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 EFI_STATUS
  39 GetPlatformPpi (
  40   IN  EFI_GUID  *PpiGuid,
  41   OUT VOID      **Ppi
  42   )
  43 {
  44   UINTN                   PpiListSize;
  45   UINTN                   PpiListCount;
  46   EFI_PEI_PPI_DESCRIPTOR  *PpiList;
  47   UINTN                   Index;
  48
  49   PpiListSize = 0;
  50   ArmPlatformGetPlatformPpiList (&PpiListSize, &PpiList);
  51   PpiListCount = PpiListSize / sizeof(EFI_PEI_PPI_DESCRIPTOR);
  52   for (Index = 0; Index < PpiListCount; Index++, PpiList++) {
  53     if (CompareGuid (PpiList->Guid, PpiGuid) == TRUE) {
  54       *Ppi = PpiList->Ppi;
  55       return EFI_SUCCESS;
  56     }
  57   }
  58
  59   return EFI_NOT_FOUND;
  60 }
  61
  62 VOID
  63 PrePiMain (
  64   IN  UINTN                     UefiMemoryBase,
  65   IN  UINTN                     StacksBase,
  66   IN  UINT64                    StartTimeStamp
  67   )
  68 {
  69   EFI_HOB_HANDOFF_INFO_TABLE*   HobList;
  70   EFI_STATUS                    Status;
  71   CHAR8                         Buffer[100];
  72   UINTN                         CharCount;
  73   UINTN                         StacksSize;
  74
  75   // Initialize the architecture specific bits
  76   ArchInitialize ();
  77
  78   // Declare the PI/UEFI memory region
  79   HobList = HobConstructor (
  80     (VOID*)UefiMemoryBase,
  81     FixedPcdGet32 (PcdSystemMemoryUefiRegionSize),
  82     (VOID*)UefiMemoryBase,
  83     (VOID*)StacksBase  // The top of the UEFI Memory is reserved for the stacks
  84     );
  85   PrePeiSetHobList (HobList);
  86
  87   //
  88   // Ensure that the loaded image is invalidated in the caches, so that any
  89   // modifications we made with the caches and MMU off (such as the applied
  90   // relocations) don't become invisible once we turn them on.
  91   //
  92   InvalidateDataCacheRange((VOID *)(UINTN)PcdGet64 (PcdFdBaseAddress), PcdGet32 (PcdFdSize));
  93
  94   // Initialize MMU and Memory HOBs (Resource Descriptor HOBs)
  95   Status = MemoryPeim (UefiMemoryBase, FixedPcdGet32 (PcdSystemMemoryUefiRegionSize));
  96   ASSERT_EFI_ERROR (Status);
  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   // Create the Stacks HOB (reserve the memory for all stacks)
 105   StacksSize = PcdGet32 (PcdCPUCorePrimaryStackSize);
 106   BuildStackHob (StacksBase, StacksSize);
 107
 108   //TODO: Call CpuPei as a library
 109   BuildCpuHob (PcdGet8 (PcdPrePiCpuMemorySize), PcdGet8 (PcdPrePiCpuIoSize));
 110
 111   // Set the Boot Mode
 112   SetBootMode (ArmPlatformGetBootMode ());
 113
 114   // Initialize Platform HOBs (CpuHob and FvHob)
 115   Status = PlatformPeim ();
 116   ASSERT_EFI_ERROR (Status);
 117
 118   // Now, the HOB List has been initialized, we can register performance information
 119   PERF_START (NULL, "PEI", NULL, StartTimeStamp);
 120
 121   // SEC phase needs to run library constructors by hand.
 122   ProcessLibraryConstructorList ();
 123
 124   // Build HOBs to pass up our version of stuff the DXE Core needs to save space
 125   BuildPeCoffLoaderHob ();
 126   BuildExtractSectionHob (
 127     &gLzmaCustomDecompressGuid,
 128     LzmaGuidedSectionGetInfo,
 129     LzmaGuidedSectionExtraction
 130     );
 131
 132   // Assume the FV that contains the SEC (our code) also contains a compressed FV.
 133   Status = DecompressFirstFv ();
 134   ASSERT_EFI_ERROR (Status);
 135
 136   // Load the DXE Core and transfer control to it
 137   Status = LoadDxeCoreFromFv (NULL, 0);
 138   ASSERT_EFI_ERROR (Status);
 139 }
 140
 141 VOID
 142 CEntryPoint (
 143   IN  UINTN                     MpId,
 144   IN  UINTN                     UefiMemoryBase,
 145   IN  UINTN                     StacksBase
 146   )
 147 {
 148   UINT64   StartTimeStamp;
 149
 150   // Initialize the platform specific controllers
 151   ArmPlatformInitialize (MpId);
 152
 153   if (PerformanceMeasurementEnabled ()) {
 154     // Initialize the Timer Library to setup the Timer HW controller
 155     TimerConstructor ();
 156     // We cannot call yet the PerformanceLib because the HOB List has not been initialized
 157     StartTimeStamp = GetPerformanceCounter ();
 158   } else {
 159     StartTimeStamp = 0;
 160   }
 161
 162   // Data Cache enabled on Primary core when MMU is enabled.
 163   ArmDisableDataCache ();
 164   // Invalidate instruction cache
 165   ArmInvalidateInstructionCache ();
 166   // Enable Instruction Caches on all cores.
 167   ArmEnableInstructionCache ();
 168
 169   PrePiMain (UefiMemoryBase, StacksBase, StartTimeStamp);
 170
 171   // DXE Core should always load and never return
 172   ASSERT (FALSE);
 173 }