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- Check always the irq trapframe's cs before delivering an user mode apc.

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- Copy the irq trap frame only for apc's.

svn path=/trunk/; revision=5843
This commit is contained in:
Hartmut Birr 2003-08-25 09:14:09 +00:00
parent 78b253a811
commit d09b29c3e8
1 changed files with 26 additions and 19 deletions
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33
reactos/ntoskrnl/ke/i386/irq.c
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@ -16,7 +16,7 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* $Id: irq.c,v 1.34 2003/07/20 12:14:46 dwelch Exp $
/* $Id: irq.c,v 1.35 2003/08/25 09:14:09 hbirr Exp $
*
* PROJECT: ReactOS kernel
* FILE: ntoskrnl/ke/i386/irq.c
@ -485,13 +485,6 @@ KiInterruptDispatch (ULONG irq, PKIRQ_TRAPFRAME Trapframe)
return;
}
CurrentThread = KeGetCurrentThread();
if (NULL != CurrentThread && NULL == CurrentThread->TrapFrame)
{
OldTrapFrame = CurrentThread->TrapFrame;
KeIRQTrapFrameToTrapFrame(Trapframe, &KernelTrapFrame);
CurrentThread->TrapFrame = &KernelTrapFrame;
}
/*
* Enable interrupts
@ -526,20 +519,34 @@ KiInterruptDispatch (ULONG irq, PKIRQ_TRAPFRAME Trapframe)
__asm__("cli\n\t");
HalEndSystemInterrupt (old_level, 0);
if (old_level==PASSIVE_LEVEL && CurrentThread!=NULL &&
CurrentThread->Alerted[1] != 0 &&
CurrentThread->TrapFrame->Cs != KERNEL_CS)
if (old_level==PASSIVE_LEVEL && Trapframe->Cs != KERNEL_CS)
{
KiDeliverNormalApc();
CurrentThread = KeGetCurrentThread();
if (CurrentThread!=NULL && CurrentThread->Alerted[1])
{
DPRINT("PID: %d, TID: %d CS %04x/%04x\n",
((PETHREAD)CurrentThread)->ThreadsProcess->UniqueProcessId,
((PETHREAD)CurrentThread)->Cid.UniqueThread,
Trapframe->Cs,
CurrentThread->TrapFrame ? CurrentThread->TrapFrame->Cs : 0);
if (CurrentThread->TrapFrame == NULL)
{
OldTrapFrame = CurrentThread->TrapFrame;
KeIRQTrapFrameToTrapFrame(Trapframe, &KernelTrapFrame);
CurrentThread->TrapFrame = &KernelTrapFrame;
}
KiDeliverNormalApc();
assert(KeGetCurrentThread() == CurrentThread);
if (NULL != CurrentThread && CurrentThread->TrapFrame == &KernelTrapFrame)
if (CurrentThread->TrapFrame == &KernelTrapFrame)
{
KeTrapFrameToIRQTrapFrame(&KernelTrapFrame, Trapframe);
CurrentThread->TrapFrame = OldTrapFrame;
}
}
}
}
#endif /* MP */