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
  18  *  along with this program; if not, write to the Free Software
  19  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20  */
  21
  22 #include <freeldr.h>
  23
  24 #include <ndk/ldrtypes.h>
  25 #include <debug.h>
  26
  27 //FIXME: Do a better way to retrieve Arc disk information
  28 extern ULONG reactos_disk_count;
  29 extern ARC_DISK_SIGNATURE reactos_arc_disk_info[];
  30 extern char reactos_arc_strings[32][256];
  31
  32 extern BOOLEAN UseRealHeap;
  33 extern ULONG LoaderPagesSpanned;
  34
  35 BOOLEAN
  36 WinLdrCheckForLoadedDll(IN OUT PLOADER_PARAMETER_BLOCK WinLdrBlock,
  37                         IN PCH DllName,
  38                         OUT PLDR_DATA_TABLE_ENTRY *LoadedEntry);
  39
  40 // debug stuff
  41 VOID DumpMemoryAllocMap(VOID);
  42 VOID WinLdrpDumpMemoryDescriptors(PLOADER_PARAMETER_BLOCK LoaderBlock);
  43 VOID WinLdrpDumpBootDriver(PLOADER_PARAMETER_BLOCK LoaderBlock);
  44 VOID WinLdrpDumpArcDisks(PLOADER_PARAMETER_BLOCK LoaderBlock);
  45
  46
  47 // Init "phase 0"
  48 VOID
  49 AllocateAndInitLPB(PLOADER_PARAMETER_BLOCK *OutLoaderBlock)
  50 {
  51         PLOADER_PARAMETER_BLOCK LoaderBlock;
  52
  53         /* Allocate and zero-init the LPB */
  54         LoaderBlock = MmHeapAlloc(sizeof(LOADER_PARAMETER_BLOCK));
  55         RtlZeroMemory(LoaderBlock, sizeof(LOADER_PARAMETER_BLOCK));
  56
  57         /* Init three critical lists, used right away */
  58         InitializeListHead(&LoaderBlock->LoadOrderListHead);
  59         InitializeListHead(&LoaderBlock->MemoryDescriptorListHead);
  60         InitializeListHead(&LoaderBlock->BootDriverListHead);
  61
  62         /* Alloc space for NLS (it will be converted to VA in WinLdrLoadNLS) */
  63         LoaderBlock->NlsData = MmHeapAlloc(sizeof(NLS_DATA_BLOCK));
  64         if (LoaderBlock->NlsData == NULL)
  65         {
  66                 UiMessageBox("Failed to allocate memory for NLS table data!");
  67                 return;
  68         }
  69         RtlZeroMemory(LoaderBlock->NlsData, sizeof(NLS_DATA_BLOCK));
  70
  71         *OutLoaderBlock = LoaderBlock;
  72 }
  73
  74 // Init "phase 1"
  75 VOID
  76 WinLdrInitializePhase1(PLOADER_PARAMETER_BLOCK LoaderBlock,
  77                        PCHAR Options,
  78                        PCHAR SystemPath,
  79                        PCHAR BootPath,
  80                        USHORT VersionToBoot)
  81 {
  82         /* Examples of correct options and paths */
  83         //CHAR  Options[] = "/DEBUGPORT=COM1 /BAUDRATE=115200";
  84         //CHAR  Options[] = "/NODEBUG";
  85         //CHAR  SystemRoot[] = "\\WINNT\\";
  86         //CHAR  ArcBoot[] = "multi(0)disk(0)rdisk(0)partition(1)";
  87
  88         CHAR    HalPath[] = "\\";
  89         CHAR    SystemRoot[256];
  90         CHAR    ArcBoot[256];
  91         CHAR    MiscFiles[256];
  92         ULONG i, PathSeparator;
  93         PLOADER_PARAMETER_EXTENSION Extension;
  94
  95         LoaderBlock->u.I386.CommonDataArea = NULL; // Force No ABIOS support
  96
  97         /* Construct SystemRoot and ArcBoot from SystemPath */
  98         PathSeparator = strstr(SystemPath, "\\") - SystemPath;
  99         strncpy(ArcBoot, SystemPath, PathSeparator);
 100         ArcBoot[PathSeparator] = 0;
 101         strcpy(SystemRoot, &SystemPath[PathSeparator]);
 102         strcat(SystemRoot, "\\");
 103
 104         DPRINTM(DPRINT_WINDOWS, "ArcBoot: %s\n", ArcBoot);
 105         DPRINTM(DPRINT_WINDOWS, "SystemRoot: %s\n", SystemRoot);
 106         DPRINTM(DPRINT_WINDOWS, "Options: %s\n", Options);
 107
 108         /* Fill Arc BootDevice */
 109         LoaderBlock->ArcBootDeviceName = MmHeapAlloc(strlen(ArcBoot)+1);
 110         strcpy(LoaderBlock->ArcBootDeviceName, ArcBoot);
 111         LoaderBlock->ArcBootDeviceName = PaToVa(LoaderBlock->ArcBootDeviceName);
 112
 113         /* Fill Arc HalDevice, it matches ArcBoot path */
 114         LoaderBlock->ArcHalDeviceName = MmHeapAlloc(strlen(ArcBoot)+1);
 115         strcpy(LoaderBlock->ArcHalDeviceName, ArcBoot);
 116         LoaderBlock->ArcHalDeviceName = PaToVa(LoaderBlock->ArcHalDeviceName);
 117
 118         /* Fill SystemRoot */
 119         LoaderBlock->NtBootPathName = MmHeapAlloc(strlen(SystemRoot)+1);
 120         strcpy(LoaderBlock->NtBootPathName, SystemRoot);
 121         LoaderBlock->NtBootPathName = PaToVa(LoaderBlock->NtBootPathName);
 122
 123         /* Fill NtHalPathName */
 124         LoaderBlock->NtHalPathName = MmHeapAlloc(strlen(HalPath)+1);
 125         strcpy(LoaderBlock->NtHalPathName, HalPath);
 126         LoaderBlock->NtHalPathName = PaToVa(LoaderBlock->NtHalPathName);
 127
 128         /* Fill load options */
 129         LoaderBlock->LoadOptions = MmHeapAlloc(strlen(Options)+1);
 130         strcpy(LoaderBlock->LoadOptions, Options);
 131         LoaderBlock->LoadOptions = PaToVa(LoaderBlock->LoadOptions);
 132
 133         /* Arc devices */
 134         LoaderBlock->ArcDiskInformation = (PARC_DISK_INFORMATION)MmHeapAlloc(sizeof(ARC_DISK_INFORMATION));
 135         InitializeListHead(&LoaderBlock->ArcDiskInformation->DiskSignatureListHead);
 136
 137         /* Convert ARC disk information from freeldr to a correct format */
 138         for (i = 0; i < reactos_disk_count; i++)
 139         {
 140                 PARC_DISK_SIGNATURE ArcDiskInfo;
 141
 142                 /* Get the ARC structure */
 143                 ArcDiskInfo = (PARC_DISK_SIGNATURE)MmHeapAlloc(sizeof(ARC_DISK_SIGNATURE));
 144                 RtlZeroMemory(ArcDiskInfo, sizeof(ARC_DISK_SIGNATURE));
 145
 146                 /* Copy the data over */
 147                 ArcDiskInfo->Signature = reactos_arc_disk_info[i].Signature;
 148                 ArcDiskInfo->CheckSum = reactos_arc_disk_info[i].CheckSum;
 149
 150                 /* Copy the ARC Name */
 151                 ArcDiskInfo->ArcName = (PCHAR)MmHeapAlloc(sizeof(CHAR)*256);
 152                 strcpy(ArcDiskInfo->ArcName, reactos_arc_disk_info[i].ArcName);
 153                 ArcDiskInfo->ArcName = (PCHAR)PaToVa(ArcDiskInfo->ArcName);
 154
 155                 /* Mark partition table as valid */
 156                 ArcDiskInfo->ValidPartitionTable = TRUE;
 157
 158                 /* Insert into the list */
 159                 InsertTailList(&LoaderBlock->ArcDiskInformation->DiskSignatureListHead,
 160                         &ArcDiskInfo->ListEntry);
 161         }
 162
 163         /* Convert all list's to Virtual address */
 164
 165         /* Convert the ArcDisks list to virtual address */
 166         List_PaToVa(&LoaderBlock->ArcDiskInformation->DiskSignatureListHead);
 167         LoaderBlock->ArcDiskInformation = PaToVa(LoaderBlock->ArcDiskInformation);
 168
 169         /* Convert configuration entries to VA */
 170         ConvertConfigToVA(LoaderBlock->ConfigurationRoot);
 171         LoaderBlock->ConfigurationRoot = PaToVa(LoaderBlock->ConfigurationRoot);
 172
 173         /* Convert all DTE into virtual addresses */
 174         List_PaToVa(&LoaderBlock->LoadOrderListHead);
 175
 176         /* this one will be converted right before switching to
 177            virtual paging mode */
 178         //List_PaToVa(&LoaderBlock->MemoryDescriptorListHead);
 179
 180         /* Convert list of boot drivers */
 181         List_PaToVa(&LoaderBlock->BootDriverListHead);
 182
 183         /* Initialize Extension now */
 184         Extension = MmHeapAlloc(sizeof(LOADER_PARAMETER_EXTENSION));
 185         if (Extension == NULL)
 186         {
 187                 UiMessageBox("Failed to allocate LPB Extension!");
 188                 return;
 189         }
 190         RtlZeroMemory(Extension, sizeof(LOADER_PARAMETER_EXTENSION));
 191
 192         /* Fill LPB extension */
 193         Extension->Size = sizeof(LOADER_PARAMETER_EXTENSION);
 194         Extension->MajorVersion = (VersionToBoot & 0xFF00) >> 8;
 195         Extension->MinorVersion = VersionToBoot & 0xFF;
 196         Extension->Profile.Status = 2;
 197
 198         /* Load drivers database */
 199         strcpy(MiscFiles, BootPath);
 200         strcat(MiscFiles, "AppPatch\\drvmain.sdb");
 201         Extension->DrvDBImage = PaToVa(WinLdrLoadModule(MiscFiles,
 202                 &Extension->DrvDBSize, LoaderRegistryData));
 203
 204         LoaderBlock->Extension = PaToVa(Extension);
 205 }
 206
 207 // Last step before going virtual
 208 void WinLdrSetupForNt(PLOADER_PARAMETER_BLOCK LoaderBlock,
 209                       PVOID *GdtIdt,
 210                       ULONG *PcrBasePage,
 211                       ULONG *TssBasePage)
 212 {
 213         ULONG TssSize;
 214         ULONG TssPages;
 215         ULONG_PTR Pcr = 0;
 216         ULONG_PTR Tss = 0;
 217         ULONG BlockSize, NumPages;
 218
 219         LoaderBlock->u.I386.CommonDataArea = NULL; //CommonDataArea;
 220         LoaderBlock->u.I386.MachineType = 0; // ntldr sets this to 0
 221
 222         /* Allocate 2 pages for PCR */
 223         Pcr = (ULONG_PTR)MmAllocateMemoryWithType(2 * MM_PAGE_SIZE, LoaderStartupPcrPage);
 224         *PcrBasePage = Pcr >> MM_PAGE_SHIFT;
 225
 226         if (Pcr == 0)
 227         {
 228                 UiMessageBox("Can't allocate PCR\n");
 229                 return;
 230         }
 231
 232         /* Allocate TSS */
 233         TssSize = (sizeof(KTSS) + MM_PAGE_SIZE) & ~(MM_PAGE_SIZE - 1);
 234         TssPages = TssSize / MM_PAGE_SIZE;
 235
 236         Tss = (ULONG_PTR)MmAllocateMemoryWithType(TssSize, LoaderMemoryData);
 237
 238         *TssBasePage = Tss >> MM_PAGE_SHIFT;
 239
 240         /* Allocate space for new GDT + IDT */
 241         BlockSize = NUM_GDT*sizeof(KGDTENTRY) + NUM_IDT*sizeof(KIDTENTRY);//FIXME: Use GDT/IDT limits here?
 242         NumPages = (BlockSize + MM_PAGE_SIZE - 1) >> MM_PAGE_SHIFT;
 243         *GdtIdt = (PKGDTENTRY)MmAllocateMemoryWithType(NumPages * MM_PAGE_SIZE, LoaderMemoryData);
 244
 245         if (*GdtIdt == NULL)
 246         {
 247                 UiMessageBox("Can't allocate pages for GDT+IDT!\n");
 248                 return;
 249         }
 250
 251         /* Zero newly prepared GDT+IDT */
 252         RtlZeroMemory(*GdtIdt, NumPages << MM_PAGE_SHIFT);
 253 }
 254
 255 BOOLEAN
 256 WinLdrLoadDeviceDriver(PLOADER_PARAMETER_BLOCK LoaderBlock,
 257                        LPSTR BootPath,
 258                        PUNICODE_STRING FilePath,
 259                        ULONG Flags,
 260                        PLDR_DATA_TABLE_ENTRY *DriverDTE)
 261 {
 262         CHAR FullPath[1024];
 263         CHAR DriverPath[1024];
 264         CHAR DllName[1024];
 265         PCHAR DriverNamePos;
 266         BOOLEAN Status;
 267         PVOID DriverBase;
 268
 269         // Separate the path to file name and directory path
 270         sprintf(DriverPath, "%S", FilePath->Buffer);
 271         DriverNamePos = strrchr(DriverPath, '\\');
 272         if (DriverNamePos != NULL)
 273         {
 274                 // Copy the name
 275                 strcpy(DllName, DriverNamePos+1);
 276
 277                 // Cut out the name from the path
 278                 *(DriverNamePos+1) = 0;
 279         }
 280
 281         DPRINTM(DPRINT_WINDOWS, "DriverPath: %s, DllName: %s, LPB %p\n", DriverPath, DllName, LoaderBlock);
 282
 283
 284         // Check if driver is already loaded
 285         Status = WinLdrCheckForLoadedDll(LoaderBlock, DllName, DriverDTE);
 286         if (Status)
 287         {
 288                 // We've got the pointer to its DTE, just return success
 289                 return TRUE;
 290         }
 291
 292         // It's not loaded, we have to load it
 293         sprintf(FullPath,"%s%S", BootPath, FilePath->Buffer);
 294         Status = WinLdrLoadImage(FullPath, LoaderBootDriver, &DriverBase);
 295         if (!Status)
 296                 return FALSE;
 297
 298         // Allocate a DTE for it
 299         Status = WinLdrAllocateDataTableEntry(LoaderBlock, DllName, DllName, DriverBase, DriverDTE);
 300         if (!Status)
 301         {
 302                 DPRINTM(DPRINT_WINDOWS, "WinLdrAllocateDataTableEntry() failed\n");
 303                 return FALSE;
 304         }
 305
 306         // Modify any flags, if needed
 307         (*DriverDTE)->Flags |= Flags;
 308
 309         // Look for any dependencies it may have, and load them too
 310         sprintf(FullPath,"%s%s", BootPath, DriverPath);
 311         Status = WinLdrScanImportDescriptorTable(LoaderBlock, FullPath, *DriverDTE);
 312         if (!Status)
 313         {
 314                 DPRINTM(DPRINT_WINDOWS, "WinLdrScanImportDescriptorTable() failed for %s\n",
 315                         FullPath);
 316                 return FALSE;
 317         }
 318
 319         return TRUE;
 320 }
 321
 322 BOOLEAN
 323 WinLdrLoadBootDrivers(PLOADER_PARAMETER_BLOCK LoaderBlock,
 324                       LPSTR BootPath)
 325 {
 326         PLIST_ENTRY NextBd;
 327         PBOOT_DRIVER_LIST_ENTRY BootDriver;
 328         BOOLEAN Status;
 329
 330         // Walk through the boot drivers list
 331         NextBd = LoaderBlock->BootDriverListHead.Flink;
 332
 333         while (NextBd != &LoaderBlock->BootDriverListHead)
 334         {
 335                 BootDriver = CONTAINING_RECORD(NextBd, BOOT_DRIVER_LIST_ENTRY, Link);
 336
 337                 DPRINTM(DPRINT_WINDOWS, "BootDriver %wZ DTE %08X RegPath: %wZ\n", &BootDriver->FilePath,
 338                         BootDriver->LdrEntry, &BootDriver->RegistryPath);
 339
 340                 // Paths are relative (FIXME: Are they always relative?)
 341
 342                 // Load it
 343                 Status = WinLdrLoadDeviceDriver(LoaderBlock, BootPath, &BootDriver->FilePath,
 344                         0, &BootDriver->LdrEntry);
 345
 346                 // If loading failed - cry loudly
 347                 //FIXME: Maybe remove it from the list and try to continue?
 348                 if (!Status)
 349                 {
 350                         UiMessageBox("Can't load boot driver!");
 351                         return FALSE;
 352                 }
 353
 354                 // Convert the RegistryPath and DTE addresses to VA since we are not going to use it anymore
 355                 BootDriver->RegistryPath.Buffer = PaToVa(BootDriver->RegistryPath.Buffer);
 356                 BootDriver->LdrEntry = PaToVa(BootDriver->LdrEntry);
 357
 358                 NextBd = BootDriver->Link.Flink;
 359         }
 360
 361         return TRUE;
 362 }
 363
 364 PVOID WinLdrLoadModule(PCSTR ModuleName, ULONG *Size,
 365                                            TYPE_OF_MEMORY MemoryType)
 366 {
 367         PFILE FileHandle;
 368         PVOID PhysicalBase;
 369         ULONG FileSize;
 370         BOOLEAN Status;
 371
 372         //CHAR ProgressString[256];
 373
 374         /* Inform user we are loading files */
 375         //sprintf(ProgressString, "Loading %s...", FileName);
 376         //UiDrawProgressBarCenter(1, 100, ProgressString);
 377
 378         DPRINTM(DPRINT_WINDOWS, "Loading module %s\n", ModuleName);
 379         *Size = 0;
 380
 381         /* Open the image file */
 382         FileHandle = FsOpenFile(ModuleName);
 383
 384         if (FileHandle == NULL)
 385         {
 386                 /* In case of errors, we just return, without complaining to the user */
 387                 return NULL;
 388         }
 389
 390         /* Get this file's size */
 391         FileSize = FsGetFileSize(FileHandle);
 392         *Size = FileSize;
 393
 394         /* Allocate memory */
 395         PhysicalBase = MmAllocateMemoryWithType(FileSize, MemoryType);
 396         if (PhysicalBase == NULL)
 397         {
 398                 FsCloseFile(FileHandle);
 399                 return NULL;
 400         }
 401
 402         /* Load whole file */
 403         Status = FsReadFile(FileHandle, FileSize, NULL, PhysicalBase);
 404         if (!Status)
 405         {
 406                 FsCloseFile(FileHandle);
 407                 return NULL;
 408         }
 409
 410         DPRINTM(DPRINT_WINDOWS, "Loaded %s at 0x%x with size 0x%x\n", ModuleName, PhysicalBase, FileSize);
 411
 412         /* We are done with the file - close it */
 413         FsCloseFile(FileHandle);
 414
 415         return PhysicalBase;
 416 }
 417
 418
 419 VOID
 420 LoadAndBootWindows(PCSTR OperatingSystemName, USHORT OperatingSystemVersion)
 421 {
 422         CHAR  MsgBuffer[256];
 423         CHAR  SystemPath[512], SearchPath[512];
 424         CHAR  FileName[512];
 425         CHAR  BootPath[512];
 426         CHAR  BootOptions[256];
 427         PVOID NtosBase = NULL, HalBase = NULL, KdComBase = NULL;
 428         BOOLEAN Status;
 429         ULONG SectionId;
 430         ULONG BootDevice;
 431         PLOADER_PARAMETER_BLOCK LoaderBlock, LoaderBlockVA;
 432         KERNEL_ENTRY_POINT KiSystemStartup;
 433         PLDR_DATA_TABLE_ENTRY KernelDTE, HalDTE, KdComDTE = NULL;
 434         // Mm-related things
 435         PVOID GdtIdt;
 436         ULONG PcrBasePage=0;
 437         ULONG TssBasePage=0;
 438
 439         //sprintf(MsgBuffer,"Booting Microsoft(R) Windows(R) OS version '%04x' is not implemented yet", OperatingSystemVersion);
 440         //UiMessageBox(MsgBuffer);
 441
 442         // Open the operating system section
 443         // specified in the .ini file
 444         if (!IniOpenSection(OperatingSystemName, &SectionId))
 445         {
 446                 sprintf(MsgBuffer,"Operating System section '%s' not found in freeldr.ini", OperatingSystemName);
 447                 UiMessageBox(MsgBuffer);
 448                 return;
 449         }
 450
 451         UiDrawBackdrop();
 452         UiDrawStatusText("Detecting Hardware...");
 453         UiDrawProgressBarCenter(1, 100, "Loading Windows...");
 454
 455         /* Make sure the system path is set in the .ini file */
 456         if (!IniReadSettingByName(SectionId, "SystemPath", SystemPath, sizeof(SystemPath)))
 457         {
 458                 UiMessageBox("System path not specified for selected operating system.");
 459                 return;
 460         }
 461
 462         /* Read booting options */
 463         if (!IniReadSettingByName(SectionId, "Options", BootOptions, sizeof(BootOptions)))
 464         {
 465                 /* Nothing read, make the string empty */
 466                 strcpy(BootOptions, "");
 467         }
 468
 469         /* Normalize system path */
 470         if (!MachDiskNormalizeSystemPath(SystemPath, sizeof(SystemPath)))
 471         {
 472                 UiMessageBox("Invalid system path");
 473                 return;
 474         }
 475
 476         /* Let user know we started loading */
 477         UiDrawStatusText("Loading...");
 478
 479         /* Try to open system drive */
 480         BootDevice = 0xffffffff;
 481         if (!FsOpenSystemVolume(SystemPath, BootPath, &BootDevice))
 482         {
 483                 UiMessageBox("Failed to open boot drive.");
 484                 return;
 485         }
 486
 487         /* append a backslash */
 488         if ((strlen(BootPath)==0) ||
 489             BootPath[strlen(BootPath)] != '\\')
 490                 strcat(BootPath, "\\");
 491
 492         DPRINTM(DPRINT_WINDOWS,"SystemRoot: '%s'\n", BootPath);
 493
 494         /* Allocate and minimalistic-initialize LPB */
 495         AllocateAndInitLPB(&LoaderBlock);
 496
 497         /* Detect hardware */
 498         UseRealHeap = TRUE;
 499         LoaderBlock->ConfigurationRoot = MachHwDetect();
 500
 501         /* Load kernel */
 502         strcpy(FileName, BootPath);
 503         strcat(FileName, "SYSTEM32\\NTOSKRNL.EXE");
 504         Status = WinLdrLoadImage(FileName, LoaderSystemCode, &NtosBase);
 505         DPRINTM(DPRINT_WINDOWS, "Ntos loaded with status %d at %p\n", Status, NtosBase);
 506
 507         /* Load HAL */
 508         strcpy(FileName, BootPath);
 509         strcat(FileName, "SYSTEM32\\HAL.DLL");
 510         Status = WinLdrLoadImage(FileName, LoaderHalCode, &HalBase);
 511         DPRINTM(DPRINT_WINDOWS, "HAL loaded with status %d at %p\n", Status, HalBase);
 512
 513         /* Load kernel-debugger support dll */
 514         if (OperatingSystemVersion > _WIN32_WINNT_WIN2K)
 515         {
 516                 strcpy(FileName, BootPath);
 517                 strcat(FileName, "SYSTEM32\\KDCOM.DLL");
 518                 Status = WinLdrLoadImage(FileName, LoaderBootDriver, &KdComBase);
 519                 DPRINTM(DPRINT_WINDOWS, "KdCom loaded with status %d at %p\n", Status, KdComBase);
 520         }
 521
 522         /* Allocate data table entries for above-loaded modules */
 523         WinLdrAllocateDataTableEntry(LoaderBlock, "ntoskrnl.exe",
 524                 "WINDOWS\\SYSTEM32\\NTOSKRNL.EXE", NtosBase, &KernelDTE);
 525         WinLdrAllocateDataTableEntry(LoaderBlock, "hal.dll",
 526                 "WINDOWS\\SYSTEM32\\HAL.DLL", HalBase, &HalDTE);
 527         if (OperatingSystemVersion > _WIN32_WINNT_WIN2K)
 528         {
 529                 WinLdrAllocateDataTableEntry(LoaderBlock, "kdcom.dll",
 530                         "WINDOWS\\SYSTEM32\\KDCOM.DLL", KdComBase, &KdComDTE);
 531         }
 532
 533         /* Load all referenced DLLs for kernel, HAL and kdcom.dll */
 534         strcpy(SearchPath, BootPath);
 535         strcat(SearchPath, "SYSTEM32\\");
 536         WinLdrScanImportDescriptorTable(LoaderBlock, SearchPath, KernelDTE);
 537         WinLdrScanImportDescriptorTable(LoaderBlock, SearchPath, HalDTE);
 538         if (KdComDTE)
 539                 WinLdrScanImportDescriptorTable(LoaderBlock, SearchPath, KdComDTE);
 540
 541         /* Load Hive, and then NLS data, OEM font, and prepare boot drivers list */
 542         Status = WinLdrLoadAndScanSystemHive(LoaderBlock, BootPath);
 543         DPRINTM(DPRINT_WINDOWS, "SYSTEM hive loaded and scanned with status %d\n", Status);
 544
 545         /* Load boot drivers */
 546         Status = WinLdrLoadBootDrivers(LoaderBlock, BootPath);
 547         DPRINTM(DPRINT_WINDOWS, "Boot drivers loaded with status %d\n", Status);
 548
 549         /* Alloc PCR, TSS, do magic things with the GDT/IDT */
 550         WinLdrSetupForNt(LoaderBlock, &GdtIdt, &PcrBasePage, &TssBasePage);
 551
 552         /* Initialize Phase 1 - no drivers loading anymore */
 553         WinLdrInitializePhase1(LoaderBlock, BootOptions, SystemPath, BootPath, OperatingSystemVersion);
 554
 555         /* Save entry-point pointer and Loader block VAs */
 556         KiSystemStartup = (KERNEL_ENTRY_POINT)KernelDTE->EntryPoint;
 557         LoaderBlockVA = PaToVa(LoaderBlock);
 558
 559         /* "Stop all motors", change videomode */
 560         if (OperatingSystemVersion < _WIN32_WINNT_WIN2K)
 561                 MachPrepareForReactOS(TRUE);
 562         else
 563                 MachPrepareForReactOS(FALSE);
 564
 565         /* Debugging... */
 566         //DumpMemoryAllocMap();
 567
 568         /* Turn on paging mode of CPU*/
 569         WinLdrTurnOnPaging(LoaderBlock, PcrBasePage, TssBasePage, GdtIdt);
 570
 571         /* Save final value of LoaderPagesSpanned */
 572         LoaderBlock->Extension->LoaderPagesSpanned = LoaderPagesSpanned;
 573
 574         DPRINTM(DPRINT_WINDOWS, "Hello from paged mode, KiSystemStartup %p, LoaderBlockVA %p!\n",
 575                 KiSystemStartup, LoaderBlockVA);
 576
 577         WinLdrpDumpMemoryDescriptors(LoaderBlockVA);
 578         WinLdrpDumpBootDriver(LoaderBlockVA);
 579         WinLdrpDumpArcDisks(LoaderBlockVA);
 580
 581         //FIXME: If I substitute this debugging checkpoint, GCC will "optimize away" the code below
 582         //while (1) {};
 583         /*asm(".intel_syntax noprefix\n");
 584                 asm("test1:\n");
 585                 asm("jmp test1\n");
 586         asm(".att_syntax\n");*/
 587
 588         /* Pass control */
 589         (*KiSystemStartup)(LoaderBlockVA);
 590
 591         return;
 592 }
 593
 594 VOID
 595 WinLdrpDumpMemoryDescriptors(PLOADER_PARAMETER_BLOCK LoaderBlock)
 596 {
 597         PLIST_ENTRY NextMd;
 598         PMEMORY_ALLOCATION_DESCRIPTOR MemoryDescriptor;
 599
 600         NextMd = LoaderBlock->MemoryDescriptorListHead.Flink;
 601
 602         while (NextMd != &LoaderBlock->MemoryDescriptorListHead)
 603         {
 604                 MemoryDescriptor = CONTAINING_RECORD(NextMd, MEMORY_ALLOCATION_DESCRIPTOR, ListEntry);
 605
 606                 DPRINTM(DPRINT_WINDOWS, "BP %08X PC %04X MT %d\n", MemoryDescriptor->BasePage,
 607                         MemoryDescriptor->PageCount, MemoryDescriptor->MemoryType);
 608
 609                 NextMd = MemoryDescriptor->ListEntry.Flink;
 610         }
 611 }
 612
 613 VOID
 614 WinLdrpDumpBootDriver(PLOADER_PARAMETER_BLOCK LoaderBlock)
 615 {
 616         PLIST_ENTRY NextBd;
 617         PBOOT_DRIVER_LIST_ENTRY BootDriver;
 618
 619         NextBd = LoaderBlock->BootDriverListHead.Flink;
 620
 621         while (NextBd != &LoaderBlock->BootDriverListHead)
 622         {
 623                 BootDriver = CONTAINING_RECORD(NextBd, BOOT_DRIVER_LIST_ENTRY, Link);
 624
 625                 DPRINTM(DPRINT_WINDOWS, "BootDriver %wZ DTE %08X RegPath: %wZ\n", &BootDriver->FilePath,
 626                         BootDriver->LdrEntry, &BootDriver->RegistryPath);
 627
 628                 NextBd = BootDriver->Link.Flink;
 629         }
 630 }
 631
 632 VOID
 633 WinLdrpDumpArcDisks(PLOADER_PARAMETER_BLOCK LoaderBlock)
 634 {
 635         PLIST_ENTRY NextBd;
 636         PARC_DISK_SIGNATURE ArcDisk;
 637
 638         NextBd = LoaderBlock->ArcDiskInformation->DiskSignatureListHead.Flink;
 639
 640         while (NextBd != &LoaderBlock->ArcDiskInformation->DiskSignatureListHead)
 641         {
 642                 ArcDisk = CONTAINING_RECORD(NextBd, ARC_DISK_SIGNATURE, ListEntry);
 643
 644                 DPRINTM(DPRINT_WINDOWS, "ArcDisk %s checksum: 0x%X, signature: 0x%X\n",
 645                         ArcDisk->ArcName, ArcDisk->CheckSum, ArcDisk->Signature);
 646
 647                 NextBd = ArcDisk->ListEntry.Flink;
 648         }
 649 }
 650
 651