CorebootModulePkg/CbSupportPei/CbSupportPei.c

   1 /** @file
   2   This PEIM will parse coreboot table in memory and report resource information into pei core.
   3   This file contains the main entrypoint of the PEIM.
   4
   5 Copyright (c) 2014 - 2016, Intel Corporation. All rights reserved.<BR>
   6 This program and the accompanying materials
   7 are licensed and made available under the terms and conditions of the BSD License
   8 which accompanies this distribution.  The full text of the license may be found at
   9 http://opensource.org/licenses/bsd-license.php
  10
  11 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  12 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  13
  14 **/
  15 #include "CbSupportPei.h"
  16
  17 #define LEGACY_8259_MASK_REGISTER_MASTER  0x21
  18 #define LEGACY_8259_MASK_REGISTER_SLAVE   0xA1
  19
  20 EFI_MEMORY_TYPE_INFORMATION mDefaultMemoryTypeInformation[] = {
  21   { EfiACPIReclaimMemory,   FixedPcdGet32 (PcdMemoryTypeEfiACPIReclaimMemory) },
  22   { EfiACPIMemoryNVS,       FixedPcdGet32 (PcdMemoryTypeEfiACPIMemoryNVS) },
  23   { EfiReservedMemoryType,  FixedPcdGet32 (PcdMemoryTypeEfiReservedMemoryType) },
  24   { EfiRuntimeServicesData, FixedPcdGet32 (PcdMemoryTypeEfiRuntimeServicesData) },
  25   { EfiRuntimeServicesCode, FixedPcdGet32 (PcdMemoryTypeEfiRuntimeServicesCode) },
  26   { EfiMaxMemoryType,       0     }
  27 };
  28
  29 EFI_PEI_PPI_DESCRIPTOR   mPpiBootMode[] = {
  30   {
  31     EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST,
  32     &gEfiPeiMasterBootModePpiGuid,
  33     NULL
  34   }
  35 };
  36
  37 /**
  38   Create memory mapped io resource hob.
  39
  40   @param  MmioBase    Base address of the memory mapped io range
  41   @param  MmioSize    Length of the memory mapped io range
  42
  43 **/
  44 VOID
  45 BuildMemoryMappedIoRangeHob (
  46   EFI_PHYSICAL_ADDRESS        MmioBase,
  47   UINT64                      MmioSize
  48   )
  49 {
  50   BuildResourceDescriptorHob (
  51     EFI_RESOURCE_MEMORY_MAPPED_IO,
  52     (EFI_RESOURCE_ATTRIBUTE_PRESENT    |
  53     EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
  54     EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |
  55     EFI_RESOURCE_ATTRIBUTE_TESTED),
  56     MmioBase,
  57     MmioSize
  58     );
  59
  60   BuildMemoryAllocationHob (
  61     MmioBase,
  62     MmioSize,
  63     EfiMemoryMappedIO
  64     );
  65 }
  66
  67 /**
  68   Check the integrity of firmware volume header
  69
  70   @param[in]  FwVolHeader   A pointer to a firmware volume header
  71
  72   @retval     TRUE          The firmware volume is consistent
  73   @retval     FALSE         The firmware volume has corrupted.
  74
  75 **/
  76 STATIC
  77 BOOLEAN
  78 IsFvHeaderValid (
  79   IN EFI_FIRMWARE_VOLUME_HEADER    *FwVolHeader
  80   )
  81 {
  82   UINT16 Checksum;
  83
  84   // Skip nv storage fv
  85   if (CompareMem (&FwVolHeader->FileSystemGuid, &gEfiFirmwareFileSystem2Guid, sizeof(EFI_GUID)) != 0 ) {
  86     return FALSE;
  87   }
  88
  89   if ( (FwVolHeader->Revision != EFI_FVH_REVISION)   ||
  90      (FwVolHeader->Signature != EFI_FVH_SIGNATURE) ||
  91      (FwVolHeader->FvLength == ((UINTN) -1))       ||
  92      ((FwVolHeader->HeaderLength & 0x01 ) !=0) )  {
  93     return FALSE;
  94   }
  95
  96   Checksum = CalculateCheckSum16 ((UINT16 *) FwVolHeader, FwVolHeader->HeaderLength);
  97   if (Checksum != 0) {
  98     DEBUG (( DEBUG_ERROR,
  99               "ERROR - Invalid Firmware Volume Header Checksum, change 0x%04x to 0x%04x\r\n",
 100               FwVolHeader->Checksum,
 101               (UINT16)( Checksum + FwVolHeader->Checksum )));
 102     return FALSE;
 103   }
 104
 105   return TRUE;
 106 }
 107
 108 /**
 109   Install FvInfo PPI and create fv hobs for remained fvs
 110
 111 **/
 112 VOID
 113 CbPeiReportRemainedFvs (
 114   VOID
 115   )
 116 {
 117   UINT8*  TempPtr;
 118   UINT8*  EndPtr;
 119
 120   TempPtr = (UINT8* )(UINTN) PcdGet32 (PcdPayloadFdMemBase);
 121   EndPtr = (UINT8* )(UINTN) (PcdGet32 (PcdPayloadFdMemBase) + PcdGet32 (PcdPayloadFdMemSize));
 122
 123   for (;TempPtr < EndPtr;) {
 124     if (IsFvHeaderValid ((EFI_FIRMWARE_VOLUME_HEADER* )TempPtr)) {
 125       if (TempPtr != (UINT8* )(UINTN) PcdGet32 (PcdPayloadFdMemBase))  {
 126         // Skip the PEI FV
 127         DEBUG((EFI_D_ERROR, "Found one valid fv : 0x%lx.\n", TempPtr, ((EFI_FIRMWARE_VOLUME_HEADER* )TempPtr)->FvLength));
 128
 129         PeiServicesInstallFvInfoPpi (
 130           NULL,
 131           (VOID *) (UINTN) TempPtr,
 132           (UINT32) (UINTN) ((EFI_FIRMWARE_VOLUME_HEADER* )TempPtr)->FvLength,
 133           NULL,
 134           NULL
 135           );
 136         BuildFvHob ((EFI_PHYSICAL_ADDRESS)(UINTN) TempPtr, ((EFI_FIRMWARE_VOLUME_HEADER* )TempPtr)->FvLength);
 137       }
 138     }
 139     TempPtr += ((EFI_FIRMWARE_VOLUME_HEADER* )TempPtr)->FvLength;
 140   }
 141 }
 142
 143 /**
 144   Based on memory base, size and type, build resource descripter HOB.
 145
 146   @param  Base    Memory base address.
 147   @param  Size    Memory size.
 148   @param  Type    Memory type.
 149   @param  Param   A pointer to CB_MEM_INFO.
 150
 151   @retval EFI_SUCCESS if it completed successfully.
 152 **/
 153 EFI_STATUS
 154 CbMemInfoCallback (
 155   UINT64                  Base,
 156   UINT64                  Size,
 157   UINT32                  Type,
 158   VOID                    *Param
 159   )
 160 {
 161   CB_MEM_INFO             *MemInfo;
 162   UINTN                   Attribue;
 163
 164   Attribue = EFI_RESOURCE_ATTRIBUTE_PRESENT |
 165              EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
 166              EFI_RESOURCE_ATTRIBUTE_TESTED |
 167              EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |
 168              EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |
 169              EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |
 170              EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE;
 171
 172   MemInfo = (CB_MEM_INFO *)Param;
 173   if (Base >= 0x100000) {
 174     if (Type == CB_MEM_RAM) {
 175       if (Base < 0x100000000ULL) {
 176         MemInfo->UsableLowMemTop = (UINT32)(Base + Size);
 177       } else {
 178         Attribue &= ~EFI_RESOURCE_ATTRIBUTE_TESTED;
 179       }
 180       BuildResourceDescriptorHob (
 181         EFI_RESOURCE_SYSTEM_MEMORY,
 182         Attribue,
 183         (EFI_PHYSICAL_ADDRESS)Base,
 184         Size
 185         );
 186     } else if (Type == CB_MEM_TABLE) {
 187       BuildResourceDescriptorHob (
 188         EFI_RESOURCE_MEMORY_RESERVED,
 189         Attribue,
 190         (EFI_PHYSICAL_ADDRESS)Base,
 191         Size
 192         );
 193       MemInfo->SystemLowMemTop = ((UINT32)(Base + Size) + 0x0FFFFFFF) & 0xF0000000;
 194     } else if (Type == CB_MEM_RESERVED) {
 195       if ((MemInfo->SystemLowMemTop == 0) || (Base < MemInfo->SystemLowMemTop)) {
 196         BuildResourceDescriptorHob (
 197           EFI_RESOURCE_MEMORY_RESERVED,
 198           Attribue,
 199           (EFI_PHYSICAL_ADDRESS)Base,
 200           Size
 201           );
 202       }
 203     }
 204   }
 205
 206   return EFI_SUCCESS;
 207 }
 208
 209 /**
 210   This is the entrypoint of PEIM
 211
 212   @param  FileHandle  Handle of the file being invoked.
 213   @param  PeiServices Describes the list of possible PEI Services.
 214
 215   @retval EFI_SUCCESS if it completed successfully.
 216 **/
 217 EFI_STATUS
 218 EFIAPI
 219 CbPeiEntryPoint (
 220   IN       EFI_PEI_FILE_HANDLE  FileHandle,
 221   IN CONST EFI_PEI_SERVICES     **PeiServices
 222   )
 223 {
 224   EFI_STATUS           Status;
 225   UINT64               LowMemorySize;
 226   UINT64               PeiMemSize = SIZE_64MB;   // 64 MB
 227   EFI_PHYSICAL_ADDRESS PeiMemBase = 0;
 228   UINT32               RegEax;
 229   UINT8                PhysicalAddressBits;
 230   VOID*                pCbHeader;
 231   VOID*                pAcpiTable;
 232   UINT32               AcpiTableSize;
 233   VOID*                pSmbiosTable;
 234   UINT32               SmbiosTableSize;
 235   SYSTEM_TABLE_INFO*   pSystemTableInfo;
 236   FRAME_BUFFER_INFO    FbInfo;
 237   FRAME_BUFFER_INFO*   pFbInfo;
 238   ACPI_BOARD_INFO*     pAcpiBoardInfo;
 239   UINTN                PmCtrlRegBase, PmTimerRegBase, ResetRegAddress, ResetValue;
 240   UINTN                PmEvtBase;
 241   UINTN                PmGpeEnBase;
 242   CB_MEM_INFO          CbMemInfo;
 243
 244   //
 245   // Report lower 640KB of RAM. Attribute EFI_RESOURCE_ATTRIBUTE_TESTED
 246   // is intentionally omitted to prevent erasing of the coreboot header
 247   // record before it is processed by CbParseMemoryInfo.
 248   //
 249   BuildResourceDescriptorHob (
 250     EFI_RESOURCE_SYSTEM_MEMORY,
 251     (
 252     EFI_RESOURCE_ATTRIBUTE_PRESENT |
 253     EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
 254     EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |
 255     EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |
 256     EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |
 257     EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE
 258     ),
 259     (EFI_PHYSICAL_ADDRESS)(0),
 260     (UINT64)(0xA0000)
 261     );
 262
 263
 264   BuildResourceDescriptorHob (
 265     EFI_RESOURCE_MEMORY_RESERVED,
 266     (
 267     EFI_RESOURCE_ATTRIBUTE_PRESENT |
 268     EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
 269     EFI_RESOURCE_ATTRIBUTE_TESTED |
 270     EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |
 271     EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |
 272     EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |
 273     EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE
 274     ),
 275     (EFI_PHYSICAL_ADDRESS)(0xA0000),
 276     (UINT64)(0x60000)
 277     );
 278
 279   ZeroMem (&CbMemInfo, sizeof(CbMemInfo));
 280   Status = CbParseMemoryInfo (CbMemInfoCallback, (VOID *)&CbMemInfo);
 281   if (EFI_ERROR(Status)) {
 282     return Status;
 283   }
 284
 285   LowMemorySize = CbMemInfo.UsableLowMemTop;
 286   DEBUG ((EFI_D_INFO, "Low memory 0x%lx\n", LowMemorySize));
 287   DEBUG ((EFI_D_INFO, "SystemLowMemTop 0x%x\n", CbMemInfo.SystemLowMemTop));
 288
 289   //
 290   // Should be 64k aligned
 291   //
 292   PeiMemBase = (LowMemorySize - PeiMemSize) & (~(BASE_64KB - 1));
 293
 294   DEBUG((EFI_D_ERROR, "PeiMemBase: 0x%lx.\n", PeiMemBase));
 295   DEBUG((EFI_D_ERROR, "PeiMemSize: 0x%lx.\n", PeiMemSize));
 296
 297   Status = PeiServicesInstallPeiMemory (
 298          PeiMemBase,
 299          PeiMemSize
 300          );
 301   ASSERT_EFI_ERROR (Status);
 302
 303   //
 304   // Set cache on the physical memory
 305   //
 306   MtrrSetMemoryAttribute (BASE_1MB, LowMemorySize - BASE_1MB, CacheWriteBack);
 307   MtrrSetMemoryAttribute (0, 0xA0000, CacheWriteBack);
 308
 309   //
 310   // Create Memory Type Information HOB
 311   //
 312   BuildGuidDataHob (
 313     &gEfiMemoryTypeInformationGuid,
 314     mDefaultMemoryTypeInformation,
 315     sizeof(mDefaultMemoryTypeInformation)
 316     );
 317
 318   //
 319   // Create Fv hob
 320   //
 321   CbPeiReportRemainedFvs ();
 322
 323   BuildMemoryAllocationHob (
 324     PcdGet32 (PcdPayloadFdMemBase),
 325     PcdGet32 (PcdPayloadFdMemSize),
 326     EfiBootServicesData
 327     );
 328
 329   //
 330   // Build CPU memory space and IO space hob
 331   //
 332   AsmCpuid (0x80000000, &RegEax, NULL, NULL, NULL);
 333   if (RegEax >= 0x80000008) {
 334     AsmCpuid (0x80000008, &RegEax, NULL, NULL, NULL);
 335     PhysicalAddressBits = (UINT8) RegEax;
 336   } else {
 337     PhysicalAddressBits  = 36;
 338   }
 339   //
 340   // Create a CPU hand-off information
 341   //
 342   BuildCpuHob (PhysicalAddressBits, 16);
 343
 344   //
 345   // Report Local APIC range
 346   //
 347   BuildMemoryMappedIoRangeHob (0xFEC80000, SIZE_512KB);
 348
 349   //
 350   // Boot mode
 351   //
 352   Status = PeiServicesSetBootMode (BOOT_WITH_FULL_CONFIGURATION);
 353   ASSERT_EFI_ERROR (Status);
 354
 355   Status = PeiServicesInstallPpi (mPpiBootMode);
 356   ASSERT_EFI_ERROR (Status);
 357
 358    //
 359   // Set pcd to save the upper coreboot header in case the dxecore will
 360   // erase 0~4k memory
 361   //
 362   pCbHeader = NULL;
 363   if ((CbParseGetCbHeader (1, &pCbHeader) == RETURN_SUCCESS)
 364     && ((UINTN)pCbHeader > BASE_4KB)) {
 365     DEBUG((EFI_D_ERROR, "Actual Coreboot header: %p.\n", pCbHeader));
 366     Status = PcdSet32S (PcdCbHeaderPointer, (UINT32)(UINTN)pCbHeader);
 367     ASSERT_EFI_ERROR (Status);
 368   }
 369
 370   //
 371   // Create guid hob for system tables like acpi table and smbios table
 372   //
 373   pAcpiTable = NULL;
 374   AcpiTableSize = 0;
 375   pSmbiosTable = NULL;
 376   SmbiosTableSize = 0;
 377   Status = CbParseAcpiTable (&pAcpiTable, &AcpiTableSize);
 378   if (EFI_ERROR (Status)) {
 379     // ACPI table is oblidgible
 380     DEBUG ((EFI_D_ERROR, "Failed to find the required acpi table\n"));
 381     ASSERT (FALSE);
 382   }
 383   CbParseSmbiosTable (&pSmbiosTable, &SmbiosTableSize);
 384
 385   pSystemTableInfo = NULL;
 386   pSystemTableInfo = BuildGuidHob (&gUefiSystemTableInfoGuid, sizeof (SYSTEM_TABLE_INFO));
 387   ASSERT (pSystemTableInfo != NULL);
 388   pSystemTableInfo->AcpiTableBase = (UINT64) (UINTN)pAcpiTable;
 389   pSystemTableInfo->AcpiTableSize = AcpiTableSize;
 390   pSystemTableInfo->SmbiosTableBase = (UINT64) (UINTN)pSmbiosTable;
 391   pSystemTableInfo->SmbiosTableSize = SmbiosTableSize;
 392   DEBUG ((EFI_D_ERROR, "Detected Acpi Table at 0x%lx, length 0x%x\n", pSystemTableInfo->AcpiTableBase, pSystemTableInfo->AcpiTableSize));
 393   DEBUG ((EFI_D_ERROR, "Detected Smbios Table at 0x%lx, length 0x%x\n", pSystemTableInfo->SmbiosTableBase, pSystemTableInfo->SmbiosTableSize));
 394   DEBUG ((EFI_D_ERROR, "Create system table info guid hob\n"));
 395
 396   //
 397   // Create guid hob for acpi board information
 398   //
 399   Status = CbParseFadtInfo (&PmCtrlRegBase, &PmTimerRegBase, &ResetRegAddress, &ResetValue, &PmEvtBase, &PmGpeEnBase);
 400   ASSERT_EFI_ERROR (Status);
 401   pAcpiBoardInfo = NULL;
 402   pAcpiBoardInfo = BuildGuidHob (&gUefiAcpiBoardInfoGuid, sizeof (ACPI_BOARD_INFO));
 403   ASSERT (pAcpiBoardInfo != NULL);
 404   pAcpiBoardInfo->PmCtrlRegBase = (UINT64)PmCtrlRegBase;
 405   pAcpiBoardInfo->PmTimerRegBase = (UINT64)PmTimerRegBase;
 406   pAcpiBoardInfo->ResetRegAddress = (UINT64)ResetRegAddress;
 407   pAcpiBoardInfo->ResetValue = (UINT8)ResetValue;
 408   pAcpiBoardInfo->PmEvtBase = (UINT64)PmEvtBase;
 409   pAcpiBoardInfo->PmGpeEnBase = (UINT64)PmGpeEnBase;
 410   DEBUG ((EFI_D_ERROR, "Create acpi board info guid hob\n"));
 411
 412   //
 413   // Create guid hob for frame buffer information
 414   //
 415   ZeroMem (&FbInfo, sizeof (FRAME_BUFFER_INFO));
 416   Status = CbParseFbInfo (&FbInfo);
 417   if (!EFI_ERROR (Status)) {
 418     pFbInfo = BuildGuidHob (&gUefiFrameBufferInfoGuid, sizeof (FRAME_BUFFER_INFO));
 419     ASSERT (pSystemTableInfo != NULL);
 420     CopyMem (pFbInfo, &FbInfo, sizeof (FRAME_BUFFER_INFO));
 421     DEBUG ((EFI_D_ERROR, "Create frame buffer info guid hob\n"));
 422   }
 423
 424   //
 425   // Parse platform specific information from coreboot.
 426   //
 427   Status = CbParsePlatformInfo ();
 428   if (EFI_ERROR (Status)) {
 429     DEBUG ((EFI_D_ERROR, "Error when parsing platform info, Status = %r\n", Status));
 430     return Status;
 431   }
 432
 433   //
 434   // Mask off all legacy 8259 interrupt sources
 435   //
 436   IoWrite8 (LEGACY_8259_MASK_REGISTER_MASTER, 0xFF);
 437   IoWrite8 (LEGACY_8259_MASK_REGISTER_SLAVE,  0xFF);
 438
 439   return EFI_SUCCESS;
 440 }
 441