3 * Copyright (C) 1998, 1999, 2000, 2001 ReactOS Team
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 /* $Id: main.c,v 1.147 2003/01/15 19:58:07 chorns Exp $
21 * PROJECT: ReactOS kernel
22 * FILE: ntoskrnl/ke/main.c
23 * PURPOSE: Initalizes the kernel
24 * PROGRAMMER: David Welch (welch@cwcom.net)
29 /* INCLUDES *****************************************************************/
31 #include <ddk/ntddk.h>
32 #include <internal/ntoskrnl.h>
33 #include <reactos/resource.h>
34 #include <internal/mm.h>
35 #include <internal/ifs.h>
36 #include <internal/module.h>
37 #include <internal/ldr.h>
38 #include <internal/ex.h>
39 #include <internal/ps.h>
40 #include <internal/ke.h>
41 #include <internal/io.h>
42 #include <internal/po.h>
43 #include <internal/cc.h>
44 #include <internal/se.h>
45 #include <internal/v86m.h>
46 #include <internal/kd.h>
47 #include <internal/trap.h>
48 #include "../dbg/kdb.h"
49 #include <internal/registry.h>
50 #include <reactos/bugcodes.h>
53 #include <internal/ntosdbg.h>
59 #include <internal/debug.h>
61 /* GLOBALS *******************************************************************/
63 ULONG EXPORTED NtBuildNumber
= KERNEL_VERSION_BUILD
;
64 ULONG EXPORTED NtGlobalFlag
= 0;
65 CHAR EXPORTED KeNumberProcessors
;
66 LOADER_PARAMETER_BLOCK EXPORTED KeLoaderBlock
;
67 ULONG EXPORTED KeDcacheFlushCount
= 0;
68 ULONG EXPORTED KeIcacheFlushCount
= 0;
69 static LOADER_MODULE KeLoaderModules
[64];
70 static UCHAR KeLoaderModuleStrings
[64][256];
71 static UCHAR KeLoaderCommandLine
[256];
72 static ADDRESS_RANGE KeMemoryMap
[64];
73 static ULONG KeMemoryMapRangeCount
;
74 static ULONG FirstKrnlPhysAddr
;
75 static ULONG LastKrnlPhysAddr
;
76 static ULONG LastKernelAddress
;
77 volatile BOOLEAN Initialized
= FALSE
;
79 extern PVOID Ki386InitialStackArray
[MAXIMUM_PROCESSORS
];
82 /* FUNCTIONS ****************************************************************/
85 RtlpCheckFileNameExtension(PCHAR FileName
,
90 Ext
= strrchr(FileName
, '.');
91 if ((Extension
== NULL
) || (*Extension
== 0))
98 if (*Extension
!= '.')
101 if (_stricmp(Ext
, Extension
) == 0)
109 RtlpIsSystemHive(PCHAR FileName
)
113 Name
= strrchr(FileName
, '\\');
123 return((_stricmp(Name
, "system.hiv") == 0) ||
124 (_stricmp(Name
, "system") == 0));
129 InitSystemSharedUserPage (PCSZ ParameterLine
)
131 UNICODE_STRING ArcDeviceName
;
132 UNICODE_STRING ArcName
;
133 UNICODE_STRING BootPath
;
134 UNICODE_STRING DriveDeviceName
;
135 UNICODE_STRING DriveName
;
136 WCHAR DriveNameBuffer
[20];
138 PWCHAR ArcNameBuffer
;
142 OBJECT_ATTRIBUTES ObjectAttributes
;
145 BOOLEAN BootDriveFound
;
149 * The shared user page has been zeroed-out right after creation.
150 * There is NO need to do this again.
153 SharedUserData
->NtProductType
= NtProductWinNt
;
155 BootDriveFound
= FALSE
;
158 * Retrieve the current dos system path
159 * (e.g.: C:\reactos) from the given arc path
160 * (e.g.: multi(0)disk(0)rdisk(0)partititon(1)\reactos)
161 * Format: "<arc_name>\<path> [options...]"
164 /* create local parameter line copy */
165 ParamBuffer
= ExAllocatePool (PagedPool
, 256);
166 strcpy (ParamBuffer
, (char *)ParameterLine
);
167 DPRINT("%s\n", ParamBuffer
);
169 /* cut options off */
170 p
= strchr (ParamBuffer
, ' ');
175 DPRINT("%s\n", ParamBuffer
);
178 p
= strchr (ParamBuffer
, '\\');
181 DPRINT("Boot path: %s\n", p
);
182 RtlCreateUnicodeStringFromAsciiz (&BootPath
, p
);
187 DPRINT("Boot path: %s\n", "\\");
188 RtlCreateUnicodeStringFromAsciiz (&BootPath
, "\\");
190 DPRINT("Arc name: %s\n", ParamBuffer
);
192 /* Only arc name left - build full arc name */
193 ArcNameBuffer
= ExAllocatePool (PagedPool
, 256 * sizeof(WCHAR
));
194 swprintf (ArcNameBuffer
, L
"\\ArcName\\%S", ParamBuffer
);
195 RtlInitUnicodeString (&ArcName
, ArcNameBuffer
);
196 DPRINT("Arc name: %wZ\n", &ArcName
);
198 /* free ParamBuffer */
199 ExFreePool (ParamBuffer
);
201 /* allocate arc device name string */
202 ArcDeviceName
.Length
= 0;
203 ArcDeviceName
.MaximumLength
= 256 * sizeof(WCHAR
);
204 ArcDeviceName
.Buffer
= ExAllocatePool (PagedPool
, 256 * sizeof(WCHAR
));
206 InitializeObjectAttributes (&ObjectAttributes
,
212 Status
= NtOpenSymbolicLinkObject (&Handle
,
213 SYMBOLIC_LINK_ALL_ACCESS
,
215 RtlFreeUnicodeString (&ArcName
);
216 if (!NT_SUCCESS(Status
))
218 RtlFreeUnicodeString (&BootPath
);
219 RtlFreeUnicodeString (&ArcDeviceName
);
220 CPRINT("NtOpenSymbolicLinkObject() failed (Status %x)\n",
226 Status
= NtQuerySymbolicLinkObject (Handle
,
230 if (!NT_SUCCESS(Status
))
232 RtlFreeUnicodeString (&BootPath
);
233 RtlFreeUnicodeString (&ArcDeviceName
);
234 CPRINT("NtQuerySymbolicObject() failed (Status %x)\n",
239 DPRINT("Length: %lu ArcDeviceName: %wZ\n", Length
, &ArcDeviceName
);
242 /* allocate device name string */
243 DriveDeviceName
.Length
= 0;
244 DriveDeviceName
.MaximumLength
= 256 * sizeof(WCHAR
);
245 DriveDeviceName
.Buffer
= ExAllocatePool (PagedPool
, 256 * sizeof(WCHAR
));
247 for (i
= 0; i
< 26; i
++)
249 swprintf (DriveNameBuffer
, L
"\\??\\%C:", 'A' + i
);
250 RtlInitUnicodeString (&DriveName
,
253 InitializeObjectAttributes (&ObjectAttributes
,
259 Status
= NtOpenSymbolicLinkObject (&Handle
,
260 SYMBOLIC_LINK_ALL_ACCESS
,
262 if (!NT_SUCCESS(Status
))
264 DPRINT("Failed to open link %wZ\n",
269 Status
= NtQuerySymbolicLinkObject (Handle
,
272 if (!NT_SUCCESS(Status
))
274 DPRINT("Failed query open link %wZ\n",
278 DPRINT("Opened link: %wZ ==> %wZ\n",
279 &DriveName
, &DriveDeviceName
);
281 if (!RtlCompareUnicodeString (&ArcDeviceName
, &DriveDeviceName
, FALSE
))
283 DPRINT("DOS Boot path: %c:%wZ\n", 'A' + i
, &BootPath
);
284 swprintf(SharedUserData
->NtSystemRoot
,
285 L
"%C:%wZ", 'A' + i
, &BootPath
);
287 BootDriveFound
= TRUE
;
293 RtlFreeUnicodeString (&BootPath
);
294 RtlFreeUnicodeString (&DriveDeviceName
);
295 RtlFreeUnicodeString (&ArcDeviceName
);
297 DPRINT("DosDeviceMap: 0x%x\n", SharedUserData
->DosDeviceMap
);
299 if (BootDriveFound
== FALSE
)
301 DbgPrint("No system drive found!\n");
308 ExpInitializeExecutive(VOID
)
310 LARGE_INTEGER Timeout
;
311 HANDLE ProcessHandle
;
313 ULONG BootDriverCount
;
323 * Fail at runtime if someone has changed various structures without
324 * updating the offsets used for the assembler code.
326 assert(FIELD_OFFSET(KTHREAD
, InitialStack
) == KTHREAD_INITIAL_STACK
);
327 assert(FIELD_OFFSET(KTHREAD
, Teb
) == KTHREAD_TEB
);
328 assert(FIELD_OFFSET(KTHREAD
, KernelStack
) == KTHREAD_KERNEL_STACK
);
329 assert(FIELD_OFFSET(KTHREAD
, PreviousMode
) == KTHREAD_PREVIOUS_MODE
);
330 assert(FIELD_OFFSET(KTHREAD
, TrapFrame
) == KTHREAD_TRAP_FRAME
);
331 assert(FIELD_OFFSET(KTHREAD
, CallbackStack
) == KTHREAD_CALLBACK_STACK
);
332 assert(FIELD_OFFSET(ETHREAD
, ThreadsProcess
) == ETHREAD_THREADS_PROCESS
);
333 assert(FIELD_OFFSET(KPROCESS
, DirectoryTableBase
) ==
334 KPROCESS_DIRECTORY_TABLE_BASE
);
335 assert(FIELD_OFFSET(KTRAP_FRAME
, Reserved9
) == KTRAP_FRAME_RESERVED9
);
336 assert(FIELD_OFFSET(KV86M_TRAP_FRAME
, regs
) == TF_REGS
);
337 assert(FIELD_OFFSET(KV86M_TRAP_FRAME
, orig_ebp
) == TF_ORIG_EBP
);
339 assert(FIELD_OFFSET(KPCR
, ExceptionList
) == KPCR_EXCEPTION_LIST
);
340 assert(FIELD_OFFSET(KPCR
, Self
) == KPCR_SELF
);
341 assert(FIELD_OFFSET(KPCR
, CurrentThread
) == KPCR_CURRENT_THREAD
);
345 KeLowerIrql(DISPATCH_LEVEL
);
349 MmInit1(FirstKrnlPhysAddr
,
352 (PADDRESS_RANGE
)&KeMemoryMap
,
353 KeMemoryMapRangeCount
);
355 /* create default nls tables */
359 * Initialize the kernel debugger
361 KdInitSystem (0, (PLOADER_PARAMETER_BLOCK
)&KeLoaderBlock
);
366 KeLowerIrql(PASSIVE_LEVEL
);
369 KeBugCheck(SECURITY_INITIALIZATION_FAILED
);
374 KeBugCheck(SECURITY1_INITIALIZATION_FAILED
);
376 PiInitProcessManager();
380 if (KdPollBreakIn ())
382 DbgBreakPointWithStatus (DBG_STATUS_CONTROL_C
);
386 * Display version number and copyright/warranty message
388 HalDisplayString("Starting ReactOS "KERNEL_VERSION_STR
" (Build "
389 KERNEL_VERSION_BUILD_STR
")\n");
390 HalDisplayString(RES_STR_LEGAL_COPYRIGHT
);
391 HalDisplayString("\n\nReactOS is free software, covered by the GNU General "
392 "Public License, and you\n");
393 HalDisplayString("are welcome to change it and/or distribute copies of it "
395 HalDisplayString("conditions. There is absolutely no warranty for "
398 /* Initialize all processors */
399 KeNumberProcessors
= 0;
401 while (!HalAllProcessorsStarted())
403 PVOID ProcessorStack
;
405 if (KeNumberProcessors
!= 0)
407 KePrepareForApplicationProcessorInit(KeNumberProcessors
);
408 PsPrepareForApplicationProcessorInit(KeNumberProcessors
);
410 /* Allocate a stack for use when booting the processor */
411 /* FIXME: The nonpaged memory for the stack is not released after use */
413 ExAllocatePool(NonPagedPool
, MM_STACK_SIZE
) + MM_STACK_SIZE
;
414 Ki386InitialStackArray
[((int)KeNumberProcessors
)] =
415 (PVOID
)(ProcessorStack
- MM_STACK_SIZE
);
416 HalInitializeProcessor(KeNumberProcessors
, ProcessorStack
);
417 KeNumberProcessors
++;
420 if (KeNumberProcessors
> 1)
423 "Found %d system processors. [%u MB Memory]\n",
425 (KeLoaderBlock
.MemHigher
+ 1088)/ 1024);
430 "Found 1 system processor. [%u MB Memory]\n",
431 (KeLoaderBlock
.MemHigher
+ 1088)/ 1024);
433 HalDisplayString(str
);
436 * Initialize various critical subsystems
438 HalInitSystem(1, (PLOADER_PARAMETER_BLOCK
)&KeLoaderBlock
);
443 LdrInitModuleManagement();
444 CmInitializeRegistry();
449 FsRtlpInitFileLockingImplementation();
451 /* Report all resources used by hal */
452 HalReportResourceUsage();
455 * Initalize services loaded at boot time
457 DPRINT("%d files loaded\n",KeLoaderBlock
.ModsCount
);
458 for (i
=0; i
< KeLoaderBlock
.ModsCount
; i
++)
460 CPRINT("Module: '%s' at %08lx, length 0x%08lx\n",
461 KeLoaderModules
[i
].String
,
462 KeLoaderModules
[i
].ModStart
,
463 KeLoaderModules
[i
].ModEnd
- KeLoaderModules
[i
].ModStart
);
466 /* Pass 1: load nls files */
467 for (i
= 1; i
< KeLoaderBlock
.ModsCount
; i
++)
469 name
= (PCHAR
)KeLoaderModules
[i
].String
;
470 if (RtlpCheckFileNameExtension(name
, ".nls"))
477 name
= (PCHAR
)KeLoaderModules
[i
+1].String
;
478 if (RtlpCheckFileNameExtension(name
, ".nls"))
480 Mod2Start
= (ULONG
)KeLoaderModules
[i
+1].ModStart
;
481 Mod2End
= (ULONG
)KeLoaderModules
[i
+1].ModEnd
;
483 name
= (PCHAR
)KeLoaderModules
[i
+2].String
;
484 if (RtlpCheckFileNameExtension(name
, ".nls"))
486 Mod3Start
= (ULONG
)KeLoaderModules
[i
+2].ModStart
;
487 Mod3End
= (ULONG
)KeLoaderModules
[i
+2].ModEnd
;
491 /* Initialize nls sections */
492 RtlpInitNlsSections((ULONG
)KeLoaderModules
[i
].ModStart
,
493 (ULONG
)KeLoaderModules
[i
].ModEnd
,
502 /* Pass 2: load registry chunks passed in */
504 for (i
= 1; i
< KeLoaderBlock
.ModsCount
; i
++)
506 start
= KeLoaderModules
[i
].ModStart
;
507 length
= KeLoaderModules
[i
].ModEnd
- start
;
508 name
= (PCHAR
)KeLoaderModules
[i
].String
;
509 if (RtlpCheckFileNameExtension(name
, "") ||
510 RtlpCheckFileNameExtension(name
, ".hiv"))
512 CPRINT("Process registry chunk at %08lx\n", start
);
513 CmImportHive((PCHAR
)start
, length
);
515 if (RtlpIsSystemHive(name
))
521 /* Initialize volatile registry settings */
522 if (SetupBoot
== FALSE
)
524 CmInit2((PCHAR
)KeLoaderBlock
.CommandLine
);
528 * Enter the kernel debugger before starting up the boot drivers
534 IoCreateDriverList();
536 /* Pass 3: process boot loaded drivers */
538 for (i
=1; i
< KeLoaderBlock
.ModsCount
; i
++)
540 start
= KeLoaderModules
[i
].ModStart
;
541 length
= KeLoaderModules
[i
].ModEnd
- start
;
542 name
= (PCHAR
)KeLoaderModules
[i
].String
;
543 if (RtlpCheckFileNameExtension(name
, ".sys") ||
544 RtlpCheckFileNameExtension(name
, ".sym"))
546 CPRINT("Initializing driver '%s' at %08lx, length 0x%08lx\n",
547 name
, start
, length
);
548 LdrInitializeBootStartDriver((PVOID
)start
, name
, length
);
550 if (RtlpCheckFileNameExtension(name
, ".sys"))
554 if (BootDriverCount
== 0)
556 DbgPrint("No boot drivers available.\n");
560 /* Create ARC names for boot devices */
563 /* Create the SystemRoot symbolic link */
564 CPRINT("CommandLine: %s\n", (PUCHAR
)KeLoaderBlock
.CommandLine
);
565 Status
= IoCreateSystemRootLink((PUCHAR
)KeLoaderBlock
.CommandLine
);
566 if (!NT_SUCCESS(Status
))
567 KeBugCheck(INACCESSIBLE_BOOT_DEVICE
);
569 #ifdef DBGPRINT_FILE_LOG
570 /* On the assumption that we can now access disks start up the debug
573 #endif /* DBGPRINT_FILE_LOG */
580 PiInitDefaultLocale();
583 * Start the motherboard enumerator (the HAL)
585 HalInitSystem(2, (PLOADER_PARAMETER_BLOCK
)&KeLoaderBlock
);
588 * Load boot start drivers
590 IopLoadBootStartDrivers();
593 * Load Auto configured drivers
595 LdrLoadAutoConfigDrivers();
598 IoDestroyDriverList();
601 * Assign drive letters
603 IoAssignDriveLetters ((PLOADER_PARAMETER_BLOCK
)&KeLoaderBlock
,
609 * Initialize shared user page:
610 * - set dos system path, dos device map, etc.
612 InitSystemSharedUserPage ((PUCHAR
)KeLoaderBlock
.CommandLine
);
615 * Launch initial process
617 Status
= LdrLoadInitialProcess(&ProcessHandle
,
619 if (!NT_SUCCESS(Status
))
621 KeBugCheckEx(SESSION4_INITIALIZATION_FAILED
, Status
, 0, 0, 0);
625 * Crash the system if the initial process terminates within 5 seconds.
627 Timeout
.QuadPart
= -50000000LL;
628 Status
= NtWaitForSingleObject(ProcessHandle
,
631 if (Status
!= STATUS_TIMEOUT
)
633 KeBugCheckEx(SESSION5_INITIALIZATION_FAILED
, Status
, 0, 0, 0);
636 NtClose(ThreadHandle
);
637 NtClose(ProcessHandle
);
639 PsTerminateSystemThread(STATUS_SUCCESS
);
644 KiSystemStartup(BOOLEAN BootProcessor
)
646 HalInitSystem (0, (PLOADER_PARAMETER_BLOCK
)&KeLoaderBlock
);
651 ExpInitializeExecutive();
654 /* Do application processor initialization */
655 KeApplicationProcessorInit();
656 PsApplicationProcessorInit();
657 KeLowerIrql(PASSIVE_LEVEL
);
658 PsIdleThreadMain(NULL
);
664 _main (ULONG MultiBootMagic
, PLOADER_PARAMETER_BLOCK _LoaderBlock
)
666 * FUNCTION: Called by the boot loader to start the kernel
668 * LoaderBlock = Pointer to boot parameters initialized by the boot
670 * NOTE: The boot parameters are stored in low memory which will become
671 * invalid after the memory managment is initialized so we make a local copy.
676 ULONG last_kernel_address
;
677 extern ULONG _bss_end__
;
682 /* Low level architecture specific initialization */
686 * Copy the parameters to a local buffer because lowmem will go away
688 memcpy(&KeLoaderBlock
, _LoaderBlock
, sizeof(LOADER_PARAMETER_BLOCK
));
689 memcpy(&KeLoaderModules
[1], (PVOID
)KeLoaderBlock
.ModsAddr
,
690 sizeof(LOADER_MODULE
) * KeLoaderBlock
.ModsCount
);
691 KeLoaderBlock
.ModsCount
++;
692 KeLoaderBlock
.ModsAddr
= (ULONG
)&KeLoaderModules
;
695 * Convert a path specification in the grub format to one understood by the
696 * rest of the kernel.
698 if (((PUCHAR
)_LoaderBlock
->CommandLine
)[0] == '(')
700 ULONG DiskNumber
= 0, PartNumber
= 0;
706 if (((PUCHAR
)_LoaderBlock
->CommandLine
)[1] == 'h' &&
707 ((PUCHAR
)_LoaderBlock
->CommandLine
)[2] == 'd')
709 DiskNumber
= ((PUCHAR
)_LoaderBlock
->CommandLine
)[3] - '0';
710 PartNumber
= ((PUCHAR
)_LoaderBlock
->CommandLine
)[5] - '0';
712 strcpy(Temp
, &((PUCHAR
)_LoaderBlock
->CommandLine
)[7]);
713 if ((options
= strchr(Temp
, ' ')) != NULL
)
722 if ((s1
= strrchr(Temp
, '/')) != NULL
)
725 if ((s1
= strrchr(Temp
, '/')) != NULL
)
730 sprintf(KeLoaderCommandLine
,
731 "multi(0)disk(0)rdisk(%d)partition(%d)%s %s",
732 DiskNumber
, PartNumber
+ 1, Temp
, options
);
734 p
= KeLoaderCommandLine
;
735 while (*p
!= 0 && *p
!= ' ')
743 DPRINT1("Command Line: %s\n", KeLoaderCommandLine
);
747 strcpy(KeLoaderCommandLine
, (PUCHAR
)_LoaderBlock
->CommandLine
);
749 KeLoaderBlock
.CommandLine
= (ULONG
)KeLoaderCommandLine
;
751 strcpy(KeLoaderModuleStrings
[0], "ntoskrnl.exe");
752 KeLoaderModules
[0].String
= (ULONG
)KeLoaderModuleStrings
[0];
753 KeLoaderModules
[0].ModStart
= 0xC0000000;
754 KeLoaderModules
[0].ModEnd
= PAGE_ROUND_UP((ULONG
)&_bss_end__
);
755 for (i
= 1; i
< KeLoaderBlock
.ModsCount
; i
++)
758 if ((s
= strrchr((PUCHAR
)KeLoaderModules
[i
].String
, '/')) != 0)
760 strcpy(KeLoaderModuleStrings
[i
], s
+ 1);
764 strcpy(KeLoaderModuleStrings
[i
], (PUCHAR
)KeLoaderModules
[i
].String
);
766 KeLoaderModules
[i
].ModStart
-= 0x200000;
767 KeLoaderModules
[i
].ModStart
+= 0xc0000000;
768 KeLoaderModules
[i
].ModEnd
-= 0x200000;
769 KeLoaderModules
[i
].ModEnd
+= 0xc0000000;
770 KeLoaderModules
[i
].String
= (ULONG
)KeLoaderModuleStrings
[i
];
774 HalnInitializeDisplay((PLOADER_PARAMETER_BLOCK
)&KeLoaderBlock
);
777 HalBase
= KeLoaderModules
[1].ModStart
;
779 PAGE_ROUND_UP(KeLoaderModules
[KeLoaderBlock
.ModsCount
- 1].ModEnd
);
784 LdrSafePEProcessModule((PVOID
)HalBase
, (PVOID
)DriverBase
, (PVOID
)0xC0000000, &DriverSize
);
786 LdrHalBase
= (ULONG_PTR
)DriverBase
;
787 last_kernel_address
= DriverBase
+ DriverSize
;
790 * Process ntoskrnl.exe
792 LdrSafePEProcessModule((PVOID
)0xC0000000, (PVOID
)0xC0000000, (PVOID
)DriverBase
, &DriverSize
);
794 FirstKrnlPhysAddr
= KeLoaderModules
[0].ModStart
- 0xc0000000 + 0x200000;
795 LastKrnlPhysAddr
= last_kernel_address
- 0xc0000000 + 0x200000;
796 LastKernelAddress
= last_kernel_address
;
799 /* FIXME: VMware does not like it when ReactOS is using the BIOS memory map */
800 KeLoaderBlock
.Flags
&= ~MB_FLAGS_MMAP_INFO
;
803 KeMemoryMapRangeCount
= 0;
804 if (KeLoaderBlock
.Flags
& MB_FLAGS_MMAP_INFO
)
806 /* We have a memory map from the nice BIOS */
807 size
= *((PULONG
)(KeLoaderBlock
.MmapAddr
- sizeof(ULONG
)));
809 while (i
< KeLoaderBlock
.MmapLength
)
811 memcpy (&KeMemoryMap
[KeMemoryMapRangeCount
],
812 (PVOID
)(KeLoaderBlock
.MmapAddr
+ i
),
813 sizeof(ADDRESS_RANGE
));
814 KeMemoryMapRangeCount
++;