How to Stop INT
How to Stop INT
How would i stop Applicatons from calling Interupts?
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In realmode, you dont.
In protected mode, each interrupt gate or trap gate in the IDT has a DPL, which is set to the lowest privilege level able to call it. if you for instance set it to 2, code executing at ring 2, 1 and 0 can call the interrupt. However, code executing at ring 3 will cause a GPF when they try to call that interrupt.
In protected mode, each interrupt gate or trap gate in the IDT has a DPL, which is set to the lowest privilege level able to call it. if you for instance set it to 2, code executing at ring 2, 1 and 0 can call the interrupt. However, code executing at ring 3 will cause a GPF when they try to call that interrupt.