DuetPkg/EfiLdr/EfiLoader.c

   1 /*++
   2
   3 Copyright (c) 2006, Intel Corporation
   4 All rights reserved. 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 Module Name:
  13   EfiLoader.c
  14
  15 Abstract:
  16
  17 Revision History:
  18
  19 --*/
  20
  21 #include "EfiLdr.h"
  22 #include "Support.h"
  23 #include "Debug.h"
  24 #include "PeLoader.h"
  25 #include "TianoDecompress.h"
  26
  27 STATIC
  28 VOID
  29 SystemHang(
  30   VOID
  31   )
  32 {
  33   CHAR8 PrintBuffer[256];
  34   AsciiSPrint (PrintBuffer, 256, "## FATEL ERROR ##: Fail to load DUET images! System hang!\n");
  35   CpuDeadLoop();
  36 }
  37
  38 VOID
  39 EfiLoader (
  40   UINT32    BiosMemoryMapBaseAddress
  41   )
  42 {
  43   BIOS_MEMORY_MAP       *BiosMemoryMap;
  44   EFILDR_HEADER         *EFILDRHeader;
  45   EFILDR_IMAGE          *EFILDRImage;
  46   EFI_MEMORY_DESCRIPTOR EfiMemoryDescriptor[EFI_MAX_MEMORY_DESCRIPTORS];
  47   EFI_STATUS            Status;
  48   UINTN                 NumberOfMemoryMapEntries;
  49   UINT32                DestinationSize;
  50   UINT32                ScratchSize;
  51   UINTN                 BfvPageNumber;
  52   UINTN                 BfvBase;
  53   EFI_MAIN_ENTRYPOINT   EfiMainEntrypoint;
  54   CHAR8                 PrintBuffer[256];
  55   static EFILDRHANDOFF  Handoff;
  56
  57   ClearScreen();
  58
  59   PrintHeader ('A');
  60
  61   AsciiSPrint (PrintBuffer, 256, "Enter DUET Loader ...\n", BiosMemoryMapBaseAddress);
  62   PrintString (PrintBuffer);
  63
  64   AsciiSPrint (PrintBuffer, 256, "BiosMemoryMapBaseAddress = 0x%x\n", BiosMemoryMapBaseAddress);
  65   PrintString (PrintBuffer);
  66
  67   //
  68   // Add all EfiConventionalMemory descriptors to the table.  If there are partial pages, then
  69   // round the start address up to the next page, and round the length down to a page boundry.
  70   //
  71   BiosMemoryMap = (BIOS_MEMORY_MAP *)(UINTN)(BiosMemoryMapBaseAddress);
  72   NumberOfMemoryMapEntries = 0;
  73   GenMemoryMap (&NumberOfMemoryMapEntries, EfiMemoryDescriptor, BiosMemoryMap);
  74
  75   AsciiSPrint (PrintBuffer, 256, "Get %d entries of memory map!\n", NumberOfMemoryMapEntries);
  76   PrintString (PrintBuffer);
  77
  78   //
  79   // Get information on where the image is in memory
  80   //
  81
  82   EFILDRHeader = (EFILDR_HEADER *)(UINTN)(EFILDR_HEADER_ADDRESS);
  83   EFILDRImage  = (EFILDR_IMAGE *)(UINTN)(EFILDR_HEADER_ADDRESS + sizeof(EFILDR_HEADER));
  84
  85
  86   //
  87   // Point to the 4th image (Bfv)
  88   //
  89
  90   EFILDRImage += 3;
  91
  92   //
  93   // Decompress the image
  94   //
  95
  96   AsciiSPrint (PrintBuffer, 256, "Decompress BFV image, Image Address=0x%x! Offset=0x%x\n",
  97                (UINTN)(EFILDR_HEADER_ADDRESS + EFILDRImage->Offset),
  98                EFILDRImage->Offset);
  99   PrintString (PrintBuffer);
 100
 101   Status = TianoGetInfo (
 102              (VOID *)(UINTN)(EFILDR_HEADER_ADDRESS + EFILDRImage->Offset),
 103              EFILDRImage->Length,
 104              &DestinationSize,
 105              &ScratchSize
 106              );
 107
 108   if (EFI_ERROR (Status)) {
 109     AsciiSPrint (PrintBuffer, 256, "Fail to get decompress information for BFV!\n");
 110     PrintString (PrintBuffer);
 111     SystemHang();
 112   }
 113
 114   Status = TianoDecompress (
 115              (VOID *)(UINTN)(EFILDR_HEADER_ADDRESS + EFILDRImage->Offset),
 116              EFILDRImage->Length,
 117              (VOID *)(UINTN)EFI_DECOMPRESSED_BUFFER_ADDRESS,
 118              DestinationSize,
 119              (VOID *)(UINTN)((EFI_DECOMPRESSED_BUFFER_ADDRESS + DestinationSize + 0x1000) & 0xfffff000),
 120              ScratchSize
 121              );
 122
 123   if (EFI_ERROR (Status)) {
 124     AsciiSPrint (PrintBuffer, 256, "Fail to decompress BFV!\n");
 125     PrintString (PrintBuffer);
 126     SystemHang();
 127   }
 128
 129   BfvPageNumber = EFI_SIZE_TO_PAGES (DestinationSize);
 130   BfvBase = (UINTN) FindSpace (BfvPageNumber, &NumberOfMemoryMapEntries, EfiMemoryDescriptor, EfiRuntimeServicesData, EFI_MEMORY_WB);
 131   if (BfvBase == 0) {
 132     SystemHang();
 133   }
 134   ZeroMem ((VOID *)(UINTN)BfvBase, BfvPageNumber * EFI_PAGE_SIZE);
 135   CopyMem ((VOID *)(UINTN)BfvBase, (VOID *)(UINTN)EFI_DECOMPRESSED_BUFFER_ADDRESS, DestinationSize);
 136
 137   PrintHeader ('B');
 138
 139   //
 140   // Point to the 2nd image (DxeIpl)
 141   //
 142
 143   EFILDRImage -= 2;
 144
 145   //
 146   // Decompress the image
 147   //
 148   AsciiSPrint (PrintBuffer, 256, "Decompress DxeIpl image, Image Address=0x%x! Offset=0x%x\n",
 149                (UINTN)(EFILDR_HEADER_ADDRESS + EFILDRImage->Offset),
 150                EFILDRImage->Offset);
 151
 152   Status = TianoGetInfo (
 153              (VOID *)(UINTN)(EFILDR_HEADER_ADDRESS + EFILDRImage->Offset),
 154              EFILDRImage->Length,
 155              &DestinationSize,
 156              &ScratchSize
 157              );
 158   if (EFI_ERROR (Status)) {
 159     AsciiSPrint (PrintBuffer, 256, "Fail to get decompress information for DxeIpl!\n");
 160     PrintString (PrintBuffer);
 161     SystemHang();
 162   }
 163
 164   Status = TianoDecompress (
 165              (VOID *)(UINTN)(EFILDR_HEADER_ADDRESS + EFILDRImage->Offset),
 166              EFILDRImage->Length,
 167              (VOID *)(UINTN)EFI_DECOMPRESSED_BUFFER_ADDRESS,
 168              DestinationSize,
 169              (VOID *)(UINTN)((EFI_DECOMPRESSED_BUFFER_ADDRESS + DestinationSize + 0x1000) & 0xfffff000),
 170              ScratchSize
 171              );
 172   if (EFI_ERROR (Status)) {
 173     AsciiSPrint (PrintBuffer, 256, "Fail to decompress DxeIpl image\n");
 174     PrintString (PrintBuffer);
 175     SystemHang();
 176   }
 177
 178   AsciiSPrint (PrintBuffer, 256, "Start load DxeIpl PE image\n");
 179   PrintString (PrintBuffer);
 180
 181   //
 182   // Load and relocate the EFI PE/COFF Firmware Image
 183   //
 184   Status = EfiLdrPeCoffLoadPeImage (
 185              (VOID *)(UINTN)(EFI_DECOMPRESSED_BUFFER_ADDRESS),
 186              &DxeIplImage,
 187              &NumberOfMemoryMapEntries,
 188              EfiMemoryDescriptor
 189              );
 190   if (EFI_ERROR (Status)) {
 191     AsciiSPrint (PrintBuffer, 256, "Fail to load and relocate DxeIpl PE image!\n");
 192     PrintString (PrintBuffer);
 193     SystemHang();
 194   }
 195
 196 //  PrintString("Image.NoPages = ");
 197 //  PrintValue(Image.NoPages);
 198 //  PrintString("\n");
 199
 200 PrintHeader ('C');
 201
 202   //
 203   // Point to the 3rd image (DxeMain)
 204   //
 205
 206   EFILDRImage++;
 207
 208   //
 209   // Decompress the image
 210   //
 211
 212   Status = TianoGetInfo (
 213              (VOID *)(UINTN)(EFILDR_HEADER_ADDRESS + EFILDRImage->Offset),
 214              EFILDRImage->Length,
 215              &DestinationSize,
 216              &ScratchSize
 217              );
 218   if (EFI_ERROR (Status)) {
 219     SystemHang();
 220   }
 221
 222   Status = TianoDecompress (
 223              (VOID *)(UINTN)(EFILDR_HEADER_ADDRESS + EFILDRImage->Offset),
 224              EFILDRImage->Length,
 225              (VOID *)(UINTN)EFI_DECOMPRESSED_BUFFER_ADDRESS,
 226              DestinationSize,
 227              (VOID *)(UINTN)((EFI_DECOMPRESSED_BUFFER_ADDRESS + DestinationSize + 0x1000) & 0xfffff000),
 228              ScratchSize
 229              );
 230   if (EFI_ERROR (Status)) {
 231     SystemHang();
 232   }
 233
 234   //
 235   // Load and relocate the EFI PE/COFF Firmware Image
 236   //
 237   Status = EfiLdrPeCoffLoadPeImage (
 238              (VOID *)(UINTN)(EFI_DECOMPRESSED_BUFFER_ADDRESS),
 239              &DxeCoreImage,
 240              &NumberOfMemoryMapEntries,
 241              EfiMemoryDescriptor
 242              );
 243   if (EFI_ERROR (Status)) {
 244     SystemHang();
 245   }
 246
 247 PrintHeader ('E');
 248
 249   //
 250   // Display the table of memory descriptors.
 251   //
 252
 253 //  PrintString("\nEFI Memory Descriptors\n");
 254 /*
 255   {
 256   UINTN Index;
 257   for (Index = 0; Index < NumberOfMemoryMapEntries; Index++) {
 258     PrintString("Type = ");
 259     PrintValue(EfiMemoryDescriptor[Index].Type);
 260     PrintString("  Start = ");
 261     PrintValue((UINT32)(EfiMemoryDescriptor[Index].PhysicalStart));
 262     PrintString("  NumberOfPages = ");
 263     PrintValue((UINT32)(EfiMemoryDescriptor[Index].NumberOfPages));
 264     PrintString("\n");
 265   }
 266   }
 267 */
 268
 269   //
 270   // Jump to EFI Firmware
 271   //
 272
 273   if (DxeIplImage.EntryPoint != NULL) {
 274
 275     Handoff.MemDescCount      = NumberOfMemoryMapEntries;
 276     Handoff.MemDesc           = EfiMemoryDescriptor;
 277     Handoff.BfvBase           = (VOID *)(UINTN)BfvBase;
 278     Handoff.BfvSize           = BfvPageNumber * EFI_PAGE_SIZE;
 279     Handoff.DxeIplImageBase   = (VOID *)(UINTN)DxeIplImage.ImageBasePage;
 280     Handoff.DxeIplImageSize   = DxeIplImage.NoPages * EFI_PAGE_SIZE;
 281     Handoff.DxeCoreImageBase  = (VOID *)(UINTN)DxeCoreImage.ImageBasePage;
 282     Handoff.DxeCoreImageSize  = DxeCoreImage.NoPages * EFI_PAGE_SIZE;
 283     Handoff.DxeCoreEntryPoint = (VOID *)(UINTN)DxeCoreImage.EntryPoint;
 284
 285     EfiMainEntrypoint = (EFI_MAIN_ENTRYPOINT)(UINTN)DxeIplImage.EntryPoint;
 286     EfiMainEntrypoint (&Handoff);
 287   }
 288
 289 PrintHeader ('F');
 290
 291   //
 292   // There was a problem loading the image, so HALT the system.
 293   //
 294
 295   SystemHang();
 296 }
 297