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 #include <Guid/ArmGlobalVariableHob.h>
  29
  30 #include "PrePi.h"
  31 #include "LzmaDecompress.h"
  32
  33 // Not used when PrePi in run in XIP mode
  34 UINTN mGlobalVariableBase = 0;
  35
  36 EFI_STATUS
  37 EFIAPI
  38 ExtractGuidedSectionLibConstructor (
  39   VOID
  40   );
  41
  42 EFI_STATUS
  43 EFIAPI
  44 LzmaDecompressLibConstructor (
  45   VOID
  46   );
  47
  48 VOID
  49 EFIAPI
  50 BuildGlobalVariableHob (
  51   IN EFI_PHYSICAL_ADDRESS         GlobalVariableBase,
  52   IN UINT32                       GlobalVariableSize
  53   )
  54 {
  55   ARM_HOB_GLOBAL_VARIABLE  *Hob;
  56
  57   Hob = CreateHob (EFI_HOB_TYPE_GUID_EXTENSION, sizeof (ARM_HOB_GLOBAL_VARIABLE));
  58   ASSERT(Hob != NULL);
  59
  60   CopyGuid (&(Hob->Header.Name), &gArmGlobalVariableGuid);
  61   Hob->GlobalVariableBase = GlobalVariableBase;
  62   Hob->GlobalVariableSize = GlobalVariableSize;
  63 }
  64
  65 EFI_STATUS
  66 GetPlatformPpi (
  67   IN  EFI_GUID  *PpiGuid,
  68   OUT VOID      **Ppi
  69   )
  70 {
  71   UINTN                   PpiListSize;
  72   UINTN                   PpiListCount;
  73   EFI_PEI_PPI_DESCRIPTOR  *PpiList;
  74   UINTN                   Index;
  75
  76   PpiListSize = 0;
  77   ArmPlatformGetPlatformPpiList (&PpiListSize, &PpiList);
  78   PpiListCount = PpiListSize / sizeof(EFI_PEI_PPI_DESCRIPTOR);
  79   for (Index = 0; Index < PpiListCount; Index++, PpiList++) {
  80     if (CompareGuid (PpiList->Guid, PpiGuid) == TRUE) {
  81       *Ppi = PpiList->Ppi;
  82       return EFI_SUCCESS;
  83     }
  84   }
  85
  86   return EFI_NOT_FOUND;
  87 }
  88
  89 VOID
  90 PrePiMain (
  91   IN  UINTN                     UefiMemoryBase,
  92   IN  UINTN                     StacksBase,
  93   IN  UINTN                     GlobalVariableBase,
  94   IN  UINT64                    StartTimeStamp
  95   )
  96 {
  97   EFI_HOB_HANDOFF_INFO_TABLE*   HobList;
  98   EFI_STATUS                    Status;
  99   CHAR8                         Buffer[100];
 100   UINTN                         CharCount;
 101   UINTN                         StacksSize;
 102
 103   // Initialize the architecture specific bits
 104   ArchInitialize ();
 105
 106   // Declare the PI/UEFI memory region
 107   HobList = HobConstructor (
 108     (VOID*)UefiMemoryBase,
 109     FixedPcdGet32 (PcdSystemMemoryUefiRegionSize),
 110     (VOID*)UefiMemoryBase,
 111     (VOID*)StacksBase  // The top of the UEFI Memory is reserved for the stacks
 112     );
 113   PrePeiSetHobList (HobList);
 114
 115   //
 116   // Ensure that the loaded image is invalidated in the caches, so that any
 117   // modifications we made with the caches and MMU off (such as the applied
 118   // relocations) don't become invisible once we turn them on.
 119   //
 120   InvalidateDataCacheRange((VOID *)(UINTN)PcdGet64 (PcdFdBaseAddress), PcdGet32 (PcdFdSize));
 121
 122   // Initialize MMU and Memory HOBs (Resource Descriptor HOBs)
 123   Status = MemoryPeim (UefiMemoryBase, FixedPcdGet32 (PcdSystemMemoryUefiRegionSize));
 124   ASSERT_EFI_ERROR (Status);
 125
 126   // Initialize the Serial Port
 127   SerialPortInitialize ();
 128   CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"UEFI firmware (version %s built at %a on %a)\n\r",
 129     (CHAR16*)PcdGetPtr(PcdFirmwareVersionString), __TIME__, __DATE__);
 130   SerialPortWrite ((UINT8 *) Buffer, CharCount);
 131
 132   // Create the Stacks HOB (reserve the memory for all stacks)
 133   StacksSize = PcdGet32 (PcdCPUCorePrimaryStackSize);
 134   BuildStackHob (StacksBase, StacksSize);
 135
 136   // Declare the Global Variable HOB
 137   BuildGlobalVariableHob (GlobalVariableBase, FixedPcdGet32 (PcdPeiGlobalVariableSize));
 138
 139   //TODO: Call CpuPei as a library
 140   BuildCpuHob (PcdGet8 (PcdPrePiCpuMemorySize), PcdGet8 (PcdPrePiCpuIoSize));
 141
 142   // Set the Boot Mode
 143   SetBootMode (ArmPlatformGetBootMode ());
 144
 145   // Initialize Platform HOBs (CpuHob and FvHob)
 146   Status = PlatformPeim ();
 147   ASSERT_EFI_ERROR (Status);
 148
 149   // Now, the HOB List has been initialized, we can register performance information
 150   PERF_START (NULL, "PEI", NULL, StartTimeStamp);
 151
 152   // SEC phase needs to run library constructors by hand.
 153   ExtractGuidedSectionLibConstructor ();
 154   LzmaDecompressLibConstructor ();
 155
 156   // Build HOBs to pass up our version of stuff the DXE Core needs to save space
 157   BuildPeCoffLoaderHob ();
 158   BuildExtractSectionHob (
 159     &gLzmaCustomDecompressGuid,
 160     LzmaGuidedSectionGetInfo,
 161     LzmaGuidedSectionExtraction
 162     );
 163
 164   // Assume the FV that contains the SEC (our code) also contains a compressed FV.
 165   Status = DecompressFirstFv ();
 166   ASSERT_EFI_ERROR (Status);
 167
 168   // Load the DXE Core and transfer control to it
 169   Status = LoadDxeCoreFromFv (NULL, 0);
 170   ASSERT_EFI_ERROR (Status);
 171 }
 172
 173 VOID
 174 CEntryPoint (
 175   IN  UINTN                     MpId,
 176   IN  UINTN                     UefiMemoryBase,
 177   IN  UINTN                     StacksBase,
 178   IN  UINTN                     GlobalVariableBase
 179   )
 180 {
 181   UINT64   StartTimeStamp;
 182
 183   // Initialize the platform specific controllers
 184   ArmPlatformInitialize (MpId);
 185
 186   if (PerformanceMeasurementEnabled ()) {
 187     // Initialize the Timer Library to setup the Timer HW controller
 188     TimerConstructor ();
 189     // We cannot call yet the PerformanceLib because the HOB List has not been initialized
 190     StartTimeStamp = GetPerformanceCounter ();
 191   } else {
 192     StartTimeStamp = 0;
 193   }
 194
 195   // Data Cache enabled on Primary core when MMU is enabled.
 196   ArmDisableDataCache ();
 197   // Invalidate Data cache
 198   ArmInvalidateDataCache ();
 199   // Invalidate instruction cache
 200   ArmInvalidateInstructionCache ();
 201   // Enable Instruction Caches on all cores.
 202   ArmEnableInstructionCache ();
 203
 204   // Define the Global Variable region
 205   mGlobalVariableBase = GlobalVariableBase;
 206
 207   PrePiMain (UefiMemoryBase, StacksBase, GlobalVariableBase, StartTimeStamp);
 208
 209   // DXE Core should always load and never return
 210   ASSERT (FALSE);
 211 }