VOID
NTAPI
Ke386SetIOPL(VOID)
{
PKTHREAD Thread = KeGetCurrentThread();
PKPROCESS Process = Thread->ApcState.Process;
PKTRAP_FRAME TrapFrame;
CONTEXT Context;
/* IOPL was enabled for this process/thread */
Process->Iopl = TRUE;
Thread->Iopl = TRUE;
/* Get the trap frame on exit */
TrapFrame = KeGetTrapFrame(Thread);
/* Convert to a context */
Context.ContextFlags = CONTEXT_CONTROL;
KeTrapFrameToContext(TrapFrame, NULL, &Context);
/* Set the IOPL flag */
Context.EFlags |= EFLAGS_IOPL;
/* Convert back to a trap frame */
KeContextToTrapFrame(&Context, NULL, TrapFrame, CONTEXT_CONTROL, UserMode);
}
VOID
NTAPI
PspUserThreadStartup(IN PKSTART_ROUTINE StartRoutine,
IN PVOID StartContext)
{
PETHREAD Thread;
PTEB Teb;
BOOLEAN DeadThread = FALSE;
KIRQL OldIrql;
PAGED_CODE();
PSTRACE(PS_THREAD_DEBUG,
"StartRoutine: %p StartContext: %p\n", StartRoutine, StartContext);
/* Go to Passive Level */
KeLowerIrql(PASSIVE_LEVEL);
Thread = PsGetCurrentThread();
/* Check if the thread is dead */
if (Thread->DeadThread)
{
/* Remember that we're dead */
DeadThread = TRUE;
}
else
{
/* Get the Locale ID and save Preferred Proc */
Teb = NtCurrentTeb();
Teb->CurrentLocale = MmGetSessionLocaleId();
Teb->IdealProcessor = Thread->Tcb.IdealProcessor;
}
/* Check if this is a dead thread, or if we're hiding */
if (!(Thread->DeadThread) && !(Thread->HideFromDebugger))
{
/* We're not, so notify the debugger */
DbgkCreateThread(Thread, StartContext);
}
/* Make sure we're not already dead */
if (!DeadThread)
{
/* Check if the Prefetcher is enabled */
if (CcPfEnablePrefetcher)
{
/* FIXME: Prepare to prefetch this process */
}
/* Raise to APC */
KeRaiseIrql(APC_LEVEL, &OldIrql);
/* Queue the User APC */
KiInitializeUserApc(KeGetExceptionFrame(&Thread->Tcb),
KeGetTrapFrame(&Thread->Tcb),
PspSystemDllEntryPoint,
NULL,
PspSystemDllBase,
NULL);
/* Lower it back to passive */
KeLowerIrql(PASSIVE_LEVEL);
}
else
{
/* We're dead, kill us now */
PspTerminateThreadByPointer(Thread,
STATUS_THREAD_IS_TERMINATING,
TRUE);
}
/* Do we have a cookie set yet? */
while (!SharedUserData->Cookie)
{
LARGE_INTEGER SystemTime;
ULONG NewCookie;
PKPRCB Prcb;
/* Generate a new cookie */
KeQuerySystemTime(&SystemTime);
Prcb = KeGetCurrentPrcb();
NewCookie = (Prcb->MmPageFaultCount ^ Prcb->InterruptTime ^
SystemTime.u.LowPart ^ SystemTime.u.HighPart ^
(ULONG)(ULONG_PTR)&SystemTime);
/* Set the new cookie*/
InterlockedCompareExchange((LONG*)&SharedUserData->Cookie,
NewCookie,
0);
}
}
