IrqlKeRaiseLower rule (wdm)

The IrqlKeRaiseLower rule specifies that the driver does the following when raising and lowering the IRQL:

When the driver calls KeRaiseIrql, it is executing at an IRQL that is lower than or equal to the value of the NewIrql parameter. The driver calls KeLowerIrql only after calling KeRaiseIrql or KeRaiseIrqlToDpcLevel. This rule permits nested calls to KeRaiseIrql, KeRaiseIrqlToDpcLevel, and KeLowerIrql.

Driver model WDM

How to test

At compile time

Run Static Driver Verifier and specify the IrqlKeRaiseLower rule.

Use the following steps to run an analysis of your code:
  1. Prepare your code (use role type declarations).
  2. Run Static Driver Verifier.
  3. View and analyze the results.

For more information, see Using Static Driver Verifier to Find Defects in Drivers.

Applies to

KeLowerIrql KeRaiseIrql

See also

IrqlKeDispatchLte IrqlKeRaiseLower2