reactos/boot/freeldr/freeldr/windows/winldr.c

   1 /*
   2  *  FreeLoader
   3  *
   4  *  Copyright (C) 1998-2003  Brian Palmer    <brianp@sginet.com>
   5  *  Copyright (C) 2006       Aleksey Bragin  <aleksey@reactos.org>
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License as published by
   9  *  the Free Software Foundation; either version 2 of the License, or
  10  *  (at your option) any later version.
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License along
  18  *  with this program; if not, write to the Free Software Foundation, Inc.,
  19  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  20  */
  21
  22 #include <freeldr.h>
  23
  24 #include <ndk/ldrtypes.h>
  25 #include <debug.h>
  26
  27 DBG_DEFAULT_CHANNEL(WINDOWS);
  28
  29 //FIXME: Do a better way to retrieve Arc disk information
  30 extern ULONG reactos_disk_count;
  31 extern ARC_DISK_SIGNATURE reactos_arc_disk_info[];
  32
  33 extern BOOLEAN UseRealHeap;
  34 extern ULONG LoaderPagesSpanned;
  35 extern BOOLEAN AcpiPresent;
  36
  37 extern HEADLESS_LOADER_BLOCK LoaderRedirectionInformation;
  38 extern BOOLEAN WinLdrTerminalConnected;
  39 extern void WinLdrSetupEms(IN PCHAR BootOptions);
  40
  41 PLOADER_SYSTEM_BLOCK WinLdrSystemBlock;
  42
  43 // debug stuff
  44 VOID DumpMemoryAllocMap(VOID);
  45
  46 // Init "phase 0"
  47 VOID
  48 AllocateAndInitLPB(PLOADER_PARAMETER_BLOCK *OutLoaderBlock)
  49 {
  50         PLOADER_PARAMETER_BLOCK LoaderBlock;
  51         ULONG SystemBlockSize;
  52
  53         /* Allocate and zero-init the LPB */
  54         SystemBlockSize = sizeof(LOADER_SYSTEM_BLOCK) +
  55                           reactos_disk_count * sizeof(ARC_DISK_SIGNATURE_EX);
  56         WinLdrSystemBlock = MmAllocateMemoryWithType(SystemBlockSize,
  57                                                  LoaderSystemBlock);
  58         if (WinLdrSystemBlock == NULL)
  59         {
  60                 UiMessageBox("Failed to allocate memory for system block!");
  61                 return;
  62         }
  63
  64         RtlZeroMemory(WinLdrSystemBlock, sizeof(LOADER_SYSTEM_BLOCK));
  65
  66     LoaderBlock = &WinLdrSystemBlock->LoaderBlock;
  67         LoaderBlock->NlsData = &WinLdrSystemBlock->NlsDataBlock;
  68
  69         /* Init three critical lists, used right away */
  70         InitializeListHead(&LoaderBlock->LoadOrderListHead);
  71         InitializeListHead(&LoaderBlock->MemoryDescriptorListHead);
  72         InitializeListHead(&LoaderBlock->BootDriverListHead);
  73
  74         *OutLoaderBlock = LoaderBlock;
  75 }
  76
  77 // Init "phase 1"
  78 VOID
  79 WinLdrInitializePhase1(PLOADER_PARAMETER_BLOCK LoaderBlock,
  80                        LPCSTR Options,
  81                        LPCSTR SystemRoot,
  82                        LPCSTR BootPath,
  83                        USHORT VersionToBoot)
  84 {
  85         /* Examples of correct options and paths */
  86         //CHAR  Options[] = "/DEBUGPORT=COM1 /BAUDRATE=115200";
  87         //CHAR  Options[] = "/NODEBUG";
  88         //CHAR  SystemRoot[] = "\\WINNT\\";
  89         //CHAR  ArcBoot[] = "multi(0)disk(0)rdisk(0)partition(1)";
  90
  91         CHAR    HalPath[] = "\\";
  92         CHAR    ArcBoot[256];
  93         CHAR    MiscFiles[256];
  94         ULONG i, PathSeparator;
  95         PLOADER_PARAMETER_EXTENSION Extension;
  96
  97         /* Construct SystemRoot and ArcBoot from SystemPath */
  98         PathSeparator = strstr(BootPath, "\\") - BootPath;
  99         strncpy(ArcBoot, BootPath, PathSeparator);
 100         ArcBoot[PathSeparator] = 0;
 101
 102         TRACE("ArcBoot: %s\n", ArcBoot);
 103         TRACE("SystemRoot: %s\n", SystemRoot);
 104         TRACE("Options: %s\n", Options);
 105
 106         /* Fill Arc BootDevice */
 107         LoaderBlock->ArcBootDeviceName = WinLdrSystemBlock->ArcBootDeviceName;
 108         strncpy(LoaderBlock->ArcBootDeviceName, ArcBoot, MAX_PATH);
 109         LoaderBlock->ArcBootDeviceName = PaToVa(LoaderBlock->ArcBootDeviceName);
 110
 111         /* Fill Arc HalDevice, it matches ArcBoot path */
 112         LoaderBlock->ArcHalDeviceName = WinLdrSystemBlock->ArcBootDeviceName;
 113         LoaderBlock->ArcHalDeviceName = PaToVa(LoaderBlock->ArcHalDeviceName);
 114
 115         /* Fill SystemRoot */
 116         LoaderBlock->NtBootPathName = WinLdrSystemBlock->NtBootPathName;
 117         strncpy(LoaderBlock->NtBootPathName, SystemRoot, MAX_PATH);
 118         LoaderBlock->NtBootPathName = PaToVa(LoaderBlock->NtBootPathName);
 119
 120         /* Fill NtHalPathName */
 121         LoaderBlock->NtHalPathName = WinLdrSystemBlock->NtHalPathName;
 122         strncpy(LoaderBlock->NtHalPathName, HalPath, MAX_PATH);
 123         LoaderBlock->NtHalPathName = PaToVa(LoaderBlock->NtHalPathName);
 124
 125         /* Fill load options */
 126         LoaderBlock->LoadOptions = WinLdrSystemBlock->LoadOptions;
 127         strncpy(LoaderBlock->LoadOptions, Options, MAX_OPTIONS_LENGTH);
 128         LoaderBlock->LoadOptions = PaToVa(LoaderBlock->LoadOptions);
 129
 130         /* Arc devices */
 131         LoaderBlock->ArcDiskInformation = &WinLdrSystemBlock->ArcDiskInformation;
 132         InitializeListHead(&LoaderBlock->ArcDiskInformation->DiskSignatureListHead);
 133
 134         /* Convert ARC disk information from freeldr to a correct format */
 135         for (i = 0; i < reactos_disk_count; i++)
 136         {
 137                 PARC_DISK_SIGNATURE ArcDiskSig;
 138
 139                 /* Get the ARC structure */
 140                 ArcDiskSig = &WinLdrSystemBlock->ArcDiskSignature[i].DiskSignature;
 141
 142                 /* Copy the data over */
 143                 ArcDiskSig->Signature = reactos_arc_disk_info[i].Signature;
 144                 ArcDiskSig->CheckSum = reactos_arc_disk_info[i].CheckSum;
 145
 146                 /* Copy the ARC Name */
 147                 ArcDiskSig->ArcName = WinLdrSystemBlock->ArcDiskSignature[i].ArcName;
 148                 strncpy(ArcDiskSig->ArcName, reactos_arc_disk_info[i].ArcName, MAX_PATH);
 149                 ArcDiskSig->ArcName = PaToVa(ArcDiskSig->ArcName);
 150
 151                 /* Mark partition table as valid */
 152                 ArcDiskSig->ValidPartitionTable = TRUE;
 153
 154                 /* Insert into the list */
 155                 InsertTailList(&LoaderBlock->ArcDiskInformation->DiskSignatureListHead,
 156                         &ArcDiskSig->ListEntry);
 157         }
 158
 159         /* Convert all list's to Virtual address */
 160
 161         /* Convert the ArcDisks list to virtual address */
 162         List_PaToVa(&LoaderBlock->ArcDiskInformation->DiskSignatureListHead);
 163         LoaderBlock->ArcDiskInformation = PaToVa(LoaderBlock->ArcDiskInformation);
 164
 165         /* Convert configuration entries to VA */
 166         ConvertConfigToVA(LoaderBlock->ConfigurationRoot);
 167         LoaderBlock->ConfigurationRoot = PaToVa(LoaderBlock->ConfigurationRoot);
 168
 169         /* Convert all DTE into virtual addresses */
 170         List_PaToVa(&LoaderBlock->LoadOrderListHead);
 171
 172         /* this one will be converted right before switching to
 173            virtual paging mode */
 174         //List_PaToVa(&LoaderBlock->MemoryDescriptorListHead);
 175
 176         /* Convert list of boot drivers */
 177         List_PaToVa(&LoaderBlock->BootDriverListHead);
 178
 179         /* Initialize Extension now */
 180         Extension = &WinLdrSystemBlock->Extension;
 181         Extension->Size = sizeof(LOADER_PARAMETER_EXTENSION);
 182         Extension->MajorVersion = (VersionToBoot & 0xFF00) >> 8;
 183         Extension->MinorVersion = VersionToBoot & 0xFF;
 184         Extension->Profile.Status = 2;
 185
 186         /* Check if ACPI is present */
 187         if (AcpiPresent)
 188         {
 189                 /* See KiRosFrldrLpbToNtLpb for details */
 190                 Extension->AcpiTable = (PVOID)1;
 191         }
 192
 193 #ifdef _M_IX86
 194     /* Set headless block pointer */
 195     if (WinLdrTerminalConnected)
 196     {
 197         Extension->HeadlessLoaderBlock = &WinLdrSystemBlock->HeadlessLoaderBlock;
 198         RtlCopyMemory(Extension->HeadlessLoaderBlock,
 199                       &LoaderRedirectionInformation,
 200                       sizeof(HEADLESS_LOADER_BLOCK));
 201         Extension->HeadlessLoaderBlock = PaToVa(Extension->HeadlessLoaderBlock);
 202     }
 203 #endif
 204         /* Load drivers database */
 205         strcpy(MiscFiles, BootPath);
 206         strcat(MiscFiles, "AppPatch\\drvmain.sdb");
 207         Extension->DrvDBImage = PaToVa(WinLdrLoadModule(MiscFiles,
 208                                                             &Extension->DrvDBSize,
 209                                                             LoaderRegistryData));
 210
 211         /* Convert extension and setup block pointers */
 212         LoaderBlock->Extension = PaToVa(Extension);
 213
 214         if (LoaderBlock->SetupLdrBlock)
 215                 LoaderBlock->SetupLdrBlock = PaToVa(LoaderBlock->SetupLdrBlock);
 216
 217 }
 218
 219 BOOLEAN
 220 WinLdrLoadDeviceDriver(PLOADER_PARAMETER_BLOCK LoaderBlock,
 221                        LPSTR BootPath,
 222                        PUNICODE_STRING FilePath,
 223                        ULONG Flags,
 224                        PLDR_DATA_TABLE_ENTRY *DriverDTE)
 225 {
 226         CHAR FullPath[1024];
 227         CHAR DriverPath[1024];
 228         CHAR DllName[1024];
 229         PCHAR DriverNamePos;
 230         BOOLEAN Status;
 231         PVOID DriverBase;
 232
 233         // Separate the path to file name and directory path
 234         _snprintf(DriverPath, sizeof(DriverPath), "%wZ", FilePath);
 235         DriverNamePos = strrchr(DriverPath, '\\');
 236         if (DriverNamePos != NULL)
 237         {
 238                 // Copy the name
 239                 strcpy(DllName, DriverNamePos+1);
 240
 241                 // Cut out the name from the path
 242                 *(DriverNamePos+1) = 0;
 243         }
 244         else
 245         {
 246                 // There is no directory in the path
 247                 strcpy(DllName, DriverPath);
 248                 DriverPath[0] = 0;
 249         }
 250
 251         TRACE("DriverPath: %s, DllName: %s, LPB %p\n", DriverPath, DllName, LoaderBlock);
 252
 253
 254         // Check if driver is already loaded
 255         Status = WinLdrCheckForLoadedDll(LoaderBlock, DllName, DriverDTE);
 256         if (Status)
 257         {
 258                 // We've got the pointer to its DTE, just return success
 259                 return TRUE;
 260         }
 261
 262         // It's not loaded, we have to load it
 263         _snprintf(FullPath, sizeof(FullPath), "%s%wZ", BootPath, FilePath);
 264         Status = WinLdrLoadImage(FullPath, LoaderBootDriver, &DriverBase);
 265         if (!Status)
 266                 return FALSE;
 267
 268         // Allocate a DTE for it
 269         Status = WinLdrAllocateDataTableEntry(LoaderBlock, DllName, DllName, DriverBase, DriverDTE);
 270         if (!Status)
 271         {
 272                 ERR("WinLdrAllocateDataTableEntry() failed\n");
 273                 return FALSE;
 274         }
 275
 276         // Modify any flags, if needed
 277         (*DriverDTE)->Flags |= Flags;
 278
 279         // Look for any dependencies it may have, and load them too
 280         sprintf(FullPath,"%s%s", BootPath, DriverPath);
 281         Status = WinLdrScanImportDescriptorTable(LoaderBlock, FullPath, *DriverDTE);
 282         if (!Status)
 283         {
 284                 ERR("WinLdrScanImportDescriptorTable() failed for %s\n", FullPath);
 285                 return FALSE;
 286         }
 287
 288         return TRUE;
 289 }
 290
 291 BOOLEAN
 292 WinLdrLoadBootDrivers(PLOADER_PARAMETER_BLOCK LoaderBlock,
 293                       LPSTR BootPath)
 294 {
 295         PLIST_ENTRY NextBd;
 296         PBOOT_DRIVER_LIST_ENTRY BootDriver;
 297         BOOLEAN Status;
 298
 299         // Walk through the boot drivers list
 300         NextBd = LoaderBlock->BootDriverListHead.Flink;
 301
 302         while (NextBd != &LoaderBlock->BootDriverListHead)
 303         {
 304                 BootDriver = CONTAINING_RECORD(NextBd, BOOT_DRIVER_LIST_ENTRY, Link);
 305
 306                 TRACE("BootDriver %wZ DTE %08X RegPath: %wZ\n", &BootDriver->FilePath,
 307                         BootDriver->LdrEntry, &BootDriver->RegistryPath);
 308
 309                 // Paths are relative (FIXME: Are they always relative?)
 310
 311                 // Load it
 312                 Status = WinLdrLoadDeviceDriver(LoaderBlock, BootPath, &BootDriver->FilePath,
 313                         0, &BootDriver->LdrEntry);
 314
 315                 // If loading failed - cry loudly
 316                 //FIXME: Maybe remove it from the list and try to continue?
 317                 if (!Status)
 318                 {
 319                         UiMessageBox("Can't load boot driver!");
 320                         return FALSE;
 321                 }
 322
 323                 // Convert the RegistryPath and DTE addresses to VA since we are not going to use it anymore
 324                 BootDriver->RegistryPath.Buffer = PaToVa(BootDriver->RegistryPath.Buffer);
 325                 BootDriver->FilePath.Buffer = PaToVa(BootDriver->FilePath.Buffer);
 326                 BootDriver->LdrEntry = PaToVa(BootDriver->LdrEntry);
 327
 328                 NextBd = BootDriver->Link.Flink;
 329         }
 330
 331         return TRUE;
 332 }
 333
 334 PVOID WinLdrLoadModule(PCSTR ModuleName, ULONG *Size,
 335                                            TYPE_OF_MEMORY MemoryType)
 336 {
 337         ULONG FileId;
 338         PVOID PhysicalBase;
 339         FILEINFORMATION FileInfo;
 340         ULONG FileSize;
 341         ULONG Status;
 342         ULONG BytesRead;
 343
 344         //CHAR ProgressString[256];
 345
 346         /* Inform user we are loading files */
 347         //sprintf(ProgressString, "Loading %s...", FileName);
 348         //UiDrawProgressBarCenter(1, 100, ProgressString);
 349
 350         TRACE("Loading module %s\n", ModuleName);
 351         *Size = 0;
 352
 353         /* Open the image file */
 354         Status = ArcOpen((PCHAR)ModuleName, OpenReadOnly, &FileId);
 355         if (Status != ESUCCESS)
 356         {
 357                 /* In case of errors, we just return, without complaining to the user */
 358                 return NULL;
 359         }
 360
 361         /* Get this file's size */
 362         Status = ArcGetFileInformation(FileId, &FileInfo);
 363         if (Status != ESUCCESS)
 364         {
 365                 ArcClose(FileId);
 366                 return NULL;
 367         }
 368         FileSize = FileInfo.EndingAddress.LowPart;
 369         *Size = FileSize;
 370
 371         /* Allocate memory */
 372         PhysicalBase = MmAllocateMemoryWithType(FileSize, MemoryType);
 373         if (PhysicalBase == NULL)
 374         {
 375                 ArcClose(FileId);
 376                 return NULL;
 377         }
 378
 379         /* Load whole file */
 380         Status = ArcRead(FileId, PhysicalBase, FileSize, &BytesRead);
 381         ArcClose(FileId);
 382         if (Status != ESUCCESS)
 383         {
 384                 return NULL;
 385         }
 386
 387         TRACE("Loaded %s at 0x%x with size 0x%x\n", ModuleName, PhysicalBase, FileSize);
 388
 389         return PhysicalBase;
 390 }
 391
 392
 393 USHORT
 394 WinLdrDetectVersion()
 395 {
 396         LONG rc;
 397         FRLDRHKEY hKey;
 398
 399         rc = RegOpenKey(
 400                 NULL,
 401                 L"\\Registry\\Machine\\SYSTEM\\CurrentControlSet\\Control\\Terminal Server",
 402                 &hKey);
 403         if (rc != ERROR_SUCCESS)
 404         {
 405                 // Key doesn't exist; assume NT 4.0
 406                 return _WIN32_WINNT_NT4;
 407         }
 408
 409         // We may here want to read the value of ProductVersion
 410         return _WIN32_WINNT_WS03;
 411 }
 412
 413 static
 414 PVOID
 415 LoadModule(
 416     PLOADER_PARAMETER_BLOCK LoaderBlock,
 417     PCCH Path,
 418     PCCH File,
 419     TYPE_OF_MEMORY MemoryType,
 420     PLDR_DATA_TABLE_ENTRY *Dte,
 421     ULONG Percentage)
 422 {
 423         CHAR FullFileName[MAX_PATH];
 424         CHAR ProgressString[256];
 425         NTSTATUS Status;
 426         PVOID BaseAdress;
 427
 428         UiDrawBackdrop();
 429         sprintf(ProgressString, "Loading %s...", File);
 430         UiDrawProgressBarCenter(Percentage, 100, ProgressString);
 431
 432         strcpy(FullFileName, Path);
 433         strcat(FullFileName, "SYSTEM32\\");
 434         strcat(FullFileName, File);
 435
 436         Status = WinLdrLoadImage(FullFileName, MemoryType, &BaseAdress);
 437         TRACE("%s loaded with status %d at %p\n",
 438                 File, Status, BaseAdress);
 439
 440         strcpy(FullFileName, "WINDOWS\\SYSTEM32\\");
 441         strcat(FullFileName, File);
 442         WinLdrAllocateDataTableEntry(LoaderBlock, File,
 443                 FullFileName, BaseAdress, Dte);
 444
 445         return BaseAdress;
 446 }
 447
 448 VOID
 449 LoadAndBootWindows(PCSTR OperatingSystemName,
 450                    PSTR SettingsValue,
 451                    USHORT OperatingSystemVersion)
 452 {
 453         BOOLEAN HasSection;
 454         char  BootPath[MAX_PATH];
 455         CHAR  FileName[MAX_PATH];
 456         CHAR  BootOptions[256];
 457         PCHAR File;
 458         BOOLEAN Status;
 459         ULONG_PTR SectionId;
 460         PLOADER_PARAMETER_BLOCK LoaderBlock;
 461
 462         // Open the operating system section
 463         // specified in the .ini file
 464         HasSection = IniOpenSection(OperatingSystemName, &SectionId);
 465
 466         UiDrawBackdrop();
 467         UiDrawProgressBarCenter(1, 100, "Loading NT...");
 468
 469         /* Read the system path is set in the .ini file */
 470         if (!HasSection ||
 471             !IniReadSettingByName(SectionId, "SystemPath", BootPath, sizeof(BootPath)))
 472         {
 473                 strcpy(BootPath, OperatingSystemName);
 474         }
 475
 476         /* Special case for LiveCD */
 477         if (!_strnicmp(BootPath, "LiveCD", strlen("LiveCD")))
 478         {
 479                 strcpy(FileName, BootPath + strlen("LiveCD"));
 480                 MachDiskGetBootPath(BootPath, sizeof(BootPath));
 481                 strcat(BootPath, FileName);
 482         }
 483
 484         /* append a backslash */
 485         if ((strlen(BootPath)==0) || BootPath[strlen(BootPath)] != '\\')
 486                 strcat(BootPath, "\\");
 487
 488         /* Read booting options */
 489         if (!HasSection || !IniReadSettingByName(SectionId, "Options", BootOptions, sizeof(BootOptions)))
 490         {
 491                 /* Get options after the title */
 492                 const CHAR*p = SettingsValue;
 493                 while (*p == ' ' || *p == '"')
 494                         p++;
 495                 while (*p != '\0' && *p != '"')
 496                         p++;
 497                 strcpy(BootOptions, p);
 498                 TRACE("BootOptions: '%s'\n", BootOptions);
 499         }
 500
 501         /* Append boot-time options */
 502         AppendBootTimeOptions(BootOptions);
 503
 504         /* Check if a ramdisk file was given */
 505         File = strstr(BootOptions, "/RDPATH=");
 506         if (File)
 507         {
 508                 /* Copy the file name and everything else after it */
 509                 strcpy(FileName, File + 8);
 510
 511                 /* Null-terminate */
 512                 *strstr(FileName, " ") = ANSI_NULL;
 513
 514                 /* Load the ramdisk */
 515                 RamDiskLoadVirtualFile(FileName);
 516         }
 517
 518         /* Let user know we started loading */
 519         //UiDrawStatusText("Loading...");
 520
 521         TRACE("BootPath: '%s'\n", BootPath);
 522
 523         /* Allocate and minimalistic-initialize LPB */
 524         AllocateAndInitLPB(&LoaderBlock);
 525
 526 #ifdef _M_IX86
 527         /* Setup redirection support */
 528         WinLdrSetupEms(BootOptions);
 529 #endif
 530
 531         /* Load Hive */
 532         UiDrawBackdrop();
 533         UiDrawProgressBarCenter(15, 100, "Loading system hive...");
 534         Status = WinLdrInitSystemHive(LoaderBlock, BootPath);
 535         TRACE("SYSTEM hive loaded with status %d\n", Status);
 536
 537         /* Load NLS data, OEM font, and prepare boot drivers list */
 538         Status = WinLdrScanSystemHive(LoaderBlock, BootPath);
 539         TRACE("SYSTEM hive scanned with status %d\n", Status);
 540
 541
 542         LoadAndBootWindowsCommon(OperatingSystemVersion,
 543                                  LoaderBlock,
 544                                  BootOptions,
 545                                  BootPath,
 546                                  0);
 547 }
 548
 549 VOID
 550 LoadAndBootWindowsCommon(
 551         USHORT OperatingSystemVersion,
 552         PLOADER_PARAMETER_BLOCK LoaderBlock,
 553         LPCSTR BootOptions,
 554         LPCSTR BootPath,
 555         BOOLEAN Setup)
 556 {
 557         PLOADER_PARAMETER_BLOCK LoaderBlockVA;
 558         BOOLEAN Status;
 559         CHAR FileName[MAX_PATH];
 560         PLDR_DATA_TABLE_ENTRY KernelDTE, HalDTE, KdComDTE = NULL;
 561         KERNEL_ENTRY_POINT KiSystemStartup;
 562         LPCSTR SystemRoot;
 563         TRACE("LoadAndBootWindowsCommon()\n");
 564
 565         /* Convert BootPath to SystemRoot */
 566         SystemRoot = strstr(BootPath, "\\");
 567
 568         /* Detect hardware */
 569         UseRealHeap = TRUE;
 570         LoaderBlock->ConfigurationRoot = MachHwDetect();
 571
 572         if (OperatingSystemVersion == 0)
 573                 OperatingSystemVersion = WinLdrDetectVersion();
 574
 575         /* Load kernel */
 576         LoadModule(LoaderBlock, BootPath, "NTOSKRNL.EXE", LoaderSystemCode, &KernelDTE, 30);
 577
 578         /* Load HAL */
 579         LoadModule(LoaderBlock, BootPath, "HAL.DLL", LoaderHalCode, &HalDTE, 45);
 580
 581         /* Load kernel-debugger support dll */
 582         if (OperatingSystemVersion > _WIN32_WINNT_WIN2K)
 583         {
 584                 LoadModule(LoaderBlock, BootPath, "KDCOM.DLL", LoaderSystemCode, &KdComDTE, 60);
 585         }
 586
 587         /* Load all referenced DLLs for kernel, HAL and kdcom.dll */
 588         strcpy(FileName, BootPath);
 589         strcat(FileName, "system32\\");
 590         Status = WinLdrScanImportDescriptorTable(LoaderBlock, FileName, KernelDTE);
 591         Status &= WinLdrScanImportDescriptorTable(LoaderBlock, FileName, HalDTE);
 592         if (KdComDTE)
 593                 Status &= WinLdrScanImportDescriptorTable(LoaderBlock, FileName, KdComDTE);
 594
 595         if (!Status)
 596         {
 597                 UiMessageBox("Error loading imported dll.");
 598                 return;
 599         }
 600
 601         /* Load boot drivers */
 602         UiDrawBackdrop();
 603         UiDrawProgressBarCenter(100, 100, "Loading boot drivers...");
 604         Status = WinLdrLoadBootDrivers(LoaderBlock, (PCHAR)BootPath);
 605         TRACE("Boot drivers loaded with status %d\n", Status);
 606
 607         /* Initialize Phase 1 - no drivers loading anymore */
 608         WinLdrInitializePhase1(LoaderBlock, BootOptions, SystemRoot, BootPath, OperatingSystemVersion);
 609
 610         /* Save entry-point pointer and Loader block VAs */
 611         KiSystemStartup = (KERNEL_ENTRY_POINT)KernelDTE->EntryPoint;
 612         LoaderBlockVA = PaToVa(LoaderBlock);
 613
 614         /* "Stop all motors", change videomode */
 615         MachPrepareForReactOS(Setup);
 616
 617         /* Debugging... */
 618         //DumpMemoryAllocMap();
 619
 620         /* Do the machine specific initialization */
 621         WinLdrSetupMachineDependent(LoaderBlock);
 622
 623         /* Map pages and create memory descriptors */
 624         WinLdrSetupMemoryLayout(LoaderBlock);
 625
 626         /* Set processor context */
 627         WinLdrSetProcessorContext();
 628
 629         /* Save final value of LoaderPagesSpanned */
 630         LoaderBlock->Extension->LoaderPagesSpanned = LoaderPagesSpanned;
 631
 632         TRACE("Hello from paged mode, KiSystemStartup %p, LoaderBlockVA %p!\n",
 633                 KiSystemStartup, LoaderBlockVA);
 634
 635         // Zero KI_USER_SHARED_DATA page
 636         memset((PVOID)KI_USER_SHARED_DATA, 0, MM_PAGE_SIZE);
 637
 638         WinLdrpDumpMemoryDescriptors(LoaderBlockVA);
 639         WinLdrpDumpBootDriver(LoaderBlockVA);
 640         WinLdrpDumpArcDisks(LoaderBlockVA);
 641
 642         //FIXME: If I substitute this debugging checkpoint, GCC will "optimize away" the code below
 643         //while (1) {};
 644         /*asm(".intel_syntax noprefix\n");
 645                 asm("test1:\n");
 646                 asm("jmp test1\n");
 647         asm(".att_syntax\n");*/
 648
 649         /* Pass control */
 650         (*KiSystemStartup)(LoaderBlockVA);
 651 }
 652
 653 VOID
 654 WinLdrpDumpMemoryDescriptors(PLOADER_PARAMETER_BLOCK LoaderBlock)
 655 {
 656         PLIST_ENTRY NextMd;
 657         PMEMORY_ALLOCATION_DESCRIPTOR MemoryDescriptor;
 658
 659         NextMd = LoaderBlock->MemoryDescriptorListHead.Flink;
 660
 661         while (NextMd != &LoaderBlock->MemoryDescriptorListHead)
 662         {
 663                 MemoryDescriptor = CONTAINING_RECORD(NextMd, MEMORY_ALLOCATION_DESCRIPTOR, ListEntry);
 664
 665                 TRACE("BP %08X PC %04X MT %d\n", MemoryDescriptor->BasePage,
 666                         MemoryDescriptor->PageCount, MemoryDescriptor->MemoryType);
 667
 668                 NextMd = MemoryDescriptor->ListEntry.Flink;
 669         }
 670 }
 671
 672 VOID
 673 WinLdrpDumpBootDriver(PLOADER_PARAMETER_BLOCK LoaderBlock)
 674 {
 675         PLIST_ENTRY NextBd;
 676         PBOOT_DRIVER_LIST_ENTRY BootDriver;
 677
 678         NextBd = LoaderBlock->BootDriverListHead.Flink;
 679
 680         while (NextBd != &LoaderBlock->BootDriverListHead)
 681         {
 682                 BootDriver = CONTAINING_RECORD(NextBd, BOOT_DRIVER_LIST_ENTRY, Link);
 683
 684                 TRACE("BootDriver %wZ DTE %08X RegPath: %wZ\n", &BootDriver->FilePath,
 685                         BootDriver->LdrEntry, &BootDriver->RegistryPath);
 686
 687                 NextBd = BootDriver->Link.Flink;
 688         }
 689 }
 690
 691 VOID
 692 WinLdrpDumpArcDisks(PLOADER_PARAMETER_BLOCK LoaderBlock)
 693 {
 694         PLIST_ENTRY NextBd;
 695         PARC_DISK_SIGNATURE ArcDisk;
 696
 697         NextBd = LoaderBlock->ArcDiskInformation->DiskSignatureListHead.Flink;
 698
 699         while (NextBd != &LoaderBlock->ArcDiskInformation->DiskSignatureListHead)
 700         {
 701                 ArcDisk = CONTAINING_RECORD(NextBd, ARC_DISK_SIGNATURE, ListEntry);
 702
 703                 TRACE("ArcDisk %s checksum: 0x%X, signature: 0x%X\n",
 704                         ArcDisk->ArcName, ArcDisk->CheckSum, ArcDisk->Signature);
 705
 706                 NextBd = ArcDisk->ListEntry.Flink;
 707         }
 708 }
 709
 710