[ion] 23809: - It should now be safe to remove the V86 ESP0 hack, since V86 mode works fine (tested on VMWare/QEmu).

Author: ion
Date: Wed Aug 30 23:29:16 2006
New Revision: 23809

URL: http://svn.reactos.org/svn/reactos?rev=23809&view=rev
Log:
- It should now be safe to remove the V86 ESP0 hack, since V86 mode works fine (tested on VMWare/QEmu).

Modified:
    trunk/reactos/ntoskrnl/include/internal/ke.h
    trunk/reactos/ntoskrnl/ke/bug.c
    trunk/reactos/ntoskrnl/ke/i386/ctxswitch.S
    trunk/reactos/ntoskrnl/ke/i386/thread.c

Modified: trunk/reactos/ntoskrnl/include/internal/ke.h
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/include/internal/k...
==============================================================================
--- trunk/reactos/ntoskrnl/include/internal/ke.h (original)
+++ trunk/reactos/ntoskrnl/include/internal/ke.h Wed Aug 30 23:29:16 2006
@@ -48,6 +48,13 @@
     PKINTERRUPT_ROUTINE ChainedDispatch;
     PKINTERRUPT_ROUTINE *FlatDispatch;
 } DISPATCH_INFO, *PDISPATCH_INFO;
+
+typedef PCHAR
+(NTAPI *PKE_BUGCHECK_UNICODE_TO_ANSI)(
+    IN PUNICODE_STRING Unicode,
+    IN PCHAR Ansi,
+    IN ULONG Length
+);

struct _KIRQ_TRAPFRAME;
 struct _KPCR;
@@ -76,6 +83,7 @@
 extern ULONG KeI386EFlagsOrMaskV86;
 extern BOOLEAN KeI386VirtualIntExtensions;
 extern KIDTENTRY KiIdt[];
+extern FAST_MUTEX KernelAddressSpaceLock;

/* MACROS *************************************************************************/

Modified: trunk/reactos/ntoskrnl/ke/bug.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/ke/bug.c?rev=23809...
==============================================================================
--- trunk/reactos/ntoskrnl/ke/bug.c (original)
+++ trunk/reactos/ntoskrnl/ke/bug.c Wed Aug 30 23:29:16 2006
@@ -24,12 +24,10 @@
     VOID
 );

-extern FAST_MUTEX KernelAddressSpaceLock;
-
 /* GLOBALS *******************************************************************/

-LIST_ENTRY BugcheckCallbackListHead = {NULL,NULL};
-LIST_ENTRY BugcheckReasonCallbackListHead = {NULL,NULL};
+LIST_ENTRY BugcheckCallbackListHead;
+LIST_ENTRY BugcheckReasonCallbackListHead;
 ULONG KeBugCheckActive, KeBugCheckOwner;
 LONG KeBugCheckOwnerRecursionCount;
 PRTL_MESSAGE_RESOURCE_DATA KiBugCodeMessages;
@@ -37,13 +35,6 @@
 ULONG KiHardwareTrigger;
 PUNICODE_STRING KiBugCheckDriver;
 ULONG_PTR KiBugCheckData[5];
-
-typedef PCHAR
-(NTAPI *PKE_BUGCHECK_UNICODE_TO_ANSI)(
-    IN PUNICODE_STRING Unicode,
-    IN PCHAR Ansi,
-    IN ULONG Length
-);

/* PRIVATE FUNCTIONS *********************************************************/

Modified: trunk/reactos/ntoskrnl/ke/i386/ctxswitch.S
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/ke/i386/ctxswitch....
==============================================================================
--- trunk/reactos/ntoskrnl/ke/i386/ctxswitch.S (original)
+++ trunk/reactos/ntoskrnl/ke/i386/ctxswitch.S Wed Aug 30 23:29:16 2006
@@ -299,11 +299,6 @@
     /* Save the Exception list */
     push [ebx+KPCR_EXCEPTION_LIST]

-#if WE_DO_NOT_SPEAK_ABOUT_THE_V86_HACK // V86 HACK
-    mov ecx, [ebx+KPCR_TSS]
-    push [ecx+KTSS_ESP0]
-#endif
-
     /* DPC shouldn't be active */
     cmp byte ptr [ebx+KPCR_PRCB_DPC_ROUTINE_ACTIVE], 0
     jnz BugCheckDpc
@@ -398,11 +393,6 @@
     inc dword ptr [esi+KTHREAD_CONTEXT_SWITCHES]
     //inc dword ptr [esi+KPRC_PRCB_CONTEXT_SWITCHES]

-#if WE_DO_NOT_SPEAK_ABOUT_THE_V86_HACK
-    mov ebp, [ebx+KPCR_TSS]
-    pop [ebp+KTSS_ESP0]
-#endif
-
     /* Restore exception list */
     pop [ebx+KPCR_EXCEPTION_LIST]

Modified: trunk/reactos/ntoskrnl/ke/i386/thread.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/ke/i386/thread.c?r...
==============================================================================
--- trunk/reactos/ntoskrnl/ke/i386/thread.c (original)
+++ trunk/reactos/ntoskrnl/ke/i386/thread.c Wed Aug 30 23:29:16 2006
@@ -14,9 +14,6 @@

typedef struct _KSHARED_CTXSWITCH_FRAME
 {
-#if WE_DO_NOT_SPEAK_ABOUT_THE_V86_HACK // V86 HACK
-    ULONG_PTR Esp0;
-#endif
     PVOID ExceptionList;
     KIRQL WaitIrql;
     PVOID RetEip;
@@ -236,11 +233,6 @@
     CtxSwitchFrame->RetEip = KiThreadStartup;
     CtxSwitchFrame->WaitIrql = APC_LEVEL;
     CtxSwitchFrame->ExceptionList = (PVOID)0xFFFFFFFF;
-#if WE_DO_NOT_SPEAK_ABOUT_THE_V86_HACK // V86 HACK
-    CtxSwitchFrame->Esp0 = (ULONG_PTR)Thread->InitialStack -
-                                      sizeof(FX_SAVE_AREA) -
-                                      0x10;
-#endif

/* Save back the new value of the kernel stack. */
     DPRINT("Final Kernel Stack: %x \n", CtxSwitchFrame);