2.4.ReactOS系统提升IRQL级别KfRaiseIrql 函数

2.4.ReactOS系统提升IRQL级别KfRaiseIrql 函数

2.4.ReactOS系统提升IRQL级别KfRaiseIrql 函数

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KfRaiseIrql 函数

/*********************************************************************** NAME							EXPORTED*	KfRaiseIrql** DESCRIPTION*	Raises the hardware priority (irql)** ARGUMENTS*	NewIrql = Irql to raise to** RETURN VALUE*	previous irq level** NOTES*	Uses fastcall convention*/KIRQL FASTCALL
KfRaiseIrql (KIRQL	NewIrql)
{KIRQL OldIrql;DPRINT("KfRaiseIrql(NewIrql %d)\n", NewIrql);if (NewIrql < KeGetPcr()->Irql){DbgPrint ("%s:%d CurrentIrql %x NewIrql %x\n",__FILE__,__LINE__,KeGetPcr()->Irql,NewIrql);KEBUGCHECK (0);for(;;);}OldIrql = KeGetPcr()->Irql;KeGetPcr()->Irql = NewIrql;return OldIrql;
}

另一篇文中中有方法降低IRQL级别，和切换IRQL级别