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