1 /** @file 2 3 Copyright (c) 2014 - 2015, Intel Corporation. All rights reserved.<BR> 4 This program and the accompanying materials 5 are licensed and made available under the terms and conditions of the BSD License 6 which accompanies this distribution. The full text of the license may be found at 7 http://opensource.org/licenses/bsd-license.php. 8 9 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 10 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 11 12 **/ 13 14 #include <PiPei.h> 15 #include <Library/BaseLib.h> 16 #include <Library/BaseMemoryLib.h> 17 #include <Library/MemoryAllocationLib.h> 18 #include <Library/DebugLib.h> 19 #include <Library/PcdLib.h> 20 #include <Library/HobLib.h> 21 #include <Library/PeiServicesLib.h> 22 #include <Library/FspCommonLib.h> 23 #include <Guid/GuidHobFsp.h> 24 #include <FspGlobalData.h> 25 #include <FspApi.h> 26 27 /** 28 Get system memory from HOB. 29 30 @param[in,out] LowMemoryLength less than 4G memory length 31 @param[in,out] HighMemoryLength greater than 4G memory length 32 **/ 33 VOID 34 EFIAPI 35 FspGetSystemMemorySize ( 36 IN OUT UINT64 *LowMemoryLength, 37 IN OUT UINT64 *HighMemoryLength 38 ) 39 { 40 EFI_PEI_HOB_POINTERS Hob; 41 42 *HighMemoryLength = 0; 43 *LowMemoryLength = SIZE_1MB; 44 // 45 // Get the HOB list for processing 46 // 47 Hob.Raw = GetHobList (); 48 49 // 50 // Collect memory ranges 51 // 52 while (!END_OF_HOB_LIST (Hob)) { 53 if (Hob.Header->HobType == EFI_HOB_TYPE_RESOURCE_DESCRIPTOR) { 54 if (Hob.ResourceDescriptor->ResourceType == EFI_RESOURCE_SYSTEM_MEMORY) { 55 // 56 // Need memory above 1MB to be collected here 57 // 58 if (Hob.ResourceDescriptor->PhysicalStart >= BASE_1MB && 59 Hob.ResourceDescriptor->PhysicalStart < (EFI_PHYSICAL_ADDRESS) BASE_4GB) { 60 *LowMemoryLength += (UINT64) (Hob.ResourceDescriptor->ResourceLength); 61 } else if (Hob.ResourceDescriptor->PhysicalStart >= (EFI_PHYSICAL_ADDRESS) BASE_4GB) { 62 *HighMemoryLength += (UINT64) (Hob.ResourceDescriptor->ResourceLength); 63 } 64 } 65 } 66 Hob.Raw = GET_NEXT_HOB (Hob); 67 } 68 } 69 70 /** 71 Migrate BootLoader data before destroying CAR. 72 73 **/ 74 VOID 75 EFIAPI 76 FspMigrateTemporaryMemory ( 77 VOID 78 ) 79 { 80 FSP_INIT_RT_COMMON_BUFFER *FspInitRtBuffer; 81 UINT32 BootLoaderTempRamStart; 82 UINT32 BootLoaderTempRamEnd; 83 UINT32 BootLoaderTempRamSize; 84 UINT32 OffsetGap; 85 UINT32 FspParamPtr; 86 FSP_INIT_PARAMS *FspInitParams; 87 UINT32 *NewStackTop; 88 VOID *BootLoaderTempRamHob; 89 UINT32 UpdDataRgnPtr; 90 UINT32 MemoryInitUpdPtr; 91 UINT32 SiliconInitUpdPtr; 92 VOID *PlatformDataPtr; 93 UINT8 ApiMode; 94 95 ApiMode = GetFspApiCallingMode (); 96 97 // 98 // Get the temporary memory range used by the BootLoader 99 // 100 BootLoaderTempRamStart = PcdGet32(PcdTemporaryRamBase); 101 BootLoaderTempRamSize = PcdGet32(PcdTemporaryRamSize) - PcdGet32(PcdFspTemporaryRamSize); 102 BootLoaderTempRamEnd = BootLoaderTempRamStart + BootLoaderTempRamSize; 103 104 // 105 // Build a Boot Loader Temporary Memory GUID HOB 106 // 107 if (ApiMode == 0) { 108 BootLoaderTempRamHob = BuildGuidHob (&gFspBootLoaderTemporaryMemoryGuid, BootLoaderTempRamSize); 109 } else { 110 BootLoaderTempRamHob = (VOID *)AllocatePages (EFI_SIZE_TO_PAGES (BootLoaderTempRamSize)); 111 } 112 ASSERT(BootLoaderTempRamHob != NULL); 113 114 CopyMem (BootLoaderTempRamHob, (VOID *)BootLoaderTempRamStart, BootLoaderTempRamSize); 115 OffsetGap = (UINT32)BootLoaderTempRamHob - BootLoaderTempRamStart; 116 117 // 118 // Set a new stack frame for the continuation function 119 // 120 if (ApiMode == 0) { 121 FspInitParams = (FSP_INIT_PARAMS *)GetFspApiParameter (); 122 FspInitRtBuffer = (FSP_INIT_RT_COMMON_BUFFER *)FspInitParams->RtBufferPtr; 123 NewStackTop = (UINT32 *)FspInitRtBuffer->StackTop - 1; 124 SetFspCoreStackPointer (NewStackTop); 125 } 126 127 // 128 // Fix the FspInit Parameter Pointers to the new location. 129 // 130 FspParamPtr = GetFspApiParameter (); 131 if (FspParamPtr >= BootLoaderTempRamStart && FspParamPtr < BootLoaderTempRamEnd) { 132 SetFspApiParameter(FspParamPtr + OffsetGap); 133 } 134 135 FspInitParams = (FSP_INIT_PARAMS *)GetFspApiParameter (); 136 if ((UINT32)(FspInitParams->RtBufferPtr) >= BootLoaderTempRamStart && 137 (UINT32)(FspInitParams->RtBufferPtr) < BootLoaderTempRamEnd) { 138 FspInitParams->RtBufferPtr = (VOID *)((UINT32)(FspInitParams->RtBufferPtr) + OffsetGap); 139 } 140 141 if ((UINT32)(FspInitParams->NvsBufferPtr) >= BootLoaderTempRamStart && 142 (UINT32)(FspInitParams->NvsBufferPtr) < BootLoaderTempRamEnd) { 143 FspInitParams->NvsBufferPtr = (VOID *)((UINT32)(FspInitParams->NvsBufferPtr) + OffsetGap); 144 } 145 146 if ((UINT32)(((FSP_INIT_RT_COMMON_BUFFER *)(FspInitParams->RtBufferPtr))->UpdDataRgnPtr) >= BootLoaderTempRamStart && 147 (UINT32)(((FSP_INIT_RT_COMMON_BUFFER *)(FspInitParams->RtBufferPtr))->UpdDataRgnPtr) < BootLoaderTempRamEnd) { 148 ((FSP_INIT_RT_COMMON_BUFFER *)(FspInitParams->RtBufferPtr))->UpdDataRgnPtr = \ 149 (VOID *)((UINT32)(((FSP_INIT_RT_COMMON_BUFFER *)(FspInitParams->RtBufferPtr))->UpdDataRgnPtr) + OffsetGap); 150 } 151 152 // 153 // Update UPD pointer in FSP Global Data 154 // 155 if (ApiMode == 0) { 156 UpdDataRgnPtr = (UINT32)((UINT32 *)GetFspUpdDataPointer ()); 157 if (UpdDataRgnPtr >= BootLoaderTempRamStart && UpdDataRgnPtr < BootLoaderTempRamEnd) { 158 MemoryInitUpdPtr = (UINT32)((UINT32 *)GetFspMemoryInitUpdDataPointer ()); 159 SiliconInitUpdPtr = (UINT32)((UINT32 *)GetFspSiliconInitUpdDataPointer ()); 160 SetFspUpdDataPointer ((VOID *)(UpdDataRgnPtr + OffsetGap)); 161 SetFspMemoryInitUpdDataPointer ((VOID *)(MemoryInitUpdPtr + OffsetGap)); 162 SetFspSiliconInitUpdDataPointer ((VOID *)(SiliconInitUpdPtr + OffsetGap)); 163 } 164 } else { 165 MemoryInitUpdPtr = (UINT32)((UINT32 *)GetFspMemoryInitUpdDataPointer ()); 166 if (MemoryInitUpdPtr >= BootLoaderTempRamStart && MemoryInitUpdPtr < BootLoaderTempRamEnd) { 167 SetFspMemoryInitUpdDataPointer ((VOID *)(MemoryInitUpdPtr + OffsetGap)); 168 } 169 } 170 171 // 172 // Update Platform data pointer in FSP Global Data 173 // 174 PlatformDataPtr = GetFspPlatformDataPointer (); 175 if (((UINT32)PlatformDataPtr >= BootLoaderTempRamStart) && 176 ((UINT32)PlatformDataPtr < BootLoaderTempRamEnd)) { 177 SetFspPlatformDataPointer ((UINT8 *)PlatformDataPtr + OffsetGap); 178 } 179 } 180
