ArmPlatformPkg/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/DebugAgentLib.h>
  18 #include <Library/PrePiLib.h>
  19 #include <Library/PrintLib.h>
  20 #include <Library/PeCoffGetEntryPointLib.h>
  21 #include <Library/PrePiHobListPointerLib.h>
  22 #include <Library/TimerLib.h>
  23 #include <Library/PerformanceLib.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 #define IS_XIP() (((UINT64)FixedPcdGet64 (PcdFdBaseAddress) > mSystemMemoryEnd) || \
  33                   ((FixedPcdGet64 (PcdFdBaseAddress) + FixedPcdGet32 (PcdFdSize)) < FixedPcdGet64 (PcdSystemMemoryBase)))
  34
  35 UINT64 mSystemMemoryEnd = FixedPcdGet64(PcdSystemMemoryBase) +
  36                           FixedPcdGet64(PcdSystemMemorySize) - 1;
  37
  38 EFI_STATUS
  39 EFIAPI
  40 ExtractGuidedSectionLibConstructor (
  41   VOID
  42   );
  43
  44 EFI_STATUS
  45 EFIAPI
  46 LzmaDecompressLibConstructor (
  47   VOID
  48   );
  49
  50 EFI_STATUS
  51 GetPlatformPpi (
  52   IN  EFI_GUID  *PpiGuid,
  53   OUT VOID      **Ppi
  54   )
  55 {
  56   UINTN                   PpiListSize;
  57   UINTN                   PpiListCount;
  58   EFI_PEI_PPI_DESCRIPTOR  *PpiList;
  59   UINTN                   Index;
  60
  61   PpiListSize = 0;
  62   ArmPlatformGetPlatformPpiList (&PpiListSize, &PpiList);
  63   PpiListCount = PpiListSize / sizeof(EFI_PEI_PPI_DESCRIPTOR);
  64   for (Index = 0; Index < PpiListCount; Index++, PpiList++) {
  65     if (CompareGuid (PpiList->Guid, PpiGuid) == TRUE) {
  66       *Ppi = PpiList->Ppi;
  67       return EFI_SUCCESS;
  68     }
  69   }
  70
  71   return EFI_NOT_FOUND;
  72 }
  73
  74 VOID
  75 PrePiMain (
  76   IN  UINTN                     UefiMemoryBase,
  77   IN  UINTN                     StacksBase,
  78   IN  UINT64                    StartTimeStamp
  79   )
  80 {
  81   EFI_HOB_HANDOFF_INFO_TABLE*   HobList;
  82   ARM_MP_CORE_INFO_PPI*         ArmMpCoreInfoPpi;
  83   UINTN                         ArmCoreCount;
  84   ARM_CORE_INFO*                ArmCoreInfoTable;
  85   EFI_STATUS                    Status;
  86   CHAR8                         Buffer[100];
  87   UINTN                         CharCount;
  88   UINTN                         StacksSize;
  89
  90   // If ensure the FD is either part of the System Memory or totally outside of the System Memory (XIP)
  91   ASSERT (IS_XIP() ||
  92           ((FixedPcdGet64 (PcdFdBaseAddress) >= FixedPcdGet64 (PcdSystemMemoryBase)) &&
  93            ((UINT64)(FixedPcdGet64 (PcdFdBaseAddress) + FixedPcdGet32 (PcdFdSize)) <= (UINT64)mSystemMemoryEnd)));
  94
  95   // Initialize the architecture specific bits
  96   ArchInitialize ();
  97
  98   // Initialize the Serial Port
  99   SerialPortInitialize ();
 100   CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"UEFI firmware (version %s built at %a on %a)\n\r",
 101     (CHAR16*)PcdGetPtr(PcdFirmwareVersionString), __TIME__, __DATE__);
 102   SerialPortWrite ((UINT8 *) Buffer, CharCount);
 103
 104   // Initialize the Debug Agent for Source Level Debugging
 105   InitializeDebugAgent (DEBUG_AGENT_INIT_POSTMEM_SEC, NULL, NULL);
 106   SaveAndSetDebugTimerInterrupt (TRUE);
 107
 108   // Declare the PI/UEFI memory region
 109   HobList = HobConstructor (
 110     (VOID*)UefiMemoryBase,
 111     FixedPcdGet32 (PcdSystemMemoryUefiRegionSize),
 112     (VOID*)UefiMemoryBase,
 113     (VOID*)StacksBase  // The top of the UEFI Memory is reserved for the stacks
 114     );
 115   PrePeiSetHobList (HobList);
 116
 117   // Initialize MMU and Memory HOBs (Resource Descriptor HOBs)
 118   Status = MemoryPeim (UefiMemoryBase, FixedPcdGet32 (PcdSystemMemoryUefiRegionSize));
 119   ASSERT_EFI_ERROR (Status);
 120
 121   // Create the Stacks HOB (reserve the memory for all stacks)
 122   if (ArmIsMpCore ()) {
 123     StacksSize = PcdGet32 (PcdCPUCorePrimaryStackSize) +
 124                  ((FixedPcdGet32 (PcdCoreCount) - 1) * FixedPcdGet32 (PcdCPUCoreSecondaryStackSize));
 125   } else {
 126     StacksSize = PcdGet32 (PcdCPUCorePrimaryStackSize);
 127   }
 128   BuildStackHob (StacksBase, StacksSize);
 129
 130   //TODO: Call CpuPei as a library
 131   BuildCpuHob (PcdGet8 (PcdPrePiCpuMemorySize), PcdGet8 (PcdPrePiCpuIoSize));
 132
 133   if (ArmIsMpCore ()) {
 134     // Only MP Core platform need to produce gArmMpCoreInfoPpiGuid
 135     Status = GetPlatformPpi (&gArmMpCoreInfoPpiGuid, (VOID**)&ArmMpCoreInfoPpi);
 136
 137     // On MP Core Platform we must implement the ARM MP Core Info PPI (gArmMpCoreInfoPpiGuid)
 138     ASSERT_EFI_ERROR (Status);
 139
 140     // Build the MP Core Info Table
 141     ArmCoreCount = 0;
 142     Status = ArmMpCoreInfoPpi->GetMpCoreInfo (&ArmCoreCount, &ArmCoreInfoTable);
 143     if (!EFI_ERROR(Status) && (ArmCoreCount > 0)) {
 144       // Build MPCore Info HOB
 145       BuildGuidDataHob (&gArmMpCoreInfoGuid, ArmCoreInfoTable, sizeof (ARM_CORE_INFO) * ArmCoreCount);
 146     }
 147   }
 148
 149   // Set the Boot Mode
 150   SetBootMode (ArmPlatformGetBootMode ());
 151
 152   // Initialize Platform HOBs (CpuHob and FvHob)
 153   Status = PlatformPeim ();
 154   ASSERT_EFI_ERROR (Status);
 155
 156   // Now, the HOB List has been initialized, we can register performance information
 157   PERF_START (NULL, "PEI", NULL, StartTimeStamp);
 158
 159   // SEC phase needs to run library constructors by hand.
 160   ExtractGuidedSectionLibConstructor ();
 161   LzmaDecompressLibConstructor ();
 162
 163   // Build HOBs to pass up our version of stuff the DXE Core needs to save space
 164   BuildPeCoffLoaderHob ();
 165   BuildExtractSectionHob (
 166     &gLzmaCustomDecompressGuid,
 167     LzmaGuidedSectionGetInfo,
 168     LzmaGuidedSectionExtraction
 169     );
 170
 171   // Assume the FV that contains the SEC (our code) also contains a compressed FV.
 172   Status = DecompressFirstFv ();
 173   ASSERT_EFI_ERROR (Status);
 174
 175   // Load the DXE Core and transfer control to it
 176   Status = LoadDxeCoreFromFv (NULL, 0);
 177   ASSERT_EFI_ERROR (Status);
 178 }
 179
 180 VOID
 181 CEntryPoint (
 182   IN  UINTN                     MpId,
 183   IN  UINTN                     UefiMemoryBase,
 184   IN  UINTN                     StacksBase
 185   )
 186 {
 187   UINT64   StartTimeStamp;
 188
 189   // Initialize the platform specific controllers
 190   ArmPlatformInitialize (MpId);
 191
 192   if (ArmPlatformIsPrimaryCore (MpId) && PerformanceMeasurementEnabled ()) {
 193     // Initialize the Timer Library to setup the Timer HW controller
 194     TimerConstructor ();
 195     // We cannot call yet the PerformanceLib because the HOB List has not been initialized
 196     StartTimeStamp = GetPerformanceCounter ();
 197   } else {
 198     StartTimeStamp = 0;
 199   }
 200
 201   // Data Cache enabled on Primary core when MMU is enabled.
 202   ArmDisableDataCache ();
 203   // Invalidate Data cache
 204   ArmInvalidateDataCache ();
 205   // Invalidate instruction cache
 206   ArmInvalidateInstructionCache ();
 207   // Enable Instruction Caches on all cores.
 208   ArmEnableInstructionCache ();
 209
 210   // Define the Global Variable region when we are not running in XIP
 211   if (!IS_XIP()) {
 212     if (ArmPlatformIsPrimaryCore (MpId)) {
 213       if (ArmIsMpCore()) {
 214         // Signal the Global Variable Region is defined (event: ARM_CPU_EVENT_DEFAULT)
 215         ArmCallSEV ();
 216       }
 217     } else {
 218       // Wait the Primay core has defined the address of the Global Variable region (event: ARM_CPU_EVENT_DEFAULT)
 219       ArmCallWFE ();
 220     }
 221   }
 222
 223   // If not primary Jump to Secondary Main
 224   if (ArmPlatformIsPrimaryCore (MpId)) {
 225     // Goto primary Main.
 226     PrimaryMain (UefiMemoryBase, StacksBase, StartTimeStamp);
 227   } else {
 228     SecondaryMain (MpId);
 229   }
 230
 231   // DXE Core should always load and never return
 232   ASSERT (FALSE);
 233 }
 234