69   )
  70 {
  71   EFI_HOB_HANDOFF_INFO_TABLE*   HobList;
  72   EFI_STATUS                    Status;
  73   CHAR8                         Buffer[100];
  74   UINTN                         CharCount;
  75   UINTN                         StacksSize;
  76   FIRMWARE_SEC_PERFORMANCE      Performance;
  77
  78   // If ensure the FD is either part of the System Memory or totally outside of the System Memory (XIP)
  79   ASSERT (IS_XIP() ||
  80           ((FixedPcdGet64 (PcdFdBaseAddress) >= FixedPcdGet64 (PcdSystemMemoryBase)) &&
  81            ((UINT64)(FixedPcdGet64 (PcdFdBaseAddress) + FixedPcdGet32 (PcdFdSize)) <= (UINT64)mSystemMemoryEnd)));
  82
  83   // Initialize the architecture specific bits
  84   ArchInitialize ();
  85
  86   // Initialize the Serial Port
  87   SerialPortInitialize ();
  88   CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"UEFI firmware (version %s built at %a on %a)\n\r",
  89     (CHAR16*)PcdGetPtr(PcdFirmwareVersionString), __TIME__, __DATE__);
  90   SerialPortWrite ((UINT8 *) Buffer, CharCount);
  91
  92   // Initialize the Debug Agent for Source Level Debugging
  93   InitializeDebugAgent (DEBUG_AGENT_INIT_POSTMEM_SEC, NULL, NULL);
  94   SaveAndSetDebugTimerInterrupt (TRUE);
  95
  96   // Declare the PI/UEFI memory region
  97   HobList = HobConstructor (
  98     (VOID*)UefiMemoryBase,
  99     FixedPcdGet32 (PcdSystemMemoryUefiRegionSize),
 100     (VOID*)UefiMemoryBase,
 101     (VOID*)StacksBase  // The top of the UEFI Memory is reserved for the stacks
 102     );
 103   PrePeiSetHobList (HobList);
 104
 105   // Initialize MMU and Memory HOBs (Resource Descriptor HOBs)
 106   Status = MemoryPeim (UefiMemoryBase, FixedPcdGet32 (PcdSystemMemoryUefiRegionSize));
 107   ASSERT_EFI_ERROR (Status);
 108
 109   StacksSize = PcdGet32 (PcdCPUCorePrimaryStackSize);
 110   BuildStackHob (StacksBase, StacksSize);
 111
 112   //TODO: Call CpuPei as a library
 113   BuildCpuHob (PcdGet8 (PcdPrePiCpuMemorySize), PcdGet8 (PcdPrePiCpuIoSize));
 114
 115   // Store timer value logged at the beginning of firmware image execution
 116   Performance.ResetEnd = GetTimeInNanoSecond (StartTimeStamp);
 117
 118   // Build SEC Performance Data Hob
 119   BuildGuidDataHob (&gEfiFirmwarePerformanceGuid, &Performance, sizeof (Performance));
 120
 121   // Set the Boot Mode
 122   SetBootMode (ArmPlatformGetBootMode ());
 123
 124   // Initialize Platform HOBs (CpuHob and FvHob)
 125   Status = PlatformPeim ();
 126   ASSERT_EFI_ERROR (Status);
 127
 128   // Now, the HOB List has been initialized, we can register performance information
 129   PERF_START (NULL, "PEI", NULL, StartTimeStamp);
 130
 131   // SEC phase needs to run library constructors by hand.
 132   ProcessLibraryConstructorList ();
 133
 134   // Build HOBs to pass up our version of stuff the DXE Core needs to save space
 135   BuildPeCoffLoaderHob ();
 136   BuildExtractSectionHob (
 137     &gLzmaCustomDecompressGuid,
 138     LzmaGuidedSectionGetInfo,
 139     LzmaGuidedSectionExtraction
 140     );
 141
 142   // Assume the FV that contains the SEC (our code) also contains a compressed FV.
 143   Status = DecompressFirstFv ();
 144   ASSERT_EFI_ERROR (Status);
 145
 146   // Load the DXE Core and transfer control to it
 147   Status = LoadDxeCoreFromFv (NULL, 0);
 148   ASSERT_EFI_ERROR (Status);
 149 }
 150
 151 VOID
 152 CEntryPoint (
 153   IN  UINTN                     MpId,
 154   IN  UINTN                     UefiMemoryBase,
 155   IN  UINTN                     StacksBase
 156   )
 157 {
 158   UINT64   StartTimeStamp;
 159
 160   // Initialize the platform specific controllers
 161   ArmPlatformInitialize (MpId);
 162
 163   if (PerformanceMeasurementEnabled ()) {
 164     // Initialize the Timer Library to setup the Timer HW controller
 165     TimerConstructor ();
 166     // We cannot call yet the PerformanceLib because the HOB List has not been initialized
 167     StartTimeStamp = GetPerformanceCounter ();
 168   } else {
 169     StartTimeStamp = 0;
 170   }
 171
 172   // Data Cache enabled on Primary core when MMU is enabled.
 173   ArmDisableDataCache ();
 174   // Invalidate Data cache
 175   ArmInvalidateDataCache ();
 176   // Invalidate instruction cache
 177   ArmInvalidateInstructionCache ();
 178   // Enable Instruction Caches on all cores.
 179   ArmEnableInstructionCache ();
 180
 181   PrimaryMain (UefiMemoryBase, StacksBase, StartTimeStamp);
 182
 183   // DXE Core should always load and never return
 184   ASSERT (FALSE);
 185 }