VOID
LoadAndBootWindows(IN OperatingSystemItem* OperatingSystem,
IN USHORT OperatingSystemVersion)
{
ULONG_PTR SectionId;
PCSTR SectionName = OperatingSystem->SystemPartition;
CHAR SettingsValue[80];
BOOLEAN HasSection;
CHAR BootPath[MAX_PATH];
CHAR FileName[MAX_PATH];
CHAR BootOptions[256];
PCHAR File;
BOOLEAN Status;
PLOADER_PARAMETER_BLOCK LoaderBlock;
// Get OS setting value
SettingsValue[0] = ANSI_NULL;
IniOpenSection("Operating Systems", &SectionId);
IniReadSettingByName(SectionId, SectionName, SettingsValue, sizeof(SettingsValue));
// Open the operating system section
// specified in the .ini file
HasSection = IniOpenSection(SectionName, &SectionId);
UiDrawBackdrop();
UiDrawProgressBarCenter(1, 100, "Loading NT...");
/* Read the system path is set in the .ini file */
if (!HasSection ||
!IniReadSettingByName(SectionId, "SystemPath", BootPath, sizeof(BootPath)))
{
strcpy(BootPath, SectionName);
}
/* Special case for LiveCD */
if (!_strnicmp(BootPath, "LiveCD", strlen("LiveCD")))
{
strcpy(FileName, BootPath + strlen("LiveCD"));
MachDiskGetBootPath(BootPath, sizeof(BootPath));
strcat(BootPath, FileName);
}
/* Append a backslash */
if ((strlen(BootPath)==0) || BootPath[strlen(BootPath)] != '\\')
strcat(BootPath, "\\");
/* Read booting options */
if (!HasSection || !IniReadSettingByName(SectionId, "Options", BootOptions, sizeof(BootOptions)))
{
/* Get options after the title */
PCSTR p = SettingsValue;
while (*p == ' ' || *p == '"')
p++;
while (*p != '\0' && *p != '"')
p++;
strcpy(BootOptions, p);
TRACE("BootOptions: '%s'\n", BootOptions);
}
/* Append boot-time options */
AppendBootTimeOptions(BootOptions);
/* Check if a ramdisk file was given */
File = strstr(BootOptions, "/RDPATH=");
if (File)
{
/* Copy the file name and everything else after it */
strcpy(FileName, File + 8);
/* Null-terminate */
*strstr(FileName, " ") = ANSI_NULL;
/* Load the ramdisk */
RamDiskLoadVirtualFile(FileName);
}
/* Let user know we started loading */
//UiDrawStatusText("Loading...");
TRACE("BootPath: '%s'\n", BootPath);
/* Allocate and minimalistic-initialize LPB */
AllocateAndInitLPB(&LoaderBlock);
#ifdef _M_IX86
/* Setup redirection support */
WinLdrSetupEms(BootOptions);
#endif
/* Load Hive */
UiDrawBackdrop();
UiDrawProgressBarCenter(15, 100, "Loading system hive...");
Status = WinLdrInitSystemHive(LoaderBlock, BootPath);
TRACE("SYSTEM hive %s\n", (Status ? "loaded" : "not loaded"));
/* Load NLS data, OEM font, and prepare boot drivers list */
Status = WinLdrScanSystemHive(LoaderBlock, BootPath);
TRACE("SYSTEM hive %s\n", (Status ? "scanned" : "not scanned"));
/* Finish loading */
LoadAndBootWindowsCommon(OperatingSystemVersion,
LoaderBlock,
BootOptions,
BootPath,
0);
}
VOID
LoadAndBootWindowsCommon(
USHORT OperatingSystemVersion,
PLOADER_PARAMETER_BLOCK LoaderBlock,
LPCSTR BootOptions,
LPCSTR BootPath,
BOOLEAN Setup)
{
PLOADER_PARAMETER_BLOCK LoaderBlockVA;
BOOLEAN Success;
PLDR_DATA_TABLE_ENTRY KernelDTE;
KERNEL_ENTRY_POINT KiSystemStartup;
LPCSTR SystemRoot;
TRACE("LoadAndBootWindowsCommon()\n");
#ifdef _M_IX86
/* Setup redirection support */
WinLdrSetupEms((PCHAR)BootOptions);
#endif
/* Convert BootPath to SystemRoot */
SystemRoot = strstr(BootPath, "\\");
/* Detect hardware */
LoaderBlock->ConfigurationRoot = MachHwDetect();
if (OperatingSystemVersion == 0)
OperatingSystemVersion = WinLdrDetectVersion();
/* Load the operating system core: the Kernel, the HAL and the Kernel Debugger Transport DLL */
Success = LoadWindowsCore(OperatingSystemVersion,
LoaderBlock,
BootOptions,
BootPath,
&KernelDTE);
if (!Success)
{
UiMessageBox("Error loading NTOS core.");
return;
}
/* Load boot drivers */
UiDrawBackdrop();
UiDrawProgressBarCenter(100, 100, "Loading boot drivers...");
Success = WinLdrLoadBootDrivers(LoaderBlock, BootPath);
TRACE("Boot drivers loading %s\n", Success ? "successful" : "failed");
/* Initialize Phase 1 - no drivers loading anymore */
WinLdrInitializePhase1(LoaderBlock,
BootOptions,
SystemRoot,
BootPath,
OperatingSystemVersion);
/* Save entry-point pointer and Loader block VAs */
KiSystemStartup = (KERNEL_ENTRY_POINT)KernelDTE->EntryPoint;
LoaderBlockVA = PaToVa(LoaderBlock);
/* "Stop all motors", change videomode */
MachPrepareForReactOS(Setup);
/* Cleanup ini file */
IniCleanup();
/* Debugging... */
//DumpMemoryAllocMap();
/* Do the machine specific initialization */
WinLdrSetupMachineDependent(LoaderBlock);
/* Map pages and create memory descriptors */
WinLdrSetupMemoryLayout(LoaderBlock);
/* Set processor context */
WinLdrSetProcessorContext();
/* Save final value of LoaderPagesSpanned */
LoaderBlock->Extension->LoaderPagesSpanned = LoaderPagesSpanned;
TRACE("Hello from paged mode, KiSystemStartup %p, LoaderBlockVA %p!\n",
KiSystemStartup, LoaderBlockVA);
// Zero KI_USER_SHARED_DATA page
memset((PVOID)KI_USER_SHARED_DATA, 0, MM_PAGE_SIZE);
WinLdrpDumpMemoryDescriptors(LoaderBlockVA);
WinLdrpDumpBootDriver(LoaderBlockVA);
#ifndef _M_AMD64
WinLdrpDumpArcDisks(LoaderBlockVA);
#endif
/* Pass control */
(*KiSystemStartup)(LoaderBlockVA);
}
