IntelFspPkg/Library/BaseFspPlatformLib/FspPlatformMemory.c

   1 /** @file
   2
   3   Copyright (c) 2014 - 2015, Intel Corporation. All rights reserved.<BR>
   4   SPDX-License-Identifier: BSD-2-Clause-Patent
   5
   6 **/
   7
   8 #include <PiPei.h>
   9 #include <Library/BaseLib.h>
  10 #include <Library/BaseMemoryLib.h>
  11 #include <Library/MemoryAllocationLib.h>
  12 #include <Library/DebugLib.h>
  13 #include <Library/PcdLib.h>
  14 #include <Library/HobLib.h>
  15 #include <Library/PeiServicesLib.h>
  16 #include <Library/FspCommonLib.h>
  17 #include <Guid/GuidHobFsp.h>
  18 #include <FspGlobalData.h>
  19 #include <FspApi.h>
  20
  21 /**
  22   Get system memory from HOB.
  23
  24   @param[in,out] LowMemoryLength   less than 4G memory length
  25   @param[in,out] HighMemoryLength  greater than 4G memory length
  26 **/
  27 VOID
  28 EFIAPI
  29 FspGetSystemMemorySize (
  30   IN OUT UINT64              *LowMemoryLength,
  31   IN OUT UINT64              *HighMemoryLength
  32   )
  33 {
  34   EFI_PEI_HOB_POINTERS    Hob;
  35
  36   *HighMemoryLength = 0;
  37   *LowMemoryLength  = SIZE_1MB;
  38   //
  39   // Get the HOB list for processing
  40   //
  41   Hob.Raw = GetHobList ();
  42
  43   //
  44   // Collect memory ranges
  45   //
  46   while (!END_OF_HOB_LIST (Hob)) {
  47     if (Hob.Header->HobType == EFI_HOB_TYPE_RESOURCE_DESCRIPTOR) {
  48       if (Hob.ResourceDescriptor->ResourceType == EFI_RESOURCE_SYSTEM_MEMORY) {
  49         //
  50         // Need memory above 1MB to be collected here
  51         //
  52         if (Hob.ResourceDescriptor->PhysicalStart >= BASE_1MB &&
  53             Hob.ResourceDescriptor->PhysicalStart < (EFI_PHYSICAL_ADDRESS) BASE_4GB) {
  54           *LowMemoryLength += (UINT64) (Hob.ResourceDescriptor->ResourceLength);
  55         } else if (Hob.ResourceDescriptor->PhysicalStart >= (EFI_PHYSICAL_ADDRESS) BASE_4GB) {
  56           *HighMemoryLength += (UINT64) (Hob.ResourceDescriptor->ResourceLength);
  57         }
  58       }
  59     }
  60     Hob.Raw = GET_NEXT_HOB (Hob);
  61   }
  62 }
  63
  64 /**
  65   Migrate BootLoader data before destroying CAR.
  66
  67 **/
  68 VOID
  69 EFIAPI
  70 FspMigrateTemporaryMemory (
  71   VOID
  72  )
  73 {
  74   FSP_INIT_RT_COMMON_BUFFER *FspInitRtBuffer;
  75   UINT32                    BootLoaderTempRamStart;
  76   UINT32                    BootLoaderTempRamEnd;
  77   UINT32                    BootLoaderTempRamSize;
  78   UINT32                    OffsetGap;
  79   UINT32                    FspParamPtr;
  80   FSP_INIT_PARAMS           *FspInitParams;
  81   UINT32                    *NewStackTop;
  82   VOID                      *BootLoaderTempRamHob;
  83   UINT32                    UpdDataRgnPtr;
  84   UINT32                    MemoryInitUpdPtr;
  85   UINT32                    SiliconInitUpdPtr;
  86   VOID                      *PlatformDataPtr;
  87   UINT8                      ApiMode;
  88
  89   ApiMode = GetFspApiCallingMode ();
  90
  91   //
  92   // Get the temporary memory range used by the BootLoader
  93   //
  94   BootLoaderTempRamStart = PcdGet32(PcdTemporaryRamBase);
  95   BootLoaderTempRamSize  = PcdGet32(PcdTemporaryRamSize) - PcdGet32(PcdFspTemporaryRamSize);
  96   BootLoaderTempRamEnd   = BootLoaderTempRamStart +  BootLoaderTempRamSize;
  97
  98   //
  99   // Build a Boot Loader Temporary Memory GUID HOB
 100   //
 101   if (ApiMode == 0) {
 102     BootLoaderTempRamHob = BuildGuidHob (&gFspBootLoaderTemporaryMemoryGuid, BootLoaderTempRamSize);
 103   } else {
 104     BootLoaderTempRamHob = (VOID *)AllocatePages (EFI_SIZE_TO_PAGES (BootLoaderTempRamSize));
 105   }
 106   ASSERT(BootLoaderTempRamHob != NULL);
 107
 108   CopyMem (BootLoaderTempRamHob, (VOID *)BootLoaderTempRamStart, BootLoaderTempRamSize);
 109   OffsetGap = (UINT32)BootLoaderTempRamHob - BootLoaderTempRamStart;
 110
 111   //
 112   // Set a new stack frame for the continuation function
 113   //
 114   if (ApiMode == 0) {
 115     FspInitParams   = (FSP_INIT_PARAMS *)GetFspApiParameter ();
 116     FspInitRtBuffer = (FSP_INIT_RT_COMMON_BUFFER *)FspInitParams->RtBufferPtr;
 117     NewStackTop     = (UINT32 *)FspInitRtBuffer->StackTop - 1;
 118     SetFspCoreStackPointer (NewStackTop);
 119   }
 120
 121   //
 122   // Fix the FspInit Parameter Pointers to the new location.
 123   //
 124   FspParamPtr = GetFspApiParameter ();
 125   if (FspParamPtr >= BootLoaderTempRamStart && FspParamPtr < BootLoaderTempRamEnd) {
 126     SetFspApiParameter(FspParamPtr + OffsetGap);
 127   }
 128
 129   FspInitParams = (FSP_INIT_PARAMS *)GetFspApiParameter ();
 130   if ((UINT32)(FspInitParams->RtBufferPtr) >= BootLoaderTempRamStart &&
 131       (UINT32)(FspInitParams->RtBufferPtr) <  BootLoaderTempRamEnd) {
 132     FspInitParams->RtBufferPtr = (VOID *)((UINT32)(FspInitParams->RtBufferPtr) + OffsetGap);
 133   }
 134
 135   if ((UINT32)(FspInitParams->NvsBufferPtr) >= BootLoaderTempRamStart &&
 136       (UINT32)(FspInitParams->NvsBufferPtr) <  BootLoaderTempRamEnd) {
 137     FspInitParams->NvsBufferPtr = (VOID *)((UINT32)(FspInitParams->NvsBufferPtr) + OffsetGap);
 138   }
 139
 140   if ((UINT32)(((FSP_INIT_RT_COMMON_BUFFER *)(FspInitParams->RtBufferPtr))->UpdDataRgnPtr) >= BootLoaderTempRamStart &&
 141       (UINT32)(((FSP_INIT_RT_COMMON_BUFFER *)(FspInitParams->RtBufferPtr))->UpdDataRgnPtr) <  BootLoaderTempRamEnd) {
 142     ((FSP_INIT_RT_COMMON_BUFFER *)(FspInitParams->RtBufferPtr))->UpdDataRgnPtr = \
 143            (VOID *)((UINT32)(((FSP_INIT_RT_COMMON_BUFFER *)(FspInitParams->RtBufferPtr))->UpdDataRgnPtr) + OffsetGap);
 144   }
 145
 146   //
 147   // Update UPD pointer in FSP Global Data
 148   //
 149   if (ApiMode == 0) {
 150     UpdDataRgnPtr = (UINT32)((UINT32 *)GetFspUpdDataPointer ());
 151     if (UpdDataRgnPtr >= BootLoaderTempRamStart && UpdDataRgnPtr < BootLoaderTempRamEnd) {
 152       MemoryInitUpdPtr = (UINT32)((UINT32 *)GetFspMemoryInitUpdDataPointer ());
 153       SiliconInitUpdPtr = (UINT32)((UINT32 *)GetFspSiliconInitUpdDataPointer ());
 154       SetFspUpdDataPointer ((VOID *)(UpdDataRgnPtr + OffsetGap));
 155       SetFspMemoryInitUpdDataPointer ((VOID *)(MemoryInitUpdPtr + OffsetGap));
 156       SetFspSiliconInitUpdDataPointer ((VOID *)(SiliconInitUpdPtr + OffsetGap));
 157     }
 158   } else {
 159     MemoryInitUpdPtr = (UINT32)((UINT32 *)GetFspMemoryInitUpdDataPointer ());
 160     if (MemoryInitUpdPtr >= BootLoaderTempRamStart && MemoryInitUpdPtr < BootLoaderTempRamEnd) {
 161       SetFspMemoryInitUpdDataPointer ((VOID *)(MemoryInitUpdPtr + OffsetGap));
 162     }
 163   }
 164
 165   //
 166   // Update Platform data pointer in FSP Global Data
 167   //
 168   PlatformDataPtr = GetFspPlatformDataPointer ();
 169   if (((UINT32)PlatformDataPtr >= BootLoaderTempRamStart) &&
 170       ((UINT32)PlatformDataPtr <  BootLoaderTempRamEnd)) {
 171     SetFspPlatformDataPointer ((UINT8 *)PlatformDataPtr + OffsetGap);
 172   }
 173 }