Hi,
I have a doubt about interrupt handling. Can anyone help me ?
"How the check for authirized source of an interrupt is done in
linux ? If it is done by comparing the CPL with the DPL of IDT or
GDT , then if a hardware interrupt comes while the CPU is executing a
process in user mode(CPL = 3), so how does the CPU decide whether to
handle the interrupt or not ?"
Sorry for my poor english.
Regards,
Roushan
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