[ros-diffs] [ros-arm-bringup] 34974: implement kiuserinitializeapc, and begin writing test code for kiswapprocess.

[ros-arm-bringup at svn.reactos.org]

Author: ros-arm-bringup
Date: Thu Jul 31 02:06:19 2008
New Revision: 34974

URL: http://svn.reactos.org/svn/reactos?rev=34974&view=rev
Log:
implement kiuserinitializeapc, and begin writing test code for kiswapprocess.

Modified:
    trunk/reactos/ntoskrnl/ke/arm/stubs_asm.s
    trunk/reactos/ntoskrnl/ke/arm/trapc.c
    trunk/reactos/ntoskrnl/ke/arm/usercall.c

Modified: trunk/reactos/ntoskrnl/ke/arm/stubs_asm.s
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/ke/arm/stubs_asm.s?rev=34974&r1=34973&r2=34974&view=diff
==============================================================================
--- trunk/reactos/ntoskrnl/ke/arm/stubs_asm.s [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/ke/arm/stubs_asm.s [iso-8859-1] Thu Jul 31 02:06:19 2008
@@ -32,8 +32,6 @@
 //
 // User Mode Support
 //
-GENERATE_ARM_STUB KiInitializeUserApc
-GENERATE_ARM_STUB KiSwapProcess
 GENERATE_ARM_STUB KeSwitchKernelStack
 GENERATE_ARM_STUB RtlCreateUserThread
 GENERATE_ARM_STUB RtlInitializeContext

Modified: trunk/reactos/ntoskrnl/ke/arm/trapc.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/ke/arm/trapc.c?rev=34974&r1=34973&r2=34974&view=diff
==============================================================================
--- trunk/reactos/ntoskrnl/ke/arm/trapc.c [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/ke/arm/trapc.c [iso-8859-1] Thu Jul 31 02:06:19 2008
@@ -85,6 +85,32 @@
             KeArmWaitForInterrupt();
         }
     }
+}
+
+VOID
+NTAPI
+KiSwapProcess(IN PKPROCESS NewProcess,
+              IN PKPROCESS OldProcess)
+{
+    ARM_TTB_REGISTER TtbRegister;
+    DPRINT1("Swapping from: %p (%16s) to %p (%16s)\n",
+            OldProcess, ((PEPROCESS)OldProcess)->ImageFileName,
+            NewProcess, ((PEPROCESS)NewProcess)->ImageFileName);
+    
+    //
+    // Update the page directory base
+    //
+    TtbRegister.AsUlong = (ULONG)NewProcess->DirectoryTableBase.LowPart;
+    ASSERT(TtbRegister.Reserved == 0);
+    KeArmTranslationTableRegisterSet(TtbRegister);
+    
+    //
+    // FIXME: Flush the TLB
+    //
+    
+    
+    DPRINT1("Survived!\n");
+    while (TRUE);
 }
 
 BOOLEAN

Modified: trunk/reactos/ntoskrnl/ke/arm/usercall.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/ke/arm/usercall.c?rev=34974&r1=34973&r2=34974&view=diff
==============================================================================
--- trunk/reactos/ntoskrnl/ke/arm/usercall.c [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/ke/arm/usercall.c [iso-8859-1] Thu Jul 31 02:06:19 2008
@@ -261,3 +261,47 @@
     //
     Thread->TrapFrame = (PKTRAP_FRAME)TrapFrame->PreviousTrapFrame;
 }
+
+VOID
+NTAPI
+KiInitializeUserApc(IN PKEXCEPTION_FRAME ExceptionFrame,
+                    IN PKTRAP_FRAME TrapFrame,
+                    IN PKNORMAL_ROUTINE NormalRoutine,
+                    IN PVOID NormalContext,
+                    IN PVOID SystemArgument1,
+                    IN PVOID SystemArgument2)
+{
+    CONTEXT Context;
+    ULONG_PTR Stack;
+    ULONG ContextLength;
+    DPRINT1("User APC: %p %p %p\n", NormalContext, SystemArgument1, SystemArgument2);
+    
+    //
+    // Build the user mode context
+    //
+    Context.ContextFlags = CONTEXT_FULL;
+    KeTrapFrameToContext(TrapFrame, ExceptionFrame, &Context);
+    
+    //
+    // Setup the context on the user stack
+    //
+    ContextLength = sizeof(CONTEXT);
+    Stack = (ULONG_PTR)(Context.Sp & ~7) - ContextLength;
+        
+    //
+    // Make sure the stack is valid, and copy the context
+    //
+    ProbeForWrite((PVOID)Stack, ContextLength, sizeof(QUAD));
+    RtlMoveMemory((PVOID)Stack, &Context, sizeof(CONTEXT));
+
+    //
+    // Setup the trap frame when we return to user mode
+    //
+    TrapFrame->R0 = (ULONG)NormalContext;
+    TrapFrame->R1 = (ULONG)SystemArgument1;
+    TrapFrame->R2 = (ULONG)SystemArgument2;
+    TrapFrame->R3 = (ULONG)NormalRoutine;
+    TrapFrame->R8 = Stack;
+    TrapFrame->UserSp = Stack;
+    TrapFrame->UserLr = (ULONG)KeUserApcDispatcher;
+}