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() (((UINT32)FixedPcdGet32 (PcdFdBaseAddress) > mSystemMemoryEnd) || \
  33                   ((FixedPcdGet32 (PcdFdBaseAddress) + FixedPcdGet32 (PcdFdSize)) < FixedPcdGet64 (PcdSystemMemoryBase)))
  34
  35 EFI_STATUS
  36 EFIAPI
  37 ExtractGuidedSectionLibConstructor (
  38   VOID
  39   );
  40
  41 EFI_STATUS
  42 EFIAPI
  43 LzmaDecompressLibConstructor (
  44   VOID
  45   );
  46
  47 EFI_STATUS
  48 GetPlatformPpi (
  49   IN  EFI_GUID  *PpiGuid,
  50   OUT VOID      **Ppi
  51   )
  52 {
  53   UINTN                   PpiListSize;
  54   UINTN                   PpiListCount;
  55   EFI_PEI_PPI_DESCRIPTOR  *PpiList;
  56   UINTN                   Index;
  57
  58   PpiListSize = 0;
  59   ArmPlatformGetPlatformPpiList (&PpiListSize, &PpiList);
  60   PpiListCount = PpiListSize / sizeof(EFI_PEI_PPI_DESCRIPTOR);
  61   for (Index = 0; Index < PpiListCount; Index++, PpiList++) {
  62     if (CompareGuid (PpiList->Guid, PpiGuid) == TRUE) {
  63       *Ppi = PpiList->Ppi;
  64       return EFI_SUCCESS;
  65     }
  66   }
  67
  68   return EFI_NOT_FOUND;
  69 }
  70
  71 VOID
  72 PrePiMain (
  73   IN  UINTN                     UefiMemoryBase,
  74   IN  UINTN                     StacksBase,
  75   IN  UINT64                    StartTimeStamp
  76   )
  77 {
  78   EFI_HOB_HANDOFF_INFO_TABLE*   HobList;
  79   ARM_MP_CORE_INFO_PPI*         ArmMpCoreInfoPpi;
  80   UINTN                         ArmCoreCount;
  81   ARM_CORE_INFO*                ArmCoreInfoTable;
  82   EFI_STATUS                    Status;
  83   CHAR8                         Buffer[100];
  84   UINTN                         CharCount;
  85   UINTN                         StacksSize;
  86
  87   // If ensure the FD is either part of the System Memory or totally outside of the System Memory (XIP)
  88   ASSERT (IS_XIP() ||
  89           ((FixedPcdGet32 (PcdFdBaseAddress) >= FixedPcdGet64 (PcdSystemMemoryBase)) &&
  90            ((UINT32)(FixedPcdGet32 (PcdFdBaseAddress) + FixedPcdGet32 (PcdFdSize)) <= (UINT32)mSystemMemoryEnd)));
  91
  92   // Initialize the architecture specific bits
  93   ArchInitialize ();
  94
  95   // Initialize the Serial Port
  96   SerialPortInitialize ();
  97   CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"UEFI firmware (version %s built at %a on %a)\n\r",
  98     (CHAR16*)PcdGetPtr(PcdFirmwareVersionString), __TIME__, __DATE__);
  99   SerialPortWrite ((UINT8 *) Buffer, CharCount);
 100
 101   // Initialize the Debug Agent for Source Level Debugging
 102   InitializeDebugAgent (DEBUG_AGENT_INIT_POSTMEM_SEC, NULL, NULL);
 103   SaveAndSetDebugTimerInterrupt (TRUE);
 104
 105   // Declare the PI/UEFI memory region
 106   HobList = HobConstructor (
 107     (VOID*)UefiMemoryBase,
 108     FixedPcdGet32 (PcdSystemMemoryUefiRegionSize),
 109     (VOID*)UefiMemoryBase,
 110     (VOID*)StacksBase  // The top of the UEFI Memory is reserved for the stacks
 111     );
 112   PrePeiSetHobList (HobList);
 113
 114   // Initialize MMU and Memory HOBs (Resource Descriptor HOBs)
 115   Status = MemoryPeim (UefiMemoryBase, FixedPcdGet32 (PcdSystemMemoryUefiRegionSize));
 116   ASSERT_EFI_ERROR (Status);
 117
 118   // Create the Stacks HOB (reserve the memory for all stacks)
 119   if (ArmIsMpCore ()) {
 120     StacksSize = PcdGet32 (PcdCPUCorePrimaryStackSize) +
 121                  ((FixedPcdGet32 (PcdCoreCount) - 1) * FixedPcdGet32 (PcdCPUCoreSecondaryStackSize));
 122   } else {
 123     StacksSize = PcdGet32 (PcdCPUCorePrimaryStackSize);
 124   }
 125   BuildStackHob (StacksBase, StacksSize);
 126
 127   //TODO: Call CpuPei as a library
 128   BuildCpuHob (PcdGet8 (PcdPrePiCpuMemorySize), PcdGet8 (PcdPrePiCpuIoSize));
 129
 130   if (ArmIsMpCore ()) {
 131     // Only MP Core platform need to produce gArmMpCoreInfoPpiGuid
 132     Status = GetPlatformPpi (&gArmMpCoreInfoPpiGuid, (VOID**)&ArmMpCoreInfoPpi);
 133
 134     // On MP Core Platform we must implement the ARM MP Core Info PPI (gArmMpCoreInfoPpiGuid)
 135     ASSERT_EFI_ERROR (Status);
 136
 137     // Build the MP Core Info Table
 138     ArmCoreCount = 0;
 139     Status = ArmMpCoreInfoPpi->GetMpCoreInfo (&ArmCoreCount, &ArmCoreInfoTable);
 140     if (!EFI_ERROR(Status) && (ArmCoreCount > 0)) {
 141       // Build MPCore Info HOB
 142       BuildGuidDataHob (&gArmMpCoreInfoGuid, ArmCoreInfoTable, sizeof (ARM_CORE_INFO) * ArmCoreCount);
 143     }
 144   }
 145
 146   // Set the Boot Mode
 147   SetBootMode (ArmPlatformGetBootMode ());
 148
 149   // Initialize Platform HOBs (CpuHob and FvHob)
 150   Status = PlatformPeim ();
 151   ASSERT_EFI_ERROR (Status);
 152
 153   // Now, the HOB List has been initialized, we can register performance information
 154   PERF_START (NULL, "PEI", NULL, StartTimeStamp);
 155
 156   // SEC phase needs to run library constructors by hand.
 157   ExtractGuidedSectionLibConstructor ();
 158   LzmaDecompressLibConstructor ();
 159
 160   // Build HOBs to pass up our version of stuff the DXE Core needs to save space
 161   BuildPeCoffLoaderHob ();
 162   BuildExtractSectionHob (
 163     &gLzmaCustomDecompressGuid,
 164     LzmaGuidedSectionGetInfo,
 165     LzmaGuidedSectionExtraction
 166     );
 167
 168   // Assume the FV that contains the SEC (our code) also contains a compressed FV.
 169   Status = DecompressFirstFv ();
 170   ASSERT_EFI_ERROR (Status);
 171
 172   // Load the DXE Core and transfer control to it
 173   Status = LoadDxeCoreFromFv (NULL, 0);
 174   ASSERT_EFI_ERROR (Status);
 175 }
 176
 177 VOID
 178 CEntryPoint (
 179   IN  UINTN                     MpId,
 180   IN  UINTN                     UefiMemoryBase,
 181   IN  UINTN                     StacksBase
 182   )
 183 {
 184   UINT64   StartTimeStamp;
 185
 186   ASSERT(!ArmIsMpCore() || (PcdGet32 (PcdCoreCount) > 1));
 187
 188   // Initialize the platform specific controllers
 189   ArmPlatformInitialize (MpId);
 190
 191   if (ArmPlatformIsPrimaryCore (MpId) && PerformanceMeasurementEnabled ()) {
 192     // Initialize the Timer Library to setup the Timer HW controller
 193     TimerConstructor ();
 194     // We cannot call yet the PerformanceLib because the HOB List has not been initialized
 195     StartTimeStamp = GetPerformanceCounter ();
 196   } else {
 197     StartTimeStamp = 0;
 198   }
 199
 200   // Data Cache enabled on Primary core when MMU is enabled.
 201   ArmDisableDataCache ();
 202   // Invalidate Data cache
 203   ArmInvalidateDataCache ();
 204   // Invalidate instruction cache
 205   ArmInvalidateInstructionCache ();
 206   // Enable Instruction Caches on all cores.
 207   ArmEnableInstructionCache ();
 208
 209   // Define the Global Variable region when we are not running in XIP
 210   if (!IS_XIP()) {
 211     if (ArmPlatformIsPrimaryCore (MpId)) {
 212       if (ArmIsMpCore()) {
 213         // Signal the Global Variable Region is defined (event: ARM_CPU_EVENT_DEFAULT)
 214         ArmCallSEV ();
 215       }
 216     } else {
 217       // Wait the Primay core has defined the address of the Global Variable region (event: ARM_CPU_EVENT_DEFAULT)
 218       ArmCallWFE ();
 219     }
 220   }
 221
 222   // If not primary Jump to Secondary Main
 223   if (ArmPlatformIsPrimaryCore (MpId)) {
 224     // Goto primary Main.
 225     PrimaryMain (UefiMemoryBase, StacksBase, StartTimeStamp);
 226   } else {
 227     SecondaryMain (MpId);
 228   }
 229
 230   // DXE Core should always load and never return
 231   ASSERT (FALSE);
 232 }
 233